{ "generated": "2026-10-12T04:03:43Z", "model": "voyage-4", "thresholds": { "T_AUTO": 0.95, "T_FLOOR": 0.65 }, "family_bonus": 0.05, "questions": [ { "qid": "CHE-2021-06-0001-Q003", "text": "EXTERNAL STAKE HOLDERS IN ISM", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "CHE-2021-06-0001", "tray": "new", "candidates": [ { "answer_id": "ISM-DPA-002", "score": 0.4707599878311157, "sibling_score": 0.4707599878311157, "answer_score": null, "sibling_qid": "KOC-2023-03-0172-Q004", "sibling_text": "ism who is responsible for ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "DPA basis : which convention, which code, and who is responsible for ISM", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.4501047730445862, "sibling_score": 0.4501047730445862, "answer_score": null, "sibling_qid": "MUM-2025-09-0457-Q008", "sibling_text": "objectives of ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "ISM-AUD-P02-002", "score": 0.4500734806060791, "sibling_score": 0.4500734806060791, "answer_score": null, "sibling_qid": "KOC-2026-01-2087-Q013", "sibling_text": "what is the purpose of ism internal", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM Code — what it is, purpose, objectives and structure", "cross_family": false } ] }, { "qid": "CHE-2021-06-0001-Q005", "text": "CLEAR GROUNDS", "family": "Surveys - Statutory", "subtopic": "Detention / Clear Ground", "tid": "CHE-2021-06-0001", "tray": "review", "candidates": [ { "answer_id": "DCG-001", "score": 0.7191140651702881, "sibling_score": 0.7191140651702881, "answer_score": 0.24761302918195724, "sibling_qid": "KOC-2026-08-2114-Q003", "sibling_text": "clear grounds", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is meant by \"clear grounds\", under PSC and under SOLAS? Give examples and state the conditions.", "cross_family": false }, { "answer_id": "DCG-003", "score": 0.6482627987861633, "sibling_score": 0.6482627987861633, "answer_score": null, "sibling_qid": "MUM-2026-05-3290-Q006", "sibling_text": "clear grounds examples", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the PSC deficiency code, which code leads to a detainable deficiency, and can you give an example of a \"clear-ground code\"?", "cross_family": false }, { "answer_id": "CAS-ESTOP-002", "score": 0.28879187554121016, "sibling_score": null, "answer_score": 0.28879187554121016, "sibling_qid": "", "sibling_text": "main engine checks after grounding before turning or a kick", "sibling_family": "", "via": "answer_title", "answer_title": "Main-engine checks after grounding, before turning or a kick", "cross_family": false } ] }, { "qid": "CHE-2021-06-0264-Q003", "text": "ALTERNATOR FIELD WINDING PROTECTION?", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator Protection", "tid": "CHE-2021-06-0264", "tray": "review", "candidates": [ { "answer_id": "ALT-GEN-P01-001", "score": 0.7829582095146179, "sibling_score": 0.7829582095146179, "answer_score": 0.5395384192466736, "sibling_qid": "KOL-2026-03-2979-Q001", "sibling_text": "safety protection in alternator he wants to listen fuses in diode and bypass resistor for field winding", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Alternator/generator safeties and protection trips", "cross_family": false }, { "answer_id": "RPT-C-001", "score": 0.7118990421295166, "sibling_score": 0.7118990421295166, "answer_score": null, "sibling_qid": "KOL-2023-09-2677-Q008", "sibling_text": "6 protection device to prevent motorising of paralleled dc alternator and ac alternator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Reverse power in the paralleling picture — where it sits among the alternator safeties", "cross_family": false }, { "answer_id": "ALT-MAINT-C-002", "score": 0.6939525008201599, "sibling_score": 0.6939525008201599, "answer_score": null, "sibling_qid": "MUM-2023-11-1410-Q005", "sibling_text": "alternator winding one phase high alarm reason", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "2. How do you check winding insulation, IR, hotspots and winding condition?", "cross_family": false } ] }, { "qid": "CHE-2021-06-0387-Q002", "text": "Different types of couplings", "family": "General Marine Engineering", "subtopic": "Shafting / Propeller / CPP", "tid": "CHE-2021-06-0387", "tray": "review", "candidates": [ { "answer_id": "SHAFT-CPP-008", "score": 0.7315713763237, "sibling_score": 0.7315713763237, "answer_score": 0.41413939744234085, "sibling_qid": "MUM-2025-12-2899-Q019", "sibling_text": "types of coupling", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "8. Shaft-line couplings, transmission & feathering", "cross_family": false }, { "answer_id": "RGEAR-002", "score": 0.6379629373550415, "sibling_score": 0.6379629373550415, "answer_score": 0.4303666800260544, "sibling_qid": "KOL-2016-08-2068-Q015", "sibling_text": "flexible coupling types use", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Flexible coupling — types, working, and where it is used in the engine room", "cross_family": false }, { "answer_id": "SHAFT-ALN-003", "score": 0.5645679831504822, "sibling_score": 0.5645679831504822, "answer_score": null, "sibling_qid": "MUM-2024-07-1084-Q013", "sibling_text": "coupling alignment", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Coupling alignment, shaft trueness and matching points", "cross_family": true } ] }, { "qid": "CHE-2021-06-0508-Q002", "text": "which type of vessel", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2021-06-0508", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8349187970161438, "sibling_score": 0.8349187970161438, "answer_score": null, "sibling_qid": "CHE-2026-02-0249-Q001", "sibling_text": "which type of vessel", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "CHEM-PA-011", "score": 0.7686165571212769, "sibling_score": 0.7686165571212769, "answer_score": null, "sibling_qid": "MUM-2026-03-2938-Q002", "sibling_text": "which vessel", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "What ‘en route’ means for Annex II discharge", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7675102353096008, "sibling_score": 0.7675102353096008, "answer_score": null, "sibling_qid": "CHE-2026-02-0247-Q001", "sibling_text": "what type of engine vessel", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "CHE-2021-06-0508-Q003", "text": "What about rest of the papers", "family": "Status & Introduction", "subtopic": "Exam Status", "tid": "CHE-2021-06-0508", "tray": "new", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.35888323187828064, "sibling_score": 0.35888323187828064, "answer_score": null, "sibling_qid": "MUM-2026-05-3187-Q001", "sibling_text": "status of other orals and written", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": true }, { "answer_id": "ISM-SMCDOC-A-001", "score": 0.35733461380004883, "sibling_score": 0.35733461380004883, "answer_score": null, "sibling_qid": "KOL-2021-08-0549-Q005", "sibling_text": "doc and various documents related to it", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM certificates: the DOC and SMC family", "cross_family": true }, { "answer_id": "WMAT-170-010", "score": 0.34775495529174805, "sibling_score": 0.34775495529174805, "answer_score": null, "sibling_qid": "CHE-2026-05-0597-Q012", "sibling_text": "few more questions", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Bearing types, material selection and properties: where each is used", "cross_family": true } ] }, { "qid": "CHE-2021-06-0508-Q006", "text": "Davy lamp& explosimeter", "family": "Risk & Safety Management", "subtopic": "Enclosed Space Entry", "tid": "CHE-2021-06-0508", "tray": "new", "candidates": [ { "answer_id": "GAS-DET-008", "score": 0.6234490275382996, "sibling_score": 0.6234490275382996, "answer_score": 0.4858454763889313, "sibling_qid": "CHE-2026-02-0475-Q006", "sibling_text": "explosive meter working", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "Explosimeter: construction, working, calibration, gases detected", "cross_family": false }, { "answer_id": "ESE-P02-003", "score": 0.591709554195404, "sibling_score": 0.591709554195404, "answer_score": 0.3970762863755226, "sibling_qid": "KOL-2025-03-0915-Q005", "sibling_text": "explosimeter will not give accurate reading in which atmosphere", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "ESE-P02-03. Explosimeter (catalytic detector): where it reads wrong", "cross_family": false }, { "answer_id": "ESE-P01-009", "score": 0.5792314410209656, "sibling_score": 0.5792314410209656, "answer_score": null, "sibling_qid": "KOL-2025-09-1051-Q007", "sibling_text": "in what atmosphere explosion meter will not work what is the other name of explosion meter", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "Atmosphere checks, gases to test and safe entry limits", "cross_family": false } ] }, { "qid": "CHE-2021-06-0508-Q009", "text": "Rudder toque during astern high.. why?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "CHE-2021-06-0508", "tray": "new", "candidates": [ { "answer_id": "STEER-055-A-004", "score": 0.6080925464630127, "sibling_score": 0.6080925464630127, "answer_score": null, "sibling_qid": "KOL-2019-02-3212-Q005", "sibling_text": "rudder is taking more to come from one side to the other reasons and maintenance", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Hydraulic faults — air, sluggish response, locking, leakage", "cross_family": false }, { "answer_id": "RUD-DROP-003", "score": 0.5676732659339905, "sibling_score": 0.5676732659339905, "answer_score": null, "sibling_qid": "KOL-2026-01-3903-Q003", "sibling_text": "excessive rudder drop in port actions to take", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Rudder drop at the limit: the decision", "cross_family": false }, { "answer_id": "SPR-STERN-004", "score": 0.5496431589126587, "sibling_score": 0.5496431589126587, "answer_score": 0.3663394570350647, "sibling_qid": "CHE-2026-04-0154-Q003", "sibling_text": "rudder angle of attack slack attack", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Propeller rake & skew", "cross_family": false } ] }, { "qid": "CHE-2021-07-0171-Q005", "text": "Primary and secondary air of boiler?", "family": "Boilers - Operations & Firing", "subtopic": "Boiler Operations", "tid": "CHE-2021-07-0171", "tray": "review", "candidates": [ { "answer_id": "BFS-257-003", "score": 0.7732798457145691, "sibling_score": 0.7732798457145691, "answer_score": 0.5471087276935577, "sibling_qid": "MUM-2026-06-3590-Q003", "sibling_text": "use of primary and secondary air in boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Primary / secondary flame and the purpose of the air register", "cross_family": false }, { "answer_id": "BURNER-TYPE-002", "score": 0.6539263129234314, "sibling_score": 0.6539263129234314, "answer_score": null, "sibling_qid": "MUM-2026-07-3848-Q007", "sibling_text": "turn down ratio comparison of various types of burner cross questions primary secondary tertiary air", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Burner types compared, and primary, secondary and tertiary air", "cross_family": false }, { "answer_id": "UPT-FIRE-001", "score": 0.6398141980171204, "sibling_score": 0.6398141980171204, "answer_score": null, "sibling_qid": "KOC-2026-08-2122-Q003", "sibling_text": "boiler uptake fire actions as 2eng", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "The 4/E reports an uptake fire — your actions as 2/E", "cross_family": false } ] }, { "qid": "CHE-2021-07-0171-Q011S2", "text": "What is globe valve?", "family": "2-Stroke - Components (Other)", "subtopic": "Piston Rings", "tid": "CHE-2021-07-0171", "tray": "new", "candidates": [ { "answer_id": "GV-330-001", "score": 0.6107488870620728, "sibling_score": 0.6107488870620728, "answer_score": 0.4524605184793472, "sibling_qid": "CHE-2026-09-3912-Q006", "sibling_text": "what are the different types of globe valves which type is used where and reasons", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Draw and explain the gate valve — construction, main parts, operation & onboard use", "cross_family": true }, { "answer_id": "SDNR-SDR-001", "score": 0.6034070253372192, "sibling_score": 0.6034070253372192, "answer_score": 0.47761937379837033, "sibling_qid": "KOL-2026-07-4285-Q006", "sibling_text": "globe valve disadvantage", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "SDNR versus a plain globe valve -- telling them apart from outside, and the drawbacks of each", "cross_family": true }, { "answer_id": "GV-330-002", "score": 0.602096676826477, "sibling_score": 0.602096676826477, "answer_score": null, "sibling_qid": "KOL-2026-03-3935-Q002", "sibling_text": "overhauling of globe valve", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Gate valve overhaul, checks & the stuck / not-operating valve", "cross_family": true } ] }, { "qid": "CHE-2021-07-0171-Q011S3", "text": "How the spindle n seat of globe valve connected in different types of globe valve.?", "family": "2-Stroke - Components (Other)", "subtopic": "Piston Rings", "tid": "CHE-2021-07-0171", "tray": "new", "candidates": [ { "answer_id": "GV-330-001", "score": 0.5768701434135437, "sibling_score": 0.5768701434135437, "answer_score": null, "sibling_qid": "CHE-2026-09-3912-Q006", "sibling_text": "what are the different types of globe valves which type is used where and reasons", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Draw and explain the gate valve — construction, main parts, operation & onboard use", "cross_family": true }, { "answer_id": "EXHV-P01-001", "score": 0.5631123781204224, "sibling_score": 0.5631123781204224, "answer_score": null, "sibling_qid": "KOL-2025-07-1814-Q004", "sibling_text": "how spindle is fitted in exhaust valve", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": true }, { "answer_id": "SDNR-SDR-001", "score": 0.5550486445426941, "sibling_score": 0.5550486445426941, "answer_score": 0.5172580361366271, "sibling_qid": "MUM-2025-11-2495-Q005", "sibling_text": "how will u identify sdnr and normal globe valve from outside", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "SDNR versus a plain globe valve -- telling them apart from outside, and the drawbacks of each", "cross_family": true } ] }, { "qid": "CHE-2021-07-0183-Q007", "text": "Oil mist detector hw it detects and gives alarm, hw to identify if false alarm. 2 . Viscotherm not working how to maintain viscosity . What viscosity is used for ME.", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "OMD / Oil Mist Detector", "tid": "CHE-2021-07-0183", "tray": "review", "candidates": [ { "answer_id": "OMD-001", "score": 0.7498335242271423, "sibling_score": 0.7498335242271423, "answer_score": null, "sibling_qid": "KOC-2026-04-1128-Q014", "sibling_text": "oily mist detectors working", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "The OMD alarm sounds on your watch. What are your actions, the checks and crankcase inspection that follow, and what are the alarm levels?", "cross_family": false }, { "answer_id": "LO-TEST-P02-004", "score": 0.6494496464729309, "sibling_score": 0.6494496464729309, "answer_score": null, "sibling_qid": "MUM-2025-07-2332-Q003", "sibling_text": "ae lo testing specific about viscosity how exactly you will know oil is good or bad condition by seeing he want after checking by visgage after visgage flow is not matching your original oil", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Judging LO fit-for-use; changing, ordering and substituting between machinery", "cross_family": false }, { "answer_id": "CCE-322-006", "score": 0.6470334529876709, "sibling_score": 0.6470334529876709, "answer_score": null, "sibling_qid": "MUM-2026-06-3586-Q005", "sibling_text": "me oil mist detector faulty what all checks", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Testing the OMD alarm; alarm and shutdown values", "cross_family": true } ] }, { "qid": "CHE-2021-07-0388-Q005", "text": "Boiler safety valve type , Improved high lift valve special features regarding construction ( lower spring carrier , valve lip etc he said no construction wise), why called improved high lift", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "CHE-2021-07-0388", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.829346239566803, "sibling_score": 0.829346239566803, "answer_score": null, "sibling_qid": "MUM-2026-06-3405-Q017", "sibling_text": "improved high lift safety valve details", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ECON-EGB-004", "score": 0.5187733948230743, "sibling_score": null, "answer_score": 0.5187733948230743, "sibling_qid": "", "sibling_text": "safety valve setting after overhaul why set higher than the boiler setting raise pressure under steam on a calibrated gauge adjust spring compression to lift at the approved set pressure verify re seat and blowdown two valves one at a time the other gagged lock and seal surveyor witnessed values are class approved ship specific set pressure accumulation representative limit and blowdown quote the ", "sibling_family": "", "via": "answer_title", "answer_title": "Safety-valve setting after overhaul & why set higher than the boiler", "cross_family": false }, { "answer_id": "ACSS-002", "score": 0.5185811758041382, "sibling_score": null, "answer_score": 0.5185811758041382, "sibling_qid": "", "sibling_text": "relief safety valves settings testing lifting reasons bursting disc set just above stage working pressure the class standard accumulation limit is about 10 though the exact set point is a maker sms value non isolable from its stage test to the maker s method easing gear or test rig for lifting pressure log and reset", "sibling_family": "", "via": "answer_title", "answer_title": "Relief / safety valves: settings, testing, lifting reasons; bursting disc", "cross_family": false } ] }, { "qid": "CHE-2023-04-0004-Q003", "text": "stake holder in ism", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "CHE-2023-04-0004", "tray": "new", "candidates": [ { "answer_id": "ISM-DPA-002", "score": 0.5446113348007202, "sibling_score": 0.5446113348007202, "answer_score": null, "sibling_qid": "KOC-2023-03-0172-Q004", "sibling_text": "ism who is responsible for ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "DPA basis : which convention, which code, and who is responsible for ISM", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.5049563646316528, "sibling_score": 0.5049563646316528, "answer_score": null, "sibling_qid": "MUM-2025-09-0457-Q008", "sibling_text": "objectives of ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "ISMNC-002", "score": 0.4741884768009186, "sibling_score": 0.4741884768009186, "answer_score": null, "sibling_qid": "MUM-2024-09-0205-Q010", "sibling_text": "mnc is ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a major non-conformity under the ISM Code? Give the definition and name some.", "cross_family": false } ] }, { "qid": "CHE-2023-04-0185-Q001", "text": "Load balancing? What parameters u check while on round?", "family": "Electrical - Generator & Alternator", "subtopic": "Load Sharing Imbalance", "tid": "CHE-2023-04-0185", "tray": "new", "candidates": [ { "answer_id": "IND-CARD-005", "score": 0.5526351928710938, "sibling_score": 0.5526351928710938, "answer_score": 0.3610245555639267, "sibling_qid": "MUM-2022-11-2715-Q020", "sibling_text": "what parameters we check in power balancing", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "How is main-engine power balancing carried out, and how do card curves diagnose a low-power unit?", "cross_family": true }, { "answer_id": "LS-IMB-A-001", "score": 0.5087283253669739, "sibling_score": 0.5087283253669739, "answer_score": null, "sibling_qid": "MUM-2025-11-1769-Q001", "sibling_text": "2 gen are running parallel if one is taking less load compare to other what are the checks u will do", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Two paralleled generators sharing unequal load — cause and correction", "cross_family": false }, { "answer_id": "EMG-DG-P04-005", "score": 0.5054934024810791, "sibling_score": 0.5054934024810791, "answer_score": null, "sibling_qid": "KOC-2026-01-1693-Q007", "sibling_text": "emcy gen load test procedure how many tie breakers location", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Interlocks, paralleling restriction, tie breakers & main-bus connection", "cross_family": false } ] }, { "qid": "CHE-2023-04-0185-Q003", "text": "T/C balancing?", "family": "Turbocharger", "subtopic": "Balancing / Vibration", "tid": "CHE-2023-04-0185", "tray": "review", "candidates": [ { "answer_id": "TC-CS-P01-008", "score": 0.7345560193061829, "sibling_score": 0.7345560193061829, "answer_score": null, "sibling_qid": "KOC-2026-09-2182-Q005", "sibling_text": "static and dynamic balancing of t c", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "H·Static and dynamic balancing of the turbocharger rotor", "cross_family": false }, { "answer_id": "TCS-059-P04-013", "score": 0.6890304684638977, "sibling_score": 0.6890304684638977, "answer_score": 0.3131741791963577, "sibling_qid": "KOL-2025-07-1812-Q002", "sibling_text": "t c matching and balancing in details", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharger matching and balancing", "cross_family": false }, { "answer_id": "TURBO-CS-P03-015", "score": 0.5873190760612488, "sibling_score": 0.5873190760612488, "answer_score": null, "sibling_qid": "KOL-2020-10-3355-Q002", "sibling_text": "ae t c balancing after overhaul in place", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Overhaul: condition-based triggers and rotor balancing", "cross_family": false } ] }, { "qid": "CHE-2023-04-0185-Q004", "text": "Bore cooling liner? How fuel injector cooling is done, cylinder head cooling arrangements?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Injector", "tid": "CHE-2023-04-0185", "tray": "review", "candidates": [ { "answer_id": "FINJ-007", "score": 0.7228053212165833, "sibling_score": 0.7228053212165833, "answer_score": 0.5240669667720794, "sibling_qid": "KOL-2022-10-1713-Q003", "sibling_text": "cooling arrangement for fuel injector", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel injector cooling and fuel circulation / return arrangement", "cross_family": false }, { "answer_id": "FINJ-003", "score": 0.6201432347297668, "sibling_score": 0.6201432347297668, "answer_score": null, "sibling_qid": "KOL-2018-01-1338-Q001", "sibling_text": "what is the latest developement in fuelinjectors of mcc engine cooling", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Sac volume, zero-sac and the slide-type fuel valve development", "cross_family": false }, { "answer_id": "FINJ-002", "score": 0.614344596862793, "sibling_score": 0.614344596862793, "answer_score": null, "sibling_qid": "KOC-2025-11-1976-Q013", "sibling_text": "fuel injector angle on cylinder head", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel injector overhaul and testing — spray pattern and opening pressure", "cross_family": false } ] }, { "qid": "CHE-2023-04-0185-Q005", "text": "Significance of semi build crankshaft? What type of A/E C/shaft?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft Material", "tid": "CHE-2023-04-0185", "tray": "review", "candidates": [ { "answer_id": "CRANK-217-001", "score": 0.716296374797821, "sibling_score": 0.716296374797821, "answer_score": 0.5345355570316315, "sibling_qid": "MUM-2026-01-1240-Q003", "sibling_text": "crankshaft type explain semi built", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankshaft types and how the type is identified", "cross_family": false }, { "answer_id": "CRANK-217-002", "score": 0.6414571404457092, "sibling_score": 0.6414571404457092, "answer_score": 0.5018699258565903, "sibling_qid": "MUM-2026-05-3163-Q008", "sibling_text": "how is semi built crankshaft constructed some cross questions like advantages over fully built and where these type of crankshaft is seen", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Semi-built crankshaft: construction, fitting and comparison", "cross_family": false }, { "answer_id": "CRANK-217-004", "score": 0.6037307977676392, "sibling_score": 0.6037307977676392, "answer_score": null, "sibling_qid": "MUM-2026-02-2570-Q003", "sibling_text": "semi built crank shaft slippage", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankshaft slippage, tell-tale marks and action if found", "cross_family": false } ] }, { "qid": "CHE-2023-04-0390-Q003", "text": "Refer system maintenance and check on daily basis?", "family": "Refrigeration & AC", "subtopic": "Compressor / Leakage / Maintenance", "tid": "CHE-2023-04-0390", "tray": "new", "candidates": [ { "answer_id": "TURBO-CS-P03-014", "score": 0.601434588432312, "sibling_score": 0.601434588432312, "answer_score": null, "sibling_qid": "KOL-2021-10-3468-Q001", "sibling_text": "t c routine maintenance", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Routine maintenance and water-washing; nozzle-ring cleaning", "cross_family": true }, { "answer_id": "SGD-002", "score": 0.5955518484115601, "sibling_score": 0.5955518484115601, "answer_score": null, "sibling_qid": "CHE-2025-08-0407-Q006", "sibling_text": "shaft earthing system working daily checks and maintenance to be done", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "What checks and maintenance are carried out on the shaft earthing / grounding system?", "cross_family": true }, { "answer_id": "SHFT-ERTH-300-002", "score": 0.5955101251602173, "sibling_score": 0.5955101251602173, "answer_score": null, "sibling_qid": "CHE-2026-04-0522-Q011", "sibling_text": "shaft earthing system working daily checks and maintenance to be done", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Checks, monitoring and maintenance", "cross_family": true } ] }, { "qid": "CHE-2023-04-0390-Q004", "text": "What is the reason of \"witness mark on journal pin n web is not matching\"?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft Web / Journal / Shrink Fit", "tid": "CHE-2023-04-0390", "tray": "new", "candidates": [ { "answer_id": "CRPIN-CHK-P01-005", "score": 0.4919483959674835, "sibling_score": 0.4919483959674835, "answer_score": 0.3116050153970718, "sibling_qid": "KOL-2022-08-3562-Q002", "sibling_text": "indication of slippage in journal and web how to rectify", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Journal or crankpin slippage — identifying, investigating, rectifying", "cross_family": false }, { "answer_id": "FCL-P03-001", "score": 0.4657473564147949, "sibling_score": 0.4657473564147949, "answer_score": null, "sibling_qid": "KOL-2022-01-3513-Q003", "sibling_text": "ae timing check was not satisfied with mark alignment method", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "AE / auxiliary-engine fuel pump timing check and adjustment", "cross_family": true }, { "answer_id": "CRANK-217-004", "score": 0.4595242142677307, "sibling_score": 0.4595242142677307, "answer_score": null, "sibling_qid": "MUM-2022-04-2130-Q007", "sibling_text": "significance of punch mark on crankweb tell tale mark he called it as", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankshaft slippage, tell-tale marks and action if found", "cross_family": false } ] }, { "qid": "CHE-2023-11-0391-Q001", "text": "Rudder checks in Dry Dock ?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "CHE-2023-11-0391", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.8314117789268494, "sibling_score": 0.8314117789268494, "answer_score": 0.560111528635025, "sibling_qid": "MUM-2026-07-3733-Q009", "sibling_text": "checks in rudder in dry dock", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "DUS-P5-05", "score": 0.8192167282104492, "sibling_score": 0.8192167282104492, "answer_score": 0.5830738484859467, "sibling_qid": "MUM-2026-05-2994-Q006", "sibling_text": "rudder check in dry dock", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Rudder checks and rudder-blade tightness/leak test in drydock", "cross_family": false }, { "answer_id": "DDHSC-003", "score": 0.5493370801210403, "sibling_score": null, "answer_score": 0.5493370801210403, "sibling_qid": "", "sibling_text": "what checks do you carry out on the hull propeller and rudder in drydock including jumping clearance hull shell plating cracks coating weld seams thickness gauging areas propeller erosion pitting cavitation cracks dye penetrant cone cap tight rope guard propeller drop wear", "sibling_family": "", "via": "answer_title", "answer_title": "What checks do you carry out on the hull, propeller and rudder in drydock, including jumping clearance?", "cross_family": false } ] }, { "qid": "CHE-2023-11-0391-Q002", "text": "Checks to be carried out after hot work in Rudder ?", "family": "Workshop & Welding", "subtopic": "Hot Work", "tid": "CHE-2023-11-0391", "tray": "new", "candidates": [ { "answer_id": "NDT-METH-P03-002", "score": 0.48418086767196655, "sibling_score": 0.48418086767196655, "answer_score": null, "sibling_qid": "KOC-2026-04-0919-Q003", "sibling_text": "after complete the welding of shell plating in dry dock how to check the welded area", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Component crack testing — weld, hull plate, tailshaft, crankshaft, piston, serrations", "cross_family": false }, { "answer_id": "STERN-TUBE-TAIL-SHAFT-004", "score": 0.48278093338012695, "sibling_score": 0.48278093338012695, "answer_score": null, "sibling_qid": "KOC-2025-07-1924-Q011", "sibling_text": "drydock checks as 2e as soon as dock is empty what checks on rudder part", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "", "cross_family": true }, { "answer_id": "AEDEC-291-003", "score": 0.48143333196640015, "sibling_score": 0.48143333196640015, "answer_score": null, "sibling_qid": "KOL-2019-12-3301-Q003", "sibling_text": "ae checks after decarb and recommissioning procedure", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "3. Pre-start checks after decarb / recommissioning", "cross_family": true } ] }, { "qid": "CHE-2023-11-0392-Q001", "text": "Rudder checks in Dry Dock ?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "CHE-2023-11-0392", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.8314117789268494, "sibling_score": 0.8314117789268494, "answer_score": 0.560111528635025, "sibling_qid": "MUM-2026-07-3733-Q009", "sibling_text": "checks in rudder in dry dock", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "DUS-P5-05", "score": 0.819216787815094, "sibling_score": 0.819216787815094, "answer_score": 0.5830738991498947, "sibling_qid": "MUM-2026-05-2994-Q006", "sibling_text": "rudder check in dry dock", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Rudder checks and rudder-blade tightness/leak test in drydock", "cross_family": false }, { "answer_id": "DDHSC-003", "score": 0.5493371307849884, "sibling_score": null, "answer_score": 0.5493371307849884, "sibling_qid": "", "sibling_text": "what checks do you carry out on the hull propeller and rudder in drydock including jumping clearance hull shell plating cracks coating weld seams thickness gauging areas propeller erosion pitting cavitation cracks dye penetrant cone cap tight rope guard propeller drop wear", "sibling_family": "", "via": "answer_title", "answer_title": "What checks do you carry out on the hull, propeller and rudder in drydock, including jumping clearance?", "cross_family": false } ] }, { "qid": "CHE-2023-11-0393-Q001", "text": "Last ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2023-11-0393", "tray": "review", "candidates": [ { "answer_id": "CLASS-NOT-001", "score": 0.6598884463310242, "sibling_score": 0.6598884463310242, "answer_score": null, "sibling_qid": "MUM-2026-06-3644-Q002", "sibling_text": "draw notation of last ship", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is class notation, and how would you explain the notation written for your ship?", "cross_family": true }, { "answer_id": "ANCH-CHN-A-001", "score": 0.6497812867164612, "sibling_score": 0.6497812867164612, "answer_score": null, "sibling_qid": "MUM-2025-03-2273-Q015", "sibling_text": "type of anchor last ship", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Types of anchor & holding characteristics", "cross_family": true }, { "answer_id": "EXHV-P01-001", "score": 0.6370205283164978, "sibling_score": 0.6370205283164978, "answer_score": null, "sibling_qid": "MUM-2026-02-1280-Q001", "sibling_text": "type of ship done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false } ] }, { "qid": "CHE-2023-11-0393-Q002", "text": "Engine type and full name ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2023-11-0393", "tray": "review", "candidates": [ { "answer_id": "ENG-NOM-005", "score": 0.8065237402915955, "sibling_score": 0.8065237402915955, "answer_score": 0.39366399347782133, "sibling_qid": "KOL-2026-09-4295-Q002", "sibling_text": "engine name and full form", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false }, { "answer_id": "ETP-344-P03-001", "score": 0.7114655375480652, "sibling_score": 0.7114655375480652, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.6842286586761475, "sibling_score": 0.6842286586761475, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false } ] }, { "qid": "CHE-2023-11-0393-Q003", "text": "Procedure of Lube oil charging in fridge compressor ? How to make sure no air go inside?", "family": "Refrigeration & AC", "subtopic": "Refrigeration Lubricating Oil / Flock Point / Oil Charging", "tid": "CHE-2023-11-0393", "tray": "review", "candidates": [ { "answer_id": "REEF-COMP-004", "score": 0.7331600785255432, "sibling_score": 0.7331600785255432, "answer_score": 0.5935115337371826, "sibling_qid": "MUM-2026-07-3760-Q005", "sibling_text": "detail the step by step procedures for charging oil into a refrigeration compressor", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Charging, replenishing and draining compressor lube oil — including with no charging pump", "cross_family": false }, { "answer_id": "REEF-COMP-001", "score": 0.7019112706184387, "sibling_score": 0.7019112706184387, "answer_score": null, "sibling_qid": "MUM-2026-05-3285-Q008", "sibling_text": "refer compressor charging precautions", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Reefer/AC compressor safeties and cut-outs — safety valve, HP and LP cut-outs", "cross_family": false }, { "answer_id": "REEF-CHG-004", "score": 0.6965469717979431, "sibling_score": 0.6965469717979431, "answer_score": 0.5927560836076736, "sibling_qid": "KOL-2019-03-3225-Q003", "sibling_text": "how to charge refrigerant how to purge air from connection line before charging not the usual one cant release in armosphere", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "04Where refrigerant is charged, and purging the charging line without releasing refrigerant", "cross_family": false } ] }, { "qid": "CHE-2023-11-0393-Q015", "text": "what inspection will you do on rudder?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "CHE-2023-11-0393", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.772927463054657, "sibling_score": 0.772927463054657, "answer_score": 0.5254297256469727, "sibling_qid": "KOL-2019-08-3269-Q005", "sibling_text": "rudder inspections", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "DUS-P5-05", "score": 0.5745854079723358, "sibling_score": null, "answer_score": 0.5745854079723358, "sibling_qid": "", "sibling_text": "rudder checks and rudder blade tightness leak test in drydock visual checks coating condition cavitation erosion on the blade leading edge propeller side face sacrificial anodes against the approved cathodic protection plan grounding continuity against the approved acceptance criterion plate and weld cracks pintle clearance measured with feeler the numerical acceptance limit is class specific and ", "sibling_family": "", "via": "answer_title", "answer_title": "Rudder checks and rudder-blade tightness/leak test in drydock", "cross_family": false }, { "answer_id": "RUD-DROP-002", "score": 0.5314180016517639, "sibling_score": null, "answer_score": 0.5314180016517639, "sibling_qid": "", "sibling_text": "rudder clearances which where and how taken pintle bush clearance at each pintle top bottom f a and p s on long feeler gauges or pintle od vs bush id by caliper top mid bottom the maximum is the clearance renew the bush at the maker class limit carrier bearing wear down the rudder drop poker trammel gauge hull datum to stock mark against the recorded newbuilding reading", "sibling_family": "", "via": "answer_title", "answer_title": "Rudder clearances: which, where and how taken", "cross_family": false } ] }, { "qid": "CHE-2023-11-0393-Q017", "text": "Which type of ship?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2023-11-0393", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8235139846801758, "sibling_score": 0.8235139846801758, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8043797612190247, "sibling_score": 0.8043797612190247, "answer_score": 0.5256601959466934, "sibling_qid": "MUM-2026-02-0731-Q002", "sibling_text": "what type of ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7976520657539368, "sibling_score": 0.7976520657539368, "answer_score": 0.5402675241231918, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "CHE-2023-11-0394-Q001", "text": "All written cleared?", "family": "Status & Introduction", "subtopic": "Exam Status", "tid": "CHE-2023-11-0394", "tray": "new", "candidates": [ { "answer_id": "DDHSC-002", "score": 0.4763166904449463, "sibling_score": 0.4763166904449463, "answer_score": null, "sibling_qid": "MUM-2026-10-4001-Q007", "sibling_text": "clearances", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Explain the underwater hull inspection and checks carried out as Second Engineer during drydock.", "cross_family": true }, { "answer_id": "UNCLOS-001", "score": 0.4653246998786926, "sibling_score": 0.4653246998786926, "answer_score": null, "sibling_qid": "KOL-2024-06-0843-Q007", "sibling_text": "unclos all", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is UNCLOS? Explain it in detail — full form, purpose and features", "cross_family": true }, { "answer_id": "OWS-15PPM-008", "score": 0.46225079894065857, "sibling_score": 0.46225079894065857, "answer_score": null, "sibling_qid": "MUM-2026-06-3505-Q007", "sibling_text": "ows why flush with fw", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": true } ] }, { "qid": "CHE-2023-11-0394-Q005", "text": "Gangway load test procedure ?", "family": "Auxiliary Equipment", "subtopic": "Dynamic Load Test", "tid": "CHE-2023-11-0394", "tray": "new", "candidates": [ { "answer_id": "LBT-TEST-B-001", "score": 0.5149716138839722, "sibling_score": 0.5149716138839722, "answer_score": null, "sibling_qid": "KOC-2026-05-0044-Q008", "sibling_text": "internal how to do load test of lifeboat", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat/davit load-test proof loads and test conditions", "cross_family": true }, { "answer_id": "EMG-DG-P04-005", "score": 0.5113322734832764, "sibling_score": 0.5113322734832764, "answer_score": null, "sibling_qid": "KOC-2025-11-1630-Q007", "sibling_text": "emcy gen load test procedure how many tie breakers location", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Interlocks, paralleling restriction, tie breakers & main-bus connection", "cross_family": true }, { "answer_id": "WBRT-001", "score": 0.5059142708778381, "sibling_score": 0.5059142708778381, "answer_score": null, "sibling_qid": "CHE-2023-11-0394-Q002", "sibling_text": "procedure of mooring winch brake load test", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Carrying out a mooring-winch brake rendering test", "cross_family": false } ] }, { "qid": "CHE-2023-11-0395-Q006", "text": "Difficulty of cast iron weld ?", "family": "Workshop & Welding", "subtopic": "Cast Iron Welding", "tid": "CHE-2023-11-0395", "tray": "review", "candidates": [ { "answer_id": "WELD-B-001", "score": 0.7810378074645996, "sibling_score": 0.7810378074645996, "answer_score": 0.4577653884887695, "sibling_qid": "MUM-2026-07-3727-Q007", "sibling_text": "cast iron welding difficulties", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding & crack-repair of aluminium and cast iron, including metal stitching", "cross_family": false }, { "answer_id": "LH-ELEC-006", "score": 0.4753664493560791, "sibling_score": null, "answer_score": 0.4753664493560791, "sibling_qid": "", "sibling_text": "6 how would you approach a cast iron valve repair when the examiner probes welding and low hydrogen electrodes first response replace or fit a sound same size valve a welded cast iron repair is a stop gap not equal to new if welding cast iron not a plain mild steel low hydrogen rod the high carbon makes a hard brittle cracking weld", "sibling_family": "", "via": "answer_title", "answer_title": "6. How would you approach a cast-iron valve repair when the examiner probes welding and low-hydrogen electrodes?", "cross_family": false }, { "answer_id": "MATPROP-A-011", "score": 0.4051898390054703, "sibling_score": null, "answer_score": 0.4051898390054703, "sibling_qid": "", "sibling_text": "carbon content and weldability weldability decreases as carbon content rises haz cools fast and forms hard brittle martensite with hydrogen residual stress gives cold cracking", "sibling_family": "", "via": "answer_title", "answer_title": "Carbon content and weldability", "cross_family": false } ] }, { "qid": "CHE-2023-11-0395-Q007", "text": "How it is done ,what precaution which welding rod is used.", "family": "Workshop & Welding", "subtopic": "Cast Iron Welding", "tid": "CHE-2023-11-0395", "tray": "review", "candidates": [ { "answer_id": "LH-ELEC-003", "score": 0.651393711566925, "sibling_score": 0.651393711566925, "answer_score": 0.49846282601356506, "sibling_qid": "MUM-2024-02-2224-Q010", "sibling_text": "how to select the welding rod", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "3. How do you select or order the correct welding electrode or rod?", "cross_family": false }, { "answer_id": "WELD-PATM-002", "score": 0.6396370530128479, "sibling_score": 0.6396370530128479, "answer_score": null, "sibling_qid": "KOL-2020-08-3344-Q002", "sibling_text": "overhead welding precaution from welding point of view what special feature how to select welding current and welding electrode you started with less current what point you will increase current", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Manual metal-arc – electrode and current selection", "cross_family": false }, { "answer_id": "WELD-B-007", "score": 0.6339136362075806, "sibling_score": 0.6339136362075806, "answer_score": 0.456892853975296, "sibling_qid": "KOL-2018-03-3132-Q004", "sibling_text": "precaution during carrying out a overhead welding process", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Overhead welding — precautions, checks and advantages", "cross_family": false } ] }, { "qid": "CHE-2023-11-0395-Q009", "text": "Told me some bearing no and tell me to explain", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Bearing Nomenclature", "tid": "CHE-2023-11-0395", "tray": "new", "candidates": [ { "answer_id": "WMAT-170-001", "score": 0.4974607229232788, "sibling_score": 0.4974607229232788, "answer_score": null, "sibling_qid": "MUM-2026-05-3265-Q003", "sibling_text": "bearing material and more explanation", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "White metal (Babbitt): composition, purpose, properties, layer thickness", "cross_family": false }, { "answer_id": "BCL-592-002", "score": 0.492277055978775, "sibling_score": 0.492277055978775, "answer_score": null, "sibling_qid": "MUM-2025-08-1162-Q009", "sibling_text": "explain all bearing clearances", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Take me through all the clearances you measure on the main engine and how you take each one.", "cross_family": false }, { "answer_id": "BRG-NOM-002", "score": 0.48136645555496216, "sibling_score": 0.48136645555496216, "answer_score": null, "sibling_qid": "CHE-2025-09-0215-Q011", "sibling_text": "some cross questions regarding bearing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Ball, Roller, Radial and Axial Bearings — Choosing the Type", "cross_family": false } ] }, { "qid": "CHE-2023-11-0395-Q012", "text": "Type of bearings", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Bearings / Lubrication", "tid": "CHE-2023-11-0395", "tray": "review", "candidates": [ { "answer_id": "BRG-NOM-002", "score": 0.7940773367881775, "sibling_score": 0.7940773367881775, "answer_score": 0.5837679445743561, "sibling_qid": "CHE-2025-08-0207-Q002", "sibling_text": "typesof bearing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Ball, Roller, Radial and Axial Bearings — Choosing the Type", "cross_family": false }, { "answer_id": "BRG-NOM-005", "score": 0.7687535881996155, "sibling_score": 0.7687535881996155, "answer_score": null, "sibling_qid": "KOC-2025-11-1968-Q008", "sibling_text": "types of bush bearings", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bush, Insert, End-Loaded and Undersize Bearings — and Ordering Data", "cross_family": false }, { "answer_id": "BRG-NOM-001", "score": 0.7351565361022949, "sibling_score": 0.7351565361022949, "answer_score": null, "sibling_qid": "MUM-2026-06-3494-Q008", "sibling_text": "bearing specification", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bearing Numbers, Suffixes and What to State When Ordering", "cross_family": false } ] }, { "qid": "CHE-2023-11-0395-Q013", "text": "In steering room chemical is there written hazardous and 3.1 classification what does it represent.", "family": "Other Conventions", "subtopic": "IMDG Code", "tid": "CHE-2023-11-0395", "tray": "new", "candidates": [ { "answer_id": "HKC-IHM-B-004", "score": 0.6046637892723083, "sibling_score": 0.6046637892723083, "answer_score": null, "sibling_qid": "KOC-2024-10-0433-Q009", "sibling_text": "ihm which all hazardous material you find onboad", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What hazardous materials, including asbestos, are controlled through the IHM?", "cross_family": false }, { "answer_id": "AII-DISCH-005", "score": 0.5787222385406494, "sibling_score": 0.5787222385406494, "answer_score": null, "sibling_qid": "KOC-2026-02-2094-Q012", "sibling_text": "categories of chemical cargoes from which regulations it can be identified", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "How chemical cargo categories are identified and where the requirements are found", "cross_family": true }, { "answer_id": "IBC-BCH-B-006", "score": 0.5780981779098511, "sibling_score": 0.5780981779098511, "answer_score": null, "sibling_qid": "KOL-2025-09-1051-Q003", "sibling_text": "solas code define the types of chemical", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "How a chemical tanker is defined", "cross_family": true } ] }, { "qid": "CHE-2023-11-0395-Q015", "text": "Have you done drydock, which type of ship and asked me you are Dual License candidate", "family": "Status & Introduction", "subtopic": "Experience Related Intro", "tid": "CHE-2023-11-0395", "tray": "new", "candidates": [ { "answer_id": "DUS-P1-04", "score": 0.5983808636665344, "sibling_score": 0.5983808636665344, "answer_score": 0.46655193567276, "sibling_qid": "KOC-2024-02-0298-Q009", "sibling_text": "drydock data given to dock as a 2nd engineer", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Documents, plans and certificates the 2E submits to the drydock", "cross_family": true }, { "answer_id": "DUS-P1-01", "score": 0.5966530442237854, "sibling_score": 0.5966530442237854, "answer_score": null, "sibling_qid": "KOC-2026-08-2122-Q004", "sibling_text": "drydock checks as 2 eng", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Drydock preparation as 2E — full workflow from office confirmation to entry", "cross_family": true }, { "answer_id": "EXHV-P01-001", "score": 0.594573438167572, "sibling_score": 0.594573438167572, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q002", "sibling_text": "what type of ship you have done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false } ] }, { "qid": "CHE-2023-11-0395-Q016", "text": "Tell me something about steam ships repairs you have done .", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2023-11-0395", "tray": "new", "candidates": [ { "answer_id": "SB-PRG-B-001", "score": 0.640450119972229, "sibling_score": 0.640450119972229, "answer_score": null, "sibling_qid": "MUM-2026-06-3449-Q001", "sibling_text": "machinery you have overhauled on ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "In-situ stuffing box overhaul (piston in the engine)", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.6193205714225769, "sibling_score": 0.6193205714225769, "answer_score": null, "sibling_qid": "MUM-2026-03-2606-Q001", "sibling_text": "type of engine and ship major maintenance done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "DCB-OVH-002", "score": 0.5721405744552612, "sibling_score": 0.5721405744552612, "answer_score": null, "sibling_qid": "KOC-2026-03-2008-Q001", "sibling_text": "major overhaul done on ship", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Preparing for a complete unit overhaul or unit survey", "cross_family": true } ] }, { "qid": "CHE-2023-11-0395-Q017", "text": "What will you do if a crack is there on rudder. How to weld.", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "CHE-2023-11-0395", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.651452362537384, "sibling_score": 0.651452362537384, "answer_score": null, "sibling_qid": "MUM-2026-04-2689-Q008", "sibling_text": "rudder crack repair", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "HULL-DD-001", "score": 0.6494201421737671, "sibling_score": 0.6494201421737671, "answer_score": 0.5097538948059082, "sibling_qid": "KOL-2020-11-3360-Q004", "sibling_text": "hull crack repair i told the procedure followed by welding then he asked if crack occurs in the welding again then how will you repair", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "1. Hull plate / shell-weld crack repair in drydock", "cross_family": true }, { "answer_id": "WBS-C-005", "score": 0.629143238067627, "sibling_score": 0.629143238067627, "answer_score": 0.4672780007123947, "sibling_qid": "MUM-2026-01-1238-Q007", "sibling_text": "if crack on deck and need to do welding which welding to do process what are the checks to do welding how to ensure welding is satisfactory", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Crack and leak repair — deck plate, steam line, air receiver and other shipboard cracks", "cross_family": true } ] }, { "qid": "CHE-2023-11-0396-Q001", "text": "tell me how you will know about rudder defectFrom where air is filled for air test.", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "CHE-2023-11-0396", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.6708220839500427, "sibling_score": 0.6708220839500427, "answer_score": null, "sibling_qid": "KOL-2020-10-3353-Q001", "sibling_text": "rudder check in dd and pressure test", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "DUS-P5-05", "score": 0.4353182703256607, "sibling_score": null, "answer_score": 0.4353182703256607, "sibling_qid": "", "sibling_text": "rudder checks and rudder blade tightness leak test in drydock visual checks coating condition cavitation erosion on the blade leading edge propeller side face sacrificial anodes against the approved cathodic protection plan grounding continuity against the approved acceptance criterion plate and weld cracks pintle clearance measured with feeler the numerical acceptance limit is class specific and ", "sibling_family": "", "via": "answer_title", "answer_title": "Rudder checks and rudder-blade tightness/leak test in drydock", "cross_family": false }, { "answer_id": "SAV-005", "score": 0.4352342188358307, "sibling_score": null, "answer_score": 0.4352342188358307, "sibling_qid": "", "sibling_text": "how air is admitted and faults that stop starting air admission", "sibling_family": "", "via": "answer_title", "answer_title": "How air is admitted, and faults that stop starting air admission", "cross_family": false } ] }, { "qid": "CHE-2024-02-0005-Q001", "text": "Type of ship sailed, Bulk carrier,", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2024-02-0005", "tray": "review", "candidates": [ { "answer_id": "SOLAS12-BC-A-001", "score": 0.8772169947624207, "sibling_score": 0.8772169947624207, "answer_score": 0.5888337314128875, "sibling_qid": "MUM-2026-06-3382-Q001", "sibling_text": "type of ship sailed bulk carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "SOLAS definition and scope of a bulk carrier", "cross_family": false }, { "answer_id": "COT-01", "score": 0.7859740853309631, "sibling_score": 0.7859740853309631, "answer_score": null, "sibling_qid": "KOC-2026-04-0892-Q003", "sibling_text": "type of ship sailed tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Oil-tanker types, definitions and cargo capability", "cross_family": false }, { "answer_id": "SOLAS-XII-BC-002", "score": 0.7747410535812378, "sibling_score": 0.7747410535812378, "answer_score": null, "sibling_qid": "KOC-2026-09-2208-Q005", "sibling_text": "bulk carrier as per solas", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Explain SOLAS Chapter XII — the additional safety measures for bulk carriers", "cross_family": true } ] }, { "qid": "CHE-2024-10-0009-Q003", "text": "Inert gas system on LNG Explain ? Difference between sys on oil/product tankers. Working of o2 analyser. Alarm level of o2 and how to increase o2 level.", "family": "Cargo Ops - Tankers", "subtopic": "IG System", "tid": "CHE-2024-10-0009", "tray": "review", "candidates": [ { "answer_id": "COT-P02-13", "score": 0.7227473855018616, "sibling_score": 0.7227473855018616, "answer_score": 0.5530068218708039, "sibling_qid": "KOL-2019-12-0365-Q001", "sibling_text": "why ig system on tankers what is 02 limitation in tanks what happens in ig system if o2 high alarm comes venting to atmosphere", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What indications and automatic actions occur when inert-gas oxygen is high, and how do you safely reduce excessive oxygen in a loaded cargo tank?", "cross_family": false }, { "answer_id": "IGAT-583-003", "score": 0.7158231139183044, "sibling_score": 0.7158231139183044, "answer_score": null, "sibling_qid": "MUM-2022-10-0059-Q004", "sibling_text": "alarms and trip in ig system what is o2 value in chemical tanker", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What are the set values for the IG system alarms and trips — IG line high, low and low-low pressure, oxygen content, PV valve and breaker pressures?", "cross_family": false }, { "answer_id": "IGAT-583-001", "score": 0.6803746819496155, "sibling_score": 0.6803746819496155, "answer_score": 0.5478740066289901, "sibling_qid": "KOL-2024-11-0890-Q004", "sibling_text": "cargo tank fire hazard protection system ig alarms and trips ig blower safeties ig pressure high after blower what safeties o2 analyser working", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "State all the alarms, trips and safety cut-outs provided on a tanker inert gas (IG) system.", "cross_family": false } ] }, { "qid": "CHE-2024-10-0009-Q004", "text": "Why LNG ships use steam propulsion ( electric propulsion nowadays). Safety sys for boilers operating on LNG.", "family": "Cargo Ops - Gas Carriers", "subtopic": "Dual Fuel", "tid": "CHE-2024-10-0009", "tray": "review", "candidates": [ { "answer_id": "IGC-GAS-006", "score": 0.7090235352516174, "sibling_score": 0.7090235352516174, "answer_score": null, "sibling_qid": "KOL-2024-03-0818-Q001", "sibling_text": "deck fixed fire fighting system on lng ship how it propelled why nitrogen", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Deck fixed dry chemical powder (DCP) fire-extinguishing system", "cross_family": false }, { "answer_id": "IGC-GAS-012", "score": 0.6834263205528259, "sibling_score": 0.6834263205528259, "answer_score": null, "sibling_qid": "CHE-2025-12-0326-Q002", "sibling_text": "2 safeties in compressor room and motor room in lng ships what is fusible plug", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Compressor-room and motor-room safeties (including the fusible plug)", "cross_family": false }, { "answer_id": "IGC-GAS-010", "score": 0.6817806959152222, "sibling_score": 0.6817806959152222, "answer_score": null, "sibling_qid": "MUM-2023-07-2738-Q001", "sibling_text": "safety lng ship", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Cargo-handling deck safeties and precautions (loading and discharge)", "cross_family": false } ] }, { "qid": "CHE-2024-10-0009-Q005", "text": "As a second engineer conduct safety meeting for simultaneous bunker and psc inspection on arrival tomorrow", "family": "Risk & Safety Management", "subtopic": "Safety Meeting / Committee", "tid": "CHE-2024-10-0009", "tray": "review", "candidates": [ { "answer_id": "RISK-RA-D-003", "score": 0.6570481061935425, "sibling_score": 0.6570481061935425, "answer_score": null, "sibling_qid": "MUM-2026-04-0913-Q005", "sibling_text": "bunker tank entry as a second engineer how u plan he needs tk hear risk assessment and types of gases presnt types of gas detectors used limits", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "BUNK-PLAN-001", "score": 0.6331353783607483, "sibling_score": 0.6331353783607483, "answer_score": 0.5066039651632309, "sibling_qid": "KOL-2022-08-0671-Q002", "sibling_text": "during bunkering operation as 2nd engineer whall all checks he don t want to listen sounding temperature rate just want to listen leakage any pipeline scuppers and communication with bridge ecr manifold ccr acknowledge with ce", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Second Engineer's duties, preparation and checks for bunkering", "cross_family": true }, { "answer_id": "EMG-DG-P04-002", "score": 0.613847017288208, "sibling_score": 0.613847017288208, "answer_score": null, "sibling_qid": "KOL-2020-02-0387-Q002", "sibling_text": "emergency gen preparation for psc inspection as a 2nd engineer", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "PSC / surveyor demonstration during cargo, and required run durations", "cross_family": true } ] }, { "qid": "CHE-2024-10-0009-Q008", "text": "How to order overboard valve. (must mention class approval cert)", "family": "Surveys - Statutory", "subtopic": "IACS / Classification Society", "tid": "CHE-2024-10-0009", "tray": "new", "candidates": [ { "answer_id": "CERT-LIST-P02-001", "score": 0.6039014458656311, "sibling_score": 0.6039014458656311, "answer_score": null, "sibling_qid": "MUM-2026-09-3972-Q008", "sibling_text": "class certificates reqd on oil tankers", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "SOLAS certificates carried onboard", "cross_family": false }, { "answer_id": "CERT-LIST-P01-001", "score": 0.5843525528907776, "sibling_score": 0.5843525528907776, "answer_score": null, "sibling_qid": "KOL-2020-06-3340-Q004", "sibling_text": "which certificate will tell u about the class to which ship is classified", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "List the statutory certificates carried onboard a ship.", "cross_family": false }, { "answer_id": "CERT-LIST-P02-005", "score": 0.563839852809906, "sibling_score": 0.563839852809906, "answer_score": 0.43778170347213746, "sibling_qid": "MUM-2026-06-3395-Q001", "sibling_text": "why class certificate is there for ship", "sibling_family": "Surveys - 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Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "CHE-2025-05-0398", "tray": "review", "candidates": [ { "answer_id": "CYL-LINER-P03-008", "score": 0.7558754086494446, "sibling_score": 0.7558754086494446, "answer_score": 0.3991580680012703, "sibling_qid": "KOL-2017-03-3045-Q004", "sibling_text": "liner removal procedure", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Main-engine cylinder liner removal — full procedure, the lifting tool, and precautions", "cross_family": false }, { "answer_id": "CYL-LINER-P02-002", "score": 0.6579404473304749, "sibling_score": 0.6579404473304749, "answer_score": null, "sibling_qid": "MUM-2026-05-3238-Q009", "sibling_text": "liner seized how to remove", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L2 · T044-PART_02-G002High", "cross_family": false }, { "answer_id": "CYL-LINER-P03-003", "score": 0.6572591662406921, "sibling_score": 0.6572591662406921, "answer_score": 0.3872907221317291, "sibling_qid": "MUM-2026-07-3848-Q001", "sibling_text": "liner seized how to remove", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Removing a stuck cylinder liner — how, and where do you jack?", "cross_family": false } ] }, { "qid": "CHE-2025-05-0398-Q006", "text": "Liner is not coming, what will you do", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "CHE-2025-05-0398", "tray": "review", "candidates": [ { "answer_id": "CYL-LINER-P03-005", "score": 0.6635424494743347, "sibling_score": 0.6635424494743347, "answer_score": null, "sibling_qid": "MUM-2025-11-1212-Q010", "sibling_text": "if you dont have spare liner then what will you do", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Spare cylinder liner — what checks and certificates before you fit it?", "cross_family": false }, { "answer_id": "CYL-LINER-P03-002", "score": 0.6414713263511658, "sibling_score": 0.6414713263511658, "answer_score": null, "sibling_qid": "MUM-2025-06-0972-Q008", "sibling_text": "liner crack u dnt have spare liner wat u will do", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Detecting and confirming a cracked or leaking liner — and pinning the unit", "cross_family": false }, { "answer_id": "CYL-LINER-P04-002", "score": 0.5928186774253845, "sibling_score": 0.5928186774253845, "answer_score": null, "sibling_qid": "MUM-2026-09-3959-Q003", "sibling_text": "liner when you will replaced", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Judging, measuring, removing & discarding a cylinder liner", "cross_family": false } ] }, { "qid": "CHE-2025-05-0398-Q007", "text": "where to place the jack for stucked liner", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "CHE-2025-05-0398", "tray": "review", "candidates": [ { "answer_id": "CYL-LINER-P03-003", "score": 0.7076671719551086, "sibling_score": 0.7076671719551086, "answer_score": 0.4673957943916321, "sibling_qid": "MUM-2025-11-2487-Q003", "sibling_text": "liner stuck want to know how and where to jack", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Removing a stuck cylinder liner — how, and where do you jack?", "cross_family": false }, { "answer_id": "WBRT-002", "score": 0.5167832970619202, "sibling_score": 0.5167832970619202, "answer_score": null, "sibling_qid": "CHE-2023-11-0394-Q004", "sibling_text": "where will you put the jack", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Why 60%, and how the jack load and pressure are set", "cross_family": true }, { "answer_id": "CYL-LINER-P04-002", "score": 0.5109348297119141, "sibling_score": 0.5109348297119141, "answer_score": null, "sibling_qid": "MUM-2026-03-2952-Q026", "sibling_text": "if liner is stuck as a second engineer what methods u will use to remove the liner", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Judging, measuring, removing & discarding a cylinder liner", "cross_family": false } ] }, { "qid": "CHE-2025-05-0398-Q009", "text": "what is the wear ring in the engine & purpose", "family": "2-Stroke - Components (Other)", "subtopic": "Piston Rings", "tid": "CHE-2025-05-0398", "tray": "new", "candidates": [ { "answer_id": "PRING-B-001", "score": 0.6118042469024658, "sibling_score": 0.6118042469024658, "answer_score": null, "sibling_qid": "KOL-2018-01-3112-Q005", "sibling_text": "when u decide to discard piston ring", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston-ring inspection & discard criteria", "cross_family": false }, { "answer_id": "PRING-CLR-A-002", "score": 0.6027960181236267, "sibling_score": 0.6027960181236267, "answer_score": null, "sibling_qid": "CHE-2026-03-0490-Q006", "sibling_text": "ring width of piston ring importance func 4b ext t mohan int po", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston-ring clearances and calibration — butt, axial, radial, wear limits", "cross_family": false }, { "answer_id": "PRING-B-005", "score": 0.6002136468887329, "sibling_score": 0.6002136468887329, "answer_score": null, "sibling_qid": "MUM-2026-05-3151-Q009", "sibling_text": "main engine piston ring new development", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Running-in & latest developments", "cross_family": false } ] }, { "qid": "CHE-2025-05-0398-Q010", "text": "after replacing the new line how to start the engine.", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "CHE-2025-05-0398", "tray": "new", "candidates": [ { "answer_id": "SCAV-323-P01-005", "score": 0.48788172006607056, "sibling_score": 0.48788172006607056, "answer_score": null, "sibling_qid": "KOL-2018-03-1359-Q005", "sibling_text": "after scavenge fire you have to start engine as 2nd engr how u start engine 8 spoc nd power related question", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Post-fire checks before restarting and loading", "cross_family": true }, { "answer_id": "EICU-MAN-P02-004", "score": 0.48069095611572266, "sibling_score": 0.48069095611572266, "answer_score": null, "sibling_qid": "KOC-2024-04-2044-Q011", "sibling_text": "how you will start the engine after checking interlocks and pressure and all", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Main-engine manoeuvring interlocks and the running-direction interlock", "cross_family": true }, { "answer_id": "CYL-LINER-P03-006", "score": 0.4804611802101135, "sibling_score": 0.4804611802101135, "answer_score": null, "sibling_qid": "KOL-2017-04-1289-Q008", "sibling_text": "removing old liner procedure of main engine and checks br fitting new liner", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Fitting a new cylinder liner — checks and precautions during renewal and installation", "cross_family": false } ] }, { "qid": "CHE-2025-05-0398-Q011", "text": "what is running in", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "CHE-2025-05-0398", "tray": "new", "candidates": [ { "answer_id": "PRING-B-005", "score": 0.6295755505561829, "sibling_score": 0.6295755505561829, "answer_score": null, "sibling_qid": "MUM-2026-03-1004-Q007", "sibling_text": "running in", "sibling_family": "2-Stroke - 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Two paralleled generators sharing unequal load — cause and correction", "cross_family": true }, { "answer_id": "RSTA-563-001", "score": 0.4818194508552551, "sibling_score": 0.4818194508552551, "answer_score": null, "sibling_qid": "KOL-2019-07-3261-Q006", "sibling_text": "running of main engine step by step process", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What happens, step by step, when the start / air-run signal is given?", "cross_family": true } ] }, { "qid": "CHE-2025-05-0398-Q012", "text": "at what load you will do running in", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "CHE-2025-05-0398", "tray": "new", "candidates": [ { "answer_id": "EGTP-P02-008", "score": 0.5953353643417358, "sibling_score": 0.5953353643417358, "answer_score": null, "sibling_qid": "MUM-2023-08-1058-Q009", "sibling_text": "why not at and below 40 45 load", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "General Engine Theory — Operating Envelope", "cross_family": true }, { "answer_id": "AEDEC-291-005", "score": 0.569270133972168, "sibling_score": 0.569270133972168, "answer_score": null, "sibling_qid": "MUM-2025-09-2421-Q003", "sibling_text": "ae why gradual load xq how to know running in has been achieved", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "5. Running-in, gradual loading, confirming run-in", "cross_family": true }, { "answer_id": "BDC-P04-03", "score": 0.5675144195556641, "sibling_score": 0.5675144195556641, "answer_score": null, "sibling_qid": "KOC-2025-06-1539-Q008", "sibling_text": "how will you decide the load", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "Battery load test on board — preparation, deciding the load, and reading the result", "cross_family": true } ] }, { "qid": "CHE-2025-05-0398-Q014", "text": "what is the purpose of corrugations on line", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "CHE-2025-05-0398", "tray": "new", "candidates": [ { "answer_id": "CYL-LINER-P02-009", "score": 0.4712752103805542, "sibling_score": 0.4712752103805542, "answer_score": null, "sibling_qid": "MUM-2021-09-1010-Q007", "sibling_text": "what is ridging of liner", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L9 · T044-PART_02-G009High", "cross_family": false }, { "answer_id": "BHD-TYP-C-001", "score": 0.466508686542511, "sibling_score": 0.466508686542511, "answer_score": 0.38491729348897935, "sibling_qid": "MUM-2025-11-0554-Q004", "sibling_text": "advantage of corrugated bulkhead how buckling is resisted wanted to hear", "sibling_family": "", "via": "sibling", "answer_title": "Corrugated bulkhead — what it is, where used, why stronger than plain", "cross_family": false }, { "answer_id": "CYL-LINER-P02-004", "score": 0.4430074691772461, "sibling_score": 0.4430074691772461, "answer_score": null, "sibling_qid": "KOL-2021-12-1647-Q002", "sibling_text": "liner oval in fwd and aft direction reason", "sibling_family": "2-Stroke - 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LSA & Lifeboats", "via": "sibling", "answer_title": "Winch/davit brake test — static vs dynamic, holding capacity, slippage", "cross_family": false }, { "answer_id": "LBT-TEST-B-001", "score": 0.49572134017944336, "sibling_score": 0.49572134017944336, "answer_score": null, "sibling_qid": "KOC-2026-05-2131-Q006", "sibling_text": "tests in lifeboat davits explain dynamic test how much is the proof load how it is loaded", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat/davit load-test proof loads and test conditions", "cross_family": false }, { "answer_id": "LB-SDT-A-001", "score": 0.4952818751335144, "sibling_score": 0.4952818751335144, "answer_score": null, "sibling_qid": "KOC-2023-03-0168-Q009", "sibling_text": "tests on life boat n davit", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat static and dynamic test — purpose and procedure", "cross_family": false } ] }, { "qid": "CHE-2025-08-0019-Q001", "text": "Types of ships", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2025-08-0019", "tray": "review", "candidates": [ { "answer_id": "LLST-AB-001", "score": 0.8298361897468567, "sibling_score": 0.8298361897468567, "answer_score": 0.5296401530504227, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.7899500727653503, "sibling_score": 0.7899500727653503, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.7880486845970154, "sibling_score": 0.7880486845970154, "answer_score": 0.5374270498752594, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "CHE-2025-08-0019-Q003", "text": "ORB in details", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "CHE-2025-08-0019", "tray": "review", "candidates": [ { "answer_id": "ORB-IOPP-OWS-002", "score": 0.7620355486869812, "sibling_score": 0.7620355486869812, "answer_score": 0.22877472937107085, "sibling_qid": "CHE-2026-05-0543-Q003", "sibling_text": "orb in details", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "The Oil Record Book Part I — purpose, the letter codes, and how entries are made", "cross_family": false }, { "answer_id": "OWS-ORB-006", "score": 0.6160330176353455, "sibling_score": 0.6160330176353455, "answer_score": null, "sibling_qid": "MUM-2025-09-0447-Q007", "sibling_text": "orb entries", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "6. Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-004", "score": 0.46668192744255066, "sibling_score": 0.46668192744255066, "answer_score": null, "sibling_qid": "MUM-2026-08-3831-Q008", "sibling_text": "bunker entry in orb", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Weekly ORB entries — the mandatory sludge retention record, the bunker entry, and what is voluntary", "cross_family": false } ] }, { "qid": "CHE-2025-08-0019-Q013", "text": "CODE F in detail", "family": "", "subtopic": "", "tid": "CHE-2025-08-0019", "tray": "review", "candidates": [ { "answer_id": "FFA-CODE-001", "score": 0.7663360834121704, "sibling_score": 0.7663360834121704, "answer_score": 0.3464142635464668, "sibling_qid": "CHE-2026-05-0543-Q013", "sibling_text": "code f in detail", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Where are the fire-fighting-appliance requirements stated, and what does the “FFA Code” cover?", "cross_family": false }, { "answer_id": "FSS-CODE-002", "score": 0.6100689172744751, "sibling_score": 0.6100689172744751, "answer_score": null, "sibling_qid": "KOC-2025-07-0627-Q006", "sibling_text": "fss code contents", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "How many chapters does the FSS Code have and what are they? Name the important chapters.", "cross_family": false }, { "answer_id": "FSS-CODE-001", "score": 0.5951215624809265, "sibling_score": 0.5951215624809265, "answer_score": 0.3106247946619987, "sibling_qid": "KOC-2024-11-0456-Q002", "sibling_text": "fss code expain", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "What is the FSS Code, its status under SOLAS, and why is it a separate code rather than text inside Chapter II-2?", "cross_family": false } ] }, { "qid": "CHE-2025-08-0021-Q001", "text": "Type of ship sailed", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2025-08-0021", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8459994196891785, "sibling_score": 0.8459994196891785, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8450109362602234, "sibling_score": 0.8450109362602234, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7931061387062073, "sibling_score": 0.7931061387062073, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "CHE-2025-08-0021-Q002", "text": "What is MARPOL annex1 regulate? X qn", "family": "MARPOL - Annex I (Oil)", "subtopic": "IOPP", "tid": "CHE-2025-08-0021", "tray": "review", "candidates": [ { "answer_id": "AVI-SCOPE-004", "score": 0.6731618642807007, "sibling_score": 0.6731618642807007, "answer_score": null, "sibling_qid": "CHE-2025-08-0021-Q003", "sibling_text": "what is marpol annex 6 regulate x qn", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Explain MARPOL Annex VI: purpose, scope, chapters/regulations and main onboard requirements.", "cross_family": true }, { "answer_id": "ODC-004", "score": 0.6552248597145081, "sibling_score": 0.6552248597145081, "answer_score": null, "sibling_qid": "CHE-2026-03-0127-Q009", "sibling_text": "what marpol annex 1 regulation 14", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Regulation 14 — oil filtering equipment: 400 GT, 10,000 GT and what each must have", "cross_family": false }, { "answer_id": "MARPOL-OV-003", "score": 0.6238900423049927, "sibling_score": 0.6238900423049927, "answer_score": null, "sibling_qid": "MUM-2026-09-3916-Q003", "sibling_text": "marpol annexes all", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "General overview of MARPOL and all annexes", "cross_family": false } ] }, { "qid": "CHE-2025-08-0022-Q002", "text": "types of ship sailed", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2025-08-0022", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8293607831001282, "sibling_score": 0.8293607831001282, "answer_score": null, "sibling_qid": "CHE-2026-09-3938-Q001", "sibling_text": "types of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7972498536109924, "sibling_score": 0.7972498536109924, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7828014492988586, "sibling_score": 0.7828014492988586, "answer_score": null, "sibling_qid": "CHE-2026-03-0253-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "CHE-2025-08-0022-Q007", "text": "special area requirement annex 1", "family": "MARPOL - Annex I (Oil)", "subtopic": "Oil Discharge Criteria", "tid": "CHE-2025-08-0022", "tray": "review", "candidates": [ { "answer_id": "EEZ-PSSA-002", "score": 0.717483401298523, "sibling_score": 0.717483401298523, "answer_score": 0.40054035782814024, "sibling_qid": "CHE-2026-05-0544-Q006", "sibling_text": "special area requirement annex 1", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "MARPOL special area — definition, the annexes, the names, the Annex I rule", "cross_family": true }, { "answer_id": "ODC-007", "score": 0.6786788702011108, "sibling_score": 0.6786788702011108, "answer_score": 0.4583525836467743, "sibling_qid": "KOL-2025-03-0922-Q006", "sibling_text": "annex 1 discharge criteria what is special area how a special area is designated", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Special areas under Annex I — what they are, how one is designated, and which are in effect", "cross_family": false }, { "answer_id": "ODC-003", "score": 0.6033200621604919, "sibling_score": 0.6033200621604919, "answer_score": null, "sibling_qid": "KOL-2025-07-0994-Q003", "sibling_text": "in special area", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Machinery-space bilge discharge inside a special area — and the difference from outside", "cross_family": false } ] }, { "qid": "CHE-2025-08-0022-Q009", "text": "what’s use of isolationvv PO decide", "family": "Auxiliary Equipment", "subtopic": "Quick Closing Valve", "tid": "CHE-2025-08-0022", "tray": "new", "candidates": [ { "answer_id": "FFF-A-003", "score": 0.47909507155418396, "sibling_score": 0.47909507155418396, "answer_score": null, "sibling_qid": "MUM-2023-08-0118-Q005", "sibling_text": "purpose of isolating vv in fire line", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fire main, hydrants, isolating and deck valves, and fire-line fittings", "cross_family": true }, { "answer_id": "MR-DS-PV-B-006", "score": 0.4340120553970337, "sibling_score": 0.4340120553970337, "answer_score": 0.3081919625401497, "sibling_qid": "CHE-2026-05-0544-Q008", "sibling_text": "what s use of isolation valve", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "6. Deck isolating valve, deck relief/safety devices, and cargo-tank pressure", "cross_family": true }, { "answer_id": "MSB-ESB-C-001", "score": 0.42290544509887695, "sibling_score": 0.42290544509887695, "answer_score": null, "sibling_qid": "CHE-2026-02-0340-Q008", "sibling_text": "sequence of automatic isolation", "sibling_family": "", "via": "sibling", "answer_title": "MSB-ESB interconnection, tie breaker/interlock and emergency supply transfer", "cross_family": false } ] }, { "qid": "CHE-2025-08-0023-Q005", "text": "cargo Bulkhead was damaged, how to find the location and details", "family": "Surveys - Statutory", "subtopic": "Defects on Board / Class Action", "tid": "CHE-2025-08-0023", "tray": "review", "candidates": [ { "answer_id": "DUS-P4-04", "score": 0.7690513730049133, "sibling_score": 0.7690513730049133, "answer_score": 0.43637202978134154, "sibling_qid": "CHE-2026-05-0554-Q004", "sibling_text": "cargo bulkhead was damaged how to find the location and details", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Card 4 — Crack on a bulkhead: insert welding repair and location reporting", "cross_family": true }, { "answer_id": "BHD-TYP-C-002", "score": 0.592060923576355, "sibling_score": 0.592060923576355, "answer_score": null, "sibling_qid": "MUM-2023-06-2730-Q004", "sibling_text": "aft bulkhead of cargo hold no 1", "sibling_family": "", "via": "sibling", "answer_title": "Aft (after peak) bulkhead — what it is and where it sits", "cross_family": false }, { "answer_id": "BHD-TYPE-B-001", "score": 0.586111307144165, "sibling_score": 0.586111307144165, "answer_score": 0.4419289529323578, "sibling_qid": "MUM-2026-05-3086-Q003", "sibling_text": "location of aft collision bulkhead", "sibling_family": "", "via": "sibling", "answer_title": "Collision bulkhead — definition, location and SOLAS regulations", "cross_family": false } ] }, { "qid": "CHE-2025-08-0023-Q006", "text": "clear ground in psc 1 more question Po Type of ship", "family": "Surveys - Statutory", "subtopic": "Detention / Clear Ground", "tid": "CHE-2025-08-0023", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.6754275560379028, "sibling_score": 0.6754275560379028, "answer_score": null, "sibling_qid": "CHE-2026-04-0520-Q008", "sibling_text": "po deciding ques type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": true }, { "answer_id": "TKR-TYPE-002", "score": 0.5927545428276062, "sibling_score": 0.5927545428276062, "answer_score": null, "sibling_qid": "KOL-2025-12-1147-Q001", "sibling_text": "type of ship sailed i told chemical tanker clearance between side shell and bottom shell", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "2. Chemical tanker IMO Types 1 / 2 / 3, cargo categories and the IBC Code", "cross_family": true }, { "answer_id": "ESP-B-002", "score": 0.590206503868103, "sibling_score": 0.590206503868103, "answer_score": null, "sibling_qid": "KOL-2020-10-0428-Q005", "sibling_text": "esp which type of ships its applicable what they surveyed in esp rao 1 related to esp cross question like what is close up survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Close-up survey, thickness gauging, substantial corrosion & renewal criteria", "cross_family": false } ] }, { "qid": "CHE-2025-08-0024-Q002", "text": "Type of ships", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2025-08-0024", "tray": "review", "candidates": [ { "answer_id": "LLST-AB-001", "score": 0.8287715315818787, "sibling_score": 0.8287715315818787, "answer_score": 0.5266513854265212, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.7946953773498535, "sibling_score": 0.7946953773498535, "answer_score": 0.5292112320661545, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.7896557450294495, "sibling_score": 0.7896557450294495, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false } ] }, { "qid": "CHE-2025-08-0024-Q003", "text": "Freeport definition", "family": "", "subtopic": "", "tid": "CHE-2025-08-0024", "tray": "new", "candidates": [ { "answer_id": "BULWARK-003", "score": 0.546306848526001, "sibling_score": 0.546306848526001, "answer_score": 0.3675572916865349, "sibling_qid": "CHE-2025-08-0031-Q008", "sibling_text": "bulwark freeing port types", "sibling_family": "", "via": "sibling", "answer_title": "What are freeing ports in a bulwark, and what is their purpose?", "cross_family": false }, { "answer_id": "LLC-P05-001", "score": 0.47973787784576416, "sibling_score": 0.47973787784576416, "answer_score": 0.3376939594745636, "sibling_qid": "KOL-2022-08-0667-Q006", "sibling_text": "define freeboard deck", "sibling_family": "", "via": "sibling", "answer_title": "Freeboard, deck line, Plimsoll mark, assignment and scantling draft", "cross_family": false }, { "answer_id": "FIRE-P05-06", "score": 0.4647775888442993, "sibling_score": 0.4647775888442993, "answer_score": null, "sibling_qid": "KOL-2026-02-1185-Q001", "sibling_text": "requirement for safe reaching port in fss", "sibling_family": "SOLAS - 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Statutory", "subtopic": "Condition of Class", "tid": "CHE-2025-08-0031", "tray": "review", "candidates": [ { "answer_id": "COC-001", "score": 0.8520079255104065, "sibling_score": 0.8520079255104065, "answer_score": 0.3839012533426285, "sibling_qid": "KOC-2026-04-0899-Q005", "sibling_text": "condition of class", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is a Condition of Class? Give examples, say where it is found, how much time is given to rectify it, and what happens if it is not met in time.", "cross_family": false }, { "answer_id": "COC-002", "score": 0.8068071007728577, "sibling_score": 0.8068071007728577, "answer_score": 0.40575408339500424, "sibling_qid": "KOL-2016-12-0036-Q002", "sibling_text": "condition of class condition assessignment", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the difference between a Condition of Class and a Condition of Assignment?", "cross_family": false }, { "answer_id": "IACS-324-003", "score": 0.7033543586730957, "sibling_score": 0.7033543586730957, "answer_score": null, "sibling_qid": "KOC-2024-03-0321-Q011", "sibling_text": "how class can become ro explain conditions", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "3. What is a Recognized Organization, how is it recognized by a flag State, and how can a classification society become one?", "cross_family": false } ] }, { "qid": "CHE-2025-08-0031-Q007", "text": "P&I club, five main motto of that", "family": "", "subtopic": "", "tid": "CHE-2025-08-0031", "tray": "new", "candidates": [ { "answer_id": "CLC-CIV-B-004", "score": 0.5060951113700867, "sibling_score": 0.5060951113700867, "answer_score": 0.2556911677122116, "sibling_qid": "KOL-2018-09-0220-Q004", "sibling_text": "p i club functioning purpose what all things it covers", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Marine insurance and the P&I club: hull cover vs liability cover", "cross_family": false }, { "answer_id": "CLC-CIV-B-003", "score": 0.3981458246707916, "sibling_score": 0.3981458246707916, "answer_score": null, "sibling_qid": "KOL-2020-02-0392-Q002", "sibling_text": "llmc prescise 5 words", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "LLMC: purpose, scope and limitation of maritime claims", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.3898999094963074, "sibling_score": 0.3898999094963074, "answer_score": null, "sibling_qid": "MUM-2024-08-0200-Q005", "sibling_text": "5 objective of ism code", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false } ] }, { "qid": "CHE-2025-08-0032-Q001", "text": "Mlc title and explain how to train your junior and explain grievance", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "CHE-2025-08-0032", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-011", "score": 0.503483772277832, "sibling_score": 0.503483772277832, "answer_score": null, "sibling_qid": "CHE-2026-05-0637-Q002", "sibling_text": "mlc grievance system", "sibling_family": "MLC", "via": "sibling", "answer_title": "The on-board complaint and grievance procedure", "cross_family": false }, { "answer_id": "JOIN-HDVR-003", "score": 0.49117836356163025, "sibling_score": 0.49117836356163025, "answer_score": 0.3122561231255531, "sibling_qid": "MUM-2026-06-3490-Q008", "sibling_text": "how to train your junior engineer as a second engineer", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Familiarising and training a newly joined junior engineer as Second Engineer", "cross_family": true }, { "answer_id": "MLC-WRH-B-010", "score": 0.4599604606628418, "sibling_score": 0.4599604606628418, "answer_score": null, "sibling_qid": "MUM-2025-11-0573-Q004", "sibling_text": "how are wages set under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "SEA, the CBA parties, and how wages are set — action on non-payment", "cross_family": false } ] }, { "qid": "CHE-2025-08-0032-Q004", "text": "Type of life boat launching, davit checks", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Lifeboat Static / Dynamic Test", "tid": "CHE-2025-08-0032", "tray": "review", "candidates": [ { "answer_id": "LBT-TEST-B-005", "score": 0.7932536602020264, "sibling_score": 0.7932536602020264, "answer_score": null, "sibling_qid": "KOL-2026-04-3945-Q007", "sibling_text": "lifeboat davit checks", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Checks after the dynamic/overload load test", "cross_family": false }, { "answer_id": "LB-DAVIT-HRU-008", "score": 0.7416278123855591, "sibling_score": 0.7416278123855591, "answer_score": null, "sibling_qid": "KOC-2026-09-2189-Q006", "sibling_text": "davit launch life boat safeties", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat davit safety devices", "cross_family": false }, { "answer_id": "DRG-B-013", "score": 0.7410021424293518, "sibling_score": 0.7410021424293518, "answer_score": null, "sibling_qid": "MUM-2025-11-0560-Q004", "sibling_text": "life boat davit tests", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "The test and examination regime — and what PSC looks at", "cross_family": false } ] }, { "qid": "CHE-2025-08-0032-Q006", "text": "Risk assessment", "family": "ISM Code", "subtopic": "Risk Assessment", "tid": "CHE-2025-08-0032", "tray": "review", "candidates": [ { "answer_id": "ISM-AUD-P02-005", "score": 0.7894605994224548, "sibling_score": 0.7894605994224548, "answer_score": null, "sibling_qid": "MUM-2026-09-3885-Q011", "sibling_text": "risk assessment explain", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM and maintenance: PMS, risk assessment and critical spares", "cross_family": false }, { "answer_id": "RA-MGMT-B-001", "score": 0.7891297936439514, "sibling_score": 0.7891297936439514, "answer_score": null, "sibling_qid": "CHE-2026-02-0118-Q010", "sibling_text": "risk assessment", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "How is a shipboard risk assessment prepared and carried out?", "cross_family": false }, { "answer_id": "RA-MGMT-A-001", "score": 0.7443684935569763, "sibling_score": 0.7443684935569763, "answer_score": 0.566388589143753, "sibling_qid": "NOI-2026-09-0023-Q005", "sibling_text": "risk and risk assessment", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is risk, what is hazard, and what is risk assessment?", "cross_family": false } ] }, { "qid": "CHE-2025-08-0033-Q001", "text": "2 or 3 more questions forgot Deciding question: Hazardous permit explain 4b & 6 Venugopal Main Engine Specification complete Alpha lubricant. Signals Crankshaft deflection: delection gauge pressure (mm) when fitting between crank web Propeller fitting, why wet fit or dry fit Electronic expansion valve working and advantages Boiler accumulation test and boiler name plate specifications Why back pressure valve in refrigeration system, location Chain tightening and adjusting camshaft? Why?! 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Lubrication & Bearings", "via": "sibling", "answer_title": "How do you check, measure, limit and adjust main-engine thrust bearing clearance?", "cross_family": true } ] }, { "qid": "CHE-2025-08-0034-Q003", "text": "Immersion suit yearly checks as per solas", "family": "SOLAS - LSA & Lifeboats", "subtopic": "LSA Code", "tid": "CHE-2025-08-0034", "tray": "review", "candidates": [ { "answer_id": "LB-SURV-C-003", "score": 0.7069293260574341, "sibling_score": 0.7069293260574341, "answer_score": null, "sibling_qid": "CHE-2026-02-0103-Q002", "sibling_text": "immersion suit monthly 6 month and annual maintenance", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Routine maintenance ladder — weekly / monthly / quarterly / 6-monthly onboard checks", "cross_family": false }, { "answer_id": "LB-SURV-C-001", "score": 0.6508591771125793, "sibling_score": 0.6508591771125793, "answer_score": null, "sibling_qid": "KOL-2018-11-0229-Q004", "sibling_text": "yearly survey for life boat", "sibling_family": "SOLAS - 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LSA & Lifeboats", "via": "sibling", "answer_title": "Winch/davit brake test — static vs dynamic, holding capacity, slippage", "cross_family": false }, { "answer_id": "LBT-TEST-B-001", "score": 0.5280126929283142, "sibling_score": 0.5280126929283142, "answer_score": null, "sibling_qid": "KOC-2026-05-2131-Q006", "sibling_text": "tests in lifeboat davits explain dynamic test how much is the proof load how it is loaded", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat/davit load-test proof loads and test conditions", "cross_family": false }, { "answer_id": "LBT-TEST-B-004", "score": 0.5229892134666443, "sibling_score": 0.5229892134666443, "answer_score": null, "sibling_qid": "KOC-2024-02-0305-Q009", "sibling_text": "int what are the tests done on life boat davits", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Tests carried out on the lifeboat/davit onboard (overview)", "cross_family": false } ] }, { "qid": "CHE-2025-08-0035-Q001", "text": "What type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2025-08-0035", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8160261511802673, "sibling_score": 0.8160261511802673, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.7898743152618408, "sibling_score": 0.7898743152618408, "answer_score": 0.5094839066267013, "sibling_qid": "MUM-2026-02-0731-Q002", "sibling_text": "what type of ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7811399102210999, "sibling_score": 0.7811399102210999, "answer_score": 0.5342586278915405, "sibling_qid": "KOC-2026-09-2198-Q001", "sibling_text": "type a and b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "CHE-2025-08-0035-Q003", "text": "explain procedure about changing cargo from propane to ammonia", "family": "Cargo Ops - Gas Carriers", "subtopic": "Tank Cooldown", "tid": "CHE-2025-08-0035", "tray": "review", "candidates": [ { "answer_id": "LPG-LNG-007", "score": 0.8526732921600342, "sibling_score": 0.8526732921600342, "answer_score": 0.6034111171960831, "sibling_qid": "CHE-2026-05-0606-Q003", "sibling_text": "explain procedure about changing cargo from propane to ammonia", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Grade-change procedure, including LPG to ammonia", "cross_family": false }, { "answer_id": "LPG-LNG-002", "score": 0.564155638217926, "sibling_score": 0.564155638217926, "answer_score": null, "sibling_qid": "MUM-2026-01-0682-Q002", "sibling_text": "procedure for bunkering lng as a fuel", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "LNG bunkering – preparation and procedure", "cross_family": false }, { "answer_id": "LPG-LNG-004", "score": 0.5454365611076355, "sibling_score": 0.5454365611076355, "answer_score": 0.4224638134241104, "sibling_qid": "KOL-2019-09-3272-Q001", "sibling_text": "lpg tanker loading and discharging preparations", "sibling_family": "Cargo Ops - 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Tankers", "via": "sibling", "answer_title": "Chemical cargo categories — MARPOL Annex II and IBC Chapters 17 & 18", "cross_family": true } ] }, { "qid": "CHE-2025-08-0043-Q001", "text": "What type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2025-08-0043", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8160261511802673, "sibling_score": 0.8160261511802673, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.7898743152618408, "sibling_score": 0.7898743152618408, "answer_score": 0.5094839066267013, "sibling_qid": "MUM-2026-02-0731-Q002", "sibling_text": "what type of ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7811397910118103, "sibling_score": 0.7811397910118103, "answer_score": 0.5342586278915405, "sibling_qid": "KOC-2026-09-2198-Q001", "sibling_text": "type a and b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "CHE-2025-08-0045-Q003", "text": "Lagging temperature regulation.", "family": "", "subtopic": "", "tid": "CHE-2025-08-0045", "tray": "new", "candidates": [ { "answer_id": "HEAT-TRT-C-003", "score": 0.5809360146522522, "sibling_score": 0.5809360146522522, "answer_score": null, "sibling_qid": "MUM-2026-03-2642-Q017", "sibling_text": "why slow cooling", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Critical temperature, quenching, slow cooling and spheroidisation", "cross_family": false }, { "answer_id": "RAC-MAT-320-002", "score": 0.5466488003730774, "sibling_score": 0.5466488003730774, "answer_score": null, "sibling_qid": "MUM-2026-02-2581-Q005", "sibling_text": "accomodation ac temp not developing", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "2. 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Tanker cargo-type classification, examples, and sweet vs sour crude", "cross_family": true } ] }, { "qid": "CHE-2025-08-0046-Q006", "text": "Compressor room safeties types of ventilation used", "family": "Cargo Ops - Gas Carriers", "subtopic": "Cargo Compressor", "tid": "CHE-2025-08-0046", "tray": "review", "candidates": [ { "answer_id": "IGC-GAS-013", "score": 0.6769500374794006, "sibling_score": 0.6769500374794006, "answer_score": 0.5206708610057831, "sibling_qid": "KOL-2023-10-0776-Q008", "sibling_text": "safety of compressor and motor room motor room high pressure than compressor room", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Cargo machinery air-lock, gas-tight separation and over-pressure protection", "cross_family": false }, { "answer_id": "REEF-COMP-001", "score": 0.6524369716644287, "sibling_score": 0.6524369716644287, "answer_score": null, "sibling_qid": "MUM-2026-07-3671-Q008", "sibling_text": "safeties on compressor", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Reefer/AC compressor safeties and cut-outs — safety valve, HP and LP cut-outs", "cross_family": false }, { "answer_id": "BAT-CHG-002", "score": 0.6451224684715271, "sibling_score": 0.6451224684715271, "answer_score": null, "sibling_qid": "KOL-2016-08-2067-Q005", "sibling_text": "ventilation type in battery room where suction is thr", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "Battery room inspection, and checks in the charged versus discharged condition", "cross_family": true } ] }, { "qid": "CHE-2025-08-0046-Q009", "text": "Difference between control air and instrument air", "family": "", "subtopic": "", "tid": "CHE-2025-08-0046", "tray": "new", "candidates": [ { "answer_id": "SAV-005", "score": 0.5650953650474548, "sibling_score": 0.5650953650474548, "answer_score": 0.4064079523086548, "sibling_qid": "KOL-2018-03-1358-Q002", "sibling_text": "starting air line full description control air pressure and main pressure", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "How air is admitted, and faults that stop starting air admission", "cross_family": false }, { "answer_id": "MAC-598-002", "score": 0.5340665578842163, "sibling_score": 0.5340665578842163, "answer_score": null, "sibling_qid": "MUM-2026-01-1867-Q002", "sibling_text": "main air comp ckt which are the 2 ckt here power ckt and control ckt", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "The main air compressor circuit — power and control circuits, starting, and electrical safeties in the compressor room", "cross_family": false }, { "answer_id": "AIR-DIST-002", "score": 0.5212854146957397, "sibling_score": 0.5212854146957397, "answer_score": null, "sibling_qid": "KOL-2017-01-1840-Q001", "sibling_text": "what is the route of the control air in the air starting system of the main engine", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Control-air route and starting sequence through the air distributor", "cross_family": false } ] }, { "qid": "CHE-2025-08-0049-Q001", "text": "Condition of class", "family": "Surveys - Statutory", "subtopic": "Condition of Class", "tid": "CHE-2025-08-0049", "tray": "review", "candidates": [ { "answer_id": "COC-001", "score": 0.8520079255104065, "sibling_score": 0.8520079255104065, "answer_score": 0.3839012533426285, "sibling_qid": "KOC-2026-04-0899-Q005", "sibling_text": "condition of class", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is a Condition of Class? Give examples, say where it is found, how much time is given to rectify it, and what happens if it is not met in time.", "cross_family": false }, { "answer_id": "COC-002", "score": 0.8068071007728577, "sibling_score": 0.8068071007728577, "answer_score": 0.40575408339500424, "sibling_qid": "KOL-2016-12-0036-Q002", "sibling_text": "condition of class condition assessignment", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the difference between a Condition of Class and a Condition of Assignment?", "cross_family": false }, { "answer_id": "IACS-324-003", "score": 0.7033542990684509, "sibling_score": 0.7033542990684509, "answer_score": null, "sibling_qid": "KOC-2024-03-0321-Q011", "sibling_text": "how class can become ro explain conditions", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "3. What is a Recognized Organization, how is it recognized by a flag State, and how can a classification society become one?", "cross_family": false } ] }, { "qid": "CHE-2025-08-0050-Q003", "text": "double hull regulation", "family": "MARPOL - Annex I (Oil)", "subtopic": "Double Hull / Segregated Ballast", "tid": "CHE-2025-08-0050", "tray": "review", "candidates": [ { "answer_id": "DB-TORBOX-B-002", "score": 0.6611373424530029, "sibling_score": 0.6611373424530029, "answer_score": 0.461712110042572, "sibling_qid": "CHE-2025-08-0019-Q017", "sibling_text": "double bottom and double hull requirements", "sibling_family": "", "via": "sibling", "answer_title": "Double-bottom tanks — safeties, requirements and regulations", "cross_family": false }, { "answer_id": "COT-08", "score": 0.6602159738540649, "sibling_score": 0.6602159738540649, "answer_score": 0.48416363596916195, "sibling_qid": "CHE-2026-05-0543-Q017", "sibling_text": "double bottom and double hull requirements", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Single-hull versus double-hull tanker requirements", "cross_family": true }, { "answer_id": "DBTB-A-001", "score": 0.5972092151641846, "sibling_score": 0.5972092151641846, "answer_score": null, "sibling_qid": "CHE-2026-02-0110-Q004", "sibling_text": "difference b w double hull and double bottom", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Double-bottom construction and the structural members fitted", "cross_family": true } ] }, { "qid": "CHE-2025-08-0051-Q004", "text": "Transom space.", "family": "Ship Construction & Stability", "subtopic": "Stern Frame / Transom", "tid": "CHE-2025-08-0051", "tray": "review", "candidates": [ { "answer_id": "DUS-P5-03", "score": 0.7606235146522522, "sibling_score": 0.7606235146522522, "answer_score": null, "sibling_qid": "NOI-2026-09-0006-Q003", "sibling_text": "transom space", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Stern frame construction, cross-section and rudder-axis sketch", "cross_family": false }, { "answer_id": "PPS-230-004", "score": 0.5984171628952026, "sibling_score": 0.5984171628952026, "answer_score": null, "sibling_qid": "NOI-2026-09-0006-Q004", "sibling_text": "panting pounding arrangements in transom space", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Forward strengthening to resist pounding / slamming", "cross_family": false }, { "answer_id": "BHD-TYP-C-004", "score": 0.5133535265922546, "sibling_score": 0.5133535265922546, "answer_score": null, "sibling_qid": "KOC-2025-12-0741-Q004", "sibling_text": "what is wash bulkhead in transverse direction", "sibling_family": "", "via": "sibling", "answer_title": "Wash (swash) bulkhead — purpose and how it works", "cross_family": false } ] }, { "qid": "CHE-2025-08-0052-Q007", "text": "Arrangements for crew in high risk area transit.", "family": "ISPS", "subtopic": "SSP / SSAS / SSO / CSO", "tid": "CHE-2025-08-0052", "tray": "new", "candidates": [ { "answer_id": "IMDG-007", "score": 0.42655226588249207, "sibling_score": 0.42655226588249207, "answer_score": null, "sibling_qid": "KOC-2024-10-0439-Q017", "sibling_text": "dangerous cargo how stowed conditions to be satisfied for stowing it near accomodation", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "How is dangerous cargo stowed on a container ship? Location, where stated, near accommodation, and can every container carry it?", "cross_family": true }, { "answer_id": "TNK-SAFE-BF26-003", "score": 0.42387503385543823, "sibling_score": 0.42387503385543823, "answer_score": null, "sibling_qid": "MUM-2026-09-3984-Q005", "sibling_text": "cargo safeties on deck", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What safeties, including electrical safeties and Ex ratings, are provided on the deck of a tanker?", "cross_family": true }, { "answer_id": "CPFE-583-015", "score": 0.423783540725708, "sibling_score": 0.423783540725708, "answer_score": null, "sibling_qid": "KOC-2023-12-1823-Q001", "sibling_text": "emergency cargo pumping arrangements if framo fails", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Emergency cargo pumping when a pump fails or is damaged", "cross_family": true } ] }, { "qid": "CHE-2025-08-0054-Q001", "text": "Type of ship sailed", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2025-08-0054", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8459994196891785, "sibling_score": 0.8459994196891785, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8450109958648682, "sibling_score": 0.8450109958648682, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.793106198310852, "sibling_score": 0.793106198310852, "answer_score": null, "sibling_qid": "CHE-2026-03-0253-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "CHE-2025-08-0055-Q003", "text": "Solas reg for putting insulation lagging on hot surface..he is asking temp", "family": "", "subtopic": "", "tid": "CHE-2025-08-0055", "tray": "new", "candidates": [ { "answer_id": "INS-CLASS-002", "score": 0.6272060871124268, "sibling_score": 0.6272060871124268, "answer_score": 0.45259999632835385, "sibling_qid": "MUM-2026-09-3873-Q009", "sibling_text": "insulation class with working temp and hotspot temp", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What are the classes of insulation, their temperature limits and their materials?", "cross_family": false }, { "answer_id": "CABLE-INSUL-D-001", "score": 0.5706144571304321, "sibling_score": 0.5706144571304321, "answer_score": null, "sibling_qid": "KOL-2025-11-2905-Q004", "sibling_text": "insulation classes and their temperatures", "sibling_family": "", "via": "sibling", "answer_title": "Insulation: materials, classes and required properties", "cross_family": false }, { "answer_id": "EF-DET-P01-003", "score": 0.5444371700286865, "sibling_score": 0.5444371700286865, "answer_score": null, "sibling_qid": "MUM-2022-07-1335-Q003", "sibling_text": "440low insulation how you proceed", "sibling_family": "", "via": "sibling", "answer_title": "Tracing and locating an earth fault or low-insulation fault on a 440V / 220V / deck circuit", "cross_family": false } ] }, { "qid": "CHE-2025-08-0057-Q008", "text": "Contents of MLC ?", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "CHE-2025-08-0057", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-006", "score": 0.5095662474632263, "sibling_score": 0.5095662474632263, "answer_score": 0.27039840519428254, "sibling_qid": "MUM-2026-06-3645-Q001", "sibling_text": "certificates of mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false }, { "answer_id": "MLC-WRH-B-001", "score": 0.5090683698654175, "sibling_score": 0.5090683698654175, "answer_score": 0.351513209939003, "sibling_qid": "KOC-2026-05-2135-Q011", "sibling_text": "mlc titles explain title 1 explain dmlc part 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "MLC-WRH-B-007", "score": 0.49536579847335815, "sibling_score": 0.49536579847335815, "answer_score": 0.2812563732266426, "sibling_qid": "MUM-2024-09-2771-Q003", "sibling_text": "mlc and detainable deficiencies", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false } ] }, { "qid": "CHE-2025-08-0058-Q002", "text": "How many items in MLC tell all 5", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "CHE-2025-08-0058", "tray": "new", "candidates": [ { "answer_id": "ICCP-119-P01-003", "score": 0.392991840839386, "sibling_score": 0.392991840839386, "answer_score": null, "sibling_qid": "KOC-2023-10-1287-Q005", "sibling_text": "5 iccp what all unit values u arr noting", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP values, impressed-current meaning, anode/cathode roles and materials", "cross_family": true }, { "answer_id": "FLAG-ST-007", "score": 0.3909316062927246, "sibling_score": 0.3909316062927246, "answer_score": null, "sibling_qid": "MUM-2024-10-0211-Q011", "sibling_text": "10 how flag state ensure mlc is complying", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Flag State enforcement of MLC compliance", "cross_family": true }, { "answer_id": "MLC-WRH-B-007", "score": 0.38482388854026794, "sibling_score": 0.38482388854026794, "answer_score": 0.2593722581863403, "sibling_qid": "MUM-2026-02-1260-Q001", "sibling_text": "1 detainable deficiency as per mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false } ] }, { "qid": "CHE-2025-08-0058-Q003", "text": "What are all elements in ISM", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "CHE-2025-08-0058", "tray": "review", "candidates": [ { "answer_id": "ISM-ELEM-003", "score": 0.6989171504974365, "sibling_score": 0.6989171504974365, "answer_score": 0.44376450777053833, "sibling_qid": "KOC-2026-02-0817-Q006", "sibling_text": "ism elements", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": false }, { "answer_id": "ISM-ELEM-002", "score": 0.6122486591339111, "sibling_score": 0.6122486591339111, "answer_score": null, "sibling_qid": "KOC-2026-02-0832-Q008", "sibling_text": "ism code explain all elements", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the ISM Code?", "cross_family": false }, { "answer_id": "ISPS-OV-001", "score": 0.5829774737358093, "sibling_score": 0.5829774737358093, "answer_score": null, "sibling_qid": "KOL-2024-11-0890-Q006", "sibling_text": "isps elements", "sibling_family": "ISPS", "via": "sibling", "answer_title": "ISPS Code: what it is, structure and key elements", "cross_family": true } ] }, { "qid": "CHE-2025-08-0058-Q005", "text": "Rudder construction ist hallow or solid", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "CHE-2025-08-0058", "tray": "new", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.5744333863258362, "sibling_score": 0.5744333863258362, "answer_score": null, "sibling_qid": "KOL-2026-05-4096-Q002", "sibling_text": "rudder construction welding painting pressure test", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "TRS-002", "score": 0.5564479827880859, "sibling_score": 0.5564479827880859, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "HULL-PAINT-002", "score": 0.5514761805534363, "sibling_score": 0.5514761805534363, "answer_score": null, "sibling_qid": "CHE-2026-02-0110-Q012", "sibling_text": "rudder internal painting", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Types of hull coating, the paint scheme by section, and why each is used", "cross_family": false } ] }, { "qid": "CHE-2025-08-0174-Q002", "text": "Types of ship and engine", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "CHE-2025-08-0174", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8174225687980652, "sibling_score": 0.8174225687980652, "answer_score": null, "sibling_qid": "MUM-2025-08-2357-Q001", "sibling_text": "type of ship type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.7893266677856445, "sibling_score": 0.7893266677856445, "answer_score": null, "sibling_qid": "MUM-2026-07-3668-Q004", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7474688291549683, "sibling_score": 0.7474688291549683, "answer_score": null, "sibling_qid": "KOL-2025-12-2031-Q002", "sibling_text": "type of ship and engine sailed engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "CHE-2025-08-0174-Q006", "text": "Criteria of saturated steam", "family": "Boilers - Operations & Firing", "subtopic": "Boiler Pressure / Steam", "tid": "CHE-2025-08-0174", "tray": "review", "candidates": [ { "answer_id": "SH-332-003", "score": 0.6507967710494995, "sibling_score": 0.6507967710494995, "answer_score": 0.5597732961177826, "sibling_qid": "CHE-2026-02-0333-Q016", "sibling_text": "what is saturated steam it is wet or dry steam and what is superheated steam", "sibling_family": "Boilers - Steam Fundamentals", "via": "sibling", "answer_title": "Superheated steam, degree of superheat, and saturated vs superheated", "cross_family": true }, { "answer_id": "BLR-OPS-001", "score": 0.6037861108779907, "sibling_score": 0.6037861108779907, "answer_score": null, "sibling_qid": "KOL-2022-11-3583-Q002", "sibling_text": "boiler steam rising in cold condition", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Explain the procedure for raising steam in an auxiliary boiler from cold.", "cross_family": false }, { "answer_id": "REF-CYC-009", "score": 0.5753781795501709, "sibling_score": 0.5753781795501709, "answer_score": null, "sibling_qid": "KOC-2022-08-0973-Q001", "sibling_text": "saturated pressure", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "The refrigeration cycle on the P-H diagram — saturation curve, saturated vapour pressure, subcooling", "cross_family": true } ] }, { "qid": "CHE-2025-08-0175-Q006", "text": "Airconditioning system load variation? How?", "family": "Refrigeration & AC", "subtopic": "AC Capacity", "tid": "CHE-2025-08-0175", "tray": "new", "candidates": [ { "answer_id": "CAP-CTRL-001", "score": 0.5765541791915894, "sibling_score": 0.5765541791915894, "answer_score": 0.47873539924621583, "sibling_qid": "MUM-2022-10-2713-Q011", "sibling_text": "capacity control in ac how it s working", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "CG-001 · Capacity control in an AC / refrigeration compressor — why and how", "cross_family": false }, { "answer_id": "TON-REF-001", "score": 0.5434716939926147, "sibling_score": 0.5434716939926147, "answer_score": null, "sibling_qid": "MUM-2026-04-2675-Q006S4", "sibling_text": "one ton of refrigeration capacity control in ac", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "What is 1 ton of refrigeration, and what is its equivalent cooling capacity?", "cross_family": false }, { "answer_id": "CCSC-314-002", "score": 0.5390551686286926, "sibling_score": 0.5390551686286926, "answer_score": 0.52127366065979, "sibling_qid": "MUM-2026-07-3817-Q012", "sibling_text": "ac capacity control", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Compressor capacity control and the capacity controller", "cross_family": false } ] }, { "qid": "CHE-2025-08-0186-Q003", "text": "Advancements in X head bearing?How it is improving compare to older design?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Crosshead Bearing", "tid": "CHE-2025-08-0186", "tray": "new", "candidates": [ { "answer_id": "CXH-BRG-FINAL-1-008", "score": 0.6112896800041199, "sibling_score": 0.6112896800041199, "answer_score": 0.45677060186862944, "sibling_qid": "MUM-2025-08-1161-Q004", "sibling_text": "crosshead bearing modern design", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead bearing construction & modern developments", "cross_family": false }, { "answer_id": "XHD-BRG-B-008", "score": 0.5851688385009766, "sibling_score": 0.5851688385009766, "answer_score": 0.46115723848342893, "sibling_qid": "CHE-2026-09-3912-Q004", "sibling_text": "latest advancements in crosshead bearing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead bearing construction, design refinements and developments", "cross_family": false }, { "answer_id": "XHD-BRG-C-005", "score": 0.5560784935951233, "sibling_score": 0.5560784935951233, "answer_score": 0.3920440897345543, "sibling_qid": "CHE-2026-05-0609-Q012", "sibling_text": "cross head advantage tri metal bearing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "E. Crosshead bearing design specialities: load max/min position, large pin, oil grooves, why no separate pump", "cross_family": false } ] }, { "qid": "CHE-2025-08-0187-Q002", "text": "Type of engine,spec explain.", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "CHE-2025-08-0187", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.6547051072120667, "sibling_score": 0.6547051072120667, "answer_score": null, "sibling_qid": "KOL-2026-03-2048-Q001", "sibling_text": "type of engine done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.6531476378440857, "sibling_score": 0.6531476378440857, "answer_score": 0.38015353977680205, "sibling_qid": "MUM-2026-07-3719-Q006", "sibling_text": "type of engine and it s specification", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false }, { "answer_id": "ENG-NOM-006", "score": 0.6440597176551819, "sibling_score": 0.6440597176551819, "answer_score": null, "sibling_qid": "CHE-2026-03-0181-Q001", "sibling_text": "engine specification", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Short-form asks: SMC-C, LMC, and ME vs MC quickly", "cross_family": false } ] }, { "qid": "CHE-2025-08-0187-Q009", "text": "Type of coupling", "family": "General Marine Engineering", "subtopic": "Shafting / Propeller / CPP", "tid": "CHE-2025-08-0187", "tray": "review", "candidates": [ { "answer_id": "SHAFT-CPP-008", "score": 0.8186284303665161, "sibling_score": 0.8186284303665161, "answer_score": 0.4404213458299637, "sibling_qid": "CHE-2026-05-0529-Q008", "sibling_text": "type of coupling", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "8. Shaft-line couplings, transmission & feathering", "cross_family": false }, { "answer_id": "RGEAR-002", "score": 0.6804775595664978, "sibling_score": 0.6804775595664978, "answer_score": 0.4285777360200882, "sibling_qid": "KOL-2016-08-2068-Q015", "sibling_text": "flexible coupling types use", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Flexible coupling — types, working, and where it is used in the engine room", "cross_family": false }, { "answer_id": "SHAFT-ALN-003", "score": 0.6492159366607666, "sibling_score": 0.6492159366607666, "answer_score": null, "sibling_qid": "MUM-2024-07-1084-Q013", "sibling_text": "coupling alignment", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Coupling alignment, shaft trueness and matching points", "cross_family": true } ] }, { "qid": "CHE-2025-08-0188-Q001", "text": "Date:13-05-25. Internal : SS murthy. EXTernal: venugopal function 4b and 6. Function 4b. 1.Main engine specifications and explained. 2.How we can able to see BHP of engine in ECR and explain. 3.function of hunting gear in steering gear. 4. Cylinder liner readings are taken. How are readings are interpretation and what are the contents are there in cylinder overhauled report. 5. What is the purpose of disc stack in purifier. 6. How bearings are load tested. 7. How main bearings are getting lubricated.he expect How lube oil enter into bearing region (exact location of entry and exit point) 8. Bearings materials and properties. Function 6. 1. Chain tightening procedure and explain. 2 .dry push and wet push. 3. Reefer oil charging methods. 4. Rudder clearance some more questions I forgot almost 50 minutes orals", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "CHE-2025-08-0188", "tray": "review", "candidates": [ { "answer_id": "XHD-BRG-B-001", "score": 0.7443140149116516, "sibling_score": 0.7443140149116516, "answer_score": null, "sibling_qid": "KOL-2022-11-3581-Q001", "sibling_text": "crosshead bearing have to overhaul and show to surveyor standing near crankcase door want to know the position of chain block position and checks in bearing pintle bearing clearance function name and materials of parts bracing of engine why we need them checks placing of top bracing in both mechanical and hydraulic where it is attached on ship and where on engine type of steering gear on ship zhow many vanes sealing arrangements why 3 blade why not 2 what if 2 then angle what is 100 redundancy why 35 to 30 why not 35 to 35 in 28 sec leaking plate type heat exchanger how to find which plate then specified about lubeoil cooler buy sea water is leaking srinivasan sir", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Preparing the crosshead bottom-end bearing and presenting it to the surveyor", "cross_family": true }, { "answer_id": "THR-BRG-A-001", "score": 0.7309372425079346, "sibling_score": 0.7309372425079346, "answer_score": 0.5557317316532134, "sibling_qid": "KOL-2018-08-3179-Q005", "sibling_text": "thrust bearing clearance checking procedure shanmukh asapu paul and rao 4 6 how fuel is burnt crank shaft deflection why purifier gear case emulsification how critical rpm me governor and ae governor", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you check, measure, limit and adjust main-engine thrust bearing clearance?", "cross_family": true }, { "answer_id": "BEB-B-002", "score": 0.7129607200622559, "sibling_score": 0.7129607200622559, "answer_score": null, "sibling_qid": "CHE-2025-08-0413-Q003", "sibling_text": "main engine all bearing clearnce value how will you take bottom end bearing clearance 4 stuffing box rings check lot of cross question p o alfa laval purifier why its more efficiency than conventional type super vit what is break point liner measurement without templates how will you check where will you get maximum wear", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bottom End Bearing — Clearance Measurement", "cross_family": true } ] }, { "qid": "CHE-2025-08-0189-Q001", "text": "Which ships you have worked on ? Which engines ?", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "CHE-2025-08-0189", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P01-001", "score": 0.7363891005516052, "sibling_score": 0.7363891005516052, "answer_score": null, "sibling_qid": "CHE-2026-05-0558-Q001", "sibling_text": "fun 4b which ships you have worked on which engines", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ETP-344-P03-001", "score": 0.6835713386535645, "sibling_score": 0.6835713386535645, "answer_score": null, "sibling_qid": "KOL-2026-05-4244-Q002", "sibling_text": "engines you have worked on", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.6411948204040527, "sibling_score": 0.6411948204040527, "answer_score": null, "sibling_qid": "CHE-2026-03-0253-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "CHE-2025-08-0189-Q007", "text": "What is FQS ? X questions", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Effective Stroke", "tid": "CHE-2025-08-0189", "tray": "new", "candidates": [ { "answer_id": "VIT-MECH-B-002", "score": 0.5240486264228821, "sibling_score": 0.5240486264228821, "answer_score": null, "sibling_qid": "CHE-2026-03-0254-Q002", "sibling_text": "vit explain fqs settings", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How VIT is adjusted and set — timing and fuel-quality (FQS) interactions", "cross_family": false }, { "answer_id": "FIVA-220-003", "score": 0.5154735445976257, "sibling_score": 0.5154735445976257, "answer_score": null, "sibling_qid": "MUM-2026-05-3217-Q015", "sibling_text": "many cross question on fiva", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "FIVA control signal, controller type, voice-coil drive and fail-safe behaviour", "cross_family": false }, { "answer_id": "QCV-001", "score": 0.49006813764572144, "sibling_score": 0.49006813764572144, "answer_score": null, "sibling_qid": "KOL-2022-09-3567-Q006", "sibling_text": "fqs system", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Quick closing valve — construction and what it is", "cross_family": true } ] }, { "qid": "CHE-2025-08-0190-Q001", "text": "specifications of engine.", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "CHE-2025-08-0190", "tray": "review", "candidates": [ { "answer_id": "ENG-NOM-006", "score": 0.789035439491272, "sibling_score": 0.789035439491272, "answer_score": null, "sibling_qid": "CHE-2026-03-0181-Q001", "sibling_text": "engine specification", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Short-form asks: SMC-C, LMC, and ME vs MC quickly", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7225214838981628, "sibling_score": 0.7225214838981628, "answer_score": null, "sibling_qid": "MUM-2026-07-3719-Q006", "sibling_text": "type of engine and it s specification", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false }, { "answer_id": "ETP-344-P03-003", "score": 0.48913898766040803, "sibling_score": null, "answer_score": 0.48913898766040803, "sibling_qid": "", "sibling_text": "engine nomenclature layout mark number and engine constant designation order man b w cylinders stroke bore letter k l s g bore in cm m programme concept e electronic c camshaft design c compact b camshaft controlled exhaust hybrid mark number gi if gas injection tier rating stroke bore letters k short l long s super long g ultra long green the ratios are approximate design values not exact", "sibling_family": "", "via": "answer_title", "answer_title": "Engine nomenclature, layout, mark number and engine constant", "cross_family": false } ] }, { "qid": "CHE-2025-08-0191-Q001", "text": "specifications of engine.", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "CHE-2025-08-0191", "tray": "review", "candidates": [ { "answer_id": "ENG-NOM-006", "score": 0.789035439491272, "sibling_score": 0.789035439491272, "answer_score": null, "sibling_qid": "CHE-2026-03-0181-Q001", "sibling_text": "engine specification", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Short-form asks: SMC-C, LMC, and ME vs MC quickly", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7225214838981628, "sibling_score": 0.7225214838981628, "answer_score": null, "sibling_qid": "MUM-2026-07-3719-Q006", "sibling_text": "type of engine and it s specification", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false }, { "answer_id": "ETP-344-P03-003", "score": 0.48913898766040803, "sibling_score": null, "answer_score": 0.48913898766040803, "sibling_qid": "", "sibling_text": "engine nomenclature layout mark number and engine constant designation order man b w cylinders stroke bore letter k l s g bore in cm m programme concept e electronic c camshaft design c compact b camshaft controlled exhaust hybrid mark number gi if gas injection tier rating stroke bore letters k short l long s super long g ultra long green the ratios are approximate design values not exact", "sibling_family": "", "via": "answer_title", "answer_title": "Engine nomenclature, layout, mark number and engine constant", "cross_family": false } ] }, { "qid": "CHE-2025-08-0191-Q002", "text": "Liner material", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "CHE-2025-08-0191", "tray": "review", "candidates": [ { "answer_id": "CYL-LINER-P04-006", "score": 0.7780373692512512, "sibling_score": 0.7780373692512512, "answer_score": null, "sibling_qid": "CHE-2026-05-0569-Q002", "sibling_text": "liner material", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Material & manufacturing", "cross_family": false }, { "answer_id": "CYL-LINER-P02-003", "score": 0.7374706864356995, "sibling_score": 0.7374706864356995, "answer_score": null, "sibling_qid": "KOL-2021-07-1606-Q006", "sibling_text": "liner material liner wear", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L3 · T044-PART_02-G003High", "cross_family": false }, { "answer_id": "CYL-LINER-P03-007", "score": 0.6401436924934387, "sibling_score": 0.6401436924934387, "answer_score": null, "sibling_qid": "CHE-2026-03-0490-Q005", "sibling_text": "liner condition", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Cylinder liner checks at overhaul, decarb and under-piston inspection", "cross_family": false } ] }, { "qid": "CHE-2025-08-0193-Q001", "text": "&6 Ext. T mohan What type of ship and engine", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "CHE-2025-08-0193", "tray": "new", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.5733405947685242, "sibling_score": 0.5733405947685242, "answer_score": null, "sibling_qid": "MUM-2026-06-3490-Q006", "sibling_text": "engine sailed type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.5709820985794067, "sibling_score": 0.5709820985794067, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q001", "sibling_text": "type of ship sailed and engines details", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "MCC-MEB-P01-001", "score": 0.5544440746307373, "sibling_score": 0.5544440746307373, "answer_score": null, "sibling_qid": "KOC-2022-07-2031-Q002", "sibling_text": "type of ship engine model 6s70mc c c means compact explain", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "MC-C (\"Compact\") engine — design and the main constructional differences from MC", "cross_family": true } ] }, { "qid": "CHE-2025-08-0193-Q004", "text": "what type of boiler you had and type of boiler tubes inside and internal parts.", "family": "Boilers - Construction & Components", "subtopic": "Boiler Tubes / Economiser Tubes", "tid": "CHE-2025-08-0193", "tray": "review", "candidates": [ { "answer_id": "BLR-TUBE-P01-002", "score": 0.7734914422035217, "sibling_score": 0.7734914422035217, "answer_score": 0.5720551997423172, "sibling_qid": "CHE-2026-05-0578-Q004", "sibling_text": "what type of boiler you had and type of boiler tubes inside and internal parts", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "03. Types, functions and arrangement of boiler tubes", "cross_family": false }, { "answer_id": "BLR-TUBE-P01-001", "score": 0.7365456223487854, "sibling_score": 0.7365456223487854, "answer_score": null, "sibling_qid": "KOL-2018-08-1409-Q005", "sibling_text": "in boiler what are all types of tubes fitted", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "01. Attaching, fitting and supporting boiler tubes", "cross_family": false }, { "answer_id": "BLR-TUBE-P01-004", "score": 0.7029328346252441, "sibling_score": 0.7029328346252441, "answer_score": 0.4951958626508713, "sibling_qid": "MUM-2026-05-3306-Q001", "sibling_text": "boiler tubes material construction", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "04. Tube material, dimensions and thickness checks", "cross_family": false } ] }, { "qid": "CHE-2025-08-0193-Q006", "text": "What is bridge gauge used for and how u measure clearance", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Main Bearing / Bedplate / Bridge Gauge", "tid": "CHE-2025-08-0193", "tray": "review", "candidates": [ { "answer_id": "MN-BRG-C-003", "score": 0.7681082487106323, "sibling_score": 0.7681082487106323, "answer_score": 0.5074177801609039, "sibling_qid": "CHE-2026-05-0578-Q006", "sibling_text": "what is bridge gauge used for and how u measure clearance", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Main bearing clearance and wear-down: measuring and interpreting", "cross_family": false }, { "answer_id": "BCL-592-001", "score": 0.6494200229644775, "sibling_score": 0.6494200229644775, "answer_score": 0.4989074021577835, "sibling_qid": "KOL-2022-10-3575-Q003", "sibling_text": "how you take clearance of main bearing using bridge gauge what are all the precautions you will take so that your reading should be correct", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you take main bearing clearance with a bridge gauge? What checks and precautions come first, and where must the crankshaft be positioned?", "cross_family": true }, { "answer_id": "CSD-BF036-002", "score": 0.5879841446876526, "sibling_score": 0.5879841446876526, "answer_score": null, "sibling_qid": "KOL-2026-02-3920-Q004", "sibling_text": "trammel gauge how to take measurements 5", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "How do you take a crankshaft deflection — pre-checks, and instructing the 3/E?", "cross_family": false } ] }, { "qid": "CHE-2025-08-0193-Q007", "text": "Po asked : what is difference between telescopic feeler gauge and normal feeler gauge and why that name.", "family": "Gauges & Tools", "subtopic": "Feeler Gauge", "tid": "CHE-2025-08-0193", "tray": "new", "candidates": [ { "answer_id": "MICR-002", "score": 0.5645810961723328, "sibling_score": 0.5645810961723328, "answer_score": null, "sibling_qid": "KOL-2018-05-1373-Q012", "sibling_text": "screw gauge zero calibration", "sibling_family": "Gauges & Tools", "via": "sibling", "answer_title": "Zero setting, calibration, error check and trueness", "cross_family": false }, { "answer_id": "MN-BRG-C-003", "score": 0.5182220935821533, "sibling_score": 0.5182220935821533, "answer_score": null, "sibling_qid": "KOL-2023-11-3655-Q008", "sibling_text": "how to take main bearing clearance 2 methods where will you insert depth gauge and telescopic feeler gauge", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main bearing clearance and wear-down: measuring and interpreting", "cross_family": true }, { "answer_id": "MICR-003", "score": 0.5175732970237732, "sibling_score": 0.5175732970237732, "answer_score": 0.44016929268836974, "sibling_qid": "KOL-2024-09-3709-Q005", "sibling_text": "liner calibration micometer zerro error setting and how to take reading", "sibling_family": "Gauges & Tools", "via": "sibling", "answer_title": "Cylinder liner calibration with the inside micrometer", "cross_family": false } ] }, { "qid": "CHE-2025-08-0193-Q008", "text": "4 stroke engine bottom end bearing overhaul and checks.", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Decarb Checks / Connecting Rod / Bottom End Bearing", "tid": "CHE-2025-08-0193", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-007", "score": 0.8283562064170837, "sibling_score": 0.8283562064170837, "answer_score": 0.6045452296733856, "sibling_qid": "CHE-2026-05-0578-Q008", "sibling_text": "4 stroke engine bottom end bearing overhaul and checks", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE big-end / bottom-end bearing — inspection, bedding, nip and crush", "cross_family": false }, { "answer_id": "AECR-651-004", "score": 0.7415799498558044, "sibling_score": 0.7415799498558044, "answer_score": 0.5988492339849472, "sibling_qid": "MUM-2022-07-0017-Q017", "sibling_text": "bottom end bearing inspection", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "How do you inspect the bottom-end bearing, and how do you take the AE big-end clearance without removing it?", "cross_family": false }, { "answer_id": "BEB-B-001", "score": 0.725417971611023, "sibling_score": 0.725417971611023, "answer_score": null, "sibling_qid": "MUM-2025-08-2826-Q008", "sibling_text": "main engine bottom end bearing checks", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bottom End Bearing — Survey & Inspection", "cross_family": true } ] }, { "qid": "CHE-2025-08-0194-Q006", "text": "When taking engine room rounds ,what all are the things you will check.", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Safeties on Main Engine", "tid": "CHE-2025-08-0194", "tray": "review", "candidates": [ { "answer_id": "ELEC-SURV-002", "score": 0.7660547494888306, "sibling_score": 0.7660547494888306, "answer_score": null, "sibling_qid": "CHE-2026-05-0573-Q006", "sibling_text": "when taking engine room rounds what all are the things you will check", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Survey checks & engine-room electrical inspection", "cross_family": true }, { "answer_id": "LLC-SURV-P01-001", "score": 0.6967707276344299, "sibling_score": 0.6967707276344299, "answer_score": 0.5831476151943207, "sibling_qid": "KOC-2024-01-0273-Q003", "sibling_text": "loadline survey as 2e checks in engine room", "sibling_family": "", "via": "sibling", "answer_title": "Load line survey preparation as Second Engineer: engine-room scope, machinery openings, tanks/vents, valves and overboard checks", "cross_family": false }, { "answer_id": "CRANE-ER-001", "score": 0.6947908401489258, "sibling_score": 0.6947908401489258, "answer_score": null, "sibling_qid": "MUM-2026-04-2956-Q007", "sibling_text": "engine room crane checks", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Pre-use safety, maintenance & certification checks on the ER crane", "cross_family": true } ] }, { "qid": "CHE-2025-08-0194-Q007", "text": "how you do encomiser cleaning,how you know you did your cleaning effectively.", "family": "Boilers - Construction & Components", "subtopic": "Boiler Tubes / Economiser Tubes", "tid": "CHE-2025-08-0194", "tray": "new", "candidates": [ { "answer_id": "SCAV-323-P02-005", "score": 0.5085674524307251, "sibling_score": 0.5085674524307251, "answer_score": null, "sibling_qid": "KOL-2018-04-3138-Q004", "sibling_text": "scavenge cleaning has been carried out 3rd s going inside for inspection wat u things as a 2e ull tell him to check specifically nd report to you", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Scavenge-space inspection: preparation, checks and findings", "cross_family": true }, { "answer_id": "ECON-EGB-005", "score": 0.4902555048465729, "sibling_score": 0.4902555048465729, "answer_score": 0.346833735704422, "sibling_qid": "KOC-2025-01-1457-Q010", "sibling_text": "egb cleaning wanted to hear chemical cleaning and chemical used didn t knew", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Cleaning, choking & soot-fire prevention / indication / temperature", "cross_family": false }, { "answer_id": "BFS-257-010", "score": 0.47224825620651245, "sibling_score": 0.47224825620651245, "answer_score": 0.3791577652096748, "sibling_qid": "MUM-2026-06-3391-Q007", "sibling_text": "soot blowing done efficiently how do u know", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "How to confirm soot blowing has been carried out effectively", "cross_family": true } ] }, { "qid": "CHE-2025-08-0194-Q008", "text": "After starting boiler what all are the checks you will do,what is flame colour,if flame colour not Good,what you will do... flame colour how it will affect otherthan black smoke.", "family": "Boilers - Burner & Combustion Control", "subtopic": "Burner / Flame Failure / Combustion", "tid": "CHE-2025-08-0194", "tray": "review", "candidates": [ { "answer_id": "BFM-330-001", "score": 0.7378183603286743, "sibling_score": 0.7378183603286743, "answer_score": 0.583671885728836, "sibling_qid": "MUM-2026-02-1259-Q002", "sibling_text": "boiler giving flame failure why and action", "sibling_family": "Boilers - Burner & Combustion Control", "via": "sibling", "answer_title": "Boiler flame failure or burner not firing — troubleshooting", "cross_family": false }, { "answer_id": "BFEYE-340-001", "score": 0.711997389793396, "sibling_score": 0.711997389793396, "answer_score": null, "sibling_qid": "KOL-2018-03-3127-Q004", "sibling_text": "boiler flame failure reason and checks", "sibling_family": "Boilers - 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Fire Safety", "via": "sibling", "answer_title": "CG-002 · How the cylinder-unloader mechanism works", "cross_family": false } ] }, { "qid": "CHE-2025-08-0200-Q002", "text": "Explaing how egb fire takes place", "family": "Boilers - Safety & Survey", "subtopic": "Boiler Strength Check", "tid": "CHE-2025-08-0200", "tray": "new", "candidates": [ { "answer_id": "UPT-FIRE-003", "score": 0.5485436916351318, "sibling_score": 0.5485436916351318, "answer_score": 0.41122386455535886, "sibling_qid": "KOC-2024-12-1883-Q004", "sibling_text": "egb fire as 2e", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Fire in the exhaust gas boiler or economiser — actions and instructions to the duty engineers", "cross_family": true }, { "answer_id": "SMK-FUNL-BF01-004", "score": 0.48659205436706543, "sibling_score": 0.48659205436706543, "answer_score": 0.4178424507379532, "sibling_qid": "CHE-2026-09-3929-Q001", "sibling_text": "action spark in funnel ege fire", "sibling_family": "2-Stroke - 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Fuel Injection & Pumps", "via": "sibling", "answer_title": "Aux-engine / Bosch jerk fuel pump — overhaul, checks, boxing up", "cross_family": true } ] }, { "qid": "CHE-2025-08-0207-Q001", "text": "Types of engine", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "CHE-2025-08-0207", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.7228509783744812, "sibling_score": 0.7228509783744812, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.7153037190437317, "sibling_score": 0.7153037190437317, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-001", "score": 0.4480996191501617, "sibling_score": null, "answer_score": 0.4480996191501617, "sibling_qid": "", "sibling_text": "1 turbocharger type main engine vs generator engine compressor is centrifugal in both cases only the turbine type differs large slow speed main engine axial flow turbine single stage constant pressure system", "sibling_family": "", "via": "answer_title", "answer_title": "1. Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "CHE-2025-08-0207-Q004", "text": "Tc axial movement", "family": "Turbocharger", "subtopic": "TC Bearing", "tid": "CHE-2025-08-0207", "tray": "new", "candidates": [ { "answer_id": "VTA-TC-004", "score": 0.5373891592025757, "sibling_score": 0.5373891592025757, "answer_score": null, "sibling_qid": "KOL-2025-08-2009-Q003", "sibling_text": "variable geometry tc design and working", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Controlling and actuating the vanes; signal source", "cross_family": false }, { "answer_id": "TC-CONST-003", "score": 0.5358033776283264, "sibling_score": 0.5358033776283264, "answer_score": null, "sibling_qid": "KOL-2018-07-1393-Q005", "sibling_text": "arrangement for expansion of t c shaft with outboard bearings", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "General construction and turbocharger arrangement", "cross_family": false }, { "answer_id": "TURBO-CS-P02-009", "score": 0.5280635356903076, "sibling_score": 0.5280635356903076, "answer_score": null, "sibling_qid": "KOC-2026-03-0933-Q005", "sibling_text": "tc rotor assembly functions", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharger rotor assembly — components, functions and expansion", "cross_family": false } ] }, { "qid": "CHE-2025-08-0207-Q005", "text": "Hydrogen blister", "family": "NDT & Material Testing", "subtopic": "Hydrogen Embrittlement", "tid": "CHE-2025-08-0207", "tray": "new", "candidates": [ { "answer_id": "LH-ELEC-002", "score": 0.5310604572296143, "sibling_score": 0.5310604572296143, "answer_score": null, "sibling_qid": "CHE-2026-08-3900-Q019", "sibling_text": "hydrogen embrittlement", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "2. Why are low-hydrogen electrodes used, and what hydrogen defect do they prevent?", "cross_family": false }, { "answer_id": "BIO-FUEL-002", "score": 0.5065831542015076, "sibling_score": 0.5065831542015076, "answer_score": null, "sibling_qid": "MUM-2026-02-1281-Q008", "sibling_text": "gren hydrogen blue hydrogen", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Green, blue and grey hydrogen and ammonia — what the colours mean", "cross_family": true }, { "answer_id": "HV-SYS-P04-001", "score": 0.49235159158706665, "sibling_score": 0.49235159158706665, "answer_score": null, "sibling_qid": "KOL-2022-01-2525-Q002", "sibling_text": "hv why hv burn is so dangerous what actually burns", "sibling_family": "", "via": "sibling", "answer_title": "HV-SYS-P04-001 - HV hazards, advantages and safeties", "cross_family": false } ] }, { "qid": "CHE-2025-08-0208-Q001", "text": "Types of engine sailed. Parts of crankshaft. Explain what stresses are acting on each part of crankshaft and why?(doesn't accept torsion,shear,compressive,cyclic,tension).", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft Material", "tid": "CHE-2025-08-0208", "tray": "review", "candidates": [ { "answer_id": "CRK-DEFL-001", "score": 0.7668629288673401, "sibling_score": 0.7668629288673401, "answer_score": null, "sibling_qid": "CHE-2026-05-0644-Q006", "sibling_text": "parts of crankshaft explain what stresses are acting on each part of crankshaft and why", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Purpose, timing and scope of crankshaft deflection", "cross_family": false }, { "answer_id": "CRANK-217-001", "score": 0.699589192867279, "sibling_score": 0.699589192867279, "answer_score": null, "sibling_qid": "MUM-2023-10-1063-Q006", "sibling_text": "types of crank shaft", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankshaft types and how the type is identified", "cross_family": false }, { "answer_id": "HT-A-001", "score": 0.6932151913642883, "sibling_score": 0.6932151913642883, "answer_score": null, "sibling_qid": "MUM-2026-05-3283-Q006", "sibling_text": "crankshaft material and heat treatment", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Heat treatment: what it is, the main methods, and why it is done", "cross_family": false } ] }, { "qid": "CHE-2025-08-0208-Q003", "text": "When we say mixing two oils is unstable and non-compatible, what is meant by being unstable and what is meant by being", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Lube Oil Emulsification", "tid": "CHE-2025-08-0208", "tray": "review", "candidates": [ { "answer_id": "FQCC-583-B-010", "score": 0.691909670829773, "sibling_score": 0.691909670829773, "answer_score": 0.5529282927513123, "sibling_qid": "CHE-2026-02-0243-Q003", "sibling_text": "instability and compatibility of fuel oil not definition he is asking he is what will happen if you blend two oil he is not accepting sludge formation and filter chocking", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Stability, compatibility, asphaltenes and commingling — what happens when you blend two fuels?", "cross_family": true }, { "answer_id": "FQCC-583-A-007", "score": 0.5554292172193527, "sibling_score": null, "answer_score": 0.5554292172193527, "sibling_qid": "", "sibling_text": "compatibility stability and blending stability one fuel over time holds its asphaltenes compatibility two fuels when mixed do not drop asphaltenes different questions a stable fuel can be incompatible with another stable fuel mechanism asphaltenes are peptised by resins and carried by the aromatic fraction dilute the aromatics with paraffins or stress the fuel with heat and they flocculate agglome", "sibling_family": "", "via": "answer_title", "answer_title": "Compatibility, stability and blending", "cross_family": false }, { "answer_id": "REF-CYC-004", "score": 0.5536787509918213, "sibling_score": 0.5536787509918213, "answer_score": null, "sibling_qid": "MUM-2025-07-2331-Q002", "sibling_text": "why it is miscible in oil", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "4. Desirable properties, selection and types of refrigerant", "cross_family": true } ] }, { "qid": "CHE-2025-08-0208-Q004", "text": "non-compatible?don't say the effects of it or indications, what is meant by those specific terms?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Lube Oil Emulsification", "tid": "CHE-2025-08-0208", "tray": "new", "candidates": [ { "answer_id": "ISMNC-001", "score": 0.527717113494873, "sibling_score": 0.527717113494873, "answer_score": null, "sibling_qid": "KOC-2023-04-0181-Q005", "sibling_text": "non conformity", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a non-conformity under the ISM Code? Give the definition.", "cross_family": true }, { "answer_id": "FQCC-583-B-010", "score": 0.5137922167778015, "sibling_score": 0.5137922167778015, "answer_score": 0.35468173325061797, "sibling_qid": "CHE-2025-12-0238-Q002", "sibling_text": "what is incompatable and unstable fuel", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Stability, compatibility, asphaltenes and commingling — what happens when you blend two fuels?", "cross_family": true }, { "answer_id": "WMAT-170-004", "score": 0.5115686058998108, "sibling_score": 0.5115686058998108, "answer_score": null, "sibling_qid": "KOL-2024-03-1776-Q005", "sibling_text": "conformibilty", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Embeddability and conformability of bearing materials", "cross_family": false } ] }, { "qid": "CHE-2025-08-0208-Q006", "text": "How to stop axial movement of turbine blades in turbocharger?(Doesn't accept thrust collar with bearing on the rotor-said it's for rotor axial movement not blades axial movement. Doesn't accept binding wire in rotor blades)", "family": "Turbocharger", "subtopic": "TC Construction", "tid": "CHE-2025-08-0208", "tray": "review", "candidates": [ { "answer_id": "TC-CONST-004", "score": 0.8948991298675537, "sibling_score": 0.8948991298675537, "answer_score": null, "sibling_qid": "CHE-2026-05-0644-Q010", "sibling_text": "how to stop axial movement of turbine blades in turbocharger doesn t accept thrust collar with bearing on the rotor said it s for rotor axial movement not blades axial movement doesn t accept binding wire in rotor blades", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbine-side components: nozzle rings, vanes and blade fitting", "cross_family": false }, { "answer_id": "TURBO-CS-P03-004", "score": 0.7218505144119263, "sibling_score": 0.7218505144119263, "answer_score": 0.5836867809295654, "sibling_qid": "KOL-2022-11-1717-Q001", "sibling_text": "turbocharger blade fitting arrangements damping wire purpose and position", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Rotor blade fixing: fir-tree / bulb root, damping (lacing) wire", "cross_family": false }, { "answer_id": "TURBO-CS-P02-010", "score": 0.7147596478462219, "sibling_score": 0.7147596478462219, "answer_score": 0.5210792124271393, "sibling_qid": "KOL-2019-07-1466-Q003", "sibling_text": "turbocharger blade fixing arrangement and related cross question", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbine blade fixing, connection and material", "cross_family": false } ] }, { "qid": "CHE-2025-08-0210-Q001", "text": "What type of engines sailed", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "CHE-2025-08-0210", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.7544412016868591, "sibling_score": 0.7544412016868591, "answer_score": null, "sibling_qid": "CHE-2026-03-0250-Q003", "sibling_text": "type of engines sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.6937070488929749, "sibling_score": 0.6937070488929749, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q001", "sibling_text": "type of ship sailed and engines details", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ETP-344-P03-001", "score": 0.653445839881897, "sibling_score": 0.653445839881897, "answer_score": null, "sibling_qid": "MUM-2026-06-3492-Q002", "sibling_text": "which type of engines worked on", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false } ] }, { "qid": "CHE-2025-08-0210-Q003", "text": "Cylinder liner material, why cast iron is used", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "CHE-2025-08-0210", "tray": "review", "candidates": [ { "answer_id": "MATPROP-A-003", "score": 0.6545788049697876, "sibling_score": 0.6545788049697876, "answer_score": null, "sibling_qid": "KOL-2021-10-1633-Q002", "sibling_text": "cast iron advantage", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Cast iron: grey, white, nodular; versus cast steel", "cross_family": true }, { "answer_id": "HT-A-001", "score": 0.5906283855438232, "sibling_score": 0.5906283855438232, "answer_score": null, "sibling_qid": "CHE-2026-05-0569-Q003", "sibling_text": "why cast iron and heat treatment process", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Heat treatment: what it is, the main methods, and why it is done", "cross_family": true }, { "answer_id": "CYL-LINER-P04-006", "score": 0.5599434971809387, "sibling_score": 0.5599434971809387, "answer_score": 0.460830557346344, "sibling_qid": "MUM-2026-05-3002-Q004", "sibling_text": "draw iron carbon diagram explain where we use pearlite cylinder liner which material", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Material & manufacturing", "cross_family": false } ] }, { "qid": "CHE-2025-08-0210-Q004", "text": "What type of bearing in your turbocharger, how bearing librication is achieved", "family": "Turbocharger", "subtopic": "TC Bearing", "tid": "CHE-2025-08-0210", "tray": "review", "candidates": [ { "answer_id": "TURBO-CS-P03-008", "score": 0.7400562167167664, "sibling_score": 0.7400562167167664, "answer_score": 0.6302849978208541, "sibling_qid": "CHE-2026-03-0181-Q012", "sibling_text": "turbocharger types of bearing", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharger bearings: types, lubrication, damage and action", "cross_family": false }, { "answer_id": "TC-CONST-005", "score": 0.7193394303321838, "sibling_score": 0.7193394303321838, "answer_score": null, "sibling_qid": "MUM-2025-07-2815-Q005", "sibling_text": "turbocharger compressor side construction and type of bearing and lubrication", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Compressor/blower side components and air flow", "cross_family": false }, { "answer_id": "TURBO-CS-P03-009", "score": 0.6960187554359436, "sibling_score": 0.6960187554359436, "answer_score": null, "sibling_qid": "KOL-2022-07-1702-Q004", "sibling_text": "me turbocharger type nozzle ring working types of lubrication", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Lubrication arrangement: integral vs external, sealing air", "cross_family": false } ] }, { "qid": "CHE-2025-08-0210-Q007", "text": "Difference between forged, semi built crankshaft.", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft Material", "tid": "CHE-2025-08-0210", "tray": "review", "candidates": [ { "answer_id": "CRANK-217-001", "score": 0.734809935092926, "sibling_score": 0.734809935092926, "answer_score": 0.5781292498111724, "sibling_qid": "MUM-2021-02-1009-Q007", "sibling_text": "difference between semi built and fully built crankshaft", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankshaft types and how the type is identified", "cross_family": false }, { "answer_id": "CRANK-217-002", "score": 0.6656075119972229, "sibling_score": 0.6656075119972229, "answer_score": 0.590783229470253, "sibling_qid": "MUM-2026-05-3163-Q008", "sibling_text": "how is semi built crankshaft constructed some cross questions like advantages over fully built and where these type of crankshaft is seen", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Semi-built crankshaft: construction, fitting and comparison", "cross_family": false }, { "answer_id": "CRANK-217-004", "score": 0.6098533272743225, "sibling_score": 0.6098533272743225, "answer_score": null, "sibling_qid": "MUM-2026-02-2570-Q003", "sibling_text": "semi built crank shaft slippage", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankshaft slippage, tell-tale marks and action if found", "cross_family": false } ] }, { "qid": "CHE-2025-08-0211-Q003", "text": "What are the advantages of V type engine over conventional main engine? (He expects power to weight ratio)", "family": "Diesel Engines - General", "subtopic": "V-Type Engine / Power-to-Weight", "tid": "CHE-2025-08-0211", "tray": "new", "candidates": [ { "answer_id": "MCC-MEB-P02-004", "score": 0.6320355534553528, "sibling_score": 0.6320355534553528, "answer_score": null, "sibling_qid": "CHE-2025-12-0225-Q007", "sibling_text": "me engine advantage and cross question power to weight ration and less friction so less sfoc expected", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What an intelligent (smart) ME engine is, and why owners prefer it", "cross_family": true }, { "answer_id": "VIB-BAL-C-FINAL-1-002", "score": 0.6059954166412354, "sibling_score": 0.6059954166412354, "answer_score": 0.48177224695682525, "sibling_qid": "KOL-2016-11-1838-Q006", "sibling_text": "adv and dis adv of v type engine and how forces are balanced in v type and inline engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Power Balancing vs Unbalanced-Force Balancing (Firing Order, Counterweights, V vs Inline)", "cross_family": true }, { "answer_id": "FOP-326-A-003", "score": 0.5711122155189514, "sibling_score": 0.5711122155189514, "answer_score": 0.46348311901092526, "sibling_qid": "MUM-2024-06-1081-Q003", "sibling_text": "firing order staggered not sequential power balancing vibration load balancing gas force stroke ratio not acceptable something else", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Significance — power balance, stress, vibration", "cross_family": true } ] }, { "qid": "CHE-2025-08-0213-Q001", "text": "Type of ship sailed", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2025-08-0213", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8456622362136841, "sibling_score": 0.8456622362136841, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.844673752784729, "sibling_score": 0.844673752784729, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7923667430877686, "sibling_score": 0.7923667430877686, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "CHE-2025-08-0214-Q003", "text": "What is the composition of materials used in manufacturing Cylinder liner. How is it made?", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "CHE-2025-08-0214", "tray": "review", "candidates": [ { "answer_id": "CYL-LINER-P04-006", "score": 0.6747702956199646, "sibling_score": 0.6747702956199646, "answer_score": null, "sibling_qid": "MUM-2026-02-1255-Q014", "sibling_text": "cyl liner material", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Material & manufacturing", "cross_family": false }, { "answer_id": "CYL-LINER-P04-002", "score": 0.5819545984268188, "sibling_score": 0.5819545984268188, "answer_score": 0.41421237885951995, "sibling_qid": "KOL-2021-11-3490-Q002", "sibling_text": "me cylinder liner o h", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Judging, measuring, removing & discarding a cylinder liner", "cross_family": false }, { "answer_id": "PRING-B-003", "score": 0.5763632655143738, "sibling_score": 0.5763632655143738, "answer_score": null, "sibling_qid": "KOL-2025-12-4075-Q006", "sibling_text": "if liner is chrome coated piston ring coating material", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Material, coating & manufacture", "cross_family": false } ] }, { "qid": "CHE-2025-08-0214-Q005", "text": "What type of starting air mechanism is used in your aux engine. Explain the starting air motor mechanism.", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE 4-Stroke Theory", "tid": "CHE-2025-08-0214", "tray": "review", "candidates": [ { "answer_id": "SAV-002", "score": 0.6608207821846008, "sibling_score": 0.6608207821846008, "answer_score": null, "sibling_qid": "KOC-2021-12-1771-Q006", "sibling_text": "auxiliary engine not turning on air only oscillates not the one with starter type he was asking about starting air valve mounted type he said on the air distributor there will be two disc one has only one hole another has multiple holes one of them is stationary and the other is rotary the gap between this two disc increased which cause starting air to leak out instead of going into the unit", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Identifying and testing a leaking starting air valve", "cross_family": true }, { "answer_id": "ME-NOSTART-001", "score": 0.65865159034729, "sibling_score": 0.65865159034729, "answer_score": null, "sibling_qid": "MUM-2026-06-3662-Q003", "sibling_text": "ae starting on air not on fuel reason and actions", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Starts / turns on air but will not start on fuel — causes, checks and rectification", "cross_family": false }, { "answer_id": "SAV-001", "score": 0.6441308259963989, "sibling_score": 0.6441308259963989, "answer_score": null, "sibling_qid": "KOL-2023-05-1932-Q002", "sibling_text": "air starting system", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Construction and working of the main automatic starting air valve", "cross_family": true } ] }, { "qid": "CHE-2025-08-0267-Q003", "text": "Motor number of terminal", "family": "Electrical - Motors & Starters", "subtopic": "Motor Terminals / Connections", "tid": "CHE-2025-08-0267", "tray": "review", "candidates": [ { "answer_id": "IP-ENCL-001", "score": 0.8826032280921936, "sibling_score": 0.8826032280921936, "answer_score": null, "sibling_qid": "MUM-2026-01-1899-Q009", "sibling_text": "motor number of terminal", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "IP rating of motors — what the numbers mean", "cross_family": false }, { "answer_id": "ELECTRICAL-M-A-01", "score": 0.7231876254081726, "sibling_score": 0.7231876254081726, "answer_score": 0.5565035462379455, "sibling_qid": "MUM-2026-01-1850-Q006", "sibling_text": "frame number of motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Motor Frame Number", "cross_family": false }, { "answer_id": "CONT-317-003", "score": 0.6643084287643433, "sibling_score": 0.6643084287643433, "answer_score": null, "sibling_qid": "MUM-2024-07-1445-Q002", "sibling_text": "motor received overhaul terminal markings have gone how to identify the terminals", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Continuity to confirm terminal identity after overhaul or rewind", "cross_family": false } ] }, { "qid": "CHE-2025-08-0267-Q004", "text": "Star delta connection", "family": "Electrical - Generator & Alternator", "subtopic": "Star or Delta Connection", "tid": "CHE-2025-08-0267", "tray": "new", "candidates": [ { "answer_id": "SDC-005", "score": 0.6437439322471619, "sibling_score": 0.6437439322471619, "answer_score": 0.3614211529493332, "sibling_qid": "KOC-2021-09-1148-Q002", "sibling_text": "draw delta connection", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Draw the delta connection", "cross_family": false }, { "answer_id": "SDST-A-001", "score": 0.6350242495536804, "sibling_score": 0.6350242495536804, "answer_score": 0.35573447942733766, "sibling_qid": "MUM-2026-07-3704-Q016", "sibling_text": "star delta connection", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false }, { "answer_id": "SDST-B-001", "score": 0.6281833648681641, "sibling_score": 0.6281833648681641, "answer_score": 0.33571031391620637, "sibling_qid": "MUM-2026-06-3611-Q007", "sibling_text": "star delta is not changing to delta reason", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Explain the star-delta control circuit - timer, interlocks, changeover and how the switching point is chosen.", "cross_family": true } ] }, { "qid": "CHE-2025-08-0268-Q006", "text": "Contactor maintenance carried", "family": "Electrical - Protection & Relays", "subtopic": "Protection / Relays", "tid": "CHE-2025-08-0268", "tray": "new", "candidates": [ { "answer_id": "CBR-ARC-G-002", "score": 0.5845314860343933, "sibling_score": 0.5845314860343933, "answer_score": null, "sibling_qid": "CHE-2026-05-0630-Q007", "sibling_text": "acb maintenance working how many contacts are there", "sibling_family": "Electrical - Switchgear & Protection", "via": "sibling", "answer_title": "ACB construction, contacts, arc chutes, auxiliaries and VCB parts", "cross_family": true }, { "answer_id": "PRL-594-001", "score": 0.5709326863288879, "sibling_score": 0.5709326863288879, "answer_score": null, "sibling_qid": "CHE-2026-05-0611-Q006", "sibling_text": "contactor power supply", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "What is the difference between a relay and a contactor?", "cross_family": false }, { "answer_id": "CB033-C-001", "score": 0.5629839897155762, "sibling_score": 0.5629839897155762, "answer_score": 0.36879095882177354, "sibling_qid": "CHE-2026-05-0633-Q011", "sibling_text": "maintenance on circuit breaker", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "How do you carry out maintenance and testing on an ACB / main circuit breaker?", "cross_family": false } ] }, { "qid": "CHE-2025-08-0272-Q004", "text": "Under voltage trip xqn", "family": "Electrical - Generator & Alternator", "subtopic": "Voltage Dip / Droop", "tid": "CHE-2025-08-0272", "tray": "review", "candidates": [ { "answer_id": "OC-UV-TRIP-001", "score": 0.7072564959526062, "sibling_score": 0.7072564959526062, "answer_score": 0.5255796909332275, "sibling_qid": "CHE-2026-03-0345-Q002S2", "sibling_text": "explain under voltage trip", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Under-voltage trip / no-volt coil — purpose, working, onboard test and calibration", "cross_family": false }, { "answer_id": "RPT-C-001", "score": 0.6617387533187866, "sibling_score": 0.6617387533187866, "answer_score": null, "sibling_qid": "CHE-2026-04-0520-Q004", "sibling_text": "reverse power trip is there any other trip there under voltage trip if undervoltage trip is there why u reverse power trip", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Reverse power in the paralleling picture — where it sits among the alternator safeties", "cross_family": false }, { "answer_id": "AVR-EXC-H-001", "score": 0.6549866795539856, "sibling_score": 0.6549866795539856, "answer_score": null, "sibling_qid": "MUM-2026-06-3371-Q005", "sibling_text": "why undervoltage trip avr faulty", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "AVR — location, components and fault checks", "cross_family": false } ] }, { "qid": "CHE-2025-08-0274-Q003", "text": "Steering gear motor safety", "family": "Electrical - Motors & Starters", "subtopic": "STEERING GEAR MOTOR-ELECTRICAL", "tid": "CHE-2025-08-0274", "tray": "review", "candidates": [ { "answer_id": "SGM-ELEC-001", "score": 0.8185032606124878, "sibling_score": 0.8185032606124878, "answer_score": 0.5603844553232192, "sibling_qid": "CHE-2026-02-0333-Q006", "sibling_text": "steering gear motor safeties", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What are the safeties, alarms and trips on the steering gear motor as per SOLAS — and how do you activate the safematic?", "cross_family": false }, { "answer_id": "SGM-ELEC-002", "score": 0.8183143734931946, "sibling_score": 0.8183143734931946, "answer_score": null, "sibling_qid": "MUM-2026-05-3190-Q008", "sibling_text": "steering gear motor safeties", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What type of motor is the steering gear motor, how does it differ from other engine-room motors, and how do you order one?", "cross_family": false }, { "answer_id": "ELEC-SAFE-006", "score": 0.6167509347200394, "sibling_score": null, "answer_score": 0.6167509347200394, "sibling_qid": "", "sibling_text": "steering gear electrical safety and motor insulation essential service duplicated supplies often one from the emergency switchboard motors have short circuit protection and an overload alarm no normal overload trip that would stop steering", "sibling_family": "", "via": "answer_title", "answer_title": "Steering gear electrical safety and motor insulation", "cross_family": false } ] }, { "qid": "CHE-2025-08-0277-Q005", "text": "Two generator running in parallel if one prime mover stops suddenly. And asked what will happen after this.", "family": "Electrical - Generator & Alternator", "subtopic": "Motoring Effect", "tid": "CHE-2025-08-0277", "tray": "review", "candidates": [ { "answer_id": "SYNC-C-001", "score": 0.799792468547821, "sibling_score": 0.799792468547821, "answer_score": null, "sibling_qid": "CHE-2026-05-0581-Q005", "sibling_text": "two generator running in parallel if one prime mover stops suddenly and asked what will happen after this", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Paralleling generators — procedure, conditions and practical checks", "cross_family": false }, { "answer_id": "LS-IMB-A-001", "score": 0.7202599048614502, "sibling_score": 0.7202599048614502, "answer_score": null, "sibling_qid": "KOL-2025-11-2905-Q002", "sibling_text": "two generators running in parallel but different kw reason", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Two paralleled generators sharing unequal load — cause and correction", "cross_family": false }, { "answer_id": "LS-IMB-A-002", "score": 0.6806972622871399, "sibling_score": 0.6806972622871399, "answer_score": null, "sibling_qid": "KOL-2022-07-2574-Q004", "sibling_text": "two generators running parallel one generator rpm little less why", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "2. Governor speed droop, isochronous control and the load-control switch", "cross_family": false } ] }, { "qid": "CHE-2025-08-0278-Q001", "text": "Type of ship sailed", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2025-08-0278", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8456622362136841, "sibling_score": 0.8456622362136841, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.844673752784729, "sibling_score": 0.844673752784729, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7923667430877686, "sibling_score": 0.7923667430877686, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "CHE-2025-08-0278-Q004", "text": "residual magnetism", "family": "Electrical - Generator & Alternator", "subtopic": "Residual Magnetism / Flashing", "tid": "CHE-2025-08-0278", "tray": "review", "candidates": [ { "answer_id": "RES-MAG-001", "score": 0.8040373921394348, "sibling_score": 0.8040373921394348, "answer_score": 0.50749671459198, "sibling_qid": "KOC-2026-04-0911-Q002", "sibling_text": "residual magnetism", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Residual magnetism — what it is, where it is stored, how it is lost and how you restore it", "cross_family": false }, { "answer_id": "AR-263-001", "score": 0.35114939212799073, "sibling_score": null, "answer_score": 0.35114939212799073, "sibling_qid": "", "sibling_text": "what is armature reaction and where is it found armature mmf from load current acting on the main field mmf no load current no reaction with brushes on neutral the dc machine effect is mainly cross magnetizing pole tip saturation still gives a small net flux weakening a true demagnetizing component comes in only when the brushes are shifted off neutral", "sibling_family": "", "via": "answer_title", "answer_title": "What is armature reaction, and where is it found?", "cross_family": false }, { "answer_id": "XFMR-THY-G-004", "score": 0.34621783941984174, "sibling_score": null, "answer_score": 0.34621783941984174, "sibling_qid": "", "sibling_text": "4 transformer leakage flux and magnetic reluctance", "sibling_family": "", "via": "answer_title", "answer_title": "4. Transformer leakage flux and magnetic reluctance", "cross_family": false } ] }, { "qid": "CHE-2025-08-0280-Q017", "text": "Type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2025-08-0280", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8366292119026184, "sibling_score": 0.8366292119026184, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8018827438354492, "sibling_score": 0.8018827438354492, "answer_score": 0.5473108261823654, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8003316521644592, "sibling_score": 0.8003316521644592, "answer_score": 0.5218650102615356, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "CHE-2025-08-0280-Q019", "text": "Type of Propulsion ( diesel electric)", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "CHE-2025-08-0280", "tray": "review", "candidates": [ { "answer_id": "RES-PROP-P03-001", "score": 0.8616631627082825, "sibling_score": 0.8616631627082825, "answer_score": 0.603104954957962, "sibling_qid": "CHE-2026-05-0603-Q019", "sibling_text": "type of propulsion diesel electric", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "1. Electric (diesel-electric) propulsion: arrangement, speed control, advantages and limitations", "cross_family": false }, { "answer_id": "MEGI-304-004", "score": 0.6612016558647156, "sibling_score": 0.6612016558647156, "answer_score": null, "sibling_qid": "KOL-2019-08-1479-Q001", "sibling_text": "type of fuel use of pilot fuel in dfde ship question asked because i told type of main engine electric propulsion", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "4. Pilot fuel / pilot injection — purpose and why on every firing in gas mode", "cross_family": true }, { "answer_id": "AE-CRP-005", "score": 0.6488627195358276, "sibling_score": 0.6488627195358276, "answer_score": null, "sibling_qid": "MUM-2025-08-2357-Q001", "sibling_text": "type of ship type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "CHE-2025-08-0281-Q002", "text": "Is their relation between heat and resistance ? To allow thermal expansion of piston rod and ring wear, please correct me if I am wrong. Easy to fix and dismantle they are in segments because even if they wear down they provide good sealing with the piston rod surface", "family": "2-Stroke - Components (Other)", "subtopic": "Piston Rod / Ring Wear", "tid": "CHE-2025-08-0281", "tray": "review", "candidates": [ { "answer_id": "PRING-CLR-A-002", "score": 0.6678669452667236, "sibling_score": 0.6678669452667236, "answer_score": 0.5226917445659637, "sibling_qid": "KOL-2017-07-3075-Q005", "sibling_text": "piston ring clearances limits of wear down expander of how", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston-ring clearances and calibration — butt, axial, radial, wear limits", "cross_family": false }, { "answer_id": "PRING-CLR-A-001", "score": 0.6572923064231873, "sibling_score": 0.6572923064231873, "answer_score": null, "sibling_qid": "KOC-2026-05-2132-Q004", "sibling_text": "piston drawing materials piston ring material cpr groove", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston-ring types — CPR, POP, the PC ring, and the pinned gap", "cross_family": false }, { "answer_id": "PRING-B-005", "score": 0.6551520228385925, "sibling_score": 0.6551520228385925, "answer_score": null, "sibling_qid": "MUM-2024-02-2759-Q005", "sibling_text": "modifications in piston rings", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Running-in & latest developments", "cross_family": false } ] }, { "qid": "CHE-2025-08-0282-Q006", "text": "Contactor power supply", "family": "Electrical - Protection & Relays", "subtopic": "Protection / Relays", "tid": "CHE-2025-08-0282", "tray": "review", "candidates": [ { "answer_id": "PRL-594-001", "score": 0.8395552039146423, "sibling_score": 0.8395552039146423, "answer_score": null, "sibling_qid": "CHE-2026-05-0611-Q006", "sibling_text": "contactor power supply", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "What is the difference between a relay and a contactor?", "cross_family": false }, { "answer_id": "FUSE-HRC-005", "score": 0.6382587552070618, "sibling_score": 0.6382587552070618, "answer_score": null, "sibling_qid": "KOC-2023-01-0127-Q015", "sibling_text": "fuse vs contactor", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Fuse vs other protective devices (relay, breaker, contactor, thermistor); and HRC vs HBC", "cross_family": false }, { "answer_id": "AUC-PLC-03", "score": 0.6364552974700928, "sibling_score": 0.6364552974700928, "answer_score": 0.46122553348541256, "sibling_qid": "KOL-2025-05-2784-Q003", "sibling_text": "plc source of power", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "PLC power supply arrangements — normal, emergency and ride-through", "cross_family": true } ] }, { "qid": "CHE-2025-08-0283-Q007", "text": "[CROSS] Extrincically safe equipment on deck how much current safe current.", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "CHE-2025-08-0283", "tray": "new", "candidates": [ { "answer_id": "HAZ-EX-B-001", "score": 0.6095457077026367, "sibling_score": 0.6095457077026367, "answer_score": null, "sibling_qid": "KOC-2023-12-1312-Q016", "sibling_text": "paul sir intrinsically safe equipments onboard and mention voltage and current", "sibling_family": "", "via": "sibling", "answer_title": "Intrinsically safe (Ex i) equipment — what it is, how it works, where it is used, how you identify it", "cross_family": false }, { "answer_id": "WCM-P02-001", "score": 0.5954519510269165, "sibling_score": 0.5954519510269165, "answer_score": 0.4602475672960281, "sibling_qid": "MUM-2026-06-3651-Q006", "sibling_text": "deck electrical safeties", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Safeties and trips on ship's cranes (deck, cargo, provision, engine-room)", "cross_family": false }, { "answer_id": "BDC-P06-01", "score": 0.5576494932174683, "sibling_score": 0.5576494932174683, "answer_score": null, "sibling_qid": "KOC-2023-02-1234-Q011", "sibling_text": "battery room safeties and some cross in shore supply current transformer exd internal paul sir", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "Battery-room hazards, requirements and entry precautions", "cross_family": false } ] }, { "qid": "CHE-2025-08-0283-Q009", "text": "[CROSS] External Venugopal Internal S.S Moorthu Me specification", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "CHE-2025-08-0283", "tray": "new", "candidates": [ { "answer_id": "PSC-SURV-P01-002", "score": 0.546063244342804, "sibling_score": 0.546063244342804, "answer_score": null, "sibling_qid": "KOL-2022-03-0612-Q003", "sibling_text": "cci full and cross then external asked", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is a Concentrated Inspection Campaign (CIC) under PSC?", "cross_family": true }, { "answer_id": "CRK-DEFL-001", "score": 0.460452139377594, "sibling_score": 0.460452139377594, "answer_score": null, "sibling_qid": "CHE-2025-12-0458-Q003", "sibling_text": "crankshaft deflection cross question external venugopal internal ss moorthy chennai mmd 28 11 2025 what are topics studied", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Purpose, timing and scope of crankshaft deflection", "cross_family": true }, { "answer_id": "IMO-5PIL-001", "score": 0.4462142288684845, "sibling_score": 0.4462142288684845, "answer_score": null, "sibling_qid": "MUM-2025-11-0600-Q002", "sibling_text": "imo structure n cross", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Structure of IMO — the main organs", "cross_family": true } ] }, { "qid": "CHE-2025-08-0283-Q012", "text": "[CROSS] Boiler types advantage of water tube boiler", "family": "Boilers - Construction & Components", "subtopic": "Boiler Types / Construction", "tid": "CHE-2025-08-0283", "tray": "review", "candidates": [ { "answer_id": "BLR-TUBE-P01-002", "score": 0.7684728503227234, "sibling_score": 0.7684728503227234, "answer_score": 0.5177530229091644, "sibling_qid": "CHE-2026-05-0605-Q005", "sibling_text": "boiler types advantage of water tube boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "03. 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Attaching, fitting and supporting boiler tubes", "cross_family": false } ] }, { "qid": "CHE-2025-08-0287-Q003", "text": "Overload relay where nd how it function", "family": "Electrical - Motors & Starters", "subtopic": "Induction Motor (General / Working)", "tid": "CHE-2025-08-0287", "tray": "review", "candidates": [ { "answer_id": "OCR-185-003", "score": 0.7064676284790039, "sibling_score": 0.7064676284790039, "answer_score": 0.5109595954418182, "sibling_qid": "CHE-2026-05-0629-Q010", "sibling_text": "overload relay where nd how it function", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What an overcurrent relay is, where it is fitted, what it protects", "cross_family": false }, { "answer_id": "CB-ACBVCB-B-001", "score": 0.626349687576294, "sibling_score": 0.626349687576294, "answer_score": null, "sibling_qid": "CHE-2026-02-0340-Q007", "sibling_text": "over load relay", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "ACB/main circuit breaker safeties, trips, settings and testing", "cross_family": true }, { "answer_id": "OC-UV-TRIP-003", "score": 0.6126357913017273, "sibling_score": 0.6126357913017273, "answer_score": 0.4894585251808166, "sibling_qid": "MUM-2026-03-2001-Q004", "sibling_text": "overload relay", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Overload trip — activation, time delay and protection effect", "cross_family": true } ] }, { "qid": "CHE-2025-08-0289-Q008", "text": "Diode testing", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Zener / Diode / Rectifier", "tid": "CHE-2025-08-0289", "tray": "review", "candidates": [ { "answer_id": "EPC-P01-02", "score": 0.7718769311904907, "sibling_score": 0.7718769311904907, "answer_score": null, "sibling_qid": "CHE-2026-05-0627-Q008", "sibling_text": "diode testing", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Types of diodes, and where diodes are used on board", "cross_family": false }, { "answer_id": "TC-A-004", "score": 0.6704491972923279, "sibling_score": 0.6704491972923279, "answer_score": 0.5392612874507904, "sibling_qid": "KOC-2025-07-1544-Q003", "sibling_text": "transistor testing other than diode mode", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Testing a transistor — and testing it other than in diode mode", "cross_family": false }, { "answer_id": "EPC-P02-01", "score": 0.6668300628662109, "sibling_score": 0.6668300628662109, "answer_score": null, "sibling_qid": "KOL-2022-08-2593-Q004", "sibling_text": "what is zener diode how diode test onboard", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a zener diode? 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(kamath sir)", "family": "Electrical - Motors & Starters", "subtopic": "STEERING GEAR MOTOR-ELECTRICAL", "tid": "CHE-2025-08-0296", "tray": "review", "candidates": [ { "answer_id": "SGM-ELEC-001", "score": 0.7547590732574463, "sibling_score": 0.7547590732574463, "answer_score": 0.53240427672863, "sibling_qid": "MUM-2025-06-1536-Q001", "sibling_text": "special safeties for steering gear motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What are the safeties, alarms and trips on the steering gear motor as per SOLAS — and how do you activate the safematic?", "cross_family": false }, { "answer_id": "SGM-ELEC-002", "score": 0.7539046406745911, "sibling_score": 0.7539046406745911, "answer_score": null, "sibling_qid": "MUM-2026-05-3190-Q008", "sibling_text": "steering gear motor safeties", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What type of motor is the steering gear motor, how does it differ from other engine-room motors, and how do you order one?", "cross_family": false }, { "answer_id": "ELEC-SAFE-006", "score": 0.5749978125095367, "sibling_score": null, "answer_score": 0.5749978125095367, "sibling_qid": "", "sibling_text": "steering gear electrical safety and motor insulation essential service duplicated supplies often one from the emergency switchboard motors have short circuit protection and an overload alarm no normal overload trip that would stop steering", "sibling_family": "", "via": "answer_title", "answer_title": "Steering gear electrical safety and motor insulation", "cross_family": false } ] }, { "qid": "CHE-2025-08-0297-Q008", "text": "zener barrier and it's limitation", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "CHE-2025-08-0297", "tray": "new", "candidates": [ { "answer_id": "EPC-P02-03", "score": 0.6101111769676208, "sibling_score": 0.6101111769676208, "answer_score": 0.44184094965457915, "sibling_qid": "CHE-2026-02-0333-Q002", "sibling_text": "zener barrier", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Where is a zener diode used on board and why — voltage regulator, AVR, clipper — and explain one application in detail.", "cross_family": false }, { "answer_id": "EPC-P02-01", "score": 0.6094709634780884, "sibling_score": 0.6094709634780884, "answer_score": 0.4650765001773834, "sibling_qid": "MUM-2026-03-2019-Q005", "sibling_text": "zener barrier", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a zener diode? Draw its symbol, explain its working principle, and draw and explain its characteristic curve including the zener (breakdown) voltage.", "cross_family": false }, { "answer_id": "HAZ-EX-B-001", "score": 0.5782431960105896, "sibling_score": 0.5782431960105896, "answer_score": null, "sibling_qid": "CHE-2026-03-0358-Q005", "sibling_text": "zener barrier working in intrinsically safe", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Intrinsically safe (Ex i) equipment — what it is, how it works, where it is used, how you identify it", "cross_family": false } ] }, { "qid": "CHE-2025-08-0405-Q001", "text": "Hydraulic system maintenance? Indications of problems?", "family": "Workshop & Welding", "subtopic": "Hydraulic Pipe", "tid": "CHE-2025-08-0405", "tray": "review", "candidates": [ { "answer_id": "STEER-055-A-004", "score": 0.7052908539772034, "sibling_score": 0.7052908539772034, "answer_score": 0.5783862173557281, "sibling_qid": "MUM-2022-09-2146-Q011", "sibling_text": "hydraulic line defect", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Hydraulic faults — air, sluggish response, locking, leakage", "cross_family": true }, { "answer_id": "PHL-002", "score": 0.6725902557373047, "sibling_score": 0.6725902557373047, "answer_score": null, "sibling_qid": "MUM-2026-09-3863-Q007", "sibling_text": "how will you find out leak in a hydraulic system", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How is a hydraulic-oil leak detected?", "cross_family": true }, { "answer_id": "CPFE-583-007", "score": 0.6402234435081482, "sibling_score": 0.6402234435081482, "answer_score": 0.5900427758693695, "sibling_qid": "MUM-2022-09-2696-Q004", "sibling_text": "1 framo system type of pump hydraulic pressure not coming what to do", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Pressure not building — and purging the hydraulic system", "cross_family": true } ] }, { "qid": "CHE-2025-08-0405-Q002", "text": "How to take measurement using poker gauge?", "family": "Gauges & Tools", "subtopic": "Poker Gauge", "tid": "CHE-2025-08-0405", "tray": "review", "candidates": [ { "answer_id": "PROP-PN-C-002", "score": 0.7249823212623596, "sibling_score": 0.7249823212623596, "answer_score": null, "sibling_qid": "KOC-2026-05-2124-Q005", "sibling_text": "what are you measuring with poker gauge", "sibling_family": "Gauges & Tools", "via": "sibling", "answer_title": "Propeller drop — measurement and consequences", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.6405948400497437, "sibling_score": 0.6405948400497437, "answer_score": null, "sibling_qid": "KOC-2021-05-1760-Q003", "sibling_text": "rudder drop measurement using poker gauge ans by first unit on tdc the remove rope guard drain oil by removing both top and bottom plugs remove copper gasket and put poker gauge till the matching mark on poker gauge then press the measuring pin and lock it and take readings take on both top and bottom", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": true }, { "answer_id": "CSD-BF036-002", "score": 0.6371566653251648, "sibling_score": 0.6371566653251648, "answer_score": null, "sibling_qid": "KOL-2026-02-3920-Q004", "sibling_text": "trammel gauge how to take measurements 5", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "How do you take a crankshaft deflection — pre-checks, and instructing the 3/E?", "cross_family": true } ] }, { "qid": "CHE-2025-08-0406-Q002", "text": "oil in gauge glass action as 2e", "family": "Boilers - Operations & Firing", "subtopic": "Scum / Blow Down", "tid": "CHE-2025-08-0406", "tray": "review", "candidates": [ { "answer_id": "SBD-001", "score": 0.8047888875007629, "sibling_score": 0.8047888875007629, "answer_score": 0.4395435929298401, "sibling_qid": "CHE-2026-04-0507-Q002", "sibling_text": "oil in gauge glass action as 2e", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "You find oil in the boiler gauge glass — causes, how you identify the source, and your actions as 2/E (including if manoeuvring). What is carryover?", "cross_family": false }, { "answer_id": "CASC-COND-001", "score": 0.3614272326231003, "sibling_score": null, "answer_score": 0.3614272326231003, "sibling_qid": "", "sibling_text": "oil found in the cascade tank hotwell or observation tank actions tracing the source and preventing ingress first action is protection not diagnosis stop feeding contaminated water change over to clean feed or feed direct bypass the cascade tank inform the chief skim off and dump the oily water do not let it reach the feed pump", "sibling_family": "", "via": "answer_title", "answer_title": "Oil found in the cascade tank, hotwell or observation tank — actions, tracing the source, and preventing ingress", "cross_family": false }, { "answer_id": "OILRES-DISCH-TOPIC467-FINAL-003", "score": 0.3568791806697845, "sibling_score": null, "answer_score": 0.3568791806697845, "sibling_qid": "", "sibling_text": "joined the ship tank top floor and bilges are oily step by step cleaning as second engineer safety and source first risk assess as an enclosed space test the atmosphere then find and stop the oil source leaking gland flange drain coupling before cleaning cleaning without curing the leak is the classic fail inform the chief isolate and ventilate rig ppe non sparking tools absorbents drip trays and ", "sibling_family": "", "via": "answer_title", "answer_title": "Joined the ship, tank top, floor and bilges are oily — step-by-step cleaning as Second Engineer", "cross_family": false } ] }, { "qid": "CHE-2025-08-0406-Q006", "text": "honing and it purpose 2 more questions don't remember", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "CHE-2025-08-0406", "tray": "review", "candidates": [ { "answer_id": "CYL-LINER-P02-001", "score": 0.7627519965171814, "sibling_score": 0.7627519965171814, "answer_score": 0.37810332179069517, "sibling_qid": "CHE-2026-04-0507-Q006", "sibling_text": "honing and it purpose 2 more questions don t remember", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L1 · T044-PART_02-G001High", "cross_family": false }, { "answer_id": "CYL-LINER-P02-008", "score": 0.48603761196136475, "sibling_score": 0.48603761196136475, "answer_score": null, "sibling_qid": "CHE-2026-09-3909-Q003", "sibling_text": "liner honing", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L8 · T044-PART_02-G008High", "cross_family": false }, { "answer_id": "HT-TCS-B-003", "score": 0.42343074083328247, "sibling_score": 0.42343074083328247, "answer_score": 0.31103932708501814, "sibling_qid": "KOL-2021-04-1584-Q009", "sibling_text": "what metal is best for hardening which steel is good for hardening few more question was there but all are from material and composition part only", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Hardening — purpose, suitable materials and components", "cross_family": true } ] }, { "qid": "CHE-2025-08-0407-Q007", "text": "Economiser finned tube pipe leak how will u identify and plugging method", "family": "Boilers - Construction & Components", "subtopic": "Boiler Tubes / Economiser Tubes", "tid": "CHE-2025-08-0407", "tray": "review", "candidates": [ { "answer_id": "ECON-EGB-003", "score": 0.8095552325248718, "sibling_score": 0.8095552325248718, "answer_score": 0.562811866402626, "sibling_qid": "CHE-2026-04-0522-Q012", "sibling_text": "economiser finned tube pipe leak how will u identify and plugging method", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Economiser tube leak — indications, identification, plugging & action as 2/E", "cross_family": false }, { "answer_id": "BLR-TUBE-P02-002", "score": 0.7093109488487244, "sibling_score": 0.7093109488487244, "answer_score": 0.5654160439968109, "sibling_qid": "KOL-2024-06-3701-Q002", "sibling_text": "how to identify leaking boiler tube plug material how to rectify", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Plugging a leaking boiler tube (temporary arrest)", "cross_family": false }, { "answer_id": "EGB-001", "score": 0.6984484791755676, "sibling_score": 0.6984484791755676, "answer_score": null, "sibling_qid": "KOC-2024-12-1887-Q008", "sibling_text": "egb tube leaking how to plug", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "The exhaust gas boiler tubes are leaking — indications, how you confirm it, your action as 2/E, and what you do when plugging is not enough and the engine cannot be stopped.", "cross_family": false } ] }, { "qid": "CHE-2025-08-0408-Q002", "text": "Checks if fwg not getting production", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "CHE-2025-08-0408", "tray": "review", "candidates": [ { "answer_id": "FWG-RO-003", "score": 0.8996992707252502, "sibling_score": 0.8996992707252502, "answer_score": 0.3448411479592323, "sibling_qid": "CHE-2026-05-0533-Q008", "sibling_text": "checks if fwg not getting production", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "The FWG is not producing enough water or its efficiency has dropped. Reasons, checks and action?", "cross_family": false }, { "answer_id": "FWG-RO-001", "score": 0.42571842670440674, "sibling_score": 0.42571842670440674, "answer_score": null, "sibling_qid": "MUM-2024-06-1081-Q006", "sibling_text": "fwg vaccum not coming", "sibling_family": "Fresh Water & Domestic Systems", "via": "sibling", "answer_title": "How is vacuum created in the FWG, why does it run under vacuum, and what if the vacuum will not come?", "cross_family": true }, { "answer_id": "BOT-001", "score": 0.4069729745388031, "sibling_score": 0.4069729745388031, "answer_score": null, "sibling_qid": "CHE-2026-03-0357-Q005", "sibling_text": "blackout test produce", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "How do you carry out and demonstrate the blackout test in front of the surveyor — procedure, simulation, precautions before simulating, and what happens to machinery on the emergency switchboard?", "cross_family": true } ] }, { "qid": "CHE-2025-08-0410-Q002", "text": "checks you will take in ME during overhaul", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "CHE-2025-08-0410", "tray": "new", "candidates": [ { "answer_id": "CYL-LINER-P03-007", "score": 0.6146419644355774, "sibling_score": 0.6146419644355774, "answer_score": null, "sibling_qid": "KOL-2021-03-1582-Q003", "sibling_text": "checks in liner during overhaul", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Cylinder liner checks at overhaul, decarb and under-piston inspection", "cross_family": false }, { "answer_id": "CYL-LINER-P04-002", "score": 0.5409705638885498, "sibling_score": 0.5409705638885498, "answer_score": null, "sibling_qid": "MUM-2026-06-3450-Q005", "sibling_text": "you are doing maintenance of me how will you decide that liner need replacement", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Judging, measuring, removing & discarding a cylinder liner", "cross_family": false }, { "answer_id": "DCB-OVH-002", "score": 0.5327253341674805, "sibling_score": 0.5327253341674805, "answer_score": null, "sibling_qid": "KOC-2024-08-1855-Q001", "sibling_text": "major overhaul during ur time onboard", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Preparing for a complete unit overhaul or unit survey", "cross_family": true } ] }, { "qid": "CHE-2025-08-0410-Q008", "text": "Type of ships", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2025-08-0410", "tray": "review", "candidates": [ { "answer_id": "LLST-AB-001", "score": 0.8284794688224792, "sibling_score": 0.8284794688224792, "answer_score": 0.5265103876590729, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.7941863536834717, "sibling_score": 0.7941863536834717, "answer_score": 0.5289253354072571, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.7894187569618225, "sibling_score": 0.7894187569618225, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false } ] }, { "qid": "CHE-2025-08-0410-Q009", "text": "which company", "family": "Status & Introduction", "subtopic": "Company Introduction", "tid": "CHE-2025-08-0410", "tray": "new", "candidates": [ { "answer_id": "LLST-AB-002", "score": 0.6102150082588196, "sibling_score": 0.6102150082588196, "answer_score": null, "sibling_qid": "KOC-2026-03-0873-Q001", "sibling_text": "type of ship company", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false }, { "answer_id": "ETP-344-P03-001", "score": 0.5496751070022583, "sibling_score": 0.5496751070022583, "answer_score": null, "sibling_qid": "KOC-2026-05-0046-Q002", "sibling_text": "company and type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "EICU-MAN-P02-002", "score": 0.5450193285942078, "sibling_score": 0.5450193285942078, "answer_score": null, "sibling_qid": "KOC-2025-10-2078-Q002", "sibling_text": "mithsubshi uec manuering", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Manoeuvring on RT-flex, Sulzer RTA and Mitsubishi UEC", "cross_family": true } ] }, { "qid": "CHE-2025-08-0410-Q010", "text": "last rank sailed and when ?", "family": "__META__ (non-exam)", "subtopic": "", "tid": "CHE-2025-08-0410", "tray": "new", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.48732540011405945, "sibling_score": 0.48732540011405945, "answer_score": null, "sibling_qid": "CHE-2026-02-0478-Q004", "sibling_text": "this type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": true }, { "answer_id": "ANCH-CHN-A-001", "score": 0.4863507151603699, "sibling_score": 0.4863507151603699, "answer_score": null, "sibling_qid": "MUM-2025-03-2273-Q015", "sibling_text": "type of anchor last ship", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Types of anchor & holding characteristics", "cross_family": true }, { "answer_id": "ENG-NOM-005", "score": 0.4850090742111206, "sibling_score": 0.4850090742111206, "answer_score": null, "sibling_qid": "MUM-2026-05-3164-Q001", "sibling_text": "last ship sailed main engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "CHE-2025-08-0410-Q011", "text": "5 titles of MLC", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "CHE-2025-08-0410", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.5671620965003967, "sibling_score": 0.5671620965003967, "answer_score": 0.2727198272943497, "sibling_qid": "KOC-2026-05-2135-Q011", "sibling_text": "mlc titles explain title 1 explain dmlc part 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "MLC-WRH-B-006", "score": 0.4778004586696625, "sibling_score": 0.4778004586696625, "answer_score": 0.2401962324976921, "sibling_qid": "MUM-2026-06-3645-Q001", "sibling_text": "certificates of mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false }, { "answer_id": "ISMNC-002", "score": 0.431982159614563, "sibling_score": 0.431982159614563, "answer_score": null, "sibling_qid": "MUM-2026-01-0685-Q005", "sibling_text": "mlc mnc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a major non-conformity under the ISM Code? Give the definition and name some.", "cross_family": true } ] }, { "qid": "CHE-2025-08-0410-Q013", "text": "crankweb slip", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft Web / Journal / Shrink Fit", "tid": "CHE-2025-08-0410", "tray": "review", "candidates": [ { "answer_id": "CRANK-217-004", "score": 0.7843863368034363, "sibling_score": 0.7843863368034363, "answer_score": 0.44511672854423523, "sibling_qid": "CHE-2026-05-0560-Q024", "sibling_text": "crankweb slip", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankshaft slippage, tell-tale marks and action if found", "cross_family": false }, { "answer_id": "CRK-DEFL-001", "score": 0.6147640943527222, "sibling_score": 0.6147640943527222, "answer_score": null, "sibling_qid": "CHE-2026-05-0611-Q011", "sibling_text": "crankshaft slip", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Purpose, timing and scope of crankshaft deflection", "cross_family": false }, { "answer_id": "CRKC-INSP-003", "score": 0.6064794063568115, "sibling_score": 0.6064794063568115, "answer_score": null, "sibling_qid": "KOL-2022-09-3568-Q002", "sibling_text": "crank case inspection details how to check slippage of web and chain slackness", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Reference checks: piston rod, pinching screws, web slippage, stuffing box, chain slackness", "cross_family": false } ] }, { "qid": "CHE-2025-08-0411-Q002", "text": "How do you check load on a bearing ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Bearings / Lubrication", "tid": "CHE-2025-08-0411", "tray": "review", "candidates": [ { "answer_id": "ISB-435-002", "score": 0.7981445789337158, "sibling_score": 0.7981445789337158, "answer_score": 0.5848856925964355, "sibling_qid": "CHE-2026-05-0558-Q011", "sibling_text": "how do you check load on a bearing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Checking the load on an intermediate shaft bearing — jack placement, dial gauge, and reading the load", "cross_family": false }, { "answer_id": "MN-BRG-C-002", "score": 0.6733960509300232, "sibling_score": 0.6733960509300232, "answer_score": 0.5150802969932556, "sibling_qid": "KOL-2019-08-3268-Q003", "sibling_text": "bearing bedding how to check", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bedding, contact check and fitting of shells", "cross_family": false }, { "answer_id": "MAIN-BRG-D-004", "score": 0.6576683521270752, "sibling_score": 0.6576683521270752, "answer_score": null, "sibling_qid": "KOC-2025-05-2063-Q011", "sibling_text": "checks on main bearing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main bearing overhaul — jack-up, clearance check and tightening", "cross_family": false } ] }, { "qid": "CHE-2025-08-0411-Q003", "text": "Cross head survey how you will open up for surveyor ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Crosshead Bearing", "tid": "CHE-2025-08-0411", "tray": "review", "candidates": [ { "answer_id": "XHD-BRG-C-001", "score": 0.7876387238502502, "sibling_score": 0.7876387238502502, "answer_score": 0.4054548114538193, "sibling_qid": "CHE-2026-05-0558-Q012", "sibling_text": "cross head survey how you will open up for surveyor", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "A. Present the crosshead bottom shell for survey, piston in place", "cross_family": false }, { "answer_id": "CXH-BRG-FINAL-1-001", "score": 0.6527537703514099, "sibling_score": 0.6527537703514099, "answer_score": null, "sibling_qid": "KOL-2018-11-3199-Q001", "sibling_text": "cross head brg survey", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead bearing survey: open-up, removal & inspection", "cross_family": false }, { "answer_id": "XHEAD-303-007", "score": 0.6502086520195007, "sibling_score": 0.6502086520195007, "answer_score": 0.3630558758974075, "sibling_qid": "MUM-2026-03-1287-Q005", "sibling_text": "crosshead survey", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead inspection, survey and overhaul, including in-place overhaul", "cross_family": false } ] }, { "qid": "CHE-2025-08-0411-Q004", "text": "In dry dock how will you prepare for hot work ? What all fire safety you will take ?", "family": "Workshop & Welding", "subtopic": "Hot Work", "tid": "CHE-2025-08-0411", "tray": "review", "candidates": [ { "answer_id": "WBS-C-003", "score": 0.8141527771949768, "sibling_score": 0.8141527771949768, "answer_score": null, "sibling_qid": "CHE-2026-05-0558-Q013", "sibling_text": "in dry dock how will you prepare for hot work what all fire safety you will take", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Shipboard hot work — the permit, the designated area, and work near fuel tanks", "cross_family": false }, { "answer_id": "dus-p6-02", "score": 0.656893253326416, "sibling_score": 0.656893253326416, "answer_score": 0.6211845874786377, "sibling_qid": "KOL-2022-12-2630-Q003", "sibling_text": "in drydock what are source of fire", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Fire at the bottom platform of the engine room during drydock — action as 2E", "cross_family": true }, { "answer_id": "FIRE-P04-05", "score": 0.6560598611831665, "sibling_score": 0.6560598611831665, "answer_score": 0.6269350975751876, "sibling_qid": "MUM-2023-11-0149-Q006", "sibling_text": "fire on deck in drydock your actions as 2nd engineer step by step", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fire in dry dock / alongside repair — 2/E stepwise actions", "cross_family": true } ] }, { "qid": "CHE-2025-08-0412-Q004", "text": "Boiler safety valve how you confirm the proper setting of safety valve, engineer observation", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "CHE-2025-08-0412", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P01-001", "score": 0.8773561716079712, "sibling_score": 0.8773561716079712, "answer_score": null, "sibling_qid": "CHE-2026-05-0568-Q013", "sibling_text": "boiler safety valve how you confirm the proper setting of safety valve engineer observation", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.7779985070228577, "sibling_score": 0.7779985070228577, "answer_score": null, "sibling_qid": "MUM-2026-05-3281-Q004", "sibling_text": "setting of boiler safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "ECON-EGB-004", "score": 0.6287917286157608, "sibling_score": null, "answer_score": 0.6287917286157608, "sibling_qid": "", "sibling_text": "safety valve setting after overhaul why set higher than the boiler setting raise pressure under steam on a calibrated gauge adjust spring compression to lift at the approved set pressure verify re seat and blowdown two valves one at a time the other gagged lock and seal surveyor witnessed values are class approved ship specific set pressure accumulation representative limit and blowdown quote the ", "sibling_family": "", "via": "answer_title", "answer_title": "Safety-valve setting after overhaul & why set higher than the boiler", "cross_family": false } ] }, { "qid": "CHE-2025-08-0414-Q004", "text": "Evaporator parameters what you check", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "CHE-2025-08-0414", "tray": "new", "candidates": [ { "answer_id": "CMPB-561-001", "score": 0.6034162044525146, "sibling_score": 0.6034162044525146, "answer_score": null, "sibling_qid": "MUM-2026-06-3523-Q004", "sibling_text": "boiler type and evaporation rate", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Double-evaporation boiler — what it is, and how it differs from a composite boiler", "cross_family": true }, { "answer_id": "ACJCW-008", "score": 0.5812970399856567, "sibling_score": 0.5812970399856567, "answer_score": null, "sibling_qid": "KOL-2022-04-1916-Q003", "sibling_text": "shell and tube type cooler leak detection check accepted tell tale hole check what is inside the tube and what is outside the tube why expansion arrangement sealing material no of seals", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Shell-and-tube cooler: leak detection, tube-side flow, expansion and sealing", "cross_family": false }, { "answer_id": "PTHE-005", "score": 0.5757604241371155, "sibling_score": 0.5757604241371155, "answer_score": null, "sibling_qid": "MUM-2026-05-3323-Q008", "sibling_text": "how to check heat exchange is efficient and what provision giving on it to check", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Confirming a heat exchanger is at good efficiency", "cross_family": false } ] }, { "qid": "CHE-2025-08-0416-Q002", "text": "If aux engine not rotating by what are all the possible causes", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE 4-Stroke Theory", "tid": "CHE-2025-08-0416", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-007", "score": 0.7144140601158142, "sibling_score": 0.7144140601158142, "answer_score": null, "sibling_qid": "MUM-2025-12-1227-Q013", "sibling_text": "aux engine bearing nip and crush why bearing dont rotate many cross on this", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE big-end / bottom-end bearing — inspection, bedding, nip and crush", "cross_family": false }, { "answer_id": "SAV-002", "score": 0.6493328809738159, "sibling_score": 0.6493328809738159, "answer_score": null, "sibling_qid": "KOC-2021-12-1771-Q006", "sibling_text": "auxiliary engine not turning on air only oscillates not the one with starter type he was asking about starting air valve mounted type he said on the air distributor there will be two disc one has only one hole another has multiple holes one of them is stationary and the other is rotary the gap between this two disc increased which cause starting air to leak out instead of going into the unit", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Identifying and testing a leaking starting air valve", "cross_family": true }, { "answer_id": "SAV-005", "score": 0.6402053236961365, "sibling_score": 0.6402053236961365, "answer_score": null, "sibling_qid": "MUM-2026-06-3650-Q001", "sibling_text": "auxiliary engine not starting in air", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "How air is admitted, and faults that stop starting air admission", "cross_family": true } ] }, { "qid": "CHE-2025-08-0416-Q003", "text": "Aux engine cylinder liner calibration procedure and what u will find in calibration", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE Conrod / Piston", "tid": "CHE-2025-08-0416", "tray": "review", "candidates": [ { "answer_id": "CYL-LINER-P01-001", "score": 0.8290539383888245, "sibling_score": 0.8290539383888245, "answer_score": 0.5949471473693847, "sibling_qid": "CHE-2026-05-0581-Q009", "sibling_text": "aux engine cylinder liner calibration procedure and what u will find in calibration", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Carrying out main-engine liner calibration (gauging)", "cross_family": false }, { "answer_id": "AE-CRP-001", "score": 0.651501476764679, "sibling_score": 0.651501476764679, "answer_score": null, "sibling_qid": "KOL-2021-11-3482-Q006", "sibling_text": "a e complete overhaul and all calibration what s the criteria for piston ring discard and all clearances also", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE piston overhaul — removal, ring handling and refit", "cross_family": false }, { "answer_id": "CYL-LINER-P01-002", "score": 0.6490103006362915, "sibling_score": 0.6490103006362915, "answer_score": null, "sibling_qid": "MUM-2023-07-2181-Q006", "sibling_text": "liner calibration of main engine how you carry out precautions to take calibration of inside micrometre how is it carried out", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Getting true readings: tool, position and temperature", "cross_family": true } ] }, { "qid": "CHE-2025-08-0419-Q002", "text": "How will u calculate load bearing capacity", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Bearings / Lubrication", "tid": "CHE-2025-08-0419", "tray": "new", "candidates": [ { "answer_id": "ISB-435-002", "score": 0.5986272096633911, "sibling_score": 0.5986272096633911, "answer_score": 0.4366380155086517, "sibling_qid": "KOL-2021-09-3458-Q002", "sibling_text": "intermediate bearing load where all you put jacks and dial gauge how you decide load", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Checking the load on an intermediate shaft bearing — jack placement, dial gauge, and reading the load", "cross_family": false }, { "answer_id": "XHD-BRG-C-005", "score": 0.5657978653907776, "sibling_score": 0.5657978653907776, "answer_score": null, "sibling_qid": "KOL-2025-07-1991-Q003", "sibling_text": "crosshead bearing load maximum and minimum at what positions think and tell only one chance", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "E. Crosshead bearing design specialities: load max/min position, large pin, oil grooves, why no separate pump", "cross_family": false }, { "answer_id": "BDC-P04-03", "score": 0.5400716066360474, "sibling_score": 0.5400716066360474, "answer_score": null, "sibling_qid": "KOC-2025-06-1539-Q008", "sibling_text": "how will you decide the load", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "Battery load test on board — preparation, deciding the load, and reading the result", "cross_family": true } ] }, { "qid": "CHE-2025-08-0420-Q006", "text": "honning in cylinder liner. Po then came", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "CHE-2025-08-0420", "tray": "new", "candidates": [ { "answer_id": "CYL-LINER-P04-002", "score": 0.6212267875671387, "sibling_score": 0.6212267875671387, "answer_score": 0.4138144388794899, "sibling_qid": "KOL-2021-11-3490-Q002", "sibling_text": "me cylinder liner o h", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Judging, measuring, removing & discarding a cylinder liner", "cross_family": false }, { "answer_id": "CYL-LINER-P02-001", "score": 0.6005001664161682, "sibling_score": 0.6005001664161682, "answer_score": null, "sibling_qid": "KOL-2021-08-3446-Q002", "sibling_text": "how honing is done in liner", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L1 · T044-PART_02-G001High", "cross_family": false }, { "answer_id": "CYL-LINER-P02-004", "score": 0.5832179188728333, "sibling_score": 0.5832179188728333, "answer_score": null, "sibling_qid": "KOL-2020-02-1517-Q002", "sibling_text": "one unit cylinder liner found oval causes n remedy", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L4 · T044-PART_02-G004High", "cross_family": false } ] }, { "qid": "CHE-2025-08-0420-Q007", "text": "zero setting in fuel pump.", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Pump Overhaul", "tid": "CHE-2025-08-0420", "tray": "review", "candidates": [ { "answer_id": "FP-OVHL-005", "score": 0.833760678768158, "sibling_score": 0.833760678768158, "answer_score": 0.61922287940979, "sibling_qid": "KOL-2018-08-1410-Q003", "sibling_text": "zero setting of fuel pump", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel pump zero setting — what it is, why, and how to set it", "cross_family": false }, { "answer_id": "COS343-003", "score": 0.6071362853050232, "sibling_score": null, "answer_score": 0.6071362853050232, "sibling_qid": "", "sibling_text": "what is the zero fuel zero delivery setting of a fuel pump and how is it done zero delivery zero fuel setting the rack index position giving no fuel delivery purpose all pumps reach zero and begin delivery together clean common stop on the handle and even load sharing", "sibling_family": "", "via": "answer_title", "answer_title": "What is the zero-fuel / zero-delivery setting of a fuel pump, and how is it done?", "cross_family": false }, { "answer_id": "ASTERN-004", "score": 0.5062770813703537, "sibling_score": null, "answer_score": 0.5062770813703537, "sibling_qid": "", "sibling_text": "ensuring fuel injection stops after a stop command before the next astern movement stop fuel actuator lever to zero pump racks off delivery puncture spill valve opens on stop dumps the delivery to suction so no injection pressure builds even while the plunger moves", "sibling_family": "", "via": "answer_title", "answer_title": "Ensuring fuel injection stops after a stop command, before the next astern movement", "cross_family": false } ] }, { "qid": "CHE-2025-08-0421-Q002", "text": "Boiler safety valve setting", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "CHE-2025-08-0421", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-001", "score": 0.8647704720497131, "sibling_score": 0.8647704720497131, "answer_score": null, "sibling_qid": "CHE-2026-04-0500-Q005", "sibling_text": "boiler safety valve setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.8231942057609558, "sibling_score": 0.8231942057609558, "answer_score": null, "sibling_qid": "MUM-2026-03-2935-Q013", "sibling_text": "boiler safety valve setting in presence of surveyor after survey", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.8126317858695984, "sibling_score": 0.8126317858695984, "answer_score": null, "sibling_qid": "KOC-2026-05-0034-Q010", "sibling_text": "boiler safety valve types and how safety valve is set complete procedures", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "CHE-2025-08-0421-Q004", "text": "What is sensing bulb, thermostat.", "family": "Refrigeration & AC", "subtopic": "Thermostatic Valve", "tid": "CHE-2025-08-0421", "tray": "review", "candidates": [ { "answer_id": "TEV-TXV-006", "score": 0.7999332547187805, "sibling_score": 0.7999332547187805, "answer_score": 0.51217542886734, "sibling_qid": "CHE-2026-05-0597-Q016", "sibling_text": "what is sensing bulb thermostat", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "TEV sensing bulb — function, fitting and bulb faults", "cross_family": false }, { "answer_id": "AUC-SEN-06", "score": 0.584407389163971, "sibling_score": 0.584407389163971, "answer_score": 0.4949656456708908, "sibling_qid": "KOL-2025-08-2843-Q004", "sibling_text": "thermistor thermostat", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Thermistor versus thermostat — bimetallic and wax-element principles", "cross_family": true }, { "answer_id": "FIRE-P02-06", "score": 0.5400964021682739, "sibling_score": 0.5400964021682739, "answer_score": 0.42407084852457044, "sibling_qid": "KOC-2025-01-0501-Q005", "sibling_text": "sprinkler system where it normally used types of bulb and temperature", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Sprinkler heads, bulbs and temperature ratings", "cross_family": true } ] }, { "qid": "CHE-2025-08-0421-Q005", "text": "what is master solenoid valve in reefer Po deciding", "family": "Refrigeration & AC", "subtopic": "Refrigerant Handling / Expansion Valve / Compressor Control Circuit", "tid": "CHE-2025-08-0421", "tray": "review", "candidates": [ { "answer_id": "REF-CYC-002", "score": 0.7576465606689453, "sibling_score": 0.7576465606689453, "answer_score": 0.46465558409690855, "sibling_qid": "CHE-2026-05-0597-Q017", "sibling_text": "what is master solenoid valve in reefer p o deciding question", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "2. Refrigeration plant components and their control functions", "cross_family": false }, { "answer_id": "RAC-MAT-320-007", "score": 0.614339292049408, "sibling_score": 0.614339292049408, "answer_score": 0.5015917301177978, "sibling_qid": "KOL-2021-07-1603-Q008", "sibling_text": "ac master controller valve", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "7. Automatic temperature and humidity control, and the master controller", "cross_family": false }, { "answer_id": "BPV-315-001", "score": 0.5887568593025208, "sibling_score": 0.5887568593025208, "answer_score": null, "sibling_qid": "KOL-2021-12-1648-Q008", "sibling_text": "back pr valve in reefer", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Back pressure valve — purpose, location and operation", "cross_family": false } ] }, { "qid": "CHE-2025-08-0421-Q007", "text": "Boiler safety valve, how the setting is done.", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "CHE-2025-08-0421", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-001", "score": 0.8052905201911926, "sibling_score": 0.8052905201911926, "answer_score": null, "sibling_qid": "CHE-2026-05-0597-Q020", "sibling_text": "boiler safety valve how the setting is done", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.7753781676292419, "sibling_score": 0.7753781676292419, "answer_score": null, "sibling_qid": "MUM-2026-03-2935-Q013", "sibling_text": "boiler safety valve setting in presence of surveyor after survey", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.7566418647766113, "sibling_score": 0.7566418647766113, "answer_score": null, "sibling_qid": "KOC-2026-05-0034-Q010", "sibling_text": "boiler safety valve types and how safety valve is set complete procedures", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "CHE-2025-08-0421-Q008", "text": "What is operating Pr, Testing Pr and design pr(explain)", "family": "", "subtopic": "Bulkhead Types", "tid": "CHE-2025-08-0421", "tray": "new", "candidates": [ { "answer_id": "PRING-CLR-A-001", "score": 0.459509015083313, "sibling_score": 0.459509015083313, "answer_score": null, "sibling_qid": "KOL-2021-07-1905-Q003", "sibling_text": "what is cpr design aspect function", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston-ring types — CPR, POP, the PC ring, and the pinned gap", "cross_family": false }, { "answer_id": "ACCT-583-A-001", "score": 0.4515302777290344, "sibling_score": 0.4515302777290344, "answer_score": null, "sibling_qid": "MUM-2026-01-2527-Q001", "sibling_text": "accumulation of pr test", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Explain the boiler accumulation pressure test — what it is, its purpose, and how it is carried out (including when and at what interval)", "cross_family": false }, { "answer_id": "PIST-CSI-B-001", "score": 0.45112043619155884, "sibling_score": 0.45112043619155884, "answer_score": null, "sibling_qid": "KOL-2016-12-3018-Q002", "sibling_text": "piston o haul pr testing", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Main-engine piston — construction and the checks expected", "cross_family": false } ] }, { "qid": "CHE-2025-08-0423-Q002", "text": "Refer oil charging procedure", "family": "Refrigeration & AC", "subtopic": "Refrigeration Lubricating Oil / Flock Point / Oil Charging", "tid": "CHE-2025-08-0423", "tray": "review", "candidates": [ { "answer_id": "REEF-COMP-004", "score": 0.8542319536209106, "sibling_score": 0.8542319536209106, "answer_score": 0.5991455674171448, "sibling_qid": "MUM-2026-01-1242-Q011", "sibling_text": "refer oil charging method", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Charging, replenishing and draining compressor lube oil — including with no charging pump", "cross_family": false }, { "answer_id": "REEF-CHG-001", "score": 0.7159152626991272, "sibling_score": 0.7159152626991272, "answer_score": null, "sibling_qid": "CHE-2026-03-0253-Q006", "sibling_text": "refer gas charging procedure", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "01Charging or replenishing the refrigerant in a refrigeration / AC plant", "cross_family": false }, { "answer_id": "REEF-CHG-002", "score": 0.7091476917266846, "sibling_score": 0.7091476917266846, "answer_score": null, "sibling_qid": "MUM-2026-05-3078-Q010", "sibling_text": "full procedure for gas and liquid charging", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "02Where and how gas and liquid refrigerant are charged into the system", "cross_family": false } ] }, { "qid": "CHE-2025-08-0424-Q004", "text": "Crankshaft slip", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft Web / Journal / Shrink Fit", "tid": "CHE-2025-08-0424", "tray": "review", "candidates": [ { "answer_id": "CRK-DEFL-001", "score": 0.7990594506263733, "sibling_score": 0.7990594506263733, "answer_score": null, "sibling_qid": "CHE-2026-05-0611-Q011", "sibling_text": "crankshaft slip", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Purpose, timing and scope of crankshaft deflection", "cross_family": false }, { "answer_id": "CRANK-217-004", "score": 0.7852486968040466, "sibling_score": 0.7852486968040466, "answer_score": 0.5487426400184631, "sibling_qid": "MUM-2026-02-2570-Q003", "sibling_text": "semi built crank shaft slippage", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankshaft slippage, tell-tale marks and action if found", "cross_family": false }, { "answer_id": "CSD-BF036-006", "score": 0.6759756207466125, "sibling_score": 0.6759756207466125, "answer_score": 0.48370806574821473, "sibling_qid": "MUM-2026-01-1244-Q002", "sibling_text": "crankshaft deflection", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Explain crankshaft deflection.", "cross_family": false } ] }, { "qid": "CHE-2025-08-0426-Q004", "text": "Double bottom tank regulation, how it is constructed, and how it is strengthened", "family": "SOLAS", "subtopic": "Double Bottom / Torsion Box", "tid": "CHE-2025-08-0426", "tray": "new", "candidates": [ { "answer_id": "DBTB-A-002", "score": 0.6067311763763428, "sibling_score": 0.6067311763763428, "answer_score": 0.4530008494853973, "sibling_qid": "MUM-2024-10-0214-Q003", "sibling_text": "construction of double bottom tank", "sibling_family": "", "via": "sibling", "answer_title": "Double-bottom tanks: purpose, advantages, disadvantages and stability effect", "cross_family": false }, { "answer_id": "COT-09", "score": 0.5814133882522583, "sibling_score": 0.5814133882522583, "answer_score": 0.47532100379467007, "sibling_qid": "MUM-2026-09-3920-Q005", "sibling_text": "double bottom tank construction and it s info in stability book", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Ballast-tank construction", "cross_family": true }, { "answer_id": "DBTB-A-001", "score": 0.5413853526115417, "sibling_score": 0.5413853526115417, "answer_score": 0.5140784680843353, "sibling_qid": "CHE-2026-02-0107-Q003", "sibling_text": "double bottom construction", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Double-bottom construction and the structural members fitted", "cross_family": true } ] }, { "qid": "CHE-2025-08-0426-Q006", "text": "Management Committee on-board why it is , who are all the members PO", "family": "Risk & Safety Management", "subtopic": "Safety Meeting / Committee", "tid": "CHE-2025-08-0426", "tray": "new", "candidates": [ { "answer_id": "IMO-CC-P01-001", "score": 0.4865565001964569, "sibling_score": 0.4865565001964569, "answer_score": 0.3298619717359543, "sibling_qid": "KOL-2026-07-4278-Q005", "sibling_text": "imo structure all names of committee and sub committee srinivasan decider", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Explain the structure and organs of IMO — Assembly, Council, Committees and Secretariat.", "cross_family": true }, { "answer_id": "IMO-CODES-P03-002", "score": 0.4614883065223694, "sibling_score": 0.4614883065223694, "answer_score": 0.3244502007961273, "sibling_qid": "KOL-2017-01-0050-Q002", "sibling_text": "imo committees", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": true }, { "answer_id": "IMO-CC-P01-003", "score": 0.44929367303848267, "sibling_score": 0.44929367303848267, "answer_score": 0.31710524559020997, "sibling_qid": "KOL-2024-12-0899-Q004", "sibling_text": "function of each committee", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Name the IMO Committees and Sub-Committees (MSC, MEPC, FAL …) and state their functions.", "cross_family": true } ] }, { "qid": "CHE-2025-08-0426-Q007", "text": "Marine insurance", "family": "", "subtopic": "", "tid": "CHE-2025-08-0426", "tray": "review", "candidates": [ { "answer_id": "CLC-CIV-B-004", "score": 0.8019766211509705, "sibling_score": 0.8019766211509705, "answer_score": 0.5904928743839264, "sibling_qid": "CHE-2026-05-0608-Q010", "sibling_text": "marine insurance", "sibling_family": "Marine Insurance", "via": "sibling", "answer_title": "Marine insurance and the P&I club: hull cover vs liability cover", "cross_family": false }, { "answer_id": "CLC-CIV-B-002", "score": 0.6913943886756897, "sibling_score": 0.6913943886756897, "answer_score": null, "sibling_qid": "KOL-2021-01-0463-Q003", "sibling_text": "what are the liabilities and responsibilities of the covered in maritime insurance he asked one more question from maritime insurance in short form which i can t remember", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "The civil-liability map: which compensation convention applies to what", "cross_family": false }, { "answer_id": "MSB-ESB-B-002", "score": 0.5047851800918579, "sibling_score": null, "answer_score": 0.5047851800918579, "sibling_qid": "", "sibling_text": "msb maintenance at sea at anchorage", "sibling_family": "", "via": "answer_title", "answer_title": "MSB maintenance at sea & at anchorage", "cross_family": false } ] }, { "qid": "CHE-2025-08-0426-Q008", "text": "Hull and machinery Insurance", "family": "", "subtopic": "", "tid": "CHE-2025-08-0426", "tray": "review", "candidates": [ { "answer_id": "CLC-CIV-B-004", "score": 0.7479975819587708, "sibling_score": 0.7479975819587708, "answer_score": 0.5446355164051055, "sibling_qid": "CHE-2026-05-0608-Q011", "sibling_text": "hull and machinery insurance", "sibling_family": "Marine Insurance", "via": "sibling", "answer_title": "Marine insurance and the P&I club: hull cover vs liability cover", "cross_family": false }, { "answer_id": "INS-CLASS-003", "score": 0.5719441175460815, "sibling_score": 0.5719441175460815, "answer_score": null, "sibling_qid": "KOL-2018-12-2247-Q006", "sibling_text": "type of insulation which machinery on ur ship having highest insulation if u tell steering gear motor he will be satisfied", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Which motor or machinery on your ship has the highest insulation class, and why?", "cross_family": false }, { "answer_id": "UMS-310-003", "score": 0.5702981948852539, "sibling_score": 0.5702981948852539, "answer_score": null, "sibling_qid": "KOL-2019-03-3226-Q001", "sibling_text": "safeties for machinery in ums class vessel", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Machinery and fire-safety features required for the UMS condition", "cross_family": false } ] }, { "qid": "CHE-2025-08-0426-Q010", "text": "Who will issue that certificate( he himself told P&I Club or other insurance provider", "family": "", "subtopic": "", "tid": "CHE-2025-08-0426", "tray": "review", "candidates": [ { "answer_id": "IAPP-595-003", "score": 0.8305014967918396, "sibling_score": 0.8305014967918396, "answer_score": null, "sibling_qid": "CHE-2026-05-0608-Q013", "sibling_text": "who will issue that certificate he himself told p i club or other insurance provider", "sibling_family": "Marine Insurance", "via": "sibling", "answer_title": "Under which regulation does the IAPP certificate come, and who issues it?", "cross_family": false }, { "answer_id": "ISM-SMC-B-005", "score": 0.550032377243042, "sibling_score": 0.550032377243042, "answer_score": null, "sibling_qid": "CHE-2025-12-0097-Q004", "sibling_text": "ism who will issue certificate and validity", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Obtaining the DOC and SMC — who issues, who audits", "cross_family": false }, { "answer_id": "CLC-CIV-B-004", "score": 0.539016842842102, "sibling_score": 0.539016842842102, "answer_score": null, "sibling_qid": "KOL-2025-09-1038-Q006", "sibling_text": "mlc certificate p i club marine insurance", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Marine insurance and the P&I club: hull cover vs liability cover", "cross_family": false } ] }, { "qid": "CHE-2025-08-0426-Q011", "text": "P&I Club, why is it there.", "family": "", "subtopic": "", "tid": "CHE-2025-08-0426", "tray": "new", "candidates": [ { "answer_id": "CLC-CIV-B-004", "score": 0.5692099332809448, "sibling_score": 0.5692099332809448, "answer_score": 0.2001039631664753, "sibling_qid": "KOL-2018-09-0220-Q004", "sibling_text": "p i club functioning purpose what all things it covers", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Marine insurance and the P&I club: hull cover vs liability cover", "cross_family": false }, { "answer_id": "PI-211-003", "score": 0.373884379863739, "sibling_score": 0.373884379863739, "answer_score": null, "sibling_qid": "KOL-2024-11-2747-Q002", "sibling_text": "pi index why do we require it", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "PI versus insulation resistance, and why the 1-minute and 10-minute readings are compared", "cross_family": false }, { "answer_id": "PI-211-001", "score": 0.3713698387145996, "sibling_score": 0.3713698387145996, "answer_score": null, "sibling_qid": "KOL-2023-05-2659-Q001", "sibling_text": "pi why checked", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What polarization index is, why we use it, and the value expected", "cross_family": false } ] }, { "qid": "CHE-2025-08-0426-Q012", "text": "OCIMF why and how they function. Internal Po sir External T.mohan sir 4b", "family": "", "subtopic": "", "tid": "CHE-2025-08-0426", "tray": "new", "candidates": [ { "answer_id": "EECS-003", "score": 0.4093784689903259, "sibling_score": 0.4093784689903259, "answer_score": null, "sibling_qid": "CHE-2025-12-0327-Q014", "sibling_text": "cii and eexi internal po", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "03. Explain EEXI and CII, including how each is calculated", "cross_family": false }, { "answer_id": "ISM-AUD-P02-002", "score": 0.39454925060272217, "sibling_score": 0.39454925060272217, "answer_score": null, "sibling_qid": "KOC-2026-01-2087-Q013", "sibling_text": "what is the purpose of ism internal", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM Code — what it is, purpose, objectives and structure", "cross_family": false }, { "answer_id": "IMO-CODES-P03-002", "score": 0.36300840973854065, "sibling_score": 0.36300840973854065, "answer_score": 0.2632919758558273, "sibling_qid": "KOL-2019-08-0319-Q002", "sibling_text": "function of imo assembly", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": false } ] }, { "qid": "CHE-2025-08-0427-Q001", "text": "Boiler tubes type.", "family": "Boilers - Construction & Components", "subtopic": "Boiler Tubes", "tid": "CHE-2025-08-0427", "tray": "review", "candidates": [ { "answer_id": "BLR-TUBE-P01-002", "score": 0.8444897532463074, "sibling_score": 0.8444897532463074, "answer_score": 0.5945740580558777, "sibling_qid": "CHE-2026-05-0607-Q004", "sibling_text": "boiler tubes type", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "03. Types, functions and arrangement of boiler tubes", "cross_family": false }, { "answer_id": "BLR-TUBE-P01-001", "score": 0.8018134832382202, "sibling_score": 0.8018134832382202, "answer_score": 0.5309033066034317, "sibling_qid": "KOL-2018-08-1409-Q005", "sibling_text": "in boiler what are all types of tubes fitted", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "01. Attaching, fitting and supporting boiler tubes", "cross_family": false }, { "answer_id": "BLR-TUBE-P01-004", "score": 0.771837592124939, "sibling_score": 0.771837592124939, "answer_score": 0.5607183814048767, "sibling_qid": "MUM-2026-06-3408-Q004", "sibling_text": "types of boiler and tube material", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "04. Tube material, dimensions and thickness checks", "cross_family": false } ] }, { "qid": "CHE-2025-08-0427-Q002", "text": "Stay tubes placement.", "family": "Boilers - Construction & Components", "subtopic": "Boiler Tubes", "tid": "CHE-2025-08-0427", "tray": "new", "candidates": [ { "answer_id": "BLR-TUBE-P01-002", "score": 0.5585383772850037, "sibling_score": 0.5585383772850037, "answer_score": null, "sibling_qid": "CHE-2026-05-0614-Q005", "sibling_text": "stay tubes in boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "03. Types, functions and arrangement of boiler tubes", "cross_family": false }, { "answer_id": "SH-332-002", "score": 0.5049904584884644, "sibling_score": 0.5049904584884644, "answer_score": null, "sibling_qid": "MUM-2024-07-0960-Q007", "sibling_text": "sh tubes expansion arrangement", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Where superheater tubes are fitted; attachment, support and expansion", "cross_family": false }, { "answer_id": "STS-P02-003", "score": 0.4628617763519287, "sibling_score": 0.4628617763519287, "answer_score": null, "sibling_qid": "KOL-2019-03-0267-Q003", "sibling_text": "stern tube how fitted arrangements", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "STS-P02-03 - Stern tube arrangement, fitting in hull and shaft support", "cross_family": true } ] }, { "qid": "CHE-2025-08-0428-Q003", "text": "air removal from refer system.pressure gauge type", "family": "Refrigeration & AC", "subtopic": "Air in System", "tid": "CHE-2025-08-0428", "tray": "review", "candidates": [ { "answer_id": "AIR-REF-004", "score": 0.7027006149291992, "sibling_score": 0.7027006149291992, "answer_score": null, "sibling_qid": "MUM-2026-06-3471-Q003", "sibling_text": "refer air indication purging", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "4. Detecting and purging air from a refrigeration system", "cross_family": false }, { "answer_id": "AIR-REF-001", "score": 0.685218870639801, "sibling_score": 0.685218870639801, "answer_score": null, "sibling_qid": "MUM-2024-09-2241-Q003", "sibling_text": "air in refer indication and removal", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "1. Indications that air is present in a refrigeration system", "cross_family": false }, { "answer_id": "AIR-REF-002", "score": 0.6652291417121887, "sibling_score": 0.6652291417121887, "answer_score": null, "sibling_qid": "MUM-2026-05-3257-Q004", "sibling_text": "indications of air in ref system", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "2. How air enters a refrigeration system", "cross_family": false } ] }, { "qid": "CHE-2025-08-0429-Q001", "text": "How will you prepare crossed bearing for survey", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Crosshead Bearing", "tid": "CHE-2025-08-0429", "tray": "review", "candidates": [ { "answer_id": "XHD-BRG-C-001", "score": 0.7748888731002808, "sibling_score": 0.7748888731002808, "answer_score": 0.41768128871917726, "sibling_qid": "CHE-2026-05-0624-Q004", "sibling_text": "how will you prepare crossed bearing for survey", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "A. Present the crosshead bottom shell for survey, piston in place", "cross_family": false }, { "answer_id": "MAIN-BRG-A-001", "score": 0.6264638304710388, "sibling_score": 0.6264638304710388, "answer_score": null, "sibling_qid": "KOL-2021-12-3496-Q002", "sibling_text": "main bearing survey and cross question", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How is a main bearing surveyed, inspected or condition-monitored?", "cross_family": false }, { "answer_id": "CXH-BRG-FINAL-1-001", "score": 0.616815984249115, "sibling_score": 0.616815984249115, "answer_score": 0.37959907352924344, "sibling_qid": "KOL-2017-09-3096-Q003", "sibling_text": "cross head bearing survey procedure", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead bearing survey: open-up, removal & inspection", "cross_family": false } ] }, { "qid": "CHE-2025-08-0429-Q003", "text": "How will you measure main engine liner calibration and what are all pre check to do.", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "CHE-2025-08-0429", "tray": "review", "candidates": [ { "answer_id": "CYL-LINER-P01-002", "score": 0.8151664137840271, "sibling_score": 0.8151664137840271, "answer_score": null, "sibling_qid": "CHE-2026-05-0624-Q006", "sibling_text": "how will you measure main engine liner calibration and what are all pre check to do", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Getting true readings: tool, position and temperature", "cross_family": false }, { "answer_id": "CYL-LINER-P01-001", "score": 0.7207223773002625, "sibling_score": 0.7207223773002625, "answer_score": 0.6015453666448592, "sibling_qid": "KOL-2019-05-3237-Q001", "sibling_text": "main engine liner calibration", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Carrying out main-engine liner calibration (gauging)", "cross_family": false }, { "answer_id": "CYL-LINER-P03-007", "score": 0.5285848736763, "sibling_score": null, "answer_score": 0.5285848736763, "sibling_qid": "", "sibling_text": "cylinder liner checks at overhaul decarb and under piston inspection gauge the bore inside micrometer and extension bar through a template several heights over the ring swept length fore aft and port starboard liner cold or temperature corrected compare with the last record total wear and the wear rate", "sibling_family": "", "via": "answer_title", "answer_title": "Cylinder liner checks at overhaul, decarb and under-piston inspection", "cross_family": false } ] }, { "qid": "CHE-2025-08-0434-Q004", "text": "Castiron welding( mainly surface preparation how u r doing, welding electrode and all)", "family": "Workshop & Welding", "subtopic": "Cast Iron Welding", "tid": "CHE-2025-08-0434", "tray": "review", "candidates": [ { "answer_id": "WELD-B-001", "score": 0.7661520838737488, "sibling_score": 0.7661520838737488, "answer_score": 0.5177347838878631, "sibling_qid": "MUM-2026-06-3641-Q001", "sibling_text": "cast iron welding which electrode", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding & crack-repair of aluminium and cast iron, including metal stitching", "cross_family": false }, { "answer_id": "WELD-B-006", "score": 0.7120268940925598, "sibling_score": 0.7120268940925598, "answer_score": 0.5181630969047546, "sibling_qid": "KOC-2025-06-1916-Q010", "sibling_text": "what welding electrodes will you use and step by step preparation for welding", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding electrodes — selection, storage and handling", "cross_family": false }, { "answer_id": "LH-ELEC-001", "score": 0.7001998424530029, "sibling_score": 0.7001998424530029, "answer_score": null, "sibling_qid": "MUM-2026-06-3451-Q014", "sibling_text": "ci welding electrodes", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "1. Where are low-hydrogen electrodes used onboard?", "cross_family": false } ] }, { "qid": "CHE-2025-08-0435-Q003", "text": "Countershunk screw", "family": "Workshop & Welding", "subtopic": "Nut-Bolt Loosening / Locking Arrangements", "tid": "CHE-2025-08-0435", "tray": "new", "candidates": [ { "answer_id": "BBR-005", "score": 0.576316237449646, "sibling_score": 0.576316237449646, "answer_score": 0.4076741710305214, "sibling_qid": "KOC-2024-11-1016-Q004", "sibling_text": "pinching screws", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "What are pinching (jacking) screws and how are they used in workshop removal/holding work?", "cross_family": false }, { "answer_id": "WTGS-325-003", "score": 0.5566701889038086, "sibling_score": 0.5566701889038086, "answer_score": null, "sibling_qid": "KOL-2016-08-2995-Q002", "sibling_text": "screw driver twisted what to do", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Ordering hand tools: hammer, file, screwdriver, chisel, hacksaw", "cross_family": false }, { "answer_id": "LATHE-TD-003", "score": 0.505367636680603, "sibling_score": 0.505367636680603, "answer_score": null, "sibling_qid": "KOL-2021-11-3489-Q003", "sibling_text": "small stud how to thread made", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Thread cutting — lathe, taps & dies, TPI and tapping-drill size", "cross_family": false } ] }, { "qid": "CHE-2025-08-0438-Q006", "text": "Oil in boiler gauge glass. Actions .", "family": "Boilers - Operations & Firing", "subtopic": "Scum / Blow Down", "tid": "CHE-2025-08-0438", "tray": "review", "candidates": [ { "answer_id": "SBD-001", "score": 0.8358178734779358, "sibling_score": 0.8358178734779358, "answer_score": 0.6000584304332733, "sibling_qid": "KOL-2016-11-3017-Q005", "sibling_text": "by bnd oil in boiler gauge glass course of actions", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "You find oil in the boiler gauge glass — causes, how you identify the source, and your actions as 2/E (including if manoeuvring). What is carryover?", "cross_family": false }, { "answer_id": "BCFS-001", "score": 0.5391400992870331, "sibling_score": null, "answer_score": 0.5391400992870331, "sibling_qid": "", "sibling_text": "detecting and responding to oil contamination in the hot well or cascade tank detect oil film or sheen on the observation tank surface smell oiliness in the gauge glass oil in water monitor alarm if fitted foaming or an unstable boiler water level never let oil into the boiler it forms an insulating film on heating surfaces causing local overheating tube bulging and failure and it makes the water ", "sibling_family": "", "via": "answer_title", "answer_title": "Detecting and responding to oil contamination in the hot well or cascade tank", "cross_family": false }, { "answer_id": "BLR-GG-001", "score": 0.5261365890502929, "sibling_score": null, "answer_score": 0.5261365890502929, "sibling_qid": "", "sibling_text": "how do you overhaul repair renew assemble or tighten a boiler gauge glass isolate first steam cock shut water cock shut drain open allow to cool work only on a dead glass strip evenly inspect glass for erosion etching cracks plus cocks ball check valves seats gland faces", "sibling_family": "", "via": "answer_title", "answer_title": "How do you overhaul, repair, renew, assemble or tighten a boiler gauge glass?", "cross_family": false } ] }, { "qid": "CHE-2025-08-0439-Q001", "text": "Other papers n written status", "family": "__META__ (non-exam)", "subtopic": "", "tid": "CHE-2025-08-0439", "tray": "review", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.6701995730400085, "sibling_score": 0.6701995730400085, "answer_score": null, "sibling_qid": "MUM-2026-05-3187-Q001", "sibling_text": "status of other orals and written", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": false }, { "answer_id": "DUS-P1-02", "score": 0.48134833574295044, "sibling_score": 0.48134833574295044, "answer_score": null, "sibling_qid": "KOL-2025-08-3851-Q006", "sibling_text": "drydock plans rudder checks cross questions what about other written oral exams status told waiting for naval written result to come all other paper cleared", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Plans, drawings and special tools kept ready for drydock — engine-department view", "cross_family": true }, { "answer_id": "EXHV-P01-001", "score": 0.4528549313545227, "sibling_score": 0.4528549313545227, "answer_score": null, "sibling_qid": "KOC-2026-08-2106-Q001", "sibling_text": "status of written oral company type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": true } ] }, { "qid": "CHE-2025-08-0439-Q004", "text": "Xhead survey which part takes load (bottom bearing)", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Crosshead Bearing", "tid": "CHE-2025-08-0439", "tray": "review", "candidates": [ { "answer_id": "XHD-BRG-C-001", "score": 0.7170205116271973, "sibling_score": 0.7170205116271973, "answer_score": 0.3905780017375946, "sibling_qid": "KOL-2025-08-3852-Q002", "sibling_text": "crosshead bearing bottom part survey", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "A. Present the crosshead bottom shell for survey, piston in place", "cross_family": false }, { "answer_id": "XHD-BRG-B-002", "score": 0.7017804980278015, "sibling_score": 0.7017804980278015, "answer_score": null, "sibling_qid": "KOL-2020-02-1517-Q008", "sibling_text": "cross head bottom half bearing survey", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Removing and lowering the crosshead bottom shell — the critical safety measure", "cross_family": false }, { "answer_id": "CXH-BRG-FINAL-1-001", "score": 0.6755509972572327, "sibling_score": 0.6755509972572327, "answer_score": null, "sibling_qid": "KOL-2019-03-3219-Q002", "sibling_text": "crosshead lower bearing survey x questions", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead bearing survey: open-up, removal & inspection", "cross_family": false } ] }, { "qid": "CHE-2025-08-0439-Q007", "text": "Boiler tube plugging procedure", "family": "Boilers - Construction & Components", "subtopic": "Boiler Tubes / Economiser Tubes", "tid": "CHE-2025-08-0439", "tray": "review", "candidates": [ { "answer_id": "BLR-TUBE-P02-002", "score": 0.7717674970626831, "sibling_score": 0.7717674970626831, "answer_score": 0.6097209572792053, "sibling_qid": "KOL-2017-08-3085-Q002", "sibling_text": "how ll u plug a tube in boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Plugging a leaking boiler tube (temporary arrest)", "cross_family": false }, { "answer_id": "HYD-602-006", "score": 0.5752631396055221, "sibling_score": null, "answer_score": 0.5752631396055221, "sibling_qid": "", "sibling_text": "if 20 of the boiler tubes are plugged how do you carry out the pressure test and what checks apply identify water tube versus smoke fire tube construction before describing the repair or the test the plug is loaded quite differently confirm the maker class approved plugging method the plug material and retention and which circuit is affected", "sibling_family": "", "via": "answer_title", "answer_title": "If 20% of the boiler tubes are plugged, how do you carry out the pressure test and what checks apply?", "cross_family": false }, { "answer_id": "VAC-COND-004", "score": 0.5257382690906525, "sibling_score": null, "answer_score": 0.5257382690906525, "sibling_qid": "", "sibling_text": "vacuum condenser tube replacement and pressure testing leak location drain the seawater side flood the steam space with fresh water fluorescein helps inspect both tube plates air and soap or ultrasonic detection as alternatives temporary repair tapered plugs driven at both ends of the failed tube log it and track the plugged count against the maker s allowance", "sibling_family": "", "via": "answer_title", "answer_title": "Vacuum condenser tube replacement and pressure testing", "cross_family": false } ] }, { "qid": "CHE-2025-08-0510-Q005", "text": "Oil hole have linear curve why", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft / Crankpin", "tid": "CHE-2025-08-0510", "tray": "new", "candidates": [ { "answer_id": "CYL-LINER-P03-002", "score": 0.5177716016769409, "sibling_score": 0.5177716016769409, "answer_score": null, "sibling_qid": "KOL-2018-05-1373-Q013", "sibling_text": "linear leaking how will u find", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Detecting and confirming a cracked or leaking liner — and pinning the unit", "cross_family": true }, { "answer_id": "CYL-LINER-P04-004", "score": 0.46765464544296265, "sibling_score": 0.46765464544296265, "answer_score": 0.346874925494194, "sibling_qid": "MUM-2025-11-2490-Q001", "sibling_text": "polar graph curve in liner no idea", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Polar wear graph / curve", "cross_family": true }, { "answer_id": "HYD-BONJ-001", "score": 0.4651587903499603, "sibling_score": 0.4651587903499603, "answer_score": null, "sibling_qid": "KOC-2022-10-0102-Q004", "sibling_text": "hydrostatic curve valya pidi ilarnu", "sibling_family": "", "via": "sibling", "answer_title": "Hydrostatic curves — what they give and how they are used", "cross_family": false } ] }, { "qid": "CHE-2025-08-0511-Q002", "text": "Which engine u sailed total", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "CHE-2025-08-0511", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.6597315073013306, "sibling_score": 0.6597315073013306, "answer_score": null, "sibling_qid": "MUM-2026-04-1007-Q002", "sibling_text": "type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.5973308086395264, "sibling_score": 0.5973308086395264, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q001", "sibling_text": "type of ship sailed and engines details", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ETP-344-P03-001", "score": 0.5966637134552002, "sibling_score": 0.5966637134552002, "answer_score": null, "sibling_qid": "KOL-2026-03-2048-Q001", "sibling_text": "type of engine done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false } ] }, { "qid": "CHE-2025-08-0511-Q003", "text": "Total yrs of sailing", "family": "__META__ (non-exam)", "subtopic": "", "tid": "CHE-2025-08-0511", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-004", "score": 0.48905837535858154, "sibling_score": 0.48905837535858154, "answer_score": null, "sibling_qid": "MUM-2025-09-0481-Q023", "sibling_text": "work hour young seafearer", "sibling_family": "MLC", "via": "sibling", "answer_title": "Young seafarers — minimum age, night work, and what the 2/E must ensure", "cross_family": true }, { "answer_id": "LB-DAVIT-HRU-005", "score": 0.48333820700645447, "sibling_score": 0.48333820700645447, "answer_score": null, "sibling_qid": "MUM-2022-09-0046-Q005", "sibling_text": "5 yearly maintenance on life boat david winch", "sibling_family": "SOLAS - 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What is a Recognized Organization, how is it recognized by a flag State, and how can a classification society become one?", "cross_family": false } ] }, { "qid": "CHE-2025-10-0065-Q001", "text": "Type of ship: I said product tanker and said I've sailed on Crude oil tanker when I was junior and he asked mostly about crude oil tanker.", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2025-10-0065", "tray": "review", "candidates": [ { "answer_id": "TKR-TYPE-001", "score": 0.8003044128417969, "sibling_score": 0.8003044128417969, "answer_score": 0.5896116256713867, "sibling_qid": "CHE-2025-10-0516-Q002", "sibling_text": "type of ships sailed i told product and crude tanker he asked constructional difference between them", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "1. Crude oil tanker vs product tanker / carrier — construction and cargo-area differences", "cross_family": true }, { "answer_id": "COT-01", "score": 0.7816504836082458, "sibling_score": 0.7816504836082458, "answer_score": 0.5918650567531586, "sibling_qid": "KOC-2026-04-0892-Q003", "sibling_text": "type of ship sailed tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Oil-tanker types, definitions and cargo capability", "cross_family": false }, { "answer_id": "IBC-BCH-B-004", "score": 0.7642568945884705, "sibling_score": 0.7642568945884705, "answer_score": null, "sibling_qid": "MUM-2026-05-3156-Q001", "sibling_text": "type of ships chemical tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Certificate of Fitness and MARPOL Annex II in practice", "cross_family": false } ] }, { "qid": "CHE-2025-10-0067-Q001", "text": "wr maximum chances of leakage from refrigeration (I said mechanical seal", "family": "Refrigeration & AC", "subtopic": "Compressor / Leakage / Maintenance", "tid": "CHE-2025-10-0067", "tray": "review", "candidates": [ { "answer_id": "PCD-P03-03", "score": 0.6613404154777527, "sibling_score": 0.6613404154777527, "answer_score": null, "sibling_qid": "KOC-2025-03-2061-Q013", "sibling_text": "mechanical seal where leak occurs", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Mechanical seal — construction, materials, fitting, removal and leakage", "cross_family": true }, { "answer_id": "REFR-FLT-003", "score": 0.620944082736969, "sibling_score": 0.620944082736969, "answer_score": null, "sibling_qid": "KOL-2020-03-3980-Q006", "sibling_text": "refrigerant completely leaked your action", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Refrigerant leakage or loss: detect, confirm, respond, and the record-keeping", "cross_family": false }, { "answer_id": "REEF-COMP-008", "score": 0.592006266117096, "sibling_score": 0.592006266117096, "answer_score": null, "sibling_qid": "KOL-2020-02-3320-Q003", "sibling_text": "suction vv of ref compressor leaking how to find", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Valves, clearances, oil carry-over, refrigerant-in-oil, frosting, tandem valves, cooling — fault checks", "cross_family": false } ] }, { "qid": "CHE-2025-10-0067-Q003", "text": "tumble home", "family": "", "subtopic": "", "tid": "CHE-2025-10-0067", "tray": "review", "candidates": [ { "answer_id": "KEEL-FRM-B-003", "score": 0.7223430871963501, "sibling_score": 0.7223430871963501, "answer_score": null, "sibling_qid": "KOC-2025-10-0670-Q007", "sibling_text": "tumble home", "sibling_family": "", "via": "sibling", "answer_title": "Rise of floor, camber, deadrise & hull-form terms", "cross_family": false }, { "answer_id": "SHELL-PLT-A-002", "score": 0.7215983271598816, "sibling_score": 0.7215983271598816, "answer_score": null, "sibling_qid": "KOL-2025-09-1083-Q008", "sibling_text": "tumble 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0.5714424848556519, "sibling_score": 0.5714424848556519, "answer_score": null, "sibling_qid": "MUM-2025-03-2273-Q008", "sibling_text": "safety and material what is looked after in class", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Certificate of class — what it is, who issues it, what class looks after", "cross_family": false }, { "answer_id": "WELD-A-003", "score": 0.561105489730835, "sibling_score": 0.561105489730835, "answer_score": null, "sibling_qid": "KOC-2024-12-1889-Q005", "sibling_text": "oxy acetylene gas safety and pressure some 3 more don t remember now", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Oxy-acetylene cylinders — storage, handling and safety", "cross_family": false }, { "answer_id": "SMSFR-002", "score": 0.5555301308631897, "sibling_score": 0.5555301308631897, "answer_score": null, "sibling_qid": "KOL-2017-01-0051-Q001", "sibling_text": "safety management system content", "sibling_family": 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"via": "sibling", "answer_title": "Fair-curve alignment, influence numbers and propeller overhang", "cross_family": false }, { "answer_id": "SGB-212-001", "score": 0.5734886527061462, "sibling_score": 0.5734886527061462, "answer_score": null, "sibling_qid": "KOL-2022-10-1926-Q010", "sibling_text": "and how to rectify", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Dezincification of brass", "cross_family": false }, { "answer_id": "LOLL-P02-002", "score": 0.5719153881072998, "sibling_score": 0.5719153881072998, "answer_score": null, "sibling_qid": "MUM-2023-03-0090-Q008", "sibling_text": "angle lol how to correct", "sibling_family": "", "via": "sibling", "answer_title": "1. Correcting angle of loll — the ballasting sequence", "cross_family": false } ] }, { "qid": "CHE-2025-10-0071-Q006", "text": "Rudder construction,how rudder bottom part is connected to ship,", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "CHE-2025-10-0071", "tray": "review", "candidates": [ { "answer_id": "TRS-002", "score": 0.6592934131622314, "sibling_score": 0.6592934131622314, "answer_score": 0.4912296861410141, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "DUS-P5-03", "score": 0.6157375574111938, "sibling_score": 0.6157375574111938, "answer_score": 0.555163687467575, "sibling_qid": "KOC-2024-12-2058-Q002", "sibling_text": "draw aft portion of the ship without propeller and rudder in it show the rudder axis which pass through the structure", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Stern frame construction, cross-section and rudder-axis sketch", "cross_family": true }, { "answer_id": "RUD-DROP-001", "score": 0.6123253703117371, "sibling_score": 0.6123253703117371, "answer_score": null, "sibling_qid": "KOC-2026-04-0891-Q002", "sibling_text": "rudder after dock", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false } ] }, { "qid": "CHE-2025-10-0071-Q007", "text": "What is pintle bearing?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "CHE-2025-10-0071", "tray": "new", "candidates": [ { "answer_id": "TRS-002", "score": 0.6171123385429382, "sibling_score": 0.6171123385429382, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "BRG-NOM-004", "score": 0.5434199571609497, "sibling_score": 0.5434199571609497, "answer_score": null, "sibling_qid": "KOL-2026-05-0042-Q009", "sibling_text": "nip of bearing load carrying", "sibling_family": "", "via": "sibling", "answer_title": "Bearing Nip/Crush, Clearance, and How the Shell is Held", "cross_family": false }, { "answer_id": "WMAT-170-009", "score": 0.5185881853103638, "sibling_score": 0.5185881853103638, "answer_score": null, "sibling_qid": "KOL-2021-02-1891-Q010", "sibling_text": "lead bronze bearing where fitted", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Lead bronze, aluminium-tin and other bearing-material variants", "cross_family": true } ] }, { "qid": "CHE-2025-10-0071-Q008", "text": "Where is pintle bearing is connected to ship?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "CHE-2025-10-0071", "tray": "new", "candidates": [ { "answer_id": "TRS-002", "score": 0.6465155482292175, "sibling_score": 0.6465155482292175, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "PRE-TEN-001", "score": 0.5554733872413635, "sibling_score": 0.5554733872413635, "answer_score": null, "sibling_qid": "MUM-2026-09-3907-Q001", "sibling_text": "rudder carrier bearing replacement in port", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Pre-stressing and pre-tensioning in main-engine bolting", "cross_family": false }, { "answer_id": "CHK-RM-001", "score": 0.5487747192382812, "sibling_score": 0.5487747192382812, "answer_score": null, "sibling_qid": "MUM-2026-06-3625-Q012", "sibling_text": "how it is connected to the ship hull", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "What are chocks? Function, types, where fitted and how placed — which have the biggest area, and how does the bedplate connect to the hull?", "cross_family": true } ] }, { "qid": "CHE-2025-10-0071-Q009", "text": "Aft part of ship building construction start from which part?", "family": "Ship Construction & Stability", "subtopic": "Stern Frame / Transom", "tid": "CHE-2025-10-0071", "tray": "new", "candidates": [ { "answer_id": "PPS-230-006", "score": 0.6253744959831238, "sibling_score": 0.6253744959831238, "answer_score": null, "sibling_qid": "CHE-2026-09-3914-Q002", "sibling_text": "forward ship constructional arrangements", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Fore-end / fore-peak structure: draw and describe", "cross_family": false }, { "answer_id": "DUS-P5-03", "score": 0.593227207660675, "sibling_score": 0.593227207660675, "answer_score": null, "sibling_qid": "MUM-2026-06-3393-Q006", "sibling_text": "transom stern construction", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Stern frame construction, cross-section and rudder-axis sketch", "cross_family": false }, { "answer_id": "BHD-TYP-C-002", "score": 0.5655101537704468, "sibling_score": 0.5655101537704468, "answer_score": 0.4805043816566467, "sibling_qid": "MUM-2026-04-3030-Q007", "sibling_text": "aft bulkhead", "sibling_family": "", "via": "sibling", "answer_title": "Aft (after peak) bulkhead — what it is and where it sits", "cross_family": false } ] }, { "qid": "CHE-2025-10-0072-Q005", "text": "Rudder carrier bearing construction and", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "CHE-2025-10-0072", "tray": "review", "candidates": [ { "answer_id": "TRS-002", "score": 0.7610463500022888, "sibling_score": 0.7610463500022888, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "PRE-TEN-001", "score": 0.709032416343689, "sibling_score": 0.709032416343689, "answer_score": null, "sibling_qid": "MUM-2026-06-3504-Q007", "sibling_text": "rudder carrier bearing removal procedure", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Pre-stressing and pre-tensioning in main-engine bolting", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.6813379526138306, "sibling_score": 0.6813379526138306, "answer_score": 0.46474237143993374, "sibling_qid": "CHE-2026-02-0110-Q006", "sibling_text": "how rudder weight is carried key ans i said carrier bearing how it carrying explain", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false } ] }, { "qid": "CHE-2025-10-0072-Q010", "text": "Rudder shock absorbing", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "CHE-2025-10-0072", "tray": "review", "candidates": [ { "answer_id": "STEER-055-A-003", "score": 0.7000667452812195, "sibling_score": 0.7000667452812195, "answer_score": 0.4336757957935333, "sibling_qid": "KOL-2021-01-3371-Q005", "sibling_text": "ship in rough weather rudder getting shock due to waves what arrangement to absorb such shocks preventing false feedback to system", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Hunting gear, floating lever and buffer spring", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.6003126502037048, "sibling_score": 0.6003126502037048, "answer_score": null, "sibling_qid": "KOL-2021-03-1582-Q006", "sibling_text": "checks on rudder in dd", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "STEER-055-A-004", "score": 0.5938693881034851, "sibling_score": 0.5938693881034851, "answer_score": null, "sibling_qid": "KOL-2021-08-1618-Q004", "sibling_text": "rudder hydraulic locking", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Hydraulic faults — air, sluggish response, locking, leakage", "cross_family": false } ] }, { "qid": "CHE-2025-10-0072-Q011", "text": "Isolation valve", "family": "Auxiliary Equipment", "subtopic": "Quick Closing Valve", "tid": "CHE-2025-10-0072", "tray": "review", "candidates": [ { "answer_id": "FFF-A-003", "score": 0.7255986332893372, "sibling_score": 0.7255986332893372, "answer_score": null, "sibling_qid": "CHE-2026-02-0111-Q001S5", "sibling_text": "isolation valve its safeties", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fire main, hydrants, isolating and deck valves, and fire-line fittings", "cross_family": true }, { "answer_id": "MR-DS-PV-B-006", "score": 0.7076858282089233, "sibling_score": 0.7076858282089233, "answer_score": 0.494380122423172, "sibling_qid": "CHE-2026-05-0544-Q008", "sibling_text": "what s use of isolation valve", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "6. Deck isolating valve, deck relief/safety devices, and cargo-tank pressure", "cross_family": true }, { "answer_id": "GV-330-001", "score": 0.4976505309343338, "sibling_score": null, "answer_score": 0.4976505309343338, "sibling_qid": "", "sibling_text": "draw and explain the gate valve construction main parts operation onboard use isolating valve only fully open or fully shut neverthrottled operation handwheel threaded stem wedge raised lowered between two seat faces", "sibling_family": "", "via": "answer_title", "answer_title": "Draw and explain the gate valve — construction, main parts, operation & onboard use", "cross_family": false } ] }, { "qid": "CHE-2025-10-0072-Q012", "text": "Fuel oil overflow pipe construction", "family": "Auxiliary Equipment", "subtopic": "Vent Heads / Air Vents", "tid": "CHE-2025-10-0072", "tray": "new", "candidates": [ { "answer_id": "VENT-HD-003", "score": 0.6014282703399658, "sibling_score": 0.6014282703399658, "answer_score": 0.5107650458812714, "sibling_qid": "KOC-2026-09-2187-Q003", "sibling_text": "draw fuel oil tank vent and explain", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Fuel-oil / diesel-oil / bunker tank vent arrangements — draw and explain", "cross_family": false }, { "answer_id": "VENT-HD-008", "score": 0.5838449597358704, "sibling_score": 0.5838449597358704, "answer_score": null, "sibling_qid": "MUM-2024-07-0187-Q007", "sibling_text": "er double bottom fuel oil tank vent didn t accept flame trap and nr arrangement wanted something else", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Compare ballast, bunker and fuel tank vent-head arrangements and fittings", "cross_family": false }, { "answer_id": "BNKSP-330-004", "score": 0.5554642677307129, "sibling_score": 0.5554642677307129, "answer_score": 0.48147120177745817, "sibling_qid": "KOL-2021-10-3464-Q005", "sibling_text": "during bunkering how will you prevent overflowing of bunker tanks he wants to hear overflow tank to be kept empty", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Preventing bunker tank overflow during bunkering", "cross_family": true } ] }, { "qid": "CHE-2025-10-0072-Q013", "text": "Annex 1", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "CHE-2025-10-0072", "tray": "review", "candidates": [ { "answer_id": "ODC-001", "score": 0.7724289298057556, "sibling_score": 0.7724289298057556, "answer_score": null, "sibling_qid": "KOL-2023-11-0785-Q005", "sibling_text": "annex 1", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "MARPOL Annex I oil discharge criteria — the overall framework", "cross_family": false }, { "answer_id": "OILPOL-OWS-008", "score": 0.7721745371818542, "sibling_score": 0.7721745371818542, "answer_score": null, "sibling_qid": "MUM-2025-08-0393-Q002", "sibling_text": "annex 1", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Convention and Annex I framework for oil pollution", "cross_family": false }, { "answer_id": "IOPP-191-005", "score": 0.6445122361183167, "sibling_score": 0.6445122361183167, "answer_score": null, "sibling_qid": "CHE-2026-04-0148-Q006", "sibling_text": "annex 1 documents certificates and surveys", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "MARPOL Annex I certificates and documents for IOPP / OWS / PSC preparation", "cross_family": false } ] }, { "qid": "CHE-2025-10-0073-Q009", "text": "purpose or overload trip ?", "family": "Electrical - Protection & Relays", "subtopic": "Overload Protection / Thermal Trip", "tid": "CHE-2025-10-0073", "tray": "review", "candidates": [ { "answer_id": "PTRIP-222-002", "score": 0.6671008467674255, "sibling_score": 0.6671008467674255, "answer_score": null, "sibling_qid": "KOC-2024-09-1403-Q004", "sibling_text": "preferential trip overload trip percentage", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Stages, load-shedding sequence, settings, time delays and loads shed", "cross_family": false }, { "answer_id": "OCR-185-001", "score": 0.6495628952980042, "sibling_score": 0.6495628952980042, "answer_score": null, "sibling_qid": "MUM-2026-07-3710-Q005", "sibling_text": "over current trip", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Testing an overcurrent relay / overcurrent trip onboard", "cross_family": false }, { "answer_id": "PTRIP-222-001", "score": 0.6236419081687927, "sibling_score": 0.6236419081687927, "answer_score": 0.38454873859882355, "sibling_qid": "MUM-2025-12-1833-Q005", "sibling_text": "preferential trip purpose working", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Preferential trip — purpose, working principle and activation", "cross_family": false } ] }, { "qid": "CHE-2025-10-0075-Q005", "text": "Purpose of Ism", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "CHE-2025-10-0075", "tray": "review", "candidates": [ { "answer_id": "ISM-ELEM-001", "score": 0.6750654578208923, "sibling_score": 0.6750654578208923, "answer_score": 0.33671515733003615, "sibling_qid": "MUM-2024-07-2766-Q004", "sibling_text": "what is purpose of ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "ISM-AUD-P02-002", "score": 0.6634621024131775, "sibling_score": 0.6634621024131775, "answer_score": 0.3461396396160126, "sibling_qid": "KOC-2026-01-2087-Q013", "sibling_text": "what is the purpose of ism internal", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM Code — what it is, purpose, objectives and structure", "cross_family": false }, { "answer_id": "ISM-DPA-002", "score": 0.5856439471244812, "sibling_score": 0.5856439471244812, "answer_score": null, "sibling_qid": "KOC-2023-03-0172-Q004", "sibling_text": "ism who is responsible for ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "DPA basis : which convention, which code, and who is responsible for ISM", "cross_family": false } ] }, { "qid": "CHE-2025-10-0076-Q001", "text": "Type of ship: I said product tanker and said I've sailed on Crude oil tanker when I was junior and he asked mostly about crude oil tanker.", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2025-10-0076", "tray": "review", "candidates": [ { "answer_id": "TKR-TYPE-001", "score": 0.8003044128417969, "sibling_score": 0.8003044128417969, "answer_score": 0.5896116256713867, "sibling_qid": "CHE-2025-10-0516-Q002", "sibling_text": "type of ships sailed i told product and crude tanker he asked constructional difference between them", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "1. Crude oil tanker vs product tanker / carrier — construction and cargo-area differences", "cross_family": true }, { "answer_id": "COT-01", "score": 0.7816504240036011, "sibling_score": 0.7816504240036011, "answer_score": 0.5918651074171066, "sibling_qid": "KOC-2026-04-0892-Q003", "sibling_text": "type of ship sailed tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Oil-tanker types, definitions and cargo capability", "cross_family": false }, { "answer_id": "IBC-BCH-B-004", "score": 0.7642568945884705, "sibling_score": 0.7642568945884705, "answer_score": null, "sibling_qid": "MUM-2026-05-3156-Q001", "sibling_text": "type of ships chemical tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Certificate of Fitness and MARPOL Annex II in practice", "cross_family": false } ] }, { "qid": "CHE-2025-10-0078-Q003", "text": "Rudder carrier bearing", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "CHE-2025-10-0078", "tray": "review", "candidates": [ { "answer_id": "TRS-002", "score": 0.7677029967308044, "sibling_score": 0.7677029967308044, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "PRE-TEN-001", "score": 0.7648058533668518, "sibling_score": 0.7648058533668518, "answer_score": null, "sibling_qid": "MUM-2026-06-3504-Q007", "sibling_text": "rudder carrier bearing removal procedure", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Pre-stressing and pre-tensioning in main-engine bolting", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.7139895558357239, "sibling_score": 0.7139895558357239, "answer_score": 0.49589720368385315, "sibling_qid": "CHE-2026-02-0110-Q006", "sibling_text": "how rudder weight is carried key ans i said carrier bearing how it carrying explain", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false } ] }, { "qid": "CHE-2025-10-0217-Q001", "text": "Type of engine sailed", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "CHE-2025-10-0217", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8497571349143982, "sibling_score": 0.8497571349143982, "answer_score": null, "sibling_qid": "MUM-2026-04-1007-Q002", "sibling_text": "type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.7686887383460999, "sibling_score": 0.7686887383460999, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q001", "sibling_text": "type of ship sailed and engines details", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7370686531066895, "sibling_score": 0.7370686531066895, "answer_score": null, "sibling_qid": "KOL-2025-12-2031-Q002", "sibling_text": "type of ship and engine sailed engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "CHE-2025-10-0220-Q001", "text": "Which type engine you worked on ?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "CHE-2025-10-0220", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.7395910620689392, "sibling_score": 0.7395910620689392, "answer_score": null, "sibling_qid": "CHE-2026-01-0240-Q001", "sibling_text": "which type engine you worked on", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "MCC-MEB-P01-001", "score": 0.7149139046669006, "sibling_score": 0.7149139046669006, "answer_score": null, "sibling_qid": "MUM-2026-09-3997-Q002", "sibling_text": "type of engine worked me mcc me b and rta", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "MC-C (\"Compact\") engine — design and the main constructional differences from MC", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7137764096260071, "sibling_score": 0.7137764096260071, "answer_score": null, "sibling_qid": "CHE-2026-04-0506-Q003", "sibling_text": "types of engine you worked specifications of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false } ] }, { "qid": "CHE-2025-10-0220-Q009", "text": "Which type of boiler you had ?", "family": "Boilers - Construction & Components", "subtopic": "Boiler Types / Construction", "tid": "CHE-2025-10-0220", "tray": "review", "candidates": [ { "answer_id": "BLR-TUBE-P01-002", "score": 0.778737485408783, "sibling_score": 0.778737485408783, "answer_score": 0.49440616369247437, "sibling_qid": "CHE-2026-01-0240-Q009", "sibling_text": "which type of boiler you had", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "03. Types, functions and arrangement of boiler tubes", "cross_family": false }, { "answer_id": "BLR-CAP-BOILER-CAPACITY-RATING-005", "score": 0.7630411982536316, "sibling_score": 0.7630411982536316, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q009", "sibling_text": "type of boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "What are boiler pressure ratings or maximum working pressure?", "cross_family": false }, { "answer_id": "BLR-DRUM-002", "score": 0.724510908126831, "sibling_score": 0.724510908126831, "answer_score": null, "sibling_qid": "MUM-2026-06-3660-Q005", "sibling_text": "boiler type and boiler construction", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Steam-drum construction, material and plate manufacture, and construction-stage tests", "cross_family": false } ] }, { "qid": "CHE-2025-10-0303-Q006", "text": "Type of ship sailed", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2025-10-0303", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8456622362136841, "sibling_score": 0.8456622362136841, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.844673752784729, "sibling_score": 0.844673752784729, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7923667430877686, "sibling_score": 0.7923667430877686, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "CHE-2025-10-0304-Q011", "text": "How many different type of vessel you sailed.", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2025-10-0304", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.7202752232551575, "sibling_score": 0.7202752232551575, "answer_score": null, "sibling_qid": "CHE-2026-02-0481-Q001", "sibling_text": "type of vessels sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.6659599542617798, "sibling_score": 0.6659599542617798, "answer_score": null, "sibling_qid": "CHE-2026-03-0255-Q001", "sibling_text": "type of vessel and engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "LSA-LB-A-002", "score": 0.4214509904384613, "sibling_score": null, "answer_score": 0.4214509904384613, "sibling_qid": "", "sibling_text": "types of lifeboat and which type on your ship two classification axes by enclosure open obsolete on new ships partially enclosed totally enclosed and by launching davit launched on falls vs free fall over a stern ramp modern solas standard totally enclosed self righting", "sibling_family": "", "via": "answer_title", "answer_title": "Types of lifeboat — and which type on your ship", "cross_family": false } ] }, { "qid": "CHE-2025-10-0304-Q013", "text": "What is paromatic rolling?why in container ship.", "family": "", "subtopic": "Static / Dynamic Stability", "tid": "CHE-2025-10-0304", "tray": "new", "candidates": [ { "answer_id": "PAR-ROLL-003", "score": 0.6479244232177734, "sibling_score": 0.6479244232177734, "answer_score": 0.4882768392562866, "sibling_qid": "KOL-2019-11-0353-Q005", "sibling_text": "paramatric rolling in container ships why not in other type of ships", "sibling_family": "", "via": "sibling", "answer_title": "03. Why container / car-carrier / Ro-Ro ships, and why not bulk carriers", "cross_family": false }, { "answer_id": "CONT-STAB-004", "score": 0.6455292701721191, "sibling_score": 0.6455292701721191, "answer_score": 0.567049652338028, "sibling_qid": "CHE-2026-05-0524-Q007", "sibling_text": "parametric rolling for container ship", "sibling_family": "", "via": "sibling", "answer_title": "Parametric rolling in a container ship", "cross_family": false }, { "answer_id": "PAR-ROLL-004", "score": 0.6410585641860962, "sibling_score": 0.6410585641860962, "answer_score": 0.5158435493707657, "sibling_qid": "KOL-2019-08-0308-Q001", "sibling_text": "what is parametric rolling why it is important for container ship why it happens so draw the flare of container ship explain parametric rolling relationship between synchronous parametric rolling", "sibling_family": "", "via": "sibling", "answer_title": "04. Parametric vs synchronous rolling (and the ‘sequential / prismatic’ variants)", "cross_family": false } ] }, { "qid": "CHE-2025-10-0307-Q004", "text": "What happen when you close the breaker of dead generator.how to test under voltage trip .", "family": "Electrical - Generator & Alternator", "subtopic": "Voltage Dip / Droop", "tid": "CHE-2025-10-0307", "tray": "review", "candidates": [ { "answer_id": "SYNC-C-001", "score": 0.6848863959312439, "sibling_score": 0.6848863959312439, "answer_score": null, "sibling_qid": "KOC-2021-05-1132-Q008", "sibling_text": "2nd generator to run in parallel all parameters are fine but breaker not closing why testing of uv trip", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Paralleling generators — procedure, conditions and practical checks", "cross_family": false }, { "answer_id": "SYNC-D-001", "score": 0.6778376698493958, "sibling_score": 0.6778376698493958, "answer_score": null, "sibling_qid": "MUM-2023-03-1381-Q002", "sibling_text": "what happens when u close d circuit breaker of a generator whose voltage is not in phase", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Closing the breaker out of phase — wrong-synchronizing consequences", "cross_family": false }, { "answer_id": "NO-VOLT-001", "score": 0.6773672103881836, "sibling_score": 0.6773672103881836, "answer_score": null, "sibling_qid": "MUM-2026-06-3371-Q004", "sibling_text": "alternator tripped as soon as breaker closed what trip activated ans undervoltage trip", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "The 3/E reports the generator has started but no voltage is showing — reasons, and your actions as 2/E", "cross_family": false } ] }, { "qid": "CHE-2025-10-0446-Q002", "text": "You are in Drydock how you do welding in workshop", "family": "Workshop & Welding", "subtopic": "Crack on Main Deck", "tid": "CHE-2025-10-0446", "tray": "review", "candidates": [ { "answer_id": "WBS-C-003", "score": 0.7527959942817688, "sibling_score": 0.7527959942817688, "answer_score": null, "sibling_qid": "MUM-2017-01-2126-Q001", "sibling_text": "procedure to weld something in settling tank when ship in drydock", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Shipboard hot work — the permit, the designated area, and work near fuel tanks", "cross_family": false }, { "answer_id": "WBS-C-001", "score": 0.7161757349967957, "sibling_score": 0.7161757349967957, "answer_score": 0.5271422177553177, "sibling_qid": "MUM-2025-11-2497-Q002", "sibling_text": "welding in workshop your suggestion", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding, brazing and soldering — what they are, the shipboard processes, and workshop safety", "cross_family": false }, { "answer_id": "PW-327-003", "score": 0.678054690361023, "sibling_score": 0.678054690361023, "answer_score": null, "sibling_qid": "KOL-2021-08-1623-Q007", "sibling_text": "weld then in dd", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "3. Shell / deck plate repair and renewal in dry dock (class context)", "cross_family": false } ] }, { "qid": "CHE-2025-10-0446-Q005", "text": "Hydrogen attack", "family": "NDT & Material Testing", "subtopic": "Hydrogen Embrittlement", "tid": "CHE-2025-10-0446", "tray": "new", "candidates": [ { "answer_id": "BIO-FUEL-002", "score": 0.5080465078353882, "sibling_score": 0.5080465078353882, "answer_score": null, "sibling_qid": "MUM-2026-02-1281-Q008", "sibling_text": "gren hydrogen blue hydrogen", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Green, blue and grey hydrogen and ammonia — what the colours mean", "cross_family": true }, { "answer_id": "LH-ELEC-002", "score": 0.5018804669380188, "sibling_score": 0.5018804669380188, "answer_score": null, "sibling_qid": "CHE-2026-08-3900-Q019", "sibling_text": "hydrogen embrittlement", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "2. 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Fuel Injection & Pumps", "via": "sibling", "answer_title": "MAN B&W MC VIT — varying the start of injection on a helix pump", "cross_family": false }, { "answer_id": "VIT-MECH-D-001", "score": 0.6132775545120239, "sibling_score": 0.6132775545120239, "answer_score": null, "sibling_qid": "KOL-2019-07-1463-Q001", "sibling_text": "vit and super vit in man and b w how barrel moves up what type of arrangement and draw it he wants to know how barrel is moving up", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Super-VIT — construction and working (double-thread / upper-lower thread)", "cross_family": false }, { "answer_id": "FP-OVHL-002", "score": 0.5972258448600769, "sibling_score": 0.5972258448600769, "answer_score": 0.468494239449501, "sibling_qid": "MUM-2026-06-3426-Q003", "sibling_text": "shock absorber in fuel pump construction", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel-pump components, clearances and markings", "cross_family": false } ] }, { "qid": "CHE-2025-10-0515-Q006", "text": "Hydrogen attack where it is happening and how it is happening?", "family": "NDT & Material Testing", "subtopic": "Hydrogen Embrittlement", "tid": "CHE-2025-10-0515", "tray": "new", "candidates": [ { "answer_id": "LH-ELEC-002", "score": 0.393122136592865, "sibling_score": 0.393122136592865, "answer_score": null, "sibling_qid": "CHE-2026-08-3900-Q019", "sibling_text": "hydrogen embrittlement", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "2. Why are low-hydrogen electrodes used, and what hydrogen defect do they prevent?", "cross_family": false }, { "answer_id": "BIO-FUEL-002", "score": 0.38738372921943665, "sibling_score": 0.38738372921943665, "answer_score": null, "sibling_qid": "MUM-2026-02-1281-Q008", "sibling_text": "gren hydrogen blue hydrogen", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Green, blue and grey hydrogen and ammonia — what the colours mean", "cross_family": true }, { "answer_id": "BDC-P03-04", "score": 0.37391389459371566, "sibling_score": null, "answer_score": 0.37391389459371566, "sibling_qid": "", "sibling_text": "battery charging faults gassing overcharge deep discharge terminal corrosion gassing reaction electrolysis of water 2h o 2h o gas ratio two volumes h to one of o hydrogen is the explosion risk", "sibling_family": "", "via": "answer_title", "answer_title": "Battery charging faults — gassing, overcharge, deep discharge, terminal corrosion", "cross_family": false } ] }, { "qid": "CHE-2025-11-0081-Q001", "text": "Type of ship?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2025-11-0081", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8366292119026184, "sibling_score": 0.8366292119026184, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8018827438354492, "sibling_score": 0.8018827438354492, "answer_score": 0.5473108768463134, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8003316521644592, "sibling_score": 0.8003316521644592, "answer_score": 0.5218650102615356, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "CHE-2025-11-0082-Q001", "text": "Type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2025-11-0082", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8366292119026184, "sibling_score": 0.8366292119026184, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8018827438354492, "sibling_score": 0.8018827438354492, "answer_score": 0.5473108768463134, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8003316521644592, "sibling_score": 0.8003316521644592, "answer_score": 0.5218650102615356, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "CHE-2025-11-0082-Q002", "text": "WHAT IS MOU? CROSS", "family": "Surveys - Statutory", "subtopic": "MOU", "tid": "CHE-2025-11-0082", "tray": "new", "candidates": [ { "answer_id": "PSC-SURV-P01-001", "score": 0.6476791501045227, "sibling_score": 0.6476791501045227, "answer_score": 0.23674609363079072, "sibling_qid": "MUM-2025-11-2864-Q010", "sibling_text": "x many cross in this what is mou and why it is and all", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is a PSC MoU, and why is regional cooperation between port States required?", "cross_family": false }, { "answer_id": "PSC-RO-P02-004", "score": 0.4926491975784302, "sibling_score": 0.4926491975784302, "answer_score": 0.278520368039608, "sibling_qid": "MUM-2024-08-2769-Q005", "sibling_text": "mou which is the latest", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What are PSC MoUs, and what are the major regional MoUs?", "cross_family": false }, { "answer_id": "IMO-5PIL-001", "score": 0.4037421941757202, "sibling_score": 0.4037421941757202, "answer_score": null, "sibling_qid": "MUM-2025-11-0600-Q002", "sibling_text": "imo structure n cross", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Structure of IMO — the main organs", "cross_family": true } ] }, { "qid": "CHE-2025-11-0082-Q003", "text": "deck isolation valve? Cross", "family": "Auxiliary Equipment", "subtopic": "Quick Closing Valve", "tid": "CHE-2025-11-0082", "tray": "review", "candidates": [ { "answer_id": "FFF-A-003", "score": 0.7596067190170288, "sibling_score": 0.7596067190170288, "answer_score": null, "sibling_qid": "KOC-2025-12-0743-Q006", "sibling_text": "deck isolation valve cross questions", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fire main, hydrants, isolating and deck valves, and fire-line fittings", "cross_family": true }, { "answer_id": "MR-DS-PV-B-006", "score": 0.6744831204414368, "sibling_score": 0.6744831204414368, "answer_score": 0.4794024407863617, "sibling_qid": "MUM-2026-03-0853-Q002", "sibling_text": "function of deck isolation valve on deck", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "6. Deck isolating valve, deck relief/safety devices, and cargo-tank pressure", "cross_family": true }, { "answer_id": "MR-DS-PV-B-003", "score": 0.5660234689712524, "sibling_score": 0.5660234689712524, "answer_score": null, "sibling_qid": "MUM-2025-08-0415-Q001", "sibling_text": "deck seal function and valves before after deck seal", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "3. Alarms, trips, valves, and abnormal conditions of the deck seal", "cross_family": true } ] }, { "qid": "CHE-2025-11-0082-Q007", "text": "Bowflare", "family": "", "subtopic": "Bulbous Bow", "tid": "CHE-2025-11-0082", "tray": "new", "candidates": [ { "answer_id": "BFS-257-009", "score": 0.45957642793655396, "sibling_score": 0.45957642793655396, "answer_score": null, "sibling_qid": "MUM-2026-05-2998-Q005", "sibling_text": "egb soot bow", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "EGB soot-blowing arrangement and cleaning with the main engine running", "cross_family": false }, { "answer_id": "DRG-B-009", "score": 0.4437159299850464, "sibling_score": 0.4437159299850464, "answer_score": null, "sibling_qid": "KOL-2020-09-0422-Q008", "sibling_text": "bowsing tackle", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Bowsing tackle and tricing pendant", "cross_family": false }, { "answer_id": "OWS-15PPM-008", "score": 0.4297645688056946, "sibling_score": 0.4297645688056946, "answer_score": null, "sibling_qid": "MUM-2025-11-2486-Q007", "sibling_text": "ows why flush with fw", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "CHE-2025-11-0083-Q001", "text": "What ship sailed", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2025-11-0083", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8026735186576843, "sibling_score": 0.8026735186576843, "answer_score": null, "sibling_qid": "MUM-2026-04-1320-Q002", "sibling_text": "ship sailed on", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7205291986465454, "sibling_score": 0.7205291986465454, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.4077525481581688, "sibling_score": null, "answer_score": 0.4077525481581688, "sibling_qid": "", "sibling_text": "type a and type b ships how form and cargo set the freeboard", "sibling_family": "", "via": "answer_title", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "CHE-2025-11-0083-Q003", "text": "What is arrangement is there for flooding in bulk carrier", "family": "Cargo Ops - Bulk Carriers", "subtopic": "Cargo Hold Level Detector", "tid": "CHE-2025-11-0083", "tray": "review", "candidates": [ { "answer_id": "SOLAS12-BC-E-002", "score": 0.6741857528686523, "sibling_score": 0.6741857528686523, "answer_score": 0.46784599423408507, "sibling_qid": "KOL-2019-10-0336-Q001", "sibling_text": "arrangement to notice flooding in engine room and cargo spaces bulk carrier", "sibling_family": "", "via": "sibling", "answer_title": "Flooding / water-ingress watch actions, detection arrangement & sailing with a hold empty", "cross_family": false }, { "answer_id": "BSBH-420-002", "score": 0.6280192732810974, "sibling_score": 0.6280192732810974, "answer_score": null, "sibling_qid": "MUM-2026-05-3262-Q001", "sibling_text": "bulk carrier arrangement forward of collision bulkhead", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Fore-end / forepeak construction forward of the collision bulkhead — members and cross-section", "cross_family": false }, { "answer_id": "BC-IMSBC-002", "score": 0.6241096258163452, "sibling_score": 0.6241096258163452, "answer_score": null, "sibling_qid": "MUM-2025-07-0341-Q005", "sibling_text": "uperdeck drainage provision in bulk carrier", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "2. Bulk carrier construction and structural design", "cross_family": false } ] }, { "qid": "CHE-2025-11-0084-Q007", "text": "U r filling DO in emcy generator fuel tank and tank is full you have extra oil can you keep it in engine room( i said no he was not accepting)", "family": "MARPOL - General & Compliance", "subtopic": "Bunker Tank Location", "tid": "CHE-2025-11-0084", "tray": "review", "candidates": [ { "answer_id": "BNKSP-330-004", "score": 0.681137204170227, "sibling_score": 0.681137204170227, "answer_score": 0.5131081521511077, "sibling_qid": "KOL-2021-10-3464-Q005", "sibling_text": "during bunkering how will you prevent overflowing of bunker tanks he wants to hear overflow tank to be kept empty", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Preventing bunker tank overflow during bunkering", "cross_family": false }, { "answer_id": "OILRES-DISCH-TOPIC467-FINAL-002", "score": 0.6576794385910034, "sibling_score": 0.6576794385910034, "answer_score": null, "sibling_qid": "KOL-2019-12-0363-Q004", "sibling_text": "waste oil residue generated onboard through all the operation how will you dispose it off doesn t wanna listen incineration in all explanation i said sludge discharge connection for once he became happy and den again disappointed after i started with d procedure", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Transferring, disposing and discharging oil residue (sludge) — procedure and MARPOL requirement", "cross_family": true }, { "answer_id": "NBAB-574-003", "score": 0.6510723233222961, "sibling_score": 0.6510723233222961, "answer_score": null, "sibling_qid": "KOL-2019-03-0275-Q004", "sibling_text": "bunkering u r going to mix with old oil what precaution u will take", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "New bunker to be mixed with oil already on board — what precautions do you take?", "cross_family": false } ] }, { "qid": "CHE-2025-11-0084-Q010", "text": "Type of ship - crude oil tanker", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2025-11-0084", "tray": "review", "candidates": [ { "answer_id": "COT-01", "score": 0.8216531872749329, "sibling_score": 0.8216531872749329, "answer_score": 0.6002815544605254, "sibling_qid": "KOC-2026-04-0892-Q003", "sibling_text": "type of ship sailed tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Oil-tanker types, definitions and cargo capability", "cross_family": false }, { "answer_id": "IBC-BCH-B-004", "score": 0.789005696773529, "sibling_score": 0.789005696773529, "answer_score": null, "sibling_qid": "MUM-2026-05-3156-Q001", "sibling_text": "type of ships chemical tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Certificate of Fitness and MARPOL Annex II in practice", "cross_family": false }, { "answer_id": "BCH-IBC-A-001", "score": 0.7641165256500244, "sibling_score": 0.7641165256500244, "answer_score": null, "sibling_qid": "CHE-2026-03-0128-Q001", "sibling_text": "type of chemical tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type 1, Type 2 and Type 3 chemical tankers — the ship-type classification", "cross_family": false } ] }, { "qid": "CHE-2025-11-0085-Q001", "text": "Type of ship sailed.", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2025-11-0085", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8456622958183289, "sibling_score": 0.8456622958183289, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.844673752784729, "sibling_score": 0.844673752784729, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7923667430877686, "sibling_score": 0.7923667430877686, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "CHE-2025-11-0085-Q006", "text": "What is inspected during 6 monthly and annual maintenance of immersion suit ?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "LSA Code", "tid": "CHE-2025-11-0085", "tray": "review", "candidates": [ { "answer_id": "LB-SURV-C-003", "score": 0.7628495693206787, "sibling_score": 0.7628495693206787, "answer_score": 0.47723321318626405, "sibling_qid": "CHE-2026-02-0103-Q002", "sibling_text": "immersion suit monthly 6 month and annual maintenance", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Routine maintenance ladder — weekly / monthly / quarterly / 6-monthly onboard checks", "cross_family": false }, { "answer_id": "LB-SURV-C-001", "score": 0.5926943421363831, "sibling_score": 0.5926943421363831, "answer_score": null, "sibling_qid": "KOL-2021-08-0544-Q002", "sibling_text": "as a 2nd what you will check in life boat for annual survey", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Annual thorough examination / SEQ survey of the lifeboat — scope, by whom, certificate", "cross_family": false }, { "answer_id": "LBT-TEST-B-002", "score": 0.5880740880966187, "sibling_score": 0.5880740880966187, "answer_score": null, "sibling_qid": "KOL-2026-05-4230-Q005", "sibling_text": "life boat 5 yearly maintanence static and dynamic testing", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Annual and 5-yearly lifeboat/davit tests (the servicing regime)", "cross_family": false } ] }, { "qid": "CHE-2025-11-0085-Q007", "text": "What should be the size of a horizontal manhole as per SOLAS ?", "family": "Risk & Safety Management", "subtopic": "Enclosed Space Entry", "tid": "CHE-2025-11-0085", "tray": "new", "candidates": [ { "answer_id": "DB-TBOX-C-001", "score": 0.5442882776260376, "sibling_score": 0.5442882776260376, "answer_score": 0.4156319320201874, "sibling_qid": "KOL-2026-01-1160-Q008", "sibling_text": "direction of minor axis of manhole", "sibling_family": "", "via": "sibling", "answer_title": "Manholes & deck openings — why the major axis runs fore-and-aft", "cross_family": false }, { "answer_id": "BLR-DRUM-005", "score": 0.5167291164398193, "sibling_score": 0.5167291164398193, "answer_score": 0.4157490417361259, "sibling_qid": "KOL-2021-11-1640-Q003", "sibling_text": "boiler manhole minor axis", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Boiler manhole-door minor-axis orientation — longitudinal vs transverse stress", "cross_family": true }, { "answer_id": "BC-HOPPER-G-001", "score": 0.4817877411842346, "sibling_score": 0.4817877411842346, "answer_score": null, "sibling_qid": "KOL-2026-01-1160-Q007", "sibling_text": "manhole door in topside tank", "sibling_family": "", "via": "sibling", "answer_title": "Hopper and topside tanks — what they are and their purpose", "cross_family": false } ] }, { "qid": "CHE-2025-11-0087-Q005", "text": "SOLAS requirements for oversized life jackets.", "family": "SOLAS - LSA & Lifeboats", "subtopic": "LSA Code", "tid": "CHE-2025-11-0087", "tray": "review", "candidates": [ { "answer_id": "LSA-LB-A-001", "score": 0.7759521007537842, "sibling_score": 0.7759521007537842, "answer_score": 0.44623822569847105, "sibling_qid": "CHE-2026-02-0103-Q001", "sibling_text": "solas regulation for oversize lifejacket", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "SOLAS requirements for lifeboats", "cross_family": false }, { "answer_id": "LRHR-B-001", "score": 0.6199691891670227, "sibling_score": 0.6199691891670227, "answer_score": null, "sibling_qid": "CHE-2025-08-0039-Q013", "sibling_text": "life raft requirement as per solas", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What does SOLAS require for liferafts on a cargo ship — how many, what capacity, and the forward raft?", "cross_family": false }, { "answer_id": "LRHR-A-001", "score": 0.6181690692901611, "sibling_score": 0.6181690692901611, "answer_score": 0.44588930308818814, "sibling_qid": "KOC-2025-01-0515-Q003", "sibling_text": "liferaft solas requirement", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "SOLAS requirement for liferafts on a cargo ship — number and total capacity", "cross_family": false } ] }, { "qid": "CHE-2025-11-0089-Q001", "text": "Ship Type: LPG", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2025-11-0089", "tray": "review", "candidates": [ { "answer_id": "LPG-LNG-009", "score": 0.7728608250617981, "sibling_score": 0.7728608250617981, "answer_score": 0.5063533306121826, "sibling_qid": "CHE-2026-04-0164-Q001", "sibling_text": "type of ship sailed lpg carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Gas-carrier fundamentals and ship-specific traps", "cross_family": false }, { "answer_id": "IGC-GAS-004", "score": 0.7016948461532593, "sibling_score": 0.7016948461532593, "answer_score": null, "sibling_qid": "KOL-2025-08-1014-Q002", "sibling_text": "type of ship sailed lpg classification of gas carriers of as per igc code", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Ship-type classification under the IGC Code — 1G / 2G / 2PG / 3G", "cross_family": true }, { "answer_id": "LPG-LNG-001", "score": 0.6929764747619629, "sibling_score": 0.6929764747619629, "answer_score": null, "sibling_qid": "MUM-2026-09-3961-Q001", "sibling_text": "how lpg ship differ from other ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "LPG vs LNG – properties, carriage and comparison", "cross_family": false } ] }, { "qid": "CHE-2025-11-0089-Q002", "text": "Illustrate the lifeboat winch braking arrangement.", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Davit / Release Gear", "tid": "CHE-2025-11-0089", "tray": "review", "candidates": [ { "answer_id": "DRG-B-002", "score": 0.806900680065155, "sibling_score": 0.806900680065155, "answer_score": 0.6154458314180374, "sibling_qid": "KOC-2022-01-0955-Q004", "sibling_text": "sectional diagram of lifeboat winch how lifeboat winch is hoisting with brake applies", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "The lifeboat winch — construction, hoisting and long-term maintenance", "cross_family": false }, { "answer_id": "DRG-B-003", "score": 0.7508162260055542, "sibling_score": 0.7508162260055542, "answer_score": null, "sibling_qid": "KOC-2025-01-0521-Q006", "sibling_text": "lifeboat brakes diagram", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Brakes — types, why two, and how the centrifugal brake works", "cross_family": false }, { "answer_id": "DRG-583-A-008", "score": 0.7128715515136719, "sibling_score": 0.7128715515136719, "answer_score": null, "sibling_qid": "KOC-2026-02-0831-Q009", "sibling_text": "draw lifeboat davit brake", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Davit safeties, and the limit switch", "cross_family": false } ] }, { "qid": "CHE-2025-11-0222-Q001", "text": "Whats your engine -MC C", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "CHE-2025-11-0222", "tray": "review", "candidates": [ { "answer_id": "MCC-MEB-P01-001", "score": 0.7461112141609192, "sibling_score": 0.7461112141609192, "answer_score": 0.5005452156066894, "sibling_qid": "MUM-2026-02-2576-Q003", "sibling_text": "engine type mc c", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "MC-C (\"Compact\") engine — design and the main constructional differences from MC", "cross_family": false }, { "answer_id": "ALT-MTN-B-001", "score": 0.7440357208251953, "sibling_score": 0.7440357208251953, "answer_score": null, "sibling_qid": "MUM-2026-02-1281-Q001", "sibling_text": "main engine specification mc c", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Routine onboard alternator maintenance checks", "cross_family": false }, { "answer_id": "MCC-MEB-P02-002", "score": 0.725969135761261, "sibling_score": 0.725969135761261, "answer_score": null, "sibling_qid": "MUM-2026-06-3364-Q007", "sibling_text": "which engine mc c", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "MAN B&W nomenclature — and what MC, MC-C, ME-B, ME-C actually mean", "cross_family": true } ] }, { "qid": "CHE-2025-11-0222-Q007", "text": "oil you see on the boiler water gauge glass action and remedy", "family": "Boilers - Operations & Firing", "subtopic": "Scum / Blow Down", "tid": "CHE-2025-11-0222", "tray": "review", "candidates": [ { "answer_id": "SBD-001", "score": 0.812717616558075, "sibling_score": 0.812717616558075, "answer_score": 0.6291918218135834, "sibling_qid": "KOL-2026-03-3936-Q002", "sibling_text": "traces of oil found in boiler gauge glass how do you counteract", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "You find oil in the boiler gauge glass — causes, how you identify the source, and your actions as 2/E (including if manoeuvring). What is carryover?", "cross_family": false }, { "answer_id": "BCFS-001", "score": 0.5795150101184845, "sibling_score": null, "answer_score": 0.5795150101184845, "sibling_qid": "", "sibling_text": "detecting and responding to oil contamination in the hot well or cascade tank detect oil film or sheen on the observation tank surface smell oiliness in the gauge glass oil in water monitor alarm if fitted foaming or an unstable boiler water level never let oil into the boiler it forms an insulating film on heating surfaces causing local overheating tube bulging and failure and it makes the water ", "sibling_family": "", "via": "answer_title", "answer_title": "Detecting and responding to oil contamination in the hot well or cascade tank", "cross_family": false }, { "answer_id": "BLR-TUBE-P02-004", "score": 0.5614220023155212, "sibling_score": null, "answer_score": 0.5614220023155212, "sibling_qid": "", "sibling_text": "oil in the cascade hotwell tracing the leaking element symptom oil film sheen in the cascade observation tank or hotwell contamination of the condensate feed safety critical first action do not pump contaminated water to the boiler oil forms an insulating film on the water side causing local overheating bagging blistering and tube failure", "sibling_family": "", "via": "answer_title", "answer_title": "Oil in the cascade/hotwell: tracing the leaking element", "cross_family": false } ] }, { "qid": "CHE-2025-11-0223-Q006", "text": "boiler sliding feet arrangement. Arrangement given for expansion of pipelines on boiler.", "family": "Heat Exchangers & Coolers", "subtopic": "Expansion Arrangement", "tid": "CHE-2025-11-0223", "tray": "new", "candidates": [ { "answer_id": "BLR-TUBE-P01-003", "score": 0.6322184205055237, "sibling_score": 0.6322184205055237, "answer_score": 0.5075290888547898, "sibling_qid": "KOL-2017-04-1287-Q005", "sibling_text": "boiler tubes expansion arrangement", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "02. Thermal expansion arrangements for boiler tubes", "cross_family": true }, { "answer_id": "BLR-TUBE-P02-001", "score": 0.5608634948730469, "sibling_score": 0.5608634948730469, "answer_score": null, "sibling_qid": "KOL-2018-01-1347-Q005", "sibling_text": "how is expansion of tubes accomodated in boilers ege how is leakage prevented in such an arrangement due to expansion", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Identifying a boiler tube leak and finding the leaking tube", "cross_family": true }, { "answer_id": "BLR-TUBE-P01-001", "score": 0.5578872561454773, "sibling_score": 0.5578872561454773, "answer_score": 0.5153789103031158, "sibling_qid": "KOL-2019-01-3207-Q003", "sibling_text": "how boiler tubes are fitted", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "01. Attaching, fitting and supporting boiler tubes", "cross_family": true } ] }, { "qid": "CHE-2025-11-0309-Q004", "text": "Zener barrier?", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "CHE-2025-11-0309", "tray": "review", "candidates": [ { "answer_id": "EPC-P02-03", "score": 0.689080536365509, "sibling_score": 0.689080536365509, "answer_score": 0.4367011934518814, "sibling_qid": "CHE-2026-02-0333-Q002", "sibling_text": "zener barrier", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Where is a zener diode used on board and why — voltage regulator, AVR, clipper — and explain one application in detail.", "cross_family": false }, { "answer_id": "EPC-P02-01", "score": 0.688621997833252, "sibling_score": 0.688621997833252, "answer_score": 0.47165409922599794, "sibling_qid": "MUM-2026-03-2019-Q005", "sibling_text": "zener barrier", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a zener diode? Draw its symbol, explain its working principle, and draw and explain its characteristic curve including the zener (breakdown) voltage.", "cross_family": false }, { "answer_id": "HAZ-EX-B-001", "score": 0.6212887167930603, "sibling_score": 0.6212887167930603, "answer_score": null, "sibling_qid": "CHE-2026-03-0358-Q005", "sibling_text": "zener barrier working in intrinsically safe", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Intrinsically safe (Ex i) equipment — what it is, how it works, where it is used, how you identify it", "cross_family": false } ] }, { "qid": "CHE-2025-11-0309-Q006", "text": "[CROSS] Type of ship?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2025-11-0309", "tray": "review", "candidates": [ { "answer_id": "LLST-AB-001", "score": 0.6666489243507385, "sibling_score": 0.6666489243507385, "answer_score": 0.4359723925590515, "sibling_qid": "CHE-2026-05-0614-Q001", "sibling_text": "start from type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.6436524987220764, "sibling_score": 0.6436524987220764, "answer_score": null, "sibling_qid": "MUM-2026-02-1280-Q001", "sibling_text": "type of ship done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "KGF-A-004", "score": 0.42056378871202466, "sibling_score": null, "answer_score": 0.42056378871202466, "sibling_qid": "", "sibling_text": "hull midship cross section draw identify", "sibling_family": "", "via": "answer_title", "answer_title": "Hull / midship cross-section: draw & identify", "cross_family": false } ] }, { "qid": "CHE-2025-11-0309-Q009", "text": "[CROSS] What is primary and secondary barrier?", "family": "Cargo Ops - Gas Carriers", "subtopic": "Cargo Tank Construction", "tid": "CHE-2025-11-0309", "tray": "new", "candidates": [ { "answer_id": "GC-TANK-003", "score": 0.44629502296447754, "sibling_score": 0.44629502296447754, "answer_score": 0.26561922430992124, "sibling_qid": "KOL-2024-08-0852-Q002", "sibling_text": "primary and secondary barrier of cargo tank", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "What is a Type B independent tank and the purpose of a partial secondary barrier?", "cross_family": false }, { "answer_id": "SOLAS12-BC-F-001", "score": 0.42849549651145935, "sibling_score": 0.42849549651145935, "answer_score": 0.3397184401750564, "sibling_qid": "KOL-2019-04-0279-Q004", "sibling_text": "what are the primary secondary bariers for a bulk carier", "sibling_family": "", "via": "sibling", "answer_title": "Barriers, foremost bulkheads, hatchways & double-side skin", "cross_family": false }, { "answer_id": "BATT-TYPE-005", "score": 0.3728584945201874, "sibling_score": 0.3728584945201874, "answer_score": null, "sibling_qid": "KOC-2023-03-1239-Q005", "sibling_text": "primary cell and secondary cell", "sibling_family": "Electrical - 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Protection & Relays", "via": "sibling", "answer_title": "Overcurrent vs overload relay — difference, working, settings and testing", "cross_family": true }, { "answer_id": "PTRIP-222-002", "score": 0.6799178123474121, "sibling_score": 0.6799178123474121, "answer_score": null, "sibling_qid": "KOC-2024-10-1410-Q010", "sibling_text": "preferential trip and overload trip when it happens", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Stages, load-shedding sequence, settings, time delays and loads shed", "cross_family": true } ] }, { "qid": "CHE-2025-11-0313-Q001", "text": "Attempt 2", "family": "__META__ (non-exam)", "subtopic": "", "tid": "CHE-2025-11-0313", "tray": "new", "candidates": [ { "answer_id": "AV6-P05-01", "score": 0.5012385845184326, "sibling_score": 0.5012385845184326, "answer_score": null, "sibling_qid": "KOC-2025-03-0558-Q007", "sibling_text": "seemp 2", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP Part II — IMO DCS plan and contents", "cross_family": true }, { "answer_id": "DUS-P1-01", "score": 0.4848231375217438, "sibling_score": 0.4848231375217438, "answer_score": null, "sibling_qid": "KOC-2025-02-1485-Q005", "sibling_text": "drychecks as 2e", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Drydock preparation as 2E — full workflow from office confirmation to entry", "cross_family": true }, { "answer_id": "LO-TEST-P01-005", "score": 0.4390476942062378, "sibling_score": 0.4390476942062378, "answer_score": null, "sibling_qid": "KOL-2018-04-1367-Q003", "sibling_text": "2 lo contaimination me", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Lube-oil properties, types and selection by duty", "cross_family": true } ] }, { "qid": "CHE-2025-11-0313-Q006", "text": "Exi exe,zener barrier", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "CHE-2025-11-0313", "tray": "new", "candidates": [ { "answer_id": "EPC-P02-03", "score": 0.5524232387542725, "sibling_score": 0.5524232387542725, "answer_score": 0.3678081542253494, "sibling_qid": "MUM-2026-07-3813-Q002", "sibling_text": "zener barrier full explanation every component", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Where is a zener diode used on board and why — voltage regulator, AVR, clipper — and explain one application in detail.", "cross_family": false }, { "answer_id": "EPC-P02-01", "score": 0.5519813895225525, "sibling_score": 0.5519813895225525, "answer_score": 0.4005625486373901, "sibling_qid": "MUM-2026-02-1957-Q003", "sibling_text": "zener barrier full explanation every component", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a zener diode? Draw its symbol, explain its working principle, and draw and explain its characteristic curve including the zener (breakdown) voltage.", "cross_family": false }, { "answer_id": "HAZ-EX-B-001", "score": 0.5307804346084595, "sibling_score": 0.5307804346084595, "answer_score": null, "sibling_qid": "CHE-2026-03-0358-Q005", "sibling_text": "zener barrier working in intrinsically safe", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Intrinsically safe (Ex i) equipment — what it is, how it works, where it is used, how you identify it", "cross_family": false } ] }, { "qid": "CHE-2025-11-0313-Q010", "text": "Motor panel what all included ... motor protection", "family": "Electrical - Motors & Starters", "subtopic": "Induction Motor (General / Working)", "tid": "CHE-2025-11-0313", "tray": "review", "candidates": [ { "answer_id": "MSB-ESB-E-001", "score": 0.8111840486526489, "sibling_score": 0.8111840486526489, "answer_score": null, "sibling_qid": "KOC-2026-01-1690-Q008", "sibling_text": "motor panel what all included motor protection", "sibling_family": "", "via": "sibling", "answer_title": "What safeties, protection trips, relays and alarms are provided on the MSB / ESB, and how are they tested?", "cross_family": false }, { "answer_id": "IMSP-007", "score": 0.7546674609184265, "sibling_score": 0.7546674609184265, "answer_score": 0.5724193215370178, "sibling_qid": "MUM-2025-05-1499-Q005", "sibling_text": "motor shorts ckt protection", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What safeties and protections are provided in an induction motor and its starter — overload, short-circuit, thermal? What about a motor on deck, and large three-phase motors?", "cross_family": false }, { "answer_id": "MNS-020", "score": 0.7313668131828308, "sibling_score": 0.7313668131828308, "answer_score": 0.5733933866024017, "sibling_qid": "KOC-2025-04-1525-Q006", "sibling_text": "types of motor protection", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Motor protections and safeties — the types, and the gangway motor", "cross_family": false } ] }, { "qid": "CHE-2025-11-0449-Q001", "text": "If after overhauling, new piston ring button clearances are less, What effect will it have on the engine on running?", "family": "2-Stroke - Components (Other)", "subtopic": "Piston Rings", "tid": "CHE-2025-11-0449", "tray": "review", "candidates": [ { "answer_id": "PRING-CLR-A-002", "score": 0.8002187609672546, "sibling_score": 0.8002187609672546, "answer_score": null, "sibling_qid": "MUM-2025-11-2470-Q001", "sibling_text": "if after overhauling new piston ring button clearances are less what effect will it have on the engine on running", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston-ring clearances and calibration — butt, axial, radial, wear limits", "cross_family": false }, { "answer_id": "AC-VE-005", "score": 0.5051827400922775, "sibling_score": null, "answer_score": 0.5051827400922775, "sibling_qid": "", "sibling_text": "if bumping clearance is more or less what happens and how do you reduce or adjust it bumping clearance crown to head valve plate gap at tdc sets the clearance volume too much more re expansion low ve and fad slow pump up may not reach pressure", "sibling_family": "", "via": "answer_title", "answer_title": "If bumping clearance is more or less, what happens, and how do you reduce or adjust it?", "cross_family": false }, { "answer_id": "CYL-LINER-P03-009", "score": 0.4826918482780456, "sibling_score": null, "answer_score": 0.4826918482780456, "sibling_qid": "", "sibling_text": "running in after a new liner and new piston rings procedure and why a new liner and new rings do need running in the surfaces are not yet bedded skip it and you get blow by scuffing micro seizure and scavenge fire risk", "sibling_family": "", "via": "answer_title", "answer_title": "Running-in after a new liner and new piston rings — procedure and why", "cross_family": false } ] }, { "qid": "CHE-2025-11-0449-Q002", "text": "How to ensure that steam coming out of the superheated boiler is completely dry ?", "family": "Boilers - Steam Fundamentals", "subtopic": "Saturated / Superheated Steam", "tid": "CHE-2025-11-0449", "tray": "review", "candidates": [ { "answer_id": "SH-332-006", "score": 0.8243710398674011, "sibling_score": 0.8243710398674011, "answer_score": 0.6478249073028565, "sibling_qid": "MUM-2026-06-3379-Q002", "sibling_text": "how to ensure that steam coming out of the superheated boiler is completely dry", "sibling_family": "Boilers - Steam Fundamentals", "via": "sibling", "answer_title": "Ensuring steam leaving a superheated boiler is dry", "cross_family": false }, { "answer_id": "SH-332-003", "score": 0.6385971903800964, "sibling_score": 0.6385971903800964, "answer_score": 0.5068505465984344, "sibling_qid": "CHE-2026-02-0478-Q009", "sibling_text": "what is saturated steam it is wet or dry steam and what is superheated steam", "sibling_family": "Boilers - Steam Fundamentals", "via": "sibling", "answer_title": "Superheated steam, degree of superheat, and saturated vs superheated", "cross_family": false }, { "answer_id": "SH-332-004", "score": 0.6099274158477783, "sibling_score": 0.6099274158477783, "answer_score": null, "sibling_qid": "KOL-2020-02-1530-Q003", "sibling_text": "different way to achieve superheated steam", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Types of superheater and methods of achieving superheating", "cross_family": true } ] }, { "qid": "CHE-2025-11-0450-Q004", "text": "Status of written and oral", "family": "__META__ (non-exam)", "subtopic": "", "tid": "CHE-2025-11-0450", "tray": "review", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.760685384273529, "sibling_score": 0.760685384273529, "answer_score": null, "sibling_qid": "MUM-2026-05-3187-Q001", "sibling_text": "status of other orals and written", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.5465021729469299, "sibling_score": 0.5465021729469299, "answer_score": null, "sibling_qid": "MUM-2026-05-2995-Q001", "sibling_text": "written and oral status type of ship and company", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": true }, { "answer_id": "AE-CRP-005", "score": 0.42788419127464294, "sibling_score": 0.42788419127464294, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q001", "sibling_text": "type of vessel engine make written and oral status", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": true } ] }, { "qid": "CHE-2025-11-0450-Q005", "text": "Which engine-MC-C", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "CHE-2025-11-0450", "tray": "review", "candidates": [ { "answer_id": "EGTP-P02-005", "score": 0.7174751162528992, "sibling_score": 0.7174751162528992, "answer_score": 0.5044202983379363, "sibling_qid": "MUM-2026-06-3500-Q002", "sibling_text": "mc vs me engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "MC / MC-C / ME-C and Electronically Controlled Engines", "cross_family": false }, { "answer_id": "MCC-MEB-P01-001", "score": 0.7079682946205139, "sibling_score": 0.7079682946205139, "answer_score": 0.46608917117118837, "sibling_qid": "MUM-2026-02-2576-Q003", "sibling_text": "engine type mc c", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "MC-C (\"Compact\") engine — design and the main constructional differences from MC", "cross_family": false }, { "answer_id": "MCC-MEB-P02-002", "score": 0.7030687928199768, "sibling_score": 0.7030687928199768, "answer_score": null, "sibling_qid": "MUM-2026-06-3364-Q007", "sibling_text": "which engine mc c", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "MAN B&W nomenclature — and what MC, MC-C, ME-B, ME-C actually mean", "cross_family": true } ] }, { "qid": "CHE-2025-11-0450-Q008", "text": "T/C emergency lubrication ?", "family": "Turbocharger", "subtopic": "TC Bearing", "tid": "CHE-2025-11-0450", "tray": "review", "candidates": [ { "answer_id": "CYL-LUB-B-006", "score": 0.6890937685966492, "sibling_score": 0.6890937685966492, "answer_score": 0.4766354292631149, "sibling_qid": "KOC-2026-08-2111-Q005", "sibling_text": "when will be give the emergency lubrication", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Lubricator / CCU failure and emergency cylinder-oil supply", "cross_family": false }, { "answer_id": "TC-OVHL-001", "score": 0.6605788469314575, "sibling_score": 0.6605788469314575, "answer_score": null, "sibling_qid": "MUM-2025-12-1227-Q008", "sibling_text": "tc lubrication maintenance everything abt t c", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Main-engine turbocharger overhaul — procedure and post-overhaul checks", "cross_family": false }, { "answer_id": "TURBO-CS-P02-001", "score": 0.6004717946052551, "sibling_score": 0.6004717946052551, "answer_score": null, "sibling_qid": "CHE-2026-05-0605-Q003", "sibling_text": "tc types and how bearing lubricated", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharger bearings — types and lubrication", "cross_family": false } ] }, { "qid": "CHE-2025-11-0452-Q002", "text": "By seeing boiler furnace sight glass what all the checks? 3.Why vanes in a centrifugal pump?", "family": "Boilers - Burner & Combustion Control", "subtopic": "Burner / Flame Failure / Combustion", "tid": "CHE-2025-11-0452", "tray": "new", "candidates": [ { "answer_id": "ACJCW-002", "score": 0.6194930076599121, "sibling_score": 0.6194930076599121, "answer_score": null, "sibling_qid": "KOL-2018-06-1380-Q001", "sibling_text": "how air cooler temp is maintained which valve to throttle and why boiler gauge glass water level posible from far how exhaust valve opening hydraulic ok and the closing spring air ok why no spring pressure reducing valve how centrifugal pump developes vacuum suction saurav paul ext paul int rao", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Maintaining air-cooler outlet temperature and which valve to throttle", "cross_family": true }, { "answer_id": "PCD-P03-01", "score": 0.613998532295227, "sibling_score": 0.613998532295227, "answer_score": 0.4702978253364563, "sibling_qid": "MUM-2026-05-3078-Q006", "sibling_text": "overhaul of centrifugal pump checks on that", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Centrifugal pump overhaul — procedure, checks, clearances and survey evidence", "cross_family": true }, { "answer_id": "PCD-P02-06", "score": 0.6123587489128113, "sibling_score": 0.6123587489128113, "answer_score": null, "sibling_qid": "CHE-2026-05-0596-Q001", "sibling_text": "checks on centrifugal pump shaft type of wear or deformation and its exact location on the shaft", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Checking pump shaft trueness / bend and static-vs-dynamic balancing", "cross_family": true } ] }, { "qid": "CHE-2025-11-0452-Q003", "text": "how will you stop fresh water generator?", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "CHE-2025-11-0452", "tray": "new", "candidates": [ { "answer_id": "ALT-MTN-B-001", "score": 0.5838810801506042, "sibling_score": 0.5838810801506042, "answer_score": null, "sibling_qid": "MUM-2023-05-0950-Q007", "sibling_text": "suppose your generator is not stopping from control room after stopping your action", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Routine onboard alternator maintenance checks", "cross_family": true }, { "answer_id": "VAC-COND-002", "score": 0.5780976414680481, "sibling_score": 0.5780976414680481, "answer_score": null, "sibling_qid": "KOL-2026-07-4255-Q006", "sibling_text": "fresh water generator not getting vaccum why any 6 reasons", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Low vacuum, suction loss and failure to build vacuum — the reasons", "cross_family": false }, { "answer_id": "FWG-RO-001", "score": 0.5738760828971863, "sibling_score": 0.5738760828971863, "answer_score": null, "sibling_qid": "MUM-2026-07-3709-Q006", "sibling_text": "fresh water generator not getting vacuum why any 6 reasons", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "How is vacuum created in the FWG, why does it run under vacuum, and what if the vacuum will not come?", "cross_family": false } ] }, { "qid": "CHE-2025-11-0453-Q002", "text": "What clearances are checked in cross head.", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Crosshead Bearing", "tid": "CHE-2025-11-0453", "tray": "review", "candidates": [ { "answer_id": "XHEAD-303-005", "score": 0.6853494644165039, "sibling_score": 0.6853494644165039, "answer_score": 0.3911696046590805, "sibling_qid": "KOL-2016-10-1245-Q002", "sibling_text": "cross head all clearance", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead guide and shoe clearances: how and where taken, limits", "cross_family": false }, { "answer_id": "CXH-BRG-FINAL-1-006", "score": 0.549062967300415, "sibling_score": 0.549062967300415, "answer_score": 0.3677996426820755, "sibling_qid": "MUM-2024-10-0964-Q006", "sibling_text": "crosshead clearance position and where clearnace taken guide strips function", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead & guide-shoe clearances: how, where, how much, piston position & why", "cross_family": false }, { "answer_id": "XHD-BRG-C-003", "score": 0.5378367304801941, "sibling_score": 0.5378367304801941, "answer_score": null, "sibling_qid": "KOC-2024-05-1840-Q001", "sibling_text": "crosshead head related clearances and its limits", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "C. Crosshead and guide-shoe clearances: how many, how measured, piston position and why", "cross_family": false } ] }, { "qid": "CHE-2025-11-0453-Q005", "text": "Procedure for cast iron welding and the electrode used.", "family": "Workshop & Welding", "subtopic": "Cast Iron Welding", "tid": "CHE-2025-11-0453", "tray": "review", "candidates": [ { "answer_id": "WELD-B-001", "score": 0.7679407000541687, "sibling_score": 0.7679407000541687, "answer_score": 0.48416819572448727, "sibling_qid": "MUM-2026-06-3641-Q001", "sibling_text": "cast iron welding which electrode", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding & crack-repair of aluminium and cast iron, including metal stitching", "cross_family": false }, { "answer_id": "LH-ELEC-003", "score": 0.5075537115335464, "sibling_score": null, "answer_score": 0.5075537115335464, "sibling_qid": "", "sibling_text": "3 how do you select or order the correct welding electrode or rod match to base material and strength first mild steel high tensile stainless cast iron this fixes the electrode family then coating type for the duty rutile e g e6013 general basic low hydrogen e7018 crack sensitive or high tensile", "sibling_family": "", "via": "answer_title", "answer_title": "3. How do you select or order the correct welding electrode or rod?", "cross_family": false }, { "answer_id": "WELD-B-006", "score": 0.4807838439941406, "sibling_score": null, "answer_score": 0.4807838439941406, "sibling_qid": "", "sibling_text": "welding electrodes selection storage and handling selection match electrode to parent metal to welding position to available current type ac dc and size to plate thickness low hydrogen basic coated electrodes are moisture sensitive absorbed moisture becomes hydrogen in the arc causes porosity and hydrogen cold cracking", "sibling_family": "", "via": "answer_title", "answer_title": "Welding electrodes — selection, storage and handling", "cross_family": false } ] }, { "qid": "CHE-2025-11-0454-Q001", "text": "stopping procedure of fresh water generator", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "CHE-2025-11-0454", "tray": "new", "candidates": [ { "answer_id": "VAC-COND-002", "score": 0.5729683041572571, "sibling_score": 0.5729683041572571, "answer_score": null, "sibling_qid": "KOL-2026-07-4255-Q006", "sibling_text": "fresh water generator not getting vaccum why any 6 reasons", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Low vacuum, suction loss and failure to build vacuum — the reasons", "cross_family": false }, { "answer_id": "ALT-MTN-B-001", "score": 0.5727198123931885, "sibling_score": 0.5727198123931885, "answer_score": null, "sibling_qid": "MUM-2023-05-0950-Q007", "sibling_text": "suppose your generator is not stopping from control room after stopping your action", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Routine onboard alternator maintenance checks", "cross_family": true }, { "answer_id": "FWG-RO-001", "score": 0.5720499753952026, "sibling_score": 0.5720499753952026, "answer_score": null, "sibling_qid": "MUM-2026-07-3709-Q006", "sibling_text": "fresh water generator not getting vacuum why any 6 reasons", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "How is vacuum created in the FWG, why does it run under vacuum, and what if the vacuum will not come?", "cross_family": false } ] }, { "qid": "CHE-2025-11-0455-Q001", "text": "Internal Satish Kumar sir", "family": "__META__ (non-exam)", "subtopic": "", "tid": "CHE-2025-11-0455", "tray": "new", "candidates": [ { "answer_id": "ISM-SMCDOC-A-002", "score": 0.4161638021469116, "sibling_score": 0.4161638021469116, "answer_score": null, "sibling_qid": "KOL-2016-09-0014-Q006", "sibling_text": "ism doc sms interim doc and sms by km rao", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Interim DOC — when, why, how, and how long", "cross_family": true }, { "answer_id": "SOFT-START-P01-001", "score": 0.41358572244644165, "sibling_score": 0.41358572244644165, "answer_score": null, "sibling_qid": "KOC-2025-01-1472-Q009", "sibling_text": "soft starter internal ubaidur rahman", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Soft Starter — Definition, Purpose and Working", "cross_family": true }, { "answer_id": "EEDI-B-002", "score": 0.3981485962867737, "sibling_score": 0.3981485962867737, "answer_score": null, "sibling_qid": "KOL-2023-03-0725-Q005", "sibling_text": "req and attained eedi by srinivasan sir", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Attained EEDI, required EEDI, reference line value and reduction factor", "cross_family": true } ] }, { "qid": "CHE-2025-11-0455-Q002", "text": "External Mohan Pal sir", "family": "__META__ (non-exam)", "subtopic": "", "tid": "CHE-2025-11-0455", "tray": "new", "candidates": [ { "answer_id": "ISMNC-002", "score": 0.36408531665802, "sibling_score": 0.36408531665802, "answer_score": null, "sibling_qid": "MUM-2023-08-0118-Q007", "sibling_text": "what is mnc questions only asked by external name don t know", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a major non-conformity under the ISM Code? Give the definition and name some.", "cross_family": true }, { "answer_id": "ETP-344-P01-001", "score": 0.3568550646305084, "sibling_score": 0.3568550646305084, "answer_score": null, "sibling_qid": "CHE-2025-12-0467-Q007", "sibling_text": "power calculation sfoc date 30 12 2025 internal ss moorthy sir external patro sir", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": true }, { "answer_id": "AEGOV-001", "score": 0.34816789627075195, "sibling_score": 0.34816789627075195, "answer_score": null, "sibling_qid": "KOL-2021-07-3992-Q002", "sibling_text": "internal senthil sir external bhowmik sir 1 specification of m e and d g 2 type of governor of d g and m e and technical specifications", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE / Generator Governor — Type and Working", "cross_family": true } ] }, { "qid": "CHE-2025-11-0455-Q003", "text": "Applied for Fn 6", "family": "__META__ (non-exam)", "subtopic": "", "tid": "CHE-2025-11-0455", "tray": "new", "candidates": [ { "answer_id": "CHAIN-TENS-A-003", "score": 0.5705356001853943, "sibling_score": 0.5705356001853943, "answer_score": null, "sibling_qid": "MUM-2026-02-2546-Q006", "sibling_text": "6 repeat", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "Chain Tightening Procedure — MC / MC-C / ME", "cross_family": false }, { "answer_id": "CB-ACB-F-001", "score": 0.5444083213806152, "sibling_score": 0.5444083213806152, "answer_score": null, "sibling_qid": "MUM-2022-07-1329-Q003", "sibling_text": "sf 6", "sibling_family": "", "via": "sibling", "answer_title": "ACB function & working principle in the ship distribution system", "cross_family": false }, { "answer_id": "COT-P02-10", "score": 0.5309869050979614, "sibling_score": 0.5309869050979614, "answer_score": null, "sibling_qid": "KOC-2025-10-2079-Q013", "sibling_text": "ig system latest amendments got function 6 only", "sibling_family": "Cargo Ops - 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General", "subtopic": "Boiler Miscellaneous", "tid": "CHE-2025-11-0456", "tray": "new", "candidates": [ { "answer_id": "A6-NSEC-002", "score": 0.5861955881118774, "sibling_score": 0.5861955881118774, "answer_score": null, "sibling_qid": "KOC-2023-03-0175-Q004", "sibling_text": "nox tech file why used why no nox file for boiler", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "NOx Technical Code vs NOx Technical File", "cross_family": true }, { "answer_id": "COT-P02-03", "score": 0.5840957164764404, "sibling_score": 0.5840957164764404, "answer_score": null, "sibling_qid": "KOL-2019-10-1492-Q012", "sibling_text": "ig why taken from boiler not from main engine", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Compare a boiler-flue inert-gas system with a dedicated inert-gas generator and explain why suitable boiler flue gas—not main-engine exhaust—is normally used.", "cross_family": true }, { "answer_id": "AV6-P02-02", "score": 0.5805612802505493, "sibling_score": 0.5805612802505493, "answer_score": null, "sibling_qid": "KOL-2022-07-0660-Q005", "sibling_text": "why boiler doesn t have nox", "sibling_family": "MARPOL - 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How do you check winding insulation, IR, hotspots and winding condition?", "cross_family": true } ] }, { "qid": "CHE-2025-12-0097-Q009", "text": "How many items are there in MLC. As second engineer which item is applicable for", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "CHE-2025-12-0097", "tray": "new", "candidates": [ { "answer_id": "STEEL-GR-001", "score": 0.5106543302536011, "sibling_score": 0.5106543302536011, "answer_score": null, "sibling_qid": "KOL-2018-06-0188-Q001", "sibling_text": "materials used in ship building 2 grades of steel 3 tensile test 4 additional safety measures in bulk carrier 5 position of nozzle in co2 flooding in cargo hold 6 what you will do as a second engineer under mlc convention fun 6", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Materials and steel grades for ship and hull construction", "cross_family": true }, { "answer_id": "ISM-2E-C-001", "score": 0.4882357120513916, "sibling_score": 0.4882357120513916, "answer_score": null, "sibling_qid": "KOC-2024-01-0274-Q006", "sibling_text": "ism survey as second engineer other than documentation and machinery", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM audit / survey preparation as Second Engineer — beyond the paperwork", "cross_family": true }, { "answer_id": "LLC-SURV-P01-001", "score": 0.4818216860294342, "sibling_score": 0.4818216860294342, "answer_score": null, "sibling_qid": "MUM-2024-07-0188-Q005", "sibling_text": "ll survey things to check as 2nd engineer", "sibling_family": "", "via": "sibling", "answer_title": "Load line survey preparation as Second Engineer: engine-room scope, machinery openings, tanks/vents, valves and overboard checks", "cross_family": false } ] }, { "qid": "CHE-2025-12-0098-Q002", "text": "You jumped out to sea, what will you do ?", "family": "SOLAS - 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Fire Safety", "via": "sibling", "answer_title": "CO2 system safeties, CO2-room requirements, alarms and ventilation", "cross_family": true } ] }, { "qid": "CHE-2025-12-0227-Q001", "text": "Engine specifications", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "CHE-2025-12-0227", "tray": "review", "candidates": [ { "answer_id": "ENG-NOM-006", "score": 0.8369342684745789, "sibling_score": 0.8369342684745789, "answer_score": null, "sibling_qid": "CHE-2026-03-0181-Q001", "sibling_text": "engine specification", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Short-form asks: SMC-C, LMC, and ME vs MC quickly", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7628129124641418, "sibling_score": 0.7628129124641418, "answer_score": null, "sibling_qid": "MUM-2026-07-3719-Q006", "sibling_text": "type of engine and it s specification", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false }, { "answer_id": "ETP-344-P03-003", "score": 0.5393779158592223, "sibling_score": null, "answer_score": 0.5393779158592223, "sibling_qid": "", "sibling_text": "engine nomenclature layout mark number and engine constant designation order man b w cylinders stroke bore letter k l s g bore in cm m programme concept e electronic c camshaft design c compact b camshaft controlled exhaust hybrid mark number gi if gas injection tier rating stroke bore letters k short l long s super long g ultra long green the ratios are approximate design values not exact", "sibling_family": "", "via": "answer_title", "answer_title": "Engine nomenclature, layout, mark number and engine constant", "cross_family": false } ] }, { "qid": "CHE-2025-12-0228-Q001", "text": "Venugopal Moorthi What about your written ?", "family": "__META__ (non-exam)", "subtopic": "", "tid": "CHE-2025-12-0228", "tray": "new", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.3509831428527832, "sibling_score": 0.3509831428527832, "answer_score": null, "sibling_qid": "MUM-2026-05-3187-Q001", "sibling_text": "status of other orals and written", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": false }, { "answer_id": "VTA-TC-001", "score": 0.3012615144252777, "sibling_score": 0.3012615144252777, "answer_score": null, "sibling_qid": "KOL-2025-12-2030-Q002", "sibling_text": "what do you understand by vgt little bit xx", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "What VTA / VGT is and how it works", "cross_family": true }, { "answer_id": "AVR-EXC-B-001", "score": 0.29794764518737793, "sibling_score": 0.29794764518737793, "answer_score": null, "sibling_qid": "MUM-2026-02-1923-Q012", "sibling_text": "avr just explain word to word what amit sir explained and he impressed full and finish with ele oral", "sibling_family": "Electrical - 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Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "CHE-2025-12-0228-Q005", "text": "Why 2 safety valves are set and how set pressure, asper class regulation fitted 2 what class?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "CHE-2025-12-0228", "tray": "new", "candidates": [ { "answer_id": "ACRV-005", "score": 0.6270443797111511, "sibling_score": 0.6270443797111511, "answer_score": null, "sibling_qid": "CHE-2026-03-0497-Q003", "sibling_text": "what is the pressure difference between two safety valve set pressure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.6183361411094666, "sibling_score": 0.6183361411094666, "answer_score": null, "sibling_qid": "CHE-2026-09-3919-Q009", "sibling_text": "boiler safety valve setting in front of surveyor first and second safety valve pressure difference", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-002", "score": 0.5922985672950745, "sibling_score": 0.5922985672950745, "answer_score": null, "sibling_qid": "KOL-2026-02-3922-Q005", "sibling_text": "what is lifting of safety valve tell only within 3 percent of designated set pressure nothing else", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Acceptance limits and durations — the accumulation limit, the maximum test periods, and the action if the limit is exceeded", "cross_family": false } ] }, { "qid": "CHE-2025-12-0230-Q001", "text": "Engine specs and explain full", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "CHE-2025-12-0230", "tray": "review", "candidates": [ { "answer_id": "ENG-NOM-006", "score": 0.6866769790649414, "sibling_score": 0.6866769790649414, "answer_score": null, "sibling_qid": "CHE-2026-05-0585-Q001", "sibling_text": "main engine specification complete", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Short-form asks: SMC-C, LMC, and ME vs MC quickly", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.6228209733963013, "sibling_score": 0.6228209733963013, "answer_score": null, "sibling_qid": "KOL-2026-09-4295-Q002", "sibling_text": "engine name and full form", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false }, { "answer_id": "ETP-344-P03-003", "score": 0.39657914638519287, "sibling_score": null, "answer_score": 0.39657914638519287, "sibling_qid": "", "sibling_text": "engine nomenclature layout mark number and engine constant designation order man b w cylinders stroke bore letter k l s g bore in cm m programme concept e electronic c camshaft design c compact b camshaft controlled exhaust hybrid mark number gi if gas injection tier rating stroke bore letters k short l long s super long g ultra long green the ratios are approximate design values not exact", "sibling_family": "", "via": "answer_title", "answer_title": "Engine nomenclature, layout, mark number and engine constant", "cross_family": false } ] }, { "qid": "CHE-2025-12-0230-Q006", "text": "Swell and shrinkage", "family": "Boilers - Safety & Survey", "subtopic": "Boiler Strength Check", "tid": "CHE-2025-12-0230", "tray": "new", "candidates": [ { "answer_id": "DP-TX-006", "score": 0.5247930288314819, "sibling_score": 0.5247930288314819, "answer_score": 0.37421331852674483, "sibling_qid": "KOL-2025-08-2012-Q004", "sibling_text": "swell and shrink in boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler swell and shrink in relation to DP level measurement and control", "cross_family": true }, { "answer_id": "FOAM-SYS-P04-005", "score": 0.4877608120441437, "sibling_score": 0.4877608120441437, "answer_score": null, "sibling_qid": "MUM-2026-05-3157-Q008S2", "sibling_text": "expansion ratio values", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "5. What decides the foam expansion ratio", "cross_family": true }, { "answer_id": "FOAM-SYS-P04-001", "score": 0.48534095287323, "sibling_score": 0.48534095287323, "answer_score": 0.30837800055742265, "sibling_qid": "KOC-2024-11-0450-Q012", "sibling_text": "expansion ratio and values", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "4. 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How it working?", "family": "Auxiliary Equipment", "subtopic": "General Auxiliary Machinery", "tid": "CHE-2025-12-0232", "tray": "new", "candidates": [ { "answer_id": "ICAC-299-004", "score": 0.546434760093689, "sibling_score": 0.546434760093689, "answer_score": null, "sibling_qid": "KOL-2018-09-3189-Q003", "sibling_text": "air line intercooler and aftercooler purpose and arrangements to remove moisture from compressed air system", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Moisture removal: cooler, separator and drains", "cross_family": true }, { "answer_id": "PURIF-BOWL-P02-001", "score": 0.4835605323314667, "sibling_score": 0.4835605323314667, "answer_score": null, "sibling_qid": "KOL-2025-10-2015-Q008", "sibling_text": "purifier starting in manual mode electronic pneumatic and hydraulic controller used in er with examples of each controller where used", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Bowl opening, closing & manual desludging — mechanism, manual operation, failure causes", "cross_family": true }, { "answer_id": "REF-CYC-008", "score": 0.4777216911315918, "sibling_score": 0.4777216911315918, "answer_score": null, "sibling_qid": "KOL-2017-03-1280-Q003", "sibling_text": "secondary refrigerant control of temp through this arrangements", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "8. Secondary refrigeration systems, arrangements and advantages", "cross_family": true } ] }, { "qid": "CHE-2025-12-0233-Q004", "text": "CPR POP and Anti Polishing Ring", "family": "2-Stroke - Components (Other)", "subtopic": "Piston Rings", "tid": "CHE-2025-12-0233", "tray": "new", "candidates": [ { "answer_id": "PRING-CLR-A-001", "score": 0.6390447020530701, "sibling_score": 0.6390447020530701, "answer_score": 0.40348937958478925, "sibling_qid": "KOL-2024-12-1793-Q002", "sibling_text": "cpr piston rings with cl and pop type adv of pop details", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston-ring types — CPR, POP, the PC ring, and the pinned gap", "cross_family": false }, { "answer_id": "CYL-LINER-P04-005", "score": 0.6159647107124329, "sibling_score": 0.6159647107124329, "answer_score": 0.3799195483326912, "sibling_qid": "MUM-2026-07-3806-Q002", "sibling_text": "anti polishing ring", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Anti-polishing / flame / fire ring — location, purpose, material", "cross_family": false }, { "answer_id": "CYL-LINER-P02-008", "score": 0.5951371788978577, "sibling_score": 0.5951371788978577, "answer_score": 0.4273151397705078, "sibling_qid": "KOL-2019-07-1871-Q001", "sibling_text": "function of anti polishing ring diagram", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L8 · T044-PART_02-G008High", "cross_family": false } ] }, { "qid": "CHE-2025-12-0234-Q001", "text": "how sleeve bearing in TC is getting its oil supply..i told about hydrodynamic lubrication but he wanted a line diagram on oil passage", "family": "Turbocharger", "subtopic": "TC Bearing", "tid": "CHE-2025-12-0234", "tray": "review", "candidates": [ { "answer_id": "STT-BRG-007", "score": 0.6686288118362427, "sibling_score": 0.6686288118362427, "answer_score": null, "sibling_qid": "KOC-2025-08-1048-Q005", "sibling_text": "s t lube oil system diagram", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "6. Stern tube lubrication system — oil flow, gravity/header tanks, why gravity not pump", "cross_family": true }, { "answer_id": "TURBO-CS-P02-001", "score": 0.659662663936615, "sibling_score": 0.659662663936615, "answer_score": null, "sibling_qid": "CHE-2026-05-0605-Q003", "sibling_text": "tc types and how bearing lubricated", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharger bearings — types and lubrication", "cross_family": false }, { "answer_id": "STS-P02-002", "score": 0.6557326316833496, "sibling_score": 0.6557326316833496, "answer_score": null, "sibling_qid": "KOL-2022-07-1696-Q004", "sibling_text": "how stern tube bearing is lubricated line diagram", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "STS-P02-02 - Stern tube lubrication, header tank and oil properties", "cross_family": true } ] }, { "qid": "CHE-2025-12-0235-Q001", "text": "Explain Main engine LO system.", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "LO System Alarms / LO System Troubleshooting / LO Pump Arrangement", "tid": "CHE-2025-12-0235", "tray": "new", "candidates": [ { "answer_id": "CYL-LUB-A-004", "score": 0.523612380027771, "sibling_score": 0.523612380027771, "answer_score": null, "sibling_qid": "KOL-2018-01-3116-Q003", "sibling_text": "how cyl l o system working on me engine pulse lubrication explain", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Types of cylinder lubrication system", "cross_family": false }, { "answer_id": "LO-PR-ALM-001", "score": 0.5209750533103943, "sibling_score": 0.5209750533103943, "answer_score": null, "sibling_qid": "MUM-2023-11-2211-Q001", "sibling_text": "actions as 2e when lo lp alarm main engine", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main engine low lubricating-oil pressure — alarm, slowdown or trip: your actions as 2/E, and is the alarm true or false?", "cross_family": false }, { "answer_id": "LO-TEST-P01-005", "score": 0.5114562511444092, "sibling_score": 0.5114562511444092, "answer_score": null, "sibling_qid": "KOL-2018-08-1410-Q005", "sibling_text": "lo properties of trunk type engine", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Lube-oil properties, types and selection by duty", "cross_family": false } ] }, { "qid": "CHE-2025-12-0236-Q001", "text": "Type of crankshaft?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft Material", "tid": "CHE-2025-12-0236", "tray": "review", "candidates": [ { "answer_id": "CRANK-217-001", "score": 0.8183111548423767, "sibling_score": 0.8183111548423767, "answer_score": 0.5814498662948608, "sibling_qid": "MUM-2022-11-2717-Q003", "sibling_text": "type of crank shaft", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankshaft types and how the type is identified", "cross_family": false }, { "answer_id": "CRANK-217-003", "score": 0.7262246608734131, "sibling_score": 0.7262246608734131, "answer_score": 0.5210023045539856, "sibling_qid": "MUM-2022-10-1031-Q009", "sibling_text": "underslung crankshaft", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Underslung crankshaft", "cross_family": false }, { "answer_id": "HT-A-001", "score": 0.7225551605224609, "sibling_score": 0.7225551605224609, "answer_score": null, "sibling_qid": "MUM-2026-05-3334-Q006", "sibling_text": "crankshaft material and heat treatment", "sibling_family": "2-Stroke - 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What are your actions, the checks and crankcase inspection that follow, and what are the alarm levels?", "cross_family": true }, { "answer_id": "SB-PRG-B-002", "score": 0.361166775226593, "sibling_score": 0.361166775226593, "answer_score": null, "sibling_qid": "KOC-2026-02-2002-Q010", "sibling_text": "oring also no spare what will u do", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Worn rings, springs, O-rings and no-spare actions", "cross_family": true }, { "answer_id": "OPRC-SALV-001", "score": 0.32206273078918457, "sibling_score": 0.32206273078918457, "answer_score": null, "sibling_qid": "MUM-2026-06-3603-Q008", "sibling_text": "oprc explain", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "OPRC Convention — what it is, objectives, entry into force", "cross_family": true } ] }, { "qid": "CHE-2025-12-0237-Q002", "text": "purpose of nozzle ring in improved high lift safety valve", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "CHE-2025-12-0237", "tray": "new", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.6157699227333069, "sibling_score": 0.6157699227333069, "answer_score": null, "sibling_qid": "MUM-2026-06-3405-Q017", "sibling_text": "improved high lift safety valve details", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "TCS-059-P04-004", "score": 0.4340301394462585, "sibling_score": null, "answer_score": 0.4340301394462585, "sibling_qid": "", "sibling_text": "nozzle ring function gas path and nozzle type nozzle ring fixed shaped guide passages before the turbine accelerates and directs exhaust gas onto the blades at the correct entry angle across it pressure falls velocity rises it is not a pressure raising component", "sibling_family": "", "via": "answer_title", "answer_title": "Nozzle ring: function, gas path, and nozzle type", "cross_family": false }, { "answer_id": "DCB-OVH-003", "score": 0.4039204284548759, "sibling_score": null, "answer_score": 0.4039204284548759, "sibling_qid": "", "sibling_text": "safety while lowering the piston into the liner after overhaul lifting safety certified gear and correct swl piston lifting tool seated correctly load path clear nobody under the suspended load tag lines one director ring preparation rings free in grooves ring gaps and lock peg positions set exactly as the maker s assembly drawing requires ring compressor or liner lead in chamfer used so rings are", "sibling_family": "", "via": "answer_title", "answer_title": "Safety while lowering the piston into the liner after overhaul", "cross_family": false } ] }, { "qid": "CHE-2025-12-0238-Q004", "text": "purpose of nozzle ring in improved high lift safety valve. 5.", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "CHE-2025-12-0238", "tray": "new", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.592860758304596, "sibling_score": 0.592860758304596, "answer_score": null, "sibling_qid": "MUM-2026-03-2935-Q012", "sibling_text": "improved high lift safety valve top part", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "MR-DS-PV-B-006", "score": 0.5365189909934998, "sibling_score": 0.5365189909934998, "answer_score": null, "sibling_qid": "KOC-2026-09-2180-Q009", "sibling_text": "full bore safety valve construction", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "6. Deck isolating valve, deck relief/safety devices, and cargo-tank pressure", "cross_family": false }, { "answer_id": "TCS-059-P04-004", "score": 0.4201501429080963, "sibling_score": null, "answer_score": 0.4201501429080963, "sibling_qid": "", "sibling_text": "nozzle ring function gas path and nozzle type nozzle ring fixed shaped guide passages before the turbine accelerates and directs exhaust gas onto the blades at the correct entry angle across it pressure falls velocity rises it is not a pressure raising component", "sibling_family": "", "via": "answer_title", "answer_title": "Nozzle ring: function, gas path, and nozzle type", "cross_family": false } ] }, { "qid": "CHE-2025-12-0239-Q001", "text": "Type of Engine(I said DF)", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "CHE-2025-12-0239", "tray": "new", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.6034736037254333, "sibling_score": 0.6034736037254333, "answer_score": null, "sibling_qid": "KOL-2026-03-2048-Q001", "sibling_text": "type of engine done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.5704116821289062, "sibling_score": 0.5704116821289062, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "MEGI-304-002", "score": 0.570314884185791, "sibling_score": 0.570314884185791, "answer_score": null, "sibling_qid": "MUM-2026-03-1296-Q005", "sibling_text": "latest modification in df engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "2. ME-GI / ME-GA / ME-G and recent dual-fuel engine advancements", "cross_family": true } ] }, { "qid": "CHE-2025-12-0239-Q007", "text": "Function of Thermostatic valve(I said all the 3 points but he is expecting only one point that is to maintain the constant degree of superheat)", "family": "Refrigeration & AC", "subtopic": "Thermostatic Valve", "tid": "CHE-2025-12-0239", "tray": "review", "candidates": [ { "answer_id": "TEV-TXV-002", "score": 0.7155919671058655, "sibling_score": 0.7155919671058655, "answer_score": 0.5141516268253327, "sibling_qid": "MUM-2022-12-1037-Q007", "sibling_text": "explain thermostatic valve", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "TEV / TXV — purpose, construction, location and working", "cross_family": false }, { "answer_id": "REF-SCSH-002", "score": 0.6842324137687683, "sibling_score": 0.6842324137687683, "answer_score": null, "sibling_qid": "MUM-2026-06-3390-Q007", "sibling_text": "how to adjust degree of superheat in refer system", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Superheat in refrigeration — purpose, adjustment, importance and confirming suction superheat", "cross_family": false }, { "answer_id": "TEV-TXV-005", "score": 0.6765172481536865, "sibling_score": 0.6765172481536865, "answer_score": null, "sibling_qid": "CHE-2026-08-3894-Q005", "sibling_text": "how tev controls superheat", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Throttling process and superheat control across the TEV", "cross_family": false } ] }, { "qid": "CHE-2025-12-0239-Q008", "text": "Moisture in the reefer system and it's consequences. Ss moorthy Vels Mohan Avr Alternator components Avr Diode and transistor diff Transistor working Residual magnetism Safety 3 Oil tanker construction Safety valve boiler Easing gear Girder Breast hook Which part of ship is weak 31/12/2025 Extrnl. Shenoy Internal PO", "family": "Refrigeration & AC", "subtopic": "Refrigeration Faults / Checks", "tid": "CHE-2025-12-0239", "tray": "review", "candidates": [ { "answer_id": "REEF-COMP-001", "score": 0.6633264422416687, "sibling_score": 0.6633264422416687, "answer_score": null, "sibling_qid": "KOC-2024-07-0369-Q013", "sibling_text": "low pressure cut out in reefer system internal paul sir type of ship container", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Reefer/AC compressor safeties and cut-outs — safety valve, HP and LP cut-outs", "cross_family": false }, { "answer_id": "ENER-P03-002", "score": 0.6558900475502014, "sibling_score": 0.6558900475502014, "answer_score": null, "sibling_qid": "KOL-2016-07-2060-Q001", "sibling_text": "sarkar ak dass mect and sinha 4 july 2016 func 5 earth neutral how it s located on shiprectifier how its on ship wer all used lead acid battery if water reduces wat happen alarm and other emergency supply how it reaches to source motor starters", "sibling_family": "", "via": "sibling", "answer_title": "How the neutral / common point of an HV alternator is earthed", "cross_family": false }, { "answer_id": "REEF-COMP-006", "score": 0.6468202471733093, "sibling_score": 0.6468202471733093, "answer_score": null, "sibling_qid": "KOC-2025-10-1950-Q009", "sibling_text": "viscosity index definition purpose of maintaining boiler water chloride levels and effects of max and min alkalinity in boiler water ubaid reefer compressor oil seal leaking no spares onboard stand by compressor also opened up for overhauling what will u do for emergency repairs", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Compressor shaft seal (mechanical/rotary seal) — arrangement, lubrication, renewal, leak action", "cross_family": false } ] }, { "qid": "CHE-2025-12-0322-Q002", "text": "Overload working", "family": "Electrical - Motors & Starters", "subtopic": "Induction Motor (General / Working)", "tid": "CHE-2025-12-0322", "tray": "new", "candidates": [ { "answer_id": "OCR-185-001", "score": 0.6068673133850098, "sibling_score": 0.6068673133850098, "answer_score": null, "sibling_qid": "MUM-2025-08-1578-Q018", "sibling_text": "overload over current checks", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Testing an overcurrent relay / overcurrent trip onboard", "cross_family": true }, { "answer_id": "ODC-013", "score": 0.5453835725784302, "sibling_score": 0.5453835725784302, "answer_score": null, "sibling_qid": "KOC-2023-03-0165-Q008", "sibling_text": "odme working", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "ODMCS / ODME — purpose, components and working principle", "cross_family": true }, { "answer_id": "OC-UV-TRIP-003", "score": 0.5427185297012329, "sibling_score": 0.5427185297012329, "answer_score": null, "sibling_qid": "MUM-2022-07-1330-Q003", "sibling_text": "overload overload trip working", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Overload trip — activation, time delay and protection effect", "cross_family": true } ] }, { "qid": "CHE-2025-12-0322-Q008", "text": "Steering gear motor safety.", "family": "Electrical - Motors & Starters", "subtopic": "STEERING GEAR MOTOR-ELECTRICAL", "tid": "CHE-2025-12-0322", "tray": "review", "candidates": [ { "answer_id": "SGM-ELEC-001", "score": 0.8189981579780579, "sibling_score": 0.8189981579780579, "answer_score": 0.5607824712991715, "sibling_qid": "CHE-2026-02-0333-Q006", "sibling_text": "steering gear motor safeties", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What are the safeties, alarms and trips on the steering gear motor as per SOLAS — and how do you activate the safematic?", "cross_family": false }, { "answer_id": "SGM-ELEC-002", "score": 0.8188098073005676, "sibling_score": 0.8188098073005676, "answer_score": null, "sibling_qid": "MUM-2026-05-3190-Q008", "sibling_text": "steering gear motor safeties", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What type of motor is the steering gear motor, how does it differ from other engine-room motors, and how do you order one?", "cross_family": false }, { "answer_id": "ELEC-SAFE-006", "score": 0.6172185122966766, "sibling_score": null, "answer_score": 0.6172185122966766, "sibling_qid": "", "sibling_text": "steering gear electrical safety and motor insulation essential service duplicated supplies often one from the emergency switchboard motors have short circuit protection and an overload alarm no normal overload trip that would stop steering", "sibling_family": "", "via": "answer_title", "answer_title": "Steering gear electrical safety and motor insulation", "cross_family": false } ] }, { "qid": "CHE-2025-12-0324-Q004", "text": "draw and explain short circuit.", "family": "Electrical - Protection & Relays", "subtopic": "Protection / Relays", "tid": "CHE-2025-12-0324", "tray": "new", "candidates": [ { "answer_id": "OCR-185-006", "score": 0.5806264281272888, "sibling_score": 0.5806264281272888, "answer_score": 0.37234652936458584, "sibling_qid": "CHE-2026-02-0332-Q014S5", "sibling_text": "short circuit", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "If short-circuit protection fails to operate; how it is checked", "cross_family": false }, { "answer_id": "OC-UV-TRIP-007", "score": 0.5612159371376038, "sibling_score": 0.5612159371376038, "answer_score": null, "sibling_qid": "KOC-2026-03-1726-Q003", "sibling_text": "what arrrangement there for short circuit", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "General overcurrent / undervoltage trips — alarms, values and failure effects", "cross_family": false }, { "answer_id": "OC-UV-TRIP-001", "score": 0.5355576276779175, "sibling_score": 0.5355576276779175, "answer_score": null, "sibling_qid": "KOC-2024-11-1441-Q002", "sibling_text": "draw uv trip relay and explain", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Under-voltage trip / no-volt coil — purpose, working, onboard test and calibration", "cross_family": false } ] }, { "qid": "CHE-2025-12-0325-Q001", "text": "1 which type of ship you sailed, did you clear ur fn5 writtens, which attempt ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2025-12-0325", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.6668269634246826, "sibling_score": 0.6668269634246826, "answer_score": null, "sibling_qid": "MUM-2026-02-1280-Q001", "sibling_text": "type of ship done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.6565588116645813, "sibling_score": 0.6565588116645813, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.6563463807106018, "sibling_score": 0.6563463807106018, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false } ] }, { "qid": "CHE-2025-12-0325-Q003", "text": "Under voltage relay testing ?", "family": "Electrical - Generator & Alternator", "subtopic": "Voltage Dip / Droop", "tid": "CHE-2025-12-0325", "tray": "review", "candidates": [ { "answer_id": "OC-UV-TRIP-001", "score": 0.7481092810630798, "sibling_score": 0.7481092810630798, "answer_score": 0.5502197980880738, "sibling_qid": "KOC-2024-06-1364-Q014", "sibling_text": "demonstrate under voltage relay working", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Under-voltage trip / no-volt coil — purpose, working, onboard test and calibration", "cross_family": true }, { "answer_id": "VOLT-SYS-006", "score": 0.5276632964611053, "sibling_score": null, "answer_score": 0.5276632964611053, "sibling_qid": "", "sibling_text": "undervoltage and the undervoltage trip", "sibling_family": "", "via": "answer_title", "answer_title": "Undervoltage and the undervoltage trip", "cross_family": false }, { "answer_id": "OCR-185-001", "score": 0.5261446446180343, "sibling_score": null, "answer_score": 0.5261446446180343, "sibling_qid": "", "sibling_text": "testing an overcurrent relay overcurrent trip onboard two methods secondary injection relay element only and primary injection the whole chain end to end secondary inject at the relay terminals confirm pickup at the plug setting then time the operation at a set multiple against the idmt curve", "sibling_family": "", "via": "answer_title", "answer_title": "Testing an overcurrent relay / overcurrent trip onboard", "cross_family": false } ] }, { "qid": "CHE-2025-12-0325-Q004", "text": "4 what is the special about steering gear motor, some cross questions", "family": "Steering Gear & Hydraulics", "subtopic": "Steering Gear Motor", "tid": "CHE-2025-12-0325", "tray": "review", "candidates": [ { "answer_id": "SGM-ELEC-002", "score": 0.7236561179161072, "sibling_score": 0.7236561179161072, "answer_score": 0.5311739027500152, "sibling_qid": "MUM-2023-01-1376-Q004", "sibling_text": "steering gear motor is different from regular motors in what way", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What type of motor is the steering gear motor, how does it differ from other engine-room motors, and how do you order one?", "cross_family": true }, { "answer_id": "STEER-055-A-002", "score": 0.6959994435310364, "sibling_score": 0.6959994435310364, "answer_score": 0.5213808655738831, "sibling_qid": "MUM-2026-03-2058-Q008", "sibling_text": "type of steering gear motor", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Steering gear motor and power unit", "cross_family": false }, { "answer_id": "STEER-055-A-001", "score": 0.6910139322280884, "sibling_score": 0.6910139322280884, "answer_score": null, "sibling_qid": "KOL-2022-09-1710-Q004", "sibling_text": "what type of steering u had explain all electric steering gear and principle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Steering gear — construction, types and working", "cross_family": false } ] }, { "qid": "CHE-2025-12-0325-Q005", "text": "5 purpose of AUX. contact in a starter and some x uquestions", "family": "Electrical - Motors & Starters", "subtopic": "Starter Panel / Control Circuit", "tid": "CHE-2025-12-0325", "tray": "new", "candidates": [ { "answer_id": "CBR-ARC-G-002", "score": 0.5709270238876343, "sibling_score": 0.5709270238876343, "answer_score": null, "sibling_qid": "KOL-2023-10-3648-Q009", "sibling_text": "acb components and purpose of aux contact", "sibling_family": "", "via": "sibling", "answer_title": "ACB construction, contacts, arc chutes, auxiliaries and VCB parts", "cross_family": false }, { "answer_id": "STARTER-DEC-B-002", "score": 0.5428534150123596, "sibling_score": 0.5428534150123596, "answer_score": 0.3908621251583099, "sibling_qid": "CHE-2026-03-0125-Q003", "sibling_text": "what is the purpose of starter b why we are limiting the starting current c why starting current is more", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Why a starter is needed & reducing starting current", "cross_family": false }, { "answer_id": "STARTER-DEC-B-001", "score": 0.5093662142753601, "sibling_score": 0.5093662142753601, "answer_score": null, "sibling_qid": "KOL-2022-08-2588-Q008", "sibling_text": "which type of starter is used according to which motor so many hell lot of cross questions in both fnctions", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Selecting the right starter for a motor", "cross_family": false } ] }, { "qid": "CHE-2025-12-0326-Q001", "text": "1 which type of ship you sailed, did you clear ur fn5 writtens, which attempt", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2025-12-0326", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.6668269634246826, "sibling_score": 0.6668269634246826, "answer_score": null, "sibling_qid": "MUM-2026-02-1280-Q001", "sibling_text": "type of ship done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.6565588116645813, "sibling_score": 0.6565588116645813, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.6563463807106018, "sibling_score": 0.6563463807106018, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false } ] }, { "qid": "CHE-2025-12-0327-Q008", "text": "What is bow flare and purposes", "family": "", "subtopic": "Bulbous Bow", "tid": "CHE-2025-12-0327", "tray": "new", "candidates": [ { "answer_id": "PIPEFAB-012", "score": 0.47390902042388916, "sibling_score": 0.47390902042388916, "answer_score": 0.3560576647520065, "sibling_qid": "CHE-2026-05-0578-Q010", "sibling_text": "purpose of flaring tool", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "What is the purpose of a flaring tool?", "cross_family": false }, { "answer_id": "SHIPTYPE-BTC-002", "score": 0.43225419521331787, "sibling_score": 0.43225419521331787, "answer_score": 0.35269879698753354, "sibling_qid": "CHE-2026-04-0153-Q005", "sibling_text": "why bow flare in container vessel not in tankers", "sibling_family": "", "via": "sibling", "answer_title": "Why a container ship has more bow flare than a bulk carrier or tanker", "cross_family": false }, { "answer_id": "DRG-B-009", "score": 0.42088261246681213, "sibling_score": 0.42088261246681213, "answer_score": null, "sibling_qid": "KOL-2020-09-0422-Q008", "sibling_text": "bowsing tackle", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Bowsing tackle and tricing pendant", "cross_family": false } ] }, { "qid": "CHE-2025-12-0328-Q007", "text": "Pilot ladder integrity check?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Pilot Ladder / Transfer", "tid": "CHE-2025-12-0328", "tray": "new", "candidates": [ { "answer_id": "LBT-TEST-B-005", "score": 0.4929121136665344, "sibling_score": 0.4929121136665344, "answer_score": null, "sibling_qid": "KOC-2025-12-0740-Q005", "sibling_text": "checks on lifeboat davit after dynamic test is carried out", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Checks after the dynamic/overload load test", "cross_family": false }, { "answer_id": "PLE-468-001", "score": 0.48243024945259094, "sibling_score": 0.48243024945259094, "answer_score": null, "sibling_qid": "KOC-2025-10-1603-Q008", "sibling_text": "embarkation ladder light requirement", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "1. Lifeboat / rescue boat embarkation lighting — requirements and what makes it special (including the embarkation ladder light)", "cross_family": false }, { "answer_id": "DRG-B-011", "score": 0.4625905454158783, "sibling_score": 0.4625905454158783, "answer_score": 0.3882885485887527, "sibling_qid": "KOL-2026-01-1163-Q002", "sibling_text": "lifeboat launching arrangement is working satisfactory how to test", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lowering mechanism — inspection and checks as 2/E", "cross_family": false } ] }, { "qid": "CHE-2025-12-0328-Q009", "text": "oversize lifejacket regulations and how much required onboard? Internal po:", "family": "SOLAS - LSA & Lifeboats", "subtopic": "LSA Code", "tid": "CHE-2025-12-0328", "tray": "review", "candidates": [ { "answer_id": "LSA-LB-A-001", "score": 0.7083184123039246, "sibling_score": 0.7083184123039246, "answer_score": 0.41489284634590146, "sibling_qid": "CHE-2026-03-0130-Q001", "sibling_text": "solas regulation for oversize lifejacket how many are there in your ship", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "SOLAS requirements for lifeboats", "cross_family": false }, { "answer_id": "LRHR-A-001", "score": 0.5936421751976013, "sibling_score": 0.5936421751976013, "answer_score": 0.41672434806823727, "sibling_qid": "KOL-2025-07-1000-Q004", "sibling_text": "life raft regulation how much capacity", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "SOLAS requirement for liferafts on a cargo ship — number and total capacity", "cross_family": false }, { "answer_id": "LRHR-B-001", "score": 0.5720608830451965, "sibling_score": 0.5720608830451965, "answer_score": null, "sibling_qid": "CHE-2025-08-0039-Q013", "sibling_text": "life raft requirement as per solas", "sibling_family": "SOLAS - 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Components (Other)", "subtopic": "Piston Rings", "tid": "CHE-2025-12-0457", "tray": "review", "candidates": [ { "answer_id": "PRING-B-001", "score": 0.7051549553871155, "sibling_score": 0.7051549553871155, "answer_score": 0.5564072340726852, "sibling_qid": "KOL-2018-01-3112-Q005", "sibling_text": "when u decide to discard piston ring", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston-ring inspection & discard criteria", "cross_family": false }, { "answer_id": "CYL-LINER-P02-003", "score": 0.6952770948410034, "sibling_score": 0.6952770948410034, "answer_score": null, "sibling_qid": "KOL-2019-02-3210-Q002", "sibling_text": "how to check liner wear what will be piston ring if liner is chrome plated", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L3 · T044-PART_02-G003High", "cross_family": false }, { "answer_id": "PIST-CSI-C-001", "score": 0.6935687065124512, "sibling_score": 0.6935687065124512, "answer_score": null, "sibling_qid": "KOL-2019-06-3245-Q002", "sibling_text": "me piston pitting marks on piston crown your action", "sibling_family": "2-Stroke - 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Function and working?", "family": "Electrical - Protection & Relays", "subtopic": "", "tid": "CHE-2026-01-0330", "tray": "new", "candidates": [ { "answer_id": "PRL-594-002", "score": 0.6189715266227722, "sibling_score": 0.6189715266227722, "answer_score": 0.45352927446365354, "sibling_qid": "KOL-2017-05-2128-Q003", "sibling_text": "relay explain and purpose", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "What is a relay, what is it for, and what are its types?", "cross_family": false }, { "answer_id": "OCR-185-004", "score": 0.6002190709114075, "sibling_score": 0.6002190709114075, "answer_score": null, "sibling_qid": "MUM-2026-05-3171-Q007", "sibling_text": "idmt relay explain about function only", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "IDMT, dashpot and relay types", "cross_family": false }, { "answer_id": "PRL-594-001", "score": 0.5044721364974976, "sibling_score": 0.5044721364974976, "answer_score": 0.35253484845161437, "sibling_qid": "KOC-2022-09-1195-Q005", "sibling_text": "difference between relay and contractor", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "What is the difference between a relay and a contactor?", "cross_family": false } ] }, { "qid": "CHE-2026-02-0103-Q004", "text": "Water ingress alarm location, how many and how to test", "family": "Cargo Ops - Bulk Carriers", "subtopic": "Cargo Hold Level Detector", "tid": "CHE-2026-02-0103", "tray": "review", "candidates": [ { "answer_id": "CCE-322-006", "score": 0.6751857995986938, "sibling_score": 0.6751857995986938, "answer_score": 0.4396890491247177, "sibling_qid": "CHE-2026-02-0104-Q003", "sibling_text": "water ingress alarm how to test it", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Testing the OMD alarm; alarm and shutdown values", "cross_family": false }, { "answer_id": "SOLAS12-BC-E-001", "score": 0.5827955603599548, "sibling_score": 0.5827955603599548, "answer_score": null, "sibling_qid": "KOL-2026-05-0039-Q003", "sibling_text": "cargo hold water ingress alarm arrangement how to test decider", "sibling_family": "", "via": "sibling", "answer_title": "Water ingress detection & alarm system (WIDAS) — SOLAS XII/12", "cross_family": false }, { "answer_id": "WIDAS-SMK-002", "score": 0.5681319236755371, "sibling_score": 0.5681319236755371, "answer_score": null, "sibling_qid": "KOL-2017-03-0077-Q001", "sibling_text": "what are the different alarms fitted for water ingress in cargo hold cofferdam fore peak tank", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "WIDAS purpose and the three protected spaces", "cross_family": false } ] }, { "qid": "CHE-2026-02-0104-Q001", "text": "Type of ship sailed", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2026-02-0104", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8451389670372009, "sibling_score": 0.8451389670372009, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8441489338874817, "sibling_score": 0.8441489338874817, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7921213507652283, "sibling_score": 0.7921213507652283, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "CHE-2026-02-0105-Q002", "text": "type of vessel", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2026-02-0105", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.851435124874115, "sibling_score": 0.851435124874115, "answer_score": null, "sibling_qid": "MUM-2026-06-3384-Q001", "sibling_text": "type of vessel", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.7776622176170349, "sibling_score": 0.7776622176170349, "answer_score": null, "sibling_qid": "CHE-2026-02-0481-Q001", "sibling_text": "type of vessels sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7708626985549927, "sibling_score": 0.7708626985549927, "answer_score": 0.5235632658004761, "sibling_qid": "CHE-2026-02-0109-Q001", "sibling_text": "type of ship explain what type is your vessel explain their type and difference", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "CHE-2026-02-0105-Q004", "text": "Type of rudder onboard? 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Stern tube seals, integrity test, sleeve wasting and afloat repair", "cross_family": true } ] }, { "qid": "CHE-2026-02-0106-Q004", "text": "Scope of 2E in MLC", "family": "MLC", "subtopic": "MLC / DMLC / Work-Rest", "tid": "CHE-2026-02-0106", "tray": "new", "candidates": [ { "answer_id": "ISM-2E-A-001", "score": 0.4901570677757263, "sibling_score": 0.4901570677757263, "answer_score": null, "sibling_qid": "CHE-2026-04-0163-Q018", "sibling_text": "role of 2e in mlc and ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Roles, duties and responsibilities of a Second Engineer under ISM/SMS", "cross_family": true }, { "answer_id": "ISM-SMC-B-004", "score": 0.39738568663597107, "sibling_score": 0.39738568663597107, "answer_score": null, "sibling_qid": "CHE-2026-02-0106-Q003", "sibling_text": "role of 2e in preparation of smc survey", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Preparing for the SMC audit — the 2/E role", "cross_family": true }, { "answer_id": "LLC-SURV-P01-001", "score": 0.3941182494163513, "sibling_score": 0.3941182494163513, "answer_score": null, "sibling_qid": "MUM-2025-08-0385-Q001", "sibling_text": "load line as 2e", "sibling_family": "", "via": "sibling", "answer_title": "Load line survey preparation as Second Engineer: engine-room scope, machinery openings, tanks/vents, valves and overboard checks", "cross_family": false } ] }, { "qid": "CHE-2026-02-0108-Q002", "text": "Type of ship sailed", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2026-02-0108", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8451389670372009, "sibling_score": 0.8451389670372009, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8441489338874817, "sibling_score": 0.8441489338874817, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7921213507652283, "sibling_score": 0.7921213507652283, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "CHE-2026-02-0108-Q003", "text": "writtens result", "family": "Status & Introduction", "subtopic": "WRITTEN STATUS", "tid": "CHE-2026-02-0108", "tray": "new", "candidates": [ { "answer_id": "EPC-P03-003", "score": 0.4015136659145355, "sibling_score": 0.4015136659145355, "answer_score": null, "sibling_qid": "KOL-2023-12-4030-Q004", "sibling_text": "part of plc reult fail", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "PLC maintenance — what is a hardware test? If a PLC is defective, what are your actions, and how do you identify the faulty component — say on the manoeuvring system?", "cross_family": true }, { "answer_id": "LLC-SUR-POA-3-FINAL-001", "score": 0.39875656366348267, "sibling_score": 0.39875656366348267, "answer_score": null, "sibling_qid": "KOL-2025-11-1119-Q005", "sibling_text": "condition of assignment wait for result", "sibling_family": "", "via": "sibling", "answer_title": "Conditions of assignment of freeboard", "cross_family": false }, { "answer_id": "SG-055-B-001", "score": 0.3952377438545227, "sibling_score": 0.3952377438545227, "answer_score": null, "sibling_qid": "KOL-2026-01-1156-Q006", "sibling_text": "deadman handle results passed fn3", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Emergency steering operation and the deadman handle", "cross_family": true } ] }, { "qid": "CHE-2026-02-0108-Q009", "text": "Type of ship sailed", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2026-02-0108", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8451389670372009, "sibling_score": 0.8451389670372009, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8441489338874817, "sibling_score": 0.8441489338874817, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7921213507652283, "sibling_score": 0.7921213507652283, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "CHE-2026-02-0110-Q007", "text": "Purpose of easing gear? At what extreme case u operate easing gear at both safety valve is working condition?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "CHE-2026-02-0110", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.6526889204978943, "sibling_score": 0.6526889204978943, "answer_score": null, "sibling_qid": "MUM-2026-05-3267-Q005", "sibling_text": "boiler safety valve why you required easing gear", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.5854636430740356, "sibling_score": 0.5854636430740356, "answer_score": null, "sibling_qid": "CHE-2025-11-0452-Q004", "sibling_text": "what is the purpose of easing gear and what is accumulation pressure test po deciding which engine you have sailed i said me engine why me engine is intelligent by seeing performance po decides either pass or fail to everyone", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.5515787601470947, "sibling_score": 0.5515787601470947, "answer_score": null, "sibling_qid": "MUM-2026-02-1255-Q006", "sibling_text": "setting of safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false } ] }, { "qid": "CHE-2026-02-0111-Q001S3", "text": "MARPOL Annex 1 discharge criteria for ER and cargo ? Annex 1 reg. 29 and 31 ?", "family": "MARPOL - Annex I (Oil)", "subtopic": "15 PPM / OWS", "tid": "CHE-2026-02-0111", "tray": "new", "candidates": [ { "answer_id": "ODC-001", "score": 0.6087426543235779, "sibling_score": 0.6087426543235779, "answer_score": 0.4688656061887741, "sibling_qid": "KOL-2021-07-0513-Q003", "sibling_text": "marpol annex 1 discharge criteria", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "MARPOL Annex I oil discharge criteria — the overall framework", "cross_family": false }, { "answer_id": "ODC-003", "score": 0.6059615015983582, "sibling_score": 0.6059615015983582, "answer_score": null, "sibling_qid": "KOL-2023-12-0790-Q004", "sibling_text": "discharge criteria in special and outside special area according to marpol annex 1", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Machinery-space bilge discharge inside a special area — and the difference from outside", "cross_family": false }, { "answer_id": "OILRES-DISCH-TOPIC467-FINAL-004", "score": 0.5854997038841248, "sibling_score": 0.5854997038841248, "answer_score": null, "sibling_qid": "CHE-2025-11-0084-Q005", "sibling_text": "cargo oil residues discharge criteria", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Cargo oil residues and the slop tank — purpose, capacity, handling, discharge criteria and reception facilities", "cross_family": false } ] }, { "qid": "CHE-2026-02-0111-Q002", "text": "Type of ship and type of engine", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "CHE-2026-02-0111", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8337827324867249, "sibling_score": 0.8337827324867249, "answer_score": null, "sibling_qid": "MUM-2025-08-2357-Q001", "sibling_text": "type of ship type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.8211314082145691, "sibling_score": 0.8211314082145691, "answer_score": null, "sibling_qid": "MUM-2026-07-3668-Q004", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7601864337921143, "sibling_score": 0.7601864337921143, "answer_score": null, "sibling_qid": "KOL-2025-12-2031-Q002", "sibling_text": "type of ship and engine sailed engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "CHE-2026-02-0113-Q002", "text": "Type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2026-02-0113", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8367276191711426, "sibling_score": 0.8367276191711426, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8018048405647278, "sibling_score": 0.8018048405647278, "answer_score": 0.5473710656166076, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8003591299057007, "sibling_score": 0.8003591299057007, "answer_score": 0.5217903822660446, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "CHE-2026-02-0115-Q002S2", "text": "what type of gas carrier? what’s your type explain ? what 2G is. Tell other types and explain?", "family": "Cargo Ops - Gas Carriers", "subtopic": "MARVS / Tank Type 1G/2G/3G", "tid": "CHE-2026-02-0115", "tray": "new", "candidates": [ { "answer_id": "IGC-GAS-004", "score": 0.5846391916275024, "sibling_score": 0.5846391916275024, "answer_score": null, "sibling_qid": "KOL-2025-08-1014-Q002", "sibling_text": "type of ship sailed lpg classification of gas carriers of as per igc code", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Ship-type classification under the IGC Code — 1G / 2G / 2PG / 3G", "cross_family": false }, { "answer_id": "GC-TANK-001", "score": 0.5776398777961731, "sibling_score": 0.5776398777961731, "answer_score": 0.462323522567749, "sibling_qid": "CHE-2026-02-0115-Q003S2", "sibling_text": "types of tanks in gas carriers", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Main cargo containment and independent tank types on LPG and LNG carriers", "cross_family": false }, { "answer_id": "LPG-LNG-009", "score": 0.5728927254676819, "sibling_score": 0.5728927254676819, "answer_score": 0.4488095223903656, "sibling_qid": "MUM-2026-03-0858-Q001", "sibling_text": "lpg and lng", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Gas-carrier fundamentals and ship-specific traps", "cross_family": false } ] }, { "qid": "CHE-2026-02-0115-Q005S2", "text": "How do you calculate DCP and N2 ?", "family": "SOLAS - Fire Safety", "subtopic": "DCP / Dry Powder", "tid": "CHE-2026-02-0115", "tray": "new", "candidates": [ { "answer_id": "DCP-FIXED-A-003", "score": 0.6032611727714539, "sibling_score": 0.6032611727714539, "answer_score": null, "sibling_qid": "CHE-2026-04-0164-Q004", "sibling_text": "dcp calculation", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Capacities, pressures, relief settings, regulations and calculation", "cross_family": false }, { "answer_id": "DCP-PPC-003", "score": 0.47850501537323, "sibling_score": 0.47850501537323, "answer_score": null, "sibling_qid": "KOC-2025-03-0562-Q003", "sibling_text": "checks on dcp", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "C3 — DCP — General Working, Advantages, Disadvantages & Common Issues", "cross_family": false }, { "answer_id": "DCP-PPC-001", "score": 0.4582436680793762, "sibling_score": 0.4582436680793762, "answer_score": null, "sibling_qid": "KOC-2025-01-0511-Q002", "sibling_text": "dcp composition", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "C1 — Composition, Chemical Names & Anti-caking Agents", "cross_family": false } ] }, { "qid": "CHE-2026-02-0116-Q003", "text": "Type of ship sailed", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2026-02-0116", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8451389670372009, "sibling_score": 0.8451389670372009, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8441489338874817, "sibling_score": 0.8441489338874817, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7921213507652283, "sibling_score": 0.7921213507652283, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "CHE-2026-02-0117-Q007", "text": "Loadicator data, and what all we can find from the loadicator", "family": "Stability & Loadicator", "subtopic": "Loadicator", "tid": "CHE-2026-02-0117", "tray": "new", "candidates": [ { "answer_id": "SOLAS12-BC-D-001", "score": 0.5789799690246582, "sibling_score": 0.5789799690246582, "answer_score": 0.3273928135633469, "sibling_qid": "MUM-2026-06-3412-Q002", "sibling_text": "why load indicator is approved type what are the things you can monitor in load indicator", "sibling_family": "Stability & Loadicator", "via": "sibling", "answer_title": "Loadicator — why a loading instrument is required, and the loading-restriction concern", "cross_family": false }, { "answer_id": "LS-IMB-A-001", "score": 0.5020207762718201, "sibling_score": 0.5020207762718201, "answer_score": null, "sibling_qid": "KOC-2024-11-1434-Q006", "sibling_text": "kw loading detail explanation", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Two paralleled generators sharing unequal load — cause and correction", "cross_family": true }, { "answer_id": "LL-CONV-P06-004", "score": 0.495584636926651, "sibling_score": 0.495584636926651, "answer_score": 0.30982686281204225, "sibling_qid": "KOC-2022-11-0108-Q001", "sibling_text": "explain load line", "sibling_family": "", "via": "sibling", "answer_title": "LLC-P06-04 - General load-line requirement, marks, stability link and overloading consequences", "cross_family": false } ] }, { "qid": "CHE-2026-02-0118-Q002", "text": "Written cleared", "family": "Status & Introduction", "subtopic": "WRITTEN STATUS", "tid": "CHE-2026-02-0118", "tray": "new", "candidates": [ { "answer_id": "DDHSC-002", "score": 0.5200910568237305, "sibling_score": 0.5200910568237305, "answer_score": null, "sibling_qid": "MUM-2026-10-4001-Q007", "sibling_text": "clearances", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Explain the underwater hull inspection and checks carried out as Second Engineer during drydock.", "cross_family": true }, { "answer_id": "BRG-NOM-004", "score": 0.4863131642341614, "sibling_score": 0.4863131642341614, "answer_score": null, "sibling_qid": "KOC-2025-10-1948-Q011", "sibling_text": "what happens if clearance increases", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bearing Nip/Crush, Clearance, and How the Shell is Held", "cross_family": true }, { "answer_id": "BCL-592-003", "score": 0.48120445013046265, "sibling_score": 0.48120445013046265, "answer_score": null, "sibling_qid": "KOC-2022-07-0966-Q016", "sibling_text": "what happens if more less clearances", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What are the effects of bearing clearance being too high or too low?", "cross_family": true } ] }, { "qid": "CHE-2026-02-0118-Q017", "text": "Why concentric springs in AE valve?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE Concentric Spring", "tid": "CHE-2026-02-0118", "tray": "new", "candidates": [ { "answer_id": "EXHV-297-008", "score": 0.6393746137619019, "sibling_score": 0.6393746137619019, "answer_score": null, "sibling_qid": "MUM-2026-05-3155-Q009", "sibling_text": "ae exhaust valves have concentric springs what is the purpose of it", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "2-stroke vs 4-stroke exhaust valve operation; the AE conical spring", "cross_family": false }, { "answer_id": "EXHV-P01-002", "score": 0.4167613387107849, "sibling_score": 0.4167613387107849, "answer_score": null, "sibling_qid": "CHE-2021-07-0183-Q006", "sibling_text": "spring air pressure hw much what happens with air when oil pressure is applied to open exhaust valve it should restrict it s opening hw it s prevented asked by internal", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Air spring and soft closing", "cross_family": true }, { "answer_id": "AEGOV-002", "score": 0.4167313575744629, "sibling_score": 0.4167313575744629, "answer_score": null, "sibling_qid": "KOL-2016-08-1231-Q002", "sibling_text": "woodward governor buffer spring needle valve", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Woodward / UG-8 Governor — Knobs and Adjustments", "cross_family": false } ] }, { "qid": "CHE-2026-02-0242-Q001", "text": "type of ship and type of main engine you worked", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "CHE-2026-02-0242", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P01-001", "score": 0.79403156042099, "sibling_score": 0.79403156042099, "answer_score": null, "sibling_qid": "CHE-2026-02-0243-Q001", "sibling_text": "type of ship and type of main engine you worked", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7472746968269348, "sibling_score": 0.7472746968269348, "answer_score": null, "sibling_qid": "MUM-2026-09-3882-Q001", "sibling_text": "introduction types of ship main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "AC-VE-001", "score": 0.6977016925811768, "sibling_score": 0.6977016925811768, "answer_score": null, "sibling_qid": "MUM-2026-01-2904-Q001", "sibling_text": "what type of ship engine power and nomenclature", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Volumetric efficiency: define it, and if it drops how do you improve it (with bumping clearance)?", "cross_family": false } ] }, { "qid": "CHE-2026-02-0245-Q001", "text": "Which type of vessel.", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2026-02-0245", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8345325589179993, "sibling_score": 0.8345325589179993, "answer_score": null, "sibling_qid": "CHE-2026-02-0249-Q001", "sibling_text": "which type of vessel", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "CHEM-PA-011", "score": 0.7681447863578796, "sibling_score": 0.7681447863578796, "answer_score": null, "sibling_qid": "MUM-2026-03-2938-Q002", "sibling_text": "which vessel", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "What ‘en route’ means for Annex II discharge", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7671379446983337, "sibling_score": 0.7671379446983337, "answer_score": null, "sibling_qid": "CHE-2026-02-0247-Q001", "sibling_text": "what type of engine vessel", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "CHE-2026-02-0245-Q002", "text": "Written exam results.", "family": "__META__ (non-exam)", "subtopic": "", "tid": "CHE-2026-02-0245", "tray": "review", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.7482184171676636, "sibling_score": 0.7482184171676636, "answer_score": null, "sibling_qid": "MUM-2026-01-1252-Q001", "sibling_text": "status of results oral written exam", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": false }, { "answer_id": "DUS-P1-02", "score": 0.5522217750549316, "sibling_score": 0.5522217750549316, "answer_score": null, "sibling_qid": "KOL-2025-08-3851-Q006", "sibling_text": "drydock plans rudder checks cross questions what about other written oral exams status told waiting for naval written result to come all other paper cleared", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Plans, drawings and special tools kept ready for drydock — engine-department view", "cross_family": true }, { "answer_id": "SOPEP-003", "score": 0.5127836465835571, "sibling_score": 0.5127836465835571, "answer_score": null, "sibling_qid": "KOL-2022-11-0700-Q005", "sibling_text": "plan of action after oil spill as 2 e finally checked my written results and said you have to study more for 2 e", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Oil Spill and Bunkering-Spill Response under the SOPEP", "cross_family": true } ] }, { "qid": "CHE-2026-02-0245-Q006", "text": "Why does the cascade tank have a filter ?", "family": "Boilers - Feed Water & Water Treatment", "subtopic": "Feed Water / Low Water Level", "tid": "CHE-2026-02-0245", "tray": "new", "candidates": [ { "answer_id": "CASC-COND-005", "score": 0.5048841238021851, "sibling_score": 0.5048841238021851, "answer_score": 0.4154551401734352, "sibling_qid": "KOL-2023-08-3632-Q003", "sibling_text": "cascade tank", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Why there is an observation tank and where it is, and the cascade tank and cascade system explained", "cross_family": true }, { "answer_id": "CPFE-583-002", "score": 0.49521180987358093, "sibling_score": 0.49521180987358093, "answer_score": null, "sibling_qid": "CHE-2026-03-0492-Q007", "sibling_text": "why framo system provided in product tankers 2 framo system return line filter purpose", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Why a submerged hydraulic pump on a product or chemical tanker — and what makes a cargo pump different", "cross_family": true }, { "answer_id": "RAC-MAT-320-004", "score": 0.4799599349498749, "sibling_score": 0.4799599349498749, "answer_score": null, "sibling_qid": "KOL-2018-08-1403-Q007", "sibling_text": "filter in a c system", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "4. AHU maintenance, filters and pre-climate-change checks", "cross_family": true } ] }, { "qid": "CHE-2026-02-0249-Q002", "text": "Written exam results.", "family": "__META__ (non-exam)", "subtopic": "", "tid": "CHE-2026-02-0249", "tray": "review", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.7482184171676636, "sibling_score": 0.7482184171676636, "answer_score": null, "sibling_qid": "MUM-2026-01-1252-Q001", "sibling_text": "status of results oral written exam", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": false }, { "answer_id": "DUS-P1-02", "score": 0.5522217750549316, "sibling_score": 0.5522217750549316, "answer_score": null, "sibling_qid": "KOL-2025-08-3851-Q006", "sibling_text": "drydock plans rudder checks cross questions what about other written oral exams status told waiting for naval written result to come all other paper cleared", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Plans, drawings and special tools kept ready for drydock — engine-department view", "cross_family": true }, { "answer_id": "SOPEP-003", "score": 0.5127836465835571, "sibling_score": 0.5127836465835571, "answer_score": null, "sibling_qid": "KOL-2022-11-0700-Q005", "sibling_text": "plan of action after oil spill as 2 e finally checked my written results and said you have to study more for 2 e", "sibling_family": "MARPOL - 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Motors & Starters", "subtopic": "STEERING GEAR MOTOR-ELECTRICAL", "tid": "CHE-2026-02-0333", "tray": "new", "candidates": [ { "answer_id": "CABLE-INS-E-005", "score": 0.6451159119606018, "sibling_score": 0.6451159119606018, "answer_score": 0.4853491723537445, "sibling_qid": "KOC-2025-10-1582-Q004", "sibling_text": "ship cable safties", "sibling_family": "", "via": "sibling", "answer_title": "Cable properties, safety, standards and condition", "cross_family": false }, { "answer_id": "CABLE-INS-E-002", "score": 0.6250985860824585, "sibling_score": 0.6250985860824585, "answer_score": 0.5001534312963486, "sibling_qid": "KOL-2022-08-2591-Q001", "sibling_text": "cable in hazardous area", "sibling_family": "", "via": "sibling", "answer_title": "Cable for hazardous areas, tanker pump rooms and deck", "cross_family": false }, { "answer_id": "CABLE-INSUL-D-002", "score": 0.5956286787986755, "sibling_score": 0.5956286787986755, "answer_score": null, "sibling_qid": "MUM-2026-09-3894-Q005", "sibling_text": "flame retardant cable its insulation how it works", "sibling_family": "Electrical - 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Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "CHE-2026-02-0333-Q015", "text": "What is swell and shrinkage?", "family": "Boilers - Safety & Survey", "subtopic": "D/12 D/4 Settings", "tid": "CHE-2026-02-0333", "tray": "new", "candidates": [ { "answer_id": "DP-TX-006", "score": 0.48313039541244507, "sibling_score": 0.48313039541244507, "answer_score": 0.36705265343189236, "sibling_qid": "KOL-2025-08-2012-Q004", "sibling_text": "swell and shrink in boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler swell and shrink in relation to DP level measurement and control", "cross_family": true }, { "answer_id": "LWL-004", "score": 0.47535210847854614, "sibling_score": 0.47535210847854614, "answer_score": 0.4012204200029373, "sibling_qid": "KOL-2021-08-3446-Q003", "sibling_text": "what is swell and shrinkage how swell and shrinkage is nullified in boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "What are swell and shrinkage, and how are they nullified in the boiler?", "cross_family": true }, { "answer_id": "LWL-001", "score": 0.4236373007297516, "sibling_score": 0.4236373007297516, "answer_score": null, "sibling_qid": "KOL-2021-12-3498-Q002", "sibling_text": "shrinkage and swelling how to control what are 3 elements in the 3 elements 2 control system feed flow transmitter working", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Explain three-element boiler water level control — the three elements, how it removes swell and shrinkage, and how the PID works", "cross_family": true } ] }, { "qid": "CHE-2026-02-0333-Q021", "text": "ME specification Explain ?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Engine Nomenclature", "tid": "CHE-2026-02-0333", "tray": "new", "candidates": [ { "answer_id": "ENG-NOM-005", "score": 0.5971279144287109, "sibling_score": 0.5971279144287109, "answer_score": null, "sibling_qid": "MUM-2026-05-3248-Q002", "sibling_text": "me nomenclature explain", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false }, { "answer_id": "MCC-MEB-P02-003", "score": 0.5602611899375916, "sibling_score": 0.5602611899375916, "answer_score": null, "sibling_qid": "KOL-2026-05-4192-Q006", "sibling_text": "me engine describe", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Conventional MC / MC-C versus electronic ME — the practical operating differences", "cross_family": false }, { "answer_id": "ENG-NOM-001", "score": 0.5456838011741638, "sibling_score": 0.5456838011741638, "answer_score": 0.3390237867832184, "sibling_qid": "MUM-2026-06-3420-Q002", "sibling_text": "nomenclature of me ae explain full", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Nomenclature of ME and AE (asked together)", "cross_family": true } ] }, { "qid": "CHE-2026-02-0334-Q005S2", "text": "Isothermal and adiabatic?", "family": "Air Compressor", "subtopic": "Inter-cooler / After-cooler", "tid": "CHE-2026-02-0334", "tray": "new", "candidates": [ { "answer_id": "MAC-353-002", "score": 0.5233100652694702, "sibling_score": 0.5233100652694702, "answer_score": null, "sibling_qid": "MUM-2022-07-0939-Q006", "sibling_text": "why intercooler in air compressors wanted to hear work reduction as isothermal compression achieved", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Purpose of the intercooler and aftercooler", "cross_family": false }, { "answer_id": "AC-STAGE-004", "score": 0.46002084016799927, "sibling_score": 0.46002084016799927, "answer_score": null, "sibling_qid": "KOC-2024-02-0989-Q005", "sibling_text": "pv diagram of two stage compressor", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "P-V diagram of a two-stage air compressor", "cross_family": false }, { "answer_id": "HUM-334-004", "score": 0.4524567723274231, "sibling_score": 0.4524567723274231, "answer_score": 0.34308196902275084, "sibling_qid": "KOL-2018-12-1866-Q004", "sibling_text": "wet bulb temperature and dry bulb temperature in refrigeration y 2 temps", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "What are dry-bulb and wet-bulb temperatures, and why are they significant?", "cross_family": true } ] }, { "qid": "CHE-2026-02-0334-Q005S5", "text": "What will happen to how con rod bearing clearance affects bumping clearance?", "family": "Air Compressor", "subtopic": "Inter-cooler / After-cooler", "tid": "CHE-2026-02-0334", "tray": "new", "candidates": [ { "answer_id": "BCL-592-003", "score": 0.5899994373321533, "sibling_score": 0.5899994373321533, "answer_score": 0.42406773269176484, "sibling_qid": "KOC-2022-07-2031-Q009", "sibling_text": "bearing effects means less clearance more clearance ans pump pressure drops if more clearance", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What are the effects of bearing clearance being too high or too low?", "cross_family": true }, { "answer_id": "AC-VE-005", "score": 0.581475019454956, "sibling_score": 0.581475019454956, "answer_score": 0.4563077360391617, "sibling_qid": "CHE-2026-02-0334-Q005S4", "sibling_text": "bumping clearance importance", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "If bumping clearance is more or less, what happens, and how do you reduce or adjust it?", "cross_family": false }, { "answer_id": "RUN-CLR-002", "score": 0.5766854882240295, "sibling_score": 0.5766854882240295, "answer_score": 0.42905179858207704, "sibling_qid": "MUM-2026-06-3501-Q002", "sibling_text": "bumping clearance how to adjust", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Bumping clearance — what it is, why it matters, effects, and how it is adjusted", "cross_family": false } ] }, { "qid": "CHE-2026-02-0334-Q007", "text": "Type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2026-02-0334", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8367276191711426, "sibling_score": 0.8367276191711426, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8018048405647278, "sibling_score": 0.8018048405647278, "answer_score": 0.5473710656166076, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8003591299057007, "sibling_score": 0.8003591299057007, "answer_score": 0.5217903822660446, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "CHE-2026-02-0336-Q002", "text": "written status", "family": "Status & Introduction", "subtopic": "WRITTEN STATUS", "tid": "CHE-2026-02-0336", "tray": "new", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.605867862701416, "sibling_score": 0.605867862701416, "answer_score": null, "sibling_qid": "MUM-2026-03-1294-Q001", "sibling_text": "status of writtens and orals", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": true }, { "answer_id": "EXHV-P01-001", "score": 0.5800651907920837, "sibling_score": 0.5800651907920837, "answer_score": null, "sibling_qid": "KOC-2026-08-2106-Q001", "sibling_text": "status of written oral company type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "FLAG-ST-001", "score": 0.5045994520187378, "sibling_score": 0.5045994520187378, "answer_score": null, "sibling_qid": "KOL-2025-08-1003-Q005", "sibling_text": "flag state", "sibling_family": "Surveys - 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Statutory", "via": "sibling", "answer_title": "Flag State — authority, role, duties and requirements", "cross_family": true } ] }, { "qid": "CHE-2026-02-0337-Q003", "text": "type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2026-02-0337", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8367276191711426, "sibling_score": 0.8367276191711426, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8018048405647278, "sibling_score": 0.8018048405647278, "answer_score": 0.5473710656166076, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8003591299057007, "sibling_score": 0.8003591299057007, "answer_score": 0.5217903822660446, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "CHE-2026-02-0338-Q004", "text": "How hazardous and non hazardous area categories and what arrangements is given electrical safety( zener barrier explain)", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Zener / Diode / Rectifier", "tid": "CHE-2026-02-0338", "tray": "new", "candidates": [ { "answer_id": "HAZ-EX-B-001", "score": 0.603620171546936, "sibling_score": 0.603620171546936, "answer_score": null, "sibling_qid": "CHE-2026-03-0358-Q005", "sibling_text": "zener barrier working in intrinsically safe", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Intrinsically safe (Ex i) equipment — what it is, how it works, where it is used, how you identify it", "cross_family": false }, { "answer_id": "FSF-BF073-004", "score": 0.5724048018455505, "sibling_score": 0.5724048018455505, "answer_score": null, "sibling_qid": "CHE-2026-03-0359-Q001", "sibling_text": "zener diode zener barrier working in intrinsically safe", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a magnetic fail safe?", "cross_family": false }, { "answer_id": "PR-SAFE-A-004", "score": 0.542377769947052, "sibling_score": 0.542377769947052, "answer_score": 0.47991992235183717, "sibling_qid": "KOL-2016-12-0035-Q004", "sibling_text": "pump room safety intrinsically safe means what i said about zener barrier basically explained regarding the pp room circuit with low volt and curret", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Pump-room electrical safety, lighting and portable equipment", "cross_family": true } ] }, { "qid": "CHE-2026-02-0340-Q001", "text": "What type of vessel sailed? What about electrical writing? Have you sailed on tankers before ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2026-02-0340", "tray": "review", "candidates": [ { "answer_id": "TNK-SAFE-BF26-003", "score": 0.8418473601341248, "sibling_score": 0.8418473601341248, "answer_score": null, "sibling_qid": "CHE-2026-02-0340-Q001", "sibling_text": "what type of vessel sailed what about electrical writing have you sailed on tankers before", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "What safeties, including electrical safeties and Ex ratings, are provided on the deck of a tanker?", "cross_family": false }, { "answer_id": "COT-01", "score": 0.6762937307357788, "sibling_score": 0.6762937307357788, "answer_score": null, "sibling_qid": "KOC-2026-04-0892-Q003", "sibling_text": "type of ship sailed tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Oil-tanker types, definitions and cargo capability", "cross_family": false }, { "answer_id": "IBC-BCH-B-004", "score": 0.6601144075393677, "sibling_score": 0.6601144075393677, "answer_score": null, "sibling_qid": "MUM-2026-03-0859-Q001", "sibling_text": "pre sea and vessel type chemical tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Certificate of Fitness and MARPOL Annex II in practice", "cross_family": false } ] }, { "qid": "CHE-2026-02-0340-Q004", "text": "Zener barrier and cross questions?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Zener / Diode / Rectifier", "tid": "CHE-2026-02-0340", "tray": "new", "candidates": [ { "answer_id": "EPC-P02-01", "score": 0.63987797498703, "sibling_score": 0.63987797498703, "answer_score": 0.40328310132026673, "sibling_qid": "MUM-2026-02-1969-Q015", "sibling_text": "what is zener diode then cross questions", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a zener diode? 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Two paralleled generators sharing unequal load — cause and correction", "cross_family": false }, { "answer_id": "DIODESO-001", "score": 0.6061981320381165, "sibling_score": 0.6061981320381165, "answer_score": null, "sibling_qid": "MUM-2025-09-1640-Q001", "sibling_text": "two gen running and suddenly one diode open ckt short ckt", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Two alternators in parallel — one rotating rectifier diode goes short circuit. 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false } ] }, { "qid": "CHE-2026-02-0481-Q010", "text": "Type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2026-02-0481", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8367276191711426, "sibling_score": 0.8367276191711426, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8018048405647278, "sibling_score": 0.8018048405647278, "answer_score": 0.5473710656166076, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8003591895103455, 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in tankers?", "family": "Auxiliary Equipment", "subtopic": "Quick Closing Valve", "tid": "CHE-2026-03-0121", "tray": "new", "candidates": [ { "answer_id": "FFF-A-003", "score": 0.615409791469574, "sibling_score": 0.615409791469574, "answer_score": null, "sibling_qid": "CHE-2026-05-0535-Q004", "sibling_text": "fittings in the fire main line how many isolation valves are there", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fire main, hydrants, isolating and deck valves, and fire-line fittings", "cross_family": true }, { "answer_id": "PCD-P04-01", "score": 0.5563281774520874, "sibling_score": 0.5563281774520874, "answer_score": null, "sibling_qid": "MUM-2025-11-2871-Q006", "sibling_text": "5 valves on bilge pump", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "01. Bilge pump — type, why not centrifugal, and the suction valve chest", "cross_family": true }, { "answer_id": "MR-DS-PV-B-006", "score": 0.5313117504119873, "sibling_score": 0.5313117504119873, "answer_score": 0.5261063426733017, "sibling_qid": "CHE-2026-05-0544-Q008", "sibling_text": "what s use of isolation valve", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "6. Deck isolating valve, deck relief/safety devices, and cargo-tank pressure", "cross_family": true } ] }, { "qid": "CHE-2026-03-0121-Q008", "text": "mlc elements", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "CHE-2026-03-0121", "tray": "new", "candidates": [ { "answer_id": "ISMNC-002", "score": 0.5052398443222046, "sibling_score": 0.5052398443222046, "answer_score": null, "sibling_qid": "MUM-2026-01-0685-Q005", "sibling_text": "mlc mnc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a major non-conformity under the ISM Code? Give the definition and name some.", "cross_family": true }, { "answer_id": "MLC-WRH-B-006", "score": 0.48400622606277466, "sibling_score": 0.48400622606277466, "answer_score": null, "sibling_qid": "MUM-2026-06-3656-Q002", "sibling_text": "certificates under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false }, { "answer_id": "MLC-WRH-B-007", "score": 0.48159632086753845, "sibling_score": 0.48159632086753845, "answer_score": null, "sibling_qid": "MUM-2026-06-3511-Q003", "sibling_text": "deficiency in mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false } ] }, { "qid": "CHE-2026-03-0122-Q005", "text": "Solas training manual contents Have u ever read", "family": "SOLAS - LSA & Lifeboats", "subtopic": "LSA Code", "tid": "CHE-2026-03-0122", "tray": "review", "candidates": [ { "answer_id": "FIRE-P05-01", "score": 0.7552744150161743, "sibling_score": 0.7552744150161743, "answer_score": 0.46021291315555574, "sibling_qid": "MUM-2026-09-3971-Q008", "sibling_text": "solas training manual contents", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Fire-safety training manual — SOLAS II-2 Reg 15 contents and location", "cross_family": true }, { "answer_id": "LSA-CODE-003", "score": 0.6083017587661743, "sibling_score": 0.6083017587661743, "answer_score": 0.42912667989730835, "sibling_qid": "MUM-2023-03-0096-Q007", "sibling_text": "what s the difference between the instructions in lsa and training manual main difference as per solas", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "LSA Code instructions versus the ship’s training manual — the SOLAS distinction", "cross_family": false }, { "answer_id": "FSS-CODE-004", "score": 0.4024468928575516, "sibling_score": null, "answer_score": 0.4024468928575516, "sibling_qid": "", "sibling_text": "where do you find fire fighting requirements and equipment maintenance procedures and how would you learn the fss code has changed requirements and system specs fss code systems solas ii 2 requirements the statutory source on board maker s manuals fire safety training manual ii 2 reg 15 fire safety operational booklet fire control plan muster list", "sibling_family": "", "via": "answer_title", "answer_title": "Where do you find fire-fighting requirements and equipment-maintenance procedures, and how would you learn the FSS Code has changed?", "cross_family": false } ] }, { "qid": "CHE-2026-03-0123-Q001", "text": "Type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2026-03-0123", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8367276191711426, "sibling_score": 0.8367276191711426, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8018048405647278, "sibling_score": 0.8018048405647278, "answer_score": 0.5473710656166076, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8003591299057007, "sibling_score": 0.8003591299057007, "answer_score": 0.5217903822660446, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "CHE-2026-03-0124-Q008", "text": "Type of ship and engine details", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "CHE-2026-03-0124", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P01-001", "score": 0.8243091702461243, "sibling_score": 0.8243091702461243, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q001", "sibling_text": "type of ship sailed and engines details", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.8165448307991028, "sibling_score": 0.8165448307991028, "answer_score": null, "sibling_qid": "CHE-2026-04-0373-Q001S6", "sibling_text": "type of ship specification of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7525782585144043, "sibling_score": 0.7525782585144043, "answer_score": null, "sibling_qid": "KOL-2025-12-2031-Q002", "sibling_text": "type of ship and engine sailed engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "CHE-2026-03-0124-Q015", "text": "FWG scale formation reasons and how controlled", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "CHE-2026-03-0124", "tray": "new", "candidates": [ { "answer_id": "FWG-RO-003", "score": 0.43350231647491455, "sibling_score": 0.43350231647491455, "answer_score": null, "sibling_qid": "KOC-2026-02-1098-Q007", "sibling_text": "fwg production reduces reasons", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "The FWG is not producing enough water or its efficiency has dropped. Reasons, checks and action?", "cross_family": false }, { "answer_id": "FWG-RO-002", "score": 0.3748074769973755, "sibling_score": 0.3748074769973755, "answer_score": null, "sibling_qid": "MUM-2025-05-2289-Q004", "sibling_text": "fwg high salinity reasons", "sibling_family": "Fresh Water & Domestic Systems", "via": "sibling", "answer_title": "The FWG salinity alarm keeps sounding. What are the reasons for high salinity?", "cross_family": true }, { "answer_id": "FWG-RO-004", "score": 0.3363627135753631, "sibling_score": null, "answer_score": 0.3363627135753631, "sibling_qid": "", "sibling_text": "explain the fwg s construction the weir the feed orifice and its purpose and the jacket water temperatures weir a level control baffle holding brine over the heating tubes and directing brine flow keeps tubes submerged and limits level to prevent carryover feed orifice a fixed restriction that meters seawater feed against the vacuum draw and drops feed pressure into the shell sets the correct feed", "sibling_family": "", "via": "answer_title", "answer_title": "Explain the FWG's construction — the weir, the feed orifice and its purpose, and the jacket-water temperatures.", "cross_family": false } ] }, { "qid": "CHE-2026-03-0125-Q005S2", "text": "How many cables are coming out of alternator and what is the reason ? Deciding ques", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator / Generator", "tid": "CHE-2026-03-0125", "tray": "review", "candidates": [ { "answer_id": "SDC-002", "score": 0.6730392575263977, "sibling_score": 0.6730392575263977, "answer_score": null, "sibling_qid": "KOC-2024-01-1325-Q006", "sibling_text": "why 6 terminals in motor why 16 18 connections in alternator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "How do you identify star or delta at the terminal box, and why the terminal counts?", "cross_family": false }, { "answer_id": "CABLE-INS-E-003", "score": 0.6488046050071716, "sibling_score": 0.6488046050071716, "answer_score": 0.47455572485923764, "sibling_qid": "MUM-2026-07-3781-Q005", "sibling_text": "cable used for alternator to msb", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Cable / conductor arrangement: alternator to MSB", "cross_family": false }, { "answer_id": "ALT-MTN-B-001", "score": 0.6297721266746521, "sibling_score": 0.6297721266746521, "answer_score": null, "sibling_qid": "KOL-2019-11-2349-Q002", "sibling_text": "connection on alternator other than main supplly lines", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Routine onboard alternator maintenance checks", "cross_family": false } ] }, { "qid": "CHE-2026-03-0128-Q009", "text": "What is Bollard in Ship Construction?", "family": "Ship Construction & Stability", "subtopic": "DEFINITION", "tid": "CHE-2026-03-0128", "tray": "new", "candidates": [ { "answer_id": "SFP-AB-002", "score": 0.5366997718811035, "sibling_score": 0.5366997718811035, "answer_score": null, "sibling_qid": "MUM-2026-08-3836-Q006", "sibling_text": "class a bulkheads", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "What is an A-class division?", "cross_family": false }, { "answer_id": "SCS-DEF-004", "score": 0.536218523979187, "sibling_score": 0.536218523979187, "answer_score": null, "sibling_qid": "MUM-2026-06-3509-Q004", "sibling_text": "gunwale", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "4. What is the gunwale?", "cross_family": false }, { "answer_id": "COT-09", "score": 0.5224594473838806, "sibling_score": 0.5224594473838806, "answer_score": null, "sibling_qid": "MUM-2023-07-0117-Q001", "sibling_text": "ballast tank construction", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Ballast-tank construction", "cross_family": true } ] }, { "qid": "CHE-2026-03-0132-Q008", "text": "Hot work permit and cross questions", "family": "Workshop & Welding", "subtopic": "Hot Work", "tid": "CHE-2026-03-0132", "tray": "new", "candidates": [ { "answer_id": "WBS-C-001", "score": 0.6071434617042542, "sibling_score": 0.6071434617042542, "answer_score": null, "sibling_qid": "KOL-2025-11-3880-Q003", "sibling_text": "gas welding cross questions", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding, brazing and soldering — what they are, the shipboard processes, and workshop safety", "cross_family": false }, { "answer_id": "WBS-C-003", "score": 0.6020159125328064, "sibling_score": 0.6020159125328064, "answer_score": 0.45995782017707826, "sibling_qid": "MUM-2017-01-2126-Q003", "sibling_text": "what is the name given to dedicated hot work area", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Shipboard hot work — the permit, the designated area, and work near fuel tanks", "cross_family": false }, { "answer_id": "WELD-PATM-008", "score": 0.5640625953674316, "sibling_score": 0.5640625953674316, "answer_score": null, "sibling_qid": "KOL-2024-10-3719-Q004", "sibling_text": "welding types too many cross ques", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding process types and classification", "cross_family": false } ] }, { "qid": "CHE-2026-03-0182-Q001", "text": "Type of engine", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "CHE-2026-03-0182", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.7999672293663025, "sibling_score": 0.7999672293663025, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.7922845482826233, "sibling_score": 0.7922845482826233, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-001", "score": 0.4517221927642822, "sibling_score": null, "answer_score": 0.4517221927642822, "sibling_qid": "", "sibling_text": "1 turbocharger type main engine vs generator engine compressor is centrifugal in both cases only the turbine type differs large slow speed main engine axial flow turbine single stage constant pressure system", "sibling_family": "", "via": "answer_title", "answer_title": "1. Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "CHE-2026-03-0250-Q003", "text": "Type of engines sailed .", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "CHE-2026-03-0250", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8200059533119202, "sibling_score": 0.8200059533119202, "answer_score": null, "sibling_qid": "CHE-2026-03-0250-Q003", "sibling_text": "type of engines sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.7548620104789734, "sibling_score": 0.7548620104789734, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q001", "sibling_text": "type of ship sailed and engines details", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7086650133132935, "sibling_score": 0.7086650133132935, "answer_score": null, "sibling_qid": "KOL-2025-12-2031-Q002", "sibling_text": "type of ship and engine sailed engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "CHE-2026-03-0252-Q001", "text": "Type of ship sailed Type of engine sailed", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "CHE-2026-03-0252", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8599260449409485, "sibling_score": 0.8599260449409485, "answer_score": null, "sibling_qid": "CHE-2026-03-0253-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.8185073733329773, "sibling_score": 0.8185073733329773, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q001", "sibling_text": "type of ship sailed and engines details", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7605503797531128, "sibling_score": 0.7605503797531128, "answer_score": null, "sibling_qid": "KOL-2025-12-2031-Q002", "sibling_text": "type of ship and engine sailed engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "CHE-2026-03-0252-Q007", "text": "what is the safety arrangement in ME C cylinder head(about relief valve)", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Cover / Head", "tid": "CHE-2026-03-0252", "tray": "new", "candidates": [ { "answer_id": "CCE-322-004", "score": 0.6456263065338135, "sibling_score": 0.6456263065338135, "answer_score": null, "sibling_qid": "KOC-2026-05-2129-Q013", "sibling_text": "told me that no cylinder relief valve on me b engines then safety for high pressures in cylinder", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Preventive measures and safety devices", "cross_family": false }, { "answer_id": "SAV-001", "score": 0.6174712777137756, "sibling_score": 0.6174712777137756, "answer_score": null, "sibling_qid": "MUM-2026-03-2935-Q005", "sibling_text": "cylinder head safety valve of main engine diagram", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Construction and working of the main automatic starting air valve", "cross_family": false }, { "answer_id": "DCP-FIXED-A-003", "score": 0.6026219129562378, "sibling_score": 0.6026219129562378, "answer_score": null, "sibling_qid": "MUM-2026-04-1007-Q008", "sibling_text": "me relief valve lifting reason", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Capacities, pressures, relief settings, regulations and calculation", "cross_family": false } ] }, { "qid": "CHE-2026-03-0252-Q010", "text": "hydrogen embrittlement and caustic embrittlement 9a.how will you find sodium hydroxide high in boiler 9b.what is the maximum PH value (i told we maintain 10.5 to 11.5 but he asked the maximum)", "family": "NDT & Material Testing", "subtopic": "Hydrogen Embrittlement", "tid": "CHE-2026-03-0252", "tray": "new", "candidates": [ { "answer_id": "BLR-CHEM-002", "score": 0.6367388963699341, "sibling_score": 0.6367388963699341, "answer_score": 0.4986431390047073, "sibling_qid": "MUM-2026-05-3291-Q008", "sibling_text": "alkaline level which cause caustic embrittlement", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "2. Caustic embrittlement", "cross_family": true }, { "answer_id": "BWTEST-C-001", "score": 0.6294341087341309, "sibling_score": 0.6294341087341309, "answer_score": 0.5635734975337982, "sibling_qid": "KOL-2017-05-1295-Q002", "sibling_text": "boiler ph increased your action", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "pH / acidity control — why pH is held, and what acidic or high-pH water means", "cross_family": true }, { "answer_id": "BLR-CHEM-003", "score": 0.6186685562133789, "sibling_score": 0.6186685562133789, "answer_score": null, "sibling_qid": "KOL-2018-01-1341-Q011", "sibling_text": "by rao alkaline non alkaline salts from where it come how it forms reaction how u will get to know preventive measure chemical name reserve phosphate range motor and in mep he asked boiler water accumulation why we do i answered whenever we overhaul safety valve or any adjustment done but he was not satisfied", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "3. Boiler chemical dosing programme", "cross_family": true } ] }, { "qid": "CHE-2026-03-0253-Q001", "text": "Type of ship sailed Type of engine sailed", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "CHE-2026-03-0253", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8599260449409485, "sibling_score": 0.8599260449409485, "answer_score": null, "sibling_qid": "CHE-2026-03-0253-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.8185073733329773, "sibling_score": 0.8185073733329773, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q001", "sibling_text": "type of ship sailed and engines details", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7605503797531128, "sibling_score": 0.7605503797531128, "answer_score": null, "sibling_qid": "KOL-2025-12-2031-Q002", "sibling_text": "type of ship and engine sailed engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "CHE-2026-03-0255-Q001", "text": "Type of Vessel and Engine sailed,", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "CHE-2026-03-0255", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8441457152366638, "sibling_score": 0.8441457152366638, "answer_score": null, "sibling_qid": "CHE-2026-03-0255-Q001", "sibling_text": "type of vessel and engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.7945193648338318, "sibling_score": 0.7945193648338318, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q001", "sibling_text": "type of ship sailed and engines details", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7317541837692261, "sibling_score": 0.7317541837692261, "answer_score": null, "sibling_qid": "KOL-2025-12-2031-Q002", "sibling_text": "type of ship and engine sailed engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "CHE-2026-03-0346-Q001S2", "text": "Explain Auto transformer starter?", "family": "Electrical - Motors & Starters", "subtopic": "Auto-Transformer Starter", "tid": "CHE-2026-03-0346", "tray": "review", "candidates": [ { "answer_id": "AUTOTX-STR-001", "score": 0.7624581456184387, "sibling_score": 0.7624581456184387, "answer_score": 0.5122672319412231, "sibling_qid": "KOC-2026-08-2157-Q006", "sibling_text": "explain auto transformer starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "1. Draw, construct and explain the auto-transformer starter", "cross_family": false }, { "answer_id": "IMSP-003", "score": 0.7345311045646667, "sibling_score": 0.7345311045646667, "answer_score": 0.5728716999292374, "sibling_qid": "MUM-2022-03-1326-Q007", "sibling_text": "auto transformer starter in detail", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Explain the auto-transformer starter in detail.", "cross_family": false }, { "answer_id": "AUTOTX-STR-002", "score": 0.6598877906799316, "sibling_score": 0.6598877906799316, "answer_score": null, "sibling_qid": "KOL-2021-12-2522-Q001", "sibling_text": "auto transformer starting how it is reducing voltage", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "2. How it reduces starting voltage and current (tap settings)", "cross_family": false } ] }, { "qid": "CHE-2026-03-0347-Q008", "text": "prime mover failure reasons", "family": "Electrical - Generator & Alternator", "subtopic": "Motoring Effect", "tid": "CHE-2026-03-0347", "tray": "new", "candidates": [ { "answer_id": "RPT-A-004", "score": 0.618445098400116, "sibling_score": 0.618445098400116, "answer_score": 0.4588716357946396, "sibling_qid": "KOC-2025-04-1521-Q018", "sibling_text": "if the reverse power trip does not happen what is going to happen to the prime mover", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Motoring action, what it does to the prime mover if the trip fails, and restarting after a reverse-power trip", "cross_family": false }, { "answer_id": "CFF-P02-001", "score": 0.576393723487854, "sibling_score": 0.576393723487854, "answer_score": null, "sibling_qid": "KOL-2022-05-1686-Q013", "sibling_text": "fatigue failure reasons", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Fatigue failure — what it is and where it occurs", "cross_family": true }, { "answer_id": "EMG-DG-P04-004", "score": 0.5749984383583069, "sibling_score": 0.5749984383583069, "answer_score": null, "sibling_qid": "KOC-2025-02-1496-Q004", "sibling_text": "reasons why emergency generator not starting", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Safeties, trips, protections & failure to start / come on load", "cross_family": false } ] }, { "qid": "CHE-2026-03-0349-Q001", "text": "why low voltage trip provided in MCB", "family": "Electrical - Generator & Alternator", "subtopic": "Voltage Dip / Droop", "tid": "CHE-2026-03-0349", "tray": "new", "candidates": [ { "answer_id": "OC-UV-TRIP-001", "score": 0.6418979167938232, "sibling_score": 0.6418979167938232, "answer_score": 0.5517288744449615, "sibling_qid": "CHE-2026-03-0345-Q002S2", "sibling_text": "explain under voltage trip", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Under-voltage trip / no-volt coil — purpose, working, onboard test and calibration", "cross_family": false }, { "answer_id": "OC-UV-TRIP-007", "score": 0.6143155097961426, "sibling_score": 0.6143155097961426, "answer_score": 0.5214885771274567, "sibling_qid": "KOL-2018-01-2168-Q001", "sibling_text": "acb safety explain under voltage trip", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "General overcurrent / undervoltage trips — alarms, values and failure effects", "cross_family": true }, { "answer_id": "REEF-COMP-002", "score": 0.6137609481811523, "sibling_score": 0.6137609481811523, "answer_score": null, "sibling_qid": "KOC-2023-10-1284-Q002", "sibling_text": "refer lo trip control circuit", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Lube-oil low-pressure / differential-pressure trip — how it works, tests and sets", "cross_family": true } ] }, { "qid": "CHE-2026-03-0349-Q006", "text": "How to test low voltage trip ?", "family": "Electrical - Generator & Alternator", "subtopic": "Voltage Dip / Droop", "tid": "CHE-2026-03-0349", "tray": "review", "candidates": [ { "answer_id": "OC-UV-TRIP-001", "score": 0.7049049139022827, "sibling_score": 0.7049049139022827, "answer_score": 0.496892648935318, "sibling_qid": "CHE-2026-08-0658-Q006", "sibling_text": "how to test low voltage trip", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Under-voltage trip / no-volt coil — purpose, working, onboard test and calibration", "cross_family": true }, { "answer_id": "RPT-C-002", "score": 0.611016571521759, "sibling_score": 0.611016571521759, "answer_score": 0.45823940038681027, "sibling_qid": "CHE-2026-03-0349-Q006", "sibling_text": "how to test low voltage trip patro sir transformer working and diagram distance between windings purpose will emg generator run in parallel with main generator cross how to check ir for single conductor purpose of insulation draw explain what happen if leakage current increase", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Testing & trying out the reverse power trip — onboard, at survey, and when it fails", "cross_family": false }, { "answer_id": "IR-TEST-D-008", "score": 0.49292404055595396, "sibling_score": null, "answer_score": 0.49292404055595396, "sibling_qid": "", "sibling_text": "low or unsatisfactory ir how you investigate and what you do step 1 verify the reading correct test voltage clean dry leads sound earth temperature correct step 2 find the cause most low readings are moisture dirt not broken insulation", "sibling_family": "", "via": "answer_title", "answer_title": "Low or unsatisfactory IR — how you investigate and what you do", "cross_family": false } ] }, { "qid": "CHE-2026-03-0349-Q006S2", "text": "Transformer working and diagram ? distance between windings ? Purpose ?", "family": "Electrical - Generator & Alternator", "subtopic": "Voltage Dip / Droop", "tid": "CHE-2026-03-0349", "tray": "new", "candidates": [ { "answer_id": "RPT-C-002", "score": 0.6453381180763245, "sibling_score": 0.6453381180763245, "answer_score": null, "sibling_qid": "CHE-2026-03-0349-Q006", "sibling_text": "how to test low voltage trip patro sir transformer working and diagram distance between windings purpose will emg generator run in parallel with main generator cross how to check ir for single conductor purpose of insulation draw explain what happen if leakage current increase", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Testing & trying out the reverse power trip — onboard, at survey, and when it fails", "cross_family": false }, { "answer_id": "XFMR-THY-D-001", "score": 0.6317542791366577, "sibling_score": 0.6317542791366577, "answer_score": 0.4972927927970886, "sibling_qid": "CHE-2026-08-0657-Q001", "sibling_text": "transformer working and diagram", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Transformer — principle and working", "cross_family": true }, { "answer_id": "IND-MOT-A-002", "score": 0.615895688533783, "sibling_score": 0.615895688533783, "answer_score": null, "sibling_qid": "KOC-2026-09-2184-Q009", "sibling_text": "auto transformer explain how many windings", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "2. Construction and main parts of a three-phase induction motor", "cross_family": true } ] }, { "qid": "CHE-2026-03-0349-Q006S4", "text": "How to check IR for single conductor ?", "family": "Electrical - Generator & Alternator", "subtopic": "Voltage Dip / Droop", "tid": "CHE-2026-03-0349", "tray": "new", "candidates": [ { "answer_id": "IR-TEST-305-001", "score": 0.5677031874656677, "sibling_score": 0.5677031874656677, "answer_score": null, "sibling_qid": "MUM-2026-03-1998-Q004", "sibling_text": "how to check ir of generator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Carrying out the IR (megger) test on an alternator winding", "cross_family": false }, { "answer_id": "IR-TEST-305-003", "score": 0.5470944046974182, "sibling_score": 0.5470944046974182, "answer_score": null, "sibling_qid": "KOC-2026-01-1684-Q001", "sibling_text": "checking ir of a wire in alternator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Checking insulation of a generator cable or alternator-to-MSB cable", "cross_family": false }, { "answer_id": "IRT-C-008", "score": 0.504409670829773, "sibling_score": 0.504409670829773, "answer_score": null, "sibling_qid": "CHE-2026-05-0630-Q003", "sibling_text": "how to check ir of motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "When to test IR; trending", "cross_family": true } ] }, { "qid": "CHE-2026-03-0349-Q006S5", "text": "Purpose of insulation ?", "family": "Electrical - Generator & Alternator", "subtopic": "Voltage Dip / Droop", "tid": "CHE-2026-03-0349", "tray": "new", "candidates": [ { "answer_id": "CABLE-INSUL-D-001", "score": 0.6405417919158936, "sibling_score": 0.6405417919158936, "answer_score": null, "sibling_qid": "KOL-2020-11-0435-Q011", "sibling_text": "insulation", "sibling_family": "", "via": "sibling", "answer_title": "Insulation: materials, classes and required properties", "cross_family": false }, { "answer_id": "INS-CLASS-001", "score": 0.6199734807014465, "sibling_score": 0.6199734807014465, "answer_score": null, "sibling_qid": "MUM-2026-07-3813-Q006", "sibling_text": "define insulation class", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What is meant by insulation class?", "cross_family": true }, { "answer_id": "INS-CLASS-005", "score": 0.5910153985023499, "sibling_score": 0.5910153985023499, "answer_score": 0.4159839957952499, "sibling_qid": "MUM-2026-05-2996-Q003", "sibling_text": "insulation property", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What are the properties of insulation, and where do you find the insulation class of a machine?", "cross_family": true } ] }, { "qid": "CHE-2026-03-0350-Q002", "text": "Why you need AC in ECR", "family": "Refrigeration & AC", "subtopic": "Comfort Zone", "tid": "CHE-2026-03-0350", "tray": "new", "candidates": [ { "answer_id": "REF-CYC-007", "score": 0.4316405951976776, "sibling_score": 0.4316405951976776, "answer_score": null, "sibling_qid": "KOL-2017-01-1273-Q004", "sibling_text": "ac and refer cop comparision why more in ac", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "7. COP and improving refrigeration efficiency", "cross_family": false }, { "answer_id": "ALT-GEN-P04-005", "score": 0.4064822494983673, "sibling_score": 0.4064822494983673, "answer_score": null, "sibling_qid": "KOC-2024-06-1364-Q002", "sibling_text": "advantages of ac", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "AC generator versus DC generator, and why ship supply is AC", "cross_family": true }, { "answer_id": "CAP-CTRL-001", "score": 0.3940681517124176, "sibling_score": 0.3940681517124176, "answer_score": 0.27186426520347595, "sibling_qid": "MUM-2022-08-1017-Q004", "sibling_text": "ac refer capacity control how it s done", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "CG-001 · Capacity control in an AC / refrigeration compressor — why and how", "cross_family": false } ] }, { "qid": "CHE-2026-03-0353-Q005", "text": "What is ripple", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Zener / Diode / Rectifier", "tid": "CHE-2026-03-0353", "tray": "new", "candidates": [ { "answer_id": "RMS-VAL-001", "score": 0.4464184045791626, "sibling_score": 0.4464184045791626, "answer_score": null, "sibling_qid": "KOC-2024-07-2052-Q008", "sibling_text": "what is rms", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "RMS value and its significance", "cross_family": false }, { "answer_id": "TC-A-009", "score": 0.3907441198825836, "sibling_score": 0.3907441198825836, "answer_score": null, "sibling_qid": "KOC-2024-02-1332-Q004", "sibling_text": "oscillator explain", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "The LC circuit, resonance and the oscillator", "cross_family": false }, { "answer_id": "CB-ACB-F-001", "score": 0.3860642910003662, "sibling_score": 0.3860642910003662, "answer_score": null, "sibling_qid": "KOL-2026-04-2984-Q001", "sibling_text": "what is rccb", "sibling_family": "", "via": "sibling", "answer_title": "ACB function & working principle in the ship distribution system", "cross_family": false } ] }, { "qid": "CHE-2026-03-0353-Q012", "text": "How filters works ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Electronic Circuits / Filters", "tid": "CHE-2026-03-0353", "tray": "new", "candidates": [ { "answer_id": "RAC-MAT-320-004", "score": 0.5011458396911621, "sibling_score": 0.5011458396911621, "answer_score": null, "sibling_qid": "KOL-2018-08-1403-Q007", "sibling_text": "filter in a c system", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "4. AHU maintenance, filters and pre-climate-change checks", "cross_family": true }, { "answer_id": "FLT-BF052-005", "score": 0.4977799355983734, "sibling_score": 0.4977799355983734, "answer_score": 0.34839768111705777, "sibling_qid": "MUM-2025-08-2348-Q004", "sibling_text": "what type of filter", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "What type of fuel filter is fitted, and what is a micron in filter rating?", "cross_family": true }, { "answer_id": "EPC-P02-06", "score": 0.49411535263061523, "sibling_score": 0.49411535263061523, "answer_score": null, "sibling_qid": "CHE-2025-08-0269-Q005", "sibling_text": "define harmonic filter", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What are harmonics, where does the high voltage / distortion come from, and what is a harmonic filter — define, use and where fitted?", "cross_family": false } ] }, { "qid": "CHE-2026-03-0360-Q002", "text": "EP motor", "family": "Electrical - Motors & Starters", "subtopic": "", "tid": "CHE-2026-03-0360", "tray": "review", "candidates": [ { "answer_id": "IM-GEN-B-002", "score": 0.6501653790473938, "sibling_score": 0.6501653790473938, "answer_score": null, "sibling_qid": "KOL-2022-08-2588-Q001", "sibling_text": "types of motor in er", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motors onboard and types of induction motors", "cross_family": false }, { "answer_id": "DCMOT-A-001", "score": 0.635917067527771, "sibling_score": 0.635917067527771, "answer_score": null, "sibling_qid": "KOC-2025-07-1558-Q005", "sibling_text": "dc motors where all used in er", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types, characteristics and shipboard use of DC motors", "cross_family": false }, { "answer_id": "DCMOT-CMU-B-001", "score": 0.6134166121482849, "sibling_score": 0.6134166121482849, "answer_score": null, "sibling_qid": "KOC-2023-07-1267-Q008", "sibling_text": "dc motor speed motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "DC motor speed control — the three methods", "cross_family": false } ] }, { "qid": "CHE-2026-03-0487-Q004", "text": "type of ship and engine nomiculture", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "CHE-2026-03-0487", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.7714131474494934, "sibling_score": 0.7714131474494934, "answer_score": null, "sibling_qid": "MUM-2025-08-2357-Q001", "sibling_text": "type of ship type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.7543177008628845, "sibling_score": 0.7543177008628845, "answer_score": null, "sibling_qid": "MUM-2026-07-3668-Q004", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "AC-VE-001", "score": 0.7258267402648926, "sibling_score": 0.7258267402648926, "answer_score": null, "sibling_qid": "MUM-2026-01-2904-Q001", "sibling_text": "what type of ship engine power and nomenclature", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Volumetric efficiency: define it, and if it drops how do you improve it (with bumping clearance)?", "cross_family": false } ] }, { "qid": "CHE-2026-03-0490-Q007", "text": "Type of ship and engine details.", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "CHE-2026-03-0490", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P01-001", "score": 0.8243091702461243, "sibling_score": 0.8243091702461243, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q001", "sibling_text": "type of ship sailed and engines details", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.8165448307991028, "sibling_score": 0.8165448307991028, "answer_score": null, "sibling_qid": "CHE-2026-04-0373-Q001S6", "sibling_text": "type of ship specification of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7525782585144043, "sibling_score": 0.7525782585144043, "answer_score": null, "sibling_qid": "KOL-2025-12-2031-Q002", "sibling_text": "type of ship and engine sailed engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "CHE-2026-03-0496-Q002", "text": "Cabin temp reported as 29, actions as 2e.", "family": "Refrigeration & AC", "subtopic": "HP / LP Trip", "tid": "CHE-2026-03-0496", "tray": "new", "candidates": [ { "answer_id": "TEV-TXV-007", "score": 0.5158668756484985, "sibling_score": 0.5158668756484985, "answer_score": null, "sibling_qid": "MUM-2026-05-3208-Q007", "sibling_text": "tev not working spares not available onboard temp not maintain in meat room what is your action as 2e", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Faulty TEV in a meat/fish room with no spare — diagnosis and management", "cross_family": false }, { "answer_id": "CO2-SYS-002", "score": 0.5068050622940063, "sibling_score": 0.5068050622940063, "answer_score": null, "sibling_qid": "KOC-2024-03-0317-Q003", "sibling_text": "co2 room checks as 2 e", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 maintenance, inspection, testing and survey routines", "cross_family": true }, { "answer_id": "EXH-T-HI-002", "score": 0.49962955713272095, "sibling_score": 0.49962955713272095, "answer_score": 0.34891835451126096, "sibling_qid": "KOC-2026-01-1091-Q010", "sibling_text": "one unit exh temp high possible reasons internal rank jobs done on ship onboard lo tests explain bn value for ae", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "One unit exhaust temperature high — causes, checks and actions", "cross_family": true } ] }, { "qid": "CHE-2026-04-0140-Q001S10", "text": "All answers expected only from Manual exact procedures", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Interlocks", "tid": "CHE-2026-04-0140", "tray": "new", "candidates": [ { "answer_id": "ETP-344-P03-005", "score": 0.5244991779327393, "sibling_score": 0.5244991779327393, "answer_score": null, "sibling_qid": "KOL-2020-12-1890-Q002", "sibling_text": "complete plant up lots of cross questions", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Complete plant start-up (main-engine context)", "cross_family": false }, { "answer_id": "PA-MAN-001", "score": 0.5195963382720947, "sibling_score": 0.5195963382720947, "answer_score": null, "sibling_qid": "MUM-2022-08-0037-Q001", "sibling_text": "pa manual", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What is the P&A Manual (Procedures and Arrangements Manual)?", "cross_family": true }, { "answer_id": "CO2-SYS-002", "score": 0.5105749368667603, "sibling_score": 0.5105749368667603, "answer_score": null, "sibling_qid": "KOC-2022-09-0095-Q006", "sibling_text": "co2 all maintenance expects as in manual not satisfied with normal notes", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 maintenance, inspection, testing and survey routines", "cross_family": true } ] }, { "qid": "CHE-2026-04-0140-Q001S2", "text": "Air system full explanation with safeties and why it's provided ?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Interlocks", "tid": "CHE-2026-04-0140", "tray": "new", "candidates": [ { "answer_id": "ACSS-001", "score": 0.5129779577255249, "sibling_score": 0.5129779577255249, "answer_score": null, "sibling_qid": "MUM-2023-05-2728-Q007", "sibling_text": "main air comp sefty", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Main air-compressor safeties, alarms and trips", "cross_family": true }, { "answer_id": "EXHV-P01-002", "score": 0.5007048845291138, "sibling_score": 0.5007048845291138, "answer_score": null, "sibling_qid": "CHE-2025-10-0447-Q013", "sibling_text": "what is the safety given in exh valve air cyl", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Air spring and soft closing", "cross_family": true }, { "answer_id": "CO2-SYS-005", "score": 0.5004549026489258, "sibling_score": 0.5004549026489258, "answer_score": 0.41779087483882904, "sibling_qid": "KOL-2017-09-0116-Q004", "sibling_text": "bulk co2 system in details safeties and alarms", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 system safeties, CO2-room requirements, alarms and ventilation", "cross_family": true } ] }, { "qid": "CHE-2026-04-0140-Q001S6", "text": "Purifier Conical disk purpose?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Interlocks", "tid": "CHE-2026-04-0140", "tray": "new", "candidates": [ { "answer_id": "PUR-BOWL-P03-FINAL-1-001", "score": 0.545106828212738, "sibling_score": 0.545106828212738, "answer_score": 0.43946602642536164, "sibling_qid": "CHE-2026-05-0605-Q004", "sibling_text": "purifier disc stack", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "1. Disc Stack, Separation Zone and What the Purifier Removes", "cross_family": true }, { "answer_id": "PARD-330-003", "score": 0.5403932332992554, "sibling_score": 0.5403932332992554, "answer_score": null, "sibling_qid": "MUM-2026-05-3266-Q004", "sibling_text": "bottom pairing disc in purifier function", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "How does the paring disc work, and on what principle does it operate?", "cross_family": true }, { "answer_id": "PARD-330-004", "score": 0.5332226157188416, "sibling_score": 0.5332226157188416, "answer_score": 0.4705850392580032, "sibling_qid": "CHE-2025-08-0193-Q005", "sibling_text": "purifer gravity disk selection and paring disk purpose", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "What is the purpose of the paring disc — why does the purifier need it at all?", "cross_family": true } ] }, { "qid": "CHE-2026-04-0145-Q001", "text": "Type of ship ,engine ,status of written paper", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "CHE-2026-04-0145", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.7556401491165161, "sibling_score": 0.7556401491165161, "answer_score": null, "sibling_qid": "MUM-2026-05-3139-Q001", "sibling_text": "status of oral and written type of ship sailed container nomenclature of main and auxiliary engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.7336268424987793, "sibling_score": 0.7336268424987793, "answer_score": null, "sibling_qid": "MUM-2026-03-2606-Q001", "sibling_text": "type of engine and ship major maintenance done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.7263564467430115, "sibling_score": 0.7263564467430115, "answer_score": null, "sibling_qid": "KOC-2026-08-2106-Q001", "sibling_text": "status of written oral company type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false } ] }, { "qid": "CHE-2026-04-0145-Q008", "text": "list the various permits and explain working aloft permit", "family": "Risk & Safety Management", "subtopic": "Permit to Work / Enclosed Space", "tid": "CHE-2026-04-0145", "tray": "new", "candidates": [ { "answer_id": "ESE-P01-003", "score": 0.5071839094161987, "sibling_score": 0.5071839094161987, "answer_score": null, "sibling_qid": "NOI-2026-09-0021-Q007", "sibling_text": "enclosed space permit in details", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "General enclosed-space entry procedure as second engineer", "cross_family": false }, { "answer_id": "ELEC-SAFE-001", "score": 0.4561433792114258, "sibling_score": 0.4561433792114258, "answer_score": null, "sibling_qid": "MUM-2026-05-3321-Q003", "sibling_text": "all electrical isolation permits", "sibling_family": "", "via": "sibling", "answer_title": "Electrical isolation checklist before working on equipment", "cross_family": false }, { "answer_id": "NPDES-330-001", "score": 0.4547352194786072, "sibling_score": 0.4547352194786072, "answer_score": null, "sibling_qid": "MUM-2024-08-0198-Q002", "sibling_text": "general vessel permit", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Explain VGP / General Vessel Permit / NPDES and its purpose under US vessel-discharge compliance", "cross_family": true } ] }, { "qid": "CHE-2026-04-0147-Q006", "text": "What do we enter in orb (a-i entries did not accept?", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "CHE-2026-04-0147", "tray": "new", "candidates": [ { "answer_id": "OWS-ORB-006", "score": 0.5585481524467468, "sibling_score": 0.5585481524467468, "answer_score": null, "sibling_qid": "MUM-2025-09-0447-Q007", "sibling_text": "orb entries", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "6. Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-002", "score": 0.5176289677619934, "sibling_score": 0.5176289677619934, "answer_score": null, "sibling_qid": "CHE-2024-10-0509-Q002", "sibling_text": "orb entries all in detail", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "The Oil Record Book Part I — purpose, the letter codes, and how entries are made", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-004", "score": 0.4723811149597168, "sibling_score": 0.4723811149597168, "answer_score": null, "sibling_qid": "KOC-2026-04-0901-Q013", "sibling_text": "orb weekly entry code and number", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Weekly ORB entries — the mandatory sludge retention record, the bunker entry, and what is voluntary", "cross_family": false } ] }, { "qid": "CHE-2026-04-0150-Q001", "text": "Type of ship sailed( container)", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2026-04-0150", "tray": "review", "candidates": [ { "answer_id": "DB-TORBOX-B-003", "score": 0.8792930245399475, "sibling_score": 0.8792930245399475, "answer_score": null, "sibling_qid": "CHE-2026-04-0150-Q001", "sibling_text": "type of ship sailed container", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "What is a torsion box — definition and construction", "cross_family": false }, { "answer_id": "SOLAS12-BC-A-001", "score": 0.7761500477790833, "sibling_score": 0.7761500477790833, "answer_score": null, "sibling_qid": "MUM-2026-06-3382-Q001", "sibling_text": "type of ship sailed bulk carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "SOLAS definition and scope of a bulk carrier", "cross_family": false }, { "answer_id": "COT-01", "score": 0.765249490737915, "sibling_score": 0.765249490737915, "answer_score": null, "sibling_qid": "KOC-2026-04-0892-Q003", "sibling_text": "type of ship sailed tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Oil-tanker types, definitions and cargo capability", "cross_family": false } ] }, { "qid": "CHE-2026-04-0150-Q011", "text": "With respect to MLC 2nd engineer responsibility which he should focus.", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "CHE-2026-04-0150", "tray": "new", "candidates": [ { "answer_id": "LLC-SURV-P01-001", "score": 0.608749508857727, "sibling_score": 0.608749508857727, "answer_score": null, "sibling_qid": "MUM-2024-07-0188-Q005", "sibling_text": "ll survey things to check as 2nd engineer", "sibling_family": "", "via": "sibling", "answer_title": "Load line survey preparation as Second Engineer: engine-room scope, machinery openings, tanks/vents, valves and overboard checks", "cross_family": false }, { "answer_id": "ISM-2E-A-001", "score": 0.5802491307258606, "sibling_score": 0.5802491307258606, "answer_score": null, "sibling_qid": "CHE-2025-09-0059-Q014", "sibling_text": "ism as a 2nd engr responsibility", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Roles, duties and responsibilities of a Second Engineer under ISM/SMS", "cross_family": true }, { "answer_id": "CAS-ESTOP-007", "score": 0.5642849802970886, "sibling_score": 0.5642849802970886, "answer_score": null, "sibling_qid": "MUM-2024-01-2219-Q001", "sibling_text": "immediate first actions as 2nd engineer", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Major machinery casualty — first actions and taking the ship to a safe port", "cross_family": true } ] }, { "qid": "CHE-2026-04-0150-Q012", "text": "How many elements in MLC 2006.", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "CHE-2026-04-0150", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-007", "score": 0.43835532665252686, "sibling_score": 0.43835532665252686, "answer_score": null, "sibling_qid": "MUM-2026-02-0734-Q007", "sibling_text": "mlc 2006 detainable deficiency", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false }, { "answer_id": "MLC-WRH-B-002", "score": 0.38821297883987427, "sibling_score": 0.38821297883987427, "answer_score": null, "sibling_qid": "MUM-2022-07-0027-Q005", "sibling_text": "mlc 2006 wages rest hours", "sibling_family": "MLC", "via": "sibling", "answer_title": "Work and rest hours under MLC — the criteria, the weekly limit, the intervals", "cross_family": false }, { "answer_id": "MIP-264-007", "score": 0.3685957193374634, "sibling_score": 0.3685957193374634, "answer_score": null, "sibling_qid": "KOL-2022-06-1691-Q001", "sibling_text": "6 motor mep", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Fragmentary 'Motor & MEP' prompt (declared interpretation)", "cross_family": true } ] }, { "qid": "CHE-2026-04-0151-Q003S2", "text": "When entry into force on EEXI, EEDI. GFI ?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "CII / Carbon Intensity", "tid": "CHE-2026-04-0151", "tray": "new", "candidates": [ { "answer_id": "CII-P01-002", "score": 0.4898146092891693, "sibling_score": 0.4898146092891693, "answer_score": 0.34658611565828323, "sibling_qid": "CHE-2025-08-0018-Q005", "sibling_text": "cii when it came into force", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "When did CII enter into force, when are ratings issued, and the implementation timings", "cross_family": false }, { "answer_id": "GFI-572-002", "score": 0.47652778029441833, "sibling_score": 0.47652778029441833, "answer_score": null, "sibling_qid": "CHE-2026-04-0134-Q008", "sibling_text": "what is gfi greenhouse gas fuel intensity entry into force 2027", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Significance of GFI and its implementation / entry-into-force year", "cross_family": false }, { "answer_id": "EEDI-A-002", "score": 0.45132917165756226, "sibling_score": 0.45132917165756226, "answer_score": null, "sibling_qid": "MUM-2022-12-0074-Q009", "sibling_text": "what is eedi eexi ieec details", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "The EEDI Technical File and the IEEC documentation", "cross_family": false } ] }, { "qid": "CHE-2026-04-0152-Q001", "text": "Type of ship sailed", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2026-04-0152", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8457899689674377, "sibling_score": 0.8457899689674377, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8448032140731812, "sibling_score": 0.8448032140731812, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7926929593086243, "sibling_score": 0.7926929593086243, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "CHE-2026-04-0152-Q002S2", "text": "Chapter 2 further sub chapters ?", "family": "IMO Structure & Conventions", "subtopic": "SOLAS Chapters", "tid": "CHE-2026-04-0152", "tray": "new", "candidates": [ { "answer_id": "SOLAS-CH-002", "score": 0.5735581517219543, "sibling_score": 0.5735581517219543, "answer_score": null, "sibling_qid": "KOC-2024-04-0331-Q006", "sibling_text": "solas chapter 2 explain and some cross question", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS Chapter II-1 - construction, machinery and electrical installations", "cross_family": false }, { "answer_id": "SOLAS-CH-003", "score": 0.5666767954826355, "sibling_score": 0.5666767954826355, "answer_score": null, "sibling_qid": "KOC-2025-05-2065-Q008", "sibling_text": "explain solas chapter 2 of 2", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS Chapter II-2 - fire protection, detection and extinction", "cross_family": false }, { "answer_id": "SOLAS-CH-013", "score": 0.5340162515640259, "sibling_score": 0.5340162515640259, "answer_score": null, "sibling_qid": "MUM-2026-07-3797-Q003", "sibling_text": "solas ch12 all sub chapters", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS Chapter XII - additional safety measures for bulk carriers", "cross_family": false } ] }, { "qid": "CHE-2026-04-0152-Q004S2", "text": "GM negative, how to correct with permanent modification? not accepting other methods", "family": "Ship Construction & Stability", "subtopic": "Inclining Experiment", "tid": "CHE-2026-04-0152", "tray": "new", "candidates": [ { "answer_id": "STAB-GZ-P04-003", "score": 0.5062859058380127, "sibling_score": 0.5062859058380127, "answer_score": 0.29123126864433285, "sibling_qid": "KOC-2025-03-0558-Q002", "sibling_text": "draw gz curve showing negative gm", "sibling_family": "", "via": "sibling", "answer_title": "Negative GM and the angle of loll", "cross_family": false }, { "answer_id": "LOLL-P02-004", "score": 0.5010026097297668, "sibling_score": 0.5010026097297668, "answer_score": 0.35320627242326735, "sibling_qid": "KOC-2023-07-0195-Q004", "sibling_text": "negative gm curve with all markings", "sibling_family": "", "via": "sibling", "answer_title": "3. Angle of loll on the GZ curve — the GM condition", "cross_family": false }, { "answer_id": "FSE-P03-002", "score": 0.4830547869205475, "sibling_score": 0.4830547869205475, "answer_score": null, "sibling_qid": "KOL-2019-10-0329-Q005", "sibling_text": "with rolling magnitude so gm reducing is not permanent and so", "sibling_family": "", "via": "sibling", "answer_title": "2. Effect on ship stability — GM, GZ and centre of gravity", "cross_family": false } ] }, { "qid": "CHE-2026-04-0154-Q005", "text": "pilot ladder integrity test ?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Pilot Ladder / Transfer", "tid": "CHE-2026-04-0154", "tray": "new", "candidates": [ { "answer_id": "LBT-TEST-B-003", "score": 0.5339690446853638, "sibling_score": 0.5339690446853638, "answer_score": null, "sibling_qid": "KOC-2024-12-0488-Q004", "sibling_text": "lifeboat load test he didn t accept static and dynamic test where you got this 1 1 and 1 5 he was asking about brake test falls test 6 davit test 4 5 and davit foundation test he accepted 6 and 4 5 times load test", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Winch/davit brake test — static vs dynamic, holding capacity, slippage", "cross_family": false }, { "answer_id": "LBT-TEST-B-001", "score": 0.5280593037605286, "sibling_score": 0.5280593037605286, "answer_score": null, "sibling_qid": "KOC-2026-05-2131-Q006", "sibling_text": "tests in lifeboat davits explain dynamic test how much is the proof load how it is loaded", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat/davit load-test proof loads and test conditions", "cross_family": false }, { "answer_id": "LBT-TEST-B-004", "score": 0.5234701633453369, "sibling_score": 0.5234701633453369, "answer_score": null, "sibling_qid": "KOC-2024-02-0305-Q009", "sibling_text": "int what are the tests done on life boat davits", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Tests carried out on the lifeboat/davit onboard (overview)", "cross_family": false } ] }, { "qid": "CHE-2026-04-0155-Q005", "text": "bowflare?", "family": "Ship Construction & Stability", "subtopic": "DEFINITION", "tid": "CHE-2026-04-0155", "tray": "new", "candidates": [ { "answer_id": "BFS-257-009", "score": 0.4598899483680725, "sibling_score": 0.4598899483680725, "answer_score": null, "sibling_qid": "MUM-2026-05-2998-Q005", "sibling_text": "egb soot bow", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "EGB soot-blowing arrangement and cleaning with the main engine running", "cross_family": true }, { "answer_id": "DRG-B-009", "score": 0.44435709714889526, "sibling_score": 0.44435709714889526, "answer_score": null, "sibling_qid": "KOL-2020-09-0422-Q008", "sibling_text": "bowsing tackle", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Bowsing tackle and tricing pendant", "cross_family": true }, { "answer_id": "OWS-15PPM-008", "score": 0.42932653427124023, "sibling_score": 0.42932653427124023, "answer_score": null, "sibling_qid": "MUM-2025-11-2486-Q007", "sibling_text": "ows why flush with fw", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": true } ] }, { "qid": "CHE-2026-04-0156-Q001", "text": "Type of vessel and written status?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2026-04-0156", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8388389348983765, "sibling_score": 0.8388389348983765, "answer_score": null, "sibling_qid": "CHE-2026-04-0157-Q001", "sibling_text": "type of vessel and written status", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7694024443626404, "sibling_score": 0.7694024443626404, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q001", "sibling_text": "type of vessel engine make written and oral status", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.7034627795219421, "sibling_score": 0.7034627795219421, "answer_score": null, "sibling_qid": "MUM-2026-06-3459-Q001", "sibling_text": "type of ship sail and status of other function", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false } ] }, { "qid": "CHE-2026-04-0156-Q004", "text": "If 3E and 4E are fighting and 3E telling he will not handle generator what will you do?", "family": "ISM Code", "subtopic": "Human Element", "tid": "CHE-2026-04-0156", "tray": "new", "candidates": [ { "answer_id": "NO-VOLT-001", "score": 0.41813158988952637, "sibling_score": 0.41813158988952637, "answer_score": 0.3041669145226478, "sibling_qid": "MUM-2025-05-1501-Q002", "sibling_text": "3e started the generator voltage not coming actions as 2e", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "The 3/E reports the generator has started but no voltage is showing — reasons, and your actions as 2/E", "cross_family": true }, { "answer_id": "LS-IMB-A-001", "score": 0.3655814528465271, "sibling_score": 0.3655814528465271, "answer_score": null, "sibling_qid": "KOC-2024-05-1356-Q006", "sibling_text": "off load problematic generator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Two paralleled generators sharing unequal load — cause and correction", "cross_family": true }, { "answer_id": "ISM-2E-A-004", "score": 0.3648660480976105, "sibling_score": 0.3648660480976105, "answer_score": null, "sibling_qid": "KOC-2025-03-0931-Q017", "sibling_text": "works done as 3e", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Shipboard jobs, machineries and maintenance areas under the Second Engineer", "cross_family": false } ] }, { "qid": "CHE-2026-04-0158-Q001", "text": ".ship type", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2026-04-0158", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8144415020942688, "sibling_score": 0.8144415020942688, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.7948290109634399, "sibling_score": 0.7948290109634399, "answer_score": 0.5065393686294556, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7946827411651611, "sibling_score": 0.7946827411651611, "answer_score": 0.5434755146503448, "sibling_qid": "CHE-2026-05-0614-Q001", "sibling_text": "start from type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "CHE-2026-04-0159-Q001", "text": "Type of ship sailed (chemical)", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2026-04-0159", "tray": "review", "candidates": [ { "answer_id": "CPFE-583-002", "score": 0.8160476088523865, "sibling_score": 0.8160476088523865, "answer_score": null, "sibling_qid": "MUM-2026-02-0791-Q002", "sibling_text": "types of ships sailed product chemical", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Why a submerged hydraulic pump on a product or chemical tanker — and what makes a cargo pump different", "cross_family": false }, { "answer_id": "IBC-BCH-B-004", "score": 0.7532975077629089, "sibling_score": 0.7532975077629089, "answer_score": null, "sibling_qid": "MUM-2026-05-3156-Q001", "sibling_text": "type of ships chemical tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Certificate of Fitness and MARPOL Annex II in practice", "cross_family": false }, { "answer_id": "BCH-IBC-A-001", "score": 0.7238947153091431, "sibling_score": 0.7238947153091431, "answer_score": 0.5011629104614258, "sibling_qid": "CHE-2026-03-0128-Q001", "sibling_text": "type of chemical tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type 1, Type 2 and Type 3 chemical tankers — the ship-type classification", "cross_family": false } ] }, { "qid": "CHE-2026-04-0161-Q008", "text": "As a 2nd engineer what will you do in a safety committee meeting what all things you talk about", "family": "ISM Code", "subtopic": "SMS / Functional Requirements", "tid": "CHE-2026-04-0161", "tray": "new", "candidates": [ { "answer_id": "RA-MGMT-B-001", "score": 0.6493973135948181, "sibling_score": 0.6493973135948181, "answer_score": null, "sibling_qid": "CHE-2026-09-3917-Q006", "sibling_text": "risk assessment why and your actions as second engineer", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "How is a shipboard risk assessment prepared and carried out?", "cross_family": false }, { "answer_id": "ISM-2E-C-001", "score": 0.6017733216285706, "sibling_score": 0.6017733216285706, "answer_score": null, "sibling_qid": "KOC-2023-11-0242-Q001", "sibling_text": "ism audit preparation as second engineer exclude documentation and cosmetics part what will you do has a second engineer he needs to hear management level answer like training juniors etc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM audit / survey preparation as Second Engineer — beyond the paperwork", "cross_family": false }, { "answer_id": "RISK-RA-C-001", "score": 0.5895010232925415, "sibling_score": 0.5895010232925415, "answer_score": null, "sibling_qid": "CHE-2026-02-0484-Q001", "sibling_text": "as a second engineer what are the safety checks u do in work shop machineries", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "Preparing and carrying out a shipboard risk assessment", "cross_family": true } ] }, { "qid": "CHE-2026-04-0163-Q003", "text": "Type of ship sailed", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2026-04-0163", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8457899689674377, "sibling_score": 0.8457899689674377, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8448032140731812, "sibling_score": 0.8448032140731812, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7926929593086243, "sibling_score": 0.7926929593086243, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "CHE-2026-04-0164-Q001", "text": "type of ship sailed( Lpg carrier)", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2026-04-0164", "tray": "review", "candidates": [ { "answer_id": "LPG-LNG-009", "score": 0.8845767974853516, "sibling_score": 0.8845767974853516, "answer_score": 0.5411488234996795, "sibling_qid": "CHE-2026-04-0164-Q001", "sibling_text": "type of ship sailed lpg carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Gas-carrier fundamentals and ship-specific traps", "cross_family": false }, { "answer_id": "IGC-GAS-004", "score": 0.7683188915252686, "sibling_score": 0.7683188915252686, "answer_score": null, "sibling_qid": "KOL-2025-08-1014-Q002", "sibling_text": "type of ship sailed lpg classification of gas carriers of as per igc code", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Ship-type classification under the IGC Code — 1G / 2G / 2PG / 3G", "cross_family": true }, { "answer_id": "COT-01", "score": 0.7435172200202942, "sibling_score": 0.7435172200202942, "answer_score": null, "sibling_qid": "KOC-2026-04-0892-Q003", "sibling_text": "type of ship sailed tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Oil-tanker types, definitions and cargo capability", "cross_family": false } ] }, { "qid": "CHE-2026-04-0164-Q008", "text": "What is cycle, how many cycle in your ship, how it produced, In AC sin wave what is represents the x -axis, y-axis", "family": "Electrical - Generator & Alternator", "subtopic": "Frequency", "tid": "CHE-2026-04-0164", "tray": "new", "candidates": [ { "answer_id": "ALT-GEN-P03-001", "score": 0.5853825211524963, "sibling_score": 0.5853825211524963, "answer_score": null, "sibling_qid": "CHE-2026-03-0351-Q001", "sibling_text": "how one cycle of alternating current is produced", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Alternator/generator working principle and onboard electricity generation", "cross_family": false }, { "answer_id": "SYNC-B-003", "score": 0.5489705801010132, "sibling_score": 0.5489705801010132, "answer_score": null, "sibling_qid": "MUM-2026-09-3873-Q007", "sibling_text": "explain phase sequence and phase angle with the sinusoidal wave diagram", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Phase sequence — what it is and how it is matched", "cross_family": false }, { "answer_id": "ALT-GEN-P04-007", "score": 0.5484492182731628, "sibling_score": 0.5484492182731628, "answer_score": null, "sibling_qid": "KOC-2024-06-1364-Q001", "sibling_text": "electrical configuration of ship what is frequency", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Frequency, poles, speed and 50/60 Hz relation", "cross_family": false } ] }, { "qid": "CHE-2026-04-0164-Q012S2", "text": "Purpose of AVR ? DECIDING QUES", "family": "Electrical - Motors & Starters", "subtopic": "Induction Motor (General / Working)", "tid": "CHE-2026-04-0164", "tray": "new", "candidates": [ { "answer_id": "AVR-EXC-A-001", "score": 0.5512058734893799, "sibling_score": 0.5512058734893799, "answer_score": 0.3704133704304695, "sibling_qid": "KOC-2025-01-1468-Q004", "sibling_text": "avr purpose", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "What is the purpose and function of the AVR?", "cross_family": true }, { "answer_id": "AVR-EXC-B-001", "score": 0.5140320062637329, "sibling_score": 0.5140320062637329, "answer_score": 0.28274523466825485, "sibling_qid": "KOL-2025-11-2903-Q001", "sibling_text": "what is avr purpose and function in details", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Explain the AVR working principle and control-loop operation.", "cross_family": true }, { "answer_id": "AVR-EXC-F-001", "score": 0.49395984411239624, "sibling_score": 0.49395984411239624, "answer_score": null, "sibling_qid": "CHE-2025-08-0299-Q006", "sibling_text": "avr and asked to explain carbon pile po deciding questions", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "How does a carbon-pile AVR / regulator work?", "cross_family": true } ] }, { "qid": "CHE-2026-04-0166-Q002", "text": "bowflare?", "family": "Ship Construction & Stability", "subtopic": "DEFINITION", "tid": "CHE-2026-04-0166", "tray": "new", "candidates": [ { "answer_id": "BFS-257-009", "score": 0.4598899483680725, "sibling_score": 0.4598899483680725, "answer_score": null, "sibling_qid": "MUM-2026-05-2998-Q005", "sibling_text": "egb soot bow", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "EGB soot-blowing arrangement and cleaning with the main engine running", "cross_family": true }, { "answer_id": "DRG-B-009", "score": 0.44435709714889526, "sibling_score": 0.44435709714889526, "answer_score": null, "sibling_qid": "KOL-2020-09-0422-Q008", "sibling_text": "bowsing tackle", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Bowsing tackle and tricing pendant", "cross_family": true }, { "answer_id": "OWS-15PPM-008", "score": 0.42932653427124023, "sibling_score": 0.42932653427124023, "answer_score": null, "sibling_qid": "MUM-2025-11-2486-Q007", "sibling_text": "ows why flush with fw", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": true } ] }, { "qid": "CHE-2026-04-0167-Q009", "text": "What is transom space what you will check over there", "family": "Ship Construction & Stability", "subtopic": "Stern Frame / Transom", "tid": "CHE-2026-04-0167", "tray": "review", "candidates": [ { "answer_id": "DUS-P5-03", "score": 0.7120950818061829, "sibling_score": 0.7120950818061829, "answer_score": null, "sibling_qid": "NOI-2026-09-0006-Q003", "sibling_text": "transom space", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Stern frame construction, cross-section and rudder-axis sketch", "cross_family": false }, { "answer_id": "PPS-230-004", "score": 0.5538614392280579, "sibling_score": 0.5538614392280579, "answer_score": null, "sibling_qid": "NOI-2026-09-0006-Q004", "sibling_text": "panting pounding arrangements in transom space", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Forward strengthening to resist pounding / slamming", "cross_family": false }, { "answer_id": "CHK-RM-001", "score": 0.5104888677597046, "sibling_score": 0.5104888677597046, "answer_score": null, "sibling_qid": "MUM-2026-06-3625-Q012", "sibling_text": "how it is connected to the ship hull", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "What are chocks? Function, types, where fitted and how placed — which have the biggest area, and how does the bedplate connect to the hull?", "cross_family": false } ] }, { "qid": "CHE-2026-04-0170-Q001S3", "text": "Sulzer RTA and RND engine difference?", "family": "SOLAS - Fire Safety", "subtopic": "CO2 System", "tid": "CHE-2026-04-0170", "tray": "new", "candidates": [ { "answer_id": "VIT-MECH-C-002", "score": 0.5739929676055908, "sibling_score": 0.5739929676055908, "answer_score": null, "sibling_qid": "KOL-2021-01-1572-Q001", "sibling_text": "type of engine vit in sulzer rta", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Sulzer RTA VIT — suction- and spill-valve controlled injection", "cross_family": true }, { "answer_id": "RTFLEX-319-001", "score": 0.5530883073806763, "sibling_score": 0.5530883073806763, "answer_score": 0.4980038613080978, "sibling_qid": "KOL-2022-01-1652-Q002", "sibling_text": "how rt flex engine different from conventional sulzer engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "RT-flex versus RTA, MAN ME and conventional camshaft engines", "cross_family": true }, { "answer_id": "RTFLEX-319-002", "score": 0.5104402303695679, "sibling_score": 0.5104402303695679, "answer_score": 0.4368570357561111, "sibling_qid": "KOL-2016-11-3017-Q001", "sibling_text": "engine type rt flex", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "RT-flex overview, 'describe your engine', working and the type designation", "cross_family": true } ] }, { "qid": "CHE-2026-04-0259-Q001", "text": "ME Specification", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "CHE-2026-04-0259", "tray": "new", "candidates": [ { "answer_id": "AEME-DIFF-001", "score": 0.598359227180481, "sibling_score": 0.598359227180481, "answer_score": null, "sibling_qid": "MUM-2024-09-2770-Q002", "sibling_text": "me ae type and specs", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": true }, { "answer_id": "ENG-NOM-001", "score": 0.5525036454200745, "sibling_score": 0.5525036454200745, "answer_score": 0.3368705689907074, "sibling_qid": "MUM-2026-06-3420-Q002", "sibling_text": "nomenclature of me ae explain full", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Nomenclature of ME and AE (asked together)", "cross_family": false }, { "answer_id": "MEGI-304-002", "score": 0.5313129425048828, "sibling_score": 0.5313129425048828, "answer_score": null, "sibling_qid": "KOL-2026-01-2036-Q001", "sibling_text": "what is me g", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "2. ME-GI / ME-GA / ME-G and recent dual-fuel engine advancements", "cross_family": true } ] }, { "qid": "CHE-2026-04-0262-Q001", "text": "Type of engine, internal is checking your CDC stamp page", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "CHE-2026-04-0262", "tray": "new", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.5751192569732666, "sibling_score": 0.5751192569732666, "answer_score": null, "sibling_qid": "KOL-2026-03-2048-Q001", "sibling_text": "type of engine done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "MCC-MEB-P01-001", "score": 0.5430180430412292, "sibling_score": 0.5430180430412292, "answer_score": null, "sibling_qid": "MUM-2026-01-1242-Q004", "sibling_text": "type of engine mcc engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "MC-C (\"Compact\") engine — design and the main constructional differences from MC", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.53647381067276, "sibling_score": 0.53647381067276, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false } ] }, { "qid": "CHE-2026-04-0368-Q017", "text": "What is Zener barrier? Where is it? What is insintrically safe? How the circuit is?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Zener / Diode / Rectifier", "tid": "CHE-2026-04-0368", "tray": "review", "candidates": [ { "answer_id": "HAZ-EX-B-001", "score": 0.7537489533424377, "sibling_score": 0.7537489533424377, "answer_score": 0.4389186531305313, "sibling_qid": "CHE-2026-03-0358-Q005", "sibling_text": "zener barrier working in intrinsically safe", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Intrinsically safe (Ex i) equipment — what it is, how it works, where it is used, how you identify it", "cross_family": false }, { "answer_id": "FSF-BF073-004", "score": 0.7482735514640808, "sibling_score": 0.7482735514640808, "answer_score": null, "sibling_qid": "CHE-2026-03-0359-Q001", "sibling_text": "zener diode zener barrier working in intrinsically safe", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a magnetic fail safe?", "cross_family": false }, { "answer_id": "PR-SAFE-A-004", "score": 0.6151918768882751, "sibling_score": 0.6151918768882751, "answer_score": null, "sibling_qid": "KOL-2016-12-0035-Q004", "sibling_text": "pump room safety intrinsically safe means what i said about zener barrier basically explained regarding the pp room circuit with low volt and curret", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Pump-room electrical safety, lighting and portable equipment", "cross_family": true } ] }, { "qid": "CHE-2026-04-0369-Q001S3", "text": "Why capacitor?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Inverter / VFD", "tid": "CHE-2026-04-0369", "tray": "new", "candidates": [ { "answer_id": "TCAP-B-007", "score": 0.649865448474884, "sibling_score": 0.649865448474884, "answer_score": 0.42562114000320433, "sibling_qid": "MUM-2026-05-3193-Q003", "sibling_text": "capacitor working", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Capacitor — how it works, and how you test its condition", "cross_family": false }, { "answer_id": "TCAP-B-008", "score": 0.6196823716163635, "sibling_score": 0.6196823716163635, "answer_score": 0.4427222996950149, "sibling_qid": "MUM-2026-02-2915-Q002", "sibling_text": "why sealing fan has capacitor", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Why a capacitor in a ceiling fan and a single-phase motor — and does it disconnect after starting?", "cross_family": false }, { "answer_id": "IR-TEST-D-016", "score": 0.42712935507297517, "sibling_score": null, "answer_score": 0.42712935507297517, "sibling_qid": "", "sibling_text": "capacitors in a single phase induction motor why they are needed single phase winding alone pulsating field no starting torque runs if nudged won t self start capacitor in series with the auxiliary start winding shifts that winding s current out of phase", "sibling_family": "", "via": "answer_title", "answer_title": "Capacitors in a single-phase induction motor — why they are needed", "cross_family": false } ] }, { "qid": "CHE-2026-04-0370-Q002S2", "text": "What are the associated safeties?", "family": "Electrical - Switchgear & Protection", "subtopic": "Circuit Breakers (ACB / VCB / SF6)", "tid": "CHE-2026-04-0370", "tray": "new", "candidates": [ { "answer_id": "REEF-SAFE-001", "score": 0.5879150629043579, "sibling_score": 0.5879150629043579, "answer_score": null, "sibling_qid": "MUM-2026-03-1306-Q024", "sibling_text": "refer safeties", "sibling_family": "Safety Management & Emergency", "via": "sibling", "answer_title": "Refrigeration plant and reefer-room safeties — what protects the machinery, and what protects the man?", "cross_family": true }, { "answer_id": "CB-ACBVCB-B-001", "score": 0.5803799033164978, "sibling_score": 0.5803799033164978, "answer_score": null, "sibling_qid": "MUM-2026-09-3920-Q011", "sibling_text": "acb safeties", "sibling_family": "Electrical - Switchgear & Protection", "via": "sibling", "answer_title": "ACB/main circuit breaker safeties, trips, settings and testing", "cross_family": false }, { "answer_id": "IGAT-583-001", "score": 0.5760741233825684, "sibling_score": 0.5760741233825684, "answer_score": null, "sibling_qid": "KOL-2017-03-0078-Q002", "sibling_text": "i g safeties", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "State all the alarms, trips and safety cut-outs provided on a tanker inert gas (IG) system.", "cross_family": true } ] }, { "qid": "CHE-2026-04-0370-Q002S4", "text": "What is main contact and arc contact? How it's working?", "family": "Electrical - Switchgear & Protection", "subtopic": "Circuit Breakers (ACB / VCB / SF6)", "tid": "CHE-2026-04-0370", "tray": "new", "candidates": [ { "answer_id": "CBR-ARC-G-002", "score": 0.42490366101264954, "sibling_score": 0.42490366101264954, "answer_score": 0.28239494413137434, "sibling_qid": "CHE-2026-05-0630-Q007", "sibling_text": "acb maintenance working how many contacts are there", "sibling_family": "Electrical - Switchgear & Protection", "via": "sibling", "answer_title": "ACB construction, contacts, arc chutes, auxiliaries and VCB parts", "cross_family": false }, { "answer_id": "HV-SYS-P06-003", "score": 0.35615020990371704, "sibling_score": 0.35615020990371704, "answer_score": null, "sibling_qid": "KOL-2023-10-2680-Q005", "sibling_text": "what is arc", "sibling_family": "", "via": "sibling", "answer_title": "Arc flash, arc blast and arcing control in HV systems", "cross_family": false }, { "answer_id": "AVR-EXC-F-002", "score": 0.31886041164398193, "sibling_score": 0.31886041164398193, "answer_score": null, "sibling_qid": "KOC-2024-01-1323-Q005", "sibling_text": "avr types explain vibrating contactor avr", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "How does a vibrating-contact voltage regulator work?", "cross_family": true } ] }, { "qid": "CHE-2026-04-0370-Q002S5", "text": "Arc and air is there, why not fire takes place?What maintenance to be done?Why?", "family": "Electrical - Switchgear & Protection", "subtopic": "Circuit Breakers (ACB / VCB / SF6)", "tid": "CHE-2026-04-0370", "tray": "new", "candidates": [ { "answer_id": "CBR-ARC-G-001", "score": 0.5727894306182861, "sibling_score": 0.5727894306182861, "answer_score": null, "sibling_qid": "KOC-2026-02-1703-Q012", "sibling_text": "how arc is extinguished", "sibling_family": "", "via": "sibling", "answer_title": "Arc formation, arc quenching and arc-blast hazard", "cross_family": false }, { "answer_id": "EXD-EXI-A-002", "score": 0.5558791160583496, "sibling_score": 0.5558791160583496, "answer_score": null, "sibling_qid": "KOC-2023-12-1312-Q003", "sibling_text": "maintenance on flame proof equipment", "sibling_family": "", "via": "sibling", "answer_title": "Ex d (flameproof / explosion-proof) — construction, shipboard applications and maintenance", "cross_family": false }, { "answer_id": "CO2-SYS-002", "score": 0.5531129240989685, "sibling_score": 0.5531129240989685, "answer_score": null, "sibling_qid": "CHE-2024-02-0005-Q008", "sibling_text": "maintenance carried out in co2 fixed fire fighting system", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 maintenance, inspection, testing and survey routines", "cross_family": true } ] }, { "qid": "CHE-2026-04-0370-Q009", "text": "What type of ship you sailed ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2026-04-0370", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.7880933880805969, "sibling_score": 0.7880933880805969, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7870743274688721, "sibling_score": 0.7870743274688721, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7446247935295105, "sibling_score": 0.7446247935295105, "answer_score": null, "sibling_qid": "MUM-2026-06-3490-Q006", "sibling_text": "engine sailed type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "CHE-2026-04-0373-Q001S10", "text": "Why jack bolts in sulzer engine?", "family": "2-Stroke - Reversing & Maneuvering", "subtopic": "Lost Motion (Sulzer)", "tid": "CHE-2026-04-0373", "tray": "new", "candidates": [ { "answer_id": "THR-BRG-A-001", "score": 0.5438064336776733, "sibling_score": 0.5438064336776733, "answer_score": null, "sibling_qid": "KOC-2023-03-1811-Q007", "sibling_text": "thrust bearing clearance in man and sulzer in sulzer where do you place hydraulic jack", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you check, measure, limit and adjust main-engine thrust bearing clearance?", "cross_family": true }, { "answer_id": "HYD-JACK-001", "score": 0.5236784219741821, "sibling_score": 0.5236784219741821, "answer_score": null, "sibling_qid": "KOL-2017-01-1265-Q001", "sibling_text": "jack bolt function and everythng related to it", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Hydraulic jack — construction, components, sealing and basic working", "cross_family": true }, { "answer_id": "TB-BEAR-001", "score": 0.5073904395103455, "sibling_score": 0.5073904395103455, "answer_score": null, "sibling_qid": "KOC-2022-07-0972-Q006", "sibling_text": "sulzer thrust bearing clearance where keeping jacks how much is the value", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Thrust bearing clearance — measurement procedure & value", "cross_family": true } ] }, { "qid": "CHE-2026-04-0373-Q001S15", "text": "Checks to be done in crankcase after crash manoeuvring?", "family": "2-Stroke - Crankcase & Venting", "subtopic": "", "tid": "CHE-2026-04-0373", "tray": "new", "candidates": [ { "answer_id": "CRKC-INSP-002", "score": 0.6225981712341309, "sibling_score": 0.6225981712341309, "answer_score": 0.48608521819114686, "sibling_qid": "KOL-2018-03-3130-Q003", "sibling_text": "ship grounded what all checks to be done in crankcase", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Quick crankcase inspection after rough weather or grounding (short port stay)", "cross_family": true }, { "answer_id": "CRKC-INSP-001", "score": 0.6134926080703735, "sibling_score": 0.6134926080703735, "answer_score": null, "sibling_qid": "KOL-2018-01-3120-Q002", "sibling_text": "crankcase inspection after grounding", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Routine main-engine crankcase inspection — checks as 2/E", "cross_family": true }, { "answer_id": "CRK-DEFL-006", "score": 0.6059028506278992, "sibling_score": 0.6059028506278992, "answer_score": 0.4937613129615784, "sibling_qid": "KOL-2019-11-3288-Q003", "sibling_text": "crankshaft checks after rough weather", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Checks after grounding, refloating or heavy weather", "cross_family": true } ] }, { "qid": "CHE-2026-04-0373-Q001S2", "text": "SLOC New circular for nitrogen accumulator charge?", "family": "Lube Oil System", "subtopic": "Fault Diagnosis / 2E Action", "tid": "CHE-2026-04-0373", "tray": "new", "candidates": [ { "answer_id": "TOP-BRC-004", "score": 0.5097236037254333, "sibling_score": 0.5097236037254333, "answer_score": 0.37335950434207915, "sibling_qid": "MUM-2026-03-2642-Q025", "sibling_text": "how will u charge nitrogen in top bracing", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "4. Hydraulic accumulator, nitrogen charge and relief-valve pressure", "cross_family": true }, { "answer_id": "LPG-LNG-006", "score": 0.4964276850223541, "sibling_score": 0.4964276850223541, "answer_score": null, "sibling_qid": "MUM-2026-08-3860-Q008", "sibling_text": "nitrogen generator working", "sibling_family": "", "via": "sibling", "answer_title": "Nitrogen generator, dry IG, and padding on gas carriers", "cross_family": false }, { "answer_id": "ALPHA-LUB-A-003", "score": 0.4960215091705322, "sibling_score": 0.4960215091705322, "answer_score": null, "sibling_qid": "CHE-2026-05-0594-Q003", "sibling_text": "alpha lubri nitrogen accumulator charging how much bar accumulation pressure test internal and external tev why", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Alpha lubricator overhaul, checks and local maintenance", "cross_family": true } ] }, { "qid": "CHE-2026-04-0374-Q001", "text": "Type of ship sailed ( high or low voltage) LV ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2026-04-0374", "tray": "review", "candidates": [ { "answer_id": "T038-P01-002", "score": 0.8482670187950134, "sibling_score": 0.8482670187950134, "answer_score": null, "sibling_qid": "CHE-2026-04-0374-Q001", "sibling_text": "type of ship sailed high or low voltage lv ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "HV system onboard — layout, components, applications, earthing & protection", "cross_family": false }, { "answer_id": "HV-SYS-P02-001", "score": 0.6407182812690735, "sibling_score": 0.6407182812690735, "answer_score": 0.5129378199577331, "sibling_qid": "KOL-2019-04-2283-Q001", "sibling_text": "high voltage use onboard ship", "sibling_family": "", "via": "sibling", "answer_title": "Why high voltage is used onboard ships", "cross_family": false }, { "answer_id": "T038-P01-001", "score": 0.6328383684158325, "sibling_score": 0.6328383684158325, "answer_score": 0.4863094061613083, "sibling_qid": "KOL-2025-08-2820-Q001", "sibling_text": "hv voltage of your ship", "sibling_family": "", "via": "sibling", "answer_title": "What is a marine high-voltage system, and what counts as HV onboard?", "cross_family": false } ] }, { "qid": "CHE-2026-04-0374-Q002S3", "text": "Why earth system given in high voltage", "family": "Electrical - High Voltage", "subtopic": "", "tid": "CHE-2026-04-0374", "tray": "new", "candidates": [ { "answer_id": "T038-P01-002", "score": 0.6244193315505981, "sibling_score": 0.6244193315505981, "answer_score": null, "sibling_qid": "MUM-2026-07-3700-Q001", "sibling_text": "high voltage system", "sibling_family": "Electrical - High Voltage", "via": "sibling", "answer_title": "HV system onboard — layout, components, applications, earthing & protection", "cross_family": false }, { "answer_id": "EARTH-NEU-02A-001", "score": 0.6080021858215332, "sibling_score": 0.6080021858215332, "answer_score": null, "sibling_qid": "CHE-2026-03-0353-Q009", "sibling_text": "why earthed neutral system on high voltage", "sibling_family": "", "via": "sibling", "answer_title": "Earthed (neutral-earth) system — what it is, why we use it, pros and cons", "cross_family": false }, { "answer_id": "NER-HV-P04-002", "score": 0.6078768968582153, "sibling_score": 0.6078768968582153, "answer_score": null, "sibling_qid": "KOL-2025-08-2847-Q010", "sibling_text": "system for neutral earth for high voltage value of ner in high voltage", "sibling_family": "", "via": "sibling", "answer_title": "How the NER value is selected/calculated, and its construction and material", "cross_family": false } ] }, { "qid": "CHE-2026-04-0374-Q002S4", "text": "What earth system in LV?", "family": "Electrical - Distribution & Earthing", "subtopic": "Neutral Connection / Earthing", "tid": "CHE-2026-04-0374", "tray": "new", "candidates": [ { "answer_id": "ENER-P03-001", "score": 0.5228806734085083, "sibling_score": 0.5228806734085083, "answer_score": 0.3254461020231247, "sibling_qid": "CHE-2026-04-0374-Q002", "sibling_text": "neutral earth system", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Why the LV system is insulated but the HV system is earthed", "cross_family": true }, { "answer_id": "EARTH-NEU-02A-001", "score": 0.5222674012184143, "sibling_score": 0.5222674012184143, "answer_score": null, "sibling_qid": "KOC-2025-03-1507-Q009", "sibling_text": "neutral earth system", "sibling_family": "", "via": "sibling", "answer_title": "Earthed (neutral-earth) system — what it is, why we use it, pros and cons", "cross_family": false }, { "answer_id": "T038-P01-003", "score": 0.5180713534355164, "sibling_score": 0.5180713534355164, "answer_score": 0.32889573425054547, "sibling_qid": "MUM-2026-06-3614-Q006", "sibling_text": "hv lv system", "sibling_family": "Electrical - High Voltage", "via": "sibling", "answer_title": "HV vs LV onboard — systems, equipment and motor terminal boxes", "cross_family": true } ] }, { "qid": "CHE-2026-04-0376-Q005", "text": "What is droop? If droop is not there what will happen? [ : External shenoy", "family": "Electrical - Generator & Alternator", "subtopic": "Voltage Dip / Droop", "tid": "CHE-2026-04-0376", "tray": "new", "candidates": [ { "answer_id": "AVRD-618-001", "score": 0.5205652117729187, "sibling_score": 0.5205652117729187, "answer_score": 0.26410270035266875, "sibling_qid": "KOC-2022-12-1214-Q001", "sibling_text": "avr droop", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "What is AVR droop, and why is it required?", "cross_family": false }, { "answer_id": "GOV-P03-002", "score": 0.27530308067798615, "sibling_score": null, "answer_score": 0.27530308067798615, "sibling_qid": "", "sibling_text": "droop isochronous operation and load sharing droop no load speed full load speed full load or rated speed 100 using the governor maker s stated convention a downward sloping speed versus load line purpose stable predictable load sharing of parallel sets it stops governors fighting or hunting for the load", "sibling_family": "", "via": "answer_title", "answer_title": "Droop, isochronous operation and load sharing", "cross_family": false }, { "answer_id": "DROOP-001", "score": 0.27502480894327164, "sibling_score": null, "answer_score": 0.27502480894327164, "sibling_qid": "", "sibling_text": "governor speed droop what why setting and formula droop steady state speed and frequency drops as load increases for the oral graph it is normally treated as a straight falling characteristic but actual governor rack behaviour need not be perfectly linear purpose 1 stability without droop the governor overshoots and hunts on every load change", "sibling_family": "", "via": "answer_title", "answer_title": "Governor / speed droop — what, why, setting and formula", "cross_family": false } ] }, { "qid": "CHE-2026-04-0376-Q008", "text": "Laceration in 4s engine", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Engine Theory / Performance", "tid": "CHE-2026-04-0376", "tray": "new", "candidates": [ { "answer_id": "SCAV-323-P01-002", "score": 0.4450417160987854, "sibling_score": 0.4450417160987854, "answer_score": null, "sibling_qid": "KOC-2023-03-1808-Q004", "sibling_text": "scavenge fire in 4th unit u can t stop engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Fire in one unit, engine running and cannot be stopped (Malacca Strait)", "cross_family": false }, { "answer_id": "AE-CSB-346-002", "score": 0.4280037581920624, "sibling_score": 0.4280037581920624, "answer_score": null, "sibling_qid": "KOC-2024-09-1005-Q014", "sibling_text": "4s engin thrust bearing overhaul", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Removing / overhauling the auxiliary-engine thrust bearing", "cross_family": true }, { "answer_id": "CYL-LINER-P03-004", "score": 0.40463578701019287, "sibling_score": 0.40463578701019287, "answer_score": null, "sibling_qid": "KOL-2022-04-3530-Q002", "sibling_text": "liner crack how to run engine how to isolate unit", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Cracked or leaking liner at sea, no spare — isolating the unit and reaching port", "cross_family": true } ] }, { "qid": "CHE-2026-04-0377-Q002", "text": "Zener Barrier 3. PT 100", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "CHE-2026-04-0377", "tray": "new", "candidates": [ { "answer_id": "EPC-P02-03", "score": 0.5171903371810913, "sibling_score": 0.5171903371810913, "answer_score": 0.3498684301972389, "sibling_qid": "MUM-2026-07-3813-Q002", "sibling_text": "zener barrier full explanation every component", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Where is a zener diode used on board and why — voltage regulator, AVR, clipper — and explain one application in detail.", "cross_family": false }, { "answer_id": "EPC-P02-01", "score": 0.5167402029037476, "sibling_score": 0.5167402029037476, "answer_score": 0.3855666026473045, "sibling_qid": "MUM-2026-02-1957-Q003", "sibling_text": "zener barrier full explanation every component", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a zener diode? Draw its symbol, explain its working principle, and draw and explain its characteristic curve including the zener (breakdown) voltage.", "cross_family": false }, { "answer_id": "FSF-BF073-004", "score": 0.47812986373901367, "sibling_score": 0.47812986373901367, "answer_score": null, "sibling_qid": "CHE-2026-03-0359-Q001", "sibling_text": "zener diode zener barrier working in intrinsically safe", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a magnetic fail safe?", "cross_family": false } ] }, { "qid": "CHE-2026-04-0382-Q006", "text": "Contactor maintenance carried", "family": "Electrical - Protection & Relays", "subtopic": "Protection / Relays", "tid": "CHE-2026-04-0382", "tray": "new", "candidates": [ { "answer_id": "CBR-ARC-G-002", "score": 0.584641695022583, "sibling_score": 0.584641695022583, "answer_score": null, "sibling_qid": "CHE-2026-05-0630-Q007", "sibling_text": "acb maintenance working how many contacts are there", "sibling_family": "Electrical - Switchgear & Protection", "via": "sibling", "answer_title": "ACB construction, contacts, arc chutes, auxiliaries and VCB parts", "cross_family": true }, { "answer_id": "PRL-594-001", "score": 0.5714527368545532, "sibling_score": 0.5714527368545532, "answer_score": null, "sibling_qid": "CHE-2026-05-0611-Q006", "sibling_text": "contactor power supply", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "What is the difference between a relay and a contactor?", "cross_family": false }, { "answer_id": "CB033-C-001", "score": 0.563660204410553, "sibling_score": 0.563660204410553, "answer_score": 0.36938618421554564, "sibling_qid": "CHE-2026-05-0633-Q011", "sibling_text": "maintenance on circuit breaker", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "How do you carry out maintenance and testing on an ACB / main circuit breaker?", "cross_family": false } ] }, { "qid": "CHE-2026-04-0383-Q003", "text": "Type of ship sailed", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2026-04-0383", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8457900285720825, "sibling_score": 0.8457900285720825, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8448032736778259, "sibling_score": 0.8448032736778259, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7926929593086243, "sibling_score": 0.7926929593086243, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "CHE-2026-04-0384-Q006", "text": "Contactor maintenance carried ?", "family": "Electrical - Protection & Relays", "subtopic": "Protection / Relays", "tid": "CHE-2026-04-0384", "tray": "new", "candidates": [ { "answer_id": "CBR-ARC-G-002", "score": 0.5846416354179382, "sibling_score": 0.5846416354179382, "answer_score": null, "sibling_qid": "CHE-2026-05-0630-Q007", "sibling_text": "acb maintenance working how many contacts are there", "sibling_family": "Electrical - Switchgear & Protection", "via": "sibling", "answer_title": "ACB construction, contacts, arc chutes, auxiliaries and VCB parts", "cross_family": true }, { "answer_id": "PRL-594-001", "score": 0.5714526772499084, "sibling_score": 0.5714526772499084, "answer_score": null, "sibling_qid": "CHE-2026-05-0611-Q006", "sibling_text": "contactor power supply", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "What is the difference between a relay and a contactor?", "cross_family": false }, { "answer_id": "CB033-C-001", "score": 0.563660204410553, "sibling_score": 0.563660204410553, "answer_score": 0.3693861335515976, "sibling_qid": "CHE-2026-05-0633-Q011", "sibling_text": "maintenance on circuit breaker", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "How do you carry out maintenance and testing on an ACB / main circuit breaker?", "cross_family": false } ] }, { "qid": "CHE-2026-04-0386-Q009", "text": "Pump room blower and Light difference", "family": "Cargo Ops - Tankers", "subtopic": "Pump Room Safety", "tid": "CHE-2026-04-0386", "tray": "new", "candidates": [ { "answer_id": "PR-SAFE-A-004", "score": 0.5944129824638367, "sibling_score": 0.5944129824638367, "answer_score": 0.3810061126947403, "sibling_qid": "MUM-2023-01-1377-Q001", "sibling_text": "what type of fittings in pump room lighting", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Pump-room electrical safety, lighting and portable equipment", "cross_family": false }, { "answer_id": "PR-SAFE-A-003", "score": 0.5813592672348022, "sibling_score": 0.5813592672348022, "answer_score": 0.4063863694667816, "sibling_qid": "KOC-2023-12-1314-Q009", "sibling_text": "how pump room ventillation is different", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Pump-room ventilation requirements and interlocks", "cross_family": false }, { "answer_id": "EXD-EXI-A-002", "score": 0.5674111843109131, "sibling_score": 0.5674111843109131, "answer_score": null, "sibling_qid": "KOC-2023-03-0154-Q010", "sibling_text": "pump room lighting", "sibling_family": "", "via": "sibling", "answer_title": "Ex d (flameproof / explosion-proof) — construction, shipboard applications and maintenance", "cross_family": false } ] }, { "qid": "CHE-2026-04-0498-Q005", "text": "Major jobs in engine room you did", "family": "General Marine Engineering", "subtopic": "Previous Ship / Practical Experience", "tid": "CHE-2026-04-0498", "tray": "new", "candidates": [ { "answer_id": "ERC-345-003", "score": 0.6018940210342407, "sibling_score": 0.6018940210342407, "answer_score": null, "sibling_qid": "KOL-2026-05-4244-Q001", "sibling_text": "maintenance that you have carried out in the engine room", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Pre-lift checks and maintenance", "cross_family": true }, { "answer_id": "ISM-2E-A-002", "score": 0.5710293650627136, "sibling_score": 0.5710293650627136, "answer_score": null, "sibling_qid": "KOC-2024-01-0266-Q007", "sibling_text": "ism audit as second engineer he wanted me to tell all the engine room", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "How a Second Engineer prepares for an ISM audit or survey", "cross_family": true }, { "answer_id": "LLC-SURV-P01-001", "score": 0.5673379898071289, "sibling_score": 0.5673379898071289, "answer_score": null, "sibling_qid": "KOL-2022-01-1656-Q005", "sibling_text": "load line survey prepration in engine room as second engineer", "sibling_family": "", "via": "sibling", "answer_title": "Load line survey preparation as Second Engineer: engine-room scope, machinery openings, tanks/vents, valves and overboard checks", "cross_family": false } ] }, { "qid": "CHE-2026-04-0499-Q003", "text": "Cast iron welding", "family": "Workshop & Welding", "subtopic": "Cast Iron Welding", "tid": "CHE-2026-04-0499", "tray": "review", "candidates": [ { "answer_id": "WELD-B-001", "score": 0.8306350111961365, "sibling_score": 0.8306350111961365, "answer_score": 0.548031622171402, "sibling_qid": "MUM-2026-05-3209-Q007", "sibling_text": "cast iron welding", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding & crack-repair of aluminium and cast iron, including metal stitching", "cross_family": false }, { "answer_id": "LH-ELEC-006", "score": 0.5098121583461761, "sibling_score": null, "answer_score": 0.5098121583461761, "sibling_qid": "", "sibling_text": "6 how would you approach a cast iron valve repair when the examiner probes welding and low hydrogen electrodes first response replace or fit a sound same size valve a welded cast iron repair is a stop gap not equal to new if welding cast iron not a plain mild steel low hydrogen rod the high carbon makes a hard brittle cracking weld", "sibling_family": "", "via": "answer_title", "answer_title": "6. How would you approach a cast-iron valve repair when the examiner probes welding and low-hydrogen electrodes?", "cross_family": false }, { "answer_id": "METAL-LOCK-001", "score": 0.4936324745416641, "sibling_score": null, "answer_score": 0.4936324745416641, "sibling_qid": "", "sibling_text": "what is metal locking stitching why use it materials benefits cold process zero heat applied at any stage for brittle cast iron and other castings where welding risks further cracking or a brittle heat affected zone", "sibling_family": "", "via": "answer_title", "answer_title": "What is metal locking / stitching, why use it, materials & benefits", "cross_family": false } ] }, { "qid": "CHE-2026-04-0502-Q001", "text": "Types of engine sailed", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "CHE-2026-04-0502", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.7937622666358948, "sibling_score": 0.7937622666358948, "answer_score": null, "sibling_qid": "MUM-2026-04-1007-Q002", "sibling_text": "type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.7119751572608948, "sibling_score": 0.7119751572608948, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q001", "sibling_text": "type of ship sailed and engines details", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7066248059272766, "sibling_score": 0.7066248059272766, "answer_score": null, "sibling_qid": "KOL-2025-12-2031-Q002", "sibling_text": "type of ship and engine sailed engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "CHE-2026-04-0502-Q004", "text": "Any main engine work u did? I said piston a. He asked me to explain cross head bearing survey? Both repeat", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Crosshead Bearing", "tid": "CHE-2026-04-0502", "tray": "review", "candidates": [ { "answer_id": "XHD-BRG-C-002", "score": 0.777787446975708, "sibling_score": 0.777787446975708, "answer_score": null, "sibling_qid": "KOC-2024-07-1848-Q002", "sibling_text": "cross head bearing overhaul with hung up piston he said that he wants exact steps", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "B. Crosshead bearing overhaul and removal: exact steps, tackle, withdrawing the pin", "cross_family": false }, { "answer_id": "XHD-BRG-C-001", "score": 0.7721995115280151, "sibling_score": 0.7721995115280151, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q009", "sibling_text": "overhaul of cross head bearing with piston in place", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "A. Present the crosshead bottom shell for survey, piston in place", "cross_family": false }, { "answer_id": "XHD-BRG-B-002", "score": 0.7545261979103088, "sibling_score": 0.7545261979103088, "answer_score": null, "sibling_qid": "KOL-2019-11-3287-Q004", "sibling_text": "cross head bearing overhaul checks", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Removing and lowering the crosshead bottom shell — the critical safety measure", "cross_family": false } ] }, { "qid": "CHE-2026-04-0506-Q001S3", "text": "Crosshead ovality how to check and what are the reason’s ?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crosshead & Guide Shoes", "tid": "CHE-2026-04-0506", "tray": "new", "candidates": [ { "answer_id": "CRPIN-CHK-P01-004", "score": 0.6038334369659424, "sibling_score": 0.6038334369659424, "answer_score": null, "sibling_qid": "KOL-2021-01-3371-Q002", "sibling_text": "crankpin ovality measurement x cross related to that like maximum allowable limit of ovality ill effects of ovality what to do if limits crossed how grinding carried out in oval shape which side will be grinded higher or lower diameter", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Repairing an oval or worn crankpin — grinding, undersize bearings, renewal", "cross_family": false }, { "answer_id": "CRPIN-CHK-P01-001", "score": 0.5905864238739014, "sibling_score": 0.5905864238739014, "answer_score": null, "sibling_qid": "KOL-2019-12-3300-Q001", "sibling_text": "ovality definition and cross qstns suppose m e crankpin ovality what can be done", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankpin ovality — how it is measured and at what positions", "cross_family": false }, { "answer_id": "CRPIN-CHK-P01-002", "score": 0.5714359879493713, "sibling_score": 0.5714359879493713, "answer_score": null, "sibling_qid": "KOL-2025-07-3840-Q005", "sibling_text": "what action do you take if ovality is more", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankpin ovality — causes, effects, limit and immediate action", "cross_family": false } ] }, { "qid": "CHE-2026-04-0522-Q003", "text": "⁠Main bearing lubrication difficulties faced with respect to main engine and auxiliary engine ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Bearings / Lubrication", "tid": "CHE-2026-04-0522", "tray": "new", "candidates": [ { "answer_id": "HYDRO-LUB-001", "score": 0.6323972940444946, "sibling_score": 0.6323972940444946, "answer_score": null, "sibling_qid": "KOL-2021-02-1578-Q003", "sibling_text": "what s type of lubrication which type in all bearings when me ready to run that time what lubrication in main bearing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "1. Lubrication, tribology & the types of lubrication", "cross_family": false }, { "answer_id": "BEB-A-002", "score": 0.6310191750526428, "sibling_score": 0.6310191750526428, "answer_score": null, "sibling_qid": "MUM-2026-06-3406-Q001", "sibling_text": "main engine bottom end bearing lubrication", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How the bottom end (crankpin) bearing is lubricated", "cross_family": false }, { "answer_id": "MN-BRG-C-001", "score": 0.6156590580940247, "sibling_score": 0.6156590580940247, "answer_score": null, "sibling_qid": "KOL-2024-10-3720-Q005", "sibling_text": "main engine main bearing overhaul", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Opening, removing and overhauling a main bearing", "cross_family": false } ] }, { "qid": "CHE-2026-04-0522-Q005", "text": "How is bed plate manufactured and stresses on it ?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Bedplate / A-Frame", "tid": "CHE-2026-04-0522", "tray": "new", "candidates": [ { "answer_id": "FWFB-P02-007", "score": 0.5444531440734863, "sibling_score": 0.5444531440734863, "answer_score": null, "sibling_qid": "MUM-2026-03-2952-Q007", "sibling_text": "what type of bedplate", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Transverse and longitudinal girders: arrangement and purpose", "cross_family": false }, { "answer_id": "BED-CHOCK-001", "score": 0.5078297257423401, "sibling_score": 0.5078297257423401, "answer_score": null, "sibling_qid": "MUM-2023-08-0952-Q004", "sibling_text": "how to fix bed plate on ship", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "How is the main-engine bedplate fixed to the ship's structure?", "cross_family": false }, { "answer_id": "STRSTR-298-002", "score": 0.5056830644607544, "sibling_score": 0.5056830644607544, "answer_score": null, "sibling_qid": "KOL-2022-01-1654-Q001", "sibling_text": "1 proof stress bed plate for large engine hcv and lcv plash point and fir point tbn and range", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "What is proof stress, and how is it different from yield stress or yield strength?", "cross_family": true } ] }, { "qid": "CHE-2026-05-0528-Q001", "text": "Back EMF ?", "family": "Electrical - Motors & Starters", "subtopic": "Starting Current", "tid": "CHE-2026-05-0528", "tray": "new", "candidates": [ { "answer_id": "DCMOT-A-003", "score": 0.5721994638442993, "sibling_score": 0.5721994638442993, "answer_score": 0.3310336261987686, "sibling_qid": "KOC-2024-12-1452-Q006", "sibling_text": "back emf internal no qns", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Back EMF in a DC motor", "cross_family": false }, { "answer_id": "ALT-GEN-P04-004", "score": 0.502763569355011, "sibling_score": 0.502763569355011, "answer_score": 0.2816163659095764, "sibling_qid": "KOL-2025-09-2864-Q002", "sibling_text": "what is emf", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Alternator EMF generation and EMF equation", "cross_family": true }, { "answer_id": "TBR-TT-P02-001", "score": 0.502586841583252, "sibling_score": 0.502586841583252, "answer_score": null, "sibling_qid": "MUM-2026-06-3655-Q014", "sibling_text": "what is emf", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Tie rod tightening / hydraulic tensioning procedure", "cross_family": true } ] }, { "qid": "CHE-2026-05-0529-Q001", "text": "Type of engine,spec explain ?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "CHE-2026-05-0529", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.6556877493858337, "sibling_score": 0.6556877493858337, "answer_score": null, "sibling_qid": "KOL-2026-03-2048-Q001", "sibling_text": "type of engine done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.6538757681846619, "sibling_score": 0.6538757681846619, "answer_score": 0.3806998491287231, "sibling_qid": "MUM-2026-07-3719-Q006", "sibling_text": "type of engine and it s specification", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false }, { "answer_id": "ENG-NOM-006", "score": 0.6441956162452698, "sibling_score": 0.6441956162452698, "answer_score": null, "sibling_qid": "CHE-2026-03-0181-Q001", "sibling_text": "engine specification", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Short-form asks: SMC-C, LMC, and ME vs MC quickly", "cross_family": false } ] }, { "qid": "CHE-2026-05-0531-Q006S2", "text": "What is quenching ?", "family": "NDT & Material Testing", "subtopic": "Heat Treatment", "tid": "CHE-2026-05-0531", "tray": "new", "candidates": [ { "answer_id": "HT-A-002", "score": 0.47394198179244995, "sibling_score": 0.47394198179244995, "answer_score": null, "sibling_qid": "CHE-2026-05-0548-Q009", "sibling_text": "annealing full explain how will you do cooling practically", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Annealing: process, cooling control, and the reused copper washer", "cross_family": false }, { "answer_id": "CBR-ARC-G-001", "score": 0.47147172689437866, "sibling_score": 0.47147172689437866, "answer_score": null, "sibling_qid": "KOC-2021-07-1140-Q013", "sibling_text": "how arc quenching achieved", "sibling_family": "", "via": "sibling", "answer_title": "Arc formation, arc quenching and arc-blast hazard", "cross_family": false }, { "answer_id": "HT-TCS-B-001", "score": 0.44600027799606323, "sibling_score": 0.44600027799606323, "answer_score": 0.34198950231075287, "sibling_qid": "KOL-2018-08-1400-Q002", "sibling_text": "tempering", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Tempering — purpose, classes and where it is used on board", "cross_family": false } ] }, { "qid": "CHE-2026-05-0532-Q005", "text": "Latest amendments in MSA ?", "family": "Other Conventions", "subtopic": "STCW / Manila Amendments", "tid": "CHE-2026-05-0532", "tray": "new", "candidates": [ { "answer_id": "AFS-309-002", "score": 0.5669758915901184, "sibling_score": 0.5669758915901184, "answer_score": null, "sibling_qid": "KOC-2024-01-0282-Q001", "sibling_text": "amsa amendments for afs", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "The latest AFS amendment — cybutryne control", "cross_family": false }, { "answer_id": "COT-P02-10", "score": 0.5454553365707397, "sibling_score": 0.5454553365707397, "answer_score": null, "sibling_qid": "MUM-2026-06-3653-Q004", "sibling_text": "seemp latest amendment", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "State and explain the latest statutory amendments affecting tanker inert-gas systems, including applicability and practical changes on board.", "cross_family": true }, { "answer_id": "BWM-P01-002", "score": 0.5354400873184204, "sibling_score": 0.5354400873184204, "answer_score": null, "sibling_qid": "KOC-2023-10-0228-Q009", "sibling_text": "bwms latest amendments", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "CHE-2026-05-0532-Q011", "text": "Kva kvar difference ?", "family": "Electrical - Generator & Alternator", "subtopic": "Active / Reactive / Apparent Power", "tid": "CHE-2026-05-0532", "tray": "new", "candidates": [ { "answer_id": "PWR-ARA-001", "score": 0.6129243969917297, "sibling_score": 0.6129243969917297, "answer_score": 0.3162986502051353, "sibling_qid": "KOL-2019-03-2273-Q003", "sibling_text": "diff b w kva kw and kvar", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "kW, kVA and kVAr — and the power triangle", "cross_family": true }, { "answer_id": "GEN-LSI-B-001", "score": 0.4742507040500641, "sibling_score": 0.4742507040500641, "answer_score": 0.3063615754246712, "sibling_qid": "KOL-2025-10-2887-Q002", "sibling_text": "2 ae same kw diff pf and current reason", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01. Two alternators in parallel — same kW but different current and power factor: cause and correction", "cross_family": false }, { "answer_id": "LS-IMB-A-001", "score": 0.4615633487701416, "sibling_score": 0.4615633487701416, "answer_score": null, "sibling_qid": "MUM-2026-02-1973-Q002", "sibling_text": "2 a e running in parallel kw not equal reasons", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Two paralleled generators sharing unequal load — cause and correction", "cross_family": false } ] }, { "qid": "CHE-2026-05-0535-Q001", "text": "Types of ships sailed?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2026-05-0535", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8167218565940857, "sibling_score": 0.8167218565940857, "answer_score": null, "sibling_qid": "CHE-2026-09-3938-Q001", "sibling_text": "types of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7802029848098755, "sibling_score": 0.7802029848098755, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7766692042350769, "sibling_score": 0.7766692042350769, "answer_score": 0.5094334959983825, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "CHE-2026-05-0537-Q001", "text": "Type of ship sailed?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2026-05-0537", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8457899689674377, "sibling_score": 0.8457899689674377, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8448031544685364, "sibling_score": 0.8448031544685364, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7926928997039795, "sibling_score": 0.7926928997039795, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "CHE-2026-05-0538-Q002S2", "text": "What is voltage drip? where it sense ?", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator / Generator", "tid": "CHE-2026-05-0538", "tray": "new", "candidates": [ { "answer_id": "VDIP-589-001", "score": 0.6070741415023804, "sibling_score": 0.6070741415023804, "answer_score": 0.4010856032371521, "sibling_qid": "MUM-2026-03-2070-Q001", "sibling_text": "avr details y the voltage dip is there and how it responds", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "What is voltage dip, what dip is allowed and for how long, and how is it controlled?", "cross_family": false }, { "answer_id": "VDIP-589-003", "score": 0.593029260635376, "sibling_score": 0.593029260635376, "answer_score": null, "sibling_qid": "KOL-2022-07-2584-Q004", "sibling_text": "static and error type avr voltage dip", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Which type of excitation gives the least voltage dip, and how do the types compare?", "cross_family": false }, { "answer_id": "AVR-EXC-H-003", "score": 0.5603850483894348, "sibling_score": 0.5603850483894348, "answer_score": 0.39645076394081114, "sibling_qid": "MUM-2022-07-1333-Q001", "sibling_text": "how is voltage dip corrected settings on avr", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Voltage regulation, dip, droop and transient response", "cross_family": false } ] }, { "qid": "CHE-2026-05-0539-Q001", "text": "Type of ship sailed?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2026-05-0539", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.845789909362793, "sibling_score": 0.845789909362793, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8448031544685364, "sibling_score": 0.8448031544685364, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7926928997039795, "sibling_score": 0.7926928997039795, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "CHE-2026-05-0539-Q002", "text": "What is MARPOL annex1 regulation ?", "family": "MARPOL - Annex I (Oil)", "subtopic": "IOPP", "tid": "CHE-2026-05-0539", "tray": "review", "candidates": [ { "answer_id": "ODC-004", "score": 0.720699667930603, "sibling_score": 0.720699667930603, "answer_score": null, "sibling_qid": "CHE-2026-03-0127-Q009", "sibling_text": "what marpol annex 1 regulation 14", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Regulation 14 — oil filtering equipment: 400 GT, 10,000 GT and what each must have", "cross_family": false }, { "answer_id": "MARPOL-OV-003", "score": 0.7174375653266907, "sibling_score": 0.7174375653266907, "answer_score": 0.5083783686161041, "sibling_qid": "MUM-2026-09-3916-Q003", "sibling_text": "marpol annexes all", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "General overview of MARPOL and all annexes", "cross_family": false }, { "answer_id": "IOPP-191-005", "score": 0.6922598481178284, "sibling_score": 0.6922598481178284, "answer_score": null, "sibling_qid": "CHE-2026-04-0147-Q005", "sibling_text": "marpol annex 1 documents", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "MARPOL Annex I certificates and documents for IOPP / OWS / PSC preparation", "cross_family": false } ] }, { "qid": "CHE-2026-05-0543-Q001", "text": "Types of ships?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2026-05-0543", "tray": "review", "candidates": [ { "answer_id": "LLST-AB-001", "score": 0.8295506238937378, "sibling_score": 0.8295506238937378, "answer_score": 0.5292299270629882, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.7895326614379883, "sibling_score": 0.7895326614379883, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.7877068519592285, "sibling_score": 0.7877068519592285, "answer_score": 0.5372728288173675, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "CHE-2026-05-0544-Q001", "text": "Types of ship sailed?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2026-05-0544", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8298171162605286, "sibling_score": 0.8298171162605286, "answer_score": null, "sibling_qid": "CHE-2026-09-3938-Q001", "sibling_text": "types of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7976129651069641, "sibling_score": 0.7976129651069641, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7832740545272827, "sibling_score": 0.7832740545272827, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "CHE-2026-05-0545-Q006", "text": "Ex- safeties and cross questions?", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "CHE-2026-05-0545", "tray": "new", "candidates": [ { "answer_id": "TNK-SAFE-BF26-002", "score": 0.5943065881729126, "sibling_score": 0.5943065881729126, "answer_score": null, "sibling_qid": "MUM-2023-06-0107-Q004", "sibling_text": "ig system safeties in details and cross questions", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What safeties are provided on the cargo tanks of an oil, crude or chemical tanker?", "cross_family": false }, { "answer_id": "MSB-ESB-F-001", "score": 0.5847513675689697, "sibling_score": 0.5847513675689697, "answer_score": 0.3474607780575752, "sibling_qid": "MUM-2023-07-1394-Q001", "sibling_text": "msb safeties and x questions", "sibling_family": "", "via": "sibling", "answer_title": "What safeties, protection trips, relays and alarms are provided on the MSB/ESB and how are they tested?", "cross_family": false }, { "answer_id": "MAST-PVA-002", "score": 0.5807982683181763, "sibling_score": 0.5807982683181763, "answer_score": null, "sibling_qid": "CHE-2026-08-3882-Q011", "sibling_text": "safety valve lot of cross questions", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "P/V valve vs P/V breaker — function, location and difference", "cross_family": false } ] }, { "qid": "CHE-2026-05-0546-Q004", "text": "Boiler safety valve - pressure setting and cross?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "CHE-2026-05-0546", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.7918334007263184, "sibling_score": 0.7918334007263184, "answer_score": null, "sibling_qid": "KOL-2026-01-3904-Q003", "sibling_text": "setting of boiler safety valve cross questions in high lift safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.7774145007133484, "sibling_score": 0.7774145007133484, "answer_score": null, "sibling_qid": "CHE-2026-09-3931-Q006", "sibling_text": "boiler safety valve pressure setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.7527173161506653, "sibling_score": 0.7527173161506653, "answer_score": null, "sibling_qid": "CHE-2026-09-3919-Q009", "sibling_text": "boiler safety valve setting in front of surveyor first and second safety valve pressure difference", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false } ] }, { "qid": "CHE-2026-05-0547-Q001", "text": "Various types of ship sailed?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2026-05-0547", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8250306844711304, "sibling_score": 0.8250306844711304, "answer_score": null, "sibling_qid": "CHE-2026-09-3938-Q001", "sibling_text": "types of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7809441089630127, "sibling_score": 0.7809441089630127, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7698493003845215, "sibling_score": 0.7698493003845215, "answer_score": null, "sibling_qid": "CHE-2026-03-0253-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "CHE-2026-05-0547-Q003S2", "text": "floodable limit?", "family": "Ship Construction & Stability", "subtopic": "DEFINITION", "tid": "CHE-2026-05-0547", "tray": "new", "candidates": [ { "answer_id": "DDHSC-004", "score": 0.5689414143562317, "sibling_score": 0.5689414143562317, "answer_score": null, "sibling_qid": "KOL-2019-11-3287-Q002", "sibling_text": "checks when flooding after dd", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "What checks are carried out after docking, and what are the first checks once the ship is out of dock?", "cross_family": true }, { "answer_id": "ESE-P02-001", "score": 0.559643566608429, "sibling_score": 0.559643566608429, "answer_score": null, "sibling_qid": "CHE-2026-05-0547-Q002", "sibling_text": "thresholds limit if value is within limit then can we enter", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "ESE-P02-01. Threshold limits, TLV and toxic-gas interpretation for entry", "cross_family": false }, { "answer_id": "FL-PERM-P01-003", "score": 0.5570790767669678, "sibling_score": 0.5570790767669678, "answer_score": null, "sibling_qid": "CHE-2026-02-0103-Q003", "sibling_text": "floodable length", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "What is floodable length?", "cross_family": false } ] }, { "qid": "CHE-2026-05-0547-Q007", "text": "⁠Co2 pilot door open what will will happen then what you do as 2nd engineer?", "family": "Fault Diagnosis & 2/E Actions", "subtopic": "Fault Diagnosis / 2E Action", "tid": "CHE-2026-05-0547", "tray": "new", "candidates": [ { "answer_id": "CO2-SYS-006", "score": 0.6010047197341919, "sibling_score": 0.6010047197341919, "answer_score": null, "sibling_qid": "MUM-2026-03-0828-Q001", "sibling_text": "co2 sys and what happens if we open pilot cylinder cabinate", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 bottles, manifolds, pilot cylinders and valve components", "cross_family": true }, { "answer_id": "ESE-P02-004", "score": 0.5690849423408508, "sibling_score": 0.5690849423408508, "answer_score": 0.46760858297348024, "sibling_qid": "KOL-2016-05-0002-Q006", "sibling_text": "entry to engine room after co2 discharge how will u guide being incharge", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "ESE-P02-04. Entry to the engine room after CO2 flooding", "cross_family": true }, { "answer_id": "CO2-SYS-002", "score": 0.5674246549606323, "sibling_score": 0.5674246549606323, "answer_score": null, "sibling_qid": "KOL-2020-01-0382-Q003", "sibling_text": "after co2 total flooding in engine room as a 2nd engineer how you will enter and what are the checks carried out", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 maintenance, inspection, testing and survey routines", "cross_family": true } ] }, { "qid": "CHE-2026-05-0548-Q001", "text": "Various types of ship sailed?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2026-05-0548", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8250306844711304, "sibling_score": 0.8250306844711304, "answer_score": null, "sibling_qid": "CHE-2026-09-3938-Q001", "sibling_text": "types of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7809441089630127, "sibling_score": 0.7809441089630127, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7698493003845215, "sibling_score": 0.7698493003845215, "answer_score": null, "sibling_qid": "CHE-2026-03-0253-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "CHE-2026-05-0548-Q002", "text": "Type of engine?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "CHE-2026-05-0548", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.7998000383377075, "sibling_score": 0.7998000383377075, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.7921890616416931, "sibling_score": 0.7921890616416931, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-001", "score": 0.45207613110542294, "sibling_score": null, "answer_score": 0.45207613110542294, "sibling_qid": "", "sibling_text": "1 turbocharger type main engine vs generator engine compressor is centrifugal in both cases only the turbine type differs large slow speed main engine axial flow turbine single stage constant pressure system", "sibling_family": "", "via": "answer_title", "answer_title": "1. Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "CHE-2026-05-0548-Q003", "text": "What are all the questions asked in last attempt?", "family": "__META__ (non-exam)", "subtopic": "", "tid": "CHE-2026-05-0548", "tray": "new", "candidates": [ { "answer_id": "ICCP-119-P01-001", "score": 0.4955928325653076, "sibling_score": 0.4955928325653076, "answer_score": null, "sibling_qid": "KOC-2025-10-1584-Q011", "sibling_text": "iccp and too many cross which i don t remember he used to ask cross depending upon our answer internal", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP — purpose, principle and basic working", "cross_family": true }, { "answer_id": "ISMNC-002", "score": 0.4741741716861725, "sibling_score": 0.4741741716861725, "answer_score": null, "sibling_qid": "MUM-2022-10-0063-Q008", "sibling_text": "1 what is major non confirmity and cross questions", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a major non-conformity under the ISM Code? Give the definition and name some.", "cross_family": true }, { "answer_id": "LB-DAVIT-HRU-006", "score": 0.4644384980201721, "sibling_score": 0.4644384980201721, "answer_score": null, "sibling_qid": "MUM-2022-10-0055-Q007", "sibling_text": "asked which lifeboats u worked on and asked what is onload release snd how will u test it", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "On-load and off-load lifeboat release mechanism, and how to test and check it", "cross_family": true } ] }, { "qid": "CHE-2026-05-0548-Q008S2", "text": "How will you inspect expecting full process of DPT test( explanation of each item in kit and how it works)", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE Conrod / Piston", "tid": "CHE-2026-05-0548", "tray": "new", "candidates": [ { "answer_id": "NDT-METH-P01-002", "score": 0.5408517122268677, "sibling_score": 0.5408517122268677, "answer_score": 0.47207987904548643, "sibling_qid": "CHE-2025-07-0404-Q004", "sibling_text": "explain ndt explain dpt", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Dye penetrant test (DPT): principle, procedure, penetrant/developer properties, safety", "cross_family": true }, { "answer_id": "NDT-METH-P01-001", "score": 0.5172371864318848, "sibling_score": 0.5172371864318848, "answer_score": 0.36923406571149825, "sibling_qid": "KOL-2023-08-3633-Q003", "sibling_text": "ndt test explain", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "NDT methods, NDT vs destructive testing, and onboard use", "cross_family": true }, { "answer_id": "ELEC-SURV-007", "score": 0.47685790061950684, "sibling_score": 0.47685790061950684, "answer_score": null, "sibling_qid": "KOC-2025-12-1667-Q006", "sibling_text": "what all surveys you ll carry out in dd i talked about the alternator survey msb survey insulation resistance navigation light survey but was expecting more so i just started to explain each", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Main switchboard survey & ACB testing", "cross_family": true } ] }, { "qid": "CHE-2026-05-0549-Q007", "text": "ETO did maintenance, but pump rotating in reverse direction. What you do?", "family": "Fault Diagnosis & 2/E Actions", "subtopic": "Fault Diagnosis / 2E Action", "tid": "CHE-2026-05-0549", "tray": "review", "candidates": [ { "answer_id": "PAL-620-001", "score": 0.6933068037033081, "sibling_score": 0.6933068037033081, "answer_score": null, "sibling_qid": "MUM-2026-05-3218-Q004", "sibling_text": "stby blr water circulating pump running in reverse direction reason what to do", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "How do you check and set the alignment between a pump and its motor? Horizontal centrifugal pump — where the dial gauge goes and what values apply.", "cross_family": true }, { "answer_id": "REV-PROC-004", "score": 0.6590712070465088, "sibling_score": 0.6590712070465088, "answer_score": null, "sibling_qid": "KOL-2019-10-1492-Q011", "sibling_text": "how would you know by just seeing the fuel pump that engine has reversed", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Shifting and checking the fuel pump, fuel cam and follower", "cross_family": true }, { "answer_id": "PH-SEQ-003", "score": 0.6556838750839233, "sibling_score": 0.6556838750839233, "answer_score": 0.5004137933254241, "sibling_qid": "KOL-2016-10-2077-Q003", "sibling_text": "what to do if after shore connect pump rotation is opp", "sibling_family": "", "via": "sibling", "answer_title": "If phase sequence is wrong after shore connection or generator restoration, what happens, and how do you correct reverse motor rotation?", "cross_family": false } ] }, { "qid": "CHE-2026-05-0550-Q004", "text": "Which part of the ship is vulnerable to break?", "family": "Ship Construction & Naval Architecture", "subtopic": "Damage Stability", "tid": "CHE-2026-05-0550", "tray": "new", "candidates": [ { "answer_id": "CFF-P02-001", "score": 0.5588396787643433, "sibling_score": 0.5588396787643433, "answer_score": null, "sibling_qid": "MUM-2026-09-3877-Q010", "sibling_text": "parts subjected to fatigue on board ship", "sibling_family": "Materials & Metallurgy", "via": "sibling", "answer_title": "Fatigue failure — what it is and where it occurs", "cross_family": true }, { "answer_id": "KGF-A-004", "score": 0.5565187931060791, "sibling_score": 0.5565187931060791, "answer_score": null, "sibling_qid": "KOC-2026-01-0780-Q001", "sibling_text": "mid ship section", "sibling_family": "", "via": "sibling", "answer_title": "Hull / midship cross-section: draw & identify", "cross_family": false }, { "answer_id": "BED-CHOCK-001", "score": 0.5491132736206055, "sibling_score": 0.5491132736206055, "answer_score": null, "sibling_qid": "KOL-2026-05-4197-Q004", "sibling_text": "where to check bedplate crack on ship", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "How is the main-engine bedplate fixed to the ship's structure?", "cross_family": true } ] }, { "qid": "CHE-2026-05-0553-Q004", "text": "Permanent magnet moving coil instrument?", "family": "Electrical - Generator & Alternator", "subtopic": "Residual Magnetism / Flashing", "tid": "CHE-2026-05-0553", "tray": "new", "candidates": [ { "answer_id": "GMC-583-B-001", "score": 0.6436493992805481, "sibling_score": 0.6436493992805481, "answer_score": 0.5121136695146561, "sibling_qid": "KOL-2026-04-2980-Q001", "sibling_text": "moving coil galvanometer", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Moving-coil galvanometer — construction, working, and conversion to ammeter or voltmeter", "cross_family": true }, { "answer_id": "GMCM-583-A-001", "score": 0.6292802691459656, "sibling_score": 0.6292802691459656, "answer_score": 0.5237465173006057, "sibling_qid": "KOL-2021-12-2522-Q002", "sibling_text": "moving coil meter construction ans working", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "01. The moving-coil galvanometer — construction, working, and conversion into an ammeter or voltmeter", "cross_family": true }, { "answer_id": "RES-MAG-006", "score": 0.6064931750297546, "sibling_score": 0.6064931750297546, "answer_score": null, "sibling_qid": "KOL-2022-05-2565-Q003", "sibling_text": "how to excite if no residual magnetism where is current fed", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Loss of excitation — effects and consequences, and reversing residual magnetism by the battery and brush methods", "cross_family": false } ] }, { "qid": "CHE-2026-05-0555-Q001", "text": "Type of ship. Type of vessel 6s35mc?", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "CHE-2026-05-0555", "tray": "new", "candidates": [ { "answer_id": "MCC-MEB-P01-001", "score": 0.628600537776947, "sibling_score": 0.628600537776947, "answer_score": null, "sibling_qid": "KOC-2022-07-2031-Q002", "sibling_text": "type of ship engine model 6s70mc c c means compact explain", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "MC-C (\"Compact\") engine — design and the main constructional differences from MC", "cross_family": true }, { "answer_id": "SOLAS12-BC-A-001", "score": 0.6178386211395264, "sibling_score": 0.6178386211395264, "answer_score": null, "sibling_qid": "MUM-2026-06-3382-Q001", "sibling_text": "type of ship sailed bulk carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "SOLAS definition and scope of a bulk carrier", "cross_family": false }, { "answer_id": "COT-01", "score": 0.6144542098045349, "sibling_score": 0.6144542098045349, "answer_score": null, "sibling_qid": "KOC-2026-04-0892-Q003", "sibling_text": "type of ship sailed tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Oil-tanker types, definitions and cargo capability", "cross_family": false } ] }, { "qid": "CHE-2026-05-0555-Q006", "text": "Meb elfi valve working?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "ELFI", "tid": "CHE-2026-05-0555", "tray": "new", "candidates": [ { "answer_id": "FIVA-220-001", "score": 0.588897705078125, "sibling_score": 0.588897705078125, "answer_score": 0.36876755207777023, "sibling_qid": "CHE-2026-09-3916-Q002", "sibling_text": "fiva valve working", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "FIVA valve — construction, function and basic operation", "cross_family": false }, { "answer_id": "FIVA-220-002", "score": 0.5412566661834717, "sibling_score": 0.5412566661834717, "answer_score": null, "sibling_qid": "KOL-2024-03-1773-Q002", "sibling_text": "type of engine worked on working of fiva valve in me c engine fail safe arrangement of fiva valve in me c engine type of action given by fiva valve proportional for fuel and on off for exhaust valve type of controller controlling the fiva valve electro hydraulic solenoid valve and working of that", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "FIVA control of fuel injection — timing, quantity and actuation", "cross_family": false }, { "answer_id": "MEB-MEC-P03-001", "score": 0.5150413513183594, "sibling_score": 0.5150413513183594, "answer_score": null, "sibling_qid": "KOL-2023-02-4019-Q009", "sibling_text": "fiva elfi valve does me b has ccu", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "ME-B vs ME-C — the core difference", "cross_family": true } ] }, { "qid": "CHE-2026-05-0556-Q008", "text": "how nox formed?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "NOx / SOx / EEDI / CII", "tid": "CHE-2026-05-0556", "tray": "new", "candidates": [ { "answer_id": "A6-NSEC-003", "score": 0.5970888733863831, "sibling_score": 0.5970888733863831, "answer_score": null, "sibling_qid": "CHE-2025-09-0215-Q007", "sibling_text": "how nox will form", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "NOx — formation, limits & reduction (SCR / EGR)", "cross_family": false }, { "answer_id": "AIRP-188-007", "score": 0.4593287706375122, "sibling_score": 0.4593287706375122, "answer_score": null, "sibling_qid": "CHE-2026-04-0144-Q003", "sibling_text": "nox and sox", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "NOx and SOx control under Annex VI (Reg 13 & 14) — limits and abatement", "cross_family": false }, { "answer_id": "AV6-P01-04", "score": 0.459005206823349, "sibling_score": 0.459005206823349, "answer_score": 0.23511719703674316, "sibling_qid": "CHE-2026-05-0609-Q001", "sibling_text": "sox nox", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Compare how SOx and NOx are formed on a marine engine and the principal routes to reduce each.", "cross_family": false } ] }, { "qid": "CHE-2026-05-0556-Q010", "text": "miller cycle explain? context-he told your giving some response that's why giving paper.", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Miller / Otto / Diesel Cycle", "tid": "CHE-2026-05-0556", "tray": "new", "candidates": [ { "answer_id": "CPP-TCV-04", "score": 0.5916205048561096, "sibling_score": 0.5916205048561096, "answer_score": 0.2351994499564171, "sibling_qid": "KOL-2021-05-1589-Q001", "sibling_text": "miller cycle wants to hear nox", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Miller cycle for NOx reduction and power recovery", "cross_family": false }, { "answer_id": "CPP-TCV-02", "score": 0.5770216584205627, "sibling_score": 0.5770216584205627, "answer_score": 0.2588569551706314, "sibling_qid": "MUM-2023-05-2728-Q003", "sibling_text": "what is millers cycle explain millers cycle", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Miller cycle — principle and PV effect", "cross_family": false }, { "answer_id": "CPP-TCV-03", "score": 0.5131802558898926, "sibling_score": 0.5131802558898926, "answer_score": null, "sibling_qid": "MUM-2025-06-0971-Q007", "sibling_text": "explain miller cycle in detail how is it being made applicable for 2s", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Applying Miller timing to 4-stroke and 2-stroke engines", "cross_family": false } ] }, { "qid": "CHE-2026-05-0557-Q001", "text": "wall sided ship?", "family": "Ship Construction", "subtopic": "", "tid": "CHE-2026-05-0557", "tray": "review", "candidates": [ { "answer_id": "STAB-GZ-P04-004", "score": 0.7841386198997498, "sibling_score": 0.7841386198997498, "answer_score": null, "sibling_qid": "CHE-2026-05-0565-Q003", "sibling_text": "wall sided ship", "sibling_family": "Ship Construction", "via": "sibling", "answer_title": "Beam, freeboard, GM and the wall-sided curve", "cross_family": false }, { "answer_id": "SHELL-PLT-B-001", "score": 0.5374677181243896, "sibling_score": 0.5374677181243896, "answer_score": null, "sibling_qid": "CHE-2026-05-0586-Q008", "sibling_text": "gunwale", "sibling_family": "Ship Construction", "via": "sibling", "answer_title": "Sheer strake — location, why strengthened, deck-edge / gunwale connection", "cross_family": false }, { "answer_id": "PPS-230-006", "score": 0.5305497050285339, "sibling_score": 0.5305497050285339, "answer_score": null, "sibling_qid": "KOC-2024-02-0306-Q001", "sibling_text": "forward construction of ship and panting stringer", "sibling_family": "", "via": "sibling", "answer_title": "Fore-end / fore-peak structure: draw and describe", "cross_family": false } ] }, { "qid": "CHE-2026-05-0557-Q003", "text": "types of stern,which stern is more effective with respect to efficiency?", "family": "Ship Construction", "subtopic": "", "tid": "CHE-2026-05-0557", "tray": "new", "candidates": [ { "answer_id": "DUS-P5-03", "score": 0.505827784538269, "sibling_score": 0.505827784538269, "answer_score": null, "sibling_qid": "CHE-2026-05-0557-Q013", "sibling_text": "why transom stern is more preferred", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Stern frame construction, cross-section and rudder-axis sketch", "cross_family": true }, { "answer_id": "RES-PROP-P03-002", "score": 0.4338722825050354, "sibling_score": 0.4338722825050354, "answer_score": null, "sibling_qid": "KOL-2020-01-3977-Q003", "sibling_text": "hull efficiency", "sibling_family": "", "via": "sibling", "answer_title": "2. Propulsive coefficients: QPC, hull/propeller/relative-rotative efficiency, wake, slip and propeller curves", "cross_family": false }, { "answer_id": "SPR-STERN-001", "score": 0.4250960350036621, "sibling_score": 0.4250960350036621, "answer_score": null, "sibling_qid": "CHE-2026-09-3918-Q004", "sibling_text": "propeller efficiency", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Propeller design factors, efficiency, handedness & material", "cross_family": true } ] }, { "qid": "CHE-2026-05-0557-Q009", "text": "fixed CO2 extinguisher machinery space calculation?", "family": "SOLAS - Fire Safety", "subtopic": "CO2 System", "tid": "CHE-2026-05-0557", "tray": "review", "candidates": [ { "answer_id": "CO2-CALC-P01-002", "score": 0.6852297186851501, "sibling_score": 0.6852297186851501, "answer_score": 0.5408051192760467, "sibling_qid": "MUM-2026-06-3480-Q007", "sibling_text": "co2 volume calculation for fixed fire fighting", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "How is the required CO2 quantity and number of bottles calculated for an engine-room total-flooding system?", "cross_family": false }, { "answer_id": "CO2-CALC-P01-005", "score": 0.6690643429756165, "sibling_score": 0.6690643429756165, "answer_score": null, "sibling_qid": "KOC-2021-06-0004-Q003", "sibling_text": "no of co2 bottle requiered for engine room 8000 m3 excluding casing he dnt want formula he want to knw no of bottle required spot calculation w o calculator", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "How is engine-room casing volume treated — the separate calculation with and without casing?", "cross_family": false }, { "answer_id": "CO2-SYS-002", "score": 0.6476684212684631, "sibling_score": 0.6476684212684631, "answer_score": null, "sibling_qid": "KOC-2025-11-0704-Q004", "sibling_text": "co2 fixed fire fighting maintenance", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 maintenance, inspection, testing and survey routines", "cross_family": false } ] }, { "qid": "CHE-2026-05-0557-Q016", "text": "H&M insurance?", "family": "Other Conventions", "subtopic": "CLC / Civil Liability", "tid": "CHE-2026-05-0557", "tray": "new", "candidates": [ { "answer_id": "CLC-CIV-B-004", "score": 0.48863086104393005, "sibling_score": 0.48863086104393005, "answer_score": 0.3704409316182136, "sibling_qid": "KOL-2019-11-0355-Q004", "sibling_text": "marine insurance", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Marine insurance and the P&I club: hull cover vs liability cover", "cross_family": false }, { "answer_id": "CLC-CIV-B-003", "score": 0.45893919467926025, "sibling_score": 0.45893919467926025, "answer_score": null, "sibling_qid": "MUM-2024-04-0171-Q006", "sibling_text": "for what llmc cover claims", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "LLMC: purpose, scope and limitation of maritime claims", "cross_family": false }, { "answer_id": "HKC-IHM-B-001", "score": 0.45765420794487, "sibling_score": 0.45765420794487, "answer_score": 0.3013815119862556, "sibling_qid": "KOC-2024-03-0317-Q007", "sibling_text": "what is ihm", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is the IHM — its parts, categories and contents?", "cross_family": false } ] }, { "qid": "CHE-2026-05-0557-Q017", "text": "P&I insurance?", "family": "Other Conventions", "subtopic": "CLC / Civil Liability", "tid": "CHE-2026-05-0557", "tray": "review", "candidates": [ { "answer_id": "CLC-CIV-B-004", "score": 0.6688677668571472, "sibling_score": 0.6688677668571472, "answer_score": 0.44960190653800963, "sibling_qid": "KOL-2018-09-0219-Q005", "sibling_text": "pi club details insurance claims general average and plenty questions", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Marine insurance and the P&I club: hull cover vs liability cover", "cross_family": false }, { "answer_id": "PI-211-002", "score": 0.523443341255188, "sibling_score": 0.523443341255188, "answer_score": 0.313372528553009, "sibling_qid": "CHE-2026-04-0361-Q001", "sibling_text": "pi insulation test", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "How the PI test is carried out — equipment, procedure, leakage-current behaviour", "cross_family": true }, { "answer_id": "PA-MAN-004", "score": 0.41014188528060913, "sibling_score": null, "answer_score": 0.41014188528060913, "sibling_qid": "", "sibling_text": "distinguish the p a manual from p i declared interpretation of a garbled cross term p a manual procedures arrangements manual marpol annex ii reg 14 operational statutory ship specific p i protection indemnity the shipowner s mutual liability insurance a p i club", "sibling_family": "", "via": "answer_title", "answer_title": "Distinguish the P&A Manual from P&I (declared interpretation of a garbled cross-term)", "cross_family": false } ] }, { "qid": "CHE-2026-05-0558-Q007", "text": "What is FQS ? X questions", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Effective Stroke", "tid": "CHE-2026-05-0558", "tray": "new", "candidates": [ { "answer_id": "VIT-MECH-B-002", "score": 0.5237975716590881, "sibling_score": 0.5237975716590881, "answer_score": null, "sibling_qid": "CHE-2026-03-0254-Q002", "sibling_text": "vit explain fqs settings", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How VIT is adjusted and set — timing and fuel-quality (FQS) interactions", "cross_family": false }, { "answer_id": "FIVA-220-003", "score": 0.51584392786026, "sibling_score": 0.51584392786026, "answer_score": null, "sibling_qid": "MUM-2026-05-3217-Q015", "sibling_text": "many cross question on fiva", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "FIVA control signal, controller type, voice-coil drive and fail-safe behaviour", "cross_family": false }, { "answer_id": "QCV-001", "score": 0.4898548126220703, "sibling_score": 0.4898548126220703, "answer_score": null, "sibling_qid": "KOL-2022-09-3567-Q006", "sibling_text": "fqs system", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Quick closing valve — construction and what it is", "cross_family": true } ] }, { "qid": "CHE-2026-05-0559-Q011", "text": "Ig o2calibration? Deciding-", "family": "Tanker - Inert Gas System", "subtopic": "", "tid": "CHE-2026-05-0559", "tray": "new", "candidates": [ { "answer_id": "COT-P02-08", "score": 0.5580574870109558, "sibling_score": 0.5580574870109558, "answer_score": 0.4101332977414131, "sibling_qid": "MUM-2026-01-2907-Q007", "sibling_text": "o2 calibration testing procedure", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Explain the working principle, sampling arrangement, calibration and failure response of the inert-gas oxygen analyser.", "cross_family": true }, { "answer_id": "OMD-003", "score": 0.525721549987793, "sibling_score": 0.525721549987793, "answer_score": null, "sibling_qid": "KOL-2026-03-3937-Q001", "sibling_text": "omd calibration", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Explain the OMD working principle, its types and their differences, the electrical side, and zero setting and calibration.", "cross_family": true }, { "answer_id": "IGAT-583-003", "score": 0.5231195092201233, "sibling_score": 0.5231195092201233, "answer_score": null, "sibling_qid": "KOC-2023-03-0154-Q014", "sibling_text": "ig alarms o2 content of ig in tank", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What are the set values for the IG system alarms and trips — IG line high, low and low-low pressure, oxygen content, PV valve and breaker pressures?", "cross_family": true } ] }, { "qid": "CHE-2026-05-0559-Q012", "text": "Fo high pre pipe test", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "", "tid": "CHE-2026-05-0559", "tray": "new", "candidates": [ { "answer_id": "FLGLS-001", "score": 0.5430228114128113, "sibling_score": 0.5430228114128113, "answer_score": null, "sibling_qid": "MUM-2025-11-2479-Q003", "sibling_text": "fuel pp high pr pipe removed now what all checks", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "HP fuel pipe — construction, fuel/gas-line safeties and post-removal checks", "cross_family": false }, { "answer_id": "FLGLS-002", "score": 0.5052282214164734, "sibling_score": 0.5052282214164734, "answer_score": null, "sibling_qid": "KOL-2026-03-3931-Q004", "sibling_text": "high pressure pipe purging how will you know all air purged", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Purging a HP fuel line / injector and confirming all air is removed", "cross_family": false }, { "answer_id": "FLGLS-003", "score": 0.4790826737880707, "sibling_score": 0.4790826737880707, "answer_score": null, "sibling_qid": "KOC-2026-05-0050-Q004", "sibling_text": "hp pipe leaking what all action before long voyage", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "HP fuel pipe leakage — actions, no-spare, milling and long-voyage readiness", "cross_family": false } ] }, { "qid": "CHE-2026-05-0560-Q001", "text": "Type of ships?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2026-05-0560", "tray": "review", "candidates": [ { "answer_id": "LLST-AB-001", "score": 0.8290883302688599, "sibling_score": 0.8290883302688599, "answer_score": 0.5272812902927398, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.795021653175354, "sibling_score": 0.795021653175354, "answer_score": 0.5295174956321717, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.7901499271392822, "sibling_score": 0.7901499271392822, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false } ] }, { "qid": "CHE-2026-05-0560-Q002", "text": "Freeport definition ?", "family": "Ship Construction", "subtopic": "", "tid": "CHE-2026-05-0560", "tray": "new", "candidates": [ { "answer_id": "BULWARK-003", "score": 0.5459507703781128, "sibling_score": 0.5459507703781128, "answer_score": 0.3678208962082863, "sibling_qid": "CHE-2025-08-0031-Q008", "sibling_text": "bulwark freeing port types", "sibling_family": "", "via": "sibling", "answer_title": "What are freeing ports in a bulwark, and what is their purpose?", "cross_family": false }, { "answer_id": "LLC-P05-001", "score": 0.4853973388671875, "sibling_score": 0.4853973388671875, "answer_score": 0.3380812853574753, "sibling_qid": "CHE-2026-05-0560-Q006", "sibling_text": "freeboard", "sibling_family": "Ship Construction", "via": "sibling", "answer_title": "Freeboard, deck line, Plimsoll mark, assignment and scantling draft", "cross_family": false }, { "answer_id": "FIRE-P05-06", "score": 0.4646013379096985, "sibling_score": 0.4646013379096985, "answer_score": null, "sibling_qid": "KOL-2026-02-1185-Q001", "sibling_text": "requirement for safe reaching port in fss", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Safe Return to Port — SOLAS II-2 Reg 21 threshold and Reg 22 3-hour case", "cross_family": true } ] }, { "qid": "CHE-2026-05-0560-Q013", "text": "⁠checks you will take in ME during overhaul?", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "CHE-2026-05-0560", "tray": "new", "candidates": [ { "answer_id": "CYL-LINER-P03-007", "score": 0.614578366279602, "sibling_score": 0.614578366279602, "answer_score": null, "sibling_qid": "KOL-2021-03-1582-Q003", "sibling_text": "checks in liner during overhaul", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Cylinder liner checks at overhaul, decarb and under-piston inspection", "cross_family": false }, { "answer_id": "CYL-LINER-P04-002", "score": 0.5415740609169006, "sibling_score": 0.5415740609169006, "answer_score": null, "sibling_qid": "MUM-2026-06-3450-Q005", "sibling_text": "you are doing maintenance of me how will you decide that liner need replacement", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Judging, measuring, removing & discarding a cylinder liner", "cross_family": false }, { "answer_id": "DCB-OVH-002", "score": 0.5316709280014038, "sibling_score": 0.5316709280014038, "answer_score": null, "sibling_qid": "KOC-2024-08-1855-Q001", "sibling_text": "major overhaul during ur time onboard", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Preparing for a complete unit overhaul or unit survey", "cross_family": true } ] }, { "qid": "CHE-2026-05-0560-Q017", "text": "⁠how to remove main bearing of ME?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Main Bearing", "tid": "CHE-2026-05-0560", "tray": "review", "candidates": [ { "answer_id": "MAIN-BRG-B-001", "score": 0.7711628079414368, "sibling_score": 0.7711628079414368, "answer_score": 0.48703749775886535, "sibling_qid": "CHE-2025-08-0410-Q006", "sibling_text": "how to remove main bearing of me", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you open up / remove / overhaul a main-engine main bearing?", "cross_family": false }, { "answer_id": "MN-BRG-C-001", "score": 0.7157377600669861, "sibling_score": 0.7157377600669861, "answer_score": 0.5180700778961181, "sibling_qid": "MUM-2022-10-1027-Q013", "sibling_text": "main bearing removal procedure", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Opening, removing and overhauling a main bearing", "cross_family": false }, { "answer_id": "AE-MB-003", "score": 0.535110592842102, "sibling_score": null, "answer_score": 0.535110592842102, "sibling_qid": "", "sibling_text": "removing the top shell and the main bearing locking arrangement conventional the top shell is carried in the keep remove it with the keep back off the horizontal side jacking bolts first then slacken the main bearing studs in stages hydraulic to the maker s figure where fitted", "sibling_family": "", "via": "answer_title", "answer_title": "Removing the top shell and the main-bearing locking arrangement", "cross_family": false } ] }, { "qid": "CHE-2026-05-0560-Q019", "text": "Type of ships?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2026-05-0560", "tray": "review", "candidates": [ { "answer_id": "LLST-AB-001", "score": 0.8290883302688599, "sibling_score": 0.8290883302688599, "answer_score": 0.5272812902927398, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.795021653175354, "sibling_score": 0.795021653175354, "answer_score": 0.5295174956321717, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.7901499271392822, "sibling_score": 0.7901499271392822, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false } ] }, { "qid": "CHE-2026-05-0560-Q020", "text": "⁠which company ?", "family": "Status & Introduction", "subtopic": "Company Introduction", "tid": "CHE-2026-05-0560", "tray": "new", "candidates": [ { "answer_id": "LLST-AB-002", "score": 0.6104773879051208, "sibling_score": 0.6104773879051208, "answer_score": null, "sibling_qid": "KOC-2026-03-0850-Q001", "sibling_text": "type of ship company", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false }, { "answer_id": "ETP-344-P03-001", "score": 0.5498513579368591, "sibling_score": 0.5498513579368591, "answer_score": null, "sibling_qid": "KOC-2026-05-0046-Q002", "sibling_text": "company and type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "EICU-MAN-P02-002", "score": 0.5453125238418579, "sibling_score": 0.5453125238418579, "answer_score": null, "sibling_qid": "KOC-2025-10-2078-Q002", "sibling_text": "mithsubshi uec manuering", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Manoeuvring on RT-flex, Sulzer RTA and Mitsubishi UEC", "cross_family": true } ] }, { "qid": "CHE-2026-05-0560-Q021", "text": "⁠last rank sailed and when ?", "family": "__META__ (non-exam)", "subtopic": "", "tid": "CHE-2026-05-0560", "tray": "new", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.487326443195343, "sibling_score": 0.487326443195343, "answer_score": null, "sibling_qid": "CHE-2026-02-0478-Q004", "sibling_text": "this type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": true }, { "answer_id": "ANCH-CHN-A-001", "score": 0.48569416999816895, "sibling_score": 0.48569416999816895, "answer_score": null, "sibling_qid": "MUM-2025-03-2273-Q015", "sibling_text": "type of anchor last ship", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Types of anchor & holding characteristics", "cross_family": true }, { "answer_id": "ENG-NOM-005", "score": 0.48471584916114807, "sibling_score": 0.48471584916114807, "answer_score": null, "sibling_qid": "MUM-2026-05-3164-Q001", "sibling_text": "last ship sailed main engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "CHE-2026-05-0560-Q022", "text": "⁠5 titles of MLC?", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "CHE-2026-05-0560", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.5657561421394348, "sibling_score": 0.5657561421394348, "answer_score": 0.2720335081219673, "sibling_qid": "KOC-2026-05-2135-Q011", "sibling_text": "mlc titles explain title 1 explain dmlc part 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "MLC-WRH-B-006", "score": 0.4768742322921753, "sibling_score": 0.4768742322921753, "answer_score": 0.23982134461402893, "sibling_qid": "MUM-2026-06-3645-Q001", "sibling_text": "certificates of mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false }, { "answer_id": "ISMNC-002", "score": 0.431226521730423, "sibling_score": 0.431226521730423, "answer_score": null, "sibling_qid": "MUM-2026-01-0685-Q005", "sibling_text": "mlc mnc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a major non-conformity under the ISM Code? Give the definition and name some.", "cross_family": true } ] }, { "qid": "CHE-2026-05-0561-Q004", "text": "Oil hole have linear curve why?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft / Crankpin", "tid": "CHE-2026-05-0561", "tray": "new", "candidates": [ { "answer_id": "CYL-LINER-P03-002", "score": 0.5186882019042969, "sibling_score": 0.5186882019042969, "answer_score": null, "sibling_qid": "KOL-2018-05-1373-Q013", "sibling_text": "linear leaking how will u find", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Detecting and confirming a cracked or leaking liner — and pinning the unit", "cross_family": true }, { "answer_id": "CYL-LINER-P04-004", "score": 0.46788841485977173, "sibling_score": 0.46788841485977173, "answer_score": 0.34661666601896285, "sibling_qid": "MUM-2025-11-2490-Q001", "sibling_text": "polar graph curve in liner no idea", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Polar wear graph / curve", "cross_family": true }, { "answer_id": "HYD-BONJ-001", "score": 0.4654891788959503, "sibling_score": 0.4654891788959503, "answer_score": null, "sibling_qid": "KOC-2022-10-0102-Q004", "sibling_text": "hydrostatic curve valya pidi ilarnu", "sibling_family": "", "via": "sibling", "answer_title": "Hydrostatic curves — what they give and how they are used", "cross_family": false } ] }, { "qid": "CHE-2026-05-0562-Q003S2", "text": "Explain Bilging ?", "family": "Ship Construction & Stability", "subtopic": "Static / Dynamic Stability/damage stability", "tid": "CHE-2026-05-0562", "tray": "new", "candidates": [ { "answer_id": "BK-004", "score": 0.4940457344055176, "sibling_score": 0.4940457344055176, "answer_score": null, "sibling_qid": "CHE-2026-04-0169-Q008", "sibling_text": "what is bilge keel", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "How is a bilge keel attached to the hull, and how is hull cracking or rupture controlled?", "cross_family": false }, { "answer_id": "BK-001", "score": 0.4512036144733429, "sibling_score": 0.4512036144733429, "answer_score": 0.34063829481601715, "sibling_qid": "KOC-2026-05-2128-Q003", "sibling_text": "bilge keel draw and explain", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "What is a bilge keel and what is its purpose?", "cross_family": false }, { "answer_id": "BK-002", "score": 0.42850491404533386, "sibling_score": 0.42850491404533386, "answer_score": 0.3523609697818756, "sibling_qid": "KOC-2023-05-0186-Q003", "sibling_text": "bilge keel how reduce rolling", "sibling_family": "", "via": "sibling", "answer_title": "How does a bilge keel reduce rolling, and how does it relate to roll period and radius of gyration?", "cross_family": false } ] }, { "qid": "CHE-2026-05-0562-Q008", "text": "Types of stern?", "family": "Drydock & Underwater Surveys", "subtopic": "Stern Tube / Tail Shaft", "tid": "CHE-2026-05-0562", "tray": "new", "candidates": [ { "answer_id": "STS-P02-003", "score": 0.6016585826873779, "sibling_score": 0.6016585826873779, "answer_score": 0.38342959731817244, "sibling_qid": "MUM-2026-06-3601-Q004", "sibling_text": "types of stern tube", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "STS-P02-03 - Stern tube arrangement, fitting in hull and shaft support", "cross_family": false }, { "answer_id": "DUS-P5-03", "score": 0.5425851941108704, "sibling_score": 0.5425851941108704, "answer_score": 0.407611271739006, "sibling_qid": "CHE-2026-02-0105-Q005", "sibling_text": "transom stern explain", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Stern frame construction, cross-section and rudder-axis sketch", "cross_family": true }, { "answer_id": "STS-P02-004", "score": 0.5366822481155396, "sibling_score": 0.5366822481155396, "answer_score": null, "sibling_qid": "MUM-2023-06-2735-Q004", "sibling_text": "type of lagging used in stern tube", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "STS-P02-04 - Tail shaft design, bearing materials and bending support", "cross_family": false } ] }, { "qid": "CHE-2026-05-0562-Q014", "text": "Ows failure under what code u will enter and wat are all the things u do?", "family": "MARPOL - Annex I (Oil)", "subtopic": "", "tid": "CHE-2026-05-0562", "tray": "new", "candidates": [ { "answer_id": "OWS-15PPM-005", "score": 0.5633544325828552, "sibling_score": 0.5633544325828552, "answer_score": null, "sibling_qid": "KOL-2017-08-0110-Q006", "sibling_text": "6 ows failure what your action as second engineer", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "OWS-15PPM-001", "score": 0.5150455236434937, "sibling_score": 0.5150455236434937, "answer_score": null, "sibling_qid": "KOL-2025-07-0998-Q004", "sibling_text": "ows is not working infront of psc as 2nd eng what will you do", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "OWS-ORB-002", "score": 0.49774178862571716, "sibling_score": 0.49774178862571716, "answer_score": null, "sibling_qid": "MUM-2025-05-2800-Q006", "sibling_text": "iopp survey ows testing at port ows not working and reporting and 1 more i did not remeber", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "2. OWS / 15 ppm alarm not working — reporting and control actions as 2/E", "cross_family": false } ] }, { "qid": "CHE-2026-05-0562-Q017", "text": "Lumber hole in db tank?", "family": "Cargo Ops - Tankers", "subtopic": "Cargo Plant / System", "tid": "CHE-2026-05-0562", "tray": "new", "candidates": [ { "answer_id": "FLR-WFB-P01-001", "score": 0.46843472123146057, "sibling_score": 0.46843472123146057, "answer_score": null, "sibling_qid": "KOL-2025-03-0920-Q003", "sibling_text": "db tank construction what is floor", "sibling_family": "", "via": "sibling", "answer_title": "Floors — what they are, the types, and where they are fitted", "cross_family": false }, { "answer_id": "DBTB-A-002", "score": 0.4640970826148987, "sibling_score": 0.4640970826148987, "answer_score": null, "sibling_qid": "MUM-2022-10-0059-Q007", "sibling_text": "db tanks drawbacks", "sibling_family": "", "via": "sibling", "answer_title": "Double-bottom tanks: purpose, advantages, disadvantages and stability effect", "cross_family": false }, { "answer_id": "BOT-PLUG-001", "score": 0.4588380455970764, "sibling_score": 0.4588380455970764, "answer_score": 0.3053759589791298, "sibling_qid": "MUM-2026-06-3459-Q005", "sibling_text": "db tank drain plug leak test", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "How do you check the watertight integrity of a DB tank bottom plug in dry dock?", "cross_family": true } ] }, { "qid": "CHE-2026-05-0562-Q018", "text": "Step up motor?", "family": "Electrical - Motors & Starters", "subtopic": "MOTOR", "tid": "CHE-2026-05-0562", "tray": "new", "candidates": [ { "answer_id": "DCMOT-CMU-B-004", "score": 0.5543316006660461, "sibling_score": 0.5543316006660461, "answer_score": null, "sibling_qid": "CHE-2025-07-0266-Q002", "sibling_text": "any dc motor in ship i said generator governor stepper motor he asked how operate", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "The DC motor on the AE governor (the actuator)", "cross_family": false }, { "answer_id": "DCMOT-CMU-B-001", "score": 0.552060067653656, "sibling_score": 0.552060067653656, "answer_score": null, "sibling_qid": "KOC-2023-07-1267-Q008", "sibling_text": "dc motor speed motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "DC motor speed control — the three methods", "cross_family": false }, { "answer_id": "TG-MOTOR-001", "score": 0.5510230660438538, "sibling_score": 0.5510230660438538, "answer_score": null, "sibling_qid": "MUM-2026-07-3697-Q001", "sibling_text": "turning gear motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What type of motor is used for the turning gear, and what type of rotor does it have?", "cross_family": false } ] }, { "qid": "CHE-2026-05-0562-Q021", "text": "Frequency and torque relationship?", "family": "Electrical - Generator & Alternator", "subtopic": "Frequency", "tid": "CHE-2026-05-0562", "tray": "new", "candidates": [ { "answer_id": "SHAFT-GEN-002", "score": 0.6260915398597717, "sibling_score": 0.6260915398597717, "answer_score": null, "sibling_qid": "KOL-2025-09-2854-Q004", "sibling_text": "shaft generator main engine rpm is not same but frequency remains constant how and how it works", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Holding constant voltage and frequency when main-engine RPM varies", "cross_family": false }, { "answer_id": "IM-TRQ-P02-002", "score": 0.6202462911605835, "sibling_score": 0.6202462911605835, "answer_score": 0.48772095441818236, "sibling_qid": "MUM-2024-12-1480-Q002", "sibling_text": "torque speed diagram", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "The torque-speed / torque-slip characteristic curve", "cross_family": true }, { "answer_id": "IM-TRQ-P02-001", "score": 0.5949499011039734, "sibling_score": 0.5949499011039734, "answer_score": 0.520731708407402, "sibling_qid": "KOC-2025-11-1638-Q007", "sibling_text": "factors affecting torque in motors", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Factors affecting torque; conditions for maximum torque", "cross_family": true } ] }, { "qid": "CHE-2026-05-0562-Q027", "text": "Explain SEEMP?PART 1,2,?Deciding question.", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "SEEMP I/II/III", "tid": "CHE-2026-05-0562", "tray": "new", "candidates": [ { "answer_id": "AV6-P05-01", "score": 0.5403491854667664, "sibling_score": 0.5403491854667664, "answer_score": null, "sibling_qid": "KOL-2025-09-1056-Q003", "sibling_text": "explain seemp part 2 what do you understand by it", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP Part II — IMO DCS plan and contents", "cross_family": false }, { "answer_id": "A6-NSEC-005", "score": 0.48978808522224426, "sibling_score": 0.48978808522224426, "answer_score": null, "sibling_qid": "CHE-2026-05-0536-Q004", "sibling_text": "explain seemp part 2 3", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP — Part I, II & III", "cross_family": false }, { "answer_id": "EEDI-C-003", "score": 0.24292970448732376, "sibling_score": null, "answer_score": 0.24292970448732376, "sibling_qid": "", "sibling_text": "how eedi sits against eexi cii and seemp", "sibling_family": "", "via": "answer_title", "answer_title": "How EEDI sits against EEXI, CII and SEEMP", "cross_family": false } ] }, { "qid": "CHE-2026-05-0562-Q028", "text": "What is CII ?units ?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "NOx Limits / Tier", "tid": "CHE-2026-05-0562", "tray": "review", "candidates": [ { "answer_id": "CII-CALC-P03-001", "score": 0.6503568291664124, "sibling_score": 0.6503568291664124, "answer_score": 0.2925472900271416, "sibling_qid": "MUM-2025-11-0588-Q003", "sibling_text": "unit of cii", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Calculating attained & required CII — formula, unit, reduction factor, measurements", "cross_family": false }, { "answer_id": "FQCC-583-A-001", "score": 0.5226316452026367, "sibling_score": 0.5226316452026367, "answer_score": null, "sibling_qid": "KOL-2025-09-1054-Q005", "sibling_text": "unit of ccai", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "CCAI — what it is, how it is calculated, and what it is really for", "cross_family": true }, { "answer_id": "CII-P01-001", "score": 0.5063151717185974, "sibling_score": 0.5063151717185974, "answer_score": 0.2675460249185562, "sibling_qid": "KOL-2025-07-0978-Q009", "sibling_text": "what is cii", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is CII and what is its purpose?", "cross_family": false } ] }, { "qid": "CHE-2026-05-0562-Q028S2", "text": "Attained EEDI EEXI with regulation number,?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "NOx Limits / Tier", "tid": "CHE-2026-05-0562", "tray": "new", "candidates": [ { "answer_id": "EEDI-A-002", "score": 0.5526767373085022, "sibling_score": 0.5526767373085022, "answer_score": null, "sibling_qid": "MUM-2022-12-0074-Q009", "sibling_text": "what is eedi eexi ieec details", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "The EEDI Technical File and the IEEC documentation", "cross_family": false }, { "answer_id": "EECS-017", "score": 0.5476973056793213, "sibling_score": 0.5476973056793213, "answer_score": 0.3813532620668411, "sibling_qid": "KOL-2025-09-1080-Q007", "sibling_text": "eedi eeoi attained required eu mrv", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "17. Attained and required EEDI, EEOI, and EU MRV", "cross_family": false }, { "answer_id": "EEDI-B-002", "score": 0.5344807505607605, "sibling_score": 0.5344807505607605, "answer_score": 0.4004951655864715, "sibling_qid": "KOL-2018-06-0182-Q002", "sibling_text": "what is attained eedi required eedi reference eedi which must be more", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Attained EEDI, required EEDI, reference line value and reduction factor", "cross_family": false } ] }, { "qid": "CHE-2026-05-0562-Q028S3", "text": "MLC all titles ?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "NOx Limits / Tier", "tid": "CHE-2026-05-0562", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.530798077583313, "sibling_score": 0.530798077583313, "answer_score": 0.23820924311876296, "sibling_qid": "KOC-2026-05-2135-Q011", "sibling_text": "mlc titles explain title 1 explain dmlc part 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": true }, { "answer_id": "BWM-D1D2-P02-002", "score": 0.43748798966407776, "sibling_score": 0.43748798966407776, "answer_score": null, "sibling_qid": "KOC-2022-02-1169-Q004", "sibling_text": "bwms all standards only title", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "BWM Section D standards — D-1 to D-5 overview and how they differ", "cross_family": true }, { "answer_id": "MLC-WRH-B-006", "score": 0.4331735372543335, "sibling_score": 0.4331735372543335, "answer_score": null, "sibling_qid": "MUM-2026-06-3645-Q001", "sibling_text": "certificates of mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": true } ] }, { "qid": "CHE-2026-05-0562-Q028S4", "text": "What are all the things as second engineer you will look after MLC ,DMLC1 &2 ?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "NOx Limits / Tier", "tid": "CHE-2026-05-0562", "tray": "new", "candidates": [ { "answer_id": "LLC-SURV-P01-001", "score": 0.5902624130249023, "sibling_score": 0.5902624130249023, "answer_score": 0.4116748496890068, "sibling_qid": "MUM-2024-07-0188-Q005", "sibling_text": "ll survey things to check as 2nd engineer", "sibling_family": "", "via": "sibling", "answer_title": "Load line survey preparation as Second Engineer: engine-room scope, machinery openings, tanks/vents, valves and overboard checks", "cross_family": false }, { "answer_id": "EECS-007", "score": 0.5559713840484619, "sibling_score": 0.5559713840484619, "answer_score": null, "sibling_qid": "KOL-2018-08-0204-Q004", "sibling_text": "eeoi n ssemp what u do as 2nd engineer", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "07. EEDI, EEOI and SEEMP — and how each applies on board", "cross_family": false }, { "answer_id": "AVI-SCOPE-003", "score": 0.5433698296546936, "sibling_score": 0.5433698296546936, "answer_score": null, "sibling_qid": "MUM-2024-09-2771-Q004", "sibling_text": "as a 2nd engineer what you will do to comply with annex 6 and many cross questions", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "As a Second Engineer, how do you demonstrate and maintain Annex VI compliance on board?", "cross_family": false } ] }, { "qid": "CHE-2026-05-0563-Q008", "text": "Dual fuel Mega and Megi advantages and disadvantages?", "family": "Turbocharger", "subtopic": "Turbocharger Construction & Surging", "tid": "CHE-2026-05-0563", "tray": "new", "candidates": [ { "answer_id": "IGC-IGF-006", "score": 0.5403995513916016, "sibling_score": 0.5403995513916016, "answer_score": null, "sibling_qid": "MUM-2024-08-2238-Q011", "sibling_text": "what is reduced by dual fuel", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Dual-fuel engines — modes, safeties and why 'dual fuel'", "cross_family": true }, { "answer_id": "MEGI-304-004", "score": 0.5321718454360962, "sibling_score": 0.5321718454360962, "answer_score": null, "sibling_qid": "KOL-2017-05-3053-Q002", "sibling_text": "in dual fuel generator why do is used along with methane in every firring", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "4. Pilot fuel / pilot injection — purpose and why on every firing in gas mode", "cross_family": true }, { "answer_id": "DFUEL-566-001", "score": 0.5226093530654907, "sibling_score": 0.5226093530654907, "answer_score": null, "sibling_qid": "MUM-2024-06-2230-Q002", "sibling_text": "which fuels used in dual fuel", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "How does a dual-fuel engine use gas fuel with pilot fuel injection — and can it run on both liquid and gas?", "cross_family": true } ] }, { "qid": "CHE-2026-05-0563-Q014", "text": "AE Turbocharger checks before overhauling?", "family": "Turbocharger", "subtopic": "Turbocharger Construction & Surging", "tid": "CHE-2026-05-0563", "tray": "review", "candidates": [ { "answer_id": "TC-OVHL-001", "score": 0.7736136317253113, "sibling_score": 0.7736136317253113, "answer_score": 0.5842699229717254, "sibling_qid": "MUM-2023-01-1040-Q016", "sibling_text": "turbocharger overhaul in place checks on turbine shaft", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Main-engine turbocharger overhaul — procedure and post-overhaul checks", "cross_family": false }, { "answer_id": "TURBO-CS-P02-004", "score": 0.7566428780555725, "sibling_score": 0.7566428780555725, "answer_score": null, "sibling_qid": "KOL-2017-06-3063-Q002", "sibling_text": "before overhauling turbocharger what all clearance you will check after overhauling what all things you will check material of turbine blade", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharger clearances — what, how, and the k/l/m values", "cross_family": false }, { "answer_id": "TC-CS-P01-006", "score": 0.7390267848968506, "sibling_score": 0.7390267848968506, "answer_score": 0.578622767329216, "sibling_qid": "KOC-2024-07-1847-Q006", "sibling_text": "ae turbocharger overhaul", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "F·Turbocharger overhaul and clearances (ME and AE)", "cross_family": false } ] }, { "qid": "CHE-2026-05-0563-Q015", "text": "Thrust bearings purpose in AE,ME and Turbocharger?", "family": "Turbocharger", "subtopic": "TC Bearing", "tid": "CHE-2026-05-0563", "tray": "review", "candidates": [ { "answer_id": "AE-CSB-346-001", "score": 0.7217491865158081, "sibling_score": 0.7217491865158081, "answer_score": 0.5858200371265411, "sibling_qid": "KOC-2026-05-0033-Q004", "sibling_text": "thrust bearing purpose in ae", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Thrust bearing in an auxiliary / generator engine — purpose and location", "cross_family": true }, { "answer_id": "TCS-059-P04-006", "score": 0.7210627198219299, "sibling_score": 0.7210627198219299, "answer_score": 0.5888510584831238, "sibling_qid": "KOL-2023-12-3665-Q003", "sibling_text": "in radial turbocharger what kind of bearing used arrangement for axial thrust", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Bearings and axial thrust (radial turbocharger)", "cross_family": false }, { "answer_id": "TURBO-CS-P03-008", "score": 0.6893647313117981, "sibling_score": 0.6893647313117981, "answer_score": 0.5579004019498824, "sibling_qid": "CHE-2026-03-0181-Q012", "sibling_text": "turbocharger types of bearing", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharger bearings: types, lubrication, damage and action", "cross_family": false } ] }, { "qid": "CHE-2026-05-0563-Q017", "text": "Sterntube gravity tanks position?", "family": "Shafting, Propeller & Rudder", "subtopic": "Stern Tube / Shafting / Propeller / Rudder", "tid": "CHE-2026-05-0563", "tray": "new", "candidates": [ { "answer_id": "STT-BRG-002", "score": 0.5615753531455994, "sibling_score": 0.5615753531455994, "answer_score": null, "sibling_qid": "KOC-2023-12-0986-Q007", "sibling_text": "draw stern tube arrangement", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "1. Stern tube — arrangement, function, materials and types", "cross_family": false }, { "answer_id": "SPR-STERN-002", "score": 0.5394637584686279, "sibling_score": 0.5394637584686279, "answer_score": null, "sibling_qid": "KOC-2022-08-0083-Q001", "sibling_text": "draw stern frame show arrangement how stern tube is supported on fwd area of stern frame", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Propeller draw & dry-dock blade repair", "cross_family": false }, { "answer_id": "BHD-TYPE-B-001", "score": 0.5328916311264038, "sibling_score": 0.5328916311264038, "answer_score": null, "sibling_qid": "KOL-2022-04-0622-Q006", "sibling_text": "located in tank regulation for tank situated fwd of collision bulkhead", "sibling_family": "", "via": "sibling", "answer_title": "Collision bulkhead — definition, location and SOLAS regulations", "cross_family": false } ] }, { "qid": "CHE-2026-05-0564-Q004", "text": "Oil hole have linear curve why?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft / Crankpin", "tid": "CHE-2026-05-0564", "tray": "new", "candidates": [ { "answer_id": "CYL-LINER-P03-002", "score": 0.5186882019042969, "sibling_score": 0.5186882019042969, "answer_score": null, "sibling_qid": "KOL-2018-05-1373-Q013", "sibling_text": "linear leaking how will u find", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Detecting and confirming a cracked or leaking liner — and pinning the unit", "cross_family": true }, { "answer_id": "CYL-LINER-P04-004", "score": 0.4678884446620941, "sibling_score": 0.4678884446620941, "answer_score": 0.34661669135093687, "sibling_qid": "MUM-2025-11-2490-Q001", "sibling_text": "polar graph curve in liner no idea", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Polar wear graph / curve", "cross_family": true }, { "answer_id": "HYD-BONJ-001", "score": 0.4654892086982727, "sibling_score": 0.4654892086982727, "answer_score": null, "sibling_qid": "KOC-2022-10-0102-Q004", "sibling_text": "hydrostatic curve valya pidi ilarnu", "sibling_family": "", "via": "sibling", "answer_title": "Hydrostatic curves — what they give and how they are used", "cross_family": false } ] }, { "qid": "CHE-2026-05-0565-Q001", "text": "Fun-3 type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2026-05-0565", "tray": "review", "candidates": [ { "answer_id": "LLST-AB-001", "score": 0.688211977481842, "sibling_score": 0.688211977481842, "answer_score": 0.4338803768157959, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.6541525721549988, "sibling_score": 0.6541525721549988, "answer_score": null, "sibling_qid": "MUM-2026-03-0813-Q001", "sibling_text": "type of ship why only one function", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.6366345882415771, "sibling_score": 0.6366345882415771, "answer_score": 0.4268734514713287, "sibling_qid": "MUM-2026-02-0731-Q002", "sibling_text": "what type of ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "CHE-2026-05-0566-Q005", "text": "STP - What are the Chamber?Which Chamber required air?Why?", "family": "MARPOL - Annex IV (Sewage)", "subtopic": "STP / Sewage Treatment", "tid": "CHE-2026-05-0566", "tray": "review", "candidates": [ { "answer_id": "STP-SEW-007", "score": 0.7724710702896118, "sibling_score": 0.7724710702896118, "answer_score": 0.4001093596220016, "sibling_qid": "CHE-2025-08-0026-Q005", "sibling_text": "stp what are the chamber which chamber required air why", "sibling_family": "MARPOL - Annex IV (Sewage)", "via": "sibling", "answer_title": "Components, chambers, piping and venting", "cross_family": false }, { "answer_id": "CO2-SYS-005", "score": 0.4620895981788635, "sibling_score": 0.4620895981788635, "answer_score": null, "sibling_qid": "CHE-2026-04-0159-Q011", "sibling_text": "ventilation different co2 room and battery room", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 system safeties, CO2-room requirements, alarms and ventilation", "cross_family": true }, { "answer_id": "STERN-P03-002", "score": 0.4567139744758606, "sibling_score": 0.4567139744758606, "answer_score": null, "sibling_qid": "CHE-2026-05-0596-Q003", "sibling_text": "stern tube arrangements chrome liner connection air seal system lo pr air pressure including regulation", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Stern-tube seals: arrangement, air/lip seals, renewal/replacement and the vulcanized split-seal fitting method", "cross_family": true } ] }, { "qid": "CHE-2026-05-0567-Q001", "text": "type of ship?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2026-05-0567", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8361091613769531, "sibling_score": 0.8361091613769531, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8013883233070374, "sibling_score": 0.8013883233070374, "answer_score": 0.5470469176769256, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8000956177711487, "sibling_score": 0.8000956177711487, "answer_score": 0.5211817562580109, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "CHE-2026-05-0568-Q006", "text": "temperatures value of your ship (saturation, subcooling)?", "family": "Refrigeration & AC", "subtopic": "Sub-cooling / Superheat", "tid": "CHE-2026-05-0568", "tray": "review", "candidates": [ { "answer_id": "REF-SCSH-001", "score": 0.9073744416236877, "sibling_score": 0.9073744416236877, "answer_score": 0.5227226495742797, "sibling_qid": "CHE-2025-08-0190-Q006", "sibling_text": "temperatures value of your ship saturation subcooling", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Subcooling in refrigeration — meaning, purpose, significance and expected values", "cross_family": false }, { "answer_id": "REF-CYC-006", "score": 0.6819096207618713, "sibling_score": 0.6819096207618713, "answer_score": 0.5261067986488343, "sibling_qid": "MUM-2025-12-1236-Q007", "sibling_text": "what is saturation temp", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "6. Saturation temperature, subcooling, superheat and dryness fraction", "cross_family": false }, { "answer_id": "REF-SCSH-003", "score": 0.6354597210884094, "sibling_score": 0.6354597210884094, "answer_score": 0.5366477370262146, "sibling_qid": "KOL-2019-07-1469-Q003", "sibling_text": "what is sub cooling nd super heating wher it is done what if the condensor is not able to sub cool it if sea water temp is high what provision is there for sub cooling safety arrangements in ref system", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Subcooling and superheating together — where they occur, warm sea water, and compressor liquid protection", "cross_family": false } ] }, { "qid": "CHE-2026-05-0569-Q001", "text": "specifications of engine?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "CHE-2026-05-0569", "tray": "review", "candidates": [ { "answer_id": "ENG-NOM-006", "score": 0.7886028289794922, "sibling_score": 0.7886028289794922, "answer_score": null, "sibling_qid": "CHE-2026-03-0181-Q001", "sibling_text": "engine specification", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Short-form asks: SMC-C, LMC, and ME vs MC quickly", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7219322323799133, "sibling_score": 0.7219322323799133, "answer_score": null, "sibling_qid": "MUM-2026-07-3719-Q006", "sibling_text": "type of engine and it s specification", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false }, { "answer_id": "ETP-344-P03-003", "score": 0.489014607667923, "sibling_score": null, "answer_score": 0.489014607667923, "sibling_qid": "", "sibling_text": "engine nomenclature layout mark number and engine constant designation order man b w cylinders stroke bore letter k l s g bore in cm m programme concept e electronic c camshaft design c compact b camshaft controlled exhaust hybrid mark number gi if gas injection tier rating stroke bore letters k short l long s super long g ultra long green the ratios are approximate design values not exact", "sibling_family": "", "via": "answer_title", "answer_title": "Engine nomenclature, layout, mark number and engine constant", "cross_family": false } ] }, { "qid": "CHE-2026-05-0570-Q002", "text": "how to find out different between scheduled pipe and carbon stell pipe [not accepting by thicness ,seemless also not accepting]?", "family": "Workshop & Welding", "subtopic": "Pipe Material", "tid": "CHE-2026-05-0570", "tray": "review", "candidates": [ { "answer_id": "PIPE-MAT-005", "score": 0.7521035075187683, "sibling_score": 0.7521035075187683, "answer_score": 0.5475250333547592, "sibling_qid": "CHE-2026-04-0504-Q001", "sibling_text": "carbon steel pipe and schedule pipe both are same thickness and are lying in workshop how u differentiate", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "“Schedule pipe” vs “carbon-steel pipe” — and how to tell them apart", "cross_family": false }, { "answer_id": "PIPE-MAT-001", "score": 0.6400867104530334, "sibling_score": 0.6400867104530334, "answer_score": 0.44779725670814513, "sibling_qid": "MUM-2022-09-2144-Q003", "sibling_text": "how to order a sw pipe how to know thickness of pipe without opening the pipe i said schedule but not satisfied", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Ordering / specifying a replacement or sea-water pipe", "cross_family": false }, { "answer_id": "PIPE-MAT-004", "score": 0.5958418250083923, "sibling_score": 0.5958418250083923, "answer_score": 0.47994530498981475, "sibling_qid": "KOC-2026-04-0892-Q012", "sibling_text": "what is schedule of pipe", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Pipe schedule and its relation to thickness, ID, OD", "cross_family": false } ] }, { "qid": "CHE-2026-05-0571-Q003", "text": "Difference between boiler combustion and main engine combustion ( more cross questions on boiler combustion process and assembly of nozzle)?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Performance parameters", "tid": "CHE-2026-05-0571", "tray": "review", "candidates": [ { "answer_id": "BLR-OPS-007", "score": 0.7685950398445129, "sibling_score": 0.7685950398445129, "answer_score": null, "sibling_qid": "CHE-2026-05-0632-Q013", "sibling_text": "firing process in main engine and boiler", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Explain the firing sequence of an automatically fired boiler.", "cross_family": false }, { "answer_id": "BFEYE-340-003", "score": 0.7025724649429321, "sibling_score": 0.7025724649429321, "answer_score": null, "sibling_qid": "KOL-2018-01-1344-Q004", "sibling_text": "boiler combustion system how flame established etc", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler firing / ignition sequence: pilot burner, primary and secondary flame, ignition transformer", "cross_family": true }, { "answer_id": "ACC-603-008", "score": 0.6830170750617981, "sibling_score": 0.6830170750617981, "answer_score": null, "sibling_qid": "KOC-2026-05-0041-Q004", "sibling_text": "how combustion taking place in engine and boiler what are parameters to be acquired for combustion", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Parameters checked during automatic combustion, flue-gas oxygen, and keeping black smoke away", "cross_family": true } ] }, { "qid": "CHE-2026-05-0571-Q006", "text": "Boiler easing gear operation.tell me in which emergency situation you operate easing gear?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "CHE-2026-05-0571", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.6791132092475891, "sibling_score": 0.6791132092475891, "answer_score": null, "sibling_qid": "MUM-2026-05-3267-Q005", "sibling_text": "boiler safety valve why you required easing gear", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "BFM-330-004", "score": 0.665550947189331, "sibling_score": 0.665550947189331, "answer_score": 0.49429328441619874, "sibling_qid": "MUM-2025-09-1197-Q005", "sibling_text": "boiler emergency operation", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler emergency operation and manual firing by fire stick", "cross_family": true }, { "answer_id": "BLR-SURV-P02-008", "score": 0.6150032877922058, "sibling_score": 0.6150032877922058, "answer_score": null, "sibling_qid": "MUM-2026-05-3130-Q006", "sibling_text": "how you direct junior to start boiler manually if automation fails", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "CHE-2026-05-0572-Q010", "text": "Evaporator parameters what you check ?", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "CHE-2026-05-0572", "tray": "new", "candidates": [ { "answer_id": "CMPB-561-001", "score": 0.6031515598297119, "sibling_score": 0.6031515598297119, "answer_score": null, "sibling_qid": "MUM-2026-06-3523-Q004", "sibling_text": "boiler type and evaporation rate", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Double-evaporation boiler — what it is, and how it differs from a composite boiler", "cross_family": true }, { "answer_id": "ACJCW-008", "score": 0.580926239490509, "sibling_score": 0.580926239490509, "answer_score": null, "sibling_qid": "KOL-2022-04-1916-Q003", "sibling_text": "shell and tube type cooler leak detection check accepted tell tale hole check what is inside the tube and what is outside the tube why expansion arrangement sealing material no of seals", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Shell-and-tube cooler: leak detection, tube-side flow, expansion and sealing", "cross_family": false }, { "answer_id": "PTHE-005", "score": 0.5754213929176331, "sibling_score": 0.5754213929176331, "answer_score": null, "sibling_qid": "MUM-2026-05-3323-Q008", "sibling_text": "how to check heat exchange is efficient and what provision giving on it to check", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Confirming a heat exchanger is at good efficiency", "cross_family": false } ] }, { "qid": "CHE-2026-05-0572-Q011", "text": "Taking over procedure in ER ?", "family": "ISM Code", "subtopic": "SMS / Functional Requirements", "tid": "CHE-2026-05-0572", "tray": "new", "candidates": [ { "answer_id": "2E-EMACT-001", "score": 0.5716217756271362, "sibling_score": 0.5716217756271362, "answer_score": 0.35448389053344725, "sibling_qid": "CHE-2025-08-0414-Q005", "sibling_text": "taking over procedure in er and some more cross question i don t remember repeat both fun", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Engine-room watch handover — taking-over procedure", "cross_family": true }, { "answer_id": "CO2-SYS-001", "score": 0.46440589427948, "sibling_score": 0.46440589427948, "answer_score": null, "sibling_qid": "KOL-2022-05-0634-Q002", "sibling_text": "procedure to enter er after co2 flooding 3 mlc 2006", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 release procedure, shutdowns, re-entry and casualty-use decisions", "cross_family": true }, { "answer_id": "UMS-310-001", "score": 0.4036409854888916, "sibling_score": 0.4036409854888916, "answer_score": null, "sibling_qid": "MUM-2024-08-2769-Q002", "sibling_text": "ums regulations for e r", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a UMS ship and what does SOLAS require? (Part E, regs 46–53)", "cross_family": false } ] }, { "qid": "CHE-2026-05-0573-Q007", "text": "how you do encomiser cleaning,how you know you did your cleaning effectively?", "family": "Boilers - Construction & Components", "subtopic": "Boiler Tubes / Economiser Tubes", "tid": "CHE-2026-05-0573", "tray": "new", "candidates": [ { "answer_id": "SCAV-323-P02-005", "score": 0.50827956199646, "sibling_score": 0.50827956199646, "answer_score": null, "sibling_qid": "KOL-2018-04-3138-Q004", "sibling_text": "scavenge cleaning has been carried out 3rd s going inside for inspection wat u things as a 2e ull tell him to check specifically nd report to you", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Scavenge-space inspection: preparation, checks and findings", "cross_family": true }, { "answer_id": "ECON-EGB-005", "score": 0.48982131481170654, "sibling_score": 0.48982131481170654, "answer_score": 0.346004569530487, "sibling_qid": "KOC-2025-01-1457-Q010", "sibling_text": "egb cleaning wanted to hear chemical cleaning and chemical used didn t knew", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Cleaning, choking & soot-fire prevention / indication / temperature", "cross_family": false }, { "answer_id": "BFS-257-010", "score": 0.47202068567276, "sibling_score": 0.47202068567276, "answer_score": 0.37868843972682953, "sibling_qid": "MUM-2026-06-3391-Q007", "sibling_text": "soot blowing done efficiently how do u know", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "How to confirm soot blowing has been carried out effectively", "cross_family": true } ] }, { "qid": "CHE-2026-05-0573-Q008", "text": "After starting boiler what all are the checks you will do,what is flame colour,if flame colour not Good,what you will do... flame colour how it will affect otherthan black smoke?", "family": "Boilers - Burner & Combustion Control", "subtopic": "Burner / Flame Failure / Combustion", "tid": "CHE-2026-05-0573", "tray": "review", "candidates": [ { "answer_id": "BFM-330-001", "score": 0.7381697297096252, "sibling_score": 0.7381697297096252, "answer_score": 0.5839163392782211, "sibling_qid": "MUM-2026-02-1259-Q002", "sibling_text": "boiler giving flame failure why and action", "sibling_family": "Boilers - Burner & Combustion Control", "via": "sibling", "answer_title": "Boiler flame failure or burner not firing — troubleshooting", "cross_family": false }, { "answer_id": "BFEYE-340-001", "score": 0.7123040556907654, "sibling_score": 0.7123040556907654, "answer_score": null, "sibling_qid": "KOL-2018-03-3127-Q004", "sibling_text": "boiler flame failure reason and checks", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Flame failure: why it is a boiler safety, trip logic, alarm and testing", "cross_family": true }, { "answer_id": "BFM-330-002", "score": 0.7067859172821045, "sibling_score": 0.7067859172821045, "answer_score": 0.5993796348571777, "sibling_qid": "KOL-2016-08-1228-Q005", "sibling_text": "boiler flame condn no flame small flame flickering flame", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler flame conditions and what they indicate", "cross_family": true } ] }, { "qid": "CHE-2026-05-0573-Q010", "text": "Why visotherm is there in engine,how it will effect your combustion?", "family": "Automation & Controls", "subtopic": "Viscotherm", "tid": "CHE-2026-05-0573", "tray": "new", "candidates": [ { "answer_id": "FHV-001", "score": 0.5696643590927124, "sibling_score": 0.5696643590927124, "answer_score": null, "sibling_qid": "KOL-2026-07-4277-Q006", "sibling_text": "viscosity maintained in main engine", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "01. Viscotherm / viscometer / viscosity controller", "cross_family": true }, { "answer_id": "ETP-344-P03-007", "score": 0.5433589220046997, "sibling_score": 0.5433589220046997, "answer_score": null, "sibling_qid": "CHE-2026-04-0263-Q001", "sibling_text": "terms used for efficient combustion in an engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Combustion in the cylinder — atomisation, penetration, turbulence, swirl, squish", "cross_family": true }, { "answer_id": "VIT-MECH-B-002", "score": 0.5240371227264404, "sibling_score": 0.5240371227264404, "answer_score": null, "sibling_qid": "KOL-2021-11-1646-Q002", "sibling_text": "conventional vit how fuel index can be controlled with adjusting vit", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How VIT is adjusted and set — timing and fuel-quality (FQS) interactions", "cross_family": true } ] }, { "qid": "CHE-2026-05-0574-Q002", "text": "No flow alarm?", "family": "SOLAS - Fire Safety", "subtopic": "CO2 System", "tid": "CHE-2026-05-0574", "tray": "review", "candidates": [ { "answer_id": "CO2-SYS-005", "score": 0.8816915154457092, "sibling_score": 0.8816915154457092, "answer_score": null, "sibling_qid": "CHE-2025-08-0027-Q003", "sibling_text": "no flow alarm", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 system safeties, CO2-room requirements, alarms and ventilation", "cross_family": false }, { "answer_id": "JCW-SYS-008", "score": 0.7002549767494202, "sibling_score": 0.7002549767494202, "answer_score": 0.430875751376152, "sibling_qid": "KOC-2025-03-1031-Q026", "sibling_text": "jcw non flow alarm", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "What is the jacket cooling-water no-flow alarm", "cross_family": true }, { "answer_id": "MSB-ESB-E-001", "score": 0.5731110572814941, "sibling_score": 0.5731110572814941, "answer_score": null, "sibling_qid": "KOC-2023-01-1229-Q006", "sibling_text": "msb alarms not trips", "sibling_family": "", "via": "sibling", "answer_title": "What safeties, protection trips, relays and alarms are provided on the MSB / ESB, and how are they tested?", "cross_family": false } ] }, { "qid": "CHE-2026-05-0576-Q002", "text": "No flow alarm?", "family": "SOLAS - Fire Safety", "subtopic": "CO2 System", "tid": "CHE-2026-05-0576", "tray": "review", "candidates": [ { "answer_id": "CO2-SYS-005", "score": 0.881691575050354, "sibling_score": 0.881691575050354, "answer_score": null, "sibling_qid": "CHE-2025-08-0027-Q003", "sibling_text": "no flow alarm", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 system safeties, CO2-room requirements, alarms and ventilation", "cross_family": false }, { "answer_id": "JCW-SYS-008", "score": 0.7002549767494202, "sibling_score": 0.7002549767494202, "answer_score": 0.430875751376152, "sibling_qid": "KOC-2025-03-1031-Q026", "sibling_text": "jcw non flow alarm", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "What is the jacket cooling-water no-flow alarm", "cross_family": true }, { "answer_id": "MSB-ESB-E-001", "score": 0.5731110572814941, "sibling_score": 0.5731110572814941, "answer_score": null, "sibling_qid": "KOC-2023-01-1229-Q006", "sibling_text": "msb alarms not trips", "sibling_family": "", "via": "sibling", "answer_title": "What safeties, protection trips, relays and alarms are provided on the MSB / ESB, and how are they tested?", "cross_family": false } ] }, { "qid": "CHE-2026-05-0578-Q001", "text": "What type of ship and engine", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "CHE-2026-05-0578", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P01-001", "score": 0.7656517028808594, "sibling_score": 0.7656517028808594, "answer_score": null, "sibling_qid": "MUM-2026-04-2675-Q006S5", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7649948000907898, "sibling_score": 0.7649948000907898, "answer_score": null, "sibling_qid": "MUM-2026-06-3490-Q006", "sibling_text": "engine sailed type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "AC-VE-001", "score": 0.7165837287902832, "sibling_score": 0.7165837287902832, "answer_score": null, "sibling_qid": "MUM-2026-01-2904-Q001", "sibling_text": "what type of ship engine power and nomenclature", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Volumetric efficiency: define it, and if it drops how do you improve it (with bumping clearance)?", "cross_family": false } ] }, { "qid": "CHE-2026-05-0578-Q007", "text": "Po asked : what is difference between telescopic feeler gauge and normal feeler gauge and why that name?", "family": "Gauges & Tools", "subtopic": "Feeler Gauge", "tid": "CHE-2026-05-0578", "tray": "new", "candidates": [ { "answer_id": "MICR-002", "score": 0.5646516680717468, "sibling_score": 0.5646516680717468, "answer_score": null, "sibling_qid": "KOL-2018-05-1373-Q012", "sibling_text": "screw gauge zero calibration", "sibling_family": "Gauges & Tools", "via": "sibling", "answer_title": "Zero setting, calibration, error check and trueness", "cross_family": false }, { "answer_id": "MN-BRG-C-003", "score": 0.518500804901123, "sibling_score": 0.518500804901123, "answer_score": null, "sibling_qid": "KOL-2023-11-3655-Q008", "sibling_text": "how to take main bearing clearance 2 methods where will you insert depth gauge and telescopic feeler gauge", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main bearing clearance and wear-down: measuring and interpreting", "cross_family": true }, { "answer_id": "MICR-003", "score": 0.5179182291030884, "sibling_score": 0.5179182291030884, "answer_score": 0.4401280522346496, "sibling_qid": "KOL-2024-09-3709-Q005", "sibling_text": "liner calibration micometer zerro error setting and how to take reading", "sibling_family": "Gauges & Tools", "via": "sibling", "answer_title": "Cylinder liner calibration with the inside micrometer", "cross_family": false } ] }, { "qid": "CHE-2026-05-0581-Q008", "text": "If aux engine not rotating by what are all the possible causes", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE 4-Stroke Theory", "tid": "CHE-2026-05-0581", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-007", "score": 0.7143394351005554, "sibling_score": 0.7143394351005554, "answer_score": null, "sibling_qid": "MUM-2025-12-1227-Q013", "sibling_text": "aux engine bearing nip and crush why bearing dont rotate many cross on this", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE big-end / bottom-end bearing — inspection, bedding, nip and crush", "cross_family": false }, { "answer_id": "SAV-002", "score": 0.6487428545951843, "sibling_score": 0.6487428545951843, "answer_score": null, "sibling_qid": "KOC-2021-12-1771-Q006", "sibling_text": "auxiliary engine not turning on air only oscillates not the one with starter type he was asking about starting air valve mounted type he said on the air distributor there will be two disc one has only one hole another has multiple holes one of them is stationary and the other is rotary the gap between this two disc increased which cause starting air to leak out instead of going into the unit", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Identifying and testing a leaking starting air valve", "cross_family": true }, { "answer_id": "SAV-005", "score": 0.6394054293632507, "sibling_score": 0.6394054293632507, "answer_score": null, "sibling_qid": "MUM-2026-06-3650-Q001", "sibling_text": "auxiliary engine not starting in air", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "How air is admitted, and faults that stop starting air admission", "cross_family": true } ] }, { "qid": "CHE-2026-05-0582-Q010", "text": "Why now a days VFD drives are used for motor?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Inverter / VFD", "tid": "CHE-2026-05-0582", "tray": "review", "candidates": [ { "answer_id": "VFD-INV-P02-002", "score": 0.6666906476020813, "sibling_score": 0.6666906476020813, "answer_score": null, "sibling_qid": "KOC-2021-09-1146-Q018", "sibling_text": "because when large motor starts it draws huge current drops voltage connection in series makes the avr directly a function of current also paul sir vfd", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "How are voltage and frequency varied and controlled in a VFD?", "cross_family": false }, { "answer_id": "VFD-INV-P01-002", "score": 0.6622790098190308, "sibling_score": 0.6622790098190308, "answer_score": 0.494044828414917, "sibling_qid": "KOC-2023-01-1227-Q005", "sibling_text": "vfd where used", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Where is a VFD used onboard, and why?", "cross_family": false }, { "answer_id": "XFMR-THY-E-001", "score": 0.6512964367866516, "sibling_score": 0.6512964367866516, "answer_score": null, "sibling_qid": "CHE-2025-08-0276-Q009", "sibling_text": "core loss and copper loss explain p o deciding question why now a days vfd drives are used for motor internal po external venugopal", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Core / iron loss and eddy-current loss", "cross_family": false } ] }, { "qid": "CHE-2026-05-0583-Q005", "text": "how power is calculated onboard ship.", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "CHE-2026-05-0583", "tray": "review", "candidates": [ { "answer_id": "RES-PROP-P02-004", "score": 0.671873927116394, "sibling_score": 0.671873927116394, "answer_score": 0.5086264193058013, "sibling_qid": "KOL-2016-09-0014-Q005", "sibling_text": "how you calculate power of ship 4", "sibling_family": "", "via": "sibling", "answer_title": "Ship power definitions and estimation — effective, delivered, shaft and indicated power", "cross_family": false }, { "answer_id": "PF-D-001", "score": 0.6166791915893555, "sibling_score": 0.6166791915893555, "answer_score": null, "sibling_qid": "MUM-2025-09-1643-Q005", "sibling_text": "power factor on your ship where did you see how to calculate if not shown", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "How kW, kVA, kVAR, current and the power triangle relate to power factor", "cross_family": true }, { "answer_id": "ALT-GEN-P02-001", "score": 0.5990456342697144, "sibling_score": 0.5990456342697144, "answer_score": null, "sibling_qid": "KOC-2025-11-1629-Q002", "sibling_text": "ship power specifications", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Alternator/generator specifications, ratings and ship electrical supply details", "cross_family": true } ] }, { "qid": "CHE-2026-05-0583-Q007", "text": "boiler safety valve lifting pressure.", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "CHE-2026-05-0583", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.8850799202919006, "sibling_score": 0.8850799202919006, "answer_score": null, "sibling_qid": "CHE-2026-05-0583-Q002", "sibling_text": "boiler safety valve lifting pressure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.7854938507080078, "sibling_score": 0.7854938507080078, "answer_score": null, "sibling_qid": "CHE-2026-09-3931-Q006", "sibling_text": "boiler safety valve pressure setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-002", "score": 0.7742279171943665, "sibling_score": 0.7742279171943665, "answer_score": null, "sibling_qid": "KOL-2026-02-3922-Q005", "sibling_text": "what is lifting of safety valve tell only within 3 percent of designated set pressure nothing else", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Acceptance limits and durations — the accumulation limit, the maximum test periods, and the action if the limit is exceeded", "cross_family": false } ] }, { "qid": "CHE-2026-05-0584-Q001", "text": "Type of ship sailed ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2026-05-0584", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8457899689674377, "sibling_score": 0.8457899689674377, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8448032140731812, "sibling_score": 0.8448032140731812, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7926929593086243, "sibling_score": 0.7926929593086243, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "CHE-2026-05-0584-Q008", "text": "how to remove the motor fan?", "family": "Electrical - Motors & Starters", "subtopic": "Motor Not Starting", "tid": "CHE-2026-05-0584", "tray": "review", "candidates": [ { "answer_id": "MNS-027", "score": 0.7674581408500671, "sibling_score": 0.7674581408500671, "answer_score": 0.522564172744751, "sibling_qid": "CHE-2025-08-0278-Q008", "sibling_text": "how to remove the motor fan", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Removing the motor cooling fan", "cross_family": false }, { "answer_id": "IND-MOT-A-001", "score": 0.5881590843200684, "sibling_score": 0.5881590843200684, "answer_score": null, "sibling_qid": "KOL-2021-07-1837-Q011", "sibling_text": "dismantling of electrical motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "1. Working principle of a three-phase induction motor", "cross_family": false }, { "answer_id": "IR-TEST-B-009", "score": 0.5673564672470093, "sibling_score": 0.5673564672470093, "answer_score": null, "sibling_qid": "CHE-2025-08-0296-Q005", "sibling_text": "how to bring the insulation back without removing the motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Sea-water-flooded or hosed motor — recovery before re-energising", "cross_family": false } ] }, { "qid": "CHE-2026-05-0585-Q003", "text": "Crankshaft deflection: delection gauge pressure (mm) when fitting between crank web?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft Deflection", "tid": "CHE-2026-05-0585", "tray": "review", "candidates": [ { "answer_id": "CRK-DEFL-002", "score": 0.7067217230796814, "sibling_score": 0.7067217230796814, "answer_score": null, "sibling_qid": "KOL-2022-08-3562-Q005", "sibling_text": "reason of crankshaft deflection procedure for deflection measurement", "sibling_family": "2-Stroke - 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How this bhp is measured.", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Engine Theory / Performance", "tid": "CHE-2026-05-0588", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P01-001", "score": 0.7732869386672974, "sibling_score": 0.7732869386672974, "answer_score": 0.5079140335321426, "sibling_qid": "CHE-2025-08-0198-Q003", "sibling_text": "you see bhp in ecr how this bhp is measured", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "MIP-264-003", "score": 0.6645290851593018, "sibling_score": 0.6645290851593018, "answer_score": 0.483882349729538, "sibling_qid": "KOL-2018-11-1430-Q008", "sibling_text": "what is ihp and bhp where we measure it", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Calculate engine power: IHP and BHP, and where each is measured", "cross_family": false }, { "answer_id": "ETP-344-P01-008", "score": 0.6265836358070374, "sibling_score": 0.6265836358070374, "answer_score": null, "sibling_qid": "MUM-2026-04-2675-Q006S5S3", "sibling_text": "how to measure bhp during shop test", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Verifying power — shop test, test bed, sea trial", "cross_family": false } ] }, { "qid": "CHE-2026-05-0588-Q002", "text": "Turbocharger in your ae, function of nozzle ring. Barred range and critical rpm?", "family": "Turbocharger", "subtopic": "TC Construction", "tid": "CHE-2026-05-0588", "tray": "review", "candidates": [ { "answer_id": "TC-CONST-004", "score": 0.7725600004196167, "sibling_score": 0.7725600004196167, "answer_score": null, "sibling_qid": "CHE-2025-08-0198-Q004", "sibling_text": "turbocharger in your ae function of nozzle ring", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbine-side components: nozzle rings, vanes and blade fitting", "cross_family": false }, { "answer_id": "TCS-059-P04-004", "score": 0.7015799880027771, "sibling_score": 0.7015799880027771, "answer_score": null, "sibling_qid": "KOL-2025-06-1808-Q011", "sibling_text": "function of nozzle ring in turbocharger what will happen if nozzle ring is fouled", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Nozzle ring: function, gas path, and nozzle type", "cross_family": false }, { "answer_id": "SHRD-440-001", "score": 0.6694965958595276, "sibling_score": 0.6694965958595276, "answer_score": null, "sibling_qid": "KOC-2024-10-2054-Q010", "sibling_text": "function of shroud ring in turbocharger function3", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "What is the shroud ring, where is it fitted, and what does it do?", "cross_family": false } ] }, { "qid": "CHE-2026-05-0588-Q003", "text": "Ae starting air motor the line from air bottle to exit all components and how clutch engage and disengage. Po sir", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "", "tid": "CHE-2026-05-0588", "tray": "review", "candidates": [ { "answer_id": "SAV-003", "score": 0.6727887988090515, "sibling_score": 0.6727887988090515, "answer_score": null, "sibling_qid": "MUM-2024-03-2760-Q002", "sibling_text": "you find one starting air line of unit red hot actions wanted to listen closing of starting air valve from air bottle then other actions", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Action when a unit starting air valve leaks or the line goes red hot in manoeuvring", "cross_family": true }, { "answer_id": "EICU-MAN-P02-004", "score": 0.6152504682540894, "sibling_score": 0.6152504682540894, "answer_score": null, "sibling_qid": "KOL-2018-04-1858-Q002", "sibling_text": "2 starting air line number of stop valves interlock etc", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Main-engine manoeuvring interlocks and the running-direction interlock", "cross_family": true }, { "answer_id": "SAV-005", "score": 0.6148585081100464, "sibling_score": 0.6148585081100464, "answer_score": null, "sibling_qid": "KOL-2018-03-1358-Q002", "sibling_text": "starting air line full description control air pressure and main pressure", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "How air is admitted, and faults that stop starting air admission", "cross_family": true } ] }, { "qid": "CHE-2026-05-0588-Q005", "text": "Low pressure evaporation", "family": "Fresh Water & Domestic Systems", "subtopic": "", "tid": "CHE-2026-05-0588", "tray": "new", "candidates": [ { "answer_id": "FWG-RO-001", "score": 0.5917158722877502, "sibling_score": 0.5917158722877502, "answer_score": null, "sibling_qid": "MUM-2025-09-1197-Q006", "sibling_text": "fwg working principle did not accept low pressure evaporation and cooling", "sibling_family": "Fresh Water & Domestic Systems", "via": "sibling", "answer_title": "How is vacuum created in the FWG, why does it run under vacuum, and what if the vacuum will not come?", "cross_family": false }, { "answer_id": "NPSH-CAV-002", "score": 0.5571610927581787, "sibling_score": 0.5571610927581787, "answer_score": 0.4075039908289909, "sibling_qid": "KOC-2024-05-0994-Q003", "sibling_text": "vapour pressure", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Define vapour pressure and its importance for a centrifugal pump. How does cavitation occur because of it?", "cross_family": true }, { "answer_id": "REF-CYC-009", "score": 0.5557207465171814, "sibling_score": 0.5557207465171814, "answer_score": null, "sibling_qid": "KOC-2026-09-2182-Q001", "sibling_text": "saturation vapour pressure", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "The refrigeration cycle on the P-H diagram — saturation curve, saturated vapour pressure, subcooling", "cross_family": true } ] }, { "qid": "CHE-2026-05-0589-Q010", "text": "eme supply onboard?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "PT / CT", "tid": "CHE-2026-05-0589", "tray": "new", "candidates": [ { "answer_id": "MSB-ESB-C-001", "score": 0.5158949494361877, "sibling_score": 0.5158949494361877, "answer_score": null, "sibling_qid": "CHE-2026-05-0620-Q007", "sibling_text": "esb supplies", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "MSB-ESB interconnection, tie breaker/interlock and emergency supply transfer", "cross_family": true }, { "answer_id": "SHORE-CONN-P03-001", "score": 0.5073267221450806, "sibling_score": 0.5073267221450806, "answer_score": null, "sibling_qid": "KOL-2026-05-0059-Q004", "sibling_text": "shore supply", "sibling_family": "", "via": "sibling", "answer_title": "Taking electrical shore power in dry dock — preparation, checks and procedure", "cross_family": false }, { "answer_id": "bdc-p05-03", "score": 0.500129222869873, "sibling_score": 0.500129222869873, "answer_score": null, "sibling_qid": "CHE-2026-04-0379-Q005", "sibling_text": "gmdss source of supply", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "CQ-BDC-025 GMDSS reserve battery — requirement, supply, voltage and equipment Medium", "cross_family": true } ] }, { "qid": "CHE-2026-05-0590-Q001", "text": "Type of ship sailed?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2026-05-0590", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8460314869880676, "sibling_score": 0.8460314869880676, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8450428247451782, "sibling_score": 0.8450428247451782, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7928010821342468, "sibling_score": 0.7928010821342468, "answer_score": null, "sibling_qid": "CHE-2026-03-0253-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "CHE-2026-05-0591-Q001", "text": "Type of engine?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "CHE-2026-05-0591", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.8005334734916687, "sibling_score": 0.8005334734916687, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.792962908744812, "sibling_score": 0.792962908744812, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-001", "score": 0.45256524085998534, "sibling_score": null, "answer_score": 0.45256524085998534, "sibling_qid": "", "sibling_text": "1 turbocharger type main engine vs generator engine compressor is centrifugal in both cases only the turbine type differs large slow speed main engine axial flow turbine single stage constant pressure system", "sibling_family": "", "via": "answer_title", "answer_title": "1. Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "CHE-2026-05-0592-Q002", "text": "How 2nd order moments created, what is the counter action, how it does, what is moments ?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Vibration / Balancing", "tid": "CHE-2026-05-0592", "tray": "new", "candidates": [ { "answer_id": "VIB-BAL-C-FINAL-1-001", "score": 0.6038947701454163, "sibling_score": 0.6038947701454163, "answer_score": 0.4143981128931045, "sibling_qid": "MUM-2024-12-1098-Q004", "sibling_text": "second order moment in details", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "First- & Second-Order External Moments, Guide-Force Moments & Moment Compensators", "cross_family": false }, { "answer_id": "ETP-344-P03-009", "score": 0.3805569261312485, "sibling_score": null, "answer_score": 0.3805569261312485, "sibling_qid": "", "sibling_text": "moment compensator second order moment and counter rotating arrangement external unbalanced moments from the reciprocating rotating masses make the engine rock and can set up hull girder vibration if resonant first order moment acts in both vertical and horizontal planes at crank speed once per rev significant mainly on four cylinder engines", "sibling_family": "", "via": "answer_title", "answer_title": "Moment compensator, second-order moment and counter-rotating arrangement", "cross_family": false }, { "answer_id": "STRSTR-298-007", "score": 0.30262396931648256, "sibling_score": null, "answer_score": 0.30262396931648256, "sibling_qid": "", "sibling_text": "what are moments and moment of inertia and what are the types of moment of inertia moment turning effect force perpendicular distance n m a bending moment bends a beam shaft moment of inertia distribution of area or mass about an axis resists bending or rotation", "sibling_family": "", "via": "answer_title", "answer_title": "What are moments and moment of inertia, and what are the types of moment of inertia?", "cross_family": false } ] }, { "qid": "CHE-2026-05-0592-Q007", "text": "Explaing how egb fire takes place?", "family": "Boilers - Safety & Survey", "subtopic": "Boiler Strength Check", "tid": "CHE-2026-05-0592", "tray": "new", "candidates": [ { "answer_id": "UPT-FIRE-003", "score": 0.548287570476532, "sibling_score": 0.548287570476532, "answer_score": 0.41151989400386807, "sibling_qid": "KOC-2024-12-1883-Q004", "sibling_text": "egb fire as 2e", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Fire in the exhaust gas boiler or economiser — actions and instructions to the duty engineers", "cross_family": true }, { "answer_id": "SMK-FUNL-BF01-004", "score": 0.486922025680542, "sibling_score": 0.486922025680542, "answer_score": 0.4180029034614563, "sibling_qid": "CHE-2026-09-3929-Q001", "sibling_text": "action spark in funnel ege fire", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "There are sparks from the funnel on arrival in port — what is the reason and your action?", "cross_family": true }, { "answer_id": "SIH-FIRE-001", "score": 0.4793265163898468, "sibling_score": 0.4793265163898468, "answer_score": 0.37829473018646237, "sibling_qid": "MUM-2026-02-2548-Q002", "sibling_text": "egb fire what is symptoms", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "How will you identify an economiser / EGB fire — indications, symptoms and control?", "cross_family": true } ] }, { "qid": "CHE-2026-05-0593-Q001", "text": "slack chain indiction.How to knw chain is slack after entering crankcase?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Chain & Tensioning", "tid": "CHE-2026-05-0593", "tray": "review", "candidates": [ { "answer_id": "CHAIN-TENS-A-001", "score": 0.8097651600837708, "sibling_score": 0.8097651600837708, "answer_score": 0.5109410524368286, "sibling_qid": "CHE-2025-08-0420-Q002", "sibling_text": "slack chain indication how to knw chain is slack after entering crankcase", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Slack Chain — Indication & Effects", "cross_family": false }, { "answer_id": "CHAIN-TENS-C-001", "score": 0.7146947383880615, "sibling_score": 0.7146947383880615, "answer_score": 0.5046186983585358, "sibling_qid": "MUM-2024-04-2225-Q004", "sibling_text": "chain slack indicaton", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main-engine chain drive — how you know it is slack, and how you check and tighten it", "cross_family": false }, { "answer_id": "CHAIN-TENS-A-003", "score": 0.7093607783317566, "sibling_score": 0.7093607783317566, "answer_score": 0.49093061685562134, "sibling_qid": "MUM-2025-12-2519-Q008", "sibling_text": "chain slack indication and how will u tight", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Chain Tightening Procedure — MC / MC-C / ME", "cross_family": false } ] }, { "qid": "CHE-2026-05-0593-Q005", "text": "refractory failure?", "family": "Boilers - Construction & Components", "subtopic": "Furnace / Refractory", "tid": "CHE-2026-05-0593", "tray": "review", "candidates": [ { "answer_id": "FURN-REF-001", "score": 0.7148178219795227, "sibling_score": 0.7148178219795227, "answer_score": null, "sibling_qid": "MUM-2025-09-1186-Q005", "sibling_text": "refractory", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Boiler refractory — materials, types, composition and acidic / basic refractory", "cross_family": false }, { "answer_id": "FURN-REF-003", "score": 0.6194260716438293, "sibling_score": 0.6194260716438293, "answer_score": 0.41097181141376493, "sibling_qid": "KOL-2019-10-1876-Q004", "sibling_text": "4 refractory defects and how to maintain refractory in good condition", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Boiler refractory purpose, defects, failure reasons, maintenance and survey", "cross_family": false }, { "answer_id": "CREEP-FAT-P01-001", "score": 0.5495705008506775, "sibling_score": 0.5495705008506775, "answer_score": null, "sibling_qid": "KOC-2021-05-0936-Q003", "sibling_text": "creep failure", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "What is creep, and where does it occur in a marine engine?", "cross_family": true } ] }, { "qid": "CHE-2026-05-0593-Q006", "text": "honning in cylinder liner? Po then came", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "CHE-2026-05-0593", "tray": "new", "candidates": [ { "answer_id": "CYL-LINER-P04-002", "score": 0.6218010187149048, "sibling_score": 0.6218010187149048, "answer_score": 0.4145427584648132, "sibling_qid": "KOL-2021-11-3490-Q002", "sibling_text": "me cylinder liner o h", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Judging, measuring, removing & discarding a cylinder liner", "cross_family": false }, { "answer_id": "CYL-LINER-P02-001", "score": 0.5988097786903381, "sibling_score": 0.5988097786903381, "answer_score": null, "sibling_qid": "KOL-2021-08-3446-Q002", "sibling_text": "how honing is done in liner", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L1 · T044-PART_02-G001High", "cross_family": false }, { "answer_id": "CYL-LINER-P02-004", "score": 0.5839992761611938, "sibling_score": 0.5839992761611938, "answer_score": null, "sibling_qid": "KOL-2020-02-1517-Q002", "sibling_text": "one unit cylinder liner found oval causes n remedy", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L4 · T044-PART_02-G004High", "cross_family": false } ] }, { "qid": "CHE-2026-05-0593-Q009", "text": "crank shaft deflection,when y What u will come to knw.how many reading u take in one unit?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "", "tid": "CHE-2026-05-0593", "tray": "review", "candidates": [ { "answer_id": "CRK-DEFL-001", "score": 0.8227778673171997, "sibling_score": 0.8227778673171997, "answer_score": null, "sibling_qid": "CHE-2025-08-0420-Q009", "sibling_text": "crank shaft deflection when y what u will come to knw how many reading u take in one unit", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Purpose, timing and scope of crankshaft deflection", "cross_family": true }, { "answer_id": "CRK-DEFL-004", "score": 0.6770704388618469, "sibling_score": 0.6770704388618469, "answer_score": null, "sibling_qid": "KOL-2018-07-1396-Q003", "sibling_text": "you might have taken crankshaft deflection how many readings do you take and what do you conclude from each reading", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Interpreting the readings and acting on abnormal values", "cross_family": true }, { "answer_id": "CSD-BF036-003", "score": 0.6480485200881958, "sibling_score": 0.6480485200881958, "answer_score": null, "sibling_qid": "KOL-2026-09-4310-Q003", "sibling_text": "crankshaft deflection how to ascertain the taken readings are correct", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "A 3/E has handed you the deflection readings — how do you verify they were taken correctly?", "cross_family": true } ] }, { "qid": "CHE-2026-05-0594-Q001", "text": "tie rod getting slack reasons? geardrive chain drive difference Vibration excitation difference ?", "family": "2-Stroke - Components (Other)", "subtopic": "", "tid": "CHE-2026-05-0594", "tray": "new", "candidates": [ { "answer_id": "TR-TB-PA-006", "score": 0.6273947954177856, "sibling_score": 0.6273947954177856, "answer_score": null, "sibling_qid": "MUM-2026-03-1312-Q002", "sibling_text": "tie rod vibrations dampen arrangements", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Material, condition, fretting, vibration and elongation", "cross_family": true }, { "answer_id": "TR-TB-PA-001", "score": 0.6259739995002747, "sibling_score": 0.6259739995002747, "answer_score": null, "sibling_qid": "MUM-2023-03-1045-Q003", "sibling_text": "tie rod pretentioning why", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Function of tie rods and the firing-load path", "cross_family": true }, { "answer_id": "TBR-TT-P02-002", "score": 0.6241030693054199, "sibling_score": 0.6241030693054199, "answer_score": 0.4662849366664886, "sibling_qid": "KOL-2026-01-3904-Q004", "sibling_text": "tie rod slackned only one tie rod how will find when engine is in stop condition", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Checking tie rod tightness / slackness — stopped and running", "cross_family": true } ] }, { "qid": "CHE-2026-05-0594-Q005", "text": "C⁠o2 calibrator calibration procedure?", "family": "", "subtopic": "", "tid": "CHE-2026-05-0594", "tray": "new", "candidates": [ { "answer_id": "ESE-P02-002", "score": 0.6163387298583984, "sibling_score": 0.6163387298583984, "answer_score": null, "sibling_qid": "CHE-2026-04-0145-Q005S2", "sibling_text": "calibration procedure for gas detection equipment", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "ESE-P02-02. Oxygen analyser: working principle and calibration", "cross_family": false }, { "answer_id": "COT-P02-08", "score": 0.6088959574699402, "sibling_score": 0.6088959574699402, "answer_score": null, "sibling_qid": "MUM-2026-06-3648-Q002", "sibling_text": "how to calibrate o2 analyser", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Explain the working principle, sampling arrangement, calibration and failure response of the inert-gas oxygen analyser.", "cross_family": false }, { "answer_id": "CO2-SYS-002", "score": 0.5983689427375793, "sibling_score": 0.5983689427375793, "answer_score": null, "sibling_qid": "KOL-2023-07-0756-Q003", "sibling_text": "co2 weighing method when it is done why erratic reading we get process step by step to release co2", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 maintenance, inspection, testing and survey routines", "cross_family": false } ] }, { "qid": "CHE-2026-05-0594-Q008", "text": "What is ur engine?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "CHE-2026-05-0594", "tray": "review", "candidates": [ { "answer_id": "MIP-264-003", "score": 0.711537778377533, "sibling_score": 0.711537778377533, "answer_score": null, "sibling_qid": "MUM-2026-01-1248-Q002", "sibling_text": "engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Calculate engine power: IHP and BHP, and where each is measured", "cross_family": false }, { "answer_id": "MCC-MEB-P02-003", "score": 0.6778709888458252, "sibling_score": 0.6778709888458252, "answer_score": null, "sibling_qid": "MUM-2024-07-1084-Q004", "sibling_text": "me engine tha", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Conventional MC / MC-C versus electronic ME — the practical operating differences", "cross_family": true }, { "answer_id": "ENG-NOM-005", "score": 0.6471909880638123, "sibling_score": 0.6471909880638123, "answer_score": null, "sibling_qid": "KOL-2026-09-4295-Q002", "sibling_text": "engine name and full form", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false } ] }, { "qid": "CHE-2026-05-0594-Q009", "text": "What is the difference between 50 mc and 60 mc engine?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "CHE-2026-05-0594", "tray": "new", "candidates": [ { "answer_id": "MCC-MEB-P01-001", "score": 0.5764360427856445, "sibling_score": 0.5764360427856445, "answer_score": 0.42972618639469146, "sibling_qid": "CHE-2026-05-0563-Q001", "sibling_text": "mc and mc c engine difference", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "MC-C (\"Compact\") engine — design and the main constructional differences from MC", "cross_family": false }, { "answer_id": "EGTP-P02-005", "score": 0.5384734272956848, "sibling_score": 0.5384734272956848, "answer_score": 0.42504529356956483, "sibling_qid": "MUM-2026-06-3481-Q007", "sibling_text": "differentiate between mc and me engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "MC / MC-C / ME-C and Electronically Controlled Engines", "cross_family": false }, { "answer_id": "MEB-MEC-P03-001", "score": 0.5155444145202637, "sibling_score": 0.5155444145202637, "answer_score": null, "sibling_qid": "MUM-2022-10-0944-Q002", "sibling_text": "difference between me b and mc c engines", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "ME-B vs ME-C — the core difference", "cross_family": true } ] }, { "qid": "CHE-2026-05-0595-Q003", "text": "Immersion suit yearly checks as per solas?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "LSA Code", "tid": "CHE-2026-05-0595", "tray": "review", "candidates": [ { "answer_id": "LB-SURV-C-003", "score": 0.7071340680122375, "sibling_score": 0.7071340680122375, "answer_score": null, "sibling_qid": "CHE-2026-02-0103-Q002", "sibling_text": "immersion suit monthly 6 month and annual maintenance", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Routine maintenance ladder — weekly / monthly / quarterly / 6-monthly onboard checks", "cross_family": false }, { "answer_id": "LB-SURV-C-001", "score": 0.6515474319458008, "sibling_score": 0.6515474319458008, "answer_score": null, "sibling_qid": "KOL-2018-11-0229-Q004", "sibling_text": "yearly survey for life boat", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Annual thorough examination / SEQ survey of the lifeboat — scope, by whom, certificate", "cross_family": false }, { "answer_id": "LB-SURV-C-005", "score": 0.6510881781578064, "sibling_score": 0.6510881781578064, "answer_score": null, "sibling_qid": "KOC-2025-12-0763-Q008", "sibling_text": "life boat check all weekly monthly yearly and 5 yearly", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Periodic servicing intervals and the authorised service provider (MSC.402(96)); 5-yearly", "cross_family": false } ] }, { "qid": "CHE-2026-05-0595-Q004", "text": "Stratification in LNG?", "family": "Cargo Ops - Gas Carriers", "subtopic": "Tank Cooldown", "tid": "CHE-2026-05-0595", "tray": "new", "candidates": [ { "answer_id": "IGC-GAS-006", "score": 0.4392904043197632, "sibling_score": 0.4392904043197632, "answer_score": null, "sibling_qid": "KOL-2019-08-0306-Q002", "sibling_text": "lng ffa", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Deck fixed dry chemical powder (DCP) fire-extinguishing system", "cross_family": false }, { "answer_id": "FLP-142-P02-001", "score": 0.41961434483528137, "sibling_score": 0.41961434483528137, "answer_score": null, "sibling_qid": "MUM-2022-11-2715-Q008", "sibling_text": "longitudinal and sub division", "sibling_family": "", "via": "sibling", "answer_title": "Subdivision — what it is and why it is required", "cross_family": false }, { "answer_id": "SHELL-PLT-B-001", "score": 0.3734896183013916, "sibling_score": 0.3734896183013916, "answer_score": null, "sibling_qid": "CHE-2024-10-0509-Q007", "sibling_text": "garboard strake shear strake stellar strake", "sibling_family": "", "via": "sibling", "answer_title": "Sheer strake — location, why strengthened, deck-edge / gunwale connection", "cross_family": false } ] }, { "qid": "CHE-2026-05-0595-Q005", "text": "Pilot ladder integrity test?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Pilot Ladder / Transfer", "tid": "CHE-2026-05-0595", "tray": "new", "candidates": [ { "answer_id": "LBT-TEST-B-003", "score": 0.5332569479942322, "sibling_score": 0.5332569479942322, "answer_score": null, "sibling_qid": "KOC-2024-12-0488-Q004", "sibling_text": "lifeboat load test he didn t accept static and dynamic test where you got this 1 1 and 1 5 he was asking about brake test falls test 6 davit test 4 5 and davit foundation test he accepted 6 and 4 5 times load test", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Winch/davit brake test — static vs dynamic, holding capacity, slippage", "cross_family": false }, { "answer_id": "LBT-TEST-B-001", "score": 0.5272567272186279, "sibling_score": 0.5272567272186279, "answer_score": null, "sibling_qid": "KOC-2026-05-2131-Q006", "sibling_text": "tests in lifeboat davits explain dynamic test how much is the proof load how it is loaded", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat/davit load-test proof loads and test conditions", "cross_family": false }, { "answer_id": "LBT-TEST-B-004", "score": 0.522503674030304, "sibling_score": 0.522503674030304, "answer_score": null, "sibling_qid": "KOC-2024-02-0305-Q009", "sibling_text": "int what are the tests done on life boat davits", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Tests carried out on the lifeboat/davit onboard (overview)", "cross_family": false } ] }, { "qid": "CHE-2026-05-0597-Q006", "text": "In water survey what and u will check?", "family": "Drydock & Underwater Surveys", "subtopic": "IWS / In-Water Survey", "tid": "CHE-2026-05-0597", "tray": "review", "candidates": [ { "answer_id": "IWS-002", "score": 0.7991898655891418, "sibling_score": 0.7991898655891418, "answer_score": 0.4524724245071411, "sibling_qid": "CHE-2025-08-0203-Q007", "sibling_text": "in water survey what and u will check", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "In-water survey procedure as 2/E — checks, equipment, and thickness measurement", "cross_family": false }, { "answer_id": "UWS-391-001", "score": 0.7830379009246826, "sibling_score": 0.7830379009246826, "answer_score": 0.434930944442749, "sibling_qid": "MUM-2026-07-3816-Q003", "sibling_text": "in water survey things to check", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Underwater / in-water survey — what it is, when it is carried out, the procedure, the checks, and the requirements", "cross_family": false }, { "answer_id": "DDHSC-002", "score": 0.7014955878257751, "sibling_score": 0.7014955878257751, "answer_score": null, "sibling_qid": "MUM-2026-05-3328-Q009", "sibling_text": "underwater survey what do you check as a 2e", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Explain the underwater hull inspection and checks carried out as Second Engineer during drydock.", "cross_family": false } ] }, { "qid": "CHE-2026-05-0597-Q009", "text": "Values in ur ship?", "family": "Boilers - Safety & Survey", "subtopic": "Water Test (Chloride / pH / Phosphate)", "tid": "CHE-2026-05-0597", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-001", "score": 0.8212572932243347, "sibling_score": 0.8212572932243347, "answer_score": null, "sibling_qid": "CHE-2025-08-0203-Q010", "sibling_text": "values in ur ship", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "SFOC-003", "score": 0.5759413242340088, "sibling_score": 0.5759413242340088, "answer_score": null, "sibling_qid": "KOL-2018-01-1346-Q002", "sibling_text": "sfoc value in ur last ship", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What is the SFOC of your main engine? With BHP, stroke and cylinder oil consumption", "cross_family": true }, { "answer_id": "GM-META-003", "score": 0.5529353618621826, "sibling_score": 0.5529353618621826, "answer_score": null, "sibling_qid": "MUM-2024-12-2781-Q005", "sibling_text": "value of min gm for your ship", "sibling_family": "", "via": "sibling", "answer_title": "Finding the initial GM on board", "cross_family": false } ] }, { "qid": "CHE-2026-05-0597-Q014", "text": "Boiler safety valve setting?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "CHE-2026-05-0597", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-001", "score": 0.8651635050773621, "sibling_score": 0.8651635050773621, "answer_score": null, "sibling_qid": "CHE-2026-04-0500-Q005", "sibling_text": "boiler safety valve setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.8233604431152344, "sibling_score": 0.8233604431152344, "answer_score": null, "sibling_qid": "MUM-2026-03-2935-Q013", "sibling_text": "boiler safety valve setting in presence of surveyor after survey", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.8128390312194824, "sibling_score": 0.8128390312194824, "answer_score": null, "sibling_qid": "KOC-2026-05-0034-Q010", "sibling_text": "boiler safety valve types and how safety valve is set complete procedures", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "CHE-2026-05-0597-Q021", "text": "What is operating Pr, Testing Pr and design pr?", "family": "Electrical - Motors & Starters", "subtopic": "IR Test / Insulation Resistance", "tid": "CHE-2026-05-0597", "tray": "new", "candidates": [ { "answer_id": "PI-211-003", "score": 0.4733750820159912, "sibling_score": 0.4733750820159912, "answer_score": null, "sibling_qid": "KOL-2025-11-2914-Q001", "sibling_text": "ir test and pi test", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "PI versus insulation resistance, and why the 1-minute and 10-minute readings are compared", "cross_family": false }, { "answer_id": "IRT-C-007", "score": 0.4714551568031311, "sibling_score": 0.4714551568031311, "answer_score": null, "sibling_qid": "KOL-2024-06-2715-Q005", "sibling_text": "ir testing how what is the difference between pi test and ir test", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Polarization Index (PI) — and PI vs spot IR", "cross_family": false }, { "answer_id": "IRT-A-002", "score": 0.4650266766548157, "sibling_score": 0.4650266766548157, "answer_score": null, "sibling_qid": "KOC-2025-07-1547-Q006", "sibling_text": "ir testing", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Taking an IR test on a motor - isolation and procedure", "cross_family": false } ] }, { "qid": "CHE-2026-05-0598-Q002", "text": "How to order hydrants?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Vibration / Balancing", "tid": "CHE-2026-05-0598", "tray": "new", "candidates": [ { "answer_id": "FFF-A-003", "score": 0.4858144521713257, "sibling_score": 0.4858144521713257, "answer_score": 0.3738574802875519, "sibling_qid": "CHE-2025-08-0038-Q012", "sibling_text": "fire line components hydrants regulation what criteria decides no position location of hydrants and isolation valves not engine room accom valve", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fire main, hydrants, isolating and deck valves, and fire-line fittings", "cross_family": true }, { "answer_id": "FHD-616-003", "score": 0.48507964611053467, "sibling_score": 0.48507964611053467, "answer_score": 0.3629655927419662, "sibling_qid": "KOL-2026-02-1175-Q004", "sibling_text": "hydrants regulations as per solas", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Number and position of fire hydrants — engine room and deck, per SOLAS and on your ship", "cross_family": true }, { "answer_id": "PIPE-MAT-001", "score": 0.48418283462524414, "sibling_score": 0.48418283462524414, "answer_score": null, "sibling_qid": "KOL-2022-03-3524-Q005", "sibling_text": "how to order pipes", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Ordering / specifying a replacement or sea-water pipe", "cross_family": true } ] }, { "qid": "CHE-2026-05-0599-Q001", "text": "Explain fixed deck foam regulation?", "family": "SOLAS - Fire Safety", "subtopic": "Foam System / Monitor", "tid": "CHE-2026-05-0599", "tray": "review", "candidates": [ { "answer_id": "FOAM-P01-006", "score": 0.7749276757240295, "sibling_score": 0.7749276757240295, "answer_score": 0.4544702053070068, "sibling_qid": "CHE-2025-07-0011-Q001", "sibling_text": "explain fixed deck foam regulation", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "SOLAS / FSS requirements for fixed foam systems on deck/tankers (incl. the PFOS ban)", "cross_family": false }, { "answer_id": "FOAM-P02-001", "score": 0.7160561680793762, "sibling_score": 0.7160561680793762, "answer_score": 0.42848790884017945, "sibling_qid": "KOL-2023-01-0713-Q003", "sibling_text": "fixed foam system on deck which type of foam why low exp used meaning of expansion ratio", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Draw and explain the fixed deck foam firefighting system used on a tanker.", "cross_family": false }, { "answer_id": "FOAM-P01-005", "score": 0.707027018070221, "sibling_score": 0.707027018070221, "answer_score": 0.44819841384887693, "sibling_qid": "MUM-2026-05-3230-Q001", "sibling_text": "fixed firefighting for deck foam regulation and calculation", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Calculating foam quantity/capacity for a fixed deck foam system", "cross_family": false } ] }, { "qid": "CHE-2026-05-0599-Q007", "text": "⁠Lifeboat testing?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Lifeboat Static / Dynamic Test", "tid": "CHE-2026-05-0599", "tray": "review", "candidates": [ { "answer_id": "LBT-TEST-B-004", "score": 0.7396793961524963, "sibling_score": 0.7396793961524963, "answer_score": null, "sibling_qid": "CHE-2025-07-0011-Q007", "sibling_text": "lifeboat testing", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Tests carried out on the lifeboat/davit onboard (overview)", "cross_family": false }, { "answer_id": "LB-SDT-A-001", "score": 0.7329249978065491, "sibling_score": 0.7329249978065491, "answer_score": 0.48273997902870175, "sibling_qid": "KOC-2023-03-0168-Q009", "sibling_text": "tests on life boat n davit", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat static and dynamic test — purpose and procedure", "cross_family": false }, { "answer_id": "DRG-B-011", "score": 0.7260882258415222, "sibling_score": 0.7260882258415222, "answer_score": null, "sibling_qid": "KOL-2026-01-1163-Q002", "sibling_text": "lifeboat launching arrangement is working satisfactory how to test", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lowering mechanism — inspection and checks as 2/E", "cross_family": false } ] }, { "qid": "CHE-2026-05-0599-Q007S2", "text": "EEDI ? CII? Operational measures?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "EEDI / EEXI / CII / SEEMP", "tid": "CHE-2026-05-0599", "tray": "new", "candidates": [ { "answer_id": "EEDI-B-002", "score": 0.48863285779953003, "sibling_score": 0.48863285779953003, "answer_score": null, "sibling_qid": "MUM-2025-07-0357-Q007", "sibling_text": "maroon annex 6 eedi eexi units of eedi why it is done and what are the measures if attained eexi is more than desired", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Attained EEDI, required EEDI, reference line value and reduction factor", "cross_family": false }, { "answer_id": "CII-CALC-P03-001", "score": 0.4883233308792114, "sibling_score": 0.4883233308792114, "answer_score": null, "sibling_qid": "KOL-2024-08-0855-Q001", "sibling_text": "what is cii what is eedi diff between eedi and eexi calculation if eexi is more than required eedi what all actions to take how to improve cii and what is the benifit for ship owner to maintain high cii rating", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Calculating attained & required CII — formula, unit, reduction factor, measurements", "cross_family": false }, { "answer_id": "CII-107-P04-001", "score": 0.4835444390773773, "sibling_score": 0.4835444390773773, "answer_score": 0.33981308043003083, "sibling_qid": "KOL-2022-11-0702-Q004", "sibling_text": "eexi and cii details range in cii factors that improve eexi", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Improving the CII rating and cutting CO2 — what the 2/E actually does", "cross_family": false } ] }, { "qid": "CHE-2026-05-0600-Q001", "text": "Type of ships sailed?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2026-05-0600", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8048321604728699, "sibling_score": 0.8048321604728699, "answer_score": null, "sibling_qid": "MUM-2026-02-1272-Q002", "sibling_text": "type of ships sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7895894646644592, "sibling_score": 0.7895894646644592, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.769464910030365, "sibling_score": 0.769464910030365, "answer_score": 0.5077944159507751, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "CHE-2026-05-0600-Q003", "text": "Deck seal and cross questions?", "family": "Cargo Ops - Tankers", "subtopic": "Mast Riser / Deck Seal / P/V Valve", "tid": "CHE-2026-05-0600", "tray": "review", "candidates": [ { "answer_id": "MR-DS-PV-B-002", "score": 0.6841363310813904, "sibling_score": 0.6841363310813904, "answer_score": 0.3655914545059204, "sibling_qid": "MUM-2026-01-1251-Q013", "sibling_text": "types of deck seals explain each cross", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "2. Types, construction, and regulatory provisions of tanker deck seals", "cross_family": false }, { "answer_id": "MR-DS-PV-B-001", "score": 0.6296109557151794, "sibling_score": 0.6296109557151794, "answer_score": null, "sibling_qid": "KOC-2022-12-0118-Q004", "sibling_text": "deck seal function", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "1. Function and working principle of the tanker deck seal", "cross_family": false }, { "answer_id": "MR-DS-PV-B-003", "score": 0.5976198315620422, "sibling_score": 0.5976198315620422, "answer_score": null, "sibling_qid": "MUM-2022-11-0069-Q008", "sibling_text": "safety of deck seal", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "3. Alarms, trips, valves, and abnormal conditions of the deck seal", "cross_family": false } ] }, { "qid": "CHE-2026-05-0600-Q006", "text": "Garbage categories and cross?", "family": "Cargo Ops - Tankers", "subtopic": "P&A Manual", "tid": "CHE-2026-05-0600", "tray": "new", "candidates": [ { "answer_id": "GARB-261-004", "score": 0.5545439720153809, "sibling_score": 0.5545439720153809, "answer_score": null, "sibling_qid": "KOL-2024-08-0850-Q003", "sibling_text": "garbage management plan garbage categories about j and k categories", "sibling_family": "MARPOL - Annex V (Garbage)", "via": "sibling", "answer_title": "Garbage Management Plan and PSC / compliance checks", "cross_family": true }, { "answer_id": "A5-GARB-002", "score": 0.5431179404258728, "sibling_score": 0.5431179404258728, "answer_score": 0.4155982404947281, "sibling_qid": "KOL-2023-11-0787-Q006", "sibling_text": "types of garbage", "sibling_family": "MARPOL - Annex V (Garbage)", "via": "sibling", "answer_title": "Garbage categories and onboard segregation", "cross_family": true }, { "answer_id": "GARB-261-001", "score": 0.5340486764907837, "sibling_score": 0.5340486764907837, "answer_score": 0.3449337109923363, "sibling_qid": "KOL-2017-03-0076-Q003", "sibling_text": "garbage definition nd related rules", "sibling_family": "MARPOL - Annex V (Garbage)", "via": "sibling", "answer_title": "MARPOL Annex V — scope, definitions and the garbage categories", "cross_family": true } ] }, { "qid": "CHE-2026-05-0600-Q007", "text": "what is Fixed free board?", "family": "SOLAS - Fire Safety", "subtopic": "Fixed Firefighting", "tid": "CHE-2026-05-0600", "tray": "new", "candidates": [ { "answer_id": "LLC-P05-001", "score": 0.5785801410675049, "sibling_score": 0.5785801410675049, "answer_score": 0.31381675004959103, "sibling_qid": "CHE-2026-05-0535-Q008", "sibling_text": "fixed freeboard", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Freeboard, deck line, Plimsoll mark, assignment and scantling draft", "cross_family": true }, { "answer_id": "LL-CONV-P04-002", "score": 0.5613863468170166, "sibling_score": 0.5613863468170166, "answer_score": null, "sibling_qid": "KOL-2024-11-0880-Q001", "sibling_text": "free board purpose", "sibling_family": "", "via": "sibling", "answer_title": "Load Line Convention, certificates, assigning authority and detention risk", "cross_family": false }, { "answer_id": "FOAM-P02-001", "score": 0.5167185068130493, "sibling_score": 0.5167185068130493, "answer_score": null, "sibling_qid": "KOL-2018-12-0238-Q004", "sibling_text": "fixed foam deck foam", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Draw and explain the fixed deck foam firefighting system used on a tanker.", "cross_family": false } ] }, { "qid": "CHE-2026-05-0601-Q001", "text": "ME specs?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "CHE-2026-05-0601", "tray": "new", "candidates": [ { "answer_id": "AEME-DIFF-001", "score": 0.4866529107093811, "sibling_score": 0.4866529107093811, "answer_score": null, "sibling_qid": "MUM-2024-09-2770-Q002", "sibling_text": "me ae type and specs", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": true }, { "answer_id": "MEGI-304-002", "score": 0.44148749113082886, "sibling_score": 0.44148749113082886, "answer_score": null, "sibling_qid": "KOL-2026-01-2036-Q001", "sibling_text": "what is me g", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "2. ME-GI / ME-GA / ME-G and recent dual-fuel engine advancements", "cross_family": true }, { "answer_id": "MCC-MEB-P02-003", "score": 0.4189419746398926, "sibling_score": 0.4189419746398926, "answer_score": null, "sibling_qid": "KOL-2026-05-4192-Q006", "sibling_text": "me engine describe", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Conventional MC / MC-C versus electronic ME — the practical operating differences", "cross_family": true } ] }, { "qid": "CHE-2026-05-0601-Q012", "text": "Globe valve checks and o'haul? Deciding by internal:", "family": "Workshop & Welding", "subtopic": "Pipe Fabrication", "tid": "CHE-2026-05-0601", "tray": "new", "candidates": [ { "answer_id": "GV-330-002", "score": 0.556398868560791, "sibling_score": 0.556398868560791, "answer_score": 0.3976953744888306, "sibling_qid": "CHE-2026-03-0487-Q003", "sibling_text": "globe valve testing and wht are the checks u do", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Gate valve overhaul, checks & the stuck / not-operating valve", "cross_family": true }, { "answer_id": "GV-330-001", "score": 0.5023387670516968, "sibling_score": 0.5023387670516968, "answer_score": null, "sibling_qid": "CHE-2026-09-3912-Q006", "sibling_text": "what are the different types of globe valves which type is used where and reasons", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Draw and explain the gate valve — construction, main parts, operation & onboard use", "cross_family": true }, { "answer_id": "SDNR-SDR-001", "score": 0.4869943857192993, "sibling_score": 0.4869943857192993, "answer_score": 0.3892340138554573, "sibling_qid": "KOL-2026-07-4285-Q006", "sibling_text": "globe valve disadvantage", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "SDNR versus a plain globe valve -- telling them apart from outside, and the drawbacks of each", "cross_family": true } ] }, { "qid": "CHE-2026-05-0601-Q013", "text": "Constructional difference b/w AE n ME governor and working?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE vs ME Differences", "tid": "CHE-2026-05-0601", "tray": "new", "candidates": [ { "answer_id": "GOV-082-P01-003", "score": 0.5944525003433228, "sibling_score": 0.5944525003433228, "answer_score": null, "sibling_qid": "MUM-2026-05-3209-Q004", "sibling_text": "me and ae governor difference", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Difference between main-engine and auxiliary-engine governors (and why)", "cross_family": true }, { "answer_id": "GOV-082-P01-007", "score": 0.5528843402862549, "sibling_score": 0.5528843402862549, "answer_score": 0.35425027906894685, "sibling_qid": "KOL-2023-07-1747-Q004", "sibling_text": "me governor working construction", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Main-engine governor — construction and working (draw and explain)", "cross_family": true }, { "answer_id": "AEME-DIFF-001", "score": 0.5308008790016174, "sibling_score": 0.5308008790016174, "answer_score": null, "sibling_qid": "MUM-2026-06-3649-Q001", "sibling_text": "me ae construction difference", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false } ] }, { "qid": "CHE-2026-05-0601-Q014", "text": "Control air dryer working?", "family": "Auxiliary Equipment", "subtopic": "General Auxiliary Machinery", "tid": "CHE-2026-05-0601", "tray": "new", "candidates": [ { "answer_id": "CAP-CTRL-001", "score": 0.5147639513015747, "sibling_score": 0.5147639513015747, "answer_score": null, "sibling_qid": "MUM-2026-02-1266-Q004", "sibling_text": "capacity control in ac why working", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "CG-001 · Capacity control in an AC / refrigeration compressor — why and how", "cross_family": true }, { "answer_id": "PURIF-BOWL-P02-001", "score": 0.5101186633110046, "sibling_score": 0.5101186633110046, "answer_score": null, "sibling_qid": "KOL-2025-10-2015-Q008", "sibling_text": "purifier starting in manual mode electronic pneumatic and hydraulic controller used in er with examples of each controller where used", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Bowl opening, closing & manual desludging — mechanism, manual operation, failure causes", "cross_family": true }, { "answer_id": "ACJCW-002", "score": 0.5095426440238953, "sibling_score": 0.5095426440238953, "answer_score": 0.44456580877304075, "sibling_qid": "KOL-2018-08-3169-Q007", "sibling_text": "how will you control air cooler temp why not by inlet valve", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Maintaining air-cooler outlet temperature and which valve to throttle", "cross_family": true } ] }, { "qid": "CHE-2026-05-0603-Q017", "text": "Type of ship ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2026-05-0603", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8360850214958191, "sibling_score": 0.8360850214958191, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8013965487480164, "sibling_score": 0.8013965487480164, "answer_score": 0.5467735856771468, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.799839973449707, "sibling_score": 0.799839973449707, "answer_score": 0.5213733673095703, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "CHE-2026-05-0603-Q024", "text": "Is there a relation between heat and resistance ? To allow thermal expansion of piston rod and ring wear, please correct me if I am wrong. Easy to fix and dismantle they are in segments because even if they wear down they provide good sealing with the piston rod surface Function 4 deciding. Difference between primary and secondary explosion in crack case.", "family": "2-Stroke - Components (Other)", "subtopic": "Piston Rod / Ring Wear", "tid": "CHE-2026-05-0603", "tray": "review", "candidates": [ { "answer_id": "PRING-B-006", "score": 0.6919538974761963, "sibling_score": 0.6919538974761963, "answer_score": null, "sibling_qid": "KOL-2023-05-3612-Q005", "sibling_text": "piston ring break cannot change state precautions", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "General oral questions", "cross_family": false }, { "answer_id": "PRING-CLR-A-002", "score": 0.6814414858818054, "sibling_score": 0.6814414858818054, "answer_score": null, "sibling_qid": "KOL-2017-07-3075-Q005", "sibling_text": "piston ring clearances limits of wear down expander of how", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston-ring clearances and calibration — butt, axial, radial, wear limits", "cross_family": false }, { "answer_id": "PRING-B-005", "score": 0.6619600653648376, "sibling_score": 0.6619600653648376, "answer_score": null, "sibling_qid": "MUM-2024-02-2759-Q005", "sibling_text": "modifications in piston rings", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Running-in & latest developments", "cross_family": false } ] }, { "qid": "CHE-2026-05-0605-Q001", "text": "ME specification?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "CHE-2026-05-0605", "tray": "new", "candidates": [ { "answer_id": "AEME-DIFF-001", "score": 0.5988315343856812, "sibling_score": 0.5988315343856812, "answer_score": null, "sibling_qid": "MUM-2024-09-2770-Q002", "sibling_text": "me ae type and specs", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": true }, { "answer_id": "ENG-NOM-001", "score": 0.5529836416244507, "sibling_score": 0.5529836416244507, "answer_score": 0.33737041950225827, "sibling_qid": "MUM-2026-06-3420-Q002", "sibling_text": "nomenclature of me ae explain full", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Nomenclature of ME and AE (asked together)", "cross_family": false }, { "answer_id": "MEGI-304-002", "score": 0.5322855710983276, "sibling_score": 0.5322855710983276, "answer_score": null, "sibling_qid": "KOL-2026-01-2036-Q001", "sibling_text": "what is me g", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "2. ME-GI / ME-GA / ME-G and recent dual-fuel engine advancements", "cross_family": true } ] }, { "qid": "CHE-2026-05-0605-Q002", "text": "How liner is lubricated , then asked about alpha lubricator?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Cylinder Lubrication", "tid": "CHE-2026-05-0605", "tray": "review", "candidates": [ { "answer_id": "CYL-LUB-A-001", "score": 0.6662690043449402, "sibling_score": 0.6662690043449402, "answer_score": null, "sibling_qid": "CHE-2025-08-0283-Q010", "sibling_text": "cross how liner is lubricated then asked about alpha lubricator tc types and how bearing lubricated", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Cylinder lubrication — how it is carried out and its purpose", "cross_family": false }, { "answer_id": "ALPHA-LUB-A-001", "score": 0.6512519717216492, "sibling_score": 0.6512519717216492, "answer_score": 0.4460325300693512, "sibling_qid": "KOC-2024-10-2055-Q007", "sibling_text": "alpha lubricator explain", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Alpha lubricator — working principle and full system", "cross_family": false }, { "answer_id": "ALPHA-LUB-B-003", "score": 0.6494258046150208, "sibling_score": 0.6494258046150208, "answer_score": 0.4302631735801697, "sibling_qid": "MUM-2026-06-3601-Q003", "sibling_text": "alpha lubricator working", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Alpha lubricator — components, accumulator, solenoids and pressures", "cross_family": false } ] }, { "qid": "CHE-2026-05-0605-Q007", "text": "how do you cut out fuel ?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "", "tid": "CHE-2026-05-0605", "tray": "review", "candidates": [ { "answer_id": "COS343-002", "score": 0.6562692523002625, "sibling_score": 0.6562692523002625, "answer_score": 0.4911150336265564, "sibling_qid": "CHE-2025-08-0283-Q014", "sibling_text": "cross moorthy sir deciding how do you cut out fuel what s your action during", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How do you cut off / cut out one main-engine fuel pump (unit)?", "cross_family": false }, { "answer_id": "VIT-MECH-C-001", "score": 0.6249988675117493, "sibling_score": 0.6249988675117493, "answer_score": null, "sibling_qid": "CHE-2025-10-0515-Q002", "sibling_text": "when you cutoff fuel in particular unit vit you need to do some precautions what manual says did you read manual", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "MAN B&W MC VIT — varying the start of injection on a helix pump", "cross_family": false }, { "answer_id": "AEFP-471-007", "score": 0.6053710579872131, "sibling_score": 0.6053710579872131, "answer_score": 0.4929406076669693, "sibling_qid": "KOL-2025-07-3840-Q003", "sibling_text": "how do you cut off fuel pump in aux engines", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How do you cut off the fuel pump in an auxiliary engine?", "cross_family": false } ] }, { "qid": "CHE-2026-05-0606-Q001", "text": "What type of ship?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2026-05-0606", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.816957414150238, "sibling_score": 0.816957414150238, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.7905704379081726, "sibling_score": 0.7905704379081726, "answer_score": 0.5098951458930969, "sibling_qid": "MUM-2026-02-0731-Q002", "sibling_text": "what type of ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7817984223365784, "sibling_score": 0.7817984223365784, "answer_score": 0.5349258720874787, "sibling_qid": "KOC-2026-09-2198-Q001", "sibling_text": "type a and b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "CHE-2026-05-0606-Q010", "text": "Float sensor type?", "family": "OTHER TOPICS", "subtopic": "", "tid": "CHE-2026-05-0606", "tray": "new", "candidates": [ { "answer_id": "TPL-SENS-006", "score": 0.5845524072647095, "sibling_score": 0.5845524072647095, "answer_score": 0.4892257750034332, "sibling_qid": "CHE-2025-08-0283-Q005", "sibling_text": "cross float sensor type cascade control system internal deciding", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Float-type level sensors — types and working", "cross_family": true }, { "answer_id": "DP-TX-004", "score": 0.5422494411468506, "sibling_score": 0.5422494411468506, "answer_score": null, "sibling_qid": "KOC-2024-11-1437-Q006", "sibling_text": "dp flow sensor", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Differential-pressure flowmeter — principle, types and square-root extraction", "cross_family": true }, { "answer_id": "TPL-SENS-B-002", "score": 0.532789945602417, "sibling_score": 0.532789945602417, "answer_score": null, "sibling_qid": "KOL-2018-01-2171-Q004", "sibling_text": "sensor", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Sensors, transducers & transmitters — and why 4–20 mA", "cross_family": true } ] }, { "qid": "CHE-2026-05-0606-Q013", "text": "Extrincically safe equipment on deck how much current safe current.", "family": "Cargo Ops - Tankers", "subtopic": "Tanker Safety / Deck", "tid": "CHE-2026-05-0606", "tray": "new", "candidates": [ { "answer_id": "HAZ-EX-B-001", "score": 0.6329375505447388, "sibling_score": 0.6329375505447388, "answer_score": null, "sibling_qid": "KOC-2023-12-1312-Q016", "sibling_text": "paul sir intrinsically safe equipments onboard and mention voltage and current", "sibling_family": "", "via": "sibling", "answer_title": "Intrinsically safe (Ex i) equipment — what it is, how it works, where it is used, how you identify it", "cross_family": false }, { "answer_id": "TNK-SAFE-BF26-003", "score": 0.6206806302070618, "sibling_score": 0.6206806302070618, "answer_score": 0.4800395905971527, "sibling_qid": "MUM-2026-01-1911-Q002", "sibling_text": "electrical safeties on deck of tanker", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What safeties, including electrical safeties and Ex ratings, are provided on the deck of a tanker?", "cross_family": false }, { "answer_id": "WCM-P02-001", "score": 0.6084734201431274, "sibling_score": 0.6084734201431274, "answer_score": 0.4660960614681244, "sibling_qid": "MUM-2026-06-3651-Q006", "sibling_text": "deck electrical safeties", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Safeties and trips on ship's cranes (deck, cargo, provision, engine-room)", "cross_family": true } ] }, { "qid": "CHE-2026-05-0607-Q005", "text": "Stay tubes placement?", "family": "Boilers - Construction & Components", "subtopic": "Boiler Tubes", "tid": "CHE-2026-05-0607", "tray": "new", "candidates": [ { "answer_id": "BLR-TUBE-P01-002", "score": 0.5580533146858215, "sibling_score": 0.5580533146858215, "answer_score": null, "sibling_qid": "CHE-2026-05-0614-Q005", "sibling_text": "stay tubes in boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "03. Types, functions and arrangement of boiler tubes", "cross_family": false }, { "answer_id": "SH-332-002", "score": 0.5055500268936157, "sibling_score": 0.5055500268936157, "answer_score": null, "sibling_qid": "MUM-2024-07-0960-Q007", "sibling_text": "sh tubes expansion arrangement", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Where superheater tubes are fitted; attachment, support and expansion", "cross_family": false }, { "answer_id": "STS-P02-003", "score": 0.46360689401626587, "sibling_score": 0.46360689401626587, "answer_score": null, "sibling_qid": "KOL-2019-03-0267-Q003", "sibling_text": "stern tube how fitted arrangements", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "STS-P02-03 - Stern tube arrangement, fitting in hull and shaft support", "cross_family": true } ] }, { "qid": "CHE-2026-05-0607-Q010", "text": "air removal from refer system.pressure gauge type?", "family": "Refrigeration & AC", "subtopic": "Air in System", "tid": "CHE-2026-05-0607", "tray": "review", "candidates": [ { "answer_id": "AIR-REF-004", "score": 0.7024577260017395, "sibling_score": 0.7024577260017395, "answer_score": null, "sibling_qid": "MUM-2026-06-3471-Q003", "sibling_text": "refer air indication purging", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "4. Detecting and purging air from a refrigeration system", "cross_family": false }, { "answer_id": "AIR-REF-001", "score": 0.6847420930862427, "sibling_score": 0.6847420930862427, "answer_score": null, "sibling_qid": "MUM-2024-09-2241-Q003", "sibling_text": "air in refer indication and removal", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "1. Indications that air is present in a refrigeration system", "cross_family": false }, { "answer_id": "AIR-REF-002", "score": 0.6641819477081299, "sibling_score": 0.6641819477081299, "answer_score": null, "sibling_qid": "MUM-2026-05-3257-Q004", "sibling_text": "indications of air in ref system", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "2. How air enters a refrigeration system", "cross_family": false } ] }, { "qid": "CHE-2026-05-0608-Q007", "text": "Double bottom tank regulation, how it is constructed, and how it is strengthened ?", "family": "SOLAS - Fire Safety", "subtopic": "", "tid": "CHE-2026-05-0608", "tray": "new", "candidates": [ { "answer_id": "DBTB-A-002", "score": 0.6056575775146484, "sibling_score": 0.6056575775146484, "answer_score": 0.4532593876123428, "sibling_qid": "MUM-2024-10-0214-Q003", "sibling_text": "construction of double bottom tank", "sibling_family": "", "via": "sibling", "answer_title": "Double-bottom tanks: purpose, advantages, disadvantages and stability effect", "cross_family": false }, { "answer_id": "COT-09", "score": 0.5810850858688354, "sibling_score": 0.5810850858688354, "answer_score": 0.47510380744934083, "sibling_qid": "MUM-2026-09-3920-Q005", "sibling_text": "double bottom tank construction and it s info in stability book", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Ballast-tank construction", "cross_family": true }, { "answer_id": "DBTB-A-001", "score": 0.5407296419143677, "sibling_score": 0.5407296419143677, "answer_score": 0.5140006482601166, "sibling_qid": "CHE-2026-02-0107-Q003", "sibling_text": "double bottom construction", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Double-bottom construction and the structural members fitted", "cross_family": true } ] }, { "qid": "CHE-2026-05-0608-Q009", "text": "Management Committee on-board why it is , who are all the members? PO", "family": "IMO Structure & Conventions", "subtopic": "", "tid": "CHE-2026-05-0608", "tray": "new", "candidates": [ { "answer_id": "IMO-CC-P01-001", "score": 0.5368763208389282, "sibling_score": 0.5368763208389282, "answer_score": 0.3298067986965179, "sibling_qid": "KOL-2026-07-4278-Q005", "sibling_text": "imo structure all names of committee and sub committee srinivasan decider", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Explain the structure and organs of IMO — Assembly, Council, Committees and Secretariat.", "cross_family": false }, { "answer_id": "IMO-CODES-P03-002", "score": 0.5119319558143616, "sibling_score": 0.5119319558143616, "answer_score": 0.32489862740039827, "sibling_qid": "KOL-2017-01-0050-Q002", "sibling_text": "imo committees", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": false }, { "answer_id": "IMO-CC-P01-003", "score": 0.4998380243778229, "sibling_score": 0.4998380243778229, "answer_score": 0.31710808277130126, "sibling_qid": "KOL-2024-12-0899-Q004", "sibling_text": "function of each committee", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Name the IMO Committees and Sub-Committees (MSC, MEPC, FAL …) and state their functions.", "cross_family": false } ] }, { "qid": "CHE-2026-05-0608-Q014", "text": "P&I Club, why is it there?", "family": "Marine Insurance", "subtopic": "", "tid": "CHE-2026-05-0608", "tray": "new", "candidates": [ { "answer_id": "CLC-CIV-B-004", "score": 0.5695893168449402, "sibling_score": 0.5695893168449402, "answer_score": 0.20074619203805924, "sibling_qid": "KOL-2018-09-0220-Q004", "sibling_text": "p i club functioning purpose what all things it covers", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Marine insurance and the P&I club: hull cover vs liability cover", "cross_family": true }, { "answer_id": "PI-211-003", "score": 0.3748757541179657, "sibling_score": 0.3748757541179657, "answer_score": null, "sibling_qid": "KOL-2024-11-2747-Q002", "sibling_text": "pi index why do we require it", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "PI versus insulation resistance, and why the 1-minute and 10-minute readings are compared", "cross_family": true }, { "answer_id": "PI-211-001", "score": 0.37199902534484863, "sibling_score": 0.37199902534484863, "answer_score": null, "sibling_qid": "KOL-2023-05-2659-Q001", "sibling_text": "pi why checked", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What polarization index is, why we use it, and the value expected", "cross_family": true } ] }, { "qid": "CHE-2026-05-0608-Q015", "text": "OCIMF why and  how they function?", "family": "Tanker - Cargo Systems", "subtopic": "", "tid": "CHE-2026-05-0608", "tray": "new", "candidates": [ { "answer_id": "OWS-15PPM-003", "score": 0.36950546503067017, "sibling_score": 0.36950546503067017, "answer_score": null, "sibling_qid": "KOL-2025-03-2766-Q007", "sibling_text": "ocm working principle", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": true }, { "answer_id": "OMD-003", "score": 0.32481902837753296, "sibling_score": 0.32481902837753296, "answer_score": 0.23200696259737014, "sibling_qid": "MUM-2025-10-1199-Q007", "sibling_text": "working principle of omd", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Explain the OMD working principle, its types and their differences, the electrical side, and zero setting and calibration.", "cross_family": true }, { "answer_id": "IMO-CODES-P03-002", "score": 0.31942373514175415, "sibling_score": 0.31942373514175415, "answer_score": null, "sibling_qid": "KOL-2019-08-0319-Q002", "sibling_text": "function of imo assembly", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": true } ] }, { "qid": "CHE-2026-05-0609-Q010", "text": "Which VESSEL Did u work ME engine ( i said no) Ok tell me about ME engine", "family": "2-Stroke - ME-C / Electronic Engine", "subtopic": "", "tid": "CHE-2026-05-0609", "tray": "new", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.5983030200004578, "sibling_score": 0.5983030200004578, "answer_score": null, "sibling_qid": "CHE-2026-02-0247-Q001", "sibling_text": "what type of engine vessel", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": true }, { "answer_id": "ETP-344-P01-001", "score": 0.5953519344329834, "sibling_score": 0.5953519344329834, "answer_score": null, "sibling_qid": "CHE-2026-09-3912-Q001", "sibling_text": "what was the power of your last ship s engine tell me about your last ship main engine what are all the details about it mentioned in the first page of your engine manual tell me everything", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": true }, { "answer_id": "MCC-MEB-P02-003", "score": 0.589102029800415, "sibling_score": 0.589102029800415, "answer_score": null, "sibling_qid": "MUM-2024-07-1084-Q004", "sibling_text": "me engine tha", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Conventional MC / MC-C versus electronic ME — the practical operating differences", "cross_family": true } ] }, { "qid": "CHE-2026-05-0609-Q011", "text": "me engine Tri biology", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "", "tid": "CHE-2026-05-0609", "tray": "new", "candidates": [ { "answer_id": "MCC-MEB-P02-003", "score": 0.4447636008262634, "sibling_score": 0.4447636008262634, "answer_score": null, "sibling_qid": "MUM-2023-08-1053-Q001", "sibling_text": "me engines basics", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Conventional MC / MC-C versus electronic ME — the practical operating differences", "cross_family": true }, { "answer_id": "VIT-MECH-C-003", "score": 0.43878400325775146, "sibling_score": 0.43878400325775146, "answer_score": 0.3356524810194969, "sibling_qid": "KOC-2026-05-0003-Q001", "sibling_text": "vit functions in me engine", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "ME & electronic engines — timing without a VIT mechanism", "cross_family": true }, { "answer_id": "ENG-NOM-006", "score": 0.43647804856300354, "sibling_score": 0.43647804856300354, "answer_score": null, "sibling_qid": "MUM-2026-04-2104-Q008S2", "sibling_text": "engine spec me b function", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Short-form asks: SMC-C, LMC, and ME vs MC quickly", "cross_family": true } ] }, { "qid": "CHE-2026-05-0610-Q002", "text": "wat all to check & clearances?", "family": "2-Stroke - Exhaust, Valve & Starting Air", "subtopic": "", "tid": "CHE-2026-05-0610", "tray": "new", "candidates": [ { "answer_id": "DDHSC-002", "score": 0.5895823240280151, "sibling_score": 0.5895823240280151, "answer_score": null, "sibling_qid": "MUM-2026-10-4001-Q007", "sibling_text": "clearances", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Explain the underwater hull inspection and checks carried out as Second Engineer during drydock.", "cross_family": true }, { "answer_id": "BCL-592-002", "score": 0.570181131362915, "sibling_score": 0.570181131362915, "answer_score": null, "sibling_qid": "KOC-2021-05-0938-Q002", "sibling_text": "how to take all clearances", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Take me through all the clearances you measure on the main engine and how you take each one.", "cross_family": true }, { "answer_id": "TC-KLM-330-001", "score": 0.5522686243057251, "sibling_score": 0.5522686243057251, "answer_score": null, "sibling_qid": "MUM-2026-03-2638-Q005", "sibling_text": "clearances to be taken in tc", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "What are turbocharger K, L and M clearances, and how is each one derived?", "cross_family": true } ] }, { "qid": "CHE-2026-05-0610-Q004", "text": "bottom end bearing clearance how to take fuel pump timing how to do in ae?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Decarb Checks / Connecting Rod / Bottom End Bearing", "tid": "CHE-2026-05-0610", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-007", "score": 0.699543297290802, "sibling_score": 0.699543297290802, "answer_score": null, "sibling_qid": "MUM-2026-05-3280-Q003", "sibling_text": "how to take bottom end bearing clearance of ae", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE big-end / bottom-end bearing — inspection, bedding, nip and crush", "cross_family": false }, { "answer_id": "AECR-651-004", "score": 0.6929247379302979, "sibling_score": 0.6929247379302979, "answer_score": 0.522409850358963, "sibling_qid": "MUM-2026-05-3226-Q001", "sibling_text": "how will you take the bottom end bearing clearance of ae without removing bearing", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "How do you inspect the bottom-end bearing, and how do you take the AE big-end clearance without removing it?", "cross_family": false }, { "answer_id": "FCL-P03-001", "score": 0.6845415830612183, "sibling_score": 0.6845415830612183, "answer_score": 0.5688658028841018, "sibling_qid": "CHE-2026-05-0551-Q007", "sibling_text": "ae fuel pump timing check", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE / auxiliary-engine fuel pump timing check and adjustment", "cross_family": false } ] }, { "qid": "CHE-2026-05-0610-Q006", "text": "what ship ?", "family": "Status & Introduction", "subtopic": "", "tid": "CHE-2026-05-0610", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.7547052502632141, "sibling_score": 0.7547052502632141, "answer_score": null, "sibling_qid": "CHE-2026-04-0169-Q002", "sibling_text": "what type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.7345976233482361, "sibling_score": 0.7345976233482361, "answer_score": null, "sibling_qid": "MUM-2026-02-0731-Q002", "sibling_text": "what type of ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.7226490378379822, "sibling_score": 0.7226490378379822, "answer_score": null, "sibling_qid": "MUM-2026-04-2096-Q001", "sibling_text": "what type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false } ] }, { "qid": "CHE-2026-05-0610-Q007", "text": "bulk carrier if cargo bilges are not going what is your action?", "family": "Cargo Ops - Bulk Carriers", "subtopic": "Bulk Carrier / IMSBC", "tid": "CHE-2026-05-0610", "tray": "review", "candidates": [ { "answer_id": "BC-IMSBC-002", "score": 0.6674550175666809, "sibling_score": 0.6674550175666809, "answer_score": null, "sibling_qid": "MUM-2022-10-0061-Q002", "sibling_text": "req for bilges alarms in bulk carriers", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "2. Bulk carrier construction and structural design", "cross_family": false }, { "answer_id": "LTK-386-006", "score": 0.6534571051597595, "sibling_score": 0.6534571051597595, "answer_score": null, "sibling_qid": "KOC-2026-01-0785-Q005", "sibling_text": "cargo tk leaking into ballast tank flooding indication actions", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "How can cargo leakage be identified or suspected from tank/containment indications?", "cross_family": true }, { "answer_id": "OWS-15PPM-005", "score": 0.6512976884841919, "sibling_score": 0.6512976884841919, "answer_score": 0.524846938252449, "sibling_qid": "KOL-2019-05-0283-Q005", "sibling_text": "if ows is not working bilges raising in the engine room actions as 2 e cleared class 2 thanks tobthe group", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": true } ] }, { "qid": "CHE-2026-05-0612-Q006", "text": "Psc and flag state?", "family": "Surveys - Statutory", "subtopic": "Flag State", "tid": "CHE-2026-05-0612", "tray": "review", "candidates": [ { "answer_id": "FLAG-ST-003", "score": 0.7041208148002625, "sibling_score": 0.7041208148002625, "answer_score": 0.30735922455787656, "sibling_qid": "KOC-2025-03-0556-Q005", "sibling_text": "psc and flag state difference", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Flag state vs port state / PSC / PSI vs class vs coastal state", "cross_family": false }, { "answer_id": "PSC-SURV-P01-004", "score": 0.6097441911697388, "sibling_score": 0.6097441911697388, "answer_score": null, "sibling_qid": "KOL-2025-01-0914-Q006", "sibling_text": "psc flag state coastal state", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the difference between flag State, port State and coastal State control?", "cross_family": false }, { "answer_id": "FLAG-ST-001", "score": 0.5965792536735535, "sibling_score": 0.5965792536735535, "answer_score": null, "sibling_qid": "MUM-2025-11-0607-Q004", "sibling_text": "flag state", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Flag State — authority, role, duties and requirements", "cross_family": false } ] }, { "qid": "CHE-2026-05-0612-Q011", "text": "Hypermist why above boiler me ae inci not in entire engine room?", "family": "SOLAS - Fire Safety", "subtopic": "Sprinkler / Water Mist / Hi-Fog", "tid": "CHE-2026-05-0612", "tray": "review", "candidates": [ { "answer_id": "FIRE-P01-04", "score": 0.678584098815918, "sibling_score": 0.678584098815918, "answer_score": 0.5110834181308747, "sibling_qid": "MUM-2024-09-0210-Q004", "sibling_text": "why hypermist system not for entire engine room", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist — protected areas, machinery coverage, and why it is not whole-engine-room flooding", "cross_family": false }, { "answer_id": "COT-P02-03", "score": 0.6177151203155518, "sibling_score": 0.6177151203155518, "answer_score": null, "sibling_qid": "KOL-2019-10-1492-Q012", "sibling_text": "ig why taken from boiler not from main engine", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Compare a boiler-flue inert-gas system with a dedicated inert-gas generator and explain why suitable boiler flue gas—not main-engine exhaust—is normally used.", "cross_family": true }, { "answer_id": "FIRE-P02-04", "score": 0.6173115372657776, "sibling_score": 0.6173115372657776, "answer_score": null, "sibling_qid": "CHE-2026-09-3917-Q005", "sibling_text": "hyper mist vs sprinkler why sprinkler is not used in engine room", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist vs sprinkler and CO₂ — comparison and coexistence", "cross_family": false } ] }, { "qid": "CHE-2026-05-0613-Q003", "text": "MGPS working and and it's flow rate, incase flow increase and decrease what effect will take place and maintence on MGPS?", "family": "Electrical - ICCP & Cathodic Protection", "subtopic": "MGPS", "tid": "CHE-2026-05-0613", "tray": "new", "candidates": [ { "answer_id": "MGPS-001", "score": 0.5907433032989502, "sibling_score": 0.5907433032989502, "answer_score": null, "sibling_qid": "MUM-2025-12-1839-Q002", "sibling_text": "mgps working", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "Explain the MGPS — purpose, working principle, layout, and how it prevents marine growth", "cross_family": false }, { "answer_id": "MGPS-004", "score": 0.5906416773796082, "sibling_score": 0.5906416773796082, "answer_score": null, "sibling_qid": "KOL-2018-08-1861-Q010", "sibling_text": "maintenance on mgps", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "Maintenance checks on the MGPS, and what the MGPS drawing should show", "cross_family": false }, { "answer_id": "MGPS-003", "score": 0.5703269243240356, "sibling_score": 0.5703269243240356, "answer_score": null, "sibling_qid": "KOL-2018-11-2234-Q002", "sibling_text": "mgps working current value", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "MGPS electrical values — current, voltage / reference value, and the factors affecting them", "cross_family": false } ] }, { "qid": "CHE-2026-05-0613-Q006", "text": "what is safety provided for water hammering and working of steam trap?", "family": "Boilers - Construction & Components", "subtopic": "Steam Trap", "tid": "CHE-2026-05-0613", "tray": "new", "candidates": [ { "answer_id": "STM-TRAP-004", "score": 0.6042119860649109, "sibling_score": 0.6042119860649109, "answer_score": 0.4253403604030609, "sibling_qid": "KOC-2026-09-2219-Q006", "sibling_text": "steam trap working", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "How to verify a steam trap is working correctly", "cross_family": false }, { "answer_id": "STM-TRAP-001", "score": 0.5797589421272278, "sibling_score": 0.5797589421272278, "answer_score": 0.4527035027742386, "sibling_qid": "KOL-2018-02-1352-Q003", "sibling_text": "steam traps types working why fitted where fitted", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Types of steam trap, how they work, why and where fitted", "cross_family": false }, { "answer_id": "STM-TRAP-002", "score": 0.5512930154800415, "sibling_score": 0.5512930154800415, "answer_score": null, "sibling_qid": "KOC-2023-10-0985-Q015", "sibling_text": "draw steam trap and how steam is prevented to pass", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Thermodynamic (disc) trap — construction, working, and how steam is held back", "cross_family": false } ] }, { "qid": "CHE-2026-05-0614-Q003", "text": "why we are have separate dosing pump?", "family": "Cargo Ops - Tankers", "subtopic": "Tank Cleaning / TCM", "tid": "CHE-2026-05-0614", "tray": "new", "candidates": [ { "answer_id": "CPFE-583-004", "score": 0.5420089960098267, "sibling_score": 0.5420089960098267, "answer_score": null, "sibling_qid": "MUM-2026-01-2533-Q002", "sibling_text": "framo room why u have 4 pumps all pumps are not required all times u only need 3 pumps then why they given 4 pumps", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "The powerpack — starting preconditions, and why more pumps than you need", "cross_family": false }, { "answer_id": "BLR-CHEM-003", "score": 0.5258998274803162, "sibling_score": 0.5258998274803162, "answer_score": null, "sibling_qid": "MUM-2022-04-0938-Q006", "sibling_text": "why continuous dosing of chemical", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "3. Boiler chemical dosing programme", "cross_family": true }, { "answer_id": "PUMPRM-B-002", "score": 0.5071974992752075, "sibling_score": 0.5071974992752075, "answer_score": null, "sibling_qid": "MUM-2024-09-0208-Q006", "sibling_text": "room how it is separated at pump", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Pump-room regulatory and construction requirements", "cross_family": false } ] }, { "qid": "CHE-2026-05-0614-Q004", "text": "Why we are not adding chemical in casacade tank?", "family": "SOLAS - Fire Safety", "subtopic": "DCP / Dry Powder", "tid": "CHE-2026-05-0614", "tray": "new", "candidates": [ { "answer_id": "BWT-B-002", "score": 0.5161400437355042, "sibling_score": 0.5161400437355042, "answer_score": null, "sibling_qid": "KOL-2019-07-1460-Q003", "sibling_text": "boiler water phosphate reserve why add chemical coagulant etc etc etc", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Why is phosphate tested and maintained in boiler water, and what does phosphate hideout indicate?", "cross_family": true }, { "answer_id": "DCP-FIXED-A-004", "score": 0.5098507404327393, "sibling_score": 0.5098507404327393, "answer_score": null, "sibling_qid": "KOC-2025-07-0633-Q040", "sibling_text": "why dry chemical for deck", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Why DCP on gas carriers, not foam/water/CO2, and the extinguishing principle", "cross_family": false }, { "answer_id": "BLR-CHEM-003", "score": 0.49060332775115967, "sibling_score": 0.49060332775115967, "answer_score": null, "sibling_qid": "MUM-2022-04-0938-Q006", "sibling_text": "why continuous dosing of chemical", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "3. Boiler chemical dosing programme", "cross_family": true } ] }, { "qid": "CHE-2026-05-0614-Q006", "text": "Load acting on holding down bolts?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Holding Down Bolts", "tid": "CHE-2026-05-0614", "tray": "review", "candidates": [ { "answer_id": "TR-TB-PA-006", "score": 0.6676762700080872, "sibling_score": 0.6676762700080872, "answer_score": null, "sibling_qid": "MUM-2026-09-3906-Q003", "sibling_text": "hold down bolt material specification", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Material, condition, fretting, vibration and elongation", "cross_family": false }, { "answer_id": "TBR-TT-P02-002", "score": 0.6461061835289001, "sibling_score": 0.6461061835289001, "answer_score": null, "sibling_qid": "MUM-2026-02-2549-Q006", "sibling_text": "holding down bolts tightness check", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Checking tie rod tightness / slackness — stopped and running", "cross_family": false }, { "answer_id": "FB-COUP-001", "score": 0.6323484778404236, "sibling_score": 0.6323484778404236, "answer_score": 0.48396954238414763, "sibling_qid": "KOC-2026-09-2175-Q005", "sibling_text": "fitted bolts where", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What fitted bolts are, what they do, and where they sit onboard", "cross_family": false } ] }, { "qid": "CHE-2026-05-0614-Q009", "text": "In any measuring instruments if its shown zero, what is the meaning?", "family": "Instrumentation & Controls", "subtopic": "", "tid": "CHE-2026-05-0614", "tray": "new", "candidates": [ { "answer_id": "FP-OVHL-005", "score": 0.6427696347236633, "sibling_score": 0.6427696347236633, "answer_score": null, "sibling_qid": "KOL-2023-08-3630-Q004", "sibling_text": "what is zero setting how u measure it in main engine", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel pump zero setting — what it is, why, and how to set it", "cross_family": true }, { "answer_id": "OMD-003", "score": 0.6287802457809448, "sibling_score": 0.6287802457809448, "answer_score": null, "sibling_qid": "MUM-2024-08-0189-Q004", "sibling_text": "omd zero setting calibration", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Explain the OMD working principle, its types and their differences, the electrical side, and zero setting and calibration.", "cross_family": true }, { "answer_id": "MICR-002", "score": 0.6234924793243408, "sibling_score": 0.6234924793243408, "answer_score": 0.4628144562244415, "sibling_qid": "KOL-2026-04-3949-Q005", "sibling_text": "inside micro meter zero calibration", "sibling_family": "Gauges & Tools", "via": "sibling", "answer_title": "Zero setting, calibration, error check and trueness", "cross_family": true } ] }, { "qid": "CHE-2026-05-0615-Q002", "text": "Transverse vibration control", "family": "Automation & Controls", "subtopic": "Temperature / Pressure / Level Sensor", "tid": "CHE-2026-05-0615", "tray": "new", "candidates": [ { "answer_id": "VIB-BAL-A-003", "score": 0.6473370790481567, "sibling_score": 0.6473370790481567, "answer_score": 0.5560205161571502, "sibling_qid": "KOL-2024-11-1956-Q004", "sibling_text": "how to reduce transverse vibration told top bracing said and anything else", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "VIB-A-03 — Transverse, longitudinal and lateral engine vibration, and how each is controlled (top bracing)", "cross_family": true }, { "answer_id": "VIB-BAL-B-003", "score": 0.6019322872161865, "sibling_score": 0.6019322872161865, "answer_score": 0.4542261064052582, "sibling_qid": "KOL-2025-07-1818-Q005", "sibling_text": "torsional vibration longitudinal vibration and axial vibration how to compensate and how it works", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Torsional vibration: what it is, what causes it, how it is controlled", "cross_family": true }, { "answer_id": "VIB-BAL-B-002", "score": 0.6003422141075134, "sibling_score": 0.6003422141075134, "answer_score": 0.44059466719627377, "sibling_qid": "MUM-2022-11-2717-Q006", "sibling_text": "axial vibrations arrangement to counter", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Axial vibration and the axial vibration damper", "cross_family": true } ] }, { "qid": "CHE-2026-05-0615-Q006", "text": "Cold work how will you do", "family": "ISM Code", "subtopic": "Safety & Environmental Protection Policy", "tid": "CHE-2026-05-0615", "tray": "new", "candidates": [ { "answer_id": "HT-A-002", "score": 0.4326629638671875, "sibling_score": 0.4326629638671875, "answer_score": null, "sibling_qid": "CHE-2026-05-0548-Q009", "sibling_text": "annealing full explain how will you do cooling practically", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Annealing: process, cooling control, and the reused copper washer", "cross_family": true }, { "answer_id": "MATPROP-A-010", "score": 0.42336249351501465, "sibling_score": 0.42336249351501465, "answer_score": 0.3312877058982849, "sibling_qid": "CHE-2025-12-0236-Q005", "sibling_text": "what is cold rolling", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Cold rolling, plastic deformation and plastic steel", "cross_family": true }, { "answer_id": "dus-p6-04", "score": 0.4182886481285095, "sibling_score": 0.4182886481285095, "answer_score": null, "sibling_qid": "CHE-2023-11-0395-Q008", "sibling_text": "you are going for cold lay up what precaution u will do", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Cold lay-up — precautions before the ship is put in preservation", "cross_family": true } ] }, { "qid": "CHE-2026-05-0616-Q001", "text": "hazardous and non hazardous area?", "family": "Cargo Ops - Tankers", "subtopic": "IG System", "tid": "CHE-2026-05-0616", "tray": "new", "candidates": [ { "answer_id": "RA-MGMT-A-001", "score": 0.5701295137405396, "sibling_score": 0.5701295137405396, "answer_score": null, "sibling_qid": "KOL-2020-08-3344-Q006", "sibling_text": "hazards definition parts of it", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "What is risk, what is hazard, and what is risk assessment?", "cross_family": true }, { "answer_id": "TCM-374-005", "score": 0.5615061521530151, "sibling_score": 0.5615061521530151, "answer_score": null, "sibling_qid": "KOC-2026-04-0912-Q020", "sibling_text": "hazard zone in chemical tanker", "sibling_family": "", "via": "sibling", "answer_title": "Gas-freeing a tanker after discharge or before dry dock (why through the IG system)", "cross_family": false }, { "answer_id": "COT-P02-15", "score": 0.5405123233795166, "sibling_score": 0.5405123233795166, "answer_score": null, "sibling_qid": "KOL-2020-11-0436-Q007", "sibling_text": "hazardous of ig on u", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What are the hazards of inert gas to personnel, and what precautions are required when operating or maintaining the system?", "cross_family": false } ] }, { "qid": "CHE-2026-05-0616-Q004", "text": "Mlc latest amendments in which year?", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "CHE-2026-05-0616", "tray": "new", "candidates": [ { "answer_id": "COT-P02-10", "score": 0.4914003908634186, "sibling_score": 0.4914003908634186, "answer_score": null, "sibling_qid": "MUM-2026-06-3653-Q004", "sibling_text": "seemp latest amendment", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "State and explain the latest statutory amendments affecting tanker inert-gas systems, including applicability and practical changes on board.", "cross_family": true }, { "answer_id": "BC-IMSBC-005", "score": 0.4775565266609192, "sibling_score": 0.4775565266609192, "answer_score": 0.3778138533234596, "sibling_qid": "KOL-2025-08-1023-Q004", "sibling_text": "imsbc latest amendment", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "5. Latest IMSBC Code amendments", "cross_family": true }, { "answer_id": "IMO-CODES-P02-001", "score": 0.4713680148124695, "sibling_score": 0.4713680148124695, "answer_score": null, "sibling_qid": "KOC-2025-01-0515-Q002", "sibling_text": "msc108 new ammendments", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "IMO instruments: convention, code, protocol, amendment, regulation, resolution and rule", "cross_family": true } ] }, { "qid": "CHE-2026-05-0617-Q006", "text": "Last entry to make in ORB before reaching port ", "family": "MARPOL - Annex I (Oil)", "subtopic": "", "tid": "CHE-2026-05-0617", "tray": "new", "candidates": [ { "answer_id": "OWS-ORB-006", "score": 0.6076788306236267, "sibling_score": 0.6076788306236267, "answer_score": null, "sibling_qid": "MUM-2025-09-0447-Q007", "sibling_text": "orb entries", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "6. Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-002", "score": 0.5676801800727844, "sibling_score": 0.5676801800727844, "answer_score": null, "sibling_qid": "CHE-2024-10-0509-Q002", "sibling_text": "orb entries all in detail", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "The Oil Record Book Part I — purpose, the letter codes, and how entries are made", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-004", "score": 0.5255990028381348, "sibling_score": 0.5255990028381348, "answer_score": null, "sibling_qid": "MUM-2026-08-3831-Q008", "sibling_text": "bunker entry in orb", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Weekly ORB entries — the mandatory sludge retention record, the bunker entry, and what is voluntary", "cross_family": false } ] }, { "qid": "CHE-2026-05-0617-Q008", "text": "what you do as 2 nd engineer before the ship going to recycling", "family": "Other Conventions", "subtopic": "Hong Kong Convention / IHM", "tid": "CHE-2026-05-0617", "tray": "new", "candidates": [ { "answer_id": "DUS-P1-01", "score": 0.639452338218689, "sibling_score": 0.639452338218689, "answer_score": null, "sibling_qid": "KOL-2019-10-0332-Q003", "sibling_text": "as 2nd engineer checks you will do before going to dry dock", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Drydock preparation as 2E — full workflow from office confirmation to entry", "cross_family": true }, { "answer_id": "A6-NSEC-003", "score": 0.6311631798744202, "sibling_score": 0.6311631798744202, "answer_score": null, "sibling_qid": "CHE-2025-08-0206-Q008", "sibling_text": "nox control and t2 t3 difference mathews ss morthy fuc 3 slope tank epirb ais condition of assignment of freeboard iopp survey and documents last entry to make in orb before reaching port hongkong convention what you do as 2 nd engineer before the ship going to recycling welding on deck in oil tanker how you will make preperation as 2nd engineer", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "NOx — formation, limits & reduction (SCR / EGR)", "cross_family": true }, { "answer_id": "DDI-003", "score": 0.5959564447402954, "sibling_score": 0.5959564447402954, "answer_score": null, "sibling_qid": "KOL-2024-07-0845-Q010", "sibling_text": "as a second engineer checks before flooding of ship in drydock", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Before flooding the dock, what checks do you carry out — in the engine room, and on the propeller, rudder and stern tube?", "cross_family": true } ] }, { "qid": "CHE-2026-05-0617-Q009", "text": "Welding on deck in oil tanker how you will make preparation as 2nd engineer", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "NOx Limits / Tier", "tid": "CHE-2026-05-0617", "tray": "review", "candidates": [ { "answer_id": "A6-NSEC-003", "score": 0.750945508480072, "sibling_score": 0.750945508480072, "answer_score": null, "sibling_qid": "CHE-2025-08-0206-Q008", "sibling_text": "nox control and t2 t3 difference mathews ss morthy fuc 3 slope tank epirb ais condition of assignment of freeboard iopp survey and documents last entry to make in orb before reaching port hongkong convention what you do as 2 nd engineer before the ship going to recycling welding on deck in oil tanker how you will make preperation as 2nd engineer", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "NOx — formation, limits & reduction (SCR / EGR)", "cross_family": false }, { "answer_id": "DUS-P1-01", "score": 0.6473604440689087, "sibling_score": 0.6473604440689087, "answer_score": null, "sibling_qid": "CHE-2025-10-0078-Q006", "sibling_text": "dry dock preparation as second engineer", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Drydock preparation as 2E — full workflow from office confirmation to entry", "cross_family": true }, { "answer_id": "FIRE-P04-05", "score": 0.6456586122512817, "sibling_score": 0.6456586122512817, "answer_score": null, "sibling_qid": "MUM-2023-11-0149-Q006", "sibling_text": "fire on deck in drydock your actions as 2nd engineer step by step", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fire in dry dock / alongside repair — 2/E stepwise actions", "cross_family": true } ] }, { "qid": "CHE-2026-05-0618-Q001", "text": "ship sailed ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2026-05-0618", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8449568152427673, "sibling_score": 0.8449568152427673, "answer_score": null, "sibling_qid": "MUM-2026-04-1319-Q001", "sibling_text": "ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.6832410097122192, "sibling_score": 0.6832410097122192, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.6813992261886597, "sibling_score": 0.6813992261886597, "answer_score": null, "sibling_qid": "MUM-2026-02-1280-Q001", "sibling_text": "type of ship done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false } ] }, { "qid": "CHE-2026-05-0619-Q007", "text": "Nox control and T2& T3 difference", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "NOx Limits / Tier", "tid": "CHE-2026-05-0619", "tray": "new", "candidates": [ { "answer_id": "A6-NSEC-002", "score": 0.5305044651031494, "sibling_score": 0.5305044651031494, "answer_score": 0.2955324351787567, "sibling_qid": "KOL-2020-07-0418-Q014", "sibling_text": "is t c included in nox", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "NOx Technical Code vs NOx Technical File", "cross_family": false }, { "answer_id": "A6-NSEC-003", "score": 0.5255644917488098, "sibling_score": 0.5255644917488098, "answer_score": null, "sibling_qid": "KOL-2023-03-0725-Q006", "sibling_text": "difference in nox tier 2 and tier 3", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "NOx — formation, limits & reduction (SCR / EGR)", "cross_family": false }, { "answer_id": "EIAPP-600-007", "score": 0.4532543420791626, "sibling_score": 0.4532543420791626, "answer_score": null, "sibling_qid": "KOL-2024-11-0883-Q002", "sibling_text": "eiapp and how nox varies", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "How does the EIAPP relate to the engine’s NOx compliance — how does NOx vary, and which Tier applies?", "cross_family": false } ] }, { "qid": "CHE-2026-05-0620-Q004", "text": "⁠fire line components. Hydrants regulation. What criteria decides no, position, location of hydrants and isolation valves(not engine room, accom valve) ?", "family": "SOLAS - Fire Safety", "subtopic": "Fixed Firefighting", "tid": "CHE-2026-05-0620", "tray": "review", "candidates": [ { "answer_id": "FFF-A-003", "score": 0.9157336354255676, "sibling_score": 0.9157336354255676, "answer_score": 0.5438011825084687, "sibling_qid": "CHE-2025-08-0038-Q012", "sibling_text": "fire line components hydrants regulation what criteria decides no position location of hydrants and isolation valves not engine room accom valve", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fire main, hydrants, isolating and deck valves, and fire-line fittings", "cross_family": false }, { "answer_id": "FHD-616-003", "score": 0.6655570864677429, "sibling_score": 0.6655570864677429, "answer_score": 0.5709064453840256, "sibling_qid": "KOL-2026-02-1175-Q004", "sibling_text": "hydrants regulations as per solas", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Number and position of fire hydrants — engine room and deck, per SOLAS and on your ship", "cross_family": false }, { "answer_id": "IRT-A-015", "score": 0.5169181317090988, "sibling_score": null, "answer_score": 0.5169181317090988, "sibling_qid": "", "sibling_text": "emergency fire pump location and keeping its insulation up location solas ii 2 reg 10 the emergency fire pump its source of power sea inlet suction delivery pipes and isolating valves are outside the machinery space containing the main fire pumps the pump space is not contiguous to category a main pump spaces unless equivalent structural fire protection is accepted direct access from the machinery", "sibling_family": "", "via": "answer_title", "answer_title": "Emergency fire pump - location and keeping its insulation up", "cross_family": false } ] }, { "qid": "CHE-2026-05-0620-Q011", "text": "⁠gyroscope working and uses?", "family": "Navigation & Bridge Equipment", "subtopic": "", "tid": "CHE-2026-05-0620", "tray": "new", "candidates": [ { "answer_id": "BK-002", "score": 0.4962693452835083, "sibling_score": 0.4962693452835083, "answer_score": null, "sibling_qid": "KOC-2026-03-0863-Q009", "sibling_text": "angle of gyration and period of roll equations and explanation", "sibling_family": "", "via": "sibling", "answer_title": "How does a bilge keel reduce rolling, and how does it relate to roll period and radius of gyration?", "cross_family": false }, { "answer_id": "ANG-ENC-003", "score": 0.4841008186340332, "sibling_score": 0.4841008186340332, "answer_score": 0.36912171840667723, "sibling_qid": "KOC-2023-01-0977-Q002", "sibling_text": "angle encoder working", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Working principle: sensing crank angle, speed and direction", "cross_family": true }, { "answer_id": "ANG-ENC-004", "score": 0.4837002158164978, "sibling_score": 0.4837002158164978, "answer_score": null, "sibling_qid": "MUM-2026-01-1238-Q003", "sibling_text": "angle encoder purpose configuration calibration etc", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Checks, testing, calibration and maintenance", "cross_family": true } ] }, { "qid": "CHE-2026-05-0621-Q001", "text": "Co2 fire fighting system certificates for 13 years old ship.", "family": "SOLAS - Fire Safety", "subtopic": "CO2 System", "tid": "CHE-2026-05-0621", "tray": "review", "candidates": [ { "answer_id": "CO2-SYS-004", "score": 0.8405846357345581, "sibling_score": 0.8405846357345581, "answer_score": null, "sibling_qid": "CHE-2025-08-0038-Q001", "sibling_text": "co2 fire fighting system certificates for 13 years old ship", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fixed CO2 total-flooding system — overview, working and arrangements", "cross_family": false }, { "answer_id": "CO2-CALC-P01-004", "score": 0.6524442434310913, "sibling_score": 0.6524442434310913, "answer_score": null, "sibling_qid": "KOL-2020-10-0427-Q005", "sibling_text": "fixed fire fighting on your ship how many bottles of co2 are for e r how to calculate the number of bottles required where is it specified certificates for co2", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Where is the CO2 quantity specified, and how would you prove to a surveyor the bottle count is as per standard?", "cross_family": false }, { "answer_id": "CO2-SYS-008", "score": 0.6479222178459167, "sibling_score": 0.6479222178459167, "answer_score": null, "sibling_qid": "MUM-2026-06-3646-Q003", "sibling_text": "fixed fire fighting system on your ship and co2 system regulation", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 release-rate rules, regulations and confirmation of discharge", "cross_family": false } ] }, { "qid": "CHE-2026-05-0622-Q004", "text": "Sart how it's giving notification to the ships?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "EPIRB / SART", "tid": "CHE-2026-05-0622", "tray": "new", "candidates": [ { "answer_id": "IGAT-583-001", "score": 0.4748535454273224, "sibling_score": 0.4748535454273224, "answer_score": null, "sibling_qid": "KOL-2018-09-0223-Q002", "sibling_text": "types of ship sailed on alarms trip of ig system", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "State all the alarms, trips and safety cut-outs provided on a tanker inert gas (IG) system.", "cross_family": true }, { "answer_id": "ISM-AUD-P03-004", "score": 0.46973365545272827, "sibling_score": 0.46973365545272827, "answer_score": null, "sibling_qid": "KOC-2026-02-0796-Q003", "sibling_text": "after joining ship how will know that vessel following ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Ensuring ISM / SMS is implemented and followed onboard", "cross_family": true }, { "answer_id": "LLST-AB-001", "score": 0.468166708946228, "sibling_score": 0.468166708946228, "answer_score": null, "sibling_qid": "CHE-2026-05-0614-Q001", "sibling_text": "start from type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": true } ] }, { "qid": "CHE-2026-05-0623-Q001", "text": "Ship sailed?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2026-05-0623", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8449568152427673, "sibling_score": 0.8449568152427673, "answer_score": null, "sibling_qid": "MUM-2026-04-1319-Q001", "sibling_text": "ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.6832410097122192, "sibling_score": 0.6832410097122192, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.6813992261886597, "sibling_score": 0.6813992261886597, "answer_score": null, "sibling_qid": "MUM-2026-02-1280-Q001", "sibling_text": "type of ship done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false } ] }, { "qid": "CHE-2026-05-0624-Q003", "text": "what is lamella, how will you decide that the segments can't use further?", "family": "2-Stroke - Components (Other)", "subtopic": "Stuffing Box / Piston Rod Gland", "tid": "CHE-2026-05-0624", "tray": "review", "candidates": [ { "answer_id": "VIB-BAL-B-002", "score": 0.6859763860702515, "sibling_score": 0.6859763860702515, "answer_score": null, "sibling_qid": "CHE-2025-08-0205-Q004", "sibling_text": "what is lamila how will you decide that the segments can t use further", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Axial vibration and the axial vibration damper", "cross_family": true }, { "answer_id": "SB-PRG-B-002", "score": 0.44378501176834106, "sibling_score": 0.44378501176834106, "answer_score": null, "sibling_qid": "MUM-2023-03-2165-Q002", "sibling_text": "stuffing box overhaul draw the various segments of rings if limit exceed what can be done", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Worn rings, springs, O-rings and no-spare actions", "cross_family": false }, { "answer_id": "DCMOT-CMU-B-002", "score": 0.4287537932395935, "sibling_score": 0.4287537932395935, "answer_score": null, "sibling_qid": "MUM-2025-11-1754-Q007", "sibling_text": "insulation material between segment", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "The commutator — function, construction, purpose", "cross_family": true } ] }, { "qid": "CHE-2026-05-0624-Q008", "text": "What is schedule pipe 40 and 80?", "family": "Workshop & Welding", "subtopic": "Pipe Material", "tid": "CHE-2026-05-0624", "tray": "new", "candidates": [ { "answer_id": "PIPE-MAT-004", "score": 0.5756152868270874, "sibling_score": 0.5756152868270874, "answer_score": 0.33562342524528505, "sibling_qid": "CHE-2025-08-0429-Q005", "sibling_text": "what is schedule pipe 40 and 80 po deciding", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Pipe schedule and its relation to thickness, ID, OD", "cross_family": false }, { "answer_id": "PIPE-MAT-003", "score": 0.5065968632698059, "sibling_score": 0.5065968632698059, "answer_score": null, "sibling_qid": "KOL-2020-02-1520-Q007", "sibling_text": "pipe specification and ordering what is nd and schedule", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Nominal diameter / bore, ND, NPS — and 100A, 250A", "cross_family": false }, { "answer_id": "PIPE-MAT-005", "score": 0.4926932454109192, "sibling_score": 0.4926932454109192, "answer_score": 0.3417264804244041, "sibling_qid": "CHE-2025-08-0433-Q002", "sibling_text": "scheduled pipe carbon pipe", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "“Schedule pipe” vs “carbon-steel pipe” — and how to tell them apart", "cross_family": false } ] }, { "qid": "CHE-2026-05-0625-Q007", "text": "what is absolute pressure and gauge pressure?", "family": "Gauges & Tools", "subtopic": "Pressure Gauge Calibration", "tid": "CHE-2026-05-0625", "tray": "new", "candidates": [ { "answer_id": "DP-TX-001", "score": 0.5822578072547913, "sibling_score": 0.5822578072547913, "answer_score": 0.4323419153690338, "sibling_qid": "KOL-2020-06-3981-Q003", "sibling_text": "differential pressure gauge how it works", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "DP cell / DP transmitter — working principle, construction and signal", "cross_family": true }, { "answer_id": "TPL-SENS-A-002", "score": 0.5803994536399841, "sibling_score": 0.5803994536399841, "answer_score": null, "sibling_qid": "MUM-2026-05-3165-Q005", "sibling_text": "how to calibrate pressure gauge", "sibling_family": "Gauges & Tools", "via": "sibling", "answer_title": "Pressure transmitter / transducer / switch working and calibration", "cross_family": false }, { "answer_id": "REEF-COMP-008", "score": 0.5738216638565063, "sibling_score": 0.5738216638565063, "answer_score": null, "sibling_qid": "KOL-2017-12-3109-Q003", "sibling_text": "refer suction press garage and compressor suc press gauge difference", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Valves, clearances, oil carry-over, refrigerant-in-oil, frosting, tandem valves, cooling — fault checks", "cross_family": true } ] }, { "qid": "CHE-2026-05-0625-Q008", "text": "Why separate dosing pump for boiler and why not add in cascade tank? Decided question PO", "family": "Boilers - Construction & Components", "subtopic": "Cascade Tank / Condenser", "tid": "CHE-2026-05-0625", "tray": "new", "candidates": [ { "answer_id": "FURN-REF-004", "score": 0.6304971575737, "sibling_score": 0.6304971575737, "answer_score": null, "sibling_qid": "KOL-2018-12-1434-Q002", "sibling_text": "y collugation added into boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Boiler furnace construction, corrugation, swirl / contraction and furnace mountings", "cross_family": false }, { "answer_id": "BLR-CHEM-003", "score": 0.6128883361816406, "sibling_score": 0.6128883361816406, "answer_score": null, "sibling_qid": "CHE-2026-02-0245-Q005", "sibling_text": "how is the boiler dosing carrier out", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "3. Boiler chemical dosing programme", "cross_family": true }, { "answer_id": "BCFS-002", "score": 0.5800831317901611, "sibling_score": 0.5800831317901611, "answer_score": 0.4956387162208557, "sibling_qid": "KOL-2022-09-1709-Q005", "sibling_text": "excessive steaming in cascade tank reason", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "The cascade tank — purpose, location, construction, temperature control and abnormal steaming", "cross_family": false } ] }, { "qid": "CHE-2026-05-0625-Q010", "text": "What type in your engine?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "CHE-2026-05-0625", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.73563152551651, "sibling_score": 0.73563152551651, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.7227826714515686, "sibling_score": 0.7227826714515686, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "BED-CHOCK-006", "score": 0.42686955034732815, "sibling_score": null, "answer_score": 0.42686955034732815, "sibling_qid": "", "sibling_text": "what types of main engine chocks are there epoxy resin cast iron rubber and why each cast iron steel solid machined plus scraped traditional used where resin temperature limits rule epoxy out epoxy resin e g chockfast orange poured full contact no machining standard for main engines", "sibling_family": "", "via": "answer_title", "answer_title": "What types of main-engine chocks are there — epoxy/resin, cast-iron, rubber — and why each?", "cross_family": false } ] }, { "qid": "CHE-2026-05-0625-Q011", "text": "How to measure K value?", "family": "Electrical - Motors & Starters", "subtopic": "IR Test / Insulation Resistance", "tid": "CHE-2026-05-0625", "tray": "new", "candidates": [ { "answer_id": "TC-KLM-330-002", "score": 0.5307239294052124, "sibling_score": 0.5307239294052124, "answer_score": 0.3735176265239715, "sibling_qid": "CHE-2026-05-0615-Q005", "sibling_text": "k value of tc how to measure", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "What is the K value, why is it important, and what happens if it is wrong?", "cross_family": true }, { "answer_id": "TC-KLM-330-003", "score": 0.4736568331718445, "sibling_score": 0.4736568331718445, "answer_score": 0.42961888015270233, "sibling_qid": "MUM-2026-09-3926-Q005", "sibling_text": "how to measure k value in turbocharger", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Finding the K value during overhaul — procedure, and the reasons for taking it", "cross_family": true }, { "answer_id": "GM-META-001", "score": 0.47277918457984924, "sibling_score": 0.47277918457984924, "answer_score": null, "sibling_qid": "KOL-2021-12-3997-Q003", "sibling_text": "how to get km value", "sibling_family": "", "via": "sibling", "answer_title": "Determining KB, BM, KM, KG and the stability chain", "cross_family": false } ] }, { "qid": "CHE-2026-05-0626-Q001", "text": "Type of ship, type of cargo and about Grain code?", "family": "__META__ (non-exam)", "subtopic": "", "tid": "CHE-2026-05-0626", "tray": "review", "candidates": [ { "answer_id": "ODC-008", "score": 0.6812704205513, "sibling_score": 0.6812704205513, "answer_score": null, "sibling_qid": "MUM-2026-03-2647-Q001", "sibling_text": "type of cargo discharge in your ship", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "Cargo-area discharge criteria for an oil tanker — outside a special area", "cross_family": false }, { "answer_id": "SOLAS12-BC-A-001", "score": 0.6582978963851929, "sibling_score": 0.6582978963851929, "answer_score": null, "sibling_qid": "MUM-2026-06-3382-Q001", "sibling_text": "type of ship sailed bulk carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "SOLAS definition and scope of a bulk carrier", "cross_family": true }, { "answer_id": "IMDG-002", "score": 0.6495518684387207, "sibling_score": 0.6495518684387207, "answer_score": null, "sibling_qid": "KOL-2026-05-0015-Q002", "sibling_text": "type of cargo under imdg code", "sibling_family": "", "via": "sibling", "answer_title": "What are the classes and categories of cargo under the IMDG Code? Explain all nine", "cross_family": false } ] }, { "qid": "CHE-2026-05-0626-Q010", "text": "Bulkhead and how many bulkheads in bulk carrier and where it is mentioned ?", "family": "Ship Construction", "subtopic": "", "tid": "CHE-2026-05-0626", "tray": "review", "candidates": [ { "answer_id": "SOLAS12-BC-F-001", "score": 0.6560838222503662, "sibling_score": 0.6560838222503662, "answer_score": 0.523421761393547, "sibling_qid": "KOL-2017-10-0119-Q001", "sibling_text": "additional safety of bulk carrier difference between the bulkhead of foremost two bulkhead with other bulkhead", "sibling_family": "", "via": "sibling", "answer_title": "Barriers, foremost bulkheads, hatchways & double-side skin", "cross_family": false }, { "answer_id": "BSBH-420-002", "score": 0.6367247700691223, "sibling_score": 0.6367247700691223, "answer_score": null, "sibling_qid": "MUM-2026-05-3262-Q001", "sibling_text": "bulk carrier arrangement forward of collision bulkhead", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Fore-end / forepeak construction forward of the collision bulkhead — members and cross-section", "cross_family": true }, { "answer_id": "A60-BCLASS-001", "score": 0.6152821779251099, "sibling_score": 0.6152821779251099, "answer_score": null, "sibling_qid": "KOC-2023-07-0200-Q004", "sibling_text": "a class and a60 types of bulkhead", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "A-60 / Class ‘A’ fire division — what it is", "cross_family": true } ] }, { "qid": "CHE-2026-05-0626-Q012", "text": "Why 2 WIAS in cargo hold?", "family": "Cargo Ops - Bulk Carriers", "subtopic": "Cargo Hold Level Detector", "tid": "CHE-2026-05-0626", "tray": "new", "candidates": [ { "answer_id": "WIDAS-SMK-003", "score": 0.5115116834640503, "sibling_score": 0.5115116834640503, "answer_score": null, "sibling_qid": "KOL-2024-10-0874-Q004", "sibling_text": "widas in cargo hold details height of each sensors", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "WIDAS arrangement — sensors, levels, panel and repeater", "cross_family": false }, { "answer_id": "WIDAS-SMK-002", "score": 0.47955816984176636, "sibling_score": 0.47955816984176636, "answer_score": null, "sibling_qid": "CHE-2026-05-0626-Q011", "sibling_text": "water ingress alarm position in cargo hold and does it fitted in all cargo holds", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "WIDAS purpose and the three protected spaces", "cross_family": false }, { "answer_id": "FSH-DET-006", "score": 0.467312216758728, "sibling_score": 0.467312216758728, "answer_score": null, "sibling_qid": "KOL-2022-09-0682-Q003", "sibling_text": "detector in d g cargo hold and why", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fire detection arrangements for compressor room and cargo-hold spaces", "cross_family": true } ] }, { "qid": "CHE-2026-05-0626-Q015", "text": "Sprinkler system and why not in Engine room?", "family": "SOLAS - Fire Safety", "subtopic": "Sprinkler / Water Mist / Hi-Fog", "tid": "CHE-2026-05-0626", "tray": "review", "candidates": [ { "answer_id": "FIRE-P02-04", "score": 0.7062397599220276, "sibling_score": 0.7062397599220276, "answer_score": null, "sibling_qid": "CHE-2026-09-3917-Q005", "sibling_text": "hyper mist vs sprinkler why sprinkler is not used in engine room", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist vs sprinkler and CO₂ — comparison and coexistence", "cross_family": false }, { "answer_id": "CO2-SYS-005", "score": 0.6728917360305786, "sibling_score": 0.6728917360305786, "answer_score": null, "sibling_qid": "KOC-2026-03-0843-Q006", "sibling_text": "fixed fire fighting systems in the engine room", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 system safeties, CO2-room requirements, alarms and ventilation", "cross_family": false }, { "answer_id": "FFF-A-002", "score": 0.6526575684547424, "sibling_score": 0.6526575684547424, "answer_score": null, "sibling_qid": "KOL-2024-07-1948-Q008", "sibling_text": "all firefighting equipment in engine room", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fixed firefighting in the engine room and machinery spaces", "cross_family": false } ] }, { "qid": "CHE-2026-05-0626-Q016", "text": "Difference between CO2 bottle in Life raft and CO2 Portable extinguisher? Deciding question", "family": "SOLAS - Fire Safety", "subtopic": "Fire Extinguisher Types", "tid": "CHE-2026-05-0626", "tray": "review", "candidates": [ { "answer_id": "CO2-SYS-002", "score": 0.6981717944145203, "sibling_score": 0.6981717944145203, "answer_score": null, "sibling_qid": "KOC-2025-03-0559-Q006", "sibling_text": "co2 bottle pressure test procedures want to hear limit of permanent expansion internal igc code fwd life raft requirement and light requirement near fwd life raft want to hear emergency source", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 maintenance, inspection, testing and survey routines", "cross_family": false }, { "answer_id": "CO2-CALC-P01-004", "score": 0.6829959154129028, "sibling_score": 0.6829959154129028, "answer_score": null, "sibling_qid": "KOL-2020-10-0427-Q005", "sibling_text": "fixed fire fighting on your ship how many bottles of co2 are for e r how to calculate the number of bottles required where is it specified certificates for co2", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Where is the CO2 quantity specified, and how would you prove to a surveyor the bottle count is as per standard?", "cross_family": false }, { "answer_id": "FEXT-583-001", "score": 0.6797471642494202, "sibling_score": 0.6797471642494202, "answer_score": null, "sibling_qid": "KOL-2021-01-0451-Q001", "sibling_text": "types of portable extinguisher onboard your ship advantages of one over another if owner wants to keep only one type of extinguisher what u will chose to keep onboard and why maintenance of co2 pressure test", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Types of portable fire extinguishers carried on board, their capacities and their advantages", "cross_family": false } ] }, { "qid": "CHE-2026-05-0627-Q001", "text": "Psc inspection will you try out emergency generator? 2.surveyor is insisting to do cargo discharge is on progress ?", "family": "Electrical - Generator & Alternator", "subtopic": "Emergency DG", "tid": "CHE-2026-05-0627", "tray": "review", "candidates": [ { "answer_id": "EMG-DG-P04-002", "score": 0.9094169735908508, "sibling_score": 0.9094169735908508, "answer_score": null, "sibling_qid": "CHE-2025-08-0289-Q001", "sibling_text": "psc inspection will you try out emergency generator surveyor is insisting to do cargo discharge is on progress", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "PSC / surveyor demonstration during cargo, and required run durations", "cross_family": false }, { "answer_id": "EMG-DG-P04-005", "score": 0.6778849959373474, "sibling_score": 0.6778849959373474, "answer_score": null, "sibling_qid": "KOL-2017-11-0129-Q002", "sibling_text": "emergency generator psc survey preparation and interlock testing", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Interlocks, paralleling restriction, tie breakers & main-bus connection", "cross_family": false }, { "answer_id": "EMG-DG-P04-001", "score": 0.6365674734115601, "sibling_score": 0.6365674734115601, "answer_score": 0.49853497147560116, "sibling_qid": "KOC-2024-05-1358-Q005", "sibling_text": "emergency generator onload test", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Emergency generator on-load / load-test procedure", "cross_family": false } ] }, { "qid": "CHE-2026-05-0627-Q005", "text": "Why 24 volt dc?", "family": "Electrical - Batteries & DC Systems", "subtopic": "Battery", "tid": "CHE-2026-05-0627", "tray": "review", "candidates": [ { "answer_id": "BDC-P02-04", "score": 0.7742024660110474, "sibling_score": 0.7742024660110474, "answer_score": 0.5158767342567444, "sibling_qid": "CHE-2025-08-0289-Q005", "sibling_text": "why 24 volt dc", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "The ship's 24 V DC system — how it is produced, why DC, and what it supplies", "cross_family": false }, { "answer_id": "EPC-P01-06", "score": 0.4941480815410614, "sibling_score": null, "answer_score": 0.4941480815410614, "sibling_qid": "", "sibling_text": "do we produce dc on board sources the 24 12 volt arrangement and where dc is used draw ready block chain asked at sittings 440 v board isolation and protection step down transformer bridge filter regulator 24 v bus battery in float across the bus ripple reduction reservoir capacitor plus choke lc filtering after the bridge filter detail base tc a 008 extended this build ext cq epc 047 section g vo", "sibling_family": "", "via": "answer_title", "answer_title": "Do we produce DC on board? Sources, the 24/12-volt arrangement, and where DC is used", "cross_family": false }, { "answer_id": "VOLT-SYS-008", "score": 0.4293417990207672, "sibling_score": null, "answer_score": 0.4293417990207672, "sibling_qid": "", "sibling_text": "why standard shipboard voltages 440 230 220 110 and 24", "sibling_family": "", "via": "answer_title", "answer_title": "Why standard shipboard voltages: 440, 230/220, 110 and 24", "cross_family": false } ] }, { "qid": "CHE-2026-05-0628-Q001", "text": "Type of ship(chem tanker)?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2026-05-0628", "tray": "review", "candidates": [ { "answer_id": "IBC-BCH-B-004", "score": 0.8667647838592529, "sibling_score": 0.8667647838592529, "answer_score": null, "sibling_qid": "MUM-2026-05-3156-Q001", "sibling_text": "type of ships chemical tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Certificate of Fitness and MARPOL Annex II in practice", "cross_family": false }, { "answer_id": "BCH-IBC-A-001", "score": 0.8617109656333923, "sibling_score": 0.8617109656333923, "answer_score": 0.5987709581851959, "sibling_qid": "CHE-2026-03-0128-Q001", "sibling_text": "type of chemical tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type 1, Type 2 and Type 3 chemical tankers — the ship-type classification", "cross_family": false }, { "answer_id": "IBC-BCH-B-002", "score": 0.809272050857544, "sibling_score": 0.809272050857544, "answer_score": null, "sibling_qid": "MUM-2026-04-0883-Q001", "sibling_text": "type of vessel sailed chem product tanker", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Chemical cargo categories — MARPOL Annex II and IBC Chapters 17 & 18", "cross_family": true } ] }, { "qid": "CHE-2026-05-0628-Q005", "text": "FSE And how to counter measure?", "family": "Ship Construction & Naval Architecture", "subtopic": "", "tid": "CHE-2026-05-0628", "tray": "new", "candidates": [ { "answer_id": "FSE-P02-001", "score": 0.5761579275131226, "sibling_score": 0.5761579275131226, "answer_score": null, "sibling_qid": "CHE-2025-08-0041-Q006", "sibling_text": "fse and how to counter measure", "sibling_family": "", "via": "sibling", "answer_title": "Reducing and correcting free surface effect in practice", "cross_family": false }, { "answer_id": "FSE-P01-001", "score": 0.45222851634025574, "sibling_score": 0.45222851634025574, "answer_score": null, "sibling_qid": "MUM-2025-11-0570-Q012", "sibling_text": "define fse", "sibling_family": "", "via": "sibling", "answer_title": "What is free surface effect? Explain the basic concept.", "cross_family": false }, { "answer_id": "FSE-P02-002", "score": 0.414009690284729, "sibling_score": 0.414009690284729, "answer_score": null, "sibling_qid": "MUM-2026-03-0865-Q007", "sibling_text": "fse and tanker preventive measure of fse in tanker", "sibling_family": "", "via": "sibling", "answer_title": "Constructional arrangements in tanks and tankers that reduce FSE", "cross_family": false } ] }, { "qid": "CHE-2026-05-0629-Q002S2", "text": "What is Bulwark ?", "family": "Ship Construction & Stability", "subtopic": "DEFINITION", "tid": "CHE-2026-05-0629", "tray": "review", "candidates": [ { "answer_id": "BULWARK-001", "score": 0.6548774838447571, "sibling_score": 0.6548774838447571, "answer_score": 0.4002800971269607, "sibling_qid": "CHE-2026-02-0106-Q002", "sibling_text": "what is bulwark", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "What is a bulwark — where is it located and what is its purpose?", "cross_family": false }, { "answer_id": "BULWARK-002", "score": 0.4824010133743286, "sibling_score": 0.4824010133743286, "answer_score": null, "sibling_qid": "KOL-2018-09-0220-Q002", "sibling_text": "bulwark regulation purpose", "sibling_family": "", "via": "sibling", "answer_title": "What regulation applies to bulwarks?", "cross_family": false }, { "answer_id": "BULWARK-003", "score": 0.4708549380302429, "sibling_score": 0.4708549380302429, "answer_score": 0.33074180185794827, "sibling_qid": "CHE-2026-05-0586-Q007", "sibling_text": "what is bulwark freeing port types", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "What are freeing ports in a bulwark, and what is their purpose?", "cross_family": false } ] }, { "qid": "CHE-2026-05-0629-Q002S3", "text": "garboard strake", "family": "None", "subtopic": "Shell Plating / Strakes", "tid": "CHE-2026-05-0629", "tray": "review", "candidates": [ { "answer_id": "SHELL-PLT-B-003", "score": 0.668304443359375, "sibling_score": 0.668304443359375, "answer_score": 0.5079131722450256, "sibling_qid": "KOC-2026-05-0042-Q002", "sibling_text": "garboard strake", "sibling_family": "", "via": "sibling", "answer_title": "Garboard and bilge strakes", "cross_family": false }, { "answer_id": "SHELL-PLT-B-001", "score": 0.628589391708374, "sibling_score": 0.628589391708374, "answer_score": 0.42044029533863064, "sibling_qid": "CHE-2024-10-0509-Q007", "sibling_text": "garboard strake shear strake stellar strake", "sibling_family": "", "via": "sibling", "answer_title": "Sheer strake — location, why strengthened, deck-edge / gunwale connection", "cross_family": false }, { "answer_id": "BULWARK-004", "score": 0.4338472425937652, "sibling_score": null, "answer_score": 0.4338472425937652, "sibling_qid": "", "sibling_text": "what is a gunwale and how does it relate to the bulwark and deck side railings gunwale the junction of the sheerstrake top side strake and the stringer plate outboard deck strake the top edge of the ship s side at deck level above it sit the deck side railings a solid bulwark or open guard rails load line reg 25", "sibling_family": "", "via": "answer_title", "answer_title": "What is a gunwale, and how does it relate to the bulwark and deck-side railings?", "cross_family": false } ] }, { "qid": "CHE-2026-05-0630-Q001", "text": "Draw and explain Brushless excitation system?", "family": "Cargo Ops - Tankers", "subtopic": "IG System", "tid": "CHE-2026-05-0630", "tray": "review", "candidates": [ { "answer_id": "BRUSHALT-A-001", "score": 0.753812849521637, "sibling_score": 0.753812849521637, "answer_score": 0.572887760400772, "sibling_qid": "CHE-2026-05-0634-Q016", "sibling_text": "draw and explain brushless excitation", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01 · Working principle of the brushless alternator / brushless excitation systemHigh", "cross_family": true }, { "answer_id": "BL-ALT-C-003", "score": 0.6762023568153381, "sibling_score": 0.6762023568153381, "answer_score": null, "sibling_qid": "KOL-2021-07-2454-Q005", "sibling_text": "types of excitation brushless excitation explain", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Compare excitation types: brushed / static / brushless", "cross_family": true }, { "answer_id": "AVR-EXC-G-002", "score": 0.5669689953327178, "sibling_score": null, "answer_score": 0.5669689953327178, "sibling_qid": "", "sibling_text": "brushless excitation how dc reaches the rotor avr senses terminal voltage and sets the dc to the stationary exciter field the exciter is inverted field stationary armature rotating on the shaft", "sibling_family": "", "via": "answer_title", "answer_title": "Brushless excitation: how DC reaches the rotor", "cross_family": false } ] }, { "qid": "CHE-2026-05-0631-Q001", "text": "Type of engine?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "CHE-2026-05-0631", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.8005334734916687, "sibling_score": 0.8005334734916687, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.792962908744812, "sibling_score": 0.792962908744812, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-001", "score": 0.45256524085998534, "sibling_score": null, "answer_score": 0.45256524085998534, "sibling_qid": "", "sibling_text": "1 turbocharger type main engine vs generator engine compressor is centrifugal in both cases only the turbine type differs large slow speed main engine axial flow turbine single stage constant pressure system", "sibling_family": "", "via": "answer_title", "answer_title": "1. Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "CHE-2026-05-0631-Q003", "text": "Least rpm your ship can go?", "family": "__META__ (non-exam)", "subtopic": "", "tid": "CHE-2026-05-0631", "tray": "new", "candidates": [ { "answer_id": "CSBR-005", "score": 0.5775333642959595, "sibling_score": 0.5775333642959595, "answer_score": 0.4857204884290695, "sibling_qid": "CHE-2026-02-0333-Q021S2", "sibling_text": "what is the minimum rpm me can run how fuel supplied in minimum rpm", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "CSBR-009 — Minimum / low-RPM running limits and precautions", "cross_family": true }, { "answer_id": "GM-META-003", "score": 0.5688230991363525, "sibling_score": 0.5688230991363525, "answer_score": null, "sibling_qid": "MUM-2024-12-2781-Q005", "sibling_text": "value of min gm for your ship", "sibling_family": "", "via": "sibling", "answer_title": "Finding the initial GM on board", "cross_family": false }, { "answer_id": "WCM-P02-004", "score": 0.5652132034301758, "sibling_score": 0.5652132034301758, "answer_score": null, "sibling_qid": "KOL-2018-08-2217-Q002", "sibling_text": "any motor in ship with maxm rpm what was the rpm how you can increase the rpm of motor onboard 3windlass motor working", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Windlass / mooring-winch motor safeties, switchboard checks and the slipping clutch", "cross_family": true } ] }, { "qid": "CHE-2026-05-0631-Q005", "text": "How many injectors in cylinder head?", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Cover / Head", "tid": "CHE-2026-05-0631", "tray": "new", "candidates": [ { "answer_id": "FINJ-006", "score": 0.556364893913269, "sibling_score": 0.556364893913269, "answer_score": 0.4870498597621918, "sibling_qid": "KOC-2025-12-1082-Q002", "sibling_text": "how many injectors per unit difference which take place during dead slow than higher load time for switching between injectors", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Number of fuel injectors per unit and load-dependent operation", "cross_family": true }, { "answer_id": "FINJ-002", "score": 0.546281099319458, "sibling_score": 0.546281099319458, "answer_score": null, "sibling_qid": "KOC-2025-11-1976-Q013", "sibling_text": "fuel injector angle on cylinder head", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel injector overhaul and testing — spray pattern and opening pressure", "cross_family": true }, { "answer_id": "FINJ-001", "score": 0.5374059081077576, "sibling_score": 0.5374059081077576, "answer_score": 0.45203053355216977, "sibling_qid": "KOL-2017-03-1280-Q002", "sibling_text": "purpose of 3 fuel injectors n related qs", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel injector — construction, working principle and general arrangement", "cross_family": true } ] }, { "qid": "CHE-2026-05-0631-Q006", "text": "Diff between ae and me conrod bolt?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Connecting Rod & Bolts", "tid": "CHE-2026-05-0631", "tray": "new", "candidates": [ { "answer_id": "AEME-DIFF-001", "score": 0.5243352055549622, "sibling_score": 0.5243352055549622, "answer_score": null, "sibling_qid": "MUM-2025-07-1149-Q002", "sibling_text": "construction difference between me and ae", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": true }, { "answer_id": "AECR-651-001", "score": 0.46240246295928955, "sibling_score": 0.46240246295928955, "answer_score": null, "sibling_qid": "MUM-2022-12-1037-Q023", "sibling_text": "checks on con rod of ae", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What checks do you carry out on the connecting rod of an AE / DG — inspection, overhaul checks and the trueness check?", "cross_family": false }, { "answer_id": "EMD-MEAE-001", "score": 0.45501601696014404, "sibling_score": 0.45501601696014404, "answer_score": null, "sibling_qid": "MUM-2024-07-1087-Q006", "sibling_text": "difference between foundation seating of me and ae basically the chocks are used in me and ae has flexible foundation which allows a certain degree of movement", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "1. ME vs AE foundation — rigid chocking against resilient mounting", "cross_family": true } ] }, { "qid": "CHE-2026-05-0631-Q008", "text": "Use of tierods ?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Tie Rod / Tie Bolt", "tid": "CHE-2026-05-0631", "tray": "new", "candidates": [ { "answer_id": "A6-NSEC-003", "score": 0.4292336702346802, "sibling_score": 0.4292336702346802, "answer_score": null, "sibling_qid": "MUM-2023-03-2727-Q011", "sibling_text": "tier values", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "NOx — formation, limits & reduction (SCR / EGR)", "cross_family": true }, { "answer_id": "VIB-BAL-A-001", "score": 0.4083772599697113, "sibling_score": 0.4083772599697113, "answer_score": null, "sibling_qid": "MUM-2023-01-0946-Q006", "sibling_text": "vibration control reduction in me where fitted what is there for tierod", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "VIB-A-01 — Engine vibration — what it is, its types and causes, and how it is controlled", "cross_family": true }, { "answer_id": "TR-TB-PA-004", "score": 0.395826131105423, "sibling_score": 0.395826131105423, "answer_score": null, "sibling_qid": "CHE-2025-12-0233-Q006", "sibling_text": "tierod quantity fixation during engine designing and is it single or multiple in your engine", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Arrangement, number and position; twin tie rods and MC/MC-C developments", "cross_family": false } ] }, { "qid": "CHE-2026-05-0631-Q010", "text": "Crankshaft deflection, what to check, if bearing faulty? 3.which bearing will you decide to overhaul ?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft Deflection", "tid": "CHE-2026-05-0631", "tray": "review", "candidates": [ { "answer_id": "CRK-DEFL-004", "score": 0.7843405604362488, "sibling_score": 0.7843405604362488, "answer_score": null, "sibling_qid": "MUM-2026-02-2571-Q010", "sibling_text": "after crankshaft deflection found out the bearing at the flywheel side unit port and stbd is got more readings how to handle what to check main bearings are good only", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Interpreting the readings and acting on abnormal values", "cross_family": false }, { "answer_id": "CRKPIN-P02-001", "score": 0.7839118838310242, "sibling_score": 0.7839118838310242, "answer_score": null, "sibling_qid": "KOL-2022-01-3514-Q005", "sibling_text": "me crankpin bearing all checks on bearing surface and crankpin few more cant recall", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankpin (bottom-end) bearing — removal, overhaul and survey inspection", "cross_family": false }, { "answer_id": "CRPIN-CHK-P01-001", "score": 0.7595823407173157, "sibling_score": 0.7595823407173157, "answer_score": null, "sibling_qid": "MUM-2022-07-2135-Q005", "sibling_text": "crankpin bearing checks", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankpin ovality — how it is measured and at what positions", "cross_family": false } ] }, { "qid": "CHE-2026-05-0631-Q015", "text": "Advs and disadvs of Gas admission and Gas injection?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "ME-GI / Dual Fuel", "tid": "CHE-2026-05-0631", "tray": "new", "candidates": [ { "answer_id": "MEGI-304-003", "score": 0.5615473389625549, "sibling_score": 0.5615473389625549, "answer_score": 0.4198725804686546, "sibling_qid": "KOC-2024-06-2049-Q003", "sibling_text": "how is the gas injection carried out", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "3. How LNG / gas is fed, admitted or injected — and at what cycle and compression", "cross_family": false }, { "answer_id": "MEGI-304-005", "score": 0.5119343996047974, "sibling_score": 0.5119343996047974, "answer_score": null, "sibling_qid": "KOL-2024-05-1777-Q003", "sibling_text": "injection with mcc engine working cycle why pilot fuel required in gas mode safeties in gvu ventilation of engine room", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "5. Dual-fuel safeties — GVU, gas leakage, double-wall piping, detection and ventilation", "cross_family": false }, { "answer_id": "DFUEL-566-001", "score": 0.5112224817276001, "sibling_score": 0.5112224817276001, "answer_score": null, "sibling_qid": "MUM-2026-05-3267-Q003", "sibling_text": "how gas injection and pilot fuel injection", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "How does a dual-fuel engine use gas fuel with pilot fuel injection — and can it run on both liquid and gas?", "cross_family": true } ] }, { "qid": "CHE-2026-05-0631-Q016", "text": "How do you use NBOG boil off gas?", "family": "OTHER TOPICS", "subtopic": "", "tid": "CHE-2026-05-0631", "tray": "new", "candidates": [ { "answer_id": "IGC-IGF-012", "score": 0.48508764505386354, "sibling_score": 0.47733274102211, "answer_score": 0.48508764505386354, "sibling_qid": "KOL-2023-07-4025-Q004", "sibling_text": "how is boil off gas handled onboard working of reliquefaction plant", "sibling_family": "Other Conventions", "via": "answer_title", "answer_title": "Boil-off gas handling — reliquefaction, GCU and BOG compressor", "cross_family": true }, { "answer_id": "TCM-374-005", "score": 0.4714292287826538, "sibling_score": 0.4714292287826538, "answer_score": 0.37783011645078657, "sibling_qid": "KOC-2023-10-0236-Q004", "sibling_text": "complete step by step procedure on gas freeing though i worked on containers", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Gas-freeing a tanker after discharge or before dry dock (why through the IG system)", "cross_family": true }, { "answer_id": "BLR-SURV-P02-008", "score": 0.4667363166809082, "sibling_score": 0.4667363166809082, "answer_score": null, "sibling_qid": "KOC-2021-08-1765-Q006", "sibling_text": "how to empty boiler before surveying change over on do and blow down with full pressure tk want this", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": true } ] }, { "qid": "CHE-2026-05-0631-Q017", "text": "How will you check slackness of foundation bolts?", "family": "2-Stroke - Components (Other)", "subtopic": "", "tid": "CHE-2026-05-0631", "tray": "new", "candidates": [ { "answer_id": "TBR-TT-P02-002", "score": 0.6239086985588074, "sibling_score": 0.6239086985588074, "answer_score": 0.4601567268371582, "sibling_qid": "MUM-2025-07-1148-Q004", "sibling_text": "tie bolts slack what will be the indications", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Checking tie rod tightness / slackness — stopped and running", "cross_family": true }, { "answer_id": "CRB-002", "score": 0.5924230813980103, "sibling_score": 0.5924230813980103, "answer_score": null, "sibling_qid": "CHE-2025-11-0221-Q004", "sibling_text": "checks on conrod bolts", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What checks and tests are carried out on connecting rod bolts? Why NDT, why check elongation, what is the maximum limit, and which section tends to shear off?", "cross_family": true }, { "answer_id": "CHAIN-TENS-A-002", "score": 0.5802041292190552, "sibling_score": 0.5802041292190552, "answer_score": null, "sibling_qid": "KOC-2024-05-1842-Q009", "sibling_text": "show on the drawing where you will check for slack", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Measuring Chain Slackness At Site", "cross_family": true } ] }, { "qid": "CHE-2026-05-0631-Q018", "text": "Is IG used onboard ?", "family": "Dual Fuel / Gas Systems", "subtopic": "", "tid": "CHE-2026-05-0631", "tray": "new", "candidates": [ { "answer_id": "COT-P02-01", "score": 0.6109299659729004, "sibling_score": 0.6109299659729004, "answer_score": null, "sibling_qid": "MUM-2026-08-3860-Q007", "sibling_text": "ig system onboard", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Draw and explain the complete tanker inert-gas system from gas production to the cargo tanks, identifying the main plant, control and deck components.", "cross_family": true }, { "answer_id": "FLD-601-001", "score": 0.46780693531036377, "sibling_score": 0.46780693531036377, "answer_score": null, "sibling_qid": "CHE-2025-10-0516-Q003", "sibling_text": "purpose of ig", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Draw and explain the hydrocarbon flammability diagram. What is its purpose and functional requirement, why is the line tapered, and how do you mark a point on it?", "cross_family": true }, { "answer_id": "IGAT-583-001", "score": 0.4570298194885254, "sibling_score": 0.4570298194885254, "answer_score": null, "sibling_qid": "MUM-2024-09-1459-Q003", "sibling_text": "ig system trips", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "State all the alarms, trips and safety cut-outs provided on a tanker inert gas (IG) system.", "cross_family": true } ] }, { "qid": "CHE-2026-05-0631-Q019", "text": "Why N2 used and not CO2?", "family": "Dual Fuel / Gas Systems", "subtopic": "", "tid": "CHE-2026-05-0631", "tray": "new", "candidates": [ { "answer_id": "CO2-SYS-004", "score": 0.49906253814697266, "sibling_score": 0.49906253814697266, "answer_score": null, "sibling_qid": "KOC-2024-09-0402-Q007", "sibling_text": "why co2 is used advantages", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fixed CO2 total-flooding system — overview, working and arrangements", "cross_family": true }, { "answer_id": "IGC-IGF-010", "score": 0.47101712226867676, "sibling_score": 0.47101712226867676, "answer_score": 0.3803055316209793, "sibling_qid": "KOL-2023-07-4025-Q013", "sibling_text": "why n2 is used in place of ig on lng carriers", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Inert gas and nitrogen on gas carriers — and why N2 on LNG", "cross_family": true }, { "answer_id": "DCP-FIXED-A-003", "score": 0.462791383266449, "sibling_score": 0.462791383266449, "answer_score": null, "sibling_qid": "KOL-2018-04-0166-Q005", "sibling_text": "deck dcp system explain diagram and why nitrogen cylinders are used and not co2", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Capacities, pressures, relief settings, regulations and calculation", "cross_family": true } ] }, { "qid": "CHE-2026-05-0632-Q011", "text": "Is air more than fuel ?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Engine Not Starting", "tid": "CHE-2026-05-0632", "tray": "new", "candidates": [ { "answer_id": "ME-NOSTART-001", "score": 0.5972787737846375, "sibling_score": 0.5972787737846375, "answer_score": null, "sibling_qid": "KOL-2019-04-3234-Q002", "sibling_text": "me turning on air but not on fuel", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Starts / turns on air but will not start on fuel — causes, checks and rectification", "cross_family": false }, { "answer_id": "CATF-438-003", "score": 0.48940980434417725, "sibling_score": 0.48940980434417725, "answer_score": null, "sibling_qid": "KOL-2017-01-3021-Q002", "sibling_text": "cat fines more in fuel effects and ur action", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Bunker analysis shows high or excess cat fines — what is your action?", "cross_family": false }, { "answer_id": "FQCC-583-B-014", "score": 0.4879194498062134, "sibling_score": 0.4879194498062134, "answer_score": 0.38342052847146985, "sibling_qid": "KOC-2025-06-1039-Q005", "sibling_text": "why we are using poor quality fuels", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Why do we burn poor quality fuel, and how is the engine and the fuel pump designed to take it?", "cross_family": false } ] }, { "qid": "CHE-2026-05-0632-Q012", "text": "What happens if more air less fuel and less air more fuel?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "", "tid": "CHE-2026-05-0632", "tray": "new", "candidates": [ { "answer_id": "ME-NOSTART-001", "score": 0.5885899662971497, "sibling_score": 0.5885899662971497, "answer_score": null, "sibling_qid": "KOL-2019-04-3234-Q002", "sibling_text": "me turning on air but not on fuel", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Starts / turns on air but will not start on fuel — causes, checks and rectification", "cross_family": false }, { "answer_id": "AC-VE-005", "score": 0.5356999635696411, "sibling_score": 0.5356999635696411, "answer_score": null, "sibling_qid": "KOC-2025-10-1957-Q030", "sibling_text": "what happens if less and more to compressor", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "If bumping clearance is more or less, what happens, and how do you reduce or adjust it?", "cross_family": true }, { "answer_id": "FCAM-LEAD-P04-003", "score": 0.5335935354232788, "sibling_score": 0.5335935354232788, "answer_score": null, "sibling_qid": "KOC-2026-01-1992-Q002", "sibling_text": "what will happen to engine performance if fuel injection got advanced and retarded", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Advanced, retarded or disturbed fuel timing effects", "cross_family": false } ] }, { "qid": "CHE-2026-05-0632-Q021", "text": "How sfoc reduced in modern engines?", "family": "2-Stroke - ME-C / Electronic Engine", "subtopic": "", "tid": "CHE-2026-05-0632", "tray": "new", "candidates": [ { "answer_id": "SFOC-006", "score": 0.5070139765739441, "sibling_score": 0.5070139765739441, "answer_score": 0.3698921144008636, "sibling_qid": "CHE-2026-05-0533-Q001S2", "sibling_text": "direct relation for achieving reduced sfoc", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What developments reduced fuel consumption in two-stroke engines — and what gives a direct reduction in SFOC?", "cross_family": true }, { "answer_id": "SFOC-003", "score": 0.474242240190506, "sibling_score": 0.474242240190506, "answer_score": null, "sibling_qid": "MUM-2026-06-3429-Q002", "sibling_text": "sfoc of your engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What is the SFOC of your main engine? With BHP, stroke and cylinder oil consumption", "cross_family": true }, { "answer_id": "SFOC-001", "score": 0.44089460372924805, "sibling_score": 0.44089460372924805, "answer_score": null, "sibling_qid": "KOL-2023-01-3591-Q004", "sibling_text": "how to find sfoc for your engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What is SFOC? Definition, formula, unit — and how you get the corrected density", "cross_family": true } ] }, { "qid": "CHE-2026-05-0632-Q022", "text": "Checks in ae foundation bolts?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Holding Down Bolts", "tid": "CHE-2026-05-0632", "tray": "new", "candidates": [ { "answer_id": "FB-COUP-001", "score": 0.6149677634239197, "sibling_score": 0.6149677634239197, "answer_score": null, "sibling_qid": "MUM-2026-02-1255-Q012", "sibling_text": "types of foundation bolts", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What fitted bolts are, what they do, and where they sit onboard", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.6041158437728882, "sibling_score": 0.6041158437728882, "answer_score": 0.41369892507791517, "sibling_qid": "CHE-2026-04-0170-Q001S4", "sibling_text": "ae con rod bolt stresses checks", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": true }, { "answer_id": "CRB-002", "score": 0.5828629732131958, "sibling_score": 0.5828629732131958, "answer_score": 0.3914900034666061, "sibling_qid": "CHE-2025-11-0221-Q004", "sibling_text": "checks on conrod bolts", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What checks and tests are carried out on connecting rod bolts? Why NDT, why check elongation, what is the maximum limit, and which section tends to shear off?", "cross_family": true } ] }, { "qid": "CHE-2026-05-0633-Q001", "text": "What type of ship?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2026-05-0633", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.816957414150238, "sibling_score": 0.816957414150238, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.7905703186988831, "sibling_score": 0.7905703186988831, "answer_score": 0.5098951458930969, "sibling_qid": "MUM-2026-02-0731-Q002", "sibling_text": "what type of ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7817984223365784, "sibling_score": 0.7817984223365784, "answer_score": 0.5349258720874787, "sibling_qid": "KOC-2026-09-2198-Q001", "sibling_text": "type a and b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "CHE-2026-05-0633-Q003", "text": "What kind of ship... What are the challenges in handling cargo in product tankers?", "family": "Cargo Ops - Tankers", "subtopic": "Oil / Chemical Tanker Operations", "tid": "CHE-2026-05-0633", "tray": "review", "candidates": [ { "answer_id": "COT-P03-06", "score": 0.7743743062019348, "sibling_score": 0.7743743062019348, "answer_score": 0.5051405370235443, "sibling_qid": "CHE-2025-08-0043-Q003", "sibling_text": "what kind of ship what are the challenges in handling cargo in product tankers", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Handling multiple cargo grades on a product tanker — challenges and controls", "cross_family": false }, { "answer_id": "TKR-TYPE-004", "score": 0.6724646091461182, "sibling_score": 0.6724646091461182, "answer_score": null, "sibling_qid": "KOL-2022-07-0662-Q005", "sibling_text": "why called product tankers type of cargo carried", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "4. Tanker cargo-type classification, examples, and sweet vs sour crude", "cross_family": false }, { "answer_id": "TKR-TYPE-001", "score": 0.6219233870506287, "sibling_score": 0.6219233870506287, "answer_score": null, "sibling_qid": "KOL-2022-09-0678-Q002", "sibling_text": "product tanker crude oil tanker difference", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "1. Crude oil tanker vs product tanker / carrier — construction and cargo-area differences", "cross_family": false } ] }, { "qid": "CHE-2026-05-0633-Q010", "text": "Arc chute ?", "family": "Electrical - Protection & Relays", "subtopic": "", "tid": "CHE-2026-05-0633", "tray": "new", "candidates": [ { "answer_id": "CBR-ARC-G-002", "score": 0.5503578186035156, "sibling_score": 0.5503578186035156, "answer_score": 0.38083826303482055, "sibling_qid": "KOC-2024-10-1410-Q007", "sibling_text": "ark chutes explain how it avoid arking", "sibling_family": "", "via": "sibling", "answer_title": "ACB construction, contacts, arc chutes, auxiliaries and VCB parts", "cross_family": false }, { "answer_id": "HV-SYS-P06-003", "score": 0.4786359369754791, "sibling_score": 0.4786359369754791, "answer_score": null, "sibling_qid": "KOC-2023-10-1292-Q005", "sibling_text": "arcing explain", "sibling_family": "", "via": "sibling", "answer_title": "Arc flash, arc blast and arcing control in HV systems", "cross_family": false }, { "answer_id": "CBR-ARC-G-001", "score": 0.4542196989059448, "sibling_score": 0.4542196989059448, "answer_score": 0.2923396944999695, "sibling_qid": "KOC-2025-11-1606-Q014", "sibling_text": "what is arcing", "sibling_family": "", "via": "sibling", "answer_title": "Arc formation, arc quenching and arc-blast hazard", "cross_family": false } ] }, { "qid": "CHE-2026-05-0634-Q006", "text": "gardboard strake? Sheer strake, stealer strake. How sheer strake is different and its purpose?", "family": "Ship Construction & Naval Architecture", "subtopic": "", "tid": "CHE-2026-05-0634", "tray": "new", "candidates": [ { "answer_id": "SHELL-PLT-B-001", "score": 0.6032763719558716, "sibling_score": 0.6032763719558716, "answer_score": 0.38142135441303254, "sibling_qid": "KOL-2019-10-0331-Q006", "sibling_text": "garboard strake sheer strake and stringer strake difference and wat propose they serve", "sibling_family": "", "via": "sibling", "answer_title": "Sheer strake — location, why strengthened, deck-edge / gunwale connection", "cross_family": false }, { "answer_id": "SHELL-PLT-B-002", "score": 0.42434293925762173, "sibling_score": null, "answer_score": 0.42434293925762173, "sibling_qid": "", "sibling_text": "stealer plate and strake nesting stealer plate one plate merging two strakes into one fitted where hull girth narrows toward the ends purpose stop strakes tapering to impractically narrow widths at bow stern reduce the number of strakes carried into the ends keep plate sizes economical weldable and inspectable", "sibling_family": "", "via": "answer_title", "answer_title": "Stealer plate and strake nesting", "cross_family": false }, { "answer_id": "BULWARK-004", "score": 0.36597214341163636, "sibling_score": null, "answer_score": 0.36597214341163636, "sibling_qid": "", "sibling_text": "what is a gunwale and how does it relate to the bulwark and deck side railings gunwale the junction of the sheerstrake top side strake and the stringer plate outboard deck strake the top edge of the ship s side at deck level above it sit the deck side railings a solid bulwark or open guard rails load line reg 25", "sibling_family": "", "via": "answer_title", "answer_title": "What is a gunwale, and how does it relate to the bulwark and deck-side railings?", "cross_family": false } ] }, { "qid": "CHE-2026-05-0634-Q010", "text": "oily water pumping criteria in special and outside special area. ", "family": "MARPOL - Annex I (Oil)", "subtopic": "Oil Discharge Criteria", "tid": "CHE-2026-05-0634", "tray": "review", "candidates": [ { "answer_id": "ODC-008", "score": 0.6581144332885742, "sibling_score": 0.6581144332885742, "answer_score": 0.4774658620357513, "sibling_qid": "KOL-2021-10-0565-Q002", "sibling_text": "oil discharge criteria outside special area 5 points", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Cargo-area discharge criteria for an oil tanker — outside a special area", "cross_family": false }, { "answer_id": "ODC-003", "score": 0.5940849184989929, "sibling_score": 0.5940849184989929, "answer_score": 0.43690410256385803, "sibling_qid": "CHE-2026-08-0666-Q008", "sibling_text": "e r bilge discharge criteria both in outside and inside special area", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Machinery-space bilge discharge inside a special area — and the difference from outside", "cross_family": false }, { "answer_id": "ODC-002", "score": 0.5629396438598633, "sibling_score": 0.5629396438598633, "answer_score": null, "sibling_qid": "KOL-2025-07-0994-Q002", "sibling_text": "discharge criteria for bilges from machinary spaces outside special area", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Machinery-space (engine room) bilge discharge criteria — outside a special area", "cross_family": false } ] }, { "qid": "CHE-2026-05-0634-Q015", "text": "types of induction motor speed control, draw and explain cascade speed control?", "family": "Electrical - Motors & Starters", "subtopic": "Induction Motor (General / Working)", "tid": "CHE-2026-05-0634", "tray": "review", "candidates": [ { "answer_id": "IM-TSS-P03-FINAL-1-001", "score": 0.7435707449913025, "sibling_score": 0.7435707449913025, "answer_score": 0.5643718093633652, "sibling_qid": "KOL-2026-01-2949-Q006", "sibling_text": "types of speed control for induction motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Speed control of induction / AC motors — methods and onboard use", "cross_family": false }, { "answer_id": "CYC-599-004", "score": 0.5425286054611206, "sibling_score": null, "answer_score": 0.5425286054611206, "sibling_qid": "", "sibling_text": "explain the cycloconverter and synchroconverter with diagrams what are their applications and how is propulsion speed controlled with them cyclo diagram board phase shifting transformer three anti parallel bridge pairs stator lci diagram board transformer rectifier dc link reactor inverter stator with rotor position sensor", "sibling_family": "", "via": "answer_title", "answer_title": "Explain the cycloconverter and synchroconverter with diagrams. What are their applications, and how is propulsion speed controlled with them?", "cross_family": false }, { "answer_id": "INV-VFD-P03-001", "score": 0.537951523065567, "sibling_score": null, "answer_score": 0.537951523065567, "sibling_qid": "", "sibling_text": "speed control of an ac induction motor by frequency vfd ns 120f p synchronous speed actual n ns 1 s slip s small at full load three ways to change speed vary frequency vary poles or vary slip the vfd varies frequency", "sibling_family": "", "via": "answer_title", "answer_title": "Speed control of an AC induction motor by frequency / VFD", "cross_family": false } ] }, { "qid": "CHE-2026-05-0635-Q008", "text": "If now wages what is Ter to report in mlc?", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "CHE-2026-05-0635", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-010", "score": 0.5795599222183228, "sibling_score": 0.5795599222183228, "answer_score": null, "sibling_qid": "MUM-2025-11-0573-Q004", "sibling_text": "how are wages set under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "SEA, the CBA parties, and how wages are set — action on non-payment", "cross_family": false }, { "answer_id": "MLC-WRH-B-002", "score": 0.49311137199401855, "sibling_score": 0.49311137199401855, "answer_score": 0.25323204100131985, "sibling_qid": "MUM-2022-07-0027-Q005", "sibling_text": "mlc 2006 wages rest hours", "sibling_family": "MLC", "via": "sibling", "answer_title": "Work and rest hours under MLC — the criteria, the weekly limit, the intervals", "cross_family": false }, { "answer_id": "MLC-WRH-B-007", "score": 0.3671543002128601, "sibling_score": 0.3671543002128601, "answer_score": null, "sibling_qid": "MUM-2026-01-0701-Q002", "sibling_text": "detainable deficiency of mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false } ] }, { "qid": "CHE-2026-05-0635-Q009", "text": "what is eeoi epdi seemp and implementation date to what standard eexi should meet? Xquestions? Po:- what is purpose of Seemp?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "EEDI / EEXI / CII / SEEMP", "tid": "CHE-2026-05-0635", "tray": "new", "candidates": [ { "answer_id": "SEEMP-123-B-002", "score": 0.5446661114692688, "sibling_score": 0.5446661114692688, "answer_score": null, "sibling_qid": "KOL-2023-08-0763-Q010", "sibling_text": "what is seemp how you will implement it tell in 4 steps why eiapp is given if you have iapp", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP in practice — implementation and energy-efficiency measures", "cross_family": false }, { "answer_id": "EECS-007", "score": 0.5396071076393127, "sibling_score": 0.5396071076393127, "answer_score": 0.3737040445208549, "sibling_qid": "KOL-2017-01-0054-Q005", "sibling_text": "what are the two mandatory files under eedi and eeoi and seemp", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "07. EEDI, EEOI and SEEMP — and how each applies on board", "cross_family": false }, { "answer_id": "EEDI-A-002", "score": 0.533295750617981, "sibling_score": 0.533295750617981, "answer_score": null, "sibling_qid": "MUM-2022-12-0074-Q009", "sibling_text": "what is eedi eexi ieec details", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "The EEDI Technical File and the IEEC documentation", "cross_family": false } ] }, { "qid": "CHE-2026-05-0636-Q001", "text": "Diff Elfi valve and elva valve ?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "ELFI", "tid": "CHE-2026-05-0636", "tray": "new", "candidates": [ { "answer_id": "FIVA-220-001", "score": 0.5186620950698853, "sibling_score": 0.5186620950698853, "answer_score": null, "sibling_qid": "MUM-2025-07-2813-Q005", "sibling_text": "fiva valve", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "FIVA valve — construction, function and basic operation", "cross_family": false }, { "answer_id": "FIVA-220-002", "score": 0.5172693133354187, "sibling_score": 0.5172693133354187, "answer_score": null, "sibling_qid": "KOL-2023-07-1747-Q008", "sibling_text": "fiva elfi elva operation", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "FIVA control of fuel injection — timing, quantity and actuation", "cross_family": false }, { "answer_id": "MEB-MEC-P03-001", "score": 0.49484238028526306, "sibling_score": 0.49484238028526306, "answer_score": null, "sibling_qid": "KOL-2023-02-4019-Q009", "sibling_text": "fiva elfi valve does me b has ccu", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "ME-B vs ME-C — the core difference", "cross_family": true } ] }, { "qid": "CHE-2026-05-0636-Q003", "text": "Explain abt elfi and fo booster ?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "ELFI", "tid": "CHE-2026-05-0636", "tray": "new", "candidates": [ { "answer_id": "FIVA-220-002", "score": 0.451598584651947, "sibling_score": 0.451598584651947, "answer_score": null, "sibling_qid": "KOL-2023-07-1747-Q008", "sibling_text": "fiva elfi elva operation", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "FIVA control of fuel injection — timing, quantity and actuation", "cross_family": false }, { "answer_id": "CR-248-002", "score": 0.348564475774765, "sibling_score": 0.348564475774765, "answer_score": null, "sibling_qid": "CHE-2025-08-0513-Q004", "sibling_text": "me engine fuel regulation happening booster unit to cylinder", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How fuel is injected in electronically controlled ME / RT-flex engines — how rail or hydraulic pressure produces injection", "cross_family": false }, { "answer_id": "VIT-MECH-A-002", "score": 0.34795263409614563, "sibling_score": 0.34795263409614563, "answer_score": null, "sibling_qid": "KOL-2023-03-1730-Q001", "sibling_text": "what is vit purpose how to reduce sfoc how it is done how to achieve lots of cross", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How VIT works — varying the start of injection on the fuel pump", "cross_family": false } ] }, { "qid": "CHE-2026-05-0636-Q007", "text": "ME LDCL and why MAN stopped to use This ?", "family": "2-Stroke", "subtopic": "LDCL", "tid": "CHE-2026-05-0636", "tray": "new", "candidates": [ { "answer_id": "CYL-LUB-A-004", "score": 0.5020948052406311, "sibling_score": 0.5020948052406311, "answer_score": null, "sibling_qid": "KOC-2026-09-2169-Q002", "sibling_text": "what is ldcl", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Types of cylinder lubrication system", "cross_family": true }, { "answer_id": "IGAT-583-004", "score": 0.44582295417785645, "sibling_score": 0.44582295417785645, "answer_score": null, "sibling_qid": "CHE-2026-05-0641-Q002", "sibling_text": "ldcl y and failure", "sibling_family": "2-Stroke-jacket water system", "via": "sibling", "answer_title": "As Second Engineer, what actions do you take if the inert gas plant of a crude oil tanker is repeatedly tripping on IG high temperature?", "cross_family": true }, { "answer_id": "CLC-CIV-A-002", "score": 0.3091968297958374, "sibling_score": 0.3091968297958374, "answer_score": 0.18278531581163407, "sibling_qid": "KOL-2024-09-0863-Q005", "sibling_text": "clc 69 79 sdr", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "CLC liability limits, SDR values and amendments", "cross_family": true } ] }, { "qid": "CHE-2026-05-0636-Q011", "text": "After astern what checks will u do in engine as 2/e?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "CHE-2026-05-0636", "tray": "new", "candidates": [ { "answer_id": "AEDEC-291-004", "score": 0.570906400680542, "sibling_score": 0.570906400680542, "answer_score": null, "sibling_qid": "KOL-2019-11-3298-Q002", "sibling_text": "ae full oh carried out ae running on no load what all things u will check as 2nd eng not satisfied with answer", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "4. Checks on no-load and before taking load", "cross_family": true }, { "answer_id": "AEDEC-291-003", "score": 0.545081615447998, "sibling_score": 0.545081615447998, "answer_score": 0.424862802028656, "sibling_qid": "KOL-2019-06-3246-Q004", "sibling_text": "starting checks as 2e after ae decarb", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "3. Pre-start checks after decarb / recommissioning", "cross_family": true }, { "answer_id": "PROP-PN-C-003", "score": 0.5277293920516968, "sibling_score": 0.5277293920516968, "answer_score": null, "sibling_qid": "KOC-2024-10-1874-Q002", "sibling_text": "rudder and propeller checks as 2e", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Drydock propeller inspection — checks and repairs", "cross_family": true } ] }, { "qid": "CHE-2026-05-0636-Q012", "text": "Boiler circulating pump vertical and horizontal alignment ?", "family": "Pumps - Centrifugal & PD", "subtopic": "Pump Alignment", "tid": "CHE-2026-05-0636", "tray": "review", "candidates": [ { "answer_id": "PAL-620-001", "score": 0.7733258605003357, "sibling_score": 0.7733258605003357, "answer_score": 0.5292638719081878, "sibling_qid": "MUM-2025-11-2494-Q004", "sibling_text": "boiler water circulating pump aligning the system", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "How do you check and set the alignment between a pump and its motor? Horizontal centrifugal pump — where the dial gauge goes and what values apply.", "cross_family": false }, { "answer_id": "PCD-P02-03", "score": 0.6775900721549988, "sibling_score": 0.6775900721549988, "answer_score": null, "sibling_qid": "KOL-2017-07-2143-Q002", "sibling_text": "boiler water feed pump type what arrangement is there to take axial thrust", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Boiler feed pump — type, axial thrust, and how high pressure is generated", "cross_family": false }, { "answer_id": "PAL-620-002", "score": 0.48442379534244534, "sibling_score": null, "answer_score": 0.48442379534244534, "sibling_qid": "", "sibling_text": "how do you align and refit a pump and motor set after an overhaul and what checks apply the pump vibrates after overhaul reasons and actions refit order clean inspect faces check rotor balance and shaft run out wear ring and seal clearances per maker bearings and coupling bed down and soft foot check align bar over prove rotation run vibration after overhaul suspects in order misalignment first th", "sibling_family": "", "via": "answer_title", "answer_title": "How do you align and refit a pump and motor set after an overhaul, and what checks apply? The pump vibrates after overhaul — reasons and actions.", "cross_family": false } ] }, { "qid": "CHE-2026-05-0636-Q013", "text": "Accumulator N2 charging procedures ? In Framo system reasons for no pressure in the system what checks ?", "family": "Steering Gear & Hydraulics", "subtopic": "Steering Gear System", "tid": "CHE-2026-05-0636", "tray": "review", "candidates": [ { "answer_id": "ALPHA-LUB-A-003", "score": 0.6555802226066589, "sibling_score": 0.6555802226066589, "answer_score": null, "sibling_qid": "CHE-2026-05-0594-Q003", "sibling_text": "alpha lubri nitrogen accumulator charging how much bar accumulation pressure test internal and external tev why", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Alpha lubricator overhaul, checks and local maintenance", "cross_family": true }, { "answer_id": "REEF-COMP-001", "score": 0.5956764221191406, "sibling_score": 0.5956764221191406, "answer_score": null, "sibling_qid": "MUM-2026-05-3285-Q008", "sibling_text": "refer compressor charging precautions", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Reefer/AC compressor safeties and cut-outs — safety valve, HP and LP cut-outs", "cross_family": true }, { "answer_id": "DCP-FIXED-A-003", "score": 0.5936663150787354, "sibling_score": 0.5936663150787354, "answer_score": null, "sibling_qid": "KOC-2023-10-0233-Q003", "sibling_text": "fixed dcp system draw and explain relief valve dcp contents n2 bottle pressure", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Capacities, pressures, relief settings, regulations and calculation", "cross_family": true } ] }, { "qid": "CHE-2026-05-0636-Q015", "text": "N2 padding and what system u have onboard? PO --deciding", "family": "Dual Fuel / Gas Systems", "subtopic": "", "tid": "CHE-2026-05-0636", "tray": "new", "candidates": [ { "answer_id": "COT-P02-01", "score": 0.4276847839355469, "sibling_score": 0.4276847839355469, "answer_score": null, "sibling_qid": "MUM-2026-08-3860-Q007", "sibling_text": "ig system onboard", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Draw and explain the complete tanker inert-gas system from gas production to the cargo tanks, identifying the main plant, control and deck components.", "cross_family": true }, { "answer_id": "ENR-P02B-001", "score": 0.41394513845443726, "sibling_score": 0.41394513845443726, "answer_score": null, "sibling_qid": "KOL-2022-03-2547-Q001", "sibling_text": "neutral system type of neutral system and their advantages on your ship which type of neutral system", "sibling_family": "", "via": "sibling", "answer_title": "Ship’s earthing / distribution system — insulated LV neutral, earthed (Class-approved) HV neutral", "cross_family": false }, { "answer_id": "FOAM-P02-001", "score": 0.4087354838848114, "sibling_score": 0.4087354838848114, "answer_score": null, "sibling_qid": "MUM-2023-09-0126-Q002S2", "sibling_text": "system on deck low expansion ratio how foam prollent work", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Draw and explain the fixed deck foam firefighting system used on a tanker.", "cross_family": true } ] }, { "qid": "CHE-2026-05-0636-Q017", "text": "Why no proper penetrations", "family": "Electrical - Generator & Alternator", "subtopic": "AVR / Excitation", "tid": "CHE-2026-05-0636", "tray": "new", "candidates": [ { "answer_id": "WELD-DEF-004", "score": 0.5552200675010681, "sibling_score": 0.5552200675010681, "answer_score": 0.42818787693977356, "sibling_qid": "KOL-2019-11-1494-Q003", "sibling_text": "excessive and insufficient penetration effects", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Effects of excessive and insufficient penetration", "cross_family": true }, { "answer_id": "WELD-DEF-003", "score": 0.4015887379646301, "sibling_score": 0.4015887379646301, "answer_score": 0.3233001798391342, "sibling_qid": "KOL-2025-07-1992-Q008", "sibling_text": "under cut in welding definition how to find the penetration of welding", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Undercut and penetration — causes, detection, rectification", "cross_family": true }, { "answer_id": "LOP-582-001", "score": 0.38590413331985474, "sibling_score": 0.38590413331985474, "answer_score": null, "sibling_qid": "MUM-2026-04-2670-Q009", "sibling_text": "viscosity low reasons too much cross in each question", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What are the reasons for low lubricating-oil viscosity?", "cross_family": true } ] }, { "qid": "CHE-2026-05-0636-Q018", "text": "How u will know the current", "family": "MARPOL - General & Compliance", "subtopic": "Bunker Sample Storage", "tid": "CHE-2026-05-0636", "tray": "new", "candidates": [ { "answer_id": "BUNK-SAMP-004", "score": 0.5047597885131836, "sibling_score": 0.5047597885131836, "answer_score": null, "sibling_qid": "KOC-2025-02-2060-Q023", "sibling_text": "how will you know", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Sample container, material, quantity, marking and bottles", "cross_family": false }, { "answer_id": "MSB-ESB-D-001", "score": 0.4619449973106384, "sibling_score": 0.4619449973106384, "answer_score": null, "sibling_qid": "MUM-2026-02-0790-Q007", "sibling_text": "how will u know by seeing from where the power is coming", "sibling_family": "", "via": "sibling", "answer_title": "Main & emergency switchboards: function, construction & ship power distribution", "cross_family": false }, { "answer_id": "ICCP-119-P01-003", "score": 0.4267333745956421, "sibling_score": 0.4267333745956421, "answer_score": null, "sibling_qid": "MUM-2022-09-1356-Q005", "sibling_text": "iccp values means current some more not remember", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP values, impressed-current meaning, anode/cathode roles and materials", "cross_family": true } ] }, { "qid": "CHE-2026-05-0637-Q009", "text": "PMS? Is it comes under MLC?", "family": "ISM Code", "subtopic": "", "tid": "CHE-2026-05-0637", "tray": "new", "candidates": [ { "answer_id": "ISMNC-002", "score": 0.5097242593765259, "sibling_score": 0.5097242593765259, "answer_score": null, "sibling_qid": "MUM-2026-01-0685-Q005", "sibling_text": "mlc mnc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a major non-conformity under the ISM Code? Give the definition and name some.", "cross_family": false }, { "answer_id": "PMS-392-002", "score": 0.48668372631073, "sibling_score": 0.48668372631073, "answer_score": 0.32303976714611055, "sibling_qid": "KOL-2020-11-1561-Q011", "sibling_text": "pms as per ism code", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "How is PMS linked with the ISM Code and SOLAS maintenance requirements?", "cross_family": true }, { "answer_id": "IMO-CC-P01-001", "score": 0.4758191704750061, "sibling_score": 0.4758191704750061, "answer_score": null, "sibling_qid": "KOC-2024-11-0464-Q004", "sibling_text": "mepc and msc comes under which section in lmo", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Explain the structure and organs of IMO — Assembly, Council, Committees and Secretariat.", "cross_family": true } ] }, { "qid": "CHE-2026-05-0638-Q001", "text": "Type of engine ?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "CHE-2026-05-0638", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.8002732396125793, "sibling_score": 0.8002732396125793, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.7925992608070374, "sibling_score": 0.7925992608070374, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-001", "score": 0.45173870921134945, "sibling_score": null, "answer_score": 0.45173870921134945, "sibling_qid": "", "sibling_text": "1 turbocharger type main engine vs generator engine compressor is centrifugal in both cases only the turbine type differs large slow speed main engine axial flow turbine single stage constant pressure system", "sibling_family": "", "via": "answer_title", "answer_title": "1. Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "CHE-2026-05-0639-Q001", "text": "How ME fuel injection happening ?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Injection System", "tid": "CHE-2026-05-0639", "tray": "review", "candidates": [ { "answer_id": "FIS-221-002", "score": 0.7394502758979797, "sibling_score": 0.7394502758979797, "answer_score": 0.5752577185630798, "sibling_qid": "MUM-2026-06-3638-Q003", "sibling_text": "how fuel injection happens in me c", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How fuel injection takes place in an ME / ME-C / ME-B engine", "cross_family": false }, { "answer_id": "FIVA-220-002", "score": 0.7230568528175354, "sibling_score": 0.7230568528175354, "answer_score": null, "sibling_qid": "CHE-2026-05-0541-Q002", "sibling_text": "me fuel injection process explain in detail", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "FIVA control of fuel injection — timing, quantity and actuation", "cross_family": false }, { "answer_id": "EICU-MAN-P01-003", "score": 0.7222617268562317, "sibling_score": 0.7222617268562317, "answer_score": null, "sibling_qid": "MUM-2026-05-3248-Q004", "sibling_text": "how fuel injection controlled in me", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Main-engine manoeuvring sequence and emergency manoeuvring", "cross_family": false } ] }, { "qid": "CHE-2026-05-0639-Q004", "text": "Accumulation pressure test?", "family": "Boilers - Safety & Survey", "subtopic": "Accumulation Test", "tid": "CHE-2026-05-0639", "tray": "review", "candidates": [ { "answer_id": "ACCT-583-A-001", "score": 0.8647571802139282, "sibling_score": 0.8647571802139282, "answer_score": 0.5073440134525299, "sibling_qid": "MUM-2026-06-3355-Q018", "sibling_text": "accumulation of pressure test", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Explain the boiler accumulation pressure test — what it is, its purpose, and how it is carried out (including when and at what interval)", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.8173992037773132, "sibling_score": 0.8173992037773132, "answer_score": 0.5137427687644959, "sibling_qid": "KOC-2024-12-1883-Q001", "sibling_text": "accumulation pressure test", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-003", "score": 0.5159893095493316, "sibling_score": null, "answer_score": 0.5159893095493316, "sibling_qid": "", "sibling_text": "the accumulation test and the safety valve required lift how lift and capacity are verified and why accumulation must stay inside the limit popping test proves setting accumulation test proves installed relieving capacity not two versions of one test sizing the class discharge formula sizes the aggregate valve area from the maker s specified peak evaporation using a constant for the valve type", "sibling_family": "", "via": "answer_title", "answer_title": "The accumulation test and the safety valve — required lift, how lift and capacity are verified, and why accumulation must stay inside the limit", "cross_family": false } ] }, { "qid": "CHE-2026-05-0639-Q005", "text": "What is primary air secondary air?", "family": "Boilers - Operations & Firing", "subtopic": "Burner / Firing / Soot Blow", "tid": "CHE-2026-05-0639", "tray": "new", "candidates": [ { "answer_id": "BFS-257-003", "score": 0.5413970947265625, "sibling_score": 0.5413970947265625, "answer_score": 0.4383185386657715, "sibling_qid": "MUM-2026-06-3590-Q003", "sibling_text": "use of primary and secondary air in boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Primary / secondary flame and the purpose of the air register", "cross_family": false }, { "answer_id": "BURNER-TYPE-002", "score": 0.5121709108352661, "sibling_score": 0.5121709108352661, "answer_score": null, "sibling_qid": "MUM-2026-07-3848-Q007", "sibling_text": "turn down ratio comparison of various types of burner cross questions primary secondary tertiary air", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Burner types compared, and primary, secondary and tertiary air", "cross_family": false }, { "answer_id": "BFEYE-340-003", "score": 0.4824526906013489, "sibling_score": 0.4824526906013489, "answer_score": null, "sibling_qid": "KOL-2022-01-4001-Q004", "sibling_text": "primary and secondary flame", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler firing / ignition sequence: pilot burner, primary and secondary flame, ignition transformer", "cross_family": false } ] }, { "qid": "CHE-2026-05-0639-Q006", "text": "LDCL draw and explain ?", "family": "2-Stroke-jacket water system", "subtopic": "LDCL", "tid": "CHE-2026-05-0639", "tray": "new", "candidates": [ { "answer_id": "DCP-FIXED-A-001", "score": 0.5626513957977295, "sibling_score": 0.5626513957977295, "answer_score": null, "sibling_qid": "MUM-2026-07-3796-Q001", "sibling_text": "draw explain dcp", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Draw and explain the fixed DCP/dry-powder deck fire-fighting system", "cross_family": true }, { "answer_id": "XFMR-THY-D-001", "score": 0.5112220048904419, "sibling_score": 0.5112220048904419, "answer_score": null, "sibling_qid": "CHE-2025-10-0304-Q007", "sibling_text": "draw and explain", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Transformer — principle and working", "cross_family": true }, { "answer_id": "ICCP-119-P01-002", "score": 0.5021837949752808, "sibling_score": 0.5021837949752808, "answer_score": null, "sibling_qid": "KOC-2024-12-1449-Q005", "sibling_text": "iccp draw and explain", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP circuit / control arrangement, construction and main components", "cross_family": true } ] }, { "qid": "CHE-2026-05-0639-Q012", "text": "VEC purpose?", "family": "2-Stroke - Exhaust, Valve & Starting Air", "subtopic": "EXHAUST VALE", "tid": "CHE-2026-05-0639", "tray": "review", "candidates": [ { "answer_id": "EXHV-080-BF37-001", "score": 0.6839491128921509, "sibling_score": 0.6839491128921509, "answer_score": null, "sibling_qid": "KOL-2023-09-1755-Q002", "sibling_text": "advantage of vec", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "What is variable exhaust valve closing (VEC)? Components and advantages.", "cross_family": false }, { "answer_id": "ETP-344-P03-011", "score": 0.674049437046051, "sibling_score": 0.674049437046051, "answer_score": 0.3302217364311218, "sibling_qid": "CHE-2026-03-0250-Q005", "sibling_text": "what is vec", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "VEC — Variable Exhaust valve Closing", "cross_family": true }, { "answer_id": "VOC-MGT-003", "score": 0.6736115217208862, "sibling_score": 0.6736115217208862, "answer_score": 0.3015423953533172, "sibling_qid": "MUM-2025-12-1236-Q004", "sibling_text": "what is vec", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Managing and controlling VOC - VECS and onboard measures", "cross_family": true } ] }, { "qid": "CHE-2026-05-0640-Q002S2", "text": "Explain DOL starter? Draw?", "family": "Electrical - Motors & Starters", "subtopic": "DOL Starter", "tid": "CHE-2026-05-0640", "tray": "review", "candidates": [ { "answer_id": "STR-DEC-A-001", "score": 0.7304781079292297, "sibling_score": 0.7304781079292297, "answer_score": null, "sibling_qid": "KOC-2025-02-1484-Q008", "sibling_text": "draw and explain dol starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "SDST-A-001", "score": 0.6754780411720276, "sibling_score": 0.6754780411720276, "answer_score": 0.3164189264178276, "sibling_qid": "KOC-2025-01-1459-Q002", "sibling_text": "start delta starter draw explain", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false }, { "answer_id": "STARTER-DEC-B-002", "score": 0.6598499417304993, "sibling_score": 0.6598499417304993, "answer_score": null, "sibling_qid": "KOL-2026-04-2984-Q002", "sibling_text": "explain dol starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Why a starter is needed & reducing starting current", "cross_family": false } ] }, { "qid": "CHE-2026-05-0640-Q002S2S2", "text": "Explain Auto transformer starter?", "family": "Electrical - Motors & Starters", "subtopic": "Auto-Transformer Starter", "tid": "CHE-2026-05-0640", "tray": "review", "candidates": [ { "answer_id": "AUTOTX-STR-001", "score": 0.7631023526191711, "sibling_score": 0.7631023526191711, "answer_score": 0.5127788364887237, "sibling_qid": "KOC-2026-08-2157-Q006", "sibling_text": "explain auto transformer starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "1. Draw, construct and explain the auto-transformer starter", "cross_family": false }, { "answer_id": "IMSP-003", "score": 0.7350998520851135, "sibling_score": 0.7350998520851135, "answer_score": 0.5735741555690765, "sibling_qid": "MUM-2022-03-1326-Q007", "sibling_text": "auto transformer starter in detail", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Explain the auto-transformer starter in detail.", "cross_family": false }, { "answer_id": "AUTOTX-STR-002", "score": 0.6603041291236877, "sibling_score": 0.6603041291236877, "answer_score": null, "sibling_qid": "KOL-2021-12-2522-Q001", "sibling_text": "auto transformer starting how it is reducing voltage", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "2. How it reduces starting voltage and current (tap settings)", "cross_family": false } ] }, { "qid": "CHE-2026-05-0641-Q003", "text": "crankshaft deflection what u check?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft Deflection", "tid": "CHE-2026-05-0641", "tray": "review", "candidates": [ { "answer_id": "CSD-BF036-003", "score": 0.8146960139274597, "sibling_score": 0.8146960139274597, "answer_score": null, "sibling_qid": "MUM-2025-12-2901-Q010", "sibling_text": "crankshaft deflection results how to verify", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "A 3/E has handed you the deflection readings — how do you verify they were taken correctly?", "cross_family": false }, { "answer_id": "CSD-BF036-002", "score": 0.8100705742835999, "sibling_score": 0.8100705742835999, "answer_score": null, "sibling_qid": "MUM-2023-06-2176-Q004", "sibling_text": "me crankshaft deflection pre checks", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "How do you take a crankshaft deflection — pre-checks, and instructing the 3/E?", "cross_family": false }, { "answer_id": "CRK-DEFL-001", "score": 0.8068552613258362, "sibling_score": 0.8068552613258362, "answer_score": 0.5870327800512314, "sibling_qid": "KOL-2017-08-1316-Q004", "sibling_text": "important parameters to check prior taking crank shaft deflection", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Purpose, timing and scope of crankshaft deflection", "cross_family": false } ] }, { "qid": "CHE-2026-05-0641-Q004", "text": "ccu and eicu fiva failure?", "family": "2-Stroke - Reversing & Maneuvering", "subtopic": "EICU / Manoeuvring System", "tid": "CHE-2026-05-0641", "tray": "new", "candidates": [ { "answer_id": "EICU-MAN-P01-004", "score": 0.59555983543396, "sibling_score": 0.59555983543396, "answer_score": 0.38989717960357667, "sibling_qid": "KOC-2026-09-2205-Q017", "sibling_text": "ccu failure happens", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Control-unit failure — CCU / ECU / EICU: can you still run the engine?", "cross_family": false }, { "answer_id": "MEB-MEC-P03-002", "score": 0.49854034185409546, "sibling_score": 0.49854034185409546, "answer_score": null, "sibling_qid": "KOL-2025-12-4074-Q004", "sibling_text": "ecu ccu fiva", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "ME camless control architecture — ECS, CCU, EICU, MPC", "cross_family": true }, { "answer_id": "MEB-MEC-P03-001", "score": 0.47713252902030945, "sibling_score": 0.47713252902030945, "answer_score": null, "sibling_qid": "KOL-2023-02-4019-Q009", "sibling_text": "fiva elfi valve does me b has ccu", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "ME-B vs ME-C — the core difference", "cross_family": true } ] }, { "qid": "CHE-2026-05-0642-Q002", "text": "Countershunk screw ?", "family": "Workshop & Welding", "subtopic": "Nut-Bolt Loosening / Locking Arrangements", "tid": "CHE-2026-05-0642", "tray": "new", "candidates": [ { "answer_id": "BBR-005", "score": 0.576213538646698, "sibling_score": 0.576213538646698, "answer_score": 0.4076765775680542, "sibling_qid": "KOC-2024-11-1016-Q004", "sibling_text": "pinching screws", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "What are pinching (jacking) screws and how are they used in workshop removal/holding work?", "cross_family": false }, { "answer_id": "WTGS-325-003", "score": 0.5563870072364807, "sibling_score": 0.5563870072364807, "answer_score": null, "sibling_qid": "KOL-2016-08-2995-Q002", "sibling_text": "screw driver twisted what to do", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Ordering hand tools: hammer, file, screwdriver, chisel, hacksaw", "cross_family": false }, { "answer_id": "LATHE-TD-003", "score": 0.5056484341621399, "sibling_score": 0.5056484341621399, "answer_score": null, "sibling_qid": "KOL-2021-11-3489-Q003", "sibling_text": "small stud how to thread made", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Thread cutting — lathe, taps & dies, TPI and tapping-drill size", "cross_family": false } ] }, { "qid": "CHE-2026-05-0643-Q002", "text": "Loss of excitation and how to bring back", "family": "Electrical - Generator & Alternator", "subtopic": "AVR / Excitation", "tid": "CHE-2026-05-0643", "tray": "review", "candidates": [ { "answer_id": "AVR-EXC-G-003", "score": 0.6526069045066833, "sibling_score": 0.6526069045066833, "answer_score": 0.32481039613485335, "sibling_qid": "MUM-2025-11-1782-Q009", "sibling_text": "what will happen if excitation is lost", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Loss or reduction of excitation: effect and action", "cross_family": false }, { "answer_id": "RES-MAG-004", "score": 0.5285971164703369, "sibling_score": 0.5285971164703369, "answer_score": null, "sibling_qid": "KOC-2025-03-1508-Q004", "sibling_text": "excitation is lost what to do he accepted new msb designs with flashing arrangement which i found in one of my ships but he tried to go inside that arrangement suddenly i told about flashing with actual battery so he needs only the basic flashing procedure", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Field flashing — the procedure, where the battery connects, which terminal, and the precautions", "cross_family": false }, { "answer_id": "AVR-EXC-G-001", "score": 0.5193498730659485, "sibling_score": 0.5193498730659485, "answer_score": null, "sibling_qid": "MUM-2026-03-2021-Q001", "sibling_text": "what is excitation", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "What excitation is, and the types used onboard", "cross_family": false } ] }, { "qid": "CHE-2026-05-0643-Q003", "text": "Diode test", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Zener / Diode / Rectifier", "tid": "CHE-2026-05-0643", "tray": "review", "candidates": [ { "answer_id": "EPC-P01-02", "score": 0.7324616312980652, "sibling_score": 0.7324616312980652, "answer_score": null, "sibling_qid": "CHE-2026-05-0627-Q008", "sibling_text": "diode testing", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Types of diodes, and where diodes are used on board", "cross_family": false }, { "answer_id": "EPC-P02-01", "score": 0.6374955177307129, "sibling_score": 0.6374955177307129, "answer_score": null, "sibling_qid": "KOL-2022-08-2593-Q004", "sibling_text": "what is zener diode how diode test onboard", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a zener diode? Draw its symbol, explain its working principle, and draw and explain its characteristic curve including the zener (breakdown) voltage.", "cross_family": false }, { "answer_id": "TC-A-004", "score": 0.629309356212616, "sibling_score": 0.629309356212616, "answer_score": 0.5073754757642746, "sibling_qid": "KOC-2025-07-1544-Q003", "sibling_text": "transistor testing other than diode mode", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Testing a transistor — and testing it other than in diode mode", "cross_family": false } ] }, { "qid": "CHE-2026-05-0643-Q009", "text": "NDT types explain mpt", "family": "NDT & Material Testing", "subtopic": "NDT Methods (MPI/DPT/UT/RT)", "tid": "CHE-2026-05-0643", "tray": "review", "candidates": [ { "answer_id": "NDT-METH-P02-001", "score": 0.6540094614028931, "sibling_score": 0.6540094614028931, "answer_score": 0.2873500049114227, "sibling_qid": "KOL-2023-12-3661-Q002", "sibling_text": "types of ndt explain mpt", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "1. Magnetic Particle Inspection (MPI / MPT)", "cross_family": false }, { "answer_id": "NDT-METH-P01-002", "score": 0.5829516053199768, "sibling_score": 0.5829516053199768, "answer_score": null, "sibling_qid": "CHE-2025-07-0404-Q004", "sibling_text": "explain ndt explain dpt", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Dye penetrant test (DPT): principle, procedure, penetrant/developer properties, safety", "cross_family": false }, { "answer_id": "NDT-METH-P01-001", "score": 0.5513163805007935, "sibling_score": 0.5513163805007935, "answer_score": 0.33108641803264616, "sibling_qid": "CHE-2023-11-0391-Q003", "sibling_text": "explain ndt", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "NDT methods, NDT vs destructive testing, and onboard use", "cross_family": false } ] }, { "qid": "CHE-2026-05-0643-Q010", "text": "Gear pump shaft broken repair.", "family": "Electrical - Motors & Starters", "subtopic": "IR Test / Insulation Resistance", "tid": "CHE-2026-05-0643", "tray": "review", "candidates": [ { "answer_id": "PCD-P02-05", "score": 0.6710461378097534, "sibling_score": 0.6710461378097534, "answer_score": 0.573777824640274, "sibling_qid": "KOL-2021-07-1603-Q005", "sibling_text": "centrifugal pump shaft worn out in way of impeller coupling no spare how to make repair for temporary at least 1 month use", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Centrifugal / sea-water pump shaft repair — worn shaft, no spare", "cross_family": true }, { "answer_id": "PCD-P05-03", "score": 0.6432725787162781, "sibling_score": 0.6432725787162781, "answer_score": null, "sibling_qid": "KOC-2024-11-1879-Q002", "sibling_text": "overhauling of gear pump", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Gear pump — construction, working, backlash, tooth profile, safety valve, why not for sea water", "cross_family": true }, { "answer_id": "PCD-P03-01", "score": 0.6303195953369141, "sibling_score": 0.6303195953369141, "answer_score": null, "sibling_qid": "KOL-2022-03-3525-Q002", "sibling_text": "pump overhaul and checks stress raiser points in shaft", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Centrifugal pump overhaul — procedure, checks, clearances and survey evidence", "cross_family": true } ] }, { "qid": "CHE-2026-05-0644-Q005", "text": "how is inclination test carried out?Why is it carried out? When do you carry out inclination test(and is when the ship is new or when a major conversion/modification of ship has been done). Why is it important? (Ans it determines the cargo carrying capacity of ship).", "family": "Ship Construction & Naval Architecture", "subtopic": "", "tid": "CHE-2026-05-0644", "tray": "review", "candidates": [ { "answer_id": "SEW-DISCH-003", "score": 0.7194279432296753, "sibling_score": 0.7194279432296753, "answer_score": null, "sibling_qid": "CHE-2025-08-0044-Q004", "sibling_text": "sewage discharge regulation what is the formula for pumping rate of sewage and explain the formula 5how is inclination test carried out why is it carried out when do you carry out inclination test and is when the ship is new or when a major conversion modification of ship has been done why is it important ans it determines the cargo carrying capacity of ship", "sibling_family": "MARPOL - Annex IV (Sewage)", "via": "sibling", "answer_title": "3. Moderate-rate discharge formula for untreated sewage", "cross_family": true }, { "answer_id": "INCL-EXP-B-002", "score": 0.6529650688171387, "sibling_score": 0.6529650688171387, "answer_score": 0.5302872836589813, "sibling_qid": "MUM-2025-11-0554-Q001", "sibling_text": "inclining experiment of new ship what is checked what is stability types of stability", "sibling_family": "", "via": "sibling", "answer_title": "B2. When and for which ships the experiment is carried out", "cross_family": false }, { "answer_id": "INCL-EXP-A-001", "score": 0.6504007577896118, "sibling_score": 0.6504007577896118, "answer_score": 0.569922450184822, "sibling_qid": "KOL-2022-03-0617-Q003", "sibling_text": "describe inclining experiment on which all ships this experiment is carried out all details", "sibling_family": "", "via": "sibling", "answer_title": "What is an inclining experiment?", "cross_family": false } ] }, { "qid": "CHE-2026-05-0644-Q008", "text": "When we say mixing two oils is unstable and non-compatible, what is meant by being unstable and what is meant by being non-compatible?don't say the effects of it or indications, what is meant by those specific terms?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Lube Oil Emulsification", "tid": "CHE-2026-05-0644", "tray": "review", "candidates": [ { "answer_id": "FQCC-583-B-010", "score": 0.7097022533416748, "sibling_score": 0.7097022533416748, "answer_score": 0.569942158460617, "sibling_qid": "CHE-2026-02-0243-Q003", "sibling_text": "instability and compatibility of fuel oil not definition he is asking he is what will happen if you blend two oil he is not accepting sludge formation and filter chocking", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Stability, compatibility, asphaltenes and commingling — what happens when you blend two fuels?", "cross_family": true }, { "answer_id": "FQCC-583-A-007", "score": 0.5821918904781341, "sibling_score": null, "answer_score": 0.5821918904781341, "sibling_qid": "", "sibling_text": "compatibility stability and blending stability one fuel over time holds its asphaltenes compatibility two fuels when mixed do not drop asphaltenes different questions a stable fuel can be incompatible with another stable fuel mechanism asphaltenes are peptised by resins and carried by the aromatic fraction dilute the aromatics with paraffins or stress the fuel with heat and they flocculate agglome", "sibling_family": "", "via": "answer_title", "answer_title": "Compatibility, stability and blending", "cross_family": false }, { "answer_id": "REF-CYC-004", "score": 0.5735423564910889, "sibling_score": 0.5735423564910889, "answer_score": null, "sibling_qid": "MUM-2025-07-2331-Q002", "sibling_text": "why it is miscible in oil", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "4. Desirable properties, selection and types of refrigerant", "cross_family": true } ] }, { "qid": "CHE-2026-05-0645-Q004", "text": "sewage pumps capacity calculations ?", "family": "MARPOL - Annex IV (Sewage)", "subtopic": "", "tid": "CHE-2026-05-0645", "tray": "review", "candidates": [ { "answer_id": "SEW-DISCH-003", "score": 0.7392130494117737, "sibling_score": 0.7392130494117737, "answer_score": 0.4989761531352997, "sibling_qid": "CHE-2026-05-0644-Q004", "sibling_text": "sewage discharge regulation what is the formula for pumping rate of sewage and explain the formula", "sibling_family": "MARPOL - Annex IV (Sewage)", "via": "sibling", "answer_title": "3. Moderate-rate discharge formula for untreated sewage", "cross_family": false }, { "answer_id": "SEW-DISCH-002", "score": 0.729465663433075, "sibling_score": 0.729465663433075, "answer_score": null, "sibling_qid": "CHE-2026-05-0634-Q008", "sibling_text": "sewage pumping criteria", "sibling_family": "MARPOL - Annex IV (Sewage)", "via": "sibling", "answer_title": "2. MARPOL Annex IV sewage discharge criteria", "cross_family": false }, { "answer_id": "SEW-DISCH-008", "score": 0.669144332408905, "sibling_score": 0.669144332408905, "answer_score": 0.5555908858776092, "sibling_qid": "KOC-2023-12-1308-Q005", "sibling_text": "sewage discharge pump circuit", "sibling_family": "MARPOL - Annex IV (Sewage)", "via": "sibling", "answer_title": "8. Sewage discharge pump and circuit arrangement", "cross_family": false } ] }, { "qid": "CHE-2026-05-0645-Q009", "text": "what is Neutral earth resistance -NER ?", "family": "Electrical - Distribution & MSB", "subtopic": "High Voltage System / Earthing / Shore Supply", "tid": "CHE-2026-05-0645", "tray": "review", "candidates": [ { "answer_id": "NER-HV-P04-001", "score": 0.6702659726142883, "sibling_score": 0.6702659726142883, "answer_score": 0.535721144080162, "sibling_qid": "CHE-2026-05-0643-Q007", "sibling_text": "neutral earthing resister", "sibling_family": "Electrical - Distribution & MSB", "via": "sibling", "answer_title": "What an NER is, where it is used, and why it is fitted in HV systems", "cross_family": false }, { "answer_id": "NER-HV-P04-002", "score": 0.6613906621932983, "sibling_score": 0.6613906621932983, "answer_score": 0.5611643254756927, "sibling_qid": "CHE-2026-02-0340-Q013", "sibling_text": "earthed neutral and insulated neutral explain ner and its ohmic value", "sibling_family": "", "via": "sibling", "answer_title": "How the NER value is selected/calculated, and its construction and material", "cross_family": false }, { "answer_id": "EARTH-NEU-02A-001", "score": 0.6067222356796265, "sibling_score": 0.6067222356796265, "answer_score": 0.5227054744958878, "sibling_qid": "CHE-2026-04-0519-Q006", "sibling_text": "earthed neutral system why resistor what is the value", "sibling_family": "", "via": "sibling", "answer_title": "Earthed (neutral-earth) system — what it is, why we use it, pros and cons", "cross_family": false } ] }, { "qid": "CHE-2026-05-0646-Q002", "text": "2,accumalation pressure test?how much water level u take?", "family": "Boilers - Safety & Survey", "subtopic": "Accumulation Test", "tid": "CHE-2026-05-0646", "tray": "new", "candidates": [ { "answer_id": "ACCT-583-A-001", "score": 0.6423839926719666, "sibling_score": 0.6423839926719666, "answer_score": 0.4459817141294479, "sibling_qid": "MUM-2026-09-3962-Q001", "sibling_text": "accumulation of pressure test purpose hoe to carry out", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Explain the boiler accumulation pressure test — what it is, its purpose, and how it is carried out (including when and at what interval)", "cross_family": false }, { "answer_id": "DUS-P5-06", "score": 0.640745222568512, "sibling_score": 0.640745222568512, "answer_score": null, "sibling_qid": "KOC-2025-12-1086-Q011", "sibling_text": "db tank testing fill water till overflow or 2 4 m above normal service level whichever is greater", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "DB and ballast tank pressure testing — procedure and head", "cross_family": true }, { "answer_id": "ACCT-583-B-FINAL-1-002", "score": 0.6290999054908752, "sibling_score": 0.6290999054908752, "answer_score": null, "sibling_qid": "KOL-2026-04-3945-Q006", "sibling_text": "safety valve setting after overhaul minimum gauge glass water level how much taking initial 1 3level", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Acceptance limits and durations — the accumulation limit, the maximum test periods, and the action if the limit is exceeded", "cross_family": false } ] }, { "qid": "CHE-2026-05-0646-Q005", "text": "4,why tilting pad use in thrust bearing?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Thrust Bearing", "tid": "CHE-2026-05-0646", "tray": "review", "candidates": [ { "answer_id": "THRUST-BRG-B-003", "score": 0.7097892165184021, "sibling_score": 0.7097892165184021, "answer_score": 0.5412878453731537, "sibling_qid": "KOC-2026-05-0014-Q008", "sibling_text": "thrust bearing tilting pad", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Michell / tilting-pad / collar thrust bearing — working principle", "cross_family": false }, { "answer_id": "THRUST-BRG-B-002", "score": 0.685248076915741, "sibling_score": 0.685248076915741, "answer_score": null, "sibling_qid": "KOL-2018-12-3202-Q006", "sibling_text": "tilting pad material how thrust is taken y tilting pad", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Thrust pads — lubrication and material", "cross_family": false }, { "answer_id": "TB-BEAR-003", "score": 0.6302549839019775, "sibling_score": 0.6302549839019775, "answer_score": 0.5543301641941071, "sibling_qid": "MUM-2026-05-3077-Q001", "sibling_text": "me thrust pad arrangement why tilted pad", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Michell / tilting-pad thrust bearing — principle & oil-wedge lubrication", "cross_family": true } ] }, { "qid": "CHE-2026-05-0647-Q001", "text": "T/c nozzle checks and removal procedure ,k value ?", "family": "Turbocharger", "subtopic": "", "tid": "CHE-2026-05-0647", "tray": "new", "candidates": [ { "answer_id": "TURBO-CS-P03-014", "score": 0.5672983527183533, "sibling_score": 0.5672983527183533, "answer_score": null, "sibling_qid": "KOL-2021-08-3441-Q003", "sibling_text": "t c nozzle ring cleaning", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Routine maintenance and water-washing; nozzle-ring cleaning", "cross_family": false }, { "answer_id": "TC-KLM-330-003", "score": 0.5250425338745117, "sibling_score": 0.5250425338745117, "answer_score": 0.3849013850092888, "sibling_qid": "CHE-2025-12-0464-Q003", "sibling_text": "turbine k value and clearence checks", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Finding the K value during overhaul — procedure, and the reasons for taking it", "cross_family": false }, { "answer_id": "TC-CONST-004", "score": 0.5247724056243896, "sibling_score": 0.5247724056243896, "answer_score": null, "sibling_qid": "CHE-2026-09-3927-Q001", "sibling_text": "what all checks to be carried out on nozzle ring", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbine-side components: nozzle rings, vanes and blade fitting", "cross_family": false } ] }, { "qid": "CHE-2026-05-0647-Q005", "text": "Gear teeth inspection?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE CRANKCASE", "tid": "CHE-2026-05-0647", "tray": "new", "candidates": [ { "answer_id": "PCD-P05-03", "score": 0.5730236768722534, "sibling_score": 0.5730236768722534, "answer_score": null, "sibling_qid": "KOL-2018-04-3141-Q005", "sibling_text": "check backlash error in gears and how", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Gear pump — construction, working, backlash, tooth profile, safety valve, why not for sea water", "cross_family": true }, { "answer_id": "CRANE-ROCK-LT-003", "score": 0.566439151763916, "sibling_score": 0.566439151763916, "answer_score": null, "sibling_qid": "KOC-2023-10-0235-Q011", "sibling_text": "surveys and inspection of lifting gears", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Surveys, inspections and periodic tests on cranes and lifting gear", "cross_family": true }, { "answer_id": "AECR-651-004", "score": 0.5593112707138062, "sibling_score": 0.5593112707138062, "answer_score": null, "sibling_qid": "MUM-2022-07-0017-Q017", "sibling_text": "bottom end bearing inspection", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "How do you inspect the bottom-end bearing, and how do you take the AE big-end clearance without removing it?", "cross_family": false } ] }, { "qid": "CHE-2026-05-0647-Q009", "text": "Mig and tig ?", "family": "Workshop & Welding", "subtopic": "Plasma / Arc / TIG / MIG", "tid": "CHE-2026-05-0647", "tray": "new", "candidates": [ { "answer_id": "WELD-PATM-003", "score": 0.5937390923500061, "sibling_score": 0.5937390923500061, "answer_score": 0.3217629849910736, "sibling_qid": "KOL-2026-09-4302-Q004", "sibling_text": "mig advantage over tig", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "TIG welding – process, shielding gas, advantages, uses", "cross_family": false }, { "answer_id": "WELD-PATM-005", "score": 0.5680411458015442, "sibling_score": 0.5680411458015442, "answer_score": 0.4222474783658981, "sibling_qid": "KOL-2018-01-3118-Q005", "sibling_text": "difference between tig mig where are they used", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "TIG vs MIG – differences, uses, advantages", "cross_family": false }, { "answer_id": "WELD-PATM-004", "score": 0.3368120014667511, "sibling_score": null, "answer_score": 0.3368120014667511, "sibling_qid": "", "sibling_text": "mig welding process and applications consumable wire fed continuously electrode and filler in one semi automatic gas shield inert ar he mig on non ferrous active co ar co mag on steel", "sibling_family": "", "via": "answer_title", "answer_title": "MIG welding – process and applications", "cross_family": false } ] }, { "qid": "CHE-2026-05-0648-Q003", "text": "Stresses on propeller shaft ?", "family": "Shafting, Propeller & Rudder", "subtopic": "", "tid": "CHE-2026-05-0648", "tray": "review", "candidates": [ { "answer_id": "STT-BRG-008", "score": 0.6839364767074585, "sibling_score": 0.6839364767074585, "answer_score": null, "sibling_qid": "KOL-2026-03-1198-Q006", "sibling_text": "special arrangements of tellshaft bearing to take load of propeller", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "7. Stern tube bearings — number, size, fixing, clearance, weardown and high-temperature", "cross_family": false }, { "answer_id": "STT-BRG-002", "score": 0.6648000478744507, "sibling_score": 0.6648000478744507, "answer_score": null, "sibling_qid": "MUM-2025-08-2350-Q007", "sibling_text": "3 material of propeller shaft", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "1. Stern tube — arrangement, function, materials and types", "cross_family": false }, { "answer_id": "SPR-STERN-008", "score": 0.6609070301055908, "sibling_score": 0.6609070301055908, "answer_score": null, "sibling_qid": "CHE-2026-08-3889-Q002", "sibling_text": "stresses acting on tail shaft", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Tail/intermediate shaft material, stresses, fitted bolts & arrangement", "cross_family": false } ] }, { "qid": "CHE-2026-05-0648-Q004", "text": "What is the quantity of water during test many cross questions ?", "family": "SOLAS - Fire Safety", "subtopic": "Sprinkler / Water Mist / Hi-Fog", "tid": "CHE-2026-05-0648", "tray": "new", "candidates": [ { "answer_id": "CO2-CALC-P02-001", "score": 0.5455124974250793, "sibling_score": 0.5455124974250793, "answer_score": null, "sibling_qid": "KOL-2018-04-0167-Q002", "sibling_text": "water volume of co2 bottle", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 calculation inputs — filling ratio, bottle charge, water capacity, free-gas volume, mixing ratio", "cross_family": false }, { "answer_id": "CO2-CALC-P01-002", "score": 0.53201824426651, "sibling_score": 0.53201824426651, "answer_score": null, "sibling_qid": "KOL-2019-12-0367-Q002", "sibling_text": "no of co2 bottles calculation nd lots of cross q s", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "How is the required CO2 quantity and number of bottles calculated for an engine-room total-flooding system?", "cross_family": false }, { "answer_id": "CO2-CALC-P01-004", "score": 0.5256158113479614, "sibling_score": 0.5256158113479614, "answer_score": null, "sibling_qid": "KOL-2024-01-0803-Q001", "sibling_text": "surveyor has come onboard and tells you that your number of co2 bottles is less how would you prove to him it s according to standard wanted to know how quantity of co2 required is calculated for engine room cross question bottle weight filling ratio", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Where is the CO2 quantity specified, and how would you prove to a surveyor the bottle count is as per standard?", "cross_family": false } ] }, { "qid": "CHE-2026-05-0648-Q006", "text": "Sfoc how it is affected ?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "SFOC", "tid": "CHE-2026-05-0648", "tray": "new", "candidates": [ { "answer_id": "SFOC-003", "score": 0.5830792188644409, "sibling_score": 0.5830792188644409, "answer_score": null, "sibling_qid": "MUM-2025-10-2862-Q004", "sibling_text": "sfoc value", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What is the SFOC of your main engine? With BHP, stroke and cylinder oil consumption", "cross_family": false }, { "answer_id": "SFOC-006", "score": 0.5402973294258118, "sibling_score": 0.5402973294258118, "answer_score": 0.27990007400512695, "sibling_qid": "CHE-2026-05-0533-Q001S2", "sibling_text": "direct relation for achieving reduced sfoc", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What developments reduced fuel consumption in two-stroke engines — and what gives a direct reduction in SFOC?", "cross_family": false }, { "answer_id": "SFOC-002", "score": 0.5374800562858582, "sibling_score": 0.5374800562858582, "answer_score": null, "sibling_qid": "KOC-2025-02-1030-Q006", "sibling_text": "what is sfoc how sfoc is calculated", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "How do you calculate SFOC on board? The step-by-step procedure", "cross_family": false } ] }, { "qid": "CHE-2026-05-0648-Q007", "text": "Liner lubrication excessive and less what happens?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Cylinder Lubrication", "tid": "CHE-2026-05-0648", "tray": "new", "candidates": [ { "answer_id": "CYL-LUB-B-005", "score": 0.5776219964027405, "sibling_score": 0.5776219964027405, "answer_score": null, "sibling_qid": "CHE-2025-05-0398-Q013", "sibling_text": "what will be the liner lubrication during running in", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Running-in cylinder lubrication", "cross_family": false }, { "answer_id": "CYL-LUB-A-001", "score": 0.5538462400436401, "sibling_score": 0.5538462400436401, "answer_score": null, "sibling_qid": "MUM-2026-05-3002-Q004S2", "sibling_text": "lubrication type of lubrication in liner", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Cylinder lubrication — how it is carried out and its purpose", "cross_family": false }, { "answer_id": "CYL-LUB-B-004", "score": 0.5456179976463318, "sibling_score": 0.5456179976463318, "answer_score": 0.3837544038891792, "sibling_qid": "CHE-2025-08-0212-Q004", "sibling_text": "why liner lubrication depends on rpm and load dependent expecting more load more fuel more sulphur to neturalize so more injection", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Feed rate, over- and under-lubrication, sufficiency checks", "cross_family": false } ] }, { "qid": "CHE-2026-05-0649-Q006", "text": "⁠How to test megger? Minimum insulation resistance for motor?", "family": "Electrical - Motors & Starters", "subtopic": "IR Test / Insulation Resistance", "tid": "CHE-2026-05-0649", "tray": "review", "candidates": [ { "answer_id": "IR-TEST-B-002", "score": 0.800140917301178, "sibling_score": 0.800140917301178, "answer_score": 0.6109471768140793, "sibling_qid": "MUM-2024-07-1443-Q004", "sibling_text": "how will you check insulation resistance of induction motor test voltage working of megger", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "IR test of a low-voltage motor — the standard megger procedure", "cross_family": false }, { "answer_id": "IR-TEST-D-007", "score": 0.788486897945404, "sibling_score": 0.788486897945404, "answer_score": null, "sibling_qid": "KOC-2023-04-1253-Q006", "sibling_text": "what is meggering of motor insulation test only", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Before the test — isolation, why isolate, discharge and safety", "cross_family": false }, { "answer_id": "IRT-A-002", "score": 0.7829100489616394, "sibling_score": 0.7829100489616394, "answer_score": 0.5961652606725693, "sibling_qid": "MUM-2026-07-3687-Q008", "sibling_text": "how to take the insulation resistance of the motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Taking an IR test on a motor - isolation and procedure", "cross_family": false } ] }, { "qid": "CHE-2026-05-0650-Q003", "text": "Crank case inspection procedure,multi gas detector explain?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankcase Inspection", "tid": "CHE-2026-05-0650", "tray": "review", "candidates": [ { "answer_id": "CRKC-INSP-001", "score": 0.6871766448020935, "sibling_score": 0.6871766448020935, "answer_score": null, "sibling_qid": "CHE-2026-05-0560-Q016", "sibling_text": "procedure for crankcase inspection", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Routine main-engine crankcase inspection — checks as 2/E", "cross_family": false }, { "answer_id": "CRKC-INSP-002", "score": 0.6753445267677307, "sibling_score": 0.6753445267677307, "answer_score": null, "sibling_qid": "KOL-2022-03-1670-Q006", "sibling_text": "quick crankcase inspection", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Quick crankcase inspection after rough weather or grounding (short port stay)", "cross_family": false }, { "answer_id": "BEB-B-001", "score": 0.5161992609500885, "sibling_score": null, "answer_score": 0.5161992609500885, "sibling_qid": "", "sibling_text": "bottom end bearing survey inspection engine immobilised turning gear engaged starting air isolated and vented fuel off indicator cocks open permit to work plus enclosed space entry for the crankcase crankcase treated as an enclosed space ventilated connected services isolated locked as applicable atmosphere tested and readings recorded safe before entry no naked light turning gear movement control", "sibling_family": "", "via": "answer_title", "answer_title": "Bottom End Bearing — Survey & Inspection", "cross_family": false } ] }, { "qid": "CHE-2026-08-0651-Q001", "text": "Type of ship and engine details ?", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "CHE-2026-08-0651", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P01-001", "score": 0.8240694403648376, "sibling_score": 0.8240694403648376, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q001", "sibling_text": "type of ship sailed and engines details", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.816331148147583, "sibling_score": 0.816331148147583, "answer_score": null, "sibling_qid": "CHE-2026-04-0373-Q001S6", "sibling_text": "type of ship specification of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7523130178451538, "sibling_score": 0.7523130178451538, "answer_score": null, "sibling_qid": "KOL-2025-12-2031-Q002", "sibling_text": "type of ship and engine sailed engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "CHE-2026-08-0651-Q009", "text": "FWG scale formation reasons and how controlled ?", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "CHE-2026-08-0651", "tray": "new", "candidates": [ { "answer_id": "FWG-RO-003", "score": 0.4334437847137451, "sibling_score": 0.4334437847137451, "answer_score": null, "sibling_qid": "KOC-2026-02-1100-Q007", "sibling_text": "fwg production reduces reasons", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "The FWG is not producing enough water or its efficiency has dropped. Reasons, checks and action?", "cross_family": false }, { "answer_id": "FWG-RO-002", "score": 0.37453821301460266, "sibling_score": 0.37453821301460266, "answer_score": null, "sibling_qid": "MUM-2025-05-2289-Q004", "sibling_text": "fwg high salinity reasons", "sibling_family": "Fresh Water & Domestic Systems", "via": "sibling", "answer_title": "The FWG salinity alarm keeps sounding. What are the reasons for high salinity?", "cross_family": true }, { "answer_id": "FWG-RO-004", "score": 0.33614247739315034, "sibling_score": null, "answer_score": 0.33614247739315034, "sibling_qid": "", "sibling_text": "explain the fwg s construction the weir the feed orifice and its purpose and the jacket water temperatures weir a level control baffle holding brine over the heating tubes and directing brine flow keeps tubes submerged and limits level to prevent carryover feed orifice a fixed restriction that meters seawater feed against the vacuum draw and drops feed pressure into the shell sets the correct feed", "sibling_family": "", "via": "answer_title", "answer_title": "Explain the FWG's construction — the weir, the feed orifice and its purpose, and the jacket-water temperatures.", "cross_family": false } ] }, { "qid": "CHE-2026-08-0652-Q001", "text": "Regulation for loading limit in type 1 chemical tanker ?", "family": "Cargo Ops - Tankers", "subtopic": "Chemical Tanker Code (BCH/IBC)", "tid": "CHE-2026-08-0652", "tray": "new", "candidates": [ { "answer_id": "BCH-IBC-A-001", "score": 0.6445209383964539, "sibling_score": 0.6445209383964539, "answer_score": 0.47029590010643, "sibling_qid": "CHE-2026-03-0124-Q002", "sibling_text": "regulation for stilling in type 1 chemical tanker", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Type 1, Type 2 and Type 3 chemical tankers — the ship-type classification", "cross_family": false }, { "answer_id": "IBC-BCH-B-005", "score": 0.6216071844100952, "sibling_score": 0.6216071844100952, "answer_score": 0.5028247386217117, "sibling_qid": "CHE-2026-02-0108-Q010", "sibling_text": "constructional requirement for type 1 2 3 chemical tankers", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Type 1, 2 and 3 chemical tankers — construction and tank location", "cross_family": false }, { "answer_id": "AII-DISCH-009", "score": 0.6183252930641174, "sibling_score": 0.6183252930641174, "answer_score": null, "sibling_qid": "MUM-2026-03-0859-Q002", "sibling_text": "discharge criteria for chemical tankers 2 loadline survey preparation", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Compound examiner prompt — answer only the Annex II discharge-criteria part", "cross_family": false } ] }, { "qid": "CHE-2026-08-0653-Q004", "text": "What is brazing ?", "family": "Workshop & Welding", "subtopic": "Welding / Brazing / Soldering", "tid": "CHE-2026-08-0653", "tray": "review", "candidates": [ { "answer_id": "WELD-B-002", "score": 0.7096932530403137, "sibling_score": 0.7096932530403137, "answer_score": 0.46910899579524995, "sibling_qid": "CHE-2026-03-0488-Q004S5", "sibling_text": "what is brazing", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Brazing and soldering — procedure, flux, filler, temperature and the difference from welding", "cross_family": false }, { "answer_id": "WELD-B-003", "score": 0.6264544725418091, "sibling_score": 0.6264544725418091, "answer_score": 0.43338093161582947, "sibling_qid": "KOL-2019-07-3261-Q004", "sibling_text": "cu pipe brazing process", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Joining copper and refrigeration pipes — brazing and cold methods", "cross_family": false }, { "answer_id": "WBS-C-001", "score": 0.4644474059343338, "sibling_score": null, "answer_score": 0.4644474059343338, "sibling_qid": "", "sibling_text": "welding brazing and soldering what they are the shipboard processes and workshop safety welding fusion of the parent metal with or without filler brazing and soldering parent not melted a lower melting filler wets in by capillary action braze above 450 c solder below 450 c main shipboard processes manual metal arc smaw coated electrode oxy acetylene gas welding and cutting also tig mig mag and res", "sibling_family": "", "via": "answer_title", "answer_title": "Welding, brazing and soldering — what they are, the shipboard processes, and workshop safety", "cross_family": false } ] }, { "qid": "CHE-2026-08-0654-Q003", "text": "What are the maintenance to do on co2 bottles 10 yearly ?", "family": "SOLAS - Fire Safety", "subtopic": "CO2 System", "tid": "CHE-2026-08-0654", "tray": "review", "candidates": [ { "answer_id": "CO2-SYS-002", "score": 0.8341730237007141, "sibling_score": 0.8341730237007141, "answer_score": 0.4599249392747879, "sibling_qid": "CHE-2026-03-0487-Q009", "sibling_text": "what r the maintenance to do on co2 bottles 10 yearly", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 maintenance, inspection, testing and survey routines", "cross_family": false }, { "answer_id": "CO2-SYS-P06-001", "score": 0.46363794803619385, "sibling_score": null, "answer_score": 0.46363794803619385, "sibling_qid": "", "sibling_text": "co2 fixed system full maintenance and inspection schedule weekly to 10 yearly and the revised cylinder test regime controlling sources in order solas ii 2 and fss code chapter 5 statutory msc 1 circ 1318 rev 1 imo fixed co2 maintenance guidance 25 may 2021 in india dgs engineering circular 01 of 2022 implements it maker s manual and ship sms pms on top weekly indian dgs mmd layer msc 1 circ 1432 f", "sibling_family": "", "via": "answer_title", "answer_title": "CO2 fixed system — full maintenance and inspection schedule (weekly to 10-yearly, and the revised cylinder-test regime)", "cross_family": false }, { "answer_id": "CO2-CALC-P02-002", "score": 0.46275315284729, "sibling_score": null, "answer_score": 0.46275315284729, "sibling_qid": "", "sibling_text": "checking co2 cylinder contents and level and action on a leaking or low cylinder primary check weigh each high pressure cylinder special weighing device trapeze load cell lifting it just clear on the manifold without removing it from its fittings compare to the stamped tare plus nominal charge criterion below 90 of nominal charge more than 10 loss refill recharge msc 1 circ 1318 rev 1 governing ma", "sibling_family": "", "via": "answer_title", "answer_title": "Checking CO2 cylinder contents and level, and action on a leaking or low cylinder", "cross_family": false } ] }, { "qid": "CHE-2026-08-0654-Q009", "text": "Where to add the shims ?", "family": "2-Stroke - Components (Other)", "subtopic": "Piston (Crown/Skirt/Inspection)", "tid": "CHE-2026-08-0654", "tray": "new", "candidates": [ { "answer_id": "PIST-CSI-B-002", "score": 0.3773684501647949, "sibling_score": 0.3773684501647949, "answer_score": null, "sibling_qid": "CHE-2026-03-0488-Q004", "sibling_text": "how to do piston centring where to add the shims", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Checking and correcting piston alignment / centering in the liner", "cross_family": false }, { "answer_id": "SYNC-C-001", "score": 0.359146386384964, "sibling_score": 0.359146386384964, "answer_score": null, "sibling_qid": "KOC-2022-09-1194-Q015", "sibling_text": "how to put generator onload", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Paralleling generators — procedure, conditions and practical checks", "cross_family": true }, { "answer_id": "TOP-BRC-001", "score": 0.33721718192100525, "sibling_score": 0.33721718192100525, "answer_score": null, "sibling_qid": "KOL-2017-03-3042-Q004", "sibling_text": "bracings fitted where nd y", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "1. What top bracing is, where it is fitted, and why", "cross_family": false } ] }, { "qid": "CHE-2026-08-0655-Q001", "text": "working principle of fuel injector and testing machine ?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Injector", "tid": "CHE-2026-08-0655", "tray": "review", "candidates": [ { "answer_id": "FINJ-002", "score": 0.8308307528495789, "sibling_score": 0.8308307528495789, "answer_score": 0.5426043480634689, "sibling_qid": "CHE-2026-03-0487-Q001", "sibling_text": "working principle of fuel injector and testing machine", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel injector overhaul and testing — spray pattern and opening pressure", "cross_family": false }, { "answer_id": "FINJ-005", "score": 0.669519305229187, "sibling_score": 0.669519305229187, "answer_score": null, "sibling_qid": "MUM-2026-09-3914-Q004", "sibling_text": "main engine fuel injector fault identification", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel injector leakage, dribbling and non-firing — indications and effects", "cross_family": false }, { "answer_id": "FINJ-001", "score": 0.664513349533081, "sibling_score": 0.664513349533081, "answer_score": 0.5488252222537994, "sibling_qid": "KOC-2025-07-1926-Q003", "sibling_text": "draw and explain main engine fuel injector", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel injector — construction, working principle and general arrangement", "cross_family": false } ] }, { "qid": "CHE-2026-08-0655-Q002", "text": "How will u find out whether purifier has developed the required rpm? checks to do prior starting purifier?", "family": "Purifier & Centrifuges", "subtopic": "Purifier Operation / Bowl", "tid": "CHE-2026-08-0655", "tray": "review", "candidates": [ { "answer_id": "PURIF-BOWL-P02-002", "score": 0.6793996691703796, "sibling_score": 0.6793996691703796, "answer_score": null, "sibling_qid": "CHE-2026-03-0487-Q002", "sibling_text": "how will u find out whthr purifier has developed the required rpm and checks to do prior starting", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Drive, rated RPM, overload, vibration / wobbling & dynamic balancing — causes and troubleshooting", "cross_family": false }, { "answer_id": "PURIF-172-001", "score": 0.6033101081848145, "sibling_score": 0.6033101081848145, "answer_score": null, "sibling_qid": "MUM-2026-06-3483-Q009", "sibling_text": "purifier not picking up rpm reasons", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Purifier not picking up speed — drive, clutch, brake, shear pin", "cross_family": false }, { "answer_id": "PUR-OPS-P01-005", "score": 0.5431878566741943, "sibling_score": 0.5431878566741943, "answer_score": null, "sibling_qid": "KOL-2021-02-3379-Q002", "sibling_text": "how can you check whether your purifier has reached rated rpm and desludging can be initiated when starting what if speed sensor not working how top disc is different from other discs why is it provided what is paring disc", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Internal control components — paring disc, level ring, pilot valves, nozzles and seals", "cross_family": false } ] }, { "qid": "CHE-2026-08-0655-Q003", "text": "Globe valve testing and what are the checks u do ?", "family": "General Marine Engineering", "subtopic": "Glove Valve", "tid": "CHE-2026-08-0655", "tray": "review", "candidates": [ { "answer_id": "GV-330-002", "score": 0.7990594506263733, "sibling_score": 0.7990594506263733, "answer_score": 0.4846711367368698, "sibling_qid": "CHE-2026-03-0487-Q003", "sibling_text": "globe valve testing and wht are the checks u do", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Gate valve overhaul, checks & the stuck / not-operating valve", "cross_family": false }, { "answer_id": "SDNR-SDR-001", "score": 0.6266141533851624, "sibling_score": 0.6266141533851624, "answer_score": null, "sibling_qid": "MUM-2025-11-2495-Q005", "sibling_text": "how will u identify sdnr and normal globe valve from outside", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "SDNR versus a plain globe valve -- telling them apart from outside, and the drawbacks of each", "cross_family": false }, { "answer_id": "MAST-PVA-005", "score": 0.6027284860610962, "sibling_score": 0.6027284860610962, "answer_score": 0.5102567344903945, "sibling_qid": "MUM-2026-05-3335-Q008", "sibling_text": "pv valve testing procedures", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "P/V valve — testing and calibration", "cross_family": true } ] }, { "qid": "CHE-2026-08-0655-Q005", "text": "steering room checks when u enter engine room ?", "family": "Steering Gear & Hydraulics", "subtopic": "Steering Gear System", "tid": "CHE-2026-08-0655", "tray": "review", "candidates": [ { "answer_id": "STEER-055-A-005", "score": 0.8410578370094299, "sibling_score": 0.8410578370094299, "answer_score": 0.5234000772237778, "sibling_qid": "CHE-2026-03-0487-Q005", "sibling_text": "steering room checks when u enter engine room", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Checks, clearances, trials and steering-room duties", "cross_family": false }, { "answer_id": "WTD-005", "score": 0.686238169670105, "sibling_score": 0.686238169670105, "answer_score": 0.46840380430221557, "sibling_qid": "KOC-2023-08-0209-Q010", "sibling_text": "steering gear room entrance from engine room rule requirements", "sibling_family": "SOLAS - Watertight & Closing Appliances", "via": "sibling", "answer_title": "Engine-room to steering-gear-room access: the air-lock and why two doors", "cross_family": true }, { "answer_id": "RUD-DROP-001", "score": 0.6011691689491272, "sibling_score": 0.6011691689491272, "answer_score": null, "sibling_qid": "MUM-2026-05-3234-Q010", "sibling_text": "checks on rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false } ] }, { "qid": "CHE-2026-08-0655-Q009", "text": "What will u do of stuffing box is not coming out according to the required procedure ? internal ques", "family": "2-Stroke - Components (Other)", "subtopic": "Stuffing Box / Piston Rod Gland", "tid": "CHE-2026-08-0655", "tray": "review", "candidates": [ { "answer_id": "SB-PRG-B-005", "score": 0.7934339642524719, "sibling_score": 0.7934339642524719, "answer_score": null, "sibling_qid": "CHE-2026-03-0487-Q006S2", "sibling_text": "stuffing box overhaul and checks in stuffing box rings and various clearance what will u do of stuffing box is not coming out according to the required procedure", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Ring set, segment identification, checks and clearances", "cross_family": false }, { "answer_id": "SB-PRG-B-001", "score": 0.7139838337898254, "sibling_score": 0.7139838337898254, "answer_score": 0.38184794485569, "sibling_qid": "MUM-2024-05-2763-Q005", "sibling_text": "stuffing box in place overhauling procedure", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "In-situ stuffing box overhaul (piston in the engine)", "cross_family": false }, { "answer_id": "SBPG-A-003", "score": 0.4499935895204544, "sibling_score": null, "answer_score": 0.4499935895204544, "sibling_qid": "", "sibling_text": "stuffing box leakage symptoms drain tank rise running checks source and post assembly confirmation primary symptom stuffing box drain tank level rising faster than usual rings worn carry over passing to the drain tank each unit has its own stuffing box drain line observe per unit to find the offender heavy continuous blackened or unusually contaminated drainings point to the leaking unit", "sibling_family": "", "via": "answer_title", "answer_title": "Stuffing box leakage — symptoms, drain-tank rise, running checks, source and post-assembly confirmation", "cross_family": false } ] }, { "qid": "CHE-2026-08-0656-Q005", "text": "centrifugal pump wear ring clearance is more, no spare on board. how to use the old wear ring ?", "family": "Pumps - Centrifugal & PD", "subtopic": "Wear Ring", "tid": "CHE-2026-08-0656", "tray": "review", "candidates": [ { "answer_id": "WRG-002", "score": 0.8371912837028503, "sibling_score": 0.8371912837028503, "answer_score": 0.5307422459125518, "sibling_qid": "CHE-2026-03-0489-Q006", "sibling_text": "centrifugal pump wear ring clearance is more no spare on board how to use the old wear ring", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Wear-ring and impeller-to-casing clearance — how to know it is good, and what happens when it opens up or closes in", "cross_family": false }, { "answer_id": "WRG-001", "score": 0.6927645802497864, "sibling_score": 0.6927645802497864, "answer_score": 0.527795934677124, "sibling_qid": "KOC-2026-01-1094-Q003", "sibling_text": "centrifugal pump wear ring use", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "What the wear ring is for, where it sits, how many, which part rotates — and why a sleeve is used", "cross_family": false }, { "answer_id": "PCD-P03-01", "score": 0.6615566611289978, "sibling_score": 0.6615566611289978, "answer_score": null, "sibling_qid": "MUM-2022-08-2138-Q002", "sibling_text": "centrifugal pump overhaul full with all checks explain wear rings", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Centrifugal pump overhaul — procedure, checks, clearances and survey evidence", "cross_family": false } ] }, { "qid": "CHE-2026-08-0657-Q002", "text": "distance between windings ? Purpose ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Transformer Theory", "tid": "CHE-2026-08-0657", "tray": "new", "candidates": [ { "answer_id": "IND-MOT-A-002", "score": 0.5868759155273438, "sibling_score": 0.5868759155273438, "answer_score": null, "sibling_qid": "CHE-2025-07-0266-Q007", "sibling_text": "how many windings", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "2. Construction and main parts of a three-phase induction motor", "cross_family": true }, { "answer_id": "GMC-583-B-002", "score": 0.5470994114875793, "sibling_score": 0.5470994114875793, "answer_score": null, "sibling_qid": "KOL-2018-06-1380-Q003", "sibling_text": "voltage coil and current coil difference", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Ammeter and voltmeter — the constructional difference and how each works", "cross_family": false }, { "answer_id": "XFMR-THY-G-003", "score": 0.5442960262298584, "sibling_score": 0.5442960262298584, "answer_score": null, "sibling_qid": "MUM-2026-05-3168-Q004", "sibling_text": "transformer winding type", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "3. Transformer construction: core, laminations and windings", "cross_family": false } ] }, { "qid": "CHE-2026-08-0657-Q004", "text": "How to check insulation resistance for single conductor ? Purpose of insulation ?Draw explain", "family": "Electrical - Motors & Starters", "subtopic": "IR Test / Insulation Resistance", "tid": "CHE-2026-08-0657", "tray": "review", "candidates": [ { "answer_id": "IR-TEST-B-010", "score": 0.7306583523750305, "sibling_score": 0.7306583523750305, "answer_score": null, "sibling_qid": "MUM-2026-05-3305-Q003", "sibling_text": "insulation resistance how you will check step by step", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Open-circuit / continuity check, and the multimeter-vs-megger trap", "cross_family": false }, { "answer_id": "IR-TEST-B-012", "score": 0.7280957102775574, "sibling_score": 0.7280957102775574, "answer_score": null, "sibling_qid": "CHE-2025-10-0073-Q008", "sibling_text": "how to check insulation resistance of a cable", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "IR test of a cable", "cross_family": false }, { "answer_id": "IR-TEST-B-002", "score": 0.7240162491798401, "sibling_score": 0.7240162491798401, "answer_score": null, "sibling_qid": "MUM-2025-11-1784-Q002", "sibling_text": "how to measure insulation resistance", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "IR test of a low-voltage motor — the standard megger procedure", "cross_family": false } ] }, { "qid": "CHE-2026-08-0658-Q001", "text": "why low voltage trip provided in MCB ?", "family": "Electrical - Generator & Alternator", "subtopic": "Voltage Dip / Droop", "tid": "CHE-2026-08-0658", "tray": "new", "candidates": [ { "answer_id": "OC-UV-TRIP-001", "score": 0.6425822973251343, "sibling_score": 0.6425822973251343, "answer_score": 0.5521887004375458, "sibling_qid": "CHE-2026-03-0345-Q002S2", "sibling_text": "explain under voltage trip", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Under-voltage trip / no-volt coil — purpose, working, onboard test and calibration", "cross_family": false }, { "answer_id": "OC-UV-TRIP-007", "score": 0.6152561902999878, "sibling_score": 0.6152561902999878, "answer_score": 0.5221014082431793, "sibling_qid": "KOL-2018-01-2168-Q001", "sibling_text": "acb safety explain under voltage trip", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "General overcurrent / undervoltage trips — alarms, values and failure effects", "cross_family": true }, { "answer_id": "REEF-COMP-002", "score": 0.6137897372245789, "sibling_score": 0.6137897372245789, "answer_score": null, "sibling_qid": "KOC-2023-10-1284-Q002", "sibling_text": "refer lo trip control circuit", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Lube-oil low-pressure / differential-pressure trip — how it works, tests and sets", "cross_family": true } ] }, { "qid": "CHE-2026-08-0658-Q002", "text": "what are the condition to be fulfilled for synchronizing ?", "family": "Electrical - Generator & Alternator", "subtopic": "Synchronization", "tid": "CHE-2026-08-0658", "tray": "review", "candidates": [ { "answer_id": "SYNCRO-A-001", "score": 0.7685421109199524, "sibling_score": 0.7685421109199524, "answer_score": null, "sibling_qid": "CHE-2026-03-0349-Q002", "sibling_text": "what are the condition to be fulfilled for synchronizing", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Synchroscope — construction, working, purpose & circuit/principle", "cross_family": false }, { "answer_id": "SYNC-C-002", "score": 0.6069726943969727, "sibling_score": 0.6069726943969727, "answer_score": 0.34043330848217007, "sibling_qid": "MUM-2026-04-2107-Q014", "sibling_text": "synchronisations methods if syncroscope fail", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Synchronising without a synchroscope — lamp, voltmeter and alternative methods", "cross_family": false }, { "answer_id": "SYNC-D-001", "score": 0.5796357989311218, "sibling_score": 0.5796357989311218, "answer_score": null, "sibling_qid": "KOL-2025-08-2838-Q002", "sibling_text": "checks to be carried out when two generators are not synchronised", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Closing the breaker out of phase — wrong-synchronizing consequences", "cross_family": false } ] }, { "qid": "CHE-2026-08-0659-Q002", "text": "AVR explain, Reason for No voltage produced ?", "family": "Electrical - Generator & Alternator", "subtopic": "AVR / Excitation", "tid": "CHE-2026-08-0659", "tray": "review", "candidates": [ { "answer_id": "RES-MAG-005", "score": 0.7509316802024841, "sibling_score": 0.7509316802024841, "answer_score": 0.47040705680847167, "sibling_qid": "MUM-2022-10-1361-Q006", "sibling_text": "initialy avr not in function how voltage developing", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "How voltage builds up when the AVR is not yet in function and no power is available", "cross_family": false }, { "answer_id": "NO-VOLT-001", "score": 0.6711637377738953, "sibling_score": 0.6711637377738953, "answer_score": 0.4329707562923431, "sibling_qid": "MUM-2022-11-1370-Q002", "sibling_text": "not building voltage reason", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "The 3/E reports the generator has started but no voltage is showing — reasons, and your actions as 2/E", "cross_family": false }, { "answer_id": "RES-MAG-002", "score": 0.6479634642601013, "sibling_score": 0.6479634642601013, "answer_score": 0.4546352684497833, "sibling_qid": "KOL-2016-07-2060-Q002", "sibling_text": "generatr running bt no voltage reason", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Generator started but no voltage developing — reasons, and your action as Second Engineer", "cross_family": false } ] }, { "qid": "CHE-2026-08-0659-Q004", "text": "overload relay draw and explain ?", "family": "Electrical - Protection & Relays", "subtopic": "Overload Protection / Thermal Trip", "tid": "CHE-2026-08-0659", "tray": "new", "candidates": [ { "answer_id": "OCR-185-003", "score": 0.6336668133735657, "sibling_score": 0.6336668133735657, "answer_score": null, "sibling_qid": "MUM-2025-12-1798-Q005", "sibling_text": "what is overload relay over current relay where they are located", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "What an overcurrent relay is, where it is fitted, what it protects", "cross_family": false }, { "answer_id": "OS-TRIP-001", "score": 0.6282214522361755, "sibling_score": 0.6282214522361755, "answer_score": null, "sibling_qid": "MUM-2022-07-1334-Q004", "sibling_text": "draw overspeed relay", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "01. What is an overspeed trip / overspeed relay, and what is its purpose?", "cross_family": false }, { "answer_id": "OC-UV-TRIP-001", "score": 0.6100364327430725, "sibling_score": 0.6100364327430725, "answer_score": null, "sibling_qid": "KOC-2024-11-1441-Q002", "sibling_text": "draw uv trip relay and explain", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Under-voltage trip / no-volt coil — purpose, working, onboard test and calibration", "cross_family": false } ] }, { "qid": "CHE-2026-08-0660-Q002", "text": "Draw the winding diagram of an induction motor ?", "family": "Electrical - Motors & Starters", "subtopic": "Motor Terminals / Connections", "tid": "CHE-2026-08-0660", "tray": "review", "candidates": [ { "answer_id": "IM-GEN-B-001", "score": 0.7929706573486328, "sibling_score": 0.7929706573486328, "answer_score": null, "sibling_qid": "CHE-2026-03-0125-Q002", "sibling_text": "draw the winding diagram of an induction motor a what does the circle in this diagram represent b where is the neutral point of this winding is connected", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Single-phase induction motor working, starting and capacitor purpose", "cross_family": false }, { "answer_id": "ROT-STAT-B-003", "score": 0.7146432995796204, "sibling_score": 0.7146432995796204, "answer_score": null, "sibling_qid": "MUM-2022-08-1350-Q003", "sibling_text": "types of induction motor how is wound type motor windings connected", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "The wound / slip-ring rotor — construction, use and slip-ring problems", "cross_family": false }, { "answer_id": "ROTSTAT-C-003", "score": 0.7133211493492126, "sibling_score": 0.7133211493492126, "answer_score": 0.5075311660766602, "sibling_qid": "KOL-2025-08-2826-Q002", "sibling_text": "construction of squirrel cage motor stator winding where fitted", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Stator construction, winding & types", "cross_family": false } ] }, { "qid": "CHE-2026-08-0660-Q008", "text": "What is the working principle of smoke detectors? ", "family": "Automation & Controls", "subtopic": "Fire / Smoke / Heat Detector", "tid": "CHE-2026-08-0660", "tray": "review", "candidates": [ { "answer_id": "FSH-DET-001", "score": 0.7199536561965942, "sibling_score": 0.7199536561965942, "answer_score": 0.5149849981069564, "sibling_qid": "KOC-2025-11-0713-Q004", "sibling_text": "working of smoke flame and heat detector and its working principle", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Types of fire, smoke, heat and flame detectors used onboard", "cross_family": false }, { "answer_id": "FSH-DET-002", "score": 0.6933813095092773, "sibling_score": 0.6933813095092773, "answer_score": 0.5799248307943344, "sibling_qid": "KOL-2022-11-0702-Q005", "sibling_text": "smoke and fire detector princple of working", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Working of smoke detectors — ionization type and cargo-hold smoke detection", "cross_family": true }, { "answer_id": "WIDAS-SMK-006", "score": 0.665045976638794, "sibling_score": 0.665045976638794, "answer_score": null, "sibling_qid": "MUM-2026-01-0664-Q002", "sibling_text": "ch smoke detection working", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Cargo-hold smoke / fire detection system and how it works", "cross_family": true } ] }, { "qid": "CHE-2026-08-0660-Q010", "text": "How many cables are coming out of alternator and what is the reason ? DECIDING QUES", "family": "Electrical - Cables & Insulation", "subtopic": "", "tid": "CHE-2026-08-0660", "tray": "review", "candidates": [ { "answer_id": "CABLE-INS-E-003", "score": 0.6542866230010986, "sibling_score": 0.6542866230010986, "answer_score": 0.47455572485923764, "sibling_qid": "MUM-2026-05-3293-Q001", "sibling_text": "type of cable from alternator to bus bar bus bar to steering gear", "sibling_family": "Electrical - Cables & Insulation", "via": "sibling", "answer_title": "Cable / conductor arrangement: alternator to MSB", "cross_family": false }, { "answer_id": "SDC-002", "score": 0.6230393648147583, "sibling_score": 0.6230393648147583, "answer_score": null, "sibling_qid": "KOC-2024-01-1325-Q006", "sibling_text": "why 6 terminals in motor why 16 18 connections in alternator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "How do you identify star or delta at the terminal box, and why the terminal counts?", "cross_family": true }, { "answer_id": "ALT-MTN-B-001", "score": 0.5797721147537231, "sibling_score": 0.5797721147537231, "answer_score": null, "sibling_qid": "KOL-2019-11-2349-Q002", "sibling_text": "connection on alternator other than main supplly lines", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Routine onboard alternator maintenance checks", "cross_family": true } ] }, { "qid": "CHE-2026-08-0661-Q003", "text": "How is RPM maintained ME engine?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Critical Speed / Barred RPM", "tid": "CHE-2026-08-0661", "tray": "new", "candidates": [ { "answer_id": "PROX-SW-004", "score": 0.5337321162223816, "sibling_score": 0.5337321162223816, "answer_score": null, "sibling_qid": "NOI-2026-09-0007-Q005", "sibling_text": "how main engine rpm is sensed", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Speed measurement by sensor, and the proximity sensor working principle", "cross_family": false }, { "answer_id": "CSBR-005", "score": 0.5076684951782227, "sibling_score": 0.5076684951782227, "answer_score": null, "sibling_qid": "CHE-2026-02-0249-Q006", "sibling_text": "engine running in lesser rpm what are the conditions to be followed and as 2e what precautions to be taken and what are the importance points to check and make engine stable", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "CSBR-009 — Minimum / low-RPM running limits and precautions", "cross_family": false }, { "answer_id": "FOP-326-A-005", "score": 0.5024001002311707, "sibling_score": 0.5024001002311707, "answer_score": null, "sibling_qid": "KOC-2026-05-0029-Q011", "sibling_text": "what is firing rpm", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Firing rpm — and on what basis is it decided?", "cross_family": false } ] }, { "qid": "CHE-2026-08-0661-Q004", "text": "How to isolate Exhaust valve in ME-B and ME? ", "family": "2-Stroke - Exhaust, Valve & Starting Air", "subtopic": "Exhaust Valve", "tid": "CHE-2026-08-0661", "tray": "new", "candidates": [ { "answer_id": "EXV-P02-001", "score": 0.6135112047195435, "sibling_score": 0.6135112047195435, "answer_score": 0.4734041839838028, "sibling_qid": "KOL-2026-07-4268-Q001", "sibling_text": "precaution before overhaul me exhaust valve", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve overhaul & dismantling — procedure and precautions", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.596561849117279, "sibling_score": 0.596561849117279, "answer_score": null, "sibling_qid": "MUM-2026-09-3908-Q006", "sibling_text": "how to lock exhaust valve", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "EXHV-080-BF37-003", "score": 0.5965564250946045, "sibling_score": 0.5965564250946045, "answer_score": null, "sibling_qid": "MUM-2022-10-2698-Q004", "sibling_text": "exhaust valve of man bw mc c is opened dismantled in front of you when will you check the clearances on the seat and valve how will you check the clearances on the valve seat what is maximum allowable clearance on the exhaust valve seat what to do when the clearances are out of specification how to grind the valve seat how will you centre the seat on the grinding mc how will you ensure same what angle do you grind the valve seat to", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "What clearances are taken after overhaul, how do you check seat and spindle, and the maximum allowances?", "cross_family": false } ] }, { "qid": "CHE-2026-08-0661-Q006", "text": "what are all the parameters u write in the Accommodation AC reading in logbook?", "family": "Refrigeration & AC", "subtopic": "AC Hot/Warm", "tid": "CHE-2026-08-0661", "tray": "new", "candidates": [ { "answer_id": "HUM-334-006", "score": 0.6186854243278503, "sibling_score": 0.6186854243278503, "answer_score": null, "sibling_qid": "CHE-2021-07-0388-Q002", "sibling_text": "ac tray why water is present psychometric chart wht all information present", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "How is a psychrometric chart used, and what information can be obtained from it?", "cross_family": false }, { "answer_id": "RAC-MAT-320-002", "score": 0.5992392301559448, "sibling_score": 0.5992392301559448, "answer_score": 0.47850761413574217, "sibling_qid": "MUM-2026-02-2581-Q005", "sibling_text": "accomodation ac temp not developing", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "2. Accommodation / passenger AC — holding temperature and \"cooling not developing\"", "cross_family": false }, { "answer_id": "CFZ-330-001", "score": 0.5834757685661316, "sibling_score": 0.5834757685661316, "answer_score": null, "sibling_qid": "MUM-2026-07-3712-Q002", "sibling_text": "comfort temperature in air conditioning relative humidity", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Define the comfort zone and state its parameters and ranges", "cross_family": false } ] }, { "qid": "CHE-2026-08-0661-Q008", "text": "what is the maker of AC compressor and Type of compressor and other cross question?", "family": "Refrigeration & AC", "subtopic": "AC Hot/Warm", "tid": "CHE-2026-08-0661", "tray": "review", "candidates": [ { "answer_id": "REF-CYC-007", "score": 0.6919866800308228, "sibling_score": 0.6919866800308228, "answer_score": null, "sibling_qid": "KOL-2017-06-1300-Q001", "sibling_text": "using same refrigerant wht is d differece b w cop of refer compressor and ac compressor", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "7. COP and improving refrigeration efficiency", "cross_family": false }, { "answer_id": "REEF-COMP-005", "score": 0.6831732392311096, "sibling_score": 0.6831732392311096, "answer_score": null, "sibling_qid": "CHE-2026-05-0587-Q005", "sibling_text": "y belt drive ac and refer compressor", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "V-belt drive on reefer compressors — why, and checking condition, alignment, tension, replacement", "cross_family": false }, { "answer_id": "CAP-CTRL-002", "score": 0.661227822303772, "sibling_score": 0.661227822303772, "answer_score": null, "sibling_qid": "KOL-2023-04-3606-Q002", "sibling_text": "ac compressor cylinder arrangement unloader working", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "CG-002 · How the cylinder-unloader mechanism works", "cross_family": false } ] }, { "qid": "CHE-2026-08-0662-Q002", "text": "How ME engine meters the fuel oil ?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Injection System", "tid": "CHE-2026-08-0662", "tray": "review", "candidates": [ { "answer_id": "CR-248-001", "score": 0.6782538294792175, "sibling_score": 0.6782538294792175, "answer_score": null, "sibling_qid": "MUM-2025-08-2828-Q006", "sibling_text": "how fuel oil quantity is controlled in me c engine", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "The common rail fuel injection system — layout, working sequence, rail valves, timing & quantity control", "cross_family": false }, { "answer_id": "FIS-221-003", "score": 0.6756390333175659, "sibling_score": 0.6756390333175659, "answer_score": null, "sibling_qid": "CHE-2025-12-0228-Q003", "sibling_text": "how fuel oil is regulate in your engine me c", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Controlling fuel injection at different load conditions", "cross_family": false }, { "answer_id": "FIVA-220-002", "score": 0.6748952269554138, "sibling_score": 0.6748952269554138, "answer_score": null, "sibling_qid": "MUM-2026-05-3217-Q014", "sibling_text": "how quantity of fuel oil in electronic engine", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "FIVA control of fuel injection — timing, quantity and actuation", "cross_family": false } ] }, { "qid": "CHE-2026-08-0662-Q004", "text": "What is the difference between rolling and parametric rolling?", "family": "Ship Construction & Stability", "subtopic": "Parametric / Synchronous Rolling", "tid": "CHE-2026-08-0662", "tray": "review", "candidates": [ { "answer_id": "PAR-ROLL-007", "score": 0.7041153311729431, "sibling_score": 0.7041153311729431, "answer_score": 0.4079561412334442, "sibling_qid": "MUM-2026-06-3622-Q005", "sibling_text": "explain parametric rolling", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "07. Variant / garbled wording (declared interpretation: parametric rolling)", "cross_family": false }, { "answer_id": "PAR-ROLL-001", "score": 0.7041153311729431, "sibling_score": 0.7041153311729431, "answer_score": 0.3978692531585693, "sibling_qid": "MUM-2026-03-0810-Q001", "sibling_text": "explain parametric rolling", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "01. What is parametric rolling?", "cross_family": false }, { "answer_id": "PAR-ROLL-004", "score": 0.37847367525100706, "sibling_score": null, "answer_score": 0.37847367525100706, "sibling_qid": "", "sibling_text": "04 parametric vs synchronous rolling and the sequential prismatic variants synchronous direct forced resonance encounter period natural roll period 1 1 typically beam near beam seas driven by the wave s direct rolling moment parametric resonance from cyclic gm gz righting moment variation the principal container ship case is encounter period roll period 2 1 so stability varies at about twice the r", "sibling_family": "", "via": "answer_title", "answer_title": "04. Parametric vs synchronous rolling (and the ‘sequential / prismatic’ variants)", "cross_family": false } ] }, { "qid": "CHE-2026-08-0663-Q001", "text": "Type of Ship sailed?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2026-08-0663", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8454868197441101, "sibling_score": 0.8454868197441101, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8445011377334595, "sibling_score": 0.8445011377334595, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7924159169197083, "sibling_score": 0.7924159169197083, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "CHE-2026-08-0663-Q003", "text": "⁠Type of Engine sailed (Last Vessel)?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2026-08-0663", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.7802643775939941, "sibling_score": 0.7802643775939941, "answer_score": null, "sibling_qid": "MUM-2026-04-1007-Q002", "sibling_text": "type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.7387229204177856, "sibling_score": 0.7387229204177856, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q001", "sibling_text": "type of ship sailed and engines details", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7093254327774048, "sibling_score": 0.7093254327774048, "answer_score": null, "sibling_qid": "MUM-2026-05-3164-Q001", "sibling_text": "last ship sailed main engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "CHE-2026-08-0663-Q005", "text": "⁠Safeties In LNG Bunkering?", "family": "Cargo Ops - Gas Carriers", "subtopic": "LNG BUNKERING", "tid": "CHE-2026-08-0663", "tray": "review", "candidates": [ { "answer_id": "LPG-LNG-002", "score": 0.7484652400016785, "sibling_score": 0.7484652400016785, "answer_score": 0.552035391330719, "sibling_qid": "KOL-2026-02-1166-Q002", "sibling_text": "precautions while carrying out lng bunkering", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "LNG bunkering – preparation and procedure", "cross_family": false }, { "answer_id": "IGC-GAS-009", "score": 0.7127386927604675, "sibling_score": 0.7127386927604675, "answer_score": null, "sibling_qid": "CHE-2026-03-0353-Q002", "sibling_text": "electrical safety during lng bunkering", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Static electricity and electrical safety / bonding", "cross_family": false }, { "answer_id": "GC-TANK-004", "score": 0.6914500594139099, "sibling_score": 0.6914500594139099, "answer_score": null, "sibling_qid": "KOL-2025-09-1038-Q011", "sibling_text": "lng containment and safeties", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Gas-carrier cargo tank construction: materials, insulation, fixing and tank safeties", "cross_family": false } ] }, { "qid": "CHE-2026-08-0663-Q006", "text": "⁠What Parameters you’ll check during Bunkering?", "family": "Cargo Ops - Gas Carriers", "subtopic": "LNG BUNKERING", "tid": "CHE-2026-08-0663", "tray": "review", "candidates": [ { "answer_id": "BUNK-PLAN-001", "score": 0.6845377087593079, "sibling_score": 0.6845377087593079, "answer_score": null, "sibling_qid": "KOL-2020-10-0431-Q005", "sibling_text": "checks as 2 e during bunkering", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Second Engineer's duties, preparation and checks for bunkering", "cross_family": true }, { "answer_id": "BUNK-PLAN-004", "score": 0.6705345511436462, "sibling_score": 0.6705345511436462, "answer_score": null, "sibling_qid": "CHE-2024-06-0397-Q001", "sibling_text": "ce not there bunker barge arrived what you will do start with sopep scrubber plug quantity check bdn flash pont density sulphur content viscosity emergency signal grade of fuel", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Bunker plan: tank selection, quantity / overflow control, calculation and procedure", "cross_family": true }, { "answer_id": "FQCC-583-A-005", "score": 0.6620567440986633, "sibling_score": 0.6620567440986633, "answer_score": 0.5044249594211578, "sibling_qid": "CHE-2026-05-0579-Q003", "sibling_text": "ae lo report what all things u will check and in fuel oil content check on which parameter u can find it", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "The bunker / fuel oil analysis report — what is checked and who says so", "cross_family": true } ] }, { "qid": "CHE-2026-08-0663-Q007", "text": "⁠What will you do with Vapour?", "family": "Cargo Ops - Gas Carriers", "subtopic": "LNG BUNKERING", "tid": "CHE-2026-08-0663", "tray": "new", "candidates": [ { "answer_id": "LPG-LNG-003", "score": 0.5479143857955933, "sibling_score": 0.5479143857955933, "answer_score": 0.37077559232711793, "sibling_qid": "KOC-2024-03-0308-Q003", "sibling_text": "suppose in vapouriser water is leaking how will u make out and how to contain", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Cargo cooling, vapouriser and cargo-heater safeties", "cross_family": false }, { "answer_id": "BLEVE-BOG-004", "score": 0.5187397599220276, "sibling_score": 0.5187397599220276, "answer_score": null, "sibling_qid": "CHE-2026-02-0115-Q003", "sibling_text": "how to you maintain gas vapour from tank i explained about the lng carriers in my vessel but he was expecting a re liquefaction plant from lpg", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "How are LNG boil-off, tank pressure and cargo temperature controlled?", "cross_family": false }, { "answer_id": "BLEVE-BOG-003", "score": 0.44728440046310425, "sibling_score": 0.44728440046310425, "answer_score": null, "sibling_qid": "KOL-2025-09-1052-Q005", "sibling_text": "lng vapour cloud flash fire what is that", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "What is an LNG vapour cloud flash fire?", "cross_family": false } ] }, { "qid": "CHE-2026-08-0663-Q008", "text": "What is the Max Allowable Flowrate during Bunkering?", "family": "Cargo Ops - Gas Carriers", "subtopic": "LNG BUNKERING", "tid": "CHE-2026-08-0663", "tray": "new", "candidates": [ { "answer_id": "BUNK-PLAN-001", "score": 0.5552785396575928, "sibling_score": 0.5552785396575928, "answer_score": null, "sibling_qid": "KOL-2020-10-0431-Q005", "sibling_text": "checks as 2 e during bunkering", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Second Engineer's duties, preparation and checks for bunkering", "cross_family": true }, { "answer_id": "LPG-LNG-002", "score": 0.5393571257591248, "sibling_score": 0.5393571257591248, "answer_score": null, "sibling_qid": "KOL-2026-02-1166-Q002", "sibling_text": "precautions while carrying out lng bunkering", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "LNG bunkering – preparation and procedure", "cross_family": false }, { "answer_id": "BNKSP-330-004", "score": 0.5392492413520813, "sibling_score": 0.5392492413520813, "answer_score": 0.4805686235427856, "sibling_qid": "KOL-2021-10-3464-Q005", "sibling_text": "during bunkering how will you prevent overflowing of bunker tanks he wants to hear overflow tank to be kept empty", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Preventing bunker tank overflow during bunkering", "cross_family": true } ] }, { "qid": "CHE-2026-08-0663-Q009", "text": "⁠Safeties in LNG Tank? Setting Value of Safety Valve (Exact Value), And Maximum Allowable Pressure of LNG Tank?", "family": "Cargo Ops - Gas Carriers", "subtopic": "", "tid": "CHE-2026-08-0663", "tray": "review", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-002", "score": 0.6964665651321411, "sibling_score": 0.6964665651321411, "answer_score": null, "sibling_qid": "KOL-2026-02-3922-Q005", "sibling_text": "what is lifting of safety valve tell only within 3 percent of designated set pressure nothing else", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Acceptance limits and durations — the accumulation limit, the maximum test periods, and the action if the limit is exceeded", "cross_family": true }, { "answer_id": "MARVS-TANK-001", "score": 0.6813128590583801, "sibling_score": 0.6813128590583801, "answer_score": 0.6135677188634873, "sibling_qid": "KOC-2025-11-0712-Q004", "sibling_text": "gas tanker safety valve working", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "MARVS — location, pressure setting, purpose, drawing and how the safety valve works", "cross_family": false }, { "answer_id": "BLEVE-BOG-004", "score": 0.6790218353271484, "sibling_score": 0.6790218353271484, "answer_score": null, "sibling_qid": "KOC-2021-07-0006-Q001", "sibling_text": "lng carrier boil off how much tank pressure control how done", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "How are LNG boil-off, tank pressure and cargo temperature controlled?", "cross_family": false } ] }, { "qid": "CHE-2026-08-0663-Q012", "text": "What all are the inspection you will carry out during Piston overhaul?", "family": "2-Stroke - Components (Other)", "subtopic": "Piston (Crown/Skirt/Inspection)", "tid": "CHE-2026-08-0663", "tray": "review", "candidates": [ { "answer_id": "PRING-B-006", "score": 0.8201278448104858, "sibling_score": 0.8201278448104858, "answer_score": null, "sibling_qid": "MUM-2023-09-2196-Q002", "sibling_text": "me piston check during overhaul", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "General oral questions", "cross_family": false }, { "answer_id": "PIST-CSI-C-002", "score": 0.8173168301582336, "sibling_score": 0.8173168301582336, "answer_score": null, "sibling_qid": "CHE-2026-02-0482-Q002", "sibling_text": "piston overhauling procedure testing procedures all checks", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston pressure / hydraulic leak testing after overhaul", "cross_family": false }, { "answer_id": "PIST-CSI-B-003", "score": 0.8162140250205994, "sibling_score": 0.8162140250205994, "answer_score": null, "sibling_qid": "KOC-2026-05-0040-Q006", "sibling_text": "piston overhauling checks", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Inspecting, calibrating and gauging a removed piston", "cross_family": false } ] }, { "qid": "CHE-2026-08-0663-Q014", "text": "⁠In fixed Gas detection system for LNG what is The Gas concentration High Alarm Limit and Engine Shut down Limit?", "family": "Cargo Ops - Gas Carriers", "subtopic": "", "tid": "CHE-2026-08-0663", "tray": "new", "candidates": [ { "answer_id": "GAS-DET-001", "score": 0.6256209015846252, "sibling_score": 0.6256209015846252, "answer_score": null, "sibling_qid": "KOC-2024-06-0352-Q013", "sibling_text": "fixed gas detection system", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Fixed gas detection system on a gas carrier (cargo area / \"pump room\")", "cross_family": false }, { "answer_id": "IGC-GAS-008", "score": 0.591017484664917, "sibling_score": 0.591017484664917, "answer_score": null, "sibling_qid": "KOC-2023-10-0224-Q004", "sibling_text": "4 fire potential on lng", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Cargo hazards and properties of liquefied gases", "cross_family": false }, { "answer_id": "IGAT-583-003", "score": 0.5845750570297241, "sibling_score": 0.5845750570297241, "answer_score": 0.5092309415340424, "sibling_qid": "KOC-2021-11-0035-Q003", "sibling_text": "high low pressure ig alarm values", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What are the set values for the IG system alarms and trips — IG line high, low and low-low pressure, oxygen content, PV valve and breaker pressures?", "cross_family": true } ] }, { "qid": "CHE-2026-08-0664-Q001", "text": "What ships sailed?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2026-08-0664", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.7329563498497009, "sibling_score": 0.7329563498497009, "answer_score": null, "sibling_qid": "CHE-2026-02-0478-Q004", "sibling_text": "this type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.6810237765312195, "sibling_score": 0.6810237765312195, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.3940124601125717, "sibling_score": null, "answer_score": 0.3940124601125717, "sibling_qid": "", "sibling_text": "type a and type b ships how form and cargo set the freeboard", "sibling_family": "", "via": "answer_title", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "CHE-2026-08-0664-Q002", "text": "why container gets lost in sea?", "family": "Cargo Ops - Containers", "subtopic": "", "tid": "CHE-2026-08-0664", "tray": "new", "candidates": [ { "answer_id": "CONT-FIRE-005", "score": 0.6188556551933289, "sibling_score": 0.6188556551933289, "answer_score": 0.4693857729434967, "sibling_qid": "KOC-2026-05-0042-Q011", "sibling_text": "internal recent container fires happened near our shore", "sibling_family": "Cargo Ops - Containers", "via": "sibling", "answer_title": "What recent container-ship casualties happened near the Indian coast, and why do they matter for fire safety?", "cross_family": false }, { "answer_id": "SOLAS12-BC-B-001", "score": 0.6076704859733582, "sibling_score": 0.6076704859733582, "answer_score": null, "sibling_qid": "MUM-2026-04-0884-Q002", "sibling_text": "safeties in container ship for container", "sibling_family": "Cargo Ops - Containers", "via": "sibling", "answer_title": "Additional safety measures for bulk carriers (SOLAS Chapter XII)", "cross_family": false }, { "answer_id": "CONT-FIRE-FINAL-1-005", "score": 0.600488543510437, "sibling_score": 0.600488543510437, "answer_score": 0.48373299241065976, "sibling_qid": "MUM-2023-03-2722-Q002", "sibling_text": "issues with container ship stability", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Container ship stability and on-deck tier loading", "cross_family": true } ] }, { "qid": "CHE-2026-08-0664-Q004", "text": "Smoke from a container, action taken?", "family": "Cargo Ops - Containers", "subtopic": "", "tid": "CHE-2026-08-0664", "tray": "new", "candidates": [ { "answer_id": "SMK-FUNL-BF01-001", "score": 0.5876851081848145, "sibling_score": 0.5876851081848145, "answer_score": 0.37045273631811143, "sibling_qid": "MUM-2026-04-2968-Q005", "sibling_text": "smoke from funnel your action as 2e", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "The bridge reports smoke from the funnel — what is your action as 2/E?", "cross_family": true }, { "answer_id": "AE-HOT-BLOW-001", "score": 0.5513508319854736, "sibling_score": 0.5513508319854736, "answer_score": null, "sibling_qid": "KOC-2025-09-1054-Q007", "sibling_text": "black smoke coming in ae action as a 2e", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE / DG giving black or dark smoke — causes and corrective action", "cross_family": true }, { "answer_id": "CONT-FIRE-002", "score": 0.5214132070541382, "sibling_score": 0.5214132070541382, "answer_score": 0.39290018379688263, "sibling_qid": "KOL-2025-10-1101-Q001", "sibling_text": "container fire", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "How do you fight a fire in containers on deck, or where the affected container is not directly accessible?", "cross_family": true } ] }, { "qid": "CHE-2026-08-0665-Q001", "text": "All questions were vessel specific?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2026-08-0665", "tray": "review", "candidates": [ { "answer_id": "CHEM-PA-011", "score": 0.7354161739349365, "sibling_score": 0.7354161739349365, "answer_score": null, "sibling_qid": "MUM-2026-03-2938-Q002", "sibling_text": "which vessel", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "What ‘en route’ means for Annex II discharge", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.7120639681816101, "sibling_score": 0.7120639681816101, "answer_score": null, "sibling_qid": "CHE-2026-02-0249-Q001", "sibling_text": "which type of vessel", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "TNK-SAFE-BF26-003", "score": 0.711789071559906, "sibling_score": 0.711789071559906, "answer_score": null, "sibling_qid": "CHE-2026-02-0340-Q001", "sibling_text": "what type of vessel sailed what about electrical writing have you sailed on tankers before", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "What safeties, including electrical safeties and Ex ratings, are provided on the deck of a tanker?", "cross_family": false } ] }, { "qid": "CHE-2026-08-0665-Q002", "text": "Fixed Gas detection system explain with components?", "family": "Cargo Ops - Tankers", "subtopic": "Pump Room Safety", "tid": "CHE-2026-08-0665", "tray": "review", "candidates": [ { "answer_id": "PR-SAFE-A-002", "score": 0.7749072313308716, "sibling_score": 0.7749072313308716, "answer_score": 0.4827550768852234, "sibling_qid": "KOC-2022-08-0082-Q007", "sibling_text": "fixed gas detection system", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Pump-room fixed gas detection and atmosphere monitoring", "cross_family": false }, { "answer_id": "GAS-DET-001", "score": 0.7254229784011841, "sibling_score": 0.7254229784011841, "answer_score": 0.5165289312601089, "sibling_qid": "KOC-2024-06-0352-Q013", "sibling_text": "fixed gas detection system", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Fixed gas detection system on a gas carrier (cargo area / \"pump room\")", "cross_family": true }, { "answer_id": "TNK-SAFE-BF26-004", "score": 0.6089945435523987, "sibling_score": 0.6089945435523987, "answer_score": null, "sibling_qid": "KOC-2023-03-0163-Q002", "sibling_text": "ballast tank safties told about fixed gas detection system asked me to explain", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What safeties are fitted in the ballast tank of a tanker, and what do you do if hydrocarbon is detected?", "cross_family": false } ] }, { "qid": "CHE-2026-08-0665-Q007", "text": "cargo tank safety valve setting and cross questions related to that?", "family": "Cargo Ops - Tankers", "subtopic": "Tanker Safety / Deck", "tid": "CHE-2026-08-0665", "tray": "review", "candidates": [ { "answer_id": "MAST-PVA-005", "score": 0.773347020149231, "sibling_score": 0.773347020149231, "answer_score": null, "sibling_qid": "KOL-2017-01-0045-Q003", "sibling_text": "oil tanker cargo tank safeties only those are fitted on the tank pv valve pr set value both vaccume and over pr high pr alarm set value low pr alarm set value overfill alarm set value high level alarm set value how u will do testing of pv valve on board units of pv valve setting", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "P/V valve — testing and calibration", "cross_family": false }, { "answer_id": "MAST-PVA-004", "score": 0.7506315112113953, "sibling_score": 0.7506315112113953, "answer_score": null, "sibling_qid": "MUM-2022-12-0074-Q002", "sibling_text": "full form of isgott settings of safety valves on cargo tank why different at sea port why same on your vessel", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "P/V valve & P/V breaker — pressure/vacuum settings and the basis", "cross_family": false }, { "answer_id": "TNK-SAFE-BF26-002", "score": 0.7380858063697815, "sibling_score": 0.7380858063697815, "answer_score": 0.517546010017395, "sibling_qid": "MUM-2026-02-0776-Q001", "sibling_text": "cargo tank safeties not accepting pv valves", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What safeties are provided on the cargo tanks of an oil, crude or chemical tanker?", "cross_family": false } ] }, { "qid": "CHE-2026-08-0666-Q001", "text": "Type of ship sailed?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2026-08-0666", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8454868197441101, "sibling_score": 0.8454868197441101, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8445011377334595, "sibling_score": 0.8445011377334595, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7924159169197083, "sibling_score": 0.7924159169197083, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "CHE-2026-08-0666-Q003", "text": "Difference between bilging and flooding?", "family": "", "subtopic": "Foam System / Monitor", "tid": "CHE-2026-08-0666", "tray": "new", "candidates": [ { "answer_id": "ODC-003", "score": 0.5424020290374756, "sibling_score": 0.5424020290374756, "answer_score": null, "sibling_qid": "MUM-2026-06-3575-Q011", "sibling_text": "difference in discharge of bilges in outside and inside special area", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Machinery-space bilge discharge inside a special area — and the difference from outside", "cross_family": false }, { "answer_id": "OWS-15PPM-002", "score": 0.54195636510849, "sibling_score": 0.54195636510849, "answer_score": null, "sibling_qid": "MUM-2025-11-0588-Q006", "sibling_text": "difference in discharge of bilges in outside and inside special area", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "DS-P04-002", "score": 0.541576087474823, "sibling_score": 0.541576087474823, "answer_score": null, "sibling_qid": "KOL-2025-03-0917-Q003", "sibling_text": "progressive flooding and flooding difference", "sibling_family": "", "via": "sibling", "answer_title": "Flooding, subdivision, margin line, downflooding and survivability", "cross_family": false } ] }, { "qid": "CHE-2026-08-0666-Q011", "text": "Some basics about EGCS n it's parameters with limits?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "EGCS / Scrubber", "tid": "CHE-2026-08-0666", "tray": "new", "candidates": [ { "answer_id": "EGCS-393-002", "score": 0.5244373679161072, "sibling_score": 0.5244373679161072, "answer_score": 0.31836576461791993, "sibling_qid": "CHE-2026-02-0484-Q014", "sibling_text": "egcs explain", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "EGCS types, components and working — open, closed and hybrid loop", "cross_family": false }, { "answer_id": "EEDI-B-002", "score": 0.42526766657829285, "sibling_score": 0.42526766657829285, "answer_score": null, "sibling_qid": "MUM-2025-07-0357-Q007", "sibling_text": "maroon annex 6 eedi eexi units of eedi why it is done and what are the measures if attained eexi is more than desired", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Attained EEDI, required EEDI, reference line value and reduction factor", "cross_family": false }, { "answer_id": "EEXI-005", "score": 0.4249967336654663, "sibling_score": 0.4249967336654663, "answer_score": null, "sibling_qid": "KOC-2025-12-1078-Q011", "sibling_text": "how to decide setpoint of epl", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "The Engine Power Limiter — how it is fitted on MC and ME engines, the setpoint, ShaPoLi, the records, and derating to meet EEXI", "cross_family": false } ] }, { "qid": "CHE-2026-08-0667-Q001", "text": "What type of ship sailed? ", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2026-08-0667", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8127294182777405, "sibling_score": 0.8127294182777405, "answer_score": null, "sibling_qid": "CHE-2026-02-0478-Q004", "sibling_text": "this type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7864274382591248, "sibling_score": 0.7864274382591248, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.4681445062160492, "sibling_score": null, "answer_score": 0.4681445062160492, "sibling_qid": "", "sibling_text": "type a and type b ships how form and cargo set the freeboard", "sibling_family": "", "via": "answer_title", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "CHE-2026-08-0667-Q003", "text": "What type of strengthening arrangements are there in the container ship?", "family": "Cargo Ops - Container Ships", "subtopic": "", "tid": "CHE-2026-08-0667", "tray": "review", "candidates": [ { "answer_id": "PPS-230-005", "score": 0.7006843090057373, "sibling_score": 0.7006843090057373, "answer_score": null, "sibling_qid": "CHE-2025-08-0014-Q001", "sibling_text": "container ship forward strengthening arrangement", "sibling_family": "", "via": "sibling", "answer_title": "Panting and pounding arrangements: extent and alternative members", "cross_family": false }, { "answer_id": "DB-TORBOX-B-001", "score": 0.665602445602417, "sibling_score": 0.665602445602417, "answer_score": 0.5144844889640808, "sibling_qid": "KOC-2021-07-0005-Q004", "sibling_text": "container ship for large opening for strengthning what kind of arrangement how torsion box nullnify torsional vibration bulk carrier what kind of strengthening", "sibling_family": "", "via": "sibling", "answer_title": "Torsion box — purpose, location, and why container ships", "cross_family": false }, { "answer_id": "SHIPTYPE-BTC-001", "score": 0.6430677175521851, "sibling_score": 0.6430677175521851, "answer_score": 0.5306084930896758, "sibling_qid": "MUM-2025-11-2867-Q004", "sibling_text": "explain in detail about container ship construction and strengthening arrangement cross questions", "sibling_family": "", "via": "sibling", "answer_title": "Container ship construction — cross-section, framing and special structural features", "cross_family": false } ] }, { "qid": "CHE-2026-08-0667-Q005", "text": "Purpose of nozzle is given in fixed CO2 firefighting system?", "family": "SOLAS - Fire Safety", "subtopic": "CO2 System", "tid": "CHE-2026-08-0667", "tray": "review", "candidates": [ { "answer_id": "CO2-SYS-007", "score": 0.7693197131156921, "sibling_score": 0.7693197131156921, "answer_score": null, "sibling_qid": "KOL-2017-01-0049-Q004", "sibling_text": "co2 firefighting function of nozzle", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 piping, nozzles, line arrangement and pressure testing", "cross_family": false }, { "answer_id": "CO2-SYS-002", "score": 0.6756659150123596, "sibling_score": 0.6756659150123596, "answer_score": null, "sibling_qid": "KOC-2025-11-0704-Q004", "sibling_text": "co2 fixed fire fighting maintenance", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 maintenance, inspection, testing and survey routines", "cross_family": false }, { "answer_id": "FIXED-FF-B-001", "score": 0.6742852926254272, "sibling_score": 0.6742852926254272, "answer_score": null, "sibling_qid": "MUM-2025-05-0270-Q002", "sibling_text": "pump room co2 system why it is written only for fire fighting", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fixed fire-fighting systems carried onboard and the risks they protect", "cross_family": false } ] }, { "qid": "CHE-2026-08-0667-Q006", "text": "Explain the mechanism of the Fixed system CO2 bottle head, how the CO2 is released?", "family": "SOLAS - Fire Safety", "subtopic": "CO2 System", "tid": "CHE-2026-08-0667", "tray": "review", "candidates": [ { "answer_id": "CO2-SYS-001", "score": 0.7103520035743713, "sibling_score": 0.7103520035743713, "answer_score": null, "sibling_qid": "KOL-2021-09-0550-Q004", "sibling_text": "co2 bottle head how it releases co2", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 release procedure, shutdowns, re-entry and casualty-use decisions", "cross_family": false }, { "answer_id": "CO2-SYS-006", "score": 0.6705318689346313, "sibling_score": 0.6705318689346313, "answer_score": 0.4817689538002014, "sibling_qid": "KOL-2024-12-0898-Q004", "sibling_text": "co2 bottle head assembly working", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 bottles, manifolds, pilot cylinders and valve components", "cross_family": false }, { "answer_id": "CO2-SYS-005", "score": 0.6685460209846497, "sibling_score": 0.6685460209846497, "answer_score": 0.45043325126171113, "sibling_qid": "KOC-2026-03-0843-Q005", "sibling_text": "fixed co2 system relief vv lifting pressure how the pressure rises", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 system safeties, CO2-room requirements, alarms and ventilation", "cross_family": false } ] }, { "qid": "CHE-2026-08-0667-Q010", "text": "Function of AVR does it come to the picture when alternator in no load?", "family": "Electrical - Generator & Alternator", "subtopic": "AVR / Excitation", "tid": "CHE-2026-08-0667", "tray": "new", "candidates": [ { "answer_id": "AVR-EXC-H-003", "score": 0.649452805519104, "sibling_score": 0.649452805519104, "answer_score": null, "sibling_qid": "MUM-2026-03-2000-Q001", "sibling_text": "how transient loads are taken care of by alternator wanted to know everything about avr working", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Voltage regulation, dip, droop and transient response", "cross_family": false }, { "answer_id": "AVR-EXC-C-001", "score": 0.6356374621391296, "sibling_score": 0.6356374621391296, "answer_score": null, "sibling_qid": "KOL-2017-02-2112-Q006", "sibling_text": "avr working what r types of avr location of avr any other than top of alternator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Types of AVR / excitation and how one is selected", "cross_family": false }, { "answer_id": "AVR-EXC-H-005", "score": 0.6113024353981018, "sibling_score": 0.6113024353981018, "answer_score": null, "sibling_qid": "MUM-2023-11-1414-Q005", "sibling_text": "avr working and alternator safeties", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "AVR / excitation safeties and protections", "cross_family": false } ] }, { "qid": "CHE-2026-08-0667-Q011", "text": "What is all u would check after starting alternator without load?", "family": "Electrical - Generator & Alternator", "subtopic": "", "tid": "CHE-2026-08-0667", "tray": "review", "candidates": [ { "answer_id": "ALT-MAINT-A-001", "score": 0.7542169094085693, "sibling_score": 0.7542169094085693, "answer_score": null, "sibling_qid": "KOL-2026-07-4245-Q004", "sibling_text": "checks on alternator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Routine maintenance & care of a ship’s alternator", "cross_family": false }, { "answer_id": "IR-TEST-305-001", "score": 0.753360390663147, "sibling_score": 0.753360390663147, "answer_score": null, "sibling_qid": "KOL-2017-06-2131-Q004", "sibling_text": "megger test of alternator start from isolation", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Carrying out the IR (megger) test on an alternator winding", "cross_family": false }, { "answer_id": "ALT-MAINT-C-003", "score": 0.7412685751914978, "sibling_score": 0.7412685751914978, "answer_score": null, "sibling_qid": "MUM-2025-12-2518-Q004", "sibling_text": "alternator nde bearing checks", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "3. What bearing checks and maintenance are carried out on an alternator?", "cross_family": false } ] }, { "qid": "CHE-2026-08-0667-Q012", "text": "Can we check current in no load condition?", "family": "Electrical - Generator & Alternator", "subtopic": "Synchronous vs Asynchronous", "tid": "CHE-2026-08-0667", "tray": "review", "candidates": [ { "answer_id": "PF-D-001", "score": 0.6796799898147583, "sibling_score": 0.6796799898147583, "answer_score": null, "sibling_qid": "KOC-2023-07-1265-Q005", "sibling_text": "if load applied some current will drawing if ammeter not working how will you know calculate current", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "How kW, kVA, kVAR, current and the power triangle relate to power factor", "cross_family": false }, { "answer_id": "NO-VOLT-004", "score": 0.5762584805488586, "sibling_score": 0.5762584805488586, "answer_score": null, "sibling_qid": "MUM-2025-09-1662-Q001", "sibling_text": "4e started standby gen to take on load he said voltage is zero all meters are recently calibrated so no issue there what are the reasons for no voltage", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "The generator is turning, the voltmeter reads zero, and the meters were recently calibrated — how do you investigate, and how do you remove and test the voltmeter?", "cross_family": false }, { "answer_id": "GMCM-583-A-007", "score": 0.5657327175140381, "sibling_score": 0.5657327175140381, "answer_score": null, "sibling_qid": "KOL-2022-01-2532-Q004", "sibling_text": "can we check live current with multimeter", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "07. Hazards and precautions when using a multimeter — and can you check live current with one?", "cross_family": true } ] }, { "qid": "CHE-2026-08-0668-Q003", "text": "Which part will move first when making and breaking contacts?", "family": "Electrical - Switchgear & Protection", "subtopic": "", "tid": "CHE-2026-08-0668", "tray": "new", "candidates": [ { "answer_id": "FOP-326-A-001", "score": 0.48742103576660156, "sibling_score": 0.48742103576660156, "answer_score": null, "sibling_qid": "KOL-2022-07-1922-Q003", "sibling_text": "firing order deciding principle", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "How is the firing order decided?", "cross_family": true }, { "answer_id": "PTRIP-BO-003", "score": 0.48383402824401855, "sibling_score": 0.48383402824401855, "answer_score": null, "sibling_qid": "MUM-2026-07-3722-Q007", "sibling_text": "sequential start and which machinery starts", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Sequential starting after a blackout — what starts first, and why?", "cross_family": true }, { "answer_id": "SPR-STERN-001", "score": 0.48093363642692566, "sibling_score": 0.48093363642692566, "answer_score": null, "sibling_qid": "KOL-2026-02-2041-Q002", "sibling_text": "why ahead turning moment more than astern", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Propeller design factors, efficiency, handedness & material", "cross_family": true } ] }, { "qid": "CHE-2026-08-0668-Q005", "text": "What is earthing? ", "family": "Electrical - Distribution & Earthing", "subtopic": "", "tid": "CHE-2026-08-0668", "tray": "new", "candidates": [ { "answer_id": "ENR-P02B-001", "score": 0.6058520078659058, "sibling_score": 0.6058520078659058, "answer_score": null, "sibling_qid": "MUM-2023-09-1403-Q004", "sibling_text": "why earthing is done", "sibling_family": "", "via": "sibling", "answer_title": "Ship’s earthing / distribution system — insulated LV neutral, earthed (Class-approved) HV neutral", "cross_family": false }, { "answer_id": "EARTH-NEU-02A-002", "score": 0.6006149053573608, "sibling_score": 0.6006149053573608, "answer_score": null, "sibling_qid": "CHE-2026-05-0643-Q006", "sibling_text": "types of earthing", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Insulated neutral vs earthed neutral — how each behaves, where each is used, which is safer", "cross_family": true }, { "answer_id": "EARTH-NER-A-001", "score": 0.5739312171936035, "sibling_score": 0.5739312171936035, "answer_score": null, "sibling_qid": "KOL-2026-10-4322-Q005", "sibling_text": "earthing and bonding", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Bonding / equipotential bonding (and how it differs from earthing)", "cross_family": true } ] }, { "qid": "CHE-2026-08-0668-Q006", "text": "How will you know earth is proper? ", "family": "Electrical - Distribution & Earthing", "subtopic": "", "tid": "CHE-2026-08-0668", "tray": "new", "candidates": [ { "answer_id": "EF-DET-P01-002", "score": 0.43471676111221313, "sibling_score": 0.43471676111221313, "answer_score": null, "sibling_qid": "KOC-2022-09-1194-Q006", "sibling_text": "how to know earth fault", "sibling_family": "", "via": "sibling", "answer_title": "How an earth fault is detected and indicated on board", "cross_family": false }, { "answer_id": "EF-DET-P01-001", "score": 0.42676419019699097, "sibling_score": 0.42676419019699097, "answer_score": null, "sibling_qid": "KOL-2026-05-0056-Q021", "sibling_text": "and how you will know from where this earth fault occured", "sibling_family": "", "via": "sibling", "answer_title": "Earth fault / earth leakage — and how it differs from short circuit and open circuit", "cross_family": false }, { "answer_id": "SHFT-ERTH-300-002", "score": 0.40255188941955566, "sibling_score": 0.40255188941955566, "answer_score": null, "sibling_qid": "MUM-2025-08-1595-Q006", "sibling_text": "eath shafting how will you know it s working satisfactory", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Checks, monitoring and maintenance", "cross_family": true } ] }, { "qid": "CHE-2026-08-0668-Q007", "text": "Which phase is leaking? How will you know?", "family": "Electrical - Distribution & Earthing", "subtopic": "", "tid": "CHE-2026-08-0668", "tray": "new", "candidates": [ { "answer_id": "CYL-LINER-P03-002", "score": 0.5501079559326172, "sibling_score": 0.5501079559326172, "answer_score": null, "sibling_qid": "KOL-2018-05-1373-Q013", "sibling_text": "linear leaking how will u find", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Detecting and confirming a cracked or leaking liner — and pinning the unit", "cross_family": true }, { "answer_id": "SBPG-A-003", "score": 0.5461075305938721, "sibling_score": 0.5461075305938721, "answer_score": 0.4230629399418831, "sibling_qid": "MUM-2026-04-2956-Q003S4", "sibling_text": "from where its leaking", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Stuffing box leakage — symptoms, drain-tank rise, running checks, source and post-assembly confirmation", "cross_family": true }, { "answer_id": "SGRS-328-004", "score": 0.523461103439331, "sibling_score": 0.523461103439331, "answer_score": null, "sibling_qid": "MUM-2026-09-3883-Q008", "sibling_text": "how will you identify which seal is leaking", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "How do you know or check that a steering gear seal is leaking?", "cross_family": true } ] }, { "qid": "CHE-2026-08-0668-Q011", "text": "What are the parts in a battery charger? Internal ques", "family": "Electrical - Batteries & DC Systems", "subtopic": "Battery Testing / Load Test / SG", "tid": "CHE-2026-08-0668", "tray": "review", "candidates": [ { "answer_id": "BDC-P03-03", "score": 0.7162767052650452, "sibling_score": 0.7162767052650452, "answer_score": null, "sibling_qid": "KOC-2025-03-1509-Q007", "sibling_text": "nickel cadmium battery during charging internal", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "Nickel-cadmium charging and discharging — reactions and process", "cross_family": false }, { "answer_id": "BDC-P03-06", "score": 0.6872233748435974, "sibling_score": 0.6872233748435974, "answer_score": 0.562977385520935, "sibling_qid": "KOC-2025-08-1573-Q006", "sibling_text": "battery charging circuit", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "Battery charging circuit — draw and explain", "cross_family": false }, { "answer_id": "BDC-P01-01", "score": 0.6731377840042114, "sibling_score": 0.6731377840042114, "answer_score": null, "sibling_qid": "KOL-2016-08-2066-Q002", "sibling_text": "battery where u will find about charging and all in detail", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "Shipboard batteries — purpose, types and where they are used", "cross_family": false } ] }, { "qid": "CHE-2026-08-0668-Q012", "text": "What is inverter? Internal ques", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Inverter / VFD", "tid": "CHE-2026-08-0668", "tray": "new", "candidates": [ { "answer_id": "VFD-INV-P02-005", "score": 0.5340094566345215, "sibling_score": 0.5340094566345215, "answer_score": 0.34784215092658993, "sibling_qid": "KOL-2019-05-2289-Q001", "sibling_text": "inverter working components", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "How do rectifier, DC link and inverter stages convert AC to DC and DC to AC?", "cross_family": false }, { "answer_id": "SCR-306-A-001", "score": 0.48588278889656067, "sibling_score": 0.48588278889656067, "answer_score": null, "sibling_qid": "MUM-2025-05-1499-Q008", "sibling_text": "what is scr question by internal what is back emf and it s significance", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What an SCR is and how it works", "cross_family": false }, { "answer_id": "VFD-INV-P02-001", "score": 0.4855036735534668, "sibling_score": 0.4855036735534668, "answer_score": null, "sibling_qid": "KOC-2023-03-1248-Q009", "sibling_text": "vfd draw and explain internal no qstns", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Draw and explain the VFD power circuit and working sequence", "cross_family": false } ] }, { "qid": "CHE-2026-08-0668-Q013", "text": "What is convertor? Internal ques", "family": "Electrical - Distribution & MSB", "subtopic": "", "tid": "CHE-2026-08-0668", "tray": "new", "candidates": [ { "answer_id": "VFD-INV-P02-005", "score": 0.4852403402328491, "sibling_score": 0.4852403402328491, "answer_score": 0.26278450042009355, "sibling_qid": "CHE-2026-04-0379-Q001", "sibling_text": "converter", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "How do rectifier, DC link and inverter stages convert AC to DC and DC to AC?", "cross_family": true }, { "answer_id": "CYC-599-001", "score": 0.42555317282676697, "sibling_score": 0.42555317282676697, "answer_score": 0.2520159035921097, "sibling_qid": "CHE-2026-09-3922-Q002", "sibling_text": "what is cyclol converter", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a cycloconverter and how does it work?", "cross_family": true }, { "answer_id": "PERF-CRV-001", "score": 0.4123346209526062, "sibling_score": 0.4123346209526062, "answer_score": null, "sibling_qid": "CHE-2026-09-3930-Q015", "sibling_text": "what is propeller draw internal ques", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Propeller curve — what it is, use and margin", "cross_family": true } ] }, { "qid": "CHE-2026-08-0669-Q001", "text": "Types of vessel sailed and engines ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2026-08-0669", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8105602860450745, "sibling_score": 0.8105602860450745, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.7655243277549744, "sibling_score": 0.7655243277549744, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q001", "sibling_text": "type of ship sailed and engines details", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7239341139793396, "sibling_score": 0.7239341139793396, "answer_score": null, "sibling_qid": "KOL-2025-12-2031-Q002", "sibling_text": "type of ship and engine sailed engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "CHE-2026-08-0669-Q002", "text": "Type of fuel pump on main engine ?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Pump Overhaul", "tid": "CHE-2026-08-0669", "tray": "review", "candidates": [ { "answer_id": "FCL-P02-001", "score": 0.7715714573860168, "sibling_score": 0.7715714573860168, "answer_score": null, "sibling_qid": "KOC-2023-01-1802-Q003", "sibling_text": "main engine fuel pump timing any type", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel pump / injection timing check, setting, and adjustment", "cross_family": false }, { "answer_id": "FP-OVHL-004", "score": 0.7363278269767761, "sibling_score": 0.7363278269767761, "answer_score": null, "sibling_qid": "MUM-2026-01-1240-Q002", "sibling_text": "fuel pump type", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Overhaul procedure, boxing-up checks, and briefing the junior", "cross_family": false }, { "answer_id": "FP-OVHL-006", "score": 0.7297949194908142, "sibling_score": 0.7297949194908142, "answer_score": 0.583668440580368, "sibling_qid": "KOC-2024-09-1865-Q003", "sibling_text": "overhaul of fuel pump of main engine", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Main-engine fuel pump — construction, working, VIT, reversing, MC vs ME-C", "cross_family": false } ] }, { "qid": "CHE-2026-08-0669-Q007", "text": "Generator after stopping not stopping what is reason?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Unit Temperature Low / Troubleshooting", "tid": "CHE-2026-08-0669", "tray": "new", "candidates": [ { "answer_id": "ALT-MTN-B-001", "score": 0.632841944694519, "sibling_score": 0.632841944694519, "answer_score": null, "sibling_qid": "MUM-2023-05-0950-Q007", "sibling_text": "suppose your generator is not stopping from control room after stopping your action", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Routine onboard alternator maintenance checks", "cross_family": true }, { "answer_id": "AEDEC-291-003", "score": 0.5994969010353088, "sibling_score": 0.5994969010353088, "answer_score": null, "sibling_qid": "MUM-2026-06-3491-Q006", "sibling_text": "generator tripped checks before starting", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "3. Pre-start checks after decarb / recommissioning", "cross_family": false }, { "answer_id": "CB-033-A-001", "score": 0.5187726020812988, "sibling_score": 0.5187726020812988, "answer_score": null, "sibling_qid": "KOC-2021-07-1143-Q001", "sibling_text": "after starting generator u try to close acb but it s not closing reasons", "sibling_family": "", "via": "sibling", "answer_title": "What are your actions if a generator / main breaker or ACB will not open, close, or operate correctly?", "cross_family": false } ] }, { "qid": "CHE-2026-08-0669-Q011", "text": "Boiler safety valve pressure setting , purpose of compression ring?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "CHE-2026-08-0669", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-001", "score": 0.6974526047706604, "sibling_score": 0.6974526047706604, "answer_score": null, "sibling_qid": "CHE-2026-09-3931-Q006", "sibling_text": "boiler safety valve pressure setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.666333019733429, "sibling_score": 0.666333019733429, "answer_score": null, "sibling_qid": "CHE-2026-03-0497-Q002", "sibling_text": "how do you do pressure setting of boiler safety valve expecting gaging tool both type", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.6644948124885559, "sibling_score": 0.6644948124885559, "answer_score": null, "sibling_qid": "CHE-2026-05-0583-Q002", "sibling_text": "boiler safety valve lifting pressure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "CHE-2026-08-0669-Q012", "text": "Easing gear purpose ?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "CHE-2026-08-0669", "tray": "new", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.4869540333747864, "sibling_score": 0.4869540333747864, "answer_score": null, "sibling_qid": "CHE-2025-11-0452-Q004", "sibling_text": "what is the purpose of easing gear and what is accumulation pressure test po deciding which engine you have sailed i said me engine why me engine is intelligent by seeing performance po decides either pass or fail to everyone", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": false }, { "answer_id": "TG-MOTOR-003", "score": 0.478671133518219, "sibling_score": 0.478671133518219, "answer_score": null, "sibling_qid": "MUM-2023-10-1406-Q007", "sibling_text": "started used in turning gear", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What starter is used on the turning gear motor, and why not a star-delta or a soft starter?", "cross_family": true }, { "answer_id": "BLR-SURV-P02-001", "score": 0.44300585985183716, "sibling_score": 0.44300585985183716, "answer_score": null, "sibling_qid": "MUM-2026-05-3267-Q005", "sibling_text": "boiler safety valve why you required easing gear", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "CHE-2026-08-0669-Q014", "text": "How will you carry out chemical cleaning in fresh water generator without opening? internal ques", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "CHE-2026-08-0669", "tray": "review", "candidates": [ { "answer_id": "HULL-PAINT-001", "score": 0.6951093077659607, "sibling_score": 0.6951093077659607, "answer_score": null, "sibling_qid": "MUM-2026-05-3247-Q009", "sibling_text": "fwg chemical cleaning if no chemical is available what you can use", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Preparing the hull surface before painting in dry dock — cleanliness standard and methods", "cross_family": false }, { "answer_id": "TC-WASH-001", "score": 0.5902557373046875, "sibling_score": 0.5902557373046875, "answer_score": null, "sibling_qid": "MUM-2023-06-2737-Q003", "sibling_text": "tc water wash of gen", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "01. How is turbocharger wet / water washing carried out (ME or AE)?", "cross_family": true }, { "answer_id": "PUR-BOWL-P03-FINAL-1-002", "score": 0.581631600856781, "sibling_score": 0.581631600856781, "answer_score": null, "sibling_qid": "KOC-2025-07-1042-Q007", "sibling_text": "purifier desulge whats is happning inside not the automation and sequence", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "2. Operation, Starting, and Running on Manual After a Supply or Automation Failure", "cross_family": true } ] }, { "qid": "CHE-2026-08-0669-Q016", "text": "How will pressure test sea water pipeline after welding? internal ques", "family": "Workshop & Welding", "subtopic": "Pipe Pressure Test", "tid": "CHE-2026-08-0669", "tray": "review", "candidates": [ { "answer_id": "PIPEFAB-011", "score": 0.6882192492485046, "sibling_score": 0.6882192492485046, "answer_score": null, "sibling_qid": "MUM-2026-04-2104-Q008S8", "sibling_text": "gi pipe welding welding in high tensile steel oxygen acetylene line pressure test procedure", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Explain the repair procedure for a GI or GRP pipe, including welding a GI pipe", "cross_family": false }, { "answer_id": "PPT-002", "score": 0.6501203775405884, "sibling_score": 0.6501203775405884, "answer_score": null, "sibling_qid": "KOC-2022-06-1787-Q004", "sibling_text": "bunker line pressure testing procedure how often done pressure value what to check during testing and for how much time where to drain oil left in the line after testing", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Bunker line pressure test: procedure, frequency, pressure, duration, checks and draining", "cross_family": false }, { "answer_id": "DDHSC-006", "score": 0.6468435525894165, "sibling_score": 0.6468435525894165, "answer_score": null, "sibling_qid": "KOC-2025-07-1922-Q007", "sibling_text": "seaside valves pressure testing in drydock requirement comes from which code which regulation internal questions", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "How is the sea chest inspected and maintained in drydock — including the valve and its pressure test — and which regulation requires it?", "cross_family": true } ] }, { "qid": "CHE-2026-08-0670-Q001", "text": "Type of ship? ", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "CHE-2026-08-0670", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.836262583732605, "sibling_score": 0.836262583732605, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8015266060829163, "sibling_score": 0.8015266060829163, "answer_score": 0.5469690978527069, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8002626895904541, "sibling_score": 0.8002626895904541, "answer_score": 0.5215309828519821, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "CHE-2026-08-0670-Q003", "text": "Type of boiler, which is efficient? smoke tube or water tube? Why?", "family": "Boilers - Construction & Components", "subtopic": "Boiler Tubes", "tid": "CHE-2026-08-0670", "tray": "review", "candidates": [ { "answer_id": "BLR-TUBE-P01-001", "score": 0.7086161971092224, "sibling_score": 0.7086161971092224, "answer_score": null, "sibling_qid": "CHE-2026-05-0632-Q010", "sibling_text": "why smoke tube boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "01. Attaching, fitting and supporting boiler tubes", "cross_family": false }, { "answer_id": "BLR-TUBE-P01-002", "score": 0.7040783166885376, "sibling_score": 0.7040783166885376, "answer_score": 0.49519039094448086, "sibling_qid": "CHE-2026-05-0605-Q005", "sibling_text": "boiler types advantage of water tube boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "03. Types, functions and arrangement of boiler tubes", "cross_family": false }, { "answer_id": "BFS-257-008", "score": 0.6355034708976746, "sibling_score": 0.6355034708976746, "answer_score": null, "sibling_qid": "MUM-2024-09-2770-Q007", "sibling_text": "bolier type water tube explain soot blow method", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler / EGB soot-blowing — procedure, precautions, sequence", "cross_family": true } ] }, { "qid": "CHE-2026-08-0670-Q004", "text": "Boiler safety valve setting? lots of cross questions.", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "CHE-2026-08-0670", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.8219586610794067, "sibling_score": 0.8219586610794067, "answer_score": null, "sibling_qid": "KOL-2026-01-3904-Q003", "sibling_text": "setting of boiler safety valve cross questions in high lift safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACRV-005", "score": 0.7878409028053284, "sibling_score": 0.7878409028053284, "answer_score": null, "sibling_qid": "MUM-2026-06-3549-Q005", "sibling_text": "boiler safety valve maximum questions", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.7870339751243591, "sibling_score": 0.7870339751243591, "answer_score": null, "sibling_qid": "CHE-2026-05-0597-Q020", "sibling_text": "boiler safety valve how the setting is done", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false } ] }, { "qid": "CHE-2026-08-0670-Q005", "text": "Improved safety valve how different from high lift What all features?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "CHE-2026-08-0670", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.7628142237663269, "sibling_score": 0.7628142237663269, "answer_score": null, "sibling_qid": "MUM-2026-06-3405-Q017", "sibling_text": "improved high lift safety valve details", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-003", "score": 0.44819719791412355, "sibling_score": null, "answer_score": 0.44819719791412355, "sibling_qid": "", "sibling_text": "the accumulation test and the safety valve required lift how lift and capacity are verified and why accumulation must stay inside the limit popping test proves setting accumulation test proves installed relieving capacity not two versions of one test sizing the class discharge formula sizes the aggregate valve area from the maker s specified peak evaporation using a constant for the valve type", "sibling_family": "", "via": "answer_title", "answer_title": "The accumulation test and the safety valve — required lift, how lift and capacity are verified, and why accumulation must stay inside the limit", "cross_family": false }, { "answer_id": "ACRV-005", "score": 0.4442506283521652, "sibling_score": null, "answer_score": 0.4442506283521652, "sibling_qid": "", "sibling_text": "difference between a safety valve and a relief valve safety valve normally steam air or gas service rapid pop action at set pressure reseats after the pressure falls by its blowdown discharge arrangement depends on design and service relief valve primarily liquid service opens gradually generally in proportion to overpressure commonly returns liquid to suction tank or another safe path depending o", "sibling_family": "", "via": "answer_title", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": false } ] }, { "qid": "CHE-2026-08-0670-Q008", "text": "Blue smoke from funnel reasons?", "family": "2-Stroke - Operations & Casualty", "subtopic": "Smoke from Funnel", "tid": "CHE-2026-08-0670", "tray": "new", "candidates": [ { "answer_id": "SMK-FUNL-BF01-001", "score": 0.583129346370697, "sibling_score": 0.583129346370697, "answer_score": 0.3242160320281982, "sibling_qid": "MUM-2024-01-2219-Q004", "sibling_text": "smoke from funnel very subjective questions here says answer as a 2nd engineer not class 4 got fn 3", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "The bridge reports smoke from the funnel — what is your action as 2/E?", "cross_family": false }, { "answer_id": "SMK-FUNL-BF01-004", "score": 0.5234007835388184, "sibling_score": 0.5234007835388184, "answer_score": null, "sibling_qid": "CHE-2026-04-0257-Q011", "sibling_text": "funnel found spark what you will check", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "There are sparks from the funnel on arrival in port — what is the reason and your action?", "cross_family": false }, { "answer_id": "AE-HOT-BLOW-001", "score": 0.5218046307563782, "sibling_score": 0.5218046307563782, "answer_score": null, "sibling_qid": "MUM-2022-12-1036-Q005", "sibling_text": "ae giving dark smoke reasons", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE / DG giving black or dark smoke — causes and corrective action", "cross_family": true } ] }, { "qid": "CHE-2026-08-0670-Q013", "text": "what is screw in break pad ? internal ques", "family": "Auxiliary Equipment", "subtopic": "Windlass / Winch", "tid": "CHE-2026-08-0670", "tray": "new", "candidates": [ { "answer_id": "WBRT-005", "score": 0.6238247752189636, "sibling_score": 0.6238247752189636, "answer_score": 0.3561527609825134, "sibling_qid": "CHE-2023-11-0396-Q003", "sibling_text": "if you have to fix brake pad in mooring winch what type of screw you will use specially he want to know the name", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Brake maintenance: lining, drum, pad fitting and adjustment", "cross_family": false }, { "answer_id": "PURIF-172-001", "score": 0.5593775510787964, "sibling_score": 0.5593775510787964, "answer_score": null, "sibling_qid": "KOC-2025-10-1952-Q021", "sibling_text": "how friction pad is attached i said how it is put to the groove he wanted to know how pad is attached on the small t shaped thingy screw and it is counter sunk", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Purifier not picking up speed — drive, clutch, brake, shear pin", "cross_family": true }, { "answer_id": "WIND-WNCH-007", "score": 0.5216979384422302, "sibling_score": 0.5216979384422302, "answer_score": null, "sibling_qid": "MUM-2025-09-2404-Q003", "sibling_text": "3anchor windlass brake lining how you change how to remove waht type of screw and material new lining size and thickness", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Brake lining renewal", "cross_family": false } ] }, { "qid": "CHE-2026-08-0671-Q001", "text": "Types of engines sailed?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2026-08-0671", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8051501512527466, "sibling_score": 0.8051501512527466, "answer_score": null, "sibling_qid": "CHE-2026-03-0250-Q003", "sibling_text": "type of engines sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.7266881465911865, "sibling_score": 0.7266881465911865, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q001", "sibling_text": "type of ship sailed and engines details", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7089822292327881, "sibling_score": 0.7089822292327881, "answer_score": null, "sibling_qid": "KOL-2025-12-2031-Q002", "sibling_text": "type of ship and engine sailed engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "CHE-2026-08-0671-Q002", "text": "Draw power card and show start and end of injection? Exhaust valve opening on power card? Draw card and with leaky piston ring?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Indicator Card / Power Card", "tid": "CHE-2026-08-0671", "tray": "review", "candidates": [ { "answer_id": "INDCARD-C-002", "score": 0.7237797975540161, "sibling_score": 0.7237797975540161, "answer_score": null, "sibling_qid": "KOL-2026-03-2045-Q009", "sibling_text": "draw card diagram injector leaking", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Fuel-injector leakage or dripping on the draw/power card", "cross_family": false }, { "answer_id": "INDCARD-C-003", "score": 0.7224476933479309, "sibling_score": 0.7224476933479309, "answer_score": null, "sibling_qid": "KOL-2020-01-1510-Q002", "sibling_text": "power card diagram after that if piston ring broken then what", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Blow-past and worn/broken piston rings on the cards", "cross_family": false }, { "answer_id": "IND-CARD-B-001", "score": 0.6981787085533142, "sibling_score": 0.6981787085533142, "answer_score": null, "sibling_qid": "KOL-2017-10-3100-Q003", "sibling_text": "power card draw card light spring dia significance draw all in case of leaky nozzle", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Light spring diagram — purpose, how it is taken, what it shows", "cross_family": false } ] }, { "qid": "CHE-2026-08-0671-Q003", "text": "What type of crosshead, different types of crossheads and their difference?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Crosshead Bearing", "tid": "CHE-2026-08-0671", "tray": "review", "candidates": [ { "answer_id": "CXH-BRG-FINAL-1-007", "score": 0.7296258807182312, "sibling_score": 0.7296258807182312, "answer_score": null, "sibling_qid": "CHE-2026-05-0647-Q002", "sibling_text": "types of cross head", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Guide shoes & strips: function, types, effect of increased clearance", "cross_family": false }, { "answer_id": "XHEAD-303-003", "score": 0.6208242177963257, "sibling_score": 0.6208242177963257, "answer_score": null, "sibling_qid": "KOC-2023-01-0976-Q005", "sibling_text": "difference between cross head bearing pin and crosshead bearing pin y so", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead pin and bearing design, ovality and diameter checks, modern shell design", "cross_family": false }, { "answer_id": "XHD-BRG-C-002", "score": 0.617662250995636, "sibling_score": 0.617662250995636, "answer_score": null, "sibling_qid": "KOC-2023-03-1808-Q002", "sibling_text": "crosshead o h", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "B. Crosshead bearing overhaul and removal: exact steps, tackle, withdrawing the pin", "cross_family": false } ] }, { "qid": "CHE-2026-08-0671-Q006", "text": "Other types of bearing, difference between outward and plain bearings?", "family": "Turbocharger", "subtopic": "TC Bearing", "tid": "CHE-2026-08-0671", "tray": "new", "candidates": [ { "answer_id": "BRG-NOM-002", "score": 0.5974704027175903, "sibling_score": 0.5974704027175903, "answer_score": 0.4654572904109955, "sibling_qid": "MUM-2026-06-3376-Q016", "sibling_text": "for which thrust it s used difference b w ball and roller bearing", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Ball, Roller, Radial and Axial Bearings — Choosing the Type", "cross_family": false }, { "answer_id": "BRG-NOM-005", "score": 0.5888382196426392, "sibling_score": 0.5888382196426392, "answer_score": null, "sibling_qid": "KOC-2025-11-1968-Q009", "sibling_text": "difference between end loaded and bush bearings", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bush, Insert, End-Loaded and Undersize Bearings — and Ordering Data", "cross_family": true }, { "answer_id": "BRG-NOM-003", "score": 0.5821456909179688, "sibling_score": 0.5821456909179688, "answer_score": null, "sibling_qid": "CHE-2026-04-0522-Q002", "sibling_text": "thin shell bearing vs thick shell bearing where thick shell bearing is still used", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Thin-Shell, Bi-Metal and Tri-Metal Bearings — Construction and Why Thin-Shell", "cross_family": true } ] }, { "qid": "CHE-2026-08-0671-Q008", "text": "Bed plates stress and where it is connected and how? parts of holding down bolts and why spherical nut?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Holding Down Bolts", "tid": "CHE-2026-08-0671", "tray": "new", "candidates": [ { "answer_id": "CHK-RM-001", "score": 0.5906022787094116, "sibling_score": 0.5906022787094116, "answer_score": 0.4870099365711212, "sibling_qid": "KOL-2018-10-1428-Q003", "sibling_text": "how bedplate is connected to hull", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What are chocks? Function, types, where fitted and how placed — which have the biggest area, and how does the bedplate connect to the hull?", "cross_family": false }, { "answer_id": "FB-COUP-001", "score": 0.5797562003135681, "sibling_score": 0.5797562003135681, "answer_score": null, "sibling_qid": "KOC-2026-09-2175-Q005", "sibling_text": "fitted bolts where", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What fitted bolts are, what they do, and where they sit onboard", "cross_family": false }, { "answer_id": "TR-TB-PA-006", "score": 0.5644503235816956, "sibling_score": 0.5644503235816956, "answer_score": null, "sibling_qid": "MUM-2026-09-3906-Q003", "sibling_text": "hold down bolt material specification", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Material, condition, fretting, vibration and elongation", "cross_family": false } ] }, { "qid": "CHE-2026-08-0671-Q012", "text": "⁠difference between intercooler and air cooler?", "family": "Air Compressor", "subtopic": "Inter-cooler / After-cooler", "tid": "CHE-2026-08-0671", "tray": "review", "candidates": [ { "answer_id": "ICAC-299-003", "score": 0.7493792176246643, "sibling_score": 0.7493792176246643, "answer_score": null, "sibling_qid": "CHE-2025-08-0204-Q008", "sibling_text": "difference b w main engine air cooler and mac intercooler", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Arrangement, flow path and tube-vs-shell routing", "cross_family": false }, { "answer_id": "ICAC-299-007", "score": 0.6768520474433899, "sibling_score": 0.6768520474433899, "answer_score": null, "sibling_qid": "KOL-2018-01-1338-Q005", "sibling_text": "intercooler tubes material nd bursting disc material intercooler purpose", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Tube and bursting-disc material and construction", "cross_family": false }, { "answer_id": "ICAC-299-001", "score": 0.6722775101661682, "sibling_score": 0.6722775101661682, "answer_score": 0.5421984791755676, "sibling_qid": "CHE-2026-02-0334-Q005", "sibling_text": "main air compressor intercooler and aftercooler function", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Purpose and function of the intercooler and aftercooler", "cross_family": false } ] }, { "qid": "CHE-2026-08-0672-Q001", "text": "Bow flare?", "family": "Ship Construction & Stability", "subtopic": "Bow / Stem / Breast Hook", "tid": "CHE-2026-08-0672", "tray": "new", "candidates": [ { "answer_id": "DRG-B-009", "score": 0.48120173811912537, "sibling_score": 0.48120173811912537, "answer_score": null, "sibling_qid": "KOL-2020-09-0422-Q008", "sibling_text": "bowsing tackle", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Bowsing tackle and tricing pendant", "cross_family": true }, { "answer_id": "PIPEFAB-012", "score": 0.47265511751174927, "sibling_score": 0.47265511751174927, "answer_score": null, "sibling_qid": "KOL-2018-04-3137-Q004", "sibling_text": "flaring tool", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "What is the purpose of a flaring tool?", "cross_family": true }, { "answer_id": "PAR-ROLL-003", "score": 0.47244444489479065, "sibling_score": 0.47244444489479065, "answer_score": null, "sibling_qid": "KOL-2018-04-0173-Q003", "sibling_text": "parametric rolling and effect of large flare", "sibling_family": "", "via": "sibling", "answer_title": "03. Why container / car-carrier / Ro-Ro ships, and why not bulk carriers", "cross_family": false } ] }, { "qid": "CHE-2026-08-0672-Q003", "text": "Hatch cover water integrity test?", "family": "Cargo Ops - Bulk Carriers", "subtopic": "Hatch Cover", "tid": "CHE-2026-08-0672", "tray": "review", "candidates": [ { "answer_id": "HATCH-CVR-005", "score": 0.7019978165626526, "sibling_score": 0.7019978165626526, "answer_score": 0.5138485550880432, "sibling_qid": "CHE-2025-12-0327-Q010", "sibling_text": "chalk test and hose test procedure for hatch cover", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "What is the chalk test and hose test procedure for hatch covers?", "cross_family": false }, { "answer_id": "HATCH-CVR-007", "score": 0.6608903408050537, "sibling_score": 0.6608903408050537, "answer_score": 0.4474915504455566, "sibling_qid": "CHE-2026-04-0169-Q007", "sibling_text": "how the water ingress is prevent in this folding type hatch cover", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "What arrangements prevent water ingress through hatch covers — including the folding type?", "cross_family": false }, { "answer_id": "WTD-002", "score": 0.6463946104049683, "sibling_score": 0.6463946104049683, "answer_score": null, "sibling_qid": "MUM-2026-03-0830-Q003", "sibling_text": "watertight testing", "sibling_family": "SOLAS - Watertight & Closing Appliances", "via": "sibling", "answer_title": "Inspecting, maintaining and testing watertight doors and watertight integrity in survey", "cross_family": true } ] }, { "qid": "CHE-2026-08-0672-Q007", "text": "Water in boiler drum actions?", "family": "Boilers - Feed Water & Water Treatment", "subtopic": "", "tid": "CHE-2026-08-0672", "tray": "review", "candidates": [ { "answer_id": "LWL-005", "score": 0.6877807378768921, "sibling_score": 0.6877807378768921, "answer_score": null, "sibling_qid": "CHE-2026-03-0493-Q002", "sibling_text": "boiler low water level what are actions", "sibling_family": "Boilers - Feed Water & Water Treatment", "via": "sibling", "answer_title": "How do you test the boiler low-water alarm and the low-low level trip? How do you test high level, and why is there a time delay in the alarm?", "cross_family": false }, { "answer_id": "UPT-FIRE-001", "score": 0.6499624252319336, "sibling_score": 0.6499624252319336, "answer_score": null, "sibling_qid": "KOL-2019-11-3288-Q002", "sibling_text": "actions as 2 e on boiler uptake fire", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "The 4/E reports an uptake fire — your actions as 2/E", "cross_family": true }, { "answer_id": "BLR-SURV-P02-008", "score": 0.6488721370697021, "sibling_score": 0.6488721370697021, "answer_score": null, "sibling_qid": "CHE-2026-03-0496-Q001", "sibling_text": "boiler low level suddenly feed water pump is continuous running type actions", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": true } ] }, { "qid": "CHE-2026-08-0673-Q001", "text": "Written result update and how many orals pending?", "family": "Status & Introduction", "subtopic": "", "tid": "CHE-2026-08-0673", "tray": "new", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.5649871826171875, "sibling_score": 0.5649871826171875, "answer_score": null, "sibling_qid": "MUM-2026-05-3187-Q001", "sibling_text": "status of other orals and written", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": true }, { "answer_id": "DUS-P1-02", "score": 0.4201122224330902, "sibling_score": 0.4201122224330902, "answer_score": null, "sibling_qid": "KOL-2025-08-3851-Q006", "sibling_text": "drydock plans rudder checks cross questions what about other written oral exams status told waiting for naval written result to come all other paper cleared", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Plans, drawings and special tools kept ready for drydock — engine-department view", "cross_family": true }, { "answer_id": "EXHV-P01-001", "score": 0.4056568741798401, "sibling_score": 0.4056568741798401, "answer_score": null, "sibling_qid": "KOC-2026-08-2106-Q001", "sibling_text": "status of written oral company type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false } ] }, { "qid": "CHE-2026-08-0673-Q002", "text": "Blow flare? Why used in container ship?", "family": "Cargo Ops - Bulk Carriers", "subtopic": "Container Cargo / Fire", "tid": "CHE-2026-08-0673", "tray": "review", "candidates": [ { "answer_id": "CONT-FIRE-FINAL-1-002", "score": 0.6605612635612488, "sibling_score": 0.6605612635612488, "answer_score": null, "sibling_qid": "MUM-2024-04-0168-Q006", "sibling_text": "container ship cargo hold fire detection", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Cargo-hold fire — detection, ventilation shut-off and the sample-extraction system", "cross_family": false }, { "answer_id": "SHIPTYPE-BTC-002", "score": 0.6508071422576904, "sibling_score": 0.6508071422576904, "answer_score": 0.49003102779388424, "sibling_qid": "CHE-2026-04-0153-Q005", "sibling_text": "why bow flare in container vessel not in tankers", "sibling_family": "", "via": "sibling", "answer_title": "Why a container ship has more bow flare than a bulk carrier or tanker", "cross_family": false }, { "answer_id": "FIRE-P04-06", "score": 0.6362284421920776, "sibling_score": 0.6362284421920776, "answer_score": null, "sibling_qid": "MUM-2025-10-0508-Q008", "sibling_text": "additional fire fighting in container which is not there on other ships", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Container-ship additional firefighting — SOLAS II-2/10.7.3, water-mist lance, HydroPen", "cross_family": true } ] }, { "qid": "CHE-2026-08-3862-Q001", "text": "Written status?", "family": "Status & Introduction", "subtopic": "WRITTEN STATUS", "tid": "CHE-2026-08-3862", "tray": "new", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.6058838367462158, "sibling_score": 0.6058838367462158, "answer_score": null, "sibling_qid": "MUM-2026-03-1294-Q001", "sibling_text": "status of writtens and orals", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": true }, { "answer_id": "EXHV-P01-001", "score": 0.5800393223762512, "sibling_score": 0.5800393223762512, "answer_score": null, "sibling_qid": "KOC-2026-08-2106-Q001", "sibling_text": "status of written oral company type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "FLAG-ST-001", "score": 0.5046877861022949, "sibling_score": 0.5046877861022949, "answer_score": null, "sibling_qid": "KOL-2025-08-1003-Q005", "sibling_text": "flag state", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Flag State — authority, role, duties and requirements", "cross_family": true } ] }, { "qid": "CHE-2026-08-3862-Q003", "text": "Why in container vessel its impact is more? ", "family": "Ship Construction & Stability", "subtopic": "Parametric / Synchronous Rolling", "tid": "CHE-2026-08-3862", "tray": "new", "candidates": [ { "answer_id": "FIRE-P04-06", "score": 0.6086564064025879, "sibling_score": 0.6086564064025879, "answer_score": null, "sibling_qid": "MUM-2025-10-0508-Q008", "sibling_text": "additional fire fighting in container which is not there on other ships", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Container-ship additional firefighting — SOLAS II-2/10.7.3, water-mist lance, HydroPen", "cross_family": true }, { "answer_id": "CONT-STAB-001", "score": 0.6050788760185242, "sibling_score": 0.6050788760185242, "answer_score": 0.4755248248577118, "sibling_qid": "MUM-2025-09-0453-Q004", "sibling_text": "container loading on deck affects", "sibling_family": "", "via": "sibling", "answer_title": "Loading containers on deck / at higher tiers — effect on stability and how to improve it", "cross_family": false }, { "answer_id": "DB-TORBOX-B-001", "score": 0.5975592732429504, "sibling_score": 0.5975592732429504, "answer_score": null, "sibling_qid": "MUM-2026-06-3433-Q006", "sibling_text": "why torsion box on container ship why not on bulk carrier and oil tanker", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Torsion box — purpose, location, and why container ships", "cross_family": false } ] }, { "qid": "CHE-2026-08-3862-Q004", "text": "Measures taken to rectify it?", "family": "Ship Construction & Stability", "subtopic": "Parametric / Synchronous Rolling", "tid": "CHE-2026-08-3862", "tray": "new", "candidates": [ { "answer_id": "SGB-212-001", "score": 0.5021852850914001, "sibling_score": 0.5021852850914001, "answer_score": null, "sibling_qid": "KOL-2022-10-1926-Q010", "sibling_text": "and how to rectify", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Dezincification of brass", "cross_family": true }, { "answer_id": "FSE-P02-001", "score": 0.4617413580417633, "sibling_score": 0.4617413580417633, "answer_score": null, "sibling_qid": "MUM-2025-11-0570-Q013", "sibling_text": "measure to reduce fse", "sibling_family": "", "via": "sibling", "answer_title": "Reducing and correcting free surface effect in practice", "cross_family": false }, { "answer_id": "EXHV-P03-008", "score": 0.4221991300582886, "sibling_score": 0.4221991300582886, "answer_score": null, "sibling_qid": "KOL-2020-02-1516-Q009", "sibling_text": "developments for minimising this", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Latest developments in main-engine exhaust valves", "cross_family": true } ] }, { "qid": "CHE-2026-08-3862-Q005", "text": "Difference between immersion suit and Anti exposure suit?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "LSA Code", "tid": "CHE-2026-08-3862", "tray": "new", "candidates": [ { "answer_id": "SCBA-EEBD-005", "score": 0.6093653440475464, "sibling_score": 0.6093653440475464, "answer_score": 0.45223156809806825, "sibling_qid": "KOL-2017-01-0042-Q005", "sibling_text": "difference between firemans outfit ppa immerssion suit when it is used", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fireman's outfit vs PPA vs immersion suit — what each is, when used", "cross_family": true }, { "answer_id": "LB-SURV-C-003", "score": 0.5891599059104919, "sibling_score": 0.5891599059104919, "answer_score": null, "sibling_qid": "CHE-2026-02-0103-Q002", "sibling_text": "immersion suit monthly 6 month and annual maintenance", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Routine maintenance ladder — weekly / monthly / quarterly / 6-monthly onboard checks", "cross_family": false }, { "answer_id": "COT-P03-01", "score": 0.5334722995758057, "sibling_score": 0.5334722995758057, "answer_score": null, "sibling_qid": "KOL-2025-03-0915-Q004", "sibling_text": "protection for body from hazardous cargo chemical and vapours chemical splash suits material and accessories", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "H₂S, benzene and toxic-cargo vapour exposure — hazards, limits, PPE and respirator checks", "cross_family": true } ] }, { "qid": "CHE-2026-08-3862-Q006", "text": "Immersion suit monthly & Annual maintenance? Who can do the maintenance?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "LSA Code", "tid": "CHE-2026-08-3862", "tray": "review", "candidates": [ { "answer_id": "LB-SURV-C-003", "score": 0.7966358065605164, "sibling_score": 0.7966358065605164, "answer_score": null, "sibling_qid": "CHE-2026-02-0103-Q002", "sibling_text": "immersion suit monthly 6 month and annual maintenance", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Routine maintenance ladder — weekly / monthly / quarterly / 6-monthly onboard checks", "cross_family": false }, { "answer_id": "LB-DAVIT-HRU-005", "score": 0.5895569920539856, "sibling_score": 0.5895569920539856, "answer_score": null, "sibling_qid": "MUM-2022-09-0046-Q005", "sibling_text": "5 yearly maintenance on life boat david winch", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "The 5-yearly maintenance and testing of the lifeboat davit and winch", "cross_family": false }, { "answer_id": "LBT-TEST-B-002", "score": 0.5878757834434509, "sibling_score": 0.5878757834434509, "answer_score": 0.42953290343284606, "sibling_qid": "MUM-2026-07-3817-Q009", "sibling_text": "life boat 5 yearly maintenance", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Annual and 5-yearly lifeboat/davit tests (the servicing regime)", "cross_family": false } ] }, { "qid": "CHE-2026-08-3862-Q008", "text": "When to do the test? ", "family": "Ship Construction & Stability", "subtopic": "Inclining Experiment", "tid": "CHE-2026-08-3862", "tray": "new", "candidates": [ { "answer_id": "EXHV-080-BF37-004", "score": 0.5239630341529846, "sibling_score": 0.5239630341529846, "answer_score": null, "sibling_qid": "MUM-2025-02-2270-Q008", "sibling_text": "when to do it", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "What is the overhaul interval, when do you do it, and what developments increased the TBO?", "cross_family": true }, { "answer_id": "IRT-A-009", "score": 0.463625431060791, "sibling_score": 0.463625431060791, "answer_score": null, "sibling_qid": "KOC-2025-07-1547-Q007", "sibling_text": "period of ir testing", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "How often you test - IR and overhaul intervals, reporting", "cross_family": true }, { "answer_id": "OCR-185-001", "score": 0.4612239897251129, "sibling_score": 0.4612239897251129, "answer_score": null, "sibling_qid": "MUM-2025-07-1562-Q004", "sibling_text": "over current test", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Testing an overcurrent relay / overcurrent trip onboard", "cross_family": true } ] }, { "qid": "CHE-2026-08-3862-Q009", "text": "Suppose results indicates Negative KG what is the corrective action taken ?", "family": "Ship Construction & Stability", "subtopic": "Inclining Experiment", "tid": "CHE-2026-08-3862", "tray": "new", "candidates": [ { "answer_id": "CII-RATE-P02-002", "score": 0.5099560022354126, "sibling_score": 0.5099560022354126, "answer_score": null, "sibling_qid": "MUM-2025-01-2787-Q004", "sibling_text": "cii wt action take get e rating wt correction to be done in seemp", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "2. Corrective action when the ship is rated D or E", "cross_family": true }, { "answer_id": "STAB-GZ-P04-003", "score": 0.49671033024787903, "sibling_score": 0.49671033024787903, "answer_score": 0.35325855761766434, "sibling_qid": "KOC-2025-03-0558-Q002", "sibling_text": "draw gz curve showing negative gm", "sibling_family": "", "via": "sibling", "answer_title": "Negative GM and the angle of loll", "cross_family": false }, { "answer_id": "INCL-EXP-D-001", "score": 0.4690679907798767, "sibling_score": 0.4690679907798767, "answer_score": null, "sibling_qid": "CHE-2026-04-0518-Q005", "sibling_text": "explain inclining experiment why your are calculating kg", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Finding GM — then KG and the centre of gravity", "cross_family": false } ] }, { "qid": "CHE-2026-08-3862-Q012", "text": "What is WIDAS ? How to test the alarm?", "family": "Cargo Ops - Bulk Carriers", "subtopic": "WIDAS / Smoke Detection", "tid": "CHE-2026-08-3862", "tray": "review", "candidates": [ { "answer_id": "CCE-322-006", "score": 0.7183645367622375, "sibling_score": 0.7183645367622375, "answer_score": 0.44703800678253175, "sibling_qid": "CHE-2026-08-3862-Q012", "sibling_text": "widas alarm system how to test the alarm", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Testing the OMD alarm; alarm and shutdown values", "cross_family": false }, { "answer_id": "WIDAS-SMK-004", "score": 0.5455831289291382, "sibling_score": 0.5455831289291382, "answer_score": 0.396637612581253, "sibling_qid": "KOC-2024-10-0441-Q004", "sibling_text": "widas complete how to test", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Testing, maintenance and sensor replacement of WIDAS", "cross_family": false }, { "answer_id": "FIRE-P02-02", "score": 0.5223323702812195, "sibling_score": 0.5223323702812195, "answer_score": null, "sibling_qid": "KOC-2023-01-0144-Q024", "sibling_text": "how do you test hypermist alarms", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist — routine testing, alarms and 2/E maintenance", "cross_family": true } ] }, { "qid": "CHE-2026-08-3863-Q003", "text": "TRACE LUB OIL LINE TILL PISTON AND OUT FROM PISTON FOR MAIN ENGINE?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "", "tid": "CHE-2026-08-3863", "tray": "review", "candidates": [ { "answer_id": "BRLU-581-001", "score": 0.7169541716575623, "sibling_score": 0.7169541716575623, "answer_score": 0.541227251291275, "sibling_qid": "MUM-2026-06-3491-Q007", "sibling_text": "lub oil flow from lub oil pump to sump main engine", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main engine lubrication path — large 2-stroke crosshead engine", "cross_family": false }, { "answer_id": "CYL-LUB-A-001", "score": 0.6686961054801941, "sibling_score": 0.6686961054801941, "answer_score": null, "sibling_qid": "KOL-2021-11-3482-Q007", "sibling_text": "a e lube oil systems explain how it circulates how liner is lubricated and some cross questions on piston scrapper ring", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Cylinder lubrication — how it is carried out and its purpose", "cross_family": false }, { "answer_id": "XHD-BRG-B-007", "score": 0.6509947180747986, "sibling_score": 0.6509947180747986, "answer_score": 0.5148586422204972, "sibling_qid": "KOL-2021-10-1628-Q003", "sibling_text": "crosshead lubrication how pipelines arranged fr lubrication in main engine", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Guide and guide-shoe lubrication, and the oil path from sump to crosshead", "cross_family": false } ] }, { "qid": "CHE-2026-08-3863-Q007", "text": "DRAW GRAPH FOR FUEL TIMING?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Cam & Lead", "tid": "CHE-2026-08-3863", "tray": "new", "candidates": [ { "answer_id": "FCL-P02-001", "score": 0.5571346879005432, "sibling_score": 0.5571346879005432, "answer_score": null, "sibling_qid": "KOC-2024-10-2055-Q005", "sibling_text": "fuel pp timing", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel pump / injection timing check, setting, and adjustment", "cross_family": false }, { "answer_id": "FCL-P03-001", "score": 0.538520336151123, "sibling_score": 0.538520336151123, "answer_score": null, "sibling_qid": "KOL-2021-11-3488-Q004", "sibling_text": "ae fuel pp timing goose neck method", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "AE / auxiliary-engine fuel pump timing check and adjustment", "cross_family": false }, { "answer_id": "FINJ-001", "score": 0.5373572111129761, "sibling_score": 0.5373572111129761, "answer_score": null, "sibling_qid": "KOC-2025-07-1926-Q003", "sibling_text": "draw and explain main engine fuel injector", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel injector — construction, working principle and general arrangement", "cross_family": false } ] }, { "qid": "CHE-2026-08-3863-Q008", "text": "IMPROVED SAFETY VALVE VS HIGH LIFT VALVE?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "CHE-2026-08-3863", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.7810352444648743, "sibling_score": 0.7810352444648743, "answer_score": null, "sibling_qid": "MUM-2026-06-3405-Q017", "sibling_text": "improved high lift safety valve details", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-003", "score": 0.4726389557123184, "sibling_score": null, "answer_score": 0.4726389557123184, "sibling_qid": "", "sibling_text": "the accumulation test and the safety valve required lift how lift and capacity are verified and why accumulation must stay inside the limit popping test proves setting accumulation test proves installed relieving capacity not two versions of one test sizing the class discharge formula sizes the aggregate valve area from the maker s specified peak evaporation using a constant for the valve type", "sibling_family": "", "via": "answer_title", "answer_title": "The accumulation test and the safety valve — required lift, how lift and capacity are verified, and why accumulation must stay inside the limit", "cross_family": false }, { "answer_id": "ACSS-002", "score": 0.46194486021995546, "sibling_score": null, "answer_score": 0.46194486021995546, "sibling_qid": "", "sibling_text": "relief safety valves settings testing lifting reasons bursting disc set just above stage working pressure the class standard accumulation limit is about 10 though the exact set point is a maker sms value non isolable from its stage test to the maker s method easing gear or test rig for lifting pressure log and reset", "sibling_family": "", "via": "answer_title", "answer_title": "Relief / safety valves: settings, testing, lifting reasons; bursting disc", "cross_family": false } ] }, { "qid": "CHE-2026-08-3863-Q009", "text": "DRAW IMPROVED HIGH LIFT SAFETY VALVE?", "family": "Boilers - 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No of attempts ? Type of ship ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2026-08-3864", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.6762645840644836, "sibling_score": 0.6762645840644836, "answer_score": null, "sibling_qid": "KOC-2026-08-2106-Q001", "sibling_text": "status of written oral company type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.6338774561882019, "sibling_score": 0.6338774561882019, "answer_score": null, "sibling_qid": "MUM-2026-06-3459-Q001", "sibling_text": "type of ship sail and status of other function", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.6080157160758972, "sibling_score": 0.6080157160758972, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q001", "sibling_text": "type of vessel engine make written and oral status", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "CHE-2026-08-3864-Q005", "text": "Immersion suit maintenance and pressure test procedure and what's the pressure?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "", "tid": "CHE-2026-08-3864", "tray": "review", "candidates": [ { "answer_id": "LB-SURV-C-003", "score": 0.6555112600326538, "sibling_score": 0.6555112600326538, "answer_score": null, "sibling_qid": "CHE-2026-02-0103-Q002", "sibling_text": "immersion suit monthly 6 month and annual maintenance", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Routine maintenance ladder — weekly / monthly / quarterly / 6-monthly onboard checks", "cross_family": false }, { "answer_id": "ACCT-583-A-001", "score": 0.6277555823326111, "sibling_score": 0.6277555823326111, "answer_score": null, "sibling_qid": "MUM-2026-05-3309-Q010", "sibling_text": "accumulation pressure test procedure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Explain the boiler accumulation pressure test — what it is, its purpose, and how it is carried out (including when and at what interval)", "cross_family": true }, { "answer_id": "DUS-P5-06", "score": 0.6133464574813843, "sibling_score": 0.6133464574813843, "answer_score": null, "sibling_qid": "MUM-2026-06-3515-Q001", "sibling_text": "db ballast tanks pressure testing procedure", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "DB and ballast tank pressure testing — procedure and head", "cross_family": true } ] }, { "qid": "CHE-2026-08-3865-Q001", "text": "Written result update ?", "family": "Status & Introduction", "subtopic": "", "tid": "CHE-2026-08-3865", "tray": "new", "candidates": [ { "answer_id": "FSS-CODE-003", "score": 0.4361013174057007, "sibling_score": 0.4361013174057007, "answer_score": null, "sibling_qid": "KOC-2024-12-0491-Q002", "sibling_text": "reason for update fire lot of xqns", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "What is the latest amendment to the FSS Code, and why is the Code amended?", "cross_family": true }, { "answer_id": "MEGI-304-002", "score": 0.41184842586517334, "sibling_score": 0.41184842586517334, "answer_score": null, "sibling_qid": "MUM-2026-03-1296-Q005", "sibling_text": "latest modification in df engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "2. 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Statutory", "via": "sibling", "answer_title": "Flag State — authority, role, duties and requirements", "cross_family": true } ] }, { "qid": "CHE-2026-08-3869-Q002", "text": "Type of ship?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2026-08-3869", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8361091613769531, "sibling_score": 0.8361091613769531, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8013883233070374, "sibling_score": 0.8013883233070374, "answer_score": 0.5470469176769256, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8000956177711487, "sibling_score": 0.8000956177711487, "answer_score": 0.5211817562580109, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "CHE-2026-08-3869-Q005", "text": "⁠hyper mist manual and automatic activations?", "family": "SOLAS - Fire Safety", "subtopic": "Sprinkler / Water Mist / Hi-Fog", "tid": "CHE-2026-08-3869", "tray": "new", "candidates": [ { "answer_id": "FIRE-P01-02", "score": 0.5840733647346497, "sibling_score": 0.5840733647346497, "answer_score": 0.3678475201129913, "sibling_qid": "KOL-2025-09-1086-Q006", "sibling_text": "what is hyper mist and how activated", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist — automatic and manual activation, detector logic, and backup supply", "cross_family": false }, { "answer_id": "FIRE-P01-01", "score": 0.553788959980011, "sibling_score": 0.553788959980011, "answer_score": null, "sibling_qid": "MUM-2026-06-3586-Q002", "sibling_text": "hyper mist working", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist / water-mist system — draw and explain the machinery-space arrangement and normal working", "cross_family": false }, { "answer_id": "FIRE-P02-02", "score": 0.5379549860954285, "sibling_score": 0.5379549860954285, "answer_score": 0.3160345137119293, "sibling_qid": "CHE-2025-12-0327-Q013", "sibling_text": "hyper mist system automatic and manual testing procedures", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist — routine testing, alarms and 2/E maintenance", "cross_family": false } ] }, { "qid": "CHE-2026-08-3869-Q006", "text": "⁠shaft power limitations?", "family": "Electrical - Generator & Alternator", "subtopic": "Shaft Generator", "tid": "CHE-2026-08-3869", "tray": "review", "candidates": [ { "answer_id": "SHAFT-GEN-003", "score": 0.7581718564033508, "sibling_score": 0.7581718564033508, "answer_score": null, "sibling_qid": "KOC-2026-02-1703-Q003", "sibling_text": "shaft generator limitations", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Limitations, drawbacks and disadvantages of a shaft generator", "cross_family": false }, { "answer_id": "EEXI-005", "score": 0.6930428147315979, "sibling_score": 0.6930428147315979, "answer_score": 0.46453242003917694, "sibling_qid": "MUM-2026-05-3261-Q004", "sibling_text": "shapoli shaft power limitation", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "The Engine Power Limiter — how it is fitted on MC and ME engines, the setpoint, ShaPoLi, the records, and derating to meet EEXI", "cross_family": true }, { "answer_id": "SHAFT-GEN-001", "score": 0.5879649519920349, "sibling_score": 0.5879649519920349, "answer_score": null, "sibling_qid": "KOC-2023-01-0127-Q011", "sibling_text": "shaft generator full details", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Shaft generator — working, arrangement, components and function", "cross_family": false } ] }, { "qid": "CHE-2026-08-3869-Q008", "text": "⁠co2 bottle bursting disc material (latest regulation)?", "family": "SOLAS - Fire Safety", "subtopic": "CO2 System", "tid": "CHE-2026-08-3869", "tray": "review", "candidates": [ { "answer_id": "CO2-SYS-005", "score": 0.6745229363441467, "sibling_score": 0.6745229363441467, "answer_score": null, "sibling_qid": "KOC-2024-07-0357-Q010", "sibling_text": "co2 bursting disc use", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 system safeties, CO2-room requirements, alarms and ventilation", "cross_family": false }, { "answer_id": "CO2-SYS-002", "score": 0.6688581705093384, "sibling_score": 0.6688581705093384, "answer_score": null, "sibling_qid": "KOL-2025-09-1081-Q009", "sibling_text": "latest regulations for pressure testing of co2 bottles", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 maintenance, inspection, testing and survey routines", "cross_family": false }, { "answer_id": "CO2-SYS-006", "score": 0.6536774039268494, "sibling_score": 0.6536774039268494, "answer_score": 0.42847585082054135, "sibling_qid": "CHE-2026-04-0152-Q005", "sibling_text": "empty co2 bottle regulation", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 bottles, manifolds, pilot cylinders and valve components", "cross_family": false } ] }, { "qid": "CHE-2026-08-3870-Q001", "text": "Written status?", "family": "Status & Introduction", "subtopic": "", "tid": "CHE-2026-08-3870", "tray": "new", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.6058264374732971, "sibling_score": 0.6058264374732971, "answer_score": null, "sibling_qid": "MUM-2026-03-1294-Q001", "sibling_text": "status of writtens and orals", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": true }, { "answer_id": "EXHV-P01-001", "score": 0.5798769593238831, "sibling_score": 0.5798769593238831, "answer_score": null, "sibling_qid": "KOC-2026-08-2106-Q001", "sibling_text": "status of written oral company type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "FLAG-ST-001", "score": 0.503226637840271, "sibling_score": 0.503226637840271, "answer_score": null, "sibling_qid": "KOL-2025-08-1003-Q005", "sibling_text": "flag state", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Flag State — authority, role, duties and requirements", "cross_family": true } ] }, { "qid": "CHE-2026-08-3870-Q002", "text": "Type of ship?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2026-08-3870", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8361092209815979, "sibling_score": 0.8361092209815979, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8013883233070374, "sibling_score": 0.8013883233070374, "answer_score": 0.5470469176769256, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8000956177711487, "sibling_score": 0.8000956177711487, "answer_score": 0.5211817562580109, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "CHE-2026-08-3871-Q001", "text": "Type of ship and engine type last sailed?", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "CHE-2026-08-3871", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8113232254981995, "sibling_score": 0.8113232254981995, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.7889004349708557, "sibling_score": 0.7889004349708557, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q001", "sibling_text": "type of ship sailed and engines details", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7247831225395203, "sibling_score": 0.7247831225395203, "answer_score": null, "sibling_qid": "KOL-2025-12-2031-Q002", "sibling_text": "type of ship and engine sailed engine nomenclature", "sibling_family": "2-Stroke - 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Lubrication, tribology & the types of lubrication", "cross_family": false }, { "answer_id": "HYDRO-LUB-002", "score": 0.5946695804595947, "sibling_score": 0.5946695804595947, "answer_score": 0.43130781352519987, "sibling_qid": "KOC-2026-02-1099-Q005", "sibling_text": "hydrodynamic lubrication figure", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "2. Hydrodynamic lubrication & oil-wedge formation", "cross_family": false } ] }, { "qid": "CHE-2026-08-3871-Q004", "text": "After cutting out unit , what will u do with vit?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "VIT Mechanism", "tid": "CHE-2026-08-3871", "tray": "new", "candidates": [ { "answer_id": "VIT-MECH-D-002", "score": 0.6195926070213318, "sibling_score": 0.6195926070213318, "answer_score": 0.25930735766887664, "sibling_qid": "CHE-2026-05-0570-Q003", "sibling_text": "after one unit cut off how will u adjust vit and where u will adjust the vit", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "VIT malfunction, cut-out and unit isolation — checks, calibration, precautions", "cross_family": false }, { "answer_id": "COS343-002", "score": 0.5195629000663757, "sibling_score": 0.5195629000663757, "answer_score": null, "sibling_qid": "MUM-2024-05-1080-Q002", "sibling_text": "how to cut off one unit", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How do you cut off / cut out one main-engine fuel pump (unit)?", "cross_family": false }, { "answer_id": "VIT-MECH-A-001", "score": 0.5087366700172424, "sibling_score": 0.5087366700172424, "answer_score": null, "sibling_qid": "KOL-2016-09-3001-Q001", "sibling_text": "vit overhaul", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "VIT — what it is, why it is fitted, and its trade-offs", "cross_family": false } ] }, { "qid": "CHE-2026-08-3872-Q001", "text": "Ship type?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2026-08-3872", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8144415020942688, "sibling_score": 0.8144415020942688, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.7948290109634399, "sibling_score": 0.7948290109634399, "answer_score": 0.5065393686294556, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7946827411651611, "sibling_score": 0.7946827411651611, "answer_score": 0.5434755146503448, "sibling_qid": "CHE-2026-05-0614-Q001", "sibling_text": "start from type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "CHE-2026-08-3872-Q004", "text": "How much peak pressure in your ship?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Compression / Expansion Ratio", "tid": "CHE-2026-08-3872", "tray": "new", "candidates": [ { "answer_id": "PMAX-PCOMP-BF041-006", "score": 0.5910558700561523, "sibling_score": 0.5910558700561523, "answer_score": null, "sibling_qid": "KOC-2025-10-1055-Q007", "sibling_text": "mep pcom pmax pressures", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Explain MEP, Pcomp and Pmax", "cross_family": false }, { "answer_id": "PERF-470-006", "score": 0.5727461576461792, "sibling_score": 0.5727461576461792, "answer_score": 0.44848572909832, "sibling_qid": "MUM-2025-01-2792-Q001", "sibling_text": "what type of ship sailed what was the pmax and pcomp", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Your ship's Pmax and Pcomp — values and use in performance assessment", "cross_family": false }, { "answer_id": "FPP-049-001", "score": 0.5560643672943115, "sibling_score": 0.5560643672943115, "answer_score": null, "sibling_qid": "MUM-2023-10-1064-Q003", "sibling_text": "fuel pp pressure plz answer 900bar", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "What pressure is developed at the fuel pump, and at injection?", "cross_family": true } ] }, { "qid": "CHE-2026-08-3872-Q009", "text": "Thermostatic expansion valve exact- function?", "family": "Refrigeration & AC", "subtopic": "TEV / TXV", "tid": "CHE-2026-08-3872", "tray": "review", "candidates": [ { "answer_id": "TEV-TXV-004", "score": 0.7445690035820007, "sibling_score": 0.7445690035820007, "answer_score": 0.5547851771116257, "sibling_qid": "MUM-2026-05-3294-Q010", "sibling_text": "electronic thermostatic expansion valve", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Electronic expansion valve (electronic TEV)", "cross_family": false }, { "answer_id": "TEV-TXV-002", "score": 0.716767430305481, "sibling_score": 0.716767430305481, "answer_score": 0.5872095465660095, "sibling_qid": "KOL-2018-12-1434-Q004", "sibling_text": "explain thermostatic expansion v v in refrigeration system", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "TEV / TXV — purpose, construction, location and working", "cross_family": false }, { "answer_id": "TEV-TXV-003", "score": 0.6796439290046692, "sibling_score": 0.6796439290046692, "answer_score": null, "sibling_qid": "KOC-2026-04-1125-Q006", "sibling_text": "internal and external equilizing thermostatic expansion valve difference", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Equalizing line — internal vs external equalized TEV", "cross_family": false } ] }, { "qid": "CHE-2026-08-3872-Q010", "text": "Ship entered the drydock? What are all the readings you will take?", "family": "Drydock & Underwater Surveys", "subtopic": "", "tid": "CHE-2026-08-3872", "tray": "review", "candidates": [ { "answer_id": "DUS-P1-01", "score": 0.723453938961029, "sibling_score": 0.723453938961029, "answer_score": null, "sibling_qid": "KOC-2024-07-0364-Q022", "sibling_text": "ship is entering drydock what all you will check", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Drydock preparation as 2E — full workflow from office confirmation to entry", "cross_family": false }, { "answer_id": "DDHSC-001", "score": 0.720032274723053, "sibling_score": 0.720032274723053, "answer_score": 0.5521116405725479, "sibling_qid": "MUM-2025-12-0659-Q001", "sibling_text": "ship is in dry dock all water removed what all checks you will carry out", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Ship is in drydock and the dock is pumped dry — what checks do you carry out as Second Engineer?", "cross_family": false }, { "answer_id": "DUS-P1-02", "score": 0.7190203070640564, "sibling_score": 0.7190203070640564, "answer_score": null, "sibling_qid": "KOL-2026-05-4197-Q005", "sibling_text": "name four gauges used onboard during dry dock", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Plans, drawings and special tools kept ready for drydock — engine-department view", "cross_family": false } ] }, { "qid": "CHE-2026-08-3872-Q012", "text": "NDT METHODS?", "family": "NDT & Material Testing", "subtopic": "NDT Methods (MPI/DPT/UT/RT)", "tid": "CHE-2026-08-3872", "tray": "review", "candidates": [ { "answer_id": "NDT-METH-P01-001", "score": 0.6524352431297302, "sibling_score": 0.6524352431297302, "answer_score": 0.3845199108123779, "sibling_qid": "MUM-2024-08-2238-Q004", "sibling_text": "ndt and dt", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "NDT methods, NDT vs destructive testing, and onboard use", "cross_family": false }, { "answer_id": "NDT-METH-P01-002", "score": 0.6231914162635803, "sibling_score": 0.6231914162635803, "answer_score": 0.2503190666437149, "sibling_qid": "CHE-2026-04-0501-Q006", "sibling_text": "ndt dpt", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Dye penetrant test (DPT): principle, procedure, penetrant/developer properties, safety", "cross_family": false }, { "answer_id": "NDT-METH-P02-001", "score": 0.5210307240486145, "sibling_score": 0.5210307240486145, "answer_score": null, "sibling_qid": "KOL-2023-12-3661-Q002", "sibling_text": "types of ndt explain mpt", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "1. Magnetic Particle Inspection (MPI / MPT)", "cross_family": false } ] }, { "qid": "CHE-2026-08-3872-Q013", "text": "Explain anyone method exactly?", "family": "NDT & Material Testing", "subtopic": "NDT Methods (MPI/DPT/UT/RT)", "tid": "CHE-2026-08-3872", "tray": "new", "candidates": [ { "answer_id": "EICU-MAN-P01-002", "score": 0.35986554622650146, "sibling_score": 0.35986554622650146, "answer_score": null, "sibling_qid": "KOC-2024-07-1000-Q002", "sibling_text": "me c explain", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "ME / ME-C / ME-B manoeuvring system — diagram and explanation", "cross_family": true }, { "answer_id": "RISK-RA-C-001", "score": 0.3544180393218994, "sibling_score": 0.3544180393218994, "answer_score": null, "sibling_qid": "CHE-2023-11-0395-Q005", "sibling_text": "which is the method tell me with example", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "Preparing and carrying out a shipboard risk assessment", "cross_family": true }, { "answer_id": "A6-NSEC-005", "score": 0.34833788871765137, "sibling_score": 0.34833788871765137, "answer_score": null, "sibling_qid": "MUM-2023-12-0153-Q008", "sibling_text": "seemp explain full", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP — Part I, II & III", "cross_family": true } ] }, { "qid": "CHE-2026-08-3873-Q001", "text": "Type of circuit breaker in HV and 440V?", "family": "Electrical - High Voltage", "subtopic": "", "tid": "CHE-2026-08-3873", "tray": "review", "candidates": [ { "answer_id": "CB-ACBVCBSF6-E-001", "score": 0.7160649299621582, "sibling_score": 0.7160649299621582, "answer_score": 0.5159531861543655, "sibling_qid": "MUM-2026-02-1936-Q006", "sibling_text": "type of circuit breaker used for hv i told vcb", "sibling_family": "", "via": "sibling", "answer_title": "What are the common types of circuit breakers used onboard and where are ACB, MCB, MCCB, VCB and SF6 breakers applied?", "cross_family": false }, { "answer_id": "CBKR-H-001", "score": 0.6788654327392578, "sibling_score": 0.6788654327392578, "answer_score": 0.5276700854301453, "sibling_qid": "KOL-2020-10-2401-Q001", "sibling_text": "what circuit breaker used in hv system compare all", "sibling_family": "", "via": "sibling", "answer_title": "How do VCB and SF6 breakers work in a high-voltage system, and why are they used instead of an ACB?", "cross_family": false }, { "answer_id": "CB-ACB-F-001", "score": 0.658653974533081, "sibling_score": 0.658653974533081, "answer_score": null, "sibling_qid": "MUM-2026-09-3976-Q015", "sibling_text": "type of circuit breaker used in generator", "sibling_family": "Electrical - High Voltage", "via": "sibling", "answer_title": "ACB function & working principle in the ship distribution system", "cross_family": false } ] }, { "qid": "CHE-2026-08-3873-Q002", "text": "Rudder earthing?", "family": "Electrical - Distribution & Earthing", "subtopic": "", "tid": "CHE-2026-08-3873", "tray": "new", "candidates": [ { "answer_id": "SGD-004", "score": 0.5390723943710327, "sibling_score": 0.5390723943710327, "answer_score": 0.4164834156632423, "sibling_qid": "MUM-2025-11-1757-Q003", "sibling_text": "bonding answer intermediate shaft earth bonding and rudder stock bond to hull to makeing all cathodic to prevent corrosion and also used for prevention of main engine bearing from pitting by discharge static charges to hull", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "What is bonding / the bonding-strap arrangement on ship shafting, rudder stock, or hull-connected equipment?", "cross_family": true }, { "answer_id": "RUD-DROP-001", "score": 0.5341861248016357, "sibling_score": 0.5341861248016357, "answer_score": null, "sibling_qid": "KOL-2021-03-1582-Q006", "sibling_text": "checks on rudder in dd", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": true }, { "answer_id": "TRS-002", "score": 0.5280548334121704, "sibling_score": 0.5280548334121704, "answer_score": null, "sibling_qid": "KOC-2026-05-0004-Q005", "sibling_text": "how rudder is connected to rudder carrier bearing", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": true } ] }, { "qid": "CHE-2026-08-3874-Q003", "text": "Management review meeting how will u prepare Ur self?", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "CHE-2026-08-3874", "tray": "review", "candidates": [ { "answer_id": "ISM-DPA-006", "score": 0.6720463633537292, "sibling_score": 0.6720463633537292, "answer_score": 0.45200003385543824, "sibling_qid": "CHE-2026-05-0586-Q016", "sibling_text": "going for management review meeting with dpa from ship how will u present for engine room he is expecting before meeting you have to conduct the meeting in engine room and ask for crews problem", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Presenting the engine room in a management review meeting with the DPA", "cross_family": false }, { "answer_id": "ISM-AUD-P02-006", "score": 0.6104100346565247, "sibling_score": 0.6104100346565247, "answer_score": null, "sibling_qid": "KOL-2022-03-0619-Q007", "sibling_text": "management review", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Master's review, company / management review and change management", "cross_family": false }, { "answer_id": "ISM-ELEM-006", "score": 0.6104100346565247, "sibling_score": 0.6104100346565247, "answer_score": 0.3540490925312042, "sibling_qid": "MUM-2025-06-0335-Q001", "sibling_text": "management review", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Master’s review & management review", "cross_family": false } ] }, { "qid": "CHE-2026-08-3874-Q006", "text": "Sludge tank regulation regarding capacity?", "family": "MARPOL - Annex I (Oil)", "subtopic": "IOPP", "tid": "CHE-2026-08-3874", "tray": "review", "candidates": [ { "answer_id": "OILPOL-OWS-003", "score": 0.7240437865257263, "sibling_score": 0.7240437865257263, "answer_score": 0.5634853422641753, "sibling_qid": "KOC-2025-11-0725-Q001", "sibling_text": "sludge tank capacity calculation explain", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Sludge tank capacity — how is it calculated?", "cross_family": false }, { "answer_id": "OILRES-DISCH-TOPIC467-FINAL-001", "score": 0.6817192435264587, "sibling_score": 0.6817192435264587, "answer_score": 0.48675469160079954, "sibling_qid": "KOL-2016-09-1239-Q005", "sibling_text": "sludge tank capacity criteria and sludge pump type", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Managing sludge and oily residues onboard — tanks, storage, hazards and the regulatory basis", "cross_family": false }, { "answer_id": "IOPP-191-004", "score": 0.6746599078178406, "sibling_score": 0.6746599078178406, "answer_score": null, "sibling_qid": "KOC-2025-05-0591-Q007", "sibling_text": "sludge tank regulation", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "IOPP Supplement tank information: where sludge, bilge and oil-residue tanks are recorded", "cross_family": false } ] }, { "qid": "CHE-2026-08-3874-Q010", "text": "Co2 bottle pressure rest. Explain how hydrostatic test is done?", "family": "SOLAS - Fire Safety", "subtopic": "CO2 System", "tid": "CHE-2026-08-3874", "tray": "review", "candidates": [ { "answer_id": "CO2-SYS-002", "score": 0.7353363633155823, "sibling_score": 0.7353363633155823, "answer_score": null, "sibling_qid": "KOL-2016-12-0031-Q005", "sibling_text": "hydraulic pressure testing procedure of co2 bottles wat pressure", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 maintenance, inspection, testing and survey routines", "cross_family": false }, { "answer_id": "CO2-SYS-006", "score": 0.6698766946792603, "sibling_score": 0.6698766946792603, "answer_score": null, "sibling_qid": "KOC-2025-02-1902-Q011", "sibling_text": "at what pressure co2bottle tested", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 bottles, manifolds, pilot cylinders and valve components", "cross_family": false }, { "answer_id": "AIRBTL-CORR-004", "score": 0.5494848161935806, "sibling_score": null, "answer_score": 0.5494848161935806, "sibling_qid": "", "sibling_text": "airbtl corr 04 air bottle pressure and hydrostatic testing when you test how and whether you exceed the working pressure first choice is internal visual examination through the manhole the best evidence of condition hydraulic test when you cannot enter small bottle class requires it in lieu of internal examination or after any repair to a pressure part", "sibling_family": "", "via": "answer_title", "answer_title": "AIRBTL-CORR-04 — Air bottle pressure and hydrostatic testing — when you test, how, and whether you exceed the working pressure", "cross_family": false } ] }, { "qid": "CHE-2026-08-3875-Q002", "text": "After crash manoeuvring checks?", "family": "2-Stroke - Reversing & Maneuvering", "subtopic": "Reversing Procedure", "tid": "CHE-2026-08-3875", "tray": "review", "candidates": [ { "answer_id": "REV-PROC-001", "score": 0.6551720499992371, "sibling_score": 0.6551720499992371, "answer_score": null, "sibling_qid": "KOC-2026-01-1093-Q008", "sibling_text": "crash manoeuvering", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Reversing a reversible two-stroke main engine — the principle", "cross_family": false }, { "answer_id": "ASTERN-006", "score": 0.655006468296051, "sibling_score": 0.655006468296051, "answer_score": 0.48107318580150604, "sibling_qid": "KOC-2026-05-0003-Q007", "sibling_text": "crash manoeuvering", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Emergency reversing / crash astern manoeuvring", "cross_family": false }, { "answer_id": "EICU-MAN-P01-004", "score": 0.5799017548561096, "sibling_score": 0.5799017548561096, "answer_score": null, "sibling_qid": "KOC-2024-12-1020-Q002", "sibling_text": "me c manoeuvring ccu fail actions", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Control-unit failure — CCU / ECU / EICU: can you still run the engine?", "cross_family": false } ] }, { "qid": "CHE-2026-08-3875-Q004", "text": "what is Crank web slippage, what's your actions?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft Web / Journal / Shrink Fit", "tid": "CHE-2026-08-3875", "tray": "review", "candidates": [ { "answer_id": "CRANK-217-004", "score": 0.6734945178031921, "sibling_score": 0.6734945178031921, "answer_score": 0.46649904251098634, "sibling_qid": "CHE-2026-05-0560-Q024", "sibling_text": "crankweb slip", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankshaft slippage, tell-tale marks and action if found", "cross_family": false }, { "answer_id": "CRKC-INSP-003", "score": 0.5855453014373779, "sibling_score": 0.5855453014373779, "answer_score": null, "sibling_qid": "KOL-2022-09-3568-Q002", "sibling_text": "crank case inspection details how to check slippage of web and chain slackness", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Reference checks: piston rod, pinching screws, web slippage, stuffing box, chain slackness", "cross_family": false }, { "answer_id": "CRK-DEFL-001", "score": 0.5563627481460571, "sibling_score": 0.5563627481460571, "answer_score": null, "sibling_qid": "MUM-2023-07-2738-Q003", "sibling_text": "reason for taking crank web deflection", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Purpose, timing and scope of crankshaft deflection", "cross_family": false } ] }, { "qid": "CHE-2026-08-3876-Q001", "text": "Type of vessel and engine specification(tanker)?", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "CHE-2026-08-3876", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.764624297618866, "sibling_score": 0.764624297618866, "answer_score": null, "sibling_qid": "CHE-2026-02-0247-Q001", "sibling_text": "what type of engine vessel", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "COT-01", "score": 0.7635113000869751, "sibling_score": 0.7635113000869751, "answer_score": 0.5394803583621979, "sibling_qid": "KOC-2026-04-0892-Q003", "sibling_text": "type of ship sailed tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Oil-tanker types, definitions and cargo capability", "cross_family": false }, { "answer_id": "IBC-BCH-B-004", "score": 0.7178018689155579, "sibling_score": 0.7178018689155579, "answer_score": null, "sibling_qid": "MUM-2026-03-0859-Q001", "sibling_text": "pre sea and vessel type chemical tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Certificate of Fitness and MARPOL Annex II in practice", "cross_family": false } ] }, { "qid": "CHE-2026-08-3876-Q002", "text": "⁠ calibration procedure of O2 analyser and working principle?", "family": "Cargo Ops - Tankers", "subtopic": "IG System", "tid": "CHE-2026-08-3876", "tray": "review", "candidates": [ { "answer_id": "COT-P02-08", "score": 0.76666659116745, "sibling_score": 0.76666659116745, "answer_score": 0.5916050493717193, "sibling_qid": "MUM-2026-06-3648-Q002", "sibling_text": "how to calibrate o2 analyser", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Explain the working principle, sampling arrangement, calibration and failure response of the inert-gas oxygen analyser.", "cross_family": false }, { "answer_id": "ESE-P02-002", "score": 0.6165177226066589, "sibling_score": 0.6165177226066589, "answer_score": 0.5793858170509338, "sibling_qid": "CHE-2026-04-0145-Q005S2", "sibling_text": "calibration procedure for gas detection equipment", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "ESE-P02-02. Oxygen analyser: working principle and calibration", "cross_family": true }, { "answer_id": "PSC-005", "score": 0.5910906791687012, "sibling_score": 0.5910906791687012, "answer_score": null, "sibling_qid": "KOL-2022-07-4010-Q008", "sibling_text": "you carried out calibration of o2 analyser but when psc inspector came it failed action as 2e", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "5. As second engineer: preparing for PSC and ensuring compliance", "cross_family": true } ] }, { "qid": "CHE-2026-08-3876-Q006", "text": "⁠ Fresh water generator salinometer is giving alarm? but water when tasted is not salty! What checks will you tell your electrical officer to carry out? ", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "CHE-2026-08-3876", "tray": "review", "candidates": [ { "answer_id": "EPC-P03-007", "score": 0.7214319705963135, "sibling_score": 0.7214319705963135, "answer_score": 0.5787245512008666, "sibling_qid": "NOI-2026-09-0011-Q005", "sibling_text": "salinometer not working what do to", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Explain the salinometer — working principle, circuit, probe material, and how the temperature compensation works.", "cross_family": true }, { "answer_id": "BWTEST-A-002", "score": 0.664667546749115, "sibling_score": 0.664667546749115, "answer_score": 0.5618092775344848, "sibling_qid": "MUM-2026-03-1306-Q021", "sibling_text": "frequent salinity alarm coming reasons and why", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "What does high boiler-water chloride, salinity or TDS indicate, and what action is required?", "cross_family": false }, { "answer_id": "PURIF-172-003", "score": 0.6550484895706177, "sibling_score": 0.6550484895706177, "answer_score": null, "sibling_qid": "KOC-2023-10-1820-Q002", "sibling_text": "alcap explain and run with faulty water transducer expecting for maker s manual instructions", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "ALCAP and the water transducer", "cross_family": true } ] }, { "qid": "CHE-2026-08-3876-Q007", "text": "No question from internal ", "family": "Status & Introduction", "subtopic": "", "tid": "CHE-2026-08-3876", "tray": "review", "candidates": [ { "answer_id": "CN-576-001", "score": 0.6981701254844666, "sibling_score": 0.6981701254844666, "answer_score": null, "sibling_qid": "KOC-2026-04-2100-Q008", "sibling_text": "class notation internal no questions", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What are the class notations of the vessel?", "cross_family": true }, { "answer_id": "IMO-CODES-P03-002", "score": 0.6559954285621643, "sibling_score": 0.6559954285621643, "answer_score": null, "sibling_qid": "KOC-2025-11-0726-Q009", "sibling_text": "imo sub comitee internal no question", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": true }, { "answer_id": "SOFT-START-P01-001", "score": 0.65114426612854, "sibling_score": 0.65114426612854, "answer_score": null, "sibling_qid": "KOL-2022-10-2613-Q005", "sibling_text": "soft starter i think one more question he asked all questions asked by external only", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Soft Starter — Definition, Purpose and Working", "cross_family": true } ] }, { "qid": "CHE-2026-08-3877-Q003", "text": "Difference between CO2 bottles in life raft and CO2 bottles in Fire Fighting installations?", "family": "SOLAS - Fire Safety", "subtopic": "CO2 System", "tid": "CHE-2026-08-3877", "tray": "review", "candidates": [ { "answer_id": "CO2-CALC-P01-004", "score": 0.671315610408783, "sibling_score": 0.671315610408783, "answer_score": null, "sibling_qid": "KOL-2020-10-0427-Q005", "sibling_text": "fixed fire fighting on your ship how many bottles of co2 are for e r how to calculate the number of bottles required where is it specified certificates for co2", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Where is the CO2 quantity specified, and how would you prove to a surveyor the bottle count is as per standard?", "cross_family": false }, { "answer_id": "CO2-SYS-002", "score": 0.6554027199745178, "sibling_score": 0.6554027199745178, "answer_score": null, "sibling_qid": "KOC-2025-11-0704-Q004", "sibling_text": "co2 fixed fire fighting maintenance", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 maintenance, inspection, testing and survey routines", "cross_family": false }, { "answer_id": "CO2-SYS-004", "score": 0.6521478295326233, "sibling_score": 0.6521478295326233, "answer_score": null, "sibling_qid": "KOC-2025-11-0701-Q012", "sibling_text": "fixed fire fighting onboard co2 advantages int", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fixed CO2 total-flooding system — overview, working and arrangements", "cross_family": false } ] }, { "qid": "CHE-2026-08-3877-Q009", "text": "Contents of MLC, specify MLC 2006 amendments?", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "CHE-2026-08-3877", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-007", "score": 0.5106914043426514, "sibling_score": 0.5106914043426514, "answer_score": null, "sibling_qid": "MUM-2026-02-0734-Q007", "sibling_text": "mlc 2006 detainable deficiency", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false }, { "answer_id": "MLC-WRH-B-002", "score": 0.45681798458099365, "sibling_score": 0.45681798458099365, "answer_score": null, "sibling_qid": "MUM-2022-07-0027-Q005", "sibling_text": "mlc 2006 wages rest hours", "sibling_family": "MLC", "via": "sibling", "answer_title": "Work and rest hours under MLC — the criteria, the weekly limit, the intervals", "cross_family": false }, { "answer_id": "SOX-LIMIT-001", "score": 0.42252498865127563, "sibling_score": 0.42252498865127563, "answer_score": null, "sibling_qid": "MUM-2025-07-0342-Q003", "sibling_text": "sox regulation and sox limitation 3 mlc 2006 to many cross questions", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "MARPOL Annex VI sulphur limits — the 2020 global cap", "cross_family": true } ] }, { "qid": "CHE-2026-08-3877-Q010", "text": "How will you comply with MLC as 2E?", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "CHE-2026-08-3877", "tray": "new", "candidates": [ { "answer_id": "FLAG-ST-007", "score": 0.4271978735923767, "sibling_score": 0.4271978735923767, "answer_score": 0.33022244572639464, "sibling_qid": "MUM-2024-10-0211-Q011", "sibling_text": "10 how flag state ensure mlc is complying", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Flag State enforcement of MLC compliance", "cross_family": true }, { "answer_id": "ISM-2E-A-001", "score": 0.40738821029663086, "sibling_score": 0.40738821029663086, "answer_score": null, "sibling_qid": "CHE-2026-04-0163-Q018", "sibling_text": "role of 2e in mlc and ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Roles, duties and responsibilities of a Second Engineer under ISM/SMS", "cross_family": true }, { "answer_id": "MLC-WRH-B-006", "score": 0.39499393105506897, "sibling_score": 0.39499393105506897, "answer_score": 0.2614753186702728, "sibling_qid": "MUM-2026-07-3680-Q005", "sibling_text": "what is mlc certificate under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false } ] }, { "qid": "CHE-2026-08-3878-Q001", "text": "panting & racking?", "family": "Ship Construction & Stability", "subtopic": "DEFINITION", "tid": "CHE-2026-08-3878", "tray": "new", "candidates": [ { "answer_id": "PPS-230-001", "score": 0.5962768197059631, "sibling_score": 0.5962768197059631, "answer_score": null, "sibling_qid": "MUM-2026-08-3828-Q002", "sibling_text": "panting stringer", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Panting: what it is and how the ship is protected", "cross_family": false }, { "answer_id": "PPS-230-002", "score": 0.5523326396942139, "sibling_score": 0.5523326396942139, "answer_score": null, "sibling_qid": "MUM-2022-07-0014-Q006", "sibling_text": "panting stringers", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Panting beams and panting stringers: purpose in the forward structure", "cross_family": true }, { "answer_id": "PPS-230-005", "score": 0.5348194241523743, "sibling_score": 0.5348194241523743, "answer_score": 0.3010795548558235, "sibling_qid": "KOL-2022-07-0660-Q007", "sibling_text": "panting arrangements", "sibling_family": "", "via": "sibling", "answer_title": "Panting and pounding arrangements: extent and alternative members", "cross_family": false } ] }, { "qid": "CHE-2026-08-3878-Q003", "text": "Ship 6 types of motion?", "family": "Ship Construction & Stability", "subtopic": "Ship Motions / Six Degrees of Freedom", "tid": "CHE-2026-08-3878", "tray": "new", "candidates": [ { "answer_id": "STAB-D-004", "score": 0.6329203248023987, "sibling_score": 0.6329203248023987, "answer_score": null, "sibling_qid": "KOL-2022-07-0655-Q001", "sibling_text": "types of ship movement", "sibling_family": "", "via": "sibling", "answer_title": "Ship Stability Basics - Equilibrium States, Factors, and Motions", "cross_family": false }, { "answer_id": "RES-PROP-P01-002", "score": 0.5709129571914673, "sibling_score": 0.5709129571914673, "answer_score": null, "sibling_qid": "MUM-2026-01-0696-Q001S4", "sibling_text": "different types of ship resistance", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Resistance types and methods of reducing them", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.5684888958930969, "sibling_score": 0.5684888958930969, "answer_score": null, "sibling_qid": "KOC-2026-09-2177-Q002", "sibling_text": "type a type b ships", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "CHE-2026-08-3878-Q004", "text": "⁠how Gm is high in oil tanker?", "family": "Cargo Ops - Tankers", "subtopic": "Ship Construction", "tid": "CHE-2026-08-3878", "tray": "review", "candidates": [ { "answer_id": "GM-META-005", "score": 0.657832145690918, "sibling_score": 0.657832145690918, "answer_score": null, "sibling_qid": "CHE-2026-04-0163-Q004", "sibling_text": "why gm is always high in tankers", "sibling_family": "", "via": "sibling", "answer_title": "The metacentre and metacentric height", "cross_family": false }, { "answer_id": "TKR-TYPE-001", "score": 0.5709304809570312, "sibling_score": 0.5709304809570312, "answer_score": null, "sibling_qid": "KOL-2025-06-0953-Q003", "sibling_text": "ig requirement for oil tanker vessel", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "1. Crude oil tanker vs product tanker / carrier — construction and cargo-area differences", "cross_family": false }, { "answer_id": "TNK-SAFE-BF26-003", "score": 0.564245879650116, "sibling_score": 0.564245879650116, "answer_score": null, "sibling_qid": "MUM-2026-03-0860-Q005", "sibling_text": "how many zone in oil tanker", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What safeties, including electrical safeties and Ex ratings, are provided on the deck of a tanker?", "cross_family": false } ] }, { "qid": "CHE-2026-08-3878-Q007", "text": "⁠foam certificate?", "family": "SOLAS - Fire Safety", "subtopic": "Foam System / Monitor", "tid": "CHE-2026-08-3878", "tray": "review", "candidates": [ { "answer_id": "FOAM-SYS-P04-003", "score": 0.6584861874580383, "sibling_score": 0.6584861874580383, "answer_score": null, "sibling_qid": "KOL-2018-12-0238-Q032", "sibling_text": "foam generation type of foam and certificate s present onboard plenty cross q s", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "2. How mechanical foam is produced", "cross_family": false }, { "answer_id": "FOAM-SYS-P04-002", "score": 0.5780064463615417, "sibling_score": 0.5780064463615417, "answer_score": null, "sibling_qid": "KOC-2025-09-0661-Q002", "sibling_text": "fixed foam drawing working propotioner working and maintaince foam nozzle diagram foam sample certificate contents and frequency of sample testing", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "1. Foam proportioner — how it works", "cross_family": false }, { "answer_id": "CRANE-ER-001", "score": 0.5635732412338257, "sibling_score": 0.5635732412338257, "answer_score": null, "sibling_qid": "KOC-2025-05-1914-Q007", "sibling_text": "certificate", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Pre-use safety, maintenance & certification checks on the ER crane", "cross_family": true } ] }, { "qid": "CHE-2026-08-3879-Q001", "text": "Types of vessel sailed, types of engine sailed?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "CHE-2026-08-3879", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8428476452827454, "sibling_score": 0.8428476452827454, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.7779064178466797, "sibling_score": 0.7779064178466797, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q001", "sibling_text": "type of ship sailed and engines details", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.7482205033302307, "sibling_score": 0.7482205033302307, "answer_score": null, "sibling_qid": "CHE-2026-09-3938-Q001", "sibling_text": "types of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false } ] }, { "qid": "CHE-2026-08-3879-Q002", "text": "explain all specification?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "CHE-2026-08-3879", "tray": "new", "candidates": [ { "answer_id": "A6-NSEC-005", "score": 0.5448706150054932, "sibling_score": 0.5448706150054932, "answer_score": null, "sibling_qid": "MUM-2023-12-0153-Q008", "sibling_text": "seemp explain full", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP — Part I, II & III", "cross_family": true }, { "answer_id": "BWM-D1D2-P02-002", "score": 0.5387287139892578, "sibling_score": 0.5387287139892578, "answer_score": null, "sibling_qid": "KOC-2023-10-0230-Q004", "sibling_text": "bwms all standard explain", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "BWM Section D standards — D-1 to D-5 overview and how they differ", "cross_family": true }, { "answer_id": "VFD-INV-P01-002", "score": 0.5333883166313171, "sibling_score": 0.5333883166313171, "answer_score": null, "sibling_qid": "KOC-2025-01-1477-Q003", "sibling_text": "vfd explain where all used specify", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Where is a VFD used onboard, and why?", "cross_family": true } ] }, { "qid": "CHE-2026-08-3879-Q003", "text": "What you think about ME engine?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "CHE-2026-08-3879", "tray": "new", "candidates": [ { "answer_id": "ETP-344-P03-010", "score": 0.5787926316261292, "sibling_score": 0.5787926316261292, "answer_score": null, "sibling_qid": "CHE-2025-08-0426-Q013", "sibling_text": "function test on me engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Function tests on the main engine (ME electronic engine)", "cross_family": true }, { "answer_id": "MCC-MEB-P02-003", "score": 0.5783066153526306, "sibling_score": 0.5783066153526306, "answer_score": null, "sibling_qid": "KOL-2021-12-1651-Q003", "sibling_text": "1 what is me engine why me", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Conventional MC / MC-C versus electronic ME — the practical operating differences", "cross_family": true }, { "answer_id": "ETP-344-P03-001", "score": 0.5684191584587097, "sibling_score": 0.5684191584587097, "answer_score": null, "sibling_qid": "KOC-2026-05-0045-Q002", "sibling_text": "whether done me engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false } ] }, { "qid": "CHE-2026-08-3879-Q004", "text": "ME AND MCC Difference?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "MC-C vs MEB Engine", "tid": "CHE-2026-08-3879", "tray": "review", "candidates": [ { "answer_id": "MEB-MEC-P03-001", "score": 0.7151939272880554, "sibling_score": 0.7151939272880554, "answer_score": 0.4227950036525726, "sibling_qid": "KOC-2025-10-1055-Q002", "sibling_text": "mcc mec difference", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "ME-B vs ME-C — the core difference", "cross_family": false }, { "answer_id": "EGTP-P02-005", "score": 0.703543484210968, "sibling_score": 0.703543484210968, "answer_score": 0.3480359405279159, "sibling_qid": "MUM-2026-09-3978-Q001", "sibling_text": "mc mcc me b and me c difference", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "MC / MC-C / ME-C and Electronically Controlled Engines", "cross_family": false }, { "answer_id": "MCC-MEB-P01-001", "score": 0.689915120601654, "sibling_score": 0.689915120601654, "answer_score": null, "sibling_qid": "KOL-2020-01-1512-Q003", "sibling_text": "difference between mc and mcc and me", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "MC-C (\"Compact\") engine — design and the main constructional differences from MC", "cross_family": false } ] }, { "qid": "CHE-2026-08-3879-Q006", "text": "explain about VTG AND X question?", "family": "Turbocharger", "subtopic": "Turbocharger Construction & Surging", "tid": "CHE-2026-08-3879", "tray": "new", "candidates": [ { "answer_id": "VTA-TC-001", "score": 0.5655761957168579, "sibling_score": 0.5655761957168579, "answer_score": 0.26235459148883816, "sibling_qid": "KOL-2025-12-2030-Q002", "sibling_text": "what do you understand by vgt little bit xx", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "What VTA / VGT is and how it works", "cross_family": false }, { "answer_id": "TCS-059-P04-022", "score": 0.47811633348464966, "sibling_score": 0.47811633348464966, "answer_score": 0.2927064001560211, "sibling_qid": "MUM-2023-05-1048-Q009", "sibling_text": "vti and vtg", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "VTI and VTG", "cross_family": false }, { "answer_id": "TC-CS-P01-004", "score": 0.426754891872406, "sibling_score": 0.426754891872406, "answer_score": 0.22773490250110626, "sibling_qid": "KOC-2024-10-0929-Q008", "sibling_text": "t c advancement explain vgt a r ratio", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "D·Variable geometry turbocharging (VGT / VTA) and the A/R ratio", "cross_family": false } ] }, { "qid": "CHE-2026-08-3879-Q007", "text": "Explain about exhaust gas recirculation method and so many x questions?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "EGCS / Scrubber", "tid": "CHE-2026-08-3879", "tray": "new", "candidates": [ { "answer_id": "A6-NSEC-003", "score": 0.6468801498413086, "sibling_score": 0.6468801498413086, "answer_score": 0.48044267296791077, "sibling_qid": "KOL-2018-10-1423-Q005", "sibling_text": "pre combution nox control method plz don t tell him miller system he didn t knw about that i said zero sac vol then no how can it reduce egr he accepted dehumification accepted then asked how mixing took place", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "NOx — formation, limits & reduction (SCR / EGR)", "cross_family": false }, { "answer_id": "EXHV-080-BF37-001", "score": 0.6314046382904053, "sibling_score": 0.6314046382904053, "answer_score": null, "sibling_qid": "KOC-2026-08-2154-Q005", "sibling_text": "exhaust gas recirculation", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "What is variable exhaust valve closing (VEC)? Components and advantages.", "cross_family": true }, { "answer_id": "AV6-P03-01", "score": 0.6247167587280273, "sibling_score": 0.6247167587280273, "answer_score": 0.5223484456539154, "sibling_qid": "CHE-2026-05-0533-Q006", "sibling_text": "explain about egr", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "EGR for NOx control — principle, working, operation and comparison with SCR", "cross_family": false } ] }, { "qid": "CHE-2026-08-3879-Q008", "text": "what is function of scrubber tower in main engine system, what you achieved?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "Exhaust Gas Cleaning / Scrubber", "tid": "CHE-2026-08-3879", "tray": "new", "candidates": [ { "answer_id": "EGCS-393-002", "score": 0.6406129598617554, "sibling_score": 0.6406129598617554, "answer_score": null, "sibling_qid": "KOL-2021-10-0556-Q008", "sibling_text": "scrubber tower what is present and how it works", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "EGCS types, components and working — open, closed and hybrid loop", "cross_family": false }, { "answer_id": "SOX-LIMIT-003", "score": 0.6346089243888855, "sibling_score": 0.6346089243888855, "answer_score": 0.427298167347908, "sibling_qid": "KOL-2018-01-0139-Q002", "sibling_text": "new advancement in scrubber tower", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Controlling SOx onboard — compliant fuel, scrubbers, alternatives", "cross_family": false }, { "answer_id": "COT-P02-05", "score": 0.6296745538711548, "sibling_score": 0.6296745538711548, "answer_score": 0.4750548660755157, "sibling_qid": "CHE-2026-02-0111-Q001S6", "sibling_text": "construction of scrubber tower", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Draw and explain the inert-gas scrubber tower, including its internal parts, cooling/cleaning action, water supply and safety monitoring.", "cross_family": false } ] }, { "qid": "CHE-2026-08-3879-Q009", "text": "MIP AND MEP Definition and power calculation and power card purpose and x question?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Indicator Card / Power Card", "tid": "CHE-2026-08-3879", "tray": "review", "candidates": [ { "answer_id": "MIP-264-002", "score": 0.720472514629364, "sibling_score": 0.720472514629364, "answer_score": 0.4529258668422699, "sibling_qid": "KOL-2026-05-4244-Q009", "sibling_text": "how will you get the value of mep from power card", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Calculate MIP from the indicator / power card (spring constant, unit conversion)", "cross_family": false }, { "answer_id": "IND-CARD-B-003", "score": 0.6718347072601318, "sibling_score": 0.6718347072601318, "answer_score": 0.4389237195253372, "sibling_qid": "KOC-2024-03-1836-Q003", "sibling_text": "power calculation from power card", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Power calculation from the indicator / power card", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.6473917365074158, "sibling_score": 0.6473917365074158, "answer_score": null, "sibling_qid": "MUM-2025-09-2846-Q007", "sibling_text": "power calculation normal plan wala how you get pi what is mep", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false } ] }, { "qid": "CHE-2026-08-3879-Q011", "text": "VRCS explanation?", "family": "Automation & Controls", "subtopic": "PID / Two-Step / Ratio Control", "tid": "CHE-2026-08-3879", "tray": "new", "candidates": [ { "answer_id": "VTA-TC-001", "score": 0.4076465964317322, "sibling_score": 0.4076465964317322, "answer_score": null, "sibling_qid": "KOL-2026-04-2057-Q002", "sibling_text": "vgt explain", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "What VTA / VGT is and how it works", "cross_family": true }, { "answer_id": "NPDES-330-001", "score": 0.40034598112106323, "sibling_score": 0.40034598112106323, "answer_score": null, "sibling_qid": "KOC-2023-11-0242-Q002", "sibling_text": "vgp explain in detail", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Explain VGP / General Vessel Permit / NPDES and its purpose under US vessel-discharge compliance", "cross_family": true }, { "answer_id": "VOC-MGT-001", "score": 0.387132465839386, "sibling_score": 0.387132465839386, "answer_score": 0.25073663890361786, "sibling_qid": "CHE-2026-08-3874-Q004", "sibling_text": "voc explain", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is VOC (volatile organic compound)?", "cross_family": true } ] }, { "qid": "CHE-2026-08-3880-Q001", "text": "LO grade? ", "family": "Lube Oil System", "subtopic": "", "tid": "CHE-2026-08-3880", "tray": "new", "candidates": [ { "answer_id": "OWS-ORB-006", "score": 0.4646962881088257, "sibling_score": 0.4646962881088257, "answer_score": null, "sibling_qid": "MUM-2026-03-0808-Q002", "sibling_text": "orb entry for lo", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "6. Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": true }, { "answer_id": "LO-PR-ALM-001", "score": 0.46006065607070923, "sibling_score": 0.46006065607070923, "answer_score": null, "sibling_qid": "MUM-2024-12-2783-Q009", "sibling_text": "me lo pr low", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main engine low lubricating-oil pressure — alarm, slowdown or trip: your actions as 2/E, and is the alarm true or false?", "cross_family": true }, { "answer_id": "CII-RATE-P02-002", "score": 0.4429124593734741, "sibling_score": 0.4429124593734741, "answer_score": null, "sibling_qid": "KOC-2024-01-0278-Q019", "sibling_text": "cii if your grade e what is your response", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "2. Corrective action when the ship is rated D or E", "cross_family": true } ] }, { "qid": "CHE-2026-08-3880-Q002", "text": "FO grades?", "family": "Fuel Oil System", "subtopic": "", "tid": "CHE-2026-08-3880", "tray": "new", "candidates": [ { "answer_id": "CII-CALC-P03-001", "score": 0.5016802549362183, "sibling_score": 0.5016802549362183, "answer_score": null, "sibling_qid": "KOL-2026-05-0016-Q005", "sibling_text": "cii rating all details grades attain and required cii formulae definitions where u find attain and required cii", "sibling_family": "", "via": "sibling", "answer_title": "Calculating attained & required CII — formula, unit, reduction factor, measurements", "cross_family": false }, { "answer_id": "IMODCS-001", "score": 0.5009969472885132, "sibling_score": 0.5009969472885132, "answer_score": null, "sibling_qid": "MUM-2024-04-0172-Q003", "sibling_text": "imo dcs and gradings", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is the IMO DCS? What data is collected, over what period, and what are the “gradings”?", "cross_family": true }, { "answer_id": "AV6-P05-01", "score": 0.49738359451293945, "sibling_score": 0.49738359451293945, "answer_score": null, "sibling_qid": "MUM-2025-12-0648-Q010", "sibling_text": "explain seemp part 2 and grade system", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP Part II — IMO DCS plan and contents", "cross_family": true } ] }, { "qid": "CHE-2026-08-3880-Q003", "text": "Back pr valve for multistage compressor advantage ?", "family": "Refrigeration & AC", "subtopic": "Back Pressure Valve", "tid": "CHE-2026-08-3880", "tray": "new", "candidates": [ { "answer_id": "BPV-315-001", "score": 0.6186813712120056, "sibling_score": 0.6186813712120056, "answer_score": null, "sibling_qid": "KOL-2021-12-1648-Q008", "sibling_text": "back pr valve in reefer", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Back pressure valve — purpose, location and operation", "cross_family": false }, { "answer_id": "AC-STAGE-002", "score": 0.5937648415565491, "sibling_score": 0.5937648415565491, "answer_score": null, "sibling_qid": "KOL-2021-06-1594-Q004", "sibling_text": "intermediate pr in compressor in 2nd n 3rd stage", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Intermediate pressure / pressure ratio for minimum work", "cross_family": true }, { "answer_id": "BPV-315-005", "score": 0.5872828960418701, "sibling_score": 0.5872828960418701, "answer_score": null, "sibling_qid": "KOL-2026-02-1830-Q004", "sibling_text": "ref equalizer line back pressure valve", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Equalising line and the back pressure valve", "cross_family": false } ] }, { "qid": "CHE-2026-08-3880-Q005", "text": "Rudder survey?", "family": "Shafting, Propeller & Rudder", "subtopic": "", "tid": "CHE-2026-08-3880", "tray": "new", "candidates": [ { "answer_id": "CSAS-SURV-001", "score": 0.5301742553710938, "sibling_score": 0.5301742553710938, "answer_score": null, "sibling_qid": "KOL-2025-12-1152-Q003", "sibling_text": "class survey", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Certificate of class — what it is, who issues it, what class looks after", "cross_family": true }, { "answer_id": "CSAS-SURV-002", "score": 0.5298122763633728, "sibling_score": 0.5298122763633728, "answer_score": null, "sibling_qid": "KOC-2025-12-0752-Q003", "sibling_text": "class survey", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Main types of class surveys on a cargo ship", "cross_family": true }, { "answer_id": "OWS-ORB-003", "score": 0.5020049810409546, "sibling_score": 0.5020049810409546, "answer_score": null, "sibling_qid": "KOL-2019-02-3214-Q003", "sibling_text": "ows survey", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "3. OWS checks for survey / port testing as 2/E", "cross_family": true } ] }, { "qid": "CHE-2026-08-3880-Q007", "text": "Connecting rod inspection?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Connecting Rod & Bolts", "tid": "CHE-2026-08-3880", "tray": "review", "candidates": [ { "answer_id": "AECR-651-001", "score": 0.8286935687065125, "sibling_score": 0.8286935687065125, "answer_score": 0.630075553059578, "sibling_qid": "MUM-2026-07-3673-Q003", "sibling_text": "connecting rod check", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What checks do you carry out on the connecting rod of an AE / DG — inspection, overhaul checks and the trueness check?", "cross_family": false }, { "answer_id": "CRB-001", "score": 0.82818204164505, "sibling_score": 0.82818204164505, "answer_score": 0.6020414680242538, "sibling_qid": "KOL-2017-02-3036-Q005", "sibling_text": "connecting rod check", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What checks are carried out on the connecting rod at decarbonisation? Explain the ovality and trueness checks — how many readings, at which positions, with what instrument, and the permissible limit.", "cross_family": false }, { "answer_id": "AECR-651-002", "score": 0.8108164668083191, "sibling_score": 0.8108164668083191, "answer_score": null, "sibling_qid": "MUM-2026-04-2961-Q012", "sibling_text": "connecting rod checks connecting rod ovality", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you take the ovality of the AE big end in a 4-stroke, and what are the ovality limits and maximum value?", "cross_family": false } ] }, { "qid": "CHE-2026-08-3880-Q009", "text": "Power calculation, SFOC, MIP, MEP ?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "SFOC", "tid": "CHE-2026-08-3880", "tray": "review", "candidates": [ { "answer_id": "PERF-470-003", "score": 0.6563736200332642, "sibling_score": 0.6563736200332642, "answer_score": null, "sibling_qid": "MUM-2026-06-3353-Q011", "sibling_text": "me power calculations", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main-engine power calculation — formulae and cross-checks", "cross_family": false }, { "answer_id": "MIP-264-002", "score": 0.637708306312561, "sibling_score": 0.637708306312561, "answer_score": 0.4185716316103935, "sibling_qid": "KOC-2022-07-2031-Q004", "sibling_text": "power calculation mep mip unit conversions unit of spring scale constant k", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Calculate MIP from the indicator / power card (spring constant, unit conversion)", "cross_family": false }, { "answer_id": "IND-CARD-B-003", "score": 0.6343494057655334, "sibling_score": 0.6343494057655334, "answer_score": 0.4301933079957962, "sibling_qid": "MUM-2026-05-3248-Q005", "sibling_text": "power calculation normal plan how you get pi what is mep", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Power calculation from the indicator / power card", "cross_family": false } ] }, { "qid": "CHE-2026-08-3881-Q003", "text": "why Ph valve is up to 14 , why not 15,16 etc ?", "family": "Boilers - Safety & Survey", "subtopic": "Water Test (Chloride / pH / Phosphate)", "tid": "CHE-2026-08-3881", "tray": "new", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-002", "score": 0.45470815896987915, "sibling_score": 0.45470815896987915, "answer_score": null, "sibling_qid": "MUM-2022-07-2694-Q001", "sibling_text": "accumulation pr test if safety valve lifts then y u want that it should not go beyond 10 like for 10 bar if it lifts at 3 of 10 bar then y it should go beyond that upto 10", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Acceptance limits and durations — the accumulation limit, the maximum test periods, and the action if the limit is exceeded", "cross_family": false }, { "answer_id": "BWTEST-C-001", "score": 0.44607013463974, "sibling_score": 0.44607013463974, "answer_score": 0.36842990219593047, "sibling_qid": "KOC-2024-09-1868-Q004", "sibling_text": "boiler water treatment what is ph and its value in boiler", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "pH / acidity control — why pH is held, and what acidic or high-pH water means", "cross_family": false }, { "answer_id": "BWT-B-001", "score": 0.4336598515510559, "sibling_score": 0.4336598515510559, "answer_score": 0.3285039752721786, "sibling_qid": "KOL-2017-01-1265-Q004", "sibling_text": "p m and t alkalinity values", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Why are P, T and M alkalinity tests done in boiler water, and how are the results read?", "cross_family": false } ] }, { "qid": "CHE-2026-08-3881-Q005", "text": "tail shaft stress?", "family": "Drydock & Underwater Surveys", "subtopic": "Stern Tube / Tail Shaft", "tid": "CHE-2026-08-3881", "tray": "review", "candidates": [ { "answer_id": "STS-P02-004", "score": 0.7664645910263062, "sibling_score": 0.7664645910263062, "answer_score": 0.4951413482427597, "sibling_qid": "CHE-2026-09-3909-Q004", "sibling_text": "tail shaft stress", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "STS-P02-04 - Tail shaft design, bearing materials and bending support", "cross_family": false }, { "answer_id": "SPR-STERN-008", "score": 0.7593703866004944, "sibling_score": 0.7593703866004944, "answer_score": 0.5664630144834518, "sibling_qid": "CHE-2026-09-3903-Q001", "sibling_text": "stress acting on tail shaft", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Tail/intermediate shaft material, stresses, fitted bolts & arrangement", "cross_family": false }, { "answer_id": "STS-P02-005", "score": 0.6126734614372253, "sibling_score": 0.6126734614372253, "answer_score": null, "sibling_qid": "MUM-2026-05-3307-Q009", "sibling_text": "tail end shaft which method is used", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "STS-P02-05 - Tail shaft removal, drydock inspection and pre-flooding checks", "cross_family": false } ] }, { "qid": "CHE-2026-08-3882-Q003", "text": "⁠ Complete ME engine working?", "family": "2-Stroke - Operations & Casualty", "subtopic": "", "tid": "CHE-2026-08-3882", "tray": "new", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.6365396976470947, "sibling_score": 0.6365396976470947, "answer_score": null, "sibling_qid": "KOC-2026-05-0045-Q002", "sibling_text": "whether done me engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": true }, { "answer_id": "ENG-NOM-006", "score": 0.6067311763763428, "sibling_score": 0.6067311763763428, "answer_score": null, "sibling_qid": "CHE-2026-05-0585-Q001", "sibling_text": "main engine specification complete", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Short-form asks: SMC-C, LMC, and ME vs MC quickly", "cross_family": true }, { "answer_id": "MCC-MEB-P02-003", "score": 0.5799071788787842, "sibling_score": 0.5799071788787842, "answer_score": null, "sibling_qid": "MUM-2024-07-1084-Q004", "sibling_text": "me engine tha", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Conventional MC / MC-C versus electronic ME — the practical operating differences", "cross_family": true } ] }, { "qid": "CHE-2026-08-3882-Q007", "text": "⁠ Different types of safety valve and hauling procedure?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "CHE-2026-08-3882", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.6609448790550232, "sibling_score": 0.6609448790550232, "answer_score": null, "sibling_qid": "MUM-2026-07-3737-Q004", "sibling_text": "boiler type safety valve type lift of safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACRV-005", "score": 0.6419847011566162, "sibling_score": 0.6419847011566162, "answer_score": 0.4776165872812271, "sibling_qid": "MUM-2025-11-1220-Q003", "sibling_text": "relief valve and safety valve diff blowdown", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": false }, { "answer_id": "SCAV-323-P02-008", "score": 0.4789694160223007, "sibling_score": null, "answer_score": 0.4789694160223007, "sibling_qid": "", "sibling_text": "safeties and relief arrangements for the scavenge space hazard oily deposits blow past air scavenge fire explosion relief valve door fitted per the maker s design scavenge air receiver or cylinder section spring loaded cup spring lifts at permitted overpressure self closing to prevent air re entry", "sibling_family": "", "via": "answer_title", "answer_title": "Safeties and relief arrangements for the scavenge space", "cross_family": false } ] }, { "qid": "CHE-2026-08-3883-Q003", "text": "SOLAS regulation for Oversize lifejacket?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "LIFE JACKET", "tid": "CHE-2026-08-3883", "tray": "review", "candidates": [ { "answer_id": "LSA-LB-A-001", "score": 0.7952066659927368, "sibling_score": 0.7952066659927368, "answer_score": 0.4241812199354172, "sibling_qid": "CHE-2026-04-0154-Q002", "sibling_text": "solas regulation for oversize lifejacket", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "SOLAS requirements for lifeboats", "cross_family": false }, { "answer_id": "LRHR-A-001", "score": 0.6009678244590759, "sibling_score": 0.6009678244590759, "answer_score": null, "sibling_qid": "MUM-2025-09-0457-Q004", "sibling_text": "life raft solas regulation", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "SOLAS requirement for liferafts on a cargo ship — number and total capacity", "cross_family": false }, { "answer_id": "LRHR-B-001", "score": 0.5989872217178345, "sibling_score": 0.5989872217178345, "answer_score": null, "sibling_qid": "KOC-2025-03-0564-Q003", "sibling_text": "liferaft solas regulation", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What does SOLAS require for liferafts on a cargo ship — how many, what capacity, and the forward raft?", "cross_family": false } ] }, { "qid": "CHE-2026-08-3883-Q004", "text": "Co2 empty bottle regulations?", "family": "SOLAS - Fire Safety", "subtopic": "CO2 System", "tid": "CHE-2026-08-3883", "tray": "review", "candidates": [ { "answer_id": "CO2-SYS-006", "score": 0.8106667399406433, "sibling_score": 0.8106667399406433, "answer_score": 0.46908797025680543, "sibling_qid": "CHE-2025-08-0054-Q003", "sibling_text": "co2 empty bottle regulation", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 bottles, manifolds, pilot cylinders and valve components", "cross_family": false }, { "answer_id": "CO2-CALC-P01-002", "score": 0.6819393038749695, "sibling_score": 0.6819393038749695, "answer_score": null, "sibling_qid": "MUM-2026-06-3413-Q008", "sibling_text": "co2 bottle filling requirement", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "How is the required CO2 quantity and number of bottles calculated for an engine-room total-flooding system?", "cross_family": false }, { "answer_id": "CO2-SYS-002", "score": 0.6655751466751099, "sibling_score": 0.6655751466751099, "answer_score": null, "sibling_qid": "KOC-2025-07-1922-Q005", "sibling_text": "co2 bottle pressure testing requirement comes from which regulation which code", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 maintenance, inspection, testing and survey routines", "cross_family": false } ] }, { "qid": "CHE-2026-08-3884-Q002", "text": "Torsional vibration damper and cross question?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Vibration / Balancing", "tid": "CHE-2026-08-3884", "tray": "review", "candidates": [ { "answer_id": "VIB-BAL-B-001", "score": 0.7404555082321167, "sibling_score": 0.7404555082321167, "answer_score": 0.4467364549636841, "sibling_qid": "MUM-2026-07-3794-Q010", "sibling_text": "tortional vibration damper and material and cross", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Torsional / viscous vibration damper: working and condition checks", "cross_family": false }, { "answer_id": "VIB-BAL-B-003", "score": 0.6721121668815613, "sibling_score": 0.6721121668815613, "answer_score": null, "sibling_qid": "CHE-2025-08-0283-Q015", "sibling_text": "cross vibration i asked him what vibration axial or torsional then he said torsional", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Torsional vibration: what it is, what causes it, how it is controlled", "cross_family": false }, { "answer_id": "VIB-BAL-A-006", "score": 0.47977056503295895, "sibling_score": null, "answer_score": 0.47977056503295895, "sibling_qid": "", "sibling_text": "vib a 06 types of vibration dampers and compensators and where they are located torsional vibration damper detuner crankshaft free fore end viscous silicone damper spring e g geislinger damper or tuning wheel detuner controls torsional vibration of the crankshaft and shafting construction detail dampers volume axial vibration damper crankshaft fore end oil damped piston collar and split housing fo", "sibling_family": "", "via": "answer_title", "answer_title": "VIB-A-06 — Types of vibration dampers and compensators, and where they are located", "cross_family": false } ] }, { "qid": "CHE-2026-08-3884-Q003", "text": "why cross head prone to failure?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Crosshead Bearing", "tid": "CHE-2026-08-3884", "tray": "new", "candidates": [ { "answer_id": "XHEAD-303-008", "score": 0.5574886202812195, "sibling_score": 0.5574886202812195, "answer_score": null, "sibling_qid": "MUM-2026-06-3448-Q006", "sibling_text": "what will happen if crosses head guide is worn off", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Effects and signs of crosshead guide wear or damage, and operational action", "cross_family": false }, { "answer_id": "XHEAD-303-004", "score": 0.5136257410049438, "sibling_score": 0.5136257410049438, "answer_score": null, "sibling_qid": "KOL-2020-11-1563-Q012", "sibling_text": "stresses on crosshead", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Stresses acting on the crosshead and its components", "cross_family": false }, { "answer_id": "XHD-BRG-B-008", "score": 0.5132104158401489, "sibling_score": 0.5132104158401489, "answer_score": null, "sibling_qid": "KOL-2022-03-1668-Q009", "sibling_text": "development in crosshead", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead bearing construction, design refinements and developments", "cross_family": false } ] }, { "qid": "CHE-2026-08-3884-Q004", "text": "honing and cross question?", "family": "2-Stroke - Liner & Piston Overhaul", "subtopic": "", "tid": "CHE-2026-08-3884", "tray": "new", "candidates": [ { "answer_id": "CYL-LINER-P02-001", "score": 0.5519167184829712, "sibling_score": 0.5519167184829712, "answer_score": 0.341403067111969, "sibling_qid": "CHE-2026-04-0507-Q006", "sibling_text": "honing and it purpose 2 more questions don t remember", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L1 · T044-PART_02-G001High", "cross_family": true }, { "answer_id": "A6-NSEC-005", "score": 0.5394843816757202, "sibling_score": 0.5394843816757202, "answer_score": null, "sibling_qid": "MUM-2026-04-1007-Q017", "sibling_text": "and cross question", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "SEEMP — Part I, II & III", "cross_family": true }, { "answer_id": "VIT-MECH-B-002", "score": 0.5323827266693115, "sibling_score": 0.5323827266693115, "answer_score": null, "sibling_qid": "CHE-2026-03-0124-Q012", "sibling_text": "fq setting and cross questions by both of them", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How VIT is adjusted and set — timing and fuel-quality (FQS) interactions", "cross_family": true } ] }, { "qid": "CHE-2026-08-3884-Q005", "text": "stress in tail shaft?", "family": "Shafting, Propeller & Rudder", "subtopic": "Stern Tube / Shafting / Propeller / Rudder", "tid": "CHE-2026-08-3884", "tray": "review", "candidates": [ { "answer_id": "SPR-STERN-008", "score": 0.7402400374412537, "sibling_score": 0.7402400374412537, "answer_score": 0.5515128433704376, "sibling_qid": "CHE-2026-08-3889-Q002", "sibling_text": "stresses acting on tail shaft", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Tail/intermediate shaft material, stresses, fitted bolts & arrangement", "cross_family": false }, { "answer_id": "STS-P02-004", "score": 0.6998708248138428, "sibling_score": 0.6998708248138428, "answer_score": 0.48583655953407284, "sibling_qid": "CHE-2026-09-3909-Q004", "sibling_text": "tail shaft stress", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "STS-P02-04 - Tail shaft design, bearing materials and bending support", "cross_family": true }, { "answer_id": "STT-BRG-001", "score": 0.5667976140975952, "sibling_score": 0.5667976140975952, "answer_score": null, "sibling_qid": "KOC-2026-05-0037-Q001", "sibling_text": "tail end shaft removed what checks", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "8. Tail shaft — survey, condition monitoring, wet test, removal checks and propeller overhang", "cross_family": false } ] }, { "qid": "CHE-2026-08-3885-Q001", "text": "Flooding & bilging? what will happen to GM? & Cross ques", "family": "Ship Construction & Stability", "subtopic": "Floodable Length / Permeability", "tid": "CHE-2026-08-3885", "tray": "new", "candidates": [ { "answer_id": "BK-004", "score": 0.4845530390739441, "sibling_score": 0.4845530390739441, "answer_score": null, "sibling_qid": "CHE-2026-04-0169-Q008S2", "sibling_text": "how bilge keel is fitted and what arrangement is given if the bilge keel get rupture or tore as it fitted on the ship hull it may damage the hull know many cross questions", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "How is a bilge keel attached to the hull, and how is hull cracking or rupture controlled?", "cross_family": false }, { "answer_id": "DDHSC-004", "score": 0.467716246843338, "sibling_score": 0.467716246843338, "answer_score": null, "sibling_qid": "KOL-2019-11-3287-Q002", "sibling_text": "checks when flooding after dd", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "What checks are carried out after docking, and what are the first checks once the ship is out of dock?", "cross_family": true }, { "answer_id": "CO2-SYS-002", "score": 0.4619384706020355, "sibling_score": 0.4619384706020355, "answer_score": null, "sibling_qid": "KOL-2020-10-0432-Q005", "sibling_text": "total flooding system and maintenance and cross question", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 maintenance, inspection, testing and survey routines", "cross_family": true } ] }, { "qid": "CHE-2026-08-3885-Q004", "text": "Why centrifugal pump in main fire line?", "family": "Pumps - Centrifugal & PD", "subtopic": "Centrifugal Pump", "tid": "CHE-2026-08-3885", "tray": "new", "candidates": [ { "answer_id": "PCD-P01-02", "score": 0.6154918074607849, "sibling_score": 0.6154918074607849, "answer_score": null, "sibling_qid": "MUM-2026-06-3505-Q006", "sibling_text": "type of pump in ows why not centrifugal", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Types and classification of pumps on board — and which pump for which duty", "cross_family": false }, { "answer_id": "PCD-P04-01", "score": 0.569184422492981, "sibling_score": 0.569184422492981, "answer_score": null, "sibling_qid": "MUM-2026-07-3782-Q009", "sibling_text": "bilge pump type why centrifugal pump not used", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "01. Bilge pump — type, why not centrifugal, and the suction valve chest", "cross_family": false }, { "answer_id": "PCD-P03-01", "score": 0.5684691667556763, "sibling_score": 0.5684691667556763, "answer_score": null, "sibling_qid": "MUM-2026-05-3078-Q006", "sibling_text": "overhaul of centrifugal pump checks on that", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Centrifugal pump overhaul — procedure, checks, clearances and survey evidence", "cross_family": false } ] }, { "qid": "CHE-2026-08-3885-Q005", "text": "Purpose of nozzle in CO2 system?", "family": "SOLAS - Fire Safety", "subtopic": "CO2 System", "tid": "CHE-2026-08-3885", "tray": "new", "candidates": [ { "answer_id": "CO2-SYS-007", "score": 0.6395842432975769, "sibling_score": 0.6395842432975769, "answer_score": 0.40299550741910933, "sibling_qid": "KOL-2017-01-0049-Q004", "sibling_text": "co2 firefighting function of nozzle", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 piping, nozzles, line arrangement and pressure testing", "cross_family": false }, { "answer_id": "CO2-SYS-002", "score": 0.6249510645866394, "sibling_score": 0.6249510645866394, "answer_score": null, "sibling_qid": "MUM-2024-01-0157-Q006", "sibling_text": "co2 system how to check nozzles are clear", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 maintenance, inspection, testing and survey routines", "cross_family": false }, { "answer_id": "CO2-SYS-006", "score": 0.6037057042121887, "sibling_score": 0.6037057042121887, "answer_score": 0.4027176916599274, "sibling_qid": "KOL-2022-03-0610-Q004", "sibling_text": "how co2 comes out of bottle to manifold", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 bottles, manifolds, pilot cylinders and valve components", "cross_family": false } ] }, { "qid": "CHE-2026-08-3885-Q008", "text": "Earth fault meter & earth lamp explain?", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator Protection", "tid": "CHE-2026-08-3885", "tray": "review", "candidates": [ { "answer_id": "EF-DET-P01-002", "score": 0.7159292101860046, "sibling_score": 0.7159292101860046, "answer_score": 0.5307146847248078, "sibling_qid": "KOC-2025-08-1563-Q016", "sibling_text": "earth fault lamp", "sibling_family": "", "via": "sibling", "answer_title": "How an earth fault is detected and indicated on board", "cross_family": false }, { "answer_id": "EF-DET-P01-001", "score": 0.7029293775558472, "sibling_score": 0.7029293775558472, "answer_score": null, "sibling_qid": "CHE-2026-04-0369-Q007", "sibling_text": "how many earth fault monitors how many lamps why lamps are connected through transformer where the both end of transformer primary winding is connected what indication of lamps confirms the earth fault how much volt of the bulb why", "sibling_family": "", "via": "sibling", "answer_title": "Earth fault / earth leakage — and how it differs from short circuit and open circuit", "cross_family": false }, { "answer_id": "EF-SHAFT-ERES-P05-001", "score": 0.7015429139137268, "sibling_score": 0.7015429139137268, "answer_score": 0.5308850169181824, "sibling_qid": "MUM-2026-05-3348-Q002", "sibling_text": "earth fault indicator lamps working", "sibling_family": "Electrical - Distribution & Earthing", "via": "sibling", "answer_title": "Earth fault detection, indication and location", "cross_family": true } ] }, { "qid": "CHE-2026-08-3886-Q002", "text": "Aux engine lub oil foaming reason?", "family": "Heat Exchangers & Coolers", "subtopic": "JCW System", "tid": "CHE-2026-08-3886", "tray": "new", "candidates": [ { "answer_id": "AE-LOLOSS-003", "score": 0.6213217973709106, "sibling_score": 0.6213217973709106, "answer_score": null, "sibling_qid": "MUM-2024-11-1096-Q006", "sibling_text": "aux engine running fine for few days then lub oilo dropping reasons", "sibling_family": "Auxiliary Engines", "via": "sibling", "answer_title": "Auxiliary engine sump/crankcase level decreases during operation — reasons", "cross_family": true }, { "answer_id": "LO-TEST-P02-003", "score": 0.6024875640869141, "sibling_score": 0.6024875640869141, "answer_score": 0.45495191812515257, "sibling_qid": "KOL-2026-06-0002-Q003", "sibling_text": "main engine lub oil contamination", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Abnormal LO condition: sump rise, colour, high temperature/pressure, lacquer, deterioration", "cross_family": true }, { "answer_id": "LO-TEST-P02-001", "score": 0.5946829915046692, "sibling_score": 0.5946829915046692, "answer_score": null, "sibling_qid": "KOL-2019-10-1484-Q003", "sibling_text": "lub oil additives reasons", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Lube-oil additives; detergency, dispersancy, lubricity and friction modifiers", "cross_family": true } ] }, { "qid": "CHE-2026-08-3886-Q004", "text": "Boiler pop up test?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "CHE-2026-08-3886", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-004", "score": 0.7871776819229126, "sibling_score": 0.7871776819229126, "answer_score": null, "sibling_qid": "CHE-2026-02-0242-Q002", "sibling_text": "pop up test of boiler", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-003", "score": 0.5440056920051575, "sibling_score": 0.5440056920051575, "answer_score": null, "sibling_qid": "MUM-2024-03-2760-Q004", "sibling_text": "how to test boiler safety valves told about popping test and accumulation pressure test accepted the answer", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "The accumulation test and the safety valve — required lift, how lift and capacity are verified, and why accumulation must stay inside the limit", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.5320448279380798, "sibling_score": 0.5320448279380798, "answer_score": null, "sibling_qid": "KOC-2026-03-2012-Q004", "sibling_text": "boiler water testing action", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false } ] }, { "qid": "CHE-2026-08-3886-Q005", "text": "Cast steel components in E/R and it's repair?", "family": "NDT & Material Testing", "subtopic": "Steel Grades for Ship", "tid": "CHE-2026-08-3886", "tray": "new", "candidates": [ { "answer_id": "STEEL-GR-003", "score": 0.5883225798606873, "sibling_score": 0.5883225798606873, "answer_score": null, "sibling_qid": "CHE-2026-04-0504-Q002", "sibling_text": "where tensile steel used repair procedure", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "High-tensile steel — where and why it is used", "cross_family": false }, { "answer_id": "MATPROP-A-003", "score": 0.5717795491218567, "sibling_score": 0.5717795491218567, "answer_score": null, "sibling_qid": "KOL-2023-07-3625-Q001", "sibling_text": "material of casing of turbocharger difference between steel and cast iron carbon percentage cast steel casing of turbocharger cracked how to repair", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Cast iron: grey, white, nodular; versus cast steel", "cross_family": false }, { "answer_id": "LH-ELEC-006", "score": 0.5149203538894653, "sibling_score": 0.5149203538894653, "answer_score": 0.41249963343143464, "sibling_qid": "MUM-2025-12-0992-Q012", "sibling_text": "valve broken from bridge how to repair i said to salvage from a old same sized valve he shouting then i said by welding again asking cast iron how to weld lh electrode explained", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "6. How would you approach a cast-iron valve repair when the examiner probes welding and low-hydrogen electrodes?", "cross_family": true } ] }, { "qid": "CHE-2026-08-3886-Q006", "text": "Cast iron and cast steel difference , carbon composition?", "family": "NDT & Material Testing", "subtopic": "Steel Grades for Ship", "tid": "CHE-2026-08-3886", "tray": "review", "candidates": [ { "answer_id": "SGB-212-002", "score": 0.7581005692481995, "sibling_score": 0.7581005692481995, "answer_score": null, "sibling_qid": "KOC-2025-04-1911-Q005", "sibling_text": "carbon content in stainless steel and cast iron", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Stainless steel — composition and the role of Cr, Ni, C", "cross_family": false }, { "answer_id": "SGB-212-004", "score": 0.7088994383811951, "sibling_score": 0.7088994383811951, "answer_score": 0.5005976527929306, "sibling_qid": "KOC-2024-10-1009-Q016", "sibling_text": "cast steel stain less steel difference tell me the composition and properties", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Mild steel vs cast steel vs stainless steel", "cross_family": false }, { "answer_id": "MATPROP-A-003", "score": 0.7040126919746399, "sibling_score": 0.7040126919746399, "answer_score": 0.6215757131576538, "sibling_qid": "KOL-2018-03-1857-Q003", "sibling_text": "alloy steel cast iron and stainless steel composition difference and property of each partly satisfied", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Cast iron: grey, white, nodular; versus cast steel", "cross_family": false } ] }, { "qid": "CHE-2026-08-3886-Q010", "text": "OMD AE and ME can interchange?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "OMD / Oil Mist Detector", "tid": "CHE-2026-08-3886", "tray": "new", "candidates": [ { "answer_id": "OMD-004", "score": 0.5779343247413635, "sibling_score": 0.5779343247413635, "answer_score": null, "sibling_qid": "CHE-2025-08-0045-Q002", "sibling_text": "omd requirement in me why not in ae", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What are the OMD requirements? Why is an OMD fitted on the main engine and not the auxiliary, and can the two be interchanged?", "cross_family": false }, { "answer_id": "ENG-NOM-001", "score": 0.5117224454879761, "sibling_score": 0.5117224454879761, "answer_score": 0.3127743646502495, "sibling_qid": "MUM-2026-07-3841-Q002", "sibling_text": "me and ae nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Nomenclature of ME and AE (asked together)", "cross_family": true }, { "answer_id": "AEME-DIFF-001", "score": 0.5044408440589905, "sibling_score": 0.5044408440589905, "answer_score": null, "sibling_qid": "MUM-2025-07-1149-Q002", "sibling_text": "construction difference between me and ae", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": true } ] }, { "qid": "CHE-2026-08-3886-Q011", "text": "Reamer?", "family": "Workshop & Welding", "subtopic": "Lathe / Tap & Die", "tid": "CHE-2026-08-3886", "tray": "review", "candidates": [ { "answer_id": "LATHE-TD-004", "score": 0.7012907862663269, "sibling_score": 0.7012907862663269, "answer_score": 0.47998122572898866, "sibling_qid": "MUM-2026-04-2691-Q005", "sibling_text": "reaming", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Reaming — purpose, use, and identifying reamers", "cross_family": false }, { "answer_id": "WTGS-325-005", "score": 0.47603777050971985, "sibling_score": 0.47603777050971985, "answer_score": null, "sibling_qid": "MUM-2024-08-2234-Q006", "sibling_text": "grinder maintenance", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Portable grinder: checks, maintenance & safety", "cross_family": false }, { "answer_id": "CYL-LINER-P03-007", "score": 0.4686613976955414, "sibling_score": 0.4686613976955414, "answer_score": null, "sibling_qid": "KOL-2022-04-3534-Q002", "sibling_text": "m e liner reconditioning", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Cylinder liner checks at overhaul, decarb and under-piston inspection", "cross_family": true } ] }, { "qid": "CHE-2026-08-3888-Q001", "text": "What about written status?", "family": "Status & Introduction", "subtopic": "", "tid": "CHE-2026-08-3888", "tray": "new", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.6124199628829956, "sibling_score": 0.6124199628829956, "answer_score": null, "sibling_qid": "MUM-2026-03-1294-Q001", "sibling_text": "status of writtens and orals", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": true }, { "answer_id": "EXHV-P01-001", "score": 0.5856415629386902, "sibling_score": 0.5856415629386902, "answer_score": null, "sibling_qid": "KOC-2026-08-2106-Q001", "sibling_text": "status of written oral company type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.46457934379577637, "sibling_score": 0.46457934379577637, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q001", "sibling_text": "type of vessel engine make written and oral status", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "CHE-2026-08-3888-Q002", "text": "What type of ship sailed?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2026-08-3888", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8125646710395813, "sibling_score": 0.8125646710395813, "answer_score": null, "sibling_qid": "CHE-2026-02-0478-Q004", "sibling_text": "this type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.786060631275177, "sibling_score": 0.786060631275177, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.46784143447875975, "sibling_score": null, "answer_score": 0.46784143447875975, "sibling_qid": "", "sibling_text": "type a and type b ships how form and cargo set the freeboard", "sibling_family": "", "via": "answer_title", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "CHE-2026-08-3888-Q003", "text": "Safeties in Fire main line? ", "family": "SOLAS - Fire Safety", "subtopic": "Fire Main / Isolation & Relief Valve", "tid": "CHE-2026-08-3888", "tray": "new", "candidates": [ { "answer_id": "FFF-A-003", "score": 0.6359544396400452, "sibling_score": 0.6359544396400452, "answer_score": null, "sibling_qid": "CHE-2026-02-0113-Q007", "sibling_text": "fire line safeties", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fire main, hydrants, isolating and deck valves, and fire-line fittings", "cross_family": false }, { "answer_id": "ISC-329-002", "score": 0.5540414452552795, "sibling_score": 0.5540414452552795, "answer_score": null, "sibling_qid": "KOC-2024-11-0463-Q007", "sibling_text": "international shore connection fire line safeties", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "How is the international shore connection connected and used when taking fire-fighting assistance from shore or another ship?", "cross_family": false }, { "answer_id": "MR-DS-PV-B-001", "score": 0.5324132442474365, "sibling_score": 0.5324132442474365, "answer_score": null, "sibling_qid": "KOL-2020-09-0426-Q001", "sibling_text": "safety in ig when running one main safety if it is not there it can be havoc for human or ship", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "1. Function and working principle of the tanker deck seal", "cross_family": true } ] }, { "qid": "CHE-2026-08-3888-Q005", "text": "Bitter end where is fitted and what is the purpose and draw and explain?", "family": "Auxiliary Equipment", "subtopic": "Anchor / Anchor Chain", "tid": "CHE-2026-08-3888", "tray": "new", "candidates": [ { "answer_id": "ANCH-CHN-A-004", "score": 0.60748291015625, "sibling_score": 0.60748291015625, "answer_score": 0.28579218983650206, "sibling_qid": "KOC-2023-03-0155-Q004", "sibling_text": "draw the diagram of bitter end to anchor along with parts", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Cable arrangement: anchor to bitter end, and the bitter-end release", "cross_family": false }, { "answer_id": "VENT-HD-003", "score": 0.374606192111969, "sibling_score": 0.374606192111969, "answer_score": null, "sibling_qid": "KOC-2022-08-0086-Q004", "sibling_text": "bunker vent diagram and explain", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Fuel-oil / diesel-oil / bunker tank vent arrangements — draw and explain", "cross_family": false }, { "answer_id": "ANCH-C-004", "score": 0.2770699098706245, "sibling_score": null, "answer_score": 0.2770699098706245, "sibling_qid": "", "sibling_text": "how the cable is attached and let go the bitter end path anchor hawse pipe gypsy cable lifter spurling pipe chain locker bitter end secured to the ship s structure via a bitter end shackle cable clench", "sibling_family": "", "via": "answer_title", "answer_title": "How the cable is attached and let go (the bitter end)", "cross_family": false } ] }, { "qid": "CHE-2026-08-3889-Q005", "text": "Reason for NOZZLE Ring in Turbocharger? ", "family": "Turbocharger", "subtopic": "TC Construction", "tid": "CHE-2026-08-3889", "tray": "review", "candidates": [ { "answer_id": "TC-CONST-004", "score": 0.7198103070259094, "sibling_score": 0.7198103070259094, "answer_score": 0.4625285089015961, "sibling_qid": "CHE-2025-08-0198-Q004", "sibling_text": "turbocharger in your ae function of nozzle ring", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbine-side components: nozzle rings, vanes and blade fitting", "cross_family": false }, { "answer_id": "TCS-059-P04-004", "score": 0.6770414113998413, "sibling_score": 0.6770414113998413, "answer_score": 0.5098726004362106, "sibling_qid": "KOL-2025-06-1808-Q011", "sibling_text": "function of nozzle ring in turbocharger what will happen if nozzle ring is fouled", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Nozzle ring: function, gas path, and nozzle type", "cross_family": false }, { "answer_id": "SHRD-440-001", "score": 0.635627031326294, "sibling_score": 0.635627031326294, "answer_score": 0.47475868463516235, "sibling_qid": "KOC-2023-10-0985-Q013", "sibling_text": "shroud ring in turbocharger where used", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "What is the shroud ring, where is it fitted, and what does it do?", "cross_family": false } ] }, { "qid": "CHE-2026-08-3889-Q006", "text": "Defects in Nozzle Ring? How to change the Nozzle Ring?", "family": "Turbocharger", "subtopic": "Turbocharger Construction & Surging", "tid": "CHE-2026-08-3889", "tray": "new", "candidates": [ { "answer_id": "TC-CONST-004", "score": 0.6389210224151611, "sibling_score": 0.6389210224151611, "answer_score": null, "sibling_qid": "CHE-2026-09-3925-Q002", "sibling_text": "nozzle ring maintenance", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbine-side components: nozzle rings, vanes and blade fitting", "cross_family": false }, { "answer_id": "TCS-059-P04-004", "score": 0.6363500356674194, "sibling_score": 0.6363500356674194, "answer_score": 0.3984618946909904, "sibling_qid": "KOL-2025-06-1808-Q014", "sibling_text": "what if no nozzle ring", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Nozzle ring: function, gas path, and nozzle type", "cross_family": false }, { "answer_id": "TURBO-CS-P03-014", "score": 0.5892583131790161, "sibling_score": 0.5892583131790161, "answer_score": null, "sibling_qid": "KOL-2021-08-3441-Q003", "sibling_text": "t c nozzle ring cleaning", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Routine maintenance and water-washing; nozzle-ring cleaning", "cross_family": false } ] }, { "qid": "CHE-2026-08-3890-Q001", "text": "Boiler safety valve setting?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "CHE-2026-08-3890", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-001", "score": 0.8651991486549377, "sibling_score": 0.8651991486549377, "answer_score": null, "sibling_qid": "CHE-2026-04-0500-Q005", "sibling_text": "boiler safety valve setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.8234284520149231, "sibling_score": 0.8234284520149231, "answer_score": null, "sibling_qid": "MUM-2026-03-2935-Q013", "sibling_text": "boiler safety valve setting in presence of surveyor after survey", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.8127606511116028, "sibling_score": 0.8127606511116028, "answer_score": null, "sibling_qid": "KOC-2026-05-0034-Q010", "sibling_text": "boiler safety valve types and how safety valve is set complete procedures", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "CHE-2026-08-3890-Q002", "text": " Gagging tool design?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "CHE-2026-08-3890", "tray": "new", "candidates": [ { "answer_id": "PIPEFAB-012", "score": 0.435386061668396, "sibling_score": 0.435386061668396, "answer_score": null, "sibling_qid": "KOL-2018-04-3137-Q004", "sibling_text": "flaring tool", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "What is the purpose of a flaring tool?", "cross_family": true }, { "answer_id": "AE-MB-007", "score": 0.4098106622695923, "sibling_score": 0.4098106622695923, "answer_score": null, "sibling_qid": "MUM-2025-07-2344-Q006", "sibling_text": "how does the tool look like which will prevent falling of lower keep", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Supporting the lower keep so it cannot fall during main-bearing work", "cross_family": true }, { "answer_id": "BBR-005", "score": 0.4065491557121277, "sibling_score": 0.4065491557121277, "answer_score": null, "sibling_qid": "MUM-2026-05-3144-Q001", "sibling_text": "pinching screw", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "What are pinching (jacking) screws and how are they used in workshop removal/holding work?", "cross_family": true } ] }, { "qid": "CHE-2026-08-3890-Q005", "text": "ME Stuffing box how many rings and names?", "family": "2-Stroke - Components (Other)", "subtopic": "Stuffing Box / Piston Rod Gland", "tid": "CHE-2026-08-3890", "tray": "new", "candidates": [ { "answer_id": "SB-PRG-B-002", "score": 0.5734855532646179, "sibling_score": 0.5734855532646179, "answer_score": 0.28398966789245605, "sibling_qid": "MUM-2023-03-2165-Q002", "sibling_text": "stuffing box overhaul draw the various segments of rings if limit exceed what can be done", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Worn rings, springs, O-rings and no-spare actions", "cross_family": false }, { "answer_id": "SBPG-A-001", "score": 0.566125214099884, "sibling_score": 0.566125214099884, "answer_score": null, "sibling_qid": "MUM-2025-08-1160-Q007", "sibling_text": "me stuffing box complete", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Stuffing box — location, arrangement, construction and function", "cross_family": false }, { "answer_id": "PRING-B-004", "score": 0.5540936589241028, "sibling_score": 0.5540936589241028, "answer_score": null, "sibling_qid": "KOC-2025-08-1570-Q015", "sibling_text": "liner how many rings show me positions", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Function, sealing, position & arrangement", "cross_family": false } ] }, { "qid": "CHE-2026-08-3891-Q001", "text": "How will identify the fire if in compartment or somewhere?", "family": "SOLAS - Fire Safety", "subtopic": "", "tid": "CHE-2026-08-3891", "tray": "new", "candidates": [ { "answer_id": "FSH-DET-001", "score": 0.6479911208152771, "sibling_score": 0.6479911208152771, "answer_score": 0.47796135544776913, "sibling_qid": "CHE-2026-05-0580-Q005", "sibling_text": "fire detectors where which detectors are used where it is mentioned", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Types of fire, smoke, heat and flame detectors used onboard", "cross_family": false }, { "answer_id": "FSH-DET-002", "score": 0.6238548159599304, "sibling_score": 0.6238548159599304, "answer_score": null, "sibling_qid": "KOL-2020-02-2368-Q001", "sibling_text": "how many types of fire detectors onboard describe smoke detectors with diagram", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Working of smoke detectors — ionization type and cargo-hold smoke detection", "cross_family": false }, { "answer_id": "FSH-DET-004", "score": 0.6196353435516357, "sibling_score": 0.6196353435516357, "answer_score": null, "sibling_qid": "KOC-2026-03-0887-Q008", "sibling_text": "fire detector available onboard heat type application", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Heat detector locations onboard, and why heat detectors in ECR, workshop and machinery spaces", "cross_family": false } ] }, { "qid": "CHE-2026-08-3891-Q002", "text": "If smoke in compartment how will you escape?", "family": "SOLAS - Fire Safety", "subtopic": "Fire Emergency Response / Container Firefighting", "tid": "CHE-2026-08-3891", "tray": "new", "candidates": [ { "answer_id": "FIRE-P04-08", "score": 0.623717725276947, "sibling_score": 0.623717725276947, "answer_score": 0.44982102811336516, "sibling_qid": "CHE-2025-10-0066-Q002", "sibling_text": "walking on the narrow corridor you found or feel smoke and temperature coming from one room what you will do i said find for local activation point check for fire extinguisher and shout then he said you will directly enter the room or wt then i said no sir i will feel the temperature of the room by checking outside bulkhead and check for density of the smoke then he said how u will check then i said open the door slightly by staying behind the door he said k", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Safe approach to a suspected compartment fire — smoke and heat outside a door", "cross_family": false }, { "answer_id": "FIRE-P03-05", "score": 0.5839127898216248, "sibling_score": 0.5839127898216248, "answer_score": null, "sibling_qid": "CHE-2021-06-0508-Q010", "sibling_text": "fire dampers and smoke dampers where it is onboard", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fire dampers, smoke dampers and engine-room ventilation flaps — definitions, closures and testing", "cross_family": false }, { "answer_id": "FCP-001", "score": 0.5722325444221497, "sibling_score": 0.5722325444221497, "answer_score": null, "sibling_qid": "KOC-2025-02-0546-Q002", "sibling_text": "fire control plan content expecting emerg escape route", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "What is the fire control plan, and what does it show — including bulkhead types and escape routes?", "cross_family": false } ] }, { "qid": "CHE-2026-08-3891-Q009", "text": "What is COD and BOD ? ", "family": "MARPOL - Annex IV (Sewage)", "subtopic": "Sewage Discharge", "tid": "CHE-2026-08-3891", "tray": "new", "candidates": [ { "answer_id": "STP-SEW-003", "score": 0.5181538462638855, "sibling_score": 0.5181538462638855, "answer_score": null, "sibling_qid": "KOL-2026-04-2052-Q005", "sibling_text": "bod and value", "sibling_family": "MARPOL - Annex IV (Sewage)", "via": "sibling", "answer_title": "Effluent standard and testing — MEPC.227(64)", "cross_family": false }, { "answer_id": "SEW-DISCH-005", "score": 0.4111088514328003, "sibling_score": 0.4111088514328003, "answer_score": 0.29446580708026887, "sibling_qid": "CHE-2025-08-0026-Q006", "sibling_text": "what is bod if value above the limit what will happen", "sibling_family": "MARPOL - Annex IV (Sewage)", "via": "sibling", "answer_title": "5. Sewage effluent testing and BOD", "cross_family": false }, { "answer_id": "BCH-IBC-A-002", "score": 0.3754301965236664, "sibling_score": 0.3754301965236664, "answer_score": null, "sibling_qid": "MUM-2026-09-3983-Q010", "sibling_text": "ibc and bc code", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "The IBC Code — scope, purpose and application", "cross_family": true } ] }, { "qid": "CHE-2026-08-3891-Q010", "text": " Difference between COD and BOD ?", "family": "MARPOL - Annex IV (Sewage)", "subtopic": "Sewage Discharge", "tid": "CHE-2026-08-3891", "tray": "new", "candidates": [ { "answer_id": "STP-SEW-003", "score": 0.5032121539115906, "sibling_score": 0.5032121539115906, "answer_score": null, "sibling_qid": "KOL-2026-04-2052-Q005", "sibling_text": "bod and value", "sibling_family": "MARPOL - Annex IV (Sewage)", "via": "sibling", "answer_title": "Effluent standard and testing — MEPC.227(64)", "cross_family": false }, { "answer_id": "CERT-LIST-P02-003", "score": 0.4479077458381653, "sibling_score": 0.4479077458381653, "answer_score": null, "sibling_qid": "MUM-2025-09-0464-Q005", "sibling_text": "diff between cob and cof", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Certificates that decide ship type and permitted cargo", "cross_family": true }, { "answer_id": "IBC-BCH-B-001", "score": 0.41721218824386597, "sibling_score": 0.41721218824386597, "answer_score": 0.29662401527166365, "sibling_qid": "KOC-2024-11-0452-Q004", "sibling_text": "different between ibc bch code", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Difference between the IBC Code and the BCH Code", "cross_family": true } ] }, { "qid": "CHE-2026-08-3892-Q001", "text": "What type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2026-08-3892", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.816400945186615, "sibling_score": 0.816400945186615, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.7898275852203369, "sibling_score": 0.7898275852203369, "answer_score": 0.5096702992916107, "sibling_qid": "MUM-2026-02-0731-Q002", "sibling_text": "what type of ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7815303802490234, "sibling_score": 0.7815303802490234, "answer_score": 0.5341217339038848, "sibling_qid": "KOC-2026-09-2198-Q001", "sibling_text": "type a and b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "CHE-2026-08-3892-Q002", "text": "Written results", "family": "Status & Introduction", "subtopic": "WRITTEN STATUS", "tid": "CHE-2026-08-3892", "tray": "new", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.5137008428573608, "sibling_score": 0.5137008428573608, "answer_score": null, "sibling_qid": "MUM-2026-03-1294-Q001", "sibling_text": "status of writtens and orals", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": true }, { "answer_id": "CERT-LIST-P02-002", "score": 0.47122305631637573, "sibling_score": 0.47122305631637573, "answer_score": null, "sibling_qid": "KOC-2021-07-0015-Q007", "sibling_text": "documents", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Document of Compliance, Certificate and Statement of Compliance", "cross_family": true }, { "answer_id": "LO-TEST-P01-001", "score": 0.4710926413536072, "sibling_score": 0.4710926413536072, "answer_score": null, "sibling_qid": "MUM-2025-07-1150-Q012", "sibling_text": "lo tests carried out", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Onboard lube-oil tests and the viscosity test", "cross_family": true } ] }, { "qid": "CHE-2026-08-3892-Q003", "text": "Last exam time question", "family": "Status & Introduction", "subtopic": "LAST ATTEMPT QUESTION ASKED", "tid": "CHE-2026-08-3892", "tray": "new", "candidates": [ { "answer_id": "COC-001", "score": 0.49846673011779785, "sibling_score": 0.49846673011779785, "answer_score": null, "sibling_qid": "MUM-2026-03-2952-Q020", "sibling_text": "how much is the max time given", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is a Condition of Class? Give examples, say where it is found, how much time is given to rectify it, and what happens if it is not met in time.", "cross_family": true }, { "answer_id": "VIT-MECH-B-002", "score": 0.48916494846343994, "sibling_score": 0.48916494846343994, "answer_score": null, "sibling_qid": "KOL-2019-07-1469-Q004", "sibling_text": "what is the conditions for timing adjustment in vit and cross questions", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How VIT is adjusted and set — timing and fuel-quality (FQS) interactions", "cross_family": true }, { "answer_id": "INDCARD-C-001", "score": 0.47419822216033936, "sibling_score": 0.47419822216033936, "answer_score": null, "sibling_qid": "KOC-2025-11-2082-Q004", "sibling_text": "what is early injection and late injection consequences and 15 minute cross question on that", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Early/late injection, ignition delay & after-burning on the indicator card", "cross_family": true } ] }, { "qid": "CHE-2026-08-3892-Q005", "text": "Diaphragm gland in place overhaul procedure step by step?", "family": "2-Stroke - Components (Other)", "subtopic": "Stuffing Box / Piston Rod Gland", "tid": "CHE-2026-08-3892", "tray": "new", "candidates": [ { "answer_id": "SB-PRG-B-003", "score": 0.485496461391449, "sibling_score": 0.485496461391449, "answer_score": null, "sibling_qid": "KOC-2022-01-1775-Q005", "sibling_text": "stuffing box overhaul just overhaul no need to explain the removal of stuffing box keep two studs below the working plate from the piston palm as a safety measure tell this in the beginning", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Safety, working table and securing studs", "cross_family": false }, { "answer_id": "CYL-LINER-P03-006", "score": 0.48375141620635986, "sibling_score": 0.48375141620635986, "answer_score": null, "sibling_qid": "KOL-2017-04-1289-Q008", "sibling_text": "removing old liner procedure of main engine and checks br fitting new liner", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Fitting a new cylinder liner — checks and precautions during renewal and installation", "cross_family": false }, { "answer_id": "SB-PRG-B-001", "score": 0.48139676451683044, "sibling_score": 0.48139676451683044, "answer_score": null, "sibling_qid": "MUM-2026-07-3761-Q012", "sibling_text": "detail the procedure for an in place overhaul of a stuffing box", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "In-situ stuffing box overhaul (piston in the engine)", "cross_family": false } ] }, { "qid": "CHE-2026-08-3892-Q006", "text": "Tool name for ring butt clearance?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Piston & Piston Rings", "tid": "CHE-2026-08-3892", "tray": "new", "candidates": [ { "answer_id": "CYL-LINER-P04-002", "score": 0.6314412355422974, "sibling_score": 0.6314412355422974, "answer_score": null, "sibling_qid": "KOL-2023-08-3630-Q010", "sibling_text": "name of tool used for liner clearance", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Judging, measuring, removing & discarding a cylinder liner", "cross_family": true }, { "answer_id": "PRING-CLR-A-002", "score": 0.6271539926528931, "sibling_score": 0.6271539926528931, "answer_score": 0.4403739243745804, "sibling_qid": "MUM-2026-03-2658-Q007", "sibling_text": "how to take ae piston ring butt clearance", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Piston-ring clearances and calibration — butt, axial, radial, wear limits", "cross_family": false }, { "answer_id": "AE-CRP-003", "score": 0.5449641942977905, "sibling_score": 0.5449641942977905, "answer_score": null, "sibling_qid": "MUM-2026-05-3238-Q003", "sibling_text": "how to take piston ring clearance of ae", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE piston, ring and groove checks; piston material", "cross_family": false } ] }, { "qid": "CHE-2026-08-3892-Q008", "text": "One gasket is damaged in plate type cooler no spare on board what will u do?", "family": "Heat Exchangers & Coolers", "subtopic": "Plate Type", "tid": "CHE-2026-08-3892", "tray": "new", "candidates": [ { "answer_id": "STHX-005", "score": 0.608271062374115, "sibling_score": 0.608271062374115, "answer_score": null, "sibling_qid": "KOC-2025-08-1939-Q005", "sibling_text": "shell and tube cooler leaking how to remove and replace few more", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "STHX-05 — Damaged-tube removal, tube renewal, retubing tools and procedure", "cross_family": false }, { "answer_id": "PTHE-003", "score": 0.5887057185173035, "sibling_score": 0.5887057185173035, "answer_score": null, "sibling_qid": "CHE-2026-08-3892-Q007", "sibling_text": "plate type cooler maintenance cleaning procedure", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Opening, cleaning, overhaul, plate alignment and reassembly", "cross_family": false }, { "answer_id": "STHX-004", "score": 0.5775507092475891, "sibling_score": 0.5775507092475891, "answer_score": null, "sibling_qid": "KOL-2018-04-1369-Q004", "sibling_text": "tube type cooler s one tube having erosion how what will be ur action", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "STHX-04 — Tube plugging, tube-plate leakage and operating with a leaking tube", "cross_family": false } ] }, { "qid": "CHE-2026-08-3892-Q014", "text": "Which type of welding rod used for MS, SS, cast iron materials? internal ques", "family": "Workshop & Welding", "subtopic": "Cast Iron Welding", "tid": "CHE-2026-08-3892", "tray": "review", "candidates": [ { "answer_id": "WELD-B-001", "score": 0.6861324906349182, "sibling_score": 0.6861324906349182, "answer_score": null, "sibling_qid": "MUM-2026-06-3641-Q001", "sibling_text": "cast iron welding which electrode", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding & crack-repair of aluminium and cast iron, including metal stitching", "cross_family": false }, { "answer_id": "LH-ELEC-003", "score": 0.5332550764083862, "sibling_score": null, "answer_score": 0.5332550764083862, "sibling_qid": "", "sibling_text": "3 how do you select or order the correct welding electrode or rod match to base material and strength first mild steel high tensile stainless cast iron this fixes the electrode family then coating type for the duty rutile e g e6013 general basic low hydrogen e7018 crack sensitive or high tensile", "sibling_family": "", "via": "answer_title", "answer_title": "3. How do you select or order the correct welding electrode or rod?", "cross_family": false }, { "answer_id": "WELD-PATM-002", "score": 0.4591861069202423, "sibling_score": null, "answer_score": 0.4591861069202423, "sibling_qid": "", "sibling_text": "manual metal arc electrode and current selection electrode matched to base metal duty e6013 rutile general e7018 basic low hydrogen strength crack resistance coating type matters rutile easy and smooth basic low hydrogen tougher must be kept dry baked", "sibling_family": "", "via": "answer_title", "answer_title": "Manual metal-arc – electrode and current selection", "cross_family": false } ] }, { "qid": "CHE-2026-08-3892-Q016", "text": "Troubleshooting in your career ? internal ques", "family": "Status & Introduction", "subtopic": "", "tid": "CHE-2026-08-3892", "tray": "review", "candidates": [ { "answer_id": "PIST-CSI-B-001", "score": 0.7875450253486633, "sibling_score": 0.7875450253486633, "answer_score": null, "sibling_qid": "CHE-2026-08-3897-Q011", "sibling_text": "any important troubleshooting in your career internal ques", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main-engine piston — construction and the checks expected", "cross_family": false }, { "answer_id": "TC-CS-P01-006", "score": 0.45574936270713806, "sibling_score": 0.45574936270713806, "answer_score": null, "sibling_qid": "KOC-2024-07-1845-Q010", "sibling_text": "me t c overhauling procedures what is the first thing to do i just mixed up procedures wants everything in order then said read maintenance operation manuals more different author books and make use of all possible materials half knowledge is more dangerous than no knowledge asked to wait for internal paul paul why gave only 1 function said not able to book 4b due to no seat available how u asses urself said answered more than 70 75 ok try to learn more you are just on the track can do better next time what i understood might have given 6 if gave along with 4b so try ur best best of luck", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "F·Turbocharger overhaul and clearances (ME and AE)", "cross_family": true }, { "answer_id": "EXHV-P01-001", "score": 0.4442584812641144, "sibling_score": 0.4442584812641144, "answer_score": null, "sibling_qid": "MUM-2026-03-0866-Q001", "sibling_text": "coc attempt internal sirish sir external vishwanathan iyer sir started with what function you are applying how many ships type of ships you did after class 4 pre sea from where how many written cleared what about other functions", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false } ] }, { "qid": "CHE-2026-08-3892-Q020", "text": "Finally said anyhow I will pass u ,god bless u congrats. COC attempt", "family": "Status & Introduction", "subtopic": "", "tid": "CHE-2026-08-3892", "tray": "new", "candidates": [ { "answer_id": "CERT-LIST-P01-001", "score": 0.6070390939712524, "sibling_score": 0.6070390939712524, "answer_score": null, "sibling_qid": "MUM-2026-03-2596-Q007", "sibling_text": "finally coc", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "List the statutory certificates carried onboard a ship.", "cross_family": true }, { "answer_id": "STAB-SD-C-002", "score": 0.5554134845733643, "sibling_score": 0.5554134845733643, "answer_score": null, "sibling_qid": "MUM-2025-12-0645-Q005", "sibling_text": "static stability and what you will get from it finally passed and coc done with class 2 thank you all for this wonderful channel and your participation i only prepared for previous question from this group nothing else thank you once again", "sibling_family": "", "via": "sibling", "answer_title": "Static stability — what it is and what it quantifies", "cross_family": false }, { "answer_id": "CFF-P02-001", "score": 0.5506811141967773, "sibling_score": 0.5506811141967773, "answer_score": null, "sibling_qid": "KOL-2017-09-1324-Q005", "sibling_text": "fatigue failure lots of cross qst with all qst finally done with cl 2 thank you all for your support and best of luck for who r in que", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Fatigue failure — what it is and where it occurs", "cross_family": true } ] }, { "qid": "CHE-2026-08-3893-Q002", "text": " What are the checks you do on engine room overhead crane?", "family": "Auxiliary Equipment", "subtopic": "Crane (ER / Provision)", "tid": "CHE-2026-08-3893", "tray": "review", "candidates": [ { "answer_id": "CRANE-ER-001", "score": 0.8217502236366272, "sibling_score": 0.8217502236366272, "answer_score": 0.5571064978837966, "sibling_qid": "MUM-2026-04-2956-Q007", "sibling_text": "engine room crane checks", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Pre-use safety, maintenance & certification checks on the ER crane", "cross_family": false }, { "answer_id": "ERC-345-003", "score": 0.8115677237510681, "sibling_score": 0.8115677237510681, "answer_score": null, "sibling_qid": "CHE-2025-08-0411-Q010", "sibling_text": "er crane checks before overhaul", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Pre-lift checks and maintenance", "cross_family": false }, { "answer_id": "AUX-CRANE-004", "score": 0.7771570086479187, "sibling_score": 0.7771570086479187, "answer_score": 0.5961437284946441, "sibling_qid": "MUM-2025-02-2270-Q004", "sibling_text": "checks before overhauling piston on crane", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Checks before using the engine-room crane for piston overhaul or major engine lifting", "cross_family": false } ] }, { "qid": "CHE-2026-08-3893-Q006", "text": "Boiler safety valve pressure setting? ", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "CHE-2026-08-3893", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-001", "score": 0.8844408392906189, "sibling_score": 0.8844408392906189, "answer_score": null, "sibling_qid": "CHE-2026-09-3931-Q006", "sibling_text": "boiler safety valve pressure setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.8181702494621277, "sibling_score": 0.8181702494621277, "answer_score": null, "sibling_qid": "CHE-2026-09-3919-Q009", "sibling_text": "boiler safety valve setting in front of surveyor first and second safety valve pressure difference", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.8161984086036682, "sibling_score": 0.8161984086036682, "answer_score": null, "sibling_qid": "CHE-2026-05-0583-Q002", "sibling_text": "boiler safety valve lifting pressure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "CHE-2026-08-3893-Q007", "text": "What is the pressure of second safety v/v?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "CHE-2026-08-3893", "tray": "new", "candidates": [ { "answer_id": "ACRV-005", "score": 0.580662190914154, "sibling_score": 0.580662190914154, "answer_score": null, "sibling_qid": "CHE-2026-03-0497-Q003", "sibling_text": "what is the pressure difference between two safety valve set pressure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-002", "score": 0.5802639126777649, "sibling_score": 0.5802639126777649, "answer_score": null, "sibling_qid": "KOL-2026-02-3922-Q005", "sibling_text": "what is lifting of safety valve tell only within 3 percent of designated set pressure nothing else", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Acceptance limits and durations — the accumulation limit, the maximum test periods, and the action if the limit is exceeded", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.5628128051757812, "sibling_score": 0.5628128051757812, "answer_score": null, "sibling_qid": "CHE-2026-09-3919-Q009", "sibling_text": "boiler safety valve setting in front of surveyor first and second safety valve pressure difference", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false } ] }, { "qid": "CHE-2026-08-3894-Q001", "text": "Type of ship?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2026-08-3894", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8368158936500549, "sibling_score": 0.8368158936500549, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8019043207168579, "sibling_score": 0.8019043207168579, "answer_score": 0.5472971469163894, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8006531000137329, "sibling_score": 0.8006531000137329, "answer_score": 0.5216498911380768, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "CHE-2026-08-3894-Q002", "text": "ELFI valve working?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "ELFI", "tid": "CHE-2026-08-3894", "tray": "new", "candidates": [ { "answer_id": "FIVA-220-001", "score": 0.6284640431404114, "sibling_score": 0.6284640431404114, "answer_score": 0.39145367741584775, "sibling_qid": "CHE-2026-09-3916-Q002", "sibling_text": "fiva valve working", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "FIVA valve — construction, function and basic operation", "cross_family": false }, { "answer_id": "MEB-MEC-P03-001", "score": 0.5406687259674072, "sibling_score": 0.5406687259674072, "answer_score": null, "sibling_qid": "KOL-2023-02-4019-Q009", "sibling_text": "fiva elfi valve does me b has ccu", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "ME-B vs ME-C — the core difference", "cross_family": true }, { "answer_id": "FIVA-220-003", "score": 0.5328337550163269, "sibling_score": 0.5328337550163269, "answer_score": null, "sibling_qid": "MUM-2026-03-2588-Q002", "sibling_text": "how fiva valve working what will be it s position in fail safe", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "FIVA control signal, controller type, voice-coil drive and fail-safe behaviour", "cross_family": false } ] }, { "qid": "CHE-2026-08-3894-Q008", "text": "How to do SFOC calculation in ME and MC Engines?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "SFOC", "tid": "CHE-2026-08-3894", "tray": "new", "candidates": [ { "answer_id": "SFOC-001", "score": 0.621452271938324, "sibling_score": 0.621452271938324, "answer_score": 0.36499519050121304, "sibling_qid": "KOC-2025-10-1946-Q007", "sibling_text": "sfoc calculations", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What is SFOC? Definition, formula, unit — and how you get the corrected density", "cross_family": false }, { "answer_id": "SFOC-002", "score": 0.3846455067396164, "sibling_score": null, "answer_score": 0.3846455067396164, "sibling_qid": "", "sibling_text": "how do you calculate sfoc on board the step by step procedure conditions first steady load and rpm moderate sea no manoeuvring no soot blowing no transfers one fuel grade throughout log the start and stop flowmeter readings and the exact times use the minimum test duration in the maker s or ship s procedure extend it while conditions remain steady", "sibling_family": "", "via": "answer_title", "answer_title": "How do you calculate SFOC on board? The step-by-step procedure", "cross_family": false }, { "answer_id": "SFOC-007", "score": 0.35159868001937866, "sibling_score": null, "answer_score": 0.35159868001937866, "sibling_qid": "", "sibling_text": "what is the difference in sfoc between an me engine and an mc engine mc and mc c the camshaft drives the fuel pumps the exhaust valve actuators and the starting air distributor timing is fixed by the cam profile vit and super vit on the mc vary injection timing only within mechanical limits mainly in the upper load range", "sibling_family": "", "via": "answer_title", "answer_title": "What is the difference in SFOC between an ME engine and an MC engine?", "cross_family": false } ] }, { "qid": "CHE-2026-08-3895-Q001", "text": "Type of ship?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2026-08-3895", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8368158936500549, "sibling_score": 0.8368158936500549, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8019043803215027, "sibling_score": 0.8019043803215027, "answer_score": 0.5472971469163894, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8006531000137329, "sibling_score": 0.8006531000137329, "answer_score": 0.5216498911380768, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "CHE-2026-08-3895-Q004", "text": "If liquid level gauge malfunction how will you come to know level in tank?", "family": "Automation & Controls", "subtopic": "Controller (Temp/Level)", "tid": "CHE-2026-08-3895", "tray": "review", "candidates": [ { "answer_id": "TPL-SENS-B-001", "score": 0.6668334603309631, "sibling_score": 0.6668334603309631, "answer_score": 0.4785050302743912, "sibling_qid": "KOL-2022-10-3576-Q005", "sibling_text": "asked by rao remote level sensing guage of bunker tank showing error what will be your actions and how to rectify it", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Level sensing — float switches, level transmitters & boiler remote indicators", "cross_family": false }, { "answer_id": "CTRL-TL-003", "score": 0.6375181674957275, "sibling_score": 0.6375181674957275, "answer_score": null, "sibling_qid": "KOL-2017-07-1310-Q002", "sibling_text": "offset in tank level how to rectify", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Feedback, open/closed loop, offset, hysteresis, P-I-D action", "cross_family": false }, { "answer_id": "TPL-SENS-A-001", "score": 0.6195042729377747, "sibling_score": 0.6195042729377747, "answer_score": null, "sibling_qid": "MUM-2022-08-0942-Q008", "sibling_text": "how level of boiler measured using dp cell", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Differential pressure cell / DP transmitter working and use", "cross_family": false } ] }, { "qid": "CHE-2026-08-3895-Q005", "text": "Explain MLC?", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "CHE-2026-08-3895", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-006", "score": 0.5031898617744446, "sibling_score": 0.5031898617744446, "answer_score": null, "sibling_qid": "MUM-2026-07-3680-Q005", "sibling_text": "what is mlc certificate under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false }, { "answer_id": "MLC-WRH-B-001", "score": 0.49004772305488586, "sibling_score": 0.49004772305488586, "answer_score": 0.2924519911408424, "sibling_qid": "KOC-2026-05-2135-Q011", "sibling_text": "mlc titles explain title 1 explain dmlc part 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "MLC-WRH-B-007", "score": 0.4768693447113037, "sibling_score": 0.4768693447113037, "answer_score": null, "sibling_qid": "MUM-2026-01-0701-Q002", "sibling_text": "detainable deficiency of mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false } ] }, { "qid": "CHE-2026-08-3895-Q009", "text": "What is SEA?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "LSA Code", "tid": "CHE-2026-08-3895", "tray": "new", "candidates": [ { "answer_id": "CAS-ESTOP-001", "score": 0.4655994474887848, "sibling_score": 0.4655994474887848, "answer_score": null, "sibling_qid": "MUM-2026-01-0697-Q002", "sibling_text": "green seas", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "Engine-room flooding / rapidly rising bilges — immediate action as 2/E", "cross_family": true }, { "answer_id": "ALT-FUEL-001", "score": 0.46330714225769043, "sibling_score": 0.46330714225769043, "answer_score": null, "sibling_qid": "MUM-2026-04-3029-Q004", "sibling_text": "green sea", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What alternative or latest marine fuels are used for decarbonisation?", "cross_family": true }, { "answer_id": "AE-CRP-005", "score": 0.45551228523254395, "sibling_score": 0.45551228523254395, "answer_score": null, "sibling_qid": "MUM-2026-05-3248-Q001", "sibling_text": "introduction sea time company pre sea ship type engine type me", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": true } ] }, { "qid": "CHE-2026-08-3895-Q011", "text": "how many countries head to agree the IMO amendment?", "family": "IMO Structure & Conventions", "subtopic": "IMO / Committees / Codes", "tid": "CHE-2026-08-3895", "tray": "new", "candidates": [ { "answer_id": "IMO-5PIL-001", "score": 0.5604340434074402, "sibling_score": 0.5604340434074402, "answer_score": 0.3850886896252632, "sibling_qid": "CHE-2026-08-3895-Q010", "sibling_text": "what is imo and its amendment", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Structure of IMO — the main organs", "cross_family": false }, { "answer_id": "IMO-5PIL-008", "score": 0.5259919166564941, "sibling_score": 0.5259919166564941, "answer_score": null, "sibling_qid": "MUM-2023-09-0132-Q004", "sibling_text": "imo new ammendments which will be inforce from 1 jan 2024", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Recent / latest conventions and amendments in force", "cross_family": false }, { "answer_id": "IMO-CODES-P02-001", "score": 0.5195479989051819, "sibling_score": 0.5195479989051819, "answer_score": 0.4111058682203293, "sibling_qid": "KOC-2025-11-0712-Q002", "sibling_text": "latest imo resolution in 2025", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "IMO instruments: convention, code, protocol, amendment, regulation, resolution and rule", "cross_family": false } ] }, { "qid": "CHE-2026-08-3896-Q001", "text": "types of ships sailed?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2026-08-3896", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8162106871604919, "sibling_score": 0.8162106871604919, "answer_score": null, "sibling_qid": "CHE-2026-09-3938-Q001", "sibling_text": "types of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7797151803970337, "sibling_score": 0.7797151803970337, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7758318781852722, "sibling_score": 0.7758318781852722, "answer_score": 0.509307849407196, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "CHE-2026-08-3896-Q002", "text": "Type 2 chemical tanker construction details?", "family": "Cargo Ops - Tankers", "subtopic": "Chemical Tanker Code (BCH/IBC)", "tid": "CHE-2026-08-3896", "tray": "review", "candidates": [ { "answer_id": "COT-04", "score": 0.7128407955169678, "sibling_score": 0.7128407955169678, "answer_score": 0.544455760717392, "sibling_qid": "KOL-2023-08-0761-Q002", "sibling_text": "chemical tanker construction type of chemical", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Chemical-tanker midship section and cargo-tank construction", "cross_family": false }, { "answer_id": "BCH-IBC-A-001", "score": 0.7035191059112549, "sibling_score": 0.7035191059112549, "answer_score": null, "sibling_qid": "KOL-2018-09-0216-Q001", "sibling_text": "type of chemical tankers type 1 2 3 constructional details", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Type 1, Type 2 and Type 3 chemical tankers — the ship-type classification", "cross_family": false }, { "answer_id": "COT-02", "score": 0.687863826751709, "sibling_score": 0.687863826751709, "answer_score": 0.5193985879421233, "sibling_qid": "CHE-2026-09-3928-Q006", "sibling_text": "construction between oil tanker and chemical tanker", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Oil tanker versus chemical tanker construction", "cross_family": false } ] }, { "qid": "CHE-2026-08-3896-Q008", "text": "What are measures to take to reduce CII rating from E TO C?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "CII / Carbon Intensity", "tid": "CHE-2026-08-3896", "tray": "new", "candidates": [ { "answer_id": "CII-RATE-P02-002", "score": 0.5924876928329468, "sibling_score": 0.5924876928329468, "answer_score": 0.4143816724419594, "sibling_qid": "MUM-2023-11-0149-Q008", "sibling_text": "cii and ratings what to do if you get c rating will you improve or let it be", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "2. Corrective action when the ship is rated D or E", "cross_family": false }, { "answer_id": "CII-RATE-P02-001", "score": 0.5776798129081726, "sibling_score": 0.5776798129081726, "answer_score": null, "sibling_qid": "MUM-2025-09-1185-Q002", "sibling_text": "cii how to improve different rating", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "1. The CII rating scale A to E — what each rating means", "cross_family": false }, { "answer_id": "CII-P01-001", "score": 0.5601179599761963, "sibling_score": 0.5601179599761963, "answer_score": null, "sibling_qid": "KOC-2023-12-0258-Q009", "sibling_text": "cii objective how to reduce", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is CII and what is its purpose?", "cross_family": false } ] }, { "qid": "CHE-2026-08-3897-Q001", "text": "type of ship? Written results ?Last exam time question?", "family": "Status & Introduction", "subtopic": "LAST ATTEMPT QUESTION ASKED", "tid": "CHE-2026-08-3897", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.7010648846626282, "sibling_score": 0.7010648846626282, "answer_score": null, "sibling_qid": "CHE-2026-01-0101-Q001", "sibling_text": "types of ship done and exam status", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "DUS-P1-02", "score": 0.6168119311332703, "sibling_score": 0.6168119311332703, "answer_score": null, "sibling_qid": "KOL-2025-08-3851-Q006", "sibling_text": "drydock plans rudder checks cross questions what about other written oral exams status told waiting for naval written result to come all other paper cleared", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Plans, drawings and special tools kept ready for drydock — engine-department view", "cross_family": true }, { "answer_id": "AE-CRP-005", "score": 0.6099367737770081, "sibling_score": 0.6099367737770081, "answer_score": null, "sibling_qid": "MUM-2026-01-2903-Q002", "sibling_text": "type of engine sailed on written exam conditions", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "CHE-2026-08-3898-Q003", "text": "How GM is reduced due to free surface effect?", "family": "Ship Construction & Stability", "subtopic": "Free Surface Effect", "tid": "CHE-2026-08-3898", "tray": "new", "candidates": [ { "answer_id": "FSE-P03-003", "score": 0.6384938955307007, "sibling_score": 0.6384938955307007, "answer_score": null, "sibling_qid": "KOL-2019-10-0329-Q002", "sibling_text": "for free surface effect we know the change in virtual gm why", "sibling_family": "", "via": "sibling", "answer_title": "3. Formula, factors and calculation", "cross_family": false }, { "answer_id": "FSE-P02-001", "score": 0.6384606957435608, "sibling_score": 0.6384606957435608, "answer_score": 0.5046204209327697, "sibling_qid": "KOC-2024-10-0423-Q007", "sibling_text": "free surface effect and draw the reduction of gm and gz w r t fse", "sibling_family": "", "via": "sibling", "answer_title": "Reducing and correcting free surface effect in practice", "cross_family": false }, { "answer_id": "FSE-P03-002", "score": 0.588767409324646, "sibling_score": 0.588767409324646, "answer_score": 0.42673250436782834, "sibling_qid": "KOC-2024-09-0417-Q006", "sibling_text": "free surface effect draw and explain what happens to gz gm", "sibling_family": "", "via": "sibling", "answer_title": "2. Effect on ship stability — GM, GZ and centre of gravity", "cross_family": false } ] }, { "qid": "CHE-2026-08-3899-Q004", "text": " Intrinsically and extrinsically safe EXD EXI Explain?", "family": "Electrical - Motors & Starters", "subtopic": "IP Rating / Enclosure", "tid": "CHE-2026-08-3899", "tray": "new", "candidates": [ { "answer_id": "EXD-EXI-A-001", "score": 0.5320494771003723, "sibling_score": 0.5320494771003723, "answer_score": 0.3838790118694305, "sibling_qid": "MUM-2026-07-3777-Q001", "sibling_text": "ex i and ex d", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Ex i (intrinsically safe) vs Ex d (flameproof / explosion-proof) — the difference", "cross_family": false }, { "answer_id": "EXD-EXI-A-002", "score": 0.5132977962493896, "sibling_score": 0.5132977962493896, "answer_score": null, "sibling_qid": "KOC-2025-05-2064-Q007", "sibling_text": "ex i and exd", "sibling_family": "", "via": "sibling", "answer_title": "Ex d (flameproof / explosion-proof) — construction, shipboard applications and maintenance", "cross_family": false }, { "answer_id": "HAZ-EX-B-001", "score": 0.5050402283668518, "sibling_score": 0.5050402283668518, "answer_score": 0.3664697647094726, "sibling_qid": "KOL-2022-09-2606-Q003", "sibling_text": "intrinsic safe meaning", "sibling_family": "", "via": "sibling", "answer_title": "Intrinsically safe (Ex i) equipment — what it is, how it works, where it is used, how you identify it", "cross_family": false } ] }, { "qid": "CHE-2026-08-3899-Q005", "text": "How circuit connection made for lighting and fan safety in pump room?", "family": "Cargo Ops - Tankers", "subtopic": "Pump Room Safety", "tid": "CHE-2026-08-3899", "tray": "review", "candidates": [ { "answer_id": "PR-SAFE-A-004", "score": 0.6578704714775085, "sibling_score": 0.6578704714775085, "answer_score": 0.5155470639467239, "sibling_qid": "MUM-2023-09-1401-Q005", "sibling_text": "pump room safety eo opened up the light what checks to be made is gasket provided in it", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Pump-room electrical safety, lighting and portable equipment", "cross_family": false }, { "answer_id": "PR-SAFE-A-003", "score": 0.6498754620552063, "sibling_score": 0.6498754620552063, "answer_score": null, "sibling_qid": "KOC-2023-12-1314-Q007", "sibling_text": "pump room safeties lighting and ventilation inter lock", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Pump-room ventilation requirements and interlocks", "cross_family": false }, { "answer_id": "EXD-EXI-A-002", "score": 0.610124945640564, "sibling_score": 0.610124945640564, "answer_score": null, "sibling_qid": "KOL-2022-01-2529-Q004", "sibling_text": "flame proof equipment denotion special protection of circuit in pump room", "sibling_family": "", "via": "sibling", "answer_title": "Ex d (flameproof / explosion-proof) — construction, shipboard applications and maintenance", "cross_family": false } ] }, { "qid": "CHE-2026-08-3899-Q011", "text": "When we start AE voltage going up slowly what is the process happening inside?", "family": "Automation & Controls", "subtopic": "Temperature / Pressure / Level Sensor", "tid": "CHE-2026-08-3899", "tray": "new", "candidates": [ { "answer_id": "RES-MAG-005", "score": 0.5130360126495361, "sibling_score": 0.5130360126495361, "answer_score": 0.39986612200737, "sibling_qid": "MUM-2022-10-1361-Q006", "sibling_text": "initialy avr not in function how voltage developing", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "How voltage builds up when the AVR is not yet in function and no power is available", "cross_family": true }, { "answer_id": "BAT-CHG-005", "score": 0.4810703992843628, "sibling_score": 0.4810703992843628, "answer_score": null, "sibling_qid": "MUM-2026-04-2117-Q008", "sibling_text": "while battery charging what happens to current and voltage from starting to ending", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "Battery charging modes/methods, and current-voltage behaviour during a charge", "cross_family": true }, { "answer_id": "AVR-EXC-E-001", "score": 0.47008973360061646, "sibling_score": 0.47008973360061646, "answer_score": null, "sibling_qid": "KOC-2025-12-0745-Q005", "sibling_text": "types of avr explain static avr how does voltage build up in a generator which has just started i said residual magnetism he accepted", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "How does a static AVR / static excitation system work? (draw & explain)", "cross_family": true } ] }, { "qid": "CHE-2026-08-3900-Q004", "text": "what is frame ,transverse, longitude construction?", "family": "Drydock & Underwater Surveys", "subtopic": "Stern Tube / Tail Shaft", "tid": "CHE-2026-08-3900", "tray": "new", "candidates": [ { "answer_id": "KGF-A-006", "score": 0.5637069940567017, "sibling_score": 0.5637069940567017, "answer_score": 0.4546052753925323, "sibling_qid": "KOL-2021-08-0541-Q005", "sibling_text": "what is framing types of framing longitudinal where used transverse where used", "sibling_family": "", "via": "sibling", "answer_title": "Longitudinal & transverse framing systems", "cross_family": false }, { "answer_id": "FLR-WFB-P01-006", "score": 0.5507018566131592, "sibling_score": 0.5507018566131592, "answer_score": 0.4139778301119804, "sibling_qid": "KOL-2020-10-0428-Q004", "sibling_text": "what is frames explain longitudinal and transvers frame web frame where fitted", "sibling_family": "", "via": "sibling", "answer_title": "Web frames — what they are, where situated, how they give transverse strength", "cross_family": false }, { "answer_id": "DUS-P5-03", "score": 0.44843029975891113, "sibling_score": 0.44843029975891113, "answer_score": null, "sibling_qid": "KOC-2021-10-0031-Q004", "sibling_text": "stern frame construction", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Stern frame construction, cross-section and rudder-axis sketch", "cross_family": false } ] }, { "qid": "CHE-2026-08-3900-Q006", "text": "Difference b/w life boat CO2 and extinguisher CO2 ?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Lifeboat", "tid": "CHE-2026-08-3900", "tray": "new", "candidates": [ { "answer_id": "SOLAS-CH-015", "score": 0.600630521774292, "sibling_score": 0.600630521774292, "answer_score": null, "sibling_qid": "KOC-2025-10-0694-Q002", "sibling_text": "solas regulations lifeboat co2 emergency fire pump", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS chapters overview - current count and scope", "cross_family": true }, { "answer_id": "FEXT-583-001", "score": 0.5936993956565857, "sibling_score": 0.5936993956565857, "answer_score": null, "sibling_qid": "KOC-2026-04-0893-Q009", "sibling_text": "difference between co2 and dcp extinguisher", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Types of portable fire extinguishers carried on board, their capacities and their advantages", "cross_family": true }, { "answer_id": "DRG-583-A-001", "score": 0.5726856589317322, "sibling_score": 0.5726856589317322, "answer_score": null, "sibling_qid": "KOL-2023-05-2653-Q003", "sibling_text": "different method for release of life lifeboat", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "On-load and off-load release: what each one is, and why both are fitted", "cross_family": false } ] }, { "qid": "CHE-2026-08-3900-Q009", "text": "Relief valve test procedure in Co2 system?", "family": "SOLAS - Fire Safety", "subtopic": "CO2 System", "tid": "CHE-2026-08-3900", "tray": "review", "candidates": [ { "answer_id": "CO2-SYS-002", "score": 0.7448627352714539, "sibling_score": 0.7448627352714539, "answer_score": null, "sibling_qid": "KOC-2024-01-0279-Q005", "sibling_text": "co2 maintenance 2 5 10 x question relief valve pressure testing pressure hydrostatically test pressure", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 maintenance, inspection, testing and survey routines", "cross_family": false }, { "answer_id": "CO2-SYS-005", "score": 0.7166680693626404, "sibling_score": 0.7166680693626404, "answer_score": null, "sibling_qid": "KOC-2025-05-2065-Q004", "sibling_text": "why co2 relief valve fitted and test pressure", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 system safeties, CO2-room requirements, alarms and ventilation", "cross_family": false }, { "answer_id": "CC-RELIEF-312-001", "score": 0.4986014425754547, "sibling_score": null, "answer_score": 0.4986014425754547, "sibling_qid": "", "sibling_text": "testing a crankcase relief valve relief door and the pressure setting it is a light quick acting self closing relief valve with a flame arrester not a boiler type safety valve testing is a condition and function check never a pressure rig test of the crankcase safe set up first engine stopped turning gear engaged starting air shut and vented lo pumps off and breakered men at work board crankcase v", "sibling_family": "", "via": "answer_title", "answer_title": "Testing a crankcase relief valve / relief door — and the pressure setting", "cross_family": false } ] }, { "qid": "CHE-2026-08-3900-Q015", "text": "T/c matching how we do ?", "family": "Drydock & Underwater Surveys", "subtopic": "Shaft Alignment", "tid": "CHE-2026-08-3900", "tray": "new", "candidates": [ { "answer_id": "TCS-059-P04-013", "score": 0.562888503074646, "sibling_score": 0.562888503074646, "answer_score": 0.2520097479224205, "sibling_qid": "KOL-2025-07-1812-Q002", "sibling_text": "t c matching and balancing in details", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharger matching and balancing", "cross_family": true }, { "answer_id": "TC-CONST-001", "score": 0.4647451937198639, "sibling_score": 0.4647451937198639, "answer_score": null, "sibling_qid": "MUM-2025-12-1227-Q007", "sibling_text": "t c on ae", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharger types, series names, and ME/AE arrangements", "cross_family": true }, { "answer_id": "TURBO-CS-P02-008", "score": 0.4604201316833496, "sibling_score": 0.4604201316833496, "answer_score": null, "sibling_qid": "KOL-2019-11-1494-Q001", "sibling_text": "hybrid t c", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Hybrid turbocharger", "cross_family": true } ] }, { "qid": "CHE-2026-08-3900-Q017", "text": "What is MEP? what limits the MEP ?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "MEP / IMEP / MIP", "tid": "CHE-2026-08-3900", "tray": "new", "candidates": [ { "answer_id": "IND-CARD-004", "score": 0.5542817115783691, "sibling_score": 0.5542817115783691, "answer_score": null, "sibling_qid": "MUM-2022-09-1022-Q005", "sibling_text": "what is mep significance", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "How are MEP, diagram area and engine power calculated from indicator-card data?", "cross_family": false }, { "answer_id": "MIP-264-001", "score": 0.5458934903144836, "sibling_score": 0.5458934903144836, "answer_score": 0.3480139017105102, "sibling_qid": "CHE-2025-12-0229-Q006", "sibling_text": "what is mep and its significance", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Define MEP / IMEP / MIP and their significance", "cross_family": false }, { "answer_id": "MIP-264-006", "score": 0.5146045088768005, "sibling_score": 0.5146045088768005, "answer_score": null, "sibling_qid": "CHE-2026-02-0247-Q009", "sibling_text": "what will be achieved by increasing mep", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Increasing engine power / MEP, and what increasing MEP achieves", "cross_family": false } ] }, { "qid": "CHE-2026-09-3901-Q001", "text": "When did u cleared write exam?", "family": "Status & Introduction", "subtopic": "", "tid": "CHE-2026-09-3901", "tray": "new", "candidates": [ { "answer_id": "DUS-P1-02", "score": 0.47085410356521606, "sibling_score": 0.47085410356521606, "answer_score": null, "sibling_qid": "KOL-2025-08-3851-Q006", "sibling_text": "drydock plans rudder checks cross questions what about other written oral exams status told waiting for naval written result to come all other paper cleared", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Plans, drawings and special tools kept ready for drydock — engine-department view", "cross_family": true }, { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.4575275182723999, "sibling_score": 0.4575275182723999, "answer_score": null, "sibling_qid": "MUM-2026-01-1252-Q001", "sibling_text": "status of results oral written exam", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": true }, { "answer_id": "EXHV-P01-001", "score": 0.44110918045043945, "sibling_score": 0.44110918045043945, "answer_score": null, "sibling_qid": "CHE-2026-01-0101-Q001", "sibling_text": "types of ship done and exam status", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false } ] }, { "qid": "CHE-2026-09-3901-Q002", "text": "Tell me all the questions u have written to pass the written?", "family": "Status & Introduction", "subtopic": "", "tid": "CHE-2026-09-3901", "tray": "new", "candidates": [ { "answer_id": "TNK-SAFE-BF26-003", "score": 0.5354286432266235, "sibling_score": 0.5354286432266235, "answer_score": null, "sibling_qid": "CHE-2026-02-0340-Q001", "sibling_text": "what type of vessel sailed what about electrical writing have you sailed on tankers before", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "What safeties, including electrical safeties and Ex ratings, are provided on the deck of a tanker?", "cross_family": false }, { "answer_id": "PIST-CSI-B-001", "score": 0.5134721994400024, "sibling_score": 0.5134721994400024, "answer_score": null, "sibling_qid": "CHE-2026-08-3897-Q011", "sibling_text": "any important troubleshooting in your career internal ques", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main-engine piston — construction and the checks expected", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.5109310150146484, "sibling_score": 0.5109310150146484, "answer_score": null, "sibling_qid": "MUM-2026-03-0866-Q001", "sibling_text": "coc attempt internal sirish sir external vishwanathan iyer sir started with what function you are applying how many ships type of ships you did after class 4 pre sea from where how many written cleared what about other functions", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false } ] }, { "qid": "CHE-2026-09-3901-Q005", "text": "why expansion is required?", "family": "Refrigeration & AC", "subtopic": "TEV / TXV", "tid": "CHE-2026-09-3901", "tray": "new", "candidates": [ { "answer_id": "FOAM-032-P03-002", "score": 0.5712899565696716, "sibling_score": 0.5712899565696716, "answer_score": null, "sibling_qid": "MUM-2026-03-0813-Q012", "sibling_text": "why not high expansion", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "High-expansion foam generator / nozzle arrangement — draw and explain", "cross_family": true }, { "answer_id": "FOAM-SYS-P04-004", "score": 0.5106077790260315, "sibling_score": 0.5106077790260315, "answer_score": 0.3068156510591507, "sibling_qid": "CHE-2026-05-0586-Q020", "sibling_text": "why low expansion using in deck", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "3. Why low-expansion foam on deck, not high-expansion", "cross_family": true }, { "answer_id": "FOAM-P02-001", "score": 0.5013750791549683, "sibling_score": 0.5013750791549683, "answer_score": null, "sibling_qid": "MUM-2026-05-3157-Q008S3", "sibling_text": "why low expansion on deck", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Draw and explain the fixed deck foam firefighting system used on a tanker.", "cross_family": true } ] }, { "qid": "CHE-2026-09-3901-Q006", "text": "How shaft power is displayed in the monitor in ECR?", "family": "Automation & Controls", "subtopic": "Condition Monitoring", "tid": "CHE-2026-09-3901", "tray": "new", "candidates": [ { "answer_id": "RES-PROP-P02-004", "score": 0.5993274450302124, "sibling_score": 0.5993274450302124, "answer_score": 0.4069837987422943, "sibling_qid": "KOC-2026-05-0029-Q010", "sibling_text": "shaft power meter working", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Ship power definitions and estimation — effective, delivered, shaft and indicated power", "cross_family": true }, { "answer_id": "SHAFT-GEN-002", "score": 0.5433782935142517, "sibling_score": 0.5433782935142517, "answer_score": null, "sibling_qid": "KOC-2026-05-2134-Q011", "sibling_text": "what is shaft voltage", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Holding constant voltage and frequency when main-engine RPM varies", "cross_family": false }, { "answer_id": "ALT-GEN-P04-001", "score": 0.5135142803192139, "sibling_score": 0.5135142803192139, "answer_score": null, "sibling_qid": "KOL-2019-10-2341-Q005", "sibling_text": "shaft generator working", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Shaft generator - working and arrangement", "cross_family": true } ] }, { "qid": "CHE-2026-09-3901-Q007", "text": "MAINTENANCE FROM FUNNEL FLAP TO PROPELLER?", "family": "Auxiliary Equipment", "subtopic": "FUNNEL FLAPS", "tid": "CHE-2026-09-3901", "tray": "review", "candidates": [ { "answer_id": "QCV-003", "score": 0.6543223857879639, "sibling_score": 0.6543223857879639, "answer_score": null, "sibling_qid": "KOL-2017-08-0105-Q005", "sibling_text": "maintenance done on funnel flaps and vents during saturday routines when to test quickclosing valves regulation", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Quick closing valve — overhaul, maintenance and testing", "cross_family": false }, { "answer_id": "PROP-PN-C-005", "score": 0.6133841872215271, "sibling_score": 0.6133841872215271, "answer_score": 0.44891824722290036, "sibling_qid": "KOL-2025-10-4065-Q006", "sibling_text": "contidion based maintenance of propeller", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Condition-based maintenance of propeller and tailshaft", "cross_family": true }, { "answer_id": "PROP-PN-C-003", "score": 0.6089769005775452, "sibling_score": 0.6089769005775452, "answer_score": null, "sibling_qid": "KOL-2021-07-1602-Q011", "sibling_text": "checks on propeller", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Drydock propeller inspection — checks and repairs", "cross_family": true } ] }, { "qid": "CHE-2026-09-3901-Q008", "text": "STERN TUBE BEARING MAINTENANCE?", "family": "Shafting, Propeller & Rudder", "subtopic": "Stern Tube / Tail Shaft Bearings", "tid": "CHE-2026-09-3901", "tray": "review", "candidates": [ { "answer_id": "STT-BRG-003", "score": 0.7880352139472961, "sibling_score": 0.7880352139472961, "answer_score": null, "sibling_qid": "KOL-2017-10-1327-Q003", "sibling_text": "stern tube bearing lubrication for ballast voyage aft and fwd seal checking", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "2. Stern tube seals — lip, radial-face and simplex arrangement (oil and air)", "cross_family": false }, { "answer_id": "STT-BRG-008", "score": 0.7849279046058655, "sibling_score": 0.7849279046058655, "answer_score": 0.5758927911520004, "sibling_qid": "KOC-2023-10-0985-Q011", "sibling_text": "stern tube bearing wear how to check", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "7. Stern tube bearings — number, size, fixing, clearance, weardown and high-temperature", "cross_family": false }, { "answer_id": "STS-P02-005", "score": 0.7530264854431152, "sibling_score": 0.7530264854431152, "answer_score": null, "sibling_qid": "KOL-2025-10-3867-Q005", "sibling_text": "stern tube bearing checks done", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "STS-P02-05 - Tail shaft removal, drydock inspection and pre-flooding checks", "cross_family": true } ] }, { "qid": "CHE-2026-09-3901-Q012", "text": "SCRUBBER PIPE OB PIPE IS LEAKING NEAR OB HOW WHAT U LL DO AS SECOND ENGINEER", "family": "Workshop & Welding", "subtopic": "Welding / Brazing / Soldering", "tid": "CHE-2026-09-3901", "tray": "new", "candidates": [ { "answer_id": "PIPEFAB-009", "score": 0.6349306702613831, "sibling_score": 0.6349306702613831, "answer_score": null, "sibling_qid": "KOC-2022-11-1796-Q006", "sibling_text": "sea water pipe leaking what action as 2nd engr no cold and no hot work", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "A seawater or fire line is leaking / thinned down — action as 2/E, valve not holding, no hot work possible", "cross_family": false }, { "answer_id": "PIPEFAB-011", "score": 0.6299470067024231, "sibling_score": 0.6299470067024231, "answer_score": null, "sibling_qid": "CHE-2026-09-3927-Q007", "sibling_text": "gi pipe and how will you carry out repair", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Explain the repair procedure for a GI or GRP pipe, including welding a GI pipe", "cross_family": false }, { "answer_id": "PIPEFAB-001", "score": 0.6204780340194702, "sibling_score": 0.6204780340194702, "answer_score": null, "sibling_qid": "MUM-2026-01-2544-Q001", "sibling_text": "a sea water pipe has leak and read to be fabricated with same old flanges how will you guide fitter to carry out the job", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "A damaged pipe has been removed — fabricate the new one: profiling an uneven/bent section and the instructions you give the 3/E or fitter", "cross_family": false } ] }, { "qid": "CHE-2026-09-3901-Q013", "text": "Scavenge space risk assessments?", "family": "Other Conventions", "subtopic": "Ballast Water Convention / BWM / BWMS", "tid": "CHE-2026-09-3901", "tray": "new", "candidates": [ { "answer_id": "SCAV-323-P02-005", "score": 0.5597982406616211, "sibling_score": 0.5597982406616211, "answer_score": null, "sibling_qid": "KOC-2026-01-1991-Q001", "sibling_text": "scavenge space inspection", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Scavenge-space inspection: preparation, checks and findings", "cross_family": true }, { "answer_id": "SCAV-323-P01-001", "score": 0.5301045775413513, "sibling_score": 0.5301045775413513, "answer_score": null, "sibling_qid": "KOC-2023-03-1811-Q006", "sibling_text": "scavenge space fire", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Scavenge fire in the main engine — your actions", "cross_family": true }, { "answer_id": "SCAV-323-P01-005", "score": 0.5156673192977905, "sibling_score": 0.5156673192977905, "answer_score": null, "sibling_qid": "MUM-2025-05-1118-Q003", "sibling_text": "after scavenge space fire what all checks you will do", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Post-fire checks before restarting and loading", "cross_family": true } ] }, { "qid": "CHE-2026-09-3902-Q001", "text": "written and oral status?", "family": "Status & Introduction", "subtopic": "", "tid": "CHE-2026-09-3902", "tray": "review", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.7125003933906555, "sibling_score": 0.7125003933906555, "answer_score": null, "sibling_qid": "MUM-2026-05-3187-Q001", "sibling_text": "status of other orals and written", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": true }, { "answer_id": "EXHV-P01-001", "score": 0.6236682534217834, "sibling_score": 0.6236682534217834, "answer_score": null, "sibling_qid": "MUM-2026-05-2995-Q001", "sibling_text": "written and oral status type of ship and company", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.49651435017585754, "sibling_score": 0.49651435017585754, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q001", "sibling_text": "type of vessel engine make written and oral status", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "CHE-2026-09-3902-Q005", "text": "Motor starting scenario in way of electrically same time in MSB and alternator what all will change what all will happen?", "family": "Electrical - Motors & Starters", "subtopic": "DC Motor / Commutator", "tid": "CHE-2026-09-3902", "tray": "new", "candidates": [ { "answer_id": "SPH-A-008", "score": 0.6206645369529724, "sibling_score": 0.6206645369529724, "answer_score": null, "sibling_qid": "KOL-2016-10-2075-Q005", "sibling_text": "one motor opened for overhaul standby motor u r starting sparks from terminal box what u ll do u have to run d motor as it is very essential", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "One wire in the terminal box of the auxiliary blower is found heated. What may be the problem?", "cross_family": false }, { "answer_id": "CONT-317-003", "score": 0.6134536862373352, "sibling_score": 0.6134536862373352, "answer_score": null, "sibling_qid": "MUM-2026-03-2019-Q001", "sibling_text": "motor came after rewinding no all terminals signs erased ho will you connect one generator losing power and other gaining power what is the reason bus bar shorcircuited but short circuit trip didn t activate what will happen now ip 55", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Continuity to confirm terminal identity after overhaul or rewind", "cross_family": false }, { "answer_id": "STR-DEC-A-001", "score": 0.611463189125061, "sibling_score": 0.611463189125061, "answer_score": null, "sibling_qid": "KOL-2025-09-2869-Q006", "sibling_text": "types of motor starter ur ship what happens during starting means current characteristics", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false } ] }, { "qid": "CHE-2026-09-3902-Q007", "text": " PMS FUNCTIONS AND FEEDER RESULTS?", "family": "Automation & Controls", "subtopic": "Alarm & Monitoring System", "tid": "CHE-2026-09-3902", "tray": "new", "candidates": [ { "answer_id": "PID-CTRL-001", "score": 0.5006442666053772, "sibling_score": 0.5006442666053772, "answer_score": null, "sibling_qid": "KOC-2026-05-2128-Q008", "sibling_text": "pms explain", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "What a PID controller is and how it works", "cross_family": false }, { "answer_id": "PMS-392-002", "score": 0.442848265171051, "sibling_score": 0.442848265171051, "answer_score": null, "sibling_qid": "KOL-2020-11-1561-Q011", "sibling_text": "pms as per ism code", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "How is PMS linked with the ISM Code and SOLAS maintenance requirements?", "cross_family": true }, { "answer_id": "AUC-ALM-02", "score": 0.43772047758102417, "sibling_score": 0.43772047758102417, "answer_score": null, "sibling_qid": "CHE-2026-04-0372-Q007", "sibling_text": "pms ias", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Explain the architecture and common functions of an integrated shipboard automation, monitoring and alarm system, including PMS/IAS interfaces and a representative alarm circuit.", "cross_family": false } ] }, { "qid": "CHE-2026-09-3903-Q003", "text": "Crank shaft deflection ? how to identify without readings?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft Deflection", "tid": "CHE-2026-09-3903", "tray": "review", "candidates": [ { "answer_id": "CSD-BF036-003", "score": 0.7439847588539124, "sibling_score": 0.7439847588539124, "answer_score": null, "sibling_qid": "MUM-2025-12-2901-Q010", "sibling_text": "crankshaft deflection results how to verify", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "A 3/E has handed you the deflection readings — how do you verify they were taken correctly?", "cross_family": false }, { "answer_id": "CRK-DEFL-002", "score": 0.7306978106498718, "sibling_score": 0.7306978106498718, "answer_score": null, "sibling_qid": "KOC-2025-03-2061-Q014", "sibling_text": "how to take crankshaft deflection internal no questions", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Taking the readings: gauge, positions and precautions", "cross_family": false }, { "answer_id": "CSD-BF036-005", "score": 0.7289809584617615, "sibling_score": 0.7289809584617615, "answer_score": null, "sibling_qid": "MUM-2023-08-1055-Q001", "sibling_text": "you have crank shaft deflection reading what will you do after that", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "You have the deflection readings — how do you interpret them for bearing condition, and what do you do next?", "cross_family": false } ] }, { "qid": "CHE-2026-09-3903-Q005", "text": "Lubricity unit? what is acceptable range?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "LO Test / Analysis", "tid": "CHE-2026-09-3903", "tray": "new", "candidates": [ { "answer_id": "LO-TEST-P02-001", "score": 0.6354017853736877, "sibling_score": 0.6354017853736877, "answer_score": null, "sibling_qid": "CHE-2025-08-0208-Q002", "sibling_text": "what is lubricity unit max value and formula", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Lube-oil additives; detergency, dispersancy, lubricity and friction modifiers", "cross_family": false }, { "answer_id": "LO-TEST-P01-004", "score": 0.5445244908332825, "sibling_score": 0.5445244908332825, "answer_score": null, "sibling_qid": "KOC-2022-07-2031-Q007", "sibling_text": "lub oil properties viscosity index tbn sweep test", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "TBN, BN, TAN, SAN and the SAE grade", "cross_family": false }, { "answer_id": "HYDRO-LUB-002", "score": 0.5351822972297668, "sibling_score": 0.5351822972297668, "answer_score": null, "sibling_qid": "KOC-2026-02-1099-Q005", "sibling_text": "hydrodynamic lubrication figure", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "2. Hydrodynamic lubrication & oil-wedge formation", "cross_family": false } ] }, { "qid": "CHE-2026-09-3904-Q003", "text": "green house potential?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "GHG / Greenhouse", "tid": "CHE-2026-09-3904", "tray": "review", "candidates": [ { "answer_id": "GHG-591-001", "score": 0.6592803597450256, "sibling_score": 0.6592803597450256, "answer_score": 0.440982449054718, "sibling_qid": "CHE-2026-09-3920-Q013", "sibling_text": "green houses definition and gas under it", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is a greenhouse gas, which gases are they, and what is the greenhouse effect?", "cross_family": false }, { "answer_id": "AV6-P04-01", "score": 0.6080261468887329, "sibling_score": 0.6080261468887329, "answer_score": 0.40486683100461957, "sibling_qid": "MUM-2026-05-3203-Q002", "sibling_text": "global warming potential", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Define Global Warming Potential and Ozone Depletion Potential; give the reference bases, meaning of a stated value, and the time-horizon and equal-mass points examiners drill.", "cross_family": false }, { "answer_id": "GFI-572-001", "score": 0.6065259575843811, "sibling_score": 0.6065259575843811, "answer_score": 0.39320738464593885, "sibling_qid": "MUM-2026-05-3263-Q005", "sibling_text": "greenhouse gas intensity calculations", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is GFI (Greenhouse Gas Fuel Intensity) under MARPOL Annex VI?", "cross_family": false } ] }, { "qid": "CHE-2026-09-3904-Q004", "text": "pilot ladder integrity test?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Pilot Ladder / Transfer", "tid": "CHE-2026-09-3904", "tray": "new", "candidates": [ { "answer_id": "LBT-TEST-B-003", "score": 0.5341979265213013, "sibling_score": 0.5341979265213013, "answer_score": null, "sibling_qid": "KOC-2024-12-0488-Q004", "sibling_text": "lifeboat load test he didn t accept static and dynamic test where you got this 1 1 and 1 5 he was asking about brake test falls test 6 davit test 4 5 and davit foundation test he accepted 6 and 4 5 times load test", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Winch/davit brake test — static vs dynamic, holding capacity, slippage", "cross_family": false }, { "answer_id": "LBT-TEST-B-001", "score": 0.5280887484550476, "sibling_score": 0.5280887484550476, "answer_score": null, "sibling_qid": "KOC-2026-05-2131-Q006", "sibling_text": "tests in lifeboat davits explain dynamic test how much is the proof load how it is loaded", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat/davit load-test proof loads and test conditions", "cross_family": false }, { "answer_id": "LBT-TEST-B-004", "score": 0.5231025815010071, "sibling_score": 0.5231025815010071, "answer_score": null, "sibling_qid": "KOC-2024-02-0305-Q009", "sibling_text": "int what are the tests done on life boat davits", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Tests carried out on the lifeboat/davit onboard (overview)", "cross_family": false } ] }, { "qid": "CHE-2026-09-3905-Q001", "text": "Pump room SOLAS regulation?", "family": "Cargo Ops - Tankers", "subtopic": "Pump Room Safety", "tid": "CHE-2026-09-3905", "tray": "review", "candidates": [ { "answer_id": "PUMPRM-B-002", "score": 0.7415245175361633, "sibling_score": 0.7415245175361633, "answer_score": 0.5158300220966339, "sibling_qid": "KOL-2026-09-4307-Q004", "sibling_text": "pump room regulation as per solas", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Pump-room regulatory and construction requirements", "cross_family": false }, { "answer_id": "PUMPRM-B-004", "score": 0.6366701722145081, "sibling_score": 0.6366701722145081, "answer_score": null, "sibling_qid": "CHE-2021-06-0508-Q011", "sibling_text": "pump room safety requirement", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Safeties provided in a cargo pump room", "cross_family": false }, { "answer_id": "PR-SAFE-A-003", "score": 0.6311255097389221, "sibling_score": 0.6311255097389221, "answer_score": 0.49844869077205656, "sibling_qid": "KOC-2023-12-1314-Q007", "sibling_text": "pump room safeties lighting and ventilation inter lock", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Pump-room ventilation requirements and interlocks", "cross_family": false } ] }, { "qid": "CHE-2026-09-3905-Q004", "text": "pilot ladder integrity test?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Pilot Ladder / Transfer", "tid": "CHE-2026-09-3905", "tray": "new", "candidates": [ { "answer_id": "LBT-TEST-B-003", "score": 0.5341979265213013, "sibling_score": 0.5341979265213013, "answer_score": null, "sibling_qid": "KOC-2024-12-0488-Q004", "sibling_text": "lifeboat load test he didn t accept static and dynamic test where you got this 1 1 and 1 5 he was asking about brake test falls test 6 davit test 4 5 and davit foundation test he accepted 6 and 4 5 times load test", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Winch/davit brake test — static vs dynamic, holding capacity, slippage", "cross_family": false }, { "answer_id": "LBT-TEST-B-001", "score": 0.5280887484550476, "sibling_score": 0.5280887484550476, "answer_score": null, "sibling_qid": "KOC-2026-05-2131-Q006", "sibling_text": "tests in lifeboat davits explain dynamic test how much is the proof load how it is loaded", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat/davit load-test proof loads and test conditions", "cross_family": false }, { "answer_id": "LBT-TEST-B-004", "score": 0.5231025815010071, "sibling_score": 0.5231025815010071, "answer_score": null, "sibling_qid": "KOC-2024-02-0305-Q009", "sibling_text": "int what are the tests done on life boat davits", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Tests carried out on the lifeboat/davit onboard (overview)", "cross_family": false } ] }, { "qid": "CHE-2026-09-3905-Q005", "text": "Is your ship is provided with insulation for a hot tank. Tell about SOLAS regulation?", "family": "SOLAS - General (HOLD)", "subtopic": "Solas Chapters Overview", "tid": "CHE-2026-09-3905", "tray": "new", "candidates": [ { "answer_id": "UMS-310-003", "score": 0.5999436378479004, "sibling_score": 0.5999436378479004, "answer_score": null, "sibling_qid": "KOL-2018-08-0203-Q002", "sibling_text": "in ums ship fire protection provided for me n boiler and on tank top n clearance space between bilge wells", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Machinery and fire-safety features required for the UMS condition", "cross_family": true }, { "answer_id": "INS-CLASS-003", "score": 0.5828560590744019, "sibling_score": 0.5828560590744019, "answer_score": null, "sibling_qid": "KOL-2018-12-2247-Q006", "sibling_text": "type of insulation which machinery on ur ship having highest insulation if u tell steering gear motor he will be satisfied", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Which motor or machinery on your ship has the highest insulation class, and why?", "cross_family": true }, { "answer_id": "CABLE-INS-E-002", "score": 0.5673683285713196, "sibling_score": 0.5673683285713196, "answer_score": null, "sibling_qid": "KOL-2017-10-2155-Q001", "sibling_text": "type of insulation in tanker", "sibling_family": "", "via": "sibling", "answer_title": "Cable for hazardous areas, tanker pump rooms and deck", "cross_family": false } ] }, { "qid": "CHE-2026-09-3906-Q002", "text": "Airgap and why airgap and how current transferred? ", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Eddy Current Losses", "tid": "CHE-2026-09-3906", "tray": "new", "candidates": [ { "answer_id": "AIR-GAP-001", "score": 0.4958159327507019, "sibling_score": 0.4958159327507019, "answer_score": 0.37834255695343016, "sibling_qid": "CHE-2026-05-0611-Q004", "sibling_text": "why air gap is there internal", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "AG-1 — The air gap: what it is and why it matters", "cross_family": true }, { "answer_id": "XFMR-THY-D-001", "score": 0.4953252077102661, "sibling_score": 0.4953252077102661, "answer_score": null, "sibling_qid": "KOL-2025-09-2863-Q003", "sibling_text": "transformer induction process and air gap importance", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Transformer — principle and working", "cross_family": false }, { "answer_id": "AIR-GAP-003", "score": 0.49301856756210327, "sibling_score": 0.49301856756210327, "answer_score": null, "sibling_qid": "KOC-2026-04-1743-Q005", "sibling_text": "air gap and cross like reason if gap reduced and increased", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "AG-3 — Effects, causes, indications and correction: high, low, uneven, contaminated gap", "cross_family": true } ] }, { "qid": "CHE-2026-09-3906-Q005", "text": "Earth fault system (Cross questions as follows) -How earthing happens -how to test earth -Indications for earth -In what reading earth is denoted and why -define earth fault", "family": "Electrical - Distribution & Earthing", "subtopic": "", "tid": "CHE-2026-09-3906", "tray": "review", "candidates": [ { "answer_id": "EF-DET-P01-001", "score": 0.6767809391021729, "sibling_score": 0.6767809391021729, "answer_score": null, "sibling_qid": "MUM-2026-09-3995-Q003", "sibling_text": "earth fault how it is indicated", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Earth fault / earth leakage — and how it differs from short circuit and open circuit", "cross_family": true }, { "answer_id": "EF-DET-P01-002", "score": 0.6564299464225769, "sibling_score": 0.6564299464225769, "answer_score": 0.5017707258462906, "sibling_qid": "CHE-2026-04-0369-Q006", "sibling_text": "how the earth fault system is working what you check in the ohm meter if value shows what do you do what happened if you press the test switch", "sibling_family": "", "via": "sibling", "answer_title": "How an earth fault is detected and indicated on board", "cross_family": false }, { "answer_id": "EF-DET-P01-003", "score": 0.6450029611587524, "sibling_score": 0.6450029611587524, "answer_score": null, "sibling_qid": "KOL-2017-03-2116-Q001", "sibling_text": "how to find earth faults where earth fault indicator located", "sibling_family": "", "via": "sibling", "answer_title": "Tracing and locating an earth fault or low-insulation fault on a 440V / 220V / deck circuit", "cross_family": false } ] }, { "qid": "CHE-2026-09-3906-Q006", "text": "Neutral System-Explaim full -Why neutral and what system in your ship and explain what happens in insulated neutral system", "family": "Electrical - High Voltage", "subtopic": "Earthing / Neutral / NER", "tid": "CHE-2026-09-3906", "tray": "review", "candidates": [ { "answer_id": "ENR-P02B-002", "score": 0.6739773750305176, "sibling_score": 0.6739773750305176, "answer_score": 0.6340437054634094, "sibling_qid": "KOL-2022-05-2568-Q003", "sibling_text": "types of earthing systems which was being followed on your ship advantages of insulated neutral system", "sibling_family": "", "via": "sibling", "answer_title": "Insulated / isolated neutral system — continuity, fault behaviour, advantages and disadvantages", "cross_family": false }, { "answer_id": "EARTH-NEU-02A-002", "score": 0.6541318893432617, "sibling_score": 0.6541318893432617, "answer_score": 0.5340475112199783, "sibling_qid": "CHE-2025-10-0308-Q006", "sibling_text": "why insulated earthed neutral used on ship", "sibling_family": "", "via": "sibling", "answer_title": "Insulated neutral vs earthed neutral — how each behaves, where each is used, which is safer", "cross_family": false }, { "answer_id": "ENR-P02B-001", "score": 0.620948314666748, "sibling_score": 0.620948314666748, "answer_score": 0.5768009424209595, "sibling_qid": "KOL-2022-03-2547-Q001", "sibling_text": "neutral system type of neutral system and their advantages on your ship which type of neutral system", "sibling_family": "", "via": "sibling", "answer_title": "Ship’s earthing / distribution system — insulated LV neutral, earthed (Class-approved) HV neutral", "cross_family": false } ] }, { "qid": "CHE-2026-09-3907-Q004", "text": "Why astern speed is not same as ahead and why vibration occurs?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Vibration / Balancing", "tid": "CHE-2026-09-3907", "tray": "new", "candidates": [ { "answer_id": "VIB-BAL-A-001", "score": 0.5844342112541199, "sibling_score": 0.5844342112541199, "answer_score": null, "sibling_qid": "KOL-2019-07-1469-Q001", "sibling_text": "m e astern vibration why and what arrangements to counter it what is all vibrations due to propelller and arrangements", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "VIB-A-01 — Engine vibration — what it is, its types and causes, and how it is controlled", "cross_family": false }, { "answer_id": "RES-PROP-P03-003", "score": 0.5625318288803101, "sibling_score": 0.5625318288803101, "answer_score": null, "sibling_qid": "CHE-2026-04-0153-Q006", "sibling_text": "why ship vibrates much during astern movement", "sibling_family": "", "via": "sibling", "answer_title": "3. Propeller particulars and service symptoms: pitch, skew, PBCF, ballast slapping and astern vibration", "cross_family": false }, { "answer_id": "VIB-BAL-A-002", "score": 0.5503028631210327, "sibling_score": 0.5503028631210327, "answer_score": 0.43193224668502805, "sibling_qid": "KOL-2023-03-1729-Q004", "sibling_text": "vibration cannot be dampened 100percent in engine room why", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "VIB-A-02 — Consequences of excessive engine vibration, why it cannot be eliminated, and how to investigate it", "cross_family": false } ] }, { "qid": "CHE-2026-09-3908-Q004", "text": "Purpose of Nozzle in Fixed CO2?", "family": "SOLAS - Fire Safety", "subtopic": "CO2 System", "tid": "CHE-2026-09-3908", "tray": "new", "candidates": [ { "answer_id": "CO2-SYS-007", "score": 0.6070324778556824, "sibling_score": 0.6070324778556824, "answer_score": 0.39004415571689605, "sibling_qid": "KOL-2017-01-0049-Q004", "sibling_text": "co2 firefighting function of nozzle", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 piping, nozzles, line arrangement and pressure testing", "cross_family": false }, { "answer_id": "CO2-SYS-002", "score": 0.5825546383857727, "sibling_score": 0.5825546383857727, "answer_score": null, "sibling_qid": "MUM-2024-01-0157-Q006", "sibling_text": "co2 system how to check nozzles are clear", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 maintenance, inspection, testing and survey routines", "cross_family": false }, { "answer_id": "CO2-SYS-004", "score": 0.5734192132949829, "sibling_score": 0.5734192132949829, "answer_score": null, "sibling_qid": "KOL-2021-07-0510-Q004", "sibling_text": "co2 head arrangement in fixed co2 system", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fixed CO2 total-flooding system — overview, working and arrangements", "cross_family": false } ] }, { "qid": "CHE-2026-09-3908-Q007", "text": "And what will u do if discharge exceeds 15 PPM in special areas?", "family": "Other Conventions", "subtopic": "EEZ / PSSA / Special Area", "tid": "CHE-2026-09-3908", "tray": "new", "candidates": [ { "answer_id": "OWS-ORB-002", "score": 0.5411766767501831, "sibling_score": 0.5411766767501831, "answer_score": 0.43448297381401063, "sibling_qid": "MUM-2023-11-0148-Q003", "sibling_text": "15 ppm not working how will you report control actions as 2e", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "2. OWS / 15 ppm alarm not working — reporting and control actions as 2/E", "cross_family": true }, { "answer_id": "OWS-15PPM-002", "score": 0.5284932851791382, "sibling_score": 0.5284932851791382, "answer_score": null, "sibling_qid": "KOL-2025-07-0983-Q005", "sibling_text": "how you will ensure correct operation of ows 15 ppm monitoring equipment it s discharge criteria", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": true }, { "answer_id": "ODC-015", "score": 0.494726300239563, "sibling_score": 0.494726300239563, "answer_score": null, "sibling_qid": "CHE-2025-12-0328-Q013", "sibling_text": "odme discharge criteria and ppm requirement", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "ODMCS discharge criteria — the interlock, the ppm requirement and what stops the valve", "cross_family": true } ] }, { "qid": "CHE-2026-09-3910-Q006", "text": "And what will u do if discharge exceeds 15 PPM in special areas?", "family": "Other Conventions", "subtopic": "EEZ / PSSA / Special Area", "tid": "CHE-2026-09-3910", "tray": "new", "candidates": [ { "answer_id": "OWS-ORB-002", "score": 0.5411766767501831, "sibling_score": 0.5411766767501831, "answer_score": 0.43448297381401063, "sibling_qid": "MUM-2023-11-0148-Q003", "sibling_text": "15 ppm not working how will you report control actions as 2e", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "2. OWS / 15 ppm alarm not working — reporting and control actions as 2/E", "cross_family": true }, { "answer_id": "OWS-15PPM-002", "score": 0.5284932851791382, "sibling_score": 0.5284932851791382, "answer_score": null, "sibling_qid": "KOL-2025-07-0983-Q005", "sibling_text": "how you will ensure correct operation of ows 15 ppm monitoring equipment it s discharge criteria", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": true }, { "answer_id": "ODC-015", "score": 0.494726300239563, "sibling_score": 0.494726300239563, "answer_score": null, "sibling_qid": "CHE-2025-12-0328-Q013", "sibling_text": "odme discharge criteria and ppm requirement", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "ODMCS discharge criteria — the interlock, the ppm requirement and what stops the valve", "cross_family": true } ] }, { "qid": "CHE-2026-09-3910-Q007", "text": "Rudder construction?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "CHE-2026-09-3910", "tray": "new", "candidates": [ { "answer_id": "TRS-002", "score": 0.6408465504646301, "sibling_score": 0.6408465504646301, "answer_score": 0.4436982899904251, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.6287221312522888, "sibling_score": 0.6287221312522888, "answer_score": null, "sibling_qid": "KOL-2026-05-4096-Q002", "sibling_text": "rudder construction welding painting pressure test", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "HULL-PAINT-002", "score": 0.5928608179092407, "sibling_score": 0.5928608179092407, "answer_score": null, "sibling_qid": "CHE-2026-02-0110-Q012", "sibling_text": "rudder internal painting", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Types of hull coating, the paint scheme by section, and why each is used", "cross_family": false } ] }, { "qid": "CHE-2026-09-3911-Q003", "text": "Man b and w bearing lubrication system complete in and out?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Crosshead Bearing", "tid": "CHE-2026-09-3911", "tray": "review", "candidates": [ { "answer_id": "XHD-BRG-B-005", "score": 0.7190988659858704, "sibling_score": 0.7190988659858704, "answer_score": null, "sibling_qid": "KOL-2021-08-1619-Q005", "sibling_text": "man b w crosshead bearing lubrication", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How crosshead lubrication is achieved — and why it is the hard one", "cross_family": false }, { "answer_id": "INT-SHAFT-003", "score": 0.6464522480964661, "sibling_score": 0.6464522480964661, "answer_score": 0.4709617257118225, "sibling_qid": "KOL-2026-07-4257-Q009", "sibling_text": "intermediate bearing lubrication procedure", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "3. Intermediate-shaft bearings: lubrication, high temperature, survey and load", "cross_family": false }, { "answer_id": "HYDRO-LUB-001", "score": 0.6296138763427734, "sibling_score": 0.6296138763427734, "answer_score": null, "sibling_qid": "KOL-2021-02-1578-Q003", "sibling_text": "what s type of lubrication which type in all bearings when me ready to run that time what lubrication in main bearing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "1. Lubrication, tribology & the types of lubrication", "cross_family": false } ] }, { "qid": "CHE-2026-09-3911-Q005", "text": "Where 24 V used and how its obtained?", "family": "Electrical - Distribution & MSB", "subtopic": "Voltage System (440V / 690V / HV)", "tid": "CHE-2026-09-3911", "tray": "new", "candidates": [ { "answer_id": "BDC-P02-04", "score": 0.5150576829910278, "sibling_score": 0.5150576829910278, "answer_score": 0.33804240077733994, "sibling_qid": "KOL-2022-01-2526-Q003", "sibling_text": "where 24v is used how to get 24v", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "The ship's 24 V DC system — how it is produced, why DC, and what it supplies", "cross_family": true }, { "answer_id": "T038-P01-001", "score": 0.48185789585113525, "sibling_score": 0.48185789585113525, "answer_score": null, "sibling_qid": "KOC-2023-07-0195-Q014", "sibling_text": "hv lv 24v", "sibling_family": "", "via": "sibling", "answer_title": "What is a marine high-voltage system, and what counts as HV onboard?", "cross_family": false }, { "answer_id": "VOLT-SYS-008", "score": 0.46104419231414795, "sibling_score": 0.46104419231414795, "answer_score": 0.2985753625631332, "sibling_qid": "CHE-2026-05-0525-Q004", "sibling_text": "24v supply", "sibling_family": "Electrical - Distribution & MSB", "via": "sibling", "answer_title": "Why standard shipboard voltages: 440, 230/220, 110 and 24", "cross_family": false } ] }, { "qid": "CHE-2026-09-3912-Q010", "text": "What is mean by domestic refrigeration? Why is there a thermostatic expansion valve? Why thermostatic valve, it can be any valve but why thermostatic, what do you mean by thermostatic, why does superheat need to be maintained? What will happen if superheat is high and vice versa.", "family": "Refrigeration & AC", "subtopic": "Thermostatic Valve", "tid": "CHE-2026-09-3912", "tray": "review", "candidates": [ { "answer_id": "REF-SCSH-002", "score": 0.7639419436454773, "sibling_score": 0.7639419436454773, "answer_score": 0.582846063375473, "sibling_qid": "MUM-2026-05-3217-Q006", "sibling_text": "domestic refrigeration how u will adjust degree of super heat", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Superheat in refrigeration — purpose, adjustment, importance and confirming suction superheat", "cross_family": false }, { "answer_id": "TEV-TXV-002", "score": 0.7566050887107849, "sibling_score": 0.7566050887107849, "answer_score": 0.5692041873931885, "sibling_qid": "KOL-2018-12-1434-Q004", "sibling_text": "explain thermostatic expansion v v in refrigeration system", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "TEV / TXV — purpose, construction, location and working", "cross_family": false }, { "answer_id": "TEV-TXV-005", "score": 0.726230263710022, "sibling_score": 0.726230263710022, "answer_score": null, "sibling_qid": "KOC-2024-10-1009-Q008", "sibling_text": "in refrigerator throttling valve what happens", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Throttling process and superheat control across the TEV", "cross_family": false } ] }, { "qid": "CHE-2026-09-3912-Q011", "text": "If you manually defrost the evaporator tubes with water, how does the water drain and where it goes? The type of drain in your meat room was the question of what he intended. No questions from Internal.", "family": "Refrigeration & AC", "subtopic": "Refer Safety", "tid": "CHE-2026-09-3912", "tray": "review", "candidates": [ { "answer_id": "REFR-FLT-002", "score": 0.6565884351730347, "sibling_score": 0.6565884351730347, "answer_score": 0.5025103688240051, "sibling_qid": "KOL-2018-12-1436-Q003", "sibling_text": "refer evaporator defrosting arrangement", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Evaporator defrosting: methods, control, and defrost faults", "cross_family": false }, { "answer_id": "REF-CYC-011", "score": 0.6515398621559143, "sibling_score": 0.6515398621559143, "answer_score": null, "sibling_qid": "KOC-2022-05-1786-Q006", "sibling_text": "how meat room is getting cooled what s happening in evaporator", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "The evaporator — what it does and how it cools the provision room", "cross_family": false }, { "answer_id": "REEF-PREP-003", "score": 0.6511560082435608, "sibling_score": 0.6511560082435608, "answer_score": 0.6261339992284775, "sibling_qid": "KOL-2019-10-1484-Q014", "sibling_text": "refer room drain goes where", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Refrigerated-room drain and moisture-removal arrangement", "cross_family": false } ] }, { "qid": "CHE-2026-09-3913-Q002", "text": "How your bhp is calculated shown in ECR and cross questions?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Engine Theory / Performance", "tid": "CHE-2026-09-3913", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P01-001", "score": 0.7160906195640564, "sibling_score": 0.7160906195640564, "answer_score": 0.4502751290798187, "sibling_qid": "CHE-2025-08-0198-Q003", "sibling_text": "you see bhp in ecr how this bhp is measured", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "IND-CARD-B-003", "score": 0.6278027296066284, "sibling_score": 0.6278027296066284, "answer_score": null, "sibling_qid": "KOL-2018-08-1861-Q003", "sibling_text": "ihp and bhp calculation y bhp less due to friction loss and other losses", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Power calculation from the indicator / power card", "cross_family": false }, { "answer_id": "MIP-264-003", "score": 0.6228481531143188, "sibling_score": 0.6228481531143188, "answer_score": 0.47806288599967955, "sibling_qid": "KOL-2021-12-1651-Q006", "sibling_text": "4 how to get ihp and bhp of", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Calculate engine power: IHP and BHP, and where each is measured", "cross_family": false } ] }, { "qid": "CHE-2026-09-3913-Q003", "text": "Main bearing lubrication in and exit total view?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Main Bearing", "tid": "CHE-2026-09-3913", "tray": "new", "candidates": [ { "answer_id": "HYDRO-LUB-001", "score": 0.6496921181678772, "sibling_score": 0.6496921181678772, "answer_score": null, "sibling_qid": "KOL-2021-02-1578-Q003", "sibling_text": "what s type of lubrication which type in all bearings when me ready to run that time what lubrication in main bearing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "1. Lubrication, tribology & the types of lubrication", "cross_family": false }, { "answer_id": "MAIN-BRG-D-003", "score": 0.6443766951560974, "sibling_score": 0.6443766951560974, "answer_score": 0.5377078801393509, "sibling_qid": "CHE-2025-12-0227-Q003", "sibling_text": "main bearing lubrication arrangement", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main bearing lubrication arrangement", "cross_family": false }, { "answer_id": "INT-SHAFT-003", "score": 0.6296969056129456, "sibling_score": 0.6296969056129456, "answer_score": 0.4724343240261078, "sibling_qid": "KOL-2026-07-4257-Q009", "sibling_text": "intermediate bearing lubrication procedure", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "3. Intermediate-shaft bearings: lubrication, high temperature, survey and load", "cross_family": false } ] }, { "qid": "CHE-2026-09-3913-Q004", "text": "SCR Function and how it controls nox?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "NOx / SOx / EEDI / CII", "tid": "CHE-2026-09-3913", "tray": "new", "candidates": [ { "answer_id": "A6-NSEC-002", "score": 0.529531717300415, "sibling_score": 0.529531717300415, "answer_score": null, "sibling_qid": "KOC-2025-03-0559-Q005", "sibling_text": "nox technical file x scr working", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "NOx Technical Code vs NOx Technical File", "cross_family": false }, { "answer_id": "AV6-P03-04", "score": 0.49556735157966614, "sibling_score": 0.49556735157966614, "answer_score": null, "sibling_qid": "KOL-2025-12-1827-Q007", "sibling_text": "function of scr hpscr lpscr", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "HP SCR versus LP SCR — pre-turbine and post-turbine arrangements", "cross_family": false }, { "answer_id": "AV6-P03-02", "score": 0.4880755841732025, "sibling_score": 0.4880755841732025, "answer_score": 0.34879301190376283, "sibling_qid": "CHE-2025-12-0230-Q010", "sibling_text": "scr operation", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SCR for marine NOx control — meaning, working principle, chemistry and system components", "cross_family": false } ] }, { "qid": "CHE-2026-09-3913-Q007", "text": "Scavenge space risk assessment?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Scavenging / Scavenge Fire", "tid": "CHE-2026-09-3913", "tray": "new", "candidates": [ { "answer_id": "SCAV-323-P02-005", "score": 0.6151755452156067, "sibling_score": 0.6151755452156067, "answer_score": null, "sibling_qid": "KOC-2026-01-1991-Q001", "sibling_text": "scavenge space inspection", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Scavenge-space inspection: preparation, checks and findings", "cross_family": false }, { "answer_id": "SCAV-323-P01-001", "score": 0.5774101614952087, "sibling_score": 0.5774101614952087, "answer_score": null, "sibling_qid": "KOC-2023-03-1811-Q006", "sibling_text": "scavenge space fire", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Scavenge fire in the main engine — your actions", "cross_family": false }, { "answer_id": "SCAV-323-P01-005", "score": 0.5586506724357605, "sibling_score": 0.5586506724357605, "answer_score": null, "sibling_qid": "MUM-2025-05-1118-Q003", "sibling_text": "after scavenge space fire what all checks you will do", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Post-fire checks before restarting and loading", "cross_family": false } ] }, { "qid": "CHE-2026-09-3914-Q003", "text": "Type of rudder and how load taken by rudder and arrangements in carrier bearing?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "CHE-2026-09-3914", "tray": "review", "candidates": [ { "answer_id": "TRS-002", "score": 0.7108038663864136, "sibling_score": 0.7108038663864136, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.6858140826225281, "sibling_score": 0.6858140826225281, "answer_score": 0.4489972829818725, "sibling_qid": "CHE-2026-02-0110-Q006", "sibling_text": "how rudder weight is carried key ans i said carrier bearing how it carrying explain", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "PRE-TEN-001", "score": 0.6334810853004456, "sibling_score": 0.6334810853004456, "answer_score": null, "sibling_qid": "MUM-2026-06-3504-Q007", "sibling_text": "rudder carrier bearing removal procedure", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Pre-stressing and pre-tensioning in main-engine bolting", "cross_family": false } ] }, { "qid": "CHE-2026-09-3914-Q006", "text": "what is classification society and why required and what all they check in drydock?", "family": "Surveys - Statutory", "subtopic": "IACS / Classification Society", "tid": "CHE-2026-09-3914", "tray": "review", "candidates": [ { "answer_id": "IACS-324-002", "score": 0.7359336614608765, "sibling_score": 0.7359336614608765, "answer_score": 0.5272442042827606, "sibling_qid": "KOC-2023-05-0192-Q004", "sibling_text": "y ship need to be classed classification society functions", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "2. What is a classification society, why does a ship need class, and what are its functions?", "cross_family": false }, { "answer_id": "DUS-P1-01", "score": 0.5947984457015991, "sibling_score": 0.5947984457015991, "answer_score": null, "sibling_qid": "MUM-2022-10-2152-Q003", "sibling_text": "drydock checks", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Drydock preparation as 2E — full workflow from office confirmation to entry", "cross_family": true }, { "answer_id": "HSSC-003", "score": 0.5911569595336914, "sibling_score": 0.5911569595336914, "answer_score": null, "sibling_qid": "CHE-2025-10-0062-Q007", "sibling_text": "dry dock what all certificates are renewed what is hssc code", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Explain the harmonisation of the statutory certificates. Which certificate is issued first, and in drydock which certificates are renewed?", "cross_family": false } ] }, { "qid": "CHE-2026-09-3914-Q008", "text": "Reduction methods of Nox nd Sox?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "NOx Limits / Tier", "tid": "CHE-2026-09-3914", "tray": "new", "candidates": [ { "answer_id": "A6-NSEC-003", "score": 0.5933404564857483, "sibling_score": 0.5933404564857483, "answer_score": 0.26908017992973327, "sibling_qid": "CHE-2024-10-0010-Q001", "sibling_text": "nox reduction methods got both functions finally cleared class", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "NOx — formation, limits & reduction (SCR / EGR)", "cross_family": false }, { "answer_id": "SOX-LIMIT-003", "score": 0.5816927552223206, "sibling_score": 0.5816927552223206, "answer_score": null, "sibling_qid": "KOC-2025-10-0670-Q026", "sibling_text": "sox reduction methods", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Controlling SOx onboard — compliant fuel, scrubbers, alternatives", "cross_family": false }, { "answer_id": "AV6-P01-04", "score": 0.5574242472648621, "sibling_score": 0.5574242472648621, "answer_score": 0.34394649863243104, "sibling_qid": "MUM-2024-04-0173-Q008", "sibling_text": "sox nox how to reduce", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Compare how SOx and NOx are formed on a marine engine and the principal routes to reduce each.", "cross_family": false } ] }, { "qid": "CHE-2026-09-3915-Q002", "text": "Tell your engine specification and boilers worked?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Engine Nomenclature", "tid": "CHE-2026-09-3915", "tray": "review", "candidates": [ { "answer_id": "BLR-CAP-BOILER-CAPACITY-RATING-006", "score": 0.7195861339569092, "sibling_score": 0.7195861339569092, "answer_score": 0.558631482720375, "sibling_qid": "MUM-2022-08-0942-Q002", "sibling_text": "boiler specs complete turbine specs", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "State the boiler specifications relevant to rating/capacity.", "cross_family": true }, { "answer_id": "BLR-OPS-007", "score": 0.7064618468284607, "sibling_score": 0.7064618468284607, "answer_score": null, "sibling_qid": "CHE-2026-05-0632-Q013", "sibling_text": "firing process in main engine and boiler", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Explain the firing sequence of an automatically fired boiler.", "cross_family": false }, { "answer_id": "ETP-344-P03-009", "score": 0.7012607455253601, "sibling_score": 0.7012607455253601, "answer_score": null, "sibling_qid": "CHE-2025-08-0200-Q001", "sibling_text": "ex vengopal sir int po kilimohanrao engine details and how power cal how this power is measured electronically how 2nd order moments created what is the counter action how it does what is moments alpha lubrication and cross angle encoder lambda controller what is speciallity of water tube boilers type of safety valve in your boiler explain it po", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Moment compensator, second-order moment and counter-rotating arrangement", "cross_family": false } ] }, { "qid": "CHE-2026-09-3915-Q003", "text": "What is engine top bracing? how fitted? how many types ?and explain each? why starboard side fitted why not port side?", "family": "2-Stroke - Components (Other)", "subtopic": "Top Bracing", "tid": "CHE-2026-09-3915", "tray": "review", "candidates": [ { "answer_id": "TOP-BRC-003", "score": 0.6543501019477844, "sibling_score": 0.6543501019477844, "answer_score": null, "sibling_qid": "KOL-2026-07-4270-Q006", "sibling_text": "top bracing function type location how many top bracing in ur engine", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "3. Checks, testing, maintenance, overhaul and malfunction", "cross_family": false }, { "answer_id": "TOP-BRC-001", "score": 0.6411854028701782, "sibling_score": 0.6411854028701782, "answer_score": 0.5692549020051956, "sibling_qid": "KOC-2025-05-1038-Q004", "sibling_text": "what is top bracing function of top bracing to which side of engine top bracing is attached", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "1. What top bracing is, where it is fitted, and why", "cross_family": false }, { "answer_id": "VIB-BAL-A-003", "score": 0.5553292036056519, "sibling_score": 0.5553292036056519, "answer_score": 0.46269377470016476, "sibling_qid": "KOL-2021-12-1912-Q002", "sibling_text": "transverse loading of engine trv vibrations causes top bracing material", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "VIB-A-03 — Transverse, longitudinal and lateral engine vibration, and how each is controlled (top bracing)", "cross_family": true } ] }, { "qid": "CHE-2026-09-3915-Q008", "text": "Difference between cast steel and cast iron? what is steel and iron, in ship cast Steel where located, how you will do cast steel welding?", "family": "Workshop & Welding", "subtopic": "Cast Iron Welding", "tid": "CHE-2026-09-3915", "tray": "review", "candidates": [ { "answer_id": "WELD-B-001", "score": 0.6870366334915161, "sibling_score": 0.6870366334915161, "answer_score": 0.4693084597587585, "sibling_qid": "MUM-2026-05-3209-Q007", "sibling_text": "cast iron welding", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding & crack-repair of aluminium and cast iron, including metal stitching", "cross_family": false }, { "answer_id": "SGB-212-004", "score": 0.5660171210765839, "sibling_score": null, "answer_score": 0.5660171210765839, "sibling_qid": "", "sibling_text": "mild steel vs cast steel vs stainless steel mild steel 0 15 0 25 c ductile weldable cheap structure and plating rusts needs coating cast steel steel cast to shape 0 2 0 5 c tougher and stronger than cast iron weldable valve bodies stern frame rudder brackets", "sibling_family": "", "via": "answer_title", "answer_title": "Mild steel vs cast steel vs stainless steel", "cross_family": false }, { "answer_id": "STEEL-GR-002", "score": 0.5357564061880111, "sibling_score": null, "answer_score": 0.5357564061880111, "sibling_qid": "", "sibling_text": "mild steel composition use and how it differs from cast iron mild steel low carbon steel carbon about 0 15 0 25 hull grade a caps carbon near 0 21 for weldability properties ductile tough weldable formable cheap moderate strength corrodes needs coatings and cathodic protection", "sibling_family": "", "via": "answer_title", "answer_title": "Mild steel — composition, use, and how it differs from cast iron", "cross_family": false } ] }, { "qid": "CHE-2026-09-3915-Q009", "text": "Main engine intermediate bearing tomorrow you having surveyor so how you will prepare ? ( i told two method one is by lifting by hydraulic Jack, and another Bolt dismantling and take out shaft but both he not accepting, he said this and all drydock job now you considered ship engineers only doing this job and tell accordingly answer (he having experience without this two method he done bearing removal) ", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Intermediate Shaft Bearing", "tid": "CHE-2026-09-3915", "tray": "review", "candidates": [ { "answer_id": "MN-BRG-C-001", "score": 0.748678982257843, "sibling_score": 0.748678982257843, "answer_score": null, "sibling_qid": "MUM-2026-05-3235-Q004", "sibling_text": "main bearing survey and removal procedure", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Opening, removing and overhauling a main bearing", "cross_family": false }, { "answer_id": "MAIN-BRG-B-001", "score": 0.7451508641242981, "sibling_score": 0.7451508641242981, "answer_score": null, "sibling_qid": "KOL-2017-07-3065-Q005", "sibling_text": "main bearing survey and removal", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you open up / remove / overhaul a main-engine main bearing?", "cross_family": false }, { "answer_id": "BEB-A-001", "score": 0.7421814799308777, "sibling_score": 0.7421814799308777, "answer_score": null, "sibling_qid": "KOL-2022-09-3572-Q003", "sibling_text": "bottom end bearing survey and removal procedure only", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Removing, overhauling, inspecting and refitting the bottom end bearing", "cross_family": false } ] }, { "qid": "CHE-2026-09-3915-Q010", "text": "Have you done boiler furnace maintenance ? what types of material they using? how they will do maintenance, they will simply put bricks and cement are any other arrangement will do?", "family": "Boilers - Safety & Survey", "subtopic": "Boiler Strength Check", "tid": "CHE-2026-09-3915", "tray": "review", "candidates": [ { "answer_id": "FURN-REF-002", "score": 0.7476686835289001, "sibling_score": 0.7476686835289001, "answer_score": 0.5643372058868408, "sibling_qid": "CHE-2026-04-0522-Q008", "sibling_text": "boiler refractory patch up and how the bricks are supported", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Boiler refractory patch-up, restoration, brick support and repair procedure", "cross_family": false }, { "answer_id": "FURN-REF-001", "score": 0.657272458076477, "sibling_score": 0.657272458076477, "answer_score": 0.5148032158613205, "sibling_qid": "CHE-2026-08-3886-Q008", "sibling_text": "boiler refractory material support", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Boiler refractory — materials, types, composition and acidic / basic refractory", "cross_family": true }, { "answer_id": "BLR-SURV-P02-008", "score": 0.6510984301567078, "sibling_score": 0.6510984301567078, "answer_score": null, "sibling_qid": "MUM-2026-06-3504-Q012", "sibling_text": "boiler survey and boiler gasket material", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "CHE-2026-09-3915-Q011", "text": "ME crankcase pressure? Relief Door pressure ? How to do pressure test crankcase relief door onboard?", "family": "2-Stroke - Components (Other)", "subtopic": "Crankcase & Relief Devices", "tid": "CHE-2026-09-3915", "tray": "review", "candidates": [ { "answer_id": "CRD-003", "score": 0.7769719362258911, "sibling_score": 0.7769719362258911, "answer_score": 0.6138944000005722, "sibling_qid": "KOL-2022-07-3553-Q006", "sibling_text": "crankcase relief doors testing how to determine opening pressure", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Testing & opening-pressure verification of crankcase relief valves", "cross_family": true }, { "answer_id": "CC-RELIEF-312-001", "score": 0.7765769958496094, "sibling_score": 0.7765769958496094, "answer_score": 0.6343470811843872, "sibling_qid": "MUM-2022-12-0074-Q005", "sibling_text": "how to test m e crankcase relief valve what is pressure setting", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Testing a crankcase relief valve / relief door — and the pressure setting", "cross_family": false }, { "answer_id": "PIST-CSI-C-002", "score": 0.7030673027038574, "sibling_score": 0.7030673027038574, "answer_score": null, "sibling_qid": "CHE-2025-08-0430-Q001", "sibling_text": "how to pressure test you main engine piston explained as we keeps piston upside down and fill up oil in the oil hole and place pressure gauge with air connection testing tool by manufacturer and tighten then connect service air line and slowly open the valve and noticed the pressure until pressure about 4 5 to 5 bar and shut air and disconnect and allow it for some time and check for any leaks around the piston and check the pressure gauge reading as maintain the same pressure or not but mr po sir said how you can use air to test what you mean man i said raise yes sir this the way we use the check he side how can you connect air for test to pressure test of piston using air and laugh its really made me so uncomfortable and put me into its worst case", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston pressure / hydraulic leak testing after overhaul", "cross_family": false } ] }, { "qid": "CHE-2026-09-3915-Q012", "text": "Why liner getting glassiness both main engine and auxiliary engine, I want reason, tell how auxiliary liner getting lubricating? Liner honing how to do why they doing?", "family": "2-Stroke - Liner & Piston Overhaul", "subtopic": "", "tid": "CHE-2026-09-3915", "tray": "new", "candidates": [ { "answer_id": "CYL-LINER-P02-008", "score": 0.5869870781898499, "sibling_score": 0.5869870781898499, "answer_score": 0.45223871171474456, "sibling_qid": "KOL-2023-02-1727-Q001", "sibling_text": "liner polishing reasons", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L8 · T044-PART_02-G008High", "cross_family": true }, { "answer_id": "CYL-LINER-P02-001", "score": 0.5738929510116577, "sibling_score": 0.5738929510116577, "answer_score": 0.4668239504098892, "sibling_qid": "CHE-2026-08-0672-Q009", "sibling_text": "honing of liner", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L1 · T044-PART_02-G001High", "cross_family": true }, { "answer_id": "CYL-LINER-P03-006", "score": 0.5425143241882324, "sibling_score": 0.5425143241882324, "answer_score": null, "sibling_qid": "KOL-2017-04-1289-Q008", "sibling_text": "removing old liner procedure of main engine and checks br fitting new liner", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Fitting a new cylinder liner — checks and precautions during renewal and installation", "cross_family": true } ] }, { "qid": "CHE-2026-09-3915-Q013", "text": "How many types of fuel pumps for main engine? Tell both ME engine and MC engine fuel pump how it is working? DECIDING QUES", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Pump Overhaul", "tid": "CHE-2026-09-3915", "tray": "review", "candidates": [ { "answer_id": "FP-OVHL-006", "score": 0.7484740018844604, "sibling_score": 0.7484740018844604, "answer_score": 0.6055157989263534, "sibling_qid": "MUM-2025-12-0615-Q006", "sibling_text": "mc engine and mcc engine fuel pump construction difference", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Main-engine fuel pump — construction, working, VIT, reversing, MC vs ME-C", "cross_family": false }, { "answer_id": "FIS-221-004", "score": 0.7011539340019226, "sibling_score": 0.7011539340019226, "answer_score": null, "sibling_qid": "MUM-2025-05-0273-Q008", "sibling_text": "difference between conventional fuel pump and me engine fuel pump", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Conventional versus ME / electronically controlled injection", "cross_family": false }, { "answer_id": "FCL-P02-001", "score": 0.6971046328544617, "sibling_score": 0.6971046328544617, "answer_score": null, "sibling_qid": "KOC-2023-01-1802-Q003", "sibling_text": "main engine fuel pump timing any type", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel pump / injection timing check, setting, and adjustment", "cross_family": false } ] }, { "qid": "CHE-2026-09-3916-Q001", "text": "M/E specification & MCR?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Engine Nomenclature", "tid": "CHE-2026-09-3916", "tray": "new", "candidates": [ { "answer_id": "MCR-NOR-001", "score": 0.6070822477340698, "sibling_score": 0.6070822477340698, "answer_score": 0.3469380781054497, "sibling_qid": "CHE-2026-05-0551-Q010", "sibling_text": "what is mcr", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "MCR and NCR — what they are, the difference, and why NCR is taken at about 85% of MCR", "cross_family": true }, { "answer_id": "ETP-344-P01-004", "score": 0.5851319432258606, "sibling_score": 0.5851319432258606, "answer_score": 0.37168551683425904, "sibling_qid": "MUM-2023-08-1058-Q001", "sibling_text": "mcr ncr", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "MCR, NCR, sea margin, load curve, heavy running — and why ~85%", "cross_family": false }, { "answer_id": "MEB-MEC-P03-001", "score": 0.5681217908859253, "sibling_score": 0.5681217908859253, "answer_score": null, "sibling_qid": "KOC-2025-10-1055-Q002", "sibling_text": "mcc mec difference", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "ME-B vs ME-C — the core difference", "cross_family": false } ] }, { "qid": "CHE-2026-09-3917-Q001", "text": "Structural arrangements for racking and pounding?", "family": "Ship Construction & Stability", "subtopic": "Panting / Pounding / Slamming", "tid": "CHE-2026-09-3917", "tray": "new", "candidates": [ { "answer_id": "SCS-DEF-006", "score": 0.5885095000267029, "sibling_score": 0.5885095000267029, "answer_score": null, "sibling_qid": "CHE-2026-05-0544-Q009", "sibling_text": "racking and it s construction", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "6. What is racking in ship construction?", "cross_family": false }, { "answer_id": "PPS-230-004", "score": 0.5806631445884705, "sibling_score": 0.5806631445884705, "answer_score": 0.4594815284013748, "sibling_qid": "CHE-2025-08-0016-Q004", "sibling_text": "stern arrangement and pounding arrangement", "sibling_family": "", "via": "sibling", "answer_title": "Forward strengthening to resist pounding / slamming", "cross_family": false }, { "answer_id": "PPS-230-006", "score": 0.5577652454376221, "sibling_score": 0.5577652454376221, "answer_score": null, "sibling_qid": "KOL-2025-09-1065-Q005", "sibling_text": "fore peak tank construction panting pounding arrangement", "sibling_family": "", "via": "sibling", "answer_title": "Fore-end / fore-peak structure: draw and describe", "cross_family": false } ] }, { "qid": "CHE-2026-09-3917-Q002", "text": "Cavitation of propeller?", "family": "Shafting, Propeller & Rudder", "subtopic": "Stern Tube / Shafting / Propeller / Rudder", "tid": "CHE-2026-09-3917", "tray": "review", "candidates": [ { "answer_id": "PCD-P03-05", "score": 0.667356014251709, "sibling_score": 0.667356014251709, "answer_score": 0.494092857837677, "sibling_qid": "KOL-2019-07-0294-Q001", "sibling_text": "pitch cavitation", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Cavitation — definition, where, factors, identification and control", "cross_family": true }, { "answer_id": "CYL-LINER-P02-006", "score": 0.6438745856285095, "sibling_score": 0.6438745856285095, "answer_score": null, "sibling_qid": "CHE-2026-04-0522-Q013", "sibling_text": "liner cavitation", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L6 · T044-PART_02-G006Medium", "cross_family": true }, { "answer_id": "PROP-PIL-A-002", "score": 0.6321464776992798, "sibling_score": 0.6321464776992798, "answer_score": null, "sibling_qid": "KOL-2018-04-3136-Q002", "sibling_text": "bedding of propeller", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Bedding on the taper and fit verification", "cross_family": true } ] }, { "qid": "CHE-2026-09-3917-Q004", "text": "Safety committee meeting your actions as second engineer?", "family": "Risk & Safety Management", "subtopic": "Safety Meeting / Committee", "tid": "CHE-2026-09-3917", "tray": "new", "candidates": [ { "answer_id": "RA-MGMT-A-001", "score": 0.6060532927513123, "sibling_score": 0.6060532927513123, "answer_score": null, "sibling_qid": "KOC-2021-07-0018-Q003", "sibling_text": "as a second engineer how you will make sure that your crew is free from personal hazards answer ppe loose items secured floor plates free from oil railings free from oil to prevention of falling down proper maintenance of machinery anti splashing tapes rubber mates on switchboard for avoid shock proper training engine room cleanness", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "What is risk, what is hazard, and what is risk assessment?", "cross_family": false }, { "answer_id": "RA-MGMT-B-001", "score": 0.604391872882843, "sibling_score": 0.604391872882843, "answer_score": null, "sibling_qid": "CHE-2026-09-3917-Q006", "sibling_text": "risk assessment why and your actions as second engineer", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "How is a shipboard risk assessment prepared and carried out?", "cross_family": true }, { "answer_id": "RISK-RA-C-001", "score": 0.5907564759254456, "sibling_score": 0.5907564759254456, "answer_score": null, "sibling_qid": "CHE-2026-02-0484-Q001", "sibling_text": "as a second engineer what are the safety checks u do in work shop machineries", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "Preparing and carrying out a shipboard risk assessment", "cross_family": false } ] }, { "qid": "CHE-2026-09-3917-Q007", "text": "Portable extinguisher spare order how will you do it?", "family": "SOLAS - Fire Safety", "subtopic": "Fire Extinguisher Types", "tid": "CHE-2026-09-3917", "tray": "review", "candidates": [ { "answer_id": "FEXT-583-003", "score": 0.6862324476242065, "sibling_score": 0.6862324476242065, "answer_score": null, "sibling_qid": "CHE-2026-05-0557-Q010", "sibling_text": "spare portable extinguisher requirement", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Portable fire extinguisher regulations — how many, and the tonnage the number actually depends on", "cross_family": false }, { "answer_id": "DCP-B-002", "score": 0.6505218744277954, "sibling_score": 0.6505218744277954, "answer_score": null, "sibling_qid": "KOC-2023-03-0170-Q008", "sibling_text": "portable dcp extinguisher what to here 2 siphon tube", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Portable DCP extinguisher — construction, working, safeties, application and empty indication", "cross_family": false }, { "answer_id": "FEXT-583-009", "score": 0.6474810242652893, "sibling_score": 0.6474810242652893, "answer_score": null, "sibling_qid": "MUM-2026-04-0926-Q008", "sibling_text": "portable co2 extinguisher for recharge criteria", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Recharging and refilling — DCP, foam and CO2, and what can be done on board", "cross_family": false } ] }, { "qid": "CHE-2026-09-3917-Q008", "text": "Ship security plan as a second engineer?", "family": "ISPS", "subtopic": "SSP / SSAS / SSO / CSO", "tid": "CHE-2026-09-3917", "tray": "new", "candidates": [ { "answer_id": "ISPS-SSP-P01-001", "score": 0.6488911509513855, "sibling_score": 0.6488911509513855, "answer_score": null, "sibling_qid": "KOC-2023-02-0148-Q006", "sibling_text": "ship security plan", "sibling_family": "ISPS", "via": "sibling", "answer_title": "Ship Security Plan (SSP): purpose, scope & contents", "cross_family": false }, { "answer_id": "ISPS-SSP-P02-001", "score": 0.6287151575088501, "sibling_score": 0.6287151575088501, "answer_score": null, "sibling_qid": "KOC-2024-11-0475-Q009", "sibling_text": "ship security plan content", "sibling_family": "ISPS", "via": "sibling", "answer_title": "Ship Security Plan (SSP) — purpose, scope and contents", "cross_family": false }, { "answer_id": "ISPS-SSP-P02-002", "score": 0.6258994340896606, "sibling_score": 0.6258994340896606, "answer_score": null, "sibling_qid": "MUM-2024-08-0195-Q004", "sibling_text": "ship security plan who has access", "sibling_family": "ISPS", "via": "sibling", "answer_title": "SSP — who prepares it, approval, and who has access", "cross_family": false } ] }, { "qid": "CHE-2026-09-3918-Q005", "text": "CO2 empty bottle SOLAS regulation?", "family": "SOLAS - Fire Safety", "subtopic": "CO2 System", "tid": "CHE-2026-09-3918", "tray": "review", "candidates": [ { "answer_id": "CO2-SYS-006", "score": 0.79318767786026, "sibling_score": 0.79318767786026, "answer_score": 0.4563816040754318, "sibling_qid": "CHE-2026-04-0375-Q008", "sibling_text": "co2 empty bottle regulation he is not asking how to scarp empty bottle asking about regulation of co2 empty bottle should comply according to solas", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 bottles, manifolds, pilot cylinders and valve components", "cross_family": false }, { "answer_id": "CO2-SYS-008", "score": 0.6644462943077087, "sibling_score": 0.6644462943077087, "answer_score": null, "sibling_qid": "CHE-2026-04-0133-Q002", "sibling_text": "co2 which solas regulation", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 release-rate rules, regulations and confirmation of discharge", "cross_family": false }, { "answer_id": "CO2-CALC-P01-002", "score": 0.6201165914535522, "sibling_score": 0.6201165914535522, "answer_score": 0.43128359615802764, "sibling_qid": "MUM-2026-06-3413-Q008", "sibling_text": "co2 bottle filling requirement", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "How is the required CO2 quantity and number of bottles calculated for an engine-room total-flooding system?", "cross_family": false } ] }, { "qid": "CHE-2026-09-3918-Q010", "text": "ER CRANE Motor how many speeds?", "family": "Electrical - Motors & Starters", "subtopic": "Windlass / Crane Motor", "tid": "CHE-2026-09-3918", "tray": "review", "candidates": [ { "answer_id": "CRANE-ER-004", "score": 0.7242194414138794, "sibling_score": 0.7242194414138794, "answer_score": 0.5049698501825333, "sibling_qid": "KOL-2021-10-2505-Q001", "sibling_text": "1 er crane has 2 speeds how achieved i said 2 different poles and controlled by contractors", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Electrical control & motor: reversing and two-speed operation", "cross_family": true }, { "answer_id": "WIND-CRN-P01-001", "score": 0.7095070481300354, "sibling_score": 0.7095070481300354, "answer_score": 0.5288230448961257, "sibling_qid": "CHE-2026-09-3918-Q011", "sibling_text": "how er crane motor speed of the motor is achieved", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Crane / winch motor speed control", "cross_family": false }, { "answer_id": "IM-TSS-P03-FINAL-1-001", "score": 0.6424968838691711, "sibling_score": 0.6424968838691711, "answer_score": null, "sibling_qid": "KOC-2023-12-1313-Q009", "sibling_text": "speed control in ac motor speed control in deck crane explain auto transformer", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Speed control of induction / AC motors — methods and onboard use", "cross_family": false } ] }, { "qid": "CHE-2026-09-3919-Q001", "text": "Type of engine sailed(Mitsubishi 6UEC60LA engine)?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Engine Nomenclature", "tid": "CHE-2026-09-3919", "tray": "new", "candidates": [ { "answer_id": "ENG-NOM-003", "score": 0.5272926688194275, "sibling_score": 0.5272926688194275, "answer_score": null, "sibling_qid": "KOL-2018-03-1355-Q002", "sibling_text": "engine 6s60mcc what is s if it would be l then what does it mean stroke bore ratio of main engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Stroke letters S/L/K/G, stroke-bore ratio, mark and series number", "cross_family": false }, { "answer_id": "MIP-264-007", "score": 0.5222218632698059, "sibling_score": 0.5222218632698059, "answer_score": null, "sibling_qid": "KOL-2022-06-1691-Q001", "sibling_text": "6 motor mep", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Fragmentary 'Motor & MEP' prompt (declared interpretation)", "cross_family": false }, { "answer_id": "ENG-NOM-004", "score": 0.5144872665405273, "sibling_score": 0.5144872665405273, "answer_score": 0.402602507174015, "sibling_qid": "KOL-2018-07-1396-Q001", "sibling_text": "motor what does each letter in 6s 60 mc c stand for", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Decode every letter and number: 6S60MC-C and 6S70ME-C", "cross_family": false } ] }, { "qid": "CHE-2026-09-3919-Q006", "text": "Mitsubishi engine Reversing not happening reason?", "family": "2-Stroke - Reversing & Maneuvering", "subtopic": "Reversing Procedure", "tid": "CHE-2026-09-3919", "tray": "review", "candidates": [ { "answer_id": "REV-PROC-008", "score": 0.722806990146637, "sibling_score": 0.722806990146637, "answer_score": 0.456295171380043, "sibling_qid": "KOL-2019-03-3222-Q002", "sibling_text": "engine fail to reverse what causes and action", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Engine, unit, fuel pump or cam fails to reverse — causes and action", "cross_family": false }, { "answer_id": "REV-PROC-006", "score": 0.6942760348320007, "sibling_score": 0.6942760348320007, "answer_score": 0.4619270771741867, "sibling_qid": "KOL-2019-08-3969-Q004", "sibling_text": "reversing in man b w engine specially control air passage where does it go engine was running on ahead now when u give astern it is not starting reasons i started with problems in reversing cylinder starting air distributor fuel n all he told me fuel oil reason is", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Reversing servomotors / cylinders — working and checks", "cross_family": false }, { "answer_id": "REV-PROC-002", "score": 0.6899793744087219, "sibling_score": 0.6899793744087219, "answer_score": null, "sibling_qid": "KOL-2024-05-1779-Q005", "sibling_text": "reversing in mcc engine", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Reversing in MAN B&W MC / MC-C / ME-C / ME-B engines", "cross_family": false } ] }, { "qid": "CHE-2026-09-3920-Q001", "text": "Types of vessel sailed ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2026-09-3920", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8192745447158813, "sibling_score": 0.8192745447158813, "answer_score": null, "sibling_qid": "CHE-2026-02-0481-Q001", "sibling_text": "type of vessels sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7712733149528503, "sibling_score": 0.7712733149528503, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7666119933128357, "sibling_score": 0.7666119933128357, "answer_score": null, "sibling_qid": "CHE-2026-03-0255-Q001", "sibling_text": "type of vessel and engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "CHE-2026-09-3920-Q003", "text": "Anti fouling system Explain ?", "family": "Drydock & Underwater Surveys", "subtopic": "Hull Painting / Antifouling", "tid": "CHE-2026-09-3920", "tray": "new", "candidates": [ { "answer_id": "HULL-PAINT-005", "score": 0.5726724863052368, "sibling_score": 0.5726724863052368, "answer_score": 0.5110428363084792, "sibling_qid": "KOC-2023-05-0189-Q003", "sibling_text": "antifouling paint signa coating", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Anti-fouling and silicone (foul-release) coatings, the AFS Convention, and current developments", "cross_family": false }, { "answer_id": "AFS-309-003", "score": 0.5629216432571411, "sibling_score": 0.5629216432571411, "answer_score": null, "sibling_qid": "KOC-2025-07-0629-Q008", "sibling_text": "anti fouling systum convention survey and certificate under this convension", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "IAFS Certificate, survey, validity and drydock compliance", "cross_family": true }, { "answer_id": "AFS-309-001", "score": 0.5602738857269287, "sibling_score": 0.5602738857269287, "answer_score": null, "sibling_qid": "KOL-2016-10-0015-Q002", "sibling_text": "anti foulingconvention", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "The AFS Convention — what it is, why it came, what it controls", "cross_family": true } ] }, { "qid": "CHE-2026-09-3920-Q005", "text": "Stern tube inspection when shaft completely removed ?", "family": "Drydock & Underwater Surveys", "subtopic": "Stern Tube / Tail Shaft", "tid": "CHE-2026-09-3920", "tray": "review", "candidates": [ { "answer_id": "STERN-P03-001", "score": 0.7414916753768921, "sibling_score": 0.7414916753768921, "answer_score": null, "sibling_qid": "KOL-2019-02-3212-Q003", "sibling_text": "crome stell liner of stern tube removal and inspection", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Chrome / shaft liner: fitting, removal, grooving & wastage, and repair options", "cross_family": false }, { "answer_id": "STS-P02-005", "score": 0.7027838230133057, "sibling_score": 0.7027838230133057, "answer_score": 0.5200002729892731, "sibling_qid": "KOL-2025-10-3867-Q005", "sibling_text": "stern tube bearing checks done", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "STS-P02-05 - Tail shaft removal, drydock inspection and pre-flooding checks", "cross_family": false }, { "answer_id": "STERN-TUBE-TAIL-SHAFT-001", "score": 0.6836559176445007, "sibling_score": 0.6836559176445007, "answer_score": null, "sibling_qid": "KOL-2020-06-3339-Q002", "sibling_text": "dry dock propellor shaft removal and checks on tail shaft", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "CHE-2026-09-3920-Q008", "text": "Ism -2/E duty in ISM ?", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "CHE-2026-09-3920", "tray": "new", "candidates": [ { "answer_id": "ISM-2E-A-001", "score": 0.5456650853157043, "sibling_score": 0.5456650853157043, "answer_score": 0.3479199707508087, "sibling_qid": "CHE-2026-04-0156-Q005", "sibling_text": "2e role in ism code", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Roles, duties and responsibilities of a Second Engineer under ISM/SMS", "cross_family": false }, { "answer_id": "ISM-2E-C-001", "score": 0.49065402150154114, "sibling_score": 0.49065402150154114, "answer_score": null, "sibling_qid": "KOC-2025-06-0616-Q004", "sibling_text": "ism documents parts as 2e", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM audit / survey preparation as Second Engineer — beyond the paperwork", "cross_family": false }, { "answer_id": "ISM-2E-A-002", "score": 0.48455125093460083, "sibling_score": 0.48455125093460083, "answer_score": null, "sibling_qid": "KOC-2024-03-0319-Q007", "sibling_text": "ism preparation 2e", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "How a Second Engineer prepares for an ISM audit or survey", "cross_family": false } ] }, { "qid": "CHE-2026-09-3921-Q005", "text": "What is ballast water management not system?", "family": "Other Conventions", "subtopic": "Ballast Water Convention / BWM / BWMS", "tid": "CHE-2026-09-3921", "tray": "review", "candidates": [ { "answer_id": "BWMS-C-001", "score": 0.741144597530365, "sibling_score": 0.741144597530365, "answer_score": 0.5672738909721374, "sibling_qid": "KOL-2018-06-0189-Q007", "sibling_text": "bwm purpose ballast water management systems", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Ballast water management vs treatment — and why a BWTS", "cross_family": false }, { "answer_id": "BWM-P01-001", "score": 0.7260102033615112, "sibling_score": 0.7260102033615112, "answer_score": null, "sibling_qid": "MUM-2026-09-3998-Q010", "sibling_text": "ballast water management system onboard latest requirement", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "BWM-P01-003", "score": 0.7112551331520081, "sibling_score": 0.7112551331520081, "answer_score": null, "sibling_qid": "KOC-2024-11-0462-Q003", "sibling_text": "document ballast water management", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "CHE-2026-09-3921-Q007", "text": "What is Free board? why given?", "family": "Ship Construction & Stability", "subtopic": "DEFINITION", "tid": "CHE-2026-09-3921", "tray": "review", "candidates": [ { "answer_id": "LL-CONV-P04-002", "score": 0.730787456035614, "sibling_score": 0.730787456035614, "answer_score": null, "sibling_qid": "CHE-2026-09-3921-Q007", "sibling_text": "free board why given", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Load Line Convention, certificates, assigning authority and detention risk", "cross_family": false }, { "answer_id": "LLC-P05-001", "score": 0.4744303524494171, "sibling_score": 0.4744303524494171, "answer_score": 0.30033851861953736, "sibling_qid": "CHE-2026-05-0618-Q005", "sibling_text": "what is fixed freeboard", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Freeboard, deck line, Plimsoll mark, assignment and scantling draft", "cross_family": false }, { "answer_id": "TPC-FWA-010", "score": 0.30382374227046965, "sibling_score": null, "answer_score": 0.30382374227046965, "sibling_qid": "", "sibling_text": "define freeboard draught displacement and tpc freeboard load line sense measured vertically downwards amidships from the upper edge of the deck line to the upper edge of the related assigned load line it represents assigned reserve buoyancy under the load line convention draught waterline keel", "sibling_family": "", "via": "answer_title", "answer_title": "Define freeboard, draught, displacement and TPC", "cross_family": false } ] }, { "qid": "CHE-2026-09-3921-Q013", "text": "Acceptable mega ohm for rewound motor?", "family": "Electrical - Motors & Starters", "subtopic": "MOTOR", "tid": "CHE-2026-09-3921", "tray": "new", "candidates": [ { "answer_id": "IRT-C-013", "score": 0.6071299910545349, "sibling_score": 0.6071299910545349, "answer_score": null, "sibling_qid": "CHE-2026-03-0344-Q003", "sibling_text": "rewound motor what are the checks as 2e u do", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Motor back from shore / rewind — checks before commissioning", "cross_family": false }, { "answer_id": "CONT-317-003", "score": 0.5904065370559692, "sibling_score": 0.5904065370559692, "answer_score": null, "sibling_qid": "CHE-2026-03-0348-Q005", "sibling_text": "rewound motor from shore how u ll identify that its your motor and what are all checks u carry out multimeter what are all settings u have how u check continuity etc before checking that how u prepare your motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Continuity to confirm terminal identity after overhaul or rewind", "cross_family": false }, { "answer_id": "IRT-C-004", "score": 0.5791455507278442, "sibling_score": 0.5791455507278442, "answer_score": null, "sibling_qid": "MUM-2022-09-1352-Q007", "sibling_text": "motor winding testing", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "How to carry out an IR test on a motor", "cross_family": false } ] }, { "qid": "CHE-2026-09-3921-Q014", "text": "Why phase current taken in no load condition for rewound motor?", "family": "Electrical - Motors & Starters", "subtopic": "MOTOR", "tid": "CHE-2026-09-3921", "tray": "new", "candidates": [ { "answer_id": "SPHS-B-005", "score": 0.5868628025054932, "sibling_score": 0.5868628025054932, "answer_score": null, "sibling_qid": "KOL-2019-12-2355-Q004", "sibling_text": "one phase is hot but current is same in the phases reason action to be taken", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "One lead is hot, but the current is the same in all three phases — what is the reason, and what action?", "cross_family": false }, { "answer_id": "ROTSTAT-C-005", "score": 0.5861603021621704, "sibling_score": 0.5861603021621704, "answer_score": null, "sibling_qid": "KOL-2019-12-2356-Q004", "sibling_text": "a big motor having same current in it s all 3 stator windings still getting heated reasons", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Rotor/stator heating, losses & magnetic saturation", "cross_family": false }, { "answer_id": "IMSP-001", "score": 0.5827261209487915, "sibling_score": 0.5827261209487915, "answer_score": null, "sibling_qid": "KOL-2023-07-3618-Q004", "sibling_text": "induction motor initial high current requirement why", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Why does an induction motor draw a high initial current and how do you avoid the inrush? What is the effect of starting a large motor on one DG only? What causes an overcurrent trip?", "cross_family": false } ] }, { "qid": "CHE-2026-09-3921-Q016", "text": "How to identify the 24 v emergency light", "family": "Electrical - Batteries & DC Systems", "subtopic": "", "tid": "CHE-2026-09-3921", "tray": "new", "candidates": [ { "answer_id": "LT-SRC-001", "score": 0.5944350957870483, "sibling_score": 0.5944350957870483, "answer_score": 0.5108138352632522, "sibling_qid": "CHE-2026-03-0346-Q004", "sibling_text": "how will you know emergency lights and what makes different from others and how it will operate 220 v and dc 24 volts", "sibling_family": "", "via": "sibling", "answer_title": "How are emergency lights identified, supplied, operated and tested?", "cross_family": false }, { "answer_id": "LT-SRC-007", "score": 0.5702434778213501, "sibling_score": 0.5702434778213501, "answer_score": 0.42804520726203915, "sibling_qid": "KOC-2025-05-1533-Q008", "sibling_text": "navigation light circuit draw and explain emergency source is from esb or battery", "sibling_family": "", "via": "sibling", "answer_title": "What is the navigation-light supply source, voltage and emergency arrangement?", "cross_family": false }, { "answer_id": "BDC-P02-04", "score": 0.5663372874259949, "sibling_score": 0.5663372874259949, "answer_score": null, "sibling_qid": "KOC-2026-05-0030-Q011", "sibling_text": "dc 24v how it is produced in ship does it have any connection with the main switch board how emergency batteries are connected internal", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "The ship's 24 V DC system — how it is produced, why DC, and what it supplies", "cross_family": false } ] }, { "qid": "CHE-2026-09-3922-Q004", "text": "⁠what is opposition current ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Eddy Current Losses", "tid": "CHE-2026-09-3922", "tray": "new", "candidates": [ { "answer_id": "ELEC-ELX-009", "score": 0.43211621046066284, "sibling_score": 0.43211621046066284, "answer_score": 0.32596403956413267, "sibling_qid": "KOL-2020-10-2398-Q001", "sibling_text": "what is conventional and actual flow of current why two different flows are considered", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Conventional and electron current flow", "cross_family": false }, { "answer_id": "RPT-B-002", "score": 0.4294922351837158, "sibling_score": 0.4294922351837158, "answer_score": 0.31882979571819303, "sibling_qid": "KOC-2025-12-1674-Q008", "sibling_text": "what is reverse current", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Reverse power vs reverse current — and AC vs DC machines", "cross_family": true }, { "answer_id": "VOLT-SYS-002", "score": 0.4243689775466919, "sibling_score": 0.4243689775466919, "answer_score": null, "sibling_qid": "KOC-2025-10-1591-Q004", "sibling_text": "what is voltage current", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What voltage is, and voltage in a single wire versus three-phase", "cross_family": false } ] }, { "qid": "CHE-2026-09-3922-Q005", "text": "⁠Types of reactance and explain ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Impedance", "tid": "CHE-2026-09-3922", "tray": "review", "candidates": [ { "answer_id": "TC-A-010", "score": 0.6807669997215271, "sibling_score": 0.6807669997215271, "answer_score": 0.4673178732395172, "sibling_qid": "KOL-2022-04-2557-Q004", "sibling_text": "what is reactance", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Impedance and the RC circuit — finding Xc and XL", "cross_family": false }, { "answer_id": "TCAP-B-010", "score": 0.6087592244148254, "sibling_score": 0.6087592244148254, "answer_score": 0.4935006469488144, "sibling_qid": "KOC-2025-03-1517-Q013", "sibling_text": "capacitor reactance what is it eqn", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Capacitive reactance and impedance — and what a capacitive load does", "cross_family": false }, { "answer_id": "TC-A-008", "score": 0.5995637774467468, "sibling_score": 0.5995637774467468, "answer_score": null, "sibling_qid": "CHE-2026-03-0353-Q013", "sibling_text": "difference between resistance and inductance", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "The inductor and the filter choke — and inductance in an HV system", "cross_family": false } ] }, { "qid": "CHE-2026-09-3923-Q003", "text": "Pilot ladder integrity test?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Pilot Ladder / Transfer", "tid": "CHE-2026-09-3923", "tray": "new", "candidates": [ { "answer_id": "LBT-TEST-B-003", "score": 0.5341979265213013, "sibling_score": 0.5341979265213013, "answer_score": null, "sibling_qid": "KOC-2024-12-0488-Q004", "sibling_text": "lifeboat load test he didn t accept static and dynamic test where you got this 1 1 and 1 5 he was asking about brake test falls test 6 davit test 4 5 and davit foundation test he accepted 6 and 4 5 times load test", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Winch/davit brake test — static vs dynamic, holding capacity, slippage", "cross_family": false }, { "answer_id": "LBT-TEST-B-001", "score": 0.5280887484550476, "sibling_score": 0.5280887484550476, "answer_score": null, "sibling_qid": "KOC-2026-05-2131-Q006", "sibling_text": "tests in lifeboat davits explain dynamic test how much is the proof load how it is loaded", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat/davit load-test proof loads and test conditions", "cross_family": false }, { "answer_id": "LBT-TEST-B-004", "score": 0.5231025815010071, "sibling_score": 0.5231025815010071, "answer_score": null, "sibling_qid": "KOC-2024-02-0305-Q009", "sibling_text": "int what are the tests done on life boat davits", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Tests carried out on the lifeboat/davit onboard (overview)", "cross_family": false } ] }, { "qid": "CHE-2026-09-3924-Q002", "text": "Explain Free surface effect? Why GM reduced ?", "family": "Ship Construction & Stability", "subtopic": "Free Surface Effect", "tid": "CHE-2026-09-3924", "tray": "new", "candidates": [ { "answer_id": "FSE-P03-003", "score": 0.6215674877166748, "sibling_score": 0.6215674877166748, "answer_score": null, "sibling_qid": "KOL-2019-10-0329-Q002", "sibling_text": "for free surface effect we know the change in virtual gm why", "sibling_family": "", "via": "sibling", "answer_title": "3. Formula, factors and calculation", "cross_family": false }, { "answer_id": "FSE-P02-001", "score": 0.5871961116790771, "sibling_score": 0.5871961116790771, "answer_score": 0.4528666913509369, "sibling_qid": "KOC-2024-10-0423-Q007", "sibling_text": "free surface effect and draw the reduction of gm and gz w r t fse", "sibling_family": "", "via": "sibling", "answer_title": "Reducing and correcting free surface effect in practice", "cross_family": false }, { "answer_id": "FSE-P01-001", "score": 0.5614176392555237, "sibling_score": 0.5614176392555237, "answer_score": 0.4133851632475853, "sibling_qid": "KOC-2026-02-0842-Q003", "sibling_text": "explain free surface effect", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "What is free surface effect? Explain the basic concept.", "cross_family": false } ] }, { "qid": "CHE-2026-09-3924-Q004", "text": "SSP who make?, is ship specific?", "family": "ISPS", "subtopic": "SSP / SSAS / SSO / CSO", "tid": "CHE-2026-09-3924", "tray": "review", "candidates": [ { "answer_id": "ISPS-SSP-P02-002", "score": 0.6549959778785706, "sibling_score": 0.6549959778785706, "answer_score": null, "sibling_qid": "KOC-2026-04-0914-Q006", "sibling_text": "who makes ssp", "sibling_family": "ISPS", "via": "sibling", "answer_title": "SSP — who prepares it, approval, and who has access", "cross_family": false }, { "answer_id": "ISPS-SSP-P02-003", "score": 0.6280763745307922, "sibling_score": 0.6280763745307922, "answer_score": 0.38962630480527877, "sibling_qid": "KOC-2024-01-0289-Q005", "sibling_text": "who make ssp ssa", "sibling_family": "ISPS", "via": "sibling", "answer_title": "Ship Security Assessment (SSA) and its relationship with the SSP", "cross_family": false }, { "answer_id": "ISPS-SSP-P01-001", "score": 0.5192773938179016, "sibling_score": 0.5192773938179016, "answer_score": 0.40914730131626126, "sibling_qid": "KOC-2023-07-0205-Q006", "sibling_text": "what is ssp", "sibling_family": "ISPS", "via": "sibling", "answer_title": "Ship Security Plan (SSP): purpose, scope & contents", "cross_family": false } ] }, { "qid": "CHE-2026-09-3924-Q006", "text": "SEEMP 2E role ?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "SEEMP I/II/III", "tid": "CHE-2026-09-3924", "tray": "new", "candidates": [ { "answer_id": "ISM-2E-A-001", "score": 0.5450766086578369, "sibling_score": 0.5450766086578369, "answer_score": 0.2603974178433418, "sibling_qid": "CHE-2026-02-0105-Q008", "sibling_text": "as a 2e role in ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Roles, duties and responsibilities of a Second Engineer under ISM/SMS", "cross_family": true }, { "answer_id": "LLC-SURV-P01-001", "score": 0.48337969183921814, "sibling_score": 0.48337969183921814, "answer_score": null, "sibling_qid": "MUM-2025-08-0386-Q010", "sibling_text": "2e role in load line", "sibling_family": "", "via": "sibling", "answer_title": "Load line survey preparation as Second Engineer: engine-room scope, machinery openings, tanks/vents, valves and overboard checks", "cross_family": false }, { "answer_id": "AV6-P05-01", "score": 0.45998454093933105, "sibling_score": 0.45998454093933105, "answer_score": null, "sibling_qid": "KOC-2025-03-0558-Q007", "sibling_text": "seemp 2", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP Part II — IMO DCS plan and contents", "cross_family": false } ] }, { "qid": "CHE-2026-09-3924-Q007", "text": "EEXI applicable to 2013 before ship?", "family": "MARPOL - General & Compliance", "subtopic": "Annex Overview", "tid": "CHE-2026-09-3924", "tray": "new", "candidates": [ { "answer_id": "EECS-015", "score": 0.45578685998916624, "sibling_score": null, "answer_score": 0.45578685998916624, "sibling_qid": "", "sibling_text": "15 decarbonisation dates when eedi eexi cii came in eexi eedi eeoi and their parts eedi in force 1 january 2013 new ships eexi and cii apply from 1 january 2023 2021 amendments in force november 2022", "sibling_family": "", "via": "answer_title", "answer_title": "15. Decarbonisation dates — when EEDI/EEXI/CII came in; EEXI/EEDI/EEOI and their parts", "cross_family": false }, { "answer_id": "SEEMP-123-B-001", "score": 0.4489920139312744, "sibling_score": 0.4489920139312744, "answer_score": null, "sibling_qid": "KOL-2023-12-0798-Q005", "sibling_text": "i think for this question along with eexi and cii its also imp to mention abt seemp pt 3 which was also adopted during mepc 76 and ships need to have a seemp pt 3 before 1 jan 2023 so they were satisfied", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP Part III — the ship's operational carbon-intensity (CII) plan", "cross_family": true }, { "answer_id": "EEDI-C-001", "score": 0.44572633504867554, "sibling_score": 0.44572633504867554, "answer_score": null, "sibling_qid": "KOL-2022-05-0640-Q003", "sibling_text": "eexi and eedi latest developments what is required by a particular ship regarding the same and cii", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "EEDI versus EEXI — what is the difference?", "cross_family": true } ] }, { "qid": "CHE-2026-09-3924-Q008", "text": "Six degree of motion & it's axis's?", "family": "Ship Construction & Stability", "subtopic": "Ship Motions / Six Degrees of Freedom", "tid": "CHE-2026-09-3924", "tray": "new", "candidates": [ { "answer_id": "EICU-MAN-P01-002", "score": 0.4965370297431946, "sibling_score": 0.4965370297431946, "answer_score": 0.3603655189275741, "sibling_qid": "KOC-2024-10-1012-Q003", "sibling_text": "me c manouvering and angle encoder", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "ME / ME-C / ME-B manoeuvring system — diagram and explanation", "cross_family": true }, { "answer_id": "TG-MOTOR-004", "score": 0.48525094985961914, "sibling_score": 0.48525094985961914, "answer_score": null, "sibling_qid": "CHE-2025-12-0325-Q006", "sibling_text": "6 turning gear how both sides rotation is achieving what kind of arrangement and what exactly happening", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "How does the turning gear motor run in both directions? Explain the reversing arrangement, what is inside the starter, and what happens when the push button is operated.", "cross_family": true }, { "answer_id": "ANG-ENC-006", "score": 0.48392757773399353, "sibling_score": 0.48392757773399353, "answer_score": null, "sibling_qid": "KOC-2022-11-2036-Q002", "sibling_text": "mec manoeuvring explanation angle encoder", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Using the signal: ME/ME-C timing, manoeuvring, injection and exhaust valve", "cross_family": true } ] }, { "qid": "CHE-2026-09-3924-Q009", "text": "SOLAS chapters & codes for oil tankers?", "family": "SOLAS - General", "subtopic": "SOLAS Chapters / Certificates", "tid": "CHE-2026-09-3924", "tray": "review", "candidates": [ { "answer_id": "SOLAS-OVW-001", "score": 0.6771290302276611, "sibling_score": 0.6771290302276611, "answer_score": null, "sibling_qid": "KOL-2021-10-0556-Q005", "sibling_text": "solas how many chapters and marpol annexs", "sibling_family": "", "via": "sibling", "answer_title": "SOLAS — how many chapters, and what each covers", "cross_family": false }, { "answer_id": "STCW-MAN-008", "score": 0.6639699339866638, "sibling_score": 0.6639699339866638, "answer_score": null, "sibling_qid": "KOC-2024-01-0271-Q003", "sibling_text": "stcw chapter names which chapter applicable to you gas tanker", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Explain STCW Chapter V and its special training requirements — including which chapter applies to a gas tanker, and what is required other than for tankers and passenger ships.", "cross_family": true }, { "answer_id": "TKR-TYPE-002", "score": 0.6589876413345337, "sibling_score": 0.6589876413345337, "answer_score": null, "sibling_qid": "KOL-2023-02-0720-Q008", "sibling_text": "solas chapter stating construction requirement of a chemical tanker", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "2. Chemical tanker IMO Types 1 / 2 / 3, cargo categories and the IBC Code", "cross_family": true } ] }, { "qid": "CHE-2026-09-3924-Q012", "text": "Effervescence & surface tension?", "family": "SOLAS - Fire Safety", "subtopic": "Foam System / Monitor", "tid": "CHE-2026-09-3924", "tray": "new", "candidates": [ { "answer_id": "FSE-P01-001", "score": 0.5745623111724854, "sibling_score": 0.5745623111724854, "answer_score": null, "sibling_qid": "KOC-2023-12-0261-Q005", "sibling_text": "free surface effect", "sibling_family": "", "via": "sibling", "answer_title": "What is free surface effect? Explain the basic concept.", "cross_family": false }, { "answer_id": "FSE-P02-001", "score": 0.4030007004737854, "sibling_score": null, "answer_score": 0.4030007004737854, "sibling_qid": "", "sibling_text": "reducing and correcting free surface effect in practice fse is a virtual rise of g i e a virtual loss of gm m is fixed by the waterplane and does not move free surface correction rise of g i tank w in metres the liquid density is in it not just geometry", "sibling_family": "", "via": "answer_title", "answer_title": "Reducing and correcting free surface effect in practice", "cross_family": false }, { "answer_id": "FSE-P03-001", "score": 0.37493079602718354, "sibling_score": null, "answer_score": 0.37493079602718354, "sibling_qid": "", "sibling_text": "1 draw and explain free surface effect a free surface exists whenever a tank is slack not empty not pressed up on heeling liquid shifts to the low side the wedge transfer moves the liquid s centroid", "sibling_family": "", "via": "answer_title", "answer_title": "1. Draw and explain free surface effect", "cross_family": false } ] }, { "qid": "CHE-2026-09-3925-Q001", "text": "Functions of Nozzle ring?", "family": "Turbocharger", "subtopic": "Turbocharger Construction & Surging", "tid": "CHE-2026-09-3925", "tray": "new", "candidates": [ { "answer_id": "TCS-059-P04-004", "score": 0.6414422988891602, "sibling_score": 0.6414422988891602, "answer_score": 0.5031994491815567, "sibling_qid": "KOL-2025-06-1808-Q014", "sibling_text": "what if no nozzle ring", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Nozzle ring: function, gas path, and nozzle type", "cross_family": false }, { "answer_id": "TC-CONST-004", "score": 0.6363865733146667, "sibling_score": 0.6363865733146667, "answer_score": 0.48070359230041504, "sibling_qid": "KOL-2024-05-4040-Q002", "sibling_text": "purpose of nozzle ring is it stationary or rotating", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbine-side components: nozzle rings, vanes and blade fitting", "cross_family": false }, { "answer_id": "VTA-TC-002", "score": 0.5873534679412842, "sibling_score": 0.5873534679412842, "answer_score": null, "sibling_qid": "KOL-2018-04-1369-Q007", "sibling_text": "latest development w r t nozzle ring i told variable turbine geometry but still told me to ask other and come", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Advantages, applications, and where VTA sits among recent TC developments", "cross_family": false } ] }, { "qid": "CHE-2026-09-3925-Q004", "text": "Governor - Parts full functions?", "family": "Automation & Controls", "subtopic": "Governor (Mechanical / Electronic)", "tid": "CHE-2026-09-3925", "tray": "new", "candidates": [ { "answer_id": "GOV-P02-002", "score": 0.6230960488319397, "sibling_score": 0.6230960488319397, "answer_score": 0.3940283179283142, "sibling_qid": "MUM-2026-05-3194-Q007", "sibling_text": "components of governor", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Electronic governor — components & parts", "cross_family": false }, { "answer_id": "GOV-082-P01-017", "score": 0.6213337779045105, "sibling_score": 0.6213337779045105, "answer_score": null, "sibling_qid": "KOL-2018-03-2179-Q003", "sibling_text": "governor motor main function", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "The AE governor speed-setting motor and load sharing in parallel", "cross_family": false }, { "answer_id": "GOV-082-P01-014", "score": 0.6139532327651978, "sibling_score": 0.6139532327651978, "answer_score": null, "sibling_qid": "KOC-2024-02-2042-Q009", "sibling_text": "governor what all knows are there and function", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "The governor 'knobs' — external adjustments and naming the parts", "cross_family": false } ] }, { "qid": "CHE-2026-09-3925-Q005", "text": "Lube oil foaming?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "LO Cooler", "tid": "CHE-2026-09-3925", "tray": "new", "candidates": [ { "answer_id": "LO-TEST-P02-003", "score": 0.6291245818138123, "sibling_score": 0.6291245818138123, "answer_score": null, "sibling_qid": "MUM-2026-09-3878-Q006", "sibling_text": "emulsification of lube oil and actions to be taken", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Abnormal LO condition: sump rise, colour, high temperature/pressure, lacquer, deterioration", "cross_family": false }, { "answer_id": "LO-CLR-004", "score": 0.5825537443161011, "sibling_score": 0.5825537443161011, "answer_score": null, "sibling_qid": "KOL-2021-07-3434-Q004", "sibling_text": "me lube oil cooler pluging", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main-engine LO cooler — plugging a leaking tube: what do you do?", "cross_family": false }, { "answer_id": "LO-TEST-P01-005", "score": 0.58228999376297, "sibling_score": 0.58228999376297, "answer_score": 0.3993115037679672, "sibling_qid": "MUM-2023-06-2734-Q004", "sibling_text": "lubeoil shows microrbial growth action", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Lube-oil properties, types and selection by duty", "cross_family": false } ] }, { "qid": "CHE-2026-09-3925-Q008", "text": "TIG & MIG ?", "family": "Workshop & Welding", "subtopic": "Plasma / Arc / TIG / MIG", "tid": "CHE-2026-09-3925", "tray": "new", "candidates": [ { "answer_id": "WELD-PATM-003", "score": 0.627012312412262, "sibling_score": 0.627012312412262, "answer_score": 0.24659065604209898, "sibling_qid": "KOL-2021-07-3412-Q006", "sibling_text": "explain tig", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "TIG welding – process, shielding gas, advantages, uses", "cross_family": false }, { "answer_id": "WELD-PATM-005", "score": 0.45227354764938354, "sibling_score": 0.45227354764938354, "answer_score": 0.2914318978786468, "sibling_qid": "MUM-2026-09-3912-Q020", "sibling_text": "what is tig mig welding full details", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "TIG vs MIG – differences, uses, advantages", "cross_family": false }, { "answer_id": "TCS-059-P04-001", "score": 0.4209175705909729, "sibling_score": 0.4209175705909729, "answer_score": null, "sibling_qid": "MUM-2025-05-0273-Q013", "sibling_text": "what kind of t c on your me", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharger construction and main parts", "cross_family": true } ] }, { "qid": "CHE-2026-09-3926-Q001", "text": "Written results? Last attempt questions ?", "family": "Status & Introduction", "subtopic": "WRITTEN STATUS", "tid": "CHE-2026-09-3926", "tray": "new", "candidates": [ { "answer_id": "CFF-P02-001", "score": 0.5180962681770325, "sibling_score": 0.5180962681770325, "answer_score": null, "sibling_qid": "KOL-2017-09-1324-Q005", "sibling_text": "fatigue failure lots of cross qst with all qst finally done with cl 2 thank you all for your support and best of luck for who r in que", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Fatigue failure — what it is and where it occurs", "cross_family": true }, { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.4992966651916504, "sibling_score": 0.4992966651916504, "answer_score": null, "sibling_qid": "MUM-2026-01-1252-Q001", "sibling_text": "status of results oral written exam", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": true }, { "answer_id": "RES-BUOY-001", "score": 0.49526387453079224, "sibling_score": 0.49526387453079224, "answer_score": null, "sibling_qid": "MUM-2023-10-0138-Q007", "sibling_text": "residual bouyancy some questions don t remember and lot of cross questions to every question which i might have missed", "sibling_family": "", "via": "sibling", "answer_title": "What reserve buoyancy is, and what it tells you", "cross_family": false } ] }, { "qid": "CHE-2026-09-3926-Q004", "text": "Ship is 13 year old, what are the certificates and maintenance need to do? Annually maintenance is not accepted, he said no requirement like that ?", "family": "", "subtopic": "", "tid": "CHE-2026-09-3926", "tray": "review", "candidates": [ { "answer_id": "CO2-SYS-004", "score": 0.6811192035675049, "sibling_score": 0.6811192035675049, "answer_score": null, "sibling_qid": "CHE-2025-08-0038-Q001", "sibling_text": "co2 fire fighting system certificates for 13 years old ship", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fixed CO2 total-flooding system — overview, working and arrangements", "cross_family": false }, { "answer_id": "AVICERT-006", "score": 0.645407497882843, "sibling_score": 0.645407497882843, "answer_score": null, "sibling_qid": "MUM-2025-08-0378-Q008", "sibling_text": "all certificates on ship as per marpol", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What certificates are carried on board under all the MARPOL annexes, Annex I to Annex VI?", "cross_family": false }, { "answer_id": "MARPOL-OV-001", "score": 0.6353052854537964, "sibling_score": 0.6353052854537964, "answer_score": null, "sibling_qid": "KOC-2024-01-0278-Q017", "sibling_text": "marpol annex required for your ship and certificates", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Which MARPOL annexes apply to your ship?", "cross_family": false } ] }, { "qid": "CHE-2026-09-3926-Q006", "text": "What is amendment? How amendment enter into force?", "family": "IMO Structure & Conventions", "subtopic": "IMO / Committees / Codes", "tid": "CHE-2026-09-3926", "tray": "new", "candidates": [ { "answer_id": "IMO-CODES-P02-001", "score": 0.5182366371154785, "sibling_score": 0.5182366371154785, "answer_score": null, "sibling_qid": "KOL-2024-11-0882-Q001", "sibling_text": "amendment and protocol told all the answer correctly but not accepting anything even explained with example not accepting it telling u r fail in this question", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "IMO instruments: convention, code, protocol, amendment, regulation, resolution and rule", "cross_family": false }, { "answer_id": "COT-P02-10", "score": 0.5025713443756104, "sibling_score": 0.5025713443756104, "answer_score": null, "sibling_qid": "MUM-2026-06-3653-Q004", "sibling_text": "seemp latest amendment", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "State and explain the latest statutory amendments affecting tanker inert-gas systems, including applicability and practical changes on board.", "cross_family": true }, { "answer_id": "AFS-309-002", "score": 0.5021858215332031, "sibling_score": 0.5021858215332031, "answer_score": null, "sibling_qid": "MUM-2026-05-3231-Q003", "sibling_text": "new amendment in afs", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "The latest AFS amendment — cybutryne control", "cross_family": true } ] }, { "qid": "CHE-2026-09-3927-Q002", "text": "When will you renew nozzle ring and removal procedure?", "family": "Turbocharger", "subtopic": "Turbocharger Construction & Surging", "tid": "CHE-2026-09-3927", "tray": "new", "candidates": [ { "answer_id": "TC-CONST-004", "score": 0.6153988242149353, "sibling_score": 0.6153988242149353, "answer_score": null, "sibling_qid": "CHE-2025-11-0456-Q003", "sibling_text": "nozzle ring checks function how it is fitted indications for when to renew it", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbine-side components: nozzle rings, vanes and blade fitting", "cross_family": false }, { "answer_id": "TCS-059-P04-004", "score": 0.5684378743171692, "sibling_score": 0.5684378743171692, "answer_score": null, "sibling_qid": "KOL-2025-06-1808-Q014", "sibling_text": "what if no nozzle ring", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Nozzle ring: function, gas path, and nozzle type", "cross_family": false }, { "answer_id": "TURBO-CS-P03-014", "score": 0.559370756149292, "sibling_score": 0.559370756149292, "answer_score": 0.354327592253685, "sibling_qid": "KOL-2021-08-3441-Q003", "sibling_text": "t c nozzle ring cleaning", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Routine maintenance and water-washing; nozzle-ring cleaning", "cross_family": false } ] }, { "qid": "CHE-2026-09-3927-Q006", "text": "What is lubricity, unit and how will you find out?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "LO Test / Analysis", "tid": "CHE-2026-09-3927", "tray": "new", "candidates": [ { "answer_id": "LO-TEST-P02-001", "score": 0.6228953003883362, "sibling_score": 0.6228953003883362, "answer_score": null, "sibling_qid": "CHE-2025-08-0208-Q002", "sibling_text": "what is lubricity unit max value and formula", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Lube-oil additives; detergency, dispersancy, lubricity and friction modifiers", "cross_family": false }, { "answer_id": "LO-TEST-P02-005", "score": 0.5507487654685974, "sibling_score": 0.5507487654685974, "answer_score": 0.3993462085723877, "sibling_qid": "KOL-2025-12-2031-Q005", "sibling_text": "lubricant selection how will you define a lubricant", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Types of lubrication; defining a lubricant; lubricity", "cross_family": false }, { "answer_id": "HYDRO-LUB-001", "score": 0.5471873879432678, "sibling_score": 0.5471873879432678, "answer_score": 0.40784017145633694, "sibling_qid": "KOC-2026-03-1122-Q009", "sibling_text": "lubrication definition", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "1. Lubrication, tribology & the types of lubrication", "cross_family": false } ] }, { "qid": "CHE-2026-09-3927-Q008", "text": "Acetylene pipe is leaking between gas bottle room and work shop how will you find out?", "family": "SOLAS - Fire Safety", "subtopic": "CO2 System", "tid": "CHE-2026-09-3927", "tray": "review", "candidates": [ { "answer_id": "CO2-SYS-005", "score": 0.6815034747123718, "sibling_score": 0.6815034747123718, "answer_score": null, "sibling_qid": "KOC-2026-04-0904-Q002", "sibling_text": "how to identify a leaking co2 bottle inside the co2 room", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 system safeties, CO2-room requirements, alarms and ventilation", "cross_family": false }, { "answer_id": "CO2-SYS-006", "score": 0.6632054448127747, "sibling_score": 0.6632054448127747, "answer_score": null, "sibling_qid": "KOC-2025-01-0510-Q012", "sibling_text": "one of the co2 bottle is leaking how will come to know", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 bottles, manifolds, pilot cylinders and valve components", "cross_family": false }, { "answer_id": "CO2-SYS-002", "score": 0.6201987862586975, "sibling_score": 0.6201987862586975, "answer_score": null, "sibling_qid": "CHE-2026-05-0613-Q002", "sibling_text": "co2 room inspection and how to find out holed co2 bottle on take over vessel", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 maintenance, inspection, testing and survey routines", "cross_family": false } ] }, { "qid": "CHE-2026-09-3927-Q009", "text": "What is white metal and the thickness of white metal ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "White Metal & Material", "tid": "CHE-2026-09-3927", "tray": "review", "candidates": [ { "answer_id": "WMAT-170-001", "score": 0.6630021929740906, "sibling_score": 0.6630021929740906, "answer_score": 0.39852545261383054, "sibling_qid": "CHE-2026-08-3871-Q002", "sibling_text": "bearing white metal thickness and white metal purpose", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "White metal (Babbitt): composition, purpose, properties, layer thickness", "cross_family": false }, { "answer_id": "WMAT-170-003", "score": 0.6539379954338074, "sibling_score": 0.6539379954338074, "answer_score": null, "sibling_qid": "CHE-2025-12-0224-Q002", "sibling_text": "thin layer bearing where used thickness of white metal and white metal function", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Thin-shell and thick-shell bearings: design, advantages, developments", "cross_family": false }, { "answer_id": "WMAT-170-002", "score": 0.3523782968521118, "sibling_score": null, "answer_score": 0.3523782968521118, "sibling_qid": "", "sibling_text": "bi metal and tri metal bearings layers materials functions advantages bi metal steel back one lining white metal or aluminium tin simpler white metal bi metal is limited by fatigue strength tri metal from back outward steel back copper lead or lead bronze lining load fatigue nickel diffusion barrier soft overlay lead tin lead indium representative about 20 to 40 micron plus on some makes a thin pr", "sibling_family": "", "via": "answer_title", "answer_title": "Bi-metal and tri-metal bearings: layers, materials, functions, advantages", "cross_family": false } ] }, { "qid": "CHE-2026-09-3927-Q010", "text": "Location of white metal on main engine ", "family": "2-Stroke - Operations & Casualty", "subtopic": "Decarb / Overhaul Prep", "tid": "CHE-2026-09-3927", "tray": "new", "candidates": [ { "answer_id": "SMK-FUNL-BF01-002", "score": 0.5377458333969116, "sibling_score": 0.5377458333969116, "answer_score": 0.3536797523498535, "sibling_qid": "MUM-2024-07-1084-Q019", "sibling_text": "white smoke is coming from main engine funnel", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "White smoke is coming from the main-engine funnel — what does it mean?", "cross_family": false }, { "answer_id": "HT-TCS-B-002", "score": 0.4984942078590393, "sibling_score": 0.4984942078590393, "answer_score": null, "sibling_qid": "KOL-2022-10-1926-Q008", "sibling_text": "component which is case hardened in main engine", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Case & surface hardening — methods and engine components", "cross_family": true }, { "answer_id": "SBPG-A-002", "score": 0.49477285146713257, "sibling_score": 0.49477285146713257, "answer_score": null, "sibling_qid": "KOL-2025-12-1827-Q002", "sibling_text": "neutral space in stuffing box of main engine", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston-rod gland detail — neutral space, and the soft-gland terms (packing, lantern ring, neck bush)", "cross_family": true } ] }, { "qid": "CHE-2026-09-3928-Q002", "text": "IG Inserting, purging, gas freeing ?", "family": "Cargo Ops - Tankers", "subtopic": "IG System", "tid": "CHE-2026-09-3928", "tray": "review", "candidates": [ { "answer_id": "TCM-374-005", "score": 0.6830300688743591, "sibling_score": 0.6830300688743591, "answer_score": 0.49367417097091676, "sibling_qid": "CHE-2026-03-0132-Q006", "sibling_text": "ig gas freeing operations why and when and why only through ig", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Gas-freeing a tanker after discharge or before dry dock (why through the IG system)", "cross_family": false }, { "answer_id": "COT-P02-12", "score": 0.6712388396263123, "sibling_score": 0.6712388396263123, "answer_score": 0.4484026402235031, "sibling_qid": "KOC-2025-10-0693-Q004", "sibling_text": "what is purging and gas freeing", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Explain and distinguish cargo-tank inerting, purging, gas freeing and ventilation, including dilution/displacement methods, atmosphere targets and cargo-pump precautions.", "cross_family": false }, { "answer_id": "COT-P02-13", "score": 0.5915795564651489, "sibling_score": 0.5915795564651489, "answer_score": null, "sibling_qid": "MUM-2021-05-0009-Q004", "sibling_text": "cargo tank is loaded and on the top there is an ig oxygen goes up to 8 or more how will you reduce oxygen content from where will you vent if putting more ig wanted to hear about purge line", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What indications and automatic actions occur when inert-gas oxygen is high, and how do you safely reduce excessive oxygen in a loaded cargo tank?", "cross_family": false } ] }, { "qid": "CHE-2026-09-3928-Q003", "text": "what is ship management meeting ?", "family": "", "subtopic": "", "tid": "CHE-2026-09-3928", "tray": "new", "candidates": [ { "answer_id": "ISM-DPA-006", "score": 0.6053077578544617, "sibling_score": 0.6053077578544617, "answer_score": null, "sibling_qid": "CHE-2026-05-0586-Q016", "sibling_text": "going for management review meeting with dpa from ship how will u present for engine room he is expecting before meeting you have to conduct the meeting in engine room and ask for crews problem", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Presenting the engine room in a management review meeting with the DPA", "cross_family": false }, { "answer_id": "ISM-AUD-P02-006", "score": 0.5656771659851074, "sibling_score": 0.5656771659851074, "answer_score": null, "sibling_qid": "KOL-2025-09-1070-Q004", "sibling_text": "managemt review who does it and why is it done or required on ship", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Master's review, company / management review and change management", "cross_family": false }, { "answer_id": "IMO-CC-P01-001", "score": 0.5090749263763428, "sibling_score": 0.5090749263763428, "answer_score": null, "sibling_qid": "KOL-2025-10-1109-Q001", "sibling_text": "imo structure meeting interval of assembly", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Explain the structure and organs of IMO — Assembly, Council, Committees and Secretariat.", "cross_family": false } ] }, { "qid": "CHE-2026-09-3928-Q010", "text": "what is earthing? And the insulated earth system explains.", "family": "Electrical - Distribution & Earthing", "subtopic": "Neutral Connection / Earthing", "tid": "CHE-2026-09-3928", "tray": "new", "candidates": [ { "answer_id": "EARTH-NEU-02A-002", "score": 0.6458761096000671, "sibling_score": 0.6458761096000671, "answer_score": 0.45191344916820525, "sibling_qid": "KOL-2026-01-2953-Q004", "sibling_text": "insulated earth system neutral earth system", "sibling_family": "", "via": "sibling", "answer_title": "Insulated neutral vs earthed neutral — how each behaves, where each is used, which is safer", "cross_family": false }, { "answer_id": "ENR-P02B-001", "score": 0.5686284303665161, "sibling_score": 0.5686284303665161, "answer_score": 0.4207006573677063, "sibling_qid": "KOL-2021-07-2470-Q003", "sibling_text": "earthing system and advantages", "sibling_family": "", "via": "sibling", "answer_title": "Ship’s earthing / distribution system — insulated LV neutral, earthed (Class-approved) HV neutral", "cross_family": false }, { "answer_id": "EF-SHAFT-ERES-P05-001", "score": 0.5655125379562378, "sibling_score": 0.5655125379562378, "answer_score": null, "sibling_qid": "NOI-2026-09-0014-Q002", "sibling_text": "neutral earth and neutral insulated details advantages etc", "sibling_family": "Electrical - Distribution & Earthing", "via": "sibling", "answer_title": "Earth fault detection, indication and location", "cross_family": false } ] }, { "qid": "CHE-2026-09-3928-Q011", "text": "Cable survey", "family": "Surveys - Statutory", "subtopic": "Surveys - General", "tid": "CHE-2026-09-3928", "tray": "new", "candidates": [ { "answer_id": "ELEC-SURV-008", "score": 0.6029061675071716, "sibling_score": 0.6029061675071716, "answer_score": null, "sibling_qid": "KOC-2025-03-1502-Q007", "sibling_text": "what all electrical surveys", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Types & scope of electrical surveys onboard", "cross_family": false }, { "answer_id": "ELEC-SURV-004", "score": 0.5984259247779846, "sibling_score": 0.5984259247779846, "answer_score": null, "sibling_qid": "KOC-2024-10-1420-Q005", "sibling_text": "electrical surveys", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Preparing & carrying out the survey as Second Engineer", "cross_family": false }, { "answer_id": "SURV-GEN-001", "score": 0.562756359577179, "sibling_score": 0.562756359577179, "answer_score": null, "sibling_qid": "KOL-2021-12-0580-Q003", "sibling_text": "all surveys on ship", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What statutory surveys are carried out on board?", "cross_family": false } ] }, { "qid": "CHE-2026-09-3929-Q004", "text": "Closed loop & open loop EGCS, explain & differences ?", "family": "Heat Exchangers & Coolers", "subtopic": "Closed Loop / Open Loop Cooling", "tid": "CHE-2026-09-3929", "tray": "new", "candidates": [ { "answer_id": "CTRL-TL-003", "score": 0.5451736450195312, "sibling_score": 0.5451736450195312, "answer_score": 0.4445724457502365, "sibling_qid": "KOL-2021-01-2413-Q005", "sibling_text": "closed loop open loop electrical example", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Feedback, open/closed loop, offset, hysteresis, P-I-D action", "cross_family": true }, { "answer_id": "CTRL-005", "score": 0.5354856252670288, "sibling_score": 0.5354856252670288, "answer_score": 0.4824732840061188, "sibling_qid": "KOC-2022-02-0958-Q006", "sibling_text": "what is open loop system and close loop system in control systems give examples for open loop and closed loop system", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Open-loop versus closed-loop control", "cross_family": true }, { "answer_id": "EGCS-393-002", "score": 0.5160225629806519, "sibling_score": 0.5160225629806519, "answer_score": null, "sibling_qid": "CHE-2026-04-0158-Q003", "sibling_text": "open loop closed loop supper test rest value", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "EGCS types, components and working — open, closed and hybrid loop", "cross_family": true } ] }, { "qid": "CHE-2026-09-3930-Q003S2", "text": "Explain Shell expansion plan?", "family": "Ship Construction & Stability", "subtopic": "Shell Expansion Plan", "tid": "CHE-2026-09-3930", "tray": "review", "candidates": [ { "answer_id": "SHELL-PLT-A-001", "score": 0.8291319012641907, "sibling_score": 0.8291319012641907, "answer_score": 0.349197082221508, "sibling_qid": "MUM-2026-09-3867-Q003", "sibling_text": "explain shell expansion plan", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "The shell expansion plan, and how you identify a plate", "cross_family": false }, { "answer_id": "GA-GI-DWG-001", "score": 0.8291319012641907, "sibling_score": 0.8291319012641907, "answer_score": 0.40164787173271177, "sibling_qid": "MUM-2026-07-3757-Q006", "sibling_text": "explain shell expansion plan", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "1. What is a shell expansion plan and where is it used?", "cross_family": false }, { "answer_id": "GRB-321-001", "score": 0.8275472521781921, "sibling_score": 0.8275472521781921, "answer_score": null, "sibling_qid": "MUM-2026-02-0770-Q006", "sibling_text": "explain shell expansion plan", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Garbage Record Book — requirements and criteria", "cross_family": false } ] }, { "qid": "CHE-2026-09-3930-Q007", "text": "Permits in E/R ?", "family": "Risk & Safety Management", "subtopic": "Permit to Work / Enclosed Space", "tid": "CHE-2026-09-3930", "tray": "new", "candidates": [ { "answer_id": "ESE-P01-003", "score": 0.5858870148658752, "sibling_score": 0.5858870148658752, "answer_score": 0.29280443489551544, "sibling_qid": "KOL-2022-03-0607-Q003", "sibling_text": "enclosed entry what checks what is permit", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "General enclosed-space entry procedure as second engineer", "cross_family": false }, { "answer_id": "SOX-LIMIT-003", "score": 0.45101356506347656, "sibling_score": 0.45101356506347656, "answer_score": null, "sibling_qid": "KOL-2019-12-0373-Q011", "sibling_text": "sox control in er", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Controlling SOx onboard — compliant fuel, scrubbers, alternatives", "cross_family": true }, { "answer_id": "CERT-LIST-P02-005", "score": 0.420187771320343, "sibling_score": 0.420187771320343, "answer_score": null, "sibling_qid": "KOL-2023-10-4028-Q011", "sibling_text": "class certificates issued for e r", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Class certificate / classification certificate", "cross_family": true } ] }, { "qid": "CHE-2026-09-3930-Q008", "text": "How will you issue the permit. (any permit) ?", "family": "Risk & Safety Management", "subtopic": "Permit to Work / Enclosed Space", "tid": "CHE-2026-09-3930", "tray": "new", "candidates": [ { "answer_id": "ESE-P01-003", "score": 0.5222545862197876, "sibling_score": 0.5222545862197876, "answer_score": 0.3146616220474243, "sibling_qid": "KOL-2022-03-0607-Q003", "sibling_text": "enclosed entry what checks what is permit", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "General enclosed-space entry procedure as second engineer", "cross_family": false }, { "answer_id": "ESE-P01-009", "score": 0.41572776436805725, "sibling_score": 0.41572776436805725, "answer_score": null, "sibling_qid": "CHE-2026-09-3920-Q012", "sibling_text": "what gas we will check under enclosed permit", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "Atmosphere checks, gases to test and safe entry limits", "cross_family": false }, { "answer_id": "NPDES-330-001", "score": 0.4095408022403717, "sibling_score": 0.4095408022403717, "answer_score": 0.30308032482862474, "sibling_qid": "MUM-2024-08-0198-Q002", "sibling_text": "general vessel permit", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Explain VGP / General Vessel Permit / NPDES and its purpose under US vessel-discharge compliance", "cross_family": true } ] }, { "qid": "CHE-2026-09-3930-Q009", "text": "Afloat working requirement?", "family": "Risk & Safety Management", "subtopic": "Permit to Work / Enclosed Space", "tid": "CHE-2026-09-3930", "tray": "new", "candidates": [ { "answer_id": "LLC-P05-001", "score": 0.5049229860305786, "sibling_score": 0.5049229860305786, "answer_score": null, "sibling_qid": "KOL-2022-04-0625-Q007", "sibling_text": "freeboard requirements", "sibling_family": "", "via": "sibling", "answer_title": "Freeboard, deck line, Plimsoll mark, assignment and scantling draft", "cross_family": false }, { "answer_id": "LRHR-A-002", "score": 0.5033442974090576, "sibling_score": 0.5033442974090576, "answer_score": null, "sibling_qid": "KOL-2016-10-0017-Q001", "sibling_text": "requirement for having liferaft in fwd", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "The forward liferaft — the 100 m rule and why it is different", "cross_family": true }, { "answer_id": "DUS-P2-06", "score": 0.4946768879890442, "sibling_score": 0.4946768879890442, "answer_score": 0.37823129892349244, "sibling_qid": "KOL-2019-06-0289-Q005", "sibling_text": "conditions for afloat drydock", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Conditions for floating (afloat) drydock and ‘drydock afloat check’", "cross_family": true } ] }, { "qid": "CHE-2026-09-3930-Q010", "text": "Explain Ism and its parts? He asked after renewal what will happen and how the certificate issued.", "family": "Surveys - Statutory", "subtopic": "Certificates List", "tid": "CHE-2026-09-3930", "tray": "new", "candidates": [ { "answer_id": "CERT-LIST-P02-002", "score": 0.6123182773590088, "sibling_score": 0.6123182773590088, "answer_score": null, "sibling_qid": "KOL-2026-05-4089-Q005", "sibling_text": "explain ism and certificates", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Document of Compliance, Certificate and Statement of Compliance", "cross_family": false }, { "answer_id": "ISM-SMC-B-005", "score": 0.5758295059204102, "sibling_score": 0.5758295059204102, "answer_score": null, "sibling_qid": "CHE-2025-12-0097-Q004", "sibling_text": "ism who will issue certificate and validity", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Obtaining the DOC and SMC — who issues, who audits", "cross_family": true }, { "answer_id": "ISM-SMCDOC-A-001", "score": 0.5629358291625977, "sibling_score": 0.5629358291625977, "answer_score": null, "sibling_qid": "MUM-2026-09-3881-Q010", "sibling_text": "explain ism and certificates", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM certificates: the DOC and SMC family", "cross_family": true } ] }, { "qid": "CHE-2026-09-3930-Q011", "text": "Net zero fuel(GFI) ? explain ? when it is started and what is the base line.", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Pump Overhaul", "tid": "CHE-2026-09-3930", "tray": "new", "candidates": [ { "answer_id": "FP-OVHL-005", "score": 0.4346891939640045, "sibling_score": 0.4346891939640045, "answer_score": null, "sibling_qid": "KOL-2017-05-1295-Q003", "sibling_text": "zero setting of fuel p p", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel pump zero setting — what it is, why, and how to set it", "cross_family": false }, { "answer_id": "GFI-572-002", "score": 0.4304310083389282, "sibling_score": 0.4304310083389282, "answer_score": 0.3935708224773407, "sibling_qid": "CHE-2026-04-0134-Q008", "sibling_text": "what is gfi greenhouse gas fuel intensity entry into force 2027", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Significance of GFI and its implementation / entry-into-force year", "cross_family": true }, { "answer_id": "GFI-572-004", "score": 0.3963466495275497, "sibling_score": null, "answer_score": 0.3963466495275497, "sibling_qid": "", "sibling_text": "mepc 83 gfi well to wake imo net zero fund and remedial units gfi on a well to wake basis reference 93 3 gco2eq mj 2008 declining via an annual z factor two target lines the looser base target and the stricter direct compliance target every ship must aim for the direct compliance target", "sibling_family": "", "via": "answer_title", "answer_title": "MEPC 83 GFI: well-to-wake, IMO Net-Zero Fund and remedial units", "cross_family": false } ] }, { "qid": "CHE-2026-09-3930-Q012", "text": "Ism objective and parts? ( He is asking like what is no .10. what is no.4.)? internal ques", "family": "ISM Code", "subtopic": "ISM - Elements/Objectives", "tid": "CHE-2026-09-3930", "tray": "new", "candidates": [ { "answer_id": "ISM-ELEM-003", "score": 0.5449502468109131, "sibling_score": 0.5449502468109131, "answer_score": 0.41068241894245144, "sibling_qid": "KOC-2026-02-0804-Q014", "sibling_text": "what is ism code 10", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": false }, { "answer_id": "ISM-AUD-P02-002", "score": 0.5181941390037537, "sibling_score": 0.5181941390037537, "answer_score": null, "sibling_qid": "KOC-2026-01-2087-Q013", "sibling_text": "what is the purpose of ism internal", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM Code — what it is, purpose, objectives and structure", "cross_family": false }, { "answer_id": "ISM-SMC-B-005", "score": 0.5104497075080872, "sibling_score": 0.5104497075080872, "answer_score": null, "sibling_qid": "KOC-2024-03-0318-Q002", "sibling_text": "ism code no of parts contents and how to get the ism certification he wants to hear sms implementation procedure then he asked will u get certificate he wants to hear interim certification", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Obtaining the DOC and SMC — who issues, who audits", "cross_family": false } ] }, { "qid": "CHE-2026-09-3930-Q016", "text": "What are the development in propeller? INTERNAL QUES", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Propeller Curve", "tid": "CHE-2026-09-3930", "tray": "new", "candidates": [ { "answer_id": "PERF-CRV-001", "score": 0.5433799028396606, "sibling_score": 0.5433799028396606, "answer_score": null, "sibling_qid": "CHE-2026-09-3930-Q015", "sibling_text": "what is propeller draw internal ques", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Propeller curve — what it is, use and margin", "cross_family": false }, { "answer_id": "SHAFT-CPP-005", "score": 0.5312070250511169, "sibling_score": 0.5312070250511169, "answer_score": 0.4116339385509491, "sibling_qid": "MUM-2026-06-3626-Q005", "sibling_text": "latest developments in propeller", "sibling_family": "", "via": "sibling", "answer_title": "5. Propeller types, design criteria & latest developments", "cross_family": false }, { "answer_id": "MCC-MEB-P02-001", "score": 0.49410122632980347, "sibling_score": 0.49410122632980347, "answer_score": null, "sibling_qid": "MUM-2026-07-3762-Q017", "sibling_text": "development on me engines", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Trace the development from MC / SMC engines to MC-C and ME engines", "cross_family": false } ] }, { "qid": "CHE-2026-09-3931-Q001", "text": "Latest development in Turbo charger ?", "family": "Turbocharger", "subtopic": "", "tid": "CHE-2026-09-3931", "tray": "review", "candidates": [ { "answer_id": "TC-GEN-001", "score": 0.7864560484886169, "sibling_score": 0.7864560484886169, "answer_score": 0.5717465043067932, "sibling_qid": "CHE-2026-08-3879-Q005", "sibling_text": "latest development in turbo charger", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "What are the latest developments in turbochargers?", "cross_family": false }, { "answer_id": "TC-CS-P01-002", "score": 0.7612913250923157, "sibling_score": 0.7612913250923157, "answer_score": 0.5530427932739258, "sibling_qid": "KOC-2022-01-0951-Q003", "sibling_text": "turbocharger latest advancement", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "B·Advancements / new developments in turbocharging", "cross_family": false }, { "answer_id": "TCS-059-P04-021", "score": 0.7559704184532166, "sibling_score": 0.7559704184532166, "answer_score": null, "sibling_qid": "KOL-2024-12-1961-Q008", "sibling_text": "latest development of turbocharging system hybrid turbocharger", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Hybrid / turbo-compound turbocharger", "cross_family": false } ] }, { "qid": "CHE-2026-09-3931-Q002", "text": "what is fillet ?purpose ?", "family": "Workshop & Welding", "subtopic": "", "tid": "CHE-2026-09-3931", "tray": "new", "candidates": [ { "answer_id": "PIPEFAB-012", "score": 0.47317880392074585, "sibling_score": 0.47317880392074585, "answer_score": 0.32897973507642747, "sibling_qid": "CHE-2026-05-0578-Q010", "sibling_text": "purpose of flaring tool", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "What is the purpose of a flaring tool?", "cross_family": false }, { "answer_id": "WELD-B-005", "score": 0.44359496235847473, "sibling_score": 0.44359496235847473, "answer_score": null, "sibling_qid": "KOL-2026-05-4096-Q004", "sibling_text": "welding distortion to reduce", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding distortion — prevention and control", "cross_family": false }, { "answer_id": "FB-COUP-001", "score": 0.40110817551612854, "sibling_score": 0.40110817551612854, "answer_score": 0.2955177679657936, "sibling_qid": "MUM-2022-04-2130-Q006", "sibling_text": "purpose of fitted bolts", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What fitted bolts are, what they do, and where they sit onboard", "cross_family": true } ] }, { "qid": "CHE-2026-09-3931-Q007", "text": "MPI test ?", "family": "Ship Construction & Stability", "subtopic": "Inclining Experiment", "tid": "CHE-2026-09-3931", "tray": "new", "candidates": [ { "answer_id": "NDT-METH-P02-001", "score": 0.4970879554748535, "sibling_score": 0.4970879554748535, "answer_score": null, "sibling_qid": "KOL-2022-09-3569-Q002", "sibling_text": "mpt testing in detail", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "1. Magnetic Particle Inspection (MPI / MPT)", "cross_family": true }, { "answer_id": "PI-211-002", "score": 0.4589385390281677, "sibling_score": 0.4589385390281677, "answer_score": null, "sibling_qid": "KOL-2025-09-2857-Q008", "sibling_text": "pi test", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "How the PI test is carried out — equipment, procedure, leakage-current behaviour", "cross_family": true }, { "answer_id": "PI-211-004", "score": 0.4421829283237457, "sibling_score": 0.4421829283237457, "answer_score": null, "sibling_qid": "KOL-2024-03-2702-Q005", "sibling_text": "pi test and dar test", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "PI and DAR — how they relate, their purpose, and acceptable values", "cross_family": true } ] }, { "qid": "CHE-2026-09-3932-Q001", "text": "Detunes maintenance ?", "family": "SOLAS - Fire Safety", "subtopic": "CO2 System", "tid": "CHE-2026-09-3932", "tray": "new", "candidates": [ { "answer_id": "VIB-BAL-B-004", "score": 0.6253283023834229, "sibling_score": 0.6253283023834229, "answer_score": 0.4435249179601669, "sibling_qid": "CHE-2026-05-0615-Q003", "sibling_text": "detuner function", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Detuner / detuning wheel versus damper", "cross_family": true }, { "answer_id": "DCP-PPC-003", "score": 0.5671144127845764, "sibling_score": 0.5671144127845764, "answer_score": null, "sibling_qid": "KOC-2025-01-0511-Q006", "sibling_text": "maintenance on dcp", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "C3 — DCP — General Working, Advantages, Disadvantages & Common Issues", "cross_family": false }, { "answer_id": "DCP-B-001", "score": 0.5370803475379944, "sibling_score": 0.5370803475379944, "answer_score": 0.3558792769908905, "sibling_qid": "CHE-2025-11-0081-Q005", "sibling_text": "maintenance in fixed dcp", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fixed DCP system — maintenance, agitation, sampling and survey preparation", "cross_family": false } ] }, { "qid": "CHE-2026-09-3933-Q005", "text": "Instruct fitter to fabricate a pipe ?Procedure for risk assessment ? type of welding rod used?", "family": "Risk & Safety Management", "subtopic": "Risk Assessment / Management", "tid": "CHE-2026-09-3933", "tray": "new", "candidates": [ { "answer_id": "PIPEFAB-011", "score": 0.5894478559494019, "sibling_score": 0.5894478559494019, "answer_score": 0.47425128519535065, "sibling_qid": "CHE-2026-09-3925-Q007", "sibling_text": "gi pipe which welding carried out", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Explain the repair procedure for a GI or GRP pipe, including welding a GI pipe", "cross_family": true }, { "answer_id": "WBS-C-003", "score": 0.5821250677108765, "sibling_score": 0.5821250677108765, "answer_score": null, "sibling_qid": "MUM-2026-01-2544-Q003", "sibling_text": "welding need to be carried out in workshop what safeties is required to mention to fitter", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Shipboard hot work — the permit, the designated area, and work near fuel tanks", "cross_family": true }, { "answer_id": "PIPEFAB-001", "score": 0.5739156007766724, "sibling_score": 0.5739156007766724, "answer_score": 0.5033768236637115, "sibling_qid": "MUM-2024-08-1089-Q006", "sibling_text": "as a 2e how do you instruct 3e to fabricate a pipe in the absence of fitter detailed procedure to carry out the action", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "A damaged pipe has been removed — fabricate the new one: profiling an uneven/bent section and the instructions you give the 3/E or fitter", "cross_family": true } ] }, { "qid": "CHE-2026-09-3934-Q001", "text": "MEPC ?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "Annex VI Amendments / Latest Requirements", "tid": "CHE-2026-09-3934", "tray": "new", "candidates": [ { "answer_id": "AV6-P01-01", "score": 0.6406872868537903, "sibling_score": 0.6406872868537903, "answer_score": null, "sibling_qid": "KOC-2026-03-2099-Q003", "sibling_text": "mepc 83", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Explain the latest Annex VI amendment or MEPC development, and state its date and status.", "cross_family": false }, { "answer_id": "MEPC-GHG-004", "score": 0.638335645198822, "sibling_score": 0.638335645198822, "answer_score": null, "sibling_qid": "KOC-2023-10-0226-Q001", "sibling_text": "mepc 98", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Explain MEPC 82 and its new regulations.", "cross_family": false }, { "answer_id": "MEPC-GHG-002", "score": 0.6239701509475708, "sibling_score": 0.6239701509475708, "answer_score": null, "sibling_qid": "KOC-2023-03-0162-Q002", "sibling_text": "mepc 78", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Explain MEPC 78 and MEPC 79 — when were they held and what was decided?", "cross_family": false } ] }, { "qid": "CHE-2026-09-3934-Q002", "text": "Latest amendment in bunkering ? What is in use sampling ?", "family": "MARPOL - General & Compliance", "subtopic": "Bunker Sample Storage", "tid": "CHE-2026-09-3934", "tray": "new", "candidates": [ { "answer_id": "BUNK-SAMP-002", "score": 0.611234724521637, "sibling_score": 0.611234724521637, "answer_score": 0.5078283607959747, "sibling_qid": "KOC-2025-07-0625-Q005", "sibling_text": "4 bunker sample in use marpol ship sample difference", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "The three MARPOL fuel-oil samples: delivered, in-use, onboard", "cross_family": false }, { "answer_id": "BUNK-SAMP-005", "score": 0.5479964017868042, "sibling_score": 0.5479964017868042, "answer_score": 0.4204291746020317, "sibling_qid": "KOL-2025-09-1030-Q006", "sibling_text": "bunker sample minimum no plus how many month s to keep onboard lab sample lost in the way what to do ship sample leaked too den what to do", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Number of samples, retention period, storage and lost or leaked samples", "cross_family": false }, { "answer_id": "BUNK-SAMP-001", "score": 0.5455596446990967, "sibling_score": 0.5455596446990967, "answer_score": 0.4701770931482315, "sibling_qid": "KOL-2022-10-0693-Q005", "sibling_text": "bunker sample procedure", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Taking the bunker (MARPOL delivered) sample", "cross_family": false } ] }, { "qid": "CHE-2026-09-3934-Q003", "text": "MLC 2010 & MLC 2006 ?", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "CHE-2026-09-3934", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-007", "score": 0.5113372206687927, "sibling_score": 0.5113372206687927, "answer_score": null, "sibling_qid": "MUM-2026-02-0734-Q007", "sibling_text": "mlc 2006 detainable deficiency", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false }, { "answer_id": "DUS-P1-03", "score": 0.42126917839050293, "sibling_score": 0.42126917839050293, "answer_score": null, "sibling_qid": "KOL-2023-04-0735-Q004", "sibling_text": "docking plan 5 mlc 2006", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Docking plan — content, purpose and how the 2E uses it", "cross_family": true }, { "answer_id": "MLC-WRH-B-002", "score": 0.4204711318016052, "sibling_score": 0.4204711318016052, "answer_score": null, "sibling_qid": "MUM-2022-07-0027-Q005", "sibling_text": "mlc 2006 wages rest hours", "sibling_family": "MLC", "via": "sibling", "answer_title": "Work and rest hours under MLC — the criteria, the weekly limit, the intervals", "cross_family": false } ] }, { "qid": "CHE-2026-09-3934-Q008", "text": "o2 analyser? how frequent test ?", "family": "Ship Construction & Stability", "subtopic": "Inclining Experiment", "tid": "CHE-2026-09-3934", "tray": "new", "candidates": [ { "answer_id": "CO2-SYS-002", "score": 0.5893371105194092, "sibling_score": 0.5893371105194092, "answer_score": null, "sibling_qid": "KOC-2024-05-0343-Q004", "sibling_text": "weekly co2 routine check as 2e", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 maintenance, inspection, testing and survey routines", "cross_family": true }, { "answer_id": "COT-P02-08", "score": 0.5473173260688782, "sibling_score": 0.5473173260688782, "answer_score": 0.44033871293067933, "sibling_qid": "MUM-2026-01-2907-Q007", "sibling_text": "o2 calibration testing procedure", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Explain the working principle, sampling arrangement, calibration and failure response of the inert-gas oxygen analyser.", "cross_family": true }, { "answer_id": "FSH-DET-005", "score": 0.5334197282791138, "sibling_score": 0.5334197282791138, "answer_score": null, "sibling_qid": "KOL-2017-08-0107-Q002", "sibling_text": "2 tests for each type weekly alarm test yearly function test 5 year recaliberation by manufacturer", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Testing, planned maintenance, fault identification, isolation and circuit protection", "cross_family": true } ] }, { "qid": "CHE-2026-09-3934-Q009", "text": "Static electricity, bonding, when it formed during loading or discharging ?", "family": "Cargo Ops - Tankers", "subtopic": "Tanker Safety / Deck", "tid": "CHE-2026-09-3934", "tray": "new", "candidates": [ { "answer_id": "CPS-316-002", "score": 0.6497702598571777, "sibling_score": 0.6497702598571777, "answer_score": null, "sibling_qid": "MUM-2025-08-0386-Q014", "sibling_text": "loading and discharging preparation as 2e", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "2/E checks and preparation before cargo discharge / cargo operations", "cross_family": false }, { "answer_id": "STAT-BOND-BF045-001", "score": 0.6473772525787354, "sibling_score": 0.6473772525787354, "answer_score": null, "sibling_qid": "MUM-2026-07-3809-Q005", "sibling_text": "what is static charge", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What is static electricity, and how is static charge generated on a tanker?", "cross_family": false }, { "answer_id": "STAT-562-001", "score": 0.6190189123153687, "sibling_score": 0.6190189123153687, "answer_score": null, "sibling_qid": "KOL-2021-07-2451-Q001", "sibling_text": "static electricity", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Static electricity generation in tanker pipelines & cargo-tank safety", "cross_family": false } ] }, { "qid": "CHE-2026-09-3935-Q002", "text": "Life bot crane check under which code ,name of bearing how to check ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Bearing Clearance", "tid": "CHE-2026-09-3935", "tray": "review", "candidates": [ { "answer_id": "MAIN-BRG-D-004", "score": 0.6767712235450745, "sibling_score": 0.6767712235450745, "answer_score": null, "sibling_qid": "KOC-2025-05-2063-Q011", "sibling_text": "checks on main bearing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main bearing overhaul — jack-up, clearance check and tightening", "cross_family": false }, { "answer_id": "XHD-BRG-C-001", "score": 0.6720028519630432, "sibling_score": 0.6720028519630432, "answer_score": null, "sibling_qid": "MUM-2026-07-3803-Q003", "sibling_text": "crosshead bearing inspection", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "A. Present the crosshead bottom shell for survey, piston in place", "cross_family": false }, { "answer_id": "CXH-BRG-FINAL-1-001", "score": 0.6713749766349792, "sibling_score": 0.6713749766349792, "answer_score": null, "sibling_qid": "KOL-2018-05-3150-Q004", "sibling_text": "crosshead bearing inspection", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead bearing survey: open-up, removal & inspection", "cross_family": false } ] }, { "qid": "CHE-2026-09-3935-Q003", "text": "OPTM means ?", "family": "Workshop & Welding", "subtopic": "Pipe Pressure Test", "tid": "CHE-2026-09-3935", "tray": "new", "candidates": [ { "answer_id": "ODC-013", "score": 0.4333919286727905, "sibling_score": 0.4333919286727905, "answer_score": 0.23957775235176085, "sibling_qid": "KOL-2023-07-0757-Q005", "sibling_text": "odm working", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "ODMCS / ODME — purpose, components and working principle", "cross_family": true }, { "answer_id": "PMS-392-005", "score": 0.4035584032535553, "sibling_score": 0.4035584032535553, "answer_score": null, "sibling_qid": "MUM-2026-01-2905-Q004", "sibling_text": "omm contents", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Contents of an Operation and Maintenance Manual (OMM) for maintenance planning", "cross_family": true }, { "answer_id": "OMD-004", "score": 0.4021792709827423, "sibling_score": 0.4021792709827423, "answer_score": null, "sibling_qid": "KOC-2025-01-0524-Q006", "sibling_text": "omd requirements", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What are the OMD requirements? Why is an OMD fitted on the main engine and not the auxiliary, and can the two be interchanged?", "cross_family": true } ] }, { "qid": "CHE-2026-09-3935-Q006", "text": "Vanishing stability ?", "family": "SOLAS", "subtopic": "Stability Curves (GZ / KN)", "tid": "CHE-2026-09-3935", "tray": "new", "candidates": [ { "answer_id": "STAB-GZ-P03-003", "score": 0.642949104309082, "sibling_score": 0.642949104309082, "answer_score": 0.38274487406015395, "sibling_qid": "KOC-2025-01-0499-Q002", "sibling_text": "agle of vanishing stability", "sibling_family": "", "via": "sibling", "answer_title": "Key points on the GZ curve — max GZ, vanishing stability, downflooding, inflection, instability", "cross_family": false }, { "answer_id": "DAM-STAB-P03-001", "score": 0.5734081864356995, "sibling_score": 0.5734081864356995, "answer_score": null, "sibling_qid": "KOL-2019-12-0370-Q002", "sibling_text": "dynamic stability damage stability", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Intact, static, dynamic and damage stability: difference and criteria", "cross_family": false }, { "answer_id": "STAB-GZ-P01-001", "score": 0.5712341666221619, "sibling_score": 0.5712341666221619, "answer_score": null, "sibling_qid": "MUM-2026-06-3478-Q004", "sibling_text": "stability curve", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Draw and explain the statical stability (GZ) curve", "cross_family": false } ] }, { "qid": "CHE-2026-09-3935-Q007", "text": "What is NOx and full explanation ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Inverter / VFD", "tid": "CHE-2026-09-3935", "tray": "new", "candidates": [ { "answer_id": "EECS-016", "score": 0.5063366293907166, "sibling_score": 0.5063366293907166, "answer_score": null, "sibling_qid": "CHE-2026-09-3907-Q003", "sibling_text": "nox technical code explain", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "16. Explain the NOx Technical File, EEDI and SEEMP", "cross_family": true }, { "answer_id": "A6-NSEC-002", "score": 0.488689124584198, "sibling_score": 0.488689124584198, "answer_score": 0.2487729549407959, "sibling_qid": "CHE-2026-05-0618-Q004", "sibling_text": "nox technical file explain", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "NOx Technical Code vs NOx Technical File", "cross_family": true }, { "answer_id": "AV6-P02-01", "score": 0.34500324726104736, "sibling_score": null, "answer_score": 0.34500324726104736, "sibling_qid": "", "sibling_text": "nox environmental and health effects and why marpol regulates it nox family of nitrogen oxides mainly no and no2 formed as thermal nox zeldovich mechanism significant above roughly 1600 c and dominant well above 1800 c atmospheric harm photochemical smog and ground level ozone nox vocs sunlight", "sibling_family": "", "via": "answer_title", "answer_title": "NOx — environmental and health effects, and why MARPOL regulates it", "cross_family": false } ] }, { "qid": "CHE-2026-09-3935-Q008", "text": "GFI and full explanation ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Inverter / VFD", "tid": "CHE-2026-09-3935", "tray": "new", "candidates": [ { "answer_id": "GFI-572-001", "score": 0.577155351638794, "sibling_score": 0.577155351638794, "answer_score": 0.33780770003795624, "sibling_qid": "MUM-2025-06-0328-Q001", "sibling_text": "heard about term gfi where is it and full complete details", "sibling_family": "", "via": "sibling", "answer_title": "What is GFI (Greenhouse Gas Fuel Intensity) under MARPOL Annex VI?", "cross_family": false }, { "answer_id": "FIVA-220-001", "score": 0.4640734791755676, "sibling_score": 0.4640734791755676, "answer_score": null, "sibling_qid": "KOC-2023-10-0984-Q001", "sibling_text": "fiva full explanation", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "FIVA valve — construction, function and basic operation", "cross_family": true }, { "answer_id": "GFI-572-002", "score": 0.4504235088825226, "sibling_score": 0.4504235088825226, "answer_score": null, "sibling_qid": "MUM-2026-02-0761-Q003", "sibling_text": "gfi significance year", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Significance of GFI and its implementation / entry-into-force year", "cross_family": true } ] }, { "qid": "CHE-2026-09-3935-Q009", "text": "Full cycle of fuel carbon emissions ? (well to wake he asking) and MPEC code this ?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "GHG / Greenhouse", "tid": "CHE-2026-09-3935", "tray": "new", "candidates": [ { "answer_id": "CII-CALC-P03-001", "score": 0.5862563252449036, "sibling_score": 0.5862563252449036, "answer_score": 0.4886989712715149, "sibling_qid": "KOL-2026-07-4282-Q001", "sibling_text": "what is cii formula but he wants to know how u can 2 calculate amount of co2 emissions", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Calculating attained & required CII — formula, unit, reduction factor, measurements", "cross_family": false }, { "answer_id": "EEDI-B-001", "score": 0.5575510859489441, "sibling_score": 0.5575510859489441, "answer_score": null, "sibling_qid": "MUM-2023-12-0153-Q010", "sibling_text": "explain what is transport work and carbon conversion factor", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "EEDI — formula, unit and the calculation terms", "cross_family": false }, { "answer_id": "BIO-FUEL-001", "score": 0.5568550825119019, "sibling_score": 0.5568550825119019, "answer_score": null, "sibling_qid": "MUM-2026-09-3975-Q011", "sibling_text": "what are non carbon fuels", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Alternative and non-carbon marine fuels — and the latest developments", "cross_family": false } ] }, { "qid": "CHE-2026-09-3935-Q010", "text": "GWP gas and explanation ?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "GHG / Greenhouse", "tid": "CHE-2026-09-3935", "tray": "new", "candidates": [ { "answer_id": "AV6-P04-01", "score": 0.5715569853782654, "sibling_score": 0.5715569853782654, "answer_score": 0.39901319444179534, "sibling_qid": "MUM-2026-06-3582-Q009", "sibling_text": "gwp global warming potential", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Define Global Warming Potential and Ozone Depletion Potential; give the reference bases, meaning of a stated value, and the time-horizon and equal-mass points examiners drill.", "cross_family": false }, { "answer_id": "CII-RATE-P02-001", "score": 0.49287188053131104, "sibling_score": 0.49287188053131104, "answer_score": null, "sibling_qid": "KOC-2025-05-0590-Q003", "sibling_text": "ghg rating explain", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "1. The CII rating scale A to E — what each rating means", "cross_family": false }, { "answer_id": "AIRP-188-001", "score": 0.48500481247901917, "sibling_score": 0.48500481247901917, "answer_score": null, "sibling_qid": "CHE-2025-10-0064-Q003", "sibling_text": "gwp odp", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is an ozone-depleting substance, and what is ODP?", "cross_family": false } ] }, { "qid": "CHE-2026-09-3935-Q011", "text": "Hull certificate ?", "family": "Auxiliary Equipment", "subtopic": "Crane (ER / Provision)", "tid": "CHE-2026-09-3935", "tray": "new", "candidates": [ { "answer_id": "CRANE-ER-001", "score": 0.6214372515678406, "sibling_score": 0.6214372515678406, "answer_score": null, "sibling_qid": "KOC-2025-05-1914-Q007", "sibling_text": "certificate", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Pre-use safety, maintenance & certification checks on the ER crane", "cross_family": false }, { "answer_id": "AVICERT-001", "score": 0.5766587853431702, "sibling_score": 0.5766587853431702, "answer_score": null, "sibling_qid": "NOI-2026-09-0010-Q008", "sibling_text": "all certificate in annex6", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "What certificates and documents are required to be carried on board under MARPOL Annex VI?", "cross_family": false }, { "answer_id": "HKC-IHM-B-002", "score": 0.569831132888794, "sibling_score": 0.569831132888794, "answer_score": null, "sibling_qid": "KOL-2025-08-1013-Q007", "sibling_text": "ihm certificate details", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What surveys, certificates and documents go with the IHM and the Hong Kong Convention?", "cross_family": true } ] }, { "qid": "CHE-2026-09-3935-Q012", "text": "Factor of subdivision and where it's fixed and regulations ?", "family": "Ship Construction & Stability", "subtopic": "DEFINITION", "tid": "CHE-2026-09-3935", "tray": "new", "candidates": [ { "answer_id": "FLP-142-P02-005", "score": 0.6326829195022583, "sibling_score": 0.6326829195022583, "answer_score": 0.421394145488739, "sibling_qid": "MUM-2026-09-3878-Q003", "sibling_text": "factor of subdivision", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Factor of subdivision — how it is fixed (length and criterion numeral)", "cross_family": false }, { "answer_id": "FLP-142-P02-004", "score": 0.6112961769104004, "sibling_score": 0.6112961769104004, "answer_score": 0.4736315131187439, "sibling_qid": "KOL-2024-12-0896-Q001", "sibling_text": "factor of subdivision xx", "sibling_family": "", "via": "sibling", "answer_title": "Factor of subdivision — what it is", "cross_family": false }, { "answer_id": "FL-PERM-P01-001", "score": 0.34237837344408034, "sibling_score": null, "answer_score": 0.34237837344408034, "sibling_qid": "", "sibling_text": "floodable length permissible length margin line and factor of subdivision how they relate status these are legacy deterministic method terms current solas ii 1 subdivision and damage stability harmonized in force 2009 use the probabilistic method attained index a required index r do not present the floodable length chain as the current compliance method margin line legacy datum at least 76 mm belo", "sibling_family": "", "via": "answer_title", "answer_title": "Floodable length, permissible length, margin line and factor of subdivision — how they relate", "cross_family": false } ] }, { "qid": "CHE-2026-09-3935-Q014", "text": "what do check FQS ?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankcase Relief Door", "tid": "CHE-2026-09-3935", "tray": "new", "candidates": [ { "answer_id": "VIT-MECH-B-002", "score": 0.48486024141311646, "sibling_score": 0.48486024141311646, "answer_score": null, "sibling_qid": "CHE-2026-03-0254-Q002", "sibling_text": "vit explain fqs settings", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How VIT is adjusted and set — timing and fuel-quality (FQS) interactions", "cross_family": true }, { "answer_id": "FQCC-583-A-005", "score": 0.4680847227573395, "sibling_score": 0.4680847227573395, "answer_score": null, "sibling_qid": "MUM-2025-09-2411-Q005", "sibling_text": "fo analysis report all checks", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "The bunker / fuel oil analysis report — what is checked and who says so", "cross_family": true }, { "answer_id": "SEQ-330-001", "score": 0.465226948261261, "sibling_score": 0.465226948261261, "answer_score": null, "sibling_qid": "MUM-2026-06-3625-Q004", "sibling_text": "seq survey what all checks to be done", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Safety Equipment survey — what it is, its scope, and what is checked", "cross_family": true } ] }, { "qid": "CHE-2026-09-3935-Q017", "text": "Synchronised motor and cross ?", "family": "Electrical - Motors & Starters", "subtopic": "Induction Motor (General / Working)", "tid": "CHE-2026-09-3935", "tray": "new", "candidates": [ { "answer_id": "SYNC-ASY-C-003", "score": 0.6185733079910278, "sibling_score": 0.6185733079910278, "answer_score": null, "sibling_qid": "KOC-2025-01-1463-Q011", "sibling_text": "sync motor onboard", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Onboard uses of synchronous motors", "cross_family": true }, { "answer_id": "SYNC-ASY-C-001", "score": 0.5817059278488159, "sibling_score": 0.5817059278488159, "answer_score": null, "sibling_qid": "KOL-2020-07-2385-Q004", "sibling_text": "synchronous motor working nd cross question", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Working principle of a synchronous motor", "cross_family": true }, { "answer_id": "IND-MOT-A-001", "score": 0.5704600214958191, "sibling_score": 0.5704600214958191, "answer_score": null, "sibling_qid": "KOC-2022-11-1210-Q008", "sibling_text": "induction motor working and cross", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "1. Working principle of a three-phase induction motor", "cross_family": false } ] }, { "qid": "CHE-2026-09-3935-Q019", "text": "Preferential trip cross ?", "family": "Electrical - Protection & Relays", "subtopic": "Preferential Trip", "tid": "CHE-2026-09-3935", "tray": "new", "candidates": [ { "answer_id": "PTRIP-222-001", "score": 0.6391550898551941, "sibling_score": 0.6391550898551941, "answer_score": 0.28063145875930784, "sibling_qid": "KOC-2026-08-2108-Q006", "sibling_text": "preferential trip", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Preferential trip — purpose, working principle and activation", "cross_family": false }, { "answer_id": "PTRIP-222-003", "score": 0.6068981289863586, "sibling_score": 0.6068981289863586, "answer_score": null, "sibling_qid": "KOC-2025-11-1629-Q007", "sibling_text": "prefferemtial trip how to test", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Testing and survey demonstration, MSB setting checks, parallel alternators", "cross_family": false }, { "answer_id": "MSB-ESB-B-003", "score": 0.26600158512592315, "sibling_score": null, "answer_score": 0.26600158512592315, "sibling_qid": "", "sibling_text": "msb esb work in drydock the trips you test", "sibling_family": "", "via": "answer_title", "answer_title": "MSB/ESB work in drydock & the trips you test", "cross_family": false } ] }, { "qid": "CHE-2026-09-3935-Q023", "text": "Banned paint on ship with regulations and date of banning? Internal ques", "family": "Workshop & Welding", "subtopic": "Welding / Brazing / Soldering", "tid": "CHE-2026-09-3935", "tray": "new", "candidates": [ { "answer_id": "HULL-PAINT-001", "score": 0.5992898941040039, "sibling_score": 0.5992898941040039, "answer_score": null, "sibling_qid": "KOL-2021-08-3452-Q002", "sibling_text": "hull preparation painting type of paint note don t say cleaning by abrasive blasting he said now a days it banned port authority will catch you", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Preparing the hull surface before painting in dry dock — cleanliness standard and methods", "cross_family": true }, { "answer_id": "HULL-PAINT-002", "score": 0.5942537784576416, "sibling_score": 0.5942537784576416, "answer_score": null, "sibling_qid": "KOC-2021-06-0004-Q004", "sibling_text": "hull coating and explain different type of hull paints latest regulation regarding hull painting cybutyne catogery paint will be banned also he asked polymer type paints i dint gt correctly what he want", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Types of hull coating, the paint scheme by section, and why each is used", "cross_family": true }, { "answer_id": "AFS-309-003", "score": 0.5839583873748779, "sibling_score": 0.5839583873748779, "answer_score": null, "sibling_qid": "KOC-2023-09-0217-Q003", "sibling_text": "afs convention hull coating types why tbt banned biocide free paint base content in biocide free paint does biocide free release its contents", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "IAFS Certificate, survey, validity and drydock compliance", "cross_family": true } ] }, { "qid": "CHE-2026-09-3936-Q003", "text": "How SCR firing angle is regulating the output voltage ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Thyristor / SCR", "tid": "CHE-2026-09-3936", "tray": "review", "candidates": [ { "answer_id": "SCR-306-A-003", "score": 0.6732181906700134, "sibling_score": 0.6732181906700134, "answer_score": 0.5585178434848785, "sibling_qid": "MUM-2026-02-1923-Q010", "sibling_text": "thyrister gate signal firing angle", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Gate signal, triggering and firing-angle control", "cross_family": false }, { "answer_id": "SCR-306-B-005", "score": 0.657896101474762, "sibling_score": 0.657896101474762, "answer_score": 0.5501284003257751, "sibling_qid": "CHE-2025-08-0280-Q016", "sibling_text": "how is thyristor used in avr ans trigger voltage and firing angle internal deciding", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Thyristor / SCR in an AVR excitation circuit", "cross_family": false }, { "answer_id": "SCR-306-A-001", "score": 0.6031903028488159, "sibling_score": 0.6031903028488159, "answer_score": null, "sibling_qid": "KOC-2025-01-1468-Q006", "sibling_text": "silicon controlled rectifier explain", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What an SCR is and how it works", "cross_family": false } ] }, { "qid": "CHE-2026-09-3936-Q005", "text": "Explain about air gap why plastic feeler gauge? Air gap increase decrease what will be result?", "family": "Electrical - Motors & Starters", "subtopic": "Air Gap", "tid": "CHE-2026-09-3936", "tray": "review", "candidates": [ { "answer_id": "AIR-GAP-003", "score": 0.6774523854255676, "sibling_score": 0.6774523854255676, "answer_score": null, "sibling_qid": "MUM-2026-04-2117-Q006", "sibling_text": "what happens if air gap increases and decreases", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "AG-3 — Effects, causes, indications and correction: high, low, uneven, contaminated gap", "cross_family": false }, { "answer_id": "AIR-GAP-001", "score": 0.6290795803070068, "sibling_score": 0.6290795803070068, "answer_score": 0.4311816096305847, "sibling_qid": "KOL-2016-10-2073-Q003", "sibling_text": "air gap wht if air gap decreses", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "AG-1 — The air gap: what it is and why it matters", "cross_family": false }, { "answer_id": "AIR-GAP-002", "score": 0.5614281296730042, "sibling_score": 0.5614281296730042, "answer_score": 0.4205459803342819, "sibling_qid": "KOC-2026-01-1685-Q012", "sibling_text": "how to measure air gap", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "AG-2 — Checking and measuring the air gap", "cross_family": false } ] }, { "qid": "CHE-2026-09-3936-Q007", "text": "Asynchronous motor working principle Why synchronous rotor has no magnetic field ?", "family": "Electrical - Motors & Starters", "subtopic": "Induction Motor (General / Working)", "tid": "CHE-2026-09-3936", "tray": "review", "candidates": [ { "answer_id": "SYNC-ASY-C-001", "score": 0.721438467502594, "sibling_score": 0.721438467502594, "answer_score": 0.5626950860023499, "sibling_qid": "KOL-2017-07-3961-Q002", "sibling_text": "synchronous motor working principle", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Working principle of a synchronous motor", "cross_family": false }, { "answer_id": "SYNC-ASYNC-A-002", "score": 0.7043834328651428, "sibling_score": 0.7043834328651428, "answer_score": 0.554601165652275, "sibling_qid": "KOL-2024-02-0809-Q007", "sibling_text": "silent pole of synchronous motor and function", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Construction and main parts of a synchronous motor", "cross_family": false }, { "answer_id": "SYNC-ASY-C-002", "score": 0.68890780210495, "sibling_score": 0.68890780210495, "answer_score": null, "sibling_qid": "KOL-2024-08-0857-Q008", "sibling_text": "changes when the current is changed in synchronous motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Synchronous condenser and over-excitation", "cross_family": false } ] }, { "qid": "CHE-2026-09-3936-Q011", "text": "undervoltage Explanation how its working ?", "family": "SOLAS - Fire Safety", "subtopic": "Cargo Hold Fire", "tid": "CHE-2026-09-3936", "tray": "new", "candidates": [ { "answer_id": "OC-UV-TRIP-001", "score": 0.6133027672767639, "sibling_score": 0.6133027672767639, "answer_score": 0.46185021996498105, "sibling_qid": "MUM-2026-04-2108-Q002", "sibling_text": "what is the use of undervoltage", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Under-voltage trip / no-volt coil — purpose, working, onboard test and calibration", "cross_family": true }, { "answer_id": "VOLT-SYS-006", "score": 0.5925779938697815, "sibling_score": 0.5925779938697815, "answer_score": 0.44613892436027525, "sibling_qid": "CHE-2026-05-0530-Q001", "sibling_text": "what is undervoltage", "sibling_family": "Electrical - Distribution & MSB", "via": "sibling", "answer_title": "Undervoltage and the undervoltage trip", "cross_family": true }, { "answer_id": "VDIP-589-001", "score": 0.5446839332580566, "sibling_score": 0.5446839332580566, "answer_score": null, "sibling_qid": "MUM-2026-03-2070-Q001", "sibling_text": "avr details y the voltage dip is there and how it responds", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "What is voltage dip, what dip is allowed and for how long, and how is it controlled?", "cross_family": true } ] }, { "qid": "CHE-2026-09-3937-Q001", "text": "Which company ? Type of ships and engine sailed ?", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "CHE-2026-09-3937", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.7266282439231873, "sibling_score": 0.7266282439231873, "answer_score": null, "sibling_qid": "MUM-2026-06-3490-Q006", "sibling_text": "engine sailed type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.6836485266685486, "sibling_score": 0.6836485266685486, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q001", "sibling_text": "type of ship sailed and engines details", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.6410914659500122, "sibling_score": 0.6410914659500122, "answer_score": null, "sibling_qid": "KOL-2025-12-2031-Q002", "sibling_text": "type of ship and engine sailed engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "CHE-2026-09-3937-Q003", "text": "TEU of your ship ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "CHE-2026-09-3937", "tray": "new", "candidates": [ { "answer_id": "TONN-007", "score": 0.5850383639335632, "sibling_score": 0.5850383639335632, "answer_score": null, "sibling_qid": "MUM-2026-03-0839-Q001", "sibling_text": "type of ship and what is gt nt and displacement", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Differentiate GT, NT, GRT/NRT, DWT, Lightweight and Displacement", "cross_family": false }, { "answer_id": "SOLAS12-BC-A-001", "score": 0.5620324015617371, "sibling_score": 0.5620324015617371, "answer_score": null, "sibling_qid": "MUM-2026-06-3412-Q001", "sibling_text": "type of ship bulk carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "SOLAS definition and scope of a bulk carrier", "cross_family": false }, { "answer_id": "DB-TORBOX-B-003", "score": 0.5501245856285095, "sibling_score": 0.5501245856285095, "answer_score": null, "sibling_qid": "CHE-2026-04-0150-Q001", "sibling_text": "type of ship sailed container", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "What is a torsion box — definition and construction", "cross_family": false } ] }, { "qid": "CHE-2026-09-3937-Q008", "text": "What is eco speed ? who gives it?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Engine Theory / Performance", "tid": "CHE-2026-09-3937", "tray": "new", "candidates": [ { "answer_id": "EGTP-P02-008", "score": 0.4062984585762024, "sibling_score": 0.4062984585762024, "answer_score": null, "sibling_qid": "MUM-2025-10-2461-Q008", "sibling_text": "me speed reducing reasons", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "General Engine Theory — Operating Envelope", "cross_family": false }, { "answer_id": "CSBR-001", "score": 0.4058149755001068, "sibling_score": 0.4058149755001068, "answer_score": null, "sibling_qid": "MUM-2026-01-1241-Q003", "sibling_text": "critical speed define", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "CSBR-001 — Define critical speed / critical RPM", "cross_family": false }, { "answer_id": "BCME-003", "score": 0.4050549566745758, "sibling_score": 0.4050549566745758, "answer_score": null, "sibling_qid": "MUM-2025-05-0273-Q012", "sibling_text": "how is the ecs sensing load and speed", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Bridge-control safeties, limiters, ECS load/speed sensing and control-panel checks", "cross_family": true } ] }, { "qid": "CHE-2026-09-3937-Q009", "text": "Cabin temperature high reasons?", "family": "Refrigeration & AC", "subtopic": "HP / LP Trip", "tid": "CHE-2026-09-3937", "tray": "review", "candidates": [ { "answer_id": "RAC-HPLP-389-001", "score": 0.6748681664466858, "sibling_score": 0.6748681664466858, "answer_score": null, "sibling_qid": "MUM-2026-03-2648-Q001", "sibling_text": "condenser temperature high", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Refrigeration / AC compressor trips on high pressure — causes and checks", "cross_family": false }, { "answer_id": "ICAC-299-011", "score": 0.6691473126411438, "sibling_score": 0.6691473126411438, "answer_score": null, "sibling_qid": "CHE-2026-03-0359-Q002", "sibling_text": "high temp in ac compressor", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Discharge temperature rising with cooling-water flow normal", "cross_family": false }, { "answer_id": "RAC-HPLP-389-003", "score": 0.6636685729026794, "sibling_score": 0.6636685729026794, "answer_score": null, "sibling_qid": "CHE-2026-02-0483-Q005", "sibling_text": "ac high temperature", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Trips and cutouts on a refrigeration compressor (HP, LP, LO)", "cross_family": false } ] }, { "qid": "CHE-2026-09-3937-Q013", "text": "Hot work in cracked frame of oil heater, procedure, which electrode? Who gives permit? Who approves from office?", "family": "Workshop & Welding", "subtopic": "Hot Work", "tid": "CHE-2026-09-3937", "tray": "new", "candidates": [ { "answer_id": "WBS-C-003", "score": 0.6190130114555359, "sibling_score": 0.6190130114555359, "answer_score": 0.5278082966804504, "sibling_qid": "KOC-2025-01-1476-Q002", "sibling_text": "how to carry out hot work near f o tank not accepting anything", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Shipboard hot work — the permit, the designated area, and work near fuel tanks", "cross_family": false }, { "answer_id": "WELD-PATM-010", "score": 0.6019038558006287, "sibling_score": 0.6019038558006287, "answer_score": null, "sibling_qid": "KOL-2019-07-3260-Q002", "sibling_text": "overhead welding precaution", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Vertical and overhead arc welding – technique and precautions", "cross_family": false }, { "answer_id": "WBS-C-005", "score": 0.5905351042747498, "sibling_score": 0.5905351042747498, "answer_score": null, "sibling_qid": "MUM-2026-01-1238-Q007", "sibling_text": "if crack on deck and need to do welding which welding to do process what are the checks to do welding how to ensure welding is satisfactory", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Crack and leak repair — deck plate, steam line, air receiver and other shipboard cracks", "cross_family": false } ] }, { "qid": "CHE-2026-09-3938-Q002", "text": "In generator decarb after remove piston what visual inspection to be do and followed by clearance and measurements and when to be decide to discarded? ", "family": "Cargo Ops - Tankers", "subtopic": "IG System", "tid": "CHE-2026-09-3938", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-003", "score": 0.6673235893249512, "sibling_score": 0.6673235893249512, "answer_score": null, "sibling_qid": "KOL-2025-06-3785-Q006", "sibling_text": "checks on ae piston and clearances to be taken with clearance values i just answered clearance will be mentioned on the manual", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE piston, ring and groove checks; piston material", "cross_family": true }, { "answer_id": "SCAV-323-P02-005", "score": 0.664833664894104, "sibling_score": 0.664833664894104, "answer_score": null, "sibling_qid": "KOC-2021-05-1760-Q005", "sibling_text": "how you analyse a unit from the scavenge space ans take photo of exhaust valve from scavenge port check whether it is open or not take photos of 4 sides of liner and analyse for microseizure laquering clover leafing cold corrosion and blow by marks check top of piston for fw lo leakages carbon deposits check piston rings by pressing with wooden piece take impression of butt clearance is available from scavenge space turn piston ahead and astern and check the movement of piston rings appearance of piston rings any marks of microseiezure", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Scavenge-space inspection: preparation, checks and findings", "cross_family": true }, { "answer_id": "PIST-CSI-B-003", "score": 0.6624399423599243, "sibling_score": 0.6624399423599243, "answer_score": 0.6102845430374145, "sibling_qid": "KOL-2018-05-1373-Q009", "sibling_text": "piston taken out of cylinder what all clearance u will measure", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Inspecting, calibrating and gauging a removed piston", "cross_family": true } ] }, { "qid": "CHE-2026-09-3938-Q006", "text": "In purifier room heater support saddle crack how to weld and procedure ?", "family": "Purifier & Centrifuges", "subtopic": "Purifier Operation / Bowl", "tid": "CHE-2026-09-3938", "tray": "new", "candidates": [ { "answer_id": "BLR-SURV-P01-001", "score": 0.6239535808563232, "sibling_score": 0.6239535808563232, "answer_score": null, "sibling_qid": "MUM-2026-06-3514-Q007", "sibling_text": "welding in boiler steam drum how to proceed if crack is present", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": true }, { "answer_id": "WBS-C-005", "score": 0.6154568195343018, "sibling_score": 0.6154568195343018, "answer_score": null, "sibling_qid": "MUM-2026-01-1238-Q007", "sibling_text": "if crack on deck and need to do welding which welding to do process what are the checks to do welding how to ensure welding is satisfactory", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Crack and leak repair — deck plate, steam line, air receiver and other shipboard cracks", "cross_family": true }, { "answer_id": "DUS-P4-04", "score": 0.6128631830215454, "sibling_score": 0.6128631830215454, "answer_score": null, "sibling_qid": "MUM-2025-08-2826-Q014", "sibling_text": "insert welding procedure", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Card 4 — Crack on a bulkhead: insert welding repair and location reporting", "cross_family": true } ] }, { "qid": "CHE-2026-09-3938-Q007", "text": "Why stop drill hole to be made and where and how it stop crack growth and what engineering behind this ?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Fitted Bolts", "tid": "CHE-2026-09-3938", "tray": "new", "candidates": [ { "answer_id": "DUS-P4-04", "score": 0.4736919403076172, "sibling_score": 0.4736919403076172, "answer_score": null, "sibling_qid": "MUM-2022-07-2131-Q007", "sibling_text": "crack on bulkhead explain insert method", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Card 4 — Crack on a bulkhead: insert welding repair and location reporting", "cross_family": true }, { "answer_id": "WBS-C-004", "score": 0.4734719216823578, "sibling_score": null, "answer_score": 0.4734719216823578, "sibling_qid": "", "sibling_text": "arresting a crack before a welding repair crack arrest before repair drill a stop hole relief hole just beyond each true crack tip replacing the stress concentrating sharp notch with a large radius find the real ends first a crack extends beyond the visible by dye penetrant dpt or magnetic particle mpi and mark them", "sibling_family": "", "via": "answer_title", "answer_title": "Arresting a crack before a welding repair", "cross_family": false }, { "answer_id": "ISM-AUD-P02-004", "score": 0.4668952524662018, "sibling_score": 0.4668952524662018, "answer_score": null, "sibling_qid": "KOC-2024-07-0358-Q005", "sibling_text": "drill regulation", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "SMS contents, manuals, documents and drill records onboard", "cross_family": true } ] }, { "qid": "CHE-2026-09-3938-Q008", "text": "In AC system room temperature not maintain correct temperature about 29 instead of 22 degree Celsius ?", "family": "Refrigeration & AC", "subtopic": "Refrigeration Faults / Checks", "tid": "CHE-2026-09-3938", "tray": "review", "candidates": [ { "answer_id": "REFR-FLT-001", "score": 0.7218246459960938, "sibling_score": 0.7218246459960938, "answer_score": 0.5365952491760254, "sibling_qid": "CHE-2026-03-0497-Q001", "sibling_text": "in refer system one room temperature is not maintaining what you will check", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Provision/cold room temperature: will not pull down, runs too low, or will not hold", "cross_family": false }, { "answer_id": "RAC-MAT-320-002", "score": 0.6754063963890076, "sibling_score": 0.6754063963890076, "answer_score": 0.47681847810745237, "sibling_qid": "MUM-2026-02-2581-Q005", "sibling_text": "accomodation ac temp not developing", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "2. Accommodation / passenger AC — holding temperature and \"cooling not developing\"", "cross_family": false }, { "answer_id": "CAP-CTRL-005", "score": 0.6749646663665771, "sibling_score": 0.6749646663665771, "answer_score": null, "sibling_qid": "MUM-2024-07-2767-Q019", "sibling_text": "air conditioner ac has reached ambient temperature of the room what will happen now with the compressor", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "CG-005 · What happens as load drops or the room reaches set temperature", "cross_family": false } ] }, { "qid": "KOC-2021-05-0936-Q004", "text": "Liner wears and max wear limit percentage", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "KOC-2021-05-0936", "tray": "review", "candidates": [ { "answer_id": "CYL-LINER-P01-003", "score": 0.6634289622306824, "sibling_score": 0.6634289622306824, "answer_score": 0.42145590484142303, "sibling_qid": "KOC-2026-08-2146-Q014", "sibling_text": "maximum wear down of liner", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "From the readings: wear, wear rate, units and renewal limits", "cross_family": false }, { "answer_id": "CYL-LINER-P01-001", "score": 0.6427386999130249, "sibling_score": 0.6427386999130249, "answer_score": 0.375611212849617, "sibling_qid": "MUM-2023-08-2184-Q001", "sibling_text": "liner calibration 0vality rate of wear", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Carrying out main-engine liner calibration (gauging)", "cross_family": false }, { "answer_id": "CYL-LINER-P02-003", "score": 0.637718141078949, "sibling_score": 0.637718141078949, "answer_score": null, "sibling_qid": "KOL-2024-12-3728-Q005", "sibling_text": "if you use worn down liner more than 0 8 what will happen", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L3 · T044-PART_02-G003High", "cross_family": false } ] }, { "qid": "KOC-2021-05-0937-Q004", "text": "Liner wear. Explain corrosive wear", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "KOC-2021-05-0937", "tray": "new", "candidates": [ { "answer_id": "CYL-LINER-P02-003", "score": 0.6069837212562561, "sibling_score": 0.6069837212562561, "answer_score": 0.4390668451786041, "sibling_qid": "MUM-2025-11-1212-Q011", "sibling_text": "how liner gets worned out", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L3 · T044-PART_02-G003High", "cross_family": false }, { "answer_id": "CYL-LINER-P01-003", "score": 0.597303569316864, "sibling_score": 0.597303569316864, "answer_score": null, "sibling_qid": "KOL-2023-05-1931-Q001", "sibling_text": "liner inspection liner wears types wear rate liner calibration cross question", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "From the readings: wear, wear rate, units and renewal limits", "cross_family": false }, { "answer_id": "CYL-LINER-P02-005", "score": 0.576896607875824, "sibling_score": 0.576896607875824, "answer_score": null, "sibling_qid": "KOL-2024-10-3719-Q001", "sibling_text": "liner wear increased on one unit all units reasons remedies", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L5 · T044-PART_02-G005High", "cross_family": false } ] }, { "qid": "KOC-2021-05-0937-Q005", "text": "Liner wear limit of main engine.. (as per manual it was given 0.4-0.8% of nominal diameter but he said it’s not correct )", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "KOC-2021-05-0937", "tray": "new", "candidates": [ { "answer_id": "CYL-LINER-P01-003", "score": 0.6461319327354431, "sibling_score": 0.6461319327354431, "answer_score": 0.5083317577838897, "sibling_qid": "KOL-2019-03-3223-Q004", "sibling_text": "acceptable wear rate of cyl liner", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "From the readings: wear, wear rate, units and renewal limits", "cross_family": false }, { "answer_id": "CYL-LINER-P02-003", "score": 0.6379333138465881, "sibling_score": 0.6379333138465881, "answer_score": null, "sibling_qid": "KOL-2024-12-3728-Q005", "sibling_text": "if you use worn down liner more than 0 8 what will happen", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L3 · T044-PART_02-G003High", "cross_family": false }, { "answer_id": "CYL-LINER-P02-005", "score": 0.6344195008277893, "sibling_score": 0.6344195008277893, "answer_score": null, "sibling_qid": "KOL-2026-04-3950-Q004", "sibling_text": "main engine one unit liner wear down increasing and all unit wear down increasing reasons", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L5 · T044-PART_02-G005High", "cross_family": false } ] }, { "qid": "KOC-2021-05-0938-Q001", "text": "Main bearing survey", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Bearing Clearance", "tid": "KOC-2021-05-0938", "tray": "review", "candidates": [ { "answer_id": "MAIN-BRG-A-001", "score": 0.7891071438789368, "sibling_score": 0.7891071438789368, "answer_score": null, "sibling_qid": "KOL-2018-08-3172-Q002", "sibling_text": "main bearing survey", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How is a main bearing surveyed, inspected or condition-monitored?", "cross_family": false }, { "answer_id": "CRK-DEFL-004", "score": 0.4422408401966095, "sibling_score": null, "answer_score": 0.4422408401966095, "sibling_qid": "", "sibling_text": "interpreting the readings and acting on abnormal values two derived values per throw vertical top minus bottom main bearing wear down sag hog horizontal port minus starboard side wear the magnitude is what flags the problem the subtraction order and sign depend on the instrument convention exactly as for vertical so state it reference frames datum from new previous set like for like maker s allowa", "sibling_family": "", "via": "answer_title", "answer_title": "Interpreting the readings and acting on abnormal values", "cross_family": false }, { "answer_id": "MSB-ESB-B-004", "score": 0.43972831368446347, "sibling_score": null, "answer_score": 0.43972831368446347, "sibling_qid": "", "sibling_text": "msb survey what you demonstrate to the surveyor", "sibling_family": "", "via": "answer_title", "answer_title": "MSB survey — what you demonstrate to the surveyor", "cross_family": false } ] }, { "qid": "KOC-2021-05-0938-Q003", "text": "Cast iron welding. Why we can't do", "family": "Workshop & Welding", "subtopic": "Cast Iron Welding", "tid": "KOC-2021-05-0938", "tray": "review", "candidates": [ { "answer_id": "WELD-B-001", "score": 0.7477127313613892, "sibling_score": 0.7477127313613892, "answer_score": 0.48761577606201173, "sibling_qid": "MUM-2026-07-3727-Q007", "sibling_text": "cast iron welding difficulties", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding & crack-repair of aluminium and cast iron, including metal stitching", "cross_family": false }, { "answer_id": "LH-ELEC-006", "score": 0.46686959862709043, "sibling_score": null, "answer_score": 0.46686959862709043, "sibling_qid": "", "sibling_text": "6 how would you approach a cast iron valve repair when the examiner probes welding and low hydrogen electrodes first response replace or fit a sound same size valve a welded cast iron repair is a stop gap not equal to new if welding cast iron not a plain mild steel low hydrogen rod the high carbon makes a hard brittle cracking weld", "sibling_family": "", "via": "answer_title", "answer_title": "6. How would you approach a cast-iron valve repair when the examiner probes welding and low-hydrogen electrodes?", "cross_family": false }, { "answer_id": "METAL-LOCK-001", "score": 0.4582912802696228, "sibling_score": null, "answer_score": 0.4582912802696228, "sibling_qid": "", "sibling_text": "what is metal locking stitching why use it materials benefits cold process zero heat applied at any stage for brittle cast iron and other castings where welding risks further cracking or a brittle heat affected zone", "sibling_family": "", "via": "answer_title", "answer_title": "What is metal locking / stitching, why use it, materials & benefits", "cross_family": false } ] }, { "qid": "KOC-2021-05-0938-Q004", "text": "What is COP", "family": "Refrigeration & AC", "subtopic": "1 Ton Refrigeration", "tid": "KOC-2021-05-0938", "tray": "review", "candidates": [ { "answer_id": "REF-CYC-007", "score": 0.6977911591529846, "sibling_score": 0.6977911591529846, "answer_score": 0.3412059336900711, "sibling_qid": "KOL-2021-03-1580-Q002", "sibling_text": "what is cop", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "7. COP and improving refrigeration efficiency", "cross_family": false }, { "answer_id": "AV6-P04-05", "score": 0.4228675365447998, "sibling_score": 0.4228675365447998, "answer_score": 0.35389347821474076, "sibling_qid": "KOC-2025-04-2062-Q013", "sibling_text": "cop last meeting held date and place", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Explain the COP climate-conference reference asked in the oral, including the latest meeting and its relevance to climate and GHG policy for shipping.", "cross_family": true }, { "answer_id": "REF-CYC-010", "score": 0.42011475563049316, "sibling_score": 0.42011475563049316, "answer_score": 0.30291543900966644, "sibling_qid": "KOL-2019-05-3239-Q004", "sibling_text": "d reefer plant cop definition and how to improve", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "COP of a refrigeration plant, and how to improve it", "cross_family": false } ] }, { "qid": "KOC-2021-05-0939-Q001", "text": "Multistage compression Significance", "family": "Air Compressor", "subtopic": "MAC / Air Compressor", "tid": "KOC-2021-05-0939", "tray": "new", "candidates": [ { "answer_id": "AC-STAGE-001", "score": 0.5510401129722595, "sibling_score": 0.5510401129722595, "answer_score": 0.44056305289268494, "sibling_qid": "KOL-2017-12-1333-Q003", "sibling_text": "why compressor works in stages relation between each stages", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Why multistage compression — advantages over single-stage", "cross_family": false }, { "answer_id": "COMP-RATIO-002", "score": 0.4791924059391022, "sibling_score": 0.4791924059391022, "answer_score": null, "sibling_qid": "KOL-2020-11-1559-Q002", "sibling_text": "compression ratio and importance", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Significance of compression ratio — thermodynamics, and the effect if too high or too low", "cross_family": true }, { "answer_id": "AC-STAGE-002", "score": 0.46660447120666504, "sibling_score": 0.46660447120666504, "answer_score": null, "sibling_qid": "KOL-2022-08-1705-Q005", "sibling_text": "intermediate pressure of multi stage air compressor", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Intermediate pressure / pressure ratio for minimum work", "cross_family": false } ] }, { "qid": "KOC-2021-05-0940-Q009", "text": "Refrigeration charging procedure. Ans: normal procedure using liquid charging on drier side. Weighing of refrigerant bottle before and after is the word he is expecting", "family": "Refrigeration & AC", "subtopic": "Reefer Charging", "tid": "KOC-2021-05-0940", "tray": "review", "candidates": [ { "answer_id": "REEF-CHG-001", "score": 0.7985637784004211, "sibling_score": 0.7985637784004211, "answer_score": 0.5957143008708954, "sibling_qid": "CHE-2025-12-0461-Q003", "sibling_text": "refrigerant charging procedure", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "01Charging or replenishing the refrigerant in a refrigeration / AC plant", "cross_family": false }, { "answer_id": "REEF-CHG-002", "score": 0.7732319831848145, "sibling_score": 0.7732319831848145, "answer_score": 0.5984789311885833, "sibling_qid": "KOL-2025-07-3836-Q001", "sibling_text": "how to charge liquid refrigerant the system", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "02Where and how gas and liquid refrigerant are charged into the system", "cross_family": false }, { "answer_id": "REEF-CHG-003", "score": 0.7653197050094604, "sibling_score": 0.7653197050094604, "answer_score": 0.6376461148262024, "sibling_qid": "KOL-2017-04-3051-Q003", "sibling_text": "refrigerant charging in refer compressor with function of recovery bottle with cross questions", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "03Spare and recovery refrigerant bottles: connections and uses", "cross_family": false } ] }, { "qid": "KOC-2021-05-1130-Q004", "text": "how to test diode", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Zener / Diode / Rectifier", "tid": "KOC-2021-05-1130", "tray": "review", "candidates": [ { "answer_id": "EPC-P01-02", "score": 0.7503482699394226, "sibling_score": 0.7503482699394226, "answer_score": null, "sibling_qid": "CHE-2026-05-0627-Q008", "sibling_text": "diode testing", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Types of diodes, and where diodes are used on board", "cross_family": false }, { "answer_id": "GMCM-583-A-006", "score": 0.6811540722846985, "sibling_score": 0.6811540722846985, "answer_score": 0.5136149942874908, "sibling_qid": "KOC-2025-11-1652-Q001", "sibling_text": "how to test diodes and transistors using a multimeter", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "06. Testing diodes and transistors with a multimeter", "cross_family": false }, { "answer_id": "EPC-P02-01", "score": 0.6611055731773376, "sibling_score": 0.6611055731773376, "answer_score": null, "sibling_qid": "KOL-2022-08-2593-Q004", "sibling_text": "what is zener diode how diode test onboard", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a zener diode? Draw its symbol, explain its working principle, and draw and explain its characteristic curve including the zener (breakdown) voltage.", "cross_family": false } ] }, { "qid": "KOC-2021-05-1132-Q006", "text": "Protective Discrimination", "family": "Electrical - Protection & Relays", "subtopic": "Protection / Relays", "tid": "KOC-2021-05-1132", "tray": "new", "candidates": [ { "answer_id": "T038-P01-002", "score": 0.6037243008613586, "sibling_score": 0.6037243008613586, "answer_score": null, "sibling_qid": "MUM-2026-04-2098-Q002", "sibling_text": "hv special protections", "sibling_family": "", "via": "sibling", "answer_title": "HV system onboard — layout, components, applications, earthing & protection", "cross_family": false }, { "answer_id": "IMSP-007", "score": 0.5145924091339111, "sibling_score": 0.5145924091339111, "answer_score": null, "sibling_qid": "MUM-2022-03-1326-Q008", "sibling_text": "type of protections provided in starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What safeties and protections are provided in an induction motor and its starter — overload, short-circuit, thermal? What about a motor on deck, and large three-phase motors?", "cross_family": true }, { "answer_id": "IP-ENCL-001", "score": 0.4911899268627167, "sibling_score": 0.4911899268627167, "answer_score": null, "sibling_qid": "KOC-2025-01-1468-Q013", "sibling_text": "ingress protection explain each denotions", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "IP rating of motors — what the numbers mean", "cross_family": true } ] }, { "qid": "KOC-2021-05-1133-Q005", "text": "Frame no. of motors and how to order a motor?", "family": "Electrical - Motors & Starters", "subtopic": "Frame Number", "tid": "KOC-2021-05-1133", "tray": "review", "candidates": [ { "answer_id": "ELECTRICAL-M-A-01", "score": 0.7041893601417542, "sibling_score": 0.7041893601417542, "answer_score": 0.502593407034874, "sibling_qid": "NOI-2026-09-0005-Q009", "sibling_text": "frame number of motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Motor Frame Number", "cross_family": false }, { "answer_id": "BRG-NOM-001", "score": 0.6937248110771179, "sibling_score": 0.6937248110771179, "answer_score": null, "sibling_qid": "NOI-2026-09-0015-Q005", "sibling_text": "how to order motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Bearing Numbers, Suffixes and What to State When Ordering", "cross_family": false }, { "answer_id": "SGM-ELEC-002", "score": 0.587890088558197, "sibling_score": 0.587890088558197, "answer_score": 0.4497417390346527, "sibling_qid": "MUM-2025-08-1605-Q001", "sibling_text": "steering motor type and difference from other er motors how to order motor over speed test over current test", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What type of motor is the steering gear motor, how does it differ from other engine-room motors, and how do you order one?", "cross_family": false } ] }, { "qid": "KOC-2021-05-1754-Q001", "text": "boiler safety valve setting", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2021-05-1754", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-001", "score": 0.8649305105209351, "sibling_score": 0.8649305105209351, "answer_score": null, "sibling_qid": "CHE-2026-04-0500-Q005", "sibling_text": "boiler safety valve setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.8231759071350098, "sibling_score": 0.8231759071350098, "answer_score": null, "sibling_qid": "MUM-2026-03-2935-Q013", "sibling_text": "boiler safety valve setting in presence of surveyor after survey", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.8126764893531799, "sibling_score": 0.8126764893531799, "answer_score": null, "sibling_qid": "KOC-2026-05-0034-Q010", "sibling_text": "boiler safety valve types and how safety valve is set complete procedures", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOC-2021-05-1756-Q004", "text": "Forming in Reefer crankcase", "family": "Refrigeration & AC", "subtopic": "Liquid Ingress", "tid": "KOC-2021-05-1756", "tray": "new", "candidates": [ { "answer_id": "REEF-COMP-008", "score": 0.6053457856178284, "sibling_score": 0.6053457856178284, "answer_score": null, "sibling_qid": "MUM-2026-04-1313-Q006", "sibling_text": "reefer conpressor crankcase foaming", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Valves, clearances, oil carry-over, refrigerant-in-oil, frosting, tandem valves, cooling — fault checks", "cross_family": false }, { "answer_id": "REEF-COMP-004", "score": 0.5299068093299866, "sibling_score": 0.5299068093299866, "answer_score": null, "sibling_qid": "KOL-2025-07-3834-Q005", "sibling_text": "oil charging in reefer", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Charging, replenishing and draining compressor lube oil — including with no charging pump", "cross_family": false }, { "answer_id": "REEF-COMP-006", "score": 0.5287474989891052, "sibling_score": 0.5287474989891052, "answer_score": 0.3594099462032318, "sibling_qid": "KOC-2023-01-1806-Q001", "sibling_text": "reefer rotary seal diagram", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Compressor shaft seal (mechanical/rotary seal) — arrangement, lubrication, renewal, leak action", "cross_family": false } ] }, { "qid": "KOC-2021-05-1756-Q009", "text": "Importance of hydrazine dosing and values. Internal no questions. Result: passed", "family": "Boilers - Operations & Firing", "subtopic": "Uptake Fire", "tid": "KOC-2021-05-1756", "tray": "new", "candidates": [ { "answer_id": "BLR-CHEM-006", "score": 0.575094997882843, "sibling_score": 0.575094997882843, "answer_score": 0.42970733940601347, "sibling_qid": "MUM-2022-04-0938-Q007", "sibling_text": "why hydrazine not dosed in hot well or boiler in one dose", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "6. Hydrazine / oxygen-scavenger dosing and safety", "cross_family": true }, { "answer_id": "BWTEST-C-002", "score": 0.5458171367645264, "sibling_score": 0.5458171367645264, "answer_score": 0.3307814970612526, "sibling_qid": "KOC-2021-05-2022-Q013", "sibling_text": "role of hydrazine", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Oxygen, hydrazine & sulphite tests — removing the main corrodent", "cross_family": true }, { "answer_id": "BWTEST-A-001", "score": 0.4617711007595062, "sibling_score": 0.4617711007595062, "answer_score": 0.3637813329696655, "sibling_qid": "KOC-2024-03-1836-Q006", "sibling_text": "tell all boiler water tests purpose of hydrazine test", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": true } ] }, { "qid": "KOC-2021-05-1757-Q001", "text": "Swelling and Shrinkage?2 controller and 3 controller system", "family": "Boilers - Operations & Firing", "subtopic": "Uptake Fire", "tid": "KOC-2021-05-1757", "tray": "new", "candidates": [ { "answer_id": "LWL-001", "score": 0.6392577290534973, "sibling_score": 0.6392577290534973, "answer_score": null, "sibling_qid": "KOL-2021-12-3498-Q002", "sibling_text": "shrinkage and swelling how to control what are 3 elements in the 3 elements 2 control system feed flow transmitter working", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Explain three-element boiler water level control — the three elements, how it removes swell and shrinkage, and how the PID works", "cross_family": false }, { "answer_id": "DP-TX-003", "score": 0.5660629868507385, "sibling_score": 0.5660629868507385, "answer_score": 0.3657966941595077, "sibling_qid": "KOL-2022-05-1686-Q007", "sibling_text": "3 element 2 term controller working", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler feed-water control with the DP cell — single, two and three-element", "cross_family": false }, { "answer_id": "ACC-603-005", "score": 0.524092435836792, "sibling_score": 0.524092435836792, "answer_score": 0.3985947102308273, "sibling_qid": "KOL-2022-01-4004-Q009", "sibling_text": "3 element control", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Two-element and three-element boiler water level control", "cross_family": false } ] }, { "qid": "KOC-2021-05-1758-Q003", "text": "all exhaust temperatures increasing in auxillary engines", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Decarb / Balancing / High Exhaust Temperature", "tid": "KOC-2021-05-1758", "tray": "review", "candidates": [ { "answer_id": "EXH-T-HI-001", "score": 0.7060484886169434, "sibling_score": 0.7060484886169434, "answer_score": null, "sibling_qid": "KOC-2023-04-0979-Q007", "sibling_text": "exhaust temp of main engine all unit increasing reasons", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "All units exhaust temperature high — causes and actions", "cross_family": true }, { "answer_id": "AE-HOT-BLOW-005", "score": 0.6882652640342712, "sibling_score": 0.6882652640342712, "answer_score": null, "sibling_qid": "KOL-2018-03-1361-Q007", "sibling_text": "ae one unit exhaust temp rising all unit rising why how to confirm nozzle ring is chocked there is no tc rpm monitor", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Auxiliary engine units rising — one versus all, and confirming a choked turbocharger nozzle ring", "cross_family": false }, { "answer_id": "EXH-T-HI-002", "score": 0.6842416524887085, "sibling_score": 0.6842416524887085, "answer_score": null, "sibling_qid": "MUM-2025-12-1222-Q005", "sibling_text": "one unit exhaust temp rising", "sibling_family": "2-Stroke - 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Purpose and outputs of an inclining experiment", "cross_family": false } ] }, { "qid": "KOC-2021-05-1758-Q005", "text": "refer crank case ice formation", "family": "Refrigeration & AC", "subtopic": "Liquid Ingress", "tid": "KOC-2021-05-1758", "tray": "new", "candidates": [ { "answer_id": "REEF-COMP-010", "score": 0.6240401864051819, "sibling_score": 0.6240401864051819, "answer_score": null, "sibling_qid": "KOL-2016-07-1222-Q004", "sibling_text": "oil pan heater in refer compressor", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Starting, changing over and lubricating a reefer compressor/plant — after provisions and in normal running", "cross_family": false }, { "answer_id": "REEF-COMP-008", "score": 0.6195680499076843, "sibling_score": 0.6195680499076843, "answer_score": null, "sibling_qid": "MUM-2026-04-1313-Q006", "sibling_text": "reefer conpressor crankcase foaming", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Valves, clearances, oil carry-over, refrigerant-in-oil, frosting, tandem valves, cooling — fault checks", "cross_family": false }, { "answer_id": "CRKC-INSP-002", "score": 0.6137528419494629, "sibling_score": 0.6137528419494629, "answer_score": null, "sibling_qid": "CHE-2021-07-0183-Q001", "sibling_text": "crankcase inspection to do in heavy weather what special measure taken", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Quick crankcase inspection after rough weather or grounding (short port stay)", "cross_family": true } ] }, { "qid": "KOC-2021-05-1759-Q001", "text": "Cylinder liner removal", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "KOC-2021-05-1759", "tray": "review", "candidates": [ { "answer_id": "CYL-LINER-P03-008", "score": 0.7520224452018738, "sibling_score": 0.7520224452018738, "answer_score": 0.5653195798397064, "sibling_qid": "KOL-2021-07-3431-Q002", "sibling_text": "me liner removal procedure after cyl head piston removal", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Main-engine cylinder liner removal — full procedure, the lifting tool, and precautions", "cross_family": false }, { "answer_id": "CYL-LINER-P02-002", "score": 0.6960077881813049, "sibling_score": 0.6960077881813049, "answer_score": null, "sibling_qid": "MUM-2026-05-3238-Q009", "sibling_text": "liner seized how to remove", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L2 · T044-PART_02-G002High", "cross_family": false }, { "answer_id": "CYL-LINER-P03-003", "score": 0.6953569054603577, "sibling_score": 0.6953569054603577, "answer_score": 0.548591661453247, "sibling_qid": "MUM-2026-07-3848-Q001", "sibling_text": "liner seized how to remove", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Removing a stuck cylinder liner — how, and where do you jack?", "cross_family": false } ] }, { "qid": "KOC-2021-05-1759-Q006", "text": "Setting up EGB Safety valve. 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Ans: icing of evaporator, thermostatic expansion valve, solenoid valve not working, belt of fan broken, breaker trip, air filter choke", "family": "Refrigeration & AC", "subtopic": "Refrigeration Faults / Checks", "tid": "KOC-2021-05-1760", "tray": "review", "candidates": [ { "answer_id": "TEV-TXV-005", "score": 0.6757254004478455, "sibling_score": 0.6757254004478455, "answer_score": null, "sibling_qid": "KOL-2017-05-3052-Q004", "sibling_text": "tev icing on outer surface reasons whats the level of the refrigerant in receiver while running", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Throttling process and superheat control across the TEV", "cross_family": false }, { "answer_id": "REEF-COMP-008", "score": 0.6735032200813293, "sibling_score": 0.6735032200813293, "answer_score": 0.5473328649997711, "sibling_qid": "MUM-2026-03-2647-Q005", "sibling_text": "in refer you see icing in suction side reason which room is having problem", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Valves, clearances, oil carry-over, refrigerant-in-oil, frosting, tandem valves, cooling — fault checks", "cross_family": false }, { "answer_id": "TEV-TXV-007", "score": 0.6693248152732849, "sibling_score": 0.6693248152732849, "answer_score": 0.5531548112630844, "sibling_qid": "MUM-2026-03-2642-Q028", "sibling_text": "expansion valve faulty no spare told abt using bypass needle valve but not accepting", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Faulty TEV in a meat/fish room with no spare — diagnosis and management", "cross_family": false } ] }, { "qid": "KOC-2021-05-2022-Q004", "text": "Equalising v/v function and explain internal and external equalising vv", "family": "Boilers - Construction & Components", "subtopic": "Feed Check Valve", "tid": "KOC-2021-05-2022", "tray": "new", "candidates": [ { "answer_id": "TEV-TXV-003", "score": 0.5875813364982605, "sibling_score": 0.5875813364982605, "answer_score": 0.33813777565956116, "sibling_qid": "MUM-2026-06-3417-Q004", "sibling_text": "external and internal equalising", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Equalizing line — internal vs external equalized TEV", "cross_family": false }, { "answer_id": "EQ-LINE-001", "score": 0.46442359685897827, "sibling_score": 0.46442359685897827, "answer_score": 0.2979293972253799, "sibling_qid": "KOL-2020-10-1555-Q005", "sibling_text": "equilising vv purpose", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Purpose and function of the equalising line / equalising valve in refrigeration service", "cross_family": true }, { "answer_id": "GEN-LSI-B-003", "score": 0.42947325110435486, "sibling_score": 0.42947325110435486, "answer_score": 0.2810848504304886, "sibling_qid": "KOL-2022-05-2560-Q007", "sibling_text": "what is equalizing", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "03. Purpose of the equalising line / equalising connection in parallel operation", "cross_family": true } ] }, { "qid": "KOC-2021-05-2022-Q012", "text": "Boiler safety valve setting", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2021-05-2022", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-001", "score": 0.8649305105209351, "sibling_score": 0.8649305105209351, "answer_score": null, "sibling_qid": "CHE-2026-04-0500-Q005", "sibling_text": "boiler safety valve setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.8231759667396545, "sibling_score": 0.8231759667396545, "answer_score": null, "sibling_qid": "MUM-2026-03-2935-Q013", "sibling_text": "boiler safety valve setting in presence of surveyor after survey", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.8126764893531799, "sibling_score": 0.8126764893531799, "answer_score": null, "sibling_qid": "KOC-2026-05-0034-Q010", "sibling_text": "boiler safety valve types and how safety valve is set complete procedures", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOC-2021-05-2022-Q017", "text": "Bunker samples marpol and ship sample for what", "family": "MARPOL - General & Compliance", "subtopic": "Marpol Sample / In-Use", "tid": "KOC-2021-05-2022", "tray": "review", "candidates": [ { "answer_id": "BUNK-SAMP-002", "score": 0.769422709941864, "sibling_score": 0.769422709941864, "answer_score": 0.581954276561737, "sibling_qid": "KOC-2025-07-0625-Q005", "sibling_text": "4 bunker sample in use marpol ship sample difference", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "The three MARPOL fuel-oil samples: delivered, in-use, onboard", "cross_family": false }, { "answer_id": "BUNK-SAMP-005", "score": 0.698695957660675, "sibling_score": 0.698695957660675, "answer_score": 0.5184119582176209, "sibling_qid": "KOL-2025-09-1030-Q006", "sibling_text": "bunker sample minimum no plus how many month s to keep onboard lab sample lost in the way what to do ship sample leaked too den what to do", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Number of samples, retention period, storage and lost or leaked samples", "cross_family": false }, { "answer_id": "MARPOL-OV-003", "score": 0.6357094049453735, "sibling_score": 0.6357094049453735, "answer_score": null, "sibling_qid": "KOC-2023-10-0225-Q004", "sibling_text": "marpol annex and all records as per marpol", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "General overview of MARPOL and all annexes", "cross_family": false } ] }, { "qid": "KOC-2021-05-2022-Q018", "text": "Sweep test. In detail", "family": "NDT & Material Testing", "subtopic": "Sweep Test", "tid": "KOC-2021-05-2022", "tray": "new", "candidates": [ { "answer_id": "NDT-METH-P02-001", "score": 0.40442562103271484, "sibling_score": 0.40442562103271484, "answer_score": null, "sibling_qid": "KOL-2022-09-3569-Q002", "sibling_text": "mpt testing in detail", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "1. Magnetic Particle Inspection (MPI / MPT)", "cross_family": false }, { "answer_id": "IMP-CHARPY-001", "score": 0.40017169713974, "sibling_score": 0.40017169713974, "answer_score": null, "sibling_qid": "KOL-2021-08-3436-Q004", "sibling_text": "impact test everything", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "What is an impact test, and what is its purpose or significance?", "cross_family": false }, { "answer_id": "NDT-METH-P01-001", "score": 0.3884209990501404, "sibling_score": 0.3884209990501404, "answer_score": null, "sibling_qid": "KOL-2026-01-3909-Q005", "sibling_text": "two ndt tests", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "NDT methods, NDT vs destructive testing, and onboard use", "cross_family": false } ] }, { "qid": "KOC-2021-05-2022-Q022", "text": "Slide type fuel valve explain overhaul and testing", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Injector", "tid": "KOC-2021-05-2022", "tray": "review", "candidates": [ { "answer_id": "FINJ-003", "score": 0.700853168964386, "sibling_score": 0.700853168964386, "answer_score": 0.4680053830146789, "sibling_qid": "KOL-2018-01-1345-Q004", "sibling_text": "slide type fuel valve working", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Sac volume, zero-sac and the slide-type fuel valve development", "cross_family": false }, { "answer_id": "FINJ-002", "score": 0.6950103044509888, "sibling_score": 0.6950103044509888, "answer_score": null, "sibling_qid": "MUM-2024-06-0959-Q008", "sibling_text": "testing of fuel valve after overhaul", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel injector overhaul and testing — spray pattern and opening pressure", "cross_family": false }, { "answer_id": "COS343-001", "score": 0.6520465016365051, "sibling_score": 0.6520465016365051, "answer_score": 0.4696972042322159, "sibling_qid": "MUM-2026-05-3163-Q004", "sibling_text": "what is cut off slide in fuel valve", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "What is the fuel-pump “cut-off” (cut-off slide) and what does it do?", "cross_family": false } ] }, { "qid": "KOC-2021-06-0003-Q001", "text": "Explosive meter and tankscope", "family": "Gas Detection & Instruments", "subtopic": "Explosimeter / Gas Detector", "tid": "KOC-2021-06-0003", "tray": "review", "candidates": [ { "answer_id": "GAS-DET-006", "score": 0.8291825652122498, "sibling_score": 0.8291825652122498, "answer_score": 0.5942835509777069, "sibling_qid": "MUM-2026-09-3960-Q006", "sibling_text": "tank scope and explosive meter why used explosive meter if tank scope is there", "sibling_family": "Gas Detection & Instruments", "via": "sibling", "answer_title": "Tankscope vs explosimeter: construction, working, where to use, gases", "cross_family": false }, { "answer_id": "GAS-DET-008", "score": 0.7326971888542175, "sibling_score": 0.7326971888542175, "answer_score": 0.5507985830307006, "sibling_qid": "KOC-2026-09-2176-Q003", "sibling_text": "explosimeter working", "sibling_family": "Gas Detection & Instruments", "via": "sibling", "answer_title": "Explosimeter: construction, working, calibration, gases detected", "cross_family": false }, { "answer_id": "GAS-DET-007", "score": 0.5884282171726226, "sibling_score": null, "answer_score": 0.5884282171726226, "sibling_qid": "", "sibling_text": "checking hydrocarbon content in a tank or space choose by atmosphere purpose oxygen present flammable check explosimeter lel inert high concentration tankscope vol calibrate zero and bump test before use fit the correct filter and a sound sample line", "sibling_family": "", "via": "answer_title", "answer_title": "Checking hydrocarbon content in a tank or space", "cross_family": false } ] }, { "qid": "KOC-2021-06-0003-Q007", "text": "Frame number", "family": "SOLAS", "subtopic": "Keel & Framing", "tid": "KOC-2021-06-0003", "tray": "review", "candidates": [ { "answer_id": "KGF-A-002", "score": 0.8870651125907898, "sibling_score": 0.8870651125907898, "answer_score": 0.5910895437002182, "sibling_qid": "KOC-2026-08-2115-Q010", "sibling_text": "frame number", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Frame numbering, spacing & identification", "cross_family": false }, { "answer_id": "ELECTRICAL-M-A-01", "score": 0.8377660512924194, "sibling_score": 0.8377660512924194, "answer_score": 0.4852834105491638, "sibling_qid": "MUM-2026-03-1997-Q004", "sibling_text": "frame number", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Motor Frame Number", "cross_family": true }, { "answer_id": "SHELL-PLT-A-001", "score": 0.7162874341011047, "sibling_score": 0.7162874341011047, "answer_score": null, "sibling_qid": "KOC-2024-08-0392-Q013", "sibling_text": "frame numbering shell expansion plan", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "The shell expansion plan, and how you identify a plate", "cross_family": false } ] }, { "qid": "KOC-2021-06-0004-Q005", "text": "lock out and tag out method procedure for MSW PUMP overhauling? (he want to listen tht valves should be closed, locked and keep the key safe)", "family": "Risk & Safety Management", "subtopic": "LOTO / Isolation Permit", "tid": "KOC-2021-06-0004", "tray": "new", "candidates": [ { "answer_id": "ESE-P01-005", "score": 0.6336812376976013, "sibling_score": 0.6336812376976013, "answer_score": null, "sibling_qid": "KOC-2025-06-1040-Q010", "sibling_text": "pump room entry procedure", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "Cargo tank, pump-room, ballast tank or duct-keel entry preparation", "cross_family": false }, { "answer_id": "PR-SAFE-A-003", "score": 0.6333111524581909, "sibling_score": 0.6333111524581909, "answer_score": null, "sibling_qid": "KOC-2023-12-1314-Q007", "sibling_text": "pump room safeties lighting and ventilation inter lock", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Pump-room ventilation requirements and interlocks", "cross_family": true }, { "answer_id": "SCAV-323-P02-006", "score": 0.631637454032898, "sibling_score": 0.631637454032898, "answer_score": null, "sibling_qid": "KOC-2024-07-1845-Q005", "sibling_text": "needs to mention close scavenge drain valve as a safety measures rest all comes after it isolating of unit procedures increasing of cyl lubrication how to do that", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Scavenge drain analysis and high scavenge-drain level", "cross_family": true } ] }, { "qid": "KOC-2021-06-0004-Q008", "text": "load line survay preparation as 2E, only based on engine room", "family": "Load Line Convention", "subtopic": "Load Line Convention", "tid": "KOC-2021-06-0004", "tray": "review", "candidates": [ { "answer_id": "LLC-SURV-P01-001", "score": 0.6987175941467285, "sibling_score": 0.6987175941467285, "answer_score": 0.518278408050537, "sibling_qid": "KOC-2024-11-0473-Q009", "sibling_text": "load line survey preparation as 2e inside er and deck", "sibling_family": "", "via": "sibling", "answer_title": "Load line survey preparation as Second Engineer: engine-room scope, machinery openings, tanks/vents, valves and overboard checks", "cross_family": false }, { "answer_id": "LL-CONV-P04-002", "score": 0.6917275190353394, "sibling_score": 0.6917275190353394, "answer_score": null, "sibling_qid": "KOL-2018-01-0140-Q001", "sibling_text": "loadline survey preparations all points applicable to engine room", "sibling_family": "", "via": "sibling", "answer_title": "Load Line Convention, certificates, assigning authority and detention risk", "cross_family": false }, { "answer_id": "LLC-SURV-P02-001", "score": 0.6818966865539551, "sibling_score": 0.6818966865539551, "answer_score": null, "sibling_qid": "KOC-2023-08-0210-Q011", "sibling_text": "load line survey as 2nd eng related to eng room", "sibling_family": "", "via": "sibling", "answer_title": "1. Load line survey preparation: readiness, weather-tight checks and attendance", "cross_family": false } ] }, { "qid": "KOC-2021-06-0004-Q010", "text": "Explain marpol annexes for container ship", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "Marpol Annex Certificates", "tid": "KOC-2021-06-0004", "tray": "review", "candidates": [ { "answer_id": "AV6-P01-02", "score": 0.6967829465866089, "sibling_score": 0.6967829465866089, "answer_score": null, "sibling_qid": "KOL-2022-07-0657-Q004", "sibling_text": "marpol how many annexes about annex 6 regulation 18", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Explain Regulation 18 — fuel oil availability and quality — and the shipboard compliance duties.", "cross_family": false }, { "answer_id": "AVI-SCOPE-004", "score": 0.6896106600761414, "sibling_score": 0.6896106600761414, "answer_score": null, "sibling_qid": "KOL-2021-08-0549-Q007", "sibling_text": "annex 6 marpol in details", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Explain MARPOL Annex VI: purpose, scope, chapters/regulations and main onboard requirements.", "cross_family": false }, { "answer_id": "MARPOL-OV-003", "score": 0.6865159869194031, "sibling_score": 0.6865159869194031, "answer_score": 0.5392590075731277, "sibling_qid": "MUM-2026-09-3916-Q003", "sibling_text": "marpol annexes all", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "General overview of MARPOL and all annexes", "cross_family": true } ] }, { "qid": "KOC-2021-06-1134-Q007", "text": "oscillator and types", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Electronic Circuits / Filters", "tid": "KOC-2021-06-1134", "tray": "review", "candidates": [ { "answer_id": "TC-A-009", "score": 0.7026402354240417, "sibling_score": 0.7026402354240417, "answer_score": 0.384355303645134, "sibling_qid": "KOC-2024-02-1332-Q004", "sibling_text": "oscillator explain", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "The LC circuit, resonance and the oscillator", "cross_family": false }, { "answer_id": "VIB-BAL-A-001", "score": 0.5431512594223022, "sibling_score": 0.5431512594223022, "answer_score": 0.38191162943840024, "sibling_qid": "MUM-2024-10-0964-Q007", "sibling_text": "vibration types", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "VIB-A-01 — Engine vibration — what it is, its types and causes, and how it is controlled", "cross_family": true }, { "answer_id": "VIB-BAL-C-FINAL-1-001", "score": 0.5301660299301147, "sibling_score": 0.5301660299301147, "answer_score": null, "sibling_qid": "CHE-2026-05-0559-Q001", "sibling_text": "types of vibrations first nd second order vibrations", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "First- & Second-Order External Moments, Guide-Force Moments & Moment Compensators", "cross_family": true } ] }, { "qid": "KOC-2021-06-1135-Q004", "text": "Discrimination", "family": "Electrical - Protection & Relays", "subtopic": "Protection / Relays", "tid": "KOC-2021-06-1135", "tray": "new", "candidates": [ { "answer_id": "IMDG-006", "score": 0.5491968393325806, "sibling_score": 0.5491968393325806, "answer_score": null, "sibling_qid": "KOC-2025-08-0646-Q013", "sibling_text": "segregation criteria", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Explain the segregation of dangerous cargo and the segregation criteria", "cross_family": true }, { "answer_id": "PSC-SURV-P01-003", "score": 0.4953162670135498, "sibling_score": 0.4953162670135498, "answer_score": null, "sibling_qid": "KOL-2019-08-0303-Q001", "sibling_text": "r o and classification society and differences and x ques", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the difference between a Recognised Organisation (RO) and a classification society?", "cross_family": true }, { "answer_id": "ISMNC-004", "score": 0.48962321877479553, "sibling_score": 0.48962321877479553, "answer_score": null, "sibling_qid": "KOL-2025-07-0997-Q007", "sibling_text": "non conformity and observation difference", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Differentiate between an observation and a non-conformity under the ISM Code.", "cross_family": true } ] }, { "qid": "KOC-2021-06-1135-Q005", "text": "When gen paralleling Voltage is same but current is different.what to do", "family": "Electrical - Generator & Alternator", "subtopic": "Load Sharing Imbalance", "tid": "KOC-2021-06-1135", "tray": "review", "candidates": [ { "answer_id": "GEN-LSI-B-001", "score": 0.7462123036384583, "sibling_score": 0.7462123036384583, "answer_score": 0.5512249708175659, "sibling_qid": "KOL-2025-12-2927-Q002", "sibling_text": "two generators are running in parallel voltage same current same but kw different reason", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01. Two alternators in parallel — same kW but different current and power factor: cause and correction", "cross_family": false }, { "answer_id": "LS-IMB-A-001", "score": 0.7161506414413452, "sibling_score": 0.7161506414413452, "answer_score": 0.5534146666526795, "sibling_qid": "KOL-2022-08-2592-Q001", "sibling_text": "two generators running in parallel kw is same but current drawn is different why and how to rectify", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Two paralleled generators sharing unequal load — cause and correction", "cross_family": false }, { "answer_id": "LS-IMB-A-003", "score": 0.5539875745773315, "sibling_score": null, "answer_score": 0.5539875745773315, "sibling_qid": "", "sibling_text": "3 paralleling generators of different ratings and the emergency generator question different ratings can parallel each must stay withinits ownrated kw current share load in proportion to rating per unit not equally set the split on the governors watch that neither machine exceeds its rated kw or current smaller set first", "sibling_family": "", "via": "answer_title", "answer_title": "3. Paralleling generators of different ratings, and the emergency-generator question", "cross_family": false } ] }, { "qid": "KOC-2021-06-1762-Q003", "text": "Boiler safety valve pressure settings", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2021-06-1762", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-001", "score": 0.8725727796554565, "sibling_score": 0.8725727796554565, "answer_score": null, "sibling_qid": "CHE-2026-09-3931-Q006", "sibling_text": "boiler safety valve pressure setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.8165008425712585, "sibling_score": 0.8165008425712585, "answer_score": null, "sibling_qid": "CHE-2026-09-3919-Q009", "sibling_text": "boiler safety valve setting in front of surveyor first and second safety valve pressure difference", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.8079176545143127, "sibling_score": 0.8079176545143127, "answer_score": null, "sibling_qid": "CHE-2026-05-0583-Q002", "sibling_text": "boiler safety valve lifting pressure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOC-2021-06-1762-Q008", "text": "what is iron fire?", "family": "Boilers - Operations & Firing", "subtopic": "Uptake Fire", "tid": "KOC-2021-06-1762", "tray": "new", "candidates": [ { "answer_id": "SIH-FIRE-003", "score": 0.581057608127594, "sibling_score": 0.581057608127594, "answer_score": 0.44360045790672303, "sibling_qid": "KOL-2017-08-1322-Q005", "sibling_text": "iron fire dont tell me the temp tell the chemical reactions", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Iron fire — what are the chemical reactions involved?", "cross_family": false }, { "answer_id": "SIH-FIRE-002", "score": 0.54899001121521, "sibling_score": 0.54899001121521, "answer_score": 0.3489198237657547, "sibling_qid": "MUM-2026-06-3553-Q004", "sibling_text": "soot fire iron fire hydrogen fire", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Explain soot fire, hydrogen fire and iron/metal fire in a boiler / EGB, with the temperature ranges", "cross_family": false }, { "answer_id": "UPT-FIRE-003", "score": 0.44656315445899963, "sibling_score": 0.44656315445899963, "answer_score": null, "sibling_qid": "KOC-2024-10-2055-Q010", "sibling_text": "egb fire", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Fire in the exhaust gas boiler or economiser — actions and instructions to the duty engineers", "cross_family": false } ] }, { "qid": "KOC-2021-06-1762-Q009", "text": "Inspections to be carried out on rudder in drydock. How to check its integrity? Internal:", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOC-2021-06-1762", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.7817544341087341, "sibling_score": 0.7817544341087341, "answer_score": 0.5360643923282623, "sibling_qid": "NOI-2026-09-0012-Q007", "sibling_text": "rudder inspection in detail in dry dock", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "DUS-P5-05", "score": 0.6148909091949463, "sibling_score": null, "answer_score": 0.6148909091949463, "sibling_qid": "", "sibling_text": "rudder checks and rudder blade tightness leak test in drydock visual checks coating condition cavitation erosion on the blade leading edge propeller side face sacrificial anodes against the approved cathodic protection plan grounding continuity against the approved acceptance criterion plate and weld cracks pintle clearance measured with feeler the numerical acceptance limit is class specific and ", "sibling_family": "", "via": "answer_title", "answer_title": "Rudder checks and rudder-blade tightness/leak test in drydock", "cross_family": false }, { "answer_id": "DDHSC-003", "score": 0.5562413096427917, "sibling_score": null, "answer_score": 0.5562413096427917, "sibling_qid": "", "sibling_text": "what checks do you carry out on the hull propeller and rudder in drydock including jumping clearance hull shell plating cracks coating weld seams thickness gauging areas propeller erosion pitting cavitation cracks dye penetrant cone cap tight rope guard propeller drop wear", "sibling_family": "", "via": "answer_title", "answer_title": "What checks do you carry out on the hull, propeller and rudder in drydock, including jumping clearance?", "cross_family": false } ] }, { "qid": "KOC-2021-07-0005-Q001", "text": "(thomas kurian) what are the topics covering in fuction 3", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOC-2021-07-0005", "tray": "new", "candidates": [ { "answer_id": "SEEMP-123-B-001", "score": 0.5130987167358398, "sibling_score": 0.5130987167358398, "answer_score": null, "sibling_qid": "KOC-2026-03-0880-Q002", "sibling_text": "function 3 contents", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SEEMP Part III — the ship's operational carbon-intensity (CII) plan", "cross_family": true }, { "answer_id": "IMO-CODES-P03-001", "score": 0.4501040577888489, "sibling_score": 0.4501040577888489, "answer_score": null, "sibling_qid": "KOC-2026-03-0863-Q002", "sibling_text": "what all topics cover under fn 3 and explain the conventions marpol solas mlc stcw", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Important IMO conventions and codes: parent links", "cross_family": true }, { "answer_id": "UNL-330-001", "score": 0.4418879747390747, "sibling_score": 0.4418879747390747, "answer_score": null, "sibling_qid": "KOL-2022-04-1673-Q005", "sibling_text": "3 function of unloder x que", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "What is the function of the main air compressor unloader?", "cross_family": true } ] }, { "qid": "KOC-2021-07-0005-Q003", "text": "define freeboard and purpose", "family": "SOLAS", "subtopic": "Load Line Convention", "tid": "KOC-2021-07-0005", "tray": "review", "candidates": [ { "answer_id": "TPC-FWA-010", "score": 0.661165177822113, "sibling_score": 0.661165177822113, "answer_score": 0.5376373052597045, "sibling_qid": "KOL-2017-01-0052-Q003", "sibling_text": "define freeboard draught displacement m tpc", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Define freeboard, draught, displacement and TPC", "cross_family": false }, { "answer_id": "LLC-P05-001", "score": 0.6557175517082214, "sibling_score": 0.6557175517082214, "answer_score": 0.5098797440528869, "sibling_qid": "KOL-2022-08-0667-Q006", "sibling_text": "define freeboard deck", "sibling_family": "", "via": "sibling", "answer_title": "Freeboard, deck line, Plimsoll mark, assignment and scantling draft", "cross_family": false }, { "answer_id": "RES-BUOY-005", "score": 0.6448893547058105, "sibling_score": 0.6448893547058105, "answer_score": 0.5019891381263732, "sibling_qid": "KOC-2022-02-0062-Q004", "sibling_text": "freeboard purpose reserve buoyancy pupose", "sibling_family": "", "via": "sibling", "answer_title": "Freeboard and reserve buoyancy — the relationship", "cross_family": false } ] }, { "qid": "KOC-2021-07-0006-Q003", "text": "Lng reluiquification plant", "family": "Cargo Ops - Gas Carriers", "subtopic": "Reliquefaction Plant", "tid": "KOC-2021-07-0006", "tray": "new", "candidates": [ { "answer_id": "BLEVE-BOG-004", "score": 0.6354548335075378, "sibling_score": 0.6354548335075378, "answer_score": 0.4257976531982422, "sibling_qid": "CHE-2026-02-0115-Q003", "sibling_text": "how to you maintain gas vapour from tank i explained about the lng carriers in my vessel but he was expecting a re liquefaction plant from lpg", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "How are LNG boil-off, tank pressure and cargo temperature controlled?", "cross_family": false }, { "answer_id": "LPG-LNG-002", "score": 0.624370276927948, "sibling_score": 0.624370276927948, "answer_score": null, "sibling_qid": "CHE-2026-08-0663-Q004", "sibling_text": "lng bunkering procedure", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "LNG bunkering – preparation and procedure", "cross_family": false }, { "answer_id": "LPG-LNG-001", "score": 0.6213409900665283, "sibling_score": 0.6213409900665283, "answer_score": null, "sibling_qid": "KOC-2026-08-2105-Q007", "sibling_text": "commercial application of both lng and lpg", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "LPG vs LNG – properties, carriage and comparison", "cross_family": false } ] }, { "qid": "KOC-2021-07-0006-Q004", "text": "Safe manning document? Issued by whom?", "family": "MLC", "subtopic": "MLC / DMLC / Work-Rest", "tid": "KOC-2021-07-0006", "tray": "new", "candidates": [ { "answer_id": "MSB-ESB-E-001", "score": 0.48007094860076904, "sibling_score": 0.48007094860076904, "answer_score": null, "sibling_qid": "KOC-2023-12-1308-Q001", "sibling_text": "msbd safeties", "sibling_family": "", "via": "sibling", "answer_title": "What safeties, protection trips, relays and alarms are provided on the MSB / ESB, and how are they tested?", "cross_family": false }, { "answer_id": "SGS-BF1-001", "score": 0.47276705503463745, "sibling_score": 0.47276705503463745, "answer_score": null, "sibling_qid": "KOC-2022-09-0099-Q028", "sibling_text": "safematic", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Safematic steering gear system — how it is asked in the oral, and what SOLAS actually requires", "cross_family": true }, { "answer_id": "SHAFT-GEN-005", "score": 0.4722778797149658, "sibling_score": 0.4722778797149658, "answer_score": null, "sibling_qid": "KOC-2022-12-0121-Q007", "sibling_text": "sg safety", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Safeties provided for a shaft generator", "cross_family": true } ] }, { "qid": "KOC-2021-07-0007-Q004", "text": "Chapters under function 3", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOC-2021-07-0007", "tray": "new", "candidates": [ { "answer_id": "SEEMP-123-B-001", "score": 0.579352855682373, "sibling_score": 0.579352855682373, "answer_score": null, "sibling_qid": "KOC-2026-03-0880-Q002", "sibling_text": "function 3 contents", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SEEMP Part III — the ship's operational carbon-intensity (CII) plan", "cross_family": true }, { "answer_id": "LSA-CODE-001", "score": 0.5601456165313721, "sibling_score": 0.5601456165313721, "answer_score": null, "sibling_qid": "KOL-2016-11-0027-Q010", "sibling_text": "solas ch 3", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "SOLAS Chapter III and the LSA Code — what each is, and how they link", "cross_family": true }, { "answer_id": "STCW-MAN-002", "score": 0.521521806716919, "sibling_score": 0.521521806716919, "answer_score": null, "sibling_qid": "KOC-2021-06-0003-Q002", "sibling_text": "stcw chapters level function", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Name the chapters of the STCW Convention and explain them.", "cross_family": true } ] }, { "qid": "KOC-2021-07-0007-Q008", "text": "Purpose of freeboard", "family": "SOLAS", "subtopic": "Load Line Convention", "tid": "KOC-2021-07-0007", "tray": "review", "candidates": [ { "answer_id": "RES-BUOY-005", "score": 0.6757911443710327, "sibling_score": 0.6757911443710327, "answer_score": 0.4903491973876953, "sibling_qid": "KOC-2022-02-0062-Q004", "sibling_text": "freeboard purpose reserve buoyancy pupose", "sibling_family": "", "via": "sibling", "answer_title": "Freeboard and reserve buoyancy — the relationship", "cross_family": false }, { "answer_id": "LLC-P05-001", "score": 0.6412245035171509, "sibling_score": 0.6412245035171509, "answer_score": 0.48619748950004577, "sibling_qid": "CHE-2026-05-0560-Q006", "sibling_text": "freeboard", "sibling_family": "Ship Construction", "via": "sibling", "answer_title": "Freeboard, deck line, Plimsoll mark, assignment and scantling draft", "cross_family": true }, { "answer_id": "LLST-AB-003", "score": 0.6333393454551697, "sibling_score": 0.6333393454551697, "answer_score": null, "sibling_qid": "KOL-2020-02-0396-Q002", "sibling_text": "freeboard why more in bulk", "sibling_family": "", "via": "sibling", "answer_title": "Why tankers carry less freeboard than bulk carriers and other dry-cargo ships", "cross_family": false } ] }, { "qid": "KOC-2021-07-0007-Q013", "text": "Who sign the ORB", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "KOC-2021-07-0007", "tray": "new", "candidates": [ { "answer_id": "ORB-IOPP-OWS-002", "score": 0.4781574308872223, "sibling_score": 0.4781574308872223, "answer_score": null, "sibling_qid": "CHE-2026-05-0543-Q003", "sibling_text": "orb in details", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "The Oil Record Book Part I — purpose, the letter codes, and how entries are made", "cross_family": false }, { "answer_id": "OWS-ORB-006", "score": 0.45349785685539246, "sibling_score": 0.45349785685539246, "answer_score": null, "sibling_qid": "MUM-2025-09-0447-Q007", "sibling_text": "orb entries", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "6. Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": false }, { "answer_id": "OWS-15PPM-007", "score": 0.3487699031829834, "sibling_score": 0.3487699031829834, "answer_score": null, "sibling_qid": "MUM-2022-08-0034-Q004", "sibling_text": "certificates for ows", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOC-2021-07-0007-Q015", "text": "Why ORB is onboard ship?", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "KOC-2021-07-0007", "tray": "new", "candidates": [ { "answer_id": "ORB-IOPP-OWS-002", "score": 0.5102387070655823, "sibling_score": 0.5102387070655823, "answer_score": null, "sibling_qid": "CHE-2026-05-0543-Q003", "sibling_text": "orb in details", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "The Oil Record Book Part I — purpose, the letter codes, and how entries are made", "cross_family": false }, { "answer_id": "OILPOL-OWS-006", "score": 0.48335495591163635, "sibling_score": 0.48335495591163635, "answer_score": null, "sibling_qid": "KOL-2024-12-0900-Q007", "sibling_text": "skd 1 what is the requirement for having ows onboard ship", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Requirement to carry an OWS onboard — what does the rule say?", "cross_family": false }, { "answer_id": "OWS-ORB-006", "score": 0.4738160967826843, "sibling_score": 0.4738160967826843, "answer_score": null, "sibling_qid": "MUM-2025-09-0447-Q007", "sibling_text": "orb entries", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "6. Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": false } ] }, { "qid": "KOC-2021-07-0007-Q024", "text": "What is the regulation for surveys and audit", "family": "Surveys - Statutory", "subtopic": "Audit vs Survey", "tid": "KOC-2021-07-0007", "tray": "new", "candidates": [ { "answer_id": "AUDIT-IE-004", "score": 0.5726243853569031, "sibling_score": 0.5726243853569031, "answer_score": 0.38608730137348174, "sibling_qid": "KOC-2025-02-0544-Q003", "sibling_text": "audits and surveys", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Difference between audit and survey", "cross_family": false }, { "answer_id": "SURV-GEN-001", "score": 0.5066788792610168, "sibling_score": 0.5066788792610168, "answer_score": 0.3718802690505981, "sibling_qid": "KOC-2026-01-0782-Q005", "sibling_text": "what are the statutory surveys", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What statutory surveys are carried out on board?", "cross_family": false }, { "answer_id": "SVY-SCOPE-003", "score": 0.5001554489135742, "sibling_score": 0.5001554489135742, "answer_score": null, "sibling_qid": "MUM-2023-01-2161-Q007", "sibling_text": "periodical survey and annual survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the difference between a periodical survey and an annual survey?", "cross_family": false } ] }, { "qid": "KOC-2021-07-0007-Q025", "text": "Surveys and audit comes under what ??", "family": "Surveys - Statutory", "subtopic": "Audit vs Survey", "tid": "KOC-2021-07-0007", "tray": "review", "candidates": [ { "answer_id": "AUDIT-IE-004", "score": 0.6835210919380188, "sibling_score": 0.6835210919380188, "answer_score": 0.4163895860314369, "sibling_qid": "KOC-2025-02-0544-Q003", "sibling_text": "audits and surveys", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Difference between audit and survey", "cross_family": false }, { "answer_id": "SURV-GEN-002", "score": 0.5668507218360901, "sibling_score": 0.5668507218360901, "answer_score": null, "sibling_qid": "KOL-2023-10-4028-Q010", "sibling_text": "classification survey and statutory survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Statutory survey versus classification survey", "cross_family": false }, { "answer_id": "SVY-SCOPE-003", "score": 0.5585983395576477, "sibling_score": 0.5585983395576477, "answer_score": null, "sibling_qid": "MUM-2023-01-2161-Q007", "sibling_text": "periodical survey and annual survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the difference between a periodical survey and an annual survey?", "cross_family": false } ] }, { "qid": "KOC-2021-07-0009-Q002", "text": "VOC ballast water management system( it is ig giving in ballast tank)", "family": "Other Conventions", "subtopic": "Ballast Water Convention / BWM / BWMS", "tid": "KOC-2021-07-0009", "tray": "review", "candidates": [ { "answer_id": "BWM-P01-001", "score": 0.6595430970191956, "sibling_score": 0.6595430970191956, "answer_score": null, "sibling_qid": "MUM-2026-09-3998-Q010", "sibling_text": "ballast water management system onboard latest requirement", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "BWMS-C-001", "score": 0.6495185494422913, "sibling_score": 0.6495185494422913, "answer_score": 0.49306184649467466, "sibling_qid": "KOL-2018-06-0189-Q007", "sibling_text": "bwm purpose ballast water management systems", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Ballast water management vs treatment — and why a BWTS", "cross_family": false }, { "answer_id": "BWMS-C-002", "score": 0.6477083563804626, "sibling_score": 0.6477083563804626, "answer_score": null, "sibling_qid": "KOL-2025-09-1085-Q004", "sibling_text": "ballast water management plant", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Types of BWTS and their working principles", "cross_family": false } ] }, { "qid": "KOC-2021-07-0009-Q005", "text": "what is quarter deck( I think in vlcc you have a sunken given on the poop deck )", "family": "SOLAS", "subtopic": "Decks / Superstructure", "tid": "KOC-2021-07-0009", "tray": "new", "candidates": [ { "answer_id": "KGF-A-004", "score": 0.5301299691200256, "sibling_score": 0.5301299691200256, "answer_score": null, "sibling_qid": "KOC-2025-03-0579-Q002", "sibling_text": "engine room cross section upto one deck", "sibling_family": "", "via": "sibling", "answer_title": "Hull / midship cross-section: draw & identify", "cross_family": false }, { "answer_id": "TONN-001", "score": 0.5291545391082764, "sibling_score": 0.5291545391082764, "answer_score": null, "sibling_qid": "CHE-2026-04-0166-Q002S2", "sibling_text": "tonnage deck", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Gross Tonnage (GT / GRT) — basis, units, significance", "cross_family": true }, { "answer_id": "CONT-FIRE-FINAL-1-005", "score": 0.5285003185272217, "sibling_score": 0.5285003185272217, "answer_score": null, "sibling_qid": "MUM-2024-09-0210-Q006", "sibling_text": "tiers of container on deck", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Container ship stability and on-deck tier loading", "cross_family": true } ] }, { "qid": "KOC-2021-07-0009-Q007", "text": "primary bilge tank diagram", "family": "Bilge & Ballast Systems", "subtopic": "Primary Bilge Tank", "tid": "KOC-2021-07-0009", "tray": "review", "candidates": [ { "answer_id": "KGF-A-001", "score": 0.6736467480659485, "sibling_score": 0.6736467480659485, "answer_score": null, "sibling_qid": "KOC-2024-08-0390-Q006", "sibling_text": "engine room forward to aft top view of all tanks including bilge well cofferdam", "sibling_family": "", "via": "sibling", "answer_title": "Construction terminology & structural member identification", "cross_family": false }, { "answer_id": "VENT-HD-002", "score": 0.6674221754074097, "sibling_score": 0.6674221754074097, "answer_score": 0.49296072125434875, "sibling_qid": "KOC-2025-12-0755-Q003", "sibling_text": "ballast tank vent diagram", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Ballast tank vent head (float + screen) — draw and explain", "cross_family": true }, { "answer_id": "SHELL-PLT-B-001", "score": 0.6590608358383179, "sibling_score": 0.6590608358383179, "answer_score": null, "sibling_qid": "MUM-2026-04-2958-Q002", "sibling_text": "show bilge keel shear strake duct keel double bottom tank cross section", "sibling_family": "", "via": "sibling", "answer_title": "Sheer strake — location, why strengthened, deck-edge / gunwale connection", "cross_family": false } ] }, { "qid": "KOC-2021-07-0010-Q002", "text": "Primary Bilge Tank", "family": "Bilge & Ballast Systems", "subtopic": "Primary Bilge Tank", "tid": "KOC-2021-07-0010", "tray": "new", "candidates": [ { "answer_id": "ESE-P02-007", "score": 0.6363447904586792, "sibling_score": 0.6363447904586792, "answer_score": null, "sibling_qid": "MUM-2024-08-0193-Q005", "sibling_text": "bilge tank cleaning procedure", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "ESE-P02-07. Bilge cleaning and compartment-entry precautions", "cross_family": true }, { "answer_id": "PCD-P04-02", "score": 0.6136718988418579, "sibling_score": 0.6136718988418579, "answer_score": null, "sibling_qid": "MUM-2026-03-2642-Q032", "sibling_text": "what will u use first emergency bilge suction or direct bilge suction", "sibling_family": "Bilge & Ballast Systems", "via": "sibling", "answer_title": "02. Emergency bilge suction — the bilge injection valve, testing and SOLAS requirements", "cross_family": false }, { "answer_id": "OWS-15PPM-002", "score": 0.613481342792511, "sibling_score": 0.613481342792511, "answer_score": null, "sibling_qid": "CHE-2025-08-0051-Q006", "sibling_text": "annex 1 engine room bilges discharge some more", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": true } ] }, { "qid": "KOC-2021-07-0010-Q003", "text": "IACS", "family": "Surveys - Statutory", "subtopic": "IACS / Classification Society", "tid": "KOC-2021-07-0010", "tray": "review", "candidates": [ { "answer_id": "IACS-324-001", "score": 0.8027838468551636, "sibling_score": 0.8027838468551636, "answer_score": 0.42117872238159176, "sibling_qid": "KOC-2025-02-0543-Q001", "sibling_text": "iacs", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "1. 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Annex I (Oil)", "subtopic": "Double Hull / Segregated Ballast", "tid": "KOC-2021-07-0011", "tray": "review", "candidates": [ { "answer_id": "STAB-D-001", "score": 0.7191864848136902, "sibling_score": 0.7191864848136902, "answer_score": null, "sibling_qid": "KOC-2023-11-0247-Q010", "sibling_text": "double hull ships stability increase or decrease wants to hear decrease", "sibling_family": "", "via": "sibling", "answer_title": "General Ship Stability - How I Open Any Stability Question", "cross_family": false }, { "answer_id": "COT-08", "score": 0.6552542448043823, "sibling_score": 0.6552542448043823, "answer_score": null, "sibling_qid": "KOC-2026-02-0810-Q002", "sibling_text": "double hull tanker stability vs single hull tanker", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Single-hull versus double-hull tanker requirements", "cross_family": true }, { "answer_id": "DB-TORBOX-B-002", "score": 0.625638484954834, "sibling_score": 0.625638484954834, "answer_score": null, "sibling_qid": "CHE-2025-08-0019-Q017", "sibling_text": "double bottom and double hull requirements", "sibling_family": "", "via": "sibling", "answer_title": "Double-bottom tanks — safeties, requirements and regulations", "cross_family": false } ] }, { "qid": "KOC-2021-07-0011-Q013", "text": "mlc certification procedure", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOC-2021-07-0011", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-006", "score": 0.6791587471961975, "sibling_score": 0.6791587471961975, "answer_score": 0.3658559963107109, "sibling_qid": "MUM-2026-06-3656-Q002", "sibling_text": "certificates under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false }, { "answer_id": "ISM-SMC-B-001", "score": 0.49120044708251953, "sibling_score": 0.49120044708251953, "answer_score": null, "sibling_qid": "KOC-2024-01-0289-Q002", "sibling_text": "procedure to get ism certificates both doc and smc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "SMC — purpose, contents, issue and validity", "cross_family": true }, { "answer_id": "MLC-WRH-B-008", "score": 0.47224533557891846, "sibling_score": 0.47224533557891846, "answer_score": null, "sibling_qid": "KOC-2024-04-0331-Q002", "sibling_text": "mlc medical fitness certificate validity and cross question on it", "sibling_family": "MLC", "via": "sibling", "answer_title": "Medical certificate — requirements, validity, and joining on an expired one", "cross_family": false } ] }, { "qid": "KOC-2021-07-0013-Q001", "text": "Subjects in fn 3", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOC-2021-07-0013", "tray": "new", "candidates": [ { "answer_id": "SEEMP-123-B-001", "score": 0.4800577461719513, "sibling_score": 0.4800577461719513, "answer_score": null, "sibling_qid": "KOC-2026-03-0880-Q002", "sibling_text": "function 3 contents", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SEEMP Part III — the ship's operational carbon-intensity (CII) plan", "cross_family": true }, { "answer_id": "IMO-CODES-P03-001", "score": 0.45291656255722046, "sibling_score": 0.45291656255722046, "answer_score": null, "sibling_qid": "KOC-2026-03-0886-Q002", "sibling_text": "what is function 3 subjects involved he want naval architecture and ship construction first", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Important IMO conventions and codes: parent links", "cross_family": true }, { "answer_id": "UNL-330-001", "score": 0.4257168173789978, "sibling_score": 0.4257168173789978, "answer_score": null, "sibling_qid": "KOL-2022-04-1673-Q005", "sibling_text": "3 function of unloder x que", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "What is the function of the main air compressor unloader?", "cross_family": true } ] }, { "qid": "KOC-2021-07-0013-Q004", "text": "bulbous bow ? Why now some ships have it and some don't ? What regulation?", "family": "", "subtopic": "Bulbous Bow", "tid": "KOC-2021-07-0013", "tray": "new", "candidates": [ { "answer_id": "PPS-230-006", "score": 0.5873780250549316, "sibling_score": 0.5873780250549316, "answer_score": null, "sibling_qid": "MUM-2026-02-0782-Q011", "sibling_text": "bulbous bow how it is connected to ship shape of bow", "sibling_family": "", "via": "sibling", "answer_title": "Fore-end / fore-peak structure: draw and describe", "cross_family": false }, { "answer_id": "BC-IMSBC-002", "score": 0.5680994391441345, "sibling_score": 0.5680994391441345, "answer_score": null, "sibling_qid": "MUM-2022-08-0040-Q002", "sibling_text": "since i sailed on container and bulk carrier he started with what s the design difference the bulbous bow of container and bulk carrier and why it is so", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "2. Bulk carrier construction and structural design", "cross_family": false }, { "answer_id": "BHD-TYPE-B-001", "score": 0.5639667510986328, "sibling_score": 0.5639667510986328, "answer_score": null, "sibling_qid": "MUM-2026-02-0763-Q002S6", "sibling_text": "new regulation to collision bulkhead", "sibling_family": "", "via": "sibling", "answer_title": "Collision bulkhead — definition, location and SOLAS regulations", "cross_family": false } ] }, { "qid": "KOC-2021-07-0013-Q010", "text": "latest amendment of mlc", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOC-2021-07-0013", "tray": "new", "candidates": [ { "answer_id": "COT-P02-10", "score": 0.5544276237487793, "sibling_score": 0.5544276237487793, "answer_score": null, "sibling_qid": "MUM-2026-06-3653-Q004", "sibling_text": "seemp latest amendment", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "State and explain the latest statutory amendments affecting tanker inert-gas systems, including applicability and practical changes on board.", "cross_family": true }, { "answer_id": "BC-IMSBC-005", "score": 0.5078781247138977, "sibling_score": 0.5078781247138977, "answer_score": 0.35070126950740815, "sibling_qid": "KOL-2025-08-1023-Q004", "sibling_text": "imsbc latest amendment", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "5. Latest IMSBC Code amendments", "cross_family": true }, { "answer_id": "IMO-CODES-P02-001", "score": 0.49919748306274414, "sibling_score": 0.49919748306274414, "answer_score": null, "sibling_qid": "KOC-2025-01-0515-Q002", "sibling_text": "msc108 new ammendments", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "IMO instruments: convention, code, protocol, amendment, regulation, resolution and rule", "cross_family": true } ] }, { "qid": "KOC-2021-07-0014-Q001", "text": "Types of ship sailed", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2021-07-0014", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8295608162879944, "sibling_score": 0.8295608162879944, "answer_score": null, "sibling_qid": "CHE-2026-09-3938-Q001", "sibling_text": "types of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.79740971326828, "sibling_score": 0.79740971326828, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7830531001091003, "sibling_score": 0.7830531001091003, "answer_score": null, "sibling_qid": "CHE-2026-03-0253-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "KOC-2021-07-0014-Q004", "text": "Marpol annex", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "Marpol Annex Certificates", "tid": "KOC-2021-07-0014", "tray": "review", "candidates": [ { "answer_id": "MARPOL-OV-003", "score": 0.788339376449585, "sibling_score": 0.788339376449585, "answer_score": 0.5677775412797927, "sibling_qid": "MUM-2026-09-3916-Q003", "sibling_text": "marpol annexes all", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "General overview of MARPOL and all annexes", "cross_family": true }, { "answer_id": "AVI-SCOPE-002", "score": 0.773936927318573, "sibling_score": 0.773936927318573, "answer_score": null, "sibling_qid": "MUM-2023-10-0139-Q006", "sibling_text": "annex 6 marpol", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Explain the purpose and scope of MARPOL Annex VI.", "cross_family": false }, { "answer_id": "IOPP-191-005", "score": 0.7726213335990906, "sibling_score": 0.7726213335990906, "answer_score": null, "sibling_qid": "MUM-2026-06-3575-Q001", "sibling_text": "marpol annex 1", "sibling_family": "MARPOL - 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Load line survey preparation: readiness, weather-tight checks and attendance", "cross_family": false } ] }, { "qid": "KOC-2021-07-0015-Q011", "text": "how will you carry out hot work in bunker tank ?", "family": "Workshop & Welding", "subtopic": "Hot Work", "tid": "KOC-2021-07-0015", "tray": "review", "candidates": [ { "answer_id": "WBS-C-003", "score": 0.6843504309654236, "sibling_score": 0.6843504309654236, "answer_score": 0.4462938547134399, "sibling_qid": "KOC-2025-01-1476-Q002", "sibling_text": "how to carry out hot work near f o tank not accepting anything", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Shipboard hot work — the permit, the designated area, and work near fuel tanks", "cross_family": false }, { "answer_id": "BTKS-573-001", "score": 0.6366384029388428, "sibling_score": 0.6366384029388428, "answer_score": 0.5121327191591263, "sibling_qid": "KOC-2024-08-1857-Q007", "sibling_text": "how you prepare bunker tank for inspection and hotwork", "sibling_family": "MARPOL - 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safety, security and audit", "cross_family": true } ] }, { "qid": "KOC-2021-07-0016-Q005", "text": "Mlc , what it is, what's the difference between mlc convention and the convention before that, dmlc explain", "family": "MLC", "subtopic": "MLC / DMLC / Work-Rest", "tid": "KOC-2021-07-0016", "tray": "new", "candidates": [ { "answer_id": "CLC-CIV-B-003", "score": 0.48179706931114197, "sibling_score": 0.48179706931114197, "answer_score": null, "sibling_qid": "KOC-2025-04-2062-Q002", "sibling_text": "llmc convention", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "LLMC: purpose, scope and limitation of maritime claims", "cross_family": true }, { "answer_id": "MLC-WRH-B-001", "score": 0.47381463646888733, "sibling_score": 0.47381463646888733, "answer_score": null, "sibling_qid": "KOC-2026-05-2135-Q011", "sibling_text": "mlc titles explain title 1 explain dmlc part 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "MLC-WRH-B-006", "score": 0.45347729325294495, "sibling_score": 0.45347729325294495, "answer_score": null, "sibling_qid": "MUM-2026-07-3680-Q005", "sibling_text": "what is mlc certificate under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false } ] }, { "qid": "KOC-2021-07-0016-Q007", "text": "Marpol annex 4,5 discharge criteria, grb contents, codes, new codes, grb part 2", "family": "MARPOL - Annex V (Garbage)", "subtopic": "Garbage Record / GRB", "tid": "KOC-2021-07-0016", "tray": "review", "candidates": [ { "answer_id": "GARB-261-002", "score": 0.6624347567558289, "sibling_score": 0.6624347567558289, "answer_score": null, "sibling_qid": "KOL-2017-01-0047-Q013", "sibling_text": "marpol annex 5 discharge criteria", "sibling_family": "MARPOL - Annex V (Garbage)", "via": "sibling", "answer_title": "Discharge criteria — inside vs outside special areas", "cross_family": false }, { "answer_id": "GARB-261-001", "score": 0.6245282888412476, "sibling_score": 0.6245282888412476, "answer_score": 0.4819636046886444, "sibling_qid": "KOL-2016-08-0006-Q002", "sibling_text": "annex 5 in details what is garbage nd discharge criteria", "sibling_family": "MARPOL - Annex V (Garbage)", "via": "sibling", "answer_title": "MARPOL Annex V — scope, definitions and the garbage categories", "cross_family": false }, { "answer_id": "AII-DISCH-002", "score": 0.6166858673095703, "sibling_score": 0.6166858673095703, "answer_score": null, "sibling_qid": "KOC-2026-02-0804-Q005", "sibling_text": "marpol annex 2 and category x y z discharge criteria", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Explain the Category X, Y and Z chemical cargo residue discharge criteria", "cross_family": true } ] }, { "qid": "KOC-2021-07-0016-Q009", "text": "How superstructure is attached to hull", "family": "SOLAS", "subtopic": "Decks / Superstructure", "tid": "KOC-2021-07-0016", "tray": "new", "candidates": [ { "answer_id": "SHELL-PLT-B-001", "score": 0.5965112447738647, "sibling_score": 0.5965112447738647, "answer_score": null, "sibling_qid": "KOL-2019-12-0371-Q002", "sibling_text": "how deck plating is attached to shell", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Sheer strake — location, why strengthened, deck-edge / gunwale connection", "cross_family": false }, { "answer_id": "CHK-RM-001", "score": 0.5921139121055603, "sibling_score": 0.5921139121055603, "answer_score": null, "sibling_qid": "KOL-2018-10-1428-Q003", "sibling_text": "how bedplate is connected to hull", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What are chocks? Function, types, where fitted and how placed — which have the biggest area, and how does the bedplate connect to the hull?", "cross_family": true }, { "answer_id": "SAC-ANODE-001", "score": 0.5805359482765198, "sibling_score": 0.5805359482765198, "answer_score": null, "sibling_qid": "MUM-2026-06-3468-Q004", "sibling_text": "how anodes r attached to hull", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "How is a sacrificial anode electrically connected to the hull?", "cross_family": false } ] }, { "qid": "KOC-2021-07-0017-Q002", "text": "Subjects in fn3", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOC-2021-07-0017", "tray": "new", "candidates": [ { "answer_id": "IMO-CODES-P03-001", "score": 0.4281122088432312, "sibling_score": 0.4281122088432312, "answer_score": null, "sibling_qid": "KOC-2026-03-0886-Q002", "sibling_text": "what is function 3 subjects involved he want naval architecture and ship construction first", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Important IMO conventions and codes: parent links", "cross_family": true }, { "answer_id": "SEEMP-123-B-001", "score": 0.4259568452835083, "sibling_score": 0.4259568452835083, "answer_score": null, "sibling_qid": "KOC-2026-03-0880-Q002", "sibling_text": "function 3 contents", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SEEMP Part III — the ship's operational carbon-intensity (CII) plan", "cross_family": true }, { "answer_id": "IMO-CODES-P03-002", "score": 0.3923410177230835, "sibling_score": 0.3923410177230835, "answer_score": null, "sibling_qid": "MUM-2026-03-0815-Q003", "sibling_text": "which function", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": false } ] }, { "qid": "KOC-2021-07-0018-Q001", "text": "four subject of fn 3? ANSWER .ship safety, environment protection, naval architecture, personal care", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2021-07-0018", "tray": "new", "candidates": [ { "answer_id": "IGC-GAS-011", "score": 0.6285797953605652, "sibling_score": 0.6285797953605652, "answer_score": null, "sibling_qid": "MUM-2023-07-2738-Q002", "sibling_text": "safety and all in fgss and hazardous area of your ship 2 type of engine room 3 omd alarm what will be your action or yaad nahi aa raha hai mep", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Gas systems and hazardous-area safety (FGSS, piping, gas detection)", "cross_family": true }, { "answer_id": "ISPS-SSP-P01-001", "score": 0.6159859895706177, "sibling_score": 0.6159859895706177, "answer_score": null, "sibling_qid": "KOC-2023-07-0194-Q007", "sibling_text": "3 ship security plan explain", "sibling_family": "ISPS", "via": "sibling", "answer_title": "Ship Security Plan (SSP): purpose, scope & contents", "cross_family": true }, { "answer_id": "IMO-CODES-P03-001", "score": 0.6050735116004944, "sibling_score": 0.6050735116004944, "answer_score": null, "sibling_qid": "KOC-2026-03-0886-Q002", "sibling_text": "what is function 3 subjects involved he want naval architecture and ship construction first", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Important IMO conventions and codes: parent links", "cross_family": true } ] }, { "qid": "KOC-2021-07-0020-Q006", "text": "bilge primary tank diagram and explanation", "family": "Bilge & Ballast Systems", "subtopic": "Primary Bilge Tank", "tid": "KOC-2021-07-0020", "tray": "new", "candidates": [ { "answer_id": "KGF-A-001", "score": 0.6177551746368408, "sibling_score": 0.6177551746368408, "answer_score": null, "sibling_qid": "KOC-2024-08-0390-Q006", "sibling_text": "engine room forward to aft top view of all tanks including bilge well cofferdam", "sibling_family": "", "via": "sibling", "answer_title": "Construction terminology & structural member identification", "cross_family": false }, { "answer_id": "VENT-HD-002", "score": 0.6038265824317932, "sibling_score": 0.6038265824317932, "answer_score": 0.4839574337005615, "sibling_qid": "KOC-2025-12-0755-Q003", "sibling_text": "ballast tank vent diagram", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Ballast tank vent head (float + screen) — draw and explain", "cross_family": true }, { "answer_id": "SHELL-PLT-B-001", "score": 0.592781662940979, "sibling_score": 0.592781662940979, "answer_score": null, "sibling_qid": "MUM-2026-04-2958-Q002", "sibling_text": "show bilge keel shear strake duct keel double bottom tank cross section", "sibling_family": "", "via": "sibling", "answer_title": "Sheer strake — location, why strengthened, deck-edge / gunwale connection", "cross_family": false } ] }, { "qid": "KOC-2021-07-0920-Q005", "text": "compressor frosting, which equipment malfunction.. he ddnt accept TEV", "family": "Refrigeration & AC", "subtopic": "Refrigeration Faults / Checks", "tid": "KOC-2021-07-0920", "tray": "review", "candidates": [ { "answer_id": "TEV-TXV-005", "score": 0.6839234232902527, "sibling_score": 0.6839234232902527, "answer_score": null, "sibling_qid": "KOL-2017-05-3052-Q004", "sibling_text": "tev icing on outer surface reasons whats the level of the refrigerant in receiver while running", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Throttling process and superheat control across the TEV", "cross_family": false }, { "answer_id": "TEV-TXV-002", "score": 0.6781241297721863, "sibling_score": 0.6781241297721863, "answer_score": null, "sibling_qid": "KOC-2025-04-1037-Q022", "sibling_text": "refrigeration system tev not working want to hear about filter and orifice", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "TEV / TXV — purpose, construction, location and working", "cross_family": false }, { "answer_id": "REEF-COMP-004", "score": 0.6708843111991882, "sibling_score": 0.6708843111991882, "answer_score": null, "sibling_qid": "KOL-2024-10-3715-Q001", "sibling_text": "reefer compressor lo charging i said i have read about it but i am not able to recall at the moment", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Charging, replenishing and draining compressor lube oil — including with no charging pump", "cross_family": false } ] }, { "qid": "KOC-2021-07-0920-Q009", "text": "egb safety valve setting, give importance to safety aspect", "family": "Boilers - 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Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false } ] }, { "qid": "KOC-2021-07-0943-Q001", "text": "Type of engine", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOC-2021-07-0943", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.8008493185043335, "sibling_score": 0.8008493185043335, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.7932907342910767, "sibling_score": 0.7932907342910767, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-001", "score": 0.4524273335933685, "sibling_score": null, "answer_score": 0.4524273335933685, "sibling_qid": "", "sibling_text": "1 turbocharger type main engine vs generator engine compressor is centrifugal in both cases only the turbine type differs large slow speed main engine axial flow turbine single stage constant pressure system", "sibling_family": "", "via": "answer_title", "answer_title": "1. Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "KOC-2021-07-0943-Q002", "text": "What measures are taken onboard while changing from HFO to VLSFO", "family": "MARPOL - General & Compliance", "subtopic": "Bunker Density Issue", "tid": "KOC-2021-07-0943", "tray": "new", "candidates": [ { "answer_id": "FHV-004", "score": 0.46210402250289917, "sibling_score": 0.46210402250289917, "answer_score": 0.4163737028837204, "sibling_qid": "KOL-2019-07-3264-Q005", "sibling_text": "change over procedure from hfo to lsmgo paying attention on high tbn to low tbn cylinder oil and related cross question", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "04. HFO / DO / LSMGO changeover and its effects", "cross_family": true }, { "answer_id": "FQCC-583-B-009", "score": 0.3973609209060669, "sibling_score": 0.3973609209060669, "answer_score": null, "sibling_qid": "KOC-2021-07-0943-Q004", "sibling_text": "any additional tests being included along with fuel oil analysis after changing over to vlsfo", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Sulphur — effects of high sulphur, the ULSFO/VLSFO caps, and how the refinery takes it out", "cross_family": true }, { "answer_id": "SOX-LIMIT-002", "score": 0.38313525915145874, "sibling_score": 0.38313525915145874, "answer_score": null, "sibling_qid": "KOL-2018-09-0217-Q008", "sibling_text": "marpol annex 6 special area changeover procedure from high sulphur heavy oil to low sulphur gas oil", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "ECA / SECA limits, areas, and fuel changeover", "cross_family": true } ] }, { "qid": "KOC-2021-07-1136-Q007", "text": "2 generators paralelling one of them had increase in current reasons???( He told me by adjusting potentiometer you have to increase the voltage to 450v instead of 440 v in these conditions)", "family": "Electrical - Generator & Alternator", "subtopic": "Load Sharing Imbalance", "tid": "KOC-2021-07-1136", "tray": "review", "candidates": [ { "answer_id": "LS-IMB-A-001", "score": 0.7389529347419739, "sibling_score": 0.7389529347419739, "answer_score": 0.5495629400014878, "sibling_qid": "KOC-2024-05-1356-Q005", "sibling_text": "what is the reason when 2 generator in parallel one generator current is low and other is high i said p f to be adjusted he asked the procedure to adjust", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Two paralleled generators sharing unequal load — cause and correction", "cross_family": false }, { "answer_id": "GEN-LSI-B-001", "score": 0.7242704033851624, "sibling_score": 0.7242704033851624, "answer_score": 0.5275145977735519, "sibling_qid": "KOL-2025-12-2927-Q002", "sibling_text": "two generators are running in parallel voltage same current same but kw different reason", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01. Two alternators in parallel — same kW but different current and power factor: cause and correction", "cross_family": false }, { "answer_id": "GEN-LSI-B-002", "score": 0.7183266282081604, "sibling_score": 0.7183266282081604, "answer_score": null, "sibling_qid": "KOC-2024-07-0369-Q009", "sibling_text": "one of the two parallel running generator have higher current compare to other why and how to rectify", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "02. Load, current or kW sharing fluctuating in parallel operation — actions", "cross_family": false } ] }, { "qid": "KOC-2021-07-1137-Q002", "text": "Steering gear motor safeties", "family": "Electrical - Motors & Starters", "subtopic": "STEERING GEAR MOTOR-ELECTRICAL", "tid": "KOC-2021-07-1137", "tray": "review", "candidates": [ { "answer_id": "SGM-ELEC-001", "score": 0.8191116452217102, "sibling_score": 0.8191116452217102, "answer_score": 0.5877206444740295, "sibling_qid": "MUM-2025-06-1536-Q001", "sibling_text": "special safeties for steering gear motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What are the safeties, alarms and trips on the steering gear motor as per SOLAS — and how do you activate the safematic?", "cross_family": false }, { "answer_id": "SGM-ELEC-002", "score": 0.8143042922019958, "sibling_score": 0.8143042922019958, "answer_score": null, "sibling_qid": "MUM-2026-05-3190-Q008", "sibling_text": "steering gear motor safeties", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What type of motor is the steering gear motor, how does it differ from other engine-room motors, and how do you order one?", "cross_family": false }, { "answer_id": "ELEC-SAFE-006", "score": 0.6260662615299225, "sibling_score": null, "answer_score": 0.6260662615299225, "sibling_qid": "", "sibling_text": "steering gear electrical safety and motor insulation essential service duplicated supplies often one from the emergency switchboard motors have short circuit protection and an overload alarm no normal overload trip that would stop steering", "sibling_family": "", "via": "answer_title", "answer_title": "Steering gear electrical safety and motor insulation", "cross_family": false } ] }, { "qid": "KOC-2021-07-1140-Q006", "text": "Zener barrier", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOC-2021-07-1140", "tray": "review", "candidates": [ { "answer_id": "EPC-P02-03", "score": 0.6889215707778931, "sibling_score": 0.6889215707778931, "answer_score": 0.43741246461868283, "sibling_qid": "CHE-2026-02-0333-Q002", "sibling_text": "zener barrier", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Where is a zener diode used on board and why — voltage regulator, AVR, clipper — and explain one application in detail.", "cross_family": false }, { "answer_id": "EPC-P02-01", "score": 0.6884555816650391, "sibling_score": 0.6884555816650391, "answer_score": 0.47221940755844116, "sibling_qid": "MUM-2026-05-3272-Q003", "sibling_text": "zener barrier", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a zener diode? Draw its symbol, explain its working principle, and draw and explain its characteristic curve including the zener (breakdown) voltage.", "cross_family": false }, { "answer_id": "HAZ-EX-B-001", "score": 0.6213006973266602, "sibling_score": 0.6213006973266602, "answer_score": null, "sibling_qid": "CHE-2026-03-0358-Q005", "sibling_text": "zener barrier working in intrinsically safe", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Intrinsically safe (Ex i) equipment — what it is, how it works, where it is used, how you identify it", "cross_family": false } ] }, { "qid": "KOC-2021-07-1140-Q009", "text": "Alarms in pump room motors", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOC-2021-07-1140", "tray": "new", "candidates": [ { "answer_id": "EFP-A-001", "score": 0.5852326154708862, "sibling_score": 0.5852326154708862, "answer_score": null, "sibling_qid": "KOC-2025-05-0590-Q008", "sibling_text": "emergency fire pump regulation motor", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "What does SOLAS / the FSS Code require of an emergency fire pump — location, capacity, suction, power and availability?", "cross_family": false }, { "answer_id": "HSAP-B-006", "score": 0.5795454978942871, "sibling_score": 0.5795454978942871, "answer_score": null, "sibling_qid": "KOL-2018-07-1395-Q002", "sibling_text": "safeties and alarms for the swash plate type pumps in me b", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Axial piston pump — defects, peculiarities, safeties and alarms", "cross_family": false }, { "answer_id": "SGM-ELEC-003", "score": 0.5778816938400269, "sibling_score": 0.5778816938400269, "answer_score": null, "sibling_qid": "MUM-2026-02-0791-Q018", "sibling_text": "why only alarm not trip incase of steeing gear motor overload", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Why does the steering gear motor have only an overload alarm and not an overload trip — and what is the overload trip percentage?", "cross_family": false } ] }, { "qid": "KOC-2021-07-1763-Q001", "text": "Use of bridge gauge? Marking on bridge gauge?", "family": "Gauges & Tools", "subtopic": "Poker Gauge", "tid": "KOC-2021-07-1763", "tray": "new", "candidates": [ { "answer_id": "MN-BRG-C-003", "score": 0.6186320781707764, "sibling_score": 0.6186320781707764, "answer_score": null, "sibling_qid": "KOL-2020-02-3329-Q001", "sibling_text": "bridge gauge", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main bearing clearance and wear-down: measuring and interpreting", "cross_family": true }, { "answer_id": "MICR-002", "score": 0.5052204728126526, "sibling_score": 0.5052204728126526, "answer_score": null, "sibling_qid": "KOL-2018-05-1373-Q012", "sibling_text": "screw gauge zero calibration", "sibling_family": "Gauges & Tools", "via": "sibling", "answer_title": "Zero setting, calibration, error check and trueness", "cross_family": false }, { "answer_id": "BCL-592-001", "score": 0.4960252046585083, "sibling_score": 0.4960252046585083, "answer_score": 0.35551875233650204, "sibling_qid": "KOL-2022-10-3575-Q003", "sibling_text": "how you take clearance of main bearing using bridge gauge what are all the precautions you will take so that your reading should be correct", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you take main bearing clearance with a bridge gauge? What checks and precautions come first, and where must the crankshaft be positioned?", "cross_family": true } ] }, { "qid": "KOC-2021-07-1764-Q005", "text": "AE performance ,exhaust temperature and other parameters are above normal ,what to do step by step", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Decarb / Balancing / High Exhaust Temperature", "tid": "KOC-2021-07-1764", "tray": "review", "candidates": [ { "answer_id": "EGTP-P02-007", "score": 0.7091466784477234, "sibling_score": 0.7091466784477234, "answer_score": null, "sibling_qid": "KOL-2026-05-4196-Q007", "sibling_text": "ae one unit exhaust temp low what is your action", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "High Exhaust Temperature — One Unit vs All Units", "cross_family": false }, { "answer_id": "AE-HOT-BLOW-005", "score": 0.7057110071182251, "sibling_score": 0.7057110071182251, "answer_score": null, "sibling_qid": "KOL-2018-03-1361-Q007", "sibling_text": "ae one unit exhaust temp rising all unit rising why how to confirm nozzle ring is chocked there is no tc rpm monitor", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Auxiliary engine units rising — one versus all, and confirming a choked turbocharger nozzle ring", "cross_family": false }, { "answer_id": "AE-HOT-BLOW-004", "score": 0.7039591670036316, "sibling_score": 0.7039591670036316, "answer_score": null, "sibling_qid": "MUM-2025-12-2879-Q006", "sibling_text": "rating of the ae running at low load but exhaust temp are high reason", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Auxiliary engine at low load but exhaust temperatures high — reasons", "cross_family": false } ] }, { "qid": "KOC-2021-07-1764-Q006", "text": "After desludging purifier,it starts vibrating-reasons", "family": "Purifier & Centrifuges", "subtopic": "Vibration troubleshooting", "tid": "KOC-2021-07-1764", "tray": "review", "candidates": [ { "answer_id": "PURIF-BOWL-P02-002", "score": 0.7289867997169495, "sibling_score": 0.7289867997169495, "answer_score": null, "sibling_qid": "KOL-2022-09-3571-Q003", "sibling_text": "purifier bowl cleaned boxed back as soon as feed is given abnormal vibration is observed reasons rao", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Drive, rated RPM, overload, vibration / wobbling & dynamic balancing — causes and troubleshooting", "cross_family": false }, { "answer_id": "PURIF-BOWL-P02-001", "score": 0.6329678893089294, "sibling_score": 0.6329678893089294, "answer_score": null, "sibling_qid": "MUM-2026-05-3206-Q011", "sibling_text": "purifier not desludging reasons", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Bowl opening, closing & manual desludging — mechanism, manual operation, failure causes", "cross_family": false }, { "answer_id": "PURIF-BOWL-P02-003", "score": 0.6196512579917908, "sibling_score": 0.6196512579917908, "answer_score": null, "sibling_qid": "KOL-2018-08-3166-Q010", "sibling_text": "asked to find from outside no one know outside gone in side told same reason suddenl y paul asked purifier overhauled and started too much vibration reasons wanted to hear bearing housing buffer spring as the cause told him but internal was in no mood to give", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Vertical shaft, bowl height, bearings & load support — checks, adjustment, overhaul, renewal", "cross_family": false } ] }, { "qid": "KOC-2021-08-0021-Q002", "text": "Subjects covered in Fn 3", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOC-2021-08-0021", "tray": "new", "candidates": [ { "answer_id": "SEEMP-123-B-001", "score": 0.486072301864624, "sibling_score": 0.486072301864624, "answer_score": null, "sibling_qid": "KOC-2026-03-0880-Q002", "sibling_text": "function 3 contents", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SEEMP Part III — the ship's operational carbon-intensity (CII) plan", "cross_family": true }, { "answer_id": "IMO-CODES-P03-001", "score": 0.48361122608184814, "sibling_score": 0.48361122608184814, "answer_score": null, "sibling_qid": "KOC-2026-03-0863-Q002", "sibling_text": "what all topics cover under fn 3 and explain the conventions marpol solas mlc stcw", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Important IMO conventions and codes: parent links", "cross_family": true }, { "answer_id": "A6-NSEC-005", "score": 0.44044750928878784, "sibling_score": 0.44044750928878784, "answer_score": null, "sibling_qid": "KOC-2025-06-0603-Q002", "sibling_text": "seems all 3 parts", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP — Part I, II & III", "cross_family": true } ] }, { "qid": "KOC-2021-08-1144-Q001", "text": "What is oscillator", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Electronic Circuits / Filters", "tid": "KOC-2021-08-1144", "tray": "review", "candidates": [ { "answer_id": "TC-A-009", "score": 0.7500838041305542, "sibling_score": 0.7500838041305542, "answer_score": 0.39066065996885296, "sibling_qid": "KOC-2024-02-1332-Q004", "sibling_text": "oscillator explain", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "The LC circuit, resonance and the oscillator", "cross_family": false }, { "answer_id": "VFD-INV-P01-001", "score": 0.5003944039344788, "sibling_score": 0.5003944039344788, "answer_score": null, "sibling_qid": "CHE-2026-03-0353-Q004", "sibling_text": "what is harmonics", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a VFD and what does it do?", "cross_family": false }, { "answer_id": "EPC-P02-06", "score": 0.45496898889541626, "sibling_score": 0.45496898889541626, "answer_score": null, "sibling_qid": "CHE-2025-08-0269-Q005", "sibling_text": "define harmonic filter", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What are harmonics, where does the high voltage / distortion come from, and what is a harmonic filter — define, use and where fitted?", "cross_family": false } ] }, { "qid": "KOC-2021-08-1144-Q004", "text": "Hysteresis loop ( retentivity) Internal: explain your JCW control system ( not cascade not pid)", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Eddy Current Losses", "tid": "KOC-2021-08-1144", "tray": "new", "candidates": [ { "answer_id": "AUC-CTL-05", "score": 0.6310441493988037, "sibling_score": 0.6310441493988037, "answer_score": 0.45662514567375184, "sibling_qid": "MUM-2023-06-2175-Q002", "sibling_text": "control loop hysteresis", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Deadband, hysteresis and alarm latitude", "cross_family": true }, { "answer_id": "CTRL-TL-003", "score": 0.611754298210144, "sibling_score": 0.611754298210144, "answer_score": 0.4904976934194565, "sibling_qid": "MUM-2023-06-2734-Q009", "sibling_text": "control loop valve hysterisis", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Feedback, open/closed loop, offset, hysteresis, P-I-D action", "cross_family": true }, { "answer_id": "CTRL-002", "score": 0.5836533308029175, "sibling_score": 0.5836533308029175, "answer_score": null, "sibling_qid": "KOC-2024-05-0995-Q006", "sibling_text": "cascade control cascade in jcw system", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Cascade applied to main-engine jacket cooling-water temperature", "cross_family": true } ] }, { "qid": "KOC-2021-08-1765-Q001", "text": "What is MROL—Marine repair (Mep function)", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "MEP / IMEP / MIP", "tid": "KOC-2021-08-1765", "tray": "new", "candidates": [ { "answer_id": "MEB-MEC-P03-001", "score": 0.48324334621429443, "sibling_score": 0.48324334621429443, "answer_score": null, "sibling_qid": "KOL-2022-08-3560-Q006", "sibling_text": "type of ship done difference b w meb n mec", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "ME-B vs ME-C — the core difference", "cross_family": false }, { "answer_id": "MSB-ESB-B-003", "score": 0.47761017084121704, "sibling_score": 0.47761017084121704, "answer_score": null, "sibling_qid": "KOC-2025-01-1472-Q013", "sibling_text": "msb maintenance in drydock", "sibling_family": "", "via": "sibling", "answer_title": "MSB/ESB work in drydock & the trips you test", "cross_family": false }, { "answer_id": "IND-CARD-004", "score": 0.4772978723049164, "sibling_score": 0.4772978723049164, "answer_score": null, "sibling_qid": "MUM-2022-09-1022-Q005", "sibling_text": "what is mep significance", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "How are MEP, diagram area and engine power calculated from indicator-card data?", "cross_family": false } ] }, { "qid": "KOC-2021-08-1765-Q004", "text": "Descent dryer( want what all inside dryer and how moisture removed)", "family": "Air Compressor", "subtopic": "MAC / Air Compressor", "tid": "KOC-2021-08-1765", "tray": "new", "candidates": [ { "answer_id": "ICAC-299-004", "score": 0.5380475521087646, "sibling_score": 0.5380475521087646, "answer_score": 0.4869136244058609, "sibling_qid": "KOL-2018-09-3189-Q003", "sibling_text": "air line intercooler and aftercooler purpose and arrangements to remove moisture from compressed air system", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Moisture removal: cooler, separator and drains", "cross_family": false }, { "answer_id": "REEF-CHG-004", "score": 0.5043932795524597, "sibling_score": 0.5043932795524597, "answer_score": null, "sibling_qid": "MUM-2026-03-2651-Q003", "sibling_text": "gas charge from dryer in refer", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "04Where refrigerant is charged, and purging the charging line without releasing refrigerant", "cross_family": true }, { "answer_id": "CFZ-330-001", "score": 0.49507516622543335, "sibling_score": 0.49507516622543335, "answer_score": null, "sibling_qid": "KOL-2026-09-4302-Q006", "sibling_text": "comfort zone relative humidity how to remove it what is happening inside dehumidifier", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Define the comfort zone and state its parameters and ranges", "cross_family": true } ] }, { "qid": "KOC-2021-08-1765-Q009", "text": "How Rocker arm is lubricated, from where LO is coming", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Main Bearing", "tid": "KOC-2021-08-1765", "tray": "new", "candidates": [ { "answer_id": "CXH-BRG-FINAL-1-004", "score": 0.6038500666618347, "sibling_score": 0.6038500666618347, "answer_score": 0.47732045650482174, "sibling_qid": "KOL-2017-07-1309-Q003", "sibling_text": "main engine crosshead lubrication", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead lubrication: how oil reaches the crosshead", "cross_family": false }, { "answer_id": "BEB-A-002", "score": 0.598741352558136, "sibling_score": 0.598741352558136, "answer_score": 0.46811329722404477, "sibling_qid": "MUM-2024-03-1079-Q014", "sibling_text": "crank pin bearing how lubricated", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How the bottom end (crankpin) bearing is lubricated", "cross_family": false }, { "answer_id": "XHD-BRG-C-004", "score": 0.5984969139099121, "sibling_score": 0.5984969139099121, "answer_score": null, "sibling_qid": "KOL-2025-07-1818-Q001", "sibling_text": "crosshead and guide shoes lubrication carried out in mc engine", "sibling_family": "2-Stroke - 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Crosshead and guide-shoe lubrication: oil path, the no-load-reversal film problem, MAN vs Sulzer", "cross_family": false } ] }, { "qid": "KOC-2021-08-2024-Q004", "text": "Oblique cut in generator ( it will reduce length of engine and more cargo can be carried)", "family": "Diesel Engines - Generator / Trunk Piston", "subtopic": "Connecting Rod / Oblique Cut", "tid": "KOC-2021-08-2024", "tray": "new", "candidates": [ { "answer_id": "CRB-008", "score": 0.5162743330001831, "sibling_score": 0.5162743330001831, "answer_score": 0.4658225268125534, "sibling_qid": "MUM-2025-05-0273-Q019", "sibling_text": "why oblique cut in con rod big end", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Why is an oblique cut provided at the connecting rod big end?", "cross_family": true }, { "answer_id": "ALT-GEN-P04-001", "score": 0.48979705572128296, "sibling_score": 0.48979705572128296, "answer_score": null, "sibling_qid": "KOL-2021-10-2506-Q001", "sibling_text": "shaft generator arrangement", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Shaft generator - working and arrangement", "cross_family": true }, { "answer_id": "SHAFT-GEN-003", "score": 0.4763530194759369, "sibling_score": 0.4763530194759369, "answer_score": null, "sibling_qid": "KOC-2025-03-1507-Q003", "sibling_text": "shaft generator its arrangement it s limitations", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Limitations, drawbacks and disadvantages of a shaft generator", "cross_family": true } ] }, { "qid": "KOC-2021-09-0022-Q001", "text": "Container cross section", "family": "", "subtopic": "Container Stability", "tid": "KOC-2021-09-0022", "tray": "review", "candidates": [ { "answer_id": "KGF-A-004", "score": 0.7999668121337891, "sibling_score": 0.7999668121337891, "answer_score": 0.46938101053237913, "sibling_qid": "KOC-2024-10-0439-Q002", "sibling_text": "container cross section", "sibling_family": "", "via": "sibling", "answer_title": "Hull / midship cross-section: draw & identify", "cross_family": false }, { "answer_id": "SHIPTYPE-BTC-001", "score": 0.6668523550033569, "sibling_score": 0.6668523550033569, "answer_score": 0.4517864346504211, "sibling_qid": "KOC-2024-11-0449-Q001", "sibling_text": "cross section of a container ship", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Container ship construction — cross-section, framing and special structural features", "cross_family": false }, { "answer_id": "SHIPTYPE-BTC-004", "score": 0.6406592130661011, "sibling_score": 0.6406592130661011, "answer_score": null, "sibling_qid": "KOC-2025-01-0503-Q002", "sibling_text": "tanker cross section", "sibling_family": "Cargo Ops - 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Structural and watertight-integrity items: sheer, superstructure and flush deck", "cross_family": false }, { "answer_id": "GZKN-P02-001", "score": 0.4950382113456726, "sibling_score": 0.4950382113456726, "answer_score": null, "sibling_qid": "KOL-2019-07-0300-Q002", "sibling_text": "forward perpendicular cross curve of stability what it signifify", "sibling_family": "", "via": "sibling", "answer_title": "Cross curves of stability (KN curves) — draw, explain, and use to build the GZ curve", "cross_family": false } ] }, { "qid": "KOC-2021-09-0025-Q001", "text": "Topics in Fn 3", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOC-2021-09-0025", "tray": "new", "candidates": [ { "answer_id": "SEEMP-123-B-001", "score": 0.5433074235916138, "sibling_score": 0.5433074235916138, "answer_score": null, "sibling_qid": "KOC-2026-03-0880-Q002", "sibling_text": "function 3 contents", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SEEMP Part III — the ship's operational carbon-intensity (CII) plan", "cross_family": true }, { "answer_id": "IMO-CODES-P03-001", "score": 0.4679047167301178, "sibling_score": 0.4679047167301178, "answer_score": null, "sibling_qid": "KOC-2026-03-0863-Q002", "sibling_text": "what all topics cover under fn 3 and explain the conventions marpol solas mlc stcw", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Important IMO conventions and codes: parent links", "cross_family": true }, { "answer_id": "BCH-IBC-A-001", "score": 0.45378780364990234, "sibling_score": 0.45378780364990234, "answer_score": null, "sibling_qid": "MUM-2026-02-0778-Q003", "sibling_text": "what is t1 t2 and t3", "sibling_family": "Cargo Ops - 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Statutory", "subtopic": "CSR / Continuous Synopsis Record", "tid": "KOC-2021-09-0026", "tray": "new", "candidates": [ { "answer_id": "ISPS-P03-001", "score": 0.57297682762146, "sibling_score": 0.57297682762146, "answer_score": 0.19563523828983306, "sibling_qid": "KOC-2023-08-0211-Q016", "sibling_text": "cso responsibilities paul sir", "sibling_family": "ISPS", "via": "sibling", "answer_title": "Company Security Officer (CSO): duties, functions and responsibilities", "cross_family": true }, { "answer_id": "CERT-LIST-P03-003", "score": 0.5289275050163269, "sibling_score": 0.5289275050163269, "answer_score": null, "sibling_qid": "KOC-2023-08-0212-Q005", "sibling_text": "seq survey certificate contents paul sir", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Cargo Ship Safety Equipment Certificate & Form E", "cross_family": false }, { "answer_id": "ESP-A-001", "score": 0.5023106336593628, "sibling_score": 0.5023106336593628, "answer_score": null, "sibling_qid": "KOC-2023-03-0154-Q015", "sibling_text": "enhanced survey program internal paul sir", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the Enhanced Survey Programme (ESP), and what is its purpose?", "cross_family": false } ] }, { "qid": "KOC-2021-09-0945-Q001", "text": "Engine specification", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOC-2021-09-0945", "tray": "review", "candidates": [ { "answer_id": "ENG-NOM-006", "score": 0.8071643710136414, "sibling_score": 0.8071643710136414, "answer_score": null, "sibling_qid": "CHE-2026-03-0181-Q001", "sibling_text": "engine specification", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Short-form asks: SMC-C, LMC, and ME vs MC quickly", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7215942740440369, "sibling_score": 0.7215942740440369, "answer_score": null, "sibling_qid": "MUM-2026-07-3719-Q006", "sibling_text": "type of engine and it s specification", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false }, { "answer_id": "ETP-344-P03-003", "score": 0.49310222566127776, "sibling_score": null, "answer_score": 0.49310222566127776, "sibling_qid": "", "sibling_text": "engine nomenclature layout mark number and engine constant designation order man b w cylinders stroke bore letter k l s g bore in cm m programme concept e electronic c camshaft design c compact b camshaft controlled exhaust hybrid mark number gi if gas injection tier rating stroke bore letters k short l long s super long g ultra long green the ratios are approximate design values not exact", "sibling_family": "", "via": "answer_title", "answer_title": "Engine nomenclature, layout, mark number and engine constant", "cross_family": false } ] }, { "qid": "KOC-2021-09-0945-Q006", "text": "A/E lubrication, how going in & out", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE 4-Stroke Theory", "tid": "KOC-2021-09-0945", "tray": "new", "candidates": [ { "answer_id": "AE-MB-006", "score": 0.5530358552932739, "sibling_score": 0.5530358552932739, "answer_score": 0.4155204206705093, "sibling_qid": "KOL-2022-03-1667-Q004", "sibling_text": "ae main bearing upper half lubrication", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Lubrication of the upper half of an AE main bearing", "cross_family": false }, { "answer_id": "ALPHA-LUB-B-003", "score": 0.5281752347946167, "sibling_score": 0.5281752347946167, "answer_score": null, "sibling_qid": "MUM-2026-06-3601-Q003", "sibling_text": "alpha lubricator working", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Alpha lubricator — components, accumulator, solenoids and pressures", "cross_family": true }, { "answer_id": "ALPHA-LUB-A-001", "score": 0.5220872163772583, "sibling_score": 0.5220872163772583, "answer_score": null, "sibling_qid": "KOL-2018-03-1358-Q003", "sibling_text": "alpha lubricator draw and working", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Alpha lubricator — working principle and full system", "cross_family": true } ] }, { "qid": "KOC-2021-09-0945-Q008", "text": "Why engine need warm up", "family": "2-Stroke - Operations & Casualty", "subtopic": "Unit Hot / Overheating", "tid": "KOC-2021-09-0945", "tray": "new", "candidates": [ { "answer_id": "COT-P03-13", "score": 0.5588670372962952, "sibling_score": 0.5588670372962952, "answer_score": null, "sibling_qid": "KOC-2026-02-1101-Q004", "sibling_text": "warming up procedure of turbine", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Steam-driven COPT — the impulse-turbine principle and safe warming-through to load", "cross_family": true }, { "answer_id": "BLR-OPS-006", "score": 0.5506894588470459, "sibling_score": 0.5506894588470459, "answer_score": 0.4458882391452789, "sibling_qid": "MUM-2023-09-1061-Q002", "sibling_text": "warming up of boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Explain the warming up of a boiler.", "cross_family": true }, { "answer_id": "SAE-388-003", "score": 0.5364925265312195, "sibling_score": 0.5364925265312195, "answer_score": null, "sibling_qid": "MUM-2026-02-2919-Q009", "sibling_text": "main engine starting air line hot", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "The starting air line is getting hot, or a starting valve is leaking — your action as 2nd Engineer?", "cross_family": false } ] }, { "qid": "KOC-2021-09-2025-Q005", "text": "Lock out tag out procedure Ans : for doing any maintenance in any system, electrical breaker should be switched off and locked with a key. Also the valves should be isolated and locked with key. All these keys should be kept in a safe box. This safe box must be locked with another key. That key for the box should be kept with the person or persons in charge of work. Also the breaker and valves should be tagged with \"do not operate\" board", "family": "Risk & Safety Management", "subtopic": "LOTO / Isolation Permit", "tid": "KOC-2021-09-2025", "tray": "review", "candidates": [ { "answer_id": "CBKR-D-ISORACK-001", "score": 0.6924426555633545, "sibling_score": 0.6924426555633545, "answer_score": 0.5669081985950469, "sibling_qid": "MUM-2026-06-3426-Q007", "sibling_text": "racking out of circuit breaker and safeties", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "How do you safely isolate, rack out, withdraw and prove dead an ACB/VCB before work?", "cross_family": true }, { "answer_id": "MSB-ESB-F-001", "score": 0.683367908000946, "sibling_score": 0.683367908000946, "answer_score": null, "sibling_qid": "MUM-2026-07-3672-Q001", "sibling_text": "main switch board safety", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What safeties, protection trips, relays and alarms are provided on the MSB/ESB and how are they tested?", "cross_family": true }, { "answer_id": "MSB-ESB-E-001", "score": 0.6832684278488159, "sibling_score": 0.6832684278488159, "answer_score": null, "sibling_qid": "CHE-2026-01-0329-Q001", "sibling_text": "main switch board safeties", "sibling_family": "", "via": "sibling", "answer_title": "What safeties, protection trips, relays and alarms are provided on the MSB / ESB, and how are they tested?", "cross_family": false } ] }, { "qid": "KOC-2021-09-2025-Q006", "text": "Electrical isolation permit - only the safety part", "family": "Risk & Safety Management", "subtopic": "Permit to Work / Enclosed Space", "tid": "KOC-2021-09-2025", "tray": "review", "candidates": [ { "answer_id": "ELEC-SAFE-001", "score": 0.7165566682815552, "sibling_score": 0.7165566682815552, "answer_score": null, "sibling_qid": "MUM-2026-05-3321-Q003", "sibling_text": "all electrical isolation permits", "sibling_family": "", "via": "sibling", "answer_title": "Electrical isolation checklist before working on equipment", "cross_family": false }, { "answer_id": "HV-SYS-P04-001", "score": 0.6533390283584595, "sibling_score": 0.6533390283584595, "answer_score": null, "sibling_qid": "KOL-2025-06-1981-Q002", "sibling_text": "all safeties in high voltage", "sibling_family": "", "via": "sibling", "answer_title": "HV-SYS-P04-001 - HV hazards, advantages and safeties", "cross_family": false }, { "answer_id": "MNS-019", "score": 0.6200364828109741, "sibling_score": 0.6200364828109741, "answer_score": null, "sibling_qid": "KOC-2024-08-1386-Q003", "sibling_text": "safety for single phasing", "sibling_family": "Electrical - 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LSA & Lifeboats", "via": "sibling", "answer_title": "Annual and 5-yearly lifeboat/davit tests (the servicing regime)", "cross_family": false }, { "answer_id": "LBT-TEST-B-001", "score": 0.8003366589546204, "sibling_score": 0.8003366589546204, "answer_score": null, "sibling_qid": "KOC-2026-05-2131-Q006", "sibling_text": "tests in lifeboat davits explain dynamic test how much is the proof load how it is loaded", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat/davit load-test proof loads and test conditions", "cross_family": false } ] }, { "qid": "KOC-2021-10-0027-Q002", "text": "Bulbous Bow", "family": "", "subtopic": "Bulbous Bow", "tid": "KOC-2021-10-0027", "tray": "new", "candidates": [ { "answer_id": "PPS-230-006", "score": 0.5635225772857666, "sibling_score": 0.5635225772857666, "answer_score": 0.3317027449607849, "sibling_qid": "MUM-2026-02-0782-Q011", "sibling_text": "bulbous bow how it is connected to ship shape of bow", "sibling_family": "", "via": "sibling", "answer_title": "Fore-end / fore-peak structure: draw and describe", "cross_family": false }, { "answer_id": "DRG-B-009", "score": 0.4569272994995117, "sibling_score": 0.4569272994995117, "answer_score": null, "sibling_qid": "KOL-2020-09-0422-Q008", "sibling_text": "bowsing tackle", "sibling_family": "SOLAS - 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Bulk carrier construction and structural design", "cross_family": false } ] }, { "qid": "KOC-2021-10-0031-Q001", "text": "MLC title 5", "family": "MLC", "subtopic": "MLC / DMLC / Work-Rest", "tid": "KOC-2021-10-0031", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.5029792785644531, "sibling_score": 0.5029792785644531, "answer_score": 0.31519827991724014, "sibling_qid": "KOC-2026-05-2135-Q011", "sibling_text": "mlc titles explain title 1 explain dmlc part 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "MLC-WRH-B-006", "score": 0.4525979459285736, "sibling_score": 0.4525979459285736, "answer_score": 0.26850314289331434, "sibling_qid": "MUM-2026-07-3680-Q005", "sibling_text": "what is mlc certificate under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false }, { "answer_id": "CLC-CIV-B-003", "score": 0.4502161145210266, "sibling_score": 0.4502161145210266, "answer_score": null, "sibling_qid": "KOL-2020-02-0392-Q002", "sibling_text": "llmc prescise 5 words", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "LLMC: purpose, scope and limitation of maritime claims", "cross_family": true } ] }, { "qid": "KOC-2021-10-0031-Q006", "text": "IACS", "family": "Surveys - Statutory", "subtopic": "IACS / Classification Society", "tid": "KOC-2021-10-0031", "tray": "review", "candidates": [ { "answer_id": "IACS-324-001", "score": 0.8027838468551636, "sibling_score": 0.8027838468551636, "answer_score": 0.42117872238159176, "sibling_qid": "KOC-2025-02-0543-Q001", "sibling_text": "iacs", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "1. 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He want ans- retentivity", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Eddy Current Losses", "tid": "KOC-2021-10-1149", "tray": "review", "candidates": [ { "answer_id": "XFMR-THY-C-001", "score": 0.6841772198677063, "sibling_score": 0.6841772198677063, "answer_score": 0.45580231249332426, "sibling_qid": "MUM-2025-09-2844-Q004", "sibling_text": "what is hysteresis loss", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Hysteresis loss in a transformer — cause, the factors it depends on, and how to cut it", "cross_family": false }, { "answer_id": "XFMR-THY-E-001", "score": 0.41869010925292965, "sibling_score": null, "answer_score": 0.41869010925292965, "sibling_qid": "", "sibling_text": "core iron loss and eddy current loss iron loss hysteresis loss eddy current loss it occurs in the core and is present whenever the transformer is energised hysteresis loss is proportional to frequency and to flux density to about the power 1 6 the steinmetz exponent up to roughly 2 for some grain oriented steels at high flux reduced by good magnetic material silicon steel grain oriented low hyster", "sibling_family": "", "via": "answer_title", "answer_title": "Core / iron loss and eddy-current loss", "cross_family": false }, { "answer_id": "IOCT-565-003", "score": 0.3755001068115234, "sibling_score": null, "answer_score": 0.3755001068115234, "sibling_qid": "", "sibling_text": "what is open circuit loss or the open circuit test and what does it indicate open circuit loss no load loss iron core loss hysteresis eddy current constant with load set by voltage flux and frequency not by load current", "sibling_family": "", "via": "answer_title", "answer_title": "What is open-circuit loss, or the open-circuit test, and what does it indicate?", "cross_family": false } ] }, { "qid": "KOC-2021-11-0032-Q001", "text": "what all subject in function3", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOC-2021-11-0032", "tray": "new", "candidates": [ { "answer_id": "SEEMP-123-B-001", "score": 0.5823294520378113, "sibling_score": 0.5823294520378113, "answer_score": null, "sibling_qid": "KOC-2026-03-0880-Q002", "sibling_text": "function 3 contents", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SEEMP Part III — the ship's operational carbon-intensity (CII) plan", "cross_family": true }, { "answer_id": "IMO-CODES-P03-001", "score": 0.5390604734420776, "sibling_score": 0.5390604734420776, "answer_score": null, "sibling_qid": "KOC-2026-03-0886-Q002", "sibling_text": "what is function 3 subjects involved he want naval architecture and ship construction first", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Important IMO conventions and codes: parent links", "cross_family": true }, { "answer_id": "UNL-330-001", "score": 0.5093865394592285, "sibling_score": 0.5093865394592285, "answer_score": null, "sibling_qid": 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subjects involved he want naval architecture and ship construction first", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Important IMO conventions and codes: parent links", "cross_family": true }, { "answer_id": "UNL-330-001", "score": 0.5057613253593445, "sibling_score": 0.5057613253593445, "answer_score": null, "sibling_qid": "KOL-2022-04-1673-Q005", "sibling_text": "3 function of unloder x que", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "What is the function of the main air compressor unloader?", "cross_family": true } ] }, { "qid": "KOC-2021-11-0034-Q007", "text": "Bulbous bow cross section ,explain, purpse and material", "family": "", "subtopic": "Bulbous Bow", "tid": "KOC-2021-11-0034", "tray": "new", "candidates": [ { "answer_id": "PPS-230-006", "score": 0.499420166015625, "sibling_score": 0.499420166015625, "answer_score": null, "sibling_qid": "MUM-2026-02-0782-Q011", "sibling_text": "bulbous bow how it is connected to ship shape of bow", "sibling_family": "", "via": "sibling", "answer_title": "Fore-end / fore-peak structure: draw and describe", "cross_family": false }, { "answer_id": "BSBH-420-002", "score": 0.46660876274108887, "sibling_score": 0.46660876274108887, "answer_score": 0.44442344307899473, "sibling_qid": "KOC-2026-01-0781-Q005", "sibling_text": "cross section of forward of bulk head", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Fore-end / forepeak construction forward of the collision bulkhead — members and cross-section", "cross_family": false }, { "answer_id": "FWFB-P02-005", "score": 0.4627438306808472, "sibling_score": null, "answer_score": 0.4627438306808472, "sibling_qid": "", "sibling_text": "other members breast hook bulb angle cross tie margin coffin shoe plates breast hook horizontal triangular plate bracket at the bow and aft tying the two sides across the centreline at the stem helps resist panting forward bulb angle bulb flat stiffener a flat bar with a rounded bulb on one edge for added stiffness without a separate flange shell deck and bulkhead stiffening", "sibling_family": "", "via": "answer_title", "answer_title": "Other members: breast hook, bulb angle, cross tie, margin / coffin / shoe plates", "cross_family": false } ] }, { "qid": "KOC-2021-11-0034-Q010", "text": "6 MLC titles", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOC-2021-11-0034", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.5310693383216858, "sibling_score": 0.5310693383216858, "answer_score": null, "sibling_qid": "KOC-2026-05-2135-Q011", "sibling_text": "mlc titles explain title 1 explain dmlc part 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "MLC-WRH-B-007", "score": 0.4490322172641754, "sibling_score": 0.4490322172641754, "answer_score": null, "sibling_qid": "MUM-2026-02-0734-Q007", "sibling_text": "mlc 2006 detainable deficiency", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false }, { "answer_id": "MLC-WRH-B-006", "score": 0.44583702087402344, "sibling_score": 0.44583702087402344, "answer_score": null, "sibling_qid": "KOL-2023-10-0783-Q003", "sibling_text": "mlc certificates", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false } ] }, { "qid": "KOC-2021-11-0035-Q004", "text": "Cross section of bilge primary tank", "family": "Bilge & Ballast Systems", "subtopic": "Primary Bilge Tank", "tid": "KOC-2021-11-0035", "tray": "review", "candidates": [ { "answer_id": "SHELL-PLT-B-001", "score": 0.6566054821014404, "sibling_score": 0.6566054821014404, "answer_score": null, "sibling_qid": "MUM-2026-04-2958-Q002", "sibling_text": "show bilge keel shear strake duct keel double bottom tank cross section", 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"KOC-2021-11-0035-Q005", "text": "what is IACS, what are their functions.?? IRS part of IACS??", "family": "Surveys - Statutory", "subtopic": "IACS / Classification Society", "tid": "KOC-2021-11-0035", "tray": "new", "candidates": [ { "answer_id": "IACS-324-001", "score": 0.5665302276611328, "sibling_score": 0.5665302276611328, "answer_score": 0.4392881453037262, "sibling_qid": "KOC-2023-09-0220-Q003", "sibling_text": "iacs function", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "1. 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"answer_title": "What navigation lights are carried, where, and how many?", "cross_family": false }, { "answer_id": "bdc-p05-03", "score": 0.6044213771820068, "sibling_score": 0.6044213771820068, "answer_score": null, "sibling_qid": "KOC-2026-02-1695-Q006", "sibling_text": "gmdss equipments", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "CQ-BDC-025 GMDSS reserve battery — requirement, supply, voltage and equipment Medium", "cross_family": true }, { "answer_id": "LT-SRC-007", "score": 0.5905978679656982, "sibling_score": 0.5905978679656982, "answer_score": null, "sibling_qid": "KOC-2025-12-1657-Q006", "sibling_text": "navigational ckt where supply coming from regulations where all are the navigational lights", "sibling_family": "", "via": "sibling", "answer_title": "What is the navigation-light supply source, voltage and emergency arrangement?", "cross_family": false } ] }, { "qid": "KOC-2021-11-1151-Q008", "text": "Types of radar", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "KOC-2021-11-1151", "tray": "new", "candidates": [ { "answer_id": "DUS-P3-05", "score": 0.5773557424545288, "sibling_score": 0.5773557424545288, "answer_score": 0.41691071540117264, "sibling_qid": "MUM-2026-09-3886-Q005", "sibling_text": "how ships radar working", "sibling_family": "Navigation & Bridge Equipment", "via": "sibling", "answer_title": "Radar inspection while entering drydock, and the certificate covering DB inspection", "cross_family": true }, { "answer_id": "DES-571-001", "score": 0.5618724226951599, "sibling_score": 0.5618724226951599, "answer_score": null, "sibling_qid": "KOC-2023-12-1312-Q015", "sibling_text": "type of speed log onboard and doppler effect", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "The Doppler log — measuring the ship's speed by the Doppler effect", "cross_family": false }, { "answer_id": "FSH-DET-001", "score": 0.5545856952667236, 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"sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Deadband, hysteresis and alarm latitude", "cross_family": true } ] }, { "qid": "KOC-2021-11-1154-Q002", "text": "Hysterisis loss", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Eddy Current Losses", "tid": "KOC-2021-11-1154", "tray": "review", "candidates": [ { "answer_id": "XFMR-THY-C-001", "score": 0.7474701404571533, "sibling_score": 0.7474701404571533, "answer_score": 0.5143544346094131, "sibling_qid": "KOL-2022-08-2588-Q006", "sibling_text": "hysterisis loss where it occurs", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Hysteresis loss in a transformer — cause, the factors it depends on, and how to cut it", "cross_family": false }, { "answer_id": "XFMR-THY-E-001", "score": 0.47806055545806886, "sibling_score": null, "answer_score": 0.47806055545806886, "sibling_qid": "", "sibling_text": "core iron loss and eddy current loss iron loss hysteresis loss eddy current loss it occurs in the core and is present whenever the transformer is energised hysteresis loss is proportional to frequency and to flux density to about the power 1 6 the steinmetz exponent up to roughly 2 for some grain oriented steels at high flux reduced by good magnetic material silicon steel grain oriented low hyster", "sibling_family": "", "via": "answer_title", "answer_title": "Core / iron loss and eddy-current loss", "cross_family": false }, { "answer_id": "IOCT-565-003", "score": 0.4111825734376907, "sibling_score": null, "answer_score": 0.4111825734376907, "sibling_qid": "", "sibling_text": "what is open circuit loss or the open circuit test and what does it indicate open circuit loss no load loss iron core loss hysteresis eddy current constant with load set by voltage flux and frequency not by load current", "sibling_family": "", "via": "answer_title", "answer_title": "What is open-circuit loss, or the open-circuit test, and what does it indicate?", "cross_family": false } ] }, { "qid": "KOC-2021-11-1768-Q004", "text": "boiler safety valve setting. And diagram of top part of high lift safety valve", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2021-11-1768", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.7490471005439758, "sibling_score": 0.7490471005439758, "answer_score": null, "sibling_qid": "KOL-2026-01-3904-Q003", "sibling_text": "setting of boiler safety valve cross questions in high lift safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.7174355983734131, "sibling_score": 0.7174355983734131, "answer_score": null, "sibling_qid": "CHE-2026-05-0597-Q020", "sibling_text": "boiler safety valve how the setting is done", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.7087832093238831, "sibling_score": 0.7087832093238831, "answer_score": null, "sibling_qid": "KOC-2026-08-2122-Q005", "sibling_text": "boiler safety valve setting in front of surveyor", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false } ] }, { "qid": "KOC-2021-11-1769-Q004", "text": "egb safety v/v setting", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2021-11-1769", "tray": "new", "candidates": [ { "answer_id": "BWTEST-A-001", "score": 0.5902647376060486, "sibling_score": 0.5902647376060486, "answer_score": null, "sibling_qid": "KOC-2026-05-2126-Q006", "sibling_text": "egb safety valve setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "ACRV-005", "score": 0.5122121572494507, "sibling_score": 0.5122121572494507, "answer_score": null, "sibling_qid": "MUM-2023-03-1042-Q003", "sibling_text": "safety relief v v difference", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": false }, { "answer_id": "CO2-SYS-005", "score": 0.49619555473327637, "sibling_score": 0.49619555473327637, "answer_score": null, "sibling_qid": "KOL-2023-03-0727-Q005", "sibling_text": "safeties in co2 system what is the setting of relief v v", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 system safeties, CO2-room requirements, alarms and ventilation", "cross_family": true } ] }, { "qid": "KOC-2021-11-1769-Q005", "text": "one ahu not cooling reasons", "family": "Refrigeration & AC", "subtopic": "Refrigeration Faults / Checks", "tid": "KOC-2021-11-1769", "tray": "review", "candidates": [ { "answer_id": "REFR-FLT-001", "score": 0.6886616349220276, "sibling_score": 0.6886616349220276, "answer_score": 0.5197998464107513, "sibling_qid": "KOL-2019-10-3279-Q005", "sibling_text": "cooling not taking place in refer what problems not basic ones", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Provision/cold room temperature: will not pull down, runs too low, or will not hold", "cross_family": false }, { "answer_id": "REFR-FLT-003", "score": 0.6881179213523865, "sibling_score": 0.6881179213523865, "answer_score": null, "sibling_qid": "MUM-2026-02-1259-Q009", "sibling_text": "ac is not cooling down reasons sufficient refrigerant present", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Refrigerant leakage or loss: detect, confirm, respond, and the record-keeping", "cross_family": false }, { "answer_id": "AE-HOT-BLOW-006", "score": 0.6347792148590088, "sibling_score": 0.6347792148590088, "answer_score": null, "sibling_qid": "MUM-2026-05-3301-Q003", "sibling_text": "ae one unit air temp low reason", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Auxiliary engine all units exhaust temperature high — reasons", "cross_family": true } ] }, { "qid": "KOC-2021-12-0042-Q001", "text": "Type of ship sailed -chemical tanker", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2021-12-0042", "tray": "review", "candidates": [ { "answer_id": "IBC-BCH-B-004", "score": 0.8548601269721985, "sibling_score": 0.8548601269721985, "answer_score": null, "sibling_qid": "MUM-2026-05-3156-Q001", "sibling_text": "type of ships chemical tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Certificate of Fitness and MARPOL Annex II in practice", "cross_family": false }, { "answer_id": "BCH-IBC-A-001", "score": 0.8462048768997192, "sibling_score": 0.8462048768997192, "answer_score": 0.5785695195198058, "sibling_qid": "CHE-2026-03-0128-Q001", "sibling_text": "type of chemical tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type 1, Type 2 and Type 3 chemical tankers — the ship-type classification", "cross_family": false }, { "answer_id": "COT-01", "score": 0.8227860331535339, "sibling_score": 0.8227860331535339, "answer_score": 0.5846085608005523, "sibling_qid": "KOC-2026-04-0892-Q003", "sibling_text": "type of ship sailed tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Oil-tanker types, definitions and cargo capability", "cross_family": false } ] }, { "qid": "KOC-2021-12-0042-Q006", "text": "MLC titles,title 2 explain,dmlc 1 and 2(answer this by ending with we get mlc certificate)", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOC-2021-12-0042", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.6544618010520935, "sibling_score": 0.6544618010520935, "answer_score": 0.3978299379348755, "sibling_qid": "KOC-2026-05-2135-Q011", "sibling_text": "mlc titles explain title 1 explain dmlc part 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "MLC-WRH-B-006", "score": 0.6177211999893188, "sibling_score": 0.6177211999893188, "answer_score": 0.3087458461523056, "sibling_qid": "MUM-2025-06-0310-Q002", "sibling_text": "certificates of mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false }, { "answer_id": "FLAG-ST-007", "score": 0.33042869865894314, "sibling_score": null, "answer_score": 0.33042869865894314, "sibling_qid": "", "sibling_text": "flag state enforcement of mlc compliance mlc 2006 the fourth pillar with solas marpol and stcw the flag enforces it on its own ships mechanism dmlc part i flag s national requirements part ii owner s measures the maritime labour certificate which the flag or its ro issues after inspection", "sibling_family": "", "via": "answer_title", "answer_title": "Flag State enforcement of MLC compliance", "cross_family": false } ] }, { "qid": "KOC-2021-12-0044-Q001", "text": "Type of ship sailed - container", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2021-12-0044", "tray": "review", "candidates": [ { "answer_id": "DB-TORBOX-B-003", "score": 0.8792495131492615, "sibling_score": 0.8792495131492615, "answer_score": null, "sibling_qid": "CHE-2026-04-0150-Q001", "sibling_text": "type of ship sailed container", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "What is a torsion box — definition and construction", "cross_family": false }, { "answer_id": "SOLAS12-BC-A-001", "score": 0.7763422131538391, "sibling_score": 0.7763422131538391, "answer_score": null, "sibling_qid": "MUM-2026-06-3382-Q001", "sibling_text": "type of ship sailed bulk carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "SOLAS definition and scope of a bulk carrier", "cross_family": false }, { "answer_id": "COT-01", "score": 0.7653787732124329, "sibling_score": 0.7653787732124329, "answer_score": null, "sibling_qid": "KOC-2026-04-0892-Q003", "sibling_text": "type of ship sailed tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Oil-tanker types, definitions and cargo capability", "cross_family": false } ] }, { "qid": "KOC-2021-12-0044-Q006", "text": "MLC titles,title 2 explain,dmlc 1 and 2.. Who issues dmlc? Flagstate", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOC-2021-12-0044", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.6186975836753845, "sibling_score": 0.6186975836753845, "answer_score": 0.3889762610197067, "sibling_qid": "KOC-2026-05-2135-Q011", "sibling_text": "mlc titles explain title 1 explain dmlc part 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "FLAG-ST-007", "score": 0.34720502644777296, "sibling_score": null, "answer_score": 0.34720502644777296, "sibling_qid": "", "sibling_text": "flag state enforcement of mlc compliance mlc 2006 the fourth pillar with solas marpol and stcw the flag enforces it on its own ships mechanism dmlc part i flag s national requirements part ii owner s measures the maritime labour certificate which the flag or its ro issues after inspection", "sibling_family": "", "via": "answer_title", "answer_title": "Flag State enforcement of MLC compliance", "cross_family": false }, { "answer_id": "FLAG-ST-005", "score": 0.27170262187719346, "sibling_score": null, "answer_score": 0.27170262187719346, "sibling_qid": "", "sibling_text": "certificates issued only by the flag state most statutory certificates safety construction safety equipment safety radio load line iopp iapp ispp issc the ism smc and doc and the international tonnage certificate are delegable to and usually issued by an ro class on the flag s behalf imo survey and certification ro code flag only documents the administration does not delegate", "sibling_family": "", "via": "answer_title", "answer_title": "Certificates issued only by the flag state", "cross_family": false } ] }, { "qid": "KOC-2021-12-2028-Q006", "text": "Draw and Explain bulbous bow- what is the material used", "family": "", "subtopic": "Bulbous Bow", "tid": "KOC-2021-12-2028", "tray": "new", "candidates": [ { "answer_id": "PPS-230-006", "score": 0.4679468870162964, "sibling_score": 0.4679468870162964, "answer_score": 0.32970982789993286, "sibling_qid": "MUM-2026-02-0782-Q011", "sibling_text": "bulbous bow how it is connected to ship shape of bow", "sibling_family": "", "via": "sibling", "answer_title": "Fore-end / fore-peak structure: draw and describe", "cross_family": false }, { "answer_id": "FWFB-P02-005", "score": 0.4352042257785797, "sibling_score": null, "answer_score": 0.4352042257785797, "sibling_qid": "", "sibling_text": "other members breast hook bulb angle cross tie margin coffin shoe plates breast hook horizontal triangular plate bracket at the bow and aft tying the two sides across the centreline at the stem helps resist panting forward bulb angle bulb flat stiffener a flat bar with a rounded bulb on one edge for added stiffness without a separate flange shell deck and bulkhead stiffening", "sibling_family": "", "via": "answer_title", "answer_title": "Other members: breast hook, bulb angle, cross tie, margin / coffin / shoe plates", "cross_family": false }, { "answer_id": "DRG-B-009", "score": 0.4237278699874878, "sibling_score": 0.4237278699874878, "answer_score": null, "sibling_qid": "KOL-2020-09-0422-Q008", "sibling_text": "bowsing tackle", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Bowsing tackle and tricing pendant", "cross_family": false } ] }, { "qid": "KOC-2021-12-2028-Q008", "text": "MLC title 2 Explain – all contents in title 2", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOC-2021-12-2028", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.5992145538330078, "sibling_score": 0.5992145538330078, "answer_score": 0.25517452210187913, "sibling_qid": "KOC-2026-05-2135-Q011", "sibling_text": "mlc titles explain title 1 explain dmlc part 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "SOLAS-CH-003", "score": 0.43834006786346436, "sibling_score": 0.43834006786346436, "answer_score": null, "sibling_qid": "KOC-2025-05-2065-Q008", "sibling_text": "explain solas chapter 2 of 2", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS Chapter II-2 - fire protection, detection and extinction", "cross_family": true }, { "answer_id": "ISM-2E-A-001", "score": 0.4281068444252014, "sibling_score": 0.4281068444252014, "answer_score": null, "sibling_qid": "CHE-2026-04-0163-Q018", "sibling_text": "role of 2e in mlc and ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Roles, duties and responsibilities of a Second Engineer under ISM/SMS", "cross_family": true } ] }, { "qid": "KOC-2021-12-2028-Q009", "text": "ISM audit preparation as 2nd engineer ( he is expecting all the analysis report to file, BDN especially)", "family": "ISM Code", "subtopic": "ISM Audit / Preparation", "tid": "KOC-2021-12-2028", "tray": "new", "candidates": [ { "answer_id": "ISM-2E-B-001", "score": 0.6126902103424072, "sibling_score": 0.6126902103424072, "answer_score": 0.4201856076717377, "sibling_qid": "KOC-2022-09-0092-Q005", "sibling_text": "ism audit preparation as 2nd engineer", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "B1. Preparing for an ISM audit as Second Engineer", "cross_family": false }, { "answer_id": "ISM-AUDIT-P01-001", "score": 0.6073755025863647, "sibling_score": 0.6073755025863647, "answer_score": null, "sibling_qid": "KOL-2021-04-3391-Q004", "sibling_text": "as second engineer what docs you submit for ism audit", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Preparing engine room, records and documents for ISM/SMS audit (2/E)", "cross_family": false }, { "answer_id": "ISM-2E-C-001", "score": 0.60390704870224, "sibling_score": 0.60390704870224, "answer_score": 0.49403783679008484, "sibling_qid": "KOC-2025-06-0608-Q006", "sibling_text": "ism audit preparations as 2e mainly documents in engine room", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM audit / survey preparation as Second Engineer — beyond the paperwork", "cross_family": false } ] }, { "qid": "KOC-2021-12-2028-Q010", "text": "SMS contents", "family": "ISM Code", "subtopic": "SMS / Functional Requirements", "tid": "KOC-2021-12-2028", "tray": "review", "candidates": [ { "answer_id": "SMSFR-002", "score": 0.8255584836006165, "sibling_score": 0.8255584836006165, "answer_score": null, "sibling_qid": "KOC-2022-03-0063-Q002", "sibling_text": "contents of sms", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the Safety Management System — the SMS manual, its contents, objectives, why it is needed onboard, and the company SMS policy?", "cross_family": false }, { "answer_id": "ISM-AUD-P02-004", "score": 0.8249080181121826, "sibling_score": 0.8249080181121826, "answer_score": 0.28392856717109677, "sibling_qid": "MUM-2022-08-0033-Q001", "sibling_text": "contents of sms", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "SMS contents, manuals, documents and drill records onboard", "cross_family": false }, { "answer_id": "ISM-SMCDOC-A-001", "score": 0.6642739176750183, "sibling_score": 0.6642739176750183, "answer_score": null, "sibling_qid": "MUM-2026-05-3182-Q002", "sibling_text": "what is sms", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM certificates: the DOC and SMC family", "cross_family": false } ] }, { "qid": "KOC-2022-01-0045-Q007", "text": "Mlc titles? Title 1 explain? Dmlc 1 and 2?", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOC-2022-01-0045", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.7285402417182922, "sibling_score": 0.7285402417182922, "answer_score": 0.3002844348549843, "sibling_qid": "KOC-2026-05-2135-Q011", "sibling_text": "mlc titles explain title 1 explain dmlc part 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "ENG-NOM-006", "score": 0.23676866441965103, "sibling_score": null, "answer_score": 0.23676866441965103, "sibling_qid": "", "sibling_text": "short form asks smc c lmc and me vs mc quickly smc c super long stroke man programme camshaft controlled compact lmc l long stroke the l is the stroke letter not a control or compact letter", "sibling_family": "", "via": "answer_title", "answer_title": "Short-form asks: SMC-C, LMC, and ME vs MC quickly", "cross_family": false }, { "answer_id": "ISM-ELEM-003", "score": 0.2329917937517166, "sibling_score": null, "answer_score": 0.2329917937517166, "sibling_qid": "", "sibling_text": "elements chapters structure of the ism code part a implementation the 12 elements 1 general 1 1 definitions 1 2 objectives 1 3 application 1 4 functional requirements for an sms", "sibling_family": "", "via": "answer_title", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": false } ] }, { "qid": "KOC-2022-01-0045-Q010", "text": "Type of vessel", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2022-01-0045", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8509957194328308, "sibling_score": 0.8509957194328308, "answer_score": null, "sibling_qid": "MUM-2026-06-3384-Q001", "sibling_text": "type of vessel", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.7771771550178528, "sibling_score": 0.7771771550178528, "answer_score": null, "sibling_qid": "CHE-2026-02-0481-Q001", "sibling_text": "type of vessels sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7703128457069397, "sibling_score": 0.7703128457069397, "answer_score": 0.5230402112007141, "sibling_qid": "CHE-2026-02-0109-Q001", "sibling_text": "type of ship explain what type is your vessel explain their type and difference", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "KOC-2022-01-0047-Q002", "text": "Continuos synopsis record", "family": "Surveys - Statutory", "subtopic": "CSR / Continuous Synopsis Record", "tid": "KOC-2022-01-0047", "tray": "review", "candidates": [ { "answer_id": "CSR-585-001", "score": 0.8548294305801392, "sibling_score": 0.8548294305801392, "answer_score": 0.3780078455805778, "sibling_qid": "KOC-2025-08-0646-Q001", "sibling_text": "continuous synopsis record", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the Continuous Synopsis Record (CSR)? Explain its purpose and requirements.", "cross_family": false }, { "answer_id": "CSM-214-001", "score": 0.4839267134666443, "sibling_score": 0.4839267134666443, "answer_score": null, "sibling_qid": "KOC-2023-10-0225-Q009", "sibling_text": "csm he wants to know why called continuous", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "What CSM is, and why it is called “continuous”", "cross_family": true }, { "answer_id": "SEQ-330-001", "score": 0.4070635437965393, "sibling_score": 0.4070635437965393, "answer_score": null, "sibling_qid": "KOC-2024-01-0291-Q008", "sibling_text": "seq survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Safety Equipment survey — what it is, its scope, and what is checked", "cross_family": false } ] }, { "qid": "KOC-2022-01-0047-Q003", "text": "Mlc certificate and dmlc part two", "family": "MLC", "subtopic": "MLC / DMLC / Work-Rest", "tid": "KOC-2022-01-0047", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-006", "score": 0.6682021021842957, "sibling_score": 0.6682021021842957, "answer_score": 0.3262127488851547, "sibling_qid": "MUM-2026-06-3656-Q002", "sibling_text": "certificates under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false }, { "answer_id": "MLC-WRH-B-001", "score": 0.5345001220703125, "sibling_score": 0.5345001220703125, "answer_score": 0.3953038841485977, "sibling_qid": "MUM-2026-01-0673-Q004", "sibling_text": "dmlc 1 and dmlc 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "FLAG-ST-007", "score": 0.34018647372722627, "sibling_score": null, "answer_score": 0.34018647372722627, "sibling_qid": "", "sibling_text": "flag state enforcement of mlc compliance mlc 2006 the fourth pillar with solas marpol and stcw the flag enforces it on its own ships mechanism dmlc part i flag s national requirements part ii owner s measures the maritime labour certificate which the flag or its ro issues after inspection", "sibling_family": "", "via": "answer_title", "answer_title": "Flag State enforcement of MLC compliance", "cross_family": false } ] }, { "qid": "KOC-2022-01-0049-Q002", "text": "Type of ship sailed?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2022-01-0049", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8456622958183289, "sibling_score": 0.8456622958183289, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.844673752784729, "sibling_score": 0.844673752784729, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7923667430877686, "sibling_score": 0.7923667430877686, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "KOC-2022-01-0049-Q005", "text": "What is bulbous bow, why, how it works, advantage?", "family": "", "subtopic": "Bulbous Bow", "tid": "KOC-2022-01-0049", "tray": "new", "candidates": [ { "answer_id": "PPS-230-006", "score": 0.5363433361053467, "sibling_score": 0.5363433361053467, "answer_score": null, "sibling_qid": "MUM-2026-04-0896-Q004", "sibling_text": "bulbous bow how it is attached to ship why it is attached name of the wave which counteracts the original bow wave how bulbous bow improves efficiency", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Fore-end / fore-peak structure: draw and describe", "cross_family": false }, { "answer_id": "BHD-TYP-C-001", "score": 0.4207395017147064, "sibling_score": 0.4207395017147064, "answer_score": null, "sibling_qid": "KOL-2025-11-1115-Q004", "sibling_text": "advantage of corrugated bulkhead how buckling is resisted wanted to hear", "sibling_family": "", "via": "sibling", "answer_title": "Corrugated bulkhead — what it is, where used, why stronger than plain", "cross_family": false }, { "answer_id": "SHIPTYPE-BTC-002", "score": 0.417235791683197, "sibling_score": 0.417235791683197, "answer_score": null, "sibling_qid": "CHE-2025-11-0082-Q008", "sibling_text": "why bow flare is big in container compared to bulk carrier", "sibling_family": "", "via": "sibling", "answer_title": "Why a container ship has more bow flare than a bulk carrier or tanker", "cross_family": false } ] }, { "qid": "KOC-2022-01-0050-Q005", "text": "Enclosed space entry procedure? How do you ensure ready for entry? What are the measurements and their limit? What is LEL?", "family": "Risk & Safety Management", "subtopic": "Enclosed Space Entry", "tid": "KOC-2022-01-0050", "tray": "review", "candidates": [ { "answer_id": "ESE-P02-001", "score": 0.6937665343284607, "sibling_score": 0.6937665343284607, "answer_score": null, "sibling_qid": "KOC-2021-07-0018-Q004", "sibling_text": "enclosed space entry condition answer 21 oxygen hc gas less than 1 lel toxic gases less than 50 tlv what device use to check toxic gases he needs to hear dragen tupe", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "ESE-P02-01. Threshold limits, TLV and toxic-gas interpretation for entry", "cross_family": false }, { "answer_id": "ESE-P01-001", "score": 0.6916339993476868, "sibling_score": 0.6916339993476868, "answer_score": null, "sibling_qid": "KOL-2017-02-0064-Q002", "sibling_text": "definition for enclosed space exact definition enclosed space entry procedure in detail what gases are found in an enclosed space what concentration is allowed for man entry", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "Definition and criteria of an enclosed space", "cross_family": false }, { "answer_id": "ESE-P02-008", "score": 0.6858224272727966, "sibling_score": 0.6858224272727966, "answer_score": 0.5215639650821685, "sibling_qid": "KOL-2024-05-0834-Q004", "sibling_text": "checks prior to entry into enclosed space", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "ESE-P02-08. Before, during and after: confirming a space is safe to enter", "cross_family": false } ] }, { "qid": "KOC-2022-01-0051-Q003", "text": "what is bulbous bow and advantages ,how bulbous reduces wake making resistance", "family": "", "subtopic": "Bulbous Bow", "tid": "KOC-2022-01-0051", "tray": "new", "candidates": [ { "answer_id": "PPS-230-006", "score": 0.6145662665367126, "sibling_score": 0.6145662665367126, "answer_score": null, "sibling_qid": "MUM-2026-04-0896-Q004", "sibling_text": "bulbous bow how it is attached to ship why it is attached name of the wave which counteracts the original bow wave how bulbous bow improves efficiency", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Fore-end / fore-peak structure: draw and describe", "cross_family": false }, { "answer_id": "RES-PROP-P01-002", "score": 0.5566774606704712, "sibling_score": 0.5566774606704712, "answer_score": 0.44968459010124207, "sibling_qid": "KOL-2024-09-0867-Q004", "sibling_text": "how to reduce hull resistance", "sibling_family": "", "via": "sibling", "answer_title": "Resistance types and methods of reducing them", "cross_family": false }, { "answer_id": "BK-003", "score": 0.5157620310783386, "sibling_score": 0.5157620310783386, "answer_score": null, "sibling_qid": "KOC-2023-06-2039-Q003", "sibling_text": "bilge keel how it reduces y not full length formula", "sibling_family": "", "via": "sibling", "answer_title": "What are the bilge-keel design, length, depth and protrusion requirements?", "cross_family": false } ] }, { "qid": "KOC-2022-01-0054-Q005", "text": "enclosed entry procedure and permit? Explain... ////// How to check the enclose space atmospheric condition?? I answered as we use multigas detector to find hydrocarbons and oxygen level...but he didnt accept. Sir told multigas detector is using for enclose space entry", "family": "Risk & Safety Management", "subtopic": "Enclosed Space Entry", "tid": "KOC-2022-01-0054", "tray": "review", "candidates": [ { "answer_id": "ESE-P02-001", "score": 0.8064343333244324, "sibling_score": 0.8064343333244324, "answer_score": null, "sibling_qid": "KOC-2021-07-0018-Q004", "sibling_text": "enclosed space entry condition answer 21 oxygen hc gas less than 1 lel toxic gases less than 50 tlv what device use to check toxic gases he needs to hear dragen tupe", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "ESE-P02-01. Threshold limits, TLV and toxic-gas interpretation for entry", "cross_family": false }, { "answer_id": "ESE-P01-009", "score": 0.8024135828018188, "sibling_score": 0.8024135828018188, "answer_score": 0.5957152634859085, "sibling_qid": "KOL-2019-07-0293-Q005", "sibling_text": "before entering enclose space what all checks o2 percentage name device used all other gases percentages", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "Atmosphere checks, gases to test and safe entry limits", "cross_family": false }, { "answer_id": "ESE-P02-002", "score": 0.7958185076713562, "sibling_score": 0.7958185076713562, "answer_score": null, "sibling_qid": "KOC-2025-10-1583-Q008", "sibling_text": "enclosed space entry what all gas u check and values how o2analyser works", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "ESE-P02-02. Oxygen analyser: working principle and calibration", "cross_family": false } ] }, { "qid": "KOC-2022-01-0054-Q008", "text": "answered. //////////What is the various levels of hydrocarbons, toxic gases, oxygen etc ? ///////////what is Lower explosive limit??? ////////// details on the permits??", "family": "Risk & Safety Management", "subtopic": "Enclosed Space Entry", "tid": "KOC-2022-01-0054", "tray": "review", "candidates": [ { "answer_id": "ESE-P01-010", "score": 0.7006948590278625, "sibling_score": 0.7006948590278625, "answer_score": null, "sibling_qid": "KOC-2024-11-0445-Q006", "sibling_text": "gas limits for tanker entry lower and upper limits of oxygen", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "Oxygen percentage limits for enclosed-space entry", "cross_family": false }, { "answer_id": "ESE-P02-001", "score": 0.653950035572052, "sibling_score": 0.653950035572052, "answer_score": 0.5318950533866882, "sibling_qid": "KOC-2021-07-0018-Q004", "sibling_text": "enclosed space entry condition answer 21 oxygen hc gas less than 1 lel toxic gases less than 50 tlv what device use to check toxic gases he needs to hear dragen tupe", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "ESE-P02-01. Threshold limits, TLV and toxic-gas interpretation for entry", "cross_family": false }, { "answer_id": "ESE-P01-009", "score": 0.643429696559906, "sibling_score": 0.643429696559906, "answer_score": 0.5116899162530899, "sibling_qid": "MUM-2023-03-0087-Q009", "sibling_text": "enclosed spaces hazardous gases limits", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "Atmosphere checks, gases to test and safe entry limits", "cross_family": false } ] }, { "qid": "KOC-2022-01-0949-Q007", "text": "cast iron welding problems", "family": "Workshop & Welding", "subtopic": "Cast Iron Welding", "tid": "KOC-2022-01-0949", "tray": "review", "candidates": [ { "answer_id": "WELD-B-001", "score": 0.8095284104347229, "sibling_score": 0.8095284104347229, "answer_score": 0.5277832686901093, "sibling_qid": "MUM-2026-07-3727-Q007", "sibling_text": "cast iron welding difficulties", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding & crack-repair of aluminium and cast iron, including metal stitching", "cross_family": false }, { "answer_id": "LH-ELEC-006", "score": 0.5312082529067993, "sibling_score": null, "answer_score": 0.5312082529067993, "sibling_qid": "", "sibling_text": "6 how would you approach a cast iron valve repair when the examiner probes welding and low hydrogen electrodes first response replace or fit a sound same size valve a welded cast iron repair is a stop gap not equal to new if welding cast iron not a plain mild steel low hydrogen rod the high carbon makes a hard brittle cracking weld", "sibling_family": "", "via": "answer_title", "answer_title": "6. How would you approach a cast-iron valve repair when the examiner probes welding and low-hydrogen electrodes?", "cross_family": false }, { "answer_id": "WELD-PATM-011", "score": 0.5074147403240203, "sibling_score": null, "answer_score": 0.5074147403240203, "sibling_qid": "", "sibling_text": "arc welding defects porosity trapped gas lost shield damp rods dirty oily surface slag inclusion slag not chipped cleaned between passes", "sibling_family": "", "via": "answer_title", "answer_title": "Arc welding defects", "cross_family": false } ] }, { "qid": "KOC-2022-01-0951-Q001", "text": "Last engine I answered ME", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOC-2022-01-0951", "tray": "new", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.6231433749198914, "sibling_score": 0.6231433749198914, "answer_score": null, "sibling_qid": "KOC-2026-05-0045-Q002", "sibling_text": "whether done me engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "MCC-MEB-P02-003", "score": 0.5808967351913452, "sibling_score": 0.5808967351913452, "answer_score": null, "sibling_qid": "MUM-2024-07-1084-Q004", "sibling_text": "me engine tha", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Conventional MC / MC-C versus electronic ME — the practical operating differences", "cross_family": true }, { "answer_id": "ILK-318-001", "score": 0.543252170085907, "sibling_score": 0.543252170085907, "answer_score": null, "sibling_qid": "MUM-2022-09-1021-Q005", "sibling_text": "interlocks in me engine in your last ship", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "1. What are the main engine interlocks?", "cross_family": true } ] }, { "qid": "KOC-2022-01-0951-Q004", "text": "Turbocharger static and dynamic balancing", "family": "Turbocharger", "subtopic": "Turbocharger (General)", "tid": "KOC-2022-01-0951", "tray": "review", "candidates": [ { "answer_id": "TC-CS-P01-008", "score": 0.8501556515693665, "sibling_score": 0.8501556515693665, "answer_score": 0.628020977973938, "sibling_qid": "KOC-2026-09-2200-Q007", "sibling_text": "turbocharger balancing explain static and dynamic balancing", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "H·Static and dynamic balancing of the turbocharger rotor", "cross_family": false }, { "answer_id": "TC-OVHL-005", "score": 0.8392117619514465, "sibling_score": 0.8392117619514465, "answer_score": 0.6321195900440216, "sibling_qid": "KOL-2025-09-3858-Q004", "sibling_text": "static and dynamic balancing of a turbocharger", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharger rotor balancing and shaft trueness", "cross_family": false }, { "answer_id": "TC-OVHL-002", "score": 0.7297800779342651, "sibling_score": 0.7297800779342651, "answer_score": null, "sibling_qid": "KOL-2025-03-3757-Q001", "sibling_text": "ae turbocharger overhauling balancing how to change bearing t c specifications", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Auxiliary-engine turbocharger overhaul and checks", "cross_family": false } ] }, { "qid": "KOC-2022-01-0952-Q007", "text": "What is gusset stay? ■ Which parts exactly gusset stay is fixed? He want the specific position, (((not the top part of the combustion chamber)))", "family": "Boilers - Construction & Components", "subtopic": "Ogee Ring", "tid": "KOC-2022-01-0952", "tray": "new", "candidates": [ { "answer_id": "OGEE-RING-001", "score": 0.5765160918235779, "sibling_score": 0.5765160918235779, "answer_score": null, "sibling_qid": "KOC-2022-07-0972-Q003", "sibling_text": "ogee ring and gusset stay explain with figures", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "The ogee ring: what it is, where it sits, its purpose, and how it's formed and connected", "cross_family": false }, { "answer_id": "FWFB-P02-001", "score": 0.5475726127624512, "sibling_score": 0.5475726127624512, "answer_score": 0.39909293949604036, "sibling_qid": "MUM-2022-10-0061-Q005", "sibling_text": "gusset plate where used", "sibling_family": "", "via": "sibling", "answer_title": "Brackets, knees and gusset plates", "cross_family": false }, { "answer_id": "VIB-BAL-C-FINAL-1-001", "score": 0.4697490632534027, "sibling_score": 0.4697490632534027, "answer_score": null, "sibling_qid": "MUM-2026-07-3767-Q004", "sibling_text": "exact location of the 2nd moment compensator in the main engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "First- & Second-Order External Moments, Guide-Force Moments & Moment Compensators", "cross_family": true } ] }, { "qid": "KOC-2022-01-0955-Q005", "text": "Bunker calculation", "family": "MARPOL - General & Compliance", "subtopic": "Bunker Plan / Checks", "tid": "KOC-2022-01-0955", "tray": "review", "candidates": [ { "answer_id": "BUNK-PLAN-004", "score": 0.6703794598579407, "sibling_score": 0.6703794598579407, "answer_score": 0.43349325358867646, "sibling_qid": "KOL-2021-08-0539-Q002", "sibling_text": "bunkering procedure bunker calculation", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Bunker plan: tank selection, quantity / overflow control, calculation and procedure", "cross_family": false }, { "answer_id": "BDI-469-002", "score": 0.6026432514190674, "sibling_score": 0.6026432514190674, "answer_score": 0.43337556123733517, "sibling_qid": "KOC-2023-03-0161-Q002", "sibling_text": "what is vcf and wcf in bunker calculations it s formula", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Density correction — VCF and WCF in bunker calculations", "cross_family": false }, { "answer_id": "BDN-001-004", "score": 0.5977014303207397, "sibling_score": 0.5977014303207397, "answer_score": null, "sibling_qid": "KOC-2025-07-1044-Q001", "sibling_text": "f o bunker specification", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Fuel spec on the BDN — sulphur, ISO 8217, % m/m, ppm", "cross_family": false } ] }, { "qid": "KOC-2022-01-0955-Q006", "text": "What is API table? And 1 more question can't remember now", "family": "MARPOL - General & Compliance", "subtopic": "Bunker Density Issue", "tid": "KOC-2022-01-0955", "tray": "new", "candidates": [ { "answer_id": "VIT-MECH-B-001", "score": 0.358859121799469, "sibling_score": 0.358859121799469, "answer_score": null, "sibling_qid": "KOL-2018-04-1858-Q001", "sibling_text": "1 drew a table for me and asked me to fill up vit index and air pressure 40 85 n 100 load", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "The VIT / Super VIT curve — breakpoint, range and load-dependent advance/retard", "cross_family": true }, { "answer_id": "HKC-IHM-B-004", "score": 0.3563254475593567, "sibling_score": 0.3563254475593567, "answer_score": null, "sibling_qid": "MUM-2025-05-0250-Q008", "sibling_text": "hong kong convention full contents in table 1 and table 2", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What hazardous materials, including asbestos, are controlled through the IHM?", "cross_family": true }, { "answer_id": "AE-TAPPET-002", "score": 0.33966660499572754, "sibling_score": 0.33966660499572754, "answer_score": null, "sibling_qid": "KOL-2021-11-3490-Q006", "sibling_text": "ae tappet why taken and value", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "What is tappet clearance, why is it needed, what values, and what if it is too low / high / zero?", "cross_family": true } ] }, { "qid": "KOC-2022-01-1162-Q001", "text": "Draw three point starter", "family": "Electrical - Motors & Starters", "subtopic": "DC Motor Three-Point Starter", "tid": "KOC-2022-01-1162", "tray": "review", "candidates": [ { "answer_id": "STR-DEC-A-001", "score": 0.7572277784347534, "sibling_score": 0.7572277784347534, "answer_score": null, "sibling_qid": "KOC-2026-05-2133-Q010", "sibling_text": "draw and explain 3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "STARTER-DEC-B-003", "score": 0.6680259108543396, "sibling_score": 0.6680259108543396, "answer_score": null, "sibling_qid": "KOC-2023-04-1255-Q006", "sibling_text": "dol starter 3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "DOL starter — use, current, range and limits", "cross_family": false }, { "answer_id": "SDST-A-001", "score": 0.6294894218444824, "sibling_score": 0.6294894218444824, "answer_score": 0.3457674875855446, "sibling_qid": "KOC-2024-10-1407-Q001", "sibling_text": "draw star delta starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false } ] }, { "qid": "KOC-2022-01-1163-Q015", "text": "Which type of cargo u carried in last ship", "family": "Cargo Ops - Bulk Carriers", "subtopic": "Bulk Carrier / IMSBC", "tid": "KOC-2022-01-1163", "tray": "review", "candidates": [ { "answer_id": "TKR-TYPE-004", "score": 0.6754581928253174, "sibling_score": 0.6754581928253174, "answer_score": 0.4590934425592422, "sibling_qid": "MUM-2025-09-0481-Q004", "sibling_text": "type of cargo", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "4. Tanker cargo-type classification, examples, and sweet vs sour crude", "cross_family": true }, { "answer_id": "SOLAS-XII-BC-002", "score": 0.667188823223114, "sibling_score": 0.667188823223114, "answer_score": null, "sibling_qid": "KOC-2026-09-2208-Q005", "sibling_text": "bulk carrier as per solas", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Explain SOLAS Chapter XII — the additional safety measures for bulk carriers", "cross_family": false }, { "answer_id": "SOLAS12-BC-A-001", "score": 0.6598906517028809, "sibling_score": 0.6598906517028809, "answer_score": 0.45482307970523833, "sibling_qid": "MUM-2026-06-3382-Q001", "sibling_text": "type of ship sailed bulk carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "SOLAS definition and scope of a bulk carrier", "cross_family": true } ] }, { "qid": "KOC-2022-01-1163-Q018", "text": "(Something MHC he asked which I never heard off)", "family": "Cargo Ops - Bulk Carriers", "subtopic": "Bulk Carrier / IMSBC", "tid": "KOC-2022-01-1163", "tray": "new", "candidates": [ { "answer_id": "MRV-DCS-001", "score": 0.5707626938819885, "sibling_score": 0.5707626938819885, "answer_score": null, "sibling_qid": "CHE-2025-10-0516-Q008", "sibling_text": "he asked something like mrvs something i dont know", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is the difference between EU MRV and IMO DCS?", "cross_family": true }, { "answer_id": "FQCC-583-A-001", "score": 0.4672803282737732, "sibling_score": 0.4672803282737732, "answer_score": null, "sibling_qid": "KOL-2025-09-1061-Q003", "sibling_text": "ccai i don t know why he asked", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "CCAI — what it is, how it is calculated, and what it is really for", "cross_family": true }, { "answer_id": "CHAIN-TENS-C-001", "score": 0.441845566034317, "sibling_score": 0.441845566034317, "answer_score": null, "sibling_qid": "KOC-2021-05-1758-Q008", "sibling_text": "chain tightening mc explained and mcc little bit he asked remaining i forgot", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main-engine chain drive — how you know it is slack, and how you check and tighten it", "cross_family": true } ] }, { "qid": "KOC-2022-01-1165-Q003", "text": "What is hysteresis loss?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Eddy Current Losses", "tid": "KOC-2022-01-1165", "tray": "review", "candidates": [ { "answer_id": "XFMR-THY-C-001", "score": 0.703532874584198, "sibling_score": 0.703532874584198, "answer_score": 0.5189165711402893, "sibling_qid": "MUM-2026-06-3595-Q005", "sibling_text": "hysteresis loss", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Hysteresis loss in a transformer — cause, the factors it depends on, and how to cut it", "cross_family": false }, { "answer_id": "XFMR-THY-E-001", "score": 0.4756423652172089, "sibling_score": null, "answer_score": 0.4756423652172089, "sibling_qid": "", "sibling_text": "core iron loss and eddy current loss iron loss hysteresis loss eddy current loss it occurs in the core and is present whenever the transformer is energised hysteresis loss is proportional to frequency and to flux density to about the power 1 6 the steinmetz exponent up to roughly 2 for some grain oriented steels at high flux reduced by good magnetic material silicon steel grain oriented low hyster", "sibling_family": "", "via": "answer_title", "answer_title": "Core / iron loss and eddy-current loss", "cross_family": false }, { "answer_id": "IOCT-565-003", "score": 0.3973293274641037, "sibling_score": null, "answer_score": 0.3973293274641037, "sibling_qid": "", "sibling_text": "what is open circuit loss or the open circuit test and what does it indicate open circuit loss no load loss iron core loss hysteresis eddy current constant with load set by voltage flux and frequency not by load current", "sibling_family": "", "via": "answer_title", "answer_title": "What is open-circuit loss, or the open-circuit test, and what does it indicate?", "cross_family": false } ] }, { "qid": "KOC-2022-01-1166-Q001", "text": "Hystersis loss - i tried to explain the basic definiton but he didnt accept...may be am wrong and he need his own wordings... Not interested in diagram or graphs...only explain", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Eddy Current Losses", "tid": "KOC-2022-01-1166", "tray": "review", "candidates": [ { "answer_id": "XFMR-THY-C-001", "score": 0.7450050711631775, "sibling_score": 0.7450050711631775, "answer_score": 0.549948999285698, "sibling_qid": "KOL-2022-08-2588-Q006", "sibling_text": "hysterisis loss where it occurs", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Hysteresis loss in a transformer — cause, the factors it depends on, and how to cut it", "cross_family": false }, { "answer_id": "XFMR-THY-E-001", "score": 0.5088856160640717, "sibling_score": null, "answer_score": 0.5088856160640717, "sibling_qid": "", "sibling_text": "core iron loss and eddy current loss iron loss hysteresis loss eddy current loss it occurs in the core and is present whenever the transformer is energised hysteresis loss is proportional to frequency and to flux density to about the power 1 6 the steinmetz exponent up to roughly 2 for some grain oriented steels at high flux reduced by good magnetic material silicon steel grain oriented low hyster", "sibling_family": "", "via": "answer_title", "answer_title": "Core / iron loss and eddy-current loss", "cross_family": false }, { "answer_id": "IOCT-565-003", "score": 0.4367778480052948, "sibling_score": null, "answer_score": 0.4367778480052948, "sibling_qid": "", "sibling_text": "what is open circuit loss or the open circuit test and what does it indicate open circuit loss no load loss iron core loss hysteresis eddy current constant with load set by voltage flux and frequency not by load current", "sibling_family": "", "via": "answer_title", "answer_title": "What is open-circuit loss, or the open-circuit test, and what does it indicate?", "cross_family": false } ] }, { "qid": "KOC-2022-01-1773-Q001", "text": "refrigeration plant changeover", "family": "Refrigeration & AC", "subtopic": "Refrigeration Faults / Checks", "tid": "KOC-2022-01-1773", "tray": "review", "candidates": [ { "answer_id": "REEF-CHG-002", "score": 0.6729521155357361, "sibling_score": 0.6729521155357361, "answer_score": null, "sibling_qid": "CHE-2026-02-0334-Q006", "sibling_text": "refrigeration a gas charging b oil charging c change over stand by d checks before and after", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "02Where and how gas and liquid refrigerant are charged into the system", "cross_family": false }, { "answer_id": "TEV-TXV-008", "score": 0.6439000964164734, "sibling_score": 0.6439000964164734, "answer_score": null, "sibling_qid": "KOL-2020-12-3368-Q003", "sibling_text": "refrigeration plant veg room provisions are being taken so it ll have more refrigerant flowing through it how the other rooms are maintained in their respective temperatures", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Maintaining different room temperatures off one plant", "cross_family": false }, { "answer_id": "EQ-LINE-001", "score": 0.626576840877533, "sibling_score": 0.626576840877533, "answer_score": null, "sibling_qid": "KOC-2024-11-0451-Q004", "sibling_text": "reefer plant equilizing line", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Purpose and function of the equalising line / equalising valve in refrigeration service", "cross_family": false } ] }, { "qid": "KOC-2022-01-1773-Q004", "text": "butterfly valve overhaul", "family": "Auxiliary Equipment", "subtopic": "VALVES", "tid": "KOC-2022-01-1773", "tray": "review", "candidates": [ { "answer_id": "GV-330-002", "score": 0.876950740814209, "sibling_score": 0.876950740814209, "answer_score": 0.5436504065990447, "sibling_qid": "KOC-2026-02-2005-Q006", "sibling_text": "butterfly valve overhaul", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Gate valve overhaul, checks & the stuck / not-operating valve", "cross_family": false }, { "answer_id": "JCW-SYS-005", "score": 0.6962844133377075, "sibling_score": 0.6962844133377075, "answer_score": 0.5080400347709656, "sibling_qid": "MUM-2026-04-1319-Q003", "sibling_text": "why butterfly valve", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "What valve is used in the ME jacket cooling-water system - why butterfly and not gate, and where they are positioned", "cross_family": true }, { "answer_id": "EXV-P02-001", "score": 0.679534375667572, "sibling_score": 0.679534375667572, "answer_score": null, "sibling_qid": "KOC-2026-02-0807-Q010", "sibling_text": "exh valve overhauling procedure", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve overhaul & dismantling — procedure and precautions", "cross_family": true } ] }, { "qid": "KOC-2022-01-1773-Q005", "text": "Holding down bolts tightness test", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Holding Down Bolts", "tid": "KOC-2022-01-1773", "tray": "review", "candidates": [ { "answer_id": "TBR-TT-P02-002", "score": 0.7673781514167786, "sibling_score": 0.7673781514167786, "answer_score": 0.45061219632625577, "sibling_qid": "MUM-2026-02-2549-Q006", "sibling_text": "holding down bolts tightness check", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Checking tie rod tightness / slackness — stopped and running", "cross_family": false }, { "answer_id": "TBR-TT-P02-001", "score": 0.718911349773407, "sibling_score": 0.718911349773407, "answer_score": null, "sibling_qid": "CHE-2026-05-0641-Q012", "sibling_text": "holding down bolts checks and tightening", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Tie rod tightening / hydraulic tensioning procedure", "cross_family": false }, { "answer_id": "FB-COUP-001", "score": 0.6442968249320984, "sibling_score": 0.6442968249320984, "answer_score": null, "sibling_qid": "MUM-2026-06-3439-Q003", "sibling_text": "how the fitted bolts are bolted", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What fitted bolts are, what they do, and where they sit onboard", "cross_family": false } ] }, { "qid": "KOC-2022-01-1774-Q005", "text": "Boiler safety valve setting.Top part diagram.Where compression ring is fitted", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2022-01-1774", "tray": "review", "candidates": [ { "answer_id": "MR-DS-PV-B-006", "score": 0.7011552453041077, "sibling_score": 0.7011552453041077, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q005", "sibling_text": "full bore safety valve diagram", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "6. Deck isolating valve, deck relief/safety devices, and cargo-tank pressure", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.6841356158256531, "sibling_score": 0.6841356158256531, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q011", "sibling_text": "boiler safety valve setting in front of surveyor", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.6726269721984863, "sibling_score": 0.6726269721984863, "answer_score": null, "sibling_qid": "CHE-2026-05-0597-Q020", "sibling_text": "boiler safety valve how the setting is done", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false } ] }, { "qid": "KOC-2022-01-1777-Q006", "text": "boiler safety valve setting", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2022-01-1777", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-001", "score": 0.8647704720497131, "sibling_score": 0.8647704720497131, "answer_score": null, "sibling_qid": "CHE-2026-04-0500-Q005", "sibling_text": "boiler safety valve setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.8231942057609558, "sibling_score": 0.8231942057609558, "answer_score": null, "sibling_qid": "MUM-2026-03-2935-Q013", "sibling_text": "boiler safety valve setting in presence of surveyor after survey", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.8126317858695984, "sibling_score": 0.8126317858695984, "answer_score": null, "sibling_qid": "KOC-2026-05-0034-Q010", "sibling_text": "boiler safety valve types and how safety valve is set complete procedures", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOC-2022-01-1779-Q001", "text": "How to check foundation bolt?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Holding Down Bolts", "tid": "KOC-2022-01-1779", "tray": "new", "candidates": [ { "answer_id": "FB-COUP-001", "score": 0.6273952722549438, "sibling_score": 0.6273952722549438, "answer_score": null, "sibling_qid": "MUM-2026-02-1255-Q012", "sibling_text": "types of foundation bolts", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What fitted bolts are, what they do, and where they sit onboard", "cross_family": false }, { "answer_id": "CRB-002", "score": 0.6009045243263245, "sibling_score": 0.6009045243263245, "answer_score": 0.429206120967865, "sibling_qid": "CHE-2025-11-0221-Q004", "sibling_text": "checks on conrod bolts", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What checks and tests are carried out on connecting rod bolts? Why NDT, why check elongation, what is the maximum limit, and which section tends to shear off?", "cross_family": true }, { "answer_id": "TBR-TT-P02-002", "score": 0.5935522317886353, "sibling_score": 0.5935522317886353, "answer_score": null, "sibling_qid": "MUM-2026-02-2548-Q003", "sibling_text": "holding down bolt tighness check", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Checking tie rod tightness / slackness — stopped and running", "cross_family": false } ] }, { "qid": "KOC-2022-01-1779-Q002", "text": "Two AHU r thr. One is working and the other not working? What will you check?", "family": "Refrigeration & AC", "subtopic": "Refrigeration Faults / Checks", "tid": "KOC-2022-01-1779", "tray": "new", "candidates": [ { "answer_id": "TEV-TXV-005", "score": 0.6072338223457336, "sibling_score": 0.6072338223457336, "answer_score": null, "sibling_qid": "MUM-2026-05-3265-Q012", "sibling_text": "tev faulty no spare what to check", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Throttling process and superheat control across the TEV", "cross_family": false }, { "answer_id": "AVR-EXC-H-001", "score": 0.587580144405365, "sibling_score": 0.587580144405365, "answer_score": null, "sibling_qid": "MUM-2022-09-1358-Q002", "sibling_text": "how to check which components have become faulty", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "AVR — location, components and fault checks", "cross_family": true }, { "answer_id": "AEDEC-291-004", "score": 0.5863945484161377, "sibling_score": 0.5863945484161377, "answer_score": null, "sibling_qid": "KOL-2019-11-3298-Q002", "sibling_text": "ae full oh carried out ae running on no load what all things u will check as 2nd eng not satisfied with answer", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "4. Checks on no-load and before taking load", "cross_family": true } ] }, { "qid": "KOC-2022-01-1779-Q004", "text": "FWG vacuum dropping? Reasons?", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "KOC-2022-01-1779", "tray": "new", "candidates": [ { "answer_id": "FWG-RO-001", "score": 0.5464227199554443, "sibling_score": 0.5464227199554443, "answer_score": null, "sibling_qid": "MUM-2024-06-1081-Q006", "sibling_text": "fwg vaccum not coming", "sibling_family": "Fresh Water & Domestic Systems", "via": "sibling", "answer_title": "How is vacuum created in the FWG, why does it run under vacuum, and what if the vacuum will not come?", "cross_family": true }, { "answer_id": "VAC-COND-002", "score": 0.5402808785438538, "sibling_score": 0.5402808785438538, "answer_score": 0.41436692923307417, "sibling_qid": "CHE-2026-05-0559-Q010", "sibling_text": "vaccum loss in vacc cond reasons", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Low vacuum, suction loss and failure to build vacuum — the reasons", "cross_family": true }, { "answer_id": "FWG-RO-003", "score": 0.526215136051178, "sibling_score": 0.526215136051178, "answer_score": 0.39559401124715804, "sibling_qid": "KOC-2026-02-1100-Q007", "sibling_text": "fwg production reduces reasons", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "The FWG is not producing enough water or its efficiency has dropped. Reasons, checks and action?", "cross_family": false } ] }, { "qid": "KOC-2022-02-0061-Q001", "text": "safcon survey, preparation as second engg", "family": "Surveys - Statutory", "subtopic": "Safety Construction / Cargo Safety Cert", "tid": "KOC-2022-02-0061", "tray": "review", "candidates": [ { "answer_id": "SVY-SCOPE-002", "score": 0.7294641733169556, "sibling_score": 0.7294641733169556, "answer_score": null, "sibling_qid": "MUM-2025-05-2800-Q005", "sibling_text": "safcon survey as 2nd engg", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is checked in the engine room during a SAFCON (Safety Construction) survey?", "cross_family": false }, { "answer_id": "SEQ-330-002", "score": 0.6971830725669861, "sibling_score": 0.6971830725669861, "answer_score": 0.4273723393678665, "sibling_qid": "KOC-2024-12-2058-Q003", "sibling_text": "explain seq survey preparations as a second engineer", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Preparing the ship for the Safety Equipment survey as Second Engineer", "cross_family": false }, { "answer_id": "LLC-SURV-P01-001", "score": 0.6164700984954834, "sibling_score": 0.6164700984954834, "answer_score": 0.4344048500061035, "sibling_qid": "MUM-2026-09-3960-Q005", "sibling_text": "preparation of safcon and load line survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Load line survey preparation as Second Engineer: engine-room scope, machinery openings, tanks/vents, valves and overboard checks", "cross_family": false } ] }, { "qid": "KOC-2022-02-0061-Q003", "text": "orb.. code E, F, G, H", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "KOC-2022-02-0061", "tray": "new", "candidates": [ { "answer_id": "OWS-ORB-006", "score": 0.570473849773407, "sibling_score": 0.570473849773407, "answer_score": null, "sibling_qid": "CHE-2026-05-0634-Q009", "sibling_text": "orb all codes", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "6. Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-002", "score": 0.48951345682144165, "sibling_score": 0.48951345682144165, "answer_score": null, "sibling_qid": "CHE-2026-05-0543-Q003", "sibling_text": "orb in details", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "The Oil Record Book Part I — purpose, the letter codes, and how entries are made", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-004", "score": 0.4878472685813904, "sibling_score": 0.4878472685813904, "answer_score": null, "sibling_qid": "KOC-2026-04-0906-Q013", "sibling_text": "orb weekly entry code and number", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Weekly ORB entries — the mandatory sludge retention record, the bunker entry, and what is voluntary", "cross_family": false } ] }, { "qid": "KOC-2022-02-0061-Q004", "text": "how to record ows maintainace in orb", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "KOC-2022-02-0061", "tray": "new", "candidates": [ { "answer_id": "OWS-15PPM-003", "score": 0.48341867327690125, "sibling_score": 0.48341867327690125, "answer_score": null, "sibling_qid": "KOC-2026-02-0822-Q009", "sibling_text": "how do you make an entry of monthly testing of ows", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "AIRP-188-005", "score": 0.444536417722702, "sibling_score": 0.444536417722702, "answer_score": null, "sibling_qid": "MUM-2022-07-0013-Q004", "sibling_text": "what records are you maintaining for ods and what entries are being done", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "ODS Record Book and the IAPP equipment list — what and where?", "cross_family": true }, { "answer_id": "OWS-ORB-002", "score": 0.43338412046432495, "sibling_score": 0.43338412046432495, "answer_score": null, "sibling_qid": "MUM-2025-05-2800-Q006", "sibling_text": "iopp survey ows testing at port ows not working and reporting and 1 more i did not remeber", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "2. OWS / 15 ppm alarm not working — reporting and control actions as 2/E", "cross_family": false } ] }, { "qid": "KOC-2022-02-0957-Q004", "text": "Liner wear types , line wear rate and limts", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "KOC-2022-02-0957", "tray": "review", "candidates": [ { "answer_id": "CYL-LINER-P01-003", "score": 0.6718602776527405, "sibling_score": 0.6718602776527405, "answer_score": 0.4304593443870544, "sibling_qid": "KOL-2023-05-1931-Q001", "sibling_text": "liner inspection liner wears types wear rate liner calibration cross question", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "From the readings: wear, wear rate, units and renewal limits", "cross_family": false }, { "answer_id": "CYL-LINER-P01-001", "score": 0.6351235508918762, "sibling_score": 0.6351235508918762, "answer_score": null, "sibling_qid": "MUM-2023-08-2184-Q001", "sibling_text": "liner calibration 0vality rate of wear", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Carrying out main-engine liner calibration (gauging)", "cross_family": false }, { "answer_id": "CYL-LINER-P02-003", "score": 0.6343413591384888, "sibling_score": 0.6343413591384888, "answer_score": 0.3883182883262634, "sibling_qid": "KOL-2023-03-1728-Q010", "sibling_text": "types of liner wear", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L3 · T044-PART_02-G003High", "cross_family": false } ] }, { "qid": "KOC-2022-02-0958-Q003", "text": "what is C.O.P of refrigeration systems. ■ what are the various properties of refrigerants using onboard. ■", "family": "Refrigeration & AC", "subtopic": "1 Ton Refrigeration", "tid": "KOC-2022-02-0958", "tray": "review", "candidates": [ { "answer_id": "REF-CYC-004", "score": 0.6974511742591858, "sibling_score": 0.6974511742591858, "answer_score": 0.5659990847110749, "sibling_qid": "KOL-2024-12-1793-Q005", "sibling_text": "all refrigerant property", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "4. Desirable properties, selection and types of refrigerant", "cross_family": false }, { "answer_id": "REF-CYC-012", "score": 0.6898705363273621, "sibling_score": 0.6898705363273621, "answer_score": 0.5327632814645767, "sibling_qid": "KOC-2025-08-1570-Q014", "sibling_text": "refrigerant ideal properties more focusing on to thermodynamics properties", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Refrigerant — definition, ideal properties, and why air is not used", "cross_family": false }, { "answer_id": "REF-CYC-007", "score": 0.5234471946954727, "sibling_score": null, "answer_score": 0.5234471946954727, "sibling_qid": "", "sibling_text": "7 cop and improving refrigeration efficiency cop refrigerating effect compressor work input desired effect work on the cycle cop h1 h4 h2 h1 usually greater than one because the refrigerating effect exceeds the compressor work heat pump cop refrigerating cop 1", "sibling_family": "", "via": "answer_title", "answer_title": "7. COP and improving refrigeration efficiency", "cross_family": false } ] }, { "qid": "KOC-2022-02-1170-Q004", "text": "Navigation equipment?", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "KOC-2022-02-1170", "tray": "new", "candidates": [ { "answer_id": "LT-SRC-004", "score": 0.6394001841545105, "sibling_score": 0.6394001841545105, "answer_score": null, "sibling_qid": "MUM-2026-09-3954-Q004", "sibling_text": "navigation lights", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "What navigation lights are carried, where, and how many?", "cross_family": false }, { "answer_id": "bdc-p05-03", "score": 0.6100112795829773, "sibling_score": 0.6100112795829773, "answer_score": null, "sibling_qid": "KOC-2026-02-1695-Q006", "sibling_text": "gmdss equipments", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "CQ-BDC-025 GMDSS reserve battery — requirement, supply, voltage and equipment Medium", "cross_family": true }, { "answer_id": "SEQ-330-003", "score": 0.6075975894927979, "sibling_score": 0.6075975894927979, "answer_score": null, "sibling_qid": "KOC-2024-04-0335-Q006", "sibling_text": "seq survey apart from lsa ffa navigation", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "SEQ survey scope apart from LSA, FFA and navigation items", "cross_family": true } ] }, { "qid": "KOC-2022-02-1170-Q006", "text": "Certificate under civil laibality and MLC?", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOC-2022-02-1170", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-006", "score": 0.7072070837020874, "sibling_score": 0.7072070837020874, "answer_score": 0.3515526011586189, "sibling_qid": "MUM-2026-06-3656-Q002", "sibling_text": "certificates under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false }, { "answer_id": "CLC-CIV-B-004", "score": 0.5440171957015991, "sibling_score": 0.5440171957015991, "answer_score": null, "sibling_qid": "KOL-2023-10-0781-Q006", "sibling_text": "mlc certificate p i club marine insurance", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Marine insurance and the P&I club: hull cover vs liability cover", "cross_family": true }, { "answer_id": "CLC-CIV-A-004", "score": 0.492922306060791, "sibling_score": 0.492922306060791, "answer_score": 0.3519003838300705, "sibling_qid": "MUM-2026-07-3757-Q004", "sibling_text": "certificate of financial security as per mlc", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "CLC certificate, blue card and certificate of financial security", "cross_family": true } ] }, { "qid": "KOC-2022-02-1170-Q008", "text": "Navigation equipments?", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "KOC-2022-02-1170", "tray": "new", "candidates": [ { "answer_id": "LT-SRC-004", "score": 0.6288040280342102, "sibling_score": 0.6288040280342102, "answer_score": null, "sibling_qid": "MUM-2026-09-3954-Q004", "sibling_text": "navigation lights", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "What navigation lights are carried, where, and how many?", "cross_family": false }, { "answer_id": "bdc-p05-03", "score": 0.6044213771820068, "sibling_score": 0.6044213771820068, "answer_score": null, "sibling_qid": "KOC-2026-02-1695-Q006", "sibling_text": "gmdss equipments", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "CQ-BDC-025 GMDSS reserve battery — requirement, supply, voltage and equipment Medium", "cross_family": true }, { "answer_id": "LT-SRC-007", "score": 0.5905978679656982, "sibling_score": 0.5905978679656982, "answer_score": null, "sibling_qid": "KOC-2025-12-1657-Q006", "sibling_text": "navigational ckt where supply coming from regulations where all are the navigational lights", "sibling_family": "", "via": "sibling", "answer_title": "What is the navigation-light supply source, voltage and emergency arrangement?", "cross_family": false } ] }, { "qid": "KOC-2022-02-1172-Q006", "text": "frame number", "family": "Electrical - Motors & Starters", "subtopic": "Frame Number", "tid": "KOC-2022-02-1172", "tray": "review", "candidates": [ { "answer_id": "ELECTRICAL-M-A-01", "score": 0.8872311115264893, "sibling_score": 0.8872311115264893, "answer_score": 0.48464347422122955, "sibling_qid": "MUM-2026-03-1997-Q004", "sibling_text": "frame number", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Motor Frame Number", "cross_family": false }, { "answer_id": "KGF-A-002", "score": 0.8365280628204346, "sibling_score": 0.8365280628204346, "answer_score": 0.5909259498119354, "sibling_qid": "KOC-2026-08-2115-Q010", "sibling_text": "frame number", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Frame numbering, spacing & identification", "cross_family": true }, { "answer_id": "SHELL-PLT-A-001", "score": 0.6661694049835205, "sibling_score": 0.6661694049835205, "answer_score": null, "sibling_qid": "KOC-2024-08-0392-Q013", "sibling_text": "frame numbering shell expansion plan", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "The shell expansion plan, and how you identify a plate", "cross_family": true } ] }, { "qid": "KOC-2022-02-1172-Q007", "text": "explosion protection", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOC-2022-02-1172", "tray": "review", "candidates": [ { "answer_id": "SAE-388-001", "score": 0.7514693737030029, "sibling_score": 0.7514693737030029, "answer_score": null, "sibling_qid": "CHE-2026-02-0483-Q010", "sibling_text": "starting air explosion protection", "sibling_family": "2-Stroke - 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Int no questions", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2022-03-1782", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-001", "score": 0.8143917918205261, "sibling_score": 0.8143917918205261, "answer_score": null, "sibling_qid": "CHE-2026-05-0597-Q020", "sibling_text": "boiler safety valve how the setting is done", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.7919570803642273, "sibling_score": 0.7919570803642273, "answer_score": null, "sibling_qid": "KOC-2026-05-0034-Q010", "sibling_text": "boiler safety valve types and how safety valve is set complete procedures", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.7913379073143005, "sibling_score": 0.7913379073143005, "answer_score": null, "sibling_qid": "KOC-2026-08-2122-Q005", "sibling_text": "boiler safety valve setting in front of surveyor", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false } ] }, { "qid": "KOC-2022-03-1783-Q002", "text": "AE exhaust vlv broken wht all checks need to be done", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE 4-Stroke Theory", "tid": "KOC-2022-03-1783", "tray": "review", "candidates": [ { "answer_id": "EXV-P02-003", "score": 0.6985630393028259, "sibling_score": 0.6985630393028259, "answer_score": null, "sibling_qid": "MUM-2026-01-2537-Q003", "sibling_text": "checks in exhaust valve before fitting", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Checks and tests after overhaul — before refitting", "cross_family": true }, { "answer_id": "EXHV-297-003", "score": 0.6954361200332642, "sibling_score": 0.6954361200332642, "answer_score": 0.5824339121580123, "sibling_qid": "MUM-2025-01-2785-Q009", "sibling_text": "what will u inspect if engine exhaust valve is broken", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Leaking or broken exhaust valve — detect, assess and act in operation / manoeuvring", "cross_family": true }, { "answer_id": "EXV-P02-001", "score": 0.6954225301742554, "sibling_score": 0.6954225301742554, "answer_score": 0.5286606669425964, "sibling_qid": "KOL-2024-06-3695-Q004", "sibling_text": "exhaust valve overhauled and ready what checks you will carry out", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve overhaul & dismantling — procedure and precautions", "cross_family": true } ] }, { "qid": "KOC-2022-03-1783-Q004", "text": "6202 bearing", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Main Bearing", "tid": "KOC-2022-03-1783", "tray": "review", "candidates": [ { "answer_id": "BRG-NOM-001", "score": 0.694165825843811, "sibling_score": 0.694165825843811, "answer_score": 0.3609352856874466, "sibling_qid": "MUM-2025-10-2443-Q002", "sibling_text": "6203 bearing meaning", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bearing Numbers, Suffixes and What to State When Ordering", "cross_family": false }, { "answer_id": "STT-BRG-008", "score": 0.3672142967581749, "sibling_score": null, "answer_score": 0.3672142967581749, "sibling_qid": "", "sibling_text": "7 stern tube bearings number size fixing clearance weardown and high temperature", "sibling_family": "", "via": "answer_title", "answer_title": "7. Stern tube bearings — number, size, fixing, clearance, weardown and high-temperature", "cross_family": false }, { "answer_id": "CRANE-ROCK-LT-004", "score": 0.363150592148304, "sibling_score": null, "answer_score": 0.363150592148304, "sibling_qid": "", "sibling_text": "slew bearing type and toroidal wear behind the rocking racking test common marine deck crane arrangement single row four point contact ball slewing ring inner outer ring one ball row often geared confirm the actual crane from the maker drawing manual carries axial radial and overturning moment loads together the thin ring needs a stiff supporting structure not to distort", "sibling_family": "", "via": "answer_title", "answer_title": "Slew bearing type and toroidal wear behind the rocking/racking test", "cross_family": false } ] }, { "qid": "KOC-2022-03-1783-Q007", "text": "Purifier operating water function", "family": "Purifier & Centrifuges", "subtopic": "Purifier Operation / Bowl", "tid": "KOC-2022-03-1783", "tray": "review", "candidates": [ { "answer_id": "PURIF-172-006", "score": 0.6861883401870728, "sibling_score": 0.6861883401870728, "answer_score": 0.47346305549144746, "sibling_qid": "MUM-2025-07-2330-Q005", "sibling_text": "purifier operation", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Operation, types, throughput & 24V control loss", "cross_family": false }, { "answer_id": "PURIF-172-003", "score": 0.6817529797554016, "sibling_score": 0.6817529797554016, "answer_score": null, "sibling_qid": "KOC-2025-11-1970-Q002", "sibling_text": "purifier alcap water transducer working", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "ALCAP and the water transducer", "cross_family": false }, { "answer_id": "PUR-DSL-001", "score": 0.643131673336029, "sibling_score": 0.643131673336029, "answer_score": 0.46248493790626527, "sibling_qid": "MUM-2024-06-0958-Q001", "sibling_text": "manual desludging of purifier", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Manual desludging of a purifier — the step-by-step procedure", "cross_family": false } ] }, { "qid": "KOC-2022-03-2029-Q007", "text": "safety valve seting Ans) he needs to listen about compresion nut , ring [ distance btwnn nut and valve body ] and make cmpression ring , Then pad lock after the setting. No crossquestions in any questions Internal : no question", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2022-03-2029", "tray": "review", "candidates": [ { "answer_id": "ECON-EGB-004", "score": 0.7512611150741577, "sibling_score": 0.7512611150741577, "answer_score": 0.5595463216304779, "sibling_qid": "KOL-2026-02-3912-Q003", "sibling_text": "safety valve setting procedure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Safety-valve setting after overhaul & why set higher than the boiler", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.7463410496711731, "sibling_score": 0.7463410496711731, "answer_score": null, "sibling_qid": "MUM-2026-05-2994-Q003", "sibling_text": "how do you set the safety valve in front of surveyor", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.7413954138755798, "sibling_score": 0.7413954138755798, "answer_score": null, "sibling_qid": "MUM-2026-02-1255-Q006", "sibling_text": "setting of safety valve", "sibling_family": "Boilers - 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Statutory", "via": "sibling", "answer_title": "Preparing the ship for the Safety Equipment survey as Second Engineer", "cross_family": false } ] }, { "qid": "KOC-2022-04-0070-Q013", "text": "Which ship?contianer", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2022-04-0070", "tray": "review", "candidates": [ { "answer_id": "DB-TORBOX-B-003", "score": 0.7762815952301025, "sibling_score": 0.7762815952301025, "answer_score": null, "sibling_qid": "CHE-2026-04-0150-Q001", "sibling_text": "type of ship sailed container", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "What is a torsion box — definition and construction", "cross_family": false }, { "answer_id": "DBTB-A-002", "score": 0.6974517107009888, "sibling_score": 0.6974517107009888, "answer_score": null, "sibling_qid": "KOL-2025-09-1058-Q002", "sibling_text": "type of ship sailed special const in a container ship where fitted what exactly does why not in bulk carrier", "sibling_family": "", "via": "sibling", "answer_title": "Double-bottom tanks: purpose, advantages, disadvantages and stability effect", "cross_family": false }, { "answer_id": "DB-TORBOX-B-001", "score": 0.6916909217834473, "sibling_score": 0.6916909217834473, "answer_score": null, "sibling_qid": "KOL-2023-09-0767-Q001", "sibling_text": "which ship sailed what is different in container ships than others torsion box construction where to where", "sibling_family": "", "via": "sibling", "answer_title": "Torsion box — purpose, location, and why container ships", "cross_family": false } ] }, { "qid": "KOC-2022-04-0072-Q003", "text": "Type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2022-04-0072", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8366292119026184, "sibling_score": 0.8366292119026184, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8018827438354492, "sibling_score": 0.8018827438354492, "answer_score": 0.5473108768463134, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8003316521644592, "sibling_score": 0.8003316521644592, "answer_score": 0.5218650102615356, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "KOC-2022-04-0072-Q004", "text": "Function name plus syllabus ,he wanted to hear ship construction, naval arch and all", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2022-04-0072", "tray": "review", "candidates": [ { "answer_id": "IMO-CODES-P03-001", "score": 0.7231137752532959, "sibling_score": 0.7231137752532959, "answer_score": null, "sibling_qid": "KOC-2026-03-0886-Q002", "sibling_text": "what is function 3 subjects involved he want naval architecture and ship construction first", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Important IMO conventions and codes: parent links", "cross_family": true }, { "answer_id": "GA-GI-DWG-004", "score": 0.6331122517585754, "sibling_score": 0.6331122517585754, "answer_score": 0.4519191741943359, "sibling_qid": "KOC-2022-04-0070-Q016", "sibling_text": "structural related plans for ship", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "4. Which structural drawings or plans are referred to for a ship?", "cross_family": true }, { "answer_id": "GA-GI-DWG-003", "score": 0.6279422044754028, "sibling_score": 0.6279422044754028, "answer_score": null, "sibling_qid": "KOL-2025-07-1000-Q002", "sibling_text": "sheer plan for naval structure", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "3. What is a sheer plan and why is it needed in drydock?", "cross_family": true } ] }, { "qid": "KOC-2022-04-0072-Q006", "text": "Annex 1 discharge criteria", "family": "MARPOL - Annex I (Oil)", "subtopic": "Oil Discharge Criteria", "tid": "KOC-2022-04-0072", "tray": "review", "candidates": [ { "answer_id": "ODC-001", "score": 0.7852872014045715, "sibling_score": 0.7852872014045715, "answer_score": null, "sibling_qid": "KOL-2023-10-0780-Q004", "sibling_text": "discharge criteria as per annex 1", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "MARPOL Annex I oil discharge criteria — the overall framework", "cross_family": false }, { "answer_id": "CHEM-PA-005", "score": 0.7408705353736877, "sibling_score": 0.7408705353736877, "answer_score": null, "sibling_qid": "MUM-2026-03-2940-Q003", "sibling_text": "annex 2 discharge criteria", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Discharge criteria for NLS cargo residues, by 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"tray": "new", "candidates": [ { "answer_id": "LL-CONV-P04-002", "score": 0.5143020153045654, "sibling_score": 0.5143020153045654, "answer_score": null, "sibling_qid": "KOL-2024-11-0880-Q001", "sibling_text": "free board purpose", "sibling_family": "", "via": "sibling", "answer_title": "Load Line Convention, certificates, assigning authority and detention risk", "cross_family": false }, { "answer_id": "BULWARK-003", "score": 0.48546546697616577, "sibling_score": 0.48546546697616577, "answer_score": 0.28237110674381255, "sibling_qid": "MUM-2020-08-0003-Q006", "sibling_text": "freeing port and purpose", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "What are freeing ports in a bulwark, and what is their purpose?", "cross_family": false }, { "answer_id": "RES-BUOY-005", "score": 0.42205333709716797, "sibling_score": 0.42205333709716797, "answer_score": null, "sibling_qid": "KOC-2022-02-0062-Q004", "sibling_text": "freeboard purpose reserve buoyancy pupose", "sibling_family": "", "via": "sibling", "answer_title": "Freeboard and reserve buoyancy — the relationship", "cross_family": false } ] }, { "qid": "KOC-2022-05-0074-Q006", "text": "young seafare as a send eng how will take care him?", "family": "MLC", "subtopic": "MLC / DMLC / Work-Rest", "tid": "KOC-2022-05-0074", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-004", "score": 0.6614723205566406, "sibling_score": 0.6614723205566406, "answer_score": null, "sibling_qid": "KOC-2022-01-0051-Q006", "sibling_text": "young seafarer as 2e what to ensure explained him about the mlc work and rest hours and also the night work criteria as second eng will not allow young seafarer to do critical jobs alone", "sibling_family": "MLC", "via": "sibling", "answer_title": "Young seafarers — minimum age, night work, and what the 2/E must ensure", "cross_family": false }, { "answer_id": "CRANE-ER-001", "score": 0.5026624202728271, "sibling_score": 0.5026624202728271, "answer_score": null, "sibling_qid": "MUM-2026-05-2998-Q004", "sibling_text": "just joined as a second eng and 20 days long sailing and at port you have m e decarb how will you make sure your er crane is working fine", "sibling_family": "Fault Diagnosis & 2/E Actions", "via": "sibling", "answer_title": "Pre-use safety, maintenance & certification checks on the ER crane", "cross_family": true }, { "answer_id": "MLC-WRH-B-005", "score": 0.4888569414615631, "sibling_score": 0.4888569414615631, "answer_score": null, "sibling_qid": "MUM-2022-10-0054-Q013", "sibling_text": "work n rest hrs not maintained frequently onboard ship as 2nd engr how u will take measures", "sibling_family": "MLC", "via": "sibling", "answer_title": "Repeated rest-hour violations — your action as Second Engineer, and who may permit the work", "cross_family": false } ] }, { "qid": "KOC-2022-05-0075-Q004", "text": "Enclosed space entry gas limits and checks?", "family": "Risk & Safety Management", "subtopic": "Enclosed Space Entry", "tid": 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"cross_family": false }, { "answer_id": "ESE-P02-001", "score": 0.7226840853691101, "sibling_score": 0.7226840853691101, "answer_score": null, "sibling_qid": "KOC-2021-07-0018-Q004", "sibling_text": "enclosed space entry condition answer 21 oxygen hc gas less than 1 lel toxic gases less than 50 tlv what device use to check toxic gases he needs to hear dragen tupe", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "ESE-P02-01. 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Explain Title 2", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOC-2022-07-0080", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.6639862656593323, "sibling_score": 0.6639862656593323, "answer_score": 0.23926920890808104, "sibling_qid": "KOC-2026-05-2135-Q011", "sibling_text": "mlc titles explain title 1 explain dmlc part 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "ISM-2E-A-001", "score": 0.43778014183044434, "sibling_score": 0.43778014183044434, "answer_score": null, "sibling_qid": "CHE-2026-04-0163-Q018", "sibling_text": "role of 2e in mlc and ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Roles, duties and responsibilities of a Second Engineer under ISM/SMS", "cross_family": true }, { "answer_id": "SOLAS-CH-003", "score": 0.4338165819644928, "sibling_score": 0.4338165819644928, "answer_score": null, "sibling_qid": "KOC-2025-05-2065-Q008", "sibling_text": "explain solas chapter 2 of 2", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS Chapter II-2 - fire protection, detection and extinction", "cross_family": true } ] }, { "qid": "KOC-2022-07-0080-Q011", "text": "DMLC 1 and DMLC 2", "family": "MLC", "subtopic": "MLC / DMLC / Work-Rest", "tid": "KOC-2022-07-0080", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.7766436338424683, "sibling_score": 0.7766436338424683, "answer_score": 0.2835543632507324, "sibling_qid": "MUM-2026-01-0673-Q004", "sibling_text": "dmlc 1 and dmlc 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "SB-RATIO-002", "score": 0.25008852034807205, "sibling_score": null, "answer_score": 0.25008852034807205, "sibling_qid": "", "sibling_text": "differentiate short long super long and ultra long stroke engines with the exact ratio of each what is s and what is l k short stroke k98mc c 980 2 400 2 45 k98mc 980 2 660 2 71 k80mc c 800 2 300 2 88 l long stroke l70mc 700 2 268 3 24 l80mc 800 2 592 3 24 l70mc c 700 2 360 3 37", "sibling_family": "", "via": "answer_title", "answer_title": "Differentiate short, long, super-long and ultra-long stroke engines, with the exact ratio of each. What is S and what is L?", "cross_family": false }, { "answer_id": "ENG-NOM-006", "score": 0.24581466168165206, "sibling_score": null, "answer_score": 0.24581466168165206, "sibling_qid": "", "sibling_text": "short form asks smc c lmc and me vs mc quickly smc c super long stroke man programme camshaft controlled compact lmc l long stroke the l is the stroke letter not a control or compact letter", "sibling_family": "", "via": "answer_title", "answer_title": "Short-form asks: SMC-C, LMC, and ME vs MC quickly", "cross_family": false } ] }, { "qid": "KOC-2022-07-0966-Q003", "text": "Main Engine specification", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOC-2022-07-0966", "tray": "review", "candidates": [ { "answer_id": "ENG-NOM-006", "score": 0.7966569662094116, "sibling_score": 0.7966569662094116, "answer_score": null, "sibling_qid": "CHE-2026-05-0585-Q001", "sibling_text": "main engine specification complete", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Short-form asks: SMC-C, LMC, and ME vs MC quickly", "cross_family": false }, { "answer_id": "ALT-MTN-B-001", "score": 0.686126708984375, "sibling_score": 0.686126708984375, "answer_score": null, "sibling_qid": "MUM-2026-02-1281-Q001", "sibling_text": "main engine specification mc c", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Routine onboard alternator maintenance checks", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.6701682806015015, "sibling_score": 0.6701682806015015, "answer_score": null, "sibling_qid": "CHE-2026-08-3865-Q007", "sibling_text": "main engine specifications", "sibling_family": "2-Stroke - 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Components (Other)", "via": "sibling", "answer_title": "Cold repair of cracked cast-iron parts: liner, pump/valve cage, loose bearing seat", "cross_family": false } ] }, { "qid": "KOC-2022-07-0966-Q025", "text": "Crane hook material?", "family": "Workshop & Welding", "subtopic": "Forge / Forging", "tid": "KOC-2022-07-0966", "tray": "review", "candidates": [ { "answer_id": "CRANE-ER-008", "score": 0.7589004039764404, "sibling_score": 0.7589004039764404, "answer_score": 0.637716993689537, "sibling_qid": "MUM-2026-05-3139-Q005", "sibling_text": "engine room crane hook material", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "ER crane hook: material & safety considerations", "cross_family": true }, { "answer_id": "CRANE-ER-005", "score": 0.6358739137649536, "sibling_score": 0.6358739137649536, "answer_score": null, "sibling_qid": "KOL-2026-07-4281-Q001", "sibling_text": "deficiency of crane hook", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Limit switches, cut-outs & response to crane faults or failure", "cross_family": true }, { "answer_id": "ERC-345-003", "score": 0.6222233772277832, "sibling_score": 0.6222233772277832, "answer_score": null, "sibling_qid": "KOL-2026-02-1185-Q002", "sibling_text": "er crane hook safety remarks", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Pre-lift checks and maintenance", "cross_family": true } ] }, { "qid": "KOC-2022-07-0968-Q009", "text": "Maine engine ready to start for turning On air , no interlocks and alarms present , but not turning on air ?", "family": "2-Stroke - Operations & Casualty", "subtopic": "Slow Turning vs Blow Through", "tid": "KOC-2022-07-0968", "tray": "review", "candidates": [ { "answer_id": "SAE-388-003", "score": 0.7173724174499512, "sibling_score": 0.7173724174499512, "answer_score": null, "sibling_qid": "MUM-2026-02-2919-Q009", "sibling_text": "main engine starting air line hot", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "The starting air line is getting hot, or a starting valve is leaking — your action as 2nd Engineer?", "cross_family": false }, { "answer_id": "SAV-005", "score": 0.6878240704536438, "sibling_score": 0.6878240704536438, "answer_score": null, "sibling_qid": "KOC-2021-11-1770-Q006", "sibling_text": "auxiliary engine not turning on air only oscillates not the one with starter type he was asking about starting air valve mounted type cleared both functions", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "How air is admitted, and faults that stop starting air admission", "cross_family": true }, { "answer_id": "ME-NOSTART-001", "score": 0.6564573645591736, "sibling_score": 0.6564573645591736, "answer_score": 0.5445212185382843, "sibling_qid": "MUM-2026-04-2669-Q003", "sibling_text": "ae starting on air not on fuel reason nd actions", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Starts / turns on air but will not start on fuel — causes, checks and rectification", "cross_family": true } ] }, { "qid": "KOC-2022-07-1789-Q009", "text": "Globe valve drawing", "family": "General Marine Engineering", "subtopic": "Glove Valve", "tid": "KOC-2022-07-1789", "tray": "review", "candidates": [ { "answer_id": "GV-330-001", "score": 0.746615469455719, "sibling_score": 0.746615469455719, "answer_score": 0.5328316777944565, "sibling_qid": "KOC-2024-05-1840-Q003", "sibling_text": "gate valve drawing", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Draw and explain the gate valve — construction, main parts, operation & onboard use", "cross_family": false }, { "answer_id": "GV-330-002", "score": 0.6749524474143982, "sibling_score": 0.6749524474143982, "answer_score": null, "sibling_qid": "KOL-2026-03-3935-Q002", "sibling_text": "overhauling of globe valve", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Gate valve overhaul, checks & the stuck / not-operating valve", "cross_family": false }, { "answer_id": "VIT-MECH-A-002", "score": 0.6558310389518738, "sibling_score": 0.6558310389518738, "answer_score": null, "sibling_qid": "KOL-2016-10-1243-Q001", "sibling_text": "draw vit diagram from control valve", "sibling_family": "2-Stroke - 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What is IACS and what are its functions?", "cross_family": false }, { "answer_id": "IEEC-002", "score": 0.4971628785133362, "sibling_score": 0.4971628785133362, "answer_score": null, "sibling_qid": "KOL-2018-06-0184-Q003", "sibling_text": "ieec", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "IEEC validity and the conditions under which it changes", "cross_family": true }, { "answer_id": "IEEC-001", "score": 0.4971306324005127, "sibling_score": 0.4971306324005127, "answer_score": null, "sibling_qid": "MUM-2022-11-2715-Q003", "sibling_text": "ieec", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Basis, requirement and prerequisites for issuing an IEEC", "cross_family": true } ] }, { "qid": "KOC-2022-08-0081-Q006", "text": "lockout tagout in drydock", "family": "Risk & Safety Management", "subtopic": "LOTO / Isolation Permit", "tid": "KOC-2022-08-0081", "tray": "new", "candidates": [ { "answer_id": "DDHSC-001", "score": 0.5472882986068726, "sibling_score": 0.5472882986068726, "answer_score": 0.401366762816906, "sibling_qid": "KOC-2025-07-1925-Q011", "sibling_text": "drydock checks as 2e as soon as dock is empty", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Ship is in drydock and the dock is pumped dry — what checks do you carry out as Second Engineer?", "cross_family": true }, { "answer_id": "DDI-003", "score": 0.5309955477714539, "sibling_score": 0.5309955477714539, "answer_score": null, "sibling_qid": "KOL-2019-01-3208-Q001", "sibling_text": "safety precaution i dry dock", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Before flooding the dock, what checks do you carry out — in the engine room, and on the propeller, rudder and stern tube?", "cross_family": true }, { "answer_id": "DUS-P3-01", "score": 0.5221850872039795, "sibling_score": 0.5221850872039795, "answer_score": null, "sibling_qid": "KOC-2024-08-0399-Q009", "sibling_text": "things only can be done in drydock", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Why do we drydock a ship — the purpose, and at what interval?", "cross_family": true } ] }, { "qid": "KOC-2022-08-0082-Q005", "text": "Which company? What type vessel? Said oil tanker", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2022-08-0082", "tray": "review", "candidates": [ { "answer_id": "COT-01", "score": 0.7435957789421082, "sibling_score": 0.7435957789421082, "answer_score": 0.5004661798477172, "sibling_qid": "MUM-2026-02-0757-Q001", "sibling_text": "sanjib ship type oil tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Oil-tanker types, definitions and cargo capability", "cross_family": false }, { "answer_id": "IBC-BCH-B-004", "score": 0.7009105682373047, "sibling_score": 0.7009105682373047, "answer_score": null, "sibling_qid": "MUM-2026-03-0859-Q001", "sibling_text": "pre sea and vessel type chemical tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Certificate of Fitness and MARPOL Annex II in practice", "cross_family": false }, { "answer_id": "BCH-IBC-A-001", "score": 0.6812536716461182, "sibling_score": 0.6812536716461182, "answer_score": null, "sibling_qid": "CHE-2026-03-0128-Q001", "sibling_text": "type of chemical tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type 1, Type 2 and Type 3 chemical tankers — the ship-type classification", "cross_family": false } ] }, { "qid": "KOC-2022-08-0082-Q008", "text": "Which all gases present, limits??", "family": "Risk & Safety Management", "subtopic": "Enclosed Space Entry", "tid": "KOC-2022-08-0082", "tray": "review", "candidates": [ { "answer_id": "PR-SAFE-A-002", "score": 0.6919457912445068, "sibling_score": 0.6919457912445068, "answer_score": null, "sibling_qid": "KOC-2023-10-0235-Q004", "sibling_text": "limits for h2s co hc o2", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Pump-room fixed gas detection and atmosphere monitoring", "cross_family": true }, { "answer_id": "ESE-P01-010", "score": 0.6569640040397644, "sibling_score": 0.6569640040397644, "answer_score": null, "sibling_qid": "KOC-2024-11-0445-Q006", "sibling_text": "gas limits for tanker entry lower and upper limits of oxygen", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "Oxygen percentage limits for enclosed-space entry", "cross_family": false }, { "answer_id": "FLD-601-003", "score": 0.6516529321670532, "sibling_score": 0.6516529321670532, "answer_score": null, "sibling_qid": "KOC-2026-02-0829-Q005", "sibling_text": "gas limits", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What are LEL, LFL, UFL and HFL, and what are their values?", "cross_family": true } ] }, { "qid": "KOC-2022-08-0084-Q001", "text": "( type sailed : oil tankers)", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2022-08-0084", "tray": "review", "candidates": [ { "answer_id": "COT-01", "score": 0.8057987093925476, "sibling_score": 0.8057987093925476, "answer_score": 0.5651824325323105, "sibling_qid": "KOC-2026-04-0892-Q003", "sibling_text": "type of ship sailed tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Oil-tanker types, definitions and cargo capability", "cross_family": false }, { "answer_id": "LPG-LNG-009", "score": 0.7248680591583252, "sibling_score": 0.7248680591583252, "answer_score": null, "sibling_qid": "CHE-2026-04-0164-Q001", "sibling_text": "type of ship sailed lpg carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Gas-carrier fundamentals and ship-specific traps", "cross_family": false }, { "answer_id": "TKR-TYPE-001", "score": 0.7240273952484131, "sibling_score": 0.7240273952484131, "answer_score": 0.530258709192276, "sibling_qid": "KOL-2023-02-0719-Q001", "sibling_text": "type of ship sailed i said oil product tanker constructional difference between crude oil and product tanker", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "1. Crude oil tanker vs product tanker / carrier — construction and cargo-area differences", "cross_family": true } ] }, { "qid": "KOC-2022-08-0084-Q002", "text": "Mlc title 4", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOC-2022-08-0084", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.5251015424728394, "sibling_score": 0.5251015424728394, "answer_score": 0.2760246619582176, "sibling_qid": "KOC-2026-05-2135-Q011", "sibling_text": "mlc titles explain title 1 explain dmlc part 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "MLC-WRH-B-006", "score": 0.456143856048584, "sibling_score": 0.456143856048584, "answer_score": null, "sibling_qid": "MUM-2026-07-3680-Q005", "sibling_text": "what is mlc certificate under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false }, { "answer_id": "MLC-WRH-B-007", "score": 0.4260656535625458, "sibling_score": 0.4260656535625458, "answer_score": null, "sibling_qid": "MUM-2026-01-0701-Q002", "sibling_text": "detainable deficiency of mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false } ] }, { "qid": "KOC-2022-08-0087-Q009", "text": "MLC titles explain title 2", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOC-2022-08-0087", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.6632161736488342, "sibling_score": 0.6632161736488342, "answer_score": 0.2390563189983368, "sibling_qid": "KOC-2026-05-2135-Q011", "sibling_text": "mlc titles explain title 1 explain dmlc part 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "ISM-2E-A-001", "score": 0.4372868537902832, "sibling_score": 0.4372868537902832, "answer_score": null, "sibling_qid": "CHE-2026-04-0163-Q018", "sibling_text": "role of 2e in mlc and ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Roles, duties and responsibilities of a Second Engineer under ISM/SMS", "cross_family": true }, { "answer_id": "SOLAS-CH-003", "score": 0.4329461455345154, "sibling_score": 0.4329461455345154, "answer_score": null, "sibling_qid": "KOC-2025-05-2065-Q008", "sibling_text": "explain solas chapter 2 of 2", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS Chapter II-2 - fire protection, detection and extinction", "cross_family": true } ] }, { "qid": "KOC-2022-08-0087-Q010", "text": "Dmlc 1 and 2", "family": "MLC", "subtopic": "MLC / DMLC / Work-Rest", "tid": "KOC-2022-08-0087", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.7911224365234375, "sibling_score": 0.7911224365234375, "answer_score": 0.2803786963224411, "sibling_qid": "MUM-2026-04-0877-Q003", "sibling_text": "dmlc 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "DCP-PPC-003", "score": 0.24609506130218506, "sibling_score": null, "answer_score": 0.24609506130218506, "sibling_qid": "", "sibling_text": "c3 dcp general working advantages disadvantages common issues", "sibling_family": "", "via": "answer_title", "answer_title": "C3 — DCP — General Working, Advantages, Disadvantages & Common Issues", "cross_family": false }, { "answer_id": "XFMR-THY-G-002", "score": 0.2455635964870453, "sibling_score": null, "answer_score": 0.2455635964870453, "sibling_qid": "", "sibling_text": "2 transformer parallel operation", "sibling_family": "", "via": "answer_title", "answer_title": "2. 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Transformer parallel operation", "cross_family": false } ] }, { "qid": "KOC-2022-08-0088-Q011", "text": "MLC Titles. Internal Paul sir", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOC-2022-08-0088", "tray": "new", "candidates": [ { "answer_id": "TNK-SAFE-BF26-002", "score": 0.484672486782074, "sibling_score": 0.484672486782074, "answer_score": null, "sibling_qid": "KOC-2023-10-0235-Q010", "sibling_text": "ig safeties internal paul sir", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What safeties are provided on the cargo tanks of an oil, crude or chemical tanker?", "cross_family": true }, { "answer_id": "MLC-WRH-B-001", "score": 0.4759082794189453, "sibling_score": 0.4759082794189453, "answer_score": 0.23496378660202025, "sibling_qid": "KOC-2026-05-2135-Q011", "sibling_text": "mlc titles explain title 1 explain dmlc part 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "ISPS-P03-001", "score": 0.46469998359680176, "sibling_score": 0.46469998359680176, "answer_score": null, "sibling_qid": "KOC-2023-11-0243-Q011", "sibling_text": "cso duties internal paul sir", "sibling_family": "ISPS", "via": "sibling", "answer_title": "Company Security Officer (CSO): duties, functions and responsibilities", "cross_family": true } ] }, { "qid": "KOC-2022-08-0973-Q005", "text": "V-belt nomenclature ( not types). Like he wants want does A B and numbers indicate", "family": "Auxiliary Equipment", "subtopic": "Belt Drive / V-Belt", "tid": "KOC-2022-08-0973", "tray": "new", "candidates": [ { "answer_id": "REEF-COMP-005", "score": 0.5319814682006836, "sibling_score": 0.5319814682006836, "answer_score": 0.3692497968673706, "sibling_qid": "KOL-2021-02-3375-Q007", "sibling_text": "why v belt is used how many usually fitted what specifications are on that name it and explain", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "V-belt drive on reefer compressors — why, and checking condition, alignment, tension, replacement", "cross_family": true }, { "answer_id": "BWM-D1D2-P02-002", "score": 0.49864763021469116, "sibling_score": 0.49864763021469116, "answer_score": null, "sibling_qid": "KOC-2023-01-0136-Q005", "sibling_text": "bwm d1 d2 etc", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "BWM Section D standards — D-1 to D-5 overview and how they differ", "cross_family": true }, { "answer_id": "BRG-NOM-001", "score": 0.4860451817512512, "sibling_score": 0.4860451817512512, "answer_score": 0.3930801674723625, "sibling_qid": "MUM-2026-06-3447-Q002", "sibling_text": "bearing meaning like 6205", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Bearing Numbers, Suffixes and What to State When Ordering", "cross_family": false } ] }, { "qid": "KOC-2022-08-1187-Q002", "text": "Hazardous Classification and name and explanation?", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOC-2022-08-1187", "tray": "new", "candidates": [ { "answer_id": "RA-MGMT-A-001", "score": 0.6134027242660522, "sibling_score": 0.6134027242660522, "answer_score": null, "sibling_qid": "KOL-2024-07-3702-Q002", "sibling_text": "what is hazard", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "What is risk, what is hazard, and what is risk assessment?", "cross_family": false }, { "answer_id": "HKC-IHM-B-004", "score": 0.5729784965515137, "sibling_score": 0.5729784965515137, "answer_score": null, "sibling_qid": "MUM-2026-05-3085-Q005", "sibling_text": "what is inventory of hazardous material type of hazardous material", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What hazardous materials, including asbestos, are controlled through the IHM?", "cross_family": false }, { "answer_id": "HV-SYS-P04-001", "score": 0.5724139213562012, "sibling_score": 0.5724139213562012, "answer_score": null, "sibling_qid": "KOC-2022-08-1188-Q003", "sibling_text": "hazards of hv", "sibling_family": "", "via": "sibling", "answer_title": "HV-SYS-P04-001 - HV hazards, advantages and safeties", "cross_family": false } ] }, { "qid": "KOC-2022-08-1187-Q006", "text": "Two generator with other same power but different current explain ?", "family": "Electrical - Generator & Alternator", "subtopic": "Load Sharing Imbalance", "tid": "KOC-2022-08-1187", "tray": "review", "candidates": [ { "answer_id": "GEN-LSI-B-001", "score": 0.8435172438621521, "sibling_score": 0.8435172438621521, "answer_score": 0.5293104827404022, "sibling_qid": "KOL-2023-01-2634-Q001", "sibling_text": "two generator running with same load but different current reason", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01. Two alternators in parallel — same kW but different current and power factor: cause and correction", "cross_family": false }, { "answer_id": "LS-IMB-A-001", "score": 0.769123375415802, "sibling_score": 0.769123375415802, "answer_score": 0.5042164266109467, "sibling_qid": "KOL-2025-08-2819-Q001", "sibling_text": "two generators running parallel one taking more kw one taking less reasons", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Two paralleled generators sharing unequal load — cause and correction", "cross_family": false }, { "answer_id": "PF-C-002", "score": 0.5115817487239838, "sibling_score": null, "answer_score": 0.5115817487239838, "sibling_qid": "", "sibling_text": "two alternators in parallel same kw different power factor cause and action", "sibling_family": "", "via": "answer_title", "answer_title": "Two alternators in parallel — same kW, different power factor: cause and action", "cross_family": false } ] }, { "qid": "KOC-2022-08-1188-Q001", "text": "Type of ships sailed -LNG carriers", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2022-08-1188", "tray": "review", "candidates": [ { "answer_id": "LPG-LNG-009", "score": 0.8248593807220459, "sibling_score": 0.8248593807220459, "answer_score": 0.5312305450439453, "sibling_qid": "CHE-2026-04-0164-Q001", "sibling_text": "type of ship sailed lpg carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Gas-carrier fundamentals and ship-specific traps", "cross_family": false }, { "answer_id": "IGC-GAS-004", "score": 0.7253671884536743, "sibling_score": 0.7253671884536743, "answer_score": null, "sibling_qid": "KOL-2025-08-1014-Q002", "sibling_text": "type of ship sailed lpg classification of gas carriers of as per igc code", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Ship-type classification under the IGC Code — 1G / 2G / 2PG / 3G", "cross_family": true }, { "answer_id": "COT-01", "score": 0.7250112295150757, "sibling_score": 0.7250112295150757, "answer_score": null, "sibling_qid": "KOC-2026-04-0892-Q003", "sibling_text": "type of ship sailed tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Oil-tanker types, definitions and cargo capability", "cross_family": false } ] }, { "qid": "KOC-2022-08-1188-Q007", "text": "Working principle of zener barrier", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOC-2022-08-1188", "tray": "review", "candidates": [ { "answer_id": "EPC-P02-01", "score": 0.6795228719711304, "sibling_score": 0.6795228719711304, "answer_score": 0.5503489911556244, "sibling_qid": "MUM-2026-06-3633-Q006", "sibling_text": "how it works what is zener barrier applications of zener diode", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a zener diode? Draw its symbol, explain its working principle, and draw and explain its characteristic curve including the zener (breakdown) voltage.", "cross_family": false }, { "answer_id": "EPC-P02-03", "score": 0.6720350384712219, "sibling_score": 0.6720350384712219, "answer_score": 0.4917928159236908, "sibling_qid": "MUM-2026-07-3813-Q002", "sibling_text": "zener barrier full explanation every component", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Where is a zener diode used on board and why — voltage regulator, AVR, clipper — and explain one application in detail.", "cross_family": false }, { "answer_id": "HAZ-EX-B-001", "score": 0.6559317111968994, "sibling_score": 0.6559317111968994, "answer_score": null, "sibling_qid": "CHE-2026-03-0358-Q005", "sibling_text": "zener barrier working in intrinsically safe", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Intrinsically safe (Ex i) equipment — what it is, how it works, where it is used, how you identify it", "cross_family": false } ] }, { "qid": "KOC-2022-08-1188-Q008", "text": "Types of enclosures in hazardous areas", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOC-2022-08-1188", "tray": "new", "candidates": [ { "answer_id": "HAZ-EX-B-001", "score": 0.5820696949958801, "sibling_score": 0.5820696949958801, "answer_score": null, "sibling_qid": "KOC-2023-03-1237-Q003", "sibling_text": "how many types of enclosure protections are there name it explain all types what is intrinsically safe", "sibling_family": "", "via": "sibling", "answer_title": "Intrinsically safe (Ex i) equipment — what it is, how it works, where it is used, how you identify it", "cross_family": false }, { "answer_id": "EXD-EXI-A-002", "score": 0.5652046203613281, "sibling_score": 0.5652046203613281, "answer_score": null, "sibling_qid": "KOC-2023-12-1314-Q011", "sibling_text": "explosion proof enclosure", "sibling_family": "", "via": "sibling", "answer_title": "Ex d (flameproof / explosion-proof) — construction, shipboard applications and maintenance", "cross_family": false }, { "answer_id": "ESE-P01-002", "score": 0.544784665107727, "sibling_score": 0.544784665107727, "answer_score": null, "sibling_qid": "KOL-2020-10-3985-Q006", "sibling_text": "enclosed space other than cargo tanks and spaces in e r", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "Examples and shipboard locations of enclosed spaces", "cross_family": false } ] }, { "qid": "KOC-2022-08-1188-Q010", "text": "list all navigation equipment on bridge, briefly asked to tell about BNWAS and VDR", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "KOC-2022-08-1188", "tray": "new", "candidates": [ { "answer_id": "MIB-B-002", "score": 0.4976745843887329, "sibling_score": 0.4976745843887329, "answer_score": null, "sibling_qid": "KOC-2022-10-1202-Q005", "sibling_text": "ship security alert system vdr data s 9 igbt and scr difference 10 vfd paul sir boiler water level controller widas sensor working princple location testing", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Comparing IGBT, MOSFET, BJT and the thyristor family (SCR/GTO)", "cross_family": true }, { "answer_id": "UNL-330-001", "score": 0.4807594120502472, "sibling_score": 0.4807594120502472, "answer_score": null, "sibling_qid": "MUM-2026-05-3294-Q006", "sibling_text": "gmdss and gmdss equipment", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "What is the function of the main air compressor unloader?", "cross_family": false }, { "answer_id": "VOLT-SYS-008", "score": 0.46880412101745605, "sibling_score": 0.46880412101745605, "answer_score": null, "sibling_qid": "KOL-2022-07-2582-Q004", "sibling_text": "equipments on bridge supply voltage", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Why standard shipboard voltages: 440, 230/220, 110 and 24", "cross_family": true } ] }, { "qid": "KOC-2022-08-1189-Q002", "text": "Types of enclosures used in hazardous area", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOC-2022-08-1189", "tray": "new", "candidates": [ { "answer_id": "EXD-EXI-A-002", "score": 0.6031492352485657, "sibling_score": 0.6031492352485657, "answer_score": null, "sibling_qid": "KOC-2023-12-1314-Q011", "sibling_text": "explosion proof enclosure", "sibling_family": "", "via": "sibling", "answer_title": "Ex d (flameproof / explosion-proof) — construction, shipboard applications and maintenance", "cross_family": false }, { "answer_id": "HAZ-EX-B-001", "score": 0.601201057434082, "sibling_score": 0.601201057434082, "answer_score": null, "sibling_qid": "KOC-2023-03-1237-Q003", "sibling_text": "how many types of enclosure protections are there name it explain all types what is intrinsically safe", "sibling_family": "", "via": "sibling", "answer_title": "Intrinsically safe (Ex i) equipment — what it is, how it works, where it is used, how you identify it", "cross_family": false }, { "answer_id": "ESE-P01-002", "score": 0.5562847852706909, "sibling_score": 0.5562847852706909, "answer_score": null, "sibling_qid": "KOL-2020-10-3985-Q006", "sibling_text": "enclosed space other than cargo tanks and spaces in e r", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "Examples and shipboard locations of enclosed spaces", "cross_family": false } ] }, { "qid": "KOC-2022-08-1189-Q006", "text": "Tube light circuit-draw", "family": "Electrical - Distribution & MSB", "subtopic": "Lighting / Lamps", "tid": "KOC-2022-08-1189", "tray": "review", "candidates": [ { "answer_id": "ELEC-ELX-001", "score": 0.7203431129455566, "sibling_score": 0.7203431129455566, "answer_score": 0.4934893995523453, "sibling_qid": "KOL-2017-07-2141-Q006", "sibling_text": "circuit diagram of a household tubelight diagram to show", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Fluorescent and LED tube-light — choke and starter", "cross_family": true }, { "answer_id": "LT-SRC-012", "score": 0.6832088828086853, "sibling_score": 0.6832088828086853, "answer_score": 0.4202027827501297, "sibling_qid": "KOC-2024-11-1436-Q004", "sibling_text": "tube connection onboard how you will connect five lights with one switch draw circuit for that", "sibling_family": "", "via": "sibling", "answer_title": "General lighting-source residual: multi-lamp wiring, location & emergency-source SOLAS", "cross_family": false }, { "answer_id": "LT-SRC-009", "score": 0.6256620287895203, "sibling_score": 0.6256620287895203, "answer_score": 0.4995806753635406, "sibling_qid": "KOC-2026-09-2204-Q006", "sibling_text": "navigational light circuit draw and explain", "sibling_family": "Electrical - 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Explain and draw it, and how it controls the level", "cross_family": false } ] }, { "qid": "KOC-2022-08-1790-Q005", "text": "DG all units high temperature - all Causes", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Decarb / Balancing / High Exhaust Temperature", "tid": "KOC-2022-08-1790", "tray": "review", "candidates": [ { "answer_id": "AE-HOT-BLOW-006", "score": 0.7484312653541565, "sibling_score": 0.7484312653541565, "answer_score": 0.48539912700653076, "sibling_qid": "KOL-2024-05-3688-Q009", "sibling_text": "ae all unit high temperature reason", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Auxiliary engine all units exhaust temperature high — reasons", "cross_family": false }, { "answer_id": "EGTP-P02-007", "score": 0.720700204372406, "sibling_score": 0.720700204372406, "answer_score": 0.4635602802038193, "sibling_qid": "MUM-2026-07-3794-Q002", "sibling_text": "one unit temp high reasons", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "High Exhaust Temperature — One Unit vs All Units", "cross_family": false }, { "answer_id": "EXH-T-HI-001", "score": 0.6608994603157043, "sibling_score": 0.6608994603157043, "answer_score": 0.49811253547668455, "sibling_qid": "KOC-2026-05-0040-Q005", "sibling_text": "me exhaust temperature of all units high action reasons", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "All units exhaust temperature high — causes and actions", "cross_family": true } ] }, { "qid": "KOC-2022-08-1790-Q006", "text": "Replacement of a SW pipe being a 2E- pipe already in workshop- how is fabricated? - explained about pipe schedules as per IMPA, welding, jig preparation", "family": "Workshop & Welding", "subtopic": "Pipe Pressure Test", "tid": "KOC-2022-08-1790", "tray": "new", "candidates": [ { "answer_id": "PIPEFAB-001", "score": 0.6429261565208435, "sibling_score": 0.6429261565208435, "answer_score": 0.5128173410892486, "sibling_qid": "MUM-2025-06-2325-Q003", "sibling_text": "fw pipe is removed and need fabrication of new one procedure of the same", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "A damaged pipe has been removed — fabricate the new one: profiling an uneven/bent section and the instructions you give the 3/E or fitter", "cross_family": false }, { "answer_id": "PIPEFAB-011", "score": 0.5962675213813782, "sibling_score": 0.5962675213813782, "answer_score": 0.42077280282974244, "sibling_qid": "CHE-2026-09-3925-Q007", "sibling_text": "gi pipe which welding carried out", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Explain the repair procedure for a GI or GRP pipe, including welding a GI pipe", "cross_family": false }, { "answer_id": "PIPE-MAT-004", "score": 0.5906406044960022, "sibling_score": 0.5906406044960022, "answer_score": null, "sibling_qid": "KOC-2026-04-0895-Q012", "sibling_text": "what is schedule of pipe", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Pipe schedule and its relation to thickness, ID, OD", "cross_family": false } ] }, { "qid": "KOC-2022-08-1790-Q007", "text": "Types of flanges as per IMPA for ordering", "family": "Workshop & Welding", "subtopic": "Pipe Fabrication", "tid": "KOC-2022-08-1790", "tray": "new", "candidates": [ { "answer_id": "PIPEFAB-008", "score": 0.6455464959144592, "sibling_score": 0.6455464959144592, "answer_score": 0.47190691232681276, "sibling_qid": "KOL-2022-01-4004-Q006", "sibling_text": "difference in different types of flanges onboard", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "What are the different types of flange used on board, and how do they differ?", "cross_family": false }, { "answer_id": "PIPE-MAT-008", "score": 0.574065625667572, "sibling_score": 0.574065625667572, "answer_score": 0.48421784639358517, "sibling_qid": "KOL-2019-01-3204-Q005", "sibling_text": "flange difference between high pressure and low pressure pipe", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Identifying HP vs LP, and steam vs water, pipe flanges", "cross_family": false }, { "answer_id": "PIPEFAB-001", "score": 0.5032305121421814, "sibling_score": 0.5032305121421814, "answer_score": null, "sibling_qid": "KOL-2019-02-3213-Q008", "sibling_text": "how to prepare pipe having 90 bend n flanges", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "A damaged pipe has been removed — fabricate the new one: profiling an uneven/bent section and the instructions you give the 3/E or fitter", "cross_family": false } ] }, { "qid": "KOC-2022-08-1791-Q004", "text": "Fuel analysis report... Max values and what information does it give", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Quality / CCAI", "tid": "KOC-2022-08-1791", "tray": "new", "candidates": [ { "answer_id": "CATF-438-003", "score": 0.639319896697998, "sibling_score": 0.639319896697998, "answer_score": null, "sibling_qid": "KOL-2019-03-1868-Q002", "sibling_text": "excess catfines in fuel actions values for fuel analysis", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Bunker analysis shows high or excess cat fines — what is your action?", "cross_family": false }, { "answer_id": "NBAB-574-002", "score": 0.6097855567932129, "sibling_score": 0.6097855567932129, "answer_score": null, "sibling_qid": "KOC-2026-09-2185-Q005", "sibling_text": "fuel oil analysis report contents and limits", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Bunker analysis suggests used or burnt lubricating oil — which parameters and tests identify it?", "cross_family": true }, { "answer_id": "FQCC-583-A-001", "score": 0.5569052696228027, "sibling_score": 0.5569052696228027, "answer_score": null, "sibling_qid": "KOL-2019-01-1438-Q005", "sibling_text": "fuel oil property al and si ccai ash content permissible limits", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "CCAI — what it is, how it is calculated, and what it is really for", "cross_family": false } ] }, { "qid": "KOC-2022-08-1792-Q006", "text": "Boiler safety valve setting procedure", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2022-08-1792", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-001", "score": 0.8563655614852905, "sibling_score": 0.8563655614852905, "answer_score": null, "sibling_qid": "KOC-2026-05-0003-Q005", "sibling_text": "boiler safety valve setting procedure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.8240355849266052, "sibling_score": 0.8240355849266052, "answer_score": null, "sibling_qid": "MUM-2026-03-2935-Q013", "sibling_text": "boiler safety valve setting in presence of surveyor after survey", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.8080652356147766, "sibling_score": 0.8080652356147766, "answer_score": null, "sibling_qid": "KOC-2026-05-0034-Q010", "sibling_text": "boiler safety valve types and how safety valve is set complete procedures", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOC-2022-08-1792-Q007", "text": "Draw upper part of safety valve", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2022-08-1792", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.7190434336662292, "sibling_score": 0.7190434336662292, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q012", "sibling_text": "draw top part of improved high lift safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "MR-DS-PV-B-006", "score": 0.6142453551292419, "sibling_score": 0.6142453551292419, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q005", "sibling_text": "full bore safety valve diagram", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "6. Deck isolating valve, deck relief/safety devices, and cargo-tank pressure", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.5734004378318787, "sibling_score": 0.5734004378318787, "answer_score": null, "sibling_qid": "KOC-2026-05-2142-Q008", "sibling_text": "safety valve setting in front of surveyor", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false } ] }, { "qid": "KOC-2022-08-1792-Q012", "text": "Draw how globe valve spindle connected to valve lid", "family": "General Marine Engineering", "subtopic": "Glove Valve", "tid": "KOC-2022-08-1792", "tray": "new", "candidates": [ { "answer_id": "GV-330-001", "score": 0.6327226758003235, "sibling_score": 0.6327226758003235, "answer_score": 0.501669955253601, "sibling_qid": "KOC-2024-05-1840-Q003", "sibling_text": "gate valve drawing", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Draw and explain the gate valve — construction, main parts, operation & onboard use", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.5810614228248596, "sibling_score": 0.5810614228248596, "answer_score": null, "sibling_qid": "KOL-2025-07-1814-Q004", "sibling_text": "how spindle is fitted in exhaust valve", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": true }, { "answer_id": "GV-330-002", "score": 0.5794728398323059, "sibling_score": 0.5794728398323059, "answer_score": null, "sibling_qid": "KOL-2026-03-3935-Q002", "sibling_text": "overhauling of globe valve", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Gate valve overhaul, checks & the stuck / not-operating valve", "cross_family": false } ] }, { "qid": "KOC-2022-09-0089-Q004", "text": "Storm valve diagram", "family": "General Marine Engineering", "subtopic": "SDNR / SDR", "tid": "KOC-2022-09-0089", "tray": "review", "candidates": [ { "answer_id": "SDNR-SDR-003", "score": 0.8554866909980774, "sibling_score": 0.8554866909980774, "answer_score": 0.5092422902584076, "sibling_qid": "KOC-2026-04-0909-Q005", "sibling_text": "storm valve diagram", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Storm valve -- construction, type, operation as a screw-down non-return valve, and a broken spindle", "cross_family": false }, { "answer_id": "GV-330-001", "score": 0.6997965574264526, "sibling_score": 0.6997965574264526, "answer_score": 0.4961481928825378, "sibling_qid": "KOC-2025-07-1927-Q004", "sibling_text": "gate valve diagram", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Draw and explain the gate valve — construction, main parts, operation & onboard use", "cross_family": false }, { "answer_id": "SDNR-SDR-002", "score": 0.6713152527809143, "sibling_score": 0.6713152527809143, "answer_score": 0.45431046187877655, "sibling_qid": "KOC-2025-11-2083-Q005", "sibling_text": "sdnr valve diagram", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Draw and explain a screw-down non-return (SDNR) valve -- construction and working", "cross_family": false } ] }, { "qid": "KOC-2022-09-0090-Q005", "text": "Name of function appearing for", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOC-2022-09-0090", "tray": "review", "candidates": [ { "answer_id": "IMO-CODES-P03-002", "score": 0.7311404347419739, "sibling_score": 0.7311404347419739, "answer_score": null, "sibling_qid": "KOC-2026-04-0892-Q002", "sibling_text": "function name", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": true }, { "answer_id": "CHK-RM-001", "score": 0.5570123195648193, "sibling_score": 0.5570123195648193, "answer_score": null, "sibling_qid": "KOL-2025-05-3783-Q007", "sibling_text": "function of chock", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What are chocks? Function, types, where fitted and how placed — which have the biggest area, and how does the bedplate connect to the hull?", "cross_family": true }, { "answer_id": "CHK-330-001", "score": 0.556442141532898, "sibling_score": 0.556442141532898, "answer_score": null, "sibling_qid": "KOC-2022-05-1785-Q007", "sibling_text": "function of chock", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What is the purpose and function of main engine chocks?", "cross_family": true } ] }, { "qid": "KOC-2022-09-0091-Q001", "text": "Solas Chapter 14", "family": "Other Conventions", "subtopic": "Polar Code", "tid": "KOC-2022-09-0091", "tray": "review", "candidates": [ { "answer_id": "SOLAS-CH-014", "score": 0.6587949395179749, "sibling_score": 0.6587949395179749, "answer_score": 0.4542975425720215, "sibling_qid": "KOC-2022-10-0102-Q009", "sibling_text": "solas how many chapters what is the 14th chapter", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS Chapter XIV - Polar Code", "cross_family": true }, { "answer_id": "SOLAS-OVW-003", "score": 0.6447712779045105, "sibling_score": 0.6447712779045105, "answer_score": null, "sibling_qid": "KOL-2026-01-1161-Q011", "sibling_text": "solas chapter 14", "sibling_family": "", "via": "sibling", "answer_title": "SOLAS Chapter XIV — ships operating in polar waters (Polar Code)", "cross_family": false }, { "answer_id": "SOLAS-CH-012", "score": 0.6160432696342468, "sibling_score": 0.6160432696342468, "answer_score": null, "sibling_qid": "MUM-2020-08-0001-Q009", "sibling_text": "solas how many capters explain chapter 13 14", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS XI-1, XI-2 and XIII - safety, security and audit", "cross_family": true } ] }, { "qid": "KOC-2022-09-0091-Q004", "text": "HSSC", "family": "Surveys - Statutory", "subtopic": "HSSC", "tid": "KOC-2022-09-0091", "tray": "review", "candidates": [ { "answer_id": "HSSC-001", "score": 0.734515905380249, "sibling_score": 0.734515905380249, "answer_score": 0.35761715173721315, "sibling_qid": "MUM-2026-09-3989-Q009", "sibling_text": "hssc", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is HSSC — the Harmonised System of Survey and Certification? Explain the harmonised survey system and programme, and what the \"HSSC code\" is.", "cross_family": false }, { "answer_id": "OPRC-SALV-004", "score": 0.732132077217102, "sibling_score": 0.732132077217102, "answer_score": 0.28836381584405896, "sibling_qid": "MUM-2026-09-3965-Q002", "sibling_text": "hssc", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "HNS — two different conventions, and the OPRC connection", "cross_family": false }, { "answer_id": "HSSC-002", "score": 0.5078026652336121, "sibling_score": 0.5078026652336121, "answer_score": 0.2782139778137207, "sibling_qid": "KOC-2026-04-0916-Q010", "sibling_text": "harmonised system of survey and certification which surveys are not included in hssc", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What are the initial, annual, periodical and intermediate surveys under HSSC, which surveys are NOT included, and which conventions does the harmonised system cover?", "cross_family": false } ] }, { "qid": "KOC-2022-09-0092-Q003", "text": "Draw bulbous bow, explain construction of bulbous bow, what material is used?", "family": "", "subtopic": "Bulbous Bow", "tid": "KOC-2022-09-0092", "tray": "new", "candidates": [ { "answer_id": "PPS-230-006", "score": 0.4698219299316406, "sibling_score": 0.4698219299316406, "answer_score": 0.3423621103167534, "sibling_qid": "MUM-2026-02-0782-Q011", "sibling_text": "bulbous bow how it is connected to ship shape of bow", "sibling_family": "", "via": "sibling", "answer_title": "Fore-end / fore-peak structure: draw and describe", "cross_family": false }, { "answer_id": "DRG-B-009", "score": 0.4577399492263794, "sibling_score": 0.4577399492263794, "answer_score": null, "sibling_qid": "KOL-2020-09-0422-Q008", "sibling_text": "bowsing tackle", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Bowsing tackle and tricing pendant", "cross_family": false }, { "answer_id": "FWFB-P02-005", "score": 0.4464816153049469, "sibling_score": null, "answer_score": 0.4464816153049469, "sibling_qid": "", "sibling_text": "other members breast hook bulb angle cross tie margin coffin shoe plates breast hook horizontal triangular plate bracket at the bow and aft tying the two sides across the centreline at the stem helps resist panting forward bulb angle bulb flat stiffener a flat bar with a rounded bulb on one edge for added stiffness without a separate flange shell deck and bulkhead stiffening", "sibling_family": "", "via": "answer_title", "answer_title": "Other members: breast hook, bulb angle, cross tie, margin / coffin / shoe plates", "cross_family": false } ] }, { "qid": "KOC-2022-09-0093-Q003", "text": "Draw Rudder carrier bearing", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOC-2022-09-0093", "tray": "review", "candidates": [ { "answer_id": "TRS-002", "score": 0.6927110552787781, "sibling_score": 0.6927110552787781, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "PRE-TEN-001", "score": 0.6678631901741028, "sibling_score": 0.6678631901741028, "answer_score": null, "sibling_qid": "MUM-2026-06-3504-Q007", "sibling_text": "rudder carrier bearing removal procedure", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Pre-stressing and pre-tensioning in main-engine bolting", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.6398187875747681, "sibling_score": 0.6398187875747681, "answer_score": 0.46183947920799256, "sibling_qid": "CHE-2026-02-0110-Q006", "sibling_text": "how rudder weight is carried key ans i said carrier bearing how it carrying explain", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false } ] }, { "qid": "KOC-2022-09-0094-Q002", "text": "Type of ship sailed: Crude oil tanker", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2022-09-0094", "tray": "review", "candidates": [ { "answer_id": "COT-01", "score": 0.8368673920631409, "sibling_score": 0.8368673920631409, "answer_score": 0.574237498641014, "sibling_qid": "KOC-2026-04-0892-Q003", "sibling_text": "type of ship sailed tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Oil-tanker types, definitions and cargo capability", "cross_family": false }, { "answer_id": "IBC-BCH-B-004", "score": 0.7694190144538879, "sibling_score": 0.7694190144538879, "answer_score": null, "sibling_qid": "MUM-2026-05-3156-Q001", "sibling_text": "type of ships chemical tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Certificate of Fitness and MARPOL Annex II in practice", "cross_family": false }, { "answer_id": "LPG-LNG-009", "score": 0.7679885625839233, "sibling_score": 0.7679885625839233, "answer_score": null, "sibling_qid": "CHE-2026-04-0164-Q001", "sibling_text": "type of ship sailed lpg carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Gas-carrier fundamentals and ship-specific traps", "cross_family": false } ] }, { "qid": "KOC-2022-09-0094-Q010", "text": "What is flare?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Pyrotechnics / Flares", "tid": "KOC-2022-09-0094", "tray": "new", "candidates": [ { "answer_id": "PIPEFAB-012", "score": 0.42402946949005127, "sibling_score": 0.42402946949005127, "answer_score": 0.3170084774494171, "sibling_qid": "KOL-2018-04-3137-Q004", "sibling_text": "flaring tool", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "What is the purpose of a flaring tool?", "cross_family": true }, { "answer_id": "BFEYE-340-002", "score": 0.3982827663421631, "sibling_score": 0.3982827663421631, "answer_score": null, "sibling_qid": "KOL-2017-02-2112-Q004", "sibling_text": "what is flame eye it is", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Flame eye / photocell: function, working principle, photoelectric effect and types", "cross_family": true }, { "answer_id": "RES-MAG-004", "score": 0.3976627290248871, "sibling_score": 0.3976627290248871, "answer_score": null, "sibling_qid": "MUM-2022-11-1369-Q010", "sibling_text": "explain flashing procedure", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Field flashing — the procedure, where the battery connects, which terminal, and the precautions", "cross_family": true } ] }, { "qid": "KOC-2022-09-0094-Q011", "text": "6 degrees of freedom", "family": "SOLAS", "subtopic": "Ship Motions / Six Degrees of Freedom", "tid": "KOC-2022-09-0094", "tray": "new", "candidates": [ { "answer_id": "PAR-ROLL-001", "score": 0.6143219470977783, "sibling_score": 0.6143219470977783, "answer_score": null, "sibling_qid": "MUM-2022-08-0036-Q006", "sibling_text": "6 parametric rolling", "sibling_family": "", "via": "sibling", "answer_title": "01. What is parametric rolling?", "cross_family": false }, { "answer_id": "INCL-EXP-A-001", "score": 0.5335677862167358, "sibling_score": 0.5335677862167358, "answer_score": null, "sibling_qid": "MUM-2024-10-0211-Q007", "sibling_text": "6 inclining experiment", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "What is an inclining experiment?", "cross_family": false }, { "answer_id": "LOLL-P02-002", "score": 0.4969525933265686, "sibling_score": 0.4969525933265686, "answer_score": null, "sibling_qid": "MUM-2023-01-0083-Q006", "sibling_text": "6 angle of loll and how you will correct it", "sibling_family": "", "via": "sibling", "answer_title": "1. Correcting angle of loll — the ballasting sequence", "cross_family": false } ] }, { "qid": "KOC-2022-09-0095-Q005", "text": "rudder carrier bearing", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOC-2022-09-0095", "tray": "review", "candidates": [ { "answer_id": "TRS-002", "score": 0.7671073079109192, "sibling_score": 0.7671073079109192, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "PRE-TEN-001", "score": 0.7643868327140808, "sibling_score": 0.7643868327140808, "answer_score": null, "sibling_qid": "MUM-2026-06-3504-Q007", "sibling_text": "rudder carrier bearing removal procedure", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Pre-stressing and pre-tensioning in main-engine bolting", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.7134100794792175, "sibling_score": 0.7134100794792175, "answer_score": 0.49507756233215333, "sibling_qid": "CHE-2026-02-0110-Q006", "sibling_text": "how rudder weight is carried key ans i said carrier bearing how it carrying explain", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false } ] }, { "qid": "KOC-2022-09-0096-Q002", "text": "Safcon survey as 2/e", "family": "Surveys - 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Components (Other)", "via": "sibling", "answer_title": "From the readings: wear, wear rate, units and renewal limits", "cross_family": false }, { "answer_id": "CYL-LINER-P01-001", "score": 0.6205138564109802, "sibling_score": 0.6205138564109802, "answer_score": null, "sibling_qid": "KOL-2016-08-1230-Q001", "sibling_text": "liner calibration wear etc", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Carrying out main-engine liner calibration (gauging)", "cross_family": false } ] }, { "qid": "KOC-2022-09-1193-Q002", "text": "Brush less Alternator construction.. Type of winding connection.. Why star connected?", "family": "Electrical - Generator & Alternator", "subtopic": "Brushless Alternator", "tid": "KOC-2022-09-1193", "tray": "review", "candidates": [ { "answer_id": "SDC-001", "score": 0.7544109225273132, "sibling_score": 0.7544109225273132, "answer_score": 0.549516835808754, "sibling_qid": "KOC-2024-08-1378-Q010", "sibling_text": "why alternator is star connected", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Why is the alternator star connected and the motor delta connected?", "cross_family": false }, { "answer_id": "BRUSHALT-A-001", "score": 0.6844367980957031, "sibling_score": 0.6844367980957031, "answer_score": null, "sibling_qid": "MUM-2026-06-3522-Q007", "sibling_text": "brushless alternators construction", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01 · Working principle of the brushless alternator / brushless excitation systemHigh", "cross_family": false }, { "answer_id": "IR-TEST-305-005", "score": 0.6736680269241333, "sibling_score": 0.6736680269241333, "answer_score": null, "sibling_qid": "KOL-2018-11-2232-Q001", "sibling_text": "insulation resistance check in alternator where physically star connection fitted", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Star-point, HV alternator and NER context", "cross_family": false } ] }, { "qid": "KOC-2022-09-1193-Q003", "text": "In brush less alternator and exciter which is rotating? Armature or field?", "family": "Electrical - Generator & Alternator", "subtopic": "Brushless Alternator", "tid": "KOC-2022-09-1193", "tray": "review", "candidates": [ { "answer_id": "BRUSHALT-A-001", "score": 0.7626994252204895, "sibling_score": 0.7626994252204895, "answer_score": 0.5782443076372147, "sibling_qid": "KOL-2021-10-2502-Q002", "sibling_text": "brushless alternator where rotor exciter fitted how current going exciter to main rotor", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01 · Working principle of the brushless alternator / brushless excitation systemHigh", "cross_family": false }, { "answer_id": "AVR-EXC-G-002", "score": 0.6043743908405304, "sibling_score": null, "answer_score": 0.6043743908405304, "sibling_qid": "", "sibling_text": "brushless excitation how dc reaches the rotor avr senses terminal voltage and sets the dc to the stationary exciter field the exciter is inverted field stationary armature rotating on the shaft", "sibling_family": "", "via": "answer_title", "answer_title": "Brushless excitation: how DC reaches the rotor", "cross_family": false }, { "answer_id": "ALT-GEN-P04-006", "score": 0.5904475808143616, "sibling_score": null, "answer_score": 0.5904475808143616, "sibling_qid": "", "sibling_text": "armature and field behaviour under kw load armature stator three phase winding in most marine alternators field rotor winding or brushless exciter fed dc field creating the main flux", "sibling_family": "", "via": "answer_title", "answer_title": "Armature and field behaviour under kW load", "cross_family": false } ] }, { "qid": "KOC-2022-09-1194-Q012", "text": "FUND CONVENTION", "family": "Other Conventions", "subtopic": "CLC / Civil Liability", "tid": "KOC-2022-09-1194", "tray": "review", "candidates": [ { "answer_id": "CLC-CIV-A-005", "score": 0.8248043656349182, "sibling_score": 0.8248043656349182, "answer_score": 0.2876734435558319, "sibling_qid": "KOC-2024-02-0296-Q006", "sibling_text": "fund convention", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Fund Convention — IOPC and the Supplementary Fund", "cross_family": false }, { "answer_id": "CLC-CIV-A-006", "score": 0.7080309987068176, "sibling_score": 0.7080309987068176, "answer_score": null, "sibling_qid": "MUM-2026-07-3793-Q009", "sibling_text": "clc and fund convention", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Difference between CLC, the Fund and the Supplementary Fund", "cross_family": false }, { "answer_id": "AFS-309-001", "score": 0.5800964832305908, "sibling_score": 0.5800964832305908, "answer_score": null, "sibling_qid": "KOC-2022-01-0058-Q004", "sibling_text": "afs convention", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "The AFS Convention — what it is, why it came, what it controls", "cross_family": false } ] }, { "qid": "KOC-2022-09-1196-Q003", "text": "Explossion proof ?", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOC-2022-09-1196", "tray": "new", "candidates": [ { "answer_id": "EXD-EXI-A-001", "score": 0.5700920820236206, "sibling_score": 0.5700920820236206, "answer_score": 0.3800605461001396, "sibling_qid": "MUM-2026-02-0794-Q013", "sibling_text": "intrinsic safe and explosive proof difference", "sibling_family": "", "via": "sibling", "answer_title": "Ex i (intrinsically safe) vs Ex d (flameproof / explosion-proof) — the difference", "cross_family": false }, { "answer_id": "EXD-EXI-A-002", "score": 0.5585190057754517, "sibling_score": 0.5585190057754517, "answer_score": 0.40299798995256425, "sibling_qid": "KOC-2022-03-0069-Q004", "sibling_text": "explosion proof explain where in tanker", "sibling_family": "", "via": "sibling", "answer_title": "Ex d (flameproof / explosion-proof) — construction, shipboard applications and maintenance", "cross_family": false }, { "answer_id": "SAE-388-002", "score": 0.5366155505180359, "sibling_score": 0.5366155505180359, "answer_score": null, "sibling_qid": "MUM-2026-05-3195-Q008", "sibling_text": "starting air line explosion safeties", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "What causes a starting air line explosion, and how is it prevented?", "cross_family": false } ] }, { "qid": "KOC-2022-09-1197-Q005", "text": "Construction of DC generator", "family": "Electrical - Motors & Starters", "subtopic": "DC Machines", "tid": "KOC-2022-09-1197", "tray": "new", "candidates": [ { "answer_id": "AIR-GAP-001", "score": 0.588716447353363, "sibling_score": 0.588716447353363, "answer_score": null, "sibling_qid": "KOC-2023-07-0203-Q001", "sibling_text": "working of dc generator air gap importance in ac and dc gen", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "AG-1 — The air gap: what it is and why it matters", "cross_family": false }, { "answer_id": "DCMOT-CMU-B-004", "score": 0.5791440606117249, "sibling_score": 0.5791440606117249, "answer_score": null, "sibling_qid": "KOC-2025-10-1587-Q010", "sibling_text": "dc motor used on board function of dc motor mounted on top of generator governor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "The DC motor on the AE governor (the actuator)", "cross_family": false }, { "answer_id": "AVR-EXC-G-002", "score": 0.5730264186859131, "sibling_score": 0.5730264186859131, "answer_score": null, "sibling_qid": "KOL-2025-08-2826-Q010", "sibling_text": "avr construction how it generates dc supply to dc exciter", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Brushless excitation: how DC reaches the rotor", "cross_family": true } ] }, { "qid": "KOC-2022-09-1793-Q006", "text": "Boiler safety valve pressure setting and top part diagram", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2022-09-1793", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-001", "score": 0.784735381603241, "sibling_score": 0.784735381603241, "answer_score": null, "sibling_qid": "CHE-2026-09-3931-Q006", "sibling_text": "boiler safety valve pressure setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.7670634984970093, "sibling_score": 0.7670634984970093, "answer_score": null, "sibling_qid": "CHE-2026-09-3919-Q009", "sibling_text": "boiler safety valve setting in front of surveyor first and second safety valve pressure difference", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.7414364814758301, "sibling_score": 0.7414364814758301, "answer_score": null, "sibling_qid": "CHE-2026-05-0583-Q002", "sibling_text": "boiler safety valve lifting pressure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOC-2022-09-1793-Q007", "text": "EGB uptake fire", "family": "Boilers - Operations & Firing", "subtopic": "Uptake Fire", "tid": "KOC-2022-09-1793", "tray": "review", "candidates": [ { "answer_id": "UPT-FIRE-003", "score": 0.7421780228614807, "sibling_score": 0.7421780228614807, "answer_score": 0.36095309406518933, "sibling_qid": "KOC-2024-06-1843-Q007", "sibling_text": "egb uptake fire actions", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Fire in the exhaust gas boiler or economiser — actions and instructions to the duty engineers", "cross_family": false }, { "answer_id": "UPT-FIRE-001", "score": 0.6137521862983704, "sibling_score": 0.6137521862983704, "answer_score": 0.3639081701636314, "sibling_qid": "MUM-2026-03-0999-Q005", "sibling_text": "uptake fire", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "The 4/E reports an uptake fire — your actions as 2/E", "cross_family": false }, { "answer_id": "SMK-FUNL-BF01-004", "score": 0.38921073377132415, "sibling_score": null, "answer_score": 0.38921073377132415, "sibling_qid": "", "sibling_text": "there are sparks from the funnel on arrival in port what is the reason and your action cause egb soot fire ignited by arrival load transients on a soot loaded gas side confirm rising egb gas outlet temp with steady inlet classical signature of a tube fire", "sibling_family": "", "via": "answer_title", "answer_title": "There are sparks from the funnel on arrival in port — what is the reason and your action?", "cross_family": false } ] }, { "qid": "KOC-2022-09-2034-Q004", "text": "Forces acting on transverse girder?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Bedplate / A-Frame", "tid": "KOC-2022-09-2034", "tray": "review", "candidates": [ { "answer_id": "FWFB-P02-008", "score": 0.7483628988265991, "sibling_score": 0.7483628988265991, "answer_score": 0.5331673264503479, "sibling_qid": "KOC-2021-06-0942-Q009", "sibling_text": "forces acting on transverse girder", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Forces and stresses on transverse girders; action for cracks", "cross_family": true }, { "answer_id": "KGF-A-001", "score": 0.643567681312561, "sibling_score": 0.643567681312561, "answer_score": null, "sibling_qid": "KOC-2022-03-0960-Q002", "sibling_text": "forces acting on transverse grd of me", "sibling_family": "", "via": "sibling", "answer_title": "Construction terminology & structural member identification", "cross_family": false }, { "answer_id": "FWFB-P02-007", "score": 0.6245892643928528, "sibling_score": 0.6245892643928528, "answer_score": 0.48465857207775115, "sibling_qid": "MUM-2026-05-3163-Q003", "sibling_text": "material of transverse girders", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Transverse and longitudinal girders: arrangement and purpose", "cross_family": false } ] }, { "qid": "KOC-2022-09-2034-Q008", "text": "Liner wear down? Limit and causes?", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "KOC-2022-09-2034", "tray": "review", "candidates": [ { "answer_id": "CYL-LINER-P01-003", "score": 0.6798718571662903, "sibling_score": 0.6798718571662903, "answer_score": null, "sibling_qid": "KOC-2026-08-2146-Q014", "sibling_text": "maximum wear down of liner", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "From the readings: wear, wear rate, units and renewal limits", "cross_family": false }, { "answer_id": "CYL-LINER-P02-003", "score": 0.6537336707115173, "sibling_score": 0.6537336707115173, "answer_score": null, "sibling_qid": "KOL-2021-08-3448-Q003", "sibling_text": "liner wear down limit and what repair if it exceed its limit", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L3 · T044-PART_02-G003High", "cross_family": false }, { "answer_id": "CYL-LINER-P02-005", "score": 0.6246892809867859, "sibling_score": 0.6246892809867859, "answer_score": null, "sibling_qid": "KOL-2024-10-3719-Q001", "sibling_text": "liner wear increased on one unit all units reasons remedies", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L5 · T044-PART_02-G005High", "cross_family": false } ] }, { "qid": "KOC-2022-10-0102-Q012", "text": "pr testing of double btm tank", "family": "SOLAS", "subtopic": "Double Bottom / Torsion Box", "tid": "KOC-2022-10-0102", "tray": "new", "candidates": [ { "answer_id": "DBTB-A-003", "score": 0.6108654141426086, "sibling_score": 0.6108654141426086, "answer_score": 0.45392440259456635, "sibling_qid": "CHE-2026-05-0639-Q008", "sibling_text": "how to pressure test double bottom tank", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Carrying out a double-bottom tank pressure / tank test", "cross_family": false }, { "answer_id": "BOT-PLUG-001", "score": 0.5365340709686279, "sibling_score": 0.5365340709686279, "answer_score": null, "sibling_qid": "MUM-2026-06-3471-Q005", "sibling_text": "testing of a db ballast tank bottom plug", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "How do you check the watertight integrity of a DB tank bottom plug in dry dock?", "cross_family": true }, { "answer_id": "DBTB-A-002", "score": 0.5051085948944092, "sibling_score": 0.5051085948944092, "answer_score": 0.3753314971923828, "sibling_qid": "MUM-2024-10-0214-Q003", "sibling_text": "construction of double bottom tank", "sibling_family": "", "via": "sibling", "answer_title": "Double-bottom tanks: purpose, advantages, disadvantages and stability effect", "cross_family": false } ] }, { "qid": "KOC-2022-10-0102-Q014", "text": "bnwas", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "KOC-2022-10-0102", "tray": "new", "candidates": [ { "answer_id": "LO-TEST-P01-004", "score": 0.5244225263595581, "sibling_score": 0.5244225263595581, "answer_score": null, "sibling_qid": "KOL-2018-09-1418-Q003", "sibling_text": "what is bn tbn tan sn", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "TBN, BN, TAN, SAN and the SAE grade", "cross_family": true }, { "answer_id": "BWMS-C-001", "score": 0.5216121077537537, "sibling_score": 0.5216121077537537, "answer_score": null, "sibling_qid": "MUM-2025-10-0517-Q002", "sibling_text": "bwts", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Ballast water management vs treatment — and why a BWTS", "cross_family": true }, { "answer_id": "BDN-001-001", "score": 0.500422477722168, "sibling_score": 0.500422477722168, "answer_score": null, "sibling_qid": "MUM-2023-08-0118-Q006", "sibling_text": "content of bdn", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "BDN: what it is and what it must contain", "cross_family": true } ] }, { "qid": "KOC-2022-10-0102-Q015", "text": "nav eqpmnts on board", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "KOC-2022-10-0102", "tray": "new", "candidates": [ { "answer_id": "SEQ-330-003", "score": 0.5136594772338867, "sibling_score": 0.5136594772338867, "answer_score": null, "sibling_qid": "KOC-2024-04-0335-Q006", "sibling_text": "seq survey apart from lsa ffa navigation", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "SEQ survey scope apart from LSA, FFA and navigation items", "cross_family": true }, { "answer_id": "LT-SRC-004", "score": 0.5132597088813782, "sibling_score": 0.5132597088813782, "answer_score": null, "sibling_qid": "MUM-2026-09-3954-Q004", "sibling_text": "navigation lights", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "What navigation lights are carried, where, and how many?", "cross_family": false }, { "answer_id": "LT-SRC-009", "score": 0.5074490904808044, "sibling_score": 0.5074490904808044, "answer_score": null, "sibling_qid": "KOC-2023-04-1253-Q008", "sibling_text": "navigational lights onboard how many what is special about navigational lights alarm upon failure", "sibling_family": "", "via": "sibling", "answer_title": "Draw and explain the nav-light circuit, fault indication and fuse-failure alarm", "cross_family": false } ] }, { "qid": "KOC-2022-10-0103-Q005", "text": "1.* Type of ships, and how many ships have u done after class 4 COC (\"I have sailed in Oil tanker\")", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2022-10-0103", "tray": "review", "candidates": [ { "answer_id": "COT-01", "score": 0.721118152141571, "sibling_score": 0.721118152141571, "answer_score": 0.4972206473350525, "sibling_qid": "KOC-2026-04-0892-Q003", "sibling_text": "type of ship sailed tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Oil-tanker types, definitions and cargo capability", "cross_family": false }, { "answer_id": "IBC-BCH-B-004", "score": 0.6772797703742981, "sibling_score": 0.6772797703742981, "answer_score": null, "sibling_qid": "MUM-2026-05-3156-Q001", "sibling_text": "type of ships chemical tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Certificate of Fitness and MARPOL Annex II in practice", "cross_family": false }, { "answer_id": "LPG-LNG-009", "score": 0.6691884398460388, "sibling_score": 0.6691884398460388, "answer_score": null, "sibling_qid": "CHE-2026-04-0164-Q001", "sibling_text": "type of ship sailed lpg carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Gas-carrier fundamentals and ship-specific traps", "cross_family": false } ] }, { "qid": "KOC-2022-10-0103-Q013", "text": "1.* what all Electrical jobs you have carried on board.? (I said I have Overhauled Motor). What all checks you will carry before overhauling, during overhauling and after overhauling.?", "family": "Electrical - Motors & Starters", "subtopic": "Motor Not Starting", "tid": "KOC-2022-10-0103", "tray": "review", "candidates": [ { "answer_id": "ROTSTAT-C-002", "score": 0.7692821621894836, "sibling_score": 0.7692821621894836, "answer_score": null, "sibling_qid": "MUM-2024-06-1434-Q006", "sibling_text": "motor overhaul checks in rotor and stator", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Rotor & stator overhaul and inspection checks", "cross_family": false }, { "answer_id": "IR-TEST-B-016", "score": 0.7560645937919617, "sibling_score": 0.7560645937919617, "answer_score": 0.6207786679267883, "sibling_qid": "MUM-2025-05-1517-Q002", "sibling_text": "motor checks after receiving from overhaul", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Post-overhaul motor testing — proving it good without coupling to load", "cross_family": false }, { "answer_id": "CONT-317-003", "score": 0.7529789805412292, "sibling_score": 0.7529789805412292, "answer_score": null, "sibling_qid": "MUM-2023-09-1401-Q004", "sibling_text": "motor overhauled how to do star connection how to check continuity", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Continuity to confirm terminal identity after overhaul or rewind", "cross_family": false } ] }, { "qid": "KOC-2022-10-0107-Q001", "text": "Lpg ship cross section", "family": "Cargo Ops - Gas Carriers", "subtopic": "Cargo Tank Construction", "tid": "KOC-2022-10-0107", "tray": "review", "candidates": [ { "answer_id": "SHELL-PLT-B-001", "score": 0.7491225600242615, "sibling_score": 0.7491225600242615, "answer_score": null, "sibling_qid": "KOC-2026-03-0871-Q002", "sibling_text": "draw cross section of ship lpg lotz of cross type of tank material of tank how tank is fixed hold space y inerting show bilge keel show sheer strake purpose of sheer strake", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Sheer strake — location, why strengthened, deck-edge / gunwale connection", "cross_family": false }, { "answer_id": "KGF-A-004", "score": 0.657699704170227, "sibling_score": 0.657699704170227, "answer_score": 0.45770246386528013, "sibling_qid": "KOC-2026-04-0889-Q002", "sibling_text": "cross section for ur ship", "sibling_family": "", "via": "sibling", "answer_title": "Hull / midship cross-section: draw & identify", "cross_family": false }, { "answer_id": "LPG-LNG-009", "score": 0.6527088284492493, "sibling_score": 0.6527088284492493, "answer_score": 0.4391247034072876, "sibling_qid": "CHE-2025-11-0309-Q007", "sibling_text": "cross in gas carrier ship why", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Gas-carrier fundamentals and ship-specific traps", "cross_family": false } ] }, { "qid": "KOC-2022-10-0107-Q002", "text": "Why it is a floating tank", "family": "Cargo Ops - Gas Carriers", "subtopic": "Cargo Tank Construction", "tid": "KOC-2022-10-0107", "tray": "new", "candidates": [ { "answer_id": "FSE-P02-002", "score": 0.5489121675491333, "sibling_score": 0.5489121675491333, "answer_score": null, "sibling_qid": "KOL-2016-05-0001-Q002", "sibling_text": "tank construction provisions to reduce free surface effect", "sibling_family": "", "via": "sibling", "answer_title": "Constructional arrangements in tanks and tankers that reduce FSE", "cross_family": false }, { "answer_id": "BC-HOPPER-G-002", "score": 0.5300355553627014, "sibling_score": 0.5300355553627014, "answer_score": null, "sibling_qid": "KOL-2026-03-1198-Q002", "sibling_text": "upper hooper tank why need to ballast", "sibling_family": "", "via": "sibling", "answer_title": "Ballasting the upper hopper / topside tank — when and why", "cross_family": false }, { "answer_id": "LPG-LNG-001", "score": 0.5255031585693359, "sibling_score": 0.5255031585693359, "answer_score": null, "sibling_qid": "KOL-2023-08-0761-Q003", "sibling_text": "type of tanker lpg why carried in liquid form", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "LPG vs LNG – properties, carriage and comparison", "cross_family": false } ] }, { "qid": "KOC-2022-10-0107-Q003", "text": "Mark chokes in figure", "family": "Cargo Ops - Gas Carriers", "subtopic": "Cargo Tank Construction", "tid": "KOC-2022-10-0107", "tray": "new", "candidates": [ { "answer_id": "CHK-330-003", "score": 0.4775204658508301, "sibling_score": 0.4775204658508301, "answer_score": 0.2600121691823006, "sibling_qid": "KOC-2022-02-0958-Q005", "sibling_text": "draw and explain end chokes draw and explain side chokes", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "End chocks and side chocks — sketch and explanation", "cross_family": true }, { "answer_id": "CHK-RM-001", "score": 0.4316370487213135, "sibling_score": 0.4316370487213135, "answer_score": null, "sibling_qid": "KOL-2024-12-1960-Q006", "sibling_text": "choks type of choks where fitted which choks have big area", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What are chocks? Function, types, where fitted and how placed — which have the biggest area, and how does the bedplate connect to the hull?", "cross_family": true }, { "answer_id": "CHK-330-001", "score": 0.41446763277053833, "sibling_score": 0.41446763277053833, "answer_score": null, "sibling_qid": "KOC-2022-04-1784-Q001", "sibling_text": "function of chock draw chock", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What is the purpose and function of main engine chocks?", "cross_family": true } ] }, { "qid": "KOC-2022-10-0107-Q008", "text": "Radius of gyration equation", "family": "SOLAS", "subtopic": "Static / Dynamic Stability", "tid": "KOC-2022-10-0107", "tray": "review", "candidates": [ { "answer_id": "BK-001", "score": 0.6571240425109863, "sibling_score": 0.6571240425109863, "answer_score": null, "sibling_qid": "KOC-2026-03-0878-Q015", "sibling_text": "raduis of gyration", "sibling_family": "", "via": "sibling", "answer_title": "What is a bilge keel and what is its purpose?", "cross_family": false }, { "answer_id": "BK-004", "score": 0.6334570050239563, "sibling_score": 0.6334570050239563, "answer_score": null, "sibling_qid": "KOC-2025-07-0633-Q019", "sibling_text": "how its connected radius of gyration", "sibling_family": "", "via": "sibling", "answer_title": "How is a bilge keel attached to the hull, and how is hull cracking or rupture controlled?", "cross_family": false }, { "answer_id": "BK-002", "score": 0.6177177429199219, "sibling_score": 0.6177177429199219, "answer_score": 0.3680717587471008, "sibling_qid": "KOC-2026-03-0880-Q006", "sibling_text": "period of roll equation radius of gyration relation and what is g", "sibling_family": "", "via": "sibling", "answer_title": "How does a bilge keel reduce rolling, and how does it relate to roll period and radius of gyration?", "cross_family": false } ] }, { "qid": "KOC-2022-10-0107-Q010", "text": "Immersion suit and thermal protection suit location and purpose", "family": "SOLAS - LSA & Lifeboats", "subtopic": "LSA Code", "tid": "KOC-2022-10-0107", "tray": "new", "candidates": [ { "answer_id": "LB-SURV-C-003", "score": 0.5498408675193787, "sibling_score": 0.5498408675193787, "answer_score": null, "sibling_qid": "CHE-2026-02-0103-Q002", "sibling_text": "immersion suit monthly 6 month and annual maintenance", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Routine maintenance ladder — weekly / monthly / quarterly / 6-monthly onboard checks", "cross_family": false }, { "answer_id": "COT-P03-01", "score": 0.49588823318481445, "sibling_score": 0.49588823318481445, "answer_score": null, "sibling_qid": "KOL-2025-03-0915-Q004", "sibling_text": "protection for body from hazardous cargo chemical and vapours chemical splash suits material and accessories", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "H₂S, benzene and toxic-cargo vapour exposure — hazards, limits, PPE and respirator checks", "cross_family": true }, { "answer_id": "SCBA-EEBD-005", "score": 0.49447423219680786, "sibling_score": 0.49447423219680786, "answer_score": 0.4171054676175117, "sibling_qid": "KOL-2017-01-0042-Q005", "sibling_text": "difference between firemans outfit ppa immerssion suit when it is used", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fireman's outfit vs PPA vs immersion suit — what each is, when used", "cross_family": true } ] }, { "qid": "KOC-2022-10-1200-Q002", "text": "starter panel? Components (don't know)", "family": "Electrical - Motors & Starters", "subtopic": "Starter Panel / Control Circuit", "tid": "KOC-2022-10-1200", "tray": "review", "candidates": [ { "answer_id": "IMSP-004", "score": 0.6595488786697388, "sibling_score": 0.6595488786697388, "answer_score": null, "sibling_qid": "MUM-2026-01-1860-Q001S2", "sibling_text": "start dela starter components", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Explain the star-delta starter, and what you find inside it when you open it — its components.", "cross_family": false }, { "answer_id": "STR-DEC-A-001", "score": 0.6174531579017639, "sibling_score": 0.6174531579017639, "answer_score": null, "sibling_qid": "KOC-2023-10-1287-Q001", "sibling_text": "1 starter panel", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "IMSP-002", "score": 0.5247761607170105, "sibling_score": 0.5247761607170105, "answer_score": null, "sibling_qid": "MUM-2025-11-1754-Q002", "sibling_text": "type starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What types of starter are used onboard? Name and explain the starting methods for a three-phase induction motor, including the soft starter.", "cross_family": false } ] }, { "qid": "KOC-2022-10-1200-Q006", "text": "type of RADAR", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "KOC-2022-10-1200", "tray": "new", "candidates": [ { "answer_id": "DUS-P3-05", "score": 0.5740362405776978, "sibling_score": 0.5740362405776978, "answer_score": 0.40526846945285794, "sibling_qid": "MUM-2026-09-3886-Q005", "sibling_text": "how ships radar working", "sibling_family": "Navigation & Bridge Equipment", "via": "sibling", "answer_title": "Radar inspection while entering drydock, and the certificate covering DB inspection", "cross_family": true }, { "answer_id": "DES-571-001", "score": 0.5634264349937439, "sibling_score": 0.5634264349937439, "answer_score": null, "sibling_qid": "KOC-2023-12-1312-Q015", "sibling_text": "type of speed log onboard and doppler effect", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "The Doppler log — measuring the ship's speed by the Doppler effect", "cross_family": false }, { "answer_id": "EPC-P01-08", "score": 0.5289955139160156, "sibling_score": 0.5289955139160156, "answer_score": 0.4471363455057144, "sibling_qid": "MUM-2026-09-3886-Q006", "sibling_text": "x band and s band wavelength and frequency and type of wave", "sibling_family": "Navigation & Bridge Equipment", "via": "sibling", "answer_title": "Magnetron — what it is and how it works", "cross_family": true } ] }, { "qid": "KOC-2022-10-1202-Q004", "text": "Navigational equipment", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "KOC-2022-10-1202", "tray": "new", "candidates": [ { "answer_id": "LT-SRC-004", "score": 0.6297274231910706, "sibling_score": 0.6297274231910706, "answer_score": 0.4286360502243042, "sibling_qid": "MUM-2026-09-3954-Q004", "sibling_text": "navigation lights", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "What navigation lights are carried, where, and how many?", "cross_family": false }, { "answer_id": "LT-SRC-007", "score": 0.6040940880775452, "sibling_score": 0.6040940880775452, "answer_score": null, "sibling_qid": "KOC-2026-02-1708-Q006", "sibling_text": "navigational ckt where supply coming from regulations where all are the navigational lights", "sibling_family": "", "via": "sibling", "answer_title": "What is the navigation-light supply source, voltage and emergency arrangement?", "cross_family": false }, { "answer_id": "bdc-p05-03", "score": 0.6015564203262329, "sibling_score": 0.6015564203262329, "answer_score": null, "sibling_qid": "KOC-2026-02-1695-Q006", "sibling_text": "gmdss equipments", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "CQ-BDC-025 GMDSS reserve battery — requirement, supply, voltage and equipment Medium", "cross_family": true } ] }, { "qid": "KOC-2022-10-1203-Q007", "text": "Name Navigation equipment, sart is detected by which radar? Internal: no question", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "KOC-2022-10-1203", "tray": "new", "candidates": [ { "answer_id": "DUS-P3-05", "score": 0.5385929346084595, "sibling_score": 0.5385929346084595, "answer_score": 0.46393747329711915, "sibling_qid": "MUM-2026-09-3886-Q005", "sibling_text": "how ships radar working", "sibling_family": "Navigation & Bridge Equipment", "via": "sibling", "answer_title": "Radar inspection while entering drydock, and the certificate covering DB inspection", "cross_family": true }, { "answer_id": "EPIRB-SART-001", "score": 0.4987330138683319, "sibling_score": 0.4987330138683319, "answer_score": 0.45101710259914396, "sibling_qid": "MUM-2026-07-3681-Q012", "sibling_text": "another surveyor differentiate sart frequency and epirb frequency", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What is the difference between EPIRB and SART? Give the function, construction, use and operation of each.", "cross_family": true }, { "answer_id": "SEQ-330-003", "score": 0.4858156740665436, "sibling_score": 0.4858156740665436, "answer_score": null, "sibling_qid": "KOC-2024-04-0335-Q006", "sibling_text": "seq survey apart from lsa ffa navigation", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "SEQ survey scope apart from LSA, FFA and navigation items", "cross_family": true } ] }, { "qid": "KOC-2022-10-1204-Q004", "text": "Innovations after invention of ac", "family": "Electrical - Motors & Starters", "subtopic": "Induction Motor (General / Working)", "tid": "KOC-2022-10-1204", "tray": "new", "candidates": [ { "answer_id": "DCMOT-A-001", "score": 0.5445753335952759, "sibling_score": 0.5445753335952759, "answer_score": null, "sibling_qid": "KOC-2026-04-1736-Q006", "sibling_text": "after invention of ac what is the major change in world induction motor cross advantage of induction motor over dc motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types, characteristics and shipboard use of DC motors", "cross_family": false }, { "answer_id": "RMS-VAL-001", "score": 0.5304152965545654, "sibling_score": 0.5304152965545654, "answer_score": null, "sibling_qid": "KOC-2025-09-1577-Q007", "sibling_text": "evolution of ac system", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "RMS value and its significance", "cross_family": true }, { "answer_id": "SFOC-006", "score": 0.47782599925994873, "sibling_score": 0.47782599925994873, "answer_score": null, "sibling_qid": "KOL-2019-06-1458-Q002", "sibling_text": "developments which had increased engine s efficiency", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What developments reduced fuel consumption in two-stroke engines — and what gives a direct reduction in SFOC?", "cross_family": true } ] }, { "qid": "KOC-2022-10-1204-Q008", "text": "Advantage of 60 hz", "family": "Electrical - Generator & Alternator", "subtopic": "Frequency", "tid": "KOC-2022-10-1204", "tray": "new", "candidates": [ { "answer_id": "ALT-GEN-P04-007", "score": 0.6011530756950378, "sibling_score": 0.6011530756950378, "answer_score": 0.35681899189949035, "sibling_qid": "KOC-2026-03-1727-Q005", "sibling_text": "why 60hz internal no questions", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Frequency, poles, speed and 50/60 Hz relation", "cross_family": false }, { "answer_id": "SYN-ASY-B-002", "score": 0.4184836149215698, "sibling_score": 0.4184836149215698, "answer_score": null, "sibling_qid": "MUM-2025-09-1643-Q002", "sibling_text": "synchronous motor frequency 60 hz and pole 4 how much is rpm", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Synchronous speed, slip relation, and speed control", "cross_family": false }, { "answer_id": "IM-TSS-P03-FINAL-1-001", "score": 0.4150029122829437, "sibling_score": 0.4150029122829437, "answer_score": null, "sibling_qid": "KOL-2016-11-2078-Q006", "sibling_text": "two motors of same power rating with 50 and 60hz what is the difference", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Speed control of induction / AC motors — methods and onboard use", "cross_family": true } ] }, { "qid": "KOC-2022-10-1204-Q009", "text": "What if 50 hz is provided , said v need to be reduced , he again asked what if we received v more than we asked for", "family": "Electrical - Generator & Alternator", "subtopic": "Frequency", "tid": "KOC-2022-10-1204", "tray": "new", "candidates": [ { "answer_id": "SYNC-D-003", "score": 0.6063464283943176, "sibling_score": 0.6063464283943176, "answer_score": null, "sibling_qid": "CHE-2025-07-0265-Q012", "sibling_text": "while llel 2 gen incoming generator voltage is low i said voltage trimmer is provided in the msb or generator can adjust or 5v he need percentage i don t surveyor said 2 5 of rated voltage", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Correct paralleling — checks, the synchroscope & phase angle, voltage trim, interlocks", "cross_family": false }, { "answer_id": "NO-VOLT-002", "score": 0.5736793875694275, "sibling_score": 0.5736793875694275, "answer_score": 0.3954017415642738, "sibling_qid": "KOC-2026-09-2184-Q013", "sibling_text": "what if incoming generator voltage is less", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "After starting, before taking load, the voltage is lower than rated — what would you do?", "cross_family": false }, { "answer_id": "SHORE-CONN-P04-001", "score": 0.5644910335540771, "sibling_score": 0.5644910335540771, "answer_score": 0.44713355898857116, "sibling_qid": "KOL-2017-07-2139-Q003", "sibling_text": "in shore supply ship frequency 50 hz shore supply 60 hz can u take i told yes keeping v f ratio constant then how to reduce voltage effects", "sibling_family": "", "via": "sibling", "answer_title": "Accepting shore supply at a different frequency or voltage (incl. dry dock)", "cross_family": false } ] }, { "qid": "KOC-2022-11-0108-Q004", "text": "Mlc chapter 5 explain.. what is dmlc part 1 and part", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOC-2022-11-0108", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.6153550148010254, "sibling_score": 0.6153550148010254, "answer_score": 0.3566327005624771, "sibling_qid": "KOC-2025-08-2071-Q013", "sibling_text": "dmlc part 1 and part", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "ISM-ELEM-003", "score": 0.25661649405956266, "sibling_score": null, "answer_score": 0.25661649405956266, "sibling_qid": "", "sibling_text": "elements chapters structure of the ism code part a implementation the 12 elements 1 general 1 1 definitions 1 2 objectives 1 3 application 1 4 functional requirements for an sms", "sibling_family": "", "via": "answer_title", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": false }, { "answer_id": "EPC-P03-002", "score": 0.23406847864389418, "sibling_score": null, "answer_score": 0.23406847864389418, "sibling_qid": "", "sibling_text": "what are the components and parts of a plc including the memory types and what data is stored in each parts power supply unit cpu processor memory input modules output modules rack backplane communication ports with the programming terminal as the service tool memory by function system firmware memory work memory execution non volatile load memory user program configured retentive data implementat", "sibling_family": "", "via": "answer_title", "answer_title": "What are the components and parts of a PLC — including the memory types and what data is stored in each?", "cross_family": false } ] }, { "qid": "KOC-2022-11-0108-Q005", "text": "What is reporting procedure of crew to shore as per mlc ?", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOC-2022-11-0108", "tray": "new", "candidates": [ { "answer_id": "IMODCS-003", "score": 0.5017159581184387, "sibling_score": 0.5017159581184387, "answer_score": null, "sibling_qid": "KOC-2022-12-0118-Q009", "sibling_text": "carried out annually report send to company and flag state from there report send to imo", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "How is the DCS report submitted — company, flag State, IMO — and how does it relate to the SEEMP?", "cross_family": true }, { "answer_id": "SGP-001", "score": 0.49221575260162354, "sibling_score": 0.49221575260162354, "answer_score": null, "sibling_qid": "KOL-2018-04-3135-Q002", "sibling_text": "actions after u reach port after grounding actions as a ce not as 2nd doesn t want to hear mud in coolers and sea chest changeover only checks as ce", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "What checks and actions are required when a ship is aground or after grounding?", "cross_family": true }, { "answer_id": "MLC-WRH-B-009", "score": 0.4812151789665222, "sibling_score": 0.4812151789665222, "answer_score": null, "sibling_qid": "CHE-2025-08-0426-Q009", "sibling_text": "ship owner abandoned the ship what will you do as per mlc i told financial security certificate for repartation", "sibling_family": "MLC", "via": "sibling", "answer_title": "Abandonment — financial security and repatriation", "cross_family": false } ] }, { "qid": "KOC-2022-11-0108-Q008", "text": "Explain COA", "family": "Maritime Law & Certificates", "subtopic": "COA", "tid": "KOC-2022-11-0108", "tray": "new", "candidates": [ { "answer_id": "COA-330-001", "score": 0.4729534387588501, "sibling_score": 0.4729534387588501, "answer_score": null, "sibling_qid": "MUM-2026-04-0880-Q003", "sibling_text": "coa explain sea wtr drip", "sibling_family": "Maritime Law & Certificates", "via": "sibling", "answer_title": "COA — Conditions of Assignment (of freeboard)", "cross_family": false }, { "answer_id": "RES-BUOY-004", "score": 0.45132142305374146, "sibling_score": 0.45132142305374146, "answer_score": null, "sibling_qid": "CHE-2025-08-0013-Q007", "sibling_text": "coa depends upon reserve buoyancy and what all factor", "sibling_family": "", "via": "sibling", "answer_title": "‘Coefficient of buoyancy’ and the factors that govern reserve buoyancy", "cross_family": false }, { "answer_id": "COC-001", "score": 0.44038528203964233, "sibling_score": 0.44038528203964233, "answer_score": null, "sibling_qid": "KOL-2025-07-0978-Q001", "sibling_text": "what is coc where it is found", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is a Condition of Class? Give examples, say where it is found, how much time is given to rectify it, and what happens if it is not met in time.", "cross_family": true } ] }, { "qid": "KOC-2022-11-0109-Q003", "text": "LIFEBOAT HOISTING", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Davit / Release Gear", "tid": "KOC-2022-11-0109", "tray": "review", "candidates": [ { "answer_id": "DRG-583-A-011", "score": 0.7775112986564636, "sibling_score": 0.7775112986564636, "answer_score": null, "sibling_qid": "KOC-2024-12-0482-Q001", "sibling_text": "lifeboat hoisting procedure", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Securing the boat for sea, hoisting and recovery, and fall preventer devices", "cross_family": false }, { "answer_id": "DRG-B-007", "score": 0.7572259306907654, "sibling_score": 0.7572259306907654, "answer_score": null, "sibling_qid": "KOC-2025-07-0620-Q009", "sibling_text": "lifeboat lowering", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lowering the boat — gravity davit procedure", "cross_family": false }, { "answer_id": "LB-SURV-C-007", "score": 0.7458750605583191, "sibling_score": 0.7458750605583191, "answer_score": null, "sibling_qid": "KOL-2021-09-0553-Q004", "sibling_text": "life boat lowering maintenance", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Launching appliance — davit, winch brake and on-load release gear maintenance and tests", "cross_family": false } ] }, { "qid": "KOC-2022-11-0109-Q006", "text": "Aux boiler Fire in control panel - Ur actions He wasnt accepting switch off breaker and all, he wanted to hear we will inform first", "family": "Boilers - Operations & Firing", "subtopic": "Boiler Operations", "tid": "KOC-2022-11-0109", "tray": "review", "candidates": [ { "answer_id": "BLR-BSP-001", "score": 0.7047027945518494, "sibling_score": 0.7047027945518494, "answer_score": null, "sibling_qid": "MUM-2025-08-2352-Q001", "sibling_text": "3e firing boiler and he finds boiler tripping off with too much panting boiler is cathing fire but it it putting off again as a 2e actions taken by you and rectifying of all the possible defects", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler panting (combustion pulsation): causes, symptoms, and your actions as 2/E", "cross_family": false }, { "answer_id": "UPT-FIRE-001", "score": 0.6977518796920776, "sibling_score": 0.6977518796920776, "answer_score": null, "sibling_qid": "KOL-2019-11-3288-Q002", "sibling_text": "actions as 2 e on boiler uptake fire", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "The 4/E reports an uptake fire — your actions as 2/E", "cross_family": false }, { "answer_id": "CO2-SYS-003", "score": 0.6967946290969849, "sibling_score": 0.6967946290969849, "answer_score": null, "sibling_qid": "KOC-2026-02-0824-Q002", "sibling_text": "boiler n control panel fire action", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 system — use decisions, suitability and post-release checks", "cross_family": true } ] }, { "qid": "KOC-2022-11-0110-Q005", "text": "MLC title 5 explain in detail", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOC-2022-11-0110", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.48526859283447266, "sibling_score": 0.48526859283447266, "answer_score": 0.31259947270154953, "sibling_qid": "KOC-2026-05-2135-Q011", "sibling_text": "mlc titles explain title 1 explain dmlc part 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "MLC-WRH-B-006", "score": 0.4093409478664398, "sibling_score": 0.4093409478664398, "answer_score": 0.25115922689437864, "sibling_qid": "MUM-2026-07-3680-Q005", "sibling_text": "what is mlc certificate under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false }, { "answer_id": "MLC-WRH-B-010", "score": 0.3983412981033325, "sibling_score": 0.3983412981033325, "answer_score": null, "sibling_qid": "MUM-2025-11-0573-Q004", "sibling_text": "how are wages set under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "SEA, the CBA parties, and how wages are set — action on non-payment", "cross_family": false } ] }, { "qid": "KOC-2022-11-0112-Q004", "text": "Draw and explain Bulbous bow", "family": "", "subtopic": "Bulbous Bow", "tid": "KOC-2022-11-0112", "tray": "new", "candidates": [ { "answer_id": "PPS-230-006", "score": 0.5135992169380188, "sibling_score": 0.5135992169380188, "answer_score": 0.3383707031607628, "sibling_qid": "MUM-2026-02-0782-Q011", "sibling_text": "bulbous bow how it is connected to ship shape of bow", "sibling_family": "", "via": "sibling", "answer_title": "Fore-end / fore-peak structure: draw and describe", "cross_family": false }, { "answer_id": "LOLL-P02-004", "score": 0.4736136496067047, "sibling_score": 0.4736136496067047, "answer_score": null, "sibling_qid": "MUM-2026-02-0782-Q008", "sibling_text": "draw gz curve showing angle of loll", "sibling_family": "", "via": "sibling", "answer_title": "3. Angle of loll on the GZ curve — the GM condition", "cross_family": false }, { "answer_id": "ANCH-CHN-A-004", "score": 0.44482725858688354, "sibling_score": 0.44482725858688354, "answer_score": null, "sibling_qid": "KOC-2023-11-0249-Q004", "sibling_text": "draw anchor bitter end diagram", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Cable arrangement: anchor to bitter end, and the bitter-end release", "cross_family": false } ] }, { "qid": "KOC-2022-11-0112-Q006", "text": "Sms Contents", "family": "ISM Code", "subtopic": "SMS / Functional Requirements", "tid": "KOC-2022-11-0112", "tray": "review", "candidates": [ { "answer_id": "SMSFR-002", "score": 0.8254028558731079, "sibling_score": 0.8254028558731079, "answer_score": null, "sibling_qid": "KOC-2022-03-0063-Q002", "sibling_text": "contents of sms", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the Safety Management System — the SMS manual, its contents, objectives, why it is needed onboard, and the company SMS policy?", "cross_family": false }, { "answer_id": "ISM-AUD-P02-004", "score": 0.824754536151886, "sibling_score": 0.824754536151886, "answer_score": 0.2840343028306961, "sibling_qid": "MUM-2022-08-0033-Q001", "sibling_text": "contents of sms", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "SMS contents, manuals, documents and drill records onboard", "cross_family": false }, { "answer_id": "ISM-SMCDOC-A-001", "score": 0.6638430953025818, "sibling_score": 0.6638430953025818, "answer_score": null, "sibling_qid": "MUM-2026-05-3182-Q002", "sibling_text": "what is sms", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM certificates: the DOC and SMC family", "cross_family": false } ] }, { "qid": "KOC-2022-11-0112-Q007", "text": "Mlc titles and dmlc1 and dmlc2", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOC-2022-11-0112", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.6512994766235352, "sibling_score": 0.6512994766235352, "answer_score": 0.2765426248311996, "sibling_qid": "KOC-2026-05-2135-Q011", "sibling_text": "mlc titles explain title 1 explain dmlc part 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "IMO-CODES-P03-003", "score": 0.24806604087352752, "sibling_score": null, "answer_score": 0.24806604087352752, "sibling_qid": "", "sibling_text": "latest imo msc msc 108 109 110 and msc 111 outcomes", "sibling_family": "", "via": "answer_title", "answer_title": "Latest IMO/MSC: MSC 108, 109, 110 and MSC 111 outcomes", "cross_family": false }, { "answer_id": "ENG-NOM-006", "score": 0.24347755908966065, "sibling_score": null, "answer_score": 0.24347755908966065, "sibling_qid": "", "sibling_text": "short form asks smc c lmc and me vs mc quickly smc c super long stroke man programme camshaft controlled compact lmc l long stroke the l is the stroke letter not a control or compact letter", "sibling_family": "", "via": "answer_title", "answer_title": "Short-form asks: SMC-C, LMC, and ME vs MC quickly", "cross_family": false } ] }, { "qid": "KOC-2022-11-1205-Q002", "text": "Stern frame construction, dwg and explain parts", "family": "Ship Construction & Stability", "subtopic": "Stern Frame / Transom", "tid": "KOC-2022-11-1205", "tray": "review", "candidates": [ { "answer_id": "SPR-STERN-002", "score": 0.7097681164741516, "sibling_score": 0.7097681164741516, "answer_score": null, "sibling_qid": "KOC-2022-08-0083-Q001", "sibling_text": "draw stern frame show arrangement how stern tube is supported on fwd area of stern frame", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Propeller draw & dry-dock blade repair", "cross_family": true }, { "answer_id": "DUS-P5-03", "score": 0.7078325748443604, "sibling_score": 0.7078325748443604, "answer_score": 0.5921406179666518, "sibling_qid": "KOC-2021-10-0031-Q004", "sibling_text": "stern frame construction", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Stern frame construction, cross-section and rudder-axis sketch", "cross_family": true }, { "answer_id": "SPR-STERN-009", "score": 0.6514960527420044, "sibling_score": 0.6514960527420044, "answer_score": 0.5637865394353866, "sibling_qid": "KOL-2025-09-1070-Q009", "sibling_text": "load carrying components in the stern frame", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Stern frame, stern tube support, lubrication & construction", "cross_family": true } ] }, { "qid": "KOC-2022-11-1205-Q003", "text": "Orb codes G , F , I . Cross questions. 3 . Electrical propulsion 4 . TYPES OF ELECTRCAL propulsion . How is it connected to shaft . 5.what is carbon factor , value of MGO oil", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "KOC-2022-11-1205", "tray": "new", "candidates": [ { "answer_id": "AVR-EXC-F-001", "score": 0.6237074136734009, "sibling_score": 0.6237074136734009, "answer_score": null, "sibling_qid": "KOC-2024-08-1376-Q007", "sibling_text": "carbon pile avr explain internal paul types of motor used onboard application of dc motor onboard what are the 3 point in 3point starter", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "How does a carbon-pile AVR / regulator work?", "cross_family": true }, { "answer_id": "RES-PROP-P03-001", "score": 0.5943524837493896, "sibling_score": 0.5943524837493896, "answer_score": null, "sibling_qid": "KOC-2022-11-1210-Q002", "sibling_text": "draw electric shaft propullsion diagram with cross", "sibling_family": "", "via": "sibling", "answer_title": "1. Electric (diesel-electric) propulsion: arrangement, speed control, advantages and limitations", "cross_family": false }, { "answer_id": "CABLE-INS-C-002", "score": 0.5941704511642456, "sibling_score": 0.5941704511642456, "answer_score": null, "sibling_qid": "MUM-2023-09-1403-Q001", "sibling_text": "arvind choudhari mohan lal type of ships done 1 if you want to fix new motor at forward and want to lay up cable what all information you will give to company for cable 2 draw and explain viltage vs time diagram which explains paralleling of generator and explain on diagram why frequency voltage and phase sequence should be same 3 why air gap is given between stator and rotor how to measure", "sibling_family": "", "via": "sibling", "answer_title": "Cable laying, routing & watertight-bulkhead penetration", "cross_family": false } ] }, { "qid": "KOC-2022-11-1205-Q008", "text": "What happens to purifier motor when freq reduced", "family": "Electrical - Generator & Alternator", "subtopic": "Frequency", "tid": "KOC-2022-11-1205", "tray": "new", "candidates": [ { "answer_id": "MNS-018", "score": 0.5969655513763428, "sibling_score": 0.5969655513763428, "answer_score": null, "sibling_qid": "KOC-2021-11-0038-Q016", "sibling_text": "motor voltage reduced effects", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "The effect of reduced voltage on a motor", "cross_family": true }, { "answer_id": "PURIF-BOWL-P02-003", "score": 0.571550726890564, "sibling_score": 0.571550726890564, "answer_score": null, "sibling_qid": "KOL-2021-10-3994-Q002", "sibling_text": "purifier started and motor gets overloaded reasons", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Vertical shaft, bowl height, bearings & load support — checks, adjustment, overhaul, renewal", "cross_family": true }, { "answer_id": "PURIF-BOWL-P02-002", "score": 0.5681450366973877, "sibling_score": 0.5681450366973877, "answer_score": null, "sibling_qid": "KOC-2025-07-1046-Q008", "sibling_text": "running purifier is unable to reach its rated rpm reasons", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Drive, rated RPM, overload, vibration / wobbling & dynamic balancing — causes and troubleshooting", "cross_family": true } ] }, { "qid": "KOC-2022-11-1205-Q009", "text": "What happens when freq of 50 HZ used in 60 HZ", "family": "Electrical - Generator & Alternator", "subtopic": "Frequency", "tid": "KOC-2022-11-1205", "tray": "new", "candidates": [ { "answer_id": "ALT-GEN-P04-007", "score": 0.5870698690414429, "sibling_score": 0.5870698690414429, "answer_score": 0.40824705362319946, "sibling_qid": "KOC-2025-10-1602-Q006", "sibling_text": "frequency 60 hz meaning why we using 60hz", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Frequency, poles, speed and 50/60 Hz relation", "cross_family": false }, { "answer_id": "SHORE-CONN-P04-001", "score": 0.5348843336105347, "sibling_score": 0.5348843336105347, "answer_score": 0.47738074660301205, "sibling_qid": "KOL-2026-03-2979-Q004", "sibling_text": "in dry dock shore is given 50 hz your ship supply frequency is 60 hz how you going take", "sibling_family": "", "via": "sibling", "answer_title": "Accepting shore supply at a different frequency or voltage (incl. dry dock)", "cross_family": false }, { "answer_id": "PF-D-001", "score": 0.5107213854789734, "sibling_score": 0.5107213854789734, "answer_score": null, "sibling_qid": "MUM-2026-05-3167-Q008", "sibling_text": "how to use 380v and 50 hz frequency", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "How kW, kVA, kVAR, current and the power triangle relate to power factor", "cross_family": false } ] }, { "qid": "KOC-2022-11-1206-Q004", "text": "What all protections for a motor working in an explosive atmosphere (ex types)", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOC-2022-11-1206", "tray": "review", "candidates": [ { "answer_id": "MNS-020", "score": 0.6752495765686035, "sibling_score": 0.6752495765686035, "answer_score": 0.5620397984981537, "sibling_qid": "KOC-2025-04-1525-Q006", "sibling_text": "types of motor protection", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Motor protections and safeties — the types, and the gangway motor", "cross_family": false }, { "answer_id": "EXD-EXI-A-002", "score": 0.6652653217315674, "sibling_score": 0.6652653217315674, "answer_score": null, "sibling_qid": "KOL-2019-07-2301-Q003", "sibling_text": "draw explosion proof motor", "sibling_family": "", "via": "sibling", "answer_title": "Ex d (flameproof / explosion-proof) — construction, shipboard applications and maintenance", "cross_family": false }, { "answer_id": "SAE-388-001", "score": 0.6578418016433716, "sibling_score": 0.6578418016433716, "answer_score": null, "sibling_qid": "CHE-2026-02-0483-Q010", "sibling_text": "starting air explosion protection", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "What safeties are fitted on the main engine starting air line?", "cross_family": false } ] }, { "qid": "KOC-2022-11-1208-Q003", "text": "Explain when a Motor is started how kva and kw load acts on Alternator", "family": "Electrical - Generator & Alternator", "subtopic": "Voltage Dip / Droop", "tid": "KOC-2022-11-1208", "tray": "review", "candidates": [ { "answer_id": "ALT-GEN-P04-006", "score": 0.6521151661872864, "sibling_score": 0.6521151661872864, "answer_score": 0.47191745042800903, "sibling_qid": "KOC-2024-02-1333-Q006", "sibling_text": "kw loading in alternator what happens in rotor and stator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Armature and field behaviour under kW load", "cross_family": false }, { "answer_id": "GEN-LSI-B-001", "score": 0.6274746060371399, "sibling_score": 0.6274746060371399, "answer_score": 0.4680529057979584, "sibling_qid": "KOL-2016-11-2084-Q002", "sibling_text": "2 alternators running same kw rating taking uneven load", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01. Two alternators in parallel — same kW but different current and power factor: cause and correction", "cross_family": false }, { "answer_id": "LS-IMB-A-001", "score": 0.6242815852165222, "sibling_score": 0.6242815852165222, "answer_score": null, "sibling_qid": "KOL-2025-08-2835-Q011", "sibling_text": "alternators running at 250 kva and 200 kva actions you will take", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Two paralleled generators sharing unequal load — cause and correction", "cross_family": false } ] }, { "qid": "KOC-2022-11-1208-Q011", "text": "LRIT How it is working", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "KOC-2022-11-1208", "tray": "new", "candidates": [ { "answer_id": "CH-FIRE-005", "score": 0.5158826112747192, "sibling_score": 0.5158826112747192, "answer_score": null, "sibling_qid": "CHE-2025-10-0070-Q021", "sibling_text": "how it is working", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Cargo hold fire — system working and maintenance (general)", "cross_family": true }, { "answer_id": "IND-MOT-A-001", "score": 0.5130316019058228, "sibling_score": 0.5130316019058228, "answer_score": null, "sibling_qid": "MUM-2022-03-1326-Q012", "sibling_text": "how it is working starting", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "1. Working principle of a three-phase induction motor", "cross_family": true }, { "answer_id": "SHAFT-CPP-003", "score": 0.4336375594139099, "sibling_score": 0.4336375594139099, "answer_score": null, "sibling_qid": "KOL-2019-12-1506-Q002", "sibling_text": "cpp working", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "3. CPP — working, construction, oil channel, feedback & emergency", "cross_family": false } ] }, { "qid": "KOC-2022-11-1209-Q006", "text": "3 point starter diagram and explanation", "family": "Electrical - Motors & Starters", "subtopic": "DC Motor Three-Point Starter", "tid": "KOC-2022-11-1209", "tray": "review", "candidates": [ { "answer_id": "SDST-A-001", "score": 0.7409586310386658, "sibling_score": 0.7409586310386658, "answer_score": 0.4533978521823883, "sibling_qid": "KOC-2026-02-1701-Q005", "sibling_text": "three point starter diagram with explanation", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false }, { "answer_id": "STR-DEC-A-001", "score": 0.6080467104911804, "sibling_score": 0.6080467104911804, "answer_score": null, "sibling_qid": "KOC-2026-05-2133-Q010", "sibling_text": "draw and explain 3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "SDC-005", "score": 0.43390282094478605, "sibling_score": null, "answer_score": 0.43390282094478605, "sibling_qid": "", "sibling_text": "draw the delta connection three windings joined end to start in a closed loop a triangle line leads r y b taken from the three corners junctions", "sibling_family": "", "via": "answer_title", "answer_title": "Draw the delta connection", "cross_family": false } ] }, { "qid": "KOC-2022-11-1209-Q012", "text": "What all electric safety arrangements on deck related to cargo operation", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOC-2022-11-1209", "tray": "review", "candidates": [ { "answer_id": "TNK-SAFE-BF26-003", "score": 0.7098094820976257, "sibling_score": 0.7098094820976257, "answer_score": 0.5343082278966903, "sibling_qid": "MUM-2026-01-1911-Q002", "sibling_text": "electrical safeties on deck of tanker", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What safeties, including electrical safeties and Ex ratings, are provided on the deck of a tanker?", "cross_family": false }, { "answer_id": "TNK-SAFE-BF26-002", "score": 0.689658522605896, "sibling_score": 0.689658522605896, "answer_score": null, "sibling_qid": "MUM-2023-09-1400-Q003", "sibling_text": "electrical safeties installed inside cargo tank", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What safeties are provided on the cargo tanks of an oil, crude or chemical tanker?", "cross_family": false }, { "answer_id": "WCM-P02-001", "score": 0.6873438358306885, "sibling_score": 0.6873438358306885, "answer_score": 0.5872299134731293, "sibling_qid": "MUM-2026-06-3651-Q006", "sibling_text": "deck electrical safeties", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Safeties and trips on ship's cranes (deck, cargo, provision, engine-room)", "cross_family": false } ] }, { "qid": "KOC-2022-11-1209-Q015", "text": "How High high level alarm trip works", "family": "Cargo Ops - Bulk Carriers", "subtopic": "Cargo Hold Level Detector", "tid": "KOC-2022-11-1209", "tray": "new", "candidates": [ { "answer_id": "IGAT-583-001", "score": 0.5166397094726562, "sibling_score": 0.5166397094726562, "answer_score": null, "sibling_qid": "KOL-2025-08-1016-Q005", "sibling_text": "ig working alarm trips", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "State all the alarms, trips and safety cut-outs provided on a tanker inert gas (IG) system.", "cross_family": true }, { "answer_id": "MSB-ESB-E-001", "score": 0.5086773633956909, "sibling_score": 0.5086773633956909, "answer_score": null, "sibling_qid": "KOC-2023-01-1229-Q006", "sibling_text": "msb alarms not trips", "sibling_family": "", "via": "sibling", "answer_title": "What safeties, protection trips, relays and alarms are provided on the MSB / ESB, and how are they tested?", "cross_family": false }, { "answer_id": "IGAT-583-003", "score": 0.48804956674575806, "sibling_score": 0.48804956674575806, "answer_score": null, "sibling_qid": "MUM-2022-11-0069-Q006", "sibling_text": "igg alarm and trip at what o2 alarm and trip", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What are the set values for the IG system alarms and trips — IG line high, low and low-low pressure, oxygen content, PV valve and breaker pressures?", "cross_family": true } ] }, { "qid": "KOC-2022-11-1210-Q003", "text": "Draw tube light construction with cross", "family": "Electrical - Distribution & MSB", "subtopic": "Lighting / Lamps", "tid": "KOC-2022-11-1210", "tray": "new", "candidates": [ { "answer_id": "LT-SRC-012", "score": 0.5598047971725464, "sibling_score": 0.5598047971725464, "answer_score": null, "sibling_qid": "KOC-2024-11-1436-Q004", "sibling_text": "tube connection onboard how you will connect five lights with one switch draw circuit for that", "sibling_family": "", "via": "sibling", "answer_title": "General lighting-source residual: multi-lamp wiring, location & emergency-source SOLAS", "cross_family": false }, { "answer_id": "ELEC-ELX-001", "score": 0.5482540726661682, "sibling_score": 0.5482540726661682, "answer_score": 0.3856154680252075, "sibling_qid": "KOL-2017-07-2141-Q006", "sibling_text": "circuit diagram of a household tubelight diagram to show", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Fluorescent and LED tube-light — choke and starter", "cross_family": true }, { "answer_id": "GZKN-P02-001", "score": 0.5426750183105469, "sibling_score": 0.5426750183105469, "answer_score": null, "sibling_qid": "KOC-2022-08-0084-Q003", "sibling_text": "draw cross curve", "sibling_family": "", "via": "sibling", "answer_title": "Cross curves of stability (KN curves) — draw, explain, and use to build the GZ curve", "cross_family": false } ] }, { "qid": "KOC-2022-11-1210-Q012", "text": "Gases detected by fixed gas detection system", "family": "Cargo Ops - Gas Carriers", "subtopic": "Gas Detection / Leak", "tid": "KOC-2022-11-1210", "tray": "review", "candidates": [ { "answer_id": "GAS-DET-001", "score": 0.839859664440155, "sibling_score": 0.839859664440155, "answer_score": 0.5739844322204589, "sibling_qid": "KOC-2024-06-0352-Q013", "sibling_text": "fixed gas detection system", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Fixed gas detection system on a gas carrier (cargo area / \"pump room\")", "cross_family": false }, { "answer_id": "PR-SAFE-A-002", "score": 0.7898586392402649, "sibling_score": 0.7898586392402649, "answer_score": 0.533471867442131, "sibling_qid": "KOC-2022-08-0082-Q007", "sibling_text": "fixed gas detection system", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Pump-room fixed gas detection and atmosphere monitoring", "cross_family": true }, { "answer_id": "GAS-DET-003", "score": 0.7415463328361511, "sibling_score": 0.7415463328361511, "answer_score": 0.5327678918838501, "sibling_qid": "CHE-2026-09-3934-Q005", "sibling_text": "multi gas detector function what are the gases", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Gas measuring instruments and what each one reads", "cross_family": false } ] }, { "qid": "KOC-2022-11-1211-Q004", "text": "Why Frequency is so important?", "family": "Electrical - Generator & Alternator", "subtopic": "Frequency", "tid": "KOC-2022-11-1211", "tray": "new", "candidates": [ { "answer_id": "ALT-GEN-P04-007", "score": 0.604059636592865, "sibling_score": 0.604059636592865, "answer_score": null, "sibling_qid": "KOC-2026-03-1729-Q004", "sibling_text": "frequency", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Frequency, poles, speed and 50/60 Hz relation", "cross_family": false }, { "answer_id": "RISK-RA-D-001", "score": 0.48201221227645874, "sibling_score": 0.48201221227645874, "answer_score": null, "sibling_qid": "KOL-2021-03-3388-Q002", "sibling_text": "what is frequency in engineering terms", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "", "cross_family": true }, { "answer_id": "FSH-DET-005", "score": 0.4596503674983978, "sibling_score": 0.4596503674983978, "answer_score": null, "sibling_qid": "KOC-2025-08-1568-Q011", "sibling_text": "maintenance for that frequency of interval", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Testing, planned maintenance, fault identification, isolation and circuit protection", "cross_family": true } ] }, { "qid": "KOC-2022-11-1212-Q002", "text": "Dol stater power circuit", "family": "Electrical - Motors & Starters", "subtopic": "Starter Panel / Control Circuit", "tid": "KOC-2022-11-1212", "tray": "review", "candidates": [ { "answer_id": "STR-DEC-A-001", "score": 0.7122889757156372, "sibling_score": 0.7122889757156372, "answer_score": null, "sibling_qid": "KOC-2024-11-1430-Q001", "sibling_text": "dol starter diagram current value", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "SDST-A-001", "score": 0.6873524785041809, "sibling_score": 0.6873524785041809, "answer_score": null, "sibling_qid": "KOC-2024-03-1338-Q002", "sibling_text": "star delta starter power circuit diagram", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false }, { "answer_id": "STARTER-DEC-B-002", "score": 0.6682825684547424, "sibling_score": 0.6682825684547424, "answer_score": null, "sibling_qid": "KOC-2024-11-1425-Q001", "sibling_text": "dol starting current how much", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Why a starter is needed & reducing starting current", "cross_family": false } ] }, { "qid": "KOC-2022-11-1796-Q001", "text": "Major overhaul clearances and checks and tests Piston calibration liner calibration Piston rod pressure test Ring groove geometry What all check in ring groove", "family": "2-Stroke - Components (Other)", "subtopic": "Piston Pressure Test", "tid": "KOC-2022-11-1796", "tray": "review", "candidates": [ { "answer_id": "PRING-CLR-A-002", "score": 0.8274989724159241, "sibling_score": 0.8274989724159241, "answer_score": 0.6496851861476898, "sibling_qid": "CHE-2021-07-0183-Q002", "sibling_text": "piston ring calibration other than clearances groove measurement", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston-ring clearances and calibration — butt, axial, radial, wear limits", "cross_family": false }, { "answer_id": "CYL-LINER-P01-001", "score": 0.8124625086784363, "sibling_score": 0.8124625086784363, "answer_score": null, "sibling_qid": "KOL-2023-11-3658-Q006", "sibling_text": "piston ring calibration liner calibration", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Carrying out main-engine liner calibration (gauging)", "cross_family": false }, { "answer_id": "CYL-LINER-P03-008", "score": 0.7804532647132874, "sibling_score": 0.7804532647132874, "answer_score": null, "sibling_qid": "KOL-2020-01-1514-Q002", "sibling_text": "liner checks after removal of piston", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Main-engine cylinder liner removal — full procedure, the lifting tool, and precautions", "cross_family": false } ] }, { "qid": "KOC-2022-11-1797-Q001", "text": "AE crankpin clearance", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Crankshaft / Crankpin / Bearings", "tid": "KOC-2022-11-1797", "tray": "review", "candidates": [ { "answer_id": "CRKPIN-P02-002", "score": 0.7006430625915527, "sibling_score": 0.7006430625915527, "answer_score": 0.5414886772632599, "sibling_qid": "KOL-2020-06-3340-Q002", "sibling_text": "u have 4 inch and 8 inch crank pin were u will measure the clearance", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankpin bearing clearance — measurement and interpretation", "cross_family": true }, { "answer_id": "AE-CRP-007", "score": 0.6951391100883484, "sibling_score": 0.6951391100883484, "answer_score": null, "sibling_qid": "MUM-2026-09-3971-Q013", "sibling_text": "ae bottom end bearing clearance", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE big-end / bottom-end bearing — inspection, bedding, nip and crush", "cross_family": false }, { "answer_id": "AECR-651-004", "score": 0.6808193922042847, "sibling_score": 0.6808193922042847, "answer_score": null, "sibling_qid": "MUM-2026-06-3353-Q004", "sibling_text": "ae bottom end bearing clearance hook up piston", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "How do you inspect the bottom-end bearing, and how do you take the AE big-end clearance without removing it?", "cross_family": false } ] }, { "qid": "KOC-2022-11-1798-Q004", "text": "Boiler safety valve setting? Draw top portion (he wants to see neck bushing and how the assembly is connected)", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2022-11-1798", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P01-001", "score": 0.6780921816825867, "sibling_score": 0.6780921816825867, "answer_score": null, "sibling_qid": "KOC-2026-08-2122-Q005", "sibling_text": "boiler safety valve setting in front of surveyor", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.6703314185142517, "sibling_score": 0.6703314185142517, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q012", "sibling_text": "draw top part of improved high lift safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "MR-DS-PV-B-006", "score": 0.6680033802986145, "sibling_score": 0.6680033802986145, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q005", "sibling_text": "full bore safety valve diagram", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "6. Deck isolating valve, deck relief/safety devices, and cargo-tank pressure", "cross_family": false } ] }, { "qid": "KOC-2022-12-0113-Q002", "text": "draw primary bilge tank", "family": "MARPOL - Annex I (Oil)", "subtopic": "Primary Bilge Tank", "tid": "KOC-2022-12-0113", "tray": "new", "candidates": [ { "answer_id": "SHELL-PLT-B-001", "score": 0.5906811952590942, "sibling_score": 0.5906811952590942, "answer_score": null, "sibling_qid": "MUM-2026-04-2958-Q002", "sibling_text": "show bilge keel shear strake duct keel double bottom tank cross section", "sibling_family": "", "via": "sibling", "answer_title": "Sheer strake — location, why strengthened, deck-edge / gunwale connection", "cross_family": false }, { "answer_id": "PCD-P04-05", "score": 0.5843578577041626, "sibling_score": 0.5843578577041626, "answer_score": null, "sibling_qid": "KOC-2026-09-2165-Q007", "sibling_text": "bucket type bilge pump drawing", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "05. Reciprocating pump — construction, working and how you know it is discharging", "cross_family": true }, { "answer_id": "BK-001", "score": 0.5806965827941895, "sibling_score": 0.5806965827941895, "answer_score": null, "sibling_qid": "KOC-2026-05-2128-Q003", "sibling_text": "bilge keel draw and explain", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "What is a bilge keel and what is its purpose?", "cross_family": true } ] }, { "qid": "KOC-2022-12-0116-Q002", "text": "Draw and explain relief valve for lpg cargo tank", "family": "Cargo Ops - Gas Carriers", "subtopic": "MARVS / Tank Type 1G/2G/3G", "tid": "KOC-2022-12-0116", "tray": "review", "candidates": [ { "answer_id": "MARVS-TANK-001", "score": 0.6754713654518127, "sibling_score": 0.6754713654518127, "answer_score": 0.568601793050766, "sibling_qid": "KOC-2025-11-0712-Q004", "sibling_text": "gas tanker safety valve working", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "MARVS — location, pressure setting, purpose, drawing and how the safety valve works", "cross_family": false }, { "answer_id": "CRD-001", "score": 0.6564083099365234, "sibling_score": 0.6564083099365234, "answer_score": null, "sibling_qid": "MUM-2026-09-3934-Q007", "sibling_text": "me relief valve opening pressure", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Construction, working & flame arrester of crankcase relief door", "cross_family": false }, { "answer_id": "LPG-LNG-004", "score": 0.651764452457428, "sibling_score": 0.651764452457428, "answer_score": null, "sibling_qid": "KOC-2022-11-1210-Q010", "sibling_text": "cargo tank pressure as i did lpg vessel", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Loading / discharging, tank pressure, pump and disconnection", "cross_family": false } ] }, { "qid": "KOC-2022-12-0116-Q003", "text": "Relief valve pressure setting", "family": "Cargo Ops - Gas Carriers", "subtopic": "MARVS / Tank Type 1G/2G/3G", "tid": "KOC-2022-12-0116", "tray": "review", "candidates": [ { "answer_id": "CRD-001", "score": 0.7874612212181091, "sibling_score": 0.7874612212181091, "answer_score": null, "sibling_qid": "MUM-2026-09-3934-Q007", "sibling_text": "me relief valve opening pressure", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Construction, working & flame arrester of crankcase relief door", "cross_family": false }, { "answer_id": "ECON-EGB-004", "score": 0.7051246762275696, "sibling_score": 0.7051246762275696, "answer_score": 0.5441163122653961, "sibling_qid": "KOC-2026-03-2019-Q005", "sibling_text": "safety valve setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Safety-valve setting after overhaul & why set higher than the boiler", "cross_family": true }, { "answer_id": "DCP-FIXED-A-003", "score": 0.7002275586128235, "sibling_score": 0.7002275586128235, "answer_score": null, "sibling_qid": "KOC-2025-01-0511-Q005", "sibling_text": "relief valves lifting pressure", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Capacities, pressures, relief settings, regulations and calculation", "cross_family": true } ] }, { "qid": "KOC-2022-12-0119-Q006", "text": "rudder carrier bearing", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOC-2022-12-0119", "tray": "review", "candidates": [ { "answer_id": "TRS-002", "score": 0.7671072483062744, "sibling_score": 0.7671072483062744, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "PRE-TEN-001", "score": 0.7643869519233704, "sibling_score": 0.7643869519233704, "answer_score": null, "sibling_qid": "MUM-2026-06-3504-Q007", "sibling_text": "rudder carrier bearing removal procedure", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Pre-stressing and pre-tensioning in main-engine bolting", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.7134100794792175, "sibling_score": 0.7134100794792175, "answer_score": 0.49507756233215333, "sibling_qid": "CHE-2026-02-0110-Q006", "sibling_text": "how rudder weight is carried key ans i said carrier bearing how it carrying explain", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false } ] }, { "qid": "KOC-2022-12-0121-Q001", "text": "Type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2022-12-0121", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8362665176391602, "sibling_score": 0.8362665176391602, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8014071583747864, "sibling_score": 0.8014071583747864, "answer_score": 0.5467351317405701, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.7999894022941589, "sibling_score": 0.7999894022941589, "answer_score": 0.5214929342269897, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "KOC-2022-12-0121-Q004", "text": "How freq changed in shaft gen", "family": "Electrical - Generator & Alternator", "subtopic": "Frequency", "tid": "KOC-2022-12-0121", "tray": "new", "candidates": [ { "answer_id": "SHAFT-GEN-002", "score": 0.6332690119743347, "sibling_score": 0.6332690119743347, "answer_score": 0.43152257800102234, "sibling_qid": "KOL-2025-09-2854-Q004", "sibling_text": "shaft generator main engine rpm is not same but frequency remains constant how and how it works", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Holding constant voltage and frequency when main-engine RPM varies", "cross_family": false }, { "answer_id": "ALT-GEN-P04-001", "score": 0.5330550074577332, "sibling_score": 0.5330550074577332, "answer_score": null, "sibling_qid": "KOL-2019-10-2341-Q005", "sibling_text": "shaft generator working", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Shaft generator - working and arrangement", "cross_family": false }, { "answer_id": "SHAFT-GEN-001", "score": 0.532314658164978, "sibling_score": 0.532314658164978, "answer_score": null, "sibling_qid": "KOC-2025-10-1601-Q008", "sibling_text": "shaft generator working", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Shaft generator — working, arrangement, components and function", "cross_family": false } ] }, { "qid": "KOC-2022-12-0122-Q002", "text": "Type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2022-12-0122", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8362665176391602, "sibling_score": 0.8362665176391602, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8014071583747864, "sibling_score": 0.8014071583747864, "answer_score": 0.5467351317405701, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.7999894022941589, "sibling_score": 0.7999894022941589, "answer_score": 0.5214929342269897, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "KOC-2022-12-0122-Q007", "text": "IMDG code explain", "family": "Other Conventions", "subtopic": "IMDG Code", "tid": "KOC-2022-12-0122", "tray": "review", "candidates": [ { "answer_id": "IMDG-002", "score": 0.7171710133552551, "sibling_score": 0.7171710133552551, "answer_score": 0.29108682572841643, "sibling_qid": "KOC-2023-05-0189-Q005", "sibling_text": "imdg code and explain all classes", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What are the classes and categories of cargo under the IMDG Code? 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Bulk carrier construction and structural design", "cross_family": false } ] }, { "qid": "KOC-2022-12-1213-Q011", "text": "Boiler safeties (want to hear pre-purging & post purging)", "family": "Boilers - Operations & Firing", "subtopic": "Pre-Purge", "tid": "KOC-2022-12-1213", "tray": "new", "candidates": [ { "answer_id": "BBF-621-001", "score": 0.6318817138671875, "sibling_score": 0.6318817138671875, "answer_score": null, "sibling_qid": "KOL-2019-05-1452-Q004", "sibling_text": "boiler blow back furnace f o system purging all are fine", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "What is boiler backfire / blowback? 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Protection & Relays", "via": "sibling", "answer_title": "Overload trip — activation, time delay and protection effect", "cross_family": false } ] }, { "qid": "KOC-2022-12-2037-Q004", "text": "Thermal protection", "family": "Electrical - Protection & Relays", "subtopic": "Overload Protection / Thermal Trip", "tid": "KOC-2022-12-2037", "tray": "new", "candidates": [ { "answer_id": "CB-ACBVCB-B-001", "score": 0.6479600667953491, "sibling_score": 0.6479600667953491, "answer_score": null, "sibling_qid": "MUM-2026-09-3986-Q006", "sibling_text": "thermal overload relay", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "ACB/main circuit breaker safeties, trips, settings and testing", "cross_family": false }, { "answer_id": "FUSE-HRC-003", "score": 0.6334637999534607, "sibling_score": 0.6334637999534607, "answer_score": null, "sibling_qid": "KOC-2025-10-1579-Q009", "sibling_text": "thermall fuse", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Specific fuse types: cartridge, rewireable, thermal, low-current", "cross_family": false }, { "answer_id": "INS-CLASS-002", "score": 0.6248568296432495, "sibling_score": 0.6248568296432495, "answer_score": null, "sibling_qid": "MUM-2026-09-3873-Q009", "sibling_text": "insulation class with working temp and hotspot temp", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What are the classes of insulation, their temperature limits and their materials?", "cross_family": true } ] }, { "qid": "KOC-2022-12-2037-Q005", "text": "Star connection", "family": "Electrical - Motors & Starters", "subtopic": "Star-Delta Starter", "tid": "KOC-2022-12-2037", "tray": "review", "candidates": [ { "answer_id": "SDST-A-001", "score": 0.7108107805252075, "sibling_score": 0.7108107805252075, "answer_score": 0.3409248247742653, "sibling_qid": "MUM-2022-08-1350-Q009", "sibling_text": "why star connected", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false }, { "answer_id": "SDC-001", "score": 0.33524286299943923, "sibling_score": null, "answer_score": 0.33524286299943923, "sibling_qid": "", "sibling_text": "why is the alternator star connected and the motor delta connected alternator star motor delta its running connection star gives a neutral point earthing and earth fault detection", "sibling_family": "", "via": "answer_title", "answer_title": "Why is the alternator star connected and the motor delta connected?", "cross_family": false }, { "answer_id": "SDST-D-001", "score": 0.31921438574790956, "sibling_score": null, "answer_score": 0.31921438574790956, "sibling_qid": "", "sibling_text": "requirements for star delta starting motor side criteria nameplate logic and terminal connections delta rating must equal line voltage delta is the normal running connection all six winding ends accessible u1 v1 w1 and u2 v2 w2", "sibling_family": "", "via": "answer_title", "answer_title": "Requirements for star-delta starting - motor-side criteria, nameplate logic and terminal connections.", "cross_family": false } ] }, { "qid": "KOC-2022-12-2037-Q006", "text": "Starter circuit of any motor", "family": "Electrical - Motors & Starters", "subtopic": "Star-Delta Starter", "tid": "KOC-2022-12-2037", "tray": "review", "candidates": [ { "answer_id": "SDST-A-001", "score": 0.7506247162818909, "sibling_score": 0.7506247162818909, "answer_score": null, "sibling_qid": "MUM-2026-03-1998-Q003", "sibling_text": "star delta starter circuit", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false }, { "answer_id": "STR-DEC-A-001", "score": 0.7405358552932739, "sibling_score": 0.7405358552932739, "answer_score": null, "sibling_qid": "KOC-2023-12-1312-Q007", "sibling_text": "motor starters", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "IMSP-004", "score": 0.7207708954811096, "sibling_score": 0.7207708954811096, "answer_score": null, "sibling_qid": "MUM-2026-03-1990-Q002", "sibling_text": "star delta starter components wanted to hear control circuit components and maintenance", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Explain the star-delta starter, and what you find inside it when you open it — its components.", "cross_family": false } ] }, { "qid": "KOC-2023-01-0124-Q001", "text": "Type of ship: oil and chemical tankers done", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2023-01-0124", "tray": "review", "candidates": [ { "answer_id": "IBC-BCH-B-004", "score": 0.7839517593383789, "sibling_score": 0.7839517593383789, "answer_score": null, "sibling_qid": "MUM-2026-05-3156-Q001", "sibling_text": "type of ships chemical tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Certificate of Fitness and MARPOL Annex II in practice", "cross_family": false }, { "answer_id": "BCH-IBC-A-001", "score": 0.7633042335510254, "sibling_score": 0.7633042335510254, "answer_score": 0.5499641478061675, "sibling_qid": "CHE-2026-03-0128-Q001", "sibling_text": "type of chemical tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type 1, Type 2 and Type 3 chemical tankers — the ship-type classification", "cross_family": false }, { "answer_id": "COT-01", "score": 0.739393413066864, "sibling_score": 0.739393413066864, "answer_score": 0.5722851634025573, "sibling_qid": "KOC-2026-04-0892-Q003", "sibling_text": "type of ship sailed tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Oil-tanker types, definitions and cargo capability", "cross_family": false } ] }, { "qid": "KOC-2023-01-0124-Q003", "text": "What all preparations will u do before u send a person to an enclosed space?", "family": "Risk & Safety Management", "subtopic": "Enclosed Space Entry", "tid": "KOC-2023-01-0124", "tray": "review", "candidates": [ { "answer_id": "ESE-P02-008", "score": 0.7411301136016846, "sibling_score": 0.7411301136016846, "answer_score": 0.5033430814743042, "sibling_qid": "KOL-2024-05-0834-Q004", "sibling_text": "checks prior to entry into enclosed space", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "ESE-P02-08. Before, during and after: confirming a space is safe to enter", "cross_family": false }, { "answer_id": "ESE-P01-003", "score": 0.6844143271446228, "sibling_score": 0.6844143271446228, "answer_score": 0.4764625132083893, "sibling_qid": "KOL-2020-11-0441-Q001", "sibling_text": "what are the things you ll keep in mind before making an enclosed space entry", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "General enclosed-space entry procedure as second engineer", "cross_family": false }, { "answer_id": "ESE-P01-009", "score": 0.6796401143074036, "sibling_score": 0.6796401143074036, "answer_score": null, "sibling_qid": "KOL-2019-07-0293-Q005", "sibling_text": "before entering enclose space what all checks o2 percentage name device used all other gases percentages", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "Atmosphere checks, gases to test and safe entry limits", "cross_family": false } ] }, { "qid": "KOC-2023-01-0124-Q005", "text": "What is ISM code...who implements it", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOC-2023-01-0124", "tray": "new", "candidates": [ { "answer_id": "ISM-ELEM-002", "score": 0.6376712918281555, "sibling_score": 0.6376712918281555, "answer_score": 0.378550785779953, "sibling_qid": "MUM-2026-06-3653-Q001", "sibling_text": "ism code", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the ISM Code?", "cross_family": false }, { "answer_id": "ISM-SMC-B-002", "score": 0.6032170653343201, "sibling_score": 0.6032170653343201, "answer_score": null, "sibling_qid": "KOC-2024-10-0426-Q006", "sibling_text": "ism code interim smc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Interim SMC — occasions, procedure and validity", "cross_family": false }, { "answer_id": "ISM-ELEM-003", "score": 0.4212141871452331, "sibling_score": null, "answer_score": 0.4212141871452331, "sibling_qid": "", "sibling_text": "elements chapters structure of the ism code part a implementation the 12 elements 1 general 1 1 definitions 1 2 objectives 1 3 application 1 4 functional requirements for an sms", "sibling_family": "", "via": "answer_title", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": false } ] }, { "qid": "KOC-2023-01-0125-Q001", "text": "Type of ship: oil and chemical tankers done.. Main Engine : KW Dead Weight:", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "KOC-2023-01-0125", "tray": "review", "candidates": [ { "answer_id": "IBC-BCH-B-004", "score": 0.6903042793273926, "sibling_score": 0.6903042793273926, "answer_score": null, "sibling_qid": "MUM-2026-05-3156-Q001", "sibling_text": "type of ships chemical tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Certificate of Fitness and MARPOL Annex II in practice", "cross_family": false }, { "answer_id": "TONN-003", "score": 0.6868282556533813, "sibling_score": 0.6868282556533813, "answer_score": null, "sibling_qid": "KOC-2025-11-0713-Q010", "sibling_text": "tanker dead weight", "sibling_family": "", "via": "sibling", "answer_title": "Deadweight Tonnage (DWT) — definition and calculation", "cross_family": false }, { "answer_id": "TKR-TYPE-003", "score": 0.6776575446128845, "sibling_score": 0.6776575446128845, "answer_score": null, "sibling_qid": "KOL-2017-02-0061-Q001", "sibling_text": "wat type of ships sailed on tanker types of tankers hw do we differentiate between two types of tankers dead weight range of all types", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "3. Tanker size classes — Panamax, Aframax, Suezmax, VLCC, ULCC", "cross_family": true } ] }, { "qid": "KOC-2023-01-0126-Q003", "text": "duties of 2nd engr in safcon survey", "family": "Surveys - Statutory", "subtopic": "Safety Construction / Cargo Safety Cert", "tid": "KOC-2023-01-0126", "tray": "review", "candidates": [ { "answer_id": "SVY-SCOPE-002", "score": 0.6706855893135071, "sibling_score": 0.6706855893135071, "answer_score": null, "sibling_qid": "MUM-2025-05-2800-Q005", "sibling_text": "safcon survey as 2nd engg", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is checked in the engine room during a SAFCON (Safety Construction) survey?", "cross_family": false }, { "answer_id": "SEQ-330-002", "score": 0.653071939945221, "sibling_score": 0.653071939945221, "answer_score": 0.43775961399078367, "sibling_qid": "KOC-2024-12-2058-Q003", "sibling_text": "explain seq survey preparations as a second engineer", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Preparing the ship for the Safety Equipment survey as Second Engineer", "cross_family": false }, { "answer_id": "ESP-B-001", "score": 0.6451402902603149, "sibling_score": 0.6451402902603149, "answer_score": null, "sibling_qid": "MUM-2024-08-1457-Q014", "sibling_text": "esp survey and as a 2 nd eng duties on esp survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "How an ESP survey is carried out — conduct, engine-room preparation & 2/E duties", "cross_family": false } ] }, { "qid": "KOC-2023-01-0126-Q012", "text": "difference between governor droop nd avr droop... Nd its affect on powerfactor nd many cross questions", "family": "Electrical - Generator & Alternator", "subtopic": "Voltage Dip / Droop", "tid": "KOC-2023-01-0126", "tray": "review", "candidates": [ { "answer_id": "GEN-LSI-B-001", "score": 0.7628450989723206, "sibling_score": 0.7628450989723206, "answer_score": null, "sibling_qid": "KOL-2025-08-2844-Q002", "sibling_text": "two generators same kw loading different current and power factor why avr droop", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01. Two alternators in parallel — same kW but different current and power factor: cause and correction", "cross_family": false }, { "answer_id": "AVRD-618-001", "score": 0.6974508166313171, "sibling_score": 0.6974508166313171, "answer_score": 0.5370238661766052, "sibling_qid": "KOC-2023-03-1249-Q007", "sibling_text": "what is avr droop", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "What is AVR droop, and why is it required?", "cross_family": false }, { "answer_id": "GOV-P03-002", "score": 0.6903567314147949, "sibling_score": 0.6903567314147949, "answer_score": 0.5056746363639831, "sibling_qid": "KOC-2022-01-1164-Q006", "sibling_text": "what is avr droop difference between avr droop and droop in governor", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Droop, isochronous operation and load sharing", "cross_family": true } ] }, { "qid": "KOC-2023-01-0128-Q002", "text": "Type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2023-01-0128", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8362351655960083, "sibling_score": 0.8362351655960083, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8017287850379944, "sibling_score": 0.8017287850379944, "answer_score": 0.5469861209392547, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8002189993858337, "sibling_score": 0.8002189993858337, "answer_score": 0.521619999408722, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "KOC-2023-01-0128-Q007", "text": "IMDG code explain", "family": "Other Conventions", "subtopic": "IMDG Code", "tid": "KOC-2023-01-0128", "tray": "review", "candidates": [ { "answer_id": "IMDG-002", "score": 0.7180846333503723, "sibling_score": 0.7180846333503723, "answer_score": 0.29140945374965666, "sibling_qid": "KOC-2023-05-0189-Q005", "sibling_text": "imdg code and explain all classes", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What are the classes and categories of cargo under the IMDG Code? Explain all nine", "cross_family": false }, { "answer_id": "IMDG-001", "score": 0.7007846832275391, "sibling_score": 0.7007846832275391, "answer_score": 0.2835148453712463, "sibling_qid": "KOC-2023-08-0212-Q007", "sibling_text": "imdg code content", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is the IMDG Code? Its contents, parts and supplements", "cross_family": false }, { "answer_id": "IMO-CODES-P03-001", "score": 0.2862752199172974, "sibling_score": null, "answer_score": 0.2862752199172974, "sibling_qid": "", "sibling_text": "important imo conventions and codes parent links", "sibling_family": "", "via": "answer_title", "answer_title": "Important IMO conventions and codes: parent links", "cross_family": false } ] }, { "qid": "KOC-2023-01-0129-Q003", "text": "compressor and motor room safeties?", "family": "Cargo Ops - Gas Carriers", "subtopic": "Cargo Compressor", "tid": "KOC-2023-01-0129", "tray": "review", "candidates": [ { "answer_id": "IGC-GAS-013", "score": 0.7738406658172607, "sibling_score": 0.7738406658172607, "answer_score": 0.5392307877540589, "sibling_qid": "KOL-2023-10-0776-Q008", "sibling_text": "safety of compressor and motor room motor room high pressure than compressor room", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Cargo machinery air-lock, gas-tight separation and over-pressure protection", "cross_family": false }, { "answer_id": "REEF-COMP-001", "score": 0.7145897150039673, "sibling_score": 0.7145897150039673, "answer_score": null, "sibling_qid": "MUM-2026-07-3671-Q008", "sibling_text": "safeties on compressor", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Reefer/AC compressor safeties and cut-outs — safety valve, HP and LP cut-outs", "cross_family": false }, { "answer_id": "IGC-GAS-012", "score": 0.6834537386894226, "sibling_score": 0.6834537386894226, "answer_score": 0.6461017251014709, "sibling_qid": "CHE-2025-12-0326-Q002", "sibling_text": "2 safeties in compressor room and motor room in lng ships what is fusible plug", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Compressor-room and motor-room safeties (including the fusible plug)", "cross_family": false } ] }, { "qid": "KOC-2023-01-0129-Q010", "text": "oil record book entry E,F,G,H,I?", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "KOC-2023-01-0129", "tray": "review", "candidates": [ { "answer_id": "ORB-IOPP-OWS-002", "score": 0.6788549423217773, "sibling_score": 0.6788549423217773, "answer_score": 0.4291013479232788, "sibling_qid": "MUM-2026-06-3584-Q008", "sibling_text": "oil record book entries", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "The Oil Record Book Part I — purpose, the letter codes, and how entries are made", "cross_family": false }, { "answer_id": "EEDI-C-003", "score": 0.5155201554298401, "sibling_score": 0.5155201554298401, "answer_score": null, "sibling_qid": "KOL-2019-09-0323-Q004", "sibling_text": "eedi and seemp file what parameters noted in it as per engine room operations didn t understand 5 fuel oil consumption filing a requirement now what all parameters will u record as 2e", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "How EEDI sits against EEXI, CII and SEEMP", "cross_family": true }, { "answer_id": "OWS-ORB-006", "score": 0.49573230743408203, "sibling_score": 0.49573230743408203, "answer_score": 0.37665752470493313, "sibling_qid": "MUM-2024-07-0181-Q008", "sibling_text": "orb part 1 and part 2 entries tell me about bulk lube oil entry", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "6. Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": false } ] }, { "qid": "KOC-2023-01-0129-Q011", "text": "missing entry in orb? Paul sir- Fixed DCP maintenance and working?", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "KOC-2023-01-0129", "tray": "new", "candidates": [ { "answer_id": "DCP-PPC-003", "score": 0.5882707834243774, "sibling_score": 0.5882707834243774, "answer_score": 0.32678365558385847, "sibling_qid": "KOC-2025-01-0511-Q006", "sibling_text": "maintenance on dcp", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "C3 — DCP — General Working, Advantages, Disadvantages & Common Issues", "cross_family": true }, { "answer_id": "DCP-B-001", "score": 0.5508241057395935, "sibling_score": 0.5508241057395935, "answer_score": 0.393502476811409, "sibling_qid": "CHE-2025-11-0081-Q005", "sibling_text": "maintenance in fixed dcp", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fixed DCP system — maintenance, agitation, sampling and survey preparation", "cross_family": true }, { "answer_id": "DCP-FIXED-A-001", "score": 0.5282688140869141, "sibling_score": 0.5282688140869141, "answer_score": null, "sibling_qid": "CHE-2026-03-0130-Q002", "sibling_text": "fixed dcp", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Draw and explain the fixed DCP/dry-powder deck fire-fighting system", "cross_family": true } ] }, { "qid": "KOC-2023-01-0130-Q001", "text": "Safcon survey", "family": "Surveys - Statutory", "subtopic": "Safety Construction / Cargo Safety Cert", "tid": "KOC-2023-01-0130", "tray": "new", "candidates": [ { "answer_id": "SVY-SCOPE-002", "score": 0.5711972117424011, "sibling_score": 0.5711972117424011, "answer_score": null, "sibling_qid": "MUM-2025-05-2800-Q005", "sibling_text": "safcon survey as 2nd engg", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is checked in the engine room during a SAFCON (Safety Construction) survey?", "cross_family": false }, { "answer_id": "CERT-LIST-P02-003", "score": 0.5604294538497925, "sibling_score": 0.5604294538497925, "answer_score": null, "sibling_qid": "KOC-2025-01-2059-Q008", "sibling_text": "cof and cof related surveys internal", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Certificates that decide ship type and permitted cargo", "cross_family": false }, { "answer_id": "AFS-309-003", "score": 0.519803524017334, "sibling_score": 0.519803524017334, "answer_score": null, "sibling_qid": "KOC-2023-12-0252-Q005", "sibling_text": "how is survey related to afs carried out", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "IAFS Certificate, survey, validity and drydock compliance", "cross_family": true } ] }, { "qid": "KOC-2023-01-0130-Q009", "text": "sea trail checks except main engine Some more I don't remember, but all his repeated questions only", "family": "Surveys - Statutory", "subtopic": "Surveys - General", "tid": "KOC-2023-01-0130", "tray": "new", "candidates": [ { "answer_id": "DUS-P2-02", "score": 0.6288009881973267, "sibling_score": 0.6288009881973267, "answer_score": null, "sibling_qid": "KOC-2025-08-1048-Q003", "sibling_text": "what are checks during sea trial which are not related to main engine", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Sea-trial checks after drydock — items not related to the main engine", "cross_family": true }, { "answer_id": "ESP-B-001", "score": 0.5494287610054016, "sibling_score": 0.5494287610054016, "answer_score": null, "sibling_qid": "MUM-2025-07-0355-Q006", "sibling_text": "what is esp and application of which ships and frequency and what are the things they will check in engine room", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "How an ESP survey is carried out — conduct, engine-room preparation & 2/E duties", "cross_family": false }, { "answer_id": "PSC-RO-P02-006", "score": 0.5489040017127991, "sibling_score": 0.5489040017127991, "answer_score": null, "sibling_qid": "KOL-2019-01-0253-Q003", "sibling_text": "what are the psc checks in paint locker and what are the checks for e r bilge pump", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What does a PSC inspection check on board?", "cross_family": false } ] }, { "qid": "KOC-2023-01-0132-Q001", "text": "Type of ship- gas tanker", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2023-01-0132", "tray": "review", "candidates": [ { "answer_id": "LPG-LNG-009", "score": 0.8172951936721802, "sibling_score": 0.8172951936721802, "answer_score": null, "sibling_qid": "MUM-2026-01-0682-Q001", "sibling_text": "type of ship lng tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Gas-carrier fundamentals and ship-specific traps", "cross_family": false }, { "answer_id": "COT-01", "score": 0.7734742760658264, "sibling_score": 0.7734742760658264, "answer_score": 0.5505883783102036, "sibling_qid": "KOC-2026-04-0892-Q003", "sibling_text": "type of ship sailed tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Oil-tanker types, definitions and cargo capability", "cross_family": false }, { "answer_id": "IBC-BCH-B-004", "score": 0.7630855441093445, "sibling_score": 0.7630855441093445, "answer_score": null, "sibling_qid": "MUM-2026-05-3156-Q001", "sibling_text": "type of ships chemical tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Certificate of Fitness and MARPOL Annex II in practice", "cross_family": false } ] }, { "qid": "KOC-2023-01-0132-Q003", "text": "Construction and working of relief valve , gas tanker cargo tank", "family": "Cargo Ops - 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The multimeter — construction, internal circuit, and how one instrument reads several different parameters", "cross_family": false } ] }, { "qid": "KOC-2023-01-0135-Q002", "text": "Stern frame diagram", "family": "Ship Construction & Stability", "subtopic": "Stern Frame / Transom", "tid": "KOC-2023-01-0135", "tray": "review", "candidates": [ { "answer_id": "DUS-P5-03", "score": 0.7883881330490112, "sibling_score": 0.7883881330490112, "answer_score": 0.5380497604608535, "sibling_qid": "KOC-2021-07-0010-Q005", "sibling_text": "stern frame diagram", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Stern frame construction, cross-section and rudder-axis sketch", "cross_family": true }, { "answer_id": "SPR-STERN-002", "score": 0.7332562208175659, "sibling_score": 0.7332562208175659, "answer_score": null, "sibling_qid": "KOC-2022-08-0083-Q001", "sibling_text": "draw stern frame show arrangement how stern tube is supported on fwd area of stern frame", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Propeller draw & dry-dock blade repair", "cross_family": true }, { "answer_id": "STS-P02-003", "score": 0.6787076592445374, "sibling_score": 0.6787076592445374, "answer_score": 0.510390031337738, "sibling_qid": "KOC-2023-01-1806-Q011", "sibling_text": "stern tube diagram", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "STS-P02-03 - Stern tube arrangement, fitting in hull and shaft support", "cross_family": true } ] }, { "qid": "KOC-2023-01-0137-Q006", "text": "Draw stern section of the ship and explain parts. I explained about stern frame", "family": "Ship Construction & Stability", "subtopic": "Stern Frame / Transom", "tid": "KOC-2023-01-0137", "tray": "review", "candidates": [ { "answer_id": "SPR-STERN-002", "score": 0.7554978132247925, "sibling_score": 0.7554978132247925, "answer_score": null, "sibling_qid": "KOC-2022-08-0083-Q001", "sibling_text": "draw stern frame show arrangement how stern tube is supported on fwd area of stern frame", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Propeller draw & dry-dock blade repair", "cross_family": true }, { "answer_id": "DUS-P5-03", "score": 0.7498190999031067, "sibling_score": 0.7498190999031067, "answer_score": 0.6114450514316558, "sibling_qid": "CHE-2026-02-0105-Q005", "sibling_text": "transom stern explain", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Stern frame construction, cross-section and rudder-axis sketch", "cross_family": false }, { "answer_id": "SHELL-PLT-A-001", "score": 0.6919957399368286, "sibling_score": 0.6919957399368286, "answer_score": null, "sibling_qid": "KOC-2025-02-0543-Q006", "sibling_text": "shell expansion plan draw stern side without propeller and rudder int", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "The shell expansion plan, and how you identify a plate", "cross_family": true } ] }, { "qid": "KOC-2023-01-0138-Q002", "text": "Enclosed space entry", "family": "Risk & Safety Management", "subtopic": "Enclosed Space Entry", "tid": "KOC-2023-01-0138", "tray": "review", "candidates": [ { "answer_id": "ESE-P01-003", "score": 0.8050418496131897, "sibling_score": 0.8050418496131897, "answer_score": 0.34975547492504117, "sibling_qid": "CHE-2026-04-0163-Q012", "sibling_text": "enclose space entry checks", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "General enclosed-space entry procedure as second engineer", "cross_family": false }, { "answer_id": "ESE-P02-008", "score": 0.73070228099823, "sibling_score": 0.73070228099823, "answer_score": null, "sibling_qid": "KOL-2019-03-0272-Q003", "sibling_text": "enclose space pre entry during entry after completion check", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "ESE-P02-08. Before, during and after: confirming a space is safe to enter", "cross_family": false }, { "answer_id": "ESE-P01-001", "score": 0.3637171924114227, "sibling_score": null, "answer_score": 0.3637171924114227, "sibling_qid": "", "sibling_text": "definition and criteria of an enclosed space enclosed space a space that may contain a hazardous atmosphere or lack oxygen and has any of these characteristics limited openings inadequate ventilation or not designed for continuous human occupancy any one suffices imo msc 581 110 definition 2 1 in force 3 december 2025 revoking a 1050 27 the danger is the atmosphere oxygen deficiency oxygen enrichm", "sibling_family": "", "via": "answer_title", "answer_title": "Definition and criteria of an enclosed space", "cross_family": false } ] }, { "qid": "KOC-2023-01-0138-Q007", "text": "Fuel Oil tank enclosed space entry", "family": "Risk & Safety Management", "subtopic": "Enclosed Space Entry", "tid": "KOC-2023-01-0138", "tray": "review", "candidates": [ { "answer_id": "ESE-P01-004", "score": 0.7439388036727905, "sibling_score": 0.7439388036727905, "answer_score": 0.5527141362428665, "sibling_qid": "MUM-2023-03-0087-Q008", "sibling_text": "f o bunker tank enclosed space entry", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "Fuel-oil, settling, bunker or double-bottom tank entry and inspection", "cross_family": false }, { "answer_id": "ESE-P01-005", "score": 0.7005171775817871, "sibling_score": 0.7005171775817871, "answer_score": null, "sibling_qid": "KOC-2026-04-0901-Q015", "sibling_text": "enclosed space entry procedure to cargo tank", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "Cargo tank, pump-room, ballast tank or duct-keel entry preparation", "cross_family": false }, { "answer_id": "ESE-P01-003", "score": 0.6557840704917908, "sibling_score": 0.6557840704917908, "answer_score": null, "sibling_qid": "KOL-2019-08-0315-Q005", "sibling_text": "enclosed space entry", 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rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "TRS-002", "score": 0.6036649346351624, "sibling_score": 0.6036649346351624, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "SPR-STERN-007", "score": 0.5331974029541016, "sibling_score": 0.5331974029541016, "answer_score": 0.44553967118263244, "sibling_qid": "KOL-2016-09-0014-Q002", "sibling_text": "how load of the rudder taking care and cross qst", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Rudder types, area, construction, load support & turning", "cross_family": true } ] }, { "qid": "KOC-2023-01-0142-Q007", "text": "Type of rudder in ship and how its turn the ship", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOC-2023-01-0142", "tray": "review", "candidates": [ { "answer_id": "SPR-STERN-006", "score": 0.6962321400642395, "sibling_score": 0.6962321400642395, "answer_score": null, "sibling_qid": "MUM-2026-05-3201-Q001", "sibling_text": "type of rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Propeller types & special propulsors", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.6677956581115723, "sibling_score": 0.6677956581115723, "answer_score": null, "sibling_qid": "KOC-2026-04-0891-Q002", "sibling_text": "rudder after dock", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "TLM-218-001", "score": 0.6554654836654663, "sibling_score": 0.6554654836654663, "answer_score": null, "sibling_qid": "KOL-2019-02-1440-Q002", "sibling_text": "rudder control from bridge to steering gear room", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Helm order from bridge to rudder — the full sequence", "cross_family": false } ] }, { "qid": "KOC-2023-01-0142-Q008", "text": "Rudder alignment", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOC-2023-01-0142", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.7042262554168701, "sibling_score": 0.7042262554168701, "answer_score": null, "sibling_qid": "KOL-2017-07-3075-Q002", "sibling_text": "rudder inspection all clearances wear down clearance rudder alignment cross questions", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and 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What the PSCO checks after coming aboard, and how the inspection is conducted", "cross_family": false }, { "answer_id": "PSC-002", "score": 0.7126391530036926, "sibling_score": 0.7126391530036926, "answer_score": 0.5039774447679519, "sibling_qid": "MUM-2026-04-0876-Q008", "sibling_text": "criteria of psc inspection", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "2. Types, criteria and escalation of a PSC inspection", "cross_family": false }, { "answer_id": "PSC-004", "score": 0.7083960175514221, "sibling_score": 0.7083960175514221, "answer_score": null, "sibling_qid": "MUM-2026-04-0876-Q007", "sibling_text": "psc inspection procedure and documents required if any", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "4. 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Explain title 2", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOC-2023-02-0149", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.653442919254303, "sibling_score": 0.653442919254303, "answer_score": 0.23622483760118484, "sibling_qid": "KOC-2026-05-2135-Q011", "sibling_text": "mlc titles explain title 1 explain dmlc part 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "SOLAS-CH-003", "score": 0.4282015562057495, "sibling_score": 0.4282015562057495, "answer_score": null, "sibling_qid": "KOC-2025-05-2065-Q008", "sibling_text": "explain solas chapter 2 of 2", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS Chapter II-2 - fire protection, detection and extinction", "cross_family": true }, { "answer_id": "ISM-2E-A-001", "score": 0.4195112884044647, "sibling_score": 0.4195112884044647, "answer_score": null, "sibling_qid": "CHE-2026-04-0163-Q018", "sibling_text": "role of 2e in mlc and ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Roles, duties and responsibilities of a Second Engineer under ISM/SMS", "cross_family": true } ] }, { "qid": "KOC-2023-02-0149-Q008", "text": "Dmlc1 and dmlc2", "family": "MLC", "subtopic": "MLC / DMLC / Work-Rest", "tid": "KOC-2023-02-0149", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.787510335445404, "sibling_score": 0.787510335445404, "answer_score": 0.28093364387750625, "sibling_qid": "MUM-2026-07-3684-Q001", "sibling_text": "dmlc1 and dmlc2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "SB-RATIO-002", "score": 0.2589258074760437, "sibling_score": null, "answer_score": 0.2589258074760437, "sibling_qid": "", "sibling_text": "differentiate short long super long and ultra long stroke engines with the exact ratio of each what is s and what is l k short stroke k98mc c 980 2 400 2 45 k98mc 980 2 660 2 71 k80mc c 800 2 300 2 88 l long stroke l70mc 700 2 268 3 24 l80mc 800 2 592 3 24 l70mc c 700 2 360 3 37", "sibling_family": "", "via": "answer_title", "answer_title": "Differentiate short, long, super-long and ultra-long stroke engines, with the exact ratio of each. 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LSA & Lifeboats", "subtopic": "Pyrotechnics / Flares", "tid": "KOC-2023-02-0150", "tray": "review", "candidates": [ { "answer_id": "LB-D-001", "score": 0.6909529566764832, "sibling_score": 0.6909529566764832, "answer_score": null, "sibling_qid": "KOL-2017-01-0045-Q005", "sibling_text": "life boat lowering procedure not drill actual emergency", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Davit-launched lifeboat — lowering & launching (drill and actual emergency)", "cross_family": false }, { "answer_id": "LB-D-004", "score": 0.6801538467407227, "sibling_score": 0.6801538467407227, "answer_score": null, "sibling_qid": "KOL-2020-10-0428-Q008", "sibling_text": "lifeboat lowering produres primary and secondary methods of launching duration of life boat lowering as per solas special", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Primary and secondary means of launching", "cross_family": false }, { "answer_id": "DRG-B-007", "score": 0.6705911755561829, "sibling_score": 0.6705911755561829, "answer_score": null, "sibling_qid": "KOC-2023-01-0136-Q004", "sibling_text": "lifeboat lowering procedure gravity davit type", "sibling_family": "SOLAS - 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Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.723500669002533, "sibling_score": 0.723500669002533, "answer_score": null, "sibling_qid": "KOC-2026-08-2122-Q005", "sibling_text": "boiler safety valve setting in front of surveyor", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.7135565876960754, "sibling_score": 0.7135565876960754, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q012", "sibling_text": "draw top part of improved high lift safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOC-2023-03-0152-Q001", "text": "Type of Ship--- bulk carrier", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2023-03-0152", "tray": "review", "candidates": [ { "answer_id": "SOLAS12-BC-A-001", "score": 0.8663457632064819, "sibling_score": 0.8663457632064819, "answer_score": 0.5891669988632202, "sibling_qid": "MUM-2026-06-3382-Q001", "sibling_text": "type of ship sailed bulk carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "SOLAS definition and scope of a bulk carrier", "cross_family": false }, { "answer_id": "SOLAS-XII-BC-002", "score": 0.7810255885124207, "sibling_score": 0.7810255885124207, "answer_score": null, "sibling_qid": "KOC-2026-09-2208-Q005", "sibling_text": "bulk carrier as per solas", "sibling_family": "Cargo Ops - 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Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "TRS-002", "score": 0.6529379487037659, "sibling_score": 0.6529379487037659, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "PRE-TEN-001", "score": 0.6383691430091858, "sibling_score": 0.6383691430091858, "answer_score": null, "sibling_qid": "MUM-2026-06-3504-Q007", "sibling_text": "rudder carrier bearing removal procedure", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Pre-stressing and pre-tensioning in main-engine bolting", "cross_family": false } ] }, { "qid": "KOC-2023-03-0161-Q005", "text": "What is Electronic ORB?? What is more in it compared with normal ORB?", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "KOC-2023-03-0161", "tray": "new", "candidates": [ { "answer_id": "ORB-IOPP-OWS-002", "score": 0.5030977725982666, "sibling_score": 0.5030977725982666, "answer_score": null, "sibling_qid": "CHE-2026-05-0543-Q003", "sibling_text": "orb in details", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "The Oil Record Book Part I — purpose, the letter codes, and how entries are made", "cross_family": false }, { "answer_id": "OWS-ORB-006", "score": 0.43507981300354004, "sibling_score": 0.43507981300354004, "answer_score": null, "sibling_qid": "MUM-2025-09-0447-Q007", "sibling_text": "orb entries", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "6. Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": false }, { "answer_id": "TEV-TXV-004", "score": 0.3716591000556946, "sibling_score": 0.3716591000556946, "answer_score": null, "sibling_qid": "CHE-2026-02-0480-Q003", "sibling_text": "electronic tev working", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Electronic expansion valve (electronic TEV)", "cross_family": true } ] }, { "qid": "KOC-2023-03-0162-Q006", "text": "Rudder carrier bearing. 6 . AFS and mepc 78 what if says", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOC-2023-03-0162", "tray": "new", "candidates": [ { "answer_id": "TRS-002", "score": 0.6405470967292786, "sibling_score": 0.6405470967292786, "answer_score": null, "sibling_qid": "KOC-2026-03-1108-Q008", "sibling_text": "how rudder stock and carrier bearing is attached told 2 half fitted bolts x does bearing turn with rudder i told yes then he told that there are 2 types one turn with rudder other dont turn with rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "PRE-TEN-001", "score": 0.6230224967002869, "sibling_score": 0.6230224967002869, "answer_score": null, "sibling_qid": "MUM-2026-06-3504-Q007", "sibling_text": "rudder carrier bearing removal procedure", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Pre-stressing and pre-tensioning in main-engine bolting", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.5861861705780029, "sibling_score": 0.5861861705780029, "answer_score": 0.3742157757282257, "sibling_qid": "CHE-2026-02-0110-Q006", "sibling_text": "how rudder weight is carried key ans i said carrier bearing how it carrying explain", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false } ] }, { "qid": "KOC-2023-03-0163-Q001", "text": "Type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2023-03-0163", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.836493194103241, "sibling_score": 0.836493194103241, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.801879346370697, "sibling_score": 0.801879346370697, "answer_score": 0.547000914812088, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8004297018051147, "sibling_score": 0.8004297018051147, "answer_score": 0.5217102825641632, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "KOC-2023-03-0166-Q006", "text": "Difference of E/R & Deck Sounding pipes and closing arrangements?", "family": "SOLAS - Watertight & Closing Appliances", "subtopic": "Weather Tight", "tid": "KOC-2023-03-0166", "tray": "new", "candidates": [ { "answer_id": "MR-DS-PV-B-003", "score": 0.4309741258621216, "sibling_score": 0.4309741258621216, "answer_score": null, "sibling_qid": "MUM-2025-08-0415-Q001", "sibling_text": "deck seal function and valves before after deck seal", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "3. Alarms, trips, valves, and abnormal conditions of the deck seal", "cross_family": true }, { "answer_id": "WEATH-545-001", "score": 0.417202353477478, "sibling_score": 0.417202353477478, "answer_score": null, "sibling_qid": "KOL-2021-10-0569-Q001", "sibling_text": "water tight and weather tight door difference where fitted", "sibling_family": "SOLAS - Watertight & Closing Appliances", "via": "sibling", "answer_title": "What is weathertight, and how does it differ from watertight — meaning, application, location and testing?", "cross_family": false }, { "answer_id": "MR-DS-PV-B-006", "score": 0.4114546775817871, "sibling_score": 0.4114546775817871, "answer_score": null, "sibling_qid": "MUM-2026-03-0853-Q002", "sibling_text": "function of deck isolation valve on deck", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "6. Deck isolating valve, deck relief/safety devices, and cargo-tank pressure", "cross_family": true } ] }, { "qid": "KOC-2023-03-0167-Q005", "text": "MLC explain- explained 5titles", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOC-2023-03-0167", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.5807899236679077, "sibling_score": 0.5807899236679077, "answer_score": 0.26437755227088927, "sibling_qid": "KOC-2026-05-2135-Q011", "sibling_text": "mlc titles explain title 1 explain dmlc part 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "CLC-CIV-B-003", "score": 0.4282166063785553, "sibling_score": 0.4282166063785553, "answer_score": null, "sibling_qid": "KOL-2020-02-0392-Q002", "sibling_text": "llmc prescise 5 words", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "LLMC: purpose, scope and limitation of maritime claims", "cross_family": true }, { "answer_id": "MLC-WRH-B-006", "score": 0.4216044545173645, "sibling_score": 0.4216044545173645, "answer_score": null, "sibling_qid": "MUM-2026-07-3680-Q005", "sibling_text": "what is mlc certificate under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false } ] }, { "qid": "KOC-2023-03-0171-Q004", "text": "Draw Bulbus bow", "family": "", "subtopic": "Bulbous Bow", "tid": "KOC-2023-03-0171", "tray": "new", "candidates": [ { "answer_id": "FWFB-P02-005", "score": 0.4615345001220703, "sibling_score": 0.4615345001220703, "answer_score": 0.3388255387544632, "sibling_qid": "KOL-2016-05-0002-Q002", "sibling_text": "bulb angle what are the places draw", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Other members: breast hook, bulb angle, cross tie, margin / coffin / shoe plates", "cross_family": false }, { "answer_id": "PPS-230-006", "score": 0.4339463710784912, "sibling_score": 0.4339463710784912, "answer_score": 0.29790325462818146, "sibling_qid": "MUM-2026-02-0782-Q011", "sibling_text": "bulbous bow how it is connected to ship shape of bow", "sibling_family": "", "via": "sibling", "answer_title": "Fore-end / fore-peak structure: draw and describe", "cross_family": false }, { "answer_id": "LOLL-P02-004", "score": 0.40761566162109375, "sibling_score": 0.40761566162109375, "answer_score": null, "sibling_qid": "MUM-2026-02-0782-Q008", "sibling_text": "draw gz curve showing angle of loll", "sibling_family": "", "via": "sibling", "answer_title": "3. Angle of loll on the GZ curve — the GM condition", "cross_family": false } ] }, { "qid": "KOC-2023-03-0171-Q007", "text": "Mlc titles and explain minimum requirements for seafarer to work on ship", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOC-2023-03-0171", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-004", "score": 0.6090254187583923, "sibling_score": 0.6090254187583923, "answer_score": null, "sibling_qid": "KOC-2022-01-0051-Q006", "sibling_text": "young seafarer as 2e what to ensure explained him about the mlc work and rest hours and also the night work criteria as second eng will not allow young seafarer to do critical jobs alone", "sibling_family": "MLC", "via": "sibling", "answer_title": "Young seafarers — minimum age, night work, and what the 2/E must ensure", "cross_family": false }, { "answer_id": "IMO-CODES-P03-001", "score": 0.5516377687454224, "sibling_score": 0.5516377687454224, "answer_score": null, "sibling_qid": "KOC-2025-08-0643-Q007", "sibling_text": "why marpol solas mlc stcw 6", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Important IMO conventions and codes: parent links", "cross_family": true }, { "answer_id": "STCW-MAN-008", "score": 0.5270956754684448, "sibling_score": 0.5270956754684448, "answer_score": null, "sibling_qid": "KOC-2024-11-0472-Q007", "sibling_text": "stcw ch v he needs training requirements other than tankers and passenger ships", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Explain STCW Chapter V and its special training requirements — including which chapter applies to a gas tanker, and what is required other than for tankers and passenger ships.", "cross_family": true } ] }, { "qid": "KOC-2023-03-0173-Q004", "text": "IMDG code", "family": "Other Conventions", "subtopic": "IMDG Code", "tid": "KOC-2023-03-0173", "tray": "review", "candidates": [ { "answer_id": "IMDG-001", "score": 0.785642147064209, "sibling_score": 0.785642147064209, "answer_score": 0.3110092580318451, "sibling_qid": "KOC-2023-08-0212-Q007", "sibling_text": "imdg code content", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is the IMDG Code? Its contents, parts and supplements", "cross_family": false }, { "answer_id": "IMDG-002", "score": 0.7306370139122009, "sibling_score": 0.7306370139122009, "answer_score": 0.3024097621440887, "sibling_qid": "KOC-2025-07-0619-Q002", "sibling_text": "imdg code classes", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What are the classes and categories of cargo under the IMDG Code? Explain all nine", "cross_family": false }, { "answer_id": "IMO-CODES-P03-001", "score": 0.33014118075370785, "sibling_score": null, "answer_score": 0.33014118075370785, "sibling_qid": "", "sibling_text": "important imo conventions and codes parent links", "sibling_family": "", "via": "answer_title", "answer_title": "Important IMO conventions and codes: parent links", "cross_family": false } ] }, { "qid": "KOC-2023-03-0173-Q009", "text": "What all things will discuss in safety committee meeting onboard", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOC-2023-03-0173", "tray": "new", "candidates": [ { "answer_id": "MR-DS-PV-B-003", "score": 0.5792994499206543, "sibling_score": 0.5792994499206543, "answer_score": null, "sibling_qid": "MUM-2026-07-3676-Q003", "sibling_text": "safeties onboard", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "3. Alarms, trips, valves, and abnormal conditions of the deck seal", "cross_family": true }, { "answer_id": "TNK-SAFE-BF26-003", "score": 0.579155683517456, "sibling_score": 0.579155683517456, "answer_score": null, "sibling_qid": "MUM-2026-04-0883-Q002", "sibling_text": "safeties onboard", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "What safeties, including electrical safeties and Ex ratings, are provided on the deck of a tanker?", "cross_family": true }, { "answer_id": "RCA-INC-002", "score": 0.5753406286239624, "sibling_score": 0.5753406286239624, "answer_score": null, "sibling_qid": "KOL-2020-02-0385-Q005", "sibling_text": "what do you mean by a near miss and how is it different from an accident if you have a near miss on board what are the proper steps to be taken in order for it not to happen again answer with respect to ism code", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "RCA-INC-02 — Near miss — what it is, how it differs from an accident, and what to do about one on board", "cross_family": false } ] }, { "qid": "KOC-2023-03-0174-Q002", "text": "Abandon ship drill regulation", "family": "SOLAS - LSA & Lifeboats", "subtopic": "LSA Code", "tid": "KOC-2023-03-0174", "tray": "review", "candidates": [ { "answer_id": "LB-D-001", "score": 0.6943930387496948, "sibling_score": 0.6943930387496948, "answer_score": null, "sibling_qid": "KOL-2017-01-0045-Q005", "sibling_text": "life boat lowering procedure not drill actual emergency", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Davit-launched lifeboat — lowering & launching (drill and actual emergency)", "cross_family": false }, { "answer_id": "SOLAS-CH-004", "score": 0.6598925590515137, "sibling_score": 0.6598925590515137, "answer_score": 0.4987705588340759, "sibling_qid": "KOC-2024-11-0445-Q002", "sibling_text": "solas requirements of drills and specifically ask about regulation number", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS Chapter III - drills and life-saving appliances", "cross_family": true }, { "answer_id": "LB-D-010", "score": 0.6412312388420105, "sibling_score": 0.6412312388420105, "answer_score": 0.48270046114921566, "sibling_qid": "CHE-2025-08-0057-Q006", "sibling_text": "lifeboat drill criteria po deciding question", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat drills — criteria, training and equipment tested", "cross_family": false } ] }, { "qid": "KOC-2023-03-0174-Q005", "text": "IMDG code", "family": "Other Conventions", "subtopic": "IMDG Code", "tid": "KOC-2023-03-0174", "tray": "review", "candidates": [ { "answer_id": "IMDG-001", "score": 0.7848650813102722, "sibling_score": 0.7848650813102722, "answer_score": 0.310925155878067, "sibling_qid": "KOC-2023-08-0212-Q007", "sibling_text": "imdg code content", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is the IMDG Code? 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What all are its significance?", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "KOC-2023-03-0175", "tray": "new", "candidates": [ { "answer_id": "ORB-IOPP-OWS-002", "score": 0.5253313183784485, "sibling_score": 0.5253313183784485, "answer_score": null, "sibling_qid": "CHE-2026-05-0543-Q003", "sibling_text": "orb in details", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "The Oil Record Book Part I — purpose, the letter codes, and how entries are made", "cross_family": false }, { "answer_id": "OWS-ORB-006", "score": 0.4861447811126709, "sibling_score": 0.4861447811126709, "answer_score": null, "sibling_qid": "MUM-2025-09-0447-Q007", "sibling_text": "orb entries", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "6. Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-004", "score": 0.3835698962211609, "sibling_score": 0.3835698962211609, "answer_score": null, "sibling_qid": "MUM-2026-08-3831-Q008", "sibling_text": "bunker entry in orb", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Weekly ORB entries — the mandatory sludge retention record, the bunker entry, and what is voluntary", "cross_family": false } ] }, { "qid": "KOC-2023-03-0175-Q006", "text": "Steam flow meter working? How it measure flow?", "family": "Instrumentation & Measurement", "subtopic": "Flow Meter", "tid": "KOC-2023-03-0175", "tray": "review", "candidates": [ { "answer_id": "ACC-603-006", "score": 0.6809427738189697, "sibling_score": 0.6809427738189697, "answer_score": 0.5906414210796356, "sibling_qid": "KOL-2022-02-1662-Q006", "sibling_text": "boiler steam flow measurement", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "How steam flow is measured for the automatic combustion control", "cross_family": true }, { "answer_id": "DP-TX-004", "score": 0.6720340251922607, "sibling_score": 0.6720340251922607, "answer_score": 0.5173267871141434, "sibling_qid": "KOC-2025-07-1551-Q002", "sibling_text": "flowmeter working", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Differential-pressure flowmeter — principle, types and square-root extraction", "cross_family": true }, { "answer_id": "TPL-SENS-B-004", "score": 0.6650031805038452, "sibling_score": 0.6650031805038452, "answer_score": null, "sibling_qid": "KOL-2025-10-2887-Q006", "sibling_text": "flow meter complete working principle how calculated", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Shipboard T/P/L instrumentation — principles & the remote-indication chain", "cross_family": true } ] }, { "qid": "KOC-2023-03-0924-Q009", "text": "And clearance", "family": "Shafting, Propeller & Rudder", "subtopic": "Stern Tube / Tail Shaft Bearings", "tid": "KOC-2023-03-0924", "tray": "review", "candidates": [ { "answer_id": "DDHSC-002", "score": 0.6712677478790283, "sibling_score": 0.6712677478790283, "answer_score": null, "sibling_qid": "MUM-2026-10-4001-Q007", "sibling_text": "clearances", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Explain the underwater hull inspection and checks carried out as Second Engineer during drydock.", "cross_family": true }, { "answer_id": "BCL-592-002", "score": 0.6572672724723816, "sibling_score": 0.6572672724723816, "answer_score": null, "sibling_qid": "MUM-2026-05-3001-Q006S2", "sibling_text": "how to take clearance", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Take me through all the clearances you measure on the main engine and how you take each one.", "cross_family": false }, { "answer_id": "BRG-NOM-004", "score": 0.6282967329025269, "sibling_score": 0.6282967329025269, "answer_score": null, "sibling_qid": "KOC-2025-10-1946-Q011", "sibling_text": "what happens if clearance increases", "sibling_family": "2-Stroke - 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Two paralleled generators sharing unequal load — cause and correction", "cross_family": false }, { "answer_id": "DIODESO-001", "score": 0.6546506881713867, "sibling_score": 0.6546506881713867, "answer_score": null, "sibling_qid": "MUM-2025-09-1640-Q001", "sibling_text": "two gen running and suddenly one diode open ckt short ckt", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Two alternators in parallel — one rotating rectifier diode goes short circuit. 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Container Ships", "via": "sibling", "answer_title": "What are the latest requirements, amendments and advancements for fire safety on container ships?", "cross_family": true }, { "answer_id": "SOLAS12-BC-A-002", "score": 0.664002537727356, "sibling_score": 0.664002537727356, "answer_score": 0.4516239047050476, "sibling_qid": "KOC-2025-12-0749-Q002", "sibling_text": "latest amendments in bulk carrier", "sibling_family": "", "via": "sibling", "answer_title": "Why Chapter XII was introduced; old vs new bulk carriers and latest amendments", "cross_family": false }, { "answer_id": "SHIPTYPE-BTC-001", "score": 0.617016613483429, "sibling_score": 0.617016613483429, "answer_score": null, "sibling_qid": "KOC-2025-11-0721-Q013", "sibling_text": "container ship special constructional features", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Container ship construction — cross-section, framing and special structural features", "cross_family": false } ] }, { "qid": "KOC-2023-05-0980-Q002", "text": "How ae lube oil trip carried out,alarm and trip pressure", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE Hot / Blow Past", "tid": "KOC-2023-05-0980", "tray": "new", "candidates": [ { "answer_id": "REEF-COMP-002", "score": 0.6277786493301392, "sibling_score": 0.6277786493301392, "answer_score": 0.5139660954475402, "sibling_qid": "KOC-2024-07-1370-Q008", "sibling_text": "lube oil low pressure trip", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Lube-oil low-pressure / differential-pressure trip — how it works, tests and sets", "cross_family": true }, { "answer_id": "LO-PR-ALM-001", "score": 0.6205945014953613, "sibling_score": 0.6205945014953613, "answer_score": 0.5003595829010009, "sibling_qid": "MUM-2026-01-1244-Q006", "sibling_text": "action as 2ae if low lube oil pressure alarm comes", "sibling_family": "Fault Diagnosis & 2/E Actions", "via": "sibling", "answer_title": "Main engine low lubricating-oil pressure — alarm, slowdown or trip: your actions as 2/E, and is the alarm true or false?", "cross_family": true }, { "answer_id": "TPL-SENS-A-002", "score": 0.6092315912246704, "sibling_score": 0.6092315912246704, "answer_score": null, "sibling_qid": "CHE-2025-10-0304-Q009", "sibling_text": "how you will try out generator lube oil low pressure alarm and trips with the pressure calibrator", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Pressure transmitter / transducer / switch working and calibration", "cross_family": true } ] }, { "qid": "KOC-2023-05-0980-Q008", "text": "Draw engine bed plate showing transverse girder ,tie rods etc", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Bedplate / A-Frame", "tid": "KOC-2023-05-0980", "tray": "review", "candidates": [ { "answer_id": "TR-TB-PA-001", "score": 0.6849208474159241, "sibling_score": 0.6849208474159241, "answer_score": null, "sibling_qid": "KOL-2024-04-3686-Q003", "sibling_text": "how firing forces transmitted tie rods arrangement how fitted how crankshaft rests on bedplate how bed plate girders fitted", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Function of tie rods and the firing-load path", "cross_family": false }, { "answer_id": "XHEAD-303-002", "score": 0.6025761961936951, "sibling_score": 0.6025761961936951, "answer_score": 0.5085560977458954, "sibling_qid": "KOC-2024-08-1004-Q006", "sibling_text": "cross head diagram from top show a frame and tie rod", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead arrangement and construction (top view): A-frame, guides, tie rods", "cross_family": true }, { "answer_id": "KGF-A-001", "score": 0.5993847250938416, "sibling_score": 0.5993847250938416, "answer_score": null, "sibling_qid": "KOC-2024-08-0391-Q001", "sibling_text": "draw transverse c s of engine room showing db tank", "sibling_family": "", "via": "sibling", "answer_title": "Construction terminology & structural member identification", "cross_family": false } ] }, { "qid": "KOC-2023-05-0981-Q006", "text": "What is osmosis and reverse osmosis and working", "family": "NDT & Material Testing", "subtopic": "Osmosis", "tid": "KOC-2023-05-0981", "tray": "new", "candidates": [ { "answer_id": "FWG-RO-006", "score": 0.5812248587608337, "sibling_score": 0.5812248587608337, "answer_score": 0.5113265544176101, "sibling_qid": "KOC-2026-08-2117-Q001", "sibling_text": "reverse osmosis", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Explain reverse osmosis — the principle and flow, pre- and post-treatment, and what chemical is dosed before the RO.", "cross_family": false }, { "answer_id": "RVSG-213-001", "score": 0.5547423958778381, "sibling_score": 0.5547423958778381, "answer_score": null, "sibling_qid": "KOL-2022-10-1713-Q005", "sibling_text": "rotary vane system and vane material rao difference bw osmosis n reverse osmosis", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Construction, main parts, materials & vane fitment", "cross_family": true }, { "answer_id": "OWS-15PPM-004", "score": 0.3953273296356201, "sibling_score": 0.3953273296356201, "answer_score": null, "sibling_qid": "CHE-2025-11-0452-Q001", "sibling_text": "what is working principle of ows what happens in first chamber don t say first chamber is gravity separation", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": true } ] }, { "qid": "KOC-2023-05-1256-Q001", "text": "Draw 3 point starter how novolt coil de energises", "family": "Electrical - Motors & Starters", "subtopic": "DC Motor Three-Point Starter", "tid": "KOC-2023-05-1256", "tray": "review", "candidates": [ { "answer_id": "SDST-A-001", "score": 0.7685862183570862, "sibling_score": 0.7685862183570862, "answer_score": 0.5257198274135589, "sibling_qid": "KOC-2026-05-0051-Q001", "sibling_text": "3 point starter draw explain working use of no voltage coil", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false }, { "answer_id": "AUTOTX-STR-001", "score": 0.688714325428009, "sibling_score": 0.688714325428009, "answer_score": null, "sibling_qid": "KOC-2025-03-1518-Q001", "sibling_text": "draw auto transformer starter circuit", "sibling_family": "Electrical - 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Draw, construct and explain the auto-transformer starter", "cross_family": false }, { "answer_id": "TG-MOTOR-005", "score": 0.5230532318353652, "sibling_score": null, "answer_score": 0.5230532318353652, "sibling_qid": "", "sibling_text": "draw the turning gear circuit diagram and explain the starter power side supply isolator and fuses mcb fwd and rev contactors rev has two phases crossed overload relay motor control side stop plus fwd rev push buttons feeding the two coils", "sibling_family": "", "via": "answer_title", "answer_title": "Draw the turning gear circuit diagram and explain the starter.", "cross_family": false } ] }, { "qid": "KOC-2023-05-1257-Q003", "text": "how to order a motor", "family": "Electrical - Motors & Starters", "subtopic": "Motor Specification / Ordering", "tid": "KOC-2023-05-1257", "tray": "review", "candidates": [ { "answer_id": "BRG-NOM-001", "score": 0.8156446814537048, "sibling_score": 0.8156446814537048, "answer_score": null, "sibling_qid": "NOI-2026-09-0015-Q005", "sibling_text": "how to order motor", "sibling_family": "Electrical - 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Motors & Starters", "subtopic": "DC Motor Three-Point Starter", "tid": "KOC-2023-05-1259", "tray": "new", "candidates": [ { "answer_id": "STR-DEC-A-001", "score": 0.5174228549003601, "sibling_score": 0.5174228549003601, "answer_score": 0.4159959524869919, "sibling_qid": "KOC-2023-07-1271-Q005", "sibling_text": "types of starters for ac motor how s starting current controlled in dol", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "SDST-A-001", "score": 0.5146466493606567, "sibling_score": 0.5146466493606567, "answer_score": null, "sibling_qid": "KOC-2026-05-0051-Q001", "sibling_text": "3 point starter draw explain working use of no voltage coil", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false }, { "answer_id": "REV-MOT-BF67-003", "score": 0.5010327696800232, "sibling_score": 0.5010327696800232, "answer_score": null, "sibling_qid": "KOC-2021-07-1139-Q008", "sibling_text": "he showed a circuit diagram and asked to identify the starter used it was a exh vent fan circuit having dol starter he showed me the contacts for reversing direction and asked why it is used", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw the reversing circuit, and where is motor reversing applied on board?", "cross_family": false } ] }, { "qid": "KOC-2023-05-1263-Q001", "text": "How to order a motor", "family": "Electrical - Motors & Starters", "subtopic": "Motor Specification / Ordering", "tid": "KOC-2023-05-1263", "tray": "review", "candidates": [ { "answer_id": "BRG-NOM-001", "score": 0.8156446814537048, "sibling_score": 0.8156446814537048, "answer_score": null, "sibling_qid": "NOI-2026-09-0015-Q005", "sibling_text": "how to order motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Bearing Numbers, Suffixes and What to State When Ordering", "cross_family": false }, { "answer_id": "IP-ENCL-002", "score": 0.6683418154716492, "sibling_score": 0.6683418154716492, "answer_score": null, "sibling_qid": "KOC-2026-10-2222-Q002", "sibling_text": "how to order sea water motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Suitable IP rating by location — ER, deck, pump, generator", "cross_family": false }, { "answer_id": "SGM-ELEC-002", "score": 0.639877438545227, "sibling_score": 0.639877438545227, "answer_score": 0.4956745356321335, "sibling_qid": "MUM-2025-08-1605-Q001", "sibling_text": "steering motor type and difference from other er motors how to order motor over speed test over current test", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What type of motor is the steering gear motor, how does it differ from other engine-room motors, and how do you order one?", "cross_family": false } ] }, { "qid": "KOC-2023-06-1816-Q002", "text": "Boiler safety valve setting after survey..draw", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2023-06-1816", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P01-001", "score": 0.8317171335220337, "sibling_score": 0.8317171335220337, "answer_score": null, "sibling_qid": "MUM-2026-03-2935-Q013", "sibling_text": "boiler safety valve setting in presence of surveyor after survey", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.7488755583763123, "sibling_score": 0.7488755583763123, "answer_score": null, "sibling_qid": "KOC-2026-05-0003-Q005", "sibling_text": "boiler safety valve setting procedure", "sibling_family": "Boilers - 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Two paralleled generators sharing unequal load — cause and correction", "cross_family": false } ] }, { "qid": "KOC-2023-07-1267-Q004", "text": "Tanker pumproom electrical equipment specification? Class rule? At what height?", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOC-2023-07-1267", "tray": "new", "candidates": [ { "answer_id": "ELEC-SURV-005", "score": 0.5985932350158691, "sibling_score": 0.5985932350158691, "answer_score": null, "sibling_qid": "KOL-2018-09-2223-Q004", "sibling_text": "class requirements for all electrical equipments on board a tanker all details", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Regulatory basis & equipment standards", "cross_family": false }, { "answer_id": "EXD-EXI-A-002", "score": 0.5693003535270691, "sibling_score": 0.5693003535270691, "answer_score": null, "sibling_qid": "KOL-2022-01-2529-Q004", "sibling_text": "flame proof equipment denotion special protection of circuit in pump room", "sibling_family": "", "via": "sibling", "answer_title": "Ex d (flameproof / explosion-proof) — construction, shipboard applications and maintenance", "cross_family": false }, { "answer_id": "PR-SAFE-A-004", "score": 0.5520446300506592, "sibling_score": 0.5520446300506592, "answer_score": 0.4987759798765182, "sibling_qid": "CHE-2026-08-3899-Q003", "sibling_text": "pump room electrical point of safeties", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Pump-room electrical safety, lighting and portable equipment", "cross_family": false } ] }, { "qid": "KOC-2023-07-1267-Q007", "text": "Dc generator parallel? How to check polarity while generator running during parallell?", "family": "Electrical - Generator & Alternator", "subtopic": "Synchronization", "tid": "KOC-2023-07-1267", "tray": "review", "candidates": [ { "answer_id": "SYNC-C-001", "score": 0.6579424738883972, "sibling_score": 0.6579424738883972, "answer_score": 0.4958972543478012, "sibling_qid": "KOC-2026-02-1694-Q003", "sibling_text": "dc generator paralleling", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Paralleling generators — procedure, conditions and practical checks", "cross_family": false }, { "answer_id": "SYNC-D-001", "score": 0.6523382067680359, "sibling_score": 0.6523382067680359, "answer_score": null, "sibling_qid": "KOC-2025-08-1565-Q005", "sibling_text": "generator parallel when not in phase", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Closing the breaker out of phase — wrong-synchronizing consequences", "cross_family": false }, { "answer_id": "GEN-LSI-B-002", "score": 0.6402150988578796, "sibling_score": 0.6402150988578796, "answer_score": null, "sibling_qid": "KOC-2024-07-0369-Q009", "sibling_text": "one of the two parallel running generator have higher current compare to other why and how to rectify", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "02. Load, current or kW sharing fluctuating in parallel operation — actions", "cross_family": false } ] }, { "qid": "KOC-2023-07-1268-Q004", "text": "Explain LO pressure cut out? How LO cut out in reefer?", "family": "Refrigeration & AC", "subtopic": "Refrigeration Lubricating Oil / Flock Point / Oil Charging", "tid": "KOC-2023-07-1268", "tray": "new", "candidates": [ { "answer_id": "RAC-HPLP-389-003", "score": 0.6450055241584778, "sibling_score": 0.6450055241584778, "answer_score": 0.5025118887424469, "sibling_qid": "KOC-2025-03-2061-Q010", "sibling_text": "cutouts in refrigeration system hp lp lo", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Trips and cutouts on a refrigeration compressor (HP, LP, LO)", "cross_family": false }, { "answer_id": "REEF-COMP-001", "score": 0.5926691293716431, "sibling_score": 0.5926691293716431, "answer_score": 0.4844934582710266, "sibling_qid": "KOC-2024-07-0369-Q013", "sibling_text": "low pressure cut out in reefer system internal paul sir type of ship container", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Reefer/AC compressor safeties and cut-outs — safety valve, HP and LP cut-outs", "cross_family": false }, { "answer_id": "REEF-COMP-002", "score": 0.5910754203796387, "sibling_score": 0.5910754203796387, "answer_score": null, "sibling_qid": "KOC-2026-02-0822-Q015", "sibling_text": "reefer compressor low lo pressure switch working", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Lube-oil low-pressure / differential-pressure trip — how it works, tests and sets", "cross_family": false } ] }, { "qid": "KOC-2023-07-1269-Q004", "text": "If arc produce on circuit breaker how it controlled in HV", "family": "", "subtopic": "Circuit Breakers (ACB / VCB / SF6)", "tid": "KOC-2023-07-1269", "tray": "review", "candidates": [ { "answer_id": "CBR-ARC-G-001", "score": 0.695557713508606, "sibling_score": 0.695557713508606, "answer_score": null, "sibling_qid": "KOC-2024-05-1359-Q009", "sibling_text": "arc is produced in hv system during operation of circuit breaker how its contained ans we use vaccum circuit breaker", "sibling_family": "", "via": "sibling", "answer_title": "Arc formation, arc quenching and arc-blast hazard", "cross_family": false }, { "answer_id": "CB-ACBVCBSF6-E-001", "score": 0.6040937900543213, "sibling_score": 0.6040937900543213, "answer_score": null, "sibling_qid": "MUM-2026-02-1936-Q006", "sibling_text": "type of circuit breaker used for hv i told vcb", "sibling_family": "", "via": "sibling", "answer_title": "What are the common types of circuit breakers used onboard and where are ACB, MCB, MCCB, VCB and SF6 breakers applied?", "cross_family": false }, { "answer_id": "CBKR-H-001", "score": 0.599719762802124, "sibling_score": 0.599719762802124, "answer_score": 0.532375094294548, "sibling_qid": "KOL-2022-03-2543-Q001", "sibling_text": "circuit breaker in hv system", "sibling_family": "", "via": "sibling", "answer_title": "How do VCB and SF6 breakers work in a high-voltage system, and why are they used instead of an ACB?", "cross_family": false } ] }, { "qid": "KOC-2023-07-1271-Q003", "text": "DC generator paralleling, how to adjust voltage, interpole ?", "family": "Electrical - Generator & Alternator", "subtopic": "Synchronization", "tid": "KOC-2023-07-1271", "tray": "new", "candidates": [ { "answer_id": "SYNC-C-001", "score": 0.6467104554176331, "sibling_score": 0.6467104554176331, "answer_score": null, "sibling_qid": "KOC-2026-02-1694-Q003", "sibling_text": "dc generator paralleling", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Paralleling generators — procedure, conditions and practical checks", "cross_family": false }, { "answer_id": "SYNC-D-003", "score": 0.6438339352607727, "sibling_score": 0.6438339352607727, "answer_score": null, "sibling_qid": "CHE-2025-07-0265-Q012", "sibling_text": "while llel 2 gen incoming generator voltage is low i said voltage trimmer is provided in the msb or generator can adjust or 5v he need percentage i don t surveyor said 2 5 of rated voltage", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Correct paralleling — checks, the synchroscope & phase angle, voltage trim, interlocks", "cross_family": false }, { "answer_id": "AVR-EXC-H-002", "score": 0.6408165097236633, "sibling_score": 0.6408165097236633, "answer_score": 0.4738250494003296, "sibling_qid": "KOC-2024-06-1364-Q007", "sibling_text": "how to adjust voltage of generator", "sibling_family": "Electrical - 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"2stroke cylinder liner removal", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "KOC-2023-07-1817", "tray": "review", "candidates": [ { "answer_id": "CYL-LINER-P03-008", "score": 0.7131310105323792, "sibling_score": 0.7131310105323792, "answer_score": 0.5367053925991058, "sibling_qid": "KOL-2021-07-3431-Q002", "sibling_text": "me liner removal procedure after cyl head piston removal", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Main-engine cylinder liner removal — full procedure, the lifting tool, and precautions", "cross_family": false }, { "answer_id": "CYL-LINER-P02-002", "score": 0.6680278182029724, "sibling_score": 0.6680278182029724, "answer_score": null, "sibling_qid": "MUM-2026-05-3238-Q009", "sibling_text": "liner seized how to remove", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L2 · T044-PART_02-G002High", "cross_family": false }, { "answer_id": 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Lubrication & Bearings", "via": "sibling", "answer_title": "Bearing Inspection and Defect Terms — Scuffing and Runout", "cross_family": true } ] }, { "qid": "KOC-2023-08-1274-Q003", "text": "All explosion protection?", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOC-2023-08-1274", "tray": "review", "candidates": [ { "answer_id": "SAE-388-001", "score": 0.6881055235862732, "sibling_score": 0.6881055235862732, "answer_score": null, "sibling_qid": "CHE-2026-02-0483-Q010", "sibling_text": "starting air explosion protection", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "What safeties are fitted on the main engine starting air line?", "cross_family": false }, { "answer_id": "EXD-EXI-A-002", "score": 0.6720011234283447, "sibling_score": 0.6720011234283447, "answer_score": 0.48976585268974304, "sibling_qid": "KOC-2023-01-1226-Q009", "sibling_text": "explosion proof definition and zone", "sibling_family": "", "via": "sibling", "answer_title": "Ex d (flameproof / explosion-proof) — construction, shipboard applications and maintenance", "cross_family": false }, { "answer_id": "EXD-EXI-A-001", "score": 0.647981584072113, "sibling_score": 0.647981584072113, "answer_score": 0.482262521982193, "sibling_qid": "KOC-2025-10-1580-Q005", "sibling_text": "flameproof explosion proof", "sibling_family": "", "via": "sibling", "answer_title": "Ex i (intrinsically safe) vs Ex d (flameproof / explosion-proof) — the difference", "cross_family": false } ] }, { "qid": "KOC-2023-08-1274-Q004", "text": "Zener barrier? Why 2 zener diodes are provided?", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOC-2023-08-1274", "tray": "new", "candidates": [ { "answer_id": "EPC-P02-03", "score": 0.5081968903541565, "sibling_score": 0.5081968903541565, "answer_score": 0.4034497857093811, "sibling_qid": "MUM-2025-09-1653-Q008", "sibling_text": "why is zener diode given", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Where is a zener diode used on board and why — voltage regulator, AVR, clipper — and explain one application in detail.", "cross_family": false }, { "answer_id": "EPC-P02-02", "score": 0.5039372444152832, "sibling_score": 0.5039372444152832, "answer_score": 0.3915303573012352, "sibling_qid": "KOL-2017-10-2153-Q003", "sibling_text": "zener and normal diode", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "How is a zener diode different from a normal (PN / crystal) diode — construction, behaviour, output, and use?", "cross_family": false }, { "answer_id": "EPC-P02-01", "score": 0.4851874113082886, "sibling_score": 0.4851874113082886, "answer_score": 0.3918887287378311, "sibling_qid": "MUM-2026-06-3633-Q006", "sibling_text": "how it works what is zener barrier applications of zener diode", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a zener diode? Draw its symbol, explain its working principle, and draw and explain its characteristic curve including the zener (breakdown) voltage.", "cross_family": false } ] }, { "qid": "KOC-2023-08-1276-Q004", "text": "Navig■tional equipments of bridge", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "KOC-2023-08-1276", "tray": "new", "candidates": [ { "answer_id": "LSA-CODE-BF044-002", "score": 0.6030241250991821, "sibling_score": 0.6030241250991821, "answer_score": null, "sibling_qid": "KOL-2022-03-0612-Q005", "sibling_text": "safety equipment on bridge according to lsa", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What life-saving equipment does the LSA Code / SOLAS Chapter III require on or near the bridge?", "cross_family": true }, { "answer_id": "BCME-001", "score": 0.5938538312911987, "sibling_score": 0.5938538312911987, "answer_score": null, "sibling_qid": "MUM-2025-12-1222-Q003", "sibling_text": "manoeuvring diagram details bridge to ecr", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Operating the main engine from the bridge — command, control transfer and telegraph response", "cross_family": true }, { "answer_id": "LT-SRC-004", "score": 0.5728741884231567, "sibling_score": 0.5728741884231567, "answer_score": null, "sibling_qid": "MUM-2026-09-3954-Q004", "sibling_text": "navigation lights", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "What navigation lights are carried, where, and how many?", "cross_family": false } ] }, { "qid": "KOC-2023-08-1276-Q006", "text": "Starter panel components, control Circuit purpose,  Why the fuse did not rupture due the high starting current of motor ?", "family": "Electrical - Motors & Starters", "subtopic": "Starter Panel / Control Circuit", "tid": "KOC-2023-08-1276", "tray": "review", "candidates": [ { "answer_id": "FUSE-HRC-001", "score": 0.6600396037101746, "sibling_score": 0.6600396037101746, "answer_score": null, "sibling_qid": "KOC-2022-08-1188-Q005", "sibling_text": "safeties of a motor why fuse not tripping a motor during starting", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "What a fuse is, where and why it is fitted", "cross_family": true }, { "answer_id": "IMSP-007", "score": 0.6560060381889343, "sibling_score": 0.6560060381889343, "answer_score": null, "sibling_qid": "KOC-2021-07-1141-Q002", "sibling_text": "motor starter protection protection for control system", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What safeties and protections are provided in an induction motor and its starter — overload, short-circuit, thermal? What about a motor on deck, and large three-phase motors?", "cross_family": false }, { "answer_id": "STARTER-DEC-B-002", "score": 0.6493999361991882, "sibling_score": 0.6493999361991882, "answer_score": 0.5662989139556884, "sibling_qid": "CHE-2025-07-0266-Q004", "sibling_text": "why starter for motor i said about the inrush he said how u will avoid in dol and why is the starter required for the motor he was expecting the safety of the motor in dol inbuilt internal ubaid sir", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Why a starter is needed & reducing starting current", "cross_family": false } ] }, { "qid": "KOC-2023-08-1280-Q004", "text": "Motor Specs., Service Factor, Frame No", "family": "Electrical - Motors & Starters", "subtopic": "Motor Specification / Ordering", "tid": "KOC-2023-08-1280", "tray": "review", "candidates": [ { "answer_id": "ELECTRICAL-M-A-01", "score": 0.7135280966758728, "sibling_score": 0.7135280966758728, "answer_score": 0.5358416736125946, "sibling_qid": "NOI-2026-09-0005-Q009", "sibling_text": "frame number of motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Motor Frame Number", "cross_family": false }, { "answer_id": "BRG-NOM-001", "score": 0.6328346133232117, "sibling_score": 0.6328346133232117, "answer_score": null, "sibling_qid": "MUM-2026-09-3980-Q011", "sibling_text": "specification of motor to order", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Bearing Numbers, Suffixes and What to State When Ordering", "cross_family": false }, { "answer_id": "BOW-THR-003", "score": 0.6125069260597229, "sibling_score": 0.6125069260597229, "answer_score": null, "sibling_qid": "CHE-2026-02-0341-Q008", "sibling_text": "rating of the motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Bow-thruster motor — type, supply voltage, starter, connection and VFD control", "cross_family": false } ] }, { "qid": "KOC-2023-08-1818-Q001", "text": "What is Nodular cast iron & properties", "family": "NDT & Material Testing", "subtopic": "Material Properties", "tid": "KOC-2023-08-1818", "tray": "review", "candidates": [ { "answer_id": "MATPROP-A-003", "score": 0.7017846703529358, "sibling_score": 0.7017846703529358, "answer_score": 0.5426296293735504, "sibling_qid": "KOL-2021-07-1906-Q001", "sibling_text": "nodular cast iron uses composition", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Cast iron: grey, white, nodular; versus cast steel", "cross_family": false }, { "answer_id": "HT-A-001", "score": 0.597974956035614, "sibling_score": 0.597974956035614, "answer_score": null, "sibling_qid": "CHE-2026-05-0569-Q003", "sibling_text": "why cast iron and heat treatment process", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Heat treatment: what it is, the main methods, and why it is done", "cross_family": false }, { "answer_id": "STEEL-GR-002", "score": 0.587089478969574, "sibling_score": 0.587089478969574, "answer_score": 0.39200393855571747, "sibling_qid": "KOC-2026-05-2130-Q008", "sibling_text": "difference in properties of cast iron and mild steel", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Mild steel — composition, use, and how it differs from cast iron", "cross_family": false } ] }, { "qid": "KOC-2023-08-1818-Q003", "text": "Draw and explain wilden pump. How many diaphragms r there ?", "family": "Pumps - Centrifugal & PD", "subtopic": "Positive Displacement Pump", "tid": "KOC-2023-08-1818", "tray": "new", "candidates": [ { "answer_id": "PCD-P04-05", "score": 0.5910709500312805, "sibling_score": 0.5910709500312805, "answer_score": 0.43446387350559235, "sibling_qid": "KOC-2025-11-1968-Q006", "sibling_text": "double acting reciprocating bilge pump diagram", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "05. Reciprocating pump — construction, working and how you know it is discharging", "cross_family": false }, { "answer_id": "HSAP-583-A-001", "score": 0.5838007926940918, "sibling_score": 0.5838007926940918, "answer_score": 0.42250013947486875, "sibling_qid": "KOC-2022-02-0956-Q010", "sibling_text": "heleshew pump diagram working", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Hele-Shaw pump: construction and working — draw and explain", "cross_family": false }, { "answer_id": "PCP-BF01-001", "score": 0.5785996317863464, "sibling_score": 0.5785996317863464, "answer_score": null, "sibling_qid": "KOC-2024-04-1837-Q003", "sibling_text": "mono screw pump diagram", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "What is a progressive cavity pump — construction and working", "cross_family": false } ] }, { "qid": "KOC-2023-08-1818-Q004", "text": "Draw 4-S piston cross section", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE Conrod / Piston", "tid": "KOC-2023-08-1818", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-003", "score": 0.6807047128677368, "sibling_score": 0.6807047128677368, "answer_score": null, "sibling_qid": "KOC-2024-09-1008-Q002", "sibling_text": "4 stroke piston cross section", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE piston, ring and groove checks; piston material", "cross_family": false }, { "answer_id": "PST-CSI-BF-001", "score": 0.6729802489280701, "sibling_score": 0.6729802489280701, "answer_score": 0.43009811043739316, "sibling_qid": "KOC-2026-03-0935-Q003", "sibling_text": "draw 2s piston cross section diagram", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Cross-section of a two-stroke piston — parts, bolting, sealing, materials", "cross_family": true }, { "answer_id": "AE-CRP-006", "score": 0.6087045073509216, "sibling_score": 0.6087045073509216, "answer_score": null, "sibling_qid": "KOC-2025-03-1908-Q007", "sibling_text": "4s conrod cross section dia", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE connecting-rod design — section, serrations, oblique cut, whip loading", "cross_family": false } ] }, { "qid": "KOC-2023-08-1818-Q005", "text": "Overhauling of butterfly valve and parts", "family": "Auxiliary Equipment", "subtopic": "VALVES", "tid": "KOC-2023-08-1818", "tray": "review", "candidates": [ { "answer_id": "GV-330-002", "score": 0.7915743589401245, "sibling_score": 0.7915743589401245, "answer_score": 0.4686744511127472, "sibling_qid": "KOC-2026-02-2005-Q006", "sibling_text": "butterfly valve overhaul", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Gate valve overhaul, checks & the stuck / not-operating valve", "cross_family": false }, { "answer_id": "EXHV-297-004", "score": 0.5928415656089783, "sibling_score": 0.5928415656089783, "answer_score": null, "sibling_qid": "MUM-2025-08-2388-Q004", "sibling_text": "exh valve overhaul", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Checks, tests & overhaul points — before and after fitting", "cross_family": true }, { "answer_id": "EXV-P02-001", "score": 0.5916985869407654, "sibling_score": 0.5916985869407654, "answer_score": null, "sibling_qid": "KOC-2026-02-0807-Q010", "sibling_text": "exh valve overhauling procedure", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve overhaul & dismantling — procedure and precautions", "cross_family": true } ] }, { "qid": "KOC-2023-08-1818-Q010", "text": "safety valve setting of exhaust gas boiler", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2023-08-1818", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-001", "score": 0.7736594676971436, "sibling_score": 0.7736594676971436, "answer_score": null, "sibling_qid": "MUM-2026-05-3332-Q004", "sibling_text": "setting of boiler safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.7508918642997742, "sibling_score": 0.7508918642997742, "answer_score": null, "sibling_qid": "MUM-2026-03-2935-Q013", "sibling_text": "boiler safety valve setting in presence of surveyor after survey", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "ECON-EGB-004", "score": 0.7280153632164001, "sibling_score": 0.7280153632164001, "answer_score": 0.5623660743236542, "sibling_qid": "KOL-2026-09-4304-Q003", "sibling_text": "safety valve setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Safety-valve setting after overhaul & why set higher than the boiler", "cross_family": false } ] }, { "qid": "KOC-2023-08-1819-Q006", "text": "Safety valve setting(he asked where the compression ring is threaded. I told Compression screw is threaded to neck bush)", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2023-08-1819", "tray": "review", "candidates": [ { "answer_id": "ECON-EGB-004", "score": 0.6592339873313904, "sibling_score": 0.6592339873313904, "answer_score": 0.4649720311164856, "sibling_qid": "KOC-2026-03-2019-Q005", "sibling_text": "safety valve setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Safety-valve setting after overhaul & why set higher than the boiler", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.654159426689148, "sibling_score": 0.654159426689148, "answer_score": null, "sibling_qid": "MUM-2026-05-2994-Q003", "sibling_text": "how do you set the safety valve in front of surveyor", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "MR-DS-PV-B-006", "score": 0.6490940451622009, "sibling_score": 0.6490940451622009, "answer_score": null, "sibling_qid": "KOC-2026-09-2180-Q009", "sibling_text": "full bore safety valve construction", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "6. Deck isolating valve, deck relief/safety devices, and cargo-tank pressure", "cross_family": false } ] }, { "qid": "KOC-2023-09-0218-Q008", "text": "Lrit", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "KOC-2023-09-0218", "tray": "new", "candidates": [ { "answer_id": "EPIRB-SART-001", "score": 0.47189661860466003, "sibling_score": 0.47189661860466003, "answer_score": null, "sibling_qid": "KOL-2017-09-0112-Q004", "sibling_text": "lrit vdr epirb sart mob marker", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What is the difference between EPIRB and SART? Give the function, construction, use and operation of each.", "cross_family": true }, { "answer_id": "TONN-007", "score": 0.43905043601989746, "sibling_score": 0.43905043601989746, "answer_score": null, "sibling_qid": "MUM-2026-06-3480-Q005", "sibling_text": "grt nrt", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Differentiate GT, NT, GRT/NRT, DWT, Lightweight and Displacement", "cross_family": true }, { "answer_id": "LCF-LCB-002", "score": 0.41571885347366333, "sibling_score": 0.41571885347366333, "answer_score": null, "sibling_qid": "MUM-2023-06-0109-Q007", "sibling_text": "lcf trim relationship", "sibling_family": "", "via": "sibling", "answer_title": "How does LCF relate to trim, and why does trim change about LCF rather than LCB?", "cross_family": false } ] }, { "qid": "KOC-2023-09-0220-Q002", "text": "what is Primary distress signal", "family": "SOLAS - LSA & Lifeboats", "subtopic": "EPIRB / SART", "tid": "KOC-2023-09-0220", "tray": "new", "candidates": [ { "answer_id": "EPIRB-003", "score": 0.5397480130195618, "sibling_score": 0.5397480130195618, "answer_score": 0.37730414867401124, "sibling_qid": "CHE-2026-05-0608-Q006", "sibling_text": "epirb frequency how and where it is stored how to activate and how it will distress signal", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What signal does the EPIRB send — frequency, how and where it is routed, who receives it, and how it is stored and activated?", "cross_family": false }, { "answer_id": "UNL-330-001", "score": 0.4965508282184601, "sibling_score": 0.4965508282184601, "answer_score": null, "sibling_qid": "MUM-2026-05-3193-Q007", "sibling_text": "gmdss", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What is the function of the main air compressor unloader?", "cross_family": false }, { "answer_id": "RB-FRB-004", "score": 0.4714733362197876, "sibling_score": 0.4714733362197876, "answer_score": null, "sibling_qid": "KOC-2023-08-0209-Q021", "sibling_text": "does rescue boat have connection from emergency generator", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Rescue-boat technical checks — speed, emergency-power supply, and engine differences", "cross_family": false } ] }, { "qid": "KOC-2023-09-0220-Q004", "text": "Orb code c- c12 & 13", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "KOC-2023-09-0220", "tray": "new", "candidates": [ { "answer_id": "OWS-ORB-006", "score": 0.5364037752151489, "sibling_score": 0.5364037752151489, "answer_score": null, "sibling_qid": "CHE-2026-05-0634-Q009", "sibling_text": "orb all codes", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "6. Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-002", "score": 0.4318332374095917, "sibling_score": 0.4318332374095917, "answer_score": null, "sibling_qid": "CHE-2026-05-0543-Q003", "sibling_text": "orb in details", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "The Oil Record Book Part I — purpose, the letter codes, and how entries are made", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-004", "score": 0.4285396337509155, "sibling_score": 0.4285396337509155, "answer_score": null, "sibling_qid": "KOC-2026-04-0906-Q013", "sibling_text": "orb weekly entry code and number", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Weekly ORB entries — the mandatory sludge retention record, the bunker entry, and what is voluntary", "cross_family": false } ] }, { "qid": "KOC-2023-09-1282-Q006", "text": "Service factor", "family": "Electrical - Motors & Starters", "subtopic": "Motor Specification / Ordering", "tid": "KOC-2023-09-1282", "tray": "new", "candidates": [ { "answer_id": "IMSP-007", "score": 0.5271322727203369, "sibling_score": 0.5271322727203369, "answer_score": null, "sibling_qid": "MUM-2026-03-1997-Q006", "sibling_text": "safety factor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What safeties and protections are provided in an induction motor and its starter — overload, short-circuit, thermal? What about a motor on deck, and large three-phase motors?", "cross_family": false }, { "answer_id": "MSB-ESB-B-001", "score": 0.49432143568992615, "sibling_score": 0.49432143568992615, "answer_score": null, "sibling_qid": "KOC-2023-11-1302-Q003", "sibling_text": "msb service", "sibling_family": "", "via": "sibling", "answer_title": "Routine maintenance & health check of the MSB", "cross_family": false }, { "answer_id": "FLP-142-P02-004", "score": 0.48930203914642334, "sibling_score": 0.48930203914642334, "answer_score": null, "sibling_qid": "KOL-2024-02-0817-Q004", "sibling_text": "factor of subdivision gope", "sibling_family": "", "via": "sibling", "answer_title": "Factor of subdivision — what it is", "cross_family": false } ] }, { "qid": "KOC-2023-09-1283-Q003", "text": "Types of AVR. Explain Functional and Error operated. Explain droop. Draw and explain Static AVR. AVR trimmer function and location of trimmer", "family": "Electrical - Generator & Alternator", "subtopic": "Voltage Dip / Droop", "tid": "KOC-2023-09-1283", "tray": "review", "candidates": [ { "answer_id": "AVR-EXC-D-001", "score": 0.7724745869636536, "sibling_score": 0.7724745869636536, "answer_score": null, "sibling_qid": "KOC-2022-09-1195-Q002", "sibling_text": "types of avr static avr explain purpose of voltage trimmer", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Static AVR / static excitation — types of AVR, and how the static system works", "cross_family": false }, { "answer_id": "AVR-EXC-E-001", "score": 0.7628775238990784, "sibling_score": 0.7628775238990784, "answer_score": null, "sibling_qid": "KOC-2025-07-1560-Q003", "sibling_text": "type of avr explain static avr why voltage trimmer location", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "How does a static AVR / static excitation system work? (draw & explain)", "cross_family": false }, { "answer_id": "AVR-EXC-H-001", "score": 0.6985953450202942, "sibling_score": 0.6985953450202942, "answer_score": null, "sibling_qid": "KOC-2024-02-1330-Q007", "sibling_text": "avr trimmer explain and location", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "AVR — location, components and fault checks", "cross_family": false } ] }, { "qid": "KOC-2023-09-2041-Q009", "text": "Dresser coupling draw & explain how it is tightened", "family": "Workshop & Welding", "subtopic": "Pipe Fabrication", "tid": "KOC-2023-09-2041", "tray": "new", "candidates": [ { "answer_id": "PIPEFAB-013", "score": 0.648228645324707, "sibling_score": 0.648228645324707, "answer_score": 0.44188588857650757, "sibling_qid": "MUM-2025-12-2512-Q003", "sibling_text": "dresser coupling", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "What is a dresser coupling?", "cross_family": false }, { "answer_id": "CHAIN-TENS-C-001", "score": 0.549379825592041, "sibling_score": 0.549379825592041, "answer_score": null, "sibling_qid": "KOC-2022-11-1798-Q005", "sibling_text": "chain tightening with drawing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main-engine chain drive — how you know it is slack, and how you check and tighten it", "cross_family": true }, { "answer_id": "INT-SHAFT-002", "score": 0.5334206819534302, "sibling_score": 0.5334206819534302, "answer_score": 0.3965157657861709, "sibling_qid": "MUM-2026-07-3799-Q005", "sibling_text": "shaft coupling bolt tightening procedure", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "2. Removing and overhauling the intermediate shaft (with hollow coupling bolts)", "cross_family": true } ] }, { "qid": "KOC-2023-09-2041-Q013", "text": "Purifier vertical shaft removal. Explain", "family": "Purifier & Centrifuges", "subtopic": "Purifier Operation / Bowl", "tid": "KOC-2023-09-2041", "tray": "review", "candidates": [ { "answer_id": "PURIF-BOWL-P02-003", "score": 0.7296807169914246, "sibling_score": 0.7296807169914246, "answer_score": null, "sibling_qid": "MUM-2026-06-3449-Q003", "sibling_text": "purifier vertical shaft significance", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Vertical shaft, bowl height, bearings & load support — checks, adjustment, overhaul, renewal", "cross_family": false }, { "answer_id": "PUR-DSL-002", "score": 0.5910950899124146, "sibling_score": 0.5910950899124146, "answer_score": null, "sibling_qid": "MUM-2026-03-2599-Q005", "sibling_text": "purifier vertical height", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Purifier overflow after desludging — causes, and checking or adjusting bowl height", "cross_family": false }, { "answer_id": "PUR-OPS-P01-002", "score": 0.5902740955352783, "sibling_score": 0.5902740955352783, "answer_score": 0.38605809360742566, "sibling_qid": "CHE-2026-03-0494-Q001", "sibling_text": "purifier overhaul vertical height what you will check", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Purifier — principle, working, and how the self-cleaning bowl closes", "cross_family": false } ] }, { "qid": "KOC-2023-09-2041-Q014", "text": "ME liner removal procedure. If crane is overload tripped. How will u lift.?", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "KOC-2023-09-2041", "tray": "new", "candidates": [ { "answer_id": "CYL-LINER-P03-002", "score": 0.6272814869880676, "sibling_score": 0.6272814869880676, "answer_score": null, "sibling_qid": "MUM-2022-07-0028-Q006", "sibling_text": "liner is cracked and some strands from crane wire are coming out your actions", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Detecting and confirming a cracked or leaking liner — and pinning the unit", "cross_family": false }, { "answer_id": "CYL-LINER-P04-002", "score": 0.6181092262268066, "sibling_score": 0.6181092262268066, "answer_score": null, "sibling_qid": "MUM-2026-03-2952-Q026", "sibling_text": "if liner is stuck as a second engineer what methods u will use to remove the liner", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Judging, measuring, removing & discarding a cylinder liner", "cross_family": false }, { "answer_id": "ERC-345-002", "score": 0.5960257053375244, "sibling_score": 0.5960257053375244, "answer_score": null, "sibling_qid": "KOL-2017-10-3098-Q006", "sibling_text": "you have load on engine room crane something went wrong nd crane stopped working how will you bring down the load", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Brake action and emergency load lowering", "cross_family": true } ] }, { "qid": "KOC-2023-10-0224-Q007", "text": "7 Construction of rudder carrier bearing?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOC-2023-10-0224", "tray": "review", "candidates": [ { "answer_id": "TRS-002", "score": 0.7238627076148987, "sibling_score": 0.7238627076148987, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "PRE-TEN-001", "score": 0.6753320097923279, "sibling_score": 0.6753320097923279, "answer_score": null, "sibling_qid": "MUM-2026-06-3504-Q007", "sibling_text": "rudder carrier bearing removal procedure", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Pre-stressing and pre-tensioning in main-engine bolting", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.6528874039649963, "sibling_score": 0.6528874039649963, "answer_score": null, "sibling_qid": "CHE-2026-02-0110-Q006", "sibling_text": "how rudder weight is carried key ans i said carrier bearing how it carrying explain", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false } ] }, { "qid": "KOC-2023-10-0225-Q013", "text": "types of radar", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "KOC-2023-10-0225", "tray": "new", "candidates": [ { "answer_id": "DUS-P3-05", "score": 0.5777114033699036, "sibling_score": 0.5777114033699036, "answer_score": 0.41700677424669264, "sibling_qid": "MUM-2026-09-3886-Q005", "sibling_text": "how ships radar working", "sibling_family": "Navigation & Bridge Equipment", "via": "sibling", "answer_title": "Radar inspection while entering drydock, and the certificate covering DB inspection", "cross_family": true }, { "answer_id": "DES-571-001", "score": 0.5621887445449829, "sibling_score": 0.5621887445449829, "answer_score": null, "sibling_qid": "KOC-2023-12-1312-Q015", "sibling_text": "type of speed log onboard and doppler effect", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "The Doppler log — measuring the ship's speed by the Doppler effect", "cross_family": false }, { "answer_id": "FSH-DET-001", "score": 0.554646372795105, "sibling_score": 0.554646372795105, "answer_score": null, "sibling_qid": "KOC-2022-09-0090-Q001", "sibling_text": "different types of detectors", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Types of fire, smoke, heat and flame detectors used onboard", "cross_family": true } ] }, { "qid": "KOC-2023-10-0226-Q002", "text": "Orb entries", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "KOC-2023-10-0226", "tray": "review", "candidates": [ { "answer_id": "OWS-ORB-006", "score": 0.8330174088478088, "sibling_score": 0.8330174088478088, "answer_score": null, "sibling_qid": "MUM-2025-09-0447-Q007", "sibling_text": "orb entries", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "6. Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-002", "score": 0.7612950801849365, "sibling_score": 0.7612950801849365, "answer_score": 0.2536647871136665, "sibling_qid": "CHE-2024-10-0509-Q002", "sibling_text": "orb entries all in detail", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "The Oil Record Book Part I — purpose, the letter codes, and how entries are made", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-004", "score": 0.5927416086196899, "sibling_score": 0.5927416086196899, "answer_score": 0.23769670128822326, "sibling_qid": "KOC-2025-01-2059-Q013", "sibling_text": "weekly entries of orb internal", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Weekly ORB entries — the mandatory sludge retention record, the bunker entry, and what is voluntary", "cross_family": false } ] }, { "qid": "KOC-2023-10-0226-Q007", "text": "type of storm valves, draw rightangle type storm valve", "family": "General Marine Engineering", "subtopic": "SDNR / SDR", "tid": "KOC-2023-10-0226", "tray": "review", "candidates": [ { "answer_id": "SDNR-SDR-003", "score": 0.7425859570503235, "sibling_score": 0.7425859570503235, "answer_score": 0.48179985880851744, "sibling_qid": "KOC-2026-02-0840-Q005", "sibling_text": "storm valve diagram", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Storm valve -- construction, type, operation as a screw-down non-return valve, and a broken spindle", "cross_family": false }, { "answer_id": "GV-330-001", "score": 0.6202414035797119, "sibling_score": 0.6202414035797119, "answer_score": 0.4257986664772034, "sibling_qid": "KOC-2024-05-1840-Q003", "sibling_text": "gate valve drawing", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Draw and explain the gate valve — construction, main parts, operation & onboard use", "cross_family": false }, { "answer_id": "SDNR-SDR-002", "score": 0.5975214838981628, "sibling_score": 0.5975214838981628, "answer_score": 0.4114981845021248, "sibling_qid": "KOC-2024-09-1862-Q004", "sibling_text": "draw screw down non return valve", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Draw and explain a screw-down non-return (SDNR) valve -- construction and working", "cross_family": false } ] }, { "qid": "KOC-2023-10-0227-Q004", "text": "Dmlc part 1 and Dmlc part 2", "family": "MLC", "subtopic": "MLC / DMLC / Work-Rest", "tid": "KOC-2023-10-0227", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.7181342244148254, "sibling_score": 0.7181342244148254, "answer_score": 0.2931037575006485, "sibling_qid": "MUM-2026-05-3314-Q007", "sibling_text": "dmlc part 1 and part 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "DCP-PPC-003", "score": 0.2290739506483078, "sibling_score": null, "answer_score": 0.2290739506483078, "sibling_qid": "", "sibling_text": "c3 dcp general working advantages disadvantages common issues", "sibling_family": "", "via": "answer_title", "answer_title": "C3 — DCP — General Working, Advantages, Disadvantages & Common Issues", "cross_family": false }, { "answer_id": "MLC-WRH-B-002", "score": 0.21262767314910888, "sibling_score": null, "answer_score": 0.21262767314910888, "sibling_qid": "", "sibling_text": "work and rest hours under mlc the criteria the weekly limit the intervals regulation 2 3 standard a2 3 maximum hours of work or minimum hours of rest the two systems are alternatives not cumulative the dmlc part i states which the flag has chosen maximum work 14 hours in any 24 hour period 72 hours in any 7 day period", "sibling_family": "", "via": "answer_title", "answer_title": "Work and rest hours under MLC — the criteria, the weekly limit, the intervals", "cross_family": false } ] }, { "qid": "KOC-2023-10-0229-Q003", "text": "Stabilizer fins", "family": "SOLAS", "subtopic": "Anti-Roll Tank / Stabiliser", "tid": "KOC-2023-10-0229", "tray": "new", "candidates": [ { "answer_id": "SHAFT-CPP-005", "score": 0.5560343265533447, "sibling_score": 0.5560343265533447, "answer_score": null, "sibling_qid": "KOC-2024-09-2053-Q006", "sibling_text": "propeller boss cap fins", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "5. Propeller types, design criteria & latest developments", "cross_family": true }, { "answer_id": "SPR-STERN-004", "score": 0.5351486206054688, "sibling_score": 0.5351486206054688, "answer_score": 0.3914140075445175, "sibling_qid": "MUM-2026-04-0894-Q003", "sibling_text": "what type of rudder i said semi balanced double plated rudder angle of attack stall angle", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Propeller rake & skew", "cross_family": true }, { "answer_id": "SHAFT-CPP-001", "score": 0.5135434865951538, "sibling_score": 0.5135434865951538, "answer_score": null, "sibling_qid": "MUM-2026-02-2928-Q003", "sibling_text": "propeller curve 4 catfines", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "1. Propeller curve & load diagram", "cross_family": true } ] }, { "qid": "KOC-2023-10-0230-Q005", "text": "Explosive,tankscope", "family": "Gas Detection & Instruments", "subtopic": "Explosimeter / Gas Detector", "tid": "KOC-2023-10-0230", "tray": "review", "candidates": [ { "answer_id": "GAS-DET-006", "score": 0.698020875453949, "sibling_score": 0.698020875453949, "answer_score": 0.47048274874687196, "sibling_qid": "MUM-2026-09-3960-Q006", "sibling_text": "tank scope and explosive meter why used explosive meter if tank scope is there", "sibling_family": "Gas Detection & Instruments", "via": "sibling", "answer_title": "Tankscope vs explosimeter: construction, working, where to use, gases", "cross_family": false }, { "answer_id": "GAS-DET-008", "score": 0.6005997657775879, "sibling_score": 0.6005997657775879, "answer_score": null, "sibling_qid": "KOC-2026-09-2176-Q003", "sibling_text": "explosimeter working", "sibling_family": "Gas Detection & Instruments", "via": "sibling", "answer_title": "Explosimeter: construction, working, calibration, gases detected", "cross_family": false }, { "answer_id": "EXD-EXI-A-002", "score": 0.5766952037811279, "sibling_score": 0.5766952037811279, "answer_score": null, "sibling_qid": "KOC-2022-03-0069-Q004", "sibling_text": "explosion proof explain where in tanker", "sibling_family": "", "via": "sibling", "answer_title": "Ex d (flameproof / explosion-proof) — construction, shipboard applications and maintenance", "cross_family": false } ] }, { "qid": "KOC-2023-10-0230-Q006", "text": "Multigas detect explain", "family": "Gas Detection & Instruments", "subtopic": "Explosimeter / Gas Detector", "tid": "KOC-2023-10-0230", "tray": "new", "candidates": [ { "answer_id": "GAS-DET-003", "score": 0.5304532051086426, "sibling_score": 0.5304532051086426, "answer_score": 0.36616664230823515, "sibling_qid": "CHE-2026-09-3934-Q005", "sibling_text": "multi gas detector function what are the gases", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Gas measuring instruments and what each one reads", "cross_family": true }, { "answer_id": "GAS-DET-008", "score": 0.4782765507698059, "sibling_score": 0.4782765507698059, "answer_score": null, "sibling_qid": "MUM-2025-01-0235-Q002", "sibling_text": "draw explosimeter and explain its working which all gases you can detect through it", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Explosimeter: construction, working, calibration, gases detected", "cross_family": true }, { "answer_id": "FLD-601-001", "score": 0.4718126654624939, "sibling_score": 0.4718126654624939, "answer_score": null, "sibling_qid": "CHE-2025-08-0045-Q005", "sibling_text": "how potable gas detectors calibrated multigas detector lfl ufl flammability diagram", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Draw and explain the hydrocarbon flammability diagram. What is its purpose and functional requirement, why is the line tapered, and how do you mark a point on it?", "cross_family": true } ] }, { "qid": "KOC-2023-10-0231-Q006", "text": "RSO duty", "family": "Surveys - Statutory", "subtopic": "IACS / Classification Society", "tid": "KOC-2023-10-0231", "tray": "new", "candidates": [ { "answer_id": "IACS-324-004", "score": 0.6350617408752441, "sibling_score": 0.6350617408752441, "answer_score": 0.37959836423397064, "sibling_qid": "KOC-2024-03-0325-Q007", "sibling_text": "ro duties", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "4. What are the duties or RO Code responsibilities of a Recognized Organization?", "cross_family": false }, { "answer_id": "PSC-RO-P02-010", "score": 0.6295260787010193, "sibling_score": 0.6295260787010193, "answer_score": 0.42923976182937623, "sibling_qid": "KOC-2026-02-0814-Q004", "sibling_text": "duties of ro", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What are the duties, responsibilities and limitations of an RO?", "cross_family": false }, { "answer_id": "ISPS-P03-003", "score": 0.48933738470077515, "sibling_score": 0.48933738470077515, "answer_score": 0.31511780023574826, "sibling_qid": "KOC-2024-01-0268-Q009", "sibling_text": "sso duties", "sibling_family": "ISPS", "via": "sibling", "answer_title": "Ship Security Officer (SSO): duties and responsibilities", "cross_family": true } ] }, { "qid": "KOC-2023-10-0231-Q007", "text": "Responsibility that can't be assigned to rso", "family": "Surveys - Statutory", "subtopic": "IACS / Classification Society", "tid": "KOC-2023-10-0231", "tray": "review", "candidates": [ { "answer_id": "PSC-RO-P02-010", "score": 0.7170383334159851, "sibling_score": 0.7170383334159851, "answer_score": 0.4320176154375076, "sibling_qid": "KOC-2024-12-0489-Q003", "sibling_text": "what duties cannot be assigned to ro", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What are the duties, responsibilities and limitations of an RO?", "cross_family": false }, { "answer_id": "IACS-324-006", "score": 0.5991633534431458, "sibling_score": 0.5991633534431458, "answer_score": 0.5086492180824279, "sibling_qid": "KOC-2023-12-0255-Q003", "sibling_text": "what all actions on sro cannot perform", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "6. What actions or responsibilities cannot be assigned to an RO by the flag State?", "cross_family": false }, { "answer_id": "IACS-324-004", "score": 0.591026782989502, "sibling_score": 0.591026782989502, "answer_score": 0.37788564413785936, "sibling_qid": "KOC-2024-03-0325-Q007", "sibling_text": "ro duties", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "4. What are the duties or RO Code responsibilities of a Recognized Organization?", "cross_family": false } ] }, { "qid": "KOC-2023-10-0233-Q002", "text": "Type of ship LPG", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2023-10-0233", "tray": "review", "candidates": [ { "answer_id": "LPG-LNG-009", "score": 0.8149837851524353, "sibling_score": 0.8149837851524353, "answer_score": 0.5040941745042801, "sibling_qid": "CHE-2026-04-0164-Q001", "sibling_text": "type of ship sailed lpg carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Gas-carrier fundamentals and ship-specific traps", "cross_family": false }, { "answer_id": "IGC-GAS-004", "score": 0.735783576965332, "sibling_score": 0.735783576965332, "answer_score": null, "sibling_qid": "KOL-2025-08-1014-Q002", "sibling_text": "type of ship sailed lpg classification of gas carriers of as per igc code", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Ship-type classification under the IGC Code — 1G / 2G / 2PG / 3G", "cross_family": true }, { "answer_id": "LPG-LNG-001", "score": 0.7071892619132996, "sibling_score": 0.7071892619132996, "answer_score": null, "sibling_qid": "MUM-2026-09-3961-Q001", "sibling_text": "how lpg ship differ from other ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "LPG vs LNG – properties, carriage and comparison", "cross_family": false } ] }, { "qid": "KOC-2023-10-0233-Q005", "text": "MLC titles explain", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOC-2023-10-0233", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.6772111058235168, "sibling_score": 0.6772111058235168, "answer_score": 0.2839555710554123, "sibling_qid": "KOC-2026-05-2135-Q011", "sibling_text": "mlc titles explain title 1 explain dmlc part 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "MLC-WRH-B-006", "score": 0.52276211977005, "sibling_score": 0.52276211977005, "answer_score": null, "sibling_qid": "MUM-2026-07-3680-Q005", "sibling_text": "what is mlc certificate under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false }, { "answer_id": "MLC-WRH-B-007", "score": 0.44718441367149353, "sibling_score": 0.44718441367149353, "answer_score": null, "sibling_qid": "MUM-2026-07-3688-Q004", "sibling_text": "what is mlc detainable deficiency", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false } ] }, { "qid": "KOC-2023-10-0233-Q008", "text": "Bulbous bow draw and explain. Working. Material of bulbous bow", "family": "", "subtopic": "Bulbous Bow", "tid": "KOC-2023-10-0233", "tray": "new", "candidates": [ { "answer_id": "DRG-B-009", "score": 0.4450463652610779, "sibling_score": 0.4450463652610779, "answer_score": null, "sibling_qid": "KOL-2020-09-0422-Q008", "sibling_text": "bowsing tackle", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Bowsing tackle and tricing pendant", "cross_family": false }, { "answer_id": "PPS-230-006", "score": 0.44022107124328613, "sibling_score": 0.44022107124328613, "answer_score": null, "sibling_qid": "MUM-2026-02-0782-Q011", "sibling_text": "bulbous bow how it is connected to ship shape of bow", "sibling_family": "", "via": "sibling", "answer_title": "Fore-end / fore-peak structure: draw and describe", "cross_family": false }, { "answer_id": "PIST-CSI-A-003", "score": 0.42673417925834656, "sibling_score": 0.42673417925834656, "answer_score": null, "sibling_qid": "KOC-2022-09-2034-Q007", "sibling_text": "piston draw and explain itz materials", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston materials: crown, skirt, rod, rings and coatings", "cross_family": false } ] }, { "qid": "KOC-2023-10-0236-Q002", "text": "Stability curve. Draw and explain whats drawn. All points, significance of 57.3deg, contraflexure, vanishing stability", "family": "", "subtopic": "Bending Moment / Shear / Contraflexure", "tid": "KOC-2023-10-0236", "tray": "new", "candidates": [ { "answer_id": "STAB-GZ-P03-003", "score": 0.6497829556465149, "sibling_score": 0.6497829556465149, "answer_score": 0.49769678711891174, "sibling_qid": "KOL-2019-10-0335-Q004", "sibling_text": "statical stability curve mark angle of downflooding point of contraflexure point of instability", "sibling_family": "", "via": "sibling", "answer_title": "Key points on the GZ curve — max GZ, vanishing stability, downflooding, inflection, instability", "cross_family": false }, { "answer_id": "GZKN-P02-001", "score": 0.6048586368560791, "sibling_score": 0.6048586368560791, "answer_score": null, "sibling_qid": "KOL-2020-02-0391-Q003", "sibling_text": "cross curve of stability statical stability curve details", "sibling_family": "", "via": "sibling", "answer_title": "Cross curves of stability (KN curves) — draw, explain, and use to build the GZ curve", "cross_family": false }, { "answer_id": "STAB-GZ-P01-001", "score": 0.5980243682861328, "sibling_score": 0.5980243682861328, "answer_score": 0.4717634320259094, "sibling_qid": "KOC-2022-04-0070-Q003", "sibling_text": "statical stability curve draw", "sibling_family": "", "via": "sibling", "answer_title": "Draw and explain the statical stability (GZ) curve", "cross_family": false } ] }, { "qid": "KOC-2023-10-0236-Q006", "text": "SMPEP Explain", "family": "MARPOL - Emergency Plans", "subtopic": "SMPEP", "tid": "KOC-2023-10-0236", "tray": "new", "candidates": [ { "answer_id": "A6-NSEC-005", "score": 0.5727406740188599, "sibling_score": 0.5727406740188599, "answer_score": null, "sibling_qid": "MUM-2026-06-3360-Q001", "sibling_text": "explain seemp", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP — Part I, II & III", "cross_family": true }, { "answer_id": "OILPOL-OWS-012", "score": 0.5478405952453613, "sibling_score": 0.5478405952453613, "answer_score": 0.33851732462644574, "sibling_qid": "CHE-2026-08-3896-Q005", "sibling_text": "smpep details", "sibling_family": "MARPOL - Emergency Plans", "via": "sibling", "answer_title": "SMPEP — what it is, and why it isn't just a SOPEP", "cross_family": false }, { "answer_id": "ESP-A-001", "score": 0.5437202453613281, "sibling_score": 0.5437202453613281, "answer_score": null, "sibling_qid": "CHE-2026-08-3874-Q001", "sibling_text": "esp explain", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the Enhanced Survey Programme (ESP), and what is its purpose?", "cross_family": true } ] }, { "qid": "KOC-2023-10-0238-Q001", "text": "Type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2023-10-0238", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8361091613769531, "sibling_score": 0.8361091613769531, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8013883233070374, "sibling_score": 0.8013883233070374, "answer_score": 0.5470469176769256, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8000956177711487, "sibling_score": 0.8000956177711487, "answer_score": 0.5211817562580109, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "KOC-2023-10-0985-Q007", "text": "Cylinder liner overhauling ? Liner got stuck how to remove?", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "KOC-2023-10-0985", "tray": "review", "candidates": [ { "answer_id": "CYL-LINER-P02-002", "score": 0.7658408284187317, "sibling_score": 0.7658408284187317, "answer_score": null, "sibling_qid": "MUM-2026-05-3238-Q009", "sibling_text": "liner seized how to remove", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L2 · T044-PART_02-G002High", "cross_family": false }, { "answer_id": "CYL-LINER-P03-003", "score": 0.7645707726478577, "sibling_score": 0.7645707726478577, "answer_score": 0.6189966142177582, "sibling_qid": "MUM-2026-07-3848-Q001", "sibling_text": "liner seized how to remove", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Removing a stuck cylinder liner — how, and where do you jack?", "cross_family": false }, { "answer_id": "CYL-LINER-P03-008", "score": 0.6962504982948303, "sibling_score": 0.6962504982948303, "answer_score": 0.5380685567855835, "sibling_qid": "KOL-2021-07-3431-Q002", "sibling_text": "me liner removal procedure after cyl head piston removal", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Main-engine cylinder liner removal — full procedure, the lifting tool, and precautions", "cross_family": false } ] }, { "qid": "KOC-2023-10-1284-Q006", "text": "Motor service factor and Frame number", "family": "Electrical - Motors & Starters", "subtopic": "Motor Specification / Ordering", "tid": "KOC-2023-10-1284", "tray": "review", "candidates": [ { "answer_id": "ELECTRICAL-M-A-01", "score": 0.7372009754180908, "sibling_score": 0.7372009754180908, "answer_score": 0.5220795214176178, "sibling_qid": "NOI-2026-09-0005-Q009", "sibling_text": "frame number of motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Motor Frame Number", "cross_family": false }, { "answer_id": "IP-ENCL-001", "score": 0.570346474647522, "sibling_score": 0.570346474647522, "answer_score": null, "sibling_qid": "MUM-2026-01-1899-Q009", "sibling_text": "motor number of terminal", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "IP rating of motors — what the numbers mean", "cross_family": false }, { "answer_id": "IRT-C-006", "score": 0.5687881708145142, "sibling_score": 0.5687881708145142, "answer_score": null, "sibling_qid": "MUM-2023-04-1384-Q003", "sibling_text": "ir value of motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Acceptable IR values, the minimum & \"what if it's low\"", "cross_family": false } ] }, { "qid": "KOC-2023-10-1286-Q005", "text": "what are the Navigational equipments on bridge", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "KOC-2023-10-1286", "tray": "new", "candidates": [ { "answer_id": "LSA-CODE-BF044-002", "score": 0.581395149230957, "sibling_score": 0.581395149230957, "answer_score": null, "sibling_qid": "KOL-2022-03-0612-Q005", "sibling_text": "safety equipment on bridge according to lsa", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What life-saving equipment does the LSA Code / SOLAS Chapter III require on or near the bridge?", "cross_family": true }, { "answer_id": "LT-SRC-004", "score": 0.5799183249473572, "sibling_score": 0.5799183249473572, "answer_score": null, "sibling_qid": "MUM-2026-09-3954-Q004", "sibling_text": "navigation lights", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "What navigation lights are carried, where, and how many?", "cross_family": false }, { "answer_id": "BCME-001", "score": 0.5564543604850769, "sibling_score": 0.5564543604850769, "answer_score": null, "sibling_qid": "MUM-2025-12-1222-Q003", "sibling_text": "manoeuvring diagram details bridge to ecr", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Operating the main engine from the bridge — command, control transfer and telegraph response", "cross_family": true } ] }, { "qid": "KOC-2023-10-1286-Q007", "text": "Hazardoues areas nd zones on oil tanker nd intrinsic safe protection", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOC-2023-10-1286", "tray": "review", "candidates": [ { "answer_id": "TNK-SAFE-BF26-003", "score": 0.7413814067840576, "sibling_score": 0.7413814067840576, "answer_score": 0.6190730661153793, "sibling_qid": "KOL-2026-01-1153-Q006", "sibling_text": "different type of zones in oil tanker in hazardous area example of equipments fitted in different zones", "sibling_family": "", "via": "sibling", "answer_title": "What safeties, including electrical safeties and Ex ratings, are provided on the deck of a tanker?", "cross_family": false }, { "answer_id": "TCM-374-005", "score": 0.7308643460273743, "sibling_score": 0.7308643460273743, "answer_score": null, "sibling_qid": "KOC-2026-02-0826-Q020", "sibling_text": "hazard zone in chemical tanker", "sibling_family": "Chemical Tankers", "via": "sibling", "answer_title": "Gas-freeing a tanker after discharge or before dry dock (why through the IG system)", "cross_family": false }, { "answer_id": "EXD-EXI-A-002", "score": 0.6807752847671509, "sibling_score": 0.6807752847671509, "answer_score": null, "sibling_qid": "KOC-2022-03-0069-Q004", "sibling_text": "explosion proof explain where in tanker", "sibling_family": "", "via": "sibling", "answer_title": "Ex d (flameproof / explosion-proof) — construction, shipboard applications and maintenance", "cross_family": false } ] }, { "qid": "KOC-2023-10-1287-Q006", "text": "6 Electrical hazard area in ur ship?", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOC-2023-10-1287", "tray": "new", "candidates": [ { "answer_id": "TNK-SAFE-BF26-003", "score": 0.6026411056518555, "sibling_score": 0.6026411056518555, "answer_score": 0.5170745313167572, "sibling_qid": "MUM-2026-01-1911-Q002", "sibling_text": "electrical safeties on deck of tanker", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What safeties, including electrical safeties and Ex ratings, are provided on the deck of a tanker?", "cross_family": false }, { "answer_id": "MSB-ESB-D-001", "score": 0.5895084142684937, "sibling_score": 0.5895084142684937, "answer_score": null, "sibling_qid": "KOL-2021-01-2412-Q001", "sibling_text": "various voltages generated on ship and where all applied", "sibling_family": "", "via": "sibling", "answer_title": "Main & emergency switchboards: function, construction & ship power distribution", "cross_family": false }, { "answer_id": "HV-SYS-P02-001", "score": 0.5857947468757629, "sibling_score": 0.5857947468757629, "answer_score": null, "sibling_qid": "KOL-2019-04-2283-Q001", "sibling_text": "high voltage use onboard ship", "sibling_family": "", "via": "sibling", "answer_title": "Why high voltage is used onboard ships", "cross_family": false } ] }, { "qid": "KOC-2023-10-1288-Q003", "text": "Checking diode with multimeter", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Zener / Diode / Rectifier", "tid": "KOC-2023-10-1288", "tray": "review", "candidates": [ { "answer_id": "EPC-P01-02", "score": 0.7484096884727478, "sibling_score": 0.7484096884727478, "answer_score": null, "sibling_qid": "CHE-2026-05-0627-Q008", "sibling_text": "diode testing", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Types of diodes, and where diodes are used on board", "cross_family": false }, { "answer_id": "GMCM-583-A-006", "score": 0.73493891954422, "sibling_score": 0.73493891954422, "answer_score": 0.5720309317111969, "sibling_qid": "KOC-2025-11-1652-Q001", "sibling_text": "how to test diodes and transistors using a multimeter", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "06. Testing diodes and transistors with a multimeter", "cross_family": false }, { "answer_id": "GMCM-583-A-007", "score": 0.7116279602050781, "sibling_score": 0.7116279602050781, "answer_score": null, "sibling_qid": "KOC-2024-01-1324-Q005", "sibling_text": "how to use multimeter hazards associated with using multimeter how many leads how we use it for voltage and current measurement diode measurement if diode function not there", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "07. Hazards and precautions when using a multimeter — and can you check live current with one?", "cross_family": false } ] }, { "qid": "KOC-2023-10-1288-Q007", "text": "Flashing of alternator", "family": "Electrical - Generator & Alternator", "subtopic": "Residual Magnetism / Flashing", "tid": "KOC-2023-10-1288", "tray": "review", "candidates": [ { "answer_id": "RES-MAG-002", "score": 0.7952622771263123, "sibling_score": 0.7952622771263123, "answer_score": null, "sibling_qid": "KOC-2026-09-2201-Q002", "sibling_text": "flashing of alternator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Generator started but no voltage developing — reasons, and your action as Second Engineer", "cross_family": false }, { "answer_id": "RES-MAG-004", "score": 0.7068852782249451, "sibling_score": 0.7068852782249451, "answer_score": null, "sibling_qid": "MUM-2026-06-3484-Q009", "sibling_text": "flashing of generator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Field flashing — the procedure, where the battery connects, which terminal, and the precautions", "cross_family": false }, { "answer_id": "ALT-MAINT-A-001", "score": 0.6617533564567566, "sibling_score": 0.6617533564567566, "answer_score": null, "sibling_qid": "MUM-2026-06-3653-Q019", "sibling_text": "alternator routines", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Routine maintenance & care of a ship’s alternator", "cross_family": false } ] }, { "qid": "KOC-2023-10-1289-Q006", "text": "Motor order & motor frame number", "family": "Electrical - Motors & Starters", "subtopic": "Frame Number", "tid": "KOC-2023-10-1289", "tray": "review", "candidates": [ { "answer_id": "ELECTRICAL-M-A-01", "score": 0.8203075528144836, "sibling_score": 0.8203075528144836, "answer_score": 0.6074215739965438, "sibling_qid": "NOI-2026-09-0005-Q009", "sibling_text": "frame number of motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Motor Frame Number", "cross_family": false }, { "answer_id": "BRG-NOM-001", "score": 0.6867499947547913, "sibling_score": 0.6867499947547913, "answer_score": null, "sibling_qid": "MUM-2026-09-3871-Q005", "sibling_text": "how to order motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Bearing Numbers, Suffixes and What to State When Ordering", "cross_family": false }, { "answer_id": "IP-ENCL-001", "score": 0.6467297077178955, "sibling_score": 0.6467297077178955, "answer_score": null, "sibling_qid": "MUM-2026-01-1899-Q009", "sibling_text": "motor number of terminal", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "IP rating of motors — what the numbers mean", "cross_family": false } ] }, { "qid": "KOC-2023-10-1289-Q007", "text": "Service factor", "family": "Electrical - Motors & Starters", "subtopic": "Motor Specification / Ordering", "tid": "KOC-2023-10-1289", "tray": "new", "candidates": [ { "answer_id": "IMSP-007", "score": 0.5271322727203369, "sibling_score": 0.5271322727203369, "answer_score": null, "sibling_qid": "MUM-2026-03-1997-Q006", "sibling_text": "safety factor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What safeties and protections are provided in an induction motor and its starter — overload, short-circuit, thermal? 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board", "cross_family": false }, { "answer_id": "MLC-WRH-B-007", "score": 0.43782708048820496, "sibling_score": 0.43782708048820496, "answer_score": null, "sibling_qid": "MUM-2024-09-2771-Q003", "sibling_text": "mlc and detainable deficiencies", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false } ] }, { "qid": "KOC-2023-11-0240-Q013", "text": "10,DMLC 1&2 EXPLAIN AND REQUIREMENT", "family": "MLC", "subtopic": "MLC / DMLC / Work-Rest", "tid": "KOC-2023-11-0240", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.6021456718444824, "sibling_score": 0.6021456718444824, "answer_score": 0.3398461133241653, "sibling_qid": "MUM-2026-06-3623-Q002", "sibling_text": "what requirement are there for dmlc 1", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "ISM-ELEM-003", "score": 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first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false } ] }, { "qid": "KOC-2023-11-1297-Q003", "text": "Provision crane electrical failure reasons", "family": "Electrical - Motors & Starters", "subtopic": "Windlass / Crane Motor", "tid": "KOC-2023-11-1297", "tray": "review", "candidates": [ { "answer_id": "CRANE-EMBRK-003", "score": 0.8415137529373169, "sibling_score": 0.8415137529373169, "answer_score": 0.6251990973949432, "sibling_qid": "KOC-2026-05-2139-Q011", "sibling_text": "provisional crane slipping electrical reason", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Electrical causes of provision / deck crane brake slipping (single-phasing and brake-circuit faults)", "cross_family": false }, { "answer_id": "AUX-CRANE-005", "score": 0.5895014315843582, "sibling_score": null, "answer_score": 0.5895014315843582, "sibling_qid": "", "sibling_text": "causes of deck crane trips and how to investigate and 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for a provision crane slipping", "cross_family": false } ] }, { "qid": "KOC-2023-11-1298-Q005", "text": "3 point starter draw and explain", "family": "Electrical - Motors & Starters", "subtopic": "DC Motor Three-Point Starter", "tid": "KOC-2023-11-1298", "tray": "review", "candidates": [ { "answer_id": "STR-DEC-A-001", "score": 0.7513260245323181, "sibling_score": 0.7513260245323181, "answer_score": null, "sibling_qid": "KOC-2026-05-2133-Q010", "sibling_text": "draw and explain 3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "STARTER-DEC-B-003", "score": 0.6344065070152283, "sibling_score": 0.6344065070152283, "answer_score": null, "sibling_qid": "KOC-2023-04-1255-Q006", "sibling_text": "dol starter 3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "DOL starter — use, current, range and limits", "cross_family": false }, { "answer_id": "SDST-A-001", "score": 0.5870903134346008, "sibling_score": 0.5870903134346008, "answer_score": 0.36397258937358856, "sibling_qid": "KOC-2025-01-1459-Q002", "sibling_text": "start delta starter draw explain", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false } ] }, { "qid": "KOC-2023-11-1300-Q002", "text": "How to use current clampmeter", "family": "Gauges & Tools", "subtopic": "Clamp Meter", "tid": "KOC-2023-11-1300", "tray": "review", "candidates": [ { "answer_id": "GMCM-583-A-009", "score": 0.6591639518737793, "sibling_score": 0.6591639518737793, "answer_score": 0.465054714679718, "sibling_qid": "KOC-2021-05-1132-Q002", "sibling_text": "clampmeter working", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", 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The clamp (tong) meter — working principle, types, and why only a single conductor is clamped", "cross_family": true }, { "answer_id": "GMCM-583-A-011", "score": 0.6494347453117371, "sibling_score": 0.6494347453117371, "answer_score": 0.46557138562202455, "sibling_qid": "KOC-2026-05-0028-Q009", "sibling_text": "how to use clamp meters", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "11. Using a clamp meter in service — what it can measure, and where to check on a running motor", "cross_family": true }, { "answer_id": "GMCM-583-A-010", "score": 0.6091750860214233, "sibling_score": 0.6091750860214233, "answer_score": 0.46991500854492185, "sibling_qid": "MUM-2026-05-3004-Q004", "sibling_text": "what is clampmeter if the current the phase is 100 a what will be the reading", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "10. The clamp meter on a three-phase supply — what you read clamping one, two or all three conductors of a 100 A system", "cross_family": true } ] }, { "qid": "KOC-2023-11-1300-Q005", "text": "Various Navigation equipment?", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "KOC-2023-11-1300", "tray": "new", "candidates": [ { "answer_id": "LT-SRC-004", "score": 0.6456651091575623, "sibling_score": 0.6456651091575623, "answer_score": null, "sibling_qid": "MUM-2026-09-3954-Q004", "sibling_text": "navigation lights", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "What navigation lights are carried, where, and how many?", "cross_family": false }, { "answer_id": "SEQ-330-003", "score": 0.6178011298179626, "sibling_score": 0.6178011298179626, "answer_score": null, "sibling_qid": "KOC-2024-04-0335-Q006", "sibling_text": "seq survey apart from lsa ffa navigation", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "SEQ survey scope apart from LSA, FFA and navigation items", "cross_family": true }, { "answer_id": "UNL-330-001", "score": 0.6092938184738159, "sibling_score": 0.6092938184738159, "answer_score": null, "sibling_qid": "MUM-2026-05-3294-Q006", "sibling_text": "gmdss and gmdss equipment", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "What is the function of the main air compressor unloader?", "cross_family": false } ] }, { "qid": "KOC-2023-11-1300-Q006", "text": "Purpose of VDR?", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "KOC-2023-11-1300", "tray": "new", "candidates": [ { "answer_id": "VIT-MECH-A-001", "score": 0.4160291850566864, "sibling_score": 0.4160291850566864, "answer_score": null, "sibling_qid": "MUM-2022-12-1037-Q010", "sibling_text": "purpose of vit", "sibling_family": "2-Stroke - 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Bulk Carriers", "subtopic": "Cargo Hold Level Detector", "tid": "KOC-2023-11-1300", "tray": "new", "candidates": [ { "answer_id": "WIDAS-SMK-007", "score": 0.5891658067703247, "sibling_score": 0.5891658067703247, "answer_score": null, "sibling_qid": "KOL-2025-11-1116-Q001", "sibling_text": "smoke detection system in cargo hold how to test", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Smoke sampling line — testing, confirming clear, and what is in the tube", "cross_family": false }, { "answer_id": "WIDAS-SMK-004", "score": 0.5856911540031433, "sibling_score": 0.5856911540031433, "answer_score": null, "sibling_qid": "KOC-2025-05-1535-Q007", "sibling_text": "widas sensor type working how to test how to replace sensor when cargo hold filled", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Testing, maintenance and sensor replacement of WIDAS", "cross_family": false }, { "answer_id": "WIDAS-SMK-006", "score": 0.555934488773346, "sibling_score": 0.555934488773346, "answer_score": null, "sibling_qid": "KOL-2017-01-0045-Q002", "sibling_text": "cargo hatch fire detection system testing of the system how u will confirm that all pipes are clear how the sample is taken by fan fan material where it is located alarm limits", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Cargo-hold smoke / fire detection system and how it works", "cross_family": false } ] }, { "qid": "KOC-2023-11-1301-Q007", "text": "Deck equiments , gmdss , radar ( x band and s band )", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "KOC-2023-11-1301", "tray": "new", "candidates": [ { "answer_id": "UNL-330-001", "score": 0.616579532623291, "sibling_score": 0.616579532623291, "answer_score": null, "sibling_qid": "MUM-2026-05-3294-Q006", "sibling_text": "gmdss and gmdss equipment", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "What is the function of the main air compressor unloader?", "cross_family": false }, { "answer_id": "bdc-p05-03", "score": 0.5817323923110962, "sibling_score": 0.5817323923110962, "answer_score": null, "sibling_qid": "KOC-2026-02-1695-Q006", "sibling_text": "gmdss equipments", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "CQ-BDC-025 GMDSS reserve battery — requirement, supply, voltage and equipment Medium", "cross_family": true }, { "answer_id": "bdc-p05-04", "score": 0.5191356539726257, "sibling_score": 0.5191356539726257, "answer_score": null, "sibling_qid": "MUM-2026-06-3591-Q004", "sibling_text": "gmdss and emergency battery", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "CQ-BDC-027 GMDSS, emergency and engine-starting batteries — three systems, three rules Medium", "cross_family": true } ] }, { "qid": "KOC-2023-11-1301-Q008", "text": "Diffrent hazardous zone on ur ship .. battrey room comes under which zone", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOC-2023-11-1301", "tray": "review", "candidates": [ { "answer_id": "BDC-P06-01", "score": 0.6791161894798279, "sibling_score": 0.6791161894798279, "answer_score": 0.5315876752138138, "sibling_qid": "CHE-2025-08-0298-Q002", "sibling_text": "hazards in battery room", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "Battery-room hazards, requirements and entry precautions", "cross_family": false }, { "answer_id": "TNK-SAFE-BF26-003", "score": 0.6586352586746216, "sibling_score": 0.6586352586746216, "answer_score": 0.5801138579845428, "sibling_qid": "KOL-2026-01-1153-Q006", "sibling_text": "different type of zones in oil tanker in hazardous area example of equipments fitted in different zones", "sibling_family": "", "via": "sibling", "answer_title": "What safeties, including electrical safeties and Ex ratings, are provided on the deck of a tanker?", "cross_family": false }, { "answer_id": "TCM-374-005", "score": 0.629673182964325, "sibling_score": 0.629673182964325, "answer_score": null, "sibling_qid": "KOC-2026-02-0826-Q020", "sibling_text": "hazard zone in chemical tanker", "sibling_family": "Chemical Tankers", "via": "sibling", "answer_title": "Gas-freeing a tanker after discharge or before dry dock (why through the IG system)", "cross_family": false } ] }, { "qid": "KOC-2023-11-1304-Q001", "text": "3point starter", "family": "Electrical - 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Motors & Starters", "via": "sibling", "answer_title": "Soft Starter — Definition, Purpose and Working", "cross_family": false } ] }, { "qid": "KOC-2023-12-0252-Q003", "text": "Rudder diagram", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOC-2023-12-0252", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.652678906917572, "sibling_score": 0.652678906917572, "answer_score": null, "sibling_qid": "CHE-2026-05-0635-Q004", "sibling_text": "how wil you identify the rudder type jus looking at diagram or jus by looking at it", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "DUS-P5-03", "score": 0.6332648396492004, "sibling_score": 0.6332648396492004, "answer_score": 0.44535915553569794, "sibling_qid": "KOC-2024-12-2058-Q002", "sibling_text": "draw aft portion of the ship without propeller and rudder in it show the rudder axis which pass through the structure", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Stern frame construction, cross-section and rudder-axis sketch", "cross_family": true }, { "answer_id": "HULL-PAINT-002", "score": 0.6313706040382385, "sibling_score": 0.6313706040382385, "answer_score": null, "sibling_qid": "CHE-2026-02-0110-Q012", "sibling_text": "rudder internal painting", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Types of hull coating, the paint scheme by section, and why each is used", "cross_family": false } ] }, { "qid": "KOC-2023-12-0252-Q004", "text": "Difference between tpa and immersion suit", "family": "SOLAS - 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Emergency bilge suction — the bilge injection valve, testing and SOLAS requirements", "cross_family": false }, { "answer_id": "PPS-622-004", "score": 0.6817411780357361, "sibling_score": 0.6817411780357361, "answer_score": 0.5370110481977463, "sibling_qid": "KOL-2017-01-3023-Q005", "sibling_text": "er bilge pump not taking suction some more questions result cleared both cleared class 2 thank you all", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "The bilge or ballast pump is not taking suction — reasons, how to identify the problem, how to rectify it. 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What actions will you take as 2E?", "family": "2-Stroke - Operations & Casualty", "subtopic": "Unit Hot / Overheating", "tid": "KOC-2023-12-0986", "tray": "new", "candidates": [ { "answer_id": "HUM-334-002", "score": 0.6397477984428406, "sibling_score": 0.6397477984428406, "answer_score": null, "sibling_qid": "KOL-2019-06-3249-Q004", "sibling_text": "action when vessel going to tropical climate where high humidity observed cooling and dehumidification process how cooling is increased", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "What action do you take when the AC delivers humid air, or the vessel is in a tropical / high-humidity climate?", "cross_family": true }, { "answer_id": "JCW-SYS-003", "score": 0.6106773614883423, "sibling_score": 0.6106773614883423, "answer_score": null, "sibling_qid": "MUM-2026-06-3420-Q007", "sibling_text": "me sea water cooled temp starting to rise your actions", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "ME jacket-water temperature is rising on all units and will not hold setpoint - reasons, your actions as 2/E, and telling which side of the cooler is leaking", "cross_family": true }, { "answer_id": "INT-SHAFT-003", "score": 0.5993549823760986, "sibling_score": 0.5993549823760986, "answer_score": null, "sibling_qid": "MUM-2025-08-2348-Q006", "sibling_text": "during sailing intermediate shaft high temp alarm came what will you do", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "3. 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Type of ship- Gas carrier Explain type of gas carrier, construction of cargo tank and its material", "family": "Cargo Ops - Gas Carriers", "subtopic": "Cargo Tank Construction", "tid": "KOC-2024-01-0277", "tray": "review", "candidates": [ { "answer_id": "GC-TANK-004", "score": 0.7458035945892334, "sibling_score": 0.7458035945892334, "answer_score": 0.6179239571094512, "sibling_qid": "KOL-2025-04-0931-Q007", "sibling_text": "cargo tank construction lpg carrier int", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Gas-carrier cargo tank construction: materials, insulation, fixing and tank safeties", "cross_family": false }, { "answer_id": "GC-TANK-001", "score": 0.7374637722969055, "sibling_score": 0.7374637722969055, "answer_score": 0.5960899233818054, "sibling_qid": "CHE-2026-02-0115-Q003S2", "sibling_text": "types of tanks in gas carriers", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Main cargo containment and independent tank types on LPG and LNG carriers", "cross_family": false }, { "answer_id": "IGC-GAS-004", "score": 0.7362022995948792, "sibling_score": 0.7362022995948792, "answer_score": null, "sibling_qid": "KOL-2025-08-1014-Q002", "sibling_text": "type of ship sailed lpg classification of gas carriers of as per igc code", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Ship-type classification under the IGC Code — 1G / 2G / 2PG / 3G", "cross_family": false } ] }, { "qid": "KOC-2024-01-0278-Q009", "text": "Rudder carrier bearing diagram", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOC-2024-01-0278", "tray": "review", "candidates": [ { "answer_id": "TRS-002", "score": 0.7434911131858826, "sibling_score": 0.7434911131858826, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "PRE-TEN-001", "score": 0.732644259929657, "sibling_score": 0.732644259929657, "answer_score": null, "sibling_qid": "MUM-2026-06-3504-Q007", "sibling_text": "rudder carrier bearing removal procedure", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Pre-stressing and pre-tensioning in main-engine bolting", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.6869852542877197, "sibling_score": 0.6869852542877197, "answer_score": 0.4952275276184082, "sibling_qid": "CHE-2026-02-0110-Q006", "sibling_text": "how rudder weight is carried key ans i said carrier bearing how it carrying explain", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false } ] }, { "qid": "KOC-2024-01-0279-Q004", "text": "■MLC title, X questions explain title 1 and contents DMLC 1 and 2", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOC-2024-01-0279", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.723925769329071, "sibling_score": 0.723925769329071, "answer_score": 0.29900182634592054, "sibling_qid": "KOC-2026-05-2135-Q011", "sibling_text": "mlc titles explain title 1 explain dmlc part 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "PSC-001", "score": 0.2932901248335838, "sibling_score": null, "answer_score": 0.2932901248335838, "sibling_qid": "", "sibling_text": "1 what is psc why it is required and its legal basis and scope", "sibling_family": "", "via": "answer_title", "answer_title": "1. What is PSC, why it is required, and its legal basis and scope", "cross_family": false }, { "answer_id": "ISM-ELEM-003", "score": 0.27744679898023605, "sibling_score": null, "answer_score": 0.27744679898023605, "sibling_qid": "", "sibling_text": "elements chapters structure of the ism code part a implementation the 12 elements 1 general 1 1 definitions 1 2 objectives 1 3 application 1 4 functional requirements for an sms", "sibling_family": "", "via": "answer_title", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": false } ] }, { "qid": "KOC-2024-01-0281-Q003", "text": "Mlc titles and title 2 explain", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOC-2024-01-0281", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.6611619591712952, "sibling_score": 0.6611619591712952, "answer_score": 0.2353901743888855, "sibling_qid": "KOC-2026-05-2135-Q011", "sibling_text": "mlc titles explain title 1 explain dmlc part 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "MLC-WRH-B-006", "score": 0.42202919721603394, "sibling_score": 0.42202919721603394, "answer_score": null, "sibling_qid": "MUM-2026-07-3680-Q005", "sibling_text": "what is mlc certificate under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false }, { "answer_id": "ISM-2E-A-001", "score": 0.4039914011955261, "sibling_score": 0.4039914011955261, "answer_score": null, "sibling_qid": "CHE-2026-04-0163-Q018", "sibling_text": "role of 2e in mlc and ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Roles, duties and responsibilities of a Second Engineer under ISM/SMS", "cross_family": true } ] }, { "qid": "KOC-2024-01-0281-Q004", "text": "Dmlc 1 and 2", "family": "MLC", "subtopic": "MLC / DMLC / Work-Rest", "tid": "KOC-2024-01-0281", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.7910091280937195, "sibling_score": 0.7910091280937195, "answer_score": 0.28094319403171536, "sibling_qid": "MUM-2026-04-0877-Q003", "sibling_text": "dmlc 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "DCP-PPC-003", "score": 0.24597458243370054, "sibling_score": null, "answer_score": 0.24597458243370054, "sibling_qid": "", "sibling_text": "c3 dcp general working advantages disadvantages common issues", "sibling_family": "", "via": "answer_title", "answer_title": "C3 — DCP — General Working, Advantages, Disadvantages & Common Issues", "cross_family": false }, { "answer_id": "XFMR-THY-G-002", "score": 0.24586132317781448, "sibling_score": null, "answer_score": 0.24586132317781448, "sibling_qid": "", "sibling_text": "2 transformer parallel operation", "sibling_family": "", "via": "answer_title", "answer_title": "2. Transformer parallel operation", "cross_family": false } ] }, { "qid": "KOC-2024-01-0285-Q006", "text": "■mlc chapters", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOC-2024-01-0285", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.5401409268379211, "sibling_score": 0.5401409268379211, "answer_score": null, "sibling_qid": "KOC-2026-05-2135-Q011", "sibling_text": "mlc titles explain title 1 explain dmlc part 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "ISM-ELEM-003", "score": 0.4878416657447815, "sibling_score": 0.4878416657447815, "answer_score": null, "sibling_qid": "KOC-2026-10-2218-Q007", "sibling_text": "ism all chapters", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": true }, { "answer_id": "SOLAS12-C-001", "score": 0.47142040729522705, "sibling_score": 0.47142040729522705, "answer_score": null, "sibling_qid": "KOC-2026-01-0788-Q005", "sibling_text": "solas chapter xii and how many chapters", "sibling_family": "", "via": "sibling", "answer_title": "Explain SOLAS Chapter XII for bulk carriers — oral-exam overview", "cross_family": false } ] }, { "qid": "KOC-2024-01-0286-Q003", "text": "What is r.s.o (recognised security organisation)? What all duties carried out by r.s.o? What all cannot be assigned to r.s.o by flagstate?", "family": "Surveys - Statutory", "subtopic": "IACS / Classification Society", "tid": "KOC-2024-01-0286", "tray": "new", "candidates": [ { "answer_id": "PSC-RO-P02-010", "score": 0.5474225282669067, "sibling_score": 0.5474225282669067, "answer_score": 0.48274570405483247, "sibling_qid": "KOC-2024-12-0489-Q003", "sibling_text": "what duties cannot be assigned to ro", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What are the duties, responsibilities and limitations of an RO?", "cross_family": false }, { "answer_id": "IACS-324-004", "score": 0.511098325252533, "sibling_score": 0.511098325252533, "answer_score": 0.4750380456447601, "sibling_qid": "KOC-2024-03-0321-Q012", "sibling_text": "ro duties", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "4. What are the duties or RO Code responsibilities of a Recognized Organization?", "cross_family": false }, { "answer_id": "IACS-324-006", "score": 0.49062520265579224, "sibling_score": 0.49062520265579224, "answer_score": 0.4302493423223495, "sibling_qid": "KOC-2023-12-0255-Q003", "sibling_text": "what all actions on sro cannot perform", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "6. What actions or responsibilities cannot be assigned to an RO by the flag State?", "cross_family": false } ] }, { "qid": "KOC-2024-01-0289-Q015", "text": "If doubt in waste oil tank transfers while filling ORB where to look", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "KOC-2024-01-0289", "tray": "new", "candidates": [ { "answer_id": "CO2-SYS-006", "score": 0.6437390446662903, "sibling_score": 0.6437390446662903, "answer_score": null, "sibling_qid": "KOC-2026-04-0903-Q005", "sibling_text": "in orb entries aux engine sump oil renewal manual transfer in which code and section", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "CO2 bottles, manifolds, pilot cylinders and valve components", "cross_family": false }, { "answer_id": "CC-RELIEF-312-002", "score": 0.6108505725860596, "sibling_score": 0.6108505725860596, "answer_score": null, "sibling_qid": "MUM-2026-02-2919-Q010", "sibling_text": "oil in observation tank not accepting if you say oil coming from fuel tanks or from steam traps motor pass mep repeat", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Crankcase / camcase inspection — checks and contamination", "cross_family": true }, { "answer_id": "CASC-COND-001", "score": 0.609627366065979, "sibling_score": 0.609627366065979, "answer_score": 0.4657029092311859, "sibling_qid": "KOC-2025-07-1043-Q011", "sibling_text": "oil in cascade tank where you will c and how you will trace from where the oil has leaked", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Oil found in the cascade tank, hotwell or observation tank — actions, tracing the source, and preventing ingress", "cross_family": true } ] }, { "qid": "KOC-2024-01-0289-Q016", "text": "Document normally attached to ORB", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "KOC-2024-01-0289", "tray": "review", "candidates": [ { "answer_id": "ORB-IOPP-OWS-002", "score": 0.7161872982978821, "sibling_score": 0.7161872982978821, "answer_score": null, "sibling_qid": "CHE-2026-05-0543-Q003", "sibling_text": "orb in details", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "The Oil Record Book Part I — purpose, the letter codes, and how entries are made", "cross_family": false }, { "answer_id": "OWS-ORB-006", "score": 0.6606813669204712, "sibling_score": 0.6606813669204712, "answer_score": null, "sibling_qid": "MUM-2025-09-0447-Q007", "sibling_text": "orb entries", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "6. Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": false }, { "answer_id": "OPRC-SALV-003", "score": 0.5628968477249146, "sibling_score": 0.5628968477249146, "answer_score": null, "sibling_qid": "MUM-2023-10-2748-Q007", "sibling_text": "oprc and its documents onboard", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "OPRC onboard documents — what the ship actually carries", "cross_family": true } ] }, { "qid": "KOC-2024-01-0289-Q017", "text": "What all are required to write in ORB with respect to waste oil", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "KOC-2024-01-0289", "tray": "new", "candidates": [ { "answer_id": "OWS-ORB-006", "score": 0.6404325366020203, "sibling_score": 0.6404325366020203, "answer_score": null, "sibling_qid": "KOL-2026-03-1197-Q005", "sibling_text": "orb bunkering codes and details where to mention lube oil received in bulk and lube oil received in drums", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "6. Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": false }, { "answer_id": "OILRES-DISCH-TOPIC467-FINAL-002", "score": 0.6401565670967102, "sibling_score": 0.6401565670967102, "answer_score": null, "sibling_qid": "MUM-2024-07-0187-Q004", "sibling_text": "what is the requirements of oil residue discharge", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Transferring, disposing and discharging oil residue (sludge) — procedure and MARPOL requirement", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-006", "score": 0.6118323802947998, "sibling_score": 0.6118323802947998, "answer_score": null, "sibling_qid": "KOL-2020-02-0393-Q002", "sibling_text": "oil content monitor requirements as per marpol what are the entries made in orb w r t ocm what surveyors check in ocm monitor", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "The oil content monitor / 15 ppm bilge alarm — MARPOL requirement, ORB entries, and surveyor checks", "cross_family": false } ] }, { "qid": "KOC-2024-01-0289-Q018", "text": "What is code C and sub point like C 11.1,2,3,4", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "KOC-2024-01-0289", "tray": "new", "candidates": [ { "answer_id": "LL-CONV-P06-002", "score": 0.3944668769836426, "sibling_score": 0.3944668769836426, "answer_score": null, "sibling_qid": "MUM-2025-12-0633-Q002", "sibling_text": "load line c1 c2 c3", "sibling_family": "", "via": "sibling", "answer_title": "LLC-P06-02 - Types of load lines: standard, seasonal, timber, WNA and multiple load lines", "cross_family": false }, { "answer_id": "A6-NSEC-005", "score": 0.37970298528671265, "sibling_score": 0.37970298528671265, "answer_score": null, "sibling_qid": "MUM-2023-08-0120-Q001", "sibling_text": "seemp 1 2 3 and cii", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP — Part I, II & III", "cross_family": true }, { "answer_id": "IMO-CODES-P03-001", "score": 0.3707956373691559, "sibling_score": 0.3707956373691559, "answer_score": null, "sibling_qid": "KOL-2025-09-1060-Q007", "sibling_text": "4 convention 4 codes how does codes comes", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Important IMO conventions and codes: parent links", "cross_family": true } ] }, { "qid": "KOC-2024-01-0291-Q004", "text": "■MEPC", "family": "IMO Structure & Conventions", "subtopic": "Latest MEPC Outcomes / GHG Strategy", "tid": "KOC-2024-01-0291", "tray": "new", "candidates": [ { "answer_id": "IMO-CC-P01-003", "score": 0.644923746585846, "sibling_score": 0.644923746585846, "answer_score": null, "sibling_qid": "KOC-2025-07-0638-Q005", "sibling_text": "mepc msc", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Name the IMO Committees and Sub-Committees (MSC, MEPC, FAL …) and state their functions.", "cross_family": false }, { "answer_id": "AV6-P01-01", "score": 0.640955924987793, "sibling_score": 0.640955924987793, "answer_score": null, "sibling_qid": "KOC-2026-03-0884-Q005", "sibling_text": "mepc 83", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Explain the latest Annex VI amendment or MEPC development, and state its date and status.", "cross_family": false }, { "answer_id": "MEPC-GHG-004", "score": 0.5883635878562927, "sibling_score": 0.5883635878562927, "answer_score": null, "sibling_qid": "KOC-2023-10-0226-Q001", "sibling_text": "mepc 98", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Explain MEPC 82 and its new regulations.", "cross_family": true } ] }, { "qid": "KOC-2024-01-0291-Q006", "text": "■statical stability curve .Explain angle of contraflexure", "family": "", "subtopic": "Bending Moment / Shear / Contraflexure", "tid": "KOC-2024-01-0291", "tray": "review", "candidates": [ { "answer_id": "STAB-GZ-P03-003", "score": 0.7231224775314331, "sibling_score": 0.7231224775314331, "answer_score": 0.46813508272171017, "sibling_qid": "KOL-2019-10-0335-Q004", "sibling_text": "statical stability curve mark angle of downflooding point of contraflexure point of instability", "sibling_family": "", "via": "sibling", "answer_title": "Key points on the GZ curve — max GZ, vanishing stability, downflooding, inflection, instability", "cross_family": false }, { "answer_id": "BM-SF-CF-001", "score": 0.6869053840637207, "sibling_score": 0.6869053840637207, "answer_score": 0.5391343235969543, "sibling_qid": "KOL-2026-09-4308-Q001", "sibling_text": "gz curve angle of contraflexure", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Point (“angle”) of contraflexure — what it is and how to find it", "cross_family": false }, { "answer_id": "LOLL-P02-005", "score": 0.6288471221923828, "sibling_score": 0.6288471221923828, "answer_score": 0.51304831802845, "sibling_qid": "MUM-2025-12-0618-Q020", "sibling_text": "what is angle of loll angle of contraflexure", "sibling_family": "", "via": "sibling", "answer_title": "5. Loll among the limits — vanishing stability, lurch, downflooding, contraflexure", "cross_family": false } ] }, { "qid": "KOC-2024-01-0293-Q002", "text": "Lifeboat winch criteria. Draw anyone brake of winch", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Davit / Release Gear", "tid": "KOC-2024-01-0293", "tray": "review", "candidates": [ { "answer_id": "DRG-B-002", "score": 0.7221158742904663, "sibling_score": 0.7221158742904663, "answer_score": 0.5482216119766236, "sibling_qid": "KOC-2022-01-0955-Q004", "sibling_text": "sectional diagram of lifeboat winch how lifeboat winch is hoisting with brake applies", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "The lifeboat winch — construction, hoisting and long-term maintenance", "cross_family": false }, { "answer_id": "LBT-TEST-B-003", "score": 0.6793333888053894, "sibling_score": 0.6793333888053894, "answer_score": null, "sibling_qid": "MUM-2022-10-0061-Q008", "sibling_text": "dynamic load test on lifeboat winch brake checks after", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Winch/davit brake test — static vs dynamic, holding capacity, slippage", "cross_family": false }, { "answer_id": "DRG-583-A-008", "score": 0.6755276322364807, "sibling_score": 0.6755276322364807, "answer_score": null, "sibling_qid": "KOC-2026-04-0912-Q009", "sibling_text": "draw lifeboat davit brake", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Davit safeties, and the limit switch", "cross_family": false } ] }, { "qid": "KOC-2024-01-0987-Q009", "text": "What is Turndown Ratio?", "family": "Boilers - Operations & Firing", "subtopic": "Burner Type (Rotary Cup / Pressure Jet)", "tid": "KOC-2024-01-0987", "tray": "review", "candidates": [ { "answer_id": "TDR-584-001", "score": 0.6700400114059448, "sibling_score": 0.6700400114059448, "answer_score": 0.3506487309932709, "sibling_qid": "MUM-2026-05-3267-Q008", "sibling_text": "turndown ratio", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "What is the turndown ratio of a marine boiler? Explain.", "cross_family": false }, { "answer_id": "BFS-257-004", "score": 0.6607864499092102, "sibling_score": 0.6607864499092102, "answer_score": null, "sibling_qid": "KOC-2025-02-1900-Q001", "sibling_text": "turn down ratio", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler burner turn-down ratio", "cross_family": false }, { "answer_id": "ETP-344-P01-009", "score": 0.37770477384328843, "sibling_score": null, "answer_score": 0.37770477384328843, "sibling_qid": "", "sibling_text": "turndown ratio turndown maximum usable output minimum stable controllable output a ratio wide turndown low minimum stable rpm good slow steaming and manoeuvring flexibility", "sibling_family": "", "via": "answer_title", "answer_title": "Turndown ratio", "cross_family": false } ] }, { "qid": "KOC-2024-01-1316-Q002", "text": "3point starter diagram", "family": "Electrical - Motors & Starters", "subtopic": "DC Motor Three-Point Starter", "tid": "KOC-2024-01-1316", "tray": "review", "candidates": [ { "answer_id": "SDST-A-001", "score": 0.6624987125396729, "sibling_score": 0.6624987125396729, "answer_score": 0.3801137685775757, "sibling_qid": "KOC-2026-02-1701-Q005", "sibling_text": "three point starter diagram with explanation", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false }, { "answer_id": "STR-DEC-A-001", "score": 0.613657534122467, "sibling_score": 0.613657534122467, "answer_score": null, "sibling_qid": "KOC-2026-05-2133-Q010", "sibling_text": "draw and explain 3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "STARTER-DEC-B-003", "score": 0.6050073504447937, "sibling_score": 0.6050073504447937, "answer_score": null, "sibling_qid": "KOC-2023-04-1255-Q006", "sibling_text": "dol starter 3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "DOL starter — use, current, range and limits", "cross_family": false } ] }, { "qid": "KOC-2024-01-1319-Q001", "text": "Three point starter Diagram explanation", "family": "Electrical - Motors & Starters", "subtopic": "DC Motor Three-Point Starter", "tid": "KOC-2024-01-1319", "tray": "review", "candidates": [ { "answer_id": "SDST-A-001", "score": 0.8253576755523682, "sibling_score": 0.8253576755523682, "answer_score": 0.5351212322711945, "sibling_qid": "KOC-2026-02-1701-Q005", "sibling_text": "three point starter diagram with explanation", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false }, { "answer_id": "IMSP-004", "score": 0.517799887061119, "sibling_score": null, "answer_score": 0.517799887061119, "sibling_qid": "", "sibling_text": "explain the star delta starter and what you find inside it when you open it its components needs a six terminal motor both ends of all three windings in star each winding sees line voltage divided by root three about 58 of rated", "sibling_family": "", "via": "answer_title", "answer_title": "Explain the star-delta starter, and what you find inside it when you open it — its components.", "cross_family": false }, { "answer_id": "SDST-B-001", "score": 0.5096821039915085, "sibling_score": null, "answer_score": 0.5096821039915085, "sibling_qid": "", "sibling_text": "explain the star delta control circuit timer interlocks changeover and how the switching point is chosen start path includes stop contact overload contact start button main hold in auxiliary star delta electrical interlocks and timer main and star energise for start timer begins timing main auxiliary seals the circuit", "sibling_family": "", "via": "answer_title", "answer_title": "Explain the star-delta control circuit - timer, interlocks, changeover and how the switching point is chosen.", "cross_family": false } ] }, { "qid": "KOC-2024-01-1320-Q007", "text": "What is motor service factor", "family": "Electrical - Motors & Starters", "subtopic": "Motor Specification / Ordering", "tid": "KOC-2024-01-1320", "tray": "new", "candidates": [ { "answer_id": "BOW-THR-003", "score": 0.5276085138320923, "sibling_score": 0.5276085138320923, "answer_score": null, "sibling_qid": "CHE-2026-02-0341-Q008", "sibling_text": "rating of the motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Bow-thruster motor — type, supply voltage, starter, connection and VFD control", "cross_family": false }, { "answer_id": "IMSP-007", "score": 0.5250527858734131, "sibling_score": 0.5250527858734131, "answer_score": null, "sibling_qid": "MUM-2026-01-1847-Q007", "sibling_text": "what is factor of safety in motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What safeties and protections are provided in an induction motor and its starter — overload, short-circuit, thermal? What about a motor on deck, and large three-phase motors?", "cross_family": false }, { "answer_id": "IM-TSS-P03-FINAL-1-001", "score": 0.5177919864654541, "sibling_score": 0.5177919864654541, "answer_score": null, "sibling_qid": "CHE-2025-12-0321-Q002", "sibling_text": "factors affecting motor speed", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Speed control of induction / AC motors — methods and onboard use", "cross_family": false } ] }, { "qid": "KOC-2024-01-1322-Q002", "text": "■Ex types", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOC-2024-01-1322", "tray": "new", "candidates": [ { "answer_id": "EXD-EXI-A-002", "score": 0.6218730807304382, "sibling_score": 0.6218730807304382, "answer_score": 0.33482850790023805, "sibling_qid": "KOC-2025-05-2064-Q007", "sibling_text": "ex i and exd", "sibling_family": "", "via": "sibling", "answer_title": "Ex d (flameproof / explosion-proof) — construction, shipboard applications and maintenance", "cross_family": false }, { "answer_id": "EXD-EXI-A-001", "score": 0.6048442125320435, "sibling_score": 0.6048442125320435, "answer_score": null, "sibling_qid": "CHE-2026-02-0335-Q007", "sibling_text": "exi and exd", "sibling_family": "", "via": "sibling", "answer_title": "Ex i (intrinsically safe) vs Ex d (flameproof / explosion-proof) — the difference", "cross_family": false }, { "answer_id": "KGF-A-003", "score": 0.3557233586907387, "sibling_score": null, "answer_score": 0.3557233586907387, "sibling_qid": "", "sibling_text": "frames types purpose", "sibling_family": "", "via": "answer_title", "answer_title": "Frames: types & purpose", "cross_family": false } ] }, { "qid": "KOC-2024-01-1323-Q002", "text": "GMDSS", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "KOC-2024-01-1323", "tray": "review", "candidates": [ { "answer_id": "UNL-330-001", "score": 0.7301872372627258, "sibling_score": 0.7301872372627258, "answer_score": null, "sibling_qid": "MUM-2026-05-3273-Q008", "sibling_text": "gmdss", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "What is the function of the main air compressor unloader?", "cross_family": false }, { "answer_id": "bdc-p05-03", "score": 0.6262571215629578, "sibling_score": 0.6262571215629578, "answer_score": 0.39977553486824036, "sibling_qid": "CHE-2026-04-0379-Q005", "sibling_text": "gmdss source of supply", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "CQ-BDC-025 GMDSS reserve battery — requirement, supply, voltage and equipment Medium", "cross_family": true }, { "answer_id": "bdc-p05-04", "score": 0.5649181604385376, "sibling_score": 0.5649181604385376, "answer_score": 0.3977350190281868, "sibling_qid": "MUM-2026-05-3288-Q005", "sibling_text": "solas requirement for gmdss and emergency battery", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "CQ-BDC-027 GMDSS, emergency and engine-starting batteries — three systems, three rules Medium", "cross_family": true } ] }, { "qid": "KOC-2024-01-1824-Q003", "text": "Safety valve setting in presence of surveyor? Draw Improved High lift Safety Valve?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2024-01-1824", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.7459937930107117, "sibling_score": 0.7459937930107117, "answer_score": null, "sibling_qid": "KOL-2026-02-3913-Q004", "sibling_text": "improved high lift safety valve pressure setting 3 above designated set pressure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.7425501942634583, "sibling_score": 0.7425501942634583, "answer_score": null, "sibling_qid": "KOC-2026-09-2205-Q019", "sibling_text": "setting safety valve infront of surveyor", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "ECON-EGB-004", "score": 0.5430100142955779, "sibling_score": null, "answer_score": 0.5430100142955779, "sibling_qid": "", "sibling_text": "safety valve setting after overhaul why set higher than the boiler setting raise pressure under steam on a calibrated gauge adjust spring compression to lift at the approved set pressure verify re seat and blowdown two valves one at a time the other gagged lock and seal surveyor witnessed values are class approved ship specific set pressure accumulation representative limit and blowdown quote the ", "sibling_family": "", "via": "answer_title", "answer_title": "Safety-valve setting after overhaul & why set higher than the boiler", "cross_family": false } ] }, { "qid": "KOC-2024-01-1829-Q004", "text": "manual operation of purifier Alfa Laval ?what happens when we opens operating water? Water passage way?", "family": "Purifier & Centrifuges", "subtopic": "Purifier Operation / Bowl", "tid": "KOC-2024-01-1829", "tray": "new", "candidates": [ { "answer_id": "PUR-DSL-001", "score": 0.6107873916625977, "sibling_score": 0.6107873916625977, "answer_score": 0.4821019172668457, "sibling_qid": "MUM-2026-05-3220-Q006", "sibling_text": "purifier desludging procedure how does the bowl close", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Manual desludging of a purifier — the step-by-step procedure", "cross_family": false }, { "answer_id": "PURIF-BOWL-P02-001", "score": 0.6012279391288757, "sibling_score": 0.6012279391288757, "answer_score": 0.5033961772918701, "sibling_qid": "KOL-2025-12-1827-Q009", "sibling_text": "manual starting of purifier", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Bowl opening, closing & manual desludging — mechanism, manual operation, failure causes", "cross_family": false }, { "answer_id": "PUR-BOWL-P03-FINAL-1-003", "score": 0.5932393670082092, "sibling_score": 0.5932393670082092, "answer_score": null, "sibling_qid": "KOL-2026-09-4314-Q003", "sibling_text": "what do you do next after stopping the feed when a purifier overflows", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "3. Overflow, Oil-Over-Water and Sludge Carry-Over — Causes, Checks and After-Overhaul Action", "cross_family": false } ] }, { "qid": "KOC-2024-02-0294-Q003", "text": "What is difference in lpg and tanker ig system", "family": "Cargo Ops - Tankers", "subtopic": "IG System", "tid": "KOC-2024-02-0294", "tray": "new", "candidates": [ { "answer_id": "COT-P02-03", "score": 0.6248745918273926, "sibling_score": 0.6248745918273926, "answer_score": 0.44129803478717805, "sibling_qid": "MUM-2026-03-0852-Q002", "sibling_text": "ig system system on deck diff between product tanker and oil tanker", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Compare a boiler-flue inert-gas system with a dedicated inert-gas generator and explain why suitable boiler flue gas—not main-engine exhaust—is normally used.", "cross_family": false }, { "answer_id": "COT-P02-01", "score": 0.6100371479988098, "sibling_score": 0.6100371479988098, "answer_score": null, "sibling_qid": "KOC-2025-05-0599-Q009", "sibling_text": "explain ig system in tankers", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Draw and explain the complete tanker inert-gas system from gas production to the cargo tanks, identifying the main plant, control and deck components.", "cross_family": false }, { "answer_id": "FLD-601-001", "score": 0.6004214286804199, "sibling_score": 0.6004214286804199, "answer_score": null, "sibling_qid": "KOL-2020-01-0379-Q002", "sibling_text": "purpose of ig in tanker", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Draw and explain the hydrocarbon flammability diagram. What is its purpose and functional requirement, why is the line tapered, and how do you mark a point on it?", "cross_family": false } ] }, { "qid": "KOC-2024-02-0294-Q008", "text": "Explain LPG IG dryer system", "family": "Cargo Ops - Tankers", "subtopic": "IG System", "tid": "KOC-2024-02-0294", "tray": "new", "candidates": [ { "answer_id": "LPG-LNG-006", "score": 0.5981422066688538, "sibling_score": 0.5981422066688538, "answer_score": null, "sibling_qid": "KOC-2022-12-0116-Q007", "sibling_text": "why dry ig used in lpg", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Nitrogen generator, dry IG, and padding on gas carriers", "cross_family": true }, { "answer_id": "TCM-374-005", "score": 0.5444316267967224, "sibling_score": 0.5444316267967224, "answer_score": 0.46200109720230104, "sibling_qid": "CHE-2026-03-0132-Q006", "sibling_text": "ig gas freeing operations why and when and why only through ig", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Gas-freeing a tanker after discharge or before dry dock (why through the IG system)", "cross_family": false }, { "answer_id": "COT-P02-01", "score": 0.5322235822677612, "sibling_score": 0.5322235822677612, "answer_score": null, "sibling_qid": "KOC-2024-11-0476-Q002", "sibling_text": "ig system ig safeties and trips pv valve and breaker setting explain deck seal", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Draw and explain the complete tanker inert-gas system from gas production to the cargo tanks, identifying the main plant, control and deck components.", "cross_family": false } ] }, { "qid": "KOC-2024-02-0296-Q004", "text": "Insulation type in cargo tanks", "family": "Cargo Ops - Gas Carriers", "subtopic": "Cargo Tank Construction", "tid": "KOC-2024-02-0296", "tray": "review", "candidates": [ { "answer_id": "GC-TANK-004", "score": 0.8157274127006531, "sibling_score": 0.8157274127006531, "answer_score": 0.5903673291206359, "sibling_qid": "CHE-2025-08-0046-Q004", "sibling_text": "cargo tank type material and insulation used", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Gas-carrier cargo tank construction: materials, insulation, fixing and tank safeties", "cross_family": false }, { "answer_id": "CABLE-INS-E-002", "score": 0.7410719394683838, "sibling_score": 0.7410719394683838, "answer_score": null, "sibling_qid": "KOL-2017-10-2155-Q001", "sibling_text": "type of insulation in tanker", "sibling_family": "", "via": "sibling", "answer_title": "Cable for hazardous areas, tanker pump rooms and deck", "cross_family": false }, { "answer_id": "GC-TANK-005", "score": 0.7247545123100281, "sibling_score": 0.7247545123100281, "answer_score": null, "sibling_qid": "KOC-2026-08-2155-Q013", "sibling_text": "lng tank insulation material", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "LNG Moss-type cargo tank: construction and advantages", "cross_family": false } ] }, { "qid": "KOC-2024-02-0296-Q007", "text": "What is purpose of mlc", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOC-2024-02-0296", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-006", "score": 0.49762535095214844, "sibling_score": 0.49762535095214844, "answer_score": null, "sibling_qid": "MUM-2026-07-3680-Q005", "sibling_text": "what is mlc certificate under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false }, { "answer_id": "CLC-CIV-B-003", "score": 0.46379223465919495, "sibling_score": 0.46379223465919495, "answer_score": null, "sibling_qid": "KOC-2025-03-0583-Q002", "sibling_text": "what is llmc and purpose", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "LLMC: purpose, scope and limitation of maritime claims", "cross_family": true }, { "answer_id": "MLC-WRH-B-007", "score": 0.452739953994751, "sibling_score": 0.452739953994751, "answer_score": null, "sibling_qid": "MUM-2026-01-0701-Q002", "sibling_text": "detainable deficiency of mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false } ] }, { "qid": "KOC-2024-02-0296-Q008", "text": "Dmlc 1 and dmlc 2", "family": "MLC", "subtopic": "MLC / DMLC / Work-Rest", "tid": "KOC-2024-02-0296", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.7763336896896362, "sibling_score": 0.7763336896896362, "answer_score": 0.28348535895347593, "sibling_qid": "MUM-2026-01-0673-Q004", "sibling_text": "dmlc 1 and dmlc 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "SB-RATIO-002", "score": 0.24974091500043868, "sibling_score": null, "answer_score": 0.24974091500043868, "sibling_qid": "", "sibling_text": "differentiate short long super long and ultra long stroke engines with the exact ratio of each what is s and what is l k short stroke k98mc c 980 2 400 2 45 k98mc 980 2 660 2 71 k80mc c 800 2 300 2 88 l long stroke l70mc 700 2 268 3 24 l80mc 800 2 592 3 24 l70mc c 700 2 360 3 37", "sibling_family": "", "via": "answer_title", "answer_title": "Differentiate short, long, super-long and ultra-long stroke engines, with the exact ratio of each. What is S and what is L?", "cross_family": false }, { "answer_id": "ENG-NOM-006", "score": 0.24551734030246733, "sibling_score": null, "answer_score": 0.24551734030246733, "sibling_qid": "", "sibling_text": "short form asks smc c lmc and me vs mc quickly smc c super long stroke man programme camshaft controlled compact lmc l long stroke the l is the stroke letter not a control or compact letter", "sibling_family": "", "via": "answer_title", "answer_title": "Short-form asks: SMC-C, LMC, and ME vs MC quickly", "cross_family": false } ] }, { "qid": "KOC-2024-02-0296-Q015", "text": "Name 3 equipments related to navigation on bridge", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "KOC-2024-02-0296", "tray": "new", "candidates": [ { "answer_id": "LT-SRC-004", "score": 0.5768083333969116, "sibling_score": 0.5768083333969116, "answer_score": null, "sibling_qid": "MUM-2026-09-3954-Q004", "sibling_text": "navigation lights", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "What navigation lights are carried, where, and how many?", "cross_family": false }, { "answer_id": "LSA-CODE-BF044-002", "score": 0.5522646307945251, "sibling_score": 0.5522646307945251, "answer_score": null, "sibling_qid": "KOL-2022-03-0612-Q005", "sibling_text": "safety equipment on bridge according to lsa", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What life-saving equipment does the LSA Code / SOLAS Chapter III require on or near the bridge?", "cross_family": true }, { "answer_id": "ANCH-CHN-A-006", "score": 0.5516840219497681, "sibling_score": 0.5516840219497681, "answer_score": null, "sibling_qid": "MUM-2026-03-2942-Q029", "sibling_text": "3 type anchor and chain on your ship", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Holding, securing the cable for sea, and general checks", "cross_family": true } ] }, { "qid": "KOC-2024-02-0296-Q016", "text": "Data received by vdr, what data received from engine room", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "KOC-2024-02-0296", "tray": "new", "candidates": [ { "answer_id": "DUS-P1-04", "score": 0.4519869089126587, "sibling_score": 0.4519869089126587, "answer_score": null, "sibling_qid": "KOC-2024-02-0298-Q009", "sibling_text": "drydock data given to dock as a 2nd engineer", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Documents, plans and certificates the 2E submits to the drydock", "cross_family": true }, { "answer_id": "CO2-SYS-005", "score": 0.4437623620033264, "sibling_score": 0.4437623620033264, "answer_score": null, "sibling_qid": "MUM-2026-03-2642-Q020", "sibling_text": "where it is done in engine room", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "CO2 system safeties, CO2-room requirements, alarms and ventilation", "cross_family": false }, { "answer_id": "ERM-BF053-001", "score": 0.428568959236145, "sibling_score": 0.428568959236145, "answer_score": null, "sibling_qid": "KOC-2023-08-0213-Q005", "sibling_text": "engine room resourse management", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is Engine Room Resource Management — explain it fully, with its parts and the STCW regulation and chapter it comes under?", "cross_family": true } ] }, { "qid": "KOC-2024-02-0296-Q017", "text": "Types of electrical hazardous zones and what type of equipment used in each", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOC-2024-02-0296", "tray": "new", "candidates": [ { "answer_id": "TNK-SAFE-BF26-003", "score": 0.6042628288269043, "sibling_score": 0.6042628288269043, "answer_score": 0.5048459768295288, "sibling_qid": "KOL-2026-01-1153-Q006", "sibling_text": "different type of zones in oil tanker in hazardous area example of equipments fitted in different zones", "sibling_family": "", "via": "sibling", "answer_title": "What safeties, including electrical safeties and Ex ratings, are provided on the deck of a tanker?", "cross_family": false }, { "answer_id": "CABLE-INS-E-002", "score": 0.5788567066192627, "sibling_score": 0.5788567066192627, "answer_score": null, "sibling_qid": "CHE-2026-02-0335-Q008", "sibling_text": "type of wire used in hazardous area", "sibling_family": "", "via": "sibling", "answer_title": "Cable for hazardous areas, tanker pump rooms and deck", "cross_family": false }, { "answer_id": "HV-SYS-P04-001", "score": 0.548621654510498, "sibling_score": 0.548621654510498, "answer_score": null, "sibling_qid": "MUM-2025-09-2844-Q002", "sibling_text": "high voltage safeties", "sibling_family": "", "via": "sibling", "answer_title": "HV-SYS-P04-001 - HV hazards, advantages and safeties", "cross_family": false } ] }, { "qid": "KOC-2024-02-0300-Q010", "text": "Weekly declaration in ORB- Code , items no", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "KOC-2024-02-0300", "tray": "review", "candidates": [ { "answer_id": "ORB-IOPP-OWS-004", "score": 0.6783835291862488, "sibling_score": 0.6783835291862488, "answer_score": 0.3382778614759445, "sibling_qid": "KOC-2026-02-0805-Q007", "sibling_text": "weekly entries of orb code item no bunker missed entry", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Weekly ORB entries — the mandatory sludge retention record, the bunker entry, and what is voluntary", "cross_family": false }, { "answer_id": "OWS-ORB-006", "score": 0.4690473675727844, "sibling_score": 0.4690473675727844, "answer_score": null, "sibling_qid": "CHE-2026-05-0634-Q009", "sibling_text": "orb all codes", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "6. Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": false }, { "answer_id": "EMG-DG-P04-003", "score": 0.4372013807296753, "sibling_score": 0.4372013807296753, "answer_score": null, "sibling_qid": "MUM-2017-01-1322-Q004", "sibling_text": "weekly checks on emergency dg", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Checks, rounds and scheduled maintenance", "cross_family": true } ] }, { "qid": "KOC-2024-02-0300-Q011", "text": "From where do you get tank capacities for ORB entrIes", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "KOC-2024-02-0300", "tray": "new", "candidates": [ { "answer_id": "OWS-ORB-006", "score": 0.5003785490989685, "sibling_score": 0.5003785490989685, "answer_score": null, "sibling_qid": "MUM-2025-09-0447-Q007", "sibling_text": "orb entries", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "6. Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-002", "score": 0.47861650586128235, "sibling_score": 0.47861650586128235, "answer_score": null, "sibling_qid": "CHE-2024-10-0509-Q002", "sibling_text": "orb entries all in detail", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "The Oil Record Book Part I — purpose, the letter codes, and how entries are made", "cross_family": false }, { "answer_id": "OILPOL-OWS-003", "score": 0.4766514301300049, "sibling_score": 0.4766514301300049, "answer_score": 0.38577807396650315, "sibling_qid": "KOC-2025-11-0725-Q001", "sibling_text": "sludge tank capacity calculation explain", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Sludge tank capacity — how is it calculated?", "cross_family": false } ] }, { "qid": "KOC-2024-02-0304-Q001", "text": "Electronic record book", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "KOC-2024-02-0304", "tray": "new", "candidates": [ { "answer_id": "AIRP-188-005", "score": 0.6478723883628845, "sibling_score": 0.6478723883628845, "answer_score": 0.41745553016662595, "sibling_qid": "KOL-2025-09-1092-Q002", "sibling_text": "ods record book what all entries", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "ODS Record Book and the IAPP equipment list — what and where?", "cross_family": true }, { "answer_id": "A6-NSEC-005", "score": 0.644208550453186, "sibling_score": 0.644208550453186, "answer_score": null, "sibling_qid": "KOC-2023-03-0171-Q006", "sibling_text": "nox technicle file documentation ods record book eca c o seemp eedi records", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP — Part I, II & III", "cross_family": true }, { "answer_id": "GRB-321-005", "score": 0.613233745098114, "sibling_score": 0.613233745098114, "answer_score": null, "sibling_qid": "NOI-2026-09-0020-Q003", "sibling_text": "garbage record book", "sibling_family": "MARPOL - Annex V (Garbage)", "via": "sibling", "answer_title": "Garbage Record Book — entries and recordable contents", "cross_family": true } ] }, { "qid": "KOC-2024-02-0304-Q002", "text": "reasons to detain ship based on MLC", "family": "MLC", "subtopic": "MLC / DMLC / Work-Rest", "tid": "KOC-2024-02-0304", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-007", "score": 0.5929712653160095, "sibling_score": 0.5929712653160095, "answer_score": 0.4368721336126327, "sibling_qid": "KOC-2024-01-0283-Q004", "sibling_text": "mlc detainable deficiencies", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false }, { "answer_id": "MLC-WRH-B-009", "score": 0.5845974683761597, "sibling_score": 0.5845974683761597, "answer_score": null, "sibling_qid": "CHE-2025-08-0426-Q009", "sibling_text": "ship owner abandoned the ship what will you do as per mlc i told financial security certificate for repartation", "sibling_family": "MLC", "via": "sibling", "answer_title": "Abandonment — financial security and repatriation", "cross_family": false }, { "answer_id": "CLC-CIV-B-003", "score": 0.5625931620597839, "sibling_score": 0.5625931620597839, "answer_score": null, "sibling_qid": "MUM-2026-04-0880-Q004", "sibling_text": "mlc what is shipowner liability", "sibling_family": "MLC", "via": "sibling", "answer_title": "LLMC: purpose, scope and limitation of maritime claims", "cross_family": false } ] }, { "qid": "KOC-2024-02-0305-Q006", "text": "Tankscope and explosivemeter. Working and difference", "family": "Gas Detection & Instruments", "subtopic": "Explosimeter / Gas Detector", "tid": "KOC-2024-02-0305", "tray": "review", "candidates": [ { "answer_id": "GAS-DET-006", "score": 0.7934463620185852, "sibling_score": 0.7934463620185852, "answer_score": 0.6085300505161285, "sibling_qid": "KOC-2026-09-2199-Q002", "sibling_text": "explosimeter and tank scope difference", "sibling_family": "Gas Detection & Instruments", "via": "sibling", "answer_title": "Tankscope vs explosimeter: construction, working, where to use, gases", "cross_family": false }, { "answer_id": "GAS-DET-008", "score": 0.664679229259491, "sibling_score": 0.664679229259491, "answer_score": 0.48535525202751156, "sibling_qid": "KOC-2026-09-2176-Q003", "sibling_text": "explosimeter working", "sibling_family": "Gas Detection & Instruments", "via": "sibling", "answer_title": "Explosimeter: construction, working, calibration, gases detected", "cross_family": false }, { "answer_id": "GAS-DET-005", "score": 0.548058271408081, "sibling_score": null, "answer_score": 0.548058271408081, "sibling_qid": "", "sibling_text": "tankscope purpose working when to use gases measured in the traditional tankscope role reads hydrocarbon cargo vapour as by volume for inerting gassing up and purging exact gas basis range and any extra channels are maker model specific some modern variants use ir principle non catalytic heated filament thermal conductivity katharometer the gas does not burn wheatstone bridge compensator filament", "sibling_family": "", "via": "answer_title", "answer_title": "Tankscope: purpose, working, when to use, gases measured", "cross_family": false } ] }, { "qid": "KOC-2024-02-0305-Q007", "text": "Ships Aft end figure", "family": "Ship Construction & Stability", "subtopic": "Stern Frame / Transom", "tid": "KOC-2024-02-0305", "tray": "new", "candidates": [ { "answer_id": "DUS-P5-03", "score": 0.6032806634902954, "sibling_score": 0.6032806634902954, "answer_score": null, "sibling_qid": "KOC-2024-12-2058-Q002", "sibling_text": "draw aft portion of the ship without propeller and rudder in it show the rudder axis which pass through the structure", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Stern frame construction, cross-section and rudder-axis sketch", "cross_family": true }, { "answer_id": "CLASS-NOT-001", "score": 0.5975329875946045, "sibling_score": 0.5975329875946045, "answer_score": null, "sibling_qid": "MUM-2026-06-3644-Q002", "sibling_text": "draw notation of last ship", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is class notation, and how would you explain the notation written for your ship?", "cross_family": true }, { "answer_id": "PPS-230-006", "score": 0.5903046727180481, "sibling_score": 0.5903046727180481, "answer_score": null, "sibling_qid": "CHE-2026-09-3914-Q002", "sibling_text": "forward ship constructional arrangements", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Fore-end / fore-peak structure: draw and describe", "cross_family": false } ] }, { "qid": "KOC-2024-02-0306-Q003", "text": "Pyrophoric ignition?", "family": "MARPOL - Annex I (Oil)", "subtopic": "COW / Crude Oil Wash", "tid": "KOC-2024-02-0306", "tray": "review", "candidates": [ { "answer_id": "TNK-SAFE-BF26-006", "score": 0.7079832553863525, "sibling_score": 0.7079832553863525, "answer_score": 0.4563735485076904, "sibling_qid": "KOC-2025-11-0732-Q005", "sibling_text": "pyrophoric reaction", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What are the sources of ignition on an oil tanker?", "cross_family": true }, { "answer_id": "IMSBC-BULK-001", "score": 0.6725249290466309, "sibling_score": 0.6725249290466309, "answer_score": null, "sibling_qid": "KOL-2021-04-0490-Q002", "sibling_text": "spontaneous ignition", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Coal: spontaneous combustion, self-heating and methane", "cross_family": true }, { "answer_id": "CONT-FIRE-FINAL-1-006", "score": 0.448086142539978, "sibling_score": null, "answer_score": 0.448086142539978, "sibling_qid": "", "sibling_text": "colour hazard marking on a dangerous goods container declared reading imdg hazard class placards the terse source question is interpreted not invented yellow diamond class 5 1 oxidising substances flame over circle feeds intensifies fire keep from combustibles", "sibling_family": "", "via": "answer_title", "answer_title": "Colour / hazard marking on a dangerous-goods container", "cross_family": false } ] }, { "qid": "KOC-2024-02-0989-Q006", "text": "priming in boiler how it happened and precautions to reduce", "family": "Pumps - Centrifugal & PD", "subtopic": "Pump Priming / Suction", "tid": "KOC-2024-02-0989", "tray": "new", "candidates": [ { "answer_id": "PCD-P03-05", "score": 0.5280345678329468, "sibling_score": 0.5280345678329468, "answer_score": null, "sibling_qid": "KOL-2021-12-1648-Q006", "sibling_text": "vapour lock in boiler feed pump how it happens", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Cavitation — definition, where, factors, identification and control", "cross_family": false }, { "answer_id": "BBF-621-001", "score": 0.5250853300094604, "sibling_score": 0.5250853300094604, "answer_score": null, "sibling_qid": "KOL-2024-06-3692-Q001", "sibling_text": "what is back fire in boiler what are the reasons how you prevent back fire how you start boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "What is boiler backfire / blowback? Explain the furnace event, the reasons, and how you prevent it.", "cross_family": true }, { "answer_id": "HYD-602-002", "score": 0.5054469704627991, "sibling_score": 0.5054469704627991, "answer_score": null, "sibling_qid": "KOL-2021-12-3503-Q002", "sibling_text": "boiler hydrostatic pressure when done how done precautions", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Why is the hydrostatic test carried out, when is it done, and what does it prove?", "cross_family": true } ] }, { "qid": "KOC-2024-02-0990-Q005", "text": "Types of rudder", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOC-2024-02-0990", "tray": "review", "candidates": [ { "answer_id": "SPR-STERN-006", "score": 0.7230468392372131, "sibling_score": 0.7230468392372131, "answer_score": null, "sibling_qid": "MUM-2026-09-3951-Q002", "sibling_text": "types of rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Propeller types & special propulsors", "cross_family": false }, { "answer_id": "STEER-055-A-003", "score": 0.6118848919868469, "sibling_score": 0.6118848919868469, "answer_score": null, "sibling_qid": "KOL-2023-08-1751-Q006", "sibling_text": "hunting gear mechanism hunting of rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Hunting gear, floating lever and buffer spring", "cross_family": false }, { "answer_id": "TRS-002", "score": 0.6093253493309021, "sibling_score": 0.6093253493309021, "answer_score": 0.4312824308872223, "sibling_qid": "KOC-2026-02-1103-Q008", "sibling_text": "how rudder stock and carrier bearing is attached told 2 half fitted bolts x does bearing turn with rudder i told yes then he told that there are 2 types one turn with rudder other dont turn with rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false } ] }, { "qid": "KOC-2024-02-0990-Q008", "text": "Rudder carrier bearing explain", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOC-2024-02-0990", "tray": "review", "candidates": [ { "answer_id": "TRS-002", "score": 0.7532786726951599, "sibling_score": 0.7532786726951599, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "PRE-TEN-001", "score": 0.7259761691093445, "sibling_score": 0.7259761691093445, "answer_score": null, "sibling_qid": "MUM-2026-06-3504-Q007", "sibling_text": "rudder carrier bearing removal procedure", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Pre-stressing and pre-tensioning in main-engine bolting", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.7169106006622314, "sibling_score": 0.7169106006622314, "answer_score": 0.4799380600452423, "sibling_qid": "CHE-2026-02-0110-Q006", "sibling_text": "how rudder weight is carried key ans i said carrier bearing how it carrying explain", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false } ] }, { "qid": "KOC-2024-02-1328-Q005", "text": "DC generator paralleling Conditions", "family": "Electrical - Generator & Alternator", "subtopic": "Synchronization", "tid": "KOC-2024-02-1328", "tray": "review", "candidates": [ { "answer_id": "SYNC-C-001", "score": 0.7672271728515625, "sibling_score": 0.7672271728515625, "answer_score": 0.5659243047237396, "sibling_qid": "KOC-2023-04-1255-Q003", "sibling_text": "gen paralleling conditions of ac and dc", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Paralleling generators — procedure, conditions and practical checks", "cross_family": false }, { "answer_id": "SYNC-C-002", "score": 0.7010713219642639, "sibling_score": 0.7010713219642639, "answer_score": null, "sibling_qid": "CHE-2025-11-0311-Q002", "sibling_text": "paralleling on generator without synchroscope and without light arrangement", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Synchronising without a synchroscope — lamp, voltmeter and alternative methods", "cross_family": false }, { "answer_id": "SYNC-D-001", "score": 0.6993759274482727, "sibling_score": 0.6993759274482727, "answer_score": null, "sibling_qid": "KOC-2025-08-1565-Q005", "sibling_text": "generator parallel when not in phase", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Closing the breaker out of phase — wrong-synchronizing consequences", "cross_family": false } ] }, { "qid": "KOC-2024-02-1328-Q011", "text": "What is short circuit and short circuit level ( asked by new surveyor) Internal - no questions", "family": "Electrical - Protection & Relays", "subtopic": "Protection / Relays", "tid": "KOC-2024-02-1328", "tray": "new", "candidates": [ { "answer_id": "OC-UV-TRIP-007", "score": 0.5748603940010071, "sibling_score": 0.5748603940010071, "answer_score": null, "sibling_qid": "KOC-2026-03-1726-Q003", "sibling_text": "what arrrangement there for short circuit", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "General overcurrent / undervoltage trips — alarms, values and failure effects", "cross_family": false }, { "answer_id": "OCR-185-001", "score": 0.5575817823410034, "sibling_score": 0.5575817823410034, "answer_score": null, "sibling_qid": "KOL-2020-11-2411-Q003", "sibling_text": "overcurrent relay testing method and short circuit trip as i answered then he asked about short ckt trip", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Testing an overcurrent relay / overcurrent trip onboard", "cross_family": false }, { "answer_id": "OCR-185-006", "score": 0.5571733117103577, "sibling_score": 0.5571733117103577, "answer_score": null, "sibling_qid": "MUM-2025-12-1831-Q001", "sibling_text": "ae run if short circuit trip not working what will happen", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "If short-circuit protection fails to operate; how it is checked", "cross_family": false } ] }, { "qid": "KOC-2024-02-1329-Q002", "text": "3point starter and explain", "family": "Electrical - Motors & Starters", "subtopic": "DC Motor Three-Point Starter", "tid": "KOC-2024-02-1329", "tray": "review", "candidates": [ { "answer_id": "STR-DEC-A-001", "score": 0.7049798369407654, "sibling_score": 0.7049798369407654, "answer_score": null, "sibling_qid": "KOC-2026-03-1723-Q004", "sibling_text": "3point starter explain", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "STARTER-DEC-B-003", "score": 0.6575362086296082, "sibling_score": 0.6575362086296082, "answer_score": null, "sibling_qid": "KOC-2023-04-1255-Q006", "sibling_text": "dol starter 3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "DOL starter — use, current, range and limits", "cross_family": false }, { "answer_id": "SDST-A-001", "score": 0.5176863074302673, "sibling_score": 0.5176863074302673, "answer_score": 0.30857044756412505, "sibling_qid": "KOC-2026-02-1701-Q005", "sibling_text": "three point starter diagram with explanation", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false } ] }, { "qid": "KOC-2024-02-1331-Q001", "text": "Service factor(he wants text book definition). who assigns SF for a motor ?", "family": "Electrical - Motors & Starters", "subtopic": "Motor Specification / Ordering", "tid": "KOC-2024-02-1331", "tray": "new", "candidates": [ { "answer_id": "BOW-THR-003", "score": 0.5555141568183899, "sibling_score": 0.5555141568183899, "answer_score": null, "sibling_qid": "CHE-2026-02-0341-Q008", "sibling_text": "rating of the motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Bow-thruster motor — type, supply voltage, starter, connection and VFD control", "cross_family": false }, { "answer_id": "IMSP-007", "score": 0.5370364785194397, "sibling_score": 0.5370364785194397, "answer_score": null, "sibling_qid": "MUM-2026-01-1847-Q007", "sibling_text": "what is factor of safety in motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What safeties and protections are provided in an induction motor and its starter — overload, short-circuit, thermal? What about a motor on deck, and large three-phase motors?", "cross_family": false }, { "answer_id": "IRT-C-012", "score": 0.5291998386383057, "sibling_score": 0.5291998386383057, "answer_score": null, "sibling_qid": "KOC-2025-07-1544-Q004", "sibling_text": "s w ingress motor maintenance", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Seawater-soaked / flooded motor — overhaul & restore IR", "cross_family": false } ] }, { "qid": "KOC-2024-02-1331-Q002", "text": "Frame no", "family": "Electrical - Motors & Starters", "subtopic": "Frame Number", "tid": "KOC-2024-02-1331", "tray": "review", "candidates": [ { "answer_id": "ELECTRICAL-M-A-01", "score": 0.7896750569343567, "sibling_score": 0.7896750569343567, "answer_score": 0.4439132571220398, "sibling_qid": "MUM-2026-03-1997-Q004", "sibling_text": "frame number", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Motor Frame Number", "cross_family": false }, { "answer_id": "KGF-A-002", "score": 0.738861083984375, "sibling_score": 0.738861083984375, "answer_score": 0.548162841796875, "sibling_qid": "KOC-2026-08-2115-Q010", "sibling_text": "frame number", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Frame numbering, spacing & identification", "cross_family": true }, { "answer_id": "SHELL-PLT-A-001", "score": 0.6111545562744141, "sibling_score": 0.6111545562744141, "answer_score": null, "sibling_qid": "KOC-2024-08-0392-Q013", "sibling_text": "frame numbering shell expansion plan", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "The shell expansion plan, and how you identify a plate", "cross_family": true } ] }, { "qid": "KOC-2024-02-1331-Q009", "text": "Int : how to order motor a sw pump and the specification values. Frame no?", "family": "Electrical - Motors & Starters", "subtopic": "Frame Number", "tid": "KOC-2024-02-1331", "tray": "review", "candidates": [ { "answer_id": "BRG-NOM-001", "score": 0.7062972187995911, "sibling_score": 0.7062972187995911, "answer_score": null, "sibling_qid": "MUM-2026-09-3980-Q011", "sibling_text": "specification of motor to order", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Bearing Numbers, Suffixes and What to State When Ordering", "cross_family": false }, { "answer_id": "IP-ENCL-001", "score": 0.6991156935691833, "sibling_score": 0.6991156935691833, "answer_score": null, "sibling_qid": "KOC-2025-02-1497-Q002", "sibling_text": "how to order a s w pump motor asked about ip rating", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "IP rating of motors — what the numbers mean", "cross_family": false }, { "answer_id": "IP-ENCL-002", "score": 0.6938039660453796, "sibling_score": 0.6938039660453796, "answer_score": null, "sibling_qid": "KOC-2025-12-1658-Q005", "sibling_text": "how to order main sea water pump motor and ip and class", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Suitable IP rating by location — ER, deck, pump, generator", "cross_family": false } ] }, { "qid": "KOC-2024-02-1831-Q001", "text": "4 stroke piston diag", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE Conrod / Piston", "tid": "KOC-2024-02-1831", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-001", "score": 0.6825287342071533, "sibling_score": 0.6825287342071533, "answer_score": null, "sibling_qid": "KOL-2021-12-1648-Q009", "sibling_text": "4stroke piston overhaul and pressure test", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE piston overhaul — removal, ring handling and refit", "cross_family": false }, { "answer_id": "AE-CRP-003", "score": 0.679326593875885, "sibling_score": 0.679326593875885, "answer_score": null, "sibling_qid": "KOC-2024-09-1008-Q002", "sibling_text": "4 stroke piston cross section", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE piston, ring and groove checks; piston material", "cross_family": false }, { "answer_id": "AEDEC-291-006", "score": 0.6735348105430603, "sibling_score": 0.6735348105430603, "answer_score": 0.5129911690950394, "sibling_qid": "MUM-2026-04-2669-Q002", "sibling_text": "3e doing decarb checks on piston", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "6. Clearances, measurements, piston checks, ovality", "cross_family": false } ] }, { "qid": "KOC-2024-02-1831-Q007", "text": "Liner removal procedure", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "KOC-2024-02-1831", "tray": "review", "candidates": [ { "answer_id": "CYL-LINER-P03-008", "score": 0.7556787133216858, "sibling_score": 0.7556787133216858, "answer_score": 0.399216128885746, "sibling_qid": "KOL-2017-03-3045-Q004", "sibling_text": "liner removal procedure", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Main-engine cylinder liner removal — full procedure, the lifting tool, and precautions", "cross_family": false }, { "answer_id": "CYL-LINER-P02-002", "score": 0.6576871275901794, "sibling_score": 0.6576871275901794, "answer_score": null, "sibling_qid": "MUM-2026-05-3238-Q009", "sibling_text": "liner seized how to remove", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L2 · T044-PART_02-G002High", "cross_family": false }, { "answer_id": "CYL-LINER-P03-003", "score": 0.6570081114768982, "sibling_score": 0.6570081114768982, "answer_score": 0.3871141329407692, "sibling_qid": "MUM-2026-07-3848-Q001", "sibling_text": "liner seized how to remove", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Removing a stuck cylinder liner — how, and where do you jack?", "cross_family": false } ] }, { "qid": "KOC-2024-02-1832-Q002", "text": "Rudder and rudder carrier bearing. How is rudder carrier fitted to the stock? Types of rudder? What is spade type of rudder", "family": "Steering Gear & Hydraulics", "subtopic": "Tiller / Rudder Stock", "tid": "KOC-2024-02-1832", "tray": "review", "candidates": [ { "answer_id": "TRS-002", "score": 0.6956242918968201, "sibling_score": 0.6956242918968201, "answer_score": 0.4604021430015564, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "PRE-TEN-001", "score": 0.6314945816993713, "sibling_score": 0.6314945816993713, "answer_score": null, "sibling_qid": "MUM-2026-06-3504-Q007", "sibling_text": "rudder carrier bearing removal procedure", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Pre-stressing and pre-tensioning in main-engine bolting", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.6264582872390747, "sibling_score": 0.6264582872390747, "answer_score": null, "sibling_qid": "CHE-2026-02-0110-Q006", "sibling_text": "how rudder weight is carried key ans i said carrier bearing how it carrying explain", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false } ] }, { "qid": "KOC-2024-02-1833-Q006", "text": "Safety valve adjustment in front of surveyor boiler survey Internal : no questions", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2024-02-1833", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P01-001", "score": 0.8593712449073792, "sibling_score": 0.8593712449073792, "answer_score": null, "sibling_qid": "KOC-2026-08-2122-Q005", "sibling_text": "boiler safety valve setting in front of surveyor", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.7737864851951599, "sibling_score": 0.7737864851951599, "answer_score": null, "sibling_qid": "CHE-2026-04-0500-Q005", "sibling_text": "boiler safety valve setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.7669644355773926, "sibling_score": 0.7669644355773926, "answer_score": null, "sibling_qid": "KOL-2021-08-1614-Q006", "sibling_text": "boiler survey interval types of safety valves improved high lift safety valve in detail", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOC-2024-02-1834-Q005", "text": "Boiler safety valve setting infront of surveyor? Draw top portion of valve? Where compression ring is secured/threaded to?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2024-02-1834", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P01-001", "score": 0.8094863295555115, "sibling_score": 0.8094863295555115, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q011", "sibling_text": "boiler safety valve setting in front of surveyor", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.7633052468299866, "sibling_score": 0.7633052468299866, "answer_score": null, "sibling_qid": "CHE-2026-05-0597-Q020", "sibling_text": "boiler safety valve how the setting is done", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "ECON-EGB-004", "score": 0.5813408881425858, "sibling_score": null, "answer_score": 0.5813408881425858, "sibling_qid": "", "sibling_text": "safety valve setting after overhaul why set higher than the boiler setting raise pressure under steam on a calibrated gauge adjust spring compression to lift at the approved set pressure verify re seat and blowdown two valves one at a time the other gagged lock and seal surveyor witnessed values are class approved ship specific set pressure accumulation representative limit and blowdown quote the ", "sibling_family": "", "via": "answer_title", "answer_title": "Safety-valve setting after overhaul & why set higher than the boiler", "cross_family": false } ] }, { "qid": "KOC-2024-02-1835-Q006", "text": "Safety valve setting explain in detail. 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Subdivision load line, margin line and probabilistic subdivision", "cross_family": false } ] }, { "qid": "KOC-2024-03-0312-Q012", "text": "Strait limit", "family": "Other Conventions", "subtopic": "UNCLOS", "tid": "KOC-2024-03-0312", "tray": "new", "candidates": [ { "answer_id": "CLC-CIV-A-001", "score": 0.4880472421646118, "sibling_score": 0.4880472421646118, "answer_score": null, "sibling_qid": "KOC-2024-08-0382-Q009", "sibling_text": "clc nd limts and few cross", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "CLC Convention — objective, scope and shipowner liability", "cross_family": false }, { "answer_id": "EEZ-PSSA-004", "score": 0.4693392217159271, "sibling_score": 0.4693392217159271, "answer_score": null, "sibling_qid": "KOL-2023-07-0759-Q004", "sibling_text": "indian coastal zones and limits not general limits", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Indian maritime zones — territorial sea, contiguous zone, EEZ", "cross_family": false }, { "answer_id": "CLC-CIV-B-003", "score": 0.4660625457763672, "sibling_score": 0.4660625457763672, "answer_score": null, "sibling_qid": "KOL-2025-06-0955-Q006", "sibling_text": "limitation clause", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "LLMC: purpose, scope and limitation of maritime claims", "cross_family": false } ] }, { "qid": "KOC-2024-03-0313-Q001", "text": "Primary bilge tank draw and explain", "family": "MARPOL - Annex I (Oil)", "subtopic": "Primary Bilge Tank", "tid": "KOC-2024-03-0313", "tray": "new", "candidates": [ { "answer_id": "BK-001", "score": 0.6046935319900513, "sibling_score": 0.6046935319900513, "answer_score": null, "sibling_qid": "KOC-2026-05-0039-Q006", "sibling_text": "draw bilge keel it s purpose", "sibling_family": "", "via": "sibling", "answer_title": "What is a bilge keel and what is its purpose?", "cross_family": false }, { "answer_id": "OWS-15PPM-005", "score": 0.5948061347007751, "sibling_score": 0.5948061347007751, "answer_score": null, "sibling_qid": "MUM-2025-05-2295-Q011", "sibling_text": "aft bilge is lined up for ows and after hours of running you find no change in level reason", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "PCD-P04-05", "score": 0.594238817691803, "sibling_score": 0.594238817691803, "answer_score": null, "sibling_qid": "KOC-2026-09-2165-Q007", "sibling_text": "bucket type bilge pump drawing", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "05. Reciprocating pump — construction, working and how you know it is discharging", "cross_family": true } ] }, { "qid": "KOC-2024-03-0313-Q002", "text": "ANNEX 4 explain", "family": "MARPOL - Annex IV (Sewage)", "subtopic": "STP / Sewage Treatment", "tid": "KOC-2024-03-0313", "tray": "new", "candidates": [ { "answer_id": "STP-SEW-001", "score": 0.6023810505867004, "sibling_score": 0.6023810505867004, "answer_score": null, "sibling_qid": "MUM-2025-01-2787-Q005", "sibling_text": "annex 4 complete", "sibling_family": "MARPOL - Annex IV (Sewage)", "via": "sibling", "answer_title": "MARPOL Annex IV — scope, applicability and certification", "cross_family": false }, { "answer_id": "SEW-DISCH-004", "score": 0.5750805735588074, "sibling_score": 0.5750805735588074, "answer_score": null, "sibling_qid": "CHE-2025-08-0048-Q004", "sibling_text": "documents in annex 4", "sibling_family": "MARPOL - Annex IV (Sewage)", "via": "sibling", "answer_title": "4. Annex IV requirements, equipment, documents and recent amendments", "cross_family": false }, { "answer_id": "EECS-012", "score": 0.5505245923995972, "sibling_score": 0.5505245923995972, "answer_score": 0.35038477182388306, "sibling_qid": "MUM-2022-07-0012-Q002", "sibling_text": "have you heard about ch 4 annex 6 explain", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "12. Annex VI Chapter 4 contents — and what the Second Engineer checks under it", "cross_family": true } ] }, { "qid": "KOC-2024-03-0316-Q002", "text": "Rudder carrier bearing", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOC-2024-03-0316", "tray": "review", "candidates": [ { "answer_id": "TRS-002", "score": 0.7673678994178772, "sibling_score": 0.7673678994178772, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "PRE-TEN-001", "score": 0.7641673684120178, "sibling_score": 0.7641673684120178, "answer_score": null, "sibling_qid": "MUM-2026-06-3504-Q007", "sibling_text": "rudder carrier bearing removal procedure", 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What actions or responsibilities cannot be assigned to an RO by the flag State?", "cross_family": false }, { "answer_id": "IACS-324-004", "score": 0.528685986995697, "sibling_score": 0.528685986995697, "answer_score": 0.31892129480838777, "sibling_qid": "KOC-2024-03-0325-Q007", "sibling_text": "ro duties", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "4. What are the duties or RO Code responsibilities of a Recognized Organization?", "cross_family": false } ] }, { "qid": "KOC-2024-03-0324-Q009", "text": "MLC titles", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOC-2024-03-0324", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.6392328143119812, "sibling_score": 0.6392328143119812, "answer_score": 0.2686029255390167, "sibling_qid": "KOC-2026-05-2135-Q011", "sibling_text": "mlc titles explain title 1 explain dmlc part 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "MLC-WRH-B-006", "score": 0.5393727421760559, "sibling_score": 0.5393727421760559, "answer_score": null, "sibling_qid": "MUM-2026-06-3645-Q001", "sibling_text": "certificates of mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false }, { "answer_id": "ISMNC-002", "score": 0.4681524932384491, "sibling_score": 0.4681524932384491, "answer_score": null, "sibling_qid": "MUM-2026-01-0685-Q005", "sibling_text": "mlc mnc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a major non-conformity under the ISM Code? Give the definition and name some.", "cross_family": true } ] }, { "qid": "KOC-2024-03-0325-Q002", "text": "MLC, seafarers benefits", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOC-2024-03-0325", "tray": "new", "candidates": [ { "answer_id": "CLC-CIV-B-003", "score": 0.5279271006584167, "sibling_score": 0.5279271006584167, "answer_score": 0.3679521158337593, "sibling_qid": "MUM-2026-04-0880-Q004", "sibling_text": "mlc what is shipowner liability", "sibling_family": "MLC", "via": "sibling", "answer_title": "LLMC: purpose, scope and limitation of maritime claims", "cross_family": false }, { "answer_id": "MLC-WRH-B-009", "score": 0.489337682723999, "sibling_score": 0.489337682723999, "answer_score": null, "sibling_qid": "CHE-2025-08-0426-Q009", "sibling_text": "ship owner abandoned the ship what will you do as per mlc i told financial security certificate for repartation", "sibling_family": "MLC", "via": "sibling", "answer_title": "Abandonment — financial security and repatriation", "cross_family": false }, { "answer_id": "MLC-WRH-B-004", "score": 0.4808705449104309, "sibling_score": 0.4808705449104309, "answer_score": null, "sibling_qid": "KOC-2022-01-0051-Q006", "sibling_text": "young seafarer as 2e what to ensure explained him about the mlc work and rest hours and also the night work criteria as second eng will not allow young seafarer to do critical jobs alone", "sibling_family": "MLC", "via": "sibling", "answer_title": "Young seafarers — minimum age, night work, and what the 2/E must ensure", "cross_family": false } ] }, { "qid": "KOC-2024-03-0325-Q009", "text": "Condition of class", "family": "Surveys - Statutory", "subtopic": "Condition of Class", "tid": "KOC-2024-03-0325", "tray": "review", "candidates": [ { "answer_id": "COC-001", "score": 0.8524287343025208, "sibling_score": 0.8524287343025208, "answer_score": 0.38411941230297086, "sibling_qid": "KOC-2026-04-0899-Q005", "sibling_text": "condition of class", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is a Condition of Class? Give examples, say where it is found, how much time is given to rectify it, and what happens if it is not met in time.", "cross_family": false }, { "answer_id": "COC-002", "score": 0.8072530627250671, "sibling_score": 0.8072530627250671, "answer_score": 0.40595301538705825, "sibling_qid": "KOL-2016-12-0036-Q002", "sibling_text": "condition of class condition assessignment", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the difference between a Condition of Class and a Condition of Assignment?", "cross_family": false }, { "answer_id": "IACS-324-003", "score": 0.7037556767463684, "sibling_score": 0.7037556767463684, "answer_score": null, "sibling_qid": "KOC-2024-03-0321-Q011", "sibling_text": "how class can become ro explain conditions", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "3. What is a Recognized Organization, how is it recognized by a flag State, and how can a classification society become one?", "cross_family": false } ] }, { "qid": "KOC-2024-03-0326-Q003", "text": "Bulbous bow construction draw and explain", "family": "", "subtopic": "Bulbous Bow", "tid": "KOC-2024-03-0326", "tray": "new", "candidates": [ { "answer_id": "PPS-230-006", "score": 0.5464403629302979, "sibling_score": 0.5464403629302979, "answer_score": 0.39490966796875, "sibling_qid": "MUM-2026-02-0782-Q011", "sibling_text": "bulbous bow how it is connected to ship shape of bow", "sibling_family": "", "via": "sibling", "answer_title": "Fore-end / fore-peak structure: draw and describe", "cross_family": false }, { "answer_id": "FWFB-P02-005", "score": 0.47232585251331327, "sibling_score": null, "answer_score": 0.47232585251331327, "sibling_qid": "", "sibling_text": "other members breast hook bulb angle cross tie margin coffin shoe plates breast hook horizontal triangular plate bracket at the bow and aft tying the two sides across the centreline at the stem helps resist panting forward bulb angle bulb flat stiffener a flat bar with a rounded bulb on one edge for added stiffness without a separate flange shell deck and bulkhead stiffening", "sibling_family": "", "via": "answer_title", "answer_title": "Other members: breast hook, bulb angle, cross tie, margin / coffin / shoe plates", "cross_family": false }, { "answer_id": "BSBH-420-002", "score": 0.4632581204175949, "sibling_score": 0.4453706741333008, "answer_score": 0.4632581204175949, "sibling_qid": "KOC-2024-10-0421-Q001", "sibling_text": "draw cross section view fwd of collision bulkhead", "sibling_family": "", "via": "answer_title", "answer_title": "Fore-end / forepeak construction forward of the collision bulkhead — members and cross-section", "cross_family": false } ] }, { "qid": "KOC-2024-03-0326-Q010", "text": "3 pont starter draw and explain", "family": "Electrical - 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Reasons, checks and action?", "cross_family": true }, { "answer_id": "FFF-A-003", "score": 0.48431482911109924, "sibling_score": 0.48431482911109924, "answer_score": null, "sibling_qid": "CHE-2026-05-0535-Q004", "sibling_text": "fittings in the fire main line how many isolation valves are there", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fire main, hydrants, isolating and deck valves, and fire-line fittings", "cross_family": true }, { "answer_id": "PCD-P04-01", "score": 0.4816911518573761, "sibling_score": 0.4816911518573761, "answer_score": null, "sibling_qid": "MUM-2026-05-3199-Q009", "sibling_text": "how many valves in valve chest", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "01. Bilge pump — type, why not centrifugal, and the suction valve chest", "cross_family": true } ] }, { "qid": "KOC-2024-03-0991-Q007", "text": "What happens when shell temp increase/ decrease", "family": "Refrigeration & AC", "subtopic": "Refer Cycle", "tid": "KOC-2024-03-0991", "tray": "new", "candidates": [ { "answer_id": "JCW-SYS-003", "score": 0.5487709641456604, "sibling_score": 0.5487709641456604, "answer_score": null, "sibling_qid": "MUM-2026-06-3420-Q007", "sibling_text": "me sea water cooled temp starting to rise your actions", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "ME jacket-water temperature is rising on all units and will not hold setpoint - reasons, your actions as 2/E, and telling which side of the cooler is leaking", "cross_family": true }, { "answer_id": "REFR-FLT-001", "score": 0.49617308378219604, "sibling_score": 0.49617308378219604, "answer_score": null, "sibling_qid": "KOL-2024-01-3668-Q002", "sibling_text": "fish room temp not coming down reasons", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Provision/cold room temperature: will not pull down, runs too low, or will not hold", "cross_family": false }, { "answer_id": "CTMP-575-001", "score": 0.4921968877315521, "sibling_score": 0.4921968877315521, "answer_score": null, "sibling_qid": "CHE-2021-07-0388-Q003", "sibling_text": "critical temp", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "What is the critical temperature of a refrigerant, and why is it important in refrigeration?", "cross_family": false } ] }, { "qid": "KOC-2024-03-1336-Q004", "text": "How DC generator paralleling is done", "family": "Electrical - 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Generator & Alternator", "via": "sibling", "answer_title": "Closing the breaker out of phase — wrong-synchronizing consequences", "cross_family": false } ] }, { "qid": "KOC-2024-03-1340-Q001", "text": "3 point starter drawing and explanation", "family": "Electrical - Motors & Starters", "subtopic": "DC Motor Three-Point Starter", "tid": "KOC-2024-03-1340", "tray": "review", "candidates": [ { "answer_id": "STR-DEC-A-001", "score": 0.693310558795929, "sibling_score": 0.693310558795929, "answer_score": null, "sibling_qid": "KOC-2026-05-2133-Q010", "sibling_text": "draw and explain 3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "SDST-A-001", "score": 0.6200223565101624, "sibling_score": 0.6200223565101624, "answer_score": 0.3888028129935264, "sibling_qid": "KOC-2026-02-1701-Q005", "sibling_text": "three point starter diagram with explanation", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false }, { "answer_id": "STARTER-DEC-B-003", "score": 0.5944672226905823, "sibling_score": 0.5944672226905823, "answer_score": null, "sibling_qid": "KOC-2023-04-1255-Q006", "sibling_text": "dol starter 3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "DOL starter — use, current, range and limits", "cross_family": false } ] }, { "qid": "KOC-2024-03-1340-Q010", "text": "Provision motor slipping (Only electrical reasons not accepting electromagnetic brake related) Internal", "family": "Electrical - Motors & Starters", "subtopic": "Windlass / Crane Motor", "tid": "KOC-2024-03-1340", "tray": "review", "candidates": [ { "answer_id": "CRANE-EMBRK-003", "score": 0.7835273742675781, "sibling_score": 0.7835273742675781, "answer_score": 0.5754484176635742, "sibling_qid": "KOC-2024-05-1352-Q006", "sibling_text": "electrical reason for electromagnetic brake slipping", "sibling_family": "Electrical - 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Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOC-2024-04-0328-Q004", "text": "Type of ship (oil/chem)", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2024-04-0328", "tray": "review", "candidates": [ { "answer_id": "CPFE-583-002", "score": 0.7354058623313904, "sibling_score": 0.7354058623313904, "answer_score": null, "sibling_qid": "MUM-2026-06-3604-Q002", "sibling_text": "type of ship chemical product", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Why a submerged hydraulic pump on a product or chemical tanker — and what makes a cargo pump different", "cross_family": false }, { "answer_id": "IBC-BCH-B-004", "score": 0.7308330535888672, "sibling_score": 0.7308330535888672, "answer_score": null, "sibling_qid": "MUM-2026-05-3156-Q001", "sibling_text": "type of ships chemical tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Certificate of Fitness and MARPOL Annex II in practice", "cross_family": false }, { "answer_id": "FQCC-583-A-003", "score": 0.6982293725013733, "sibling_score": 0.6982293725013733, "answer_score": null, "sibling_qid": "KOC-2026-03-1110-Q008", "sibling_text": "grade of fuel oil used in ur ship", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel grades and marine fuel naming", "cross_family": true } ] }, { "qid": "KOC-2024-04-0329-Q002", "text": "Draw bulbous bow construction", "family": "", "subtopic": "Bulbous Bow", "tid": "KOC-2024-04-0329", "tray": "new", "candidates": [ { "answer_id": "PPS-230-006", "score": 0.5454229712486267, "sibling_score": 0.5454229712486267, "answer_score": 0.38756676465272905, "sibling_qid": "MUM-2026-02-0782-Q011", "sibling_text": "bulbous bow how it is connected to ship shape of bow", "sibling_family": "", "via": "sibling", "answer_title": "Fore-end / fore-peak structure: draw and describe", "cross_family": false }, { "answer_id": "STT-BRG-002", "score": 0.5015404224395752, "sibling_score": 0.5015404224395752, "answer_score": null, "sibling_qid": "KOC-2023-12-0986-Q007", "sibling_text": "draw stern tube arrangement", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "1. Stern tube — arrangement, function, materials and types", "cross_family": false }, { "answer_id": "BSBH-420-002", "score": 0.49557074904441833, "sibling_score": 0.49557074904441833, "answer_score": 0.4497770011425018, "sibling_qid": "KOC-2024-10-0421-Q001", "sibling_text": "draw cross section view fwd of collision bulkhead", "sibling_family": "", "via": "sibling", "answer_title": "Fore-end / forepeak construction forward of the collision bulkhead — members and cross-section", "cross_family": false } ] }, { "qid": "KOC-2024-04-0331-Q001", "text": "MLC title 5- explain what does it say ?", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOC-2024-04-0331", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.4856245815753937, "sibling_score": 0.4856245815753937, "answer_score": 0.30825932025909425, "sibling_qid": "KOC-2026-05-2135-Q011", "sibling_text": "mlc titles explain title 1 explain dmlc part 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "MLC-WRH-B-010", "score": 0.42078617215156555, "sibling_score": 0.42078617215156555, "answer_score": null, "sibling_qid": "MUM-2025-11-0573-Q004", "sibling_text": "how are wages set under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "SEA, the CBA parties, and how wages are set — action on non-payment", "cross_family": false }, { "answer_id": "MLC-WRH-B-006", "score": 0.41604793071746826, "sibling_score": 0.41604793071746826, "answer_score": 0.2528572291135788, "sibling_qid": "MUM-2026-07-3680-Q005", "sibling_text": "what is mlc certificate under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false } ] }, { "qid": "KOC-2024-04-0333-Q001", "text": "Type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2024-04-0333", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8362272381782532, "sibling_score": 0.8362272381782532, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8015320301055908, "sibling_score": 0.8015320301055908, "answer_score": 0.5472018480300903, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8003027439117432, "sibling_score": 0.8003027439117432, "answer_score": 0.5214664876461029, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "KOC-2024-04-0335-Q004", "text": "Draw Rudder construction with bearing", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOC-2024-04-0335", "tray": "review", "candidates": [ { "answer_id": "TRS-002", "score": 0.7141584753990173, "sibling_score": 0.7141584753990173, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "DUS-P5-03", "score": 0.6823045015335083, "sibling_score": 0.6823045015335083, "answer_score": 0.4951475292444229, "sibling_qid": "KOC-2024-12-2058-Q002", "sibling_text": "draw aft portion of the ship without propeller and rudder in it show the rudder axis which pass through the structure", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Stern frame construction, cross-section and rudder-axis sketch", "cross_family": true }, { "answer_id": "RUD-DROP-001", "score": 0.6532689332962036, "sibling_score": 0.6532689332962036, "answer_score": 0.4688966631889343, "sibling_qid": "MUM-2026-05-3150-Q003", "sibling_text": "rudder internal painting", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false } ] }, { "qid": "KOC-2024-04-0335-Q007", "text": "Difference between life raft and ship's rocket parachute pyro? Internal:", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Pyrotechnics / Flares", "tid": "KOC-2024-04-0335", "tray": "new", "candidates": [ { "answer_id": "LB-DAVIT-HRU-003", "score": 0.639263927936554, "sibling_score": 0.639263927936554, "answer_score": null, "sibling_qid": "MUM-2022-07-0015-Q008", "sibling_text": "difference between fwd life raft and aft liferaft", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Difference between the forward and the aft liferaft", "cross_family": false }, { "answer_id": "LSA-LB-A-009", "score": 0.6311097145080566, "sibling_score": 0.6311097145080566, "answer_score": 0.4862389326095581, "sibling_qid": "KOL-2022-05-0635-Q005", "sibling_text": "diff b w life raft life boat and rescue boat regulations because of which they are on board min max capacity of liferaft", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat vs liferaft vs rescue boat — and why each is carried", "cross_family": false }, { "answer_id": "LRHR-B-007", "score": 0.6144716739654541, "sibling_score": 0.6144716739654541, "answer_score": null, "sibling_qid": "KOL-2016-12-0036-Q004", "sibling_text": "liferaft how fitted in deck how it automatically released when ship sink", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "How does the liferaft release and inflate by itself when the ship sinks?", "cross_family": false } ] }, { "qid": "KOC-2024-04-0336-Q004", "text": "draw and explain working storm valve", "family": "General Marine Engineering", "subtopic": "SDNR / SDR", "tid": "KOC-2024-04-0336", "tray": "review", "candidates": [ { "answer_id": "SDNR-SDR-003", "score": 0.8024670481681824, "sibling_score": 0.8024670481681824, "answer_score": 0.5265006095170974, "sibling_qid": "KOC-2026-04-0909-Q005", "sibling_text": "storm valve diagram", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Storm valve -- construction, type, operation as a screw-down non-return valve, and a broken spindle", "cross_family": false }, { "answer_id": "GV-330-001", "score": 0.6373409032821655, "sibling_score": 0.6373409032821655, "answer_score": 0.517900151014328, "sibling_qid": "KOC-2024-08-1858-Q003", "sibling_text": "gate valve diagram", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Draw and explain the gate valve — construction, main parts, operation & onboard use", "cross_family": false }, { "answer_id": "MAST-PVA-004", "score": 0.6154881119728088, "sibling_score": 0.6154881119728088, "answer_score": null, "sibling_qid": "KOC-2026-08-2163-Q010", "sibling_text": "explain the procedure of how pressure reduction valve works with diagram", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "P/V valve & P/V breaker — pressure/vacuum settings and the basis", "cross_family": false } ] }, { "qid": "KOC-2024-04-0993-Q007", "text": "GUSSET STAY", "family": "Boilers - Construction & Components", "subtopic": "Ogee Ring", "tid": "KOC-2024-04-0993", "tray": "new", "candidates": [ { "answer_id": "OGEE-RING-001", "score": 0.5397904515266418, "sibling_score": 0.5397904515266418, "answer_score": null, "sibling_qid": "KOC-2022-01-0954-Q007", "sibling_text": "gusset stay ogee ring", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "The ogee ring: what it is, where it sits, its purpose, and how it's formed and connected", "cross_family": false }, { "answer_id": "FWFB-P02-001", "score": 0.43026813864707947, "sibling_score": 0.43026813864707947, "answer_score": 0.2959563657641411, "sibling_qid": "MUM-2022-10-0061-Q005", "sibling_text": "gusset plate where used", "sibling_family": "", "via": "sibling", "answer_title": "Brackets, knees and gusset plates", "cross_family": false }, { "answer_id": "HATCH-COAM-005", "score": 0.38375091552734375, "sibling_score": 0.38375091552734375, "answer_score": 0.3077915400266647, "sibling_qid": "KOC-2026-02-0799-Q006", "sibling_text": "hatch coming coming stay", "sibling_family": "", "via": "sibling", "answer_title": "What supports, stays or strengthening members are provided for hatch coamings and large hatch openings?", "cross_family": false } ] }, { "qid": "KOC-2024-04-1343-Q004", "text": "Draw and explain 3 point starter", "family": "Electrical - Motors & Starters", "subtopic": "DC Motor Three-Point Starter", "tid": "KOC-2024-04-1343", "tray": "review", "candidates": [ { "answer_id": "STR-DEC-A-001", "score": 0.7593659162521362, "sibling_score": 0.7593659162521362, "answer_score": null, "sibling_qid": "KOC-2026-05-2133-Q010", "sibling_text": "draw and explain 3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "STARTER-DEC-B-003", "score": 0.6062524914741516, "sibling_score": 0.6062524914741516, "answer_score": null, "sibling_qid": "KOC-2023-04-1255-Q006", "sibling_text": "dol starter 3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "DOL starter — use, current, range and limits", "cross_family": false }, { "answer_id": "SDST-A-001", "score": 0.5960819125175476, "sibling_score": 0.5960819125175476, "answer_score": 0.3654998034238815, "sibling_qid": "KOC-2024-10-1415-Q002", "sibling_text": "draw and explain star dela starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false } ] }, { "qid": "KOC-2024-04-1344-Q001", "text": "Draw and explain 3 point starter", "family": "Electrical - Motors & Starters", "subtopic": "DC Motor Three-Point Starter", "tid": "KOC-2024-04-1344", "tray": "review", "candidates": [ { "answer_id": "STR-DEC-A-001", "score": 0.759365975856781, "sibling_score": 0.759365975856781, "answer_score": null, "sibling_qid": "KOC-2026-05-2133-Q010", "sibling_text": "draw and explain 3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "STARTER-DEC-B-003", "score": 0.6062524914741516, "sibling_score": 0.6062524914741516, "answer_score": null, "sibling_qid": "KOC-2023-04-1255-Q006", "sibling_text": "dol starter 3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "DOL starter — use, current, range and limits", "cross_family": false }, { "answer_id": "SDST-A-001", "score": 0.5960819125175476, "sibling_score": 0.5960819125175476, "answer_score": 0.3654998034238815, "sibling_qid": "KOC-2024-10-1415-Q002", "sibling_text": "draw and explain star dela starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false } ] }, { "qid": "KOC-2024-04-1345-Q007", "text": "3 Point Starter", "family": "Electrical - Motors & Starters", "subtopic": "DC Motor Three-Point Starter", "tid": "KOC-2024-04-1345", "tray": "review", "candidates": [ { "answer_id": "STR-DEC-A-001", "score": 0.786133348941803, "sibling_score": 0.786133348941803, "answer_score": null, "sibling_qid": "KOC-2026-02-1712-Q002", "sibling_text": "3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "STARTER-DEC-B-003", "score": 0.7465803027153015, "sibling_score": 0.7465803027153015, "answer_score": null, "sibling_qid": "KOC-2023-04-1255-Q006", "sibling_text": "dol starter 3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "DOL starter — use, current, range and limits", "cross_family": false }, { "answer_id": "SOFT-START-P01-001", "score": 0.6020213961601257, "sibling_score": 0.6020213961601257, "answer_score": null, "sibling_qid": "KOL-2017-07-2140-Q003", "sibling_text": "3 soft starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Soft Starter — Definition, Purpose and Working", "cross_family": false } ] }, { "qid": "KOC-2024-04-1346-Q001", "text": "Dc generators paralleling -questions on it ?", "family": "Electrical - Generator & Alternator", "subtopic": "Synchronization", "tid": "KOC-2024-04-1346", "tray": "review", "candidates": [ { "answer_id": "SYNC-C-001", "score": 0.7153566479682922, "sibling_score": 0.7153566479682922, "answer_score": 0.45940918028354644, "sibling_qid": "KOC-2026-02-1694-Q003", "sibling_text": "dc generator paralleling", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Paralleling generators — procedure, conditions and practical checks", "cross_family": false }, { "answer_id": "LS-IMB-A-001", "score": 0.664322555065155, "sibling_score": 0.664322555065155, "answer_score": null, "sibling_qid": "KOC-2024-11-1440-Q008", "sibling_text": "2 generator running parallel one generator draws more current reasons internal working of dp transmitter", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Two paralleled generators sharing unequal load — cause and correction", "cross_family": false }, { "answer_id": "LS-IMB-A-003", "score": 0.6487322449684143, "sibling_score": 0.6487322449684143, "answer_score": 0.47828540205955505, "sibling_qid": "KOL-2025-05-2779-Q005", "sibling_text": "can you parallel two generator if one load is 750kw and other 250 kw can we parallel emg with normal generator and why", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "3. Paralleling generators of different ratings, and the emergency-generator question", "cross_family": false } ] }, { "qid": "KOC-2024-04-1837-Q002", "text": "how to order drill bits", "family": "Workshop & Welding", "subtopic": "Pipe Pressure Test", "tid": "KOC-2024-04-1837", "tray": "review", "candidates": [ { "answer_id": "WTGS-325-004", "score": 0.7552712559700012, "sibling_score": 0.7552712559700012, "answer_score": 0.5618905425071716, "sibling_qid": "KOC-2026-08-2163-Q012", "sibling_text": "how will you order drill bit", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Drill bits & drilling: ordering, portable vs fixed machine", "cross_family": false }, { "answer_id": "METAL-LOCK-002", "score": 0.5609139800071716, "sibling_score": 0.5609139800071716, "answer_score": null, "sibling_qid": "KOL-2020-02-3326-Q003", "sibling_text": "metal locking what drill bit to use how will u decide", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Metal locking procedure: pockets, keys, stitching pins", "cross_family": false }, { "answer_id": "BBR-001", "score": 0.5566077828407288, "sibling_score": 0.5566077828407288, "answer_score": null, "sibling_qid": "KOL-2019-10-3280-Q004", "sibling_text": "stud extracting method how to choose drill bit material of drill bit", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "How do you extract a broken or sheared stud/bolt from machinery or structure?", "cross_family": false } ] }, { "qid": "KOC-2024-04-1839-Q008", "text": "BOILER SAFETY VALVE SETTING IN FRONT OF SURVEYOR AND DRAW TOP PART OF VALVE", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2024-04-1839", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P01-001", "score": 0.8448044657707214, "sibling_score": 0.8448044657707214, "answer_score": null, "sibling_qid": "KOC-2026-08-2122-Q005", "sibling_text": "boiler safety valve setting in front of surveyor", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.7321907877922058, "sibling_score": 0.7321907877922058, "answer_score": null, "sibling_qid": "CHE-2026-05-0597-Q020", "sibling_text": "boiler safety valve how the setting is done", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.7145900130271912, "sibling_score": 0.7145900130271912, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q012", "sibling_text": "draw top part of improved high lift safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOC-2024-04-2044-Q017", "text": "■how u take AE performance if u can’t run it on high load. What u check. PAUL: How was your oral Good sir Motor u ll have to appear again Mean Effective Pressure:pass", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "SFOC", "tid": "KOC-2024-04-2044", "tray": "review", "candidates": [ { "answer_id": "CPP-POL-01", "score": 0.6725532412528992, "sibling_score": 0.6725532412528992, "answer_score": 0.5082763314247131, "sibling_qid": "KOC-2026-08-2148-Q015", "sibling_text": "what parameters do you check when taking main engine performance", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Why and how is a main-engine performance test prepared, taken and assessed?", "cross_family": false }, { "answer_id": "IND-CARD-006", "score": 0.6680812835693359, "sibling_score": 0.6680812835693359, "answer_score": null, "sibling_qid": "KOL-2025-07-1819-Q015", "sibling_text": "a e one unit peak pressure and exhaust temp high reason", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Interpreting Pmax, Pcomp and exhaust-temperature changes for timing and combustion", "cross_family": false }, { "answer_id": "AEDEC-291-004", "score": 0.6577858328819275, "sibling_score": 0.6577858328819275, "answer_score": null, "sibling_qid": "KOL-2019-11-3298-Q002", "sibling_text": "ae full oh carried out ae running on no load what all things u will check as 2nd eng not satisfied with answer", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "4. Checks on no-load and before taking load", "cross_family": true } ] }, { "qid": "KOC-2024-05-0337-Q005", "text": "DMLC", "family": "MLC", "subtopic": "MLC / DMLC / Work-Rest", "tid": "KOC-2024-05-0337", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.7612714171409607, "sibling_score": 0.7612714171409607, "answer_score": 0.3291188582777977, "sibling_qid": "MUM-2026-03-0817-Q002", "sibling_text": "dmlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "DCP-PPC-003", "score": 0.3112025409936905, "sibling_score": null, "answer_score": 0.3112025409936905, "sibling_qid": "", "sibling_text": "c3 dcp general working advantages disadvantages common issues", "sibling_family": "", "via": "answer_title", "answer_title": "C3 — DCP — General Working, Advantages, Disadvantages & Common Issues", "cross_family": false }, { "answer_id": "ENG-NOM-006", "score": 0.282122802734375, "sibling_score": null, "answer_score": 0.282122802734375, "sibling_qid": "", "sibling_text": "short form asks smc c lmc and me vs mc quickly smc c super long stroke man programme camshaft controlled compact lmc l long stroke the l is the stroke letter not a control or compact letter", "sibling_family": "", "via": "answer_title", "answer_title": "Short-form asks: SMC-C, LMC, and ME vs MC quickly", "cross_family": false } ] }, { "qid": "KOC-2024-05-0337-Q006", "text": "MLC titles", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOC-2024-05-0337", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.6392328143119812, "sibling_score": 0.6392328143119812, "answer_score": 0.2686029255390167, "sibling_qid": "KOC-2026-05-2135-Q011", "sibling_text": "mlc titles explain title 1 explain dmlc part 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "MLC-WRH-B-006", "score": 0.5393727421760559, "sibling_score": 0.5393727421760559, "answer_score": null, "sibling_qid": "MUM-2026-06-3645-Q001", "sibling_text": "certificates of mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false }, { "answer_id": "ISMNC-002", "score": 0.4681525230407715, "sibling_score": 0.4681525230407715, "answer_score": null, "sibling_qid": "MUM-2026-01-0685-Q005", "sibling_text": "mlc mnc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a major non-conformity under the ISM Code? 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Reciprocating pump — construction, working and how you know it is discharging", "cross_family": true } ] }, { "qid": "KOC-2024-05-0342-Q002", "text": "Explosive meter", "family": "Gas Detection & Instruments", "subtopic": "Explosimeter / Gas Detector", "tid": "KOC-2024-05-0342", "tray": "review", "candidates": [ { "answer_id": "GAS-DET-008", "score": 0.7897548079490662, "sibling_score": 0.7897548079490662, "answer_score": 0.5638574182987213, "sibling_qid": "KOC-2026-09-2176-Q003", "sibling_text": "explosimeter working", "sibling_family": "Gas Detection & Instruments", "via": "sibling", "answer_title": "Explosimeter: construction, working, calibration, gases detected", "cross_family": false }, { "answer_id": "GAS-DET-006", "score": 0.7072616219520569, "sibling_score": 0.7072616219520569, "answer_score": 0.5048405051231384, "sibling_qid": "MUM-2026-09-3960-Q006", "sibling_text": "tank scope and explosive meter why used explosive meter if tank scope is there", "sibling_family": "Gas Detection & Instruments", "via": "sibling", "answer_title": "Tankscope vs explosimeter: construction, working, where to use, gases", "cross_family": false }, { "answer_id": "ESE-P01-009", "score": 0.6778566241264343, "sibling_score": 0.6778566241264343, "answer_score": null, "sibling_qid": "KOL-2025-09-1051-Q007", "sibling_text": "in what atmosphere explosion meter will not work what is the other name of explosion meter", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "Atmosphere checks, gases to test and safe entry limits", "cross_family": true } ] }, { "qid": "KOC-2024-05-0343-Q007", "text": "Rudder bearing", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOC-2024-05-0343", "tray": "review", "candidates": [ { "answer_id": "TRS-002", "score": 0.7614208459854126, "sibling_score": 0.7614208459854126, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "PRE-TEN-001", "score": 0.7437853217124939, "sibling_score": 0.7437853217124939, "answer_score": null, "sibling_qid": "MUM-2026-09-3907-Q001", "sibling_text": "rudder carrier bearing replacement in port", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Pre-stressing and pre-tensioning in main-engine bolting", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.7411536574363708, "sibling_score": 0.7411536574363708, "answer_score": 0.509174045920372, "sibling_qid": "MUM-2026-06-3610-Q003", "sibling_text": "removal of rudder bearing", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false } ] }, { "qid": "KOC-2024-05-0346-Q006", "text": "Marpol annex 1 and", "family": "MARPOL - Annex I (Oil)", "subtopic": "IOPP", "tid": "KOC-2024-05-0346", "tray": "review", "candidates": [ { "answer_id": "MARPOL-OV-003", "score": 0.7188339233398438, "sibling_score": 0.7188339233398438, "answer_score": 0.5034865111112594, "sibling_qid": "MUM-2026-09-3916-Q003", "sibling_text": "marpol annexes all", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "General overview of MARPOL and all annexes", "cross_family": false }, { "answer_id": "IOPP-191-005", "score": 0.7107859253883362, "sibling_score": 0.7107859253883362, "answer_score": null, "sibling_qid": "CHE-2026-04-0147-Q005", "sibling_text": "marpol annex 1 documents", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "MARPOL Annex I certificates and documents for IOPP / OWS / PSC preparation", "cross_family": false }, { "answer_id": "ODC-004", "score": 0.694464385509491, "sibling_score": 0.694464385509491, "answer_score": null, "sibling_qid": "CHE-2026-03-0127-Q009", "sibling_text": "what marpol annex 1 regulation 14", "sibling_family": "MARPOL - 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Operations & Firing", "subtopic": "Soot/Iron/Hydrogen Fire", "tid": "KOC-2024-05-0347", "tray": "review", "candidates": [ { "answer_id": "UPT-FIRE-001", "score": 0.7492720484733582, "sibling_score": 0.7492720484733582, "answer_score": null, "sibling_qid": "KOL-2019-11-3288-Q002", "sibling_text": "actions as 2 e on boiler uptake fire", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "The 4/E reports an uptake fire — your actions as 2/E", "cross_family": false }, { "answer_id": "UPT-FIRE-002", "score": 0.7332510352134705, "sibling_score": 0.7332510352134705, "answer_score": 0.5134474992752075, "sibling_qid": "KOL-2024-11-1789-Q011", "sibling_text": "boiler uptake fire indication action", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "How a boiler uptake fire takes place — indications and prevention", "cross_family": false }, { "answer_id": "FIXED-FF-B-002", "score": 0.7241668105125427, "sibling_score": 0.7241668105125427, "answer_score": null, "sibling_qid": "MUM-2026-03-0864-Q004", "sibling_text": "tell me what all firefighting near boiler", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Local fixed arrangements for boiler fronts, galley fryers, paint lockers, ECRs and small special spaces", "cross_family": true } ] }, { "qid": "KOC-2024-05-0994-Q001", "text": "Fwg cleaning chemical and acid name", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "KOC-2024-05-0994", "tray": "review", "candidates": [ { "answer_id": "HULL-PAINT-001", "score": 0.6880602240562439, "sibling_score": 0.6880602240562439, "answer_score": null, "sibling_qid": "MUM-2026-05-3247-Q009", "sibling_text": "fwg chemical cleaning if no chemical is available what you can use", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Preparing the hull surface before painting in dry dock — cleanliness standard and methods", "cross_family": false }, { "answer_id": "ECON-EGB-005", "score": 0.5911540985107422, "sibling_score": 0.5911540985107422, "answer_score": 0.3809520035982132, "sibling_qid": "KOC-2025-01-1457-Q010", "sibling_text": "egb cleaning wanted to hear chemical cleaning and chemical used didn t knew", "sibling_family": "Boilers - 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Explain Functional and Error operated. Explain droop. AVR trimmer function and location of trimmer", "family": "Electrical - Generator & Alternator", "subtopic": "Voltage Dip / Droop", "tid": "KOC-2024-05-1350", "tray": "review", "candidates": [ { "answer_id": "AVR-EXC-H-001", "score": 0.7050978541374207, "sibling_score": 0.7050978541374207, "answer_score": null, "sibling_qid": "KOC-2024-02-1330-Q007", "sibling_text": "avr trimmer explain and location", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "AVR — location, components and fault checks", "cross_family": false }, { "answer_id": "AVR-EXC-D-001", "score": 0.6938543915748596, "sibling_score": 0.6938543915748596, "answer_score": null, "sibling_qid": "KOC-2022-09-1195-Q002", "sibling_text": "types of avr static avr explain purpose of voltage trimmer", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Static AVR / static excitation — types of AVR, and how the static system works", "cross_family": false }, { "answer_id": "AVR-EXC-E-001", "score": 0.6833863854408264, "sibling_score": 0.6833863854408264, "answer_score": null, "sibling_qid": "KOC-2025-07-1560-Q003", "sibling_text": "type of avr explain static avr why voltage trimmer location", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "How does a static AVR / static excitation system work? (draw & explain)", "cross_family": false } ] }, { "qid": "KOC-2024-05-1351-Q004", "text": "Draw and explain 3 point starter", "family": "Electrical - Motors & Starters", "subtopic": "DC Motor Three-Point Starter", "tid": "KOC-2024-05-1351", "tray": "review", "candidates": [ { "answer_id": "STR-DEC-A-001", "score": 0.7585037350654602, "sibling_score": 0.7585037350654602, "answer_score": null, "sibling_qid": "KOC-2026-05-2133-Q010", "sibling_text": "draw and explain 3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "STARTER-DEC-B-003", "score": 0.6061703562736511, "sibling_score": 0.6061703562736511, "answer_score": null, "sibling_qid": "KOC-2023-04-1255-Q006", "sibling_text": "dol starter 3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "DOL starter — use, current, range and limits", "cross_family": false }, { "answer_id": "SDST-A-001", "score": 0.5965580940246582, "sibling_score": 0.5965580940246582, "answer_score": 0.366552397608757, "sibling_qid": "KOC-2024-10-1415-Q002", "sibling_text": "draw and explain star dela starter", "sibling_family": "Electrical - 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Motors & Starters", "subtopic": "DC Motor Three-Point Starter", "tid": "KOC-2024-05-1361", "tray": "new", "candidates": [ { "answer_id": "SDST-A-001", "score": 0.6483777165412903, "sibling_score": 0.6483777165412903, "answer_score": 0.38537970334291455, "sibling_qid": "KOC-2026-02-1701-Q005", "sibling_text": "three point starter diagram with explanation", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false }, { "answer_id": "STR-DEC-A-001", "score": 0.6177913546562195, "sibling_score": 0.6177913546562195, "answer_score": null, "sibling_qid": "KOC-2026-05-2133-Q010", "sibling_text": "draw and explain 3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "STARTER-DEC-B-003", "score": 0.5718714594841003, "sibling_score": 0.5718714594841003, "answer_score": null, "sibling_qid": "KOC-2023-04-1255-Q006", "sibling_text": "dol starter 3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "DOL starter — use, current, range and limits", "cross_family": false } ] }, { "qid": "KOC-2024-05-1361-Q006", "text": "how to order induction motor? Tom sir", "family": "Electrical - Motors & Starters", "subtopic": "Motor Specification / Ordering", "tid": "KOC-2024-05-1361", "tray": "review", "candidates": [ { "answer_id": "BRG-NOM-001", "score": 0.7037329077720642, "sibling_score": 0.7037329077720642, "answer_score": null, "sibling_qid": "MUM-2026-09-3871-Q005", "sibling_text": "how to order motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Bearing Numbers, Suffixes and What to State When Ordering", "cross_family": false }, { "answer_id": "IMSP-001", "score": 0.6210499405860901, "sibling_score": 0.6210499405860901, "answer_score": null, "sibling_qid": "KOL-2026-04-2985-Q003", "sibling_text": "induction motor selection reasons", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Why does an induction motor draw a high initial current and how do you avoid the inrush? What is the effect of starting a large motor on one DG only? What causes an overcurrent trip?", "cross_family": false }, { "answer_id": "BDC-P02-02", "score": 0.620354413986206, "sibling_score": 0.620354413986206, "answer_score": null, "sibling_qid": "KOC-2023-12-1310-Q004", "sibling_text": "how to order battery 5 synchronous motor vs induction motor", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "Ordering a replacement battery — the specification the supplier needs from you", "cross_family": true } ] }, { "qid": "KOC-2024-05-1362-Q003", "text": "Various jobs done in engine room related to electrical", "family": "Electrical - Motors & Starters", "subtopic": "Type of Starter Decision", "tid": "KOC-2024-05-1362", "tray": "review", "candidates": [ { "answer_id": "IRT-A-016", "score": 0.7725279927253723, "sibling_score": 0.7725279927253723, "answer_score": null, "sibling_qid": "KOC-2026-04-1738-Q011S2", "sibling_text": "electrical jobs carried out onboard internal ques", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Electrical maintenance you do onboard", "cross_family": false }, { "answer_id": "ELEC-SURV-002", "score": 0.7412900924682617, "sibling_score": 0.7412900924682617, "answer_score": 0.549521142244339, "sibling_qid": "MUM-2022-09-1355-Q009", "sibling_text": "electrical checks in engine room", "sibling_family": "Surveys - 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LSA & Lifeboats", "via": "sibling", "answer_title": "What life-saving equipment does the LSA Code / SOLAS Chapter III require on or near the bridge?", "cross_family": true }, { "answer_id": "BCME-001", "score": 0.5533574819564819, "sibling_score": 0.5533574819564819, "answer_score": null, "sibling_qid": "MUM-2025-12-1222-Q003", "sibling_text": "manoeuvring diagram details bridge to ecr", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Operating the main engine from the bridge — command, control transfer and telegraph response", "cross_family": true } ] }, { "qid": "KOC-2024-05-1362-Q009", "text": "Ecdics,Gmdss,Bnwas", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "KOC-2024-05-1362", "tray": "new", "candidates": [ { "answer_id": "UNL-330-001", "score": 0.5892618298530579, "sibling_score": 0.5892618298530579, "answer_score": null, "sibling_qid": "MUM-2026-05-3273-Q008", "sibling_text": "gmdss", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "What is the function of the main air compressor unloader?", "cross_family": false }, { "answer_id": "bdc-p05-03", "score": 0.5158841609954834, "sibling_score": 0.5158841609954834, "answer_score": null, "sibling_qid": "MUM-2025-08-1578-Q005", "sibling_text": "gmdss gs battery solas", "sibling_family": "Electrical - 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Distribution & MSB", "subtopic": "Lighting / Lamps", "tid": "KOC-2024-05-1362", "tray": "new", "candidates": [ { "answer_id": "IP-ENCL-002", "score": 0.6261701583862305, "sibling_score": 0.6261701583862305, "answer_score": null, "sibling_qid": "MUM-2025-06-1538-Q006", "sibling_text": "ip protection what protection on deck", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Suitable IP rating by location — ER, deck, pump, generator", "cross_family": true }, { "answer_id": "WCM-P02-001", "score": 0.6155750751495361, "sibling_score": 0.6155750751495361, "answer_score": null, "sibling_qid": "MUM-2026-06-3651-Q006", "sibling_text": "deck electrical safeties", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Safeties and trips on ship's cranes (deck, cargo, provision, engine-room)", "cross_family": true }, { "answer_id": "FIRE-P03-06", "score": 0.6065285205841064, "sibling_score": 0.6065285205841064, "answer_score": null, "sibling_qid": "MUM-2026-05-3340-Q007", "sibling_text": "protection from fire on deck", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Structural fire protection — subdivision, decks, bulkheads and prevention of spread", "cross_family": true } ] }, { "qid": "KOC-2024-05-1840-Q004", "text": "How to order drill bits", "family": "Workshop & Welding", "subtopic": "Pipe Pressure Test", "tid": "KOC-2024-05-1840", "tray": "review", "candidates": [ { "answer_id": "WTGS-325-004", "score": 0.7555835247039795, "sibling_score": 0.7555835247039795, "answer_score": 0.5623666316270828, "sibling_qid": "KOC-2026-08-2163-Q012", "sibling_text": "how will you order drill bit", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Drill bits & drilling: ordering, portable vs fixed machine", "cross_family": false }, { "answer_id": "METAL-LOCK-002", "score": 0.561531126499176, "sibling_score": 0.561531126499176, "answer_score": null, "sibling_qid": "KOL-2020-02-3326-Q003", "sibling_text": "metal locking what drill bit to use how will u decide", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Metal locking procedure: pockets, keys, stitching pins", "cross_family": false }, { "answer_id": "BBR-001", "score": 0.557336151599884, "sibling_score": 0.557336151599884, "answer_score": null, "sibling_qid": "KOL-2019-10-3280-Q004", "sibling_text": "stud extracting method how to choose drill bit material of drill bit", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "How do you extract a broken or sheared stud/bolt from machinery or structure?", "cross_family": false } ] }, { "qid": "KOC-2024-05-1840-Q005", "text": "Why bumping clearance not important in generators. What is volumetric efficiency?", "family": "2-Stroke - Components (Other)", "subtopic": "Running Clearances (Bumping/Jumping)", "tid": "KOC-2024-05-1840", "tray": "new", "candidates": [ { "answer_id": "AC-VE-001", "score": 0.6033611297607422, "sibling_score": 0.6033611297607422, "answer_score": 0.5048346281051636, "sibling_qid": "KOL-2023-02-1725-Q007", "sibling_text": "volumetric efficiency of compressor gone done bumping clearance adjustment", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Volumetric efficiency: define it, and if it drops how do you improve it (with bumping clearance)?", "cross_family": true }, { "answer_id": "AC-VE-002", "score": 0.4978519678115845, "sibling_score": 0.4978519678115845, "answer_score": 0.42215754985809323, "sibling_qid": "KOL-2018-06-1381-Q003", "sibling_text": "what is volumetric efficiency of the engine", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "What is volumetric efficiency, how is it calculated, and when/how do you check it?", "cross_family": true }, { "answer_id": "AC-VE-003", "score": 0.4787575602531433, "sibling_score": 0.4787575602531433, "answer_score": null, "sibling_qid": "KOL-2017-05-1294-Q001", "sibling_text": "what factor effect volumetric efficiency", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "What factors affect volumetric efficiency, including suction and discharge losses?", "cross_family": true } ] }, { "qid": "KOC-2024-05-1841-Q006", "text": "Safety valve setting in front of surveyor", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2024-05-1841", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P01-001", "score": 0.8381034135818481, "sibling_score": 0.8381034135818481, "answer_score": null, "sibling_qid": "KOC-2026-05-2142-Q008", "sibling_text": "safety valve setting in front of surveyor", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "ECON-EGB-004", "score": 0.6554898023605347, "sibling_score": 0.6554898023605347, "answer_score": 0.5054092079401016, "sibling_qid": "KOL-2026-02-3912-Q003", "sibling_text": "safety valve setting procedure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Safety-valve setting after overhaul & why set higher than the boiler", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.6460798382759094, "sibling_score": 0.6460798382759094, "answer_score": null, "sibling_qid": "MUM-2026-02-1255-Q006", "sibling_text": "setting of safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false } ] }, { "qid": "KOC-2024-05-1842-Q004", "text": "Safety valve setting procedure after survey", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2024-05-1842", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P01-001", "score": 0.7698829770088196, "sibling_score": 0.7698829770088196, "answer_score": null, "sibling_qid": "KOC-2026-09-2205-Q019", "sibling_text": "setting safety valve infront of surveyor", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "ECON-EGB-004", "score": 0.7104824185371399, "sibling_score": 0.7104824185371399, "answer_score": 0.5837032973766326, "sibling_qid": "CHE-2026-05-0601-Q010", "sibling_text": "safety valve setting procedure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Safety-valve setting after overhaul & why set higher than the boiler", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.6766628623008728, "sibling_score": 0.6766628623008728, "answer_score": null, "sibling_qid": "MUM-2026-02-1255-Q006", "sibling_text": "setting of safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false } ] }, { "qid": "KOC-2024-05-1842-Q005", "text": "Draw the top portion of the safety valve", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2024-05-1842", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.711737334728241, "sibling_score": 0.711737334728241, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q012", "sibling_text": "draw top part of improved high lift safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "MR-DS-PV-B-006", "score": 0.5862743258476257, "sibling_score": 0.5862743258476257, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q005", "sibling_text": "full bore safety valve diagram", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "6. Deck isolating valve, deck relief/safety devices, and cargo-tank pressure", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.5637298822402954, "sibling_score": 0.5637298822402954, "answer_score": null, "sibling_qid": "KOC-2026-05-2142-Q008", "sibling_text": "safety valve setting in front of surveyor", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false } ] }, { "qid": "KOC-2024-05-2046-Q013", "text": "Rudder carrier bearing diagram", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOC-2024-05-2046", "tray": "review", "candidates": [ { "answer_id": "TRS-002", "score": 0.7433025240898132, "sibling_score": 0.7433025240898132, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "PRE-TEN-001", "score": 0.7323412299156189, "sibling_score": 0.7323412299156189, "answer_score": null, "sibling_qid": "MUM-2026-06-3504-Q007", "sibling_text": "rudder carrier bearing removal procedure", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Pre-stressing and pre-tensioning in main-engine bolting", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.6869688034057617, "sibling_score": 0.6869688034057617, "answer_score": 0.49472808241844174, "sibling_qid": "CHE-2026-02-0110-Q006", "sibling_text": "how rudder weight is carried key ans i said carrier bearing how it carrying explain", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false } ] }, { "qid": "KOC-2024-05-2046-Q017", "text": "3 point starter diagram and explain", "family": "Electrical - Motors & Starters", "subtopic": "DC Motor / Commutator", "tid": "KOC-2024-05-2046", "tray": "review", "candidates": [ { "answer_id": "SDST-A-001", "score": 0.7055402398109436, "sibling_score": 0.7055402398109436, "answer_score": 0.4331776678562164, "sibling_qid": "KOC-2026-02-1701-Q005", "sibling_text": "three point starter diagram with explanation", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false }, { "answer_id": "STR-DEC-A-001", "score": 0.5889468789100647, "sibling_score": 0.5889468789100647, "answer_score": null, "sibling_qid": "KOC-2026-05-2133-Q010", "sibling_text": "draw and explain 3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "STARTER-DEC-B-003", "score": 0.562237024307251, "sibling_score": 0.562237024307251, "answer_score": null, "sibling_qid": "KOC-2023-04-1255-Q006", "sibling_text": "dol starter 3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "DOL starter — use, current, range and limits", "cross_family": false } ] }, { "qid": "KOC-2024-05-2046-Q020", "text": "Gangway motor tripping reason", "family": "Electrical - Motors & Starters", "subtopic": "Motor Not Starting", "tid": "KOC-2024-05-2046", "tray": "review", "candidates": [ { "answer_id": "MNS-009", "score": 0.8203778266906738, "sibling_score": 0.8203778266906738, "answer_score": 0.50044966340065, "sibling_qid": "KOC-2025-10-1597-Q004", "sibling_text": "gangway motor tripping electrical reasons", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Motor trips on starting, or immediately after — electrical reasons and your checks", "cross_family": false }, { "answer_id": "MNS-004", "score": 0.5192717254161835, "sibling_score": null, "answer_score": 0.5192717254161835, "sibling_qid": "", "sibling_text": "motor starts and then stops again and again frequent start stop cycling on a gangway motor it started so supply fuses and main path are broadly sound that narrows the tree immediately overload relay cutting in on each start and self resetting on cooling is the classic cycling cause", "sibling_family": "", "via": "answer_title", "answer_title": "Motor starts and then stops, again and again — frequent start/stop cycling on a gangway motor", "cross_family": false }, { "answer_id": "AUX-CRANE-005", "score": 0.48390535116195676, "sibling_score": null, "answer_score": 0.48390535116195676, "sibling_qid": "", "sibling_text": "causes of deck crane trips and how to investigate and repair deck crane faults protection trips overload load exceeds swl at radius motor thermal overcurrent hydraulic over pressure or low level oil over temperature limit switch reached emergency stop supply control faults low or lost control voltage phase failure imbalance blown fuse dropped out contactor brake fault", "sibling_family": "", "via": "answer_title", "answer_title": "Causes of deck crane trips, and how to investigate and repair deck crane faults", "cross_family": false } ] }, { "qid": "KOC-2024-05-2047-Q003", "text": "■Static and Dynamic stability difference", "family": "SOLAS", "subtopic": "Static / Dynamic Stability", "tid": "KOC-2024-05-2047", "tray": "review", "candidates": [ { "answer_id": "STAB-SD-C-001", "score": 0.7402383089065552, "sibling_score": 0.7402383089065552, "answer_score": 0.5706148743629456, "sibling_qid": "MUM-2026-01-0717-Q005", "sibling_text": "static dymanic stability", "sibling_family": "", "via": "sibling", "answer_title": "Static stability vs dynamic stability — and how each is measured", "cross_family": false }, { "answer_id": "STAB-SD-C-002", "score": 0.5286873161792754, "sibling_score": null, "answer_score": 0.5286873161792754, "sibling_qid": "", "sibling_text": "static stability what it is and what it quantifies", "sibling_family": "", "via": "answer_title", "answer_title": "Static stability — what it is and what it quantifies", "cross_family": false }, { "answer_id": "DAM-STAB-P03-001", "score": 0.5140924513339996, "sibling_score": null, "answer_score": 0.5140924513339996, "sibling_qid": "", "sibling_text": "intact static dynamic and damage stability difference and criteria intact stability means the ship is undamaged damage stability means one or more spaces are assumed flooded and the residual condition is assessed static stability is the righting lever gz at a stated heel angle dynamic stability is the area under the gz curve it represents work or energy to heel the ship through an angle", "sibling_family": "", "via": "answer_title", "answer_title": "Intact, static, dynamic and damage stability: difference and criteria", "cross_family": false } ] }, { "qid": "KOC-2024-05-2048-Q005", "text": "■static and dynamic Stability criteria", "family": "SOLAS", "subtopic": "Static / Dynamic Stability", "tid": "KOC-2024-05-2048", "tray": "review", "candidates": [ { "answer_id": "STAB-SD-C-001", "score": 0.8127295970916748, "sibling_score": 0.8127295970916748, "answer_score": 0.590151298046112, "sibling_qid": "KOC-2025-04-0587-Q003", "sibling_text": "static dynamic stability criteria", "sibling_family": "", "via": "sibling", "answer_title": "Static stability vs dynamic stability — and how each is measured", "cross_family": false }, { "answer_id": "STAB-SD-C-002", "score": 0.7868906259536743, "sibling_score": 0.7868906259536743, "answer_score": 0.5725107192993164, "sibling_qid": "KOC-2023-08-0216-Q005", "sibling_text": "static stability criteria", "sibling_family": "", "via": "sibling", "answer_title": "Static stability — what it is and what it quantifies", "cross_family": false }, { "answer_id": "STAB-B-001", "score": 0.7815396785736084, "sibling_score": 0.7815396785736084, "answer_score": 0.5087702542543411, "sibling_qid": "KOC-2022-11-0112-Q008", "sibling_text": "intact stability criteria and dynamic stability criteria", "sibling_family": "", "via": "sibling", "answer_title": "Dynamic stability — definition, physical meaning, and the IS Code criteria", "cross_family": false } ] }, { "qid": "KOC-2024-05-2048-Q006", "text": "■lifeboat winch break static and dynamic load testing", "family": "SOLAS - LSA & Lifeboats", "subtopic": "LSA Code", "tid": "KOC-2024-05-2048", "tray": "review", "candidates": [ { "answer_id": "LBT-TEST-B-001", "score": 0.8026954531669617, "sibling_score": 0.8026954531669617, "answer_score": 0.5513531506061554, "sibling_qid": "KOC-2021-07-0020-Q004", "sibling_text": "winch load test for lifeboat static and dynamic", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat/davit load-test proof loads and test conditions", "cross_family": false }, { "answer_id": "LBT-TEST-B-003", "score": 0.7863077521324158, "sibling_score": 0.7863077521324158, "answer_score": 0.5846350073814391, "sibling_qid": "MUM-2022-10-0061-Q008", "sibling_text": "dynamic load test on lifeboat winch brake checks after", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Winch/davit brake test — static vs dynamic, holding capacity, slippage", "cross_family": false }, { "answer_id": "LB-SDT-A-001", "score": 0.783561646938324, "sibling_score": 0.783561646938324, "answer_score": 0.644448459148407, "sibling_qid": "KOC-2022-10-0106-Q007", "sibling_text": "static dynamic testing of lifeboat winch", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat static and dynamic test — purpose and procedure", "cross_family": false } ] }, { "qid": "KOC-2024-05-2048-Q012", "text": "■draw and explain pressure jet burner Tomy sir: Explain the effect of reduced clearance in bottom end bearing of AE And one more.. forgot Int: type of ship sailing.. i said chemical tankerstructural difference btw chemical tankers and other ship.. and cross ques", "family": "Boilers - Operations & Firing", "subtopic": "Burner Type (Rotary Cup / Pressure Jet)", "tid": "KOC-2024-05-2048", "tray": "review", "candidates": [ { "answer_id": "BLRBURN-001", "score": 0.7126742005348206, "sibling_score": 0.7126742005348206, "answer_score": 0.5510176539421081, "sibling_qid": "KOC-2024-05-0995-Q004", "sibling_text": "pressure jet burner diagram and explanation", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Draw and explain the pressure jet burner — its construction and working.", "cross_family": false }, { "answer_id": "AV6-P02-02", "score": 0.7035248279571533, "sibling_score": 0.7035248279571533, "answer_score": null, "sibling_qid": "KOL-2022-10-0689-Q053", "sibling_text": "why boiler doesn t have nox stresses on a ship panting arrangements d1 standard of bwm ism extrernal stakeholders one more that i forgot tank distance for type 1 tanker from side and bottom how to draw floodable length curve", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "NOx applicability — which engines, why boilers are outside, and 2-stroke vs 4-stroke comparison", "cross_family": true }, { "answer_id": "COT-02", "score": 0.6995877027511597, "sibling_score": 0.6995877027511597, "answer_score": 0.5279888123273849, "sibling_qid": "KOC-2025-06-0605-Q003", "sibling_text": "draw chemical tanker cross section constructional difference b w chemical and conventional tanker why crude oil tanker deck stiffeners are placed inside how arrangements for ballast pipelines are given and many x", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Oil tanker versus chemical tanker construction", "cross_family": true } ] }, { "qid": "KOC-2024-06-0350-Q007", "text": "Time period of roll formula", "family": "", "subtopic": "Static / Dynamic Stability", "tid": "KOC-2024-06-0350", "tray": "review", "candidates": [ { "answer_id": "BK-002", "score": 0.6832395792007446, "sibling_score": 0.6832395792007446, "answer_score": 0.33509246706962587, "sibling_qid": "KOL-2026-05-4185-Q004", "sibling_text": "period of roll", "sibling_family": "", "via": "sibling", "answer_title": "How does a bilge keel reduce rolling, and how does it relate to roll period and radius of gyration?", "cross_family": false }, { "answer_id": "PAR-ROLL-001", "score": 0.5967724323272705, "sibling_score": 0.5967724323272705, "answer_score": 0.31801555007696153, "sibling_qid": "KOL-2021-12-0578-Q003", "sibling_text": "parametric rolling relation between rolling and pitching periods", "sibling_family": "", "via": "sibling", "answer_title": "01. 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Parametric vs synchronous rolling (and the ‘sequential / prismatic’ variants)", "cross_family": false } ] }, { "qid": "KOC-2024-06-0350-Q008", "text": "Camber", "family": "SOLAS", "subtopic": "Deck Camber / Sheer", "tid": "KOC-2024-06-0350", "tray": "review", "candidates": [ { "answer_id": "KEEL-FRM-B-003", "score": 0.7376348376274109, "sibling_score": 0.7376348376274109, "answer_score": null, "sibling_qid": "KOC-2026-02-0804-Q007", "sibling_text": "camber", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Rise of floor, camber, deadrise & hull-form terms", "cross_family": false }, { "answer_id": "SHELL-PLT-B-001", "score": 0.5777966976165771, "sibling_score": 0.5777966976165771, "answer_score": null, "sibling_qid": "KOL-2017-01-0050-Q006", "sibling_text": "what is sheer stringer plate camber", "sibling_family": "", "via": "sibling", "answer_title": "Sheer strake — location, why strengthened, deck-edge / gunwale connection", "cross_family": false }, { "answer_id": "CAM-437-001", "score": 0.573265790939331, "sibling_score": 0.573265790939331, "answer_score": null, "sibling_qid": "KOC-2025-12-1081-Q001", "sibling_text": "function of cam", "sibling_family": "2-Stroke - 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Stern tube seals, integrity test, sleeve wasting and afloat repair", "cross_family": false } ] }, { "qid": "KOC-2024-06-0351-Q005", "text": "Bulbous bow construction draw and explain", "family": "", "subtopic": "Bulbous Bow", "tid": "KOC-2024-06-0351", "tray": "new", "candidates": [ { "answer_id": "PPS-230-006", "score": 0.5466406345367432, "sibling_score": 0.5466406345367432, "answer_score": 0.3949900969862938, "sibling_qid": "MUM-2026-02-0782-Q011", "sibling_text": "bulbous bow how it is connected to ship shape of bow", "sibling_family": "", "via": "sibling", "answer_title": "Fore-end / fore-peak structure: draw and describe", "cross_family": false }, { "answer_id": "FWFB-P02-005", "score": 0.4723604559898376, "sibling_score": null, "answer_score": 0.4723604559898376, "sibling_qid": "", "sibling_text": "other members breast hook bulb angle cross tie margin coffin shoe plates breast hook horizontal triangular plate bracket at the bow and aft tying the two sides across the centreline at the stem helps resist panting forward bulb angle bulb flat stiffener a flat bar with a rounded bulb on one edge for added stiffness without a separate flange shell deck and bulkhead stiffening", "sibling_family": "", "via": "answer_title", "answer_title": "Other members: breast hook, bulb angle, cross tie, margin / coffin / shoe plates", "cross_family": false }, { "answer_id": "BSBH-420-002", "score": 0.46351372003555297, "sibling_score": 0.44564908742904663, "answer_score": 0.46351372003555297, "sibling_qid": "KOC-2024-10-0421-Q001", "sibling_text": "draw cross section view fwd of collision bulkhead", "sibling_family": "", "via": "answer_title", "answer_title": "Fore-end / forepeak construction forward of the collision bulkhead — members and cross-section", "cross_family": false } ] }, { "qid": "KOC-2024-06-0352-Q003", "text": "E-orb. What all comes under it", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "KOC-2024-06-0352", "tray": "new", "candidates": [ { "answer_id": "ORB-IOPP-OWS-002", "score": 0.5842410326004028, "sibling_score": 0.5842410326004028, "answer_score": null, "sibling_qid": "CHE-2026-05-0543-Q003", "sibling_text": "orb in details", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "The Oil Record Book Part I — purpose, the letter codes, and how entries are made", "cross_family": false }, { "answer_id": "OWS-ORB-006", "score": 0.5832237005233765, "sibling_score": 0.5832237005233765, "answer_score": null, "sibling_qid": "MUM-2025-09-0447-Q007", "sibling_text": "orb entries", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "6. 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(Part E, regs 46–53)", "cross_family": false }, { "answer_id": "CO2-SYS-005", "score": 0.568845808506012, "sibling_score": 0.568845808506012, "answer_score": null, "sibling_qid": "KOC-2025-07-0633-Q038", "sibling_text": "fixed sys for engine room", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 system safeties, CO2-room requirements, alarms and ventilation", "cross_family": true } ] }, { "qid": "KOC-2024-06-0352-Q006", "text": "Stern frame diagram", "family": "Ship Construction & Stability", "subtopic": "Stern Frame / Transom", "tid": "KOC-2024-06-0352", "tray": "review", "candidates": [ { "answer_id": "DUS-P5-03", "score": 0.7875000238418579, "sibling_score": 0.7875000238418579, "answer_score": 0.5369671225547791, "sibling_qid": "KOC-2021-07-0010-Q005", "sibling_text": "stern frame diagram", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Stern frame construction, cross-section and rudder-axis sketch", "cross_family": true }, { "answer_id": "SPR-STERN-002", "score": 0.7321984767913818, "sibling_score": 0.7321984767913818, "answer_score": null, "sibling_qid": "KOC-2022-08-0083-Q001", "sibling_text": "draw stern frame show arrangement how stern tube is supported on fwd area of stern frame", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Propeller draw & dry-dock blade repair", "cross_family": true }, { "answer_id": "STS-P02-003", "score": 0.6778974533081055, "sibling_score": 0.6778974533081055, "answer_score": 0.5097008496522903, "sibling_qid": "KOC-2023-01-1806-Q011", "sibling_text": "stern tube diagram", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "STS-P02-03 - Stern tube arrangement, fitting in hull and shaft support", "cross_family": true } ] }, { "qid": "KOC-2024-06-0352-Q008", "text": "Orb code C and 11,12 all", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "KOC-2024-06-0352", "tray": "new", "candidates": [ { "answer_id": "OWS-ORB-006", "score": 0.5925238132476807, "sibling_score": 0.5925238132476807, "answer_score": null, "sibling_qid": "CHE-2026-05-0634-Q009", "sibling_text": "orb all codes", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "6. Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-002", "score": 0.4350647032260895, "sibling_score": 0.4350647032260895, "answer_score": null, "sibling_qid": "CHE-2026-05-0543-Q003", "sibling_text": "orb in details", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "The Oil Record Book Part I — purpose, the letter codes, and how entries are made", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-004", "score": 0.4302543103694916, "sibling_score": 0.4302543103694916, "answer_score": null, "sibling_qid": "KOC-2026-04-0901-Q013", "sibling_text": "orb weekly entry code and number", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Weekly ORB entries — the mandatory sludge retention record, the bunker entry, and what is voluntary", "cross_family": false } ] }, { "qid": "KOC-2024-06-0352-Q009", "text": "Enclosed space entry gas values: O2,CO2,CO,HC,H2S,Benzene", "family": "Risk & Safety Management", "subtopic": "Enclosed Space Entry", "tid": "KOC-2024-06-0352", "tray": "review", "candidates": [ { "answer_id": "ESE-P02-001", "score": 0.6872161626815796, "sibling_score": 0.6872161626815796, "answer_score": 0.49243239760398866, "sibling_qid": "KOC-2021-07-0018-Q004", "sibling_text": "enclosed space entry condition answer 21 oxygen hc gas less than 1 lel toxic gases less than 50 tlv what device use to check toxic gases he needs to hear dragen tupe", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "ESE-P02-01. Threshold limits, TLV and toxic-gas interpretation for entry", "cross_family": false }, { "answer_id": "ESE-P01-009", "score": 0.6843293309211731, "sibling_score": 0.6843293309211731, "answer_score": 0.5535972088575363, "sibling_qid": "KOL-2024-11-0879-Q002", "sibling_text": "o2 content and flammability is in range for all gases is the enclosed space safe to enter", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "Atmosphere checks, gases to test and safe entry limits", "cross_family": false }, { "answer_id": "ESE-P02-002", "score": 0.6820389628410339, "sibling_score": 0.6820389628410339, "answer_score": null, "sibling_qid": "KOC-2025-10-1583-Q008", "sibling_text": "enclosed space entry what all gas u check and values how o2analyser works", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "ESE-P02-02. Oxygen analyser: working principle and calibration", "cross_family": false } ] }, { "qid": "KOC-2024-06-0352-Q011", "text": "Which type of ship sailed? Chemical tanker", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2024-06-0352", "tray": "review", "candidates": [ { "answer_id": "IBC-BCH-B-004", "score": 0.8075332045555115, "sibling_score": 0.8075332045555115, "answer_score": null, "sibling_qid": "MUM-2026-05-3156-Q001", "sibling_text": "type of ships chemical tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Certificate of Fitness and MARPOL Annex II in practice", "cross_family": false }, { "answer_id": "BCH-IBC-A-001", "score": 0.7990393042564392, "sibling_score": 0.7990393042564392, "answer_score": 0.535636180639267, "sibling_qid": "CHE-2026-03-0128-Q001", "sibling_text": "type of chemical tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type 1, Type 2 and Type 3 chemical tankers — the ship-type classification", "cross_family": false }, { "answer_id": "COT-01", "score": 0.766117513179779, "sibling_score": 0.766117513179779, "answer_score": 0.5379040002822876, "sibling_qid": "KOC-2026-04-0892-Q003", "sibling_text": "type of ship sailed tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Oil-tanker types, definitions and cargo capability", "cross_family": false } ] }, { "qid": "KOC-2024-06-0353-Q005", "text": "Mlc all titles , dmlc1&dmlc2", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOC-2024-06-0353", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.6592139005661011, "sibling_score": 0.6592139005661011, "answer_score": 0.2836061418056488, "sibling_qid": "KOC-2026-05-2135-Q011", "sibling_text": "mlc titles explain title 1 explain dmlc part 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "IMO-CODES-P03-003", "score": 0.2973142102360725, "sibling_score": null, "answer_score": 0.2973142102360725, "sibling_qid": "", "sibling_text": "latest imo msc msc 108 109 110 and msc 111 outcomes", "sibling_family": "", "via": "answer_title", "answer_title": "Latest IMO/MSC: MSC 108, 109, 110 and MSC 111 outcomes", "cross_family": false }, { "answer_id": "ENG-NOM-006", "score": 0.26776182800531384, "sibling_score": null, "answer_score": 0.26776182800531384, "sibling_qid": "", "sibling_text": "short form asks smc c lmc and me vs mc quickly smc c super long stroke man programme camshaft controlled compact lmc l long stroke the l is the stroke letter not a control or compact letter", "sibling_family": "", "via": "answer_title", "answer_title": "Short-form asks: SMC-C, LMC, and ME vs MC quickly", "cross_family": false } ] }, { "qid": "KOC-2024-06-0353-Q006", "text": "Sms contents, dpa duties", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOC-2024-06-0353", "tray": "new", "candidates": [ { "answer_id": "SMSFR-002", "score": 0.6203400492668152, "sibling_score": 0.6203400492668152, "answer_score": null, "sibling_qid": "KOC-2022-03-0063-Q002", "sibling_text": "contents of sms", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the Safety Management System — the SMS manual, its contents, objectives, why it is needed onboard, and the company SMS policy?", "cross_family": false }, { "answer_id": "ISM-AUD-P02-004", "score": 0.619817316532135, "sibling_score": 0.619817316532135, "answer_score": 0.339368225634098, "sibling_qid": "MUM-2022-08-0033-Q001", "sibling_text": "contents of sms", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "SMS contents, manuals, documents and drill records onboard", "cross_family": false }, { "answer_id": "ISM-DPA-001", "score": 0.5590130686759949, "sibling_score": 0.5590130686759949, "answer_score": 0.29143103659152986, "sibling_qid": "KOC-2024-12-0493-Q005", "sibling_text": "duties of dpa", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Role, duties and responsibility of the Designated Person Ashore (DPA)", "cross_family": false } ] }, { "qid": "KOC-2024-06-1363-Q002", "text": ")How to order motor? Frame number?", "family": "Electrical - Motors & Starters", "subtopic": "Frame Number", "tid": "KOC-2024-06-1363", "tray": "review", "candidates": [ { "answer_id": "ELECTRICAL-M-A-01", "score": 0.7376766800880432, "sibling_score": 0.7376766800880432, "answer_score": 0.5527189493179321, "sibling_qid": "NOI-2026-09-0005-Q009", "sibling_text": "frame number of motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Motor Frame Number", "cross_family": false }, { "answer_id": "BRG-NOM-001", "score": 0.6812167763710022, "sibling_score": 0.6812167763710022, "answer_score": 0.37184184044599533, "sibling_qid": "NOI-2026-09-0015-Q005", "sibling_text": "how to order motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Bearing Numbers, Suffixes and What to State When Ordering", "cross_family": false }, { "answer_id": "IP-ENCL-001", "score": 0.5739015936851501, "sibling_score": 0.5739015936851501, "answer_score": null, "sibling_qid": "MUM-2026-01-1899-Q009", "sibling_text": "motor number of terminal", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "IP rating of motors — what the numbers mean", "cross_family": false } ] }, { "qid": "KOC-2024-06-1364-Q005", "text": "How to order motor? What is frame size?", "family": "Electrical - Motors & Starters", "subtopic": "Frame Number", "tid": "KOC-2024-06-1364", "tray": "review", "candidates": [ { "answer_id": "ELECTRICAL-M-A-01", "score": 0.675626814365387, "sibling_score": 0.675626814365387, "answer_score": 0.48562022447586056, "sibling_qid": "NOI-2026-09-0005-Q009", "sibling_text": "frame number of motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Motor Frame Number", "cross_family": false }, { "answer_id": "BRG-NOM-001", "score": 0.6697385907173157, "sibling_score": 0.6697385907173157, "answer_score": null, "sibling_qid": "MUM-2026-09-3984-Q011", "sibling_text": "specification of motor how to order a motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Bearing Numbers, Suffixes and What to State When Ordering", "cross_family": false }, { "answer_id": "SGM-ELEC-002", "score": 0.425824961066246, "sibling_score": null, "answer_score": 0.425824961066246, "sibling_qid": "", "sibling_text": "what type of motor is the steering gear motor how does it differ from other engine room motors and how do you order one three phase squirrel cage induction motor duty rating and designation per the approved nameplate maker generously rated with high starting and pull out stall torque no overload trip overload alarm only solas ii 1 reg 30 must tolerate overload and stall without being disconnected ", "sibling_family": "", "via": "answer_title", "answer_title": "What type of motor is the steering gear motor, how does it differ from other engine-room motors, and how do you order one?", "cross_family": false } ] }, { "qid": "KOC-2024-06-1365-Q002", "text": "3 point STARTER Explain with drawing", "family": "Electrical - Motors & Starters", "subtopic": "DC Motor Three-Point Starter", "tid": "KOC-2024-06-1365", "tray": "review", "candidates": [ { "answer_id": "STR-DEC-A-001", "score": 0.7135648131370544, "sibling_score": 0.7135648131370544, "answer_score": null, "sibling_qid": "KOC-2026-05-2133-Q010", "sibling_text": "draw and explain 3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "SDST-A-001", "score": 0.632308840751648, "sibling_score": 0.632308840751648, "answer_score": 0.39548308253288267, "sibling_qid": "KOC-2026-02-1701-Q005", "sibling_text": "three point starter diagram with explanation", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false }, { "answer_id": "STARTER-DEC-B-003", "score": 0.6070929765701294, "sibling_score": 0.6070929765701294, "answer_score": null, "sibling_qid": "KOC-2023-04-1255-Q006", "sibling_text": "dol starter 3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "DOL starter — use, current, range and limits", "cross_family": false } ] }, { "qid": "KOC-2024-06-1365-Q008", "text": "provison crane trip reasons", "family": "Electrical - Motors & Starters", "subtopic": "Windlass / Crane Motor", "tid": "KOC-2024-06-1365", "tray": "review", "candidates": [ { "answer_id": "CRANE-EMBRK-003", "score": 0.6981446146965027, "sibling_score": 0.6981446146965027, "answer_score": 0.4725264310836792, "sibling_qid": "KOC-2026-05-2139-Q011", "sibling_text": "provisional crane slipping electrical reason", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Electrical causes of provision / deck crane brake slipping (single-phasing and brake-circuit faults)", "cross_family": false }, { "answer_id": "CRANE-ER-006", "score": 0.6859683990478516, "sibling_score": 0.6859683990478516, "answer_score": 0.5118457078933716, "sibling_qid": "KOC-2022-09-0095-Q007", "sibling_text": "provision crane slipping reasons", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Likely reasons for a provision crane slipping", "cross_family": true }, { "answer_id": "WCM-P02-001", "score": 0.674831211566925, "sibling_score": 0.674831211566925, "answer_score": 0.4378101766109466, "sibling_qid": "KOL-2024-12-2752-Q004", "sibling_text": "deck crane trips", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Safeties and trips on ship's cranes (deck, cargo, provision, engine-room)", "cross_family": false } ] }, { "qid": "KOC-2024-06-1365-Q015", "text": "Motor terminal diagram explain", "family": "Electrical - Motors & Starters", "subtopic": "Motor Terminals / Connections", "tid": "KOC-2024-06-1365", "tray": "review", "candidates": [ { "answer_id": "IP-ENCL-001", "score": 0.7518674731254578, "sibling_score": 0.7518674731254578, "answer_score": null, "sibling_qid": "MUM-2026-01-1899-Q009", "sibling_text": "motor number of terminal", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "IP rating of motors — what the numbers mean", "cross_family": false }, { "answer_id": "CONT-317-003", "score": 0.7487408518791199, "sibling_score": 0.7487408518791199, "answer_score": 0.5276498198509216, "sibling_qid": "MUM-2026-05-3170-Q005", "sibling_text": "motor came after rewinding no all terminals signs erased how will you connect", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Continuity to confirm terminal identity after overhaul or rewind", "cross_family": false }, { "answer_id": "SOFTSTART-P02-002", "score": 0.7140238881111145, "sibling_score": 0.7140238881111145, "answer_score": null, "sibling_qid": "KOL-2016-10-2075-Q003", "sibling_text": "draw terminal box dia for latest induction motor soft start motors", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Soft starter circuit — draw and explain", "cross_family": false } ] }, { "qid": "KOC-2024-06-1367-Q009", "text": "Draw DO transfer pump circuit diagram with control circuit showing auto start and explain the circuit ?", "family": "Electrical - Motors & Starters", "subtopic": "Starter Panel / Control Circuit", "tid": "KOC-2024-06-1367", "tray": "review", "candidates": [ { "answer_id": "AUTOTX-STR-001", "score": 0.6745800375938416, "sibling_score": 0.6745800375938416, "answer_score": null, "sibling_qid": "KOC-2025-03-1518-Q001", "sibling_text": "draw auto transformer starter circuit", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "1. Draw, construct and explain the auto-transformer starter", "cross_family": false }, { "answer_id": "FIRE-P01-01", "score": 0.6434444189071655, "sibling_score": 0.6434444189071655, "answer_score": null, "sibling_qid": "KOC-2021-11-0034-Q005", "sibling_text": "he want drawing with control cabinet ie dotted line represnting start signal of pump emergency source of supply just keep talking abt the sytem", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist / water-mist system — draw and explain the machinery-space arrangement and normal working", "cross_family": true }, { "answer_id": "SDST-A-001", "score": 0.6430881023406982, "sibling_score": 0.6430881023406982, "answer_score": null, "sibling_qid": "KOC-2023-07-1266-Q001", "sibling_text": "draw star delta starter with control circuit", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false } ] }, { "qid": "KOC-2024-06-1843-Q002", "text": "Bottom end bearing removal", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Bottom End Bearing", "tid": "KOC-2024-06-1843", "tray": "review", "candidates": [ { "answer_id": "BEB-A-001", "score": 0.8104472756385803, "sibling_score": 0.8104472756385803, "answer_score": 0.5742624253034592, "sibling_qid": "KOL-2022-07-3557-Q001", "sibling_text": "bottom end bearing removal", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Removing, overhauling, inspecting and refitting the bottom end bearing", "cross_family": false }, { "answer_id": "MN-BRG-C-001", "score": 0.7876505255699158, "sibling_score": 0.7876505255699158, "answer_score": null, "sibling_qid": "KOL-2026-09-4293-Q011", "sibling_text": "bottom end bearing top shell removal process", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Opening, removing and overhauling a main bearing", "cross_family": false }, { "answer_id": "MAIN-BRG-B-001", "score": 0.7648355960845947, "sibling_score": 0.7648355960845947, "answer_score": null, "sibling_qid": "KOC-2026-05-0012-Q006", "sibling_text": "removal of bottom part of main bearing full process", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you open up / remove / overhaul a main-engine main bearing?", "cross_family": false } ] }, { "qid": "KOC-2024-06-1843-Q003", "text": "safety valve setting procedure.diagram of top portion of safety valve", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2024-06-1843", "tray": "review", "candidates": [ { "answer_id": "ECON-EGB-004", "score": 0.7549176812171936, "sibling_score": 0.7549176812171936, "answer_score": 0.5376963794231414, "sibling_qid": "KOL-2026-02-3912-Q003", "sibling_text": "safety valve setting procedure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Safety-valve setting after overhaul & why set higher than the boiler", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.7535449266433716, "sibling_score": 0.7535449266433716, "answer_score": null, "sibling_qid": "KOC-2026-05-2142-Q008", "sibling_text": "safety valve setting in front of surveyor", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.7278884053230286, "sibling_score": 0.7278884053230286, "answer_score": null, "sibling_qid": "KOC-2026-05-0003-Q005", "sibling_text": "boiler safety valve setting procedure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false } ] }, { "qid": "KOC-2024-06-2049-Q004", "text": "What is an octane number? What is cetane number? How much for your engine?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Quality / CCAI", "tid": "KOC-2024-06-2049", "tray": "review", "candidates": [ { "answer_id": "FQCC-583-B-005", "score": 0.7362198829650879, "sibling_score": 0.7362198829650879, "answer_score": 0.5856240689754486, "sibling_qid": "KOC-2023-08-0983-Q001", "sibling_text": "cetane no octane no", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Cetane number, octane number and fuel ignition quality — why no cetane number for residual fuels?", "cross_family": false }, { "answer_id": "FQCC-583-A-001", "score": 0.7038088440895081, "sibling_score": 0.7038088440895081, "answer_score": 0.4407672792673111, "sibling_qid": "MUM-2026-06-3450-Q011", "sibling_text": "what is octane cetane and ccai", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "CCAI — what it is, how it is calculated, and what it is really for", "cross_family": false }, { "answer_id": "BDI-469-001", "score": 0.5854259729385376, "sibling_score": 0.5854259729385376, "answer_score": null, "sibling_qid": "MUM-2024-07-1084-Q011", "sibling_text": "fuel density from 91 to 95", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "New bunker density is higher or different from the previous fuel — your actions", "cross_family": true } ] }, { "qid": "KOC-2024-06-2049-Q008", "text": "Explain the Boiler expansion Arrangement?", "family": "Heat Exchangers & Coolers", "subtopic": "Expansion Arrangement", "tid": "KOC-2024-06-2049", "tray": "review", "candidates": [ { "answer_id": "BLR-TUBE-P01-003", "score": 0.760036051273346, "sibling_score": 0.760036051273346, "answer_score": 0.5423304587602615, "sibling_qid": "CHE-2026-05-0613-Q004", "sibling_text": "expansion arrangement boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "02. Thermal expansion arrangements for boiler tubes", "cross_family": true }, { "answer_id": "BLR-TUBE-P02-001", "score": 0.6312793493270874, "sibling_score": 0.6312793493270874, "answer_score": null, "sibling_qid": "KOL-2018-01-1347-Q005", "sibling_text": "how is expansion of tubes accomodated in boilers ege how is leakage prevented in such an arrangement due to expansion", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Identifying a boiler tube leak and finding the leaking tube", "cross_family": true }, { "answer_id": "BLR-DRUM-004", "score": 0.598265990614891, "sibling_score": null, "answer_score": 0.598265990614891, "sibling_qid": "", "sibling_text": "boiler drum expansion arrangements boiler heats from cold to operating temperature drums and tubes expand they must expand freely or the structure cracks principle one fixed anchored point the rest free to slide", "sibling_family": "", "via": "answer_title", "answer_title": "Boiler-drum expansion arrangements", "cross_family": false } ] }, { "qid": "KOC-2024-07-0356-Q012", "text": "Type of ship and type of tank", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2024-07-0356", "tray": "review", "candidates": [ { "answer_id": "LLST-AB-001", "score": 0.7346072793006897, "sibling_score": 0.7346072793006897, "answer_score": 0.4436775684356689, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.6998905539512634, "sibling_score": 0.6998905539512634, "answer_score": null, "sibling_qid": "MUM-2026-05-3002-Q001", "sibling_text": "type of ship and all", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.4686589479446411, "sibling_score": null, "answer_score": 0.4686589479446411, "sibling_qid": "", "sibling_text": "type b 60 and b 100 ships meaning difference basis and examples", "sibling_family": "", "via": "answer_title", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "KOC-2024-07-0356-Q013", "text": "Asked about cargoes carried onboard and when i said that we used to mix propane and butane, he asked about the compressor parameters during mixing", "family": "Cargo Ops - Gas Carriers", "subtopic": "Cargo Compressor", "tid": "KOC-2024-07-0356", "tray": "review", "candidates": [ { "answer_id": "LPG-LNG-009", "score": 0.7036047577857971, "sibling_score": 0.7036047577857971, "answer_score": 0.5369300365447998, "sibling_qid": "KOC-2022-01-0949-Q006", "sibling_text": "lpg compressor room propane vs butane difference", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Gas-carrier fundamentals and ship-specific traps", "cross_family": false }, { "answer_id": "IGC-IGF-011", "score": 0.6814025640487671, "sibling_score": 0.6814025640487671, "answer_score": 0.48144277930259705, "sibling_qid": "KOL-2023-07-4025-Q003", "sibling_text": "what cargo you have carried carriage temperatures of propane and butane", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Carriage temperatures — propane, butane and LNG", "cross_family": true }, { "answer_id": "BLEVE-BOG-004", "score": 0.6729089617729187, "sibling_score": 0.6729089617729187, "answer_score": null, "sibling_qid": "CHE-2026-02-0115-Q003", "sibling_text": "how to you maintain gas vapour from tank i explained about the lng carriers in my vessel but he was expecting a re liquefaction plant from lpg", "sibling_family": "Cargo Ops - 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Tankers", "via": "sibling", "answer_title": "The midship section — shell members you must mark", "cross_family": false } ] }, { "qid": "KOC-2024-07-0364-Q014", "text": "Bilge keel effect on radius of gyration, radius of gyration and time period of roll and it's equation", "family": "", "subtopic": "Static / Dynamic Stability", "tid": "KOC-2024-07-0364", "tray": "review", "candidates": [ { "answer_id": "BK-002", "score": 0.7748487591743469, "sibling_score": 0.7748487591743469, "answer_score": 0.6501151710748673, "sibling_qid": "KOC-2025-06-0605-Q004", "sibling_text": "bilge keel function relation b w radius of gyration and time period of roll how bilge keel affects period of roll", "sibling_family": "", "via": "sibling", "answer_title": "How does a bilge keel reduce rolling, and how does it relate to roll period and radius of gyration?", "cross_family": false }, { "answer_id": "BK-005", "score": 0.7001330852508545, "sibling_score": 0.7001330852508545, "answer_score": null, "sibling_qid": "KOC-2025-12-0772-Q002", "sibling_text": "transverse section of tanker bilge keel mark camber turn of bilge rise of floor gunwhale how bilge keel reduces rolling timeperiod eqn bilgekeel and radius of gyration equation", "sibling_family": "", "via": "sibling", "answer_title": "Where is the bilge keel shown on a ship cross-section or midship-section drawing?", "cross_family": false }, { "answer_id": "STF-TND-P03-001", "score": 0.555304279923439, "sibling_score": null, "answer_score": 0.555304279923439, "sibling_qid": "", "sibling_text": "stiff and tender ships what they are and how gm drives behaviour gm km kg the lever ofinitialstability small angles up to about 10 stiff large gm tender small gm rolling period t 2 k g gm with k the transverse roll radius of gyration 0 35 0 40 b so period varies as 1 gm large gm short period stiff small gm long period tender", "sibling_family": "", "via": "answer_title", "answer_title": "Stiff and tender ships — what they are and how GM drives behaviour", "cross_family": false } ] }, { "qid": "KOC-2024-07-0364-Q015", "text": "So what happens to time of roll when bilge keel fitted?", "family": "", "subtopic": "Static / Dynamic Stability", "tid": "KOC-2024-07-0364", "tray": "new", "candidates": [ { "answer_id": "BK-002", "score": 0.6245097517967224, "sibling_score": 0.6245097517967224, "answer_score": 0.5229178577661514, "sibling_qid": "KOC-2026-03-0882-Q006", "sibling_text": "relation between time period of roll and bilge keel", "sibling_family": "", "via": "sibling", "answer_title": "How does a bilge keel reduce rolling, and how does it relate to roll period and radius of gyration?", "cross_family": false }, { "answer_id": "BK-005", "score": 0.5710998773574829, "sibling_score": 0.5710998773574829, "answer_score": null, "sibling_qid": "KOC-2025-12-0761-Q002", "sibling_text": "transverse section of tanker bilge keel how longitudinals are supported mark camber turn of bilge rise of floor gunwhale only bulk carrier have gunwhale tankers not present how bilge keel reduces rolling timeperiod eqn bilgekeel and radius of gyration relation said timeperiod increases and amplitude f roll decreases", "sibling_family": "", "via": "sibling", "answer_title": "Where is the bilge keel shown on a ship cross-section or midship-section drawing?", "cross_family": false }, { "answer_id": "BK-003", "score": 0.5690831542015076, "sibling_score": 0.5690831542015076, "answer_score": null, "sibling_qid": "KOC-2025-11-0721-Q004", "sibling_text": "period of roll bilge keel definition bilge keel requirements if protection limit exceeds what happens", "sibling_family": "", "via": "sibling", "answer_title": "What are the bilge-keel design, length, depth and protrusion requirements?", "cross_family": false } ] }, { "qid": "KOC-2024-07-0364-Q023", "text": "What kind of rudder u had in ur ship? Anyother types u hav seen? What is the benefits of semi balanced rudder?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOC-2024-07-0364", "tray": "new", "candidates": [ { "answer_id": "SPR-STERN-006", "score": 0.6071974635124207, "sibling_score": 0.6071974635124207, "answer_score": null, "sibling_qid": "MUM-2026-09-3951-Q002", "sibling_text": "types of rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Propeller types & special propulsors", "cross_family": false }, { "answer_id": "SG-RAM-001", "score": 0.5986360311508179, "sibling_score": 0.5986360311508179, "answer_score": null, "sibling_qid": "KOL-2022-10-1714-Q002", "sibling_text": "type of steering in your ship 4ram one ram crack in 2 ram steering gear i told there is duplication of system but earlier days auxiliary steering gears were used", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Two-ram steering gear — a ram or cylinder cracks, leaks, seizes or ruptures: how do you keep steering?", "cross_family": false }, { "answer_id": "SPR-STERN-004", "score": 0.5949563384056091, "sibling_score": 0.5949563384056091, "answer_score": null, "sibling_qid": "MUM-2026-04-0894-Q003", "sibling_text": "what type of rudder i said semi balanced double plated rudder angle of attack stall angle", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Propeller rake & skew", "cross_family": true } ] }, { "qid": "KOC-2024-07-0367-Q008", "text": "Like camber function", "family": "SOLAS", "subtopic": "Deck Camber / Sheer", "tid": "KOC-2024-07-0367", "tray": "review", "candidates": [ { "answer_id": "KEEL-FRM-B-003", "score": 0.652920663356781, "sibling_score": 0.652920663356781, "answer_score": null, "sibling_qid": "KOC-2026-02-0804-Q007", "sibling_text": "camber", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Rise of floor, camber, deadrise & hull-form terms", "cross_family": false }, { "answer_id": "CAM-437-001", "score": 0.6153216361999512, "sibling_score": 0.6153216361999512, "answer_score": null, "sibling_qid": "KOC-2025-04-1037-Q002", "sibling_text": "cam function", "sibling_family": "2-Stroke - 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Tankers", "via": "sibling", "answer_title": "The midship section — shell members you must mark", "cross_family": false } ] }, { "qid": "KOC-2024-07-0367-Q013", "text": "Bilge keel effect on radius of gyration, radius of gyration and time period of roll and it's equation", "family": "", "subtopic": "Static / Dynamic Stability", "tid": "KOC-2024-07-0367", "tray": "review", "candidates": [ { "answer_id": "BK-002", "score": 0.7748487591743469, "sibling_score": 0.7748487591743469, "answer_score": 0.6501151204109191, "sibling_qid": "KOC-2025-06-0605-Q004", "sibling_text": "bilge keel function relation b w radius of gyration and time period of roll how bilge keel affects period of roll", "sibling_family": "", "via": "sibling", "answer_title": "How does a bilge keel reduce rolling, and how does it relate to roll period and radius of gyration?", "cross_family": false }, { "answer_id": "BK-005", "score": 0.7001330256462097, "sibling_score": 0.7001330256462097, "answer_score": null, "sibling_qid": "KOC-2025-12-0772-Q002", "sibling_text": "transverse section of tanker bilge keel mark camber turn of bilge rise of floor gunwhale how bilge keel reduces rolling timeperiod eqn bilgekeel and radius of gyration equation", "sibling_family": "", "via": "sibling", "answer_title": "Where is the bilge keel shown on a ship cross-section or midship-section drawing?", "cross_family": false }, { "answer_id": "STF-TND-P03-001", "score": 0.555304229259491, "sibling_score": null, "answer_score": 0.555304229259491, "sibling_qid": "", "sibling_text": "stiff and tender ships what they are and how gm drives behaviour gm km kg the lever ofinitialstability small angles up to about 10 stiff large gm tender small gm rolling period t 2 k g gm with k the transverse roll radius of gyration 0 35 0 40 b so period varies as 1 gm large gm short period stiff small gm long period tender", "sibling_family": "", "via": "answer_title", "answer_title": "Stiff and tender ships — what they are and how GM drives behaviour", "cross_family": false } ] }, { "qid": "KOC-2024-07-0367-Q014", "text": "So what happens to time of roll when bilge keel fitted?", "family": "", "subtopic": "Static / Dynamic Stability", "tid": "KOC-2024-07-0367", "tray": "new", "candidates": [ { "answer_id": "BK-002", "score": 0.6245097517967224, "sibling_score": 0.6245097517967224, "answer_score": 0.5229178577661514, "sibling_qid": "KOC-2026-03-0882-Q006", "sibling_text": "relation between time period of roll and bilge keel", "sibling_family": "", "via": "sibling", "answer_title": "How does a bilge keel reduce rolling, and how does it relate to roll period and radius of gyration?", "cross_family": false }, { "answer_id": "BK-005", "score": 0.5710998773574829, "sibling_score": 0.5710998773574829, "answer_score": null, "sibling_qid": "KOC-2025-12-0761-Q002", "sibling_text": "transverse section of tanker bilge keel how longitudinals are supported mark camber turn of bilge rise of floor gunwhale only bulk carrier have gunwhale tankers not present how bilge keel reduces rolling timeperiod eqn bilgekeel and radius of gyration relation said timeperiod increases and amplitude f roll decreases", "sibling_family": "", "via": "sibling", "answer_title": "Where is the bilge keel shown on a ship cross-section or midship-section drawing?", "cross_family": false }, { "answer_id": "BK-003", "score": 0.5690830945968628, "sibling_score": 0.5690830945968628, "answer_score": null, "sibling_qid": "KOC-2025-11-0721-Q004", "sibling_text": "period of roll bilge keel definition bilge keel requirements if protection limit exceeds what happens", "sibling_family": "", "via": "sibling", "answer_title": "What are the bilge-keel design, length, depth and protrusion requirements?", "cross_family": false } ] }, { "qid": "KOC-2024-07-0369-Q005", "text": "Part D in ORD , what is D13,14,15", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "KOC-2024-07-0369", "tray": "new", "candidates": [ { "answer_id": "BWM-D1D2-P04-002", "score": 0.4253849387168884, "sibling_score": 0.4253849387168884, "answer_score": null, "sibling_qid": "KOC-2022-01-0048-Q013", "sibling_text": "bwms code explain d1 d2 d4", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "D-2 standard and the BWMS Code (ex-G8) — type approval of treatment systems", "cross_family": true }, { "answer_id": "BWMS-A-002", "score": 0.4162820279598236, "sibling_score": 0.4162820279598236, "answer_score": null, "sibling_qid": "KOL-2023-04-0742-Q001", "sibling_text": "what is d1 d2 d3 standard", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "D-1 versus D-2: the two ballast water standards", "cross_family": true }, { "answer_id": "BWM-D1D2-P02-001", "score": 0.3933984637260437, "sibling_score": 0.3933984637260437, "answer_score": null, "sibling_qid": "KOL-2025-08-1016-Q002", "sibling_text": "d1 d2 standard", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Regulation D-1 — ballast water exchange standard and the accepted methods", "cross_family": true } ] }, { "qid": "KOC-2024-07-0369-Q010", "text": "Type of diodes", "family": "Electrical - Generator & Alternator", "subtopic": "Diode Short / Open", "tid": "KOC-2024-07-0369", "tray": "review", "candidates": [ { "answer_id": "EPC-P01-02", "score": 0.7330266237258911, "sibling_score": 0.7330266237258911, "answer_score": 0.5373390972614288, "sibling_qid": "KOC-2026-02-1715-Q004", "sibling_text": "type of diodes", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Types of diodes, and where diodes are used on board", "cross_family": true }, { "answer_id": "EPC-P02-01", "score": 0.6673778891563416, "sibling_score": 0.6673778891563416, "answer_score": null, "sibling_qid": "CHE-2026-05-0534-Q004", "sibling_text": "diode zener diode", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "What is a zener diode? Draw its symbol, explain its working principle, and draw and explain its characteristic curve including the zener (breakdown) voltage.", "cross_family": false }, { "answer_id": "EPC-P01-01", "score": 0.44431978464126587, "sibling_score": null, "answer_score": 0.44431978464126587, "sibling_qid": "", "sibling_text": "what is a diode symbol forward and reverse bias and the characteristic curve symbol arrowhead anode into bar cathode the arrow is the direction of conventional current when conducting forward bias barrier opposed depletion narrows conduction after the knee 0 7 v silicon 0 3 v germanium representative varying with device current and temperature", "sibling_family": "", "via": "answer_title", "answer_title": "What is a diode? Symbol, forward and reverse bias, and the characteristic curve", "cross_family": false } ] }, { "qid": "KOC-2024-07-0370-Q003", "text": "rudder carrier bearing diagram", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOC-2024-07-0370", "tray": "review", "candidates": [ { "answer_id": "TRS-002", "score": 0.7433024644851685, "sibling_score": 0.7433024644851685, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "PRE-TEN-001", "score": 0.7323412299156189, "sibling_score": 0.7323412299156189, "answer_score": null, "sibling_qid": "MUM-2026-06-3504-Q007", "sibling_text": "rudder carrier bearing removal procedure", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Pre-stressing and pre-tensioning in main-engine bolting", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.6869688034057617, "sibling_score": 0.6869688034057617, "answer_score": 0.49472808241844174, "sibling_qid": "CHE-2026-02-0110-Q006", "sibling_text": "how rudder weight is carried key ans i said carrier bearing how it carrying explain", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false } ] }, { "qid": "KOC-2024-07-0370-Q008", "text": "Draw three point starter", "family": "Electrical - Motors & Starters", "subtopic": "DC Motor Three-Point Starter", "tid": "KOC-2024-07-0370", "tray": "review", "candidates": [ { "answer_id": "STR-DEC-A-001", "score": 0.7572277784347534, "sibling_score": 0.7572277784347534, "answer_score": null, "sibling_qid": "KOC-2026-05-2133-Q010", "sibling_text": "draw and explain 3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "STARTER-DEC-B-003", "score": 0.6680259108543396, "sibling_score": 0.6680259108543396, "answer_score": null, "sibling_qid": "KOC-2023-04-1255-Q006", "sibling_text": "dol starter 3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "DOL starter — use, current, range and limits", "cross_family": false }, { "answer_id": "SDST-A-001", "score": 0.6294894218444824, "sibling_score": 0.6294894218444824, "answer_score": 0.3457674875855446, "sibling_qid": "KOC-2024-10-1407-Q001", "sibling_text": "draw star delta starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false } ] }, { "qid": "KOC-2024-07-0370-Q011", "text": "gangway motor tripping reason", "family": "Electrical - Motors & Starters", "subtopic": "Motor Not Starting", "tid": "KOC-2024-07-0370", "tray": "review", "candidates": [ { "answer_id": "MNS-009", "score": 0.8203778266906738, "sibling_score": 0.8203778266906738, "answer_score": 0.50044966340065, "sibling_qid": "KOC-2025-10-1597-Q004", "sibling_text": "gangway motor tripping electrical reasons", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Motor trips on starting, or immediately after — electrical reasons and your checks", "cross_family": false }, { "answer_id": "MNS-004", "score": 0.5192717254161835, "sibling_score": null, "answer_score": 0.5192717254161835, "sibling_qid": "", "sibling_text": "motor starts and then stops again and again frequent start stop cycling on a gangway motor it started so supply fuses and main path are broadly sound that narrows the tree immediately overload relay cutting in on each start and self resetting on cooling is the classic cycling cause", "sibling_family": "", "via": "answer_title", "answer_title": "Motor starts and then stops, again and again — frequent start/stop cycling on a gangway motor", "cross_family": false }, { "answer_id": "AUX-CRANE-005", "score": 0.48390535116195676, "sibling_score": null, "answer_score": 0.48390535116195676, "sibling_qid": "", "sibling_text": "causes of deck crane trips and how to investigate and repair deck crane faults protection trips overload load exceeds swl at radius motor thermal overcurrent hydraulic over pressure or low level oil over temperature limit switch reached emergency stop supply control faults low or lost control voltage phase failure imbalance blown fuse dropped out contactor brake fault", "sibling_family": "", "via": "answer_title", "answer_title": "Causes of deck crane trips, and how to investigate and repair deck crane faults", "cross_family": false } ] }, { "qid": "KOC-2024-07-0997-Q008", "text": "Draw cylinder relief valve for main engine. he asked to show him where is pressure venting out to atmosphere.? i drew a port hole on the casing and then asked me to show the location of pressure adjusting nut", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Cover / Head", "tid": "KOC-2024-07-0997", "tray": "review", "candidates": [ { "answer_id": "SAV-001", "score": 0.7449678778648376, "sibling_score": 0.7449678778648376, "answer_score": null, "sibling_qid": "MUM-2026-03-2935-Q005", "sibling_text": "cylinder head safety valve of main engine diagram", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Construction and working of the main automatic starting air valve", "cross_family": false }, { "answer_id": "CCE-322-004", "score": 0.7054790258407593, "sibling_score": 0.7054790258407593, "answer_score": null, "sibling_qid": "KOC-2026-05-2129-Q013", "sibling_text": "told me that no cylinder relief valve on me b engines then safety for high pressures in cylinder", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Preventive measures and safety devices", "cross_family": false }, { "answer_id": "FFF-A-003", "score": 0.7053095102310181, "sibling_score": 0.7053095102310181, "answer_score": null, "sibling_qid": "CHE-2026-04-0170-Q001S8", "sibling_text": "cylinder relief valve construction", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fire main, hydrants, isolating and deck valves, and fire-line fittings", "cross_family": true } ] }, { "qid": "KOC-2024-07-1000-Q001", "text": "Which company nd what kind of ships done", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2024-07-1000", "tray": "review", "candidates": [ { "answer_id": "LLST-AB-002", "score": 0.7192701697349548, "sibling_score": 0.7192701697349548, "answer_score": 0.4079310119152069, "sibling_qid": "KOC-2026-03-0873-Q001", "sibling_text": "type of ship company", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.6762862801551819, "sibling_score": 0.6762862801551819, "answer_score": null, "sibling_qid": "MUM-2026-02-1280-Q001", "sibling_text": "type of ship done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "SOLAS12-BC-A-001", "score": 0.6609939932823181, "sibling_score": 0.6609939932823181, "answer_score": null, "sibling_qid": "MUM-2026-04-2958-Q001", "sibling_text": "ship done bulk carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "SOLAS definition and scope of a bulk carrier", "cross_family": false } ] }, { "qid": "KOC-2024-07-1000-Q008", "text": "Liner wears", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "KOC-2024-07-1000", "tray": "review", "candidates": [ { "answer_id": "CYL-LINER-P02-003", "score": 0.7269008159637451, "sibling_score": 0.7269008159637451, "answer_score": null, "sibling_qid": "MUM-2025-06-1136-Q005", "sibling_text": "liner wear", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L3 · T044-PART_02-G003High", "cross_family": false }, { "answer_id": "CYL-LINER-P02-005", "score": 0.7194779515266418, "sibling_score": 0.7194779515266418, "answer_score": null, "sibling_qid": "MUM-2023-09-2747-Q014", "sibling_text": "liner wear one unit reason", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L5 · T044-PART_02-G005High", "cross_family": false }, { "answer_id": "CYL-LINER-P04-002", "score": 0.6206579804420471, "sibling_score": 0.6206579804420471, "answer_score": null, "sibling_qid": "MUM-2026-09-3959-Q003", "sibling_text": "liner when you will replaced", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Judging, measuring, removing & discarding a cylinder liner", "cross_family": false } ] }, { "qid": "KOC-2024-07-1368-Q001", "text": "How arcing is prevented in the High Voltage Circuit breaker", "family": "", "subtopic": "Circuit Breakers (ACB / VCB / SF6)", "tid": "KOC-2024-07-1368", "tray": "review", "candidates": [ { "answer_id": "CBR-ARC-G-001", "score": 0.6841536164283752, "sibling_score": 0.6841536164283752, "answer_score": null, "sibling_qid": "KOC-2023-12-1310-Q002", "sibling_text": "high voltage circuit breaker types how arc minimized", "sibling_family": "", "via": "sibling", "answer_title": "Arc formation, arc quenching and arc-blast hazard", "cross_family": false }, { "answer_id": "HV-SYS-P06-003", "score": 0.6054269075393677, "sibling_score": 0.6054269075393677, "answer_score": 0.45907844603061676, "sibling_qid": "KOC-2024-10-1410-Q006", "sibling_text": "how arking prevents in high voltage and low voltage", "sibling_family": "", "via": "sibling", "answer_title": "Arc flash, arc blast and arcing control in HV systems", "cross_family": false }, { "answer_id": "T038-P01-002", "score": 0.5811959505081177, "sibling_score": 0.5811959505081177, "answer_score": null, "sibling_qid": "KOC-2024-07-1368-Q009", "sibling_text": "what is difference in arrangement to prevent arc in low and high voltage system", "sibling_family": "", "via": "sibling", "answer_title": "HV system onboard — layout, components, applications, earthing & protection", "cross_family": false } ] }, { "qid": "KOC-2024-07-1369-Q002", "text": "Three-point starter diagram explain", "family": "Electrical - Motors & Starters", "subtopic": "DC Motor Three-Point Starter", "tid": "KOC-2024-07-1369", "tray": "review", "candidates": [ { "answer_id": "SDST-A-001", "score": 0.7979992032051086, "sibling_score": 0.7979992032051086, "answer_score": 0.5165879547595977, "sibling_qid": "KOC-2026-02-1701-Q005", "sibling_text": "three point starter diagram with explanation", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false }, { "answer_id": "SDC-005", "score": 0.4942296504974365, "sibling_score": null, "answer_score": 0.4942296504974365, "sibling_qid": "", "sibling_text": "draw the delta connection three windings joined end to start in a closed loop a triangle line leads r y b taken from the three corners junctions", "sibling_family": "", "via": "answer_title", "answer_title": "Draw the delta connection", "cross_family": false }, { "answer_id": "SDST-B-001", "score": 0.492358073592186, "sibling_score": null, "answer_score": 0.492358073592186, "sibling_qid": "", "sibling_text": "explain the star delta control circuit timer interlocks changeover and how the switching point is chosen start path includes stop contact overload contact start button main hold in auxiliary star delta electrical interlocks and timer main and star energise for start timer begins timing main auxiliary seals the circuit", "sibling_family": "", "via": "answer_title", "answer_title": "Explain the star-delta control circuit - timer, interlocks, changeover and how the switching point is chosen.", "cross_family": false } ] }, { "qid": "KOC-2024-07-1371-Q005", "text": "How to order motor", "family": "Electrical - Motors & Starters", "subtopic": "Motor Specification / Ordering", "tid": "KOC-2024-07-1371", "tray": "review", "candidates": [ { "answer_id": "BRG-NOM-001", "score": 0.8257383108139038, "sibling_score": 0.8257383108139038, "answer_score": null, "sibling_qid": "NOI-2026-09-0015-Q005", "sibling_text": "how to order motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Bearing Numbers, Suffixes and What to State When Ordering", "cross_family": false }, { "answer_id": "IP-ENCL-002", "score": 0.6725749373435974, "sibling_score": 0.6725749373435974, "answer_score": null, "sibling_qid": "KOC-2026-10-2222-Q002", "sibling_text": "how to order sea water motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Suitable IP rating by location — ER, deck, pump, generator", "cross_family": false }, { "answer_id": "SGM-ELEC-002", "score": 0.6453049182891846, "sibling_score": 0.6453049182891846, "answer_score": 0.49151477217674255, "sibling_qid": "MUM-2025-08-1605-Q001", "sibling_text": "steering motor type and difference from other er motors how to order motor over speed test over current test", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What type of motor is the steering gear motor, how does it differ from other engine-room motors, and how do you order one?", "cross_family": false } ] }, { "qid": "KOC-2024-07-1372-Q001", "text": "How to order Sea water pump motor ?", "family": "Electrical - Motors & Starters", "subtopic": "Motor Specification / Ordering", "tid": "KOC-2024-07-1372", "tray": "review", "candidates": [ { "answer_id": "IP-ENCL-002", "score": 0.8262982964515686, "sibling_score": 0.8262982964515686, "answer_score": null, "sibling_qid": "KOC-2026-01-1692-Q005", "sibling_text": "how to order main sea water pump motor and ip and class", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Suitable IP rating by location — ER, deck, pump, generator", "cross_family": false }, { "answer_id": "IP-ENCL-001", "score": 0.7282862067222595, "sibling_score": 0.7282862067222595, "answer_score": null, "sibling_qid": "KOC-2025-02-1497-Q002", "sibling_text": "how to order a s w pump motor asked about ip rating", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "IP rating of motors — what the numbers mean", "cross_family": false }, { "answer_id": "CABLE-INS-C-001", "score": 0.7021962404251099, "sibling_score": 0.7021962404251099, "answer_score": null, "sibling_qid": "MUM-2024-07-1436-Q004", "sibling_text": "sea water pump cable burned how will you order", "sibling_family": "", "via": "sibling", "answer_title": "Ordering & selecting a cable; what decides current-carrying capacity", "cross_family": false } ] }, { "qid": "KOC-2024-07-1374-Q001", "text": "Three point starter full explanation", "family": "Electrical - Motors & Starters", "subtopic": "DC Motor Three-Point Starter", "tid": "KOC-2024-07-1374", "tray": "review", "candidates": [ { "answer_id": "STR-DEC-A-001", "score": 0.6578395962715149, "sibling_score": 0.6578395962715149, "answer_score": null, "sibling_qid": "KOC-2026-02-1709-Q002", "sibling_text": "3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "STARTER-DEC-B-003", "score": 0.6491720080375671, "sibling_score": 0.6491720080375671, "answer_score": null, "sibling_qid": "KOC-2023-04-1255-Q006", "sibling_text": "dol starter 3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "DOL starter — use, current, range and limits", "cross_family": false }, { "answer_id": "SDST-A-001", "score": 0.5705602765083313, "sibling_score": 0.5705602765083313, "answer_score": 0.34060108214616774, "sibling_qid": "KOC-2026-02-1701-Q005", "sibling_text": "three point starter diagram with explanation", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false } ] }, { "qid": "KOC-2024-07-1845-Q007", "text": "Boiler safety v/v Top section - thread comnections on neck bush to be shawn clearly - for this gave only 30 seconds hardly.(while in hurry u may miss minute observations)", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2024-07-1845", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-008", "score": 0.7095616459846497, "sibling_score": 0.7095616459846497, "answer_score": null, "sibling_qid": "MUM-2026-05-3078-Q008", "sibling_text": "safeties on boiler", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "BLR-MANHOLE-004", "score": 0.7026580572128296, "sibling_score": 0.7026580572128296, "answer_score": null, "sibling_qid": "KOC-2026-05-2136-Q006", "sibling_text": "boiler manhole fitting precautions spigot clearance", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Manhole door drawing, construction, and spigot clearance + significance", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.681913435459137, "sibling_score": 0.681913435459137, "answer_score": null, "sibling_qid": "NOI-2026-09-0018-Q005", "sibling_text": "boiler safety valve setting in front of surveyor", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false } ] }, { "qid": "KOC-2024-07-1847-Q004", "text": "AE valve spindle found broken giving knocking sound. What all checks you will make before installing new one?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE Valve Seat", "tid": "KOC-2024-07-1847", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.6856110692024231, "sibling_score": 0.6856110692024231, "answer_score": null, "sibling_qid": "KOL-2024-12-3728-Q006", "sibling_text": "after how many hours ae con rod bolts are changed and why ae con rod bolt is renewed and why not for me conrod bolts how will you do ae engine balancing after decarb and what important things to check how to know fuel pump timing what all things are checked on safety valve after disassembly how to check spindle trueness and how to check whether spring is ok or not he was telling about hammer test on the spring", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "AE-CRP-003", "score": 0.6710959076881409, "sibling_score": 0.6710959076881409, "answer_score": null, "sibling_qid": "KOL-2025-06-3785-Q006", "sibling_text": "checks on ae piston and clearances to be taken with clearance values i just answered clearance will be mentioned on the manual", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE piston, ring and groove checks; piston material", "cross_family": false }, { "answer_id": "EXHV-297-004", "score": 0.6629006266593933, "sibling_score": 0.6629006266593933, "answer_score": 0.539933243393898, "sibling_qid": "MUM-2023-06-2177-Q006", "sibling_text": "exhaust valve spindle checks during overhaul", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Checks, tests & overhaul points — before and after fitting", "cross_family": true } ] }, { "qid": "KOC-2024-07-1847-Q008", "text": "AE Bottom end bearing tightening sequence", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Decarb Checks / Connecting Rod / Bottom End Bearing", "tid": "KOC-2024-07-1847", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-007", "score": 0.7575851082801819, "sibling_score": 0.7575851082801819, "answer_score": 0.49680520296096803, "sibling_qid": "KOL-2020-09-3347-Q001", "sibling_text": "a e con rod bottom end bearing bedding procedure change and tightening procedure", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE big-end / bottom-end bearing — inspection, bedding, nip and crush", "cross_family": false }, { "answer_id": "AECR-651-003", "score": 0.6920599341392517, "sibling_score": 0.6920599341392517, "answer_score": 0.5124066591262817, "sibling_qid": "KOL-2025-06-3785-Q005", "sibling_text": "ae conrod check and criteria to change bottom end bolts and tightening procedure", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "What are the criteria to change the bottom-end bolts on an AE connecting rod, and what is the tightening procedure?", "cross_family": false }, { "answer_id": "AE-MB-002", "score": 0.6811347603797913, "sibling_score": 0.6811347603797913, "answer_score": 0.4966479420661926, "sibling_qid": "KOL-2026-02-3912-Q002", "sibling_text": "ae main bearing bottom end removal", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Removing the lower shell / bottom half of an AE main bearing", "cross_family": false } ] }, { "qid": "KOC-2024-07-1847-Q009", "text": "■Refrigeration system Lube oil properties", "family": "Refrigeration & AC", "subtopic": "Refrigeration Lubricating Oil / Flock Point / Oil Charging", "tid": "KOC-2024-07-1847", "tray": "review", "candidates": [ { "answer_id": "REEF-COMP-003", "score": 0.8414588570594788, "sibling_score": 0.8414588570594788, "answer_score": 0.6369343370199203, "sibling_qid": "MUM-2026-02-1278-Q004", "sibling_text": "refrigeration lube oil properties", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Refrigeration-compressor lube oil — properties, selection, and its jobs beyond lubrication", "cross_family": false }, { "answer_id": "MAC-598-006", "score": 0.7206290364265442, "sibling_score": 0.7206290364265442, "answer_score": 0.5353387832641602, "sibling_qid": "KOL-2025-08-2011-Q005", "sibling_text": "compressor lub oil properties", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Properties of compressor lubricating oil, and what if the oil level is not maintaining", "cross_family": true }, { "answer_id": "SYN-LUBE-003", "score": 0.7018135190010071, "sibling_score": 0.7018135190010071, "answer_score": 0.5533970355987549, "sibling_qid": "KOC-2022-11-0974-Q003", "sibling_text": "lube oil properties of reefer compressor vs air compressor what is synthetic oil what makes it synthetic what are the benefits why not clo synthetic", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "SL-003 – Where synthetic and PAG oils are used on board, and why", "cross_family": true } ] }, { "qid": "KOC-2024-07-1848-Q003", "text": "safety valve pressure setting procedure. safety valve diagram top part where is compression nut threaded", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2024-07-1848", "tray": "review", "candidates": [ { "answer_id": "ECON-EGB-004", "score": 0.6901068687438965, "sibling_score": 0.6901068687438965, "answer_score": 0.5239311873912811, "sibling_qid": "KOL-2026-02-3912-Q003", "sibling_text": "safety valve setting procedure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Safety-valve setting after overhaul & why set higher than the boiler", "cross_family": false }, { "answer_id": "MR-DS-PV-B-006", "score": 0.6772523522377014, "sibling_score": 0.6772523522377014, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q005", "sibling_text": "full bore safety valve diagram", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "6. Deck isolating valve, deck relief/safety devices, and cargo-tank pressure", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.6772015690803528, "sibling_score": 0.6772015690803528, "answer_score": null, "sibling_qid": "KOC-2026-05-2142-Q008", "sibling_text": "safety valve setting in front of surveyor", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false } ] }, { "qid": "KOC-2024-07-1848-Q004", "text": "EGB uptake fire", "family": "Boilers - Operations & Firing", "subtopic": "Uptake Fire", "tid": "KOC-2024-07-1848", "tray": "review", "candidates": [ { "answer_id": "UPT-FIRE-003", "score": 0.7426828742027283, "sibling_score": 0.7426828742027283, "answer_score": 0.3614193797111511, "sibling_qid": "KOC-2024-06-1843-Q007", "sibling_text": "egb uptake fire actions", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Fire in the exhaust gas boiler or economiser — actions and instructions to the duty engineers", "cross_family": false }, { "answer_id": "UPT-FIRE-001", "score": 0.6140566468238831, "sibling_score": 0.6140566468238831, "answer_score": 0.3641133338212967, "sibling_qid": "MUM-2026-03-0999-Q005", "sibling_text": "uptake fire", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "The 4/E reports an uptake fire — your actions as 2/E", "cross_family": false }, { "answer_id": "SMK-FUNL-BF01-004", "score": 0.3896348416805267, "sibling_score": null, "answer_score": 0.3896348416805267, "sibling_qid": "", "sibling_text": "there are sparks from the funnel on arrival in port what is the reason and your action cause egb soot fire ignited by arrival load transients on a soot loaded gas side confirm rising egb gas outlet temp with steady inlet classical signature of a tube fire", "sibling_family": "", "via": "answer_title", "answer_title": "There are sparks from the funnel on arrival in port — what is the reason and your action?", "cross_family": false } ] }, { "qid": "KOC-2024-07-1849-Q003", "text": "crosshead bearing overhauling", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Crosshead Bearing", "tid": "KOC-2024-07-1849", "tray": "review", "candidates": [ { "answer_id": "XHD-BRG-C-002", "score": 0.8085051774978638, "sibling_score": 0.8085051774978638, "answer_score": 0.5733451038599015, "sibling_qid": "KOL-2026-09-4305-Q005", "sibling_text": "crosshead bearing overhaul", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "B. Crosshead bearing overhaul and removal: exact steps, tackle, withdrawing the pin", "cross_family": false }, { "answer_id": "CXH-BRG-FINAL-1-001", "score": 0.8068765997886658, "sibling_score": 0.8068765997886658, "answer_score": null, "sibling_qid": "MUM-2026-03-2930-Q007", "sibling_text": "crosshead bearing overhaul", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead bearing survey: open-up, removal & inspection", "cross_family": false }, { "answer_id": "XHD-BRG-B-002", "score": 0.7992002964019775, "sibling_score": 0.7992002964019775, "answer_score": null, "sibling_qid": "KOL-2022-02-3516-Q005", "sibling_text": "crosshead bearing lower half overhaul", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Removing and lowering the crosshead bottom shell — the critical safety measure", "cross_family": false } ] }, { "qid": "KOC-2024-07-1849-Q006", "text": "Boiler safety vv setting infront of surveyor", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2024-07-1849", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P01-001", "score": 0.8201858401298523, "sibling_score": 0.8201858401298523, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q011", "sibling_text": "boiler safety valve setting in front of surveyor", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-003", "score": 0.737329363822937, "sibling_score": 0.737329363822937, "answer_score": null, "sibling_qid": "KOL-2026-02-2040-Q006", "sibling_text": "boiler safety v v setting boiler accumulation pr test", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "The accumulation test and the safety valve — required lift, how lift and capacity are verified, and why accumulation must stay inside the limit", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.6984635591506958, "sibling_score": 0.6984635591506958, "answer_score": null, "sibling_qid": "CHE-2026-04-0500-Q005", "sibling_text": "boiler safety valve setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false } ] }, { "qid": "KOC-2024-07-1849-Q007", "text": "Draw improved high lift safety vv top part", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2024-07-1849", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.6912378668785095, "sibling_score": 0.6912378668785095, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q012", "sibling_text": "draw top part of improved high lift safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "SOLAS12-BC-F-004", "score": 0.3505970537662506, "sibling_score": null, "answer_score": 0.3505970537662506, "sibling_qid": "", "sibling_text": "highly stressed parts strengthening members hatch corners peak stress concentration from the large deck opening longitudinal bending warping torsion in oblique seas strengthen with elliptical radiused corners insert doubler plates thicker or higher tensile steel continuous longitudinal hatch coamings as strength members thickened deck stringer side shell frames upper lower end brackets single skin", "sibling_family": "", "via": "answer_title", "answer_title": "Highly stressed parts & strengthening members", "cross_family": false }, { "answer_id": "BSBH-420-002", "score": 0.3286035552620888, "sibling_score": null, "answer_score": 0.3286035552620888, "sibling_qid": "", "sibling_text": "fore end forepeak construction forward of the collision bulkhead members and cross section region the fore peak tank between the stem and the collision bulkhead stem foremost member and leading edge solid bar stem or radiused plate stem with a bulbous bow if fitted", "sibling_family": "", "via": "answer_title", "answer_title": "Fore-end / forepeak construction forward of the collision bulkhead — members and cross-section", "cross_family": false } ] }, { "qid": "KOC-2024-07-1850-Q007", "text": "In Dry dock what checks on rudder?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOC-2024-07-1850", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.8281393647193909, "sibling_score": 0.8281393647193909, "answer_score": 0.564722353219986, "sibling_qid": "MUM-2026-07-3733-Q009", "sibling_text": "checks in rudder in dry dock", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "DUS-P5-05", "score": 0.8171318173408508, "sibling_score": 0.8171318173408508, "answer_score": 0.6023105949163436, "sibling_qid": "MUM-2026-05-2994-Q006", "sibling_text": "rudder check in dry dock", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Rudder checks and rudder-blade tightness/leak test in drydock", "cross_family": false }, { "answer_id": "DDHSC-003", "score": 0.5680107980966568, "sibling_score": null, "answer_score": 0.5680107980966568, "sibling_qid": "", "sibling_text": "what checks do you carry out on the hull propeller and rudder in drydock including jumping clearance hull shell plating cracks coating weld seams thickness gauging areas propeller erosion pitting cavitation cracks dye penetrant cone cap tight rope guard propeller drop wear", "sibling_family": "", "via": "answer_title", "answer_title": "What checks do you carry out on the hull, propeller and rudder in drydock, including jumping clearance?", "cross_family": false } ] }, { "qid": "KOC-2024-07-1850-Q008", "text": "Pressure testing of rudder", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOC-2024-07-1850", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.8138473033905029, "sibling_score": 0.8138473033905029, "answer_score": null, "sibling_qid": "MUM-2026-02-1272-Q011", "sibling_text": "pressure test of rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "HYD-VLV-007", "score": 0.4704244345426559, "sibling_score": null, "answer_score": 0.4704244345426559, "sibling_qid": "", "sibling_text": "the steering gear pressure relief valve location activation and the pump relief question function cap system over pressure and protect the rudder stock rams and piping spring loaded reseats after location across the pressure return sides at the rams or in the hydraulic block on any isolatable part where pressure can be generated solas ii 1 29", "sibling_family": "", "via": "answer_title", "answer_title": "The Steering-Gear Pressure-Relief Valve — Location, Activation, and the Pump-Relief Question", "cross_family": false }, { "answer_id": "HYD-VLV-002", "score": 0.45826169252395627, "sibling_score": null, "answer_score": 0.45826169252395627, "sibling_qid": "", "sibling_text": "steering gear valves relief bypass bidirectional and isolation and isolating a leak relief shock relief valves fitted across rams or vane chambers lift at their maker set cracking pressure which must not exceed design pressure absorb wave shock back driving the rudder solas ii 1 29 external force relief automatic bypass opens on over pressure relieves one side to the other protects the gear manual", "sibling_family": "", "via": "answer_title", "answer_title": "Steering-Gear Valves: Relief, Bypass, Bidirectional and Isolation — and Isolating a Leak", "cross_family": false } ] }, { "qid": "KOC-2024-07-1850-Q009", "text": "If you find crack on rudder what is the way you will go forward for repair as 2e?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOC-2024-07-1850", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.7405831217765808, "sibling_score": 0.7405831217765808, "answer_score": null, "sibling_qid": "CHE-2026-03-0495-Q005", "sibling_text": "crack in the rudder as 2eng prepare repair plan internal deciding", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "WBS-C-006", "score": 0.578659176826477, "sibling_score": 0.578659176826477, "answer_score": 0.5271469801664352, "sibling_qid": "KOL-2018-08-3185-Q003", "sibling_text": "propeller blade crack repair to be carried out", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Propeller and rudder repair — grading the damage and the Class-approved route", "cross_family": true }, { "answer_id": "HULL-DD-001", "score": 0.5697106122970581, "sibling_score": 0.5697106122970581, "answer_score": null, "sibling_qid": "KOL-2020-11-3360-Q004", "sibling_text": "hull crack repair i told the procedure followed by welding then he asked if crack occurs in the welding again then how will you repair", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "1. Hull plate / shell-weld crack repair in drydock", "cross_family": true } ] }, { "qid": "KOC-2024-07-1850-Q017", "text": "AE flywheel markings missing .How will you mark again?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Camshaft, Timing Gear / Valve Timing", "tid": "KOC-2024-07-1850", "tray": "review", "candidates": [ { "answer_id": "FCAM-LEAD-P04-002", "score": 0.6619291305541992, "sibling_score": 0.6619291305541992, "answer_score": 0.5000824511051177, "sibling_qid": "KOL-2023-07-3620-Q004", "sibling_text": "in main engine flywheel marking is not there you have to do the marking of every unit tdc procdure how to do", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Finding TDC when flywheel markings are missing", "cross_family": true }, { "answer_id": "LB-REQ-B-003", "score": 0.6087467074394226, "sibling_score": 0.6087467074394226, "answer_score": null, "sibling_qid": "KOL-2017-12-3104-Q003", "sibling_text": "for a new lifeboat engine there is no marking on flywheel how you mark how to know exact point of tdc", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Finding TDC, marking the flywheel, checking timing & the decompression lever", "cross_family": true }, { "answer_id": "AE-CAMTIM-002", "score": 0.5838331580162048, "sibling_score": 0.5838331580162048, "answer_score": null, "sibling_qid": "KOC-2024-11-1016-Q003", "sibling_text": "how to check timing of aux engine via flywheel markings", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Checking four-stroke AE inlet and exhaust valve timing", "cross_family": false } ] }, { "qid": "KOC-2024-07-1850-Q018", "text": "ME crosshead clearances in detail", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Crosshead Bearing", "tid": "KOC-2024-07-1850", "tray": "review", "candidates": [ { "answer_id": "XHEAD-303-005", "score": 0.684858500957489, "sibling_score": 0.684858500957489, "answer_score": 0.5115708559751511, "sibling_qid": "KOL-2016-10-1245-Q002", "sibling_text": "cross head all clearance", "sibling_family": "2-Stroke - 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Components (Other)", "subtopic": "Cylinder Cover / Head", "tid": "KOC-2024-07-1852", "tray": "review", "candidates": [ { "answer_id": "CCH-590-003", "score": 0.6932012438774109, "sibling_score": 0.6932012438774109, "answer_score": null, "sibling_qid": "MUM-2026-06-3566-Q006", "sibling_text": "cylinder head cracked what to do actions", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "A cylinder head or its cooling jacket is cracked. What is the first indication, what is your action, and how do you make port?", "cross_family": false }, { "answer_id": "METAL-LOCK-003", "score": 0.6814201474189758, "sibling_score": 0.6814201474189758, "answer_score": null, "sibling_qid": "MUM-2026-06-3566-Q007", "sibling_text": "how to repair cylinder head i told metal lock next question metal lock", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Cold repair of cracked cast-iron parts: liner, pump/valve cage, loose bearing seat", "cross_family": false }, { "answer_id": "CCH-590-004", "score": 0.6611133217811584, "sibling_score": 0.6611133217811584, "answer_score": null, "sibling_qid": "KOC-2025-06-1918-Q006", "sibling_text": "correct procedure for lifting cylinder head", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "What is the correct procedure for lifting a cylinder head, and what checks do you make on the crane beforehand?", "cross_family": false } ] }, { "qid": "KOC-2024-07-1852-Q008", "text": "If cant able to open stud what you will do?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Holding Down Bolts", "tid": "KOC-2024-07-1852", "tray": "new", "candidates": [ { "answer_id": "BBR-001", "score": 0.4216660261154175, "sibling_score": 0.4216660261154175, "answer_score": 0.26698180586099624, "sibling_qid": "KOL-2022-01-3505-Q006", "sibling_text": "stud broken how to remove easily", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "How do you extract a broken or sheared stud/bolt from machinery or structure?", "cross_family": true }, { "answer_id": "CRD-001", "score": 0.3958951532840729, "sibling_score": 0.3958951532840729, "answer_score": null, "sibling_qid": "KOC-2025-05-2063-Q013", "sibling_text": "c case relief door working", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Construction, working & flame arrester of crankcase relief door", "cross_family": false }, { "answer_id": "CB-033-A-001", "score": 0.39369845390319824, "sibling_score": 0.39369845390319824, "answer_score": null, "sibling_qid": "KOC-2025-02-1500-Q005", "sibling_text": "when you offload your dg your vcb cannot be opened what are your actions", "sibling_family": "", "via": "sibling", "answer_title": "What are your actions if a generator / main breaker or ACB will not open, close, or operate correctly?", "cross_family": false } ] }, { "qid": "KOC-2024-07-2050-Q002", "text": "Linear wear how to check , x. liner wear what are the action", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "KOC-2024-07-2050", "tray": "review", "candidates": [ { "answer_id": "CYL-LINER-P01-003", "score": 0.6577317118644714, "sibling_score": 0.6577317118644714, "answer_score": null, "sibling_qid": "MUM-2026-03-1305-Q008", "sibling_text": "liner calibration and what if you found that wear down is beyond limit what action s you take", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "From the readings: wear, wear rate, units and renewal limits", "cross_family": false }, { "answer_id": "CYL-LINER-P01-004", "score": 0.6181873083114624, "sibling_score": 0.6181873083114624, "answer_score": null, "sibling_qid": "MUM-2026-05-3153-Q010", "sibling_text": "liner calibration is completed now how will you know the wear and ovality", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Ovality: measuring it and reading the cause", "cross_family": false }, { "answer_id": "CYL-LINER-P01-001", "score": 0.609672486782074, "sibling_score": 0.609672486782074, "answer_score": 0.43799033761024475, "sibling_qid": "KOL-2016-08-1230-Q001", "sibling_text": "liner calibration wear etc", "sibling_family": "2-Stroke - 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Explain its purpose and requirements.", "cross_family": false }, { "answer_id": "CSM-214-001", "score": 0.597602128982544, "sibling_score": 0.597602128982544, "answer_score": null, "sibling_qid": "MUM-2025-08-2377-Q002", "sibling_text": "csm survey", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "What CSM is, and why it is called “continuous”", "cross_family": true }, { "answer_id": "CERT-LIST-P02-003", "score": 0.5582585334777832, "sibling_score": 0.5582585334777832, "answer_score": null, "sibling_qid": "KOC-2025-01-2059-Q008", "sibling_text": "cof and cof related surveys internal", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Certificates that decide ship type and permitted cargo", "cross_family": false } ] }, { "qid": "KOC-2024-08-0374-Q009", "text": "SMS Contents ? DPA duties ?", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOC-2024-08-0374", "tray": "new", "candidates": [ { "answer_id": "SMSFR-002", "score": 0.62034010887146, "sibling_score": 0.62034010887146, "answer_score": null, "sibling_qid": "KOC-2022-03-0063-Q002", "sibling_text": "contents of sms", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the Safety Management System — the SMS manual, its contents, objectives, why it is needed onboard, and the company SMS policy?", "cross_family": false }, { "answer_id": "ISM-AUD-P02-004", "score": 0.619817316532135, "sibling_score": 0.619817316532135, "answer_score": 0.3393682509660721, "sibling_qid": "MUM-2022-08-0033-Q001", "sibling_text": "contents of sms", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "SMS contents, manuals, documents and drill records onboard", "cross_family": false }, { "answer_id": "ISM-DPA-001", "score": 0.5590131878852844, "sibling_score": 0.5590131878852844, "answer_score": 0.2914310619235039, "sibling_qid": "KOC-2024-12-0493-Q005", "sibling_text": "duties of dpa", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Role, duties and responsibility of the Designated Person Ashore (DPA)", "cross_family": false } ] }, { "qid": "KOC-2024-08-0374-Q010", "text": "Masters authority ?", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOC-2024-08-0374", "tray": "review", "candidates": [ { "answer_id": "ISM-DPA-004", "score": 0.7702449560165405, "sibling_score": 0.7702449560165405, "answer_score": 0.4359183847904205, "sibling_qid": "KOC-2023-07-0201-Q008", "sibling_text": "masters overriding authority", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Master's overriding authority and the DPA relationship (ISM chapters)", "cross_family": false }, { "answer_id": "ISM-AUD-P03-005", "score": 0.7317696809768677, "sibling_score": 0.7317696809768677, "answer_score": 0.414369335770607, "sibling_qid": "CHE-2026-05-0565-Q012", "sibling_text": "master overriding authority", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Master's overriding authority", "cross_family": false }, { "answer_id": "CO2-SYS-004", "score": 0.5342779159545898, "sibling_score": 0.5342779159545898, "answer_score": null, "sibling_qid": "CHE-2025-10-0304-Q014", "sibling_text": "explain master control", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fixed CO2 total-flooding system — overview, working and arrangements", "cross_family": true } ] }, { "qid": "KOC-2024-08-0375-Q009", "text": "Steering gear motor safety", "family": "Electrical - Motors & Starters", "subtopic": "STEERING GEAR MOTOR-ELECTRICAL", "tid": "KOC-2024-08-0375", "tray": "review", "candidates": [ { "answer_id": "SGM-ELEC-001", "score": 0.818503201007843, "sibling_score": 0.818503201007843, "answer_score": 0.5603844553232192, "sibling_qid": "CHE-2026-02-0333-Q006", "sibling_text": "steering gear motor safeties", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What are the safeties, alarms and trips on the steering gear motor as per SOLAS — and how do you activate the safematic?", "cross_family": false }, { "answer_id": "SGM-ELEC-002", "score": 0.8183143734931946, "sibling_score": 0.8183143734931946, "answer_score": null, "sibling_qid": "MUM-2026-05-3190-Q008", "sibling_text": "steering gear motor safeties", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What type of motor is the steering gear motor, how does it differ from other engine-room motors, and how do you order one?", "cross_family": false }, { "answer_id": "ELEC-SAFE-006", "score": 0.6167509347200394, "sibling_score": null, "answer_score": 0.6167509347200394, "sibling_qid": "", "sibling_text": "steering gear electrical safety and motor insulation essential service duplicated supplies often one from the emergency switchboard motors have short circuit protection and an overload alarm no normal overload trip that would stop steering", "sibling_family": "", "via": "answer_title", "answer_title": "Steering gear electrical safety and motor insulation", "cross_family": false } ] }, { "qid": "KOC-2024-08-0376-Q006", "text": "Rudder diagram with the bearing arrangement Internal -Paul", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOC-2024-08-0376", "tray": "review", "candidates": [ { "answer_id": "TRS-002", "score": 0.7203001379966736, "sibling_score": 0.7203001379966736, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "HULL-PAINT-002", "score": 0.6628803014755249, "sibling_score": 0.6628803014755249, "answer_score": null, "sibling_qid": "CHE-2026-02-0110-Q012", "sibling_text": "rudder internal painting", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Types of hull coating, the paint scheme by section, and why each is used", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.6628802418708801, "sibling_score": 0.6628802418708801, "answer_score": null, "sibling_qid": "MUM-2026-05-3150-Q003", "sibling_text": "rudder internal painting", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false } ] }, { "qid": "KOC-2024-08-0376-Q008", "text": "loadicator purpose and working", "family": "Stability & Loadicator", "subtopic": "Loadicator", "tid": "KOC-2024-08-0376", "tray": "new", "candidates": [ { "answer_id": "SOLAS12-BC-D-001", "score": 0.5905753970146179, "sibling_score": 0.5905753970146179, "answer_score": 0.3566476970911026, "sibling_qid": "KOL-2021-10-0563-Q004", "sibling_text": "purpose of loadicator all asked by rao sir", "sibling_family": "", "via": "sibling", "answer_title": "Loadicator — why a loading instrument is required, and the loading-restriction concern", "cross_family": false }, { "answer_id": "LL-CONV-P06-004", "score": 0.45277148485183716, "sibling_score": 0.45277148485183716, "answer_score": null, "sibling_qid": "KOC-2022-11-0108-Q001", "sibling_text": "explain load line", "sibling_family": "", "via": "sibling", "answer_title": "LLC-P06-04 - General load-line requirement, marks, stability link and overloading consequences", "cross_family": false }, { "answer_id": "LS-IMB-A-001", "score": 0.4452340006828308, "sibling_score": 0.4452340006828308, "answer_score": null, "sibling_qid": "KOC-2024-11-1434-Q006", "sibling_text": "kw loading detail explanation", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Two paralleled generators sharing unequal load — cause and correction", "cross_family": true } ] }, { "qid": "KOC-2024-08-0382-Q006", "text": "Rudder diagram with the bearing arrangement Internal -Paul", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOC-2024-08-0382", "tray": "review", "candidates": [ { "answer_id": "TRS-002", "score": 0.7203001379966736, "sibling_score": 0.7203001379966736, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.6628803014755249, "sibling_score": 0.6628803014755249, "answer_score": null, "sibling_qid": "MUM-2026-05-3150-Q003", "sibling_text": "rudder internal painting", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "HULL-PAINT-002", "score": 0.6628803014755249, "sibling_score": 0.6628803014755249, "answer_score": null, "sibling_qid": "CHE-2026-02-0110-Q012", "sibling_text": "rudder internal painting", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Types of hull coating, the paint scheme by section, and why each is used", "cross_family": false } ] }, { "qid": "KOC-2024-08-0382-Q008", "text": "loadicator purpose and working", "family": "Stability & Loadicator", "subtopic": "Loadicator", "tid": "KOC-2024-08-0382", "tray": "new", "candidates": [ { "answer_id": "SOLAS12-BC-D-001", "score": 0.5905753374099731, "sibling_score": 0.5905753374099731, "answer_score": 0.3566476970911026, "sibling_qid": "KOL-2021-10-0563-Q004", "sibling_text": "purpose of loadicator all asked by rao sir", "sibling_family": "", "via": "sibling", "answer_title": "Loadicator — why a loading instrument is required, and the loading-restriction concern", "cross_family": false }, { "answer_id": "LL-CONV-P06-004", "score": 0.45277148485183716, "sibling_score": 0.45277148485183716, "answer_score": null, "sibling_qid": "KOC-2022-11-0108-Q001", "sibling_text": "explain load line", "sibling_family": "", "via": "sibling", "answer_title": "LLC-P06-04 - General load-line requirement, marks, stability link and overloading consequences", "cross_family": false }, { "answer_id": "LS-IMB-A-001", "score": 0.4452340006828308, "sibling_score": 0.4452340006828308, "answer_score": null, "sibling_qid": "KOC-2024-11-1434-Q006", "sibling_text": "kw loading detail explanation", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Two paralleled generators sharing unequal load — cause and correction", "cross_family": true } ] }, { "qid": "KOC-2024-08-0384-Q010", "text": "Various statutory certificates held on board. Internal, paul sir Notation of class, Csm survey, what machinery from engine room not included in csm Docking survey frequency", "family": "Surveys - Statutory", "subtopic": "Notation of Vessel", "tid": "KOC-2024-08-0384", "tray": "review", "candidates": [ { "answer_id": "CSM-214-004", "score": 0.6885235905647278, "sibling_score": 0.6885235905647278, "answer_score": 0.5169540524482726, "sibling_qid": "MUM-2026-09-3972-Q013", "sibling_text": "certificates and surveys for machineries other than seq and csm", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "CSM vs Special Survey vs CSH, other survey systems, and renewal", "cross_family": true }, { "answer_id": "ELEC-SURV-003", "score": 0.6605348587036133, "sibling_score": 0.6605348587036133, "answer_score": null, "sibling_qid": "MUM-2025-08-1572-Q006", "sibling_text": "inspection in engine room on electrical equipment what all certificate and things", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Documents, certificates & trend records", "cross_family": false }, { "answer_id": "CSM-214-002", "score": 0.6496745347976685, "sibling_score": 0.6496745347976685, "answer_score": 0.5940044432878494, "sibling_qid": "KOC-2024-08-0391-Q003", "sibling_text": "machineries not included in csm survey", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "What is NOT included in CSM", "cross_family": true } ] }, { "qid": "KOC-2024-08-0392-Q003", "text": "Captains responsibility of ISM", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOC-2024-08-0392", "tray": "new", "candidates": [ { "answer_id": "ISM-DPA-002", "score": 0.5720403790473938, "sibling_score": 0.5720403790473938, "answer_score": null, "sibling_qid": "KOC-2023-03-0172-Q004", "sibling_text": "ism who is responsible for ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "DPA basis : which convention, which code, and who is responsible for ISM", "cross_family": false }, { "answer_id": "ISM-AUD-P03-004", "score": 0.5049759149551392, "sibling_score": 0.5049759149551392, "answer_score": null, "sibling_qid": "MUM-2026-09-3958-Q004", "sibling_text": "ism implementation on a new ship", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Ensuring ISM / SMS is implemented and followed onboard", "cross_family": false }, { "answer_id": "JOIN-HDVR-001", "score": 0.5026677846908569, "sibling_score": 0.5026677846908569, "answer_score": null, "sibling_qid": "MUM-2026-05-3253-Q001", "sibling_text": "as a 2 e you are taking over a ship from another management how will you confirm that ism related all things are in place", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Taking over a ship from new management — confirming the ISM/SMS is in place and being followed", "cross_family": false } ] }, { "qid": "KOC-2024-08-0392-Q004", "text": "MEPC", "family": "IMO Structure & Conventions", "subtopic": "Latest MEPC Outcomes / GHG Strategy", "tid": "KOC-2024-08-0392", "tray": "new", "candidates": [ { "answer_id": "IMO-CC-P01-003", "score": 0.644923746585846, "sibling_score": 0.644923746585846, "answer_score": null, "sibling_qid": "KOC-2025-07-0638-Q005", "sibling_text": "mepc msc", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Name the IMO Committees and Sub-Committees (MSC, MEPC, FAL …) and state their functions.", "cross_family": false }, { "answer_id": "AV6-P01-01", "score": 0.640955924987793, "sibling_score": 0.640955924987793, "answer_score": null, "sibling_qid": "KOC-2026-03-0884-Q005", "sibling_text": "mepc 83", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Explain the latest Annex VI amendment or MEPC development, and state its date and status.", "cross_family": false }, { "answer_id": "MEPC-GHG-004", "score": 0.5883636474609375, "sibling_score": 0.5883636474609375, "answer_score": null, "sibling_qid": "KOC-2023-10-0226-Q001", "sibling_text": "mepc 98", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Explain MEPC 82 and its new regulations.", "cross_family": true } ] }, { "qid": "KOC-2024-08-0393-Q011", "text": "3 point starter -explain 2 VFD draw, explain", "family": "Electrical - Motors & Starters", "subtopic": "DC Motor Three-Point Starter", "tid": "KOC-2024-08-0393", "tray": "new", "candidates": [ { "answer_id": "SDST-A-001", "score": 0.6232119202613831, "sibling_score": 0.6232119202613831, "answer_score": 0.46943339705467224, "sibling_qid": "KOC-2026-02-1701-Q005", "sibling_text": "three point starter diagram with explanation", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false }, { "answer_id": "VFD-INV-P02-001", "score": 0.4839428424835205, "sibling_score": null, "answer_score": 0.4839428424835205, "sibling_qid": "", "sibling_text": "draw and explain the vfd power circuit and working sequence three stages two conversions rectifier ac dc dc link smooth store inverter dc ac variable v f rectifier six diode uncontrolled bridge dc link sits near 1 35 line voltage when loaded about 540 v on a 400 v bus", "sibling_family": "", "via": "answer_title", "answer_title": "Draw and explain the VFD power circuit and working sequence", "cross_family": false }, { "answer_id": "SOFTSTART-P02-002", "score": 0.44815940260887144, "sibling_score": null, "answer_score": 0.44815940260887144, "sibling_qid": "", "sibling_text": "soft starter circuit draw and explain three phase supply l1 l2 l3 soft starter motor u v w three wire no neutral needed each line two scrs in anti parallel back to back or one triac three pairs six scrs total", "sibling_family": "", "via": "answer_title", "answer_title": "Soft starter circuit — draw and explain", "cross_family": false } ] }, { "qid": "KOC-2024-08-0395-Q004", "text": "Draw cross section of rudder", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOC-2024-08-0395", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.7100921273231506, "sibling_score": 0.7100921273231506, "answer_score": null, "sibling_qid": "KOC-2026-03-0879-Q004", "sibling_text": "rudder cross section", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "DUS-P5-03", "score": 0.632498025894165, "sibling_score": 0.632498025894165, "answer_score": 0.4642566055059433, "sibling_qid": "KOC-2024-12-2058-Q002", "sibling_text": "draw aft portion of the ship without propeller and rudder in it show the rudder axis which pass through the structure", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Stern frame construction, cross-section and rudder-axis sketch", "cross_family": true }, { "answer_id": "HULL-PAINT-002", "score": 0.6070026755332947, "sibling_score": 0.6070026755332947, "answer_score": null, "sibling_qid": "CHE-2026-02-0110-Q012", "sibling_text": "rudder internal painting", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Types of hull coating, the paint scheme by section, and why each is used", "cross_family": false } ] }, { "qid": "KOC-2024-08-0395-Q005", "text": "Difference between immersion suit and TPA and their temperature ranges", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Solas Pack A / B", "tid": "KOC-2024-08-0395", "tray": "new", "candidates": [ { "answer_id": "SCBA-EEBD-005", "score": 0.5163570642471313, "sibling_score": 0.5163570642471313, "answer_score": 0.40412739068269726, "sibling_qid": "KOL-2017-01-0042-Q005", "sibling_text": "difference between firemans outfit ppa immerssion suit when it is used", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fireman's outfit vs PPA vs immersion suit — what each is, when used", "cross_family": true }, { "answer_id": "LB-SURV-C-003", "score": 0.5003520846366882, "sibling_score": 0.5003520846366882, "answer_score": null, "sibling_qid": "CHE-2026-02-0103-Q002", "sibling_text": "immersion suit monthly 6 month and annual maintenance", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Routine maintenance ladder — weekly / monthly / quarterly / 6-monthly onboard checks", "cross_family": false }, { "answer_id": "INS-CLASS-002", "score": 0.47520798444747925, "sibling_score": 0.47520798444747925, "answer_score": null, "sibling_qid": "MUM-2026-09-3873-Q009", "sibling_text": "insulation class with working temp and hotspot temp", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What are the classes of insulation, their temperature limits and their materials?", "cross_family": true } ] }, { "qid": "KOC-2024-08-0395-Q006", "text": "Safcon certificate contents", "family": "Surveys - Statutory", "subtopic": "Safety Construction / Cargo Safety Cert", "tid": "KOC-2024-08-0395", "tray": "review", "candidates": [ { "answer_id": "CERT-LIST-P02-004", "score": 0.7095661759376526, "sibling_score": 0.7095661759376526, "answer_score": null, "sibling_qid": "CHE-2025-08-0019-Q015", "sibling_text": "certificate contents and validity", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Validity, renewal, interim certificates and e-certificate verification", "cross_family": false }, { "answer_id": "AFS-309-003", "score": 0.6468565464019775, "sibling_score": 0.6468565464019775, "answer_score": null, "sibling_qid": "KOL-2026-02-1185-Q003", "sibling_text": "afs certificate requirement and contents", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "IAFS Certificate, survey, validity and drydock compliance", "cross_family": true }, { "answer_id": "EIAPP-600-003", "score": 0.6430045962333679, "sibling_score": 0.6430045962333679, "answer_score": null, "sibling_qid": "MUM-2026-02-0787-Q005", "sibling_text": "eiapp certificate contents of eiapp cert", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What are the contents of the EIAPP certificate, and what documents are attached to it?", "cross_family": true } ] }, { "qid": "KOC-2024-08-0395-Q007", "text": "Fire in front of boiler and you are alone in engine room,action? Paul sir: Interval of drydock survey", "family": "Boilers - Operations & Firing", "subtopic": "Soot/Iron/Hydrogen Fire", "tid": "KOC-2024-08-0395", "tray": "new", "candidates": [ { "answer_id": "UPT-FIRE-001", "score": 0.6489791870117188, "sibling_score": 0.6489791870117188, "answer_score": null, "sibling_qid": "KOC-2024-01-1824-Q005", "sibling_text": "action as second engineer in boiler uptake fire", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "The 4/E reports an uptake fire — your actions as 2/E", "cross_family": false }, { "answer_id": "FIRE-P04-05", "score": 0.646179735660553, "sibling_score": 0.646179735660553, "answer_score": 0.4893766015768051, "sibling_qid": "MUM-2023-11-0149-Q006", "sibling_text": "fire on deck in drydock your actions as 2nd engineer step by step", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fire in dry dock / alongside repair — 2/E stepwise actions", "cross_family": true }, { "answer_id": "UPT-FIRE-003", "score": 0.6333000063896179, "sibling_score": 0.6333000063896179, "answer_score": null, "sibling_qid": "KOL-2019-02-3212-Q002", "sibling_text": "ship is in mid sea running there is a small fire in economiser your course of action and instructions to junior engineers", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Fire in the exhaust gas boiler or economiser — actions and instructions to the duty engineers", "cross_family": false } ] }, { "qid": "KOC-2024-08-0398-Q005", "text": "Campher", "family": "SOLAS", "subtopic": "Deck Camber / Sheer", "tid": "KOC-2024-08-0398", "tray": "review", "candidates": [ { "answer_id": "CAM-437-001", "score": 0.6600046753883362, "sibling_score": 0.6600046753883362, "answer_score": null, "sibling_qid": "KOC-2025-04-1037-Q002", "sibling_text": "cam function", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Function of the camshaft in a main (MC) engine", "cross_family": true }, { "answer_id": "FCAM-LEAD-P04-001", "score": 0.5810307264328003, "sibling_score": 0.5810307264328003, "answer_score": 0.3153595685958862, "sibling_qid": "MUM-2025-09-2831-Q006", "sibling_text": "casted cam", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel cam lead, cam profile, negative cam and cam slip", "cross_family": true }, { "answer_id": "CAM-437-003", "score": 0.5115867853164673, "sibling_score": 0.5115867853164673, "answer_score": 0.32888593077659606, "sibling_qid": "MUM-2026-03-1303-Q006", "sibling_text": "cam profile difference", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Cam profile difference — fuel cam versus exhaust cam", "cross_family": true } ] }, { "qid": "KOC-2024-08-0398-Q006", "text": "Raise of floor", "family": "SOLAS", "subtopic": "Keel & Framing", "tid": "KOC-2024-08-0398", "tray": "review", "candidates": [ { "answer_id": "KEEL-FRM-B-003", "score": 0.668805718421936, "sibling_score": 0.668805718421936, "answer_score": 0.3122061938047409, "sibling_qid": "KOL-2020-06-0412-Q003", "sibling_text": "rise of floor from where it rises", "sibling_family": "", "via": "sibling", "answer_title": "Rise of floor, camber, deadrise & hull-form terms", "cross_family": false }, { "answer_id": "FLR-WFB-P01-002", "score": 0.4995589256286621, "sibling_score": 0.4995589256286621, "answer_score": null, "sibling_qid": "MUM-2025-10-0502-Q011", "sibling_text": "solid floor", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "The solid floor — what it is, where it is fitted, its components", "cross_family": false }, { "answer_id": "FLR-WFB-P01-001", "score": 0.4801362454891205, "sibling_score": 0.4801362454891205, "answer_score": 0.3694805964827537, "sibling_qid": "KOL-2025-10-1101-Q003", "sibling_text": "floor type", "sibling_family": "", "via": "sibling", "answer_title": "Floors — what they are, the types, and where they are fitted", "cross_family": false } ] }, { "qid": "KOC-2024-08-0398-Q018", "text": "Wat is form e from where u can find it wat all the survey comes under it", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "EIAPP", "tid": "KOC-2024-08-0398", "tray": "new", "candidates": [ { "answer_id": "ISM-2E-C-001", "score": 0.49682772159576416, "sibling_score": 0.49682772159576416, "answer_score": null, "sibling_qid": "KOC-2024-12-0485-Q005", "sibling_text": "ism survey as 2e all documents in er", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM audit / survey preparation as Second Engineer — beyond the paperwork", "cross_family": true }, { "answer_id": "CERT-LIST-P03-003", "score": 0.4881194829940796, "sibling_score": 0.4881194829940796, "answer_score": 0.3475242853164673, "sibling_qid": "KOL-2026-01-1153-Q002", "sibling_text": "what is form e in seq certificate contents of equipments and details inside form e", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Cargo Ship Safety Equipment Certificate & Form E", "cross_family": true }, { "answer_id": "EEDI-B-001", "score": 0.4843935966491699, "sibling_score": 0.4843935966491699, "answer_score": null, "sibling_qid": "KOL-2021-02-0474-Q001", "sibling_text": "eedi what why formula", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "EEDI — formula, unit and the calculation terms", "cross_family": false } ] }, { "qid": "KOC-2024-08-0399-Q003", "text": "Keel plate, solid floor, shear strake", "family": "SOLAS", "subtopic": "Shell Plating / Strakes", "tid": "KOC-2024-08-0399", "tray": "new", "candidates": [ { "answer_id": "SHELL-PLT-B-001", "score": 0.6389283537864685, "sibling_score": 0.6389283537864685, "answer_score": null, "sibling_qid": "KOC-2025-12-0760-Q011", "sibling_text": "uses of duct keel keel plate camber shear strake", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Sheer strake — location, why strengthened, deck-edge / gunwale connection", "cross_family": false }, { "answer_id": "FLR-WFB-P01-002", "score": 0.6180941462516785, "sibling_score": 0.6180941462516785, "answer_score": 0.46412543654441835, "sibling_qid": "KOC-2026-05-0035-Q002", "sibling_text": "solid floor plate", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "The solid floor — what it is, where it is fitted, its components", "cross_family": false }, { "answer_id": "BK-003", "score": 0.5708031058311462, "sibling_score": 0.5708031058311462, "answer_score": null, "sibling_qid": "MUM-2026-08-3837-Q006", "sibling_text": "bilge keel design features", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "What are the bilge-keel design, length, depth and protrusion requirements?", "cross_family": false } ] }, { "qid": "KOC-2024-08-0400-Q003", "text": "Keel plate, solid floor, shear strake", "family": "SOLAS", "subtopic": "Shell Plating / Strakes", "tid": "KOC-2024-08-0400", "tray": "new", "candidates": [ { "answer_id": "SHELL-PLT-B-001", "score": 0.6389283537864685, "sibling_score": 0.6389283537864685, "answer_score": null, "sibling_qid": "KOC-2025-12-0760-Q011", "sibling_text": "uses of duct keel keel plate camber shear strake", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Sheer strake — location, why strengthened, deck-edge / gunwale connection", "cross_family": false }, { "answer_id": "FLR-WFB-P01-002", "score": 0.6180940866470337, "sibling_score": 0.6180940866470337, "answer_score": 0.46412543654441835, "sibling_qid": "KOC-2026-05-0035-Q002", "sibling_text": "solid floor plate", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "The solid floor — what it is, where it is fitted, its components", "cross_family": false }, { "answer_id": "BK-003", "score": 0.5708031058311462, "sibling_score": 0.5708031058311462, "answer_score": null, "sibling_qid": "MUM-2026-08-3837-Q006", "sibling_text": "bilge keel design features", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "What are the bilge-keel design, length, depth and protrusion requirements?", "cross_family": false } ] }, { "qid": "KOC-2024-08-1002-Q001", "text": "Main engine crosshead lubrication", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Crosshead Bearing", "tid": "KOC-2024-08-1002", "tray": "review", "candidates": [ { "answer_id": "CXH-BRG-FINAL-1-004", "score": 0.8311309814453125, "sibling_score": 0.8311309814453125, "answer_score": 0.5700062990188598, "sibling_qid": "KOL-2017-07-1309-Q003", "sibling_text": "main engine crosshead lubrication", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead lubrication: how oil reaches the crosshead", "cross_family": false }, { "answer_id": "XHD-BRG-B-007", "score": 0.7902843356132507, "sibling_score": 0.7902843356132507, "answer_score": 0.5730277955532074, "sibling_qid": "KOL-2021-10-1628-Q003", "sibling_text": "crosshead lubrication how pipelines arranged fr lubrication in main engine", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Guide and guide-shoe lubrication, and the oil path from sump to crosshead", "cross_family": false }, { "answer_id": "CXH-BRG-FINAL-1-005", "score": 0.7754119038581848, "sibling_score": 0.7754119038581848, "answer_score": null, "sibling_qid": "KOL-2018-01-1336-Q003", "sibling_text": "crosshead lubrication speciality in main engine", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead lubrication: why it is uniquely difficult, MAN vs Sulzer, improvements", "cross_family": false } ] }, { "qid": "KOC-2024-08-1004-Q004", "text": "Gear oil properties", "family": "Lube Oil System", "subtopic": "Lube oil Properties", "tid": "KOC-2024-08-1004", "tray": "review", "candidates": [ { "answer_id": "LO-TEST-P01-005", "score": 0.8497029542922974, "sibling_score": 0.8497029542922974, "answer_score": 0.547631224989891, "sibling_qid": "KOC-2026-09-2182-Q012", "sibling_text": "gear oil properties", "sibling_family": "Lube Oil System", "via": "sibling", "answer_title": "Lube-oil properties, types and selection by duty", "cross_family": false }, { "answer_id": "VISC-IDX-002", "score": 0.7191282510757446, "sibling_score": 0.7191282510757446, "answer_score": 0.5424187153577804, "sibling_qid": "KOC-2026-02-1103-Q005", "sibling_text": "lube oil properties viscosity index and load bearing capacity is imp", "sibling_family": "Lube Oil System", "via": "sibling", "answer_title": "Which lube-oil properties are important, including VI and load-bearing capacity?", "cross_family": false }, { "answer_id": "CYL-LUB-B-002", "score": 0.6918140649795532, "sibling_score": 0.6918140649795532, "answer_score": 0.5236053168773651, "sibling_qid": "KOC-2022-07-0966-Q011", "sibling_text": "cyl lub oil properties", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Cylinder oil — required properties; can any oil be used?", "cross_family": true } ] }, { "qid": "KOC-2024-08-1004-Q005", "text": "How to pull out tube from condenser", "family": "Heat Exchangers & Coolers", "subtopic": "Condenser Type", "tid": "KOC-2024-08-1004", "tray": "new", "candidates": [ { "answer_id": "STHX-005", "score": 0.6028674244880676, "sibling_score": 0.6028674244880676, "answer_score": 0.4529936552047729, "sibling_qid": "KOL-2016-09-3005-Q002", "sibling_text": "how to remove damaged tube in a cooler", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "STHX-05 — Damaged-tube removal, tube renewal, retubing tools and procedure", "cross_family": false }, { "answer_id": "STHX-008", "score": 0.5899630188941956, "sibling_score": 0.5899630188941956, "answer_score": 0.430389529466629, "sibling_qid": "KOL-2018-06-3155-Q005", "sibling_text": "retubing full procedure asked if condenser tube has leaked how to replace it pranesh kumar", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "STHX-08 — Condensers (main / auxiliary / dump): tube attachment, testing, renewal and safety", "cross_family": false }, { "answer_id": "BLR-TUBE-P02-003", "score": 0.5471205711364746, "sibling_score": 0.5471205711364746, "answer_score": null, "sibling_qid": "KOL-2018-08-3167-Q006", "sibling_text": "how will you remove a tube from boiler date 04 01 2017", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Repairing, removing and renewing a boiler tube; Class formalities", "cross_family": true } ] }, { "qid": "KOC-2024-08-1376-Q002", "text": "Draw and explain 3 point starter", "family": "Electrical - Motors & Starters", "subtopic": "DC Motor Three-Point Starter", "tid": "KOC-2024-08-1376", "tray": "review", "candidates": [ { "answer_id": "STR-DEC-A-001", "score": 0.759365975856781, "sibling_score": 0.759365975856781, "answer_score": null, "sibling_qid": "KOC-2026-05-2133-Q010", "sibling_text": "draw and explain 3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "STARTER-DEC-B-003", "score": 0.6062524914741516, "sibling_score": 0.6062524914741516, "answer_score": null, "sibling_qid": "KOC-2023-04-1255-Q006", "sibling_text": "dol starter 3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "DOL starter — use, current, range and limits", "cross_family": false }, { "answer_id": "SDST-A-001", "score": 0.5960819125175476, "sibling_score": 0.5960819125175476, "answer_score": 0.3654998034238815, "sibling_qid": "KOC-2024-10-1415-Q002", "sibling_text": "draw and explain star dela starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false } ] }, { "qid": "KOC-2024-08-1381-Q002", "text": "Draw and explain 3 point stater", "family": "Electrical - Motors & Starters", "subtopic": "DC Motor Three-Point Starter", "tid": "KOC-2024-08-1381", "tray": "new", "candidates": [ { "answer_id": "STR-DEC-A-001", "score": 0.6443150639533997, "sibling_score": 0.6443150639533997, "answer_score": null, "sibling_qid": "KOC-2026-05-2133-Q010", "sibling_text": "draw and explain 3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "SDST-A-001", "score": 0.5686890482902527, "sibling_score": 0.5686890482902527, "answer_score": 0.35269727706909176, "sibling_qid": "KOC-2023-02-1234-Q001", "sibling_text": "draw star delta and explain", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false }, { "answer_id": "SDC-005", "score": 0.35272734612226486, "sibling_score": null, "answer_score": 0.35272734612226486, "sibling_qid": "", "sibling_text": "draw the delta connection three windings joined end to start in a closed loop a triangle line leads r y b taken from the three corners junctions", "sibling_family": "", "via": "answer_title", "answer_title": "Draw the delta connection", "cross_family": false } ] }, { "qid": "KOC-2024-08-1382-Q005", "text": "3 point Starter", "family": "Electrical - Motors & Starters", "subtopic": "DC Motor Three-Point Starter", "tid": "KOC-2024-08-1382", "tray": "review", "candidates": [ { "answer_id": "STR-DEC-A-001", "score": 0.7857781052589417, "sibling_score": 0.7857781052589417, "answer_score": null, "sibling_qid": "KOC-2026-02-1709-Q002", "sibling_text": "3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "STARTER-DEC-B-003", "score": 0.7463293671607971, "sibling_score": 0.7463293671607971, "answer_score": null, "sibling_qid": "KOC-2023-04-1255-Q006", "sibling_text": "dol starter 3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "DOL starter — use, current, range and limits", "cross_family": false }, { "answer_id": "SOFT-START-P01-001", "score": 0.6016334295272827, "sibling_score": 0.6016334295272827, "answer_score": null, "sibling_qid": "KOL-2017-07-2140-Q003", "sibling_text": "3 soft starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Soft Starter — Definition, Purpose and Working", "cross_family": false } ] }, { "qid": "KOC-2024-08-1387-Q006", "text": "What is droop of generator .why? . Int Explain VFD?. how ac to dc and dc to ac conversion done? What is IGBT?", "family": "Electrical - Generator & Alternator", "subtopic": "Voltage Dip / Droop", "tid": "KOC-2024-08-1387", "tray": "new", "candidates": [ { "answer_id": "VFD-INV-P02-004", "score": 0.610870361328125, "sibling_score": 0.610870361328125, "answer_score": 0.47258702516555784, "sibling_qid": "KOC-2024-05-1351-Q006", "sibling_text": "what is vfd draw the circuit diagram what happens in rectifier unit what is igbt how igbt converts constant dc voltage to variable ac voltage where it is used onboard", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Role of IGBT, MOSFET and BJT and gate triggering in a VFD inverter", "cross_family": true }, { "answer_id": "MIB-A-003", "score": 0.6056809425354004, "sibling_score": 0.6056809425354004, "answer_score": null, "sibling_qid": "KOC-2024-04-1349-Q010", "sibling_text": "5 what is vfd draw the circuit diagram what happens in rectifier unit what is igbt how igbt converts constant dc voltage to variable ac voltage where it is used onboard", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "IGBT in the VFD: PWM switching and gate control", "cross_family": true }, { "answer_id": "VFD-INV-P02-005", "score": 0.5658149123191833, "sibling_score": 0.5658149123191833, "answer_score": null, "sibling_qid": "KOC-2024-05-1350-Q003", "sibling_text": "vfd draw and explain applications on board how ac is converted to dc and vicersa in rectifier and inverter respectively", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "How do rectifier, DC link and inverter stages convert AC to DC and DC to AC?", "cross_family": true } ] }, { "qid": "KOC-2024-08-1855-Q002", "text": "How to remove stuck liner?", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "KOC-2024-08-1855", "tray": "review", "candidates": [ { "answer_id": "CYL-LINER-P02-002", "score": 0.7484345436096191, "sibling_score": 0.7484345436096191, "answer_score": null, "sibling_qid": "MUM-2026-05-3238-Q009", "sibling_text": "liner seized how to remove", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L2 · T044-PART_02-G002High", "cross_family": false }, { "answer_id": "CYL-LINER-P03-003", "score": 0.7475013136863708, "sibling_score": 0.7475013136863708, "answer_score": 0.47263505458831784, "sibling_qid": "MUM-2026-07-3848-Q001", "sibling_text": "liner seized how to remove", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Removing a stuck cylinder liner — how, and where do you jack?", "cross_family": false }, { "answer_id": "CYL-LINER-P04-002", "score": 0.6493815779685974, "sibling_score": 0.6493815779685974, "answer_score": null, "sibling_qid": "MUM-2026-03-2952-Q026", "sibling_text": "if liner is stuck as a second engineer what methods u will use to remove the liner", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Judging, measuring, removing & discarding a cylinder liner", "cross_family": false } ] }, { "qid": "KOC-2024-08-1855-Q009", "text": "Ae performance? Ex gas and peak pr deviation reasons", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Decarb / Balancing / High Exhaust Temperature", "tid": "KOC-2024-08-1855", "tray": "new", "candidates": [ { "answer_id": "AE-HOT-BLOW-004", "score": 0.594477117061615, "sibling_score": 0.594477117061615, "answer_score": null, "sibling_qid": "MUM-2025-12-2879-Q006", "sibling_text": "rating of the ae running at low load but exhaust temp are high reason", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Auxiliary engine at low load but exhaust temperatures high — reasons", "cross_family": false }, { "answer_id": "IND-CARD-006", "score": 0.5679589509963989, "sibling_score": 0.5679589509963989, "answer_score": null, "sibling_qid": "KOL-2025-07-1819-Q015", "sibling_text": "a e one unit peak pressure and exhaust temp high reason", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Interpreting Pmax, Pcomp and exhaust-temperature changes for timing and combustion", "cross_family": true }, { "answer_id": "AEDEC-291-008", "score": 0.5435875058174133, "sibling_score": 0.5435875058174133, "answer_score": null, "sibling_qid": "KOL-2019-07-1464-Q005", "sibling_text": "a e after decarb overshoots reasons", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "8. Post-decarb abnormal running — overspeed, RPM, air-start, LO", "cross_family": false } ] }, { "qid": "KOC-2024-08-1855-Q010", "text": "Types of drill bits", "family": "Workshop & Welding", "subtopic": "Pipe Pressure Test", "tid": "KOC-2024-08-1855", "tray": "review", "candidates": [ { "answer_id": "WTGS-325-004", "score": 0.7850506901741028, "sibling_score": 0.7850506901741028, "answer_score": 0.5535287111997604, "sibling_qid": "CHE-2025-08-0415-Q002", "sibling_text": "type of drill bit", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Drill bits & drilling: ordering, portable vs fixed machine", "cross_family": false }, { "answer_id": "BBR-001", "score": 0.6568819880485535, "sibling_score": 0.6568819880485535, "answer_score": null, "sibling_qid": "KOL-2019-10-3280-Q004", "sibling_text": "stud extracting method how to choose drill bit material of drill bit", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "How do you extract a broken or sheared stud/bolt from machinery or structure?", "cross_family": false }, { "answer_id": "METAL-LOCK-002", "score": 0.647121250629425, "sibling_score": 0.647121250629425, "answer_score": null, "sibling_qid": "KOL-2020-02-3326-Q003", "sibling_text": "metal locking what drill bit to use how will u decide", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Metal locking procedure: pockets, keys, stitching pins", "cross_family": false } ] }, { "qid": "KOC-2024-08-1855-Q011", "text": "Types of flanges", "family": "Workshop & Welding", "subtopic": "Pipe Fabrication", "tid": "KOC-2024-08-1855", "tray": "review", "candidates": [ { "answer_id": "PIPEFAB-008", "score": 0.6953000426292419, "sibling_score": 0.6953000426292419, "answer_score": 0.5197134137153625, "sibling_qid": "KOL-2022-01-4004-Q006", "sibling_text": "difference in different types of flanges onboard", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "What are the different types of flange used on board, and how do they differ?", "cross_family": false }, { "answer_id": "PIPE-MAT-008", "score": 0.5997251868247986, "sibling_score": 0.5997251868247986, "answer_score": 0.5200904548168183, "sibling_qid": "KOL-2019-01-3204-Q005", "sibling_text": "flange difference between high pressure and low pressure pipe", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Identifying HP vs LP, and steam vs water, pipe flanges", "cross_family": false }, { "answer_id": "PIPEFAB-007", "score": 0.5622459053993225, "sibling_score": 0.5622459053993225, "answer_score": null, "sibling_qid": "KOL-2018-07-1394-Q006", "sibling_text": "how to make flange from 10 mm thick plate", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "How do you make a flange from a 10 mm thick plate?", "cross_family": false } ] }, { "qid": "KOC-2024-08-1855-Q012", "text": "How to order pipes - normal schedule of sw pipes?", "family": "Workshop & Welding", "subtopic": "Pipe Pressure Test", "tid": "KOC-2024-08-1855", "tray": "review", "candidates": [ { "answer_id": "PIPE-MAT-003", "score": 0.6682618260383606, "sibling_score": 0.6682618260383606, "answer_score": null, "sibling_qid": "KOL-2020-02-1520-Q007", "sibling_text": "pipe specification and ordering what is nd and schedule", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Nominal diameter / bore, ND, NPS — and 100A, 250A", "cross_family": false }, { "answer_id": "PIPE-MAT-004", "score": 0.6365918517112732, "sibling_score": 0.6365918517112732, "answer_score": 0.3465144008398056, "sibling_qid": "KOL-2026-07-4248-Q001", "sibling_text": "pipe schedule in detail", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Pipe schedule and its relation to thickness, ID, OD", "cross_family": false }, { "answer_id": "PIPE-MAT-001", "score": 0.6058498620986938, "sibling_score": 0.6058498620986938, "answer_score": 0.3683492198586464, "sibling_qid": "KOL-2022-03-3524-Q005", "sibling_text": "how to order pipes", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Ordering / specifying a replacement or sea-water pipe", "cross_family": false } ] }, { "qid": "KOC-2024-08-1856-Q001", "text": "Crosshead bearing disassembly", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Crosshead Bearing", "tid": "KOC-2024-08-1856", "tray": "review", "candidates": [ { "answer_id": "XHD-BRG-C-002", "score": 0.8208317756652832, "sibling_score": 0.8208317756652832, "answer_score": 0.6179273515939713, "sibling_qid": "KOC-2021-05-1754-Q004", "sibling_text": "crosshead bearing removal", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "B. Crosshead bearing overhaul and removal: exact steps, tackle, withdrawing the pin", "cross_family": false }, { "answer_id": "XHD-BRG-B-002", "score": 0.8205790519714355, "sibling_score": 0.8205790519714355, "answer_score": null, "sibling_qid": "KOL-2021-11-3474-Q004", "sibling_text": "crosshead bearing removal", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Removing and lowering the crosshead bottom shell — the critical safety measure", "cross_family": false }, { "answer_id": "CXH-BRG-FINAL-1-001", "score": 0.7923818230628967, "sibling_score": 0.7923818230628967, "answer_score": null, "sibling_qid": "KOL-2019-02-3210-Q006", "sibling_text": "cross head bearing removal nd checks", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead bearing survey: open-up, removal & inspection", "cross_family": false } ] }, { "qid": "KOC-2024-08-1856-Q005", "text": "Boiler safety Valve diagram(Upper part) and setting in front of surveyor. Where is compression nut threaded to. Setting pressure", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2024-08-1856", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P01-001", "score": 0.7284719347953796, "sibling_score": 0.7284719347953796, "answer_score": null, "sibling_qid": "KOC-2026-08-2122-Q005", "sibling_text": "boiler safety valve setting in front of surveyor", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.7104577422142029, "sibling_score": 0.7104577422142029, "answer_score": null, "sibling_qid": "CHE-2026-09-3931-Q006", "sibling_text": "boiler safety valve pressure setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "MR-DS-PV-B-006", "score": 0.6785653233528137, "sibling_score": 0.6785653233528137, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q005", "sibling_text": "full bore safety valve diagram", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "6. Deck isolating valve, deck relief/safety devices, and cargo-tank pressure", "cross_family": false } ] }, { "qid": "KOC-2024-08-1857-Q008", "text": "Inspection on Rudder and crack what you do ?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOC-2024-08-1857", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.707872211933136, "sibling_score": 0.707872211933136, "answer_score": null, "sibling_qid": "CHE-2026-03-0495-Q005", "sibling_text": "crack in the rudder as 2eng prepare repair plan internal deciding", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "DUS-P5-05", "score": 0.5298887610435485, "sibling_score": null, "answer_score": 0.5298887610435485, "sibling_qid": "", "sibling_text": "rudder checks and rudder blade tightness leak test in drydock visual checks coating condition cavitation erosion on the blade leading edge propeller side face sacrificial anodes against the approved cathodic protection plan grounding continuity against the approved acceptance criterion plate and weld cracks pintle clearance measured with feeler the numerical acceptance limit is class specific and ", "sibling_family": "", "via": "answer_title", "answer_title": "Rudder checks and rudder-blade tightness/leak test in drydock", "cross_family": false }, { "answer_id": "DDHSC-003", "score": 0.4648126423358917, "sibling_score": null, "answer_score": 0.4648126423358917, "sibling_qid": "", "sibling_text": "what checks do you carry out on the hull propeller and rudder in drydock including jumping clearance hull shell plating cracks coating weld seams thickness gauging areas propeller erosion pitting cavitation cracks dye penetrant cone cap tight rope guard propeller drop wear", "sibling_family": "", "via": "answer_title", "answer_title": "What checks do you carry out on the hull, propeller and rudder in drydock, including jumping clearance?", "cross_family": false } ] }, { "qid": "KOC-2024-08-1858-Q001", "text": "Broken exhaust valve in AE what all checks", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE 4-Stroke Theory", "tid": "KOC-2024-08-1858", "tray": "review", "candidates": [ { "answer_id": "EXHV-297-003", "score": 0.704801082611084, "sibling_score": 0.704801082611084, "answer_score": 0.5830980658531189, "sibling_qid": "MUM-2025-01-2785-Q009", "sibling_text": "what will u inspect if engine exhaust valve is broken", "sibling_family": "2-Stroke - 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Working principle of a three-phase induction motor", "cross_family": false } ] }, { "qid": "KOC-2024-09-1394-Q001", "text": "3 point starter", "family": "Electrical - Motors & Starters", "subtopic": "DC Motor Three-Point Starter", "tid": "KOC-2024-09-1394", "tray": "review", "candidates": [ { "answer_id": "STR-DEC-A-001", "score": 0.7857781052589417, "sibling_score": 0.7857781052589417, "answer_score": null, "sibling_qid": "KOC-2026-04-1752-Q002", "sibling_text": "3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "STARTER-DEC-B-003", "score": 0.7463293671607971, "sibling_score": 0.7463293671607971, "answer_score": null, "sibling_qid": "KOC-2023-04-1255-Q006", "sibling_text": "dol starter 3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "DOL starter — use, current, range and limits", "cross_family": false }, { "answer_id": "SOFT-START-P01-001", "score": 0.6016334295272827, "sibling_score": 0.6016334295272827, "answer_score": null, "sibling_qid": "KOL-2017-07-2140-Q003", "sibling_text": "3 soft starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Soft Starter — Definition, Purpose and Working", "cross_family": false } ] }, { "qid": "KOC-2024-09-1401-Q006", "text": "Draw and explain 3 point starter", "family": "Electrical - Motors & Starters", "subtopic": "DC Motor Three-Point Starter", "tid": "KOC-2024-09-1401", "tray": "review", "candidates": [ { "answer_id": "STR-DEC-A-001", "score": 0.759365975856781, "sibling_score": 0.759365975856781, "answer_score": null, "sibling_qid": "KOC-2026-05-2133-Q010", "sibling_text": "draw and explain 3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "STARTER-DEC-B-003", "score": 0.6062524914741516, "sibling_score": 0.6062524914741516, "answer_score": null, "sibling_qid": "KOC-2023-04-1255-Q006", "sibling_text": "dol starter 3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "DOL starter — use, current, range and limits", "cross_family": false }, { "answer_id": "SDST-A-001", "score": 0.5960819125175476, "sibling_score": 0.5960819125175476, "answer_score": 0.3654998034238815, "sibling_qid": "KOC-2024-10-1415-Q002", "sibling_text": "draw and explain star dela starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false } ] }, { "qid": "KOC-2024-09-1404-Q007", "text": "Draw and explain three point starter", "family": "Electrical - Motors & Starters", "subtopic": "DC Motor Three-Point Starter", "tid": "KOC-2024-09-1404", "tray": "review", "candidates": [ { "answer_id": "STR-DEC-A-001", "score": 0.7888270020484924, "sibling_score": 0.7888270020484924, "answer_score": null, "sibling_qid": "KOC-2026-05-2133-Q010", "sibling_text": "draw and explain 3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "STARTER-DEC-B-003", "score": 0.6227007508277893, "sibling_score": 0.6227007508277893, "answer_score": null, "sibling_qid": "KOC-2023-04-1255-Q006", "sibling_text": "dol starter 3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "DOL starter — use, current, range and limits", "cross_family": false }, { "answer_id": "SDST-A-001", "score": 0.6177910566329956, "sibling_score": 0.6177910566329956, "answer_score": 0.37306512147188187, "sibling_qid": "KOC-2024-10-1415-Q002", "sibling_text": "draw and explain star dela starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false } ] }, { "qid": "KOC-2024-09-1859-Q003", "text": "Safety valve setting of boiler in front of surveyor. Draw only top part,showing upto top spring retainer. Where is compression nut threaded to? (to neck bush)", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2024-09-1859", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P01-001", "score": 0.6940328478813171, "sibling_score": 0.6940328478813171, "answer_score": null, "sibling_qid": "KOC-2026-08-2122-Q005", "sibling_text": "boiler safety valve setting in front of surveyor", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "MR-DS-PV-B-006", "score": 0.6652132868766785, "sibling_score": 0.6652132868766785, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q005", "sibling_text": "full bore safety valve diagram", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "6. Deck isolating valve, deck relief/safety devices, and cargo-tank pressure", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.6603326797485352, "sibling_score": 0.6603326797485352, "answer_score": null, "sibling_qid": "CHE-2026-05-0597-Q020", "sibling_text": "boiler safety valve how the setting is done", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false } ] }, { "qid": "KOC-2024-09-1861-Q002", "text": "Drydock survey intervals", "family": "Surveys - Statutory", "subtopic": "Planned Maintenance / PMS", "tid": "KOC-2024-09-1861", "tray": "review", "candidates": [ { "answer_id": "UWS-391-002", "score": 0.7208428382873535, "sibling_score": 0.7208428382873535, "answer_score": null, "sibling_qid": "KOL-2023-05-0746-Q002", "sibling_text": "underwater survey interval in dry dock", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Interval / period for an underwater (in-water) survey", "cross_family": true }, { "answer_id": "DUS-P3-03", "score": 0.675346851348877, "sibling_score": 0.675346851348877, "answer_score": null, "sibling_qid": "KOC-2025-08-0640-Q005", "sibling_text": "drydock survey period", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Docking survey — scope, period and typical requirements", "cross_family": true }, { "answer_id": "CSM-214-001", "score": 0.6355793476104736, "sibling_score": 0.6355793476104736, "answer_score": null, "sibling_qid": "KOL-2017-07-3064-Q002", "sibling_text": "all surveys in dry dock", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "What CSM is, and why it is called “continuous”", "cross_family": true } ] }, { "qid": "KOC-2024-09-1861-Q004", "text": "Preparation of auxiliary engine major overhaul", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE Decarb", "tid": "KOC-2024-09-1861", "tray": "review", "candidates": [ { "answer_id": "AEDEC-291-001", "score": 0.7235713601112366, "sibling_score": 0.7235713601112366, "answer_score": 0.5200395882129669, "sibling_qid": "KOC-2026-02-1999-Q013", "sibling_text": "any overhauls done on auxiliary engine", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "1. 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Statutory", "subtopic": "ESP / Enhanced Survey", "tid": "KOC-2024-10-0426", "tray": "review", "candidates": [ { "answer_id": "ESP-B-003", "score": 0.6523925065994263, "sibling_score": 0.6523925065994263, "answer_score": 0.35575773417949674, "sibling_qid": "KOC-2024-10-1871-Q001", "sibling_text": "difference between cas and cap survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "CAS and CAP surveys — and how they relate to ESP", "cross_family": false }, { "answer_id": "CSAS-SURV-008", "score": 0.5531802773475647, "sibling_score": 0.5531802773475647, "answer_score": null, "sibling_qid": "KOC-2026-01-0787-Q013", "sibling_text": "cap survey and enhanced survey", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "CAP survey and enhanced (ESP) survey", "cross_family": true }, { "answer_id": "COT-15", "score": 0.49769696593284607, "sibling_score": 0.49769696593284607, "answer_score": 0.28950317203998566, "sibling_qid": "KOL-2025-10-1102-Q005", "sibling_text": "cas cap", "sibling_family": "Cargo Ops - 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Gas values?", "family": "Risk & Safety Management", "subtopic": "Enclosed Space Entry", "tid": "KOC-2024-10-0431", "tray": "review", "candidates": [ { "answer_id": "ESE-P01-009", "score": 0.773382842540741, "sibling_score": 0.773382842540741, "answer_score": 0.5420776963233948, "sibling_qid": "MUM-2026-03-0798-Q005", "sibling_text": "enclosed space entry procedure and gases which we check and limit values", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "Atmosphere checks, gases to test and safe entry limits", "cross_family": false }, { "answer_id": "ESE-P01-001", "score": 0.74619060754776, "sibling_score": 0.74619060754776, "answer_score": null, "sibling_qid": "KOL-2017-02-0064-Q002", "sibling_text": "definition for enclosed space exact definition enclosed space entry procedure in detail what gases are found in an enclosed space what concentration is allowed for man entry", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "Definition and criteria of an enclosed space", "cross_family": false }, { "answer_id": "ESE-P02-002", "score": 0.714711606502533, "sibling_score": 0.714711606502533, "answer_score": null, "sibling_qid": "KOC-2025-10-1583-Q008", "sibling_text": "enclosed space entry what all gas u check and values how o2analyser works", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "ESE-P02-02. Oxygen analyser: working principle and calibration", "cross_family": false } ] }, { "qid": "KOC-2024-10-0431-Q009", "text": "Arrangement in deck pipelines for expansion w.r.t temperature?", "family": "Heat Exchangers & Coolers", "subtopic": "Expansion Arrangement", "tid": "KOC-2024-10-0431", "tray": "new", "candidates": [ { "answer_id": "SH-332-002", "score": 0.6036911606788635, "sibling_score": 0.6036911606788635, "answer_score": null, "sibling_qid": "MUM-2024-07-0960-Q007", "sibling_text": "sh tubes expansion arrangement", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Where superheater tubes are fitted; attachment, support and expansion", "cross_family": true }, { "answer_id": "BLR-TUBE-P01-003", "score": 0.5763790011405945, "sibling_score": 0.5763790011405945, "answer_score": 0.49660290181636807, "sibling_qid": "KOL-2017-04-1287-Q005", "sibling_text": "boiler tubes expansion arrangement", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "02. Thermal expansion arrangements for boiler tubes", "cross_family": true }, { "answer_id": "STHX-001", "score": 0.5559158325195312, "sibling_score": 0.5559158325195312, "answer_score": 0.43077518343925475, "sibling_qid": "KOL-2016-11-3015-Q003", "sibling_text": "shell and tube type plate exchanger material and how is expansion of tubes taken care of", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "STHX-01 — Construction, parts, materials, tube fitting, pass arrangement and flow", "cross_family": false } ] }, { "qid": "KOC-2024-10-0431-Q016", "text": "Fobas calculator Input values to fobas calculator", "family": "MARPOL - General & Compliance", "subtopic": "Marpol Sample / In-Use", "tid": "KOC-2024-10-0431", "tray": "new", "candidates": [ { "answer_id": "SFOC-001", "score": 0.5000142455101013, "sibling_score": 0.5000142455101013, "answer_score": null, "sibling_qid": "KOC-2025-10-1948-Q007", "sibling_text": "sfoc calculations", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What is SFOC? 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Construction & Components", "subtopic": "Exhaust Gas Boiler", "tid": "KOC-2024-10-0929", "tray": "new", "candidates": [ { "answer_id": "UPT-FIRE-003", "score": 0.6344085335731506, "sibling_score": 0.6344085335731506, "answer_score": 0.3709186166524887, "sibling_qid": "KOC-2024-06-1843-Q007", "sibling_text": "egb uptake fire actions", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Fire in the exhaust gas boiler or economiser — actions and instructions to the duty engineers", "cross_family": true }, { "answer_id": "FIRE-P04-05", "score": 0.5620980858802795, "sibling_score": 0.5620980858802795, "answer_score": null, "sibling_qid": "MUM-2023-03-0094-Q004", "sibling_text": "fire in dd actions as 2e if no ce", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fire in dry dock / alongside repair — 2/E stepwise actions", "cross_family": true }, { "answer_id": "SMK-FUNL-BF01-004", "score": 0.5495757460594177, "sibling_score": 0.5495757460594177, "answer_score": 0.3548201218247414, "sibling_qid": "CHE-2026-09-3929-Q001", "sibling_text": "action spark in funnel ege fire", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "There are sparks from the funnel on arrival in port — what is the reason and your action?", "cross_family": true } ] }, { "qid": "KOC-2024-10-1009-Q007", "text": "Draw holding down bolts for Generator", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE Resilient Chock", "tid": "KOC-2024-10-1009", "tray": "new", "candidates": [ { "answer_id": "BED-CHOCK-005", "score": 0.5937824249267578, "sibling_score": 0.5937824249267578, "answer_score": 0.43803760707378386, "sibling_qid": "MUM-2026-06-3475-Q001", "sibling_text": "draw holding down bolts chocks arrangement", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Explain the HDB, jack-bolt and chock arrangement for a main-engine bedplate.", "cross_family": true }, { "answer_id": "FB-COUP-001", "score": 0.5589669346809387, "sibling_score": 0.5589669346809387, "answer_score": null, "sibling_qid": "KOC-2026-09-2175-Q005", "sibling_text": "fitted bolts where", "sibling_family": "2-Stroke - 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(dont know)", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE 4-Stroke Theory", "tid": "KOC-2024-10-1012", "tray": "new", "candidates": [ { "answer_id": "PMAX-PCOMP-BF041-005", "score": 0.6083571910858154, "sibling_score": 0.6083571910858154, "answer_score": null, "sibling_qid": "KOL-2025-07-3836-Q005", "sibling_text": "how can you measure the compression pressure of 4s", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Why do you take compression pressure separately, and what does it tell you about liner and exhaust valve sealing?", "cross_family": true }, { "answer_id": "FPDV-004", "score": 0.605364978313446, "sibling_score": 0.605364978313446, "answer_score": null, "sibling_qid": "KOC-2025-03-1908-Q012", "sibling_text": "ae fuel pump delivery valve tightening torque internal machinery under 3e why you take compression pressure in ae centrifugal pump checks after overhaul cleared fun6 got coc", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Auxiliary-engine fuel-pump delivery-valve tightening torque and check after overhaul", "cross_family": true }, { "answer_id": "AEFP-471-001", "score": 0.5956850647926331, "sibling_score": 0.5956850647926331, "answer_score": 0.46906243562698363, "sibling_qid": "MUM-2025-04-2281-Q003", "sibling_text": "how much ae fuel pump pressure will develop", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "How much pressure does an auxiliary-engine fuel pump develop?", "cross_family": false } ] }, { "qid": "KOC-2024-10-1012-Q013", "text": "degradation of ME lube oil , how it happens and its effects on bearing", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "LO Test / Analysis", "tid": "KOC-2024-10-1012", "tray": "review", "candidates": [ { "answer_id": "LO-TEST-P02-003", "score": 0.7098215222358704, "sibling_score": 0.7098215222358704, "answer_score": null, "sibling_qid": "MUM-2023-02-2164-Q009", "sibling_text": "lub oil have microdegrad your action", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Abnormal LO condition: sump rise, colour, high temperature/pressure, lacquer, deterioration", "cross_family": false }, { "answer_id": "MD-SUMP-001", "score": 0.6267184615135193, "sibling_score": 0.6267184615135193, "answer_score": null, "sibling_qid": "KOL-2023-07-3619-Q003", "sibling_text": "lub oil microbiological degradation", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Microbial degradation of ME sump / system oil — cause, effect, identification, action, prevention", "cross_family": false }, { "answer_id": "CYL-LUB-B-004", "score": 0.5896230936050415, "sibling_score": 0.5896230936050415, "answer_score": null, "sibling_qid": "KOC-2022-07-0968-Q013", "sibling_text": "what are the effects of over lubrication of alkalinity alkaline deposits in piston ring grooves sticky wear down", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Feed rate, over- and under-lubrication, sufficiency checks", "cross_family": false } ] }, { "qid": "KOC-2024-10-1411-Q009", "text": "Diffent types of light fittings in ship", "family": "Electrical - Distribution & MSB", "subtopic": "Lighting / Lamps", "tid": "KOC-2024-10-1411", "tray": "review", "candidates": [ { "answer_id": "LT-SRC-002", "score": 0.6516855359077454, "sibling_score": 0.6516855359077454, "answer_score": null, "sibling_qid": "MUM-2017-01-1322-Q001", "sibling_text": "types of lights on deck", "sibling_family": "", "via": "sibling", "answer_title": "Where is emergency lighting required, and what does SOLAS demand?", "cross_family": false }, { "answer_id": "LT-SRC-003", "score": 0.6409448385238647, "sibling_score": 0.6409448385238647, "answer_score": null, "sibling_qid": "KOC-2023-04-0181-Q017", "sibling_text": "light fittings near life boat requirements", "sibling_family": "", "via": "sibling", "answer_title": "What lighting is required for embarkation, lifeboat areas and survival craft?", "cross_family": false }, { "answer_id": "PLE-468-001", "score": 0.5993700623512268, "sibling_score": 0.5993700623512268, "answer_score": null, "sibling_qid": "KOC-2024-05-0346-Q002", "sibling_text": "speciality of embarkation deck light", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "1. Lifeboat / rescue boat embarkation lighting — requirements and what makes it special (including the embarkation ladder light)", "cross_family": true } ] }, { "qid": "KOC-2024-10-1411-Q010", "text": "Any height requirements for lights outside engine room", "family": "Electrical - Distribution & MSB", "subtopic": "Lighting / Lamps", "tid": "KOC-2024-10-1411", "tray": "new", "candidates": [ { "answer_id": "LT-SRC-003", "score": 0.6172184944152832, "sibling_score": 0.6172184944152832, "answer_score": null, "sibling_qid": "KOC-2023-04-0181-Q017", "sibling_text": "light fittings near life boat requirements", "sibling_family": "", "via": "sibling", "answer_title": "What lighting is required for embarkation, lifeboat areas and survival craft?", "cross_family": false }, { "answer_id": "LT-SRC-012", "score": 0.5767915844917297, "sibling_score": 0.5767915844917297, "answer_score": null, "sibling_qid": "MUM-2017-01-1322-Q006", "sibling_text": "specific location and requirement of such lighting", "sibling_family": "", "via": "sibling", "answer_title": "General lighting-source residual: multi-lamp wiring, location & emergency-source SOLAS", "cross_family": false }, { "answer_id": "PLE-468-001", "score": 0.5675048828125, "sibling_score": 0.5675048828125, "answer_score": 0.46608410477638246, "sibling_qid": "KOC-2025-10-1603-Q008", "sibling_text": "embarkation ladder light requirement", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "1. Lifeboat / rescue boat embarkation lighting — requirements and what makes it special (including the embarkation ladder light)", "cross_family": true } ] }, { "qid": "KOC-2024-10-1412-Q002", "text": "■DC Generator paralleling. Normally how you can reduce voltage in a DC supply line?", "family": "Electrical - Generator & Alternator", "subtopic": "Synchronization", "tid": "KOC-2024-10-1412", "tray": "review", "candidates": [ { "answer_id": "SYNC-C-001", "score": 0.6676793694496155, "sibling_score": 0.6676793694496155, "answer_score": null, "sibling_qid": "KOC-2026-02-1704-Q003", "sibling_text": "dc generator paralleling", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Paralleling generators — procedure, conditions and practical checks", "cross_family": false }, { "answer_id": "SYNC-D-003", "score": 0.6102193593978882, "sibling_score": 0.6102193593978882, "answer_score": null, "sibling_qid": "CHE-2025-07-0265-Q012", "sibling_text": "while llel 2 gen incoming generator voltage is low i said voltage trimmer is provided in the msb or generator can adjust or 5v he need percentage i don t surveyor said 2 5 of rated voltage", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Correct paralleling — checks, the synchroscope & phase angle, voltage trim, interlocks", "cross_family": false }, { "answer_id": "SYNC-C-002", "score": 0.6029598116874695, "sibling_score": 0.6029598116874695, "answer_score": null, "sibling_qid": "KOL-2016-12-0037-Q009", "sibling_text": "paralleling of dg with voltmeter", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Synchronising without a synchroscope — lamp, voltmeter and alternative methods", "cross_family": false } ] }, { "qid": "KOC-2024-10-1412-Q005", "text": "■GMDSS equipments onboard?", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "KOC-2024-10-1412", "tray": "review", "candidates": [ { "answer_id": "UNL-330-001", "score": 0.7618036866188049, "sibling_score": 0.7618036866188049, "answer_score": null, "sibling_qid": "MUM-2026-05-3294-Q006", "sibling_text": "gmdss and gmdss equipment", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "What is the function of the main air compressor unloader?", "cross_family": false }, { "answer_id": "bdc-p05-03", "score": 0.7448117733001709, "sibling_score": 0.7448117733001709, "answer_score": 0.483064329624176, "sibling_qid": "KOC-2026-02-1695-Q006", "sibling_text": "gmdss equipments", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "CQ-BDC-025 GMDSS reserve battery — requirement, supply, voltage and equipment Medium", "cross_family": true }, { "answer_id": "bdc-p05-04", "score": 0.6712665557861328, "sibling_score": 0.6712665557861328, "answer_score": 0.46000711619853973, "sibling_qid": "MUM-2026-06-3591-Q004", "sibling_text": "gmdss and emergency battery", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "CQ-BDC-027 GMDSS, emergency and engine-starting batteries — three systems, three rules Medium", "cross_family": true } ] }, { "qid": "KOC-2024-10-1417-Q006", "text": "Motor terminal box?", "family": "Electrical - Motors & Starters", "subtopic": "Star-Delta Starter", "tid": "KOC-2024-10-1417", "tray": "review", "candidates": [ { "answer_id": "IP-ENCL-001", "score": 0.7875098586082458, "sibling_score": 0.7875098586082458, "answer_score": null, "sibling_qid": "MUM-2026-04-2122-Q003", "sibling_text": "motor number of terminal", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "IP rating of motors — what the numbers mean", "cross_family": false }, { "answer_id": "SOFTSTART-P02-002", "score": 0.7471789717674255, "sibling_score": 0.7471789717674255, "answer_score": null, "sibling_qid": "KOL-2016-10-2075-Q003", "sibling_text": "draw terminal box dia for latest induction motor soft start motors", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Soft starter circuit — draw and explain", "cross_family": false }, { "answer_id": "CONT-317-003", "score": 0.7253598570823669, "sibling_score": 0.7253598570823669, "answer_score": null, "sibling_qid": "MUM-2024-07-1445-Q002", "sibling_text": "motor received overhaul terminal markings have gone how to identify the terminals", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Continuity to confirm terminal identity after overhaul or rewind", "cross_family": false } ] }, { "qid": "KOC-2024-10-1419-Q003", "text": "Motor service factor", "family": "Electrical - Motors & Starters", "subtopic": "Motor Specification / Ordering", "tid": "KOC-2024-10-1419", "tray": "new", "candidates": [ { "answer_id": "BOW-THR-003", "score": 0.6035448908805847, "sibling_score": 0.6035448908805847, "answer_score": null, "sibling_qid": "CHE-2026-02-0341-Q008", "sibling_text": "rating of the motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Bow-thruster motor — type, supply voltage, starter, connection and VFD control", "cross_family": false }, { "answer_id": "IM-TSS-P03-FINAL-1-001", "score": 0.599192202091217, "sibling_score": 0.599192202091217, "answer_score": null, "sibling_qid": "CHE-2025-12-0321-Q002", "sibling_text": "factors affecting motor speed", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Speed control of induction / AC motors — methods and onboard use", "cross_family": false }, { "answer_id": "IRT-C-006", "score": 0.5844969153404236, "sibling_score": 0.5844969153404236, "answer_score": null, "sibling_qid": "MUM-2023-04-1384-Q003", "sibling_text": "ir value of motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Acceptable IR values, the minimum & \"what if it's low\"", "cross_family": false } ] }, { "qid": "KOC-2024-10-1419-Q004", "text": "Intrinsic Safety, Why two zener diodes", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOC-2024-10-1419", "tray": "new", "candidates": [ { "answer_id": "FSF-BF073-004", "score": 0.6041468381881714, "sibling_score": 0.6041468381881714, "answer_score": null, "sibling_qid": "CHE-2026-03-0359-Q001", "sibling_text": "zener diode zener barrier working in intrinsically safe", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a magnetic fail safe?", "cross_family": false }, { "answer_id": "HAZ-EX-B-001", "score": 0.5938410758972168, "sibling_score": 0.5938410758972168, "answer_score": null, "sibling_qid": "CHE-2026-03-0358-Q005", "sibling_text": "zener barrier working in intrinsically safe", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Intrinsically safe (Ex i) equipment — what it is, how it works, where it is used, how you identify it", "cross_family": false }, { "answer_id": "EPC-P02-03", "score": 0.5515905022621155, "sibling_score": 0.5515905022621155, "answer_score": 0.4156225338578224, "sibling_qid": "MUM-2025-09-1653-Q008", "sibling_text": "why is zener diode given", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Where is a zener diode used on board and why — voltage regulator, AVR, clipper — and explain one application in detail.", "cross_family": false } ] }, { "qid": "KOC-2024-10-1422-Q005", "text": "Zener barrier and what is the input supply", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOC-2024-10-1422", "tray": "new", "candidates": [ { "answer_id": "EPC-P02-01", "score": 0.5698409676551819, "sibling_score": 0.5698409676551819, "answer_score": 0.44675013422966003, "sibling_qid": "MUM-2026-06-3633-Q006", "sibling_text": "how it works what is zener barrier applications of zener diode", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a zener diode? Draw its symbol, explain its working principle, and draw and explain its characteristic curve including the zener (breakdown) voltage.", "cross_family": false }, { "answer_id": "FSF-BF073-004", "score": 0.5651443600654602, "sibling_score": 0.5651443600654602, "answer_score": null, "sibling_qid": "CHE-2026-03-0359-Q001", "sibling_text": "zener diode zener barrier working in intrinsically safe", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a magnetic fail safe?", "cross_family": false }, { "answer_id": "EPC-P02-03", "score": 0.5644328594207764, "sibling_score": 0.5644328594207764, "answer_score": 0.4711314499378204, "sibling_qid": "MUM-2026-07-3813-Q002", "sibling_text": "zener barrier full explanation every component", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Where is a zener diode used on board and why — voltage regulator, AVR, clipper — and explain one application in detail.", "cross_family": false } ] }, { "qid": "KOC-2024-10-1422-Q016", "text": "motor terminal connection", "family": "Electrical - Motors & Starters", "subtopic": "Star-Delta Starter", "tid": "KOC-2024-10-1422", "tray": "review", "candidates": [ { "answer_id": "IP-ENCL-001", "score": 0.8066701889038086, "sibling_score": 0.8066701889038086, "answer_score": null, "sibling_qid": "MUM-2026-01-1899-Q009", "sibling_text": "motor number of terminal", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "IP rating of motors — what the numbers mean", "cross_family": false }, { "answer_id": "CONT-317-003", "score": 0.7778463959693909, "sibling_score": 0.7778463959693909, "answer_score": 0.521119287610054, "sibling_qid": "MUM-2026-05-3170-Q005", "sibling_text": "motor came after rewinding no all terminals signs erased how will you connect", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Continuity to confirm terminal identity after overhaul or rewind", "cross_family": false }, { "answer_id": "SDC-001", "score": 0.7633406519889832, "sibling_score": 0.7633406519889832, "answer_score": null, "sibling_qid": "KOC-2021-11-0036-Q013", "sibling_text": "motor connection", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Why is the alternator star connected and the motor delta connected?", "cross_family": true } ] }, { "qid": "KOC-2024-10-1422-Q017", "text": "Why six terminals", "family": "Electrical - Motors & Starters", "subtopic": "Star-Delta Starter", "tid": "KOC-2024-10-1422", "tray": "new", "candidates": [ { "answer_id": "IP-ENCL-001", "score": 0.4457591772079468, "sibling_score": 0.4457591772079468, "answer_score": null, "sibling_qid": "MUM-2026-04-2122-Q003", "sibling_text": "motor number of terminal", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "IP rating of motors — what the numbers mean", "cross_family": false }, { "answer_id": "SDST-A-001", "score": 0.40172258019447327, "sibling_score": 0.40172258019447327, "answer_score": null, "sibling_qid": "KOL-2022-02-2535-Q008", "sibling_text": "6 star delta starter and cross", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false }, { "answer_id": "ISPS-OV-003", "score": 0.39797043800354004, "sibling_score": 0.39797043800354004, "answer_score": null, "sibling_qid": "KOL-2025-09-1051-Q005", "sibling_text": "isps onboard records tell six points", "sibling_family": "ISPS", "via": "sibling", "answer_title": "ISPS onboard records", "cross_family": true } ] }, { "qid": "KOC-2024-10-1423-Q002", "text": "Three point starter draw and explain", "family": "Electrical - Motors & Starters", "subtopic": "DC Motor Three-Point Starter", "tid": "KOC-2024-10-1423", "tray": "review", "candidates": [ { "answer_id": "STR-DEC-A-001", "score": 0.7695749402046204, "sibling_score": 0.7695749402046204, "answer_score": null, "sibling_qid": "KOC-2026-05-2133-Q010", "sibling_text": "draw and explain 3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "STARTER-DEC-B-003", "score": 0.6440481543540955, "sibling_score": 0.6440481543540955, "answer_score": null, "sibling_qid": "KOC-2023-04-1255-Q006", "sibling_text": "dol starter 3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "DOL starter — use, current, range and limits", "cross_family": false }, { "answer_id": "SDST-A-001", "score": 0.579742431640625, "sibling_score": 0.579742431640625, "answer_score": 0.3626107931137085, "sibling_qid": "KOC-2025-01-1459-Q002", "sibling_text": "start delta starter draw explain", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false } ] }, { "qid": "KOC-2024-10-1869-Q003", "text": "How to convert ME engine to LPIG engine by retrofit", "family": "Cargo Ops - Gas Carriers", "subtopic": "Dual Fuel", "tid": "KOC-2024-10-1869", "tray": "new", "candidates": [ { "answer_id": "BIO-FUEL-003", "score": 0.47274836897850037, "sibling_score": 0.47274836897850037, "answer_score": null, "sibling_qid": "KOC-2026-09-2180-Q016", "sibling_text": "conversion of me engine to methanol fuelled engine", "sibling_family": "2-Stroke - ME-C / Electronic Engine", "via": "sibling", "answer_title": "Methanol as a marine fuel and the main-engine modifications it needs", "cross_family": true }, { "answer_id": "EEXI-005", "score": 0.45571041107177734, "sibling_score": 0.45571041107177734, "answer_score": null, "sibling_qid": "KOC-2025-11-1077-Q002", "sibling_text": "epl how it fitted in mcc engine and me engine", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "The Engine Power Limiter — how it is fitted on MC and ME engines, the setpoint, ShaPoLi, the records, and derating to meet EEXI", "cross_family": true }, { "answer_id": "EGTP-P02-005", "score": 0.4386134743690491, "sibling_score": 0.4386134743690491, "answer_score": null, "sibling_qid": "MUM-2026-06-3500-Q002", "sibling_text": "mc vs me engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "MC / MC-C / ME-C and Electronically Controlled Engines", "cross_family": true } ] }, { "qid": "KOC-2024-10-1869-Q004", "text": "Cross head survey", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Crosshead Bearing", "tid": "KOC-2024-10-1869", "tray": "review", "candidates": [ { "answer_id": "CXH-BRG-FINAL-1-001", "score": 0.7670876383781433, "sibling_score": 0.7670876383781433, "answer_score": null, "sibling_qid": "KOL-2018-11-3199-Q001", "sibling_text": "cross head brg survey", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead bearing survey: open-up, removal & inspection", "cross_family": false }, { "answer_id": "XHD-BRG-C-002", "score": 0.7435060739517212, "sibling_score": 0.7435060739517212, "answer_score": null, "sibling_qid": "KOC-2022-03-1782-Q001", "sibling_text": "cross head removal for survey", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "B. Crosshead bearing overhaul and removal: exact steps, tackle, withdrawing the pin", "cross_family": false }, { "answer_id": "XHEAD-303-007", "score": 0.7422583699226379, "sibling_score": 0.7422583699226379, "answer_score": 0.39531047046184536, "sibling_qid": "MUM-2026-03-1287-Q005", "sibling_text": "crosshead survey", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead inspection, survey and overhaul, including in-place overhaul", "cross_family": false } ] }, { "qid": "KOC-2024-10-1869-Q007", "text": "Boiler safety valve setting", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2024-10-1869", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-001", "score": 0.864810049533844, "sibling_score": 0.864810049533844, "answer_score": null, "sibling_qid": "CHE-2026-04-0500-Q005", "sibling_text": "boiler safety valve setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.823114275932312, "sibling_score": 0.823114275932312, "answer_score": null, "sibling_qid": "MUM-2026-03-2935-Q013", "sibling_text": "boiler safety valve setting in presence of surveyor after survey", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.8128049373626709, "sibling_score": 0.8128049373626709, "answer_score": null, "sibling_qid": "KOC-2026-05-0034-Q010", "sibling_text": "boiler safety valve types and how safety valve is set complete procedures", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOC-2024-10-1870-Q001", "text": "Crosshead bearing inspection with piston in place", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Crosshead Bearing", "tid": "KOC-2024-10-1870", "tray": "review", "candidates": [ { "answer_id": "XHD-BRG-C-001", "score": 0.9031328558921814, "sibling_score": 0.9031328558921814, "answer_score": null, "sibling_qid": "KOC-2024-01-1824-Q001", "sibling_text": "crosshead bearing inspection piston in place", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "A. Present the crosshead bottom shell for survey, piston in place", "cross_family": false }, { "answer_id": "XHD-BRG-C-002", "score": 0.8075360059738159, "sibling_score": 0.8075360059738159, "answer_score": null, "sibling_qid": "KOC-2024-01-1825-Q001", "sibling_text": "crosshead bearing removal with piston in place", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "B. Crosshead bearing overhaul and removal: exact steps, tackle, withdrawing the pin", "cross_family": false }, { "answer_id": "CXH-BRG-FINAL-1-001", "score": 0.7845368981361389, "sibling_score": 0.7845368981361389, "answer_score": null, "sibling_qid": "KOL-2018-05-3150-Q004", "sibling_text": "crosshead bearing inspection", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead bearing survey: open-up, removal & inspection", "cross_family": false } ] }, { "qid": "KOC-2024-10-1870-Q004", "text": "EGB fire actions", "family": "Boilers - Operations & Firing", "subtopic": "Uptake Fire", "tid": "KOC-2024-10-1870", "tray": "review", "candidates": [ { "answer_id": "UPT-FIRE-003", "score": 0.6800841689109802, "sibling_score": 0.6800841689109802, "answer_score": 0.350208055973053, "sibling_qid": "KOC-2024-06-1843-Q007", "sibling_text": "egb uptake fire actions", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Fire in the exhaust gas boiler or economiser — actions and instructions to the duty engineers", "cross_family": false }, { "answer_id": "UPT-FIRE-001", "score": 0.5534825921058655, "sibling_score": 0.5534825921058655, "answer_score": null, "sibling_qid": "KOC-2023-08-1819-Q005", "sibling_text": "uptake fire action action", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "The 4/E reports an uptake fire — your actions as 2/E", "cross_family": false }, { "answer_id": "FIRE-P04-05", "score": 0.5504247546195984, "sibling_score": 0.5504247546195984, "answer_score": null, "sibling_qid": "MUM-2023-03-0094-Q004", "sibling_text": "fire in dd actions as 2e if no ce", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fire in dry dock / alongside repair — 2/E stepwise actions", "cross_family": true } ] }, { "qid": "KOC-2024-10-1872-Q005", "text": "Few questions abt iron carbide an", "family": "NDT & Material Testing", "subtopic": "Iron-Carbon Diagram", "tid": "KOC-2024-10-1872", "tray": "new", "candidates": [ { "answer_id": "ICD-065-001", "score": 0.6037866473197937, "sibling_score": 0.6037866473197937, "answer_score": 0.3681332394480705, "sibling_qid": "MUM-2026-09-3887-Q005", "sibling_text": "explain iron carbide diagram", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Draw and explain the iron-carbon diagram in full detail", "cross_family": false }, { "answer_id": "MATPROP-A-001", "score": 0.5618443489074707, "sibling_score": 0.5618443489074707, "answer_score": null, "sibling_qid": "KOL-2026-02-2042-Q002", "sibling_text": "what is tool steel asking about the range of carbon", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Steel types and composition", "cross_family": false }, { "answer_id": "HT-TCS-B-003", "score": 0.5296794176101685, "sibling_score": 0.5296794176101685, "answer_score": null, "sibling_qid": "KOL-2021-04-1584-Q009", "sibling_text": "what metal is best for hardening which steel is good for hardening few more question was there but all are from material and composition part only", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Hardening — purpose, suitable materials and components", "cross_family": false } ] }, { "qid": "KOC-2024-10-2054-Q004", "text": "Boiler flame failure,what action you will take", "family": "Boilers - Operations & Firing", "subtopic": "Boiler Backfire / Blowback", "tid": "KOC-2024-10-2054", "tray": "review", "candidates": [ { "answer_id": "BFM-330-001", "score": 0.7935994863510132, "sibling_score": 0.7935994863510132, "answer_score": 0.5774962037801742, "sibling_qid": "CHE-2026-08-0661-Q005", "sibling_text": "what are the action and trouble shoot will u take if flame failure in boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler flame failure or burner not firing — troubleshooting", "cross_family": false }, { "answer_id": "BFEYE-340-001", "score": 0.7346259951591492, "sibling_score": 0.7346259951591492, "answer_score": null, "sibling_qid": "KOL-2018-03-3127-Q004", "sibling_text": "boiler flame failure reason and checks", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Flame failure: why it is a boiler safety, trip logic, alarm and testing", "cross_family": false }, { "answer_id": "UPT-FIRE-001", "score": 0.733562707901001, "sibling_score": 0.733562707901001, "answer_score": null, "sibling_qid": "KOL-2019-11-3288-Q002", "sibling_text": "actions as 2 e on boiler uptake fire", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "The 4/E reports an uptake fire — your actions as 2/E", "cross_family": false } ] }, { "qid": "KOC-2024-10-2054-Q012", "text": "Draw cross section of Oil tanker midship section and explain", "family": "Tanker Construction", "subtopic": "Oil Tanker Midship Section", "tid": "KOC-2024-10-2054", "tray": "review", "candidates": [ { "answer_id": "SHIPTYPE-BTC-004", "score": 0.7679131627082825, "sibling_score": 0.7679131627082825, "answer_score": null, "sibling_qid": "KOC-2024-06-0349-Q003", "sibling_text": "oil tanker midship section diagram", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Oil tanker hull construction — and its construction-related electrical safety", "cross_family": true }, { "answer_id": "SHELL-PLT-A-003", "score": 0.7460774779319763, "sibling_score": 0.7460774779319763, "answer_score": 0.54917733669281, "sibling_qid": "KOC-2026-02-2091-Q005", "sibling_text": "draw c s of the midship section of the tanker mark all the important members", "sibling_family": "", "via": "sibling", "answer_title": "The midship section — shell members you must mark", "cross_family": false }, { "answer_id": "COT-04", "score": 0.5779240101575851, "sibling_score": null, "answer_score": 0.5779240101575851, "sibling_qid": "", "sibling_text": "chemical tanker midship section and cargo tank construction label the basic hull keel bottom shell inner bottom bilge side shell and inner skin double side as fitted label cargo tank boundaries longitudinal transverse bulkheads deck vents domes cofferdams voids where required and the approved cargo pump arrangement", "sibling_family": "", "via": "answer_title", "answer_title": "Chemical-tanker midship section and cargo-tank construction", "cross_family": false } ] }, { "qid": "KOC-2024-10-2054-Q017", "text": "Life boat engine requirements", "family": "SOLAS - LSA & Lifeboats", "subtopic": "LSA Code", "tid": "KOC-2024-10-2054", "tray": "review", "candidates": [ { "answer_id": "LB-REQ-B-001", "score": 0.824783980846405, "sibling_score": 0.824783980846405, "answer_score": 0.5751855731010437, "sibling_qid": "KOC-2024-10-0439-Q005", "sibling_text": "life boat engine requirements", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat engine — SOLAS / LSA requirements (and what makes it special)", "cross_family": false }, { "answer_id": "LB-REQ-B-002", "score": 0.7416282296180725, "sibling_score": 0.7416282296180725, "answer_score": 0.5967001199722289, "sibling_qid": "KOL-2025-09-1035-Q003", "sibling_text": "lifeboat engine capacity as per solas", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Engine output, speed, endurance & the 5-minute cooling rule", "cross_family": false }, { "answer_id": "LB-SURV-C-008", "score": 0.5829565614461899, "sibling_score": null, "answer_score": 0.5829565614461899, "sibling_qid": "", "sibling_text": "lifeboat engine checks cold climate preparation and self contained air support system engine diesel start within about 2 min designed down to about 15 c ambient at least 6 knots loaded fuel for at least 24 h manual and battery start routine fuel quantity and grade lube and coolant filters battery charge clean start ahead astern run cooling confirmed", "sibling_family": "", "via": "answer_title", "answer_title": "Lifeboat engine — checks, cold-climate preparation and self-contained air-support system", "cross_family": false } ] }, { "qid": "KOC-2024-10-2054-Q018", "text": "ISM Chapter’s", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOC-2024-10-2054", "tray": "review", "candidates": [ { "answer_id": "ISM-ELEM-003", "score": 0.6522205471992493, "sibling_score": 0.6522205471992493, "answer_score": 0.4493856728076935, "sibling_qid": "KOC-2026-09-2206-Q001", "sibling_text": "ism chapter", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": false }, { "answer_id": "ISM-AUD-P02-002", "score": 0.602386474609375, "sibling_score": 0.602386474609375, "answer_score": null, "sibling_qid": "KOL-2019-02-3209-Q005", "sibling_text": "ism chapters specifically how many numbers", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM Code — what it is, purpose, objectives and structure", "cross_family": false }, { "answer_id": "ISPS-SSP-P02-001", "score": 0.5128451585769653, "sibling_score": 0.5128451585769653, "answer_score": null, "sibling_qid": "KOC-2026-08-2116-Q004", "sibling_text": "ssp chapters", "sibling_family": "ISPS", "via": "sibling", "answer_title": "Ship Security Plan (SSP) — purpose, scope and contents", "cross_family": true } ] }, { "qid": "KOC-2024-10-2055-Q013", "text": "Loads acting transverse girder", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Bedplate / A-Frame", "tid": "KOC-2024-10-2055", "tray": "review", "candidates": [ { "answer_id": "FWFB-P02-008", "score": 0.6778115034103394, "sibling_score": 0.6778115034103394, "answer_score": 0.5221662580966949, "sibling_qid": "KOC-2025-07-1046-Q003", "sibling_text": "forces acting on transverse girder", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Forces and stresses on transverse girders; action for cracks", "cross_family": true }, { "answer_id": "FWFB-P02-007", "score": 0.6468439698219299, "sibling_score": 0.6468439698219299, "answer_score": 0.48789908885955807, "sibling_qid": "MUM-2026-05-3163-Q003", "sibling_text": "material of transverse girders", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Transverse and longitudinal girders: arrangement and purpose", "cross_family": false }, { "answer_id": "KGF-A-005", "score": 0.44855848252773284, "sibling_score": null, "answer_score": 0.44855848252773284, "sibling_qid": "", "sibling_text": "strengthening members longitudinal transverse strength", "sibling_family": "", "via": "answer_title", "answer_title": "Strengthening members & longitudinal / transverse strength", "cross_family": false } ] }, { "qid": "KOC-2024-10-2056-Q005", "text": "Full bore safety valve construction", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2024-10-2056", "tray": "review", "candidates": [ { "answer_id": "MR-DS-PV-B-006", "score": 0.83342045545578, "sibling_score": 0.83342045545578, "answer_score": null, "sibling_qid": "KOC-2026-09-2180-Q009", "sibling_text": "full bore safety valve construction", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "6. Deck isolating valve, deck relief/safety devices, and cargo-tank pressure", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.7682384848594666, "sibling_score": 0.7682384848594666, "answer_score": null, "sibling_qid": "KOC-2026-05-2142-Q007", "sibling_text": "full bore safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACRV-005", "score": 0.6438211798667908, "sibling_score": 0.6438211798667908, "answer_score": null, "sibling_qid": "MUM-2026-06-3549-Q005", "sibling_text": "boiler safety valve maximum questions", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": false } ] }, { "qid": "KOC-2024-10-2056-Q008", "text": "X hd bearing overhaul", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Crosshead Bearing", "tid": "KOC-2024-10-2056", "tray": "review", "candidates": [ { "answer_id": "XHD-BRG-C-002", "score": 0.7166653275489807, "sibling_score": 0.7166653275489807, "answer_score": 0.509871232509613, "sibling_qid": "KOC-2026-09-2179-Q015", "sibling_text": "crosshead bearing overhaul", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "B. Crosshead bearing overhaul and removal: exact steps, tackle, withdrawing the pin", "cross_family": false }, { "answer_id": "XHD-BRG-B-002", "score": 0.7150748372077942, "sibling_score": 0.7150748372077942, "answer_score": null, "sibling_qid": "KOL-2022-02-3516-Q005", "sibling_text": "crosshead bearing lower half overhaul", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Removing and lowering the crosshead bottom shell — the critical safety measure", "cross_family": false }, { "answer_id": "CXH-BRG-FINAL-1-001", "score": 0.7150060534477234, "sibling_score": 0.7150060534477234, "answer_score": null, "sibling_qid": "MUM-2026-03-2930-Q007", "sibling_text": "crosshead bearing overhaul", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead bearing survey: open-up, removal & inspection", "cross_family": false } ] }, { "qid": "KOC-2024-10-2056-Q012", "text": "Setting of blr safety vv in front of surveyor", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2024-10-2056", "tray": "new", "candidates": [ { "answer_id": "BLR-SURV-P01-001", "score": 0.635824978351593, "sibling_score": 0.635824978351593, "answer_score": null, "sibling_qid": "KOC-2026-09-2205-Q019", "sibling_text": "setting safety valve infront of surveyor", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BOT-001", "score": 0.4435160756111145, "sibling_score": 0.4435160756111145, "answer_score": null, "sibling_qid": "MUM-2026-06-3546-Q004", "sibling_text": "actual blackout test in front of surveyor and precautions to taken before simulate", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "How do you carry out and demonstrate the blackout test in front of the surveyor — procedure, simulation, precautions before simulating, and what happens to machinery on the emergency switchboard?", "cross_family": true }, { "answer_id": "ACCT-583-B-FINAL-1-003", "score": 0.4368159770965576, "sibling_score": 0.4368159770965576, "answer_score": null, "sibling_qid": "KOL-2026-02-2040-Q006", "sibling_text": "boiler safety v v setting boiler accumulation pr test", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "The accumulation test and the safety valve — required lift, how lift and capacity are verified, and why accumulation must stay inside the limit", "cross_family": false } ] }, { "qid": "KOC-2024-10-2056-Q013", "text": "Draw blr safety valve diagram", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2024-10-2056", "tray": "review", "candidates": [ { "answer_id": "MR-DS-PV-B-006", "score": 0.6983348727226257, "sibling_score": 0.6983348727226257, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q005", "sibling_text": "full bore safety valve diagram", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "6. Deck isolating valve, deck relief/safety devices, and cargo-tank pressure", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.6584678292274475, "sibling_score": 0.6584678292274475, "answer_score": null, "sibling_qid": "KOC-2026-09-2173-Q003", "sibling_text": "improved high lift safety valve diagram", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "BLR-MANHOLE-004", "score": 0.6358144283294678, "sibling_score": 0.6358144283294678, "answer_score": null, "sibling_qid": "KOC-2024-03-0991-Q001", "sibling_text": "draw boiler manhole door spigot clearance n significance need a neat diagram", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Manhole door drawing, construction, and spigot clearance + significance", "cross_family": false } ] }, { "qid": "KOC-2024-11-0445-Q003", "text": "TPA and Immersion suit", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Solas Pack A / B", "tid": "KOC-2024-11-0445", "tray": "new", "candidates": [ { "answer_id": "LB-SURV-C-003", "score": 0.5224323272705078, "sibling_score": 0.5224323272705078, "answer_score": null, "sibling_qid": "CHE-2026-02-0103-Q002", "sibling_text": "immersion suit monthly 6 month and annual maintenance", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Routine maintenance ladder — weekly / monthly / quarterly / 6-monthly onboard checks", "cross_family": false }, { "answer_id": "SCBA-EEBD-005", "score": 0.4761502146720886, "sibling_score": 0.4761502146720886, "answer_score": 0.38015832751989365, "sibling_qid": "KOL-2017-01-0042-Q005", "sibling_text": "difference between firemans outfit ppa immerssion suit when it is used", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fireman's outfit vs PPA vs immersion suit — what each is, when used", "cross_family": true }, { "answer_id": "LSA-LB-A-008", "score": 0.44672226905822754, "sibling_score": 0.44672226905822754, "answer_score": null, "sibling_qid": "CHE-2025-12-0328-Q005", "sibling_text": "lifeboat sprinkler system testing without immersing into water", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Water-spray (sprinkler) system — testing without launching", "cross_family": false } ] }, { "qid": "KOC-2024-11-0445-Q004", "text": "Draw rudder", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOC-2024-11-0445", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.6543861031532288, "sibling_score": 0.6543861031532288, "answer_score": null, "sibling_qid": "MUM-2026-05-3150-Q003", "sibling_text": "rudder internal painting", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "HULL-PAINT-002", "score": 0.6543861031532288, "sibling_score": 0.6543861031532288, "answer_score": null, "sibling_qid": "CHE-2026-02-0110-Q012", "sibling_text": "rudder internal painting", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Types of hull coating, the paint scheme by section, and why each is used", "cross_family": false }, { "answer_id": "DUS-P5-03", "score": 0.6239492893218994, "sibling_score": 0.6239492893218994, "answer_score": 0.42324487417936324, "sibling_qid": "KOC-2024-12-2058-Q002", "sibling_text": "draw aft portion of the ship without propeller and rudder in it show the rudder axis which pass through the structure", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Stern frame construction, cross-section and rudder-axis sketch", "cross_family": true } ] }, { "qid": "KOC-2024-11-0446-Q006", "text": "Lrit and ais", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "KOC-2024-11-0446", "tray": "new", "candidates": [ { "answer_id": "EPIRB-SART-002", "score": 0.46526917815208435, "sibling_score": 0.46526917815208435, "answer_score": 0.2740349620580673, "sibling_qid": "CHE-2026-05-0535-Q007", "sibling_text": "sart and ais sart", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What is an AIS-SART and how does it differ from a radar SART?", "cross_family": true }, { "answer_id": "IACS-324-001", "score": 0.37840989232063293, "sibling_score": 0.37840989232063293, "answer_score": 0.2010458692908287, "sibling_qid": "KOC-2025-02-0543-Q001", "sibling_text": "iacs", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "1. What is IACS and what are its functions?", "cross_family": true }, { "answer_id": "TONN-007", "score": 0.3609864115715027, "sibling_score": 0.3609864115715027, "answer_score": null, "sibling_qid": "KOC-2021-11-0038-Q009", "sibling_text": "grt and nrt", "sibling_family": "", "via": "sibling", "answer_title": "Differentiate GT, NT, GRT/NRT, DWT, Lightweight and Displacement", "cross_family": false } ] }, { "qid": "KOC-2024-11-0450-Q002", "text": "All mlc titles and explain chapter 2", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOC-2024-11-0450", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.6165499091148376, "sibling_score": 0.6165499091148376, "answer_score": null, "sibling_qid": "KOC-2026-05-2135-Q011", "sibling_text": "mlc titles explain title 1 explain dmlc part 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "SOLAS-CH-003", "score": 0.4732644259929657, "sibling_score": 0.4732644259929657, "answer_score": null, "sibling_qid": "KOC-2025-05-2065-Q008", "sibling_text": "explain solas chapter 2 of 2", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS Chapter II-2 - fire protection, detection and extinction", "cross_family": true }, { "answer_id": "SOLAS-CH-002", "score": 0.46754658222198486, "sibling_score": 0.46754658222198486, "answer_score": 0.28418219089508057, "sibling_qid": "KOC-2024-04-0331-Q006", "sibling_text": "solas chapter 2 explain and some cross question", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS Chapter II-1 - construction, machinery and electrical installations", "cross_family": true } ] }, { "qid": "KOC-2024-11-0450-Q006", "text": "Dmlc part 1&2 explain", "family": "MLC", "subtopic": "MLC / DMLC / Work-Rest", "tid": "KOC-2024-11-0450", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.674229085445404, "sibling_score": 0.674229085445404, "answer_score": 0.27684731781482697, "sibling_qid": "KOC-2025-12-0758-Q009", "sibling_text": "dmlc part1 and part2 explain", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "EPC-P03-004", "score": 0.2582688480615616, "sibling_score": null, "answer_score": 0.2582688480615616, "sibling_qid": "", "sibling_text": "what is ladder logic explain a ladder diagram and ladder programming with a simple example two rails rungs scanned top to bottom input contacts on the left output coil on the right series and parallel or", "sibling_family": "", "via": "answer_title", "answer_title": "What is ladder logic? 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Side-shell hole or hull breach at the waterline: emergency action and repair", "cross_family": true }, { "answer_id": "HULL-DD-006", "score": 0.6346148252487183, "sibling_score": 0.6346148252487183, "answer_score": 0.5392924964427948, "sibling_qid": "CHE-2025-07-0404-Q003", "sibling_text": "dent on your ship how to report to office", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "7. Hull damage / collision / dent reporting and shell-plating designation", "cross_family": true } ] }, { "qid": "KOC-2024-11-0455-Q004", "text": "Condition of class", "family": "Surveys - Statutory", "subtopic": "Condition of Class", "tid": "KOC-2024-11-0455", "tray": "review", "candidates": [ { "answer_id": "COC-001", "score": 0.8516560792922974, "sibling_score": 0.8516560792922974, "answer_score": 0.3839318796992302, "sibling_qid": "KOC-2026-04-0899-Q005", "sibling_text": "condition of class", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is a Condition of Class? 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What is a Recognized Organization, how is it recognized by a flag State, and how can a classification society become one?", "cross_family": false } ] }, { "qid": "KOC-2024-11-0460-Q005", "text": "What is sheer, camber of ship", "family": "SOLAS", "subtopic": "Deck Camber / Sheer", "tid": "KOC-2024-11-0460", "tray": "new", "candidates": [ { "answer_id": "SHELL-PLT-B-001", "score": 0.6215943694114685, "sibling_score": 0.6215943694114685, "answer_score": 0.4675258994102478, "sibling_qid": "KOC-2026-03-0880-Q005", "sibling_text": "show sheer strake keel plate camber ballast tank from diagram", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Sheer strake — location, why strengthened, deck-edge / gunwale connection", "cross_family": false }, { "answer_id": "BK-005", "score": 0.561087965965271, "sibling_score": 0.561087965965271, "answer_score": null, "sibling_qid": "KOC-2024-04-0334-Q002", "sibling_text": "midship cross section of last ship what is tumble camber sheer strake bilge keel why bilge keel not throughout how you decide size of bilge keel purpose of bilge keel", "sibling_family": "", "via": "sibling", "answer_title": "Where is the bilge keel shown on a ship cross-section or midship-section drawing?", "cross_family": false }, { "answer_id": "GA-GI-DWG-003", "score": 0.5378431677818298, "sibling_score": 0.5378431677818298, "answer_score": 0.47158104181289673, "sibling_qid": "KOL-2025-07-1000-Q002", "sibling_text": "sheer plan for naval structure", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "3. 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0.4815865635871887, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.6595484614372253, "sibling_score": 0.6595484614372253, "answer_score": null, "sibling_qid": "KOL-2026-05-4096-Q002", "sibling_text": "rudder construction welding painting pressure test", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "HULL-PAINT-002", "score": 0.622358500957489, "sibling_score": 0.622358500957489, "answer_score": null, "sibling_qid": "CHE-2026-02-0110-Q012", "sibling_text": "rudder internal painting", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Types of hull coating, the paint scheme by section, and why each is used", "cross_family": false } ] }, { "qid": "KOC-2024-11-0473-Q004", "text": "camber,rise of floor, timble home", "family": "SOLAS", "subtopic": "Keel & Framing", "tid": "KOC-2024-11-0473", "tray": "new", "candidates": [ { "answer_id": "KEEL-FRM-B-003", "score": 0.5218216180801392, "sibling_score": 0.5218216180801392, "answer_score": 0.3851196959614754, "sibling_qid": "KOL-2020-06-0412-Q003", "sibling_text": "rise of floor from where it rises", "sibling_family": "", "via": "sibling", "answer_title": "Rise of floor, camber, deadrise & hull-form terms", "cross_family": false }, { "answer_id": "SHELL-PLT-B-001", "score": 0.44068676233291626, "sibling_score": 0.44068676233291626, "answer_score": null, "sibling_qid": "KOL-2017-01-0050-Q006", "sibling_text": "what is sheer stringer plate camber", "sibling_family": "", "via": "sibling", "answer_title": "Sheer strake — location, why strengthened, deck-edge / gunwale connection", "cross_family": false }, { "answer_id": "PPS-230-006", "score": 0.4393880367279053, "sibling_score": 0.4393880367279053, "answer_score": null, "sibling_qid": "KOL-2021-01-0461-Q001", "sibling_text": "intercostal girder solid floor panting stringers", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Fore-end / fore-peak structure: draw and describe", "cross_family": false } ] }, { "qid": "KOC-2024-11-0473-Q008", "text": "Rudder drawing showing its support at bottom and top", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOC-2024-11-0473", "tray": "new", "candidates": [ { "answer_id": "TRS-002", "score": 0.6484220623970032, "sibling_score": 0.6484220623970032, "answer_score": 0.4210721254348755, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "DUS-P5-03", "score": 0.6357195377349854, "sibling_score": 0.6357195377349854, "answer_score": 0.47430412769317626, "sibling_qid": "KOC-2024-12-2058-Q002", "sibling_text": "draw aft portion of the ship without propeller and rudder in it show the rudder axis which pass through the structure", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Stern frame construction, cross-section and rudder-axis sketch", "cross_family": true }, { "answer_id": "HULL-PAINT-002", "score": 0.6309338212013245, "sibling_score": 0.6309338212013245, "answer_score": null, "sibling_qid": "CHE-2026-02-0110-Q012", "sibling_text": "rudder internal painting", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Types of hull coating, the paint scheme by section, and why each is 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"cross_family": false } ] }, { "qid": "KOC-2024-11-0474-Q006", "text": "Stern diagram", "family": "Ship Construction & Stability", "subtopic": "Stern Frame / Transom", "tid": "KOC-2024-11-0474", "tray": "review", "candidates": [ { "answer_id": "DUS-P5-03", "score": 0.6505515575408936, "sibling_score": 0.6505515575408936, "answer_score": null, "sibling_qid": "KOC-2021-07-0010-Q005", "sibling_text": "stern frame diagram", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Stern frame construction, cross-section and rudder-axis sketch", "cross_family": true }, { "answer_id": "STS-P02-003", "score": 0.6217262744903564, "sibling_score": 0.6217262744903564, "answer_score": 0.3928343206644058, "sibling_qid": "KOC-2023-01-1806-Q011", "sibling_text": "stern tube diagram", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "STS-P02-03 - Stern tube arrangement, fitting in hull and shaft support", "cross_family": true }, { 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Two paralleled generators sharing unequal load — cause and correction", "cross_family": true } ] }, { "qid": "KOC-2024-11-0478-Q004", "text": "What is the new convention coming up in the industry", "family": "Other Conventions", "subtopic": "New July 2025 Convention", "tid": "KOC-2024-11-0478", "tray": "new", "candidates": [ { "answer_id": "HKC-IHM-A-002", "score": 0.5355793833732605, "sibling_score": 0.5355793833732605, "answer_score": null, "sibling_qid": "MUM-2025-11-2864-Q011", "sibling_text": "tell latest convention hongkong", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "HKC status, entry into force and recent references", "cross_family": false }, { "answer_id": "BWMS-A-004", "score": 0.5131992697715759, "sibling_score": 0.5131992697715759, "answer_score": null, "sibling_qid": "KOL-2023-02-0716-Q004", "sibling_text": "bwm convention latest changes", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Amendments and protocol updates", "cross_family": false }, { "answer_id": "AFS-309-001", "score": 0.49230146408081055, "sibling_score": 0.49230146408081055, "answer_score": 0.21746425628662108, "sibling_qid": "KOC-2022-08-0084-Q007", "sibling_text": "afs convention why it came", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "The AFS Convention — what it is, why it came, what it controls", "cross_family": false } ] }, { "qid": "KOC-2024-11-1014-Q009", "text": "Safety mountings on boiler and specifically related UMS class ship what are all safety equipments on boiler?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2024-11-1014", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-008", "score": 0.7522328495979309, "sibling_score": 0.7522328495979309, "answer_score": null, "sibling_qid": "MUM-2026-05-3078-Q008", "sibling_text": "safeties on boiler", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.6986472606658936, "sibling_score": 0.6986472606658936, "answer_score": null, "sibling_qid": "MUM-2026-06-3405-Q016", "sibling_text": "boiler safety valve type on last vessel lift of it", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "BLR-ALM-001", "score": 0.687641441822052, "sibling_score": 0.687641441822052, "answer_score": null, "sibling_qid": "KOL-2026-07-4277-Q002", "sibling_text": "boilers alrams n trips", "sibling_family": "Boilers - 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Purpose of mixing coloum", "family": "Boilers - Construction & Components", "subtopic": "Cascade Tank / Condenser", "tid": "KOC-2024-11-1017", "tray": "review", "candidates": [ { "answer_id": "PUR-BOWL-P03-FINAL-1-002", "score": 0.6966515779495239, "sibling_score": 0.6966515779495239, "answer_score": null, "sibling_qid": "KOL-2025-03-1972-Q006", "sibling_text": "purpose of mixing column", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "2. 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Topside, upper hopper and lower hopper tanks", "cross_family": true } ] }, { "qid": "KOC-2024-11-1017-Q003", "text": "Swell and shrinkage of boiler& priming", "family": "Boilers - Operations & Firing", "subtopic": "Boiler Backfire / Blowback", "tid": "KOC-2024-11-1017", "tray": "review", "candidates": [ { "answer_id": "DP-TX-006", "score": 0.7260769009590149, "sibling_score": 0.7260769009590149, "answer_score": 0.5338823974132537, "sibling_qid": "KOL-2025-08-2012-Q004", "sibling_text": "swell and shrink in boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler swell and shrink in relation to DP level measurement and control", "cross_family": false }, { "answer_id": "LWL-004", "score": 0.6556799411773682, "sibling_score": 0.6556799411773682, "answer_score": 0.5546023815870285, "sibling_qid": "KOL-2021-08-3446-Q003", "sibling_text": "what is swell and shrinkage how swell and shrinkage is nullified in boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "What are swell and shrinkage, and how are they nullified in the boiler?", "cross_family": false }, { "answer_id": "BLR-TUBE-P01-003", "score": 0.5871038436889648, "sibling_score": 0.5871038436889648, "answer_score": null, "sibling_qid": "KOL-2020-11-1557-Q002", "sibling_text": "small boiler tube expansion", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "02. Thermal expansion arrangements for boiler tubes", "cross_family": true } ] }, { "qid": "KOC-2024-11-1424-Q002", "text": "3 point starter", "family": "Electrical - Motors & Starters", "subtopic": "DC Motor Three-Point Starter", "tid": "KOC-2024-11-1424", "tray": "review", "candidates": [ { "answer_id": "STR-DEC-A-001", "score": 0.7858360409736633, "sibling_score": 0.7858360409736633, "answer_score": null, "sibling_qid": "KOC-2026-02-1709-Q002", "sibling_text": "3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "STARTER-DEC-B-003", "score": 0.7460927963256836, "sibling_score": 0.7460927963256836, "answer_score": null, "sibling_qid": "KOC-2023-04-1255-Q006", "sibling_text": "dol starter 3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "DOL starter — use, current, range and limits", "cross_family": false }, { "answer_id": "SOFT-START-P01-001", "score": 0.6009575724601746, "sibling_score": 0.6009575724601746, "answer_score": null, "sibling_qid": "KOL-2017-07-2140-Q003", "sibling_text": "3 soft starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Soft Starter — Definition, Purpose and Working", "cross_family": false } ] }, { "qid": "KOC-2024-11-1425-Q009", "text": "where is it written regarding the carrying of ballast water in cargo holds", "family": "Other Conventions", "subtopic": "Ballast Water Convention / BWM / BWMS", "tid": "KOC-2024-11-1425", "tray": "review", "candidates": [ { "answer_id": "BWM-P01-002", "score": 0.6841787695884705, "sibling_score": 0.6841787695884705, "answer_score": null, "sibling_qid": "CHE-2026-05-0532-Q008", "sibling_text": "ballast water convention when in adopted explain ballast water convention", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "BWMS-STD-B-002", "score": 0.6774994730949402, "sibling_score": 0.6774994730949402, "answer_score": null, "sibling_qid": "MUM-2026-01-0676-Q006", "sibling_text": "ballast water d2 requirements", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "D-2 Ballast Water Performance Standard & how compliance is checked / sampled", "cross_family": false }, { "answer_id": "BWM-D1D2-P03-001", "score": 0.6736781001091003, "sibling_score": 0.6736781001091003, "answer_score": null, "sibling_qid": "KOC-2025-01-0505-Q004", "sibling_text": "ballast regulations details d2", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Regulation D-2 — ballast water performance / discharge standardHigh", "cross_family": false } ] }, { "qid": "KOC-2024-11-1426-Q001", "text": "Brush less alternator diagram and working", "family": "Electrical - Generator & Alternator", "subtopic": "Brushless Alternator", "tid": "KOC-2024-11-1426", "tray": "review", "candidates": [ { "answer_id": "BRUSHALT-A-001", "score": 0.7896276116371155, "sibling_score": 0.7896276116371155, "answer_score": 0.5913351118564606, "sibling_qid": "MUM-2026-05-3324-Q003", "sibling_text": "brushless alternator working", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01 · Working principle of the brushless alternator / brushless excitation systemHigh", "cross_family": false }, { "answer_id": "ALT-GEN-P03-003", "score": 0.5885460615158081, "sibling_score": null, "answer_score": 0.5885460615158081, "sibling_qid": "", "sibling_text": "brushless alternator advantages and brushed vs brushless comparison brushed dc excitation reaches rotor through brushes and slip rings brushless avr feeds exciter field exciter output is rectified by rotating diodes to feed main rotor", "sibling_family": "", "via": "answer_title", "answer_title": "Brushless alternator advantages and brushed vs brushless comparison", "cross_family": false }, { "answer_id": "BL-ALT-C-002", "score": 0.5821692943572998, "sibling_score": null, "answer_score": 0.5821692943572998, "sibling_qid": "", "sibling_text": "how to identify onboard that an alternator is brushless open the exciter non drive end cover no brushes no brush boxes or springs no slip rings no carbon dust brushless defining proof no slip rings on the main rotor a visible shaft mounted rotating rectifier diode wheel plus surge suppressor", "sibling_family": "", "via": "answer_title", "answer_title": "How to identify onboard that an alternator is brushless", "cross_family": false } ] }, { "qid": "KOC-2024-11-1427-Q004", "text": "Hazardous environment protection standard", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOC-2024-11-1427", "tray": "new", "candidates": [ { "answer_id": "BUNK-PLAN-002", "score": 0.6272563338279724, "sibling_score": 0.6272563338279724, "answer_score": 0.46490621864795684, "sibling_qid": "KOL-2024-11-3725-Q004", "sibling_text": "bunker safety precautions taken according to environment protection", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Safety, environmental, electrical and deck-round precautions during bunkering", "cross_family": false }, { "answer_id": "RA-MGMT-A-001", "score": 0.5651516914367676, "sibling_score": 0.5651516914367676, "answer_score": null, "sibling_qid": "CHE-2026-05-0606-Q006", "sibling_text": "occupational hazard", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "What is risk, what is hazard, and what is risk assessment?", "cross_family": false }, { "answer_id": "ISM-AUD-P03-006", "score": 0.564666748046875, "sibling_score": 0.564666748046875, "answer_score": null, "sibling_qid": "MUM-2026-03-0811-Q006", "sibling_text": "what do you understand by safety environment protection policy", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Company safety and environmental-protection objectives", "cross_family": false } ] }, { "qid": "KOC-2024-11-1433-Q001", "text": "3 pointer starter", "family": "Electrical - Motors & Starters", "subtopic": "DC Motor Three-Point Starter", "tid": "KOC-2024-11-1433", "tray": "new", "candidates": [ { "answer_id": "STR-DEC-A-001", "score": 0.6368474364280701, "sibling_score": 0.6368474364280701, "answer_score": null, "sibling_qid": "KOC-2026-02-1709-Q002", "sibling_text": "3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "STARTER-DEC-B-003", "score": 0.6363599896430969, "sibling_score": 0.6363599896430969, "answer_score": null, "sibling_qid": "KOC-2023-04-1255-Q006", "sibling_text": "dol starter 3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "DOL starter — use, current, range and limits", "cross_family": false }, { "answer_id": "SOFT-START-P01-001", "score": 0.5613624453544617, "sibling_score": 0.5613624453544617, "answer_score": null, "sibling_qid": "KOL-2017-07-2140-Q003", "sibling_text": "3 soft starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Soft Starter — Definition, Purpose and Working", "cross_family": false } ] }, { "qid": "KOC-2024-11-1433-Q003", "text": "DC generator paralling", "family": "Electrical - Generator & Alternator", "subtopic": "Synchronization", "tid": "KOC-2024-11-1433", "tray": "review", "candidates": [ { "answer_id": "SYNC-C-001", "score": 0.7528145909309387, "sibling_score": 0.7528145909309387, "answer_score": 0.4478289723396301, "sibling_qid": "KOC-2026-02-1704-Q003", "sibling_text": "dc generator paralleling", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Paralleling generators — procedure, conditions and practical checks", "cross_family": false }, { "answer_id": "SYNC-D-001", "score": 0.6447722315788269, "sibling_score": 0.6447722315788269, "answer_score": null, "sibling_qid": "KOC-2025-08-1565-Q005", "sibling_text": "generator parallel when not in phase", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Closing the breaker out of phase — wrong-synchronizing consequences", "cross_family": false }, { "answer_id": "LS-IMB-A-001", "score": 0.6427710652351379, "sibling_score": 0.6427710652351379, "answer_score": 0.41647135764360427, "sibling_qid": "KOC-2024-11-1440-Q008", "sibling_text": "2 generator running parallel one generator draws more current reasons internal working of dp transmitter", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Two paralleled generators sharing unequal load — cause and correction", "cross_family": false } ] }, { "qid": "KOC-2024-11-1436-Q005", "text": "Motor terminals box connection star and delta diagram,why six terminals reasons", "family": "Electrical - Motors & Starters", "subtopic": "Star-Delta Starter", "tid": "KOC-2024-11-1436", "tray": "review", "candidates": [ { "answer_id": "SDST-A-001", "score": 0.7772091031074524, "sibling_score": 0.7772091031074524, "answer_score": null, "sibling_qid": "KOC-2024-01-1317-Q008", "sibling_text": "draw explain star delta starter why there is 6 cables in the junction box of a motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false }, { "answer_id": "IMSP-004", "score": 0.7450715899467468, "sibling_score": 0.7450715899467468, "answer_score": 0.587639582157135, "sibling_qid": "MUM-2024-09-1462-Q010", "sibling_text": "star delta starter terminal box components", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Explain the star-delta starter, and what you find inside it when you open it — its components.", "cross_family": false }, { "answer_id": "CONT-317-003", "score": 0.7323960661888123, "sibling_score": 0.7323960661888123, "answer_score": 0.5383911848068237, "sibling_qid": "MUM-2026-01-1899-Q004", "sibling_text": "how many terminals are there in a motor how to connect them in start and delta", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Continuity to confirm terminal identity after overhaul or rewind", "cross_family": false } ] }, { "qid": "KOC-2024-11-1438-Q002", "text": "dewatering system electrical safites (cabel specification)", "family": "Cargo Ops - Bulk Carriers", "subtopic": "WIDAS / Smoke Detection", "tid": "KOC-2024-11-1438", "tray": "new", "candidates": [ { "answer_id": "CABLE-INS-E-002", "score": 0.6287090182304382, "sibling_score": 0.6287090182304382, "answer_score": 0.5331006526947021, "sibling_qid": "KOL-2018-05-2194-Q005", "sibling_text": "type of cable in pump room", "sibling_family": "", "via": "sibling", "answer_title": "Cable for hazardous areas, tanker pump rooms and deck", "cross_family": false }, { "answer_id": "CABLE-INS-E-005", "score": 0.6180437207221985, "sibling_score": 0.6180437207221985, "answer_score": 0.5015493243932724, "sibling_qid": "KOC-2024-09-1396-Q008", "sibling_text": "what safties in engine room cable expects properties", "sibling_family": "", "via": "sibling", "answer_title": "Cable properties, safety, standards and condition", "cross_family": false }, { "answer_id": "CABLE-INSUL-D-002", "score": 0.616775631904602, "sibling_score": 0.616775631904602, "answer_score": null, "sibling_qid": "KOL-2024-10-2736-Q003", "sibling_text": "flame retarded and armoured cable", "sibling_family": "", "via": "sibling", "answer_title": "Armouring, sheathing and flame-retardant / FRLS cable", "cross_family": false } ] }, { "qid": "KOC-2024-11-1439-Q007", "text": "Bridge EQUIPMENTS", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "KOC-2024-11-1439", "tray": "review", "candidates": [ { "answer_id": "VOLT-SYS-008", "score": 0.6651211380958557, "sibling_score": 0.6651211380958557, "answer_score": null, "sibling_qid": "KOL-2022-07-2582-Q004", "sibling_text": "equipments on bridge supply voltage", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Why standard shipboard voltages: 440, 230/220, 110 and 24", "cross_family": true }, { "answer_id": "LSA-CODE-BF044-002", "score": 0.5988446474075317, "sibling_score": 0.5988446474075317, "answer_score": null, "sibling_qid": "KOL-2022-03-0612-Q005", "sibling_text": "safety equipment on bridge according to lsa", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What life-saving equipment does the LSA Code / SOLAS Chapter III require on or near the bridge?", "cross_family": true }, { "answer_id": "ISPS-OV-004", "score": 0.5414285659790039, "sibling_score": 0.5414285659790039, "answer_score": null, "sibling_qid": "KOC-2022-02-1170-Q007", "sibling_text": "isps equipments", "sibling_family": "ISPS", "via": "sibling", "answer_title": "ISPS shipboard security equipment", "cross_family": true } ] }, { "qid": "KOC-2024-11-1442-Q002", "text": "Draw and explain Brushless alternator", "family": "Electrical - Generator & Alternator", "subtopic": "Brushless Alternator", "tid": "KOC-2024-11-1442", "tray": "review", "candidates": [ { "answer_id": "BRUSHALT-A-001", "score": 0.7670196294784546, "sibling_score": 0.7670196294784546, "answer_score": 0.5669944792985916, "sibling_qid": "MUM-2026-05-3167-Q010", "sibling_text": "brushless alternator explain", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01 · Working principle of the brushless alternator / brushless excitation systemHigh", "cross_family": false }, { "answer_id": "BL-ALT-C-001", "score": 0.7259029150009155, "sibling_score": 0.7259029150009155, "answer_score": null, "sibling_qid": "KOL-2021-03-2432-Q002", "sibling_text": "brushless alternator only tell electrical advantage", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Electrical advantages of brushless excitation over brushed / static", "cross_family": false }, { "answer_id": "BL-ALT-C-002", "score": 0.5590073078870773, "sibling_score": null, "answer_score": 0.5590073078870773, "sibling_qid": "", "sibling_text": "how to identify onboard that an alternator is brushless open the exciter non drive end cover no brushes no brush boxes or springs no slip rings no carbon dust brushless defining proof no slip rings on the main rotor a visible shaft mounted rotating rectifier diode wheel plus surge suppressor", "sibling_family": "", "via": "answer_title", "answer_title": "How to identify onboard that an alternator is brushless", "cross_family": false } ] }, { "qid": "KOC-2024-11-1875-Q002", "text": "Fresh water generator producing 16tons after departure from port. earlier producing 24t.. reasons", "family": "Heat Exchangers & Coolers", "subtopic": "Salinity Alarm", "tid": "KOC-2024-11-1875", "tray": "new", "candidates": [ { "answer_id": "VAC-COND-002", "score": 0.5748807787895203, "sibling_score": 0.5748807787895203, "answer_score": null, "sibling_qid": "KOL-2026-07-4255-Q006", "sibling_text": "fresh water generator not getting vaccum why any 6 reasons", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Low vacuum, suction loss and failure to build vacuum — the reasons", "cross_family": false }, { "answer_id": "FWG-RO-001", "score": 0.5716337561607361, "sibling_score": 0.5716337561607361, "answer_score": 0.4122068971395492, "sibling_qid": "MUM-2026-07-3709-Q006", "sibling_text": "fresh water generator not getting vacuum why any 6 reasons", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "How is vacuum created in the FWG, why does it run under vacuum, and what if the vacuum will not come?", "cross_family": false }, { "answer_id": "FWG-RO-003", "score": 0.5669355392456055, "sibling_score": 0.5669355392456055, "answer_score": 0.5060512721538544, "sibling_qid": "MUM-2026-02-2577-Q006", "sibling_text": "fresh water generator efficiency dropped reasons few more but don t remember external said to internal he s okay in both i am satisfied and internal said okay you re pass in both", "sibling_family": "Fresh Water & Domestic Systems", "via": "sibling", "answer_title": "The FWG is not producing enough water or its efficiency has dropped. Reasons, checks and action?", "cross_family": true } ] }, { "qid": "KOC-2024-11-1876-Q004", "text": "Ae cylinder head overhauling", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE Valve Seat", "tid": "KOC-2024-11-1876", "tray": "review", "candidates": [ { "answer_id": "XHEAD-303-007", "score": 0.6936253905296326, "sibling_score": 0.6936253905296326, "answer_score": null, "sibling_qid": "KOC-2026-02-1999-Q007", "sibling_text": "cylinder head overhaul", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Crosshead inspection, survey and overhaul, including in-place overhaul", "cross_family": true }, { "answer_id": "PIST-CSI-C-002", "score": 0.6799073815345764, "sibling_score": 0.6799073815345764, "answer_score": null, "sibling_qid": "CHE-2026-02-0484-Q006", "sibling_text": "during and after overhauling what checks u do in ae cylinder head", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Piston pressure / hydraulic leak testing after overhaul", "cross_family": false }, { "answer_id": "CCH-590-002", "score": 0.6694850921630859, "sibling_score": 0.6694850921630859, "answer_score": null, "sibling_qid": "CHE-2026-03-0486-Q010", "sibling_text": "cylinder head overhauling and checks", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "How do you pressure test a cylinder head, and how do you find and rectify a leak from it?", "cross_family": true } ] }, { "qid": "KOC-2024-11-1878-Q001", "text": "Cross head inspection with piston", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Crosshead Bearing", "tid": "KOC-2024-11-1878", "tray": "review", "candidates": [ { "answer_id": "XHD-BRG-C-001", "score": 0.8045477271080017, "sibling_score": 0.8045477271080017, "answer_score": null, "sibling_qid": "KOC-2024-01-1824-Q001", "sibling_text": "crosshead bearing inspection piston in place", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "A. Present the crosshead bottom shell for survey, piston in place", "cross_family": false }, { "answer_id": "XHD-BRG-C-002", "score": 0.7237663865089417, "sibling_score": 0.7237663865089417, "answer_score": null, "sibling_qid": "KOC-2023-12-1822-Q004", "sibling_text": "crosshead overhaul piston mounted", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "B. Crosshead bearing overhaul and removal: exact steps, tackle, withdrawing the pin", "cross_family": false }, { "answer_id": "XHD-BRG-B-001", "score": 0.7207327485084534, "sibling_score": 0.7207327485084534, "answer_score": null, "sibling_qid": "KOL-2019-09-3272-Q003", "sibling_text": "crosshead how will u prepare for survey tell the position of piston also", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Preparing the crosshead bottom-end bearing and presenting it to the surveyor", "cross_family": false } ] }, { "qid": "KOC-2024-11-1878-Q005", "text": "Oil in boiler what will your action 6", "family": "Boilers - Feed Water & Water Treatment", "subtopic": "Oil Contamination in Boiler Water", "tid": "KOC-2024-11-1878", "tray": "review", "candidates": [ { "answer_id": "SBD-001", "score": 0.7474562525749207, "sibling_score": 0.7474562525749207, "answer_score": 0.5686150670051574, "sibling_qid": "CHE-2026-09-3903-Q004", "sibling_text": "oil in boiler what to do", "sibling_family": "Boilers - Feed Water & Water Treatment", "via": "sibling", "answer_title": "You find oil in the boiler gauge glass — causes, how you identify the source, and your actions as 2/E (including if manoeuvring). 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Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": false }, { "answer_id": "SOPEP-003", "score": 0.5391817688941956, "sibling_score": 0.5391817688941956, "answer_score": null, "sibling_qid": "KOL-2022-12-0709-Q004", "sibling_text": "during bunkering oil spilled outside ship action as 2 e", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Oil Spill and Bunkering-Spill Response under the SOPEP", "cross_family": false }, { "answer_id": "BUNK-PLAN-004", "score": 0.5225029587745667, "sibling_score": 0.5225029587745667, "answer_score": null, "sibling_qid": "KOL-2021-08-0539-Q002", "sibling_text": "bunkering procedure bunker calculation", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Bunker plan: tank selection, quantity / overflow control, calculation and procedure", "cross_family": true } ] }, { "qid": "KOC-2025-01-0503-Q006", "text": "■OrB missed Bunker entry", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "KOC-2025-01-0503", "tray": "review", "candidates": [ { "answer_id": "ORB-IOPP-OWS-005", "score": 0.7822803258895874, "sibling_score": 0.7822803258895874, "answer_score": 0.38218995183706284, "sibling_qid": "KOC-2026-05-0044-Q003", "sibling_text": "bunker miss entry procedure for orb", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "A missed bunker entry — how to add it, and how that differs from correcting a wrong entry", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-004", "score": 0.7516235709190369, "sibling_score": 0.7516235709190369, "answer_score": null, "sibling_qid": "MUM-2026-08-3831-Q008", "sibling_text": "bunker entry in orb", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Weekly ORB entries — the mandatory sludge retention record, the bunker entry, and what is voluntary", "cross_family": false }, { "answer_id": "OWS-ORB-006", "score": 0.6446450352668762, "sibling_score": 0.6446450352668762, "answer_score": null, "sibling_qid": "MUM-2026-01-0682-Q005", "sibling_text": "lo bunkered in drums orb entry", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "6. 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Stern tube — arrangement, function, materials and types", "cross_family": true } ] }, { "qid": "KOC-2025-01-0512-Q007", "text": "Where is onboard death recorded", "family": "Shipboard Records", "subtopic": "Official Log Book", "tid": "KOC-2025-01-0512", "tray": "new", "candidates": [ { "answer_id": "RCA-INC-001", "score": 0.4828575849533081, "sibling_score": 0.4828575849533081, "answer_score": 0.3375566855072975, "sibling_qid": "KOL-2023-12-0790-Q001", "sibling_text": "reporting procedure for accident onboard according to ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "RCA-INC-01 — Reporting procedure for an accident or incident on board under ISM / SMS", "cross_family": true }, { "answer_id": "AIRP-188-005", "score": 0.4669400453567505, "sibling_score": 0.4669400453567505, "answer_score": null, "sibling_qid": "KOC-2025-11-0721-Q008", "sibling_text": "ods what s that where you can see onboard what s in ods record book", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "ODS Record Book and the IAPP equipment list — what and where?", "cross_family": true }, { "answer_id": "BOT-003", "score": 0.46047624945640564, "sibling_score": 0.46047624945640564, "answer_score": null, "sibling_qid": "CHE-2026-03-0358-Q003", "sibling_text": "dead ship recovery procedure", "sibling_family": "Electrical - 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Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is the latest amendment to MARPOL Annex VI affecting the IMO DCS?", "cross_family": true } ] }, { "qid": "KOC-2025-01-0520-Q006", "text": "ism elements", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOC-2025-01-0520", "tray": "review", "candidates": [ { "answer_id": "ISM-ELEM-003", "score": 0.72866290807724, "sibling_score": 0.72866290807724, "answer_score": 0.42241173088550565, "sibling_qid": "KOC-2026-02-0817-Q006", "sibling_text": "ism elements", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": false }, { "answer_id": "ISM-ELEM-002", "score": 0.6282928586006165, "sibling_score": 0.6282928586006165, "answer_score": null, "sibling_qid": "KOC-2026-02-0832-Q008", "sibling_text": "ism code explain all elements", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the ISM Code?", "cross_family": false }, { "answer_id": "ISPS-OV-001", "score": 0.6156479716300964, "sibling_score": 0.6156479716300964, "answer_score": null, "sibling_qid": "KOL-2024-11-0890-Q006", "sibling_text": "isps elements", "sibling_family": "ISPS", "via": "sibling", "answer_title": "ISPS Code: what it is, structure and key elements", "cross_family": true } ] }, { "qid": "KOC-2025-01-0520-Q007", "text": "sms contents", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOC-2025-01-0520", "tray": "review", "candidates": [ { "answer_id": "SMSFR-002", "score": 0.8256191611289978, "sibling_score": 0.8256191611289978, "answer_score": null, "sibling_qid": "KOC-2022-03-0063-Q002", "sibling_text": "contents of sms", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the Safety Management System — the SMS manual, its contents, objectives, why it is needed onboard, and the company SMS policy?", "cross_family": false }, { "answer_id": "ISM-AUD-P02-004", "score": 0.8249673247337341, "sibling_score": 0.8249673247337341, "answer_score": 0.283954456448555, "sibling_qid": "MUM-2022-08-0033-Q001", "sibling_text": "contents of sms", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "SMS contents, manuals, documents and drill records onboard", "cross_family": false }, { "answer_id": "ISM-SMCDOC-A-001", "score": 0.6639782786369324, "sibling_score": 0.6639782786369324, "answer_score": null, "sibling_qid": "MUM-2026-05-3182-Q002", "sibling_text": "what is sms", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM certificates: the DOC and SMC family", "cross_family": false } ] }, { "qid": "KOC-2025-01-0522-Q010", "text": "What is IMO number, location", "family": "IMO Structure & Conventions", "subtopic": "IMO / Committees / Codes", "tid": "KOC-2025-01-0522", "tray": "review", "candidates": [ { "answer_id": "SOLAS-OVW-011", "score": 0.6979157328605652, "sibling_score": 0.6979157328605652, "answer_score": 0.42559915184974667, "sibling_qid": "KOC-2026-08-2112-Q007", "sibling_text": "imo number location and dimension", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS Chapter XI-1 — special measures (safety): IMO number marking", "cross_family": false }, { "answer_id": "A6-NSEC-002", "score": 0.6048761010169983, "sibling_score": 0.6048761010169983, "answer_score": null, "sibling_qid": "MUM-2025-03-2273-Q024", "sibling_text": "imo number for nox", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "NOx Technical Code vs NOx Technical File", "cross_family": true }, { "answer_id": "IMO-5PIL-001", "score": 0.5994333028793335, "sibling_score": 0.5994333028793335, "answer_score": 0.39747749418020245, "sibling_qid": "MUM-2025-05-0252-Q004", "sibling_text": "structure of imo", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Structure of IMO — the main organs", "cross_family": false } ] }, { "qid": "KOC-2025-01-0522-Q011", "text": "What is its dimension and how is it permanently marked on the ship?", "family": "IMO Structure & Conventions", "subtopic": "IMO / Committees / Codes", "tid": "KOC-2025-01-0522", "tray": "new", "candidates": [ { "answer_id": "SOLAS-OVW-011", "score": 0.5782710313796997, "sibling_score": 0.5782710313796997, "answer_score": null, "sibling_qid": "KOC-2026-08-2112-Q007", "sibling_text": "imo number location and dimension", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS Chapter XI-1 — special measures (safety): IMO number marking", "cross_family": false }, { "answer_id": "SOLAS12-BC-A-004", "score": 0.5610867738723755, "sibling_score": 0.5610867738723755, "answer_score": 0.4851042628288269, "sibling_qid": "KOC-2021-09-2025-Q003", "sibling_text": "triangle marking only in some bulk carrier which type of ship have that marking on both side ans bulk carriers of 150m in freeboard length lf and upward of single side skin construction carrying cargoes having a density of 1 78t m3 and above if not meeting the requirements for withstanding flooding of any one cargo hold as specified in regulation", "sibling_family": "", "via": "sibling", "answer_title": "The solid triangle mark and high-density-cargo restriction", "cross_family": false }, { "answer_id": "LL-CONV-P06-001", "score": 0.5564411282539368, "sibling_score": 0.5564411282539368, "answer_score": null, "sibling_qid": "KOL-2025-07-0995-Q005", "sibling_text": "triangle mark on side shell of bulk carrier", "sibling_family": "", "via": "sibling", "answer_title": "LLC-P06-01 - Ship categories and freeboard differences: Type A, Type B and practical ship cases", "cross_family": false } ] }, { "qid": "KOC-2025-01-0524-Q004", "text": "Tankscope vs explosimeter", "family": "Gas Detection & Instruments", "subtopic": "Explosimeter / Gas Detector", "tid": "KOC-2025-01-0524", "tray": "review", "candidates": [ { "answer_id": "GAS-DET-006", "score": 0.7985488772392273, "sibling_score": 0.7985488772392273, "answer_score": 0.6067782938480377, "sibling_qid": "KOC-2026-09-2199-Q002", "sibling_text": "explosimeter and tank scope difference", "sibling_family": "Gas Detection & Instruments", "via": "sibling", "answer_title": "Tankscope vs explosimeter: construction, working, where to use, gases", "cross_family": false }, { "answer_id": "GAS-DET-008", "score": 0.6790024638175964, "sibling_score": 0.6790024638175964, "answer_score": 0.4784286797046661, "sibling_qid": "KOC-2026-09-2176-Q003", "sibling_text": "explosimeter working", "sibling_family": "Gas Detection & Instruments", "via": "sibling", "answer_title": "Explosimeter: construction, working, calibration, gases detected", "cross_family": false }, { "answer_id": "GAS-DET-007", "score": 0.5309795051813125, "sibling_score": null, "answer_score": 0.5309795051813125, "sibling_qid": "", "sibling_text": "checking hydrocarbon content in a tank or space choose by atmosphere purpose oxygen present flammable check explosimeter lel inert high concentration tankscope vol calibrate zero and bump test before use fit the correct filter and a sound sample line", "sibling_family": "", "via": "answer_title", "answer_title": "Checking hydrocarbon content in a tank or space", "cross_family": false } ] }, { "qid": "KOC-2025-01-0524-Q007", "text": "MOB marker regulation", "family": "SOLAS - LSA & Lifeboats", "subtopic": "MOB Marker", "tid": "KOC-2025-01-0524", "tray": "review", "candidates": [ { "answer_id": "MOB-MKR-005", "score": 0.7448068261146545, "sibling_score": 0.7448068261146545, "answer_score": 0.3953273922204971, "sibling_qid": "KOC-2025-11-0704-Q002", "sibling_text": "mob marker solas regulation", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What is the SOLAS requirement and regulation for the MOB marker?", "cross_family": false }, { "answer_id": "MOB-MKR-001", "score": 0.7002791166305542, "sibling_score": 0.7002791166305542, "answer_score": 0.3471483588218689, "sibling_qid": "MUM-2026-06-3530-Q005", "sibling_text": "mob marker", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What is the MOB marker, what is it for, and what does it consist of? Give the full details.", "cross_family": false }, { "answer_id": "MOB-MKR-002", "score": 0.38050773143768307, "sibling_score": null, "answer_score": 0.38050773143768307, "sibling_qid": "", "sibling_text": "where is the mob marker stowed what is its exact location and what is the plate it rests on both bridge wings one each side equal distribution both sides is solas iii 7 1 3 quick release from the navigation bridge is the statutory requirement not the wing as such", "sibling_family": "", "via": "answer_title", "answer_title": "Where is the MOB marker stowed, what is its exact location, and what is the plate it rests on?", "cross_family": false } ] }, { "qid": "KOC-2025-01-0525-Q002", "text": "Cross section diagram of rudder", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOC-2025-01-0525", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.7983270883560181, "sibling_score": 0.7983270883560181, "answer_score": null, "sibling_qid": "KOC-2026-03-0879-Q004", "sibling_text": "rudder cross section", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "DUS-P5-03", "score": 0.6607332229614258, "sibling_score": 0.6607332229614258, "answer_score": 0.527219632267952, "sibling_qid": "KOC-2024-12-2058-Q002", "sibling_text": "draw aft portion of the ship without propeller and rudder in it show the rudder axis which pass through the structure", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Stern frame construction, cross-section and rudder-axis sketch", "cross_family": true }, { "answer_id": "HULL-PAINT-002", "score": 0.6531677842140198, "sibling_score": 0.6531677842140198, "answer_score": null, "sibling_qid": "CHE-2026-02-0110-Q012", "sibling_text": "rudder internal painting", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Types of hull coating, the paint scheme by section, and why each is used", "cross_family": false } ] }, { "qid": "KOC-2025-01-0525-Q007", "text": "Rudder after hot work what all things u will do?", "family": "Workshop & Welding", "subtopic": "Hot Work", "tid": "KOC-2025-01-0525", "tray": "new", "candidates": [ { "answer_id": "COT-P02-14", "score": 0.43494993448257446, "sibling_score": 0.43494993448257446, "answer_score": null, "sibling_qid": "KOC-2023-03-0176-Q005", "sibling_text": "in tanker after finishing cargo need to do hot work what s the procedure", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Explain the complete safe preparation and control process for carrying out hot work inside a tanker cargo tank after discharge.", "cross_family": true }, { "answer_id": "WBS-C-003", "score": 0.4332420229911804, "sibling_score": 0.4332420229911804, "answer_score": null, "sibling_qid": "CHE-2026-05-0558-Q013", "sibling_text": "in dry dock how will you prepare for hot work what all fire safety you will take", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Shipboard hot work — the permit, the designated area, and work near fuel tanks", "cross_family": false }, { "answer_id": "BLR-OPS-016", "score": 0.4024607539176941, "sibling_score": 0.4024607539176941, "answer_score": null, "sibling_qid": "KOL-2023-11-3657-Q005", "sibling_text": "in running boiler u found what will be ur actions", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "You find a defect on a running boiler: what are your actions?", "cross_family": true } ] }, { "qid": "KOC-2025-01-0525-Q009", "text": "SMS reviews and what all things will do", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOC-2025-01-0525", "tray": "new", "candidates": [ { "answer_id": "SMSFR-002", "score": 0.5697413086891174, "sibling_score": 0.5697413086891174, "answer_score": null, "sibling_qid": "KOL-2025-11-1118-Q005", "sibling_text": "what is there in sms", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the Safety Management System — the SMS manual, its contents, objectives, why it is needed onboard, and the company SMS policy?", "cross_family": false }, { "answer_id": "ISM-SMCDOC-A-001", "score": 0.5398694276809692, "sibling_score": 0.5398694276809692, "answer_score": null, "sibling_qid": "MUM-2026-05-3182-Q002", "sibling_text": "what is sms", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM certificates: the DOC and SMC family", "cross_family": false }, { "answer_id": "ISM-AUD-P02-004", "score": 0.535944402217865, "sibling_score": 0.535944402217865, "answer_score": null, "sibling_qid": "MUM-2022-08-0033-Q001", "sibling_text": "contents of sms", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "SMS contents, manuals, documents and drill records onboard", "cross_family": false } ] }, { "qid": "KOC-2025-01-0526-Q006", "text": "■MLC titles? Explain 1st", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOC-2025-01-0526", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.6702367663383484, "sibling_score": 0.6702367663383484, "answer_score": 0.26598709523677827, "sibling_qid": "KOC-2026-05-2135-Q011", "sibling_text": "mlc titles explain title 1 explain dmlc part 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "MLC-WRH-B-006", "score": 0.4691837430000305, "sibling_score": 0.4691837430000305, "answer_score": null, "sibling_qid": "MUM-2026-07-3680-Q005", "sibling_text": "what is mlc certificate under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false }, { "answer_id": "MLC-WRH-B-007", "score": 0.39520806074142456, "sibling_score": 0.39520806074142456, "answer_score": null, "sibling_qid": "MUM-2024-09-2771-Q003", "sibling_text": "mlc and detainable deficiencies", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false } ] }, { "qid": "KOC-2025-01-0528-Q004", "text": "ISM elements part A and part B", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOC-2025-01-0528", "tray": "new", "candidates": [ { "answer_id": "ISM-ELEM-003", "score": 0.5879330039024353, "sibling_score": 0.5879330039024353, "answer_score": 0.3845490425825119, "sibling_qid": "KOC-2026-02-0818-Q006", "sibling_text": "ism elements", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": false }, { "answer_id": "ISM-ELEM-002", "score": 0.5680447220802307, "sibling_score": 0.5680447220802307, "answer_score": null, "sibling_qid": "KOC-2026-05-2138-Q008", "sibling_text": "ism codes describe all the codes in part a and part b", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the ISM Code?", "cross_family": false }, { "answer_id": "ISM-2E-C-001", "score": 0.5450751781463623, "sibling_score": 0.5450751781463623, "answer_score": null, "sibling_qid": "KOC-2025-06-0616-Q004", "sibling_text": "ism documents parts as 2e", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM audit / survey preparation as Second Engineer — beyond the paperwork", "cross_family": false } ] }, { "qid": "KOC-2025-01-0528-Q005", "text": "CSR, what all it contains?", "family": "Surveys - Statutory", "subtopic": "CSR / Continuous Synopsis Record", "tid": "KOC-2025-01-0528", "tray": "new", "candidates": [ { "answer_id": "CERT-LIST-P01-001", "score": 0.5727586150169373, "sibling_score": 0.5727586150169373, "answer_score": null, "sibling_qid": "KOL-2026-01-1159-Q006", "sibling_text": "csr and its forms", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "List the statutory certificates carried onboard a ship.", "cross_family": false }, { "answer_id": "CSR-585-001", "score": 0.5679945945739746, "sibling_score": 0.5679945945739746, "answer_score": 0.2939477935433388, "sibling_qid": "KOC-2025-11-0718-Q006", "sibling_text": "what is csr", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the Continuous Synopsis Record (CSR)? Explain its purpose and requirements.", "cross_family": false }, { "answer_id": "COC-003", "score": 0.42689114809036255, "sibling_score": 0.42689114809036255, "answer_score": null, "sibling_qid": "KOL-2021-03-0479-Q004", "sibling_text": "cas full details", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the Condition Assessment Scheme (CAS), and how does it relate to a Condition of Class?", "cross_family": false } ] }, { "qid": "KOC-2025-01-0529-Q001", "text": "Procedure to report ship side plate change due to collision to company", "family": "Surveys - Statutory", "subtopic": "Defects on Board / Class Action", "tid": "KOC-2025-01-0529", "tray": "new", "candidates": [ { "answer_id": "HULL-DD-006", "score": 0.6180140972137451, "sibling_score": 0.6180140972137451, "answer_score": 0.5331149905920028, "sibling_qid": "KOL-2019-09-0323-Q002", "sibling_text": "your ship had a collision how will u report the same to office wants to hear abt the designation of shell plating", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "7. Hull damage / collision / dent reporting and shell-plating designation", "cross_family": true }, { "answer_id": "HULL-DD-004", "score": 0.5808101296424866, "sibling_score": 0.5808101296424866, "answer_score": 0.41257210820913315, "sibling_qid": "MUM-2023-02-2164-Q004", "sibling_text": "hull plate dent as senond engg how to change plate when surveyor tlod to change", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "4. Hull plate renewal / insert plate: thickness, ordering and fit", "cross_family": true }, { "answer_id": "ISM-AUD-P03-003", "score": 0.5508077144622803, "sibling_score": 0.5508077144622803, "answer_score": null, "sibling_qid": "MUM-2026-03-0853-Q005", "sibling_text": "hull damage has taken place how will you report to your company following sms", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "Non-conformity, major non-conformity and incident reporting under SMS", "cross_family": true } ] }, { "qid": "KOC-2025-01-0530-Q003", "text": "EORB", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "KOC-2025-01-0530", "tray": "new", "candidates": [ { "answer_id": "OWS-ORB-006", "score": 0.5116018652915955, "sibling_score": 0.5116018652915955, "answer_score": null, "sibling_qid": "MUM-2026-03-0808-Q002", "sibling_text": "orb entry for lo", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "6. Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-002", "score": 0.4657934606075287, "sibling_score": 0.4657934606075287, "answer_score": null, "sibling_qid": "CHE-2026-05-0543-Q003", "sibling_text": "orb in details", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "The Oil Record Book Part I — purpose, the letter codes, and how entries are made", "cross_family": false }, { "answer_id": "EPIRB-001", "score": 0.4650322198867798, "sibling_score": 0.4650322198867798, "answer_score": null, "sibling_qid": "KOC-2025-03-1506-Q010", "sibling_text": "epirb working", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What is an EPIRB? Explain its construction, working, operation and battery specification.", "cross_family": true } ] }, { "qid": "KOC-2025-01-0531-Q002", "text": "Type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2025-01-0531", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8360850214958191, "sibling_score": 0.8360850214958191, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8013966083526611, "sibling_score": 0.8013966083526611, "answer_score": 0.546773687005043, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.7998400926589966, "sibling_score": 0.7998400926589966, "answer_score": 0.5213734686374664, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "KOC-2025-01-0531-Q007", "text": "Type of steering gear motor", "family": "Electrical - Motors & Starters", "subtopic": "STEERING GEAR MOTOR-ELECTRICAL", "tid": "KOC-2025-01-0531", "tray": "review", "candidates": [ { "answer_id": "TG-MOTOR-001", "score": 0.8594031929969788, "sibling_score": 0.8594031929969788, "answer_score": null, "sibling_qid": "MUM-2026-05-3287-Q006S2", "sibling_text": "steering gear motor type", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What type of motor is used for the turning gear, and what type of rotor does it have?", "cross_family": false }, { "answer_id": "SGM-ELEC-002", "score": 0.8594031929969788, "sibling_score": 0.8594031929969788, "answer_score": 0.5724746972322464, "sibling_qid": "MUM-2026-01-1906-Q006S2", "sibling_text": "steering gear motor type", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What type of motor is the steering gear motor, how does it differ from other engine-room motors, and how do you order one?", "cross_family": false }, { "answer_id": "STEER-055-A-002", "score": 0.8094031810760498, "sibling_score": 0.8094031810760498, "answer_score": 0.5748281896114349, "sibling_qid": "MUM-2026-05-3285-Q005S2", "sibling_text": "steering gear motor type", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Steering gear motor and power unit", "cross_family": true } ] }, { "qid": "KOC-2025-01-1022-Q003", "text": "Draw cylinder relief valve of MAIN ENGINE X Working X Pressure adjustment", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Cover / Head", "tid": "KOC-2025-01-1022", "tray": "review", "candidates": [ { "answer_id": "SAV-001", "score": 0.7336096167564392, "sibling_score": 0.7336096167564392, "answer_score": null, "sibling_qid": "MUM-2026-03-2935-Q005", "sibling_text": "cylinder head safety valve of main engine diagram", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Construction and working of the main automatic starting air valve", "cross_family": false }, { "answer_id": "FFF-A-003", "score": 0.6883588433265686, "sibling_score": 0.6883588433265686, "answer_score": null, "sibling_qid": "CHE-2026-04-0170-Q001S8", "sibling_text": "cylinder relief valve construction", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fire main, hydrants, isolating and deck valves, and fire-line fittings", "cross_family": true }, { "answer_id": "CCE-322-004", "score": 0.6762387752532959, "sibling_score": 0.6762387752532959, "answer_score": null, "sibling_qid": "KOC-2026-05-2129-Q013", "sibling_text": "told me that no cylinder relief valve on me b engines then safety for high pressures in cylinder", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Preventive measures and safety devices", "cross_family": false } ] }, { "qid": "KOC-2025-01-1022-Q004", "text": "Explain the construction of Full bore safety Valve", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2025-01-1022", "tray": "review", "candidates": [ { "answer_id": "MR-DS-PV-B-006", "score": 0.787960946559906, "sibling_score": 0.787960946559906, "answer_score": null, "sibling_qid": "KOC-2026-09-2180-Q009", "sibling_text": "full bore safety valve construction", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "6. 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Where are low-hydrogen electrodes used onboard?", "cross_family": false }, { "answer_id": "WELD-PATM-002", "score": 0.7942965626716614, "sibling_score": 0.7942965626716614, "answer_score": 0.4732840597629547, "sibling_qid": "MUM-2026-06-3494-Q010", "sibling_text": "ci welding electrode details", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Manual metal-arc – electrode and current selection", "cross_family": false }, { "answer_id": "WELD-B-001", "score": 0.6540798544883728, "sibling_score": 0.6540798544883728, "answer_score": null, "sibling_qid": "MUM-2026-06-3641-Q001", "sibling_text": "cast iron welding which electrode", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding & crack-repair of aluminium and cast iron, including metal stitching", "cross_family": false } ] }, { "qid": "KOC-2025-01-1897-Q008", "text": "Wildon pump drawing. Internal :", "family": "Pumps - Centrifugal & PD", "subtopic": "Positive Displacement Pump", "tid": "KOC-2025-01-1897", "tray": "review", "candidates": [ { "answer_id": "HSAP-583-A-001", "score": 0.6534605026245117, "sibling_score": 0.6534605026245117, "answer_score": null, "sibling_qid": "KOC-2023-12-0986-Q008", "sibling_text": "draw hele shaw pump", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Hele-Shaw pump: construction and working — draw and explain", "cross_family": false }, { "answer_id": "PPS-622-003", "score": 0.5796485543251038, "sibling_score": 0.5796485543251038, "answer_score": null, "sibling_qid": "KOC-2026-04-2021-Q005", "sibling_text": "vaccum pump drawing", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Explain the working of the water-ring / liquid-ring primer and its diagram. 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Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": false } ] }, { "qid": "KOC-2025-02-0535-Q009", "text": "Then he suddenly moved to , Form E and Form B and its contents", "family": "Surveys - Statutory", "subtopic": "Certificates List", "tid": "KOC-2025-02-0535", "tray": "new", "candidates": [ { "answer_id": "PSC-004", "score": 0.5159763693809509, "sibling_score": 0.5159763693809509, "answer_score": 0.2528629034757614, "sibling_qid": "KOC-2024-09-0409-Q003", "sibling_text": "form b", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "4. 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Function and working principle of the tanker deck seal", "cross_family": true }, { "answer_id": "MR-DS-PV-B-003", "score": 0.6257621049880981, "sibling_score": 0.6257621049880981, "answer_score": null, "sibling_qid": "KOC-2024-02-0298-Q002", "sibling_text": "which type of ship explain ig safeties on deck", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "3. Alarms, trips, valves, and abnormal conditions of the deck seal", "cross_family": true }, { "answer_id": "TNK-SAFE-BF26-003", "score": 0.6159214377403259, "sibling_score": 0.6159214377403259, "answer_score": null, "sibling_qid": "MUM-2025-08-0423-Q003", "sibling_text": "safety on deck of tanker", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What safeties, including electrical safeties and Ex ratings, are provided on the deck of a tanker?", "cross_family": true } ] }, { "qid": "KOC-2025-02-0542-Q014", "text": "Which ship sailed", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2025-02-0542", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.7985743284225464, "sibling_score": 0.7985743284225464, "answer_score": null, "sibling_qid": "MUM-2026-04-1320-Q002", "sibling_text": "ship sailed on", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7224596738815308, "sibling_score": 0.7224596738815308, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "INCL-EXP-B-002", "score": 0.40608390569686886, "sibling_score": null, "answer_score": 0.40608390569686886, "sibling_qid": "", "sibling_text": "b2 when and for which ships the experiment is carried out completion baseline every passenger ship regardless of size every cargo ship of length l 24 m and upwards the completion result determines lightship displacement and the longitudinal transverse and vertical position of the centre of gravity", "sibling_family": "", "via": "answer_title", "answer_title": "B2. When and for which ships the experiment is carried out", "cross_family": false } ] }, { "qid": "KOC-2025-02-0543-Q007", "text": "oil changed from air compressor, where entry is made and how", "family": "Air Compressor", "subtopic": "Planned Maintenance / PMS", "tid": "KOC-2025-02-0543", "tray": "new", "candidates": [ { "answer_id": "REEF-COMP-004", "score": 0.5938441753387451, "sibling_score": 0.5938441753387451, "answer_score": 0.5436456441879273, "sibling_qid": "MUM-2026-07-3736-Q001", "sibling_text": "compressor oil filling method", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Charging, replenishing and draining compressor lube oil — including with no charging pump", "cross_family": true }, { "answer_id": "MAC-598-001", "score": 0.575984537601471, "sibling_score": 0.575984537601471, "answer_score": null, "sibling_qid": "MUM-2026-02-1257-Q005", "sibling_text": "air compressor suction and delivery valve ovarhaul procedure", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "The main air compressor valve — arrangement, parts, and why the construction is so complex", "cross_family": false }, { "answer_id": "REEF-COMP-008", "score": 0.5674139261245728, "sibling_score": 0.5674139261245728, "answer_score": null, "sibling_qid": "KOL-2020-02-3327-Q004", "sibling_text": "in refer compressors evaporator oil found how to remove onboard", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Valves, clearances, oil carry-over, refrigerant-in-oil, frosting, tandem valves, cooling — fault checks", "cross_family": true } ] }, { "qid": "KOC-2025-02-0543-Q008", "text": "official log book", "family": "Shipboard Records", "subtopic": "Official Log Book", "tid": "KOC-2025-02-0543", "tray": "new", "candidates": [ { "answer_id": "AIRP-188-005", "score": 0.5936315059661865, "sibling_score": 0.5936315059661865, "answer_score": null, "sibling_qid": "KOC-2026-02-0840-Q007", "sibling_text": "ods log what all entries", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "ODS Record Book and the IAPP equipment list — what and where?", "cross_family": true }, { "answer_id": "ODC-014", "score": 0.5693485736846924, "sibling_score": 0.5693485736846924, "answer_score": 0.36965409517288206, "sibling_qid": "KOL-2021-07-0532-Q003", "sibling_text": "odmcs log", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "ODMCS — what it records, the log, and calibration", "cross_family": true }, { "answer_id": "ORB-IOPP-OWS-002", "score": 0.5292294025421143, "sibling_score": 0.5292294025421143, "answer_score": 0.41613996475934983, "sibling_qid": "MUM-2026-06-3584-Q008", "sibling_text": "oil record book entries", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "The Oil Record Book Part I — purpose, the letter codes, and how entries are made", "cross_family": true } ] }, { "qid": "KOC-2025-02-0544-Q008", "text": "orb code C, 11.1,11.2,11.3", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "KOC-2025-02-0544", "tray": "new", "candidates": [ { "answer_id": "OWS-ORB-006", "score": 0.5475186109542847, "sibling_score": 0.5475186109542847, "answer_score": null, "sibling_qid": "CHE-2026-05-0634-Q009", "sibling_text": "orb all codes", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "6. Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-004", "score": 0.45639801025390625, "sibling_score": 0.45639801025390625, "answer_score": null, "sibling_qid": "KOC-2026-04-0906-Q013", "sibling_text": "orb weekly entry code and number", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Weekly ORB entries — the mandatory sludge retention record, the bunker entry, and what is voluntary", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-002", "score": 0.45452529191970825, "sibling_score": 0.45452529191970825, "answer_score": null, "sibling_qid": "CHE-2026-05-0543-Q003", "sibling_text": "orb in details", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "The Oil Record Book Part I — purpose, the letter codes, and how entries are made", "cross_family": false } ] }, { "qid": "KOC-2025-02-0544-Q009", "text": "The 12.1, 12.2 12.3,12.4", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "KOC-2025-02-0544", "tray": "review", "candidates": [ { "answer_id": "SOLAS12-BC-D-002", "score": 0.8178619146347046, "sibling_score": 0.8178619146347046, "answer_score": null, "sibling_qid": "KOC-2023-07-0202-Q007", "sibling_text": "12 1 12 2 12 3 12 4", "sibling_family": "", "via": "sibling", "answer_title": "Regulation 4 — damage stability requirements (and naming all 14 regulations)", "cross_family": false }, { "answer_id": "SOLAS12-BC-B-002", "score": 0.49044016003608704, "sibling_score": 0.49044016003608704, "answer_score": null, "sibling_qid": "KOC-2025-03-0561-Q004", "sibling_text": "chatre 12 solas content", "sibling_family": "", "via": "sibling", "answer_title": "SOLAS Chapter XII — the 14 regulations (list)", "cross_family": false }, { "answer_id": "A6-NSEC-005", "score": 0.4808652102947235, "sibling_score": 0.4808652102947235, "answer_score": null, "sibling_qid": "MUM-2025-09-1653-Q006", "sibling_text": "seemp 1 2 3", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP — Part I, II & III", "cross_family": true } ] }, { "qid": "KOC-2025-02-0544-Q012", "text": "IMO no where all on ship, how and what code", "family": "IMO Structure & Conventions", "subtopic": "IMO / Committees / Codes", "tid": "KOC-2025-02-0544", "tray": "new", "candidates": [ { "answer_id": "SOLAS-OVW-011", "score": 0.6070801019668579, "sibling_score": 0.6070801019668579, "answer_score": null, "sibling_qid": "MUM-2026-09-3929-Q002", "sibling_text": "what is imo no of ship its location dimension of working", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS Chapter XI-1 — special measures (safety): IMO number marking", "cross_family": false }, { "answer_id": "IMDG-004", "score": 0.5627902746200562, "sibling_score": 0.5627902746200562, "answer_score": 0.4094684854149818, "sibling_qid": "CHE-2025-10-0070-Q017", "sibling_text": "who you know imdg cargo taken by you as well implemented in ship", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "How do you identify IMDG cargo on board — how you know it is coming, and how you identify it with no documents", "cross_family": true }, { "answer_id": "SOLAS-CH-016", "score": 0.5461151003837585, "sibling_score": 0.5461151003837585, "answer_score": null, "sibling_qid": "KOC-2024-12-2058-Q008", "sibling_text": "which ship u sailed igc code comes under which solas chapter", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Codes and certificates under SOLAS", "cross_family": false } ] }, { "qid": "KOC-2025-02-0545-Q003", "text": "■SART", "family": "SOLAS - LSA & Lifeboats", "subtopic": "EPIRB / SART", "tid": "KOC-2025-02-0545", "tray": "review", "candidates": [ { "answer_id": "EPIRB-SART-002", "score": 0.727621853351593, "sibling_score": 0.727621853351593, "answer_score": 0.26712528616189957, "sibling_qid": "CHE-2026-03-0131-Q006", "sibling_text": "sart", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What is an AIS-SART and how does it differ from a radar SART?", "cross_family": false }, { "answer_id": "STR-DEC-A-001", "score": 0.5108472108840942, "sibling_score": 0.5108472108840942, "answer_score": null, "sibling_qid": "MUM-2022-09-1353-Q002", "sibling_text": "sarter safties", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": true }, { "answer_id": "EPIRB-SART-001", "score": 0.4466969966888428, "sibling_score": 0.4466969966888428, "answer_score": 0.2575136512517929, "sibling_qid": "KOL-2019-04-0278-Q005", "sibling_text": "epirb n sart function construction use and operation of working", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What is the difference between EPIRB and SART? Give the function, construction, use and operation of each.", "cross_family": false } ] }, { "qid": "KOC-2025-02-0545-Q006", "text": "■SAFCON SURVEY", "family": "Surveys - Statutory", "subtopic": "Safety Construction / Cargo Safety Cert", "tid": "KOC-2025-02-0545", "tray": "new", "candidates": [ { "answer_id": "SVY-SCOPE-002", "score": 0.5715034008026123, "sibling_score": 0.5715034008026123, "answer_score": null, "sibling_qid": "MUM-2025-05-2800-Q005", "sibling_text": "safcon survey as 2nd engg", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is checked in the engine room during a SAFCON (Safety Construction) survey?", "cross_family": false }, { "answer_id": "CERT-LIST-P02-003", "score": 0.5604371428489685, "sibling_score": 0.5604371428489685, "answer_score": null, "sibling_qid": "KOC-2025-01-2059-Q008", "sibling_text": "cof and cof related surveys internal", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Certificates that decide ship type and permitted cargo", "cross_family": false }, { "answer_id": "AFS-309-003", "score": 0.5197813510894775, "sibling_score": 0.5197813510894775, "answer_score": null, "sibling_qid": "KOC-2023-12-0252-Q005", "sibling_text": "how is survey related to afs carried out", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "IAFS Certificate, survey, validity and drydock compliance", "cross_family": true } ] }, { "qid": "KOC-2025-02-0546-Q011", "text": "Dmlc part1 and part 2 Int What action you will take in running motor low insulation alarm without stopping", "family": "MLC", "subtopic": "MLC / DMLC / Work-Rest", "tid": "KOC-2025-02-0546", "tray": "review", "candidates": [ { "answer_id": "EF-DET-P01-003", "score": 0.6517461538314819, "sibling_score": 0.6517461538314819, "answer_score": null, "sibling_qid": "MUM-2026-02-1973-Q006", "sibling_text": "motor ir checked no fault in motor still low insulation alarm what issue", "sibling_family": "", "via": "sibling", "answer_title": "Tracing and locating an earth fault or low-insulation fault on a 440V / 220V / deck circuit", "cross_family": false }, { "answer_id": "IRT-A-013", "score": 0.617691695690155, "sibling_score": 0.617691695690155, "answer_score": null, "sibling_qid": "KOL-2022-05-2560-Q003", "sibling_text": "electrical officer chkd insulation resistance of all motor in e r and make a report and submit to 2e as a 2e what ur action", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Electrical officer hands you an IR report - your action as 2/E", "cross_family": true }, { "answer_id": "IRT-C-011", "score": 0.6160702705383301, "sibling_score": 0.6160702705383301, "answer_score": null, "sibling_qid": "MUM-2023-11-1413-Q004", "sibling_text": "motor insulation found low what all things to check", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Low IR — causes, what to check, restoring it", "cross_family": true } ] }, { "qid": "KOC-2025-02-1027-Q007", "text": "draw cyl head relit valve and where is fitted", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Cover / Head", "tid": "KOC-2025-02-1027", "tray": "review", "candidates": [ { "answer_id": "SAV-001", "score": 0.6953087449073792, "sibling_score": 0.6953087449073792, "answer_score": null, "sibling_qid": "MUM-2026-03-2935-Q005", "sibling_text": "cylinder head safety valve of main engine diagram", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Construction and working of the main automatic starting air valve", "cross_family": false }, { "answer_id": "CO2-SYS-006", "score": 0.6328755617141724, "sibling_score": 0.6328755617141724, "answer_score": null, "sibling_qid": "KOC-2022-01-0048-Q002", "sibling_text": "co2 cylinder head valve cross section drawing and working", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 bottles, manifolds, pilot cylinders and valve components", "cross_family": true }, { "answer_id": "CCH-590-001", "score": 0.6313503384590149, "sibling_score": 0.6313503384590149, "answer_score": null, "sibling_qid": "KOC-2026-05-2127-Q012", "sibling_text": "cylinder head relief arrangements", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "What is the cylinder cover made of and why, and what is the purpose of the O-ring on it?", "cross_family": false } ] }, { "qid": "KOC-2025-02-1027-Q008", "text": "full bore diagram and explain", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2025-02-1027", "tray": "new", "candidates": [ { "answer_id": "MR-DS-PV-B-006", "score": 0.5928869843482971, "sibling_score": 0.5928869843482971, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q005", "sibling_text": "full bore safety valve diagram", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "6. Deck isolating valve, deck relief/safety devices, and cargo-tank pressure", "cross_family": false }, { "answer_id": "BLR-MANHOLE-004", "score": 0.5203795433044434, "sibling_score": 0.5203795433044434, "answer_score": null, "sibling_qid": "KOC-2024-03-0991-Q001", "sibling_text": "draw boiler manhole door spigot clearance n significance need a neat diagram", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Manhole door drawing, construction, and spigot clearance + significance", "cross_family": false }, { "answer_id": "LLC-P05-001", "score": 0.49272483587265015, "sibling_score": 0.49272483587265015, "answer_score": null, "sibling_qid": "KOL-2017-03-0072-Q004", "sibling_text": "freeboard type full in detail including load line diagram", "sibling_family": "", "via": "sibling", "answer_title": "Freeboard, deck line, Plimsoll mark, assignment and scantling draft", "cross_family": false } ] }, { "qid": "KOC-2025-02-1028-Q010", "text": "What is multistaging in MAC, draw PV diagram", "family": "Air Compressor", "subtopic": "MAC / Air Compressor", "tid": "KOC-2025-02-1028", "tray": "new", "candidates": [ { "answer_id": "AC-STAGE-002", "score": 0.5127701759338379, "sibling_score": 0.5127701759338379, "answer_score": null, "sibling_qid": "KOL-2025-12-2031-Q006", "sibling_text": "mac ratio btwn stages", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Intermediate pressure / pressure ratio for minimum work", "cross_family": false }, { "answer_id": "A6-NSEC-005", "score": 0.4664309024810791, "sibling_score": 0.4664309024810791, "answer_score": null, "sibling_qid": "MUM-2026-06-3625-Q002", "sibling_text": "in how many stages its implemented", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "SEEMP — Part I, II & III", "cross_family": true }, { "answer_id": "AC-STAGE-004", "score": 0.4514526128768921, "sibling_score": 0.4514526128768921, "answer_score": 0.35598318874835966, "sibling_qid": "KOC-2024-02-0989-Q005", "sibling_text": "pv diagram of two stage compressor", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "P-V diagram of a two-stage air compressor", "cross_family": false } ] }, { "qid": "KOC-2025-02-1030-Q004", "text": "■AE crankcase safeties", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankcase Explosion", "tid": "KOC-2025-02-1030", "tray": "review", "candidates": [ { "answer_id": "CC-RELIEF-312-005", "score": 0.7326387763023376, "sibling_score": 0.7326387763023376, "answer_score": 0.46678022742271424, "sibling_qid": "MUM-2026-06-3502-Q003", "sibling_text": "safety on crankcase", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Safeties fitted for the crankcase", "cross_family": false }, { "answer_id": "CCE-322-004", "score": 0.6778419613838196, "sibling_score": 0.6778419613838196, "answer_score": null, "sibling_qid": "KOC-2022-02-0957-Q006", "sibling_text": "safeties against crankcase explosion and draw of relief door", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Preventive measures and safety devices", "cross_family": false }, { "answer_id": "CRD-002", "score": 0.6595824956893921, "sibling_score": 0.6595824956893921, "answer_score": null, "sibling_qid": "KOL-2023-08-1749-Q004", "sibling_text": "crankcase safety for the main engine regulation for crankcase relief door", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Regulations & criteria — applicability, area, material, arrester, opening pressure", "cross_family": false } ] }, { "qid": "KOC-2025-02-1030-Q005", "text": "■What are the reasons if you find fumes from mist box?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "OMD / Oil Mist Detector", "tid": "KOC-2025-02-1030", "tray": "new", "candidates": [ { "answer_id": "OMD-001", "score": 0.5615293383598328, "sibling_score": 0.5615293383598328, "answer_score": null, "sibling_qid": "KOC-2026-02-1101-Q014", "sibling_text": "oily mist detectors working", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "The OMD alarm sounds on your watch. What are your actions, the checks and crankcase inspection that follow, and what are the alarm levels?", "cross_family": false }, { "answer_id": "AE-HOT-BLOW-002", "score": 0.5594269633293152, "sibling_score": 0.5594269633293152, "answer_score": 0.4139977157115936, "sibling_qid": "MUM-2025-05-2295-Q006", "sibling_text": "on deck you smell exhaust gas from the vent heads what will be your action and reasons for smell told exhaust from ae crankcase due to blowpast leading to mist box", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "How you know blow-past is occurring in an auxiliary engine — indications and effects", "cross_family": true }, { "answer_id": "INCIN-005", "score": 0.552172064781189, "sibling_score": 0.552172064781189, "answer_score": null, "sibling_qid": "MUM-2026-05-3143-Q003", "sibling_text": "mist box what are the connection in mist box", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Components, blowers and the ‘mist box’ query", "cross_family": true } ] }, { "qid": "KOC-2025-02-1486-Q001", "text": "What all works done on electrical side: started with motor overhaul", "family": "Electrical - Motors & Starters", "subtopic": "Motor Not Starting", "tid": "KOC-2025-02-1486", "tray": "review", "candidates": [ { "answer_id": "IRT-C-011", "score": 0.6970314979553223, "sibling_score": 0.6970314979553223, "answer_score": null, "sibling_qid": "KOC-2022-07-1186-Q006", "sibling_text": "low insulation motor overhaul", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Low IR — causes, what to check, restoring it", "cross_family": false }, { "answer_id": "ROTSTAT-C-002", "score": 0.682675302028656, "sibling_score": 0.682675302028656, "answer_score": null, "sibling_qid": "MUM-2024-06-1434-Q006", "sibling_text": "motor overhaul checks in rotor and stator", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Rotor & stator overhaul and inspection checks", "cross_family": false }, { "answer_id": "IRT-C-013", "score": 0.6737247109413147, "sibling_score": 0.6737247109413147, "answer_score": null, "sibling_qid": "MUM-2025-11-1769-Q002", "sibling_text": "motor bring back from workshop after overhaul", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Motor back from shore / rewind — checks before commissioning", "cross_family": false } ] }, { "qid": "KOC-2025-02-1486-Q004", "text": "Motor - terminals - arrangements", "family": "Electrical - Motors & Starters", "subtopic": "Motor Terminals / Connections", "tid": "KOC-2025-02-1486", "tray": "review", "candidates": [ { "answer_id": "IP-ENCL-001", "score": 0.7678810358047485, "sibling_score": 0.7678810358047485, "answer_score": null, "sibling_qid": "MUM-2026-01-1899-Q009", "sibling_text": "motor number of terminal", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "IP rating of motors — what the numbers mean", "cross_family": false }, { "answer_id": "CONT-317-003", "score": 0.7475126385688782, "sibling_score": 0.7475126385688782, "answer_score": 0.5147488534450531, "sibling_qid": "MUM-2024-07-1445-Q002", "sibling_text": "motor received overhaul terminal markings have gone how to identify the terminals", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Continuity to confirm terminal identity after overhaul or rewind", "cross_family": false }, { "answer_id": "REV-MOT-BF67-001", "score": 0.6870697140693665, "sibling_score": 0.6870697140693665, "answer_score": null, "sibling_qid": "KOC-2025-10-1598-Q005", "sibling_text": "single phase motor terminal connection for reversing", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "How do you reverse a single-phase induction motor — what is the wiring connection?", "cross_family": false } ] }, { "qid": "KOC-2025-02-1486-Q005", "text": "SW pump specifications , burnt out - say specs for ordering", "family": "Electrical - Motors & Starters", "subtopic": "Motor Specification / Ordering", "tid": "KOC-2025-02-1486", "tray": "review", "candidates": [ { "answer_id": "IRT-C-004", "score": 0.7150620222091675, "sibling_score": 0.7150620222091675, "answer_score": null, "sibling_qid": "KOC-2026-04-1744-Q006", "sibling_text": "sw pump specifications and ir test and value", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "How to carry out an IR test on a motor", "cross_family": false }, { "answer_id": "IP-ENCL-001", "score": 0.6970272660255432, "sibling_score": 0.6970272660255432, "answer_score": null, "sibling_qid": "KOC-2025-02-1497-Q002", "sibling_text": "how to order a s w pump motor asked about ip rating", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "IP rating of motors — what the numbers mean", "cross_family": false }, { "answer_id": "IP-ENCL-002", "score": 0.6542337536811829, "sibling_score": 0.6542337536811829, "answer_score": null, "sibling_qid": "KOC-2025-12-1658-Q005", "sibling_text": "how to order main sea water pump motor and ip and class", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Suitable IP rating by location — ER, deck, pump, generator", "cross_family": false } ] }, { "qid": "KOC-2025-02-1487-Q007", "text": "How to order sea water pump motor? Int", "family": "Electrical - Motors & Starters", "subtopic": "Motor Specification / Ordering", "tid": "KOC-2025-02-1487", "tray": "review", "candidates": [ { "answer_id": "IP-ENCL-002", "score": 0.8190597891807556, "sibling_score": 0.8190597891807556, "answer_score": null, "sibling_qid": "KOC-2026-01-1692-Q005", "sibling_text": "how to order main sea water pump motor and ip and class", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Suitable IP rating by location — ER, deck, pump, generator", "cross_family": false }, { "answer_id": "IP-ENCL-001", "score": 0.7231952548027039, "sibling_score": 0.7231952548027039, "answer_score": null, "sibling_qid": "KOC-2025-02-1497-Q002", "sibling_text": "how to order a s w pump motor asked about ip rating", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "IP rating of motors — what the numbers mean", "cross_family": false }, { "answer_id": "CABLE-INS-C-001", "score": 0.6918820738792419, "sibling_score": 0.6918820738792419, "answer_score": null, "sibling_qid": "MUM-2024-07-1436-Q004", "sibling_text": "sea water pump cable burned how will you order", "sibling_family": "", "via": "sibling", "answer_title": "Ordering & selecting a cable; what decides current-carrying capacity", "cross_family": false } ] }, { "qid": "KOC-2025-02-1490-Q004", "text": "lpg tank crosssection", "family": "Cargo Ops - Gas Carriers", "subtopic": "Cargo Tank Construction", "tid": "KOC-2025-02-1490", "tray": "review", "candidates": [ { "answer_id": "SHELL-PLT-B-001", "score": 0.6877554655075073, "sibling_score": 0.6877554655075073, "answer_score": null, "sibling_qid": "KOC-2026-03-0853-Q002", "sibling_text": "draw cross section of ship lpg lotz of cross type of tank material of tank how tank is fixed hold space y inerting show bilge keel show sheer strake purpose of sheer strake", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Sheer strake — location, why strengthened, deck-edge / gunwale connection", "cross_family": false }, { "answer_id": "SHIPTYPE-BTC-004", "score": 0.6579396724700928, "sibling_score": 0.6579396724700928, "answer_score": null, "sibling_qid": "KOC-2025-03-0568-Q002", "sibling_text": "tank cross section cross qus", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Oil tanker hull construction — and its construction-related electrical safety", "cross_family": true }, { "answer_id": "GC-TANK-004", "score": 0.6521031260490417, "sibling_score": 0.6521031260490417, "answer_score": null, "sibling_qid": "KOC-2025-11-1976-Q004", "sibling_text": "lpg tank construction explanation only", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Gas-carrier cargo tank construction: materials, insulation, fixing and tank safeties", "cross_family": false } ] }, { "qid": "KOC-2025-02-1490-Q006", "text": "fsi and psi", "family": "Surveys - Statutory", "subtopic": "PSC / Flag / RO / CIC / MoU", "tid": "KOC-2025-02-1490", "tray": "review", "candidates": [ { "answer_id": "FLAG-ST-003", "score": 0.7215260863304138, "sibling_score": 0.7215260863304138, "answer_score": null, "sibling_qid": "KOC-2025-01-0520-Q012", "sibling_text": "fsi and psi", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Flag state vs port state / PSC / PSI vs class vs coastal state", "cross_family": false }, { "answer_id": "PSC-RO-P02-002", "score": 0.5655584931373596, "sibling_score": 0.5655584931373596, "answer_score": null, "sibling_qid": "MUM-2024-12-0226-Q002", "sibling_text": "psc fsi", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "How does PSC work with the flag State, RO, CIC and MoU frameworks?", "cross_family": false }, { "answer_id": "FSE-P01-001", "score": 0.4502665400505066, "sibling_score": 0.4502665400505066, "answer_score": null, "sibling_qid": "MUM-2025-11-0570-Q012", "sibling_text": "define fse", "sibling_family": "", "via": "sibling", "answer_title": "What is free surface effect? Explain the basic concept.", "cross_family": false } ] }, { "qid": "KOC-2025-02-1490-Q007", "text": "certificate of fitness explanation", "family": "Maritime Law & Certificates", "subtopic": "COFS", "tid": "KOC-2025-02-1490", "tray": "new", "candidates": [ { "answer_id": "BCH-IBC-A-003", "score": 0.5452725887298584, "sibling_score": 0.5452725887298584, "answer_score": 0.4074729591608047, "sibling_qid": "KOC-2023-06-0193-Q013", "sibling_text": "fitness cert", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Certificate of Fitness — what a chemical tanker is allowed to carry", "cross_family": true }, { "answer_id": "COC-001", "score": 0.5308670401573181, "sibling_score": 0.5308670401573181, "answer_score": null, "sibling_qid": "MUM-2026-06-3410-Q007", "sibling_text": "certificate of class condition of class", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is a Condition of Class? Give examples, say where it is found, how much time is given to rectify it, and what happens if it is not met in time.", "cross_family": true }, { "answer_id": "CERT-LIST-P02-005", "score": 0.5295499563217163, "sibling_score": 0.5295499563217163, "answer_score": null, "sibling_qid": "MUM-2026-06-3644-Q006", "sibling_text": "relevance and application of certificate of class", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Class certificate / classification certificate", "cross_family": true } ] }, { "qid": "KOC-2025-02-1490-Q011", "text": "ism code some cross", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOC-2025-02-1490", "tray": "new", "candidates": [ { "answer_id": "ISM-ELEM-002", "score": 0.5992020964622498, "sibling_score": 0.5992020964622498, "answer_score": null, "sibling_qid": "MUM-2026-06-3653-Q001", "sibling_text": "ism code", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the ISM Code?", "cross_family": false }, { "answer_id": "ISM-AUD-P02-002", "score": 0.27051310837268827, "sibling_score": null, "answer_score": 0.27051310837268827, "sibling_qid": "", "sibling_text": "ism code what it is purpose objectives and structure full name carries both limbs safe operation of ships and pollution prevention never drop the pollution half adopted by resolution a 741 18 in 1993 given legal force through solas chapter ix in force 1 july 1998 phase 1", "sibling_family": "", "via": "answer_title", "answer_title": "ISM Code — what it is, purpose, objectives and structure", "cross_family": false }, { "answer_id": "IMO-CODES-P03-001", "score": 0.2700305849313736, "sibling_score": null, "answer_score": 0.2700305849313736, "sibling_qid": "", "sibling_text": "important imo conventions and codes parent links", "sibling_family": "", "via": "answer_title", "answer_title": "Important IMO conventions and codes: parent links", "cross_family": false } ] }, { "qid": "KOC-2025-02-1492-Q006", "text": "How sequential starting of standby generator happens ?", "family": "Electrical - Generator & Alternator", "subtopic": "Black Out Test / Recovery", "tid": "KOC-2025-02-1492", "tray": "review", "candidates": [ { "answer_id": "PTRIP-BO-003", "score": 0.6771702766418457, "sibling_score": 0.6771702766418457, "answer_score": 0.52406747341156, "sibling_qid": "MUM-2026-05-3351-Q007", "sibling_text": "sequential starting", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Sequential starting after a blackout — what starts first, and why?", "cross_family": false }, { "answer_id": "EMCY-DG-P03-004", "score": 0.6571980118751526, "sibling_score": 0.6571980118751526, "answer_score": 0.4588870882987976, "sibling_qid": "KOL-2025-09-2854-Q001", "sibling_text": "sequential starting after black out breaker will reset automatically or manually", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Blackout sequence — starting the set and taking load back", "cross_family": false }, { "answer_id": "EMG-DG-P04-004", "score": 0.5941228270530701, "sibling_score": 0.5941228270530701, "answer_score": null, "sibling_qid": "KOC-2025-08-1561-Q010", "sibling_text": "how nxt gen starts automatically wen the running generator trips", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Safeties, trips, protections & failure to start / come on load", "cross_family": false } ] }, { "qid": "KOC-2025-02-1493-Q006", "text": "Safety equipment in GMDSS. Which equipment is measuring speed on the bridge?", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "KOC-2025-02-1493", "tray": "review", "candidates": [ { "answer_id": "DES-571-001", "score": 0.6767297387123108, "sibling_score": 0.6767297387123108, "answer_score": 0.47237839102745055, "sibling_qid": "KOC-2023-11-1300-Q007", "sibling_text": "device used to measure speed of ship doppler log", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "The Doppler log — measuring the ship's speed by the Doppler effect", "cross_family": false }, { "answer_id": "DES-571-002", "score": 0.5909861326217651, "sibling_score": 0.5909861326217651, "answer_score": 0.4732289373874664, "sibling_qid": "KOC-2023-10-0225-Q014", "sibling_text": "depth and speed what instrument", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Instruments that measure depth and speed", "cross_family": false }, { "answer_id": "RES-PROP-P03-004", "score": 0.5581402778625488, "sibling_score": 0.5581402778625488, "answer_score": null, "sibling_qid": "KOC-2025-12-0761-Q006", "sibling_text": "checks during seatrial how ship speed is calculated answered speed log then said distance trveled by time", "sibling_family": "", "via": "sibling", "answer_title": "4. Sea trials before handover and ship-speed verification", "cross_family": false } ] }, { "qid": "KOC-2025-02-1495-Q006", "text": "How to order sea water pump which has burnt", "family": "Electrical - Motors & Starters", "subtopic": "Motor Specification / Ordering", "tid": "KOC-2025-02-1495", "tray": "review", "candidates": [ { "answer_id": "CABLE-INS-C-001", "score": 0.7900415062904358, "sibling_score": 0.7900415062904358, "answer_score": null, "sibling_qid": "MUM-2024-07-1436-Q004", "sibling_text": "sea water pump cable burned how will you order", "sibling_family": "", "via": "sibling", "answer_title": "Ordering & selecting a cable; what decides current-carrying capacity", "cross_family": false }, { "answer_id": "IP-ENCL-002", "score": 0.7492650747299194, "sibling_score": 0.7492650747299194, "answer_score": null, "sibling_qid": "KOC-2026-01-1692-Q005", "sibling_text": "how to order main sea water pump motor and ip and class", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Suitable IP rating by location — ER, deck, pump, generator", "cross_family": false }, { "answer_id": "IRT-C-012", "score": 0.6646764874458313, "sibling_score": 0.6646764874458313, "answer_score": 0.45285524129867555, "sibling_qid": "KOL-2019-07-2304-Q004", "sibling_text": "one pump motor immersed in sea water how will you overhaul", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Seawater-soaked / flooded motor — overhaul & restore IR", "cross_family": false } ] }, { "qid": "KOC-2025-02-1496-Q006", "text": "How to find the motor is star or delta . Draw how the terminal points connected", "family": "Electrical - Motors & Starters", "subtopic": "Star-Delta Starter", "tid": "KOC-2025-02-1496", "tray": "review", "candidates": [ { "answer_id": "CONT-317-003", "score": 0.7779979109764099, "sibling_score": 0.7779979109764099, "answer_score": null, "sibling_qid": "MUM-2026-01-1899-Q004", "sibling_text": "how many terminals are there in a motor how to connect them in start and delta", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Continuity to confirm terminal identity after overhaul or rewind", "cross_family": false }, { "answer_id": "STR-DEC-A-001", "score": 0.7682262063026428, "sibling_score": 0.7682262063026428, "answer_score": null, "sibling_qid": "KOL-2023-01-2635-Q003", "sibling_text": "how to determine motor used to be of star delta starters", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "SDST-A-001", "score": 0.7652919888496399, "sibling_score": 0.7652919888496399, "answer_score": null, "sibling_qid": "KOC-2023-01-0127-Q016", "sibling_text": "star delta in motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false } ] }, { "qid": "KOC-2025-02-1497-Q004", "text": "Explanation of boiler water level control in my last ship. I started boiler three element control. He asked me again, is that was in ur last ship? Told yes and continued. Then he told, you can even choose easiest level control. He was expecting float level control, but I completed with 3 element control. Then he asked how the feed water flow is measured", "family": "Boilers - Operations & Firing", "subtopic": "Automatic Combustion Control", "tid": "KOC-2025-02-1497", "tray": "review", "candidates": [ { "answer_id": "LWL-001", "score": 0.7986403703689575, "sibling_score": 0.7986403703689575, "answer_score": 0.6206919312477112, "sibling_qid": "KOC-2022-05-1183-Q004", "sibling_text": "3 elements control in boiler water level control why", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Explain three-element boiler water level control — the three elements, how it removes swell and shrinkage, and how the PID works", "cross_family": false }, { "answer_id": "DP-TX-003", "score": 0.7787582874298096, "sibling_score": 0.7787582874298096, "answer_score": 0.6065573483705521, "sibling_qid": "KOL-2021-07-1904-Q006", "sibling_text": "4 boiler water level control 3 element", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler feed-water control with the DP cell — single, two and three-element", "cross_family": false }, { "answer_id": "LWL-002", "score": 0.7781844139099121, "sibling_score": 0.7781844139099121, "answer_score": 0.606997263431549, "sibling_qid": "KOC-2023-08-1279-Q007", "sibling_text": "3 point control 2 point control and 1 point control boiler water level", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "What is the difference between one-, two- and three-element boiler water level control, and what are the water level controllers?", "cross_family": false } ] }, { "qid": "KOC-2025-02-1498-Q003", "text": "Why 6 terminal in motor", "family": "Electrical - Motors & Starters", "subtopic": "Star-Delta Starter", "tid": "KOC-2025-02-1498", "tray": "new", "candidates": [ { "answer_id": "CONT-317-003", "score": 0.6304214596748352, "sibling_score": 0.6304214596748352, "answer_score": 0.48275487422943114, "sibling_qid": "MUM-2023-03-1381-Q001", "sibling_text": "motor has gone for overhaul outside these jokers have not put d marking on d terminal after overhaul u receive the motor without marking how will u know which is for start run and normal", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Continuity to confirm terminal identity after overhaul or rewind", "cross_family": false }, { "answer_id": "SDC-002", "score": 0.6209716796875, "sibling_score": 0.6209716796875, "answer_score": 0.5179050654172898, "sibling_qid": "KOC-2024-01-1325-Q006", "sibling_text": "why 6 terminals in motor why 16 18 connections in alternator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "How do you identify star or delta at the terminal box, and why the terminal counts?", "cross_family": true }, { "answer_id": "IP-ENCL-001", "score": 0.6026552319526672, "sibling_score": 0.6026552319526672, "answer_score": null, "sibling_qid": "MUM-2026-04-2122-Q003", "sibling_text": "motor number of terminal", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "IP rating of motors — what the numbers mean", "cross_family": false } ] }, { "qid": "KOC-2025-02-1498-Q005", "text": "What electrical work done onboard,motor overhauling?", "family": "Electrical - Motors & Starters", "subtopic": "Motor Not Starting", "tid": "KOC-2025-02-1498", "tray": "review", "candidates": [ { "answer_id": "IRT-C-011", "score": 0.6830724477767944, "sibling_score": 0.6830724477767944, "answer_score": null, "sibling_qid": "KOC-2022-07-1186-Q006", "sibling_text": "low insulation motor overhaul", "sibling_family": "Electrical - 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How many bearings? Type of bearing? How vertical and horizontal vibrations are minimised?", "family": "Purifier & Centrifuges", "subtopic": "Purifier Operation / Bowl", "tid": "KOC-2025-02-1903", "tray": "review", "candidates": [ { "answer_id": "PURIF-BOWL-P02-003", "score": 0.7238431572914124, "sibling_score": 0.7238431572914124, "answer_score": 0.5146765053272248, "sibling_qid": "KOC-2026-05-2129-Q011", "sibling_text": "purifier bearings on vertical shaft of purifier and functions of each", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Vertical shaft, bowl height, bearings & load support — checks, adjustment, overhaul, renewal", "cross_family": false }, { "answer_id": "PURIF-BOWL-P02-002", "score": 0.6021255850791931, "sibling_score": 0.6021255850791931, "answer_score": null, "sibling_qid": "KOL-2019-10-1487-Q007", "sibling_text": "purifier vibration after overhaul", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Drive, rated RPM, overload, vibration / wobbling & dynamic balancing — causes and troubleshooting", "cross_family": false }, { "answer_id": "PUR-BOWL-P03-FINAL-1-003", "score": 0.590061366558075, "sibling_score": 0.590061366558075, "answer_score": null, "sibling_qid": "KOL-2022-07-3554-Q003", "sibling_text": "purifier overflow reason who carry weight types of bearing in purifier", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "3. Overflow, Oil-Over-Water and Sludge Carry-Over — Causes, Checks and After-Overhaul Action", "cross_family": false } ] }, { "qid": "KOC-2025-02-2060-Q006", "text": "Xhead bearing inspection, in place?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Crosshead Bearing", "tid": "KOC-2025-02-2060", "tray": "review", "candidates": [ { "answer_id": "XHD-BRG-B-003", "score": 0.7860834002494812, "sibling_score": 0.7860834002494812, "answer_score": 0.5062278866767883, "sibling_qid": "KOL-2019-05-3237-Q003", "sibling_text": "x head bottom shell bearing inspection", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Inspecting the crosshead pin and bottom shell once out", "cross_family": false }, { "answer_id": "XHD-BRG-C-001", "score": 0.7549585700035095, "sibling_score": 0.7549585700035095, "answer_score": null, "sibling_qid": "KOC-2026-05-2142-Q005", "sibling_text": "x head bearing inspection with piston in place", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "A. Present the crosshead bottom shell for survey, piston in place", "cross_family": false }, { "answer_id": "XHD-BRG-B-004", "score": 0.7427066564559937, "sibling_score": 0.7427066564559937, "answer_score": null, "sibling_qid": "KOL-2019-10-1487-Q005", "sibling_text": "x head bearing survey and other bearing clearance taking procedure", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Measuring crosshead bearing and guide-shoe clearances", "cross_family": false } ] }, { "qid": "KOC-2025-02-2060-Q008", "text": "Safety valve setting of egb?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2025-02-2060", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-001", "score": 0.7752034068107605, "sibling_score": 0.7752034068107605, "answer_score": null, "sibling_qid": "KOC-2026-05-2126-Q006", "sibling_text": "egb safety valve setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "ECON-EGB-004", "score": 0.6657249331474304, "sibling_score": 0.6657249331474304, "answer_score": 0.4831918507814407, "sibling_qid": "KOL-2026-09-4304-Q003", "sibling_text": "safety valve setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Safety-valve setting after overhaul & why set higher than the boiler", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.6253369450569153, "sibling_score": 0.6253369450569153, "answer_score": null, "sibling_qid": "CHE-2026-05-0568-Q013", "sibling_text": "boiler safety valve how you confirm the proper setting of safety valve engineer observation", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false } ] }, { "qid": "KOC-2025-03-0550-Q003", "text": "What is ISM audits", "family": "ISM Code", "subtopic": "ISM / SMS / Audit", "tid": "KOC-2025-03-0550", "tray": "review", "candidates": [ { "answer_id": "ISM-AUDIT-P01-002", "score": 0.704021155834198, "sibling_score": 0.704021155834198, "answer_score": null, "sibling_qid": "CHE-2026-08-3877-Q006", "sibling_text": "what are the audits carried out in ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM/SMS audits and verifications — types, who conducts them, intervals and validity", "cross_family": false }, { "answer_id": "ISM-SMC-B-003", "score": 0.6711968779563904, "sibling_score": 0.6711968779563904, "answer_score": null, "sibling_qid": "MUM-2026-07-3676-Q008", "sibling_text": "ism smc how many audits", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "SMC audit cycle — initial, intermediate, renewal, additional", "cross_family": false }, { "answer_id": "ISM-AUD-P03-002", "score": 0.6655846238136292, "sibling_score": 0.6655846238136292, "answer_score": 0.5083835870027542, "sibling_qid": "KOC-2026-05-0038-Q005", "sibling_text": "ism audit", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM audit / survey — what it is, who conducts it, what it covers onboard", "cross_family": false } ] }, { "qid": "KOC-2025-03-0552-Q015", "text": "Difference between rolling and heeling", "family": "", "subtopic": "Static / Dynamic Stability", "tid": "KOC-2025-03-0552", "tray": "new", "candidates": [ { "answer_id": "BK-001", "score": 0.48910069465637207, "sibling_score": 0.48910069465637207, "answer_score": null, "sibling_qid": "KOC-2025-07-0633-Q017", "sibling_text": "how its reducing rolling", "sibling_family": "", "via": "sibling", "answer_title": "What is a bilge keel and what is its purpose?", "cross_family": false }, { "answer_id": "PAR-ROLL-001", "score": 0.4799330234527588, "sibling_score": 0.4799330234527588, "answer_score": null, "sibling_qid": "CHE-2026-08-0664-Q005", "sibling_text": "parametric rolling how it affects stability expecting detailed comparison with regular rolling", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "01. What is parametric rolling?", "cross_family": false }, { "answer_id": "PAR-ROLL-004", "score": 0.473838746547699, "sibling_score": 0.473838746547699, "answer_score": null, "sibling_qid": "MUM-2025-09-0473-Q005", "sibling_text": "what is parametric rolling and synchronus rolling", "sibling_family": "", "via": "sibling", "answer_title": "04. 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Gas Carriers", "via": "sibling", "answer_title": "Hydrate formation in LPG cargo – prevention and treatment", "cross_family": false }, { "answer_id": "IGC-GAS-012", "score": 0.7014263272285461, "sibling_score": 0.7014263272285461, "answer_score": null, "sibling_qid": "MUM-2025-05-0269-Q001", "sibling_text": "lng safety in compressor room motor room safety arrangement near accomodation door in lng tanker boil off line going to the er what safety arrangement present what certificate does a gas carrier carrier that is not carried by tanker fire fighting arrangement on the liquid dome of a cargo tank isps code which level is the highest is cargo operation allowed in that level difference between igc and gc code vikrant rai what is bleve and what arrangement on ship to provide safety against this how do you prepare for surface hardeneing mep and mip", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Compressor-room and motor-room safeties (including the fusible plug)", "cross_family": false } ] }, { "qid": "KOC-2025-03-0560-Q001", "text": "Stern frame Construction diagram", "family": "Ship Construction & Stability", "subtopic": "Stern Frame / Transom", "tid": "KOC-2025-03-0560", "tray": "review", "candidates": [ { "answer_id": "DUS-P5-03", "score": 0.7854257225990295, "sibling_score": 0.7854257225990295, "answer_score": 0.5950502991676331, "sibling_qid": "KOC-2021-07-0010-Q005", "sibling_text": "stern frame diagram", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Stern frame construction, cross-section and rudder-axis sketch", "cross_family": true }, { "answer_id": "SPR-STERN-002", "score": 0.7549102306365967, "sibling_score": 0.7549102306365967, "answer_score": null, "sibling_qid": "KOC-2022-08-0083-Q001", "sibling_text": "draw stern frame show arrangement how stern tube is supported on fwd area of stern frame", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Propeller draw & dry-dock blade repair", "cross_family": true }, { "answer_id": "STS-P02-003", "score": 0.6776900291442871, "sibling_score": 0.6776900291442871, "answer_score": 0.539458167552948, "sibling_qid": "KOC-2023-01-1806-Q011", "sibling_text": "stern tube diagram", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "STS-P02-03 - 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Statutory", "via": "sibling", "answer_title": "Load line survey preparation as Second Engineer: engine-room scope, machinery openings, tanks/vents, valves and overboard checks", "cross_family": false } ] }, { "qid": "KOC-2025-03-0561-Q002", "text": "Type of vessels: LPG", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2025-03-0561", "tray": "review", "candidates": [ { "answer_id": "LPG-LNG-009", "score": 0.7813476920127869, "sibling_score": 0.7813476920127869, "answer_score": 0.539942616224289, "sibling_qid": "CHE-2026-04-0164-Q001", "sibling_text": "type of ship sailed lpg carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Gas-carrier fundamentals and ship-specific traps", "cross_family": false }, { "answer_id": "IGC-GAS-004", "score": 0.7083861231803894, "sibling_score": 0.7083861231803894, "answer_score": null, "sibling_qid": "KOL-2025-08-1014-Q002", "sibling_text": "type of ship sailed lpg classification of gas carriers of as per igc code", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Ship-type classification under the IGC Code — 1G / 2G / 2PG / 3G", "cross_family": true }, { "answer_id": "LPG-LNG-001", "score": 0.6760515570640564, "sibling_score": 0.6760515570640564, "answer_score": null, "sibling_qid": "MUM-2026-09-3961-Q001", "sibling_text": "how lpg ship differ from other ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "LPG vs LNG – properties, carriage and comparison", "cross_family": false } ] }, { "qid": "KOC-2025-03-0562-Q009", "text": "Mlc title", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOC-2025-03-0562", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.617310106754303, "sibling_score": 0.617310106754303, "answer_score": 0.2756523072719574, "sibling_qid": "KOC-2026-05-2135-Q011", "sibling_text": "mlc titles explain title 1 explain dmlc part 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "MLC-WRH-B-006", "score": 0.5386515259742737, "sibling_score": 0.5386515259742737, "answer_score": null, "sibling_qid": "MUM-2026-07-3680-Q005", "sibling_text": "what is mlc certificate under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false }, { "answer_id": "MLC-WRH-B-007", "score": 0.4739721417427063, "sibling_score": 0.4739721417427063, "answer_score": null, "sibling_qid": "MUM-2026-01-0701-Q002", "sibling_text": "detainable deficiency of mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false } ] }, { "qid": "KOC-2025-03-0562-Q010", "text": "Mlc title 1 explain", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOC-2025-03-0562", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.6320223808288574, "sibling_score": 0.6320223808288574, "answer_score": 0.2673874467611313, "sibling_qid": "KOC-2026-05-2135-Q011", "sibling_text": "mlc titles explain title 1 explain dmlc part 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "MLC-WRH-B-006", "score": 0.44744980335235596, "sibling_score": 0.44744980335235596, "answer_score": null, "sibling_qid": "MUM-2026-07-3680-Q005", "sibling_text": "what is mlc certificate under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false }, { "answer_id": "MLC-WRH-B-007", "score": 0.3964681625366211, "sibling_score": 0.3964681625366211, "answer_score": null, "sibling_qid": "MUM-2026-04-0885-Q003", "sibling_text": "what is mlc detainable deficiency", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false } ] }, { "qid": "KOC-2025-03-0563-Q007", "text": "Orb weekly entry", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "KOC-2025-03-0563", "tray": "review", "candidates": [ { "answer_id": "ORB-IOPP-OWS-004", "score": 0.7895368337631226, "sibling_score": 0.7895368337631226, "answer_score": 0.3699170410633087, "sibling_qid": "KOC-2025-01-2059-Q013", "sibling_text": "weekly entries of orb internal", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Weekly ORB entries — the mandatory sludge retention record, the bunker entry, and what is voluntary", "cross_family": false }, { "answer_id": "OWS-ORB-006", "score": 0.5927841663360596, "sibling_score": 0.5927841663360596, "answer_score": null, "sibling_qid": "MUM-2024-02-0162-Q004", "sibling_text": "orb entries", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "6. Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-002", "score": 0.564303457736969, "sibling_score": 0.564303457736969, "answer_score": null, "sibling_qid": "CHE-2024-10-0509-Q002", "sibling_text": "orb entries all in detail", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "The Oil Record Book Part I — purpose, the letter codes, and how entries are made", "cross_family": false } ] }, { "qid": "KOC-2025-03-0564-Q001", "text": "If hull has damaged how you will report", "family": "Surveys - Statutory", "subtopic": "Defects on Board / Class Action", "tid": "KOC-2025-03-0564", "tray": "review", "candidates": [ { "answer_id": "ISM-AUD-P03-003", "score": 0.6762586832046509, "sibling_score": 0.6762586832046509, "answer_score": null, "sibling_qid": "MUM-2026-03-0853-Q005", "sibling_text": "hull damage has taken place how will you report to your company following sms", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "Non-conformity, major non-conformity and incident reporting under SMS", "cross_family": true }, { "answer_id": "HULL-DD-003", "score": 0.6528102159500122, "sibling_score": 0.6528102159500122, "answer_score": 0.4296826660633087, "sibling_qid": "KOC-2021-05-1755-Q011", "sibling_text": "hull breach and what actions taken to report to company", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "3. Side-shell hole or hull breach at the waterline: emergency action and repair", "cross_family": true }, { "answer_id": "HULL-DD-006", "score": 0.6227563619613647, "sibling_score": 0.6227563619613647, "answer_score": 0.5243567645549774, "sibling_qid": "CHE-2025-07-0404-Q003", "sibling_text": "dent on your ship how to report to office", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "7. Hull damage / collision / dent reporting and shell-plating designation", "cross_family": true } ] }, { "qid": "KOC-2025-03-0565-Q002", "text": "cargo tank inspection procedure", "family": "Surveys - Statutory", "subtopic": "Surveys - General", "tid": "KOC-2025-03-0565", "tray": "review", "candidates": [ { "answer_id": "GAS-DET-005", "score": 0.6936013698577881, "sibling_score": 0.6936013698577881, "answer_score": null, "sibling_qid": "MUM-2026-03-2930-Q008", "sibling_text": "what are the checks you do on gas tanker cargo tanks", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Tankscope: purpose, working, when to use, gases measured", "cross_family": true }, { "answer_id": "ESE-P01-005", "score": 0.682711124420166, "sibling_score": 0.682711124420166, "answer_score": null, "sibling_qid": "KOL-2018-03-3962-Q003", "sibling_text": "after discharging u have to do tank inspection tell all the steps and checks to be made before entry", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "Cargo tank, pump-room, ballast tank or duct-keel entry preparation", "cross_family": true }, { "answer_id": "ESE-P01-004", "score": 0.6737111806869507, "sibling_score": 0.6737111806869507, "answer_score": null, "sibling_qid": "MUM-2026-03-0866-Q012", "sibling_text": "fuel tank inspection how to do", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "Fuel-oil, settling, bunker or double-bottom tank entry and inspection", "cross_family": true } ] }, { "qid": "KOC-2025-03-0565-Q003", "text": "Explosion meter and tankscope difference and working", "family": "Gas Detection & Instruments", "subtopic": "Explosimeter / Gas Detector", "tid": "KOC-2025-03-0565", "tray": "review", "candidates": [ { "answer_id": "GAS-DET-006", "score": 0.7935160994529724, "sibling_score": 0.7935160994529724, "answer_score": 0.6094295382499695, "sibling_qid": "KOC-2026-09-2199-Q002", "sibling_text": "explosimeter and tank scope difference", "sibling_family": "Gas Detection & Instruments", "via": "sibling", "answer_title": "Tankscope vs explosimeter: construction, working, where to use, gases", "cross_family": false }, { "answer_id": "GAS-DET-008", "score": 0.6859905123710632, "sibling_score": 0.6859905123710632, "answer_score": 0.4941056251525879, "sibling_qid": "KOC-2026-09-2176-Q003", "sibling_text": "explosimeter working", "sibling_family": "Gas Detection & Instruments", "via": "sibling", "answer_title": "Explosimeter: construction, working, calibration, gases detected", "cross_family": false }, { "answer_id": "GAS-DET-005", "score": 0.5368802338838577, "sibling_score": null, "answer_score": 0.5368802338838577, "sibling_qid": "", "sibling_text": "tankscope purpose working when to use gases measured in the traditional tankscope role reads hydrocarbon cargo vapour as by volume for inerting gassing up and purging exact gas basis range and any extra channels are maker model specific some modern variants use ir principle non catalytic heated filament thermal conductivity katharometer the gas does not burn wheatstone bridge compensator filament", "sibling_family": "", "via": "answer_title", "answer_title": "Tankscope: purpose, working, when to use, gases measured", "cross_family": false } ] }, { "qid": "KOC-2025-03-0567-Q003", "text": "Liferaft davit safeties", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Davit / Release Gear", "tid": "KOC-2025-03-0567", "tray": "review", "candidates": [ { "answer_id": "LB-DAVIT-HRU-008", "score": 0.7519034743309021, "sibling_score": 0.7519034743309021, "answer_score": 0.552890294790268, "sibling_qid": "KOC-2026-10-2223-Q005", "sibling_text": "safeties in freefall lifeboat davit", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat davit safety devices", "cross_family": false }, { "answer_id": "DRG-583-A-008", "score": 0.7519016861915588, "sibling_score": 0.7519016861915588, "answer_score": 0.5092056095600128, "sibling_qid": "KOC-2025-01-0509-Q005", "sibling_text": "lifeboat davit safeties", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Davit safeties, and the limit switch", "cross_family": false }, { "answer_id": "DRG-B-005", "score": 0.7303090691566467, "sibling_score": 0.7303090691566467, "answer_score": 0.5059776067733764, "sibling_qid": "KOC-2025-09-0658-Q004", "sibling_text": "lifeboat davit winch safeties", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Davit and winch safeties", "cross_family": false } ] }, { "qid": "KOC-2025-03-0568-Q001", "text": "Type of vessel", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2025-03-0568", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8509957194328308, "sibling_score": 0.8509957194328308, "answer_score": null, "sibling_qid": "MUM-2026-06-3384-Q001", "sibling_text": "type of vessel", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.7775244116783142, "sibling_score": 0.7775244116783142, "answer_score": null, "sibling_qid": "CHE-2026-02-0481-Q001", "sibling_text": "type of vessels sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7703580260276794, "sibling_score": 0.7703580260276794, "answer_score": 0.5232111006975174, "sibling_qid": "CHE-2026-02-0109-Q001", "sibling_text": "type of ship explain what type is your vessel explain their type and difference", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "KOC-2025-03-0570-Q001", "text": "what all electrical job done on board", "family": "General Marine Engineering", "subtopic": "Electrical Job / Shipboard Maintenance", "tid": "KOC-2025-03-0570", "tray": "review", "candidates": [ { "answer_id": "IRT-A-016", "score": 0.7828413844108582, "sibling_score": 0.7828413844108582, "answer_score": null, "sibling_qid": "KOC-2026-08-2108-Q012", "sibling_text": "onboard major work done in electrical", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Electrical maintenance you do onboard", "cross_family": false }, { "answer_id": "ALT-MAINT-A-001", "score": 0.6738344430923462, "sibling_score": 0.6738344430923462, "answer_score": null, "sibling_qid": "KOL-2021-03-2433-Q001", "sibling_text": "maintenance on electrical equipment onboard", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Routine maintenance & care of a ship’s alternator", "cross_family": true }, { "answer_id": "MSB-ESB-D-001", "score": 0.629061222076416, "sibling_score": 0.629061222076416, "answer_score": null, "sibling_qid": "MUM-2024-02-1424-Q001", "sibling_text": "electrical power distribution on ur ship", "sibling_family": "", "via": "sibling", "answer_title": "Main & emergency switchboards: function, construction & ship power distribution", "cross_family": false } ] }, { "qid": "KOC-2025-03-0570-Q003", "text": "zener barrier,voltage and current", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Zener / Diode / Rectifier", "tid": "KOC-2025-03-0570", "tray": "review", "candidates": [ { "answer_id": "EPC-P02-01", "score": 0.6878594756126404, "sibling_score": 0.6878594756126404, "answer_score": 0.5106364607810974, "sibling_qid": "CHE-2026-04-0368-Q014", "sibling_text": "what is zener diode working of zener diode what is barrier voltage how much how it is decided materiel what material", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a zener diode? Draw its symbol, explain its working principle, and draw and explain its characteristic curve including the zener (breakdown) voltage.", "cross_family": false }, { "answer_id": "EPC-P02-03", "score": 0.6805704236030579, "sibling_score": 0.6805704236030579, "answer_score": 0.4798824816942215, "sibling_qid": "MUM-2026-07-3813-Q002", "sibling_text": "zener barrier full explanation every component", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Where is a zener diode used on board and why — voltage regulator, AVR, clipper — and explain one application in detail.", "cross_family": false }, { "answer_id": "EPC-P02-02", "score": 0.455557706952095, "sibling_score": null, "answer_score": 0.455557706952095, "sibling_qid": "", "sibling_text": "how is a zener diode different from a normal pn crystal diode construction behaviour output and use doping heavy in the zener light in the normal diode thin versus wide depletion layer so low sharp breakdown versus high piv operating region zener works in reverse breakdown by design normal diode works forward breakdown avoided", "sibling_family": "", "via": "answer_title", "answer_title": "How is a zener diode different from a normal (PN / crystal) diode — construction, behaviour, output, and use?", "cross_family": false } ] }, { "qid": "KOC-2025-03-0570-Q007", "text": "draw motor terminal box star and delta how many terminals why 6 terminals", "family": "Electrical - Motors & Starters", "subtopic": "Star-Delta Starter", "tid": "KOC-2025-03-0570", "tray": "review", "candidates": [ { "answer_id": "SDST-A-001", "score": 0.7740404009819031, "sibling_score": 0.7740404009819031, "answer_score": 0.5253551483154296, "sibling_qid": "KOC-2024-01-1317-Q008", "sibling_text": "draw explain star delta starter why there is 6 cables in the junction box of a motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false }, { "answer_id": "IMSP-004", "score": 0.7519853711128235, "sibling_score": 0.7519853711128235, "answer_score": 0.5906843841075897, "sibling_qid": "MUM-2024-09-1462-Q010", "sibling_text": "star delta starter terminal box components", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Explain the star-delta starter, and what you find inside it when you open it — its components.", "cross_family": false }, { "answer_id": "CONT-317-003", "score": 0.7391387820243835, "sibling_score": 0.7391387820243835, "answer_score": null, "sibling_qid": "MUM-2026-01-1899-Q004", "sibling_text": "how many terminals are there in a motor how to connect them in start and delta", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Continuity to confirm terminal identity after overhaul or rewind", "cross_family": false } ] }, { "qid": "KOC-2025-03-0571-Q004", "text": "Latest ammendments in Container ships safety", "family": "SOLAS", "subtopic": "Ship-Type Construction (Bulk/Tanker/Container)", "tid": "KOC-2025-03-0571", "tray": "review", "candidates": [ { "answer_id": "CONT-FIRE-001", "score": 0.6948732137680054, "sibling_score": 0.6948732137680054, "answer_score": 0.5094993591308593, "sibling_qid": "CHE-2026-01-0101-Q005", "sibling_text": "latest amendment on fire safety for container ships some more", "sibling_family": "Cargo Ops - Containers", "via": "sibling", "answer_title": "What are the latest requirements, amendments and advancements for fire safety on container ships?", "cross_family": true }, { "answer_id": "SOLAS12-BC-A-002", "score": 0.6049551963806152, "sibling_score": 0.6049551963806152, "answer_score": 0.5050606906414031, "sibling_qid": "KOC-2025-12-0769-Q002", "sibling_text": "latest amendments in bulk carrier", "sibling_family": "", "via": "sibling", "answer_title": "Why Chapter XII was introduced; 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Annex I (Oil)", "subtopic": "Oil Discharge Criteria", "tid": "KOC-2025-03-0571", "tray": "review", "candidates": [ { "answer_id": "ODC-001", "score": 0.7852871417999268, "sibling_score": 0.7852871417999268, "answer_score": null, "sibling_qid": "KOL-2023-10-0780-Q004", "sibling_text": "discharge criteria as per annex 1", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "MARPOL Annex I oil discharge criteria — the overall framework", "cross_family": false }, { "answer_id": "CHEM-PA-005", "score": 0.7408705353736877, "sibling_score": 0.7408705353736877, "answer_score": null, "sibling_qid": "MUM-2026-03-2940-Q003", "sibling_text": "annex 2 discharge criteria", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Discharge criteria for NLS cargo residues, by category", "cross_family": false }, { "answer_id": "ODC-002", "score": 0.7331652045249939, "sibling_score": 0.7331652045249939, "answer_score": null, "sibling_qid": "MUM-2025-05-0268-Q003", "sibling_text": "annex 1 e r discharge criteria", "sibling_family": "MARPOL - 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Frequency?", "family": "MLC", "subtopic": "MLC / DMLC / Work-Rest", "tid": "KOC-2025-03-0571", "tray": "new", "candidates": [ { "answer_id": "SVY-SCOPE-003", "score": 0.4893563985824585, "sibling_score": 0.4893563985824585, "answer_score": null, "sibling_qid": "MUM-2023-01-2161-Q007", "sibling_text": "periodical survey and annual survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the difference between a periodical survey and an annual survey?", "cross_family": true }, { "answer_id": "ISM-SMC-B-003", "score": 0.48363736271858215, "sibling_score": 0.48363736271858215, "answer_score": 0.38611516654491423, "sibling_qid": "MUM-2026-07-3676-Q008", "sibling_text": "ism smc how many audits", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "SMC audit cycle — initial, intermediate, renewal, additional", "cross_family": true }, { "answer_id": "AUDIT-IE-004", "score": 0.4754033088684082, "sibling_score": 0.4754033088684082, "answer_score": null, "sibling_qid": "KOC-2025-02-0544-Q003", "sibling_text": "audits and surveys", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Difference between audit and survey", "cross_family": true } ] }, { "qid": "KOC-2025-03-0577-Q004", "text": "Type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2025-03-0577", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8366292119026184, "sibling_score": 0.8366292119026184, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8018827438354492, "sibling_score": 0.8018827438354492, "answer_score": 0.5473108768463134, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8003316521644592, "sibling_score": 0.8003316521644592, "answer_score": 0.5218650102615356, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "KOC-2025-03-0577-Q007", "text": "What is multiple load line", "family": "", "subtopic": "Load Line Convention", "tid": "KOC-2025-03-0577", "tray": "review", "candidates": [ { "answer_id": "LL-CONV-P06-002", "score": 0.7351369857788086, "sibling_score": 0.7351369857788086, "answer_score": 0.4272292137145996, "sibling_qid": "MUM-2026-05-3337-Q004", "sibling_text": "multiple load lines", "sibling_family": "Load Line Convention", "via": "sibling", "answer_title": "LLC-P06-02 - Types of load lines: standard, seasonal, timber, WNA and multiple load lines", "cross_family": false }, { "answer_id": "LL-CONV-P04-002", "score": 0.5706921815872192, "sibling_score": 0.5706921815872192, "answer_score": null, "sibling_qid": "MUM-2026-09-3890-Q005", "sibling_text": "multiple load line certificate", "sibling_family": "Load Line Convention", "via": "sibling", "answer_title": "Load Line Convention, certificates, assigning authority and detention risk", "cross_family": false }, { "answer_id": "LLC-SURV-P01-001", "score": 0.5597867965698242, "sibling_score": 0.5597867965698242, "answer_score": null, "sibling_qid": "MUM-2025-10-0508-Q003", "sibling_text": "load line as 2e", "sibling_family": "", "via": "sibling", "answer_title": "Load line survey preparation as Second Engineer: engine-room scope, machinery openings, tanks/vents, valves and overboard checks", "cross_family": false } ] }, { "qid": "KOC-2025-03-0578-Q001", "text": "Your background", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOC-2025-03-0578", "tray": "new", "candidates": [ { "answer_id": "HULL-PAINT-002", "score": 0.4069632291793823, "sibling_score": 0.4069632291793823, "answer_score": null, "sibling_qid": "MUM-2026-05-3342-Q006", "sibling_text": "paint scheme", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Types of hull coating, the paint scheme by section, and why each is used", "cross_family": true }, { "answer_id": "CRB-006", "score": 0.3923410177230835, "sibling_score": 0.3923410177230835, "answer_score": null, "sibling_qid": "MUM-2026-04-1319-Q007", "sibling_text": "why i shape", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Why is the connecting rod made I-section (or H-section)? Explain section modulus and Young's modulus.", "cross_family": true }, { "answer_id": "HULL-PAINT-001", "score": 0.39223307371139526, "sibling_score": 0.39223307371139526, "answer_score": null, "sibling_qid": "CHE-2026-08-3900-Q003", "sibling_text": "development in paint", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Preparing the hull surface before painting in dry dock — cleanliness standard and methods", "cross_family": true } ] }, { "qid": "KOC-2025-03-0578-Q002", "text": "Your written status and oral status, type of ship sailed", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2025-03-0578", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.7525684237480164, "sibling_score": 0.7525684237480164, "answer_score": null, "sibling_qid": "KOC-2026-08-2106-Q001", "sibling_text": "status of written oral company type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.6393727660179138, "sibling_score": 0.6393727660179138, "answer_score": null, "sibling_qid": "MUM-2026-05-3139-Q001", "sibling_text": "status of oral and written type of ship sailed container nomenclature of main and auxiliary engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.5972337126731873, "sibling_score": 0.5972337126731873, "answer_score": null, "sibling_qid": "MUM-2026-06-3459-Q001", "sibling_text": "type of ship sail and status of other function", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false } ] }, { "qid": "KOC-2025-03-0578-Q003", "text": "EORB X", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "KOC-2025-03-0578", "tray": "new", "candidates": [ { "answer_id": "OWS-ORB-006", "score": 0.4121536612510681, "sibling_score": 0.4121536612510681, "answer_score": null, "sibling_qid": "CHE-2026-05-0634-Q009", "sibling_text": "orb all codes", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "6. Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": false }, { "answer_id": "EECS-001", "score": 0.40127265453338623, "sibling_score": 0.40127265453338623, "answer_score": null, "sibling_qid": "CHE-2026-05-0554-Q002", "sibling_text": "eedi eexi x", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "01. Differentiate EEDI and EEXI — formula and units of each", "cross_family": true }, { "answer_id": "UPT-FIRE-003", "score": 0.39955177903175354, "sibling_score": 0.39955177903175354, "answer_score": null, "sibling_qid": "KOC-2024-12-1883-Q004", "sibling_text": "egb fire as 2e", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Fire in the exhaust gas boiler or economiser — actions and instructions to the duty engineers", "cross_family": true } ] }, { "qid": "KOC-2025-03-0579-Q004", "text": "MEPC 82", "family": "IMO Structure & Conventions", "subtopic": "Latest MEPC Outcomes / GHG Strategy", "tid": "KOC-2025-03-0579", "tray": "review", "candidates": [ { "answer_id": "AV6-P01-01", "score": 0.6582490801811218, "sibling_score": 0.6582490801811218, "answer_score": null, "sibling_qid": "KOC-2026-02-0824-Q003", "sibling_text": "mepc 83", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Explain the latest Annex VI amendment or MEPC development, and state its date and status.", "cross_family": false }, { "answer_id": "MEPC-GHG-004", "score": 0.5705082416534424, "sibling_score": 0.5705082416534424, "answer_score": 0.35868471711874006, "sibling_qid": "KOL-2024-05-0840-Q001", "sibling_text": "mepc 82 new regulations", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Explain MEPC 82 and its new regulations.", "cross_family": true }, { "answer_id": "MEPC-GHG-003", "score": 0.5671830177307129, "sibling_score": 0.5671830177307129, "answer_score": null, "sibling_qid": "KOC-2024-08-0382-Q003", "sibling_text": "mepc 80", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Explain MEPC 80 — when was it held and what was decided?", "cross_family": true } ] }, { "qid": "KOC-2025-03-0579-Q006", "text": "ORB code D explain. Internal – Ubaid sir", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "KOC-2025-03-0579", "tray": "new", "candidates": [ { "answer_id": "OWS-ORB-006", "score": 0.5100627541542053, "sibling_score": 0.5100627541542053, "answer_score": null, "sibling_qid": "CHE-2026-05-0634-Q009", "sibling_text": "orb all codes", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "6. Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-002", "score": 0.4888899326324463, "sibling_score": 0.4888899326324463, "answer_score": 0.24366676360368728, "sibling_qid": "CHE-2026-05-0543-Q003", "sibling_text": "orb in details", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "The Oil Record Book Part I — purpose, the letter codes, and how entries are made", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-003", "score": 0.4600641131401062, "sibling_score": 0.4600641131401062, "answer_score": 0.4113434314727783, "sibling_qid": "KOC-2026-03-2099-Q007", "sibling_text": "orb code d and explain internal difference in engine room and deck of crude bulk and container vessels helicopter equipments eta difference in forward and aft life raft", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "ORB Code D — what it is, and when you use it (Code D versus Code E)", "cross_family": false } ] }, { "qid": "KOC-2025-03-0579-Q009", "text": "Hydrostatic testing, what approval is required for the workshop. What is the requirement when hydrostatic testing. Who will attend- DG surveyor or RO?", "family": "Surveys - Statutory", "subtopic": "PSC / Flag / RO / CIC / MoU", "tid": "KOC-2025-03-0579", "tray": "new", "candidates": [ { "answer_id": "HYD-602-001", "score": 0.5654414892196655, "sibling_score": 0.5654414892196655, "answer_score": 0.412474225461483, "sibling_qid": "MUM-2026-03-0998-Q007", "sibling_text": "hydrostatic testing", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Explain the boiler hydraulic / hydrostatic pressure test in detail — the full procedure", "cross_family": true }, { "answer_id": "HYD-602-002", "score": 0.5497519969940186, "sibling_score": 0.5497519969940186, "answer_score": 0.43779112696647643, "sibling_qid": "MUM-2026-02-0731-Q007", "sibling_text": "why hydrostatic testing is carried out", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Why is the hydrostatic test carried out, when is it done, and what does it prove?", "cross_family": true }, { "answer_id": "AIRBTL-CORR-004", "score": 0.5464772582054138, "sibling_score": 0.5464772582054138, "answer_score": 0.4184672892093658, "sibling_qid": "KOC-2023-07-0925-Q004", "sibling_text": "air bottle survey checks cross will you go inside and when you will go for the hydrostatic pressure test will you test more than maw", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "AIRBTL-CORR-04 — Air bottle pressure and hydrostatic testing — when you test, how, and whether you exceed the working pressure", "cross_family": true } ] }, { "qid": "KOC-2025-03-0581-Q006", "text": "What is lodicator?", "family": "Stability & Loadicator", "subtopic": "Loadicator", "tid": "KOC-2025-03-0581", "tray": "new", "candidates": [ { "answer_id": "SOLAS12-BC-D-001", "score": 0.42764872312545776, "sibling_score": 0.42764872312545776, "answer_score": 0.25481561869382857, "sibling_qid": "KOL-2021-10-0563-Q004", "sibling_text": "purpose of loadicator all asked by rao sir", "sibling_family": "", "via": "sibling", "answer_title": "Loadicator — why a loading instrument is required, and the loading-restriction concern", "cross_family": false }, { "answer_id": "OWS-ORB-006", "score": 0.3915081024169922, "sibling_score": 0.3915081024169922, "answer_score": null, "sibling_qid": "MUM-2026-03-0808-Q002", "sibling_text": "orb entry for lo", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "6. Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": true }, { "answer_id": "LO-TEST-P01-001", "score": 0.3512171506881714, "sibling_score": 0.3512171506881714, "answer_score": null, "sibling_qid": "KOC-2026-05-0009-Q011", "sibling_text": "onboard lo tests explain", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Onboard lube-oil tests and the viscosity test", "cross_family": true } ] }, { "qid": "KOC-2025-03-0581-Q007", "text": "What all things. We will get from lodicator", "family": "Stability & Loadicator", "subtopic": "Loadicator", "tid": "KOC-2025-03-0581", "tray": "new", "candidates": [ { "answer_id": "LO-TEST-P01-003", "score": 0.45535826683044434, "sibling_score": 0.45535826683044434, "answer_score": null, "sibling_qid": "MUM-2022-08-2139-Q015", "sibling_text": "what all things you will find in lo analysis report", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Reading a shore analysis report: metals, FTIR and red flags", "cross_family": true }, { "answer_id": "AIRP-188-005", "score": 0.417352557182312, "sibling_score": 0.417352557182312, "answer_score": null, "sibling_qid": "KOC-2026-02-0835-Q007", "sibling_text": "ods log what all entries", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "ODS Record Book and the IAPP equipment list — what and where?", "cross_family": true }, { "answer_id": "SOLAS12-BC-D-001", "score": 0.4038746953010559, "sibling_score": 0.4038746953010559, "answer_score": null, "sibling_qid": "MUM-2026-06-3412-Q002", "sibling_text": "why load indicator is approved type what are the things you can monitor in load indicator", "sibling_family": "Stability & Loadicator", "via": "sibling", "answer_title": "Loadicator — why a loading instrument is required, and the loading-restriction concern", "cross_family": false } ] }, { "qid": "KOC-2025-03-0581-Q008", "text": "Voyage data recorder", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "KOC-2025-03-0581", "tray": "new", "candidates": [ { "answer_id": "DES-571-001", "score": 0.5811899304389954, "sibling_score": 0.5811899304389954, "answer_score": null, "sibling_qid": "KOC-2023-12-1312-Q015", "sibling_text": "type of speed log onboard and doppler effect", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "The Doppler log — measuring the ship's speed by the Doppler effect", "cross_family": false }, { "answer_id": "VOC-MGT-004", "score": 0.5589722394943237, "sibling_score": 0.5589722394943237, "answer_score": null, "sibling_qid": "KOC-2025-10-0670-Q016", "sibling_text": "voc records and plan", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "The VOC management plan - contents, records and documents", "cross_family": true }, { "answer_id": "ODC-014", "score": 0.5560042858123779, "sibling_score": 0.5560042858123779, "answer_score": 0.43819512128829957, "sibling_qid": "CHE-2025-11-0084-Q012", "sibling_text": "odme what data it will record", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "ODMCS — what it records, the log, and calibration", "cross_family": true } ] }, { "qid": "KOC-2025-03-0581-Q009", "text": "What all datas recorded in the vdr", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "KOC-2025-03-0581", "tray": "new", "candidates": [ { "answer_id": "ODC-014", "score": 0.5155388712882996, "sibling_score": 0.5155388712882996, "answer_score": 0.3175921767950058, "sibling_qid": "CHE-2025-11-0084-Q012", "sibling_text": "odme what data it will record", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "ODMCS — what it records, the log, and calibration", "cross_family": true }, { "answer_id": "VOC-MGT-004", "score": 0.5038405060768127, "sibling_score": 0.5038405060768127, "answer_score": null, "sibling_qid": "KOC-2025-10-0670-Q016", "sibling_text": "voc records and plan", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "The VOC management plan - contents, records and documents", "cross_family": true }, { "answer_id": "AIRP-188-005", "score": 0.47287845611572266, "sibling_score": 0.47287845611572266, "answer_score": null, "sibling_qid": "KOL-2025-09-1092-Q002", "sibling_text": "ods record book what all entries", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "ODS Record Book and the IAPP equipment list — what and where?", "cross_family": true } ] }, { "qid": "KOC-2025-03-0581-Q010", "text": "How to retrieve data from vdr,who all can retrieve vdr data?", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "KOC-2025-03-0581", "tray": "new", "candidates": [ { "answer_id": "BDN-001-001", "score": 0.39465492963790894, "sibling_score": 0.39465492963790894, "answer_score": null, "sibling_qid": "KOL-2025-01-0908-Q007", "sibling_text": "what data we can get in bdn", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "BDN: what it is and what it must contain", "cross_family": true }, { "answer_id": "SOLAS-OVW-007", "score": 0.3557133674621582, "sibling_score": 0.3557133674621582, "answer_score": 0.28907414972782136, "sibling_qid": "KOC-2021-07-0015-Q008", "sibling_text": "solas ch 5 vdr requirment", "sibling_family": "", "via": "sibling", "answer_title": "SOLAS Chapter V — VDR carriage requirement", "cross_family": false }, { "answer_id": "MRV-DCS-001", "score": 0.34633052349090576, "sibling_score": 0.34633052349090576, "answer_score": null, "sibling_qid": "MUM-2022-12-0076-Q001", "sibling_text": "mrv everything you know which area it applies what all information collected how different from dcs", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is the difference between EU MRV and IMO DCS?", "cross_family": true } ] }, { "qid": "KOC-2025-03-0581-Q011", "text": "Ism audits and their periodic intervals", "family": "ISM Code", "subtopic": "ISM / SMS / Audit", "tid": "KOC-2025-03-0581", "tray": "review", "candidates": [ { "answer_id": "ISM-AUDIT-P01-002", "score": 0.7242968678474426, "sibling_score": 0.7242968678474426, "answer_score": null, "sibling_qid": "CHE-2025-08-0038-Q003", "sibling_text": "ism audits certificates and intervals", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM/SMS audits and verifications — types, who conducts them, intervals and validity", "cross_family": false }, { "answer_id": "ISM-SMC-B-003", "score": 0.6328988671302795, "sibling_score": 0.6328988671302795, "answer_score": 0.5188642859458923, "sibling_qid": "MUM-2026-07-3676-Q008", "sibling_text": "ism smc how many audits", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "SMC audit cycle — initial, intermediate, renewal, additional", "cross_family": false }, { "answer_id": "ISM-SMC-B-006", "score": 0.605063796043396, "sibling_score": 0.605063796043396, "answer_score": 0.5037714451551437, "sibling_qid": "KOL-2026-02-1167-Q004", "sibling_text": "ism certificates who does audit and when 5", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM certificates and their audits — survey vs audit", "cross_family": false } ] }, { "qid": "KOC-2025-03-0581-Q012", "text": "U are a second engineer and your 3er reported you that he completed and checked all the enclosed space entry permit and everything satisfactory as a second engineer will you sign the permit?", "family": "Risk & Safety Management", "subtopic": "Enclosed Space Entry", "tid": "KOC-2025-03-0581", "tray": "review", "candidates": [ { "answer_id": "ESE-P01-003", "score": 0.7045928835868835, "sibling_score": 0.7045928835868835, "answer_score": 0.5533548831939697, "sibling_qid": "MUM-2022-12-0076-Q004", "sibling_text": "enclosed space entry precautions as a second engineer", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "General enclosed-space entry procedure as second engineer", "cross_family": false }, { "answer_id": "ESE-P02-008", "score": 0.6529169678688049, "sibling_score": 0.6529169678688049, "answer_score": null, "sibling_qid": "KOL-2024-05-0834-Q004", "sibling_text": "checks prior to entry into enclosed space", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "ESE-P02-08. Before, during and after: confirming a space is safe to enter", "cross_family": false }, { "answer_id": "DDHSC-004", "score": 0.6253674030303955, "sibling_score": 0.6253674030303955, "answer_score": null, "sibling_qid": "KOC-2025-10-2076-Q007", "sibling_text": "as second engineer all after docking checks", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "What checks are carried out after docking, and what are the first checks once the ship is out of dock?", "cross_family": true } ] }, { "qid": "KOC-2025-03-0581-Q015", "text": "Classification of maritime area as per unclos Internal What types of ship u sailed Length,breadth and draft of ur last ship Where all you can find imo number on ship? What is the requirement and dimensions of numbering? Under which code this requirement are given", "family": "Other Conventions", "subtopic": "UNCLOS", "tid": "KOC-2025-03-0581", "tray": "review", "candidates": [ { "answer_id": "SOLAS-OVW-011", "score": 0.7229584455490112, "sibling_score": 0.7229584455490112, "answer_score": 0.5514049291610718, "sibling_qid": "KOC-2026-02-0806-Q005", "sibling_text": "imo number location diamension", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "SOLAS Chapter XI-1 — special measures (safety): IMO number marking", "cross_family": true }, { "answer_id": "IGC-IGF-002", "score": 0.6812626719474792, "sibling_score": 0.6812626719474792, "answer_score": null, "sibling_qid": "KOL-2022-07-0657-Q001", "sibling_text": "type of ship sailed about igf code", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "IGF Code — scope, ships and fuels it applies to", "cross_family": false }, { "answer_id": "LL-CONV-P06-001", "score": 0.6733219623565674, "sibling_score": 0.6733219623565674, "answer_score": 0.5395858407020568, "sibling_qid": "MUM-2022-11-0065-Q002", "sibling_text": "categories of ship under loadline convention", "sibling_family": "", "via": "sibling", "answer_title": "LLC-P06-01 - Ship categories and freeboard differences: Type A, Type B and practical ship cases", "cross_family": false } ] }, { "qid": "KOC-2025-03-0583-Q004", "text": "DMLC and iits part? What are the securities in that? Explain owner liabilities", "family": "MLC", "subtopic": "MLC / DMLC / Work-Rest", "tid": "KOC-2025-03-0583", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.4158080220222473, "sibling_score": 0.4158080220222473, "answer_score": 0.2604911208152771, "sibling_qid": "KOC-2026-05-2135-Q011", "sibling_text": "mlc titles explain title 1 explain dmlc part 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "CLC-CIV-B-003", "score": 0.4006989002227783, "sibling_score": 0.4006989002227783, "answer_score": null, "sibling_qid": "MUM-2026-04-0880-Q004", "sibling_text": "mlc what is shipowner liability", "sibling_family": "MLC", "via": "sibling", "answer_title": "LLMC: purpose, scope and limitation of maritime claims", "cross_family": false }, { "answer_id": "MLC-WRH-B-006", "score": 0.3849683701992035, "sibling_score": 0.3849683701992035, "answer_score": null, "sibling_qid": "MUM-2026-06-3656-Q002", "sibling_text": "certificates under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false } ] }, { "qid": "KOC-2025-03-0583-Q010", "text": "Types of lifebuoy?and its weight? In ship which are the place they kept?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "LSA Code", "tid": "KOC-2025-03-0583", "tray": "review", "candidates": [ { "answer_id": "MOB-MKR-006", "score": 0.7428733706474304, "sibling_score": 0.7428733706474304, "answer_score": 0.5125987768173218, "sibling_qid": "KOL-2019-04-0280-Q002", "sibling_text": "types of lifebuoys speciality of mob lifebuoys all regulations weight etc", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What is the difference between the MOB lifebuoy and a normal lifebuoy, and what is special about it?", "cross_family": false }, { "answer_id": "LSA-LB-A-002", "score": 0.6927403211593628, "sibling_score": 0.6927403211593628, "answer_score": 0.5322062313556671, "sibling_qid": "KOC-2025-01-0519-Q011", "sibling_text": "types lifeboat onboard", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Types of lifeboat — and which type on your ship", "cross_family": false }, { "answer_id": "LRHR-A-003", "score": 0.6653842329978943, "sibling_score": 0.6653842329978943, "answer_score": 0.5081710517406464, "sibling_qid": "KOC-2025-01-0513-Q011", "sibling_text": "types of life raft in ship", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Types of liferaft carried on ships", "cross_family": false } ] }, { "qid": "KOC-2025-03-0584-Q002", "text": "Type of vessel sailed", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2025-03-0584", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8422918319702148, "sibling_score": 0.8422918319702148, "answer_score": null, "sibling_qid": "CHE-2026-02-0481-Q001", "sibling_text": "type of vessels sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8255380392074585, "sibling_score": 0.8255380392074585, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.8043184280395508, "sibling_score": 0.8043184280395508, "answer_score": null, "sibling_qid": "CHE-2026-03-0255-Q001", "sibling_text": "type of vessel and engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "KOC-2025-03-0931-Q010", "text": "■piston seizure on running engines", "family": "2-Stroke - Operations & Casualty", "subtopic": "Unit Hot / Overheating", "tid": "KOC-2025-03-0931", "tray": "review", "candidates": [ { "answer_id": "PIST-CSI-C-004", "score": 0.7375737428665161, "sibling_score": 0.7375737428665161, "answer_score": 0.6146134227514267, "sibling_qid": "KOL-2021-06-3409-Q001", "sibling_text": "piston seize", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston seizure, stuck piston and emergency running to port", "cross_family": true }, { "answer_id": "PST-CSI-BF-015", "score": 0.732437014579773, "sibling_score": 0.732437014579773, "answer_score": 0.5806502878665923, "sibling_qid": "KOC-2023-01-0143-Q006", "sibling_text": "piston seizure reasons", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Why a piston seizes or sticks in the liner, and what you do about it", "cross_family": true }, { "answer_id": "CAS-ESTOP-006", "score": 0.7311518788337708, "sibling_score": 0.7311518788337708, "answer_score": 0.5483428001403808, "sibling_qid": "KOL-2017-04-1288-Q007", "sibling_text": "piston siezed how to proceed", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Abnormal symptoms — knocking, piston seizure, sump water, hot starting-air line", "cross_family": false } ] }, { "qid": "KOC-2025-03-1031-Q013", "text": "FWG capacity reduced, reason", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "KOC-2025-03-1031", "tray": "review", "candidates": [ { "answer_id": "FWG-RO-003", "score": 0.6779481768608093, "sibling_score": 0.6779481768608093, "answer_score": 0.3724247545003891, "sibling_qid": "KOC-2026-02-1100-Q007", "sibling_text": "fwg production reduces reasons", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "The FWG is not producing enough water or its efficiency has dropped. Reasons, checks and action?", "cross_family": false }, { "answer_id": "AIRCOMP-PERF-003", "score": 0.5852518081665039, "sibling_score": 0.5852518081665039, "answer_score": 0.33281831443309784, "sibling_qid": "KOL-2021-01-3373-Q004", "sibling_text": "compressor capacity reduced drastically reason nd action", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Why does the main air compressor take more time to fill the air bottle, or why is its capacity reduced?", "cross_family": true }, { "answer_id": "CAP-CTRL-001", "score": 0.5817406177520752, "sibling_score": 0.5817406177520752, "answer_score": null, "sibling_qid": "KOC-2024-07-1850-Q015", "sibling_text": "how is capacity reduction in refer", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "CG-001 · Capacity control in an AC / refrigeration compressor — why and how", "cross_family": true } ] }, { "qid": "KOC-2025-03-1031-Q014", "text": "Vaaccum measurement", "family": "Heat Exchangers & Coolers", "subtopic": "Vacuum Distillation", "tid": "KOC-2025-03-1031", "tray": "new", "candidates": [ { "answer_id": "CBKR-H-001", "score": 0.564710795879364, "sibling_score": 0.564710795879364, "answer_score": null, "sibling_qid": "KOL-2018-06-2201-Q002", "sibling_text": "vacuum circuit breaker how much vacuum", "sibling_family": "", "via": "sibling", "answer_title": "How do VCB and SF6 breakers work in a high-voltage system, and why are they used instead of an ACB?", "cross_family": false }, { "answer_id": "VAC-COND-001", "score": 0.5402787923812866, "sibling_score": 0.5402787923812866, "answer_score": null, "sibling_qid": "MUM-2025-09-2396-Q005", "sibling_text": "why vaccum condition", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Purpose, working and thermodynamic principle of the vacuum condenser", "cross_family": true }, { "answer_id": "VAC-COND-004", "score": 0.5393880605697632, "sibling_score": 0.5393880605697632, "answer_score": null, "sibling_qid": "KOC-2024-12-1887-Q007", "sibling_text": "vaccum condenser pressure testing pressure", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Vacuum condenser tube replacement and pressure testing", "cross_family": true } ] }, { "qid": "KOC-2025-03-1031-Q015", "text": "U tube manometer ,what's unit", "family": "Gauges & Tools", "subtopic": "Manometer / U-Tube", "tid": "KOC-2025-03-1031", "tray": "new", "candidates": [ { "answer_id": "TPL-SENS-A-002", "score": 0.5801501870155334, "sibling_score": 0.5801501870155334, "answer_score": 0.41701191663742065, "sibling_qid": "MUM-2026-05-3165-Q005", "sibling_text": "how to calibrate pressure gauge", "sibling_family": "Gauges & Tools", "via": "sibling", "answer_title": "Pressure transmitter / transducer / switch working and calibration", "cross_family": false }, { "answer_id": "MAST-PVA-004", "score": 0.5407196879386902, "sibling_score": 0.5407196879386902, "answer_score": null, "sibling_qid": "KOC-2023-01-0144-Q006", "sibling_text": "convert the cargo tank pressure into to mm of water", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "P/V valve & P/V breaker — pressure/vacuum settings and the basis", "cross_family": true }, { "answer_id": "AIRBTL-CORR-004", "score": 0.538417637348175, "sibling_score": 0.538417637348175, "answer_score": null, "sibling_qid": "KOC-2024-01-1828-Q006", "sibling_text": "air bottle pressure test", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "AIRBTL-CORR-04 — Air bottle pressure and hydrostatic testing — when you test, how, and whether you exceed the working pressure", "cross_family": true } ] }, { "qid": "KOC-2025-03-1031-Q016", "text": "Boiler safety valve setting procedure", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2025-03-1031", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-001", "score": 0.8563545942306519, "sibling_score": 0.8563545942306519, "answer_score": null, "sibling_qid": "KOC-2026-05-0003-Q005", "sibling_text": "boiler safety valve setting procedure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.8238982558250427, "sibling_score": 0.8238982558250427, "answer_score": null, "sibling_qid": "MUM-2026-03-2935-Q013", "sibling_text": "boiler safety valve setting in presence of surveyor after survey", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.808039665222168, "sibling_score": 0.808039665222168, "answer_score": null, "sibling_qid": "KOC-2026-05-0034-Q010", "sibling_text": "boiler safety valve types and how safety valve is set complete procedures", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOC-2025-03-1031-Q019", "text": "Boiler safety vv setting pr", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2025-03-1031", "tray": "review", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-003", "score": 0.7943256497383118, "sibling_score": 0.7943256497383118, "answer_score": null, "sibling_qid": "KOL-2026-02-2040-Q006", "sibling_text": "boiler safety v v setting boiler accumulation pr test", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "The accumulation test and the safety valve — required lift, how lift and capacity are verified, and why accumulation must stay inside the limit", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.7400667071342468, "sibling_score": 0.7400667071342468, "answer_score": null, "sibling_qid": "KOC-2026-05-0003-Q005", "sibling_text": "boiler safety valve setting procedure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.7282894253730774, "sibling_score": 0.7282894253730774, "answer_score": null, "sibling_qid": "MUM-2026-03-2935-Q013", "sibling_text": "boiler safety valve setting in presence of surveyor after survey", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false } ] }, { "qid": "KOC-2025-03-1031-Q022", "text": "Boiler overboard vv, what type", "family": "General Marine Engineering", "subtopic": "Gate Valve", "tid": "KOC-2025-03-1031", "tray": "new", "candidates": [ { "answer_id": "SBD-003", "score": 0.5944842100143433, "sibling_score": 0.5944842100143433, "answer_score": 0.4417529463768005, "sibling_qid": "KOC-2022-04-0072-Q021", "sibling_text": "boiler blowdown overboard valve leaking what what would you do", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "How is the boiler blowdown valve fitted on the ship's side and how are the blowdown valves arranged? What is the blowdown pressure and its significance? 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Lubrication & Bearings", "subtopic": "LO Test / Analysis", "tid": "KOC-2025-04-1037", "tray": "review", "candidates": [ { "answer_id": "OIL-FUEL-TEST-001", "score": 0.7904379963874817, "sibling_score": 0.7904379963874817, "answer_score": 0.5905176490545273, "sibling_qid": "MUM-2026-06-3536-Q005", "sibling_text": "lub oil tests onboard", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What lube-oil tests are carried out onboard ship?", "cross_family": false }, { "answer_id": "LO-TEST-P01-001", "score": 0.7449554800987244, "sibling_score": 0.7449554800987244, "answer_score": 0.5431558758020401, "sibling_qid": "CHE-2026-05-0556-Q001", "sibling_text": "1 lub oil test onboard why taking while running", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Onboard lube-oil tests and the viscosity test", "cross_family": false }, { "answer_id": "LO-TEST-P01-003", "score": 0.7424726486206055, "sibling_score": 0.7424726486206055, "answer_score": null, "sibling_qid": "MUM-2026-09-3915-Q008", "sibling_text": "testing carried out on lube oil of ae", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Reading a shore analysis report: metals, FTIR and red flags", "cross_family": false } ] }, { "qid": "KOC-2025-04-1037-Q024", "text": "■what all works u have done on last ship", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOC-2025-04-1037", "tray": "new", "candidates": [ { "answer_id": "DCB-OVH-002", "score": 0.5714612603187561, "sibling_score": 0.5714612603187561, "answer_score": null, "sibling_qid": "MUM-2026-04-2961-Q005", "sibling_text": "what major overhaul done in ship", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "Preparing for a complete unit overhaul or unit survey", "cross_family": false }, { "answer_id": "SB-PRG-B-001", "score": 0.5371600389480591, "sibling_score": 0.5371600389480591, "answer_score": null, "sibling_qid": "MUM-2025-05-2295-Q015", "sibling_text": "major overhaul done on ship planned a lot this week to tell something easy bt it never works and told him honestly of main engine liner piston stuffing box etc cross questions on overhaul", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "In-situ stuffing box overhaul (piston in the engine)", "cross_family": true }, { "answer_id": "EXHV-P01-001", "score": 0.5230401754379272, "sibling_score": 0.5230401754379272, "answer_score": null, "sibling_qid": "MUM-2026-02-1280-Q001", "sibling_text": "type of ship done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": true } ] }, { "qid": "KOC-2025-04-1521-Q001", "text": "what kind of ship you have sailed on", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2025-04-1521", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.7396263480186462, "sibling_score": 0.7396263480186462, "answer_score": null, "sibling_qid": "MUM-2026-09-3942-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7387310862541199, "sibling_score": 0.7387310862541199, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "COT-01", "score": 0.7162291407585144, "sibling_score": 0.7162291407585144, "answer_score": null, "sibling_qid": "KOC-2026-04-0892-Q003", "sibling_text": "type of ship sailed tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Oil-tanker types, definitions and cargo capability", "cross_family": false } ] }, { "qid": "KOC-2025-04-1524-Q010", "text": "How to change paint room light", "family": "Electrical - Distribution & MSB", "subtopic": "Lighting / Lamps", "tid": "KOC-2025-04-1524", "tray": "new", "candidates": [ { "answer_id": "XFMR-A-001", "score": 0.5190901756286621, "sibling_score": 0.5190901756286621, "answer_score": null, "sibling_qid": "KOC-2026-04-1751-Q004", "sibling_text": "how to change over lighting transformer", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Lighting transformer — application and changeover", "cross_family": true }, { "answer_id": "EXD-EXI-A-002", "score": 0.5058228969573975, "sibling_score": 0.5058228969573975, "answer_score": null, "sibling_qid": "KOC-2023-03-0154-Q010", "sibling_text": "pump room lighting", "sibling_family": "", "via": "sibling", "answer_title": "Ex d (flameproof / explosion-proof) — construction, shipboard applications and maintenance", "cross_family": false }, { "answer_id": "PR-SAFE-A-004", "score": 0.47567829489707947, "sibling_score": 0.47567829489707947, "answer_score": null, "sibling_qid": "MUM-2023-01-1377-Q001", "sibling_text": "what type of fittings in pump room lighting", "sibling_family": "Cargo Ops - 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He asked where is the sequential start.?", "family": "Electrical - Motors & Starters", "subtopic": "Starter Panel / Control Circuit", "tid": "KOC-2025-04-1526", "tray": "review", "candidates": [ { "answer_id": "PTRIP-BO-003", "score": 0.6663968563079834, "sibling_score": 0.6663968563079834, "answer_score": 0.4313328415155411, "sibling_qid": "MUM-2026-05-3140-Q004", "sibling_text": "sequential start", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Sequential starting after a blackout — what starts first, and why?", "cross_family": false }, { "answer_id": "PPS-622-001", "score": 0.587827205657959, "sibling_score": 0.587827205657959, "answer_score": null, "sibling_qid": "KOL-2018-10-1428-Q006", "sibling_text": "sequence of events while starting ballast pump", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Why is priming needed in a centrifugal pump, when is a priming device required, why does a gear pump not need one, and how do you start a centrifugal pump?", "cross_family": true }, { "answer_id": "STARTER-DEC-B-001", "score": 0.5808274149894714, "sibling_score": 0.5808274149894714, "answer_score": null, "sibling_qid": "KOC-2025-02-1495-Q008", "sibling_text": "sw pump which starter is used and on what basis motor starters are decided on", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Selecting the right starter for a motor", "cross_family": false } ] }, { "qid": "KOC-2025-04-1909-Q001", "text": "Cross overhaul with piston in place", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Crosshead Bearing", "tid": "KOC-2025-04-1909", "tray": "review", "candidates": [ { "answer_id": "XHD-BRG-C-002", "score": 0.7400538325309753, "sibling_score": 0.7400538325309753, "answer_score": null, "sibling_qid": "KOC-2023-12-1822-Q004", "sibling_text": "crosshead overhaul piston mounted", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "B. Crosshead bearing overhaul and removal: exact steps, tackle, withdrawing the pin", "cross_family": false }, { "answer_id": "XHD-BRG-C-001", "score": 0.7379511594772339, "sibling_score": 0.7379511594772339, "answer_score": 0.4515134572982788, "sibling_qid": "KOC-2026-08-2122-Q001", "sibling_text": "crosshead bearing overhaul piston in place", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "A. Present the crosshead bottom shell for survey, piston in place", "cross_family": false }, { "answer_id": "XHEAD-303-007", "score": 0.6891276240348816, "sibling_score": 0.6891276240348816, "answer_score": null, "sibling_qid": "KOC-2025-01-1026-Q008", "sibling_text": "x head overhaul with piston in place", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead inspection, survey and overhaul, including in-place overhaul", "cross_family": false } ] }, { "qid": "KOC-2025-04-1909-Q002", "text": "Safety valve setting of boiler in front of surveyor. Draw only top part", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2025-04-1909", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P01-001", "score": 0.8450804352760315, "sibling_score": 0.8450804352760315, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q011", "sibling_text": "boiler safety valve setting in front of surveyor", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.7408362030982971, "sibling_score": 0.7408362030982971, "answer_score": null, "sibling_qid": "CHE-2026-05-0597-Q020", "sibling_text": "boiler safety valve how the setting is done", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.7191469073295593, "sibling_score": 0.7191469073295593, "answer_score": null, "sibling_qid": "KOL-2021-08-1614-Q006", "sibling_text": "boiler survey interval types of safety valves improved high lift safety valve in detail", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOC-2025-04-1909-Q008", "text": "What actions taken if generator cylinder head found leaking ?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE Valve Seat", "tid": "KOC-2025-04-1909", "tray": "new", "candidates": [ { "answer_id": "LO-CLR-006", "score": 0.6022520661354065, "sibling_score": 0.6022520661354065, "answer_score": 0.5063903659582137, "sibling_qid": "KOC-2025-04-1911-Q015", "sibling_text": "ae lube oil cooler is leaking you can t stop the generator what will you do", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "An AE LO cooler is leaking and you can't stop the generator — what do you do?", "cross_family": true }, { "answer_id": "CCH-590-003", "score": 0.5974631905555725, "sibling_score": 0.5974631905555725, "answer_score": 0.49976873993873594, "sibling_qid": "MUM-2026-06-3566-Q006", "sibling_text": "cylinder head cracked what to do actions", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "A cylinder head or its cooling jacket is cracked. What is the first indication, what is your action, and how do you make port?", "cross_family": true }, { "answer_id": "CCH-590-002", "score": 0.5877682566642761, "sibling_score": 0.5877682566642761, "answer_score": 0.46798856258392335, "sibling_qid": "CHE-2025-11-0221-Q003", "sibling_text": "leak from cylinder head how to pressure test and rectify", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "How do you pressure test a cylinder head, and how do you find and rectify a leak from it?", "cross_family": true } ] }, { "qid": "KOC-2025-04-1910-Q007", "text": "Explain how spindle and valve disc is connected in a globe valve ( didnt agree the thread/ weld type) Int:", "family": "General Marine Engineering", "subtopic": "Gate Valve", "tid": "KOC-2025-04-1910", "tray": "new", "candidates": [ { "answer_id": "GV-330-001", "score": 0.5759198069572449, "sibling_score": 0.5759198069572449, "answer_score": null, "sibling_qid": "KOC-2026-08-2117-Q004", "sibling_text": "globe valve or gate valve draw anyone", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Draw and explain the gate valve — construction, main parts, operation & onboard use", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.5702224373817444, "sibling_score": 0.5702224373817444, "answer_score": null, "sibling_qid": "KOL-2025-07-1814-Q004", "sibling_text": "how spindle is fitted in exhaust valve", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": true }, { "answer_id": "GV-330-002", "score": 0.5679517388343811, "sibling_score": 0.5679517388343811, "answer_score": null, "sibling_qid": "KOL-2026-03-3935-Q002", "sibling_text": "overhauling of globe valve", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Gate valve overhaul, checks & the stuck / not-operating valve", "cross_family": false } ] }, { "qid": "KOC-2025-04-1910-Q008", "text": "Where are the grub screws used onboard", "family": "Workshop & Welding", "subtopic": "Plate Welding 10/16mm", "tid": "KOC-2025-04-1910", "tray": "new", "candidates": [ { "answer_id": "BBR-005", "score": 0.5200692415237427, "sibling_score": 0.5200692415237427, "answer_score": 0.3575242847204208, "sibling_qid": "KOC-2024-11-1016-Q004", "sibling_text": "pinching screws", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "What are pinching (jacking) screws and how are they used in workshop removal/holding work?", "cross_family": false }, { "answer_id": "FB-COUP-001", "score": 0.46841442584991455, "sibling_score": 0.46841442584991455, "answer_score": 0.3174291655421257, "sibling_qid": "KOC-2026-09-2175-Q005", "sibling_text": "fitted bolts where", "sibling_family": "2-Stroke - 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Operations & Casualty", "via": "sibling", "answer_title": "Hydraulic jack — construction, components, sealing and basic working", "cross_family": true }, { "answer_id": "HYD-JACK-005", "score": 0.7398967146873474, "sibling_score": 0.7398967146873474, "answer_score": null, "sibling_qid": "KOC-2021-05-0938-Q011", "sibling_text": "hydraulic jack drawing and why we need to open half turn before using", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Purging air from a hydraulic jack or tool line before use", "cross_family": true }, { "answer_id": "PRE-TEN-003", "score": 0.7159157395362854, "sibling_score": 0.7159157395362854, "answer_score": 0.5615391373634339, "sibling_qid": "CHE-2026-05-0591-Q016", "sibling_text": "hydraulic jack how it is working", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "How a hydraulic jack works for hydraulic tightening or loosening", "cross_family": true } ] }, { "qid": "KOC-2025-04-1911-Q004", "text": "Why is the nut opening half turn?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Holding Down Bolts", "tid": "KOC-2025-04-1911", "tray": "new", "candidates": [ { "answer_id": "HYD-JACK-002", "score": 0.45977699756622314, "sibling_score": 0.45977699756622314, "answer_score": null, "sibling_qid": "KOC-2026-02-1998-Q014", "sibling_text": "when u open cylinder head nut hydraulic jack pressed upto opening pressure but nut not opening reasons", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Hydraulic jack leaks, seizes, will not reach pressure, or nut will not loosen", "cross_family": true }, { "answer_id": "PRE-TEN-006", "score": 0.43550780415534973, "sibling_score": 0.43550780415534973, "answer_score": 0.341197270154953, "sibling_qid": "CHE-2026-02-0484-Q005", "sibling_text": "ae cylinder head nut not opening in desired pressure how much will u increase even though increasing pressure what will you do", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Cylinder-head nut will not open at the specified hydraulic pressure", "cross_family": false }, { "answer_id": "HYD-JACK-005", "score": 0.43452030420303345, "sibling_score": 0.43452030420303345, "answer_score": null, "sibling_qid": "KOC-2021-05-0938-Q011", "sibling_text": "hydraulic jack drawing and why we need to open half turn before using", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Purging air from a hydraulic jack or tool line before use", "cross_family": true } ] }, { "qid": "KOC-2025-04-1911-Q006", "text": "Cast iron welding?", "family": "Workshop & Welding", "subtopic": "Cast Iron Welding", "tid": "KOC-2025-04-1911", "tray": "review", "candidates": [ { "answer_id": "WELD-B-001", "score": 0.8304451107978821, "sibling_score": 0.8304451107978821, "answer_score": 0.5479654550552367, "sibling_qid": "MUM-2026-05-3211-Q005", "sibling_text": "cast iron welding", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding & crack-repair of aluminium and cast iron, including metal stitching", "cross_family": false }, { "answer_id": "LH-ELEC-006", "score": 0.5094591826200485, "sibling_score": null, "answer_score": 0.5094591826200485, "sibling_qid": "", "sibling_text": "6 how would you approach a cast iron valve repair when the examiner probes welding and low hydrogen electrodes first response replace or fit a sound same size valve a welded cast iron repair is a stop gap not equal to new if welding cast iron not a plain mild steel low hydrogen rod the high carbon makes a hard brittle cracking weld", "sibling_family": "", "via": "answer_title", "answer_title": "6. How would you approach a cast-iron valve repair when the examiner probes welding and low-hydrogen electrodes?", "cross_family": false }, { "answer_id": "METAL-LOCK-001", "score": 0.49371338486671446, "sibling_score": null, "answer_score": 0.49371338486671446, "sibling_qid": "", "sibling_text": "what is metal locking stitching why use it materials benefits cold process zero heat applied at any stage for brittle cast iron and other castings where welding risks further cracking or a brittle heat affected zone", "sibling_family": "", "via": "answer_title", "answer_title": "What is metal locking / stitching, why use it, materials & benefits", "cross_family": false } ] }, { "qid": "KOC-2025-04-1911-Q007", "text": "Which anod is used for cast iron welding?why?", "family": "Workshop & Welding", "subtopic": "Cast Iron Welding", "tid": "KOC-2025-04-1911", "tray": "review", "candidates": [ { "answer_id": "WELD-B-001", "score": 0.6763663291931152, "sibling_score": 0.6763663291931152, "answer_score": 0.4842567056417465, "sibling_qid": "MUM-2026-06-3641-Q001", "sibling_text": "cast iron welding which electrode", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding & crack-repair of aluminium and cast iron, including metal stitching", "cross_family": false }, { "answer_id": "LH-ELEC-003", "score": 0.4344663560390472, "sibling_score": null, "answer_score": 0.4344663560390472, "sibling_qid": "", "sibling_text": "3 how do you select or order the correct welding electrode or rod match to base material and strength first mild steel high tensile stainless cast iron this fixes the electrode family then coating type for the duty rutile e g e6013 general basic low hydrogen e7018 crack sensitive or high tensile", "sibling_family": "", "via": "answer_title", "answer_title": "3. How do you select or order the correct welding electrode or rod?", "cross_family": false }, { "answer_id": "METAL-LOCK-001", "score": 0.43169787526130676, "sibling_score": null, "answer_score": 0.43169787526130676, "sibling_qid": "", "sibling_text": "what is metal locking stitching why use it materials benefits cold process zero heat applied at any stage for brittle cast iron and other castings where welding risks further cracking or a brittle heat affected zone", "sibling_family": "", "via": "answer_title", "answer_title": "What is metal locking / stitching, why use it, materials & benefits", "cross_family": false } ] }, { "qid": "KOC-2025-04-1911-Q009", "text": "Lpg cargo compressor overhauling?", "family": "Cargo Ops - Gas Carriers", "subtopic": "Cargo Compressor", "tid": "KOC-2025-04-1911", "tray": "new", "candidates": [ { "answer_id": "UNL-330-003", "score": 0.635191798210144, "sibling_score": 0.635191798210144, "answer_score": 0.48632516264915465, "sibling_qid": "KOC-2023-10-0984-Q005", "sibling_text": "checks on compressor unloader during overhaul", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "What checks are carried out on the compressor unloader during overhaul?", "cross_family": true }, { "answer_id": "CPFE-583-001", "score": 0.6301088929176331, "sibling_score": 0.6301088929176331, "answer_score": null, "sibling_qid": "MUM-2026-01-0682-Q004", "sibling_text": "type of cargo compressor", "sibling_family": "Cargo Ops - 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Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-002", "score": 0.4496213495731354, "sibling_score": 0.4496213495731354, "answer_score": null, "sibling_qid": "CHE-2026-05-0543-Q003", "sibling_text": "orb in details", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "The Oil Record Book Part I — purpose, the letter codes, and how entries are made", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-004", "score": 0.4319070875644684, "sibling_score": 0.4319070875644684, "answer_score": null, "sibling_qid": "KOC-2026-04-0906-Q013", "sibling_text": "orb weekly entry code and number", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Weekly ORB entries — the mandatory sludge retention record, the bunker entry, and what is voluntary", "cross_family": false } ] }, { "qid": "KOC-2025-05-0591-Q003", "text": "How will you enter evaporation in Orb and which code", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "KOC-2025-05-0591", "tray": "new", "candidates": [ { "answer_id": "OWS-ORB-006", "score": 0.4629628658294678, "sibling_score": 0.4629628658294678, "answer_score": null, "sibling_qid": "KOL-2026-03-1212-Q011", "sibling_text": "orb codes and entries", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "6. 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drills and life-saving appliances", "cross_family": true }, { "answer_id": "ESE-P02-005", "score": 0.5574895739555359, "sibling_score": 0.5574895739555359, "answer_score": null, "sibling_qid": "KOC-2025-07-1922-Q003", "sibling_text": "minimum requirement of enclosed space entry drill", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "ESE-P02-05. Latest enclosed-space requirements, amendments and the drill", "cross_family": true } ] }, { "qid": "KOC-2025-05-0597-Q004", "text": "How will you prepare settling tank for survey", "family": "Fuel Oil System", "subtopic": "Settling Tank Survey / Tank Preparation", "tid": "KOC-2025-05-0597", "tray": "new", "candidates": [ { "answer_id": "FO-SVCSET-001", "score": 0.567585289478302, "sibling_score": 0.567585289478302, "answer_score": null, "sibling_qid": "KOL-2021-11-3476-Q004", "sibling_text": "settling tank function", "sibling_family": "Fuel Oil System", "via": "sibling", "answer_title": "What is the function of a fuel oil settling tank?", "cross_family": false }, { "answer_id": "ESE-P01-004", "score": 0.5445868968963623, "sibling_score": 0.5445868968963623, "answer_score": null, "sibling_qid": "MUM-2026-04-0915-Q001S3", "sibling_text": "entry into settling tank what gas check", "sibling_family": "", "via": "sibling", "answer_title": "Fuel-oil, settling, bunker or double-bottom tank entry and inspection", "cross_family": false }, { "answer_id": "BTKS-573-001", "score": 0.5415500402450562, "sibling_score": 0.5415500402450562, "answer_score": 0.4298528969287872, "sibling_qid": "MUM-2025-04-0243-Q003", "sibling_text": "hfo bunter tank survey preparations", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "How will you prepare a fuel-oil / bunker tank for survey, inspection or hot work?", "cross_family": true } ] }, { "qid": "KOC-2025-05-0598-Q003", "text": "■what all you will check as a second engineer when workshop people comes to do maintenance of lifeboat davit", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Davit / Release Gear", "tid": "KOC-2025-05-0598", "tray": "review", "candidates": [ { "answer_id": "DRG-B-004", "score": 0.7878040075302124, "sibling_score": 0.7878040075302124, "answer_score": null, "sibling_qid": "KOL-2018-08-0213-Q004", "sibling_text": "maintenance on lifeboat davit testing of brakes checks as 2 e", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Brake testing — static, dynamic, and what you actually do onboard", "cross_family": false }, { "answer_id": "LBT-TEST-B-005", "score": 0.7718843817710876, "sibling_score": 0.7718843817710876, "answer_score": null, "sibling_qid": "KOC-2025-12-0740-Q005", "sibling_text": "checks on lifeboat davit after dynamic test is carried out", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Checks after the dynamic/overload load test", "cross_family": false }, { "answer_id": "DRG-B-013", "score": 0.7624261975288391, "sibling_score": 0.7624261975288391, "answer_score": null, "sibling_qid": "KOC-2024-02-1327-Q010", "sibling_text": "what all maintenance done on lifeboat davit", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "The test and examination regime — and what PSC looks at", "cross_family": false } ] }, { "qid": "KOC-2025-05-0598-Q004", "text": "■can any person do the maintenance or any specific requirements and how will you check as a 2/E", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Davit / Release Gear", "tid": "KOC-2025-05-0598", "tray": "new", "candidates": [ { "answer_id": "DRG-B-004", "score": 0.5347759127616882, "sibling_score": 0.5347759127616882, "answer_score": null, "sibling_qid": "KOL-2018-08-0213-Q004", "sibling_text": "maintenance on lifeboat davit testing of brakes checks as 2 e", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Brake testing — static, dynamic, and what you actually do onboard", "cross_family": false }, { "answer_id": "DRG-B-011", "score": 0.5329887270927429, "sibling_score": 0.5329887270927429, "answer_score": null, "sibling_qid": "KOL-2019-02-0263-Q004", "sibling_text": "lifeboat lowering mechanism checks and maintenance as 2e", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lowering mechanism — inspection and checks as 2/E", "cross_family": false }, { "answer_id": "CO2-SYS-002", "score": 0.5327086448669434, "sibling_score": 0.5327086448669434, "answer_score": null, "sibling_qid": "KOC-2025-01-0506-Q009", "sibling_text": "co2 10 yearly maintenance as 2 e what is your duties", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 maintenance, inspection, testing and survey routines", "cross_family": true } ] }, { "qid": "KOC-2025-05-0599-Q004", "text": "what all ships sailed,*", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2025-05-0599", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.7198625802993774, "sibling_score": 0.7198625802993774, "answer_score": null, "sibling_qid": "MUM-2026-04-1320-Q002", "sibling_text": "ship sailed on", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.6037221550941467, "sibling_score": 0.6037221550941467, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "INCL-EXP-B-002", "score": 0.3513821423053741, "sibling_score": null, "answer_score": 0.3513821423053741, "sibling_qid": "", "sibling_text": "b2 when and for which ships the experiment is carried out completion baseline every passenger ship regardless of size every cargo ship of length l 24 m and upwards the completion result determines lightship displacement and the longitudinal transverse and vertical position of the centre of gravity", "sibling_family": "", "via": "answer_title", "answer_title": "B2. When and for which ships the experiment is carried out", "cross_family": false } ] }, { "qid": "KOC-2025-05-0599-Q005", "text": "type of main engine*", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOC-2025-05-0599", "tray": "review", "candidates": [ { "answer_id": "ENG-NOM-005", "score": 0.7821452617645264, "sibling_score": 0.7821452617645264, "answer_score": null, "sibling_qid": "MUM-2026-09-3880-Q001", "sibling_text": "main engine type", "sibling_family": "2-Stroke - Operations & General", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true }, { "answer_id": "CTRL-TL-002", "score": 0.7690697312355042, "sibling_score": 0.7690697312355042, "answer_score": null, "sibling_qid": "MUM-2026-03-1987-Q001", "sibling_text": "type of main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Function of a controller, and types used on board", "cross_family": false }, { "answer_id": "ETP-344-P03-001", "score": 0.7285094261169434, "sibling_score": 0.7285094261169434, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false } ] }, { "qid": "KOC-2025-05-0599-Q007", "text": "Explain steps you will take according to SMS for reporting a hull damage to your ship", "family": "ISM Code", "subtopic": "Root Cause / Incident Reporting", "tid": "KOC-2025-05-0599", "tray": "review", "candidates": [ { "answer_id": "ISM-AUD-P03-003", "score": 0.7361701726913452, "sibling_score": 0.7361701726913452, "answer_score": null, "sibling_qid": "KOC-2025-10-2075-Q006", "sibling_text": "hull damage has taken place how will you report to your company following sms one more question which i never heard", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Non-conformity, major non-conformity and incident reporting under SMS", "cross_family": false }, { "answer_id": "HULL-DD-006", "score": 0.6412681341171265, "sibling_score": 0.6412681341171265, "answer_score": 0.6025067150592803, "sibling_qid": "CHE-2025-07-0404-Q003", "sibling_text": "dent on your ship how to report to office", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "7. Hull damage / collision / dent reporting and shell-plating designation", "cross_family": true }, { "answer_id": "HULL-DD-003", "score": 0.6238785982131958, "sibling_score": 0.6238785982131958, "answer_score": 0.4915948212146759, "sibling_qid": "KOC-2021-05-1755-Q011", "sibling_text": "hull breach and what actions taken to report to company", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "3. Side-shell hole or hull breach at the waterline: emergency action and repair", "cross_family": true } ] }, { "qid": "KOC-2025-05-0600-Q002", "text": "Official log book and what are the entries", "family": "Shipboard Records", "subtopic": "Official Log Book", "tid": "KOC-2025-05-0600", "tray": "new", "candidates": [ { "answer_id": "AIRP-188-005", "score": 0.5920543670654297, "sibling_score": 0.5920543670654297, "answer_score": null, "sibling_qid": "KOC-2026-02-0835-Q007", "sibling_text": "ods log what all entries", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "ODS Record Book and the IAPP equipment list — what and where?", "cross_family": true }, { "answer_id": "ELEC-SURV-003", "score": 0.5191157460212708, "sibling_score": 0.5191157460212708, "answer_score": null, "sibling_qid": "MUM-2022-09-1355-Q010", "sibling_text": "what all things you write on log book reagardnig electrical", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Documents, certificates & trend records", "cross_family": true }, { "answer_id": "ORB-IOPP-OWS-002", "score": 0.4984675645828247, "sibling_score": 0.4984675645828247, "answer_score": 0.3981749594211578, "sibling_qid": "MUM-2026-09-3916-Q006", "sibling_text": "oil record book entries and when they are to be done", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "The Oil Record Book Part I — purpose, the letter codes, and how entries are made", "cross_family": true } ] }, { "qid": "KOC-2025-05-0600-Q003", "text": "Types of rudders and draw semi balanced rudder&explain", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOC-2025-05-0600", "tray": "new", "candidates": [ { "answer_id": "SPR-STERN-004", "score": 0.6379262208938599, "sibling_score": 0.6379262208938599, "answer_score": null, "sibling_qid": "MUM-2026-04-0894-Q003", "sibling_text": "what type of rudder i said semi balanced double plated rudder angle of attack stall angle", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Propeller rake & skew", "cross_family": true }, { "answer_id": "SPR-STERN-006", "score": 0.6225048303604126, "sibling_score": 0.6225048303604126, "answer_score": null, "sibling_qid": "MUM-2026-09-3951-Q002", "sibling_text": "types of rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Propeller types & special propulsors", "cross_family": false }, { "answer_id": "TRS-002", "score": 0.5890666842460632, "sibling_score": 0.5890666842460632, "answer_score": 0.44422149658203125, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false } ] }, { "qid": "KOC-2025-05-1038-Q002", "text": "Type of Vessel and Type of Engine", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "KOC-2025-05-1038", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8279794454574585, "sibling_score": 0.8279794454574585, "answer_score": null, "sibling_qid": "CHE-2026-03-0255-Q001", "sibling_text": "type of vessel and engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.7991359829902649, "sibling_score": 0.7991359829902649, "answer_score": null, "sibling_qid": "MUM-2026-07-3668-Q004", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.75700443983078, "sibling_score": 0.75700443983078, "answer_score": null, "sibling_qid": "KOL-2025-12-2031-Q002", "sibling_text": "type of ship and engine sailed engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "KOC-2025-05-1528-Q003", "text": "DOL starter power and control circuit", "family": "Electrical - Motors & Starters", "subtopic": "Starter Panel / Control Circuit", "tid": "KOC-2025-05-1528", "tray": "review", "candidates": [ { "answer_id": "STR-DEC-A-001", "score": 0.742134153842926, "sibling_score": 0.742134153842926, "answer_score": 0.5016135156154632, "sibling_qid": "KOC-2024-11-1430-Q001", "sibling_text": "dol starter diagram current value", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "STARTER-DEC-B-002", "score": 0.7017976641654968, "sibling_score": 0.7017976641654968, "answer_score": null, "sibling_qid": "KOC-2024-11-1425-Q001", "sibling_text": "dol starting current how much", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Why a starter is needed & reducing starting current", "cross_family": false }, { "answer_id": "SDST-A-001", "score": 0.7005869150161743, "sibling_score": 0.7005869150161743, "answer_score": null, "sibling_qid": "KOC-2024-08-1375-Q002", "sibling_text": "star delta starter draw power and control circuits", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false } ] }, { "qid": "KOC-2025-05-1528-Q005", "text": "■what is Shot circuit and shot circuit level ?", "family": "", "subtopic": "High Voltage System", "tid": "KOC-2025-05-1528", "tray": "new", "candidates": [ { "answer_id": "TC-A-009", "score": 0.34828153252601624, "sibling_score": 0.34828153252601624, "answer_score": null, "sibling_qid": "KOL-2019-07-2312-Q001", "sibling_text": "exact definition of lc circuit uses on board", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "The LC circuit, resonance and the oscillator", "cross_family": false }, { "answer_id": "EXD-EXI-A-002", "score": 0.34699714183807373, "sibling_score": 0.34699714183807373, "answer_score": null, "sibling_qid": "MUM-2022-07-1337-Q001", "sibling_text": "exi exd circuit and in detail", "sibling_family": "", "via": "sibling", "answer_title": "Ex d (flameproof / explosion-proof) — construction, shipboard applications and maintenance", "cross_family": false }, { "answer_id": "IOCT-565-001", "score": 0.3461035192012787, "sibling_score": 0.3461035192012787, "answer_score": null, "sibling_qid": "MUM-2026-05-3167-Q003", "sibling_text": "define open circuit and short circuit", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "How do you check open-circuit and short-circuit faults in a marine electrical circuit?", "cross_family": false } ] }, { "qid": "KOC-2025-05-1531-Q004", "text": "Why 6 terminals are there in the junction box", "family": "Electrical - Motors & Starters", "subtopic": "Star-Delta Starter", "tid": "KOC-2025-05-1531", "tray": "new", "candidates": [ { "answer_id": "IMSP-004", "score": 0.5362228751182556, "sibling_score": 0.5362228751182556, "answer_score": 0.3431614100933075, "sibling_qid": "MUM-2026-06-3442-Q006", "sibling_text": "star delta starter junction box what all things", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Explain the star-delta starter, and what you find inside it when you open it — its components.", "cross_family": false }, { "answer_id": "SDST-A-001", "score": 0.52601557970047, "sibling_score": 0.52601557970047, "answer_score": null, "sibling_qid": "KOC-2024-01-1317-Q008", "sibling_text": "draw explain star delta starter why there is 6 cables in the junction box of a motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false }, { "answer_id": "SDC-002", "score": 0.4699879586696625, "sibling_score": 0.4699879586696625, "answer_score": 0.4399968832731247, "sibling_qid": "KOC-2024-01-1325-Q006", "sibling_text": "why 6 terminals in motor why 16 18 connections in alternator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "How do you identify star or delta at the terminal box, and why the terminal counts?", "cross_family": true } ] }, { "qid": "KOC-2025-05-1532-Q003", "text": "Why 6 terminals are there in the junction box", "family": "Electrical - Motors & Starters", "subtopic": "Star-Delta Starter", "tid": "KOC-2025-05-1532", "tray": "new", "candidates": [ { "answer_id": "IMSP-004", "score": 0.5362228155136108, "sibling_score": 0.5362228155136108, "answer_score": 0.3431614100933075, "sibling_qid": "MUM-2026-06-3442-Q006", "sibling_text": "star delta starter junction box what all things", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Explain the star-delta starter, and what you find inside it when you open it — its components.", "cross_family": false }, { "answer_id": "SDST-A-001", "score": 0.52601557970047, "sibling_score": 0.52601557970047, "answer_score": null, "sibling_qid": "KOC-2024-01-1317-Q008", "sibling_text": "draw explain star delta starter why there is 6 cables in the junction box of a motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false }, { "answer_id": "SDC-002", "score": 0.4699879288673401, "sibling_score": 0.4699879288673401, "answer_score": 0.4399968326091766, "sibling_qid": "KOC-2024-01-1325-Q006", "sibling_text": "why 6 terminals in motor why 16 18 connections in alternator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "How do you identify star or delta at the terminal box, and why the terminal counts?", "cross_family": true } ] }, { "qid": "KOC-2025-05-1533-Q005", "text": "■Are u aware how to read electrical circuits", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Logic Gates / Circuits", "tid": "KOC-2025-05-1533", "tray": "review", "candidates": [ { "answer_id": "GMCM-583-A-002", "score": 0.6713804006576538, "sibling_score": 0.6713804006576538, "answer_score": null, "sibling_qid": "KOC-2022-08-1190-Q008", "sibling_text": "multimeter circuit diagram internal no questions asked me to study well and come next time", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "02. The multimeter — construction, internal circuit, and how one instrument reads several different parameters", "cross_family": false }, { "answer_id": "ELEC-ELX-015", "score": 0.6672366857528687, "sibling_score": 0.6672366857528687, "answer_score": null, "sibling_qid": "KOC-2025-03-0570-Q002", "sibling_text": "explain one electronic circuit", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Explain one electronic circuit — bridge-rectifier supply", "cross_family": false }, { "answer_id": "GMCM-583-A-003", "score": 0.6251735091209412, "sibling_score": 0.6251735091209412, "answer_score": 0.4757984608411789, "sibling_qid": "KOC-2026-05-0030-Q010", "sibling_text": "how to check current in a control circuit using multi meter", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "03. Measuring current with a multimeter — series connection, jack selection, and control circuits", "cross_family": false } ] }, { "qid": "KOC-2025-05-1533-Q006", "text": "■How contractor and led is represented in the circuit", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Logic Gates / Circuits", "tid": "KOC-2025-05-1533", "tray": "new", "candidates": [ { "answer_id": "ELEC-ELX-001", "score": 0.4748411178588867, "sibling_score": 0.4748411178588867, "answer_score": 0.3538162410259247, "sibling_qid": "MUM-2026-02-1919-Q003", "sibling_text": "florescent light circuit", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Fluorescent and LED tube-light — choke and starter", "cross_family": false }, { "answer_id": "SCR-306-B-003", "score": 0.45610329508781433, "sibling_score": 0.45610329508781433, "answer_score": null, "sibling_qid": "KOL-2022-04-2556-Q001", "sibling_text": "triac uses construction", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "TRIAC and DIAC — construction, triggering and use", "cross_family": false }, { "answer_id": "XFMR-A-001", "score": 0.4407166540622711, "sibling_score": 0.4407166540622711, "answer_score": null, "sibling_qid": "MUM-2017-01-2126-Q015", "sibling_text": "lighting transformer", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Lighting transformer — application and changeover", "cross_family": false } ] }, { "qid": "KOC-2025-05-1534-Q001", "text": "How to order main LO Pump motor(motor specifications)", "family": "Electrical - Motors & Starters", "subtopic": "Motor Specification / Ordering", "tid": "KOC-2025-05-1534", "tray": "review", "candidates": [ { "answer_id": "BRG-NOM-001", "score": 0.749403178691864, "sibling_score": 0.749403178691864, "answer_score": null, "sibling_qid": "MUM-2026-09-3984-Q011", "sibling_text": "specification of motor how to order a motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Bearing Numbers, Suffixes and What to State When Ordering", "cross_family": false }, { "answer_id": "IP-ENCL-002", "score": 0.7468937039375305, "sibling_score": 0.7468937039375305, "answer_score": null, "sibling_qid": "KOC-2025-12-1658-Q005", "sibling_text": "how to order main sea water pump motor and ip and class", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Suitable IP rating by location — ER, deck, pump, generator", "cross_family": false }, { "answer_id": "IP-ENCL-001", "score": 0.6849520802497864, "sibling_score": 0.6849520802497864, "answer_score": null, "sibling_qid": "KOC-2025-02-1497-Q002", "sibling_text": "how to order a s w pump motor asked about ip rating", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "IP rating of motors — what the numbers mean", "cross_family": false } ] }, { "qid": "KOC-2025-05-1535-Q003", "text": "Draw circuit symbol of push button start stop Circuit symbol for timer", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Logic Gates / Circuits", "tid": "KOC-2025-05-1535", "tray": "new", "candidates": [ { "answer_id": "EPC-P02-01", "score": 0.6297474503517151, "sibling_score": 0.6297474503517151, "answer_score": null, "sibling_qid": "KOC-2025-05-1913-Q009", "sibling_text": "draw zener symbol", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a zener diode? 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Pre-start checks after decarb / recommissioning", "cross_family": true } ] }, { "qid": "KOC-2025-05-2064-Q002", "text": "Capacity test of GMDSS battery and solas requirement", "family": "SOLAS - LSA & Lifeboats", "subtopic": "EPIRB / SART", "tid": "KOC-2025-05-2064", "tray": "review", "candidates": [ { "answer_id": "bdc-p05-03", "score": 0.6589329242706299, "sibling_score": 0.6589329242706299, "answer_score": 0.5146395206451416, "sibling_qid": "KOL-2025-09-2852-Q005", "sibling_text": "batteries requirements solas requirements gmdss battery requirement", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "CQ-BDC-025 GMDSS reserve battery — requirement, supply, voltage and equipment Medium", "cross_family": true }, { "answer_id": "BDC-P04-05", "score": 0.650365948677063, "sibling_score": 0.650365948677063, "answer_score": 0.5702704608440399, "sibling_qid": "KOL-2021-05-3403-Q008", "sibling_text": "gmdss batteries test", "sibling_family": "Electrical - 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Tankers", "via": "sibling", "answer_title": "Pump-room electrical safety, lighting and portable equipment", "cross_family": false }, { "answer_id": "EXD-EXI-A-002", "score": 0.5864710807800293, "sibling_score": 0.5864710807800293, "answer_score": null, "sibling_qid": "KOC-2023-10-0225-Q016", "sibling_text": "battery room type of light and is gas tight and safety precaution before doing maintenance few question i couldnt recall sorry for delay guys", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "Ex d (flameproof / explosion-proof) — construction, shipboard applications and maintenance", "cross_family": false }, { "answer_id": "HAZ-EX-B-001", "score": 0.5554008483886719, "sibling_score": 0.5554008483886719, "answer_score": null, "sibling_qid": "KOC-2021-07-1142-Q012", "sibling_text": "intrinsically safe torch working", "sibling_family": "", "via": "sibling", "answer_title": "Intrinsically safe (Ex i) equipment — what it is, how it works, where it is used, how you identify it", "cross_family": false } ] }, { "qid": "KOC-2025-05-2066-Q006", "text": "What covers the fund under MLC", "family": "MLC", "subtopic": "MLC / DMLC / Work-Rest", "tid": "KOC-2025-05-2066", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-006", "score": 0.4605315327644348, "sibling_score": 0.4605315327644348, "answer_score": null, "sibling_qid": "MUM-2026-07-3680-Q005", "sibling_text": "what is mlc certificate under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false }, { "answer_id": "MLC-WRH-B-007", "score": 0.4518801271915436, "sibling_score": 0.4518801271915436, "answer_score": null, "sibling_qid": "MUM-2026-01-0701-Q002", "sibling_text": "detainable deficiency of mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false }, { "answer_id": "CLC-CIV-A-005", "score": 0.44947880506515503, "sibling_score": 0.44947880506515503, "answer_score": 0.2851653754711151, "sibling_qid": "MUM-2022-07-0015-Q014", "sibling_text": "clc fund conv and supplementary fund", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Fund Convention — IOPC and the Supplementary Fund", "cross_family": true } ] }, { "qid": "KOC-2025-05-2066-Q007", "text": "DMLC-1 and DMLC-2", "family": "MLC", "subtopic": "MLC / DMLC / Work-Rest", "tid": "KOC-2025-05-2066", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.7763336896896362, "sibling_score": 0.7763336896896362, "answer_score": 0.2834853336215019, "sibling_qid": "MUM-2026-01-0673-Q004", "sibling_text": "dmlc 1 and dmlc 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "SB-RATIO-002", "score": 0.24974091500043868, "sibling_score": null, "answer_score": 0.24974091500043868, "sibling_qid": "", "sibling_text": "differentiate short long super long and ultra long stroke engines with the exact ratio of each what is s and what is l k short stroke k98mc c 980 2 400 2 45 k98mc 980 2 660 2 71 k80mc c 800 2 300 2 88 l long stroke l70mc 700 2 268 3 24 l80mc 800 2 592 3 24 l70mc c 700 2 360 3 37", "sibling_family": "", "via": "answer_title", "answer_title": "Differentiate short, long, super-long and ultra-long stroke engines, with the exact ratio of each. 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What is parametric rolling?", "cross_family": false }, { "answer_id": "PAR-ROLL-004", "score": 0.5064016580581665, "sibling_score": 0.5064016580581665, "answer_score": 0.3434527784585953, "sibling_qid": "KOL-2022-09-0679-Q005", "sibling_text": "roll period formulae parametric and synchronous rolling", "sibling_family": "", "via": "sibling", "answer_title": "04. Parametric vs synchronous rolling (and the ‘sequential / prismatic’ variants)", "cross_family": false } ] }, { "qid": "KOC-2025-06-0605-Q002", "text": "Type of vessel- chemical and product tankers", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2025-06-0605", "tray": "review", "candidates": [ { "answer_id": "BCH-IBC-A-001", "score": 0.8082529306411743, "sibling_score": 0.8082529306411743, "answer_score": null, "sibling_qid": "CHE-2026-03-0128-Q001", "sibling_text": "type of chemical tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type 1, Type 2 and Type 3 chemical tankers — the ship-type classification", "cross_family": false }, { "answer_id": "IBC-BCH-B-004", "score": 0.8043907284736633, "sibling_score": 0.8043907284736633, "answer_score": null, "sibling_qid": "MUM-2026-03-0859-Q001", "sibling_text": "pre sea and vessel type chemical tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Certificate of Fitness and MARPOL Annex II in practice", "cross_family": false }, { "answer_id": "IBC-BCH-B-002", "score": 0.7992562055587769, "sibling_score": 0.7992562055587769, "answer_score": null, "sibling_qid": "MUM-2026-04-0883-Q001", "sibling_text": "type of vessel sailed chem product tanker", "sibling_family": "Cargo Ops - 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"via": "sibling", "answer_title": "How air is admitted, and faults that stop starting air admission", "cross_family": true }, { "answer_id": "ME-NOSTART-005", "score": 0.7046689391136169, "sibling_score": 0.7046689391136169, "answer_score": null, "sibling_qid": "MUM-2026-02-2570-Q002", "sibling_text": "main engine slow turning but not starting fuel reasons", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Will not pick up fuel / rpm from slow speed — causes and checks", "cross_family": false } ] }, { "qid": "KOC-2025-06-1040-Q009", "text": "LTA apparatus", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Lifeboat / Davit / LSA", "tid": "KOC-2025-06-1040", "tray": "new", "candidates": [ { "answer_id": "LB-SURV-C-010", "score": 0.38692840933799744, "sibling_score": 0.38692840933799744, "answer_score": null, "sibling_qid": "MUM-2026-08-3837-Q007", "sibling_text": "l b launching procedure", "sibling_family": "SOLAS - LSA & Lifeboats", "via": 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"crack in the rudder as 2eng prepare repair plan internal deciding", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "WBS-C-006", "score": 0.5784196257591248, "sibling_score": 0.5784196257591248, "answer_score": 0.5266487002372742, "sibling_qid": "KOL-2018-08-3185-Q003", "sibling_text": "propeller blade crack repair to be carried out", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Propeller and rudder repair — grading the damage and the Class-approved route", "cross_family": true }, { "answer_id": "CEM-BOX-001", "score": 0.5199849724769592, "sibling_score": null, "answer_score": 0.5199849724769592, "sibling_qid": "", "sibling_text": "temporary repair with a cement box until dry dock take me through it reduce the head first trim or list by ballast isolate the line where the system allows crack drill stop holes at both tips removes the sharp stress raising tip so the crack cannot run", "sibling_family": "", "via": "answer_title", "answer_title": "Temporary repair with a cement box until dry dock—take me through it.", "cross_family": false } ] }, { "qid": "KOC-2025-06-1916-Q017", "text": "AE flywheel markings missing .How will you mark again?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Camshaft, Timing Gear / Valve Timing", "tid": "KOC-2025-06-1916", "tray": "review", "candidates": [ { "answer_id": "FCAM-LEAD-P04-002", "score": 0.6607351303100586, "sibling_score": 0.6607351303100586, "answer_score": 0.49925237298011776, "sibling_qid": "KOL-2023-07-3620-Q004", "sibling_text": "in main engine flywheel marking is not there you have to do the marking of every unit tdc procdure how to do", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Finding TDC when flywheel markings are missing", "cross_family": true }, { "answer_id": "LB-REQ-B-003", "score": 0.607639729976654, "sibling_score": 0.607639729976654, "answer_score": null, "sibling_qid": "KOL-2017-12-3104-Q003", "sibling_text": "for a new lifeboat engine there is no marking on flywheel how you mark how to know exact point of tdc", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Finding TDC, marking the flywheel, checking timing & the decompression lever", "cross_family": true }, { "answer_id": "AE-CAMTIM-002", "score": 0.582696259021759, "sibling_score": 0.582696259021759, "answer_score": null, "sibling_qid": "KOC-2024-11-1016-Q003", "sibling_text": "how to check timing of aux engine via flywheel markings", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Checking four-stroke AE inlet and exhaust valve timing", "cross_family": false } ] }, { "qid": "KOC-2025-06-1916-Q018", "text": "ME crosshead clearances in detail", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Crosshead Bearing", "tid": "KOC-2025-06-1916", "tray": "review", "candidates": [ { "answer_id": "XHEAD-303-005", "score": 0.6858864426612854, "sibling_score": 0.6858864426612854, "answer_score": 0.5123604536056519, "sibling_qid": "KOL-2016-10-1245-Q002", "sibling_text": "cross head all clearance", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead guide and shoe clearances: how and where taken, limits", "cross_family": false }, { "answer_id": "CXH-BRG-FINAL-1-006", "score": 0.6577118635177612, "sibling_score": 0.6577118635177612, "answer_score": 0.5158815979957581, "sibling_qid": "MUM-2022-12-1039-Q005", "sibling_text": "crosshead clearance how we take", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead & guide-shoe clearances: how, where, how much, piston position & why", "cross_family": false }, { "answer_id": "XHD-BRG-B-004", "score": 0.6536276340484619, "sibling_score": 0.6536276340484619, "answer_score": 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hydraulic pressure", "cross_family": false }, { "answer_id": "TBR-TT-P02-001", "score": 0.5537039637565613, "sibling_score": 0.5537039637565613, "answer_score": null, "sibling_qid": "KOL-2020-02-3329-Q003", "sibling_text": "tie rod tightening procedure hyd press for tightening why so high", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Tie rod tightening / hydraulic tensioning procedure", "cross_family": false }, { "answer_id": "PRE-TEN-004", "score": 0.5341788530349731, "sibling_score": 0.5341788530349731, "answer_score": 0.4138503596186638, "sibling_qid": "CHE-2025-10-0446-Q001", "sibling_text": "you don t have torque wrench how you tight", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Tightening cylinder-head hydraulic bolts or nuts without a torque wrench", "cross_family": false } ] }, { "qid": "KOC-2025-06-1918-Q005", "text": "Cylinder head - pressure pump showing rated pressure but nut not 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Reason , how to rectify", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Cover / Head", "tid": "KOC-2025-06-1918", "tray": "review", "candidates": [ { "answer_id": "HYD-JACK-002", "score": 0.753782331943512, "sibling_score": 0.753782331943512, "answer_score": 0.5089285790920257, "sibling_qid": "KOC-2026-02-1998-Q014", "sibling_text": "when u open cylinder head nut hydraulic jack pressed upto opening pressure but nut not opening reasons", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Hydraulic jack leaks, seizes, will not reach pressure, or nut will not loosen", "cross_family": false }, { "answer_id": "PRE-TEN-006", "score": 0.7080320119857788, "sibling_score": 0.7080320119857788, "answer_score": 0.5569896161556244, "sibling_qid": "CHE-2026-02-0484-Q005", "sibling_text": "ae cylinder head nut not opening in desired pressure how much will u increase even though increasing pressure what will you do", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Cylinder-head nut will not open at the specified hydraulic pressure", "cross_family": true }, { "answer_id": "CCH-590-002", "score": 0.612800657749176, "sibling_score": 0.612800657749176, "answer_score": null, "sibling_qid": "CHE-2025-11-0221-Q003", "sibling_text": "leak from cylinder head how to pressure test and rectify", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "How do you pressure test a cylinder head, and how do you find and rectify a leak from it?", "cross_family": false } ] }, { "qid": "KOC-2025-06-1920-Q002", "text": "Cross head bearing overhaul", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Crosshead Bearing", "tid": "KOC-2025-06-1920", "tray": "review", "candidates": [ { "answer_id": "XHD-BRG-C-002", "score": 0.8378216028213501, "sibling_score": 0.8378216028213501, "answer_score": 0.5902799844741821, "sibling_qid": "KOC-2022-11-1798-Q003", "sibling_text": "cross head bearing overhaul", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "B. 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Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": true }, { "answer_id": "LL-CONV-P06-004", "score": 0.46124112606048584, "sibling_score": 0.46124112606048584, "answer_score": 0.2831623762845993, "sibling_qid": "KOC-2024-11-0463-Q009", "sibling_text": "loadline", "sibling_family": "", "via": "sibling", "answer_title": "LLC-P06-04 - General load-line requirement, marks, stability link and overloading consequences", "cross_family": false } ] }, { "qid": "KOC-2025-07-0624-Q007", "text": "SMS manuals and location", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOC-2025-07-0624", "tray": "review", "candidates": [ { "answer_id": "SMSFR-002", "score": 0.7196983695030212, "sibling_score": 0.7196983695030212, "answer_score": 0.3327796831727028, "sibling_qid": "KOC-2026-05-0036-Q008", "sibling_text": "sms manuals internal", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the Safety Management System — the SMS manual, its contents, objectives, why it is needed onboard, and the company SMS policy?", "cross_family": false }, { "answer_id": "ISM-AUDIT-P01-002", "score": 0.5458108186721802, "sibling_score": 0.5458108186721802, "answer_score": null, "sibling_qid": "KOC-2026-05-0049-Q005", "sibling_text": "ism survey only documentation contents of sms", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM/SMS audits and verifications — types, who conducts them, intervals and validity", "cross_family": false }, { "answer_id": "ISM-SMCDOC-A-001", "score": 0.5405246019363403, "sibling_score": 0.5405246019363403, "answer_score": null, "sibling_qid": "KOL-2018-06-2202-Q016", "sibling_text": "doc sms ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM certificates: the DOC and SMC family", "cross_family": false } ] }, { "qid": "KOC-2025-07-0626-Q002", "text": "Lodicater how its working? Comes under solas chapter? Difference inclinometer and lodicator ?", "family": "Stability & Loadicator", "subtopic": "Loadicator", "tid": "KOC-2025-07-0626", "tray": "new", "candidates": [ { "answer_id": "LLC-SURV-P02-001", "score": 0.4769875407218933, "sibling_score": 0.4769875407218933, "answer_score": null, "sibling_qid": "MUM-2026-01-2905-Q007", "sibling_text": "loadline survey only on deck with respect to lsa", "sibling_family": "", "via": "sibling", "answer_title": "1. 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Correcting angle of loll — the ballasting sequence", "cross_family": false } ] }, { "qid": "KOC-2025-07-0626-Q003", "text": "SMS manual? How many manuals onboard? Tell all the manuals onboard regarding sms ?", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOC-2025-07-0626", "tray": "review", "candidates": [ { "answer_id": "SMSFR-002", "score": 0.7817087769508362, "sibling_score": 0.7817087769508362, "answer_score": 0.4331170737743378, "sibling_qid": "KOC-2026-05-0036-Q008", "sibling_text": "sms manuals internal", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the Safety Management System — the SMS manual, its contents, objectives, why it is needed onboard, and the company SMS policy?", "cross_family": false }, { "answer_id": "ISM-AUDIT-P01-002", "score": 0.5912426114082336, "sibling_score": 0.5912426114082336, "answer_score": null, "sibling_qid": "KOC-2026-05-0049-Q005", "sibling_text": "ism survey only documentation contents of sms", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM/SMS audits and verifications — types, who conducts them, intervals and validity", "cross_family": false }, { "answer_id": "ISM-SMCDOC-A-001", "score": 0.5855799317359924, "sibling_score": 0.5855799317359924, "answer_score": null, "sibling_qid": "KOL-2018-06-2202-Q016", "sibling_text": "doc sms ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM certificates: the DOC and SMC family", "cross_family": false } ] }, { "qid": "KOC-2025-07-0626-Q004", "text": "life boat davit maintenance ? Comes under which code ? Where will we get information regarding maintenance schedule and what items to be do maintenance? who will do the maintenance ?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Davit / Release Gear", "tid": "KOC-2025-07-0626", "tray": "review", "candidates": [ { "answer_id": "DRG-B-006", "score": 0.7925476431846619, "sibling_score": 0.7925476431846619, "answer_score": null, "sibling_qid": "KOL-2021-12-0583-Q005", "sibling_text": "lifeboat yearly maintenance as 2e lowering and davit and fall maintenance", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Falls — maintenance, end-for-ending and renewal", "cross_family": false }, { "answer_id": "DRG-B-013", "score": 0.7878320813179016, "sibling_score": 0.7878320813179016, "answer_score": null, "sibling_qid": "KOC-2024-02-1327-Q010", "sibling_text": "what all maintenance done on lifeboat davit", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "The test and examination regime — and what PSC looks at", "cross_family": false }, { "answer_id": "DRG-B-002", "score": 0.7512487173080444, "sibling_score": 0.7512487173080444, "answer_score": null, "sibling_qid": "KOL-2018-01-0145-Q007", "sibling_text": "long term maintenance on life boat davit winches", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "The lifeboat winch — construction, hoisting and long-term maintenance", "cross_family": false } ] }, { "qid": "KOC-2025-07-0626-Q005S2", "text": "What is maximum KG?", "family": "", "subtopic": "", "tid": "KOC-2025-07-0626", "tray": "new", "candidates": [ { "answer_id": "GM-META-002", "score": 0.5342220664024353, "sibling_score": 0.5342220664024353, "answer_score": null, "sibling_qid": "MUM-2025-04-0243-Q002", "sibling_text": "how to find kg", "sibling_family": "", "via": "sibling", "answer_title": "How loading, discharge, ballast and lifts move G and GM", "cross_family": false }, { "answer_id": "GM-META-001", "score": 0.5280171036720276, "sibling_score": 0.5280171036720276, "answer_score": null, "sibling_qid": "KOC-2025-07-0637-Q009", "sibling_text": "what is kb bm kg", "sibling_family": "", "via": "sibling", "answer_title": "Determining KB, BM, KM, KG and the stability chain", "cross_family": false }, { "answer_id": "INCL-EXP-D-001", "score": 0.5216768980026245, "sibling_score": 0.5216768980026245, "answer_score": null, "sibling_qid": "KOC-2025-07-0633-Q025", "sibling_text": "how do we find kg", "sibling_family": "", "via": "sibling", "answer_title": "Finding GM — then KG and the centre of gravity", "cross_family": false } ] }, { "qid": "KOC-2025-07-0626-Q005S3", "text": "What is IP code ? Explanation and recent updates of this code ?", "family": "", "subtopic": "", "tid": "KOC-2025-07-0626", "tray": "new", "candidates": [ { "answer_id": "STAB-D-001", "score": 0.5493477582931519, "sibling_score": 0.5493477582931519, "answer_score": null, "sibling_qid": "KOC-2025-03-0584-Q003", "sibling_text": "ip code explain what all comes under ip code", "sibling_family": "", "via": "sibling", "answer_title": "General Ship Stability - How I Open Any Stability Question", "cross_family": false }, { "answer_id": "ISPS-SL-001", "score": 0.4781797528266907, "sibling_score": 0.4781797528266907, "answer_score": 0.2962224274873733, "sibling_qid": "KOC-2024-09-0405-Q006", "sibling_text": "isps code explain", "sibling_family": "ISPS", "via": "sibling", "answer_title": "The ISPS Code — purpose, scope and the SOLAS link", "cross_family": false }, { "answer_id": "IGC-IGF-004", "score": 0.45629405975341797, "sibling_score": 0.45629405975341797, "answer_score": null, "sibling_qid": "MUM-2025-12-0649-Q015", "sibling_text": "latest amendment in igc code", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Latest amendments / new regulations — IGC and gas tankers", "cross_family": false } ] }, { "qid": "KOC-2025-07-0626-Q005S4", "text": "What is structural fire test ?", "family": "", "subtopic": "", "tid": "KOC-2025-07-0626", "tray": "new", "candidates": [ { "answer_id": "A60-BCLASS-003", "score": 0.6358218193054199, "sibling_score": 0.6358218193054199, "answer_score": 0.47893663644790646, "sibling_qid": "MUM-2025-12-0616-Q006", "sibling_text": "standard fire test", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "FTP Code and the standard fire test", "cross_family": false }, { "answer_id": "A60-BCLASS-004", "score": 0.6333359479904175, "sibling_score": 0.6333359479904175, "answer_score": 0.4344075858592987, "sibling_qid": "KOC-2025-08-0646-Q006", "sibling_text": "fire structural safety", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Structural fire protection — containing fire spread", "cross_family": false }, { "answer_id": "FCP-005", "score": 0.6211632490158081, "sibling_score": 0.6211632490158081, "answer_score": 0.526004660129547, "sibling_qid": "KOC-2022-09-0091-Q008", "sibling_text": "structural fire protection plan", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "What is structural fire protection, and what does the structural fire protection plan or manual show?", "cross_family": false } ] }, { "qid": "KOC-2025-07-0628-Q004", "text": "MLC titles and explain title 2", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOC-2025-07-0628", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.6534188389778137, "sibling_score": 0.6534188389778137, "answer_score": 0.2352169543504715, "sibling_qid": "KOC-2026-05-2135-Q011", "sibling_text": "mlc titles explain title 1 explain dmlc part 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "ISM-2E-A-001", "score": 0.4308038055896759, "sibling_score": 0.4308038055896759, "answer_score": null, "sibling_qid": "CHE-2026-04-0163-Q018", "sibling_text": "role of 2e in mlc and ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Roles, duties and responsibilities of a Second Engineer under ISM/SMS", "cross_family": true }, { "answer_id": "MLC-WRH-B-006", "score": 0.4137789011001587, "sibling_score": 0.4137789011001587, "answer_score": null, "sibling_qid": "MUM-2026-07-3680-Q005", "sibling_text": "what is mlc certificate under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false } ] }, { "qid": "KOC-2025-07-0629-Q002", "text": "ship sailed? Gas tanker", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2025-07-0629", "tray": "review", "candidates": [ { "answer_id": "LPG-LNG-009", "score": 0.7376466989517212, "sibling_score": 0.7376466989517212, "answer_score": 0.47210946679115295, "sibling_qid": "CHE-2026-04-0164-Q001", "sibling_text": "type of ship sailed lpg carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Gas-carrier fundamentals and ship-specific traps", "cross_family": false }, { "answer_id": "COT-01", "score": 0.7165120244026184, "sibling_score": 0.7165120244026184, "answer_score": null, "sibling_qid": "KOC-2026-04-0892-Q003", "sibling_text": "type of ship sailed tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Oil-tanker types, definitions and cargo capability", "cross_family": false }, { "answer_id": "IGC-GAS-006", "score": 0.6737746000289917, "sibling_score": 0.6737746000289917, "answer_score": null, "sibling_qid": "MUM-2026-06-3358-Q006", "sibling_text": "fixed fire fight for gas ship as my was gas carrier", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Deck fixed dry chemical powder (DCP) fire-extinguishing system", "cross_family": true } ] }, { "qid": "KOC-2025-07-0629-Q007", "text": "bollard regulations? What is safe working load?what is the use of SWL?", "family": "Auxiliary Equipment", "subtopic": "Mooring / Bollard", "tid": "KOC-2025-07-0629", "tray": "new", "candidates": [ { "answer_id": "ERC-345-004", "score": 0.5232436656951904, "sibling_score": 0.5232436656951904, "answer_score": null, "sibling_qid": "MUM-2026-06-3578-Q002", "sibling_text": "er crane testing for swl", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Load test, SWL and survey", "cross_family": false }, { "answer_id": "CRANE-ER-001", "score": 0.5143625736236572, "sibling_score": 0.5143625736236572, "answer_score": null, "sibling_qid": "MUM-2026-05-3131-Q004", "sibling_text": "swl testing of engine room crane and its safeties", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Pre-use safety, maintenance & certification checks on the ER crane", "cross_family": false }, { "answer_id": "WIND-WNCH-009", "score": 0.5032538771629333, "sibling_score": 0.5032538771629333, "answer_score": null, "sibling_qid": "MUM-2026-03-0862-Q007", "sibling_text": "winches and davit safety", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Windlass / winch safeties", "cross_family": false } ] }, { "qid": "KOC-2025-07-0631-Q004", "text": "■AIS and LRIT difference", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "KOC-2025-07-0631", "tray": "new", "candidates": [ { "answer_id": "EPIRB-SART-002", "score": 0.36034631729125977, "sibling_score": 0.36034631729125977, "answer_score": 0.3324393227696419, "sibling_qid": "CHE-2026-05-0535-Q007", "sibling_text": "sart and ais sart", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What is an AIS-SART and how does it differ from a radar SART?", "cross_family": true }, { "answer_id": "PI-211-003", "score": 0.3429802656173706, "sibling_score": 0.3429802656173706, "answer_score": null, "sibling_qid": "KOL-2025-12-2940-Q006", "sibling_text": "differences between pi and ir", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "PI versus insulation resistance, and why the 1-minute and 10-minute readings are compared", "cross_family": true }, { "answer_id": "AV6-P05-02", "score": 0.33953994512557983, "sibling_score": 0.33953994512557983, "answer_score": null, "sibling_qid": "KOL-2025-09-1062-Q010", "sibling_text": "aer and eeoi difference", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "AER versus EEOI — formulas, denominators and calculation period", "cross_family": true } ] }, { "qid": "KOC-2025-07-0631-Q007", "text": "■IMO number locations on ship and regulation. Int-", "family": "IMO Structure & Conventions", "subtopic": "IMO / Committees / Codes", "tid": "KOC-2025-07-0631", "tray": "review", "candidates": [ { "answer_id": "SOLAS-OVW-011", "score": 0.7213187217712402, "sibling_score": 0.7213187217712402, "answer_score": 0.5188397645950317, "sibling_qid": "KOC-2026-04-0896-Q004", "sibling_text": "imo number regulation and places where it will be there", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "SOLAS Chapter XI-1 — special measures (safety): IMO number marking", "cross_family": true }, { "answer_id": "IMO-5PIL-005", "score": 0.5991765856742859, "sibling_score": 0.5991765856742859, "answer_score": null, "sibling_qid": "MUM-2025-01-0235-Q007", "sibling_text": "name regulations of imo with respect to safety", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "IMO conventions for ship safety", "cross_family": false }, { "answer_id": "IMO-CODES-P02-001", "score": 0.5948696136474609, "sibling_score": 0.5948696136474609, "answer_score": 0.4432764112949371, "sibling_qid": "MUM-2026-05-2997-Q002", "sibling_text": "what is imo convention", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "IMO instruments: convention, code, protocol, amendment, regulation, resolution and rule", "cross_family": false } ] }, { "qid": "KOC-2025-07-0631-Q010", "text": "■MS Act Chapters", "family": "IMO Structure & Conventions", "subtopic": "IMO / Committees / Codes", "tid": "KOC-2025-07-0631", "tray": "new", "candidates": [ { "answer_id": "FLAG-ST-006", "score": 0.5478700399398804, "sibling_score": 0.5478700399398804, "answer_score": null, "sibling_qid": "KOL-2018-02-0150-Q003", "sibling_text": "ms act", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Indian flag administration — MS Act, DGMA and the boards", "cross_family": true }, { "answer_id": "SOLAS-CH-015", "score": 0.5303342938423157, "sibling_score": 0.5303342938423157, "answer_score": 0.38809374570846555, "sibling_qid": "KOC-2023-12-0260-Q010", "sibling_text": "solas chapters", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS chapters overview - current count and scope", "cross_family": false }, { "answer_id": "ISM-ELEM-003", "score": 0.521344780921936, "sibling_score": 0.521344780921936, "answer_score": 0.3470356822013855, "sibling_qid": "KOC-2026-08-2149-Q007", "sibling_text": "ism chapters", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": true } ] }, { "qid": "KOC-2025-07-0633-Q003", "text": "Type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2025-07-0633", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8361091613769531, "sibling_score": 0.8361091613769531, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8013883233070374, "sibling_score": 0.8013883233070374, "answer_score": 0.5470469176769256, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8000956177711487, "sibling_score": 0.8000956177711487, "answer_score": 0.5211817562580109, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "KOC-2025-07-0633-Q004", "text": "Cross section of ship", "family": "Cargo Ops - Tankers", "subtopic": "Cargo Tank Construction", "tid": "KOC-2025-07-0633", "tray": "review", "candidates": [ { "answer_id": "KGF-A-004", "score": 0.7728273272514343, "sibling_score": 0.7728273272514343, "answer_score": 0.5560844540596008, "sibling_qid": "KOC-2026-04-0894-Q002", "sibling_text": "cross section for ur ship", "sibling_family": "", "via": "sibling", "answer_title": "Hull / midship cross-section: draw & identify", "cross_family": false }, { "answer_id": "BSBH-420-002", "score": 0.7588955760002136, "sibling_score": 0.7588955760002136, "answer_score": null, "sibling_qid": "KOC-2026-09-2167-Q002", "sibling_text": "draw forward cross section of ship", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Fore-end / forepeak construction forward of the collision bulkhead — members and cross-section", "cross_family": false }, { "answer_id": "SHIPTYPE-BTC-004", "score": 0.7096098065376282, "sibling_score": 0.7096098065376282, "answer_score": null, "sibling_qid": "KOC-2025-06-0604-Q005", "sibling_text": "draw cross section of your last ship tanker", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Oil tanker hull construction — and its construction-related electrical safety", "cross_family": false } ] }, { "qid": "KOC-2025-07-0633-Q007", "text": "Ballast tanks", "family": "Other Conventions", "subtopic": "Ballast Water Convention / BWM / BWMS", "tid": "KOC-2025-07-0633", "tray": "review", "candidates": [ { "answer_id": "COT-09", "score": 0.6940699219703674, "sibling_score": 0.6940699219703674, "answer_score": 0.568045300245285, "sibling_qid": "MUM-2023-07-0117-Q001", "sibling_text": "ballast tank construction", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Ballast-tank construction", "cross_family": true }, { "answer_id": "DBTB-A-002", "score": 0.6938804388046265, "sibling_score": 0.6938804388046265, "answer_score": null, "sibling_qid": "KOL-2025-01-0911-Q002", "sibling_text": "ballast tank construction", "sibling_family": "", "via": "sibling", "answer_title": "Double-bottom tanks: purpose, advantages, disadvantages and stability effect", "cross_family": false }, { "answer_id": "BWMS-C-004", "score": 0.6858825087547302, "sibling_score": 0.6858825087547302, "answer_score": null, "sibling_qid": "KOL-2025-08-1021-Q009", "sibling_text": "ballast treatment on ur ship complete working and values", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Electrochlorination & chemical systems — TRO, active substances, neutralisation", "cross_family": false } ] }, { "qid": "KOC-2025-07-0633-Q010", "text": "How its connected to ships Hull", "family": "Cargo Ops - Tankers", "subtopic": "Cargo Tank Construction", "tid": "KOC-2025-07-0633", "tray": "review", "candidates": [ { "answer_id": "CHK-RM-001", "score": 0.7404254674911499, "sibling_score": 0.7404254674911499, "answer_score": null, "sibling_qid": "MUM-2026-06-3625-Q012", "sibling_text": "how it is connected to the ship hull", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "What are chocks? Function, types, where fitted and how placed — which have the biggest area, and how does the bedplate connect to the hull?", "cross_family": true }, { "answer_id": "BK-004", "score": 0.6377913355827332, "sibling_score": 0.6377913355827332, "answer_score": 0.5092861145734787, "sibling_qid": "MUM-2022-07-1012-Q007", "sibling_text": "how bilge keel is connected to hull so that crack should not penetrate in hull", "sibling_family": "", "via": "sibling", "answer_title": "How is a bilge keel attached to the hull, and how is hull cracking or rupture controlled?", "cross_family": false }, { "answer_id": "STS-P02-003", "score": 0.6250637769699097, "sibling_score": 0.6250637769699097, "answer_score": 0.5148968935012818, "sibling_qid": "CHE-2026-02-0115-Q006", "sibling_text": "how sterntube is connected to the ship explain", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "STS-P02-03 - Stern tube arrangement, fitting in hull and shaft support", "cross_family": true } ] }, { "qid": "KOC-2025-07-0633-Q011", "text": "Cladding y ..what it the Purpose", "family": "Cargo Ops - Tankers", "subtopic": "Cargo Tank Construction", "tid": "KOC-2025-07-0633", "tray": "new", "candidates": [ { "answer_id": "MR-DS-PV-B-001", "score": 0.3773643970489502, "sibling_score": 0.3773643970489502, "answer_score": null, "sibling_qid": "KOL-2026-07-4275-Q002", "sibling_text": "purpose of deck seal", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "1. 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Types, functions and arrangement of boiler tubes", "cross_family": true } ] }, { "qid": "KOC-2025-07-0633-Q020", "text": "What is radius of gyration equation", "family": "", "subtopic": "Static / Dynamic Stability", "tid": "KOC-2025-07-0633", "tray": "new", "candidates": [ { "answer_id": "BK-001", "score": 0.6404106616973877, "sibling_score": 0.6404106616973877, "answer_score": null, "sibling_qid": "KOC-2026-03-0878-Q015", "sibling_text": "raduis of gyration", "sibling_family": "", "via": "sibling", "answer_title": "What is a bilge keel and what is its purpose?", "cross_family": false }, { "answer_id": "BK-004", "score": 0.6154887676239014, "sibling_score": 0.6154887676239014, "answer_score": null, "sibling_qid": "KOC-2025-07-0633-Q019", "sibling_text": "how its connected radius of gyration", "sibling_family": "", "via": "sibling", "answer_title": "How is a bilge keel attached to the hull, and how is hull cracking or rupture controlled?", "cross_family": false }, { "answer_id": "BK-002", "score": 0.6018853187561035, "sibling_score": 0.6018853187561035, "answer_score": 0.3599840447306633, "sibling_qid": "KOC-2026-03-0880-Q006", "sibling_text": "period of roll equation radius of gyration relation and what is g", "sibling_family": "", "via": "sibling", "answer_title": "How does a bilge keel reduce rolling, and how does it relate to roll period and radius of gyration?", "cross_family": false } ] }, { "qid": "KOC-2025-07-0633-Q021", "text": "What is time period of roll equation", "family": "", "subtopic": "Static / Dynamic Stability", "tid": "KOC-2025-07-0633", "tray": "review", "candidates": [ { "answer_id": "BK-002", "score": 0.6582905054092407, "sibling_score": 0.6582905054092407, "answer_score": 0.38438471406698227, "sibling_qid": "KOC-2026-04-0894-Q004", "sibling_text": "period of roll radius of gyration", "sibling_family": "", "via": "sibling", "answer_title": "How does a bilge keel reduce rolling, and how does it relate to roll period and radius of gyration?", "cross_family": false }, { "answer_id": "PAR-ROLL-001", "score": 0.6021052002906799, "sibling_score": 0.6021052002906799, "answer_score": 0.34642680287361144, "sibling_qid": "KOL-2021-12-0578-Q003", "sibling_text": "parametric rolling relation between rolling and pitching periods", "sibling_family": "", "via": "sibling", "answer_title": "01. What is parametric rolling?", "cross_family": false }, { "answer_id": "PAR-ROLL-004", "score": 0.5695365071296692, "sibling_score": 0.5695365071296692, "answer_score": 0.4035267189145088, "sibling_qid": "KOL-2022-09-0679-Q005", "sibling_text": "roll period formulae parametric and synchronous rolling", "sibling_family": "", "via": "sibling", "answer_title": "04. 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ME vs AE foundation — rigid chocking against resilient mounting", "cross_family": true }, { "answer_id": "AEME-DIFF-001", "score": 0.5332425832748413, "sibling_score": 0.5332425832748413, "answer_score": null, "sibling_qid": "MUM-2024-08-1089-Q004", "sibling_text": "cross sectional difference between me and ae con rods", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "CHK-RM-002", "score": 0.5115401744842529, "sibling_score": 0.5115401744842529, "answer_score": null, "sibling_qid": "KOL-2021-09-3456-Q005", "sibling_text": "what are the different types of foundation chocks in main engine how are resin chocks built in place and advantages", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Explain resin chocking — what it is, how it is done, and how resin chocks are cast and poured.", "cross_family": true } ] }, { "qid": "KOC-2025-07-1045-Q003", "text": "Main engine exhaust manifold construction and cross question", "family": "2-Stroke - Exhaust, Valve & Starting Air", "subtopic": "Exhaust Manifold / Uptakes", "tid": "KOC-2025-07-1045", "tray": "review", "candidates": [ { "answer_id": "EXHV-297-007", "score": 0.8319704532623291, "sibling_score": 0.8319704532623291, "answer_score": 0.5346848130226135, "sibling_qid": "MUM-2025-10-2433-Q004", "sibling_text": "main engine exhaust manifold construction and cross question", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust manifold / gas receiver — construction, joints, inspection & temperature locations", "cross_family": false }, { "answer_id": "EXV-P02-001", "score": 0.6826929450035095, "sibling_score": 0.6826929450035095, "answer_score": null, "sibling_qid": "KOL-2019-11-3297-Q001", "sibling_text": "what o h u have done on main engine i told exhaust valve full overhauling of exhaust valve and many cross questions", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve overhaul & dismantling — procedure and precautions", "cross_family": false }, { "answer_id": "EXHV-297-001", "score": 0.6330870985984802, "sibling_score": 0.6330870985984802, "answer_score": null, "sibling_qid": "MUM-2026-05-3219-Q005", "sibling_text": "exhaust valve construction", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve — construction, materials, type, working & latest developments", "cross_family": false } ] }, { "qid": "KOC-2025-07-1046-Q007", "text": "Cross head bearing clearance inspection procedure", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Crosshead Bearing", "tid": "KOC-2025-07-1046", "tray": "review", "candidates": [ { "answer_id": "XHD-BRG-B-004", "score": 0.8173219561576843, "sibling_score": 0.8173219561576843, "answer_score": 0.6054705560207366, "sibling_qid": "KOC-2026-08-2161-Q006", "sibling_text": "procedure for taking cross head bearing clearance", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Measuring crosshead bearing and guide-shoe clearances", "cross_family": false }, { "answer_id": "XHD-BRG-C-003", "score": 0.8005814552307129, "sibling_score": 0.8005814552307129, "answer_score": null, "sibling_qid": "KOL-2025-03-3768-Q002", "sibling_text": "cross head bearing inspection and clearances", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "C. 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Load, current or kW sharing fluctuating in parallel operation — actions", "cross_family": false }, { "answer_id": "LS-IMB-A-001", "score": 0.6153776049613953, "sibling_score": 0.6153776049613953, "answer_score": null, "sibling_qid": "MUM-2024-04-0168-Q022", "sibling_text": "one generator load is low", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Two paralleled generators sharing unequal load — cause and correction", "cross_family": false }, { "answer_id": "ALT-GEN-P03-002", "score": 0.611448347568512, "sibling_score": 0.611448347568512, "answer_score": 0.4578268438577652, "sibling_qid": "CHE-2026-05-0538-Q002", "sibling_text": "when generator running suddenly start a large load what will happen", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Generator load effects, voltage dip/droop, noise, and overheating symptoms", "cross_family": false } ] }, { "qid": "KOC-2025-07-1546-Q005", "text": "3 point starter drawing", "family": "Electrical - Motors & Starters", "subtopic": "DC Motor Three-Point Starter", "tid": "KOC-2025-07-1546", "tray": "review", "candidates": [ { "answer_id": "STR-DEC-A-001", "score": 0.687751054763794, "sibling_score": 0.687751054763794, "answer_score": null, "sibling_qid": "KOC-2026-02-1698-Q002", "sibling_text": "draw 3 pt starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "STARTER-DEC-B-003", "score": 0.6178454756736755, "sibling_score": 0.6178454756736755, "answer_score": null, "sibling_qid": "KOC-2023-04-1255-Q006", "sibling_text": "dol starter 3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "DOL starter — use, current, range and limits", "cross_family": false }, { "answer_id": "SDST-A-001", "score": 0.6175341010093689, "sibling_score": 0.6175341010093689, "answer_score": 0.3486816018819809, "sibling_qid": "KOC-2024-10-1407-Q001", "sibling_text": "draw star delta starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false } ] }, { "qid": "KOC-2025-07-1550-Q003", "text": "Types of droop", "family": "Electrical - Generator & Alternator", "subtopic": "Voltage Dip / Droop", "tid": "KOC-2025-07-1550", "tray": "new", "candidates": [ { "answer_id": "AVRD-618-001", "score": 0.5867039561271667, "sibling_score": 0.5867039561271667, "answer_score": null, "sibling_qid": "KOC-2022-08-1191-Q007", "sibling_text": "avr droop", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "What is AVR droop, and why is it required?", "cross_family": false }, { "answer_id": "DROOP-001", "score": 0.5473471879959106, "sibling_score": 0.5473471879959106, "answer_score": null, "sibling_qid": "MUM-2026-09-3920-Q012", "sibling_text": "droop", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Governor / speed droop — what, why, setting and formula", "cross_family": true }, { "answer_id": "DRG-B-001", "score": 0.32552326321601865, "sibling_score": null, "answer_score": 0.32552326321601865, "sibling_qid": "", "sibling_text": "davit types gravity and luffing and what the rule actually demands gravity davit the boat runs out and lowers under its own weight the brake is the only control luffing or mechanical davit turned out by screw or gearing needs manpower or power", "sibling_family": "", "via": "answer_title", "answer_title": "Davit types — gravity and luffing, and what the rule actually demands", "cross_family": false } ] }, { "qid": "KOC-2025-07-1551-Q003", "text": "Why 6 terminals in motor", "family": "Electrical - Motors & Starters", "subtopic": "Star-Delta Starter", "tid": "KOC-2025-07-1551", "tray": "new", "candidates": [ { "answer_id": "CONT-317-003", "score": 0.6280542016029358, "sibling_score": 0.6280542016029358, "answer_score": 0.4879368841648102, "sibling_qid": "MUM-2023-03-1381-Q001", "sibling_text": "motor has gone for overhaul outside these jokers have not put d marking on d terminal after overhaul u receive the motor without marking how will u know which is for start run and normal", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Continuity to confirm terminal identity after overhaul or rewind", "cross_family": false }, { "answer_id": "SDC-002", "score": 0.6248756647109985, "sibling_score": 0.6248756647109985, "answer_score": 0.5240367203950882, "sibling_qid": "KOC-2024-01-1325-Q006", "sibling_text": "why 6 terminals in motor why 16 18 connections in alternator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "How do you identify star or delta at the terminal box, and why the terminal counts?", "cross_family": true }, { "answer_id": "IP-ENCL-001", "score": 0.5979544520378113, "sibling_score": 0.5979544520378113, "answer_score": null, "sibling_qid": "MUM-2026-04-2122-Q003", "sibling_text": "motor number of terminal", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "IP rating of motors — what the numbers mean", "cross_family": false } ] }, { "qid": "KOC-2025-07-1552-Q002", "text": "Brushless alternator, what are the windings ( main and exciter) stationary and rotating", "family": "Electrical - Generator & Alternator", "subtopic": "Brushless Alternator", "tid": "KOC-2025-07-1552", "tray": "review", "candidates": [ { "answer_id": "BRUSHALT-A-001", "score": 0.8167839050292969, "sibling_score": 0.8167839050292969, "answer_score": 0.5899688065052032, "sibling_qid": "KOL-2021-10-2502-Q002", "sibling_text": "brushless alternator where rotor exciter fitted how current going exciter to main rotor", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01 · Working principle of the brushless alternator / brushless excitation systemHigh", "cross_family": false }, { "answer_id": "BL-ALT-C-003", "score": 0.7366821765899658, "sibling_score": 0.7366821765899658, "answer_score": null, "sibling_qid": "KOL-2018-06-2202-Q002", "sibling_text": "brushless and static alternator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Compare excitation types: brushed / static / brushless", "cross_family": false }, { "answer_id": "ALT-GEN-P03-003", "score": 0.5778916865587235, "sibling_score": null, "answer_score": 0.5778916865587235, "sibling_qid": "", "sibling_text": "brushless alternator advantages and brushed vs brushless comparison brushed dc excitation reaches rotor through brushes and slip rings brushless avr feeds exciter field exciter output is rectified by rotating diodes to feed main rotor", "sibling_family": "", "via": "answer_title", "answer_title": "Brushless alternator advantages and brushed vs brushless comparison", "cross_family": false } ] }, { "qid": "KOC-2025-07-1552-Q006", "text": "Crosshead survey going on, piston removed using engine room crane, explain the procedures to check the cross head and bottom end", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Crosshead Bearing", "tid": "KOC-2025-07-1552", "tray": "review", "candidates": [ { "answer_id": "XHD-BRG-B-001", "score": 0.74083012342453, "sibling_score": 0.74083012342453, "answer_score": 0.5607829272747039, "sibling_qid": "KOL-2019-09-3272-Q003", "sibling_text": "crosshead how will u prepare for survey tell the position of piston also", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Preparing the crosshead bottom-end bearing and presenting it to the surveyor", "cross_family": false }, { "answer_id": "XHD-BRG-C-001", "score": 0.7239274382591248, "sibling_score": 0.7239274382591248, "answer_score": 0.6042107462882995, "sibling_qid": "KOC-2024-01-1824-Q001", "sibling_text": "crosshead bearing inspection piston in place", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "A. Present the crosshead bottom shell for survey, piston in place", "cross_family": false }, { "answer_id": "CXH-BRG-FINAL-1-006", "score": 0.7205646634101868, "sibling_score": 0.7205646634101868, "answer_score": null, "sibling_qid": "MUM-2024-01-2218-Q005", "sibling_text": "crosshead survey is due ce said take all clearances of crosshead and guide shoe howmany clearances will be there what position of piston when taling these readings why at this position", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead & guide-shoe clearances: how, where, how much, piston position & why", "cross_family": false } ] }, { "qid": "KOC-2025-07-1552-Q008", "text": "why is it difficult to weld on cast iron", "family": "Workshop & Welding", "subtopic": "Cast Iron Welding", "tid": "KOC-2025-07-1552", "tray": "review", "candidates": [ { "answer_id": "WELD-B-001", "score": 0.7667668461799622, "sibling_score": 0.7667668461799622, "answer_score": 0.46484329402446745, "sibling_qid": "MUM-2026-07-3727-Q007", "sibling_text": "cast iron welding difficulties", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding & crack-repair of aluminium and cast iron, including metal stitching", "cross_family": false }, { "answer_id": "LH-ELEC-006", "score": 0.45435692071914674, "sibling_score": null, "answer_score": 0.45435692071914674, "sibling_qid": "", "sibling_text": "6 how would you approach a cast iron valve repair when the examiner probes welding and low hydrogen electrodes first response replace or fit a sound same size valve a welded cast iron repair is a stop gap not equal to new if welding cast iron not a plain mild steel low hydrogen rod the high carbon makes a hard brittle cracking weld", "sibling_family": "", "via": "answer_title", "answer_title": "6. How would you approach a cast-iron valve repair when the examiner probes welding and low-hydrogen electrodes?", "cross_family": false }, { "answer_id": "MATPROP-A-011", "score": 0.43280680775642394, "sibling_score": null, "answer_score": 0.43280680775642394, "sibling_qid": "", "sibling_text": "carbon content and weldability weldability decreases as carbon content rises haz cools fast and forms hard brittle martensite with hydrogen residual stress gives cold cracking", "sibling_family": "", "via": "answer_title", "answer_title": "Carbon content and weldability", "cross_family": false } ] }, { "qid": "KOC-2025-07-1553-Q003", "text": "Ex class of induction motor", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOC-2025-07-1553", "tray": "review", "candidates": [ { "answer_id": "IND-MOT-A-001", "score": 0.6736869215965271, "sibling_score": 0.6736869215965271, "answer_score": 0.4809995710849762, "sibling_qid": "KOC-2024-02-1332-Q001", "sibling_text": "induction motor explain", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "1. Working principle of a three-phase induction motor", "cross_family": false }, { "answer_id": "IM-GEN-B-002", "score": 0.66725754737854, "sibling_score": 0.66725754737854, "answer_score": 0.4967198848724365, "sibling_qid": "MUM-2026-05-3239-Q004", "sibling_text": "type of induction motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motors onboard and types of induction motors", "cross_family": false }, { "answer_id": "IR-TEST-D-015", "score": 0.5012275576591492, "sibling_score": null, "answer_score": 0.5012275576591492, "sibling_qid": "", "sibling_text": "induction motor types and cooling the adjacent ground rotor types squirrel cage rugged brushless default aboard vs wound rotor slip ring better starting torque speed control needs brushes same stator principle the rotor is the difference", "sibling_family": "", "via": "answer_title", "answer_title": "Induction motor types and cooling — the adjacent ground", "cross_family": false } ] }, { "qid": "KOC-2025-07-1555-Q003", "text": "what is frequency", "family": "Electrical - Generator & Alternator", "subtopic": "Frequency", "tid": "KOC-2025-07-1555", "tray": "review", "candidates": [ { "answer_id": "ALT-GEN-P04-007", "score": 0.7631409168243408, "sibling_score": 0.7631409168243408, "answer_score": 0.4036005616188049, "sibling_qid": "KOC-2026-03-1729-Q004", "sibling_text": "frequency", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Frequency, poles, speed and 50/60 Hz relation", "cross_family": false }, { "answer_id": "RISK-RA-D-001", "score": 0.6519415378570557, "sibling_score": 0.6519415378570557, "answer_score": null, "sibling_qid": "KOL-2021-03-3388-Q002", "sibling_text": "what is frequency in engineering terms", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "", "cross_family": true }, { "answer_id": "VFD-INV-P02-002", "score": 0.5516571998596191, "sibling_score": 0.5516571998596191, "answer_score": 0.3870356291532516, "sibling_qid": "KOL-2017-06-2135-Q004", "sibling_text": "frequency control in im", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "How are voltage and frequency varied and controlled in a VFD?", "cross_family": true } ] }, { "qid": "KOC-2025-07-1555-Q006", "text": "ac 50 v or dc voltage which is dangerous", "family": "", "subtopic": "High Voltage System", "tid": "KOC-2025-07-1555", "tray": "new", "candidates": [ { "answer_id": "ELEC-SAFE-008", "score": 0.5845458507537842, "sibling_score": 0.5845458507537842, "answer_score": 0.5071960747241974, "sibling_qid": "KOL-2021-02-2425-Q004", "sibling_text": "minimum fatal current for ac and dc", "sibling_family": "", "via": "sibling", "answer_title": "Effects of electric shock; fatal/minimum current for AC and DC", "cross_family": false }, { "answer_id": "T038-P01-001", "score": 0.5478959083557129, "sibling_score": 0.5478959083557129, "answer_score": 0.4363039374351501, "sibling_qid": "MUM-2026-05-3285-Q003", "sibling_text": "high voltage value for dc", "sibling_family": "Electrical - High Voltage", "via": "sibling", "answer_title": "What is a marine high-voltage system, and what counts as HV onboard?", "cross_family": false }, { "answer_id": "HV-SYS-P04-001", "score": 0.5257408618927002, "sibling_score": 0.5257408618927002, "answer_score": null, "sibling_qid": "KOL-2026-07-4247-Q007", "sibling_text": "high voltage hazards", "sibling_family": "Electrical - Distribution & MSB", "via": "sibling", "answer_title": "HV-SYS-P04-001 - HV hazards, advantages and safeties", "cross_family": false } ] }, { "qid": "KOC-2025-07-1557-Q007", "text": "intrinsically safe circuit diagram", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOC-2025-07-1557", "tray": "review", "candidates": [ { "answer_id": "HAZ-EX-B-001", "score": 0.7879316210746765, "sibling_score": 0.7879316210746765, "answer_score": 0.52789705991745, "sibling_qid": "KOC-2026-08-2121-Q007", "sibling_text": "intrinsically safe circuit diagram explain", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Intrinsically safe (Ex i) equipment — what it is, how it works, where it is used, how you identify it", "cross_family": false }, { "answer_id": "ICCP-119-P01-002", "score": 0.666185200214386, "sibling_score": 0.666185200214386, "answer_score": null, "sibling_qid": "KOC-2023-08-1275-Q004", "sibling_text": "iccp circuit diagram", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP circuit / control arrangement, construction and main components", "cross_family": false }, { "answer_id": "HYDRO-001", "score": 0.4988609433174133, "sibling_score": null, "answer_score": 0.4988609433174133, "sibling_qid": "", "sibling_text": "draw and explain the hydrophore circuit diagram power and control circuits starter and safeties one motor version single duty pump three phase induction motor direct on line start small motor two circuits power heavy motor current and control the switching logic", "sibling_family": "", "via": "answer_title", "answer_title": "Draw and explain the hydrophore circuit diagram — power and control circuits, starter and safeties (one-motor version)", "cross_family": false } ] }, { "qid": "KOC-2025-07-1560-Q002", "text": "Draw and explain 3 point starter", "family": "Electrical - Motors & Starters", "subtopic": "DC Motor Three-Point Starter", "tid": "KOC-2025-07-1560", "tray": "review", "candidates": [ { "answer_id": "STR-DEC-A-001", "score": 0.759365975856781, "sibling_score": 0.759365975856781, "answer_score": null, "sibling_qid": "KOC-2026-05-2133-Q010", "sibling_text": "draw and explain 3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "STARTER-DEC-B-003", "score": 0.6062524914741516, "sibling_score": 0.6062524914741516, "answer_score": null, "sibling_qid": "KOC-2023-04-1255-Q006", "sibling_text": "dol starter 3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "DOL starter — use, current, range and limits", "cross_family": false }, { "answer_id": "SDST-A-001", "score": 0.5960819125175476, "sibling_score": 0.5960819125175476, "answer_score": 0.3654998034238815, "sibling_qid": "KOC-2024-10-1415-Q002", "sibling_text": "draw and explain star dela starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false } ] }, { "qid": "KOC-2025-07-1922-Q004", "text": "Minimum requirement for all other drill (Once in how many months?)", "family": "Surveys - Statutory", "subtopic": "Planned Maintenance / PMS", "tid": "KOC-2025-07-1922", "tray": "new", "candidates": [ { "answer_id": "DCP-PPC-003", "score": 0.5390571355819702, "sibling_score": 0.5390571355819702, "answer_score": null, "sibling_qid": "MUM-2023-11-0147-Q005", "sibling_text": "dcp checks carried out monthly six monthly", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "C3 — DCP — General Working, Advantages, Disadvantages & Common Issues", "cross_family": true }, { "answer_id": "ISM-AUD-P02-004", "score": 0.5179072618484497, "sibling_score": 0.5179072618484497, "answer_score": null, "sibling_qid": "KOC-2025-12-0773-Q009", "sibling_text": "drill schedules", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "SMS contents, manuals, documents and drill records onboard", "cross_family": true }, { "answer_id": "LB-SURV-C-005", "score": 0.5031647682189941, "sibling_score": 0.5031647682189941, "answer_score": null, "sibling_qid": "KOC-2025-12-0763-Q008", "sibling_text": "life boat check all weekly monthly yearly and 5 yearly", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Periodic servicing intervals and the authorised service provider (MSC.402(96)); 5-yearly", "cross_family": true } ] }, { "qid": "KOC-2025-07-1922-Q006", "text": "Gravity type lifeboat davit annual service requirement comes from which code, which regulation", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Lifeboat Static / Dynamic Test", "tid": "KOC-2025-07-1922", "tray": "review", "candidates": [ { "answer_id": "DRG-B-006", "score": 0.7329483032226562, "sibling_score": 0.7329483032226562, "answer_score": null, "sibling_qid": "KOL-2021-12-0583-Q005", "sibling_text": "lifeboat yearly maintenance as 2e lowering and davit and fall maintenance", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Falls — maintenance, end-for-ending and renewal", "cross_family": false }, { "answer_id": "DRG-B-013", "score": 0.7109541893005371, "sibling_score": 0.7109541893005371, "answer_score": null, "sibling_qid": "KOL-2019-08-0322-Q002", "sibling_text": "2 lifeboat davit inspection n checks after 10 20 yrs", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "The test and examination regime — and what PSC looks at", "cross_family": false }, { "answer_id": "LBT-TEST-B-002", "score": 0.707548201084137, "sibling_score": 0.707548201084137, "answer_score": 0.5680327355861664, "sibling_qid": "MUM-2025-11-0556-Q018", "sibling_text": "5 yearly testing of lifeboat davit", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Annual and 5-yearly lifeboat/davit tests (the servicing regime)", "cross_family": false } ] }, { "qid": "KOC-2025-07-1923-Q001", "text": "X head bearing", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Crosshead Bearing", "tid": "KOC-2025-07-1923", "tray": "review", "candidates": [ { "answer_id": "XHD-BRG-C-003", "score": 0.7151610255241394, "sibling_score": 0.7151610255241394, "answer_score": null, "sibling_qid": "KOL-2025-11-3877-Q001", "sibling_text": "xhead bearing clearances", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "C. Crosshead and guide-shoe clearances: how many, how measured, piston position and why", "cross_family": false }, { "answer_id": "XHD-BRG-C-001", "score": 0.7085397839546204, "sibling_score": 0.7085397839546204, "answer_score": null, "sibling_qid": "KOL-2025-11-3877-Q002", "sibling_text": "xhead bearing survey", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "A. 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Deck isolating valve, deck relief/safety devices, and cargo-tank pressure", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.6683962941169739, "sibling_score": 0.6683962941169739, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q012", "sibling_text": "draw top part of improved high lift safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.6339804530143738, "sibling_score": 0.6339804530143738, "answer_score": null, "sibling_qid": "KOC-2026-05-2142-Q008", "sibling_text": "safety valve setting in front of surveyor", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false } ] }, { "qid": "KOC-2025-07-1924-Q005", "text": "Crosshead bearing inspection with piston in place", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Crosshead Bearing", "tid": "KOC-2025-07-1924", "tray": "review", "candidates": [ { "answer_id": "XHD-BRG-C-001", "score": 0.9031328558921814, "sibling_score": 0.9031328558921814, "answer_score": null, "sibling_qid": "KOC-2024-01-1824-Q001", "sibling_text": "crosshead bearing inspection piston in place", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "A. Present the crosshead bottom shell for survey, piston in place", "cross_family": false }, { "answer_id": "XHD-BRG-C-002", "score": 0.8075360059738159, "sibling_score": 0.8075360059738159, "answer_score": null, "sibling_qid": "KOC-2024-01-1825-Q001", "sibling_text": "crosshead bearing removal with piston in place", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "B. Crosshead bearing overhaul and removal: exact steps, tackle, withdrawing the pin", "cross_family": false }, { "answer_id": "CXH-BRG-FINAL-1-001", "score": 0.7845368981361389, "sibling_score": 0.7845368981361389, "answer_score": null, "sibling_qid": "KOL-2018-05-3150-Q004", "sibling_text": "crosshead bearing inspection", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead bearing survey: open-up, removal & inspection", "cross_family": false } ] }, { "qid": "KOC-2025-07-1924-Q008", "text": "Boiler safety valve setting infront of surveyor", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2025-07-1924", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P01-001", "score": 0.8913460373878479, "sibling_score": 0.8913460373878479, "answer_score": null, "sibling_qid": "KOC-2026-08-2122-Q005", "sibling_text": "boiler safety valve setting in front of surveyor", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.7800278067588806, "sibling_score": 0.7800278067588806, "answer_score": null, "sibling_qid": "CHE-2026-04-0500-Q005", "sibling_text": "boiler safety valve setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "ECON-EGB-004", "score": 0.5899512767791748, "sibling_score": null, "answer_score": 0.5899512767791748, "sibling_qid": "", "sibling_text": "safety valve setting after overhaul why set higher than the boiler setting raise pressure under steam on a calibrated gauge adjust spring compression to lift at the approved set pressure verify re seat and blowdown two valves one at a time the other gagged lock and seal surveyor witnessed values are class approved ship specific set pressure accumulation representative limit and blowdown quote the ", "sibling_family": "", "via": "answer_title", "answer_title": "Safety-valve setting after overhaul & why set higher than the boiler", "cross_family": false } ] }, { "qid": "KOC-2025-07-1924-Q009", "text": "Improved high lift safety valve diagram (top part only)", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2025-07-1924", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.8582316040992737, "sibling_score": 0.8582316040992737, "answer_score": null, "sibling_qid": "KOC-2026-09-2173-Q003", "sibling_text": "improved high lift safety valve diagram", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "MR-DS-PV-B-006", "score": 0.7239014506340027, "sibling_score": 0.7239014506340027, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q005", "sibling_text": "full bore safety valve diagram", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "6. Deck isolating valve, deck relief/safety devices, and cargo-tank pressure", "cross_family": false }, { "answer_id": "ACSS-002", "score": 0.4787002384662628, "sibling_score": null, "answer_score": 0.4787002384662628, "sibling_qid": "", "sibling_text": "relief safety valves settings testing lifting reasons bursting disc set just above stage working pressure the class standard accumulation limit is about 10 though the exact set point is a maker sms value non isolable from its stage test to the maker s method easing gear or test rig for lifting pressure log and reset", "sibling_family": "", "via": "answer_title", "answer_title": "Relief / safety valves: settings, testing, lifting reasons; bursting disc", "cross_family": false } ] }, { "qid": "KOC-2025-07-1925-Q006", "text": "Sulzer fuel pump timing check", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Pump Timing", "tid": "KOC-2025-07-1925", "tray": "review", "candidates": [ { "answer_id": "FCL-P03-003", "score": 0.8314595818519592, "sibling_score": 0.8314595818519592, "answer_score": 0.5586956739425659, "sibling_qid": "KOC-2026-09-2180-Q017", "sibling_text": "sulzer fuel pump timing check", "sibling_family": "2-Stroke - 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Lubrication & Bearings", "subtopic": "Main Bearing", "tid": "KOC-2025-07-1925", "tray": "review", "candidates": [ { "answer_id": "MAIN-BRG-B-001", "score": 0.8570763468742371, "sibling_score": 0.8570763468742371, "answer_score": 0.5646071434020996, "sibling_qid": "KOC-2022-09-1793-Q002", "sibling_text": "me main bearing overhaul", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you open up / remove / overhaul a main-engine main bearing?", "cross_family": false }, { "answer_id": "BEB-A-001", "score": 0.5890518903732299, "sibling_score": null, "answer_score": 0.5890518903732299, "sibling_qid": "", "sibling_text": "removing overhauling inspecting and refitting the bottom end bearing", "sibling_family": "", "via": "answer_title", "answer_title": "Removing, overhauling, inspecting and refitting the bottom end bearing", "cross_family": false }, { "answer_id": "MN-BRG-C-001", "score": 0.5710454165935516, "sibling_score": null, "answer_score": 0.5710454165935516, "sibling_qid": "", "sibling_text": "opening removing and overhauling a main bearing make safe first engine stopped turning gear engaged starting air shut and locked indicator relief cocks open men working tags up lo supply secured per the maker permit procedure with the local bearing oil connection disconnected where the job requires remove the bearing cover keep slacken the bearing studs elastic long bolts in the maker s sequence w", "sibling_family": "", "via": "answer_title", "answer_title": "Opening, removing and overhauling a main bearing", "cross_family": false } ] }, { "qid": "KOC-2025-07-1925-Q008", "text": "pid controller", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Main Bearing", "tid": "KOC-2025-07-1925", "tray": "review", "candidates": [ { "answer_id": "PID-CTRL-001", "score": 0.7979992628097534, "sibling_score": 0.7979992628097534, "answer_score": 0.5753382742404938, "sibling_qid": "KOC-2026-02-2092-Q006", "sibling_text": "pid controller definition", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "What a PID controller is and how it works", "cross_family": true }, { "answer_id": "CTRL-006", "score": 0.5860841989517211, "sibling_score": null, "answer_score": 0.5860841989517211, "sibling_qid": "", "sibling_text": "types of controllers used onboard by action on off two step proportional p integral i derivative d and pi pd pid on off cycles around setpoint simple for slow tolerant loops", "sibling_family": "", "via": "answer_title", "answer_title": "Types of controllers used onboard", "cross_family": false }, { "answer_id": "GOV-P02-005", "score": 0.5756123155355454, "sibling_score": null, "answer_score": 0.5756123155355454, "sibling_qid": "", "sibling_text": "pid control loop stability detuning p correction proportional to error fast alone leaves a steady state offset droop like i integrates the error removes the offset returns to exact set speed isochronous", "sibling_family": "", "via": "answer_title", "answer_title": "PID control, loop stability & detuning", "cross_family": false } ] }, { "qid": "KOC-2025-07-1925-Q009", "text": "full bore lift safety valve", "family": "Boilers - 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Deck isolating valve, deck relief/safety devices, and cargo-tank pressure", "cross_family": false }, { "answer_id": "ACSS-002", "score": 0.5114308714866638, "sibling_score": null, "answer_score": 0.5114308714866638, "sibling_qid": "", "sibling_text": "relief safety valves settings testing lifting reasons bursting disc set just above stage working pressure the class standard accumulation limit is about 10 though the exact set point is a maker sms value non isolable from its stage test to the maker s method easing gear or test rig for lifting pressure log and reset", "sibling_family": "", "via": "answer_title", "answer_title": "Relief / safety valves: settings, testing, lifting reasons; bursting disc", "cross_family": false } ] }, { "qid": "KOC-2025-07-1925-Q012", "text": "Cascade control", "family": "Drydock & Underwater Surveys", "subtopic": "Drydock / Hull Repair / Sea Chest", "tid": "KOC-2025-07-1925", "tray": "review", "candidates": [ { "answer_id": "CTRL-001", "score": 0.6994314193725586, "sibling_score": 0.6994314193725586, "answer_score": 0.44586787223815916, "sibling_qid": "KOL-2020-11-2409-Q003", "sibling_text": "cascade control working", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Cascade control — how it works", "cross_family": true }, { "answer_id": "CTRL-TL-008", "score": 0.6792567372322083, "sibling_score": 0.6792567372322083, "answer_score": 0.44279621839523314, "sibling_qid": "KOL-2020-01-1514-Q005", "sibling_text": "cascade control", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Cascade control, the slave controller, and split-range control", "cross_family": true }, { "answer_id": "CTRL-002", "score": 0.3758249133825302, "sibling_score": null, "answer_score": 0.3758249133825302, "sibling_qid": "", "sibling_text": "cascade applied to main engine jacket cooling water temperature controlled variable me jacket water outlet temperature held near a setpoint representative exact value maker sms set cascade master on outlet temperature slave driving the three way valve", "sibling_family": "", "via": "answer_title", "answer_title": "Cascade applied to main-engine jacket cooling-water temperature", "cross_family": false } ] }, { "qid": "KOC-2025-07-1925-Q013", "text": "Cylinder relief valve diagram", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Cover / Head", "tid": "KOC-2025-07-1925", "tray": "review", "candidates": [ { "answer_id": "FFF-A-003", "score": 0.7584918737411499, "sibling_score": 0.7584918737411499, "answer_score": null, "sibling_qid": "CHE-2026-04-0170-Q001S8", "sibling_text": "cylinder relief valve construction", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fire main, hydrants, isolating and deck valves, and fire-line fittings", "cross_family": true }, { "answer_id": "SAV-001", "score": 0.7503525018692017, "sibling_score": 0.7503525018692017, "answer_score": null, "sibling_qid": "MUM-2026-03-2935-Q005", "sibling_text": "cylinder head safety valve of main engine diagram", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Construction and working of the main automatic starting air valve", "cross_family": false }, { "answer_id": "MR-DS-PV-B-006", "score": 0.7136494517326355, "sibling_score": 0.7136494517326355, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q005", "sibling_text": "full bore safety valve diagram", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "6. Deck isolating valve, deck relief/safety devices, and cargo-tank pressure", "cross_family": true } ] }, { "qid": "KOC-2025-07-1925-Q014", "text": "RT flex manoeuvring", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankcase Relief Door", "tid": "KOC-2025-07-1925", "tray": "review", "candidates": [ { "answer_id": "EICU-MAN-P02-002", "score": 0.7321813106536865, "sibling_score": 0.7321813106536865, "answer_score": 0.4202230483293533, "sibling_qid": "KOC-2025-02-1027-Q003", "sibling_text": "rt flex manoeuvring", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Manoeuvring on RT-flex, Sulzer RTA and Mitsubishi UEC", "cross_family": true }, { "answer_id": "RTFLEX-319-005", "score": 0.6567447185516357, "sibling_score": 0.6567447185516357, "answer_score": 0.32794971168041226, "sibling_qid": "KOC-2024-03-2043-Q002", "sibling_text": "rt flex manoeuvring diagram", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Manoeuvring, servo oil / exhaust timing, and exhaust-valve operation and faults", "cross_family": true }, { "answer_id": "REV-PROC-003", "score": 0.6308689117431641, "sibling_score": 0.6308689117431641, "answer_score": 0.34091041088104246, "sibling_qid": "KOL-2022-01-1652-Q003", "sibling_text": "how reversing is achieved in rt flex", "sibling_family": "2-Stroke - 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Liner / piston / manifold-bolt removal problems", "cross_family": false } ] }, { "qid": "KOC-2025-07-1929-Q011", "text": "Problems faced in those machines,purifiers,and aux engines", "family": "Purifier & Centrifuges", "subtopic": "FO/LO/DO Purifier", "tid": "KOC-2025-07-1929", "tray": "new", "candidates": [ { "answer_id": "PURIF-172-001", "score": 0.5782272815704346, "sibling_score": 0.5782272815704346, "answer_score": null, "sibling_qid": "MUM-2024-01-2217-Q008", "sibling_text": "purifier not picking up rpm after major overhaul", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Purifier not picking up speed — drive, clutch, brake, shear pin", "cross_family": false }, { "answer_id": "PURIF-172-002", "score": 0.5707486867904663, "sibling_score": 0.5707486867904663, "answer_score": null, "sibling_qid": "KOC-2025-01-1897-Q002", "sibling_text": "bunkered bad fuel and purifier getting choke every 3 hrs actions you take onboard", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Gravity disc selection, new bunker & DO changeover", "cross_family": false }, { "answer_id": "PURIF-BOWL-P02-002", "score": 0.5622406601905823, "sibling_score": 0.5622406601905823, "answer_score": null, "sibling_qid": "KOC-2025-07-1046-Q008", "sibling_text": "running purifier is unable to reach its rated rpm reasons", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Drive, rated RPM, overload, vibration / wobbling & dynamic balancing — causes and troubleshooting", "cross_family": false } ] }, { "qid": "KOC-2025-07-1929-Q012", "text": "Refrigeration system common problrms you will face onboard.what type of gauge is fitted in ref plant.what all readings can be found in the gauges and how to read the gauge in ref plant", "family": "Refrigeration & AC", "subtopic": "Refrigeration Faults / Checks", "tid": "KOC-2025-07-1929", "tray": "review", "candidates": [ { "answer_id": "AIR-REF-004", "score": 0.7510845065116882, "sibling_score": 0.7510845065116882, "answer_score": null, "sibling_qid": "KOL-2017-02-1277-Q007", "sibling_text": "air in the refrigeration system function of compound gauge how u will ensure that ur refrigeration disch pr is ok without checking the manual or chart for that gass", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "4. Detecting and purging air from a refrigeration system", "cross_family": false }, { "answer_id": "RAC-HPLP-389-004", "score": 0.7099871039390564, "sibling_score": 0.7099871039390564, "answer_score": 0.5333282351493835, "sibling_qid": "KOC-2025-11-1970-Q003", "sibling_text": "ac compressor safeties how many gauges are there", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "AC compressor safeties and number of gauges", "cross_family": false }, { "answer_id": "AIR-REF-001", "score": 0.6846656799316406, "sibling_score": 0.6846656799316406, "answer_score": null, "sibling_qid": "MUM-2026-07-3760-Q001", "sibling_text": "what are the onboard indications of air or non condensable gas ingress into a refrigeration system", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "1. Indications that air is present in a refrigeration system", "cross_family": false } ] }, { "qid": "KOC-2025-07-1931-Q002", "text": "Liner removal and inspection", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "KOC-2025-07-1931", "tray": "review", "candidates": [ { "answer_id": "CYL-LINER-P03-008", "score": 0.7751675844192505, "sibling_score": 0.7751675844192505, "answer_score": 0.3940945863723755, "sibling_qid": "KOL-2017-07-1852-Q005", "sibling_text": "liner checks after removal", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Main-engine cylinder liner removal — full procedure, the lifting tool, and precautions", "cross_family": false }, { "answer_id": "CYL-LINER-P01-003", "score": 0.7126694321632385, "sibling_score": 0.7126694321632385, "answer_score": null, "sibling_qid": "KOL-2022-08-1923-Q001", "sibling_text": "u have removed liner what all checks u will carry out routine inspections wear rate in liner", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "From the readings: wear, wear rate, units and renewal limits", "cross_family": false }, { "answer_id": "CYL-LINER-P03-007", "score": 0.6890754699707031, "sibling_score": 0.6890754699707031, "answer_score": 0.3966550916433334, "sibling_qid": "KOL-2019-07-1874-Q001", "sibling_text": "liner inspection", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Cylinder liner checks at overhaul, decarb and under-piston inspection", "cross_family": false } ] }, { "qid": "KOC-2025-07-1932-Q004", "text": "EGB safety valve how to set procedures, documentation", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2025-07-1932", "tray": "review", "candidates": [ { "answer_id": "ECON-EGB-004", "score": 0.7256235480308533, "sibling_score": 0.7256235480308533, "answer_score": 0.5086915731430054, "sibling_qid": "KOL-2026-02-3912-Q003", "sibling_text": "safety valve setting procedure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Safety-valve setting after overhaul & why set higher than the boiler", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.7036018967628479, "sibling_score": 0.7036018967628479, "answer_score": null, "sibling_qid": "KOC-2026-05-2126-Q006", "sibling_text": "egb safety valve setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.6691004633903503, "sibling_score": 0.6691004633903503, "answer_score": null, "sibling_qid": "KOC-2026-05-0034-Q010", "sibling_text": "boiler safety valve types and how safety valve is set complete procedures", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOC-2025-07-1932-Q009", "text": "Boiler overboard valve not holding what are the actions to be taken", "family": "Boilers - Construction & Components", "subtopic": "Feed Check Valve", "tid": "KOC-2025-07-1932", "tray": "review", "candidates": [ { "answer_id": "SBD-003", "score": 0.70140540599823, "sibling_score": 0.70140540599823, "answer_score": 0.5420059055089951, "sibling_qid": "KOC-2022-04-0072-Q021", "sibling_text": "boiler blowdown overboard valve leaking what what would you do", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "How is the boiler blowdown valve fitted on the ship's side and how are the blowdown valves arranged? 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The overboard blowdown valve is leaking — what do you do?", "cross_family": true }, { "answer_id": "BLR-TUBE-P02-001", "score": 0.6713588833808899, "sibling_score": 0.6713588833808899, "answer_score": null, "sibling_qid": "MUM-2024-02-2224-Q005", "sibling_text": "what are the action if the boiler tube if leaking", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Identifying a boiler tube leak and finding the leaking tube", "cross_family": false }, { "answer_id": "BLR-GG-004", "score": 0.6430297493934631, "sibling_score": 0.6430297493934631, "answer_score": null, "sibling_qid": "KOC-2022-05-1785-Q003", "sibling_text": "in boiler both gauge glass is wrong due to some reason what is your course of action just said stop the boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "How do you test or cross-blow a boiler gauge glass, and respond to wrong indication?", "cross_family": false } ] }, { "qid": "KOC-2025-07-1932-Q010", "text": "How to replace the valve at port.what is the condition of boiler while doing the work", "family": "Boilers - Construction & Components", "subtopic": "Feed Check Valve", "tid": "KOC-2025-07-1932", "tray": "new", "candidates": [ { "answer_id": "BLR-TUBE-P02-003", "score": 0.6359222531318665, "sibling_score": 0.6359222531318665, "answer_score": null, "sibling_qid": "KOL-2020-01-3311-Q003", "sibling_text": "in boiler tube how will you remove the tube and put a new new removal procedure explain and fitting a new tube procedure explain and lots of cross question", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Repairing, removing and renewing a boiler tube; Class formalities", "cross_family": false }, { "answer_id": "BLR-TUBE-P02-001", "score": 0.6327517628669739, "sibling_score": 0.6327517628669739, "answer_score": null, "sibling_qid": "KOL-2018-03-1356-Q008", "sibling_text": "exhaust valve boiler tube leaking action", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Identifying a boiler tube leak and finding the leaking tube", "cross_family": false }, { "answer_id": "ECON-EGB-002", "score": 0.6198763847351074, "sibling_score": 0.6198763847351074, "answer_score": null, "sibling_qid": "MUM-2026-03-1301-Q001S3", "sibling_text": "type of boiler boiler safety valve setting working pr of boiler location of back pressure valve function", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Purpose, efficiency, heat recovery, turn ratio, steam quality & back-pressure", "cross_family": false } ] }, { "qid": "KOC-2025-07-1933-Q002", "text": "cross head bearing overhaul piston in place", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Crosshead Bearing", "tid": "KOC-2025-07-1933", "tray": "review", "candidates": [ { "answer_id": "XHD-BRG-C-001", "score": 0.8883862495422363, "sibling_score": 0.8883862495422363, "answer_score": null, "sibling_qid": "KOC-2026-08-2122-Q001", "sibling_text": "crosshead bearing overhaul piston in place", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "A. Present the crosshead bottom shell for survey, piston in place", "cross_family": false }, { "answer_id": "XHD-BRG-C-002", "score": 0.8186025619506836, "sibling_score": 0.8186025619506836, "answer_score": 0.5535874307155609, "sibling_qid": "KOC-2023-12-1822-Q004", "sibling_text": "crosshead overhaul piston mounted", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "B. 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Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Under which regulation does the IAPP certificate come, and who issues it?", "cross_family": true } ] }, { "qid": "KOC-2025-08-0646-Q004", "text": "Which solas chapter", "family": "Surveys - Statutory", "subtopic": "CSR / Continuous Synopsis Record", "tid": "KOC-2025-08-0646", "tray": "review", "candidates": [ { "answer_id": "SOLAS-CH-015", "score": 0.7203899025917053, "sibling_score": 0.7203899025917053, "answer_score": 0.5265753388404846, "sibling_qid": "KOC-2025-01-0505-Q007", "sibling_text": "solas chapter", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS chapters overview - current count and scope", "cross_family": true }, { "answer_id": "SOLAS12-C-001", "score": 0.7192964553833008, "sibling_score": 0.7192964553833008, "answer_score": null, "sibling_qid": "KOC-2022-07-0078-Q001", "sibling_text": "solas chapter", "sibling_family": "", "via": "sibling", "answer_title": "Explain SOLAS Chapter XII for bulk carriers — oral-exam overview", "cross_family": false }, { "answer_id": "SOLAS-OVW-009", "score": 0.7016241550445557, "sibling_score": 0.7016241550445557, "answer_score": null, "sibling_qid": "MUM-2026-07-3798-Q006", "sibling_text": "chapter 9 solas", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "SOLAS Chapter IX — ISM Code (safe operation)", "cross_family": true } ] }, { "qid": "KOC-2025-08-0646-Q011", "text": "Container ship cargo coming under which MARPOL annex", "family": "Other Conventions", "subtopic": "IMDG Code", "tid": "KOC-2025-08-0646", "tray": "review", "candidates": [ { "answer_id": "MARPOL-OV-003", "score": 0.7099018096923828, "sibling_score": 0.7099018096923828, "answer_score": null, "sibling_qid": "MUM-2026-09-3916-Q003", "sibling_text": "marpol annexes all", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "General overview of MARPOL and all annexes", "cross_family": true }, { "answer_id": "IMDG-013", "score": 0.7049728035926819, "sibling_score": 0.7049728035926819, "answer_score": 0.668381804227829, "sibling_qid": "CHE-2025-08-0016-Q008", "sibling_text": "what all annex comes under container", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Which annexes apply to a container ship?", "cross_family": false }, { "answer_id": "MARPOL-OV-002", "score": 0.6957434415817261, "sibling_score": 0.6957434415817261, "answer_score": null, "sibling_qid": "KOC-2026-03-0853-Q007", "sibling_text": "marpol annex", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "The six annexes and what each covers", "cross_family": true } ] }, { "qid": "KOC-2025-08-0646-Q014", "text": "MSDS", "family": "Other Conventions", "subtopic": "Chemical Label and Hazard Class", "tid": "KOC-2025-08-0646", "tray": "review", "candidates": [ { "answer_id": "TNK-SAFE-BF26-005", "score": 0.6868100166320801, "sibling_score": 0.6868100166320801, "answer_score": 0.5113930761814117, "sibling_qid": "KOC-2024-07-0356-Q010", "sibling_text": "msds contents", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What are the contents of an MSDS, and what product information does it give?", "cross_family": true }, { "answer_id": "MSB-ESB-E-001", "score": 0.5711740255355835, "sibling_score": 0.5711740255355835, "answer_score": null, "sibling_qid": "KOC-2023-12-1308-Q001", "sibling_text": "msbd safeties", "sibling_family": "", "via": "sibling", "answer_title": "What safeties, protection trips, relays and alarms are provided on the MSB / ESB, and how are they tested?", "cross_family": false }, { "answer_id": "MSB-ESB-D-001", "score": 0.5460675954818726, "sibling_score": 0.5460675954818726, "answer_score": null, "sibling_qid": "MUM-2022-09-1353-Q001", "sibling_text": "msb safties", "sibling_family": "", "via": "sibling", "answer_title": "Main & emergency switchboards: function, construction & ship power distribution", "cross_family": false } ] }, { "qid": "KOC-2025-08-0648-Q001", "text": "Stern frame draw & explain", "family": "Ship Construction & Stability", "subtopic": "Stern Frame / Transom", "tid": "KOC-2025-08-0648", "tray": "new", "candidates": [ { "answer_id": "SPR-STERN-002", "score": 0.630551815032959, "sibling_score": 0.630551815032959, "answer_score": null, "sibling_qid": "KOC-2022-08-0083-Q001", "sibling_text": "draw stern frame show arrangement how stern tube is supported on fwd area of stern frame", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Propeller draw & dry-dock blade repair", "cross_family": true }, { "answer_id": "DUS-P5-03", "score": 0.5774519443511963, "sibling_score": 0.5774519443511963, "answer_score": 0.4234584480524063, "sibling_qid": "KOC-2021-07-0010-Q005", "sibling_text": "stern frame diagram", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Stern frame construction, cross-section and rudder-axis sketch", "cross_family": true }, { "answer_id": "KGF-A-002", "score": 0.5542980432510376, "sibling_score": 0.5542980432510376, "answer_score": null, "sibling_qid": "KOL-2025-09-1066-Q011", "sibling_text": "what is frame frame spacing and location to draw", "sibling_family": "", "via": "sibling", "answer_title": "Frame numbering, spacing & identification", "cross_family": false } ] }, { "qid": "KOC-2025-08-0648-Q002", "text": "IMDG code", "family": "Other Conventions", "subtopic": "IMDG Code", "tid": "KOC-2025-08-0648", "tray": "review", "candidates": [ { "answer_id": "IMDG-001", "score": 0.7857984900474548, "sibling_score": 0.7857984900474548, "answer_score": 0.31006528735160827, "sibling_qid": "KOC-2023-08-0212-Q007", "sibling_text": "imdg code content", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is the IMDG Code? Its contents, parts and supplements", "cross_family": false }, { "answer_id": "IMDG-002", "score": 0.7320113778114319, "sibling_score": 0.7320113778114319, "answer_score": 0.3025446802377701, "sibling_qid": "KOC-2025-07-0619-Q002", "sibling_text": "imdg code classes", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What are the classes and categories of cargo under the IMDG Code? Explain all nine", "cross_family": false }, { "answer_id": "IMO-CODES-P03-001", "score": 0.3295431435108185, "sibling_score": null, "answer_score": 0.3295431435108185, "sibling_qid": "", "sibling_text": "important imo conventions and codes parent links", "sibling_family": "", "via": "answer_title", "answer_title": "Important IMO conventions and codes: parent links", "cross_family": false } ] }, { "qid": "KOC-2025-08-1048-Q004", "text": "Explain IGG system on LPG tankers ( my type of vsl : LPG tankers)", "family": "Cargo Ops - Tankers", "subtopic": "IG System", "tid": "KOC-2025-08-1048", "tray": "review", "candidates": [ { "answer_id": "COT-P02-01", "score": 0.6755666136741638, "sibling_score": 0.6755666136741638, "answer_score": null, "sibling_qid": "KOC-2025-05-0599-Q009", "sibling_text": "explain ig system in tankers", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Draw and explain the complete tanker inert-gas system from gas production to the cargo tanks, identifying the main plant, control and deck components.", "cross_family": false }, { "answer_id": "FLD-601-001", "score": 0.63112473487854, "sibling_score": 0.63112473487854, "answer_score": null, "sibling_qid": "KOL-2020-01-0379-Q002", "sibling_text": "purpose of ig in tanker", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Draw and explain the hydrocarbon flammability diagram. What is its purpose and functional requirement, why is the line tapered, and how do you mark a point on it?", "cross_family": false }, { "answer_id": "IGAT-583-004", "score": 0.6195279955863953, "sibling_score": 0.6195279955863953, "answer_score": null, "sibling_qid": "MUM-2022-10-2698-Q002", "sibling_text": "igs system what type of system you have worked on igs or igg igs describe its safety s o2 level to maintain in line in tanks procedure to follow if igs failures occurs can vessel proceed with cargo disc if igs failure is irreparable can vessel remain without igs if its classed to have an igs on board", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "As Second Engineer, what actions do you take if the inert gas plant of a crude oil tanker is repeatedly tripping on IG high temperature?", "cross_family": false } ] }, { "qid": "KOC-2025-08-1048-Q007", "text": "L O test carried out onboard and their procedures 6", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "LO Test / Analysis", "tid": "KOC-2025-08-1048", "tray": "review", "candidates": [ { "answer_id": "LO-TEST-P01-001", "score": 0.660188615322113, "sibling_score": 0.660188615322113, "answer_score": null, "sibling_qid": "KOC-2026-05-0009-Q011", "sibling_text": "onboard lo tests explain", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Onboard lube-oil tests and the viscosity test", "cross_family": false }, { "answer_id": "OIL-FUEL-TEST-001", "score": 0.5952426791191101, "sibling_score": 0.5952426791191101, "answer_score": 0.40535031706094743, "sibling_qid": "MUM-2026-06-3536-Q005", "sibling_text": "lub oil tests onboard", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What lube-oil tests are carried out onboard ship?", "cross_family": false }, { "answer_id": "LO-TEST-P01-003", "score": 0.5879318118095398, "sibling_score": 0.5879318118095398, "answer_score": null, "sibling_qid": "KOC-2024-01-1829-Q003", "sibling_text": "lube oil analysis all test done onboard just names shore testing i said about spectroscopy he asked any other method what is ftir just the explanation how do you test flast point onboard and proceedure equipment name", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Reading a shore analysis report: metals, FTIR and red flags", "cross_family": false } ] }, { "qid": "KOC-2025-08-1048-Q008", "text": "Crosshead brg clearance measurement procedure", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Crosshead Bearing", "tid": "KOC-2025-08-1048", "tray": "review", "candidates": [ { "answer_id": "XHEAD-303-005", "score": 0.7048642635345459, "sibling_score": 0.7048642635345459, "answer_score": 0.5540586560964584, "sibling_qid": "MUM-2026-06-3620-Q007", "sibling_text": "cross head clearance how to take", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead guide and shoe clearances: how and where taken, limits", "cross_family": false }, { "answer_id": "XHD-BRG-B-004", "score": 0.702179491519928, "sibling_score": 0.702179491519928, "answer_score": 0.5291655331850051, "sibling_qid": "KOC-2026-08-2161-Q006", "sibling_text": "procedure for taking cross head bearing clearance", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Measuring crosshead bearing and guide-shoe clearances", "cross_family": false }, { "answer_id": "CXH-BRG-FINAL-1-006", "score": 0.6928920149803162, "sibling_score": 0.6928920149803162, "answer_score": 0.5100994735956191, "sibling_qid": "KOC-2026-08-2103-Q005", "sibling_text": "cross head clearance how and where to measure", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead & guide-shoe clearances: how, where, how much, piston position & why", "cross_family": false } ] }, { "qid": "KOC-2025-08-1048-Q011", "text": "Why cast iron welding is difficult", "family": "Workshop & Welding", "subtopic": "Cast Iron Welding", "tid": "KOC-2025-08-1048", "tray": "review", "candidates": [ { "answer_id": "WELD-B-001", "score": 0.8044147491455078, "sibling_score": 0.8044147491455078, "answer_score": 0.4837719023227692, "sibling_qid": "MUM-2026-07-3727-Q007", "sibling_text": "cast iron welding difficulties", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding & crack-repair of aluminium and cast iron, including metal stitching", "cross_family": false }, { "answer_id": "LH-ELEC-006", "score": 0.47030643820762635, "sibling_score": null, "answer_score": 0.47030643820762635, "sibling_qid": "", "sibling_text": "6 how would you approach a cast iron valve repair when the examiner probes welding and low hydrogen electrodes first response replace or fit a sound same size valve a welded cast iron repair is a stop gap not equal to new if welding cast iron not a plain mild steel low hydrogen rod the high carbon makes a hard brittle cracking weld", "sibling_family": "", "via": "answer_title", "answer_title": "6. How would you approach a cast-iron valve repair when the examiner probes welding and low-hydrogen electrodes?", "cross_family": false }, { "answer_id": "METAL-LOCK-001", "score": 0.452079576253891, "sibling_score": null, "answer_score": 0.452079576253891, "sibling_qid": "", "sibling_text": "what is metal locking stitching why use it materials benefits cold process zero heat applied at any stage for brittle cast iron and other castings where welding risks further cracking or a brittle heat affected zone", "sibling_family": "", "via": "answer_title", "answer_title": "What is metal locking / stitching, why use it, materials & benefits", "cross_family": false } ] }, { "qid": "KOC-2025-08-1049-Q001", "text": "Details about type of ship and engine", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "KOC-2025-08-1049", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P01-001", "score": 0.8363536596298218, "sibling_score": 0.8363536596298218, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q001", "sibling_text": "type of ship sailed and engines details", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.8131545186042786, "sibling_score": 0.8131545186042786, "answer_score": null, "sibling_qid": "CHE-2026-04-0373-Q001S6", "sibling_text": "type of ship specification of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "AC-VE-001", "score": 0.7558603286743164, "sibling_score": 0.7558603286743164, "answer_score": null, "sibling_qid": "MUM-2026-01-2904-Q001", "sibling_text": "what type of ship engine power and nomenclature", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Volumetric efficiency: define it, and if it drops how do you improve it (with bumping clearance)?", "cross_family": false } ] }, { "qid": "KOC-2025-08-1049-Q011", "text": "Why preheating", "family": "2-Stroke - Operations & Casualty", "subtopic": "Jacket Water High Temp", "tid": "KOC-2025-08-1049", "tray": "new", "candidates": [ { "answer_id": "EGTP-P02-008", "score": 0.5015721321105957, "sibling_score": 0.5015721321105957, "answer_score": null, "sibling_qid": "CHE-2025-11-0454-Q002", "sibling_text": "procedure for preheating main engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "General Engine Theory — Operating Envelope", "cross_family": true }, { "answer_id": "BLR-OPS-006", "score": 0.4894116222858429, "sibling_score": 0.4894116222858429, "answer_score": 0.40884911864995954, "sibling_qid": "MUM-2023-09-1061-Q002", "sibling_text": "warming up of boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Explain the warming up of a boiler.", "cross_family": true }, { "answer_id": "REF-SCSH-002", "score": 0.4877761900424957, "sibling_score": 0.4877761900424957, "answer_score": null, "sibling_qid": "KOL-2021-03-1580-Q003", "sibling_text": "what is superheat why is it required", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Superheat in refrigeration — purpose, adjustment, importance and confirming suction superheat", "cross_family": true } ] }, { "qid": "KOC-2025-08-1050-Q003", "text": "cross head bearing cross section and explain", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Crosshead Bearing", "tid": "KOC-2025-08-1050", "tray": "review", "candidates": [ { "answer_id": "XHD-BRG-C-005", "score": 0.683046281337738, "sibling_score": 0.683046281337738, "answer_score": 0.4804380118846893, "sibling_qid": "CHE-2026-05-0609-Q012", "sibling_text": "cross head advantage tri metal bearing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "E. Crosshead bearing design specialities: load max/min position, large pin, oil grooves, why no separate pump", "cross_family": false }, { "answer_id": "XHD-BRG-C-002", "score": 0.6743517518043518, "sibling_score": 0.6743517518043518, "answer_score": 0.4647958219051361, "sibling_qid": "KOC-2023-05-1814-Q001", "sibling_text": "crosshead bearing o h", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "B. Crosshead bearing overhaul and removal: exact steps, tackle, withdrawing the pin", "cross_family": false }, { "answer_id": "CXH-BRG-FINAL-1-006", "score": 0.6730974316596985, "sibling_score": 0.6730974316596985, "answer_score": null, "sibling_qid": "CHE-2026-02-0334-Q001", "sibling_text": "cross head bearing type clearance", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead & guide-shoe clearances: how, where, how much, piston position & why", "cross_family": false } ] }, { "qid": "KOC-2025-08-1050-Q005", "text": "Anti polishing ring", "family": "2-Stroke - Components (Other)", "subtopic": "Piston Rings", "tid": "KOC-2025-08-1050", "tray": "review", "candidates": [ { "answer_id": "CYL-LINER-P04-005", "score": 0.8076930046081543, "sibling_score": 0.8076930046081543, "answer_score": 0.47546468675136566, "sibling_qid": "MUM-2026-07-3806-Q002", "sibling_text": "anti polishing ring", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Anti-polishing / flame / fire ring — location, purpose, material", "cross_family": false }, { "answer_id": "CYL-LINER-P02-008", "score": 0.7541232705116272, "sibling_score": 0.7541232705116272, "answer_score": 0.4838398933410644, "sibling_qid": "KOL-2018-04-1367-Q002", "sibling_text": "1 anti polishing ring", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L8 · T044-PART_02-G008High", "cross_family": false }, { "answer_id": "CYL-LINER-P02-009", "score": 0.42728509604930875, "sibling_score": null, "answer_score": 0.42728509604930875, "sibling_qid": "", "sibling_text": "l9 t044 part 02 g009high definition an unworn raised step or ledge in the bore at the top and sometimes bottom limit of ring travel cause the ring does not sweep the extreme top so metal above the top ring reversal point stays unworn while the swept band below wears leaving a ridge worse with heavy wear lower down", "sibling_family": "", "via": "answer_title", "answer_title": "L9 · T044-PART_02-G009High", "cross_family": false } ] }, { "qid": "KOC-2025-08-1050-Q006", "text": "any m/e parts survey did you face during your service.if so explain what and how did you face the survey", "family": "Surveys - Statutory", "subtopic": "Sample Preparation - Main Engine Survey", "tid": "KOC-2025-08-1050", "tray": "new", "candidates": [ { "answer_id": "PSC-RO-P02-002", "score": 0.48525822162628174, "sibling_score": 0.48525822162628174, "answer_score": null, "sibling_qid": "KOL-2020-06-0411-Q005", "sibling_text": "recognised organization by god s grace i passed but honestly it was very difficult to understand what surveyor is saying from across the long table with face mask and shield", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "How does PSC work with the flag State, RO, CIC and MoU frameworks?", "cross_family": false }, { "answer_id": "ELEC-SURV-007", "score": 0.4778726100921631, "sibling_score": 0.4778726100921631, "answer_score": null, "sibling_qid": "KOC-2025-12-1667-Q006", "sibling_text": "what all surveys you ll carry out in dd i talked about the alternator survey msb survey insulation resistance navigation light survey but was expecting more so i just started to explain each", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Main switchboard survey & ACB testing", "cross_family": false }, { "answer_id": "XFMR-THY-E-004", "score": 0.46154168248176575, "sibling_score": 0.46154168248176575, "answer_score": null, "sibling_qid": "MUM-2026-02-1969-Q013", "sibling_text": "what is humming of the transformer cross questions surveyor was good and was listening for answers told me to wait in lobby after 30 mins internal asked how was your oral i said good then internal started his set of questions", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Humming and magnetostriction", "cross_family": true } ] }, { "qid": "KOC-2025-08-1050-Q007", "text": "L. O analysis report contents with it's values(rough)", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "LO Test / Analysis", "tid": "KOC-2025-08-1050", "tray": "review", "candidates": [ { "answer_id": "LO-TEST-P01-003", "score": 0.6927348971366882, "sibling_score": 0.6927348971366882, "answer_score": 0.3532140240073204, "sibling_qid": "KOC-2023-01-1806-Q008", "sibling_text": "lo analysis report", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Reading a shore analysis report: metals, FTIR and red flags", "cross_family": false }, { "answer_id": "FQCC-583-A-005", "score": 0.5319115519523621, "sibling_score": 0.5319115519523621, "answer_score": 0.32728099822998047, "sibling_qid": "CHE-2026-05-0579-Q003", "sibling_text": "ae lo report what all things u will check and in fuel oil content check on which parameter u can find it", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "The bunker / fuel oil analysis report — what is checked and who says so", "cross_family": false }, { "answer_id": "LO-TEST-P01-002", "score": 0.5251644253730774, "sibling_score": 0.5251644253730774, "answer_score": null, "sibling_qid": "MUM-2022-08-2139-Q018", "sibling_text": "which all samples you send for lo analysis", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Taking the sample: where, how and how often", "cross_family": false } ] }, { "qid": "KOC-2025-08-1562-Q004", "text": "Draw fuel transfer pump circuit", "family": "Electrical - Motors & Starters", "subtopic": "Starter Panel / Control Circuit", "tid": "KOC-2025-08-1562", "tray": "new", "candidates": [ { "answer_id": "FP-OVHL-002", "score": 0.6341320872306824, "sibling_score": 0.6341320872306824, "answer_score": null, "sibling_qid": "KOL-2019-08-1474-Q004", "sibling_text": "made outline of fuel pump and asked to identify and mark all tha components", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel-pump components, clearances and markings", "cross_family": true }, { "answer_id": "FIRE-P01-01", "score": 0.6265096068382263, "sibling_score": 0.6265096068382263, "answer_score": null, "sibling_qid": "KOC-2021-11-0034-Q005", "sibling_text": "he want drawing with control cabinet ie dotted line represnting start signal of pump emergency source of supply just keep talking abt the sytem", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist / water-mist system — draw and explain the machinery-space arrangement and normal working", "cross_family": true }, { "answer_id": "WIND-CRN-P01-002", "score": 0.6245183348655701, "sibling_score": 0.6245183348655701, "answer_score": null, "sibling_qid": "KOC-2024-12-1445-Q004", "sibling_text": "draw crane circuit diagram", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Crane motor power & control circuit (draw and explain)", "cross_family": false } ] }, { "qid": "KOC-2025-08-1562-Q009", "text": "How to order engine room sea water pump motor?", "family": "Electrical - Motors & Starters", "subtopic": "Motor Specification / Ordering", "tid": "KOC-2025-08-1562", "tray": "review", "candidates": [ { "answer_id": "IP-ENCL-002", "score": 0.8160473704338074, "sibling_score": 0.8160473704338074, "answer_score": null, "sibling_qid": "KOC-2026-01-1692-Q005", "sibling_text": "how to order main sea water pump motor and ip and class", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Suitable IP rating by location — ER, deck, pump, generator", "cross_family": false }, { "answer_id": "IP-ENCL-001", "score": 0.7125704884529114, "sibling_score": 0.7125704884529114, "answer_score": null, "sibling_qid": "KOC-2025-02-1497-Q002", "sibling_text": "how to order a s w pump motor asked about ip rating", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "IP rating of motors — what the numbers mean", "cross_family": false }, { "answer_id": "BRG-NOM-001", "score": 0.7033095359802246, "sibling_score": 0.7033095359802246, "answer_score": null, "sibling_qid": "KOC-2026-03-1720-Q003", "sibling_text": "how to order a motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Bearing Numbers, Suffixes and What to State When Ordering", "cross_family": false } ] }, { "qid": "KOC-2025-08-1563-Q007", "text": "Motor rating", "family": "Electrical - Motors & Starters", "subtopic": "Motor Specification / Ordering", "tid": "KOC-2025-08-1563", "tray": "review", "candidates": [ { "answer_id": "BOW-THR-003", "score": 0.8296893835067749, "sibling_score": 0.8296893835067749, "answer_score": null, "sibling_qid": "CHE-2026-02-0341-Q008", "sibling_text": "rating of the motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Bow-thruster motor — type, supply voltage, starter, connection and VFD control", "cross_family": false }, { "answer_id": "IRT-C-006", "score": 0.6893323659896851, "sibling_score": 0.6893323659896851, "answer_score": null, "sibling_qid": "MUM-2023-04-1384-Q003", "sibling_text": "ir value of motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Acceptable IR values, the minimum & \"what if it's low\"", "cross_family": false }, { "answer_id": "DCMOT-A-001", "score": 0.6843284964561462, "sibling_score": 0.6843284964561462, "answer_score": null, "sibling_qid": "KOL-2017-12-2164-Q002", "sibling_text": "universal motor up to what rating they can b used", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types, characteristics and shipboard use of DC motors", "cross_family": false } ] }, { "qid": "KOC-2025-08-1563-Q008", "text": "Bridge equipment’s", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "KOC-2025-08-1563", "tray": "new", "candidates": [ { "answer_id": "LSA-CODE-BF044-002", "score": 0.6173180341720581, "sibling_score": 0.6173180341720581, "answer_score": null, "sibling_qid": "KOL-2022-03-0612-Q005", "sibling_text": "safety equipment on bridge according to lsa", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What life-saving equipment does the LSA Code / SOLAS Chapter III require on or near the bridge?", "cross_family": true }, { "answer_id": "VOLT-SYS-008", "score": 0.6079980134963989, "sibling_score": 0.6079980134963989, "answer_score": null, "sibling_qid": "KOL-2022-07-2582-Q004", "sibling_text": "equipments on bridge supply voltage", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Why standard shipboard voltages: 440, 230/220, 110 and 24", "cross_family": true }, { "answer_id": "TLM-218-001", "score": 0.5675178170204163, "sibling_score": 0.5675178170204163, "answer_score": null, "sibling_qid": "KOL-2018-03-1362-Q004", "sibling_text": "s g operation when movement given from bridge", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Helm order from bridge to rudder — the full sequence", "cross_family": true } ] }, { "qid": "KOC-2025-08-1563-Q011", "text": "Service factor", "family": "Electrical - Motors & Starters", "subtopic": "Motor Specification / Ordering", "tid": "KOC-2025-08-1563", "tray": "new", "candidates": [ { "answer_id": "IMSP-007", "score": 0.5267953872680664, "sibling_score": 0.5267953872680664, "answer_score": null, "sibling_qid": "MUM-2026-03-1997-Q006", "sibling_text": "safety factor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What safeties and protections are provided in an induction motor and its starter — overload, short-circuit, thermal? What about a motor on deck, and large three-phase motors?", "cross_family": false }, { "answer_id": "MSB-ESB-B-001", "score": 0.49410098791122437, "sibling_score": 0.49410098791122437, "answer_score": null, "sibling_qid": "KOC-2023-11-1302-Q003", "sibling_text": "msb service", "sibling_family": "", "via": "sibling", "answer_title": "Routine maintenance & health check of the MSB", "cross_family": false }, { "answer_id": "FLP-142-P02-004", "score": 0.489149808883667, "sibling_score": 0.489149808883667, "answer_score": null, "sibling_qid": "KOL-2024-02-0817-Q004", "sibling_text": "factor of subdivision gope", "sibling_family": "", "via": "sibling", "answer_title": "Factor of subdivision — what it is", "cross_family": false } ] }, { "qid": "KOC-2025-08-1563-Q013", "text": "Why 6terminal in motor", "family": "Electrical - Motors & Starters", "subtopic": "Star-Delta Starter", "tid": "KOC-2025-08-1563", "tray": "new", "candidates": [ { "answer_id": "CONT-317-003", "score": 0.6288989186286926, "sibling_score": 0.6288989186286926, "answer_score": 0.47674248218536375, "sibling_qid": "MUM-2023-03-1381-Q001", "sibling_text": "motor has gone for overhaul outside these jokers have not put d marking on d terminal after overhaul u receive the motor without marking how will u know which is for start run and normal", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Continuity to confirm terminal identity after overhaul or rewind", "cross_family": false }, { "answer_id": "SDC-002", "score": 0.6213997602462769, "sibling_score": 0.6213997602462769, "answer_score": 0.5084240674972534, "sibling_qid": "KOC-2024-01-1325-Q006", "sibling_text": "why 6 terminals in motor why 16 18 connections in alternator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "How do you identify star or delta at the terminal box, and why the terminal counts?", "cross_family": true }, { "answer_id": "IP-ENCL-001", "score": 0.6035553812980652, "sibling_score": 0.6035553812980652, "answer_score": null, "sibling_qid": "MUM-2026-04-2122-Q003", "sibling_text": "motor number of terminal", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "IP rating of motors — what the numbers mean", "cross_family": false } ] }, { "qid": "KOC-2025-08-1564-Q001", "text": "4E started standby gen to take on load. He said Voltage is zero. All meters are recently calibrated. So no issue there. What are the reasons for no voltage?2. How will you flash the alternator?", "family": "Electrical - Generator & Alternator", "subtopic": "Residual Magnetism / Flashing", "tid": "KOC-2025-08-1564", "tray": "review", "candidates": [ { "answer_id": "NO-VOLT-004", "score": 0.796241283416748, "sibling_score": 0.796241283416748, "answer_score": 0.563623097538948, "sibling_qid": "MUM-2025-09-1662-Q001", "sibling_text": "4e started standby gen to take on load he said voltage is zero all meters are recently calibrated so no issue there what are the reasons for no voltage", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "The generator is turning, the voltmeter reads zero, and the meters were recently calibrated — how do you investigate, and how do you remove and test the voltmeter?", "cross_family": false }, { "answer_id": "NO-VOLT-001", "score": 0.7720240950584412, "sibling_score": 0.7720240950584412, "answer_score": 0.6309361815452575, "sibling_qid": "MUM-2026-02-1981-Q002", "sibling_text": "alternator started no voltage", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "The 3/E reports the generator has started but no voltage is showing — reasons, and your actions as 2/E", "cross_family": false }, { "answer_id": "RES-MAG-002", "score": 0.7489890456199646, "sibling_score": 0.7489890456199646, "answer_score": 0.569937801361084, "sibling_qid": "MUM-2026-01-1860-Q001S4", "sibling_text": "alternator not developing voltage cross flashing up", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Generator started but no voltage developing — reasons, and your action as Second Engineer", "cross_family": false } ] }, { "qid": "KOC-2025-08-1567-Q004", "text": "Why 3 phase", "family": "Electrical - Electronics & Power Conversion", "subtopic": "RMS Value", "tid": "KOC-2025-08-1567", "tray": "new", "candidates": [ { "answer_id": "XFMR-THY-G-005", "score": 0.586691677570343, "sibling_score": 0.586691677570343, "answer_score": null, "sibling_qid": "KOL-2019-07-2304-Q003", "sibling_text": "3 single phase transformer one 3 phase transformer are there which one will you choose why", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "5. Single-phase, three-phase, ship and shore transformers", "cross_family": false }, { "answer_id": "VOLT-SYS-003", "score": 0.5848498344421387, "sibling_score": 0.5848498344421387, "answer_score": 0.46736266016960143, "sibling_qid": "MUM-2025-09-1644-Q005", "sibling_text": "advantages of 3 phase 3 wire", "sibling_family": "Electrical - Distribution & MSB", "via": "sibling", "answer_title": "Three-phase three-wire versus four-wire, and why ships use three-wire", "cross_family": true }, { "answer_id": "EARTH-NER-A-004", "score": 0.56780606508255, "sibling_score": 0.56780606508255, "answer_score": 0.4435204595327377, "sibling_qid": "KOL-2016-11-2088-Q002", "sibling_text": "benefits of 3phase 3wire system", "sibling_family": "", "via": "sibling", "answer_title": "Three-phase three-wire vs four-wire — and why the fourth wire", "cross_family": false } ] }, { "qid": "KOC-2025-08-1567-Q005", "text": "What evolution happens due to the introduction of AC", "family": "Electrical - Electronics & Power Conversion", "subtopic": "RMS Value", "tid": "KOC-2025-08-1567", "tray": "new", "candidates": [ { "answer_id": "RMS-VAL-001", "score": 0.5566418766975403, "sibling_score": 0.5566418766975403, "answer_score": null, "sibling_qid": "KOC-2025-09-1577-Q007", "sibling_text": "evolution of ac system", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "RMS value and its significance", "cross_family": false }, { "answer_id": "VOLT-SYS-007", "score": 0.40151476860046387, "sibling_score": 0.40151476860046387, "answer_score": 0.25754250437021253, "sibling_qid": "MUM-2025-05-1516-Q002", "sibling_text": "ac characteristics", "sibling_family": "Electrical - Distribution & MSB", "via": "sibling", "answer_title": "AC characteristics and basic AC circuit components", "cross_family": true }, { "answer_id": "ALT-GEN-P04-005", "score": 0.39686015248298645, "sibling_score": 0.39686015248298645, "answer_score": 0.2160755828022957, "sibling_qid": "KOC-2024-06-1364-Q002", "sibling_text": "advantages of ac", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "AC generator versus DC generator, and why ship supply is AC", "cross_family": true } ] }, { "qid": "KOC-2025-08-1567-Q007", "text": "How many wire in your ship used for motors", "family": "Electrical - Motors & Starters", "subtopic": "Star-Delta Starter", "tid": "KOC-2025-08-1567", "tray": "new", "candidates": [ { "answer_id": "IM-GEN-B-001", "score": 0.6143068671226501, "sibling_score": 0.6143068671226501, "answer_score": null, "sibling_qid": "MUM-2022-03-1326-Q011", "sibling_text": "single phase motors onboard", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Single-phase induction motor working, starting and capacitor purpose", "cross_family": false }, { "answer_id": "MIP-264-007", "score": 0.5931649208068848, "sibling_score": 0.5931649208068848, "answer_score": null, "sibling_qid": "KOL-2022-06-1691-Q001", "sibling_text": "6 motor mep", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Fragmentary 'Motor & MEP' prompt (declared interpretation)", "cross_family": true }, { "answer_id": "IRT-A-008", "score": 0.5841962099075317, "sibling_score": 0.5841962099075317, "answer_score": null, "sibling_qid": "KOL-2018-12-2250-Q003", "sibling_text": "3 diff b w shore motor n ship motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Motor back from the shore workshop - checks before it runs", "cross_family": false } ] }, { "qid": "KOC-2025-08-1570-Q012", "text": "Safeties to consider in using both", "family": "Cargo Ops - Gas Carriers", "subtopic": "IGC / Gas Carrier Safety", "tid": "KOC-2025-08-1570", "tray": "new", "candidates": [ { "answer_id": "REEF-SAFE-001", "score": 0.5267899632453918, "sibling_score": 0.5267899632453918, "answer_score": null, "sibling_qid": "MUM-2026-03-1306-Q024", "sibling_text": "refer safeties", "sibling_family": "Safety Management & Emergency", "via": "sibling", "answer_title": "Refrigeration plant and reefer-room safeties — what protects the machinery, and what protects the man?", "cross_family": true }, { "answer_id": "HV-SYS-P05-001", "score": 0.5024497509002686, "sibling_score": 0.5024497509002686, "answer_score": null, "sibling_qid": "KOL-2021-02-2423-Q003", "sibling_text": "hv additional safeties", "sibling_family": "", "via": "sibling", "answer_title": "HV switchboard (MSB): safeties, interlocks and protective features", "cross_family": false }, { "answer_id": "MSB-ESB-E-001", "score": 0.5005787014961243, "sibling_score": 0.5005787014961243, "answer_score": null, "sibling_qid": "KOC-2025-07-0633-Q035", "sibling_text": "safeties in msb", "sibling_family": "", "via": "sibling", "answer_title": "What safeties, protection trips, relays and alarms are provided on the MSB / ESB, and how are they tested?", "cross_family": false } ] }, { "qid": "KOC-2025-08-1571-Q006", "text": "6 terminals in motor", "family": "Electrical - 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What is carryover?", "cross_family": true }, { "answer_id": "BLR-TUBE-P02-004", "score": 0.6216719746589661, "sibling_score": 0.6216719746589661, "answer_score": 0.5287614375352859, "sibling_qid": "MUM-2026-03-2634-Q002", "sibling_text": "oil in cascade tank what to do and how to find which boiler tube leaking", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Oil in the cascade/hotwell: tracing the leaking element", "cross_family": true }, { "answer_id": "BCFS-001", "score": 0.6151299476623535, "sibling_score": 0.6151299476623535, "answer_score": 0.54198959171772, "sibling_qid": "KOL-2018-01-3118-Q003", "sibling_text": "as a 2 e what instructions would you give to a new j e for an overnight watch if oil is found in cascade tank", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Detecting and responding to oil contamination in the hot well or cascade tank", "cross_family": true } ] }, { "qid": "KOC-2025-08-2069-Q009", "text": "Type of generator", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator / Generator", "tid": "KOC-2025-08-2069", "tray": "review", "candidates": [ { "answer_id": "ALT-GEN-P01-002", "score": 0.8490210175514221, "sibling_score": 0.8490210175514221, "answer_score": 0.366081577539444, "sibling_qid": "MUM-2024-03-1079-Q004", "sibling_text": "type of generator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "2. Types of generator/alternator carried onboard", "cross_family": false }, { "answer_id": "ALT-GEN-P02-001", "score": 0.701914370059967, "sibling_score": 0.701914370059967, "answer_score": null, "sibling_qid": "KOC-2022-12-0121-Q002", "sibling_text": "generator spec", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Alternator/generator specifications, ratings and ship electrical supply details", "cross_family": false }, { "answer_id": "IR-TEST-305-001", "score": 0.6443361043930054, "sibling_score": 0.6443361043930054, "answer_score": null, "sibling_qid": "KOC-2025-05-0596-Q020", "sibling_text": "ir test of generators", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Carrying out the IR (megger) test on an alternator winding", "cross_family": false } ] }, { "qid": "KOC-2025-08-2069-Q017", "text": "Where is thrust coming from didn’t said anything when told due to trim But got irritated when talked about torque due to magnetic field Have you read ism. Do you know the duties of duty engineer as per ism", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Thrust Bearing", "tid": "KOC-2025-08-2069", "tray": "review", "candidates": [ { "answer_id": "ISM-2E-A-001", "score": 0.8529072403907776, "sibling_score": 0.8529072403907776, "answer_score": null, "sibling_qid": "MUM-2025-10-2859-Q013", "sibling_text": "where is thrust coming from didn t said anything when told due to trim but got irritated when talked about torque due to magnetic field have you read ism do you know the duties of duty engineer as per ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Roles, duties and responsibilities of a Second Engineer under ISM/SMS", "cross_family": true }, { "answer_id": "THRUST-BRG-B-003", "score": 0.6484308838844299, "sibling_score": 0.6484308838844299, "answer_score": null, "sibling_qid": "KOL-2025-01-1964-Q009", "sibling_text": "propeller thrust how is it taken how thrust bearing is sitting how working", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Michell / tilting-pad / collar thrust bearing — working principle", "cross_family": false }, { "answer_id": "THR-BRG-A-001", "score": 0.6428549885749817, "sibling_score": 0.6428549885749817, "answer_score": 0.450313937664032, "sibling_qid": "KOL-2025-11-3881-Q005", "sibling_text": "thrust how transmitted and clearance", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you check, measure, limit and adjust main-engine thrust bearing clearance?", "cross_family": false } ] }, { "qid": "KOC-2025-09-0652-Q003", "text": "verification of compliance", "family": "Other Conventions", "subtopic": "III Code", "tid": "KOC-2025-09-0652", "tray": "new", "candidates": [ { "answer_id": "CERT-LIST-P02-002", "score": 0.6055784225463867, "sibling_score": 0.6055784225463867, "answer_score": null, "sibling_qid": "KOL-2019-07-3260-Q005", "sibling_text": "certificate of compliance", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Document of Compliance, Certificate and Statement of Compliance", "cross_family": true }, { "answer_id": "MRV-DCS-001", "score": 0.5881573557853699, "sibling_score": 0.5881573557853699, "answer_score": null, "sibling_qid": "MUM-2022-10-0054-Q005", "sibling_text": "how monitoring and verification done", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is the difference between EU MRV and IMO DCS?", "cross_family": true }, { "answer_id": "AIRP-188-008", "score": 0.5803059935569763, "sibling_score": 0.5803059935569763, "answer_score": 0.4384761035442352, "sibling_qid": "MUM-2025-09-0481-Q007", "sibling_text": "nox verification methods", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "How do you demonstrate NOx and SOx compliance to a surveyor?", "cross_family": true } ] }, { "qid": "KOC-2025-09-0652-Q010", "text": "IMO NUMBER location and dimensions? Internal:", "family": "IMO Structure & Conventions", "subtopic": "IMO / Committees / Codes", "tid": "KOC-2025-09-0652", "tray": "review", "candidates": [ { "answer_id": "SOLAS-OVW-011", "score": 0.8163503408432007, "sibling_score": 0.8163503408432007, "answer_score": 0.43077442348003386, "sibling_qid": "KOL-2025-10-1111-Q010", "sibling_text": "imo number location and dimensions internal", "sibling_family": "", "via": "sibling", "answer_title": "SOLAS Chapter XI-1 — special measures (safety): IMO number marking", "cross_family": false }, { "answer_id": "IMO-CC-P01-001", "score": 0.6305211186408997, "sibling_score": 0.6305211186408997, "answer_score": null, "sibling_qid": "KOL-2024-12-0899-Q003", "sibling_text": "imo structure in details", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Explain the structure and organs of IMO — Assembly, Council, Committees and Secretariat.", "cross_family": false }, { "answer_id": "IMO-5PIL-001", "score": 0.6246082186698914, "sibling_score": 0.6246082186698914, "answer_score": null, "sibling_qid": "MUM-2025-05-0252-Q004", "sibling_text": "structure of imo", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Structure of IMO — the main organs", "cross_family": false } ] }, { "qid": "KOC-2025-09-0652-Q012", "text": "rudder pressure test ?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOC-2025-09-0652", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.8013304471969604, "sibling_score": 0.8013304471969604, "answer_score": null, "sibling_qid": "MUM-2026-02-1272-Q011", "sibling_text": "pressure test of rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "DUS-P5-05", "score": 0.42224185466766356, "sibling_score": null, "answer_score": 0.42224185466766356, "sibling_qid": "", "sibling_text": "rudder checks and rudder blade tightness leak test in drydock visual checks coating condition cavitation erosion on the blade leading edge propeller side face sacrificial anodes against the approved cathodic protection plan grounding continuity against the approved acceptance criterion plate and weld cracks pintle clearance measured with feeler the numerical acceptance limit is class specific and ", "sibling_family": "", "via": "answer_title", "answer_title": "Rudder checks and rudder-blade tightness/leak test in drydock", "cross_family": false }, { "answer_id": "RUD-DROP-002", "score": 0.42170436084270474, "sibling_score": null, "answer_score": 0.42170436084270474, "sibling_qid": "", "sibling_text": "rudder clearances which where and how taken pintle bush clearance at each pintle top bottom f a and p s on long feeler gauges or pintle od vs bush id by caliper top mid bottom the maximum is the clearance renew the bush at the maker class limit carrier bearing wear down the rudder drop poker trammel gauge hull datum to stock mark against the recorded newbuilding reading", "sibling_family": "", "via": "answer_title", "answer_title": "Rudder clearances: which, where and how taken", "cross_family": false } ] }, { "qid": "KOC-2025-09-0654-Q004", "text": "what is MNC", "family": "ISM Code", "subtopic": "Major / Minor NC", "tid": "KOC-2025-09-0654", "tray": "review", "candidates": [ { "answer_id": "ISMNC-002", "score": 0.6972784399986267, "sibling_score": 0.6972784399986267, "answer_score": null, "sibling_qid": "MUM-2023-03-0091-Q009", "sibling_text": "define mnc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a major non-conformity under the ISM Code? Give the definition and name some.", "cross_family": false }, { "answer_id": "ISMNC-003", "score": 0.6437172293663025, "sibling_score": 0.6437172293663025, "answer_score": null, "sibling_qid": "MUM-2025-07-0350-Q003", "sibling_text": "mnc and nc define", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Differentiate between a major non-conformity and a non-conformity under the ISM Code.", "cross_family": false }, { "answer_id": "ISMNC-005", "score": 0.6359091401100159, "sibling_score": 0.6359091401100159, "answer_score": null, "sibling_qid": "MUM-2025-09-0447-Q005", "sibling_text": "mnc with example", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Give examples of a non-conformity and of a major non-conformity.", "cross_family": false } ] }, { "qid": "KOC-2025-09-0655-Q008", "text": "Transfer pump circuit and explain", "family": "Electrical - Motors & Starters", "subtopic": "Starter Panel / Control Circuit", "tid": "KOC-2025-09-0655", "tray": "new", "candidates": [ { "answer_id": "HYDRO-001", "score": 0.5371963977813721, "sibling_score": 0.5371963977813721, "answer_score": 0.4531152486801147, "sibling_qid": "KOC-2023-01-0126-Q009", "sibling_text": "circuit dia for hydrophore pump", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Draw and explain the hydrophore circuit diagram — power and control circuits, starter and safeties (one-motor version)", "cross_family": true }, { "answer_id": "HSAP-583-A-001", "score": 0.5200214982032776, "sibling_score": 0.5200214982032776, "answer_score": null, "sibling_qid": "KOC-2022-02-0956-Q010", "sibling_text": "heleshew pump diagram working", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Hele-Shaw pump: construction and working — draw and explain", "cross_family": true }, { "answer_id": "CPFE-583-001", "score": 0.5165153741836548, "sibling_score": 0.5165153741836548, "answer_score": 0.4161228910088539, "sibling_qid": "MUM-2026-05-3151-Q001", "sibling_text": "frame pump working explain", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "The Framo system — what it is, how it works, and the driving mechanism", "cross_family": true } ] }, { "qid": "KOC-2025-09-0656-Q010", "text": "US special requirements for ship", "family": "IMO Structure & Conventions", "subtopic": "IMO / Committees / Codes", "tid": "KOC-2025-09-0656", "tray": "new", "candidates": [ { "answer_id": "UMS-310-001", "score": 0.5951254367828369, "sibling_score": 0.5951254367828369, "answer_score": null, "sibling_qid": "MUM-2025-12-0662-Q006", "sibling_text": "ums ship solas requirement", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a UMS ship and what does SOLAS require? (Part E, regs 46–53)", "cross_family": true }, { "answer_id": "OWS-15PPM-007", "score": 0.5776230096817017, "sibling_score": 0.5776230096817017, "answer_score": null, "sibling_qid": "KOL-2022-12-0706-Q005", "sibling_text": "ows requirement of ships 10k dwt and above", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": true }, { "answer_id": "LRHR-A-001", "score": 0.5572221279144287, "sibling_score": 0.5572221279144287, "answer_score": null, "sibling_qid": "MUM-2024-08-0189-Q005", "sibling_text": "lifer aft requirements on ship", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "SOLAS requirement for liferafts on a cargo ship — number and total capacity", "cross_family": true } ] }, { "qid": "KOC-2025-09-0656-Q013", "text": "What is Bollard pull test ,meter used", "family": "Auxiliary Equipment", "subtopic": "Mooring / Bollard", "tid": "KOC-2025-09-0656", "tray": "new", "candidates": [ { "answer_id": "WBRT-001", "score": 0.6102826595306396, "sibling_score": 0.6102826595306396, "answer_score": 0.43897803127765656, "sibling_qid": "KOC-2025-12-0775-Q009", "sibling_text": "mooring winch break test", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Carrying out a mooring-winch brake rendering test", "cross_family": false }, { "answer_id": "WIND-WNCH-005", "score": 0.6048068404197693, "sibling_score": 0.6048068404197693, "answer_score": 0.4401022642850876, "sibling_qid": "KOC-2023-07-0198-Q005", "sibling_text": "mooring winch break testing", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Brake tests, rendering and load / efficiency testing", "cross_family": false }, { "answer_id": "WBRT-003", "score": 0.5932037234306335, "sibling_score": 0.5932037234306335, "answer_score": null, "sibling_qid": "MUM-2022-10-0057-Q005", "sibling_text": "windlass braking capacity test", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Brake type and arrangement; holding versus rendering capacity", "cross_family": false } ] }, { "qid": "KOC-2025-09-0656-Q014", "text": "Rescue boat 5 yr test", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Lifeboat Static / Dynamic Test", "tid": "KOC-2025-09-0656", "tray": "review", "candidates": [ { "answer_id": "LBT-TEST-B-002", "score": 0.739054262638092, "sibling_score": 0.739054262638092, "answer_score": null, "sibling_qid": "MUM-2026-05-3223-Q005", "sibling_text": "lifeboat 5 year testing", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Annual and 5-yearly lifeboat/davit tests (the servicing regime)", "cross_family": false }, { "answer_id": "LB-DAVIT-HRU-005", "score": 0.7131218314170837, "sibling_score": 0.7131218314170837, "answer_score": 0.45809769332408906, "sibling_qid": "MUM-2025-06-0310-Q006", "sibling_text": "5 yearly tests of lifeboat davit", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "The 5-yearly maintenance and testing of the lifeboat davit and winch", "cross_family": false }, { "answer_id": "LBT-TEST-B-004", "score": 0.4723099946975708, "sibling_score": null, "answer_score": 0.4723099946975708, "sibling_qid": "", "sibling_text": "tests carried out on the lifeboat davit onboard overview routine ship s staff weekly inspection engine run monthly inspection release gear operation exercised per approved procedure drill falls solas baseline is periodic inspection special attention at the sheaves renewed on deterioration or at 5 years end for ending only if the maker sms flag procedure requires it and it never replaces that renew", "sibling_family": "", "via": "answer_title", "answer_title": "Tests carried out on the lifeboat/davit onboard (overview)", "cross_family": false } ] }, { "qid": "KOC-2025-09-0656-Q015", "text": "Duct keel ,type of keel", "family": "SOLAS", "subtopic": "Keel & Framing", "tid": "KOC-2025-09-0656", "tray": "review", "candidates": [ { "answer_id": "KEEL-FRM-B-002", "score": 0.7402222752571106, "sibling_score": 0.7402222752571106, "answer_score": 0.5508929193019867, "sibling_qid": "MUM-2026-09-3918-Q005", "sibling_text": "what are the types of keels explain the purpose of a duct keel", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Duct keel and keel arrangements", "cross_family": false }, { "answer_id": "SHELL-PLT-B-001", "score": 0.6738137006759644, "sibling_score": 0.6738137006759644, "answer_score": null, "sibling_qid": "KOC-2025-12-0760-Q011", "sibling_text": "uses of duct keel keel plate camber shear strake", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Sheer strake — location, why strengthened, deck-edge / gunwale connection", "cross_family": false }, { "answer_id": "KEEL-FRM-B-001", "score": 0.44292024374008176, "sibling_score": null, "answer_score": 0.44292024374008176, "sibling_qid": "", "sibling_text": "types of keel and keel selection the keel is the principal continuous longitudinal strength member on the centreline bottom it ties the bottom together against longitudinal bending hogging and sagging flat plate keel a thick centreline strake with a vertical centre girder centre keelson above it standard for ocean going ships its thickness is never less than the adjoining bottom plating", "sibling_family": "", "via": "answer_title", "answer_title": "Types of keel and keel selection", "cross_family": false } ] }, { "qid": "KOC-2025-09-0657-Q003", "text": "Pressure vessels code", "family": "IMO Structure & Conventions", "subtopic": "IMO / Committees / Codes", "tid": "KOC-2025-09-0657", "tray": "review", "candidates": [ { "answer_id": "HYD-602-002", "score": 0.6833542585372925, "sibling_score": 0.6833542585372925, "answer_score": null, "sibling_qid": "MUM-2026-05-3129-Q005", "sibling_text": "pressure vessel safety", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Why is the hydrostatic test carried out, when is it done, and what does it prove?", "cross_family": true }, { "answer_id": "DDHSC-006", "score": 0.6638997793197632, "sibling_score": 0.6638997793197632, "answer_score": null, "sibling_qid": "KOC-2025-07-1922-Q007", "sibling_text": "seaside valves pressure testing in drydock requirement comes from which code which regulation internal questions", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "How is the sea chest inspected and maintained in drydock — including the valve and its pressure test — and which regulation requires it?", "cross_family": true }, { "answer_id": "MR-DS-PV-B-004", "score": 0.6604092717170715, "sibling_score": 0.6604092717170715, "answer_score": null, "sibling_qid": "KOC-2022-07-0076-Q003", "sibling_text": "pv breaker pv vlv mast riser pressure values", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "4. Purpose, arrangement, and safety function of the mast riser / high-velocity vent", "cross_family": true } ] }, { "qid": "KOC-2025-09-0657-Q004", "text": "RSO and RO", "family": "Surveys - Statutory", "subtopic": "PSC / Flag / RO / CIC / MoU", "tid": "KOC-2025-09-0657", "tray": "new", "candidates": [ { "answer_id": "PSC-RO-P02-008", "score": 0.617028534412384, "sibling_score": 0.617028534412384, "answer_score": null, "sibling_qid": "KOC-2026-02-0814-Q002", "sibling_text": "what is ro", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is a Recognised Organisation (RO)?", "cross_family": false }, { "answer_id": "PSC-RO-P02-011", "score": 0.6030892729759216, "sibling_score": 0.6030892729759216, "answer_score": 0.32543880641460415, "sibling_qid": "MUM-2025-09-0478-Q002", "sibling_text": "ro code", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the RO Code?", "cross_family": false }, { "answer_id": "IACS-324-003", "score": 0.562323808670044, "sibling_score": 0.562323808670044, "answer_score": null, "sibling_qid": "KOC-2023-05-0192-Q006", "sibling_text": "what is ro requirements ro code", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "3. What is a Recognized Organization, how is it recognized by a flag State, and how can a classification society become one?", "cross_family": false } ] }, { "qid": "KOC-2025-09-0657-Q008", "text": "Boiler safety valve", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2025-09-0657", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-001", "score": 0.8333309292793274, "sibling_score": 0.8333309292793274, "answer_score": null, "sibling_qid": "CHE-2026-04-0500-Q005", "sibling_text": "boiler safety valve setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "ACRV-005", "score": 0.8330350518226624, "sibling_score": 0.8330350518226624, "answer_score": null, "sibling_qid": "MUM-2026-03-1001-Q003", "sibling_text": "boiler safety valve blowdown", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.8313810229301453, "sibling_score": 0.8313810229301453, "answer_score": null, "sibling_qid": "CHE-2026-05-0583-Q002", "sibling_text": "boiler safety valve lifting pressure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOC-2025-09-0658-Q002", "text": "Solas regulations- lifeboat,CO2, Emergency fire pump", "family": "IMO Structure & Conventions", "subtopic": "SOLAS Chapters", "tid": "KOC-2025-09-0658", "tray": "review", "candidates": [ { "answer_id": "SOLAS-CH-015", "score": 0.8678920865058899, "sibling_score": 0.8678920865058899, "answer_score": null, "sibling_qid": "KOC-2025-10-0694-Q002", "sibling_text": "solas regulations lifeboat co2 emergency fire pump", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS chapters overview - current count and scope", "cross_family": false }, { "answer_id": "EFP-A-001", "score": 0.6790255308151245, "sibling_score": 0.6790255308151245, "answer_score": 0.5617856681346893, "sibling_qid": "KOC-2026-09-2198-Q002", "sibling_text": "solas regulation on emergency fire pump", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "What does SOLAS / the FSS Code require of an emergency fire pump — location, capacity, suction, power and availability?", "cross_family": true }, { "answer_id": "CO2-SYS-002", "score": 0.6740235090255737, "sibling_score": 0.6740235090255737, "answer_score": null, "sibling_qid": "KOC-2024-03-0320-Q002", "sibling_text": "he asked whether he had taken safety oral last time i said yes so he took his book and asked me all the questions he asked last time afs convention d2 regulation nox technical code nox technical file regulation numbers of annex 6 and how to obtain iapp certificate lifeboat static and dynamic test not accepting the answers in notes he said an equivalent weight of lifeboat is taken for testing lifeboat itself is not used for testing co2 system filling ratio how to find out that the said amount is filled co2 time delay unit co2 bottle stampings use of siphon tube in co2 where does frosting take place fire pump regulation why bilge pump of passenger ship taken as reference high expansion foam solas regulation internal no questions", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 maintenance, inspection, testing and survey routines", "cross_family": true } ] }, { "qid": "KOC-2025-09-0658-Q003", "text": "Ism - objectives ,functional requirements", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOC-2025-09-0658", "tray": "review", "candidates": [ { "answer_id": "ISM-AUD-P02-003", "score": 0.7452850341796875, "sibling_score": 0.7452850341796875, "answer_score": 0.44037047922611233, "sibling_qid": "MUM-2026-09-3991-Q005", "sibling_text": "functional requirements of ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "The six functional requirements of the ISM Code (clause 1.4)", "cross_family": false }, { "answer_id": "SMSFR-001", "score": 0.7056339383125305, "sibling_score": 0.7056339383125305, "answer_score": 0.45971346795558926, "sibling_qid": "MUM-2026-06-3581-Q001", "sibling_text": "what are the functional requirements of the ism code", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What are the functional requirements of the ISM Code and the SMS — and the requirement for internal audit?", "cross_family": false }, { "answer_id": "ISM-ELEM-003", "score": 0.541703999042511, "sibling_score": null, "answer_score": 0.541703999042511, "sibling_qid": "", "sibling_text": "elements chapters structure of the ism code part a implementation the 12 elements 1 general 1 1 definitions 1 2 objectives 1 3 application 1 4 functional requirements for an sms", "sibling_family": "", "via": "answer_title", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": false } ] }, { "qid": "KOC-2025-09-0661-Q001", "text": "ship hull dmage reporting detail system as per sms, with in what time give detailed report", "family": "ISM Code", "subtopic": "Root Cause / Incident Reporting", "tid": "KOC-2025-09-0661", "tray": "review", "candidates": [ { "answer_id": "ISM-AUD-P03-003", "score": 0.704208493232727, "sibling_score": 0.704208493232727, "answer_score": null, "sibling_qid": "KOC-2025-10-2075-Q006", "sibling_text": "hull damage has taken place how will you report to your company following sms one more question which i never heard", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Non-conformity, major non-conformity and incident reporting under SMS", "cross_family": false }, { "answer_id": "RCA-INC-001", "score": 0.5809930562973022, "sibling_score": 0.5809930562973022, "answer_score": 0.47013407945632935, "sibling_qid": "KOL-2025-09-1058-Q003", "sibling_text": "under ism proper reporting procedure for accident or incident on board", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "RCA-INC-01 — Reporting procedure for an accident or incident on board under ISM / SMS", "cross_family": false }, { "answer_id": "HULL-DD-006", "score": 0.5773930549621582, "sibling_score": 0.5773930549621582, "answer_score": 0.5546687006950378, "sibling_qid": "KOL-2019-09-0323-Q002", "sibling_text": "your ship had a collision how will u report the same to office wants to hear abt the designation of shell plating", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "7. Hull damage / collision / dent reporting and shell-plating designation", "cross_family": true } ] }, { "qid": "KOC-2025-09-0661-Q005", "text": "ism code objective", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOC-2025-09-0661", "tray": "review", "candidates": [ { "answer_id": "ISM-ELEM-001", "score": 0.7892468571662903, "sibling_score": 0.7892468571662903, "answer_score": 0.4509447544813156, "sibling_qid": "MUM-2025-11-0579-Q001", "sibling_text": "ism code objective", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "ISM-ELEM-002", "score": 0.5918442606925964, "sibling_score": 0.5918442606925964, "answer_score": null, "sibling_qid": "MUM-2026-08-3836-Q007", "sibling_text": "what is ism code", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the ISM Code?", "cross_family": false }, { "answer_id": "ISM-ELEM-003", "score": 0.4502627670764923, "sibling_score": null, "answer_score": 0.4502627670764923, "sibling_qid": "", "sibling_text": "elements chapters structure of the ism code part a implementation the 12 elements 1 general 1 1 definitions 1 2 objectives 1 3 application 1 4 functional requirements for an sms", "sibling_family": "", "via": "answer_title", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": false } ] }, { "qid": "KOC-2025-09-0661-Q006", "text": "bunker line pressure testing and entry in orb", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "KOC-2025-09-0661", "tray": "review", "candidates": [ { "answer_id": "BLT-339-001", "score": 0.7483392357826233, "sibling_score": 0.7483392357826233, "answer_score": 0.45123004317283627, "sibling_qid": "KOL-2025-10-1110-Q006", "sibling_text": "bunker line pressure testing and entry in orb", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Bunker Line Pressure Test — medium, pressure, holding, draining and records", "cross_family": true }, { "answer_id": "PPT-002", "score": 0.4724228739738464, "sibling_score": null, "answer_score": 0.4724228739738464, "sibling_qid": "", "sibling_text": "bunker line pressure test procedure frequency pressure duration checks and draining hydraulic test liquid not air testing with air is invalid and a recognised port state deficiency pressure basis for marine fuel oil piping iacs ur p2 class expresses the test as 1 5 design pressure use the ship approved value from the bunker plan or line rating 33 cfr 156 170 s 1 5 mawp is a us transfer operation b", "sibling_family": "", "via": "answer_title", "answer_title": "Bunker line pressure test: procedure, frequency, pressure, duration, checks and draining", "cross_family": false }, { "answer_id": "HYD-602-003", "score": 0.39529405534267426, "sibling_score": null, "answer_score": 0.39529405534267426, "sibling_qid": "", "sibling_text": "what checks and preparations precede the test and what equipment must be bypassed or isolated boiler cold drained internal inspection complete boxed up on new manhole mudhole joints isolate from the steam range and other boilers by the approved arrangement ensure no stop valve sees test pressure one side and live steam the other do not rely on one unverified shut valve", "sibling_family": "", "via": "answer_title", "answer_title": "What checks and preparations precede the test, and what equipment must be bypassed or isolated?", "cross_family": false } ] }, { "qid": "KOC-2025-09-0661-Q007", "text": "weekly entry code orb Int", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "KOC-2025-09-0661", "tray": "review", "candidates": [ { "answer_id": "ORB-IOPP-OWS-004", "score": 0.7795977592468262, "sibling_score": 0.7795977592468262, "answer_score": 0.3473830595612526, "sibling_qid": "KOC-2026-04-0901-Q013", "sibling_text": "orb weekly entry code and number", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Weekly ORB entries — the mandatory sludge retention record, the bunker entry, and what is voluntary", "cross_family": false }, { "answer_id": "OWS-ORB-006", "score": 0.5791974663734436, "sibling_score": 0.5791974663734436, "answer_score": null, "sibling_qid": "KOL-2026-03-1212-Q011", "sibling_text": "orb codes and entries", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "6. Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-002", "score": 0.480999618768692, "sibling_score": 0.480999618768692, "answer_score": 0.24562859833240508, "sibling_qid": "CHE-2024-10-0509-Q002", "sibling_text": "orb entries all in detail", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "The Oil Record Book Part I — purpose, the letter codes, and how entries are made", "cross_family": false } ] }, { "qid": "KOC-2025-09-0661-Q010", "text": "weekly retention code", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "KOC-2025-09-0661", "tray": "new", "candidates": [ { "answer_id": "ORB-IOPP-OWS-004", "score": 0.6246427297592163, "sibling_score": 0.6246427297592163, "answer_score": 0.37903338521718977, "sibling_qid": "KOC-2025-01-2059-Q014", "sibling_text": "orb entry of bunker and weekly retention in detail", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Weekly ORB entries — the mandatory sludge retention record, the bunker entry, and what is voluntary", "cross_family": false }, { "answer_id": "EMG-DG-P04-003", "score": 0.5016282796859741, "sibling_score": 0.5016282796859741, "answer_score": null, "sibling_qid": "MUM-2017-01-1322-Q004", "sibling_text": "weekly checks on emergency dg", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Checks, rounds and scheduled maintenance", "cross_family": true }, { "answer_id": "CO2-SYS-002", "score": 0.49354884028434753, "sibling_score": 0.49354884028434753, "answer_score": null, "sibling_qid": "KOC-2026-02-0827-Q014", "sibling_text": "co2 weekly maintenance", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 maintenance, inspection, testing and survey routines", "cross_family": true } ] }, { "qid": "KOC-2025-09-0661-Q012", "text": "how we know what all tanks to be entered in orb", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "KOC-2025-09-0661", "tray": "new", "candidates": [ { "answer_id": "IOPP-191-004", "score": 0.5158631801605225, "sibling_score": 0.5158631801605225, "answer_score": null, "sibling_qid": "KOC-2025-11-0703-Q006", "sibling_text": "iopp tanks list where it is mentioned", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "IOPP Supplement tank information: where sludge, bilge and oil-residue tanks are recorded", "cross_family": false }, { "answer_id": "OILRES-DISCH-TOPIC467-FINAL-001", "score": 0.4568839371204376, "sibling_score": 0.4568839371204376, "answer_score": null, "sibling_qid": "MUM-2026-06-3498-Q005", "sibling_text": "as second engineer how will you about which tanks are store oil and sludge", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Managing sludge and oily residues onboard — tanks, storage, hazards and the regulatory basis", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-002", "score": 0.45402976870536804, "sibling_score": 0.45402976870536804, "answer_score": null, "sibling_qid": "CHE-2024-10-0509-Q002", "sibling_text": "orb entries all in detail", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "The Oil Record Book Part I — purpose, the letter codes, and how entries are made", "cross_family": false } ] }, { "qid": "KOC-2025-09-0665-Q007", "text": "X how many extraction fan", "family": "Auxiliary Equipment", "subtopic": "General Auxiliary Machinery", "tid": "KOC-2025-09-0665", "tray": "new", "candidates": [ { "answer_id": "INCIN-005", "score": 0.5074494481086731, "sibling_score": 0.5074494481086731, "answer_score": null, "sibling_qid": "MUM-2026-05-3154-Q009", "sibling_text": "how many blowers in incinerator", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Components, blowers and the ‘mist box’ query", "cross_family": false }, { "answer_id": "EQNO-536-001", "score": 0.4526883661746979, "sibling_score": 0.4526883661746979, "answer_score": null, "sibling_qid": "MUM-2026-05-3275-Q001", "sibling_text": "equipment number and x questions", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "What is equipment number?", "cross_family": true }, { "answer_id": "PPS-622-004", "score": 0.4505757689476013, "sibling_score": 0.4505757689476013, "answer_score": null, "sibling_qid": "MUM-2022-09-2696-Q007", "sibling_text": "4 suction head for centrifugal pump", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "The bilge or ballast pump is not taking suction — reasons, how to identify the problem, how to rectify it. What does the suction gauge read, and what is suction head?", "cross_family": true } ] }, { "qid": "KOC-2025-09-0665-Q009", "text": "How to familiarise first time junior as 2E", "family": "ISM Code", "subtopic": "Training Junior Engineer", "tid": "KOC-2025-09-0665", "tray": "new", "candidates": [ { "answer_id": "JOIN-HDVR-003", "score": 0.43255531787872314, "sibling_score": 0.43255531787872314, "answer_score": 0.35435996651649476, "sibling_qid": "MUM-2025-12-0617-Q004", "sibling_text": "how will you train newly joined junior as a second engineer", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Familiarising and training a newly joined junior engineer as Second Engineer", "cross_family": false }, { "answer_id": "ISM-AUD-P02-004", "score": 0.41047191619873047, "sibling_score": 0.41047191619873047, "answer_score": null, "sibling_qid": "KOC-2026-02-0799-Q015", "sibling_text": "when a junior join in ship what all u do familiarise him about means of escape alarm sounds especially co2 alarm sounds", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "SMS contents, manuals, documents and drill records onboard", "cross_family": false }, { "answer_id": "JOIN-HDVR-002", "score": 0.35079920291900635, "sibling_score": 0.35079920291900635, "answer_score": null, "sibling_qid": "KOL-2016-11-0027-Q003", "sibling_text": "familiarization checklist", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "After joining — the familiarisation checklist and the SMS documents you sign", "cross_family": false } ] }, { "qid": "KOC-2025-09-1053-Q002", "text": "Types of engines worked", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOC-2025-09-1053", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.7269331812858582, "sibling_score": 0.7269331812858582, "answer_score": null, "sibling_qid": "MUM-2026-06-3492-Q002", "sibling_text": "which type of engines worked on", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "MCC-MEB-P01-001", "score": 0.7226029634475708, "sibling_score": 0.7226029634475708, "answer_score": null, "sibling_qid": "MUM-2026-09-3997-Q002", "sibling_text": "type of engine worked me mcc me b and rta", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "MC-C (\"Compact\") engine — design and the main constructional differences from MC", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.6968173980712891, "sibling_score": 0.6968173980712891, "answer_score": null, "sibling_qid": "CHE-2026-04-0506-Q003", "sibling_text": "types of engine you worked specifications of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false } ] }, { "qid": "KOC-2025-09-1944-Q003", "text": "purifier desludging procedure? How does the bowl close?", "family": "Purifier & Centrifuges", "subtopic": "Desludging", "tid": "KOC-2025-09-1944", "tray": "review", "candidates": [ { "answer_id": "PUR-DSL-001", "score": 0.8129379153251648, "sibling_score": 0.8129379153251648, "answer_score": 0.5025946736335755, "sibling_qid": "MUM-2026-05-3220-Q006", "sibling_text": "purifier desludging procedure how does the bowl close", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Manual desludging of a purifier — the step-by-step procedure", "cross_family": false }, { "answer_id": "PURIF-BOWL-P02-001", "score": 0.6671778559684753, "sibling_score": 0.6671778559684753, "answer_score": 0.5780810683965683, "sibling_qid": "MUM-2024-07-2767-Q016", "sibling_text": "how does the bowl close", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Bowl opening, closing & manual desludging — mechanism, manual operation, failure causes", "cross_family": false }, { "answer_id": "PARD-330-004", "score": 0.6506245136260986, "sibling_score": 0.6506245136260986, "answer_score": null, "sibling_qid": "MUM-2023-09-1059-Q011", "sibling_text": "pairing disk in purifier then he asked how bowl opening and closing is achieved", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "What is the purpose of the paring disc — why does the purifier need it at all?", "cross_family": false } ] }, { "qid": "KOC-2025-09-1945-Q003", "text": "waste bolt First time hearing ■ 2 more questions not remember", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Holding Down Bolts", "tid": "KOC-2025-09-1945", "tray": "new", "candidates": [ { "answer_id": "FB-COUP-001", "score": 0.508655309677124, "sibling_score": 0.508655309677124, "answer_score": null, "sibling_qid": "MUM-2022-12-1039-Q008", "sibling_text": "what are the fitted bolts and where we use onboard", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What fitted bolts are, what they do, and where they sit onboard", "cross_family": false }, { "answer_id": "CRK-DEFL-001", "score": 0.507927417755127, "sibling_score": 0.507927417755127, "answer_score": null, "sibling_qid": "KOC-2026-03-2008-Q011", "sibling_text": "which part could bend or broke first some more questions i forgot internal no questions", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Purpose, timing and scope of crankshaft deflection", "cross_family": false }, { "answer_id": "WMAT-170-002", "score": 0.48559629917144775, "sibling_score": 0.48559629917144775, "answer_score": null, "sibling_qid": "KOC-2024-07-1848-Q007", "sibling_text": "and some more i don t remember internal paul sir how was your viva i said i will try harder for fn6 and come back again question what is bimetallic bearing and cross what is white metal he said come back for fn6", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bi-metal and tri-metal bearings: layers, materials, functions, advantages", "cross_family": true } ] }, { "qid": "KOC-2025-09-2074-Q005", "text": "Max wear in the main engine liner. Draw and values of liner wear limit", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "KOC-2025-09-2074", "tray": "review", "candidates": [ { "answer_id": "CYL-LINER-P01-003", "score": 0.6619473099708557, "sibling_score": 0.6619473099708557, "answer_score": 0.4394213408231735, "sibling_qid": "KOC-2026-08-2146-Q014", "sibling_text": "maximum wear down of liner", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "From the readings: wear, wear rate, units and renewal limits", "cross_family": false }, { "answer_id": "CYL-LINER-P02-005", "score": 0.6297205686569214, "sibling_score": 0.6297205686569214, "answer_score": null, "sibling_qid": "KOL-2026-04-3950-Q004", "sibling_text": "main engine one unit liner wear down increasing and all unit wear down increasing reasons", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L5 · T044-PART_02-G005High", "cross_family": false }, { "answer_id": "CYL-LINER-P02-003", "score": 0.6020601391792297, "sibling_score": 0.6020601391792297, "answer_score": null, "sibling_qid": "MUM-2023-05-1048-Q008", "sibling_text": "liner wear diagram draw n show", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L3 · T044-PART_02-G003High", "cross_family": false } ] }, { "qid": "KOC-2025-09-2074-Q008", "text": "What provision is there onboard to check the condition of machineries? MEP How to remove piston of aux engine? Full explanation What all check on piston after removing it? What if ovality is not within limit? What kind of check on the big end bolts?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE Conrod / Piston", "tid": "KOC-2025-09-2074", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-004", "score": 0.7550317645072937, "sibling_score": 0.7550317645072937, "answer_score": null, "sibling_qid": "KOC-2021-05-1760-Q004", "sibling_text": "connecting rod checks in auxiliary engine ans normal procedure he needs that no need to check anything on conrod bolts change it after running hours specified in manual and reason for conrod ovality is excessive lapping of serrations", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE connecting-rod inspection — ovality, trueness, serrations, action if out of limit", "cross_family": false }, { "answer_id": "AE-CRP-003", "score": 0.7487021684646606, "sibling_score": 0.7487021684646606, "answer_score": null, "sibling_qid": "KOL-2017-02-1277-Q008", "sibling_text": "aux engine piston inspection what are all things u will check", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE piston, ring and groove checks; piston material", "cross_family": false }, { "answer_id": "PIST-CSI-C-002", "score": 0.7036117911338806, "sibling_score": 0.7036117911338806, "answer_score": null, "sibling_qid": "CHE-2026-08-3875-Q005", "sibling_text": "piston checks after overhaul pressure test", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Piston pressure / hydraulic leak testing after overhaul", "cross_family": false } ] }, { "qid": "KOC-2025-09-2202-Q001", "text": "SOLAS Chapters ?", "family": "SOLAS - General", "subtopic": "SOLAS Chapters / Certificates", "tid": "KOC-2025-09-2202", "tray": "review", "candidates": [ { "answer_id": "SOLAS-OVW-001", "score": 0.7515085935592651, "sibling_score": 0.7515085935592651, "answer_score": 0.44192104935646054, "sibling_qid": "CHE-2026-04-0152-Q002", "sibling_text": "chapters of solas", "sibling_family": "SOLAS - General", "via": "sibling", "answer_title": "SOLAS — how many chapters, and what each covers", "cross_family": false }, { "answer_id": "SOLAS12-C-001", "score": 0.7334821224212646, "sibling_score": 0.7334821224212646, "answer_score": null, "sibling_qid": "KOC-2026-10-2218-Q002", "sibling_text": "solas chapter 12 name all chapters", "sibling_family": "SOLAS - General", "via": "sibling", "answer_title": "Explain SOLAS Chapter XII for bulk carriers — oral-exam overview", "cross_family": false }, { "answer_id": "SOLAS-CH-015", "score": 0.7273778915405273, "sibling_score": 0.7273778915405273, "answer_score": 0.5634366542100906, "sibling_qid": "KOC-2023-12-0260-Q010", "sibling_text": "solas chapters", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS chapters overview - current count and scope", "cross_family": true } ] }, { "qid": "KOC-2025-09-2202-Q002", "text": "Chapter 12 and explain Widas ?", "family": "Cargo Ops - Bulk Carriers", "subtopic": "WIDAS / Smoke Detection", "tid": "KOC-2025-09-2202", "tray": "new", "candidates": [ { "answer_id": "SOLAS12-BC-E-001", "score": 0.6228464245796204, "sibling_score": 0.6228464245796204, "answer_score": null, "sibling_qid": "CHE-2026-05-0623-Q008", "sibling_text": "solas chapter 12 contents explain about widas loadicator", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Water ingress detection & alarm system (WIDAS) — SOLAS XII/12", "cross_family": false }, { "answer_id": "WIDAS-SMK-001", "score": 0.503711462020874, "sibling_score": 0.503711462020874, "answer_score": null, "sibling_qid": "KOC-2025-06-0613-Q006", "sibling_text": "explain widas", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "WIDAS — water ingress detection and alarm system", "cross_family": false }, { "answer_id": "WIDAS-SMK-005", "score": 0.5026110410690308, "sibling_score": 0.5026110410690308, "answer_score": 0.2352178916335106, "sibling_qid": "MUM-2026-03-0839-Q003", "sibling_text": "chapter 12 for bulk carrier what is states especially widas system", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Regulation, SOLAS Chapter XII references and exemptions", "cross_family": false } ] }, { "qid": "KOC-2025-09-2202-Q003", "text": "MLC Titles and what all are the requirements to join onboard ?", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOC-2025-09-2202", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-006", "score": 0.498268187046051, "sibling_score": 0.498268187046051, "answer_score": 0.30711497366428375, "sibling_qid": "MUM-2026-06-3645-Q001", "sibling_text": "certificates of mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false }, { "answer_id": "MLC-WRH-B-001", "score": 0.48246410489082336, "sibling_score": 0.48246410489082336, "answer_score": 0.3511407285928726, "sibling_qid": "KOC-2026-05-2135-Q011", "sibling_text": "mlc titles explain title 1 explain dmlc part 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "MLC-WRH-B-004", "score": 0.4384686350822449, "sibling_score": 0.4384686350822449, "answer_score": null, "sibling_qid": "KOL-2021-07-0526-Q006", "sibling_text": "4 mlc 2006 rest hours minimum age required to workonboard minimum age for night watch", "sibling_family": "MLC", "via": "sibling", "answer_title": "Young seafarers — minimum age, night work, and what the 2/E must ensure", "cross_family": false } ] }, { "qid": "KOC-2025-09-2202-Q004", "text": "DMLC Part1 and Part2 and who make these ?", "family": "MLC", "subtopic": "MLC / DMLC / Work-Rest", "tid": "KOC-2025-09-2202", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.6618672609329224, "sibling_score": 0.6618672609329224, "answer_score": 0.28964923620224, "sibling_qid": "MUM-2026-05-3314-Q007", "sibling_text": "dmlc part 1 and part 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "GMCM-583-A-002", "score": 0.19193878397345543, "sibling_score": null, "answer_score": 0.19193878397345543, "sibling_qid": "", "sibling_text": "02 the multimeter construction internal circuit and how one instrument reads several different parameters one movement or one adc plus switched signal conditioning networks that is the whole idea dc volts series multipliers ac volts rectifier plus multipliers", "sibling_family": "", "via": "answer_title", "answer_title": "02. The multimeter — construction, internal circuit, and how one instrument reads several different parameters", "cross_family": false }, { "answer_id": "DCP-PPC-003", "score": 0.18667407780885695, "sibling_score": null, "answer_score": 0.18667407780885695, "sibling_qid": "", "sibling_text": "c3 dcp general working advantages disadvantages common issues", "sibling_family": "", "via": "answer_title", "answer_title": "C3 — DCP — General Working, Advantages, Disadvantages & Common Issues", "cross_family": false } ] }, { "qid": "KOC-2025-09-2202-Q005", "text": "ISM Documentation as 2E ?", "family": "ISM Code", "subtopic": "2E Responsibility", "tid": "KOC-2025-09-2202", "tray": "review", "candidates": [ { "answer_id": "ISM-2E-C-001", "score": 0.7174702286720276, "sibling_score": 0.7174702286720276, "answer_score": null, "sibling_qid": "KOC-2025-06-0616-Q004", "sibling_text": "ism documents parts as 2e", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM audit / survey preparation as Second Engineer — beyond the paperwork", "cross_family": false }, { "answer_id": "ISM-AUDIT-P01-001", "score": 0.5944016575813293, "sibling_score": 0.5944016575813293, "answer_score": 0.31100115180015564, "sibling_qid": "KOC-2025-08-2071-Q011", "sibling_text": "ism survey documents as 2e", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Preparing engine room, records and documents for ISM/SMS audit (2/E)", "cross_family": false }, { "answer_id": "ISM-SMCDOC-A-001", "score": 0.5882810950279236, "sibling_score": 0.5882810950279236, "answer_score": null, "sibling_qid": "CHE-2025-08-0020-Q008", "sibling_text": "ism documents", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM certificates: the DOC and SMC family", "cross_family": false } ] }, { "qid": "KOC-2025-09-2202-Q006", "text": "Ballast water G7 Guidelines ?", "family": "Other Conventions", "subtopic": "Ballast Water Convention / BWM / BWMS", "tid": "KOC-2025-09-2202", "tray": "review", "candidates": [ { "answer_id": "BWM-D1D2-P04-001", "score": 0.7651215195655823, "sibling_score": 0.7651215195655823, "answer_score": null, "sibling_qid": "KOC-2024-09-0417-Q009", "sibling_text": "ballast water management regulation d2 explain what is g7", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "D-2 standard and G7 — risk assessment for Regulation A-4 exemptions", "cross_family": false }, { "answer_id": "BWM-D1D2-P04-002", "score": 0.750301718711853, "sibling_score": 0.750301718711853, "answer_score": null, "sibling_qid": "KOC-2022-11-0112-Q003", "sibling_text": "ballast water d2 d4 standards also asked g8 guidelines", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "D-2 standard and the BWMS Code (ex-G8) — type approval of treatment systems", "cross_family": false }, { "answer_id": "BWMS-C-008", "score": 0.7126101851463318, "sibling_score": 0.7126101851463318, "answer_score": null, "sibling_qid": "KOC-2024-09-0407-Q008", "sibling_text": "g7 guidelines for ballast", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "G7 — risk assessment for regulation A-4 exemptions", "cross_family": false } ] }, { "qid": "KOC-2025-09-2202-Q007", "text": "Inclining Experiment explain Requirement, formula and how to find KG ?", "family": "Ship Construction & Naval Architecture", "subtopic": "", "tid": "KOC-2025-09-2202", "tray": "review", "candidates": [ { "answer_id": "INCL-EXP-D-001", "score": 0.7130332589149475, "sibling_score": 0.7130332589149475, "answer_score": 0.48172097504138944, "sibling_qid": "CHE-2026-04-0518-Q005", "sibling_text": "explain inclining experiment why your are calculating kg", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Finding GM — then KG and the centre of gravity", "cross_family": true }, { "answer_id": "INCL-EXP-D-002", "score": 0.6302269101142883, "sibling_score": 0.6302269101142883, "answer_score": 0.4157049387693405, "sibling_qid": "KOC-2026-02-0797-Q008", "sibling_text": "explain inclining experiment how to calculate weight", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Choosing the inclining weight — how much, and why that much", "cross_family": true }, { "answer_id": "INCL-EXP-C-001", "score": 0.4719776391983032, "sibling_score": null, "answer_score": 0.4719776391983032, "sibling_qid": "", "sibling_text": "what preparations conditions precautions data and procedure are required for an inclining experiment", "sibling_family": "", "via": "answer_title", "answer_title": "What preparations, conditions, precautions, data, and procedure are required for an inclining experiment?", "cross_family": false } ] }, { "qid": "KOC-2025-09-2202-Q008", "text": "Duties of SSO ?", "family": "ISPS", "subtopic": "SSP / SSAS / SSO / CSO", "tid": "KOC-2025-09-2202", "tray": "review", "candidates": [ { "answer_id": "ISPS-P03-003", "score": 0.7010210752487183, "sibling_score": 0.7010210752487183, "answer_score": 0.4060800805687904, "sibling_qid": "KOC-2026-03-0883-Q007", "sibling_text": "sso duties", "sibling_family": "ISPS", "via": "sibling", "answer_title": "Ship Security Officer (SSO): duties and responsibilities", "cross_family": false }, { "answer_id": "ISPS-P03-001", "score": 0.6670184135437012, "sibling_score": 0.6670184135437012, "answer_score": 0.39331978261470796, "sibling_qid": "KOC-2026-05-2135-Q010", "sibling_text": "duties of cso who carries out ssa", "sibling_family": "ISPS", "via": "sibling", "answer_title": "Company Security Officer (CSO): duties, functions and responsibilities", "cross_family": false }, { "answer_id": "ISPS-P03-002", "score": 0.6541752815246582, "sibling_score": 0.6541752815246582, "answer_score": 0.43260820508003234, "sibling_qid": "KOC-2025-10-2080-Q008", "sibling_text": "duties of cso sso", "sibling_family": "ISPS", "via": "sibling", "answer_title": "CSO and SSO: difference, combined duties and relationship", "cross_family": false } ] }, { "qid": "KOC-2025-09-2202-Q009", "text": "CO2 2,5,10 Yearly Maintenance ?", "family": "SOLAS - Fire Safety", "subtopic": "CO2 System", "tid": "KOC-2025-09-2202", "tray": "review", "candidates": [ { "answer_id": "CO2-SYS-002", "score": 0.8222109079360962, "sibling_score": 0.8222109079360962, "answer_score": 0.4043652832508087, "sibling_qid": "KOC-2024-03-0323-Q002", "sibling_text": "co2 2 5 10 yearly maintenance", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 maintenance, inspection, testing and survey routines", "cross_family": false }, { "answer_id": "CO2-SYS-P06-001", "score": 0.442206135392189, "sibling_score": null, "answer_score": 0.442206135392189, "sibling_qid": "", "sibling_text": "co2 fixed system full maintenance and inspection schedule weekly to 10 yearly and the revised cylinder test regime controlling sources in order solas ii 2 and fss code chapter 5 statutory msc 1 circ 1318 rev 1 imo fixed co2 maintenance guidance 25 may 2021 in india dgs engineering circular 01 of 2022 implements it maker s manual and ship sms pms on top weekly indian dgs mmd layer msc 1 circ 1432 f", "sibling_family": "", "via": "answer_title", "answer_title": "CO2 fixed system — full maintenance and inspection schedule (weekly to 10-yearly, and the revised cylinder-test regime)", "cross_family": false }, { "answer_id": "CSAS-SURV-005", "score": 0.3808278262615204, "sibling_score": null, "answer_score": 0.3808278262615204, "sibling_qid": "", "sibling_text": "continuous survey of machinery csm purpose spread the machinery special survey over the 5 year cycle avoid one big shutdown items split into 5 groups 20 per year interval per item 5 years", "sibling_family": "", "via": "answer_title", "answer_title": "Continuous Survey of Machinery (CSM)", "cross_family": false } ] }, { "qid": "KOC-2025-09-2202-Q010", "text": "AVR types and Explain Static AVR ?", "family": "Electrical - Generator & Alternator", "subtopic": "AVR / Excitation", "tid": "KOC-2025-09-2202", "tray": "review", "candidates": [ { "answer_id": "AVR-EXC-D-001", "score": 0.8253636956214905, "sibling_score": 0.8253636956214905, "answer_score": 0.43072396218776704, "sibling_qid": "KOC-2023-03-1250-Q005", "sibling_text": "avr types explain static avr", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Static AVR / static excitation — types of AVR, and how the static system works", "cross_family": false }, { "answer_id": "AVR-EXC-E-001", "score": 0.794491708278656, "sibling_score": 0.794491708278656, "answer_score": 0.38087111860513684, "sibling_qid": "KOL-2022-03-2548-Q002", "sibling_text": "avr types and static avr explain", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "How does a static AVR / static excitation system work? (draw & explain)", "cross_family": false }, { "answer_id": "AVR-EXC-C-001", "score": 0.4047432616353035, "sibling_score": null, "answer_score": 0.4047432616353035, "sibling_qid": "", "sibling_text": "types of avr excitation and how one is selected classifytwoways by correction mode error operated vs functional compounding andby type era types carbon pile vibrating contact tirrill magnetic amplifier transductor electronic static scr thyristor the modern standard now often digital", "sibling_family": "", "via": "answer_title", "answer_title": "Types of AVR / excitation and how one is selected", "cross_family": false } ] }, { "qid": "KOC-2025-09-2202-Q011", "text": "IEC standards and Cable Layers ?", "family": "Electrical - Cables & Insulation", "subtopic": "", "tid": "KOC-2025-09-2202", "tray": "review", "candidates": [ { "answer_id": "CBL-INS-B-001", "score": 0.8286452889442444, "sibling_score": 0.8286452889442444, "answer_score": 0.5310112714767455, "sibling_qid": "KOC-2026-08-2144-Q004", "sibling_text": "iec standards cable layers", "sibling_family": "Electrical - Cables & Insulation", "via": "sibling", "answer_title": "IEC and marine cable standards for shipboard cables", "cross_family": false }, { "answer_id": "CBL-INS-A-001", "score": 0.7641550302505493, "sibling_score": 0.7641550302505493, "answer_score": 0.5286975502967834, "sibling_qid": "KOC-2023-09-1283-Q005", "sibling_text": "iec standards name of each layer in cable", "sibling_family": "", "via": "sibling", "answer_title": "IEC / marine cable standards used for shipboard cables", "cross_family": false }, { "answer_id": "CABLE-INS-E-005", "score": 0.49802093505859374, "sibling_score": null, "answer_score": 0.49802093505859374, "sibling_qid": "", "sibling_text": "cable properties safety standards and condition core properties flame retardant iec 60332 as the baseline low smoke iec 61034 and halogen free iec 60754 where specified these are separate tests not one frls lszh label copper conductor correct temp class xlpe epr 90 c adequate current rating mechanical armour protection oil moisture resistant standard iec 60092 series 350 construction 352 install 3", "sibling_family": "", "via": "answer_title", "answer_title": "Cable properties, safety, standards and condition", "cross_family": false } ] }, { "qid": "KOC-2025-09-2202-Q012", "text": "VFD explain where it is used onboard ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Inverter / VFD", "tid": "KOC-2025-09-2202", "tray": "review", "candidates": [ { "answer_id": "VFD-INV-P01-002", "score": 0.7047628164291382, "sibling_score": 0.7047628164291382, "answer_score": 0.5111924469470978, "sibling_qid": "KOC-2023-01-1227-Q005", "sibling_text": "vfd where used", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Where is a VFD used onboard, and why?", "cross_family": false }, { "answer_id": "VFD-INV-P02-001", "score": 0.6719867587089539, "sibling_score": 0.6719867587089539, "answer_score": 0.41127004474401474, "sibling_qid": "KOC-2025-02-1498-Q004", "sibling_text": "vfd explain", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Draw and explain the VFD power circuit and working sequence", "cross_family": false }, { "answer_id": "VFD-INV-P01-001", "score": 0.6468411087989807, "sibling_score": 0.6468411087989807, "answer_score": null, "sibling_qid": "MUM-2026-06-3422-Q001", "sibling_text": "explain vfd", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a VFD and what does it do?", "cross_family": false } ] }, { "qid": "KOC-2025-09-2202-Q013", "text": "Cogging and Crawling of induction motor ?", "family": "Electrical - Motors & Starters", "subtopic": "Induction Motor (General / Working)", "tid": "KOC-2025-09-2202", "tray": "review", "candidates": [ { "answer_id": "IM-GW-C-001", "score": 0.8143144249916077, "sibling_score": 0.8143144249916077, "answer_score": 0.6307152360677719, "sibling_qid": "KOC-2024-03-1340-Q005", "sibling_text": "cogging and crawling of induction motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Cogging, crawling and harmonic effects in induction motors", "cross_family": false }, { "answer_id": "MNS-012", "score": 0.5869406223297119, "sibling_score": null, "answer_score": 0.5869406223297119, "sibling_qid": "", "sibling_text": "cogging and magnetic locking in an induction motor what they are where and why cogging and magnetic locking are the same phenomenon say so do not treat them as two cause rotor slots equal to or an integer multiple of stator slots", "sibling_family": "", "via": "answer_title", "answer_title": "Cogging and magnetic locking in an induction motor — what they are, where, and why", "cross_family": false }, { "answer_id": "ROTSTAT-C-001", "score": 0.5378082454204559, "sibling_score": null, "answer_score": 0.5378082454204559, "sibling_qid": "", "sibling_text": "rotor skewing cogging crawling harmonics skew rotor bars set at an angle to the shaft roughly one stator slot pitch representative figure design set three purposes smooth quiet torque less noise vibration suppress slot harmonics", "sibling_family": "", "via": "answer_title", "answer_title": "Rotor skewing, cogging, crawling & harmonics", "cross_family": false } ] }, { "qid": "KOC-2025-09-2202-Q014", "text": "Gangway motor tripping reasons ?", "family": "Electrical - Motors & Starters", "subtopic": "Motor Not Starting", "tid": "KOC-2025-09-2202", "tray": "review", "candidates": [ { "answer_id": "MNS-009", "score": 0.8179270625114441, "sibling_score": 0.8179270625114441, "answer_score": 0.5116046994924545, "sibling_qid": "KOC-2025-10-1597-Q004", "sibling_text": "gangway motor tripping electrical reasons", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Motor trips on starting, or immediately after — electrical reasons and your checks", "cross_family": false }, { "answer_id": "MNS-004", "score": 0.5285140454769134, "sibling_score": null, "answer_score": 0.5285140454769134, "sibling_qid": "", "sibling_text": "motor starts and then stops again and again frequent start stop cycling on a gangway motor it started so supply fuses and main path are broadly sound that narrows the tree immediately overload relay cutting in on each start and self resetting on cooling is the classic cycling cause", "sibling_family": "", "via": "answer_title", "answer_title": "Motor starts and then stops, again and again — frequent start/stop cycling on a gangway motor", "cross_family": false }, { "answer_id": "AUX-CRANE-005", "score": 0.49831610321998593, "sibling_score": null, "answer_score": 0.49831610321998593, "sibling_qid": "", "sibling_text": "causes of deck crane trips and how to investigate and repair deck crane faults protection trips overload load exceeds swl at radius motor thermal overcurrent hydraulic over pressure or low level oil over temperature limit switch reached emergency stop supply control faults low or lost control voltage phase failure imbalance blown fuse dropped out contactor brake fault", "sibling_family": "", "via": "answer_title", "answer_title": "Causes of deck crane trips, and how to investigate and repair deck crane faults", "cross_family": false } ] }, { "qid": "KOC-2025-09-2202-Q015", "text": "High Voltage Advantages and Disadvantages ?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "MEP / IMEP / MIP", "tid": "KOC-2025-09-2202", "tray": "review", "candidates": [ { "answer_id": "HV-SYS-P03-001", "score": 0.7905038595199585, "sibling_score": 0.7905038595199585, "answer_score": 0.5154208093881607, "sibling_qid": "KOL-2019-06-2296-Q003", "sibling_text": "high voltage advantage disadvantage", "sibling_family": "", "via": "sibling", "answer_title": "What are the advantages and disadvantages of a high-voltage ship electrical system?", "cross_family": false }, { "answer_id": "HV-SYS-P02-001", "score": 0.764560341835022, "sibling_score": 0.764560341835022, "answer_score": 0.4671242356300354, "sibling_qid": "KOC-2026-03-1729-Q001", "sibling_text": "high voltage advantages", "sibling_family": "", "via": "sibling", "answer_title": "Why high voltage is used onboard ships", "cross_family": false }, { "answer_id": "IRT-C-002", "score": 0.47489253878593446, "sibling_score": null, "answer_score": 0.47489253878593446, "sibling_qid": "", "sibling_text": "why high voltage why not small resistances and vs the multimeter high test voltage stresses the insulation so latent weakness moisture contamination tracking voids appears a fault that hides at low voltage shows at rated order voltage test voltage matched to rating 500 v for lv 1 kv 1000 5000 v for hv not so high as to damage sound insulation", "sibling_family": "", "via": "answer_title", "answer_title": "Why high voltage, why not small resistances — and vs the multimeter", "cross_family": false } ] }, { "qid": "KOC-2025-09-2202-Q016", "text": "What is mean by Arc Flash ?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Flash/Fire Point", "tid": "KOC-2025-09-2202", "tray": "new", "candidates": [ { "answer_id": "HV-SYS-P06-003", "score": 0.6279662847518921, "sibling_score": 0.6279662847518921, "answer_score": 0.5384958058595657, "sibling_qid": "KOC-2026-09-2206-Q018", "sibling_text": "arc flash arc blast", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Arc flash, arc blast and arcing control in HV systems", "cross_family": true }, { "answer_id": "CBR-ARC-G-001", "score": 0.570244550704956, "sibling_score": 0.570244550704956, "answer_score": 0.4666212439537048, "sibling_qid": "KOC-2025-11-1606-Q014", "sibling_text": "what is arcing", "sibling_family": "", "via": "sibling", "answer_title": "Arc formation, arc quenching and arc-blast hazard", "cross_family": false }, { "answer_id": "OCR-185-006", "score": 0.4273994445800781, "sibling_score": null, "answer_score": 0.4273994445800781, "sibling_qid": "", "sibling_text": "if short circuit protection fails to operate how it is checked uncleared short circuit severe mechanical thermal stress insulation failure arc flash and fire likely loss of the machine and a blackout back up must clear it upstream breaker the other paralleled set s breaker or fuses the scheme is graded for discrimination", "sibling_family": "", "via": "answer_title", "answer_title": "If short-circuit protection fails to operate; how it is checked", "cross_family": false } ] }, { "qid": "KOC-2025-10-0667-Q001", "text": "Cross sectional drawing of your ship? (Gas tanker)", "family": "Cargo Ops - Gas Carriers", "subtopic": "Cargo Tank Construction", "tid": "KOC-2025-10-0667", "tray": "review", "candidates": [ { "answer_id": "SHELL-PLT-B-001", "score": 0.8078131079673767, "sibling_score": 0.8078131079673767, "answer_score": null, "sibling_qid": "KOC-2026-03-0871-Q002", "sibling_text": "draw cross section of ship lpg lotz of cross type of tank material of tank how tank is fixed hold space y inerting show bilge keel show sheer strake purpose of sheer strake", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Sheer strake — location, why strengthened, deck-edge / gunwale connection", "cross_family": false }, { "answer_id": "SHIPTYPE-BTC-004", "score": 0.7606675028800964, "sibling_score": 0.7606675028800964, "answer_score": null, "sibling_qid": "KOC-2026-03-0880-Q004", "sibling_text": "tanker cross section diagram", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Oil tanker hull construction — and its construction-related electrical safety", "cross_family": true }, { "answer_id": "COT-04", "score": 0.5541245698928833, "sibling_score": null, "answer_score": 0.5541245698928833, "sibling_qid": "", "sibling_text": "chemical tanker midship section and cargo tank construction label the basic hull keel bottom shell inner bottom bilge side shell and inner skin double side as fitted label cargo tank boundaries longitudinal transverse bulkheads deck vents domes cofferdams voids where required and the approved cargo pump arrangement", "sibling_family": "", "via": "answer_title", "answer_title": "Chemical-tanker midship section and cargo-tank construction", "cross_family": false } ] }, { "qid": "KOC-2025-10-0667-Q004", "text": "■Period of Roll?Formula?", "family": "", "subtopic": "Static / Dynamic Stability", "tid": "KOC-2025-10-0667", "tray": "review", "candidates": [ { "answer_id": "BK-002", "score": 0.6625603437423706, "sibling_score": 0.6625603437423706, "answer_score": 0.3735874161124229, "sibling_qid": "KOL-2026-05-4185-Q004", "sibling_text": "period of roll", "sibling_family": "", "via": "sibling", "answer_title": "How does a bilge keel reduce rolling, and how does it relate to roll period and radius of gyration?", "cross_family": false }, { "answer_id": "PAR-ROLL-004", "score": 0.6060044765472412, "sibling_score": 0.6060044765472412, "answer_score": 0.3914119303226471, "sibling_qid": "KOL-2022-09-0679-Q005", "sibling_text": "roll period formulae parametric and synchronous rolling", "sibling_family": "", "via": "sibling", "answer_title": "04. Parametric vs synchronous rolling (and the ‘sequential / prismatic’ variants)", "cross_family": false }, { "answer_id": "PAR-ROLL-001", "score": 0.6056865453720093, "sibling_score": 0.6056865453720093, "answer_score": 0.3450682997703552, "sibling_qid": "KOL-2021-12-0578-Q003", "sibling_text": "parametric rolling relation between rolling and pitching periods", "sibling_family": "", "via": "sibling", "answer_title": "01. What is parametric rolling?", "cross_family": false } ] }, { "qid": "KOC-2025-10-0667-Q012", "text": "What all are the lifebuoy onboard and difference?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "LSA Code", "tid": "KOC-2025-10-0667", "tray": "new", "candidates": [ { "answer_id": "MOB-MKR-006", "score": 0.6125547289848328, "sibling_score": 0.6125547289848328, "answer_score": 0.4977683752775192, "sibling_qid": "MUM-2026-03-0842-Q003", "sibling_text": "difference between mob marker and lifebuoy", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What is the difference between the MOB lifebuoy and a normal lifebuoy, and what is special about it?", "cross_family": false }, { "answer_id": "LSA-LB-A-002", "score": 0.6083118319511414, "sibling_score": 0.6083118319511414, "answer_score": 0.4622344046831131, "sibling_qid": "KOC-2025-01-0519-Q011", "sibling_text": "types lifeboat onboard", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Types of lifeboat — and which type on your ship", "cross_family": false }, { "answer_id": "LSA-LB-A-009", "score": 0.6041305661201477, "sibling_score": 0.6041305661201477, "answer_score": 0.4794588804244995, "sibling_qid": "KOL-2022-05-0635-Q005", "sibling_text": "diff b w life raft life boat and rescue boat regulations because of which they are on board min max capacity of liferaft", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat vs liferaft vs rescue boat — and why each is carried", "cross_family": false } ] }, { "qid": "KOC-2025-10-0669-Q006", "text": "Life boat davit maintenance?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Davit / Release Gear", "tid": "KOC-2025-10-0669", "tray": "review", "candidates": [ { "answer_id": "DRG-B-013", "score": 0.7952367663383484, "sibling_score": 0.7952367663383484, "answer_score": null, "sibling_qid": "KOC-2024-02-1327-Q010", "sibling_text": "what all maintenance done on lifeboat davit", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "The test and examination regime — and what PSC looks at", "cross_family": false }, { "answer_id": "DRG-B-006", "score": 0.7816835045814514, "sibling_score": 0.7816835045814514, "answer_score": null, "sibling_qid": "KOL-2021-12-0583-Q005", "sibling_text": "lifeboat yearly maintenance as 2e lowering and davit and fall maintenance", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Falls — maintenance, end-for-ending and renewal", "cross_family": false }, { "answer_id": "DRG-B-002", "score": 0.7693102955818176, "sibling_score": 0.7693102955818176, "answer_score": null, "sibling_qid": "KOL-2018-01-0145-Q007", "sibling_text": "long term maintenance on life boat davit winches", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "The lifeboat winch — construction, hoisting and long-term maintenance", "cross_family": false } ] }, { "qid": "KOC-2025-10-0669-Q008", "text": "What is form E?", "family": "Surveys - Statutory", "subtopic": "Certificates List", "tid": "KOC-2025-10-0669", "tray": "new", "candidates": [ { "answer_id": "CERT-LIST-P03-003", "score": 0.5652993321418762, "sibling_score": 0.5652993321418762, "answer_score": 0.3758612394332886, "sibling_qid": "KOL-2026-01-1153-Q002", "sibling_text": "what is form e in seq certificate contents of equipments and details inside form e", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Cargo Ship Safety Equipment Certificate & Form E", "cross_family": false }, { "answer_id": "PSC-004", "score": 0.47885632514953613, "sibling_score": 0.47885632514953613, "answer_score": null, "sibling_qid": "KOC-2024-08-0398-Q019", "sibling_text": "wat is form b and form a", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "4. 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What is PSC, why it is required, and its legal basis and scope", "cross_family": true } ] }, { "qid": "KOC-2025-10-0670-Q021", "text": "Amplitude of roll", "family": "", "subtopic": "Static / Dynamic Stability", "tid": "KOC-2025-10-0670", "tray": "review", "candidates": [ { "answer_id": "BK-002", "score": 0.6662293672561646, "sibling_score": 0.6662293672561646, "answer_score": null, "sibling_qid": "KOC-2026-03-0882-Q005", "sibling_text": "radius of gyration and time period of roll amplitude of roll", "sibling_family": "", "via": "sibling", "answer_title": "How does a bilge keel reduce rolling, and how does it relate to roll period and radius of gyration?", "cross_family": false }, { "answer_id": "PAR-ROLL-001", "score": 0.6503511667251587, "sibling_score": 0.6503511667251587, "answer_score": 0.41999103277921673, "sibling_qid": "KOL-2016-10-0015-Q003", "sibling_text": "parametric roll", "sibling_family": "", "via": "sibling", "answer_title": "01. 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Parametric vs synchronous rolling (and the ‘sequential / prismatic’ variants)", "cross_family": false } ] }, { "qid": "KOC-2025-10-0670-Q022", "text": "Radius of gyration", "family": "", "subtopic": "Static / Dynamic Stability", "tid": "KOC-2025-10-0670", "tray": "review", "candidates": [ { "answer_id": "BK-001", "score": 0.7234664559364319, "sibling_score": 0.7234664559364319, "answer_score": null, "sibling_qid": "KOC-2026-03-0878-Q015", "sibling_text": "raduis of gyration", "sibling_family": "", "via": "sibling", "answer_title": "What is a bilge keel and what is its purpose?", "cross_family": false }, { "answer_id": "BK-004", "score": 0.680909276008606, "sibling_score": 0.680909276008606, "answer_score": null, "sibling_qid": "KOC-2025-07-0633-Q019", "sibling_text": "how its connected radius of gyration", "sibling_family": "", "via": "sibling", "answer_title": "How is a bilge keel attached to the hull, and how is hull cracking or rupture controlled?", "cross_family": false }, { "answer_id": "BK-002", "score": 0.6116406917572021, "sibling_score": 0.6116406917572021, "answer_score": null, "sibling_qid": "KOC-2026-01-0780-Q003", "sibling_text": "radius of gyration time period of roll", "sibling_family": "", "via": "sibling", "answer_title": "How does a bilge keel reduce rolling, and how does it relate to roll period and radius of gyration?", "cross_family": false } ] }, { "qid": "KOC-2025-10-0670-Q023", "text": "Time period of roll", "family": "", "subtopic": "Static / Dynamic Stability", "tid": "KOC-2025-10-0670", "tray": "review", "candidates": [ { "answer_id": "BK-002", "score": 0.7633322477340698, "sibling_score": 0.7633322477340698, "answer_score": 0.3217920407652855, "sibling_qid": "KOL-2026-05-4185-Q004", "sibling_text": "period of roll", "sibling_family": "", "via": "sibling", "answer_title": "How does a bilge keel reduce rolling, and how does it relate to roll period and radius of gyration?", "cross_family": false }, { "answer_id": "PAR-ROLL-001", "score": 0.6008151173591614, "sibling_score": 0.6008151173591614, "answer_score": 0.32274186313152314, "sibling_qid": "KOL-2021-12-0578-Q003", "sibling_text": "parametric rolling relation between rolling and pitching periods", "sibling_family": "", "via": "sibling", "answer_title": "01. 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Parametric vs synchronous rolling (and the ‘sequential / prismatic’ variants)", "cross_family": false } ] }, { "qid": "KOC-2025-10-0670-Q025", "text": "Blubbous bow purpose ,when it is fully immersed", "family": "", "subtopic": "Bulbous Bow", "tid": "KOC-2025-10-0670", "tray": "new", "candidates": [ { "answer_id": "PPS-230-006", "score": 0.5115770697593689, "sibling_score": 0.5115770697593689, "answer_score": null, "sibling_qid": "MUM-2026-04-0896-Q004", "sibling_text": "bulbous bow how it is attached to ship why it is attached name of the wave which counteracts the original bow wave how bulbous bow improves efficiency", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Fore-end / fore-peak structure: draw and describe", "cross_family": false }, { "answer_id": "RES-BUOY-005", "score": 0.4977346658706665, "sibling_score": 0.4977346658706665, "answer_score": null, "sibling_qid": "KOC-2022-02-0062-Q004", "sibling_text": "freeboard purpose reserve buoyancy pupose", "sibling_family": "", "via": "sibling", "answer_title": "Freeboard and reserve buoyancy — the relationship", "cross_family": false }, { "answer_id": "LLST-AB-003", "score": 0.48188862204551697, "sibling_score": 0.48188862204551697, "answer_score": null, "sibling_qid": "KOL-2020-02-0396-Q002", "sibling_text": "freeboard why more in bulk", "sibling_family": "", "via": "sibling", "answer_title": "Why tankers carry less freeboard than bulk carriers and other dry-cargo ships", "cross_family": false } ] }, { "qid": "KOC-2025-10-0671-Q002", "text": "Type of ship sailed", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2025-10-0671", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8456621766090393, "sibling_score": 0.8456621766090393, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8446736931800842, "sibling_score": 0.8446736931800842, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7923666834831238, "sibling_score": 0.7923666834831238, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "KOC-2025-10-0671-Q005", "text": "Enclosed space gas detection procedure", "family": "Risk & Safety Management", "subtopic": "Enclosed Space Entry", "tid": "KOC-2025-10-0671", "tray": "review", "candidates": [ { "answer_id": "ESE-P01-009", "score": 0.847835898399353, "sibling_score": 0.847835898399353, "answer_score": 0.5380171835422516, "sibling_qid": "KOC-2026-03-0868-Q005", "sibling_text": "enclosed space gas detection procedure", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "Atmosphere checks, gases to test and safe entry limits", "cross_family": false }, { "answer_id": "ESE-P02-002", "score": 0.7492039799690247, "sibling_score": 0.7492039799690247, "answer_score": null, "sibling_qid": "KOC-2025-10-1583-Q008", "sibling_text": "enclosed space entry what all gas u check and values how o2analyser works", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "ESE-P02-02. 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The multimeter — construction, internal circuit, and how one instrument reads several different parameters", "cross_family": false } ] }, { "qid": "KOC-2025-10-0685-Q011", "text": "Draw rudder carrier bearing material of thrust ring Electrical", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOC-2025-10-0685", "tray": "review", "candidates": [ { "answer_id": "TRS-002", "score": 0.6551513075828552, "sibling_score": 0.6551513075828552, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "PRE-TEN-001", "score": 0.6333020329475403, "sibling_score": 0.6333020329475403, "answer_score": null, "sibling_qid": "MUM-2026-06-3504-Q007", "sibling_text": "rudder carrier bearing removal procedure", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Pre-stressing and pre-tensioning in main-engine bolting", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.6044340133666992, "sibling_score": 0.6044340133666992, "answer_score": null, "sibling_qid": "CHE-2026-02-0110-Q006", "sibling_text": "how rudder weight is carried key ans i said carrier bearing how it carrying explain", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false } ] }, { "qid": "KOC-2025-10-0685-Q014", "text": "Draw 3 point starter of DC motor", "family": "Electrical - Motors & Starters", "subtopic": "DC Motor Three-Point Starter", "tid": "KOC-2025-10-0685", "tray": "review", "candidates": [ { "answer_id": "SDST-A-001", "score": 0.7798309326171875, "sibling_score": 0.7798309326171875, "answer_score": 0.5274498999118805, "sibling_qid": "KOC-2026-05-2140-Q008", "sibling_text": "draw and explain 3 point starter for dc motor and star delta", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false }, { "answer_id": "TG-MOTOR-005", "score": 0.5295715034008026, "sibling_score": null, "answer_score": 0.5295715034008026, "sibling_qid": "", "sibling_text": "draw the turning gear circuit diagram and explain the starter power side supply isolator and fuses mcb fwd and rev contactors rev has two phases crossed overload relay motor control side stop plus fwd rev push buttons feeding the two coils", "sibling_family": "", "via": "answer_title", "answer_title": "Draw the turning gear circuit diagram and explain the starter.", "cross_family": false }, { "answer_id": "SDC-005", "score": 0.5170822322368621, "sibling_score": null, "answer_score": 0.5170822322368621, "sibling_qid": "", "sibling_text": "draw the delta connection three windings joined end to start in a closed loop a triangle line leads r y b taken from the three corners junctions", "sibling_family": "", "via": "answer_title", "answer_title": "Draw the delta connection", "cross_family": false } ] }, { "qid": "KOC-2025-10-0685-Q017", "text": "Gangway motor slipping electrical reasons( he is not accepting single phasing) Internal:", "family": "Electrical - Motors & Starters", "subtopic": "Single Phasing", "tid": "KOC-2025-10-0685", "tray": "review", "candidates": [ { "answer_id": "MNS-006", "score": 0.7213600277900696, "sibling_score": 0.7213600277900696, "answer_score": null, "sibling_qid": "KOC-2026-08-2123-Q002", "sibling_text": "gangway motor slipping reasons", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Gangway motor slipping — the brake is not holding", "cross_family": false }, { "answer_id": "MNS-009", "score": 0.7169855237007141, "sibling_score": 0.7169855237007141, "answer_score": null, "sibling_qid": "KOC-2025-10-1597-Q004", "sibling_text": "gangway motor tripping electrical reasons", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Motor trips on starting, or immediately after — electrical reasons and your checks", "cross_family": false }, { "answer_id": "MNS-004", "score": 0.711791455745697, "sibling_score": 0.711791455745697, "answer_score": null, "sibling_qid": "KOC-2024-04-1344-Q003", "sibling_text": "gangway motor frequent starting stopping electrical reasons", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Motor starts and then stops, again and again — frequent start/stop cycling on a gangway motor", "cross_family": false } ] }, { "qid": "KOC-2025-10-0687-Q008", "text": "ISM code explain all elements", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOC-2025-10-0687", "tray": "review", "candidates": [ { "answer_id": "ISM-ELEM-002", "score": 0.8012493252754211, "sibling_score": 0.8012493252754211, "answer_score": 0.32167472839355465, "sibling_qid": "KOC-2026-02-0832-Q008", "sibling_text": "ism code explain all elements", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the ISM Code?", "cross_family": false }, { "answer_id": "ISPS-SL-002", "score": 0.6006413102149963, "sibling_score": 0.6006413102149963, "answer_score": null, "sibling_qid": "KOL-2022-10-0689-Q046", "sibling_text": "isps code elements in this code describe", "sibling_family": "ISPS", "via": "sibling", "answer_title": "Elements, contents, functional requirements, training and equipment", "cross_family": true }, { "answer_id": "ISM-ELEM-003", "score": 0.6002798676490784, "sibling_score": 0.6002798676490784, "answer_score": 0.4742062449455261, "sibling_qid": "KOC-2026-02-0817-Q006", "sibling_text": "ism elements", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": false } ] }, { "qid": "KOC-2025-10-0687-Q009", "text": "Master overriding authority", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOC-2025-10-0687", "tray": "review", "candidates": [ { "answer_id": "ISM-AUD-P03-005", "score": 0.8714573979377747, "sibling_score": 0.8714573979377747, "answer_score": 0.43887310624122616, "sibling_qid": "CHE-2026-05-0565-Q012", "sibling_text": "master overriding authority", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Master's overriding authority", "cross_family": false }, { "answer_id": "ISM-DPA-004", "score": 0.8490877747535706, "sibling_score": 0.8490877747535706, "answer_score": 0.4797314524650574, "sibling_qid": "KOC-2023-07-0201-Q008", "sibling_text": "masters overriding authority", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Master's overriding authority and the DPA relationship (ISM chapters)", "cross_family": false }, { "answer_id": "CO2-SYS-004", "score": 0.5659246444702148, "sibling_score": 0.5659246444702148, "answer_score": null, "sibling_qid": "CHE-2025-10-0304-Q014", "sibling_text": "explain master control", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fixed CO2 total-flooding system — overview, working and arrangements", "cross_family": true } ] }, { "qid": "KOC-2025-10-0687-Q010", "text": "Master review of SMS at what interval", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOC-2025-10-0687", "tray": "review", "candidates": [ { "answer_id": "ISM-AUD-P02-006", "score": 0.8006691336631775, "sibling_score": 0.8006691336631775, "answer_score": 0.48917014598846437, "sibling_qid": "KOC-2026-02-0832-Q010", "sibling_text": "master review of sms at what interval", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Master's review, company / management review and change management", "cross_family": false }, { "answer_id": "ISM-AUDIT-P01-002", "score": 0.4972553849220276, "sibling_score": 0.4972553849220276, "answer_score": null, "sibling_qid": "CHE-2026-05-0621-Q003", "sibling_text": "ism audits certificates and intervals", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM/SMS audits and verifications — types, who conducts them, intervals and validity", "cross_family": false }, { "answer_id": "ISM-AUD-P02-004", "score": 0.48900866508483887, "sibling_score": 0.48900866508483887, "answer_score": null, "sibling_qid": "KOC-2024-05-0345-Q004", "sibling_text": "how do you do intermediate survey of sms", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "SMS contents, manuals, documents and drill records onboard", "cross_family": false } ] }, { "qid": "KOC-2025-10-0688-Q003", "text": "MLC titles explain title 2", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOC-2025-10-0688", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.6632798314094543, "sibling_score": 0.6632798314094543, "answer_score": 0.23927766978740692, "sibling_qid": "KOC-2026-05-2135-Q011", "sibling_text": "mlc titles explain title 1 explain dmlc part 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "ISM-2E-A-001", "score": 0.43724310398101807, "sibling_score": 0.43724310398101807, "answer_score": null, "sibling_qid": "CHE-2026-04-0163-Q018", "sibling_text": "role of 2e in mlc and ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Roles, duties and responsibilities of a Second Engineer under ISM/SMS", "cross_family": true }, { "answer_id": "SOLAS-CH-003", "score": 0.43327897787094116, "sibling_score": 0.43327897787094116, "answer_score": null, "sibling_qid": "KOC-2025-05-2065-Q008", "sibling_text": "explain solas chapter 2 of 2", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS Chapter II-2 - fire protection, detection and extinction", "cross_family": true } ] }, { "qid": "KOC-2025-10-0688-Q004", "text": "What is DMLC part 1 and part 2", "family": "MLC", "subtopic": "MLC / DMLC / Work-Rest", "tid": "KOC-2025-10-0688", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.6672952771186829, "sibling_score": 0.6672952771186829, "answer_score": 0.3035209238529205, "sibling_qid": "MUM-2026-05-3314-Q007", "sibling_text": "dmlc part 1 and part 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "ISM-ELEM-003", "score": 0.2293500691652298, "sibling_score": null, "answer_score": 0.2293500691652298, "sibling_qid": "", "sibling_text": "elements chapters structure of the ism code part a implementation the 12 elements 1 general 1 1 definitions 1 2 objectives 1 3 application 1 4 functional requirements for an sms", "sibling_family": "", "via": "answer_title", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": false }, { "answer_id": "GMCM-583-A-002", "score": 0.20825290456414222, "sibling_score": null, "answer_score": 0.20825290456414222, "sibling_qid": "", "sibling_text": "02 the multimeter construction internal circuit and how one instrument reads several different parameters one movement or one adc plus switched signal conditioning networks that is the whole idea dc volts series multipliers ac volts rectifier plus multipliers", "sibling_family": "", "via": "answer_title", "answer_title": "02. The multimeter — construction, internal circuit, and how one instrument reads several different parameters", "cross_family": false } ] }, { "qid": "KOC-2025-10-0688-Q011", "text": "Draw rudder carrier bearing material of thrust ring Electrical", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOC-2025-10-0688", "tray": "review", "candidates": [ { "answer_id": "TRS-002", "score": 0.6551513075828552, "sibling_score": 0.6551513075828552, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "PRE-TEN-001", "score": 0.6333019733428955, "sibling_score": 0.6333019733428955, "answer_score": null, "sibling_qid": "MUM-2026-06-3504-Q007", "sibling_text": "rudder carrier bearing removal procedure", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Pre-stressing and pre-tensioning in main-engine bolting", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.6044340133666992, "sibling_score": 0.6044340133666992, "answer_score": null, "sibling_qid": "CHE-2026-02-0110-Q006", "sibling_text": "how rudder weight is carried key ans i said carrier bearing how it carrying explain", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false } ] }, { "qid": "KOC-2025-10-0688-Q014", "text": "Draw 3 point starter of DC motor", "family": "Electrical - Motors & Starters", "subtopic": "DC Motor Three-Point Starter", "tid": "KOC-2025-10-0688", "tray": "review", "candidates": [ { "answer_id": "SDST-A-001", "score": 0.7798309922218323, "sibling_score": 0.7798309922218323, "answer_score": 0.5274498999118805, "sibling_qid": "KOC-2026-05-2140-Q008", "sibling_text": "draw and explain 3 point starter for dc motor and star delta", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false }, { "answer_id": "TG-MOTOR-005", "score": 0.5295715034008026, "sibling_score": null, "answer_score": 0.5295715034008026, "sibling_qid": "", "sibling_text": "draw the turning gear circuit diagram and explain the starter power side supply isolator and fuses mcb fwd and rev contactors rev has two phases crossed overload relay motor control side stop plus fwd rev push buttons feeding the two coils", "sibling_family": "", "via": "answer_title", "answer_title": "Draw the turning gear circuit diagram and explain the starter.", "cross_family": false }, { "answer_id": "SDC-005", "score": 0.5170822322368621, "sibling_score": null, "answer_score": 0.5170822322368621, "sibling_qid": "", "sibling_text": "draw the delta connection three windings joined end to start in a closed loop a triangle line leads r y b taken from the three corners junctions", "sibling_family": "", "via": "answer_title", "answer_title": "Draw the delta connection", "cross_family": false } ] }, { "qid": "KOC-2025-10-0688-Q017", "text": "Gangway motor slipping electrical reasons( he is not accepting single phasing) Internal:", "family": "Electrical - Motors & Starters", "subtopic": "Single Phasing", "tid": "KOC-2025-10-0688", "tray": "review", "candidates": [ { "answer_id": "MNS-006", "score": 0.7213600277900696, "sibling_score": 0.7213600277900696, "answer_score": null, "sibling_qid": "KOC-2026-08-2123-Q002", "sibling_text": "gangway motor slipping reasons", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Gangway motor slipping — the brake is not holding", "cross_family": false }, { "answer_id": "MNS-009", "score": 0.7169856429100037, "sibling_score": 0.7169856429100037, "answer_score": null, "sibling_qid": "KOC-2025-10-1597-Q004", "sibling_text": "gangway motor tripping electrical reasons", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Motor trips on starting, or immediately after — electrical reasons and your checks", "cross_family": false }, { "answer_id": "MNS-004", "score": 0.711791455745697, "sibling_score": 0.711791455745697, "answer_score": null, "sibling_qid": "KOC-2024-04-1344-Q003", "sibling_text": "gangway motor frequent starting stopping electrical reasons", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Motor starts and then stops, again and again — frequent start/stop cycling on a gangway motor", "cross_family": false } ] }, { "qid": "KOC-2025-10-0693-Q008", "text": "Transfer pump circuit and explain", "family": "Electrical - Motors & Starters", "subtopic": "Starter Panel / Control Circuit", "tid": "KOC-2025-10-0693", "tray": "new", "candidates": [ { "answer_id": "HYDRO-001", "score": 0.5375162363052368, "sibling_score": 0.5375162363052368, "answer_score": 0.45306306481361386, "sibling_qid": "KOC-2023-01-0126-Q009", "sibling_text": "circuit dia for hydrophore pump", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Draw and explain the hydrophore circuit diagram — power and control circuits, starter and safeties (one-motor version)", "cross_family": true }, { "answer_id": "HSAP-583-A-001", "score": 0.5201306343078613, "sibling_score": 0.5201306343078613, "answer_score": null, "sibling_qid": "KOC-2022-02-0956-Q010", "sibling_text": "heleshew pump diagram working", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Hele-Shaw pump: construction and working — draw and explain", "cross_family": true }, { "answer_id": "CPFE-583-001", "score": 0.5162467956542969, "sibling_score": 0.5162467956542969, "answer_score": 0.41635110676288606, "sibling_qid": "MUM-2026-05-3151-Q001", "sibling_text": "frame pump working explain", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "The Framo system — what it is, how it works, and the driving mechanism", "cross_family": true } ] }, { "qid": "KOC-2025-10-0694-Q003", "text": "Ism - objectives ,functional requirements", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOC-2025-10-0694", "tray": "review", "candidates": [ { "answer_id": "ISM-AUD-P02-003", "score": 0.7456942200660706, "sibling_score": 0.7456942200660706, "answer_score": 0.4394790470600128, "sibling_qid": "MUM-2026-09-3991-Q005", "sibling_text": "functional requirements of ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "The six functional requirements of the ISM Code (clause 1.4)", "cross_family": false }, { "answer_id": "SMSFR-001", "score": 0.7057858109474182, "sibling_score": 0.7057858109474182, "answer_score": 0.4589598417282104, "sibling_qid": "MUM-2026-06-3581-Q001", "sibling_text": "what are the functional requirements of the ism code", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What are the functional requirements of the ISM Code and the SMS — and the requirement for internal audit?", "cross_family": false }, { "answer_id": "ISM-ELEM-003", "score": 0.5410238862037658, "sibling_score": null, "answer_score": 0.5410238862037658, "sibling_qid": "", "sibling_text": "elements chapters structure of the ism code part a implementation the 12 elements 1 general 1 1 definitions 1 2 objectives 1 3 application 1 4 functional requirements for an sms", "sibling_family": "", "via": "answer_title", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": false } ] }, { "qid": "KOC-2025-10-0695-Q001", "text": "Control of documents", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOC-2025-10-0695", "tray": "new", "candidates": [ { "answer_id": "ISM-SMCDOC-A-001", "score": 0.5500442385673523, "sibling_score": 0.5500442385673523, "answer_score": null, "sibling_qid": "CHE-2025-08-0020-Q008", "sibling_text": "ism documents", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM certificates: the DOC and SMC family", "cross_family": false }, { "answer_id": "ISM-2E-C-001", "score": 0.5499191880226135, "sibling_score": 0.5499191880226135, "answer_score": null, "sibling_qid": "KOC-2024-09-0408-Q010", "sibling_text": "ism documents", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM audit / survey preparation as Second Engineer — beyond the paperwork", "cross_family": false }, { "answer_id": "ISM-AUD-P02-004", "score": 0.5494238138198853, "sibling_score": 0.5494238138198853, "answer_score": 0.3020070344209671, "sibling_qid": "CHE-2026-05-0540-Q006", "sibling_text": "ism documents", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "SMS contents, manuals, documents and drill records onboard", "cross_family": false } ] }, { "qid": "KOC-2025-10-0695-Q002", "text": "Explain ism part b chapters", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOC-2025-10-0695", "tray": "new", "candidates": [ { "answer_id": "ISM-ELEM-003", "score": 0.5973756313323975, "sibling_score": 0.5973756313323975, "answer_score": 0.3950400769710541, "sibling_qid": "KOC-2026-08-2149-Q007", "sibling_text": "ism chapters", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": false }, { "answer_id": "ISM-AUD-P02-002", "score": 0.5517086386680603, "sibling_score": 0.5517086386680603, "answer_score": null, "sibling_qid": "KOL-2019-02-3209-Q005", "sibling_text": "ism chapters specifically how many numbers", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM Code — what it is, purpose, objectives and structure", "cross_family": false }, { "answer_id": "ISM-ELEM-002", "score": 0.48899978399276733, "sibling_score": 0.48899978399276733, "answer_score": null, "sibling_qid": "KOC-2026-05-2138-Q008", "sibling_text": "ism codes describe all the codes in part a and part b", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the ISM Code?", "cross_family": false } ] }, { "qid": "KOC-2025-10-0695-Q006", "text": "WHAT all things RSO is not authorised to do", "family": "Surveys - Statutory", "subtopic": "PSC / Flag / RO / CIC / MoU", "tid": "KOC-2025-10-0695", "tray": "review", "candidates": [ { "answer_id": "IACS-324-006", "score": 0.6758811473846436, "sibling_score": 0.6758811473846436, "answer_score": 0.399451994895935, "sibling_qid": "KOC-2023-12-0255-Q003", "sibling_text": "what all actions on sro cannot perform", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "6. What actions or responsibilities cannot be assigned to an RO by the flag State?", "cross_family": false }, { "answer_id": "PSC-RO-P02-010", "score": 0.5998765230178833, "sibling_score": 0.5998765230178833, "answer_score": 0.43349745869636536, "sibling_qid": "KOC-2024-12-0489-Q003", "sibling_text": "what duties cannot be assigned to ro", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What are the duties, responsibilities and limitations of an RO?", "cross_family": false }, { "answer_id": "SVY-SCOPE-001", "score": 0.4830371141433716, "sibling_score": 0.4830371141433716, "answer_score": 0.28919189274311063, "sibling_qid": "MUM-2025-12-0627-Q007", "sibling_text": "surveys ce can not carry out", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Which statutory or Class surveys can a Chief Engineer not carry out alone?", "cross_family": false } ] }, { "qid": "KOC-2025-10-0696-Q001", "text": "Type of vessel", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2025-10-0696", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8512429594993591, "sibling_score": 0.8512429594993591, "answer_score": null, "sibling_qid": "MUM-2026-06-3384-Q001", "sibling_text": "type of vessel", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.7775112986564636, "sibling_score": 0.7775112986564636, "answer_score": null, "sibling_qid": "CHE-2026-02-0481-Q001", "sibling_text": "type of vessels sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7704837918281555, "sibling_score": 0.7704837918281555, "answer_score": 0.5232410430908203, "sibling_qid": "CHE-2026-02-0109-Q001", "sibling_text": "type of ship explain what type is your vessel explain their type and difference", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "KOC-2025-10-1056-Q002", "text": "Oil mist detector and why so many sensors required?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "OMD / Oil Mist Detector", "tid": "KOC-2025-10-1056", "tray": "review", "candidates": [ { "answer_id": "OMD-001", "score": 0.8005502820014954, "sibling_score": 0.8005502820014954, "answer_score": null, "sibling_qid": "MUM-2026-05-3268-Q002", "sibling_text": "oil mist detector and why so many sensors required", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "The OMD alarm sounds on your watch. What are your actions, the checks and crankcase inspection that follow, and what are the alarm levels?", "cross_family": false }, { "answer_id": "OWS-15PPM-003", "score": 0.5806410312652588, "sibling_score": 0.5806410312652588, "answer_score": null, "sibling_qid": "MUM-2026-02-1954-Q003", "sibling_text": "what sensor in ows oil detection", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": true }, { "answer_id": "CCE-322-006", "score": 0.568661630153656, "sibling_score": 0.568661630153656, "answer_score": null, "sibling_qid": "MUM-2026-06-3586-Q005", "sibling_text": "me oil mist detector faulty what all checks", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Testing the OMD alarm; alarm and shutdown values", "cross_family": true } ] }, { "qid": "KOC-2025-10-1056-Q003", "text": "■Voice coil drive in ME Engine?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "ELFI", "tid": "KOC-2025-10-1056", "tray": "new", "candidates": [ { "answer_id": "FIVA-220-003", "score": 0.5607918500900269, "sibling_score": 0.5607918500900269, "answer_score": null, "sibling_qid": "CHE-2025-08-0201-Q004", "sibling_text": "fiva valve which type of control it is i told voice coil drive but he asked me p pi or pid", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "FIVA control signal, controller type, voice-coil drive and fail-safe behaviour", "cross_family": false }, { "answer_id": "VTAP-001", "score": 0.5294995307922363, "sibling_score": 0.5294995307922363, "answer_score": null, "sibling_qid": "CHE-2025-12-0234-Q002", "sibling_text": "virtual tappet in me engine", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "What is the virtual tappet on a two-stroke exhaust valve, where is it, and what is it for?", "cross_family": false }, { "answer_id": "OC-UV-TRIP-001", "score": 0.5182861089706421, "sibling_score": 0.5182861089706421, "answer_score": null, "sibling_qid": "KOL-2017-01-2094-Q002", "sibling_text": "no volt coil", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Under-voltage trip / no-volt coil — purpose, working, onboard test and calibration", "cross_family": true } ] }, { "qid": "KOC-2025-10-1056-Q006", "text": "Dia of holding down bolts as per solas?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE Resilient Chock", "tid": "KOC-2025-10-1056", "tray": "new", "candidates": [ { "answer_id": "LATHE-TD-003", "score": 0.5619781017303467, "sibling_score": 0.5619781017303467, "answer_score": null, "sibling_qid": "KOC-2022-08-0973-Q007", "sibling_text": "bolt dimensions m13 1 75", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Thread cutting — lathe, taps & dies, TPI and tapping-drill size", "cross_family": true }, { "answer_id": "TR-TB-PA-006", "score": 0.5523838400840759, "sibling_score": 0.5523838400840759, "answer_score": null, "sibling_qid": "MUM-2026-09-3906-Q003", "sibling_text": "hold down bolt material specification", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Material, condition, fretting, vibration and elongation", "cross_family": true }, { "answer_id": "FB-COUP-001", "score": 0.5439252257347107, "sibling_score": 0.5439252257347107, "answer_score": 0.4205754160881042, "sibling_qid": "KOC-2026-09-2175-Q005", "sibling_text": "fitted bolts where", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What fitted bolts are, what they do, and where they sit onboard", "cross_family": true } ] }, { "qid": "KOC-2025-10-1056-Q010", "text": "There is a leak after main steam stop valve, how will you proceed?", "family": "Boilers - Construction & Components", "subtopic": "Composite Boiler", "tid": "KOC-2025-10-1056", "tray": "review", "candidates": [ { "answer_id": "BLR-TUBE-P02-002", "score": 0.653580367565155, "sibling_score": 0.653580367565155, "answer_score": 0.5193352073431015, "sibling_qid": "MUM-2024-07-1085-Q004", "sibling_text": "boiler tube leak tell him about plugging then asked if on drydock ho to get to know the thickness of tube", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Plugging a leaking boiler tube (temporary arrest)", "cross_family": false }, { "answer_id": "BLR-TUBE-P02-001", "score": 0.6520586013793945, "sibling_score": 0.6520586013793945, "answer_score": null, "sibling_qid": "KOL-2018-03-1356-Q008", "sibling_text": "exhaust valve boiler tube leaking action", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Identifying a boiler tube leak and finding the leaking tube", "cross_family": false }, { "answer_id": "BLR-TUBE-P02-003", "score": 0.6464177370071411, "sibling_score": 0.6464177370071411, "answer_score": null, "sibling_qid": "KOL-2021-09-3456-Q003", "sibling_text": "boiler tube leaking explain about the repair procedure", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Repairing, removing and renewing a boiler tube; Class formalities", "cross_family": false } ] }, { "qid": "KOC-2025-10-1057-Q005", "text": "Lube oil properties ( viscosity index and load bearing capacity is imp )", "family": "Lube Oil System", "subtopic": "Lube oil Properties", "tid": "KOC-2025-10-1057", "tray": "review", "candidates": [ { "answer_id": "VISC-IDX-002", "score": 0.844843327999115, "sibling_score": 0.844843327999115, "answer_score": 0.6491168379783631, "sibling_qid": "KOC-2026-02-1103-Q005", "sibling_text": "lube oil properties viscosity index and load bearing capacity is imp", "sibling_family": "Lube Oil System", "via": "sibling", "answer_title": "Which lube-oil properties are important, including VI and load-bearing capacity?", "cross_family": false }, { "answer_id": "LO-TEST-P01-005", "score": 0.6848535537719727, "sibling_score": 0.6848535537719727, "answer_score": 0.5507629662752151, "sibling_qid": "KOC-2026-05-0004-Q010", "sibling_text": "lub oil properties", "sibling_family": "Lube Oil System", "via": "sibling", "answer_title": "Lube-oil properties, types and selection by duty", "cross_family": false }, { "answer_id": "LO-TEST-P01-004", "score": 0.6840572357177734, "sibling_score": 0.6840572357177734, "answer_score": null, "sibling_qid": "KOC-2022-07-2031-Q007", "sibling_text": "lub oil properties viscosity index tbn sweep test", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "TBN, BN, TAN, SAN and the SAE grade", "cross_family": true } ] }, { "qid": "KOC-2025-10-1057-Q006", "text": "■how you take clearences in main engine ( told main bearing telescopic, crank pin , cross head , guide shoe and strip feeler guage) X. Main bearing method other than feeler guage ( bridge guage)", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Bearing Clearance", "tid": "KOC-2025-10-1057", "tray": "review", "candidates": [ { "answer_id": "BCL-592-002", "score": 0.9027881026268005, "sibling_score": 0.9027881026268005, "answer_score": 0.6518614053726196, "sibling_qid": "KOC-2026-02-1103-Q006", "sibling_text": "how you take clearences in main engine told main bearing telescopic crank pin cross head guide shoe and strip feeler guage x main bearing method other than feeler guage bridge guage", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Take me through all the clearances you measure on the main engine and how you take each one.", "cross_family": false }, { "answer_id": "MN-BRG-C-003", "score": 0.8055304288864136, "sibling_score": 0.8055304288864136, "answer_score": 0.6204022854566574, "sibling_qid": "KOL-2023-11-3655-Q008", "sibling_text": "how to take main bearing clearance 2 methods where will you insert depth gauge and telescopic feeler gauge", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main bearing clearance and wear-down: measuring and interpreting", "cross_family": false }, { "answer_id": "BCL-592-001", "score": 0.7732484936714172, "sibling_score": 0.7732484936714172, "answer_score": null, "sibling_qid": "KOL-2025-01-1964-Q011", "sibling_text": "main bearing clearance how to take and if bridge gauge there how to take", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you take main bearing clearance with a bridge gauge? What checks and precautions come first, and where must the crankshaft be positioned?", "cross_family": false } ] }, { "qid": "KOC-2025-10-1057-Q008", "text": "How rudder stock and carrier bearing is attached( told 2 half , fitted bolts) X does bearing turn with rudder ( i told yes.then he told that there are 2 types one turn with rudder, other dont turn with rudder)", "family": "Steering Gear & Hydraulics", "subtopic": "Tiller / Rudder Stock", "tid": "KOC-2025-10-1057", "tray": "review", "candidates": [ { "answer_id": "TRS-002", "score": 0.902672290802002, "sibling_score": 0.902672290802002, "answer_score": 0.5032464146614074, "sibling_qid": "KOC-2026-02-1103-Q008", "sibling_text": "how rudder stock and carrier bearing is attached told 2 half fitted bolts x does bearing turn with rudder i told yes then he told that there are 2 types one turn with rudder other dont turn with rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.6699206829071045, "sibling_score": 0.6699206829071045, "answer_score": null, "sibling_qid": "CHE-2026-02-0110-Q006", "sibling_text": "how rudder weight is carried key ans i said carrier bearing how it carrying explain", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "PRE-TEN-001", "score": 0.6566652655601501, "sibling_score": 0.6566652655601501, "answer_score": null, "sibling_qid": "MUM-2026-06-3504-Q007", "sibling_text": "rudder carrier bearing removal procedure", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Pre-stressing and pre-tensioning in main-engine bolting", "cross_family": false } ] }, { "qid": "KOC-2025-10-1059-Q005", "text": "Lube oil properties ( viscosity index and load bearing capacity is imp )", "family": "Lube Oil System", "subtopic": "Lube oil Properties", "tid": "KOC-2025-10-1059", "tray": "review", "candidates": [ { "answer_id": "VISC-IDX-002", "score": 0.844843327999115, "sibling_score": 0.844843327999115, "answer_score": 0.6491168379783631, "sibling_qid": "KOC-2026-02-1103-Q005", "sibling_text": "lube oil properties viscosity index and load bearing capacity is imp", "sibling_family": "Lube Oil System", "via": "sibling", "answer_title": "Which lube-oil properties are important, including VI and load-bearing capacity?", "cross_family": false }, { "answer_id": "LO-TEST-P01-005", "score": 0.6848535537719727, "sibling_score": 0.6848535537719727, "answer_score": 0.5507629662752151, "sibling_qid": "KOC-2026-05-0004-Q010", "sibling_text": "lub oil properties", "sibling_family": "Lube Oil System", "via": "sibling", "answer_title": "Lube-oil properties, types and selection by duty", "cross_family": false }, { "answer_id": "LO-TEST-P01-004", "score": 0.6840572357177734, "sibling_score": 0.6840572357177734, "answer_score": null, "sibling_qid": "KOC-2022-07-2031-Q007", "sibling_text": "lub oil properties viscosity index tbn sweep test", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "TBN, BN, TAN, SAN and the SAE grade", "cross_family": true } ] }, { "qid": "KOC-2025-10-1059-Q006", "text": "■how you take clearences in main engine ( told main bearing telescopic, crank pin , cross head , guide shoe and strip feeler guage) X. Main bearing method other than feeler guage ( bridge guage)", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Bearing Clearance", "tid": "KOC-2025-10-1059", "tray": "review", "candidates": [ { "answer_id": "BCL-592-002", "score": 0.902787983417511, "sibling_score": 0.902787983417511, "answer_score": 0.6518613040447235, "sibling_qid": "KOC-2026-02-1103-Q006", "sibling_text": "how you take clearences in main engine told main bearing telescopic crank pin cross head guide shoe and strip feeler guage x main bearing method other than feeler guage bridge guage", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Take me through all the clearances you measure on the main engine and how you take each one.", "cross_family": false }, { "answer_id": "MN-BRG-C-003", "score": 0.8055303692817688, "sibling_score": 0.8055303692817688, "answer_score": 0.6204022854566574, "sibling_qid": "KOL-2023-11-3655-Q008", "sibling_text": "how to take main bearing clearance 2 methods where will you insert depth gauge and telescopic feeler gauge", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main bearing clearance and wear-down: measuring and interpreting", "cross_family": false }, { "answer_id": "BCL-592-001", "score": 0.7732484936714172, "sibling_score": 0.7732484936714172, "answer_score": null, "sibling_qid": "KOL-2025-01-1964-Q011", "sibling_text": "main bearing clearance how to take and if bridge gauge there how to take", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you take main bearing clearance with a bridge gauge? What checks and precautions come first, and where must the crankshaft be positioned?", "cross_family": false } ] }, { "qid": "KOC-2025-10-1059-Q008", "text": "How rudder stock and carrier bearing is attached( told 2 half , fitted bolts) X does bearing turn with rudder ( i told yes.then he told that there are 2 types one turn with rudder, other dont turn with rudder)", "family": "Steering Gear & Hydraulics", "subtopic": "Tiller / Rudder Stock", "tid": "KOC-2025-10-1059", "tray": "review", "candidates": [ { "answer_id": "TRS-002", "score": 0.902672290802002, "sibling_score": 0.902672290802002, "answer_score": 0.5032464146614074, "sibling_qid": "KOC-2026-02-1103-Q008", "sibling_text": "how rudder stock and carrier bearing is attached told 2 half fitted bolts x does bearing turn with rudder i told yes then he told that there are 2 types one turn with rudder other dont turn with rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.6699206829071045, "sibling_score": 0.6699206829071045, "answer_score": null, "sibling_qid": "CHE-2026-02-0110-Q006", "sibling_text": "how rudder weight is carried key ans i said carrier bearing how it carrying explain", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "PRE-TEN-001", "score": 0.6566652059555054, "sibling_score": 0.6566652059555054, "answer_score": null, "sibling_qid": "MUM-2026-06-3504-Q007", "sibling_text": "rudder carrier bearing removal procedure", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Pre-stressing and pre-tensioning in main-engine bolting", "cross_family": false } ] }, { "qid": "KOC-2025-10-1061-Q005", "text": "Lube oil properties ( viscosity index and load bearing capacity is imp )", "family": "Lube Oil System", "subtopic": "Lube oil Properties", "tid": "KOC-2025-10-1061", "tray": "review", "candidates": [ { "answer_id": "VISC-IDX-002", "score": 0.844843327999115, "sibling_score": 0.844843327999115, "answer_score": 0.6491168379783631, "sibling_qid": "KOC-2026-02-1103-Q005", "sibling_text": "lube oil properties viscosity index and load bearing capacity is imp", "sibling_family": "Lube Oil System", "via": "sibling", "answer_title": "Which lube-oil properties are important, including VI and load-bearing capacity?", "cross_family": false }, { "answer_id": "LO-TEST-P01-005", "score": 0.6848535537719727, "sibling_score": 0.6848535537719727, "answer_score": 0.5507629662752151, "sibling_qid": "KOC-2026-05-0004-Q010", "sibling_text": "lub oil properties", "sibling_family": "Lube Oil System", "via": "sibling", "answer_title": "Lube-oil properties, types and selection by duty", "cross_family": false }, { "answer_id": "LO-TEST-P01-004", "score": 0.6840572357177734, "sibling_score": 0.6840572357177734, "answer_score": null, "sibling_qid": "KOC-2022-07-2031-Q007", "sibling_text": "lub oil properties viscosity index tbn sweep test", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "TBN, BN, TAN, SAN and the SAE grade", "cross_family": true } ] }, { "qid": "KOC-2025-10-1061-Q006", "text": "■how you take clearences in main engine ( told main bearing telescopic, crank pin , cross head , guide shoe and strip feeler guage) X. Main bearing method other than feeler guage ( bridge guage)", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Bearing Clearance", "tid": "KOC-2025-10-1061", "tray": "review", "candidates": [ { "answer_id": "BCL-592-002", "score": 0.902787983417511, "sibling_score": 0.902787983417511, "answer_score": 0.6518613040447235, "sibling_qid": "KOC-2026-02-1103-Q006", "sibling_text": "how you take clearences in main engine told main bearing telescopic crank pin cross head guide shoe and strip feeler guage x main bearing method other than feeler guage bridge guage", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Take me through all the clearances you measure on the main engine and how you take each one.", "cross_family": false }, { "answer_id": "MN-BRG-C-003", "score": 0.8055303692817688, "sibling_score": 0.8055303692817688, "answer_score": 0.6204022854566574, "sibling_qid": "KOL-2023-11-3655-Q008", "sibling_text": "how to take main bearing clearance 2 methods where will you insert depth gauge and telescopic feeler gauge", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main bearing clearance and wear-down: measuring and interpreting", "cross_family": false }, { "answer_id": "BCL-592-001", "score": 0.7732484936714172, "sibling_score": 0.7732484936714172, "answer_score": null, "sibling_qid": "KOL-2025-01-1964-Q011", "sibling_text": "main bearing clearance how to take and if bridge gauge there how to take", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you take main bearing clearance with a bridge gauge? What checks and precautions come first, and where must the crankshaft be positioned?", "cross_family": false } ] }, { "qid": "KOC-2025-10-1061-Q008", "text": "How rudder stock and carrier bearing is attached( told 2 half , fitted bolts) X does bearing turn with rudder ( i told yes.then he told that there are 2 types one turn with rudder, other dont turn with rudder)", "family": "Steering Gear & Hydraulics", "subtopic": "Tiller / Rudder Stock", "tid": "KOC-2025-10-1061", "tray": "review", "candidates": [ { "answer_id": "TRS-002", "score": 0.9026723504066467, "sibling_score": 0.9026723504066467, "answer_score": 0.5032464146614074, "sibling_qid": "KOC-2026-02-1103-Q008", "sibling_text": "how rudder stock and carrier bearing is attached told 2 half fitted bolts x does bearing turn with rudder i told yes then he told that there are 2 types one turn with rudder other dont turn with rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.6699206829071045, "sibling_score": 0.6699206829071045, "answer_score": null, "sibling_qid": "CHE-2026-02-0110-Q006", "sibling_text": "how rudder weight is carried key ans i said carrier bearing how it carrying explain", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "PRE-TEN-001", "score": 0.6566652655601501, "sibling_score": 0.6566652655601501, "answer_score": null, "sibling_qid": "MUM-2026-06-3504-Q007", "sibling_text": "rudder carrier bearing removal procedure", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Pre-stressing and pre-tensioning in main-engine bolting", "cross_family": false } ] }, { "qid": "KOC-2025-10-1063-Q003", "text": "Explain your last main engine(MAN BW 6s50 MCC)", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOC-2025-10-1063", "tray": "new", "candidates": [ { "answer_id": "ALT-MTN-B-001", "score": 0.5312665700912476, "sibling_score": 0.5312665700912476, "answer_score": null, "sibling_qid": "MUM-2026-02-1281-Q001", "sibling_text": "main engine specification mc c", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Routine onboard alternator maintenance checks", "cross_family": false }, { "answer_id": "MCC-MEB-P01-001", "score": 0.5173414945602417, "sibling_score": 0.5173414945602417, "answer_score": null, "sibling_qid": "MUM-2026-06-3596-Q002", "sibling_text": "what type of engine mcc", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "MC-C (\"Compact\") engine — design and the main constructional differences from MC", "cross_family": false }, { "answer_id": "PMAX-PCOMP-BF041-004", "score": 0.5019000768661499, "sibling_score": 0.5019000768661499, "answer_score": null, "sibling_qid": "KOC-2021-08-1765-Q013", "sibling_text": "p max of mc c engine 6s50mc c since i sailed in this", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What is Pmax on your engine?", "cross_family": true } ] }, { "qid": "KOC-2025-10-1063-Q019", "text": "■crediting the points ,what all will you sent for main bearing inspection.?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Bearing Clearance", "tid": "KOC-2025-10-1063", "tray": "review", "candidates": [ { "answer_id": "MAIN-BRG-A-001", "score": 0.7256755232810974, "sibling_score": 0.7256755232810974, "answer_score": null, "sibling_qid": "KOC-2024-02-1833-Q003", "sibling_text": "main bearing inspection", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How is a main bearing surveyed, inspected or condition-monitored?", "cross_family": false }, { "answer_id": "MAIN-BRG-D-004", "score": 0.7172136902809143, "sibling_score": 0.7172136902809143, "answer_score": null, "sibling_qid": "KOC-2025-05-2063-Q011", "sibling_text": "checks on main bearing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main bearing overhaul — jack-up, clearance check and tightening", "cross_family": false }, { "answer_id": "MN-BRG-C-003", "score": 0.7064220905303955, "sibling_score": 0.7064220905303955, "answer_score": null, "sibling_qid": "CHE-2026-05-0548-Q010", "sibling_text": "main bearing explain clearance wear and what will you do for survey", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main bearing clearance and wear-down: measuring and interpreting", "cross_family": false } ] }, { "qid": "KOC-2025-10-1580-Q001", "text": "Type of vessel sailing in", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2025-10-1580", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.82095867395401, "sibling_score": 0.82095867395401, "answer_score": null, "sibling_qid": "CHE-2026-02-0481-Q001", "sibling_text": "type of vessels sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7952095866203308, "sibling_score": 0.7952095866203308, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.7915794253349304, "sibling_score": 0.7915794253349304, "answer_score": null, "sibling_qid": "MUM-2026-06-3384-Q001", "sibling_text": "type of vessel", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false } ] }, { "qid": "KOC-2025-10-1580-Q004", "text": "Protection type of electrical equipments on deck of gas tanker(name of equipment and type of protection)?", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOC-2025-10-1580", "tray": "review", "candidates": [ { "answer_id": "TNK-SAFE-BF26-003", "score": 0.7306575775146484, "sibling_score": 0.7306575775146484, "answer_score": null, "sibling_qid": "MUM-2026-01-1911-Q002", "sibling_text": "electrical safeties on deck of tanker", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What safeties, including electrical safeties and Ex ratings, are provided on the deck of a tanker?", "cross_family": false }, { "answer_id": "ELEC-SAFE-010", "score": 0.692501425743103, "sibling_score": 0.692501425743103, "answer_score": null, "sibling_qid": "KOL-2019-10-2341-Q003", "sibling_text": "bunkering electrical means of safety description of all", "sibling_family": "", "via": "sibling", "answer_title": "Electrical safety during bunkering and tanker bunker operations", "cross_family": false }, { "answer_id": "T038-P01-001", "score": 0.6882110834121704, "sibling_score": 0.6882110834121704, "answer_score": null, "sibling_qid": "KOC-2026-04-0912-Q021", "sibling_text": "deck electrical equipments", "sibling_family": "", "via": "sibling", "answer_title": "What is a marine high-voltage system, and what counts as HV onboard?", "cross_family": false } ] }, { "qid": "KOC-2025-10-1580-Q006", "text": "Exi? Zener diode?", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOC-2025-10-1580", "tray": "review", "candidates": [ { "answer_id": "EPC-P02-01", "score": 0.673224925994873, "sibling_score": 0.673224925994873, "answer_score": 0.5242439866065979, "sibling_qid": "MUM-2026-05-3171-Q004", "sibling_text": "ex i a b and c no of zener diodes", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a zener diode? Draw its symbol, explain its working principle, and draw and explain its characteristic curve including the zener (breakdown) voltage.", "cross_family": false }, { "answer_id": "EPC-P02-03", "score": 0.6201239824295044, "sibling_score": 0.6201239824295044, "answer_score": 0.5026269972324371, "sibling_qid": "CHE-2025-10-0302-Q003", "sibling_text": "zener diode where are all they used", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Where is a zener diode used on board and why — voltage regulator, AVR, clipper — and explain one application in detail.", "cross_family": false }, { "answer_id": "EPC-P01-01", "score": 0.6134212613105774, "sibling_score": 0.6134212613105774, "answer_score": null, "sibling_qid": "KOL-2018-11-1431-Q006", "sibling_text": "what is a zener diode it s uses", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a diode? Symbol, forward and reverse bias, and the characteristic curve", "cross_family": false } ] }, { "qid": "KOC-2025-10-1582-Q010", "text": "How nxt gen starts automatically wen the running generator trips", "family": "Electrical - Generator & Alternator", "subtopic": "Black Out Test / Recovery", "tid": "KOC-2025-10-1582", "tray": "review", "candidates": [ { "answer_id": "EMG-DG-P04-004", "score": 0.795072615146637, "sibling_score": 0.795072615146637, "answer_score": null, "sibling_qid": "KOC-2025-08-1561-Q010", "sibling_text": "how nxt gen starts automatically wen the running generator trips", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Safeties, trips, protections & failure to start / come on load", "cross_family": false }, { "answer_id": "ALT-GEN-P03-001", "score": 0.607555627822876, "sibling_score": 0.607555627822876, "answer_score": null, "sibling_qid": "KOC-2023-12-1309-Q001", "sibling_text": "how generator is started", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Alternator/generator working principle and onboard electricity generation", "cross_family": false }, { "answer_id": "AEOVT-559-002", "score": 0.5987352728843689, "sibling_score": 0.5987352728843689, "answer_score": 0.43027523159980774, "sibling_qid": "MUM-2026-06-3424-Q001", "sibling_text": "generator started and trip immediately reasons", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Generator trips immediately on reaching rated rpm — reasons (governor fault and dead pickup excluded)", "cross_family": false } ] }, { "qid": "KOC-2025-10-1583-Q002", "text": "type of ship sailed (tanker) Protection for Diferent equipments in diferent hazardous region (name of equipments with type of protection)", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOC-2025-10-1583", "tray": "review", "candidates": [ { "answer_id": "TNK-SAFE-BF26-004", "score": 0.7336345911026001, "sibling_score": 0.7336345911026001, "answer_score": null, "sibling_qid": "KOC-2026-05-0032-Q002", "sibling_text": "tanker cargo tank protections", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What safeties are fitted in the ballast tank of a tanker, and what do you do if hydrocarbon is detected?", "cross_family": false }, { "answer_id": "TNK-SAFE-BF26-003", "score": 0.7305233478546143, "sibling_score": 0.7305233478546143, "answer_score": 0.551464307308197, "sibling_qid": "KOL-2026-01-1153-Q006", "sibling_text": "different type of zones in oil tanker in hazardous area example of equipments fitted in different zones", "sibling_family": "", "via": "sibling", "answer_title": "What safeties, including electrical safeties and Ex ratings, are provided on the deck of a tanker?", "cross_family": false }, { "answer_id": "HAZ-EX-B-001", "score": 0.7016239166259766, "sibling_score": 0.7016239166259766, "answer_score": null, "sibling_qid": "KOL-2025-06-2788-Q005", "sibling_text": "non intrinsically safe equipments used on tankers", "sibling_family": "", "via": "sibling", "answer_title": "Intrinsically safe (Ex i) equipment — what it is, how it works, where it is used, how you identify it", "cross_family": false } ] }, { "qid": "KOC-2025-10-1583-Q003", "text": "Seawater pump specifications with values", "family": "Electrical - Motors & Starters", "subtopic": "Motor Specification / Ordering", "tid": "KOC-2025-10-1583", "tray": "review", "candidates": [ { "answer_id": "IP-ENCL-002", "score": 0.6835554838180542, "sibling_score": 0.6835554838180542, "answer_score": null, "sibling_qid": "KOC-2025-11-1638-Q010", "sibling_text": "what is the ip rating for the main sea water pump", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Suitable IP rating by location — ER, deck, pump, generator", "cross_family": false }, { "answer_id": "IRT-A-007", "score": 0.679487407207489, "sibling_score": 0.679487407207489, "answer_score": null, "sibling_qid": "MUM-2026-02-1920-Q007", "sibling_text": "pump motor is wet with sea water action taken as 2e", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Wet or submerged motor - recovery and drying out", "cross_family": false }, { "answer_id": "PCD-P01-05", "score": 0.6750974655151367, "sibling_score": 0.6750974655151367, "answer_score": null, "sibling_qid": "KOL-2025-03-3766-Q003", "sibling_text": "sea water pump performance", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Checking centrifugal pump performance — head, flow and the MCSW check with M/E running", "cross_family": true } ] }, { "qid": "KOC-2025-10-1585-Q002", "text": "Ohaul of Induction motor procedure and checks, how the phase connected", "family": "Electrical - Motors & Starters", "subtopic": "Motor Terminals / Connections", "tid": "KOC-2025-10-1585", "tray": "review", "candidates": [ { "answer_id": "IND-MOT-A-001", "score": 0.728605329990387, "sibling_score": 0.728605329990387, "answer_score": null, "sibling_qid": "CHE-2026-04-0386-Q006", "sibling_text": "what are checks you will do in 3 phase induction motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "1. Working principle of a three-phase induction motor", "cross_family": false }, { "answer_id": "CONT-317-003", "score": 0.7230657935142517, "sibling_score": 0.7230657935142517, "answer_score": null, "sibling_qid": "MUM-2023-09-1401-Q004", "sibling_text": "motor overhauled how to do star connection how to check continuity", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Continuity to confirm terminal identity after overhaul or rewind", "cross_family": false }, { "answer_id": "IRT-C-013", "score": 0.6970884203910828, "sibling_score": 0.6970884203910828, "answer_score": null, "sibling_qid": "MUM-2026-05-3194-Q013", "sibling_text": "you sent a 3 phase induction motor for rewinding what checks will you carry out before putting it into service", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Motor back from shore / rewind — checks before commissioning", "cross_family": false } ] }, { "qid": "KOC-2025-10-1585-Q003", "text": "Draw star delta connection", "family": "Electrical - Motors & Starters", "subtopic": "Star-Delta Starter", "tid": "KOC-2025-10-1585", "tray": "review", "candidates": [ { "answer_id": "SDST-A-001", "score": 0.7244285345077515, "sibling_score": 0.7244285345077515, "answer_score": 0.40551104843616487, "sibling_qid": "KOC-2024-10-1407-Q001", "sibling_text": "draw star delta starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false }, { "answer_id": "SDC-005", "score": 0.7218183279037476, "sibling_score": 0.7218183279037476, "answer_score": 0.48279206156730653, "sibling_qid": "KOC-2021-09-1148-Q002", "sibling_text": "draw delta connection", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Draw the delta connection", "cross_family": true }, { "answer_id": "VOLT-SYS-004", "score": 0.35653780698776244, "sibling_score": null, "answer_score": 0.35653780698776244, "sibling_qid": "", "sibling_text": "drawing and identifying the three phase symbol and connections", "sibling_family": "", "via": "answer_title", "answer_title": "Drawing and identifying the three-phase symbol and connections", "cross_family": false } ] }, { "qid": "KOC-2025-10-1585-Q004", "text": "O2 analyser working principle, how value measured", "family": "Gas Detection & Instruments", "subtopic": "Explosimeter / Gas Detector", "tid": "KOC-2025-10-1585", "tray": "review", "candidates": [ { "answer_id": "COT-P02-08", "score": 0.6712734699249268, "sibling_score": 0.6712734699249268, "answer_score": 0.5565607458353042, "sibling_qid": "KOL-2022-09-0678-Q005", "sibling_text": "o2 analyser working principle", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Explain the working principle, sampling arrangement, calibration and failure response of the inert-gas oxygen analyser.", "cross_family": true }, { "answer_id": "ESE-P02-002", "score": 0.5833382606506348, "sibling_score": 0.5833382606506348, "answer_score": 0.5747704833745956, "sibling_qid": "KOC-2025-10-1583-Q008", "sibling_text": "enclosed space entry what all gas u check and values how o2analyser works", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "ESE-P02-02. Oxygen analyser: working principle and calibration", "cross_family": true }, { "answer_id": "ESE-P01-006", "score": 0.5590351819992065, "sibling_score": 0.5590351819992065, "answer_score": null, "sibling_qid": "KOL-2021-07-0519-Q002", "sibling_text": "as2 e what will be the next step after ventilation in enclosed space i have check oxygen content then he said how to check i started working principle of o2 analyser he said not that", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "Permit, SMS, permission and in-charge control for entry", "cross_family": true } ] }, { "qid": "KOC-2025-10-1585-Q009", "text": "Cast iron welding and electrode used", "family": "Workshop & Welding", "subtopic": "Cast Iron Welding", "tid": "KOC-2025-10-1585", "tray": "review", "candidates": [ { "answer_id": "WELD-B-001", "score": 0.8288794159889221, "sibling_score": 0.8288794159889221, "answer_score": 0.5018277734518051, "sibling_qid": "MUM-2026-06-3641-Q001", "sibling_text": "cast iron welding which electrode", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding & crack-repair of aluminium and cast iron, including metal stitching", "cross_family": false }, { "answer_id": "LH-ELEC-003", "score": 0.5374885559082031, "sibling_score": null, "answer_score": 0.5374885559082031, "sibling_qid": "", "sibling_text": "3 how do you select or order the correct welding electrode or rod match to base material and strength first mild steel high tensile stainless cast iron this fixes the electrode family then coating type for the duty rutile e g e6013 general basic low hydrogen e7018 crack sensitive or high tensile", "sibling_family": "", "via": "answer_title", "answer_title": "3. How do you select or order the correct welding electrode or rod?", "cross_family": false }, { "answer_id": "WELD-B-006", "score": 0.5107375860214233, "sibling_score": null, "answer_score": 0.5107375860214233, "sibling_qid": "", "sibling_text": "welding electrodes selection storage and handling selection match electrode to parent metal to welding position to available current type ac dc and size to plate thickness low hydrogen basic coated electrodes are moisture sensitive absorbed moisture becomes hydrogen in the arc causes porosity and hydrogen cold cracking", "sibling_family": "", "via": "answer_title", "answer_title": "Welding electrodes — selection, storage and handling", "cross_family": false } ] }, { "qid": "KOC-2025-10-1588-Q005", "text": "Exi safety, working Funcrion 3 repeat", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOC-2025-10-1588", "tray": "new", "candidates": [ { "answer_id": "SAE-388-002", "score": 0.4554731547832489, "sibling_score": 0.4554731547832489, "answer_score": null, "sibling_qid": "MUM-2025-09-2840-Q005", "sibling_text": "starting air line explosion safeties 4b repeat 6 pass", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "What causes a starting air line explosion, and how is it prevented?", "cross_family": false }, { "answer_id": "EXD-EXI-A-002", "score": 0.4240996837615967, "sibling_score": 0.4240996837615967, "answer_score": null, "sibling_qid": "KOC-2025-12-1667-Q007", "sibling_text": "what all safeties are there in the hazardous region i told ex d ex i exp exn exe he was expecting more regarding this ex i couldn t remember so i started explaining exi internal no questions", "sibling_family": "", "via": "sibling", "answer_title": "Ex d (flameproof / explosion-proof) — construction, shipboard applications and maintenance", "cross_family": false }, { "answer_id": "CHAIN-TENS-A-003", "score": 0.40948593616485596, "sibling_score": 0.40948593616485596, "answer_score": null, "sibling_qid": "KOL-2023-07-3619-Q005", "sibling_text": "chain tightening procedure got 6 repeat 3", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Chain Tightening Procedure — MC / MC-C / ME", "cross_family": false } ] }, { "qid": "KOC-2025-10-1590-Q003", "text": "Draw and explain 3 point starter", "family": "Electrical - Motors & Starters", "subtopic": "DC Motor Three-Point Starter", "tid": "KOC-2025-10-1590", "tray": "review", "candidates": [ { "answer_id": "STR-DEC-A-001", "score": 0.7590022683143616, "sibling_score": 0.7590022683143616, "answer_score": null, "sibling_qid": "KOC-2026-05-2133-Q010", "sibling_text": "draw and explain 3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "STARTER-DEC-B-003", "score": 0.6059737801551819, "sibling_score": 0.6059737801551819, "answer_score": null, "sibling_qid": "KOC-2023-04-1255-Q006", "sibling_text": "dol starter 3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "DOL starter — use, current, range and limits", "cross_family": false }, { "answer_id": "SDST-A-001", "score": 0.5968250036239624, "sibling_score": 0.5968250036239624, "answer_score": 0.3658474341034889, "sibling_qid": "KOC-2024-10-1415-Q002", "sibling_text": "draw and explain star dela starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false } ] }, { "qid": "KOC-2025-10-1595-Q003", "text": "How to order a motor", "family": "Electrical - Motors & Starters", "subtopic": "Motor Specification / Ordering", "tid": "KOC-2025-10-1595", "tray": "review", "candidates": [ { "answer_id": "BRG-NOM-001", "score": 0.8156090378761292, "sibling_score": 0.8156090378761292, "answer_score": null, "sibling_qid": "NOI-2026-09-0015-Q005", "sibling_text": "how to order motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Bearing Numbers, Suffixes and What to State When Ordering", "cross_family": false }, { "answer_id": "IP-ENCL-002", "score": 0.668391764163971, "sibling_score": 0.668391764163971, "answer_score": null, "sibling_qid": "KOC-2026-10-2222-Q002", "sibling_text": "how to order sea water motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Suitable IP rating by location — ER, deck, pump, generator", "cross_family": false }, { "answer_id": "SGM-ELEC-002", "score": 0.63974529504776, "sibling_score": 0.63974529504776, "answer_score": 0.49536665081977843, "sibling_qid": "MUM-2025-08-1605-Q001", "sibling_text": "steering motor type and difference from other er motors how to order motor over speed test over current test", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What type of motor is the steering gear motor, how does it differ from other engine-room motors, and how do you order one?", "cross_family": false } ] }, { "qid": "KOC-2025-10-1595-Q004", "text": "What problems u encounter after receiving the ordered motor . ( Foundation holes & shaft alignment not matching )", "family": "Electrical - Motors & Starters", "subtopic": "Motor Specification / Ordering", "tid": "KOC-2025-10-1595", "tray": "review", "candidates": [ { "answer_id": "PAL-620-003", "score": 0.8980790376663208, "sibling_score": 0.8980790376663208, "answer_score": 0.6009594887495041, "sibling_qid": "KOC-2026-03-1720-Q004", "sibling_text": "what problems u encounter after receiving the ordered motor foundation holes shaft alignment not matching", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "A motor is back from repair, or newly ordered. How do you fit it back and take the shaft alignment? What problems do you meet — foundation holes, soft foot, residues on the mounting face?", "cross_family": false }, { "answer_id": "SHAFT-ALN-001", "score": 0.632847785949707, "sibling_score": 0.632847785949707, "answer_score": 0.46347855925559994, "sibling_qid": "MUM-2026-06-3618-Q006", "sibling_text": "alignment of shaft", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Shaft alignment — methods and procedure", "cross_family": true }, { "answer_id": "PAL-620-001", "score": 0.6164689660072327, "sibling_score": 0.6164689660072327, "answer_score": null, "sibling_qid": "MUM-2025-11-2494-Q002", "sibling_text": "pump and motor alignment", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "How do you check and set the alignment between a pump and its motor? Horizontal centrifugal pump — where the dial gauge goes and what values apply.", "cross_family": true } ] }, { "qid": "KOC-2025-10-1596-Q001", "text": "Alternator voltage reducing reasons", "family": "Electrical - Generator & Alternator", "subtopic": "Voltage Dip / Droop", "tid": "KOC-2025-10-1596", "tray": "review", "candidates": [ { "answer_id": "NO-VOLT-001", "score": 0.854752242565155, "sibling_score": 0.854752242565155, "answer_score": null, "sibling_qid": "KOL-2026-02-2969-Q001", "sibling_text": "alternator voltage reducing reasons", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "The 3/E reports the generator has started but no voltage is showing — reasons, and your actions as 2/E", "cross_family": false }, { "answer_id": "RES-MAG-002", "score": 0.7747512459754944, "sibling_score": 0.7747512459754944, "answer_score": null, "sibling_qid": "KOL-2017-01-2096-Q003", "sibling_text": "alternator not developing voltage reasons", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Generator started but no voltage developing — reasons, and your action as Second Engineer", "cross_family": false }, { "answer_id": "NO-VOLT-002", "score": 0.5405679613351821, "sibling_score": null, "answer_score": 0.5405679613351821, "sibling_qid": "", "sibling_text": "after starting before taking load the voltage is lower than rated what would you do do not take load on a machine you have not explained low volts off load usually gets worse under load the maker s off load thresholds are tight more than 2 low or 2 high is a fault to be found not a tolerance to live with", "sibling_family": "", "via": "answer_title", "answer_title": "After starting, before taking load, the voltage is lower than rated — what would you do?", "cross_family": false } ] }, { "qid": "KOC-2025-10-1596-Q008", "text": "contactor maintenance", "family": "Electrical - Motors & Starters", "subtopic": "Motor Not Starting", "tid": "KOC-2025-10-1596", "tray": "new", "candidates": [ { "answer_id": "CBR-ARC-G-002", "score": 0.5965810418128967, "sibling_score": 0.5965810418128967, "answer_score": null, "sibling_qid": "CHE-2026-05-0630-Q007", "sibling_text": "acb maintenance working how many contacts are there", "sibling_family": "Electrical - Switchgear & Protection", "via": "sibling", "answer_title": "ACB construction, contacts, arc chutes, auxiliaries and VCB parts", "cross_family": true }, { "answer_id": "MNS-022", "score": 0.5923665165901184, "sibling_score": 0.5923665165901184, "answer_score": 0.4338148176670074, "sibling_qid": "KOC-2025-07-1548-Q013", "sibling_text": "faults in motor contactor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Faults in a motor contactor", "cross_family": false }, { "answer_id": "STR-DEC-A-001", "score": 0.5612636208534241, "sibling_score": 0.5612636208534241, "answer_score": null, "sibling_qid": "MUM-2022-09-1355-Q008", "sibling_text": "maintenanace on starters", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false } ] }, { "qid": "KOC-2025-10-1599-Q011", "text": "Blackout sequence( wanted to hear standby generator starts and came on before emergency generator)", "family": "Electrical - Generator & Alternator", "subtopic": "Black Out Test / Recovery", "tid": "KOC-2025-10-1599", "tray": "review", "candidates": [ { "answer_id": "EMCY-DG-P03-004", "score": 0.7251559495925903, "sibling_score": 0.7251559495925903, "answer_score": 0.5718365341424941, "sibling_qid": "KOC-2025-12-1673-Q007", "sibling_text": "blackout happened how emergency generator will get started", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Blackout sequence — starting the set and taking load back", "cross_family": false }, { "answer_id": "EMG-DG-P04-001", "score": 0.6925345063209534, "sibling_score": 0.6925345063209534, "answer_score": null, "sibling_qid": "KOC-2023-05-1257-Q002", "sibling_text": "esb sequence on how emergency generator comes on load", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Emergency generator on-load / load-test procedure", "cross_family": false }, { "answer_id": "BOT-002", "score": 0.6623019576072693, "sibling_score": 0.6623019576072693, "answer_score": 0.5011692434549332, "sibling_qid": "KOL-2019-03-3226-Q002", "sibling_text": "aux machinery starting sequence after blackout at sea crossquestions about emcy generator and pms", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "What is the blackout recovery procedure, in what sequence do the auxiliaries restart after a blackout at sea, and what is the role of the under-voltage release and where is it located?", "cross_family": false } ] }, { "qid": "KOC-2025-10-1600-Q003", "text": "How to order a motor", "family": "Electrical - Motors & Starters", "subtopic": "Motor Specification / Ordering", "tid": "KOC-2025-10-1600", "tray": "review", "candidates": [ { "answer_id": "BRG-NOM-001", "score": 0.8156090378761292, "sibling_score": 0.8156090378761292, "answer_score": null, "sibling_qid": "NOI-2026-09-0015-Q005", "sibling_text": "how to order motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Bearing Numbers, Suffixes and What to State When Ordering", "cross_family": false }, { "answer_id": "IP-ENCL-002", "score": 0.668391764163971, "sibling_score": 0.668391764163971, "answer_score": null, "sibling_qid": "KOC-2026-10-2222-Q002", "sibling_text": "how to order sea water motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Suitable IP rating by location — ER, deck, pump, generator", "cross_family": false }, { "answer_id": "SGM-ELEC-002", "score": 0.63974529504776, "sibling_score": 0.63974529504776, "answer_score": 0.49536665081977843, "sibling_qid": "MUM-2025-08-1605-Q001", "sibling_text": "steering motor type and difference from other er motors how to order motor over speed test over current test", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What type of motor is the steering gear motor, how does it differ from other engine-room motors, and how do you order one?", "cross_family": false } ] }, { "qid": "KOC-2025-10-1600-Q004", "text": "What problems u encounter after receiving the ordered motor . ( Foundation holes & shaft alignment not matching )", "family": "Electrical - Motors & Starters", "subtopic": "Motor Specification / Ordering", "tid": "KOC-2025-10-1600", "tray": "review", "candidates": [ { "answer_id": "PAL-620-003", "score": 0.8980790376663208, "sibling_score": 0.8980790376663208, "answer_score": 0.6009594887495041, "sibling_qid": "KOC-2026-03-1720-Q004", "sibling_text": "what problems u encounter after receiving the ordered motor foundation holes shaft alignment not matching", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "A motor is back from repair, or newly ordered. How do you fit it back and take the shaft alignment? What problems do you meet — foundation holes, soft foot, residues on the mounting face?", "cross_family": false }, { "answer_id": "SHAFT-ALN-001", "score": 0.632847785949707, "sibling_score": 0.632847785949707, "answer_score": 0.46347855925559994, "sibling_qid": "MUM-2026-06-3618-Q006", "sibling_text": "alignment of shaft", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Shaft alignment — methods and procedure", "cross_family": true }, { "answer_id": "PAL-620-001", "score": 0.6164689660072327, "sibling_score": 0.6164689660072327, "answer_score": null, "sibling_qid": "MUM-2025-11-2494-Q002", "sibling_text": "pump and motor alignment", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "How do you check and set the alignment between a pump and its motor? Horizontal centrifugal pump — where the dial gauge goes and what values apply.", "cross_family": true } ] }, { "qid": "KOC-2025-10-1601-Q011", "text": "MSB insulation testing in front of class surveyor ( he was ok with test switch and reducing set value and checking for alarm )", "family": "Electrical - Distribution & MSB", "subtopic": "MSB / ESB / Switchboard", "tid": "KOC-2025-10-1601", "tray": "review", "candidates": [ { "answer_id": "EFD-P02-001", "score": 0.6601266860961914, "sibling_score": 0.6601266860961914, "answer_score": 0.4722290843725204, "sibling_qid": "KOC-2026-03-1717-Q009", "sibling_text": "how to test 440v insulation low alarm infront of surveyor", "sibling_family": "", "via": "sibling", "answer_title": "Insulation / earth-fault monitor: principle, alarm value, test button, surveyor demonstration", "cross_family": false }, { "answer_id": "IR-TEST-D-008", "score": 0.5920355319976807, "sibling_score": 0.5920355319976807, "answer_score": null, "sibling_qid": "KOC-2023-03-1245-Q002", "sibling_text": "testing of low insulation on board n x", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Low or unsatisfactory IR — how you investigate and what you do", "cross_family": true }, { "answer_id": "EF-DET-P01-003", "score": 0.5869660973548889, "sibling_score": 0.5869660973548889, "answer_score": null, "sibling_qid": "MUM-2026-02-1973-Q005", "sibling_text": "low insulation alarm found msw p p low insulation what to check", "sibling_family": "", "via": "sibling", "answer_title": "Tracing and locating an earth fault or low-insulation fault on a 440V / 220V / deck circuit", "cross_family": false } ] }, { "qid": "KOC-2025-10-1605-Q001", "text": "Type of vessel sailing in", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2025-10-1605", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.82095867395401, "sibling_score": 0.82095867395401, "answer_score": null, "sibling_qid": "CHE-2026-02-0481-Q001", "sibling_text": "type of vessels sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7952095866203308, "sibling_score": 0.7952095866203308, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.7915794253349304, "sibling_score": 0.7915794253349304, "answer_score": null, "sibling_qid": "MUM-2026-06-3384-Q001", "sibling_text": "type of vessel", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false } ] }, { "qid": "KOC-2025-10-1605-Q004", "text": "Protection type of electrical equipments on deck of gas tanker(name of equipment and type of protection)?", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOC-2025-10-1605", "tray": "review", "candidates": [ { "answer_id": "TNK-SAFE-BF26-003", "score": 0.7306576371192932, "sibling_score": 0.7306576371192932, "answer_score": null, "sibling_qid": "MUM-2026-01-1911-Q002", "sibling_text": "electrical safeties on deck of tanker", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What safeties, including electrical safeties and Ex ratings, are provided on the deck of a tanker?", "cross_family": false }, { "answer_id": "ELEC-SAFE-010", "score": 0.692501425743103, "sibling_score": 0.692501425743103, "answer_score": null, "sibling_qid": "KOL-2019-10-2341-Q003", "sibling_text": "bunkering electrical means of safety description of all", "sibling_family": "", "via": "sibling", "answer_title": "Electrical safety during bunkering and tanker bunker operations", "cross_family": false }, { "answer_id": "T038-P01-001", "score": 0.68821120262146, "sibling_score": 0.68821120262146, "answer_score": null, "sibling_qid": "KOC-2026-04-0912-Q021", "sibling_text": "deck electrical equipments", "sibling_family": "", "via": "sibling", "answer_title": "What is a marine high-voltage system, and what counts as HV onboard?", "cross_family": false } ] }, { "qid": "KOC-2025-10-1605-Q006", "text": "Exi? Zener diode?", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOC-2025-10-1605", "tray": "review", "candidates": [ { "answer_id": "EPC-P02-01", "score": 0.673224925994873, "sibling_score": 0.673224925994873, "answer_score": 0.5242439866065979, "sibling_qid": "MUM-2026-05-3171-Q004", "sibling_text": "ex i a b and c no of zener diodes", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a zener diode? Draw its symbol, explain its working principle, and draw and explain its characteristic curve including the zener (breakdown) voltage.", "cross_family": false }, { "answer_id": "EPC-P02-03", "score": 0.6201239228248596, "sibling_score": 0.6201239228248596, "answer_score": 0.5026269972324371, "sibling_qid": "CHE-2025-10-0302-Q003", "sibling_text": "zener diode where are all they used", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Where is a zener diode used on board and why — voltage regulator, AVR, clipper — and explain one application in detail.", "cross_family": false }, { "answer_id": "EPC-P01-01", "score": 0.6134212017059326, "sibling_score": 0.6134212017059326, "answer_score": null, "sibling_qid": "KOL-2018-11-1431-Q006", "sibling_text": "what is a zener diode it s uses", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a diode? Symbol, forward and reverse bias, and the characteristic curve", "cross_family": false } ] }, { "qid": "KOC-2025-10-1950-Q003", "text": "definition of function 6", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOC-2025-10-1950", "tray": "new", "candidates": [ { "answer_id": "CHAIN-TENS-A-003", "score": 0.568637490272522, "sibling_score": 0.568637490272522, "answer_score": null, "sibling_qid": "MUM-2026-02-2546-Q006", "sibling_text": "6 repeat", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "Chain Tightening Procedure — MC / MC-C / ME", "cross_family": false }, { "answer_id": "BFS-257-010", "score": 0.528700053691864, "sibling_score": 0.528700053691864, "answer_score": null, "sibling_qid": "MUM-2025-05-0277-Q022", "sibling_text": "how to confirm if it s done properly got function 6", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "How to confirm soot blowing has been carried out effectively", "cross_family": true }, { "answer_id": "IMO-CODES-P03-002", "score": 0.5238940119743347, "sibling_score": 0.5238940119743347, "answer_score": null, "sibling_qid": "MUM-2026-03-0815-Q003", "sibling_text": "which function", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": false } ] }, { "qid": "KOC-2025-10-1950-Q008", "text": "Ae cylinder head stuck while removing ur actions", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Cover / Head", "tid": "KOC-2025-10-1950", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-002", "score": 0.6628883481025696, "sibling_score": 0.6628883481025696, "answer_score": 0.47504159212112423, "sibling_qid": "MUM-2026-09-3957-Q001", "sibling_text": "ae piston removal", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Seized piston in an AE liner — actions and safe removal", "cross_family": false }, { "answer_id": "AEDEC-291-007", "score": 0.6472280025482178, "sibling_score": 0.6472280025482178, "answer_score": null, "sibling_qid": "KOC-2026-05-0003-Q014", "sibling_text": "aux engine cylinder head exhaust manifold one bolt head got rounded how to remove", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "7. Liner / piston / manifold-bolt removal problems", "cross_family": true }, { "answer_id": "BBR-001", "score": 0.6445286870002747, "sibling_score": 0.6445286870002747, "answer_score": null, "sibling_qid": "CHE-2026-08-3893-Q008", "sibling_text": "broken cylinder head stud how will u remove", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "How do you extract a broken or sheared stud/bolt from machinery or structure?", "cross_family": true } ] }, { "qid": "KOC-2025-10-1952-Q003", "text": "Which function? What's the name? (MR - maintainance and repair)", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOC-2025-10-1952", "tray": "new", "candidates": [ { "answer_id": "MGPS-004", "score": 0.5540608167648315, "sibling_score": 0.5540608167648315, "answer_score": null, "sibling_qid": "KOL-2018-08-1861-Q010", "sibling_text": "maintenance on mgps", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "Maintenance checks on the MGPS, and what the MGPS drawing should show", "cross_family": true }, { "answer_id": "MSB-ESB-B-001", "score": 0.5456618666648865, "sibling_score": 0.5456618666648865, "answer_score": 0.4106851041316986, "sibling_qid": "KOL-2018-01-2170-Q004", "sibling_text": "maintenance on msb", "sibling_family": "", "via": "sibling", "answer_title": "Routine maintenance & health check of the MSB", "cross_family": false }, { "answer_id": "EXD-EXI-A-002", "score": 0.523963212966919, "sibling_score": 0.523963212966919, "answer_score": null, "sibling_qid": "KOC-2023-01-1227-Q008", "sibling_text": "exd what is maintenance carried out", "sibling_family": "", "via": "sibling", "answer_title": "Ex d (flameproof / explosion-proof) — construction, shipboard applications and maintenance", "cross_family": false } ] }, { "qid": "KOC-2025-10-1952-Q006", "text": "Any major jobs - I said ME Cylinder head replaced", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Cover / Head", "tid": "KOC-2025-10-1952", "tray": "review", "candidates": [ { "answer_id": "XHEAD-303-007", "score": 0.7158887982368469, "sibling_score": 0.7158887982368469, "answer_score": null, "sibling_qid": "KOC-2026-02-1999-Q007", "sibling_text": "cylinder head overhaul", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Crosshead inspection, survey and overhaul, including in-place overhaul", "cross_family": false }, { "answer_id": "CCH-590-002", "score": 0.6948125958442688, "sibling_score": 0.6948125958442688, "answer_score": null, "sibling_qid": "CHE-2026-03-0486-Q010", "sibling_text": "cylinder head overhauling and checks", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "How do you pressure test a cylinder head, and how do you find and rectify a leak from it?", "cross_family": false }, { "answer_id": "CYL-LINER-P03-001", "score": 0.6316700577735901, "sibling_score": 0.6316700577735901, "answer_score": null, "sibling_qid": "MUM-2026-07-3718-Q004", "sibling_text": "crack cylinder head repair", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Cracked cylinder liner — can it be repaired, and what are the options?", "cross_family": false } ] }, { "qid": "KOC-2025-10-1952-Q011", "text": "Cylinder head is stuck what is to be done? ( I said using chain block for controlled movements, jerk movements with nut put back in the stud with some gap, wd40, diesel, carbon remover etc, and jacking. He asked how to jack, I said we can only support it somewhere in the cylinder frame and he said we have to make some tool for that. I was hovering around wd40, jerk movements etc for sometime and he said as a 2E once you are stuck, you should think of new ideas instead of sticking with the same and trying repeatedly. Good point)", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Cover / Head", "tid": "KOC-2025-10-1952", "tray": "review", "candidates": [ { "answer_id": "HYD-JACK-002", "score": 0.713348925113678, "sibling_score": 0.713348925113678, "answer_score": null, "sibling_qid": "KOC-2026-02-2002-Q014", "sibling_text": "when u open cylinder head nut hydraulic jack pressed upto opening pressure but nut not opening reasons", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Hydraulic jack leaks, seizes, will not reach pressure, or nut will not loosen", "cross_family": false }, { "answer_id": "METAL-LOCK-003", "score": 0.7089863419532776, "sibling_score": 0.7089863419532776, "answer_score": null, "sibling_qid": "MUM-2026-06-3566-Q007", "sibling_text": "how to repair cylinder head i told metal lock next question metal lock", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Cold repair of cracked cast-iron parts: liner, pump/valve cage, loose bearing seat", "cross_family": false }, { "answer_id": "CCH-590-004", "score": 0.7036030292510986, "sibling_score": 0.7036030292510986, "answer_score": null, "sibling_qid": "KOC-2025-06-1918-Q006", "sibling_text": "correct procedure for lifting cylinder head", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "What is the correct procedure for lifting a cylinder head, and what checks do you make on the crane beforehand?", "cross_family": false } ] }, { "qid": "KOC-2025-10-1957-Q005", "text": "What is maximum grade of fuel can be used as per ISO 8217:2017(I said RMG380)", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Quality / CCAI", "tid": "KOC-2025-10-1957", "tray": "new", "candidates": [ { "answer_id": "FQCC-583-A-002", "score": 0.6143613457679749, "sibling_score": 0.6143613457679749, "answer_score": null, "sibling_qid": "MUM-2026-05-3258-Q002", "sibling_text": "fuel standard which iso difference between previous fuel grade iso and new one", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "ISO 8217 — the standard, and what changed from 2017 to 2024", "cross_family": false }, { "answer_id": "FQCC-583-A-001", "score": 0.6141706109046936, "sibling_score": 0.6141706109046936, "answer_score": null, "sibling_qid": "KOC-2026-03-1111-Q005", "sibling_text": "how do you define poor quality of a fuel i told high ccai value x which fuel grade high ccai told rmk 700", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "CCAI — what it is, how it is calculated, and what it is really for", "cross_family": false }, { "answer_id": "FQCC-583-A-003", "score": 0.5854310393333435, "sibling_score": 0.5854310393333435, "answer_score": 0.5626996457576752, "sibling_qid": "CHE-2026-08-3872-Q002", "sibling_text": "fuel oil grade", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel grades and marine fuel naming", "cross_family": false } ] }, { "qid": "KOC-2025-10-1957-Q013", "text": "While lifting cylinder head stuck, cannot use crane next action(chain blocks can be used)", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Cover / Head", "tid": "KOC-2025-10-1957", "tray": "new", "candidates": [ { "answer_id": "CCH-590-004", "score": 0.6446243524551392, "sibling_score": 0.6446243524551392, "answer_score": null, "sibling_qid": "KOC-2025-06-1918-Q006", "sibling_text": "correct procedure for lifting cylinder head", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "What is the correct procedure for lifting a cylinder head, and what checks do you make on the crane beforehand?", "cross_family": false }, { "answer_id": "CRANE-ER-007", "score": 0.631443977355957, "sibling_score": 0.631443977355957, "answer_score": 0.5103452444076538, "sibling_qid": "KOC-2026-03-2015-Q004", "sibling_text": "major overhaul done in ship engine crane fails what you do if using chain block then why working of chain block", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Chain block as the crane fallback: selection, advantage & principle", "cross_family": true }, { "answer_id": "HYD-JACK-002", "score": 0.6191486120223999, "sibling_score": 0.6191486120223999, "answer_score": null, "sibling_qid": "CHE-2026-02-0479-Q005S2", "sibling_text": "while removing cylinder head hydraulic jack didn t work what will you do deciding ques", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Hydraulic jack leaks, seizes, will not reach pressure, or nut will not loosen", "cross_family": true } ] }, { "qid": "KOC-2025-10-1957-Q015", "text": "Is crankcase enclosed space, if no why?", "family": "Risk & Safety Management", "subtopic": "Enclosed Space Entry", "tid": "KOC-2025-10-1957", "tray": "review", "candidates": [ { "answer_id": "CC-RELIEF-312-006", "score": 0.6854254603385925, "sibling_score": 0.6854254603385925, "answer_score": 0.5720551490783691, "sibling_qid": "KOC-2022-07-0968-Q004", "sibling_text": "is main engine crankcase a enclosed space no since it has a breather pipe but we follow checklist for safety", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Is the crankcase an enclosed space? — and the breather pipe", "cross_family": true }, { "answer_id": "ESE-P01-003", "score": 0.5795839428901672, "sibling_score": 0.5795839428901672, "answer_score": null, "sibling_qid": "KOC-2026-08-2143-Q005", "sibling_text": "enclosed space", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "General enclosed-space entry procedure as second engineer", "cross_family": false }, { "answer_id": "ESE-P02-008", "score": 0.5792369246482849, "sibling_score": 0.5792369246482849, "answer_score": null, "sibling_qid": "KOL-2018-08-0211-Q011", "sibling_text": "enclosed space", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "ESE-P02-08. Before, during and after: confirming a space is safe to enter", "cross_family": false } ] }, { "qid": "KOC-2025-10-1957-Q021", "text": "Internal- Boiler Safety valve survey what are the things to show to surveyor", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2025-10-1957", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P01-001", "score": 0.8161795735359192, "sibling_score": 0.8161795735359192, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q011", "sibling_text": "boiler safety valve setting in front of surveyor", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-002", "score": 0.7483227849006653, "sibling_score": 0.7483227849006653, "answer_score": null, "sibling_qid": "KOL-2021-11-3485-Q003", "sibling_text": "boiler internal survey when and how and wht parts u will check", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.7378636002540588, "sibling_score": 0.7378636002540588, "answer_score": null, "sibling_qid": "KOL-2022-05-1677-Q004", "sibling_text": "boiler survey when carried out", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOC-2025-10-1957-Q023", "text": "Feathering of safety valve", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2025-10-1957", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-001", "score": 0.6581578254699707, "sibling_score": 0.6581578254699707, "answer_score": null, "sibling_qid": "MUM-2026-02-1255-Q006", "sibling_text": "setting of safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "ECON-EGB-004", "score": 0.6510315537452698, "sibling_score": 0.6510315537452698, "answer_score": 0.4456120193004608, "sibling_qid": "KOL-2026-09-4304-Q003", "sibling_text": "safety valve setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Safety-valve setting after overhaul & why set higher than the boiler", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.6330783367156982, "sibling_score": 0.6330783367156982, "answer_score": null, "sibling_qid": "MUM-2026-03-2589-Q003", "sibling_text": "checks on safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false } ] }, { "qid": "KOC-2025-10-1957-Q024", "text": "Fusible plug location, material,melting point temp", "family": "Boilers - Mountings & Safety", "subtopic": "Fusible Plug", "tid": "KOC-2025-10-1957", "tray": "review", "candidates": [ { "answer_id": "FUSE-HRC-006", "score": 0.6678282022476196, "sibling_score": 0.6678282022476196, "answer_score": null, "sibling_qid": "KOL-2016-08-2064-Q002", "sibling_text": "type of fuse melting temp", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Selecting and interpreting fuse rating – current, voltage, and the motor trap", "cross_family": true }, { "answer_id": "FUSE-HRC-003", "score": 0.5949267148971558, "sibling_score": 0.5949267148971558, "answer_score": 0.4983886033296585, "sibling_qid": "KOC-2025-09-1578-Q009", "sibling_text": "thermall fuse", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Specific fuse types: cartridge, rewireable, thermal, low-current", "cross_family": true }, { "answer_id": "FUSE-HRC-004", "score": 0.5651059150695801, "sibling_score": 0.5651059150695801, "answer_score": 0.4752075672149658, "sibling_qid": "KOC-2026-05-2134-Q010", "sibling_text": "hrc fuses", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "HRC fuse – construction, operation, materials, identification", "cross_family": true } ] }, { "qid": "KOC-2025-10-1959-Q003", "text": "Which function? What's the name? (MR - maintainance and repair)", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOC-2025-10-1959", "tray": "new", "candidates": [ { "answer_id": "MGPS-004", "score": 0.5540608167648315, "sibling_score": 0.5540608167648315, "answer_score": null, "sibling_qid": "KOL-2018-08-1861-Q010", "sibling_text": "maintenance on mgps", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "Maintenance checks on the MGPS, and what the MGPS drawing should show", "cross_family": true }, { "answer_id": "MSB-ESB-B-001", "score": 0.5456618070602417, "sibling_score": 0.5456618070602417, "answer_score": 0.4106851041316986, "sibling_qid": "KOL-2018-01-2170-Q004", "sibling_text": "maintenance on msb", "sibling_family": "", "via": "sibling", "answer_title": "Routine maintenance & health check of the MSB", "cross_family": false }, { "answer_id": "EXD-EXI-A-002", "score": 0.523963212966919, "sibling_score": 0.523963212966919, "answer_score": null, "sibling_qid": "KOC-2023-01-1227-Q008", "sibling_text": "exd what is maintenance carried out", "sibling_family": "", "via": "sibling", "answer_title": "Ex d (flameproof / explosion-proof) — construction, shipboard applications and maintenance", "cross_family": false } ] }, { "qid": "KOC-2025-10-1959-Q006", "text": "Any major jobs - I said ME Cylinder head replaced", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Cover / Head", "tid": "KOC-2025-10-1959", "tray": "review", "candidates": [ { "answer_id": "XHEAD-303-007", "score": 0.7158887982368469, "sibling_score": 0.7158887982368469, "answer_score": null, "sibling_qid": "KOC-2026-02-1999-Q007", "sibling_text": "cylinder head overhaul", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Crosshead inspection, survey and overhaul, including in-place overhaul", "cross_family": false }, { "answer_id": "CCH-590-002", "score": 0.6948125958442688, "sibling_score": 0.6948125958442688, "answer_score": null, "sibling_qid": "CHE-2026-03-0486-Q010", "sibling_text": "cylinder head overhauling and checks", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "How do you pressure test a cylinder head, and how do you find and rectify a leak from it?", "cross_family": false }, { "answer_id": "CYL-LINER-P03-001", "score": 0.6316700577735901, "sibling_score": 0.6316700577735901, "answer_score": null, "sibling_qid": "MUM-2026-07-3718-Q004", "sibling_text": "crack cylinder head repair", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Cracked cylinder liner — can it be repaired, and what are the options?", "cross_family": false } ] }, { "qid": "KOC-2025-10-1959-Q011", "text": "Cylinder head is stuck what is to be done? ( I said using chain block for controlled movements, jerk movements with nut put back in the stud with some gap, wd40, diesel, carbon remover etc, and jacking. He asked how to jack, I said we can only support it somewhere in the cylinder frame and he said we have to make some tool for that. I was hovering around wd40, jerk movements etc for sometime and he said as a 2E once you are stuck, you should think of new ideas instead of sticking with the same and trying repeatedly. Good point)", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Cover / Head", "tid": "KOC-2025-10-1959", "tray": "review", "candidates": [ { "answer_id": "HYD-JACK-002", "score": 0.713348925113678, "sibling_score": 0.713348925113678, "answer_score": null, "sibling_qid": "KOC-2026-02-1998-Q014", "sibling_text": "when u open cylinder head nut hydraulic jack pressed upto opening pressure but nut not opening reasons", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Hydraulic jack leaks, seizes, will not reach pressure, or nut will not loosen", "cross_family": false }, { "answer_id": "METAL-LOCK-003", "score": 0.7089864015579224, "sibling_score": 0.7089864015579224, "answer_score": null, "sibling_qid": "MUM-2026-06-3566-Q007", "sibling_text": "how to repair cylinder head i told metal lock next question metal lock", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Cold repair of cracked cast-iron parts: liner, pump/valve cage, loose bearing seat", "cross_family": false }, { "answer_id": "CCH-590-004", "score": 0.7036030292510986, "sibling_score": 0.7036030292510986, "answer_score": null, "sibling_qid": "KOC-2025-06-1918-Q006", "sibling_text": "correct procedure for lifting cylinder head", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "What is the correct procedure for lifting a cylinder head, and what checks do you make on the crane beforehand?", "cross_family": false } ] }, { "qid": "KOC-2025-10-1964-Q002", "text": "Bottom end bearing clearance and Aux eng thrust bearing clearance", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Thrust Bearing", "tid": "KOC-2025-10-1964", "tray": "review", "candidates": [ { "answer_id": "THR-BRG-A-001", "score": 0.7164188027381897, "sibling_score": 0.7164188027381897, "answer_score": null, "sibling_qid": "KOL-2021-08-3446-Q004", "sibling_text": "how to take thrust bearing clearance in main engine is thrust bearing also present in aux engine aux engine thrust bearing position and function done with orals", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you check, measure, limit and adjust main-engine thrust bearing clearance?", "cross_family": false }, { "answer_id": "AE-CRP-007", "score": 0.7100112438201904, "sibling_score": 0.7100112438201904, "answer_score": null, "sibling_qid": "KOC-2026-09-2213-Q004", "sibling_text": "ae bottom bearing clearance", "sibling_family": "2-Stroke - 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Ballast tanks pumping Arrangements. Also asked to show Camber, shear strake, Bulwark, Freeing port", "family": "SOLAS", "subtopic": "Shell Plating / Strakes", "tid": "KOC-2025-11-0701", "tray": "review", "candidates": [ { "answer_id": "SHELL-PLT-B-001", "score": 0.7896669507026672, "sibling_score": 0.7896669507026672, "answer_score": null, "sibling_qid": "KOC-2026-03-0880-Q005", "sibling_text": "show sheer strake keel plate camber ballast tank from diagram", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Sheer strake — location, why strengthened, deck-edge / gunwale connection", "cross_family": false }, { "answer_id": "SHELL-PLT-A-003", "score": 0.7289349436759949, "sibling_score": 0.7289349436759949, "answer_score": null, "sibling_qid": "KOC-2026-04-0890-Q002", "sibling_text": "product tanker section and show in dia and cross sheer strake bilge keel camber ballast tank", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "The midship section — shell members you must mark", "cross_family": true }, { "answer_id": "PPS-230-002", "score": 0.6985480785369873, "sibling_score": 0.6985480785369873, "answer_score": null, "sibling_qid": "KOL-2019-10-0334-Q005", "sibling_text": "panting stringer and diagram of forward portion of ship", "sibling_family": "", "via": "sibling", "answer_title": "Panting beams and panting stringers: purpose in the forward structure", "cross_family": false } ] }, { "qid": "KOC-2025-11-0701-Q014", "text": "Purpose of Duct keel", "family": "SOLAS", "subtopic": "Keel & Framing", "tid": "KOC-2025-11-0701", "tray": "review", "candidates": [ { "answer_id": "KEEL-FRM-B-002", "score": 0.7081865668296814, "sibling_score": 0.7081865668296814, "answer_score": 0.5172317415475846, "sibling_qid": "KOL-2024-09-0862-Q005", "sibling_text": "duct keel purpose", "sibling_family": "", "via": "sibling", "answer_title": "Duct keel and keel arrangements", "cross_family": false }, { "answer_id": "SHELL-PLT-B-001", "score": 0.635465681552887, "sibling_score": 0.635465681552887, "answer_score": null, "sibling_qid": "KOC-2025-12-0760-Q011", "sibling_text": "uses of duct keel keel plate camber shear strake", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Sheer strake — location, why strengthened, deck-edge / gunwale connection", "cross_family": false }, { "answer_id": "SHELL-PLT-B-003", "score": 0.38764904290437696, "sibling_score": null, "answer_score": 0.38764904290437696, "sibling_qid": "", "sibling_text": "garboard and bilge strakes garboard strake bottom shell strake adjacent to the keel plate each side the a strake first lettered outboard of the keel why it matters beside the keel centre girder carries dry docking block grounding loads ties bottom plating to the keel thick amidships tapering to the ends pounding region forward an exception", "sibling_family": "", "via": "answer_title", "answer_title": "Garboard and bilge strakes", "cross_family": false } ] }, { "qid": "KOC-2025-11-0701-Q015", "text": "Emergency towing Arrangement booklet content?", "family": "Other Conventions", "subtopic": "Emergency Towing Arrangement", "tid": "KOC-2025-11-0701", "tray": "review", "candidates": [ { "answer_id": "ETA-567-001", "score": 0.8457481861114502, "sibling_score": 0.8457481861114502, "answer_score": 0.5249581456184387, "sibling_qid": "MUM-2026-03-0828-Q002", "sibling_text": "emergency towing arrangement what all parts", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Emergency towing arrangement — purpose, SOLAS requirement, standby and passing to the tug", "cross_family": false }, { "answer_id": "EICU-MAN-P01-003", "score": 0.6170351505279541, "sibling_score": 0.6170351505279541, "answer_score": null, "sibling_qid": "CHE-2026-05-0614-Q007", "sibling_text": "why emergency manouevring provided", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Main-engine manoeuvring sequence and emergency manoeuvring", "cross_family": true }, { "answer_id": "SHAFT-CPP-003", "score": 0.5816018581390381, "sibling_score": 0.5816018581390381, "answer_score": null, "sibling_qid": "KOC-2025-07-1042-Q006", "sibling_text": "cpp explain what is the emergency arrangemnt given in cpp", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "3. 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Procedure for deployment in Emergency?", "family": "Other Conventions", "subtopic": "Emergency Towing Arrangement", "tid": "KOC-2025-11-0701", "tray": "new", "candidates": [ { "answer_id": "ETA-567-001", "score": 0.5251619219779968, "sibling_score": 0.5251619219779968, "answer_score": 0.3932646349072456, "sibling_qid": "MUM-2026-03-0828-Q002", "sibling_text": "emergency towing arrangement what all parts", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Emergency towing arrangement — purpose, SOLAS requirement, standby and passing to the tug", "cross_family": false }, { "answer_id": "ELEC-SURV-006", "score": 0.5139703154563904, "sibling_score": 0.5139703154563904, "answer_score": null, "sibling_qid": "KOL-2019-11-2347-Q001", "sibling_text": "emergency equipment survey preparation", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Emergency electrical equipment — survey preparation", "cross_family": true }, { "answer_id": "SOPEP-002", "score": 0.5126761198043823, "sibling_score": 0.5126761198043823, "answer_score": null, "sibling_qid": "KOL-2016-08-0007-Q004", "sibling_text": "sopep equipemnts and plan how to proceed", "sibling_family": "MARPOL - 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What actions or responsibilities cannot be assigned to an RO by the flag State?", "cross_family": false }, { "answer_id": "PSC-RO-P02-010", "score": 0.5998765230178833, "sibling_score": 0.5998765230178833, "answer_score": 0.4334975093603134, "sibling_qid": "KOC-2024-12-0489-Q003", "sibling_text": "what duties cannot be assigned to ro", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What are the duties, responsibilities and limitations of an RO?", "cross_family": false }, { "answer_id": "SVY-SCOPE-001", "score": 0.4830371141433716, "sibling_score": 0.4830371141433716, "answer_score": 0.28919189274311063, "sibling_qid": "MUM-2025-12-0627-Q007", "sibling_text": "surveys ce can not carry out", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Which statutory or Class surveys can a Chief Engineer not carry out alone?", "cross_family": false } ] }, { "qid": "KOC-2025-11-0710-Q004", "text": "transom space and x cross question", "family": "Ship Construction & Stability", "subtopic": "Stern Frame / Transom", "tid": "KOC-2025-11-0710", "tray": "new", "candidates": [ { "answer_id": "DUS-P5-03", "score": 0.5808026194572449, "sibling_score": 0.5808026194572449, "answer_score": null, "sibling_qid": "NOI-2026-09-0006-Q003", "sibling_text": "transom space", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Stern frame construction, cross-section and rudder-axis sketch", "cross_family": false }, { "answer_id": "KEEL-FRM-B-001", "score": 0.4848893880844116, "sibling_score": 0.4848893880844116, "answer_score": null, "sibling_qid": "MUM-2026-02-0742-Q007", "sibling_text": "cross questions on frame and keel", "sibling_family": "", "via": "sibling", "answer_title": "Types of keel and keel selection", "cross_family": false }, { "answer_id": "TOP-BRC-001", "score": 0.47829973697662354, "sibling_score": 0.47829973697662354, "answer_score": 0.37845358699560167, "sibling_qid": "MUM-2025-12-0992-Q005", "sibling_text": "what is top bracing location cross", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "1. What top bracing is, where it is fitted, and why", "cross_family": true } ] }, { "qid": "KOC-2025-11-0710-Q006", "text": "Solas training manual where available and content", "family": "SOLAS - Safety Management / Training", "subtopic": "Training Manual / Booklet", "tid": "KOC-2025-11-0710", "tray": "review", "candidates": [ { "answer_id": "FIRE-P05-01", "score": 0.7490634918212891, "sibling_score": 0.7490634918212891, "answer_score": 0.48936702609062194, "sibling_qid": "MUM-2026-09-3971-Q008", "sibling_text": "solas training manual contents", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Fire-safety training manual — SOLAS II-2 Reg 15 contents and location", "cross_family": true }, { "answer_id": "LSA-CODE-003", "score": 0.5350953340530396, "sibling_score": 0.5350953340530396, "answer_score": 0.4316278576850891, "sibling_qid": "MUM-2023-03-0096-Q007", "sibling_text": "what s the difference between the instructions in lsa and training manual main difference as per solas", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "LSA Code instructions versus the ship’s training manual — the SOLAS distinction", "cross_family": true }, { "answer_id": "FSS-CODE-004", "score": 0.403613531589508, "sibling_score": null, "answer_score": 0.403613531589508, "sibling_qid": "", "sibling_text": "where do you find fire fighting requirements and equipment maintenance procedures and how would you learn the fss code has changed requirements and system specs fss code systems solas ii 2 requirements the statutory source on board maker s manuals fire safety training manual ii 2 reg 15 fire safety operational booklet fire control plan muster list", "sibling_family": "", "via": "answer_title", "answer_title": "Where do you find fire-fighting requirements and equipment-maintenance procedures, and how would you learn the FSS Code has changed?", "cross_family": false } ] }, { "qid": "KOC-2025-11-0710-Q008", "text": "enclosed space entry", "family": "Risk & Safety Management", "subtopic": "Enclosed Space Entry", "tid": "KOC-2025-11-0710", "tray": "review", "candidates": [ { "answer_id": "ESE-P01-003", "score": 0.8056669235229492, "sibling_score": 0.8056669235229492, "answer_score": 0.34995359629392625, "sibling_qid": "CHE-2026-04-0163-Q012", "sibling_text": "enclose space entry checks", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "General enclosed-space entry procedure as second engineer", "cross_family": false }, { "answer_id": "ESE-P02-008", "score": 0.7310178279876709, "sibling_score": 0.7310178279876709, "answer_score": null, "sibling_qid": "KOL-2019-03-0272-Q003", "sibling_text": "enclose space pre entry during entry after completion check", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "ESE-P02-08. Before, during and after: confirming a space is safe to enter", "cross_family": false }, { "answer_id": "ESE-P01-001", "score": 0.36432718634605404, "sibling_score": null, "answer_score": 0.36432718634605404, "sibling_qid": "", "sibling_text": "definition and criteria of an enclosed space enclosed space a space that may contain a hazardous atmosphere or lack oxygen and has any of these characteristics limited openings inadequate ventilation or not designed for continuous human occupancy any one suffices imo msc 581 110 definition 2 1 in force 3 december 2025 revoking a 1050 27 the danger is the atmosphere oxygen deficiency oxygen enrichm", "sibling_family": "", "via": "answer_title", "answer_title": "Definition and criteria of an enclosed space", "cross_family": false } ] }, { "qid": "KOC-2025-11-0711-Q004", "text": "Cargo ship safety survey preparations as second engineer", "family": "Surveys - Statutory", "subtopic": "Safety Construction / Cargo Safety Cert", "tid": "KOC-2025-11-0711", "tray": "review", "candidates": [ { "answer_id": "SEQ-330-002", "score": 0.7107337117195129, "sibling_score": 0.7107337117195129, "answer_score": 0.6150076389312744, "sibling_qid": "MUM-2025-07-0354-Q002", "sibling_text": "how to prepare ship for safety survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Preparing the ship for the Safety Equipment survey as Second Engineer", "cross_family": false }, { "answer_id": "LLC-SURV-P02-001", "score": 0.6964445114135742, "sibling_score": 0.6964445114135742, "answer_score": null, "sibling_qid": "KOL-2021-07-3435-Q002", "sibling_text": "what all preparations done as 2nd eng for load line survey", "sibling_family": "", "via": "sibling", "answer_title": "1. Load line survey preparation: readiness, weather-tight checks and attendance", "cross_family": false }, { "answer_id": "LLC-SURV-P01-001", "score": 0.6863306760787964, "sibling_score": 0.6863306760787964, "answer_score": 0.5996803760528564, "sibling_qid": "MUM-2026-02-0737-Q001", "sibling_text": "as a 2nd engineer how to prepare e r for loadline survey i started from documents he shout and say as a 2nd engieer ur responsibility is to prepare engine room for docs and all captain and c e is there", "sibling_family": "", "via": "sibling", "answer_title": "Load line survey preparation as Second Engineer: engine-room scope, machinery openings, tanks/vents, valves and overboard checks", "cross_family": false } ] }, { "qid": "KOC-2025-11-0713-Q008", "text": "Ballast tank gas detection system", "family": "Gas Detection & Instruments", "subtopic": "Explosimeter / Gas Detector", "tid": "KOC-2025-11-0713", "tray": "review", "candidates": [ { "answer_id": "TNK-SAFE-BF26-004", "score": 0.761637806892395, "sibling_score": 0.761637806892395, "answer_score": 0.5529618322849273, "sibling_qid": "KOC-2023-03-0165-Q005", "sibling_text": "safeties in ballast tank fixed gas detection system working", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What safeties are fitted in the ballast tank of a tanker, and what do you do if hydrocarbon is detected?", "cross_family": true }, { "answer_id": "GAS-DET-005", "score": 0.6600959300994873, "sibling_score": 0.6600959300994873, "answer_score": 0.5381107091903686, "sibling_qid": "MUM-2025-08-2828-Q008", "sibling_text": "gas detectors used on tankers tanlscope why and when", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Tankscope: purpose, working, when to use, gases measured", "cross_family": true }, { "answer_id": "GAS-DET-001", "score": 0.6404550671577454, "sibling_score": 0.6404550671577454, "answer_score": null, "sibling_qid": "MUM-2023-06-0104-Q012", "sibling_text": "gas detection system on ships", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Fixed gas detection system on a gas carrier (cargo area / \"pump room\")", "cross_family": true } ] }, { "qid": "KOC-2025-11-0714-Q001", "text": "Control of documents", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOC-2025-11-0714", "tray": "new", "candidates": [ { "answer_id": "ISM-SMCDOC-A-001", "score": 0.5500442385673523, "sibling_score": 0.5500442385673523, "answer_score": null, "sibling_qid": "CHE-2025-08-0020-Q008", "sibling_text": "ism documents", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM certificates: the DOC and SMC family", "cross_family": false }, { "answer_id": "ISM-2E-C-001", "score": 0.5499191880226135, "sibling_score": 0.5499191880226135, "answer_score": null, "sibling_qid": "KOC-2024-09-0408-Q010", "sibling_text": "ism documents", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM audit / survey preparation as Second Engineer — beyond the paperwork", "cross_family": false }, { "answer_id": "ISM-AUD-P02-004", "score": 0.5494238138198853, "sibling_score": 0.5494238138198853, "answer_score": 0.3020070344209671, "sibling_qid": "CHE-2026-05-0540-Q006", "sibling_text": "ism documents", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "SMS contents, manuals, documents and drill records onboard", "cross_family": false } ] }, { "qid": "KOC-2025-11-0714-Q002", "text": "Explain ism part b chapters", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOC-2025-11-0714", "tray": "new", "candidates": [ { "answer_id": "ISM-ELEM-003", "score": 0.5973756313323975, "sibling_score": 0.5973756313323975, "answer_score": 0.3950400769710541, "sibling_qid": "KOC-2026-08-2149-Q007", "sibling_text": "ism chapters", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": false }, { "answer_id": "ISM-AUD-P02-002", "score": 0.5517086386680603, "sibling_score": 0.5517086386680603, "answer_score": null, "sibling_qid": "KOL-2019-02-3209-Q005", "sibling_text": "ism chapters specifically how many numbers", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM Code — what it is, purpose, objectives and structure", "cross_family": false }, { "answer_id": "ISM-ELEM-002", "score": 0.4889998137950897, "sibling_score": 0.4889998137950897, "answer_score": null, "sibling_qid": "KOC-2026-05-2138-Q008", "sibling_text": "ism codes describe all the codes in part a and part b", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the ISM Code?", "cross_family": false } ] }, { "qid": "KOC-2025-11-0714-Q006", "text": "WHAT all things RSO is not authorised to do", "family": "Surveys - Statutory", "subtopic": "PSC / Flag / RO / CIC / MoU", "tid": "KOC-2025-11-0714", "tray": "review", "candidates": [ { "answer_id": "IACS-324-006", "score": 0.6758810877799988, "sibling_score": 0.6758810877799988, "answer_score": 0.399451994895935, "sibling_qid": "KOC-2023-12-0255-Q003", "sibling_text": "what all actions on sro cannot perform", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "6. What actions or responsibilities cannot be assigned to an RO by the flag State?", "cross_family": false }, { "answer_id": "PSC-RO-P02-010", "score": 0.5998765230178833, "sibling_score": 0.5998765230178833, "answer_score": 0.43349745869636536, "sibling_qid": "KOC-2024-12-0489-Q003", "sibling_text": "what duties cannot be assigned to ro", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What are the duties, responsibilities and limitations of an RO?", "cross_family": false }, { "answer_id": "SVY-SCOPE-001", "score": 0.4830371141433716, "sibling_score": 0.4830371141433716, "answer_score": 0.28919189274311063, "sibling_qid": "MUM-2025-12-0627-Q007", "sibling_text": "surveys ce can not carry out", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Which statutory or Class surveys can a Chief Engineer not carry out alone?", "cross_family": false } ] }, { "qid": "KOC-2025-11-0715-Q005", "text": "Type of ships sailed", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2025-11-0715", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8041890263557434, "sibling_score": 0.8041890263557434, "answer_score": null, "sibling_qid": "MUM-2026-02-1272-Q002", "sibling_text": "type of ships sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7888221144676208, "sibling_score": 0.7888221144676208, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7690025568008423, "sibling_score": 0.7690025568008423, "answer_score": 0.5072725266218185, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "KOC-2025-11-0715-Q007", "text": "Draw rudder carrier bearing , how it is lubricated thrust ring material", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOC-2025-11-0715", "tray": "new", "candidates": [ { "answer_id": "TRS-002", "score": 0.6159980893135071, "sibling_score": 0.6159980893135071, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "PRE-TEN-001", "score": 0.6083770394325256, "sibling_score": 0.6083770394325256, "answer_score": null, "sibling_qid": "MUM-2026-06-3504-Q007", "sibling_text": "rudder carrier bearing removal procedure", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Pre-stressing and pre-tensioning in main-engine bolting", "cross_family": false }, { "answer_id": "THRUST-BRG-B-002", "score": 0.6008950471878052, "sibling_score": 0.6008950471878052, "answer_score": 0.47715569734573365, "sibling_qid": "KOC-2026-04-2020-Q009", "sibling_text": "thrust bearing how is it lubricated and material of thrust pads and bearing x white metal composition internal no qstn", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Thrust pads — lubrication and material", "cross_family": true } ] }, { "qid": "KOC-2025-11-0715-Q008", "text": "Ism contents", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOC-2025-11-0715", "tray": "review", "candidates": [ { "answer_id": "ISM-ELEM-003", "score": 0.7651498317718506, "sibling_score": 0.7651498317718506, "answer_score": 0.39397689402103425, "sibling_qid": "MUM-2026-02-0783-Q003", "sibling_text": "ism contents", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": false }, { "answer_id": "ISM-ELEM-002", "score": 0.609286904335022, "sibling_score": 0.609286904335022, "answer_score": null, "sibling_qid": "MUM-2026-02-0790-Q002", "sibling_text": "ism full details", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the ISM Code?", "cross_family": false }, { "answer_id": "ISM-AUDIT-P01-002", "score": 0.6074085831642151, "sibling_score": 0.6074085831642151, "answer_score": null, "sibling_qid": "KOC-2026-05-0049-Q005", "sibling_text": "ism survey only documentation contents of sms", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM/SMS audits and verifications — types, who conducts them, intervals and validity", "cross_family": false } ] }, { "qid": "KOC-2025-11-0716-Q003", "text": "MLC titles explain title 2", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOC-2025-11-0716", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.6632798314094543, "sibling_score": 0.6632798314094543, "answer_score": 0.23927766978740692, "sibling_qid": "KOC-2026-05-2135-Q011", "sibling_text": "mlc titles explain title 1 explain dmlc part 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "ISM-2E-A-001", "score": 0.43724313378334045, "sibling_score": 0.43724313378334045, "answer_score": null, "sibling_qid": "CHE-2026-04-0163-Q018", "sibling_text": "role of 2e in mlc and ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Roles, duties and responsibilities of a Second Engineer under ISM/SMS", "cross_family": true }, { "answer_id": "SOLAS-CH-003", "score": 0.43327897787094116, "sibling_score": 0.43327897787094116, "answer_score": null, "sibling_qid": "KOC-2025-05-2065-Q008", "sibling_text": "explain solas chapter 2 of 2", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS Chapter II-2 - fire protection, detection and extinction", "cross_family": true } ] }, { "qid": "KOC-2025-11-0716-Q004", "text": "What is DMLC part 1 and part 2", "family": "MLC", "subtopic": "MLC / DMLC / Work-Rest", "tid": "KOC-2025-11-0716", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.6672952771186829, "sibling_score": 0.6672952771186829, "answer_score": 0.3035209238529205, "sibling_qid": "MUM-2026-05-3314-Q007", "sibling_text": "dmlc part 1 and part 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "ISM-ELEM-003", "score": 0.2293500691652298, "sibling_score": null, "answer_score": 0.2293500691652298, "sibling_qid": "", "sibling_text": "elements chapters structure of the ism code part a implementation the 12 elements 1 general 1 1 definitions 1 2 objectives 1 3 application 1 4 functional requirements for an sms", "sibling_family": "", "via": "answer_title", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": false }, { "answer_id": "GMCM-583-A-002", "score": 0.20825290456414222, "sibling_score": null, "answer_score": 0.20825290456414222, "sibling_qid": "", "sibling_text": "02 the multimeter construction internal circuit and how one instrument reads several different parameters one movement or one adc plus switched signal conditioning networks that is the whole idea dc volts series multipliers ac volts rectifier plus multipliers", "sibling_family": "", "via": "answer_title", "answer_title": "02. The multimeter — construction, internal circuit, and how one instrument reads several different parameters", "cross_family": false } ] }, { "qid": "KOC-2025-11-0716-Q011", "text": "Draw rudder carrier bearing material of thrust ring Electrical", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOC-2025-11-0716", "tray": "review", "candidates": [ { "answer_id": "TRS-002", "score": 0.6551513075828552, "sibling_score": 0.6551513075828552, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "PRE-TEN-001", "score": 0.6333020329475403, "sibling_score": 0.6333020329475403, "answer_score": null, "sibling_qid": "MUM-2026-06-3504-Q007", "sibling_text": "rudder carrier bearing removal procedure", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Pre-stressing and pre-tensioning in main-engine bolting", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.604434072971344, "sibling_score": 0.604434072971344, "answer_score": null, "sibling_qid": "CHE-2026-02-0110-Q006", "sibling_text": "how rudder weight is carried key ans i said carrier bearing how it carrying explain", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false } ] }, { "qid": "KOC-2025-11-0716-Q014", "text": "Draw 3 point starter of DC motor", "family": "Electrical - Motors & Starters", "subtopic": "DC Motor Three-Point Starter", "tid": "KOC-2025-11-0716", "tray": "review", "candidates": [ { "answer_id": "SDST-A-001", "score": 0.7798309922218323, "sibling_score": 0.7798309922218323, "answer_score": 0.5274498999118805, "sibling_qid": "KOC-2026-05-2140-Q008", "sibling_text": "draw and explain 3 point starter for dc motor and star delta", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false }, { "answer_id": "TG-MOTOR-005", "score": 0.5295715034008026, "sibling_score": null, "answer_score": 0.5295715034008026, "sibling_qid": "", "sibling_text": "draw the turning gear circuit diagram and explain the starter power side supply isolator and fuses mcb fwd and rev contactors rev has two phases crossed overload relay motor control side stop plus fwd rev push buttons feeding the two coils", "sibling_family": "", "via": "answer_title", "answer_title": "Draw the turning gear circuit diagram and explain the starter.", "cross_family": false }, { "answer_id": "SDC-005", "score": 0.5170822322368621, "sibling_score": null, "answer_score": 0.5170822322368621, "sibling_qid": "", "sibling_text": "draw the delta connection three windings joined end to start in a closed loop a triangle line leads r y b taken from the three corners junctions", "sibling_family": "", "via": "answer_title", "answer_title": "Draw the delta connection", "cross_family": false } ] }, { "qid": "KOC-2025-11-0716-Q017", "text": "Gangway motor slipping electrical reasons( he is not accepting single phasing) Internal:", "family": "Electrical - Motors & Starters", "subtopic": "Single Phasing", "tid": "KOC-2025-11-0716", "tray": "review", "candidates": [ { "answer_id": "MNS-006", "score": 0.720230221748352, "sibling_score": 0.720230221748352, "answer_score": null, "sibling_qid": "KOC-2026-08-2123-Q002", "sibling_text": "gangway motor slipping reasons", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Gangway motor slipping — the brake is not holding", "cross_family": false }, { "answer_id": "MNS-009", "score": 0.7157250642776489, "sibling_score": 0.7157250642776489, "answer_score": null, "sibling_qid": "KOC-2025-10-1597-Q004", "sibling_text": "gangway motor tripping electrical reasons", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Motor trips on starting, or immediately after — electrical reasons and your checks", "cross_family": false }, { "answer_id": "MNS-004", "score": 0.7109343409538269, "sibling_score": 0.7109343409538269, "answer_score": null, "sibling_qid": "KOC-2024-04-1344-Q003", "sibling_text": "gangway motor frequent starting stopping electrical reasons", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Motor starts and then stops, again and again — frequent start/stop cycling on a gangway motor", "cross_family": false } ] }, { "qid": "KOC-2025-11-0718-Q007", "text": "MEPC 83 Internal No questions", "family": "IMO Structure & Conventions", "subtopic": "Latest MEPC Outcomes / GHG Strategy", "tid": "KOC-2025-11-0718", "tray": "review", "candidates": [ { "answer_id": "AV6-P01-01", "score": 0.6660653948783875, "sibling_score": 0.6660653948783875, "answer_score": null, "sibling_qid": "KOC-2026-03-0884-Q005", "sibling_text": "mepc 83", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Explain the latest Annex VI amendment or MEPC development, and state its date and status.", "cross_family": false }, { "answer_id": "IMO-5PIL-009", "score": 0.5375747084617615, "sibling_score": 0.5375747084617615, "answer_score": null, "sibling_qid": "MUM-2026-07-3822-Q002", "sibling_text": "mepc 83 outcome", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Latest MEPC meeting — highlights", "cross_family": false }, { "answer_id": "MEPC-GHG-003", "score": 0.5217221975326538, "sibling_score": 0.5217221975326538, "answer_score": null, "sibling_qid": "KOC-2024-05-0338-Q008", "sibling_text": "mepc 80 when what", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Explain MEPC 80 — when was it held and what was decided?", "cross_family": true } ] }, { "qid": "KOC-2025-11-0719-Q001", "text": "Type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2025-11-0719", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.837036669254303, "sibling_score": 0.837036669254303, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.801808774471283, "sibling_score": 0.801808774471283, "answer_score": 0.5473706603050231, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8005447387695312, "sibling_score": 0.8005447387695312, "answer_score": 0.5217237085103988, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "KOC-2025-11-0719-Q002", "text": "Why called aframax", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2025-11-0719", "tray": "new", "candidates": [ { "answer_id": "TONN-008", "score": 0.488385945558548, "sibling_score": 0.488385945558548, "answer_score": null, "sibling_qid": "KOC-2026-03-0880-Q015", "sibling_text": "difference between vlcc ulcc aframax suezmax interms of dwt", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Ship / Tanker Size Classes by Deadweight", "cross_family": false }, { "answer_id": "TKR-TYPE-003", "score": 0.4853714108467102, "sibling_score": 0.4853714108467102, "answer_score": 0.3498859345912933, "sibling_qid": "KOL-2017-03-0070-Q001", "sibling_text": "what is aframax crude tankers latest amendments tank ventilation amendments", "sibling_family": "Cargo Ops - 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Tanker size classes — Panamax, Aframax, Suezmax, VLCC, ULCC", "cross_family": true }, { "answer_id": "FQCC-583-A-004", "score": 0.47290611267089844, "sibling_score": 0.47290611267089844, "answer_score": null, "sibling_qid": "KOL-2025-07-4060-Q003", "sibling_text": "why mixed fame in fuel oil", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "FAME — what it is, why it is blended, and the limits", "cross_family": true } ] }, { "qid": "KOC-2025-11-0719-Q009", "text": "What is cow", "family": "MARPOL - Annex I (Oil)", "subtopic": "COW / Crude Oil Wash", "tid": "KOC-2025-11-0719", "tray": "review", "candidates": [ { "answer_id": "COW-593-005", "score": 0.6581823229789734, "sibling_score": 0.6581823229789734, "answer_score": null, "sibling_qid": "KOL-2025-01-1796-Q001", "sibling_text": "cow advantage why cow from when cow type of cow", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Why do we crude oil wash, and what are its advantages?", "cross_family": false }, { "answer_id": "COW-593-006", "score": 0.6464242935180664, "sibling_score": 0.6464242935180664, "answer_score": null, "sibling_qid": "MUM-2021-01-0008-Q003", "sibling_text": "cow methods", "sibling_family": "MARPOL - 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Ballast tanks pumping Arrangements. Also asked to show Camber, shear strake, Bulwark, Freeing port", "family": "SOLAS", "subtopic": "Shell Plating / Strakes", "tid": "KOC-2025-11-0721", "tray": "review", "candidates": [ { "answer_id": "SHELL-PLT-B-001", "score": 0.7902621626853943, "sibling_score": 0.7902621626853943, "answer_score": null, "sibling_qid": "KOC-2026-03-0880-Q005", "sibling_text": "show sheer strake keel plate camber ballast tank from diagram", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Sheer strake — location, why strengthened, deck-edge / gunwale connection", "cross_family": false }, { "answer_id": "SHELL-PLT-A-003", "score": 0.7294239401817322, "sibling_score": 0.7294239401817322, "answer_score": null, "sibling_qid": "KOC-2026-04-0890-Q002", "sibling_text": "product tanker section and show in dia and cross sheer strake bilge keel camber ballast tank", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "The midship section — shell members you must mark", "cross_family": true }, { "answer_id": "PPS-230-002", "score": 0.6992394328117371, "sibling_score": 0.6992394328117371, "answer_score": null, "sibling_qid": "KOL-2019-10-0334-Q005", "sibling_text": "panting stringer and diagram of forward portion of ship", "sibling_family": "", "via": "sibling", "answer_title": "Panting beams and panting stringers: purpose in the forward structure", "cross_family": false } ] }, { "qid": "KOC-2025-11-0721-Q014", "text": "Purpose of Duct keel", "family": "SOLAS", "subtopic": "Keel & Framing", "tid": "KOC-2025-11-0721", "tray": "review", "candidates": [ { "answer_id": "KEEL-FRM-B-002", "score": 0.7077316045761108, "sibling_score": 0.7077316045761108, "answer_score": 0.5171436369419098, "sibling_qid": "KOL-2024-09-0862-Q005", "sibling_text": "duct keel purpose", "sibling_family": "", "via": "sibling", "answer_title": "Duct keel and keel arrangements", "cross_family": false }, { "answer_id": "SHELL-PLT-B-001", "score": 0.634869396686554, "sibling_score": 0.634869396686554, "answer_score": null, "sibling_qid": "KOC-2025-12-0760-Q011", "sibling_text": "uses of duct keel keel plate camber shear strake", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Sheer strake — location, why strengthened, deck-edge / gunwale connection", "cross_family": false }, { "answer_id": "SHELL-PLT-B-003", "score": 0.38689767122268676, "sibling_score": null, "answer_score": 0.38689767122268676, "sibling_qid": "", "sibling_text": "garboard and bilge strakes garboard strake bottom shell strake adjacent to the keel plate each side the a strake first lettered outboard of the keel why it matters beside the keel centre girder carries dry docking block grounding loads ties bottom plating to the keel thick amidships tapering to the ends pounding region forward an exception", "sibling_family": "", "via": "answer_title", "answer_title": "Garboard and bilge strakes", "cross_family": false } ] }, { "qid": "KOC-2025-11-0721-Q015", "text": "Emergency towing Arrangement booklet content?", "family": "Other Conventions", "subtopic": "Emergency Towing Arrangement", "tid": "KOC-2025-11-0721", "tray": "review", "candidates": [ { "answer_id": "ETA-567-001", "score": 0.845602810382843, "sibling_score": 0.845602810382843, "answer_score": 0.524982413649559, "sibling_qid": "MUM-2026-03-0828-Q002", "sibling_text": "emergency towing arrangement what all parts", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Emergency towing arrangement — purpose, SOLAS requirement, standby and passing to the tug", "cross_family": false }, { "answer_id": "EICU-MAN-P01-003", "score": 0.6168850660324097, "sibling_score": 0.6168850660324097, "answer_score": null, "sibling_qid": "CHE-2026-05-0614-Q007", "sibling_text": "why emergency manouevring provided", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Main-engine manoeuvring sequence and emergency manoeuvring", "cross_family": true }, { "answer_id": "SHAFT-CPP-003", "score": 0.5830792188644409, "sibling_score": 0.5830792188644409, "answer_score": null, "sibling_qid": "KOC-2025-07-1042-Q006", "sibling_text": "cpp explain what is the emergency arrangemnt given in cpp", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "3. 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Running-in, gradual loading, confirming run-in", "cross_family": false }, { "answer_id": "TG-MOTOR-005", "score": 0.5030877590179443, "sibling_score": 0.5030877590179443, "answer_score": 0.39789681434631347, "sibling_qid": "KOC-2025-01-1479-Q001", "sibling_text": "turning gear circuit diagram", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw the turning gear circuit diagram and explain the starter.", "cross_family": true } ] }, { "qid": "KOC-2025-11-1076-Q008", "text": "■ME liner removal procedure", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "KOC-2025-11-1076", "tray": "review", "candidates": [ { "answer_id": "CYL-LINER-P03-008", "score": 0.7675527930259705, "sibling_score": 0.7675527930259705, "answer_score": 0.3755235642194748, "sibling_qid": "KOL-2021-02-3382-Q003", "sibling_text": "liner removal of me procedure", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Main-engine cylinder liner removal — full procedure, the lifting tool, and precautions", "cross_family": false }, { "answer_id": "CYL-LINER-P03-003", "score": 0.6856438517570496, "sibling_score": 0.6856438517570496, "answer_score": 0.36897889673709866, "sibling_qid": "KOL-2022-03-3529-Q001", "sibling_text": "me liner removal procedure safety cheks how will you remove if its stuck", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Removing a stuck cylinder liner — how, and where do you jack?", "cross_family": false }, { "answer_id": "CYL-LINER-P02-002", "score": 0.6349166035652161, "sibling_score": 0.6349166035652161, "answer_score": null, "sibling_qid": "MUM-2026-05-3238-Q009", "sibling_text": "liner seized how to remove", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L2 · T044-PART_02-G002High", "cross_family": false } ] }, { "qid": "KOC-2025-11-1607-Q005", "text": "Type of lighting in battery room", "family": "Electrical - Distribution & MSB", "subtopic": "Lighting / Lamps", "tid": "KOC-2025-11-1607", "tray": "review", "candidates": [ { "answer_id": "EXD-EXI-A-002", "score": 0.7329613566398621, "sibling_score": 0.7329613566398621, "answer_score": null, "sibling_qid": "KOC-2022-08-1188-Q009", "sibling_text": "type of light and maintenance routine of it in battery room", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "Ex d (flameproof / explosion-proof) — construction, shipboard applications and maintenance", "cross_family": true }, { "answer_id": "BDC-P06-01", "score": 0.668389081954956, "sibling_score": 0.668389081954956, "answer_score": 0.47971746921539304, "sibling_qid": "MUM-2025-09-1634-Q005", "sibling_text": "battery room safeties how was ventilation there type of light used there all other safeties", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "Battery-room hazards, requirements and entry precautions", "cross_family": true }, { "answer_id": "VOLT-SYS-008", "score": 0.6339261531829834, "sibling_score": 0.6339261531829834, "answer_score": null, "sibling_qid": "CHE-2025-08-0282-Q007", "sibling_text": "lightings supply voltage why not 24v", "sibling_family": "Electrical - Distribution & MSB", "via": "sibling", "answer_title": "Why standard shipboard voltages: 440, 230/220, 110 and 24", "cross_family": false } ] }, { "qid": "KOC-2025-11-1608-Q009", "text": "whats its protection for cold climate", "family": "Refrigeration & AC", "subtopic": "Hot to Cold Climate Transition", "tid": "KOC-2025-11-1608", "tray": "new", "candidates": [ { "answer_id": "RAC-MAT-320-004", "score": 0.5985034108161926, "sibling_score": 0.5985034108161926, "answer_score": null, "sibling_qid": "KOL-2022-01-1657-Q002", "sibling_text": "checks in ahu before entering cold climate", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "4. AHU maintenance, filters and pre-climate-change checks", "cross_family": false }, { "answer_id": "CPFE-583-011", "score": 0.5743340253829956, "sibling_score": 0.5743340253829956, "answer_score": 0.3797543078660965, "sibling_qid": "KOL-2019-03-1445-Q011", "sibling_text": "viscosity maintained in cold climate", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Heating arrangement and hydraulic oil in cold regions", "cross_family": true }, { "answer_id": "CFZ-330-003", "score": 0.570178210735321, "sibling_score": 0.570178210735321, "answer_score": 0.3670460671186447, "sibling_qid": "KOL-2022-01-1914-Q002", "sibling_text": "comfortable zone how air in winter is maintain", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Summer and winter operation — how the comfort zone is held, and how relative humidity is raised", "cross_family": false } ] }, { "qid": "KOC-2025-11-1609-Q008", "text": "How to order a motor", "family": "Electrical - Motors & Starters", "subtopic": "Motor Specification / Ordering", "tid": "KOC-2025-11-1609", "tray": "review", "candidates": [ { "answer_id": "BRG-NOM-001", "score": 0.8153194785118103, "sibling_score": 0.8153194785118103, "answer_score": null, "sibling_qid": "MUM-2026-09-3871-Q005", "sibling_text": "how to order motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Bearing Numbers, Suffixes and What to State When Ordering", "cross_family": false }, { "answer_id": "IP-ENCL-002", "score": 0.667942464351654, "sibling_score": 0.667942464351654, "answer_score": null, "sibling_qid": "KOC-2026-10-2222-Q002", "sibling_text": "how to order sea water motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Suitable IP rating by location — ER, deck, pump, generator", "cross_family": false }, { "answer_id": "SGM-ELEC-002", "score": 0.6394878029823303, "sibling_score": 0.6394878029823303, "answer_score": 0.49502081871032716, "sibling_qid": "MUM-2025-08-1605-Q001", "sibling_text": "steering motor type and difference from other er motors how to order motor over speed test over current test", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What type of motor is the steering gear motor, how does it differ from other engine-room motors, and how do you order one?", "cross_family": false } ] }, { "qid": "KOC-2025-11-1611-Q002", "text": "Draw DC 3pointer starter. Explain", "family": "Electrical - Motors & Starters", "subtopic": "DC Motor Three-Point Starter", "tid": "KOC-2025-11-1611", "tray": "new", "candidates": [ { "answer_id": "STR-DEC-A-001", "score": 0.6459429860115051, "sibling_score": 0.6459429860115051, "answer_score": null, "sibling_qid": "KOC-2026-05-2133-Q010", "sibling_text": "draw and explain 3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "STARTER-DEC-B-003", "score": 0.550700843334198, "sibling_score": 0.550700843334198, "answer_score": null, "sibling_qid": "KOC-2023-04-1255-Q006", "sibling_text": "dol starter 3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "DOL starter — use, current, range and limits", "cross_family": false }, { "answer_id": "SDST-A-001", "score": 0.5488919019699097, "sibling_score": 0.5488919019699097, "answer_score": 0.30694770663976667, "sibling_qid": "KOC-2025-01-1459-Q002", "sibling_text": "start delta starter draw explain", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false } ] }, { "qid": "KOC-2025-11-1612-Q006", "text": "draw star n Delta connection in terminal box", "family": "Electrical - Motors & Starters", "subtopic": "Star-Delta Starter", "tid": "KOC-2025-11-1612", "tray": "review", "candidates": [ { "answer_id": "SDST-A-001", "score": 0.6830466389656067, "sibling_score": 0.6830466389656067, "answer_score": 0.403621232509613, "sibling_qid": "KOC-2024-10-1407-Q001", "sibling_text": "draw star delta starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false }, { "answer_id": "SDC-005", "score": 0.6735805869102478, "sibling_score": 0.6735805869102478, "answer_score": 0.4777285039424896, "sibling_qid": "KOC-2021-09-1148-Q002", "sibling_text": "draw delta connection", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Draw the delta connection", "cross_family": true }, { "answer_id": "SDC-002", "score": 0.39732730090618135, "sibling_score": null, "answer_score": 0.39732730090618135, "sibling_qid": "", "sibling_text": "how do you identify star or delta at the terminal box and why the terminal counts six motor terminals both ends of the three windings u1 u2 v1 v2 w1 w2 star strap the bottom three studs together star point supply on the top three", "sibling_family": "", "via": "answer_title", "answer_title": "How do you identify star or delta at the terminal box, and why the terminal counts?", "cross_family": false } ] }, { "qid": "KOC-2025-11-1614-Q003", "text": "■Static avr and brushless alternator with diagram explanation", "family": "Electrical - Generator & Alternator", "subtopic": "Brushless Alternator", "tid": "KOC-2025-11-1614", "tray": "review", "candidates": [ { "answer_id": "BL-ALT-C-003", "score": 0.6993990540504456, "sibling_score": 0.6993990540504456, "answer_score": null, "sibling_qid": "KOL-2018-06-2202-Q002", "sibling_text": "brushless and static alternator", "sibling_family": "Electrical - 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Motors & Starters", "subtopic": "DC Motor Three-Point Starter", "tid": "KOC-2025-11-1615", "tray": "review", "candidates": [ { "answer_id": "STR-DEC-A-001", "score": 0.7858744859695435, "sibling_score": 0.7858744859695435, "answer_score": null, "sibling_qid": "KOC-2026-02-1712-Q002", "sibling_text": "3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "STARTER-DEC-B-003", "score": 0.7463799118995667, "sibling_score": 0.7463799118995667, "answer_score": null, "sibling_qid": "KOC-2023-04-1255-Q006", "sibling_text": "dol starter 3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "DOL starter — use, current, range and limits", "cross_family": false }, { "answer_id": "SOFT-START-P01-001", "score": 0.6014646291732788, "sibling_score": 0.6014646291732788, "answer_score": null, "sibling_qid": "KOL-2017-07-2140-Q003", "sibling_text": "3 soft starter", "sibling_family": "Electrical - 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Explain it", "family": "Electrical - Motors & Starters", "subtopic": "DC Motor Three-Point Starter", "tid": "KOC-2025-11-1617", "tray": "review", "candidates": [ { "answer_id": "SDST-A-001", "score": 0.6832345724105835, "sibling_score": 0.6832345724105835, "answer_score": 0.42486138343811036, "sibling_qid": "KOC-2026-02-1701-Q005", "sibling_text": "three point starter diagram with explanation", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false }, { "answer_id": "STR-DEC-A-001", "score": 0.6287768483161926, "sibling_score": 0.6287768483161926, "answer_score": null, "sibling_qid": "KOC-2026-05-2133-Q010", "sibling_text": "draw and explain 3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "SDC-005", "score": 0.4350791871547699, "sibling_score": null, "answer_score": 0.4350791871547699, "sibling_qid": "", "sibling_text": "draw the delta connection three windings joined end to start in a closed loop a triangle line leads r y b taken from the three corners junctions", "sibling_family": "", "via": "answer_title", "answer_title": "Draw the delta connection", "cross_family": false } ] }, { "qid": "KOC-2025-11-1618-Q003", "text": "if during parallel operation ONE:ONE generator looses excitation what will happen", "family": "Electrical - Generator & Alternator", "subtopic": "Residual Magnetism / Flashing", "tid": "KOC-2025-11-1618", "tray": "review", "candidates": [ { "answer_id": "AVR-EXC-G-003", "score": 0.7738060355186462, "sibling_score": 0.7738060355186462, "answer_score": 0.5832843571901322, "sibling_qid": "MUM-2023-03-1380-Q003", "sibling_text": "2 generators one loses excitation what happens", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Loss or reduction of excitation: effect and action", "cross_family": false }, { "answer_id": "SYNC-C-001", "score": 0.7124588489532471, "sibling_score": 0.7124588489532471, "answer_score": null, "sibling_qid": "CHE-2026-05-0581-Q005", "sibling_text": "two generator running in parallel if one prime mover stops suddenly and asked what will happen after this", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Paralleling generators — procedure, conditions and practical checks", "cross_family": false }, { "answer_id": "LS-IMB-A-001", "score": 0.7018570303916931, "sibling_score": 0.7018570303916931, "answer_score": null, "sibling_qid": "MUM-2026-07-3748-Q004", "sibling_text": "two generator running parallel sharing equal load one of generator suddenly off load what r the reason", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Two paralleled generators sharing unequal load — cause and correction", "cross_family": false } ] }, { "qid": "KOC-2025-11-1619-Q001", "text": "Frame number", "family": "Electrical - Motors & Starters", "subtopic": "Frame Number", "tid": "KOC-2025-11-1619", "tray": "review", "candidates": [ { "answer_id": "ELECTRICAL-M-A-01", "score": 0.887746274471283, "sibling_score": 0.887746274471283, "answer_score": 0.48504225015640257, "sibling_qid": "MUM-2026-03-1997-Q004", "sibling_text": "frame number", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Motor Frame Number", "cross_family": false }, { "answer_id": "KGF-A-002", "score": 0.8370450735092163, "sibling_score": 0.8370450735092163, "answer_score": 0.5911878317594528, "sibling_qid": "KOC-2026-08-2115-Q010", "sibling_text": "frame number", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Frame numbering, spacing & identification", "cross_family": true }, { "answer_id": "SHELL-PLT-A-001", "score": 0.6661947965621948, "sibling_score": 0.6661947965621948, "answer_score": null, "sibling_qid": "KOC-2024-08-0392-Q013", "sibling_text": "frame numbering shell expansion plan", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "The shell expansion plan, and how you identify a plate", "cross_family": true } ] }, { "qid": "KOC-2025-11-1619-Q002", "text": "Service factor", "family": "Electrical - Motors & Starters", "subtopic": "Motor Specification / Ordering", "tid": "KOC-2025-11-1619", "tray": "new", "candidates": [ { "answer_id": "IMSP-007", "score": 0.5266106128692627, "sibling_score": 0.5266106128692627, "answer_score": null, "sibling_qid": "MUM-2026-03-1997-Q006", "sibling_text": "safety factor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What safeties and protections are provided in an induction motor and its starter — overload, short-circuit, thermal? What about a motor on deck, and large three-phase motors?", "cross_family": false }, { "answer_id": "MSB-ESB-B-001", "score": 0.49385905265808105, "sibling_score": 0.49385905265808105, "answer_score": null, "sibling_qid": "KOC-2023-11-1302-Q003", "sibling_text": "msb service", "sibling_family": "", "via": "sibling", "answer_title": "Routine maintenance & health check of the MSB", "cross_family": false }, { "answer_id": "FLP-142-P02-004", "score": 0.48877063393592834, "sibling_score": 0.48877063393592834, "answer_score": null, "sibling_qid": "KOL-2024-02-0817-Q004", "sibling_text": "factor of subdivision gope", "sibling_family": "", "via": "sibling", "answer_title": "Factor of subdivision — what it is", "cross_family": false } ] }, { "qid": "KOC-2025-11-1620-Q001", "text": "Frame number", "family": "Electrical - Motors & Starters", "subtopic": "Frame Number", "tid": "KOC-2025-11-1620", "tray": "review", "candidates": [ { "answer_id": "ELECTRICAL-M-A-01", "score": 0.887746274471283, "sibling_score": 0.887746274471283, "answer_score": 0.48504225015640257, "sibling_qid": "MUM-2026-03-1997-Q004", "sibling_text": "frame number", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Motor Frame Number", "cross_family": false }, { "answer_id": "KGF-A-002", "score": 0.8370450735092163, "sibling_score": 0.8370450735092163, "answer_score": 0.5911878317594528, "sibling_qid": "KOC-2026-08-2115-Q010", "sibling_text": "frame number", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Frame numbering, spacing & identification", "cross_family": true }, { "answer_id": "SHELL-PLT-A-001", "score": 0.6661947965621948, "sibling_score": 0.6661947965621948, "answer_score": null, "sibling_qid": "KOC-2024-08-0392-Q013", "sibling_text": "frame numbering shell expansion plan", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "The shell expansion plan, and how you identify a plate", "cross_family": true } ] }, { "qid": "KOC-2025-11-1620-Q002", "text": "Service factor", "family": "Electrical - Motors & Starters", "subtopic": "Motor Specification / Ordering", "tid": "KOC-2025-11-1620", "tray": "new", "candidates": [ { "answer_id": "IMSP-007", "score": 0.5266106128692627, "sibling_score": 0.5266106128692627, "answer_score": null, "sibling_qid": "MUM-2026-03-1997-Q006", "sibling_text": "safety factor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What safeties and protections are provided in an induction motor and its starter — overload, short-circuit, thermal? What about a motor on deck, and large three-phase motors?", "cross_family": false }, { "answer_id": "MSB-ESB-B-001", "score": 0.49385905265808105, "sibling_score": 0.49385905265808105, "answer_score": null, "sibling_qid": "KOC-2023-11-1302-Q003", "sibling_text": "msb service", "sibling_family": "", "via": "sibling", "answer_title": "Routine maintenance & health check of the MSB", "cross_family": false }, { "answer_id": "FLP-142-P02-004", "score": 0.48877063393592834, "sibling_score": 0.48877063393592834, "answer_score": null, "sibling_qid": "KOL-2024-02-0817-Q004", "sibling_text": "factor of subdivision gope", "sibling_family": "", "via": "sibling", "answer_title": "Factor of subdivision — what it is", "cross_family": false } ] }, { "qid": "KOC-2025-11-1621-Q006", "text": "Zener barrier", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOC-2025-11-1621", "tray": "review", "candidates": [ { "answer_id": "EPC-P02-03", "score": 0.6892571449279785, "sibling_score": 0.6892571449279785, "answer_score": 0.43752944767475127, "sibling_qid": "CHE-2026-02-0333-Q002", "sibling_text": "zener barrier", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Where is a zener diode used on board and why — voltage regulator, AVR, clipper — and explain one application in detail.", "cross_family": false }, { "answer_id": "EPC-P02-01", "score": 0.6887890696525574, "sibling_score": 0.6887890696525574, "answer_score": 0.47238284945487974, "sibling_qid": "MUM-2026-05-3168-Q001", "sibling_text": "zener barrier", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a zener diode? Draw its symbol, explain its working principle, and draw and explain its characteristic curve including the zener (breakdown) voltage.", "cross_family": false }, { "answer_id": "HAZ-EX-B-001", "score": 0.6214563250541687, "sibling_score": 0.6214563250541687, "answer_score": null, "sibling_qid": "CHE-2026-03-0358-Q005", "sibling_text": "zener barrier working in intrinsically safe", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Intrinsically safe (Ex i) equipment — what it is, how it works, where it is used, how you identify it", "cross_family": false } ] }, { "qid": "KOC-2025-11-1621-Q011", "text": "How much is the Control voltage", "family": "Electrical - Distribution & MSB", "subtopic": "Control Voltage", "tid": "KOC-2025-11-1621", "tray": "new", "candidates": [ { "answer_id": "BDC-P02-04", "score": 0.5946415662765503, "sibling_score": 0.5946415662765503, "answer_score": null, "sibling_qid": "CHE-2026-05-0565-Q015", "sibling_text": "why dc for control voltage", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "The ship's 24 V DC system — how it is produced, why DC, and what it supplies", "cross_family": true }, { "answer_id": "VOLT-SYS-008", "score": 0.5875754952430725, "sibling_score": 0.5875754952430725, "answer_score": null, "sibling_qid": "CHE-2026-02-0339-Q005S2", "sibling_text": "what control circuit voltage in ur ship i said 110vac and 24vdc he expecting 24vdc", "sibling_family": "Electrical - Distribution & MSB", "via": "sibling", "answer_title": "Why standard shipboard voltages: 440, 230/220, 110 and 24", "cross_family": false }, { "answer_id": "EPC-P01-06", "score": 0.5670436024665833, "sibling_score": 0.5670436024665833, "answer_score": null, "sibling_qid": "MUM-2023-12-1419-Q009", "sibling_text": "how rectification of main 440v done to obtain the 24 12 vdc control voltage", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Do we produce DC on board? Sources, the 24/12-volt arrangement, and where DC is used", "cross_family": true } ] }, { "qid": "KOC-2025-11-1622-Q007", "text": "After electric motor overhaul how will you connect the terminals ? Why 6 terminals in a motor ?", "family": "Electrical - Motors & Starters", "subtopic": "Star-Delta Starter", "tid": "KOC-2025-11-1622", "tray": "review", "candidates": [ { "answer_id": "CONT-317-003", "score": 0.7622685432434082, "sibling_score": 0.7622685432434082, "answer_score": 0.5782007366418839, "sibling_qid": "MUM-2026-05-3170-Q005", "sibling_text": "motor came after rewinding no all terminals signs erased how will you connect", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Continuity to confirm terminal identity after overhaul or rewind", "cross_family": false }, { "answer_id": "SDST-A-001", "score": 0.6587893962860107, "sibling_score": 0.6587893962860107, "answer_score": null, "sibling_qid": "KOC-2024-01-1317-Q008", "sibling_text": "draw explain star delta starter why there is 6 cables in the junction box of a motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false }, { "answer_id": "SDC-002", "score": 0.6579464673995972, "sibling_score": 0.6579464673995972, "answer_score": 0.587179958820343, "sibling_qid": "KOC-2024-01-1325-Q006", "sibling_text": "why 6 terminals in motor why 16 18 connections in alternator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "How do you identify star or delta at the terminal box, and why the terminal counts?", "cross_family": true } ] }, { "qid": "KOC-2025-11-1622-Q009", "text": "Main seawater pump motor specification", "family": "Electrical - Motors & Starters", "subtopic": "Motor Specification / Ordering", "tid": "KOC-2025-11-1622", "tray": "review", "candidates": [ { "answer_id": "IP-ENCL-002", "score": 0.790915310382843, "sibling_score": 0.790915310382843, "answer_score": null, "sibling_qid": "KOC-2026-01-1692-Q005", "sibling_text": "how to order main sea water pump motor and ip and class", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Suitable IP rating by location — ER, deck, pump, generator", "cross_family": false }, { "answer_id": "IRT-A-007", "score": 0.7545762658119202, "sibling_score": 0.7545762658119202, "answer_score": null, "sibling_qid": "MUM-2026-02-1920-Q007", "sibling_text": "pump motor is wet with sea water action taken as 2e", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Wet or submerged motor - recovery and drying out", "cross_family": false }, { "answer_id": "IRT-C-012", "score": 0.7246092557907104, "sibling_score": 0.7246092557907104, "answer_score": null, "sibling_qid": "KOL-2019-07-2304-Q004", "sibling_text": "one pump motor immersed in sea water how will you overhaul", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Seawater-soaked / flooded motor — overhaul & restore IR", "cross_family": false } ] }, { "qid": "KOC-2025-11-1623-Q002", "text": "3 point starter", "family": "Electrical - Motors & Starters", "subtopic": "DC Motor Three-Point Starter", "tid": "KOC-2025-11-1623", "tray": "review", "candidates": [ { "answer_id": "STR-DEC-A-001", "score": 0.7858744263648987, "sibling_score": 0.7858744263648987, "answer_score": null, "sibling_qid": "KOC-2026-02-1712-Q002", "sibling_text": "3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "STARTER-DEC-B-003", "score": 0.7463799118995667, "sibling_score": 0.7463799118995667, "answer_score": null, "sibling_qid": "KOC-2023-04-1255-Q006", "sibling_text": "dol starter 3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "DOL starter — use, current, range and limits", "cross_family": false }, { "answer_id": "SOFT-START-P01-001", "score": 0.601464569568634, "sibling_score": 0.601464569568634, "answer_score": null, "sibling_qid": "KOL-2017-07-2140-Q003", "sibling_text": "3 soft starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Soft Starter — Definition, Purpose and Working", "cross_family": false } ] }, { "qid": "KOC-2025-11-1624-Q018", "text": "Dol starter control circuit", "family": "Electrical - Motors & Starters", "subtopic": "Starter Panel / Control Circuit", "tid": "KOC-2025-11-1624", "tray": "review", "candidates": [ { "answer_id": "STR-DEC-A-001", "score": 0.730143129825592, "sibling_score": 0.730143129825592, "answer_score": 0.49608724415302274, "sibling_qid": "KOC-2024-11-1430-Q001", "sibling_text": "dol starter diagram current value", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "STARTER-DEC-B-003", "score": 0.7135217785835266, "sibling_score": 0.7135217785835266, "answer_score": 0.533013916015625, "sibling_qid": "KOC-2026-09-2184-Q010", "sibling_text": "explain dol starter dol starters where used", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "DOL starter — use, current, range and limits", "cross_family": false }, { "answer_id": "IMSP-004", "score": 0.6913617253303528, "sibling_score": 0.6913617253303528, "answer_score": null, "sibling_qid": "MUM-2026-03-1990-Q002", "sibling_text": "star delta starter components wanted to hear control circuit components and maintenance", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Explain the star-delta starter, and what you find inside it when you open it — its components.", "cross_family": false } ] }, { "qid": "KOC-2025-11-1625-Q005", "text": "Exi exe,zener barrier", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOC-2025-11-1625", "tray": "new", "candidates": [ { "answer_id": "EPC-P02-03", "score": 0.5523443222045898, "sibling_score": 0.5523443222045898, "answer_score": 0.36695466935634613, "sibling_qid": "MUM-2026-07-3813-Q002", "sibling_text": "zener barrier full explanation every component", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Where is a zener diode used on board and why — voltage regulator, AVR, clipper — and explain one application in detail.", "cross_family": false }, { "answer_id": "EPC-P02-01", "score": 0.551906943321228, "sibling_score": 0.551906943321228, "answer_score": 0.3998860836029053, "sibling_qid": "MUM-2026-02-1957-Q003", "sibling_text": "zener barrier full explanation every component", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a zener diode? Draw its symbol, explain its working principle, and draw and explain its characteristic curve including the zener (breakdown) voltage.", "cross_family": false }, { "answer_id": "HAZ-EX-B-001", "score": 0.530197024345398, "sibling_score": 0.530197024345398, "answer_score": null, "sibling_qid": "CHE-2026-03-0358-Q005", "sibling_text": "zener barrier working in intrinsically safe", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Intrinsically safe (Ex i) equipment — what it is, how it works, where it is used, how you identify it", "cross_family": false } ] }, { "qid": "KOC-2025-11-1626-Q004", "text": "Main power supply regulation", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator / Generator", "tid": "KOC-2025-11-1626", "tray": "review", "candidates": [ { "answer_id": "EMG-DG-P02-FINAL-2-001", "score": 0.6730719208717346, "sibling_score": 0.6730719208717346, "answer_score": null, "sibling_qid": "KOL-2022-09-2601-Q003", "sibling_text": "regulation for emergency power system", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Emergency generator loads and duration of emergency supply", "cross_family": false }, { "answer_id": "AVR-EXC-H-003", "score": 0.6680880188941956, "sibling_score": 0.6680880188941956, "answer_score": 0.46769942343235016, "sibling_qid": "KOC-2023-07-0203-Q004", "sibling_text": "voltage regulation", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Voltage regulation, dip, droop and transient response", "cross_family": false }, { "answer_id": "VDIP-589-004", "score": 0.6598801016807556, "sibling_score": 0.6598801016807556, "answer_score": null, "sibling_qid": "KOL-2020-03-2380-Q002", "sibling_text": "regulation of generator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "What is voltage regulation of a generator?", "cross_family": false } ] }, { "qid": "KOC-2025-11-1626-Q009", "text": "When you put all generator in manual what happen", "family": "Electrical - Generator & Alternator", "subtopic": "Synchronization", "tid": "KOC-2025-11-1626", "tray": "new", "candidates": [ { "answer_id": "SYNC-C-001", "score": 0.5562567710876465, "sibling_score": 0.5562567710876465, "answer_score": null, "sibling_qid": "KOC-2026-09-2168-Q011", "sibling_text": "generator taking on load in manual", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Paralleling generators — procedure, conditions and practical checks", "cross_family": false }, { "answer_id": "SYNCRO-A-001", "score": 0.4623814821243286, "sibling_score": 0.4623814821243286, "answer_score": null, "sibling_qid": "CHE-2026-03-0359-Q001S6", "sibling_text": "your generators not getting synchronised when you re trying what you will do deciding ques", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Synchroscope — construction, working, purpose & circuit/principle", "cross_family": false }, { "answer_id": "SYNC-D-001", "score": 0.44452840089797974, "sibling_score": 0.44452840089797974, "answer_score": null, "sibling_qid": "KOC-2025-10-1598-Q006", "sibling_text": "generator parelleling in 8o clock position what will happen step by step", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Closing the breaker out of phase — wrong-synchronizing consequences", "cross_family": false } ] }, { "qid": "KOC-2025-11-1627-Q006", "text": "Draw an intrinsically safe circuit", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOC-2025-11-1627", "tray": "new", "candidates": [ { "answer_id": "HAZ-EX-B-001", "score": 0.6314529776573181, "sibling_score": 0.6314529776573181, "answer_score": 0.4191184729337692, "sibling_qid": "KOC-2026-08-2121-Q007", "sibling_text": "intrinsically safe circuit diagram explain", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Intrinsically safe (Ex i) equipment — what it is, how it works, where it is used, how you identify it", "cross_family": false }, { "answer_id": "HYDRO-001", "score": 0.5624500513076782, "sibling_score": 0.5624500513076782, "answer_score": 0.39815241396427153, "sibling_qid": "KOC-2023-08-1274-Q006", "sibling_text": "draw hydrophore power and control circuit safety", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Draw and explain the hydrophore circuit diagram — power and control circuits, starter and safeties (one-motor version)", "cross_family": false }, { "answer_id": "SDST-A-001", "score": 0.5507108569145203, "sibling_score": 0.5507108569145203, "answer_score": null, "sibling_qid": "KOL-2023-04-2646-Q007", "sibling_text": "again showed the same circuit diagram and asked to draw star delta starter was unable to draw properly internal again took safety oral", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false } ] }, { "qid": "KOC-2025-11-1629-Q003", "text": "Draw transfer pump circuit diagram", "family": "Electrical - Motors & Starters", "subtopic": "Starter Panel / Control Circuit", "tid": "KOC-2025-11-1629", "tray": "new", "candidates": [ { "answer_id": "FIRE-P01-01", "score": 0.6497119665145874, "sibling_score": 0.6497119665145874, "answer_score": null, "sibling_qid": "KOC-2021-11-0034-Q005", "sibling_text": "he want drawing with control cabinet ie dotted line represnting start signal of pump emergency source of supply just keep talking abt the sytem", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist / water-mist system — draw and explain the machinery-space arrangement and normal working", "cross_family": true }, { "answer_id": "WIND-CRN-P01-002", "score": 0.6376721262931824, "sibling_score": 0.6376721262931824, "answer_score": 0.4204893380403519, "sibling_qid": "KOC-2024-12-1445-Q004", "sibling_text": "draw crane circuit diagram", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Crane motor power & control circuit (draw and explain)", "cross_family": false }, { "answer_id": "HSAP-583-A-001", "score": 0.6257709264755249, "sibling_score": 0.6257709264755249, "answer_score": null, "sibling_qid": "KOC-2022-02-0956-Q010", "sibling_text": "heleshew pump diagram working", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Hele-Shaw pump: construction and working — draw and explain", "cross_family": true } ] }, { "qid": "KOC-2025-11-1629-Q005", "text": "How to order MSW pump Motor", "family": "Electrical - Motors & Starters", "subtopic": "Motor Specification / Ordering", "tid": "KOC-2025-11-1629", "tray": "review", "candidates": [ { "answer_id": "IP-ENCL-001", "score": 0.7265845537185669, "sibling_score": 0.7265845537185669, "answer_score": null, "sibling_qid": "KOC-2025-02-1497-Q002", "sibling_text": "how to order a s w pump motor asked about ip rating", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "IP rating of motors — what the numbers mean", "cross_family": false }, { "answer_id": "BRG-NOM-001", "score": 0.7151554226875305, "sibling_score": 0.7151554226875305, "answer_score": null, "sibling_qid": "MUM-2026-03-1989-Q002", "sibling_text": "how to order a motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Bearing Numbers, Suffixes and What to State When Ordering", "cross_family": false }, { "answer_id": "IP-ENCL-002", "score": 0.7137229442596436, "sibling_score": 0.7137229442596436, "answer_score": null, "sibling_qid": "KOC-2025-12-1658-Q005", "sibling_text": "how to order main sea water pump motor and ip and class", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Suitable IP rating by location — ER, deck, pump, generator", "cross_family": false } ] }, { "qid": "KOC-2025-11-1630-Q005", "text": "Exi exe,zener barrier", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOC-2025-11-1630", "tray": "new", "candidates": [ { "answer_id": "EPC-P02-03", "score": 0.5523443222045898, "sibling_score": 0.5523443222045898, "answer_score": 0.36695466935634613, "sibling_qid": "MUM-2026-07-3813-Q002", "sibling_text": "zener barrier full explanation every component", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Where is a zener diode used on board and why — voltage regulator, AVR, clipper — and explain one application in detail.", "cross_family": false }, { "answer_id": "EPC-P02-01", "score": 0.551906943321228, "sibling_score": 0.551906943321228, "answer_score": 0.3998860836029053, "sibling_qid": "MUM-2026-02-1957-Q003", "sibling_text": "zener barrier full explanation every component", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a zener diode? Draw its symbol, explain its working principle, and draw and explain its characteristic curve including the zener (breakdown) voltage.", "cross_family": false }, { "answer_id": "HAZ-EX-B-001", "score": 0.530197024345398, "sibling_score": 0.530197024345398, "answer_score": null, "sibling_qid": "CHE-2026-03-0358-Q005", "sibling_text": "zener barrier working in intrinsically safe", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Intrinsically safe (Ex i) equipment — what it is, how it works, where it is used, how you identify it", "cross_family": false } ] }, { "qid": "KOC-2025-11-1632-Q009", "text": "whats its protection for cold climate", "family": "Refrigeration & AC", "subtopic": "Hot to Cold Climate Transition", "tid": "KOC-2025-11-1632", "tray": "new", "candidates": [ { "answer_id": "RAC-MAT-320-004", "score": 0.5985034108161926, "sibling_score": 0.5985034108161926, "answer_score": null, "sibling_qid": "KOL-2022-01-1657-Q002", "sibling_text": "checks in ahu before entering cold climate", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "4. AHU maintenance, filters and pre-climate-change checks", "cross_family": false }, { "answer_id": "CPFE-583-011", "score": 0.5743340253829956, "sibling_score": 0.5743340253829956, "answer_score": 0.3797543078660965, "sibling_qid": "KOL-2019-03-1445-Q011", "sibling_text": "viscosity maintained in cold climate", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Heating arrangement and hydraulic oil in cold regions", "cross_family": true }, { "answer_id": "CFZ-330-003", "score": 0.570178210735321, "sibling_score": 0.570178210735321, "answer_score": 0.3670460671186447, "sibling_qid": "KOL-2022-01-1914-Q002", "sibling_text": "comfortable zone how air in winter is maintain", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Summer and winter operation — how the comfort zone is held, and how relative humidity is raised", "cross_family": false } ] }, { "qid": "KOC-2025-11-1633-Q005", "text": "Type of lighting in battery room", "family": "Electrical - Distribution & MSB", "subtopic": "Lighting / Lamps", "tid": "KOC-2025-11-1633", "tray": "review", "candidates": [ { "answer_id": "EXD-EXI-A-002", "score": 0.7329614162445068, "sibling_score": 0.7329614162445068, "answer_score": null, "sibling_qid": "KOC-2022-08-1188-Q009", "sibling_text": "type of light and maintenance routine of it in battery room", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "Ex d (flameproof / explosion-proof) — construction, shipboard applications and maintenance", "cross_family": true }, { "answer_id": "BDC-P06-01", "score": 0.668389081954956, "sibling_score": 0.668389081954956, "answer_score": 0.47971746921539304, "sibling_qid": "MUM-2025-09-1634-Q005", "sibling_text": "battery room safeties how was ventilation there type of light used there all other safeties", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "Battery-room hazards, requirements and entry precautions", "cross_family": true }, { "answer_id": "VOLT-SYS-008", "score": 0.6339261531829834, "sibling_score": 0.6339261531829834, "answer_score": null, "sibling_qid": "CHE-2025-08-0282-Q007", "sibling_text": "lightings supply voltage why not 24v", "sibling_family": "Electrical - Distribution & MSB", "via": "sibling", "answer_title": "Why standard shipboard voltages: 440, 230/220, 110 and 24", "cross_family": false } ] }, { "qid": "KOC-2025-11-1635-Q002", "text": "What all are the alternator protection devices provided? 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How to troubleshoot it?", "family": "Electrical - Generator & Alternator", "subtopic": "Frequency", "tid": "KOC-2025-11-1635", "tray": "review", "candidates": [ { "answer_id": "ALT-MAINT-C-002", "score": 0.8864293098449707, "sibling_score": 0.8864293098449707, "answer_score": null, "sibling_qid": "KOC-2026-04-1749-Q006", "sibling_text": "at sea one generator is running and suddenly frequency of the generator starts hunting how to troubleshoot it", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "2. How do you check winding insulation, IR, hotspots and winding condition?", "cross_family": false }, { "answer_id": "NO-VOLT-001", "score": 0.6898234486579895, "sibling_score": 0.6898234486579895, "answer_score": null, "sibling_qid": "MUM-2026-06-3528-Q007", "sibling_text": "generator started but frequency not going up reason explain as a 2nd engineer", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "The 3/E reports the generator has started but no voltage is showing — reasons, and your actions as 2/E", "cross_family": false }, { "answer_id": "SYNC-D-002", "score": 0.6634418368339539, "sibling_score": 0.6634418368339539, "answer_score": null, "sibling_qid": "KOC-2025-11-1631-Q005", "sibling_text": "generator governor not responding what to do to take on load", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Governor speed-setting motor not working — taking the set on load in an emergency", "cross_family": false } ] }, { "qid": "KOC-2025-11-1638-Q008", "text": "How to order a motor", "family": "Electrical - Motors & Starters", "subtopic": "Motor Specification / Ordering", "tid": "KOC-2025-11-1638", "tray": "review", "candidates": [ { "answer_id": "BRG-NOM-001", "score": 0.8153194785118103, "sibling_score": 0.8153194785118103, "answer_score": null, "sibling_qid": "MUM-2026-09-3871-Q005", "sibling_text": "how to order motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Bearing Numbers, Suffixes and What to State When Ordering", "cross_family": false }, { "answer_id": "IP-ENCL-002", "score": 0.6679425239562988, "sibling_score": 0.6679425239562988, "answer_score": null, "sibling_qid": "KOC-2026-10-2222-Q002", "sibling_text": "how to order sea water motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Suitable IP rating by location — ER, deck, pump, generator", "cross_family": false }, { "answer_id": "SGM-ELEC-002", "score": 0.6394878029823303, "sibling_score": 0.6394878029823303, "answer_score": 0.49502081871032716, "sibling_qid": "MUM-2025-08-1605-Q001", "sibling_text": "steering motor type and difference from other er motors how to order motor over speed test over current test", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What type of motor is the steering gear motor, how does it differ from other engine-room motors, and how do you order one?", "cross_family": false } ] }, { "qid": "KOC-2025-11-1640-Q003", "text": "■Static avr and brushless alternator with diagram explanation", "family": "Electrical - Generator & Alternator", "subtopic": "Brushless Alternator", "tid": "KOC-2025-11-1640", "tray": "review", "candidates": [ { "answer_id": "BL-ALT-C-003", "score": 0.6993990540504456, "sibling_score": 0.6993990540504456, "answer_score": null, "sibling_qid": "KOL-2018-06-2202-Q002", "sibling_text": "brushless and static alternator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Compare excitation types: brushed / static / brushless", "cross_family": false }, { "answer_id": "BRUSHALT-A-001", "score": 0.6889787316322327, "sibling_score": 0.6889787316322327, "answer_score": null, "sibling_qid": "KOL-2021-10-2502-Q002", "sibling_text": "brushless alternator where rotor exciter fitted how current going exciter to main rotor", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01 · Working principle of the brushless alternator / brushless excitation systemHigh", "cross_family": false }, { "answer_id": "AVR-EXC-G-002", "score": 0.6810209155082703, "sibling_score": 0.6810209155082703, "answer_score": 0.55570467710495, "sibling_qid": "MUM-2025-05-1525-Q001", "sibling_text": "uti tape working and full form brushless alternator component why avr", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Brushless excitation: how DC reaches the rotor", "cross_family": false } ] }, { "qid": "KOC-2025-11-1642-Q002", "text": "Draw DC 3pointer starter. Explain", "family": "Electrical - Motors & Starters", "subtopic": "DC Motor Three-Point Starter", "tid": "KOC-2025-11-1642", "tray": "new", "candidates": [ { "answer_id": "STR-DEC-A-001", "score": 0.6459429860115051, "sibling_score": 0.6459429860115051, "answer_score": null, "sibling_qid": "KOC-2026-05-2133-Q010", "sibling_text": "draw and explain 3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "STARTER-DEC-B-003", "score": 0.550700843334198, "sibling_score": 0.550700843334198, "answer_score": null, "sibling_qid": "KOC-2023-04-1255-Q006", "sibling_text": "dol starter 3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "DOL starter — use, current, range and limits", "cross_family": false }, { "answer_id": "SDST-A-001", "score": 0.5488919019699097, "sibling_score": 0.5488919019699097, "answer_score": 0.30694770663976667, "sibling_qid": "KOC-2025-01-1459-Q002", "sibling_text": "start delta starter draw explain", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false } ] }, { "qid": "KOC-2025-11-1644-Q002", "text": "3 point starter", "family": "Electrical - Motors & Starters", "subtopic": "DC Motor Three-Point Starter", "tid": "KOC-2025-11-1644", "tray": "review", "candidates": [ { "answer_id": "STR-DEC-A-001", "score": 0.7858744859695435, "sibling_score": 0.7858744859695435, "answer_score": null, "sibling_qid": "KOC-2026-02-1709-Q002", "sibling_text": "3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "STARTER-DEC-B-003", "score": 0.7463799715042114, "sibling_score": 0.7463799715042114, "answer_score": null, "sibling_qid": "KOC-2023-04-1255-Q006", "sibling_text": "dol starter 3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "DOL starter — use, current, range and limits", "cross_family": false }, { "answer_id": "SOFT-START-P01-001", "score": 0.6014646887779236, "sibling_score": 0.6014646887779236, "answer_score": null, "sibling_qid": "KOL-2017-07-2140-Q003", "sibling_text": "3 soft starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Soft Starter — Definition, Purpose and Working", "cross_family": false } ] }, { "qid": "KOC-2025-11-1645-Q001", "text": "Frame number", "family": "Electrical - Motors & Starters", "subtopic": "Frame Number", "tid": "KOC-2025-11-1645", "tray": "review", "candidates": [ { "answer_id": "ELECTRICAL-M-A-01", "score": 0.887746274471283, "sibling_score": 0.887746274471283, "answer_score": 0.48504225015640257, "sibling_qid": "MUM-2026-03-1997-Q004", "sibling_text": "frame number", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Motor Frame Number", "cross_family": false }, { "answer_id": "KGF-A-002", "score": 0.8370450735092163, "sibling_score": 0.8370450735092163, "answer_score": 0.5911878317594528, "sibling_qid": "KOC-2026-08-2115-Q010", "sibling_text": "frame number", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Frame numbering, spacing & identification", "cross_family": true }, { "answer_id": "SHELL-PLT-A-001", "score": 0.6661947965621948, "sibling_score": 0.6661947965621948, "answer_score": null, "sibling_qid": "KOC-2024-08-0392-Q013", "sibling_text": "frame numbering shell expansion plan", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "The shell expansion plan, and how you identify a plate", "cross_family": true } ] }, { "qid": "KOC-2025-11-1645-Q002", "text": "Service factor", "family": "Electrical - Motors & Starters", "subtopic": "Motor Specification / Ordering", "tid": "KOC-2025-11-1645", "tray": "new", "candidates": [ { "answer_id": "IMSP-007", "score": 0.5266106724739075, "sibling_score": 0.5266106724739075, "answer_score": null, "sibling_qid": "MUM-2026-03-1997-Q006", "sibling_text": "safety factor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What safeties and protections are provided in an induction motor and its starter — overload, short-circuit, thermal? What about a motor on deck, and large three-phase motors?", "cross_family": false }, { "answer_id": "MSB-ESB-B-001", "score": 0.49385905265808105, "sibling_score": 0.49385905265808105, "answer_score": null, "sibling_qid": "KOC-2023-11-1302-Q003", "sibling_text": "msb service", "sibling_family": "", "via": "sibling", "answer_title": "Routine maintenance & health check of the MSB", "cross_family": false }, { "answer_id": "FLP-142-P02-004", "score": 0.48877063393592834, "sibling_score": 0.48877063393592834, "answer_score": null, "sibling_qid": "KOL-2024-02-0817-Q004", "sibling_text": "factor of subdivision gope", "sibling_family": "", "via": "sibling", "answer_title": "Factor of subdivision — what it is", "cross_family": false } ] }, { "qid": "KOC-2025-11-1646-Q001", "text": "Draw and explain brushless alternator", "family": "Electrical - Generator & Alternator", "subtopic": "Brushless Alternator", "tid": "KOC-2025-11-1646", "tray": "review", "candidates": [ { "answer_id": "BRUSHALT-A-001", "score": 0.7672003507614136, "sibling_score": 0.7672003507614136, "answer_score": 0.566899636387825, "sibling_qid": "MUM-2026-05-3167-Q010", "sibling_text": "brushless alternator explain", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01 · Working principle of the brushless alternator / brushless excitation systemHigh", "cross_family": false }, { "answer_id": "BL-ALT-C-001", "score": 0.7262120842933655, "sibling_score": 0.7262120842933655, "answer_score": null, "sibling_qid": "KOL-2021-03-2432-Q002", "sibling_text": "brushless alternator only tell electrical advantage", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Electrical advantages of brushless excitation over brushed / static", "cross_family": false }, { "answer_id": "BL-ALT-C-002", "score": 0.5593806505203247, "sibling_score": null, "answer_score": 0.5593806505203247, "sibling_qid": "", "sibling_text": "how to identify onboard that an alternator is brushless open the exciter non drive end cover no brushes no brush boxes or springs no slip rings no carbon dust brushless defining proof no slip rings on the main rotor a visible shaft mounted rotating rectifier diode wheel plus surge suppressor", "sibling_family": "", "via": "answer_title", "answer_title": "How to identify onboard that an alternator is brushless", "cross_family": false } ] }, { "qid": "KOC-2025-11-1646-Q004", "text": "How star and delta connected in motor terminal", "family": "Electrical - Motors & Starters", "subtopic": "Star-Delta Starter", "tid": "KOC-2025-11-1646", "tray": "review", "candidates": [ { "answer_id": "SDST-A-001", "score": 0.7613032460212708, "sibling_score": 0.7613032460212708, "answer_score": null, "sibling_qid": "KOC-2023-01-0127-Q016", "sibling_text": "star delta in motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false }, { "answer_id": "CONT-317-003", "score": 0.7559652328491211, "sibling_score": 0.7559652328491211, "answer_score": null, "sibling_qid": "MUM-2026-01-1899-Q004", "sibling_text": "how many terminals are there in a motor how to connect them in start and delta", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Continuity to confirm terminal identity after overhaul or rewind", "cross_family": false }, { "answer_id": "SDST-C-001", "score": 0.7532506585121155, "sibling_score": 0.7532506585121155, "answer_score": null, "sibling_qid": "KOC-2025-11-1626-Q010", "sibling_text": "what happen in star delta if motor runs in star and if both contacts make that means in star and delta", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Star-delta faults - stuck in star, both contactors in, dead after changeover, symptoms and safe action.", "cross_family": false } ] }, { "qid": "KOC-2025-11-1647-Q007", "text": "After electric motor overhaul how will you connect the terminals ? Why 6 terminals in a motor ?", "family": "Electrical - Motors & Starters", "subtopic": "Star-Delta Starter", "tid": "KOC-2025-11-1647", "tray": "review", "candidates": [ { "answer_id": "CONT-317-003", "score": 0.7622685432434082, "sibling_score": 0.7622685432434082, "answer_score": 0.5782006859779357, "sibling_qid": "MUM-2026-05-3170-Q005", "sibling_text": "motor came after rewinding no all terminals signs erased how will you connect", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Continuity to confirm terminal identity after overhaul or rewind", "cross_family": false }, { "answer_id": "SDST-A-001", "score": 0.6587893962860107, "sibling_score": 0.6587893962860107, "answer_score": null, "sibling_qid": "KOC-2024-01-1317-Q008", "sibling_text": "draw explain star delta starter why there is 6 cables in the junction box of a motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false }, { "answer_id": "SDC-002", "score": 0.6579463481903076, "sibling_score": 0.6579463481903076, "answer_score": 0.587179958820343, "sibling_qid": "KOC-2024-01-1325-Q006", "sibling_text": "why 6 terminals in motor why 16 18 connections in alternator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "How do you identify star or delta at the terminal box, and why the terminal counts?", "cross_family": true } ] }, { "qid": "KOC-2025-11-1647-Q009", "text": "Main seawater pump motor specification", "family": "Electrical - Motors & Starters", "subtopic": "Motor Specification / Ordering", "tid": "KOC-2025-11-1647", "tray": "review", "candidates": [ { "answer_id": "IP-ENCL-002", "score": 0.790915310382843, "sibling_score": 0.790915310382843, "answer_score": null, "sibling_qid": "KOC-2026-01-1692-Q005", "sibling_text": "how to order main sea water pump motor and ip and class", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Suitable IP rating by location — ER, deck, pump, generator", "cross_family": false }, { "answer_id": "IRT-A-007", "score": 0.7545762658119202, "sibling_score": 0.7545762658119202, "answer_score": null, "sibling_qid": "MUM-2026-02-1920-Q007", "sibling_text": "pump motor is wet with sea water action taken as 2e", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Wet or submerged motor - recovery and drying out", "cross_family": false }, { "answer_id": "IRT-C-012", "score": 0.7246092557907104, "sibling_score": 0.7246092557907104, "answer_score": null, "sibling_qid": "KOL-2019-07-2304-Q004", "sibling_text": "one pump motor immersed in sea water how will you overhaul", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Seawater-soaked / flooded motor — overhaul & restore IR", "cross_family": false } ] }, { "qid": "KOC-2025-11-1648-Q006", "text": "Zener barrier", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOC-2025-11-1648", "tray": "review", "candidates": [ { "answer_id": "EPC-P02-03", "score": 0.6892571449279785, "sibling_score": 0.6892571449279785, "answer_score": 0.43752944767475127, "sibling_qid": "CHE-2026-02-0333-Q002", "sibling_text": "zener barrier", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Where is a zener diode used on board and why — voltage regulator, AVR, clipper — and explain one application in detail.", "cross_family": false }, { "answer_id": "EPC-P02-01", "score": 0.6887890696525574, "sibling_score": 0.6887890696525574, "answer_score": 0.47238284945487974, "sibling_qid": "MUM-2026-05-3168-Q001", "sibling_text": "zener barrier", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a zener diode? Draw its symbol, explain its working principle, and draw and explain its characteristic curve including the zener (breakdown) voltage.", "cross_family": false }, { "answer_id": "HAZ-EX-B-001", "score": 0.6214563250541687, "sibling_score": 0.6214563250541687, "answer_score": null, "sibling_qid": "CHE-2026-03-0358-Q005", "sibling_text": "zener barrier working in intrinsically safe", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Intrinsically safe (Ex i) equipment — what it is, how it works, where it is used, how you identify it", "cross_family": false } ] }, { "qid": "KOC-2025-11-1648-Q011", "text": "How much is the Control voltage", "family": "Electrical - Distribution & MSB", "subtopic": "Control Voltage", "tid": "KOC-2025-11-1648", "tray": "new", "candidates": [ { "answer_id": "BDC-P02-04", "score": 0.5946415662765503, "sibling_score": 0.5946415662765503, "answer_score": null, "sibling_qid": "CHE-2026-05-0565-Q015", "sibling_text": "why dc for control voltage", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "The ship's 24 V DC system — how it is produced, why DC, and what it supplies", "cross_family": true }, { "answer_id": "VOLT-SYS-008", "score": 0.5875754952430725, "sibling_score": 0.5875754952430725, "answer_score": null, "sibling_qid": "CHE-2026-02-0339-Q005S2", "sibling_text": "what control circuit voltage in ur ship i said 110vac and 24vdc he expecting 24vdc", "sibling_family": "Electrical - Distribution & MSB", "via": "sibling", "answer_title": "Why standard shipboard voltages: 440, 230/220, 110 and 24", "cross_family": false }, { "answer_id": "EPC-P01-06", "score": 0.5670436024665833, "sibling_score": 0.5670436024665833, "answer_score": null, "sibling_qid": "MUM-2023-12-1419-Q009", "sibling_text": "how rectification of main 440v done to obtain the 24 12 vdc control voltage", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Do we produce DC on board? Sources, the 24/12-volt arrangement, and where DC is used", "cross_family": true } ] }, { "qid": "KOC-2025-11-1649-Q001", "text": "Frame number", "family": "Electrical - Motors & Starters", "subtopic": "Frame Number", "tid": "KOC-2025-11-1649", "tray": "review", "candidates": [ { "answer_id": "ELECTRICAL-M-A-01", "score": 0.887746274471283, "sibling_score": 0.887746274471283, "answer_score": 0.48504225015640257, "sibling_qid": "MUM-2026-03-1997-Q004", "sibling_text": "frame number", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Motor Frame Number", "cross_family": false }, { "answer_id": "KGF-A-002", "score": 0.8370450735092163, "sibling_score": 0.8370450735092163, "answer_score": 0.5911878317594528, "sibling_qid": "KOC-2026-08-2115-Q010", "sibling_text": "frame number", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Frame numbering, spacing & identification", "cross_family": true }, { "answer_id": "SHELL-PLT-A-001", "score": 0.6661947965621948, "sibling_score": 0.6661947965621948, "answer_score": null, "sibling_qid": "KOC-2024-08-0392-Q013", "sibling_text": "frame numbering shell expansion plan", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "The shell expansion plan, and how you identify a plate", "cross_family": true } ] }, { "qid": "KOC-2025-11-1649-Q002", "text": "Service factor", "family": "Electrical - Motors & Starters", "subtopic": "Motor Specification / Ordering", "tid": "KOC-2025-11-1649", "tray": "new", "candidates": [ { "answer_id": "IMSP-007", "score": 0.5266106128692627, "sibling_score": 0.5266106128692627, "answer_score": null, "sibling_qid": "MUM-2026-03-1997-Q006", "sibling_text": "safety factor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What safeties and protections are provided in an induction motor and its starter — overload, short-circuit, thermal? 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Present the crosshead bottom shell for survey, piston in place", "cross_family": false }, { "answer_id": "XHD-BRG-C-002", "score": 0.8063039779663086, "sibling_score": 0.8063039779663086, "answer_score": null, "sibling_qid": "KOC-2023-12-1822-Q004", "sibling_text": "crosshead overhaul piston mounted", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "B. 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Maintenance interval", "family": "Air Compressor", "subtopic": "MAC / Air Compressor", "tid": "KOC-2025-11-1968", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-004", "score": 0.660548746585846, "sibling_score": 0.660548746585846, "answer_score": null, "sibling_qid": "MUM-2025-06-0972-Q005", "sibling_text": "main air compressor 500 hrs routine maintenance", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "AE connecting-rod inspection — ovality, trueness, serrations, action if out of limit", "cross_family": false }, { "answer_id": "FSH-DET-005", "score": 0.6011147499084473, "sibling_score": 0.6011147499084473, "answer_score": null, "sibling_qid": "KOC-2025-08-1568-Q011", "sibling_text": "maintenance for that frequency of interval", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Testing, planned maintenance, fault identification, isolation and circuit protection", "cross_family": true }, { "answer_id": "UNL-330-003", "score": 0.5938618779182434, "sibling_score": 0.5938618779182434, "answer_score": null, "sibling_qid": "KOC-2023-10-0984-Q005", "sibling_text": "checks on compressor unloader during overhaul", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "What checks are carried out on the compressor unloader during overhaul?", "cross_family": false } ] }, { "qid": "KOC-2025-11-1969-Q001", "text": "How spindle & lid is connected in globe valve?", "family": "General Marine Engineering", "subtopic": "Gate Valve", "tid": "KOC-2025-11-1969", "tray": "new", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.5428142547607422, "sibling_score": 0.5428142547607422, "answer_score": null, "sibling_qid": "KOL-2025-07-1814-Q004", "sibling_text": "how spindle is fitted in exhaust valve", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": true }, { "answer_id": "GV-330-001", "score": 0.5297958254814148, "sibling_score": 0.5297958254814148, "answer_score": null, "sibling_qid": "KOC-2026-08-2117-Q004", "sibling_text": "globe valve or gate valve draw anyone", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Draw and explain the gate valve — construction, main parts, operation & onboard use", "cross_family": false }, { "answer_id": "GV-330-002", "score": 0.5256751179695129, "sibling_score": 0.5256751179695129, "answer_score": null, "sibling_qid": "KOL-2026-03-3935-Q002", "sibling_text": "overhauling of globe valve", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Gate valve overhaul, checks & the stuck / not-operating valve", "cross_family": false } ] }, { "qid": "KOC-2025-11-1969-Q003", "text": "Period of boiler survey?", "family": "Surveys - Statutory", "subtopic": "HSSC", "tid": "KOC-2025-11-1969", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.8063827157020569, "sibling_score": 0.8063827157020569, "answer_score": null, "sibling_qid": "KOL-2025-11-3889-Q003", "sibling_text": "period of boiler survey", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": true }, { "answer_id": "BLR-SURV-P01-001", "score": 0.7035976052284241, "sibling_score": 0.7035976052284241, "answer_score": 0.5303173273801803, "sibling_qid": "MUM-2026-09-3891-Q011", "sibling_text": "boiler survey routine", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": true }, { "answer_id": "BLR-SURV-P02-008", "score": 0.678909420967102, "sibling_score": 0.678909420967102, "answer_score": null, "sibling_qid": "KOL-2017-01-1841-Q004", "sibling_text": "boiler preparation for survey", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": true } ] }, { "qid": "KOC-2025-11-1970-Q009", "text": "What is DN,what is schedule", "family": "Workshop & Welding", "subtopic": "Pipe Pressure Test", "tid": "KOC-2025-11-1970", "tray": "new", "candidates": [ { "answer_id": "PIPE-MAT-004", "score": 0.49057936668395996, "sibling_score": 0.49057936668395996, "answer_score": 0.24723226428031922, "sibling_qid": "MUM-2026-06-3389-Q002", "sibling_text": "what is schedule in pipe", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Pipe schedule and its relation to thickness, ID, OD", "cross_family": false }, { "answer_id": "PIPE-MAT-003", "score": 0.4661988615989685, "sibling_score": 0.4661988615989685, "answer_score": 0.27032965421676636, "sibling_qid": "KOL-2020-02-1520-Q007", "sibling_text": "pipe specification and ordering what is nd and schedule", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Nominal diameter / bore, ND, NPS — and 100A, 250A", "cross_family": false }, { "answer_id": "ISM-AUD-P02-004", "score": 0.3871588706970215, "sibling_score": 0.3871588706970215, "answer_score": null, "sibling_qid": "KOC-2025-12-0773-Q009", "sibling_text": "drill schedules", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "SMS contents, manuals, documents and drill records onboard", "cross_family": true } ] }, { "qid": "KOC-2025-11-1971-Q005", "text": "What is maximum grade of fuel can be used as per ISO 8217:2017(I said RMG380)", "family": "2-Stroke - 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Operations & Casualty", "via": "sibling", "answer_title": "Hydraulic jack leaks, seizes, will not reach pressure, or nut will not loosen", "cross_family": true } ] }, { "qid": "KOC-2025-11-1971-Q015", "text": "Is crankcase enclosed space, if no why?", "family": "Risk & Safety Management", "subtopic": "Enclosed Space Entry", "tid": "KOC-2025-11-1971", "tray": "review", "candidates": [ { "answer_id": "CC-RELIEF-312-006", "score": 0.6858295202255249, "sibling_score": 0.6858295202255249, "answer_score": 0.5723431229591369, "sibling_qid": "KOC-2022-07-0968-Q004", "sibling_text": "is main engine crankcase a enclosed space no since it has a breather pipe but we follow checklist for safety", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Is the crankcase an enclosed space? — and the breather pipe", "cross_family": true }, { "answer_id": "ESE-P01-003", "score": 0.5801524519920349, "sibling_score": 0.5801524519920349, "answer_score": null, "sibling_qid": "KOC-2026-08-2143-Q005", "sibling_text": "enclosed space", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "General enclosed-space entry procedure as second engineer", "cross_family": false }, { "answer_id": "ESE-P02-008", "score": 0.5798045992851257, "sibling_score": 0.5798045992851257, "answer_score": null, "sibling_qid": "KOL-2018-08-0211-Q011", "sibling_text": "enclosed space", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "ESE-P02-08. Before, during and after: confirming a space is safe to enter", "cross_family": false } ] }, { "qid": "KOC-2025-11-1971-Q021", "text": "Internal- Boiler Safety valve survey what are the things to show to surveyor", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2025-11-1971", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P01-001", "score": 0.8166552782058716, "sibling_score": 0.8166552782058716, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q011", "sibling_text": "boiler safety valve setting in front of surveyor", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-002", "score": 0.7487520575523376, "sibling_score": 0.7487520575523376, "answer_score": null, "sibling_qid": "KOL-2021-11-3485-Q003", "sibling_text": "boiler internal survey when and how and wht parts u will check", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.7381832599639893, "sibling_score": 0.7381832599639893, "answer_score": null, "sibling_qid": "KOL-2022-05-1677-Q004", "sibling_text": "boiler survey when carried out", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOC-2025-11-1971-Q023", "text": "Feathering of safety valve", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2025-11-1971", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-001", "score": 0.6570820212364197, "sibling_score": 0.6570820212364197, "answer_score": null, "sibling_qid": "MUM-2026-02-1255-Q006", "sibling_text": "setting of safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "ECON-EGB-004", "score": 0.6499536037445068, "sibling_score": 0.6499536037445068, "answer_score": 0.4449145793914795, "sibling_qid": "KOL-2026-09-4304-Q003", "sibling_text": "safety valve setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Safety-valve setting after overhaul & why set higher than the boiler", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.6324091553688049, "sibling_score": 0.6324091553688049, "answer_score": null, "sibling_qid": "MUM-2026-03-2589-Q003", "sibling_text": "checks on safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false } ] }, { "qid": "KOC-2025-11-1971-Q024", "text": "Fusible plug location, material,melting point temp", "family": "Boilers - Mountings & Safety", "subtopic": "Fusible Plug", "tid": "KOC-2025-11-1971", "tray": "review", "candidates": [ { "answer_id": "FUSE-HRC-006", "score": 0.6672366261482239, "sibling_score": 0.6672366261482239, "answer_score": null, "sibling_qid": "KOL-2016-08-2064-Q002", "sibling_text": "type of fuse melting temp", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Selecting and interpreting fuse rating – current, voltage, and the motor trap", "cross_family": true }, { "answer_id": "FUSE-HRC-003", "score": 0.5942431688308716, "sibling_score": 0.5942431688308716, "answer_score": 0.4980651646852493, "sibling_qid": "KOC-2025-09-1576-Q008", "sibling_text": "thermall fuse", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Specific fuse types: cartridge, rewireable, thermal, low-current", "cross_family": true }, { "answer_id": "FUSE-HRC-004", "score": 0.5646935105323792, "sibling_score": 0.5646935105323792, "answer_score": 0.4748186707496643, "sibling_qid": "KOC-2026-05-2134-Q010", "sibling_text": "hrc fuses", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "HRC fuse – construction, operation, materials, identification", "cross_family": true } ] }, { "qid": "KOC-2025-11-1974-Q004", "text": "limitations in cast iron welding, electrode name and welding procedure", "family": "Workshop & Welding", "subtopic": "Cast Iron Welding", "tid": "KOC-2025-11-1974", "tray": "review", "candidates": [ { "answer_id": "WELD-B-001", "score": 0.7422187924385071, "sibling_score": 0.7422187924385071, "answer_score": 0.46204780936241147, "sibling_qid": "MUM-2026-06-3641-Q001", "sibling_text": "cast iron welding which electrode", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding & crack-repair of aluminium and cast iron, including metal stitching", "cross_family": false }, { "answer_id": "LH-ELEC-003", "score": 0.4923268139362335, "sibling_score": null, "answer_score": 0.4923268139362335, "sibling_qid": "", "sibling_text": "3 how do you select or order the correct welding electrode or rod match to base material and strength first mild steel high tensile stainless cast iron this fixes the electrode family then coating type for the duty rutile e g e6013 general basic low hydrogen e7018 crack sensitive or high tensile", "sibling_family": "", "via": "answer_title", "answer_title": "3. How do you select or order the correct welding electrode or rod?", "cross_family": false }, { "answer_id": "WELD-B-006", "score": 0.4755252808332443, "sibling_score": null, "answer_score": 0.4755252808332443, "sibling_qid": "", "sibling_text": "welding electrodes selection storage and handling selection match electrode to parent metal to welding position to available current type ac dc and size to plate thickness low hydrogen basic coated electrodes are moisture sensitive absorbed moisture becomes hydrogen in the arc causes porosity and hydrogen cold cracking", "sibling_family": "", "via": "answer_title", "answer_title": "Welding electrodes — selection, storage and handling", "cross_family": false } ] }, { "qid": "KOC-2025-11-1975-Q002", "text": "Main engine crosshead overhaul with piston inplace", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Crosshead Bearing", "tid": "KOC-2025-11-1975", "tray": "review", "candidates": [ { "answer_id": "XHD-BRG-C-001", "score": 0.8127270340919495, "sibling_score": 0.8127270340919495, "answer_score": null, "sibling_qid": "KOC-2026-08-2122-Q001", "sibling_text": "crosshead bearing overhaul piston in place", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "A. Present the crosshead bottom shell for survey, piston in place", "cross_family": false }, { "answer_id": "XHD-BRG-C-002", "score": 0.8063039779663086, "sibling_score": 0.8063039779663086, "answer_score": null, "sibling_qid": "KOC-2023-12-1822-Q004", "sibling_text": "crosshead overhaul piston mounted", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "B. Crosshead bearing overhaul and removal: exact steps, tackle, withdrawing the pin", "cross_family": false }, { "answer_id": "XHEAD-303-007", "score": 0.8010744452476501, "sibling_score": 0.8010744452476501, "answer_score": null, "sibling_qid": "KOC-2025-01-1026-Q008", "sibling_text": "x head overhaul with piston in place", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead inspection, survey and overhaul, including in-place overhaul", "cross_family": false } ] }, { "qid": "KOC-2025-11-1975-Q003", "text": "Safety valve settings infront of surveyor", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2025-11-1975", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P01-001", "score": 0.8360786437988281, "sibling_score": 0.8360786437988281, "answer_score": null, "sibling_qid": "KOC-2026-05-2142-Q008", "sibling_text": "safety valve setting in front of surveyor", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "ECON-EGB-004", "score": 0.6900302171707153, "sibling_score": 0.6900302171707153, "answer_score": 0.5373893558979034, "sibling_qid": "KOL-2026-09-4304-Q003", "sibling_text": "safety valve setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Safety-valve setting after overhaul & why set higher than the boiler", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.6704263687133789, "sibling_score": 0.6704263687133789, "answer_score": null, "sibling_qid": "MUM-2026-02-1255-Q006", "sibling_text": "setting of safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false } ] }, { "qid": "KOC-2025-11-1975-Q004", "text": "Improved High lift safety valve top part draw and explain", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2025-11-1975", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.8121122717857361, "sibling_score": 0.8121122717857361, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q012", "sibling_text": "draw top part of improved high lift safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-003", "score": 0.41321832686662674, "sibling_score": null, "answer_score": 0.41321832686662674, "sibling_qid": "", "sibling_text": "the accumulation test and the safety valve required lift how lift and capacity are verified and why accumulation must stay inside the limit popping test proves setting accumulation test proves installed relieving capacity not two versions of one test sizing the class discharge formula sizes the aggregate valve area from the maker s specified peak evaporation using a constant for the valve type", "sibling_family": "", "via": "answer_title", "answer_title": "The accumulation test and the safety valve — required lift, how lift and capacity are verified, and why accumulation must stay inside the limit", "cross_family": false }, { "answer_id": "ACSS-002", "score": 0.4076593518257141, "sibling_score": null, "answer_score": 0.4076593518257141, "sibling_qid": "", "sibling_text": "relief safety valves settings testing lifting reasons bursting disc set just above stage working pressure the class standard accumulation limit is about 10 though the exact set point is a maker sms value non isolable from its stage test to the maker s method easing gear or test rig for lifting pressure log and reset", "sibling_family": "", "via": "answer_title", "answer_title": "Relief / safety valves: settings, testing, lifting reasons; bursting disc", "cross_family": false } ] }, { "qid": "KOC-2025-11-1976-Q007", "text": "Overboard valves made up of.why nt cast/iron", "family": "Auxiliary Equipment", "subtopic": "VALVES", "tid": "KOC-2025-11-1976", "tray": "new", "candidates": [ { "answer_id": "SGB-212-011", "score": 0.554332971572876, "sibling_score": 0.554332971572876, "answer_score": 0.4219745770096779, "sibling_qid": "KOL-2021-10-1630-Q004", "sibling_text": "brass where used on ship cast steel bronze or brass which you will use for main steam stop valve", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Material for a boiler / main steam stop valve", "cross_family": true }, { "answer_id": "SGB-212-013", "score": 0.5137919783592224, "sibling_score": 0.5137919783592224, "answer_score": null, "sibling_qid": "KOC-2024-12-1881-Q003", "sibling_text": "process diff draw steam stop valve steering gear pump seal leaky renewal procedure ship side valve material composition of monel metal difference between bronze and brass composition internal no question cleared coc thanx all for the support", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Monel metal and Muntz metal", "cross_family": true }, { "answer_id": "STEEL-GR-002", "score": 0.48038411140441895, "sibling_score": 0.48038411140441895, "answer_score": null, "sibling_qid": "KOC-2026-09-2210-Q007", "sibling_text": "difference between cast iron and mild steel and where all this material is used onboard", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Mild steel — composition, use, and how it differs from cast iron", "cross_family": true } ] }, { "qid": "KOC-2025-11-1976-Q008", "text": "Diagram of auto drain valve in air compressor", "family": "Air Compressor", "subtopic": "Compressor Relief Valve", "tid": "KOC-2025-11-1976", "tray": "review", "candidates": [ { "answer_id": "MAC-353-009", "score": 0.7858991026878357, "sibling_score": 0.7858991026878357, "answer_score": 0.5945656478404998, "sibling_qid": "KOL-2019-11-3292-Q003", "sibling_text": "draw the automatic drain arrangement in air compressor and explain", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Automatic drain / moisture-drainage arrangement for the air compressor", "cross_family": false }, { "answer_id": "MAC-598-002", "score": 0.6934890747070312, "sibling_score": 0.6934890747070312, "answer_score": null, "sibling_qid": "MUM-2026-06-3614-Q003", "sibling_text": "compressor circuit diagram", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "The main air compressor circuit — power and control circuits, starting, and electrical safeties in the compressor room", "cross_family": false }, { "answer_id": "SAV-001", "score": 0.6926194429397583, "sibling_score": 0.6926194429397583, "answer_score": null, "sibling_qid": "KOC-2024-01-1827-Q007", "sibling_text": "draw gate valve internal draw air starting valve needs a proper diagram won t accept a rough diagram", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Construction and working of the main automatic starting air valve", "cross_family": true } ] }, { "qid": "KOC-2025-11-1977-Q009", "text": "What is DN,what is schedule", "family": "Workshop & Welding", "subtopic": "Pipe Pressure Test", "tid": "KOC-2025-11-1977", "tray": "new", "candidates": [ { "answer_id": "PIPE-MAT-004", "score": 0.49057936668395996, "sibling_score": 0.49057936668395996, "answer_score": 0.24723226428031922, "sibling_qid": "MUM-2026-06-3389-Q002", "sibling_text": "what is schedule in pipe", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Pipe schedule and its relation to thickness, ID, OD", "cross_family": false }, { "answer_id": "PIPE-MAT-003", "score": 0.4661988615989685, "sibling_score": 0.4661988615989685, "answer_score": 0.27032965421676636, "sibling_qid": "KOL-2020-02-1520-Q007", "sibling_text": "pipe specification and ordering what is nd and schedule", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Nominal diameter / bore, ND, NPS — and 100A, 250A", "cross_family": false }, { "answer_id": "ISM-AUD-P02-004", "score": 0.3871588706970215, "sibling_score": 0.3871588706970215, "answer_score": null, "sibling_qid": "KOC-2025-12-0773-Q009", "sibling_text": "drill schedules", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "SMS contents, manuals, documents and drill records onboard", "cross_family": true } ] }, { "qid": "KOC-2025-11-1978-Q002", "text": "Crosshead bearing survey", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Crosshead Bearing", "tid": "KOC-2025-11-1978", "tray": "review", "candidates": [ { "answer_id": "XHD-BRG-C-001", "score": 0.8220158219337463, "sibling_score": 0.8220158219337463, "answer_score": null, "sibling_qid": "KOC-2021-11-1768-Q006", "sibling_text": "cross head bearing survey", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "A. Present the crosshead bottom shell for survey, piston in place", "cross_family": false }, { "answer_id": "CXH-BRG-FINAL-1-001", "score": 0.8202049136161804, "sibling_score": 0.8202049136161804, "answer_score": null, "sibling_qid": "KOL-2016-11-1838-Q004", "sibling_text": "cross head bearing survey", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead bearing survey: open-up, removal & inspection", "cross_family": false }, { "answer_id": "XHD-BRG-B-001", "score": 0.8156875967979431, "sibling_score": 0.8156875967979431, "answer_score": 0.4886975526809692, "sibling_qid": "KOL-2019-07-3259-Q003", "sibling_text": "crosshead bearing survey", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Preparing the crosshead bottom-end bearing and presenting it to the surveyor", "cross_family": false } ] }, { "qid": "KOC-2025-11-2081-Q004", "text": "High lift safety valve", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2025-11-2081", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.7766745686531067, "sibling_score": 0.7766745686531067, "answer_score": null, "sibling_qid": "MUM-2026-06-3523-Q005", "sibling_text": "high lift safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACSS-002", "score": 0.5250138759613037, "sibling_score": null, "answer_score": 0.5250138759613037, "sibling_qid": "", "sibling_text": "relief safety valves settings testing lifting reasons bursting disc set just above stage working pressure the class standard accumulation limit is about 10 though the exact set point is a maker sms value non isolable from its stage test to the maker s method easing gear or test rig for lifting pressure log and reset", "sibling_family": "", "via": "answer_title", "answer_title": "Relief / safety valves: settings, testing, lifting reasons; bursting disc", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-003", "score": 0.5003274619579315, "sibling_score": null, "answer_score": 0.5003274619579315, "sibling_qid": "", "sibling_text": "the accumulation test and the safety valve required lift how lift and capacity are verified and why accumulation must stay inside the limit popping test proves setting accumulation test proves installed relieving capacity not two versions of one test sizing the class discharge formula sizes the aggregate valve area from the maker s specified peak evaporation using a constant for the valve type", "sibling_family": "", "via": "answer_title", "answer_title": "The accumulation test and the safety valve — required lift, how lift and capacity are verified, and why accumulation must stay inside the limit", "cross_family": false } ] }, { "qid": "KOC-2025-11-2081-Q007", "text": "How will you explain manual desludge to a 4E?", "family": "Purifier & Centrifuges", "subtopic": "Desludging", "tid": "KOC-2025-11-2081", "tray": "review", "candidates": [ { "answer_id": "PUR-DSL-001", "score": 0.6909847259521484, "sibling_score": 0.6909847259521484, "answer_score": 0.48783636689186094, "sibling_qid": "MUM-2026-06-3392-Q006", "sibling_text": "how will you explain manual desludge to a 4e", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Manual desludging of a purifier — the step-by-step procedure", "cross_family": false }, { "answer_id": "PURIF-BOWL-P02-001", "score": 0.583500325679779, "sibling_score": 0.583500325679779, "answer_score": 0.4599496126174927, "sibling_qid": "KOL-2023-07-3628-Q004", "sibling_text": "purifier manual desludging", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Bowl opening, closing & manual desludging — mechanism, manual operation, failure causes", "cross_family": false }, { "answer_id": "PUR-DSL-004", "score": 0.4027967020869255, "sibling_score": null, "answer_score": 0.4027967020869255, "sibling_qid": "", "sibling_text": "periodic desludging in rough weather precautions desludge more often rolling stirs tank sediment and free water into the feed drain settling and service tanks each watch per sms standing orders", "sibling_family": "", "via": "answer_title", "answer_title": "Periodic desludging in rough weather — precautions", "cross_family": false } ] }, { "qid": "KOC-2025-11-2082-Q003", "text": "explain the complete procedure of manual desludging for a purifier to a 4E", "family": "Purifier & Centrifuges", "subtopic": "Desludging", "tid": "KOC-2025-11-2082", "tray": "review", "candidates": [ { "answer_id": "PUR-DSL-001", "score": 0.7710059285163879, "sibling_score": 0.7710059285163879, "answer_score": 0.6126562237739562, "sibling_qid": "MUM-2026-06-3391-Q002", "sibling_text": "explain the complete procedure of manual desludging for a purifier to a 4e", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Manual desludging of a purifier — the step-by-step procedure", "cross_family": false }, { "answer_id": "PURIF-BOWL-P02-001", "score": 0.7044268250465393, "sibling_score": 0.7044268250465393, "answer_score": 0.4571470350027084, "sibling_qid": "KOL-2023-07-3628-Q004", "sibling_text": "purifier manual desludging", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Bowl opening, closing & manual desludging — mechanism, manual operation, failure causes", "cross_family": false }, { "answer_id": "PUR-DSL-004", "score": 0.4512137293815613, "sibling_score": null, "answer_score": 0.4512137293815613, "sibling_qid": "", "sibling_text": "periodic desludging in rough weather precautions desludge more often rolling stirs tank sediment and free water into the feed drain settling and service tanks each watch per sms standing orders", "sibling_family": "", "via": "answer_title", "answer_title": "Periodic desludging in rough weather — precautions", "cross_family": false } ] }, { "qid": "KOC-2025-11-2083-Q009", "text": "Governor speed knob of COPT..( i explained for ae)", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE Governor", "tid": "KOC-2025-11-2083", "tray": "review", "candidates": [ { "answer_id": "GOV-P03-002", "score": 0.6566517949104309, "sibling_score": 0.6566517949104309, "answer_score": null, "sibling_qid": "KOC-2024-03-0991-Q002", "sibling_text": "governor knobs what happens inside governor when u adjust speed setting knob", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Droop, isochronous operation and load sharing", "cross_family": true }, { "answer_id": "AEGOV-002", "score": 0.6021803021430969, "sibling_score": 0.6021803021430969, "answer_score": null, "sibling_qid": "KOL-2016-10-1243-Q002", "sibling_text": "woodward governor different knobs purpose", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Woodward / UG-8 Governor — Knobs and Adjustments", "cross_family": false }, { "answer_id": "AEGOV-003", "score": 0.5990720987319946, "sibling_score": 0.5990720987319946, "answer_score": null, "sibling_qid": "KOC-2026-04-1738-Q008", "sibling_text": "ae governor motor working", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Governor Motor / Actuator — Function and Operation", "cross_family": false } ] }, { "qid": "KOC-2025-12-0740-Q001", "text": "Type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2025-12-0740", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.837036669254303, "sibling_score": 0.837036669254303, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8018087148666382, "sibling_score": 0.8018087148666382, "answer_score": 0.5473707109689713, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8005447387695312, "sibling_score": 0.8005447387695312, "answer_score": 0.5217237085103988, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "KOC-2025-12-0740-Q006", "text": "Emergency shutdown system arrangement on your ship", "family": "Cargo Ops - Tankers", "subtopic": "IG System", "tid": "KOC-2025-12-0740", "tray": "review", "candidates": [ { "answer_id": "MSB-ESB-D-001", "score": 0.6559555530548096, "sibling_score": 0.6559555530548096, "answer_score": null, "sibling_qid": "KOL-2019-10-2328-Q002", "sibling_text": "emergency shutdowns onboard ship electrical related", "sibling_family": "", "via": "sibling", "answer_title": "Main & emergency switchboards: function, construction & ship power distribution", "cross_family": false }, { "answer_id": "CPFE-583-015", "score": 0.5888449549674988, "sibling_score": 0.5888449549674988, "answer_score": null, "sibling_qid": "KOC-2023-12-1823-Q001", "sibling_text": "emergency cargo pumping arrangements if framo fails", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Emergency cargo pumping when a pump fails or is damaged", "cross_family": false }, { "answer_id": "FOAM-P02-001", "score": 0.5858327150344849, "sibling_score": 0.5858327150344849, "answer_score": null, "sibling_qid": "MUM-2025-11-0556-Q009", "sibling_text": "fixed fire fighting system on deck of ur ship", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Draw and explain the fixed deck foam firefighting system used on a tanker.", "cross_family": true } ] }, { "qid": "KOC-2025-12-0741-Q001", "text": "what is scantling draft", "family": "", "subtopic": "Scantlings", "tid": "KOC-2025-12-0741", "tray": "review", "candidates": [ { "answer_id": "LLC-P05-001", "score": 0.6597901582717896, "sibling_score": 0.6597901582717896, "answer_score": 0.4452265679836273, "sibling_qid": "KOL-2025-07-0978-Q006", "sibling_text": "what is scantling draft", "sibling_family": "", "via": "sibling", "answer_title": "Freeboard, deck line, Plimsoll mark, assignment and scantling draft", "cross_family": false }, { "answer_id": "LLC-P05-002", "score": 0.4064054489135742, "sibling_score": 0.4064054489135742, "answer_score": null, "sibling_qid": "KOL-2022-04-0622-Q010", "sibling_text": "if ship in port after loading at certain draught when in sea draught inc or dec fresh water allowance", "sibling_family": "", "via": "sibling", "answer_title": "Fresh Water Allowance: formula, use and draft change", "cross_family": false }, { "answer_id": "LL-CONV-P06-003", "score": 0.3939615488052368, "sibling_score": 0.3939615488052368, "answer_score": null, "sibling_qid": "MUM-2026-02-0735-Q003", "sibling_text": "what is minimum draft", "sibling_family": "", "via": "sibling", "answer_title": "LLC-P06-03 - Subdivision load line, margin line and probabilistic subdivision", "cross_family": false } ] }, { "qid": "KOC-2025-12-0741-Q009", "text": "what is Butterworth Heater?", "family": "MARPOL - Annex I (Oil)", "subtopic": "COW / Crude Oil Wash", "tid": "KOC-2025-12-0741", "tray": "new", "candidates": [ { "answer_id": "BLRBURN-003", "score": 0.45770615339279175, "sibling_score": 0.45770615339279175, "answer_score": null, "sibling_qid": "KOC-2025-01-1023-Q012", "sibling_text": "rotary cup burner explain", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Draw and explain the rotary cup burner — its working and speed of rotation.", "cross_family": true }, { "answer_id": "CPFE-583-011", "score": 0.45393890142440796, "sibling_score": 0.45393890142440796, "answer_score": null, "sibling_qid": "MUM-2025-09-1187-Q007", "sibling_text": "farmo heating arrangement", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Heating arrangement and hydraulic oil in cold regions", "cross_family": true }, { "answer_id": "STHX-003", "score": 0.45179054141044617, "sibling_score": 0.45179054141044617, "answer_score": null, "sibling_qid": "MUM-2024-02-2223-Q005", "sibling_text": "pr testing of long shell and tube type heaters 3m in length", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "STHX-03 — Pressure and leak testing", "cross_family": true } ] }, { "qid": "KOC-2025-12-0741-Q010", "text": "what are the safties in that", "family": "MARPOL - Annex I (Oil)", "subtopic": "COW / Crude Oil Wash", "tid": "KOC-2025-12-0741", "tray": "new", "candidates": [ { "answer_id": "MSB-ESB-D-001", "score": 0.614891767501831, "sibling_score": 0.614891767501831, "answer_score": null, "sibling_qid": "KOC-2023-01-1226-Q003", "sibling_text": "safties in it", "sibling_family": "", "via": "sibling", "answer_title": "Main & emergency switchboards: function, construction & ship power distribution", "cross_family": false }, { "answer_id": "HV-SYS-P05-001", "score": 0.562096357345581, "sibling_score": 0.562096357345581, "answer_score": null, "sibling_qid": "KOL-2021-02-2423-Q003", "sibling_text": "hv additional safeties", "sibling_family": "", "via": "sibling", "answer_title": "HV switchboard (MSB): safeties, interlocks and protective features", "cross_family": false }, { "answer_id": "IGAT-583-001", "score": 0.5612868070602417, "sibling_score": 0.5612868070602417, "answer_score": null, "sibling_qid": "KOL-2017-03-0078-Q002", "sibling_text": "i g safeties", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "State all the alarms, trips and safety cut-outs provided on a tanker inert gas (IG) system.", "cross_family": true } ] }, { "qid": "KOC-2025-12-0743-Q008", "text": "SMS contents", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOC-2025-12-0743", "tray": "review", "candidates": [ { "answer_id": "SMSFR-002", "score": 0.8255332708358765, "sibling_score": 0.8255332708358765, "answer_score": null, "sibling_qid": "KOC-2022-03-0063-Q002", "sibling_text": "contents of sms", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the Safety Management System — the SMS manual, its contents, objectives, why it is needed onboard, and the company SMS policy?", "cross_family": false }, { "answer_id": "ISM-AUD-P02-004", "score": 0.8248836398124695, "sibling_score": 0.8248836398124695, "answer_score": 0.28442167937755586, "sibling_qid": "MUM-2022-08-0033-Q001", "sibling_text": "contents of sms", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "SMS contents, manuals, documents and drill records onboard", "cross_family": false }, { "answer_id": "ISM-SMCDOC-A-001", "score": 0.6641079783439636, "sibling_score": 0.6641079783439636, "answer_score": null, "sibling_qid": "MUM-2026-05-3182-Q002", "sibling_text": "what is sms", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM certificates: the DOC and SMC family", "cross_family": false } ] }, { "qid": "KOC-2025-12-0746-Q005", "text": "What jobs are not assigned to RSO?", "family": "Surveys - Statutory", "subtopic": "PSC / Flag / RO / CIC / MoU", "tid": "KOC-2025-12-0746", "tray": "new", "candidates": [ { "answer_id": "PSC-RO-P02-010", "score": 0.5685818791389465, "sibling_score": 0.5685818791389465, "answer_score": 0.28898799568414685, "sibling_qid": "KOC-2024-12-0489-Q003", "sibling_text": "what duties cannot be assigned to ro", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What are the duties, responsibilities and limitations of an RO?", "cross_family": false }, { "answer_id": "IACS-324-006", "score": 0.479348361492157, "sibling_score": 0.479348361492157, "answer_score": 0.2897201910614967, "sibling_qid": "KOC-2023-12-0255-Q003", "sibling_text": "what all actions on sro cannot perform", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "6. What actions or responsibilities cannot be assigned to an RO by the flag State?", "cross_family": false }, { "answer_id": "IACS-324-004", "score": 0.4391145706176758, "sibling_score": 0.4391145706176758, "answer_score": 0.23759121894836424, "sibling_qid": "KOC-2024-03-0325-Q007", "sibling_text": "ro duties", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "4. What are the duties or RO Code responsibilities of a Recognized Organization?", "cross_family": false } ] }, { "qid": "KOC-2025-12-0747-Q006", "text": "Certificates in MLC", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOC-2025-12-0747", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-006", "score": 0.7672824263572693, "sibling_score": 0.7672824263572693, "answer_score": 0.35982741713523864, "sibling_qid": "MUM-2026-06-3656-Q002", "sibling_text": "certificates under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false }, { "answer_id": "CERT-LIST-P01-001", "score": 0.5734274387359619, "sibling_score": 0.5734274387359619, "answer_score": null, "sibling_qid": "KOC-2023-01-0142-Q002", "sibling_text": "certificates", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "List the statutory certificates carried onboard a ship.", "cross_family": true }, { "answer_id": "LL-CONV-P04-002", "score": 0.556847333908081, "sibling_score": 0.556847333908081, "answer_score": null, "sibling_qid": "MUM-2025-06-0328-Q008", "sibling_text": "load line certificates", "sibling_family": "", "via": "sibling", "answer_title": "Load Line Convention, certificates, assigning authority and detention risk", "cross_family": false } ] }, { "qid": "KOC-2025-12-0747-Q007", "text": "Major Non-conformity", "family": "ISM Code", "subtopic": "Major / Minor NC", "tid": "KOC-2025-12-0747", "tray": "review", "candidates": [ { "answer_id": "ISMNC-002", "score": 0.7916684746742249, "sibling_score": 0.7916684746742249, "answer_score": 0.4382206559181213, "sibling_qid": "MUM-2026-08-3832-Q001", "sibling_text": "major non conformity", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a major non-conformity under the ISM Code? Give the definition and name some.", "cross_family": false }, { "answer_id": "ISMNC-003", "score": 0.7410873174667358, "sibling_score": 0.7410873174667358, "answer_score": 0.46195747554302213, "sibling_qid": "MUM-2025-01-0238-Q006", "sibling_text": "major non conformity and non conformity", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Differentiate between a major non-conformity and a non-conformity under the ISM Code.", "cross_family": false }, { "answer_id": "ISMNC-005", "score": 0.6825951933860779, "sibling_score": 0.6825951933860779, "answer_score": 0.49551347494125364, "sibling_qid": "KOL-2025-04-0931-Q012", "sibling_text": "example for major non confirmity", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Give examples of a non-conformity and of a major non-conformity.", "cross_family": false } ] }, { "qid": "KOC-2025-12-0747-Q008", "text": "Actions if you get MNC", "family": "ISM Code", "subtopic": "Major / Minor NC", "tid": "KOC-2025-12-0747", "tray": "review", "candidates": [ { "answer_id": "ISMNC-006", "score": 0.6838085055351257, "sibling_score": 0.6838085055351257, "answer_score": 0.21830573379993437, "sibling_qid": "MUM-2025-12-0649-Q011", "sibling_text": "what action if got mnc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Your ship has been issued a major non-conformity: what action do you take, what are the repercussions, and can the ship sail with it?", "cross_family": false }, { "answer_id": "ISMNC-003", "score": 0.5053155422210693, "sibling_score": 0.5053155422210693, "answer_score": null, "sibling_qid": "MUM-2023-06-2730-Q006", "sibling_text": "mnc nc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Differentiate between a major non-conformity and a non-conformity under the ISM Code.", "cross_family": false }, { "answer_id": "ISMNC-002", "score": 0.5031474828720093, "sibling_score": 0.5031474828720093, "answer_score": null, "sibling_qid": "MUM-2023-03-0091-Q009", "sibling_text": "define mnc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a major non-conformity under the ISM Code? Give the definition and name some.", "cross_family": false } ] }, { "qid": "KOC-2025-12-0748-Q007", "text": "MEPC 83 Internal No questions", "family": "IMO Structure & Conventions", "subtopic": "Latest MEPC Outcomes / GHG Strategy", "tid": "KOC-2025-12-0748", "tray": "review", "candidates": [ { "answer_id": "AV6-P01-01", "score": 0.667204737663269, "sibling_score": 0.667204737663269, "answer_score": null, "sibling_qid": "KOC-2026-02-0824-Q003", "sibling_text": "mepc 83", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Explain the latest Annex VI amendment or MEPC development, and state its date and status.", "cross_family": false }, { "answer_id": "IMO-5PIL-009", "score": 0.5384719371795654, "sibling_score": 0.5384719371795654, "answer_score": null, "sibling_qid": "MUM-2026-07-3822-Q002", "sibling_text": "mepc 83 outcome", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Latest MEPC meeting — highlights", "cross_family": false }, { "answer_id": "MEPC-GHG-003", "score": 0.5228683948516846, "sibling_score": 0.5228683948516846, "answer_score": null, "sibling_qid": "KOC-2024-05-0338-Q008", "sibling_text": "mepc 80 when what", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Explain MEPC 80 — when was it held and what was decided?", "cross_family": true } ] }, { "qid": "KOC-2025-12-0749-Q008", "text": "MLC title no.5", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOC-2025-12-0749", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.4878072738647461, "sibling_score": 0.4878072738647461, "answer_score": 0.31499205231666566, "sibling_qid": "KOC-2026-05-2135-Q011", "sibling_text": "mlc titles explain title 1 explain dmlc part 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "MLC-WRH-B-006", "score": 0.45277681946754456, "sibling_score": 0.45277681946754456, "answer_score": 0.27044182419776913, "sibling_qid": "MUM-2026-07-3680-Q005", "sibling_text": "what is mlc certificate under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false }, { "answer_id": "CLC-CIV-B-003", "score": 0.44083377718925476, "sibling_score": 0.44083377718925476, "answer_score": null, "sibling_qid": "KOL-2020-02-0392-Q002", "sibling_text": "llmc prescise 5 words", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "LLMC: purpose, scope and limitation of maritime claims", "cross_family": true } ] }, { "qid": "KOC-2025-12-0750-Q007", "text": "At yard a crack was found on rudder....did the repair work. As a 2E", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOC-2025-12-0750", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.7056055665016174, "sibling_score": 0.7056055665016174, "answer_score": null, "sibling_qid": "CHE-2026-03-0495-Q005", "sibling_text": "crack in the rudder as 2eng prepare repair plan internal deciding", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "WBS-C-006", "score": 0.48185913562774657, "sibling_score": null, "answer_score": 0.48185913562774657, "sibling_qid": "", "sibling_text": "propeller and rudder repair grading the damage and the class approved route grade the damage first minor nicks erosion bent tip vs crack major minor grind and blend out the notch restore a fair section keep balance small cold repair epoxy fillers for minor surface defects only", "sibling_family": "", "via": "answer_title", "answer_title": "Propeller and rudder repair — grading the damage and the Class-approved route", "cross_family": false }, { "answer_id": "HULL-DD-002", "score": 0.45350384116172787, "sibling_score": null, "answer_score": 0.45350384116172787, "sibling_qid": "", "sibling_text": "2 crack found in service on deck while sailing strength deck and shell carry hull girder bending a crack there can propagate fast under wave loading safety critical treat as urgent reduce the load ease speed alter course to ease pounding and slamming adjust ballast loading to relieve stress on the area avoid heavy weather", "sibling_family": "", "via": "answer_title", "answer_title": "2. Crack found in service / on deck while sailing", "cross_family": false } ] }, { "qid": "KOC-2025-12-0750-Q008", "text": "how will you make sure the repair work is satisfactory enough? ( I told him pressure testing of rudder. cross why pressure testing at 2.4 m water column)", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOC-2025-12-0750", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.6734405159950256, "sibling_score": 0.6734405159950256, "answer_score": null, "sibling_qid": "KOL-2018-09-3191-Q005", "sibling_text": "rudder dry dock inspection all clearance with values and how and where to take hydraulic pressure test what if crack what kind of welding tig why tig good for manual welding which clearance should higher than jumping and ridder washer clearance clearance value except for pintle bearing clearance which depends on pintle dia he was not happy with other values which are available from notes or nets", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "DDHSC-006", "score": 0.6039917469024658, "sibling_score": 0.6039917469024658, "answer_score": null, "sibling_qid": "MUM-2026-05-2994-Q005", "sibling_text": "sea chest checks in dry dock he want to test specific to sea chest valve type and pressure test", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "How is the sea chest inspected and maintained in drydock — including the valve and its pressure test — and which regulation requires it?", "cross_family": true }, { "answer_id": "HYD-602-002", "score": 0.5196510970592498, "sibling_score": null, "answer_score": 0.5196510970592498, "sibling_qid": "", "sibling_text": "why is the hydrostatic test carried out when is it done and what does it prove purpose prove the strength and pressure tightness of all pressure parts with a margin over working pressure when for new construction per the code after repair alteration or retubing of a pressure part per the approved scheme when condition or suspected loss of strength requires it and at any interval the flag class reg", "sibling_family": "", "via": "answer_title", "answer_title": "Why is the hydrostatic test carried out, when is it done, and what does it prove?", "cross_family": false } ] }, { "qid": "KOC-2025-12-0751-Q001", "text": "Type of vessel", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2025-12-0751", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8509957194328308, "sibling_score": 0.8509957194328308, "answer_score": null, "sibling_qid": "MUM-2026-06-3384-Q001", "sibling_text": "type of vessel", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.7775243520736694, "sibling_score": 0.7775243520736694, "answer_score": null, "sibling_qid": "CHE-2026-02-0481-Q001", "sibling_text": "type of vessels sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7703580260276794, "sibling_score": 0.7703580260276794, "answer_score": 0.5232111006975174, "sibling_qid": "CHE-2026-02-0109-Q001", "sibling_text": "type of ship explain what type is your vessel explain their type and difference", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "KOC-2025-12-0751-Q003", "text": "Loadicator", "family": "Stability & Loadicator", "subtopic": "Loadicator", "tid": "KOC-2025-12-0751", "tray": "new", "candidates": [ { "answer_id": "SOLAS12-BC-D-001", "score": 0.6221003532409668, "sibling_score": 0.6221003532409668, "answer_score": 0.34173858910799026, "sibling_qid": "KOC-2024-11-1425-Q007", "sibling_text": "why needed load indicator", "sibling_family": "", "via": "sibling", "answer_title": "Loadicator — why a loading instrument is required, and the loading-restriction concern", "cross_family": false }, { "answer_id": "LL-CONV-P06-004", "score": 0.5822386741638184, "sibling_score": 0.5822386741638184, "answer_score": 0.328193861246109, "sibling_qid": "KOC-2024-11-0463-Q009", "sibling_text": "loadline", "sibling_family": "", "via": "sibling", "answer_title": "LLC-P06-04 - General load-line requirement, marks, stability link and overloading consequences", "cross_family": false }, { "answer_id": "LS-IMB-A-001", "score": 0.5350642800331116, "sibling_score": 0.5350642800331116, "answer_score": null, "sibling_qid": "KOC-2024-11-1434-Q006", "sibling_text": "kw loading detail explanation", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Two paralleled generators sharing unequal load — cause and correction", "cross_family": true } ] }, { "qid": "KOC-2025-12-0752-Q004", "text": "Condition of class", "family": "Surveys - Statutory", "subtopic": "Condition of Class", "tid": "KOC-2025-12-0752", "tray": "review", "candidates": [ { "answer_id": "COC-001", "score": 0.8518552184104919, "sibling_score": 0.8518552184104919, "answer_score": 0.3837870821356773, "sibling_qid": "KOC-2026-04-0899-Q005", "sibling_text": "condition of class", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is a Condition of Class? Give examples, say where it is found, how much time is given to rectify it, and what happens if it is not met in time.", "cross_family": false }, { "answer_id": "COC-002", "score": 0.8065727353096008, "sibling_score": 0.8065727353096008, "answer_score": 0.40552918612957, "sibling_qid": "KOL-2016-12-0036-Q002", "sibling_text": "condition of class condition assessignment", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the difference between a Condition of Class and a Condition of Assignment?", "cross_family": false }, { "answer_id": "IACS-324-003", "score": 0.7032002806663513, "sibling_score": 0.7032002806663513, "answer_score": null, "sibling_qid": "KOC-2024-03-0321-Q011", "sibling_text": "how class can become ro explain conditions", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "3. What is a Recognized Organization, how is it recognized by a flag State, and how can a classification society become one?", "cross_family": false } ] }, { "qid": "KOC-2025-12-0752-Q007", "text": "Mob marker regulation", "family": "SOLAS - LSA & Lifeboats", "subtopic": "MOB Marker", "tid": "KOC-2025-12-0752", "tray": "review", "candidates": [ { "answer_id": "MOB-MKR-005", "score": 0.7448068261146545, "sibling_score": 0.7448068261146545, "answer_score": 0.3953273922204971, "sibling_qid": "KOC-2025-11-0724-Q002", "sibling_text": "mob marker solas regulation", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What is the SOLAS requirement and regulation for the MOB marker?", "cross_family": false }, { "answer_id": "MOB-MKR-001", "score": 0.7002791166305542, "sibling_score": 0.7002791166305542, "answer_score": 0.3471483588218689, "sibling_qid": "MUM-2026-06-3530-Q005", "sibling_text": "mob marker", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What is the MOB marker, what is it for, and what does it consist of? Give the full details.", "cross_family": false }, { "answer_id": "MOB-MKR-002", "score": 0.38050773143768307, "sibling_score": null, "answer_score": 0.38050773143768307, "sibling_qid": "", "sibling_text": "where is the mob marker stowed what is its exact location and what is the plate it rests on both bridge wings one each side equal distribution both sides is solas iii 7 1 3 quick release from the navigation bridge is the statutory requirement not the wing as such", "sibling_family": "", "via": "answer_title", "answer_title": "Where is the MOB marker stowed, what is its exact location, and what is the plate it rests on?", "cross_family": false } ] }, { "qid": "KOC-2025-12-0752-Q008", "text": "Orb missed entry", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "KOC-2025-12-0752", "tray": "review", "candidates": [ { "answer_id": "OWS-ORB-006", "score": 0.685285747051239, "sibling_score": 0.685285747051239, "answer_score": null, "sibling_qid": "MUM-2025-09-0447-Q007", "sibling_text": "orb entries", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "6. Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-005", "score": 0.63338702917099, "sibling_score": 0.63338702917099, "answer_score": 0.3052546441555023, "sibling_qid": "KOC-2026-05-0044-Q003", "sibling_text": "bunker miss entry procedure for orb", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "A missed bunker entry — how to add it, and how that differs from correcting a wrong entry", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-002", "score": 0.6271370053291321, "sibling_score": 0.6271370053291321, "answer_score": null, "sibling_qid": "CHE-2024-10-0509-Q002", "sibling_text": "orb entries all in detail", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "The Oil Record Book Part I — purpose, the letter codes, and how entries are made", "cross_family": false } ] }, { "qid": "KOC-2025-12-0754-Q003", "text": "turning circle", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOC-2025-12-0754", "tray": "new", "candidates": [ { "answer_id": "SLOWTURN-BT-001", "score": 0.586183488368988, "sibling_score": 0.586183488368988, "answer_score": null, "sibling_qid": "MUM-2023-05-2728-Q005", "sibling_text": "slow turning", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Slow turning of the main engine — the slow-turning valve and the failure alarm", "cross_family": true }, { "answer_id": "RVSG-213-001", "score": 0.5622065663337708, "sibling_score": 0.5622065663337708, "answer_score": null, "sibling_qid": "KOC-2025-02-1027-Q005", "sibling_text": "rotary vana diagram not circle diagram he ask me other diagram", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Construction, main parts, materials & vane fitment", "cross_family": false }, { "answer_id": "TG-MOTOR-005", "score": 0.5469177961349487, "sibling_score": 0.5469177961349487, "answer_score": null, "sibling_qid": "KOC-2025-01-1479-Q001", "sibling_text": "turning gear circuit diagram", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw the turning gear circuit diagram and explain the starter.", "cross_family": true } ] }, { "qid": "KOC-2025-12-0754-Q004", "text": "orb code C", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "KOC-2025-12-0754", "tray": "new", "candidates": [ { "answer_id": "OWS-ORB-006", "score": 0.6406962275505066, "sibling_score": 0.6406962275505066, "answer_score": null, "sibling_qid": "CHE-2026-05-0634-Q009", "sibling_text": "orb all codes", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "6. Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-002", "score": 0.522819459438324, "sibling_score": 0.522819459438324, "answer_score": null, "sibling_qid": "CHE-2026-05-0543-Q003", "sibling_text": "orb in details", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "The Oil Record Book Part I — purpose, the letter codes, and how entries are made", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-004", "score": 0.47107362747192383, "sibling_score": 0.47107362747192383, "answer_score": null, "sibling_qid": "KOC-2026-04-0906-Q013", "sibling_text": "orb weekly entry code and number", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Weekly ORB entries — the mandatory sludge retention record, the bunker entry, and what is voluntary", "cross_family": false } ] }, { "qid": "KOC-2025-12-0754-Q005", "text": "stern frame diagram", "family": "Ship Construction & Stability", "subtopic": "Stern Frame / Transom", "tid": "KOC-2025-12-0754", "tray": "review", "candidates": [ { "answer_id": "DUS-P5-03", "score": 0.7881640195846558, "sibling_score": 0.7881640195846558, "answer_score": 0.5381200313568115, "sibling_qid": "KOC-2021-07-0010-Q005", "sibling_text": "stern frame diagram", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Stern frame construction, cross-section and rudder-axis sketch", "cross_family": true }, { "answer_id": "SPR-STERN-002", "score": 0.7330709099769592, "sibling_score": 0.7330709099769592, "answer_score": null, "sibling_qid": "KOC-2022-08-0083-Q001", "sibling_text": "draw stern frame show arrangement how stern tube is supported on fwd area of stern frame", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Propeller draw & dry-dock blade repair", "cross_family": true }, { "answer_id": "STS-P02-003", "score": 0.6786318421363831, "sibling_score": 0.6786318421363831, "answer_score": 0.5105989187955856, "sibling_qid": "KOC-2023-01-1806-Q011", "sibling_text": "stern tube diagram", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "STS-P02-03 - Stern tube arrangement, fitting in hull and shaft support", "cross_family": true } ] }, { "qid": "KOC-2025-12-0755-Q001", "text": "Type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2025-12-0755", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8360850214958191, "sibling_score": 0.8360850214958191, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8013965487480164, "sibling_score": 0.8013965487480164, "answer_score": 0.5467735856771468, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.7998400330543518, "sibling_score": 0.7998400330543518, "answer_score": 0.5213733673095703, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "KOC-2025-12-0755-Q006", "text": "Mepc 83", "family": "IMO Structure & Conventions", "subtopic": "Latest MEPC Outcomes / GHG Strategy", "tid": "KOC-2025-12-0755", "tray": "review", "candidates": [ { "answer_id": "AV6-P01-01", "score": 0.7509970664978027, "sibling_score": 0.7509970664978027, "answer_score": null, "sibling_qid": "KOC-2026-02-0824-Q003", "sibling_text": "mepc 83", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Explain the latest Annex VI amendment or MEPC development, and state its date and status.", "cross_family": false }, { "answer_id": "IMO-5PIL-009", "score": 0.5823527574539185, "sibling_score": 0.5823527574539185, "answer_score": null, "sibling_qid": "MUM-2026-07-3822-Q002", "sibling_text": "mepc 83 outcome", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Latest MEPC meeting — highlights", "cross_family": false }, { "answer_id": "MEPC-GHG-003", "score": 0.5724703073501587, "sibling_score": 0.5724703073501587, "answer_score": null, "sibling_qid": "KOC-2024-05-0338-Q008", "sibling_text": "mepc 80 when what", "sibling_family": "MARPOL - 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Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Explain MEPC 80 — when was it held and what was decided?", "cross_family": true } ] }, { "qid": "KOC-2025-12-0757-Q009", "text": "ORB bunker missed entry code", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "KOC-2025-12-0757", "tray": "review", "candidates": [ { "answer_id": "ORB-IOPP-OWS-005", "score": 0.7427242398262024, "sibling_score": 0.7427242398262024, "answer_score": 0.39788951873779294, "sibling_qid": "KOC-2026-05-0044-Q003", "sibling_text": "bunker miss entry procedure for orb", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "A missed bunker entry — how to add it, and how that differs from correcting a wrong entry", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-004", "score": 0.7206477522850037, "sibling_score": 0.7206477522850037, "answer_score": null, "sibling_qid": "MUM-2026-08-3831-Q008", "sibling_text": "bunker entry in orb", "sibling_family": "MARPOL - 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Oxygen analyser: working principle and calibration", "cross_family": false } ] }, { "qid": "KOC-2025-12-0760-Q006", "text": "How ballast line is equipped onboard and how to rectify a hole on the ballast line", "family": "Workshop & Welding", "subtopic": "Pipe Fabrication", "tid": "KOC-2025-12-0760", "tray": "new", "candidates": [ { "answer_id": "PCD-P02-05", "score": 0.5492334365844727, "sibling_score": 0.5492334365844727, "answer_score": null, "sibling_qid": "MUM-2025-08-2824-Q005", "sibling_text": "how will you repair sleeve of ballast pump if damaged and spare not available onboard i told with cold repair either by metal putty or belzona putty result repeat", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Centrifugal / sea-water pump shaft repair — worn shaft, no spare", "cross_family": true }, { "answer_id": "CEM-BOX-002", "score": 0.5257024168968201, "sibling_score": 0.5257024168968201, "answer_score": 0.4395815908908844, "sibling_qid": "MUM-2023-03-0094-Q006", "sibling_text": "hole in sw line after low seachest how will you approach", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Hole or leak in the sea chest / seawater line—how do you approach it?", "cross_family": false }, { "answer_id": "PHL-001", "score": 0.5241938829421997, "sibling_score": 0.5241938829421997, "answer_score": 0.45982609391212464, "sibling_qid": "MUM-2026-02-2552-Q005", "sibling_text": "found hole in bilge suction main line after isolation and checks how to find out exact local of hole internet connection gone in between oral later i joined internal directly told fun 4b repeat and fun 6 pass", "sibling_family": "Pumps - 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As a 2E", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOC-2025-12-0770", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.7056055665016174, "sibling_score": 0.7056055665016174, "answer_score": null, "sibling_qid": "CHE-2026-03-0495-Q005", "sibling_text": "crack in the rudder as 2eng prepare repair plan internal deciding", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "WBS-C-006", "score": 0.4818591862916946, "sibling_score": null, "answer_score": 0.4818591862916946, "sibling_qid": "", "sibling_text": "propeller and rudder repair grading the damage and the class approved route grade the damage first minor nicks erosion bent tip vs crack major minor grind and blend out the notch restore a fair section keep balance small cold repair epoxy fillers for minor surface defects only", "sibling_family": "", "via": "answer_title", "answer_title": "Propeller and rudder repair — grading the damage and the Class-approved route", "cross_family": false }, { "answer_id": "HULL-DD-002", "score": 0.45350384116172787, "sibling_score": null, "answer_score": 0.45350384116172787, "sibling_qid": "", "sibling_text": "2 crack found in service on deck while sailing strength deck and shell carry hull girder bending a crack there can propagate fast under wave loading safety critical treat as urgent reduce the load ease speed alter course to ease pounding and slamming adjust ballast loading to relieve stress on the area avoid heavy weather", "sibling_family": "", "via": "answer_title", "answer_title": "2. Crack found in service / on deck while sailing", "cross_family": false } ] }, { "qid": "KOC-2025-12-0770-Q008", "text": "how will you make sure the repair work is satisfactory enough? ( I told him pressure testing of rudder. cross why pressure testing at 2.4 m water column)", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOC-2025-12-0770", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.6734405159950256, "sibling_score": 0.6734405159950256, "answer_score": null, "sibling_qid": "KOL-2018-09-3191-Q005", "sibling_text": "rudder dry dock inspection all clearance with values and how and where to take hydraulic pressure test what if crack what kind of welding tig why tig good for manual welding which clearance should higher than jumping and ridder washer clearance clearance value except for pintle bearing clearance which depends on pintle dia he was not happy with other values which are available from notes or nets", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "DDHSC-006", "score": 0.603991687297821, "sibling_score": 0.603991687297821, "answer_score": null, "sibling_qid": "MUM-2026-05-2994-Q005", "sibling_text": "sea chest checks in dry dock he want to test specific to sea chest valve type and pressure test", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "How is the sea chest inspected and maintained in drydock — including the valve and its pressure test — and which regulation requires it?", "cross_family": true }, { "answer_id": "HYD-602-002", "score": 0.5196510970592498, "sibling_score": null, "answer_score": 0.5196510970592498, "sibling_qid": "", "sibling_text": "why is the hydrostatic test carried out when is it done and what does it prove purpose prove the strength and pressure tightness of all pressure parts with a margin over working pressure when for new construction per the code after repair alteration or retubing of a pressure part per the approved scheme when condition or suspected loss of strength requires it and at any interval the flag class reg", "sibling_family": "", "via": "answer_title", "answer_title": "Why is the hydrostatic test carried out, when is it done, and what does it prove?", "cross_family": false } ] }, { "qid": "KOC-2025-12-0771-Q001", "text": "Type of vessel", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2025-12-0771", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8509957194328308, "sibling_score": 0.8509957194328308, "answer_score": null, "sibling_qid": "MUM-2026-06-3384-Q001", "sibling_text": "type of vessel", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.7775244116783142, "sibling_score": 0.7775244116783142, "answer_score": null, "sibling_qid": "CHE-2026-02-0481-Q001", "sibling_text": "type of vessels sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7703580260276794, "sibling_score": 0.7703580260276794, "answer_score": 0.5232111006975174, "sibling_qid": "CHE-2026-02-0109-Q001", "sibling_text": "type of ship explain what type is your vessel explain their type and difference", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "KOC-2025-12-0771-Q003", "text": "Loadicator", "family": "Stability & Loadicator", "subtopic": "Loadicator", "tid": "KOC-2025-12-0771", "tray": "new", "candidates": [ { "answer_id": "SOLAS12-BC-D-001", "score": 0.6221003532409668, "sibling_score": 0.6221003532409668, "answer_score": 0.34173858910799026, "sibling_qid": "KOC-2024-11-1425-Q007", "sibling_text": "why needed load indicator", "sibling_family": "", "via": "sibling", "answer_title": "Loadicator — why a loading instrument is required, and the loading-restriction concern", "cross_family": false }, { "answer_id": "LL-CONV-P06-004", "score": 0.5822386741638184, "sibling_score": 0.5822386741638184, "answer_score": 0.328193861246109, "sibling_qid": "KOC-2024-11-0463-Q009", "sibling_text": "loadline", "sibling_family": "", "via": "sibling", "answer_title": "LLC-P06-04 - General load-line requirement, marks, stability link and overloading consequences", "cross_family": false }, { "answer_id": "LS-IMB-A-001", "score": 0.5350642800331116, "sibling_score": 0.5350642800331116, "answer_score": null, "sibling_qid": "KOC-2024-11-1434-Q006", "sibling_text": "kw loading detail explanation", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Two paralleled generators sharing unequal load — cause and correction", "cross_family": true } ] }, { "qid": "KOC-2025-12-0772-Q001", "text": "Type of ship Contents of func 3", "family": "IMO Structure & Conventions", "subtopic": "IMO / Committees / Codes", "tid": "KOC-2025-12-0772", "tray": "new", "candidates": [ { "answer_id": "LLST-AB-002", "score": 0.619813084602356, "sibling_score": 0.619813084602356, "answer_score": null, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.5953235626220703, "sibling_score": 0.5953235626220703, "answer_score": 0.4278999030590057, "sibling_qid": "KOL-2016-12-0035-Q003", "sibling_text": "type a type b ship define", "sibling_family": "", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.5907069444656372, "sibling_score": 0.5907069444656372, "answer_score": null, "sibling_qid": "MUM-2026-03-0813-Q001", "sibling_text": "type of ship why only one function", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": true } ] }, { "qid": "KOC-2025-12-0772-Q003", "text": "Ism entry which year came in to force?Which ship accident caused this ?How ship were operating before ism?", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOC-2025-12-0772", "tray": "new", "candidates": [ { "answer_id": "ISM-AUD-P03-004", "score": 0.5896621346473694, "sibling_score": 0.5896621346473694, "answer_score": null, "sibling_qid": "MUM-2026-09-3958-Q004", "sibling_text": "ism implementation on a new ship", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Ensuring ISM / SMS is implemented and followed onboard", "cross_family": false }, { "answer_id": "RCA-INC-001", "score": 0.5505707263946533, "sibling_score": 0.5505707263946533, "answer_score": 0.44973793923854827, "sibling_qid": "KOL-2025-09-1058-Q003", "sibling_text": "under ism proper reporting procedure for accident or incident on board", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "RCA-INC-01 — Reporting procedure for an accident or incident on board under ISM / SMS", "cross_family": false }, { "answer_id": "ISM-SMCDOC-A-001", "score": 0.545945405960083, "sibling_score": 0.545945405960083, "answer_score": null, "sibling_qid": "KOL-2019-10-0327-Q004", "sibling_text": "ism full background of ism sms doc what certificate on board should comply with doc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM certificates: the DOC and SMC family", "cross_family": false } ] }, { "qid": "KOC-2025-12-0773-Q002", "text": "TPA and immersion suit", "family": "SOLAS - LSA & Lifeboats", "subtopic": "LSA Code", "tid": "KOC-2025-12-0773", "tray": "new", "candidates": [ { "answer_id": "LB-SURV-C-003", "score": 0.5221763253211975, "sibling_score": 0.5221763253211975, "answer_score": null, "sibling_qid": "CHE-2026-02-0103-Q002", "sibling_text": "immersion suit monthly 6 month and annual maintenance", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Routine maintenance ladder — weekly / monthly / quarterly / 6-monthly onboard checks", "cross_family": false }, { "answer_id": "SCBA-EEBD-005", "score": 0.4761941730976105, "sibling_score": 0.4761941730976105, "answer_score": 0.3796566531062126, "sibling_qid": "KOL-2017-01-0042-Q005", "sibling_text": "difference between firemans outfit ppa immerssion suit when it is used", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fireman's outfit vs PPA vs immersion suit — what each is, when used", "cross_family": true }, { "answer_id": "LSA-LB-A-008", "score": 0.44675636291503906, "sibling_score": 0.44675636291503906, "answer_score": null, "sibling_qid": "CHE-2025-12-0328-Q005", "sibling_text": "lifeboat sprinkler system testing without immersing into water", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Water-spray (sprinkler) system — testing without launching", "cross_family": false } ] }, { "qid": "KOC-2025-12-0773-Q004", "text": "Ship particular's daigram", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2025-12-0773", "tray": "new", "candidates": [ { "answer_id": "GA-GI-DWG-002", "score": 0.6361085176467896, "sibling_score": 0.6361085176467896, "answer_score": null, "sibling_qid": "KOL-2019-10-0333-Q003", "sibling_text": "line drawings of ship wanted to hear sheer diagram body line diagram half breath plan", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "2. What are the sheer plan, body plan and half-breadth plan?", "cross_family": true }, { "answer_id": "COT-P02-01", "score": 0.6355542540550232, "sibling_score": 0.6355542540550232, "answer_score": null, "sibling_qid": "KOC-2022-01-0046-Q001", "sibling_text": "ship s ig system draw and explain", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Draw and explain the complete tanker inert-gas system from gas production to the cargo tanks, identifying the main plant, control and deck components.", "cross_family": true }, { "answer_id": "KGF-A-004", "score": 0.6286578178405762, "sibling_score": 0.6286578178405762, "answer_score": 0.45396883487701417, "sibling_qid": "KOC-2024-05-0339-Q002", "sibling_text": "transverse sectional diagram of ship", "sibling_family": "", "via": "sibling", "answer_title": "Hull / midship cross-section: draw & identify", "cross_family": false } ] }, { "qid": "KOC-2025-12-0774-Q004", "text": "■orb code c explain", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "KOC-2025-12-0774", "tray": "new", "candidates": [ { "answer_id": "OWS-ORB-006", "score": 0.5839923024177551, "sibling_score": 0.5839923024177551, "answer_score": null, "sibling_qid": "CHE-2026-05-0634-Q009", "sibling_text": "orb all codes", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "6. Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-002", "score": 0.5189384818077087, "sibling_score": 0.5189384818077087, "answer_score": null, "sibling_qid": "CHE-2026-05-0543-Q003", "sibling_text": "orb in details", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "The Oil Record Book Part I — purpose, the letter codes, and how entries are made", "cross_family": false }, { "answer_id": "OPRC-SALV-001", "score": 0.41221681237220764, "sibling_score": 0.41221681237220764, "answer_score": null, "sibling_qid": "MUM-2026-06-3603-Q008", "sibling_text": "oprc explain", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "OPRC Convention — what it is, objectives, entry into force", "cross_family": true } ] }, { "qid": "KOC-2025-12-0775-Q003", "text": "Type of ship sailed", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2025-12-0775", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8460314869880676, "sibling_score": 0.8460314869880676, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8450428247451782, "sibling_score": 0.8450428247451782, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7928010821342468, "sibling_score": 0.7928010821342468, "answer_score": null, "sibling_qid": "CHE-2026-03-0253-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "KOC-2025-12-0775-Q010", "text": "Safcon survey", "family": "Surveys - Statutory", "subtopic": "Safety Construction / Cargo Safety Cert", "tid": "KOC-2025-12-0775", "tray": "new", "candidates": [ { "answer_id": "SVY-SCOPE-002", "score": 0.5715034008026123, "sibling_score": 0.5715034008026123, "answer_score": null, "sibling_qid": "MUM-2025-05-2800-Q005", "sibling_text": "safcon survey as 2nd engg", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is checked in the engine room during a SAFCON (Safety Construction) survey?", "cross_family": false }, { "answer_id": "CERT-LIST-P02-003", "score": 0.5604371428489685, "sibling_score": 0.5604371428489685, "answer_score": null, "sibling_qid": "KOC-2025-01-2059-Q008", "sibling_text": "cof and cof related surveys internal", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Certificates that decide ship type and permitted cargo", "cross_family": false }, { "answer_id": "AFS-309-003", "score": 0.5197813510894775, "sibling_score": 0.5197813510894775, "answer_score": null, "sibling_qid": "KOC-2023-12-0252-Q005", "sibling_text": "how is survey related to afs carried out", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "IAFS Certificate, survey, validity and drydock compliance", "cross_family": true } ] }, { "qid": "KOC-2025-12-0775-Q012", "text": "Insurance certificate in MLC", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOC-2025-12-0775", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-006", "score": 0.6917998194694519, "sibling_score": 0.6917998194694519, "answer_score": 0.36991795301437375, "sibling_qid": "MUM-2026-06-3656-Q002", "sibling_text": "certificates under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false }, { "answer_id": "CLC-CIV-B-004", "score": 0.6430245637893677, "sibling_score": 0.6430245637893677, "answer_score": 0.36508717089891435, "sibling_qid": "KOL-2023-10-0781-Q006", "sibling_text": "mlc certificate p i club marine insurance", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Marine insurance and the P&I club: hull cover vs liability cover", "cross_family": true }, { "answer_id": "IAPP-595-003", "score": 0.5401849150657654, "sibling_score": 0.5401849150657654, "answer_score": null, "sibling_qid": "CHE-2026-05-0608-Q013", "sibling_text": "who will issue that certificate he himself told p i club or other insurance provider", "sibling_family": "Marine Insurance", "via": "sibling", "answer_title": "Under which regulation does the IAPP certificate come, and who issues it?", "cross_family": true } ] }, { "qid": "KOC-2025-12-0776-Q004", "text": "ISM CODE", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOC-2025-12-0776", "tray": "review", "candidates": [ { "answer_id": "ISM-ELEM-002", "score": 0.7964306473731995, "sibling_score": 0.7964306473731995, "answer_score": 0.4166958749294281, "sibling_qid": "MUM-2026-06-3653-Q001", "sibling_text": "ism code", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the ISM Code?", "cross_family": false }, { "answer_id": "ISM-ELEM-003", "score": 0.41530013382434844, "sibling_score": null, "answer_score": 0.41530013382434844, "sibling_qid": "", "sibling_text": "elements chapters structure of the ism code part a implementation the 12 elements 1 general 1 1 definitions 1 2 objectives 1 3 application 1 4 functional requirements for an sms", "sibling_family": "", "via": "answer_title", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": false }, { "answer_id": "ISM-AUD-P02-002", "score": 0.38914170414209365, "sibling_score": null, "answer_score": 0.38914170414209365, "sibling_qid": "", "sibling_text": "ism code what it is purpose objectives and structure full name carries both limbs safe operation of ships and pollution prevention never drop the pollution half adopted by resolution a 741 18 in 1993 given legal force through solas chapter ix in force 1 july 1998 phase 1", "sibling_family": "", "via": "answer_title", "answer_title": "ISM Code — what it is, purpose, objectives and structure", "cross_family": false } ] }, { "qid": "KOC-2025-12-1078-Q001", "text": "How do you adjust FQS", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Injection System", "tid": "KOC-2025-12-1078", "tray": "review", "candidates": [ { "answer_id": "VIT-MECH-B-002", "score": 0.6667171120643616, "sibling_score": 0.6667171120643616, "answer_score": 0.32997794151306153, "sibling_qid": "KOL-2017-08-1316-Q006", "sibling_text": "fqs setting adjustment", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How VIT is adjusted and set — timing and fuel-quality (FQS) interactions", "cross_family": false }, { "answer_id": "CPP-ATC-02", "score": 0.6348150968551636, "sibling_score": 0.6348150968551636, "answer_score": 0.4396413743495941, "sibling_qid": "CHE-2026-05-0551-Q012", "sibling_text": "fqs adjustment", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "FQS adjustment — what it is, why used, how set", "cross_family": true }, { "answer_id": "FCL-P02-001", "score": 0.5109981894493103, "sibling_score": 0.5109981894493103, "answer_score": null, "sibling_qid": "MUM-2026-03-2942-Q006", "sibling_text": "3 how to adjust", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel pump / injection timing check, setting, and adjustment", "cross_family": false } ] }, { "qid": "KOC-2025-12-1078-Q002", "text": "Suction valve of Main engine fuel pump construction", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Pump Delivery Valve", "tid": "KOC-2025-12-1078", "tray": "review", "candidates": [ { "answer_id": "PUNCT-VLV-002", "score": 0.7273716926574707, "sibling_score": 0.7273716926574707, "answer_score": 0.5360284209251404, "sibling_qid": "MUM-2024-02-1074-Q002", "sibling_text": "construction of puncture valve components working what is there for sealing of air and fuel what is the pressure of fuel pump discharge", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Construction, components, working and sealing arrangement", "cross_family": false }, { "answer_id": "FP-OVHL-006", "score": 0.7094911336898804, "sibling_score": 0.7094911336898804, "answer_score": 0.5762024998664855, "sibling_qid": "KOL-2024-12-1792-Q003", "sibling_text": "sulzer fuel pump construction working princle", "sibling_family": "2-Stroke - 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Internal", "family": "Boilers - Operations & Firing", "subtopic": "Uptake Fire", "tid": "KOC-2025-12-1088", "tray": "review", "candidates": [ { "answer_id": "BFEYE-340-003", "score": 0.7131744027137756, "sibling_score": 0.7131744027137756, "answer_score": null, "sibling_qid": "KOL-2018-01-1344-Q004", "sibling_text": "boiler combustion system how flame established etc", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler firing / ignition sequence: pilot burner, primary and secondary flame, ignition transformer", "cross_family": false }, { "answer_id": "UPT-FIRE-001", "score": 0.6983646750450134, "sibling_score": 0.6983646750450134, "answer_score": null, "sibling_qid": "KOL-2019-11-3288-Q002", "sibling_text": "actions as 2 e on boiler uptake fire", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "The 4/E reports an uptake fire — your actions as 2/E", "cross_family": false }, { "answer_id": "UPT-FIRE-002", "score": 0.6815200448036194, "sibling_score": 0.6815200448036194, "answer_score": 0.5884170711040496, "sibling_qid": "KOC-2024-10-1871-Q004", "sibling_text": "how boiler update fire takes place", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "How a boiler uptake fire takes place — indications and prevention", "cross_family": false } ] }, { "qid": "KOC-2025-12-1088-Q014", "text": "What all checks you do on Main engine cylinder head during rounds ( specifically as second engineer)", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Cover / Head", "tid": "KOC-2025-12-1088", "tray": "review", "candidates": [ { "answer_id": "CCH-590-002", "score": 0.7662422060966492, "sibling_score": 0.7662422060966492, "answer_score": null, "sibling_qid": "CHE-2026-03-0486-Q010", "sibling_text": "cylinder head overhauling and checks", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "How do you pressure test a cylinder head, and how do you find and rectify a leak from it?", "cross_family": false }, { "answer_id": "PIST-CSI-B-003", "score": 0.7326714396476746, "sibling_score": 0.7326714396476746, "answer_score": null, "sibling_qid": "KOL-2018-12-1865-Q001", "sibling_text": "what as a second engineer i will check on piston piston ring many cross question", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Inspecting, calibrating and gauging a removed piston", "cross_family": false }, { "answer_id": "PIST-CSI-C-002", "score": 0.7200747132301331, "sibling_score": 0.7200747132301331, "answer_score": null, "sibling_qid": "CHE-2026-02-0484-Q006", "sibling_text": "during and after overhauling what checks u do in ae cylinder head", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Piston pressure / hydraulic leak testing after overhaul", "cross_family": true } ] }, { "qid": "KOC-2025-12-1653-Q001", "text": "Zone", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOC-2025-12-1653", "tray": "new", "candidates": [ { "answer_id": "UNCLOS-003", "score": 0.6085424423217773, "sibling_score": 0.6085424423217773, "answer_score": 0.325634191930294, "sibling_qid": "KOL-2023-09-0768-Q002", "sibling_text": "what contiguous zone", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What are the maritime zones under UNCLOS — territorial waters, the contiguous zone and the international maritime boundary?", "cross_family": false }, { "answer_id": "TNK-SAFE-BF26-003", "score": 0.478202760219574, "sibling_score": 0.478202760219574, "answer_score": 0.36646933406591414, "sibling_qid": "MUM-2026-03-0860-Q005", "sibling_text": "how many zone in oil tanker", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What safeties, including electrical safeties and Ex ratings, are provided on the deck of a tanker?", "cross_family": false }, { "answer_id": "EXD-EXI-A-002", "score": 0.47432246804237366, "sibling_score": 0.47432246804237366, "answer_score": null, "sibling_qid": "KOC-2023-01-1226-Q009", "sibling_text": "explosion proof definition and zone", "sibling_family": "", "via": "sibling", "answer_title": "Ex d (flameproof / explosion-proof) — construction, shipboard applications and maintenance", "cross_family": false } ] }, { "qid": "KOC-2025-12-1653-Q002", "text": "Zone 1 and Zone 2", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOC-2025-12-1653", "tray": "new", "candidates": [ { "answer_id": "UNCLOS-003", "score": 0.46476060152053833, "sibling_score": 0.46476060152053833, "answer_score": 0.25360452234745023, "sibling_qid": "KOL-2023-09-0768-Q002", "sibling_text": "what contiguous zone", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What are the maritime zones under UNCLOS — territorial waters, the contiguous zone and the international maritime boundary?", "cross_family": false }, { "answer_id": "A6-NSEC-005", "score": 0.41862931847572327, "sibling_score": 0.41862931847572327, "answer_score": null, "sibling_qid": "KOC-2021-11-0039-Q005", "sibling_text": "seemp 1 and 2", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP — Part I, II & III", "cross_family": false }, { "answer_id": "GRB-321-004", "score": 0.38712480664253235, "sibling_score": 0.38712480664253235, "answer_score": null, "sibling_qid": "MUM-2026-05-3223-Q006", "sibling_text": "grb part 1 and 2", "sibling_family": "MARPOL - Annex V (Garbage)", "via": "sibling", "answer_title": "Garbage Record Book — Part I and Part II", "cross_family": false } ] }, { "qid": "KOC-2025-12-1655-Q006", "text": "Draw an intrinsically safe circuit", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOC-2025-12-1655", "tray": "new", "candidates": [ { "answer_id": "HAZ-EX-B-001", "score": 0.633175790309906, "sibling_score": 0.633175790309906, "answer_score": 0.4205370634794235, "sibling_qid": "KOC-2026-08-2121-Q007", "sibling_text": "intrinsically safe circuit diagram explain", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Intrinsically safe (Ex i) equipment — what it is, how it works, where it is used, how you identify it", "cross_family": false }, { "answer_id": "HYDRO-001", "score": 0.5637513995170593, "sibling_score": 0.5637513995170593, "answer_score": 0.39895077645778654, "sibling_qid": "KOC-2023-08-1274-Q006", "sibling_text": "draw hydrophore power and control circuit safety", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Draw and explain the hydrophore circuit diagram — power and control circuits, starter and safeties (one-motor version)", "cross_family": false }, { "answer_id": "SDST-A-001", "score": 0.5517861247062683, "sibling_score": 0.5517861247062683, "answer_score": null, "sibling_qid": "KOL-2023-04-2646-Q007", "sibling_text": "again showed the same circuit diagram and asked to draw star delta starter was unable to draw properly internal again took safety oral", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false } ] }, { "qid": "KOC-2025-12-1656-Q004", "text": "Main power supply regulation", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator / Generator", "tid": "KOC-2025-12-1656", "tray": "review", "candidates": [ { "answer_id": "EMG-DG-P02-FINAL-2-001", "score": 0.672036349773407, "sibling_score": 0.672036349773407, "answer_score": null, "sibling_qid": "KOL-2022-09-2601-Q003", "sibling_text": "regulation for emergency power system", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Emergency generator loads and duration of emergency supply", "cross_family": false }, { "answer_id": "AVR-EXC-H-003", "score": 0.6677358150482178, "sibling_score": 0.6677358150482178, "answer_score": 0.4668711692094803, "sibling_qid": "KOC-2023-07-0203-Q004", "sibling_text": "voltage regulation", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Voltage regulation, dip, droop and transient response", "cross_family": false }, { "answer_id": "VDIP-589-004", "score": 0.6593473553657532, "sibling_score": 0.6593473553657532, "answer_score": null, "sibling_qid": "KOL-2020-03-2380-Q002", "sibling_text": "regulation of generator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "What is voltage regulation of a generator?", "cross_family": false } ] }, { "qid": "KOC-2025-12-1656-Q009", "text": "When you put all generator in manual what happen", "family": "Electrical - Generator & Alternator", "subtopic": "Synchronization", "tid": "KOC-2025-12-1656", "tray": "new", "candidates": [ { "answer_id": "SYNC-C-001", "score": 0.5560497045516968, "sibling_score": 0.5560497045516968, "answer_score": null, "sibling_qid": "KOC-2026-09-2168-Q011", "sibling_text": "generator taking on load in manual", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Paralleling generators — procedure, conditions and practical checks", "cross_family": false }, { "answer_id": "SYNCRO-A-001", "score": 0.4625023603439331, "sibling_score": 0.4625023603439331, "answer_score": null, "sibling_qid": "CHE-2026-03-0359-Q001S6", "sibling_text": "your generators not getting synchronised when you re trying what you will do deciding ques", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Synchroscope — construction, working, purpose & circuit/principle", "cross_family": false }, { "answer_id": "SYNC-C-002", "score": 0.444186806678772, "sibling_score": 0.444186806678772, "answer_score": null, "sibling_qid": "KOC-2025-01-1472-Q004", "sibling_text": "if synchroncope not working how will you take generator on load", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Synchronising without a synchroscope — lamp, voltmeter and alternative methods", "cross_family": false } ] }, { "qid": "KOC-2025-12-1657-Q005", "text": "Exi exe,zener barrier", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOC-2025-12-1657", "tray": "new", "candidates": [ { "answer_id": "EPC-P02-03", "score": 0.5521962642669678, "sibling_score": 0.5521962642669678, "answer_score": 0.36750102937221524, "sibling_qid": "MUM-2026-07-3813-Q002", "sibling_text": "zener barrier full explanation every component", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Where is a zener diode used on board and why — voltage regulator, AVR, clipper — and explain one application in detail.", "cross_family": false }, { "answer_id": "EPC-P02-01", "score": 0.5517516136169434, "sibling_score": 0.5517516136169434, "answer_score": 0.4004409551620483, "sibling_qid": "MUM-2026-02-1957-Q003", "sibling_text": "zener barrier full explanation every component", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a zener diode? Draw its symbol, explain its working principle, and draw and explain its characteristic curve including the zener (breakdown) voltage.", "cross_family": false }, { "answer_id": "HAZ-EX-B-001", "score": 0.5304563045501709, "sibling_score": 0.5304563045501709, "answer_score": null, "sibling_qid": "CHE-2026-03-0358-Q005", "sibling_text": "zener barrier working in intrinsically safe", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Intrinsically safe (Ex i) equipment — what it is, how it works, where it is used, how you identify it", "cross_family": false } ] }, { "qid": "KOC-2025-12-1659-Q003", "text": "Draw transfer pump circuit diagram", "family": "Electrical - Motors & Starters", "subtopic": "Starter Panel / Control Circuit", "tid": "KOC-2025-12-1659", "tray": "review", "candidates": [ { "answer_id": "FIRE-P01-01", "score": 0.6501006484031677, "sibling_score": 0.6501006484031677, "answer_score": null, "sibling_qid": "KOC-2021-11-0034-Q005", "sibling_text": "he want drawing with control cabinet ie dotted line represnting start signal of pump emergency source of supply just keep talking abt the sytem", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist / water-mist system — draw and explain the machinery-space arrangement and normal working", "cross_family": true }, { "answer_id": "WIND-CRN-P01-002", "score": 0.6380884051322937, "sibling_score": 0.6380884051322937, "answer_score": 0.42085297852754594, "sibling_qid": "KOC-2024-12-1445-Q004", "sibling_text": "draw crane circuit diagram", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Crane motor power & control circuit (draw and explain)", "cross_family": false }, { "answer_id": "HSAP-583-A-001", "score": 0.6262128353118896, "sibling_score": 0.6262128353118896, "answer_score": null, "sibling_qid": "KOC-2022-02-0956-Q010", "sibling_text": "heleshew pump diagram working", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Hele-Shaw pump: construction and working — draw and explain", "cross_family": true } ] }, { "qid": "KOC-2025-12-1659-Q005", "text": "How to order MSW pump Motor", "family": "Electrical - Motors & Starters", "subtopic": "Motor Specification / Ordering", "tid": "KOC-2025-12-1659", "tray": "review", "candidates": [ { "answer_id": "IP-ENCL-001", "score": 0.7271855473518372, "sibling_score": 0.7271855473518372, "answer_score": null, "sibling_qid": "KOC-2025-02-1497-Q002", "sibling_text": "how to order a s w pump motor asked about ip rating", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "IP rating of motors — what the numbers mean", "cross_family": false }, { "answer_id": "BRG-NOM-001", "score": 0.7143229246139526, "sibling_score": 0.7143229246139526, "answer_score": null, "sibling_qid": "MUM-2026-03-1989-Q002", "sibling_text": "how to order a motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Bearing Numbers, Suffixes and What to State When Ordering", "cross_family": false }, { "answer_id": "IP-ENCL-002", "score": 0.71391361951828, "sibling_score": 0.71391361951828, "answer_score": null, "sibling_qid": "KOC-2025-12-1658-Q005", "sibling_text": "how to order main sea water pump motor and ip and class", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Suitable IP rating by location — ER, deck, pump, generator", "cross_family": false } ] }, { "qid": "KOC-2025-12-1668-Q002", "text": "if during parallel operation ONE:ONE generator looses excitation what will happen", "family": "Electrical - Generator & Alternator", "subtopic": "Residual Magnetism / Flashing", "tid": "KOC-2025-12-1668", "tray": "review", "candidates": [ { "answer_id": "AVR-EXC-G-003", "score": 0.7751827836036682, "sibling_score": 0.7751827836036682, "answer_score": 0.5843548357486724, "sibling_qid": "MUM-2023-03-1380-Q003", "sibling_text": "2 generators one loses excitation what happens", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Loss or reduction of excitation: effect and action", "cross_family": false }, { "answer_id": "SYNC-C-001", "score": 0.7129672169685364, "sibling_score": 0.7129672169685364, "answer_score": null, "sibling_qid": "CHE-2026-05-0581-Q005", "sibling_text": "two generator running in parallel if one prime mover stops suddenly and asked what will happen after this", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Paralleling generators — procedure, conditions and practical checks", "cross_family": false }, { "answer_id": "LS-IMB-A-001", "score": 0.7025002241134644, "sibling_score": 0.7025002241134644, "answer_score": null, "sibling_qid": "MUM-2026-07-3748-Q004", "sibling_text": "two generator running parallel sharing equal load one of generator suddenly off load what r the reason", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Two paralleled generators sharing unequal load — cause and correction", "cross_family": false } ] }, { "qid": "KOC-2025-12-1669-Q005", "text": "Types of AVR? Explain static AVR? How does voltage build up in a generator which has just started? (I said residual magnetism. He accepted)", "family": "Electrical - Generator & Alternator", "subtopic": "Residual Magnetism / Flashing", "tid": "KOC-2025-12-1669", "tray": "review", "candidates": [ { "answer_id": "AVR-EXC-E-001", "score": 0.9004611968994141, "sibling_score": 0.9004611968994141, "answer_score": 0.5085658252239227, "sibling_qid": "KOC-2025-12-0745-Q005", "sibling_text": "types of avr explain static avr how does voltage build up in a generator which has just started i said residual magnetism he accepted", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "How does a static AVR / static excitation system work? (draw & explain)", "cross_family": false }, { "answer_id": "AVR-EXC-D-001", "score": 0.6949108242988586, "sibling_score": 0.6949108242988586, "answer_score": 0.558615219593048, "sibling_qid": "KOC-2024-10-1415-Q004", "sibling_text": "types of excitation explain static avr", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Static AVR / static excitation — types of AVR, and how the static system works", "cross_family": false }, { "answer_id": "AVR-EXC-G-002", "score": 0.635760486125946, "sibling_score": 0.635760486125946, "answer_score": null, "sibling_qid": "KOL-2025-08-2826-Q010", "sibling_text": "avr construction how it generates dc supply to dc exciter", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Brushless excitation: how DC reaches the rotor", "cross_family": false } ] }, { "qid": "KOC-2025-12-1670-Q005", "text": "Exi exe,zener barrier", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOC-2025-12-1670", "tray": "new", "candidates": [ { "answer_id": "EPC-P02-03", "score": 0.552196204662323, "sibling_score": 0.552196204662323, "answer_score": 0.36750102937221524, "sibling_qid": "MUM-2026-07-3813-Q002", "sibling_text": "zener barrier full explanation every component", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Where is a zener diode used on board and why — voltage regulator, AVR, clipper — and explain one application in detail.", "cross_family": false }, { "answer_id": "EPC-P02-01", "score": 0.5517516136169434, "sibling_score": 0.5517516136169434, "answer_score": 0.4004409804940224, "sibling_qid": "MUM-2026-02-1957-Q003", "sibling_text": "zener barrier full explanation every component", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a zener diode? Draw its symbol, explain its working principle, and draw and explain its characteristic curve including the zener (breakdown) voltage.", "cross_family": false }, { "answer_id": "HAZ-EX-B-001", "score": 0.5304563045501709, "sibling_score": 0.5304563045501709, "answer_score": null, "sibling_qid": "CHE-2026-03-0358-Q005", "sibling_text": "zener barrier working in intrinsically safe", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Intrinsically safe (Ex i) equipment — what it is, how it works, where it is used, how you identify it", "cross_family": false } ] }, { "qid": "KOC-2025-12-1674-Q009", "text": "What is frame number in motor", "family": "Electrical - Motors & Starters", "subtopic": "Frame Number", "tid": "KOC-2025-12-1674", "tray": "review", "candidates": [ { "answer_id": "ELECTRICAL-M-A-01", "score": 0.8215402960777283, "sibling_score": 0.8215402960777283, "answer_score": 0.5523625791072845, "sibling_qid": "NOI-2026-09-0005-Q009", "sibling_text": "frame number of motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Motor Frame Number", "cross_family": false }, { "answer_id": "KGF-A-002", "score": 0.6448254585266113, "sibling_score": 0.6448254585266113, "answer_score": 0.4906114339828491, "sibling_qid": "KOC-2026-08-2115-Q010", "sibling_text": "frame number", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Frame numbering, spacing & identification", "cross_family": true }, { "answer_id": "IP-ENCL-001", "score": 0.5559579730033875, "sibling_score": 0.5559579730033875, "answer_score": null, "sibling_qid": "MUM-2026-01-1899-Q009", "sibling_text": "motor number of terminal", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "IP rating of motors — what the numbers mean", "cross_family": false } ] }, { "qid": "KOC-2025-12-1675-Q004", "text": "Frame number", "family": "Electrical - Motors & Starters", "subtopic": "Frame Number", "tid": "KOC-2025-12-1675", "tray": "review", "candidates": [ { "answer_id": "ELECTRICAL-M-A-01", "score": 0.8881889581680298, "sibling_score": 0.8881889581680298, "answer_score": 0.48520761728286743, "sibling_qid": "MUM-2026-03-1997-Q004", "sibling_text": "frame number", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Motor Frame Number", "cross_family": false }, { "answer_id": "KGF-A-002", "score": 0.8374899625778198, "sibling_score": 0.8374899625778198, "answer_score": 0.5914016842842101, "sibling_qid": "KOC-2026-08-2115-Q010", "sibling_text": "frame number", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Frame numbering, spacing & identification", "cross_family": true }, { "answer_id": "SHELL-PLT-A-001", "score": 0.6664532423019409, "sibling_score": 0.6664532423019409, "answer_score": null, "sibling_qid": "KOC-2024-08-0392-Q013", "sibling_text": "frame numbering shell expansion plan", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "The shell expansion plan, and how you identify a plate", "cross_family": true } ] }, { "qid": "KOC-2025-12-1676-Q001", "text": "Draw and explain 3 point starter for Dc Motorand cross", "family": "Electrical - Motors & Starters", "subtopic": "DC Motor Three-Point Starter", "tid": "KOC-2025-12-1676", "tray": "review", "candidates": [ { "answer_id": "SDST-A-001", "score": 0.7632425427436829, "sibling_score": 0.7632425427436829, "answer_score": 0.5285074084997177, "sibling_qid": "KOC-2026-05-2140-Q008", "sibling_text": "draw and explain 3 point starter for dc motor and star delta", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false }, { "answer_id": "STR-DEC-A-001", "score": 0.6827109456062317, "sibling_score": 0.6827109456062317, "answer_score": null, "sibling_qid": "KOC-2023-05-1257-Q008", "sibling_text": "what are the type of ac starters how will you control starting in dc motor three point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "TG-MOTOR-005", "score": 0.549187570810318, "sibling_score": null, "answer_score": 0.549187570810318, "sibling_qid": "", "sibling_text": "draw the turning gear circuit diagram and explain the starter power side supply isolator and fuses mcb fwd and rev contactors rev has two phases crossed overload relay motor control side stop plus fwd rev push buttons feeding the two coils", "sibling_family": "", "via": "answer_title", "answer_title": "Draw the turning gear circuit diagram and explain the starter.", "cross_family": false } ] }, { "qid": "KOC-2025-12-1677-Q004", "text": "3 point starter drawing and working", "family": "Electrical - Motors & Starters", "subtopic": "DC Motor Three-Point Starter", "tid": "KOC-2025-12-1677", "tray": "new", "candidates": [ { "answer_id": "STR-DEC-A-001", "score": 0.6405251622200012, "sibling_score": 0.6405251622200012, "answer_score": null, "sibling_qid": "KOC-2026-02-1698-Q002", "sibling_text": "draw 3 pt starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "SDST-A-001", "score": 0.5994580984115601, "sibling_score": 0.5994580984115601, "answer_score": 0.3537893384695053, "sibling_qid": "KOC-2024-10-1407-Q001", "sibling_text": "draw star delta starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false }, { "answer_id": "STARTER-DEC-B-003", "score": 0.5670912265777588, "sibling_score": 0.5670912265777588, "answer_score": null, "sibling_qid": "KOC-2023-04-1255-Q006", "sibling_text": "dol starter 3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "DOL starter — use, current, range and limits", "cross_family": false } ] }, { "qid": "KOC-2025-12-1677-Q006", "text": "Provision crane tripping", "family": "Electrical - Motors & Starters", "subtopic": "Windlass / Crane Motor", "tid": "KOC-2025-12-1677", "tray": "review", "candidates": [ { "answer_id": "WCM-P02-001", "score": 0.6531373858451843, "sibling_score": 0.6531373858451843, "answer_score": 0.44634198546409604, "sibling_qid": "KOL-2024-12-2752-Q004", "sibling_text": "deck crane trips", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Safeties and trips on ship's cranes (deck, cargo, provision, engine-room)", "cross_family": false }, { "answer_id": "CRANE-ER-006", "score": 0.6306647658348083, "sibling_score": 0.6306647658348083, "answer_score": 0.4277201473712921, "sibling_qid": "KOC-2026-09-2206-Q015", "sibling_text": "provision crane slipping", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Likely reasons for a provision crane slipping", "cross_family": true }, { "answer_id": "CRANE-EMBRK-003", "score": 0.6245976090431213, "sibling_score": 0.6245976090431213, "answer_score": 0.41487187147140503, "sibling_qid": "KOC-2026-05-2139-Q011", "sibling_text": "provisional crane slipping electrical reason", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Electrical causes of provision / deck crane brake slipping (single-phasing and brake-circuit faults)", "cross_family": false } ] }, { "qid": "KOC-2025-12-1677-Q008", "text": "Gangway motor tripping reason", "family": "Electrical - Motors & Starters", "subtopic": "Motor Not Starting", "tid": "KOC-2025-12-1677", "tray": "review", "candidates": [ { "answer_id": "MNS-009", "score": 0.8198977708816528, "sibling_score": 0.8198977708816528, "answer_score": 0.5009034097194671, "sibling_qid": "KOC-2025-10-1597-Q004", "sibling_text": "gangway motor tripping electrical reasons", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Motor trips on starting, or immediately after — electrical reasons and your checks", "cross_family": false }, { "answer_id": "MNS-004", "score": 0.5195759117603301, "sibling_score": null, "answer_score": 0.5195759117603301, "sibling_qid": "", "sibling_text": "motor starts and then stops again and again frequent start stop cycling on a gangway motor it started so supply fuses and main path are broadly sound that narrows the tree immediately overload relay cutting in on each start and self resetting on cooling is the classic cycling cause", "sibling_family": "", "via": "answer_title", "answer_title": "Motor starts and then stops, again and again — frequent start/stop cycling on a gangway motor", "cross_family": false }, { "answer_id": "AUX-CRANE-005", "score": 0.4839360535144806, "sibling_score": null, "answer_score": 0.4839360535144806, "sibling_qid": "", "sibling_text": "causes of deck crane trips and how to investigate and repair deck crane faults protection trips overload load exceeds swl at radius motor thermal overcurrent hydraulic over pressure or low level oil over temperature limit switch reached emergency stop supply control faults low or lost control voltage phase failure imbalance blown fuse dropped out contactor brake fault", "sibling_family": "", "via": "answer_title", "answer_title": "Causes of deck crane trips, and how to investigate and repair deck crane faults", "cross_family": false } ] }, { "qid": "KOC-2025-12-1678-Q003", "text": "Dc gen parlleling", "family": "Electrical - Generator & Alternator", "subtopic": "Synchronization", "tid": "KOC-2025-12-1678", "tray": "new", "candidates": [ { "answer_id": "SYNC-C-001", "score": 0.5871405005455017, "sibling_score": 0.5871405005455017, "answer_score": 0.33128841519355773, "sibling_qid": "KOL-2022-08-2599-Q001", "sibling_text": "generator paralleling", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Paralleling generators — procedure, conditions and practical checks", "cross_family": false }, { "answer_id": "LS-IMB-A-001", "score": 0.5529748201370239, "sibling_score": 0.5529748201370239, "answer_score": null, "sibling_qid": "KOC-2024-09-1397-Q003", "sibling_text": "generator kw same but i different while parallel oprn procedure to correct", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Two paralleled generators sharing unequal load — cause and correction", "cross_family": false }, { "answer_id": "GEN-LSI-B-001", "score": 0.539208710193634, "sibling_score": 0.539208710193634, "answer_score": null, "sibling_qid": "KOL-2019-05-2292-Q004", "sibling_text": "d kw same pf and current diff for 2 dgs running in parallel reason", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01. Two alternators in parallel — same kW but different current and power factor: cause and correction", "cross_family": false } ] }, { "qid": "KOC-2025-12-1678-Q005", "text": "How to order a motor, frame number", "family": "Electrical - Motors & Starters", "subtopic": "Frame Number", "tid": "KOC-2025-12-1678", "tray": "review", "candidates": [ { "answer_id": "ELECTRICAL-M-A-01", "score": 0.7133262753486633, "sibling_score": 0.7133262753486633, "answer_score": 0.5430663019418717, "sibling_qid": "MUM-2026-01-1850-Q006", "sibling_text": "frame number of motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Motor Frame Number", "cross_family": false }, { "answer_id": "BRG-NOM-001", "score": 0.6843054294586182, "sibling_score": 0.6843054294586182, "answer_score": 0.36323634088039397, "sibling_qid": "MUM-2026-09-3871-Q005", "sibling_text": "how to order motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Bearing Numbers, Suffixes and What to State When Ordering", "cross_family": false }, { "answer_id": "SGM-ELEC-002", "score": 0.41268351823091504, "sibling_score": null, "answer_score": 0.41268351823091504, "sibling_qid": "", "sibling_text": "what type of motor is the steering gear motor how does it differ from other engine room motors and how do you order one three phase squirrel cage induction motor duty rating and designation per the approved nameplate maker generously rated with high starting and pull out stall torque no overload trip overload alarm only solas ii 1 reg 30 must tolerate overload and stall without being disconnected ", "sibling_family": "", "via": "answer_title", "answer_title": "What type of motor is the steering gear motor, how does it differ from other engine-room motors, and how do you order one?", "cross_family": false } ] }, { "qid": "KOC-2025-12-1681-Q001", "text": "Draw and explain 3 point starter for Dc Motorand cross", "family": "Electrical - Motors & Starters", "subtopic": "DC Motor Three-Point Starter", "tid": "KOC-2025-12-1681", "tray": "review", "candidates": [ { "answer_id": "SDST-A-001", "score": 0.7632425427436829, "sibling_score": 0.7632425427436829, "answer_score": 0.5285074084997177, "sibling_qid": "KOC-2026-05-2140-Q008", "sibling_text": "draw and explain 3 point starter for dc motor and star delta", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false }, { "answer_id": "STR-DEC-A-001", "score": 0.6827109456062317, "sibling_score": 0.6827109456062317, "answer_score": null, "sibling_qid": "KOC-2023-05-1257-Q008", "sibling_text": "what are the type of ac starters how will you control starting in dc motor three point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "TG-MOTOR-005", "score": 0.54918752014637, "sibling_score": null, "answer_score": 0.54918752014637, "sibling_qid": "", "sibling_text": "draw the turning gear circuit diagram and explain the starter power side supply isolator and fuses mcb fwd and rev contactors rev has two phases crossed overload relay motor control side stop plus fwd rev push buttons feeding the two coils", "sibling_family": "", "via": "answer_title", "answer_title": "Draw the turning gear circuit diagram and explain the starter.", "cross_family": false } ] }, { "qid": "KOC-2025-12-1979-Q004", "text": "How you'll order engine room crane wire?", "family": "Auxiliary Equipment", "subtopic": "Shackle / Wire Rope", "tid": "KOC-2025-12-1979", "tray": "review", "candidates": [ { "answer_id": "AUX-CRANE-003", "score": 0.6932045817375183, "sibling_score": 0.6932045817375183, "answer_score": null, "sibling_qid": "KOC-2022-07-0966-Q020", "sibling_text": "crane checks 19 how will you order crane wire 20 before changing crane wire what will you check for certificate", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Routine checks, inspections, maintenance and risk-assessment of cranes, cargo gear, lifting gear and wires", "cross_family": false }, { "answer_id": "CABLE-INS-C-001", "score": 0.6297199130058289, "sibling_score": 0.6297199130058289, "answer_score": null, "sibling_qid": "MUM-2025-09-2427-Q003", "sibling_text": "how to order elevator cable", "sibling_family": "", "via": "sibling", "answer_title": "Ordering & selecting a cable; what decides current-carrying capacity", "cross_family": false }, { "answer_id": "CRANE-ER-008", "score": 0.6231277585029602, "sibling_score": 0.6231277585029602, "answer_score": null, "sibling_qid": "MUM-2026-05-3139-Q005", "sibling_text": "engine room crane hook material", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "ER crane hook: material & safety considerations", "cross_family": false } ] }, { "qid": "KOC-2025-12-1979-Q005", "text": "How you'll do the load test of the gangway?", "family": "Auxiliary Equipment", "subtopic": "Dynamic Load Test", "tid": "KOC-2025-12-1979", "tray": "new", "candidates": [ { "answer_id": "BDC-P04-03", "score": 0.5354233384132385, "sibling_score": 0.5354233384132385, "answer_score": null, "sibling_qid": "MUM-2022-09-1355-Q004", "sibling_text": "load test manually", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "Battery load test on board — preparation, deciding the load, and reading the result", "cross_family": true }, { "answer_id": "LBT-TEST-B-001", "score": 0.5116758346557617, "sibling_score": 0.5116758346557617, "answer_score": null, "sibling_qid": "KOC-2026-05-0044-Q008", "sibling_text": "internal how to do load test of lifeboat", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat/davit load-test proof loads and test conditions", "cross_family": true }, { "answer_id": "EMG-DG-P04-005", "score": 0.48394495248794556, "sibling_score": 0.48394495248794556, "answer_score": null, "sibling_qid": "KOC-2025-11-1625-Q007", "sibling_text": "emcy gen load test procedure how many tie breakers location", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Interlocks, paralleling restriction, tie breakers & main-bus connection", "cross_family": true } ] }, { "qid": "KOC-2025-12-1980-Q005", "text": "Con rod inspection", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Connecting Rod & Bolts", "tid": "KOC-2025-12-1980", "tray": "review", "candidates": [ { "answer_id": "CRB-001", "score": 0.8030372262001038, "sibling_score": 0.8030372262001038, "answer_score": 0.46734599173068997, "sibling_qid": "MUM-2026-03-2951-Q008", "sibling_text": "checks on con rod", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What checks are carried out on the connecting rod at decarbonisation? Explain the ovality and trueness checks — how many readings, at which positions, with what instrument, and the permissible limit.", "cross_family": false }, { "answer_id": "AECR-651-001", "score": 0.7757136821746826, "sibling_score": 0.7757136821746826, "answer_score": 0.47798825800418854, "sibling_qid": "MUM-2024-02-1074-Q005", "sibling_text": "checks on con rod in ae", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What checks do you carry out on the connecting rod of an AE / DG — inspection, overhaul checks and the trueness check?", "cross_family": false }, { "answer_id": "AE-CRP-004", "score": 0.7306944727897644, "sibling_score": 0.7306944727897644, "answer_score": 0.4981093943119049, "sibling_qid": "CHE-2026-04-0501-Q005", "sibling_text": "ae con rod inspection", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE connecting-rod inspection — ovality, trueness, serrations, action if out of limit", "cross_family": true } ] }, { "qid": "KOC-2025-12-1981-Q003", "text": "■now a days low sulphur is being used, so tell me what maintenance to be carried out in liner?", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "KOC-2025-12-1981", "tray": "new", "candidates": [ { "answer_id": "CYL-LINER-P03-007", "score": 0.6383536458015442, "sibling_score": 0.6383536458015442, "answer_score": null, "sibling_qid": "MUM-2026-05-3291-Q012", "sibling_text": "m e liner overhaul procedure before and after checks in liner", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Cylinder liner checks at overhaul, decarb and under-piston inspection", "cross_family": false }, { "answer_id": "CYL-LINER-P03-008", "score": 0.6359570622444153, "sibling_score": 0.6359570622444153, "answer_score": null, "sibling_qid": "KOL-2022-06-3543-Q001", "sibling_text": "which type of engine done what are the major overhauled done on board how to remove liner what is the precautions to be taken during liner removal", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Main-engine cylinder liner removal — full procedure, the lifting tool, and precautions", "cross_family": false }, { "answer_id": "CYL-LINER-P03-006", "score": 0.6273631453514099, "sibling_score": 0.6273631453514099, "answer_score": 0.4680569589138031, "sibling_qid": "MUM-2026-02-1270-Q003", "sibling_text": "liner replacement criteria during overhauling", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Fitting a new cylinder liner — checks and precautions during renewal and installation", "cross_family": false } ] }, { "qid": "KOC-2025-12-1981-Q006", "text": "■Timing gear tooth worn out? Limit for tooth wear? What is the limit for fuel ignition delay?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Camshaft Drive / Gear Arrangement", "tid": "KOC-2025-12-1981", "tray": "new", "candidates": [ { "answer_id": "FQCC-583-B-006", "score": 0.5752496123313904, "sibling_score": 0.5752496123313904, "answer_score": 0.46581143140792847, "sibling_qid": "KOL-2021-11-1645-Q004", "sibling_text": "wht is ignition delay and and reason 5", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Ignition delay — the gap between injection and combustion, and its reasons", "cross_family": false }, { "answer_id": "FCL-P03-002", "score": 0.541487991809845, "sibling_score": 0.541487991809845, "answer_score": null, "sibling_qid": "KOL-2022-11-1717-Q002", "sibling_text": "man b w fuel timing", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "MAN B&W / MC-C / MCC fuel pump timing and lead", "cross_family": false }, { "answer_id": "PCD-P05-02", "score": 0.5370359420776367, "sibling_score": 0.5370359420776367, "answer_score": null, "sibling_qid": "KOL-2026-03-2045-Q006", "sibling_text": "timing gear working and function", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Screw pump — construction, working, types, drive arrangement, clearances, why preferred over gear", "cross_family": false } ] }, { "qid": "KOC-2025-12-1982-Q004", "text": "Diff between improved high lift and high lift", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2025-12-1982", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.7892778515815735, "sibling_score": 0.7892778515815735, "answer_score": null, "sibling_qid": "KOL-2026-01-3900-Q004", "sibling_text": "diff between improved high lift and high lift", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-003", "score": 0.7589152455329895, "sibling_score": 0.7589152455329895, "answer_score": null, "sibling_qid": "KOL-2026-03-2049-Q008", "sibling_text": "difference between high lift and improved high lift", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "The accumulation test and the safety valve — required lift, how lift and capacity are verified, and why accumulation must stay inside the limit", "cross_family": false }, { "answer_id": "TURBO-CS-P02-007", "score": 0.3255982965230942, "sibling_score": null, "answer_score": 0.3255982965230942, "sibling_qid": "", "sibling_text": "turbocharger advancements higher single stage pressure ratio and efficiency from improved aerodynamics and materials supports high bmep low emission engines two stage turbocharging lp hp in series for very high boost enables miller cycle and nox reduction", "sibling_family": "", "via": "answer_title", "answer_title": "Turbocharger advancements", "cross_family": false } ] }, { "qid": "KOC-2025-12-1982-Q005", "text": "Check on safety valve during overhaul", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2025-12-1982", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P01-001", "score": 0.8466326594352722, "sibling_score": 0.8466326594352722, "answer_score": null, "sibling_qid": "KOL-2026-01-3900-Q005", "sibling_text": "check on safety valve during overhaul", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.7075441479682922, "sibling_score": 0.7075441479682922, "answer_score": null, "sibling_qid": "KOC-2026-02-1106-Q007", "sibling_text": "improved high lift safety valve overhaul and checks", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-003", "score": 0.6857283711433411, "sibling_score": 0.6857283711433411, "answer_score": null, "sibling_qid": "MUM-2026-02-2575-Q001", "sibling_text": "can we test boiler safety valve out of place", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "The accumulation test and the safety valve — required lift, how lift and capacity are verified, and why accumulation must stay inside the limit", "cross_family": false } ] }, { "qid": "KOC-2025-12-1983-Q003", "text": "■Safety valve setting procedure. i started answering then he asked how does gagging tool look like( i have never seen it so could not answer). Safety valve setting procedure suna hi nahi fir usne", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2025-12-1983", "tray": "review", "candidates": [ { "answer_id": "ECON-EGB-004", "score": 0.7519979476928711, "sibling_score": 0.7519979476928711, "answer_score": 0.494548225402832, "sibling_qid": "CHE-2026-05-0601-Q010", "sibling_text": "safety valve setting procedure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Safety-valve setting after overhaul & why set higher than the boiler", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.7504071593284607, "sibling_score": 0.7504071593284607, "answer_score": null, "sibling_qid": "KOC-2026-05-2142-Q008", "sibling_text": "safety valve setting in front of surveyor", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.7184383273124695, "sibling_score": 0.7184383273124695, "answer_score": null, "sibling_qid": "MUM-2026-02-1255-Q006", "sibling_text": "setting of safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false } ] }, { "qid": "KOC-2025-12-1984-Q003", "text": "■Safety valve setting procedure. i started answering then he asked how does gagging tool look like( i have never seen it so could not answer). Safety valve setting procedure suna hi nahi fir usne", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2025-12-1984", "tray": "review", "candidates": [ { "answer_id": "ECON-EGB-004", "score": 0.7519980072975159, "sibling_score": 0.7519980072975159, "answer_score": 0.4945481240749359, "sibling_qid": "CHE-2026-05-0601-Q010", "sibling_text": "safety valve setting procedure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Safety-valve setting after overhaul & why set higher than the boiler", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.7504072189331055, "sibling_score": 0.7504072189331055, "answer_score": null, "sibling_qid": "KOC-2026-05-2142-Q008", "sibling_text": "safety valve setting in front of surveyor", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.7184383869171143, "sibling_score": 0.7184383869171143, "answer_score": null, "sibling_qid": "MUM-2026-02-1255-Q006", "sibling_text": "setting of safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false } ] }, { "qid": "KOC-2025-12-1985-Q002", "text": "Crosshead bearing survey", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Crosshead Bearing", "tid": "KOC-2025-12-1985", "tray": "review", "candidates": [ { "answer_id": "XHD-BRG-C-001", "score": 0.8219475746154785, "sibling_score": 0.8219475746154785, "answer_score": null, "sibling_qid": "KOC-2021-11-1768-Q006", "sibling_text": "cross head bearing survey", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "A. Present the crosshead bottom shell for survey, piston in place", "cross_family": false }, { "answer_id": "CXH-BRG-FINAL-1-001", "score": 0.8201485276222229, "sibling_score": 0.8201485276222229, "answer_score": null, "sibling_qid": "KOL-2016-11-1838-Q004", "sibling_text": "cross head bearing survey", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead bearing survey: open-up, removal & inspection", "cross_family": false }, { "answer_id": "XHD-BRG-B-001", "score": 0.8155507445335388, "sibling_score": 0.8155507445335388, "answer_score": 0.48824233710765835, "sibling_qid": "KOL-2019-07-3259-Q003", "sibling_text": "crosshead bearing survey", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Preparing the crosshead bottom-end bearing and presenting it to the surveyor", "cross_family": false } ] }, { "qid": "KOC-2025-12-1986-Q001", "text": "Crosshead bearing overhaul", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Crosshead Bearing", "tid": "KOC-2025-12-1986", "tray": "review", "candidates": [ { "answer_id": "XHD-BRG-C-002", "score": 0.8449437022209167, "sibling_score": 0.8449437022209167, "answer_score": 0.5965570449829102, "sibling_qid": "MUM-2026-07-3802-Q006", "sibling_text": "crosshead bearing overhaul", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "B. Crosshead bearing overhaul and removal: exact steps, tackle, withdrawing the pin", "cross_family": false }, { "answer_id": "CXH-BRG-FINAL-1-001", "score": 0.843424379825592, "sibling_score": 0.843424379825592, "answer_score": null, "sibling_qid": "MUM-2026-03-2930-Q007", "sibling_text": "crosshead bearing overhaul", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead bearing survey: open-up, removal & inspection", "cross_family": false }, { "answer_id": "XHD-BRG-B-002", "score": 0.8343190550804138, "sibling_score": 0.8343190550804138, "answer_score": null, "sibling_qid": "KOL-2022-02-3516-Q005", "sibling_text": "crosshead bearing lower half overhaul", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Removing and lowering the crosshead bottom shell — the critical safety measure", "cross_family": false } ] }, { "qid": "KOC-2025-12-2084-Q015", "text": "how is freefall lifeboat secured in ship", "family": "SOLAS - LSA & Lifeboats", "subtopic": "LSA Code", "tid": "KOC-2025-12-2084", "tray": "review", "candidates": [ { "answer_id": "DRG-583-A-011", "score": 0.6967930197715759, "sibling_score": 0.6967930197715759, "answer_score": null, "sibling_qid": "KOL-2022-07-0653-Q002", "sibling_text": "how lifeboat secure in main deck", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Securing the boat for sea, hoisting and recovery, and fall preventer devices", "cross_family": false }, { "answer_id": "LRHR-B-002", "score": 0.6887206435203552, "sibling_score": 0.6887206435203552, "answer_score": null, "sibling_qid": "KOC-2025-02-0540-Q006", "sibling_text": "how life raft secured on deck also figure", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "How is the liferaft stowed and secured on deck? Draw the arrangement.", "cross_family": false }, { "answer_id": "DRG-583-A-006", "score": 0.6792183518409729, "sibling_score": 0.6792183518409729, "answer_score": 0.558303838968277, "sibling_qid": "KOC-2022-12-0120-Q007", "sibling_text": "free fall lifeboat relase mechanism name how it s locked in place", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Free-fall lifeboat: release mechanism and how the boat is held on the skid", "cross_family": false } ] }, { "qid": "KOC-2025-12-2084-Q016", "text": "How many RescueQuoits are onboard a lifeboat", "family": "SOLAS - LSA & Lifeboats", "subtopic": "LSA Code", "tid": "KOC-2025-12-2084", "tray": "review", "candidates": [ { "answer_id": "LRHR-A-004", "score": 0.69635409116745, "sibling_score": 0.69635409116745, "answer_score": null, "sibling_qid": "KOL-2025-12-1139-Q005", "sibling_text": "as per solas life raft equipment only 4 qstn", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Liferaft equipment as per SOLAS — the A pack and the B pack", "cross_family": false }, { "answer_id": "LRHR-A-001", "score": 0.6815283894538879, "sibling_score": 0.6815283894538879, "answer_score": null, "sibling_qid": "MUM-2026-05-3086-Q004", "sibling_text": "number of life raft", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "SOLAS requirement for liferafts on a cargo ship — number and total capacity", "cross_family": false }, { "answer_id": "LSA-LB-A-002", "score": 0.6660642027854919, "sibling_score": 0.6660642027854919, "answer_score": null, "sibling_qid": "KOC-2025-01-0519-Q011", "sibling_text": "types lifeboat onboard", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Types of lifeboat — and which type on your ship", "cross_family": false } ] }, { "qid": "KOC-2026-01-0780-Q006", "text": "How ballast line is equipped onboard and how to rectify a hole on the ballast line", "family": "Workshop & Welding", "subtopic": "Pipe Fabrication", "tid": "KOC-2026-01-0780", "tray": "new", "candidates": [ { "answer_id": "PCD-P02-05", "score": 0.5492334365844727, "sibling_score": 0.5492334365844727, "answer_score": null, "sibling_qid": "MUM-2025-08-2824-Q005", "sibling_text": "how will you repair sleeve of ballast pump if damaged and spare not available onboard i told with cold repair either by metal putty or belzona putty result repeat", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Centrifugal / sea-water pump shaft repair — worn shaft, no spare", "cross_family": true }, { "answer_id": "CEM-BOX-002", "score": 0.5257024168968201, "sibling_score": 0.5257024168968201, "answer_score": 0.4395816415548324, "sibling_qid": "MUM-2023-03-0094-Q006", "sibling_text": "hole in sw line after low seachest how will you approach", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Hole or leak in the sea chest / seawater line—how do you approach it?", "cross_family": false }, { "answer_id": "PHL-001", "score": 0.5241938829421997, "sibling_score": 0.5241938829421997, "answer_score": 0.45982609391212464, "sibling_qid": "MUM-2026-02-2552-Q005", "sibling_text": "found hole in bilge suction main line after isolation and checks how to find out exact local of hole internet connection gone in between oral later i joined internal directly told fun 4b repeat and fun 6 pass", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "There is a hole in a line — bilge suction main, sea-water line, starting-air line or steam line: your action as 2/E, and how you find the exact location", "cross_family": true } ] }, { "qid": "KOC-2026-01-0780-Q012", "text": "ISM code , why it was developed", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOC-2026-01-0780", "tray": "new", "candidates": [ { "answer_id": "ISM-ELEM-001", "score": 0.5872119069099426, "sibling_score": 0.5872119069099426, "answer_score": null, "sibling_qid": "MUM-2025-11-0579-Q001", "sibling_text": "ism code objective", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "ISM-ELEM-002", "score": 0.562699019908905, "sibling_score": 0.562699019908905, "answer_score": 0.3521585166454315, "sibling_qid": "KOC-2026-03-0885-Q010", "sibling_text": "explain ism code", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the ISM Code?", "cross_family": false }, { "answer_id": "ISM-AUD-P02-002", "score": 0.38676143586635586, "sibling_score": null, "answer_score": 0.38676143586635586, "sibling_qid": "", "sibling_text": "ism code what it is purpose objectives and structure full name carries both limbs safe operation of ships and pollution prevention never drop the pollution half adopted by resolution a 741 18 in 1993 given legal force through solas chapter ix in force 1 july 1998 phase 1", "sibling_family": "", "via": "answer_title", "answer_title": "ISM Code — what it is, purpose, objectives and structure", "cross_family": false } ] }, { "qid": "KOC-2026-01-0781-Q004", "text": "■orb code c explain", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "KOC-2026-01-0781", "tray": "new", "candidates": [ { "answer_id": "OWS-ORB-006", "score": 0.5839923024177551, "sibling_score": 0.5839923024177551, "answer_score": null, "sibling_qid": "CHE-2026-05-0634-Q009", "sibling_text": "orb all codes", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "6. 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Tankers", "via": "sibling", "answer_title": "Ballast-tank construction", "cross_family": false } ] }, { "qid": "KOC-2026-01-0793-Q001", "text": "Control of documents", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOC-2026-01-0793", "tray": "new", "candidates": [ { "answer_id": "ISM-SMCDOC-A-001", "score": 0.5504650473594666, "sibling_score": 0.5504650473594666, "answer_score": null, "sibling_qid": "CHE-2025-08-0020-Q008", "sibling_text": "ism documents", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM certificates: the DOC and SMC family", "cross_family": false }, { "answer_id": "ISM-2E-C-001", "score": 0.5503390431404114, "sibling_score": 0.5503390431404114, "answer_score": null, "sibling_qid": "KOC-2024-09-0408-Q010", "sibling_text": "ism documents", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM audit / survey preparation as Second Engineer — beyond the paperwork", "cross_family": false }, { "answer_id": "ISM-AUD-P02-004", "score": 0.5498417019844055, "sibling_score": 0.5498417019844055, "answer_score": 0.30189643502235414, "sibling_qid": "CHE-2026-05-0540-Q006", "sibling_text": "ism documents", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "SMS contents, manuals, documents and drill records onboard", "cross_family": false } ] }, { "qid": "KOC-2026-01-0793-Q002", "text": "Explain ism part b chapters", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOC-2026-01-0793", "tray": "new", "candidates": [ { "answer_id": "ISM-ELEM-003", "score": 0.5974839329719543, "sibling_score": 0.5974839329719543, "answer_score": 0.39522312581539154, "sibling_qid": "KOC-2026-08-2149-Q007", "sibling_text": "ism chapters", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": false }, { "answer_id": "ISM-AUD-P02-002", "score": 0.5515307784080505, "sibling_score": 0.5515307784080505, "answer_score": null, "sibling_qid": "KOL-2019-02-3209-Q005", "sibling_text": "ism chapters specifically how many numbers", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM Code — what it is, purpose, objectives and structure", "cross_family": false }, { "answer_id": "ISM-ELEM-002", "score": 0.4897494316101074, "sibling_score": 0.4897494316101074, "answer_score": null, "sibling_qid": "KOC-2026-05-2138-Q008", "sibling_text": "ism codes describe all the codes in part a and part b", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the ISM Code?", "cross_family": false } ] }, { "qid": "KOC-2026-01-0793-Q006", "text": "WHAT all things RSO is not authorised to do", "family": "Surveys - Statutory", "subtopic": "PSC / Flag / RO / CIC / MoU", "tid": "KOC-2026-01-0793", "tray": "review", "candidates": [ { "answer_id": "IACS-324-006", "score": 0.676253616809845, "sibling_score": 0.676253616809845, "answer_score": 0.3993810907006264, "sibling_qid": "KOC-2023-12-0255-Q003", "sibling_text": "what all actions on sro cannot perform", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "6. What actions or responsibilities cannot be assigned to an RO by the flag State?", "cross_family": false }, { "answer_id": "PSC-RO-P02-010", "score": 0.6000675559043884, "sibling_score": 0.6000675559043884, "answer_score": 0.4329896032810211, "sibling_qid": "KOC-2024-12-0489-Q003", "sibling_text": "what duties cannot be assigned to ro", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What are the duties, responsibilities and limitations of an RO?", "cross_family": false }, { "answer_id": "SVY-SCOPE-001", "score": 0.4843248128890991, "sibling_score": 0.4843248128890991, "answer_score": 0.28969536572694776, "sibling_qid": "MUM-2025-12-0627-Q007", "sibling_text": "surveys ce can not carry out", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Which statutory or Class surveys can a Chief Engineer not carry out alone?", "cross_family": false } ] }, { "qid": "KOC-2026-01-0794-Q003", "text": "MLC titles explain title 2", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOC-2026-01-0794", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.663385808467865, "sibling_score": 0.663385808467865, "answer_score": 0.23920592963695525, "sibling_qid": "KOC-2026-05-2135-Q011", "sibling_text": "mlc titles explain title 1 explain dmlc part 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "ISM-2E-A-001", "score": 0.4379522204399109, "sibling_score": 0.4379522204399109, "answer_score": null, "sibling_qid": "CHE-2026-04-0163-Q018", "sibling_text": "role of 2e in mlc and ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Roles, duties and responsibilities of a Second Engineer under ISM/SMS", "cross_family": true }, { "answer_id": "SOLAS-CH-003", "score": 0.4336843490600586, "sibling_score": 0.4336843490600586, "answer_score": null, "sibling_qid": "KOC-2025-05-2065-Q008", "sibling_text": "explain solas chapter 2 of 2", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS Chapter II-2 - fire protection, detection and extinction", "cross_family": true } ] }, { "qid": "KOC-2026-01-0794-Q004", "text": "What is DMLC part 1 and part 2", "family": "MLC", "subtopic": "MLC / DMLC / Work-Rest", "tid": "KOC-2026-01-0794", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.6666281819343567, "sibling_score": 0.6666281819343567, "answer_score": 0.3037284940481186, "sibling_qid": "MUM-2026-05-3314-Q007", "sibling_text": "dmlc part 1 and part 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "ISM-ELEM-003", "score": 0.22939933985471725, "sibling_score": null, "answer_score": 0.22939933985471725, "sibling_qid": "", "sibling_text": "elements chapters structure of the ism code part a implementation the 12 elements 1 general 1 1 definitions 1 2 objectives 1 3 application 1 4 functional requirements for an sms", "sibling_family": "", "via": "answer_title", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": false }, { "answer_id": "GMCM-583-A-002", "score": 0.20783035457134247, "sibling_score": null, "answer_score": 0.20783035457134247, "sibling_qid": "", "sibling_text": "02 the multimeter construction internal circuit and how one instrument reads several different parameters one movement or one adc plus switched signal conditioning networks that is the whole idea dc volts series multipliers ac volts rectifier plus multipliers", "sibling_family": "", "via": "answer_title", "answer_title": "02. The multimeter — construction, internal circuit, and how one instrument reads several different parameters", "cross_family": false } ] }, { "qid": "KOC-2026-01-0794-Q011", "text": "Draw rudder carrier bearing material of thrust ring Electrical", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOC-2026-01-0794", "tray": "review", "candidates": [ { "answer_id": "TRS-002", "score": 0.6553284525871277, "sibling_score": 0.6553284525871277, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "PRE-TEN-001", "score": 0.6332387924194336, "sibling_score": 0.6332387924194336, "answer_score": null, "sibling_qid": "MUM-2026-06-3504-Q007", "sibling_text": "rudder carrier bearing removal procedure", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Pre-stressing and pre-tensioning in main-engine bolting", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.6046167612075806, "sibling_score": 0.6046167612075806, "answer_score": null, "sibling_qid": "CHE-2026-02-0110-Q006", "sibling_text": "how rudder weight is carried key ans i said carrier bearing how it carrying explain", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false } ] }, { "qid": "KOC-2026-01-0794-Q014", "text": "Draw 3 point starter of DC motor", "family": "Electrical - Motors & Starters", "subtopic": "DC Motor Three-Point Starter", "tid": "KOC-2026-01-0794", "tray": "review", "candidates": [ { "answer_id": "SDST-A-001", "score": 0.7799569368362427, "sibling_score": 0.7799569368362427, "answer_score": 0.5271608114242553, "sibling_qid": "KOC-2026-05-2140-Q008", "sibling_text": "draw and explain 3 point starter for dc motor and star delta", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false }, { "answer_id": "TG-MOTOR-005", "score": 0.529347163438797, "sibling_score": null, "answer_score": 0.529347163438797, "sibling_qid": "", "sibling_text": "draw the turning gear circuit diagram and explain the starter power side supply isolator and fuses mcb fwd and rev contactors rev has two phases crossed overload relay motor control side stop plus fwd rev push buttons feeding the two coils", "sibling_family": "", "via": "answer_title", "answer_title": "Draw the turning gear circuit diagram and explain the starter.", "cross_family": false }, { "answer_id": "SDC-005", "score": 0.5165840029716492, "sibling_score": null, "answer_score": 0.5165840029716492, "sibling_qid": "", "sibling_text": "draw the delta connection three windings joined end to start in a closed loop a triangle line leads r y b taken from the three corners junctions", "sibling_family": "", "via": "answer_title", "answer_title": "Draw the delta connection", "cross_family": false } ] }, { "qid": "KOC-2026-01-0794-Q017", "text": "Gangway motor slipping electrical reasons( he is not accepting single phasing) Internal:", "family": "Electrical - Motors & Starters", "subtopic": "Single Phasing", "tid": "KOC-2026-01-0794", "tray": "review", "candidates": [ { "answer_id": "MNS-006", "score": 0.7213321924209595, "sibling_score": 0.7213321924209595, "answer_score": null, "sibling_qid": "KOC-2026-08-2123-Q002", "sibling_text": "gangway motor slipping reasons", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Gangway motor slipping — the brake is not holding", "cross_family": false }, { "answer_id": "MNS-009", "score": 0.716702938079834, "sibling_score": 0.716702938079834, "answer_score": null, "sibling_qid": "KOC-2025-10-1597-Q004", "sibling_text": "gangway motor tripping electrical reasons", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Motor trips on starting, or immediately after — electrical reasons and your checks", "cross_family": false }, { "answer_id": "MNS-004", "score": 0.7117236256599426, "sibling_score": 0.7117236256599426, "answer_score": null, "sibling_qid": "KOC-2024-04-1344-Q003", "sibling_text": "gangway motor frequent starting stopping electrical reasons", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Motor starts and then stops, again and again — frequent start/stop cycling on a gangway motor", "cross_family": false } ] }, { "qid": "KOC-2026-01-1090-Q003", "text": "Crosshead bearing clearances", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Crosshead Bearing", "tid": "KOC-2026-01-1090", "tray": "review", "candidates": [ { "answer_id": "CXH-BRG-FINAL-1-006", "score": 0.8136247992515564, "sibling_score": 0.8136247992515564, "answer_score": 0.6024003207683563, "sibling_qid": "MUM-2026-06-3472-Q009", "sibling_text": "crosshead bearing clearance lots of cross", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead & guide-shoe clearances: how, where, how much, piston position & why", "cross_family": false }, { "answer_id": "XHD-BRG-C-003", "score": 0.8071362972259521, "sibling_score": 0.8071362972259521, "answer_score": null, "sibling_qid": "KOL-2025-10-3867-Q002", "sibling_text": "crosshead bearing clearances crosshead clearances why", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "C. Crosshead and guide-shoe clearances: how many, how measured, piston position and why", "cross_family": false }, { "answer_id": "BCL-592-002", "score": 0.7725067734718323, "sibling_score": 0.7725067734718323, "answer_score": null, "sibling_qid": "KOL-2026-01-4081-Q010", "sibling_text": "main bearing clearance and crosshead bearing clearance", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Take me through all the clearances you measure on the main engine and how you take each one.", "cross_family": false } ] }, { "qid": "KOC-2026-01-1091-Q002", "text": "forces of bedplate", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Bedplate / A-Frame", "tid": "KOC-2026-01-1091", "tray": "new", "candidates": [ { "answer_id": "FWFB-P02-007", "score": 0.5582099556922913, "sibling_score": 0.5582099556922913, "answer_score": null, "sibling_qid": "MUM-2026-03-2952-Q007", "sibling_text": "what type of bedplate", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Transverse and longitudinal girders: arrangement and purpose", "cross_family": false }, { "answer_id": "TR-TB-PA-001", "score": 0.5185229182243347, "sibling_score": 0.5185229182243347, "answer_score": null, "sibling_qid": "KOL-2024-04-3686-Q003", "sibling_text": "how firing forces transmitted tie rods arrangement how fitted how crankshaft rests on bedplate how bed plate girders fitted", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Function of tie rods and the firing-load path", "cross_family": false }, { "answer_id": "BED-CHOCK-001", "score": 0.5149588584899902, "sibling_score": 0.5149588584899902, "answer_score": null, "sibling_qid": "MUM-2023-08-0952-Q004", "sibling_text": "how to fix bed plate on ship", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "How is the main-engine bedplate fixed to the ship's structure?", "cross_family": false } ] }, { "qid": "KOC-2026-01-1091-Q005", "text": "Safety devices in boiler", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2026-01-1091", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-008", "score": 0.8329111933708191, "sibling_score": 0.8329111933708191, "answer_score": null, "sibling_qid": "KOC-2026-05-0009-Q004", "sibling_text": "safety devices in boiler", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.7622883915901184, "sibling_score": 0.7622883915901184, "answer_score": null, "sibling_qid": "MUM-2026-05-3281-Q004", "sibling_text": "setting of boiler safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.7553125619888306, "sibling_score": 0.7553125619888306, "answer_score": null, "sibling_qid": "CHE-2026-05-0583-Q002", "sibling_text": "boiler safety valve lifting pressure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOC-2026-01-1092-Q003", "text": "Difference between cross head pin and crank pin", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Crosshead Bearing", "tid": "KOC-2026-01-1092", "tray": "review", "candidates": [ { "answer_id": "XHEAD-303-003", "score": 0.7845340371131897, "sibling_score": 0.7845340371131897, "answer_score": 0.4693138301372528, "sibling_qid": "KOC-2026-05-0003-Q002", "sibling_text": "difference between cross head pin and crank pin", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead pin and bearing design, ovality and diameter checks, modern shell design", "cross_family": false }, { "answer_id": "XHD-BRG-B-003", "score": 0.5901005864143372, "sibling_score": 0.5901005864143372, "answer_score": null, "sibling_qid": "KOL-2022-01-4005-Q002", "sibling_text": "crosshead bearing taken out what all checks to do in crank pin and bottom shell", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Inspecting the crosshead pin and bottom shell once out", "cross_family": false }, { "answer_id": "XHD-BRG-C-004", "score": 0.5889468789100647, "sibling_score": 0.5889468789100647, "answer_score": null, "sibling_qid": "KOL-2026-02-2039-Q005", "sibling_text": "forgot cross by internal lubrication in 2stroke engines why xhd pin of bigger diameter", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "D. Crosshead and guide-shoe lubrication: oil path, the no-load-reversal film problem, MAN vs Sulzer", "cross_family": false } ] }, { "qid": "KOC-2026-01-1092-Q005", "text": "Auxiliary engine performance analysis and how to make sure that the pmax is satisfactory", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE 4-Stroke Theory", "tid": "KOC-2026-01-1092", "tray": "new", "candidates": [ { "answer_id": "AEDEC-291-009", "score": 0.6036438345909119, "sibling_score": 0.6036438345909119, "answer_score": null, "sibling_qid": "KOL-2025-06-3786-Q005", "sibling_text": "load carrying capacity of your aux eng is lower what ovrhaul you will plan as 2e", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "9. Planning overhaul when load-carrying capacity is low", "cross_family": false }, { "answer_id": "AEDEC-291-005", "score": 0.5956063866615295, "sibling_score": 0.5956063866615295, "answer_score": null, "sibling_qid": "KOC-2025-08-1940-Q011", "sibling_text": "explain running in procedure of aux engine", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "5. Running-in, gradual loading, confirming run-in", "cross_family": false }, { "answer_id": "AEOVT-559-003", "score": 0.5789394974708557, "sibling_score": 0.5789394974708557, "answer_score": null, "sibling_qid": "MUM-2026-01-1905-Q001S3", "sibling_text": "over speed of auxiliary engine", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Overspeed of a diesel generator / auxiliary engine — what it is and why it matters", "cross_family": false } ] }, { "qid": "KOC-2026-01-1092-Q006", "text": "Boiler safety valve setting procedure", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2026-01-1092", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-001", "score": 0.856575608253479, "sibling_score": 0.856575608253479, "answer_score": null, "sibling_qid": "KOC-2026-05-0003-Q005", "sibling_text": "boiler safety valve setting procedure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.8239951729774475, "sibling_score": 0.8239951729774475, "answer_score": null, "sibling_qid": "MUM-2026-03-2935-Q013", "sibling_text": "boiler safety valve setting in presence of surveyor after survey", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.8082782626152039, "sibling_score": 0.8082782626152039, "answer_score": null, "sibling_qid": "KOC-2026-05-0034-Q010", "sibling_text": "boiler safety valve types and how safety valve is set complete procedures", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOC-2026-01-1092-Q009", "text": "what is mean by pcd of a flange", "family": "Workshop & Welding", "subtopic": "Pipe Fabrication", "tid": "KOC-2026-01-1092", "tray": "new", "candidates": [ { "answer_id": "ISC-329-003", "score": 0.555857241153717, "sibling_score": 0.555857241153717, "answer_score": 0.41348887234926224, "sibling_qid": "KOL-2022-11-0703-Q005", "sibling_text": "international shore coupling purpose why required how many how it look like dimension since i told him pcd 143mm he told no this is not a normal flange that you are telling me about pcd then i told him thickness then also he not accepted he told me there is something very important that you are missing i don t have any idea", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Draw and describe the international shore connection — its dimensions, material and flange arrangement.", "cross_family": true }, { "answer_id": "PIPEFAB-008", "score": 0.490689218044281, "sibling_score": 0.490689218044281, "answer_score": 0.3672790199518204, "sibling_qid": "KOL-2022-01-4004-Q006", "sibling_text": "difference in different types of flanges onboard", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "What are the different types of flange used on board, and how do they differ?", "cross_family": false }, { "answer_id": "PIPE-MAT-008", "score": 0.48265957832336426, "sibling_score": 0.48265957832336426, "answer_score": 0.34399189352989196, "sibling_qid": "KOL-2019-01-3204-Q005", "sibling_text": "flange difference between high pressure and low pressure pipe", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Identifying HP vs LP, and steam vs water, pipe flanges", "cross_family": false } ] }, { "qid": "KOC-2026-01-1092-Q010", "text": "fuel oil analysis report details", "family": "MARPOL - General & Compliance", "subtopic": "Bunker Sample Storage", "tid": "KOC-2026-01-1092", "tray": "review", "candidates": [ { "answer_id": "NBAB-574-002", "score": 0.8640410304069519, "sibling_score": 0.8640410304069519, "answer_score": 0.521813839673996, "sibling_qid": "KOC-2026-05-0003-Q009", "sibling_text": "fuel oil analysis report details", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Bunker analysis suggests used or burnt lubricating oil — which parameters and tests identify it?", "cross_family": false }, { "answer_id": "BDN-001-001", "score": 0.7373642921447754, "sibling_score": 0.7373642921447754, "answer_score": null, "sibling_qid": "KOL-2018-01-0138-Q004", "sibling_text": "bdn and why fuel oil analysis required 5", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "BDN: what it is and what it must contain", "cross_family": false }, { "answer_id": "FQCC-583-A-005", "score": 0.7333024144172668, "sibling_score": 0.7333024144172668, "answer_score": 0.5998762428760528, "sibling_qid": "CHE-2026-05-0579-Q003", "sibling_text": "ae lo report what all things u will check and in fuel oil content check on which parameter u can find it", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "The bunker / fuel oil analysis report — what is checked and who says so", "cross_family": true } ] }, { "qid": "KOC-2026-01-1092-Q013", "text": "ME lub oil is contaminated with fresh water, actions", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Lube Oil Emulsification", "tid": "KOC-2026-01-1092", "tray": "review", "candidates": [ { "answer_id": "LO-TEST-P02-003", "score": 0.8542317152023315, "sibling_score": 0.8542317152023315, "answer_score": null, "sibling_qid": "KOC-2026-05-0003-Q012", "sibling_text": "me lub oil is contaminated with fresh water actions", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Abnormal LO condition: sump rise, colour, high temperature/pressure, lacquer, deterioration", "cross_family": false }, { "answer_id": "LO-TEST-P02-002", "score": 0.6278238296508789, "sibling_score": 0.6278238296508789, "answer_score": 0.4866789996623993, "sibling_qid": "KOL-2023-04-3606-Q003", "sibling_text": "ae lo crancase contaminated with fuel oil remedy and cause for contamination", "sibling_family": "2-Stroke - 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Magnetic Particle Inspection (MPI / MPT)", "cross_family": true }, { "answer_id": "MNS-012", "score": 0.504294216632843, "sibling_score": 0.504294216632843, "answer_score": null, "sibling_qid": "MUM-2025-08-1156-Q008", "sibling_text": "what is magnetic locking where it happens resons", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Cogging and magnetic locking in an induction motor — what they are, where, and why", "cross_family": true } ] }, { "qid": "KOC-2026-01-1687-Q010", "text": "Bridge equipment and use", "family": "Navigation & Bridge Equipment", "subtopic": "RADAR", "tid": "KOC-2026-01-1687", "tray": "new", "candidates": [ { "answer_id": "LSA-CODE-BF044-002", "score": 0.5884721875190735, "sibling_score": 0.5884721875190735, "answer_score": null, "sibling_qid": "KOL-2022-03-0612-Q005", "sibling_text": "safety equipment on bridge according to lsa", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What life-saving equipment does the LSA Code / SOLAS Chapter III require on or near the bridge?", "cross_family": true }, { "answer_id": "VOLT-SYS-008", "score": 0.5783510208129883, "sibling_score": 0.5783510208129883, "answer_score": null, "sibling_qid": "KOL-2022-07-2582-Q004", "sibling_text": "equipments on bridge supply voltage", "sibling_family": "Electrical - 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AE decarb / overhaul — preparation and full procedure", "cross_family": true }, { "answer_id": "ISM-2E-A-004", "score": 0.5008308291435242, "sibling_score": 0.5008308291435242, "answer_score": 0.24901363402605056, "sibling_qid": "KOC-2022-07-0966-Q018", "sibling_text": "major jobs carried out", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Shipboard jobs, machineries and maintenance areas under the Second Engineer", "cross_family": true }, { "answer_id": "DCB-OVH-008", "score": 0.5003926157951355, "sibling_score": 0.5003926157951355, "answer_score": 0.34518001377582547, "sibling_qid": "KOC-2025-10-1946-Q012", "sibling_text": "major jobs carried out", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Major ME / AE overhaul jobs carried out onboard", "cross_family": true } ] }, { "qid": "KOC-2026-01-1993-Q005", "text": "What is maximum grade of fuel can be used as per ISO 8217:2017(I said RMG380)", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Quality / CCAI", "tid": "KOC-2026-01-1993", "tray": "new", "candidates": [ { "answer_id": "FQCC-583-A-002", "score": 0.6143612861633301, "sibling_score": 0.6143612861633301, "answer_score": null, "sibling_qid": "MUM-2026-05-3258-Q002", "sibling_text": "fuel standard which iso difference between previous fuel grade iso and new one", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "ISO 8217 — the standard, and what changed from 2017 to 2024", "cross_family": false }, { "answer_id": "FQCC-583-A-001", "score": 0.6141705513000488, "sibling_score": 0.6141705513000488, "answer_score": null, "sibling_qid": "KOC-2026-03-1111-Q005", "sibling_text": "how do you define poor quality of a fuel i told high ccai value x which fuel grade high ccai told rmk 700", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "CCAI — what it is, how it is calculated, and what it is really for", "cross_family": false }, { "answer_id": "FQCC-583-A-003", "score": 0.5854309797286987, "sibling_score": 0.5854309797286987, "answer_score": 0.5626996457576752, "sibling_qid": "CHE-2026-08-3872-Q002", "sibling_text": "fuel oil grade", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel grades and marine fuel naming", "cross_family": false } ] }, { "qid": "KOC-2026-01-1993-Q013", "text": "While lifting cylinder head stuck, cannot use crane next action(chain blocks can be used)", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Cover / Head", "tid": "KOC-2026-01-1993", "tray": "new", "candidates": [ { "answer_id": "CCH-590-004", "score": 0.6446243524551392, "sibling_score": 0.6446243524551392, "answer_score": null, "sibling_qid": "KOC-2025-06-1918-Q006", "sibling_text": "correct procedure for lifting cylinder head", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "What is the correct procedure for lifting a cylinder head, and what checks do you make on the crane beforehand?", "cross_family": false }, { "answer_id": "CRANE-ER-007", "score": 0.6314440965652466, "sibling_score": 0.6314440965652466, "answer_score": 0.5103452444076538, "sibling_qid": "KOC-2026-03-2016-Q004", "sibling_text": "major overhaul done in ship engine crane fails what you do if using chain block then why working of chain block", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Chain block as the crane fallback: selection, advantage & principle", "cross_family": true }, { "answer_id": "HYD-JACK-002", "score": 0.6191486120223999, "sibling_score": 0.6191486120223999, "answer_score": null, "sibling_qid": "CHE-2026-02-0479-Q005S2", "sibling_text": "while removing cylinder head hydraulic jack didn t work what will you do deciding ques", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Hydraulic jack leaks, seizes, will not reach pressure, or nut will not loosen", "cross_family": true } ] }, { "qid": "KOC-2026-01-1993-Q015", "text": "Is crankcase enclosed space, if no why?", "family": "Risk & Safety Management", "subtopic": "Enclosed Space Entry", "tid": "KOC-2026-01-1993", "tray": "review", "candidates": [ { "answer_id": "CC-RELIEF-312-006", "score": 0.6853338479995728, "sibling_score": 0.6853338479995728, "answer_score": 0.5720565170049667, "sibling_qid": "KOC-2022-07-0968-Q004", "sibling_text": "is main engine crankcase a enclosed space no since it has a breather pipe but we follow checklist for safety", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Is the crankcase an enclosed space? 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internal ques", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "EEDI", "tid": "KOC-2026-02-0836", "tray": "review", "candidates": [ { "answer_id": "EEDI-B-001", "score": 0.6999490261077881, "sibling_score": 0.6999490261077881, "answer_score": null, "sibling_qid": "KOC-2026-02-0842-Q006", "sibling_text": "eedi and eeoi diffrence formula internal ms act and how to find out f o conception in eeoi formula i am extremely grateful to issac sir for his excellent coaching and guidance throughout my preparation for class 2 coc examinations his classes are very well structured easy to understand and completely focused on the exam requirements", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "EEDI — formula, unit and the calculation terms", "cross_family": false }, { "answer_id": "EEXI-004", "score": 0.49142900109291077, "sibling_score": 0.49142900109291077, "answer_score": null, "sibling_qid": "KOC-2025-01-0495-Q009", "sibling_text": "eeoi and eexi formula", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Explain EEXI and EEOI, their formulae, and the difference between them", "cross_family": false }, { "answer_id": "EEDI-B-002", "score": 0.4730888307094574, "sibling_score": 0.4730888307094574, "answer_score": null, "sibling_qid": "KOL-2020-11-0443-Q004", "sibling_text": "eedi eeoi attained required difference formula certificate and validity", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Attained EEDI, required EEDI, reference line value and reduction factor", "cross_family": false } ] }, { "qid": "KOC-2026-02-0838-Q003", "text": "IMO facilitation committee Garbage discharge criteria Criteria for food waste, wash water,cleaning agents,animal carcass SAFCON survey Draw ship forward section showing collision bulkhead,panting beams Ballast water standards D1 D2 D3 D4 D5 Type of keels Draw bar keel Internal Difference between Liferaft in aft and forward of the ship", "family": "", "subtopic": "Panting / Pounding / Slamming", "tid": "KOC-2026-02-0838", "tray": "new", "candidates": [ { "answer_id": "BWM-D1D2-P04-002", "score": 0.6394244432449341, "sibling_score": 0.6394244432449341, "answer_score": null, "sibling_qid": "KOC-2022-11-0112-Q003", "sibling_text": "ballast water d2 d4 standards also asked g8 guidelines", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "D-2 standard and the BWMS Code (ex-G8) — type approval of treatment systems", "cross_family": false }, { "answer_id": "OWS-15PPM-002", "score": 0.6372283697128296, "sibling_score": 0.6372283697128296, "answer_score": null, "sibling_qid": "CHE-2025-11-0080-Q008", "sibling_text": "bilge water discharge criteria", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ODC-002", "score": 0.6367298364639282, "sibling_score": 0.6367298364639282, "answer_score": null, "sibling_qid": "KOL-2026-03-1206-Q004", "sibling_text": "bilge discharge criteria", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Machinery-space (engine room) bilge discharge criteria — outside a special area", "cross_family": false } ] }, { "qid": "KOC-2026-02-0840-Q009", "text": "You are in port and you realise that your statutory certificates are expired. Who all to inform. What actions they will take", "family": "Maritime Law & Certificates", "subtopic": "CERTIFICATES", "tid": "KOC-2026-02-0840", "tray": "review", "candidates": [ { "answer_id": "CERT-LIST-P02-004", "score": 0.8767430186271667, "sibling_score": 0.8767430186271667, "answer_score": null, "sibling_qid": "KOC-2026-04-0909-Q009", "sibling_text": "you are in port and you realise that your statutory certificates are expired who all to inform what actions they will take", "sibling_family": "Maritime Law & Certificates", "via": "sibling", "answer_title": "Validity, renewal, interim certificates and e-certificate verification", "cross_family": false }, { "answer_id": "CERT-LIST-P01-001", "score": 0.536849856376648, "sibling_score": 0.536849856376648, "answer_score": null, "sibling_qid": "KOC-2024-01-0277-Q008", "sibling_text": "statutory certificates onboard", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "List the statutory certificates carried onboard a ship.", "cross_family": true }, { "answer_id": "SEAWTHY-003", "score": 0.5357148051261902, "sibling_score": 0.5357148051261902, "answer_score": null, "sibling_qid": "MUM-2025-01-2787-Q002", "sibling_text": "going for drydock prepration will you do anil sir joined continue from dry dock prepration stealer plate he joined for certificate qstn what is unsafe n unseaworthy ship now tell me certificates again was unable to recall", "sibling_family": "Maritime Law & Certificates", "via": "sibling", "answer_title": "Unsafe and unseaworthy vessel — in a certificates and drydock discussion", "cross_family": false } ] }, { "qid": "KOC-2026-02-1098-Q009", "text": "Boiler back fire causes?", "family": "Boilers - Operations & Firing", "subtopic": "Boiler Backfire / Blowback", "tid": "KOC-2026-02-1098", "tray": "review", "candidates": [ { "answer_id": "BFS-257-006", "score": 0.8546910285949707, "sibling_score": 0.8546910285949707, "answer_score": 0.6586434841156006, "sibling_qid": "KOC-2026-02-1100-Q009", "sibling_text": "boiler back fire causes", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler backfire / blowback / panting — causes, prevention, actions", "cross_family": false }, { "answer_id": "BFM-330-003", "score": 0.8427506685256958, "sibling_score": 0.8427506685256958, "answer_score": 0.6271198183298111, "sibling_qid": "MUM-2025-12-2879-Q008", "sibling_text": "boiler running in manual mode resulting in back flow for each fire reason", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler vibration, backflow and furnace blowback during firing", "cross_family": false }, { "answer_id": "BBF-621-001", "score": 0.8053030371665955, "sibling_score": 0.8053030371665955, "answer_score": 0.6324285387992858, "sibling_qid": "MUM-2026-09-3936-Q006", "sibling_text": "boiler blow back reason", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "What is boiler backfire / blowback? Explain the furnace event, the reasons, and how you prevent it.", "cross_family": false } ] }, { "qid": "KOC-2026-02-1099-Q002S2", "text": "Nox limit of tier2?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "NOx / SOx / ODS", "tid": "KOC-2026-02-1099", "tray": "new", "candidates": [ { "answer_id": "A6-NSEC-003", "score": 0.5801096558570862, "sibling_score": 0.5801096558570862, "answer_score": null, "sibling_qid": "MUM-2024-07-0179-Q007", "sibling_text": "nox tier1 and nox2 and 3", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "NOx — formation, limits & reduction (SCR / EGR)", "cross_family": false }, { "answer_id": "A6-NSEC-002", "score": 0.5091684460639954, "sibling_score": 0.5091684460639954, "answer_score": null, "sibling_qid": "MUM-2025-08-0393-Q008", "sibling_text": "nox techincal file and code and limits", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "NOx Technical Code vs NOx Technical File", "cross_family": false }, { "answer_id": "AIRP-188-007", "score": 0.46293264627456665, "sibling_score": 0.46293264627456665, "answer_score": 0.37849677801132203, "sibling_qid": "MUM-2024-11-0222-Q001", "sibling_text": "nox limitations annex 6", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "NOx and SOx control under Annex VI (Reg 13 & 14) — limits and abatement", "cross_family": false } ] }, { "qid": "KOC-2026-02-1099-Q003S2", "text": "CCAI Limits and your last bunker value?", "family": "NDT & Material Testing", "subtopic": "Stainless / Gun Metal / Brass", "tid": "KOC-2026-02-1099", "tray": "new", "candidates": [ { "answer_id": "BCAT-003", "score": 0.4748580753803253, "sibling_score": 0.4748580753803253, "answer_score": 0.3732609122991562, "sibling_qid": "MUM-2026-04-2960-Q005", "sibling_text": "cat fines limit and how to remove cat fines from bunkered fuel", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "BCAT-03. Cat fines: what limits apply in fuel analysis and at the engine inlet, and how are they reduced?", "cross_family": true }, { "answer_id": "FQCC-583-A-001", "score": 0.4691881537437439, "sibling_score": 0.4691881537437439, "answer_score": 0.4005806609988212, "sibling_qid": "KOC-2024-10-2054-Q007", "sibling_text": "in bunker report ccai 950 what precaution will take while using this bunker", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "CCAI — what it is, how it is calculated, and what it is really for", "cross_family": true }, { "answer_id": "FQCC-583-A-005", "score": 0.466998815536499, "sibling_score": 0.466998815536499, "answer_score": 0.3639124512672424, "sibling_qid": "MUM-2025-01-2266-Q002", "sibling_text": "significance of ccfi he said in bunker report it is written to take caution for high ccfi or cafi what does that signifies", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "The bunker / fuel oil analysis report — what is checked and who says so", "cross_family": true } ] }, { "qid": "KOC-2026-02-1106-Q006", "text": "Boiler foundation explanation ( sliding foot)", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Chocks", "tid": "KOC-2026-02-1106", "tray": "new", "candidates": [ { "answer_id": "CHK-RM-002", "score": 0.4718751609325409, "sibling_score": 0.4718751609325409, "answer_score": null, "sibling_qid": "KOL-2021-09-3456-Q005", "sibling_text": "what are the different types of foundation chocks in main engine how are resin chocks built in place and advantages", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Explain resin chocking — what it is, how it is done, and how resin chocks are cast and poured.", "cross_family": false }, { "answer_id": "BLR-DRUM-005", "score": 0.4486461281776428, "sibling_score": 0.4486461281776428, "answer_score": null, "sibling_qid": "KOL-2021-11-1640-Q003", "sibling_text": "boiler manhole minor axis", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Boiler manhole-door minor-axis orientation — longitudinal vs transverse stress", "cross_family": true }, { "answer_id": "BLR-DRUM-008", "score": 0.4434223771095276, "sibling_score": 0.4434223771095276, "answer_score": 0.40987128913402554, "sibling_qid": "KOL-2022-07-1698-Q003", "sibling_text": "how boiler supported to ship structure", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "How a boiler is supported to the ship structure", "cross_family": true } ] }, { "qid": "KOC-2026-02-1708-Q005", "text": "Exi exe,zener barrier", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOC-2026-02-1708", "tray": "new", "candidates": [ { "answer_id": "EPC-P02-03", "score": 0.5521962642669678, "sibling_score": 0.5521962642669678, "answer_score": 0.36750108003616333, "sibling_qid": "MUM-2026-07-3813-Q002", "sibling_text": "zener barrier full explanation every component", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Where is a zener diode used on board and why — voltage regulator, AVR, clipper — and explain one application in detail.", "cross_family": false }, { "answer_id": "EPC-P02-01", "score": 0.5517517328262329, "sibling_score": 0.5517517328262329, "answer_score": 0.4004410058259964, "sibling_qid": "MUM-2026-02-1957-Q003", "sibling_text": "zener barrier full explanation every component", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a zener diode? 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0.8013965487480164, "sibling_score": 0.8013965487480164, "answer_score": 0.5467735856771468, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.799839973449707, "sibling_score": 0.799839973449707, "answer_score": 0.5213733673095703, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "KOC-2026-04-0916-Q003", "text": "Type of ship sailed", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2026-04-0916", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8460315465927124, "sibling_score": 0.8460315465927124, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.845042884349823, "sibling_score": 0.845042884349823, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7928011417388916, "sibling_score": 0.7928011417388916, "answer_score": null, "sibling_qid": "CHE-2026-03-0253-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "KOC-2026-04-0916-Q021", "text": "Rudder leak test", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOC-2026-04-0916", "tray": "new", "candidates": [ { "answer_id": "PCD-P03-04", "score": 0.4882524609565735, "sibling_score": 0.4882524609565735, "answer_score": null, "sibling_qid": "MUM-2026-07-3733-Q010", "sibling_text": "how to find leakage in rudder", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Gland packing — types, and gland leakage that persists after re-packing", "cross_family": true }, { "answer_id": "SBPG-A-003", "score": 0.4784887433052063, "sibling_score": 0.4784887433052063, "answer_score": 0.3174709379673004, "sibling_qid": "KOC-2026-02-2002-Q007", "sibling_text": "from where its leaking", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Stuffing box leakage — symptoms, drain-tank rise, running checks, source and post-assembly confirmation", "cross_family": false }, { "answer_id": "REFR-FLT-003", "score": 0.47841566801071167, "sibling_score": 0.47841566801071167, "answer_score": null, "sibling_qid": "KOL-2021-08-3453-Q004", "sibling_text": "domestic ref leak test", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Refrigerant leakage or loss: detect, confirm, respond, and the record-keeping", "cross_family": true } ] }, { "qid": "KOC-2026-04-1127-Q005", "text": "What are the advantages of using helical gear ?", "family": "General Marine Engineering", "subtopic": "Reduction Gear / Gearbox", "tid": "KOC-2026-04-1127", "tray": "new", "candidates": [ { "answer_id": "CHAIN-TENS-B-004", "score": 0.5622764825820923, "sibling_score": 0.5622764825820923, "answer_score": null, "sibling_qid": "KOL-2019-10-1489-Q004", "sibling_text": "advantage of gear drive and chain drive", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Chain drive versus gear drive for the camshaft", "cross_family": true }, { "answer_id": "CHAIN-TENS-B-003", "score": 0.4735400676727295, "sibling_score": 0.4735400676727295, "answer_score": null, "sibling_qid": "KOL-2018-01-1340-Q004", "sibling_text": "advantages of chain and sprocket over gears i gave him a few points but he said u r missing something very important", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Chain-drive arrangement — sprockets, idlers, links and chain case", "cross_family": true }, { "answer_id": "PCD-P05-03", "score": 0.4720444679260254, "sibling_score": 0.4720444679260254, "answer_score": null, "sibling_qid": "KOL-2019-04-1869-Q009", "sibling_text": "gearpump material advantages", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Gear pump — construction, working, backlash, tooth profile, safety valve, why not for sea water", "cross_family": true } ] }, { "qid": "KOC-2026-04-1751-Q010", "text": "Water ingress system, how it is electrically working", "family": "SOLAS - General", "subtopic": "Water Ingress Alarm/System", "tid": "KOC-2026-04-1751", "tray": "new", "candidates": [ { "answer_id": "CABLE-INS-C-002", "score": 0.5386147499084473, "sibling_score": 0.5386147499084473, "answer_score": null, "sibling_qid": "KOC-2025-08-1561-Q005", "sibling_text": "electrical wire passing arangemnt through water tight compartment", "sibling_family": "", "via": "sibling", "answer_title": "Cable laying, routing & watertight-bulkhead penetration", "cross_family": false }, { "answer_id": "SOLAS12-BC-E-001", "score": 0.5322831273078918, "sibling_score": 0.5322831273078918, "answer_score": null, "sibling_qid": "CHE-2026-09-3918-Q001", "sibling_text": "water ingress alarm", "sibling_family": "SOLAS - General", "via": "sibling", "answer_title": "Water ingress detection & alarm system (WIDAS) — SOLAS XII/12", "cross_family": false }, { "answer_id": "SOLAS12-BC-E-003", "score": 0.5227668881416321, "sibling_score": 0.5227668881416321, "answer_score": null, "sibling_qid": "KOC-2023-05-0187-Q003", "sibling_text": "dewatering system complete explanation cross electrical safety provided for operating the valve number of non return valves", "sibling_family": "", "via": "sibling", "answer_title": "Dewatering system / availability of pumping systems — SOLAS XII/13", "cross_family": false } ] }, { "qid": "KOC-2026-05-0001-Q002", "text": "What is loadicator and its use and cross ?", "family": "SOLAS", "subtopic": "Stability Information Booklet", "tid": "KOC-2026-05-0001", "tray": "new", "candidates": [ { "answer_id": "SOLAS12-BC-D-001", "score": 0.5266916751861572, "sibling_score": 0.5266916751861572, "answer_score": 0.32205232679843904, "sibling_qid": "KOL-2021-10-0563-Q004", "sibling_text": "purpose of loadicator all asked by rao sir", "sibling_family": "", "via": "sibling", "answer_title": "Loadicator — why a loading instrument is required, and the loading-restriction concern", "cross_family": false }, { "answer_id": "LL-CONV-P04-002", "score": 0.40489518642425537, "sibling_score": 0.40489518642425537, "answer_score": null, "sibling_qid": "KOL-2016-07-0005-Q003", "sibling_text": "loadline convention and uses", "sibling_family": "", "via": "sibling", "answer_title": "Load Line Convention, certificates, assigning authority and detention risk", "cross_family": false }, { "answer_id": "LL-CONV-P06-004", "score": 0.40476205945014954, "sibling_score": 0.40476205945014954, "answer_score": 0.2534167364239693, "sibling_qid": "KOC-2024-11-0463-Q009", "sibling_text": "loadline", "sibling_family": "", "via": "sibling", "answer_title": "LLC-P06-04 - General load-line requirement, marks, stability link and overloading consequences", "cross_family": false } ] }, { "qid": "KOC-2026-05-0003-Q004", "text": "Auxiliary engine performance analysis and how to make sure that the pmax is satisfactory ?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE 4-Stroke Theory", "tid": "KOC-2026-05-0003", "tray": "new", "candidates": [ { "answer_id": "AEDEC-291-009", "score": 0.6031838059425354, "sibling_score": 0.6031838059425354, "answer_score": null, "sibling_qid": "KOL-2025-06-3786-Q005", "sibling_text": "load carrying capacity of your aux eng is lower what ovrhaul you will plan as 2e", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "9. Planning overhaul when load-carrying capacity is low", "cross_family": false }, { "answer_id": "AEDEC-291-005", "score": 0.5952188372612, "sibling_score": 0.5952188372612, "answer_score": null, "sibling_qid": "KOC-2025-08-1940-Q011", "sibling_text": "explain running in procedure of aux engine", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "5. Running-in, gradual loading, confirming run-in", "cross_family": false }, { "answer_id": "AEOVT-559-003", "score": 0.5787094235420227, "sibling_score": 0.5787094235420227, "answer_score": null, "sibling_qid": "MUM-2026-01-1905-Q001S3", "sibling_text": "over speed of auxiliary engine", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Overspeed of a diesel generator / auxiliary engine — what it is and why it matters", "cross_family": false } ] }, { "qid": "KOC-2026-05-0003-Q008", "text": "what is mean by PCD of a flange ?", "family": "Workshop & Welding", "subtopic": "Pipe Fabrication", "tid": "KOC-2026-05-0003", "tray": "new", "candidates": [ { "answer_id": "ISC-329-003", "score": 0.5568960905075073, "sibling_score": 0.5568960905075073, "answer_score": 0.41469008922576905, "sibling_qid": "KOL-2022-11-0703-Q005", "sibling_text": "international shore coupling purpose why required how many how it look like dimension since i told him pcd 143mm he told no this is not a normal flange that you are telling me about pcd then i told him thickness then also he not accepted he told me there is something very important that you are missing i don t have any idea", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Draw and describe the international shore connection — its dimensions, material and flange arrangement.", "cross_family": true }, { "answer_id": "PIPEFAB-008", "score": 0.49178171157836914, "sibling_score": 0.49178171157836914, "answer_score": 0.3681582674384117, "sibling_qid": "KOL-2022-01-4004-Q006", "sibling_text": "difference in different types of flanges onboard", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "What are the different types of flange used on board, and how do they differ?", "cross_family": false }, { "answer_id": "PIPE-MAT-008", "score": 0.4835296869277954, "sibling_score": 0.4835296869277954, "answer_score": 0.34474777430295944, "sibling_qid": "KOL-2019-01-3204-Q005", "sibling_text": "flange difference between high pressure and low pressure pipe", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Identifying HP vs LP, and steam vs water, pipe flanges", "cross_family": false } ] }, { "qid": "KOC-2026-05-0004-Q008", "text": "Why Sweep test?", "family": "NDT & Material Testing", "subtopic": "Sweep Test", "tid": "KOC-2026-05-0004", "tray": "new", "candidates": [ { "answer_id": "IMP-CHARPY-001", "score": 0.41438066959381104, "sibling_score": 0.41438066959381104, "answer_score": null, "sibling_qid": "MUM-2026-07-3737-Q010", "sibling_text": "impact test why we do impact test", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "What is an impact test, and what is its purpose or significance?", "cross_family": false }, { "answer_id": "MATPROP-A-006", "score": 0.4140075147151947, "sibling_score": 0.4140075147151947, "answer_score": null, "sibling_qid": "KOL-2020-02-1524-Q010", "sibling_text": "destructive tests", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Destructive and material tests", "cross_family": false }, { "answer_id": "NDT-METH-P01-001", "score": 0.3919510841369629, "sibling_score": 0.3919510841369629, "answer_score": null, "sibling_qid": "KOC-2025-08-1936-Q003", "sibling_text": "non destructive tests explain", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "NDT methods, NDT vs destructive testing, and onboard use", "cross_family": false } ] }, { "qid": "KOC-2026-05-0004-Q008S2", "text": "values for sweep test?", "family": "NDT & Material Testing", "subtopic": "Sweep Test", "tid": "KOC-2026-05-0004", "tray": "new", "candidates": [ { "answer_id": "IRT-C-006", "score": 0.5138891935348511, "sibling_score": 0.5138891935348511, "answer_score": 0.28280620872974394, "sibling_qid": "KOL-2025-01-2762-Q001", "sibling_text": "ir test values", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Acceptable IR values, the minimum & \"what if it's low\"", "cross_family": true }, { "answer_id": "FLD-601-003", "score": 0.4790858030319214, "sibling_score": 0.4790858030319214, "answer_score": null, "sibling_qid": "MUM-2026-05-3213-Q003", "sibling_text": "lel values", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What are LEL, LFL, UFL and HFL, and what are their values?", "cross_family": true }, { "answer_id": "PI-211-004", "score": 0.4744179844856262, "sibling_score": 0.4744179844856262, "answer_score": null, "sibling_qid": "KOL-2023-06-2660-Q007", "sibling_text": "pi test and dar and test values", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "PI and DAR — how they relate, their purpose, and acceptable values", "cross_family": true } ] }, { "qid": "KOC-2026-05-0005-Q001", "text": "Types of ship ? No of attempts-2", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2026-05-0005", "tray": "new", "candidates": [ { "answer_id": "LLST-AB-001", "score": 0.6086280941963196, "sibling_score": 0.6086280941963196, "answer_score": 0.3896622002124786, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.5874019265174866, "sibling_score": 0.5874019265174866, "answer_score": null, "sibling_qid": "MUM-2026-02-1280-Q001", "sibling_text": "type of ship done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.5567033290863037, "sibling_score": 0.5567033290863037, "answer_score": null, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "KOC-2026-05-0005-Q002", "text": "Written status ?", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOC-2026-05-0005", "tray": "review", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.6558767557144165, "sibling_score": 0.6558767557144165, "answer_score": null, "sibling_qid": "MUM-2026-03-1294-Q001", "sibling_text": "status of writtens and orals", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.5302214026451111, "sibling_score": 0.5302214026451111, "answer_score": null, "sibling_qid": "KOC-2026-08-2106-Q001", "sibling_text": "status of written oral company type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": true }, { "answer_id": "FLAG-ST-001", "score": 0.504814088344574, "sibling_score": 0.504814088344574, "answer_score": null, "sibling_qid": "KOL-2025-08-1003-Q005", "sibling_text": "flag state", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Flag State — authority, role, duties and requirements", "cross_family": true } ] }, { "qid": "KOC-2026-05-0007-Q001", "text": "Type of vessel and attempt", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2026-05-0007", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.6955766081809998, "sibling_score": 0.6955766081809998, "answer_score": null, "sibling_qid": "CHE-2026-02-0249-Q001", "sibling_text": "which type of vessel", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.6658270955085754, "sibling_score": 0.6658270955085754, "answer_score": null, "sibling_qid": "CHE-2026-02-0481-Q001", "sibling_text": "type of vessels sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.6527892351150513, "sibling_score": 0.6527892351150513, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false } ] }, { "qid": "KOC-2026-05-0008-Q001", "text": "Type of ship, and engines done ?", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "KOC-2026-05-0008", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.761634111404419, "sibling_score": 0.761634111404419, "answer_score": null, "sibling_qid": "MUM-2025-08-2357-Q001", "sibling_text": "type of ship type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.7573366761207581, "sibling_score": 0.7573366761207581, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q001", "sibling_text": "type of ship sailed and engines details", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.7493740916252136, "sibling_score": 0.7493740916252136, "answer_score": null, "sibling_qid": "MUM-2026-02-1280-Q001", "sibling_text": "type of ship done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false } ] }, { "qid": "KOC-2026-05-0009-Q001", "text": "Forces of bedplate ?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Bedplate / A-Frame", "tid": "KOC-2026-05-0009", "tray": "new", "candidates": [ { "answer_id": "FWFB-P02-007", "score": 0.5577971935272217, "sibling_score": 0.5577971935272217, "answer_score": null, "sibling_qid": "MUM-2026-03-2952-Q007", "sibling_text": "what type of bedplate", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Transverse and longitudinal girders: arrangement and purpose", "cross_family": false }, { "answer_id": "TR-TB-PA-001", "score": 0.5186762809753418, "sibling_score": 0.5186762809753418, "answer_score": null, "sibling_qid": "KOL-2024-04-3686-Q003", "sibling_text": "how firing forces transmitted tie rods arrangement how fitted how crankshaft rests on bedplate how bed plate girders fitted", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Function of tie rods and the firing-load path", "cross_family": false }, { "answer_id": "BED-CHOCK-001", "score": 0.5144641995429993, "sibling_score": 0.5144641995429993, "answer_score": null, "sibling_qid": "MUM-2023-08-0952-Q004", "sibling_text": "how to fix bed plate on ship", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "How is the main-engine bedplate fixed to the ship's structure?", "cross_family": false } ] }, { "qid": "KOC-2026-05-0009-Q010", "text": "Rank,Jobs done on ship ?", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOC-2026-05-0009", "tray": "new", "candidates": [ { "answer_id": "DUS-P4-02", "score": 0.4737927317619324, "sibling_score": 0.4737927317619324, "answer_score": 0.38559312522411343, "sibling_qid": "MUM-2026-06-3629-Q009", "sibling_text": "jobs in drydock", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Card 2 — Drydock jobs: the 2E's working list", "cross_family": true }, { "answer_id": "CII-RATE-P02-002", "score": 0.46306031942367554, "sibling_score": 0.46306031942367554, "answer_score": null, "sibling_qid": "MUM-2022-09-0046-Q011", "sibling_text": "if ship get rating of e what should do", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "2. Corrective action when the ship is rated D or E", "cross_family": true }, { "answer_id": "EXHV-P01-001", "score": 0.4625183939933777, "sibling_score": 0.4625183939933777, "answer_score": null, "sibling_qid": "MUM-2026-03-2588-Q001", "sibling_text": "which ships u have done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": true } ] }, { "qid": "KOC-2026-05-0009-Q012", "text": "BN value for AE ?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE 4-Stroke Theory", "tid": "KOC-2026-05-0009", "tray": "new", "candidates": [ { "answer_id": "AE-CAMTIM-005", "score": 0.43747490644454956, "sibling_score": 0.43747490644454956, "answer_score": null, "sibling_qid": "MUM-2025-11-2477-Q002", "sibling_text": "timing of ae", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "What is meant by auxiliary-engine timing?", "cross_family": false }, { "answer_id": "MIP-264-004", "score": 0.4279402196407318, "sibling_score": 0.4279402196407318, "answer_score": null, "sibling_qid": "KOC-2024-02-0989-Q002", "sibling_text": "bmep value", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "BMEP value and how it is interpreted", "cross_family": true }, { "answer_id": "AEDEC-291-001", "score": 0.4143419861793518, "sibling_score": 0.4143419861793518, "answer_score": null, "sibling_qid": "CHE-2026-03-0486-Q009", "sibling_text": "maintenance done on ae", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "1. AE decarb / overhaul — preparation and full procedure", "cross_family": false } ] }, { "qid": "KOC-2026-05-0010-Q008", "text": "Internal : Bridge equipment and use ?", "family": "Navigation & Bridge Equipment", "subtopic": "Gyro Compass / Gyroscope", "tid": "KOC-2026-05-0010", "tray": "new", "candidates": [ { "answer_id": "VOLT-SYS-008", "score": 0.5834721922874451, "sibling_score": 0.5834721922874451, "answer_score": null, "sibling_qid": "KOL-2022-07-2582-Q004", "sibling_text": "equipments on bridge supply voltage", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Why standard shipboard voltages: 440, 230/220, 110 and 24", "cross_family": true }, { "answer_id": "LSA-CODE-BF044-002", "score": 0.56218421459198, "sibling_score": 0.56218421459198, "answer_score": null, "sibling_qid": "KOL-2022-03-0612-Q005", "sibling_text": "safety equipment on bridge according to lsa", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What life-saving equipment does the LSA Code / SOLAS Chapter III require on or near the bridge?", "cross_family": true }, { "answer_id": "MN-BRG-C-003", "score": 0.5200031399726868, "sibling_score": 0.5200031399726868, "answer_score": null, "sibling_qid": "KOL-2020-02-3329-Q001", "sibling_text": "bridge gauge", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main bearing clearance and wear-down: measuring and interpreting", "cross_family": true } ] }, { "qid": "KOC-2026-05-0012-Q009", "text": "Function of gas admission valve and sealing oil?", "family": "Dual Fuel / Gas Systems", "subtopic": "Gas Injection", "tid": "KOC-2026-05-0012", "tray": "new", "candidates": [ { "answer_id": "EXHV-P01-002", "score": 0.5365267992019653, "sibling_score": 0.5365267992019653, "answer_score": null, "sibling_qid": "CHE-2021-07-0183-Q006", "sibling_text": "spring air pressure hw much what happens with air when oil pressure is applied to open exhaust valve it should restrict it s opening hw it s prevented asked by internal", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Air spring and soft closing", "cross_family": true }, { "answer_id": "MARVS-TANK-001", "score": 0.5331379175186157, "sibling_score": 0.5331379175186157, "answer_score": null, "sibling_qid": "KOC-2025-11-0737-Q004", "sibling_text": "gas tanker safety valve working", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "MARVS — location, pressure setting, purpose, drawing and how the safety valve works", "cross_family": true }, { "answer_id": "MR-DS-PV-B-003", "score": 0.5269341468811035, "sibling_score": 0.5269341468811035, "answer_score": null, "sibling_qid": "MUM-2025-08-0415-Q001", "sibling_text": "deck seal function and valves before after deck seal", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "3. Alarms, trips, valves, and abnormal conditions of the deck seal", "cross_family": true } ] }, { "qid": "KOC-2026-05-0012-Q010", "text": "Timing of cylinder lubrication done in wingd engine?", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Cover / Head", "tid": "KOC-2026-05-0012", "tray": "new", "candidates": [ { "answer_id": "CYL-LUB-A-002", "score": 0.6372172832489014, "sibling_score": 0.6372172832489014, "answer_score": null, "sibling_qid": "KOL-2023-10-4028-Q004", "sibling_text": "cylinder lubrication dosage and timing factors involved", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Feed-rate control — quantity, timing and load/rpm-dependent dosing", "cross_family": true }, { "answer_id": "ALPHA-LUB-B-004", "score": 0.631761908531189, "sibling_score": 0.631761908531189, "answer_score": null, "sibling_qid": "KOL-2019-11-1499-Q003", "sibling_text": "cylinder lubrication alpha when injection taking place timing quantum of lubrication couldn t answer", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Alpha lubricator — feed-rate, timing, quantity and SLOC/SCOC calculation", "cross_family": true }, { "answer_id": "PIST-CSI-B-003", "score": 0.6078495383262634, "sibling_score": 0.6078495383262634, "answer_score": null, "sibling_qid": "CHE-2026-05-0583-Q006", "sibling_text": "during piston overhaul after cleaning of piston checks", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Inspecting, calibrating and gauging a removed piston", "cross_family": false } ] }, { "qid": "KOC-2026-05-0014-Q001", "text": "Engine name ?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOC-2026-05-0014", "tray": "review", "candidates": [ { "answer_id": "ENG-NOM-005", "score": 0.8174536824226379, "sibling_score": 0.8174536824226379, "answer_score": null, "sibling_qid": "KOL-2026-09-4295-Q002", "sibling_text": "engine name and full form", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false }, { "answer_id": "MIP-264-003", "score": 0.7641193270683289, "sibling_score": 0.7641193270683289, "answer_score": null, "sibling_qid": "KOC-2026-08-2145-Q004", "sibling_text": "engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Calculate engine power: IHP and BHP, and where each is measured", "cross_family": false }, { "answer_id": "ETP-344-P03-001", "score": 0.7254988551139832, "sibling_score": 0.7254988551139832, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false } ] }, { "qid": "KOC-2026-05-0029-Q003", "text": "Cross-section of Exhaust bellow?", "family": "2-Stroke - Exhaust, Valve & Starting Air", "subtopic": "Exhaust Manifold / Uptakes", "tid": "KOC-2026-05-0029", "tray": "new", "candidates": [ { "answer_id": "EXHV-297-007", "score": 0.6129819750785828, "sibling_score": 0.6129819750785828, "answer_score": 0.433498877286911, "sibling_qid": "MUM-2025-10-2433-Q004", "sibling_text": "main engine exhaust manifold construction and cross question", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust manifold / gas receiver — construction, joints, inspection & temperature locations", "cross_family": false }, { "answer_id": "EXHV-080-BF37-001", "score": 0.6001356244087219, "sibling_score": 0.6001356244087219, "answer_score": null, "sibling_qid": "KOL-2025-11-2025-Q005", "sibling_text": "variable exhaust closing", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "What is variable exhaust valve closing (VEC)? Components and advantages.", "cross_family": false }, { "answer_id": "EXHV-297-001", "score": 0.5997278094291687, "sibling_score": 0.5997278094291687, "answer_score": null, "sibling_qid": "MUM-2026-05-3219-Q005", "sibling_text": "exhaust valve construction", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve — construction, materials, type, working & latest developments", "cross_family": false } ] }, { "qid": "KOC-2026-05-0031-Q001", "text": "How does ME engine finds out timing for fuel injection?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Angle Encoder", "tid": "KOC-2026-05-0031", "tray": "review", "candidates": [ { "answer_id": "FIVA-220-002", "score": 0.7065543532371521, "sibling_score": 0.7065543532371521, "answer_score": null, "sibling_qid": "KOL-2023-10-3640-Q007", "sibling_text": "which engine you have sailed on tell me how me engine will time the fuel injection lots of x quest on angle encoder fiva valve control signal coming from where what type of valve is fiva solenoid lots of x ques on valve timing signal", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "FIVA control of fuel injection — timing, quantity and actuation", "cross_family": false }, { "answer_id": "FCL-P02-001", "score": 0.6995241045951843, "sibling_score": 0.6995241045951843, "answer_score": null, "sibling_qid": "MUM-2026-01-1240-Q007", "sibling_text": "fuel injection timing how to check", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel pump / injection timing check, setting, and adjustment", "cross_family": false }, { "answer_id": "VIT-MECH-A-002", "score": 0.6992073655128479, "sibling_score": 0.6992073655128479, "answer_score": null, "sibling_qid": "CHE-2025-10-0448-Q002", "sibling_text": "how the start of injection timing is controlled", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How VIT works — varying the start of injection on the fuel pump", "cross_family": false } ] }, { "qid": "KOC-2026-05-0031-Q006", "text": "EGB boiler safety valve setting?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2026-05-0031", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-001", "score": 0.7969571948051453, "sibling_score": 0.7969571948051453, "answer_score": null, "sibling_qid": "KOC-2026-05-2126-Q006", "sibling_text": "egb safety valve setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.7558348774909973, "sibling_score": 0.7558348774909973, "answer_score": null, "sibling_qid": "MUM-2026-03-2935-Q013", "sibling_text": "boiler safety valve setting in presence of surveyor after survey", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.7373223900794983, "sibling_score": 0.7373223900794983, "answer_score": null, "sibling_qid": "KOC-2026-05-0034-Q010", "sibling_text": "boiler safety valve types and how safety valve is set complete procedures", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOC-2026-05-0032-Q001", "text": "Type of ship ,rank?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2026-05-0032", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.7110678553581238, "sibling_score": 0.7110678553581238, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7084023356437683, "sibling_score": 0.7084023356437683, "answer_score": 0.4681370586156845, "sibling_qid": "CHE-2026-05-0614-Q001", "sibling_text": "start from type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LL-CONV-P06-001", "score": 0.45828489661216737, "sibling_score": null, "answer_score": 0.45828489661216737, "sibling_qid": "", "sibling_text": "llc p06 01 ship categories and freeboard differences type a type b and practical ship cases", "sibling_family": "", "via": "answer_title", "answer_title": "LLC-P06-01 - Ship categories and freeboard differences: Type A, Type B and practical ship cases", "cross_family": false } ] }, { "qid": "KOC-2026-05-0034-Q001", "text": "Written and oral status?", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOC-2026-05-0034", "tray": "review", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.7625004053115845, "sibling_score": 0.7625004053115845, "answer_score": null, "sibling_qid": "MUM-2026-05-3187-Q001", "sibling_text": "status of other orals and written", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.5736682415008545, "sibling_score": 0.5736682415008545, "answer_score": null, "sibling_qid": "MUM-2026-05-2995-Q001", "sibling_text": "written and oral status type of ship and company", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": true }, { "answer_id": "AE-CRP-005", "score": 0.4465143382549286, "sibling_score": 0.4465143382549286, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q001", "sibling_text": "type of vessel engine make written and oral status", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": true } ] }, { "qid": "KOC-2026-05-0034-Q002", "text": "Which all ships done and last rank?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2026-05-0034", "tray": "new", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.6127109527587891, "sibling_score": 0.6127109527587891, "answer_score": null, "sibling_qid": "MUM-2026-02-1280-Q001", "sibling_text": "type of ship done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "CLASS-NOT-001", "score": 0.561652660369873, "sibling_score": 0.561652660369873, "answer_score": null, "sibling_qid": "MUM-2026-06-3644-Q002", "sibling_text": "draw notation of last ship", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is class notation, and how would you explain the notation written for your ship?", "cross_family": true }, { "answer_id": "LLST-AB-001", "score": 0.5511961579322815, "sibling_score": 0.5511961579322815, "answer_score": null, "sibling_qid": "CHE-2026-05-0614-Q001", "sibling_text": "start from type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "KOC-2026-05-0034-Q003", "text": "Main engine type, aux engine type, boiler specs?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOC-2026-05-0034", "tray": "review", "candidates": [ { "answer_id": "AEME-DIFF-001", "score": 0.7762308716773987, "sibling_score": 0.7762308716773987, "answer_score": 0.5048101067543029, "sibling_qid": "MUM-2026-05-3082-Q001", "sibling_text": "type of engine boiler aux engine generator", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-001", "score": 0.7179705500602722, "sibling_score": 0.7179705500602722, "answer_score": null, "sibling_qid": "MUM-2026-06-3637-Q001", "sibling_text": "type of main engine generator boiler purifier compressor", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "1. 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Checks on no-load and before taking load", "cross_family": false }, { "answer_id": "LO-TEST-P01-003", "score": 0.5278966426849365, "sibling_score": 0.5278966426849365, "answer_score": null, "sibling_qid": "CHE-2025-08-0418-Q005", "sibling_text": "ae lo report what all thigs u will check", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Reading a shore analysis report: metals, FTIR and red flags", "cross_family": true }, { "answer_id": "AE-CRP-003", "score": 0.525829553604126, "sibling_score": 0.525829553604126, "answer_score": null, "sibling_qid": "KOC-2026-01-1989-Q007", "sibling_text": "what checks to be done piston of ae", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE piston, ring and groove checks; piston material", "cross_family": false } ] }, { "qid": "KOC-2026-05-0041-Q008", "text": "Rudder functions, bearing clearance increase reasons and effects?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Bearing Clearance", "tid": "KOC-2026-05-0041", "tray": "new", "candidates": [ { "answer_id": "BCL-592-003", "score": 0.6209579110145569, "sibling_score": 0.6209579110145569, "answer_score": 0.42283867597579955, "sibling_qid": "KOC-2024-04-2044-Q006", "sibling_text": "effect of increased and decreased bearing clearance", "sibling_family": "2-Stroke - 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Type of ship?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2026-05-0042", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.7504643201828003, "sibling_score": 0.7504643201828003, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.7301943302154541, "sibling_score": 0.7301943302154541, "answer_score": 0.439762157201767, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7279661893844604, "sibling_score": 0.7279661893844604, "answer_score": 0.4753906667232513, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "KOC-2026-05-0043-Q004", "text": "Aft and forward perpendicular?", "family": "SOLAS", "subtopic": "Bow / Stem / Breast Hook", "tid": "KOC-2026-05-0043", "tray": "new", "candidates": [ { "answer_id": "CYL-LINER-P02-004", "score": 0.5776488780975342, "sibling_score": 0.5776488780975342, "answer_score": null, "sibling_qid": "KOL-2021-12-1647-Q002", "sibling_text": "liner oval in fwd and aft direction reason", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L4 · T044-PART_02-G004High", "cross_family": true }, { "answer_id": "LL-CONV-P06-004", "score": 0.5773688554763794, "sibling_score": 0.5773688554763794, "answer_score": null, "sibling_qid": "CHE-2025-12-0091-Q001", "sibling_text": "eta aft and fwd reg", "sibling_family": "", "via": "sibling", "answer_title": "LLC-P06-04 - General load-line requirement, marks, stability link and overloading consequences", "cross_family": false }, { "answer_id": "BSBH-420-002", "score": 0.5617641806602478, "sibling_score": 0.5617641806602478, "answer_score": 0.41979197412729263, "sibling_qid": "MUM-2026-02-0761-Q009", "sibling_text": "fore end construction", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Fore-end / forepeak construction forward of the collision bulkhead — members and cross-section", "cross_family": false } ] }, { "qid": "KOC-2026-05-0044-Q008S2", "text": "⁠ Internal - what all things are there in lifeboat?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Lifeboat Static / Dynamic Test", "tid": "KOC-2026-05-0044", "tray": "new", "candidates": [ { "answer_id": "LSA-LB-A-002", "score": 0.6348440051078796, "sibling_score": 0.6348440051078796, "answer_score": 0.41333110481500623, "sibling_qid": "KOC-2025-01-0519-Q011", "sibling_text": "types lifeboat onboard", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Types of lifeboat — and which type on your ship", "cross_family": false }, { "answer_id": "LRHR-A-004", "score": 0.6249118447303772, "sibling_score": 0.6249118447303772, "answer_score": null, "sibling_qid": "KOL-2025-07-0996-Q004", "sibling_text": "life raft equipment s inside", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Liferaft equipment as per SOLAS — the A pack and the B pack", "cross_family": false }, { "answer_id": "LB-SURV-C-003", "score": 0.6135726571083069, "sibling_score": 0.6135726571083069, "answer_score": null, "sibling_qid": "MUM-2022-07-0016-Q008", "sibling_text": "life boat all maintainance", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Routine maintenance ladder — weekly / monthly / quarterly / 6-monthly onboard checks", "cross_family": false } ] }, { "qid": "KOC-2026-05-0045-Q001", "text": "Type of main engine Type of ship?", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "KOC-2026-05-0045", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8112114071846008, "sibling_score": 0.8112114071846008, "answer_score": null, "sibling_qid": "MUM-2026-09-3882-Q001", "sibling_text": "introduction types of ship main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.8090561628341675, "sibling_score": 0.8090561628341675, "answer_score": null, "sibling_qid": "MUM-2026-07-3668-Q004", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "CTRL-TL-002", "score": 0.754169225692749, "sibling_score": 0.754169225692749, "answer_score": null, "sibling_qid": "MUM-2026-03-1988-Q001", "sibling_text": "type of main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Function of a controller, and types used on board", "cross_family": false } ] }, { "qid": "KOC-2026-05-0045-Q004", "text": "Working of ME engine?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE vs ME Differences", "tid": "KOC-2026-05-0045", "tray": "new", "candidates": [ { "answer_id": "MCC-MEB-P02-003", "score": 0.6069280505180359, "sibling_score": 0.6069280505180359, "answer_score": null, "sibling_qid": "MUM-2024-07-1084-Q004", "sibling_text": "me engine tha", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Conventional MC / MC-C versus electronic ME — the practical operating differences", "cross_family": true }, { "answer_id": "MEB-MEC-P03-002", "score": 0.6017995476722717, "sibling_score": 0.6017995476722717, "answer_score": null, "sibling_qid": "MUM-2023-07-1051-Q002", "sibling_text": "how me engine works", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "ME camless control architecture — ECS, CCU, EICU, MPC", "cross_family": true }, { "answer_id": "ETP-344-P03-010", "score": 0.588966429233551, "sibling_score": 0.588966429233551, "answer_score": 0.36991612911224364, "sibling_qid": "CHE-2025-08-0426-Q013", "sibling_text": "function test on me engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Function tests on the main engine (ME electronic engine)", "cross_family": true } ] }, { "qid": "KOC-2026-05-0046-Q001", "text": "Written and Oral attempts?", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOC-2026-05-0046", "tray": "new", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.6344548463821411, "sibling_score": 0.6344548463821411, "answer_score": null, "sibling_qid": "MUM-2026-03-1294-Q001", "sibling_text": "status of writtens and orals", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": false }, { "answer_id": "NDT-METH-P01-001", "score": 0.4413844048976898, "sibling_score": 0.4413844048976898, "answer_score": null, "sibling_qid": "MUM-2026-03-2946-Q006", "sibling_text": "the best thing you can do is figure out which exams you can appear for whether single subjects pairs or all together it depends on your will and capability for me i appeared in pairs 2 writtens and 1 oral because i knew my capability it differs for everyone many attempt all 6 together as per my knowledge few pass all 6 some pass 4 5 some pass 1 3 and some failed all", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "NDT methods, NDT vs destructive testing, and onboard use", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.395383358001709, "sibling_score": 0.395383358001709, "answer_score": null, "sibling_qid": "MUM-2026-05-2995-Q001", "sibling_text": "written and oral status type of ship and company", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": true } ] }, { "qid": "KOC-2026-05-0046-Q003", "text": "Generator worked on?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE 4-Stroke Theory", "tid": "KOC-2026-05-0046", "tray": "new", "candidates": [ { "answer_id": "AEDEC-291-003", "score": 0.6374495029449463, "sibling_score": 0.6374495029449463, "answer_score": null, "sibling_qid": "MUM-2026-06-3491-Q006", "sibling_text": "generator tripped checks before starting", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "3. Pre-start checks after decarb / recommissioning", "cross_family": false }, { "answer_id": "ALT-GEN-P02-001", "score": 0.6017509698867798, "sibling_score": 0.6017509698867798, "answer_score": null, "sibling_qid": "KOC-2022-12-0121-Q002", "sibling_text": "generator spec", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Alternator/generator specifications, ratings and ship electrical supply details", "cross_family": true }, { "answer_id": "COT-P02-09", "score": 0.5842781066894531, "sibling_score": 0.5842781066894531, "answer_score": null, "sibling_qid": "MUM-2025-09-0443-Q005", "sibling_text": "n2 generator working", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Explain why nitrogen is used on chemical tankers and describe the nitrogen generator, product-gas composition, oxygen removal and principal alarms/trips.", "cross_family": true } ] }, { "qid": "KOC-2026-05-0046-Q007", "text": "Vernier least count. derive?", "family": "Workshop & Measurement", "subtopic": "Vernier Caliper Least Count", "tid": "KOC-2026-05-0046", "tray": "new", "candidates": [ { "answer_id": "MICR-003", "score": 0.46662482619285583, "sibling_score": 0.46662482619285583, "answer_score": null, "sibling_qid": "KOL-2024-09-3711-Q010", "sibling_text": "q2 least count of inside micromere how wil u take 150 mm bore liner how maney scale in inside micrometer", "sibling_family": "Gauges & Tools", "via": "sibling", "answer_title": "Cylinder liner calibration with the inside micrometer", "cross_family": true }, { "answer_id": "MICR-001", "score": 0.44428372383117676, "sibling_score": 0.44428372383117676, "answer_score": 0.3964018732309341, "sibling_qid": "KOL-2016-05-2987-Q001", "sibling_text": "least count", "sibling_family": "Gauges & Tools", "via": "sibling", "answer_title": "Micrometer least count and reading principle", "cross_family": true }, { "answer_id": "MICR-002", "score": 0.43777239322662354, "sibling_score": 0.43777239322662354, "answer_score": 0.33172070533037185, "sibling_qid": "KOL-2026-09-4306-Q004", "sibling_text": "zero setting of micro meter and how micro meter rotates", "sibling_family": "Workshop & Measurement", "via": "sibling", "answer_title": "Zero setting, calibration, error check and trueness", "cross_family": false } ] }, { "qid": "KOC-2026-05-0046-Q008", "text": "AE LO circuit draw and explain?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE 4-Stroke Theory", "tid": "KOC-2026-05-0046", "tray": "new", "candidates": [ { "answer_id": "TCAP-B-004", "score": 0.48953425884246826, "sibling_score": 0.48953425884246826, "answer_score": 0.3825289189815521, "sibling_qid": "KOC-2021-09-1148-Q010", "sibling_text": "draw amplifier circuit", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Draw and explain a transistor amplifier circuit", "cross_family": true }, { "answer_id": "ELEC-ELX-015", "score": 0.47434982657432556, "sibling_score": 0.47434982657432556, "answer_score": null, "sibling_qid": "KOC-2025-03-0570-Q002", "sibling_text": "explain one electronic circuit", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Explain one electronic circuit — bridge-rectifier supply", "cross_family": true }, { "answer_id": "LT-SRC-009", "score": 0.46922439336776733, "sibling_score": 0.46922439336776733, "answer_score": 0.3829526722431183, "sibling_qid": "KOC-2026-09-2204-Q006", "sibling_text": "navigational light circuit draw and explain", "sibling_family": "Electrical - Distribution & MSB", "via": "sibling", "answer_title": "Draw and explain the nav-light circuit, fault indication and fuse-failure alarm", "cross_family": true } ] }, { "qid": "KOC-2026-05-0047-Q005", "text": "Boiler safety valve setting procedure?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2026-05-0047", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-001", "score": 0.8563537001609802, "sibling_score": 0.8563537001609802, "answer_score": null, "sibling_qid": "KOC-2026-05-0003-Q005", "sibling_text": "boiler safety valve setting procedure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.823998749256134, "sibling_score": 0.823998749256134, "answer_score": null, "sibling_qid": "MUM-2026-03-2935-Q013", "sibling_text": "boiler safety valve setting in presence of surveyor after survey", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.8081170320510864, "sibling_score": 0.8081170320510864, "answer_score": null, "sibling_qid": "KOC-2026-05-0034-Q010", "sibling_text": "boiler safety valve types and how safety valve is set complete procedures", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOC-2026-05-0048-Q008", "text": "What is deep tank?", "family": "Cargo Ops - Tankers", "subtopic": "Cargo Tank Construction", "tid": "KOC-2026-05-0048", "tray": "new", "candidates": [ { "answer_id": "BC-HOPPER-G-001", "score": 0.5074554681777954, "sibling_score": 0.5074554681777954, "answer_score": 0.3611033380031586, "sibling_qid": "KOL-2017-03-0077-Q002", "sibling_text": "functions of deep tank upper hopper tanks", "sibling_family": "", "via": "sibling", "answer_title": "Hopper and topside tanks — what they are and their purpose", "cross_family": false }, { "answer_id": "LTK-386-001", "score": 0.4896685779094696, "sibling_score": 0.4896685779094696, "answer_score": null, "sibling_qid": "KOL-2020-02-0389-Q001", "sibling_text": "center tank definition", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Explain the general layout of tanks on a tanker", "cross_family": false }, { "answer_id": "COT-09", "score": 0.48225635290145874, "sibling_score": 0.48225635290145874, "answer_score": null, "sibling_qid": "MUM-2026-09-3920-Q005", "sibling_text": "double bottom tank construction and it s info in stability book", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Ballast-tank construction", "cross_family": false } ] }, { "qid": "KOC-2026-05-0050-Q001", "text": "HPS line diagram?", "family": "Boilers - Construction & Components", "subtopic": "Boiler Capacity / Rating", "tid": "KOC-2026-05-0050", "tray": "new", "candidates": [ { "answer_id": "OWS-15PPM-004", "score": 0.5191764831542969, "sibling_score": 0.5191764831542969, "answer_score": null, "sibling_qid": "MUM-2022-08-0034-Q002", "sibling_text": "draw line diagram", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": true }, { "answer_id": "LLC-P05-001", "score": 0.48088544607162476, "sibling_score": 0.48088544607162476, "answer_score": null, "sibling_qid": "KOC-2024-08-0391-Q002", "sibling_text": "draw load line diagram", "sibling_family": "", "via": "sibling", "answer_title": "Freeboard, deck line, Plimsoll mark, assignment and scantling draft", "cross_family": false }, { "answer_id": "IND-CARD-A-001", "score": 0.46295496821403503, "sibling_score": 0.46295496821403503, "answer_score": null, "sibling_qid": "KOC-2021-05-2022-Q019", "sibling_text": "indicator diagrams draw and explain", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Reading the power / draw card — what it tells you", "cross_family": true } ] }, { "qid": "KOC-2026-05-2124-Q006", "text": "How rudder is connected to rudder carrier bearing ?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOC-2026-05-2124", "tray": "review", "candidates": [ { "answer_id": "TRS-002", "score": 0.7755123972892761, "sibling_score": 0.7755123972892761, "answer_score": null, "sibling_qid": "KOC-2026-05-0004-Q005", "sibling_text": "how rudder is connected to rudder carrier bearing", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "PRE-TEN-001", "score": 0.6842538714408875, "sibling_score": 0.6842538714408875, "answer_score": null, "sibling_qid": "MUM-2026-06-3504-Q007", "sibling_text": "rudder carrier bearing removal procedure", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Pre-stressing and pre-tensioning in main-engine bolting", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.68256014585495, "sibling_score": 0.68256014585495, "answer_score": null, "sibling_qid": "CHE-2026-02-0110-Q006", "sibling_text": "how rudder weight is carried key ans i said carrier bearing how it carrying explain", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false } ] }, { "qid": "KOC-2026-05-2124-Q009", "text": "Boiler blow back reason and action ?", "family": "Boilers - Operations & Firing", "subtopic": "Burner / Firing / Soot Blow", "tid": "KOC-2026-05-2124", "tray": "review", "candidates": [ { "answer_id": "BBF-621-002", "score": 0.8278350234031677, "sibling_score": 0.8278350234031677, "answer_score": 0.496026599407196, "sibling_qid": "KOC-2026-05-0004-Q007", "sibling_text": "boiler blow back reason and action", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Backfire has occurred on the oil-fired boiler. What are your actions as 2/E, and what instructions do you give the junior engineer or watchkeeper?", "cross_family": false }, { "answer_id": "BBF-621-001", "score": 0.7899904847145081, "sibling_score": 0.7899904847145081, "answer_score": 0.551376810669899, "sibling_qid": "MUM-2026-09-3936-Q006", "sibling_text": "boiler blow back reason", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "What is boiler backfire / blowback? Explain the furnace event, the reasons, and how you prevent it.", "cross_family": false }, { "answer_id": "BFS-257-006", "score": 0.741157591342926, "sibling_score": 0.741157591342926, "answer_score": 0.5826967060565948, "sibling_qid": "CHE-2026-02-0483-Q001", "sibling_text": "boiler blow back", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler backfire / blowback / panting — causes, prevention, actions", "cross_family": false } ] }, { "qid": "KOC-2026-05-2124-Q011", "text": "Sweep test, (why...values??)", "family": "NDT & Material Testing", "subtopic": "Sweep Test", "tid": "KOC-2026-05-2124", "tray": "new", "candidates": [ { "answer_id": "IRT-C-006", "score": 0.4183769226074219, "sibling_score": 0.4183769226074219, "answer_score": null, "sibling_qid": "KOL-2025-01-2762-Q001", "sibling_text": "ir test values", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Acceptable IR values, the minimum & \"what if it's low\"", "cross_family": true }, { "answer_id": "IMP-CHARPY-001", "score": 0.406234472990036, "sibling_score": 0.406234472990036, "answer_score": null, "sibling_qid": "MUM-2026-07-3737-Q010", "sibling_text": "impact test why we do impact test", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "What is an impact test, and what is its purpose or significance?", "cross_family": false }, { "answer_id": "RES-PROP-P02-001", "score": 0.40479275584220886, "sibling_score": 0.40479275584220886, "answer_score": null, "sibling_qid": "KOL-2021-07-0531-Q005", "sibling_text": "model test why", "sibling_family": "", "via": "sibling", "answer_title": "Ship model and towing tests — purpose, scaling and resistance prediction", "cross_family": false } ] }, { "qid": "KOC-2026-05-2124-Q013", "text": "At what temp carbon will fire ?", "family": "Boilers - Construction & Components", "subtopic": "Economiser", "tid": "KOC-2026-05-2124", "tray": "review", "candidates": [ { "answer_id": "ECON-EGB-005", "score": 0.7573732733726501, "sibling_score": 0.7573732733726501, "answer_score": null, "sibling_qid": "KOC-2026-05-0004-Q009", "sibling_text": "egb soot fire cross what temp carbon will fire", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Cleaning, choking & soot-fire prevention / indication / temperature", "cross_family": false }, { "answer_id": "SIH-FIRE-003", "score": 0.5509178638458252, "sibling_score": 0.5509178638458252, "answer_score": null, "sibling_qid": "KOL-2017-08-1322-Q005", "sibling_text": "iron fire dont tell me the temp tell the chemical reactions", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Iron fire — what are the chemical reactions involved?", "cross_family": true }, { "answer_id": "SIH-FIRE-002", "score": 0.518344521522522, "sibling_score": 0.518344521522522, "answer_score": 0.46639198958873745, "sibling_qid": "MUM-2026-02-2577-Q002", "sibling_text": "egb fire and indications hydrogen fire and metal fire he was more interested in temperature ranges", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Explain soot fire, hydrogen fire and iron/metal fire in a boiler / EGB, with the temperature ranges", "cross_family": true } ] }, { "qid": "KOC-2026-05-2126-Q007", "text": " what would be main engine rpm/load while EGB safety valve setting ?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2026-05-2126", "tray": "new", "candidates": [ { "answer_id": "MCR-NOR-003", "score": 0.5932385325431824, "sibling_score": 0.5932385325431824, "answer_score": null, "sibling_qid": "KOC-2024-10-2054-Q008", "sibling_text": "which condition will run main engine in mcr rpm", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "In what conditions may the main engine be run up to MCR, or beyond it?", "cross_family": true }, { "answer_id": "BWTEST-A-001", "score": 0.581745982170105, "sibling_score": 0.581745982170105, "answer_score": null, "sibling_qid": "KOC-2026-05-2126-Q006", "sibling_text": "egb safety valve setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "TC-CS-P01-011", "score": 0.5607528686523438, "sibling_score": 0.5607528686523438, "answer_score": null, "sibling_qid": "KOC-2021-08-1765-Q010", "sibling_text": "main engine t c rpm value", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "K·Turbocharger rpm — typical values", "cross_family": true } ] }, { "qid": "KOC-2026-05-2127-Q001", "text": "Type of ship and engine ?", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "KOC-2026-05-2127", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.833528459072113, "sibling_score": 0.833528459072113, "answer_score": null, "sibling_qid": "MUM-2025-08-2357-Q001", "sibling_text": "type of ship type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.8273106813430786, "sibling_score": 0.8273106813430786, "answer_score": null, "sibling_qid": "MUM-2026-07-3668-Q004", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.762029230594635, "sibling_score": 0.762029230594635, "answer_score": null, "sibling_qid": "KOL-2025-12-2031-Q002", "sibling_text": "type of ship and engine sailed engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "KOC-2026-05-2127-Q002", "text": "MCR of engine explain ?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOC-2026-05-2127", "tray": "new", "candidates": [ { "answer_id": "MCC-MEB-P02-002", "score": 0.5654134750366211, "sibling_score": 0.5654134750366211, "answer_score": null, "sibling_qid": "KOL-2020-09-1544-Q001", "sibling_text": "which engine mc c explain others engines in market tell and explain", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "MAN B&W nomenclature — and what MC, MC-C, ME-B, ME-C actually mean", "cross_family": true }, { "answer_id": "EGTP-P02-005", "score": 0.5550463199615479, "sibling_score": 0.5550463199615479, "answer_score": 0.3893856257200241, "sibling_qid": "MUM-2026-06-3500-Q002", "sibling_text": "mc vs me engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "MC / MC-C / ME-C and Electronically Controlled Engines", "cross_family": false }, { "answer_id": "ALT-MTN-B-001", "score": 0.5542924404144287, "sibling_score": 0.5542924404144287, "answer_score": null, "sibling_qid": "MUM-2026-02-1281-Q001", "sibling_text": "main engine specification mc c", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Routine onboard alternator maintenance checks", "cross_family": false } ] }, { "qid": "KOC-2026-05-2127-Q004", "text": "VIT difference in ME and MC ?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "VIT Mechanism", "tid": "KOC-2026-05-2127", "tray": "new", "candidates": [ { "answer_id": "EGTP-P02-005", "score": 0.5060744285583496, "sibling_score": 0.5060744285583496, "answer_score": null, "sibling_qid": "MUM-2022-10-2713-Q002", "sibling_text": "mc and me difference", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "MC / MC-C / ME-C and Electronically Controlled Engines", "cross_family": true }, { "answer_id": "VIT-MECH-C-001", "score": 0.5060483813285828, "sibling_score": 0.5060483813285828, "answer_score": null, "sibling_qid": "KOL-2019-07-1872-Q004", "sibling_text": "vit in mc engines draw vit curve", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "MAN B&W MC VIT — varying the start of injection on a helix pump", "cross_family": false }, { "answer_id": "VIT-MECH-D-001", "score": 0.5041421055793762, "sibling_score": 0.5041421055793762, "answer_score": null, "sibling_qid": "CHE-2025-10-0448-Q005", "sibling_text": "mcc latest system is vit or super vit", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Super-VIT — construction and working (double-thread / upper-lower thread)", "cross_family": false } ] }, { "qid": "KOC-2026-05-2127-Q005", "text": "Use of disk stack in purifier ?", "family": "Purifier & Centrifuges", "subtopic": "Purifier Operation / Bowl", "tid": "KOC-2026-05-2127", "tray": "new", "candidates": [ { "answer_id": "PUR-BOWL-P03-FINAL-1-001", "score": 0.6252198815345764, "sibling_score": 0.6252198815345764, "answer_score": 0.41480236053466796, "sibling_qid": "CHE-2026-05-0605-Q004", "sibling_text": "purifier disc stack", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "1. Disc Stack, Separation Zone and What the Purifier Removes", "cross_family": false }, { "answer_id": "PARD-330-003", "score": 0.4907517731189728, "sibling_score": 0.4907517731189728, "answer_score": null, "sibling_qid": "MUM-2026-06-3416-Q008", "sibling_text": "pairing disc function in purifier", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "How does the paring disc work, and on what principle does it operate?", "cross_family": false }, { "answer_id": "PARD-330-004", "score": 0.4804569482803345, "sibling_score": 0.4804569482803345, "answer_score": 0.30464016646146774, "sibling_qid": "CHE-2026-05-0578-Q005", "sibling_text": "purifer gravity disk selection and paring disk purpose", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "What is the purpose of the paring disc — why does the purifier need it at all?", "cross_family": false } ] }, { "qid": "KOC-2026-05-2127-Q006", "text": "EGB safety valve pr setting is more than boiler why? How much set pressure onboard?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2026-05-2127", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-001", "score": 0.7240727543830872, "sibling_score": 0.7240727543830872, "answer_score": null, "sibling_qid": "CHE-2026-09-3931-Q006", "sibling_text": "boiler safety valve pressure setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-003", "score": 0.7231667637825012, "sibling_score": 0.7231667637825012, "answer_score": null, "sibling_qid": "KOL-2016-08-1232-Q002", "sibling_text": "why boiler accumulation pressure higher than safety vv pressure when it is tested how boiler pr can go this much even if safety vv is thr", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "The accumulation test and the safety valve — required lift, how lift and capacity are verified, and why accumulation must stay inside the limit", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.7059167623519897, "sibling_score": 0.7059167623519897, "answer_score": null, "sibling_qid": "CHE-2026-09-3919-Q009", "sibling_text": "boiler safety valve setting in front of surveyor first and second safety valve pressure difference", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false } ] }, { "qid": "KOC-2026-05-2127-Q007", "text": "Why to Run EGB circulating pump for 12 hrs after stopping engine? ", "family": "Turbocharger", "subtopic": "Turbocharger Construction & Surging", "tid": "KOC-2026-05-2127", "tray": "new", "candidates": [ { "answer_id": "PCD-P03-01", "score": 0.4863966405391693, "sibling_score": 0.4863966405391693, "answer_score": null, "sibling_qid": "KOC-2025-10-1957-Q018", "sibling_text": "why overhauling pump", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Centrifugal pump overhaul — procedure, checks, clearances and survey evidence", "cross_family": true }, { "answer_id": "CPFE-583-010", "score": 0.47720205783843994, "sibling_score": 0.47720205783843994, "answer_score": null, "sibling_qid": "MUM-2025-07-1555-Q006", "sibling_text": "why we keep hydraulic pump running in cargo system", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "The hydraulic circuit — feed pump, HP and LP lines, filters", "cross_family": true }, { "answer_id": "PCD-P01-06", "score": 0.47044193744659424, "sibling_score": 0.47044193744659424, "answer_score": null, "sibling_qid": "MUM-2023-11-2204-Q001", "sibling_text": "1ballast pump running from 4hours and now it is vibrating action as a 2nd eng", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Centrifugal pump — reasons for performance drop, low efficiency, vibration, and still-poor-after-overhaul", "cross_family": true } ] }, { "qid": "KOC-2026-05-2127-Q008", "text": "Type of ship and engine?", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "KOC-2026-05-2127", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8335285186767578, "sibling_score": 0.8335285186767578, "answer_score": null, "sibling_qid": "MUM-2025-08-2357-Q001", "sibling_text": "type of ship type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.8273107409477234, "sibling_score": 0.8273107409477234, "answer_score": null, "sibling_qid": "MUM-2026-07-3668-Q004", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7620292901992798, "sibling_score": 0.7620292901992798, "answer_score": null, "sibling_qid": "KOL-2025-12-2031-Q002", "sibling_text": "type of ship and engine sailed engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "KOC-2026-05-2127-Q010", "text": "Control air circuit explain?", "family": "Electrical - Motors & Starters", "subtopic": "Star-Delta Starter", "tid": "KOC-2026-05-2127", "tray": "new", "candidates": [ { "answer_id": "MAC-598-002", "score": 0.6291111707687378, "sibling_score": 0.6291111707687378, "answer_score": 0.4571538746356964, "sibling_qid": "MUM-2026-01-1867-Q002", "sibling_text": "main air comp ckt which are the 2 ckt here power ckt and control ckt", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "The main air compressor circuit — power and control circuits, starting, and electrical safeties in the compressor room", "cross_family": true }, { "answer_id": "CTRL-TL-002", "score": 0.6094734072685242, "sibling_score": 0.6094734072685242, "answer_score": null, "sibling_qid": "MUM-2026-05-3336-Q005", "sibling_text": "control circuit", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Function of a controller, and types used on board", "cross_family": false }, { "answer_id": "SAV-005", "score": 0.5849194526672363, "sibling_score": 0.5849194526672363, "answer_score": null, "sibling_qid": "KOL-2018-03-1358-Q002", "sibling_text": "starting air line full description control air pressure and main pressure", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "How air is admitted, and faults that stop starting air admission", "cross_family": true } ] }, { "qid": "KOC-2026-05-2127-Q013", "text": "How in modern engine?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOC-2026-05-2127", "tray": "new", "candidates": [ { "answer_id": "MIP-264-003", "score": 0.5206577777862549, "sibling_score": 0.5206577777862549, "answer_score": null, "sibling_qid": "KOL-2021-12-1651-Q007", "sibling_text": "engine how", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Calculate engine power: IHP and BHP, and where each is measured", "cross_family": true }, { "answer_id": "ETP-344-P03-001", "score": 0.4948968291282654, "sibling_score": 0.4948968291282654, "answer_score": null, "sibling_qid": "KOC-2026-05-0045-Q002", "sibling_text": "whether done me engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "EGTP-P02-005", "score": 0.4827299416065216, "sibling_score": 0.4827299416065216, "answer_score": 0.33307102620601653, "sibling_qid": "CHE-2026-09-3915-Q001", "sibling_text": "have you studied both mc and me engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "MC / MC-C / ME-C and Electronically Controlled Engines", "cross_family": false } ] }, { "qid": "KOC-2026-05-2128-Q004", "text": "local fighting system, hyper mist explain ? working?", "family": "SOLAS - Fire Safety", "subtopic": "Sprinkler / Water Mist / Hi-Fog", "tid": "KOC-2026-05-2128", "tray": "new", "candidates": [ { "answer_id": "FIRE-P01-02", "score": 0.5422372221946716, "sibling_score": 0.5422372221946716, "answer_score": null, "sibling_qid": "KOC-2025-01-0526-Q002", "sibling_text": "hypermist drawing how local operation", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist — automatic and manual activation, detector logic, and backup supply", "cross_family": false }, { "answer_id": "FIRE-P01-01", "score": 0.5174218416213989, "sibling_score": 0.5174218416213989, "answer_score": 0.2389448583126068, "sibling_qid": "MUM-2026-06-3586-Q002", "sibling_text": "hyper mist working", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist / water-mist system — draw and explain the machinery-space arrangement and normal working", "cross_family": false }, { "answer_id": "FIRE-P01-03", "score": 0.3239056646823883, "sibling_score": null, "answer_score": 0.3239056646823883, "sibling_qid": "", "sibling_text": "hypermist how the mist is formed and how it extinguishes fire four suppression mechanisms 1 cooling of the gas phase flame and hot surfaces by strong latent heat absorption as droplets evaporate 2 local dilution of oxygen available to combustion in the flame zone as water vapour is generated 3 attenuation of radiant heat back to the fuel by the droplet cloud reducing pyrolysis and 4 wetting and co", "sibling_family": "", "via": "answer_title", "answer_title": "Hypermist — how the mist is formed and how it extinguishes fire", "cross_family": false } ] }, { "qid": "KOC-2026-05-2128-Q007", "text": "ISM chapter 10 explain?", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOC-2026-05-2128", "tray": "new", "candidates": [ { "answer_id": "ISM-ELEM-003", "score": 0.5716122984886169, "sibling_score": 0.5716122984886169, "answer_score": 0.36712386161088945, "sibling_qid": "KOC-2026-02-0804-Q014", "sibling_text": "what is ism code 10", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": false }, { "answer_id": "ISM-AUD-P02-002", "score": 0.46198368072509766, "sibling_score": 0.46198368072509766, "answer_score": null, "sibling_qid": "KOL-2019-02-3209-Q005", "sibling_text": "ism chapters specifically how many numbers", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM Code — what it is, purpose, objectives and structure", "cross_family": false }, { "answer_id": "ISM-ELEM-002", "score": 0.43957048654556274, "sibling_score": 0.43957048654556274, "answer_score": null, "sibling_qid": "KOC-2026-03-0885-Q010", "sibling_text": "explain ism code", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the ISM Code?", "cross_family": false } ] }, { "qid": "KOC-2026-05-2129-Q001", "text": "Written and Oral attempts Company and ", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOC-2026-05-2129", "tray": "new", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.5231230854988098, "sibling_score": 0.5231230854988098, "answer_score": null, "sibling_qid": "MUM-2026-03-1294-Q001", "sibling_text": "status of writtens and orals", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.48169320821762085, "sibling_score": 0.48169320821762085, "answer_score": null, "sibling_qid": "KOC-2026-08-2106-Q001", "sibling_text": "status of written oral company type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": true }, { "answer_id": "JOIN-HDVR-002", "score": 0.34671857953071594, "sibling_score": 0.34671857953071594, "answer_score": null, "sibling_qid": "KOL-2016-11-0027-Q004", "sibling_text": "he wants to listen ki wat all u sign after joining like manuals wen u join onboard policy documents and all manuals basically all sms related books in many companies this thing is still followed", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "After joining — the familiarisation checklist and the SMS documents you sign", "cross_family": true } ] }, { "qid": "KOC-2026-05-2129-Q005", "text": "Loading diagram of engine ?", "family": "2-Stroke - Reversing & Maneuvering", "subtopic": "EICU / Manoeuvring System", "tid": "KOC-2026-05-2129", "tray": "review", "candidates": [ { "answer_id": "PERF-CRV-002", "score": 0.6918202042579651, "sibling_score": 0.6918202042579651, "answer_score": 0.44498981535434723, "sibling_qid": "MUM-2026-09-3862-Q003", "sibling_text": "engine load diagram", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Engine load diagram, fair (performance) curve and deviation from the standard line", "cross_family": false }, { "answer_id": "EICU-MAN-P02-001", "score": 0.6387844681739807, "sibling_score": 0.6387844681739807, "answer_score": null, "sibling_qid": "KOC-2026-04-1125-Q005", "sibling_text": "draw any one manouvering diagram i have drawn mc engine", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "MC / MC-C conventional manoeuvring system — handle, microswitches, block valves, reversing servomotor", "cross_family": false }, { "answer_id": "EICU-MAN-P01-002", "score": 0.623090922832489, "sibling_score": 0.623090922832489, "answer_score": null, "sibling_qid": "KOC-2021-05-0936-Q002", "sibling_text": "me engine maneuvering diagram", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "ME / ME-C / ME-B manoeuvring system — diagram and explanation", "cross_family": false } ] }, { "qid": "KOC-2026-05-2129-Q007", "text": "Boiler capacity in your engine, Boiler water tests only name, Screen tube and generating tube , where is the location in your ship?", "family": "Boilers - Safety & Survey", "subtopic": "Water Test (Chloride / pH / Phosphate)", "tid": "KOC-2026-05-2129", "tray": "review", "candidates": [ { "answer_id": "BLR-TUBE-P01-001", "score": 0.6845130324363708, "sibling_score": 0.6845130324363708, "answer_score": null, "sibling_qid": "CHE-2026-05-0541-Q005S3", "sibling_text": "boiler parts inside asking about tubes and purpose of each", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "01. Attaching, fitting and supporting boiler tubes", "cross_family": false }, { "answer_id": "BWTEST-A-002", "score": 0.6756160259246826, "sibling_score": 0.6756160259246826, "answer_score": null, "sibling_qid": "NOI-2026-09-0019-Q003", "sibling_text": "boiler mountings and water tests carried out", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What does high boiler-water chloride, salinity or TDS indicate, and what action is required?", "cross_family": false }, { "answer_id": "BLR-SURV-P02-004", "score": 0.6727957129478455, "sibling_score": 0.6727957129478455, "answer_score": null, "sibling_qid": "MUM-2026-06-3564-Q002", "sibling_text": "tests on boiler structure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOC-2026-05-2129-Q010", "text": " connecting rod checks ?(told about trueness test connecting rod using mandrel )", "family": "", "subtopic": "", "tid": "KOC-2026-05-2129", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-004", "score": 0.6893513798713684, "sibling_score": 0.6893513798713684, "answer_score": 0.5981023460626602, "sibling_qid": "KOC-2021-12-1771-Q004", "sibling_text": "connecting rod checks bend test when you explain you have to remember to say to remove nozzle which is cooling the underside of the piston insert the mandrel and rotate ovality oblique cut type don t say to tk inside micrometer method he only accepts contact surface testing method conrod bolts replaced after maker recommended running hours scrapped", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE connecting-rod inspection — ovality, trueness, serrations, action if out of limit", "cross_family": false }, { "answer_id": "AECR-651-001", "score": 0.665709376335144, "sibling_score": 0.665709376335144, "answer_score": 0.5369955956935882, "sibling_qid": "KOL-2022-10-3579-Q003", "sibling_text": "ae connecting rod inspection trueness check", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What checks do you carry out on the connecting rod of an AE / DG — inspection, overhaul checks and the trueness check?", "cross_family": false }, { "answer_id": "CRB-001", "score": 0.6633039116859436, "sibling_score": 0.6633039116859436, "answer_score": 0.5201917827129364, "sibling_qid": "KOL-2022-01-3512-Q004", "sibling_text": "connecting rod trueness how to check", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What checks are carried out on the connecting rod at decarbonisation? Explain the ovality and trueness checks — how many readings, at which positions, with what instrument, and the permissible limit.", "cross_family": false } ] }, { "qid": "KOC-2026-05-2129-Q014", "text": "Max pressure in your engine told 140-150bar?", "family": "2-Stroke - Components (Other)", "subtopic": "", "tid": "KOC-2026-05-2129", "tray": "review", "candidates": [ { "answer_id": "PMAX-PCOMP-BF041-003", "score": 0.6631386280059814, "sibling_score": 0.6631386280059814, "answer_score": null, "sibling_qid": "KOC-2024-10-1012-Q010", "sibling_text": "me compression pressure and peak pressure of your engine 120 bar and 160 bar difference should not be more than 40 bar", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Pcomp and Pmax — the difference, the values you would expect, and what you do if either is low or high", "cross_family": true }, { "answer_id": "PIST-CSI-C-002", "score": 0.6432710289955139, "sibling_score": 0.6432710289955139, "answer_score": null, "sibling_qid": "KOC-2021-05-1758-Q001", "sibling_text": "piston pressure testing y at 7 bar y not 3 or 4 bar", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston pressure / hydraulic leak testing after overhaul", "cross_family": false }, { "answer_id": "FPP-049-001", "score": 0.6292902827262878, "sibling_score": 0.6292902827262878, "answer_score": null, "sibling_qid": "MUM-2023-10-1064-Q003", "sibling_text": "fuel pp pressure plz answer 900bar", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "What pressure is developed at the fuel pump, and at injection?", "cross_family": true } ] }, { "qid": "KOC-2026-05-2130-Q003", "text": "Why no Aux Blowers to AE?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE TURBOCHARGER", "tid": "KOC-2026-05-2130", "tray": "new", "candidates": [ { "answer_id": "CPP-SGX-02", "score": 0.504010021686554, "sibling_score": 0.504010021686554, "answer_score": 0.44906162619590756, "sibling_qid": "KOL-2019-10-1492-Q013", "sibling_text": "why we require auxiliary blower on main engine and not on auxiliary engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main-engine auxiliary blowers", "cross_family": true }, { "answer_id": "COT-P02-06", "score": 0.4584570825099945, "sibling_score": 0.4584570825099945, "answer_score": null, "sibling_qid": "MUM-2026-02-0791-Q012", "sibling_text": "backup of blower if fails", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Explain the inert-gas blower arrangement, required capacity, pressure control, redundancy and safeguards.", "cross_family": true }, { "answer_id": "TURBO-CS-P03-018", "score": 0.4423956573009491, "sibling_score": 0.4423956573009491, "answer_score": null, "sibling_qid": "KOL-2023-11-3655-Q004", "sibling_text": "what will you do if your engine has only 1 t c and it has to be taken out of operation why do you need to remove compensating bellows from compressor discharge outlet from where does aux blower take suction", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Running with the only / all turbocharger(s) out of action", "cross_family": true } ] }, { "qid": "KOC-2026-05-2130-Q004", "text": "Resilient and Resin Chocks?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE Resilient Chock", "tid": "KOC-2026-05-2130", "tray": "new", "candidates": [ { "answer_id": "BED-CHOCK-006", "score": 0.5536226034164429, "sibling_score": 0.5536226034164429, "answer_score": 0.4235951900482178, "sibling_qid": "MUM-2025-11-2876-Q007", "sibling_text": "types of chocks epoxy resin and cast iron chocks", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What types of main-engine chocks are there — epoxy/resin, cast-iron, rubber — and why each?", "cross_family": true }, { "answer_id": "CHK-RM-002", "score": 0.5084283351898193, "sibling_score": 0.5084283351898193, "answer_score": null, "sibling_qid": "KOL-2021-09-3456-Q005", "sibling_text": "what are the different types of foundation chocks in main engine how are resin chocks built in place and advantages", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Explain resin chocking — what it is, how it is done, and how resin chocks are cast and poured.", "cross_family": true }, { "answer_id": "CHK-330-001", "score": 0.49525195360183716, "sibling_score": 0.49525195360183716, "answer_score": null, "sibling_qid": "CHE-2026-08-0671-Q009", "sibling_text": "function of chocks", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What is the purpose and function of main engine chocks?", "cross_family": true } ] }, { "qid": "KOC-2026-05-2131-Q001", "text": "at what interval co2 bottle weight checked. What to do if weight reduced more than 10%.hydrostatic pressure test?", "family": "SOLAS - Fire Safety", "subtopic": "CO2 System", "tid": "KOC-2026-05-2131", "tray": "review", "candidates": [ { "answer_id": "CO2-CALC-P01-002", "score": 0.781755805015564, "sibling_score": 0.781755805015564, "answer_score": null, "sibling_qid": "CHE-2026-08-3891-Q005", "sibling_text": "co2 bottles weight checking interval", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "How is the required CO2 quantity and number of bottles calculated for an engine-room total-flooding system?", "cross_family": false }, { "answer_id": "CO2-SYS-002", "score": 0.7347413897514343, "sibling_score": 0.7347413897514343, "answer_score": 0.46533873677253723, "sibling_qid": "KOC-2026-05-2135-Q005", "sibling_text": "co2 system maintenance 2 5 10 yearly how co2 bottle is weighed", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 maintenance, inspection, testing and survey routines", "cross_family": false }, { "answer_id": "CO2-CALC-P02-002", "score": 0.6891606450080872, "sibling_score": 0.6891606450080872, "answer_score": 0.5551623702049255, "sibling_qid": "KOL-2017-01-0047-Q008", "sibling_text": "co2 bottle weight filling ratio action in case of one bottle leaks why co2 bottle pr tested at 250 bar when filled at 56 bar how to identify leaky bottle", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Checking CO2 cylinder contents and level, and action on a leaking or low cylinder", "cross_family": false } ] }, { "qid": "KOC-2026-05-2131-Q003", "text": "co2 room door opens inwards or outwards. Why?", "family": "SOLAS - Fire Safety", "subtopic": "CO2 System", "tid": "KOC-2026-05-2131", "tray": "new", "candidates": [ { "answer_id": "CO2-SYS-005", "score": 0.6274476647377014, "sibling_score": 0.6274476647377014, "answer_score": 0.35473262518644333, "sibling_qid": "KOC-2026-04-0919-Q007", "sibling_text": "co2 room door requirement and why", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 system safeties, CO2-room requirements, alarms and ventilation", "cross_family": false }, { "answer_id": "CO2-SYS-002", "score": 0.5494006276130676, "sibling_score": 0.5494006276130676, "answer_score": null, "sibling_qid": "KOC-2024-03-0317-Q003", "sibling_text": "co2 room checks as 2 e", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 maintenance, inspection, testing and survey routines", "cross_family": false }, { "answer_id": "CO2-SYS-001", "score": 0.5433408617973328, "sibling_score": 0.5433408617973328, "answer_score": 0.33749758601188656, "sibling_qid": "KOC-2025-01-2059-Q007", "sibling_text": "co2 room re entry procedure", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 release procedure, shutdowns, re-entry and casualty-use decisions", "cross_family": false } ] }, { "qid": "KOC-2026-05-2131-Q008", "text": "What is the relation between pump room light and blower?", "family": "Cargo Ops - Tankers", "subtopic": "Pump Room Safety", "tid": "KOC-2026-05-2131", "tray": "new", "candidates": [ { "answer_id": "PR-SAFE-A-004", "score": 0.6301674246788025, "sibling_score": 0.6301674246788025, "answer_score": 0.4123799905180931, "sibling_qid": "MUM-2023-01-1377-Q001", "sibling_text": "what type of fittings in pump room lighting", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Pump-room electrical safety, lighting and portable equipment", "cross_family": false }, { "answer_id": "EXD-EXI-A-002", "score": 0.6146947145462036, "sibling_score": 0.6146947145462036, "answer_score": null, "sibling_qid": "KOC-2023-03-0154-Q010", "sibling_text": "pump room lighting", "sibling_family": "", "via": "sibling", "answer_title": "Ex d (flameproof / explosion-proof) — construction, shipboard applications and maintenance", "cross_family": false }, { "answer_id": "PR-SAFE-A-003", "score": 0.604706346988678, "sibling_score": 0.604706346988678, "answer_score": 0.4064982354640961, "sibling_qid": "MUM-2024-09-0205-Q003", "sibling_text": "ventilation in pump room from where it take suction", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Pump-room ventilation requirements and interlocks", "cross_family": false } ] }, { "qid": "KOC-2026-05-2132-Q001", "text": "Rt flex manoeuvring how signal is passed when starting .( To Wecs and then to fcm20)?", "family": "2-Stroke - Reversing & Maneuvering", "subtopic": "EICU / Manoeuvring System", "tid": "KOC-2026-05-2132", "tray": "new", "candidates": [ { "answer_id": "EICU-MAN-P02-002", "score": 0.5196552276611328, "sibling_score": 0.5196552276611328, "answer_score": 0.36200140714645385, "sibling_qid": "KOC-2024-07-0997-Q001", "sibling_text": "rt flex maneuvering interlocks", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Manoeuvring on RT-flex, Sulzer RTA and Mitsubishi UEC", "cross_family": false }, { "answer_id": "REV-PROC-003", "score": 0.48392072319984436, "sibling_score": 0.48392072319984436, "answer_score": null, "sibling_qid": "KOL-2022-01-1652-Q003", "sibling_text": "how reversing is achieved in rt flex", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Reversing in Sulzer / RTA / UEC / RT-flex engines", "cross_family": false }, { "answer_id": "EICU-MAN-P01-002", "score": 0.4507952034473419, "sibling_score": 0.4507952034473419, "answer_score": null, "sibling_qid": "KOC-2025-03-1034-Q001", "sibling_text": "mec manoeuvering", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "ME / ME-C / ME-B manoeuvring system — diagram and explanation", "cross_family": false } ] }, { "qid": "KOC-2026-05-2132-Q008", "text": "Gusset stay ?", "family": "Boilers - Construction & Components", "subtopic": "Ogee Ring", "tid": "KOC-2026-05-2132", "tray": "new", "candidates": [ { "answer_id": "OGEE-RING-001", "score": 0.5385524034500122, "sibling_score": 0.5385524034500122, "answer_score": null, "sibling_qid": "KOC-2022-01-0954-Q007", "sibling_text": "gusset stay ogee ring", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "The ogee ring: what it is, where it sits, its purpose, and how it's formed and connected", "cross_family": false }, { "answer_id": "FWFB-P02-001", "score": 0.42968088388442993, "sibling_score": 0.42968088388442993, "answer_score": 0.2958908319473266, "sibling_qid": "MUM-2022-10-0061-Q005", "sibling_text": "gusset plate where used", "sibling_family": "", "via": "sibling", "answer_title": "Brackets, knees and gusset plates", "cross_family": false }, { "answer_id": "HATCH-COAM-005", "score": 0.38307955861091614, "sibling_score": 0.38307955861091614, "answer_score": 0.3078996568918228, "sibling_qid": "KOC-2026-02-0799-Q006", "sibling_text": "hatch coming coming stay", "sibling_family": "", "via": "sibling", "answer_title": "What supports, stays or strengthening members are provided for hatch coamings and large hatch openings?", "cross_family": false } ] }, { "qid": "KOC-2026-05-2132-Q012", "text": "Advancements in engine while using ammonia as fuel?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Bearing Nomenclature", "tid": "KOC-2026-05-2132", "tray": "review", "candidates": [ { "answer_id": "BIO-FUEL-004", "score": 0.6682926416397095, "sibling_score": 0.6682926416397095, "answer_score": 0.5634247481822967, "sibling_qid": "KOC-2026-08-2161-Q002", "sibling_text": "ammonia engine", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Ammonia injection in the electronically-controlled (ME) two-stroke", "cross_family": true }, { "answer_id": "ALT-FUEL-004", "score": 0.6387832760810852, "sibling_score": 0.6387832760810852, "answer_score": 0.5499158143997193, "sibling_qid": "KOC-2021-10-0027-Q006", "sibling_text": "advantages of ammonia as fuels how is ammonia used as a fuel", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "How is ammonia used as a future marine fuel, including ammonia-engine operation?", "cross_family": true }, { "answer_id": "SFOC-006", "score": 0.5761646032333374, "sibling_score": 0.5761646032333374, "answer_score": null, "sibling_qid": "KOL-2019-06-1458-Q002", "sibling_text": "developments which had increased engine s efficiency", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What developments reduced fuel consumption in two-stroke engines — and what gives a direct reduction in SFOC?", "cross_family": true } ] }, { "qid": "KOC-2026-05-2132-Q014", "text": "Local emergency steering in rotary vane? 15Thrust bearing clearance to check?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Bottom End Bearing", "tid": "KOC-2026-05-2132", "tray": "review", "candidates": [ { "answer_id": "THR-BRG-A-001", "score": 0.6535292267799377, "sibling_score": 0.6535292267799377, "answer_score": 0.4598567962646484, "sibling_qid": "KOC-2025-01-1893-Q005", "sibling_text": "how to check the thrust bearing clearance of main engine x what is the thrustbrg weardown clearance x you dont have to push pull or insert crowbar etc", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you check, measure, limit and adjust main-engine thrust bearing clearance?", "cross_family": false }, { "answer_id": "TB-BEAR-001", "score": 0.632820188999176, "sibling_score": 0.632820188999176, "answer_score": null, "sibling_qid": "MUM-2026-07-3807-Q009", "sibling_text": "thrust bearing clearance procedure", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Thrust bearing clearance — measurement procedure & value", "cross_family": false }, { "answer_id": "THRUST-PC-003", "score": 0.4905969440937042, "sibling_score": null, "answer_score": 0.4905969440937042, "sibling_qid": "", "sibling_text": "taking the thrust clearance without removing the block clearance total axial float collar to pads ahead and astern share it engine stopped on turning gear", "sibling_family": "", "via": "answer_title", "answer_title": "Taking the thrust clearance (without removing the block)", "cross_family": false } ] }, { "qid": "KOC-2026-05-2132-Q017", "text": "Bilge pump piston ring material .(Told ptfe/teflon) Why these are used instead of normal piston ring material?", "family": "Pumps - Centrifugal & PD", "subtopic": "Bilge Line / Pump", "tid": "KOC-2026-05-2132", "tray": "review", "candidates": [ { "answer_id": "PCD-P04-04", "score": 0.7015087604522705, "sibling_score": 0.7015087604522705, "answer_score": null, "sibling_qid": "KOL-2018-10-1427-Q003", "sibling_text": "bilge pump piston ring material and how the ductility of the material helps in sealing", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "04. Bilge / reciprocating pump overhaul — checks, valves and piston-ring wear", "cross_family": false }, { "answer_id": "CYL-LINER-P04-006", "score": 0.5910815000534058, "sibling_score": 0.5910815000534058, "answer_score": null, "sibling_qid": "MUM-2022-07-1016-Q008", "sibling_text": "piston piston ring liner material", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Material & manufacturing", "cross_family": true }, { "answer_id": "PRING-B-003", "score": 0.5717188119888306, "sibling_score": 0.5717188119888306, "answer_score": null, "sibling_qid": "KOL-2016-07-1223-Q002", "sibling_text": "piston cleaning ring and material of ring", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Material, coating & manufacture", "cross_family": true } ] }, { "qid": "KOC-2026-05-2132-Q018", "text": "mechanical seal stationary and rotary seal material?", "family": "Pumps - Centrifugal & PD", "subtopic": "Centrifugal Pump", "tid": "KOC-2026-05-2132", "tray": "review", "candidates": [ { "answer_id": "PCD-P03-03", "score": 0.7677975296974182, "sibling_score": 0.7677975296974182, "answer_score": 0.594221132993698, "sibling_qid": "CHE-2025-08-0422-Q004", "sibling_text": "mechanical seal working parts material", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Mechanical seal — construction, materials, fitting, removal and leakage", "cross_family": false }, { "answer_id": "STT-BRG-003", "score": 0.6801581382751465, "sibling_score": 0.6801581382751465, "answer_score": null, "sibling_qid": "KOL-2019-02-1442-Q004", "sibling_text": "radial face seal how fitted material rao sir", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "2. Stern tube seals — lip, radial-face and simplex arrangement (oil and air)", "cross_family": true }, { "answer_id": "PCD-P03-01", "score": 0.654534637928009, "sibling_score": 0.654534637928009, "answer_score": null, "sibling_qid": "KOL-2022-01-3513-Q004", "sibling_text": "centrifugal pump survey main sw pp materials of different parts mechanical seal construction material", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Centrifugal pump overhaul — procedure, checks, clearances and survey evidence", "cross_family": false } ] }, { "qid": "KOC-2026-05-2133-Q002", "text": "what is the pressure in bottle and tank?", "family": "SOLAS - Fire Safety", "subtopic": "DCP / Dry Powder", "tid": "KOC-2026-05-2133", "tray": "review", "candidates": [ { "answer_id": "CO2-SYS-002", "score": 0.6762463450431824, "sibling_score": 0.6762463450431824, "answer_score": null, "sibling_qid": "KOC-2023-10-0226-Q005", "sibling_text": "co2 bottle specifications relief valve testing pressure", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 maintenance, inspection, testing and survey routines", "cross_family": false }, { "answer_id": "DCP-FIXED-A-003", "score": 0.6717793345451355, "sibling_score": 0.6717793345451355, "answer_score": null, "sibling_qid": "KOC-2025-05-0592-Q004", "sibling_text": "pressure of pilot bottle", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Capacities, pressures, relief settings, regulations and calculation", "cross_family": false }, { "answer_id": "CO2-SYS-006", "score": 0.6595714688301086, "sibling_score": 0.6595714688301086, "answer_score": 0.47963463366031645, "sibling_qid": "KOC-2025-10-0685-Q010", "sibling_text": "draw fixed system n2 bottle capacity and pressure", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 bottles, manifolds, pilot cylinders and valve components", "cross_family": false } ] }, { "qid": "KOC-2026-05-2133-Q004", "text": "SOLAS 12 ,all subdivisions?", "family": "IMO Structure & Conventions", "subtopic": "SOLAS Chapters", "tid": "KOC-2026-05-2133", "tray": "new", "candidates": [ { "answer_id": "SOLAS-CH-013", "score": 0.6048395037651062, "sibling_score": 0.6048395037651062, "answer_score": null, "sibling_qid": "MUM-2026-07-3797-Q003", "sibling_text": "solas ch12 all sub chapters", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS Chapter XII - additional safety measures for bulk carriers", "cross_family": false }, { "answer_id": "SOLAS12-C-001", "score": 0.5721815228462219, "sibling_score": 0.5721815228462219, "answer_score": null, "sibling_qid": "KOC-2024-03-0323-Q007", "sibling_text": "solas chapter 12 all sub sections", "sibling_family": "", "via": "sibling", "answer_title": "Explain SOLAS Chapter XII for bulk carriers — oral-exam overview", "cross_family": false }, { "answer_id": "SOLAS12-BC-B-002", "score": 0.5606999397277832, "sibling_score": 0.5606999397277832, "answer_score": 0.32286484986543657, "sibling_qid": "KOC-2026-04-0905-Q005", "sibling_text": "solas ch xii list all sections", "sibling_family": "", "via": "sibling", "answer_title": "SOLAS Chapter XII — the 14 regulations (list)", "cross_family": false } ] }, { "qid": "KOC-2026-05-2133-Q005", "text": "Explain 5 Class notation in detail?", "family": "IMO Structure & Conventions", "subtopic": "SOLAS Chapters", "tid": "KOC-2026-05-2133", "tray": "new", "candidates": [ { "answer_id": "CLASS-NOT-001", "score": 0.5391092300415039, "sibling_score": 0.5391092300415039, "answer_score": 0.37374976873397825, "sibling_qid": "KOC-2026-03-0847-Q002", "sibling_text": "notation of class", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is class notation, and how would you explain the notation written for your ship?", "cross_family": true }, { "answer_id": "CN-576-001", "score": 0.5206111073493958, "sibling_score": 0.5206111073493958, "answer_score": 0.33893895000219343, "sibling_qid": "KOL-2025-09-1028-Q007", "sibling_text": "class notations", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What are the class notations of the vessel?", "cross_family": true }, { "answer_id": "IACS-324-005", "score": 0.3290828615427017, "sibling_score": null, "answer_score": 0.3290828615427017, "sibling_qid": "", "sibling_text": "5 what is the difference between a classification society a recognized organization and statutory certification classification society private body its own rules issues the certificate of class a technical standard recognized organization a class society or other org authorised by a flag state to do statutory survey and certification on its behalf a role not a separate body", "sibling_family": "", "via": "answer_title", "answer_title": "5. What is the difference between a classification society, a Recognized Organization, and statutory certification?", "cross_family": false } ] }, { "qid": "KOC-2026-05-2133-Q009", "text": "What type of vessels sailed in, status of oral and written?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2026-05-2133", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.6632396578788757, "sibling_score": 0.6632396578788757, "answer_score": null, "sibling_qid": "KOC-2026-08-2106-Q001", "sibling_text": "status of written oral company type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.6268309950828552, "sibling_score": 0.6268309950828552, "answer_score": null, "sibling_qid": "CHE-2026-02-0481-Q001", "sibling_text": "type of vessels sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.6230229735374451, "sibling_score": 0.6230229735374451, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q001", "sibling_text": "type of vessel engine make written and oral status", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "KOC-2026-05-2133-Q012", "text": "Explain vibrating coil?", "family": "Electrical - Distribution & Earthing", "subtopic": "", "tid": "KOC-2026-05-2133", "tray": "new", "candidates": [ { "answer_id": "AVR-EXC-F-002", "score": 0.5795139074325562, "sibling_score": 0.5795139074325562, "answer_score": 0.46539902687072754, "sibling_qid": "KOC-2023-04-0181-Q019", "sibling_text": "explain vibrating contact regulator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "How does a vibrating-contact voltage regulator work?", "cross_family": true }, { "answer_id": "AVR-EXC-C-001", "score": 0.5613993406295776, "sibling_score": 0.5613993406295776, "answer_score": null, "sibling_qid": "KOC-2026-08-2119-Q013", "sibling_text": "explain vibrating contact avr", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Types of AVR / excitation and how one is selected", "cross_family": true }, { "answer_id": "OC-UV-TRIP-001", "score": 0.5462770462036133, "sibling_score": 0.5462770462036133, "answer_score": null, "sibling_qid": "CHE-2026-02-0341-Q005", "sibling_text": "under voltage coil working", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Under-voltage trip / no-volt coil — purpose, working, onboard test and calibration", "cross_family": true } ] }, { "qid": "KOC-2026-05-2133-Q017", "text": "How to calibrate radar? Internal ques", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "KOC-2026-05-2133", "tray": "new", "candidates": [ { "answer_id": "MICR-002", "score": 0.5373755693435669, "sibling_score": 0.5373755693435669, "answer_score": 0.40691791027784346, "sibling_qid": "MUM-2026-02-2580-Q003", "sibling_text": "tool how to calibrate it", "sibling_family": "Gauges & Tools", "via": "sibling", "answer_title": "Zero setting, calibration, error check and trueness", "cross_family": true }, { "answer_id": "CYL-LINER-P01-002", "score": 0.5365685224533081, "sibling_score": 0.5365685224533081, "answer_score": 0.3928697347640991, "sibling_qid": "MUM-2026-02-2580-Q004", "sibling_text": "where will u calibrate", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Getting true readings: tool, position and temperature", "cross_family": true }, { "answer_id": "MICR-003", "score": 0.5282179713249207, "sibling_score": 0.5282179713249207, "answer_score": 0.38600953221321105, "sibling_qid": "MUM-2026-03-2636-Q002", "sibling_text": "how to make sure calibration is correct", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Cylinder liner calibration with the inside micrometer", "cross_family": true } ] }, { "qid": "KOC-2026-05-2133-Q018", "text": "What are the bands in it? what's the range? Internal ques", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "KOC-2026-05-2133", "tray": "new", "candidates": [ { "answer_id": "PID-CTRL-003", "score": 0.4795951545238495, "sibling_score": 0.4795951545238495, "answer_score": 0.2835740715265274, "sibling_qid": "KOL-2020-06-2384-Q003", "sibling_text": "3 proportional band", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Proportional gain and proportional band", "cross_family": true }, { "answer_id": "REF-CYC-006", "score": 0.4583621621131897, "sibling_score": 0.4583621621131897, "answer_score": null, "sibling_qid": "MUM-2026-04-2112-Q005", "sibling_text": "what is range 55 degree and 19 degree specifies don t understand question", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "6. Saturation temperature, subcooling, superheat and dryness fraction", "cross_family": true }, { "answer_id": "EPC-P01-08", "score": 0.4202282726764679, "sibling_score": 0.4202282726764679, "answer_score": 0.2837346002459526, "sibling_qid": "MUM-2026-09-3886-Q006", "sibling_text": "x band and s band wavelength and frequency and type of wave", "sibling_family": "Navigation & Bridge Equipment", "via": "sibling", "answer_title": "Magnetron — what it is and how it works", "cross_family": true } ] }, { "qid": "KOC-2026-05-2134-Q004", "text": "Vector diagram for power factor, what happens to KW , KVA and KVAR when power factor increase or decreases?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Active / Reactive / Apparent Power", "tid": "KOC-2026-05-2134", "tray": "review", "candidates": [ { "answer_id": "PWR-ARA-003", "score": 0.783358097076416, "sibling_score": 0.783358097076416, "answer_score": null, "sibling_qid": "KOC-2024-11-1436-Q001", "sibling_text": "kva kw kvar triangle diagram explain each power factor one generator low and another generator high what will happen", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Power factor and cos phi", "cross_family": false }, { "answer_id": "PF-D-001", "score": 0.7303353548049927, "sibling_score": 0.7303353548049927, "answer_score": 0.598222267627716, "sibling_qid": "KOC-2022-02-1171-Q001", "sibling_text": "relationship between kw and power factor in diagram", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "How kW, kVA, kVAR, current and the power triangle relate to power factor", "cross_family": true }, { "answer_id": "PWR-ARA-001", "score": 0.7278733849525452, "sibling_score": 0.7278733849525452, "answer_score": 0.5579415917396545, "sibling_qid": "KOC-2024-09-1403-Q002", "sibling_text": "power factor kw kva kvar", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "kW, kVA and kVAr — and the power triangle", "cross_family": false } ] }, { "qid": "KOC-2026-05-2134-Q005", "text": "Exi, Zener barrier circuit, where used?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Zener / Diode / Rectifier", "tid": "KOC-2026-05-2134", "tray": "new", "candidates": [ { "answer_id": "HAZ-EX-B-001", "score": 0.6329254508018494, "sibling_score": 0.6329254508018494, "answer_score": null, "sibling_qid": "CHE-2026-03-0358-Q005", "sibling_text": "zener barrier working in intrinsically safe", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Intrinsically safe (Ex i) equipment — what it is, how it works, where it is used, how you identify it", "cross_family": false }, { "answer_id": "FSF-BF073-004", "score": 0.6271311640739441, "sibling_score": 0.6271311640739441, "answer_score": null, "sibling_qid": "CHE-2026-03-0359-Q001", "sibling_text": "zener diode zener barrier working in intrinsically safe", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a magnetic fail safe?", "cross_family": false }, { "answer_id": "EPC-P02-03", "score": 0.6149440407752991, "sibling_score": 0.6149440407752991, "answer_score": 0.45006603896617886, "sibling_qid": "KOL-2025-06-2788-Q007", "sibling_text": "zener diode where used", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Where is a zener diode used on board and why — voltage regulator, AVR, clipper — and explain one application in detail.", "cross_family": false } ] }, { "qid": "KOC-2026-05-2134-Q006", "text": "Exd , difference between Exi and Exd , one examples for each?", "family": "Electrical - Protection & Relays", "subtopic": "Protection / Relays", "tid": "KOC-2026-05-2134", "tray": "new", "candidates": [ { "answer_id": "EXD-EXI-A-001", "score": 0.604315996170044, "sibling_score": 0.604315996170044, "answer_score": null, "sibling_qid": "KOC-2023-03-1241-Q002", "sibling_text": "exd and exi explain application of both", "sibling_family": "", "via": "sibling", "answer_title": "Ex i (intrinsically safe) vs Ex d (flameproof / explosion-proof) — the difference", "cross_family": false }, { "answer_id": "EECS-001", "score": 0.5797213315963745, "sibling_score": 0.5797213315963745, "answer_score": null, "sibling_qid": "MUM-2024-09-0203-Q002", "sibling_text": "eexi eedi differences", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "01. Differentiate EEDI and EEXI — formula and units of each", "cross_family": true }, { "answer_id": "EXD-EXI-A-002", "score": 0.5768027305603027, "sibling_score": 0.5768027305603027, "answer_score": null, "sibling_qid": "KOC-2025-05-2064-Q007", "sibling_text": "ex i and exd", "sibling_family": "", "via": "sibling", "answer_title": "Ex d (flameproof / explosion-proof) — construction, shipboard applications and maintenance", "cross_family": false } ] }, { "qid": "KOC-2026-05-2134-Q008", "text": "Engine room fan MCB tripped ,reasons and checks?", "family": "Surveys - Statutory", "subtopic": "Electrical Survey", "tid": "KOC-2026-05-2134", "tray": "new", "candidates": [ { "answer_id": "ELEC-SURV-002", "score": 0.5716362595558167, "sibling_score": 0.5716362595558167, "answer_score": null, "sibling_qid": "MUM-2022-09-1355-Q009", "sibling_text": "electrical checks in engine room", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Survey checks & engine-room electrical inspection", "cross_family": false }, { "answer_id": "MNS-009", "score": 0.5552420616149902, "sibling_score": 0.5552420616149902, "answer_score": 0.48014279305934904, "sibling_qid": "KOC-2025-10-1597-Q004", "sibling_text": "gangway motor tripping electrical reasons", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Motor trips on starting, or immediately after — electrical reasons and your checks", "cross_family": true }, { "answer_id": "MNS-010", "score": 0.5514772534370422, "sibling_score": 0.5514772534370422, "answer_score": 0.45303611159324647, "sibling_qid": "KOC-2024-10-1417-Q011", "sibling_text": "motor breaker tripped reason", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "The motor breaker tripped — what that tells you that an overload trip does not", "cross_family": true } ] }, { "qid": "KOC-2026-05-2134-Q009", "text": "Fuses , its uses and location?", "family": "Electrical - Protection & Relays", "subtopic": "Fuse / HRC", "tid": "KOC-2026-05-2134", "tray": "new", "candidates": [ { "answer_id": "FUSE-HRC-001", "score": 0.4713324010372162, "sibling_score": 0.4713324010372162, "answer_score": 0.2633867681026459, "sibling_qid": "MUM-2024-07-1441-Q002", "sibling_text": "fuse", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "What a fuse is, where and why it is fitted", "cross_family": false }, { "answer_id": "CTRL-TL-002", "score": 0.40350356698036194, "sibling_score": 0.40350356698036194, "answer_score": null, "sibling_qid": "KOL-2022-10-1926-Q005", "sibling_text": "used where", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Function of a controller, and types used on board", "cross_family": true }, { "answer_id": "AUC-SEN-07", "score": 0.40152639150619507, "sibling_score": 0.40152639150619507, "answer_score": null, "sibling_qid": "KOC-2024-07-1370-Q003", "sibling_text": "where used", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Thermistor versus thermocouple — physics, signal and where each goes onboard", "cross_family": true } ] }, { "qid": "KOC-2026-05-2135-Q001", "text": "Type of vessel? ", "family": "SOLAS - Fire Safety", "subtopic": "DCP / Dry Powder", "tid": "KOC-2026-05-2135", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.801223635673523, "sibling_score": 0.801223635673523, "answer_score": null, "sibling_qid": "MUM-2026-06-3384-Q001", "sibling_text": "type of vessel", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": true }, { "answer_id": "LLST-AB-002", "score": 0.7427459955215454, "sibling_score": 0.7427459955215454, "answer_score": 0.47369261384010314, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.7271531820297241, "sibling_score": 0.7271531820297241, "answer_score": null, "sibling_qid": "CHE-2026-02-0481-Q001", "sibling_text": "type of vessels sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": true } ] }, { "qid": "KOC-2026-05-2136-Q004", "text": "Sweep test?", "family": "NDT & Material Testing", "subtopic": "Sweep Test", "tid": "KOC-2026-05-2136", "tray": "new", "candidates": [ { "answer_id": "MATPROP-A-006", "score": 0.43362823128700256, "sibling_score": 0.43362823128700256, "answer_score": null, "sibling_qid": "KOL-2020-02-1524-Q010", "sibling_text": "destructive tests", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Destructive and material tests", "cross_family": false }, { "answer_id": "NDT-METH-P01-001", "score": 0.4289942979812622, "sibling_score": 0.4289942979812622, "answer_score": null, "sibling_qid": "MUM-2024-01-2216-Q006", "sibling_text": "tests destructive and non destructive", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "NDT methods, NDT vs destructive testing, and onboard use", "cross_family": false }, { "answer_id": "IMP-CHARPY-001", "score": 0.4278097152709961, "sibling_score": 0.4278097152709961, "answer_score": null, "sibling_qid": "KOL-2021-08-3436-Q004", "sibling_text": "impact test everything", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "What is an impact test, and what is its purpose or significance?", "cross_family": false } ] }, { "qid": "KOC-2026-05-2138-Q001", "text": "Type of ship?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2026-05-2138", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8362351655960083, "sibling_score": 0.8362351655960083, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8017287850379944, "sibling_score": 0.8017287850379944, "answer_score": 0.5469861209392547, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8002189993858337, "sibling_score": 0.8002189993858337, "answer_score": 0.521619999408722, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "KOC-2026-05-2140-Q016", "text": "Governor motor types?", "family": "Electrical - Motors & Starters", "subtopic": "Induction Motor (General / Working)", "tid": "KOC-2026-05-2140", "tray": "review", "candidates": [ { "answer_id": "DCMOT-CMU-B-004", "score": 0.8585124015808105, "sibling_score": 0.8585124015808105, "answer_score": null, "sibling_qid": "KOC-2025-12-1681-Q007", "sibling_text": "int governor motor types", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "The DC motor on the AE governor (the actuator)", "cross_family": false }, { "answer_id": "IM-GEN-B-002", "score": 0.7956209778785706, "sibling_score": 0.7956209778785706, "answer_score": null, "sibling_qid": "KOL-2024-02-0809-Q005", "sibling_text": "types of motor used in a e governor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motors onboard and types of induction motors", "cross_family": false }, { "answer_id": "AE-GOV-004", "score": 0.7445075511932373, "sibling_score": 0.7445075511932373, "answer_score": 0.5783647358417511, "sibling_qid": "KOL-2025-09-2856-Q002", "sibling_text": "types of motor used in a e governor", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "4. The motor on top of the AE governor — type, function and purpose (speeder / synchronising motor)", "cross_family": true } ] }, { "qid": "KOC-2026-05-2141-Q001", "text": "Hooper tank construction?", "family": "Cargo Ops - Tankers", "subtopic": "Cargo Tank Construction", "tid": "KOC-2026-05-2141", "tray": "new", "candidates": [ { "answer_id": "BC-HOPPER-G-001", "score": 0.5782144665718079, "sibling_score": 0.5782144665718079, "answer_score": 0.4026481807231903, "sibling_qid": "KOL-2022-07-0652-Q005", "sibling_text": "hooper tank", "sibling_family": "", "via": "sibling", "answer_title": "Hopper and topside tanks — what they are and their purpose", "cross_family": false }, { "answer_id": "BC-IMSBC-003", "score": 0.5587451457977295, "sibling_score": 0.5587451457977295, "answer_score": 0.3789530321955681, "sibling_qid": "KOL-2025-04-0929-Q003", "sibling_text": "upper hooper tank", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "3. Topside, upper hopper and lower hopper tanks", "cross_family": true }, { "answer_id": "LTK-386-003", "score": 0.5483149886131287, "sibling_score": 0.5483149886131287, "answer_score": null, "sibling_qid": "MUM-2026-05-3230-Q003", "sibling_text": "slop tank construction in detail", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Statutory requirements, capacity criteria and regulation for slop tanks", "cross_family": false } ] }, { "qid": "KOC-2026-05-2141-Q002", "text": "What is stool? why it is provided?", "family": "Ship Construction & Stability", "subtopic": "", "tid": "KOC-2026-05-2141", "tray": "new", "candidates": [ { "answer_id": "LTK-386-002", "score": 0.36887142062187195, "sibling_score": 0.36887142062187195, "answer_score": null, "sibling_qid": "CHE-2026-05-0554-Q007", "sibling_text": "po ques slop tank purpose xxxx", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What is a slop tank and what are its purposes on a tanker?", "cross_family": true }, { "answer_id": "OILRES-DISCH-TOPIC467-FINAL-004", "score": 0.36448511481285095, "sibling_score": 0.36448511481285095, "answer_score": null, "sibling_qid": "CHE-2025-12-0328-Q012", "sibling_text": "purposes of slop tank", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Cargo oil residues and the slop tank — purpose, capacity, handling, discharge criteria and reception facilities", "cross_family": true }, { "answer_id": "COW-593-001", "score": 0.3574388921260834, "sibling_score": 0.3574388921260834, "answer_score": null, "sibling_qid": "KOL-2023-09-0768-Q006", "sibling_text": "internal rao purpose of slop tank what is cow washing", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "What is crude oil washing?", "cross_family": true } ] }, { "qid": "KOC-2026-05-2141-Q005", "text": "Coffer dam ?", "family": "Ship Construction & Stability", "subtopic": "Cofferdam / Void Space", "tid": "KOC-2026-05-2141", "tray": "new", "candidates": [ { "answer_id": "SAC-ANODE-006", "score": 0.569112241268158, "sibling_score": 0.569112241268158, "answer_score": 0.43284769356250763, "sibling_qid": "KOL-2026-01-1153-Q004", "sibling_text": "why is disc type anode fitted in cofferdam location where fitted", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "Where are disc-type or tank / cofferdam anodes fitted, and are anodes fitted in product-tanker cargo tanks?", "cross_family": true }, { "answer_id": "PPS-230-006", "score": 0.5386232733726501, "sibling_score": 0.5386232733726501, "answer_score": null, "sibling_qid": "MUM-2026-08-3829-Q005", "sibling_text": "forepeak tank construction", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Fore-end / fore-peak structure: draw and describe", "cross_family": false }, { "answer_id": "FORMCO-313-001", "score": 0.5336823463439941, "sibling_score": 0.5336823463439941, "answer_score": null, "sibling_qid": "KOL-2019-04-0282-Q002", "sibling_text": "block coff", "sibling_family": "", "via": "sibling", "answer_title": "Block coefficient (Cb) / coefficient of buoyancy", "cross_family": false } ] }, { "qid": "KOC-2026-05-2141-Q006", "text": "M/E contaminated by water, what are the reasons ? ", "family": "Fault Diagnosis & 2/E Actions", "subtopic": "", "tid": "KOC-2026-05-2141", "tray": "new", "candidates": [ { "answer_id": "LO-TEST-P02-003", "score": 0.566441535949707, "sibling_score": 0.566441535949707, "answer_score": null, "sibling_qid": "KOC-2026-05-0003-Q012", "sibling_text": "me lub oil is contaminated with fresh water actions", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Abnormal LO condition: sump rise, colour, high temperature/pressure, lacquer, deterioration", "cross_family": true }, { "answer_id": "BLR-CHEM-008", "score": 0.5317094326019287, "sibling_score": 0.5317094326019287, "answer_score": 0.41865190863609314, "sibling_qid": "KOL-2022-01-1658-Q003", "sibling_text": "boiler water contaminats rest forgot", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "8. Boiler-water contaminants, hardness, scale and sludge", "cross_family": true }, { "answer_id": "IP-ENCL-001", "score": 0.5210667252540588, "sibling_score": 0.5210667252540588, "answer_score": null, "sibling_qid": "MUM-2026-07-3749-Q013", "sibling_text": "motor in seawater contaminate", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "IP rating of motors — what the numbers mean", "cross_family": true } ] }, { "qid": "KOC-2026-05-2141-Q007", "text": " explain SOLAS ch15 ? Decider by internal:", "family": "SOLAS - General", "subtopic": "", "tid": "KOC-2026-05-2141", "tray": "new", "candidates": [ { "answer_id": "ESP-B-001", "score": 0.41834181547164917, "sibling_score": 0.41834181547164917, "answer_score": null, "sibling_qid": "KOL-2025-07-0995-Q008", "sibling_text": "decider what is esp which chapter of solas what all are checked", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "How an ESP survey is carried out — conduct, engine-room preparation & 2/E duties", "cross_family": true }, { "answer_id": "SOLAS-OVW-012", "score": 0.3979264497756958, "sibling_score": 0.3979264497756958, "answer_score": null, "sibling_qid": "MUM-2026-06-3656-Q020", "sibling_text": "explain solas chapter 15", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "SOLAS Chapter XV and the newest chapters", "cross_family": true }, { "answer_id": "SOLAS12-C-001", "score": 0.34726500511169434, "sibling_score": 0.34726500511169434, "answer_score": null, "sibling_qid": "KOC-2022-09-0099-Q008", "sibling_text": "solas chapter 12 explanation all criterias", "sibling_family": "", "via": "sibling", "answer_title": "Explain SOLAS Chapter XII for bulk carriers — oral-exam overview", "cross_family": false } ] }, { "qid": "KOC-2026-05-2142-Q001", "text": "Company, attempt, engines done- (me, mc and uec)", "family": "Status & Introduction", "subtopic": "", "tid": "KOC-2026-05-2142", "tray": "new", "candidates": [ { "answer_id": "EGTP-P02-005", "score": 0.5698419213294983, "sibling_score": 0.5698419213294983, "answer_score": 0.3698082908987999, "sibling_qid": "MUM-2026-06-3500-Q002", "sibling_text": "mc vs me engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "MC / MC-C / ME-C and Electronically Controlled Engines", "cross_family": false }, { "answer_id": "MCC-MEB-P01-001", "score": 0.5231401920318604, "sibling_score": 0.5231401920318604, "answer_score": null, "sibling_qid": "MUM-2026-06-3596-Q002", "sibling_text": "what type of engine mcc", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "MC-C (\"Compact\") engine — design and the main constructional differences from MC", "cross_family": false }, { "answer_id": "ALT-MTN-B-001", "score": 0.5037496089935303, "sibling_score": 0.5037496089935303, "answer_score": null, "sibling_qid": "MUM-2026-02-1281-Q001", "sibling_text": "main engine specification mc c", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Routine onboard alternator maintenance checks", "cross_family": false } ] }, { "qid": "KOC-2026-05-2142-Q003", "text": "Reversing Clutch arrangement?", "family": "2-Stroke - Reversing & Maneuvering", "subtopic": "Reversing Procedure", "tid": "KOC-2026-05-2142", "tray": "review", "candidates": [ { "answer_id": "REV-PROC-003", "score": 0.7027368545532227, "sibling_score": 0.7027368545532227, "answer_score": 0.47500764727592465, "sibling_qid": "KOL-2026-02-2040-Q002", "sibling_text": "reversing mechanism rta engine", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Reversing in Sulzer / RTA / UEC / RT-flex engines", "cross_family": false }, { "answer_id": "REV-PROC-001", "score": 0.7021809220314026, "sibling_score": 0.7021809220314026, "answer_score": null, "sibling_qid": "MUM-2023-10-1063-Q007", "sibling_text": "reversing in main engine", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Reversing a reversible two-stroke main engine — the principle", "cross_family": false }, { "answer_id": "REV-PROC-002", "score": 0.693113386631012, "sibling_score": 0.693113386631012, "answer_score": null, "sibling_qid": "MUM-2026-06-3558-Q002", "sibling_text": "reversing in me b engine and reversing in me c engine", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Reversing in MAN B&W MC / MC-C / ME-C / ME-B engines", "cross_family": false } ] }, { "qid": "KOC-2026-05-2142-Q009", "text": "Cylinder relief valve diagram?", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Cover / Head", "tid": "KOC-2026-05-2142", "tray": "review", "candidates": [ { "answer_id": "FFF-A-003", "score": 0.7585440874099731, "sibling_score": 0.7585440874099731, "answer_score": null, "sibling_qid": "CHE-2026-04-0170-Q001S8", "sibling_text": "cylinder relief valve construction", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fire main, hydrants, isolating and deck valves, and fire-line fittings", "cross_family": true }, { "answer_id": "SAV-001", "score": 0.7502233386039734, "sibling_score": 0.7502233386039734, "answer_score": null, "sibling_qid": "MUM-2026-03-2935-Q005", "sibling_text": "cylinder head safety valve of main engine diagram", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Construction and working of the main automatic starting air valve", "cross_family": false }, { "answer_id": "MR-DS-PV-B-006", "score": 0.7136281728744507, "sibling_score": 0.7136281728744507, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q005", "sibling_text": "full bore safety valve diagram", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "6. Deck isolating valve, deck relief/safety devices, and cargo-tank pressure", "cross_family": true } ] }, { "qid": "KOC-2026-08-2102-Q002", "text": "MEPC 84 ?", "family": "IMO Structure & Conventions", "subtopic": "Latest MEPC Outcomes / GHG Strategy", "tid": "KOC-2026-08-2102", "tray": "review", "candidates": [ { "answer_id": "AV6-P01-01", "score": 0.6803106069564819, "sibling_score": 0.6803106069564819, "answer_score": null, "sibling_qid": "KOC-2026-03-0884-Q005", "sibling_text": "mepc 83", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Explain the latest Annex VI amendment or MEPC development, and state its date and status.", "cross_family": false }, { "answer_id": "MEPC-GHG-003", "score": 0.57576984167099, "sibling_score": 0.57576984167099, "answer_score": null, "sibling_qid": "KOC-2024-08-0382-Q003", "sibling_text": "mepc 80", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Explain MEPC 80 — when was it held and what was decided?", "cross_family": true }, { "answer_id": "MEPC-GHG-002", "score": 0.5546313524246216, "sibling_score": 0.5546313524246216, "answer_score": null, "sibling_qid": "KOC-2023-03-0162-Q002", "sibling_text": "mepc 78", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Explain MEPC 78 and MEPC 79 — when were they held and what was decided?", "cross_family": true } ] }, { "qid": "KOC-2026-08-2102-Q003", "text": "Diagram of ER tank arrangement ? ME, Sump, all DB tanks and all other tanks ?", "family": "Bilge & Ballast Systems", "subtopic": "Primary Bilge Tank", "tid": "KOC-2026-08-2102", "tray": "new", "candidates": [ { "answer_id": "DBTB-A-001", "score": 0.6483190059661865, "sibling_score": 0.6483190059661865, "answer_score": null, "sibling_qid": "KOC-2023-09-0220-Q005", "sibling_text": "db tank diagram", "sibling_family": "", "via": "sibling", "answer_title": "Double-bottom construction and the structural members fitted", "cross_family": false }, { "answer_id": "DBTB-A-002", "score": 0.589865505695343, "sibling_score": 0.589865505695343, "answer_score": null, "sibling_qid": "KOL-2017-01-0060-Q005", "sibling_text": "db tank construction details simple diagram margin plate solid plate floor longitudinals show in the diagram", "sibling_family": "", "via": "sibling", "answer_title": "Double-bottom tanks: purpose, advantages, disadvantages and stability effect", "cross_family": false }, { "answer_id": "KGF-A-001", "score": 0.5882716178894043, "sibling_score": 0.5882716178894043, "answer_score": null, "sibling_qid": "KOC-2024-08-0391-Q001", "sibling_text": "draw transverse c s of engine room showing db tank", "sibling_family": "", "via": "sibling", "answer_title": "Construction terminology & structural member identification", "cross_family": false } ] }, { "qid": "KOC-2026-08-2103-Q001", "text": "Ship and engine sailed ?", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "KOC-2026-08-2103", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8029455542564392, "sibling_score": 0.8029455542564392, "answer_score": null, "sibling_qid": "MUM-2026-04-1319-Q001", "sibling_text": "ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7174486517906189, "sibling_score": 0.7174486517906189, "answer_score": null, "sibling_qid": "MUM-2026-01-1250-Q003", "sibling_text": "engine sailed and cross", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.6462827324867249, "sibling_score": 0.6462827324867249, "answer_score": null, "sibling_qid": "MUM-2026-02-1280-Q001", "sibling_text": "type of ship done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false } ] }, { "qid": "KOC-2026-08-2103-Q002", "text": "Hardening ? cross Ques ", "family": "Materials & Metallurgy", "subtopic": "", "tid": "KOC-2026-08-2103", "tray": "new", "candidates": [ { "answer_id": "FUSE-HRC-004", "score": 0.5047008991241455, "sibling_score": 0.5047008991241455, "answer_score": null, "sibling_qid": "MUM-2022-08-1349-Q003", "sibling_text": "hrc cross q", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "HRC fuse – construction, operation, materials, identification", "cross_family": true }, { "answer_id": "SOFT-START-P01-001", "score": 0.4840661585330963, "sibling_score": 0.4840661585330963, "answer_score": null, "sibling_qid": "KOL-2025-07-2818-Q003", "sibling_text": "soft starter cross questions", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Soft Starter — Definition, Purpose and Working", "cross_family": true }, { "answer_id": "A6-NSEC-005", "score": 0.48370474576950073, "sibling_score": 0.48370474576950073, "answer_score": null, "sibling_qid": "MUM-2024-11-0222-Q002", "sibling_text": "seemp all parts cross questions", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP — Part I, II & III", "cross_family": true } ] }, { "qid": "KOC-2026-08-2103-Q006", "text": "Titanium composition and property ? cross ques", "family": "Materials & Metallurgy", "subtopic": "", "tid": "KOC-2026-08-2103", "tray": "new", "candidates": [ { "answer_id": "PTHE-002", "score": 0.5775204300880432, "sibling_score": 0.5775204300880432, "answer_score": 0.4070829480886459, "sibling_qid": "MUM-2017-01-2126-Q006", "sibling_text": "properties of titanium not in favour of using it as plate material", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Plate material, titanium trade-offs and seawater plate selection", "cross_family": true }, { "answer_id": "SGB-212-002", "score": 0.5439692735671997, "sibling_score": 0.5439692735671997, "answer_score": 0.3535025045275688, "sibling_qid": "KOL-2025-03-1974-Q001", "sibling_text": "what is stainless steel composition properties of each material", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Stainless steel — composition and the role of Cr, Ni, C", "cross_family": true }, { "answer_id": "EXHV-P03-006", "score": 0.5376173257827759, "sibling_score": 0.5376173257827759, "answer_score": null, "sibling_qid": "KOL-2022-01-1914-Q004", "sibling_text": "composition of nimonic i answered ni 54 cr 16 co 17 ti and al but he wasn t agree", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve materials — Stellite and Nimonic 80A: composition, use and why", "cross_family": true } ] }, { "qid": "KOC-2026-08-2104-Q006", "text": "Relay- conductor ?", "family": "Electrical - Protection & Relays", "subtopic": "Protection / Relays", "tid": "KOC-2026-08-2104", "tray": "new", "candidates": [ { "answer_id": "PRL-594-002", "score": 0.5792874693870544, "sibling_score": 0.5792874693870544, "answer_score": 0.35757155418395997, "sibling_qid": "KOL-2017-05-2128-Q003", "sibling_text": "relay explain and purpose", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "What is a relay, what is it for, and what are its types?", "cross_family": false }, { "answer_id": "PRL-594-001", "score": 0.5604330897331238, "sibling_score": 0.5604330897331238, "answer_score": null, "sibling_qid": "KOC-2022-09-1195-Q005", "sibling_text": "difference between relay and contractor", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "What is the difference between a relay and a contactor?", "cross_family": false }, { "answer_id": "OCR-185-004", "score": 0.5437942147254944, "sibling_score": 0.5437942147254944, "answer_score": null, "sibling_qid": "MUM-2026-05-3322-Q004", "sibling_text": "idmt relay", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "IDMT, dashpot and relay types", "cross_family": false } ] }, { "qid": "KOC-2026-08-2105-Q001", "text": "Attempt ?", "family": "Status & Introduction", "subtopic": "", "tid": "KOC-2026-08-2105", "tray": "new", "candidates": [ { "answer_id": "IGAT-583-004", "score": 0.46803733706474304, "sibling_score": 0.46803733706474304, "answer_score": null, "sibling_qid": "KOC-2021-07-0013-Q006", "sibling_text": "ig fail what action int", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "As Second Engineer, what actions do you take if the inert gas plant of a crude oil tanker is repeatedly tripping on IG high temperature?", "cross_family": true }, { "answer_id": "PI-211-004", "score": 0.4605492949485779, "sibling_score": 0.4605492949485779, "answer_score": null, "sibling_qid": "KOL-2023-03-2641-Q002", "sibling_text": "dar test", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "PI and DAR — how they relate, their purpose, and acceptable values", "cross_family": true }, { "answer_id": "FCL-P03-001", "score": 0.4462893605232239, "sibling_score": 0.4462893605232239, "answer_score": null, "sibling_qid": "KOL-2020-11-3361-Q003", "sibling_text": "ae timing check", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "AE / auxiliary-engine fuel pump timing check and adjustment", "cross_family": true } ] }, { "qid": "KOC-2026-08-2105-Q002", "text": "Ship and engine sailed ?", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "KOC-2026-08-2105", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8029455542564392, "sibling_score": 0.8029455542564392, "answer_score": null, "sibling_qid": "MUM-2026-04-1319-Q001", "sibling_text": "ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7174486517906189, "sibling_score": 0.7174486517906189, "answer_score": null, "sibling_qid": "MUM-2026-01-1250-Q003", "sibling_text": "engine sailed and cross", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.6462827324867249, "sibling_score": 0.6462827324867249, "answer_score": null, "sibling_qid": "MUM-2026-02-1280-Q001", "sibling_text": "type of ship done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false } ] }, { "qid": "KOC-2026-08-2105-Q003", "text": "Composition of LPG and storage temperature ?", "family": "Cargo Ops - Gas Carriers", "subtopic": "LPG / LNG", "tid": "KOC-2026-08-2105", "tray": "review", "candidates": [ { "answer_id": "LPG-LNG-001", "score": 0.7952417731285095, "sibling_score": 0.7952417731285095, "answer_score": 0.5304723590612411, "sibling_qid": "KOC-2026-08-2105-Q004", "sibling_text": "composition of lng and storage temperature", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "LPG vs LNG – properties, carriage and comparison", "cross_family": false }, { "answer_id": "LPG-LNG-004", "score": 0.6298022866249084, "sibling_score": 0.6298022866249084, "answer_score": null, "sibling_qid": "KOL-2018-03-3128-Q004", "sibling_text": "what is the pressure and temperature of lng during discharging from ship to shore tank at various levels what is the pressure of nitrogen in tank vapouriser pressure", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Loading / discharging, tank pressure, pump and disconnection", "cross_family": false }, { "answer_id": "LPG-LNG-009", "score": 0.6188738942146301, "sibling_score": 0.6188738942146301, "answer_score": 0.4678293257951736, "sibling_qid": "KOC-2022-01-0949-Q006", "sibling_text": "lpg compressor room propane vs butane difference", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Gas-carrier fundamentals and ship-specific traps", "cross_family": false } ] }, { "qid": "KOC-2026-08-2105-Q006", "text": "Process of extraction both LNG and LPG ?", "family": "Cargo Ops - Gas Carriers", "subtopic": "LPG / LNG", "tid": "KOC-2026-08-2105", "tray": "new", "candidates": [ { "answer_id": "LPG-LNG-001", "score": 0.5229459404945374, "sibling_score": 0.5229459404945374, "answer_score": 0.3020149379968643, "sibling_qid": "KOC-2026-08-2105-Q007", "sibling_text": "commercial application of both lng and lpg", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "LPG vs LNG – properties, carriage and comparison", "cross_family": false }, { "answer_id": "MARVS-TANK-001", "score": 0.501186728477478, "sibling_score": 0.501186728477478, "answer_score": null, "sibling_qid": "KOC-2023-11-0242-Q003", "sibling_text": "marvs draw and explain lpg specific", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "MARVS — location, pressure setting, purpose, drawing and how the safety valve works", "cross_family": false }, { "answer_id": "LPG-LNG-009", "score": 0.4922701120376587, "sibling_score": 0.4922701120376587, "answer_score": null, "sibling_qid": "MUM-2026-03-0852-Q016", "sibling_text": "lpg and lng", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Gas-carrier fundamentals and ship-specific traps", "cross_family": false } ] }, { "qid": "KOC-2026-08-2105-Q011", "text": "TEV valve external equalising and internal equalising difference ?", "family": "Refrigeration & AC", "subtopic": "Equalising Line", "tid": "KOC-2026-08-2105", "tray": "review", "candidates": [ { "answer_id": "TEV-TXV-003", "score": 0.6602386236190796, "sibling_score": 0.6602386236190796, "answer_score": 0.48428522944450375, "sibling_qid": "MUM-2026-05-3256-Q005", "sibling_text": "what is externally and internally equalized tev", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Equalizing line — internal vs external equalized TEV", "cross_family": false }, { "answer_id": "EQ-LINE-003", "score": 0.5943999290466309, "sibling_score": 0.5943999290466309, "answer_score": 0.4371254026889801, "sibling_qid": "KOL-2022-04-1674-Q003", "sibling_text": "tev working principle internal and external equalising line why degree of superheat is lesser in external equalising line than internal equalising line how it is maintained", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "TEV working principle — internal vs external equalising, degree of superheat and supercool", "cross_family": false }, { "answer_id": "BPV-315-005", "score": 0.5703363418579102, "sibling_score": 0.5703363418579102, "answer_score": null, "sibling_qid": "MUM-2026-06-3451-Q009", "sibling_text": "function of external equalizing valve", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Equalising line and the back pressure valve", "cross_family": false } ] }, { "qid": "KOC-2026-08-2105-Q012", "text": "ME engine UPS Contents inside the panel ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "UPS", "tid": "KOC-2026-08-2105", "tray": "new", "candidates": [ { "answer_id": "UPS-387-005", "score": 0.4595522880554199, "sibling_score": 0.4595522880554199, "answer_score": 0.2818232268095016, "sibling_qid": "KOC-2025-11-1619-Q006", "sibling_text": "me engine ups specifications and working internal no questions", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "ME engine UPS — specification, internal arrangement and working", "cross_family": false }, { "answer_id": "MSB-ESB-D-001", "score": 0.44287532567977905, "sibling_score": 0.44287532567977905, "answer_score": null, "sibling_qid": "MUM-2026-02-1937-Q003", "sibling_text": "starting pannel maintaince", "sibling_family": "", "via": "sibling", "answer_title": "Main & emergency switchboards: function, construction & ship power distribution", "cross_family": false }, { "answer_id": "MCC-MEB-P02-003", "score": 0.4268095791339874, "sibling_score": 0.4268095791339874, "answer_score": null, "sibling_qid": "KOL-2026-05-4192-Q006", "sibling_text": "me engine describe", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Conventional MC / MC-C versus electronic ME — the practical operating differences", "cross_family": true } ] }, { "qid": "KOC-2026-08-2105-Q013", "text": "Type of ship sailed ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2026-08-2105", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.84583979845047, "sibling_score": 0.84583979845047, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8448489904403687, "sibling_score": 0.8448489904403687, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7927221059799194, "sibling_score": 0.7927221059799194, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "KOC-2026-08-2105-Q015", "text": " ⁠What type of compressor is used on cargo plant ?", "family": "Cargo Ops - Gas Carriers", "subtopic": "Cargo Compressor", "tid": "KOC-2026-08-2105", "tray": "review", "candidates": [ { "answer_id": "CPFE-583-001", "score": 0.7280173897743225, "sibling_score": 0.7280173897743225, "answer_score": null, "sibling_qid": "MUM-2026-01-0682-Q004", "sibling_text": "type of cargo compressor", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "The Framo system — what it is, how it works, and the driving mechanism", "cross_family": false }, { "answer_id": "TC-CONST-005", "score": 0.5980998873710632, "sibling_score": 0.5980998873710632, "answer_score": null, "sibling_qid": "MUM-2025-06-2328-Q003", "sibling_text": "t c compressor", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Compressor/blower side components and air flow", "cross_family": true }, { "answer_id": "CAP-CTRL-002", "score": 0.5593349933624268, "sibling_score": 0.5593349933624268, "answer_score": null, "sibling_qid": "KOL-2017-01-1267-Q002", "sibling_text": "refer compressor unloader working", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "CG-002 · How the cylinder-unloader mechanism works", "cross_family": true } ] }, { "qid": "KOC-2026-08-2105-Q016", "text": "what is the maintenance frequency of compressors ?", "family": "Cargo Ops - Gas Carriers", "subtopic": "", "tid": "KOC-2026-08-2105", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-004", "score": 0.6568921804428101, "sibling_score": 0.6568921804428101, "answer_score": null, "sibling_qid": "MUM-2025-06-0972-Q005", "sibling_text": "main air compressor 500 hrs routine maintenance", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "AE connecting-rod inspection — ovality, trueness, serrations, action if out of limit", "cross_family": true }, { "answer_id": "CO2-SYS-002", "score": 0.6077272295951843, "sibling_score": 0.6077272295951843, "answer_score": null, "sibling_qid": "KOL-2019-05-0284-Q002", "sibling_text": "co2 maintenance yearly bi yearly 5 yearly", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 maintenance, inspection, testing and survey routines", "cross_family": true }, { "answer_id": "FSH-DET-005", "score": 0.6040570735931396, "sibling_score": 0.6040570735931396, "answer_score": null, "sibling_qid": "KOC-2025-08-1568-Q011", "sibling_text": "maintenance for that frequency of interval", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Testing, planned maintenance, fault identification, isolation and circuit protection", "cross_family": true } ] }, { "qid": "KOC-2026-08-2105-Q017", "text": "⁠Capacity of sump ?", "family": "Cargo Ops - Gas Carriers", "subtopic": "", "tid": "KOC-2026-08-2105", "tray": "new", "candidates": [ { "answer_id": "COT-14", "score": 0.5543460845947266, "sibling_score": 0.5543460845947266, "answer_score": null, "sibling_qid": "KOL-2025-08-1024-Q009", "sibling_text": "sbt capacity", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "SBT applicability, capacity and draught criteria", "cross_family": true }, { "answer_id": "bdc-p05-01", "score": 0.5361327528953552, "sibling_score": 0.5361327528953552, "answer_score": null, "sibling_qid": "MUM-2025-10-1707-Q005", "sibling_text": "capacity", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "CQ-BDC-022 Emergency battery on your ship — purpose, type, arrangement and rating Medium", "cross_family": true }, { "answer_id": "OILPOL-OWS-003", "score": 0.5296123623847961, "sibling_score": 0.5296123623847961, "answer_score": 0.4184220716357231, "sibling_qid": "CHE-2026-08-3898-Q004", "sibling_text": "sludge tank capacity", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Sludge tank capacity — how is it calculated?", "cross_family": true } ] }, { "qid": "KOC-2026-08-2107-Q001", "text": "Crane hydraulic diagram with swashplate ?", "family": "Electrical - Motors & Starters", "subtopic": "Windlass / Crane Motor", "tid": "KOC-2026-08-2107", "tray": "review", "candidates": [ { "answer_id": "WIND-CRN-P01-002", "score": 0.7441444993019104, "sibling_score": 0.7441444993019104, "answer_score": 0.4813565492630005, "sibling_qid": "KOC-2024-12-1450-Q003", "sibling_text": "er crane diagram", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Crane motor power & control circuit (draw and explain)", "cross_family": false }, { "answer_id": "HYD-JACK-001", "score": 0.6731044054031372, "sibling_score": 0.6731044054031372, "answer_score": null, "sibling_qid": "KOC-2026-08-2162-Q006", "sibling_text": "hydraulic jack diagram", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Hydraulic jack — construction, components, sealing and basic working", "cross_family": true }, { "answer_id": "AUX-CRANE-009", "score": 0.544490110874176, "sibling_score": null, "answer_score": 0.544490110874176, "sibling_qid": "", "sibling_text": "explaining one crane movement from the crane circuit diagram hoisting power path hoist pump directional control valve hoist motor winch drum raise lower the fall relief valve limits maximum system pressure overload overpressure protection", "sibling_family": "", "via": "answer_title", "answer_title": "Explaining one crane movement from the crane circuit diagram (hoisting)", "cross_family": false } ] }, { "qid": "KOC-2026-08-2107-Q005", "text": "Electrical noise and insulation ?", "family": "Electrical - Motors & Starters", "subtopic": "IR Test / Insulation Resistance", "tid": "KOC-2026-08-2107", "tray": "new", "candidates": [ { "answer_id": "IRT-A-002", "score": 0.5968647599220276, "sibling_score": 0.5968647599220276, "answer_score": null, "sibling_qid": "KOC-2025-10-1599-Q010", "sibling_text": "insulation resistance of motor how it is done on board", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Taking an IR test on a motor - isolation and procedure", "cross_family": false }, { "answer_id": "IRT-A-003", "score": 0.5916189551353455, "sibling_score": 0.5916189551353455, "answer_score": null, "sibling_qid": "CHE-2026-05-0623-Q017", "sibling_text": "explain insulation resistance", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What insulation resistance is, and what a good value looks like", "cross_family": false }, { "answer_id": "IR-TEST-B-002", "score": 0.5909751057624817, "sibling_score": 0.5909751057624817, "answer_score": null, "sibling_qid": "MUM-2026-05-3351-Q005", "sibling_text": "insulation resistance how to do", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "IR test of a low-voltage motor — the standard megger procedure", "cross_family": false } ] }, { "qid": "KOC-2026-08-2107-Q007", "text": "H2S gas reasons in ER ? internal ques", "family": "Cargo Ops - Tankers", "subtopic": "Benzene / H2S Check", "tid": "KOC-2026-08-2107", "tray": "new", "candidates": [ { "answer_id": "COT-P03-01", "score": 0.5440032482147217, "sibling_score": 0.5440032482147217, "answer_score": null, "sibling_qid": "KOC-2021-12-0041-Q003", "sibling_text": "hazards of h2s gas in oil tankers", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "H₂S, benzene and toxic-cargo vapour exposure — hazards, limits, PPE and respirator checks", "cross_family": false }, { "answer_id": "PR-SAFE-A-002", "score": 0.5034162402153015, "sibling_score": 0.5034162402153015, "answer_score": null, "sibling_qid": "KOC-2023-10-0235-Q004", "sibling_text": "limits for h2s co hc o2", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Pump-room fixed gas detection and atmosphere monitoring", "cross_family": false }, { "answer_id": "TCM-374-005", "score": 0.48866671323776245, "sibling_score": 0.48866671323776245, "answer_score": null, "sibling_qid": "CHE-2026-03-0132-Q006", "sibling_text": "ig gas freeing operations why and when and why only through ig", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Gas-freeing a tanker after discharge or before dry dock (why through the IG system)", "cross_family": false } ] }, { "qid": "KOC-2026-08-2108-Q001", "text": "Type of Ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2026-08-2108", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8362351655960083, "sibling_score": 0.8362351655960083, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8017287850379944, "sibling_score": 0.8017287850379944, "answer_score": 0.5469861209392547, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8002189993858337, "sibling_score": 0.8002189993858337, "answer_score": 0.521619999408722, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "KOC-2026-08-2108-Q003", "text": "Thermocouple vs Thermistor, onboard usage, Pt100?", "family": "Automation & Controls", "subtopic": "Thermistor / Thermostat", "tid": "KOC-2026-08-2108", "tray": "review", "candidates": [ { "answer_id": "TPL-SENS-A-003", "score": 0.6896905899047852, "sibling_score": 0.6896905899047852, "answer_score": null, "sibling_qid": "MUM-2025-08-1610-Q002", "sibling_text": "thermocouple and rtd difference what is pt100 what does pt and 100 signify", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Thermocouple principle, Seebeck effect and exhaust-temperature sensing", "cross_family": false }, { "answer_id": "TPL-SENS-A-004", "score": 0.6352598071098328, "sibling_score": 0.6352598071098328, "answer_score": 0.5119444012641906, "sibling_qid": "KOL-2025-03-2770-Q006", "sibling_text": "in pt100 pyrometer what does pt100 denote", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "RTD / Pt100 / Pt200 temperature sensor", "cross_family": false }, { "answer_id": "AUC-SEN-08", "score": 0.63347989320755, "sibling_score": 0.63347989320755, "answer_score": 0.5480931282043456, "sibling_qid": "KOC-2025-02-1493-Q004", "sibling_text": "types of temperature detectors onboard two places where thermocouple used onboard", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Selecting and comparing temperature detectors — RTD, TC and thermistor by service", "cross_family": false } ] }, { "qid": "KOC-2026-08-2108-Q004", "text": " Types of Thermistor?", "family": "Automation & Controls", "subtopic": "Thermistor / Thermostat", "tid": "KOC-2026-08-2108", "tray": "review", "candidates": [ { "answer_id": "AUC-SEN-08", "score": 0.8025949597358704, "sibling_score": 0.8025949597358704, "answer_score": null, "sibling_qid": "KOC-2022-09-1197-Q006", "sibling_text": "thermistor thermocouple and rtd", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Selecting and comparing temperature detectors — RTD, TC and thermistor by service", "cross_family": false }, { "answer_id": "AUC-SEN-07", "score": 0.8004308938980103, "sibling_score": 0.8004308938980103, "answer_score": 0.5836082518100738, "sibling_qid": "KOC-2024-06-1366-Q007", "sibling_text": "diff thermocouple thermistor", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Thermistor versus thermocouple — physics, signal and where each goes onboard", "cross_family": false }, { "answer_id": "AUC-SEN-05", "score": 0.7950507998466492, "sibling_score": 0.7950507998466492, "answer_score": 0.5796117782592773, "sibling_qid": "KOL-2021-09-2493-Q002", "sibling_text": "thermistor full details types of thermistor materials of thermistor in both ptc ntc usage", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Thermistor — principle, NTC and PTC behaviour, and shipboard applications", "cross_family": false } ] }, { "qid": "KOC-2026-08-2108-Q008", "text": "Explain Functional and Error operated AVR?", "family": "Electrical - Generator & Alternator", "subtopic": "AVR / Excitation", "tid": "KOC-2026-08-2108", "tray": "review", "candidates": [ { "answer_id": "AVR-EXC-B-001", "score": 0.8007543683052063, "sibling_score": 0.8007543683052063, "answer_score": 0.418663814663887, "sibling_qid": "KOC-2024-09-1397-Q004", "sibling_text": "error operated and functional avr explain", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Explain the AVR working principle and control-loop operation.", "cross_family": false }, { "answer_id": "AVR-EXC-A-001", "score": 0.781406044960022, "sibling_score": 0.781406044960022, "answer_score": 0.41731154322624203, "sibling_qid": "KOC-2024-08-1380-Q007", "sibling_text": "functional and error operated avr", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "What is the purpose and function of the AVR?", "cross_family": false }, { "answer_id": "AVR-EXC-C-001", "score": 0.7624914050102234, "sibling_score": 0.7624914050102234, "answer_score": 0.4409855902194977, "sibling_qid": "KOL-2019-07-2302-Q003", "sibling_text": "types of avr functional and error operated function", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Types of AVR / excitation and how one is selected", "cross_family": false } ] }, { "qid": "KOC-2026-08-2108-Q010", "text": "Fluorescent lamp? ", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Electrical Components / Electronics", "tid": "KOC-2026-08-2108", "tray": "review", "candidates": [ { "answer_id": "ELEC-ELX-001", "score": 0.8268693089485168, "sibling_score": 0.8268693089485168, "answer_score": 0.5896167427301406, "sibling_qid": "KOC-2024-10-1416-Q003", "sibling_text": "flourescent lamp", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Fluorescent and LED tube-light — choke and starter", "cross_family": false }, { "answer_id": "LT-SRC-012", "score": 0.4591012954711914, "sibling_score": null, "answer_score": 0.4591012954711914, "sibling_qid": "", "sibling_text": "general lighting source residual multi lamp wiring location emergency source solas multi lamp on one switch lamps inparallelacross the supply single switch in the supply line parallel each lamp full voltage one failure does not kill the rest unlike series", "sibling_family": "", "via": "answer_title", "answer_title": "General lighting-source residual: multi-lamp wiring, location & emergency-source SOLAS", "cross_family": false }, { "answer_id": "LT-SRC-006", "score": 0.45779467225074766, "sibling_score": null, "answer_score": 0.45779467225074766, "sibling_qid": "", "sibling_text": "bulb wattage arc and visibility of navigation lights regulated range rule 22 luminous intensity candela annex i 8 arc rule 21 colour wattage is not regulated it is a maker lantern figure to meet the required intensity 60 w filament isrepresentativeonly", "sibling_family": "", "via": "answer_title", "answer_title": "Bulb, wattage, arc and visibility of navigation lights", "cross_family": false } ] }, { "qid": "KOC-2026-08-2108-Q011", "text": "Gas inside of tube? How it is filled vacuum or pressurised?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Electrical Components / Electronics", "tid": "KOC-2026-08-2108", "tray": "new", "candidates": [ { "answer_id": "CB033-C-002", "score": 0.5415925979614258, "sibling_score": 0.5415925979614258, "answer_score": null, "sibling_qid": "CHE-2026-04-0518-Q012", "sibling_text": "decider po explain vcb how the vacuum is maintained any gas type i said sf6", "sibling_family": "", "via": "sibling", "answer_title": "How do you maintain and test a VCB / SF6 breaker, and confirm the vacuum or gas integrity?", "cross_family": false }, { "answer_id": "COT-P02-01", "score": 0.532444417476654, "sibling_score": 0.532444417476654, "answer_score": null, "sibling_qid": "KOL-2022-01-0599-Q002", "sibling_text": "how inert gas is going inside the tank", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Draw and explain the complete tanker inert-gas system from gas production to the cargo tanks, identifying the main plant, control and deck components.", "cross_family": true }, { "answer_id": "MAST-PVA-004", "score": 0.5279959440231323, "sibling_score": 0.5279959440231323, "answer_score": 0.39997244030237195, "sibling_qid": "KOL-2024-08-0850-Q002", "sibling_text": "pv valve location pressure vacuum setting how vacuum is created inside tank", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "P/V valve & P/V breaker — pressure/vacuum settings and the basis", "cross_family": true } ] }, { "qid": "KOC-2026-08-2108-Q013", "text": "Megger test of M.S.W pump?", "family": "Electrical - Motors & Starters", "subtopic": "IR Test / Insulation Resistance", "tid": "KOC-2026-08-2108", "tray": "new", "candidates": [ { "answer_id": "IRT-C-004", "score": 0.6410261988639832, "sibling_score": 0.6410261988639832, "answer_score": null, "sibling_qid": "KOL-2021-10-2505-Q004", "sibling_text": "ir testing of sw pump motorr", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "How to carry out an IR test on a motor", "cross_family": false }, { "answer_id": "MNS-BF039-001", "score": 0.6273278594017029, "sibling_score": 0.6273278594017029, "answer_score": null, "sibling_qid": "KOC-2025-12-1674-Q010", "sibling_text": "motor is dead how will you know how will you do megger testing internal main sea water pump not starting what are all the possible reasons", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Main sea-water pump motor is dead and will not start — how do you find the cause, and what are the possible reasons?", "cross_family": false }, { "answer_id": "IRT-C-001", "score": 0.6198245882987976, "sibling_score": 0.6198245882987976, "answer_score": null, "sibling_qid": "CHE-2026-03-0120-Q008", "sibling_text": "megger working", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "How a megger works — construction & principle", "cross_family": false } ] }, { "qid": "KOC-2026-08-2109-Q001", "text": "Functioning of MSC ?", "family": "IMO Structure & Conventions", "subtopic": "IMO / Committees / Codes", "tid": "KOC-2026-08-2109", "tray": "review", "candidates": [ { "answer_id": "IMO-CC-P01-003", "score": 0.666231632232666, "sibling_score": 0.666231632232666, "answer_score": 0.32681762576103207, "sibling_qid": "KOC-2025-08-0648-Q005", "sibling_text": "msc how it functions", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Name the IMO Committees and Sub-Committees (MSC, MEPC, FAL …) and state their functions.", "cross_family": false }, { "answer_id": "IMO-CODES-P03-003", "score": 0.45967960357666016, "sibling_score": 0.45967960357666016, "answer_score": null, "sibling_qid": "KOC-2026-04-0888-Q006", "sibling_text": "what is msc and latest msc circular", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Latest IMO/MSC: MSC 108, 109, 110 and MSC 111 outcomes", "cross_family": false }, { "answer_id": "IMO-CODES-P03-002", "score": 0.4530279040336609, "sibling_score": 0.4530279040336609, "answer_score": null, "sibling_qid": "KOC-2025-01-0521-Q004", "sibling_text": "msc latest", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": false } ] }, { "qid": "KOC-2026-08-2109-Q002", "text": "TPA and immersion suit ?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Solas Pack A / B", "tid": "KOC-2026-08-2109", "tray": "new", "candidates": [ { "answer_id": "LB-SURV-C-003", "score": 0.523881733417511, "sibling_score": 0.523881733417511, "answer_score": null, "sibling_qid": "CHE-2026-02-0103-Q002", "sibling_text": "immersion suit monthly 6 month and annual maintenance", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Routine maintenance ladder — weekly / monthly / quarterly / 6-monthly onboard checks", "cross_family": false }, { "answer_id": "SCBA-EEBD-005", "score": 0.477836549282074, "sibling_score": 0.477836549282074, "answer_score": 0.3816165626049042, "sibling_qid": "KOL-2017-01-0042-Q005", "sibling_text": "difference between firemans outfit ppa immerssion suit when it is used", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fireman's outfit vs PPA vs immersion suit — what each is, when used", "cross_family": true }, { "answer_id": "LSA-LB-A-008", "score": 0.4478205442428589, "sibling_score": 0.4478205442428589, "answer_score": null, "sibling_qid": "CHE-2025-12-0328-Q005", "sibling_text": "lifeboat sprinkler system testing without immersing into water", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Water-spray (sprinkler) system — testing without launching", "cross_family": false } ] }, { "qid": "KOC-2026-08-2109-Q004", "text": "ORB code D means ?", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "KOC-2026-08-2109", "tray": "new", "candidates": [ { "answer_id": "OWS-ORB-006", "score": 0.5628763437271118, "sibling_score": 0.5628763437271118, "answer_score": null, "sibling_qid": "CHE-2026-05-0634-Q009", "sibling_text": "orb all codes", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "6. Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-002", "score": 0.512204647064209, "sibling_score": 0.512204647064209, "answer_score": null, "sibling_qid": "CHE-2026-05-0543-Q003", "sibling_text": "orb in details", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "The Oil Record Book Part I — purpose, the letter codes, and how entries are made", "cross_family": false }, { "answer_id": "BWM-D1D2-P04-002", "score": 0.5078791975975037, "sibling_score": 0.5078791975975037, "answer_score": 0.2775122821331024, "sibling_qid": "KOC-2022-01-0048-Q013", "sibling_text": "bwms code explain d1 d2 d4", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "D-2 standard and the BWMS Code (ex-G8) — type approval of treatment systems", "cross_family": true } ] }, { "qid": "KOC-2026-08-2109-Q005", "text": "Single phase and 3 phase motor difference ?", "family": "Electrical - Motors & Starters", "subtopic": "Induction Motor (General / Working)", "tid": "KOC-2026-08-2109", "tray": "review", "candidates": [ { "answer_id": "IM-GEN-B-001", "score": 0.7886224389076233, "sibling_score": 0.7886224389076233, "answer_score": null, "sibling_qid": "MUM-2023-10-1406-Q004", "sibling_text": "difference single phase 3 phase induction motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Single-phase induction motor working, starting and capacitor purpose", "cross_family": false }, { "answer_id": "SPHS-B-002", "score": 0.74424809217453, "sibling_score": 0.74424809217453, "answer_score": 0.5602123498916626, "sibling_qid": "KOC-2025-11-1609-Q006", "sibling_text": "single phasing in the motor happens how you will find and what will happen", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What happens to a motor during single phasing — and what happens to the RPM?", "cross_family": false }, { "answer_id": "SPHS-B-006", "score": 0.7253819108009338, "sibling_score": 0.7253819108009338, "answer_score": null, "sibling_qid": "KOL-2017-01-2095-Q003", "sibling_text": "single phasing of motor how u will come to know while running of motor is getting single phase vibration are mechanical and u said phase imbalance how electrical phase imbalnce convrt into mechanical vibrations", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "You said phase imbalance, but vibration is mechanical — how does an electrical imbalance become a mechanical vibration?", "cross_family": false } ] }, { "qid": "KOC-2026-08-2109-Q006", "text": "DC motor AC motor difference ?", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOC-2026-08-2109", "tray": "review", "candidates": [ { "answer_id": "DCMOT-A-001", "score": 0.7287716269493103, "sibling_score": 0.7287716269493103, "answer_score": 0.5394479334354401, "sibling_qid": "KOL-2026-07-4259-Q003", "sibling_text": "construction of induction motor difference between ac motor and dc motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types, characteristics and shipboard use of DC motors", "cross_family": true }, { "answer_id": "ALT-GEN-P04-005", "score": 0.673669695854187, "sibling_score": 0.673669695854187, "answer_score": 0.5312024772167205, "sibling_qid": "KOC-2024-08-1388-Q003", "sibling_text": "ac dc generator difference", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "AC generator versus DC generator, and why ship supply is AC", "cross_family": true }, { "answer_id": "DCMOT-A-002", "score": 0.6595615148544312, "sibling_score": 0.6595615148544312, "answer_score": null, "sibling_qid": "KOC-2025-12-1681-Q008", "sibling_text": "dc motor working", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Working principle, Fleming's rule and testing", "cross_family": true } ] }, { "qid": "KOC-2026-08-2109-Q008", "text": "Reefer compressor lube oil pressure switch working ?", "family": "Refrigeration & AC", "subtopic": "Reefer Compressor", "tid": "KOC-2026-08-2109", "tray": "review", "candidates": [ { "answer_id": "REEF-COMP-002", "score": 0.7972486019134521, "sibling_score": 0.7972486019134521, "answer_score": 0.5148712575435638, "sibling_qid": "KOC-2026-09-2201-Q003", "sibling_text": "refrigeration compressor lub oil low pressure switch working", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Lube-oil low-pressure / differential-pressure trip — how it works, tests and sets", "cross_family": false }, { "answer_id": "REEF-COMP-004", "score": 0.7044097781181335, "sibling_score": 0.7044097781181335, "answer_score": null, "sibling_qid": "NOI-2026-09-0004-Q006", "sibling_text": "lube oil charging in refer compressor", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Charging, replenishing and draining compressor lube oil — including with no charging pump", "cross_family": false }, { "answer_id": "CAP-CTRL-005", "score": 0.6628025770187378, "sibling_score": 0.6628025770187378, "answer_score": null, "sibling_qid": "KOC-2021-12-0947-Q005", "sibling_text": "capacity controller in air conditioning load reduces causing suction pressure in the line reduce a pressure switch located on the suction line of the compressor senses and activate switch to send electrical signal to the capacity control solenoid valve of that particular bank to operate the three way valve to drain the oil from the piston which receives oil from attached lo oil pump", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "CG-005 · What happens as load drops or the room reaches set temperature", "cross_family": false } ] }, { "qid": "KOC-2026-08-2110-Q002", "text": "BWMS D2standard and G7 guidelines ?", "family": "Other Conventions", "subtopic": "Ballast Water Convention / BWM / BWMS", "tid": "KOC-2026-08-2110", "tray": "review", "candidates": [ { "answer_id": "BWM-D1D2-P04-001", "score": 0.7554356455802917, "sibling_score": 0.7554356455802917, "answer_score": 0.4176375150680542, "sibling_qid": "KOC-2025-08-2071-Q010", "sibling_text": "bwms d1 and d2 standard explain g7 guideline", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "D-2 standard and G7 — risk assessment for Regulation A-4 exemptions", "cross_family": false }, { "answer_id": "BWM-D1D2-P03-001", "score": 0.6549752950668335, "sibling_score": 0.6549752950668335, "answer_score": null, "sibling_qid": "KOC-2024-06-0351-Q004", "sibling_text": "bwms d2 standard guidline 7", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Regulation D-2 — ballast water performance / discharge standardHigh", "cross_family": false }, { "answer_id": "BWM-D1D2-P04-002", "score": 0.6254120469093323, "sibling_score": 0.6254120469093323, "answer_score": 0.4281257629394531, "sibling_qid": "KOC-2024-08-0384-Q006", "sibling_text": "what is g8 in bwms explain d2 standards", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "D-2 standard and the BWMS Code (ex-G8) — type approval of treatment systems", "cross_family": false } ] }, { "qid": "KOC-2026-08-2110-Q007", "text": "Windass ? ", "family": "Electrical - Motors & Starters", "subtopic": "Windlass / Crane Motor", "tid": "KOC-2026-08-2110", "tray": "new", "candidates": [ { "answer_id": "WIND-WNCH-010", "score": 0.4648491144180298, "sibling_score": 0.4648491144180298, "answer_score": null, "sibling_qid": "MUM-2025-02-0967-Q009", "sibling_text": "checks on windlass", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Survey prep, checks, routines and maintenance", "cross_family": true }, { "answer_id": "WBRT-001", "score": 0.4572465419769287, "sibling_score": 0.4572465419769287, "answer_score": null, "sibling_qid": "KOL-2025-08-3852-Q007", "sibling_text": "windlass break rendering test", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Carrying out a mooring-winch brake rendering test", "cross_family": true }, { "answer_id": "AUC-SEN-04", "score": 0.45579856634140015, "sibling_score": 0.45579856634140015, "answer_score": 0.36182965636253356, "sibling_qid": "KOC-2023-03-1244-Q004", "sibling_text": "anemometer working", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Anemometer and wind direction indication — working, faults and true vs apparent", "cross_family": true } ] }, { "qid": "KOC-2026-08-2111-Q001", "text": "me c manoeuvring draw and explain ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Transformer Theory", "tid": "KOC-2026-08-2111", "tray": "review", "candidates": [ { "answer_id": "EICU-MAN-P01-003", "score": 0.6580168008804321, "sibling_score": 0.6580168008804321, "answer_score": null, "sibling_qid": "KOC-2024-09-1005-Q003", "sibling_text": "me c manoeuvering explain without diagram", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Main-engine manoeuvring sequence and emergency manoeuvring", "cross_family": true }, { "answer_id": "EICU-MAN-P01-002", "score": 0.6561552286148071, "sibling_score": 0.6561552286148071, "answer_score": 0.5044798284769058, "sibling_qid": "KOC-2026-08-2145-Q005", "sibling_text": "me c manoeuvring explain", "sibling_family": "2-Stroke - ME-C / Electronic Engine", "via": "sibling", "answer_title": "ME / ME-C / ME-B manoeuvring system — diagram and explanation", "cross_family": true }, { "answer_id": "EICU-MAN-P02-001", "score": 0.6191613674163818, "sibling_score": 0.6191613674163818, "answer_score": null, "sibling_qid": "KOC-2026-04-1125-Q005", "sibling_text": "draw any one manouvering diagram i have drawn mc engine", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "MC / MC-C conventional manoeuvring system — handle, microswitches, block valves, reversing servomotor", "cross_family": true } ] }, { "qid": "KOC-2026-08-2111-Q004", "text": "air compressor valve parts ?", "family": "Air Compressor", "subtopic": "Reciprocating Compressor", "tid": "KOC-2026-08-2111", "tray": "review", "candidates": [ { "answer_id": "MAC-598-001", "score": 0.8651291728019714, "sibling_score": 0.8651291728019714, "answer_score": 0.6244889914989471, "sibling_qid": "KOC-2026-08-2162-Q004", "sibling_text": "compressor valve parts", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "The main air compressor valve — arrangement, parts, and why the construction is so complex", "cross_family": false }, { "answer_id": "MAC-353-003", "score": 0.7698282599449158, "sibling_score": 0.7698282599449158, "answer_score": 0.5882108688354492, "sibling_qid": "CHE-2026-03-0489-Q005", "sibling_text": "air compressor valve checks", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Main air compressor suction / delivery valve inspection and overhaul", "cross_family": false }, { "answer_id": "ACRV-003", "score": 0.7565317749977112, "sibling_score": 0.7565317749977112, "answer_score": null, "sibling_qid": "KOL-2017-09-3091-Q002", "sibling_text": "aircompressor relief valve", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Relief valve — requirement, function, and construction/drawing", "cross_family": false } ] }, { "qid": "KOC-2026-08-2111-Q006", "text": "stress corrosion in boiler ?", "family": "NDT & Material Testing", "subtopic": "Material Properties", "tid": "KOC-2026-08-2111", "tray": "review", "candidates": [ { "answer_id": "MATPROP-A-005", "score": 0.7589251399040222, "sibling_score": 0.7589251399040222, "answer_score": null, "sibling_qid": "CHE-2026-09-3931-Q004", "sibling_text": "boiler corrosion", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Corrosion and degradation mechanisms", "cross_family": false }, { "answer_id": "BW-TEST-D-002", "score": 0.6900271773338318, "sibling_score": 0.6900271773338318, "answer_score": 0.5423914074897765, "sibling_qid": "MUM-2026-05-3308-Q004", "sibling_text": "how corrosion occur in boiler", "sibling_family": "Boilers - Water Treatment & Chemistry", "via": "sibling", "answer_title": "Impurities, contamination and the types of boiler corrosion", "cross_family": true }, { "answer_id": "BLR-CHEM-002", "score": 0.6760730743408203, "sibling_score": 0.6760730743408203, "answer_score": 0.5865970194339752, "sibling_qid": "CHE-2026-09-3915-Q006", "sibling_text": "boiler caustic embrittlement", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "2. Caustic embrittlement", "cross_family": true } ] }, { "qid": "KOC-2026-08-2112-Q001", "text": "Written status No of attempt", "family": "Status & Introduction", "subtopic": "", "tid": "KOC-2026-08-2112", "tray": "new", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.47817349433898926, "sibling_score": 0.47817349433898926, "answer_score": null, "sibling_qid": "MUM-2026-03-1294-Q001", "sibling_text": "status of writtens and orals", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": true }, { "answer_id": "EXHV-P01-001", "score": 0.44415968656539917, "sibling_score": 0.44415968656539917, "answer_score": null, "sibling_qid": "CHE-2026-01-0101-Q001", "sibling_text": "types of ship done and exam status", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "BWM-P01-002", "score": 0.40472811460494995, "sibling_score": 0.40472811460494995, "answer_score": null, "sibling_qid": "KOC-2023-05-0184-Q011", "sibling_text": "current status of reg d2", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "", "cross_family": true } ] }, { "qid": "KOC-2026-08-2112-Q002", "text": "cargo ship dry dock interval ?", "family": "Drydock & Underwater Surveys", "subtopic": "DD Preparation / Plans", "tid": "KOC-2026-08-2112", "tray": "review", "candidates": [ { "answer_id": "UWS-391-002", "score": 0.7152538299560547, "sibling_score": 0.7152538299560547, "answer_score": null, "sibling_qid": "KOL-2023-05-0746-Q002", "sibling_text": "underwater survey interval in dry dock", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Interval / period for an underwater (in-water) survey", "cross_family": false }, { "answer_id": "DUS-P3-03", "score": 0.7102207541465759, "sibling_score": 0.7102207541465759, "answer_score": null, "sibling_qid": "MUM-2023-10-0133-Q006", "sibling_text": "what are periods of dry dock", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Docking survey — scope, period and typical requirements", "cross_family": false }, { "answer_id": "DDHSC-010", "score": 0.6793366074562073, "sibling_score": 0.6793366074562073, "answer_score": null, "sibling_qid": "NOI-2026-09-0007-Q003", "sibling_text": "critical period during dry dock", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "What are the forces acting on the ship in drydock and the countermeasures against the resulting stresses?", "cross_family": false } ] }, { "qid": "KOC-2026-08-2112-Q005", "text": "Plimsoll Mark regulation ?", "family": "Load Line Convention", "subtopic": "", "tid": "KOC-2026-08-2112", "tray": "new", "candidates": [ { "answer_id": "LL-CONV-P04-002", "score": 0.6418390274047852, "sibling_score": 0.6418390274047852, "answer_score": 0.4845886051654816, "sibling_qid": "KOL-2018-08-0204-Q005", "sibling_text": "plimsoll marking who assign name some classification society load line purpose", "sibling_family": "", "via": "sibling", "answer_title": "Load Line Convention, certificates, assigning authority and detention risk", "cross_family": false }, { "answer_id": "LLC-P05-001", "score": 0.6162519454956055, "sibling_score": 0.6162519454956055, "answer_score": null, "sibling_qid": "KOL-2025-09-1091-Q010", "sibling_text": "load line marking what all things written there and plimsol marking", "sibling_family": "", "via": "sibling", "answer_title": "Freeboard, deck line, Plimsoll mark, assignment and scantling draft", "cross_family": false }, { "answer_id": "MARGIN-LINE-003", "score": 0.6113570928573608, "sibling_score": 0.6113570928573608, "answer_score": 0.4604758083820343, "sibling_qid": "KOC-2025-10-0667-Q011", "sibling_text": "why margin line not marked permanently this line for design consideration for operational safe limit we have plimsoll mark and load line", "sibling_family": "", "via": "sibling", "answer_title": "Margin line vs deck line, freeboard and the Plimsoll marks", "cross_family": false } ] }, { "qid": "KOC-2026-08-2112-Q008", "text": "nox tier 3 limit, and special area ? ", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "NOx Limits / Tier", "tid": "KOC-2026-08-2112", "tray": "new", "candidates": [ { "answer_id": "AIRP-188-007", "score": 0.5684730410575867, "sibling_score": 0.5684730410575867, "answer_score": 0.35484661906957626, "sibling_qid": "KOL-2019-10-0336-Q005", "sibling_text": "nox regulation tier1 2 3 in detail special area", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "NOx and SOx control under Annex VI (Reg 13 & 14) — limits and abatement", "cross_family": false }, { "answer_id": "A6-NSEC-003", "score": 0.5683229565620422, "sibling_score": 0.5683229565620422, "answer_score": null, "sibling_qid": "MUM-2024-07-0179-Q007", "sibling_text": "nox tier1 and nox2 and 3", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "NOx — formation, limits & reduction (SCR / EGR)", "cross_family": false }, { "answer_id": "EEZ-PSSA-002", "score": 0.4642491042613983, "sibling_score": 0.4642491042613983, "answer_score": null, "sibling_qid": "MUM-2025-11-0587-Q002", "sibling_text": "special areas restrictions", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "MARPOL special area — definition, the annexes, the names, the Annex I rule", "cross_family": true } ] }, { "qid": "KOC-2026-08-2112-Q009", "text": "co2 10 year maintenance ? internal ques", "family": "SOLAS - Fire Safety", "subtopic": "CO2 System", "tid": "KOC-2026-08-2112", "tray": "review", "candidates": [ { "answer_id": "CO2-SYS-002", "score": 0.7644261121749878, "sibling_score": 0.7644261121749878, "answer_score": 0.3953222751617432, "sibling_qid": "KOC-2025-01-0526-Q009", "sibling_text": "co2 2 5 10 year maintenance internal no question", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 maintenance, inspection, testing and survey routines", "cross_family": false }, { "answer_id": "CO2-SYS-P06-001", "score": 0.3962340235710144, "sibling_score": null, "answer_score": 0.3962340235710144, "sibling_qid": "", "sibling_text": "co2 fixed system full maintenance and inspection schedule weekly to 10 yearly and the revised cylinder test regime controlling sources in order solas ii 2 and fss code chapter 5 statutory msc 1 circ 1318 rev 1 imo fixed co2 maintenance guidance 25 may 2021 in india dgs engineering circular 01 of 2022 implements it maker s manual and ship sms pms on top weekly indian dgs mmd layer msc 1 circ 1432 f", "sibling_family": "", "via": "answer_title", "answer_title": "CO2 fixed system — full maintenance and inspection schedule (weekly to 10-yearly, and the revised cylinder-test regime)", "cross_family": false }, { "answer_id": "EGCS-393-004", "score": 0.35149053782224654, "sibling_score": null, "answer_score": 0.35149053782224654, "sibling_qid": "", "sibling_text": "egcs maintenance and the safety arrangements to work on it routine maintenance nozzle and demister cleaning analyser sensor calibration ph turbidity so2 co2 pump and seal service naoh dosing system checks washwater treatment hydrocyclone sludge landed ashore inspection tower internals and packing maker class approved corrosion resistant linings alloys for example gre grp or high alloy for acid cor", "sibling_family": "", "via": "answer_title", "answer_title": "EGCS maintenance and the safety arrangements to work on it", "cross_family": false } ] }, { "qid": "KOC-2026-08-2112-Q012", "text": "how is container secured ? internal ques", "family": "Cargo Ops - Container Ships", "subtopic": "", "tid": "KOC-2026-08-2112", "tray": "new", "candidates": [ { "answer_id": "ESP-A-002", "score": 0.5174562335014343, "sibling_score": 0.5174562335014343, "answer_score": null, "sibling_qid": "MUM-2026-03-0811-Q002", "sibling_text": "why in containers", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "On which ships is ESP applicable, under which statutory framework, and when is it carried out?", "cross_family": true }, { "answer_id": "LRHR-B-003", "score": 0.5157707333564758, "sibling_score": 0.5157707333564758, "answer_score": 0.35687842071056364, "sibling_qid": "KOC-2026-05-0044-Q007", "sibling_text": "internal how two halves of the container of life raft is secured key ans securing straps on both ends of the container what is the sticker in that strap what it mentions key ans a cross mark or scissors mark mentioning do not cut here", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "How are the two halves of the liferaft container held together?", "cross_family": true }, { "answer_id": "DBTB-A-002", "score": 0.4848026931285858, "sibling_score": 0.4848026931285858, "answer_score": null, "sibling_qid": "KOL-2026-05-4216-Q002", "sibling_text": "special construction requirement in container", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Double-bottom tanks: purpose, advantages, disadvantages and stability effect", "cross_family": true } ] }, { "qid": "KOC-2026-08-2113-Q001", "text": "Draw and explain how expansion taking place in EGB ?", "family": "Boilers - Construction & Components", "subtopic": "EGB", "tid": "KOC-2026-08-2113", "tray": "new", "candidates": [ { "answer_id": "FOAM-032-P03-002", "score": 0.5391855239868164, "sibling_score": 0.5391855239868164, "answer_score": null, "sibling_qid": "KOC-2026-08-2116-Q006", "sibling_text": "draw and explain high expansion form system", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "High-expansion foam generator / nozzle arrangement — draw and explain", "cross_family": true }, { "answer_id": "SHELL-PLT-A-001", "score": 0.4727472960948944, "sibling_score": 0.4727472960948944, "answer_score": 0.3408128321170807, "sibling_qid": "MUM-2026-04-0922-Q008", "sibling_text": "explain shell expansion plan", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "The shell expansion plan, and how you identify a plate", "cross_family": true }, { "answer_id": "GA-GI-DWG-001", "score": 0.4727472960948944, "sibling_score": 0.4727472960948944, "answer_score": 0.34743182361125946, "sibling_qid": "MUM-2026-07-3757-Q006", "sibling_text": "explain shell expansion plan", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "1. What is a shell expansion plan and where is it used?", "cross_family": true } ] }, { "qid": "KOC-2026-08-2113-Q006", "text": "Tail shaft taken out. What inspections to be carried out ?", "family": "Drydock & Underwater Surveys", "subtopic": "Stern Tube / Tail Shaft", "tid": "KOC-2026-08-2113", "tray": "review", "candidates": [ { "answer_id": "STERN-TUBE-TAIL-SHAFT-001", "score": 0.7845970988273621, "sibling_score": 0.7845970988273621, "answer_score": null, "sibling_qid": "MUM-2024-11-2251-Q006", "sibling_text": "tail shaft removal and checks", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "STT-BRG-001", "score": 0.7296574711799622, "sibling_score": 0.7296574711799622, "answer_score": 0.5470753401517868, "sibling_qid": "KOC-2026-05-0037-Q001", "sibling_text": "tail end shaft removed what checks", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "8. Tail shaft — survey, condition monitoring, wet test, removal checks and propeller overhang", "cross_family": true }, { "answer_id": "STS-P02-005", "score": 0.724302351474762, "sibling_score": 0.724302351474762, "answer_score": 0.5351953029632568, "sibling_qid": "KOC-2025-07-1932-Q005", "sibling_text": "tail shaft inspection in dry dock and checks", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "STS-P02-05 - Tail shaft removal, drydock inspection and pre-flooding checks", "cross_family": false } ] }, { "qid": "KOC-2026-08-2113-Q007", "text": "Bottom end bearing survey with piston in place ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Bottom End Bearing", "tid": "KOC-2026-08-2113", "tray": "review", "candidates": [ { "answer_id": "BEB-B-001", "score": 0.758229672908783, "sibling_score": 0.758229672908783, "answer_score": null, "sibling_qid": "CHE-2025-12-0460-Q004", "sibling_text": "bottom end bearing survey", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bottom End Bearing — Survey & Inspection", "cross_family": false }, { "answer_id": "AE-CRP-007", "score": 0.5076170921325683, "sibling_score": null, "answer_score": 0.5076170921325683, "sibling_qid": "", "sibling_text": "ae big end bottom end bearing inspection bedding nip and crush thin wall shells inspect wiping pitting back fretting overlay don t scrape renew if the overlay is gone or it s spun clearance by plastigauge bridge gauge or direct journal shell measurement to the maker limit too little seizure too much pounding and low oil pressure", "sibling_family": "", "via": "answer_title", "answer_title": "AE big-end / bottom-end bearing — inspection, bedding, nip and crush", "cross_family": false }, { "answer_id": "SB-PRG-B-004", "score": 0.5075514316558838, "sibling_score": null, "answer_score": 0.5075514316558838, "sibling_qid": "", "sibling_text": "bench overhaul with the piston drawn", "sibling_family": "", "via": "answer_title", "answer_title": "Bench overhaul with the piston drawn", "cross_family": false } ] }, { "qid": "KOC-2026-08-2114-Q002", "text": "PSC code. Explain code 17 and 30 ?", "family": "Surveys - Statutory", "subtopic": "PSC / Flag / RO / CIC / MoU", "tid": "KOC-2026-08-2114", "tray": "new", "candidates": [ { "answer_id": "PSC-004", "score": 0.46820682287216187, "sibling_score": 0.46820682287216187, "answer_score": 0.28069387674331664, "sibling_qid": "MUM-2024-07-2766-Q006", "sibling_text": "what is pr 17", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "4. PSC documents: Form A, Form B, action codes, suspension and detention", "cross_family": false }, { "answer_id": "DCG-003", "score": 0.42979368567466736, "sibling_score": 0.42979368567466736, "answer_score": 0.31578904688358306, "sibling_qid": "KOC-2026-03-0882-Q012", "sibling_text": "psc deficiency code 10", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the PSC deficiency code, which code leads to a detainable deficiency, and can you give an example of a \"clear-ground code\"?", "cross_family": false }, { "answer_id": "BCH-IBC-A-002", "score": 0.4264339208602905, "sibling_score": 0.4264339208602905, "answer_score": null, "sibling_qid": "MUM-2025-09-0443-Q004", "sibling_text": "ibc code chapt 17 18 explain in brief", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "The IBC Code — scope, purpose and application", "cross_family": true } ] }, { "qid": "KOC-2026-08-2115-Q001", "text": "Type of ship ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2026-08-2115", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8367663025856018, "sibling_score": 0.8367663025856018, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8020406365394592, "sibling_score": 0.8020406365394592, "answer_score": 0.5474629700183868, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8004519939422607, "sibling_score": 0.8004519939422607, "answer_score": 0.5221094131469727, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "KOC-2026-08-2115-Q002", "text": "No of attempt ?", "family": "Status & Introduction", "subtopic": "", "tid": "KOC-2026-08-2115", "tray": "new", "candidates": [ { "answer_id": "CHAIN-TENS-A-003", "score": 0.47486305236816406, "sibling_score": 0.47486305236816406, "answer_score": null, "sibling_qid": "MUM-2026-02-2546-Q006", "sibling_text": "6 repeat", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "Chain Tightening Procedure — MC / MC-C / ME", "cross_family": true }, { "answer_id": "RISK-RA-D-002", "score": 0.44567447900772095, "sibling_score": 0.44567447900772095, "answer_score": null, "sibling_qid": "MUM-2024-02-0162-Q007", "sibling_text": "u tried level best risk is not able to control what will u do", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "", "cross_family": true }, { "answer_id": "ANCH-CHN-A-003", "score": 0.44192594289779663, "sibling_score": 0.44192594289779663, "answer_score": null, "sibling_qid": "MUM-2026-01-0726-Q004", "sibling_text": "en number", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Equipment Number & how cable length is decided", "cross_family": true } ] }, { "qid": "KOC-2026-08-2115-Q003", "text": "Engine room to aft diagram ?", "family": "Fault Diagnosis & 2/E Actions", "subtopic": "", "tid": "KOC-2026-08-2115", "tray": "review", "candidates": [ { "answer_id": "KGF-A-004", "score": 0.6776946783065796, "sibling_score": 0.6776946783065796, "answer_score": null, "sibling_qid": "KOC-2025-02-0545-Q004", "sibling_text": "transverse section of engine room diagram", "sibling_family": "", "via": "sibling", "answer_title": "Hull / midship cross-section: draw & identify", "cross_family": false }, { "answer_id": "DBTB-A-001", "score": 0.6714152097702026, "sibling_score": 0.6714152097702026, "answer_score": null, "sibling_qid": "KOC-2024-02-0294-Q005", "sibling_text": "draw tank top diagram of engine room", "sibling_family": "", "via": "sibling", "answer_title": "Double-bottom construction and the structural members fitted", "cross_family": false }, { "answer_id": "KGF-A-001", "score": 0.6512507200241089, "sibling_score": 0.6512507200241089, "answer_score": null, "sibling_qid": "KOC-2024-08-0391-Q001", "sibling_text": "draw transverse c s of engine room showing db tank", "sibling_family": "", "via": "sibling", "answer_title": "Construction terminology & structural member identification", "cross_family": false } ] }, { "qid": "KOC-2026-08-2115-Q004", "text": "Orb code G ?", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "KOC-2026-08-2115", "tray": "new", "candidates": [ { "answer_id": "OWS-ORB-006", "score": 0.5973387360572815, "sibling_score": 0.5973387360572815, "answer_score": null, "sibling_qid": "CHE-2026-05-0634-Q009", "sibling_text": "orb all codes", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "6. Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-002", "score": 0.5055981874465942, "sibling_score": 0.5055981874465942, "answer_score": null, "sibling_qid": "CHE-2026-05-0543-Q003", "sibling_text": "orb in details", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "The Oil Record Book Part I — purpose, the letter codes, and how entries are made", "cross_family": false }, { "answer_id": "ENG-NOM-004", "score": 0.4819408357143402, "sibling_score": 0.4819408357143402, "answer_score": null, "sibling_qid": "MUM-2026-07-3733-Q002", "sibling_text": "what is g", "sibling_family": "", "via": "sibling", "answer_title": "Decode every letter and number: 6S60MC-C and 6S70ME-C", "cross_family": false } ] }, { "qid": "KOC-2026-08-2115-Q006", "text": "Audit survey inspection ?", "family": "ISM Code", "subtopic": "ISM / SMS / Audit", "tid": "KOC-2026-08-2115", "tray": "review", "candidates": [ { "answer_id": "ISM-AUD-P03-001", "score": 0.6959542632102966, "sibling_score": 0.6959542632102966, "answer_score": 0.49546068310737607, "sibling_qid": "KOC-2026-09-2187-Q002", "sibling_text": "audit survey and inspection difference", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Audit vs survey vs inspection; initial vs interim audit", "cross_family": false }, { "answer_id": "ISM-AUDIT-P01-002", "score": 0.6755432486534119, "sibling_score": 0.6755432486534119, "answer_score": null, "sibling_qid": "KOC-2023-12-0253-Q003", "sibling_text": "what are the audits carried in ism survey", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM/SMS audits and verifications — types, who conducts them, intervals and validity", "cross_family": false }, { "answer_id": "AUDIT-IE-004", "score": 0.6670471429824829, "sibling_score": 0.6670471429824829, "answer_score": 0.5042348682880401, "sibling_qid": "KOC-2024-10-0437-Q006", "sibling_text": "audit and survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Difference between audit and survey", "cross_family": true } ] }, { "qid": "KOC-2026-08-2115-Q008", "text": "Machinery automation SOLAS regulations ?", "family": "General Marine Engineering", "subtopic": "Rules and Regulation", "tid": "KOC-2026-08-2115", "tray": "new", "candidates": [ { "answer_id": "BCME-002", "score": 0.5250259637832642, "sibling_score": 0.5250259637832642, "answer_score": 0.4201466470956802, "sibling_qid": "KOC-2026-04-0888-Q008", "sibling_text": "me remote control system regulation as per solas internal", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "SOLAS requirements for remote control of propulsion machinery from the bridge", "cross_family": true }, { "answer_id": "SOLAS-OVW-013", "score": 0.5176535844802856, "sibling_score": 0.5176535844802856, "answer_score": null, "sibling_qid": "KOL-2024-02-0811-Q001", "sibling_text": "what is machinery space as per solas", "sibling_family": "", "via": "sibling", "answer_title": "What is a machinery space as per SOLAS?", "cross_family": false }, { "answer_id": "COW-593-004", "score": 0.5017410516738892, "sibling_score": 0.5017410516738892, "answer_score": null, "sibling_qid": "KOC-2024-10-0444-Q005", "sibling_text": "cow it s solas regulation", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "What are the COW requirements, and to which ships do they apply?", "cross_family": true } ] }, { "qid": "KOC-2026-08-2115-Q011", "text": "Service factor ?", "family": "Electrical - Motors & Starters", "subtopic": "Motor Specification / Ordering", "tid": "KOC-2026-08-2115", "tray": "new", "candidates": [ { "answer_id": "IMSP-007", "score": 0.5277690887451172, "sibling_score": 0.5277690887451172, "answer_score": null, "sibling_qid": "MUM-2026-03-1997-Q006", "sibling_text": "safety factor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What safeties and protections are provided in an induction motor and its starter — overload, short-circuit, thermal? What about a motor on deck, and large three-phase motors?", "cross_family": false }, { "answer_id": "MSB-ESB-B-001", "score": 0.4953453242778778, "sibling_score": 0.4953453242778778, "answer_score": null, "sibling_qid": "KOC-2023-11-1302-Q003", "sibling_text": "msb service", "sibling_family": "", "via": "sibling", "answer_title": "Routine maintenance & health check of the MSB", "cross_family": false }, { "answer_id": "FLP-142-P02-004", "score": 0.4899883270263672, "sibling_score": 0.4899883270263672, "answer_score": null, "sibling_qid": "KOL-2024-02-0817-Q004", "sibling_text": "factor of subdivision gope", "sibling_family": "", "via": "sibling", "answer_title": "Factor of subdivision — what it is", "cross_family": false } ] }, { "qid": "KOC-2026-08-2115-Q014", "text": "Scada and Plc ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "PLC", "tid": "KOC-2026-08-2115", "tray": "review", "candidates": [ { "answer_id": "EPC-P03-001", "score": 0.7641921639442444, "sibling_score": 0.7641921639442444, "answer_score": 0.4752505302429199, "sibling_qid": "KOC-2025-01-1460-Q007", "sibling_text": "plc scada", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a PLC? Where is it used onboard, what are its advantages, and how does it differ from a conventional relay control panel?", "cross_family": false }, { "answer_id": "EPC-P03-005", "score": 0.7338046431541443, "sibling_score": 0.7338046431541443, "answer_score": 0.5092610359191895, "sibling_qid": "KOC-2023-07-1268-Q005", "sibling_text": "scada explain plc what is ladder programming", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is SCADA — where is it used onboard, and what is an HMI?", "cross_family": false }, { "answer_id": "AUC-PLC-02", "score": 0.47808355689048765, "sibling_score": null, "answer_score": 0.47808355689048765, "sibling_qid": "", "sibling_text": "plc architecture modules and the scan cycle modules on a typical rack psu cpu with memory digital input di digital output do analog input ai analog output ao communications special high speed counter motion pid coprocessor rack backplane bus scan cycle has four phases 1 input scan into image table 2 user program execution on the image 3 output image write to physical outputs 4 housekeeping diagnos", "sibling_family": "", "via": "answer_title", "answer_title": "PLC architecture, modules and the scan cycle", "cross_family": false } ] }, { "qid": "KOC-2026-08-2116-Q010", "text": "⁠G7 Regulation ?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "EEDI", "tid": "KOC-2026-08-2116", "tray": "review", "candidates": [ { "answer_id": "BWMS-C-007", "score": 0.6832225322723389, "sibling_score": 0.6832225322723389, "answer_score": 0.43112405538558957, "sibling_qid": "MUM-2026-01-0683-Q008", "sibling_text": "g7 g8 g9 regulations", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "G7, G8 and G9 at a glance", "cross_family": true }, { "answer_id": "BWM-D1D2-P04-001", "score": 0.638603687286377, "sibling_score": 0.638603687286377, "answer_score": 0.40370125621557235, "sibling_qid": "KOC-2025-02-0533-Q003", "sibling_text": "bwm g7 regulation", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "D-2 standard and G7 — risk assessment for Regulation A-4 exemptions", "cross_family": true }, { "answer_id": "BWM-D1D2-P04-002", "score": 0.611503005027771, "sibling_score": 0.611503005027771, "answer_score": null, "sibling_qid": "KOL-2026-02-1166-Q004", "sibling_text": "g8 and g9 regulations", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "D-2 standard and the BWMS Code (ex-G8) — type approval of treatment systems", "cross_family": true } ] }, { "qid": "KOC-2026-08-2117-Q005", "text": "⁠Purifier vertical shaft removal with details ?", "family": "Purifier & Centrifuges", "subtopic": "Purifier Operation / Bowl", "tid": "KOC-2026-08-2117", "tray": "review", "candidates": [ { "answer_id": "PURIF-BOWL-P02-003", "score": 0.713223397731781, "sibling_score": 0.713223397731781, "answer_score": null, "sibling_qid": "KOL-2019-05-3237-Q002", "sibling_text": "purifier vertical shaft overhaul", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Vertical shaft, bowl height, bearings & load support — checks, adjustment, overhaul, renewal", "cross_family": false }, { "answer_id": "PUR-OPS-P01-002", "score": 0.5893906950950623, "sibling_score": 0.5893906950950623, "answer_score": null, "sibling_qid": "CHE-2026-03-0494-Q001", "sibling_text": "purifier overhaul vertical height what you will check", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Purifier — principle, working, and how the self-cleaning bowl closes", "cross_family": false }, { "answer_id": "PUR-DSL-002", "score": 0.5872610807418823, "sibling_score": 0.5872610807418823, "answer_score": null, "sibling_qid": "MUM-2026-03-2599-Q005", "sibling_text": "purifier vertical height", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Purifier overflow after desludging — causes, and checking or adjusting bowl height", "cross_family": false } ] }, { "qid": "KOC-2026-08-2117-Q006", "text": "HPS line diagram as per manual ?", "family": "Boilers - Construction & Components", "subtopic": "Boiler Capacity / Rating", "tid": "KOC-2026-08-2117", "tray": "new", "candidates": [ { "answer_id": "OWS-15PPM-004", "score": 0.5072024464607239, "sibling_score": 0.5072024464607239, "answer_score": null, "sibling_qid": "MUM-2022-08-0034-Q002", "sibling_text": "draw line diagram", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": true }, { "answer_id": "ECON-EGB-001", "score": 0.49931055307388306, "sibling_score": 0.49931055307388306, "answer_score": null, "sibling_qid": "KOL-2019-11-1501-Q001", "sibling_text": "economiser position show on diagram what all in feed line", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Economiser type, location, survey, safety-valve position & feed line", "cross_family": false }, { "answer_id": "LLC-P05-001", "score": 0.49447256326675415, "sibling_score": 0.49447256326675415, "answer_score": null, "sibling_qid": "KOC-2024-08-0391-Q002", "sibling_text": "draw load line diagram", "sibling_family": "", "via": "sibling", "answer_title": "Freeboard, deck line, Plimsoll mark, assignment and scantling draft", "cross_family": false } ] }, { "qid": "KOC-2026-08-2117-Q007", "text": "⁠How unloaded works in LPG cargo compressor ?", "family": "Cargo Ops - Gas Carriers", "subtopic": "Cargo Compressor", "tid": "KOC-2026-08-2117", "tray": "new", "candidates": [ { "answer_id": "CAP-CTRL-002", "score": 0.6409999132156372, "sibling_score": 0.6409999132156372, "answer_score": null, "sibling_qid": "KOL-2017-01-1267-Q002", "sibling_text": "refer compressor unloader working", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "CG-002 · How the cylinder-unloader mechanism works", "cross_family": true }, { "answer_id": "UNL-330-002", "score": 0.6225767731666565, "sibling_score": 0.6225767731666565, "answer_score": 0.4608508229255676, "sibling_qid": "MUM-2026-06-3640-Q004", "sibling_text": "self unloader working of compressor", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Explain the working of the main air compressor unloader.", "cross_family": true }, { "answer_id": "UNL-330-001", "score": 0.5945501923561096, "sibling_score": 0.5945501923561096, "answer_score": 0.48220106661319734, "sibling_qid": "KOL-2026-05-0057-Q006", "sibling_text": "unloader purpose and working in main air compressor", "sibling_family": "", "via": "sibling", "answer_title": "What is the function of the main air compressor unloader?", "cross_family": false } ] }, { "qid": "KOC-2026-08-2117-Q008", "text": "⁠Purpose of intercooler in LPG cargo compressor ?", "family": "Cargo Ops - Gas Carriers", "subtopic": "Cargo Compressor", "tid": "KOC-2026-08-2117", "tray": "review", "candidates": [ { "answer_id": "ICAC-299-001", "score": 0.6767141222953796, "sibling_score": 0.6767141222953796, "answer_score": 0.5194408923387527, "sibling_qid": "KOL-2017-07-1304-Q005", "sibling_text": "why intercooler fitted on air compressor", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Purpose and function of the intercooler and aftercooler", "cross_family": true }, { "answer_id": "MAC-353-002", "score": 0.673889696598053, "sibling_score": 0.673889696598053, "answer_score": 0.5564187347888946, "sibling_qid": "MUM-2022-07-0939-Q006", "sibling_text": "why intercooler in air compressors wanted to hear work reduction as isothermal compression achieved", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Purpose of the intercooler and aftercooler", "cross_family": true }, { "answer_id": "ICAC-299-002", "score": 0.6407241225242615, "sibling_score": 0.6407241225242615, "answer_score": 0.5369226396083832, "sibling_qid": "KOL-2022-09-1712-Q006", "sibling_text": "advantages of having intercooler in compressor tell me practical advantages not energy saving part", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Advantages of intercooling, and the effect if it is absent", "cross_family": true } ] }, { "qid": "KOC-2026-08-2117-Q010", "text": "⁠Stuffing box checks after removal ?", "family": "2-Stroke - Components (Other)", "subtopic": "Stuffing Box / Piston Rod Gland", "tid": "KOC-2026-08-2117", "tray": "review", "candidates": [ { "answer_id": "SB-PRG-B-005", "score": 0.7727733254432678, "sibling_score": 0.7727733254432678, "answer_score": null, "sibling_qid": "MUM-2026-06-3459-Q003", "sibling_text": "stuffing box taken out now what to do checks and conditions", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Ring set, segment identification, checks and clearances", "cross_family": false }, { "answer_id": "SB-PRG-B-001", "score": 0.6666575074195862, "sibling_score": 0.6666575074195862, "answer_score": 0.32387769818305967, "sibling_qid": "CHE-2026-08-0670-Q010", "sibling_text": "stuffing box in place overhaul and all clearances", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "In-situ stuffing box overhaul (piston in the engine)", "cross_family": false }, { "answer_id": "SBPG-A-003", "score": 0.3891637936234474, "sibling_score": null, "answer_score": 0.3891637936234474, "sibling_qid": "", "sibling_text": "stuffing box leakage symptoms drain tank rise running checks source and post assembly confirmation primary symptom stuffing box drain tank level rising faster than usual rings worn carry over passing to the drain tank each unit has its own stuffing box drain line observe per unit to find the offender heavy continuous blackened or unusually contaminated drainings point to the leaking unit", "sibling_family": "", "via": "answer_title", "answer_title": "Stuffing box leakage — symptoms, drain-tank rise, running checks, source and post-assembly confirmation", "cross_family": false } ] }, { "qid": "KOC-2026-08-2118-Q001", "text": "Company", "family": "Status & Introduction", "subtopic": "Company Introduction", "tid": "KOC-2026-08-2118", "tray": "new", "candidates": [ { "answer_id": "LLST-AB-002", "score": 0.6064817309379578, "sibling_score": 0.6064817309379578, "answer_score": null, "sibling_qid": "KOC-2026-03-0873-Q001", "sibling_text": "type of ship company", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false }, { "answer_id": "ETP-344-P03-001", "score": 0.5510105490684509, "sibling_score": 0.5510105490684509, "answer_score": null, "sibling_qid": "KOC-2026-05-0046-Q002", "sibling_text": "company and type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.511883020401001, "sibling_score": 0.511883020401001, "answer_score": null, "sibling_qid": "KOC-2026-08-2106-Q001", "sibling_text": "status of written oral company type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false } ] }, { "qid": "KOC-2026-08-2118-Q002", "text": "No of attempt", "family": "Status & Introduction", "subtopic": "", "tid": "KOC-2026-08-2118", "tray": "new", "candidates": [ { "answer_id": "CHAIN-TENS-A-003", "score": 0.4748630225658417, "sibling_score": 0.4748630225658417, "answer_score": null, "sibling_qid": "MUM-2026-02-2546-Q006", "sibling_text": "6 repeat", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "Chain Tightening Procedure — MC / MC-C / ME", "cross_family": true }, { "answer_id": "RISK-RA-D-002", "score": 0.44567447900772095, "sibling_score": 0.44567447900772095, "answer_score": null, "sibling_qid": "MUM-2024-02-0162-Q007", "sibling_text": "u tried level best risk is not able to control what will u do", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "", "cross_family": true }, { "answer_id": "ANCH-CHN-A-003", "score": 0.44192591309547424, "sibling_score": 0.44192591309547424, "answer_score": null, "sibling_qid": "MUM-2026-01-0726-Q004", "sibling_text": "en number", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Equipment Number & how cable length is decided", "cross_family": true } ] }, { "qid": "KOC-2026-08-2118-Q007", "text": "Explain Chapter 5 in Detail ?", "family": "IMO Structure & Conventions", "subtopic": "SOLAS Chapters", "tid": "KOC-2026-08-2118", "tray": "new", "candidates": [ { "answer_id": "FFH-001", "score": 0.5026029348373413, "sibling_score": 0.5026029348373413, "answer_score": null, "sibling_qid": "KOC-2024-05-0338-Q002", "sibling_text": "explain fsa 5 chapters in fsa", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "What is Formal Safety Assessment (FSA), and what are its five steps?", "cross_family": true }, { "answer_id": "SOLAS-CH-006", "score": 0.4883449077606201, "sibling_score": 0.4883449077606201, "answer_score": null, "sibling_qid": "KOC-2023-07-0201-Q011", "sibling_text": "chapter 4 in detail", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS Chapter IV - radiocommunications and radio certificate", "cross_family": false }, { "answer_id": "SOLAS-CH-015", "score": 0.47664254903793335, "sibling_score": 0.47664254903793335, "answer_score": null, "sibling_qid": "KOC-2024-08-0384-Q009", "sibling_text": "explain reg 5 in detail", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS chapters overview - current count and scope", "cross_family": false } ] }, { "qid": "KOC-2026-08-2119-Q015", "text": "construction of Squirrel cage motor ?", "family": "Electrical - Motors & Starters", "subtopic": "Rotor / Stator", "tid": "KOC-2026-08-2119", "tray": "review", "candidates": [ { "answer_id": "ROT-STAT-A-001", "score": 0.8359847068786621, "sibling_score": 0.8359847068786621, "answer_score": 0.5829690754413605, "sibling_qid": "KOC-2025-12-1672-Q005", "sibling_text": "construction of squirrel cage motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Squirrel-cage rotor — construction, parts and materials", "cross_family": false }, { "answer_id": "ROTSTAT-C-003", "score": 0.8164286017417908, "sibling_score": 0.8164286017417908, "answer_score": null, "sibling_qid": "KOL-2025-08-2826-Q002", "sibling_text": "construction of squirrel cage motor stator winding where fitted", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Stator construction, winding & types", "cross_family": false }, { "answer_id": "SYNC-ASYNC-A-002", "score": 0.5702408224344253, "sibling_score": null, "answer_score": 0.5702408224344253, "sibling_qid": "", "sibling_text": "construction and main parts of a synchronous motor stator frame laminated core slots three phase distributed armature winding terminals insulation and cooling passages rotor shaft rotor body or spider field poles or magnets field winding where fitted retaining hardware and air gap surface", "sibling_family": "", "via": "answer_title", "answer_title": "Construction and main parts of a synchronous motor", "cross_family": false } ] }, { "qid": "KOC-2026-08-2120-Q001", "text": "Attempts, company, status of written?", "family": "Status & Introduction", "subtopic": "", "tid": "KOC-2026-08-2120", "tray": "new", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.6432051062583923, "sibling_score": 0.6432051062583923, "answer_score": null, "sibling_qid": "KOC-2026-08-2106-Q001", "sibling_text": "status of written oral company type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.4617106318473816, "sibling_score": 0.4617106318473816, "answer_score": null, "sibling_qid": "MUM-2026-03-1294-Q001", "sibling_text": "status of writtens and orals", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": true }, { "answer_id": "LLST-AB-002", "score": 0.43906694650650024, "sibling_score": 0.43906694650650024, "answer_score": null, "sibling_qid": "KOC-2026-03-0873-Q001", "sibling_text": "type of ship company", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "KOC-2026-08-2120-Q002", "text": "⁠Chapter 12 SOLAS , 12.4, what is 4.3?", "family": "SOLAS - General", "subtopic": "", "tid": "KOC-2026-08-2120", "tray": "new", "candidates": [ { "answer_id": "SOLAS12-BC-D-002", "score": 0.5227771401405334, "sibling_score": 0.5227771401405334, "answer_score": null, "sibling_qid": "KOC-2024-03-0326-Q004", "sibling_text": "solas chapter 12 chapters explain chapter 4", "sibling_family": "", "via": "sibling", "answer_title": "Regulation 4 — damage stability requirements (and naming all 14 regulations)", "cross_family": false }, { "answer_id": "SOLAS12-C-001", "score": 0.4942359924316406, "sibling_score": 0.4942359924316406, "answer_score": null, "sibling_qid": "CHE-2026-05-0540-Q001", "sibling_text": "solas chapter 12 and 4 complete", "sibling_family": "", "via": "sibling", "answer_title": "Explain SOLAS Chapter XII for bulk carriers — oral-exam overview", "cross_family": false }, { "answer_id": "SOLAS-OVW-010", "score": 0.4938577711582184, "sibling_score": 0.4938577711582184, "answer_score": null, "sibling_qid": "CHE-2025-08-0020-Q002", "sibling_text": "solas chapter 12 and 4 complete", "sibling_family": "", "via": "sibling", "answer_title": "SOLAS Chapter XII — additional safety measures for bulk carriers", "cross_family": false } ] }, { "qid": "KOC-2026-08-2120-Q004", "text": "⁠BWMS G7,D2 ?", "family": "Other Conventions", "subtopic": "Ballast Water Convention / BWM / BWMS", "tid": "KOC-2026-08-2120", "tray": "review", "candidates": [ { "answer_id": "BWM-D1D2-P04-001", "score": 0.7203765511512756, "sibling_score": 0.7203765511512756, "answer_score": 0.30718316733837125, "sibling_qid": "KOC-2024-11-0450-Q008", "sibling_text": "bwms d2 and g7 explain", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "D-2 standard and G7 — risk assessment for Regulation A-4 exemptions", "cross_family": false }, { "answer_id": "BWMS-C-008", "score": 0.687414824962616, "sibling_score": 0.687414824962616, "answer_score": null, "sibling_qid": "KOC-2026-02-0820-Q006", "sibling_text": "g 7 for bwms", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "G7 — risk assessment for regulation A-4 exemptions", "cross_family": false }, { "answer_id": "BWMS-C-007", "score": 0.37299814373254775, "sibling_score": null, "answer_score": 0.37299814373254775, "sibling_qid": "", "sibling_text": "g7 g8 and g9 at a glance g7 risk assessment for regulation a 4 exemptions current 2017 mepc 289 71 g8 approval of bwms now mandatory as the bwms code mepc 300 72 say bwms code", "sibling_family": "", "via": "answer_title", "answer_title": "G7, G8 and G9 at a glance", "cross_family": false } ] }, { "qid": "KOC-2026-08-2121-Q005", "text": "Generator running on desired Kw your ammeter is faulty. Formula for calculating ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Galvanometer / Multimeter / Clamp Meter", "tid": "KOC-2026-08-2121", "tray": "review", "candidates": [ { "answer_id": "PF-D-001", "score": 0.7505521178245544, "sibling_score": 0.7505521178245544, "answer_score": null, "sibling_qid": "KOC-2024-03-1335-Q005", "sibling_text": "one generator running at 500 kw in that ammetter is not working how to find a current calculate", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "How kW, kVA, kVAR, current and the power triangle relate to power factor", "cross_family": true }, { "answer_id": "GMC-583-B-005", "score": 0.7236408591270447, "sibling_score": 0.7236408591270447, "answer_score": null, "sibling_qid": "KOC-2022-08-1189-Q005", "sibling_text": "generator running how to find power if meter is faulty", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Proving a meter faulty, and getting the reading another way", "cross_family": false }, { "answer_id": "PWR-ARA-004", "score": 0.6754429936408997, "sibling_score": 0.6754429936408997, "answer_score": null, "sibling_qid": "KOC-2024-12-1453-Q001", "sibling_text": "calculate kw rating of ae", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Why an alternator is rated in kVA, not kW", "cross_family": false } ] }, { "qid": "KOC-2026-08-2121-Q006", "text": "⁠220v & 440v cable difference ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Step Up / Step Down", "tid": "KOC-2026-08-2121", "tray": "new", "candidates": [ { "answer_id": "EFD-P02-003", "score": 0.6102992296218872, "sibling_score": 0.6102992296218872, "answer_score": null, "sibling_qid": "CHE-2026-05-0643-Q005", "sibling_text": "earth fault 440 220 110 why separate", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Why separate 440V and 220V earth-fault / insulation monitors are provided", "cross_family": false }, { "answer_id": "VOLT-SYS-008", "score": 0.5961381196975708, "sibling_score": 0.5961381196975708, "answer_score": null, "sibling_qid": "KOL-2023-07-2667-Q003", "sibling_text": "different uses of 220 and 440 volt in e r", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Why standard shipboard voltages: 440, 230/220, 110 and 24", "cross_family": false }, { "answer_id": "XFMR-THY-G-007", "score": 0.570264458656311, "sibling_score": 0.570264458656311, "answer_score": null, "sibling_qid": "MUM-2023-09-1401-Q002", "sibling_text": "how 220v supply provided from 440v", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "7. Step-up / step-down: the real purpose onboard", "cross_family": false } ] }, { "qid": "KOC-2026-08-2121-Q008", "text": "⁠single phase motor is reversing what are all the possible causes ?", "family": "Electrical - Motors & Starters", "subtopic": "Reversible Motors", "tid": "KOC-2026-08-2121", "tray": "review", "candidates": [ { "answer_id": "REV-MOT-BF67-001", "score": 0.791140615940094, "sibling_score": 0.791140615940094, "answer_score": 0.5710033148527145, "sibling_qid": "KOC-2026-04-1740-Q004", "sibling_text": "single phase motor single phase connection for reversing", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "How do you reverse a single-phase induction motor — what is the wiring connection?", "cross_family": false }, { "answer_id": "REV-MOT-BF67-002", "score": 0.6894614100456238, "sibling_score": 0.6894614100456238, "answer_score": null, "sibling_qid": "KOC-2026-04-1740-Q003", "sibling_text": "3 phase induction motor reversing", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "How do you reverse a three-phase induction motor — the full procedure?", "cross_family": false }, { "answer_id": "SPHS-B-002", "score": 0.6873298287391663, "sibling_score": 0.6873298287391663, "answer_score": null, "sibling_qid": "KOC-2025-11-1609-Q006", "sibling_text": "single phasing in the motor happens how you will find and what will happen", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What happens to a motor during single phasing — and what happens to the RPM?", "cross_family": false } ] }, { "qid": "KOC-2026-08-2121-Q009", "text": "⁠optical Amplifier ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Transistor / Capacitor", "tid": "KOC-2026-08-2121", "tray": "new", "candidates": [ { "answer_id": "TCAP-B-004", "score": 0.6164382100105286, "sibling_score": 0.6164382100105286, "answer_score": null, "sibling_qid": "KOC-2024-03-1336-Q006", "sibling_text": "explain amplifier circuit", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Draw and explain a transistor amplifier circuit", "cross_family": false }, { "answer_id": "ELEC-ELX-014", "score": 0.61502605676651, "sibling_score": 0.61502605676651, "answer_score": 0.44106199145317077, "sibling_qid": "KOL-2018-12-2250-Q001", "sibling_text": "1 amplifier where use", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Amplifier basics and shipboard uses", "cross_family": false }, { "answer_id": "TCAP-B-002", "score": 0.61152583360672, "sibling_score": 0.61152583360672, "answer_score": 0.4146144986152649, "sibling_qid": "KOL-2022-11-2623-Q001", "sibling_text": "faithful amplification", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Faithful amplification — the conditions", "cross_family": false } ] }, { "qid": "KOC-2026-08-2122-Q006", "text": "Improved high lift safety valve diagram- top part ?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2026-08-2122", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.8425894975662231, "sibling_score": 0.8425894975662231, "answer_score": null, "sibling_qid": "KOC-2026-09-2173-Q003", "sibling_text": "improved high lift safety valve diagram", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "MR-DS-PV-B-006", "score": 0.7023800015449524, "sibling_score": 0.7023800015449524, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q005", "sibling_text": "full bore safety valve diagram", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "6. Deck isolating valve, deck relief/safety devices, and cargo-tank pressure", "cross_family": false }, { "answer_id": "ACSS-002", "score": 0.46961791515350343, "sibling_score": null, "answer_score": 0.46961791515350343, "sibling_qid": "", "sibling_text": "relief safety valves settings testing lifting reasons bursting disc set just above stage working pressure the class standard accumulation limit is about 10 though the exact set point is a maker sms value non isolable from its stage test to the maker s method easing gear or test rig for lifting pressure log and reset", "sibling_family": "", "via": "answer_title", "answer_title": "Relief / safety valves: settings, testing, lifting reasons; bursting disc", "cross_family": false } ] }, { "qid": "KOC-2026-08-2122-Q007", "text": "Thrust bearings clearance measurement Sulzer and man ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Thrust Bearing", "tid": "KOC-2026-08-2122", "tray": "review", "candidates": [ { "answer_id": "THR-BRG-A-001", "score": 0.8161361813545227, "sibling_score": 0.8161361813545227, "answer_score": null, "sibling_qid": "KOC-2023-02-1807-Q005", "sibling_text": "main engine thrust bearing clearance measurement procedure both sulzer and man", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you check, measure, limit and adjust main-engine thrust bearing clearance?", "cross_family": false }, { "answer_id": "TB-BEAR-001", "score": 0.7878833413124084, "sibling_score": 0.7878833413124084, "answer_score": 0.5666986525058746, "sibling_qid": "MUM-2026-06-3516-Q004", "sibling_text": "thrust block clearance measurement procedure both sulzer and man", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Thrust bearing clearance — measurement procedure & value", "cross_family": false }, { "answer_id": "AE-CSB-346-003", "score": 0.5615131974220275, "sibling_score": null, "answer_score": 0.5615131974220275, "sibling_qid": "", "sibling_text": "checking measuring auxiliary engine thrust bearing clearance end float thrust clearance crankshaft axial end float total fore and aft movement not a radial clearance method dial gauge on the shaft free end flywheel face or feeler at the thrust faces lever the shaft fully one way zero lever fully the other way the reading is the total end float", "sibling_family": "", "via": "answer_title", "answer_title": "Checking / measuring auxiliary-engine thrust-bearing clearance (end float)", "cross_family": false } ] }, { "qid": "KOC-2026-08-2143-Q006", "text": "MLC titles?", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOC-2026-08-2143", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.6380265355110168, "sibling_score": 0.6380265355110168, "answer_score": 0.268664912879467, "sibling_qid": "KOC-2026-05-2135-Q011", "sibling_text": "mlc titles explain title 1 explain dmlc part 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "MLC-WRH-B-006", "score": 0.5385270714759827, "sibling_score": 0.5385270714759827, "answer_score": null, "sibling_qid": "MUM-2026-06-3645-Q001", "sibling_text": "certificates of mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false }, { "answer_id": "ISMNC-002", "score": 0.46790167689323425, "sibling_score": 0.46790167689323425, "answer_score": null, "sibling_qid": "MUM-2026-01-0685-Q005", "sibling_text": "mlc mnc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a major non-conformity under the ISM Code? Give the definition and name some.", "cross_family": true } ] }, { "qid": "KOC-2026-08-2145-Q001", "text": "Written and oral status?", "family": "Status & Introduction", "subtopic": "", "tid": "KOC-2026-08-2145", "tray": "review", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.7129664421081543, "sibling_score": 0.7129664421081543, "answer_score": null, "sibling_qid": "MUM-2026-05-3187-Q001", "sibling_text": "status of other orals and written", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": true }, { "answer_id": "EXHV-P01-001", "score": 0.6241359114646912, "sibling_score": 0.6241359114646912, "answer_score": null, "sibling_qid": "MUM-2026-05-2995-Q001", "sibling_text": "written and oral status type of ship and company", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.4969014823436737, "sibling_score": 0.4969014823436737, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q001", "sibling_text": "type of vessel engine make written and oral status", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "KOC-2026-08-2145-Q002", "text": "Company?", "family": "Status & Introduction", "subtopic": "Company Introduction", "tid": "KOC-2026-08-2145", "tray": "new", "candidates": [ { "answer_id": "LLST-AB-002", "score": 0.6064817309379578, "sibling_score": 0.6064817309379578, "answer_score": null, "sibling_qid": "KOC-2026-03-0873-Q001", "sibling_text": "type of ship company", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false }, { "answer_id": "ETP-344-P03-001", "score": 0.5510105490684509, "sibling_score": 0.5510105490684509, "answer_score": null, "sibling_qid": "KOC-2026-05-0046-Q002", "sibling_text": "company and type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.511883020401001, "sibling_score": 0.511883020401001, "answer_score": null, "sibling_qid": "KOC-2026-08-2106-Q001", "sibling_text": "status of written oral company type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false } ] }, { "qid": "KOC-2026-08-2145-Q003", "text": "Ship type?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2026-08-2145", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8141242265701294, "sibling_score": 0.8141242265701294, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.7944194078445435, "sibling_score": 0.7944194078445435, "answer_score": 0.5065768599510193, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7942917943000793, "sibling_score": 0.7942917943000793, "answer_score": 0.5429558545351029, "sibling_qid": "CHE-2026-05-0614-Q001", "sibling_text": "start from type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "KOC-2026-08-2145-Q011", "text": "Gusset stay?", "family": "Boilers - Construction & Components", "subtopic": "Ogee Ring", "tid": "KOC-2026-08-2145", "tray": "new", "candidates": [ { "answer_id": "OGEE-RING-001", "score": 0.5388399958610535, "sibling_score": 0.5388399958610535, "answer_score": null, "sibling_qid": "KOC-2022-01-0954-Q007", "sibling_text": "gusset stay ogee ring", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "The ogee ring: what it is, where it sits, its purpose, and how it's formed and connected", "cross_family": false }, { "answer_id": "FWFB-P02-001", "score": 0.4294624924659729, "sibling_score": 0.4294624924659729, "answer_score": 0.2950646549463272, "sibling_qid": "MUM-2022-10-0061-Q005", "sibling_text": "gusset plate where used", "sibling_family": "", "via": "sibling", "answer_title": "Brackets, knees and gusset plates", "cross_family": false }, { "answer_id": "HATCH-COAM-005", "score": 0.38254696130752563, "sibling_score": 0.38254696130752563, "answer_score": 0.3068326234817505, "sibling_qid": "KOC-2026-02-0799-Q006", "sibling_text": "hatch coming coming stay", "sibling_family": "", "via": "sibling", "answer_title": "What supports, stays or strengthening members are provided for hatch coamings and large hatch openings?", "cross_family": false } ] }, { "qid": "KOC-2026-08-2145-Q012", "text": "Liner wear limits?", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "KOC-2026-08-2145", "tray": "review", "candidates": [ { "answer_id": "CYL-LINER-P01-003", "score": 0.7228147387504578, "sibling_score": 0.7228147387504578, "answer_score": 0.4535761892795563, "sibling_qid": "KOC-2026-08-2146-Q014", "sibling_text": "maximum wear down of liner", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "From the readings: wear, wear rate, units and renewal limits", "cross_family": false }, { "answer_id": "CYL-LINER-P02-003", "score": 0.6866980195045471, "sibling_score": 0.6866980195045471, "answer_score": null, "sibling_qid": "KOL-2024-12-3728-Q005", "sibling_text": "if you use worn down liner more than 0 8 what will happen", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L3 · T044-PART_02-G003High", "cross_family": false }, { "answer_id": "CREQ-542-005", "score": 0.42219382524490356, "sibling_score": null, "answer_score": 0.42219382524490356, "sibling_qid": "", "sibling_text": "no spare available and clearances are out of limit what do you do distinguish build assembly clearance from the maker s maximum wear down condemning limit they are not the same thing past the wear limit on a critical machine with no spare is not a licence to keep running it as normal", "sibling_family": "", "via": "answer_title", "answer_title": "No spare available and clearances are out of limit — what do you do?", "cross_family": false } ] }, { "qid": "KOC-2026-08-2145-Q013", "text": "Liner wears?", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "KOC-2026-08-2145", "tray": "review", "candidates": [ { "answer_id": "CYL-LINER-P02-003", "score": 0.7270616888999939, "sibling_score": 0.7270616888999939, "answer_score": null, "sibling_qid": "MUM-2025-06-1136-Q005", "sibling_text": "liner wear", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L3 · T044-PART_02-G003High", "cross_family": false }, { "answer_id": "CYL-LINER-P02-005", "score": 0.7195549607276917, "sibling_score": 0.7195549607276917, "answer_score": null, "sibling_qid": "MUM-2023-09-2747-Q014", "sibling_text": "liner wear one unit reason", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L5 · T044-PART_02-G005High", "cross_family": false }, { "answer_id": "CYL-LINER-P04-002", "score": 0.6214026808738708, "sibling_score": 0.6214026808738708, "answer_score": null, "sibling_qid": "MUM-2026-09-3959-Q003", "sibling_text": "liner when you will replaced", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Judging, measuring, removing & discarding a cylinder liner", "cross_family": false } ] }, { "qid": "KOC-2026-08-2145-Q017", "text": "Creep where do we find in ME?", "family": "NDT & Material Testing", "subtopic": "Creep / Fatigue Failure", "tid": "KOC-2026-08-2145", "tray": "new", "candidates": [ { "answer_id": "CREEP-FAT-P01-001", "score": 0.5945270657539368, "sibling_score": 0.5945270657539368, "answer_score": 0.2323091223835945, "sibling_qid": "KOL-2025-03-1976-Q004", "sibling_text": "what is creep where it is found", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "What is creep, and where does it occur in a marine engine?", "cross_family": false }, { "answer_id": "CREEP-FAT-P01-005", "score": 0.5600900053977966, "sibling_score": 0.5600900053977966, "answer_score": null, "sibling_qid": "MUM-2025-12-2522-Q006", "sibling_text": "creep def and where found how to reduce", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Creep, engine maintenance, and reducing creep risk", "cross_family": false }, { "answer_id": "CREEP-FAT-P01-007", "score": 0.20902032405138016, "sibling_score": null, "answer_score": 0.20902032405138016, "sibling_qid": "", "sibling_text": "creep with toughness compound question compound prompt creep toughness as two distinct material properties define each cleanly do not blur them creep time dependent permanent deformation under sustained stress at elevated temperature see cr 01", "sibling_family": "", "via": "answer_title", "answer_title": "Creep with toughness (compound question)", "cross_family": false } ] }, { "qid": "KOC-2026-08-2146-Q001", "text": "Type of vessel, engine make, written and oral status?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2026-08-2146", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8373190760612488, "sibling_score": 0.8373190760612488, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q001", "sibling_text": "type of vessel engine make written and oral status", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.7293961644172668, "sibling_score": 0.7293961644172668, "answer_score": null, "sibling_qid": "KOC-2026-08-2106-Q001", "sibling_text": "status of written oral company type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "CN-576-001", "score": 0.4650800466537475, "sibling_score": null, "answer_score": 0.4650800466537475, "sibling_qid": "", "sibling_text": "what are the class notations of the vessel a notation records the standard the hull and machinery were built to the ship type or service and any special features or restrictions typical parts in order construction special survey mark hull character machinery character ship type or service notation additional notations service area restriction", "sibling_family": "", "via": "answer_title", "answer_title": "What are the class notations of the vessel?", "cross_family": false } ] }, { "qid": "KOC-2026-08-2146-Q009", "text": "Gusset stay?", "family": "Boilers - Construction & Components", "subtopic": "Ogee Ring", "tid": "KOC-2026-08-2146", "tray": "new", "candidates": [ { "answer_id": "OGEE-RING-001", "score": 0.5388399958610535, "sibling_score": 0.5388399958610535, "answer_score": null, "sibling_qid": "KOC-2022-01-0954-Q007", "sibling_text": "gusset stay ogee ring", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "The ogee ring: what it is, where it sits, its purpose, and how it's formed and connected", "cross_family": false }, { "answer_id": "FWFB-P02-001", "score": 0.4294624626636505, "sibling_score": 0.4294624626636505, "answer_score": 0.2950646549463272, "sibling_qid": "MUM-2022-10-0061-Q005", "sibling_text": "gusset plate where used", "sibling_family": "", "via": "sibling", "answer_title": "Brackets, knees and gusset plates", "cross_family": false }, { "answer_id": "HATCH-COAM-005", "score": 0.38254696130752563, "sibling_score": 0.38254696130752563, "answer_score": 0.3068326234817505, "sibling_qid": "KOC-2026-02-0799-Q006", "sibling_text": "hatch coming coming stay", "sibling_family": "", "via": "sibling", "answer_title": "What supports, stays or strengthening members are provided for hatch coamings and large hatch openings?", "cross_family": false } ] }, { "qid": "KOC-2026-08-2148-Q004", "text": "What will you do if FCM for one unit fails?", "family": "2-Stroke - Reversing & Maneuvering", "subtopic": "EICU / Manoeuvring System", "tid": "KOC-2026-08-2148", "tray": "new", "candidates": [ { "answer_id": "EICU-MAN-P01-004", "score": 0.5371171236038208, "sibling_score": 0.5371171236038208, "answer_score": null, "sibling_qid": "KOC-2026-08-2145-Q006", "sibling_text": "what happens if one unit ccu fails", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Control-unit failure — CCU / ECU / EICU: can you still run the engine?", "cross_family": false }, { "answer_id": "FIVA-220-002", "score": 0.5254911184310913, "sibling_score": 0.5254911184310913, "answer_score": null, "sibling_qid": "KOL-2024-07-1785-Q002", "sibling_text": "fiva if unit fails what will happen to five", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "FIVA control of fuel injection — timing, quantity and actuation", "cross_family": true }, { "answer_id": "REV-PROC-008", "score": 0.42517155408859253, "sibling_score": 0.42517155408859253, "answer_score": 0.322908142209053, "sibling_qid": "KOC-2021-12-1771-Q002", "sibling_text": "while manoeuvring one unit not reversed what you will do answer for this is don t do anything wait for safe place to anchor then inspect for the problem without one unit reversed engine can be continue to manoeuvred as per manual", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Engine, unit, fuel pump or cam fails to reverse — causes and action", "cross_family": false } ] }, { "qid": "KOC-2026-08-2148-Q017", "text": "What will you compare the SFOC you get with? Internal ques", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "SFOC", "tid": "KOC-2026-08-2148", "tray": "new", "candidates": [ { "answer_id": "SFOC-003", "score": 0.536106288433075, "sibling_score": 0.536106288433075, "answer_score": 0.2600886970758438, "sibling_qid": "MUM-2025-10-2862-Q004", "sibling_text": "sfoc value", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What is the SFOC of your main engine? With BHP, stroke and cylinder oil consumption", "cross_family": false }, { "answer_id": "SFOC-001", "score": 0.5224635004997253, "sibling_score": 0.5224635004997253, "answer_score": 0.25439713448286055, "sibling_qid": "CHE-2026-05-0563-Q012", "sibling_text": "sfoc calculation po deciding questions", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What is SFOC? Definition, formula, unit — and how you get the corrected density", "cross_family": false }, { "answer_id": "SFOC-002", "score": 0.5170267224311829, "sibling_score": 0.5170267224311829, "answer_score": 0.2590698957443237, "sibling_qid": "KOC-2025-02-1030-Q006", "sibling_text": "what is sfoc how sfoc is calculated", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "How do you calculate SFOC on board? The step-by-step procedure", "cross_family": false } ] }, { "qid": "KOC-2026-08-2150-Q003", "text": "LO shore tests?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "LO Test / Analysis", "tid": "KOC-2026-08-2150", "tray": "new", "candidates": [ { "answer_id": "LO-TEST-P01-001", "score": 0.5940558314323425, "sibling_score": 0.5940558314323425, "answer_score": null, "sibling_qid": "KOC-2026-05-0009-Q011", "sibling_text": "onboard lo tests explain", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Onboard lube-oil tests and the viscosity test", "cross_family": false }, { "answer_id": "LO-TEST-P01-003", "score": 0.526482880115509, "sibling_score": 0.526482880115509, "answer_score": null, "sibling_qid": "MUM-2026-04-2960-Q011", "sibling_text": "shore lo analysis methods", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Reading a shore analysis report: metals, FTIR and red flags", "cross_family": false }, { "answer_id": "SHORE-CONN-P03-001", "score": 0.4786335825920105, "sibling_score": 0.4786335825920105, "answer_score": null, "sibling_qid": "KOL-2025-08-2845-Q002", "sibling_text": "checks for shore connection", "sibling_family": "", "via": "sibling", "answer_title": "Taking electrical shore power in dry dock — preparation, checks and procedure", "cross_family": false } ] }, { "qid": "KOC-2026-08-2152-Q001", "text": "Vane pump construction and parts? ", "family": "Pumps - Centrifugal & PD", "subtopic": "Hele-Shaw / Axial Piston", "tid": "KOC-2026-08-2152", "tray": "new", "candidates": [ { "answer_id": "RVSG-213-001", "score": 0.6285973787307739, "sibling_score": 0.6285973787307739, "answer_score": 0.56361625790596, "sibling_qid": "KOC-2024-10-2056-Q004", "sibling_text": "rotary vanes construction and fitment", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Construction, main parts, materials & vane fitment", "cross_family": true }, { "answer_id": "RVSG-213-002", "score": 0.6275064945220947, "sibling_score": 0.6275064945220947, "answer_score": 0.509138125181198, "sibling_qid": "KOL-2016-09-1238-Q004", "sibling_text": "rotary vane steering gear how reversal in direction takes place types of pump used construction of pump", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Working principle, actuation, reversal, movement angle & number of vanes", "cross_family": true }, { "answer_id": "PUMP-CAS-002", "score": 0.6248832941055298, "sibling_score": 0.6248832941055298, "answer_score": null, "sibling_qid": "CHE-2026-04-0504-Q004", "sibling_text": "double voulte centrifugal pump where you get thrust and how the clearance you maintain if gone what will happen external shenoy internal wankadae", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "02. Double-volute casing — why it is used, which thrust it balances, and the clearance in question", "cross_family": false } ] }, { "qid": "KOC-2026-08-2152-Q002", "text": "Vane pump how connected and working?", "family": "Pumps - Centrifugal & PD", "subtopic": "Hele-Shaw / Axial Piston", "tid": "KOC-2026-08-2152", "tray": "new", "candidates": [ { "answer_id": "PUMP-CAS-002", "score": 0.602031409740448, "sibling_score": 0.602031409740448, "answer_score": null, "sibling_qid": "CHE-2026-04-0504-Q004", "sibling_text": "double voulte centrifugal pump where you get thrust and how the clearance you maintain if gone what will happen external shenoy internal wankadae", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "02. Double-volute casing — why it is used, which thrust it balances, and the clearance in question", "cross_family": false }, { "answer_id": "RVSG-213-002", "score": 0.5930718779563904, "sibling_score": 0.5930718779563904, "answer_score": 0.49900178909301757, "sibling_qid": "KOL-2016-09-1238-Q004", "sibling_text": "rotary vane steering gear how reversal in direction takes place types of pump used construction of pump", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Working principle, actuation, reversal, movement angle & number of vanes", "cross_family": true }, { "answer_id": "HSAP-583-A-001", "score": 0.5879114270210266, "sibling_score": 0.5879114270210266, "answer_score": null, "sibling_qid": "KOC-2022-02-0956-Q010", "sibling_text": "heleshew pump diagram working", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Hele-Shaw pump: construction and working — draw and explain", "cross_family": false } ] }, { "qid": "KOC-2026-08-2152-Q005", "text": "If Rudder jumping clearance is large where force will act? How rudder supported", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOC-2026-08-2152", "tray": "new", "candidates": [ { "answer_id": "RVSG-213-005", "score": 0.6176437735557556, "sibling_score": 0.6176437735557556, "answer_score": 0.5021411806344985, "sibling_qid": "KOC-2022-05-0963-Q006", "sibling_text": "rudder jumping clearence increased what s your actions", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Jumping clearance, thrust accommodation, stock connection & overhaul", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.6131098866462708, "sibling_score": 0.6131098866462708, "answer_score": null, "sibling_qid": "KOL-2016-12-0036-Q005", "sibling_text": "rudder jumping clearance weardown clearance", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "TRS-002", "score": 0.5788286328315735, "sibling_score": 0.5788286328315735, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false } ] }, { "qid": "KOC-2026-08-2152-Q009", "text": "How water in scrubber comes, how level maintained in scrubber?", "family": "Cargo Ops - Tankers", "subtopic": "IG System", "tid": "KOC-2026-08-2152", "tray": "new", "candidates": [ { "answer_id": "COT-P02-05", "score": 0.6009913086891174, "sibling_score": 0.6009913086891174, "answer_score": 0.3898704543709755, "sibling_qid": "KOC-2024-01-0289-Q009", "sibling_text": "ig system why need water inside scrubber tower from where the flue gas getting pressure to pass through the scrubber water where the blowers located", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Draw and explain the inert-gas scrubber tower, including its internal parts, cooling/cleaning action, water supply and safety monitoring.", "cross_family": false }, { "answer_id": "IGAT-583-001", "score": 0.5123587846755981, "sibling_score": 0.5123587846755981, "answer_score": null, "sibling_qid": "KOC-2023-04-0180-Q002", "sibling_text": "ig system alarms and trips how backflow is prevented in ig scrubber", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "State all the alarms, trips and safety cut-outs provided on a tanker inert gas (IG) system.", "cross_family": false }, { "answer_id": "EGCS-393-003", "score": 0.4897083342075348, "sibling_score": 0.4897083342075348, "answer_score": null, "sibling_qid": "MUM-2022-12-0072-Q006", "sibling_text": "scrubber system what all values monitor", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Monitored parameters, records and washwater discharge criteria", "cross_family": true } ] }, { "qid": "KOC-2026-08-2152-Q010", "text": "Explain passage of gas in scrubber system?", "family": "Cargo Ops - Tankers", "subtopic": "IG System", "tid": "KOC-2026-08-2152", "tray": "new", "candidates": [ { "answer_id": "COT-P02-05", "score": 0.5997330546379089, "sibling_score": 0.5997330546379089, "answer_score": 0.44379186630249023, "sibling_qid": "KOC-2024-01-0289-Q009", "sibling_text": "ig system why need water inside scrubber tower from where the flue gas getting pressure to pass through the scrubber water where the blowers located", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Draw and explain the inert-gas scrubber tower, including its internal parts, cooling/cleaning action, water supply and safety monitoring.", "cross_family": false }, { "answer_id": "EGCS-393-002", "score": 0.5139018297195435, "sibling_score": 0.5139018297195435, "answer_score": null, "sibling_qid": "KOC-2022-04-0070-Q009", "sibling_text": "closed loop scrubber", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "EGCS types, components and working — open, closed and hybrid loop", "cross_family": true }, { "answer_id": "IGAT-583-001", "score": 0.5124387741088867, "sibling_score": 0.5124387741088867, "answer_score": null, "sibling_qid": "KOC-2023-04-0180-Q002", "sibling_text": "ig system alarms and trips how backflow is prevented in ig scrubber", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "State all the alarms, trips and safety cut-outs provided on a tanker inert gas (IG) system.", "cross_family": false } ] }, { "qid": "KOC-2026-08-2153-Q003", "text": "Compensating ring?", "family": "Boilers - Construction & Components", "subtopic": "Ogee Ring", "tid": "KOC-2026-08-2153", "tray": "new", "candidates": [ { "answer_id": "OGEE-RING-001", "score": 0.5156327486038208, "sibling_score": 0.5156327486038208, "answer_score": null, "sibling_qid": "KOL-2025-07-1819-Q006", "sibling_text": "ogee ring how fitted", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "The ogee ring: what it is, where it sits, its purpose, and how it's formed and connected", "cross_family": false }, { "answer_id": "PRING-B-004", "score": 0.4884679317474365, "sibling_score": 0.4884679317474365, "answer_score": null, "sibling_qid": "KOC-2025-08-1570-Q015", "sibling_text": "liner how many rings show me positions", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Function, sealing, position & arrangement", "cross_family": true }, { "answer_id": "SB-PRG-B-005", "score": 0.3778745234012604, "sibling_score": null, "answer_score": 0.3778745234012604, "sibling_qid": "", "sibling_text": "ring set segment identification checks and clearances", "sibling_family": "", "via": "answer_title", "answer_title": "Ring set, segment identification, checks and clearances", "cross_family": false } ] }, { "qid": "KOC-2026-08-2153-Q004", "text": "Ammonia slip explain?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Methane Slip", "tid": "KOC-2026-08-2153", "tray": "review", "candidates": [ { "answer_id": "AV6-P03-03", "score": 0.7270626425743103, "sibling_score": 0.7270626425743103, "answer_score": 0.3447054699063301, "sibling_qid": "KOC-2026-09-2209-Q002", "sibling_text": "ammonia slip", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "SCR operation, urea/ammonia dosing and ammonia slip — 2/E responsibilities", "cross_family": false }, { "answer_id": "MSLIP-330-001", "score": 0.5511873364448547, "sibling_score": 0.5511873364448547, "answer_score": 0.3684754490852356, "sibling_qid": "CHE-2026-05-0631-Q014", "sibling_text": "methane slip", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What is methane slip?", "cross_family": false }, { "answer_id": "BIO-FUEL-004", "score": 0.3581870704889297, "sibling_score": null, "answer_score": 0.3581870704889297, "sibling_qid": "", "sibling_text": "ammonia injection in the electronically controlled me two stroke ammonia nh3 carbon free at the point of use no co2 from combustion made from hydrogen via the haber bosch process poor combustion high autoignition temperature narrow flammability low flame speed needs a pilot fuel like methanol so it stays dual fuel", "sibling_family": "", "via": "answer_title", "answer_title": "Ammonia injection in the electronically-controlled (ME) two-stroke", "cross_family": false } ] }, { "qid": "KOC-2026-08-2153-Q010", "text": "Top brazing and values of load?", "family": "Workshop & Welding", "subtopic": "Welding / Brazing / Soldering", "tid": "KOC-2026-08-2153", "tray": "new", "candidates": [ { "answer_id": "TOP-BRC-002", "score": 0.49998384714126587, "sibling_score": 0.49998384714126587, "answer_score": null, "sibling_qid": "KOL-2017-08-1318-Q004", "sibling_text": "what is top brazing it s functions and types", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "2. Types and working — mechanical (friction) and hydraulic", "cross_family": true }, { "answer_id": "WELD-B-002", "score": 0.4746723771095276, "sibling_score": 0.4746723771095276, "answer_score": 0.298690065741539, "sibling_qid": "CHE-2026-03-0489-Q007", "sibling_text": "what is brazing how to do brazing", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Brazing and soldering — procedure, flux, filler, temperature and the difference from welding", "cross_family": false }, { "answer_id": "TOP-BRC-003", "score": 0.4681738615036011, "sibling_score": 0.4681738615036011, "answer_score": null, "sibling_qid": "KOL-2022-07-3552-Q001", "sibling_text": "top bracing function and test", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "3. Checks, testing, maintenance, overhaul and malfunction", "cross_family": true } ] }, { "qid": "KOC-2026-08-2154-Q003", "text": "Fuel advancement?", "family": "Fuel Oil System", "subtopic": "Service / Settling Tank", "tid": "KOC-2026-08-2154", "tray": "new", "candidates": [ { "answer_id": "BDN-001-002", "score": 0.5680662989616394, "sibling_score": 0.5680662989616394, "answer_score": null, "sibling_qid": "MUM-2025-12-0618-Q011", "sibling_text": "latest fuel amendment", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Latest amendment — the flashpoint entry", "cross_family": true }, { "answer_id": "ALT-FUEL-007", "score": 0.5643994808197021, "sibling_score": 0.5643994808197021, "answer_score": null, "sibling_qid": "MUM-2026-01-0674-Q004", "sibling_text": "e fuel", "sibling_family": "Fuel Oil System", "via": "sibling", "answer_title": "What is e-fuel in the context of marine decarbonisation?", "cross_family": false }, { "answer_id": "VIT-MECH-D-001", "score": 0.5631965398788452, "sibling_score": 0.5631965398788452, "answer_score": null, "sibling_qid": "KOL-2021-08-3445-Q003", "sibling_text": "super vit commencement of fuel", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Super-VIT — construction and working (double-thread / upper-lower thread)", "cross_family": true } ] }, { "qid": "KOC-2026-08-2154-Q004", "text": "Boiler foundation?", "family": "Boilers - General", "subtopic": "Boiler Miscellaneous", "tid": "KOC-2026-08-2154", "tray": "new", "candidates": [ { "answer_id": "BLR-SURV-P02-004", "score": 0.6488761305809021, "sibling_score": 0.6488761305809021, "answer_score": null, "sibling_qid": "MUM-2026-06-3564-Q002", "sibling_text": "tests on boiler structure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": true }, { "answer_id": "FURN-REF-001", "score": 0.5967338681221008, "sibling_score": 0.5967338681221008, "answer_score": null, "sibling_qid": "CHE-2026-08-3886-Q008", "sibling_text": "boiler refractory material support", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Boiler refractory — materials, types, composition and acidic / basic refractory", "cross_family": true }, { "answer_id": "FURN-REF-004", "score": 0.5954279899597168, "sibling_score": 0.5954279899597168, "answer_score": null, "sibling_qid": "KOL-2018-01-1345-Q003", "sibling_text": "boiler furnace construction", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Boiler furnace construction, corrugation, swirl / contraction and furnace mountings", "cross_family": true } ] }, { "qid": "KOC-2026-08-2154-Q006", "text": "SCR function?", "family": "", "subtopic": "", "tid": "KOC-2026-08-2154", "tray": "new", "candidates": [ { "answer_id": "AV6-P03-02", "score": 0.6251164674758911, "sibling_score": 0.6251164674758911, "answer_score": null, "sibling_qid": "CHE-2025-12-0230-Q010", "sibling_text": "scr operation", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SCR for marine NOx control — meaning, working principle, chemistry and system components", "cross_family": false }, { "answer_id": "AV6-P03-04", "score": 0.6125754117965698, "sibling_score": 0.6125754117965698, "answer_score": null, "sibling_qid": "KOL-2025-12-1827-Q007", "sibling_text": "function of scr hpscr lpscr", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "HP SCR versus LP SCR — pre-turbine and post-turbine arrangements", "cross_family": false }, { "answer_id": "SCR-306-A-004", "score": 0.6011775732040405, "sibling_score": 0.6011775732040405, "answer_score": null, "sibling_qid": "KOL-2022-09-2610-Q006", "sibling_text": "scr uses", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Applications and onboard uses", "cross_family": false } ] }, { "qid": "KOC-2026-08-2155-Q001", "text": "Exam status?", "family": "Status & Introduction", "subtopic": "", "tid": "KOC-2026-08-2155", "tray": "review", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.693558931350708, "sibling_score": 0.693558931350708, "answer_score": null, "sibling_qid": "MUM-2026-01-1252-Q001", "sibling_text": "status of results oral written exam", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": true }, { "answer_id": "EXHV-P01-001", "score": 0.679936945438385, "sibling_score": 0.679936945438385, "answer_score": null, "sibling_qid": "CHE-2026-01-0101-Q001", "sibling_text": "types of ship done and exam status", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "DUS-P1-02", "score": 0.5718648433685303, "sibling_score": 0.5718648433685303, "answer_score": null, "sibling_qid": "KOL-2025-08-3851-Q006", "sibling_text": "drydock plans rudder checks cross questions what about other written oral exams status told waiting for naval written result to come all other paper cleared", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Plans, drawings and special tools kept ready for drydock — engine-department view", "cross_family": true } ] }, { "qid": "KOC-2026-08-2155-Q002", "text": "Types of cam? how cam is fitted?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Chocks (Resin/Metal)", "tid": "KOC-2026-08-2155", "tray": "new", "candidates": [ { "answer_id": "FCAM-LEAD-P04-001", "score": 0.5632489919662476, "sibling_score": 0.5632489919662476, "answer_score": 0.42163996696472167, "sibling_qid": "KOL-2024-12-1794-Q006", "sibling_text": "by internal type of cam", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel cam lead, cam profile, negative cam and cam slip", "cross_family": true }, { "answer_id": "CAM-437-001", "score": 0.5248857140541077, "sibling_score": 0.5248857140541077, "answer_score": null, "sibling_qid": "KOC-2026-01-1090-Q007", "sibling_text": "cam function internal gasket types got 6 4b repeat", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Function of the camshaft in a main (MC) engine", "cross_family": true }, { "answer_id": "MEB-MEC-P03-002", "score": 0.4997050166130066, "sibling_score": 0.4997050166130066, "answer_score": null, "sibling_qid": "KOL-2025-03-1971-Q003", "sibling_text": "in me engine who does the cam job", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "ME camless control architecture — ECS, CCU, EICU, MPC", "cross_family": true } ] }, { "qid": "KOC-2026-08-2155-Q003", "text": "Material of cam?", "family": "MARPOL - General & Compliance", "subtopic": "Bunker Sample Storage", "tid": "KOC-2026-08-2155", "tray": "new", "candidates": [ { "answer_id": "BUNK-SAMP-004", "score": 0.5999248623847961, "sibling_score": 0.5999248623847961, "answer_score": null, "sibling_qid": "KOC-2025-02-2060-Q017", "sibling_text": "material", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Sample container, material, quantity, marking and bottles", "cross_family": false }, { "answer_id": "FCAM-LEAD-P04-001", "score": 0.5529929399490356, "sibling_score": 0.5529929399490356, "answer_score": null, "sibling_qid": "MUM-2025-09-2831-Q006", "sibling_text": "casted cam", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel cam lead, cam profile, negative cam and cam slip", "cross_family": true }, { "answer_id": "CAM-437-001", "score": 0.5500136613845825, "sibling_score": 0.5500136613845825, "answer_score": null, "sibling_qid": "KOC-2025-12-1081-Q001", "sibling_text": "function of cam", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Function of the camshaft in a main (MC) engine", "cross_family": true } ] }, { "qid": "KOC-2026-08-2155-Q008", "text": "Sea water pump casing stuck how to remove?", "family": "Pumps - Centrifugal & PD", "subtopic": "Centrifugal Pump", "tid": "KOC-2026-08-2155", "tray": "review", "candidates": [ { "answer_id": "WRG-001", "score": 0.7443329691886902, "sibling_score": 0.7443329691886902, "answer_score": null, "sibling_qid": "MUM-2022-10-2151-Q005", "sibling_text": "casing ring stuck in sw pump how to take out", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "What the wear ring is for, where it sits, how many, which part rotates — and why a sleeve is used", "cross_family": false }, { "answer_id": "PCD-P02-05", "score": 0.661928653717041, "sibling_score": 0.661928653717041, "answer_score": null, "sibling_qid": "KOL-2021-07-3430-Q002", "sibling_text": "main sea water pump survey how to use slacken shaft if no spare available what to do with pitting marks", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Centrifugal / sea-water pump shaft repair — worn shaft, no spare", "cross_family": false }, { "answer_id": "PCD-P03-03", "score": 0.649414598941803, "sibling_score": 0.649414598941803, "answer_score": null, "sibling_qid": "MUM-2025-02-2270-Q003", "sibling_text": "main csw pump mechanical seal removal without opening motor", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Mechanical seal — construction, materials, fitting, removal and leakage", "cross_family": false } ] }, { "qid": "KOC-2026-08-2155-Q011", "text": "Why cast iron is not for ship hull?", "family": "NDT & Material Testing", "subtopic": "Material Properties", "tid": "KOC-2026-08-2155", "tray": "new", "candidates": [ { "answer_id": "STEEL-GR-002", "score": 0.5947197675704956, "sibling_score": 0.5947197675704956, "answer_score": 0.4311876893043518, "sibling_qid": "KOC-2026-09-2210-Q007", "sibling_text": "difference between cast iron and mild steel and where all this material is used onboard", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Mild steel — composition, use, and how it differs from cast iron", "cross_family": false }, { "answer_id": "STEEL-GR-001", "score": 0.5842731595039368, "sibling_score": 0.5842731595039368, "answer_score": null, "sibling_qid": "KOL-2024-05-0835-Q001", "sibling_text": "material in ship building other than mild steel", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Materials and steel grades for ship and hull construction", "cross_family": false }, { "answer_id": "MATPROP-A-003", "score": 0.5724346041679382, "sibling_score": 0.5724346041679382, "answer_score": null, "sibling_qid": "KOL-2021-10-1633-Q002", "sibling_text": "cast iron advantage", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Cast iron: grey, white, nodular; versus cast steel", "cross_family": false } ] }, { "qid": "KOC-2026-08-2156-Q001", "text": "Carbon foot print new amendment?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "CII / Carbon Intensity", "tid": "KOC-2026-08-2156", "tray": "new", "candidates": [ { "answer_id": "MEPC-GHG-005", "score": 0.6115769743919373, "sibling_score": 0.6115769743919373, "answer_score": null, "sibling_qid": "KOC-2024-05-0343-Q009", "sibling_text": "some new ammendment related to green house gas", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "The IMO GHG Strategy and its revised version — the new and latest GHG measures, the strategy on CO2, and the requirements for reducing GHG.", "cross_family": false }, { "answer_id": "MEPC-GHG-001", "score": 0.5711801648139954, "sibling_score": 0.5711801648139954, "answer_score": null, "sibling_qid": "KOL-2023-12-0792-Q005", "sibling_text": "latest amendments for ghg", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What was decided at the latest MEPC meeting? Explain the latest MEPC circular and outcomes.", "cross_family": false }, { "answer_id": "CII-107-P04-003", "score": 0.5530908703804016, "sibling_score": 0.5530908703804016, "answer_score": null, "sibling_qid": "CHE-2025-09-0059-Q008", "sibling_text": "cii carbon catch and carbon foot print x questions", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "CII within the family — EEXI, EEDI, SEEMP, DCS, the GHG strategy and the regional rules", "cross_family": false } ] }, { "qid": "KOC-2026-08-2156-Q006", "text": "Protection for overboard valve?", "family": "Auxiliary Equipment", "subtopic": "VALVES", "tid": "KOC-2026-08-2156", "tray": "new", "candidates": [ { "answer_id": "SEA-CHEST-006", "score": 0.6192113161087036, "sibling_score": 0.6192113161087036, "answer_score": null, "sibling_qid": "KOC-2023-03-1813-Q010", "sibling_text": "overboard valve low sea chest valve as 2nd how will u prolong it s life without crack", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "2/E actions: leak, crack, fouling, stuck valve, valve-life", "cross_family": true }, { "answer_id": "WIND-WNCH-003", "score": 0.56057208776474, "sibling_score": 0.56057208776474, "answer_score": null, "sibling_qid": "KOC-2023-10-0985-Q006", "sibling_text": "hydraulic tank for mooring winch overflow reason not accepting non return valve leaky", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Hydraulic drive: motor, pump, circuit and line identification", "cross_family": false }, { "answer_id": "FFF-A-003", "score": 0.5474284887313843, "sibling_score": 0.5474284887313843, "answer_score": null, "sibling_qid": "CHE-2026-02-0111-Q001S5", "sibling_text": "isolation valve its safeties", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fire main, hydrants, isolating and deck valves, and fire-line fittings", "cross_family": true } ] }, { "qid": "KOC-2026-08-2156-Q007", "text": "What we will do when overboard valve crack?", "family": "Auxiliary Equipment", "subtopic": "VALVES", "tid": "KOC-2026-08-2156", "tray": "new", "candidates": [ { "answer_id": "SEA-CHEST-006", "score": 0.5874925255775452, "sibling_score": 0.5874925255775452, "answer_score": null, "sibling_qid": "KOC-2023-03-1813-Q010", "sibling_text": "overboard valve low sea chest valve as 2nd how will u prolong it s life without crack", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "2/E actions: leak, crack, fouling, stuck valve, valve-life", "cross_family": true }, { "answer_id": "SBD-003", "score": 0.5645449757575989, "sibling_score": 0.5645449757575989, "answer_score": null, "sibling_qid": "KOC-2022-04-0072-Q021", "sibling_text": "boiler blowdown overboard valve leaking what what would you do", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "How is the boiler blowdown valve fitted on the ship's side and how are the blowdown valves arranged? What is the blowdown pressure and its significance? The overboard blowdown valve is leaking — what do you do?", "cross_family": true }, { "answer_id": "METAL-LOCK-003", "score": 0.5631110668182373, "sibling_score": 0.5631110668182373, "answer_score": null, "sibling_qid": "MUM-2025-05-0277-Q020", "sibling_text": "cage of main cooling sea water pump valve has crack no spare on board how to repair", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Cold repair of cracked cast-iron parts: liner, pump/valve cage, loose bearing seat", "cross_family": true } ] }, { "qid": "KOC-2026-08-2157-Q003", "text": "What are the Electronic record books?", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "KOC-2026-08-2157", "tray": "new", "candidates": [ { "answer_id": "A6-NSEC-005", "score": 0.6036094427108765, "sibling_score": 0.6036094427108765, "answer_score": null, "sibling_qid": "KOC-2023-03-0171-Q006", "sibling_text": "nox technicle file documentation ods record book eca c o seemp eedi records", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP — Part I, II & III", "cross_family": true }, { "answer_id": "AIRP-188-005", "score": 0.5898245573043823, "sibling_score": 0.5898245573043823, "answer_score": 0.38488727509975434, "sibling_qid": "KOL-2025-09-1092-Q002", "sibling_text": "ods record book what all entries", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "ODS Record Book and the IAPP equipment list — what and where?", "cross_family": true }, { "answer_id": "GRB-321-005", "score": 0.538580060005188, "sibling_score": 0.538580060005188, "answer_score": null, "sibling_qid": "NOI-2026-09-0020-Q003", "sibling_text": "garbage record book", "sibling_family": "MARPOL - Annex V (Garbage)", "via": "sibling", "answer_title": "Garbage Record Book — entries and recordable contents", "cross_family": true } ] }, { "qid": "KOC-2026-08-2158-Q001", "text": "Type of engine?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOC-2026-08-2158", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.8006400465965271, "sibling_score": 0.8006400465965271, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.7930276393890381, "sibling_score": 0.7930276393890381, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-001", "score": 0.45252704024314877, "sibling_score": null, "answer_score": 0.45252704024314877, "sibling_qid": "", "sibling_text": "1 turbocharger type main engine vs generator engine compressor is centrifugal in both cases only the turbine type differs large slow speed main engine axial flow turbine single stage constant pressure system", "sibling_family": "", "via": "answer_title", "answer_title": "1. Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "KOC-2026-08-2158-Q007", "text": "What is Schedule 40 & 80?", "family": "Workshop & Welding", "subtopic": "Pipe Pressure Test", "tid": "KOC-2026-08-2158", "tray": "new", "candidates": [ { "answer_id": "PIPE-MAT-004", "score": 0.4506402015686035, "sibling_score": 0.4506402015686035, "answer_score": null, "sibling_qid": "CHE-2025-08-0429-Q005", "sibling_text": "what is schedule pipe 40 and 80 po deciding", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Pipe schedule and its relation to thickness, ID, OD", "cross_family": false }, { "answer_id": "VIB-BAL-C-FINAL-1-001", "score": 0.3223035931587219, "sibling_score": 0.3223035931587219, "answer_score": null, "sibling_qid": "KOL-2025-07-4060-Q006", "sibling_text": "moment compensator 40", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "First- & Second-Order External Moments, Guide-Force Moments & Moment Compensators", "cross_family": true }, { "answer_id": "PMAX-PCOMP-BF041-003", "score": 0.31622183322906494, "sibling_score": 0.31622183322906494, "answer_score": null, "sibling_qid": "KOC-2024-10-1012-Q011", "sibling_text": "why 40 bar", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Pcomp and Pmax — the difference, the values you would expect, and what you do if either is low or high", "cross_family": true } ] }, { "qid": "KOC-2026-08-2158-Q008", "text": "Overboard valve material?", "family": "Auxiliary Equipment", "subtopic": "VALVES", "tid": "KOC-2026-08-2158", "tray": "new", "candidates": [ { "answer_id": "EXHV-P03-006", "score": 0.5735199451446533, "sibling_score": 0.5735199451446533, "answer_score": null, "sibling_qid": "MUM-2026-09-3892-Q010", "sibling_text": "exhaust valve seat material", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Exhaust valve materials — Stellite and Nimonic 80A: composition, use and why", "cross_family": false }, { "answer_id": "SEA-CHEST-006", "score": 0.5629310607910156, "sibling_score": 0.5629310607910156, "answer_score": null, "sibling_qid": "KOC-2023-03-1813-Q010", "sibling_text": "overboard valve low sea chest valve as 2nd how will u prolong it s life without crack", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "2/E actions: leak, crack, fouling, stuck valve, valve-life", "cross_family": true }, { "answer_id": "SGB-212-011", "score": 0.5439761877059937, "sibling_score": 0.5439761877059937, "answer_score": null, "sibling_qid": "KOL-2026-01-2037-Q002", "sibling_text": "material of boiler steam stop valve", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Material for a boiler / main steam stop valve", "cross_family": true } ] }, { "qid": "KOC-2026-08-2158-Q011", "text": "What is EICU? ", "family": "Automation & Controls", "subtopic": "Bridge Control of ME", "tid": "KOC-2026-08-2158", "tray": "new", "candidates": [ { "answer_id": "EICU-MAN-P01-001", "score": 0.5605848431587219, "sibling_score": 0.5605848431587219, "answer_score": 0.404388689994812, "sibling_qid": "KOC-2026-08-2158-Q013", "sibling_text": "function of eicu and ecu", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "EICU, ECU, CCU, ACU — the ME control units and what is controlled electronically", "cross_family": false }, { "answer_id": "EICU-MAN-P01-004", "score": 0.5357924699783325, "sibling_score": 0.5357924699783325, "answer_score": 0.29991468936204907, "sibling_qid": "MUM-2025-08-1159-Q003", "sibling_text": "ecu and eicu", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Control-unit failure — CCU / ECU / EICU: can you still run the engine?", "cross_family": true }, { "answer_id": "MEB-MEC-P03-002", "score": 0.4603056311607361, "sibling_score": 0.4603056311607361, "answer_score": 0.28374987542629243, "sibling_qid": "KOL-2026-01-4081-Q002", "sibling_text": "ccu function eicu function", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "ME camless control architecture — ECS, CCU, EICU, MPC", "cross_family": true } ] }, { "qid": "KOC-2026-08-2158-Q012", "text": "WHAT IS ECU?", "family": "Automation & Controls", "subtopic": "Bridge Control of ME", "tid": "KOC-2026-08-2158", "tray": "new", "candidates": [ { "answer_id": "EICU-MAN-P01-001", "score": 0.6413578987121582, "sibling_score": 0.6413578987121582, "answer_score": 0.48414884209632875, "sibling_qid": "KOC-2026-08-2158-Q013", "sibling_text": "function of eicu and ecu", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "EICU, ECU, CCU, ACU — the ME control units and what is controlled electronically", "cross_family": false }, { "answer_id": "RTFLEX-319-003", "score": 0.5647928714752197, "sibling_score": 0.5647928714752197, "answer_score": 0.394595855474472, "sibling_qid": "KOL-2019-04-3232-Q002", "sibling_text": "ecu hcu acu ccu function", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Electronic control modules: WECS, FCM-20, ICU, VCU — and the MAN-ME contrast", "cross_family": true }, { "answer_id": "EICU-MAN-P01-004", "score": 0.54166579246521, "sibling_score": 0.54166579246521, "answer_score": 0.40069617480039593, "sibling_qid": "KOL-2025-07-1993-Q003", "sibling_text": "ecu and eicu", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Control-unit failure — CCU / ECU / EICU: can you still run the engine?", "cross_family": true } ] }, { "qid": "KOC-2026-08-2159-Q001", "text": "Type of ship?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2026-08-2159", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.836766242980957, "sibling_score": 0.836766242980957, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8020406365394592, "sibling_score": 0.8020406365394592, "answer_score": 0.5474629700183868, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8004519939422607, "sibling_score": 0.8004519939422607, "answer_score": 0.5221094131469727, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "KOC-2026-08-2159-Q002", "text": "Attempt?", "family": "Status & Introduction", "subtopic": "", "tid": "KOC-2026-08-2159", "tray": "new", "candidates": [ { "answer_id": "IGAT-583-004", "score": 0.46787238121032715, "sibling_score": 0.46787238121032715, "answer_score": null, "sibling_qid": "KOC-2021-07-0013-Q006", "sibling_text": "ig fail what action int", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "As Second Engineer, what actions do you take if the inert gas plant of a crude oil tanker is repeatedly tripping on IG high temperature?", "cross_family": true }, { "answer_id": "PI-211-004", "score": 0.46018344163894653, "sibling_score": 0.46018344163894653, "answer_score": null, "sibling_qid": "KOL-2023-03-2641-Q002", "sibling_text": "dar test", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "PI and DAR — how they relate, their purpose, and acceptable values", "cross_family": true }, { "answer_id": "FCL-P03-001", "score": 0.44616225361824036, "sibling_score": 0.44616225361824036, "answer_score": null, "sibling_qid": "KOL-2020-11-3361-Q003", "sibling_text": "ae timing check", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "AE / auxiliary-engine fuel pump timing check and adjustment", "cross_family": true } ] }, { "qid": "KOC-2026-08-2159-Q003", "text": "Written status?", "family": "Status & Introduction", "subtopic": "WRITTEN STATUS", "tid": "KOC-2026-08-2159", "tray": "new", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.6058046817779541, "sibling_score": 0.6058046817779541, "answer_score": null, "sibling_qid": "MUM-2026-03-1294-Q001", "sibling_text": "status of writtens and orals", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": true }, { "answer_id": "EXHV-P01-001", "score": 0.5799925923347473, "sibling_score": 0.5799925923347473, "answer_score": null, "sibling_qid": "KOC-2026-08-2106-Q001", "sibling_text": "status of written oral company type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "FLAG-ST-001", "score": 0.5051316022872925, "sibling_score": 0.5051316022872925, "answer_score": null, "sibling_qid": "KOL-2025-08-1003-Q005", "sibling_text": "flag state", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Flag State — authority, role, duties and requirements", "cross_family": true } ] }, { "qid": "KOC-2026-08-2159-Q010", "text": "What will you do if the KVAR is fluctuating?", "family": "Electrical - Generator & Alternator", "subtopic": "Active / Reactive / Apparent Power", "tid": "KOC-2026-08-2159", "tray": "new", "candidates": [ { "answer_id": "AVR-EXC-H-003", "score": 0.5289617776870728, "sibling_score": 0.5289617776870728, "answer_score": null, "sibling_qid": "MUM-2026-03-2000-Q002", "sibling_text": "avr fluctuation i said 3 5", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Voltage regulation, dip, droop and transient response", "cross_family": false }, { "answer_id": "PF-B-001", "score": 0.4990403354167938, "sibling_score": 0.4990403354167938, "answer_score": null, "sibling_qid": "KOC-2025-11-1621-Q015", "sibling_text": "kva goes high what will happen", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Low power factor — causes and effects", "cross_family": false }, { "answer_id": "LS-IMB-A-001", "score": 0.46065616607666016, "sibling_score": 0.46065616607666016, "answer_score": null, "sibling_qid": "KOC-2026-05-2134-Q003", "sibling_text": "two ae running in parallel one of them showing high kvar reasons and corrective actions", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Two paralleled generators sharing unequal load — cause and correction", "cross_family": false } ] }, { "qid": "KOC-2026-08-2160-Q005", "text": "Why no relief valve in refer compressor?", "family": "Refrigeration & AC", "subtopic": "", "tid": "KOC-2026-08-2160", "tray": "new", "candidates": [ { "answer_id": "REEF-COMP-001", "score": 0.648500382900238, "sibling_score": 0.648500382900238, "answer_score": 0.48528867959976196, "sibling_qid": "KOC-2026-01-1990-Q005", "sibling_text": "ref compressor safeties", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Reefer/AC compressor safeties and cut-outs — safety valve, HP and LP cut-outs", "cross_family": false }, { "answer_id": "HYD-VLV-007", "score": 0.6056172847747803, "sibling_score": 0.6056172847747803, "answer_score": null, "sibling_qid": "KOL-2025-07-3840-Q010", "sibling_text": "why not relief valve not given at s g pump", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "The Steering-Gear Pressure-Relief Valve — Location, Activation, and the Pump-Relief Question", "cross_family": true }, { "answer_id": "REEF-COMP-002", "score": 0.5969186425209045, "sibling_score": 0.5969186425209045, "answer_score": null, "sibling_qid": "KOC-2025-05-1531-Q005", "sibling_text": "ref compressor lo trip working and explanation", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Lube-oil low-pressure / differential-pressure trip — how it works, tests and sets", "cross_family": false } ] }, { "qid": "KOC-2026-08-2160-Q006", "text": "How winch works ? Internal ques", "family": "Auxiliary Equipment", "subtopic": "Windlass / Winch", "tid": "KOC-2026-08-2160", "tray": "new", "candidates": [ { "answer_id": "WBRT-005", "score": 0.5627809166908264, "sibling_score": 0.5627809166908264, "answer_score": null, "sibling_qid": "CHE-2026-03-0497-Q008", "sibling_text": "how break lining fitted to the winch", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Brake maintenance: lining, drum, pad fitting and adjustment", "cross_family": false }, { "answer_id": "WIND-WNCH-001", "score": 0.5473011136054993, "sibling_score": 0.5473011136054993, "answer_score": null, "sibling_qid": "KOL-2024-12-0905-Q006", "sibling_text": "windlass winch arrangement 6", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Types, arrangement, main parts and mooring-station equipment", "cross_family": false }, { "answer_id": "WIND-WNCH-004", "score": 0.5430780649185181, "sibling_score": 0.5430780649185181, "answer_score": null, "sibling_qid": "MUM-2025-12-1818-Q001", "sibling_text": "auto tensioning of winch working principle", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Auto / constant-tension winch and troubleshooting", "cross_family": false } ] }, { "qid": "KOC-2026-08-2160-Q007", "text": "Types of valves? Internal ques", "family": "Auxiliary Equipment", "subtopic": "VALVES", "tid": "KOC-2026-08-2160", "tray": "review", "candidates": [ { "answer_id": "GV-330-001", "score": 0.7087891101837158, "sibling_score": 0.7087891101837158, "answer_score": null, "sibling_qid": "CHE-2026-09-3912-Q006", "sibling_text": "what are the different types of globe valves which type is used where and reasons", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Draw and explain the gate valve — construction, main parts, operation & onboard use", "cross_family": false }, { "answer_id": "CBV-004", "score": 0.6447372436523438, "sibling_score": 0.6447372436523438, "answer_score": null, "sibling_qid": "MUM-2025-06-1136-Q009", "sibling_text": "counter balance valve two types internal and external what you will choose and why", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "What are the internal and external pilot types of counter-balance valve, and which would you select for steering/hydraulic service?", "cross_family": true }, { "answer_id": "AUC-P03-04", "score": 0.6433496475219727, "sibling_score": 0.6433496475219727, "answer_score": null, "sibling_qid": "KOC-2025-12-1078-Q009", "sibling_text": "what is valve historisis pneumatic valve", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Control-valve positioner — function and calibration of a pneumatic actuator/positioner", "cross_family": true } ] }, { "qid": "KOC-2026-08-2160-Q009", "text": "Vent valve type? Internal ques", "family": "Auxiliary Equipment", "subtopic": "VALVES", "tid": "KOC-2026-08-2160", "tray": "review", "candidates": [ { "answer_id": "VENT-HD-007", "score": 0.6718645095825195, "sibling_score": 0.6718645095825195, "answer_score": 0.4717477262020111, "sibling_qid": "MUM-2026-06-3607-Q006", "sibling_text": "type of vent heads", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Types of tank vents; weathertight vs watertight", "cross_family": false }, { "answer_id": "HYD-602-002", "score": 0.6531078815460205, "sibling_score": 0.6531078815460205, "answer_score": null, "sibling_qid": "KOC-2026-08-2160-Q008", "sibling_text": "at what pressure boiler vent valve operated internal ques", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Why is the hydrostatic test carried out, when is it done, and what does it prove?", "cross_family": true }, { "answer_id": "VENT-HD-001", "score": 0.6446754336357117, "sibling_score": 0.6446754336357117, "answer_score": 0.46179003119468687, "sibling_qid": "KOC-2025-09-0657-Q007", "sibling_text": "air vent valve", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "High-velocity / tank air vent valves and their purpose", "cross_family": false } ] }, { "qid": "KOC-2026-08-2161-Q005", "text": "Procedure for taking⁠ stern tube clearance?", "family": "Drydock & Underwater Surveys", "subtopic": "Stern Tube / Tail Shaft", "tid": "KOC-2026-08-2161", "tray": "review", "candidates": [ { "answer_id": "STERN-TUBE-TAIL-SHAFT-001", "score": 0.6679473519325256, "sibling_score": 0.6679473519325256, "answer_score": null, "sibling_qid": "KOL-2025-11-3877-Q003", "sibling_text": "stern tube survey", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "STT-BRG-008", "score": 0.6599505543708801, "sibling_score": 0.6599505543708801, "answer_score": null, "sibling_qid": "KOC-2026-04-1126-Q012", "sibling_text": "stern tube clearances internal no questions", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "7. Stern tube bearings — number, size, fixing, clearance, weardown and high-temperature", "cross_family": true }, { "answer_id": "STS-P02-001", "score": 0.6539700627326965, "sibling_score": 0.6539700627326965, "answer_score": 0.4175167828798294, "sibling_qid": "KOC-2023-12-1822-Q008", "sibling_text": "how to take stern tube bearing clearance he needs the procedure clearance value", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "STS-P02-01 - Stern tube bearing clearance and wear-down measurement", "cross_family": false } ] }, { "qid": "KOC-2026-08-2161-Q007", "text": "⁠Running in procedure?", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "KOC-2026-08-2161", "tray": "new", "candidates": [ { "answer_id": "PRING-B-005", "score": 0.5908091068267822, "sibling_score": 0.5908091068267822, "answer_score": null, "sibling_qid": "MUM-2026-03-1004-Q007", "sibling_text": "running in", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Running-in & latest developments", "cross_family": false }, { "answer_id": "SYNCRO-A-001", "score": 0.5580501556396484, "sibling_score": 0.5580501556396484, "answer_score": null, "sibling_qid": "KOL-2019-11-2347-Q003", "sibling_text": "auto synchronous procedure", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Synchroscope — construction, working, purpose & circuit/principle", "cross_family": true }, { "answer_id": "LB-D-001", "score": 0.548210859298706, "sibling_score": 0.548210859298706, "answer_score": null, "sibling_qid": "KOC-2022-12-0120-Q009", "sibling_text": "procedure to launch", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Davit-launched lifeboat — lowering & launching (drill and actual emergency)", "cross_family": true } ] }, { "qid": "KOC-2026-08-2162-Q003", "text": "Why no relief valve in reefer compressor?", "family": "Air Compressor", "subtopic": "Unloader", "tid": "KOC-2026-08-2162", "tray": "new", "candidates": [ { "answer_id": "ACRV-004", "score": 0.6246027946472168, "sibling_score": 0.6246027946472168, "answer_score": null, "sibling_qid": "KOC-2025-03-1031-Q018", "sibling_text": "compressor relief vv setting pressure and safety cutout", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Final-stage relief-valve setting/adjustment and safety cut-out pressure", "cross_family": false }, { "answer_id": "MAC-353-004", "score": 0.5983673930168152, "sibling_score": 0.5983673930168152, "answer_score": null, "sibling_qid": "MUM-2026-09-3997-Q010", "sibling_text": "refer compressor continuously running reason", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Main air compressor running continuously or for too long — causes and checks", "cross_family": false }, { "answer_id": "ACRV-001", "score": 0.597734272480011, "sibling_score": 0.597734272480011, "answer_score": null, "sibling_qid": "CHE-2026-03-0486-Q002", "sibling_text": "air compressor relief valve leaking reasons", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "First-stage relief valve lifting or leaking — reasons and checks", "cross_family": false } ] }, { "qid": "KOC-2026-08-2162-Q010", "text": "In case of A/E Exhaust valve found broken into the cylinder, what all inspections carried out before installing new cylinder head?", "family": "2-Stroke - Exhaust, Valve & Starting Air", "subtopic": "Exhaust Valve", "tid": "KOC-2026-08-2162", "tray": "review", "candidates": [ { "answer_id": "EXV-P02-001", "score": 0.7539379000663757, "sibling_score": 0.7539379000663757, "answer_score": 0.5488080471754074, "sibling_qid": "KOL-2024-06-3695-Q004", "sibling_text": "exhaust valve overhauled and ready what checks you will carry out", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve overhaul & dismantling — procedure and precautions", "cross_family": false }, { "answer_id": "EXHV-297-004", "score": 0.7508649230003357, "sibling_score": 0.7508649230003357, "answer_score": null, "sibling_qid": "MUM-2024-02-2223-Q002", "sibling_text": "exh v test prior to fitting in main cylinder block what all other checks", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Checks, tests & overhaul points — before and after fitting", "cross_family": false }, { "answer_id": "EXV-P02-003", "score": 0.7430112957954407, "sibling_score": 0.7430112957954407, "answer_score": 0.5280690133571625, "sibling_qid": "KOC-2022-08-1790-Q001", "sibling_text": "checks on exhaust valve before mounting explained steps as in manual", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Checks and tests after overhaul — before refitting", "cross_family": false } ] }, { "qid": "KOC-2026-08-2163-Q001", "text": "Type of Engine?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOC-2026-08-2163", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.8006401062011719, "sibling_score": 0.8006401062011719, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.7930276393890381, "sibling_score": 0.7930276393890381, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-001", "score": 0.45252704024314877, "sibling_score": null, "answer_score": 0.45252704024314877, "sibling_qid": "", "sibling_text": "1 turbocharger type main engine vs generator engine compressor is centrifugal in both cases only the turbine type differs large slow speed main engine axial flow turbine single stage constant pressure system", "sibling_family": "", "via": "answer_title", "answer_title": "1. Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "KOC-2026-08-2163-Q002", "text": "Type of Vessel?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2026-08-2163", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8509357571601868, "sibling_score": 0.8509357571601868, "answer_score": null, "sibling_qid": "MUM-2026-06-3384-Q001", "sibling_text": "type of vessel", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.7772265076637268, "sibling_score": 0.7772265076637268, "answer_score": null, "sibling_qid": "CHE-2026-02-0481-Q001", "sibling_text": "type of vessels sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7704218029975891, "sibling_score": 0.7704218029975891, "answer_score": 0.5233222067356109, "sibling_qid": "CHE-2026-02-0109-Q001", "sibling_text": "type of ship explain what type is your vessel explain their type and difference", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "KOC-2026-08-2163-Q003", "text": "No. Of Attempt?", "family": "Status & Introduction", "subtopic": "", "tid": "KOC-2026-08-2163", "tray": "new", "candidates": [ { "answer_id": "CHAIN-TENS-A-003", "score": 0.4748630225658417, "sibling_score": 0.4748630225658417, "answer_score": null, "sibling_qid": "MUM-2026-02-2546-Q006", "sibling_text": "6 repeat", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "Chain Tightening Procedure — MC / MC-C / ME", "cross_family": true }, { "answer_id": "RISK-RA-D-002", "score": 0.44567447900772095, "sibling_score": 0.44567447900772095, "answer_score": null, "sibling_qid": "MUM-2024-02-0162-Q007", "sibling_text": "u tried level best risk is not able to control what will u do", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "", "cross_family": true }, { "answer_id": "ANCH-CHN-A-003", "score": 0.44192594289779663, "sibling_score": 0.44192594289779663, "answer_score": null, "sibling_qid": "MUM-2026-01-0726-Q004", "sibling_text": "en number", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Equipment Number & how cable length is decided", "cross_family": true } ] }, { "qid": "KOC-2026-08-2163-Q004", "text": "MOP on Main Engine Explain ?", "family": "2-Stroke - Electronic Control", "subtopic": "", "tid": "KOC-2026-08-2163", "tray": "new", "candidates": [ { "answer_id": "VIT-MECH-C-003", "score": 0.5353068113327026, "sibling_score": 0.5353068113327026, "answer_score": null, "sibling_qid": "KOC-2026-05-0046-Q004", "sibling_text": "vit explain wrt me engine", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "ME & electronic engines — timing without a VIT mechanism", "cross_family": true }, { "answer_id": "CPP-POL-01", "score": 0.5088440775871277, "sibling_score": 0.5088440775871277, "answer_score": null, "sibling_qid": "MUM-2026-09-3936-Q008", "sibling_text": "performance of main engine how taken and significance of mep", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Why and how is a main-engine performance test prepared, taken and assessed?", "cross_family": true }, { "answer_id": "MCC-MEB-P02-003", "score": 0.4984856843948364, "sibling_score": 0.4984856843948364, "answer_score": null, "sibling_qid": "KOL-2026-05-4192-Q006", "sibling_text": "me engine describe", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Conventional MC / MC-C versus electronic ME — the practical operating differences", "cross_family": true } ] }, { "qid": "KOC-2026-08-2163-Q005", "text": "Types of MOP?", "family": "2-Stroke - Electronic Control", "subtopic": "", "tid": "KOC-2026-08-2163", "tray": "new", "candidates": [ { "answer_id": "FOAM-SYS-P05-005", "score": 0.46688079833984375, "sibling_score": 0.46688079833984375, "answer_score": null, "sibling_qid": "KOL-2017-08-0107-Q004", "sibling_text": "3 types of foam hef lef mef", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "5. Foam types carried onboard and how the correct foam is selected", "cross_family": true }, { "answer_id": "CPFE-583-001", "score": 0.44584134221076965, "sibling_score": 0.44584134221076965, "answer_score": null, "sibling_qid": "MUM-2026-06-3391-Q008", "sibling_text": "framo pump type", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "The Framo system — what it is, how it works, and the driving mechanism", "cross_family": true }, { "answer_id": "PCD-P01-02", "score": 0.4416305124759674, "sibling_score": 0.4416305124759674, "answer_score": 0.33473528623580934, "sibling_qid": "MUM-2026-06-3649-Q009", "sibling_text": "types of pump", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Types and classification of pumps on board — and which pump for which duty", "cross_family": true } ] }, { "qid": "KOC-2026-08-2163-Q006", "text": "What is MPC and Explain its Types?", "family": "2-Stroke - Electronic Control", "subtopic": "", "tid": "KOC-2026-08-2163", "tray": "new", "candidates": [ { "answer_id": "MEB-MEC-P03-002", "score": 0.5481999516487122, "sibling_score": 0.5481999516487122, "answer_score": 0.3444239556789398, "sibling_qid": "KOL-2025-03-1797-Q002", "sibling_text": "what is mpc", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "ME camless control architecture — ECS, CCU, EICU, MPC", "cross_family": true }, { "answer_id": "CPP-ATC-06", "score": 0.5253152251243591, "sibling_score": 0.5253152251243591, "answer_score": 0.4344365656375885, "sibling_qid": "KOC-2025-11-1077-Q001", "sibling_text": "mpc and mpc10 difference", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "MPC and MPC-10 controller hardware — what they are, how they differ", "cross_family": true }, { "answer_id": "CTRL-TL-002", "score": 0.48816096782684326, "sibling_score": 0.48816096782684326, "answer_score": null, "sibling_qid": "MUM-2026-01-1251-Q004", "sibling_text": "what is mpc and what other types of controllers are there in me engines", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Function of a controller, and types used on board", "cross_family": true } ] }, { "qid": "KOC-2026-08-2163-Q015", "text": "Auxiliary Engine Gear drive diagram draw and explain? ", "family": "2-Stroke - Reversing & Maneuvering", "subtopic": "EICU / Manoeuvring System", "tid": "KOC-2026-08-2163", "tray": "new", "candidates": [ { "answer_id": "AE-GOV-001", "score": 0.6145724058151245, "sibling_score": 0.6145724058151245, "answer_score": 0.5194518864154816, "sibling_qid": "CHE-2026-04-0505-Q001", "sibling_text": "aux engine governor working diagram explain", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Auxiliary engine governor — working, explained on the diagram", "cross_family": true }, { "answer_id": "EICU-MAN-P02-001", "score": 0.6113535761833191, "sibling_score": 0.6113535761833191, "answer_score": null, "sibling_qid": "KOC-2026-04-1125-Q005", "sibling_text": "draw any one manouvering diagram i have drawn mc engine", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "MC / MC-C conventional manoeuvring system — handle, microswitches, block valves, reversing servomotor", "cross_family": false }, { "answer_id": "TG-MOTOR-005", "score": 0.5941863059997559, "sibling_score": 0.5941863059997559, "answer_score": 0.4759472608566284, "sibling_qid": "KOC-2025-01-1479-Q001", "sibling_text": "turning gear circuit diagram", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw the turning gear circuit diagram and explain the starter.", "cross_family": true } ] }, { "qid": "KOC-2026-08-2163-Q021", "text": "Types of Valves? 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Reason?", "family": "2-Stroke - ME-C / Electronic Engine", "subtopic": "", "tid": "KOC-2026-09-2165", "tray": "new", "candidates": [ { "answer_id": "ALT-MAINT-C-002", "score": 0.5776431560516357, "sibling_score": 0.5776431560516357, "answer_score": null, "sibling_qid": "MUM-2023-11-1410-Q005", "sibling_text": "alternator winding one phase high alarm reason", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "2. How do you check winding insulation, IR, hotspots and winding condition?", "cross_family": true }, { "answer_id": "EXH-T-HI-002", "score": 0.5774415731430054, "sibling_score": 0.5774415731430054, "answer_score": null, "sibling_qid": "NOI-2026-09-0026-Q005", "sibling_text": "exhaust gas high temp deviation alarm is coming from a unit of main engine how is this working", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "One unit exhaust temperature high — causes, checks and actions", "cross_family": true }, { "answer_id": "EF-DET-P01-003", "score": 0.5742536783218384, "sibling_score": 0.5742536783218384, "answer_score": null, "sibling_qid": "MUM-2026-02-1973-Q006", "sibling_text": "motor ir checked no fault in motor still low insulation alarm what issue", "sibling_family": "", "via": "sibling", "answer_title": "Tracing and locating an earth fault or low-insulation fault on a 440V / 220V / deck circuit", "cross_family": false } ] }, { "qid": "KOC-2026-09-2165-Q009", "text": "ME Air cooler tubes renewal procedure?", "family": "Heat Exchangers & Coolers", "subtopic": "Air Cooler / JCW Cooler", "tid": "KOC-2026-09-2165", "tray": "review", "candidates": [ { "answer_id": "ACJCW-003", "score": 0.6536632180213928, "sibling_score": 0.6536632180213928, "answer_score": 0.4918613642454147, "sibling_qid": "MUM-2022-10-2152-Q004", "sibling_text": "ae air cooler overhaul procedure and cleaning", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Cleaning and overhauling an air cooler - air side and water side", "cross_family": false }, { "answer_id": "STHX-008", "score": 0.6480921506881714, "sibling_score": 0.6480921506881714, "answer_score": null, "sibling_qid": "KOL-2018-08-3176-Q005", "sibling_text": "retubing full procedure asked if condenser tube has leaked how to replace it", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "STHX-08 — Condensers (main / auxiliary / dump): tube attachment, testing, renewal and safety", "cross_family": false }, { "answer_id": "STHX-005", "score": 0.6334375739097595, "sibling_score": 0.6334375739097595, "answer_score": 0.4868098646402359, "sibling_qid": "KOL-2022-09-3571-Q004", "sibling_text": "how can a tube failure occur tube replacement procedure of shell tube cooler", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "STHX-05 — Damaged-tube removal, tube renewal, retubing tools and procedure", "cross_family": false } ] }, { "qid": "KOC-2026-09-2165-Q010", "text": "Casing wear ring how its fitted in Pump?", "family": "Pumps - Centrifugal & PD", "subtopic": "Wear Ring", "tid": "KOC-2026-09-2165", "tray": "new", "candidates": [ { "answer_id": "WRG-001", "score": 0.6380336880683899, "sibling_score": 0.6380336880683899, "answer_score": 0.4742494612932205, "sibling_qid": "MUM-2022-10-2151-Q005", "sibling_text": "casing ring stuck in sw pump how to take out", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "What the wear ring is for, where it sits, how many, which part rotates — and why a sleeve is used", "cross_family": false }, { "answer_id": "WRG-002", "score": 0.6311827301979065, "sibling_score": 0.6311827301979065, "answer_score": 0.48093806505203246, "sibling_qid": "CHE-2026-03-0489-Q006", "sibling_text": "centrifugal pump wear ring clearance is more no spare on board how to use the old wear ring", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Wear-ring and impeller-to-casing clearance — how to know it is good, and what happens when it opens up or closes in", "cross_family": false }, { "answer_id": "PUMP-CAS-004", "score": 0.5765874981880188, "sibling_score": 0.5765874981880188, "answer_score": null, "sibling_qid": "CHE-2026-04-0501-Q007", "sibling_text": "centrifugal pump during overhaul while removing casing stud came out along with nut how you will fit back the stud to casing", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "04. Overhaul: casing stud comes out with the nut — refitting it correctly", "cross_family": false } ] }, { "qid": "KOC-2026-09-2166-Q005", "text": "Safety valve checks?( needed more than 7 points)", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2026-09-2166", "tray": "new", "candidates": [ { "answer_id": "BLR-SURV-P01-001", "score": 0.5898354053497314, "sibling_score": 0.5898354053497314, "answer_score": null, "sibling_qid": "MUM-2026-03-2589-Q003", "sibling_text": "checks on safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-002", "score": 0.5626797080039978, "sibling_score": 0.5626797080039978, "answer_score": null, "sibling_qid": "MUM-2022-07-2694-Q001", "sibling_text": "accumulation pr test if safety valve lifts then y u want that it should not go beyond 10 like for 10 bar if it lifts at 3 of 10 bar then y it should go beyond that upto 10", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Acceptance limits and durations — the accumulation limit, the maximum test periods, and the action if the limit is exceeded", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-003", "score": 0.5154371857643127, "sibling_score": 0.5154371857643127, "answer_score": 0.4121931165456772, "sibling_qid": "MUM-2023-03-1044-Q007", "sibling_text": "accumulation of pressure test y is it carried out a how do u know if ur safety valve is of proper size", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "The accumulation test and the safety valve — required lift, how lift and capacity are verified, and why accumulation must stay inside the limit", "cross_family": false } ] }, { "qid": "KOC-2026-09-2166-Q008", "text": "Difference between servo line of ME AND RT FLEX?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "RT-flex", "tid": "KOC-2026-09-2166", "tray": "new", "candidates": [ { "answer_id": "MEB-MEC-P03-005", "score": 0.5530806183815002, "sibling_score": 0.5530806183815002, "answer_score": 0.3383635342121124, "sibling_qid": "KOC-2024-12-1019-Q001", "sibling_text": "difference btw me and rt flex", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "MAN ME vs Sulzer / Wärtsilä RT-flex", "cross_family": false }, { "answer_id": "RTFLEX-319-001", "score": 0.5334448218345642, "sibling_score": 0.5334448218345642, "answer_score": 0.3960115075111389, "sibling_qid": "MUM-2022-07-0017-Q019", "sibling_text": "rta v s rt flex", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "RT-flex versus RTA, MAN ME and conventional camshaft engines", "cross_family": false }, { "answer_id": "RTFLEX-319-005", "score": 0.5086382627487183, "sibling_score": 0.5086382627487183, "answer_score": null, "sibling_qid": "KOL-2018-08-1861-Q004", "sibling_text": "me and rtflex working and basics of working servo oil pressure", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Manoeuvring, servo oil / exhaust timing, and exhaust-valve operation and faults", "cross_family": false } ] }, { "qid": "KOC-2026-09-2166-Q009", "text": "Difference between fuel pumps of ME and RT FLEX?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "RT-flex", "tid": "KOC-2026-09-2166", "tray": "new", "candidates": [ { "answer_id": "MEB-MEC-P03-005", "score": 0.6189448237419128, "sibling_score": 0.6189448237419128, "answer_score": null, "sibling_qid": "MUM-2022-07-1014-Q004", "sibling_text": "types of me engine and rt flex", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "MAN ME vs Sulzer / Wärtsilä RT-flex", "cross_family": false }, { "answer_id": "RTFLEX-319-004", "score": 0.6100473403930664, "sibling_score": 0.6100473403930664, "answer_score": null, "sibling_qid": "KOL-2018-06-1386-Q001", "sibling_text": "rt flex fuel injection system", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Common-rail fuel injection: control, timing, volume and FQS setting", "cross_family": false }, { "answer_id": "AEFP-471-006", "score": 0.6066822409629822, "sibling_score": 0.6066822409629822, "answer_score": 0.45484177470207215, "sibling_qid": "MUM-2026-07-3773-Q008", "sibling_text": "difference between me and ae fuel pumps", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "What is the difference between main-engine and auxiliary-engine fuel pumps?", "cross_family": true } ] }, { "qid": "KOC-2026-09-2167-Q004", "text": "contents of SOPEP plan?", "family": "MARPOL - Annex I (Oil)", "subtopic": "SOPEP", "tid": "KOC-2026-09-2167", "tray": "new", "candidates": [ { "answer_id": "SOPEP-002", "score": 0.5832763314247131, "sibling_score": 0.5832763314247131, "answer_score": 0.3459047108888626, "sibling_qid": "KOC-2024-04-0335-Q001", "sibling_text": "sopep contents", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "SOPEP — Mandatory Contents, Appendices, Locker and Equipment", "cross_family": false }, { "answer_id": "SOPEP-001", "score": 0.5162347555160522, "sibling_score": 0.5162347555160522, "answer_score": null, "sibling_qid": "KOC-2023-10-0236-Q007", "sibling_text": "prevention plan associated with annexe 1 in marpol i said sopep he accepted and then asked equivalent plan for annexe 2 nls", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "SOPEP — Definition, Applicability and the Governing Regulation", "cross_family": false }, { "answer_id": "FCP-001", "score": 0.4748709201812744, "sibling_score": 0.4748709201812744, "answer_score": null, "sibling_qid": "KOC-2023-10-0237-Q002", "sibling_text": "fire content plan contents", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "What is the fire control plan, and what does it show — including bulkhead types and escape routes?", "cross_family": true } ] }, { "qid": "KOC-2026-09-2167-Q006", "text": "ORB Code d?", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "KOC-2026-09-2167", "tray": "new", "candidates": [ { "answer_id": "OWS-ORB-006", "score": 0.6138293743133545, "sibling_score": 0.6138293743133545, "answer_score": null, "sibling_qid": "CHE-2026-05-0634-Q009", "sibling_text": "orb all codes", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "6. Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-002", "score": 0.5448915362358093, "sibling_score": 0.5448915362358093, "answer_score": null, "sibling_qid": "CHE-2026-05-0543-Q003", "sibling_text": "orb in details", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "The Oil Record Book Part I — purpose, the letter codes, and how entries are made", "cross_family": false }, { "answer_id": "BWM-D1D2-P04-002", "score": 0.4993935823440552, "sibling_score": 0.4993935823440552, "answer_score": 0.26553773134946823, "sibling_qid": "KOC-2022-01-0048-Q013", "sibling_text": "bwms code explain d1 d2 d4", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "D-2 standard and the BWMS Code (ex-G8) — type approval of treatment systems", "cross_family": true } ] }, { "qid": "KOC-2026-09-2169-Q003", "text": "What is K value and how it increases?", "family": "Turbocharger", "subtopic": "", "tid": "KOC-2026-09-2169", "tray": "new", "candidates": [ { "answer_id": "TC-KLM-330-002", "score": 0.48410922288894653, "sibling_score": 0.48410922288894653, "answer_score": 0.37492405772209164, "sibling_qid": "MUM-2025-05-0273-Q016", "sibling_text": "what is k value in t c", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "What is the K value, why is it important, and what happens if it is wrong?", "cross_family": false }, { "answer_id": "TC-KLM-330-003", "score": 0.4472682476043701, "sibling_score": 0.4472682476043701, "answer_score": 0.3594808503985405, "sibling_qid": "MUM-2024-11-2256-Q003", "sibling_text": "procedure and reasons for finding k value of t c", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Finding the K value during overhaul — procedure, and the reasons for taking it", "cross_family": false }, { "answer_id": "TC-KLM-330-005", "score": 0.41081148386001587, "sibling_score": 0.41081148386001587, "answer_score": 0.3714112728834152, "sibling_qid": "MUM-2026-05-3217-Q009", "sibling_text": "how to adjust k value in turbocharger", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "How do you adjust the K value?", "cross_family": false } ] }, { "qid": "KOC-2026-09-2169-Q004", "text": "HPS system diagram?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Injection System", "tid": "KOC-2026-09-2169", "tray": "new", "candidates": [ { "answer_id": "DCP-FIXED-A-001", "score": 0.5544630289077759, "sibling_score": 0.5544630289077759, "answer_score": null, "sibling_qid": "KOL-2019-10-0335-Q001", "sibling_text": "fixed dcp system with diagram", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Draw and explain the fixed DCP/dry-powder deck fire-fighting system", "cross_family": true }, { "answer_id": "T038-P01-002", "score": 0.5052965879440308, "sibling_score": 0.5052965879440308, "answer_score": null, "sibling_qid": "MUM-2022-07-1341-Q002", "sibling_text": "hv system", "sibling_family": "", "via": "sibling", "answer_title": "HV system onboard — layout, components, applications, earthing & protection", "cross_family": false }, { "answer_id": "ISB-435-003", "score": 0.5044167041778564, "sibling_score": 0.5044167041778564, "answer_score": null, "sibling_qid": "KOC-2025-11-1970-Q007", "sibling_text": "diagram how", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Intermediate shaft bearing — lubrication, cooling, cross-section and parts", "cross_family": true } ] }, { "qid": "KOC-2026-09-2169-Q005", "text": "What is priming and forming in boiler?", "family": "Boilers - Operations & Firing", "subtopic": "Boiler Operations", "tid": "KOC-2026-09-2169", "tray": "new", "candidates": [ { "answer_id": "BLR-OPS-006", "score": 0.5518540740013123, "sibling_score": 0.5518540740013123, "answer_score": 0.40445181727409363, "sibling_qid": "MUM-2023-09-1061-Q002", "sibling_text": "warming up of boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Explain the warming up of a boiler.", "cross_family": false }, { "answer_id": "BLR-OPS-001", "score": 0.536113440990448, "sibling_score": 0.536113440990448, "answer_score": null, "sibling_qid": "NOI-2026-09-0013-Q010", "sibling_text": "cold firing of boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Explain the procedure for raising steam in an auxiliary boiler from cold.", "cross_family": false }, { "answer_id": "BLR-OPS-004", "score": 0.533701479434967, "sibling_score": 0.533701479434967, "answer_score": 0.40535829663276673, "sibling_qid": "KOL-2019-03-3220-Q004", "sibling_text": "boiler starting procedure from laid up condition", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Explain the procedure for starting a boiler from a laid-up condition.", "cross_family": false } ] }, { "qid": "KOC-2026-09-2169-Q006", "text": "What is BPME?", "family": "", "subtopic": "", "tid": "KOC-2026-09-2169", "tray": "new", "candidates": [ { "answer_id": "MIP-264-004", "score": 0.5603163242340088, "sibling_score": 0.5603163242340088, "answer_score": 0.3468060731887817, "sibling_qid": "KOC-2024-09-1008-Q005", "sibling_text": "bmep", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "BMEP value and how it is interpreted", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.4107588529586792, "sibling_score": 0.4107588529586792, "answer_score": null, "sibling_qid": "MUM-2026-03-1286-Q002", "sibling_text": "what is bhp", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "BWMS-A-001", "score": 0.4000638723373413, "sibling_score": 0.4000638723373413, "answer_score": null, "sibling_qid": "KOC-2023-08-0211-Q007", "sibling_text": "expalin bwms and", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "The BWM Convention: what it is and why it is required", "cross_family": false } ] }, { "qid": "KOC-2026-09-2170-Q002", "text": "Fumes from AE mist box reason?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE CRANKCASE", "tid": "KOC-2026-09-2170", "tray": "new", "candidates": [ { "answer_id": "AE-HOT-BLOW-001", "score": 0.6191697716712952, "sibling_score": 0.6191697716712952, "answer_score": 0.3654184117913246, "sibling_qid": "MUM-2022-12-1036-Q005", "sibling_text": "ae giving dark smoke reasons", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE / DG giving black or dark smoke — causes and corrective action", "cross_family": false }, { "answer_id": "AE-HOT-BLOW-002", "score": 0.575677752494812, "sibling_score": 0.575677752494812, "answer_score": 0.37536625266075135, "sibling_qid": "MUM-2025-05-2295-Q006", "sibling_text": "on deck you smell exhaust gas from the vent heads what will be your action and reasons for smell told exhaust from ae crankcase due to blowpast leading to mist box", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "How you know blow-past is occurring in an auxiliary engine — indications and effects", "cross_family": false }, { "answer_id": "SMK-FUNL-BF01-001", "score": 0.4998756945133209, "sibling_score": 0.4998756945133209, "answer_score": null, "sibling_qid": "MUM-2024-01-2219-Q004", "sibling_text": "smoke from funnel very subjective questions here says answer as a 2nd engineer not class 4 got fn 3", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "The bridge reports smoke from the funnel — what is your action as 2/E?", "cross_family": true } ] }, { "qid": "KOC-2026-09-2171-Q001", "text": "Bulk carrier Ship, MC-c and ME-C engine", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2026-09-2171", "tray": "new", "candidates": [ { "answer_id": "ALT-MTN-B-001", "score": 0.6233624815940857, "sibling_score": 0.6233624815940857, "answer_score": null, "sibling_qid": "MUM-2026-02-1281-Q001", "sibling_text": "main engine specification mc c", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Routine onboard alternator maintenance checks", "cross_family": false }, { "answer_id": "MCC-MEB-P01-001", "score": 0.5989660620689392, "sibling_score": 0.5989660620689392, "answer_score": null, "sibling_qid": "KOC-2022-07-2031-Q002", "sibling_text": "type of ship engine model 6s70mc c c means compact explain", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "MC-C (\"Compact\") engine — design and the main constructional differences from MC", "cross_family": true }, { "answer_id": "EGTP-P02-005", "score": 0.5752665400505066, "sibling_score": 0.5752665400505066, "answer_score": 0.4424461305141449, "sibling_qid": "MUM-2026-06-3500-Q002", "sibling_text": "mc vs me engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "MC / MC-C / ME-C and Electronically Controlled Engines", "cross_family": false } ] }, { "qid": "KOC-2026-09-2172-Q005", "text": "Hyper mist nozzle distribution criteria?", "family": "SOLAS - Fire Safety", "subtopic": "Sprinkler / Water Mist / Hi-Fog", "tid": "KOC-2026-09-2172", "tray": "new", "candidates": [ { "answer_id": "FIRE-P01-03", "score": 0.6447686553001404, "sibling_score": 0.6447686553001404, "answer_score": 0.38015465438365936, "sibling_qid": "KOC-2024-01-0266-Q001", "sibling_text": "hyper mist systems and nozzle diagram with explanation", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist — how the mist is formed and how it extinguishes fire", "cross_family": false }, { "answer_id": "FIRE-P02-04", "score": 0.6002880930900574, "sibling_score": 0.6002880930900574, "answer_score": 0.46625322103500366, "sibling_qid": "KOL-2017-10-0118-Q003", "sibling_text": "hypermist regulation what is basic difference between sprinkler and hyper mist", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist vs sprinkler and CO₂ — comparison and coexistence", "cross_family": false }, { "answer_id": "FIRE-P01-01", "score": 0.6000385284423828, "sibling_score": 0.6000385284423828, "answer_score": null, "sibling_qid": "KOC-2025-06-0608-Q002", "sibling_text": "draw hypermist system diagram pump pressure 40 100 water mist size 50micron", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist / water-mist system — draw and explain the machinery-space arrangement and normal working", "cross_family": false } ] }, { "qid": "KOC-2026-09-2173-Q004", "text": "Swirl and squash 4s engine?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Camshaft, Timing Gear / Valve Timing", "tid": "KOC-2026-09-2173", "tray": "new", "candidates": [ { "answer_id": "FSE-P02-003", "score": 0.47667938470840454, "sibling_score": 0.47667938470840454, "answer_score": null, "sibling_qid": "KOC-2026-09-2171-Q006", "sibling_text": "swirl and squish", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Slack / partly-filled tanks and sloshing", "cross_family": true }, { "answer_id": "ETP-344-P03-007", "score": 0.46160030364990234, "sibling_score": 0.46160030364990234, "answer_score": null, "sibling_qid": "CHE-2026-04-0263-Q002", "sibling_text": "what is swirl and squish", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Combustion in the cylinder — atomisation, penetration, turbulence, swirl, squish", "cross_family": true }, { "answer_id": "AECR-651-005", "score": 0.42640283703804016, "sibling_score": 0.42640283703804016, "answer_score": null, "sibling_qid": "MUM-2026-06-3649-Q007", "sibling_text": "4s engine overhauled by workshop what all checks as 2e", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "What do you check on the crank-pin bearing, gudgeon pin and con rod during a decarb — and a 4-stroke overhauled by a workshop, what do you check as 2/E?", "cross_family": false } ] }, { "qid": "KOC-2026-09-2174-Q003", "text": "life raft service interval, who will do?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Liferaft / HRU", "tid": "KOC-2026-09-2174", "tray": "new", "candidates": [ { "answer_id": "LRHR-A-009", "score": 0.5232787728309631, "sibling_score": 0.5232787728309631, "answer_score": 0.4269844561815262, "sibling_qid": "KOL-2025-09-1064-Q008", "sibling_text": "life raft survey told shore party wil take the life raft and replace", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Annual servicing of the liferaft ashore — what the shore party does and what they check", "cross_family": false }, { "answer_id": "LB-SDT-A-001", "score": 0.520362138748169, "sibling_score": 0.520362138748169, "answer_score": null, "sibling_qid": "KOL-2019-04-0280-Q004", "sibling_text": "lifeboat tests static dynamic and fall renewal specifically wanted to know about the intervals", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat static and dynamic test — purpose and procedure", "cross_family": false }, { "answer_id": "LB-SURV-C-006", "score": 0.5045183897018433, "sibling_score": 0.5045183897018433, "answer_score": null, "sibling_qid": "KOL-2021-08-0535-Q005", "sibling_text": "lifeboat survey inspection interval for end to end fall replacement", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Wire falls — maintenance and renewal interval", "cross_family": false } ] }, { "qid": "KOC-2026-09-2174-Q006", "text": "Widas requirements explain?", "family": "Cargo Ops - Tankers", "subtopic": "IG System", "tid": "KOC-2026-09-2174", "tray": "new", "candidates": [ { "answer_id": "WIDAS-SMK-005", "score": 0.4914122223854065, "sibling_score": 0.4914122223854065, "answer_score": null, "sibling_qid": "MUM-2026-05-3200-Q004", "sibling_text": "all regulation regarding widas", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Regulation, SOLAS Chapter XII references and exemptions", "cross_family": true }, { "answer_id": "WIDAS-SMK-001", "score": 0.49057698249816895, "sibling_score": 0.49057698249816895, "answer_score": null, "sibling_qid": "KOC-2025-06-0613-Q006", "sibling_text": "explain widas", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "WIDAS — water ingress detection and alarm system", "cross_family": true }, { "answer_id": "IWS-002", "score": 0.49009594321250916, "sibling_score": 0.49009594321250916, "answer_score": null, "sibling_qid": "CHE-2026-04-0147-Q008", "sibling_text": "iws notion requirement", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "In-water survey procedure as 2/E — checks, equipment, and thickness measurement", "cross_family": true } ] }, { "qid": "KOC-2026-09-2174-Q007", "text": "hyper mist nozzle distribution criteria? INTERNAL DECIDER QUES", "family": "SOLAS - Fire Safety", "subtopic": "Sprinkler / Water Mist / Hi-Fog", "tid": "KOC-2026-09-2174", "tray": "new", "candidates": [ { "answer_id": "FIRE-P02-01", "score": 0.6376668810844421, "sibling_score": 0.6376668810844421, "answer_score": null, "sibling_qid": "KOC-2026-09-2176-Q009", "sibling_text": "hyper mist regulations internal ques", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist — SOLAS/FSS basis and ECR/machinery-space arrangement", "cross_family": false }, { "answer_id": "FIRE-P01-03", "score": 0.6309470534324646, "sibling_score": 0.6309470534324646, "answer_score": 0.3617829442024231, "sibling_qid": "CHE-2026-05-0562-Q006", "sibling_text": "sprinklers hypermist difference nozzle pump pressure cross question", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist — how the mist is formed and how it extinguishes fire", "cross_family": false }, { "answer_id": "FIRE-P02-03", "score": 0.6083230376243591, "sibling_score": 0.6083230376243591, "answer_score": null, "sibling_qid": "MUM-2026-09-3881-Q005", "sibling_text": "from which tank the water is supplied for hyper mist", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist — low water level or empty FW tank contingency", "cross_family": false } ] }, { "qid": "KOC-2026-09-2175-Q001", "text": "Swell and shrinkage?", "family": "Boilers - Safety & Survey", "subtopic": "Boiler Strength Check", "tid": "KOC-2026-09-2175", "tray": "new", "candidates": [ { "answer_id": "DP-TX-006", "score": 0.5250539779663086, "sibling_score": 0.5250539779663086, "answer_score": 0.3747147649526596, "sibling_qid": "KOL-2025-08-2012-Q004", "sibling_text": "swell and shrink in boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler swell and shrink in relation to DP level measurement and control", "cross_family": true }, { "answer_id": "FOAM-SYS-P04-005", "score": 0.48793309926986694, "sibling_score": 0.48793309926986694, "answer_score": null, "sibling_qid": "MUM-2026-05-3157-Q008S2", "sibling_text": "expansion ratio values", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "5. What decides the foam expansion ratio", "cross_family": true }, { "answer_id": "FOAM-SYS-P04-001", "score": 0.4854646921157837, "sibling_score": 0.4854646921157837, "answer_score": 0.3088586494326591, "sibling_qid": "KOC-2024-11-0450-Q012", "sibling_text": "expansion ratio and values", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "4. Expansion ratios — low, medium, high", "cross_family": true } ] }, { "qid": "KOC-2026-09-2175-Q004", "text": "⁠Scrubber system in your last ship what type?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOC-2026-09-2175", "tray": "new", "candidates": [ { "answer_id": "EGCS-393-002", "score": 0.5504714846611023, "sibling_score": 0.5504714846611023, "answer_score": 0.4116748750209808, "sibling_qid": "KOC-2022-04-0070-Q009", "sibling_text": "closed loop scrubber", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "EGCS types, components and working — open, closed and hybrid loop", "cross_family": true }, { "answer_id": "IGAT-583-001", "score": 0.5311542749404907, "sibling_score": 0.5311542749404907, "answer_score": null, "sibling_qid": "KOL-2023-07-0758-Q001", "sibling_text": "which type of ship you have sail i told oil tankers then tell me the alarm and trip of ig scrubber system", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "State all the alarms, trips and safety cut-outs provided on a tanker inert gas (IG) system.", "cross_family": true }, { "answer_id": "EGCS-393-003", "score": 0.5052074193954468, "sibling_score": 0.5052074193954468, "answer_score": null, "sibling_qid": "MUM-2022-12-0072-Q006", "sibling_text": "scrubber system what all values monitor", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Monitored parameters, records and washwater discharge criteria", "cross_family": true } ] }, { "qid": "KOC-2026-09-2175-Q007", "text": "⁠ Cylinder lacquering ,how to remove?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Cylinder Lubrication", "tid": "KOC-2026-09-2175", "tray": "new", "candidates": [ { "answer_id": "CYL-LINER-P02-007", "score": 0.5910717248916626, "sibling_score": 0.5910717248916626, "answer_score": null, "sibling_qid": "KOC-2026-09-2170-Q001", "sibling_text": "cylinder lacquering causes", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L7 · T044-PART_02-G007High", "cross_family": true }, { "answer_id": "STERN-P03-001", "score": 0.5217159986495972, "sibling_score": 0.5217159986495972, "answer_score": null, "sibling_qid": "KOL-2021-08-3455-Q002", "sibling_text": "how to remove crome liner and inspection after removal", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Chrome / shaft liner: fitting, removal, grooving & wastage, and repair options", "cross_family": true }, { "answer_id": "LO-TEST-P02-003", "score": 0.5049212574958801, "sibling_score": 0.5049212574958801, "answer_score": null, "sibling_qid": "KOC-2024-10-1869-Q006", "sibling_text": "lacquer formation", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Abnormal LO condition: sump rise, colour, high temperature/pressure, lacquer, deterioration", "cross_family": false } ] }, { "qid": "KOC-2026-09-2175-Q010", "text": "⁠Ae mist box fuming, reasons?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "OMD / Oil Mist Detector", "tid": "KOC-2026-09-2175", "tray": "new", "candidates": [ { "answer_id": "AE-HOT-BLOW-001", "score": 0.555705189704895, "sibling_score": 0.555705189704895, "answer_score": null, "sibling_qid": "MUM-2022-12-1036-Q005", "sibling_text": "ae giving dark smoke reasons", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE / DG giving black or dark smoke — causes and corrective action", "cross_family": true }, { "answer_id": "AE-HOT-BLOW-002", "score": 0.5339045524597168, "sibling_score": 0.5339045524597168, "answer_score": 0.4020149827003479, "sibling_qid": "MUM-2025-05-2295-Q006", "sibling_text": "on deck you smell exhaust gas from the vent heads what will be your action and reasons for smell told exhaust from ae crankcase due to blowpast leading to mist box", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "How you know blow-past is occurring in an auxiliary engine — indications and effects", "cross_family": true }, { "answer_id": "INCIN-005", "score": 0.5186946392059326, "sibling_score": 0.5186946392059326, "answer_score": null, "sibling_qid": "MUM-2026-05-3143-Q003", "sibling_text": "mist box what are the connection in mist box", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Components, blowers and the ‘mist box’ query", "cross_family": true } ] }, { "qid": "KOC-2026-09-2175-Q012", "text": "⁠Where in ME shafting?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft Deflection", "tid": "KOC-2026-09-2175", "tray": "new", "candidates": [ { "answer_id": "FB-COUP-002", "score": 0.4238211512565613, "sibling_score": 0.4238211512565613, "answer_score": null, "sibling_qid": "MUM-2026-03-2597-Q003", "sibling_text": "interference fit of shaft", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Interference fit and shrink fit — the principle and the difference", "cross_family": false }, { "answer_id": "CHK-330-004", "score": 0.42230725288391113, "sibling_score": 0.42230725288391113, "answer_score": null, "sibling_qid": "MUM-2026-03-1306-Q014S4", "sibling_text": "bed plate parts choking arrangement alignment of shaft intermediate shaft take out procedure", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Chocking arrangement on the main engine bedplate seating", "cross_family": false }, { "answer_id": "SGD-001", "score": 0.4088224470615387, "sibling_score": 0.4088224470615387, "answer_score": null, "sibling_qid": "KOL-2024-08-3705-Q006", "sibling_text": "shaft graounding 3", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "What is shaft earthing / grounding, how is it connected, and why is it fitted?", "cross_family": true } ] }, { "qid": "KOC-2026-09-2176-Q002", "text": "Tank scope working?", "family": "Gas Detection & Instruments", "subtopic": "Explosimeter / Gas Detector", "tid": "KOC-2026-09-2176", "tray": "new", "candidates": [ { "answer_id": "GAS-DET-005", "score": 0.5399454832077026, "sibling_score": 0.5399454832077026, "answer_score": 0.32065015137195585, "sibling_qid": "MUM-2026-05-3076-Q003", "sibling_text": "tank scope working as per lpg ships", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Tankscope: purpose, working, when to use, gases measured", "cross_family": true }, { "answer_id": "GAS-DET-006", "score": 0.495636910200119, "sibling_score": 0.495636910200119, "answer_score": 0.29310606271028516, "sibling_qid": "MUM-2026-09-3960-Q006", "sibling_text": "tank scope and explosive meter why used explosive meter if tank scope is there", "sibling_family": "Gas Detection & Instruments", "via": "sibling", "answer_title": "Tankscope vs explosimeter: construction, working, where to use, gases", "cross_family": false }, { "answer_id": "MARVS-TANK-003", "score": 0.48351871967315674, "sibling_score": 0.48351871967315674, "answer_score": null, "sibling_qid": "MUM-2023-06-0104-Q019", "sibling_text": "how tank supported", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "How is the cargo tank supported? (Including Moss spherical tank supports)", "cross_family": true } ] }, { "qid": "KOC-2026-09-2176-Q011", "text": "What is PFOS ? INTERNAL QUES", "family": "", "subtopic": "", "tid": "KOC-2026-09-2176", "tray": "new", "candidates": [ { "answer_id": "PF-A-001", "score": 0.4886775612831116, "sibling_score": 0.4886775612831116, "answer_score": null, "sibling_qid": "KOC-2024-12-1451-Q003", "sibling_text": "what is pf and too much cross questions on it", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "What is power factor, and why does it matter on board?", "cross_family": false }, { "answer_id": "VFD-INV-P02-003", "score": 0.4294182062149048, "sibling_score": 0.4294182062149048, "answer_score": null, "sibling_qid": "KOC-2025-01-1468-Q014", "sibling_text": "pwm explain internal no questions", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is PWM and how does pulse-width modulation control the output?", "cross_family": false }, { "answer_id": "PSC-004", "score": 0.4263848066329956, "sibling_score": 0.4263848066329956, "answer_score": null, "sibling_qid": "KOC-2024-12-2058-Q007", "sibling_text": "what is psc form a and psc form b internal paul", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "4. PSC documents: Form A, Form B, action codes, suspension and detention", "cross_family": false } ] }, { "qid": "KOC-2026-09-2177-Q006", "text": "Bulk carries 2026 amendments? INTERNAL QUES", "family": "IMO Structure & Conventions", "subtopic": "SOLAS Chapters", "tid": "KOC-2026-09-2177", "tray": "new", "candidates": [ { "answer_id": "SOLAS12-BC-A-002", "score": 0.47618868947029114, "sibling_score": 0.47618868947029114, "answer_score": null, "sibling_qid": "KOC-2024-05-0345-Q001", "sibling_text": "bulk carrier amendments", "sibling_family": "", "via": "sibling", "answer_title": "Why Chapter XII was introduced; old vs new bulk carriers and latest amendments", "cross_family": false }, { "answer_id": "SOLAS-XII-BC-006", "score": 0.4559125006198883, "sibling_score": 0.4559125006198883, "answer_score": 0.3733925879001617, "sibling_qid": "MUM-2026-04-0925-Q007", "sibling_text": "new amendment wrt bulk carrier", "sibling_family": "SOLAS - General (HOLD)", "via": "sibling", "answer_title": "Latest / amended SOLAS safety requirements for bulk carriers", "cross_family": true }, { "answer_id": "A5-GARB-005", "score": 0.4452292323112488, "sibling_score": 0.4452292323112488, "answer_score": null, "sibling_qid": "MUM-2025-09-2842-Q004", "sibling_text": "annex 5 what s there only for bulk", "sibling_family": "MARPOL - Annex V (Garbage)", "via": "sibling", "answer_title": "Cargo residues and bulk-carrier garbage", "cross_family": true } ] }, { "qid": "KOC-2026-09-2178-Q005", "text": "Running in procedure after piston renewal?", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "KOC-2026-09-2178", "tray": "new", "candidates": [ { "answer_id": "PIST-CSI-B-003", "score": 0.637579619884491, "sibling_score": 0.637579619884491, "answer_score": null, "sibling_qid": "CHE-2026-05-0583-Q006", "sibling_text": "during piston overhaul after cleaning of piston checks", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Inspecting, calibrating and gauging a removed piston", "cross_family": false }, { "answer_id": "PIST-CSI-B-001", "score": 0.6207749247550964, "sibling_score": 0.6207749247550964, "answer_score": null, "sibling_qid": "KOL-2016-05-2987-Q002", "sibling_text": "new piston to b fitted checks and action", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Main-engine piston — construction and the checks expected", "cross_family": false }, { "answer_id": "PIST-CSI-C-001", "score": 0.6150124669075012, "sibling_score": 0.6150124669075012, "answer_score": null, "sibling_qid": "KOL-2025-07-1812-Q011", "sibling_text": "piston is wear down your plan to recondition it onboard as 2e", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston crown damage — pitting, burning, cracks and reconditioning", "cross_family": false } ] }, { "qid": "KOC-2026-09-2179-Q002", "text": "tacho system?", "family": "Cargo Ops - Tankers", "subtopic": "IG System", "tid": "KOC-2026-09-2179", "tray": "new", "candidates": [ { "answer_id": "ANG-ENC-002", "score": 0.600947916507721, "sibling_score": 0.600947916507721, "answer_score": null, "sibling_qid": "KOC-2026-04-1126-Q002", "sibling_text": "tacho components", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Arrangement, location, types and main components", "cross_family": true }, { "answer_id": "EPC-P03-006", "score": 0.5673738121986389, "sibling_score": 0.5673738121986389, "answer_score": 0.3391159951686859, "sibling_qid": "KOL-2017-08-0106-Q007", "sibling_text": "tacho generator operation", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "How does a tachometer work — working principle and location — and what is a tacho-generator?", "cross_family": true }, { "answer_id": "ANG-ENC-003", "score": 0.5066739320755005, "sibling_score": 0.5066739320755005, "answer_score": null, "sibling_qid": "KOC-2024-07-1000-Q003", "sibling_text": "tacho signal where all its going", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Working principle: sensing crank angle, speed and direction", "cross_family": true } ] }, { "qid": "KOC-2026-09-2179-Q006", "text": "gusset stay?", "family": "Boilers - Construction & Components", "subtopic": "Ogee Ring", "tid": "KOC-2026-09-2179", "tray": "new", "candidates": [ { "answer_id": "OGEE-RING-001", "score": 0.5376707911491394, "sibling_score": 0.5376707911491394, "answer_score": null, "sibling_qid": "KOC-2022-01-0954-Q007", "sibling_text": "gusset stay ogee ring", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "The ogee ring: what it is, where it sits, its purpose, and how it's formed and connected", "cross_family": false }, { "answer_id": "FWFB-P02-001", "score": 0.4299917221069336, "sibling_score": 0.4299917221069336, "answer_score": 0.2961725741624832, "sibling_qid": "MUM-2022-10-0061-Q005", "sibling_text": "gusset plate where used", "sibling_family": "", "via": "sibling", "answer_title": "Brackets, knees and gusset plates", "cross_family": false }, { "answer_id": "HATCH-COAM-005", "score": 0.383828341960907, "sibling_score": 0.383828341960907, "answer_score": 0.30751430690288545, "sibling_qid": "KOC-2026-02-0799-Q006", "sibling_text": "hatch coming coming stay", "sibling_family": "", "via": "sibling", "answer_title": "What supports, stays or strengthening members are provided for hatch coamings and large hatch openings?", "cross_family": false } ] }, { "qid": "KOC-2026-09-2180-Q001", "text": "Attempt? Company Name? Engine?", "family": "Status & Introduction", "subtopic": "", "tid": "KOC-2026-09-2180", "tray": "new", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.5057935118675232, "sibling_score": 0.5057935118675232, "answer_score": null, "sibling_qid": "KOC-2026-05-0046-Q002", "sibling_text": "company and type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.5037649869918823, "sibling_score": 0.5037649869918823, "answer_score": null, "sibling_qid": "MUM-2026-09-3912-Q001", "sibling_text": "company name type of ships native place", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.4962921142578125, "sibling_score": 0.4962921142578125, "answer_score": null, "sibling_qid": "KOL-2026-09-4295-Q002", "sibling_text": "engine name and full form", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false } ] }, { "qid": "KOC-2026-09-2180-Q003", "text": "What to do if FCM20 of one unit fail?", "family": "2-Stroke - Reversing & Maneuvering", "subtopic": "EICU / Manoeuvring System", "tid": "KOC-2026-09-2180", "tray": "new", "candidates": [ { "answer_id": "EICU-MAN-P01-004", "score": 0.5264570116996765, "sibling_score": 0.5264570116996765, "answer_score": null, "sibling_qid": "KOC-2026-08-2145-Q006", "sibling_text": "what happens if one unit ccu fails", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Control-unit failure — CCU / ECU / EICU: can you still run the engine?", "cross_family": false }, { "answer_id": "FIVA-220-002", "score": 0.5037657022476196, "sibling_score": 0.5037657022476196, "answer_score": null, "sibling_qid": "KOL-2024-07-1785-Q002", "sibling_text": "fiva if unit fails what will happen to five", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "FIVA control of fuel injection — timing, quantity and actuation", "cross_family": true }, { "answer_id": "REV-PROC-008", "score": 0.4370473623275757, "sibling_score": 0.4370473623275757, "answer_score": 0.32737229466438295, "sibling_qid": "KOC-2021-12-1771-Q002", "sibling_text": "while manoeuvring one unit not reversed what you will do answer for this is don t do anything wait for safe place to anchor then inspect for the problem without one unit reversed engine can be continue to manoeuvred as per manual", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Engine, unit, fuel pump or cam fails to reverse — causes and action", "cross_family": false } ] }, { "qid": "KOC-2026-09-2182-Q007", "text": "Swell and shrinkage, how to rectify?", "family": "Boilers - Safety & Survey", "subtopic": "Boiler Strength Check", "tid": "KOC-2026-09-2182", "tray": "new", "candidates": [ { "answer_id": "LWL-004", "score": 0.450742244720459, "sibling_score": 0.450742244720459, "answer_score": 0.37199851870536804, "sibling_qid": "KOL-2021-08-3446-Q003", "sibling_text": "what is swell and shrinkage how swell and shrinkage is nullified in boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "What are swell and shrinkage, and how are they nullified in the boiler?", "cross_family": true }, { "answer_id": "DP-TX-006", "score": 0.4217097759246826, "sibling_score": 0.4217097759246826, "answer_score": 0.32158550918102263, "sibling_qid": "KOL-2025-08-2012-Q004", "sibling_text": "swell and shrink in boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler swell and shrink in relation to DP level measurement and control", "cross_family": true }, { "answer_id": "LWL-001", "score": 0.4152761697769165, "sibling_score": 0.4152761697769165, "answer_score": null, "sibling_qid": "KOL-2021-12-3498-Q002", "sibling_text": "shrinkage and swelling how to control what are 3 elements in the 3 elements 2 control system feed flow transmitter working", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Explain three-element boiler water level control — the three elements, how it removes swell and shrinkage, and how the PID works", "cross_family": true } ] }, { "qid": "KOC-2026-09-2183-Q001", "text": "What is fn 4b ? What type of engine ?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOC-2026-09-2183", "tray": "new", "candidates": [ { "answer_id": "ENG-NOM-006", "score": 0.5041621923446655, "sibling_score": 0.5041621923446655, "answer_score": null, "sibling_qid": "MUM-2026-04-2104-Q008S2", "sibling_text": "engine spec me b function", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Short-form asks: SMC-C, LMC, and ME vs MC quickly", "cross_family": true }, { "answer_id": "ENG-NOM-005", "score": 0.4990531802177429, "sibling_score": 0.4990531802177429, "answer_score": null, "sibling_qid": "MUM-2026-09-3896-Q001", "sibling_text": "type of engine with nomenclature", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false }, { "answer_id": "ETP-344-P03-001", "score": 0.4925796389579773, "sibling_score": 0.4925796389579773, "answer_score": null, "sibling_qid": "KOL-2026-03-2048-Q001", "sibling_text": "type of engine done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false } ] }, { "qid": "KOC-2026-09-2184-Q001", "text": "Which function ? Remaining functions ? Attempt?", "family": "Status & Introduction", "subtopic": "", "tid": "KOC-2026-09-2184", "tray": "review", "candidates": [ { "answer_id": "IMO-CODES-P03-002", "score": 0.6736052632331848, "sibling_score": 0.6736052632331848, "answer_score": null, "sibling_qid": "MUM-2026-03-0815-Q003", "sibling_text": "which function", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": true }, { "answer_id": "A6-NSEC-003", "score": 0.544825553894043, "sibling_score": 0.544825553894043, "answer_score": null, "sibling_qid": "CHE-2024-10-0010-Q001", "sibling_text": "nox reduction methods got both functions finally cleared class", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "NOx — formation, limits & reduction (SCR / EGR)", "cross_family": true }, { "answer_id": "CHK-RM-001", "score": 0.5408393740653992, "sibling_score": 0.5408393740653992, "answer_score": null, "sibling_qid": "KOL-2022-04-1918-Q004", "sibling_text": "chocks function types", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What are chocks? Function, types, where fitted and how placed — which have the biggest area, and how does the bedplate connect to the hull?", "cross_family": true } ] }, { "qid": "KOC-2026-09-2184-Q002", "text": "Why we use Alternating current? Why not DC everywhere?", "family": "Electrical - Generator & Alternator", "subtopic": "Frequency", "tid": "KOC-2026-09-2184", "tray": "review", "candidates": [ { "answer_id": "ALT-GEN-P04-005", "score": 0.6777098774909973, "sibling_score": 0.6777098774909973, "answer_score": 0.4730706125497818, "sibling_qid": "KOL-2026-02-2960-Q006", "sibling_text": "olden days dc is used on onboard but nowadays ac is used why", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "AC generator versus DC generator, and why ship supply is AC", "cross_family": false }, { "answer_id": "AVR-EXC-A-001", "score": 0.6711271405220032, "sibling_score": 0.6711271405220032, "answer_score": null, "sibling_qid": "CHE-2025-08-0289-Q003", "sibling_text": "avr why dc is used", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "What is the purpose and function of the AVR?", "cross_family": false }, { "answer_id": "VFD-INV-P02-005", "score": 0.6158320903778076, "sibling_score": 0.6158320903778076, "answer_score": null, "sibling_qid": "CHE-2026-02-0479-Q010", "sibling_text": "why dc is used instead of ac and how is it converted", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "How do rectifier, DC link and inverter stages convert AC to DC and DC to AC?", "cross_family": true } ] }, { "qid": "KOC-2026-09-2184-Q006", "text": "Lenzs law?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Faraday Law", "tid": "KOC-2026-09-2184", "tray": "new", "candidates": [ { "answer_id": "FAR-EMI-001", "score": 0.5477022528648376, "sibling_score": 0.5477022528648376, "answer_score": 0.3860508233308792, "sibling_qid": "KOC-2024-01-1325-Q008", "sibling_text": "lenz law", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Faraday's laws of electromagnetic induction and Lenz's law — and their shipboard use", "cross_family": false }, { "answer_id": "EPC-P02-05", "score": 0.4452611207962036, "sibling_score": 0.4452611207962036, "answer_score": null, "sibling_qid": "MUM-2023-10-1405-Q003", "sibling_text": "kirchos law", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "State and explain Kirchhoff's current and voltage laws.", "cross_family": false }, { "answer_id": "FAR-EMI-002", "score": 0.42743778228759766, "sibling_score": 0.42743778228759766, "answer_score": 0.28834099173545835, "sibling_qid": "KOC-2024-09-1405-Q007", "sibling_text": "laws applied in generator", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Fleming's left-hand and right-hand rules — what each tells you, and the laws in a generator", "cross_family": false } ] }, { "qid": "KOC-2026-09-2185-Q001", "text": "What is electrical noise? Reasons (He told there are 7 sources)", "family": "Electrical - Motors & Starters", "subtopic": "Motor Not Starting", "tid": "KOC-2026-09-2185", "tray": "new", "candidates": [ { "answer_id": "MNS-011", "score": 0.4922134280204773, "sibling_score": 0.4922134280204773, "answer_score": 0.34974772334098814, "sibling_qid": "KOL-2025-09-2856-Q006", "sibling_text": "humming noise in motor and reason", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Humming noise from a motor — the reasons, and what you do about it", "cross_family": false }, { "answer_id": "SPHS-B-006", "score": 0.4920499920845032, "sibling_score": 0.4920499920845032, "answer_score": null, "sibling_qid": "KOC-2026-02-0826-Q016", "sibling_text": "reason for vibration in electrical machines other than mechanical", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "You said phase imbalance, but vibration is mechanical — how does an electrical imbalance become a mechanical vibration?", "cross_family": false }, { "answer_id": "ROTSTAT-C-001", "score": 0.488436758518219, "sibling_score": 0.488436758518219, "answer_score": null, "sibling_qid": "KOC-2021-12-1157-Q004", "sibling_text": "cogging crawling its effects what is harmonics how it is caused due to electonic devices how it is reduced i said in lv system u dont have to reduce as exciter rotor gets high frequency for avoiding harmonics and hv there are harmonic filters", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Rotor skewing, cogging, crawling & harmonics", "cross_family": false } ] }, { "qid": "KOC-2026-09-2185-Q002", "text": "Main engine slowdowns with values ?", "family": "Turbocharger", "subtopic": "Turbocharger Construction & Surging", "tid": "KOC-2026-09-2185", "tray": "new", "candidates": [ { "answer_id": "CPP-POL-03", "score": 0.5776592493057251, "sibling_score": 0.5776592493057251, "answer_score": 0.3960877567529678, "sibling_qid": "CHE-2026-05-0609-Q009", "sibling_text": "slow down of main engine p o", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What conditions initiate a slowdown on an ME-C engine, and how is a slowdown safely investigated and reset?", "cross_family": true }, { "answer_id": "ETP-344-P01-005", "score": 0.5654093027114868, "sibling_score": 0.5654093027114868, "answer_score": null, "sibling_qid": "MUM-2026-07-3817-Q001", "sibling_text": "main engine efficiency", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Engine efficiency — thermal, mechanical, overall", "cross_family": false }, { "answer_id": "TC-CS-P01-011", "score": 0.5552999973297119, "sibling_score": 0.5552999973297119, "answer_score": null, "sibling_qid": "KOC-2021-08-1765-Q010", "sibling_text": "main engine t c rpm value", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "K·Turbocharger rpm — typical values", "cross_family": false } ] }, { "qid": "KOC-2026-09-2185-Q004", "text": "Throttle valve on Exh valve.. how to install new one ?", "family": "2-Stroke - Exhaust, Valve & Starting Air", "subtopic": "Exhaust Valve & Exhaust System", "tid": "KOC-2026-09-2185", "tray": "new", "candidates": [ { "answer_id": "EXV-P02-003", "score": 0.6495479941368103, "sibling_score": 0.6495479941368103, "answer_score": null, "sibling_qid": "KOC-2022-08-1790-Q001", "sibling_text": "checks on exhaust valve before mounting explained steps as in manual", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Checks and tests after overhaul — before refitting", "cross_family": false }, { "answer_id": "EXHV-297-002", "score": 0.6494182348251343, "sibling_score": 0.6494182348251343, "answer_score": null, "sibling_qid": "MUM-2023-03-0949-Q005", "sibling_text": "purpose of throttle valve in exh valve", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Actuator parts, throttle/damper, air-spring failure & back-up", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.6401782631874084, "sibling_score": 0.6401782631874084, "answer_score": null, "sibling_qid": "KOL-2022-09-4015-Q010", "sibling_text": "what is the function of throttle valve in exh valve actuator", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false } ] }, { "qid": "KOC-2026-09-2185-Q006", "text": "Narrow passage - LO temperature going high... what to check immediately and action taken ?", "family": "Refrigeration & AC", "subtopic": "HP / LP Trip", "tid": "KOC-2026-09-2185", "tray": "new", "candidates": [ { "answer_id": "RAC-MAT-320-002", "score": 0.591209352016449, "sibling_score": 0.591209352016449, "answer_score": null, "sibling_qid": "CHE-2026-08-0661-Q007", "sibling_text": "what will u check if temperature is not coming down in accommodation", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "2. Accommodation / passenger AC — holding temperature and \"cooling not developing\"", "cross_family": false }, { "answer_id": "REFR-FLT-001", "score": 0.5530183911323547, "sibling_score": 0.5530183911323547, "answer_score": null, "sibling_qid": "KOL-2021-03-3384-Q003", "sibling_text": "temperature of one of the cold storage room is increasing why detect the fault and rectify", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Provision/cold room temperature: will not pull down, runs too low, or will not hold", "cross_family": false }, { "answer_id": "RAC-HPLP-389-001", "score": 0.5516936182975769, "sibling_score": 0.5516936182975769, "answer_score": null, "sibling_qid": "MUM-2026-03-2648-Q001", "sibling_text": "condenser temperature high", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Refrigeration / AC compressor trips on high pressure — causes and checks", "cross_family": false } ] }, { "qid": "KOC-2026-09-2185-Q007", "text": "\nWhat is underwater noise? Source? internal ques\n", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Inverter / VFD", "tid": "KOC-2026-09-2185", "tray": "new", "candidates": [ { "answer_id": "DDHSC-002", "score": 0.5618225336074829, "sibling_score": 0.5618225336074829, "answer_score": null, "sibling_qid": "KOC-2023-02-1807-Q006", "sibling_text": "underwater survey as 2 e internal no questions", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Explain the underwater hull inspection and checks carried out as Second Engineer during drydock.", "cross_family": true }, { "answer_id": "DDI-002", "score": 0.5356125831604004, "sibling_score": 0.5356125831604004, "answer_score": null, "sibling_qid": "KOC-2024-02-1835-Q009", "sibling_text": "underwater survey during drydock internal no questions", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "What is an In-Water Survey in lieu of drydock — when and how is it done, and what do you inspect on the underwater hull as 2/E?", "cross_family": true }, { "answer_id": "EECS-019", "score": 0.5315097570419312, "sibling_score": 0.5315097570419312, "answer_score": 0.3663202807307243, "sibling_qid": "KOC-2024-01-0291-Q005", "sibling_text": "explain cii eexi bwms d2 biofouling under water noise", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "19. CII and EEXI together with BWMS D-2, biofouling and underwater radiated noise", "cross_family": true } ] }, { "qid": "KOC-2026-09-2186-Q001", "text": " Which function Remaining functions Attempt ?", "family": "Status & Introduction", "subtopic": "", "tid": "KOC-2026-09-2186", "tray": "review", "candidates": [ { "answer_id": "IMO-CODES-P03-002", "score": 0.67360520362854, "sibling_score": 0.67360520362854, "answer_score": null, "sibling_qid": "MUM-2026-03-0815-Q003", "sibling_text": "which function", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": true }, { "answer_id": "A6-NSEC-003", "score": 0.544825553894043, "sibling_score": 0.544825553894043, "answer_score": null, "sibling_qid": "CHE-2024-10-0010-Q001", "sibling_text": "nox reduction methods got both functions finally cleared class", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "NOx — formation, limits & reduction (SCR / EGR)", "cross_family": true }, { "answer_id": "CHK-RM-001", "score": 0.5408393740653992, "sibling_score": 0.5408393740653992, "answer_score": null, "sibling_qid": "KOL-2022-04-1918-Q004", "sibling_text": "chocks function types", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What are chocks? Function, types, where fitted and how placed — which have the biggest area, and how does the bedplate connect to the hull?", "cross_family": true } ] }, { "qid": "KOC-2026-09-2186-Q003", "text": "SOLAS chapter 12 reg 13 3 BWMS d1 d2 d3 d4 d5 d2 explain ?", "family": "SOLAS - General (HOLD)", "subtopic": "Solas Chapter 12 - Bulk", "tid": "KOC-2026-09-2186", "tray": "new", "candidates": [ { "answer_id": "SOLAS-XII-BC-005", "score": 0.5016955137252808, "sibling_score": 0.5016955137252808, "answer_score": null, "sibling_qid": "KOC-2026-08-2106-Q008", "sibling_text": "explain chapter 12 of solas regulation 5", "sibling_family": "SOLAS - General (HOLD)", "via": "sibling", "answer_title": "SOLAS Chapter XII Regulation 5 — structural strength of bulk carriers", "cross_family": false }, { "answer_id": "BWM-D1D2-P04-002", "score": 0.4919672906398773, "sibling_score": 0.4919672906398773, "answer_score": null, "sibling_qid": "KOC-2022-01-0048-Q013", "sibling_text": "bwms code explain d1 d2 d4", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "D-2 standard and the BWMS Code (ex-G8) — type approval of treatment systems", "cross_family": true }, { "answer_id": "SOLAS-XII-BC-003", "score": 0.4819015860557556, "sibling_score": 0.4819015860557556, "answer_score": null, "sibling_qid": "MUM-2023-01-0079-Q003", "sibling_text": "what is regulation 12 chapter 12 of solas", "sibling_family": "SOLAS - General (HOLD)", "via": "sibling", "answer_title": "SOLAS Chapter XII Regulation 12 — hold, ballast and dry-space water ingress alarms", "cross_family": false } ] }, { "qid": "KOC-2026-09-2186-Q006", "text": "CIC ? Internal ques", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "CII / Carbon Intensity", "tid": "KOC-2026-09-2186", "tray": "new", "candidates": [ { "answer_id": "PSC-SURV-P01-002", "score": 0.5867847800254822, "sibling_score": 0.5867847800254822, "answer_score": 0.27772238552570344, "sibling_qid": "KOL-2022-08-0664-Q003", "sibling_text": "what is cic", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is a Concentrated Inspection Campaign (CIC) under PSC?", "cross_family": true }, { "answer_id": "CII-P01-001", "score": 0.5831826329231262, "sibling_score": 0.5831826329231262, "answer_score": null, "sibling_qid": "KOL-2023-05-0745-Q004", "sibling_text": "cii and x question", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is CII and what is its purpose?", "cross_family": false }, { "answer_id": "CII-CALC-P03-001", "score": 0.5690737962722778, "sibling_score": 0.5690737962722778, "answer_score": null, "sibling_qid": "CHE-2025-12-0095-Q006", "sibling_text": "what is cii how do you calculate x questions is all", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Calculating attained & required CII — formula, unit, reduction factor, measurements", "cross_family": false } ] }, { "qid": "KOC-2026-09-2187-Q006", "text": "Aux engine big fire actions ?", "family": "SOLAS - Fire Safety", "subtopic": "Fixed Firefighting", "tid": "KOC-2026-09-2187", "tray": "new", "candidates": [ { "answer_id": "FIRE-P04-05", "score": 0.5564713478088379, "sibling_score": 0.5564713478088379, "answer_score": null, "sibling_qid": "MUM-2023-03-0094-Q004", "sibling_text": "fire in dd actions as 2e if no ce", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fire in dry dock / alongside repair — 2/E stepwise actions", "cross_family": false }, { "answer_id": "UPT-FIRE-001", "score": 0.5346422791481018, "sibling_score": 0.5346422791481018, "answer_score": 0.376113723218441, "sibling_qid": "KOC-2025-01-1892-Q005", "sibling_text": "uptake fire actions", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "The 4/E reports an uptake fire — your actions as 2/E", "cross_family": true }, { "answer_id": "UPT-FIRE-003", "score": 0.5209640264511108, "sibling_score": 0.5209640264511108, "answer_score": 0.34504638761281964, "sibling_qid": "KOC-2024-06-1843-Q007", "sibling_text": "egb uptake fire actions", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Fire in the exhaust gas boiler or economiser — actions and instructions to the duty engineers", "cross_family": true } ] }, { "qid": "KOC-2026-09-2187-Q007", "text": "Asked about PSC regime yearly inspection and 2025 & 2026 topic for CIC inspection ? INTERNAL QUES", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "CII / Carbon Intensity", "tid": "KOC-2026-09-2187", "tray": "new", "candidates": [ { "answer_id": "PSC-SURV-P01-002", "score": 0.6061443090438843, "sibling_score": 0.6061443090438843, "answer_score": 0.4256438374519348, "sibling_qid": "MUM-2024-08-1457-Q016", "sibling_text": "cic inspection under psc", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is a Concentrated Inspection Campaign (CIC) under PSC?", "cross_family": true }, { "answer_id": "PSC-003", "score": 0.5736396312713623, "sibling_score": 0.5736396312713623, "answer_score": null, "sibling_qid": "MUM-2026-05-3313-Q004", "sibling_text": "inspections under psc", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "3. What the PSCO checks after coming aboard, and how the inspection is conducted", "cross_family": true }, { "answer_id": "PSC-RO-P02-003", "score": 0.5481976270675659, "sibling_score": 0.5481976270675659, "answer_score": null, "sibling_qid": "KOL-2018-04-0166-Q008", "sibling_text": "psc inspection and with what reference do they inspect", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What gives PSC its authority to inspect, and what references are used?", "cross_family": true } ] }, { "qid": "KOC-2026-09-2189-Q005", "text": "Official log book entries ?", "family": "Shipboard Records", "subtopic": "Official Log Book", "tid": "KOC-2026-09-2189", "tray": "new", "candidates": [ { "answer_id": "AIRP-188-005", "score": 0.6269305944442749, "sibling_score": 0.6269305944442749, "answer_score": null, "sibling_qid": "KOC-2026-02-0835-Q007", "sibling_text": "ods log what all entries", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "ODS Record Book and the IAPP equipment list — what and where?", "cross_family": true }, { "answer_id": "A6-NSEC-002", "score": 0.5712703466415405, "sibling_score": 0.5712703466415405, "answer_score": null, "sibling_qid": "KOL-2026-02-1170-Q010", "sibling_text": "entries made in nox technical file and when", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "NOx Technical Code vs NOx Technical File", "cross_family": true }, { "answer_id": "ORB-IOPP-OWS-002", "score": 0.5694265961647034, "sibling_score": 0.5694265961647034, "answer_score": 0.42105497568845746, "sibling_qid": "MUM-2026-06-3584-Q008", "sibling_text": "oil record book entries", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "The Oil Record Book Part I — purpose, the letter codes, and how entries are made", "cross_family": true } ] }, { "qid": "KOC-2026-09-2190-Q005", "text": "⁠Armature reactions ?", "family": "Electrical - Generator & Alternator", "subtopic": "Armature Reaction", "tid": "KOC-2026-09-2190", "tray": "new", "candidates": [ { "answer_id": "AR-263-004", "score": 0.6315293908119202, "sibling_score": 0.6315293908119202, "answer_score": null, "sibling_qid": "KOC-2025-10-1601-Q002", "sibling_text": "interpole armature reaction", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "What are interpoles / compensating windings, and how do they help?", "cross_family": false }, { "answer_id": "AR-263-001", "score": 0.5552296042442322, "sibling_score": 0.5552296042442322, "answer_score": 0.33978321403265, "sibling_qid": "KOC-2024-03-1339-Q002", "sibling_text": "armature reaction", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "What is armature reaction, and where is it found?", "cross_family": false }, { "answer_id": "ALT-GEN-P04-003", "score": 0.3369773685932159, "sibling_score": null, "answer_score": 0.3369773685932159, "sibling_qid": "", "sibling_text": "armature reaction in alternators armature reaction stator current mmf reacting with rotor field mmf unity pf mainly cross magnetising distorting", "sibling_family": "", "via": "answer_title", "answer_title": "Armature reaction in alternators", "cross_family": false } ] }, { "qid": "KOC-2026-09-2190-Q006", "text": "Insulation monitoring ?", "family": "Electrical - Motors & Starters", "subtopic": "IR Test / Insulation Resistance", "tid": "KOC-2026-09-2190", "tray": "review", "candidates": [ { "answer_id": "IR-TEST-D-001", "score": 0.7089526057243347, "sibling_score": 0.7089526057243347, "answer_score": null, "sibling_qid": "KOL-2022-09-4012-Q002", "sibling_text": "insulation degrade reason how to measure", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What insulation resistance is — definition, significance, factors", "cross_family": false }, { "answer_id": "EF-DET-P01-003", "score": 0.7065954804420471, "sibling_score": 0.7065954804420471, "answer_score": null, "sibling_qid": "MUM-2026-06-3424-Q008", "sibling_text": "how low insulation alarm system and meter works", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Tracing and locating an earth fault or low-insulation fault on a 440V / 220V / deck circuit", "cross_family": false }, { "answer_id": "IR-TEST-B-002", "score": 0.6979398131370544, "sibling_score": 0.6979398131370544, "answer_score": null, "sibling_qid": "KOL-2022-08-2589-Q001", "sibling_text": "how to measure insulation", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "IR test of a low-voltage motor — the standard megger procedure", "cross_family": false } ] }, { "qid": "KOC-2026-09-2191-Q003", "text": "Ch content high in boiler identification ?", "family": "Boilers - Safety & Survey", "subtopic": "Water Test (Chloride / pH / Phosphate)", "tid": "KOC-2026-09-2191", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-002", "score": 0.7013328075408936, "sibling_score": 0.7013328075408936, "answer_score": 0.4603168249130249, "sibling_qid": "KOC-2026-09-2191-Q010", "sibling_text": "chloride content high in boiler identification and effects", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What does high boiler-water chloride, salinity or TDS indicate, and what action is required?", "cross_family": false }, { "answer_id": "BW-TEST-D-002", "score": 0.6248862743377686, "sibling_score": 0.6248862743377686, "answer_score": null, "sibling_qid": "KOL-2017-08-1322-Q004", "sibling_text": "boiler different types of corrosion boiler condensate value how to check", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Impurities, contamination and the types of boiler corrosion", "cross_family": false }, { "answer_id": "BLR-CHEM-008", "score": 0.6176944375038147, "sibling_score": 0.6176944375038147, "answer_score": null, "sibling_qid": "KOL-2019-07-1467-Q003", "sibling_text": "boiler contaminants", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "8. Boiler-water contaminants, hardness, scale and sludge", "cross_family": false } ] }, { "qid": "KOC-2026-09-2192-Q001", "text": "Type of ship- oil/chem ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2026-09-2192", "tray": "review", "candidates": [ { "answer_id": "CPFE-583-002", "score": 0.7353282570838928, "sibling_score": 0.7353282570838928, "answer_score": null, "sibling_qid": "MUM-2026-06-3604-Q002", "sibling_text": "type of ship chemical product", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Why a submerged hydraulic pump on a product or chemical tanker — and what makes a cargo pump different", "cross_family": false }, { "answer_id": "IBC-BCH-B-004", "score": 0.7305658459663391, "sibling_score": 0.7305658459663391, "answer_score": null, "sibling_qid": "MUM-2026-05-3156-Q001", "sibling_text": "type of ships chemical tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Certificate of Fitness and MARPOL Annex II in practice", "cross_family": false }, { "answer_id": "FQCC-583-A-003", "score": 0.6980518698692322, "sibling_score": 0.6980518698692322, "answer_score": null, "sibling_qid": "KOC-2026-03-1110-Q008", "sibling_text": "grade of fuel oil used in ur ship", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel grades and marine fuel naming", "cross_family": true } ] }, { "qid": "KOC-2026-09-2192-Q002", "text": "IMDG how many volume ?", "family": "Other Conventions", "subtopic": "IMDG Code", "tid": "KOC-2026-09-2192", "tray": "new", "candidates": [ { "answer_id": "IMDG-001", "score": 0.6011037826538086, "sibling_score": 0.6011037826538086, "answer_score": 0.31597060114145276, "sibling_qid": "MUM-2026-01-0683-Q005", "sibling_text": "number of suppliments in imdg", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is the IMDG Code? Its contents, parts and supplements", "cross_family": false }, { "answer_id": "HKC-IHM-B-001", "score": 0.48408979177474976, "sibling_score": 0.48408979177474976, "answer_score": null, "sibling_qid": "MUM-2022-11-0067-Q006", "sibling_text": "ihm how many parts", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is the IHM — its parts, categories and contents?", "cross_family": false }, { "answer_id": "FINJ-003", "score": 0.4475412666797638, "sibling_score": 0.4475412666797638, "answer_score": null, "sibling_qid": "MUM-2022-07-1016-Q012", "sibling_text": "sack volume", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Sac volume, zero-sac and the slide-type fuel valve development", "cross_family": true } ] }, { "qid": "KOC-2026-09-2192-Q003", "text": "IMDG vol1 and vol2 contents ?", "family": "Other Conventions", "subtopic": "IMDG Code", "tid": "KOC-2026-09-2192", "tray": "new", "candidates": [ { "answer_id": "IMDG-001", "score": 0.5000147223472595, "sibling_score": 0.5000147223472595, "answer_score": 0.32669496834278106, "sibling_qid": "MUM-2026-01-0683-Q005", "sibling_text": "number of suppliments in imdg", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is the IMDG Code? Its contents, parts and supplements", "cross_family": false }, { "answer_id": "GRB-321-004", "score": 0.44934967160224915, "sibling_score": 0.44934967160224915, "answer_score": 0.23641786724328995, "sibling_qid": "KOC-2023-08-0208-Q003", "sibling_text": "gargage record book part 1 and part2", "sibling_family": "MARPOL - Annex V (Garbage)", "via": "sibling", "answer_title": "Garbage Record Book — Part I and Part II", "cross_family": true }, { "answer_id": "HKC-IHM-B-001", "score": 0.4425954222679138, "sibling_score": 0.4425954222679138, "answer_score": null, "sibling_qid": "MUM-2024-08-0192-Q001", "sibling_text": "contents of ihm", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is the IHM — its parts, categories and contents?", "cross_family": false } ] }, { "qid": "KOC-2026-09-2192-Q005", "text": "UN number ?", "family": "Other Conventions", "subtopic": "IMDG Code", "tid": "KOC-2026-09-2192", "tray": "new", "candidates": [ { "answer_id": "IMDG-003", "score": 0.6497980952262878, "sibling_score": 0.6497980952262878, "answer_score": 0.3243568271398544, "sibling_qid": "KOC-2024-01-0265-Q007", "sibling_text": "what is un number hex number", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is a UN number and a Proper Shipping Name? Give an example", "cross_family": false }, { "answer_id": "ANCH-CHN-A-003", "score": 0.6497806906700134, "sibling_score": 0.6497806906700134, "answer_score": null, "sibling_qid": "MUM-2026-01-0726-Q004", "sibling_text": "en number", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Equipment Number & how cable length is decided", "cross_family": true }, { "answer_id": "SHELL-PLT-A-001", "score": 0.5105288624763489, "sibling_score": 0.5105288624763489, "answer_score": null, "sibling_qid": "KOC-2022-12-0114-Q009", "sibling_text": "how numbering is done", "sibling_family": "", "via": "sibling", "answer_title": "The shell expansion plan, and how you identify a plate", "cross_family": false } ] }, { "qid": "KOC-2026-09-2192-Q006", "text": "Proper shipping name ?", "family": "Electrical - Generator & Alternator", "subtopic": "AVR / Excitation", "tid": "KOC-2026-09-2192", "tray": "new", "candidates": [ { "answer_id": "SEEMP-123-B-002", "score": 0.59648597240448, "sibling_score": 0.59648597240448, "answer_score": null, "sibling_qid": "KOL-2021-10-0569-Q004", "sibling_text": "seemp how we r using on ship name", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP in practice — implementation and energy-efficiency measures", "cross_family": true }, { "answer_id": "UPS-387-002", "score": 0.5516266822814941, "sibling_score": 0.5516266822814941, "answer_score": null, "sibling_qid": "MUM-2023-08-1397-Q002", "sibling_text": "which ups is used on ship", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Which UPS is used on board, and on what loads?", "cross_family": true }, { "answer_id": "FLAG-ST-006", "score": 0.5403997302055359, "sibling_score": 0.5403997302055359, "answer_score": null, "sibling_qid": "KOL-2017-05-0088-Q001", "sibling_text": "dg shipping purpose and role", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Indian flag administration — MS Act, DGMA and the boards", "cross_family": true } ] }, { "qid": "KOC-2026-09-2192-Q007", "text": "Requirement for inclining test, why it's done ?", "family": "Ship Construction & Stability", "subtopic": "Inclining Experiment", "tid": "KOC-2026-09-2192", "tray": "new", "candidates": [ { "answer_id": "INCL-EXP-C-001", "score": 0.5533034801483154, "sibling_score": 0.5533034801483154, "answer_score": 0.3794841170310974, "sibling_qid": "KOC-2025-01-0530-Q005", "sibling_text": "requirement for inclining experiment procedure", "sibling_family": "", "via": "sibling", "answer_title": "What preparations, conditions, precautions, data, and procedure are required for an inclining experiment?", "cross_family": false }, { "answer_id": "INCL-EXP-B-001", "score": 0.5030198097229004, "sibling_score": 0.5030198097229004, "answer_score": 0.37878434658050536, "sibling_qid": "MUM-2026-01-0713-Q001", "sibling_text": "purpose of inclining experiment", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "B1. Purpose and outputs of an inclining experiment", "cross_family": false }, { "answer_id": "INCL-EXP-B-002", "score": 0.501212477684021, "sibling_score": 0.501212477684021, "answer_score": null, "sibling_qid": "KOC-2025-07-0633-Q024", "sibling_text": "why to we do incling experiment when it s done", "sibling_family": "", "via": "sibling", "answer_title": "B2. When and for which ships the experiment is carried out", "cross_family": false } ] }, { "qid": "KOC-2026-09-2192-Q011", "text": "Which all items exempted from CSM ?", "family": "Drydock & Underwater Surveys", "subtopic": "CSM / Continuous Survey", "tid": "KOC-2026-09-2192", "tray": "new", "candidates": [ { "answer_id": "CSM-214-002", "score": 0.639744758605957, "sibling_score": 0.639744758605957, "answer_score": 0.3877051532268524, "sibling_qid": "KOC-2024-05-0344-Q003", "sibling_text": "which all do not come under csm", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "What is NOT included in CSM", "cross_family": false }, { "answer_id": "CSM-214-001", "score": 0.5794728994369507, "sibling_score": 0.5794728994369507, "answer_score": null, "sibling_qid": "KOC-2023-02-0150-Q001", "sibling_text": "csm what all machines will not come under csm", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "What CSM is, and why it is called “continuous”", "cross_family": false }, { "answer_id": "CSM-214-003", "score": 0.5379275679588318, "sibling_score": 0.5379275679588318, "answer_score": null, "sibling_qid": "KOC-2026-01-0781-Q002", "sibling_text": "csm machines not under ce", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "What the Chief Engineer can credit, what he cannot, and how", "cross_family": false } ] }, { "qid": "KOC-2026-09-2193-Q001", "text": "ME HPS Lube oil diagram ? ", "family": "Shafting, Propeller & Rudder", "subtopic": "Stern Tube / Tail Shaft Bearings", "tid": "KOC-2026-09-2193", "tray": "review", "candidates": [ { "answer_id": "STT-BRG-007", "score": 0.6826935410499573, "sibling_score": 0.6826935410499573, "answer_score": null, "sibling_qid": "KOC-2025-08-1048-Q005", "sibling_text": "s t lube oil system diagram", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "6. Stern tube lubrication system — oil flow, gravity/header tanks, why gravity not pump", "cross_family": false }, { "answer_id": "BRLU-581-001", "score": 0.5484859943389893, "sibling_score": 0.5484859943389893, "answer_score": 0.4667946666479111, "sibling_qid": "MUM-2026-06-3491-Q007", "sibling_text": "lub oil flow from lub oil pump to sump main engine", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main engine lubrication path — large 2-stroke crosshead engine", "cross_family": true }, { "answer_id": "HYDRO-LUB-002", "score": 0.5312817096710205, "sibling_score": 0.5312817096710205, "answer_score": null, "sibling_qid": "KOC-2025-10-1948-Q010", "sibling_text": "what is hydrodynamic lubrication draw pressure distribution diagram", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "2. Hydrodynamic lubrication & oil-wedge formation", "cross_family": true } ] }, { "qid": "KOC-2026-09-2193-Q004", "text": "Why refer is belt driven?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "MOB Marker", "tid": "KOC-2026-09-2193", "tray": "new", "candidates": [ { "answer_id": "REEF-COMP-005", "score": 0.5404464602470398, "sibling_score": 0.5404464602470398, "answer_score": 0.43949829936027524, "sibling_qid": "KOC-2025-12-1984-Q004", "sibling_text": "reffer compressor why belt driven 4b pass 6 repeat", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "V-belt drive on reefer compressors — why, and checking condition, alignment, tension, replacement", "cross_family": true }, { "answer_id": "CCSC-314-002", "score": 0.46019166707992554, "sibling_score": 0.46019166707992554, "answer_score": null, "sibling_qid": "KOL-2019-10-1492-Q008", "sibling_text": "capacity control refrigeration refrigerant charging why belt driven", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Compressor capacity control and the capacity controller", "cross_family": true }, { "answer_id": "CHAIN-TENS-B-004", "score": 0.4131442904472351, "sibling_score": 0.4131442904472351, "answer_score": null, "sibling_qid": "KOL-2021-08-1612-Q001", "sibling_text": "advantage chain drive over gear drive", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Chain drive versus gear drive for the camshaft", "cross_family": true } ] }, { "qid": "KOC-2026-09-2193-Q006", "text": "what is priming and foaming? why it happens? KEY ANS : Excessive dosage of chemicals and improper water treatment is the main point here needs.", "family": "Boilers - Operations & Firing", "subtopic": "Scum / Blow Down", "tid": "KOC-2026-09-2193", "tray": "new", "candidates": [ { "answer_id": "FOAM32-P07-002", "score": 0.5514451861381531, "sibling_score": 0.5514451861381531, "answer_score": null, "sibling_qid": "KOL-2018-06-2202-Q017", "sibling_text": "er flooding with foam", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Engine-room foam operation — flooding, discharge rate and dissipation", "cross_family": true }, { "answer_id": "BWT-B-002", "score": 0.5476200580596924, "sibling_score": 0.5476200580596924, "answer_score": 0.4219941586256027, "sibling_qid": "KOL-2019-07-1460-Q003", "sibling_text": "boiler water phosphate reserve why add chemical coagulant etc etc etc", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Why is phosphate tested and maintained in boiler water, and what does phosphate hideout indicate?", "cross_family": true }, { "answer_id": "FOAM-SYS-P05-005", "score": 0.5401006937026978, "sibling_score": 0.5401006937026978, "answer_score": null, "sibling_qid": "KOL-2025-09-1041-Q002", "sibling_text": "what is foam concentration what is foam", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "5. Foam types carried onboard and how the correct foam is selected", "cross_family": true } ] }, { "qid": "KOC-2026-09-2193-Q007", "text": "ME-LGIA ammonia engine. How it’s working and how nox is reduced in this engine?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE vs ME Differences", "tid": "KOC-2026-09-2193", "tray": "new", "candidates": [ { "answer_id": "BIO-FUEL-004", "score": 0.6428056955337524, "sibling_score": 0.6428056955337524, "answer_score": 0.5580957114696502, "sibling_qid": "MUM-2026-03-0853-Q004", "sibling_text": "what is provided to control nox in amonia engine", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Ammonia injection in the electronically-controlled (ME) two-stroke", "cross_family": true }, { "answer_id": "ALT-FUEL-004", "score": 0.5839511156082153, "sibling_score": 0.5839511156082153, "answer_score": 0.5492225289344788, "sibling_qid": "KOC-2024-11-1017-Q002", "sibling_text": "ammonia engine circulation pr and injection pr mode of operation", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "How is ammonia used as a future marine fuel, including ammonia-engine operation?", "cross_family": true }, { "answer_id": "A6-NSEC-003", "score": 0.5816360712051392, "sibling_score": 0.5816360712051392, "answer_score": null, "sibling_qid": "KOL-2025-03-4050-Q004", "sibling_text": "nox reduction within engine", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "NOx — formation, limits & reduction (SCR / EGR)", "cross_family": true } ] }, { "qid": "KOC-2026-09-2193-Q008", "text": "What will u survey in a sludge pump? Type of pump? INTERNAL QUES", "family": "Pumps - Centrifugal & PD", "subtopic": "Bilge Line / Pump", "tid": "KOC-2026-09-2193", "tray": "review", "candidates": [ { "answer_id": "PCP-BF01-001", "score": 0.6759840846061707, "sibling_score": 0.6759840846061707, "answer_score": null, "sibling_qid": "MUM-2026-03-2617-Q003", "sibling_text": "type of pump for sludge pump", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "What is a progressive cavity pump — construction and working", "cross_family": false }, { "answer_id": "PCD-P01-02", "score": 0.6737686991691589, "sibling_score": 0.6737686991691589, "answer_score": null, "sibling_qid": "MUM-2025-12-2886-Q001", "sibling_text": "all types of pumps used on ship benefits of reciprocating pump which type of pump was sludge pump on your ship he also wanted to hear progressive cavity pump what is the most important thing to note when starting screw pump it should not run dry", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Types and classification of pumps on board — and which pump for which duty", "cross_family": false }, { "answer_id": "PCD-P03-01", "score": 0.6578675508499146, "sibling_score": 0.6578675508499146, "answer_score": 0.4549363136291504, "sibling_qid": "KOL-2025-12-4076-Q002", "sibling_text": "centrifugal pump overhaul and checks for survey", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Centrifugal pump overhaul — procedure, checks, clearances and survey evidence", "cross_family": false } ] }, { "qid": "KOC-2026-09-2193-Q010", "text": "Difference between ac belt and reefer belt ? INTERNAL QUES", "family": "Refrigeration & AC", "subtopic": "Reefer Compressor", "tid": "KOC-2026-09-2193", "tray": "review", "candidates": [ { "answer_id": "REEF-COMP-005", "score": 0.6742225885391235, "sibling_score": 0.6742225885391235, "answer_score": 0.4826607406139374, "sibling_qid": "KOC-2024-11-1017-Q006", "sibling_text": "reefer belt driven reason int no qus", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "V-belt drive on reefer compressors — why, and checking condition, alignment, tension, replacement", "cross_family": false }, { "answer_id": "CCSC-314-002", "score": 0.6413419842720032, "sibling_score": 0.6413419842720032, "answer_score": null, "sibling_qid": "KOL-2019-10-1492-Q008", "sibling_text": "capacity control refrigeration refrigerant charging why belt driven", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Compressor capacity control and the capacity controller", "cross_family": false }, { "answer_id": "REF-CYC-013", "score": 0.6172951459884644, "sibling_score": 0.6172951459884644, "answer_score": 0.47566962242126465, "sibling_qid": "KOC-2024-08-1858-Q005", "sibling_text": "difference between a c and refer refrigeration system", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Difference between an air-conditioning system and a refrigeration system", "cross_family": false } ] }, { "qid": "KOC-2026-09-2194-Q004", "text": "Multimeter how many sockets. Details of the sockets ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Galvanometer / Multimeter / Clamp Meter", "tid": "KOC-2026-09-2194", "tray": "new", "candidates": [ { "answer_id": "GMCM-583-A-002", "score": 0.6272521018981934, "sibling_score": 0.6272521018981934, "answer_score": 0.4603630810976028, "sibling_qid": "KOC-2023-03-1245-Q007", "sibling_text": "multimeter n x", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "02. The multimeter — construction, internal circuit, and how one instrument reads several different parameters", "cross_family": false }, { "answer_id": "GMCM-583-A-007", "score": 0.5791541337966919, "sibling_score": 0.5791541337966919, "answer_score": 0.44330042600631714, "sibling_qid": "KOC-2024-01-1324-Q005", "sibling_text": "how to use multimeter hazards associated with using multimeter how many leads how we use it for voltage and current measurement diode measurement if diode function not there", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "07. Hazards and precautions when using a multimeter — and can you check live current with one?", "cross_family": false }, { "answer_id": "GMCM-583-A-003", "score": 0.5788900256156921, "sibling_score": 0.5788900256156921, "answer_score": 0.4360878050327301, "sibling_qid": "KOC-2024-08-1384-Q007", "sibling_text": "how do you measure voltage and current in multimeter internal motor overhaul onboard and its kw and terminal box connection iec cable standard and its properties", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "03. Measuring current with a multimeter — series connection, jack selection, and control circuits", "cross_family": false } ] }, { "qid": "KOC-2026-09-2194-Q005", "text": "What is AVR droop ?", "family": "Electrical - Generator & Alternator", "subtopic": "Voltage Dip / Droop", "tid": "KOC-2026-09-2194", "tray": "new", "candidates": [ { "answer_id": "AVRD-618-001", "score": 0.6322174668312073, "sibling_score": 0.6322174668312073, "answer_score": 0.3755835503339767, "sibling_qid": "KOC-2022-07-1186-Q004", "sibling_text": "avr droop", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "What is AVR droop, and why is it required?", "cross_family": false }, { "answer_id": "DROOP-004", "score": 0.38081809878349304, "sibling_score": null, "answer_score": 0.38081809878349304, "sibling_qid": "", "sibling_text": "avr generator droop sharing reactive kvar avr droop terminal voltage falls slightly as reactive lagging load rises purpose share kvar between paralleled alternators prevents circulating reactive currents", "sibling_family": "", "via": "answer_title", "answer_title": "AVR / generator droop — sharing reactive kVAr", "cross_family": false }, { "answer_id": "AVRD-618-004", "score": 0.346240359544754, "sibling_score": null, "answer_score": 0.346240359544754, "sibling_qid": "", "sibling_text": "explain the voltage droop compensator compensator the circuit that creates the droop the stamford analogue form is a droop ct plus burden resistor while digital avrs program it ct on one specified phase its signal is vector summed with the voltage sensing", "sibling_family": "", "via": "answer_title", "answer_title": "Explain the voltage droop compensator.", "cross_family": false } ] }, { "qid": "KOC-2026-09-2194-Q007", "text": "Compressor L.O pressure trip how it works ?", "family": "Refrigeration & AC", "subtopic": "Reefer Compressor", "tid": "KOC-2026-09-2194", "tray": "review", "candidates": [ { "answer_id": "REEF-COMP-002", "score": 0.7276261448860168, "sibling_score": 0.7276261448860168, "answer_score": null, "sibling_qid": "KOC-2025-11-1645-Q004", "sibling_text": "refer lo low pressure trip working", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Lube-oil low-pressure / differential-pressure trip — how it works, tests and sets", "cross_family": false }, { "answer_id": "REEF-COMP-001", "score": 0.6773257851600647, "sibling_score": 0.6773257851600647, "answer_score": null, "sibling_qid": "KOC-2024-07-1370-Q007", "sibling_text": "high pressure trip on refer compressor", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Reefer/AC compressor safeties and cut-outs — safety valve, HP and LP cut-outs", "cross_family": false }, { "answer_id": "CAP-CTRL-005", "score": 0.6490304470062256, "sibling_score": 0.6490304470062256, "answer_score": 0.49834412038326265, "sibling_qid": "KOC-2021-12-0947-Q005", "sibling_text": "capacity controller in air conditioning load reduces causing suction pressure in the line reduce a pressure switch located on the suction line of the compressor senses and activate switch to send electrical signal to the capacity control solenoid valve of that particular bank to operate the three way valve to drain the oil from the piston which receives oil from attached lo oil pump", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "CG-005 · What happens as load drops or the room reaches set temperature", "cross_family": false } ] }, { "qid": "KOC-2026-09-2195-Q001", "text": "Type of vessel, which attempt, power distribution onboard ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2026-09-2195", "tray": "review", "candidates": [ { "answer_id": "ALT-GEN-P02-001", "score": 0.7511817812919617, "sibling_score": 0.7511817812919617, "answer_score": 0.49905453026294705, "sibling_qid": "MUM-2026-09-3974-Q008", "sibling_text": "define last vessel power generation system", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Alternator/generator specifications, ratings and ship electrical supply details", "cross_family": false }, { "answer_id": "T038-P01-002", "score": 0.7176395654678345, "sibling_score": 0.7176395654678345, "answer_score": null, "sibling_qid": "CHE-2026-04-0374-Q001", "sibling_text": "type of ship sailed high or low voltage lv ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "HV system onboard — layout, components, applications, earthing & protection", "cross_family": false }, { "answer_id": "MSB-ESB-D-001", "score": 0.7171159982681274, "sibling_score": 0.7171159982681274, "answer_score": null, "sibling_qid": "MUM-2024-02-1424-Q001", "sibling_text": "electrical power distribution on ur ship", "sibling_family": "", "via": "sibling", "answer_title": "Main & emergency switchboards: function, construction & ship power distribution", "cross_family": false } ] }, { "qid": "KOC-2026-09-2195-Q002", "text": "What does 60Hz Ac mean. Explain in detail ?", "family": "MARPOL - Annex I (Oil)", "subtopic": "Oil Discharge Criteria", "tid": "KOC-2026-09-2195", "tray": "new", "candidates": [ { "answer_id": "ALT-GEN-P04-007", "score": 0.6124585866928101, "sibling_score": 0.6124585866928101, "answer_score": 0.4677199423313141, "sibling_qid": "KOC-2025-10-1602-Q006", "sibling_text": "frequency 60 hz meaning why we using 60hz", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Frequency, poles, speed and 50/60 Hz relation", "cross_family": true }, { "answer_id": "HV-SYS-P06-002", "score": 0.5483273267745972, "sibling_score": 0.5483273267745972, "answer_score": null, "sibling_qid": "MUM-2025-10-1738-Q001", "sibling_text": "power system kv phase 3 frequency 60hz prime mover driven alternator hv system 6 6kv", "sibling_family": "", "via": "sibling", "answer_title": "How HV is generated onboard and how the HV alternator is arranged", "cross_family": false }, { "answer_id": "RMS-VAL-006", "score": 0.5228502750396729, "sibling_score": 0.5228502750396729, "answer_score": null, "sibling_qid": "KOC-2025-07-1558-Q010", "sibling_text": "why ac it s 440 220 110", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Why standard voltages are 220, 440, 1100 — not 200, 400, 1000", "cross_family": true } ] }, { "qid": "KOC-2026-09-2195-Q006", "text": "Evolution of AC ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "RMS Value", "tid": "KOC-2026-09-2195", "tray": "new", "candidates": [ { "answer_id": "RMS-VAL-001", "score": 0.5936278104782104, "sibling_score": 0.5936278104782104, "answer_score": null, "sibling_qid": "KOC-2025-09-1577-Q007", "sibling_text": "evolution of ac system", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "RMS value and its significance", "cross_family": false }, { "answer_id": "VOLT-SYS-007", "score": 0.4219113886356354, "sibling_score": 0.4219113886356354, "answer_score": 0.2615077942609787, "sibling_qid": "MUM-2025-05-1516-Q002", "sibling_text": "ac characteristics", "sibling_family": "Electrical - Distribution & MSB", "via": "sibling", "answer_title": "AC characteristics and basic AC circuit components", "cross_family": true }, { "answer_id": "REF-CYC-007", "score": 0.39219528436660767, "sibling_score": 0.39219528436660767, "answer_score": null, "sibling_qid": "KOL-2017-01-1273-Q004", "sibling_text": "ac and refer cop comparision why more in ac", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "7. COP and improving refrigeration efficiency", "cross_family": true } ] }, { "qid": "KOC-2026-09-2195-Q008", "text": "After blackout emg gen running. How to take the main generator on load. Explain each step ?", "family": "Electrical - Generator & Alternator", "subtopic": "Emergency DG", "tid": "KOC-2026-09-2195", "tray": "new", "candidates": [ { "answer_id": "EMCY-DG-P03-004", "score": 0.6207286715507507, "sibling_score": 0.6207286715507507, "answer_score": 0.5105603635311127, "sibling_qid": "KOC-2025-07-1559-Q011", "sibling_text": "after blackout u started ur gen how will u connect the load to msb", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Blackout sequence — starting the set and taking load back", "cross_family": false }, { "answer_id": "EMG-DG-P04-001", "score": 0.600281298160553, "sibling_score": 0.600281298160553, "answer_score": 0.4577074289321899, "sibling_qid": "KOL-2021-06-2450-Q003", "sibling_text": "how emergency generator come on load after failure of main power black out", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Emergency generator on-load / load-test procedure", "cross_family": false }, { "answer_id": "EMG-DG-P04-004", "score": 0.5945280194282532, "sibling_score": 0.5945280194282532, "answer_score": null, "sibling_qid": "KOC-2026-05-0028-Q011", "sibling_text": "emergency gen started but didn t came to load automatically what will do some cross", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Safeties, trips, protections & failure to start / come on load", "cross_family": false } ] }, { "qid": "KOC-2026-09-2196-Q002", "text": "Hull damage report initial and final. As per SMS ?", "family": "Surveys - Statutory", "subtopic": "Defects on Board / Class Action", "tid": "KOC-2026-09-2196", "tray": "new", "candidates": [ { "answer_id": "ISM-AUD-P03-003", "score": 0.6385194659233093, "sibling_score": 0.6385194659233093, "answer_score": null, "sibling_qid": "MUM-2026-03-0853-Q005", "sibling_text": "hull damage has taken place how will you report to your company following sms", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "Non-conformity, major non-conformity and incident reporting under SMS", "cross_family": true }, { "answer_id": "HULL-DD-003", "score": 0.5597808957099915, "sibling_score": 0.5597808957099915, "answer_score": null, "sibling_qid": "KOC-2021-05-1755-Q011", "sibling_text": "hull breach and what actions taken to report to company", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "3. Side-shell hole or hull breach at the waterline: emergency action and repair", "cross_family": true }, { "answer_id": "SURV-GEN-001", "score": 0.5530304312705994, "sibling_score": 0.5530304312705994, "answer_score": null, "sibling_qid": "MUM-2026-06-3621-Q013", "sibling_text": "hull survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What statutory surveys are carried out on board?", "cross_family": false } ] }, { "qid": "KOC-2026-09-2197-Q004", "text": "type A and type B bulkhead ?", "family": "SOLAS - Fire Safety", "subtopic": "A-60 / B-Class", "tid": "KOC-2026-09-2197", "tray": "review", "candidates": [ { "answer_id": "A60-BCLASS-001", "score": 0.6782733798027039, "sibling_score": 0.6782733798027039, "answer_score": null, "sibling_qid": "KOC-2023-07-0200-Q004", "sibling_text": "a class and a60 types of bulkhead", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "A-60 / Class ‘A’ fire division — what it is", "cross_family": false }, { "answer_id": "A60-BCLASS-002", "score": 0.6714170575141907, "sibling_score": 0.6714170575141907, "answer_score": null, "sibling_qid": "CHE-2025-08-0015-Q005", "sibling_text": "types of bulk head what is class a and b where class a is used", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "A, B and C class divisions — and where they are used", "cross_family": false }, { "answer_id": "BHD-TYPE-A-002", "score": 0.6221089959144592, "sibling_score": 0.6221089959144592, "answer_score": 0.44491224884986874, "sibling_qid": "MUM-2026-04-0926-Q004", "sibling_text": "types of bulk head what is class a and b where class a is used", "sibling_family": "", "via": "sibling", "answer_title": "A-class and B-class fire bulkheads — A-60, B-15 and where they are found", "cross_family": false } ] }, { "qid": "KOC-2026-09-2197-Q005", "text": "difference between FSI and PSI ?", "family": "Surveys - Statutory", "subtopic": "Flag State", "tid": "KOC-2026-09-2197", "tray": "new", "candidates": [ { "answer_id": "FLAG-ST-003", "score": 0.6471022367477417, "sibling_score": 0.6471022367477417, "answer_score": 0.2647761255502701, "sibling_qid": "KOC-2025-01-0520-Q012", "sibling_text": "fsi and psi", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Flag state vs port state / PSC / PSI vs class vs coastal state", "cross_family": false }, { "answer_id": "PSC-RO-P02-002", "score": 0.5221551656723022, "sibling_score": 0.5221551656723022, "answer_score": null, "sibling_qid": "MUM-2024-12-0226-Q002", "sibling_text": "psc fsi", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "How does PSC work with the flag State, RO, CIC and MoU frameworks?", "cross_family": false }, { "answer_id": "PSC-SURV-P01-004", "score": 0.4395507574081421, "sibling_score": 0.4395507574081421, "answer_score": null, "sibling_qid": "KOL-2026-03-1207-Q004", "sibling_text": "psc and fsc difference", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the difference between flag State, port State and coastal State control?", "cross_family": false } ] }, { "qid": "KOC-2026-09-2197-Q006", "text": "PSC codes ?", "family": "Surveys - Statutory", "subtopic": "PSC / Flag / RO / CIC / MoU", "tid": "KOC-2026-09-2197", "tray": "new", "candidates": [ { "answer_id": "DCG-003", "score": 0.6346321702003479, "sibling_score": 0.6346321702003479, "answer_score": 0.4129480093717575, "sibling_qid": "KOL-2025-04-0931-Q009", "sibling_text": "psc deficiency code", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the PSC deficiency code, which code leads to a detainable deficiency, and can you give an example of a \"clear-ground code\"?", "cross_family": false }, { "answer_id": "PSC-001", "score": 0.6204282641410828, "sibling_score": 0.6204282641410828, "answer_score": 0.3708614677190781, "sibling_qid": "MUM-2025-08-0378-Q007", "sibling_text": "what is psc", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "1. What is PSC, why it is required, and its legal basis and scope", "cross_family": false }, { "answer_id": "PSC-SURV-P01-002", "score": 0.6157991290092468, "sibling_score": 0.6157991290092468, "answer_score": null, "sibling_qid": "KOL-2021-07-0529-Q003", "sibling_text": "cic in psc", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is a Concentrated Inspection Campaign (CIC) under PSC?", "cross_family": false } ] }, { "qid": "KOC-2026-09-2197-Q007", "text": "life raft HRU release procedure ?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Liferaft / HRU", "tid": "KOC-2026-09-2197", "tray": "new", "candidates": [ { "answer_id": "LRHR-B-008", "score": 0.6234541535377502, "sibling_score": 0.6234541535377502, "answer_score": 0.44277159571647645, "sibling_qid": "KOC-2025-02-0540-Q009", "sibling_text": "life raft launching procedure", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Take me through launching and inflating the liferaft manually.", "cross_family": false }, { "answer_id": "LRHR-B-009", "score": 0.6101081371307373, "sibling_score": 0.6101081371307373, "answer_score": null, "sibling_qid": "KOL-2019-12-0358-Q001", "sibling_text": "hru in life raft", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What is the HRU, where is it fitted, and what is its function?", "cross_family": false }, { "answer_id": "LRHR-B-002", "score": 0.6050266027450562, "sibling_score": 0.6050266027450562, "answer_score": null, "sibling_qid": "KOC-2025-01-0519-Q010", "sibling_text": "type of liferaft onboard securing arrangements parts name hru replacement time", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "How is the liferaft stowed and secured on deck? Draw the arrangement.", "cross_family": false } ] }, { "qid": "KOC-2026-09-2198-Q003", "text": "Types of bulkhead and functions ?", "family": "SOLAS - Fire Safety", "subtopic": "A-60 / B-Class", "tid": "KOC-2026-09-2198", "tray": "review", "candidates": [ { "answer_id": "A60-BCLASS-001", "score": 0.670989453792572, "sibling_score": 0.670989453792572, "answer_score": null, "sibling_qid": "KOL-2023-07-0753-Q002", "sibling_text": "fire bulkhead a type", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "A-60 / Class ‘A’ fire division — what it is", "cross_family": false }, { "answer_id": "BHD-TYPE-A-001", "score": 0.6273876428604126, "sibling_score": 0.6273876428604126, "answer_score": 0.5426297307014465, "sibling_qid": "KOL-2025-07-1000-Q005", "sibling_text": "bulkhead types", "sibling_family": "", "via": "sibling", "answer_title": "Bulkheads — types, classification, functions and purpose", "cross_family": false }, { "answer_id": "A60-BCLASS-002", "score": 0.6157111525535583, "sibling_score": 0.6157111525535583, "answer_score": null, "sibling_qid": "CHE-2025-08-0015-Q005", "sibling_text": "types of bulk head what is class a and b where class a is used", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "A, B and C class divisions — and where they are used", "cross_family": false } ] }, { "qid": "KOC-2026-09-2198-Q006", "text": "EEDI ? INTERNAL QUES", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "EEDI", "tid": "KOC-2026-09-2198", "tray": "review", "candidates": [ { "answer_id": "EECS-008", "score": 0.6569172143936157, "sibling_score": 0.6569172143936157, "answer_score": 0.32737173736095426, "sibling_qid": "CHE-2025-08-0050-Q006", "sibling_text": "eedi and eeoi internal deciding questions", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "08. Differentiate EEDI and EEOI — formula for each", "cross_family": false }, { "answer_id": "EEDI-B-001", "score": 0.6204480528831482, "sibling_score": 0.6204480528831482, "answer_score": null, "sibling_qid": "KOC-2024-10-0423-Q012", "sibling_text": "eedi eeoi formula internal paul no question", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "EEDI — formula, unit and the calculation terms", "cross_family": false }, { "answer_id": "EECS-009", "score": 0.618615984916687, "sibling_score": 0.618615984916687, "answer_score": null, "sibling_qid": "KOL-2023-04-2646-Q008", "sibling_text": "what is eedi", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "09. What is EEDI? Attained and required EEDI and the formula", "cross_family": false } ] }, { "qid": "KOC-2026-09-2198-Q009", "text": "How will u fight a fire on purifier ?", "family": "SOLAS - Fire Safety", "subtopic": "Fixed Firefighting", "tid": "KOC-2026-09-2198", "tray": "new", "candidates": [ { "answer_id": "FIRE-P04-01", "score": 0.6398736238479614, "sibling_score": 0.6398736238479614, "answer_score": 0.4496551543474197, "sibling_qid": "KOC-2021-07-0018-Q006", "sibling_text": "when u take rounds u saw a small fire in boller burner what is ur action answer he need to hear that there is a sand box near the boiler use that first then use portable fire extinguisher", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Small boiler/burner fire — immediate action", "cross_family": false }, { "answer_id": "CO2-SYS-003", "score": 0.6245162487030029, "sibling_score": 0.6245162487030029, "answer_score": null, "sibling_qid": "KOL-2021-10-0566-Q004", "sibling_text": "fire in some area u doing control in successful thn wht is process fire fighting some other questions asking i will updated", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 system — use decisions, suitability and post-release checks", "cross_family": false }, { "answer_id": "CONT-FIRE-002", "score": 0.5924962759017944, "sibling_score": 0.5924962759017944, "answer_score": 0.4321065306663513, "sibling_qid": "MUM-2026-05-3160-Q001S2", "sibling_text": "how to fight that fire", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "How do you fight a fire in containers on deck, or where the affected container is not directly accessible?", "cross_family": false } ] }, { "qid": "KOC-2026-09-2199-Q003", "text": "Sounding pipe on deck and engine room difference ?", "family": "Tank Calibration & Sounding", "subtopic": "Sounding Pipe Arrangements", "tid": "KOC-2026-09-2199", "tray": "new", "candidates": [ { "answer_id": "CSM-214-004", "score": 0.5376442074775696, "sibling_score": 0.5376442074775696, "answer_score": null, "sibling_qid": "KOC-2025-04-2062-Q006", "sibling_text": "surveys in engine room", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "CSM vs Special Survey vs CSH, other survey systems, and renewal", "cross_family": true }, { "answer_id": "NOISE-CODE-002", "score": 0.5197439193725586, "sibling_score": 0.5197439193725586, "answer_score": null, "sibling_qid": "KOC-2025-10-0690-Q011", "sibling_text": "ship has to comply with noise code right how to know how much noise is there is second deck i said in sea trial they check this and in the report there will be measurements from all parts of the ship", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "How do you verify the ship complies, and find the onboard noise levels for different locations?", "cross_family": true }, { "answer_id": "GAS-DET-002", "score": 0.519721508026123, "sibling_score": 0.519721508026123, "answer_score": null, "sibling_qid": "KOL-2026-09-4311-Q004", "sibling_text": "in engine room how about pipes for gas system what is inside 1st pipe and what is inside 2nd pipe above it where gas flows what if gas leaks", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Detecting a leak: inter-barrier / secondary-barrier spaces and shipboard safeties", "cross_family": true } ] }, { "qid": "KOC-2026-09-2199-Q006", "text": "Purifier room fire. What is your action as 2E ?", "family": "Cargo Ops - Tankers", "subtopic": "Pump Room Safety", "tid": "KOC-2026-09-2199", "tray": "new", "candidates": [ { "answer_id": "UPT-FIRE-001", "score": 0.5516679286956787, "sibling_score": 0.5516679286956787, "answer_score": 0.3655691623687744, "sibling_qid": "KOL-2019-11-3288-Q002", "sibling_text": "actions as 2 e on boiler uptake fire", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "The 4/E reports an uptake fire — your actions as 2/E", "cross_family": true }, { "answer_id": "FIRE-P04-01", "score": 0.4982979893684387, "sibling_score": 0.4982979893684387, "answer_score": null, "sibling_qid": "KOC-2021-07-0018-Q006", "sibling_text": "when u take rounds u saw a small fire in boller burner what is ur action answer he need to hear that there is a sand box near the boiler use that first then use portable fire extinguisher", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Small boiler/burner fire — immediate action", "cross_family": true }, { "answer_id": "FIRE-P04-05", "score": 0.4969539940357208, "sibling_score": 0.4969539940357208, "answer_score": null, "sibling_qid": "MUM-2023-03-0094-Q004", "sibling_text": "fire in dd actions as 2e if no ce", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fire in dry dock / alongside repair — 2/E stepwise actions", "cross_family": true } ] }, { "qid": "KOC-2026-09-2200-Q001", "text": "ME - C manuvering explain, what are the safeties and interlocks in ME engine ?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Interlocks", "tid": "KOC-2026-09-2200", "tray": "new", "candidates": [ { "answer_id": "ILK-318-005", "score": 0.6442391872406006, "sibling_score": 0.6442391872406006, "answer_score": null, "sibling_qid": "KOC-2024-05-2048-Q010", "sibling_text": "safeties in me engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "5. Main-engine trips and shutdowns linked with interlocks", "cross_family": false }, { "answer_id": "ILK-318-001", "score": 0.6357100605964661, "sibling_score": 0.6357100605964661, "answer_score": 0.5091122865676879, "sibling_qid": "KOC-2025-03-1034-Q003", "sibling_text": "me engine interlocks", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "1. What are the main engine interlocks?", "cross_family": false }, { "answer_id": "ILK-318-003", "score": 0.6215386986732483, "sibling_score": 0.6215386986732483, "answer_score": null, "sibling_qid": "KOC-2026-05-0040-Q004", "sibling_text": "interlocks in mc engine starting", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "3. Starting / manoeuvring interlocks, and why slow turning is provided", "cross_family": false } ] }, { "qid": "KOC-2026-09-2200-Q002", "text": "Tacho sensors , Marker sensor , Quadrature sensor purpose ?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Angle Encoder", "tid": "KOC-2026-09-2200", "tray": "review", "candidates": [ { "answer_id": "ANG-ENC-002", "score": 0.6568846106529236, "sibling_score": 0.6568846106529236, "answer_score": null, "sibling_qid": "KOC-2024-05-2048-Q009", "sibling_text": "me c manoeuvring explain function of marker and quadrature sensors", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Arrangement, location, types and main components", "cross_family": false }, { "answer_id": "ANG-ENC-003", "score": 0.6484673023223877, "sibling_score": 0.6484673023223877, "answer_score": 0.4675924718379974, "sibling_qid": "KOC-2025-03-1034-Q002", "sibling_text": "tacho encoders", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Working principle: sensing crank angle, speed and direction", "cross_family": false }, { "answer_id": "ANG-ENC-004", "score": 0.6196308135986328, "sibling_score": 0.6196308135986328, "answer_score": null, "sibling_qid": "MUM-2026-01-1238-Q003", "sibling_text": "angle encoder purpose configuration calibration etc", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Checks, testing, calibration and maintenance", "cross_family": false } ] }, { "qid": "KOC-2026-09-2200-Q005", "text": "One of the unit of your engine is after burning. Reasons?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Scavenging / Scavenge Fire", "tid": "KOC-2026-09-2200", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-006", "score": 0.7275503277778625, "sibling_score": 0.7275503277778625, "answer_score": 0.5201876282691955, "sibling_qid": "KOC-2025-01-1022-Q007", "sibling_text": "causes of after burning in main engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Afterburning — causes, indications, remedies", "cross_family": false }, { "answer_id": "INDCARD-C-001", "score": 0.6825958490371704, "sibling_score": 0.6825958490371704, "answer_score": null, "sibling_qid": "KOC-2024-10-2056-Q006", "sibling_text": "reasons for after burning", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Early/late injection, ignition delay & after-burning on the indicator card", "cross_family": false }, { "answer_id": "SCAV-323-P01-002", "score": 0.6542373299598694, "sibling_score": 0.6542373299598694, "answer_score": null, "sibling_qid": "KOL-2023-02-1726-Q005", "sibling_text": "scavenge fire in one unit your action on running engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Fire in one unit, engine running and cannot be stopped (Malacca Strait)", "cross_family": false } ] }, { "qid": "KOC-2026-09-2200-Q009", "text": "Draw and explain 2S Piston, parts - material ?", "family": "2-Stroke - Components (Other)", "subtopic": "Piston (Crown/Skirt/Inspection)", "tid": "KOC-2026-09-2200", "tray": "review", "candidates": [ { "answer_id": "PIST-CSI-A-003", "score": 0.7252436876296997, "sibling_score": 0.7252436876296997, "answer_score": 0.44531619250774385, "sibling_qid": "KOC-2026-02-2092-Q004", "sibling_text": "2s piston diagram and material", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston materials: crown, skirt, rod, rings and coatings", "cross_family": false }, { "answer_id": "PST-CSI-BF-001", "score": 0.6791560649871826, "sibling_score": 0.6791560649871826, "answer_score": 0.4672327578067779, "sibling_qid": "KOC-2022-09-0921-Q007", "sibling_text": "piston diagram and materials", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Cross-section of a two-stroke piston — parts, bolting, sealing, materials", "cross_family": false }, { "answer_id": "PIST-CSI-A-002", "score": 0.6632001399993896, "sibling_score": 0.6632001399993896, "answer_score": 0.473427540063858, "sibling_qid": "KOL-2026-01-2034-Q003", "sibling_text": "2s piston drawing", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "2-stroke piston: parts, cooling arrangement and operating stresses", "cross_family": false } ] }, { "qid": "KOC-2026-09-2200-Q013", "text": "How to ensure your Air cooler of Engine is perform Well? Internal ques", "family": "Air Compressor", "subtopic": "Inter-cooler / After-cooler", "tid": "KOC-2026-09-2200", "tray": "review", "candidates": [ { "answer_id": "ACJCW-003", "score": 0.6951113939285278, "sibling_score": 0.6951113939285278, "answer_score": null, "sibling_qid": "KOC-2026-05-2127-Q011", "sibling_text": "air cooler performance check how what all spares required before air cooler maintenance", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Cleaning and overhauling an air cooler - air side and water side", "cross_family": true }, { "answer_id": "ACJCW-002", "score": 0.6887927055358887, "sibling_score": 0.6887927055358887, "answer_score": 0.5622539043426513, "sibling_qid": "KOL-2023-02-1726-Q003", "sibling_text": "main engine air cooler outlet temperature how maintained", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Maintaining air-cooler outlet temperature and which valve to throttle", "cross_family": true }, { "answer_id": "ICAC-299-001", "score": 0.661005973815918, "sibling_score": 0.661005973815918, "answer_score": null, "sibling_qid": "KOL-2017-03-1278-Q006", "sibling_text": "what is use of intercooler and aftercooler", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Purpose and function of the intercooler and aftercooler", "cross_family": false } ] }, { "qid": "KOC-2026-09-2200-Q014", "text": "What will be the pressure inside the cylinder when cylinder oil is injecting through the quills? internal ques", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Inverter / VFD", "tid": "KOC-2026-09-2200", "tray": "new", "candidates": [ { "answer_id": "CYL-LUB-A-003", "score": 0.5872427225112915, "sibling_score": 0.5872427225112915, "answer_score": null, "sibling_qid": "KOL-2018-08-1412-Q003", "sibling_text": "cylinder lubrication in me how oil is supplied to individual piston pump of quills", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Lubricator quills — arrangement and oil distribution on the liner", "cross_family": true }, { "answer_id": "CR-248-002", "score": 0.5695919990539551, "sibling_score": 0.5695919990539551, "answer_score": null, "sibling_qid": "KOL-2021-12-1651-Q004", "sibling_text": "2 how fuel is injected in the cylinder in me full process various operating pressure", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How fuel is injected in electronically controlled ME / RT-flex engines — how rail or hydraulic pressure produces injection", "cross_family": true }, { "answer_id": "EXHV-P01-002", "score": 0.5651691555976868, "sibling_score": 0.5651691555976868, "answer_score": null, "sibling_qid": "CHE-2021-07-0183-Q006", "sibling_text": "spring air pressure hw much what happens with air when oil pressure is applied to open exhaust valve it should restrict it s opening hw it s prevented asked by internal", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Air spring and soft closing", "cross_family": true } ] }, { "qid": "KOC-2026-09-2201-Q001", "text": "180 deg out of synchronisation ? what will happen ?", "family": "Electrical - Generator & Alternator", "subtopic": "Synchronization", "tid": "KOC-2026-09-2201", "tray": "new", "candidates": [ { "answer_id": "SYNC-D-001", "score": 0.5182866454124451, "sibling_score": 0.5182866454124451, "answer_score": 0.42255597114562987, "sibling_qid": "KOC-2024-07-1373-Q012", "sibling_text": "generator synchronisation done wrong what happens", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Closing the breaker out of phase — wrong-synchronizing consequences", "cross_family": false }, { "answer_id": "SYNC-C-002", "score": 0.5097008943557739, "sibling_score": 0.5097008943557739, "answer_score": null, "sibling_qid": "MUM-2026-06-3425-Q002", "sibling_text": "what if synchroscope not working", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Synchronising without a synchroscope — lamp, voltmeter and alternative methods", "cross_family": false }, { "answer_id": "SYN-ASY-B-002", "score": 0.4988332688808441, "sibling_score": 0.4988332688808441, "answer_score": null, "sibling_qid": "KOL-2025-12-2932-Q002", "sibling_text": "synchronous slip and what happens if 0", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Synchronous speed, slip relation, and speed control", "cross_family": false } ] }, { "qid": "KOC-2026-09-2201-Q005", "text": "Types of motor enclosure and explain about Open drip proof type ?", "family": "Electrical - Motors & Starters", "subtopic": "IP Rating / Enclosure", "tid": "KOC-2026-09-2201", "tray": "review", "candidates": [ { "answer_id": "IP-ENCL-006", "score": 0.7586906552314758, "sibling_score": 0.7586906552314758, "answer_score": 0.5070551782846451, "sibling_qid": "KOC-2026-02-0822-Q016", "sibling_text": "types of motor enclosures what are the requirements for a drip proof enclosure", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Drip-proof vs deck-proof (deck-watertight) enclosures", "cross_family": false }, { "answer_id": "IP-ENCL-003", "score": 0.7021151185035706, "sibling_score": 0.7021151185035706, "answer_score": 0.5793383955955506, "sibling_qid": "KOC-2022-11-1210-Q006", "sibling_text": "motor enclosure types", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor enclosure and where used on ships", "cross_family": false }, { "answer_id": "IP-ENCL-001", "score": 0.470102059841156, "sibling_score": null, "answer_score": 0.470102059841156, "sibling_qid": "", "sibling_text": "ip rating of motors what the numbers mean ip ingress protection code per iec 60529 enclosures iec 60034 5 for rotating machines motors first numeral 0 6 solids dust 6 dust tight no ingress 5 dust protected limited no harmful deposit", "sibling_family": "", "via": "answer_title", "answer_title": "IP rating of motors — what the numbers mean", "cross_family": false } ] }, { "qid": "KOC-2026-09-2205-Q001", "text": "ME - C manuvering explain, what are the safeties and interlocks in ME engine ?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Interlocks", "tid": "KOC-2026-09-2205", "tray": "new", "candidates": [ { "answer_id": "ILK-318-005", "score": 0.6442391276359558, "sibling_score": 0.6442391276359558, "answer_score": null, "sibling_qid": "KOC-2024-05-2048-Q010", "sibling_text": "safeties in me engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "5. Main-engine trips and shutdowns linked with interlocks", "cross_family": false }, { "answer_id": "ILK-318-001", "score": 0.6357100009918213, "sibling_score": 0.6357100009918213, "answer_score": 0.5091122359037399, "sibling_qid": "KOC-2023-01-0977-Q003", "sibling_text": "me engine interlocks", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "1. What are the main engine interlocks?", "cross_family": false }, { "answer_id": "ILK-318-003", "score": 0.6215386986732483, "sibling_score": 0.6215386986732483, "answer_score": null, "sibling_qid": "KOC-2026-05-0040-Q004", "sibling_text": "interlocks in mc engine starting", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "3. Starting / manoeuvring interlocks, and why slow turning is provided", "cross_family": false } ] }, { "qid": "KOC-2026-09-2205-Q002", "text": "Tacho sensors , Marker sensor , Quadrature sensor purpose ?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Angle Encoder", "tid": "KOC-2026-09-2205", "tray": "review", "candidates": [ { "answer_id": "ANG-ENC-002", "score": 0.6568846106529236, "sibling_score": 0.6568846106529236, "answer_score": null, "sibling_qid": "KOC-2024-05-2048-Q009", "sibling_text": "me c manoeuvring explain function of marker and quadrature sensors", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Arrangement, location, types and main components", "cross_family": false }, { "answer_id": "ANG-ENC-003", "score": 0.6484672427177429, "sibling_score": 0.6484672427177429, "answer_score": 0.4675924718379974, "sibling_qid": "KOC-2025-03-1034-Q002", "sibling_text": "tacho encoders", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Working principle: sensing crank angle, speed and direction", "cross_family": false }, { "answer_id": "ANG-ENC-004", "score": 0.6196308135986328, "sibling_score": 0.6196308135986328, "answer_score": null, "sibling_qid": "MUM-2026-01-1238-Q003", "sibling_text": "angle encoder purpose configuration calibration etc", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Checks, testing, calibration and maintenance", "cross_family": false } ] }, { "qid": "KOC-2026-09-2205-Q006", "text": "One of the unit of your engine is after burning. Reasons?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Scavenging / Scavenge Fire", "tid": "KOC-2026-09-2205", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-006", "score": 0.7275503277778625, "sibling_score": 0.7275503277778625, "answer_score": 0.5201876282691955, "sibling_qid": "KOC-2025-01-1022-Q007", "sibling_text": "causes of after burning in main engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Afterburning — causes, indications, remedies", "cross_family": false }, { "answer_id": "INDCARD-C-001", "score": 0.6825957894325256, "sibling_score": 0.6825957894325256, "answer_score": null, "sibling_qid": "KOC-2024-10-2056-Q006", "sibling_text": "reasons for after burning", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Early/late injection, ignition delay & after-burning on the indicator card", "cross_family": false }, { "answer_id": "SCAV-323-P01-002", "score": 0.6542374491691589, "sibling_score": 0.6542374491691589, "answer_score": null, "sibling_qid": "KOL-2023-02-1726-Q005", "sibling_text": "scavenge fire in one unit your action on running engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Fire in one unit, engine running and cannot be stopped (Malacca Strait)", "cross_family": false } ] }, { "qid": "KOC-2026-09-2205-Q013", "text": "swell and shrinkage -how PID controller remove swell and shrinkage ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "PID Controller", "tid": "KOC-2026-09-2205", "tray": "review", "candidates": [ { "answer_id": "PID-CTRL-001", "score": 0.6588318347930908, "sibling_score": 0.6588318347930908, "answer_score": null, "sibling_qid": "CHE-2026-05-0526-Q001", "sibling_text": "pid controller working", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What a PID controller is and how it works", "cross_family": false }, { "answer_id": "PID-CTRL-002", "score": 0.6238358616828918, "sibling_score": 0.6238358616828918, "answer_score": 0.47444588541984556, "sibling_qid": "KOL-2017-07-3961-Q003", "sibling_text": "pid controler d function", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Proportional, integral and derivative actions", "cross_family": false }, { "answer_id": "PID-CTRL-004", "score": 0.5343563079833984, "sibling_score": null, "answer_score": 0.5343563079833984, "sibling_qid": "", "sibling_text": "pid for boiler feed water and water level control shrink and swell a load or pressure change alters bubble volume so the level momentarily reads opposite to the true water mass swell false high on a load increase shrink false low on a load decrease single element level only simple but fooled by shrink swell and slow on load change", "sibling_family": "", "via": "answer_title", "answer_title": "PID for boiler feed-water and water-level control", "cross_family": false } ] }, { "qid": "KOC-2026-09-2205-Q015", "text": "gusset stay ?", "family": "Boilers - Construction & Components", "subtopic": "Ogee Ring", "tid": "KOC-2026-09-2205", "tray": "new", "candidates": [ { "answer_id": "OGEE-RING-001", "score": 0.5376707911491394, "sibling_score": 0.5376707911491394, "answer_score": null, "sibling_qid": "KOC-2022-01-0954-Q007", "sibling_text": "gusset stay ogee ring", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "The ogee ring: what it is, where it sits, its purpose, and how it's formed and connected", "cross_family": false }, { "answer_id": "FWFB-P02-001", "score": 0.4299917221069336, "sibling_score": 0.4299917221069336, "answer_score": 0.29617259949445723, "sibling_qid": "MUM-2022-10-0061-Q005", "sibling_text": "gusset plate where used", "sibling_family": "", "via": "sibling", "answer_title": "Brackets, knees and gusset plates", "cross_family": false }, { "answer_id": "HATCH-COAM-005", "score": 0.383828341960907, "sibling_score": 0.383828341960907, "answer_score": 0.30751433223485947, "sibling_qid": "KOC-2026-02-0799-Q006", "sibling_text": "hatch coming coming stay", "sibling_family": "", "via": "sibling", "answer_title": "What supports, stays or strengthening members are provided for hatch coamings and large hatch openings?", "cross_family": false } ] }, { "qid": "KOC-2026-09-2205-Q018", "text": "safety valve diagram top part ?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2026-09-2205", "tray": "review", "candidates": [ { "answer_id": "MR-DS-PV-B-006", "score": 0.7503376603126526, "sibling_score": 0.7503376603126526, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q005", "sibling_text": "full bore safety valve diagram", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "6. Deck isolating valve, deck relief/safety devices, and cargo-tank pressure", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.7485507130622864, "sibling_score": 0.7485507130622864, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q012", "sibling_text": "draw top part of improved high lift safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.677402913570404, "sibling_score": 0.677402913570404, "answer_score": null, "sibling_qid": "KOC-2026-05-2142-Q008", "sibling_text": "safety valve setting in front of surveyor", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false } ] }, { "qid": "KOC-2026-09-2206-Q012", "text": "EExI, EEDI explain full ?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "EEDI", "tid": "KOC-2026-09-2206", "tray": "new", "candidates": [ { "answer_id": "EEDI-A-001", "score": 0.6331536173820496, "sibling_score": 0.6331536173820496, "answer_score": null, "sibling_qid": "KOL-2018-11-0233-Q007", "sibling_text": "eedi explain in detail", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What EEDI is, and why it is required", "cross_family": false }, { "answer_id": "SEEMP-123-B-003", "score": 0.6330714821815491, "sibling_score": 0.6330714821815491, "answer_score": null, "sibling_qid": "KOL-2026-02-1188-Q004", "sibling_text": "seemp full explain eeoi explain", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Where SEEMP fits in MARPOL Annex VI, and its certification", "cross_family": false }, { "answer_id": "EEDI-C-001", "score": 0.6251222491264343, "sibling_score": 0.6251222491264343, "answer_score": 0.3731660947203636, "sibling_qid": "MUM-2026-03-0862-Q005", "sibling_text": "eedi and eexi full", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "EEDI versus EEXI — what is the difference?", "cross_family": false } ] }, { "qid": "KOC-2026-09-2207-Q002", "text": "MLC title all and explain title 2 ?", "family": "MLC", "subtopic": "MLC / DMLC / Work-Rest", "tid": "KOC-2026-09-2207", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.6394025683403015, "sibling_score": 0.6394025683403015, "answer_score": 0.24566525369882583, "sibling_qid": "KOC-2026-05-2135-Q011", "sibling_text": "mlc titles explain title 1 explain dmlc part 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "MLC-WRH-B-006", "score": 0.42663639783859253, "sibling_score": 0.42663639783859253, "answer_score": null, "sibling_qid": "MUM-2026-07-3680-Q005", "sibling_text": "what is mlc certificate under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false }, { "answer_id": "ISM-2E-A-001", "score": 0.42477738857269287, "sibling_score": 0.42477738857269287, "answer_score": null, "sibling_qid": "CHE-2026-04-0163-Q018", "sibling_text": "role of 2e in mlc and ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Roles, duties and responsibilities of a Second Engineer under ISM/SMS", "cross_family": true } ] }, { "qid": "KOC-2026-09-2207-Q013", "text": "Provision crane trip ?", "family": "Electrical - Motors & Starters", "subtopic": "Windlass / Crane Motor", "tid": "KOC-2026-09-2207", "tray": "new", "candidates": [ { "answer_id": "WCM-P02-001", "score": 0.6214024424552917, "sibling_score": 0.6214024424552917, "answer_score": 0.3787465512752533, "sibling_qid": "KOC-2024-01-1318-Q006", "sibling_text": "provision crane safeties", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Safeties and trips on ship's cranes (deck, cargo, provision, engine-room)", "cross_family": false }, { "answer_id": "CRANE-ER-006", "score": 0.6045653820037842, "sibling_score": 0.6045653820037842, "answer_score": null, "sibling_qid": "KOC-2026-09-2206-Q015", "sibling_text": "provision crane slipping", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Likely reasons for a provision crane slipping", "cross_family": true }, { "answer_id": "CRANE-EMBRK-003", "score": 0.5782289505004883, "sibling_score": 0.5782289505004883, "answer_score": null, "sibling_qid": "KOC-2024-08-1382-Q007", "sibling_text": "provision crane wire slipping", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Electrical causes of provision / deck crane brake slipping (single-phasing and brake-circuit faults)", "cross_family": true } ] }, { "qid": "KOC-2026-09-2207-Q014", "text": "Gangway motor ur starting and it’s gets stop trip what is the reason ( I said all trips in akg notes he did not accept then last I said single phase then he said right) ?", "family": "Electrical - Motors & Starters", "subtopic": "Induction Motor (General / Working)", "tid": "KOC-2026-09-2207", "tray": "review", "candidates": [ { "answer_id": "MNS-009", "score": 0.7543205618858337, "sibling_score": 0.7543205618858337, "answer_score": 0.5664898157119751, "sibling_qid": "KOC-2024-05-1351-Q007", "sibling_text": "when u start gangway motor it will start and trips if start again it will trip what are the electrical reasons", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Motor trips on starting, or immediately after — electrical reasons and your checks", "cross_family": false }, { "answer_id": "SPH-A-004", "score": 0.6987581849098206, "sibling_score": 0.6987581849098206, "answer_score": 0.549766355752945, "sibling_qid": "KOC-2025-08-1573-Q007", "sibling_text": "single phase of motor reason and safety", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What are the causes of single phasing, and how does it occur?", "cross_family": false }, { "answer_id": "SPHS-B-016", "score": 0.6968963146209717, "sibling_score": 0.6968963146209717, "answer_score": null, "sibling_qid": "KOL-2019-03-2276-Q002", "sibling_text": "operational arrangements to avoid single phasing before starting motor not inbuilt protection", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What operational arrangements avoid single phasing before starting a motor — not inbuilt protection?", "cross_family": false } ] }, { "qid": "KOC-2026-09-2208-Q001", "text": "Other paper status Type of ship(bulk)", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "KOC-2026-09-2208", "tray": "review", "candidates": [ { "answer_id": "SOLAS12-BC-A-001", "score": 0.6869156956672668, "sibling_score": 0.6869156956672668, "answer_score": 0.4457694828510284, "sibling_qid": "KOC-2026-02-0799-Q003", "sibling_text": "ship done bulk carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "SOLAS definition and scope of a bulk carrier", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.6447833180427551, "sibling_score": 0.6447833180427551, "answer_score": null, "sibling_qid": "KOC-2026-08-2106-Q001", "sibling_text": "status of written oral company type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "SOLAS12-BC-A-002", "score": 0.6191983819007874, "sibling_score": 0.6191983819007874, "answer_score": null, "sibling_qid": "KOL-2025-09-1056-Q002", "sibling_text": "type of ship latest amendments added to bulk carriers explain", "sibling_family": "", "via": "sibling", "answer_title": "Why Chapter XII was introduced; old vs new bulk carriers and latest amendments", "cross_family": false } ] }, { "qid": "KOC-2026-09-2209-Q001", "text": "Types of Scrubber and working principle ?", "family": "Boilers - Operations & Firing", "subtopic": "DP Transmitter", "tid": "KOC-2026-09-2209", "tray": "new", "candidates": [ { "answer_id": "EGCS-393-002", "score": 0.6201267242431641, "sibling_score": 0.6201267242431641, "answer_score": 0.4554591655731201, "sibling_qid": "KOC-2023-08-0214-Q004", "sibling_text": "explain working of scrubber", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "EGCS types, components and working — open, closed and hybrid loop", "cross_family": true }, { "answer_id": "SOX-LIMIT-003", "score": 0.572381317615509, "sibling_score": 0.572381317615509, "answer_score": 0.4902327716350555, "sibling_qid": "KOC-2024-11-0456-Q004", "sibling_text": "sulpur requirement scrubber working", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Controlling SOx onboard — compliant fuel, scrubbers, alternatives", "cross_family": true }, { "answer_id": "AV6-P03-04", "score": 0.565284252166748, "sibling_score": 0.565284252166748, "answer_score": null, "sibling_qid": "MUM-2025-08-1157-Q001", "sibling_text": "scr working nh3 slip hp scr vs lp scr", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "HP SCR versus LP SCR — pre-turbine and post-turbine arrangements", "cross_family": true } ] }, { "qid": "KOC-2026-09-2209-Q009", "text": "How to find exhaust valve faulty ?", "family": "2-Stroke - Exhaust, Valve & Starting Air", "subtopic": "Exhaust Valve", "tid": "KOC-2026-09-2209", "tray": "review", "candidates": [ { "answer_id": "EXV-P02-001", "score": 0.7531072497367859, "sibling_score": 0.7531072497367859, "answer_score": null, "sibling_qid": "KOL-2026-04-3944-Q007", "sibling_text": "test on overhauled exhaust valve wants to hear give air supply one time and check for dropping of valve", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve overhaul & dismantling — procedure and precautions", "cross_family": false }, { "answer_id": "EXHV-297-003", "score": 0.7406266927719116, "sibling_score": 0.7406266927719116, "answer_score": 0.5890701293945312, "sibling_qid": "MUM-2025-01-2785-Q009", "sibling_text": "what will u inspect if engine exhaust valve is broken", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Leaking or broken exhaust valve — detect, assess and act in operation / manoeuvring", "cross_family": false }, { "answer_id": "EXHV-080-BF37-005", "score": 0.7351669669151306, "sibling_score": 0.7351669669151306, "answer_score": 0.5755595237016677, "sibling_qid": "MUM-2024-03-1079-Q008", "sibling_text": "exhaust valve leaking indication while running", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "What are the reasons for exhaust valve leakage or knocking, and the indication while running?", "cross_family": false } ] }, { "qid": "KOC-2026-09-2209-Q010", "text": "AE mist box fuming, Reasons ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "OMD / Oil Mist Detector", "tid": "KOC-2026-09-2209", "tray": "new", "candidates": [ { "answer_id": "AE-HOT-BLOW-001", "score": 0.5557589530944824, "sibling_score": 0.5557589530944824, "answer_score": null, "sibling_qid": "MUM-2022-12-1036-Q005", "sibling_text": "ae giving dark smoke reasons", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE / DG giving black or dark smoke — causes and corrective action", "cross_family": true }, { "answer_id": "AE-HOT-BLOW-002", "score": 0.5336787700653076, "sibling_score": 0.5336787700653076, "answer_score": 0.40145904719829556, "sibling_qid": "MUM-2025-05-2295-Q006", "sibling_text": "on deck you smell exhaust gas from the vent heads what will be your action and reasons for smell told exhaust from ae crankcase due to blowpast leading to mist box", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "How you know blow-past is occurring in an auxiliary engine — indications and effects", "cross_family": true }, { "answer_id": "INCIN-005", "score": 0.5182417631149292, "sibling_score": 0.5182417631149292, "answer_score": null, "sibling_qid": "MUM-2026-05-3143-Q003", "sibling_text": "mist box what are the connection in mist box", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Components, blowers and the ‘mist box’ query", "cross_family": true } ] }, { "qid": "KOC-2026-09-2210-Q001", "text": "Engine type, type of ship and What all problems u had on board ?", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "KOC-2026-09-2210", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P01-001", "score": 0.6897872686386108, "sibling_score": 0.6897872686386108, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q001", "sibling_text": "type of ship sailed and engines details", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.6744778156280518, "sibling_score": 0.6744778156280518, "answer_score": null, "sibling_qid": "CHE-2026-03-0253-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "COS343-004", "score": 0.44114619493484497, "sibling_score": null, "answer_score": 0.44114619493484497, "sibling_qid": "", "sibling_text": "when and how will you cut off a fuel pump while at sea cut a unit out at sea to keep making way while removing a faulty cylinder from firing better than stopping the m e in a seaway or traffic when leaking hp fuel pipe faulty injector fuel pump defect suspected scavenge fire on that unit exhaust valve fault heavy knocking that unit overheating", "sibling_family": "", "via": "answer_title", "answer_title": "When — and how — will you cut off a fuel pump while at sea?", "cross_family": false } ] }, { "qid": "KOC-2026-09-2210-Q002", "text": "Between the condenser and Evaporator how throttling is happening ?( Explained About working of TEV and sensing bulb he didn't accept)", "family": "Refrigeration & AC", "subtopic": "TEV / TXV", "tid": "KOC-2026-09-2210", "tray": "new", "candidates": [ { "answer_id": "TEV-TXV-006", "score": 0.6158179640769958, "sibling_score": 0.6158179640769958, "answer_score": 0.546106594800949, "sibling_qid": "CHE-2026-05-0597-Q016", "sibling_text": "what is sensing bulb thermostat", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "TEV sensing bulb — function, fitting and bulb faults", "cross_family": false }, { "answer_id": "TEV-TXV-005", "score": 0.6075161099433899, "sibling_score": 0.6075161099433899, "answer_score": null, "sibling_qid": "KOC-2024-10-1009-Q008", "sibling_text": "in refrigerator throttling valve what happens", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Throttling process and superheat control across the TEV", "cross_family": false }, { "answer_id": "REF-CYC-008", "score": 0.5969097018241882, "sibling_score": 0.5969097018241882, "answer_score": null, "sibling_qid": "KOL-2017-03-1280-Q003", "sibling_text": "secondary refrigerant control of temp through this arrangements", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "8. Secondary refrigeration systems, arrangements and advantages", "cross_family": false } ] }, { "qid": "KOC-2026-09-2210-Q003", "text": "What is Flash off ?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Flash/Fire Point", "tid": "KOC-2026-09-2210", "tray": "new", "candidates": [ { "answer_id": "RES-MAG-004", "score": 0.5041629076004028, "sibling_score": 0.5041629076004028, "answer_score": null, "sibling_qid": "MUM-2022-11-1369-Q010", "sibling_text": "explain flashing procedure", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Field flashing — the procedure, where the battery connects, which terminal, and the precautions", "cross_family": true }, { "answer_id": "FLPT-579-001", "score": 0.47119855880737305, "sibling_score": 0.47119855880737305, "answer_score": 0.274716392159462, "sibling_qid": "MUM-2025-11-1216-Q008", "sibling_text": "flash pt", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Flash point and fire point — what they are", "cross_family": false }, { "answer_id": "BDN-001-002", "score": 0.4246331453323364, "sibling_score": 0.4246331453323364, "answer_score": null, "sibling_qid": "MUM-2026-06-3472-Q007", "sibling_text": "flash point", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Latest amendment — the flashpoint entry", "cross_family": false } ] }, { "qid": "KOC-2026-09-2210-Q004", "text": "Working Principal of Pressure reducing Valve ?", "family": "Auxiliary Equipment", "subtopic": "VALVES", "tid": "KOC-2026-09-2210", "tray": "review", "candidates": [ { "answer_id": "MAST-PVA-004", "score": 0.7277802228927612, "sibling_score": 0.7277802228927612, "answer_score": null, "sibling_qid": "KOC-2026-08-2163-Q010", "sibling_text": "explain the procedure of how pressure reduction valve works with diagram", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "P/V valve & P/V breaker — pressure/vacuum settings and the basis", "cross_family": true }, { "answer_id": "MAST-PVA-002", "score": 0.7009463310241699, "sibling_score": 0.7009463310241699, "answer_score": null, "sibling_qid": "CHE-2026-08-0666-Q006", "sibling_text": "pv valve working", "sibling_family": "Tanker Operations & IG Systems", "via": "sibling", "answer_title": "P/V valve vs P/V breaker — function, location and difference", "cross_family": true }, { "answer_id": "DCP-FIXED-A-003", "score": 0.6806418895721436, "sibling_score": 0.6806418895721436, "answer_score": null, "sibling_qid": "KOC-2025-01-0511-Q005", "sibling_text": "relief valves lifting pressure", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Capacities, pressures, relief settings, regulations and calculation", "cross_family": true } ] }, { "qid": "KOC-2026-09-2210-Q005", "text": "ME is running and TC rpm is more than 10000 Now there is a Blackout, how lubrication is taking place ? ( First I said about VTR he told i don't want to know About older engine so I told about Header tank)", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "MC-C vs MEB Engine", "tid": "KOC-2026-09-2210", "tray": "new", "candidates": [ { "answer_id": "MEB-MEC-P03-004", "score": 0.5779919624328613, "sibling_score": 0.5779919624328613, "answer_score": null, "sibling_qid": "KOL-2026-05-4090-Q001", "sibling_text": "in me engine if ccu fails then how will lubrication takes place for the effected unit", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "ME failure modes & component replacement", "cross_family": false }, { "answer_id": "RTFLEX-319-007", "score": 0.5614100098609924, "sibling_score": 0.5614100098609924, "answer_score": null, "sibling_qid": "KOL-2021-12-1648-Q011", "sibling_text": "rt flex engine lubrication", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "RT-flex lubrication: bearings, cylinders (Pulse Lubricating System) and servo oil", "cross_family": false }, { "answer_id": "ALPHA-LUB-B-001", "score": 0.5602643489837646, "sibling_score": 0.5602643489837646, "answer_score": null, "sibling_qid": "CHE-2026-05-0619-Q004", "sibling_text": "alpha lubrication explains how it determines the feed and controls asking it acts on by rpm or engine load", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Alpha lubricator — control, HMI, sensors, inputs/outputs and feedback", "cross_family": true } ] }, { "qid": "KOC-2026-09-2210-Q006", "text": "Schedule 40 and Schedule 80 difference ?", "family": "Workshop & Welding", "subtopic": "Pipe Pressure Test", "tid": "KOC-2026-09-2210", "tray": "new", "candidates": [ { "answer_id": "PIPE-MAT-004", "score": 0.4481319189071655, "sibling_score": 0.4481319189071655, "answer_score": null, "sibling_qid": "CHE-2025-08-0429-Q005", "sibling_text": "what is schedule pipe 40 and 80 po deciding", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Pipe schedule and its relation to thickness, ID, OD", "cross_family": false }, { "answer_id": "A60-BCLASS-001", "score": 0.3532011806964874, "sibling_score": 0.3532011806964874, "answer_score": null, "sibling_qid": "KOC-2023-10-0237-Q003", "sibling_text": "difference between class a and class a60", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "A-60 / Class ‘A’ fire division — what it is", "cross_family": true }, { "answer_id": "PIPE-MAT-005", "score": 0.35157138109207153, "sibling_score": 0.35157138109207153, "answer_score": 0.3036856323480606, "sibling_qid": "CHE-2026-04-0503-Q004", "sibling_text": "carbon steel pipe and schedule pipe both are same thickness and are lying in workshop how u differentiate", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "“Schedule pipe” vs “carbon-steel pipe” — and how to tell them apart", "cross_family": false } ] }, { "qid": "KOC-2026-09-2210-Q009", "text": "4s Piston diagram ? cross ques", "family": "2-Stroke - Components (Other)", "subtopic": "Piston (Crown/Skirt/Inspection)", "tid": "KOC-2026-09-2210", "tray": "review", "candidates": [ { "answer_id": "PST-CSI-BF-001", "score": 0.6788471341133118, "sibling_score": 0.6788471341133118, "answer_score": 0.4605470418930054, "sibling_qid": "KOC-2026-03-0933-Q003", "sibling_text": "draw 2s piston cross section diagram", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Cross-section of a two-stroke piston — parts, bolting, sealing, materials", "cross_family": false }, { "answer_id": "PIST-CSI-A-002", "score": 0.642928421497345, "sibling_score": 0.642928421497345, "answer_score": null, "sibling_qid": "KOC-2026-08-2160-Q003", "sibling_text": "me piston diagram", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "2-stroke piston: parts, cooling arrangement and operating stresses", "cross_family": false }, { "answer_id": "PIST-CSI-A-003", "score": 0.6259428262710571, "sibling_score": 0.6259428262710571, "answer_score": null, "sibling_qid": "KOC-2026-02-2092-Q004", "sibling_text": "2s piston diagram and material", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston materials: crown, skirt, rod, rings and coatings", "cross_family": false } ] }, { "qid": "KOC-2026-09-2210-Q010", "text": "Draw Bedplate he just wants one block of main bearing ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Main Bearing", "tid": "KOC-2026-09-2210", "tray": "new", "candidates": [ { "answer_id": "MAIN-BRG-B-001", "score": 0.6015210747718811, "sibling_score": 0.6015210747718811, "answer_score": null, "sibling_qid": "KOL-2022-01-3513-Q002", "sibling_text": "main bearing removal asked to draw how jacks are fitted location of chain block", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you open up / remove / overhaul a main-engine main bearing?", "cross_family": false }, { "answer_id": "THRUST-BRG-B-003", "score": 0.5763320326805115, "sibling_score": 0.5763320326805115, "answer_score": null, "sibling_qid": "KOL-2018-10-1423-Q003", "sibling_text": "michel pad bearing draw crossectional diagram how it tilt", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Michell / tilting-pad / collar thrust bearing — working principle", "cross_family": false }, { "answer_id": "MN-BRG-C-002", "score": 0.5666114091873169, "sibling_score": 0.5666114091873169, "answer_score": null, "sibling_qid": "KOL-2021-07-3421-Q001", "sibling_text": "bedding of main bearing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bedding, contact check and fitting of shells", "cross_family": false } ] }, { "qid": "KOC-2026-09-2210-Q011", "text": "How to renew the Atmospheric condenser tubes ?", "family": "Boilers - Construction & Components", "subtopic": "Cascade Tank / Condenser", "tid": "KOC-2026-09-2210", "tray": "review", "candidates": [ { "answer_id": "VAC-COND-004", "score": 0.748848021030426, "sibling_score": 0.748848021030426, "answer_score": 0.4775437831878662, "sibling_qid": "KOC-2026-09-2214-Q010", "sibling_text": "how to renew replace the atmospheric condenser tubes", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Vacuum condenser tube replacement and pressure testing", "cross_family": false }, { "answer_id": "STHX-008", "score": 0.6396366953849792, "sibling_score": 0.6396366953849792, "answer_score": 0.4847192168235779, "sibling_qid": "KOL-2016-12-3018-Q004", "sibling_text": "aux condenser tube renewal", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "STHX-08 — Condensers (main / auxiliary / dump): tube attachment, testing, renewal and safety", "cross_family": true }, { "answer_id": "BLR-TUBE-P02-003", "score": 0.6084120273590088, "sibling_score": 0.6084120273590088, "answer_score": 0.4406065225601196, "sibling_qid": "KOL-2022-04-3531-Q002", "sibling_text": "boiler tube renewal", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Repairing, removing and renewing a boiler tube; Class formalities", "cross_family": false } ] }, { "qid": "KOC-2026-09-2210-Q012", "text": "What is Droop ?", "family": "Automation & Controls", "subtopic": "Droop", "tid": "KOC-2026-09-2210", "tray": "new", "candidates": [ { "answer_id": "DROOP-001", "score": 0.5585050582885742, "sibling_score": 0.5585050582885742, "answer_score": 0.3012654915452003, "sibling_qid": "MUM-2026-07-3817-Q011", "sibling_text": "gov droop", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Governor / speed droop — what, why, setting and formula", "cross_family": false }, { "answer_id": "DROOP-002", "score": 0.5132389664649963, "sibling_score": 0.5132389664649963, "answer_score": null, "sibling_qid": "KOL-2022-10-1925-Q003", "sibling_text": "droop characteristics", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Speed-droop characteristic — the curve and what it shows", "cross_family": false }, { "answer_id": "AVRD-618-001", "score": 0.5038647651672363, "sibling_score": 0.5038647651672363, "answer_score": null, "sibling_qid": "CHE-2026-09-3928-Q007", "sibling_text": "avr droop", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "What is AVR droop, and why is it required?", "cross_family": true } ] }, { "qid": "KOC-2026-09-2211-Q003", "text": "MSC working ?", "family": "SOLAS - Fire Safety", "subtopic": "Cargo Hold Fire", "tid": "KOC-2026-09-2211", "tray": "new", "candidates": [ { "answer_id": "IMO-CC-P01-003", "score": 0.5781772136688232, "sibling_score": 0.5781772136688232, "answer_score": null, "sibling_qid": "KOC-2026-03-0879-Q006", "sibling_text": "msc functions", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Name the IMO Committees and Sub-Committees (MSC, MEPC, FAL …) and state their functions.", "cross_family": true }, { "answer_id": "IMO-CODES-P03-002", "score": 0.4933599531650543, "sibling_score": 0.4933599531650543, "answer_score": null, "sibling_qid": "KOC-2025-01-0521-Q004", "sibling_text": "msc latest", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": true }, { "answer_id": "MSB-ESB-B-001", "score": 0.4910830855369568, "sibling_score": 0.4910830855369568, "answer_score": 0.3547947138547897, "sibling_qid": "KOL-2018-01-2170-Q004", "sibling_text": "maintenance on msb", "sibling_family": "", "via": "sibling", "answer_title": "Routine maintenance & health check of the MSB", "cross_family": false } ] }, { "qid": "KOC-2026-09-2211-Q006", "text": "ORB part D, explain 15.1,.2,.3 ?", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "KOC-2026-09-2211", "tray": "new", "candidates": [ { "answer_id": "ORB-IOPP-OWS-002", "score": 0.4430784583091736, "sibling_score": 0.4430784583091736, "answer_score": null, "sibling_qid": "CHE-2026-05-0543-Q003", "sibling_text": "orb in details", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "The Oil Record Book Part I — purpose, the letter codes, and how entries are made", "cross_family": false }, { "answer_id": "BWM-D1D2-P04-002", "score": 0.42311298847198486, "sibling_score": 0.42311298847198486, "answer_score": null, "sibling_qid": "KOC-2022-01-0048-Q013", "sibling_text": "bwms code explain d1 d2 d4", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "D-2 standard and the BWMS Code (ex-G8) — type approval of treatment systems", "cross_family": true }, { "answer_id": "OWS-ORB-006", "score": 0.4204447269439697, "sibling_score": 0.4204447269439697, "answer_score": null, "sibling_qid": "KOC-2026-03-0870-Q004", "sibling_text": "orb part 2", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "6. Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": false } ] }, { "qid": "KOC-2026-09-2212-Q003", "text": "Flashing of alternator ?", "family": "Electrical - Generator & Alternator", "subtopic": "Residual Magnetism / Flashing", "tid": "KOC-2026-09-2212", "tray": "review", "candidates": [ { "answer_id": "RES-MAG-002", "score": 0.7955737113952637, "sibling_score": 0.7955737113952637, "answer_score": null, "sibling_qid": "KOC-2026-09-2201-Q002", "sibling_text": "flashing of alternator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Generator started but no voltage developing — reasons, and your action as Second Engineer", "cross_family": false }, { "answer_id": "RES-MAG-004", "score": 0.7068039178848267, "sibling_score": 0.7068039178848267, "answer_score": null, "sibling_qid": "MUM-2026-06-3484-Q009", "sibling_text": "flashing of generator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Field flashing — the procedure, where the battery connects, which terminal, and the precautions", "cross_family": false }, { "answer_id": "ALT-MAINT-A-001", "score": 0.661945641040802, "sibling_score": 0.661945641040802, "answer_score": null, "sibling_qid": "MUM-2026-06-3653-Q019", "sibling_text": "alternator routines", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Routine maintenance & care of a ship’s alternator", "cross_family": false } ] }, { "qid": "KOC-2026-09-2213-Q005", "text": "AE thrust bearing clearance ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Thrust Bearing", "tid": "KOC-2026-09-2213", "tray": "review", "candidates": [ { "answer_id": "AE-CSB-346-003", "score": 0.789257287979126, "sibling_score": 0.789257287979126, "answer_score": 0.5419120252132416, "sibling_qid": "KOC-2022-11-1797-Q004", "sibling_text": "ae thrust bearing clearance", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Checking / measuring auxiliary-engine thrust-bearing clearance (end float)", "cross_family": true }, { "answer_id": "THR-BRG-A-001", "score": 0.7749448418617249, "sibling_score": 0.7749448418617249, "answer_score": null, "sibling_qid": "KOL-2021-08-3443-Q003", "sibling_text": "1 thrust bearing clearance of me", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you check, measure, limit and adjust main-engine thrust bearing clearance?", "cross_family": false }, { "answer_id": "TB-BEAR-001", "score": 0.7583184242248535, "sibling_score": 0.7583184242248535, "answer_score": null, "sibling_qid": "MUM-2026-07-3807-Q009", "sibling_text": "thrust bearing clearance procedure", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Thrust bearing clearance — measurement procedure & value", "cross_family": false } ] }, { "qid": "KOC-2026-09-2214-Q001", "text": "Engine type, type of ship sailed ?", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "KOC-2026-09-2214", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.845852792263031, "sibling_score": 0.845852792263031, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.8127205967903137, "sibling_score": 0.8127205967903137, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q001", "sibling_text": "type of ship sailed and engines details", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7732681035995483, "sibling_score": 0.7732681035995483, "answer_score": null, "sibling_qid": "KOL-2025-12-2031-Q002", "sibling_text": "type of ship and engine sailed engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "KOC-2026-09-2214-Q003", "text": "Between the condenser and Evaporator how throttling is happening ? What is the effect of throttling in system?", "family": "Refrigeration & AC", "subtopic": "TEV / TXV", "tid": "KOC-2026-09-2214", "tray": "new", "candidates": [ { "answer_id": "TEV-TXV-005", "score": 0.6288704872131348, "sibling_score": 0.6288704872131348, "answer_score": 0.4500537276268005, "sibling_qid": "KOC-2024-10-1009-Q008", "sibling_text": "in refrigerator throttling valve what happens", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Throttling process and superheat control across the TEV", "cross_family": false }, { "answer_id": "REF-CYC-008", "score": 0.5649670958518982, "sibling_score": 0.5649670958518982, "answer_score": null, "sibling_qid": "KOL-2017-03-1280-Q003", "sibling_text": "secondary refrigerant control of temp through this arrangements", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "8. Secondary refrigeration systems, arrangements and advantages", "cross_family": false }, { "answer_id": "TEV-TXV-002", "score": 0.5564767718315125, "sibling_score": 0.5564767718315125, "answer_score": null, "sibling_qid": "KOL-2018-12-1434-Q004", "sibling_text": "explain thermostatic expansion v v in refrigeration system", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "TEV / TXV — purpose, construction, location and working", "cross_family": false } ] }, { "qid": "KOC-2026-09-2214-Q004", "text": "What is Flash off ?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Flash/Fire Point", "tid": "KOC-2026-09-2214", "tray": "new", "candidates": [ { "answer_id": "RES-MAG-004", "score": 0.5041629076004028, "sibling_score": 0.5041629076004028, "answer_score": null, "sibling_qid": "MUM-2022-11-1369-Q010", "sibling_text": "explain flashing procedure", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Field flashing — the procedure, where the battery connects, which terminal, and the precautions", "cross_family": true }, { "answer_id": "FLPT-579-001", "score": 0.47119855880737305, "sibling_score": 0.47119855880737305, "answer_score": 0.274716392159462, "sibling_qid": "MUM-2025-11-1216-Q008", "sibling_text": "flash pt", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Flash point and fire point — what they are", "cross_family": false }, { "answer_id": "BDN-001-002", "score": 0.4246331453323364, "sibling_score": 0.4246331453323364, "answer_score": null, "sibling_qid": "MUM-2026-06-3472-Q007", "sibling_text": "flash point", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Latest amendment — the flashpoint entry", "cross_family": false } ] }, { "qid": "KOC-2026-09-2214-Q005", "text": "ME is running and TC rpm is more than 10000 Blackout takes place, turbocharger still running how lubrication is taking place ?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "MC-C vs MEB Engine", "tid": "KOC-2026-09-2214", "tray": "new", "candidates": [ { "answer_id": "TURBO-CS-P03-009", "score": 0.6100548505783081, "sibling_score": 0.6100548505783081, "answer_score": null, "sibling_qid": "KOL-2022-07-1702-Q004", "sibling_text": "me turbocharger type nozzle ring working types of lubrication", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Lubrication arrangement: integral vs external, sealing air", "cross_family": true }, { "answer_id": "TC-CS-P01-013", "score": 0.6091669797897339, "sibling_score": 0.6091669797897339, "answer_score": 0.5273206055164337, "sibling_qid": "KOC-2024-07-1847-Q007", "sibling_text": "lubrication of ae turbocharger", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "M·Lubrication of the auxiliary-engine turbocharger", "cross_family": true }, { "answer_id": "TCS-059-P04-016", "score": 0.5939145684242249, "sibling_score": 0.5939145684242249, "answer_score": null, "sibling_qid": "KOL-2025-01-3738-Q002", "sibling_text": "turbocharger when we need to lock and procedure", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Blanking and locking the rotor — when and how", "cross_family": true } ] }, { "qid": "KOC-2026-09-2214-Q006", "text": "Schedule 40 and Schedule 80 difference ?", "family": "Workshop & Welding", "subtopic": "Pipe Pressure Test", "tid": "KOC-2026-09-2214", "tray": "new", "candidates": [ { "answer_id": "PIPE-MAT-004", "score": 0.4481319189071655, "sibling_score": 0.4481319189071655, "answer_score": null, "sibling_qid": "CHE-2025-08-0429-Q005", "sibling_text": "what is schedule pipe 40 and 80 po deciding", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Pipe schedule and its relation to thickness, ID, OD", "cross_family": false }, { "answer_id": "A60-BCLASS-001", "score": 0.35320115089416504, "sibling_score": 0.35320115089416504, "answer_score": null, "sibling_qid": "KOC-2023-10-0237-Q003", "sibling_text": "difference between class a and class a60", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "A-60 / Class ‘A’ fire division — what it is", "cross_family": true }, { "answer_id": "PIPE-MAT-005", "score": 0.35157138109207153, "sibling_score": 0.35157138109207153, "answer_score": 0.3036856323480606, "sibling_qid": "CHE-2026-04-0504-Q001", "sibling_text": "carbon steel pipe and schedule pipe both are same thickness and are lying in workshop how u differentiate", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "“Schedule pipe” vs “carbon-steel pipe” — and how to tell them apart", "cross_family": false } ] }, { "qid": "KOC-2026-09-2214-Q009", "text": "Cross head bearing survey ? ( with piston out, no er crane)", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Crosshead Bearing", "tid": "KOC-2026-09-2214", "tray": "review", "candidates": [ { "answer_id": "XHD-BRG-C-001", "score": 0.7742838859558105, "sibling_score": 0.7742838859558105, "answer_score": 0.5345778614282608, "sibling_qid": "KOC-2022-07-1789-Q001", "sibling_text": "crosshead bearing survey without removing piston", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "A. Present the crosshead bottom shell for survey, piston in place", "cross_family": false }, { "answer_id": "XHD-BRG-B-001", "score": 0.7419340014457703, "sibling_score": 0.7419340014457703, "answer_score": 0.5079350084066391, "sibling_qid": "KOL-2019-09-3272-Q003", "sibling_text": "crosshead how will u prepare for survey tell the position of piston also", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Preparing the crosshead bottom-end bearing and presenting it to the surveyor", "cross_family": false }, { "answer_id": "CXH-BRG-FINAL-1-001", "score": 0.7361524701118469, "sibling_score": 0.7361524701118469, "answer_score": null, "sibling_qid": "KOL-2016-11-1838-Q004", "sibling_text": "cross head bearing survey", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead bearing survey: open-up, removal & inspection", "cross_family": false } ] }, { "qid": "KOC-2026-09-2214-Q012", "text": "FWG how many non return valves ?", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "KOC-2026-09-2214", "tray": "new", "candidates": [ { "answer_id": "SOLAS12-BC-E-003", "score": 0.508915364742279, "sibling_score": 0.508915364742279, "answer_score": null, "sibling_qid": "KOC-2023-05-0187-Q003", "sibling_text": "dewatering system complete explanation cross electrical safety provided for operating the valve number of non return valves", "sibling_family": "", "via": "sibling", "answer_title": "Dewatering system / availability of pumping systems — SOLAS XII/13", "cross_family": false }, { "answer_id": "PCD-P04-01", "score": 0.4909881353378296, "sibling_score": 0.4909881353378296, "answer_score": null, "sibling_qid": "MUM-2025-11-2871-Q006", "sibling_text": "5 valves on bilge pump", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "01. Bilge pump — type, why not centrifugal, and the suction valve chest", "cross_family": true }, { "answer_id": "SDNR-SDR-002", "score": 0.4886060357093811, "sibling_score": 0.4886060357093811, "answer_score": 0.3711378902196884, "sibling_qid": "KOC-2024-09-1862-Q004", "sibling_text": "draw screw down non return valve", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Draw and explain a screw-down non-return (SDNR) valve -- construction and working", "cross_family": true } ] }, { "qid": "KOC-2026-09-2214-Q013", "text": "S/G safematic system working ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Safematic", "tid": "KOC-2026-09-2214", "tray": "new", "candidates": [ { "answer_id": "SGS-BF1-001", "score": 0.6344468593597412, "sibling_score": 0.6344468593597412, "answer_score": null, "sibling_qid": "KOC-2025-08-1561-Q011", "sibling_text": "safematic system how working", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Safematic steering gear system — how it is asked in the oral, and what SOLAS actually requires", "cross_family": false }, { "answer_id": "STG-055-C-001", "score": 0.6276471018791199, "sibling_score": 0.6276471018791199, "answer_score": null, "sibling_qid": "KOL-2023-07-1747-Q005", "sibling_text": "s g safematic system explain", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Safematic steering gear, redundancy and the single-failure criterion", "cross_family": true }, { "answer_id": "FSF-BF073-001", "score": 0.5333269834518433, "sibling_score": 0.5333269834518433, "answer_score": 0.3563454866409302, "sibling_qid": "KOL-2019-02-0262-Q005", "sibling_text": "what is fail safe system in s g", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "What is fail safe — where do we use it on board and how does it work?", "cross_family": true } ] }, { "qid": "KOC-2026-09-2215-Q001", "text": "Llyod open form ?", "family": "Other Conventions", "subtopic": "HNS / OPRC / Salvage", "tid": "KOC-2026-09-2215", "tray": "new", "candidates": [ { "answer_id": "OPRC-SALV-006", "score": 0.6457082629203796, "sibling_score": 0.6457082629203796, "answer_score": 0.3183253094553947, "sibling_qid": "KOL-2024-09-0861-Q005", "sibling_text": "lyod s open form", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Lloyd’s Open Form — purpose, terms, and if none is on board", "cross_family": false }, { "answer_id": "UNCLOS-001", "score": 0.3383438289165497, "sibling_score": 0.3383438289165497, "answer_score": null, "sibling_qid": "KOL-2024-06-0843-Q007", "sibling_text": "unclos all", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is UNCLOS? Explain it in detail — full form, purpose and features", "cross_family": false }, { "answer_id": "CLC-CIV-B-003", "score": 0.3194882571697235, "sibling_score": 0.3194882571697235, "answer_score": null, "sibling_qid": "KOC-2023-01-0144-Q030", "sibling_text": "llmc", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "LLMC: purpose, scope and limitation of maritime claims", "cross_family": false } ] }, { "qid": "KOC-2026-09-2215-Q002", "text": "ODS and ODS entries ?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "NOx / SOx / ODS", "tid": "KOC-2026-09-2215", "tray": "new", "candidates": [ { "answer_id": "AIRP-188-005", "score": 0.5714977979660034, "sibling_score": 0.5714977979660034, "answer_score": 0.2418539822101593, "sibling_qid": "KOC-2026-04-0909-Q007", "sibling_text": "ods log what all entries", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "ODS Record Book and the IAPP equipment list — what and where?", "cross_family": false }, { "answer_id": "AIRP-188-001", "score": 0.5498180389404297, "sibling_score": 0.5498180389404297, "answer_score": 0.23941025733947754, "sibling_qid": "CHE-2025-10-0070-Q006", "sibling_text": "what is ods", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is an ozone-depleting substance, and what is ODP?", "cross_family": false }, { "answer_id": "AIRP-188-003", "score": 0.46812689304351807, "sibling_score": 0.46812689304351807, "answer_score": null, "sibling_qid": "KOL-2025-03-0919-Q002", "sibling_text": "what is ods how to control", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "How are ODS controlled and prohibited under MARPOL Annex VI?", "cross_family": false } ] }, { "qid": "KOC-2026-09-2215-Q003", "text": "TPA & Immersion suit difference ?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Solas Pack A / B", "tid": "KOC-2026-09-2215", "tray": "new", "candidates": [ { "answer_id": "SCBA-EEBD-005", "score": 0.593265950679779, "sibling_score": 0.593265950679779, "answer_score": 0.40127903819084165, "sibling_qid": "KOL-2017-01-0042-Q005", "sibling_text": "difference between firemans outfit ppa immerssion suit when it is used", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fireman's outfit vs PPA vs immersion suit — what each is, when used", "cross_family": true }, { "answer_id": "LB-SURV-C-003", "score": 0.491136372089386, "sibling_score": 0.491136372089386, "answer_score": null, "sibling_qid": "CHE-2026-02-0103-Q002", "sibling_text": "immersion suit monthly 6 month and annual maintenance", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Routine maintenance ladder — weekly / monthly / quarterly / 6-monthly onboard checks", "cross_family": false }, { "answer_id": "MOB-MKR-006", "score": 0.4632596969604492, "sibling_score": 0.4632596969604492, "answer_score": null, "sibling_qid": "KOC-2025-05-0596-Q009", "sibling_text": "difference between lifebuoy of mob and normal mob somethinh related to weight", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What is the difference between the MOB lifebuoy and a normal lifebuoy, and what is special about it?", "cross_family": false } ] }, { "qid": "KOC-2026-09-2215-Q005", "text": " Load, shear force and bending moment diagram when tanks filled up to 98% ?", "family": "SOLAS", "subtopic": "Bending Moment / Shear / Contraflexure", "tid": "KOC-2026-09-2215", "tray": "review", "candidates": [ { "answer_id": "BM-SF-CF-002", "score": 0.72735995054245, "sibling_score": 0.72735995054245, "answer_score": 0.5390842676162719, "sibling_qid": "KOC-2024-11-0464-Q009", "sibling_text": "dram load diagram shear force and bending moment diagram of fully filled tank acting on longitudinal bulkhead", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Load, shear-force and bending-moment diagrams for a full-tank bulkhead", "cross_family": false }, { "answer_id": "BHD-TYPE-A-003", "score": 0.6443169116973877, "sibling_score": 0.6443169116973877, "answer_score": null, "sibling_qid": "KOC-2024-01-0284-Q005", "sibling_text": "fully loaded tank draw load diagram shear force and bending stress diagram on bulkhead", "sibling_family": "", "via": "sibling", "answer_title": "Tanker and cargo-tank bulkheads — transverse and longitudinal arrangement", "cross_family": false }, { "answer_id": "SHELL-PLT-B-001", "score": 0.5070685148239136, "sibling_score": 0.5070685148239136, "answer_score": null, "sibling_qid": "KOC-2026-03-0880-Q005", "sibling_text": "show sheer strake keel plate camber ballast tank from diagram", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Sheer strake — location, why strengthened, deck-edge / gunwale connection", "cross_family": false } ] }, { "qid": "KOC-2026-09-2216-Q004", "text": "Letter of protest ?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Engine Nomenclature", "tid": "KOC-2026-09-2216", "tray": "new", "candidates": [ { "answer_id": "OPRC-SALV-006", "score": 0.45203882455825806, "sibling_score": 0.45203882455825806, "answer_score": null, "sibling_qid": "KOL-2022-09-0676-Q002", "sibling_text": "lyod open letter for salvage", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Lloyd’s Open Form — purpose, terms, and if none is on board", "cross_family": true }, { "answer_id": "SHELL-PLT-A-001", "score": 0.4336264729499817, "sibling_score": 0.4336264729499817, "answer_score": null, "sibling_qid": "KOL-2025-09-1045-Q005", "sibling_text": "how to write a letter to your company if ur ship hull has a hole shell expansion plan", "sibling_family": "", "via": "sibling", "answer_title": "The shell expansion plan, and how you identify a plate", "cross_family": false }, { "answer_id": "IAPP-595-001", "score": 0.41203072667121887, "sibling_score": 0.41203072667121887, "answer_score": null, "sibling_qid": "KOC-2025-07-0633-Q050", "sibling_text": "how will you show the survyer ur ship is iapp complaint", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "You have an IAPP survey tomorrow. What preparation do you do, what will the surveyor check, and what documents and certificates will you show him?", "cross_family": true } ] }, { "qid": "KOC-2026-09-2216-Q008", "text": "You are on watch, Generator Explosion , what is your action ?", "family": "2-Stroke - Operations & Casualty", "subtopic": "Casualty / Emergency Stop", "tid": "KOC-2026-09-2216", "tray": "new", "candidates": [ { "answer_id": "CAS-ESTOP-005", "score": 0.6063349843025208, "sibling_score": 0.6063349843025208, "answer_score": null, "sibling_qid": "KOC-2025-08-2068-Q003", "sibling_text": "there is a major fire followed by explosion in the er during your watch what is your first action", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "After an engine-room fire or explosion — action as 2/E", "cross_family": false }, { "answer_id": "SAE-388-004", "score": 0.5669722557067871, "sibling_score": 0.5669722557067871, "answer_score": 0.45663917958736416, "sibling_qid": "KOL-2021-09-3459-Q005", "sibling_text": "air starting line explosion take place allready effect rao sir told with grace marks passing you", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "A starting air line bursting disc has blown, or a line explosion has occurred — your action?", "cross_family": false }, { "answer_id": "2E-EMACT-004", "score": 0.5425781607627869, "sibling_score": 0.5425781607627869, "answer_score": null, "sibling_qid": "CHE-2026-02-0474-Q009", "sibling_text": "fire alarm in your watch what is your action", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Fire alarm during the engine-room watch — immediate action", "cross_family": true } ] }, { "qid": "KOC-2026-09-2216-Q009", "text": "What is the latest OWS update and what is the circular number ?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "Annex VI Amendments / Latest Requirements", "tid": "KOC-2026-09-2216", "tray": "new", "candidates": [ { "answer_id": "AV6-P01-01", "score": 0.3756599426269531, "sibling_score": 0.3756599426269531, "answer_score": null, "sibling_qid": "KOL-2025-01-0909-Q008", "sibling_text": "what is latest in annex 6", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Explain the latest Annex VI amendment or MEPC development, and state its date and status.", "cross_family": false }, { "answer_id": "IMO-CODES-P03-003", "score": 0.36374253034591675, "sibling_score": 0.36374253034591675, "answer_score": 0.25964488089084625, "sibling_qid": "KOC-2025-11-0726-Q008", "sibling_text": "latest msc circular", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Latest IMO/MSC: MSC 108, 109, 110 and MSC 111 outcomes", "cross_family": true }, { "answer_id": "A6-NSEC-001", "score": 0.3617297410964966, "sibling_score": 0.3617297410964966, "answer_score": null, "sibling_qid": "MUM-2024-04-0173-Q009", "sibling_text": "latest amendments in annex 6", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Annex VI — documents, certificates & latest amendments", "cross_family": false } ] }, { "qid": "KOC-2026-09-2219-Q004", "text": "All ME slow down with values ?", "family": "2-Stroke - Operations & Casualty", "subtopic": "Casualty / Emergency Stop", "tid": "KOC-2026-09-2219", "tray": "new", "candidates": [ { "answer_id": "CAS-ESTOP-004", "score": 0.558775007724762, "sibling_score": 0.558775007724762, "answer_score": null, "sibling_qid": "KOL-2016-08-2994-Q002", "sibling_text": "me slowdown during watch", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Slow-down, emergency stop and emergency shut-down — what they are and what happens", "cross_family": false }, { "answer_id": "SLOWTURN-BT-001", "score": 0.5198454260826111, "sibling_score": 0.5198454260826111, "answer_score": null, "sibling_qid": "KOC-2021-05-2022-Q020", "sibling_text": "slow turning explain", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Slow turning of the main engine — the slow-turning valve and the failure alarm", "cross_family": false }, { "answer_id": "LO-PR-ALM-001", "score": 0.5034747123718262, "sibling_score": 0.5034747123718262, "answer_score": null, "sibling_qid": "MUM-2023-06-2732-Q004", "sibling_text": "me slows down on low lo pressure your actions", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main engine low lubricating-oil pressure — alarm, slowdown or trip: your actions as 2/E, and is the alarm true or false?", "cross_family": true } ] }, { "qid": "KOC-2026-09-2219-Q005", "text": "Propeller design factors affecting its efficiency ?", "family": "Shafting, Propeller & Rudder", "subtopic": "Stern Tube / Shafting / Propeller / Rudder", "tid": "KOC-2026-09-2219", "tray": "review", "candidates": [ { "answer_id": "SPR-STERN-001", "score": 0.7958390116691589, "sibling_score": 0.7958390116691589, "answer_score": 0.6554904639720917, "sibling_qid": "NOI-2026-09-0022-Q001", "sibling_text": "propeller efficiency design", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Propeller design factors, efficiency, handedness & material", "cross_family": false }, { "answer_id": "RES-PROP-P03-002", "score": 0.7378183603286743, "sibling_score": 0.7378183603286743, "answer_score": 0.5645494878292083, "sibling_qid": "KOL-2020-01-0383-Q002", "sibling_text": "propeller efficiency", "sibling_family": "", "via": "sibling", "answer_title": "2. Propulsive coefficients: QPC, hull/propeller/relative-rotative efficiency, wake, slip and propeller curves", "cross_family": false }, { "answer_id": "SPR-STERN-004", "score": 0.719741940498352, "sibling_score": 0.719741940498352, "answer_score": 0.544154816865921, "sibling_qid": "KOL-2022-03-3523-Q003", "sibling_text": "rake of propeller advantages", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Propeller rake & skew", "cross_family": false } ] }, { "qid": "KOC-2026-09-2220-Q001", "text": "Condition of class ? Certificate validity ( he said there are two certificate )", "family": "Surveys - Statutory", "subtopic": "Condition of Class", "tid": "KOC-2026-09-2220", "tray": "review", "candidates": [ { "answer_id": "COC-001", "score": 0.700680673122406, "sibling_score": 0.700680673122406, "answer_score": null, "sibling_qid": "MUM-2025-03-2273-Q006", "sibling_text": "class certificate vs condition of class", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is a Condition of Class? Give examples, say where it is found, how much time is given to rectify it, and what happens if it is not met in time.", "cross_family": false }, { "answer_id": "CERT-LIST-P02-005", "score": 0.6826490759849548, "sibling_score": 0.6826490759849548, "answer_score": 0.4297918975353241, "sibling_qid": "KOL-2021-07-0531-Q007", "sibling_text": "class certificates", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Class certificate / classification certificate", "cross_family": false }, { "answer_id": "CERT-LIST-P01-001", "score": 0.6527256965637207, "sibling_score": 0.6527256965637207, "answer_score": null, "sibling_qid": "KOL-2026-08-4162-Q004", "sibling_text": "what are the certificates issued by the class", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "List the statutory certificates carried onboard a ship.", "cross_family": false } ] }, { "qid": "KOC-2026-09-2220-Q002", "text": "⁠IGG vs Flue gas system ? Advantage and disadvantage of both ?", "family": "Cargo Ops - Tankers", "subtopic": "IG System", "tid": "KOC-2026-09-2220", "tray": "review", "candidates": [ { "answer_id": "COT-P02-03", "score": 0.7641206979751587, "sibling_score": 0.7641206979751587, "answer_score": 0.5316435575485229, "sibling_qid": "KOC-2026-09-2168-Q001", "sibling_text": "flue gas ig and igg advantage and disadvantage", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Compare a boiler-flue inert-gas system with a dedicated inert-gas generator and explain why suitable boiler flue gas—not main-engine exhaust—is normally used.", "cross_family": false }, { "answer_id": "COT-P02-05", "score": 0.5482569336891174, "sibling_score": 0.5482569336891174, "answer_score": null, "sibling_qid": "KOC-2024-01-0289-Q009", "sibling_text": "ig system why need water inside scrubber tower from where the flue gas getting pressure to pass through the scrubber water where the blowers located", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Draw and explain the inert-gas scrubber tower, including its internal parts, cooling/cleaning action, water supply and safety monitoring.", "cross_family": false }, { "answer_id": "COT-P02-01", "score": 0.5380039215087891, "sibling_score": 0.5380039215087891, "answer_score": null, "sibling_qid": "KOL-2016-07-0004-Q003", "sibling_text": "ig system what is blower isolation v v automatic changeover v v high velocity vent functions", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Draw and explain the complete tanker inert-gas system from gas production to the cargo tanks, identifying the main plant, control and deck components.", "cross_family": false } ] }, { "qid": "KOC-2026-10-2217-Q005", "text": "Welding machine specifications to make requisition ?", "family": "Workshop & Welding", "subtopic": "Plasma / Arc / TIG / MIG", "tid": "KOC-2026-10-2217", "tray": "review", "candidates": [ { "answer_id": "WBS-C-002", "score": 0.7710613012313843, "sibling_score": 0.7710613012313843, "answer_score": null, "sibling_qid": "KOC-2025-01-1482-Q003", "sibling_text": "how to order welding machine what is the minimum and maximum current rating", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "The arc welding set — transformer construction, output, current control and ordering parameters", "cross_family": false }, { "answer_id": "WELD-PATM-009", "score": 0.7452033758163452, "sibling_score": 0.7452033758163452, "answer_score": 0.5512801945209503, "sibling_qid": "KOL-2016-07-2062-Q001", "sibling_text": "1specification for order welding transformer", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding machine / transformer – specification and safety", "cross_family": false }, { "answer_id": "WELD-PATM-002", "score": 0.7294092774391174, "sibling_score": 0.7294092774391174, "answer_score": null, "sibling_qid": "KOL-2019-10-3279-Q006", "sibling_text": "welding electrode specifications", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Manual metal-arc – electrode and current selection", "cross_family": false } ] }, { "qid": "KOC-2026-10-2217-Q009", "text": "Lights in steering gear panel ?Internal ques KEY ANS :(wanted especially to hear space heater indication)", "family": "Electrical - Generator & Alternator", "subtopic": "AVR / Excitation", "tid": "KOC-2026-10-2217", "tray": "new", "candidates": [ { "answer_id": "IM-GEN-B-002", "score": 0.6342700123786926, "sibling_score": 0.6342700123786926, "answer_score": null, "sibling_qid": "KOC-2026-05-0007-Q008", "sibling_text": "internal space heater and voltage", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Types of motors onboard and types of induction motors", "cross_family": false }, { "answer_id": "LT-SRC-008", "score": 0.5991711616516113, "sibling_score": 0.5991711616516113, "answer_score": 0.47269645929336546, "sibling_qid": "KOC-2024-11-1433-Q006", "sibling_text": "navigation light panel", "sibling_family": "", "via": "sibling", "answer_title": "What is provided in the navigation-light panel, and where is it located?", "cross_family": false }, { "answer_id": "SG-055-B-002", "score": 0.5872007608413696, "sibling_score": 0.5872007608413696, "answer_score": null, "sibling_qid": "KOC-2025-02-1496-Q009", "sibling_text": "steering gear electrical alarms", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Steering-gear alarms, trips and electrical / hydraulic safeties", "cross_family": true } ] }, { "qid": "KOC-2026-10-2218-Q001", "text": "Type of ship- container ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOC-2026-10-2218", "tray": "review", "candidates": [ { "answer_id": "DB-TORBOX-B-003", "score": 0.8710220456123352, "sibling_score": 0.8710220456123352, "answer_score": null, "sibling_qid": "CHE-2026-04-0150-Q001", "sibling_text": "type of ship sailed container", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "What is a torsion box — definition and construction", "cross_family": false }, { "answer_id": "SOLAS12-BC-A-001", "score": 0.7650558352470398, "sibling_score": 0.7650558352470398, "answer_score": null, "sibling_qid": "NOI-2026-09-0010-Q001", "sibling_text": "type of ship car carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "SOLAS definition and scope of a bulk carrier", "cross_family": false }, { "answer_id": "SOLAS12-BC-B-001", "score": 0.7560540437698364, "sibling_score": 0.7560540437698364, "answer_score": null, "sibling_qid": "MUM-2026-06-3622-Q001", "sibling_text": "type of ship container and bulk safety", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Additional safety measures for bulk carriers (SOLAS Chapter XII)", "cross_family": false } ] }, { "qid": "KOC-2026-10-2218-Q004", "text": "How often do you test DCP powder?", "family": "SOLAS - Fire Safety", "subtopic": "DCP / Dry Powder", "tid": "KOC-2026-10-2218", "tray": "new", "candidates": [ { "answer_id": "DCP-PPC-003", "score": 0.6411163806915283, "sibling_score": 0.6411163806915283, "answer_score": null, "sibling_qid": "MUM-2023-11-0147-Q005", "sibling_text": "dcp checks carried out monthly six monthly", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "C3 — DCP — General Working, Advantages, Disadvantages & Common Issues", "cross_family": false }, { "answer_id": "FOAM-SYS-P06-001", "score": 0.5732999444007874, "sibling_score": 0.5732999444007874, "answer_score": 0.38929197341203686, "sibling_qid": "KOC-2026-04-0906-Q007", "sibling_text": "how frequently do you test foam sample", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "1. Foam sample testing & analysis — frequency and certificate", "cross_family": false }, { "answer_id": "DCP-B-001", "score": 0.553691029548645, "sibling_score": 0.553691029548645, "answer_score": 0.3809868097305298, "sibling_qid": "KOC-2021-12-2028-Q004", "sibling_text": "maintenance of dcp system will u send sample for analysis", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fixed DCP system — maintenance, agitation, sampling and survey preparation", "cross_family": false } ] }, { "qid": "KOC-2026-10-2218-Q009", "text": "Titles of MLC ?", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOC-2026-10-2218", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.6266291737556458, "sibling_score": 0.6266291737556458, "answer_score": 0.2844179555773735, "sibling_qid": "KOC-2026-05-2135-Q011", "sibling_text": "mlc titles explain title 1 explain dmlc part 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "MLC-WRH-B-006", "score": 0.556519091129303, "sibling_score": 0.556519091129303, "answer_score": null, "sibling_qid": "MUM-2026-06-3645-Q001", "sibling_text": "certificates of mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false }, { "answer_id": "ISMNC-002", "score": 0.47876590490341187, "sibling_score": 0.47876590490341187, "answer_score": null, "sibling_qid": "MUM-2026-01-0685-Q005", "sibling_text": "mlc mnc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a major non-conformity under the ISM Code? Give the definition and name some.", "cross_family": true } ] }, { "qid": "KOC-2026-10-2218-Q010", "text": "Explain title 2 ?", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOC-2026-10-2218", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.5032936334609985, "sibling_score": 0.5032936334609985, "answer_score": null, "sibling_qid": "KOC-2026-05-2135-Q011", "sibling_text": "mlc titles explain title 1 explain dmlc part 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "SOLAS-CH-003", "score": 0.5025554895401001, "sibling_score": 0.5025554895401001, "answer_score": null, "sibling_qid": "KOC-2025-05-2065-Q008", "sibling_text": "explain solas chapter 2 of 2", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS Chapter II-2 - fire protection, detection and extinction", "cross_family": true }, { "answer_id": "BWM-P01-001", "score": 0.4654839336872101, "sibling_score": 0.4654839336872101, "answer_score": null, "sibling_qid": "MUM-2026-02-0776-Q003", "sibling_text": "explain about d 2 details", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "", "cross_family": true } ] }, { "qid": "KOC-2026-10-2221-Q002", "text": "Why EGB safety valve setting is higher than boiler safety valve ?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2026-10-2221", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-001", "score": 0.6972423195838928, "sibling_score": 0.6972423195838928, "answer_score": null, "sibling_qid": "KOC-2026-05-2126-Q006", "sibling_text": "egb safety valve setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "ECON-EGB-004", "score": 0.671040415763855, "sibling_score": 0.671040415763855, "answer_score": 0.4963045924901962, "sibling_qid": "KOL-2025-10-3868-Q005", "sibling_text": "why economiser safety valve has highier setting than auxiliary boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Safety-valve setting after overhaul & why set higher than the boiler", "cross_family": true }, { "answer_id": "BLR-SURV-P02-001", "score": 0.6480595469474792, "sibling_score": 0.6480595469474792, "answer_score": null, "sibling_qid": "MUM-2026-05-3267-Q005", "sibling_text": "boiler safety valve why you required easing gear", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOC-2026-10-2221-Q004", "text": "Improved High lift safety valve diagram ?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2026-10-2221", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.885160505771637, "sibling_score": 0.885160505771637, "answer_score": null, "sibling_qid": "KOC-2026-09-2173-Q003", "sibling_text": "improved high lift safety valve diagram", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "MR-DS-PV-B-006", "score": 0.7352163195610046, "sibling_score": 0.7352163195610046, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q005", "sibling_text": "full bore safety valve diagram", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "6. Deck isolating valve, deck relief/safety devices, and cargo-tank pressure", "cross_family": false }, { "answer_id": "ACSS-002", "score": 0.4984105408191681, "sibling_score": null, "answer_score": 0.4984105408191681, "sibling_qid": "", "sibling_text": "relief safety valves settings testing lifting reasons bursting disc set just above stage working pressure the class standard accumulation limit is about 10 though the exact set point is a maker sms value non isolable from its stage test to the maker s method easing gear or test rig for lifting pressure log and reset", "sibling_family": "", "via": "answer_title", "answer_title": "Relief / safety valves: settings, testing, lifting reasons; bursting disc", "cross_family": false } ] }, { "qid": "KOC-2026-10-2221-Q006", "text": "What will you do if OMD alarm activate ? Cross ", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "OMD / Oil Mist Detector", "tid": "KOC-2026-10-2221", "tray": "review", "candidates": [ { "answer_id": "CCE-322-005", "score": 0.6802641749382019, "sibling_score": 0.6802641749382019, "answer_score": 0.437917685508728, "sibling_qid": "CHE-2026-08-3865-Q006", "sibling_text": "omd alarm steps to be done and cross que", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Action on an OMD / crankcase-explosion alarm; checking a faulty sensor", "cross_family": false }, { "answer_id": "OMD-001", "score": 0.6784905791282654, "sibling_score": 0.6784905791282654, "answer_score": 0.3836321264505386, "sibling_qid": "KOC-2025-01-0531-Q008", "sibling_text": "if omd alarm sounds then your actions", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "The OMD alarm sounds on your watch. What are your actions, the checks and crankcase inspection that follow, and what are the alarm levels?", "cross_family": false }, { "answer_id": "OMD-002", "score": 0.38390935957431793, "sibling_score": null, "answer_score": 0.38390935957431793, "sibling_qid": "", "sibling_text": "how do you verify whether an omd alarm is a true alarm or a fault default posture treat the alarm as real until you have positively proved a fault never dismiss it to avoid the slowdown or shutdown approved units may distinguish a pre alarm from the slowdown shutdown alarm and give a separate fault signal distinct from a mist alarm the exact fault modes are model dependent e g graviner mk7", "sibling_family": "", "via": "answer_title", "answer_title": "How do you verify whether an OMD alarm is a true alarm or a fault?", "cross_family": false } ] }, { "qid": "KOC-2026-10-2221-Q007", "text": "⁠Boiler back firing reason ? prevention ?", "family": "Boilers - Operations & Firing", "subtopic": "Boiler Backfire / Blowback", "tid": "KOC-2026-10-2221", "tray": "review", "candidates": [ { "answer_id": "BFM-330-003", "score": 0.7514036297798157, "sibling_score": 0.7514036297798157, "answer_score": 0.5310238361358642, "sibling_qid": "MUM-2025-12-2879-Q008", "sibling_text": "boiler running in manual mode resulting in back flow for each fire reason", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler vibration, backflow and furnace blowback during firing", "cross_family": false }, { "answer_id": "BFS-257-006", "score": 0.7474718689918518, "sibling_score": 0.7474718689918518, "answer_score": 0.5932934761047363, "sibling_qid": "MUM-2023-09-2193-Q006", "sibling_text": "boiler is back firing reasons", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler backfire / blowback / panting — causes, prevention, actions", "cross_family": false }, { "answer_id": "BBF-621-001", "score": 0.728826642036438, "sibling_score": 0.728826642036438, "answer_score": 0.5588191926479339, "sibling_qid": "MUM-2026-09-3936-Q006", "sibling_text": "boiler blow back reason", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "What is boiler backfire / blowback? Explain the furnace event, the reasons, and how you prevent it.", "cross_family": false } ] }, { "qid": "KOC-2026-10-2221-Q008", "text": "Fuel injection overhaul? Testing procedures , what is the cause of losing pressure , what you will do in this case ?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Pump Pressure / Fuel Oil Pressure", "tid": "KOC-2026-10-2221", "tray": "review", "candidates": [ { "answer_id": "FINJ-002", "score": 0.7122294306755066, "sibling_score": 0.7122294306755066, "answer_score": 0.5678387939929962, "sibling_qid": "MUM-2026-05-3078-Q005", "sibling_text": "fuel injector pressure test how you perform spray pattern test", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel injector overhaul and testing — spray pattern and opening pressure", "cross_family": false }, { "answer_id": "FINJ-005", "score": 0.6906645894050598, "sibling_score": 0.6906645894050598, "answer_score": null, "sibling_qid": "CHE-2026-08-0669-Q006", "sibling_text": "fuel injector leaking how will find", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel injector leakage, dribbling and non-firing — indications and effects", "cross_family": false }, { "answer_id": "FPP-049-003", "score": 0.6869471073150635, "sibling_score": 0.6869471073150635, "answer_score": null, "sibling_qid": "MUM-2022-10-2712-Q011", "sibling_text": "reasons for fuel oil pressure dropping", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Reasons for fuel oil pressure dropping", "cross_family": false } ] }, { "qid": "KOC-2026-10-2222-Q001", "text": "ACB not opening ? What is your action as 2E? No bus tie what will you do 3.it’s in the same section board , then how will you do ?", "family": "Electrical - Switchgear & Protection", "subtopic": "Circuit Breakers (ACB / VCB / SF6)", "tid": "KOC-2026-10-2222", "tray": "new", "candidates": [ { "answer_id": "CB-033-A-001", "score": 0.574917197227478, "sibling_score": 0.574917197227478, "answer_score": 0.5104438364505768, "sibling_qid": "KOC-2025-11-1614-Q001", "sibling_text": "acb not opening in auto and manual what is your action as 2 e", "sibling_family": "", "via": "sibling", "answer_title": "What are your actions if a generator / main breaker or ACB will not open, close, or operate correctly?", "cross_family": false }, { "answer_id": "CB-ACB-F-001", "score": 0.5624294877052307, "sibling_score": 0.5624294877052307, "answer_score": null, "sibling_qid": "CHE-2026-04-0141-Q011", "sibling_text": "how acb working with bus tie bar and x", "sibling_family": "", "via": "sibling", "answer_title": "ACB function & working principle in the ship distribution system", "cross_family": false }, { "answer_id": "OCR-185-006", "score": 0.5419459939002991, "sibling_score": 0.5419459939002991, "answer_score": null, "sibling_qid": "MUM-2026-05-3170-Q007", "sibling_text": "bus bar short circuited but short circuit trip didn t activate what will happen now", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "If short-circuit protection fails to operate; how it is checked", "cross_family": true } ] }, { "qid": "KOC-2026-10-2223-Q001", "text": "Cargo hold fire detection system working ?Location of extractor fan? how many numbers?", "family": "SOLAS - Fire Safety", "subtopic": "Cargo Hold Fire", "tid": "KOC-2026-10-2223", "tray": "review", "candidates": [ { "answer_id": "CH-FIRE-001", "score": 0.6834689974784851, "sibling_score": 0.6834689974784851, "answer_score": 0.5498587667942046, "sibling_qid": "KOL-2024-03-0822-Q005", "sibling_text": "cargo hold fire detection arrangement int bwm d1 d2", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Cargo hold fire detection / smoke detection system", "cross_family": false }, { "answer_id": "FIRE-P01-02", "score": 0.6664232611656189, "sibling_score": 0.6664232611656189, "answer_score": null, "sibling_qid": "KOL-2024-11-3725-Q006", "sibling_text": "fixed fire fighting system onboard 6 hypermist auto operation internal 1 cross head clearance 2lo pr dropping what all you will tell to check 4e", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist — automatic and manual activation, detector logic, and backup supply", "cross_family": false }, { "answer_id": "CH-FIRE-002", "score": 0.6551363468170166, "sibling_score": 0.6551363468170166, "answer_score": null, "sibling_qid": "MUM-2025-10-0518-Q005", "sibling_text": "fixed fire fighting system for cargo hold and xq", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Cargo hold fixed firefighting / extinguishing arrangements", "cross_family": false } ] }, { "qid": "KOC-2026-10-2223-Q003", "text": "Procedure for testing WIDAS alarm? Types of detector?", "family": "Cargo Ops - Bulk Carriers", "subtopic": "WIDAS / Smoke Detection", "tid": "KOC-2026-10-2223", "tray": "review", "candidates": [ { "answer_id": "CCE-322-006", "score": 0.6548900008201599, "sibling_score": 0.6548900008201599, "answer_score": 0.4660068929195404, "sibling_qid": "CHE-2026-08-3862-Q012", "sibling_text": "widas alarm system how to test the alarm", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Testing the OMD alarm; alarm and shutdown values", "cross_family": false }, { "answer_id": "FSH-DET-005", "score": 0.5844852924346924, "sibling_score": 0.5844852924346924, "answer_score": 0.41944181025028227, "sibling_qid": "KOL-2025-12-1144-Q003", "sibling_text": "fire detectors type testing", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Testing, planned maintenance, fault identification, isolation and circuit protection", "cross_family": true }, { "answer_id": "WIDAS-SMK-006", "score": 0.566378653049469, "sibling_score": 0.566378653049469, "answer_score": null, "sibling_qid": "KOL-2017-01-0045-Q002", "sibling_text": "cargo hatch fire detection system testing of the system how u will confirm that all pipes are clear how the sample is taken by fan fan material where it is located alarm limits", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Cargo-hold smoke / fire detection system and how it works", "cross_family": false } ] }, { "qid": "KOC-2026-10-2224-Q001", "text": "PSC detention forms and code ? Code 17 and 30 ", "family": "Surveys - Statutory", "subtopic": "Detention / Clear Ground", "tid": "KOC-2026-10-2224", "tray": "new", "candidates": [ { "answer_id": "DCG-003", "score": 0.6156454086303711, "sibling_score": 0.6156454086303711, "answer_score": 0.3139911100268364, "sibling_qid": "KOL-2023-06-0750-Q004", "sibling_text": "code for psc detention", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the PSC deficiency code, which code leads to a detainable deficiency, and can you give an example of a \"clear-ground code\"?", "cross_family": false }, { "answer_id": "DCG-002", "score": 0.5294522047042847, "sibling_score": 0.5294522047042847, "answer_score": null, "sibling_qid": "KOL-2017-04-0085-Q004", "sibling_text": "psc detention reasons", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What are the reasons for PSC detention and what is a detainable deficiency? Which engine-room deficiencies can detain your ship, which conventions can ground a detainable deficiency, and what is banning by PSC?", "cross_family": false }, { "answer_id": "PSC-004", "score": 0.48799243569374084, "sibling_score": 0.48799243569374084, "answer_score": 0.44144612550735474, "sibling_qid": "KOL-2025-09-1078-Q002", "sibling_text": "pr 17 form suspension of inspection", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "4. PSC documents: Form A, Form B, action codes, suspension and detention", "cross_family": false } ] }, { "qid": "KOC-2026-10-2224-Q002", "text": "MARPOL annex 2 cargo category and explanation ?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "Annex VI / Pollutants & Scope", "tid": "KOC-2026-10-2224", "tray": "review", "candidates": [ { "answer_id": "CHEM-PA-012", "score": 0.6631247997283936, "sibling_score": 0.6631247997283936, "answer_score": null, "sibling_qid": "CHE-2026-04-0159-Q002", "sibling_text": "categories of cargo your ship cargo", "sibling_family": "MARPOL - Annex II (NLS)", "via": "sibling", "answer_title": "Differentiating chemical tankers and finding a ship’s allowable cargo", "cross_family": true }, { "answer_id": "IBC-BCH-B-002", "score": 0.6627201437950134, "sibling_score": 0.6627201437950134, "answer_score": null, "sibling_qid": "MUM-2026-02-0730-Q008", "sibling_text": "categories of chemical cargoes explain them", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Chemical cargo categories — MARPOL Annex II and IBC Chapters 17 & 18", "cross_family": true }, { "answer_id": "AII-DISCH-005", "score": 0.6452184915542603, "sibling_score": 0.6452184915542603, "answer_score": null, "sibling_qid": "KOC-2026-02-2094-Q012", "sibling_text": "categories of chemical cargoes from which regulations it can be identified", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "How chemical cargo categories are identified and where the requirements are found", "cross_family": true } ] }, { "qid": "KOC-2026-10-2224-Q003", "text": "⁠P&A manual, contents and need ?", "family": "MARPOL - Annex II (NLS)", "subtopic": "Chemical Cargo / P&A Manual", "tid": "KOC-2026-10-2224", "tray": "review", "candidates": [ { "answer_id": "CHEM-PA-003", "score": 0.7108146548271179, "sibling_score": 0.7108146548271179, "answer_score": 0.3432766705751419, "sibling_qid": "KOC-2024-09-0415-Q004", "sibling_text": "contents of p a manual", "sibling_family": "MARPOL - Annex II (NLS)", "via": "sibling", "answer_title": "The Procedures & Arrangements (P&A) Manual", "cross_family": false }, { "answer_id": "CHEM-PA-001", "score": 0.6719462275505066, "sibling_score": 0.6719462275505066, "answer_score": null, "sibling_qid": "KOL-2026-03-1209-Q003", "sibling_text": "what is p and a manual", "sibling_family": "MARPOL - Annex II (NLS)", "via": "sibling", "answer_title": "Scope and applicability of MARPOL Annex II", "cross_family": false }, { "answer_id": "PA-MAN-001", "score": 0.6260777711868286, "sibling_score": 0.6260777711868286, "answer_score": null, "sibling_qid": "MUM-2026-06-3604-Q009", "sibling_text": "p a manual", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What is the P&A Manual (Procedures and Arrangements Manual)?", "cross_family": true } ] }, { "qid": "KOC-2026-10-2224-Q004", "text": "⁠Volatile and flammable material difference ?", "family": "MARPOL - General & Compliance", "subtopic": "Bunker Sample Storage", "tid": "KOC-2026-10-2224", "tray": "review", "candidates": [ { "answer_id": "FLD-601-004", "score": 0.6980107426643372, "sibling_score": 0.6980107426643372, "answer_score": 0.5748840212821961, "sibling_qid": "KOC-2024-11-0452-Q007", "sibling_text": "different between volatility and flammability", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What is the difference between flammability and volatility, and between flammability and combustibility?", "cross_family": true }, { "answer_id": "VOC-MGT-001", "score": 0.6724543571472168, "sibling_score": 0.6724543571472168, "answer_score": null, "sibling_qid": "KOC-2025-07-0631-Q005", "sibling_text": "voc volatile organic compounds examples volatility vs flammability", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is VOC (volatile organic compound)?", "cross_family": true }, { "answer_id": "LPG-LNG-001", "score": 0.5426997542381287, "sibling_score": 0.5426997542381287, "answer_score": null, "sibling_qid": "KOC-2023-01-0129-Q002", "sibling_text": "propane and butane flash points", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "LPG vs LNG – properties, carriage and comparison", "cross_family": true } ] }, { "qid": "KOC-2026-10-2224-Q005", "text": "Shell expansion plan numbering and how to read. Number 0 ?", "family": "SOLAS", "subtopic": "Shell Plating / Strakes", "tid": "KOC-2026-10-2224", "tray": "new", "candidates": [ { "answer_id": "SHELL-PLT-A-001", "score": 0.5706000924110413, "sibling_score": 0.5706000924110413, "answer_score": 0.3231192335486412, "sibling_qid": "KOC-2024-08-0392-Q013", "sibling_text": "frame numbering shell expansion plan", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "The shell expansion plan, and how you identify a plate", "cross_family": false }, { "answer_id": "GA-GI-DWG-001", "score": 0.49917542934417725, "sibling_score": 0.49917542934417725, "answer_score": 0.33195839524269105, "sibling_qid": "KOL-2017-04-0086-Q001", "sibling_text": "1 shell exp plan", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "1. What is a shell expansion plan and where is it used?", "cross_family": true }, { "answer_id": "SHELL-PLT-A-002", "score": 0.49616771936416626, "sibling_score": 0.49616771936416626, "answer_score": null, "sibling_qid": "MUM-2026-06-3479-Q004", "sibling_text": "explain shell expansion plan", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Shell plating, strakes, and the named strakes", "cross_family": true } ] }, { "qid": "KOC-2026-10-2224-Q006", "text": "Portable foam applicator in engine room, working ,what all inside checks ?", "family": "SOLAS - Fire Safety", "subtopic": "Foam System / Monitor", "tid": "KOC-2026-10-2224", "tray": "review", "candidates": [ { "answer_id": "FOAM-SYS-P06-002", "score": 0.7363145351409912, "sibling_score": 0.7363145351409912, "answer_score": null, "sibling_qid": "KOC-2024-11-0450-Q011", "sibling_text": "engine room foam routines", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "2. Maintenance routines — fixed foam system & concentrate", "cross_family": false }, { "answer_id": "FOAM-032-P03-001", "score": 0.7170704007148743, "sibling_score": 0.7170704007148743, "answer_score": 0.5030499398708344, "sibling_qid": "KOC-2023-12-0263-Q002", "sibling_text": "fixed foam system in engine room diag explanation of working foam ratio maintenance carried out draw nozzle diag and explain", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Engine-room high-expansion fixed foam system — draw and explain", "cross_family": false }, { "answer_id": "FEXT-583-004", "score": 0.7064887881278992, "sibling_score": 0.7064887881278992, "answer_score": null, "sibling_qid": "KOL-2025-09-1066-Q015", "sibling_text": "number foam extinguisher in engine room and what is foam", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Portable foam extinguishers in the engine room — the minimum number, the 10 m rule, and the 45-litre confusion", "cross_family": false } ] }, { "qid": "KOC-2026-10-2224-Q007", "text": "⁠AIS LRIT difference and explanation ?", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "KOC-2026-10-2224", "tray": "new", "candidates": [ { "answer_id": "EPIRB-SART-002", "score": 0.3485638082027435, "sibling_score": 0.3374553918838501, "answer_score": 0.3485638082027435, "sibling_qid": "CHE-2026-05-0535-Q007", "sibling_text": "sart and ais sart", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "answer_title", "answer_title": "What is an AIS-SART and how does it differ from a radar SART?", "cross_family": true }, { "answer_id": "PI-211-003", "score": 0.3483189344406128, "sibling_score": 0.3483189344406128, "answer_score": null, "sibling_qid": "KOL-2025-12-2940-Q006", "sibling_text": "differences between pi and ir", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "PI versus insulation resistance, and why the 1-minute and 10-minute readings are compared", "cross_family": true }, { "answer_id": "AV6-P05-02", "score": 0.3444576859474182, "sibling_score": 0.3444576859474182, "answer_score": null, "sibling_qid": "KOL-2025-09-1062-Q010", "sibling_text": "aer and eeoi difference", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "AER versus EEOI — formulas, denominators and calculation period", "cross_family": true } ] }, { "qid": "KOC-2026-10-2225-Q001", "text": "How many attempt and which engine ?", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOC-2026-10-2225", "tray": "new", "candidates": [ { "answer_id": "MIP-264-003", "score": 0.5139784812927246, "sibling_score": 0.5139784812927246, "answer_score": null, "sibling_qid": "KOL-2021-12-1651-Q007", "sibling_text": "engine how", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Calculate engine power: IHP and BHP, and where each is measured", "cross_family": true }, { "answer_id": "ETP-344-P03-001", "score": 0.49597471952438354, "sibling_score": 0.49597471952438354, "answer_score": null, "sibling_qid": "KOL-2026-03-2048-Q001", "sibling_text": "type of engine done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": true }, { "answer_id": "ETP-344-P03-010", "score": 0.4887056350708008, "sibling_score": 0.4887056350708008, "answer_score": null, "sibling_qid": "CHE-2025-08-0426-Q013", "sibling_text": "function test on me engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Function tests on the main engine (ME electronic engine)", "cross_family": true } ] }, { "qid": "KOC-2026-10-2225-Q002", "text": "Difference between MC and MCC ?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "MC-C vs MEB Engine", "tid": "KOC-2026-10-2225", "tray": "review", "candidates": [ { "answer_id": "MCC-MEB-P01-001", "score": 0.750148355960846, "sibling_score": 0.750148355960846, "answer_score": 0.37816459983587264, "sibling_qid": "KOC-2026-09-2182-Q002", "sibling_text": "difference between mc mcc", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "MC-C (\"Compact\") engine — design and the main constructional differences from MC", "cross_family": false }, { "answer_id": "EGTP-P02-005", "score": 0.7130445837974548, "sibling_score": 0.7130445837974548, "answer_score": 0.39246533513069154, "sibling_qid": "KOC-2026-02-0807-Q003", "sibling_text": "diff b w mc and mcc", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "MC / MC-C / ME-C and Electronically Controlled Engines", "cross_family": false }, { "answer_id": "MCC-MEB-P02-003", "score": 0.3876123622059822, "sibling_score": null, "answer_score": 0.3876123622059822, "sibling_qid": "", "sibling_text": "conventional mc mc c versus electronic me the practical operating differences mc mc c camshaft drives the fuel pumps and the exhaust valve timing fixed or narrowly adjustable tuning is mechanical vit pump timing chain tension me me c no camshaft the engine control system engine interface control unit eicu one cylinder control unit ccu per unit the hydraulic cylinder unit hcu fuel booster plus exha", "sibling_family": "", "via": "answer_title", "answer_title": "Conventional MC / MC-C versus electronic ME — the practical operating differences", "cross_family": false } ] }, { "qid": "KOC-2026-10-2225-Q003", "text": "Draw improved high lift valve and cross ?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOC-2026-10-2225", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.6985564827919006, "sibling_score": 0.6985564827919006, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q012", "sibling_text": "draw top part of improved high lift safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "CO2-SYS-006", "score": 0.5463689565658569, "sibling_score": 0.5463689565658569, "answer_score": null, "sibling_qid": "KOC-2022-01-0048-Q002", "sibling_text": "co2 cylinder head valve cross section drawing and working", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 bottles, manifolds, pilot cylinders and valve components", "cross_family": true }, { "answer_id": "GV-330-001", "score": 0.4119618609547615, "sibling_score": null, "answer_score": 0.4119618609547615, "sibling_qid": "", "sibling_text": "draw and explain the gate valve construction main parts operation onboard use isolating valve only fully open or fully shut neverthrottled operation handwheel threaded stem wedge raised lowered between two seat faces", "sibling_family": "", "via": "answer_title", "answer_title": "Draw and explain the gate valve — construction, main parts, operation & onboard use", "cross_family": false } ] }, { "qid": "KOC-2026-10-2225-Q004", "text": "MCR and NCR & cross ?", "family": "General Marine Engineering", "subtopic": "Engine Ratings (MCR/NOR)", "tid": "KOC-2026-10-2225", "tray": "new", "candidates": [ { "answer_id": "MCR-NOR-001", "score": 0.6091095805168152, "sibling_score": 0.6091095805168152, "answer_score": 0.2591186851263046, "sibling_qid": "KOL-2026-07-4257-Q004", "sibling_text": "ncr mcr and relation each other", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "MCR and NCR — what they are, the difference, and why NCR is taken at about 85% of MCR", "cross_family": false }, { "answer_id": "ETP-344-P01-004", "score": 0.5887390375137329, "sibling_score": 0.5887390375137329, "answer_score": 0.2550704836845398, "sibling_qid": "MUM-2023-08-1058-Q001", "sibling_text": "mcr ncr", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "MCR, NCR, sea margin, load curve, heavy running — and why ~85%", "cross_family": true }, { "answer_id": "MCC-MEB-P01-001", "score": 0.44647833704948425, "sibling_score": 0.44647833704948425, "answer_score": null, "sibling_qid": "CHE-2026-08-3894-Q003", "sibling_text": "mc vs mcc", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "MC-C (\"Compact\") engine — design and the main constructional differences from MC", "cross_family": true } ] }, { "qid": "KOC-2026-10-2225-Q005", "text": "Virtual tappet ?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Virtual Tappet", "tid": "KOC-2026-10-2225", "tray": "review", "candidates": [ { "answer_id": "VTAP-001", "score": 0.6959170699119568, "sibling_score": 0.6959170699119568, "answer_score": 0.45109755694866177, "sibling_qid": "MUM-2026-07-3773-Q007", "sibling_text": "virtual tappet and purpose", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "What is the virtual tappet on a two-stroke exhaust valve, where is it, and what is it for?", "cross_family": false }, { "answer_id": "VTAP-006", "score": 0.6846988797187805, "sibling_score": 0.6846988797187805, "answer_score": 0.4033642396330833, "sibling_qid": "MUM-2026-04-1007-Q007", "sibling_text": "material and virtual tappet", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "What construction or material details may be asked alongside the virtual tappet?", "cross_family": false }, { "answer_id": "VTAP-002", "score": 0.6735257506370544, "sibling_score": 0.6735257506370544, "answer_score": 0.42370928525924684, "sibling_qid": "KOC-2026-02-1106-Q003", "sibling_text": "virtual tappet and adjustment", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How is the virtual tappet adjusted on a two-stroke main engine?", "cross_family": false } ] }, { "qid": "KOC-2026-10-2226-Q001", "text": "Er crane circuit and explain ?", "family": "Electrical - Motors & Starters", "subtopic": "Windlass / Crane Motor", "tid": "KOC-2026-10-2226", "tray": "review", "candidates": [ { "answer_id": "WIND-CRN-P01-002", "score": 0.8071167469024658, "sibling_score": 0.8071167469024658, "answer_score": 0.5728444933891296, "sibling_qid": "KOC-2023-03-1244-Q001", "sibling_text": "er crane circuit and explain", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Crane motor power & control circuit (draw and explain)", "cross_family": false }, { "answer_id": "AUX-CRANE-009", "score": 0.5340826213359833, "sibling_score": null, "answer_score": 0.5340826213359833, "sibling_qid": "", "sibling_text": "explaining one crane movement from the crane circuit diagram hoisting power path hoist pump directional control valve hoist motor winch drum raise lower the fall relief valve limits maximum system pressure overload overpressure protection", "sibling_family": "", "via": "answer_title", "answer_title": "Explaining one crane movement from the crane circuit diagram (hoisting)", "cross_family": false }, { "answer_id": "AUX-CRANE-010", "score": 0.4931009590625763, "sibling_score": null, "answer_score": 0.4931009590625763, "sibling_qid": "", "sibling_text": "function of slip rings in a cargo crane function transfer electrical power and control signal circuits across the continuously rotating slew joint fixed pedestal to rotating house construction rotating rings with fixed carbon brushes bearing on them one ring per circuit", "sibling_family": "", "via": "answer_title", "answer_title": "Function of slip rings in a cargo crane", "cross_family": false } ] }, { "qid": "KOC-2026-10-2226-Q002", "text": "HV regulations ?", "family": "Other Conventions", "subtopic": "Ballast Water Convention / BWM / BWMS", "tid": "KOC-2026-10-2226", "tray": "review", "candidates": [ { "answer_id": "HV-SYS-P06-001", "score": 0.7534303069114685, "sibling_score": 0.7534303069114685, "answer_score": 0.4404890328645706, "sibling_qid": "KOC-2024-11-1441-Q001", "sibling_text": "hv regulations", "sibling_family": "", "via": "sibling", "answer_title": "Class and regulatory requirements for marine HV systems", "cross_family": false }, { "answer_id": "T038-P01-002", "score": 0.5703731775283813, "sibling_score": 0.5703731775283813, "answer_score": null, "sibling_qid": "KOC-2022-09-1199-Q008", "sibling_text": "requirement for hv system", "sibling_family": "", "via": "sibling", "answer_title": "HV system onboard — layout, components, applications, earthing & protection", "cross_family": false }, { "answer_id": "HV-SYS-P05-001", "score": 0.5502614378929138, "sibling_score": 0.5502614378929138, "answer_score": null, "sibling_qid": "KOL-2022-05-2571-Q001", "sibling_text": "msb additional safeties regarding hv", "sibling_family": "", "via": "sibling", "answer_title": "HV switchboard (MSB): safeties, interlocks and protective features", "cross_family": false } ] }, { "qid": "KOC-2026-10-2226-Q003", "text": "Connections in a motor terminal box ?", "family": "Electrical - Motors & Starters", "subtopic": "Star-Delta Starter", "tid": "KOC-2026-10-2226", "tray": "review", "candidates": [ { "answer_id": "CONT-317-003", "score": 0.7427839040756226, "sibling_score": 0.7427839040756226, "answer_score": 0.5448740929365158, "sibling_qid": "MUM-2026-05-3170-Q005", "sibling_text": "motor came after rewinding no all terminals signs erased how will you connect", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Continuity to confirm terminal identity after overhaul or rewind", "cross_family": false }, { "answer_id": "IP-ENCL-001", "score": 0.7218596339225769, "sibling_score": 0.7218596339225769, "answer_score": null, "sibling_qid": "MUM-2026-04-2122-Q003", "sibling_text": "motor number of terminal", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "IP rating of motors — what the numbers mean", "cross_family": false }, { "answer_id": "SDC-001", "score": 0.7150188088417053, "sibling_score": 0.7150188088417053, "answer_score": null, "sibling_qid": "KOC-2021-11-0036-Q013", "sibling_text": "motor connection", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Why is the alternator star connected and the motor delta connected?", "cross_family": true } ] }, { "qid": "KOC-2026-10-2226-Q004", "text": "Why delta instead of star for continuous running ?", "family": "Electrical - Motors & Starters", "subtopic": "Star-Delta Starter", "tid": "KOC-2026-10-2226", "tray": "review", "candidates": [ { "answer_id": "SDST-B-001", "score": 0.6865261793136597, "sibling_score": 0.6865261793136597, "answer_score": 0.286760276556015, "sibling_qid": "MUM-2026-06-3611-Q007", "sibling_text": "star delta is not changing to delta reason", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Explain the star-delta control circuit - timer, interlocks, changeover and how the switching point is chosen.", "cross_family": false }, { "answer_id": "SDST-A-001", "score": 0.6479150056838989, "sibling_score": 0.6479150056838989, "answer_score": null, "sibling_qid": "MUM-2026-06-3568-Q002", "sibling_text": "star delta change not changing over", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false }, { "answer_id": "SDST-C-001", "score": 0.5542719960212708, "sibling_score": 0.5542719960212708, "answer_score": 0.28498257994651793, "sibling_qid": "KOC-2025-11-1648-Q008", "sibling_text": "what will happen if it does not change to delta", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Star-delta faults - stuck in star, both contactors in, dead after changeover, symptoms and safe action.", "cross_family": false } ] }, { "qid": "KOC-2026-10-2226-Q005", "text": "AVR droop ?", "family": "Electrical - Generator & Alternator", "subtopic": "Voltage Dip / Droop", "tid": "KOC-2026-10-2226", "tray": "review", "candidates": [ { "answer_id": "AVRD-618-001", "score": 0.712759792804718, "sibling_score": 0.712759792804718, "answer_score": 0.37658026218414303, "sibling_qid": "KOC-2022-07-1186-Q004", "sibling_text": "avr droop", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "What is AVR droop, and why is it required?", "cross_family": false }, { "answer_id": "DROOP-004", "score": 0.38486792147159576, "sibling_score": null, "answer_score": 0.38486792147159576, "sibling_qid": "", "sibling_text": "avr generator droop sharing reactive kvar avr droop terminal voltage falls slightly as reactive lagging load rises purpose share kvar between paralleled alternators prevents circulating reactive currents", "sibling_family": "", "via": "answer_title", "answer_title": "AVR / generator droop — sharing reactive kVAr", "cross_family": false }, { "answer_id": "AVRD-618-003", "score": 0.3617817789316177, "sibling_score": null, "answer_score": 0.3617817789316177, "sibling_qid": "", "sibling_text": "how do you adjust the avr droop and what is the setting commission droop only under the fitted maker s manual and approved ship procedure by authorised personnel confirm the droop ct specified phase polarity rating and secondary connections first", "sibling_family": "", "via": "answer_title", "answer_title": "How do you adjust the AVR droop, and what is the setting?", "cross_family": false } ] }, { "qid": "KOC-2026-10-2226-Q006", "text": "How is initial droop set ?", "family": "Automation & Controls", "subtopic": "Droop", "tid": "KOC-2026-10-2226", "tray": "new", "candidates": [ { "answer_id": "DROOP-001", "score": 0.565281331539154, "sibling_score": 0.565281331539154, "answer_score": 0.27969118654727937, "sibling_qid": "KOL-2026-09-4299-Q005", "sibling_text": "droop setting", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Governor / speed droop — what, why, setting and formula", "cross_family": false }, { "answer_id": "GOV-P03-002", "score": 0.44425252079963684, "sibling_score": 0.44425252079963684, "answer_score": 0.26965291053056717, "sibling_qid": "KOL-2024-06-1781-Q004", "sibling_text": "droop in governor", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Droop, isochronous operation and load sharing", "cross_family": false }, { "answer_id": "DROOP-002", "score": 0.4389628469944, "sibling_score": 0.4389628469944, "answer_score": null, "sibling_qid": "KOL-2022-10-1925-Q003", "sibling_text": "droop characteristics", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Speed-droop characteristic — the curve and what it shows", "cross_family": false } ] }, { "qid": "KOC-2026-10-2226-Q008", "text": "SCADA ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "PLC", "tid": "KOC-2026-10-2226", "tray": "review", "candidates": [ { "answer_id": "EPC-P03-005", "score": 0.768576443195343, "sibling_score": 0.768576443195343, "answer_score": 0.5146461069583893, "sibling_qid": "KOC-2025-01-1482-Q004", "sibling_text": "scada", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is SCADA — where is it used onboard, and what is an HMI?", "cross_family": false }, { "answer_id": "EPC-P03-001", "score": 0.6816471219062805, "sibling_score": 0.6816471219062805, "answer_score": null, "sibling_qid": "KOC-2025-01-1460-Q007", "sibling_text": "plc scada", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a PLC? Where is it used onboard, what are its advantages, and how does it differ from a conventional relay control panel?", "cross_family": false }, { "answer_id": "AUC-ALM-02", "score": 0.3893894761800766, "sibling_score": null, "answer_score": 0.3893894761800766, "sibling_qid": "", "sibling_text": "explain the architecture and common functions of an integrated shipboard automation monitoring and alarm system including pms ias interfaces and a representative alarm circuit ias architecture bottom up field devices remote i o redundant controllers plc dcs dual redundant control network operator workstations ecr bridge alarm extension bams historian and remote access field level pt100s thermocoup", "sibling_family": "", "via": "answer_title", "answer_title": "Explain the architecture and common functions of an integrated shipboard automation, monitoring and alarm system, including PMS/IAS interfaces and a representative alarm circuit.", "cross_family": false } ] }, { "qid": "KOC-2026-10-2226-Q009", "text": "Logic diagram ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "PLC", "tid": "KOC-2026-10-2226", "tray": "review", "candidates": [ { "answer_id": "EPC-P03-004", "score": 0.7193248867988586, "sibling_score": 0.7193248867988586, "answer_score": 0.4616768479347229, "sibling_qid": "KOC-2026-08-2115-Q015", "sibling_text": "ladder logic diagram", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is ladder logic? Explain a ladder diagram and ladder programming with a simple example.", "cross_family": false }, { "answer_id": "WIDAS-SMK-003", "score": 0.6670796871185303, "sibling_score": 0.6670796871185303, "answer_score": null, "sibling_qid": "KOC-2024-06-1365-Q014", "sibling_text": "diagram", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "WIDAS arrangement — sensors, levels, panel and repeater", "cross_family": true }, { "answer_id": "ISB-435-003", "score": 0.66432785987854, "sibling_score": 0.66432785987854, "answer_score": null, "sibling_qid": "KOC-2025-11-1977-Q007", "sibling_text": "diagram how", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Intermediate shaft bearing — lubrication, cooling, cross-section and parts", "cross_family": true } ] }, { "qid": "KOC-2026-10-2227-Q001", "text": "Thermal expansion valve internal and external differences ?", "family": "Refrigeration & AC", "subtopic": "TEV / TXV", "tid": "KOC-2026-10-2227", "tray": "review", "candidates": [ { "answer_id": "TEV-TXV-003", "score": 0.7349516749382019, "sibling_score": 0.7349516749382019, "answer_score": 0.4882133573293686, "sibling_qid": "KOC-2026-04-1125-Q006", "sibling_text": "internal and external equilizing thermostatic expansion valve difference", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Equalizing line — internal vs external equalized TEV", "cross_family": false }, { "answer_id": "TEV-TXV-001", "score": 0.6005519032478333, "sibling_score": 0.6005519032478333, "answer_score": 0.4408411979675293, "sibling_qid": "MUM-2022-12-1037-Q006", "sibling_text": "types of expansion valve", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Types of expansion valve", "cross_family": false }, { "answer_id": "TEV-TXV-002", "score": 0.597052276134491, "sibling_score": 0.597052276134491, "answer_score": null, "sibling_qid": "MUM-2026-05-3310-Q003", "sibling_text": "what thermodynamic process in expansion valve", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "TEV / TXV — purpose, construction, location and working", "cross_family": false } ] }, { "qid": "KOC-2026-10-2227-Q002", "text": "FWG non return valves ?", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "KOC-2026-10-2227", "tray": "new", "candidates": [ { "answer_id": "SDNR-SDR-002", "score": 0.5944816470146179, "sibling_score": 0.5944816470146179, "answer_score": 0.45687289237976075, "sibling_qid": "KOC-2024-09-1862-Q004", "sibling_text": "draw screw down non return valve", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Draw and explain a screw-down non-return (SDNR) valve -- construction and working", "cross_family": true }, { "answer_id": "SDNR-SDR-004", "score": 0.5698024034500122, "sibling_score": 0.5698024034500122, "answer_score": 0.4669741690158844, "sibling_qid": "KOL-2024-09-3711-Q003", "sibling_text": "spring loaded non return globe valve where use in engine room", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Spring-loaded spindleless non-return globe valve -- working principle and engine-room use", "cross_family": true }, { "answer_id": "JCW-SYS-008", "score": 0.5547648072242737, "sibling_score": 0.5547648072242737, "answer_score": null, "sibling_qid": "KOC-2025-03-1031-Q026", "sibling_text": "jcw non flow alarm", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "What is the jacket cooling-water no-flow alarm", "cross_family": false } ] }, { "qid": "KOC-2026-10-2227-Q003", "text": "Tube and shell heat exchanger ?", "family": "Heat Exchangers & Coolers", "subtopic": "Shell and Tube", "tid": "KOC-2026-10-2227", "tray": "review", "candidates": [ { "answer_id": "STHX-001", "score": 0.7930110692977905, "sibling_score": 0.7930110692977905, "answer_score": 0.5686160296201705, "sibling_qid": "MUM-2026-05-3327-Q008", "sibling_text": "shell and tube heat exchanger tube construction", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "STHX-01 — Construction, parts, materials, tube fitting, pass arrangement and flow", "cross_family": false }, { "answer_id": "STHX-006", "score": 0.7771052718162537, "sibling_score": 0.7771052718162537, "answer_score": null, "sibling_qid": "CHE-2026-08-0670-Q006", "sibling_text": "heat exchanger overhaul shell n tube", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "STHX-06 — Cleaning, descaling, inspection, maintenance and precautions", "cross_family": false }, { "answer_id": "STHX-005", "score": 0.7443744540214539, "sibling_score": 0.7443744540214539, "answer_score": null, "sibling_qid": "KOL-2021-07-0522-Q007", "sibling_text": "shell and tube type heat exchanger tube replacement what all tools", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "STHX-05 — Damaged-tube removal, tube renewal, retubing tools and procedure", "cross_family": false } ] }, { "qid": "KOC-2026-10-2227-Q004", "text": "Performance low with sea water outlet temp high and low reasons for both ?", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "KOC-2026-10-2227", "tray": "new", "candidates": [ { "answer_id": "JCW-SYS-003", "score": 0.5872467160224915, "sibling_score": 0.5872467160224915, "answer_score": 0.4404883742332458, "sibling_qid": "MUM-2026-06-3420-Q007", "sibling_text": "me sea water cooled temp starting to rise your actions", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "ME jacket-water temperature is rising on all units and will not hold setpoint - reasons, your actions as 2/E, and telling which side of the cooler is leaking", "cross_family": false }, { "answer_id": "ACJCW-010", "score": 0.5364499688148499, "sibling_score": 0.5364499688148499, "answer_score": 0.49712930023670193, "sibling_qid": "MUM-2025-08-1592-Q005", "sibling_text": "sea water temp relation", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Effect of sea-water temperature on cooler performance", "cross_family": false }, { "answer_id": "JCW-SYS-002", "score": 0.5155223608016968, "sibling_score": 0.5155223608016968, "answer_score": null, "sibling_qid": "KOL-2017-04-3049-Q002", "sibling_text": "jw inlet temp fluctuating what to do", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "The ME jacket-water controller has failed, or inlet temperature is fluctuating - immediate action and how you resolve it", "cross_family": false } ] }, { "qid": "KOC-2026-10-2227-Q005", "text": "Aux eng thrust pad bearing clearance ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Thrust Bearing", "tid": "KOC-2026-10-2227", "tray": "review", "candidates": [ { "answer_id": "THR-BRG-A-001", "score": 0.7516167759895325, "sibling_score": 0.7516167759895325, "answer_score": 0.5370542138814925, "sibling_qid": "KOL-2021-08-3446-Q004", "sibling_text": "how to take thrust bearing clearance in main engine is thrust bearing also present in aux engine aux engine thrust bearing position and function done with orals", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you check, measure, limit and adjust main-engine thrust bearing clearance?", "cross_family": false }, { "answer_id": "AE-CSB-346-003", "score": 0.7075430154800415, "sibling_score": 0.7075430154800415, "answer_score": 0.5414774805307389, "sibling_qid": "KOC-2023-01-1806-Q004", "sibling_text": "auxiliary engine thrust bearing clearance check", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Checking / measuring auxiliary-engine thrust-bearing clearance (end float)", "cross_family": true }, { "answer_id": "THRUST-PC-003", "score": 0.558475387096405, "sibling_score": null, "answer_score": 0.558475387096405, "sibling_qid": "", "sibling_text": "taking the thrust clearance without removing the block clearance total axial float collar to pads ahead and astern share it engine stopped on turning gear", "sibling_family": "", "via": "answer_title", "answer_title": "Taking the thrust clearance (without removing the block)", "cross_family": false } ] }, { "qid": "KOC-2026-10-2227-Q006", "text": "Aux engine bottom end bearing clearance ?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Decarb Checks / Connecting Rod / Bottom End Bearing", "tid": "KOC-2026-10-2227", "tray": "review", "candidates": [ { "answer_id": "AECR-651-004", "score": 0.7988601922988892, "sibling_score": 0.7988601922988892, "answer_score": 0.5341757416725158, "sibling_qid": "MUM-2026-06-3370-Q002", "sibling_text": "bottom end bearing clearance of auxiliary engines without removing crankcase doors", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "How do you inspect the bottom-end bearing, and how do you take the AE big-end clearance without removing it?", "cross_family": false }, { "answer_id": "AE-CRP-007", "score": 0.774501383304596, "sibling_score": 0.774501383304596, "answer_score": null, "sibling_qid": "MUM-2026-09-3971-Q013", "sibling_text": "ae bottom end bearing clearance", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE big-end / bottom-end bearing — inspection, bedding, nip and crush", "cross_family": false }, { "answer_id": "BEB-B-002", "score": 0.747870147228241, "sibling_score": 0.747870147228241, "answer_score": 0.5537015259265899, "sibling_qid": "MUM-2026-05-3210-Q001", "sibling_text": "bottom end bearing clearance", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Bottom End Bearing — Clearance Measurement", "cross_family": false } ] }, { "qid": "KOC-2026-10-2227-Q007", "text": "Wildon pump cross section with valves ?", "family": "Pumps - Centrifugal & PD", "subtopic": "Hele-Shaw / Axial Piston", "tid": "KOC-2026-10-2227", "tray": "new", "candidates": [ { "answer_id": "PCD-P04-01", "score": 0.5970842242240906, "sibling_score": 0.5970842242240906, "answer_score": null, "sibling_qid": "KOC-2025-06-2067-Q011", "sibling_text": "how many valves in suction chest of bilge pump", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "01. Bilge pump — type, why not centrifugal, and the suction valve chest", "cross_family": false }, { "answer_id": "SGRS-328-006", "score": 0.5948938727378845, "sibling_score": 0.5948938727378845, "answer_score": null, "sibling_qid": "KOC-2023-07-1817-Q001", "sibling_text": "neck bush and latern ring in centrifugal pump 2 draw gate valve", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "What is the function of the neck bush and lantern ring in the ram gland?", "cross_family": false }, { "answer_id": "HSAP-583-A-001", "score": 0.5921072363853455, "sibling_score": 0.5921072363853455, "answer_score": 0.4343689799308777, "sibling_qid": "KOC-2022-07-1789-Q008", "sibling_text": "heleshaw pump cross section drawing", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Hele-Shaw pump: construction and working — draw and explain", "cross_family": false } ] }, { "qid": "KOC-2026-10-2227-Q008", "text": "Windlass hydraulic circuit ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Impedance", "tid": "KOC-2026-10-2227", "tray": "review", "candidates": [ { "answer_id": "WIND-WNCH-003", "score": 0.6792263984680176, "sibling_score": 0.6792263984680176, "answer_score": 0.5362152695655823, "sibling_qid": "MUM-2026-09-3959-Q006", "sibling_text": "variable delivery hydraulic motor in windlass how displacement is changed", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Hydraulic drive: motor, pump, circuit and line identification", "cross_family": true }, { "answer_id": "WIND-WNCH-002", "score": 0.6630994081497192, "sibling_score": 0.6630994081497192, "answer_score": null, "sibling_qid": "KOC-2025-03-1031-Q020", "sibling_text": "windlass working", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Working: how the chain is lifted and the load handled", "cross_family": true }, { "answer_id": "WIND-WNCH-010", "score": 0.6548284888267517, "sibling_score": 0.6548284888267517, "answer_score": null, "sibling_qid": "MUM-2025-02-0967-Q009", "sibling_text": "checks on windlass", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Survey prep, checks, routines and maintenance", "cross_family": true } ] }, { "qid": "KOC-2026-10-2227-Q009", "text": "Liner ohaul ?", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "KOC-2026-10-2227", "tray": "new", "candidates": [ { "answer_id": "CYL-LINER-P03-007", "score": 0.5759329199790955, "sibling_score": 0.5759329199790955, "answer_score": null, "sibling_qid": "KOL-2019-11-3289-Q003", "sibling_text": "checks on liner", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Cylinder liner checks at overhaul, decarb and under-piston inspection", "cross_family": false }, { "answer_id": "CYL-LINER-P04-002", "score": 0.5585107207298279, "sibling_score": 0.5585107207298279, "answer_score": null, "sibling_qid": "KOC-2024-08-1855-Q004", "sibling_text": "life of liner", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Judging, measuring, removing & discarding a cylinder liner", "cross_family": false }, { "answer_id": "CYL-LINER-P02-004", "score": 0.552681028842926, "sibling_score": 0.552681028842926, "answer_score": null, "sibling_qid": "KOL-2021-12-1647-Q002", "sibling_text": "liner oval in fwd and aft direction reason", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L4 · T044-PART_02-G004High", "cross_family": false } ] }, { "qid": "KOC-2026-10-2227-Q010", "text": "Pmep peak pressure and compression pressure ?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Compression / Expansion Ratio", "tid": "KOC-2026-10-2227", "tray": "review", "candidates": [ { "answer_id": "PMAX-PCOMP-BF041-006", "score": 0.7513936758041382, "sibling_score": 0.7513936758041382, "answer_score": 0.5892213106155395, "sibling_qid": "KOC-2025-10-1055-Q007", "sibling_text": "mep pcom pmax pressures", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Explain MEP, Pcomp and Pmax", "cross_family": false }, { "answer_id": "IND-CARD-B-005", "score": 0.7094213366508484, "sibling_score": 0.7094213366508484, "answer_score": null, "sibling_qid": "KOL-2024-09-1951-Q002", "sibling_text": "pcomp pmax pressure difference", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Interpreting Pmax, Pcomp and compression / expansion-line abnormalities", "cross_family": false }, { "answer_id": "MIP-264-002", "score": 0.6522588133811951, "sibling_score": 0.6522588133811951, "answer_score": null, "sibling_qid": "KOL-2025-06-1808-Q010", "sibling_text": "what is pmax and mip mean indicated pressure how to calculate mip", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Calculate MIP from the indicator / power card (spring constant, unit conversion)", "cross_family": false } ] }, { "qid": "KOC-2026-10-2227-Q011", "text": "Problems with cast iron welding ?", "family": "Workshop & Welding", "subtopic": "Cast Iron Welding", "tid": "KOC-2026-10-2227", "tray": "review", "candidates": [ { "answer_id": "WELD-B-001", "score": 0.7983575463294983, "sibling_score": 0.7983575463294983, "answer_score": 0.5069339394569397, "sibling_qid": "MUM-2026-07-3727-Q007", "sibling_text": "cast iron welding difficulties", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding & crack-repair of aluminium and cast iron, including metal stitching", "cross_family": false }, { "answer_id": "LH-ELEC-006", "score": 0.51788130402565, "sibling_score": null, "answer_score": 0.51788130402565, "sibling_qid": "", "sibling_text": "6 how would you approach a cast iron valve repair when the examiner probes welding and low hydrogen electrodes first response replace or fit a sound same size valve a welded cast iron repair is a stop gap not equal to new if welding cast iron not a plain mild steel low hydrogen rod the high carbon makes a hard brittle cracking weld", "sibling_family": "", "via": "answer_title", "answer_title": "6. How would you approach a cast-iron valve repair when the examiner probes welding and low-hydrogen electrodes?", "cross_family": false }, { "answer_id": "WELD-PATM-011", "score": 0.5020478069782257, "sibling_score": null, "answer_score": 0.5020478069782257, "sibling_qid": "", "sibling_text": "arc welding defects porosity trapped gas lost shield damp rods dirty oily surface slag inclusion slag not chipped cleaned between passes", "sibling_family": "", "via": "answer_title", "answer_title": "Arc welding defects", "cross_family": false } ] }, { "qid": "KOC-2026-10-2228-Q001", "text": "Brushless alternator draw and explain ?", "family": "Electrical - Generator & Alternator", "subtopic": "Brushless Alternator", "tid": "KOC-2026-10-2228", "tray": "review", "candidates": [ { "answer_id": "BRUSHALT-A-001", "score": 0.7530861496925354, "sibling_score": 0.7530861496925354, "answer_score": 0.5700835108757019, "sibling_qid": "KOL-2021-10-2502-Q002", "sibling_text": "brushless alternator where rotor exciter fitted how current going exciter to main rotor", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01 · Working principle of the brushless alternator / brushless excitation systemHigh", "cross_family": false }, { "answer_id": "BL-ALT-C-001", "score": 0.7194704413414001, "sibling_score": 0.7194704413414001, "answer_score": null, "sibling_qid": "KOL-2021-03-2432-Q002", "sibling_text": "brushless alternator only tell electrical advantage", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Electrical advantages of brushless excitation over brushed / static", "cross_family": false }, { "answer_id": "BL-ALT-C-002", "score": 0.5577882319688797, "sibling_score": null, "answer_score": 0.5577882319688797, "sibling_qid": "", "sibling_text": "how to identify onboard that an alternator is brushless open the exciter non drive end cover no brushes no brush boxes or springs no slip rings no carbon dust brushless defining proof no slip rings on the main rotor a visible shaft mounted rotating rectifier diode wheel plus surge suppressor", "sibling_family": "", "via": "answer_title", "answer_title": "How to identify onboard that an alternator is brushless", "cross_family": false } ] }, { "qid": "KOC-2026-10-2228-Q002", "text": "Where excitation given ?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Critical Speed / Barred RPM", "tid": "KOC-2026-10-2228", "tray": "new", "candidates": [ { "answer_id": "AVR-EXC-G-001", "score": 0.6363242864608765, "sibling_score": 0.6363242864608765, "answer_score": 0.39653557538986206, "sibling_qid": "KOL-2022-04-2556-Q003", "sibling_text": "excitation details", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "What excitation is, and the types used onboard", "cross_family": true }, { "answer_id": "AVR-EXC-H-006", "score": 0.6029766798019409, "sibling_score": 0.6029766798019409, "answer_score": 0.3629053026437759, "sibling_qid": "KOC-2025-02-1499-Q002", "sibling_text": "what s excitation", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Short AVR / excitation prompts", "cross_family": true }, { "answer_id": "BL-ALT-C-003", "score": 0.5907199382781982, "sibling_score": 0.5907199382781982, "answer_score": null, "sibling_qid": "MUM-2026-05-3239-Q010", "sibling_text": "type of excitation", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Compare excitation types: brushed / static / brushless", "cross_family": true } ] }, { "qid": "KOC-2026-10-2228-Q003", "text": "Pitch factor ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "RMS Value", "tid": "KOC-2026-10-2228", "tray": "new", "candidates": [ { "answer_id": "SPR-STERN-003", "score": 0.5428484678268433, "sibling_score": 0.5428484678268433, "answer_score": 0.44335220456123353, "sibling_qid": "KOL-2018-11-0230-Q005", "sibling_text": "propeller pitch ratio", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Propeller pitch & pitch ratio, and how it's measured", "cross_family": true }, { "answer_id": "SHAFT-CPP-002", "score": 0.5353590846061707, "sibling_score": 0.5353590846061707, "answer_score": 0.41281684041023253, "sibling_qid": "KOL-2025-03-0918-Q006", "sibling_text": "what is slip and how to calculate pitch", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "2. Propeller slip, pitch & pitch measurement", "cross_family": true }, { "answer_id": "FLP-142-P02-005", "score": 0.5300524234771729, "sibling_score": 0.5300524234771729, "answer_score": null, "sibling_qid": "KOL-2022-11-0701-Q001", "sibling_text": "factor of subdivision range", "sibling_family": "", "via": "sibling", "answer_title": "Factor of subdivision — how it is fixed (length and criterion numeral)", "cross_family": false } ] }, { "qid": "KOC-2026-10-2228-Q004", "text": "What type of insulation in ship ?", "family": "SOLAS - Fire Safety", "subtopic": "A-60 / B-Class", "tid": "KOC-2026-10-2228", "tray": "review", "candidates": [ { "answer_id": "A60-BCLASS-006", "score": 0.8239359259605408, "sibling_score": 0.8239359259605408, "answer_score": null, "sibling_qid": "KOL-2023-10-0776-Q004", "sibling_text": "insulation material of type a ship", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "A-class insulation — material, side, and the ‘formula’", "cross_family": false }, { "answer_id": "MATPROP-A-009", "score": 0.773064136505127, "sibling_score": 0.773064136505127, "answer_score": 0.5939642161130905, "sibling_qid": "MUM-2025-06-0337-Q003", "sibling_text": "insulation material of type a ship", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Ship insulation: A-class fire insulation and PU foam", "cross_family": true }, { "answer_id": "CABLE-INSUL-D-001", "score": 0.758709728717804, "sibling_score": 0.758709728717804, "answer_score": 0.4456554889678955, "sibling_qid": "KOL-2025-06-2794-Q005", "sibling_text": "types of insulation used on ship grades of insulation", "sibling_family": "", "via": "sibling", "answer_title": "Insulation: materials, classes and required properties", "cross_family": false } ] }, { "qid": "KOC-2026-10-2228-Q005", "text": "Flux leakage ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Transformer Theory", "tid": "KOC-2026-10-2228", "tray": "review", "candidates": [ { "answer_id": "XFMR-THY-G-004", "score": 0.7923442721366882, "sibling_score": 0.7923442721366882, "answer_score": 0.4215300768613815, "sibling_qid": "KOC-2026-09-2212-Q002", "sibling_text": "leakage flux", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "4. Transformer leakage flux and magnetic reluctance", "cross_family": false }, { "answer_id": "ALT-GEN-P04-009", "score": 0.7256828546524048, "sibling_score": 0.7256828546524048, "answer_score": 0.402852001786232, "sibling_qid": "KOC-2026-04-0911-Q004", "sibling_text": "flux leakages", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Flux leakage in alternators", "cross_family": true }, { "answer_id": "XFMR-A-004", "score": 0.6819422245025635, "sibling_score": 0.6819422245025635, "answer_score": null, "sibling_qid": "KOC-2025-11-1646-Q002", "sibling_text": "flux leakage lron loss", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Transformer losses and loss reduction", "cross_family": false } ] }, { "qid": "KOC-2026-10-2228-Q006", "text": "Oil transformer advantage and disadvantages ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Transformer Theory", "tid": "KOC-2026-10-2228", "tray": "review", "candidates": [ { "answer_id": "XFMR-THY-G-001", "score": 0.8042359948158264, "sibling_score": 0.8042359948158264, "answer_score": 0.47515735924243924, "sibling_qid": "KOC-2023-01-1223-Q005", "sibling_text": "advantage of oil cooled transformers", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "1. Transformer cooling: why air-cooled onboard, not oil-cooled", "cross_family": false }, { "answer_id": "XFMR-THY-D-001", "score": 0.8020815253257751, "sibling_score": 0.8020815253257751, "answer_score": 0.46436831951141355, "sibling_qid": "KOC-2025-01-1470-Q010", "sibling_text": "oil transformer adv dis adv", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Transformer — principle and working", "cross_family": false }, { "answer_id": "TFR-THY-F-004", "score": 0.4571332037448883, "sibling_score": null, "answer_score": 0.4571332037448883, "sibling_qid": "", "sibling_text": "auto transformer principle onboard application single tapped winding part common to primary and secondary energy byconduction induction no galvanic isolation primary and secondary electrically connected vs the isolation transformer", "sibling_family": "", "via": "answer_title", "answer_title": "Auto-transformer principle & onboard application", "cross_family": false } ] }, { "qid": "KOC-2026-10-2228-Q007", "text": "Effect of flux leakage in transformer ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Transformer Theory", "tid": "KOC-2026-10-2228", "tray": "review", "candidates": [ { "answer_id": "XFMR-THY-G-004", "score": 0.780457079410553, "sibling_score": 0.780457079410553, "answer_score": 0.5937414973974228, "sibling_qid": "KOC-2026-03-1730-Q006", "sibling_text": "tramsformer flux leakages int", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "4. Transformer leakage flux and magnetic reluctance", "cross_family": false }, { "answer_id": "XFMR-A-004", "score": 0.7515061497688293, "sibling_score": 0.7515061497688293, "answer_score": 0.4897930085659027, "sibling_qid": "KOC-2023-12-1314-Q004", "sibling_text": "leakage fluxes in transformer other losses in trsnsformer", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Transformer losses and loss reduction", "cross_family": false }, { "answer_id": "ALT-GEN-P04-009", "score": 0.49478852450847627, "sibling_score": null, "answer_score": 0.49478852450847627, "sibling_qid": "", "sibling_text": "flux leakage in alternators useful flux links the stator winding and produces emf leakage flux does not link the useful circuit fully leakage paths include slots tooth tips end windings air gap fringing and nearby structural parts", "sibling_family": "", "via": "answer_title", "answer_title": "Flux leakage in alternators", "cross_family": false } ] }, { "qid": "KOL-2016-05-0001-Q001", "text": "Chemical burn to Je, what will be the first action.", "family": "General Marine Engineering", "subtopic": "2/E Emergency Actions", "tid": "KOL-2016-05-0001", "tray": "new", "candidates": [ { "answer_id": "ETP-344-P03-006", "score": 0.4949744939804077, "sibling_score": 0.4949744939804077, "answer_score": null, "sibling_qid": "KOC-2022-01-0954-Q006", "sibling_text": "what causes after burning", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Afterburning — causes, indications, remedies", "cross_family": true }, { "answer_id": "FIRE-P04-01", "score": 0.4946867823600769, "sibling_score": 0.4946867823600769, "answer_score": 0.3755027920007706, "sibling_qid": "KOC-2021-07-0018-Q006", "sibling_text": "when u take rounds u saw a small fire in boller burner what is ur action answer he need to hear that there is a sand box near the boiler use that first then use portable fire extinguisher", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Small boiler/burner fire — immediate action", "cross_family": true }, { "answer_id": "BDC-P06-02", "score": 0.49393898248672485, "sibling_score": 0.49393898248672485, "answer_score": 0.42363731712102887, "sibling_qid": "KOC-2025-03-1502-Q003", "sibling_text": "battery room safeties alkaline acid fell on your face actions", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "Electrolyte splash on the body — acid versus alkaline first aid and spill handling", "cross_family": true } ] }, { "qid": "KOL-2016-05-0001-Q004", "text": "Anchor stuckef while lowering...action?", "family": "Fault Diagnosis & 2/E Actions", "subtopic": "Fault Diagnosis / 2E Action", "tid": "KOL-2016-05-0001", "tray": "new", "candidates": [ { "answer_id": "ANCH-CHN-A-006", "score": 0.5438601970672607, "sibling_score": 0.5438601970672607, "answer_score": 0.38611605316400527, "sibling_qid": "MUM-2026-07-3762-Q012", "sibling_text": "anchor chain stuck", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Holding, securing the cable for sea, and general checks", "cross_family": true }, { "answer_id": "ANCHR-B-002", "score": 0.535415768623352, "sibling_score": 0.535415768623352, "answer_score": null, "sibling_qid": "KOL-2020-10-0434-Q006", "sibling_text": "checks on anchor in dd", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Anchor & cable survey in dry dock — the systematic inspection", "cross_family": true }, { "answer_id": "ANCH-C-005", "score": 0.5211781859397888, "sibling_score": 0.5211781859397888, "answer_score": 0.4191622719168663, "sibling_qid": "KOC-2022-04-1784-Q002", "sibling_text": "anchor not heaving up reasons", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Anchor not heaving up — reasons & actions", "cross_family": true } ] }, { "qid": "KOL-2016-05-2058-Q003", "text": "Alternator safeties.", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator Protection", "tid": "KOL-2016-05-2058", "tray": "review", "candidates": [ { "answer_id": "ALT-GEN-P01-001", "score": 0.7861064076423645, "sibling_score": 0.7861064076423645, "answer_score": 0.5411092549562454, "sibling_qid": "MUM-2026-05-3046-Q005", "sibling_text": "safeties for alternator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Alternator/generator safeties and protection trips", "cross_family": false }, { "answer_id": "ALT-MAINT-A-001", "score": 0.5200184613466262, "sibling_score": null, "answer_score": 0.5200184613466262, "sibling_qid": "", "sibling_text": "routine maintenance care of a ship s alternator make safe first permit to work isolate rack out and lock off the breaker immobilise the prime mover the set is engine driven a blackout dead bus auto start can crank it prove dead discharge the windings the space heater supply is separate it stays live after the alternator breaker is open isolate it independently before touching the windings", "sibling_family": "", "via": "answer_title", "answer_title": "Routine maintenance & care of a ship’s alternator", "cross_family": false }, { "answer_id": "ALT-MTN-B-001", "score": 0.5130070775747299, "sibling_score": null, "answer_score": 0.5130070775747299, "sibling_qid": "", "sibling_text": "routine onboard alternator maintenance checks clean air path dry low pressure air blow through cooler and filters clear keep winding temperature in band insulation resistance to earth on a megger trended over time investigate a falling trend do not wait for the alarm", "sibling_family": "", "via": "answer_title", "answer_title": "Routine onboard alternator maintenance checks", "cross_family": false } ] }, { "qid": "KOL-2016-05-2058-Q004", "text": "Steering gear safeties.", "family": "Steering Gear & Hydraulics", "subtopic": "Steering Gear System", "tid": "KOL-2016-05-2058", "tray": "review", "candidates": [ { "answer_id": "SG-055-B-002", "score": 0.7998048663139343, "sibling_score": 0.7998048663139343, "answer_score": 0.5376257538795471, "sibling_qid": "MUM-2026-05-3189-Q009", "sibling_text": "steering gear safeties", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Steering-gear alarms, trips and electrical / hydraulic safeties", "cross_family": false }, { "answer_id": "STG-055-C-001", "score": 0.7758103609085083, "sibling_score": 0.7758103609085083, "answer_score": 0.5038588404655456, "sibling_qid": "KOL-2026-07-4249-Q006", "sibling_text": "safematic arrangement in steering gear", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Safematic steering gear, redundancy and the single-failure criterion", "cross_family": false }, { "answer_id": "ELEC-SAFE-006", "score": 0.5589184939861297, "sibling_score": null, "answer_score": 0.5589184939861297, "sibling_qid": "", "sibling_text": "steering gear electrical safety and motor insulation essential service duplicated supplies often one from the emergency switchboard motors have short circuit protection and an overload alarm no normal overload trip that would stop steering", "sibling_family": "", "via": "answer_title", "answer_title": "Steering gear electrical safety and motor insulation", "cross_family": false } ] }, { "qid": "KOL-2016-05-2987-Q004", "text": "Superheater,boiler and economiser safety valve setting wich is higher and why.", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2016-05-2987", "tray": "review", "candidates": [ { "answer_id": "ECON-EGB-004", "score": 0.7053300142288208, "sibling_score": 0.7053300142288208, "answer_score": 0.5137104958295822, "sibling_qid": "KOL-2025-10-3868-Q005", "sibling_text": "why economiser safety valve has highier setting than auxiliary boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Safety-valve setting after overhaul & why set higher than the boiler", "cross_family": true }, { "answer_id": "BWTEST-A-001", "score": 0.6533104181289673, "sibling_score": 0.6533104181289673, "answer_score": null, "sibling_qid": "CHE-2026-04-0500-Q005", "sibling_text": "boiler safety valve setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.6373146772384644, "sibling_score": 0.6373146772384644, "answer_score": null, "sibling_qid": "MUM-2026-03-2935-Q013", "sibling_text": "boiler safety valve setting in presence of surveyor after survey", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false } ] }, { "qid": "KOL-2016-07-0004-Q005", "text": "ORB entries other than oil entries.", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "KOL-2016-07-0004", "tray": "review", "candidates": [ { "answer_id": "OWS-ORB-006", "score": 0.7318910956382751, "sibling_score": 0.7318910956382751, "answer_score": 0.3390778452157974, "sibling_qid": "MUM-2025-09-0447-Q007", "sibling_text": "orb entries", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "6. Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-002", "score": 0.6789765954017639, "sibling_score": 0.6789765954017639, "answer_score": 0.34003220200538636, "sibling_qid": "CHE-2024-10-0509-Q002", "sibling_text": "orb entries all in detail", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "The Oil Record Book Part I — purpose, the letter codes, and how entries are made", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-004", "score": 0.5349836349487305, "sibling_score": 0.5349836349487305, "answer_score": 0.3035001516342163, "sibling_qid": "MUM-2026-08-3831-Q008", "sibling_text": "bunker entry in orb", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Weekly ORB entries — the mandatory sludge retention record, the bunker entry, and what is voluntary", "cross_family": false } ] }, { "qid": "KOL-2016-07-0005-Q001", "text": "What material is ship hull and superstructure made and why?", "family": "", "subtopic": "Scantlings", "tid": "KOL-2016-07-0005", "tray": "review", "candidates": [ { "answer_id": "STEEL-GR-001", "score": 0.6591957807540894, "sibling_score": 0.6591957807540894, "answer_score": 0.4579429656267166, "sibling_qid": "KOL-2021-04-0492-Q002", "sibling_text": "what all materials used in ship building a mild steel for hull structure aluminium for superstructure cross any other recent varieties of steel other than mild steel a for ships operating in polar waters pc class 5 and pc class 7 steel which enhance the", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Materials and steel grades for ship and hull construction", "cross_family": false }, { "answer_id": "MATPROP-A-007", "score": 0.5747170448303223, "sibling_score": 0.5747170448303223, "answer_score": null, "sibling_qid": "KOC-2021-07-0016-Q008", "sibling_text": "materials used for ship construction", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Materials for ship and engine components", "cross_family": false }, { "answer_id": "LSA-LB-A-006", "score": 0.46949601769447324, "sibling_score": null, "answer_score": 0.46949601769447324, "sibling_qid": "", "sibling_text": "lifeboat hull material and crack hole repair material grp frp laminate is standard light strong corrosion free easily repaired fire retardant resin on fire protected boats aluminium or steel less common why frp no corrosion low maintenance mouldable enclosed shape with built in buoyancy cases", "sibling_family": "", "via": "answer_title", "answer_title": "Lifeboat hull material and crack / hole repair", "cross_family": false } ] }, { "qid": "KOL-2016-07-1225-Q007", "text": "Importance of expansion tank", "family": "Heat Exchangers & Coolers", "subtopic": "Expansion Arrangement", "tid": "KOL-2016-07-1225", "tray": "new", "candidates": [ { "answer_id": "BLR-TUBE-P01-003", "score": 0.5627274513244629, "sibling_score": 0.5627274513244629, "answer_score": null, "sibling_qid": "MUM-2024-12-1098-Q001", "sibling_text": "what is there to prevent boiler tube expansion", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "02. Thermal expansion arrangements for boiler tubes", "cross_family": true }, { "answer_id": "STHX-001", "score": 0.551749050617218, "sibling_score": 0.551749050617218, "answer_score": null, "sibling_qid": "MUM-2026-06-3364-Q002", "sibling_text": "how shell and tube heat exchanger expansion is taken care", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "STHX-01 — Construction, parts, materials, tube fitting, pass arrangement and flow", "cross_family": false }, { "answer_id": "FOAM-032-P03-001", "score": 0.5438615083694458, "sibling_score": 0.5438615083694458, "answer_score": null, "sibling_qid": "KOC-2022-07-0078-Q003", "sibling_text": "high expansion for engine room drawing explain maintenance", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Engine-room high-expansion fixed foam system — draw and explain", "cross_family": true } ] }, { "qid": "KOL-2016-07-1226-Q003", "text": "thin shell bearing n thick shell bearing", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Main Bearing", "tid": "KOL-2016-07-1226", "tray": "review", "candidates": [ { "answer_id": "BRG-NOM-003", "score": 0.750848114490509, "sibling_score": 0.750848114490509, "answer_score": 0.4986049890518188, "sibling_qid": "CHE-2026-04-0522-Q002", "sibling_text": "thin shell bearing vs thick shell bearing where thick shell bearing is still used", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Thin-Shell, Bi-Metal and Tri-Metal Bearings — Construction and Why Thin-Shell", "cross_family": false }, { "answer_id": "WMAT-170-003", "score": 0.7236205339431763, "sibling_score": 0.7236205339431763, "answer_score": 0.5493009060621261, "sibling_qid": "KOL-2018-08-1402-Q002", "sibling_text": "thickshell n thinshell bearing design differences advtg", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Thin-shell and thick-shell bearings: design, advantages, developments", "cross_family": false }, { "answer_id": "BRG-NOM-002", "score": 0.6592069268226624, "sibling_score": 0.6592069268226624, "answer_score": null, "sibling_qid": "KOC-2021-07-0920-Q002", "sibling_text": "type of bearing its specialty thickness", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Ball, Roller, Radial and Axial Bearings — Choosing the Type", "cross_family": false } ] }, { "qid": "KOL-2016-07-1227-Q005", "text": "Don't rmbr Got Fn 3", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOL-2016-07-1227", "tray": "new", "candidates": [ { "answer_id": "SEEMP-123-B-001", "score": 0.5432854890823364, "sibling_score": 0.5432854890823364, "answer_score": null, "sibling_qid": "KOC-2026-03-0880-Q002", "sibling_text": "function 3 contents", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SEEMP Part III — the ship's operational carbon-intensity (CII) plan", "cross_family": true }, { "answer_id": "A6-NSEC-005", "score": 0.4891167879104614, "sibling_score": 0.4891167879104614, "answer_score": null, "sibling_qid": "MUM-2024-11-2777-Q007", "sibling_text": "seemp 3", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP — Part I, II & III", "cross_family": true }, { "answer_id": "SG-055-B-001", "score": 0.48480522632598877, "sibling_score": 0.48480522632598877, "answer_score": null, "sibling_qid": "KOL-2026-01-1156-Q006", "sibling_text": "deadman handle results passed fn3", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Emergency steering operation and the deadman handle", "cross_family": true } ] }, { "qid": "KOL-2016-07-2989-Q001", "text": "Liner siezed, how will u take out?", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "KOL-2016-07-2989", "tray": "review", "candidates": [ { "answer_id": "CYL-LINER-P02-002", "score": 0.6946602463722229, "sibling_score": 0.6946602463722229, "answer_score": null, "sibling_qid": "MUM-2026-05-3238-Q009", "sibling_text": "liner seized how to remove", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L2 · T044-PART_02-G002High", "cross_family": false }, { "answer_id": "CYL-LINER-P03-003", "score": 0.6942186951637268, "sibling_score": 0.6942186951637268, "answer_score": 0.41817049980163573, "sibling_qid": "MUM-2026-07-3848-Q001", "sibling_text": "liner seized how to remove", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Removing a stuck cylinder liner — how, and where do you jack?", "cross_family": false }, { "answer_id": "CYL-LINER-P03-008", "score": 0.5903683304786682, "sibling_score": 0.5903683304786682, "answer_score": null, "sibling_qid": "KOL-2021-12-3494-Q004", "sibling_text": "describe the procedure of removal of a liner in detail", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Main-engine cylinder liner removal — full procedure, the lifting tool, and precautions", "cross_family": false } ] }, { "qid": "KOL-2016-08-0006-Q004", "text": "Ism code in details, then he asked when additional audit hi carried out..that I don't know.", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOL-2016-08-0006", "tray": "review", "candidates": [ { "answer_id": "ISM-AUDIT-P01-002", "score": 0.7157184481620789, "sibling_score": 0.7157184481620789, "answer_score": null, "sibling_qid": "KOL-2018-09-0221-Q003", "sibling_text": "additional audits in ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM/SMS audits and verifications — types, who conducts them, intervals and validity", "cross_family": false }, { "answer_id": "ISM-SMC-B-003", "score": 0.6315433979034424, "sibling_score": 0.6315433979034424, "answer_score": null, "sibling_qid": "MUM-2026-05-3314-Q004", "sibling_text": "smc how many audits and tell me about additional audit", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "SMC audit cycle — initial, intermediate, renewal, additional", "cross_family": false }, { "answer_id": "ISM-SMCDOC-A-002", "score": 0.6160418391227722, "sibling_score": 0.6160418391227722, "answer_score": null, "sibling_qid": "KOC-2024-12-0488-Q003", "sibling_text": "types of ism audit after you get the certificate he accepted intermediate and additional for ship annual and additional for company then i said surveillance audit he didn t like it he asked what it is i told for renewing interim doc he told it s wrong", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Interim DOC — when, why, how, and how long", "cross_family": false } ] }, { "qid": "KOL-2016-08-0007-Q002", "text": "ISM manual, name few.", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOL-2016-08-0007", "tray": "new", "candidates": [ { "answer_id": "ISM-ELEM-002", "score": 0.5682552456855774, "sibling_score": 0.5682552456855774, "answer_score": 0.31500177979469296, "sibling_qid": "KOC-2026-03-0867-Q003", "sibling_text": "ism codes name", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the ISM Code?", "cross_family": false }, { "answer_id": "SMSFR-002", "score": 0.5090076923370361, "sibling_score": 0.5090076923370361, "answer_score": 0.2955220490694046, "sibling_qid": "KOL-2019-12-0365-Q002", "sibling_text": "what is sms manal under ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the Safety Management System — the SMS manual, its contents, objectives, why it is needed onboard, and the company SMS policy?", "cross_family": false }, { "answer_id": "ISMNC-002", "score": 0.5080743432044983, "sibling_score": 0.5080743432044983, "answer_score": null, "sibling_qid": "MUM-2024-09-0205-Q010", "sibling_text": "mnc is ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a major non-conformity under the ISM Code? Give the definition and name some.", "cross_family": false } ] }, { "qid": "KOL-2016-08-0008-Q002", "text": "difference between void and cofferdam", "family": "Ship Construction & Stability", "subtopic": "Cofferdam / Void Space", "tid": "KOL-2016-08-0008", "tray": "new", "candidates": [ { "answer_id": "SAC-ANODE-006", "score": 0.45327064394950867, "sibling_score": 0.45327064394950867, "answer_score": 0.3623451113700867, "sibling_qid": "KOL-2026-01-1153-Q004", "sibling_text": "why is disc type anode fitted in cofferdam location where fitted", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "Where are disc-type or tank / cofferdam anodes fitted, and are anodes fitted in product-tanker cargo tanks?", "cross_family": true }, { "answer_id": "BHD-TYPE-A-001", "score": 0.4518982470035553, "sibling_score": 0.4518982470035553, "answer_score": null, "sibling_qid": "CHE-2026-09-3907-Q001", "sibling_text": "types of bulkheads", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Bulkheads — types, classification, functions and purpose", "cross_family": false }, { "answer_id": "DBTB-A-001", "score": 0.4506168067455292, "sibling_score": 0.4506168067455292, "answer_score": null, "sibling_qid": "CHE-2026-02-0110-Q004", "sibling_text": "difference b w double hull and double bottom", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Double-bottom construction and the structural members fitted", "cross_family": false } ] }, { "qid": "KOL-2016-08-0008-Q003", "text": "anti rolling tanks", "family": "", "subtopic": "Anti-Roll Tank / Stabiliser", "tid": "KOL-2016-08-0008", "tray": "new", "candidates": [ { "answer_id": "STAB-GZ-P04-001", "score": 0.586540937423706, "sibling_score": 0.586540937423706, "answer_score": null, "sibling_qid": "KOL-2017-05-0089-Q003", "sibling_text": "reserve dynamic stability for rolling", "sibling_family": "", "via": "sibling", "answer_title": "Dynamic stability — the area under the GZ curve", "cross_family": false }, { "answer_id": "MARVS-TANK-003", "score": 0.5678655505180359, "sibling_score": 0.5678655505180359, "answer_score": null, "sibling_qid": "MUM-2026-09-3971-Q003", "sibling_text": "tanks are supported by", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "How is the cargo tank supported? (Including Moss spherical tank supports)", "cross_family": false }, { "answer_id": "BK-002", "score": 0.5305314660072327, "sibling_score": 0.5305314660072327, "answer_score": 0.3942567616701126, "sibling_qid": "KOC-2023-05-0186-Q003", "sibling_text": "bilge keel how reduce rolling", "sibling_family": "", "via": "sibling", "answer_title": "How does a bilge keel reduce rolling, and how does it relate to roll period and radius of gyration?", "cross_family": false } ] }, { "qid": "KOL-2016-08-0009-Q006", "text": "working aloft procedure.", "family": "Risk & Safety Management", "subtopic": "Permit to Work / Enclosed Space", "tid": "KOL-2016-08-0009", "tray": "new", "candidates": [ { "answer_id": "DRG-583-A-011", "score": 0.4660636782646179, "sibling_score": 0.4660636782646179, "answer_score": null, "sibling_qid": "KOC-2026-04-0915-Q005", "sibling_text": "lifeboat hoisting procedure after trying out", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Securing the boat for sea, hoisting and recovery, and fall preventer devices", "cross_family": true }, { "answer_id": "ESE-P01-003", "score": 0.4646989703178406, "sibling_score": 0.4646989703178406, "answer_score": null, "sibling_qid": "KOL-2016-05-0003-Q005", "sibling_text": "enclosed space entry procedure", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "General enclosed-space entry procedure as second engineer", "cross_family": false }, { "answer_id": "LRHR-B-008", "score": 0.45795556902885437, "sibling_score": 0.45795556902885437, "answer_score": 0.3311123326420784, "sibling_qid": "KOC-2025-02-0540-Q009", "sibling_text": "life raft launching procedure", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Take me through launching and inflating the liferaft manually.", "cross_family": true } ] }, { "qid": "KOL-2016-08-0010-Q003", "text": "Which manual is available for ism code.", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOL-2016-08-0010", "tray": "review", "candidates": [ { "answer_id": "ISM-ELEM-002", "score": 0.6627650856971741, "sibling_score": 0.6627650856971741, "answer_score": 0.3966234266757965, "sibling_qid": "MUM-2026-03-0832-Q001", "sibling_text": "ism code in detail", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the ISM Code?", "cross_family": false }, { "answer_id": "ISM-ELEM-003", "score": 0.4321928113698959, "sibling_score": null, "answer_score": 0.4321928113698959, "sibling_qid": "", "sibling_text": "elements chapters structure of the ism code part a implementation the 12 elements 1 general 1 1 definitions 1 2 objectives 1 3 application 1 4 functional requirements for an sms", "sibling_family": "", "via": "answer_title", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": false }, { "answer_id": "SOLAS-CH-007", "score": 0.4140871629118919, "sibling_score": null, "answer_score": 0.4140871629118919, "sibling_qid": "", "sibling_text": "solas chapter ix ism code and certificates", "sibling_family": "", "via": "answer_title", "answer_title": "SOLAS Chapter IX - ISM Code and certificates", "cross_family": false } ] }, { "qid": "KOL-2016-08-1229-Q002", "text": "Draw man B& w fuel pump diagram. show the flow of oil and position of suction and spill valve.", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Pump Delivery Valve", "tid": "KOL-2016-08-1229", "tray": "review", "candidates": [ { "answer_id": "FCL-P03-002", "score": 0.6811632513999939, "sibling_score": 0.6811632513999939, "answer_score": null, "sibling_qid": "KOC-2024-09-1005-Q016", "sibling_text": "man engine fuel pump lead", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "MAN B&W / MC-C / MCC fuel pump timing and lead", "cross_family": false }, { "answer_id": "FP-OVHL-006", "score": 0.6781061887741089, "sibling_score": 0.6781061887741089, "answer_score": 0.52603120803833, "sibling_qid": "MUM-2026-02-1259-Q004", "sibling_text": "which pump is used for supplying fuel oil to me", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Main-engine fuel pump — construction, working, VIT, reversing, MC vs ME-C", "cross_family": false }, { "answer_id": "FINJ-001", "score": 0.6703489422798157, "sibling_score": 0.6703489422798157, "answer_score": null, "sibling_qid": "KOC-2025-07-1926-Q003", "sibling_text": "draw and explain main engine fuel injector", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel injector — construction, working principle and general arrangement", "cross_family": false } ] }, { "qid": "KOL-2016-08-1235-Q001", "text": "Which ship , engine", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "KOL-2016-08-1235", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.7119730114936829, "sibling_score": 0.7119730114936829, "answer_score": null, "sibling_qid": "CHE-2026-04-0373-Q001S6", "sibling_text": "type of ship specification of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.6915639042854309, "sibling_score": 0.6915639042854309, "answer_score": null, "sibling_qid": "MUM-2026-04-2675-Q006S5", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "AC-VE-001", "score": 0.6838345527648926, "sibling_score": 0.6838345527648926, "answer_score": null, "sibling_qid": "MUM-2026-01-2904-Q001", "sibling_text": "what type of ship engine power and nomenclature", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Volumetric efficiency: define it, and if it drops how do you improve it (with bumping clearance)?", "cross_family": false } ] }, { "qid": "KOL-2016-08-1235-Q002", "text": "Vaccum condensor safeties", "family": "Heat Exchangers & Coolers", "subtopic": "Vacuum Distillation", "tid": "KOL-2016-08-1235", "tray": "review", "candidates": [ { "answer_id": "STHX-008", "score": 0.6950699090957642, "sibling_score": 0.6950699090957642, "answer_score": null, "sibling_qid": "KOL-2018-10-1428-Q008", "sibling_text": "dump condenser u r going to plug 5 tubes all lines are isolated what additional safety reqd", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "STHX-08 — Condensers (main / auxiliary / dump): tube attachment, testing, renewal and safety", "cross_family": false }, { "answer_id": "VAC-COND-001", "score": 0.5958784818649292, "sibling_score": 0.5958784818649292, "answer_score": null, "sibling_qid": "MUM-2022-10-2698-Q006", "sibling_text": "you had a vacuum condenser on board how does it work why not a normal condenser fitted what are safeties on same emergency scenario failure on the vac cond how to proceed while cargo discharging", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Purpose, working and thermodynamic principle of the vacuum condenser", "cross_family": true }, { "answer_id": "VAC-COND-002", "score": 0.5733196139335632, "sibling_score": 0.5733196139335632, "answer_score": null, "sibling_qid": "MUM-2026-07-3769-Q011", "sibling_text": "vacuum condenser loosed suction reason", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Low vacuum, suction loss and failure to build vacuum — the reasons", "cross_family": false } ] }, { "qid": "KOL-2016-08-2063-Q003", "text": "Ex types equipment on tankers, examples, where?", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOL-2016-08-2063", "tray": "review", "candidates": [ { "answer_id": "TNK-SAFE-BF26-003", "score": 0.682660698890686, "sibling_score": 0.682660698890686, "answer_score": null, "sibling_qid": "MUM-2025-08-0423-Q004", "sibling_text": "ex rating of equipment on deck of tanker", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What safeties, including electrical safeties and Ex ratings, are provided on the deck of a tanker?", "cross_family": false }, { "answer_id": "HAZ-EX-B-001", "score": 0.6651237607002258, "sibling_score": 0.6651237607002258, "answer_score": null, "sibling_qid": "KOL-2025-06-2788-Q005", "sibling_text": "non intrinsically safe equipments used on tankers", "sibling_family": "", "via": "sibling", "answer_title": "Intrinsically safe (Ex i) equipment — what it is, how it works, where it is used, how you identify it", "cross_family": false }, { "answer_id": "FFF-A-001", "score": 0.6314099431037903, "sibling_score": 0.6314099431037903, "answer_score": null, "sibling_qid": "KOL-2017-03-0073-Q002", "sibling_text": "fixed fire systems on board ur tanker", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fixed firefighting on deck and in the cargo area — tankers, chemical and gas carriers", "cross_family": false } ] }, { "qid": "KOL-2016-08-2065-Q004", "text": "dont rember Got fn 5 only", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOL-2016-08-2065", "tray": "new", "candidates": [ { "answer_id": "CTRL-001", "score": 0.6012223958969116, "sibling_score": 0.6012223958969116, "answer_score": null, "sibling_qid": "KOL-2021-12-2522-Q005", "sibling_text": "cascade control system full got fn 5", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Cascade control — how it works", "cross_family": true }, { "answer_id": "FP-OVHL-005", "score": 0.5505344867706299, "sibling_score": 0.5505344867706299, "answer_score": null, "sibling_qid": "KOL-2018-04-1367-Q006", "sibling_text": "5 ae fo p p 0 setting", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel pump zero setting — what it is, why, and how to set it", "cross_family": true }, { "answer_id": "NER-HV-P04-001", "score": 0.5486200451850891, "sibling_score": 0.5486200451850891, "answer_score": null, "sibling_qid": "KOL-2018-05-1376-Q009", "sibling_text": "ner use in high voltage got function 5", "sibling_family": "", "via": "sibling", "answer_title": "What an NER is, where it is used, and why it is fitted in HV systems", "cross_family": false } ] }, { "qid": "KOL-2016-08-2066-Q003", "text": "Rectifier and converter.", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Zener / Diode / Rectifier", "tid": "KOL-2016-08-2066", "tray": "review", "candidates": [ { "answer_id": "EPC-P01-03", "score": 0.7640016674995422, "sibling_score": 0.7640016674995422, "answer_score": 0.5074402749538421, "sibling_qid": "KOC-2024-09-0413-Q003", "sibling_text": "rectifiers", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Rectifiers — definition, types, and where they are used on board", "cross_family": false }, { "answer_id": "EPC-P01-04", "score": 0.7006496787071228, "sibling_score": 0.7006496787071228, "answer_score": null, "sibling_qid": "KOC-2026-05-0028-Q005", "sibling_text": "half wave full wave rectifiers with diagram", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Half-wave and full-wave rectification — working, waveforms and comparison", "cross_family": false }, { "answer_id": "VFD-INV-P02-005", "score": 0.6977329254150391, "sibling_score": 0.6977329254150391, "answer_score": 0.5471303105354309, "sibling_qid": "CHE-2026-03-0360-Q006", "sibling_text": "what is inverter and rectifier", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "How do rectifier, DC link and inverter stages convert AC to DC and DC to AC?", "cross_family": false } ] }, { "qid": "KOL-2016-08-2066-Q004", "text": "Running motor , indications of short ckt. 5 -", "family": "Electrical - Protection & Relays", "subtopic": "Circuit Fault Types", "tid": "KOL-2016-08-2066", "tray": "review", "candidates": [ { "answer_id": "IRT-C-014", "score": 0.6501990556716919, "sibling_score": 0.6501990556716919, "answer_score": 0.47260810136795045, "sibling_qid": "KOL-2019-07-2299-Q002", "sibling_text": "motor running in short ckt indication parameters normal and when in short ckt and testing by megger explain using sketch", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Detecting winding faults — open, short & continuity", "cross_family": true }, { "answer_id": "OCR-185-006", "score": 0.6172673106193542, "sibling_score": 0.6172673106193542, "answer_score": null, "sibling_qid": "KOC-2026-02-2090-Q008", "sibling_text": "short ckt protection in motor", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "If short-circuit protection fails to operate; how it is checked", "cross_family": false }, { "answer_id": "CONT-317-002", "score": 0.6111803650856018, "sibling_score": 0.6111803650856018, "answer_score": 0.49009344577789304, "sibling_qid": "KOL-2019-04-2281-Q008", "sibling_text": "induction motor is running and stopped in short circuit what are the indications of shore circuit and how to make sure that it stopped due to short circuit only", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Checking a winding for open-circuit and short-circuit faults", "cross_family": true } ] }, { "qid": "KOL-2016-08-2067-Q001", "text": "Safety in electric motor of steering gear", "family": "Electrical - Motors & Starters", "subtopic": "Single Phasing", "tid": "KOL-2016-08-2067", "tray": "review", "candidates": [ { "answer_id": "SGM-ELEC-001", "score": 0.8304114937782288, "sibling_score": 0.8304114937782288, "answer_score": 0.590518307685852, "sibling_qid": "MUM-2024-07-1436-Q006", "sibling_text": "steering gear motor safeties with respect to electrical", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What are the safeties, alarms and trips on the steering gear motor as per SOLAS — and how do you activate the safematic?", "cross_family": false }, { "answer_id": "SGM-ELEC-002", "score": 0.7974278330802917, "sibling_score": 0.7974278330802917, "answer_score": null, "sibling_qid": "MUM-2026-05-3190-Q008", "sibling_text": "steering gear motor safeties", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What type of motor is the steering gear motor, how does it differ from other engine-room motors, and how do you order one?", "cross_family": false }, { "answer_id": "SG-055-B-002", "score": 0.7962338328361511, "sibling_score": 0.7962338328361511, "answer_score": 0.600650742650032, "sibling_qid": "KOC-2026-04-1748-Q002", "sibling_text": "steering gear motor safeties", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Steering-gear alarms, trips and electrical / hydraulic safeties", "cross_family": false } ] }, { "qid": "KOL-2016-08-2068-Q001", "text": "Parametric motor.", "family": "Electrical - Motors & Starters", "subtopic": "Induction Motor (General / Working)", "tid": "KOL-2016-08-2068", "tray": "new", "candidates": [ { "answer_id": "IM-TSS-P03-FINAL-1-001", "score": 0.5892970561981201, "sibling_score": 0.5892970561981201, "answer_score": null, "sibling_qid": "CHE-2026-05-0603-Q021", "sibling_text": "speed control of motor formula 120f p", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Speed control of induction / AC motors — methods and onboard use", "cross_family": false }, { "answer_id": "DCMOT-CMU-B-001", "score": 0.5638464689254761, "sibling_score": 0.5638464689254761, "answer_score": null, "sibling_qid": "KOC-2023-07-1267-Q008", "sibling_text": "dc motor speed motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "DC motor speed control — the three methods", "cross_family": false }, { "answer_id": "PAR-ROLL-001", "score": 0.5584456324577332, "sibling_score": 0.5584456324577332, "answer_score": null, "sibling_qid": "KOL-2016-10-0015-Q003", "sibling_text": "parametric roll", "sibling_family": "", "via": "sibling", "answer_title": "01. What is parametric rolling?", "cross_family": false } ] }, { "qid": "KOL-2016-08-2068-Q010", "text": "Regional cooperation under psco", "family": "Surveys - Statutory", "subtopic": "PSC / Flag / RO / CIC / MoU", "tid": "KOL-2016-08-2068", "tray": "review", "candidates": [ { "answer_id": "PSC-SURV-P01-001", "score": 0.7961454391479492, "sibling_score": 0.7961454391479492, "answer_score": 0.41653615683317186, "sibling_qid": "KOL-2019-12-0358-Q004", "sibling_text": "regional cooperation of psc", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is a PSC MoU, and why is regional cooperation between port States required?", "cross_family": false }, { "answer_id": "PSC-RO-P02-002", "score": 0.6739661693572998, "sibling_score": 0.6739661693572998, "answer_score": null, "sibling_qid": "KOL-2016-12-0032-Q002", "sibling_text": "psc cooperation", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "How does PSC work with the flag State, RO, CIC and MoU frameworks?", "cross_family": false }, { "answer_id": "PSC-RO-P02-003", "score": 0.6484602093696594, "sibling_score": 0.6484602093696594, "answer_score": null, "sibling_qid": "KOL-2019-12-0368-Q003", "sibling_text": "reference cooperation of psc", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What gives PSC its authority to inspect, and what references are used?", "cross_family": false } ] }, { "qid": "KOL-2016-08-2993-Q005", "text": "after overhauling of improved high lift safety valve what all will you check as a second eng..and accumulation pressure test....", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2016-08-2993", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.7350178360939026, "sibling_score": 0.7350178360939026, "answer_score": null, "sibling_qid": "KOC-2026-02-1106-Q007", "sibling_text": "improved high lift safety valve overhaul and checks", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-003", "score": 0.728394091129303, "sibling_score": 0.728394091129303, "answer_score": 0.5546434700489044, "sibling_qid": "MUM-2023-03-1044-Q007", "sibling_text": "accumulation of pressure test y is it carried out a how do u know if ur safety valve is of proper size", "sibling_family": "Boilers - 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I said product carrier", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2016-09-0012", "tray": "review", "candidates": [ { "answer_id": "SOLAS12-BC-A-001", "score": 0.6856862902641296, "sibling_score": 0.6856862902641296, "answer_score": null, "sibling_qid": "NOI-2026-09-0010-Q001", "sibling_text": "type of ship car carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "SOLAS definition and scope of a bulk carrier", "cross_family": false }, { "answer_id": "LPG-LNG-009", "score": 0.6602830290794373, "sibling_score": 0.6602830290794373, "answer_score": null, "sibling_qid": "CHE-2026-04-0164-Q001", "sibling_text": "type of ship sailed lpg carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Gas-carrier fundamentals and ship-specific traps", "cross_family": false }, { "answer_id": "CPFE-583-002", "score": 0.6570838689804077, "sibling_score": 0.6570838689804077, "answer_score": null, "sibling_qid": "MUM-2026-06-3604-Q002", "sibling_text": "type of ship chemical product", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Why a submerged hydraulic pump on a product or chemical tanker — and what makes a cargo pump different", "cross_family": false } ] }, { "qid": "KOL-2016-09-0012-Q007", "text": "What happens if power goes off whike lifting mass by a crane and Centre of gravity of suspended mass from a crane (decider from po mmd )", "family": "Auxiliary Equipment", "subtopic": "Crane (ER / Provision)", "tid": "KOL-2016-09-0012", "tray": "review", "candidates": [ { "answer_id": "AUX-CRANE-002", "score": 0.7003462910652161, "sibling_score": 0.7003462910652161, "answer_score": 0.46716015636920927, "sibling_qid": "KOC-2021-09-0026-Q015", "sibling_text": "braking in crane what happens when power failure occurs", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Crane brakes, electromagnetic and hydrodynamic brakes, fail-safe arrangements, limit switches, stoppers and accumulators", "cross_family": false }, { "answer_id": "CRANE-EMBRK-004", "score": 0.6507685780525208, "sibling_score": 0.6507685780525208, "answer_score": 0.5495295524597168, "sibling_qid": "KOC-2023-03-0152-Q015", "sibling_text": "braking in crane what happens when power failure occurs", "sibling_family": "Electrical - 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If excess vacuum what effects and what to do.", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "KOL-2016-09-3001", "tray": "new", "candidates": [ { "answer_id": "FWG-RO-001", "score": 0.5668611526489258, "sibling_score": 0.5668611526489258, "answer_score": 0.4084229841828346, "sibling_qid": "MUM-2026-03-1306-Q022", "sibling_text": "why fwg is vacuum condition", "sibling_family": "Fresh Water & Domestic Systems", "via": "sibling", "answer_title": "How is vacuum created in the FWG, why does it run under vacuum, and what if the vacuum will not come?", "cross_family": true }, { "answer_id": "VAC-COND-002", "score": 0.5538056492805481, "sibling_score": 0.5538056492805481, "answer_score": 0.42076872438192364, "sibling_qid": "MUM-2026-07-3769-Q011", "sibling_text": "vacuum condenser loosed suction reason", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Low vacuum, suction loss and failure to build vacuum — the reasons", "cross_family": false }, { "answer_id": "VAC-COND-001", "score": 0.5261361598968506, "sibling_score": 0.5261361598968506, "answer_score": null, "sibling_qid": "MUM-2025-09-2396-Q005", "sibling_text": "why vaccum condition", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Purpose, working and thermodynamic principle of the vacuum condenser", "cross_family": true } ] }, { "qid": "KOL-2016-09-3003-Q004", "text": "Blr safety valve survey n adjstmnt..lip clearance n hw to measure", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2016-09-3003", "tray": "new", "candidates": [ { "answer_id": "BLR-SURV-P01-001", "score": 0.6378113627433777, "sibling_score": 0.6378113627433777, "answer_score": null, "sibling_qid": "KOC-2026-05-2142-Q008", "sibling_text": "safety valve setting in front of surveyor", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.5724064111709595, "sibling_score": 0.5724064111709595, "answer_score": null, "sibling_qid": "KOL-2026-01-2037-Q003", "sibling_text": "boiler safety valve types full bore and improved high lift and their ratio how will you adjust the lift", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-002", "score": 0.5683390498161316, "sibling_score": 0.5683390498161316, "answer_score": null, "sibling_qid": "KOL-2026-04-3945-Q006", "sibling_text": "safety valve setting after overhaul minimum gauge glass water level how much taking initial 1 3level", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Acceptance limits and durations — the accumulation limit, the maximum test periods, and the action if the limit is exceeded", "cross_family": false } ] }, { "qid": "KOL-2016-09-3005-Q004", "text": "Why lip is provided in safety valve and how to check clearance.", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2016-09-3005", "tray": "new", "candidates": [ { "answer_id": "BLR-SURV-P01-001", "score": 0.5674834847450256, "sibling_score": 0.5674834847450256, "answer_score": null, "sibling_qid": "MUM-2026-03-2589-Q003", "sibling_text": "checks on safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "MR-DS-PV-B-006", "score": 0.5363104939460754, "sibling_score": 0.5363104939460754, "answer_score": null, "sibling_qid": "KOC-2026-09-2180-Q009", "sibling_text": "full bore safety valve construction", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "6. 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Annex V (Garbage)", "via": "sibling", "answer_title": "Cargo residues and bulk-carrier garbage", "cross_family": true } ] }, { "qid": "KOL-2016-11-3955-Q005", "text": "psc inspector what all checks does in life boat davit", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Davit / Release Gear", "tid": "KOL-2016-11-3955", "tray": "review", "candidates": [ { "answer_id": "LBT-TEST-B-005", "score": 0.740421712398529, "sibling_score": 0.740421712398529, "answer_score": null, "sibling_qid": "KOC-2025-12-0740-Q005", "sibling_text": "checks on lifeboat davit after dynamic test is carried out", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Checks after the dynamic/overload load test", "cross_family": false }, { "answer_id": "LB-SURV-C-009", "score": 0.7151179909706116, "sibling_score": 0.7151179909706116, "answer_score": 0.5608181893825531, "sibling_qid": "KOL-2020-03-0406-Q005", "sibling_text": "what all things psc may check for lifeboat", "sibling_family": "SOLAS - 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Statutory", "via": "sibling", "answer_title": "What is a Recognised Organisation (RO)?", "cross_family": false }, { "answer_id": "PSC-SURV-P01-001", "score": 0.6090394854545593, "sibling_score": 0.6090394854545593, "answer_score": null, "sibling_qid": "KOL-2020-11-0435-Q007", "sibling_text": "psc regional co operation", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is a PSC MoU, and why is regional cooperation between port States required?", "cross_family": false }, { "answer_id": "PSC-RO-P02-002", "score": 0.5775302052497864, "sibling_score": 0.5775302052497864, "answer_score": null, "sibling_qid": "KOL-2016-12-0032-Q002", "sibling_text": "psc cooperation", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "How does PSC work with the flag State, RO, CIC and MoU frameworks?", "cross_family": false } ] }, { "qid": "KOL-2016-11-3956-Q004", "text": "MOB night time how to rescue", "family": "General Marine Engineering", "subtopic": "2/E Emergency Actions", "tid": "KOL-2016-11-3956", "tray": "new", "candidates": [ { "answer_id": "SCAV-323-P01-002", "score": 0.45284244418144226, "sibling_score": 0.45284244418144226, "answer_score": null, "sibling_qid": "KOC-2024-07-1845-Q004", "sibling_text": "scavenge fire during midnight actions", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Fire in one unit, engine running and cannot be stopped (Malacca Strait)", "cross_family": true }, { "answer_id": "ESE-P01-003", "score": 0.3641139268875122, "sibling_score": 0.3641139268875122, "answer_score": null, "sibling_qid": "KOC-2026-04-0915-Q006", "sibling_text": "how to deal with an unconscious person in an enclosed space how to lift him up from the space", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "General enclosed-space entry procedure as second engineer", "cross_family": true }, { "answer_id": "RB-FRB-003", "score": 0.3561527132987976, "sibling_score": 0.3561527132987976, "answer_score": null, "sibling_qid": "KOC-2025-08-0647-Q003", "sibling_text": "rescue boat safety and special arrangements", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "SOLAS/LSA Code requirements and special arrangements for a rescue boat", "cross_family": true } ] }, { "qid": "KOL-2016-11-3956-Q005", "text": "Segregated ballast tank regulations in annex-1", "family": "MARPOL - Annex I (Oil)", "subtopic": "Oil Discharge Criteria", "tid": "KOL-2016-11-3956", "tray": "new", "candidates": [ { "answer_id": "COT-14", "score": 0.6176321506500244, "sibling_score": 0.6176321506500244, "answer_score": null, "sibling_qid": "KOL-2022-10-0689-Q034", "sibling_text": "regulation for segregated ballast tank and capacity", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "SBT applicability, capacity and draught criteria", "cross_family": true }, { "answer_id": "ODC-012", "score": 0.6072614789009094, "sibling_score": 0.6072614789009094, "answer_score": null, "sibling_qid": "CHE-2026-04-0518-Q004", "sibling_text": "slop tank regulation i told him everything like 3 2 1 but he was asking more points is there about clean ballast tank segregated tank", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Slop tank — arrangement, purpose and how a discharge is actually made", "cross_family": false }, { "answer_id": "COT-13", "score": 0.6059279441833496, "sibling_score": 0.6059279441833496, "answer_score": 0.5584818214178086, "sibling_qid": "CHE-2026-03-0120-Q001", "sibling_text": "segregated ballast tank", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Segregated, clean, dedicated and open ballast", "cross_family": true } ] }, { "qid": "KOL-2016-12-0031-Q004", "text": "SART explain full details?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "EPIRB / SART", "tid": "KOL-2016-12-0031", "tray": "new", "candidates": [ { "answer_id": "A6-NSEC-005", "score": 0.47920089960098267, "sibling_score": 0.47920089960098267, "answer_score": null, "sibling_qid": "MUM-2023-12-0153-Q008", "sibling_text": "seemp explain full", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP — Part I, II & III", "cross_family": true }, { "answer_id": "SEEMP-123-B-003", "score": 0.44764459133148193, "sibling_score": 0.44764459133148193, "answer_score": null, "sibling_qid": "KOL-2026-02-1188-Q004", "sibling_text": "seemp full explain eeoi explain", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Where SEEMP fits in MARPOL Annex VI, and its certification", "cross_family": true }, { "answer_id": "WIDAS-SMK-001", "score": 0.4429834485054016, "sibling_score": 0.4429834485054016, "answer_score": null, "sibling_qid": "MUM-2025-11-0556-Q008", "sibling_text": "widas explain in detail", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "WIDAS — water ingress detection and alarm system", "cross_family": true } ] }, { "qid": "KOL-2016-12-0032-Q003", "text": "Dp system details", "family": "Automation & Controls", "subtopic": "Bridge Control of ME", "tid": "KOL-2016-12-0032", "tray": "new", "candidates": [ { "answer_id": "CTRL-TL-010", "score": 0.5459922552108765, "sibling_score": 0.5459922552108765, "answer_score": null, "sibling_qid": "KOL-2019-06-2297-Q003", "sibling_text": "dp controller", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Pneumatic control: nozzle-flapper, DP, actuators and fail-safe", "cross_family": false }, { "answer_id": "DCP-FIXED-A-001", "score": 0.511701226234436, "sibling_score": 0.511701226234436, "answer_score": null, "sibling_qid": "KOC-2022-01-0051-Q004", "sibling_text": "describe about dcp fixed system ond deck just explained general description about the system he was satisfied", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Draw and explain the fixed DCP/dry-powder deck fire-fighting system", "cross_family": true }, { "answer_id": "DCP-PPC-003", "score": 0.5044801235198975, "sibling_score": 0.5044801235198975, "answer_score": 0.3189500212669372, "sibling_qid": "KOL-2023-10-0776-Q015", "sibling_text": "details of working of dcp", "sibling_family": "SOLAS - 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Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOL-2017-01-0047-Q001", "text": "5 th attempt", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOL-2017-01-0047", "tray": "new", "candidates": [ { "answer_id": "FP-OVHL-005", "score": 0.46964892745018005, "sibling_score": 0.46964892745018005, "answer_score": null, "sibling_qid": "KOL-2018-04-1367-Q006", "sibling_text": "5 ae fo p p 0 setting", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel pump zero setting — what it is, why, and how to set it", "cross_family": true }, { "answer_id": "LLC-SURV-P02-002", "score": 0.46750327944755554, "sibling_score": 0.46750327944755554, "answer_score": null, "sibling_qid": "KOL-2022-02-0601-Q004", "sibling_text": "sheer 5", "sibling_family": "", "via": "sibling", "answer_title": "2. 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Under which convention and code?", "family": "ISM Code", "subtopic": "Risk Assessment", "tid": "KOL-2017-01-0050", "tray": "review", "candidates": [ { "answer_id": "ISM-AUD-P02-005", "score": 0.6734873652458191, "sibling_score": 0.6734873652458191, "answer_score": null, "sibling_qid": "KOL-2019-10-3279-Q003", "sibling_text": "risk assessment according to ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM and maintenance: PMS, risk assessment and critical spares", "cross_family": false }, { "answer_id": "RA-MGMT-A-001", "score": 0.6216632127761841, "sibling_score": 0.6216632127761841, "answer_score": 0.515605428814888, "sibling_qid": "KOL-2021-07-3416-Q003", "sibling_text": "risk assessment unit of risk consequences", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "What is risk, what is hazard, and what is risk assessment?", "cross_family": true }, { "answer_id": "RA-MGMT-B-001", "score": 0.6209267973899841, "sibling_score": 0.6209267973899841, "answer_score": null, "sibling_qid": "MUM-2026-08-3828-Q001", "sibling_text": "risk assessment", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "How is a shipboard risk assessment prepared and carried out?", "cross_family": false } ] }, { "qid": "KOL-2017-01-0052-Q004", "text": "how is main engine bed plate strenthened", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Bedplate / A-Frame", "tid": "KOL-2017-01-0052", "tray": "new", "candidates": [ { "answer_id": "TR-TB-PA-001", "score": 0.588470995426178, "sibling_score": 0.588470995426178, "answer_score": null, "sibling_qid": "KOL-2024-04-3686-Q003", "sibling_text": "how firing forces transmitted tie rods arrangement how fitted how crankshaft rests on bedplate how bed plate girders fitted", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Function of tie rods and the firing-load path", "cross_family": false }, { "answer_id": "CHK-330-004", "score": 0.5663797736167907, "sibling_score": 0.5035127997398376, "answer_score": 0.5663797736167907, "sibling_qid": "MUM-2026-03-1306-Q014S4", "sibling_text": "bed plate parts choking arrangement alignment of shaft intermediate shaft take out procedure", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "answer_title", "answer_title": "Chocking arrangement on the main engine bedplate seating", "cross_family": false }, { "answer_id": "ETP-344-P01-008", "score": 0.5343698859214783, "sibling_score": 0.5343698859214783, "answer_score": null, "sibling_qid": "MUM-2026-06-3538-Q009", "sibling_text": "what are the check and testing done on bed plate while running of an engine", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Verifying power — shop test, test bed, sea trial", "cross_family": false } ] }, { "qid": "KOL-2017-01-0054-Q001", "text": "what is solid ballast ?", "family": "", "subtopic": "GM / KM / KB / Metacentric", "tid": "KOL-2017-01-0054", "tray": "new", "candidates": [ { "answer_id": "BWM-D1D2-P03-001", "score": 0.4903128147125244, "sibling_score": 0.4903128147125244, "answer_score": null, "sibling_qid": "KOC-2022-09-0099-Q007", "sibling_text": "ballast d2 standard", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Regulation D-2 — ballast water performance / discharge standardHigh", "cross_family": false }, { "answer_id": "COT-14", "score": 0.47167250514030457, "sibling_score": 0.47167250514030457, "answer_score": null, "sibling_qid": "KOL-2026-07-4253-Q003", "sibling_text": "segregated ballast and and capacity", "sibling_family": "Ship Construction", "via": "sibling", "answer_title": "SBT applicability, capacity and draught criteria", "cross_family": false }, { "answer_id": "COT-13", "score": 0.45236140489578247, "sibling_score": 0.45236140489578247, "answer_score": 0.31511726826429365, "sibling_qid": "KOL-2023-09-0766-Q002", "sibling_text": "open ballast", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Segregated, clean, dedicated and open ballast", "cross_family": false } ] }, { "qid": "KOL-2017-01-0054-Q002", "text": "What was the means of auto heel correction on your ship ?", "family": "", "subtopic": "Damage Stability", "tid": "KOL-2017-01-0054", "tray": "new", "candidates": [ { "answer_id": "STAB-GZ-P01-001", "score": 0.5657961368560791, "sibling_score": 0.5657961368560791, "answer_score": null, "sibling_qid": "KOC-2022-04-0071-Q002", "sibling_text": "how does the ship return to upright position after being heeled to an angle", "sibling_family": "", "via": "sibling", "answer_title": "Draw and explain the statical stability (GZ) curve", "cross_family": false }, { "answer_id": "LOLL-P02-002", "score": 0.5498367547988892, "sibling_score": 0.5498367547988892, "answer_score": null, "sibling_qid": "KOL-2024-11-0881-Q002", "sibling_text": "angle of loll correction if your ship don t have double bottom tank", "sibling_family": "", "via": "sibling", "answer_title": "1. Correcting angle of loll — the ballasting sequence", "cross_family": false }, { "answer_id": "LOLL-P02-003", "score": 0.5257198810577393, "sibling_score": 0.5257198810577393, "answer_score": null, "sibling_qid": "KOC-2023-10-0237-Q005", "sibling_text": "angle of loll he wanted to know how does the ship heel intially before we could talk about the righting levers", "sibling_family": "", "via": "sibling", "answer_title": "2. Identifying loll from the jetty — loll versus list and heel", "cross_family": false } ] }, { "qid": "KOL-2017-01-0054-Q004", "text": "What is the means of removal of water from cargo holds ? (PCC ship)", "family": "Cargo Ops - Bulk Carriers", "subtopic": "WIDAS / Smoke Detection", "tid": "KOL-2017-01-0054", "tray": "new", "candidates": [ { "answer_id": "COT-P03-10", "score": 0.6350216269493103, "sibling_score": 0.6350216269493103, "answer_score": null, "sibling_qid": "MUM-2026-05-3224-Q002", "sibling_text": "pumping out arrangement for water ingress in cargo hold", "sibling_family": "Cargo Ops - Containers", "via": "sibling", "answer_title": "Tanker cargo-pumping arrangement — tank suction to shore manifold, with stripping and isolation", "cross_family": true }, { "answer_id": "BC-IMSBC-002", "score": 0.5739025473594666, "sibling_score": 0.5739025473594666, "answer_score": null, "sibling_qid": "MUM-2025-07-0343-Q006", "sibling_text": "uperdeck drainage provision in bulk carrier", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "2. Bulk carrier construction and structural design", "cross_family": false }, { "answer_id": "SOLAS12-BC-E-003", "score": 0.5698769092559814, "sibling_score": 0.5698769092559814, "answer_score": 0.470186972618103, "sibling_qid": "KOC-2025-07-0637-Q005", "sibling_text": "dewatering system in bulk carrier", "sibling_family": "", "via": "sibling", "answer_title": "Dewatering system / availability of pumping systems — SOLAS XII/13", "cross_family": false } ] }, { "qid": "KOL-2017-01-1260-Q003", "text": ". Why boiler safety valve spring is square?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2017-01-1260", "tray": "new", "candidates": [ { "answer_id": "MR-DS-PV-B-006", "score": 0.5804176926612854, "sibling_score": 0.5804176926612854, "answer_score": null, "sibling_qid": "KOC-2026-09-2180-Q009", "sibling_text": "full bore safety valve construction", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "6. Deck isolating valve, deck relief/safety devices, and cargo-tank pressure", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-003", "score": 0.5751772522926331, "sibling_score": 0.5751772522926331, "answer_score": null, "sibling_qid": "KOL-2023-10-1758-Q002", "sibling_text": "accumulation pressure test of safety valve calcuation for free length of spring", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "The accumulation test and the safety valve — required lift, how lift and capacity are verified, and why accumulation must stay inside the limit", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.5702947974205017, "sibling_score": 0.5702947974205017, "answer_score": null, "sibling_qid": "MUM-2026-05-3267-Q005", "sibling_text": "boiler safety valve why you required easing gear", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOL-2017-01-1265-Q003", "text": "Developments in safety valve of boiler", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2017-01-1265", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.7715074419975281, "sibling_score": 0.7715074419975281, "answer_score": null, "sibling_qid": "KOL-2021-08-1614-Q006", "sibling_text": "boiler survey interval types of safety valves improved high lift safety valve in detail", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACRV-005", "score": 0.7389913201332092, "sibling_score": 0.7389913201332092, "answer_score": null, "sibling_qid": "MUM-2026-06-3357-Q006", "sibling_text": "safety valve boiler types and construction boiler water", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.7307873368263245, "sibling_score": 0.7307873368263245, "answer_score": null, "sibling_qid": "CHE-2026-05-0647-Q007", "sibling_text": "boiler safety valve maintenance", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false } ] }, { "qid": "KOL-2017-01-1269-Q003", "text": "bumping clearnce ? how u will check and effect efficiency?", "family": "Air Compressor", "subtopic": "Reciprocating Compressor", "tid": "KOL-2017-01-1269", "tray": "new", "candidates": [ { "answer_id": "RUN-CLR-002", "score": 0.5460186004638672, "sibling_score": 0.5460186004638672, "answer_score": 0.3091690421104431, "sibling_qid": "MUM-2024-12-2263-Q003", "sibling_text": "bumping clearances adjustments three methods could answer only two", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Bumping clearance — what it is, why it matters, effects, and how it is adjusted", "cross_family": true }, { "answer_id": "BRG-NOM-004", "score": 0.5393236875534058, "sibling_score": 0.5393236875534058, "answer_score": null, "sibling_qid": "KOC-2025-10-1948-Q011", "sibling_text": "what happens if clearance increases", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bearing Nip/Crush, Clearance, and How the Shell is Held", "cross_family": true }, { "answer_id": "AC-VE-001", "score": 0.5361899733543396, "sibling_score": 0.5361899733543396, "answer_score": 0.3710927233099937, "sibling_qid": "MUM-2024-07-1083-Q010", "sibling_text": "define volumetric efficiency if drop what you do 3 methods to adjust bumping clearance", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Volumetric efficiency: define it, and if it drops how do you improve it (with bumping clearance)?", "cross_family": false } ] }, { "qid": "KOL-2017-01-1270-Q002", "text": "Type of engine", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOL-2017-01-1270", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.7997999787330627, "sibling_score": 0.7997999787330627, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.7921890020370483, "sibling_score": 0.7921890020370483, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-001", "score": 0.45207613110542294, "sibling_score": null, "answer_score": 0.45207613110542294, "sibling_qid": "", "sibling_text": "1 turbocharger type main engine vs generator engine compressor is centrifugal in both cases only the turbine type differs large slow speed main engine axial flow turbine single stage constant pressure system", "sibling_family": "", "via": "answer_title", "answer_title": "1. Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "KOL-2017-01-1270-Q016", "text": "Turbicharger lubrication system on your ship. Purpose of header tank", "family": "Turbocharger", "subtopic": "TC Bearing", "tid": "KOL-2017-01-1270", "tray": "new", "candidates": [ { "answer_id": "TURBO-CS-P03-009", "score": 0.6318597197532654, "sibling_score": 0.6318597197532654, "answer_score": null, "sibling_qid": "MUM-2026-03-1305-Q002", "sibling_text": "what type of lubrication in your ship turbocharger and why attached pump give what if pump fails how the lubrication will be done or any other means", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Lubrication arrangement: integral vs external, sealing air", "cross_family": false }, { "answer_id": "STS-P02-002", "score": 0.6306106448173523, "sibling_score": 0.6306106448173523, "answer_score": 0.5684038996696472, "sibling_qid": "MUM-2026-07-3783-Q004", "sibling_text": "why header tank", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "STS-P02-02 - Stern tube lubrication, header tank and oil properties", "cross_family": true }, { "answer_id": "STERN-P03-001", "score": 0.609439492225647, "sibling_score": 0.609439492225647, "answer_score": null, "sibling_qid": "KOL-2019-02-1440-Q007", "sibling_text": "sterntube arrangements all parts chrome liner where it is fitted purpose of header tank how oil is getting cooled", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Chrome / shaft liner: fitting, removal, grooving & wastage, and repair options", "cross_family": true } ] }, { "qid": "KOL-2017-01-1272-Q002", "text": "main air compresor difrnet frm oder oil..how.?", "family": "Air Compressor", "subtopic": "Reciprocating Compressor", "tid": "KOL-2017-01-1272", "tray": "new", "candidates": [ { "answer_id": "MAC-353-005", "score": 0.6269126534461975, "sibling_score": 0.6269126534461975, "answer_score": 0.4983848035335541, "sibling_qid": "MUM-2025-06-1134-Q001", "sibling_text": "difference between mair air compressor and ac comp lubrication system pressure", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Lubrication of the main air compressor; MAC vs A/C-compressor LO pressure", "cross_family": false }, { "answer_id": "ICAC-299-003", "score": 0.5941857099533081, "sibling_score": 0.5941857099533081, "answer_score": null, "sibling_qid": "CHE-2026-05-0632-Q008", "sibling_text": "difference between main engine air cooler and air compressor air cooler", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Arrangement, flow path and tube-vs-shell routing", "cross_family": false }, { "answer_id": "MAC-353-001", "score": 0.5772885680198669, "sibling_score": 0.5772885680198669, "answer_score": null, "sibling_qid": "MUM-2025-08-2348-Q005", "sibling_text": "main air compressor 2 switch main and slave why do we have that", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Main and slave switches on the main air compressors", "cross_family": false } ] }, { "qid": "KOL-2017-01-1275-Q001", "text": "Type of engine", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOL-2017-01-1275", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.7998000383377075, "sibling_score": 0.7998000383377075, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.7921890616416931, "sibling_score": 0.7921890616416931, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-001", "score": 0.45207613110542294, "sibling_score": null, "answer_score": 0.45207613110542294, "sibling_qid": "", "sibling_text": "1 turbocharger type main engine vs generator engine compressor is centrifugal in both cases only the turbine type differs large slow speed main engine axial flow turbine single stage constant pressure system", "sibling_family": "", "via": "answer_title", "answer_title": "1. Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "KOL-2017-01-1840-Q002", "text": "How is the crank-shaft of a large, slow speed deisel engine manufactured ? How are the different parts joined and connected ? What is the material used ?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft Material", "tid": "KOL-2017-01-1840", "tray": "review", "candidates": [ { "answer_id": "CRANK-217-001", "score": 0.6777213215827942, "sibling_score": 0.6777213215827942, "answer_score": 0.5001335203647613, "sibling_qid": "MUM-2026-05-3266-Q006", "sibling_text": "material of crankshaft", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankshaft types and how the type is identified", "cross_family": false }, { "answer_id": "HT-A-001", "score": 0.6619901061058044, "sibling_score": 0.6619901061058044, "answer_score": null, "sibling_qid": "MUM-2026-05-3334-Q006", "sibling_text": "crankshaft material and heat treatment", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Heat treatment: what it is, the main methods, and why it is done", "cross_family": false }, { "answer_id": "CRANK-217-002", "score": 0.5869102478027344, "sibling_score": 0.5869102478027344, "answer_score": 0.545604819059372, "sibling_qid": "MUM-2026-05-3163-Q008", "sibling_text": "how is semi built crankshaft constructed some cross questions like advantages over fully built and where these type of crankshaft is seen", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Semi-built crankshaft: construction, fitting and comparison", "cross_family": false } ] }, { "qid": "KOL-2017-01-2094-Q001", "text": "Draw dol starter", "family": "Electrical - Motors & Starters", "subtopic": "DOL Starter", "tid": "KOL-2017-01-2094", "tray": "review", "candidates": [ { "answer_id": "STR-DEC-A-001", "score": 0.763009786605835, "sibling_score": 0.763009786605835, "answer_score": null, "sibling_qid": "KOC-2025-03-1511-Q002", "sibling_text": "draw dol starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "STARTER-DEC-B-002", "score": 0.6368409991264343, "sibling_score": 0.6368409991264343, "answer_score": null, "sibling_qid": "KOL-2026-04-2984-Q002", "sibling_text": "explain dol starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Why a starter is needed & reducing starting current", "cross_family": false }, { "answer_id": "SDST-A-001", "score": 0.6309707164764404, "sibling_score": 0.6309707164764404, "answer_score": 0.30213701277971267, "sibling_qid": "KOC-2024-10-1415-Q002", "sibling_text": "draw and explain star dela starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false } ] }, { "qid": "KOL-2017-01-2095-Q001", "text": "brushless alternator explain? how the excitation inside the alternator convertor changes ac to dc? why we use full wave rectifier what are the components in that? function of diode? why we cant put small dc alternator instead of ac and we can remove rectifier system?", "family": "Electrical - Generator & Alternator", "subtopic": "Brushless Alternator", "tid": "KOL-2017-01-2095", "tray": "review", "candidates": [ { "answer_id": "DIODESO-002", "score": 0.7530253529548645, "sibling_score": 0.7530253529548645, "answer_score": 0.6046266973018646, "sibling_qid": "CHE-2026-04-0374-Q006", "sibling_text": "did you sail in brushless alternator a what is diodes b why dc supply to exitation why not ac", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Explain the rotating diodes in a brushless alternator and the problems that arise in the brushless excitation system, including diode short circuit", "cross_family": false }, { "answer_id": "BRUSHALT-A-001", "score": 0.721203625202179, "sibling_score": 0.721203625202179, "answer_score": null, "sibling_qid": "KOL-2021-10-2502-Q002", "sibling_text": "brushless alternator where rotor exciter fitted how current going exciter to main rotor", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01 · Working principle of the brushless alternator / brushless excitation systemHigh", "cross_family": false }, { "answer_id": "ALT-GEN-P03-003", "score": 0.5930593580007553, "sibling_score": null, "answer_score": 0.5930593580007553, "sibling_qid": "", "sibling_text": "brushless alternator advantages and brushed vs brushless comparison brushed dc excitation reaches rotor through brushes and slip rings brushless avr feeds exciter field exciter output is rectified by rotating diodes to feed main rotor", "sibling_family": "", "via": "answer_title", "answer_title": "Brushless alternator advantages and brushed vs brushless comparison", "cross_family": false } ] }, { "qid": "KOL-2017-01-2100-Q002", "text": "Alternator safeties ?", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator Protection", "tid": "KOL-2017-01-2100", "tray": "review", "candidates": [ { "answer_id": "ALT-GEN-P01-001", "score": 0.7861064076423645, "sibling_score": 0.7861064076423645, "answer_score": 0.5411092549562454, "sibling_qid": "MUM-2026-05-3046-Q005", "sibling_text": "safeties for alternator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Alternator/generator safeties and protection trips", "cross_family": false }, { "answer_id": "ALT-MAINT-A-001", "score": 0.5200184613466262, "sibling_score": null, "answer_score": 0.5200184613466262, "sibling_qid": "", "sibling_text": "routine maintenance care of a ship s alternator make safe first permit to work isolate rack out and lock off the breaker immobilise the prime mover the set is engine driven a blackout dead bus auto start can crank it prove dead discharge the windings the space heater supply is separate it stays live after the alternator breaker is open isolate it independently before touching the windings", "sibling_family": "", "via": "answer_title", "answer_title": "Routine maintenance & care of a ship’s alternator", "cross_family": false }, { "answer_id": "ALT-MTN-B-001", "score": 0.5130070775747299, "sibling_score": null, "answer_score": 0.5130070775747299, "sibling_qid": "", "sibling_text": "routine onboard alternator maintenance checks clean air path dry low pressure air blow through cooler and filters clear keep winding temperature in band insulation resistance to earth on a megger trended over time investigate a falling trend do not wait for the alarm", "sibling_family": "", "via": "answer_title", "answer_title": "Routine onboard alternator maintenance checks", "cross_family": false } ] }, { "qid": "KOL-2017-01-2101-Q002", "text": "Alternator safeties ?", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator Protection", "tid": "KOL-2017-01-2101", "tray": "review", "candidates": [ { "answer_id": "ALT-GEN-P01-001", "score": 0.7861064076423645, "sibling_score": 0.7861064076423645, "answer_score": 0.5411092549562454, "sibling_qid": "MUM-2026-05-3046-Q005", "sibling_text": "safeties for alternator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Alternator/generator safeties and protection trips", "cross_family": false }, { "answer_id": "ALT-MAINT-A-001", "score": 0.5200184613466262, "sibling_score": null, "answer_score": 0.5200184613466262, "sibling_qid": "", "sibling_text": "routine maintenance care of a ship s alternator make safe first permit to work isolate rack out and lock off the breaker immobilise the prime mover the set is engine driven a blackout dead bus auto start can crank it prove dead discharge the windings the space heater supply is separate it stays live after the alternator breaker is open isolate it independently before touching the windings", "sibling_family": "", "via": "answer_title", "answer_title": "Routine maintenance & care of a ship’s alternator", "cross_family": false }, { "answer_id": "ALT-MTN-B-001", "score": 0.5130070775747299, "sibling_score": null, "answer_score": 0.5130070775747299, "sibling_qid": "", "sibling_text": "routine onboard alternator maintenance checks clean air path dry low pressure air blow through cooler and filters clear keep winding temperature in band insulation resistance to earth on a megger trended over time investigate a falling trend do not wait for the alarm", "sibling_family": "", "via": "answer_title", "answer_title": "Routine onboard alternator maintenance checks", "cross_family": false } ] }, { "qid": "KOL-2017-01-2104-Q002", "text": "Alternator safeties", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator Protection", "tid": "KOL-2017-01-2104", "tray": "review", "candidates": [ { "answer_id": "ALT-GEN-P01-001", "score": 0.7865256667137146, "sibling_score": 0.7865256667137146, "answer_score": 0.541239207983017, "sibling_qid": "MUM-2026-05-3046-Q005", "sibling_text": "safeties for alternator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. 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General & Compliance", "via": "sibling", "answer_title": "Bunker Line Pressure Test — medium, pressure, holding, draining and records", "cross_family": true } ] }, { "qid": "KOL-2017-02-1842-Q001", "text": "types of bed plates n cross questions", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Bedplate / A-Frame", "tid": "KOL-2017-02-1842", "tray": "review", "candidates": [ { "answer_id": "FWFB-P02-007", "score": 0.696441113948822, "sibling_score": 0.696441113948822, "answer_score": null, "sibling_qid": "MUM-2026-03-2952-Q007", "sibling_text": "what type of bedplate", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Transverse and longitudinal girders: arrangement and purpose", "cross_family": false }, { "answer_id": "BED-CHOCK-001", "score": 0.5407087206840515, "sibling_score": 0.5407087206840515, "answer_score": null, "sibling_qid": "MUM-2023-08-0952-Q004", "sibling_text": "how to fix bed plate on ship", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "How is the main-engine bedplate fixed to the ship's structure?", "cross_family": false }, { "answer_id": "FWFB-P02-001", "score": 0.5150303244590759, "sibling_score": 0.5150303244590759, "answer_score": null, "sibling_qid": "MUM-2026-02-0753-Q003", "sibling_text": "guset plate coffin plate margin plate", "sibling_family": "", "via": "sibling", "answer_title": "Brackets, knees and gusset plates", "cross_family": false } ] }, { "qid": "KOL-2017-02-1842-Q005", "text": "what all checks to b made on new main engine liner before fitting. he wanted to hear nox technical code. hw to make sure honing of the liner is Gud enough.", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "KOL-2017-02-1842", "tray": "review", "candidates": [ { "answer_id": "CYL-LINER-P03-006", "score": 0.7125051617622375, "sibling_score": 0.7125051617622375, "answer_score": 0.5713526427745819, "sibling_qid": "KOL-2017-04-1289-Q008", "sibling_text": "removing old liner procedure of main engine and checks br fitting new liner", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Fitting a new cylinder liner — checks and precautions during renewal and installation", "cross_family": false }, { "answer_id": "CYL-LINER-P03-007", "score": 0.6972344517707825, "sibling_score": 0.6972344517707825, "answer_score": 0.5326467037200927, "sibling_qid": "KOL-2018-08-1411-Q003", "sibling_text": "liner checks during overhaul", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Cylinder liner checks at overhaul, decarb and under-piston inspection", "cross_family": false }, { "answer_id": "CYL-LINER-P01-002", "score": 0.6841451525688171, "sibling_score": 0.6841451525688171, "answer_score": null, "sibling_qid": "CHE-2026-05-0624-Q006", "sibling_text": "how will you measure main engine liner calibration and what are all pre check to do", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Getting true readings: tool, position and temperature", "cross_family": false } ] }, { "qid": "KOL-2017-02-1843-Q005", "text": "5,Saftey valve lifting ,at wat pressure", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2017-02-1843", "tray": "review", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-002", "score": 0.7178758382797241, "sibling_score": 0.7178758382797241, "answer_score": null, "sibling_qid": "KOL-2026-02-3922-Q005", "sibling_text": "what is lifting of safety valve tell only within 3 percent of designated set pressure nothing else", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Acceptance limits and durations — the accumulation limit, the maximum test periods, and the action if the limit is exceeded", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.6842157244682312, "sibling_score": 0.6842157244682312, "answer_score": null, "sibling_qid": "KOL-2026-09-4310-Q005", "sibling_text": "what is the lifting pressure of boiler safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACRV-005", "score": 0.628612756729126, "sibling_score": 0.628612756729126, "answer_score": null, "sibling_qid": "CHE-2026-03-0497-Q003", "sibling_text": "what is the pressure difference between two safety valve set pressure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": false } ] }, { "qid": "KOL-2017-02-2112-Q002", "text": "Pole and freq relation", "family": "Electrical - Generator & Alternator", "subtopic": "Frequency", "tid": "KOL-2017-02-2112", "tray": "new", "candidates": [ { "answer_id": "ALT-GEN-P04-007", "score": 0.6367770433425903, "sibling_score": 0.6367770433425903, "answer_score": 0.43164498209953306, "sibling_qid": "CHE-2026-04-0368-Q005", "sibling_text": "number of poles how to calculate why poles are increased", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Frequency, poles, speed and 50/60 Hz relation", "cross_family": false }, { "answer_id": "IM-TSS-P01-004", "score": 0.5437563061714172, "sibling_score": 0.5437563061714172, "answer_score": 0.39520615339279175, "sibling_qid": "KOL-2025-09-2854-Q013", "sibling_text": "how to find number of pole", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Synchronous speed, poles and Ns = 120 f / P", "cross_family": true }, { "answer_id": "AR-263-004", "score": 0.5429033041000366, "sibling_score": 0.5429033041000366, "answer_score": null, "sibling_qid": "KOL-2018-06-2205-Q004", "sibling_text": "what is interpole what is armature reactance", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "What are interpoles / compensating windings, and how do they help?", "cross_family": false } ] }, { "qid": "KOL-2017-02-2112-Q007", "text": "Main lube oil pump overhaul procedure ? What precautions.? KEY ANS : LOCK OUT TAG OUT PROCEDURE Where lock out is done ? how is the lockout device. ? Where is connection for space heater given ?how to disconnect it ?", "family": "Risk & Safety Management", "subtopic": "LOTO / Isolation Permit", "tid": "KOL-2017-02-2112", "tray": "review", "candidates": [ { "answer_id": "RA-MGMT-B-001", "score": 0.6654306054115295, "sibling_score": 0.6654306054115295, "answer_score": null, "sibling_qid": "MUM-2026-04-2686-Q005", "sibling_text": "condition of lube oil bearingplay any hotspot with all safety like risk assessment work permit isolate", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "How is a shipboard risk assessment prepared and carried out?", "cross_family": false }, { "answer_id": "SCAV-323-P02-006", "score": 0.6176872849464417, "sibling_score": 0.6176872849464417, "answer_score": null, "sibling_qid": "KOC-2024-07-1845-Q005", "sibling_text": "needs to mention close scavenge drain valve as a safety measures rest all comes after it isolating of unit procedures increasing of cyl lubrication how to do that", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Scavenge drain analysis and high scavenge-drain level", "cross_family": true }, { "answer_id": "PR-SAFE-A-003", "score": 0.6157475709915161, "sibling_score": 0.6157475709915161, "answer_score": null, "sibling_qid": "KOC-2023-12-1314-Q007", "sibling_text": "pump room safeties lighting and ventilation inter lock", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Pump-room ventilation requirements and interlocks", "cross_family": true } ] }, { "qid": "KOL-2017-02-3033-Q003", "text": "Fwg vaccum less,why", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "KOL-2017-02-3033", "tray": "new", "candidates": [ { "answer_id": "FWG-RO-001", "score": 0.5504989624023438, "sibling_score": 0.5504989624023438, "answer_score": 0.37445556819438935, "sibling_qid": "MUM-2024-06-1081-Q006", "sibling_text": "fwg vaccum not coming", "sibling_family": "Fresh Water & Domestic Systems", "via": "sibling", "answer_title": "How is vacuum created in the FWG, why does it run under vacuum, and what if the vacuum will not come?", "cross_family": true }, { "answer_id": "FWG-RO-003", "score": 0.4746254086494446, "sibling_score": 0.4746254086494446, "answer_score": 0.32381867468357084, "sibling_qid": "KOC-2026-02-1100-Q007", "sibling_text": "fwg production reduces reasons", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "The FWG is not producing enough water or its efficiency has dropped. Reasons, checks and action?", "cross_family": false }, { "answer_id": "VAC-COND-002", "score": 0.455009788274765, "sibling_score": 0.455009788274765, "answer_score": 0.32072313278913495, "sibling_qid": "KOL-2026-07-4255-Q006", "sibling_text": "fresh water generator not getting vaccum why any 6 reasons", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Low vacuum, suction loss and failure to build vacuum — the reasons", "cross_family": false } ] }, { "qid": "KOL-2017-02-3036-Q003", "text": "Ae botom bearing clearnce", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Bearing Clearance", "tid": "KOL-2017-02-3036", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-007", "score": 0.800559401512146, "sibling_score": 0.800559401512146, "answer_score": 0.49997083842754364, "sibling_qid": "KOC-2026-09-2213-Q004", "sibling_text": "ae bottom bearing clearance", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "AE big-end / bottom-end bearing — inspection, bedding, nip and crush", "cross_family": false }, { "answer_id": "BEB-B-002", "score": 0.7493849396705627, "sibling_score": 0.7493849396705627, "answer_score": 0.5022488415241241, "sibling_qid": "MUM-2025-07-1149-Q006", "sibling_text": "clearance of bottom end bearing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bottom End Bearing — Clearance Measurement", "cross_family": false }, { "answer_id": "AE-CSB-346-003", "score": 0.6970511078834534, "sibling_score": 0.6970511078834534, "answer_score": null, "sibling_qid": "MUM-2026-09-3946-Q003", "sibling_text": "ae main bearing clearances", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Checking / measuring auxiliary-engine thrust-bearing clearance (end float)", "cross_family": false } ] }, { "qid": "KOL-2017-02-3036-Q004", "text": "Bearing check", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Bearing Clearance", "tid": "KOL-2017-02-3036", "tray": "review", "candidates": [ { "answer_id": "MN-BRG-C-002", "score": 0.6905173659324646, "sibling_score": 0.6905173659324646, "answer_score": 0.43603622913360596, "sibling_qid": "KOL-2019-08-3268-Q003", "sibling_text": "bearing bedding how to check", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bedding, contact check and fitting of shells", "cross_family": false }, { "answer_id": "MAIN-BRG-D-004", "score": 0.6675139665603638, "sibling_score": 0.6675139665603638, "answer_score": null, "sibling_qid": "KOC-2025-05-2063-Q011", "sibling_text": "checks on main bearing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main bearing overhaul — jack-up, clearance check and tightening", "cross_family": false }, { "answer_id": "BRG-NOM-002", "score": 0.6547641158103943, "sibling_score": 0.6547641158103943, "answer_score": null, "sibling_qid": "CHE-2025-09-0215-Q011", "sibling_text": "some cross questions regarding bearing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Ball, Roller, Radial and Axial Bearings — Choosing the Type", "cross_family": false } ] }, { "qid": "KOL-2017-03-0066-Q003", "text": "Bunker wing tank construction ?what is stringer and what is stiffener? what is solid floor ?", "family": "MARPOL - General & Compliance", "subtopic": "Bunker Tank Location", "tid": "KOL-2017-03-0066", "tray": "new", "candidates": [ { "answer_id": "PPS-230-006", "score": 0.6087442636489868, "sibling_score": 0.6087442636489868, "answer_score": null, "sibling_qid": "KOL-2021-01-0461-Q001", "sibling_text": "intercostal girder solid floor panting stringers", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Fore-end / fore-peak structure: draw and describe", "cross_family": true }, { "answer_id": "FLR-WFB-P01-002", "score": 0.5615915060043335, "sibling_score": 0.5615915060043335, "answer_score": 0.48568846881389616, "sibling_qid": "CHE-2026-04-0139-Q004", "sibling_text": "solid floor girders", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "The solid floor — what it is, where it is fitted, its components", "cross_family": true }, { "answer_id": "FLR-WFB-P01-003", "score": 0.5317802429199219, "sibling_score": 0.5317802429199219, "answer_score": 0.4846796989440918, "sibling_qid": "KOL-2025-05-0944-Q007", "sibling_text": "solid floor bracket floor etc", "sibling_family": "", "via": "sibling", "answer_title": "Solid floor compared with the bracket (plain) floor", "cross_family": false } ] }, { "qid": "KOL-2017-03-0066-Q005", "text": "orb entry", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "KOL-2017-03-0066", "tray": "review", "candidates": [ { "answer_id": "OWS-ORB-006", "score": 0.774684488773346, "sibling_score": 0.774684488773346, "answer_score": null, "sibling_qid": "MUM-2025-09-0447-Q007", "sibling_text": "orb entries", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "6. Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-002", "score": 0.7017313838005066, "sibling_score": 0.7017313838005066, "answer_score": 0.24177053868770598, "sibling_qid": "CHE-2024-10-0509-Q002", "sibling_text": "orb entries all in detail", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "The Oil Record Book Part I — purpose, the letter codes, and how entries are made", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-004", "score": 0.6034586429595947, "sibling_score": 0.6034586429595947, "answer_score": null, "sibling_qid": "MUM-2026-08-3831-Q008", "sibling_text": "bunker entry in orb", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Weekly ORB entries — the mandatory sludge retention record, the bunker entry, and what is voluntary", "cross_family": false } ] }, { "qid": "KOL-2017-03-0067-Q002", "text": "What is management review", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOL-2017-03-0067", "tray": "review", "candidates": [ { "answer_id": "ISM-AUD-P02-006", "score": 0.7323454022407532, "sibling_score": 0.7323454022407532, "answer_score": 0.4292458415031433, "sibling_qid": "KOL-2022-03-0619-Q007", "sibling_text": "management review", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Master's review, company / management review and change management", "cross_family": false }, { "answer_id": "ISM-ELEM-006", "score": 0.7323454022407532, "sibling_score": 0.7323454022407532, "answer_score": 0.44167978763580323, "sibling_qid": "MUM-2025-06-0335-Q001", "sibling_text": "management review", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Master’s review & management review", "cross_family": false }, { "answer_id": "ISM-DPA-006", "score": 0.3765215426683426, "sibling_score": null, "answer_score": 0.3765215426683426, "sibling_qid": "", "sibling_text": "presenting the engine room in a management review meeting with the dpa present by priority safety critical and statutory items first open defects overdue critical pms alarm trip history", "sibling_family": "", "via": "answer_title", "answer_title": "Presenting the engine room in a management review meeting with the DPA", "cross_family": false } ] }, { "qid": "KOL-2017-03-0067-Q006", "text": "LRIT", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "KOL-2017-03-0067", "tray": "new", "candidates": [ { "answer_id": "EPIRB-SART-001", "score": 0.4722198247909546, "sibling_score": 0.4722198247909546, "answer_score": null, "sibling_qid": "KOL-2017-09-0112-Q004", "sibling_text": "lrit vdr epirb sart mob marker", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What is the difference between EPIRB and SART? 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Cross questions.", "family": "Air Compressor", "subtopic": "Reciprocating Compressor", "tid": "KOL-2017-03-1283", "tray": "new", "candidates": [ { "answer_id": "MAC-598-001", "score": 0.6207504868507385, "sibling_score": 0.6207504868507385, "answer_score": 0.44596798419952394, "sibling_qid": "MUM-2025-09-2429-Q005S2", "sibling_text": "decider ques the compressor valve has so many parts why the construction of valve is so complex", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "The main air compressor valve — arrangement, parts, and why the construction is so complex", "cross_family": false }, { "answer_id": "WTGS-325-007", "score": 0.591763436794281, "sibling_score": 0.591763436794281, "answer_score": null, "sibling_qid": "KOL-2026-02-3911-Q006", "sibling_text": "air compressor valve plate has scratch how to do lapping", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Valve-seat lapping tools and workshop valve checking", "cross_family": false }, { "answer_id": "ACSS-002", "score": 0.5812752842903137, "sibling_score": 0.5812752842903137, "answer_score": null, "sibling_qid": "KOL-2017-01-1840-Q004", "sibling_text": "what are the safeties of the main air compressor what is the material of the bursting disc", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Relief / safety valves: settings, testing, lifting reasons; bursting disc", "cross_family": false } ] }, { "qid": "KOL-2017-03-1284-Q003", "text": "2-turbocharger sleeve type bearing lubrication in detail", "family": "Turbocharger", "subtopic": "TC Bearing", "tid": "KOL-2017-03-1284", "tray": "review", "candidates": [ { "answer_id": "TURBO-CS-P03-008", "score": 0.6892269253730774, "sibling_score": 0.6892269253730774, "answer_score": 0.5742746353149414, "sibling_qid": "CHE-2026-05-0632-Q007", "sibling_text": "types of bearing and lubrication in turbocharger", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharger bearings: types, lubrication, damage and action", "cross_family": false }, { "answer_id": "TURBO-CS-P03-009", "score": 0.6859937310218811, "sibling_score": 0.6859937310218811, "answer_score": null, "sibling_qid": "KOL-2022-07-1702-Q004", "sibling_text": "me turbocharger type nozzle ring working types of lubrication", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Lubrication arrangement: integral vs external, sealing air", "cross_family": false }, { "answer_id": "TC-CS-P01-013", "score": 0.6844801306724548, "sibling_score": 0.6844801306724548, "answer_score": 0.5718207269906997, "sibling_qid": "KOC-2024-07-1847-Q007", "sibling_text": "lubrication of ae turbocharger", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "M·Lubrication of the auxiliary-engine turbocharger", "cross_family": false } ] }, { "qid": "KOL-2017-03-1284-Q006", "text": "5-imp high lift safety valve n floating liner all in details", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2017-03-1284", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.6623502969741821, "sibling_score": 0.6623502969741821, "answer_score": null, "sibling_qid": "MUM-2026-06-3405-Q017", "sibling_text": "improved high lift safety valve details", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-003", "score": 0.4672714650630951, "sibling_score": null, "answer_score": 0.4672714650630951, "sibling_qid": "", "sibling_text": "the accumulation test and the safety valve required lift how lift and capacity are verified and why accumulation must stay inside the limit popping test proves setting accumulation test proves installed relieving capacity not two versions of one test sizing the class discharge formula sizes the aggregate valve area from the maker s specified peak evaporation using a constant for the valve type", "sibling_family": "", "via": "answer_title", "answer_title": "The accumulation test and the safety valve — required lift, how lift and capacity are verified, and why accumulation must stay inside the limit", "cross_family": false }, { "answer_id": "ACSS-002", "score": 0.46682055592536925, "sibling_score": null, "answer_score": 0.46682055592536925, "sibling_qid": "", "sibling_text": "relief safety valves settings testing lifting reasons bursting disc set just above stage working pressure the class standard accumulation limit is about 10 though the exact set point is a maker sms value non isolable from its stage test to the maker s method easing gear or test rig for lifting pressure log and reset", "sibling_family": "", "via": "answer_title", "answer_title": "Relief / safety valves: settings, testing, lifting reasons; bursting disc", "cross_family": false } ] }, { "qid": "KOL-2017-03-1285-Q002", "text": "Safety valve n lip clearance , its importance n value", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2017-03-1285", "tray": "new", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-002", "score": 0.6211106777191162, "sibling_score": 0.6211106777191162, "answer_score": null, "sibling_qid": "KOL-2026-02-3922-Q005", "sibling_text": "what is lifting of safety valve tell only within 3 percent of designated set pressure nothing else", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Acceptance limits and durations — the accumulation limit, the maximum test periods, and the action if the limit is exceeded", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.5978983044624329, "sibling_score": 0.5978983044624329, "answer_score": null, "sibling_qid": "MUM-2026-03-2942-Q021", "sibling_text": "20 spectilty and lift of improved high lift safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACRV-005", "score": 0.5978440046310425, "sibling_score": 0.5978440046310425, "answer_score": null, "sibling_qid": "MUM-2026-06-3429-Q010", "sibling_text": "safety valve lift difference", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": false } ] }, { "qid": "KOL-2017-03-1285-Q003", "text": "Turbocharger n its lubrication system", "family": "Turbocharger", "subtopic": "TC Bearing", "tid": "KOL-2017-03-1285", "tray": "review", "candidates": [ { "answer_id": "TC-CS-P01-013", "score": 0.8051453232765198, "sibling_score": 0.8051453232765198, "answer_score": 0.6419110059738159, "sibling_qid": "KOC-2024-07-1847-Q007", "sibling_text": "lubrication of ae turbocharger", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "M·Lubrication of the auxiliary-engine turbocharger", "cross_family": false }, { "answer_id": "TURBO-CS-P03-009", "score": 0.7894509434700012, "sibling_score": 0.7894509434700012, "answer_score": null, "sibling_qid": "KOL-2022-07-1702-Q004", "sibling_text": "me turbocharger type nozzle ring working types of lubrication", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Lubrication arrangement: integral vs external, sealing air", "cross_family": false }, { "answer_id": "TC-CONST-005", "score": 0.7615584135055542, "sibling_score": 0.7615584135055542, "answer_score": null, "sibling_qid": "MUM-2025-07-2815-Q005", "sibling_text": "turbocharger compressor side construction and type of bearing and lubrication", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Compressor/blower side components and air flow", "cross_family": false } ] }, { "qid": "KOL-2017-03-1846-Q001", "text": "Aux engg one unit exhaust temp going low reason ?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Unit Temperature Low / Troubleshooting", "tid": "KOL-2017-03-1846", "tray": "review", "candidates": [ { "answer_id": "CPP-POL-02", "score": 0.7869812846183777, "sibling_score": 0.7869812846183777, "answer_score": 0.5598075449466705, "sibling_qid": "MUM-2026-03-2618-Q003", "sibling_text": "a e one unit exhaust temperature is low causes", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "One main-engine cylinder has a low exhaust temperature — what are the causes and checks?", "cross_family": false }, { "answer_id": "EGTP-P02-007", "score": 0.7388481497764587, "sibling_score": 0.7388481497764587, "answer_score": null, "sibling_qid": "KOL-2026-05-4196-Q007", "sibling_text": "ae one unit exhaust temp low what is your action", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "High Exhaust Temperature — One Unit vs All Units", "cross_family": false }, { "answer_id": "AE-HOT-BLOW-004", "score": 0.7243326306343079, "sibling_score": 0.7243326306343079, "answer_score": 0.6206329584121704, "sibling_qid": "MUM-2025-12-2879-Q006", "sibling_text": "rating of the ae running at low load but exhaust temp are high reason", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Auxiliary engine at low load but exhaust temperatures high — reasons", "cross_family": false } ] }, { "qid": "KOL-2017-03-1846-Q002", "text": "why fwd production low ?", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "KOL-2017-03-1846", "tray": "new", "candidates": [ { "answer_id": "FWG-RO-003", "score": 0.6213572025299072, "sibling_score": 0.6213572025299072, "answer_score": 0.31062633991241456, "sibling_qid": "KOC-2026-02-1098-Q007", "sibling_text": "fwg production reduces reasons", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "The FWG is not producing enough water or its efficiency has dropped. Reasons, checks and action?", "cross_family": false }, { "answer_id": "EGTP-P02-002", "score": 0.4146868586540222, "sibling_score": 0.4146868586540222, "answer_score": 0.27282647490501405, "sibling_qid": "MUM-2022-07-0939-Q004", "sibling_text": "why pcomp will be low", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Why Compression Pressure (Pcomp) Can Be Low", "cross_family": true }, { "answer_id": "LRHR-A-002", "score": 0.38842344284057617, "sibling_score": 0.38842344284057617, "answer_score": null, "sibling_qid": "KOL-2017-01-0044-Q005", "sibling_text": "if any laftraft in forward n why", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "The forward liferaft — the 100 m rule and why it is different", "cross_family": true } ] }, { "qid": "KOL-2017-03-1846-Q003", "text": "safety device definition ?safety device on boiler ?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2017-03-1846", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-008", "score": 0.7945066094398499, "sibling_score": 0.7945066094398499, "answer_score": null, "sibling_qid": "KOC-2026-05-0009-Q004", "sibling_text": "safety devices in boiler", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACRV-005", "score": 0.7302550673484802, "sibling_score": 0.7302550673484802, "answer_score": null, "sibling_qid": "MUM-2025-07-1140-Q007", "sibling_text": "q difference between safety valve and relief valve boiler all safety devices", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.7289526462554932, "sibling_score": 0.7289526462554932, "answer_score": null, "sibling_qid": "CHE-2026-05-0583-Q002", "sibling_text": "boiler safety valve lifting pressure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOL-2017-03-1848-Q002", "text": "Safety in Refer Compressor.", "family": "Refrigeration & AC", "subtopic": "Refer Safety", "tid": "KOL-2017-03-1848", "tray": "review", "candidates": [ { "answer_id": "REEF-COMP-001", "score": 0.6534823775291443, "sibling_score": 0.6534823775291443, "answer_score": 0.37300961911678315, "sibling_qid": "KOC-2026-01-1990-Q005", "sibling_text": "ref compressor safeties", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Reefer/AC compressor safeties and cut-outs — safety valve, HP and LP cut-outs", "cross_family": false }, { "answer_id": "REEF-SAFE-001", "score": 0.6126258373260498, "sibling_score": 0.6126258373260498, "answer_score": 0.3367274686694145, "sibling_qid": "CHE-2025-12-0225-Q005", "sibling_text": "refer safeties", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Refrigeration plant and reefer-room safeties — what protects the machinery, and what protects the man?", "cross_family": false }, { "answer_id": "CAP-CTRL-002", "score": 0.5762972831726074, "sibling_score": 0.5762972831726074, "answer_score": null, "sibling_qid": "KOC-2025-12-1985-Q003", "sibling_text": "unloader in refer compressor", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "CG-002 · How the cylinder-unloader mechanism works", "cross_family": false } ] }, { "qid": "KOL-2017-03-1848-Q005", "text": "Construction of Telescopic Feeler Gauge. Functional 6", "family": "Gauges & Tools", "subtopic": "Feeler Gauge", "tid": "KOL-2017-03-1848", "tray": "new", "candidates": [ { "answer_id": "MICR-002", "score": 0.4703376591205597, "sibling_score": 0.4703376591205597, "answer_score": null, "sibling_qid": "KOL-2018-05-1373-Q012", "sibling_text": "screw gauge zero calibration", "sibling_family": "Gauges & Tools", "via": "sibling", "answer_title": "Zero setting, calibration, error check and trueness", "cross_family": false }, { "answer_id": "CSD-BF036-002", "score": 0.43692123889923096, "sibling_score": 0.43692123889923096, "answer_score": null, "sibling_qid": "KOL-2026-02-3920-Q004", "sibling_text": "trammel gauge how to take measurements 5", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "How do you take a crankshaft deflection — pre-checks, and instructing the 3/E?", "cross_family": true }, { "answer_id": "MICR-003", "score": 0.4342809021472931, "sibling_score": 0.4342809021472931, "answer_score": 0.3690698385238647, "sibling_qid": "KOL-2024-09-3711-Q010", "sibling_text": "q2 least count of inside micromere how wil u take 150 mm bore liner how maney scale in inside micrometer", "sibling_family": "Gauges & Tools", "via": "sibling", "answer_title": "Cylinder liner calibration with the inside micrometer", "cross_family": false } ] }, { "qid": "KOL-2017-03-1848-Q006", "text": "Methods of evaporator Defrosting", "family": "Refrigeration & AC", "subtopic": "Refrigeration Faults / Checks", "tid": "KOL-2017-03-1848", "tray": "review", "candidates": [ { "answer_id": "REFR-FLT-002", "score": 0.802818775177002, "sibling_score": 0.802818775177002, "answer_score": 0.6202505469322205, "sibling_qid": "KOL-2019-12-1502-Q003", "sibling_text": "evaporator defrosting methods", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Evaporator defrosting: methods, control, and defrost faults", "cross_family": false }, { "answer_id": "REEF-PREP-004", "score": 0.5249281525611877, "sibling_score": null, "answer_score": 0.5249281525611877, "sibling_qid": "", "sibling_text": "refrigerated room pan heating arrangement the pan is the drip tray drain pan under the evaporator that catches defrost meltwater the pan heater is an electric element in that tray energised during and just after defrost keeping meltwater liquid so it drains instead of re freezing", "sibling_family": "", "via": "answer_title", "answer_title": "Refrigerated-room pan-heating arrangement", "cross_family": false }, { "answer_id": "REFR-FLT-006", "score": 0.4956186532974243, "sibling_score": null, "answer_score": 0.4956186532974243, "sibling_qid": "", "sibling_text": "suction line compressor frosting faults to suspect what suction line crankcase frosting means low superheat wet suction liquid returning floodback not normal cold suction sweat causes expansion valve overfeeding superheat set too low sensing bulb loose uninsulated or wrongly placed overcharge evaporator fan failure or iced coil gas not boiling off very light load liquid carryover after defrost", "sibling_family": "", "via": "answer_title", "answer_title": "Suction-line / compressor frosting: faults to suspect", "cross_family": false } ] }, { "qid": "KOL-2017-03-1848-Q008", "text": "Purpose of Reaming.", "family": "Workshop & Welding", "subtopic": "Pipe Fabrication", "tid": "KOL-2017-03-1848", "tray": "review", "candidates": [ { "answer_id": "LATHE-TD-004", "score": 0.6770198941230774, "sibling_score": 0.6770198941230774, "answer_score": 0.5278261303901672, "sibling_qid": "CHE-2026-04-0507-Q005", "sibling_text": "reaming", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Reaming — purpose, use, and identifying reamers", "cross_family": false }, { "answer_id": "PIPEFAB-012", "score": 0.466977596282959, "sibling_score": 0.466977596282959, "answer_score": null, "sibling_qid": "CHE-2026-05-0578-Q010", "sibling_text": "purpose of flaring tool", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "What is the purpose of a flaring tool?", "cross_family": false }, { "answer_id": "CYL-LINER-P02-001", "score": 0.450185626745224, "sibling_score": 0.450185626745224, "answer_score": 0.3725452333688736, "sibling_qid": "CHE-2026-04-0507-Q006", "sibling_text": "honing and it purpose 2 more questions don t remember", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L1 · T044-PART_02-G001High", "cross_family": true } ] }, { "qid": "KOL-2017-03-2115-Q007", "text": "Current supplied in ICCP and Voltage range ?", "family": "Electrical - ICCP & Cathodic Protection", "subtopic": "ICCP", "tid": "KOL-2017-03-2115", "tray": "review", "candidates": [ { "answer_id": "ICCP-119-P01-003", "score": 0.7976440787315369, "sibling_score": 0.7976440787315369, "answer_score": 0.4915464371442795, "sibling_qid": "MUM-2024-02-1424-Q004", "sibling_text": "iccp full with voltages current value", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP values, impressed-current meaning, anode/cathode roles and materials", "cross_family": false }, { "answer_id": "ICCP-P02-001", "score": 0.7678211331367493, "sibling_score": 0.7678211331367493, "answer_score": null, "sibling_qid": "KOC-2026-05-0051-Q002", "sibling_text": "iccp drawing ref voltage 800mv also current applied", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP reference cell / reference electrode — purpose, material, location, selection", "cross_family": false }, { "answer_id": "ICCP-119-P01-002", "score": 0.7422822117805481, "sibling_score": 0.7422822117805481, "answer_score": null, "sibling_qid": "MUM-2026-02-1919-Q002", "sibling_text": "iccp circuit explain and values of current and voltage", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP circuit / control arrangement, construction and main components", "cross_family": false } ] }, { "qid": "KOL-2017-03-2118-Q002", "text": "zenor barrier nd diode", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Zener / Diode / Rectifier", "tid": "KOL-2017-03-2118", "tray": "review", "candidates": [ { "answer_id": "EPC-P02-02", "score": 0.6516029238700867, "sibling_score": 0.6516029238700867, "answer_score": 0.4547810286283493, "sibling_qid": "KOL-2016-11-2079-Q002", "sibling_text": "zenor diode differance with normal diode its special property nd where they r used", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "How is a zener diode different from a normal (PN / crystal) diode — construction, behaviour, output, and use?", "cross_family": false }, { "answer_id": "EPC-P02-01", "score": 0.6514803767204285, "sibling_score": 0.6514803767204285, "answer_score": 0.4402900755405426, "sibling_qid": "KOL-2022-10-2611-Q004", "sibling_text": "what is zenor diode what is it s characteristics how it is differ from normal diode what is forward bias and reverse biased", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a zener diode? Draw its symbol, explain its working principle, and draw and explain its characteristic curve including the zener (breakdown) voltage.", "cross_family": false }, { "answer_id": "EPC-P02-03", "score": 0.6305058002471924, "sibling_score": 0.6305058002471924, "answer_score": null, "sibling_qid": "MUM-2026-07-3813-Q002", "sibling_text": "zener barrier full explanation every component", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Where is a zener diode used on board and why — voltage regulator, AVR, clipper — and explain one application in detail.", "cross_family": false } ] }, { "qid": "KOL-2017-03-2118-Q005", "text": "forgot", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOL-2017-03-2118", "tray": "new", "candidates": [ { "answer_id": "VIB-BAL-B-003", "score": 0.6437952518463135, "sibling_score": 0.6437952518463135, "answer_score": null, "sibling_qid": "KOL-2018-08-0204-Q006", "sibling_text": "not remember", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Torsional vibration: what it is, what causes it, how it is controlled", "cross_family": true }, { "answer_id": "BWMS-C-002", "score": 0.6205416917800903, "sibling_score": 0.6205416917800903, "answer_score": null, "sibling_qid": "KOL-2022-05-0641-Q005", "sibling_text": "bwts one more question but forgot", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Types of BWTS and their working principles", "cross_family": true }, { "answer_id": "VIT-MECH-B-002", "score": 0.5774917602539062, "sibling_score": 0.5774917602539062, "answer_score": null, "sibling_qid": "MUM-2025-11-2491-Q009", "sibling_text": "vit how to vit adjust some question forgot", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How VIT is adjusted and set — timing and fuel-quality (FQS) interactions", "cross_family": true } ] }, { "qid": "KOL-2017-03-2120-Q001", "text": "What was the type of alternator on ur last ship? Maintenance routines on alternator? If air gap is less, what will happen & what does it indicate?", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator / Generator", "tid": "KOL-2017-03-2120", "tray": "review", "candidates": [ { "answer_id": "ALT-MAINT-C-001", "score": 0.7433934807777405, "sibling_score": 0.7433934807777405, "answer_score": 0.5193559288978576, "sibling_qid": "KOL-2025-08-2843-Q009", "sibling_text": "alternator maintenance air gap ir", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. How is the alternator air gap checked, and what does an abnormal gap tell you?", "cross_family": false }, { "answer_id": "AIR-GAP-003", "score": 0.7361205816268921, "sibling_score": 0.7361205816268921, "answer_score": null, "sibling_qid": "KOL-2025-09-2878-Q004", "sibling_text": "alternator maintenance air gap in the bottom reduced reason", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "AG-3 — Effects, causes, indications and correction: high, low, uneven, contaminated gap", "cross_family": true }, { "answer_id": "ALT-MAINT-A-001", "score": 0.7259470820426941, "sibling_score": 0.7259470820426941, "answer_score": 0.48589553236961364, "sibling_qid": "MUM-2022-07-1339-Q001", "sibling_text": "alternator maintenance gap bw stator and rotor", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Routine maintenance & care of a ship’s alternator", "cross_family": false } ] }, { "qid": "KOL-2017-03-3039-Q002", "text": "Semi balanced rudder? How it's load taken? Where is carrier bearing? Locking and bearing pintle? What's it functions?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2017-03-3039", "tray": "review", "candidates": [ { "answer_id": "TRS-002", "score": 0.7437323927879333, "sibling_score": 0.7437323927879333, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.6752805113792419, "sibling_score": 0.6752805113792419, "answer_score": 0.44698227643966676, "sibling_qid": "CHE-2026-02-0110-Q006", "sibling_text": "how rudder weight is carried key ans i said carrier bearing how it carrying explain", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "PRE-TEN-001", "score": 0.6169851422309875, "sibling_score": 0.6169851422309875, "answer_score": null, "sibling_qid": "MUM-2026-06-3504-Q007", "sibling_text": "rudder carrier bearing removal procedure", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Pre-stressing and pre-tensioning in main-engine bolting", "cross_family": false } ] }, { "qid": "KOL-2017-03-3040-Q005", "text": "What work did you do on ship on Main Engine and Auxiliary Engine?", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOL-2017-03-3040", "tray": "new", "candidates": [ { "answer_id": "ETP-344-P01-001", "score": 0.5916602611541748, "sibling_score": 0.5916602611541748, "answer_score": null, "sibling_qid": "CHE-2026-02-0243-Q001", "sibling_text": "type of ship and type of main engine you worked", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": true }, { "answer_id": "AEME-DIFF-001", "score": 0.5677404403686523, "sibling_score": 0.5677404403686523, "answer_score": 0.4985578715801239, "sibling_qid": "MUM-2026-03-1294-Q005", "sibling_text": "so what main engine auxiliary engine you had", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": true }, { "answer_id": "EMD-MEAE-001", "score": 0.5536812543869019, "sibling_score": 0.5536812543869019, "answer_score": null, "sibling_qid": "MUM-2026-03-1294-Q007", "sibling_text": "what is the difference in the foundation of main engine and auxiliary engine both are fitted to the ship s hull what is the difference in their foundation", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "1. ME vs AE foundation — rigid chocking against resilient mounting", "cross_family": true } ] }, { "qid": "KOL-2017-03-3040-Q007", "text": "Type of Auxiliary Engine worked on?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOL-2017-03-3040", "tray": "review", "candidates": [ { "answer_id": "AEME-DIFF-001", "score": 0.6886137127876282, "sibling_score": 0.6886137127876282, "answer_score": 0.4687560200691223, "sibling_qid": "MUM-2026-05-3082-Q001", "sibling_text": "type of engine boiler aux engine generator", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "ETP-344-P03-001", "score": 0.6759463548660278, "sibling_score": 0.6759463548660278, "answer_score": null, "sibling_qid": "MUM-2026-06-3492-Q002", "sibling_text": "which type of engines worked on", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "MCC-MEB-P01-001", "score": 0.651038646697998, "sibling_score": 0.651038646697998, "answer_score": null, "sibling_qid": "MUM-2026-09-3997-Q002", "sibling_text": "type of engine worked me mcc me b and rta", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "MC-C (\"Compact\") engine — design and the main constructional differences from MC", "cross_family": false } ] }, { "qid": "KOL-2017-03-3042-Q003", "text": "boiler full bore safety v/v in detail", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2017-03-3042", "tray": "review", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-003", "score": 0.6593437194824219, "sibling_score": 0.6593437194824219, "answer_score": null, "sibling_qid": "KOL-2026-02-2040-Q006", "sibling_text": "boiler safety v v setting boiler accumulation pr test", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "The accumulation test and the safety valve — required lift, how lift and capacity are verified, and why accumulation must stay inside the limit", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.6459303498268127, "sibling_score": 0.6459303498268127, "answer_score": null, "sibling_qid": "MUM-2026-07-3734-Q006", "sibling_text": "explain boiler survey full started with safety precautions", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-008", "score": 0.6318922638893127, "sibling_score": 0.6318922638893127, "answer_score": null, "sibling_qid": "MUM-2026-05-3078-Q008", "sibling_text": "safeties on boiler", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOL-2017-03-3042-Q005", "text": "what is swivel bearing? If a sg motor is taking more current reason?", "family": "Electrical - Generator & Alternator", "subtopic": "Shaft Generator", "tid": "KOL-2017-03-3042", "tray": "new", "candidates": [ { "answer_id": "STEER-055-A-005", "score": 0.5659885406494141, "sibling_score": 0.5659885406494141, "answer_score": null, "sibling_qid": "KOL-2021-10-1635-Q002", "sibling_text": "swivel bearimg in s g", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Checks, clearances, trials and steering-room duties", "cross_family": true }, { "answer_id": "SGM-ELEC-004", "score": 0.5384489297866821, "sibling_score": 0.5384489297866821, "answer_score": 0.37956097424030305, "sibling_qid": "KOL-2020-02-1517-Q005", "sibling_text": "steering gear motor taking more current reasons", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "The steering gear motor is taking high current or is overloaded — what are the reasons, apart from the electrical side?", "cross_family": true }, { "answer_id": "MNS-015", "score": 0.5034676194190979, "sibling_score": 0.5034676194190979, "answer_score": 0.4438997805118561, "sibling_qid": "KOC-2024-12-1446-Q009", "sibling_text": "internal running motor drawing more current why", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "A running motor is drawing more current than normal — why", "cross_family": true } ] }, { "qid": "KOL-2017-03-3044-Q003", "text": "3- why aft peak tank is provided?", "family": "", "subtopic": "Peak Tank Construction", "tid": "KOL-2017-03-3044", "tray": "new", "candidates": [ { "answer_id": "STS-P02-002", "score": 0.4999116063117981, "sibling_score": 0.4999116063117981, "answer_score": 0.4104585349559784, "sibling_qid": "MUM-2026-07-3783-Q004", "sibling_text": "why header tank", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "STS-P02-02 - Stern tube lubrication, header tank and oil properties", "cross_family": false }, { "answer_id": "PPS-230-006", "score": 0.49016088247299194, "sibling_score": 0.49016088247299194, "answer_score": null, "sibling_qid": "KOL-2025-09-1065-Q005", "sibling_text": "fore peak tank construction panting pounding arrangement", "sibling_family": "", "via": "sibling", "answer_title": "Fore-end / fore-peak structure: draw and describe", "cross_family": false }, { "answer_id": "BC-HOPPER-G-002", "score": 0.48631641268730164, "sibling_score": 0.48631641268730164, "answer_score": null, "sibling_qid": "KOL-2025-09-1090-Q007", "sibling_text": "purpose and when top side tank filled", "sibling_family": "", "via": "sibling", "answer_title": "Ballasting the upper hopper / topside tank — when and why", "cross_family": false } ] }, { "qid": "KOL-2017-03-3045-Q003", "text": "Overhauling of improved high lift safety valve . What all you check", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2017-03-3045", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.8008257746696472, "sibling_score": 0.8008257746696472, "answer_score": null, "sibling_qid": "KOC-2026-02-1106-Q007", "sibling_text": "improved high lift safety valve overhaul and checks", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.7700949311256409, "sibling_score": 0.7700949311256409, "answer_score": null, "sibling_qid": "KOL-2026-01-3900-Q005", "sibling_text": "check on safety valve during overhaul", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "ECON-EGB-004", "score": 0.5544945180416107, "sibling_score": null, "answer_score": 0.5544945180416107, "sibling_qid": "", "sibling_text": "safety valve setting after overhaul why set higher than the boiler setting raise pressure under steam on a calibrated gauge adjust spring compression to lift at the approved set pressure verify re seat and blowdown two valves one at a time the other gagged lock and seal surveyor witnessed values are class approved ship specific set pressure accumulation representative limit and blowdown quote the ", "sibling_family": "", "via": "answer_title", "answer_title": "Safety-valve setting after overhaul & why set higher than the boiler", "cross_family": false } ] }, { "qid": "KOL-2017-03-3046-Q003", "text": "globe valve overhaul", "family": "Pumps - Centrifugal & PD", "subtopic": "Bilge Line / Pump", "tid": "KOL-2017-03-3046", "tray": "review", "candidates": [ { "answer_id": "GV-330-002", "score": 0.7936850190162659, "sibling_score": 0.7936850190162659, "answer_score": 0.5212360680103302, "sibling_qid": "KOL-2026-03-3935-Q002", "sibling_text": "overhauling of globe valve", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Gate valve overhaul, checks & the stuck / not-operating valve", "cross_family": true }, { "answer_id": "EXV-P02-001", "score": 0.6076676845550537, "sibling_score": 0.6076676845550537, "answer_score": null, "sibling_qid": "KOC-2026-02-0807-Q010", "sibling_text": "exh valve overhauling procedure", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve overhaul & dismantling — procedure and precautions", "cross_family": true }, { "answer_id": "SDNR-SDR-001", "score": 0.6060859560966492, "sibling_score": 0.6060859560966492, "answer_score": null, "sibling_qid": "KOL-2026-07-4285-Q006", "sibling_text": "globe valve disadvantage", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "SDNR versus a plain globe valve -- telling them apart from outside, and the drawbacks of each", "cross_family": true } ] }, { "qid": "KOL-2017-03-3958-Q002", "text": "Tumblehome and its purpose", "family": "SOLAS", "subtopic": "Tumblehome / Hull Form", "tid": "KOL-2017-03-3958", "tray": "new", "candidates": [ { "answer_id": "KEEL-FRM-B-003", "score": 0.5144142508506775, "sibling_score": 0.5144142508506775, "answer_score": null, "sibling_qid": "KOC-2026-04-0890-Q004", "sibling_text": "tumblehome why it is there which all ship it is present", "sibling_family": "", "via": "sibling", "answer_title": "Rise of floor, camber, deadrise & hull-form terms", "cross_family": false }, { "answer_id": "SHELL-PLT-A-002", "score": 0.5062390565872192, "sibling_score": 0.5062390565872192, "answer_score": null, "sibling_qid": "KOL-2025-09-1083-Q008", "sibling_text": "tumble home", "sibling_family": "", "via": "sibling", "answer_title": "Shell plating, strakes, and the named strakes", "cross_family": false }, { "answer_id": "SHELL-PLT-B-001", "score": 0.3966822922229767, "sibling_score": 0.3966822922229767, "answer_score": null, "sibling_qid": "KOL-2019-08-0316-Q003", "sibling_text": "shear strake tumble home", "sibling_family": "", "via": "sibling", "answer_title": "Sheer strake — location, why strengthened, deck-edge / gunwale connection", "cross_family": false } ] }, { "qid": "KOL-2017-04-0080-Q006", "text": "Intrinsically safe, Zener diode, ward leonard, pyrometer, avr", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOL-2017-04-0080", "tray": "new", "candidates": [ { "answer_id": "FSF-BF073-004", "score": 0.6083259582519531, "sibling_score": 0.6083259582519531, "answer_score": null, "sibling_qid": "CHE-2026-03-0359-Q001", "sibling_text": "zener diode zener barrier working in intrinsically safe", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a magnetic fail safe?", "cross_family": false }, { "answer_id": "AVR-EXC-G-004", "score": 0.6058094501495361, "sibling_score": 0.6058094501495361, "answer_score": 0.475731685757637, "sibling_qid": "KOC-2024-02-1328-Q002", "sibling_text": "avr working zener diode working", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Inside the AVR: sensing, reference and control devices", "cross_family": false }, { "answer_id": "HAZ-EX-B-001", "score": 0.5920388698577881, "sibling_score": 0.5920388698577881, "answer_score": null, "sibling_qid": "CHE-2026-03-0358-Q005", "sibling_text": "zener barrier working in intrinsically safe", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Intrinsically safe (Ex i) equipment — what it is, how it works, where it is used, how you identify it", "cross_family": false } ] }, { "qid": "KOL-2017-04-0081-Q001", "text": "Ext - Mukhopadhyay in PO Cabin Chkd my EXN and previous result. Asked which grade of ships I have sailed.", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2017-04-0081", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.6569474935531616, "sibling_score": 0.6569474935531616, "answer_score": null, "sibling_qid": "MUM-2026-03-0866-Q001", "sibling_text": "coc attempt internal sirish sir external vishwanathan iyer sir started with what function you are applying how many ships type of ships you did after class 4 pre sea from where how many written cleared what about other functions", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.6217092275619507, "sibling_score": 0.6217092275619507, "answer_score": null, "sibling_qid": "MUM-2026-01-0677-Q001", "sibling_text": "what type of ships you have sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "SCBA-EEBD-001", "score": 0.6173427700996399, "sibling_score": 0.6173427700996399, "answer_score": null, "sibling_qid": "KOL-2022-01-0597-Q002", "sibling_text": "type of ship sailed checks on scaba as a second engineer", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "SCBA / CABA compressor — checks, oil, air quality, spares, certificate", "cross_family": true } ] }, { "qid": "KOL-2017-04-0081-Q002", "text": "ISM objective? SMS details, what it contains..", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOL-2017-04-0081", "tray": "new", "candidates": [ { "answer_id": "SMSFR-002", "score": 0.6209586262702942, "sibling_score": 0.6209586262702942, "answer_score": 0.3975925773382187, "sibling_qid": "KOL-2019-01-0255-Q005", "sibling_text": "sms objectives key points", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the Safety Management System — the SMS manual, its contents, objectives, why it is needed onboard, and the company SMS policy?", "cross_family": false }, { "answer_id": "ISM-AUDIT-P01-002", "score": 0.6168585419654846, "sibling_score": 0.6168585419654846, "answer_score": null, "sibling_qid": "KOC-2026-05-0049-Q005", "sibling_text": "ism survey only documentation contents of sms", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM/SMS audits and verifications — types, who conducts them, intervals and validity", "cross_family": false }, { "answer_id": "ISM-AUD-P02-003", "score": 0.6080849766731262, "sibling_score": 0.6080849766731262, "answer_score": null, "sibling_qid": "MUM-2026-04-0928-Q006", "sibling_text": "ism elements and functional requirements of sms", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "The six functional requirements of the ISM Code (clause 1.4)", "cross_family": false } ] }, { "qid": "KOL-2017-04-0083-Q005", "text": "What is centroid formula and second moment of inertia and which axis it passes thru.", "family": "", "subtopic": "Scantlings", "tid": "KOL-2017-04-0083", "tray": "new", "candidates": [ { "answer_id": "GM-META-002", "score": 0.5448501110076904, "sibling_score": 0.5448501110076904, "answer_score": null, "sibling_qid": "MUM-2024-08-0190-Q002", "sibling_text": "gm calculation centre of gravity", "sibling_family": "", "via": "sibling", "answer_title": "How loading, discharge, ballast and lifts move G and GM", "cross_family": false }, { "answer_id": "VIB-BAL-C-FINAL-1-001", "score": 0.5300090312957764, "sibling_score": 0.5300090312957764, "answer_score": 0.38214557021856305, "sibling_qid": "MUM-2024-12-1098-Q004", "sibling_text": "second order moment in details", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "First- & Second-Order External Moments, Guide-Force Moments & Moment Compensators", "cross_family": false }, { "answer_id": "STRSTR-298-007", "score": 0.5119556188583374, "sibling_score": 0.5119556188583374, "answer_score": 0.4433555483818054, "sibling_qid": "KOL-2025-11-1115-Q006", "sibling_text": "how many types of moment of intertia", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "What are moments and moment of inertia, and what are the types of moment of inertia?", "cross_family": false } ] }, { "qid": "KOL-2017-04-1287-Q001", "text": "What type of Engine you worked in...", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOL-2017-04-1287", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.7191666960716248, "sibling_score": 0.7191666960716248, "answer_score": null, "sibling_qid": "KOL-2026-05-4244-Q002", "sibling_text": "engines you have worked on", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.6915690898895264, "sibling_score": 0.6915690898895264, "answer_score": null, "sibling_qid": "CHE-2026-04-0506-Q003", "sibling_text": "types of engine you worked specifications of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false }, { "answer_id": "MCC-MEB-P01-001", "score": 0.6776929497718811, "sibling_score": 0.6776929497718811, "answer_score": null, "sibling_qid": "MUM-2026-09-3997-Q002", "sibling_text": "type of engine worked me mcc me b and rta", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "MC-C (\"Compact\") engine — design and the main constructional differences from MC", "cross_family": false } ] }, { "qid": "KOL-2017-04-1288-Q002", "text": ")Difference between low pressure n high pressure safety valve.", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2017-04-1288", "tray": "review", "candidates": [ { "answer_id": "ACRV-005", "score": 0.7290393710136414, "sibling_score": 0.7290393710136414, "answer_score": 0.5595765173435211, "sibling_qid": "MUM-2026-09-3971-Q016", "sibling_text": "diff in safety valve relief valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.7283086180686951, "sibling_score": 0.7283086180686951, "answer_score": null, "sibling_qid": "MUM-2026-07-3727-Q003", "sibling_text": "difference between medium lift and high lift safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "BLR-STM-PR-B54-003", "score": 0.49279109835624696, "sibling_score": null, "answer_score": 0.49279109835624696, "sibling_qid": "", "sibling_text": "the boiler high pressure cut out has operated what makes it cut out what it is an independent burner shut off on pressure a protective device not part of the modulating control order of set points working pressure control band high pressure alarm high pressure cut out safety valve set pressure then the class accumulation limit above that", "sibling_family": "", "via": "answer_title", "answer_title": "The boiler high-pressure cut-out has operated — what makes it cut out", "cross_family": false } ] }, { "qid": "KOL-2017-04-1288-Q006", "text": ")3stage air compressor how to adjust the bumping clearance.", "family": "Air 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(Emergency n emer. Batteries) ?", "family": "Electrical - Generator & Alternator", "subtopic": "Emergency DG", "tid": "KOL-2017-04-2125", "tray": "review", "candidates": [ { "answer_id": "EMG-DG-P02-FINAL-2-001", "score": 0.7842372059822083, "sibling_score": 0.7842372059822083, "answer_score": null, "sibling_qid": "KOL-2025-09-2870-Q005", "sibling_text": "emergency power on your ship why emergency battery is der if emergency generator have onboard", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Emergency generator loads and duration of emergency supply", "cross_family": false }, { "answer_id": "EDG-P01-001", "score": 0.7796276807785034, "sibling_score": 0.7796276807785034, "answer_score": 0.6153214514255524, "sibling_qid": "MUM-2026-03-2012-Q007", "sibling_text": "solas regulation for emergency source of power on board", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Emergency source of power — the SOLAS requirements", "cross_family": false }, { "answer_id": "EDG-P01-002", "score": 0.7491263747215271, "sibling_score": 0.7491263747215271, "answer_score": null, "sibling_qid": "KOL-2020-10-2398-Q004", "sibling_text": "what are the regulations for emergency generator location emergency generator supplies power to which part of ship", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Emergency generator room — location and rounds", "cross_family": false } ] }, { "qid": "KOL-2017-04-3048-Q001", "text": "Aux. Boiler safety valve setting.", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2017-04-3048", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-001", "score": 0.770373523235321, "sibling_score": 0.770373523235321, "answer_score": null, "sibling_qid": "CHE-2026-04-0500-Q005", "sibling_text": "boiler safety valve setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.7312056422233582, "sibling_score": 0.7312056422233582, "answer_score": null, "sibling_qid": "MUM-2026-03-2935-Q013", "sibling_text": "boiler safety valve setting in presence of surveyor after survey", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.7223477959632874, "sibling_score": 0.7223477959632874, "answer_score": null, "sibling_qid": "KOC-2026-05-0034-Q010", "sibling_text": "boiler safety valve types and how safety valve is set complete procedures", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOL-2017-04-3050-Q005", "text": "construction diff bet full lift safety vv n imp h l safety vv", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2017-04-3050", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.6755325794219971, "sibling_score": 0.6755325794219971, "answer_score": null, "sibling_qid": "CHE-2026-05-0601-Q009", "sibling_text": "improved high lift safety v v construction o haul and checks", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACRV-005", "score": 0.5485226511955261, "sibling_score": 0.5485226511955261, "answer_score": null, "sibling_qid": "KOC-2025-03-1031-Q017", "sibling_text": "diff bw safety vv relief vv", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-003", "score": 0.5332962870597839, "sibling_score": 0.5332962870597839, "answer_score": null, "sibling_qid": "KOL-2017-02-1842-Q002", "sibling_text": "accumulation of pr test wen it shud b carried blow down and hw it is controlled constructional difference in high lift n improved high lift", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "The accumulation test and the safety valve — required lift, how lift and capacity are verified, and why accumulation must stay inside the limit", "cross_family": false } ] }, { "qid": "KOL-2017-05-0087-Q007", "text": "shipbuilding material apart from steel", "family": "", "subtopic": "Scantlings", "tid": "KOL-2017-05-0087", "tray": "review", "candidates": [ { "answer_id": "STEEL-GR-001", "score": 0.7624269723892212, "sibling_score": 0.7624269723892212, "answer_score": 0.47057049870491025, "sibling_qid": "KOL-2025-09-1067-Q008", "sibling_text": "material in ship building other than mild steel", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Materials and steel grades for ship and hull construction", "cross_family": false }, { "answer_id": "MATPROP-A-007", "score": 0.7095419764518738, "sibling_score": 0.7095419764518738, "answer_score": 0.4716709196567535, "sibling_qid": "KOC-2021-07-0016-Q008", "sibling_text": "materials used for ship construction", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Materials for ship and engine components", "cross_family": false }, { "answer_id": "LSA-LB-A-006", "score": 0.4723768711090088, "sibling_score": null, "answer_score": 0.4723768711090088, "sibling_qid": "", "sibling_text": "lifeboat hull material and crack hole repair material grp frp laminate is standard light strong corrosion free easily repaired fire retardant resin on fire protected boats aluminium or steel less common why frp no corrosion low maintenance mouldable enclosed shape with built in buoyancy cases", "sibling_family": "", "via": "answer_title", "answer_title": "Lifeboat hull material and crack / hole repair", "cross_family": false } ] }, { "qid": "KOL-2017-05-0089-Q002", "text": "Safeties of the ramp while heaving.", "family": "Auxiliary Equipment", "subtopic": "Winch Brake Rendering Test", "tid": "KOL-2017-05-0089", "tray": "new", "candidates": [ { "answer_id": "ERC-345-005", "score": 0.5668714642524719, "sibling_score": 0.5668714642524719, "answer_score": null, "sibling_qid": "KOL-2017-01-3023-Q004", "sibling_text": "er crane need to be secure befor sailng precautions", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Securing the crane before sailing", "cross_family": false }, { "answer_id": "WIND-WNCH-009", "score": 0.5463918447494507, "sibling_score": 0.5463918447494507, "answer_score": null, "sibling_qid": "KOC-2024-09-0412-Q006", "sibling_text": "windlass safeties", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Windlass / winch safeties", "cross_family": false }, { "answer_id": "WIND-WNCH-014", "score": 0.5435212850570679, "sibling_score": 0.5435212850570679, "answer_score": null, "sibling_qid": "CHE-2026-03-0124-Q005", "sibling_text": "safties in windlass", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Electric winch running slow — fault diagnosis (and bundled items)", "cross_family": false } ] }, { "qid": "KOL-2017-05-0089-Q005", "text": "What provision is present for removal of water from the car decks.", "family": "Cargo Ops - Bulk Carriers", "subtopic": "WIDAS / Smoke Detection", "tid": "KOL-2017-05-0089", "tray": "new", "candidates": [ { "answer_id": "BC-IMSBC-002", "score": 0.5090036392211914, "sibling_score": 0.5090036392211914, "answer_score": null, "sibling_qid": "MUM-2025-07-0343-Q006", "sibling_text": "uperdeck drainage provision in bulk carrier", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "2. 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Thermal expansion arrangements for boiler tubes", "cross_family": true }, { "answer_id": "BLR-TUBE-P01-002", "score": 0.5160062313079834, "sibling_score": 0.5160062313079834, "answer_score": null, "sibling_qid": "MUM-2025-09-2832-Q003", "sibling_text": "construction of tube type cooled straight tubes only", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "03. Types, functions and arrangement of boiler tubes", "cross_family": true } ] }, { "qid": "KOL-2017-05-1294-Q003", "text": "boiler pinch point,", "family": "Boilers - Construction & Components", "subtopic": "Pinch Point", "tid": "KOL-2017-05-1294", "tray": "review", "candidates": [ { "answer_id": "OGEE-RING-001", "score": 0.6831659078598022, "sibling_score": 0.6831659078598022, "answer_score": null, "sibling_qid": "KOL-2017-05-1293-Q003", "sibling_text": "og ring in boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "The ogee ring: what it is, where it sits, its purpose, and how it's formed and connected", "cross_family": false }, { "answer_id": "SH-332-005", "score": 0.6518508791923523, "sibling_score": 0.6518508791923523, "answer_score": null, "sibling_qid": "KOL-2025-07-1999-Q005", "sibling_text": "attemperator in boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Desuperheater / attemperator: what, why, and superheat control", "cross_family": false }, { "answer_id": "FURN-REF-004", "score": 0.6339929699897766, "sibling_score": 0.6339929699897766, "answer_score": null, "sibling_qid": "KOL-2018-12-1434-Q002", "sibling_text": "y collugation added into boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Boiler furnace construction, corrugation, swirl / contraction and furnace mountings", "cross_family": false } ] }, { "qid": "KOL-2017-05-1295-Q004", "text": "Forces & Stresses on liner Secondary refrigeration system & how temp control of cargo holds is done at diff temp.", "family": "Refrigeration & AC", "subtopic": "Reefer Compressor", "tid": "KOL-2017-05-1295", "tray": "review", "candidates": [ { "answer_id": "REF-CYC-008", "score": 0.6967760920524597, "sibling_score": 0.6967760920524597, "answer_score": null, "sibling_qid": "KOL-2018-01-1343-Q003", "sibling_text": "secondary refrigeration what are they other than brine and how containers different temp maintained", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "8. Secondary refrigeration systems, arrangements and advantages", "cross_family": false }, { "answer_id": "REFR-FLT-001", "score": 0.6842554211616516, "sibling_score": 0.6842554211616516, "answer_score": null, "sibling_qid": "MUM-2023-01-2160-Q007", "sibling_text": "how reefer room temperature maintenaned at diff temperatures", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Provision/cold room temperature: will not pull down, runs too low, or will not hold", "cross_family": false }, { "answer_id": "REF-CYC-003", "score": 0.6727622151374817, "sibling_score": 0.6727622151374817, "answer_score": null, "sibling_qid": "MUM-2025-07-1147-Q012", "sibling_text": "how temperature of different reefer room maintained", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "3. Maintaining different rooms at different temperatures from one plant", "cross_family": false } ] }, { "qid": "KOL-2017-05-2129-Q002", "text": "sound telephone working", "family": "General Marine Engineering", "subtopic": "DO Expansion Phone", "tid": "KOL-2017-05-2129", "tray": "new", "candidates": [ { "answer_id": "BDC-P04-03", "score": 0.565019965171814, "sibling_score": 0.565019965171814, "answer_score": null, "sibling_qid": "KOL-2017-07-3961-Q006", "sibling_text": "how telephone working deciding by shine how voltage test in battery he want to listen value of load", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "Battery load test on board — preparation, deciding the load, and reading the result", "cross_family": true }, { "answer_id": "TLGW-330-001", "score": 0.5552159547805786, "sibling_score": 0.5552159547805786, "answer_score": null, "sibling_qid": "KOC-2024-11-1440-Q003", "sibling_text": "telegraph working", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Explain the working of the engine-room telegraph and how a bridge order is received in the ECR", "cross_family": true }, { "answer_id": "DSC-002", "score": 0.4658507704734802, "sibling_score": 0.4658507704734802, "answer_score": null, "sibling_qid": "KOC-2025-09-1574-Q008", "sibling_text": "digital devices working", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a semiconductor, why silicon, and why is it called solid state?", "cross_family": true } ] }, { "qid": "KOL-2017-05-3053-Q004", "text": "Bottom end brg clearance of ae. Told him at bdc through filler gauge but he told cannot take with filer gauge . By lifting the conneting rod and checking lift by dial guage he told not enough space in cranckcase cannot put any lifting arrangement.", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Decarb Checks / Connecting Rod / Bottom End Bearing", "tid": "KOL-2017-05-3053", "tray": "review", "candidates": [ { "answer_id": "AECR-651-004", "score": 0.7549991011619568, "sibling_score": 0.7549991011619568, "answer_score": null, "sibling_qid": "MUM-2026-06-3370-Q002", "sibling_text": "bottom end bearing clearance of auxiliary engines without removing crankcase doors", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "How do you inspect the bottom-end bearing, and how do you take the AE big-end clearance without removing it?", "cross_family": false }, { "answer_id": "AE-CRP-007", "score": 0.7460776567459106, "sibling_score": 0.7460776567459106, "answer_score": null, "sibling_qid": "MUM-2026-05-3331-Q003", "sibling_text": "how to take bottom end bearing clearance of ae", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE big-end / bottom-end bearing — inspection, bedding, nip and crush", "cross_family": false }, { "answer_id": "XHD-BRG-B-004", "score": 0.7405994534492493, "sibling_score": 0.7405994534492493, "answer_score": null, "sibling_qid": "MUM-2026-05-3265-Q007", "sibling_text": "bottom end cross head bearing clearance how to take", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Measuring crosshead bearing and guide-shoe clearances", "cross_family": false } ] }, { "qid": "KOL-2017-06-0093-Q004", "text": "Types of rudder (most interested in semi-balanced rudder)", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2017-06-0093", "tray": "review", "candidates": [ { "answer_id": "SPR-STERN-004", "score": 0.6621309518814087, "sibling_score": 0.6621309518814087, "answer_score": null, "sibling_qid": "MUM-2026-04-0894-Q003", "sibling_text": "what type of rudder i said semi balanced double plated rudder angle of attack stall angle", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Propeller rake & skew", "cross_family": true }, { "answer_id": "SPR-STERN-006", "score": 0.6269840598106384, "sibling_score": 0.6269840598106384, "answer_score": null, "sibling_qid": "MUM-2026-09-3951-Q002", "sibling_text": "types of rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Propeller types & special propulsors", "cross_family": false }, { "answer_id": "TRS-002", "score": 0.6044673323631287, "sibling_score": 0.6044673323631287, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false } ] }, { "qid": "KOL-2017-06-1296-Q001", "text": "Your Engine specification", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOL-2017-06-1296", "tray": "review", "candidates": [ { "answer_id": "ENG-NOM-006", "score": 0.79058438539505, "sibling_score": 0.79058438539505, "answer_score": null, "sibling_qid": "CHE-2026-05-0585-Q001", "sibling_text": "main engine specification complete", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Short-form asks: SMC-C, LMC, and ME vs MC quickly", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.710314154624939, "sibling_score": 0.710314154624939, "answer_score": null, "sibling_qid": "CHE-2026-04-0506-Q003", "sibling_text": "types of engine you worked specifications of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false }, { "answer_id": "MIP-264-003", "score": 0.7076027989387512, "sibling_score": 0.7076027989387512, "answer_score": null, "sibling_qid": "MUM-2026-01-1248-Q002", "sibling_text": "engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Calculate engine power: IHP and BHP, and where each is measured", "cross_family": false } ] }, { "qid": "KOL-2017-06-1296-Q005", "text": "air compressor y we use plate type valves and material", "family": "Air Compressor", "subtopic": "Reciprocating Compressor", "tid": "KOL-2017-06-1296", "tray": "new", "candidates": [ { "answer_id": "MAC-598-001", "score": 0.6354470252990723, "sibling_score": 0.6354470252990723, "answer_score": 0.4954853057861328, "sibling_qid": "KOC-2026-08-2162-Q004", "sibling_text": "compressor valve parts", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "The main air compressor valve — arrangement, parts, and why the construction is so complex", 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Pressure / Fuel Oil Pressure", "tid": "KOL-2017-06-1300", "tray": "review", "candidates": [ { "answer_id": "CR-248-002", "score": 0.6648209095001221, "sibling_score": 0.6648209095001221, "answer_score": 0.5123967289924621, "sibling_qid": "KOC-2026-03-1108-Q010", "sibling_text": "how in me engine fuel injection occurs fuel pump controlled by hydraulic pressure x pressure of hyd oil and fuel oil 250 bar and 1000 bar x how 250 bar generates 1000 bar area is much larger internal as second engineer how you will do a decarb expain detail", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How fuel is injected in electronically controlled ME / RT-flex engines — how rail or hydraulic pressure produces injection", "cross_family": false }, { "answer_id": "CR-248-001", "score": 0.662234902381897, "sibling_score": 0.662234902381897, "answer_score": null, "sibling_qid": "KOL-2022-01-1656-Q002", "sibling_text": "common rail fuel oil injection system details and pressure value how the fule quantity is controlled", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "The common rail fuel injection system — layout, working sequence, rail valves, timing & quantity control", "cross_family": false }, { "answer_id": "FINJ-003", "score": 0.6417669653892517, "sibling_score": 0.6417669653892517, "answer_score": null, "sibling_qid": "KOL-2018-10-1423-Q009", "sibling_text": "how recirculation at stand by engine through injector then draw the slide vv in injector where seat fitted how oil passing", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Sac volume, zero-sac and the slide-type fuel valve development", "cross_family": false } ] }, { "qid": "KOL-2017-07-0095-Q002", "text": "annex -1 standard discharge connection why is provided and size", "family": "MARPOL - Annex I (Oil)", "subtopic": "Standard Discharge Connection", "tid": "KOL-2017-07-0095", "tray": "review", "candidates": [ { "answer_id": "SEW-DISCH-007", "score": 0.7014578580856323, "sibling_score": 0.7014578580856323, "answer_score": 0.5052960753440857, "sibling_qid": "MUM-2026-09-3874-Q007", "sibling_text": "standard discharge connection", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "7. Standard discharge connection (Regulation 10)", "cross_family": false }, { "answer_id": "ISC-329-004", "score": 0.5885560512542725, "sibling_score": 0.5885560512542725, "answer_score": 0.49422154426574705, "sibling_qid": "KOL-2023-10-0783-Q004", "sibling_text": "standard discharge connection international shore coupling difference", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "What is the difference between the SOLAS international shore connection and the MARPOL standard discharge connection?", "cross_family": true }, { "answer_id": "OWS-15PPM-002", "score": 0.5390785336494446, "sibling_score": 0.5390785336494446, "answer_score": null, "sibling_qid": "CHE-2025-08-0051-Q006", "sibling_text": "annex 1 engine room bilges discharge some more", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOL-2017-07-0099-Q003", "text": "ism amendments", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOL-2017-07-0099", "tray": "review", "candidates": [ { "answer_id": "BC-IMSBC-005", "score": 0.6775252223014832, "sibling_score": 0.6775252223014832, "answer_score": 0.34788795113563536, "sibling_qid": "MUM-2026-06-3603-Q001", "sibling_text": "latest amendments in ism and when", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "5. Latest IMSBC Code amendments", "cross_family": false }, { "answer_id": "COT-P02-10", "score": 0.5589485764503479, "sibling_score": 0.5589485764503479, "answer_score": null, "sibling_qid": "KOC-2024-05-0345-Q002", "sibling_text": "ig system amendments", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "State and explain the latest statutory amendments affecting tanker inert-gas systems, including applicability and practical changes on board.", "cross_family": true }, { "answer_id": "ISM-AUDIT-P01-002", "score": 0.5328271985054016, "sibling_score": 0.5328271985054016, "answer_score": null, "sibling_qid": "KOL-2018-09-0221-Q003", "sibling_text": "additional audits in ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM/SMS audits and verifications — types, who conducts them, intervals and validity", "cross_family": false } ] }, { "qid": "KOL-2017-07-0099-Q004", "text": "MLC certificates and what does it signifies ?", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOL-2017-07-0099", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-006", "score": 0.7418919205665588, "sibling_score": 0.7418919205665588, "answer_score": 0.36327378153800965, "sibling_qid": "MUM-2026-06-3656-Q002", "sibling_text": "certificates under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false }, { "answer_id": "CLC-CIV-B-004", "score": 0.48713546991348267, "sibling_score": 0.48713546991348267, "answer_score": null, "sibling_qid": "KOL-2025-09-1038-Q006", "sibling_text": "mlc certificate p i club marine insurance", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Marine insurance and the P&I club: hull cover vs liability cover", "cross_family": true }, { "answer_id": "MLC-WRH-B-008", "score": 0.46435546875, "sibling_score": 0.46435546875, "answer_score": null, "sibling_qid": "KOC-2024-04-0331-Q002", "sibling_text": "mlc medical fitness certificate validity and cross question on it", "sibling_family": "MLC", "via": "sibling", "answer_title": "Medical certificate — requirements, validity, and joining on an expired one", "cross_family": false } ] }, { "qid": "KOL-2017-07-0099-Q005", "text": "what is there in dmlc part 1", "family": "MLC", "subtopic": "MLC / DMLC / Work-Rest", "tid": "KOL-2017-07-0099", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.635255753993988, "sibling_score": 0.635255753993988, "answer_score": 0.32486746907234193, "sibling_qid": "MUM-2026-06-3623-Q001", "sibling_text": "what dmlc 1 contains", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "ISM-ELEM-003", "score": 0.2631272926926613, "sibling_score": null, "answer_score": 0.2631272926926613, "sibling_qid": "", "sibling_text": "elements chapters structure of the ism code part a implementation the 12 elements 1 general 1 1 definitions 1 2 objectives 1 3 application 1 4 functional requirements for an sms", "sibling_family": "", "via": "answer_title", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": false }, { "answer_id": "PUR-BOWL-P03-FINAL-1-001", "score": 0.24146959483623504, "sibling_score": null, "answer_score": 0.24146959483623504, "sibling_qid": "", "sibling_text": "1 disc stack separation zone and what the purifier removes", "sibling_family": "", "via": "answer_title", "answer_title": "1. Disc Stack, Separation Zone and What the Purifier Removes", "cross_family": false } ] }, { "qid": "KOL-2017-07-0100-Q001", "text": "About classification society, class certificate, how class is issued to a new build ship", "family": "Surveys - Statutory", "subtopic": "PSC / Flag / RO / CIC / MoU", "tid": "KOL-2017-07-0100", "tray": "review", "candidates": [ { "answer_id": "IACS-324-002", "score": 0.7264204025268555, "sibling_score": 0.7264204025268555, "answer_score": null, "sibling_qid": "KOC-2023-05-0192-Q004", "sibling_text": "y ship need to be classed classification society functions", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "2. What is a classification society, why does a ship need class, and what are its functions?", "cross_family": false }, { "answer_id": "CERT-LIST-P01-001", "score": 0.7254024147987366, "sibling_score": 0.7254024147987366, "answer_score": null, "sibling_qid": "KOL-2020-06-3340-Q004", "sibling_text": "which certificate will tell u about the class to which ship is classified", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "List the statutory certificates carried onboard a ship.", "cross_family": false }, { "answer_id": "CERT-LIST-P02-005", "score": 0.6868881583213806, "sibling_score": 0.6868881583213806, "answer_score": 0.5796301186084747, "sibling_qid": "MUM-2025-11-2475-Q001", "sibling_text": "why class certificate is there for ship", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Class certificate / classification certificate", "cross_family": false } ] }, { "qid": "KOL-2017-07-0101-Q003", "text": "3 time period of rolling", "family": "", "subtopic": "Static / Dynamic Stability", "tid": "KOL-2017-07-0101", "tray": "new", "candidates": [ { "answer_id": "BK-002", "score": 0.6045070290565491, "sibling_score": 0.6045070290565491, "answer_score": null, "sibling_qid": "KOC-2022-10-0107-Q006", "sibling_text": "how it reduces rolling explain with time period of rolling equation", "sibling_family": "", "via": "sibling", "answer_title": "How does a bilge keel reduce rolling, and how does it relate to roll period and radius of gyration?", "cross_family": false }, { "answer_id": "PAR-ROLL-001", "score": 0.513670802116394, "sibling_score": 0.513670802116394, "answer_score": null, "sibling_qid": "KOL-2021-12-0578-Q003", "sibling_text": "parametric rolling relation between rolling and pitching periods", "sibling_family": "", "via": "sibling", "answer_title": "01. What is parametric rolling?", "cross_family": false }, { "answer_id": "AVR-EXC-H-003", "score": 0.4958277940750122, "sibling_score": 0.4958277940750122, "answer_score": null, "sibling_qid": "MUM-2026-03-2000-Q002", "sibling_text": "avr fluctuation i said 3 5", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Voltage regulation, dip, droop and transient response", "cross_family": false } ] }, { "qid": "KOL-2017-07-0103-Q003", "text": "Factors affecting period of roll", "family": "", "subtopic": "Static / Dynamic Stability", "tid": "KOL-2017-07-0103", "tray": "new", "candidates": [ { "answer_id": "BK-002", "score": 0.639674961566925, "sibling_score": 0.639674961566925, "answer_score": 0.3568105563521385, "sibling_qid": "KOL-2026-05-4185-Q004", "sibling_text": "period of roll", "sibling_family": "", "via": "sibling", "answer_title": "How does a bilge keel reduce rolling, and how does it relate to roll period and radius of gyration?", "cross_family": false }, { "answer_id": "PAR-ROLL-001", "score": 0.5546548366546631, "sibling_score": 0.5546548366546631, "answer_score": 0.3423461765050888, "sibling_qid": "KOL-2021-12-0578-Q003", "sibling_text": "parametric rolling relation between rolling and pitching periods", "sibling_family": "", "via": "sibling", "answer_title": "01. What is parametric rolling?", "cross_family": false }, { "answer_id": "PAR-ROLL-004", "score": 0.5311038494110107, "sibling_score": 0.5311038494110107, "answer_score": 0.393288978934288, "sibling_qid": "KOL-2023-11-0784-Q002", "sibling_text": "prismatic rolling factor on which it depend", "sibling_family": "", "via": "sibling", "answer_title": "04. Parametric vs synchronous rolling (and the ‘sequential / prismatic’ variants)", "cross_family": false } ] }, { "qid": "KOL-2017-07-1302-Q002", "text": "Type of engine", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOL-2017-07-1302", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.8006401062011719, "sibling_score": 0.8006401062011719, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.7930276393890381, "sibling_score": 0.7930276393890381, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-001", "score": 0.45252704024314877, "sibling_score": null, "answer_score": 0.45252704024314877, "sibling_qid": "", "sibling_text": "1 turbocharger type main engine vs generator engine compressor is centrifugal in both cases only the turbine type differs large slow speed main engine axial flow turbine single stage constant pressure system", "sibling_family": "", "via": "answer_title", "answer_title": "1. Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "KOL-2017-07-1305-Q002", "text": "what is meant by pinch point in boiler?", "family": "Boilers - Construction & Components", "subtopic": "Pinch Point", "tid": "KOL-2017-07-1305", "tray": "new", "candidates": [ { "answer_id": "BLR-TUBE-P02-002", "score": 0.5434942841529846, "sibling_score": 0.5434942841529846, "answer_score": null, "sibling_qid": "KOL-2018-06-3158-Q003", "sibling_text": "plugging of boiler tube", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Plugging a leaking boiler tube (temporary arrest)", "cross_family": false }, { "answer_id": "ECON-EGB-002", "score": 0.5355295538902283, "sibling_score": 0.5355295538902283, "answer_score": null, "sibling_qid": "KOL-2024-12-1794-Q001", "sibling_text": "back pressure of boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Purpose, efficiency, heat recovery, turn ratio, steam quality & back-pressure", "cross_family": false }, { "answer_id": "OGEE-RING-001", "score": 0.5329064130783081, "sibling_score": 0.5329064130783081, "answer_score": null, "sibling_qid": "KOC-2025-10-2079-Q003", "sibling_text": "og ring in boiler explain its function", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "The ogee ring: what it is, where it sits, its purpose, and how it's formed and connected", "cross_family": false } ] }, { "qid": "KOL-2017-07-1305-Q004", "text": "why cylinder liner cooling bores are tangent? 5.", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "KOL-2017-07-1305", "tray": "new", "candidates": [ { "answer_id": "PC-TP-003", "score": 0.48718324303627014, "sibling_score": 0.48718324303627014, "answer_score": null, "sibling_qid": "KOC-2023-07-0925-Q009", "sibling_text": "how piston crown cooling taking place lube circuit from telescopic pipe where it return back", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston crown cooling oil circuit and where the oil returns", "cross_family": false }, { "answer_id": "CYL-LINER-P01-001", "score": 0.4659919738769531, "sibling_score": 0.4659919738769531, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001S4", "sibling_text": "liner cooling liner calibration", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Carrying out main-engine liner calibration (gauging)", "cross_family": false }, { "answer_id": "CYL-LINER-P02-004", "score": 0.46436476707458496, "sibling_score": 0.46436476707458496, "answer_score": null, "sibling_qid": "KOL-2020-03-1531-Q003", "sibling_text": "liner ovality piston alignment", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L4 · T044-PART_02-G004High", "cross_family": false } ] }, { "qid": "KOL-2017-07-1306-Q005", "text": "Where bending stress acts in Liner?", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "KOL-2017-07-1306", "tray": "new", "candidates": [ { "answer_id": "CYL-LINER-P03-002", "score": 0.5179217457771301, "sibling_score": 0.5179217457771301, "answer_score": null, "sibling_qid": "KOL-2022-09-1712-Q003", "sibling_text": "liner crack location and reasons", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Detecting and confirming a cracked or leaking liner — and pinning the unit", "cross_family": false }, { "answer_id": "CYL-LINER-P02-009", "score": 0.49740439653396606, "sibling_score": 0.49740439653396606, "answer_score": null, "sibling_qid": "MUM-2021-09-1010-Q007", "sibling_text": "what is ridging of liner", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L9 · T044-PART_02-G009High", "cross_family": false }, { "answer_id": "CYL-LINER-P04-009", "score": 0.49448806047439575, "sibling_score": 0.49448806047439575, "answer_score": 0.3636787384748459, "sibling_qid": "MUM-2021-02-1009-Q003", "sibling_text": "why liner is free at one end", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Why the liner is free at one end", "cross_family": false } ] }, { "qid": "KOL-2017-07-1307-Q005", "text": "Bed plate construction detail. Why cast steel for transverse.", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Modern Bedplate Construction", "tid": "KOL-2017-07-1307", "tray": "new", "candidates": [ { "answer_id": "FWFB-P02-007", "score": 0.5957278609275818, "sibling_score": 0.5957278609275818, "answer_score": null, "sibling_qid": "MUM-2026-05-3306-Q002", "sibling_text": "bedplate material types construction transverse longitudinal 3 girder etc material", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Transverse and longitudinal girders: arrangement and purpose", "cross_family": true }, { "answer_id": "BED-CHOCK-001", "score": 0.48351117968559265, "sibling_score": 0.48351117968559265, "answer_score": null, "sibling_qid": "MUM-2023-08-0952-Q004", "sibling_text": "how to fix bed plate on ship", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "How is the main-engine bedplate fixed to the ship's structure?", "cross_family": false }, { "answer_id": "SHELL-PLT-B-002", "score": 0.4830779433250427, "sibling_score": 0.4830779433250427, "answer_score": null, "sibling_qid": "KOL-2025-09-1046-Q002", "sibling_text": "steeler plate", "sibling_family": "", "via": "sibling", "answer_title": "Stealer plate and strake nesting", "cross_family": false } ] }, { "qid": "KOL-2017-07-1314-Q001", "text": "Motor", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOL-2017-07-1314", "tray": "review", "candidates": [ { "answer_id": "IR-TEST-B-002", "score": 0.766153872013092, "sibling_score": 0.766153872013092, "answer_score": null, "sibling_qid": "MUM-2026-03-2952-Q006", "sibling_text": "motor", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "IR test of a low-voltage motor — the standard megger procedure", "cross_family": true }, { "answer_id": "DCMOT-CMU-B-001", "score": 0.691442608833313, "sibling_score": 0.691442608833313, "answer_score": null, "sibling_qid": "KOC-2023-07-1267-Q008", "sibling_text": "dc motor speed motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "DC motor speed control — the three methods", "cross_family": true }, { "answer_id": "SDC-001", "score": 0.6908785700798035, "sibling_score": 0.6908785700798035, "answer_score": null, "sibling_qid": "KOC-2021-11-0036-Q013", "sibling_text": "motor connection", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Why is the alternator star connected and the motor delta connected?", "cross_family": true } ] }, { "qid": "KOL-2017-07-1314-Q002", "text": "Types of Engines worked. Difference between VIT and Super VIT. Draw Super VIT arrangement for your ship.", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOL-2017-07-1314", "tray": "new", "candidates": [ { "answer_id": "VIT-MECH-D-001", "score": 0.6029862761497498, "sibling_score": 0.6029862761497498, "answer_score": 0.4542972385883331, "sibling_qid": "KOL-2021-10-1632-Q001", "sibling_text": "1 engine type super vit", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Super-VIT — construction and working (double-thread / upper-lower thread)", "cross_family": true }, { "answer_id": "VIT-MECH-C-002", "score": 0.5979686975479126, "sibling_score": 0.5979686975479126, "answer_score": null, "sibling_qid": "KOL-2021-01-1572-Q001", "sibling_text": "type of engine vit in sulzer rta", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Sulzer RTA VIT — suction- and spill-valve controlled injection", "cross_family": true }, { "answer_id": "AE-CRP-005", "score": 0.5889748930931091, "sibling_score": 0.5889748930931091, "answer_score": null, "sibling_qid": "MUM-2026-09-3882-Q001", "sibling_text": "introduction types of ship main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "KOL-2017-07-1852-Q002", "text": "liner bore cooling and latest developments", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "KOL-2017-07-1852", "tray": "review", "candidates": [ { "answer_id": "CYL-LINER-P04-007", "score": 0.651707112789154, "sibling_score": 0.651707112789154, "answer_score": 0.46608248353004456, "sibling_qid": "MUM-2025-11-2866-Q010", "sibling_text": "latest developments in cyl liner he wants to here insulated mid section for reduce cooling effect to prevent moisture", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Latest developments — cold-corrosion control & the “insulated” liner", "cross_family": false }, { "answer_id": "CYL-LINER-P01-001", "score": 0.6135850548744202, "sibling_score": 0.6135850548744202, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001S4", "sibling_text": "liner cooling liner calibration", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Carrying out main-engine liner calibration (gauging)", "cross_family": false }, { "answer_id": "CC-294-003", "score": 0.5935747027397156, "sibling_score": 0.5935747027397156, "answer_score": 0.4290019452571869, "sibling_qid": "KOL-2025-07-1820-Q005", "sibling_text": "latest advancement in liner to reduce cold corrosion", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Preventing it — LDCL and keeping the wall warm", "cross_family": true } ] }, { "qid": "KOL-2017-07-1852-Q003", "text": "bed plate and foundation construction and material of chocks", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Bedplate / Chocks / HDB", "tid": "KOL-2017-07-1852", "tray": "new", "candidates": [ { "answer_id": "CHK-RM-002", "score": 0.586418867111206, "sibling_score": 0.586418867111206, "answer_score": null, "sibling_qid": "KOL-2021-09-3456-Q005", "sibling_text": "what are the different types of foundation chocks in main engine how are resin chocks built in place and advantages", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Explain resin chocking — what it is, how it is done, and how resin chocks are cast and poured.", "cross_family": false }, { "answer_id": "FWFB-P02-007", "score": 0.5568639039993286, "sibling_score": 0.5568639039993286, "answer_score": null, "sibling_qid": "MUM-2026-05-3306-Q002", "sibling_text": "bedplate material types construction transverse longitudinal 3 girder etc material", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Transverse and longitudinal girders: arrangement and purpose", "cross_family": true }, { "answer_id": "BED-CHOCK-005", "score": 0.5425655841827393, "sibling_score": 0.5425655841827393, "answer_score": null, "sibling_qid": "MUM-2025-11-2876-Q006", "sibling_text": "arrangement of chocks in me side end and support", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Explain the HDB, jack-bolt and chock arrangement for a main-engine bedplate.", "cross_family": false } ] }, { "qid": "KOL-2017-07-2136-Q004", "text": "High voltage safety. 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Draw its symbol, explain its working principle, and draw and explain its characteristic curve including the zener (breakdown) voltage.", "cross_family": false }, { "answer_id": "EPC-P01-02", "score": 0.5572624802589417, "sibling_score": 0.5572624802589417, "answer_score": 0.408515040576458, "sibling_qid": "KOC-2023-12-1314-Q014", "sibling_text": "types of diodes working how to test diode", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Types of diodes, and where diodes are used on board", "cross_family": false } ] }, { "qid": "KOL-2017-07-2141-Q004", "text": "for a given motor.\tCapacity of motor until which dol is suitable to use", "family": "Electrical - Motors & Starters", "subtopic": "DOL Starter", "tid": "KOL-2017-07-2141", "tray": "new", "candidates": [ { "answer_id": "STARTER-DEC-B-003", "score": 0.6326326131820679, "sibling_score": 0.6326326131820679, "answer_score": 0.4532954603433609, "sibling_qid": "MUM-2023-05-1388-Q002", "sibling_text": "dol starter explian rating till waht range it can be used", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "DOL starter — use, current, range and limits", "cross_family": false }, { "answer_id": "STARTER-DEC-B-001", "score": 0.6266433000564575, "sibling_score": 0.6266433000564575, "answer_score": null, "sibling_qid": "MUM-2026-07-3777-Q002", "sibling_text": "which range of motors is dol starter used", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Selecting the right starter for a motor", "cross_family": false }, { "answer_id": "STARTER-DEC-B-002", "score": 0.6090900897979736, "sibling_score": 0.6090900897979736, "answer_score": null, "sibling_qid": "KOC-2024-11-1425-Q001", "sibling_text": "dol starting current how much", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Why a starter is needed & reducing starting current", "cross_family": false } ] }, { "qid": "KOL-2017-07-2141-Q007", "text": "connection of a switch to a motor", "family": "Electrical - Motors & Starters", "subtopic": "Starter Panel / Control Circuit", "tid": "KOL-2017-07-2141", "tray": "review", "candidates": [ { "answer_id": "SDC-001", "score": 0.6878212094306946, "sibling_score": 0.6878212094306946, "answer_score": null, "sibling_qid": "KOC-2021-11-0036-Q013", "sibling_text": "motor connection", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Why is the alternator star connected and the motor delta connected?", "cross_family": true }, { "answer_id": "CONT-317-003", "score": 0.6319112181663513, "sibling_score": 0.6319112181663513, "answer_score": null, "sibling_qid": "MUM-2026-05-3170-Q005", "sibling_text": "motor came after rewinding no all terminals signs erased how will you connect", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Continuity to confirm terminal identity after overhaul or rewind", "cross_family": false }, { "answer_id": "REV-MOT-BF67-001", "score": 0.628445565700531, "sibling_score": 0.628445565700531, "answer_score": null, "sibling_qid": "KOC-2025-10-1598-Q005", "sibling_text": "single phase motor terminal connection for reversing", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "How do you reverse a single-phase induction motor — what is the wiring connection?", "cross_family": false } ] }, { "qid": "KOL-2017-07-3067-Q001", "text": "what are the 3 salts formed in FWG?", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "KOL-2017-07-3067", "tray": "new", "candidates": [ { "answer_id": "FWG-RO-002", "score": 0.4423016905784607, "sibling_score": 0.4423016905784607, "answer_score": null, "sibling_qid": "MUM-2024-06-1081-Q005", "sibling_text": "fwg salinity high", "sibling_family": "Fresh Water & Domestic Systems", "via": "sibling", "answer_title": "The FWG salinity alarm keeps sounding. What are the reasons for high salinity?", "cross_family": true }, { "answer_id": "BLR-CHEM-008", "score": 0.4332238435745239, "sibling_score": 0.4332238435745239, "answer_score": null, "sibling_qid": "KOL-2022-07-1701-Q005", "sibling_text": "soluble n insoluble salts", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "8. Boiler-water contaminants, hardness, scale and sludge", "cross_family": true }, { "answer_id": "BWTEST-C-001", "score": 0.37935030460357666, "sibling_score": 0.37935030460357666, "answer_score": null, "sibling_qid": "KOL-2018-07-1395-Q003", "sibling_text": "hardness non hardness alkaline and non alkaline salts", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "pH / acidity control — why pH is held, and what acidic or high-pH water means", "cross_family": true } ] }, { "qid": "KOL-2017-07-3067-Q003", "text": "why in air compressor piston hit cylinder head, even when the is bumping clearance available? 4 . what causes wear of wear ring in centrifugal pump? 5.", "family": "Air Compressor", "subtopic": "Reciprocating Compressor", "tid": "KOL-2017-07-3067", "tray": "review", "candidates": [ { "answer_id": "MAC-353-008", "score": 0.6994720101356506, "sibling_score": 0.6994720101356506, "answer_score": null, "sibling_qid": "CHE-2026-04-0506-Q001S4", "sibling_text": "air compressor bumping clearance said lead ball method not accepting it", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Taking bumping clearance without opening the cylinder (lead-ball method)", "cross_family": false }, { "answer_id": "MAC-598-003", "score": 0.696517288684845, "sibling_score": 0.696517288684845, "answer_score": null, "sibling_qid": "MUM-2022-10-2712-Q005", "sibling_text": "compressor efficiency drop reasons for it how you take bumping clearance in it", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "The compressor is not filling the bottle, or is taking longer than usual, or running continuously on low amps — checks and actions as 2/E", "cross_family": false }, { "answer_id": "MAC-598-007", "score": 0.668147623538971, "sibling_score": 0.668147623538971, "answer_score": null, "sibling_qid": "MUM-2025-12-2898-Q010", "sibling_text": "main air compressor piston siezed what is the causes", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "The main air compressor piston has seized — what are the causes?", "cross_family": false } ] }, { "qid": "KOL-2017-07-3068-Q002", "text": "Grease- How made and how differentiated between different types of Grease", "family": "Lube Oil System", "subtopic": "Grease / Dropping Point", "tid": "KOL-2017-07-3068", "tray": "new", "candidates": [ { "answer_id": "LO-TEST-P01-005", "score": 0.5666704773902893, "sibling_score": 0.5666704773902893, "answer_score": null, "sibling_qid": "KOC-2026-09-2182-Q012", "sibling_text": "gear oil properties", "sibling_family": "Lube Oil System", "via": "sibling", "answer_title": "Lube-oil properties, types and selection by duty", "cross_family": false }, { "answer_id": "SYN-LUBE-001", "score": 0.5580657720565796, "sibling_score": 0.5580657720565796, "answer_score": 0.4784265011548996, "sibling_qid": "KOC-2021-07-0920-Q004", "sibling_text": "how lube oil is produced what is synthetic lube what type of oil is cyl oil lube", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "SL-001 – What synthetic lube oil is, how it is made, and its base stocks", "cross_family": true }, { "answer_id": "ALPHA-LUB-A-002", "score": 0.5393394827842712, "sibling_score": 0.5393394827842712, "answer_score": null, "sibling_qid": "CHE-2025-11-0087-Q012", "sibling_text": "distinguishing between conventional and alpha lubrication", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Advantages and comparison with conventional cylinder lubrication", "cross_family": true } ] }, { "qid": "KOL-2017-07-3068-Q003", "text": "Bottom end bearing clearance of Auxiliary Engine how ll u take", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Decarb Checks / Connecting Rod / Bottom End Bearing", "tid": "KOL-2017-07-3068", "tray": "review", "candidates": [ { "answer_id": "AECR-651-004", "score": 0.8065089583396912, "sibling_score": 0.8065089583396912, "answer_score": 0.5411451756954193, "sibling_qid": "MUM-2026-06-3370-Q002", "sibling_text": "bottom end bearing clearance of auxiliary engines without removing crankcase doors", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "How do you inspect the bottom-end bearing, and how do you take the AE big-end clearance without removing it?", "cross_family": false }, { "answer_id": "BEB-B-002", "score": 0.7595257759094238, "sibling_score": 0.7595257759094238, "answer_score": 0.5745213180780411, "sibling_qid": "CHE-2026-05-0569-Q012", "sibling_text": "main engine all bearing clearance value how will you take bottom end bearing clearance", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Bottom End Bearing — Clearance Measurement", "cross_family": false }, { "answer_id": "AE-CRP-007", "score": 0.7470293045043945, "sibling_score": 0.7470293045043945, "answer_score": null, "sibling_qid": "MUM-2026-09-3971-Q013", "sibling_text": "ae bottom end bearing clearance", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE big-end / bottom-end bearing — inspection, bedding, nip and crush", "cross_family": false } ] }, { "qid": "KOL-2017-07-3069-Q002", "text": "How to take big end bearing clearance for AE within 30 minutes.", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Decarb Checks / Connecting Rod / Bottom End Bearing", "tid": "KOL-2017-07-3069", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-007", "score": 0.7393790483474731, "sibling_score": 0.7393790483474731, "answer_score": 0.5024439990520477, "sibling_qid": "KOC-2025-08-1048-Q013", "sibling_text": "ae big end bearing clearance measurement procedure", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE big-end / bottom-end bearing — inspection, bedding, nip and crush", "cross_family": false }, { "answer_id": "AECR-651-004", "score": 0.7032777667045593, "sibling_score": 0.7032777667045593, "answer_score": 0.516508463025093, "sibling_qid": "MUM-2026-05-3226-Q001", "sibling_text": "how will you take the bottom end bearing clearance of ae without removing bearing", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "How do you inspect the bottom-end bearing, and how do you take the AE big-end clearance without removing it?", "cross_family": false }, { "answer_id": "AE-CSB-346-003", "score": 0.6725628972053528, "sibling_score": 0.6725628972053528, "answer_score": null, "sibling_qid": "KOC-2023-09-2041-Q012", "sibling_text": "ae thrust bearing clearance how to take", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Checking / measuring auxiliary-engine thrust-bearing clearance (end float)", "cross_family": false } ] }, { "qid": "KOL-2017-07-3069-Q004", "text": "What is grease and mention the tests for classifying grease?", "family": "Lube Oil System", "subtopic": "Grease / Dropping Point", "tid": "KOL-2017-07-3069", "tray": "new", "candidates": [ { "answer_id": "LO-TEST-P01-001", "score": 0.5570545792579651, "sibling_score": 0.5570545792579651, "answer_score": 0.37442575246095655, "sibling_qid": "MUM-2026-09-3880-Q004", "sibling_text": "lube oil test", "sibling_family": "Lube Oil System", "via": "sibling", "answer_title": "Onboard lube-oil tests and the viscosity test", "cross_family": false }, { "answer_id": "LO-TEST-P01-005", "score": 0.4824574291706085, "sibling_score": 0.4824574291706085, "answer_score": null, "sibling_qid": "KOC-2026-09-2182-Q012", "sibling_text": "gear oil properties", "sibling_family": "Lube Oil System", "via": "sibling", "answer_title": "Lube-oil properties, types and selection by duty", "cross_family": false }, { "answer_id": "LO-TEST-P01-003", "score": 0.4808122515678406, "sibling_score": 0.4808122515678406, "answer_score": null, "sibling_qid": "MUM-2026-09-3915-Q008", "sibling_text": "testing carried out on lube oil of ae", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Reading a shore analysis report: metals, FTIR and red flags", "cross_family": true } ] }, { "qid": "KOL-2017-07-3071-Q002", "text": "departure checks before leaving port", "family": "2-Stroke - Operations & Casualty", "subtopic": "ER Round", "tid": "KOL-2017-07-3071", "tray": "review", "candidates": [ { "answer_id": "STG-055-C-002", "score": 0.6502126455307007, "sibling_score": 0.6502126455307007, "answer_score": null, "sibling_qid": "KOC-2023-03-0152-Q004", "sibling_text": "s g pre departure checks", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "SOLAS steering-gear requirements, tests and drills", "cross_family": true }, { "answer_id": "DDHSC-004", "score": 0.6243564486503601, "sibling_score": 0.6243564486503601, "answer_score": 0.43386816680431367, "sibling_qid": "KOC-2023-04-0180-Q011", "sibling_text": "dry dock departure checks drydock checklist", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "What checks are carried out after docking, and what are the first checks once the ship is out of dock?", "cross_family": true }, { "answer_id": "COT-P03-05", "score": 0.616683840751648, "sibling_score": 0.616683840751648, "answer_score": null, "sibling_qid": "MUM-2026-02-0733-Q002", "sibling_text": "2 before arriving to port what all alarms and trips to be checked for cargo discharging", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Alarms, trips and interlocks of the IG and cargo-pumping systems tested before discharge — and how, safely", "cross_family": true } ] }, { "qid": "KOL-2017-07-3079-Q003", "text": "FWG distillate pump suction lost,reasons and action.", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "KOL-2017-07-3079", "tray": "new", "candidates": [ { "answer_id": "VAC-COND-002", "score": 0.6102762818336487, "sibling_score": 0.6102762818336487, "answer_score": 0.5032792448997497, "sibling_qid": "MUM-2026-07-3769-Q011", "sibling_text": "vacuum condenser loosed suction reason", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Low vacuum, suction loss and failure to build vacuum — the reasons", "cross_family": false }, { "answer_id": "PPS-622-004", "score": 0.6076006889343262, "sibling_score": 0.6076006889343262, "answer_score": 0.4775075078010559, "sibling_qid": "CHE-2026-08-3890-Q004", "sibling_text": "bilge reciprocating pump loses suction reasons", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "The bilge or ballast pump is not taking suction — reasons, how to identify the problem, how to rectify it. What does the suction gauge read, and what is suction head?", "cross_family": true }, { "answer_id": "PCD-P05-04", "score": 0.5976361632347107, "sibling_score": 0.5976361632347107, "answer_score": null, "sibling_qid": "KOC-2026-08-2161-Q004", "sibling_text": "gear pump not taking suction reason", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Gear pump not developing pressure or not discharging — reasons and rectification", "cross_family": true } ] }, { "qid": "KOL-2017-07-3961-Q005", "text": "one generator kw not same with other one . Reason", "family": "Electrical - Generator & Alternator", "subtopic": "Load Sharing Imbalance", "tid": "KOL-2017-07-3961", "tray": "review", "candidates": [ { "answer_id": "LS-IMB-A-001", "score": 0.7819046974182129, "sibling_score": 0.7819046974182129, "answer_score": 0.3500793695449829, "sibling_qid": "KOL-2025-11-2905-Q002", "sibling_text": "two generators running in parallel but different kw reason", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Two paralleled generators sharing unequal load — cause and correction", "cross_family": false }, { "answer_id": "GEN-LSI-B-001", "score": 0.661770224571228, "sibling_score": 0.661770224571228, "answer_score": 0.39474893659353255, "sibling_qid": "KOL-2025-12-2927-Q002", "sibling_text": "two generators are running in parallel voltage same current same but kw different reason", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01. Two alternators in parallel — same kW but different current and power factor: cause and correction", "cross_family": false }, { "answer_id": "PF-C-002", "score": 0.378741130232811, "sibling_score": null, "answer_score": 0.378741130232811, "sibling_qid": "", "sibling_text": "two alternators in parallel same kw different power factor cause and action", "sibling_family": "", "via": "answer_title", "answer_title": "Two alternators in parallel — same kW, different power factor: cause and action", "cross_family": false } ] }, { "qid": "KOL-2017-08-0106-Q002", "text": "crew joined in which time u will condyct fire n abandon ship drill", "family": "ISM Code", "subtopic": "Joining Ship Handover", "tid": "KOL-2017-08-0106", "tray": "new", "candidates": [ { "answer_id": "ISM-AUD-P02-004", "score": 0.6256580352783203, "sibling_score": 0.6256580352783203, "answer_score": null, "sibling_qid": "KOC-2026-02-0799-Q015", "sibling_text": "when a junior join in ship what all u do familiarise him about means of escape alarm sounds especially co2 alarm sounds", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "SMS contents, manuals, documents and drill records onboard", "cross_family": false }, { "answer_id": "ISM-2E-B-002", "score": 0.559710681438446, "sibling_score": 0.559710681438446, "answer_score": null, "sibling_qid": "CHE-2025-08-0199-Q001", "sibling_text": "as 2 nd you take over ship", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "B2. Joining or taking over a ship and confirming ISM/SMS is followed", "cross_family": false }, { "answer_id": "FIRE-P04-05", "score": 0.558163046836853, "sibling_score": 0.558163046836853, "answer_score": null, "sibling_qid": "MUM-2023-11-0149-Q006", "sibling_text": "fire on deck in drydock your actions as 2nd engineer step by step", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fire in dry dock / alongside repair — 2/E stepwise actions", "cross_family": true } ] }, { "qid": "KOL-2017-08-0107-Q007", "text": "5>iacs ( everything about it; how it frms and works, what it regulates and how, dont know the true answers, will find out and let you know)", "family": "Surveys - Statutory", "subtopic": "PSC / Flag / RO / CIC / MoU", "tid": "KOL-2017-08-0107", "tray": "new", "candidates": [ { "answer_id": "IACS-324-001", "score": 0.5378502011299133, "sibling_score": 0.5378502011299133, "answer_score": 0.4173082247376442, "sibling_qid": "KOL-2024-10-0870-Q002", "sibling_text": "iacs and it s work ics", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "1. What is IACS and what are its functions?", "cross_family": false }, { "answer_id": "IMO-5PIL-001", "score": 0.4361173212528229, "sibling_score": 0.4361173212528229, "answer_score": null, "sibling_qid": "MUM-2025-08-0382-Q013", "sibling_text": "imo structure told him 5 main bodes and various committees", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Structure of IMO — the main organs", "cross_family": true }, { "answer_id": "IAPP-595-003", "score": 0.35470736920833584, "sibling_score": null, "answer_score": 0.35470736920833584, "sibling_qid": "", "sibling_text": "under which regulation does the iapp certificate come and who issues it annex vi chapter 2 survey certification and means of control reg 5 surveys reg 6 issue or endorsement reg 7 issue by another party reg 8 form appendix i reg 9 duration and validity reg 10 port state control on operational requirements reg 11 detection of violations", "sibling_family": "", "via": "answer_title", "answer_title": "Under which regulation does the IAPP certificate come, and who issues it?", "cross_family": false } ] }, { "qid": "KOL-2017-08-0108-Q002", "text": "when we used hopper tank for ballasting.", "family": "Cargo Ops - Bulk Carriers", "subtopic": "Heavy Weather Ballast", "tid": "KOL-2017-08-0108", "tray": "review", "candidates": [ { "answer_id": "BC-HOPPER-G-002", "score": 0.7033968567848206, "sibling_score": 0.7033968567848206, "answer_score": 0.5163480103015899, "sibling_qid": "KOL-2026-05-4216-Q001", "sibling_text": "hopper tank ballasting condition", "sibling_family": "", "via": "sibling", "answer_title": "Ballasting the upper hopper / topside tank — when and why", "cross_family": false }, { "answer_id": "BC-HOPPER-G-001", "score": 0.6429945230484009, "sibling_score": 0.6429945230484009, "answer_score": 0.45950052738189695, "sibling_qid": "KOL-2017-03-0075-Q003", "sibling_text": "fn of hopper tank", "sibling_family": "", "via": "sibling", "answer_title": "Hopper and topside tanks — what they are and their purpose", "cross_family": false }, { "answer_id": "BC-IMSBC-003", "score": 0.6416060328483582, "sibling_score": 0.6416060328483582, "answer_score": 0.5186613261699676, "sibling_qid": "KOL-2025-08-1011-Q002", "sibling_text": "upper hopper and lower hopper tank at what condition upper hopper tank loaded and so many cross questions", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "3. Topside, upper hopper and lower hopper tanks", "cross_family": false } ] }, { "qid": "KOL-2017-08-0109-Q001", "text": "iacs how form and its function.", "family": "Surveys - Statutory", "subtopic": "PSC / Flag / RO / CIC / MoU", "tid": "KOL-2017-08-0109", "tray": "new", "candidates": [ { "answer_id": "IACS-324-001", "score": 0.5725329518318176, "sibling_score": 0.5725329518318176, "answer_score": 0.3778749033808708, "sibling_qid": "KOC-2023-09-0220-Q003", "sibling_text": "iacs function", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "1. What is IACS and what are its functions?", "cross_family": false }, { "answer_id": "ICCP-119-P01-001", "score": 0.3907639980316162, "sibling_score": 0.3907639980316162, "answer_score": 0.2703394830226898, "sibling_qid": "MUM-2025-09-1642-Q004", "sibling_text": "function of iccp", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP — purpose, principle and basic working", "cross_family": true }, { "answer_id": "PSC-004", "score": 0.39014047384262085, "sibling_score": 0.39014047384262085, "answer_score": null, "sibling_qid": "KOC-2024-08-0398-Q019", "sibling_text": "wat is form b and form a", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "4. PSC documents: Form A, Form B, action codes, suspension and detention", "cross_family": false } ] }, { "qid": "KOL-2017-08-0109-Q002", "text": "what are the documention to be done after fire drill.", "family": "ISM Code", "subtopic": "SMS / Functional Requirements", "tid": "KOL-2017-08-0109", "tray": "new", "candidates": [ { "answer_id": "ISM-AUD-P02-004", "score": 0.5641850233078003, "sibling_score": 0.5641850233078003, "answer_score": null, "sibling_qid": "KOC-2024-02-0301-Q014", "sibling_text": "drills specified in sms explained fire abandon enclosed emergency steering as per lsa code", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "SMS contents, manuals, documents and drill records onboard", "cross_family": false }, { "answer_id": "FCP-001", "score": 0.5508817434310913, "sibling_score": 0.5508817434310913, "answer_score": null, "sibling_qid": "KOL-2019-08-0315-Q004", "sibling_text": "fire plan location information etc", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "What is the fire control plan, and what does it show — including bulkhead types and escape routes?", "cross_family": true }, { "answer_id": "UPT-FIRE-002", "score": 0.5406713485717773, "sibling_score": 0.5406713485717773, "answer_score": null, "sibling_qid": "KOC-2023-03-0176-Q007", "sibling_text": "measures to avoid uptake fire and and actions taken during fire internal no ques", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "How a boiler uptake fire takes place — indications and prevention", "cross_family": true } ] }, { "qid": "KOL-2017-08-0109-Q004", "text": "what are the operation to be recorded in orb. Two qsn forgot.", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "KOL-2017-08-0109", "tray": "new", "candidates": [ { "answer_id": "OWS-ORB-006", "score": 0.5037621259689331, "sibling_score": 0.5037621259689331, "answer_score": 0.31785618662834164, "sibling_qid": "MUM-2025-09-0447-Q007", "sibling_text": "orb entries", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "6. Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-005", "score": 0.4601849317550659, "sibling_score": 0.4601849317550659, "answer_score": 0.3397364512085915, "sibling_qid": "KOC-2026-05-0044-Q003", "sibling_text": "bunker miss entry procedure for orb", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "A missed bunker entry — how to add it, and how that differs from correcting a wrong entry", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-002", "score": 0.4579106867313385, "sibling_score": 0.4579106867313385, "answer_score": null, "sibling_qid": "CHE-2024-10-0509-Q002", "sibling_text": "orb entries all in detail", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "The Oil Record Book Part I — purpose, the letter codes, and how entries are made", "cross_family": false } ] }, { "qid": "KOL-2017-08-0110-Q002", "text": "2 what is relationship between stability and freeboard", "family": "SOLAS", "subtopic": "Stability Curves (GZ / KN)", "tid": "KOL-2017-08-0110", "tray": "review", "candidates": [ { "answer_id": "STAB-GZ-P04-004", "score": 0.6836996674537659, "sibling_score": 0.6836996674537659, "answer_score": 0.5475995600223541, "sibling_qid": "KOC-2023-03-0175-Q002", "sibling_text": "statical stability draw for more and less freeboard", "sibling_family": "", "via": "sibling", "answer_title": "Beam, freeboard, GM and the wall-sided curve", "cross_family": false }, { "answer_id": "MARGIN-LINE-004", "score": 0.6648901700973511, "sibling_score": 0.6648901700973511, "answer_score": null, "sibling_qid": "KOC-2022-09-0099-Q010", "sibling_text": "intact stability damage stability criteria margine line distance from freeboard", "sibling_family": "", "via": "sibling", "answer_title": "Margin line in subdivision, floodable length and stability criteria", "cross_family": false }, { "answer_id": "LLC-P05-001", "score": 0.6295632719993591, "sibling_score": 0.6295632719993591, "answer_score": null, "sibling_qid": "CHE-2026-05-0542-Q006", "sibling_text": "fixed freeboard", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Freeboard, deck line, Plimsoll mark, assignment and scantling draft", "cross_family": true } ] }, { "qid": "KOL-2017-08-1320-Q001", "text": "Why bore cooling? How bore cooling? Dead band? Why linear spring? How to improve sensitivity? Rotary vane type stering ? Advabtage over 4 ram? Bydirectional valves? Hydraulic safeties in steerin gear Boiler combustion conteol system? And safeties Main engine types of vibration and and prevntive measures Fucn. 5", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "KOL-2017-08-1320", "tray": "review", "candidates": [ { "answer_id": "PIST-CSI-A-002", "score": 0.6658748984336853, "sibling_score": 0.6658748984336853, "answer_score": null, "sibling_qid": "CHE-2025-08-0190-Q002", "sibling_text": "type of piston type of cooling", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "2-stroke piston: parts, cooling arrangement and operating stresses", "cross_family": false }, { "answer_id": "TR-TB-PA-003", "score": 0.6590430736541748, "sibling_score": 0.6590430736541748, "answer_score": null, "sibling_qid": "MUM-2024-07-1085-Q001", "sibling_text": "and 6 types of ship main engine boiler generator what is the function of tie rod what is meant by pretensioned type of boiler burner working of rotary cup why butterfly valve used in jacket water cooling system ae fuel pump overhaul and checks some term he said regarding heat exchanger mean temperature boiler fire indication and action setting of safety valve dp transmitter setting 09 07", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Why tie rods are pre-tensioned (pre-stressed) and what it means", "cross_family": true }, { "answer_id": "FHV-001", "score": 0.6579614281654358, "sibling_score": 0.6579614281654358, "answer_score": null, "sibling_qid": "CHE-2025-08-0195-Q001", "sibling_text": "why visotherm is there in engine how it will effect your combustion pentertion will it affect the combination what is combustion theory 26 6 25 internal po external t mohan function 4b and 6 funtion 4b 1 type of ship and main engine specifications 2 draw and explain reversing sytem of main engine not from book from manual only 3what is ldcl 4 how cross head lubrication happens and what type of lubrication recent development in cross heads more cross questions 4 what is three element controller and how steam flow transducer works and how it gives supply 5 why holding down bolts are there and checks in it and retightnening procedure more cross questions 6 what is vec function 6 crankshaft deflection what are all the situation you will take crankshaft deflection", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "01. Viscotherm / viscometer / viscosity controller", "cross_family": true } ] }, { "qid": "KOL-2017-08-1321-Q001", "text": "1 . types of engine and specifications", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOL-2017-08-1321", "tray": "review", "candidates": [ { "answer_id": "ENG-NOM-006", "score": 0.7449735999107361, "sibling_score": 0.7449735999107361, "answer_score": null, "sibling_qid": "MUM-2026-07-3768-Q004", "sibling_text": "main engine specification", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Short-form asks: SMC-C, LMC, and ME vs MC quickly", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7353309988975525, "sibling_score": 0.7353309988975525, "answer_score": 0.46210171580314635, "sibling_qid": "MUM-2026-09-3915-Q001", "sibling_text": "type of engine me and ae", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false }, { "answer_id": "ETP-344-P03-001", "score": 0.7327180504798889, "sibling_score": 0.7327180504798889, "answer_score": null, "sibling_qid": "KOL-2026-03-2048-Q001", "sibling_text": "type of engine done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false } ] }, { "qid": "KOL-2017-08-1321-Q003", "text": "Improved high lift safety vv special features+ purpose of drain valve", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2017-08-1321", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.6845409274101257, "sibling_score": 0.6845409274101257, "answer_score": null, "sibling_qid": "MUM-2026-06-3405-Q017", "sibling_text": "improved high lift safety valve details", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "SCAV-323-P02-008", "score": 0.45344755351543425, "sibling_score": null, "answer_score": 0.45344755351543425, "sibling_qid": "", "sibling_text": "safeties and relief arrangements for the scavenge space hazard oily deposits blow past air scavenge fire explosion relief valve door fitted per the maker s design scavenge air receiver or cylinder section spring loaded cup spring lifts at permitted overpressure self closing to prevent air re entry", "sibling_family": "", "via": "answer_title", "answer_title": "Safeties and relief arrangements for the scavenge space", "cross_family": false }, { "answer_id": "FQCC-583-B-015", "score": 0.44985264241695405, "sibling_score": null, "answer_score": 0.44985264241695405, "sibling_qid": "", "sibling_text": "hfo service tank drain valve choked and oil found on draining after a lay up a choked drain is a lost check not a lost convenience without it i cannot prove the tank is free of water first check temperature and the heating coil a cold or waxed tank will not drain and the valve may be innocent", "sibling_family": "", "via": "answer_title", "answer_title": "HFO service tank drain valve choked — and oil found on draining after a lay-up", "cross_family": false } ] }, { "qid": "KOL-2017-08-1322-Q003", "text": "What is effective pump stroke, idle pump stroke in jerk type pump, how to calculate fuel pump lead and fuel cam lead.", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Effective Stroke", "tid": "KOL-2017-08-1322", "tray": "review", "candidates": [ { "answer_id": "FCL-P01-001", "score": 0.6845046877861023, "sibling_score": 0.6845046877861023, "answer_score": 0.5495668411254883, "sibling_qid": "KOL-2024-06-3701-Q001", "sibling_text": "what is pump lead for jerk type pump how to measure", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel pump lead and fuel cam lead: meaning, measurement, significance and adjustment", "cross_family": false }, { "answer_id": "FCAM-LEAD-P04-001", "score": 0.6798193454742432, "sibling_score": 0.6798193454742432, "answer_score": 0.5597652912139892, "sibling_qid": "KOL-2023-12-3662-Q003", "sibling_text": "fuel cam lead and pump lead and process", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel cam lead, cam profile, negative cam and cam slip", "cross_family": false }, { "answer_id": "FP-OVHL-002", "score": 0.6664102673530579, "sibling_score": 0.6664102673530579, "answer_score": null, "sibling_qid": "KOL-2019-02-3211-Q003", "sibling_text": "how to adjust effective stroke on jerk type pump", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel-pump components, clearances and markings", "cross_family": false } ] }, { "qid": "KOL-2017-08-2145-Q001", "text": "Explain short circuit?", "family": "Electrical - Protection & Relays", "subtopic": "Circuit Fault Types", "tid": "KOL-2017-08-2145", "tray": "review", "candidates": [ { "answer_id": "OCR-185-006", "score": 0.7107917666435242, "sibling_score": 0.7107917666435242, "answer_score": 0.3689219757914543, "sibling_qid": "CHE-2026-02-0332-Q014S5", "sibling_text": "short circuit", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "If short-circuit protection fails to operate; how it is checked", "cross_family": false }, { "answer_id": "XFMR-THY-B-003", "score": 0.6596800088882446, "sibling_score": 0.6596800088882446, "answer_score": null, "sibling_qid": "MUM-2026-03-2001-Q002", "sibling_text": "short circuit", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Transformer short-circuit (impedance) test and copper-loss measurement", "cross_family": true }, { "answer_id": "IOCT-565-004", "score": 0.5036793947219849, "sibling_score": 0.5036793947219849, "answer_score": null, "sibling_qid": "MUM-2026-06-3567-Q006", "sibling_text": "short circuit test", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "How is a short-circuit test carried out?", "cross_family": true } ] }, { "qid": "KOL-2017-08-2145-Q003", "text": "Couple of more questions, I forgot.", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOL-2017-08-2145", "tray": "new", "candidates": [ { "answer_id": "WMAT-170-010", "score": 0.6462283134460449, "sibling_score": 0.6462283134460449, "answer_score": null, "sibling_qid": "CHE-2026-05-0597-Q012", "sibling_text": "few more questions", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Bearing types, material selection and properties: where each is used", "cross_family": true }, { "answer_id": "BWMS-C-002", "score": 0.5927383303642273, "sibling_score": 0.5927383303642273, "answer_score": null, "sibling_qid": "KOL-2022-05-0641-Q005", "sibling_text": "bwts one more question but forgot", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Types of BWTS and their working principles", "cross_family": true }, { "answer_id": "CLVR-WEAR-001", "score": 0.5512127876281738, "sibling_score": 0.5512127876281738, "answer_score": null, "sibling_qid": "KOC-2026-03-1110-Q016", "sibling_text": "clover leafing some more questions i don t remember", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Cloverleaf wear — what it is, where, why, and how to reduce or rectify it", "cross_family": true } ] }, { "qid": "KOL-2017-08-2148-Q005", "text": "Emergency power supply regulations", "family": "Electrical - Generator & Alternator", "subtopic": "Emergency DG", "tid": "KOL-2017-08-2148", "tray": "review", "candidates": [ { "answer_id": "EMG-DG-P02-FINAL-2-001", "score": 0.819009006023407, "sibling_score": 0.819009006023407, "answer_score": 0.5180402368307113, "sibling_qid": "KOL-2025-09-2864-Q010", "sibling_text": "regulations for emergency power", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Emergency generator loads and duration of emergency supply", "cross_family": false }, { "answer_id": "EDG-P01-001", "score": 0.7782548069953918, "sibling_score": 0.7782548069953918, "answer_score": 0.5181819438934326, "sibling_qid": "KOC-2026-03-0877-Q006", "sibling_text": "emergency generator regulation requirement", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Emergency source of power — the SOLAS requirements", "cross_family": false }, { "answer_id": "EMG-DG-P02-FINAL-2-002", "score": 0.5104464709758758, "sibling_score": null, "answer_score": 0.5104464709758758, "sibling_qid": "", "sibling_text": "transitional source of emergency power and its duration transitional source an accumulator battery an instantaneous no break supply that covers a generator s start gap when it is required passenger ship emergency generator arrangements reg 42 require it cargo ships reg 43 require it unless the emergency generator automatically starts and supplies the specified transitional services within 45 s if ", "sibling_family": "", "via": "answer_title", "answer_title": "Transitional source of emergency power and its duration", "cross_family": false } ] }, { "qid": "KOL-2017-08-3081-Q004", "text": "fresh water gen high shell temp. Reasons.", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "KOL-2017-08-3081", "tray": "new", "candidates": [ { "answer_id": "JCW-SYS-001", "score": 0.6003145575523376, "sibling_score": 0.6003145575523376, "answer_score": null, "sibling_qid": "KOL-2016-08-1229-Q003", "sibling_text": "why jacket water temp is maintained high in new engine how much then he told me in new engines it increased to 120 and said to check this and find out the reasons", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "How is jacket water temperature controlled - HT/LT controllers, cascade, why it is kept high, and testing the thermostatic valve", "cross_family": false }, { "answer_id": "JCW-SYS-003", "score": 0.5783986449241638, "sibling_score": 0.5783986449241638, "answer_score": 0.4641090214252472, "sibling_qid": "MUM-2026-05-3281-Q005", "sibling_text": "me jcw temp rise by 5deg jcw cooler is sea water cooled how you will come to know which side is leaking alot of questions on this", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "ME jacket-water temperature is rising on all units and will not hold setpoint - reasons, your actions as 2/E, and telling which side of the cooler is leaking", "cross_family": false }, { "answer_id": "STT-BRG-008", "score": 0.563469409942627, "sibling_score": 0.563469409942627, "answer_score": null, "sibling_qid": "MUM-2022-11-2717-Q011", "sibling_text": "stern tube temp is going high reasons mep", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "7. Stern tube bearings — number, size, fixing, clearance, weardown and high-temperature", "cross_family": true } ] }, { "qid": "KOL-2017-08-3082-Q002", "text": "FWG vaccum suddenly lost reason?", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "KOL-2017-08-3082", "tray": "new", "candidates": [ { "answer_id": "FWG-RO-001", "score": 0.6420061588287354, "sibling_score": 0.6420061588287354, "answer_score": null, "sibling_qid": "MUM-2024-06-1081-Q006", "sibling_text": "fwg vaccum not coming", "sibling_family": "Fresh Water & Domestic Systems", "via": "sibling", "answer_title": "How is vacuum created in the FWG, why does it run under vacuum, and what if the vacuum will not come?", "cross_family": true }, { "answer_id": "VAC-COND-002", "score": 0.612376868724823, "sibling_score": 0.612376868724823, "answer_score": 0.4306516647338867, "sibling_qid": "MUM-2026-07-3769-Q011", "sibling_text": "vacuum condenser loosed suction reason", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Low vacuum, suction loss and failure to build vacuum — the reasons", "cross_family": false }, { "answer_id": "VAC-COND-001", "score": 0.5055668354034424, "sibling_score": 0.5055668354034424, "answer_score": null, "sibling_qid": "MUM-2025-09-2396-Q005", "sibling_text": "why vaccum condition", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Purpose, working and thermodynamic principle of the vacuum condenser", "cross_family": true } ] }, { "qid": "KOL-2017-08-3084-Q003", "text": "crankweb slippage, reasons, how to rectify if slippage is only 2-3 degrees.", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft Web / Journal / Shrink Fit", "tid": "KOL-2017-08-3084", "tray": "review", "candidates": [ { "answer_id": "CRANK-217-004", "score": 0.6530877351760864, "sibling_score": 0.6530877351760864, "answer_score": 0.4207225441932678, "sibling_qid": "CHE-2026-05-0560-Q024", "sibling_text": "crankweb slip", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankshaft slippage, tell-tale marks and action if found", "cross_family": false }, { "answer_id": "CRK-DEFL-001", "score": 0.5707922577857971, "sibling_score": 0.5707922577857971, "answer_score": null, "sibling_qid": "MUM-2023-07-2738-Q003", "sibling_text": "reason for taking crank web deflection", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Purpose, timing and scope of crankshaft deflection", "cross_family": false }, { "answer_id": "CRKC-INSP-003", "score": 0.555523693561554, "sibling_score": 0.555523693561554, "answer_score": null, "sibling_qid": "KOL-2022-09-3568-Q002", "sibling_text": "crank case inspection details how to check slippage of web and chain slackness", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Reference checks: piston rod, pinching screws, web slippage, stuffing box, chain slackness", "cross_family": false } ] }, { "qid": "KOL-2017-08-3084-Q006", "text": "2 generators running in parallel, at low load when 3 generator is put into parallel, then this generator exhaust temperatures going high?? All fuel related problems he said no problem, governor OK, turbocharger OK. I told not sufficient air going, he said that's also OK.. Then I said air cooler fouled, he said how u come to know air cooler fouling, I said scav press and manometer.. Finally done with class 2", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Decarb / Balancing / High Exhaust Temperature", "tid": "KOL-2017-08-3084", "tray": "review", "candidates": [ { "answer_id": "AE-HOT-BLOW-005", "score": 0.7164010405540466, "sibling_score": 0.7164010405540466, "answer_score": null, "sibling_qid": "KOL-2018-03-1361-Q007", "sibling_text": "ae one unit exhaust temp rising all unit rising why how to confirm nozzle ring is chocked there is no tc rpm monitor", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Auxiliary engine units rising — one versus all, and confirming a choked turbocharger nozzle ring", "cross_family": false }, { "answer_id": "AE-HOT-BLOW-004", "score": 0.703616738319397, "sibling_score": 0.703616738319397, "answer_score": 0.6035316467285156, "sibling_qid": "MUM-2025-12-2879-Q006", "sibling_text": "rating of the ae running at low load but exhaust temp are high reason", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Auxiliary engine at low load but exhaust temperatures high — reasons", "cross_family": false }, { "answer_id": "AEDEC-291-004", "score": 0.6740951538085938, "sibling_score": 0.6740951538085938, "answer_score": null, "sibling_qid": "KOL-2019-11-3298-Q002", "sibling_text": "ae full oh carried out ae running on no load what all things u will check as 2nd eng not satisfied with answer", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "4. Checks on no-load and before taking load", "cross_family": false } ] }, { "qid": "KOL-2017-08-3086-Q004", "text": "At What periodical interval u will do on Holding down bolts and what all checks u will do?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Holding Down Bolts", "tid": "KOL-2017-08-3086", "tray": "review", "candidates": [ { "answer_id": "TBR-TT-P02-001", "score": 0.7123292088508606, "sibling_score": 0.7123292088508606, "answer_score": null, "sibling_qid": "MUM-2026-05-3341-Q007", "sibling_text": "tightening procedure of holding down bolts and how often we check internal ques", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Tie rod tightening / hydraulic tensioning procedure", "cross_family": false }, { "answer_id": "TBR-TT-P02-002", "score": 0.6532701849937439, "sibling_score": 0.6532701849937439, "answer_score": null, "sibling_qid": "MUM-2026-02-2549-Q006", "sibling_text": "holding down bolts tightness check", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Checking tie rod tightness / slackness — stopped and running", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.6185832023620605, "sibling_score": 0.6185832023620605, "answer_score": 0.48391406536102294, "sibling_qid": "CHE-2026-09-3938-Q004", "sibling_text": "con rod bolts checks and renewal interval", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": true } ] }, { "qid": "KOL-2017-08-3090-Q002", "text": "How to gag the safety valve, draw the tool.", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2017-08-3090", "tray": "new", "candidates": [ { "answer_id": "BLR-SURV-P01-001", "score": 0.637077808380127, "sibling_score": 0.637077808380127, "answer_score": null, "sibling_qid": "MUM-2026-05-2994-Q003", "sibling_text": "how do you set the safety valve in front of surveyor", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "ECON-EGB-004", "score": 0.5873257517814636, "sibling_score": 0.5873257517814636, "answer_score": null, "sibling_qid": "CHE-2026-05-0601-Q010", "sibling_text": "safety valve setting procedure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Safety-valve setting after overhaul & why set higher than the boiler", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.5833021998405457, "sibling_score": 0.5833021998405457, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q012", "sibling_text": "draw top part of improved high lift safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOL-2017-08-3090-Q003", "text": "How to check lip clearance and its value.", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2017-08-3090", "tray": "new", "candidates": [ { "answer_id": "SGRS-328-005", "score": 0.6029115915298462, "sibling_score": 0.6029115915298462, "answer_score": 0.3566698879003525, "sibling_qid": "MUM-2026-06-3405-Q018", "sibling_text": "lip clearance and it s significance", "sibling_family": "Boilers - 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Loll among the limits — vanishing stability, lurch, downflooding, contraflexure", "cross_family": false }, { "answer_id": "LOLL-CORE-P01-001", "score": 0.608300507068634, "sibling_score": 0.608300507068634, "answer_score": 0.4530162006616592, "sibling_qid": "CHE-2025-08-0019-Q009", "sibling_text": "angle of loll", "sibling_family": "", "via": "sibling", "answer_title": "What is angle of loll?", "cross_family": false }, { "answer_id": "LOLL-P02-002", "score": 0.45591351985931394, "sibling_score": null, "answer_score": 0.45591351985931394, "sibling_qid": "", "sibling_text": "1 correcting angle of loll the ballasting sequence loll is a small negative gm g above m unstable upright settles where gz returns to zero with the curve rising calculation hook for a wall sided estimate tan of the loll angle equals the square root of minus 2 gm over bm using the negative upright gm", "sibling_family": "", "via": "answer_title", "answer_title": "1. Correcting angle of loll — the ballasting sequence", "cross_family": false } ] }, { "qid": "KOL-2017-09-0113-Q003", "text": "center of pressure n formulae", "family": "", "subtopic": "LCF / LCG / LCB", "tid": "KOL-2017-09-0113", "tray": "new", "candidates": [ { "answer_id": "GM-META-002", "score": 0.5331493616104126, "sibling_score": 0.5331493616104126, "answer_score": null, "sibling_qid": "MUM-2024-08-0190-Q002", "sibling_text": "gm calculation centre of gravity", "sibling_family": "", "via": "sibling", "answer_title": "How loading, discharge, ballast and lifts move G and GM", "cross_family": false }, { "answer_id": "GM-META-001", "score": 0.4861927628517151, "sibling_score": 0.4861927628517151, "answer_score": 0.36324112862348557, "sibling_qid": "CHE-2026-03-0122-Q011", "sibling_text": "how to calculate the centre of buoyancy", "sibling_family": "", "via": "sibling", "answer_title": "Determining KB, BM, KM, KG and the stability chain", "cross_family": false }, { "answer_id": "INCL-EXP-D-001", "score": 0.46696293354034424, "sibling_score": 0.46696293354034424, "answer_score": 0.3999126315116882, "sibling_qid": "KOC-2023-12-0263-Q003", "sibling_text": "inclination experiment preparation procedure equation how to find center of gravity from this 3 ship security plan contents 4 duties of cso", "sibling_family": "", "via": "sibling", "answer_title": "Finding GM — then KG and the centre of gravity", "cross_family": false } ] }, { "qid": "KOL-2017-09-0113-Q006", "text": "what's hypothermia n remedy", "family": "General Marine Engineering", "subtopic": "2/E Emergency Actions", "tid": "KOL-2017-09-0113", "tray": "new", "candidates": [ { "answer_id": "RAC-MAT-320-004", "score": 0.48835673928260803, "sibling_score": 0.48835673928260803, "answer_score": null, "sibling_qid": "KOL-2022-01-1657-Q002", "sibling_text": "checks in ahu before entering cold climate", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "4. AHU maintenance, filters and pre-climate-change checks", "cross_family": true }, { "answer_id": "FHV-001", "score": 0.4624250829219818, "sibling_score": 0.4624250829219818, "answer_score": null, "sibling_qid": "KOC-2021-07-1141-Q010", "sibling_text": "visotherm working", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "01. Viscotherm / viscometer / viscosity controller", "cross_family": true }, { "answer_id": "REFR-FLT-001", "score": 0.46223926544189453, "sibling_score": 0.46223926544189453, "answer_score": 0.35161747634410856, "sibling_qid": "KOL-2017-02-3035-Q007", "sibling_text": "vegetable room temp goes below zero reasons n remedial actions", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Provision/cold room temperature: will not pull down, runs too low, or will not hold", "cross_family": true } ] }, { "qid": "KOL-2017-09-0114-Q004", "text": "Lifeboat lowering maxxmm speed allowed.", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Davit / Release Gear", "tid": "KOL-2017-09-0114", "tray": "review", "candidates": [ { "answer_id": "DRG-B-008", "score": 0.7533493041992188, "sibling_score": 0.7533493041992188, "answer_score": null, "sibling_qid": "MUM-2026-05-3225-Q001", "sibling_text": "lifeboat max lowering speed", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lowering speed — the limits and how they are held", "cross_family": false }, { "answer_id": "LBT-TEST-B-006", "score": 0.6519840359687805, "sibling_score": 0.6519840359687805, "answer_score": 0.4149246633052826, "sibling_qid": "KOC-2024-06-0353-Q010", "sibling_text": "lifeboat static and dynamic testing and lowering speed", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Dynamic-test lowering speed and brake application", "cross_family": false }, { "answer_id": "DRG-B-013", "score": 0.6353469491004944, "sibling_score": 0.6353469491004944, "answer_score": null, "sibling_qid": "KOL-2020-11-0442-Q005", "sibling_text": "life boat gravity davit dynamic testing name of the handle used to operate deadman handle and finally the speed regulation not more den 36m min", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "The test and examination regime — and what PSC looks at", "cross_family": false } ] }, { "qid": "KOL-2017-09-0115-Q005", "text": "Diff bw tpa and immersion suit", "family": "SOLAS - LSA & Lifeboats", "subtopic": "LSA Code", "tid": "KOL-2017-09-0115", "tray": "new", "candidates": [ { "answer_id": "SCBA-EEBD-005", "score": 0.5735692381858826, "sibling_score": 0.5735692381858826, "answer_score": 0.4102501541376114, "sibling_qid": "KOL-2017-01-0042-Q005", "sibling_text": "difference between firemans outfit ppa immerssion suit when it is used", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fireman's outfit vs PPA vs immersion suit — what each is, when used", "cross_family": true }, { "answer_id": "LB-SURV-C-003", "score": 0.49437659978866577, "sibling_score": 0.49437659978866577, "answer_score": null, "sibling_qid": "CHE-2026-02-0103-Q002", "sibling_text": "immersion suit monthly 6 month and annual maintenance", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Routine maintenance ladder — weekly / monthly / quarterly / 6-monthly onboard checks", "cross_family": false }, { "answer_id": "LRHR-B-002", "score": 0.42515459656715393, "sibling_score": 0.42515459656715393, "answer_score": null, "sibling_qid": "KOL-2017-09-0112-Q005", "sibling_text": "life raft attachment and hru", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "How is the liferaft stowed and secured on deck? Draw the arrangement.", "cross_family": false } ] }, { "qid": "KOL-2017-09-1325-Q007", "text": "questions.\tFuel pump working timing & injection.", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Pump Timing", "tid": "KOL-2017-09-1325", "tray": "review", "candidates": [ { "answer_id": "FCL-P02-001", "score": 0.8060141205787659, "sibling_score": 0.8060141205787659, "answer_score": 0.6030479580163955, "sibling_qid": "KOC-2023-08-1819-Q004", "sibling_text": "fuel pump timing any", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel pump / injection timing check, setting, and adjustment", "cross_family": false }, { "answer_id": "FCL-P01-001", "score": 0.7839663624763489, "sibling_score": 0.7839663624763489, "answer_score": null, "sibling_qid": "KOL-2025-01-1963-Q004", "sibling_text": "when fuel injection exactly happens in main engine explain it with respect to fuel pump lead", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel pump lead and fuel cam lead: meaning, measurement, significance and adjustment", "cross_family": false }, { "answer_id": "FCL-P03-001", "score": 0.7805151343345642, "sibling_score": 0.7805151343345642, "answer_score": 0.562743318080902, "sibling_qid": "CHE-2026-03-0492-Q005", "sibling_text": "in aux engine how to determine timing for fuel pump", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "AE / auxiliary-engine fuel pump timing check and adjustment", "cross_family": false } ] }, { "qid": "KOL-2017-09-3096-Q002", "text": "Differences n construction of full lift & improved lift safety v/v", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2017-09-3096", "tray": "new", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.6437896490097046, "sibling_score": 0.6437896490097046, "answer_score": null, "sibling_qid": "CHE-2026-05-0601-Q009", "sibling_text": "improved high lift safety v v construction o haul and checks", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACRV-005", "score": 0.5356305241584778, "sibling_score": 0.5356305241584778, "answer_score": null, "sibling_qid": "MUM-2026-06-3429-Q010", "sibling_text": "safety valve lift difference", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-003", "score": 0.5344222784042358, "sibling_score": 0.5344222784042358, "answer_score": null, "sibling_qid": "MUM-2026-05-3246-Q016", "sibling_text": "difference between high lift and improved high lift", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "The accumulation test and the safety valve — required lift, how lift and capacity are verified, and why accumulation must stay inside the limit", "cross_family": false } ] }, { "qid": "KOL-2017-10-0123-Q001", "text": "bulbus bow what is speciality two function of bulbus bow.", "family": "", "subtopic": "Bulbous Bow", "tid": "KOL-2017-10-0123", "tray": "new", "candidates": [ { "answer_id": "EQ-LINE-001", "score": 0.4444518983364105, "sibling_score": 0.4444518983364105, "answer_score": null, "sibling_qid": "KOC-2021-05-1756-Q003", "sibling_text": "equalising line function what is inside bulb", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Purpose and function of the equalising line / equalising valve in refrigeration service", "cross_family": false }, { "answer_id": "SGRS-328-006", "score": 0.44282281398773193, "sibling_score": 0.44282281398773193, "answer_score": 0.3400812193751335, "sibling_qid": "KOC-2024-01-1827-Q004", "sibling_text": "lanter ring neck bush functions", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "What is the function of the neck bush and lantern ring in the ram gland?", "cross_family": false }, { "answer_id": "PPS-230-006", "score": 0.3921045660972595, "sibling_score": 0.3921045660972595, "answer_score": null, "sibling_qid": "MUM-2026-04-0896-Q004", "sibling_text": "bulbous bow how it is attached to ship why it is attached name of the wave which counteracts the original bow wave how bulbous bow improves efficiency", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Fore-end / fore-peak structure: draw and describe", "cross_family": false } ] }, { "qid": "KOL-2017-10-0123-Q003", "text": "What type of person you as a second engineer allow to work alloft.", "family": "Risk & Safety Management", "subtopic": "Permit to Work / Enclosed Space", "tid": "KOL-2017-10-0123", "tray": "new", "candidates": [ { "answer_id": "LLC-SURV-P01-001", "score": 0.5282001495361328, "sibling_score": 0.5282001495361328, "answer_score": null, "sibling_qid": "MUM-2024-07-0188-Q005", "sibling_text": "ll survey things to check as 2nd engineer", "sibling_family": "", "via": "sibling", "answer_title": "Load line survey preparation as Second Engineer: engine-room scope, machinery openings, tanks/vents, valves and overboard checks", "cross_family": false }, { "answer_id": "ESE-P01-003", "score": 0.5213247537612915, "sibling_score": 0.5213247537612915, "answer_score": 0.36361019015312196, "sibling_qid": "MUM-2022-12-0076-Q004", "sibling_text": "enclosed space entry precautions as a second engineer", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "General enclosed-space entry procedure as second engineer", "cross_family": false }, { "answer_id": "SGP-001", "score": 0.5167104005813599, "sibling_score": 0.5167104005813599, "answer_score": null, "sibling_qid": "KOL-2018-08-3166-Q002", "sibling_text": "grounding what ull do as 2nd engg", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "What checks and actions are required when a ship is aground or after grounding?", "cross_family": false } ] }, { "qid": "KOL-2017-10-0124-Q001", "text": "IG ALARMS AND TRIPS", "family": "Tanker - Inert Gas System", "subtopic": "IG Alarms / Trips", "tid": "KOL-2017-10-0124", "tray": "review", "candidates": [ { "answer_id": "IGAT-583-001", "score": 0.7811686396598816, "sibling_score": 0.7811686396598816, "answer_score": 0.4530900180339813, "sibling_qid": "MUM-2026-04-0929-Q002", "sibling_text": "ig alarms and trips", "sibling_family": "Tanker - Inert Gas System", "via": "sibling", "answer_title": "State all the alarms, trips and safety cut-outs provided on a tanker inert gas (IG) system.", "cross_family": false }, { "answer_id": "MR-DS-PV-B-003", "score": 0.45927720069885253, "sibling_score": null, "answer_score": 0.45927720069885253, "sibling_qid": "", "sibling_text": "3 alarms trips valves and abnormal conditions of the deck seal key seal alarm low water level audible and visual fss requirement any low low trip interlock of gas delivery is maker ship sms logic and should be quoted from the approved ig manual a low seal a lost first barrier pressure oxygen instrumentation when ig is being supplied continuously indicate and permanently record the pressure of the ", "sibling_family": "", "via": "answer_title", "answer_title": "3. Alarms, trips, valves, and abnormal conditions of the deck seal", "cross_family": false }, { "answer_id": "IGAT-583-003", "score": 0.4341107964515686, "sibling_score": null, "answer_score": 0.4341107964515686, "sibling_qid": "", "sibling_text": "what are the set values for the ig system alarms and trips ig line high low and low low pressure oxygen content pv valve and breaker pressures statutory fss code ch 15 msc 367 93 oxygen alarm in excess of 5 by volume in the delivered gas 2 2 4 5 1 1 statutory gas pressure alarm less than 100 mm water gauge 2 2 4 5 1 3", "sibling_family": "", "via": "answer_title", "answer_title": "What are the set values for the IG system alarms and trips — IG line high, low and low-low pressure, oxygen content, PV valve and breaker pressures?", "cross_family": false } ] }, { "qid": "KOL-2017-10-1326-Q006", "text": "What causes boiler water foaming??", "family": "Boilers - Operations & Firing", "subtopic": "Scum / Blow Down", "tid": "KOL-2017-10-1326", "tray": "review", "candidates": [ { "answer_id": "BBF-621-001", "score": 0.6536467671394348, "sibling_score": 0.6536467671394348, "answer_score": null, "sibling_qid": "MUM-2026-09-3936-Q006", "sibling_text": "boiler blow back reason", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "What is boiler backfire / blowback? Explain the furnace event, the reasons, and how you prevent it.", "cross_family": false }, { "answer_id": "ACCT-583-A-001", "score": 0.6482239961624146, "sibling_score": 0.6482239961624146, "answer_score": null, "sibling_qid": "MUM-2023-11-1065-Q004", "sibling_text": "accumulation of the boiler", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Explain the boiler accumulation pressure test — what it is, its purpose, and how it is carried out (including when and at what interval)", "cross_family": true }, { "answer_id": "BFM-330-003", "score": 0.6477435231208801, "sibling_score": 0.6477435231208801, "answer_score": null, "sibling_qid": "MUM-2026-09-3957-Q003", "sibling_text": "back fire of boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler vibration, backflow and furnace blowback during firing", "cross_family": false } ] }, { "qid": "KOL-2017-10-1327-Q001", "text": "type of engine? what is bore cooling and why it is provided? draw liner cross section and show me how it is done? Material of liner and its properties?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOL-2017-10-1327", "tray": "new", "candidates": [ { "answer_id": "PRING-B-003", "score": 0.5477043390274048, "sibling_score": 0.5477043390274048, "answer_score": null, "sibling_qid": "KOL-2025-12-4075-Q006", "sibling_text": "if liner is chrome coated piston ring coating material", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Material, coating & manufacture", "cross_family": true }, { "answer_id": "CYL-LINER-P01-001", "score": 0.540675699710846, "sibling_score": 0.540675699710846, "answer_score": 0.46909931898117063, "sibling_qid": "MUM-2026-03-1005-Q001S4", "sibling_text": "liner cooling liner calibration", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Carrying out main-engine liner calibration (gauging)", "cross_family": true }, { "answer_id": "CYL-LINER-P04-006", "score": 0.5301292538642883, "sibling_score": 0.5301292538642883, "answer_score": null, "sibling_qid": "MUM-2026-05-3002-Q004", "sibling_text": "draw iron carbon diagram explain where we use pearlite cylinder liner which material", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Material & manufacturing", "cross_family": true } ] }, { "qid": "KOL-2017-10-1328-Q001", "text": "Type of main engine. Oros piston description? Diagram", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOL-2017-10-1328", "tray": "review", "candidates": [ { "answer_id": "PIST-CSI-A-001", "score": 0.7057187557220459, "sibling_score": 0.7057187557220459, "answer_score": 0.5207992941141129, "sibling_qid": "KOL-2018-01-1339-Q003", "sibling_text": "oros type piston", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Oros combustion chamber, high top land and modern 2-stroke piston development", "cross_family": true }, { "answer_id": "PIST-CSI-A-002", "score": 0.688854992389679, "sibling_score": 0.688854992389679, "answer_score": 0.49932568371295927, "sibling_qid": "KOC-2026-08-2160-Q003", "sibling_text": "me piston diagram", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "2-stroke piston: parts, cooling arrangement and operating stresses", "cross_family": true }, { "answer_id": "PST-CSI-BF-001", "score": 0.6654262542724609, "sibling_score": 0.6654262542724609, "answer_score": 0.5207887053489685, "sibling_qid": "KOC-2024-04-0992-Q003", "sibling_text": "piston cross section diagram", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Cross-section of a two-stroke piston — parts, bolting, sealing, materials", "cross_family": true } ] }, { "qid": "KOL-2017-10-1328-Q005", "text": "Hydraulic oil contamination? Action and prevention?", "family": "Steering Gear & Hydraulics", "subtopic": "Hydraulic Oil Cleanliness / NAS / ISO Particle Count", "tid": "KOL-2017-10-1328", "tray": "new", "candidates": [ { "answer_id": "LO-TEST-P02-003", "score": 0.6327134370803833, "sibling_score": 0.6327134370803833, "answer_score": null, "sibling_qid": "KOC-2026-05-0003-Q012", "sibling_text": "me lub oil is contaminated with fresh water actions", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Abnormal LO condition: sump rise, colour, high temperature/pressure, lacquer, deterioration", "cross_family": true }, { "answer_id": "TCS-059-P04-014", "score": 0.5991614460945129, "sibling_score": 0.5991614460945129, "answer_score": null, "sibling_qid": "KOL-2023-12-1939-Q003", "sibling_text": "contamination of lube oil he is specific abt what will contaminat what", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Lube-oil contamination — what contaminates what", "cross_family": true }, { "answer_id": "CASC-COND-001", "score": 0.596309244632721, "sibling_score": 0.596309244632721, "answer_score": 0.5554693430662155, "sibling_qid": "KOL-2026-10-4320-Q006", "sibling_text": "traces of oil in cascade tank your action reason and how to find out", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Oil found in the cascade tank, hotwell or observation tank — actions, tracing the source, and preventing ingress", "cross_family": true } ] }, { "qid": "KOL-2017-10-1855-Q005", "text": "Ovality of crank pin in A/E, what will happen if ovality is beyond limit?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Crankshaft / Crankpin / Bearings", "tid": "KOL-2017-10-1855", "tray": "review", "candidates": [ { "answer_id": "CRPIN-CHK-P01-002", "score": 0.7067142724990845, "sibling_score": 0.7067142724990845, "answer_score": 0.6038426220417022, "sibling_qid": "KOL-2017-01-1270-Q010", "sibling_text": "what you will do if your crankpin is oval beyond limit", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankpin ovality — causes, effects, limit and immediate action", "cross_family": true }, { "answer_id": "CRPIN-CHK-P01-004", "score": 0.6682529449462891, "sibling_score": 0.6682529449462891, "answer_score": null, "sibling_qid": "KOL-2021-01-3371-Q002", "sibling_text": "crankpin ovality measurement x cross related to that like maximum allowable limit of ovality ill effects of ovality what to do if limits crossed how grinding carried out in oval shape which side will be grinded higher or lower diameter", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Repairing an oval or worn crankpin — grinding, undersize bearings, renewal", "cross_family": true }, { "answer_id": "AE-CSB-346-004", "score": 0.6592925190925598, "sibling_score": 0.6592925190925598, "answer_score": 0.5078937172889709, "sibling_qid": "MUM-2022-08-2140-Q001", "sibling_text": "ae crankpin ovality how happen and repair measures", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Crankpin ovality / damage — check and repair action", "cross_family": false } ] }, { "qid": "KOL-2017-10-2150-Q001", "text": "What is bridge rectifier ? Draw and explain where it is use on board ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Zener / Diode / Rectifier", "tid": "KOL-2017-10-2150", "tray": "review", "candidates": [ { "answer_id": "EPC-P01-03", "score": 0.757876455783844, "sibling_score": 0.757876455783844, "answer_score": 0.5015615344047546, "sibling_qid": "CHE-2026-02-0475-Q003", "sibling_text": "bridge rectifier draw and explain", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Rectifiers — definition, types, and where they are used on board", "cross_family": false }, { "answer_id": "EPC-P01-02", "score": 0.705712080001831, "sibling_score": 0.705712080001831, "answer_score": null, "sibling_qid": "CHE-2026-05-0603-Q005", "sibling_text": "name some diode uses bridge rectifier", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Types of diodes, and where diodes are used on board", "cross_family": false }, { "answer_id": "EPC-P01-06", "score": 0.6651005148887634, "sibling_score": 0.6651005148887634, "answer_score": 0.5114614218473434, "sibling_qid": "KOL-2021-03-2433-Q004", "sibling_text": "how dc produce onboard diagram of rectifier how it work", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Do we produce DC on board? Sources, the 24/12-volt arrangement, and where DC is used", "cross_family": false } ] }, { "qid": "KOL-2017-10-2150-Q003", "text": "Aux blower contactor maintenance ?", "family": "Electrical - Protection & Relays", "subtopic": "Protection / Relays", "tid": "KOL-2017-10-2150", "tray": "new", "candidates": [ { "answer_id": "SPHS-B-010", "score": 0.6009958386421204, "sibling_score": 0.6009958386421204, "answer_score": 0.4565646529197693, "sibling_qid": "KOL-2019-07-2310-Q004", "sibling_text": "auxiliary blower obe phase burned how you will know and connect it", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What happens when the aux blower, the purifier or the provision crane motor single phases — and why does the crane slip?", "cross_family": true }, { "answer_id": "COT-P02-07", "score": 0.5709521770477295, "sibling_score": 0.5709521770477295, "answer_score": null, "sibling_qid": "MUM-2025-11-2485-Q002", "sibling_text": "maintenance carried out on ig blower", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Describe the safe washing, stopping and maintenance procedures for an inert-gas blower/fan.", "cross_family": true }, { "answer_id": "SPH-A-008", "score": 0.5600888133049011, "sibling_score": 0.5600888133049011, "answer_score": 0.48331217765808104, "sibling_qid": "MUM-2026-07-3765-Q006", "sibling_text": "auxiliary blower one terminal is overheating reasons", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "One wire in the terminal box of the auxiliary blower is found heated. What may be the problem?", "cross_family": true } ] }, { "qid": "KOL-2017-10-2151-Q001", "text": "Suppose galley hot plate is the not functioning, reported by chief cook. How will you check fault?", "family": "Fault Diagnosis & 2/E Actions", "subtopic": "Fault Diagnosis / 2E Action", "tid": "KOL-2017-10-2151", "tray": "review", "candidates": [ { "answer_id": "IRT-C-010", "score": 0.6625533103942871, "sibling_score": 0.6625533103942871, "answer_score": null, "sibling_qid": "KOC-2021-05-1132-Q003", "sibling_text": "procedure to check ir of galley heater megger uses is there any minimum ir value specified", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "IR of cables and heaters (non-motor)", "cross_family": true }, { "answer_id": "ELEC-SAFE-007", "score": 0.6424951553344727, "sibling_score": 0.6424951553344727, "answer_score": null, "sibling_qid": "KOL-2017-06-2134-Q006", "sibling_text": "galley equipment safeties and asked to draw circuit diagram of hot plate started drawing he said no need", "sibling_family": "", "via": "sibling", "answer_title": "Portable equipment, sockets, light fittings and galley appliances", "cross_family": false }, { "answer_id": "TEV-TXV-007", "score": 0.6306754946708679, "sibling_score": 0.6306754946708679, "answer_score": null, "sibling_qid": "KOL-2025-12-3893-Q002", "sibling_text": "meat room temp not coming je said to you tev not working how will you ensure only tev has problem before opening", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Faulty TEV in a meat/fish room with no spare — diagnosis and management", "cross_family": true } ] }, { "qid": "KOL-2017-10-2153-Q001", "text": "All about navigational light", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Lifeboat / Davit / LSA", "tid": "KOL-2017-10-2153", "tray": "review", "candidates": [ { "answer_id": "LT-SRC-007", "score": 0.6683306694030762, "sibling_score": 0.6683306694030762, "answer_score": null, "sibling_qid": "KOC-2026-02-1708-Q006", "sibling_text": "navigational ckt where supply coming from regulations where all are the navigational lights", "sibling_family": "", "via": "sibling", "answer_title": "What is the navigation-light supply source, voltage and emergency arrangement?", "cross_family": false }, { "answer_id": "LT-SRC-004", "score": 0.6584041118621826, "sibling_score": 0.6584041118621826, "answer_score": 0.5158591032028198, "sibling_qid": "KOC-2025-10-1588-Q004", "sibling_text": "navigational light", "sibling_family": "", "via": "sibling", "answer_title": "What navigation lights are carried, where, and how many?", "cross_family": false }, { "answer_id": "LT-SRC-009", "score": 0.6512182354927063, "sibling_score": 0.6512182354927063, "answer_score": null, "sibling_qid": "KOC-2023-04-1253-Q008", "sibling_text": "navigational lights onboard how many what is special about navigational lights alarm upon failure", "sibling_family": "", "via": "sibling", "answer_title": "Draw and explain the nav-light circuit, fault indication and fuse-failure alarm", "cross_family": false } ] }, { "qid": "KOL-2017-10-2155-Q002", "text": "ex(d),ex(p).ex.i.exi(b)", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOL-2017-10-2155", "tray": "review", "candidates": [ { "answer_id": "EXD-EXI-A-001", "score": 0.6948778033256531, "sibling_score": 0.6948778033256531, "answer_score": 0.30176415145397184, "sibling_qid": "KOL-2025-12-2942-Q001", "sibling_text": "ex d and ex i", "sibling_family": "", "via": "sibling", "answer_title": "Ex i (intrinsically safe) vs Ex d (flameproof / explosion-proof) — the difference", "cross_family": false }, { "answer_id": "EXD-EXI-A-002", "score": 0.6929646730422974, "sibling_score": 0.6929646730422974, "answer_score": null, "sibling_qid": "KOC-2025-05-2064-Q007", "sibling_text": "ex i and exd", "sibling_family": "", "via": "sibling", "answer_title": "Ex d (flameproof / explosion-proof) — construction, shipboard applications and maintenance", "cross_family": false }, { "answer_id": "HAZ-EX-B-001", "score": 0.6741548180580139, "sibling_score": 0.6741548180580139, "answer_score": null, "sibling_qid": "MUM-2026-03-2019-Q002", "sibling_text": "ex i and ex d", "sibling_family": "", "via": "sibling", "answer_title": "Intrinsically safe (Ex i) equipment — what it is, how it works, where it is used, how you identify it", "cross_family": false } ] }, { "qid": "KOL-2017-10-3097-Q005", "text": "How to measure the bottom end bearing clearance of main air compressor?", "family": "Air Compressor", "subtopic": "MAC / Air Compressor", "tid": "KOL-2017-10-3097", "tray": "review", "candidates": [ { "answer_id": "BEB-B-002", "score": 0.7458098530769348, "sibling_score": 0.7458098530769348, "answer_score": 0.6095503211021424, "sibling_qid": "KOC-2024-11-1876-Q001", "sibling_text": "measuring bttm end bearing clearance", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bottom End Bearing — Clearance Measurement", "cross_family": true }, { "answer_id": "XHD-BRG-B-004", "score": 0.6923893094062805, "sibling_score": 0.6923893094062805, "answer_score": null, "sibling_qid": "KOL-2021-02-3376-Q003", "sibling_text": "crosshead bearing and bottom end bearing how to measure clearance", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Measuring crosshead bearing and guide-shoe clearances", "cross_family": true }, { "answer_id": "AE-CRP-007", "score": 0.6860737800598145, "sibling_score": 0.6860737800598145, "answer_score": null, "sibling_qid": "KOC-2025-08-1048-Q013", "sibling_text": "ae big end bearing clearance measurement procedure", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE big-end / bottom-end bearing — inspection, bedding, nip and crush", "cross_family": true } ] }, { "qid": "KOL-2017-10-3099-Q001", "text": "Easing gear purpose?when to use? Safety precaution before using.", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2017-10-3099", "tray": "new", "candidates": [ { "answer_id": "TG-MOTOR-007", "score": 0.5487948656082153, "sibling_score": 0.5487948656082153, "answer_score": 0.39147835075855253, "sibling_qid": "KOL-2017-01-3023-Q003", "sibling_text": "precautions befor turning turning gear", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What precautions do you take before engaging and turning the turning gear?", "cross_family": true }, { "answer_id": "PUMPRM-B-001", "score": 0.5128790140151978, "sibling_score": 0.5128790140151978, "answer_score": null, "sibling_qid": "CHE-2025-08-0049-Q005", "sibling_text": "why we are doing tat safety precautions", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Entering the cargo pump room - precautions and permit", "cross_family": true }, { "answer_id": "BLR-SURV-P02-001", "score": 0.5119331479072571, "sibling_score": 0.5119331479072571, "answer_score": null, "sibling_qid": "MUM-2026-05-3267-Q005", "sibling_text": "boiler safety valve why you required easing gear", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOL-2017-10-3100-Q004", "text": "Boiler safety valve survey", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2017-10-3100", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P01-001", "score": 0.8320674300193787, "sibling_score": 0.8320674300193787, "answer_score": null, "sibling_qid": "MUM-2026-03-2935-Q013", "sibling_text": "boiler safety valve setting in presence of surveyor after survey", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.8046841025352478, "sibling_score": 0.8046841025352478, "answer_score": null, "sibling_qid": "KOL-2021-08-1614-Q006", "sibling_text": "boiler survey interval types of safety valves improved high lift safety valve in detail", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACRV-005", "score": 0.7749013304710388, "sibling_score": 0.7749013304710388, "answer_score": null, "sibling_qid": "MUM-2026-06-3549-Q005", "sibling_text": "boiler safety valve maximum questions", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": false } ] }, { "qid": "KOL-2017-10-3100-Q005", "text": "A/E bottom end bearing removal and clearance method.", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Decarb Checks / Connecting Rod / Bottom End Bearing", "tid": "KOL-2017-10-3100", "tray": "review", "candidates": [ { "answer_id": "AE-MB-002", "score": 0.7681724429130554, "sibling_score": 0.7681724429130554, "answer_score": 0.5544645249843597, "sibling_qid": "KOL-2026-02-3912-Q002", "sibling_text": "ae main bearing bottom end removal", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Removing the lower shell / bottom half of an AE main bearing", "cross_family": false }, { "answer_id": "AECR-651-004", "score": 0.7265719175338745, "sibling_score": 0.7265719175338745, "answer_score": 0.5508311092853546, "sibling_qid": "MUM-2026-05-3226-Q001", "sibling_text": "how will you take the bottom end bearing clearance of ae without removing bearing", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "How do you inspect the bottom-end bearing, and how do you take the AE big-end clearance without removing it?", "cross_family": false }, { "answer_id": "BEB-B-002", "score": 0.7239406704902649, "sibling_score": 0.7239406704902649, "answer_score": 0.5095937967300415, "sibling_qid": "MUM-2026-06-3438-Q005", "sibling_text": "me bottom end bearing how to take clearnce", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Bottom End Bearing — Clearance Measurement", "cross_family": false } ] }, { "qid": "KOL-2017-11-0129-Q001", "text": "Asked about ship's particular, arrangement to reduce rolling on ur ship? I explained about fin stabilizers as per my ship.", "family": "", "subtopic": "Anti-Roll Tank / Stabiliser", "tid": "KOL-2017-11-0129", "tray": "review", "candidates": [ { "answer_id": "PAR-ROLL-003", "score": 0.6869933009147644, "sibling_score": 0.6869933009147644, "answer_score": null, "sibling_qid": "MUM-2026-04-0913-Q004", "sibling_text": "parametric rolling in detail reasons why not on other ships", "sibling_family": "", "via": "sibling", "answer_title": "03. Why container / car-carrier / Ro-Ro ships, and why not bulk carriers", "cross_family": false }, { "answer_id": "BK-002", "score": 0.6788266897201538, "sibling_score": 0.6788266897201538, "answer_score": 0.5203416466712951, "sibling_qid": "KOC-2023-05-0186-Q003", "sibling_text": "bilge keel how reduce rolling", "sibling_family": "", "via": "sibling", "answer_title": "How does a bilge keel reduce rolling, and how does it relate to roll period and radius of gyration?", "cross_family": false }, { "answer_id": "STAB-GZ-P04-001", "score": 0.6707649827003479, "sibling_score": 0.6707649827003479, "answer_score": null, "sibling_qid": "KOL-2018-03-0159-Q002", "sibling_text": "what is residual dynamical stability of a rolling ship told him dynamical stability def wanted to hear something else", "sibling_family": "", "via": "sibling", "answer_title": "Dynamic stability — the area under the GZ curve", "cross_family": false } ] }, { "qid": "KOL-2017-11-1331-Q008", "text": "Rudder crack how to weld and test . rest forget", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2017-11-1331", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.6520450711250305, "sibling_score": 0.6520450711250305, "answer_score": null, "sibling_qid": "MUM-2026-09-3982-Q002", "sibling_text": "rudder inspection welding on rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "HULL-DD-001", "score": 0.588455080986023, "sibling_score": 0.588455080986023, "answer_score": 0.4484190046787262, "sibling_qid": "KOL-2020-11-3360-Q004", "sibling_text": "hull crack repair i told the procedure followed by welding then he asked if crack occurs in the welding again then how will you repair", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "1. Hull plate / shell-weld crack repair in drydock", "cross_family": true }, { "answer_id": "WBS-C-006", "score": 0.5841594934463501, "sibling_score": 0.5841594934463501, "answer_score": null, "sibling_qid": "KOL-2025-11-4070-Q006", "sibling_text": "rudder welding", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Propeller and rudder repair — grading the damage and the Class-approved route", "cross_family": true } ] }, { "qid": "KOL-2017-11-1332-Q006", "text": "3- Air compressor seat and valve material , why plate type used instead of any other type valve", "family": "Air Compressor", "subtopic": "Reciprocating Compressor", "tid": "KOL-2017-11-1332", "tray": "new", "candidates": [ { "answer_id": "MAC-598-001", "score": 0.5844082236289978, "sibling_score": 0.5844082236289978, "answer_score": 0.44739721417427064, "sibling_qid": "MUM-2025-09-2429-Q005S2", "sibling_text": "decider ques the compressor valve has so many parts why the construction of valve is so complex", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "The main air compressor valve — arrangement, parts, and why the construction is so complex", "cross_family": false }, { "answer_id": "WTGS-325-007", "score": 0.5511098504066467, "sibling_score": 0.5511098504066467, "answer_score": null, "sibling_qid": "KOL-2026-02-3911-Q006", "sibling_text": "air compressor valve plate has scratch how to do lapping", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Valve-seat lapping tools and workshop valve checking", "cross_family": false }, { "answer_id": "AC-STAGE-001", "score": 0.5345966815948486, "sibling_score": 0.5345966815948486, "answer_score": null, "sibling_qid": "KOL-2017-03-3039-Q005", "sibling_text": "air compressor why multi stage why intetcooler why air passes through tubes not in the casing surrounding the tubes of the cooler why bursting disc is given material", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Why multistage compression — advantages over single-stage", "cross_family": false } ] }, { "qid": "KOL-2017-11-1856-Q003", "text": "Safety valve setting.", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2017-11-1856", "tray": "review", "candidates": [ { "answer_id": "ECON-EGB-004", "score": 0.7866153120994568, "sibling_score": 0.7866153120994568, "answer_score": 0.5496102094650268, "sibling_qid": "KOL-2026-09-4304-Q003", "sibling_text": "safety valve setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Safety-valve setting after overhaul & why set higher than the boiler", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.7836489081382751, "sibling_score": 0.7836489081382751, "answer_score": null, "sibling_qid": "MUM-2026-02-1255-Q006", "sibling_text": "setting of safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.716545581817627, "sibling_score": 0.716545581817627, "answer_score": null, "sibling_qid": "KOC-2026-09-2205-Q019", "sibling_text": "setting safety valve infront of surveyor", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false } ] }, { "qid": "KOL-2017-11-2156-Q003", "text": "Entrinsically safe equipment", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOL-2017-11-2156", "tray": "review", "candidates": [ { "answer_id": "HAZ-EX-B-001", "score": 0.7824339866638184, "sibling_score": 0.7824339866638184, "answer_score": 0.5875060826539993, "sibling_qid": "KOC-2023-12-1312-Q004", "sibling_text": "intrinsically safe equipment", "sibling_family": "", "via": "sibling", "answer_title": "Intrinsically safe (Ex i) equipment — what it is, how it works, where it is used, how you identify it", "cross_family": false }, { "answer_id": "ELEC-SAFE-012", "score": 0.5438645124435425, "sibling_score": null, "answer_score": 0.5438645124435425, "sibling_qid": "", "sibling_text": "electrical safety in lpg areas and the co2 room lpg gas zone certified ex flameproof intrinsically safe intact glands and enclosures lpg no unapproved portables gas detection and ventilation isolation under permit", "sibling_family": "", "via": "answer_title", "answer_title": "Electrical safety in LPG areas and the CO2 room", "cross_family": false }, { "answer_id": "IGC-GAS-011", "score": 0.5423340559005737, "sibling_score": null, "answer_score": 0.5423340559005737, "sibling_qid": "", "sibling_text": "gas systems and hazardous area safety fgss piping gas detection cargo area classified into hazardous zones only certified safe equipment suitable for the zone ex d flameproof ex i intrinsically safe increased safety or pressurised as permitted ordinary marine rated gear is not acceptable fixed gas detection in cargo and machinery spaces alarms at a percentage of the lfl plus portable detectors", "sibling_family": "", "via": "answer_title", "answer_title": "Gas systems and hazardous-area safety (FGSS, piping, gas detection)", "cross_family": false } ] }, { "qid": "KOL-2017-11-2157-Q002", "text": "What is vaccum diode how work n material n how Use as a switch. 2 PID controller working 3 thermister complete 4 Governor droop 5 Electrical safety during bunker Mep 1 bedding of main bearing 2 crank pin ovality 3 mpi test 4 forget Got Func 5", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Zener / Diode / Rectifier", "tid": "KOL-2017-11-2157", "tray": "new", "candidates": [ { "answer_id": "PID-CTRL-002", "score": 0.6447014212608337, "sibling_score": 0.6447014212608337, "answer_score": null, "sibling_qid": "KOL-2018-06-0188-Q002", "sibling_text": "pid controller 2 precautions to be taken before working on high voltage 3 fuse purpose draw diagram 4 overload trip 5 what happens if temperature of conductor increases 6 what happens if main power loss saurabh singh 10 05 2018 ext paul sir int rao sir", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Proportional, integral and derivative actions", "cross_family": false }, { "answer_id": "EPC-P02-03", "score": 0.6279627680778503, "sibling_score": 0.6279627680778503, "answer_score": null, "sibling_qid": "KOL-2025-09-4062-Q005", "sibling_text": "zener diode purpose and location in engine room 5 clampmeter working and why it use to measure only single wire 6 bow thruster motor and type of motor for bow and working", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Where is a zener diode used on board and why — voltage regulator, AVR, clipper — and explain one application in detail.", "cross_family": false }, { "answer_id": "EPC-P01-02", "score": 0.6253921985626221, "sibling_score": 0.6253921985626221, "answer_score": 0.4686152756214142, "sibling_qid": "KOC-2023-12-1314-Q014", "sibling_text": "types of diodes working how to test diode", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Types of diodes, and where diodes are used on board", "cross_family": false } ] }, { "qid": "KOL-2017-11-3101-Q001", "text": "What is propeller draw?(I asked him if he had asked propeller drop..he said listen correctly I'm asking propeller draw...I had no idea)", "family": "Shafting, Propeller & Rudder", "subtopic": "Propeller Drydock Checks / Propeller Shaft Measurements", "tid": "KOL-2017-11-3101", "tray": "review", "candidates": [ { "answer_id": "PROP-PN-C-002", "score": 0.7082989811897278, "sibling_score": 0.7082989811897278, "answer_score": null, "sibling_qid": "CHE-2026-05-0639-Q003", "sibling_text": "propeller drop draw and explain", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Propeller drop — measurement and consequences", "cross_family": true }, { "answer_id": "PERF-CRV-001", "score": 0.6911138296127319, "sibling_score": 0.6911138296127319, "answer_score": 0.42647275030612947, "sibling_qid": "CHE-2026-09-3920-Q006", "sibling_text": "propeller draw", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Propeller curve — what it is, use and margin", "cross_family": true }, { "answer_id": "SPR-STERN-002", "score": 0.665761411190033, "sibling_score": 0.665761411190033, "answer_score": 0.43083314299583436, "sibling_qid": "KOL-2018-02-1354-Q011", "sibling_text": "propeller draw i cudnt understand wat he wanted to know didn t answer got function 6", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Propeller draw & dry-dock blade repair", "cross_family": false } ] }, { "qid": "KOL-2017-11-3101-Q002", "text": "AE piston stuck how to remove", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE Conrod / Piston", "tid": "KOL-2017-11-3101", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-002", "score": 0.7645878195762634, "sibling_score": 0.7645878195762634, "answer_score": 0.554974964261055, "sibling_qid": "KOL-2018-03-1361-Q006", "sibling_text": "ae piston seized how to remove", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Seized piston in an AE liner — actions and safe removal", "cross_family": false }, { "answer_id": "AE-CRP-001", "score": 0.7125853896141052, "sibling_score": 0.7125853896141052, "answer_score": 0.5164426505565644, "sibling_qid": "MUM-2026-03-2951-Q006", "sibling_text": "how will you individually take out the piston only with motorman of ae", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE piston overhaul — removal, ring handling and refit", "cross_family": false }, { "answer_id": "PIST-CSI-B-003", "score": 0.6445364952087402, "sibling_score": 0.6445364952087402, "answer_score": null, "sibling_qid": "KOL-2017-07-3071-Q001", "sibling_text": "checks on piston after removal", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Inspecting, calibrating and gauging a removed piston", "cross_family": true } ] }, { "qid": "KOL-2017-11-3101-Q005", "text": "Pintle bearing clearance. Got function 4", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2017-11-3101", "tray": "new", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.5892106294631958, "sibling_score": 0.5892106294631958, "answer_score": null, "sibling_qid": "NOI-2026-09-0024-Q001", "sibling_text": "pintle clearance", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": true }, { "answer_id": "STS-P02-001", "score": 0.5780296921730042, "sibling_score": 0.5780296921730042, "answer_score": null, "sibling_qid": "KOL-2017-03-3040-Q003", "sibling_text": "what was the bearing clearance", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "STS-P02-01 - Stern tube bearing clearance and wear-down measurement", "cross_family": true }, { "answer_id": "BCL-592-002", "score": 0.5697506666183472, "sibling_score": 0.5697506666183472, "answer_score": null, "sibling_qid": "MUM-2025-08-1162-Q009", "sibling_text": "explain all bearing clearances", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Take me through all the clearances you measure on the main engine and how you take each one.", "cross_family": true } ] }, { "qid": "KOL-2017-11-3103-Q005", "text": "Deck hyd oil system contamination and remedy.", "family": "Steering Gear & Hydraulics", "subtopic": "Hydraulic Oil Cleanliness / NAS / ISO Particle Count", "tid": "KOL-2017-11-3103", "tray": "new", "candidates": [ { "answer_id": "LO-TEST-P02-003", "score": 0.5216270685195923, "sibling_score": 0.5216270685195923, "answer_score": null, "sibling_qid": "KOC-2026-05-0003-Q012", "sibling_text": "me lub oil is contaminated with fresh water actions", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Abnormal LO condition: sump rise, colour, high temperature/pressure, lacquer, deterioration", "cross_family": true }, { "answer_id": "OILRES-DISCH-TOPIC467-FINAL-003", "score": 0.5088509917259216, "sibling_score": 0.5088509917259216, "answer_score": 0.465234825015068, "sibling_qid": "KOL-2021-07-3433-Q005", "sibling_text": "asked by choudhary sir you joined ship and found bottom floor tank top and bilges oily company has asked you to clean tell me step by step action", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Joined the ship, tank top, floor and bilges are oily — step-by-step cleaning as Second Engineer", "cross_family": true }, { "answer_id": "STEER-055-A-004", "score": 0.5050075650215149, "sibling_score": 0.5050075650215149, "answer_score": null, "sibling_qid": "KOL-2017-08-3083-Q002", "sibling_text": "hydraulic system problem causes and rectification", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Hydraulic faults — air, sluggish response, locking, leakage", "cross_family": false } ] }, { "qid": "KOL-2017-12-0133-Q001", "text": "Ig alarms and trips", "family": "Tanker - Inert Gas System", "subtopic": "IG Alarms / Trips", "tid": "KOL-2017-12-0133", "tray": "review", "candidates": [ { "answer_id": "IGAT-583-001", "score": 0.7811686396598816, "sibling_score": 0.7811686396598816, "answer_score": 0.4530900180339813, "sibling_qid": "MUM-2026-04-0929-Q002", "sibling_text": "ig alarms and trips", "sibling_family": "Tanker - Inert Gas System", "via": "sibling", "answer_title": "State all the alarms, trips and safety cut-outs provided on a tanker inert gas (IG) system.", "cross_family": false }, { "answer_id": "MR-DS-PV-B-003", "score": 0.45927720069885253, "sibling_score": null, "answer_score": 0.45927720069885253, "sibling_qid": "", "sibling_text": "3 alarms trips valves and abnormal conditions of the deck seal key seal alarm low water level audible and visual fss requirement any low low trip interlock of gas delivery is maker ship sms logic and should be quoted from the approved ig manual a low seal a lost first barrier pressure oxygen instrumentation when ig is being supplied continuously indicate and permanently record the pressure of the ", "sibling_family": "", "via": "answer_title", "answer_title": "3. Alarms, trips, valves, and abnormal conditions of the deck seal", "cross_family": false }, { "answer_id": "IGAT-583-003", "score": 0.4341107964515686, "sibling_score": null, "answer_score": 0.4341107964515686, "sibling_qid": "", "sibling_text": "what are the set values for the ig system alarms and trips ig line high low and low low pressure oxygen content pv valve and breaker pressures statutory fss code ch 15 msc 367 93 oxygen alarm in excess of 5 by volume in the delivered gas 2 2 4 5 1 1 statutory gas pressure alarm less than 100 mm water gauge 2 2 4 5 1 3", "sibling_family": "", "via": "answer_title", "answer_title": "What are the set values for the IG system alarms and trips — IG line high, low and low-low pressure, oxygen content, PV valve and breaker pressures?", "cross_family": false } ] }, { "qid": "KOL-2017-12-0135-Q001", "text": "1,advantage and disadvantages of ultimate tensile steel", "family": "Materials & Metallurgy", "subtopic": "Steel types, killed steel, high-tensile steel", "tid": "KOL-2017-12-0135", "tray": "new", "candidates": [ { "answer_id": "STEEL-GR-003", "score": 0.5746915936470032, "sibling_score": 0.5746915936470032, "answer_score": 0.4022580683231354, "sibling_qid": "KOL-2025-09-1072-Q004", "sibling_text": "why high tensile steel is used more stress region where crack occurs", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "High-tensile steel — where and why it is used", "cross_family": true }, { "answer_id": "STEEL-GR-002", "score": 0.5511525869369507, "sibling_score": 0.5511525869369507, "answer_score": null, "sibling_qid": "KOL-2020-11-1564-Q001", "sibling_text": "what is mild steel disadvantage of mild steel how to improve strength of mild steel where used how it is manufactured", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Mild steel — composition, use, and how it differs from cast iron", "cross_family": true }, { "answer_id": "PTHE-002", "score": 0.5255513787269592, "sibling_score": 0.5255513787269592, "answer_score": null, "sibling_qid": "MUM-2017-01-2126-Q006", "sibling_text": "properties of titanium not in favour of using it as plate material", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Plate material, titanium trade-offs and seawater plate selection", "cross_family": true } ] }, { "qid": "KOL-2017-12-0135-Q005", "text": "masters review", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOL-2017-12-0135", "tray": "review", "candidates": [ { "answer_id": "ISM-AUD-P02-006", "score": 0.7567737698554993, "sibling_score": 0.7567737698554993, "answer_score": 0.3882157444953918, "sibling_qid": "KOL-2024-02-0815-Q003", "sibling_text": "master s review", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Master's review, company / management review and change management", "cross_family": false }, { "answer_id": "ISM-ELEM-006", "score": 0.7374570965766907, "sibling_score": 0.7374570965766907, "answer_score": 0.4627141922712326, "sibling_qid": "NOI-2026-09-0024-Q004", "sibling_text": "master review", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Master’s review & management review", "cross_family": false }, { "answer_id": "ISM-DPA-004", "score": 0.5561689734458923, "sibling_score": 0.5561689734458923, "answer_score": 0.28354032933712003, "sibling_qid": "KOC-2023-07-0201-Q008", "sibling_text": "masters overriding authority", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Master's overriding authority and the DPA relationship (ISM chapters)", "cross_family": false } ] }, { "qid": "KOL-2017-12-1333-Q002", "text": "why drain pipe is given in safety valve?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2017-12-1333", "tray": "new", "candidates": [ { "answer_id": "ACRV-005", "score": 0.6087577939033508, "sibling_score": 0.6087577939033508, "answer_score": null, "sibling_qid": "CHE-2026-05-0636-Q009", "sibling_text": "what is safety valve blowdown", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.5966055989265442, "sibling_score": 0.5966055989265442, "answer_score": null, "sibling_qid": "MUM-2026-03-2589-Q003", "sibling_text": "checks on safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.594801127910614, "sibling_score": 0.594801127910614, "answer_score": null, "sibling_qid": "KOC-2026-05-2142-Q007", "sibling_text": "full bore safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOL-2017-12-1334-Q001", "text": "1 Compressor bumping clearance u measured .9 When u run compressor u feel bumping against head. Why? Ok bearing wear down. So 0.9 Wear down is 0.3 so where goes 0.6", "family": "Air Compressor", "subtopic": "Reciprocating Compressor", "tid": "KOL-2017-12-1334", "tray": "review", "candidates": [ { "answer_id": "MAC-353-008", "score": 0.7014947533607483, "sibling_score": 0.7014947533607483, "answer_score": null, "sibling_qid": "CHE-2026-04-0506-Q001S4", "sibling_text": "air compressor bumping clearance said lead ball method not accepting it", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Taking bumping clearance without opening the cylinder (lead-ball method)", "cross_family": false }, { "answer_id": "MAC-598-003", "score": 0.6785492300987244, "sibling_score": 0.6785492300987244, "answer_score": null, "sibling_qid": "MUM-2022-10-2712-Q005", "sibling_text": "compressor efficiency drop reasons for it how you take bumping clearance in it", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "The compressor is not filling the bottle, or is taking longer than usual, or running continuously on low amps — checks and actions as 2/E", "cross_family": false }, { "answer_id": "AC-VE-001", "score": 0.6636947393417358, "sibling_score": 0.6636947393417358, "answer_score": null, "sibling_qid": "KOL-2023-02-1725-Q007", "sibling_text": "volumetric efficiency of compressor gone done bumping clearance adjustment", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Volumetric efficiency: define it, and if it drops how do you improve it (with bumping clearance)?", "cross_family": false } ] }, { "qid": "KOL-2017-12-2162-Q004", "text": "Sound operated telephone", "family": "General Marine Engineering", "subtopic": "DO Expansion Phone", "tid": "KOL-2017-12-2162", "tray": "new", "candidates": [ { "answer_id": "BDC-P04-03", "score": 0.5580070614814758, "sibling_score": 0.5580070614814758, "answer_score": null, "sibling_qid": "KOL-2017-07-3961-Q006", "sibling_text": "how telephone working deciding by shine how voltage test in battery he want to listen value of load", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "Battery load test on board — preparation, deciding the load, and reading the result", "cross_family": true }, { "answer_id": "TLGW-330-001", "score": 0.5284641981124878, "sibling_score": 0.5284641981124878, "answer_score": null, "sibling_qid": "KOC-2025-03-0570-Q006", "sibling_text": "telegraph working", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Explain the working of the engine-room telegraph and how a bridge order is received in the ECR", "cross_family": true }, { "answer_id": "MSB-ESB-F-001", "score": 0.5047869086265564, "sibling_score": 0.5047869086265564, "answer_score": null, "sibling_qid": "MUM-2026-01-1899-Q003", "sibling_text": "switchboard safety", "sibling_family": "", "via": "sibling", "answer_title": "What safeties, protection trips, relays and alarms are provided on the MSB/ESB and how are they tested?", "cross_family": false } ] }, { "qid": "KOL-2017-12-2163-Q004", "text": "sound power telephone working and elecromechanical transducer working. 5Thyristor working and trigger voltage.", "family": "General Marine Engineering", "subtopic": "DO Expansion Phone", "tid": "KOL-2017-12-2163", "tray": "new", "candidates": [ { "answer_id": "SCR-306-A-001", "score": 0.5966268181800842, "sibling_score": 0.5966268181800842, "answer_score": null, "sibling_qid": "MUM-2026-05-3076-Q006", "sibling_text": "thyristor working", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What an SCR is and how it works", "cross_family": true }, { "answer_id": "SCR-306-B-005", "score": 0.5746195912361145, "sibling_score": 0.5746195912361145, "answer_score": 0.45858903229236603, "sibling_qid": "CHE-2025-08-0280-Q016", "sibling_text": "how is thyristor used in avr ans trigger voltage and firing angle internal deciding", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Thyristor / SCR in an AVR excitation circuit", "cross_family": true }, { "answer_id": "SCR-306-A-004", "score": 0.5620391964912415, "sibling_score": 0.5620391964912415, "answer_score": null, "sibling_qid": "MUM-2022-10-1364-Q002", "sibling_text": "thyristor where used", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Applications and onboard uses", "cross_family": true } ] }, { "qid": "KOL-2017-12-3109-Q002", "text": "blr safety valve compression test and how to know how much is the compression", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2017-12-3109", "tray": "new", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-003", "score": 0.6321672797203064, "sibling_score": 0.6321672797203064, "answer_score": 0.4876702904701233, "sibling_qid": "MUM-2023-03-1044-Q007", "sibling_text": "accumulation of pressure test y is it carried out a how do u know if ur safety valve is of proper size", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "The accumulation test and the safety valve — required lift, how lift and capacity are verified, and why accumulation must stay inside the limit", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-002", "score": 0.6135843396186829, "sibling_score": 0.6135843396186829, "answer_score": null, "sibling_qid": "MUM-2022-07-2694-Q001", "sibling_text": "accumulation pr test if safety valve lifts then y u want that it should not go beyond 10 like for 10 bar if it lifts at 3 of 10 bar then y it should go beyond that upto 10", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Acceptance limits and durations — the accumulation limit, the maximum test periods, and the action if the limit is exceeded", "cross_family": false }, { "answer_id": "BLR-CHEM-003", "score": 0.6083608269691467, "sibling_score": 0.6083608269691467, "answer_score": null, "sibling_qid": "KOL-2021-07-3422-Q002", "sibling_text": "you are taking sample from boiler and you found soapy water is coming out of sample point give reason and treatment common name and chemical name of that compound a by which name this product is available in market and on ship 3 tube and shell type fwg pressure testing procedure a from which place you will add water and air b at what pressure you are going to test the fwg c what is lifting pressure of safety valve of fwg d what are the places where you will look for leakage some more cross question like compound of coating inside fwg position of relief valve at how many places you will blank before pressure testing procedure 4 your ac compressor is of 3 cylinder but capacity of compressor is not increasing above 33 give reason with remedies action a mechanism of unloading of cylinder of ac compressor can you manually unload any particular cylinder", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "3. Boiler chemical dosing programme", "cross_family": false } ] }, { "qid": "KOL-2018-01-0139-Q001", "text": "Damage stability criteria", "family": "SOLAS", "subtopic": "Damage Stability", "tid": "KOL-2018-01-0139", "tray": "review", "candidates": [ { "answer_id": "DAM-STAB-P03-002", "score": 0.8114815354347229, "sibling_score": 0.8114815354347229, "answer_score": null, "sibling_qid": "KOC-2024-12-0485-Q011", "sibling_text": "damage stability criteria", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "General cargo-ship damage stability criteria and requirements", "cross_family": false }, { "answer_id": "DS-049-P02-001", "score": 0.8080188632011414, "sibling_score": 0.8080188632011414, "answer_score": 0.4984020799398422, "sibling_qid": "KOC-2024-09-0405-Q008", "sibling_text": "damage stability intact stability criteria", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Difference between intact stability (static / dynamic) and damage stability criteria", "cross_family": false }, { "answer_id": "DAM-STAB-P03-001", "score": 0.7934430241584778, "sibling_score": 0.7934430241584778, "answer_score": 0.5033734798431396, "sibling_qid": "KOL-2018-05-0175-Q001", "sibling_text": "intact stability damage stability criteria", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Intact, static, dynamic and damage stability: difference and criteria", "cross_family": false } ] }, { "qid": "KOL-2018-01-0140-Q003", "text": "GMDSS all details. Why did it come. Date on which amendment enforced.", "family": "SOLAS - LSA & Lifeboats", "subtopic": "EPIRB / SART", "tid": "KOL-2018-01-0140", "tray": "new", "candidates": [ { "answer_id": "UNL-330-001", "score": 0.5612443089485168, "sibling_score": 0.5612443089485168, "answer_score": null, "sibling_qid": "MUM-2026-05-3193-Q007", "sibling_text": "gmdss", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What is the function of the main air compressor unloader?", "cross_family": false }, { "answer_id": "SOLAS-OVW-004", "score": 0.5319812327623367, "sibling_score": null, "answer_score": 0.5319812327623367, "sibling_qid": "", "sibling_text": "solas 1988 amendments and how the latest changes arrive 1988 gmdss amendments introduced gmdss into solas chapter iv phased implementation through to 1 feb 1999 1988 solas protocol harmonised system of survey and certification hssc common survey windows and certificate validity anniversary date concept", "sibling_family": "", "via": "answer_title", "answer_title": "SOLAS 1988 amendments and how the latest changes arrive", "cross_family": false }, { "answer_id": "bdc-p05-03", "score": 0.4991404712200165, "sibling_score": 0.4991404712200165, "answer_score": null, "sibling_qid": "CHE-2026-04-0379-Q005", "sibling_text": "gmdss source of supply", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "CQ-BDC-025 GMDSS reserve battery — requirement, supply, voltage and equipment Medium", "cross_family": true } ] }, { "qid": "KOL-2018-01-0140-Q006", "text": "What is management review in reference to ISM.", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOL-2018-01-0140", "tray": "review", "candidates": [ { "answer_id": "ISM-AUD-P02-006", "score": 0.7596839666366577, "sibling_score": 0.7596839666366577, "answer_score": 0.44365983605384823, "sibling_qid": "MUM-2026-06-3542-Q002", "sibling_text": "management review of ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Master's review, company / management review and change management", "cross_family": false }, { "answer_id": "ISM-ELEM-006", "score": 0.621999204158783, "sibling_score": 0.621999204158783, "answer_score": 0.45106964111328124, "sibling_qid": "MUM-2025-06-0335-Q001", "sibling_text": "management review", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Master’s review & management review", "cross_family": false }, { "answer_id": "ISM-AUD-P02-002", "score": 0.6089497208595276, "sibling_score": 0.6089497208595276, "answer_score": null, "sibling_qid": "MUM-2022-09-0044-Q001", "sibling_text": "ism review", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM Code — what it is, purpose, objectives and structure", "cross_family": false } ] }, { "qid": "KOL-2018-01-0141-Q001", "text": "IG alarms and trips.", "family": "Tanker - Inert Gas System", "subtopic": "IG Alarms / Trips", "tid": "KOL-2018-01-0141", "tray": "review", "candidates": [ { "answer_id": "IGAT-583-001", "score": 0.7811686396598816, "sibling_score": 0.7811686396598816, "answer_score": 0.4530900180339813, "sibling_qid": "MUM-2026-04-0929-Q002", "sibling_text": "ig alarms and trips", "sibling_family": "Tanker - Inert Gas System", "via": "sibling", "answer_title": "State all the alarms, trips and safety cut-outs provided on a tanker inert gas (IG) system.", "cross_family": false }, { "answer_id": "MR-DS-PV-B-003", "score": 0.45927720069885253, "sibling_score": null, "answer_score": 0.45927720069885253, "sibling_qid": "", "sibling_text": "3 alarms trips valves and abnormal conditions of the deck seal key seal alarm low water level audible and visual fss requirement any low low trip interlock of gas delivery is maker ship sms logic and should be quoted from the approved ig manual a low seal a lost first barrier pressure oxygen instrumentation when ig is being supplied continuously indicate and permanently record the pressure of the ", "sibling_family": "", "via": "answer_title", "answer_title": "3. Alarms, trips, valves, and abnormal conditions of the deck seal", "cross_family": false }, { "answer_id": "IGAT-583-003", "score": 0.4341107964515686, "sibling_score": null, "answer_score": 0.4341107964515686, "sibling_qid": "", "sibling_text": "what are the set values for the ig system alarms and trips ig line high low and low low pressure oxygen content pv valve and breaker pressures statutory fss code ch 15 msc 367 93 oxygen alarm in excess of 5 by volume in the delivered gas 2 2 4 5 1 1 statutory gas pressure alarm less than 100 mm water gauge 2 2 4 5 1 3", "sibling_family": "", "via": "answer_title", "answer_title": "What are the set values for the IG system alarms and trips — IG line high, low and low-low pressure, oxygen content, PV valve and breaker pressures?", "cross_family": false } ] }, { "qid": "KOL-2018-01-0144-Q004", "text": "LRIT? EPIRB?", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "KOL-2018-01-0144", "tray": "new", "candidates": [ { "answer_id": "EPIRB-001", "score": 0.5314233899116516, "sibling_score": 0.5314233899116516, "answer_score": 0.24815462678670883, "sibling_qid": "KOL-2018-03-0157-Q004", "sibling_text": "epirb", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What is an EPIRB? Explain its construction, working, operation and battery specification.", "cross_family": true }, { "answer_id": "EPIRB-SART-001", "score": 0.24222208112478255, "sibling_score": null, "answer_score": 0.24222208112478255, "sibling_qid": "", "sibling_text": "what is the difference between epirb and sart give the function construction use and operation of each epirb 406 mhz satellite distress alert to cospas sarsat plus a 121 5 mhz homing signal float free with a hydrostatic release battery at least 48 hours unique 15 hex digit id registered to the vessel sart radar 9 ghz x band only 9 2 9 5 ghz it does not answer s band radar responds to interrogation", "sibling_family": "", "via": "answer_title", "answer_title": "What is the difference between EPIRB and SART? Give the function, construction, use and operation of each.", "cross_family": false }, { "answer_id": "EPIRB-002", "score": 0.23584179282188414, "sibling_score": null, "answer_score": 0.23584179282188414, "sibling_qid": "", "sibling_text": "how is the epirb tested monthly built in self test to the maker s manual plus a float free mounting check logged in the gmdss log never a live transmission annual performance test by an approved shore based maintainer or qualified technician solas iv 15 9 to the msc 1 circ 1040 rev 2 testing guidelines at intervals not exceeding 12 months frequency stability signal strength coding", "sibling_family": "", "via": "answer_title", "answer_title": "How is the EPIRB tested?", "cross_family": false } ] }, { "qid": "KOL-2018-01-0145-Q005", "text": "SSO and PFSO", "family": "ISPS", "subtopic": "SSP / SSAS / SSO / CSO", "tid": "KOL-2018-01-0145", "tray": "new", "candidates": [ { "answer_id": "ISPS-P03-002", "score": 0.634749174118042, "sibling_score": 0.634749174118042, "answer_score": 0.3026649564504623, "sibling_qid": "KOC-2026-09-2206-Q006", "sibling_text": "cso and sso", "sibling_family": "ISPS", "via": "sibling", "answer_title": "CSO and SSO: difference, combined duties and relationship", "cross_family": false }, { "answer_id": "ISPS-P03-003", "score": 0.5567379593849182, "sibling_score": 0.5567379593849182, "answer_score": null, "sibling_qid": "KOC-2022-09-0099-Q013", "sibling_text": "sso responsibilities", "sibling_family": "ISPS", "via": "sibling", "answer_title": "Ship Security Officer (SSO): duties and responsibilities", "cross_family": false }, { "answer_id": "ISPS-SL-002", "score": 0.5497975945472717, "sibling_score": 0.5497975945472717, "answer_score": null, "sibling_qid": "KOC-2024-03-0318-Q007", "sibling_text": "isps code procedure for certification role of ro role of sso", "sibling_family": "ISPS", "via": "sibling", "answer_title": "Elements, contents, functional requirements, training and equipment", "cross_family": false } ] }, { "qid": "KOL-2018-01-1336-Q004", "text": "what is radiant heat boiler? Never heard", "family": "Boilers - Construction & Components", "subtopic": "Boiler Types / Construction", "tid": "KOL-2018-01-1336", "tray": "new", "candidates": [ { "answer_id": "BLR-TUBE-P01-002", "score": 0.570231556892395, "sibling_score": 0.570231556892395, "answer_score": 0.41191861927509305, "sibling_qid": "KOL-2019-03-1444-Q006", "sibling_text": "what are wall tubes boilers", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "03. Types, functions and arrangement of boiler tubes", "cross_family": false }, { "answer_id": "BLR-CAP-BOILER-CAPACITY-RATING-005", "score": 0.5454698801040649, "sibling_score": 0.5454698801040649, "answer_score": null, "sibling_qid": "MUM-2026-09-3885-Q004", "sibling_text": "types of boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "What are boiler pressure ratings or maximum working pressure?", "cross_family": false }, { "answer_id": "BLR-TUBE-P01-001", "score": 0.5427297949790955, "sibling_score": 0.5427297949790955, "answer_score": null, "sibling_qid": "CHE-2026-05-0632-Q010", "sibling_text": "why smoke tube boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "01. Attaching, fitting and supporting boiler tubes", "cross_family": false } ] }, { "qid": "KOL-2018-01-1339-Q001", "text": "type of engine,adv of super long stroke engine.", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOL-2018-01-1339", "tray": "review", "candidates": [ { "answer_id": "SB-RATIO-003", "score": 0.7281056642532349, "sibling_score": 0.7281056642532349, "answer_score": 0.5798930644989013, "sibling_qid": "CHE-2025-08-0213-Q003", "sibling_text": "adv of long stroke engines", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Advantages of a long, super-long or ultra-long stroke engine — on the engine, on the ship, and to the owner", "cross_family": true }, { "answer_id": "SB-RATIO-002", "score": 0.7212923169136047, "sibling_score": 0.7212923169136047, "answer_score": null, "sibling_qid": "KOL-2022-07-1699-Q001", "sibling_text": "type of engine ratio for short long and super long stroke adv of long stroke", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Differentiate short, long, super-long and ultra-long stroke engines, with the exact ratio of each. What is S and what is L?", "cross_family": true }, { "answer_id": "ENG-NOM-005", "score": 0.6941545009613037, "sibling_score": 0.6941545009613037, "answer_score": null, "sibling_qid": "MUM-2024-11-2779-Q001", "sibling_text": "engine nomenclature explain super long stroke", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "KOL-2018-01-1341-Q002", "text": "Mac valve type? Why plate type? Advantage?", "family": "Air Compressor", "subtopic": "Reciprocating Compressor", "tid": "KOL-2018-01-1341", "tray": "new", "candidates": [ { "answer_id": "MAC-598-001", "score": 0.5611079335212708, "sibling_score": 0.5611079335212708, "answer_score": null, "sibling_qid": "KOC-2025-12-1084-Q004", "sibling_text": "mac valve parts explain", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "The main air compressor valve — arrangement, parts, and why the construction is so complex", "cross_family": false }, { "answer_id": "PTHE-001", "score": 0.5222845673561096, "sibling_score": 0.5222845673561096, "answer_score": 0.3646343618631363, "sibling_qid": "MUM-2026-05-3345-Q004", "sibling_text": "disadvantage of plate type", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Plate vs shell-and-tube: advantages, efficiency and selection", "cross_family": true }, { "answer_id": "GV-330-001", "score": 0.47145140171051025, "sibling_score": 0.47145140171051025, "answer_score": null, "sibling_qid": "MUM-2026-07-3696-Q007", "sibling_text": "gate valve advantages", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Draw and explain the gate valve — construction, main parts, operation & onboard use", "cross_family": true } ] }, { "qid": "KOL-2018-01-1341-Q006", "text": "If u have to tow a ship? In which position u will keep rudder? Explained mechanically and hydraulically locking?", "family": "Steering Gear & Hydraulics", "subtopic": "Tiller / Rudder Stock", "tid": "KOL-2018-01-1341", "tray": "review", "candidates": [ { "answer_id": "STEER-055-A-004", "score": 0.7250942587852478, "sibling_score": 0.7250942587852478, "answer_score": null, "sibling_qid": "KOL-2021-08-1618-Q004", "sibling_text": "rudder hydraulic locking", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Hydraulic faults — air, sluggish response, locking, leakage", "cross_family": false }, { "answer_id": "SG-055-B-003", "score": 0.7072304487228394, "sibling_score": 0.7072304487228394, "answer_score": null, "sibling_qid": "KOL-2022-09-1711-Q005", "sibling_text": "type of steering gear in your ship redundancy how can we hydraulically lock steering gear", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Redundancy and the single-failure requirement (50% / 100%)", "cross_family": false }, { "answer_id": "SG-RAM-003", "score": 0.6977209448814392, "sibling_score": 0.6977209448814392, "answer_score": 0.4893607437610626, "sibling_qid": "KOL-2021-07-1600-Q004", "sibling_text": "what type of ram was in your ship ram rudder hydraulic locking in ram steering gear", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Four-ram steering gear — bridge-to-rudder working, 100% capacity not redundancy, and hydraulic locking", "cross_family": false } ] }, { "qid": "KOL-2018-01-1346-Q005", "text": "Which pin Dia is bigger in engine.", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft / Crankpin", "tid": "KOL-2018-01-1346", "tray": "new", "candidates": [ { "answer_id": "XHEAD-303-003", "score": 0.6428041458129883, "sibling_score": 0.6428041458129883, "answer_score": 0.48453621864318847, "sibling_qid": "KOL-2018-08-0209-Q006", "sibling_text": "crosshead pin dia why bigger", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead pin and bearing design, ovality and diameter checks, modern shell design", "cross_family": true }, { "answer_id": "XHD-BRG-C-004", "score": 0.5909699201583862, "sibling_score": 0.5909699201583862, "answer_score": null, "sibling_qid": "KOL-2026-02-2039-Q005", "sibling_text": "forgot cross by internal lubrication in 2stroke engines why xhd pin of bigger diameter", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "D. Crosshead and guide-shoe lubrication: oil path, the no-load-reversal film problem, MAN vs Sulzer", "cross_family": true }, { "answer_id": "CRKPIN-P02-002", "score": 0.580134928226471, "sibling_score": 0.580134928226471, "answer_score": null, "sibling_qid": "KOL-2020-06-3340-Q002", "sibling_text": "u have 4 inch and 8 inch crank pin were u will measure the clearance", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankpin bearing clearance — measurement and interpretation", "cross_family": false } ] }, { "qid": "KOL-2018-01-1347-Q001", "text": "What kind of Main Engine you worked on the last ship?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOL-2018-01-1347", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P01-001", "score": 0.7068603038787842, "sibling_score": 0.7068603038787842, "answer_score": null, "sibling_qid": "CHE-2026-02-0243-Q001", "sibling_text": "type of ship and type of main engine you worked", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7033858299255371, "sibling_score": 0.7033858299255371, "answer_score": null, "sibling_qid": "MUM-2026-09-3882-Q001", "sibling_text": "introduction types of ship main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.6622314453125, "sibling_score": 0.6622314453125, "answer_score": null, "sibling_qid": "MUM-2026-05-3164-Q001", "sibling_text": "last ship sailed main engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "KOL-2018-01-1348-Q006", "text": "Improved high lift safety valve,how fast action occur for lifting and seating.", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2018-01-1348", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.6597949266433716, "sibling_score": 0.6597949266433716, "answer_score": null, "sibling_qid": "MUM-2026-03-2942-Q021", "sibling_text": "20 spectilty and lift of improved high lift safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-002", "score": 0.60477614402771, "sibling_score": 0.60477614402771, "answer_score": null, "sibling_qid": "KOL-2026-02-3922-Q005", "sibling_text": "what is lifting of safety valve tell only within 3 percent of designated set pressure nothing else", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Acceptance limits and durations — the accumulation limit, the maximum test periods, and the action if the limit is exceeded", "cross_family": false }, { "answer_id": "ACSS-002", "score": 0.44497416019439695, "sibling_score": null, "answer_score": 0.44497416019439695, "sibling_qid": "", "sibling_text": "relief safety valves settings testing lifting reasons bursting disc set just above stage working pressure the class standard accumulation limit is about 10 though the exact set point is a maker sms value non isolable from its stage test to the maker s method easing gear or test rig for lifting pressure log and reset", "sibling_family": "", "via": "answer_title", "answer_title": "Relief / safety valves: settings, testing, lifting reasons; bursting disc", "cross_family": false } ] }, { "qid": "KOL-2018-01-1348-Q008", "text": "Exhaust system tuning", "family": "2-Stroke - Exhaust, Valve & Starting Air", "subtopic": "Exhaust Valve & Exhaust System", "tid": "KOL-2018-01-1348", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-003", "score": 0.7899904251098633, "sibling_score": 0.7899904251098633, "answer_score": null, "sibling_qid": "KOL-2019-10-1489-Q002", "sibling_text": "detuning of exhaust valve", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Construction, seat geometry and overhaul checks", "cross_family": false }, { "answer_id": "CPP-SGX-04", "score": 0.7617658376693726, "sibling_score": 0.7617658376693726, "answer_score": 0.623728221654892, "sibling_qid": "KOL-2021-08-1620-Q004", "sibling_text": "tuned exhaust system in engine i dont know anything about this but something related to scavanging and exhausting", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Tuned exhaust system", "cross_family": true }, { "answer_id": "EXHV-080-BF37-001", "score": 0.7426103949546814, "sibling_score": 0.7426103949546814, "answer_score": null, "sibling_qid": "KOL-2025-11-2025-Q005", "sibling_text": "variable exhaust closing", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "What is variable exhaust valve closing (VEC)? Components and advantages.", "cross_family": false } ] }, { "qid": "KOL-2018-01-1349-Q001", "text": "Semi built crank shaft. All details.", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft Material", "tid": "KOL-2018-01-1349", "tray": "review", "candidates": [ { "answer_id": "CRANK-217-001", "score": 0.7506865859031677, "sibling_score": 0.7506865859031677, "answer_score": 0.5776606082916259, "sibling_qid": "MUM-2026-01-1240-Q003", "sibling_text": "crankshaft type explain semi built", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankshaft types and how the type is identified", "cross_family": false }, { "answer_id": "CRANK-217-002", "score": 0.7052468061447144, "sibling_score": 0.7052468061447144, "answer_score": 0.5724901497364044, "sibling_qid": "MUM-2026-05-3163-Q008", "sibling_text": "how is semi built crankshaft constructed some cross questions like advantages over fully built and where these type of crankshaft is seen", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Semi-built crankshaft: construction, fitting and comparison", "cross_family": false }, { "answer_id": "CRANK-217-004", "score": 0.6402238011360168, "sibling_score": 0.6402238011360168, "answer_score": null, "sibling_qid": "MUM-2026-02-2570-Q003", "sibling_text": "semi built crank shaft slippage", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankshaft slippage, tell-tale marks and action if found", "cross_family": false } ] }, { "qid": "KOL-2018-01-2166-Q004", "text": "how main engine rpm transmitted", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Encoders", "tid": "KOL-2018-01-2166", "tray": "review", "candidates": [ { "answer_id": "PROX-SW-004", "score": 0.6823432445526123, "sibling_score": 0.6823432445526123, "answer_score": null, "sibling_qid": "NOI-2026-09-0007-Q005", "sibling_text": "how main engine rpm is sensed", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Speed measurement by sensor, and the proximity sensor working principle", "cross_family": true }, { "answer_id": "TC-CS-P01-011", "score": 0.6305317878723145, "sibling_score": 0.6305317878723145, "answer_score": null, "sibling_qid": "KOC-2021-08-1765-Q010", "sibling_text": "main engine t c rpm value", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "K·Turbocharger rpm — typical values", "cross_family": true }, { "answer_id": "EPC-P03-006", "score": 0.5991575717926025, "sibling_score": 0.5991575717926025, "answer_score": null, "sibling_qid": "KOL-2026-05-4089-Q009", "sibling_text": "how rpm indicator of turbocharger tachometer working principle", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "How does a tachometer work — working principle and location — and what is a tacho-generator?", "cross_family": false } ] }, { "qid": "KOL-2018-01-2166-Q005", "text": "Dont remember", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOL-2018-01-2166", "tray": "review", "candidates": [ { "answer_id": "VIB-BAL-B-003", "score": 0.7936093211174011, "sibling_score": 0.7936093211174011, "answer_score": null, "sibling_qid": "KOL-2018-08-0204-Q006", "sibling_text": "not remember", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Torsional vibration: what it is, what causes it, how it is controlled", "cross_family": true }, { "answer_id": "MIP-264-001", "score": 0.7191442847251892, "sibling_score": 0.7191442847251892, "answer_score": null, "sibling_qid": "KOL-2018-07-1395-Q005", "sibling_text": "don t rem mep", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Define MEP / IMEP / MIP and their significance", "cross_family": true }, { "answer_id": "BWMS-C-002", "score": 0.5850305557250977, "sibling_score": 0.5850305557250977, "answer_score": null, "sibling_qid": "KOL-2022-05-0641-Q005", "sibling_text": "bwts one more question but forgot", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Types of BWTS and their working principles", "cross_family": true } ] }, { "qid": "KOL-2018-01-2171-Q003", "text": "Vaccum diode", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Zener / Diode / Rectifier", "tid": "KOL-2018-01-2171", "tray": "new", "candidates": [ { "answer_id": "EPC-P02-01", "score": 0.6341891288757324, "sibling_score": 0.6341891288757324, "answer_score": null, "sibling_qid": "MUM-2025-08-1571-Q002", "sibling_text": "voltage diode", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a zener diode? Draw its symbol, explain its working principle, and draw and explain its characteristic curve including the zener (breakdown) voltage.", "cross_family": false }, { "answer_id": "EPC-P01-01", "score": 0.6123853921890259, "sibling_score": 0.6123853921890259, "answer_score": 0.4174407109618187, "sibling_qid": "MUM-2026-03-2035-Q009", "sibling_text": "diode", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a diode? Symbol, forward and reverse bias, and the characteristic curve", "cross_family": false }, { "answer_id": "EPC-P01-02", "score": 0.5933860540390015, "sibling_score": 0.5933860540390015, "answer_score": 0.43026839196681976, "sibling_qid": "KOC-2026-02-1715-Q004", "sibling_text": "type of diodes", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Types of diodes, and where diodes are used on board", "cross_family": false } ] }, { "qid": "KOL-2018-01-2172-Q002", "text": "solas requirement for emergency power in cargo ships?", "family": "Electrical - Generator & Alternator", "subtopic": "Emergency DG", "tid": "KOL-2018-01-2172", "tray": "review", "candidates": [ { "answer_id": "EDG-P01-001", "score": 0.7156268954277039, "sibling_score": 0.7156268954277039, "answer_score": 0.5755960524082183, "sibling_qid": "KOL-2025-09-2875-Q007", "sibling_text": "emergency sources of power onboard solas requirements", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Emergency source of power — the SOLAS requirements", "cross_family": false }, { "answer_id": "EMG-DG-P02-FINAL-2-001", "score": 0.6753974556922913, "sibling_score": 0.6753974556922913, "answer_score": 0.5463980138301849, "sibling_qid": "KOL-2025-10-2885-Q003", "sibling_text": "solas requirements in details about emergency source of supply", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Emergency generator loads and duration of emergency supply", "cross_family": false }, { "answer_id": "EMG-DG-P02-FINAL-2-002", "score": 0.6686670184135437, "sibling_score": 0.6686670184135437, "answer_score": 0.5500683128833771, "sibling_qid": "KOC-2025-02-1493-Q007", "sibling_text": "emergency power solas requirements what is provided for the transient period dead ship recovery procedure internal engine starting on astern but fails to start in ahead reasons got fn 4b", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Transitional source of emergency power and its duration", "cross_family": false } ] }, { "qid": "KOL-2018-01-3114-Q002", "text": "rudder supporting arrangement", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2018-01-3114", "tray": "review", "candidates": [ { "answer_id": "TRS-002", "score": 0.6833532452583313, "sibling_score": 0.6833532452583313, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.6094374060630798, "sibling_score": 0.6094374060630798, "answer_score": null, "sibling_qid": "MUM-2026-06-3584-Q005", "sibling_text": "what takes weight of rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "HULL-PAINT-002", "score": 0.585817277431488, "sibling_score": 0.585817277431488, "answer_score": null, "sibling_qid": "CHE-2026-02-0110-Q012", "sibling_text": "rudder internal painting", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Types of hull coating, the paint scheme by section, and why each is used", "cross_family": false } ] }, { "qid": "KOL-2018-01-3120-Q004", "text": "Fresh water generator production reduced. Checks and action.", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "KOL-2018-01-3120", "tray": "new", "candidates": [ { "answer_id": "FWG-RO-003", "score": 0.6014854907989502, "sibling_score": 0.6014854907989502, "answer_score": 0.4191086947917938, "sibling_qid": "CHE-2026-03-0495-Q003", "sibling_text": "fwg reason for reduced production and parameters", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "The FWG is not producing enough water or its efficiency has dropped. Reasons, checks and action?", "cross_family": false }, { "answer_id": "VAC-COND-002", "score": 0.48517560958862305, "sibling_score": 0.48517560958862305, "answer_score": null, "sibling_qid": "KOL-2026-07-4255-Q006", "sibling_text": "fresh water generator not getting vaccum why any 6 reasons", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Low vacuum, suction loss and failure to build vacuum — the reasons", "cross_family": false }, { "answer_id": "FWG-RO-001", "score": 0.4844706952571869, "sibling_score": 0.4844706952571869, "answer_score": null, "sibling_qid": "MUM-2026-07-3709-Q006", "sibling_text": "fresh water generator not getting vacuum why any 6 reasons", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "How is vacuum created in the FWG, why does it run under vacuum, and what if the vacuum will not come?", "cross_family": false } ] }, { "qid": "KOL-2018-01-3122-Q002", "text": "What are the problems in welding Aluminium", "family": "Workshop & Welding", "subtopic": "Welding / NDT / Materials", "tid": "KOL-2018-01-3122", "tray": "review", "candidates": [ { "answer_id": "WELD-B-001", "score": 0.7493106722831726, "sibling_score": 0.7493106722831726, "answer_score": 0.5054176688194275, "sibling_qid": "MUM-2021-06-2129-Q001", "sibling_text": "aluminium welding difficulties and procedures", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding & crack-repair of aluminium and cast iron, including metal stitching", "cross_family": false }, { "answer_id": "WBS-C-001", "score": 0.7251843810081482, "sibling_score": 0.7251843810081482, "answer_score": null, "sibling_qid": "KOL-2018-01-3111-Q001", "sibling_text": "alumunium welding diffuclties and how are they dealt with", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding, brazing and soldering — what they are, the shipboard processes, and workshop safety", "cross_family": false }, { "answer_id": "WELD-DEF-001", "score": 0.6632271409034729, "sibling_score": 0.6632271409034729, "answer_score": 0.49375462532043457, "sibling_qid": "KOL-2022-08-4011-Q004", "sibling_text": "welding defects reasons", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Common welding defects and their causes", "cross_family": false } ] }, { "qid": "KOL-2018-02-0147-Q005", "text": "Full gmdss explain", "family": "SOLAS - LSA & Lifeboats", "subtopic": "EPIRB / SART", "tid": "KOL-2018-02-0147", "tray": "new", "candidates": [ { "answer_id": "UNL-330-001", "score": 0.6027690768241882, "sibling_score": 0.6027690768241882, "answer_score": null, "sibling_qid": "MUM-2026-05-3193-Q007", "sibling_text": "gmdss", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What is the function of the main air compressor unloader?", "cross_family": false }, { "answer_id": "bdc-p05-03", "score": 0.536562442779541, "sibling_score": 0.536562442779541, "answer_score": 0.3856512621045112, "sibling_qid": "MUM-2026-05-3273-Q003", "sibling_text": "gmdss and equipment under this", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "CQ-BDC-025 GMDSS reserve battery — requirement, supply, voltage and equipment Medium", "cross_family": true }, { "answer_id": "LB-D-010", "score": 0.533883273601532, "sibling_score": 0.533883273601532, "answer_score": null, "sibling_qid": "KOL-2017-08-0107-Q006", "sibling_text": "4 life boat drills full procedure and equipents to be trained for and tested gmdss radio was what he was looking for probably", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat drills — criteria, training and equipment tested", "cross_family": false } ] }, { "qid": "KOL-2018-02-0147-Q006", "text": "Bulbous bow construction", "family": "", "subtopic": "Bulbous Bow", "tid": "KOL-2018-02-0147", "tray": "new", "candidates": [ { "answer_id": "PPS-230-006", "score": 0.5915203094482422, "sibling_score": 0.5915203094482422, "answer_score": 0.3994713738560676, "sibling_qid": "MUM-2026-02-0782-Q011", "sibling_text": "bulbous bow how it is connected to ship shape of bow", "sibling_family": "", "via": "sibling", "answer_title": "Fore-end / fore-peak structure: draw and describe", "cross_family": false }, { "answer_id": "BSBH-420-002", "score": 0.4961694210767746, "sibling_score": 0.45923346281051636, "answer_score": 0.4961694210767746, "sibling_qid": "KOC-2026-01-0781-Q005", "sibling_text": "cross section of forward of bulk head", "sibling_family": "SOLAS", "via": "answer_title", "answer_title": "Fore-end / forepeak construction forward of the collision bulkhead — members and cross-section", "cross_family": false }, { "answer_id": "FWFB-P02-005", "score": 0.4913571566343307, "sibling_score": null, "answer_score": 0.4913571566343307, "sibling_qid": "", "sibling_text": "other members breast hook bulb angle cross tie margin coffin shoe plates breast hook horizontal triangular plate bracket at the bow and aft tying the two sides across the centreline at the stem helps resist panting forward bulb angle bulb flat stiffener a flat bar with a rounded bulb on one edge for added stiffness without a separate flange shell deck and bulkhead stiffening", "sibling_family": "", "via": "answer_title", "answer_title": "Other members: breast hook, bulb angle, cross tie, margin / coffin / shoe plates", "cross_family": false } ] }, { "qid": "KOL-2018-02-0148-Q001", "text": "Intact stability , Angle of lol by Rao", "family": "SOLAS", "subtopic": "Angle of Loll / Stiff & Tender", "tid": "KOL-2018-02-0148", "tray": "new", "candidates": [ { "answer_id": "LOLL-CORE-P01-001", "score": 0.605832040309906, "sibling_score": 0.605832040309906, "answer_score": 0.4612857222557068, "sibling_qid": "KOL-2021-10-0560-Q002", "sibling_text": "rao what ia angle of lol", "sibling_family": "", "via": "sibling", "answer_title": "What is angle of loll?", "cross_family": false }, { "answer_id": "LOLL-P02-002", "score": 0.590488612651825, "sibling_score": 0.590488612651825, "answer_score": 0.4492910325527191, "sibling_qid": "KOC-2025-06-0605-Q005", "sibling_text": "what is angle of lol how to correct it dynamic stability standards", "sibling_family": "", "via": "sibling", "answer_title": "1. Correcting angle of loll — the ballasting sequence", "cross_family": false }, { "answer_id": "LOLL-P02-005", "score": 0.5783233046531677, "sibling_score": 0.5783233046531677, "answer_score": 0.45385590493679046, "sibling_qid": "KOL-2016-11-0029-Q003", "sibling_text": "angle of lol angle of lurch angle of downflooding and practical application angle of vanishing stability", "sibling_family": "", "via": "sibling", "answer_title": "5. Loll among the limits — vanishing stability, lurch, downflooding, contraflexure", "cross_family": false } ] }, { "qid": "KOL-2018-02-1351-Q002", "text": "Attempt :3", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOL-2018-02-1351", "tray": "new", "candidates": [ { "answer_id": "ISM-2E-A-004", "score": 0.5377744436264038, "sibling_score": 0.5377744436264038, "answer_score": null, "sibling_qid": "KOC-2025-03-0931-Q017", "sibling_text": "works done as 3e", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Shipboard jobs, machineries and maintenance areas under the Second Engineer", "cross_family": true }, { "answer_id": "A6-NSEC-005", "score": 0.5265812873840332, "sibling_score": 0.5265812873840332, "answer_score": null, "sibling_qid": "MUM-2024-11-2777-Q007", "sibling_text": "seemp 3", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP — Part I, II & III", "cross_family": true }, { "answer_id": "SEEMP-123-B-001", "score": 0.5265812873840332, "sibling_score": 0.5265812873840332, "answer_score": null, "sibling_qid": "MUM-2026-04-3030-Q003", "sibling_text": "seemp 3", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP Part III — the ship's operational carbon-intensity (CII) plan", "cross_family": true } ] }, { "qid": "KOL-2018-02-1351-Q003", "text": "Function attempt:2", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOL-2018-02-1351", "tray": "new", "candidates": [ { "answer_id": "IMO-CODES-P03-002", "score": 0.4509384036064148, "sibling_score": 0.4509384036064148, "answer_score": null, "sibling_qid": "MUM-2026-03-0815-Q003", "sibling_text": "which function", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": false }, { "answer_id": "SEEMP-123-B-001", "score": 0.42581409215927124, "sibling_score": 0.42581409215927124, "answer_score": null, "sibling_qid": "KOC-2026-03-0880-Q002", "sibling_text": "function 3 contents", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SEEMP Part III — the ship's operational carbon-intensity (CII) plan", "cross_family": true }, { "answer_id": "AV6-P05-01", "score": 0.41884514689445496, "sibling_score": 0.41884514689445496, "answer_score": null, "sibling_qid": "KOC-2025-03-0558-Q007", "sibling_text": "seemp 2", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP Part II — IMO DCS plan and contents", "cross_family": true } ] }, { "qid": "KOL-2018-02-1353-Q002", "text": "Showed layout of fuel pump nd told to explain the parts", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Pump Overhaul", "tid": "KOL-2018-02-1353", "tray": "review", "candidates": [ { "answer_id": "FP-OVHL-002", "score": 0.8168796896934509, "sibling_score": 0.8168796896934509, "answer_score": null, "sibling_qid": "KOL-2019-08-1474-Q004", "sibling_text": "made outline of fuel pump and asked to identify and mark all tha components", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel-pump components, clearances and markings", "cross_family": false }, { "answer_id": "FCL-P03-002", "score": 0.7285220623016357, "sibling_score": 0.7285220623016357, "answer_score": null, "sibling_qid": "KOC-2021-09-1767-Q004", "sibling_text": "fuel pump lead with dia i explained mc engine one", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "MAN B&W / MC-C / MCC fuel pump timing and lead", "cross_family": false }, { "answer_id": "FINJ-001", "score": 0.7019176483154297, "sibling_score": 0.7019176483154297, "answer_score": 0.5304120182991028, "sibling_qid": "KOC-2025-07-1926-Q003", "sibling_text": "draw and explain main engine fuel injector", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel injector — construction, working principle and general arrangement", "cross_family": false } ] }, { "qid": "KOL-2018-02-2175-Q002", "text": "zeneer barier explain diagram", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOL-2018-02-2175", "tray": "new", "candidates": [ { "answer_id": "EPC-P02-01", "score": 0.44986483454704285, "sibling_score": 0.44986483454704285, "answer_score": 0.3262495055794716, "sibling_qid": "KOC-2025-05-1913-Q009", "sibling_text": "draw zener symbol", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a zener diode? Draw its symbol, explain its working principle, and draw and explain its characteristic curve including the zener (breakdown) voltage.", "cross_family": false }, { "answer_id": "EPC-P02-03", "score": 0.44548410177230835, "sibling_score": 0.44548410177230835, "answer_score": null, "sibling_qid": "MUM-2026-07-3813-Q002", "sibling_text": "zener barrier full explanation every component", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Where is a zener diode used on board and why — voltage regulator, AVR, clipper — and explain one application in detail.", "cross_family": false }, { "answer_id": "ISB-435-003", "score": 0.4360593557357788, "sibling_score": 0.4360593557357788, "answer_score": null, "sibling_qid": "KOC-2025-11-1977-Q007", "sibling_text": "diagram how", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Intermediate shaft bearing — lubrication, cooling, cross-section and parts", "cross_family": false } ] }, { "qid": "KOL-2018-02-2175-Q003", "text": "ICCP draw explain?", "family": "Electrical - ICCP & Cathodic Protection", "subtopic": "ICCP", "tid": "KOL-2018-02-2175", "tray": "review", "candidates": [ { "answer_id": "ICCP-119-P01-002", "score": 0.7715412974357605, "sibling_score": 0.7715412974357605, "answer_score": 0.32688353955745697, "sibling_qid": "KOC-2023-08-1280-Q003", "sibling_text": "iccp draw explain", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP circuit / control arrangement, construction and main components", "cross_family": false }, { "answer_id": "DCP-FIXED-A-001", "score": 0.6672830581665039, "sibling_score": 0.6672830581665039, "answer_score": null, "sibling_qid": "MUM-2026-07-3797-Q001", "sibling_text": "fixed dcp draw and explain", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Draw and explain the fixed DCP/dry-powder deck fire-fighting system", "cross_family": true }, { "answer_id": "DCP-B-001", "score": 0.5894840955734253, "sibling_score": 0.5894840955734253, "answer_score": null, "sibling_qid": "KOC-2025-07-0630-Q002", "sibling_text": "fixed dcp drawing explanation maintenance", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fixed DCP system — maintenance, agitation, sampling and survey preparation", "cross_family": true } ] }, { "qid": "KOL-2018-02-2176-Q005", "text": "Maintenance and check on the starting panel of heavy duty motor", "family": "Electrical - Motors & Starters", "subtopic": "Starter Panel / Control Circuit", "tid": "KOL-2018-02-2176", "tray": "review", "candidates": [ { "answer_id": "SPH-A-008", "score": 0.7024224400520325, "sibling_score": 0.7024224400520325, "answer_score": null, "sibling_qid": "KOL-2016-10-2075-Q005", "sibling_text": "one motor opened for overhaul standby motor u r starting sparks from terminal box what u ll do u have to run d motor as it is very essential", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "One wire in the terminal box of the auxiliary blower is found heated. What may be the problem?", "cross_family": false }, { "answer_id": "CONT-317-003", "score": 0.6665446162223816, "sibling_score": 0.6665446162223816, "answer_score": null, "sibling_qid": "MUM-2024-07-1444-Q005", "sibling_text": "motor recieved after overhaul how to identify the start and run terminal", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Continuity to confirm terminal identity after overhaul or rewind", "cross_family": false }, { "answer_id": "SPH-A-007", "score": 0.6622921824455261, "sibling_score": 0.6622921824455261, "answer_score": null, "sibling_qid": "MUM-2026-09-3902-Q002", "sibling_text": "motor not starting what to check", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Can a motor be started after single phasing? Why will it not start, and what do you check?", "cross_family": false } ] }, { "qid": "KOL-2018-03-0157-Q001", "text": "Type of ship..car carrier", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2018-03-0157", "tray": "review", "candidates": [ { "answer_id": "SOLAS12-BC-A-001", "score": 0.852498471736908, "sibling_score": 0.852498471736908, "answer_score": 0.492268043756485, "sibling_qid": "NOI-2026-09-0010-Q001", "sibling_text": "type of ship car carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "SOLAS definition and scope of a bulk carrier", "cross_family": false }, { "answer_id": "LPG-LNG-009", "score": 0.7396803498268127, "sibling_score": 0.7396803498268127, "answer_score": null, "sibling_qid": "CHE-2026-04-0164-Q001", "sibling_text": "type of ship sailed lpg carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Gas-carrier fundamentals and ship-specific traps", "cross_family": false }, { "answer_id": "DB-TORBOX-B-003", "score": 0.7243487238883972, "sibling_score": 0.7243487238883972, "answer_score": null, "sibling_qid": "CHE-2026-04-0150-Q001", "sibling_text": "type of ship sailed container", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "What is a torsion box — definition and construction", "cross_family": false } ] }, { "qid": "KOL-2018-03-0157-Q002", "text": "Emergency exit from hold...cross question.. stair is fwd aft or port stbd.", "family": "Risk & Safety Management", "subtopic": "Enclosed Space Entry", "tid": "KOL-2018-03-0157", "tray": "new", "candidates": [ { "answer_id": "BHD-TYPE-A-001", "score": 0.49283555150032043, "sibling_score": 0.49283555150032043, "answer_score": null, "sibling_qid": "KOC-2025-04-0586-Q008", "sibling_text": "cross how is it marked in er bulkhead", "sibling_family": "", "via": "sibling", "answer_title": "Bulkheads — types, classification, functions and purpose", "cross_family": false }, { "answer_id": "BHD-TYP-C-002", "score": 0.48976707458496094, "sibling_score": 0.48976707458496094, "answer_score": null, "sibling_qid": "MUM-2026-04-3031-Q002", "sibling_text": "aft bulkhead", "sibling_family": "", "via": "sibling", "answer_title": "Aft (after peak) bulkhead — what it is and where it sits", "cross_family": false }, { "answer_id": "ESE-P01-004", "score": 0.47348445653915405, "sibling_score": 0.47348445653915405, "answer_score": null, "sibling_qid": "MUM-2023-03-0087-Q008", "sibling_text": "f o bunker tank enclosed space entry", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "Fuel-oil, settling, bunker or double-bottom tank entry and inspection", "cross_family": false } ] }, { "qid": "KOL-2018-03-0159-Q001", "text": "Which ship? (Car carriers) how d stability is improved in it. How many decks . How many cars in a deck. What is d procedure to remove water from hold. What other arrangements.", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2018-03-0159", "tray": "new", "candidates": [ { "answer_id": "SOLAS12-BC-A-001", "score": 0.6005129218101501, "sibling_score": 0.6005129218101501, "answer_score": null, "sibling_qid": "NOI-2026-09-0010-Q001", "sibling_text": "type of ship car carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "SOLAS definition and scope of a bulk carrier", "cross_family": false }, { "answer_id": "CONT-FIRE-FINAL-1-005", "score": 0.5593736171722412, "sibling_score": 0.5593736171722412, "answer_score": null, "sibling_qid": "MUM-2024-09-0210-Q006", "sibling_text": "tiers of container on deck", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Container ship stability and on-deck tier loading", "cross_family": true }, { "answer_id": "SHELL-PLT-B-001", "score": 0.5475348234176636, "sibling_score": 0.5475348234176636, "answer_score": null, "sibling_qid": "KOL-2018-12-0238-Q036", "sibling_text": "dynamic stability how to improve 3 oiltanker deck firefighting foam details n maint n many ques 4 explosive meter n calib 4th jan 2018 saha bhomik roa fun 3 1 which ship you sailed then major difference between crude and oil tanker 2 which tanker has more freeboard single hull or double hull tanker 3 mlc 2006 documents u carry while joining 4 all about anex 4 5 difference between vacuum and normal sewage plant bhaumik sinha fuction3 04 1 2018ask which ship told him container 1 what is intercostal girder what is stringer what is sheer strake difference between sheer stake and normal strake 2 refer container fire fighting system cargo hold detection system", "sibling_family": "", "via": "sibling", "answer_title": "Sheer strake — location, why strengthened, deck-edge / gunwale connection", "cross_family": false } ] }, { "qid": "KOL-2018-03-0160-Q003", "text": "When we use upper hopper tank of bulk carrier ?", "family": "Cargo Ops - Bulk Carriers", "subtopic": "Heavy Weather Ballast", "tid": "KOL-2018-03-0160", "tray": "review", "candidates": [ { "answer_id": "BC-HOPPER-G-002", "score": 0.7809499502182007, "sibling_score": 0.7809499502182007, "answer_score": 0.5512484788894653, "sibling_qid": "KOL-2021-10-0571-Q002", "sibling_text": "when we use upper hopper tank in bulk carrier", "sibling_family": "", "via": "sibling", "answer_title": "Ballasting the upper hopper / topside tank — when and why", "cross_family": false }, { "answer_id": "BC-HOPPER-G-001", "score": 0.7013435959815979, "sibling_score": 0.7013435959815979, "answer_score": 0.509860947728157, "sibling_qid": "KOL-2017-08-0105-Q001", "sibling_text": "1use of upper and lower hopper tank in bulk carriers", "sibling_family": "", "via": "sibling", "answer_title": "Hopper and topside tanks — what they are and their purpose", "cross_family": false }, { "answer_id": "BC-IMSBC-003", "score": 0.6930567622184753, "sibling_score": 0.6930567622184753, "answer_score": 0.5567426800727844, "sibling_qid": "KOL-2025-07-0984-Q002", "sibling_text": "what is the use of upper hopper tank in bulk carrier how gm changes what is stiff and tender ship", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "3. Topside, upper hopper and lower hopper tanks", "cross_family": false } ] }, { "qid": "KOL-2018-03-0160-Q006", "text": "Clear ground", "family": "Surveys - Statutory", "subtopic": "Detention / Clear Ground", "tid": "KOL-2018-03-0160", "tray": "review", "candidates": [ { "answer_id": "DCG-001", "score": 0.7404435276985168, "sibling_score": 0.7404435276985168, "answer_score": null, "sibling_qid": "KOL-2026-05-4216-Q004", "sibling_text": "clear ground", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is meant by \"clear grounds\", under PSC and under SOLAS? Give examples and state the conditions.", "cross_family": false }, { "answer_id": "DCG-003", "score": 0.6684248447418213, "sibling_score": 0.6684248447418213, "answer_score": null, "sibling_qid": "KOL-2023-09-0767-Q005", "sibling_text": "clear ground give any example of clear ground code", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the PSC deficiency code, which code leads to a detainable deficiency, and can you give an example of a \"clear-ground code\"?", "cross_family": false }, { "answer_id": "DCG-004", "score": 0.5926123261451721, "sibling_score": 0.5926123261451721, "answer_score": null, "sibling_qid": "KOL-2025-08-1020-Q010", "sibling_text": "clear ground nc mnc action", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the relationship between clear grounds, NC and MNC, and what action follows?", "cross_family": false } ] }, { "qid": "KOL-2018-03-0163-Q004", "text": "Safcon survey. Which chapter of Solas", "family": "Surveys - Statutory", "subtopic": "Safety Construction / Cargo Safety Cert", "tid": "KOL-2018-03-0163", "tray": "new", "candidates": [ { "answer_id": "SOLAS-CH-015", "score": 0.530368447303772, "sibling_score": 0.530368447303772, "answer_score": 0.42628169655799864, "sibling_qid": "KOC-2025-01-0505-Q007", "sibling_text": "solas chapter", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS chapters overview - current count and scope", "cross_family": true }, { "answer_id": "SOLAS12-C-001", "score": 0.5293900966644287, "sibling_score": 0.5293900966644287, "answer_score": null, "sibling_qid": "KOC-2022-07-0078-Q001", "sibling_text": "solas chapter", "sibling_family": "", "via": "sibling", "answer_title": "Explain SOLAS Chapter XII for bulk carriers — oral-exam overview", "cross_family": false }, { "answer_id": "SOLAS-OVW-009", "score": 0.5262592434883118, "sibling_score": 0.5262592434883118, "answer_score": null, "sibling_qid": "MUM-2026-07-3798-Q006", "sibling_text": "chapter 9 solas", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "SOLAS Chapter IX — ISM Code (safe operation)", "cross_family": true } ] }, { "qid": "KOL-2018-03-0165-Q009", "text": "Lrit in detail.", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "KOL-2018-03-0165", "tray": "new", "candidates": [ { "answer_id": "AVR-EXC-B-001", "score": 0.3662853240966797, "sibling_score": 0.3662853240966797, "answer_score": null, "sibling_qid": "MUM-2022-09-1356-Q004", "sibling_text": "avr in detail", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Explain the AVR working principle and control-loop operation.", "cross_family": true }, { "answer_id": "EPIRB-SART-001", "score": 0.361647367477417, "sibling_score": 0.361647367477417, "answer_score": null, "sibling_qid": "KOL-2017-09-0112-Q004", "sibling_text": "lrit vdr epirb sart mob marker", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What is the difference between EPIRB and SART? Give the function, construction, use and operation of each.", "cross_family": true }, { "answer_id": "ESP-A-001", "score": 0.35398900508880615, "sibling_score": 0.35398900508880615, "answer_score": null, "sibling_qid": "KOL-2025-11-1116-Q002", "sibling_text": "esp in detail", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the Enhanced Survey Programme (ESP), and what is its purpose?", "cross_family": true } ] }, { "qid": "KOL-2018-03-1355-Q004", "text": "In Boiler safety valve, how Spindle is attached to valve.", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2018-03-1355", "tray": "new", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.6139336824417114, "sibling_score": 0.6139336824417114, "answer_score": null, "sibling_qid": "KOL-2025-07-1814-Q004", "sibling_text": "how spindle is fitted in exhaust valve", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": true }, { "answer_id": "MR-DS-PV-B-006", "score": 0.6088812947273254, "sibling_score": 0.6088812947273254, "answer_score": null, "sibling_qid": "KOC-2026-09-2180-Q009", "sibling_text": "full bore safety valve construction", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "6. 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Crankshaft & Bedplate", "via": "sibling", "answer_title": "Heat treatment: what it is, the main methods, and why it is done", "cross_family": false } ] }, { "qid": "KOL-2018-03-2179-Q001", "text": "Working of sound operated telephone.", "family": "General Marine Engineering", "subtopic": "DO Expansion Phone", "tid": "KOL-2018-03-2179", "tray": "new", "candidates": [ { "answer_id": "BDC-P04-03", "score": 0.5961073637008667, "sibling_score": 0.5961073637008667, "answer_score": null, "sibling_qid": "KOL-2017-07-3961-Q006", "sibling_text": "how telephone working deciding by shine how voltage test in battery he want to listen value of load", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "Battery load test on board — preparation, deciding the load, and reading the result", "cross_family": true }, { "answer_id": "TLGW-330-001", "score": 0.5378331542015076, "sibling_score": 0.5378331542015076, "answer_score": null, "sibling_qid": "KOC-2025-03-0570-Q006", "sibling_text": "telegraph working", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Explain the working of the engine-room telegraph and how a bridge order is received in the ECR", "cross_family": true }, { "answer_id": "AUC-SEN-02", "score": 0.48139744997024536, "sibling_score": 0.48139744997024536, "answer_score": null, "sibling_qid": "KOC-2025-09-1574-Q007", "sibling_text": "analog devices working", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "A/D and I/P signal conversion — where the loop meets the digital controller", "cross_family": true } ] }, { "qid": "KOL-2018-03-2180-Q001", "text": "documents/certificate before doing HV maintenance", "family": "Risk & Safety Management", "subtopic": "Permit to Work / Enclosed Space", "tid": "KOL-2018-03-2180", "tray": "new", "candidates": [ { "answer_id": "HV-SYS-P05-002", "score": 0.580104410648346, "sibling_score": 0.580104410648346, "answer_score": 0.44937741458415986, "sibling_qid": "KOC-2023-12-1311-Q005", "sibling_text": "hv maintenance", "sibling_family": "", "via": "sibling", "answer_title": "Working on the HV system: precautions, isolation and earthing before maintenance", "cross_family": false }, { "answer_id": "CERT-LIST-P02-002", "score": 0.5611447095870972, "sibling_score": 0.5611447095870972, "answer_score": null, "sibling_qid": "KOC-2021-07-0011-Q015", "sibling_text": "documents certificates", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Document of Compliance, Certificate and Statement of Compliance", "cross_family": true }, { "answer_id": "T038-P01-002", "score": 0.5583814382553101, "sibling_score": 0.5583814382553101, "answer_score": null, "sibling_qid": "KOC-2023-01-1229-Q004", "sibling_text": "hv maintanence", "sibling_family": "", "via": "sibling", "answer_title": "HV system onboard — layout, components, applications, earthing & protection", "cross_family": false } ] }, { "qid": "KOL-2018-03-3125-Q005", "text": "Fwg not producing water reason and remedy.", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "KOL-2018-03-3125", "tray": "review", "candidates": [ { "answer_id": "FWG-RO-003", "score": 0.6694951057434082, "sibling_score": 0.6694951057434082, "answer_score": 0.50094353556633, "sibling_qid": "MUM-2022-08-2138-Q006", "sibling_text": "fwg not producing enough water what to do", "sibling_family": "Fresh Water & Domestic Systems", "via": "sibling", "answer_title": "The FWG is not producing enough water or its efficiency has dropped. Reasons, checks and action?", "cross_family": true }, { "answer_id": "VAC-COND-002", "score": 0.5865882635116577, "sibling_score": 0.5865882635116577, "answer_score": null, "sibling_qid": "KOL-2026-07-4255-Q006", "sibling_text": "fresh water generator not getting vaccum why any 6 reasons", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Low vacuum, suction loss and failure to build vacuum — the reasons", "cross_family": false }, { "answer_id": "FWG-RO-001", "score": 0.57884681224823, "sibling_score": 0.57884681224823, "answer_score": null, "sibling_qid": "MUM-2026-07-3709-Q006", "sibling_text": "fresh water generator not getting vacuum why any 6 reasons", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "How is vacuum created in the FWG, why does it run under vacuum, and what if the vacuum will not come?", "cross_family": false } ] }, { "qid": "KOL-2018-03-3126-Q001", "text": "Bumping clearance has being taken from .9 Nd now started again it's hitting the head. Everything thing tight, all clean all gasket ok nothing distrubed.. reason", "family": "Air Compressor", "subtopic": "Reciprocating Compressor", "tid": "KOL-2018-03-3126", "tray": "review", "candidates": [ { "answer_id": "MAC-353-008", "score": 0.6583948135375977, "sibling_score": 0.6583948135375977, "answer_score": 0.5152608633041381, "sibling_qid": "CHE-2026-04-0506-Q001S4", "sibling_text": "air compressor bumping clearance said lead ball method not accepting it", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Taking bumping clearance without opening the cylinder (lead-ball method)", "cross_family": false }, { "answer_id": "MAC-598-003", "score": 0.6478257775306702, "sibling_score": 0.6478257775306702, "answer_score": null, "sibling_qid": "MUM-2022-10-2712-Q005", "sibling_text": "compressor efficiency drop reasons for it how you take bumping clearance in it", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "The compressor is not filling the bottle, or is taking longer than usual, or running continuously on low amps — checks and actions as 2/E", "cross_family": false }, { "answer_id": "AC-VE-001", "score": 0.6400178670883179, "sibling_score": 0.6400178670883179, "answer_score": null, "sibling_qid": "KOL-2023-02-1725-Q007", "sibling_text": "volumetric efficiency of compressor gone done bumping clearance adjustment", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Volumetric efficiency: define it, and if it drops how do you improve it (with bumping clearance)?", "cross_family": false } ] }, { "qid": "KOL-2018-03-3127-Q002", "text": "Pre departure checks on ME and Steering gears . And steering alarms test.", "family": "2-Stroke - Operations & Casualty", "subtopic": "ER Round", "tid": "KOL-2018-03-3127", "tray": "review", "candidates": [ { "answer_id": "STG-055-C-002", "score": 0.7567830085754395, "sibling_score": 0.7567830085754395, "answer_score": null, "sibling_qid": "KOL-2024-07-0849-Q008", "sibling_text": "steering gear checks before departure few more", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "SOLAS steering-gear requirements, tests and drills", "cross_family": true }, { "answer_id": "SG-055-B-002", "score": 0.6980375051498413, "sibling_score": 0.6980375051498413, "answer_score": null, "sibling_qid": "MUM-2022-07-1016-Q006", "sibling_text": "what alarms on steering gear", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Steering-gear alarms, trips and electrical / hydraulic safeties", "cross_family": true }, { "answer_id": "STEER-055-A-005", "score": 0.6863844394683838, "sibling_score": 0.6863844394683838, "answer_score": 0.5269981294870376, "sibling_qid": "KOC-2023-03-0154-Q004", "sibling_text": "steering gear checks", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Checks, clearances, trials and steering-room duties", "cross_family": true } ] }, { "qid": "KOL-2018-03-3128-Q002", "text": "During routine check, you found 4 holding down bolt is loose, wht u will ascertain and actions to be taken.", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Holding Down Bolts", "tid": "KOL-2018-03-3128", "tray": "review", "candidates": [ { "answer_id": "TBR-TT-P02-002", "score": 0.7406384348869324, "sibling_score": 0.7406384348869324, "answer_score": null, "sibling_qid": "MUM-2026-02-2549-Q006", "sibling_text": "holding down bolts tightness check", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Checking tie rod tightness / slackness — stopped and running", "cross_family": false }, { "answer_id": "TBR-TT-P02-001", "score": 0.7394359111785889, "sibling_score": 0.7394359111785889, "answer_score": null, "sibling_qid": "CHE-2026-05-0641-Q012", "sibling_text": "holding down bolts checks and tightening", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Tie rod tightening / hydraulic tensioning procedure", "cross_family": false }, { "answer_id": "FB-COUP-001", "score": 0.6513109803199768, "sibling_score": 0.6513109803199768, "answer_score": null, "sibling_qid": "KOL-2021-02-1577-Q004", "sibling_text": "loose bolts construction and where it is fitted", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What fitted bolts are, what they do, and where they sit onboard", "cross_family": false } ] }, { "qid": "KOL-2018-03-3129-Q005", "text": "What is the difference between high lift safety valve and improved high safety valve ?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2018-03-3129", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.7723976373672485, "sibling_score": 0.7723976373672485, "answer_score": null, "sibling_qid": "MUM-2026-06-3418-Q008", "sibling_text": "constructional diff between high lift and improved high lift safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACRV-005", "score": 0.679744303226471, "sibling_score": 0.679744303226471, "answer_score": 0.45605294704437255, "sibling_qid": "MUM-2026-06-3429-Q010", "sibling_text": "safety valve lift difference", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-003", "score": 0.42961467504501344, "sibling_score": null, "answer_score": 0.42961467504501344, "sibling_qid": "", "sibling_text": "the accumulation test and the safety valve required lift how lift and capacity are verified and why accumulation must stay inside the limit popping test proves setting accumulation test proves installed relieving capacity not two versions of one test sizing the class discharge formula sizes the aggregate valve area from the maker s specified peak evaporation using a constant for the valve type", "sibling_family": "", "via": "answer_title", "answer_title": "The accumulation test and the safety valve — required lift, how lift and capacity are verified, and why accumulation must stay inside the limit", "cross_family": false } ] }, { "qid": "KOL-2018-03-3132-Q003", "text": "Crank case checks in of a/e?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE CRANKCASE", "tid": "KOL-2018-03-3132", "tray": "new", "candidates": [ { "answer_id": "CRKC-INSP-001", "score": 0.6258724331855774, "sibling_score": 0.6258724331855774, "answer_score": 0.42196006178855894, "sibling_qid": "MUM-2026-09-3876-Q005", "sibling_text": "crank case inspection of ae", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Routine main-engine crankcase inspection — checks as 2/E", "cross_family": false }, { "answer_id": "CRK-DEFL-003", "score": 0.5987339615821838, "sibling_score": 0.5987339615821838, "answer_score": null, "sibling_qid": "KOC-2022-05-0961-Q005", "sibling_text": "if 3 e has taken crankshaft deflection how will you check if that s correct", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Verifying deflection readings taken by others", "cross_family": true }, { "answer_id": "AEDEC-291-003", "score": 0.5844539999961853, "sibling_score": 0.5844539999961853, "answer_score": null, "sibling_qid": "KOL-2017-09-3094-Q003", "sibling_text": "checks after a e decarb before putting on load", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "3. Pre-start checks after decarb / recommissioning", "cross_family": false } ] }, { "qid": "KOL-2018-03-3962-Q004", "text": "Pv breaker and pv valve difference. How pressure and vacuum occur and what happens.", "family": "Tanker Operations & IG Systems", "subtopic": "PV Valve / PV Breaker", "tid": "KOL-2018-03-3962", "tray": "review", "candidates": [ { "answer_id": "MAST-PVA-002", "score": 0.7208499312400818, "sibling_score": 0.7208499312400818, "answer_score": 0.5566501677036285, "sibling_qid": "CHE-2026-08-0666-Q007", "sibling_text": "pv valve and pv breaker difference", "sibling_family": "Tanker Operations & IG Systems", "via": "sibling", "answer_title": "P/V valve vs P/V breaker — function, location and difference", "cross_family": false }, { "answer_id": "MAST-PVA-003", "score": 0.6738508939743042, "sibling_score": 0.6738508939743042, "answer_score": 0.49074741601943966, "sibling_qid": "CHE-2025-10-0076-Q005", "sibling_text": "difference between pv valve and pv breaker working principle of both", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "P/V breaker — construction and working principle", "cross_family": true }, { "answer_id": "MAST-PVA-004", "score": 0.6668189167976379, "sibling_score": 0.6668189167976379, "answer_score": 0.6032572507858276, "sibling_qid": "KOC-2026-01-0786-Q008", "sibling_text": "pv valve pv breaker difference their settings", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "P/V valve & P/V breaker — pressure/vacuum settings and the basis", "cross_family": true } ] }, { "qid": "KOL-2018-03-3962-Q005", "text": "Mob marker and regulations, where fitted and when used.", "family": "General Marine Engineering", "subtopic": "2/E Emergency Actions", "tid": "KOL-2018-03-3962", "tray": "new", "candidates": [ { "answer_id": "MOB-MKR-005", "score": 0.6449918150901794, "sibling_score": 0.6449918150901794, "answer_score": 0.4309587389230728, "sibling_qid": "MUM-2026-02-0795-Q007", "sibling_text": "mob marker solas regulations", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What is the SOLAS requirement and regulation for the MOB marker?", "cross_family": true }, { "answer_id": "MOB-MKR-001", "score": 0.6224274635314941, "sibling_score": 0.6224274635314941, "answer_score": 0.4338147670030594, "sibling_qid": "MUM-2025-10-0487-Q002", "sibling_text": "use of mob marker", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What is the MOB marker, what is it for, and what does it consist of? Give the full details.", "cross_family": true }, { "answer_id": "MOB-MKR-002", "score": 0.4565870463848114, "sibling_score": null, "answer_score": 0.4565870463848114, "sibling_qid": "", "sibling_text": "where is the mob marker stowed what is its exact location and what is the plate it rests on both bridge wings one each side equal distribution both sides is solas iii 7 1 3 quick release from the navigation bridge is the statutory requirement not the wing as such", "sibling_family": "", "via": "answer_title", "answer_title": "Where is the MOB marker stowed, what is its exact location, and what is the plate it rests on?", "cross_family": false } ] }, { "qid": "KOL-2018-03-3962-Q010", "text": "As 2nd enng how to order spares and stores. What to mention while ordering bilge pump suction gauge", "family": "Surveys - Statutory", "subtopic": "Planned Maintenance / PMS", "tid": "KOL-2018-03-3962", "tray": "new", "candidates": [ { "answer_id": "PCD-P04-01", "score": 0.6334595680236816, "sibling_score": 0.6334595680236816, "answer_score": 0.4738308250904083, "sibling_qid": "MUM-2025-12-0992-Q009", "sibling_text": "bilge pump type no of suction valve", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "01. Bilge pump — type, why not centrifugal, and the suction valve chest", "cross_family": true }, { "answer_id": "DUS-P1-06", "score": 0.6308835744857788, "sibling_score": 0.6308835744857788, "answer_score": null, "sibling_qid": "KOL-2020-11-3358-Q004", "sibling_text": "while going for dry dock how will you order spares as a 2e", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Ordering spares and important consumables ahead of drydock", "cross_family": true }, { "answer_id": "PSC-RO-P02-006", "score": 0.6084234118461609, "sibling_score": 0.6084234118461609, "answer_score": null, "sibling_qid": "KOL-2017-07-0102-Q001", "sibling_text": "psc inspection of lifeboat bilge pump", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What does a PSC inspection check on board?", "cross_family": false } ] }, { "qid": "KOL-2018-04-0166-Q001", "text": "type of ship(LNG) ,tank types,construction,insulation,advantage of membrane tanks", "family": "Cargo Ops - Gas Carriers", "subtopic": "Cargo Tank Construction", "tid": "KOL-2018-04-0166", "tray": "review", "candidates": [ { "answer_id": "GC-TANK-005", "score": 0.7766911387443542, "sibling_score": 0.7766911387443542, "answer_score": 0.6135977625846862, "sibling_qid": "KOC-2021-07-0015-Q002", "sibling_text": "lng tank construction type material insulation fire fighting medium moss type tank advantages", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "LNG Moss-type cargo tank: construction and advantages", "cross_family": false }, { "answer_id": "GC-TANK-001", "score": 0.7116648554801941, "sibling_score": 0.7116648554801941, "answer_score": 0.5980180919170379, "sibling_qid": "MUM-2025-09-1196-Q014", "sibling_text": "type of tanks for lng", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Main cargo containment and independent tank types on LPG and LNG carriers", "cross_family": false }, { "answer_id": "IGC-IGF-007", "score": 0.7049829959869385, "sibling_score": 0.7049829959869385, "answer_score": null, "sibling_qid": "KOL-2024-01-4035-Q003", "sibling_text": "types of lng cargo tanks detail of material of primary n secondary barrier and insulation space", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "IGC cargo tank types, containment, barriers and materials", "cross_family": true } ] }, { "qid": "KOL-2018-04-0166-Q002", "text": "tank safeties and leakage", "family": "Cargo Ops - Gas Carriers", "subtopic": "IGC / Gas Carrier Safety", "tid": "KOL-2018-04-0166", "tray": "review", "candidates": [ { "answer_id": "TNK-SAFE-BF26-002", "score": 0.6509575843811035, "sibling_score": 0.6509575843811035, "answer_score": null, "sibling_qid": "MUM-2022-07-0020-Q011", "sibling_text": "what all safeties in tank", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What safeties are provided on the cargo tanks of an oil, crude or chemical tanker?", "cross_family": true }, { "answer_id": "IGC-GAS-015", "score": 0.6050511002540588, "sibling_score": 0.6050511002540588, "answer_score": 0.4831333339214325, "sibling_qid": "MUM-2023-11-0147-Q002", "sibling_text": "safeties on lpg tanks", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Cargo tank and critical-valve safeties", "cross_family": false }, { "answer_id": "GAS-DET-002", "score": 0.5982386469841003, "sibling_score": 0.5982386469841003, "answer_score": null, "sibling_qid": "MUM-2025-09-1196-Q006", "sibling_text": "what are safeties if gas leak in the engine room", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Detecting a leak: inter-barrier / secondary-barrier spaces and shipboard safeties", "cross_family": false } ] }, { "qid": "KOL-2018-04-0170-Q002", "text": "Materials used for ship construction, latest technology used for ship building.", "family": "", "subtopic": "Scantlings", "tid": "KOL-2018-04-0170", "tray": "review", "candidates": [ { "answer_id": "STEEL-GR-001", "score": 0.7715254426002502, "sibling_score": 0.7715254426002502, "answer_score": 0.49410288929939267, "sibling_qid": "KOL-2024-11-0880-Q002", "sibling_text": "modern ship building materials", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Materials and steel grades for ship and hull construction", "cross_family": false }, { "answer_id": "MATPROP-A-007", "score": 0.6872626543045044, "sibling_score": 0.6872626543045044, "answer_score": 0.49585733115673064, "sibling_qid": "KOC-2021-07-0016-Q008", "sibling_text": "materials used for ship construction", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Materials for ship and engine components", "cross_family": false }, { "answer_id": "ICAC-299-007", "score": 0.5040483236312866, "sibling_score": null, "answer_score": 0.5040483236312866, "sibling_qid": "", "sibling_text": "tube and bursting disc material and construction tubes corrosion resistant copper alloy admiralty or aluminium brass cupro nickel maker ship specific confirm from manual tubes expanded or fixed into the tube plates", "sibling_family": "", "via": "answer_title", "answer_title": "Tube and bursting-disc material and construction", "cross_family": false } ] }, { "qid": "KOL-2018-04-0170-Q006", "text": "Personal rescued from water, what all treatments given.", "family": "General Marine Engineering", "subtopic": "2/E Emergency Actions", "tid": "KOL-2018-04-0170", "tray": "new", "candidates": [ { "answer_id": "ELEC-SAFE-009", "score": 0.49805349111557007, "sibling_score": 0.49805349111557007, "answer_score": 0.3654146373271942, "sibling_qid": "KOL-2025-08-2821-Q002", "sibling_text": "rescue procedure for electrical shock person all safety", "sibling_family": "", "via": "sibling", "answer_title": "Rescue and first aid for an electric-shock casualty", "cross_family": false }, { "answer_id": "CAS-ESTOP-001", "score": 0.49724751710891724, "sibling_score": 0.49724751710891724, "answer_score": null, "sibling_qid": "KOL-2020-11-1561-Q006", "sibling_text": "ingress of water in er what to do as 2e", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Engine-room flooding / rapidly rising bilges — immediate action as 2/E", "cross_family": true }, { "answer_id": "LB-SURV-C-004", "score": 0.4889258146286011, "sibling_score": 0.4889258146286011, "answer_score": null, "sibling_qid": "KOC-2021-07-0005-Q006", "sibling_text": "freefall lifeboat routines", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Free-fall lifeboat — maintenance, operational test and simulated / free-fall launch", "cross_family": true } ] }, { "qid": "KOL-2018-04-0171-Q003", "text": "In Life Jacket there is a stamp mark and a weight is printed on it. How much is the weight and what it is indicating.", "family": "SOLAS - LSA & Lifeboats", "subtopic": "LSA Code", "tid": "KOL-2018-04-0171", "tray": "review", "candidates": [ { "answer_id": "LRHR-B-005", "score": 0.6528251767158508, "sibling_score": 0.6528251767158508, "answer_score": 0.4910494744777679, "sibling_qid": "KOC-2026-09-2199-Q001", "sibling_text": "markings on life raft container", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What markings are on the liferaft container, and what is marked on the raft itself?", "cross_family": false }, { "answer_id": "LBT-TEST-B-003", "score": 0.6501505374908447, "sibling_score": 0.6501505374908447, "answer_score": null, "sibling_qid": "KOC-2024-03-0327-Q007", "sibling_text": "tests carried out on lifeboats as per solas not accepting the notes answer he wants to hear equivalent weight of 1 5 1 1 times the brake holding capacity of davit never say water bags inside the lifeboat or weight is added by boarding persons etc", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Winch/davit brake test — static vs dynamic, holding capacity, slippage", "cross_family": false }, { "answer_id": "MOB-MKR-006", "score": 0.617186963558197, "sibling_score": 0.617186963558197, "answer_score": null, "sibling_qid": "KOL-2019-04-0280-Q002", "sibling_text": "types of lifebuoys speciality of mob lifebuoys all regulations weight etc", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What is the difference between the MOB lifebuoy and a normal lifebuoy, and what is special about it?", "cross_family": false } ] }, { "qid": "KOL-2018-04-0171-Q005", "text": "ISM Elements", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOL-2018-04-0171", "tray": "review", "candidates": [ { "answer_id": "ISM-ELEM-003", "score": 0.7286629676818848, "sibling_score": 0.7286629676818848, "answer_score": 0.42241173088550565, "sibling_qid": "KOC-2026-02-0818-Q006", "sibling_text": "ism elements", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": false }, { "answer_id": "ISM-ELEM-002", "score": 0.6282928586006165, "sibling_score": 0.6282928586006165, "answer_score": null, "sibling_qid": "KOC-2026-02-0832-Q008", "sibling_text": "ism code explain all elements", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the ISM Code?", "cross_family": false }, { "answer_id": "ISPS-OV-001", "score": 0.6156479716300964, "sibling_score": 0.6156479716300964, "answer_score": null, "sibling_qid": "KOL-2024-11-0890-Q006", "sibling_text": "isps elements", "sibling_family": "ISPS", "via": "sibling", "answer_title": "ISPS Code: what it is, structure and key elements", "cross_family": true } ] }, { "qid": "KOL-2018-04-1363-Q002", "text": "bumping clearance is 0.9 in compressor. After work when you start it is still hitting the head .. Why ?", "family": "Air Compressor", "subtopic": "Reciprocating Compressor", "tid": "KOL-2018-04-1363", "tray": "review", "candidates": [ { "answer_id": "MAC-353-008", "score": 0.7236757874488831, "sibling_score": 0.7236757874488831, "answer_score": 0.49002423882484436, "sibling_qid": "CHE-2026-04-0506-Q001S4", "sibling_text": "air compressor bumping clearance said lead ball method not accepting it", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Taking bumping clearance without opening the cylinder (lead-ball method)", "cross_family": false }, { "answer_id": "AC-VE-001", "score": 0.6793934106826782, "sibling_score": 0.6793934106826782, "answer_score": null, "sibling_qid": "KOL-2023-02-1725-Q007", "sibling_text": "volumetric efficiency of compressor gone done bumping clearance adjustment", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Volumetric efficiency: define it, and if it drops how do you improve it (with bumping clearance)?", "cross_family": false }, { "answer_id": "MAC-598-003", "score": 0.6783427000045776, "sibling_score": 0.6783427000045776, "answer_score": null, "sibling_qid": "MUM-2022-10-2712-Q005", "sibling_text": "compressor efficiency drop reasons for it how you take bumping clearance in it", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "The compressor is not filling the bottle, or is taking longer than usual, or running continuously on low amps — checks and actions as 2/E", "cross_family": false } ] }, { "qid": "KOL-2018-04-1367-Q009", "text": "8 reffer lo in system as 2 eng action", "family": "Refrigeration & AC", "subtopic": "Refrigeration Lubricating Oil / Flock Point / Oil Charging", "tid": "KOL-2018-04-1367", "tray": "new", "candidates": [ { "answer_id": "REFR-FLT-003", "score": 0.5768440961837769, "sibling_score": 0.5768440961837769, "answer_score": null, "sibling_qid": "KOL-2020-02-3326-Q004", "sibling_text": "in ref sysytm all ref has leaked out actn as 2 e", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Refrigerant leakage or loss: detect, confirm, respond, and the record-keeping", "cross_family": false }, { "answer_id": "LO-PR-ALM-001", "score": 0.4971083998680115, "sibling_score": 0.4971083998680115, "answer_score": null, "sibling_qid": "MUM-2023-11-2211-Q001", "sibling_text": "actions as 2e when lo lp alarm main engine", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main engine low lubricating-oil pressure — alarm, slowdown or trip: your actions as 2/E, and is the alarm true or false?", "cross_family": true }, { "answer_id": "STS-P02-006", "score": 0.48651888966560364, "sibling_score": 0.48651888966560364, "answer_score": null, "sibling_qid": "MUM-2025-05-2301-Q004", "sibling_text": "action as 2e", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "STS-P02-06 - Stern tube seals, integrity test, sleeve wasting and afloat repair", "cross_family": true } ] }, { "qid": "KOL-2018-04-1370-Q002", "text": "indos number types of engine worked.", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOL-2018-04-1370", "tray": "new", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.6437692046165466, "sibling_score": 0.6437692046165466, "answer_score": null, "sibling_qid": "KOL-2026-03-2048-Q001", "sibling_text": "type of engine done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "MCC-MEB-P01-001", "score": 0.6384403109550476, "sibling_score": 0.6384403109550476, "answer_score": null, "sibling_qid": "MUM-2026-09-3997-Q002", "sibling_text": "type of engine worked me mcc me b and rta", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "MC-C (\"Compact\") engine — design and the main constructional differences from MC", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.6258493065834045, "sibling_score": 0.6258493065834045, "answer_score": null, "sibling_qid": "CHE-2026-04-0506-Q003", "sibling_text": "types of engine you worked specifications of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false } ] }, { "qid": "KOL-2018-04-2186-Q002", "text": "Motor safeties", "family": "Electrical - Protection & Relays", "subtopic": "Protection / Relays", "tid": "KOL-2018-04-2186", "tray": "review", "candidates": [ { "answer_id": "IMSP-007", "score": 0.744543194770813, "sibling_score": 0.744543194770813, "answer_score": null, "sibling_qid": "KOL-2024-04-2706-Q008", "sibling_text": "safeties provided in motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What safeties and protections are provided in an induction motor and its starter — overload, short-circuit, thermal? What about a motor on deck, and large three-phase motors?", "cross_family": true }, { "answer_id": "ILK-318-005", "score": 0.690061092376709, "sibling_score": 0.690061092376709, "answer_score": null, "sibling_qid": "KOC-2024-05-2048-Q010", "sibling_text": "safeties in me engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "5. Main-engine trips and shutdowns linked with interlocks", "cross_family": true }, { "answer_id": "SGM-ELEC-001", "score": 0.6765695810317993, "sibling_score": 0.6765695810317993, "answer_score": 0.5175575107336045, "sibling_qid": "MUM-2022-10-1363-Q001", "sibling_text": "safeties in s g motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What are the safeties, alarms and trips on the steering gear motor as per SOLAS — and how do you activate the safematic?", "cross_family": true } ] }, { "qid": "KOL-2018-04-2186-Q007", "text": "Some more question cant remember", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOL-2018-04-2186", "tray": "review", "candidates": [ { "answer_id": "BWMS-C-002", "score": 0.6802018880844116, "sibling_score": 0.6802018880844116, "answer_score": null, "sibling_qid": "KOL-2022-05-0641-Q005", "sibling_text": "bwts one more question but forgot", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Types of BWTS and their working principles", "cross_family": true }, { "answer_id": "CLVR-WEAR-001", "score": 0.6684039831161499, "sibling_score": 0.6684039831161499, "answer_score": null, "sibling_qid": "KOC-2026-03-1110-Q016", "sibling_text": "clover leafing some more questions i don t remember", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Cloverleaf wear — what it is, where, why, and how to reduce or rectify it", "cross_family": true }, { "answer_id": "WMAT-170-010", "score": 0.6494016647338867, "sibling_score": 0.6494016647338867, "answer_score": null, "sibling_qid": "CHE-2026-05-0597-Q012", "sibling_text": "few more questions", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Bearing types, material selection and properties: where each is used", "cross_family": true } ] }, { "qid": "KOL-2018-04-2187-Q004", "text": "Steering motor safety.", "family": "Electrical - Motors & Starters", "subtopic": "Single Phasing", "tid": "KOL-2018-04-2187", "tray": "review", "candidates": [ { "answer_id": "SGM-ELEC-001", "score": 0.824295699596405, "sibling_score": 0.824295699596405, "answer_score": 0.5448229223489761, "sibling_qid": "MUM-2022-08-1344-Q003", "sibling_text": "steering motor safeties", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What are the safeties, alarms and trips on the steering gear motor as per SOLAS — and how do you activate the safematic?", "cross_family": false }, { "answer_id": "SGM-ELEC-002", "score": 0.8182482123374939, "sibling_score": 0.8182482123374939, "answer_score": null, "sibling_qid": "MUM-2026-05-3190-Q008", "sibling_text": "steering gear motor safeties", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What type of motor is the steering gear motor, how does it differ from other engine-room motors, and how do you order one?", "cross_family": false }, { "answer_id": "SG-055-B-002", "score": 0.8172309994697571, "sibling_score": 0.8172309994697571, "answer_score": 0.5630593597888947, "sibling_qid": "KOC-2026-04-1748-Q002", "sibling_text": "steering gear motor safeties", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Steering-gear alarms, trips and electrical / hydraulic safeties", "cross_family": false } ] }, { "qid": "KOL-2018-04-2189-Q004", "text": "what is retaining circuit in a DOL system. Draw it. Use of it.", "family": "Electrical - Motors & Starters", "subtopic": "DOL Starter", "tid": "KOL-2018-04-2189", "tray": "new", "candidates": [ { "answer_id": "STR-DEC-A-001", "score": 0.49143242835998535, "sibling_score": 0.49143242835998535, "answer_score": null, "sibling_qid": "KOC-2024-11-1430-Q001", "sibling_text": "dol starter diagram current value", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "TG-MOTOR-005", "score": 0.451041579246521, "sibling_score": 0.451041579246521, "answer_score": 0.3090536296367645, "sibling_qid": "KOC-2025-01-1479-Q001", "sibling_text": "turning gear circuit diagram", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw the turning gear circuit diagram and explain the starter.", "cross_family": false }, { "answer_id": "WIND-CRN-P01-002", "score": 0.44073063135147095, "sibling_score": 0.44073063135147095, "answer_score": null, "sibling_qid": "KOC-2025-11-1639-Q002", "sibling_text": "draw er crane circuit", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Crane motor power & control circuit (draw and explain)", "cross_family": false } ] }, { "qid": "KOL-2018-04-2190-Q003", "text": "Main switchboard construction drawing ACB maintenance", "family": "", "subtopic": "Circuit Breakers (ACB / VCB / SF6)", "tid": "KOL-2018-04-2190", "tray": "new", "candidates": [ { "answer_id": "CB033-C-001", "score": 0.6183651685714722, "sibling_score": 0.6183651685714722, "answer_score": 0.4828657269477844, "sibling_qid": "KOL-2026-09-4309-Q008", "sibling_text": "maintenance in electrical switchboard system", "sibling_family": "Electrical - Switchgear & Protection", "via": "sibling", "answer_title": "How do you carry out maintenance and testing on an ACB / main circuit breaker?", "cross_family": false }, { "answer_id": "ELEC-SURV-007", "score": 0.5829209089279175, "sibling_score": 0.5829209089279175, "answer_score": 0.48543018400669097, "sibling_qid": "KOL-2024-12-2753-Q002", "sibling_text": "main switch board survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Main switchboard survey & ACB testing", "cross_family": false }, { "answer_id": "MSB-ESB-E-001", "score": 0.5696853399276733, "sibling_score": 0.5696853399276733, "answer_score": null, "sibling_qid": "CHE-2026-05-0567-Q007", "sibling_text": "main switch board protection", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What safeties, protection trips, relays and alarms are provided on the MSB / ESB, and how are they tested?", "cross_family": false } ] }, { "qid": "KOL-2018-04-2191-Q003", "text": "Preparation of HV circuit breaker overhaul. What is PTW.", "family": "Risk & Safety Management", "subtopic": "Permit to Work / Enclosed Space", "tid": "KOL-2018-04-2191", "tray": "new", "candidates": [ { "answer_id": "CBKR-H-001", "score": 0.5602039098739624, "sibling_score": 0.5602039098739624, "answer_score": null, "sibling_qid": "KOL-2018-10-2229-Q002", "sibling_text": "high voltage ckt breaker ohauling n precautions", "sibling_family": "", "via": "sibling", "answer_title": "How do VCB and SF6 breakers work in a high-voltage system, and why are they used instead of an ACB?", "cross_family": false }, { "answer_id": "CBR-ARC-G-002", "score": 0.5595493316650391, "sibling_score": 0.5595493316650391, "answer_score": null, "sibling_qid": "KOL-2019-10-2332-Q004", "sibling_text": "hv system ckt breaker vacuum type ckt breaker diagram and how to overhaul", "sibling_family": "", "via": "sibling", "answer_title": "ACB construction, contacts, arc chutes, auxiliaries and VCB parts", "cross_family": false }, { "answer_id": "MAST-PVA-003", "score": 0.5313438773155212, "sibling_score": 0.5313438773155212, "answer_score": null, "sibling_qid": "KOC-2022-02-0060-Q004", "sibling_text": "draw pv breaker explain working", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "P/V breaker — construction and working principle", "cross_family": true } ] }, { "qid": "KOL-2018-04-2192-Q004", "text": "Emergency steering gear supply arrangement", "family": "Steering Gear & Hydraulics", "subtopic": "Steering Gear System", "tid": "KOL-2018-04-2192", "tray": "review", "candidates": [ { "answer_id": "SG-055-B-001", "score": 0.7758259773254395, "sibling_score": 0.7758259773254395, "answer_score": 0.5187954843044281, "sibling_qid": "MUM-2026-05-3272-Q002", "sibling_text": "emergency steering gear requirement", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Emergency steering operation and the deadman handle", "cross_family": false }, { "answer_id": "RVSG-213-004", "score": 0.7498974204063416, "sibling_score": 0.7498974204063416, "answer_score": 0.5345796346664429, "sibling_qid": "KOC-2026-09-2180-Q008", "sibling_text": "emergency steering of vane type steering gear", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Redundancy, emergency steering, local operation & bypass", "cross_family": false }, { "answer_id": "STEER-055-A-001", "score": 0.7197073101997375, "sibling_score": 0.7197073101997375, "answer_score": null, "sibling_qid": "KOC-2025-09-1578-Q006", "sibling_text": "essential machinery onboard steering gear", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Steering gear — construction, types and working", "cross_family": false } ] }, { "qid": "KOL-2018-04-3133-Q001", "text": "Bumping clearence is 0.9mm but piston is hitting the Head how will you adjust.", "family": "Air Compressor", "subtopic": "Reciprocating Compressor", "tid": "KOL-2018-04-3133", "tray": "review", "candidates": [ { "answer_id": "RUN-CLR-002", "score": 0.691863477230072, "sibling_score": 0.691863477230072, "answer_score": 0.5369622588157653, "sibling_qid": "MUM-2026-06-3501-Q002", "sibling_text": "bumping clearance how to adjust", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Bumping clearance — what it is, why it matters, effects, and how it is adjusted", "cross_family": false }, { "answer_id": "MAC-353-008", "score": 0.6565294861793518, "sibling_score": 0.6565294861793518, "answer_score": 0.5339144170284271, "sibling_qid": "KOL-2026-09-4310-Q004", "sibling_text": "how to adjust the bumping clearance in air compressor", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Taking bumping clearance without opening the cylinder (lead-ball method)", "cross_family": false }, { "answer_id": "AC-VE-001", "score": 0.6394038200378418, "sibling_score": 0.6394038200378418, "answer_score": null, "sibling_qid": "KOL-2024-07-1947-Q010", "sibling_text": "define volumetric efficiency if drop what you do 3 methods to adjust bumping clearance", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Volumetric efficiency: define it, and if it drops how do you improve it (with bumping clearance)?", "cross_family": false } ] }, { "qid": "KOL-2018-04-3133-Q005", "text": "There is Globe v/v how will you make it nonreturn v/v", "family": "General Marine Engineering", "subtopic": "Glove Valve", "tid": "KOL-2018-04-3133", "tray": "new", "candidates": [ { "answer_id": "VTA-TC-001", "score": 0.3673318326473236, "sibling_score": 0.3673318326473236, "answer_score": null, "sibling_qid": "KOL-2026-04-2057-Q002", "sibling_text": "vgt explain", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "What VTA / VGT is and how it works", "cross_family": true }, { "answer_id": "NPDES-330-001", "score": 0.35226869583129883, "sibling_score": 0.35226869583129883, "answer_score": null, "sibling_qid": "KOC-2023-11-0242-Q002", "sibling_text": "vgp explain in detail", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Explain VGP / General Vessel Permit / NPDES and its purpose under US vessel-discharge compliance", "cross_family": true }, { "answer_id": "SDNR-SDR-004", "score": 0.3429398834705353, "sibling_score": 0.3429398834705353, "answer_score": 0.25741918832063676, "sibling_qid": "KOL-2024-09-3711-Q003", "sibling_text": "spring loaded non return globe valve where use in engine room", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Spring-loaded spindleless non-return globe valve -- working principle and engine-room use", "cross_family": false } ] }, { "qid": "KOL-2018-04-3134-Q001", "text": "Asked no. Of attempt what king of engine worked in,", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOL-2018-04-3134", "tray": "new", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.6309508681297302, "sibling_score": 0.6309508681297302, "answer_score": null, "sibling_qid": "CHE-2026-01-0240-Q018", "sibling_text": "which type of engine worked", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "MCC-MEB-P01-001", "score": 0.5995252728462219, "sibling_score": 0.5995252728462219, "answer_score": null, "sibling_qid": "MUM-2026-09-3997-Q002", "sibling_text": "type of engine worked me mcc me b and rta", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "MC-C (\"Compact\") engine — design and the main constructional differences from MC", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.557780921459198, "sibling_score": 0.557780921459198, "answer_score": null, "sibling_qid": "CHE-2026-04-0506-Q003", "sibling_text": "types of engine you worked specifications of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false } ] }, { "qid": "KOL-2018-04-3135-Q001", "text": "What action for subzero temperature . I told lifeboat, sea suction chest, dbtanks.", "family": "General Marine Engineering", "subtopic": "Cold Weather / Subzero Precautions", "tid": "KOL-2018-04-3135", "tray": "new", "candidates": [ { "answer_id": "LB-REQ-B-004", "score": 0.5752764940261841, "sibling_score": 0.5752764940261841, "answer_score": null, "sibling_qid": "MUM-2026-06-3592-Q002", "sibling_text": "lifeboat battery specification for cold weather specifically", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Ordering lifeboat batteries — type, rating & CCA", "cross_family": true }, { "answer_id": "LB-SURV-C-008", "score": 0.566402018070221, "sibling_score": 0.566402018070221, "answer_score": 0.43489634096622465, "sibling_qid": "CHE-2026-05-0590-Q003", "sibling_text": "ship going to cold climate region prepartion for lifeboat engine i said about antifreeze lube and fuel oil property but expect something with design by maker i don t know", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat engine — checks, cold-climate preparation and self-contained air-support system", "cross_family": true }, { "answer_id": "JCW-SYS-003", "score": 0.5656428933143616, "sibling_score": 0.5656428933143616, "answer_score": null, "sibling_qid": "MUM-2026-06-3420-Q007", "sibling_text": "me sea water cooled temp starting to rise your actions", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "ME jacket-water temperature is rising on all units and will not hold setpoint - reasons, your actions as 2/E, and telling which side of the cooler is leaking", "cross_family": true } ] }, { "qid": "KOL-2018-04-3138-Q003", "text": "Tool box meeting . Wat is it..? and why done?", "family": "Risk & Safety Management", "subtopic": "Safety Meeting / Committee", "tid": "KOL-2018-04-3138", "tray": "new", "candidates": [ { "answer_id": "CYL-LINER-P01-002", "score": 0.4011532664299011, "sibling_score": 0.4011532664299011, "answer_score": null, "sibling_qid": "MUM-2022-07-2135-Q007", "sibling_text": "what tool", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Getting true readings: tool, position and temperature", "cross_family": true }, { "answer_id": "PROP-RP-001", "score": 0.39310112595558167, "sibling_score": 0.39310112595558167, "answer_score": null, "sibling_qid": "MUM-2022-10-0054-Q010", "sibling_text": "tools used procedure", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Propeller removal — procedure, tools and sequence", "cross_family": true }, { "answer_id": "DUS-P1-07", "score": 0.39223843812942505, "sibling_score": 0.39223843812942505, "answer_score": 0.2654338702559471, "sibling_qid": "KOL-2026-01-3906-Q004", "sibling_text": "your ce told to arrange very important tools which you can arrange and how", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Ordering tools when the ship is old and the workshop is bare", "cross_family": true } ] }, { "qid": "KOL-2018-04-3142-Q001", "text": "A/E bottom end bearing clearance", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Decarb Checks / Connecting Rod / Bottom End Bearing", "tid": "KOL-2018-04-3142", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-007", "score": 0.8281157612800598, "sibling_score": 0.8281157612800598, "answer_score": 0.5260564386844635, "sibling_qid": "MUM-2026-09-3971-Q013", "sibling_text": "ae bottom end bearing clearance", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE big-end / bottom-end bearing — inspection, bedding, nip and crush", "cross_family": false }, { "answer_id": "BEB-B-002", "score": 0.775062620639801, "sibling_score": 0.775062620639801, "answer_score": 0.5340348452329635, "sibling_qid": "MUM-2026-05-3210-Q001", "sibling_text": "bottom end bearing clearance", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Bottom End Bearing — Clearance Measurement", "cross_family": false }, { "answer_id": "AECR-651-004", "score": 0.7686530947685242, "sibling_score": 0.7686530947685242, "answer_score": 0.5645918428897857, "sibling_qid": "MUM-2026-05-3226-Q001", "sibling_text": "how will you take the bottom end bearing clearance of ae without removing bearing", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "How do you inspect the bottom-end bearing, and how do you take the AE big-end clearance without removing it?", "cross_family": false } ] }, { "qid": "KOL-2018-05-0174-Q005", "text": "Flare,what is one specific reason for providing flare", "family": "SOLAS", "subtopic": "Bulbous Bow", "tid": "KOL-2018-05-0174", "tray": "new", "candidates": [ { "answer_id": "PIPEFAB-012", "score": 0.4630088806152344, "sibling_score": 0.4630088806152344, "answer_score": 0.3100818037986755, "sibling_qid": "CHE-2026-05-0578-Q010", "sibling_text": "purpose of flaring tool", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "What is the purpose of a flaring tool?", "cross_family": true }, { "answer_id": "FLD-601-001", "score": 0.4255903661251068, "sibling_score": 0.4255903661251068, "answer_score": null, "sibling_qid": "MUM-2025-11-0563-Q002", "sibling_text": "why ig required plz say flash point", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Draw and explain the hydrocarbon flammability diagram. What is its purpose and functional requirement, why is the line tapered, and how do you mark a point on it?", "cross_family": true }, { "answer_id": "CYL-LINER-P04-005", "score": 0.41805487871170044, "sibling_score": 0.41805487871170044, "answer_score": null, "sibling_qid": "MUM-2021-09-1010-Q010", "sibling_text": "purpose of flame ring", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Anti-polishing / flame / fire ring — location, purpose, material", "cross_family": true } ] }, { "qid": "KOL-2018-05-0174-Q006", "text": "How to test engine room ventilation system", "family": "Auxiliary Equipment", "subtopic": "Vent Heads / Air Vents", "tid": "KOL-2018-05-0174", "tray": "review", "candidates": [ { "answer_id": "FIRE-P03-05", "score": 0.6864163875579834, "sibling_score": 0.6864163875579834, "answer_score": null, "sibling_qid": "MUM-2023-12-0152-Q002", "sibling_text": "how to test engine room vent flaps regulation regarding same", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fire dampers, smoke dampers and engine-room ventilation flaps — definitions, closures and testing", "cross_family": true }, { "answer_id": "VENT-HD-005", "score": 0.6248455047607422, "sibling_score": 0.6248455047607422, "answer_score": null, "sibling_qid": "MUM-2026-02-0734-Q004", "sibling_text": "inspection in air vents", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Inspections and maintenance on tank vent heads", "cross_family": false }, { "answer_id": "ERC-345-004", "score": 0.6181023716926575, "sibling_score": 0.6181023716926575, "answer_score": null, "sibling_qid": "MUM-2026-06-3608-Q007", "sibling_text": "engine room crane swl test", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Load test, SWL and survey", "cross_family": false } ] }, { "qid": "KOL-2018-05-0175-Q002", "text": "Sub division, types of floor.", "family": "", "subtopic": "Floodable Length / Permeability", "tid": "KOL-2018-05-0175", "tray": "new", "candidates": [ { "answer_id": "FLR-WFB-P01-001", "score": 0.6305772066116333, "sibling_score": 0.6305772066116333, "answer_score": 0.4340591192245483, "sibling_qid": "CHE-2025-08-0014-Q002", "sibling_text": "floor types in detail", "sibling_family": "", "via": "sibling", "answer_title": "Floors — what they are, the types, and where they are fitted", "cross_family": false }, { "answer_id": "FLR-WFB-P01-002", "score": 0.5571965575218201, "sibling_score": 0.5571965575218201, "answer_score": null, "sibling_qid": "KOC-2021-07-0014-Q012", "sibling_text": "types of floor what s solid floor where it is what s t use", "sibling_family": "", "via": "sibling", "answer_title": "The solid floor — what it is, where it is fitted, its components", "cross_family": false }, { "answer_id": "FLP-142-P02-004", "score": 0.5571749806404114, "sibling_score": 0.5571749806404114, "answer_score": 0.4191203981637955, "sibling_qid": "KOL-2026-03-1201-Q003", "sibling_text": "factor of sub divisions", "sibling_family": "", "via": "sibling", "answer_title": "Factor of subdivision — what it is", "cross_family": false } ] }, { "qid": "KOL-2018-05-0175-Q003", "text": "Emergency preparedness? Regulations!", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOL-2018-05-0175", "tray": "review", "candidates": [ { "answer_id": "ISM-ELEM-005", "score": 0.7031580805778503, "sibling_score": 0.7031580805778503, "answer_score": 0.5116069287061691, "sibling_qid": "KOL-2026-01-1154-Q006", "sibling_text": "emergency preparedness under ism code", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Emergency preparedness (Element 8)", "cross_family": false }, { "answer_id": "ISM-DPA-004", "score": 0.6489517092704773, "sibling_score": 0.6489517092704773, "answer_score": null, "sibling_qid": "CHE-2026-05-0557-Q015", "sibling_text": "masters overriding authority and emergency preparedness internal deciding question", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Master's overriding authority and the DPA relationship (ISM chapters)", "cross_family": false }, { "answer_id": "EDG-P01-001", "score": 0.6415072083473206, "sibling_score": 0.6415072083473206, "answer_score": null, "sibling_qid": "KOC-2023-06-2039-Q006", "sibling_text": "emergency g r regulation", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Emergency source of power — the SOLAS requirements", "cross_family": true } ] }, { "qid": "KOL-2018-05-0175-Q004", "text": "Bulbusbow construction", "family": "", "subtopic": "Bulbous Bow", "tid": "KOL-2018-05-0175", "tray": "new", "candidates": [ { "answer_id": "PPS-230-006", "score": 0.41412830352783203, "sibling_score": 0.41412830352783203, "answer_score": 0.296938157081604, "sibling_qid": "KOC-2023-01-0126-Q004", "sibling_text": "forward arrangement of the ship bulbos bow nd als the panting beams", "sibling_family": "", "via": "sibling", "answer_title": "Fore-end / fore-peak structure: draw and describe", "cross_family": false }, { "answer_id": "BSBH-420-001", "score": 0.402371883392334, "sibling_score": 0.402371883392334, "answer_score": null, "sibling_qid": "KOC-2023-10-0230-Q002", "sibling_text": "forward end construction", "sibling_family": "", "via": "sibling", "answer_title": "What is a breast hook, where is it fitted, and what does it connect at the fore end?", "cross_family": false }, { "answer_id": "FWFB-P02-005", "score": 0.3909090653061867, "sibling_score": 0.3788149356842041, "answer_score": 0.3909090653061867, "sibling_qid": "KOL-2016-05-0002-Q002", "sibling_text": "bulb angle what are the places draw", "sibling_family": "SOLAS", "via": "answer_title", "answer_title": "Other members: breast hook, bulb angle, cross tie, margin / coffin / shoe plates", "cross_family": false } ] }, { "qid": "KOL-2018-05-0176-Q001", "text": "What is Solid Ballast", "family": "", "subtopic": "GM / KM / KB / Metacentric", "tid": "KOL-2018-05-0176", "tray": "new", "candidates": [ { "answer_id": "BWM-D1D2-P03-001", "score": 0.4917284846305847, "sibling_score": 0.4917284846305847, "answer_score": null, "sibling_qid": "KOC-2022-09-0099-Q007", "sibling_text": "ballast d2 standard", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Regulation D-2 — ballast water performance / discharge standardHigh", "cross_family": false }, { "answer_id": "COT-14", "score": 0.47270941734313965, "sibling_score": 0.47270941734313965, "answer_score": null, "sibling_qid": "KOL-2026-07-4253-Q003", "sibling_text": "segregated ballast and and capacity", "sibling_family": "Ship Construction", "via": "sibling", "answer_title": "SBT applicability, capacity and draught criteria", "cross_family": false }, { "answer_id": "COT-13", "score": 0.4531778395175934, "sibling_score": 0.4531778395175934, "answer_score": 0.31583259254693985, "sibling_qid": "KOL-2023-09-0766-Q002", "sibling_text": "open ballast", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Segregated, clean, dedicated and open ballast", "cross_family": false } ] }, { "qid": "KOL-2018-05-0179-Q002", "text": "markings on lifejacket ? Exact buoyancy? And x questions", "family": "SOLAS - LSA & Lifeboats", "subtopic": "LSA Code", "tid": "KOL-2018-05-0179", "tray": "review", "candidates": [ { "answer_id": "LRHR-B-005", "score": 0.6918208003044128, "sibling_score": 0.6918208003044128, "answer_score": 0.4712417960166931, "sibling_qid": "KOC-2023-01-0137-Q009", "sibling_text": "markings in liferaft", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What markings are on the liferaft container, and what is marked on the raft itself?", "cross_family": false }, { "answer_id": "RES-BUOY-001", "score": 0.62457275390625, "sibling_score": 0.62457275390625, "answer_score": null, "sibling_qid": "KOL-2021-03-0482-Q004", "sibling_text": "reserve bouyancy and x questions", "sibling_family": "", "via": "sibling", "answer_title": "What reserve buoyancy is, and what it tells you", "cross_family": false }, { "answer_id": "LRHR-A-001", "score": 0.6198535561561584, "sibling_score": 0.6198535561561584, "answer_score": null, "sibling_qid": "MUM-2026-09-3882-Q005", "sibling_text": "life buoy regulation", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "SOLAS requirement for liferafts on a cargo ship — number and total capacity", "cross_family": false } ] }, { "qid": "KOL-2018-05-0180-Q001", "text": "Type of vessel? Old or New?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2018-05-0180", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.6646701693534851, "sibling_score": 0.6646701693534851, "answer_score": null, "sibling_qid": "MUM-2026-06-3384-Q001", "sibling_text": "type of vessel", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.6440653204917908, "sibling_score": 0.6440653204917908, "answer_score": null, "sibling_qid": "CHE-2026-02-0481-Q001", "sibling_text": "type of vessels sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.6290484666824341, "sibling_score": 0.6290484666824341, "answer_score": 0.4140068098902702, "sibling_qid": "CHE-2026-02-0109-Q001", "sibling_text": "type of ship explain what type is your vessel explain their type and difference", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "KOL-2018-05-0180-Q005", "text": "Elements of ISM code in details?", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOL-2018-05-0180", "tray": "review", "candidates": [ { "answer_id": "ISM-ELEM-002", "score": 0.7078524827957153, "sibling_score": 0.7078524827957153, "answer_score": null, "sibling_qid": "KOC-2026-02-0832-Q008", "sibling_text": "ism code explain all elements", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the ISM Code?", "cross_family": false }, { "answer_id": "ISM-ELEM-003", "score": 0.6120349764823914, "sibling_score": 0.6120349764823914, "answer_score": 0.4989531010389328, "sibling_qid": "MUM-2020-09-0004-Q002", "sibling_text": "ism code element 10", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": false }, { "answer_id": "ISPS-SL-002", "score": 0.59267258644104, "sibling_score": 0.59267258644104, "answer_score": null, "sibling_qid": "KOL-2022-10-0689-Q046", "sibling_text": "isps code elements in this code describe", "sibling_family": "ISPS", "via": "sibling", "answer_title": "Elements, contents, functional requirements, training and equipment", "cross_family": true } ] }, { "qid": "KOL-2018-05-1374-Q002", "text": "Types of boiler, difference bw smoke tube water tube", "family": "Boilers - Construction & Components", "subtopic": "Composite Boiler", "tid": "KOL-2018-05-1374", "tray": "review", "candidates": [ { "answer_id": "BLR-TUBE-P01-002", "score": 0.8089659810066223, "sibling_score": 0.8089659810066223, "answer_score": 0.5590354263782501, "sibling_qid": "KOL-2020-09-1544-Q003", "sibling_text": "which boiler water tube difference between water tube and smoke tube", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "03. Types, functions and arrangement of boiler tubes", "cross_family": false }, { "answer_id": "BLR-TUBE-P01-001", "score": 0.7401759028434753, "sibling_score": 0.7401759028434753, "answer_score": null, "sibling_qid": "KOC-2025-07-1044-Q003", "sibling_text": "boiler how smoke tube is connected to water tube", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "01. Attaching, fitting and supporting boiler tubes", "cross_family": false }, { "answer_id": "BFS-257-008", "score": 0.6797794699668884, "sibling_score": 0.6797794699668884, "answer_score": null, "sibling_qid": "MUM-2024-09-2770-Q007", "sibling_text": "bolier type water tube explain soot blow method", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler / EGB soot-blowing — procedure, precautions, sequence", "cross_family": true } ] }, { "qid": "KOL-2018-05-1376-Q005", "text": "Function of vacuum condenser.\tElectrical", "family": "Heat Exchangers & Coolers", "subtopic": "Vacuum Distillation", "tid": "KOL-2018-05-1376", "tray": "new", "candidates": [ { "answer_id": "VAC-COND-001", "score": 0.6248888969421387, "sibling_score": 0.6248888969421387, "answer_score": 0.5145898193120956, "sibling_qid": "MUM-2026-02-1276-Q005", "sibling_text": "significance of vacuum condenser", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Purpose, working and thermodynamic principle of the vacuum condenser", "cross_family": true }, { "answer_id": "VAC-COND-002", "score": 0.6149097681045532, "sibling_score": 0.6149097681045532, "answer_score": null, "sibling_qid": "MUM-2026-07-3769-Q011", "sibling_text": "vacuum condenser loosed suction reason", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Low vacuum, suction loss and failure to build vacuum — the reasons", "cross_family": false }, { "answer_id": "CBKR-H-001", "score": 0.6036633253097534, "sibling_score": 0.6036633253097534, "answer_score": null, "sibling_qid": "KOC-2024-12-1449-Q003", "sibling_text": "vaccum circuit breaker working", "sibling_family": "", "via": "sibling", "answer_title": "How do VCB and SF6 breakers work in a high-voltage system, and why are they used instead of an ACB?", "cross_family": false } ] }, { "qid": "KOL-2018-05-1377-Q001", "text": "what type of engine? Told Mitsubishi. Oros piston advantages", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOL-2018-05-1377", "tray": "new", "candidates": [ { "answer_id": "PIST-CSI-A-001", "score": 0.6278989315032959, "sibling_score": 0.6278989315032959, "answer_score": 0.4443690299987793, "sibling_qid": "CHE-2026-04-0263-Q012", "sibling_text": "oros piston advantages", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Oros combustion chamber, high top land and modern 2-stroke piston development", "cross_family": true }, { "answer_id": "PIST-CSI-B-001", "score": 0.6152069568634033, "sibling_score": 0.6152069568634033, "answer_score": null, "sibling_qid": "KOL-2021-10-1627-Q003", "sibling_text": "orsos pistion advantages", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Main-engine piston — construction and the checks expected", "cross_family": true }, { "answer_id": "PIST-CSI-A-002", "score": 0.54617840051651, "sibling_score": 0.54617840051651, "answer_score": null, "sibling_qid": "KOL-2019-08-1477-Q001", "sibling_text": "oros piston high topland draw and explqin advantages", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "2-stroke piston: parts, cooling arrangement and operating stresses", "cross_family": true } ] }, { "qid": "KOL-2018-05-1377-Q004", "text": "how is the safety valve attached to the stem? How is the pin surface mating ? He gave me 4 options 1) tight with disc loose with stem", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2018-05-1377", "tray": "new", "candidates": [ { "answer_id": "MR-DS-PV-B-006", "score": 0.5978651642799377, "sibling_score": 0.5978651642799377, "answer_score": null, "sibling_qid": "KOC-2026-09-2180-Q009", "sibling_text": "full bore safety valve construction", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "6. Deck isolating valve, deck relief/safety devices, and cargo-tank pressure", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.5887265801429749, "sibling_score": 0.5887265801429749, "answer_score": null, "sibling_qid": "KOC-2026-05-2142-Q007", "sibling_text": "full bore safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.5810028910636902, "sibling_score": 0.5810028910636902, "answer_score": null, "sibling_qid": "MUM-2026-05-2994-Q003", "sibling_text": "how do you set the safety valve in front of surveyor", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false } ] }, { "qid": "KOL-2018-05-1377-Q005", "text": "vice versa in 1 3) tight with both 4) loose with both.", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2018-05-1377", "tray": "new", "candidates": [ { "answer_id": "FCAM-LEAD-P04-003", "score": 0.450368195772171, "sibling_score": 0.450368195772171, "answer_score": null, "sibling_qid": "MUM-2026-03-2942-Q007", "sibling_text": "4 what if less or high", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Advanced, retarded or disturbed fuel timing effects", "cross_family": true }, { "answer_id": "CHAIN-TENS-C-001", "score": 0.4282474219799042, "sibling_score": 0.4282474219799042, "answer_score": null, "sibling_qid": "MUM-2025-09-1188-Q004", "sibling_text": "3 chain slackness check", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main-engine chain drive — how you know it is slack, and how you check and tighten it", "cross_family": true }, { "answer_id": "ETP-344-P03-001", "score": 0.4081869125366211, "sibling_score": 0.4081869125366211, "answer_score": null, "sibling_qid": "MUM-2025-12-2899-Q004", "sibling_text": "difference in 4s and 2s", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": true } ] }, { "qid": "KOL-2018-05-2194-Q001", "text": "phase/significance of phase", "family": "Electrical - Generator & Alternator", "subtopic": "Frequency", "tid": "KOL-2018-05-2194", "tray": "new", "candidates": [ { "answer_id": "SDC-003", "score": 0.6355652809143066, "sibling_score": 0.6355652809143066, "answer_score": null, "sibling_qid": "KOC-2023-11-1301-Q010", "sibling_text": "what is phase", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Line and phase relationships — and the 10-amp trap", "cross_family": false }, { "answer_id": "SYNC-B-002", "score": 0.6073304414749146, "sibling_score": 0.6073304414749146, "answer_score": 0.37017023414373396, "sibling_qid": "KOL-2018-04-2188-Q002", "sibling_text": "what is in phase", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Phase angle and the in-phase (12 o’clock) condition", "cross_family": false }, { "answer_id": "SYNC-D-003", "score": 0.5899257063865662, "sibling_score": 0.5899257063865662, "answer_score": null, "sibling_qid": "MUM-2022-07-1330-Q008", "sibling_text": "use of phase indicator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Correct paralleling — checks, the synchroscope & phase angle, voltage trim, interlocks", "cross_family": false } ] }, { "qid": "KOL-2018-05-3146-Q001", "text": "Surface preparation and paint used in e/r", "family": "Drydock & Underwater Surveys", "subtopic": "Paint Scheme", "tid": "KOL-2018-05-3146", "tray": "new", "candidates": [ { "answer_id": "HULL-PAINT-001", "score": 0.6243050694465637, "sibling_score": 0.6243050694465637, "answer_score": 0.39777724742889403, "sibling_qid": "CHE-2023-04-0390-Q001", "sibling_text": "hull surface preparation before painting", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Preparing the hull surface before painting in dry dock — cleanliness standard and methods", "cross_family": false }, { "answer_id": "HULL-PAINT-004", "score": 0.5454463958740234, "sibling_score": 0.5454463958740234, "answer_score": null, "sibling_qid": "MUM-2023-08-2741-Q010", "sibling_text": "paint thickness and tool", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Measuring paint thickness — DFT and WFT, and the gauges used", "cross_family": false }, { "answer_id": "HULL-PAINT-002", "score": 0.5329222083091736, "sibling_score": 0.5329222083091736, "answer_score": 0.35996795892715455, "sibling_qid": "MUM-2023-08-2741-Q009", "sibling_text": "paint material", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Types of hull coating, the paint scheme by section, and why each is used", "cross_family": false } ] }, { "qid": "KOL-2018-05-3148-Q001", "text": "what is the use of bottom pintle", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2018-05-3148", "tray": "new", "candidates": [ { "answer_id": "BOT-PLUG-001", "score": 0.47165030241012573, "sibling_score": 0.47165030241012573, "answer_score": null, "sibling_qid": "MUM-2026-02-0732-Q003", "sibling_text": "bottom plug", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "How do you check the watertight integrity of a DB tank bottom plug in dry dock?", "cross_family": true }, { "answer_id": "BEB-C-002", "score": 0.4495607018470764, "sibling_score": 0.4495607018470764, "answer_score": null, "sibling_qid": "KOL-2021-12-3492-Q002", "sibling_text": "bottom bearing damaged without damaging the pin proceed to port", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bottom end bearing damaged, no spare — action to reach port without damaging the pin", "cross_family": true }, { "answer_id": "TRS-002", "score": 0.4377424716949463, "sibling_score": 0.4377424716949463, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false } ] }, { "qid": "KOL-2018-05-3148-Q002", "text": "where each type of valve is used ..all gate globe, butterfly", "family": "General Marine Engineering", "subtopic": "Gate Valve", "tid": "KOL-2018-05-3148", "tray": "review", "candidates": [ { "answer_id": "GV-330-001", "score": 0.7143179774284363, "sibling_score": 0.7143179774284363, "answer_score": 0.5122650533914566, "sibling_qid": "KOC-2026-08-2117-Q004", "sibling_text": "globe valve or gate valve draw anyone", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Draw and explain the gate valve — construction, main parts, operation & onboard use", "cross_family": false }, { "answer_id": "JCW-SYS-005", "score": 0.6723800301551819, "sibling_score": 0.6723800301551819, "answer_score": 0.5319837152957916, "sibling_qid": "MUM-2026-04-1319-Q003", "sibling_text": "why butterfly valve", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "What valve is used in the ME jacket cooling-water system - why butterfly and not gate, and where they are positioned", "cross_family": false }, { "answer_id": "SDNR-SDR-004", "score": 0.6578877568244934, "sibling_score": 0.6578877568244934, "answer_score": null, "sibling_qid": "KOL-2024-09-3711-Q003", "sibling_text": "spring loaded non return globe valve where use in engine room", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Spring-loaded spindleless non-return globe valve -- working principle and engine-room use", "cross_family": false } ] }, { "qid": "KOL-2018-05-3148-Q003", "text": "name of the valve in compressors", "family": "Air Compressor", "subtopic": "Reciprocating Compressor", "tid": "KOL-2018-05-3148", "tray": "review", "candidates": [ { "answer_id": "MAC-598-001", "score": 0.7819939255714417, "sibling_score": 0.7819939255714417, "answer_score": 0.5312211215496063, "sibling_qid": "KOC-2023-08-0983-Q006", "sibling_text": "compressor valve details", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "The main air compressor valve — arrangement, parts, and why the construction is so complex", "cross_family": false }, { "answer_id": "REEF-COMP-008", "score": 0.693095326423645, "sibling_score": 0.693095326423645, "answer_score": null, "sibling_qid": "MUM-2025-11-2491-Q003", "sibling_text": "in tandam type compressor where is valve fitted", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Valves, clearances, oil carry-over, refrigerant-in-oil, frosting, tandem valves, cooling — fault checks", "cross_family": true }, { "answer_id": "ACRV-003", "score": 0.6929067969322205, "sibling_score": 0.6929067969322205, "answer_score": 0.4805596053600311, "sibling_qid": "KOL-2017-09-3091-Q002", "sibling_text": "aircompressor relief valve", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Relief valve — requirement, function, and construction/drawing", "cross_family": false } ] }, { "qid": "KOL-2018-05-3149-Q004", "text": "How is rudder supported? In a semi balanced rudder what is the purpose of sole piece and bottom pintle?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2018-05-3149", "tray": "new", "candidates": [ { "answer_id": "TRS-002", "score": 0.6412336230278015, "sibling_score": 0.6412336230278015, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.5417835116386414, "sibling_score": 0.5417835116386414, "answer_score": null, "sibling_qid": "MUM-2026-06-3584-Q005", "sibling_text": "what takes weight of rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "STEER-055-A-003", "score": 0.4973389506340027, "sibling_score": 0.4973389506340027, "answer_score": 0.4111870065331459, "sibling_qid": "KOL-2023-08-1751-Q006", "sibling_text": "hunting gear mechanism hunting of rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Hunting gear, floating lever and buffer spring", "cross_family": false } ] }, { "qid": "KOL-2018-05-3963-Q003", "text": "Which ship ? Tanker. Ig system trips.cross questions about values of low pressure bla bla...", "family": "Tanker Operations & IG Systems", "subtopic": "IG System Trips", "tid": "KOL-2018-05-3963", "tray": "review", "candidates": [ { "answer_id": "IGAT-583-003", "score": 0.8222570419311523, "sibling_score": 0.8222570419311523, "answer_score": 0.47043218612670895, "sibling_qid": "KOL-2018-08-3176-Q015", "sibling_text": "which ship tanker ig system trips cross questions about values of low pressure bla bla", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What are the set values for the IG system alarms and trips — IG line high, low and low-low pressure, oxygen content, PV valve and breaker pressures?", "cross_family": true }, { "answer_id": "LPG-LNG-004", "score": 0.596222996711731, "sibling_score": 0.596222996711731, "answer_score": null, "sibling_qid": "KOL-2024-01-3668-Q001", "sibling_text": "asked me which ship i sailed and asked what is pressure surge in lpg cargo system", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Loading / discharging, tank pressure, pump and disconnection", "cross_family": true }, { "answer_id": "IGAT-583-001", "score": 0.5962210297584534, "sibling_score": 0.5962210297584534, "answer_score": 0.5197267383337021, "sibling_qid": "KOL-2023-07-0758-Q001", "sibling_text": "which type of ship you have sail i told oil tankers then tell me the alarm and trip of ig scrubber system", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "State all the alarms, trips and safety cut-outs provided on a tanker inert gas (IG) system.", "cross_family": true } ] }, { "qid": "KOL-2018-05-3963-Q007", "text": "What is watt meter? Components, working What is P.F. What is its normal value?", "family": "Electrical - Generator & Alternator", "subtopic": "Power Factor", "tid": "KOL-2018-05-3963", "tray": "review", "candidates": [ { "answer_id": "PF-A-003", "score": 0.8131111264228821, "sibling_score": 0.8131111264228821, "answer_score": null, "sibling_qid": "KOL-2018-08-3176-Q021", "sibling_text": "what is watt meter components working what is p f what is its normal value", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "What power factor is held on board, and where it is read", "cross_family": false }, { "answer_id": "PF-B-001", "score": 0.6253760457038879, "sibling_score": 0.6253760457038879, "answer_score": null, "sibling_qid": "KOC-2024-10-1421-Q009", "sibling_text": "if your generator power kw meter get fault how will you calculate power how much powefactor needs where you get power factor readings if power factor reduce what will happened some more questions with this", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Low power factor — causes and effects", "cross_family": false }, { "answer_id": "PF-A-001", "score": 0.6204519867897034, "sibling_score": 0.6204519867897034, "answer_score": 0.5145510613918304, "sibling_qid": "KOC-2025-11-1621-Q004", "sibling_text": "what is power factor and value", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "What is power factor, and why does it matter on board?", "cross_family": false } ] }, { "qid": "KOL-2018-06-0182-Q003", "text": "what is the ventilation arrangement in ro-ro ships.", "family": "Auxiliary Equipment", "subtopic": "Vent Heads / Air Vents", "tid": "KOL-2018-06-0182", "tray": "new", "candidates": [ { "answer_id": "MAST-PVA-001", "score": 0.6024446487426758, "sibling_score": 0.6024446487426758, "answer_score": null, "sibling_qid": "KOL-2022-07-0649-Q006", "sibling_text": "venting arrangements as per imo new regulations", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Cargo tank venting — primary & secondary means and the regulation", "cross_family": true }, { "answer_id": "VENT-HD-008", "score": 0.5980438590049744, "sibling_score": 0.5980438590049744, "answer_score": 0.45643551051616665, "sibling_qid": "KOC-2024-10-0433-Q005", "sibling_text": "ballast tank vent arrangement", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Compare ballast, bunker and fuel tank vent-head arrangements and fittings", "cross_family": false }, { "answer_id": "VENT-HD-006", "score": 0.559644341468811, "sibling_score": 0.559644341468811, "answer_score": null, "sibling_qid": "KOL-2017-10-0118-Q005", "sibling_text": "ill survey x qn how is arrangement of air vent with deck how fuel tank vent connection from tank to deck", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Tank vent / air-pipe arrangement, and why tanks require ventilation", "cross_family": false } ] }, { "qid": "KOL-2018-06-0182-Q007", "text": "how many elements in ism, what r they", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOL-2018-06-0182", "tray": "new", "candidates": [ { "answer_id": "ISM-ELEM-003", "score": 0.641635000705719, "sibling_score": 0.641635000705719, "answer_score": 0.4534827649593353, "sibling_qid": "KOC-2026-02-0818-Q006", "sibling_text": "ism elements", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": false }, { "answer_id": "ISM-ELEM-002", "score": 0.5640071034431458, "sibling_score": 0.5640071034431458, "answer_score": null, "sibling_qid": "KOC-2026-02-0832-Q008", "sibling_text": "ism code explain all elements", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the ISM Code?", "cross_family": false }, { "answer_id": "ISPS-OV-001", "score": 0.5325244069099426, "sibling_score": 0.5325244069099426, "answer_score": null, "sibling_qid": "KOL-2024-11-0890-Q006", "sibling_text": "isps elements", "sibling_family": "ISPS", "via": "sibling", "answer_title": "ISPS Code: what it is, structure and key elements", "cross_family": true } ] }, { "qid": "KOL-2018-06-0182-Q010", "text": "Ur ship hull is holed, how u will inform to ur company .. total reporting", "family": "ISM Code", "subtopic": "Root Cause / Incident Reporting", "tid": "KOL-2018-06-0182", "tray": "review", "candidates": [ { "answer_id": "ISM-AUD-P03-003", "score": 0.725409209728241, "sibling_score": 0.725409209728241, "answer_score": null, "sibling_qid": "KOC-2025-10-2075-Q006", "sibling_text": "hull damage has taken place how will you report to your company following sms one more question which i never heard", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Non-conformity, major non-conformity and incident reporting under SMS", "cross_family": false }, { "answer_id": "HULL-DD-003", "score": 0.6951847672462463, "sibling_score": 0.6951847672462463, "answer_score": 0.48858482539653775, "sibling_qid": "KOC-2021-05-1755-Q011", "sibling_text": "hull breach and what actions taken to report to company", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "3. Side-shell hole or hull breach at the waterline: emergency action and repair", "cross_family": true }, { "answer_id": "HULL-DD-006", "score": 0.6684662103652954, "sibling_score": 0.6684662103652954, "answer_score": 0.5363915801048279, "sibling_qid": "CHE-2025-07-0404-Q003", "sibling_text": "dent on your ship how to report to office", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "7. Hull damage / collision / dent reporting and shell-plating designation", "cross_family": true } ] }, { "qid": "KOL-2018-06-0182-Q013", "text": "Ibc and imdg code, which chapter in Sola's and marpol", "family": "Cargo Ops - Bulk Carriers", "subtopic": "IMSBC / Grain / IMDG Code", "tid": "KOL-2018-06-0182", "tray": "new", "candidates": [ { "answer_id": "SOLAS12-C-001", "score": 0.6033973693847656, "sibling_score": 0.6033973693847656, "answer_score": null, "sibling_qid": "KOL-2019-07-0296-Q003", "sibling_text": "solas chapter 12 imdg code", "sibling_family": "", "via": "sibling", "answer_title": "Explain SOLAS Chapter XII for bulk carriers — oral-exam overview", "cross_family": false }, { "answer_id": "SOLAS-OVW-001", "score": 0.6030158996582031, "sibling_score": 0.6030158996582031, "answer_score": null, "sibling_qid": "KOL-2021-10-0556-Q005", "sibling_text": "solas how many chapters and marpol annexs", "sibling_family": "", "via": "sibling", "answer_title": "SOLAS — how many chapters, and what each covers", "cross_family": false }, { "answer_id": "SOLAS-XII-BC-002", "score": 0.5890599489212036, "sibling_score": 0.5890599489212036, "answer_score": null, "sibling_qid": "MUM-2023-03-0095-Q001", "sibling_text": "marpol annex6 aim applicable to 2 solas chapter 12", "sibling_family": "SOLAS - General (HOLD)", "via": "sibling", "answer_title": "Explain SOLAS Chapter XII — the additional safety measures for bulk carriers", "cross_family": true } ] }, { "qid": "KOL-2018-06-0184-Q004", "text": "MLC 2006", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOL-2018-06-0184", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-007", "score": 0.5771352648735046, "sibling_score": 0.5771352648735046, "answer_score": null, "sibling_qid": "MUM-2026-02-0734-Q007", "sibling_text": "mlc 2006 detainable deficiency", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false }, { "answer_id": "MLC-WRH-B-002", "score": 0.4793151915073395, "sibling_score": 0.4793151915073395, "answer_score": null, "sibling_qid": "MUM-2022-07-0027-Q005", "sibling_text": "mlc 2006 wages rest hours", "sibling_family": "MLC", "via": "sibling", "answer_title": "Work and rest hours under MLC — the criteria, the weekly limit, the intervals", "cross_family": false }, { "answer_id": "DUS-P1-03", "score": 0.46649420261383057, "sibling_score": 0.46649420261383057, "answer_score": null, "sibling_qid": "KOL-2023-04-0735-Q004", "sibling_text": "docking plan 5 mlc 2006", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Docking plan — content, purpose and how the 2E uses it", "cross_family": true } ] }, { "qid": "KOL-2018-06-0185-Q001", "text": "difference between DP1 DP2 AND DP3", "family": "Automation & Controls", "subtopic": "Bridge Control of ME", "tid": "KOL-2018-06-0185", "tray": "new", "candidates": [ { "answer_id": "NDT-METH-P01-002", "score": 0.5075199604034424, "sibling_score": 0.5075199604034424, "answer_score": null, "sibling_qid": "MUM-2025-07-2345-Q005", "sibling_text": "significant difference between mpt dpt", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Dye penetrant test (DPT): principle, procedure, penetrant/developer properties, safety", "cross_family": true }, { "answer_id": "ISPS-SL-003", "score": 0.5029723644256592, "sibling_score": 0.5029723644256592, "answer_score": null, "sibling_qid": "MUM-2026-03-2929-Q009", "sibling_text": "isps level difference between 2 3", "sibling_family": "ISPS", "via": "sibling", "answer_title": "Security levels — who sets them, ship vs port, level 2 vs 3", "cross_family": true }, { "answer_id": "AUC-CTL-01", "score": 0.49909090995788574, "sibling_score": 0.49909090995788574, "answer_score": null, "sibling_qid": "KOL-2021-07-2470-Q002", "sibling_text": "pid difference in these", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Choosing P, PI or PID control", "cross_family": false } ] }, { "qid": "KOL-2018-06-0185-Q004", "text": "Ism elements. What is emergency preparedness. What is designated person responsibility.", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOL-2018-06-0185", "tray": "review", "candidates": [ { "answer_id": "ISM-ELEM-005", "score": 0.6596766114234924, "sibling_score": 0.6596766114234924, "answer_score": 0.46118672490119933, "sibling_qid": "MUM-2025-08-0393-Q006", "sibling_text": "ism emergency preparedness", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Emergency preparedness (Element 8)", "cross_family": false }, { "answer_id": "ISM-DPA-004", "score": 0.5770354270935059, "sibling_score": 0.5770354270935059, "answer_score": null, "sibling_qid": "CHE-2026-05-0557-Q015", "sibling_text": "masters overriding authority and emergency preparedness internal deciding question", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Master's overriding authority and the DPA relationship (ISM chapters)", "cross_family": false }, { "answer_id": "ISM-DPA-002", "score": 0.559336245059967, "sibling_score": 0.559336245059967, "answer_score": null, "sibling_qid": "KOC-2023-03-0172-Q004", "sibling_text": "ism who is responsible for ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "DPA basis : which convention, which code, and who is responsible for ISM", "cross_family": false } ] }, { "qid": "KOL-2018-06-0191-Q001", "text": "Types of ship sailed? Container and bulk", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2018-06-0191", "tray": "review", "candidates": [ { "answer_id": "DB-TORBOX-B-003", "score": 0.8043274283409119, "sibling_score": 0.8043274283409119, "answer_score": null, "sibling_qid": "CHE-2026-04-0150-Q001", "sibling_text": "type of ship sailed container", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "What is a torsion box — definition and construction", "cross_family": false }, { "answer_id": "SOLAS12-BC-A-001", "score": 0.772861897945404, "sibling_score": 0.772861897945404, "answer_score": 0.5611715197563171, "sibling_qid": "MUM-2026-06-3382-Q001", "sibling_text": "type of ship sailed bulk carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "SOLAS definition and scope of a bulk carrier", "cross_family": false }, { "answer_id": "SOLAS12-BC-B-001", "score": 0.7529258131980896, "sibling_score": 0.7529258131980896, "answer_score": null, "sibling_qid": "MUM-2026-06-3622-Q001", "sibling_text": "type of ship container and bulk safety", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Additional safety measures for bulk carriers (SOLAS Chapter XII)", "cross_family": false } ] }, { "qid": "KOL-2018-06-0192-Q002", "text": "Additional safety for bulk carrier.", "family": "Cargo Ops - Bulk Carriers", "subtopic": "IMSBC / TML", "tid": "KOL-2018-06-0192", "tray": "review", "candidates": [ { "answer_id": "SOLAS12-BC-B-001", "score": 0.8330826163291931, "sibling_score": 0.8330826163291931, "answer_score": null, "sibling_qid": "MUM-2026-06-3436-Q003", "sibling_text": "additional safety measures in bulk carrier", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Additional safety measures for bulk carriers (SOLAS Chapter XII)", "cross_family": false }, { "answer_id": "BC-IMSBC-001", "score": 0.8195459246635437, "sibling_score": 0.8195459246635437, "answer_score": null, "sibling_qid": "MUM-2026-06-3541-Q003", "sibling_text": "what additional safety of bulk carrier", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "1. Bulk carrier safety requirements — SOLAS Chapter XII and recent additions", "cross_family": false }, { "answer_id": "SOLAS-CH-013", "score": 0.6079933166503906, "sibling_score": null, "answer_score": 0.6079933166503906, "sibling_qid": "", "sibling_text": "solas chapter xii additional safety measures for bulk carriers", "sibling_family": "", "via": "answer_title", "answer_title": "SOLAS Chapter XII - additional safety measures for bulk carriers", "cross_family": false } ] }, { "qid": "KOL-2018-06-0193-Q002", "text": "Angle of lurch", "family": "", "subtopic": "Angle of Loll / Stiff & Tender", "tid": "KOL-2018-06-0193", "tray": "new", "candidates": [ { "answer_id": "LOLL-P02-005", "score": 0.6316691637039185, "sibling_score": 0.6316691637039185, "answer_score": 0.4307252287864685, "sibling_qid": "KOL-2017-01-0042-Q001", "sibling_text": "angle if loll angle of lorch at wt angle it occure how much gm gz at angle of lurch", "sibling_family": "", "via": "sibling", "answer_title": "5. Loll among the limits — vanishing stability, lurch, downflooding, contraflexure", "cross_family": false }, { "answer_id": "LOLL-CORE-P01-001", "score": 0.6068353652954102, "sibling_score": 0.6068353652954102, "answer_score": 0.4524039775133133, "sibling_qid": "MUM-2022-07-0020-Q024", "sibling_text": "angle of loll", "sibling_family": "", "via": "sibling", "answer_title": "What is angle of loll?", "cross_family": false }, { "answer_id": "LOLL-P02-002", "score": 0.4550473183393478, "sibling_score": null, "answer_score": 0.4550473183393478, "sibling_qid": "", "sibling_text": "1 correcting angle of loll the ballasting sequence loll is a small negative gm g above m unstable upright settles where gz returns to zero with the curve rising calculation hook for a wall sided estimate tan of the loll angle equals the square root of minus 2 gm over bm using the negative upright gm", "sibling_family": "", "via": "answer_title", "answer_title": "1. 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Loll among the limits — vanishing stability, lurch, downflooding, contraflexure", "cross_family": false }, { "answer_id": "LOLL-P02-001", "score": 0.5616245269775391, "sibling_score": 0.5616245269775391, "answer_score": 0.3945703715085983, "sibling_qid": "CHE-2026-05-0580-Q001", "sibling_text": "significance of angle of loll", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "4. Significance of angle of loll — and why it occurs", "cross_family": false }, { "answer_id": "STAB-GZ-P03-001", "score": 0.5569319128990173, "sibling_score": 0.5569319128990173, "answer_score": null, "sibling_qid": "KOL-2025-01-0907-Q003", "sibling_text": "kn curve angle of loll gz significance", "sibling_family": "", "via": "sibling", "answer_title": "Cross curves / KN curves — what they are, their axes, and how they give you GZ", "cross_family": false } ] }, { "qid": "KOL-2018-06-0194-Q004", "text": "Rudder hydraulic test in drydock?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2018-06-0194", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.8098155856132507, "sibling_score": 0.8098155856132507, "answer_score": 0.5136428594589233, "sibling_qid": "MUM-2026-09-3927-Q009", "sibling_text": "tests on rudder in dry dock", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "DUS-P5-05", "score": 0.7585873603820801, "sibling_score": 0.7585873603820801, "answer_score": 0.517223584651947, "sibling_qid": "MUM-2026-05-2994-Q006", "sibling_text": "rudder check in dry dock", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Rudder checks and rudder-blade tightness/leak test in drydock", "cross_family": false }, { "answer_id": "DUS-P2-02", "score": 0.5012936234474182, "sibling_score": null, "answer_score": 0.5012936234474182, "sibling_qid": "", "sibling_text": "sea trial checks after drydock items not related to the main engine steering gear solas ii 1 reg 29 3 2 35 one side to 30 the other in not more than 28 s at the ship s deepest seagoing draught and maximum ahead service speed or the permitted alternative sea trial loading where deepest draught is impracticable power unit and control configurations tested per the approved steering arrangement rudder", "sibling_family": "", "via": "answer_title", "answer_title": "Sea-trial checks after drydock — items not related to the main engine", "cross_family": false } ] }, { "qid": "KOL-2018-06-1379-Q005", "text": "Hydraulic oil contaminate", "family": "Steering Gear & Hydraulics", "subtopic": "Hydraulic Oil Cleanliness / NAS / ISO Particle Count", "tid": "KOL-2018-06-1379", "tray": "new", "candidates": [ { "answer_id": "LO-TEST-P02-003", "score": 0.6485769748687744, "sibling_score": 0.6485769748687744, "answer_score": null, "sibling_qid": "KOC-2026-05-0003-Q012", "sibling_text": "me lub oil is contaminated with fresh water actions", "sibling_family": "2-Stroke - 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Fuel Injection & Pumps", "subtopic": "Fuel Quality / CCAI", "tid": "KOL-2018-06-1385", "tray": "review", "candidates": [ { "answer_id": "FQCC-583-A-001", "score": 0.8037641644477844, "sibling_score": 0.8037641644477844, "answer_score": 0.3433748573064804, "sibling_qid": "CHE-2026-05-0556-Q003", "sibling_text": "ccai", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "CCAI — what it is, how it is calculated, and what it is really for", "cross_family": false }, { "answer_id": "BDC-P02-03", "score": 0.5607377290725708, "sibling_score": 0.5607377290725708, "answer_score": null, "sibling_qid": "KOL-2025-11-2907-Q001", "sibling_text": "cca mca hca", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "Cranking ratings — CCA, MCA and HCA on a starting battery", "cross_family": true }, { "answer_id": "DCP-PPC-003", "score": 0.3243731915950775, "sibling_score": null, "answer_score": 0.3243731915950775, "sibling_qid": "", "sibling_text": "c3 dcp general working advantages disadvantages common issues", "sibling_family": "", "via": "answer_title", "answer_title": "C3 — DCP — General Working, Advantages, Disadvantages & Common Issues", "cross_family": false } ] }, { "qid": "KOL-2018-06-1387-Q001", "text": "Underslung crankshaft", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Modern Bedplate Construction", "tid": "KOL-2018-06-1387", "tray": "review", "candidates": [ { "answer_id": "CRANK-217-003", "score": 0.8447920680046082, "sibling_score": 0.8447920680046082, "answer_score": 0.6037922620773315, "sibling_qid": "MUM-2022-10-1031-Q009", "sibling_text": "underslung crankshaft", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Underslung crankshaft", "cross_family": false }, { "answer_id": "CRK-DEFL-006", "score": 0.7117764353752136, "sibling_score": 0.7117764353752136, "answer_score": null, "sibling_qid": "KOL-2017-07-1852-Q006", "sibling_text": "grounding and affect in crankshaft", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Checks after grounding, refloating or heavy weather", "cross_family": false }, { "answer_id": "CRANK-217-001", "score": 0.6828897595405579, "sibling_score": 0.6828897595405579, "answer_score": 0.48256022334098814, "sibling_qid": "MUM-2026-01-1239-Q003", "sibling_text": "what is semi built type crankshaft", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankshaft types and how the type is identified", "cross_family": false } ] }, { "qid": "KOL-2018-06-1388-Q002", "text": "Crankpin ovality in 4 stroke", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Crankshaft / Crankpin / Bearings", "tid": "KOL-2018-06-1388", "tray": "review", "candidates": [ { "answer_id": "CRPIN-CHK-P01-001", "score": 0.7392030954360962, "sibling_score": 0.7392030954360962, "answer_score": 0.5688765436410904, "sibling_qid": "KOL-2025-04-3776-Q001", "sibling_text": "crankpin connecting rod ovality", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankpin ovality — how it is measured and at what positions", "cross_family": true }, { "answer_id": "AE-CSB-346-004", "score": 0.7389116883277893, "sibling_score": 0.7389116883277893, "answer_score": 0.5556087702512741, "sibling_qid": "MUM-2022-07-1014-Q005", "sibling_text": "ae crankpin ovality and action", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Crankpin ovality / damage — check and repair action", "cross_family": false }, { "answer_id": "AE-CRP-004", "score": 0.6938108801841736, "sibling_score": 0.6938108801841736, "answer_score": null, "sibling_qid": "CHE-2025-08-0512-Q004", "sibling_text": "how u measure connecting rod ovality in 4s why not in 2s", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE connecting-rod inspection — ovality, trueness, serrations, action if out of limit", "cross_family": false } ] }, { "qid": "KOL-2018-06-2200-Q002", "text": "SOLAS regulation for emergency power supply. Details of chapter n regulation. what are sources of emergency supply onboard ?", "family": "Electrical - Generator & Alternator", "subtopic": "Emergency DG", "tid": "KOL-2018-06-2200", "tray": "review", "candidates": [ { "answer_id": "EDG-P01-001", "score": 0.7865133285522461, "sibling_score": 0.7865133285522461, "answer_score": 0.6118812680244445, "sibling_qid": "KOL-2025-09-2875-Q007", "sibling_text": "emergency sources of power onboard solas requirements", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Emergency source of power — the SOLAS requirements", "cross_family": false }, { "answer_id": "EMG-DG-P02-FINAL-2-001", "score": 0.7396969199180603, "sibling_score": 0.7396969199180603, "answer_score": null, "sibling_qid": "MUM-2022-11-1366-Q001", "sibling_text": "emergency power supply solas requirements", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Emergency generator loads and duration of emergency supply", "cross_family": false }, { "answer_id": "EDG-P01-004", "score": 0.5790854811668396, "sibling_score": null, "answer_score": 0.5790854811668396, "sibling_qid": "", "sibling_text": "emergency generator explain it as a 2nd engineer independent emergency source feeding the emergency switchboard supplies the safety essential loads on loss of main power reg 43 distribution ship typical not a solas figure power loads at the generated voltage commonly 440 v emergency fire pump steering gear emergency air compressor the lighting transformer feed lighting small loads via step down tr", "sibling_family": "", "via": "answer_title", "answer_title": "Emergency generator — explain it as a 2nd Engineer", "cross_family": false } ] }, { "qid": "KOL-2018-06-2200-Q003", "text": "How does a diode look like? how will u test a diode. ?what happens when u put a multi meter in diode mode.?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Zener / Diode / Rectifier", "tid": "KOL-2018-06-2200", "tray": "review", "candidates": [ { "answer_id": "EPC-P01-02", "score": 0.6963855624198914, "sibling_score": 0.6963855624198914, "answer_score": null, "sibling_qid": "CHE-2026-05-0627-Q008", "sibling_text": "diode testing", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Types of diodes, and where diodes are used on board", "cross_family": false }, { "answer_id": "EPC-P01-01", "score": 0.667227566242218, "sibling_score": 0.667227566242218, "answer_score": 0.5094878584146499, "sibling_qid": "CHE-2026-05-0603-Q004", "sibling_text": "what is diode", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a diode? Symbol, forward and reverse bias, and the characteristic curve", "cross_family": false }, { "answer_id": "GMCM-583-A-006", "score": 0.6670438647270203, "sibling_score": 0.6670438647270203, "answer_score": 0.5481166869401931, "sibling_qid": "KOC-2025-11-1652-Q001", "sibling_text": "how to test diodes and transistors using a multimeter", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "06. Testing diodes and transistors with a multimeter", "cross_family": false } ] }, { "qid": "KOL-2018-06-2202-Q008", "text": "How u will write a letter to company for side shell damage ?", "family": "ISM Code", "subtopic": "Root Cause / Incident Reporting", "tid": "KOL-2018-06-2202", "tray": "review", "candidates": [ { "answer_id": "SHELL-PLT-A-001", "score": 0.8001314401626587, "sibling_score": 0.8001314401626587, "answer_score": null, "sibling_qid": "KOL-2018-08-1861-Q013", "sibling_text": "how u will write a letter to company for side shell damage", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "The shell expansion plan, and how you identify a plate", "cross_family": true }, { "answer_id": "ISM-AUD-P03-003", "score": 0.6130310893058777, "sibling_score": 0.6130310893058777, "answer_score": null, "sibling_qid": "KOC-2025-10-2075-Q006", "sibling_text": "hull damage has taken place how will you report to your company following sms one more question which i never heard", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Non-conformity, major non-conformity and incident reporting under SMS", "cross_family": false }, { "answer_id": "HULL-DD-006", "score": 0.5402834415435791, "sibling_score": 0.5402834415435791, "answer_score": 0.41051578521728516, "sibling_qid": "CHE-2025-07-0404-Q003", "sibling_text": "dent on your ship how to report to office", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "7. Hull damage / collision / dent reporting and shell-plating designation", "cross_family": true } ] }, { "qid": "KOL-2018-06-2207-Q004", "text": "Zener barrier ?", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOL-2018-06-2207", "tray": "review", "candidates": [ { "answer_id": "EPC-P02-03", "score": 0.6884129047393799, "sibling_score": 0.6884129047393799, "answer_score": 0.43674425780773163, "sibling_qid": "CHE-2026-02-0333-Q002", "sibling_text": "zener barrier", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Where is a zener diode used on board and why — voltage regulator, AVR, clipper — and explain one application in detail.", "cross_family": false }, { "answer_id": "EPC-P02-01", "score": 0.687938928604126, "sibling_score": 0.687938928604126, "answer_score": 0.47152475416660306, "sibling_qid": "MUM-2026-03-2019-Q005", "sibling_text": "zener barrier", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a zener diode? Draw its symbol, explain its working principle, and draw and explain its characteristic curve including the zener (breakdown) voltage.", "cross_family": false }, { "answer_id": "HAZ-EX-B-001", "score": 0.6209691166877747, "sibling_score": 0.6209691166877747, "answer_score": null, "sibling_qid": "CHE-2026-03-0358-Q005", "sibling_text": "zener barrier working in intrinsically safe", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Intrinsically safe (Ex i) equipment — what it is, how it works, where it is used, how you identify it", "cross_family": false } ] }, { "qid": "KOL-2018-06-3152-Q001", "text": "Type of ship, u have done.", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2018-06-3152", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8213431239128113, "sibling_score": 0.8213431239128113, "answer_score": null, "sibling_qid": "MUM-2026-02-1280-Q001", "sibling_text": "type of ship done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.739757239818573, "sibling_score": 0.739757239818573, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.7394401431083679, "sibling_score": 0.7394401431083679, "answer_score": 0.4654416352510452, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "KOL-2018-06-3152-Q005", "text": "What to check while overhauling of boiler safety valve ?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2018-06-3152", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P01-001", "score": 0.8405272364616394, "sibling_score": 0.8405272364616394, "answer_score": null, "sibling_qid": "KOL-2026-01-3900-Q005", "sibling_text": "check on safety valve during overhaul", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.7662342190742493, "sibling_score": 0.7662342190742493, "answer_score": null, "sibling_qid": "CHE-2026-05-0647-Q007", "sibling_text": "boiler safety valve maintenance", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.7608484625816345, "sibling_score": 0.7608484625816345, "answer_score": null, "sibling_qid": "MUM-2026-01-1242-Q010", "sibling_text": "boiler safety valve type and what is left of safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOL-2018-07-0195-Q002", "text": "Elements of ISM , Objective Certificates, SMS", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOL-2018-07-0195", "tray": "new", "candidates": [ { "answer_id": "ISM-SMC-B-001", "score": 0.6291267275810242, "sibling_score": 0.6291267275810242, "answer_score": 0.3984442889690399, "sibling_qid": "MUM-2023-09-0126-Q002S7", "sibling_text": "ism code certificates doc smc all details", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "SMC — purpose, contents, issue and validity", "cross_family": false }, { "answer_id": "ISM-SMCDOC-A-001", "score": 0.6282973885536194, "sibling_score": 0.6282973885536194, "answer_score": null, "sibling_qid": "KOL-2025-05-0939-Q004", "sibling_text": "ism and its certificate", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM certificates: the DOC and SMC family", "cross_family": false }, { "answer_id": "ISM-SMC-B-005", "score": 0.6221447587013245, "sibling_score": 0.6221447587013245, "answer_score": null, "sibling_qid": "KOC-2024-03-0318-Q002", "sibling_text": "ism code no of parts contents and how to get the ism certification he wants to hear sms implementation procedure then he asked will u get certificate he wants to hear interim certification", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Obtaining the DOC and SMC — who issues, who audits", "cross_family": false } ] }, { "qid": "KOL-2018-07-0200-Q004", "text": "How to calculate tanks internal volume,", "family": "Tank Calibration & Sounding", "subtopic": "Tank Volume Calculation", "tid": "KOL-2018-07-0200", "tray": "new", "candidates": [ { "answer_id": "CO2-CALC-P01-002", "score": 0.5576611757278442, "sibling_score": 0.5576611757278442, "answer_score": null, "sibling_qid": "KOC-2024-11-0467-Q005", "sibling_text": "co 2 bottle calculation with 10000 engine room volume", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "How is the required CO2 quantity and number of bottles calculated for an engine-room total-flooding system?", "cross_family": true }, { "answer_id": "CO2-CALC-P01-005", "score": 0.5468456745147705, "sibling_score": 0.5468456745147705, "answer_score": 0.4609863996505737, "sibling_qid": "KOC-2022-01-0047-Q004", "sibling_text": "calculate number of co2 cyl required for 8000 engine room volume excluding engine casing", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "How is engine-room casing volume treated — the separate calculation with and without casing?", "cross_family": true }, { "answer_id": "FSE-P03-003", "score": 0.5424402952194214, "sibling_score": 0.5424402952194214, "answer_score": 0.4947654217481613, "sibling_qid": "KOL-2025-09-1032-Q003", "sibling_text": "what why how about is free surface its effect in port if tank 50 full or 80 free surface effect in port which is more why more how to know how to calculate", "sibling_family": "", "via": "sibling", "answer_title": "3. Formula, factors and calculation", "cross_family": false } ] }, { "qid": "KOL-2018-07-1391-Q001", "text": "which company?how many ships have you done?Type of M/E. what was the stroke and bore?", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "KOL-2018-07-1391", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.6527279615402222, "sibling_score": 0.6527279615402222, "answer_score": null, "sibling_qid": "MUM-2026-05-3248-Q001", "sibling_text": "introduction sea time company pre sea ship type engine type me", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.6165547370910645, "sibling_score": 0.6165547370910645, "answer_score": null, "sibling_qid": "CHE-2026-02-0243-Q001", "sibling_text": "type of ship and type of main engine you worked", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "AC-VE-001", "score": 0.570944607257843, "sibling_score": 0.570944607257843, "answer_score": null, "sibling_qid": "MUM-2026-01-2904-Q001", "sibling_text": "what type of ship engine power and nomenclature", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Volumetric efficiency: define it, and if it drops how do you improve it (with bumping clearance)?", "cross_family": false } ] }, { "qid": "KOL-2018-07-1391-Q009", "text": "Steering gear locking arrangement?which one is easy?At what position will you lock the rudder while your ship is being towed??", "family": "Steering Gear & Hydraulics", "subtopic": "Tiller / Rudder Stock", "tid": "KOL-2018-07-1391", "tray": "review", "candidates": [ { "answer_id": "SG-055-B-003", "score": 0.6808690428733826, "sibling_score": 0.6808690428733826, "answer_score": null, "sibling_qid": "KOL-2022-09-1711-Q005", "sibling_text": "type of steering gear in your ship redundancy how can we hydraulically lock steering gear", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Redundancy and the single-failure requirement (50% / 100%)", "cross_family": false }, { "answer_id": "STEER-055-A-004", "score": 0.6769621968269348, "sibling_score": 0.6769621968269348, "answer_score": null, "sibling_qid": "MUM-2026-07-3762-Q009", "sibling_text": "rudder locking", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Hydraulic faults — air, sluggish response, locking, leakage", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.6564194560050964, "sibling_score": 0.6564194560050964, "answer_score": null, "sibling_qid": "KOC-2026-04-0891-Q002", "sibling_text": "rudder after dock", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false } ] }, { "qid": "KOL-2018-07-1394-Q005", "text": "purpose of pintle", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2018-07-1394", "tray": "new", "candidates": [ { "answer_id": "TRS-002", "score": 0.4583183526992798, "sibling_score": 0.4583183526992798, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.4492229223251343, "sibling_score": 0.4492229223251343, "answer_score": null, "sibling_qid": "MUM-2026-05-3227-Q009", "sibling_text": "pintle clearances", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": true }, { "answer_id": "VIT-MECH-A-001", "score": 0.4347090423107147, "sibling_score": 0.4347090423107147, "answer_score": null, "sibling_qid": "CHE-2021-07-0172-Q003", "sibling_text": "purpose vit and puncture valve", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "VIT — what it is, why it is fitted, and its trade-offs", "cross_family": true } ] }, { "qid": "KOL-2018-07-1395-Q001", "text": "type of ship and engines. Diff b/w ME-A, ME-B, ME-C engines", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "KOL-2018-07-1395", "tray": "new", "candidates": [ { "answer_id": "MEB-MEC-P03-001", "score": 0.6488358974456787, "sibling_score": 0.6488358974456787, "answer_score": null, "sibling_qid": "MUM-2026-05-3000-Q003", "sibling_text": "different between me b and me c engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "ME-B vs ME-C — the core difference", "cross_family": true }, { "answer_id": "AE-CRP-005", "score": 0.6425027251243591, "sibling_score": 0.6425027251243591, "answer_score": null, "sibling_qid": "MUM-2026-09-3882-Q001", "sibling_text": "introduction types of ship main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "MCC-MEB-P01-001", "score": 0.6371369957923889, "sibling_score": 0.6371369957923889, "answer_score": null, "sibling_qid": "MUM-2026-09-3997-Q002", "sibling_text": "type of engine worked me mcc me b and rta", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "MC-C (\"Compact\") engine — design and the main constructional differences from MC", "cross_family": false } ] }, { "qid": "KOL-2018-07-2209-Q003", "text": "ICCP working and How anodes are fixed onto Hull ?", "family": "Electrical - ICCP & Cathodic Protection", "subtopic": "ICCP", "tid": "KOL-2018-07-2209", "tray": "review", "candidates": [ { "answer_id": "ICCP-P02-002", "score": 0.7065368890762329, "sibling_score": 0.7065368890762329, "answer_score": 0.5073794782161712, "sibling_qid": "MUM-2026-05-3083-Q005", "sibling_text": "checks on iccp sys in dd cross how anodes are attached to hull", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP drydock checks — anodes, shields, reference cells, bonding, hull", "cross_family": false }, { "answer_id": "ICCP-119-P01-002", "score": 0.6963881850242615, "sibling_score": 0.6963881850242615, "answer_score": null, "sibling_qid": "CHE-2026-04-0370-Q007", "sibling_text": "what is iccp principle of working components of iccp how the hull becomes cathode what is anode how many anodes how it is fitted", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP circuit / control arrangement, construction and main components", "cross_family": false }, { "answer_id": "REF-CELL-002", "score": 0.6901565194129944, "sibling_score": 0.6901565194129944, "answer_score": null, "sibling_qid": "KOL-2021-03-2441-Q004", "sibling_text": "iccp construction why two sets anodes are used fwd and aft why not amidships how anodes are connected to ships hull how does the reference cell measure the potential", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "How the reference cell measures hull potential and generates the feedback signal", "cross_family": false } ] }, { "qid": "KOL-2018-07-2210-Q002", "text": "Zener barrier ?", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOL-2018-07-2210", "tray": "review", "candidates": [ { "answer_id": "EPC-P02-03", "score": 0.6884129047393799, "sibling_score": 0.6884129047393799, "answer_score": 0.43674425780773163, "sibling_qid": "CHE-2026-02-0333-Q002", "sibling_text": "zener barrier", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Where is a zener diode used on board and why — voltage regulator, AVR, clipper — and explain one application in detail.", "cross_family": false }, { "answer_id": "EPC-P02-01", "score": 0.687938928604126, "sibling_score": 0.687938928604126, "answer_score": 0.47152475416660306, "sibling_qid": "MUM-2026-03-2019-Q005", "sibling_text": "zener barrier", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a zener diode? Draw its symbol, explain its working principle, and draw and explain its characteristic curve including the zener (breakdown) voltage.", "cross_family": false }, { "answer_id": "HAZ-EX-B-001", "score": 0.6209691166877747, "sibling_score": 0.6209691166877747, "answer_score": null, "sibling_qid": "CHE-2026-03-0358-Q005", "sibling_text": "zener barrier working in intrinsically safe", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Intrinsically safe (Ex i) equipment — what it is, how it works, where it is used, how you identify it", "cross_family": false } ] }, { "qid": "KOL-2018-07-2211-Q002", "text": "Brushless alternator working how many diodes in rectification", "family": "Electrical - Generator & Alternator", "subtopic": "Brushless Alternator", "tid": "KOL-2018-07-2211", "tray": "review", "candidates": [ { "answer_id": "DIODESO-002", "score": 0.6611869931221008, "sibling_score": 0.6611869931221008, "answer_score": 0.5137797027826309, "sibling_qid": "CHE-2026-05-0532-Q015", "sibling_text": "rotating diodes and brushless alternator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Explain the rotating diodes in a brushless alternator and the problems that arise in the brushless excitation system, including diode short circuit", "cross_family": false }, { "answer_id": "BRUSHALT-A-001", "score": 0.602212131023407, "sibling_score": 0.602212131023407, "answer_score": null, "sibling_qid": "MUM-2026-05-3292-Q003", "sibling_text": "brushless alternator working", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01 · Working principle of the brushless alternator / brushless excitation systemHigh", "cross_family": false }, { "answer_id": "DIODESO-001", "score": 0.5754956364631653, "sibling_score": null, "answer_score": 0.5754956364631653, "sibling_qid": "", "sibling_text": "two alternators in parallel one rotating rectifier diode goes short circuit what happens what if it goes open instead and how do you know which it is brushless set the main field on the rotor is fed by a rotating rectifier commonly six diodes in a three phase bridge off the ac exciter armature the avr controls the stationary exciter field no brushes or slip rings diode count is maker specific shor", "sibling_family": "", "via": "answer_title", "answer_title": "Two alternators in parallel — one rotating rectifier diode goes short circuit. What happens, what if it goes open instead, and how do you know which it is?", "cross_family": false } ] }, { "qid": "KOL-2018-07-2211-Q004", "text": "PTW and STT in HV system requirements", "family": "Risk & Safety Management", "subtopic": "Permit to Work / Enclosed Space", "tid": "KOL-2018-07-2211", "tray": "new", "candidates": [ { "answer_id": "T038-P01-002", "score": 0.49755942821502686, "sibling_score": 0.49755942821502686, "answer_score": null, "sibling_qid": "KOC-2022-09-1199-Q008", "sibling_text": "requirement for hv system", "sibling_family": "", "via": "sibling", "answer_title": "HV system onboard — layout, components, applications, earthing & protection", "cross_family": false }, { "answer_id": "HV-SYS-P06-001", "score": 0.468231201171875, "sibling_score": 0.468231201171875, "answer_score": null, "sibling_qid": "KOC-2021-07-1136-Q002", "sibling_text": "hv system requirements by class", "sibling_family": "", "via": "sibling", "answer_title": "Class and regulatory requirements for marine HV systems", "cross_family": false }, { "answer_id": "BCH-IBC-A-001", "score": 0.4397229552268982, "sibling_score": 0.4397229552268982, "answer_score": null, "sibling_qid": "MUM-2025-08-0412-Q003", "sibling_text": "st1 requirment", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Type 1, Type 2 and Type 3 chemical tankers — the ship-type classification", "cross_family": true } ] }, { "qid": "KOL-2018-07-2212-Q001", "text": "Min requirement of generator regulation", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator / Generator", "tid": "KOL-2018-07-2212", "tray": "new", "candidates": [ { "answer_id": "EDG-P01-001", "score": 0.6131139397621155, "sibling_score": 0.6131139397621155, "answer_score": null, "sibling_qid": "KOC-2026-03-0887-Q006", "sibling_text": "emergency generator regulation requirement", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Emergency source of power — the SOLAS requirements", "cross_family": false }, { "answer_id": "VDIP-589-004", "score": 0.6124480962753296, "sibling_score": 0.6124480962753296, "answer_score": 0.423307266831398, "sibling_qid": "KOL-2020-03-2380-Q002", "sibling_text": "regulation of generator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "What is voltage regulation of a generator?", "cross_family": false }, { "answer_id": "SYNC-D-003", "score": 0.5687416791915894, "sibling_score": 0.5687416791915894, "answer_score": null, "sibling_qid": "CHE-2025-07-0265-Q012", "sibling_text": "while llel 2 gen incoming generator voltage is low i said voltage trimmer is provided in the msb or generator can adjust or 5v he need percentage i don t surveyor said 2 5 of rated voltage", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Correct paralleling — checks, the synchroscope & phase angle, voltage trim, interlocks", "cross_family": false } ] }, { "qid": "KOL-2018-07-3160-Q004", "text": "Old generator, exhaust temp going high for all units at 50% load . What all checks to be carried out", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Decarb / Balancing / High Exhaust Temperature", "tid": "KOL-2018-07-3160", "tray": "review", "candidates": [ { "answer_id": "AE-HOT-BLOW-005", "score": 0.7447203397750854, "sibling_score": 0.7447203397750854, "answer_score": null, "sibling_qid": "KOL-2018-03-1361-Q007", "sibling_text": "ae one unit exhaust temp rising all unit rising why how to confirm nozzle ring is chocked there is no tc rpm monitor", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Auxiliary engine units rising — one versus all, and confirming a choked turbocharger nozzle ring", "cross_family": false }, { "answer_id": "CPP-POL-02", "score": 0.709211528301239, "sibling_score": 0.709211528301239, "answer_score": null, "sibling_qid": "CHE-2026-05-0531-Q001", "sibling_text": "one unit exhaust temp less reason checks", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "One main-engine cylinder has a low exhaust temperature — what are the causes and checks?", "cross_family": false }, { "answer_id": "EXH-T-HI-002", "score": 0.7063469290733337, "sibling_score": 0.7063469290733337, "answer_score": 0.6087128967046738, "sibling_qid": "CHE-2026-04-0259-Q004", "sibling_text": "temp of one unit exhaust is high wt will be ur action", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "One unit exhaust temperature high — causes, checks and actions", "cross_family": true } ] }, { "qid": "KOL-2018-07-3162-Q002", "text": "Different types of valves used in engine room. Describe them . Example where they are used. Action to be taken if sea water pipe after sea chest filter and valve is leaking .", "family": "General Marine Engineering", "subtopic": "Gate Valve", "tid": "KOL-2018-07-3162", "tray": "review", "candidates": [ { "answer_id": "SEA-CHEST-002", "score": 0.7349236011505127, "sibling_score": 0.7349236011505127, "answer_score": 0.5579539030790329, "sibling_qid": "CHE-2026-04-0167-Q007", "sibling_text": "what type of valve in sea chest and boiler blow down valve", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Sea-chest mountings, attachments, valves and uses", "cross_family": true }, { "answer_id": "SDNR-SDR-004", "score": 0.7306691408157349, "sibling_score": 0.7306691408157349, "answer_score": null, "sibling_qid": "KOL-2024-09-3711-Q003", "sibling_text": "spring loaded non return globe valve where use in engine room", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Spring-loaded spindleless non-return globe valve -- working principle and engine-room use", "cross_family": false }, { "answer_id": "GV-330-001", "score": 0.7137781977653503, "sibling_score": 0.7137781977653503, "answer_score": null, "sibling_qid": "CHE-2025-08-0414-Q003", "sibling_text": "gate valve where you will find in ship and purpose", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Draw and explain the gate valve — construction, main parts, operation & onboard use", "cross_family": false } ] }, { "qid": "KOL-2018-07-3162-Q007", "text": "What takes load for rudder . Function of upper and lower pintel .", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2018-07-3162", "tray": "new", "candidates": [ { "answer_id": "TRS-002", "score": 0.6180999875068665, "sibling_score": 0.6180999875068665, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.5856854319572449, "sibling_score": 0.5856854319572449, "answer_score": null, "sibling_qid": "MUM-2026-06-3584-Q005", "sibling_text": "what takes weight of rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "SPR-STERN-007", "score": 0.5235432386398315, "sibling_score": 0.5235432386398315, "answer_score": 0.4545514702796936, "sibling_qid": "KOL-2016-09-0014-Q002", "sibling_text": "how load of the rudder taking care and cross qst", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Rudder types, area, construction, load support & turning", "cross_family": true } ] }, { "qid": "KOL-2018-07-3964-Q004", "text": "ISM code? SMS and SMC", "family": "Surveys - Statutory", "subtopic": "Audit (Internal/External)", "tid": "KOL-2018-07-3964", "tray": "new", "candidates": [ { "answer_id": "ISM-SMC-B-002", "score": 0.6314082145690918, "sibling_score": 0.6314082145690918, "answer_score": null, "sibling_qid": "KOC-2024-10-0426-Q006", "sibling_text": "ism code interim smc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Interim SMC — occasions, procedure and validity", "cross_family": true }, { "answer_id": "ISM-SMC-B-001", "score": 0.6214314103126526, "sibling_score": 0.6214314103126526, "answer_score": 0.36557529270648953, "sibling_qid": "KOC-2023-10-0228-Q011", "sibling_text": "ism code smc and doc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "SMC — purpose, contents, issue and validity", "cross_family": true }, { "answer_id": "ISM-ELEM-002", "score": 0.5521132349967957, "sibling_score": 0.5521132349967957, "answer_score": 0.33249059468507763, "sibling_qid": "MUM-2026-06-3653-Q001", "sibling_text": "ism code", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the ISM Code?", "cross_family": true } ] }, { "qid": "KOL-2018-08-0209-Q007", "text": "Diff between cyl lube oil & crankcase oil... Tbn... Its very difficult to satisfy paul... And he goes in very basics", "family": "NDT & Material Testing", "subtopic": "TAN / TBN", "tid": "KOL-2018-08-0209", "tray": "review", "candidates": [ { "answer_id": "LO-TEST-P01-004", "score": 0.6578596234321594, "sibling_score": 0.6578596234321594, "answer_score": null, "sibling_qid": "KOL-2023-12-1767-Q002", "sibling_text": "properties of lub oil and cross questions tbn of 4 stroke crankcase engine", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "TBN, BN, TAN, SAN and the SAE grade", "cross_family": true }, { "answer_id": "SYN-LUBE-001", "score": 0.64848792552948, "sibling_score": 0.64848792552948, "answer_score": 0.4961344629526138, "sibling_qid": "KOC-2021-07-0920-Q004", "sibling_text": "how lube oil is produced what is synthetic lube what type of oil is cyl oil lube", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "SL-001 – What synthetic lube oil is, how it is made, and its base stocks", "cross_family": true }, { "answer_id": "CYL-LUB-B-002", "score": 0.6449389457702637, "sibling_score": 0.6449389457702637, "answer_score": 0.5291473448276519, "sibling_qid": "KOL-2020-02-1517-Q010", "sibling_text": "cylinder lubrication type cyl lub oil properties and additives", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Cylinder oil — required properties; can any oil be used?", "cross_family": true } ] }, { "qid": "KOL-2018-08-0212-Q001", "text": "Additional safety for bulk carrier", "family": "Cargo Ops - Bulk Carriers", "subtopic": "IMSBC / TML", "tid": "KOL-2018-08-0212", "tray": "review", "candidates": [ { "answer_id": "SOLAS12-BC-B-001", "score": 0.8330825567245483, "sibling_score": 0.8330825567245483, "answer_score": null, "sibling_qid": "MUM-2026-06-3436-Q003", "sibling_text": "additional safety measures in bulk carrier", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Additional safety measures for bulk carriers (SOLAS Chapter XII)", "cross_family": false }, { "answer_id": "BC-IMSBC-001", "score": 0.8195458650588989, "sibling_score": 0.8195458650588989, "answer_score": null, "sibling_qid": "MUM-2026-06-3541-Q003", "sibling_text": "what additional safety of bulk carrier", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "1. Bulk carrier safety requirements — SOLAS Chapter XII and recent additions", "cross_family": false }, { "answer_id": "SOLAS-CH-013", "score": 0.6079933166503906, "sibling_score": null, "answer_score": 0.6079933166503906, "sibling_qid": "", "sibling_text": "solas chapter xii additional safety measures for bulk carriers", "sibling_family": "", "via": "answer_title", "answer_title": "SOLAS Chapter XII - additional safety measures for bulk carriers", "cross_family": false } ] }, { "qid": "KOL-2018-08-0213-Q001", "text": "Radius of Gyration?? How to calculate. Relation with Time Period and how to alter??", "family": "", "subtopic": "Static / Dynamic Stability", "tid": "KOL-2018-08-0213", "tray": "review", "candidates": [ { "answer_id": "BK-002", "score": 0.6539322137832642, "sibling_score": 0.6539322137832642, "answer_score": 0.38236514776945113, "sibling_qid": "KOC-2026-02-0804-Q009", "sibling_text": "relation between radius of gyration and time period", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "How does a bilge keel reduce rolling, and how does it relate to roll period and radius of gyration?", "cross_family": false }, { "answer_id": "BK-004", "score": 0.5536932945251465, "sibling_score": 0.5536932945251465, "answer_score": null, "sibling_qid": "KOC-2025-07-0633-Q019", "sibling_text": "how its connected radius of gyration", "sibling_family": "", "via": "sibling", "answer_title": "How is a bilge keel attached to the hull, and how is hull cracking or rupture controlled?", "cross_family": false }, { "answer_id": "BK-001", "score": 0.5361244678497314, "sibling_score": 0.5361244678497314, "answer_score": null, "sibling_qid": "KOC-2026-03-0878-Q015", "sibling_text": "raduis of gyration", "sibling_family": "", "via": "sibling", "answer_title": "What is a bilge keel and what is its purpose?", "cross_family": false } ] }, { "qid": "KOL-2018-08-0213-Q002", "text": "Static & Dynamic stability. Angle of Loll. Intact stability . Criteria?? Reserve dynamic stability and relation with Wind Heeling Moment??", "family": "SOLAS", "subtopic": "Angle of Loll / Stiff & Tender", "tid": "KOL-2018-08-0213", "tray": "review", "candidates": [ { "answer_id": "LOLL-P02-004", "score": 0.7129158973693848, "sibling_score": 0.7129158973693848, "answer_score": null, "sibling_qid": "KOC-2023-10-0238-Q003", "sibling_text": "static stability curve showing angle of loll", "sibling_family": "", "via": "sibling", "answer_title": "3. Angle of loll on the GZ curve — the GM condition", "cross_family": false }, { "answer_id": "STAB-GZ-P04-001", "score": 0.6865212321281433, "sibling_score": 0.6865212321281433, "answer_score": 0.5700443476438523, "sibling_qid": "KOC-2025-02-0542-Q003", "sibling_text": "explain intact stability and dynamic stability criteria whats righting lever gz value in intact stabity criteria", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Dynamic stability — the area under the GZ curve", "cross_family": false }, { "answer_id": "STAB-GZ-P04-003", "score": 0.6830116510391235, "sibling_score": 0.6830116510391235, "answer_score": null, "sibling_qid": "KOC-2024-04-0333-Q006", "sibling_text": "what is righting lever angle of vanishing stability angle of loll", "sibling_family": "", "via": "sibling", "answer_title": "Negative GM and the angle of loll", "cross_family": false } ] }, { "qid": "KOL-2018-08-1400-Q009", "text": "Hair line crack in pin BRG of generator,no spares onboard", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Decarb Checks / Connecting Rod / Bottom End Bearing", "tid": "KOL-2018-08-1400", "tray": "new", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.5728996396064758, "sibling_score": 0.5728996396064758, "answer_score": null, "sibling_qid": "KOL-2018-03-3132-Q002", "sibling_text": "a e conrod bolt scratch mark no spare on board how will you rectify", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "CRKPIN-P02-003", "score": 0.5446884632110596, "sibling_score": 0.5446884632110596, "answer_score": 0.4921198010444641, "sibling_qid": "KOL-2021-05-3405-Q001", "sibling_text": "crank pin damaged beyond repair action", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankpin or bearing beyond repair / no spare — casualty action", "cross_family": true }, { "answer_id": "AE-MB-004", "score": 0.5417366027832031, "sibling_score": 0.5417366027832031, "answer_score": null, "sibling_qid": "MUM-2024-07-1084-Q010", "sibling_text": "generator main bearing clearance without opening", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Checking AE main-bearing clearance without opening the bearing", "cross_family": false } ] }, { "qid": "KOL-2018-08-1401-Q002", "text": "Expansion vv pr. before and after which is more and why .how cooling takes place after expansion...meat room and veg room temp. Very high what check ull do..reasons?", "family": "Refrigeration & AC", "subtopic": "Thermostatic Valve", "tid": "KOL-2018-08-1401", "tray": "review", "candidates": [ { "answer_id": "TEV-TXV-008", "score": 0.7158042788505554, "sibling_score": 0.7158042788505554, "answer_score": null, "sibling_qid": "KOL-2020-12-3368-Q003", "sibling_text": "refrigeration plant veg room provisions are being taken so it ll have more refrigerant flowing through it how the other rooms are maintained in their respective temperatures", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Maintaining different room temperatures off one plant", "cross_family": false }, { "answer_id": "REF-CYC-011", "score": 0.6815876960754395, "sibling_score": 0.6815876960754395, "answer_score": null, "sibling_qid": "KOC-2022-05-1786-Q006", "sibling_text": "how meat room is getting cooled what s happening in evaporator", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "The evaporator — what it does and how it cools the provision room", "cross_family": false }, { "answer_id": "REFR-FLT-001", "score": 0.642220675945282, "sibling_score": 0.642220675945282, "answer_score": null, "sibling_qid": "KOL-2020-12-3367-Q002", "sibling_text": "meat room temperature not coming down 3eng said tev working fine reasons ur action", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Provision/cold room temperature: will not pull down, runs too low, or will not hold", "cross_family": false } ] }, { "qid": "KOL-2018-08-1403-Q005", "text": "Which pin Dia is bigger in engine.", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft / Crankpin", "tid": "KOL-2018-08-1403", "tray": "new", "candidates": [ { "answer_id": "XHEAD-303-003", "score": 0.642988920211792, "sibling_score": 0.642988920211792, "answer_score": 0.48404700756073, "sibling_qid": "KOL-2018-08-0209-Q006", "sibling_text": "crosshead pin dia why bigger", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead pin and bearing design, ovality and diameter checks, modern shell design", "cross_family": true }, { "answer_id": "XHD-BRG-C-004", "score": 0.5907052159309387, "sibling_score": 0.5907052159309387, "answer_score": null, "sibling_qid": "KOL-2026-02-2039-Q005", "sibling_text": "forgot cross by internal lubrication in 2stroke engines why xhd pin of bigger diameter", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "D. Crosshead and guide-shoe lubrication: oil path, the no-load-reversal film problem, MAN vs Sulzer", "cross_family": true }, { "answer_id": "CRKPIN-P02-002", "score": 0.5800983309745789, "sibling_score": 0.5800983309745789, "answer_score": null, "sibling_qid": "KOL-2020-06-3340-Q002", "sibling_text": "u have 4 inch and 8 inch crank pin were u will measure the clearance", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankpin bearing clearance — measurement and interpretation", "cross_family": false } ] }, { "qid": "KOL-2018-08-1405-Q001", "text": "Engine type (m/e&a/e) Different bet two fuel pump.", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOL-2018-08-1405", "tray": "review", "candidates": [ { "answer_id": "AEFP-471-006", "score": 0.6953967809677124, "sibling_score": 0.6953967809677124, "answer_score": 0.5551194071769714, "sibling_qid": "MUM-2026-07-3773-Q008", "sibling_text": "difference between me and ae fuel pumps", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "What is the difference between main-engine and auxiliary-engine fuel pumps?", "cross_family": true }, { "answer_id": "FIS-221-004", "score": 0.6886951327323914, "sibling_score": 0.6886951327323914, "answer_score": null, "sibling_qid": "MUM-2025-05-0273-Q008", "sibling_text": "difference between conventional fuel pump and me engine fuel pump", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Conventional versus ME / electronically controlled injection", "cross_family": true }, { "answer_id": "FP-OVHL-006", "score": 0.6780233383178711, "sibling_score": 0.6780233383178711, "answer_score": 0.5510811865329742, "sibling_qid": "MUM-2025-12-0615-Q006", "sibling_text": "mc engine and mcc engine fuel pump construction difference", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Main-engine fuel pump — construction, working, VIT, reversing, MC vs ME-C", "cross_family": true } ] }, { "qid": "KOL-2018-08-1409-Q006", "text": "In drydock what are checks and inspection in steering gear and rudder", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2018-08-1409", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.8338748812675476, "sibling_score": 0.8338748812675476, "answer_score": 0.5668501377105712, "sibling_qid": "KOL-2018-01-3122-Q003", "sibling_text": "rudder and steering gear inspection in drydock", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "DUS-P5-05", "score": 0.6044357448816299, "sibling_score": null, "answer_score": 0.6044357448816299, "sibling_qid": "", "sibling_text": "rudder checks and rudder blade tightness leak test in drydock visual checks coating condition cavitation erosion on the blade leading edge propeller side face sacrificial anodes against the approved cathodic protection plan grounding continuity against the approved acceptance criterion plate and weld cracks pintle clearance measured with feeler the numerical acceptance limit is class specific and ", "sibling_family": "", "via": "answer_title", "answer_title": "Rudder checks and rudder-blade tightness/leak test in drydock", "cross_family": false }, { "answer_id": "STEER-055-A-005", "score": 0.5843076676130294, "sibling_score": null, "answer_score": 0.5843076676130294, "sibling_qid": "", "sibling_text": "checks clearances trials and steering room duties routine 2 e checks reservoir oil levels leaks motor pump heat noise vibration rudder follows helm both ways without hunting rai agrees with the actual rudder alarms healthy confined water critical transit run both power units redundancy test before entry no maintenance standby manning comms with the bridge confirmed", "sibling_family": "", "via": "answer_title", "answer_title": "Checks, clearances, trials and steering-room duties", "cross_family": false } ] }, { "qid": "KOL-2018-08-1409-Q010", "text": "turbocharger clearances and draw and show where all", "family": "Turbocharger", "subtopic": "TC Clearances / Inspection", "tid": "KOL-2018-08-1409", "tray": "review", "candidates": [ { "answer_id": "TC-KLM-330-001", "score": 0.7140502333641052, "sibling_score": 0.7140502333641052, "answer_score": 0.5268424391746521, "sibling_qid": "KOL-2026-05-4242-Q004", "sibling_text": "all clearances in turbo charger", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "What are turbocharger K, L and M clearances, and how is each one derived?", "cross_family": false }, { "answer_id": "SHRD-440-002", "score": 0.7072206139564514, "sibling_score": 0.7072206139564514, "answer_score": null, "sibling_qid": "MUM-2026-09-3878-Q008", "sibling_text": "clearances to be measured in turbocharger of me", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "How is shroud ring clearance checked — access point and procedure?", "cross_family": false }, { "answer_id": "TC-CS-P01-006", "score": 0.6837169528007507, "sibling_score": 0.6837169528007507, "answer_score": 0.49077827036380767, "sibling_qid": "KOC-2025-05-1915-Q002", "sibling_text": "ae turbocharger overhaul how to take clearnce k l m", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "F·Turbocharger overhaul and clearances (ME and AE)", "cross_family": false } ] }, { "qid": "KOL-2018-08-1410-Q001", "text": "What is waste steam piston? Why provided? What is floating ring? Why provided? Draw diagram", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2018-08-1410", "tray": "new", "candidates": [ { "answer_id": "PIST-CSI-A-002", "score": 0.5647646188735962, "sibling_score": 0.5647646188735962, "answer_score": null, "sibling_qid": "KOC-2023-07-2040-Q006", "sibling_text": "piston diagram show o rings", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "2-stroke piston: parts, cooling arrangement and operating stresses", "cross_family": true }, { "answer_id": "PST-CSI-BF-001", "score": 0.5528895854949951, "sibling_score": 0.5528895854949951, "answer_score": null, "sibling_qid": "KOC-2022-09-0921-Q007", "sibling_text": "piston diagram and materials", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Cross-section of a two-stroke piston — parts, bolting, sealing, materials", "cross_family": true }, { "answer_id": "HSAP-583-A-003", "score": 0.5339721441268921, "sibling_score": 0.5339721441268921, "answer_score": null, "sibling_qid": "KOC-2024-01-0987-Q007", "sibling_text": "draw helleshaw pump how floating ring is operated", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Hele-Shaw: how variable delivery, flow rate and direction are controlled", "cross_family": true } ] }, { "qid": "KOL-2018-08-1411-Q004", "text": "Ovality of connecting rod ...rest not able to remember right now", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Connecting Rod & Bolts", "tid": "KOL-2018-08-1411", "tray": "review", "candidates": [ { "answer_id": "CRB-001", "score": 0.8055710196495056, "sibling_score": 0.8055710196495056, "answer_score": null, "sibling_qid": "CHE-2026-09-3901-Q010", "sibling_text": "connecting rod ovality", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What checks are carried out on the connecting rod at decarbonisation? Explain the ovality and trueness checks — how many readings, at which positions, with what instrument, and the permissible limit.", "cross_family": false }, { "answer_id": "AECR-651-002", "score": 0.7886192798614502, "sibling_score": 0.7886192798614502, "answer_score": null, "sibling_qid": "CHE-2025-08-0201-Q015", "sibling_text": "ae connecting rod checks ovality", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you take the ovality of the AE big end in a 4-stroke, and what are the ovality limits and maximum value?", "cross_family": false }, { "answer_id": "XHEAD-303-003", "score": 0.7581799626350403, "sibling_score": 0.7581799626350403, "answer_score": null, "sibling_qid": "KOL-2024-12-3731-Q002", "sibling_text": "connecting rod and crosshead pin ovality in details", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead pin and bearing design, ovality and diameter checks, modern shell design", "cross_family": false } ] }, { "qid": "KOL-2018-08-1412-Q004", "text": "why trunk type boilers are curved at ends.", "family": "Boilers - Construction & Components", "subtopic": "Boiler Shell / Furnace Construction", "tid": "KOL-2018-08-1412", "tray": "review", "candidates": [ { "answer_id": "BLR-DRUM-001", "score": 0.7348582148551941, "sibling_score": 0.7348582148551941, "answer_score": 0.5053129464387893, "sibling_qid": "KOL-2021-04-1583-Q003", "sibling_text": "why boiler ends are curved", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Why boiler drum shells and end plates are curved / cylindrical — and how the stress is distributed", "cross_family": false }, { "answer_id": "BLR-MANHOLE-002", "score": 0.5928558111190796, "sibling_score": 0.5928558111190796, "answer_score": null, "sibling_qid": "MUM-2026-02-1255-Q008", "sibling_text": "why elliptical doors in boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Why is the manhole door elliptical, and which way does the major axis run?", "cross_family": false }, { "answer_id": "BLR-TUBE-P01-003", "score": 0.5793858766555786, "sibling_score": 0.5793858766555786, "answer_score": 0.4468136668205261, "sibling_qid": "KOL-2022-01-1653-Q004", "sibling_text": "why boiler tubes are bend i told him for expansion then he asked in straight tube then i said 12 mm extended for expansion he didn t agree 5", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "02. Thermal expansion arrangements for boiler tubes", "cross_family": false } ] }, { "qid": "KOL-2018-08-1412-Q006", "text": "Draw and explain working of vane pump.", "family": "Pumps - Centrifugal & PD", "subtopic": "Positive Displacement Pump", "tid": "KOL-2018-08-1412", "tray": "review", "candidates": [ { "answer_id": "HSAP-583-A-001", "score": 0.6987290382385254, "sibling_score": 0.6987290382385254, "answer_score": 0.526042354106903, "sibling_qid": "KOC-2022-02-0956-Q010", "sibling_text": "heleshew pump diagram working", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Hele-Shaw pump: construction and working — draw and explain", "cross_family": false }, { "answer_id": "PCD-P01-01", "score": 0.6886110305786133, "sibling_score": 0.6886110305786133, "answer_score": null, "sibling_qid": "CHE-2025-12-0463-Q001", "sibling_text": "draw centrifugal pump impeller and shows the direction how pressure is built up", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Working principle of a centrifugal pump — and why it cannot pump air", "cross_family": false }, { "answer_id": "PPS-622-003", "score": 0.6780092120170593, "sibling_score": 0.6780092120170593, "answer_score": null, "sibling_qid": "KOC-2026-02-2006-Q005", "sibling_text": "vaccum pump drawing", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Explain the working of the water-ring / liquid-ring primer and its diagram. What type of vacuum pump is used?", "cross_family": false } ] }, { "qid": "KOL-2018-08-1414-Q005", "text": "Exhaust tuning system explain how it functions and effects.", "family": "2-Stroke - Exhaust, Valve & Starting Air", "subtopic": "Exhaust Valve & Exhaust System", "tid": "KOL-2018-08-1414", "tray": "review", "candidates": [ { "answer_id": "CPP-SGX-04", "score": 0.6708871126174927, "sibling_score": 0.6708871126174927, "answer_score": 0.5829178541898727, "sibling_qid": "KOL-2021-08-1620-Q004", "sibling_text": "tuned exhaust system in engine i dont know anything about this but something related to scavanging and exhausting", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Tuned exhaust system", "cross_family": true }, { "answer_id": "EXHV-P01-003", "score": 0.6699079275131226, "sibling_score": 0.6699079275131226, "answer_score": null, "sibling_qid": "KOL-2019-10-1489-Q002", "sibling_text": "detuning of exhaust valve", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Construction, seat geometry and overhaul checks", "cross_family": false }, { "answer_id": "EXHV-080-BF37-001", "score": 0.6123770475387573, "sibling_score": 0.6123770475387573, "answer_score": null, "sibling_qid": "KOL-2025-11-2025-Q005", "sibling_text": "variable exhaust closing", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "What is variable exhaust valve closing (VEC)? Components and advantages.", "cross_family": false } ] }, { "qid": "KOL-2018-08-1415-Q002", "text": "Fuel oil circulation through fuel injector", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Injector", "tid": "KOL-2018-08-1415", "tray": "review", "candidates": [ { "answer_id": "FINJ-003", "score": 0.7288975715637207, "sibling_score": 0.7288975715637207, "answer_score": null, "sibling_qid": "KOL-2018-10-1423-Q009", "sibling_text": "how recirculation at stand by engine through injector then draw the slide vv in injector where seat fitted how oil passing", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Sac volume, zero-sac and the slide-type fuel valve development", "cross_family": false }, { "answer_id": "FHV-006", "score": 0.669925332069397, "sibling_score": 0.669925332069397, "answer_score": 0.5088839948177337, "sibling_qid": "KOC-2026-03-1123-Q006", "sibling_text": "fuel oil treatment before injection x how auto ignition achieved", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "06. Fuel conditioning before injection and effect of inadequate heating", "cross_family": false }, { "answer_id": "CR-248-001", "score": 0.6656879782676697, "sibling_score": 0.6656879782676697, "answer_score": null, "sibling_qid": "KOL-2022-01-1656-Q002", "sibling_text": "common rail fuel oil injection system details and pressure value how the fule quantity is controlled", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "The common rail fuel injection system — layout, working sequence, rail valves, timing & quantity control", "cross_family": false } ] }, { "qid": "KOL-2018-08-1415-Q005", "text": "Arrangement for quick lifting and quick closing of safety valve", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2018-08-1415", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.6776025295257568, "sibling_score": 0.6776025295257568, "answer_score": null, "sibling_qid": "MUM-2026-07-3737-Q004", "sibling_text": "boiler type safety valve type lift of safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.6529402136802673, "sibling_score": 0.6529402136802673, "answer_score": null, "sibling_qid": "MUM-2026-02-1255-Q006", "sibling_text": "setting of safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "QCV-001", "score": 0.652370274066925, "sibling_score": 0.652370274066925, "answer_score": null, "sibling_qid": "MUM-2026-05-3265-Q002", "sibling_text": "quick closing valve mechanism", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Quick closing valve — construction and what it is", "cross_family": true } ] }, { "qid": "KOL-2018-08-1416-Q002", "text": "Type of ships u have done and type of engine worked on. VIT,purpose. Vit rack,fuel rack and pressure index. Graph and details.", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "KOL-2018-08-1416", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.6801131367683411, "sibling_score": 0.6801131367683411, "answer_score": null, "sibling_qid": "CHE-2026-04-0373-Q001S6", "sibling_text": "type of ship specification of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.6625342965126038, "sibling_score": 0.6625342965126038, "answer_score": null, "sibling_qid": "MUM-2026-03-2606-Q001", "sibling_text": "type of engine and ship major maintenance done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "AC-VE-001", "score": 0.6482292413711548, "sibling_score": 0.6482292413711548, "answer_score": null, "sibling_qid": "MUM-2026-01-2904-Q001", "sibling_text": "what type of ship engine power and nomenclature", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Volumetric efficiency: define it, and if it drops how do you improve it (with bumping clearance)?", "cross_family": false } ] }, { "qid": "KOL-2018-08-1861-Q007", "text": "Major work done on board by your own hand,i told him..removal or bottom end bearing then he told now you tell me removal of complete main bearing of main engine.plenty times tried to confuse me..and plenty cross questions ..", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Main Bearing", "tid": "KOL-2018-08-1861", "tray": "review", "candidates": [ { "answer_id": "MN-BRG-C-003", "score": 0.7877500057220459, "sibling_score": 0.7877500057220459, "answer_score": null, "sibling_qid": "KOC-2024-07-1848-Q001", "sibling_text": "main bearing overhaul remove lub oil pipe over bearing cover to check the clearance i forgot to mention that and he got angered", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main bearing clearance and wear-down: measuring and interpreting", "cross_family": false }, { "answer_id": "MN-BRG-C-001", "score": 0.7832958698272705, "sibling_score": 0.7832958698272705, "answer_score": 0.5228611141443252, "sibling_qid": "MUM-2026-03-2588-Q003S2", "sibling_text": "main bearing top half was removed how will you proceed with removing bottom half explained him full procedure he was very particular about where to fix cross bar and jack and dial gauge and removal wire for bearing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Opening, removing and overhauling a main bearing", "cross_family": false }, { "answer_id": "BEB-A-001", "score": 0.7430577874183655, "sibling_score": 0.7430577874183655, "answer_score": 0.5581559002399444, "sibling_qid": "KOL-2023-03-3596-Q006", "sibling_text": "explain main engine bottom end bearing removal process in details", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Removing, overhauling, inspecting and refitting the bottom end bearing", "cross_family": false } ] }, { "qid": "KOL-2018-08-2216-Q002", "text": "O2 analyzer", "family": "Gas Detection & Instruments", "subtopic": "Explosimeter / Gas Detector", "tid": "KOL-2018-08-2216", "tray": "new", "candidates": [ { "answer_id": "COT-P02-08", "score": 0.5628259181976318, "sibling_score": 0.5628259181976318, "answer_score": 0.39906948208808896, "sibling_qid": "CHE-2023-04-0004-Q002", "sibling_text": "o2 analyser working", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Explain the working principle, sampling arrangement, calibration and failure response of the inert-gas oxygen analyser.", "cross_family": true }, { "answer_id": "IGAT-583-001", "score": 0.480002224445343, "sibling_score": 0.480002224445343, "answer_score": null, "sibling_qid": "KOL-2021-10-0570-Q001", "sibling_text": "ig alarms and trip o2 analyzer", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "State all the alarms, trips and safety cut-outs provided on a tanker inert gas (IG) system.", "cross_family": true }, { "answer_id": "ESE-P01-006", "score": 0.4558935761451721, "sibling_score": 0.4558935761451721, "answer_score": null, "sibling_qid": "KOL-2021-07-0519-Q002", "sibling_text": "as2 e what will be the next step after ventilation in enclosed space i have check oxygen content then he said how to check i started working principle of o2 analyser he said not that", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "Permit, SMS, permission and in-charge control for entry", "cross_family": true } ] }, { "qid": "KOL-2018-08-3166-Q001", "text": "Checks on bottom end bolt.", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Connecting Rod & Bolts", "tid": "KOL-2018-08-3166", "tray": "review", "candidates": [ { "answer_id": "CRB-002", "score": 0.7085210084915161, "sibling_score": 0.7085210084915161, "answer_score": 0.49632784724235535, "sibling_qid": "CHE-2025-11-0221-Q004", "sibling_text": "checks on conrod bolts", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What checks and tests are carried out on connecting rod bolts? Why NDT, why check elongation, what is the maximum limit, and which section tends to shear off?", "cross_family": false }, { "answer_id": "CRB-012", "score": 0.6483989357948303, "sibling_score": 0.6483989357948303, "answer_score": 0.4814006268978119, "sibling_qid": "KOL-2020-03-3980-Q002", "sibling_text": "scoring on conrod bottom end bolts action", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "You find scoring on the connecting rod bottom-end bolts. What action do you take?", "cross_family": false }, { "answer_id": "BEB-B-001", "score": 0.6259434819221497, "sibling_score": 0.6259434819221497, "answer_score": null, "sibling_qid": "KOL-2022-01-3508-Q002", "sibling_text": "bottom end bearing important checks and survey", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bottom End Bearing — Survey & Inspection", "cross_family": false } ] }, { "qid": "KOL-2018-08-3166-Q004", "text": "Cylinder head stud is loose ..how will u tight?.", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Cover / Head", "tid": "KOL-2018-08-3166", "tray": "review", "candidates": [ { "answer_id": "METAL-LOCK-003", "score": 0.6706926226615906, "sibling_score": 0.6706926226615906, "answer_score": null, "sibling_qid": "MUM-2026-06-3566-Q007", "sibling_text": "how to repair cylinder head i told metal lock next question metal lock", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Cold repair of cracked cast-iron parts: liner, pump/valve cage, loose bearing seat", "cross_family": false }, { "answer_id": "PRE-TEN-004", "score": 0.6286425590515137, "sibling_score": 0.6286425590515137, "answer_score": 0.5396857500076294, "sibling_qid": "CHE-2026-02-0474-Q004", "sibling_text": "how will you tighten the hydraulic bolts of the main engine cylinder head", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Tightening cylinder-head hydraulic bolts or nuts without a torque wrench", "cross_family": true }, { "answer_id": "BBR-001", "score": 0.6280446648597717, "sibling_score": 0.6280446648597717, "answer_score": null, "sibling_qid": "CHE-2026-08-3893-Q008", "sibling_text": "broken cylinder head stud how will u remove", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "How do you extract a broken or sheared stud/bolt from machinery or structure?", "cross_family": true } ] }, { "qid": "KOL-2018-08-3167-Q005", "text": "Boiler corrugated furnace gauging procedure in front of surveyor.", "family": "Boilers - Construction & Components", "subtopic": "Boiler Shell / Furnace Construction", "tid": "KOL-2018-08-3167", "tray": "new", "candidates": [ { "answer_id": "BLR-GG-005", "score": 0.619337260723114, "sibling_score": 0.619337260723114, "answer_score": 0.4708865910768509, "sibling_qid": "MUM-2025-05-2291-Q001", "sibling_text": "during boiler survey what will you check in a gauge glass", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "What checks are made on a gauge glass during boiler survey?", "cross_family": false }, { "answer_id": "FURN-REF-003", "score": 0.6008304357528687, "sibling_score": 0.6008304357528687, "answer_score": null, "sibling_qid": "KOL-2023-02-3592-Q003", "sibling_text": "boiler furnace survey", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Boiler refractory purpose, defects, failure reasons, maintenance and survey", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.5826197862625122, "sibling_score": 0.5826197862625122, "answer_score": null, "sibling_qid": "KOL-2021-07-1602-Q009", "sibling_text": "survey preparation of boiler", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": true } ] }, { "qid": "KOL-2018-08-3168-Q003", "text": "Boiler d comissioning", "family": "Boilers - Operations & Firing", "subtopic": "Boiler Cooling Down", "tid": "KOL-2018-08-3168", "tray": "review", "candidates": [ { "answer_id": "BLR-OPS-002", "score": 0.727655827999115, "sibling_score": 0.727655827999115, "answer_score": 0.5060950458049774, "sibling_qid": "KOL-2022-07-3555-Q009", "sibling_text": "boiler commissioned after 1 year ran for 24 hours what you will check", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler started from cold and running: what checks do you carry out as Second Engineer?", "cross_family": false }, { "answer_id": "ACC-603-001", "score": 0.6715492010116577, "sibling_score": 0.6715492010116577, "answer_score": null, "sibling_qid": "KOL-2017-10-1329-Q003", "sibling_text": "boiler automatic combustion start procedure step by step", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "The automatic combustion control system — how it works, the start sequence, and the emergency arrangement", "cross_family": false }, { "answer_id": "BFEYE-340-003", "score": 0.6673378944396973, "sibling_score": 0.6673378944396973, "answer_score": null, "sibling_qid": "KOL-2018-01-1344-Q004", "sibling_text": "boiler combustion system how flame established etc", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler firing / ignition sequence: pilot burner, primary and secondary flame, ignition transformer", "cross_family": false } ] }, { "qid": "KOL-2018-08-3168-Q006", "text": "Fwg complete .. how brine ejected how many ejectors.. vac is lowered how to rectify nd checks", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "KOL-2018-08-3168", "tray": "new", "candidates": [ { "answer_id": "VENT-HD-006", "score": 0.5104633569717407, "sibling_score": 0.5104633569717407, "answer_score": null, "sibling_qid": "MUM-2026-04-2686-Q004", "sibling_text": "fluctuation of gauges high outlet pressure at the discharge remove k liye pump down and then with the help of recovery bottle or imo vacuum pump will do it 2 3times", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Tank vent / air-pipe arrangement, and why tanks require ventilation", "cross_family": true }, { "answer_id": "FWG-RO-001", "score": 0.48709583282470703, "sibling_score": 0.48709583282470703, "answer_score": 0.4384452998638153, "sibling_qid": "MUM-2026-07-3709-Q006", "sibling_text": "fresh water generator not getting vacuum why any 6 reasons", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "How is vacuum created in the FWG, why does it run under vacuum, and what if the vacuum will not come?", "cross_family": false }, { "answer_id": "VAC-COND-002", "score": 0.4831797480583191, "sibling_score": 0.4831797480583191, "answer_score": null, "sibling_qid": "KOL-2026-07-4255-Q006", "sibling_text": "fresh water generator not getting vaccum why any 6 reasons", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Low vacuum, suction loss and failure to build vacuum — the reasons", "cross_family": false } ] }, { "qid": "KOL-2018-08-3169-Q003", "text": "FWG distillate pump suction lost,reasons and action.", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "KOL-2018-08-3169", "tray": "new", "candidates": [ { "answer_id": "VAC-COND-002", "score": 0.6102762818336487, "sibling_score": 0.6102762818336487, "answer_score": 0.5032792448997497, "sibling_qid": "MUM-2026-07-3769-Q011", "sibling_text": "vacuum condenser loosed suction reason", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Low vacuum, suction loss and failure to build vacuum — the reasons", "cross_family": false }, { "answer_id": "PPS-622-004", "score": 0.6076006889343262, "sibling_score": 0.6076006889343262, "answer_score": 0.4775075078010559, "sibling_qid": "CHE-2026-08-3890-Q004", "sibling_text": "bilge reciprocating pump loses suction reasons", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "The bilge or ballast pump is not taking suction — reasons, how to identify the problem, how to rectify it. What does the suction gauge read, and what is suction head?", "cross_family": true }, { "answer_id": "PCD-P05-04", "score": 0.5976361036300659, "sibling_score": 0.5976361036300659, "answer_score": null, "sibling_qid": "KOC-2026-08-2161-Q004", "sibling_text": "gear pump not taking suction reason", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Gear pump not developing pressure or not discharging — reasons and rectification", "cross_family": true } ] }, { "qid": "KOL-2018-08-3169-Q011", "text": "Easing great why provided and working", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2018-08-3169", "tray": "new", "candidates": [ { "answer_id": "ISM-2E-A-004", "score": 0.40200474858283997, "sibling_score": 0.40200474858283997, "answer_score": null, "sibling_qid": "KOC-2025-03-0931-Q017", "sibling_text": "works done as 3e", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Shipboard jobs, machineries and maintenance areas under the Second Engineer", "cross_family": true }, { "answer_id": "INCL-EXP-B-001", "score": 0.36735156178474426, "sibling_score": 0.36735156178474426, "answer_score": null, "sibling_qid": "MUM-2026-04-0915-Q001S4", "sibling_text": "inclining exp why done", "sibling_family": "", "via": "sibling", "answer_title": "B1. Purpose and outputs of an inclining experiment", "cross_family": false }, { "answer_id": "BK-001", "score": 0.36311858892440796, "sibling_score": 0.36311858892440796, "answer_score": null, "sibling_qid": "KOC-2025-07-0633-Q017", "sibling_text": "how its reducing rolling", "sibling_family": "", "via": "sibling", "answer_title": "What is a bilge keel and what is its purpose?", "cross_family": false } ] }, { "qid": "KOL-2018-08-3169-Q014", "text": "Air compressor, bursting disc connection, why provided All question was full of cross question Got mep. Samrendra Singh:", "family": "Air Compressor", "subtopic": "Compressor Relief Valve", "tid": "KOL-2018-08-3169", "tray": "review", "candidates": [ { "answer_id": "ICAC-299-008", "score": 0.7234048843383789, "sibling_score": 0.7234048843383789, "answer_score": 0.5816880881786346, "sibling_qid": "KOL-2026-04-3953-Q004", "sibling_text": "air compressor intercooler bursting disc ruptured reasons", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Bursting disc gives way: running the compressor safely", "cross_family": false }, { "answer_id": "ACSS-002", "score": 0.6979479193687439, "sibling_score": 0.6979479193687439, "answer_score": null, "sibling_qid": "KOL-2017-01-1840-Q004", "sibling_text": "what are the safeties of the main air compressor what is the material of the bursting disc", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Relief / safety valves: settings, testing, lifting reasons; bursting disc", "cross_family": false }, { "answer_id": "AC-STAGE-001", "score": 0.6788620948791504, "sibling_score": 0.6788620948791504, "answer_score": null, "sibling_qid": "KOL-2017-03-3039-Q005", "sibling_text": "air compressor why multi stage why intetcooler why air passes through tubes not in the casing surrounding the tubes of the cooler why bursting disc is given material", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Why multistage compression — advantages over single-stage", "cross_family": false } ] }, { "qid": "KOL-2018-08-3175-Q001", "text": "what will check in crank shaft..2. If slip occurred 2degree what will you do?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft Web / Journal / Shrink Fit", "tid": "KOL-2018-08-3175", "tray": "review", "candidates": [ { "answer_id": "CRANK-217-004", "score": 0.7043446898460388, "sibling_score": 0.7043446898460388, "answer_score": 0.5538882225751877, "sibling_qid": "MUM-2026-02-1258-Q003", "sibling_text": "ce instructs that one crankshaft has slipped your action s as 2e", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankshaft slippage, tell-tale marks and action if found", "cross_family": false }, { "answer_id": "CSD-BF036-005", "score": 0.6374362111091614, "sibling_score": 0.6374362111091614, "answer_score": null, "sibling_qid": "MUM-2023-08-1055-Q001", "sibling_text": "you have crank shaft deflection reading what will you do after that", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "You have the deflection readings — how do you interpret them for bearing condition, and what do you do next?", "cross_family": false }, { "answer_id": "CRK-DEFL-003", "score": 0.6286538243293762, "sibling_score": 0.6286538243293762, "answer_score": null, "sibling_qid": "KOL-2021-03-1582-Q004", "sibling_text": "junior has taken crankshaft deflection one unit readings are more wat will you do as 2e", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Verifying deflection readings taken by others", "cross_family": false } ] }, { "qid": "KOL-2018-08-3176-Q009", "text": "Tong? Clamp meter. ?Why cant we use ammeter in place of clamp meter for measuring current? which part of wire should we connect it and what value shall we get in 3phase winding.", "family": "Gauges & Tools", "subtopic": "Clamp Meter", "tid": "KOL-2018-08-3176", "tray": "review", "candidates": [ { "answer_id": "GMCM-583-A-009", "score": 0.7899006605148315, "sibling_score": 0.7899006605148315, "answer_score": 0.5550149381160736, "sibling_qid": "KOL-2018-05-3963-Q005", "sibling_text": "tong clamp meter rao why cant we use ammeter in place of clampmeter for measuring current which part of wire should we connect it and what value shall we get in 3phase winding", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "09. The clamp (tong) meter — working principle, types, and why only a single conductor is clamped", "cross_family": true }, { "answer_id": "GMCM-583-A-010", "score": 0.6651546955108643, "sibling_score": 0.6651546955108643, "answer_score": 0.5706017017364502, "sibling_qid": "MUM-2025-07-1561-Q004", "sibling_text": "4 clampmeter a 3 phase ac system having current rating of 100 a if you connect clampmeter how current value it will show", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "10. The clamp meter on a three-phase supply — what you read clamping one, two or all three conductors of a 100 A system", "cross_family": true }, { "answer_id": "PF-D-001", "score": 0.6356341242790222, "sibling_score": 0.6356341242790222, "answer_score": null, "sibling_qid": "KOC-2023-07-1265-Q005", "sibling_text": "if load applied some current will drawing if ammeter not working how will you know calculate current", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "How kW, kVA, kVAR, current and the power triangle relate to power factor", "cross_family": true } ] }, { "qid": "KOL-2018-08-3179-Q002", "text": "Boiler safety valve setting procedure", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2018-08-3179", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-001", "score": 0.8561996221542358, "sibling_score": 0.8561996221542358, "answer_score": null, "sibling_qid": "KOC-2026-05-0003-Q005", "sibling_text": "boiler safety valve setting procedure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.823993980884552, "sibling_score": 0.823993980884552, "answer_score": null, "sibling_qid": "MUM-2026-03-2935-Q013", "sibling_text": "boiler safety valve setting in presence of surveyor after survey", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.808009684085846, "sibling_score": 0.808009684085846, "answer_score": null, "sibling_qid": "KOC-2026-05-0034-Q010", "sibling_text": "boiler safety valve types and how safety valve is set complete procedures", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOL-2018-08-3181-Q003", "text": "Fwg nt developing rated capacity checks and remedy!", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "KOL-2018-08-3181", "tray": "new", "candidates": [ { "answer_id": "FWG-RO-003", "score": 0.4801260232925415, "sibling_score": 0.4801260232925415, "answer_score": null, "sibling_qid": "CHE-2026-05-0533-Q008", "sibling_text": "checks if fwg not getting production", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "The FWG is not producing enough water or its efficiency has dropped. Reasons, checks and action?", "cross_family": false }, { "answer_id": "CAP-CTRL-004", "score": 0.441631555557251, "sibling_score": 0.441631555557251, "answer_score": 0.3188336208462715, "sibling_qid": "MUM-2025-11-2472-Q005", "sibling_text": "capacity controller not working done with class 2", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "CG-004 · Actions when the capacity control / unloader is not working", "cross_family": true }, { "answer_id": "CCSC-314-002", "score": 0.4344978332519531, "sibling_score": 0.4344978332519531, "answer_score": null, "sibling_qid": "MUM-2024-12-2783-Q010", "sibling_text": "capacity controller working", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Compressor capacity control and the capacity controller", "cross_family": true } ] }, { "qid": "KOL-2018-08-3184-Q002", "text": "Safety valve pressure setting adjustment", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2018-08-3184", "tray": "review", "candidates": [ { "answer_id": "ECON-EGB-004", "score": 0.825874924659729, "sibling_score": 0.825874924659729, "answer_score": 0.6049253612756729, "sibling_qid": "KOL-2026-09-4304-Q003", "sibling_text": "safety valve setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Safety-valve setting after overhaul & why set higher than the boiler", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.8151219487190247, "sibling_score": 0.8151219487190247, "answer_score": null, "sibling_qid": "MUM-2026-02-1255-Q006", "sibling_text": "setting of safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.7692821621894836, "sibling_score": 0.7692821621894836, "answer_score": null, "sibling_qid": "KOL-2026-02-3913-Q004", "sibling_text": "improved high lift safety valve pressure setting 3 above designated set pressure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOL-2018-09-0216-Q005", "text": "Master review in ism.", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOL-2018-09-0216", "tray": "review", "candidates": [ { "answer_id": "ISM-AUD-P02-006", "score": 0.6955499053001404, "sibling_score": 0.6955499053001404, "answer_score": 0.43899049460887907, "sibling_qid": "KOC-2025-12-0772-Q004", "sibling_text": "masters review in ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Master's review, company / management review and change management", "cross_family": false }, { "answer_id": "ISM-ELEM-006", "score": 0.6561402082443237, "sibling_score": 0.6561402082443237, "answer_score": 0.4865177363157272, "sibling_qid": "NOI-2026-09-0024-Q004", "sibling_text": "master review", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Master’s review & management review", "cross_family": false }, { "answer_id": "ISM-AUD-P02-002", "score": 0.6360781788825989, "sibling_score": 0.6360781788825989, "answer_score": null, "sibling_qid": "MUM-2022-09-0044-Q001", "sibling_text": "ism review", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM Code — what it is, purpose, objectives and structure", "cross_family": false } ] }, { "qid": "KOL-2018-09-0217-Q001", "text": "Type of engine and type of vessel.", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "KOL-2018-09-0217", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.817415177822113, "sibling_score": 0.817415177822113, "answer_score": null, "sibling_qid": "CHE-2026-03-0255-Q001", "sibling_text": "type of vessel and engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.7919177412986755, "sibling_score": 0.7919177412986755, "answer_score": null, "sibling_qid": "MUM-2026-07-3668-Q004", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7568316459655762, "sibling_score": 0.7568316459655762, "answer_score": null, "sibling_qid": "KOL-2025-12-2031-Q002", "sibling_text": "type of ship and engine sailed engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "KOL-2018-09-0217-Q007", "text": "Boiler water tube leak.. Symptoms,action,remedies in detail.", "family": "Boilers - Operations & Firing", "subtopic": "Low Water Level", "tid": "KOL-2018-09-0217", "tray": "review", "candidates": [ { "answer_id": "BLR-TUBE-P02-001", "score": 0.7565855979919434, "sibling_score": 0.7565855979919434, "answer_score": 0.621149781346321, "sibling_qid": "KOL-2022-05-3539-Q002", "sibling_text": "boiler water tube leaking indications how to identify which tube and repair", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Identifying a boiler tube leak and finding the leaking tube", "cross_family": true }, { "answer_id": "BLR-TUBE-P02-003", "score": 0.7280126214027405, "sibling_score": 0.7280126214027405, "answer_score": null, "sibling_qid": "KOL-2021-09-3456-Q003", "sibling_text": "boiler tube leaking explain about the repair procedure", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Repairing, removing and renewing a boiler tube; Class formalities", "cross_family": true }, { "answer_id": "BLR-TUBE-P02-002", "score": 0.7166002988815308, "sibling_score": 0.7166002988815308, "answer_score": 0.5935403108596802, "sibling_qid": "KOL-2022-03-1665-Q008", "sibling_text": "boiler tube leaking what to do tube plugging method", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Plugging a leaking boiler tube (temporary arrest)", "cross_family": true } ] }, { "qid": "KOL-2018-09-0217-Q010", "text": "Boiler safety valve adjustment after boiler survey... Got 3 & 6.", "family": "Boilers - Safety & Survey", "subtopic": "Hydrostatic Test", "tid": "KOL-2018-09-0217", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P01-001", "score": 0.7194914817810059, "sibling_score": 0.7194914817810059, "answer_score": null, "sibling_qid": "MUM-2026-03-2935-Q013", "sibling_text": "boiler safety valve setting in presence of surveyor after survey", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.6705066561698914, "sibling_score": 0.6705066561698914, "answer_score": null, "sibling_qid": "KOL-2026-01-2037-Q003", "sibling_text": "boiler safety valve types full bore and improved high lift and their ratio how will you adjust the lift", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.6687421202659607, "sibling_score": 0.6687421202659607, "answer_score": null, "sibling_qid": "KOC-2026-05-0003-Q005", "sibling_text": "boiler safety valve setting procedure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false } ] }, { "qid": "KOL-2018-09-0218-Q002", "text": "IG alarms and trips", "family": "Tanker - Inert Gas System", "subtopic": "IG Alarms / Trips", "tid": "KOL-2018-09-0218", "tray": "review", "candidates": [ { "answer_id": "IGAT-583-001", "score": 0.7807234525680542, "sibling_score": 0.7807234525680542, "answer_score": 0.4522152543067932, "sibling_qid": "MUM-2026-04-0929-Q002", "sibling_text": "ig alarms and trips", "sibling_family": "Tanker - Inert Gas System", "via": "sibling", "answer_title": "State all the alarms, trips and safety cut-outs provided on a tanker inert gas (IG) system.", "cross_family": false }, { "answer_id": "MR-DS-PV-B-003", "score": 0.45808588862419125, "sibling_score": null, "answer_score": 0.45808588862419125, "sibling_qid": "", "sibling_text": "3 alarms trips valves and abnormal conditions of the deck seal key seal alarm low water level audible and visual fss requirement any low low trip interlock of gas delivery is maker ship sms logic and should be quoted from the approved ig manual a low seal a lost first barrier pressure oxygen instrumentation when ig is being supplied continuously indicate and permanently record the pressure of the ", "sibling_family": "", "via": "answer_title", "answer_title": "3. Alarms, trips, valves, and abnormal conditions of the deck seal", "cross_family": false }, { "answer_id": "IGAT-583-003", "score": 0.43329054713249204, "sibling_score": null, "answer_score": 0.43329054713249204, "sibling_qid": "", "sibling_text": "what are the set values for the ig system alarms and trips ig line high low and low low pressure oxygen content pv valve and breaker pressures statutory fss code ch 15 msc 367 93 oxygen alarm in excess of 5 by volume in the delivered gas 2 2 4 5 1 1 statutory gas pressure alarm less than 100 mm water gauge 2 2 4 5 1 3", "sibling_family": "", "via": "answer_title", "answer_title": "What are the set values for the IG system alarms and trips — IG line high, low and low-low pressure, oxygen content, PV valve and breaker pressures?", "cross_family": false } ] }, { "qid": "KOL-2018-09-0219-Q003", "text": "how stability is related to freeboard of vessel , give relationship.", "family": "SOLAS", "subtopic": "Stability Curves (GZ / KN)", "tid": "KOL-2018-09-0219", "tray": "review", "candidates": [ { "answer_id": "STAB-GZ-P04-004", "score": 0.6969507932662964, "sibling_score": 0.6969507932662964, "answer_score": 0.576269781589508, "sibling_qid": "KOC-2024-07-0356-Q007", "sibling_text": "diagram of stability curve for higher and lower freeboard", "sibling_family": "", "via": "sibling", "answer_title": "Beam, freeboard, GM and the wall-sided curve", "cross_family": false }, { "answer_id": "MARGIN-LINE-004", "score": 0.680137038230896, "sibling_score": 0.680137038230896, "answer_score": null, "sibling_qid": "KOC-2022-09-0099-Q010", "sibling_text": "intact stability damage stability criteria margine line distance from freeboard", "sibling_family": "", "via": "sibling", "answer_title": "Margin line in subdivision, floodable length and stability criteria", "cross_family": false }, { "answer_id": "RES-BUOY-005", "score": 0.6477806568145752, "sibling_score": 0.6477806568145752, "answer_score": 0.5199636936187744, "sibling_qid": "KOC-2023-01-0138-Q001", "sibling_text": "relationship between freeboard and reserve buoyancy", "sibling_family": "", "via": "sibling", "answer_title": "Freeboard and reserve buoyancy — the relationship", "cross_family": false } ] }, { "qid": "KOL-2018-09-0222-Q001", "text": "Structure difference between void and coffer dam", "family": "Ship Construction & Stability", "subtopic": "Cofferdam / Void Space", "tid": "KOL-2018-09-0222", "tray": "new", "candidates": [ { "answer_id": "DBTB-A-001", "score": 0.4898671507835388, "sibling_score": 0.4898671507835388, "answer_score": 0.3990325480699539, "sibling_qid": "CHE-2026-02-0107-Q003", "sibling_text": "double bottom construction", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Double-bottom construction and the structural members fitted", "cross_family": false }, { "answer_id": "KGF-A-001", "score": 0.4778507947921753, "sibling_score": 0.4778507947921753, "answer_score": null, "sibling_qid": "KOC-2025-07-0633-Q006", "sibling_text": "stiffeners location void space purpose", "sibling_family": "", "via": "sibling", "answer_title": "Construction terminology & structural member identification", "cross_family": false }, { "answer_id": "BHD-TYPE-B-002", "score": 0.473673552274704, "sibling_score": 0.473673552274704, "answer_score": null, "sibling_qid": "KOL-2025-11-1120-Q004", "sibling_text": "structural difference between collision bulkhead and transverse bulkhead distance between girders", "sibling_family": "", "via": "sibling", "answer_title": "Collision bulkhead vs ordinary transverse bulkhead — construction and strength", "cross_family": false } ] }, { "qid": "KOL-2018-09-1417-Q002", "text": "Duel fuel engines working principle and advantages of a gas engine", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Bio Fuel / Methanol / Ammonia", "tid": "KOL-2018-09-1417", "tray": "review", "candidates": [ { "answer_id": "MEGI-304-001", "score": 0.6505117416381836, "sibling_score": 0.6505117416381836, "answer_score": 0.6053780436515808, "sibling_qid": "KOL-2026-04-3951-Q004", "sibling_text": "duel fuel engine operation", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "1. Dual-fuel engine — concept, operating principle and why it is used", "cross_family": true }, { "answer_id": "MEGI-304-004", "score": 0.6460279822349548, "sibling_score": 0.6460279822349548, "answer_score": null, "sibling_qid": "KOL-2017-12-3110-Q002", "sibling_text": "why diesel used every stroke in dual fuel engine even when running on gas", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "4. Pilot fuel / pilot injection — purpose and why on every firing in gas mode", "cross_family": true }, { "answer_id": "MEGI-304-003", "score": 0.6252716779708862, "sibling_score": 0.6252716779708862, "answer_score": null, "sibling_qid": "MUM-2023-05-2728-Q002", "sibling_text": "explain duel fuel engine what is dencity of gas injected in engine at what compression ratio", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "3. How LNG / gas is fed, admitted or injected — and at what cycle and compression", "cross_family": true } ] }, { "qid": "KOL-2018-09-1417-Q003", "text": "LNG vaporizer and safeties", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Bio Fuel / Methanol / Ammonia", "tid": "KOL-2018-09-1417", "tray": "new", "candidates": [ { "answer_id": "IGC-GAS-015", "score": 0.6230232119560242, "sibling_score": 0.6230232119560242, "answer_score": 0.4429381281137466, "sibling_qid": "MUM-2026-09-3981-Q014", "sibling_text": "lng tank safeties", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Cargo tank and critical-valve safeties", "cross_family": true }, { "answer_id": "GC-TANK-004", "score": 0.615419864654541, "sibling_score": 0.615419864654541, "answer_score": null, "sibling_qid": "MUM-2026-01-1252-Q005", "sibling_text": "lng gas regarding safeties precautions etc", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Gas-carrier cargo tank construction: materials, insulation, fixing and tank safeties", "cross_family": true }, { "answer_id": "FLGLS-001", "score": 0.6082515120506287, "sibling_score": 0.6082515120506287, "answer_score": null, "sibling_qid": "MUM-2026-02-1268-Q004", "sibling_text": "safeties in fuel line gas line", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "HP fuel pipe — construction, fuel/gas-line safeties and post-removal checks", "cross_family": false } ] }, { "qid": "KOL-2018-09-1418-Q004", "text": "What is boiler priming and foaming and what addatives are added to stop it.", "family": "Boilers - Operations & Firing", "subtopic": "Scum / Blow Down", "tid": "KOL-2018-09-1418", "tray": "new", "candidates": [ { "answer_id": "STG-055-C-001", "score": 0.575915515422821, "sibling_score": 0.575915515422821, "answer_score": null, "sibling_qid": "KOL-2021-06-1593-Q004", "sibling_text": "safematic system cross question 5 boiler priming foaming swelling shrinkage 6 nox reduction techniques", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Safematic steering gear, redundancy and the single-failure criterion", "cross_family": true }, { "answer_id": "BLR-CHEM-003", "score": 0.5744507312774658, "sibling_score": 0.5744507312774658, "answer_score": null, "sibling_qid": "KOL-2019-07-1467-Q004", "sibling_text": "what all chemicals added to reduce the boiler contaminants one more i forgot", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "3. Boiler chemical dosing programme", "cross_family": true }, { "answer_id": "SBD-002", "score": 0.5613387227058411, "sibling_score": 0.5613387227058411, "answer_score": null, "sibling_qid": "KOL-2021-01-0458-Q007", "sibling_text": "boiler blowdown scum blowdown", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "What is scum blow down and bottom blow down — why and when, the valve opening sequence, and what you check afterwards? How do you instruct the junior engineer or TME?", "cross_family": false } ] }, { "qid": "KOL-2018-09-1420-Q006", "text": "Tell me what clearances u measure in mac Now tell me the values In one word why bumping clearance is the in mac...", "family": "Air Compressor", "subtopic": "Reciprocating Compressor", "tid": "KOL-2018-09-1420", "tray": "review", "candidates": [ { "answer_id": "AC-VE-005", "score": 0.6770921349525452, "sibling_score": 0.6770921349525452, "answer_score": null, "sibling_qid": "MUM-2026-06-3415-Q011", "sibling_text": "bumping clearance", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "If bumping clearance is more or less, what happens, and how do you reduce or adjust it?", "cross_family": false }, { "answer_id": "RUN-CLR-002", "score": 0.6274365186691284, "sibling_score": 0.6274365186691284, "answer_score": 0.465452578663826, "sibling_qid": "MUM-2026-06-3470-Q004", "sibling_text": "bumping clearance", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Bumping clearance — what it is, why it matters, effects, and how it is adjusted", "cross_family": true }, { "answer_id": "AC-VE-001", "score": 0.6063647270202637, "sibling_score": 0.6063647270202637, "answer_score": null, "sibling_qid": "KOL-2024-07-1947-Q010", "sibling_text": "define volumetric efficiency if drop what you do 3 methods to adjust bumping clearance", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Volumetric efficiency: define it, and if it drops how do you improve it (with bumping clearance)?", "cross_family": false } ] }, { "qid": "KOL-2018-09-2224-Q003", "text": "Working of oscillator circuit", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Electronic Circuits / Filters", "tid": "KOL-2018-09-2224", "tray": "review", "candidates": [ { "answer_id": "TC-A-009", "score": 0.717628538608551, "sibling_score": 0.717628538608551, "answer_score": 0.46702969670295713, "sibling_qid": "KOC-2024-02-1332-Q004", "sibling_text": "oscillator explain", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "The LC circuit, resonance and the oscillator", "cross_family": false }, { "answer_id": "CYC-599-001", "score": 0.557693600654602, "sibling_score": 0.557693600654602, "answer_score": null, "sibling_qid": "CHE-2026-04-0372-Q006", "sibling_text": "cycloconvertor working", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a cycloconverter and how does it work?", "cross_family": false }, { "answer_id": "CYC-599-002", "score": 0.5538130402565002, "sibling_score": 0.5538130402565002, "answer_score": null, "sibling_qid": "KOL-2017-07-2144-Q005", "sibling_text": "synchro cnvrtr wrkng nd hw frqncy is cntrld", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a synchroconverter, how does it work, how is frequency controlled, and where is it used?", "cross_family": false } ] }, { "qid": "KOL-2018-09-2225-Q003", "text": "HV system, before commencing work what special checklists to be filled? Last one forgot. Got F 5", "family": "Risk & Safety Management", "subtopic": "Permit to Work / Enclosed Space", "tid": "KOL-2018-09-2225", "tray": "new", "candidates": [ { "answer_id": "HV-SYS-P05-002", "score": 0.6262022256851196, "sibling_score": 0.6262022256851196, "answer_score": 0.5177592039108276, "sibling_qid": "KOC-2025-03-1514-Q005", "sibling_text": "safety precautions before hv system maintenance", "sibling_family": "", "via": "sibling", "answer_title": "Working on the HV system: precautions, isolation and earthing before maintenance", "cross_family": false }, { "answer_id": "CB-ACBVCB-B-001", "score": 0.6080322861671448, "sibling_score": 0.6080322861671448, "answer_score": null, "sibling_qid": "MUM-2023-09-1402-Q004", "sibling_text": "hv safety before doing work vcf and sf6", "sibling_family": "", "via": "sibling", "answer_title": "ACB/main circuit breaker safeties, trips, settings and testing", "cross_family": false }, { "answer_id": "DCB-OVH-001", "score": 0.5961335301399231, "sibling_score": 0.5961335301399231, "answer_score": null, "sibling_qid": "KOC-2022-02-1781-Q002", "sibling_text": "me decarb prepartion risk assesment spares check checks for the tool hydraulic jacks check and working", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Preparing for main-engine / unit decarb as 2/E", "cross_family": true } ] }, { "qid": "KOL-2018-09-3187-Q002", "text": "Domestic refrigeration- checks and maintenance", "family": "Refrigeration & AC", "subtopic": "Refrigeration Faults / Checks", "tid": "KOL-2018-09-3187", "tray": "review", "candidates": [ { "answer_id": "REEF-CHG-002", "score": 0.7719441056251526, "sibling_score": 0.7719441056251526, "answer_score": null, "sibling_qid": "MUM-2026-03-2638-Q002", "sibling_text": "regular checks in refrigeration to ensure proper running", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "02Where and how gas and liquid refrigerant are charged into the system", "cross_family": false }, { "answer_id": "REF-CYC-002", "score": 0.7066993713378906, "sibling_score": 0.7066993713378906, "answer_score": null, "sibling_qid": "MUM-2025-05-2293-Q006", "sibling_text": "domestic reefer plant mention all components between condenser and evaporator temp not maintaining in one cold chamber what will you do causes actions", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "2. Refrigeration plant components and their control functions", "cross_family": false }, { "answer_id": "REEF-CHG-001", "score": 0.6980052590370178, "sibling_score": 0.6980052590370178, "answer_score": null, "sibling_qid": "KOL-2022-05-4008-Q005", "sibling_text": "refregerent charging procedure in domestic fridge system", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "01Charging or replenishing the refrigerant in a refrigeration / AC plant", "cross_family": false } ] }, { "qid": "KOL-2018-09-3188-Q001", "text": "Air compressor seized, where all it can seize( piston ring+liner, bottom end bearing, main bearing, attached pump gears) and how to identify(check play for bottom end, scoring marks on liner for piston seizure, open pump covers to ascertain pump gears)", "family": "Air Compressor", "subtopic": "Reciprocating Compressor", "tid": "KOL-2018-09-3188", "tray": "review", "candidates": [ { "answer_id": "MAC-353-008", "score": 0.714716374874115, "sibling_score": 0.714716374874115, "answer_score": null, "sibling_qid": "CHE-2026-04-0506-Q001S4", "sibling_text": "air compressor bumping clearance said lead ball method not accepting it", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Taking bumping clearance without opening the cylinder (lead-ball method)", "cross_family": false }, { "answer_id": "MAC-598-007", "score": 0.691072404384613, "sibling_score": 0.691072404384613, "answer_score": null, "sibling_qid": "MUM-2025-12-2898-Q010", "sibling_text": "main air compressor piston siezed what is the causes", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "The main air compressor piston has seized — what are the causes?", "cross_family": false }, { "answer_id": "REEF-COMP-006", "score": 0.6771422624588013, "sibling_score": 0.6771422624588013, "answer_score": null, "sibling_qid": "KOC-2021-09-1766-Q002", "sibling_text": "refer compressor seal diagram and explain", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Compressor shaft seal (mechanical/rotary seal) — arrangement, lubrication, renewal, leak action", "cross_family": true } ] }, { "qid": "KOL-2018-09-3191-Q003", "text": "boiler taking out of operations for long and short term", "family": "Boilers - 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Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": true }, { "answer_id": "RWX-CHK-001", "score": 0.6539161801338196, "sibling_score": 0.6539161801338196, "answer_score": null, "sibling_qid": "MUM-2026-06-3370-Q003", "sibling_text": "checks on main engine and auxiliary engine after bad weather and cross questions", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Engine-room and machinery checks before and after rough weather", "cross_family": false } ] }, { "qid": "KOL-2018-10-3195-Q004", "text": "repair of Rudder Carrier bearing", "family": "Steering Gear & Hydraulics", "subtopic": "Tiller / Rudder Stock", "tid": "KOL-2018-10-3195", "tray": "review", "candidates": [ { "answer_id": "PRE-TEN-001", "score": 0.780829906463623, "sibling_score": 0.780829906463623, "answer_score": null, "sibling_qid": "MUM-2026-09-3907-Q001", "sibling_text": "rudder carrier bearing replacement in port", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Pre-stressing and pre-tensioning in main-engine bolting", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.7385129332542419, "sibling_score": 0.7385129332542419, "answer_score": 0.47114401459693905, "sibling_qid": "MUM-2026-06-3610-Q003", "sibling_text": "removal of rudder bearing", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "TRS-002", "score": 0.7036489248275757, "sibling_score": 0.7036489248275757, "answer_score": null, "sibling_qid": "KOC-2026-02-1103-Q008", "sibling_text": "how rudder stock and carrier bearing is attached told 2 half fitted bolts x does bearing turn with rudder i told yes then he told that there are 2 types one turn with rudder other dont turn with rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false } ] }, { "qid": "KOL-2018-11-0230-Q003", "text": "Annex 3", "family": "MARPOL - Annex III", "subtopic": "Harmful Substances in Packaged Form", "tid": "KOL-2018-11-0230", "tray": "review", "candidates": [ { "answer_id": "MARPOL-OV-002", "score": 0.7129964232444763, "sibling_score": 0.7129964232444763, "answer_score": null, "sibling_qid": "KOC-2026-02-0798-Q013", "sibling_text": "annex 3 name", "sibling_family": "MARPOL - Annex III", "via": "sibling", "answer_title": "The six annexes and what each covers", "cross_family": false }, { "answer_id": "SEEMP-123-B-001", "score": 0.5821785926818848, "sibling_score": 0.5821785926818848, "answer_score": null, "sibling_qid": "KOC-2026-03-0880-Q002", "sibling_text": "function 3 contents", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SEEMP Part III — the ship's operational carbon-intensity (CII) plan", "cross_family": true }, { "answer_id": "EEDI-B-002", "score": 0.5776451826095581, "sibling_score": 0.5776451826095581, "answer_score": null, "sibling_qid": "KOL-2019-08-0322-Q003", "sibling_text": "3 annex 6 chapt 4 part 1 and part 2", "sibling_family": "MARPOL - 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Give the definition and name some.", "cross_family": true } ] }, { "qid": "KOL-2018-11-2233-Q004", "text": "3 steering gear motor safety, how safeties. Working", "family": "Electrical - Motors & Starters", "subtopic": "Single Phasing", "tid": "KOL-2018-11-2233", "tray": "review", "candidates": [ { "answer_id": "SGM-ELEC-001", "score": 0.7293307781219482, "sibling_score": 0.7293307781219482, "answer_score": 0.5619321882724762, "sibling_qid": "MUM-2025-06-1536-Q001", "sibling_text": "special safeties for steering gear motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What are the safeties, alarms and trips on the steering gear motor as per SOLAS — and how do you activate the safematic?", "cross_family": false }, { "answer_id": "SGM-ELEC-002", "score": 0.7283985018730164, "sibling_score": 0.7283985018730164, "answer_score": null, "sibling_qid": "MUM-2025-10-1709-Q005", "sibling_text": "steering gear motor type safeties", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What type of motor is the steering gear motor, how does it differ from other engine-room motors, and how do you order one?", "cross_family": false }, { "answer_id": "ELEC-SAFE-006", "score": 0.5789468646049499, "sibling_score": null, "answer_score": 0.5789468646049499, "sibling_qid": "", "sibling_text": "steering gear electrical safety and motor insulation essential service duplicated supplies often one from the emergency switchboard motors have short circuit protection and an overload alarm no normal overload trip that would stop steering", "sibling_family": "", "via": "answer_title", "answer_title": "Steering gear electrical safety and motor insulation", "cross_family": false } ] }, { "qid": "KOL-2018-11-2234-Q004", "text": "Emergency power on board as per Solas.", "family": "Electrical - Generator & Alternator", "subtopic": "Emergency DG", "tid": "KOL-2018-11-2234", "tray": "review", "candidates": [ { "answer_id": "EDG-P01-001", "score": 0.7877666354179382, "sibling_score": 0.7877666354179382, "answer_score": 0.5898428052663803, "sibling_qid": "KOL-2025-09-2875-Q007", "sibling_text": "emergency sources of power onboard solas requirements", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Emergency source of power — the SOLAS requirements", "cross_family": false }, { "answer_id": "EMG-DG-P02-FINAL-2-001", "score": 0.7537068128585815, "sibling_score": 0.7537068128585815, "answer_score": null, "sibling_qid": "KOL-2021-07-2471-Q001", "sibling_text": "emergency power onboard", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Emergency generator loads and duration of emergency supply", "cross_family": false }, { "answer_id": "EDG-P01-004", "score": 0.5786162316799164, "sibling_score": null, "answer_score": 0.5786162316799164, "sibling_qid": "", "sibling_text": "emergency generator explain it as a 2nd engineer independent emergency source feeding the emergency switchboard supplies the safety essential loads on loss of main power reg 43 distribution ship typical not a solas figure power loads at the generated voltage commonly 440 v emergency fire pump steering gear emergency air compressor the lighting transformer feed lighting small loads via step down tr", "sibling_family": "", "via": "answer_title", "answer_title": "Emergency generator — explain it as a 2nd Engineer", "cross_family": false } ] }, { "qid": "KOL-2018-11-2237-Q002", "text": "difference bw star delta and soft starter", "family": "Electrical - Motors & Starters", "subtopic": "Star-Delta Starter", "tid": "KOL-2018-11-2237", "tray": "review", "candidates": [ { "answer_id": "SOFTSTART-P03-001", "score": 0.820042610168457, "sibling_score": 0.820042610168457, "answer_score": 0.6332098782062531, "sibling_qid": "KOL-2023-04-2651-Q002", "sibling_text": "difference between star delta starter and soft starter main point is sudden change over in star delta where as gradual change over in soft starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Star-delta starter versus soft starter", "cross_family": false }, { "answer_id": "SOFTSTART-P02-003", "score": 0.5535923957824707, "sibling_score": null, "answer_score": 0.5535923957824707, "sibling_qid": "", "sibling_text": "types of starter and types of soft starter starter families dol full voltage star delta autotransformer korndorfer primary resistance reactor rotor resistance slip ring wound rotor motors only electronic soft starter vfd is a separate class running speed control not merely a softer start", "sibling_family": "", "via": "answer_title", "answer_title": "Types of starter, and types of soft starter", "cross_family": false }, { "answer_id": "SOFTSTART-P03-002", "score": 0.5369405746459961, "sibling_score": null, "answer_score": 0.5369405746459961, "sibling_qid": "", "sibling_text": "dol starter versus soft starter dol full line voltage through a single contactor full starting torque inrush 6 8x flc representative it is the motor s locked rotor current simplest cheapest smallest most reliable hard mechanical and electrical shock each start large volt dip on the board", "sibling_family": "", "via": "answer_title", "answer_title": "DOL starter versus soft starter", "cross_family": false } ] }, { "qid": "KOL-2018-11-2238-Q002", "text": "Bridge rectifier working principle, circuit drawing, uses.", "family": "Electrical - 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Got Fn 5", "family": "Gas Detection & Instruments", "subtopic": "Explosimeter / Gas Detector", "tid": "KOL-2018-11-2238", "tray": "review", "candidates": [ { "answer_id": "GAS-DET-008", "score": 0.661141574382782, "sibling_score": 0.661141574382782, "answer_score": 0.434721702337265, "sibling_qid": "KOC-2026-09-2176-Q003", "sibling_text": "explosimeter working", "sibling_family": "Gas Detection & Instruments", "via": "sibling", "answer_title": "Explosimeter: construction, working, calibration, gases detected", "cross_family": false }, { "answer_id": "HAZ-EX-B-001", "score": 0.5688892006874084, "sibling_score": 0.5688892006874084, "answer_score": null, "sibling_qid": "KOC-2025-11-1652-Q007", "sibling_text": "intrinsic safety types internal no question got fn 5", "sibling_family": "", "via": "sibling", "answer_title": "Intrinsically safe (Ex i) equipment — what it is, how it works, where it is used, how you identify it", "cross_family": false }, { "answer_id": "CTRL-001", "score": 0.5457936525344849, "sibling_score": 0.5457936525344849, "answer_score": null, "sibling_qid": "KOL-2021-12-2522-Q005", "sibling_text": "cascade control system full got fn 5", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Cascade control — how it works", "cross_family": true } ] }, { "qid": "KOL-2018-11-2240-Q004", "text": "purpose of residual magnetism", "family": "Electrical - Generator & Alternator", "subtopic": "Residual Magnetism / Flashing", "tid": "KOL-2018-11-2240", "tray": "review", "candidates": [ { "answer_id": "RES-MAG-001", "score": 0.7178133130073547, "sibling_score": 0.7178133130073547, "answer_score": 0.46193837523460385, "sibling_qid": "CHE-2026-05-0553-Q005", "sibling_text": "why we need residual magnetism", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Residual magnetism — what it is, where it is stored, how it is lost and how you restore it", "cross_family": false }, { "answer_id": "IM-TSS-P01-001", "score": 0.2920686423778534, "sibling_score": null, "answer_score": 0.2920686423778534, "sibling_qid": "", "sibling_text": "skew and cogging skew rotor bars angled relative to the shaft axis by roughly one slot pitch purpose prevent cogging magnetic locking teeth alignment at start reduce crawling locking at a low harmonic speed and cut noise and torque ripple", "sibling_family": "", "via": "answer_title", "answer_title": "Skew and cogging", "cross_family": false }, { "answer_id": "RES-MAG-005", "score": 0.28503359854221344, "sibling_score": null, "answer_score": 0.28503359854221344, "sibling_qid": "", "sibling_text": "how voltage builds up when the avr is not yet in function and no power is available self excitation is a bootstrap remanence residual volts avr wakes exciter field current more flux more volts until the avr regulates on a shunt machine the avr s power supply comes from the main stator sensing leads which is exactly why it needs residual volts before it can do anything", "sibling_family": "", "via": "answer_title", "answer_title": "How voltage builds up when the AVR is not yet in function and no power is available", "cross_family": false } ] }, { "qid": "KOL-2018-11-3197-Q004", "text": "Running gear inspection of a.e.", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE CRANKCASE", "tid": "KOL-2018-11-3197", "tray": "new", "candidates": [ { "answer_id": "AECR-651-004", "score": 0.593195915222168, "sibling_score": 0.593195915222168, "answer_score": 0.4337815821170807, "sibling_qid": "MUM-2022-07-0017-Q017", "sibling_text": "bottom end bearing inspection", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "How do you inspect the bottom-end bearing, and how do you take the AE big-end clearance without removing it?", "cross_family": false }, { "answer_id": "AE-MB-001", "score": 0.5870731472969055, "sibling_score": 0.5870731472969055, "answer_score": null, "sibling_qid": "KOL-2018-09-3189-Q001", "sibling_text": "ae main bearing removal and inspection", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Removing and renewing an auxiliary-engine main bearing", "cross_family": false }, { "answer_id": "AE-CRP-004", "score": 0.581282913684845, "sibling_score": 0.581282913684845, "answer_score": null, "sibling_qid": "KOL-2018-06-3151-Q004", "sibling_text": "a e conn rod inspection he wants rod trueness", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE connecting-rod inspection — ovality, trueness, serrations, action if out of limit", "cross_family": false } ] }, { "qid": "KOL-2018-11-3198-Q001", "text": "Ship type and main engine", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "KOL-2018-11-3198", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P01-001", "score": 0.8375383019447327, "sibling_score": 0.8375383019447327, "answer_score": null, "sibling_qid": "MUM-2026-07-3668-Q004", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.8055407404899597, "sibling_score": 0.8055407404899597, "answer_score": null, "sibling_qid": "MUM-2025-08-2357-Q001", "sibling_text": "type of ship type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "AC-VE-001", "score": 0.7432790994644165, "sibling_score": 0.7432790994644165, "answer_score": null, "sibling_qid": "MUM-2026-01-2904-Q001", "sibling_text": "what type of ship engine power and nomenclature", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Volumetric efficiency: define it, and if it drops how do you improve it (with bumping clearance)?", "cross_family": false } ] }, { "qid": "KOL-2018-12-0237-Q006", "text": "annex 6 complete in full detail including eedi seemp incinerator,voc,sox,nox Rao", "family": "Auxiliary Equipment", "subtopic": "Incinerator", "tid": "KOL-2018-12-0237", "tray": "new", "candidates": [ { "answer_id": "SEEMP-123-B-003", "score": 0.5628708004951477, "sibling_score": 0.5628708004951477, "answer_score": null, "sibling_qid": "KOL-2017-11-0129-Q005", "sibling_text": "annex 6 in detail seemp eedi eeoi nox file details regulations for eedi n seemp that s all i remember", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Where SEEMP fits in MARPOL Annex VI, and its certification", "cross_family": true }, { "answer_id": "AIRP-188-004", "score": 0.5557973384857178, "sibling_score": 0.5557973384857178, "answer_score": 0.4354367733001709, "sibling_qid": "KOL-2019-07-0294-Q003", "sibling_text": "annex 6 new amendments and all requirements regarding nox sox voc and ods", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Annex VI air-pollutant strands and recent amendments", "cross_family": true }, { "answer_id": "AVI-SCOPE-005", "score": 0.523344874382019, "sibling_score": 0.523344874382019, "answer_score": null, "sibling_qid": "KOC-2025-09-0656-Q006", "sibling_text": "annex 6 name it s pollutant name how you maintain all this pollutant on board methods for that nox sox voc ods pm", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What pollutants, gases, emissions and substances are controlled under MARPOL Annex VI?", "cross_family": true } ] }, { "qid": "KOL-2018-12-0238-Q001", "text": "IG ALARMS AND TRIPS", "family": "Tanker - Inert Gas System", "subtopic": "IG Alarms / Trips", "tid": "KOL-2018-12-0238", "tray": "review", "candidates": [ { "answer_id": "IGAT-583-001", "score": 0.7807736992835999, "sibling_score": 0.7807736992835999, "answer_score": 0.4526570439338684, "sibling_qid": "MUM-2026-04-0929-Q002", "sibling_text": "ig alarms and trips", "sibling_family": "Tanker - Inert Gas System", "via": "sibling", "answer_title": "State all the alarms, trips and safety cut-outs provided on a tanker inert gas (IG) system.", "cross_family": false }, { "answer_id": "MR-DS-PV-B-003", "score": 0.45875439941883084, "sibling_score": null, "answer_score": 0.45875439941883084, "sibling_qid": "", "sibling_text": "3 alarms trips valves and abnormal conditions of the deck seal key seal alarm low water level audible and visual fss requirement any low low trip interlock of gas delivery is maker ship sms logic and should be quoted from the approved ig manual a low seal a lost first barrier pressure oxygen instrumentation when ig is being supplied continuously indicate and permanently record the pressure of the ", "sibling_family": "", "via": "answer_title", "answer_title": "3. Alarms, trips, valves, and abnormal conditions of the deck seal", "cross_family": false }, { "answer_id": "IGAT-583-003", "score": 0.4337743878364563, "sibling_score": null, "answer_score": 0.4337743878364563, "sibling_qid": "", "sibling_text": "what are the set values for the ig system alarms and trips ig line high low and low low pressure oxygen content pv valve and breaker pressures statutory fss code ch 15 msc 367 93 oxygen alarm in excess of 5 by volume in the delivered gas 2 2 4 5 1 1 statutory gas pressure alarm less than 100 mm water gauge 2 2 4 5 1 3", "sibling_family": "", "via": "answer_title", "answer_title": "What are the set values for the IG system alarms and trips — IG line high, low and low-low pressure, oxygen content, PV valve and breaker pressures?", "cross_family": false } ] }, { "qid": "KOL-2018-12-0238-Q007", "text": "What is Solid Ballast", "family": "", "subtopic": "GM / KM / KB / Metacentric", "tid": "KOL-2018-12-0238", "tray": "new", "candidates": [ { "answer_id": "BWM-D1D2-P03-001", "score": 0.4912078380584717, "sibling_score": 0.4912078380584717, "answer_score": null, "sibling_qid": "KOC-2022-09-0099-Q007", "sibling_text": "ballast d2 standard", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Regulation D-2 — ballast water performance / discharge standardHigh", "cross_family": false }, { "answer_id": "COT-14", "score": 0.472256064414978, "sibling_score": 0.472256064414978, "answer_score": null, "sibling_qid": "KOL-2026-07-4253-Q003", "sibling_text": "segregated ballast and and capacity", "sibling_family": "Ship Construction", "via": "sibling", "answer_title": "SBT applicability, capacity and draught criteria", "cross_family": false }, { "answer_id": "COT-13", "score": 0.4527490735054016, "sibling_score": 0.4527490735054016, "answer_score": 0.3154551714658737, "sibling_qid": "KOL-2023-09-0766-Q002", "sibling_text": "open ballast", "sibling_family": "Cargo Ops - 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General (HOLD)", "via": "sibling", "answer_title": "Constructional features & structural peculiarity (incl. vs tanker holds)", "cross_family": false } ] }, { "qid": "KOL-2018-12-0238-Q012", "text": "anti rolling tank arrangement draw n explain", "family": "", "subtopic": "Anti-Roll Tank / Stabiliser", "tid": "KOL-2018-12-0238", "tray": "new", "candidates": [ { "answer_id": "LTK-386-001", "score": 0.5856945514678955, "sibling_score": 0.5856945514678955, "answer_score": 0.44894753098487855, "sibling_qid": "MUM-2026-03-2930-Q009", "sibling_text": "layout of tanks", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Explain the general layout of tanks on a tanker", "cross_family": false }, { "answer_id": "GC-TANK-006", "score": 0.578913688659668, "sibling_score": 0.578913688659668, "answer_score": null, "sibling_qid": "CHE-2025-11-0309-Q010", "sibling_text": "cross what is self supporting tank and draw", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Prismatic / self-supporting gas-carrier cargo tank", "cross_family": false }, { "answer_id": "DBTB-A-002", "score": 0.5609694719314575, "sibling_score": 0.5609694719314575, "answer_score": null, "sibling_qid": "KOL-2017-01-0060-Q005", "sibling_text": "db tank construction details simple diagram margin plate solid plate floor longitudinals show in the diagram", "sibling_family": "", "via": "sibling", "answer_title": "Double-bottom tanks: purpose, advantages, disadvantages and stability effect", "cross_family": false } ] }, { "qid": "KOL-2018-12-0238-Q015", "text": "For MLC compliance What u do as 2nd engineer ?", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOL-2018-12-0238", "tray": "new", "candidates": [ { "answer_id": "LLC-SURV-P01-001", "score": 0.5865294933319092, "sibling_score": 0.5865294933319092, "answer_score": 0.4219644948840141, "sibling_qid": "MUM-2024-07-0188-Q005", "sibling_text": "ll survey things to check as 2nd engineer", "sibling_family": "", "via": "sibling", "answer_title": "Load line survey preparation as Second Engineer: engine-room scope, machinery openings, tanks/vents, valves and overboard checks", "cross_family": false }, { "answer_id": "AVI-SCOPE-003", "score": 0.5508989095687866, "sibling_score": 0.5508989095687866, "answer_score": 0.4015442132949829, "sibling_qid": "MUM-2024-09-2771-Q004", "sibling_text": "as a 2nd engineer what you will do to comply with annex 6 and many cross questions", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "As a Second Engineer, how do you demonstrate and maintain Annex VI compliance on board?", "cross_family": true }, { "answer_id": "PSC-005", "score": 0.5471210479736328, "sibling_score": 0.5471210479736328, "answer_score": 0.45900067687034607, "sibling_qid": "MUM-2023-05-0102-Q005", "sibling_text": "as a 2nd eng how will u make sure it is complied", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "5. As second engineer: preparing for PSC and ensuring compliance", "cross_family": true } ] }, { "qid": "KOL-2018-12-0238-Q027", "text": "IG alarms and trips.", "family": "Tanker - Inert Gas System", "subtopic": "IG Alarms / Trips", "tid": "KOL-2018-12-0238", "tray": "review", "candidates": [ { "answer_id": "IGAT-583-001", "score": 0.7807736992835999, "sibling_score": 0.7807736992835999, "answer_score": 0.4526570439338684, "sibling_qid": "MUM-2026-04-0929-Q002", "sibling_text": "ig alarms and trips", "sibling_family": "Tanker - Inert Gas System", "via": "sibling", "answer_title": "State all the alarms, trips and safety cut-outs provided on a tanker inert gas (IG) system.", "cross_family": false }, { "answer_id": "MR-DS-PV-B-003", "score": 0.4587543487548828, "sibling_score": null, "answer_score": 0.4587543487548828, "sibling_qid": "", "sibling_text": "3 alarms trips valves and abnormal conditions of the deck seal key seal alarm low water level audible and visual fss requirement any low low trip interlock of gas delivery is maker ship sms logic and should be quoted from the approved ig manual a low seal a lost first barrier pressure oxygen instrumentation when ig is being supplied continuously indicate and permanently record the pressure of the ", "sibling_family": "", "via": "answer_title", "answer_title": "3. Alarms, trips, valves, and abnormal conditions of the deck seal", "cross_family": false }, { "answer_id": "IGAT-583-003", "score": 0.4337743878364563, "sibling_score": null, "answer_score": 0.4337743878364563, "sibling_qid": "", "sibling_text": "what are the set values for the ig system alarms and trips ig line high low and low low pressure oxygen content pv valve and breaker pressures statutory fss code ch 15 msc 367 93 oxygen alarm in excess of 5 by volume in the delivered gas 2 2 4 5 1 1 statutory gas pressure alarm less than 100 mm water gauge 2 2 4 5 1 3", "sibling_family": "", "via": "answer_title", "answer_title": "What are the set values for the IG system alarms and trips — IG line high, low and low-low pressure, oxygen content, PV valve and breaker pressures?", "cross_family": false } ] }, { "qid": "KOL-2018-12-0242-Q002", "text": "Sub division, types of floor . 3. Emergency preparedness? Regulations!", "family": "", "subtopic": "Floodable Length / Permeability", "tid": "KOL-2018-12-0242", "tray": "new", "candidates": [ { "answer_id": "FLR-WFB-P01-001", "score": 0.5376137495040894, "sibling_score": 0.5376137495040894, "answer_score": null, "sibling_qid": "MUM-2024-07-0184-Q001", "sibling_text": "types of floor in er", "sibling_family": "", "via": "sibling", "answer_title": "Floors — what they are, the types, and where they are fitted", "cross_family": false }, { "answer_id": "CHEM-PA-002", "score": 0.4760958254337311, "sibling_score": 0.4760958254337311, "answer_score": null, "sibling_qid": "KOL-2016-09-0012-Q004", "sibling_text": "pump room rescue 4 annex 2 n categories", "sibling_family": "MARPOL - Annex II (NLS)", "via": "sibling", "answer_title": "Noxious liquid substances and their categories", "cross_family": false }, { "answer_id": "A60-BCLASS-002", "score": 0.4637969136238098, "sibling_score": 0.4637969136238098, "answer_score": null, "sibling_qid": "KOC-2025-08-0646-Q007", "sibling_text": "bulkead subdivision aclass and b class", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "A, B and C class divisions — and where they are used", "cross_family": false } ] }, { "qid": "KOL-2018-12-0242-Q003", "text": "Bulbusbow construction", "family": "", "subtopic": "Bulbous Bow", "tid": "KOL-2018-12-0242", "tray": "new", "candidates": [ { "answer_id": "PPS-230-006", "score": 0.41349852085113525, "sibling_score": 0.41349852085113525, "answer_score": 0.2967330187559128, "sibling_qid": "KOC-2023-01-0126-Q004", "sibling_text": "forward arrangement of the ship bulbos bow nd als the panting beams", "sibling_family": "", "via": "sibling", "answer_title": "Fore-end / fore-peak structure: draw and describe", "cross_family": false }, { "answer_id": "BSBH-420-001", "score": 0.4021872878074646, "sibling_score": 0.4021872878074646, "answer_score": null, "sibling_qid": "KOC-2023-10-0230-Q002", "sibling_text": "forward end construction", "sibling_family": "", "via": "sibling", "answer_title": "What is a breast hook, where is it fitted, and what does it connect at the fore end?", "cross_family": false }, { "answer_id": "FWFB-P02-005", "score": 0.3907099306583404, "sibling_score": 0.3783011734485626, "answer_score": 0.3907099306583404, "sibling_qid": "KOL-2016-05-0002-Q002", "sibling_text": "bulb angle what are the places draw", "sibling_family": "SOLAS", "via": "answer_title", "answer_title": "Other members: breast hook, bulb angle, cross tie, margin / coffin / shoe plates", "cross_family": false } ] }, { "qid": "KOL-2018-12-0247-Q003", "text": "What is clear ground?", "family": "Surveys - Statutory", "subtopic": "Detention / Clear Ground", "tid": "KOL-2018-12-0247", "tray": "review", "candidates": [ { "answer_id": "DCG-001", "score": 0.7015358805656433, "sibling_score": 0.7015358805656433, "answer_score": 0.2818660631775856, "sibling_qid": "KOL-2026-05-4095-Q005", "sibling_text": "what is clear ground", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is meant by \"clear grounds\", under PSC and under SOLAS? Give examples and state the conditions.", "cross_family": false }, { "answer_id": "DCG-003", "score": 0.6566728949546814, "sibling_score": 0.6566728949546814, "answer_score": null, "sibling_qid": "KOL-2023-09-0767-Q005", "sibling_text": "clear ground give any example of clear ground code", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the PSC deficiency code, which code leads to a detainable deficiency, and can you give an example of a \"clear-ground code\"?", "cross_family": false }, { "answer_id": "CXH-BRG-FINAL-1-006", "score": 0.2556859999895096, "sibling_score": null, "answer_score": 0.2556859999895096, "sibling_qid": "", "sibling_text": "crosshead guide shoe clearances how where how much piston position why clearances crosshead bearing clearance plus guide shoe clearance both sides running and thrust bearing clearance position is maker specified the aim is to put the running gear in the condition that opens the clearance at the measuring point for that design", "sibling_family": "", "via": "answer_title", "answer_title": "Crosshead & guide-shoe clearances: how, where, how much, piston position & why", "cross_family": false } ] }, { "qid": "KOL-2018-12-0248-Q006", "text": "Loadicator function", "family": "Stability & Loadicator", "subtopic": "Loadicator", "tid": "KOL-2018-12-0248", "tray": "new", "candidates": [ { "answer_id": "SOLAS12-BC-D-001", "score": 0.5942230224609375, "sibling_score": 0.5942230224609375, "answer_score": 0.32492162883281706, "sibling_qid": "KOC-2024-11-1425-Q007", "sibling_text": "why needed load indicator", "sibling_family": "", "via": "sibling", "answer_title": "Loadicator — why a loading instrument is required, and the loading-restriction concern", "cross_family": false }, { "answer_id": "LL-CONV-P06-004", "score": 0.5169349908828735, "sibling_score": 0.5169349908828735, "answer_score": 0.2888758510351181, "sibling_qid": "KOC-2024-11-0463-Q009", "sibling_text": "loadline", "sibling_family": "", "via": "sibling", "answer_title": "LLC-P06-04 - 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Annex IV (Sewage)", "via": "sibling", "answer_title": "Effluent standard and testing — MEPC.227(64)", "cross_family": true }, { "answer_id": "BWTEST-A-002", "score": 0.6130756139755249, "sibling_score": 0.6130756139755249, "answer_score": null, "sibling_qid": "KOL-2025-01-3738-Q001", "sibling_text": "boiler chloride and sulphite test", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What does high boiler-water chloride, salinity or TDS indicate, and what action is required?", "cross_family": true } ] }, { "qid": "KOL-2018-12-0251-Q002", "text": "FOS will depend on", "family": "General Marine Engineering", "subtopic": "Factor of Safety", "tid": "KOL-2018-12-0251", "tray": "new", "candidates": [ { "answer_id": "FSS-CODE-002", "score": 0.4485654830932617, "sibling_score": 0.4485654830932617, "answer_score": null, "sibling_qid": "KOC-2025-07-0627-Q006", "sibling_text": "fss code contents", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "How many chapters does the FSS Code have and what are they? Name the important chapters.", "cross_family": true }, { "answer_id": "QCV-001", "score": 0.4280455708503723, "sibling_score": 0.4280455708503723, "answer_score": null, "sibling_qid": "KOL-2022-09-3567-Q006", "sibling_text": "fqs system", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Quick closing valve — construction and what it is", "cross_family": true }, { "answer_id": "OIL-FUEL-TEST-002", "score": 0.42002633213996887, "sibling_score": 0.42002633213996887, "answer_score": null, "sibling_qid": "KOL-2020-07-0418-Q016", "sibling_text": "what is fobas", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "What is FOBAS in fuel-oil analysis?", "cross_family": true } ] }, { "qid": "KOL-2018-12-1433-Q005", "text": "Compressor motor flange alignment....", "family": "Air Compressor", "subtopic": "Reciprocating Compressor", "tid": "KOL-2018-12-1433", "tray": "review", "candidates": [ { "answer_id": "PAL-620-001", "score": 0.6525881886482239, "sibling_score": 0.6525881886482239, "answer_score": 0.47572221159934996, "sibling_qid": "KOL-2019-10-3280-Q003", "sibling_text": "compressor and its motor allignment checks before doing any test like dial indicator method", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "How do you check and set the alignment between a pump and its motor? Horizontal centrifugal pump — where the dial gauge goes and what values apply.", "cross_family": true }, { "answer_id": "AC-VE-001", "score": 0.6049899458885193, "sibling_score": 0.6049899458885193, "answer_score": null, "sibling_qid": "KOL-2023-02-1725-Q007", "sibling_text": "volumetric efficiency of compressor gone done bumping clearance adjustment", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Volumetric efficiency: define it, and if it drops how do you improve it (with bumping clearance)?", "cross_family": false }, { "answer_id": "REEF-COMP-005", "score": 0.5988904237747192, "sibling_score": 0.5988904237747192, "answer_score": null, "sibling_qid": "KOL-2021-08-3452-Q007", "sibling_text": "refer compressor pully and motor pully allignment how to do i answer inner side of both pully should be in line after hearing this he just ask for internal then chaki came golden words", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "V-belt drive on reefer compressors — why, and checking condition, alignment, tension, replacement", "cross_family": true } ] }, { "qid": "KOL-2018-12-1864-Q005", "text": "Working of auto backwash filters. Explain differential pressure. How autobackwash takes place explain.", "family": "Pumps - Centrifugal & PD", "subtopic": "Pipe Hole / Leak Detection", "tid": "KOL-2018-12-1864", "tray": "review", "candidates": [ { "answer_id": "LOF-359-003", "score": 0.6860190629959106, "sibling_score": 0.6860190629959106, "answer_score": 0.5106004893779754, "sibling_qid": "KOC-2025-03-1035-Q006", "sibling_text": "working of auto backwash filter", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Automatic Backwash (Back-Flush) Filter — Working", "cross_family": true }, { "answer_id": "FLT-BF052-001", "score": 0.6335737705230713, "sibling_score": 0.6335737705230713, "answer_score": 0.5014819413423538, "sibling_qid": "KOC-2024-12-1885-Q007", "sibling_text": "fuel auto backwash filter frequent backwashing reason", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "The fuel oil auto-backwash filter is backwashing too frequently — what is the reason and what is your action?", "cross_family": true }, { "answer_id": "FLT-BF052-002", "score": 0.5988012552261353, "sibling_score": 0.5988012552261353, "answer_score": 0.5259808480739593, "sibling_qid": "MUM-2026-05-3164-Q009", "sibling_text": "f o auto backwash filter not working what to check and how to make it working", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "The FO auto-backwash filter is not backflushing — what is the cause, what do you check and how do you get it working?", "cross_family": true } ] }, { "qid": "KOL-2018-12-2242-Q001", "text": "Explain the advantages of ac over dc.", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Active / Reactive / Apparent Power", "tid": "KOL-2018-12-2242", "tray": "new", "candidates": [ { "answer_id": "VFD-INV-P02-005", "score": 0.6330188512802124, "sibling_score": 0.6330188512802124, "answer_score": 0.413154236972332, "sibling_qid": "CHE-2026-02-0479-Q010", "sibling_text": "why dc is used instead of ac and how is it converted", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "How do rectifier, DC link and inverter stages convert AC to DC and DC to AC?", "cross_family": false }, { "answer_id": "ALT-GEN-P04-005", "score": 0.6309912204742432, "sibling_score": 0.6309912204742432, "answer_score": 0.47379221916198727, "sibling_qid": "KOC-2024-06-1364-Q002", "sibling_text": "advantages of ac", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "AC generator versus DC generator, and why ship supply is AC", "cross_family": true }, { "answer_id": "RMS-VAL-006", "score": 0.5685073137283325, "sibling_score": 0.5685073137283325, "answer_score": null, "sibling_qid": "KOC-2025-07-1558-Q010", "sibling_text": "why ac it s 440 220 110", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Why standard voltages are 220, 440, 1100 — not 200, 400, 1000", "cross_family": false } ] }, { "qid": "KOL-2018-12-2242-Q005", "text": "Dol starter working. What are the problems with dol starter?", "family": "Electrical - Motors & Starters", "subtopic": "DOL Starter", "tid": "KOL-2018-12-2242", "tray": "new", "candidates": [ { "answer_id": "STARTER-DEC-B-003", "score": 0.6097473502159119, "sibling_score": 0.6097473502159119, "answer_score": 0.3278362244367599, "sibling_qid": "KOC-2026-09-2184-Q010", "sibling_text": "explain dol starter dol starters where used", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "DOL starter — use, current, range and limits", "cross_family": false }, { "answer_id": "STARTER-DEC-B-002", "score": 0.600336492061615, "sibling_score": 0.600336492061615, "answer_score": null, "sibling_qid": "KOL-2026-04-2984-Q002", "sibling_text": "explain dol starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Why a starter is needed & reducing starting current", "cross_family": false }, { "answer_id": "IMSP-007", "score": 0.5506701469421387, "sibling_score": 0.5506701469421387, "answer_score": null, "sibling_qid": "KOL-2022-09-2601-Q002", "sibling_text": "safety in dol starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What safeties and protections are provided in an induction motor and its starter — overload, short-circuit, thermal? What about a motor on deck, and large three-phase motors?", "cross_family": false } ] }, { "qid": "KOL-2018-12-2244-Q002", "text": "Brushless alternator maintenance", "family": "Electrical - Generator & Alternator", "subtopic": "Brushless Alternator", "tid": "KOL-2018-12-2244", "tray": "review", "candidates": [ { "answer_id": "BL-ALT-C-004", "score": 0.8414033651351929, "sibling_score": 0.8414033651351929, "answer_score": 0.6223052740097046, "sibling_qid": "KOL-2019-05-2286-Q001", "sibling_text": "brushless alternator periodic maintenance", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Brushless alternator / excitation maintenance", "cross_family": false }, { "answer_id": "BL-ALT-C-001", "score": 0.819174587726593, "sibling_score": 0.819174587726593, "answer_score": null, "sibling_qid": "KOL-2018-05-2195-Q001", "sibling_text": "alternator everything why brushless advantage maintenance", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Electrical advantages of brushless excitation over brushed / static", "cross_family": false }, { "answer_id": "BRUSHALT-A-001", "score": 0.7750939726829529, "sibling_score": 0.7750939726829529, "answer_score": null, "sibling_qid": "KOL-2019-10-2338-Q002", "sibling_text": "brushless alternator maintenence exitation system", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01 · Working principle of the brushless alternator / brushless excitation systemHigh", "cross_family": false } ] }, { "qid": "KOL-2018-12-2244-Q003", "text": "safety precautions before working on a HV motor", "family": "Risk & Safety Management", "subtopic": "Permit to Work / Enclosed Space", "tid": "KOL-2018-12-2244", "tray": "review", "candidates": [ { "answer_id": "CB-ACBVCB-B-001", "score": 0.703833818435669, "sibling_score": 0.703833818435669, "answer_score": null, "sibling_qid": "MUM-2023-09-1402-Q004", "sibling_text": "hv safety before doing work vcf and sf6", "sibling_family": "", "via": "sibling", "answer_title": "ACB/main circuit breaker safeties, trips, settings and testing", "cross_family": false }, { "answer_id": "HV-SYS-P05-002", "score": 0.6970973014831543, "sibling_score": 0.6970973014831543, "answer_score": 0.6155103772878646, "sibling_qid": "MUM-2026-01-1913-Q003", "sibling_text": "safety taken before working on high voltage", "sibling_family": "", "via": "sibling", "answer_title": "Working on the HV system: precautions, isolation and earthing before maintenance", "cross_family": false }, { "answer_id": "IR-TEST-B-006", "score": 0.6951482892036438, "sibling_score": 0.6951482892036438, "answer_score": null, "sibling_qid": "KOL-2023-04-2652-Q001", "sibling_text": "hv motor insulation resistance measuring procedure what safeties to take", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "High-voltage IR test — full procedure", "cross_family": true } ] }, { "qid": "KOL-2018-12-2251-Q003", "text": "how to show to surveyor different alternator protection device functioning", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator Protection", "tid": "KOL-2018-12-2251", "tray": "review", "candidates": [ { "answer_id": "ALT-GEN-P01-001", "score": 0.6914141774177551, "sibling_score": 0.6914141774177551, "answer_score": 0.5202639281749725, "sibling_qid": "MUM-2026-07-3800-Q005", "sibling_text": "protection inside alternator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. 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What is the difference between a classification society, a Recognized Organization, and statutory certification?", "cross_family": false } ] }, { "qid": "KOL-2018-12-3202-Q003", "text": "Out of 3 generator, one generator all unit exhaust is red hot at 50% load. Causes, nd cross question.", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Decarb / Balancing / High Exhaust Temperature", "tid": "KOL-2018-12-3202", "tray": "review", "candidates": [ { "answer_id": "AE-HOT-BLOW-005", "score": 0.7076242566108704, "sibling_score": 0.7076242566108704, "answer_score": null, "sibling_qid": "MUM-2026-07-3847-Q010", "sibling_text": "ae all unit exhaust pipe red hot reson", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Auxiliary engine units rising — one versus all, and confirming a choked turbocharger nozzle ring", "cross_family": false }, { "answer_id": "EXH-T-HI-001", "score": 0.7029462456703186, "sibling_score": 0.7029462456703186, "answer_score": 0.5425565719604492, "sibling_qid": "MUM-2026-06-3616-Q013", "sibling_text": "ae all unit exhaust pipe red hot reason", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "All units exhaust temperature high — causes and actions", "cross_family": false }, { "answer_id": "EXH-T-HI-002", "score": 0.6565932631492615, "sibling_score": 0.6565932631492615, "answer_score": null, "sibling_qid": "CHE-2026-04-0259-Q004", "sibling_text": "temp of one unit exhaust is high wt will be ur action", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "One unit exhaust temperature high — causes, checks and actions", "cross_family": true } ] }, { "qid": "KOL-2018-12-3965-Q001", "text": "Alternator Speciation, Brushless excitation system", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Faraday Law", "tid": "KOL-2018-12-3965", "tray": "review", "candidates": [ { "answer_id": "BRUSHALT-A-001", "score": 0.7481900453567505, "sibling_score": 0.7481900453567505, "answer_score": 0.577244758605957, "sibling_qid": "CHE-2026-05-0603-Q003", "sibling_text": "brushless alternator explain only exciter", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01 · Working principle of the brushless alternator / brushless excitation systemHigh", "cross_family": true }, { "answer_id": "ALT-GEN-P03-003", "score": 0.5681540250778198, "sibling_score": null, "answer_score": 0.5681540250778198, "sibling_qid": "", "sibling_text": "brushless alternator advantages and brushed vs brushless comparison brushed dc excitation reaches rotor through brushes and slip rings brushless avr feeds exciter field exciter output is rectified by rotating diodes to feed main rotor", "sibling_family": "", "via": "answer_title", "answer_title": "Brushless alternator advantages and brushed vs brushless comparison", "cross_family": false }, { "answer_id": "BL-ALT-C-002", "score": 0.5581184595823288, "sibling_score": null, "answer_score": 0.5581184595823288, "sibling_qid": "", "sibling_text": "how to identify onboard that an alternator is brushless open the exciter non drive end cover no brushes no brush boxes or springs no slip rings no carbon dust brushless defining proof no slip rings on the main rotor a visible shaft mounted rotating rectifier diode wheel plus surge suppressor", "sibling_family": "", "via": "answer_title", "answer_title": "How to identify onboard that an alternator is brushless", "cross_family": false } ] }, { "qid": "KOL-2018-12-3965-Q006", "text": "What u will check as a 2nd engg in piston ring which is removed from M/E He don't want to listen axial width radial width butt clearance Compressibility of piston ring", "family": "2-Stroke - Components (Other)", "subtopic": "Piston Rings", "tid": "KOL-2018-12-3965", "tray": "review", "candidates": [ { "answer_id": "PRING-CLR-A-002", "score": 0.7939260601997375, "sibling_score": 0.7939260601997375, "answer_score": 0.5926489293575287, "sibling_qid": "KOC-2023-03-1813-Q006", "sibling_text": "piston ring inspection butt clearance significance radial clearance significance", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston-ring clearances and calibration — butt, axial, radial, wear limits", "cross_family": false }, { "answer_id": "PRING-CLR-A-001", "score": 0.7360424399375916, "sibling_score": 0.7360424399375916, "answer_score": null, "sibling_qid": "KOL-2019-11-1499-Q004", "sibling_text": "piston ting development cpr wat all things you check on pistonsrings while dcarbing butt clearance", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston-ring types — CPR, POP, the PC ring, and the pinned gap", "cross_family": false }, { "answer_id": "PRING-B-001", "score": 0.7317442893981934, "sibling_score": 0.7317442893981934, "answer_score": 0.6034252524375915, "sibling_qid": "KOL-2019-06-3248-Q002", "sibling_text": "piston ring discarding criteria wants to listen about spring action of the ring how to check the same", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston-ring inspection & discard criteria", "cross_family": false } ] }, { "qid": "KOL-2018-12-3965-Q007", "text": "Check as a 2nd eng in sea chest during Drydock", "family": "Workshop & Welding", "subtopic": "Sea Chest Hole / Cement Box", "tid": "KOL-2018-12-3965", "tray": "review", "candidates": [ { "answer_id": "DUS-P1-01", "score": 0.7070807218551636, "sibling_score": 0.7070807218551636, "answer_score": null, "sibling_qid": "KOC-2026-08-2122-Q004", "sibling_text": "drydock checks as 2 eng", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Drydock preparation as 2E — full workflow from office confirmation to entry", "cross_family": true }, { "answer_id": "DDHSC-001", "score": 0.6993566155433655, "sibling_score": 0.6993566155433655, "answer_score": 0.5576433330774307, "sibling_qid": "KOC-2025-07-1933-Q005", "sibling_text": "dry dock check as second engg", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Ship is in drydock and the dock is pumped dry — what checks do you carry out as Second Engineer?", "cross_family": true }, { "answer_id": "TURBO-CS-P02-013", "score": 0.6931770443916321, "sibling_score": 0.6931770443916321, "answer_score": null, "sibling_qid": "KOL-2019-03-3221-Q001", "sibling_text": "one tc without bypass isolate 2 drydock checks after flooding by 2nd eng", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Multi-turbocharger engine: isolating one unit (bypass vs non-bypass)", "cross_family": true } ] }, { "qid": "KOL-2019-01-0253-Q001", "text": "With reference to Solas, explain the safeties incorporated for the safe operation of stern and midship ramps on RoRo vessels.", "family": "Auxiliary Equipment", "subtopic": "Winch Brake Rendering Test", "tid": "KOL-2019-01-0253", "tray": "new", "candidates": [ { "answer_id": "ERC-345-005", "score": 0.5874696373939514, "sibling_score": 0.5874696373939514, "answer_score": null, "sibling_qid": "KOL-2017-01-3023-Q004", "sibling_text": "er crane need to be secure befor sailng precautions", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Securing the crane before sailing", "cross_family": false }, { "answer_id": "WIND-WNCH-009", "score": 0.5827868580818176, "sibling_score": 0.5827868580818176, "answer_score": null, "sibling_qid": "KOC-2024-09-0412-Q006", "sibling_text": "windlass safeties", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Windlass / winch safeties", "cross_family": false }, { "answer_id": "WIND-WNCH-014", "score": 0.5797169804573059, "sibling_score": 0.5797169804573059, "answer_score": null, "sibling_qid": "CHE-2026-03-0124-Q005", "sibling_text": "safties in windlass", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Electric winch running slow — fault diagnosis (and bundled items)", "cross_family": false } ] }, { "qid": "KOL-2019-01-0253-Q004", "text": "How will you charge a refrigerant after purging the system, without letting any gas go to the atmosphere during purging. 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Requirement of deadlight, where fitted.", "family": "SOLAS - Watertight & Closing Appliances", "subtopic": "Watertight Door", "tid": "KOL-2019-01-0258", "tray": "new", "candidates": [ { "answer_id": "LT-SRC-003", "score": 0.5309990644454956, "sibling_score": 0.5309990644454956, "answer_score": 0.3862682983279228, "sibling_qid": "KOC-2023-04-0181-Q017", "sibling_text": "light fittings near life boat requirements", "sibling_family": "", "via": "sibling", "answer_title": "What lighting is required for embarkation, lifeboat areas and survival craft?", "cross_family": false }, { "answer_id": "LT-SRC-012", "score": 0.5099740028381348, "sibling_score": 0.5099740028381348, "answer_score": null, "sibling_qid": "MUM-2017-01-1322-Q006", "sibling_text": "specific location and requirement of such lighting", "sibling_family": "", "via": "sibling", "answer_title": "General lighting-source residual: multi-lamp wiring, location & emergency-source SOLAS", "cross_family": false }, { "answer_id": "LT-SRC-002", "score": 0.48387089371681213, "sibling_score": 0.48387089371681213, "answer_score": 0.3841995120048523, "sibling_qid": "KOL-2022-07-2581-Q005", "sibling_text": "emergency lighting details where fitted regulation", "sibling_family": "", "via": "sibling", "answer_title": "Where is emergency lighting required, and what does SOLAS demand?", "cross_family": false } ] }, { "qid": "KOL-2019-01-0258-Q003", "text": "Centre of rotation. What is the name of tht point. Pivot point.", "family": "", "subtopic": "Squat", "tid": "KOL-2019-01-0258", "tray": "new", "candidates": [ { "answer_id": "LCF-LCB-001", "score": 0.5220828056335449, "sibling_score": 0.5220828056335449, "answer_score": 0.3600293636322021, "sibling_qid": "KOL-2018-11-0230-Q006", "sibling_text": "centre of floatation", "sibling_family": "", "via": "sibling", "answer_title": "What is the LCF (centre of flotation), where is it, and why does it matter?", "cross_family": false }, { "answer_id": "TPC-FWA-008", "score": 0.5220828056335449, "sibling_score": 0.5220828056335449, "answer_score": 0.41185655593872067, "sibling_qid": "MUM-2023-08-0120-Q003", "sibling_text": "centre of floatation", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Centre of flotation", "cross_family": false }, { "answer_id": "STAB-D-003", "score": 0.5065537691116333, "sibling_score": 0.5065537691116333, "answer_score": null, "sibling_qid": "KOL-2019-07-0301-Q002", "sibling_text": "centering angle how used tell me the effects", "sibling_family": "", "via": "sibling", "answer_title": "Righting Moment, and Transverse vs Longitudinal vs Directional Stability", "cross_family": false } ] }, { "qid": "KOL-2019-01-0258-Q004", "text": "Balanced and unbalanced rudder. Which one using and y so?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2019-01-0258", "tray": "new", "candidates": [ { "answer_id": "TRS-001", "score": 0.6172245144844055, "sibling_score": 0.6172245144844055, "answer_score": null, "sibling_qid": "KOL-2019-05-3236-Q005", "sibling_text": "rudder stock twisted how will you balance it how to find changed mishsip position", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "The rudder stock is twisted — how do you proceed, recover the true midship datum, and what regulations let you proceed to the next port?", "cross_family": false }, { "answer_id": "STEER-055-A-004", "score": 0.6069602370262146, "sibling_score": 0.6069602370262146, "answer_score": null, "sibling_qid": "KOL-2019-02-3212-Q005", "sibling_text": "rudder is taking more to come from one side to the other reasons and maintenance", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Hydraulic faults — air, sluggish response, locking, leakage", "cross_family": false }, { "answer_id": "SPR-STERN-004", "score": 0.5933701395988464, "sibling_score": 0.5933701395988464, "answer_score": null, "sibling_qid": "MUM-2026-04-0894-Q003", "sibling_text": "what type of rudder i said semi balanced double plated rudder angle of attack stall angle", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Propeller rake & skew", "cross_family": true } ] }, { "qid": "KOL-2019-01-2256-Q005", "text": "Hydraulic actuator working", "family": "Steering Gear & Hydraulics", "subtopic": "Hydraulic Valves", "tid": "KOL-2019-01-2256", "tray": "review", "candidates": [ { "answer_id": "HYD-JACK-001", "score": 0.6632864475250244, "sibling_score": 0.6632864475250244, "answer_score": null, "sibling_qid": "MUM-2026-08-3860-Q004", "sibling_text": "hydraulic jack working", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Hydraulic jack — construction, components, sealing and basic working", "cross_family": true }, { "answer_id": "GOV-P02-006", "score": 0.6449766755104065, "sibling_score": 0.6449766755104065, "answer_score": null, "sibling_qid": "KOL-2023-08-1753-Q004", "sibling_text": "electro hydraulic governor working", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Electro-hydraulic (Woodward) governor working", "cross_family": true }, { "answer_id": "HYD-VLV-005", "score": 0.6402482986450195, "sibling_score": 0.6402482986450195, "answer_score": null, "sibling_qid": "KOL-2021-08-2476-Q007", "sibling_text": "hydraulic block v v diagram how it work explain", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Reading the Hydraulic Block: P, T, A, B and the Directional-Valve Symbol", "cross_family": false } ] }, { "qid": "KOL-2019-01-3203-Q001", "text": "3/e informs you that a few of the m/e foundation bolts are loose. 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On lpg", "family": "Air Compressor", "subtopic": "Reciprocating Compressor", "tid": "KOL-2019-01-3204", "tray": "new", "candidates": [ { "answer_id": "MAC-353-005", "score": 0.6161350607872009, "sibling_score": 0.6161350607872009, "answer_score": 0.43368542194366455, "sibling_qid": "MUM-2025-06-1134-Q001", "sibling_text": "difference between mair air compressor and ac comp lubrication system pressure", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Lubrication of the main air compressor; MAC vs A/C-compressor LO pressure", "cross_family": false }, { "answer_id": "AC-STAGE-001", "score": 0.5909087061882019, "sibling_score": 0.5909087061882019, "answer_score": 0.43594533801078794, "sibling_qid": "KOL-2017-03-3039-Q005", "sibling_text": "air compressor why multi stage why intetcooler why air passes through tubes not in the casing surrounding the tubes of the cooler why bursting disc is given material", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Why multistage compression — advantages over single-stage", "cross_family": false }, { "answer_id": "LPG-LNG-009", "score": 0.5908147692680359, "sibling_score": 0.5908147692680359, "answer_score": null, "sibling_qid": "KOC-2022-01-0949-Q006", "sibling_text": "lpg compressor room propane vs butane difference", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Gas-carrier fundamentals and ship-specific traps", "cross_family": true } ] }, { "qid": "KOL-2019-01-3204-Q006", "text": "Boiler safety valve ..How the stem is connected to the seat.is it welded..Threaded or pinned ?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2019-01-3204", "tray": "review", "candidates": [ { "answer_id": "MR-DS-PV-B-006", "score": 0.6618093848228455, "sibling_score": 0.6618093848228455, "answer_score": null, "sibling_qid": "KOC-2026-09-2180-Q009", "sibling_text": "full bore safety valve construction", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "6. 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, where fitted ?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Quality / CCAI", "tid": "KOL-2019-02-1442", "tray": "new", "candidates": [ { "answer_id": "VIT-MECH-B-002", "score": 0.5091738700866699, "sibling_score": 0.5091738700866699, "answer_score": null, "sibling_qid": "CHE-2026-03-0254-Q002", "sibling_text": "vit explain fqs settings", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How VIT is adjusted and set — timing and fuel-quality (FQS) interactions", "cross_family": false }, { "answer_id": "QCV-001", "score": 0.5030830502510071, "sibling_score": 0.5030830502510071, "answer_score": null, "sibling_qid": "KOL-2022-09-3567-Q006", "sibling_text": "fqs system", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Quick closing valve — construction and what it is", "cross_family": true }, { "answer_id": "VFD-INV-P01-002", "score": 0.501837432384491, "sibling_score": 0.501837432384491, "answer_score": 0.39602209627628326, "sibling_qid": "MUM-2025-08-1610-Q001", "sibling_text": "what is vfd functioning and where it is used onboard ship", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Where is a VFD used onboard, and why?", "cross_family": true } ] }, { "qid": "KOL-2019-02-2259-Q002", "text": "High voltage sysytem stt and pwe proforma", "family": "Risk & Safety Management", "subtopic": "Permit to Work / Enclosed Space", "tid": "KOL-2019-02-2259", "tray": "new", "candidates": [ { "answer_id": "HV-SYS-P06-001", "score": 0.5361339449882507, "sibling_score": 0.5361339449882507, "answer_score": null, "sibling_qid": "KOC-2024-02-1333-Q004", "sibling_text": "high voltage system requirements", "sibling_family": "", "via": "sibling", "answer_title": "Class and regulatory requirements for marine HV systems", "cross_family": false }, { "answer_id": "T038-P01-002", "score": 0.5293008089065552, "sibling_score": 0.5293008089065552, "answer_score": null, "sibling_qid": "MUM-2026-07-3677-Q001", "sibling_text": "high voltage system explain", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "HV system onboard — layout, components, applications, earthing & protection", "cross_family": true }, { "answer_id": "HV-SYS-P02-001", "score": 0.5099278688430786, "sibling_score": 0.5099278688430786, "answer_score": null, "sibling_qid": "KOL-2021-05-2449-Q001", "sibling_text": "high voltage system advantage and purpose", "sibling_family": "", "via": "sibling", "answer_title": "Why high voltage is used onboard ships", "cross_family": false } ] }, { "qid": "KOL-2019-02-2260-Q003", "text": "Explain rectifier, inverter, filter and chopper circuit?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Zener / Diode / Rectifier", "tid": "KOL-2019-02-2260", "tray": "new", "candidates": [ { "answer_id": "VFD-INV-P02-005", "score": 0.5905719995498657, "sibling_score": 0.5905719995498657, "answer_score": 0.4649193912744522, "sibling_qid": "CHE-2026-03-0360-Q006", "sibling_text": "what is inverter and rectifier", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "How do rectifier, DC link and inverter stages convert AC to DC and DC to AC?", "cross_family": false }, { "answer_id": "EPC-P01-06", "score": 0.5495549440383911, "sibling_score": 0.5495549440383911, "answer_score": 0.40581599473953245, "sibling_qid": "KOL-2021-03-2433-Q004", "sibling_text": "how dc produce onboard diagram of rectifier how it work", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Do we produce DC on board? 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Engine done. Any major breakdown. Purifier vertical shaft overhaul. Bearing location draw. Bearing Type. Cross section of thrust bearing.", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOL-2019-02-3215", "tray": "review", "candidates": [ { "answer_id": "AE-CSB-346-002", "score": 0.6992864012718201, "sibling_score": 0.6992864012718201, "answer_score": null, "sibling_qid": "KOC-2024-09-1005-Q014", "sibling_text": "4s engin thrust bearing overhaul", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Removing / overhauling the auxiliary-engine thrust bearing", "cross_family": true }, { "answer_id": "THRUST-PC-002", "score": 0.6802037954330444, "sibling_score": 0.6802037954330444, "answer_score": 0.5498902291059494, "sibling_qid": "MUM-2026-03-2935-Q017", "sibling_text": "thrust bearings overhaul", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Overhaul of the thrust bearing", "cross_family": true }, { "answer_id": "THRUST-PC-001", "score": 0.6719366312026978, "sibling_score": 0.6719366312026978, "answer_score": 0.5048418223857879, "sibling_qid": "KOL-2019-02-3214-Q005", "sibling_text": "thrust bearing survey every thing overhauling", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Thrust bearing / block survey — 2/E scope", "cross_family": true } ] }, { "qid": "KOL-2019-02-3215-Q005", "text": "Instruction to 4th engineer for taking crankshaft deflection", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft / Crankpin", "tid": "KOL-2019-02-3215", "tray": "review", "candidates": [ { "answer_id": "CRK-DEFL-003", "score": 0.784451425075531, "sibling_score": 0.784451425075531, "answer_score": null, "sibling_qid": "CHE-2025-08-0416-Q004", "sibling_text": "if your fourth engineer has taken crank shaft deflection how u will find he has taken correctly or not", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Verifying deflection readings taken by others", "cross_family": false }, { "answer_id": "CRK-DEFL-005", "score": 0.7640869617462158, "sibling_score": 0.7640869617462158, "answer_score": null, "sibling_qid": "KOC-2026-05-0012-Q005", "sibling_text": "crankshaft deflection taken by third engineer how you will check how you ll draw the graph step by step and cross", "sibling_family": "2-Stroke - 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Combustion, Power & Performance", "via": "sibling", "answer_title": "Torsional vibration: what it is, what causes it, how it is controlled", "cross_family": true }, { "answer_id": "ANCHR-B-003", "score": 0.5094702243804932, "sibling_score": 0.5094702243804932, "answer_score": null, "sibling_qid": "KOC-2025-10-1056-Q011", "sibling_text": "what is anchor ranging some more ques can t remember 4b passed 6 repeat", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Ranging the cable — what it is, why, and the parts", "cross_family": true }, { "answer_id": "MIB-B-001", "score": 0.4945524334907532, "sibling_score": 0.4945524334907532, "answer_score": null, "sibling_qid": "KOL-2023-08-2673-Q005", "sibling_text": "4 what is fet", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "MOSFET, FET and JFET — construction, operation and where they are used", "cross_family": true } ] }, { "qid": "KOL-2019-02-3217-Q002", "text": "Boiler safety valve pressure setting?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2019-02-3217", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-001", "score": 0.884188175201416, "sibling_score": 0.884188175201416, "answer_score": null, "sibling_qid": "CHE-2026-09-3931-Q006", "sibling_text": "boiler safety valve pressure setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.8178530931472778, "sibling_score": 0.8178530931472778, "answer_score": null, "sibling_qid": "CHE-2026-09-3919-Q009", "sibling_text": "boiler safety valve setting in front of surveyor first and second safety valve pressure difference", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.815889835357666, "sibling_score": 0.815889835357666, "answer_score": null, "sibling_qid": "CHE-2026-05-0583-Q002", "sibling_text": "boiler safety valve lifting pressure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOL-2019-03-0264-Q005", "text": "Tank inspection procedure for Gas carriers", "family": "Cargo Ops - Gas Carriers", "subtopic": "Tank Cooldown", "tid": "KOL-2019-03-0264", "tray": "review", "candidates": [ { "answer_id": "GAS-DET-005", "score": 0.7096887230873108, "sibling_score": 0.7096887230873108, "answer_score": null, "sibling_qid": "MUM-2026-03-2930-Q008", "sibling_text": "what are the checks you do on gas tanker cargo tanks", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Tankscope: purpose, working, when to use, gases measured", "cross_family": false }, { "answer_id": "ESE-P01-004", "score": 0.6600345969200134, "sibling_score": 0.6600345969200134, "answer_score": null, "sibling_qid": "MUM-2026-03-0866-Q012", "sibling_text": "fuel tank inspection how to do", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "Fuel-oil, settling, bunker or double-bottom tank entry and inspection", "cross_family": true }, { "answer_id": "GC-TANK-001", "score": 0.6486546397209167, "sibling_score": 0.6486546397209167, "answer_score": null, "sibling_qid": "CHE-2026-02-0115-Q003S2", "sibling_text": "types of tanks in gas carriers", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Main cargo containment and independent tank types on LPG and LNG carriers", "cross_family": false } ] }, { "qid": "KOL-2019-03-0267-Q002", "text": "MLC 2006 details", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOL-2019-03-0267", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-007", "score": 0.5064945220947266, "sibling_score": 0.5064945220947266, "answer_score": null, "sibling_qid": "MUM-2026-02-0734-Q007", "sibling_text": "mlc 2006 detainable deficiency", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false }, { "answer_id": "MLC-WRH-B-002", "score": 0.42311084270477295, "sibling_score": 0.42311084270477295, "answer_score": null, "sibling_qid": "MUM-2022-07-0027-Q005", "sibling_text": "mlc 2006 wages rest hours", "sibling_family": "MLC", "via": "sibling", "answer_title": "Work and rest hours under MLC — the criteria, the weekly limit, the intervals", "cross_family": false }, { "answer_id": "DUS-P1-03", "score": 0.4155759811401367, "sibling_score": 0.4155759811401367, "answer_score": null, "sibling_qid": "KOL-2023-04-0735-Q004", "sibling_text": "docking plan 5 mlc 2006", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Docking plan — content, purpose and how the 2E uses it", "cross_family": true } ] }, { "qid": "KOL-2019-03-0273-Q009", "text": "Damage stability criteria", "family": "SOLAS", "subtopic": "Damage Stability", "tid": "KOL-2019-03-0273", "tray": "review", "candidates": [ { "answer_id": "DAM-STAB-P03-002", "score": 0.8118935823440552, "sibling_score": 0.8118935823440552, "answer_score": null, "sibling_qid": "KOC-2024-12-0485-Q011", "sibling_text": "damage stability criteria", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "General cargo-ship damage stability criteria and requirements", "cross_family": false }, { "answer_id": "DS-049-P02-001", "score": 0.8084818720817566, "sibling_score": 0.8084818720817566, "answer_score": 0.4985383152961731, "sibling_qid": "KOC-2024-09-0405-Q008", "sibling_text": "damage stability intact stability criteria", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Difference between intact stability (static / dynamic) and damage stability criteria", "cross_family": false }, { "answer_id": "DAM-STAB-P03-001", "score": 0.7940254807472229, "sibling_score": 0.7940254807472229, "answer_score": 0.5035339832305908, "sibling_qid": "KOL-2018-05-0175-Q001", "sibling_text": "intact stability damage stability criteria", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Intact, static, dynamic and damage stability: difference and criteria", "cross_family": false } ] }, { "qid": "KOL-2019-03-0274-Q002", "text": "different types of brakes in lifeboat and its advantages...types mean mechanical,centrifugal and other types.", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Lifeboat Static / Dynamic Test", "tid": "KOL-2019-03-0274", "tray": "review", "candidates": [ { "answer_id": "DRG-B-003", "score": 0.8396000266075134, "sibling_score": 0.8396000266075134, "answer_score": 0.5935076326131821, "sibling_qid": "KOL-2022-08-0674-Q003", "sibling_text": "types of brakes in lifeboat how centrifugal brake works", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Brakes — types, why two, and how the centrifugal brake works", "cross_family": false }, { "answer_id": "DRG-B-002", "score": 0.6744629740715027, "sibling_score": 0.6744629740715027, "answer_score": 0.4920041859149933, "sibling_qid": "KOL-2025-09-1034-Q011", "sibling_text": "life boat winch braking system and operation", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "The lifeboat winch — construction, hoisting and long-term maintenance", "cross_family": false }, { "answer_id": "LBT-TEST-B-003", "score": 0.6741334795951843, "sibling_score": 0.6741334795951843, "answer_score": null, "sibling_qid": "KOL-2023-10-0779-Q006", "sibling_text": "lifeboat brake tests static and dynamic exact", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Winch/davit brake test — static vs dynamic, holding capacity, slippage", "cross_family": false } ] }, { "qid": "KOL-2019-03-0274-Q003", "text": "flare and dead rise define 4 eedi and seemp..techinal data as 2nd eng", "family": "SOLAS", "subtopic": "Bulbous Bow", "tid": "KOL-2019-03-0274", "tray": "new", "candidates": [ { "answer_id": "EEDI-C-003", "score": 0.4647219181060791, "sibling_score": 0.4647219181060791, "answer_score": null, "sibling_qid": "KOL-2019-09-0323-Q004", "sibling_text": "eedi and seemp file what parameters noted in it as per engine room operations didn t understand 5 fuel oil consumption filing a requirement now what all parameters will u record as 2e", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "How EEDI sits against EEXI, CII and SEEMP", "cross_family": true }, { "answer_id": "TC-SURGE-003", "score": 0.46373438835144043, "sibling_score": 0.46373438835144043, "answer_score": null, "sibling_qid": "MUM-2025-12-2879-Q007", "sibling_text": "main engine t c surging and what will be action as second 2 e", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharger surging on your watch — causes, and what immediate and remedial action do you take?", "cross_family": true }, { "answer_id": "AEDEC-291-004", "score": 0.4361175298690796, "sibling_score": 0.4361175298690796, "answer_score": null, "sibling_qid": "KOL-2019-11-3298-Q002", "sibling_text": "ae full oh carried out ae running on no load what all things u will check as 2nd eng not satisfied with answer", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "4. Checks on no-load and before taking load", "cross_family": true } ] }, { "qid": "KOL-2019-03-0275-Q003", "text": "Dry dock what all certficate needed and purpose.", "family": "Surveys - Statutory", "subtopic": "Certificates List", "tid": "KOL-2019-03-0275", "tray": "review", "candidates": [ { "answer_id": "HSSC-003", "score": 0.6882373094558716, "sibling_score": 0.6882373094558716, "answer_score": 0.47897701561450956, "sibling_qid": "CHE-2025-10-0062-Q007", "sibling_text": "dry dock what all certificates are renewed what is hssc code", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Explain the harmonisation of the statutory certificates. Which certificate is issued first, and in drydock which certificates are renewed?", "cross_family": false }, { "answer_id": "ELEC-SURV-003", "score": 0.6621926426887512, "sibling_score": 0.6621926426887512, "answer_score": null, "sibling_qid": "KOL-2025-08-2843-Q005", "sibling_text": "preparation of electrical equipment certificate for drydock", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Documents, certificates & trend records", "cross_family": false }, { "answer_id": "DUS-P1-04", "score": 0.6620166301727295, "sibling_score": 0.6620166301727295, "answer_score": 0.5083055645227432, "sibling_qid": "KOL-2020-07-0418-Q002", "sibling_text": "dry docking certificates and plans", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Documents, plans and certificates the 2E submits to the drydock", "cross_family": true } ] }, { "qid": "KOL-2019-03-0276-Q001", "text": "Types of ship , as I said Log Carrier he asked effects of carrying logs on the Stability of ship.", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2019-03-0276", "tray": "review", "candidates": [ { "answer_id": "LPG-LNG-009", "score": 0.6798020005226135, "sibling_score": 0.6798020005226135, "answer_score": null, "sibling_qid": "CHE-2026-04-0164-Q001", "sibling_text": "type of ship sailed lpg carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Gas-carrier fundamentals and ship-specific traps", "cross_family": false }, { "answer_id": "SOLAS12-BC-A-001", "score": 0.6772835850715637, "sibling_score": 0.6772835850715637, "answer_score": null, "sibling_qid": "MUM-2026-06-3382-Q001", "sibling_text": "type of ship sailed bulk carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "SOLAS definition and scope of a bulk carrier", "cross_family": false }, { "answer_id": "DAM-STAB-P03-002", "score": 0.6622075438499451, "sibling_score": 0.6622075438499451, "answer_score": null, "sibling_qid": "KOL-2017-11-0128-Q002", "sibling_text": "damage stability for general cargo ships and ship you sailed", "sibling_family": "", "via": "sibling", "answer_title": "General cargo-ship damage stability criteria and requirements", "cross_family": false } ] }, { "qid": "KOL-2019-03-0276-Q003", "text": "Types of training manual on board and their content. 4 . Various information from Statical Stability curve. 5 . Something related to liquid fire ... I didn't understand the question only.", "family": "ISM Code", "subtopic": "SMS / Functional Requirements", "tid": "KOL-2019-03-0276", "tray": "review", "candidates": [ { "answer_id": "FIRE-P05-01", "score": 0.7088832259178162, "sibling_score": 0.7088832259178162, "answer_score": 0.5241533994674682, "sibling_qid": "MUM-2026-09-3971-Q008", "sibling_text": "solas training manual contents", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Fire-safety training manual — SOLAS II-2 Reg 15 contents and location", "cross_family": false }, { "answer_id": "SMSFR-002", "score": 0.6695157885551453, "sibling_score": 0.6695157885551453, "answer_score": null, "sibling_qid": "KOL-2019-12-0373-Q002", "sibling_text": "i e sms manual nd its contents 4 emergency preparedness under sms manual 5 hru in liferaft chakraborty func 3", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the Safety Management System — the SMS manual, its contents, objectives, why it is needed onboard, and the company SMS policy?", "cross_family": false }, { "answer_id": "IGC-GAS-006", "score": 0.6622813940048218, "sibling_score": 0.6622813940048218, "answer_score": null, "sibling_qid": "KOL-2019-01-0254-Q002", "sibling_text": "fire fighting system on lpg deck 3intact and static stability curves", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Deck fixed dry chemical powder (DCP) fire-extinguishing system", "cross_family": true } ] }, { "qid": "KOL-2019-03-1443-Q006", "text": "resource management of engine room and lot of cross questioning", "family": "", "subtopic": "", "tid": "KOL-2019-03-1443", "tray": "new", "candidates": [ { "answer_id": "ERM-BF053-001", "score": 0.5955076217651367, "sibling_score": 0.5955076217651367, "answer_score": 0.41468634009361266, "sibling_qid": "KOC-2023-03-0159-Q005", "sibling_text": "engine room resource management explain", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is Engine Room Resource Management — explain it fully, with its parts and the STCW regulation and chapter it comes under?", "cross_family": false }, { "answer_id": "STEER-055-A-005", "score": 0.5229021310806274, "sibling_score": 0.5229021310806274, "answer_score": 0.38000717163085934, "sibling_qid": "MUM-2026-05-3154-Q010S2", "sibling_text": "then asked about where in engine room", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Checks, clearances, trials and steering-room duties", "cross_family": false }, { "answer_id": "UMS-310-001", "score": 0.49106913805007935, "sibling_score": 0.49106913805007935, "answer_score": null, "sibling_qid": "KOL-2018-08-3169-Q008", "sibling_text": "ums engine room requirements", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a UMS ship and what does SOLAS require? (Part E, regs 46–53)", "cross_family": false } ] }, { "qid": "KOL-2019-03-1444-Q005", "text": "Type of ship ,engine and configuration", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "KOL-2019-03-1444", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8259758353233337, "sibling_score": 0.8259758353233337, "answer_score": null, "sibling_qid": "CHE-2026-04-0373-Q001S6", "sibling_text": "type of ship specification of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.8134625554084778, "sibling_score": 0.8134625554084778, "answer_score": null, "sibling_qid": "MUM-2026-07-3668-Q004", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "AC-VE-001", "score": 0.762154221534729, "sibling_score": 0.762154221534729, "answer_score": null, "sibling_qid": "MUM-2026-01-2904-Q001", "sibling_text": "what type of ship engine power and nomenclature", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Volumetric efficiency: define it, and if it drops how do you improve it (with bumping clearance)?", "cross_family": false } ] }, { "qid": "KOL-2019-03-1446-Q003", "text": "Bedplate 3 main function", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Bedplate / A-Frame", "tid": "KOL-2019-03-1446", "tray": "new", "candidates": [ { "answer_id": "FWFB-P02-007", "score": 0.39482468366622925, "sibling_score": 0.39482468366622925, "answer_score": null, "sibling_qid": "MUM-2026-03-2952-Q007", "sibling_text": "what type of bedplate", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Transverse and longitudinal girders: arrangement and purpose", "cross_family": false }, { "answer_id": "CHK-330-004", "score": 0.38201072812080383, "sibling_score": 0.38201072812080383, "answer_score": null, "sibling_qid": "MUM-2026-03-1306-Q014S4", "sibling_text": "bed plate parts choking arrangement alignment of shaft intermediate shaft take out procedure", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Chocking arrangement on the main engine bedplate seating", "cross_family": false }, { "answer_id": "BED-CHOCK-001", "score": 0.3720133900642395, "sibling_score": 0.3720133900642395, "answer_score": null, "sibling_qid": "MUM-2023-08-0952-Q004", "sibling_text": "how to fix bed plate on ship", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "How is the main-engine bedplate fixed to the ship's structure?", "cross_family": false } ] }, { "qid": "KOL-2019-03-2270-Q002", "text": "A 15 amps single phase motor with broken wiring needs rewiring you have an indicating lamp .. a motor a switch an earthing wire. draw the diagram of junction box terminals with labels for rewiring the cable", "family": "Electrical - Motors & Starters", "subtopic": "Motor Terminals / Connections", "tid": "KOL-2019-03-2270", "tray": "review", "candidates": [ { "answer_id": "CONT-317-003", "score": 0.7442665100097656, "sibling_score": 0.7442665100097656, "answer_score": null, "sibling_qid": "MUM-2026-05-3170-Q005", "sibling_text": "motor came after rewinding no all terminals signs erased how will you connect", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Continuity to confirm terminal identity after overhaul or rewind", "cross_family": false }, { "answer_id": "IM-GEN-B-001", "score": 0.7140986323356628, "sibling_score": 0.7140986323356628, "answer_score": null, "sibling_qid": "CHE-2025-07-0266-Q006", "sibling_text": "single phase motor ckt diagram", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Single-phase induction motor working, starting and capacitor purpose", "cross_family": false }, { "answer_id": "REV-MOT-BF67-001", "score": 0.6952369213104248, "sibling_score": 0.6952369213104248, "answer_score": null, "sibling_qid": "KOC-2025-07-1553-Q001", "sibling_text": "single phase motor reverse wire connection", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "How do you reverse a single-phase induction motor — what is the wiring connection?", "cross_family": false } ] }, { "qid": "KOL-2019-03-2271-Q004", "text": "Dol starter drawing more amps, than before is there any setting there to do adjustments", "family": "Electrical - Motors & Starters", "subtopic": "DOL Starter", "tid": "KOL-2019-03-2271", "tray": "review", "candidates": [ { "answer_id": "STARTER-DEC-B-002", "score": 0.7287982106208801, "sibling_score": 0.7287982106208801, "answer_score": null, "sibling_qid": "KOC-2024-11-1425-Q001", "sibling_text": "dol starting current how much", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Why a starter is needed & reducing starting current", "cross_family": false }, { "answer_id": "STARTER-DEC-B-003", "score": 0.6959623694419861, "sibling_score": 0.6959623694419861, "answer_score": 0.514326012134552, "sibling_qid": "KOC-2024-10-1409-Q002", "sibling_text": "what is the current in dol starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "DOL starter — use, current, range and limits", "cross_family": false }, { "answer_id": "STR-DEC-A-001", "score": 0.6891198754310608, "sibling_score": 0.6891198754310608, "answer_score": null, "sibling_qid": "KOC-2024-11-1430-Q001", "sibling_text": "dol starter diagram current value", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false } ] }, { "qid": "KOL-2019-03-2273-Q005", "text": "Dont remember And of course lot of cross questions in each.", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOL-2019-03-2273", "tray": "review", "candidates": [ { "answer_id": "A6-NSEC-005", "score": 0.6969678401947021, "sibling_score": 0.6969678401947021, "answer_score": null, "sibling_qid": "MUM-2024-11-0222-Q002", "sibling_text": "seemp all parts cross questions", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP — Part I, II & III", "cross_family": true }, { "answer_id": "FIRE-P01-01", "score": 0.6873714923858643, "sibling_score": 0.6873714923858643, "answer_score": null, "sibling_qid": "MUM-2023-11-0145-Q005", "sibling_text": "hypermist many cross questions", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist / water-mist system — draw and explain the machinery-space arrangement and normal working", "cross_family": true }, { "answer_id": "VIT-MECH-C-001", "score": 0.6692754626274109, "sibling_score": 0.6692754626274109, "answer_score": null, "sibling_qid": "CHE-2026-05-0552-Q004", "sibling_text": "vit many cross question", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "MAN B&W MC VIT — varying the start of injection on a helix pump", "cross_family": true } ] }, { "qid": "KOL-2019-03-2274-Q002", "text": "Brushless alternator maintenance.", "family": "Electrical - Generator & Alternator", "subtopic": "Brushless Alternator", "tid": "KOL-2019-03-2274", "tray": "review", "candidates": [ { "answer_id": "BL-ALT-C-004", "score": 0.8414033651351929, "sibling_score": 0.8414033651351929, "answer_score": 0.6223052740097046, "sibling_qid": "KOL-2019-05-2286-Q001", "sibling_text": "brushless alternator periodic maintenance", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Brushless alternator / excitation maintenance", "cross_family": false }, { "answer_id": "BL-ALT-C-001", "score": 0.819174587726593, "sibling_score": 0.819174587726593, "answer_score": null, "sibling_qid": "KOL-2018-05-2195-Q001", "sibling_text": "alternator everything why brushless advantage maintenance", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Electrical advantages of brushless excitation over brushed / static", "cross_family": false }, { "answer_id": "BRUSHALT-A-001", "score": 0.7750939726829529, "sibling_score": 0.7750939726829529, "answer_score": null, "sibling_qid": "KOL-2019-10-2338-Q002", "sibling_text": "brushless alternator maintenence exitation system", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01 · Working principle of the brushless alternator / brushless excitation systemHigh", "cross_family": false } ] }, { "qid": "KOL-2019-03-2275-Q001", "text": "which type of ships?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2019-03-2275", "tray": "review", "candidates": [ { "answer_id": "LLST-AB-001", "score": 0.8270497918128967, "sibling_score": 0.8270497918128967, "answer_score": 0.5176200807094574, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8018587231636047, "sibling_score": 0.8018587231636047, "answer_score": 0.5277269810438155, "sibling_qid": "MUM-2026-02-0731-Q002", "sibling_text": "what type of ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.768257200717926, "sibling_score": 0.768257200717926, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false } ] }, { "qid": "KOL-2019-03-2275-Q006", "text": "Solas regulation in detail for AVR.", "family": "Electrical - Generator & Alternator", "subtopic": "AVR / Excitation", "tid": "KOL-2019-03-2275", "tray": "review", "candidates": [ { "answer_id": "AVR-EXC-H-004", "score": 0.7024335265159607, "sibling_score": 0.7024335265159607, "answer_score": 0.46342475414276124, "sibling_qid": "MUM-2026-06-3456-Q011", "sibling_text": "solas regulation on avr", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "SOLAS / Class requirements for AVR voltage regulation", "cross_family": false }, { "answer_id": "SOLAS12-BC-B-002", "score": 0.4035505563020706, "sibling_score": null, "answer_score": 0.4035505563020706, "sibling_qid": "", "sibling_text": "solas chapter xii the 14 regulations list reg 1 definitions reg 2 application", "sibling_family": "", "via": "answer_title", "answer_title": "SOLAS Chapter XII — the 14 regulations (list)", "cross_family": false }, { "answer_id": "MOB-MKR-005", "score": 0.3745002031326294, "sibling_score": null, "answer_score": 0.3745002031326294, "sibling_qid": "", "sibling_text": "what is the solas requirement and regulation for the mob marker solas iii 7 1 3 is the regulation quote it by number not less than half of all lifebuoys self igniting lights lsa 2 1 2", "sibling_family": "", "via": "answer_title", "answer_title": "What is the SOLAS requirement and regulation for the MOB marker?", "cross_family": false } ] }, { "qid": "KOL-2019-03-2275-Q010", "text": "Maintenance of Navigation lights and safties regarding same. Internal:Advantages of High voltage system. And finally the golden words you are passed", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Lifeboat / Davit / LSA", "tid": "KOL-2019-03-2275", "tray": "new", "candidates": [ { "answer_id": "LT-SRC-009", "score": 0.6184518337249756, "sibling_score": 0.6184518337249756, "answer_score": 0.4845312535762787, "sibling_qid": "KOC-2025-11-1622-Q011", "sibling_text": "navigation light circuit what is the important safety in it", "sibling_family": "", "via": "sibling", "answer_title": "Draw and explain the nav-light circuit, fault indication and fuse-failure alarm", "cross_family": false }, { "answer_id": "LT-SRC-010", "score": 0.6115527153015137, "sibling_score": 0.6115527153015137, "answer_score": 0.5397748172283172, "sibling_qid": "KOC-2025-07-1540-Q004", "sibling_text": "navigational lights safeties", "sibling_family": "", "via": "sibling", "answer_title": "What are the important safeties and special features of navigation lights?", "cross_family": false }, { "answer_id": "NER-HV-P04-001", "score": 0.6008906960487366, "sibling_score": 0.6008906960487366, "answer_score": null, "sibling_qid": "KOL-2024-06-2715-Q007", "sibling_text": "hv system additional safeties ner importance", "sibling_family": "", "via": "sibling", "answer_title": "What an NER is, where it is used, and why it is fitted in HV systems", "cross_family": false } ] }, { "qid": "KOL-2019-03-2276-Q005", "text": "why dc is coming back again to industry", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Active / Reactive / Apparent Power", "tid": "KOL-2019-03-2276", "tray": "new", "candidates": [ { "answer_id": "DCP-PPC-003", "score": 0.3775256872177124, "sibling_score": 0.3775256872177124, "answer_score": 0.22300762683153152, "sibling_qid": "KOC-2025-06-0614-Q003", "sibling_text": "dcp working", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "C3 — DCP — General Working, Advantages, Disadvantages & Common Issues", "cross_family": true }, { "answer_id": "EPC-P01-06", "score": 0.3592223525047302, "sibling_score": 0.3592223525047302, "answer_score": 0.21980979442596435, "sibling_qid": "KOC-2024-11-0458-Q012", "sibling_text": "do u produce dc onboard then how u get dc", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Do we produce DC on board? Sources, the 24/12-volt arrangement, and where DC is used", "cross_family": false }, { "answer_id": "DCP-FIXED-A-001", "score": 0.35746604204177856, "sibling_score": 0.35746604204177856, "answer_score": null, "sibling_qid": "CHE-2026-05-0598-Q003", "sibling_text": "fixed dcp explain everything", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Draw and explain the fixed DCP/dry-powder deck fire-fighting system", "cross_family": true } ] }, { "qid": "KOL-2019-03-3218-Q002", "text": "scoring marks on generator bottom end bearing: your action", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Decarb Checks / Connecting Rod / Bottom End Bearing", "tid": "KOL-2019-03-3218", "tray": "new", "candidates": [ { "answer_id": "CRB-012", "score": 0.5784910917282104, "sibling_score": 0.5784910917282104, "answer_score": 0.3231522664427757, "sibling_qid": "KOL-2020-03-3980-Q002", "sibling_text": "scoring on conrod bottom end bolts action", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "You find scoring on the connecting rod bottom-end bolts. What action do you take?", "cross_family": true }, { "answer_id": "AEDEC-291-003", "score": 0.4995851516723633, "sibling_score": 0.4995851516723633, "answer_score": null, "sibling_qid": "KOL-2018-08-3182-Q003", "sibling_text": "checks after generator decarb", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "3. Pre-start checks after decarb / recommissioning", "cross_family": false }, { "answer_id": "BEB-C-002", "score": 0.48720303177833557, "sibling_score": 0.48720303177833557, "answer_score": null, "sibling_qid": "KOL-2019-03-3223-Q001", "sibling_text": "bottom end brg has scoring marks no spares onboard action as second engineer", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bottom end bearing damaged, no spare — action to reach port without damaging the pin", "cross_family": true } ] }, { "qid": "KOL-2019-03-3218-Q006", "text": "don't remember rest question but he asked mostly related to function 3", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOL-2019-03-3218", "tray": "review", "candidates": [ { "answer_id": "SEEMP-123-B-001", "score": 0.6597394347190857, "sibling_score": 0.6597394347190857, "answer_score": null, "sibling_qid": "KOC-2026-03-0880-Q002", "sibling_text": "function 3 contents", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SEEMP Part III — the ship's operational carbon-intensity (CII) plan", "cross_family": true }, { "answer_id": "UNL-330-001", "score": 0.6107789874076843, "sibling_score": 0.6107789874076843, "answer_score": null, "sibling_qid": "KOL-2022-04-1673-Q005", "sibling_text": "3 function of unloder x que", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "What is the function of the main air compressor unloader?", "cross_family": true }, { "answer_id": "IMO-CODES-P03-002", "score": 0.5966987013816833, "sibling_score": 0.5966987013816833, "answer_score": null, "sibling_qid": "MUM-2026-03-0815-Q003", "sibling_text": "which function", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": false } ] }, { "qid": "KOL-2019-03-3222-Q005", "text": "Steering gear hunting and fail to achieve 28 sec criteria what causes and action. Dear frnds on 12 march there were 13 guys who appeared for exam and only 4 of my frnds including me has posted that day questions. Today also 32 candidates are appearing for exam its request to them that please post questions which will help us only . Thanks", "family": "Steering Gear & Hydraulics", "subtopic": "Steering Going 35-30 Slow", "tid": "KOL-2019-03-3222", "tray": "review", "candidates": [ { "answer_id": "STEER-055-A-003", "score": 0.6924697756767273, "sibling_score": 0.6924697756767273, "answer_score": null, "sibling_qid": "KOL-2021-10-0558-Q008", "sibling_text": "hunting in steering gear reasons", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Hunting gear, floating lever and buffer spring", "cross_family": false }, { "answer_id": "STEER-055-A-004", "score": 0.6853153109550476, "sibling_score": 0.6853153109550476, "answer_score": null, "sibling_qid": "KOC-2021-07-1764-Q007", "sibling_text": "steering gear takes more time to respond after giving signal from bridge reasons thank you each and everyone for posting questions and helping wish you all the very best", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Hydraulic faults — air, sluggish response, locking, leakage", "cross_family": false }, { "answer_id": "STEER-055-A-001", "score": 0.6740146279335022, "sibling_score": 0.6740146279335022, "answer_score": null, "sibling_qid": "MUM-2026-05-3347-Q002", "sibling_text": "steering gear safeties x questions", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Steering gear — construction, types and working", "cross_family": false } ] }, { "qid": "KOL-2019-03-3224-Q004", "text": "boiler for 3 months preservation.", "family": "Boilers - Operations & Firing", "subtopic": "Boiler Cooling Down", "tid": "KOL-2019-03-3224", "tray": "new", "candidates": [ { "answer_id": "LWL-001", "score": 0.599085807800293, "sibling_score": 0.599085807800293, "answer_score": null, "sibling_qid": "KOL-2026-03-2978-Q001", "sibling_text": "boiler 3 elements controller", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Explain three-element boiler water level control — the three elements, how it removes swell and shrinkage, and how the PID works", "cross_family": false }, { "answer_id": "ACC-603-001", "score": 0.5646854043006897, "sibling_score": 0.5646854043006897, "answer_score": null, "sibling_qid": "KOL-2020-07-1538-Q004", "sibling_text": "3 boiler control system", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "The automatic combustion control system — how it works, the start sequence, and the emergency arrangement", "cross_family": false }, { "answer_id": "BFM-330-001", "score": 0.5505857467651367, "sibling_score": 0.5505857467651367, "answer_score": null, "sibling_qid": "MUM-2025-12-2508-Q005", "sibling_text": "3e tell boiler not firing what action as 2e", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler flame failure or burner not firing — troubleshooting", "cross_family": false } ] }, { "qid": "KOL-2019-03-3225-Q002", "text": "What all work you have done? He chose MAC from my list of ME, AE, purifier, boiler, Mac.. How to check bumping clearence in MAC? Whats the typical value? What if more or less? Remedy.", "family": "Air Compressor", "subtopic": "Reciprocating Compressor", "tid": "KOL-2019-03-3225", "tray": "new", "candidates": [ { "answer_id": "MAC-598-003", "score": 0.5734745264053345, "sibling_score": 0.5734745264053345, "answer_score": null, "sibling_qid": "MUM-2023-09-2744-Q001", "sibling_text": "mac not filling up the air bottle all checks and action", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "The compressor is not filling the bottle, or is taking longer than usual, or running continuously on low amps — checks and actions as 2/E", "cross_family": false }, { "answer_id": "ICAC-299-001", "score": 0.5474234223365784, "sibling_score": 0.5474234223365784, "answer_score": null, "sibling_qid": "KOL-2022-07-1922-Q007", "sibling_text": "what mc s you worked i told piston overhauling no any other one yes i told mac overhauling 7 intercooler function and construction", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Purpose and function of the intercooler and aftercooler", "cross_family": false }, { "answer_id": "MAC-353-012", "score": 0.5470921993255615, "sibling_score": 0.5470921993255615, "answer_score": 0.41579512059688567, "sibling_qid": "CHE-2026-05-0529-Q007", "sibling_text": "mac checks after overhaul", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Checks carried out on the main air compressor after overhaul", "cross_family": false } ] }, { "qid": "KOL-2019-03-3225-Q004", "text": "Why TBN value different from aux engine to main engine. What all values, and wht represent thise values?", "family": "NDT & Material Testing", "subtopic": "TAN / TBN", "tid": "KOL-2019-03-3225", "tray": "new", "candidates": [ { "answer_id": "LO-TEST-P01-004", "score": 0.5208765268325806, "sibling_score": 0.5208765268325806, "answer_score": 0.3735799938440323, "sibling_qid": "KOL-2024-11-1956-Q006", "sibling_text": "definition of tbn and tan and what is the value of tbn in an auxiliary boiler", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "TBN, BN, TAN, SAN and the SAE grade", "cross_family": true }, { "answer_id": "CYL-LUB-B-003", "score": 0.45797762274742126, "sibling_score": 0.45797762274742126, "answer_score": null, "sibling_qid": "KOL-2021-07-3428-Q005", "sibling_text": "tbn calculation", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "BN / TBN selection and sulphur matching (HSFO, VLSFO, SECA)", "cross_family": true }, { "answer_id": "TURBO-CS-P03-015", "score": 0.43331044912338257, "sibling_score": 0.43331044912338257, "answer_score": null, "sibling_qid": "KOL-2021-11-3490-Q007", "sibling_text": "t c o h of main engine", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Overhaul: condition-based triggers and rotor balancing", "cross_family": true } ] }, { "qid": "KOL-2019-03-3225-Q005", "text": "Did you have RO plant? Fwg salinity increased, how to reduce? How the vaccume is created and controlled?", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "KOL-2019-03-3225", "tray": "new", "candidates": [ { "answer_id": "BWTEST-A-002", "score": 0.573877215385437, "sibling_score": 0.573877215385437, "answer_score": null, "sibling_qid": "MUM-2026-06-3365-Q004", "sibling_text": "action to reduce boiler salinity", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What does high boiler-water chloride, salinity or TDS indicate, and what action is required?", "cross_family": true }, { "answer_id": "FWG-RO-001", "score": 0.5620183348655701, "sibling_score": 0.5620183348655701, "answer_score": 0.4492178738117218, "sibling_qid": "MUM-2026-07-3709-Q006", "sibling_text": "fresh water generator not getting vacuum why any 6 reasons", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "How is vacuum created in the FWG, why does it run under vacuum, and what if the vacuum will not come?", "cross_family": false }, { "answer_id": "VAC-COND-002", "score": 0.5501211285591125, "sibling_score": 0.5501211285591125, "answer_score": null, "sibling_qid": "KOL-2026-07-4255-Q006", "sibling_text": "fresh water generator not getting vaccum why any 6 reasons", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Low vacuum, suction loss and failure to build vacuum — the reasons", "cross_family": false } ] }, { "qid": "KOL-2019-03-3227-Q002", "text": "induction motor overhaul", "family": "Electrical - Motors & Starters", "subtopic": "Motor Not Starting", "tid": "KOL-2019-03-3227", "tray": "review", "candidates": [ { "answer_id": "IR-TEST-B-016", "score": 0.8012085556983948, "sibling_score": 0.8012085556983948, "answer_score": 0.5726915389299393, "sibling_qid": "KOC-2021-07-1137-Q005", "sibling_text": "induction motor overhaul and ir test procedures", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Post-overhaul motor testing — proving it good without coupling to load", "cross_family": false }, { "answer_id": "IRT-C-011", "score": 0.7820022702217102, "sibling_score": 0.7820022702217102, "answer_score": null, "sibling_qid": "KOC-2022-07-1186-Q006", "sibling_text": "low insulation motor overhaul", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Low IR — causes, what to check, restoring it", "cross_family": false }, { "answer_id": "ROTSTAT-C-002", "score": 0.754082977771759, "sibling_score": 0.754082977771759, "answer_score": 0.5200469851493835, "sibling_qid": "MUM-2024-06-1434-Q006", "sibling_text": "motor overhaul checks in rotor and stator", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Rotor & stator overhaul and inspection checks", "cross_family": false } ] }, { "qid": "KOL-2019-03-3227-Q003", "text": "air compressor seize how to know it and at which it seized and which all part can be seized", "family": "Air Compressor", "subtopic": "Reciprocating Compressor", "tid": "KOL-2019-03-3227", "tray": "review", "candidates": [ { "answer_id": "MAC-598-007", "score": 0.6881936192512512, "sibling_score": 0.6881936192512512, "answer_score": 0.5785969793796539, "sibling_qid": "MUM-2025-12-2898-Q010", "sibling_text": "main air compressor piston siezed what is the causes", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "The main air compressor piston has seized — what are the causes?", "cross_family": false }, { "answer_id": "UNL-330-004", "score": 0.6510433554649353, "sibling_score": 0.6510433554649353, "answer_score": null, "sibling_qid": "KOC-2025-08-1937-Q013", "sibling_text": "compressor unloader faulty during maneuvering actions taken", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "The main air compressor unloader is faulty during manoeuvring — what action do you take?", "cross_family": false }, { "answer_id": "ICAC-299-008", "score": 0.6468689441680908, "sibling_score": 0.6468689441680908, "answer_score": null, "sibling_qid": "KOL-2017-03-1848-Q009", "sibling_text": "air compressor intercooler bursting disc have give way how to run compressor", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Bursting disc gives way: running the compressor safely", "cross_family": false } ] }, { "qid": "KOL-2019-03-3227-Q005", "text": "A/E bottom end brg clearance how to check", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Decarb Checks / Connecting Rod / Bottom End Bearing", "tid": "KOL-2019-03-3227", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-007", "score": 0.661055326461792, "sibling_score": 0.661055326461792, "answer_score": 0.46729102134704587, "sibling_qid": "MUM-2026-05-3331-Q003", "sibling_text": "how to take bottom end bearing clearance of ae", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE big-end / bottom-end bearing — inspection, bedding, nip and crush", "cross_family": false }, { "answer_id": "AECR-651-004", "score": 0.6554694771766663, "sibling_score": 0.6554694771766663, "answer_score": 0.5144882380962371, "sibling_qid": "MUM-2026-05-3226-Q001", "sibling_text": "how will you take the bottom end bearing clearance of ae without removing bearing", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "How do you inspect the bottom-end bearing, and how do you take the AE big-end clearance without removing it?", "cross_family": false }, { "answer_id": "XHD-BRG-B-004", "score": 0.6185299754142761, "sibling_score": 0.6185299754142761, "answer_score": null, "sibling_qid": "MUM-2026-05-3265-Q007", "sibling_text": "bottom end cross head bearing clearance how to take", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Measuring crosshead bearing and guide-shoe clearances", "cross_family": false } ] }, { "qid": "KOL-2019-04-0282-Q004", "text": "Welding of aluminium, how ?", "family": "Workshop & Welding", "subtopic": "Welding / NDT / Materials", "tid": "KOL-2019-04-0282", "tray": "review", "candidates": [ { "answer_id": "WELD-B-001", "score": 0.749332070350647, "sibling_score": 0.749332070350647, "answer_score": 0.5530666053295136, "sibling_qid": "MUM-2021-06-2129-Q001", "sibling_text": "aluminium welding difficulties and procedures", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding & crack-repair of aluminium and cast iron, including metal stitching", "cross_family": false }, { "answer_id": "WELD-B-004", "score": 0.7143665552139282, "sibling_score": 0.7143665552139282, "answer_score": 0.534448567032814, "sibling_qid": "KOL-2025-07-3814-Q005", "sibling_text": "how to join aluminium with steel explosion welding", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Joining dissimilar metals — aluminium to steel, and explosive welding", "cross_family": false }, { "answer_id": "WELD-PATM-005", "score": 0.7073498368263245, "sibling_score": 0.7073498368263245, "answer_score": null, "sibling_qid": "KOL-2021-12-3501-Q003", "sibling_text": "aluminium welding tig welding and mig welding difference", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "TIG vs MIG – differences, uses, advantages", "cross_family": false } ] }, { "qid": "KOL-2019-04-1869-Q003", "text": "a frame,entabulature,bed plate diagram & show,bed plate 3 main function", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Bedplate / A-Frame", "tid": "KOL-2019-04-1869", "tray": "new", "candidates": [ { "answer_id": "FWFB-P02-007", "score": 0.553188145160675, "sibling_score": 0.553188145160675, "answer_score": null, "sibling_qid": "MUM-2026-03-2952-Q007", "sibling_text": "what type of bedplate", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Transverse and longitudinal girders: arrangement and purpose", "cross_family": false }, { "answer_id": "CHK-330-004", "score": 0.5297138094902039, "sibling_score": 0.5297138094902039, "answer_score": 0.423700900375843, "sibling_qid": "MUM-2026-03-1306-Q014S4", "sibling_text": "bed plate parts choking arrangement alignment of shaft intermediate shaft take out procedure", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Chocking arrangement on the main engine bedplate seating", "cross_family": false }, { "answer_id": "BED-CHOCK-001", "score": 0.5095915198326111, "sibling_score": 0.5095915198326111, "answer_score": null, "sibling_qid": "MUM-2023-08-0952-Q004", "sibling_text": "how to fix bed plate on ship", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "How is the main-engine bedplate fixed to the ship's structure?", "cross_family": false } ] }, { "qid": "KOL-2019-04-1869-Q007", "text": "what is term \"risk \" in engineering term", "family": "ISM Code", "subtopic": "Risk Assessment", "tid": "KOL-2019-04-1869", "tray": "new", "candidates": [ { "answer_id": "LVC-577-001", "score": 0.6233673691749573, "sibling_score": 0.6233673691749573, "answer_score": 0.39077037274837495, "sibling_qid": "KOL-2026-05-0060-Q006", "sibling_text": "likelihood of risk in engineering terms", "sibling_family": "", "via": "sibling", "answer_title": "Define likelihood and consequence in risk assessment", "cross_family": false }, { "answer_id": "RA-MGMT-A-001", "score": 0.6219990253448486, "sibling_score": 0.6219990253448486, "answer_score": 0.4080535680055618, "sibling_qid": "KOL-2021-03-3388-Q001", "sibling_text": "what is risk in engineering terms", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "What is risk, what is hazard, and what is risk assessment?", "cross_family": true }, { "answer_id": "ISM-AUD-P02-005", "score": 0.5257664918899536, "sibling_score": 0.5257664918899536, "answer_score": null, "sibling_qid": "MUM-2026-09-3885-Q011", "sibling_text": "risk assessment explain", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM and maintenance: PMS, risk assessment and critical spares", "cross_family": false } ] }, { "qid": "KOL-2019-04-1869-Q008", "text": "refer compressor lp cutout happened u charge refrigerant after 2 days again lp cutout happening as 2nd eng what I will do", "family": "Refrigeration & AC", "subtopic": "HP / LP Trip", "tid": "KOL-2019-04-1869", "tray": "review", "candidates": [ { "answer_id": "CCSC-314-001", "score": 0.7143643498420715, "sibling_score": 0.7143643498420715, "answer_score": 0.5115611791610718, "sibling_qid": "MUM-2025-11-1220-Q002", "sibling_text": "refer compressor short cycling reasons undercharge and all reasons", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Refrigeration compressor short cycling — meaning, causes and corrective action", "cross_family": false }, { "answer_id": "REEF-COMP-001", "score": 0.6802470088005066, "sibling_score": 0.6802470088005066, "answer_score": 0.525541540980339, "sibling_qid": "MUM-2026-05-3285-Q008", "sibling_text": "refer compressor charging precautions", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Reefer/AC compressor safeties and cut-outs — safety valve, HP and LP cut-outs", "cross_family": false }, { "answer_id": "REEF-COMP-002", "score": 0.6792348027229309, "sibling_score": 0.6792348027229309, "answer_score": null, "sibling_qid": "KOC-2026-03-1731-Q006", "sibling_text": "reefer compressor lube oil low pres cut off trip working", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Lube-oil low-pressure / differential-pressure trip — how it works, tests and sets", "cross_family": false } ] }, { "qid": "KOL-2019-04-1869-Q010", "text": "after joining ship by looking which certificate u will know the classification society Rest forgot", "family": "Surveys - Statutory", "subtopic": "PSC / Flag / RO / CIC / MoU", "tid": "KOL-2019-04-1869", "tray": "review", "candidates": [ { "answer_id": "CERT-LIST-P01-001", "score": 0.8087868094444275, "sibling_score": 0.8087868094444275, "answer_score": null, "sibling_qid": "KOL-2020-06-3340-Q004", "sibling_text": "which certificate will tell u about the class to which ship is classified", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "List the statutory certificates carried onboard a ship.", "cross_family": false }, { "answer_id": "IACS-324-002", "score": 0.7877877950668335, "sibling_score": 0.7877877950668335, "answer_score": null, "sibling_qid": "KOC-2023-05-0192-Q004", "sibling_text": "y ship need to be classed classification society functions", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "2. What is a classification society, why does a ship need class, and what are its functions?", "cross_family": false }, { "answer_id": "CERT-LIST-P02-005", "score": 0.7333175539970398, "sibling_score": 0.7333175539970398, "answer_score": 0.5984785258769989, "sibling_qid": "MUM-2026-06-3395-Q001", "sibling_text": "why class certificate is there for ship", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Class certificate / classification certificate", "cross_family": false } ] }, { "qid": "KOL-2019-04-2281-Q002", "text": "safety precautions and preparation before working on high voltage system.", "family": "Risk & Safety Management", "subtopic": "Permit to Work / Enclosed Space", "tid": "KOL-2019-04-2281", "tray": "review", "candidates": [ { "answer_id": "HV-SYS-P05-002", "score": 0.7496354579925537, "sibling_score": 0.7496354579925537, "answer_score": 0.6297422349452972, "sibling_qid": "MUM-2026-01-1913-Q003", "sibling_text": "safety taken before working on high voltage", "sibling_family": "", "via": "sibling", "answer_title": "Working on the HV system: precautions, isolation and earthing before maintenance", "cross_family": false }, { "answer_id": "CB-ACBVCB-B-001", "score": 0.7144395112991333, "sibling_score": 0.7144395112991333, "answer_score": null, "sibling_qid": "MUM-2023-09-1402-Q004", "sibling_text": "hv safety before doing work vcf and sf6", "sibling_family": "", "via": "sibling", "answer_title": "ACB/main circuit breaker safeties, trips, settings and testing", "cross_family": false }, { "answer_id": "HV-SYS-P04-001", "score": 0.6855530142784119, "sibling_score": 0.6855530142784119, "answer_score": null, "sibling_qid": "KOC-2024-07-1368-Q002", "sibling_text": "safeties to be followed when working in the hv circuit", "sibling_family": "", "via": "sibling", "answer_title": "HV-SYS-P04-001 - HV hazards, advantages and safeties", "cross_family": false } ] }, { "qid": "KOL-2019-04-3229-Q002", "text": "Connecting Rod bearing top half how to do survey. 3 hull painting 4 purifier vertical shaft overhaul 5 hydraulic jack leaking while opening cylinder head", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Connecting Rod & Bolts", "tid": "KOL-2019-04-3229", "tray": "review", "candidates": [ { "answer_id": "BEB-B-002", "score": 0.7110539078712463, "sibling_score": 0.7110539078712463, "answer_score": null, "sibling_qid": "KOL-2024-03-3680-Q001", "sibling_text": "preparation for me bottom end bearing survey required tools how to take weight of xhd piston rod how to inspect top bearing shell after ovhl how to chk clearance", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bottom End Bearing — Clearance Measurement", "cross_family": false }, { "answer_id": "MN-BRG-C-001", "score": 0.7081272006034851, "sibling_score": 0.7081272006034851, "answer_score": null, "sibling_qid": "KOL-2026-01-4079-Q004", "sibling_text": "during main bearing survey top half removed how to check journal condition without removing bottom half", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Opening, removing and overhauling a main bearing", "cross_family": false }, { "answer_id": "XHD-BRG-C-001", "score": 0.7014108300209045, "sibling_score": 0.7014108300209045, "answer_score": null, "sibling_qid": "KOL-2025-11-3882-Q001", "sibling_text": "how to present x head bearing for survey how to hang piston what all check to be done", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "A. Present the crosshead bottom shell for survey, piston in place", "cross_family": false } ] }, { "qid": "KOL-2019-04-3231-Q005", "text": "Checks on Main Engine after Grounding.", "family": "2-Stroke - Operations & Casualty", "subtopic": "Casualty / Emergency Stop", "tid": "KOL-2019-04-3231", "tray": "review", "candidates": [ { "answer_id": "CAS-ESTOP-002", "score": 0.6793068051338196, "sibling_score": 0.6793068051338196, "answer_score": 0.6198307454586028, "sibling_qid": "KOL-2018-04-3136-Q003", "sibling_text": "ship aground what checks of main engine", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Main-engine checks after grounding, before turning or a kick", "cross_family": false }, { "answer_id": "RWX-CHK-001", "score": 0.6364205479621887, "sibling_score": 0.6364205479621887, "answer_score": null, "sibling_qid": "MUM-2026-06-3370-Q003", "sibling_text": "checks on main engine and auxiliary engine after bad weather and cross questions", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Engine-room and machinery checks before and after rough weather", "cross_family": false }, { "answer_id": "DCB-OVH-002", "score": 0.6352491974830627, "sibling_score": 0.6352491974830627, "answer_score": null, "sibling_qid": "KOL-2023-08-3954-Q006", "sibling_text": "any major overhauling in main engine", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Preparing for a complete unit overhaul or unit survey", "cross_family": false } ] }, { "qid": "KOL-2019-04-3233-Q001", "text": "Cylinder liner cracked how to proceed to port ?", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "KOL-2019-04-3233", "tray": "review", "candidates": [ { "answer_id": "CYL-LINER-P03-004", "score": 0.6941986680030823, "sibling_score": 0.6941986680030823, "answer_score": 0.5488850057125091, "sibling_qid": "KOL-2018-05-1375-Q007", "sibling_text": "liner crack how to reach port what repair u will do on liner on reaching port of u don t have spare one", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Cracked or leaking liner at sea, no spare — isolating the unit and reaching port", "cross_family": false }, { "answer_id": "CCH-590-003", "score": 0.6662067174911499, "sibling_score": 0.6662067174911499, "answer_score": null, "sibling_qid": "KOL-2016-08-2996-Q005", "sibling_text": "cylinder head crack pilot on board how to make port", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "A cylinder head or its cooling jacket is cracked. What is the first indication, what is your action, and how do you make port?", "cross_family": false }, { "answer_id": "CYL-LINER-P03-002", "score": 0.6415069699287415, "sibling_score": 0.6415069699287415, "answer_score": null, "sibling_qid": "MUM-2022-07-0028-Q006", "sibling_text": "liner is cracked and some strands from crane wire are coming out your actions", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Detecting and confirming a cracked or leaking liner — and pinning the unit", "cross_family": false } ] }, { "qid": "KOL-2019-04-3234-Q004", "text": "Rudder inspection", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2019-04-3234", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.7663498520851135, "sibling_score": 0.7663498520851135, "answer_score": 0.5123920172452926, "sibling_qid": "KOL-2019-08-3269-Q005", "sibling_text": "rudder inspections", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "DUS-P5-05", "score": 0.525975376367569, "sibling_score": null, "answer_score": 0.525975376367569, "sibling_qid": "", "sibling_text": "rudder checks and rudder blade tightness leak test in drydock visual checks coating condition cavitation erosion on the blade leading edge propeller side face sacrificial anodes against the approved cathodic protection plan grounding continuity against the approved acceptance criterion plate and weld cracks pintle clearance measured with feeler the numerical acceptance limit is class specific and ", "sibling_family": "", "via": "answer_title", "answer_title": "Rudder checks and rudder-blade tightness/leak test in drydock", "cross_family": false }, { "answer_id": "RUD-DROP-002", "score": 0.5044441610574723, "sibling_score": null, "answer_score": 0.5044441610574723, "sibling_qid": "", "sibling_text": "rudder clearances which where and how taken pintle bush clearance at each pintle top bottom f a and p s on long feeler gauges or pintle od vs bush id by caliper top mid bottom the maximum is the clearance renew the bush at the maker class limit carrier bearing wear down the rudder drop poker trammel gauge hull datum to stock mark against the recorded newbuilding reading", "sibling_family": "", "via": "answer_title", "answer_title": "Rudder clearances: which, where and how taken", "cross_family": false } ] }, { "qid": "KOL-2019-05-0286-Q005", "text": "Flare, from where it originates.", "family": "", "subtopic": "Bulbous Bow", "tid": "KOL-2019-05-0286", "tray": "new", "candidates": [ { "answer_id": "SMK-FUNL-BF01-004", "score": 0.49900680780410767, "sibling_score": 0.49900680780410767, "answer_score": 0.30949235409498216, "sibling_qid": "CHE-2026-09-3929-Q001", "sibling_text": "action spark in funnel ege fire", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "There are sparks from the funnel on arrival in port — what is the reason and your action?", "cross_family": false }, { "answer_id": "RES-MAG-004", "score": 0.47078603506088257, "sibling_score": 0.47078603506088257, "answer_score": null, "sibling_qid": "MUM-2026-06-3421-Q004", "sibling_text": "flashing up", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Field flashing — the procedure, where the battery connects, which terminal, and the precautions", "cross_family": false }, { "answer_id": "PAR-ROLL-003", "score": 0.45791035890579224, "sibling_score": 0.45791035890579224, "answer_score": null, "sibling_qid": "KOL-2018-04-0173-Q003", "sibling_text": "parametric rolling and effect of large flare", "sibling_family": "", "via": "sibling", "answer_title": "03. Why container / car-carrier / Ro-Ro ships, and why not bulk carriers", "cross_family": false } ] }, { "qid": "KOL-2019-05-1451-Q002", "text": "How to measure l.o differential pressure of air condition compressor", "family": "Refrigeration & AC", "subtopic": "Compressor / Leakage / Maintenance", "tid": "KOL-2019-05-1451", "tray": "review", "candidates": [ { "answer_id": "REEF-COMP-002", "score": 0.6697508692741394, "sibling_score": 0.6697508692741394, "answer_score": 0.4772619396448135, "sibling_qid": "KOC-2023-10-1290-Q008", "sibling_text": "refer lo oil differential pr switch working and how it s trip compressor", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Lube-oil low-pressure / differential-pressure trip — how it works, tests and sets", "cross_family": false }, { "answer_id": "REEF-COMP-008", "score": 0.6306071877479553, "sibling_score": 0.6306071877479553, "answer_score": null, "sibling_qid": "KOL-2017-12-3109-Q003", "sibling_text": "refer suction press garage and compressor suc press gauge difference", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Valves, clearances, oil carry-over, refrigerant-in-oil, frosting, tandem valves, cooling — fault checks", "cross_family": false }, { "answer_id": "REF-CYC-001", "score": 0.6197561025619507, "sibling_score": 0.6197561025619507, "answer_score": null, "sibling_qid": "KOC-2026-05-0046-Q006", "sibling_text": "ref flow of refrigerant to compressor location where it enters ref compressor and air compressor difference", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "1. The vapour-compression refrigeration cycle and refrigerant flow", "cross_family": false } ] }, { "qid": "KOL-2019-05-1452-Q005", "text": "Ref system l.o property and additives to be aded", "family": "Refrigeration & AC", "subtopic": "Compressor / Leakage / Maintenance", "tid": "KOL-2019-05-1452", "tray": "new", "candidates": [ { "answer_id": "LO-TEST-P02-001", "score": 0.6127132177352905, "sibling_score": 0.6127132177352905, "answer_score": 0.34005973786115645, "sibling_qid": "KOL-2025-07-4060-Q004", "sibling_text": "additives in l o name and it s properties no properties of l o only properties of additives", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Lube-oil additives; detergency, dispersancy, lubricity and friction modifiers", "cross_family": true }, { "answer_id": "REEF-COMP-004", "score": 0.48515385389328003, "sibling_score": 0.48515385389328003, "answer_score": null, "sibling_qid": "MUM-2026-09-3876-Q007", "sibling_text": "lube oil charging in refer system", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Charging, replenishing and draining compressor lube oil — including with no charging pump", "cross_family": false }, { "answer_id": "FQCC-583-B-011", "score": 0.477744460105896, "sibling_score": 0.477744460105896, "answer_score": 0.3006258338689804, "sibling_qid": "KOL-2019-10-1484-Q010", "sibling_text": "f o additives", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel oil additives — name four, what they do, and what the regulation allows", "cross_family": true } ] }, { "qid": "KOL-2019-05-1453-Q001", "text": "What is vaccum Condenser.", "family": "Heat Exchangers & Coolers", "subtopic": "Condenser Type", "tid": "KOL-2019-05-1453", "tray": "review", "candidates": [ { "answer_id": "VAC-COND-001", "score": 0.6727949380874634, "sibling_score": 0.6727949380874634, "answer_score": 0.5237623751163483, "sibling_qid": "MUM-2025-09-2396-Q003", "sibling_text": "vaccum condenser", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Purpose, working and thermodynamic principle of the vacuum condenser", "cross_family": true }, { "answer_id": "VAC-COND-002", "score": 0.5997236371040344, "sibling_score": 0.5997236371040344, "answer_score": null, "sibling_qid": "MUM-2026-07-3769-Q011", "sibling_text": "vacuum condenser loosed suction reason", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Low vacuum, suction loss and failure to build vacuum — the reasons", "cross_family": false }, { "answer_id": "COPT-BF043-004", "score": 0.5784761905670166, "sibling_score": 0.5784761905670166, "answer_score": 0.5147392272949218, "sibling_qid": "KOC-2021-08-2024-Q009", "sibling_text": "y vaccum is necessary in copt plant extract more work by reducing the condensing temperature he want to here it will increase the temperature diff by keeping vacuum", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "4. Why vacuum is necessary, and signs of falling vacuum", "cross_family": true } ] }, { "qid": "KOL-2019-05-1453-Q002", "text": "What is multi stage turbine.", "family": "", "subtopic": "", "tid": "KOL-2019-05-1453", "tray": "new", "candidates": [ { "answer_id": "COPT-BF043-003", "score": 0.5865303874015808, "sibling_score": 0.5865303874015808, "answer_score": null, "sibling_qid": "MUM-2026-05-3310-Q002", "sibling_text": "copt turbine type and stages", "sibling_family": "Steam & Turbine Plant", "via": "sibling", "answer_title": "3. Starting and running a COPT; bringing No.2 on with No.1 running", "cross_family": false }, { "answer_id": "AC-STAGE-001", "score": 0.5225029587745667, "sibling_score": 0.5225029587745667, "answer_score": 0.4480062961578369, "sibling_qid": "MUM-2025-08-1153-Q006", "sibling_text": "why stages are introduced in compressor", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Why multistage compression — advantages over single-stage", "cross_family": false }, { "answer_id": "SUP-CHG-004", "score": 0.5073920488357544, "sibling_score": 0.5073920488357544, "answer_score": 0.45349644422531127, "sibling_qid": "KOL-2019-10-1492-Q003", "sibling_text": "two stage turbocharging turbocharger efficiency hybrid turbocharger", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Two-stage, multistage, sequential and hybrid turbocharging", "cross_family": false } ] }, { "qid": "KOL-2019-05-1454-Q004", "text": "AE LO pressure not developing, what will u check first as a second engineer? ANSWERED : backlash of gear pump, Asked how will u check backlash in enclosed gear pp?", "family": "Fault Diagnosis & 2/E Actions", "subtopic": "Fault Diagnosis / 2E Action", "tid": "KOL-2019-05-1454", "tray": "review", "candidates": [ { "answer_id": "PCD-P05-03", "score": 0.7757498025894165, "sibling_score": 0.7757498025894165, "answer_score": null, "sibling_qid": "KOL-2018-04-3140-Q004", "sibling_text": "gear pump overhaul n backlash how to check clearance", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Gear pump — construction, working, backlash, tooth profile, safety valve, why not for sea water", "cross_family": true }, { "answer_id": "PCD-P05-04", "score": 0.6570634841918945, "sibling_score": 0.6570634841918945, "answer_score": 0.5641414403915405, "sibling_qid": "MUM-2026-06-3365-Q010", "sibling_text": "gear pump not developing pressure reasons", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Gear pump not developing pressure or not discharging — reasons and rectification", "cross_family": true }, { "answer_id": "PAL-620-001", "score": 0.6513073444366455, "sibling_score": 0.6513073444366455, "answer_score": null, "sibling_qid": "MUM-2026-05-3000-Q010", "sibling_text": "pump alignment how to check", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "How do you check and set the alignment between a pump and its motor? Horizontal centrifugal pump — where the dial gauge goes and what values apply.", "cross_family": true } ] }, { "qid": "KOL-2019-05-1455-Q003", "text": "advantage of axial flow pump over gear pump?", "family": "Pumps - Centrifugal & PD", "subtopic": "Axial Flow Pump", "tid": "KOL-2019-05-1455", "tray": "review", "candidates": [ { "answer_id": "HSAP-583-A-013", "score": 0.6677542328834534, "sibling_score": 0.6677542328834534, "answer_score": 0.5057134449481964, "sibling_qid": "KOL-2020-02-0390-Q012", "sibling_text": "why axial flow pumps are used", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "\"Why are axial flow pumps used?\"", "cross_family": false }, { "answer_id": "PCD-P05-03", "score": 0.6325154900550842, "sibling_score": 0.6325154900550842, "answer_score": null, "sibling_qid": "KOL-2019-04-1869-Q009", "sibling_text": "gearpump material advantages", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Gear pump — construction, working, backlash, tooth profile, safety valve, why not for sea water", "cross_family": false }, { "answer_id": "PCD-P05-02", "score": 0.6242004036903381, "sibling_score": 0.6242004036903381, "answer_score": 0.45695273876190184, "sibling_qid": "KOL-2017-05-1292-Q005", "sibling_text": "why screw p p is preffered over gear pump", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Screw pump — construction, working, types, drive arrangement, clearances, why preferred over gear", "cross_family": false } ] }, { "qid": "KOL-2019-05-1456-Q003", "text": "Boiler safety valve all components and materials of all the components?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2019-05-1456", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.7262348532676697, "sibling_score": 0.7262348532676697, "answer_score": null, "sibling_qid": "MUM-2026-07-3737-Q004", "sibling_text": "boiler type safety valve type lift of safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.7189298272132874, "sibling_score": 0.7189298272132874, "answer_score": null, "sibling_qid": "MUM-2026-05-3289-Q007", "sibling_text": "boiler type make and rating and setting of safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "ACRV-005", "score": 0.7149410247802734, "sibling_score": 0.7149410247802734, "answer_score": null, "sibling_qid": "MUM-2026-06-3357-Q006", "sibling_text": "safety valve boiler types and construction boiler water", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": false } ] }, { "qid": "KOL-2019-05-1456-Q005", "text": "Liner material, piston ring material, if chrome plating then why piston rings wear out way before the cast iron liner?", "family": "2-Stroke - Components (Other)", "subtopic": "Piston Rings", "tid": "KOL-2019-05-1456", "tray": "review", "candidates": [ { "answer_id": "PRING-B-003", "score": 0.7772175669670105, "sibling_score": 0.7772175669670105, "answer_score": null, "sibling_qid": "KOL-2025-12-4075-Q006", "sibling_text": "if liner is chrome coated piston ring coating material", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Material, coating & manufacture", "cross_family": false }, { "answer_id": "CYL-LINER-P02-003", "score": 0.7305994629859924, "sibling_score": 0.7305994629859924, "answer_score": null, "sibling_qid": "KOL-2019-02-3210-Q002", "sibling_text": "how to check liner wear what will be piston ring if liner is chrome plated", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L3 · T044-PART_02-G003High", "cross_family": false }, { "answer_id": "CYL-LINER-P04-006", "score": 0.6848340630531311, "sibling_score": 0.6848340630531311, "answer_score": null, "sibling_qid": "MUM-2022-07-1016-Q008", "sibling_text": "piston piston ring liner material", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Material & manufacturing", "cross_family": false } ] }, { "qid": "KOL-2019-05-1870-Q004", "text": "Primary air and secondary air, definition & purpose One more ques can not remember", "family": "Boilers - Operations & Firing", "subtopic": "Burner Type (Rotary Cup / Pressure Jet)", "tid": "KOL-2019-05-1870", "tray": "new", "candidates": [ { "answer_id": "BFS-257-003", "score": 0.5983134508132935, "sibling_score": 0.5983134508132935, "answer_score": 0.49135624468326566, "sibling_qid": "MUM-2026-06-3590-Q003", "sibling_text": "use of primary and secondary air in boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Primary / secondary flame and the purpose of the air register", "cross_family": false }, { "answer_id": "BURNER-TYPE-002", "score": 0.5576510429382324, "sibling_score": 0.5576510429382324, "answer_score": null, "sibling_qid": "MUM-2026-07-3848-Q007", "sibling_text": "turn down ratio comparison of various types of burner cross questions primary secondary tertiary air", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Burner types compared, and primary, secondary and tertiary air", "cross_family": false }, { "answer_id": "MAST-PVA-001", "score": 0.5341170430183411, "sibling_score": 0.5341170430183411, "answer_score": 0.37666471898555753, "sibling_qid": "KOC-2024-04-1838-Q005", "sibling_text": "primary and secondary means of venting procedure", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Cargo tank venting — primary & secondary means and the regulation", "cross_family": true } ] }, { "qid": "KOL-2019-05-2286-Q002", "text": "Zener barrier,", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOL-2019-05-2286", "tray": "review", "candidates": [ { "answer_id": "EPC-P02-03", "score": 0.6891281008720398, "sibling_score": 0.6891281008720398, "answer_score": 0.4375505745410919, "sibling_qid": "CHE-2026-02-0333-Q002", "sibling_text": "zener barrier", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Where is a zener diode used on board and why — voltage regulator, AVR, clipper — and explain one application in detail.", "cross_family": false }, { "answer_id": "EPC-P02-01", "score": 0.6886656284332275, "sibling_score": 0.6886656284332275, "answer_score": 0.4725635677576065, "sibling_qid": "MUM-2026-03-2019-Q005", "sibling_text": "zener barrier", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a zener diode? Draw its symbol, explain its working principle, and draw and explain its characteristic curve including the zener (breakdown) voltage.", "cross_family": false }, { "answer_id": "HAZ-EX-B-001", "score": 0.62172931432724, "sibling_score": 0.62172931432724, "answer_score": null, "sibling_qid": "CHE-2026-03-0358-Q005", "sibling_text": "zener barrier working in intrinsically safe", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Intrinsically safe (Ex i) equipment — what it is, how it works, where it is used, how you identify it", "cross_family": false } ] }, { "qid": "KOL-2019-05-2286-Q003", "text": "Exi, Exi(a), Exd, Exp equipment where used on tanker and their exact location", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOL-2019-05-2286", "tray": "new", "candidates": [ { "answer_id": "TNK-SAFE-BF26-003", "score": 0.6423946619033813, "sibling_score": 0.6423946619033813, "answer_score": 0.4560477793216705, "sibling_qid": "MUM-2025-08-0423-Q004", "sibling_text": "ex rating of equipment on deck of tanker", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What safeties, including electrical safeties and Ex ratings, are provided on the deck of a tanker?", "cross_family": false }, { "answer_id": "FFF-A-002", "score": 0.5879529714584351, "sibling_score": 0.5879529714584351, "answer_score": null, "sibling_qid": "MUM-2025-05-0277-Q008", "sibling_text": "machinery space fixed fire fighting system used on oil tanker", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fixed firefighting in the engine room and machinery spaces", "cross_family": false }, { "answer_id": "EXD-EXI-A-002", "score": 0.5813281536102295, "sibling_score": 0.5813281536102295, "answer_score": null, "sibling_qid": "KOC-2022-03-0069-Q004", "sibling_text": "explosion proof explain where in tanker", "sibling_family": "", "via": "sibling", "answer_title": "Ex d (flameproof / explosion-proof) — construction, shipboard applications and maintenance", "cross_family": false } ] }, { "qid": "KOL-2019-05-2290-Q001", "text": "What is Exn? Circuit?", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOL-2019-05-2290", "tray": "new", "candidates": [ { "answer_id": "EXD-EXI-A-002", "score": 0.5169429183006287, "sibling_score": 0.5169429183006287, "answer_score": null, "sibling_qid": "MUM-2022-07-1337-Q001", "sibling_text": "exi exd circuit and in detail", "sibling_family": "", "via": "sibling", "answer_title": "Ex d (flameproof / explosion-proof) — construction, shipboard applications and maintenance", "cross_family": false }, { "answer_id": "EEXI-001", "score": 0.49301818013191223, "sibling_score": 0.49301818013191223, "answer_score": null, "sibling_qid": "KOL-2022-09-4012-Q007", "sibling_text": "eexi intrinsic safe circuit cross qsns", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is EEXI? Explain it in full — formula, unit, application, and what an existing ship is", "cross_family": false }, { "answer_id": "HAZ-EX-B-001", "score": 0.4197579026222229, "sibling_score": 0.4197579026222229, "answer_score": 0.3296482965350151, "sibling_qid": "KOL-2025-08-2826-Q003", "sibling_text": "extrisically safe circuit", "sibling_family": "", "via": "sibling", "answer_title": "Intrinsically safe (Ex i) equipment — what it is, how it works, where it is used, how you identify it", "cross_family": false } ] }, { "qid": "KOL-2019-05-2291-Q002", "text": "Dc advantage over Ac", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Active / Reactive / Apparent Power", "tid": "KOL-2019-05-2291", "tray": "new", "candidates": [ { "answer_id": "VFD-INV-P02-005", "score": 0.6169410943984985, "sibling_score": 0.6169410943984985, "answer_score": null, "sibling_qid": "CHE-2026-02-0479-Q010", "sibling_text": "why dc is used instead of ac and how is it converted", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "How do rectifier, DC link and inverter stages convert AC to DC and DC to AC?", "cross_family": false }, { "answer_id": "AVR-EXC-A-001", "score": 0.5637227296829224, "sibling_score": 0.5637227296829224, "answer_score": null, "sibling_qid": "CHE-2025-08-0289-Q003", "sibling_text": "avr why dc is used", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "What is the purpose and function of the AVR?", "cross_family": true }, { "answer_id": "RMS-VAL-005", "score": 0.559104859828949, "sibling_score": 0.559104859828949, "answer_score": null, "sibling_qid": "KOL-2017-03-2113-Q001", "sibling_text": "for same vtg n current which is greater a c or dc", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Why AC is measured onboard in RMS", "cross_family": false } ] }, { "qid": "KOL-2019-05-2292-Q005", "text": "e) Brushless excitation, working with diagram. Value of excitation voltage and current for a dg whose rpm is 720.", "family": "Electrical - Generator & Alternator", "subtopic": "Brushless Alternator", "tid": "KOL-2019-05-2292", "tray": "new", "candidates": [ { "answer_id": "BRUSHALT-A-001", "score": 0.6182042956352234, "sibling_score": 0.6182042956352234, "answer_score": 0.43306843638420106, "sibling_qid": "KOL-2026-02-2961-Q001", "sibling_text": "brushless excitation working", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01 · Working principle of the brushless alternator / brushless excitation systemHigh", "cross_family": false }, { "answer_id": "BL-ALT-C-002", "score": 0.583230197429657, "sibling_score": 0.583230197429657, "answer_score": null, "sibling_qid": "KOL-2026-05-4243-Q010", "sibling_text": "brushless excitation system decider question", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "How to identify onboard that an alternator is brushless", "cross_family": false }, { "answer_id": "DIODESO-002", "score": 0.5772501826286316, "sibling_score": 0.5772501826286316, "answer_score": null, "sibling_qid": "KOL-2016-08-2063-Q001", "sibling_text": "brushless excitation problems diode shrt ckt", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Explain the rotating diodes in a brushless alternator and the problems that arise in the brushless excitation system, including diode short circuit", "cross_family": false } ] }, { "qid": "KOL-2019-05-2293-Q005", "text": "Alternator protection. How to test them infront of surveyor.", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator Protection", "tid": "KOL-2019-05-2293", "tray": "review", "candidates": [ { "answer_id": "IR-TEST-305-001", "score": 0.7118776440620422, "sibling_score": 0.7118776440620422, "answer_score": 0.4999014288187027, "sibling_qid": "MUM-2026-01-1859-Q007", "sibling_text": "insulation test in alternator with all precautions", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Carrying out the IR (megger) test on an alternator winding", "cross_family": false }, { "answer_id": "RPT-C-002", "score": 0.6921679377555847, "sibling_score": 0.6921679377555847, "answer_score": null, "sibling_qid": "KOL-2023-04-2651-Q006", "sibling_text": "alternator protections x question how to test ocit reverse power relay what is the set point of reverse power relay", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Testing & trying out the reverse power trip — onboard, at survey, and when it fails", "cross_family": false }, { "answer_id": "ALT-MAINT-A-001", "score": 0.6898090243339539, "sibling_score": 0.6898090243339539, "answer_score": null, "sibling_qid": "MUM-2026-05-3168-Q005", "sibling_text": "alternator maintenance before survey", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Routine maintenance & care of a ship’s alternator", "cross_family": false } ] }, { "qid": "KOL-2019-05-2294-Q004", "text": "Steering gear motor safeties I told him about only 1 trip and rest about alarms he said how over voltage will not give alarm I told him about that secondary is unearthed then they said what about current in the line how it is flowing!! Lots of cross questions again", "family": "Electrical - Motors & Starters", "subtopic": "Single Phasing", "tid": "KOL-2019-05-2294", "tray": "review", "candidates": [ { "answer_id": "SGM-ELEC-001", "score": 0.7648061513900757, "sibling_score": 0.7648061513900757, "answer_score": 0.6614212870597839, "sibling_qid": "MUM-2024-12-1475-Q005", "sibling_text": "steering gear motor trip after telling short circuit trip i told all alarms and trips", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What are the safeties, alarms and trips on the steering gear motor as per SOLAS — and how do you activate the safematic?", "cross_family": false }, { "answer_id": "SGM-ELEC-003", "score": 0.7242110371589661, "sibling_score": 0.7242110371589661, "answer_score": 0.6082093477249145, "sibling_qid": "MUM-2026-02-0791-Q018", "sibling_text": "why only alarm not trip incase of steeing gear motor overload", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Why does the steering gear motor have only an overload alarm and not an overload trip — and what is the overload trip percentage?", "cross_family": false }, { "answer_id": "SGM-ELEC-004", "score": 0.7078471779823303, "sibling_score": 0.7078471779823303, "answer_score": null, "sibling_qid": "KOL-2020-02-1517-Q005", "sibling_text": "steering gear motor taking more current reasons", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "The steering gear motor is taking high current or is overloaded — what are the reasons, apart from the electrical side?", "cross_family": false } ] }, { "qid": "KOL-2019-05-3236-Q006", "text": "Corrgugated Furnace Survey", "family": "Boilers - Construction & Components", "subtopic": "Boiler Shell / Furnace Construction", "tid": "KOL-2019-05-3236", "tray": "new", "candidates": [ { "answer_id": "FURN-REF-003", "score": 0.638001024723053, "sibling_score": 0.638001024723053, "answer_score": 0.3938080310821533, "sibling_qid": "KOL-2023-02-3592-Q003", "sibling_text": "boiler furnace survey", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Boiler refractory purpose, defects, failure reasons, maintenance and survey", "cross_family": false }, { "answer_id": "FURN-REF-002", "score": 0.6008670330047607, "sibling_score": 0.6008670330047607, "answer_score": null, "sibling_qid": "KOC-2026-03-2007-Q004", "sibling_text": "boiler furnaces inspection ra isolation what all items u check in furnace and repair he need refractory repairing and how it is done", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Boiler refractory patch-up, restoration, brick support and repair procedure", "cross_family": false }, { "answer_id": "FURN-REF-005", "score": 0.593250036239624, "sibling_score": 0.593250036239624, "answer_score": null, "sibling_qid": "KOC-2026-09-2209-Q004", "sibling_text": "boiler furnace inspection", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Boiler furnace inspection — isolation, risk assessment, inspection items and findings", "cross_family": false } ] }, { "qid": "KOL-2019-05-3238-Q003", "text": "Fwg chemical cleaning wrt to engineering terms n definitions", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "KOL-2019-05-3238", "tray": "review", "candidates": [ { "answer_id": "HULL-PAINT-001", "score": 0.6790315508842468, "sibling_score": 0.6790315508842468, "answer_score": null, "sibling_qid": "MUM-2026-05-3247-Q009", "sibling_text": "fwg chemical cleaning if no chemical is available what you can use", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Preparing the hull surface before painting in dry dock — cleanliness standard and methods", "cross_family": false }, { "answer_id": "ECON-EGB-005", "score": 0.6000310182571411, "sibling_score": 0.6000310182571411, "answer_score": 0.48060190975666045, "sibling_qid": "KOC-2025-01-1457-Q010", "sibling_text": "egb cleaning wanted to hear chemical cleaning and chemical used didn t knew", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Cleaning, choking & soot-fire prevention / indication / temperature", "cross_family": true }, { "answer_id": "CHEM-PA-007", "score": 0.5502721071243286, "sibling_score": 0.5502721071243286, "answer_score": null, "sibling_qid": "KOL-2019-04-3234-Q001", "sibling_text": "prewash of chemical tanker for high viscous fluid", "sibling_family": "MARPOL - Annex II (NLS)", "via": "sibling", "answer_title": "Prewash, tank cleaning, washings, high-viscosity residues and facility refusal", "cross_family": true } ] }, { "qid": "KOL-2019-05-3239-Q003", "text": "c) Boiler full lift safety valve , construction and working principle. Why the lift cannot be more than D/4?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2019-05-3239", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.6804047226905823, "sibling_score": 0.6804047226905823, "answer_score": null, "sibling_qid": "MUM-2026-07-3737-Q004", "sibling_text": "boiler type safety valve type lift of safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACRV-005", "score": 0.6590084433555603, "sibling_score": 0.6590084433555603, "answer_score": null, "sibling_qid": "MUM-2026-06-3549-Q005", "sibling_text": "boiler safety valve maximum questions", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-002", "score": 0.6447042226791382, "sibling_score": 0.6447042226791382, "answer_score": null, "sibling_qid": "KOL-2026-02-3922-Q005", "sibling_text": "what is lifting of safety valve tell only within 3 percent of designated set pressure nothing else", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Acceptance limits and durations — the accumulation limit, the maximum test periods, and the action if the limit is exceeded", "cross_family": false } ] }, { "qid": "KOL-2019-05-3240-Q002", "text": "As 2nd engineer what are all aspects of pollution in engine room, regarding annex 1, annex 4, annex 5?", "family": "MARPOL - Annex I (Oil)", "subtopic": "Oily Water / OWS / ORB", "tid": "KOL-2019-05-3240", "tray": "new", "candidates": [ { "answer_id": "OWS-15PPM-002", "score": 0.6332686543464661, "sibling_score": 0.6332686543464661, "answer_score": null, "sibling_qid": "CHE-2025-08-0051-Q006", "sibling_text": "annex 1 engine room bilges discharge some more", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ODC-012", "score": 0.6322878003120422, "sibling_score": 0.6322878003120422, "answer_score": null, "sibling_qid": "MUM-2026-02-0754-Q004", "sibling_text": "annex discharge criteria engine room slop tank", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Slop tank — arrangement, purpose and how a discharge is actually made", "cross_family": false }, { "answer_id": "ODC-002", "score": 0.6205008625984192, "sibling_score": 0.6205008625984192, "answer_score": 0.4603975832462311, "sibling_qid": "KOL-2026-04-1215-Q006", "sibling_text": "what are the provisions under annex 1 for engine room", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Machinery-space (engine room) bilge discharge criteria — outside a special area", "cross_family": false } ] }, { "qid": "KOL-2019-05-3240-Q005", "text": "One more question that i forgot, will add later. Got fn 6.", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOL-2019-05-3240", "tray": "new", "candidates": [ { "answer_id": "VIT-MECH-B-002", "score": 0.6012938022613525, "sibling_score": 0.6012938022613525, "answer_score": null, "sibling_qid": "KOL-2021-08-1617-Q009", "sibling_text": "what is breaking point and how is breaking point adjusted 2 more questions cant remember will post if i remember got fn 6", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How VIT is adjusted and set — timing and fuel-quality (FQS) interactions", "cross_family": true }, { "answer_id": "SPR-STERN-002", "score": 0.5882815718650818, "sibling_score": 0.5882815718650818, "answer_score": null, "sibling_qid": "KOL-2018-02-1354-Q011", "sibling_text": "propeller draw i cudnt understand wat he wanted to know didn t answer got function 6", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Propeller draw & dry-dock blade repair", "cross_family": true }, { "answer_id": "BFS-257-010", "score": 0.5804487466812134, "sibling_score": 0.5804487466812134, "answer_score": null, "sibling_qid": "MUM-2025-05-0277-Q022", "sibling_text": "how to confirm if it s done properly got function 6", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "How to confirm soot blowing has been carried out effectively", "cross_family": true } ] }, { "qid": "KOL-2019-06-0288-Q002", "text": "Management Review n cross.", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOL-2019-06-0288", "tray": "new", "candidates": [ { "answer_id": "ISM-AUD-P02-006", "score": 0.6389521956443787, "sibling_score": 0.6389521956443787, "answer_score": 0.3754451110959053, "sibling_qid": "KOL-2025-09-1071-Q008", "sibling_text": "management review", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Master's review, company / management review and change management", "cross_family": false }, { "answer_id": "ISM-ELEM-006", "score": 0.6389495730400085, "sibling_score": 0.6389495730400085, "answer_score": 0.4067117840051651, "sibling_qid": "MUM-2025-06-0335-Q001", "sibling_text": "management review", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Master’s review & management review", "cross_family": false }, { "answer_id": "ISM-AUD-P02-002", "score": 0.5013265013694763, "sibling_score": 0.5013265013694763, "answer_score": null, "sibling_qid": "MUM-2022-09-0044-Q001", "sibling_text": "ism review", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM Code — what it is, purpose, objectives and structure", "cross_family": false } ] }, { "qid": "KOL-2019-06-0289-Q004", "text": "MLC and its articles", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOL-2019-06-0289", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.5214622020721436, "sibling_score": 0.5214622020721436, "answer_score": 0.3257140636444092, "sibling_qid": "KOC-2026-05-2135-Q011", "sibling_text": "mlc titles explain title 1 explain dmlc part 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "MLC-WRH-B-006", "score": 0.5009443163871765, "sibling_score": 0.5009443163871765, "answer_score": 0.2721383064985275, "sibling_qid": "MUM-2026-07-3680-Q005", "sibling_text": "what is mlc certificate under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false }, { "answer_id": "MLC-WRH-B-010", "score": 0.47620007395744324, "sibling_score": 0.47620007395744324, "answer_score": null, "sibling_qid": "MUM-2025-11-0573-Q004", "sibling_text": "how are wages set under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "SEA, the CBA parties, and how wages are set — action on non-payment", "cross_family": false } ] }, { "qid": "KOL-2019-06-1458-Q004", "text": "draw and explain jacket water cooling system", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Jacket Water Direction", "tid": "KOL-2019-06-1458", "tray": "review", "candidates": [ { "answer_id": "CTRL-002", "score": 0.6624456644058228, "sibling_score": 0.6624456644058228, "answer_score": 0.507411801815033, "sibling_qid": "KOC-2024-01-0987-Q006", "sibling_text": "cascade control system explain jacket water system", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Cascade applied to main-engine jacket cooling-water temperature", "cross_family": true }, { "answer_id": "CTRL-TL-009", "score": 0.6384729743003845, "sibling_score": 0.6384729743003845, "answer_score": 0.5093546122312546, "sibling_qid": "KOL-2025-08-2007-Q004", "sibling_text": "jacket water controller cascade", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Jacket-water temperature control (and when it is a true cascade)", "cross_family": true }, { "answer_id": "CTRL-007", "score": 0.6373870372772217, "sibling_score": 0.6373870372772217, "answer_score": null, "sibling_qid": "KOC-2025-10-1584-Q005", "sibling_text": "explain any automation i explained jacket water control system", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Explain an automatic controller / automation process onboard", "cross_family": true } ] }, { "qid": "KOL-2019-06-3242-Q004", "text": "Cant remember Somehow failed both", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOL-2019-06-3242", "tray": "new", "candidates": [ { "answer_id": "ANG-ENC-005", "score": 0.6486074328422546, "sibling_score": 0.6486074328422546, "answer_score": 0.34470073282718655, "sibling_qid": "CHE-2025-08-0514-Q002", "sibling_text": "if both fail what will happen", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Encoder failure: redundancy, offset, backup and emergency starting", "cross_family": true }, { "answer_id": "VIB-BAL-B-003", "score": 0.6138052940368652, "sibling_score": 0.6138052940368652, "answer_score": null, "sibling_qid": "KOL-2018-08-0204-Q006", "sibling_text": "not remember", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Torsional vibration: what it is, what causes it, how it is controlled", "cross_family": true }, { "answer_id": "IGAT-583-004", "score": 0.5900477170944214, "sibling_score": 0.5900477170944214, "answer_score": null, "sibling_qid": "KOC-2021-07-0013-Q006", "sibling_text": "ig fail what action int", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "As Second Engineer, what actions do you take if the inert gas plant of a crude oil tanker is repeatedly tripping on IG high temperature?", "cross_family": true } ] }, { "qid": "KOL-2019-06-3243-Q001", "text": "A/E all units exhaust temp high and Engine taking only 50% load", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Decarb / Balancing / High Exhaust Temperature", "tid": "KOL-2019-06-3243", "tray": "review", "candidates": [ { "answer_id": "AE-HOT-BLOW-004", "score": 0.7430680394172668, "sibling_score": 0.7430680394172668, "answer_score": 0.5998491883277893, "sibling_qid": "MUM-2025-12-2879-Q006", "sibling_text": "rating of the ae running at low load but exhaust temp are high reason", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Auxiliary engine at low load but exhaust temperatures high — reasons", "cross_family": false }, { "answer_id": "EXH-T-HI-001", "score": 0.7159835696220398, "sibling_score": 0.7159835696220398, "answer_score": 0.60302774310112, "sibling_qid": "KOC-2024-09-1005-Q011", "sibling_text": "exhaust temp high all units", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "All units exhaust temperature high — causes and actions", "cross_family": true }, { "answer_id": "AE-HOT-BLOW-005", "score": 0.7102031707763672, "sibling_score": 0.7102031707763672, "answer_score": null, "sibling_qid": "KOL-2018-03-1361-Q007", "sibling_text": "ae one unit exhaust temp rising all unit rising why how to confirm nozzle ring is chocked there is no tc rpm monitor", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Auxiliary engine units rising — one versus all, and confirming a choked turbocharger nozzle ring", "cross_family": false } ] }, { "qid": "KOL-2019-06-3243-Q002", "text": "Rudder and steering gear Inspection", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2019-06-3243", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.790026843547821, "sibling_score": 0.790026843547821, "answer_score": 0.5187311917543411, "sibling_qid": "KOL-2019-08-3269-Q005", "sibling_text": "rudder inspections", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "DUS-P5-05", "score": 0.5307306945323944, "sibling_score": null, "answer_score": 0.5307306945323944, "sibling_qid": "", "sibling_text": "rudder checks and rudder blade tightness leak test in drydock visual checks coating condition cavitation erosion on the blade leading edge propeller side face sacrificial anodes against the approved cathodic protection plan grounding continuity against the approved acceptance criterion plate and weld cracks pintle clearance measured with feeler the numerical acceptance limit is class specific and ", "sibling_family": "", "via": "answer_title", "answer_title": "Rudder checks and rudder-blade tightness/leak test in drydock", "cross_family": false }, { "answer_id": "STG-FUNFU-002", "score": 0.529871940612793, "sibling_score": null, "answer_score": 0.529871940612793, "sibling_qid": "", "sibling_text": "hunting gear purpose location and what happens if it is missing or fails hunting gear is the rudder position feedback repeat back linkage from the tiller or rudder stock back to the pump control the floating lever or servo in the steering gear compartment its job is to nullify the control input progressively so the pump de strokes at the ordered angle the rudder stops exactly on the order without ", "sibling_family": "", "via": "answer_title", "answer_title": "Hunting gear — purpose, location, and what happens if it is missing or fails", "cross_family": false } ] }, { "qid": "KOL-2019-06-3248-Q004", "text": "Boiler safety valve setting procedure? Value?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2019-06-3248", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-001", "score": 0.8358703255653381, "sibling_score": 0.8358703255653381, "answer_score": null, "sibling_qid": "KOC-2026-05-0003-Q005", "sibling_text": "boiler safety valve setting procedure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.7953189015388489, "sibling_score": 0.7953189015388489, "answer_score": null, "sibling_qid": "MUM-2026-03-2935-Q013", "sibling_text": "boiler safety valve setting in presence of surveyor after survey", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.7908671498298645, "sibling_score": 0.7908671498298645, "answer_score": null, "sibling_qid": "KOC-2026-05-0034-Q010", "sibling_text": "boiler safety valve types and how safety valve is set complete procedures", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOL-2019-07-0290-Q001", "text": "Shipboard health and safety programme", "family": "ISM Code", "subtopic": "SMS / Functional Requirements", "tid": "KOL-2019-07-0290", "tray": "new", "candidates": [ { "answer_id": "FCP-004", "score": 0.6375921368598938, "sibling_score": 0.6375921368598938, "answer_score": null, "sibling_qid": "KOC-2023-10-0237-Q001", "sibling_text": "what are the safety plans displayed onboard ships", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "What safety plans are displayed onboard, and which plan shows the life-saving appliances?", "cross_family": true }, { "answer_id": "ISM-AUD-P02-006", "score": 0.6287235021591187, "sibling_score": 0.6287235021591187, "answer_score": null, "sibling_qid": "KOL-2025-09-1070-Q004", "sibling_text": "managemt review who does it and why is it done or required on ship", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Master's review, company / management review and change management", "cross_family": false }, { "answer_id": "UMS-310-001", "score": 0.6204318404197693, "sibling_score": 0.6204318404197693, "answer_score": null, "sibling_qid": "MUM-2025-12-0662-Q006", "sibling_text": "ums ship solas requirement", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a UMS ship and what does SOLAS require? (Part E, regs 46–53)", "cross_family": false } ] }, { "qid": "KOL-2019-07-0293-Q004", "text": "Transom stern and cruiser stern", "family": "Ship Construction & Stability", "subtopic": "Stern Frame / Transom", "tid": "KOL-2019-07-0293", "tray": "review", "candidates": [ { "answer_id": "DUS-P5-03", "score": 0.7114233374595642, "sibling_score": 0.7114233374595642, "answer_score": 0.46681072711944577, "sibling_qid": "CHE-2026-02-0105-Q005", "sibling_text": "transom stern explain", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Stern frame construction, cross-section and rudder-axis sketch", "cross_family": false }, { "answer_id": "SHELL-PLT-A-001", "score": 0.5306817293167114, "sibling_score": 0.5306817293167114, "answer_score": null, "sibling_qid": "KOC-2025-02-0543-Q006", "sibling_text": "shell expansion plan draw stern side without propeller and rudder int", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "The shell expansion plan, and how you identify a plate", "cross_family": true }, { "answer_id": "STS-P02-003", "score": 0.5260174870491028, "sibling_score": 0.5260174870491028, "answer_score": 0.4465954065322876, "sibling_qid": "CHE-2026-04-0518-Q013", "sibling_text": "decider po how stern tube is attached to the ship", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "STS-P02-03 - Stern tube arrangement, fitting in hull and shaft support", "cross_family": true } ] }, { "qid": "KOL-2019-07-0295-Q001", "text": "Type of ship?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2019-07-0295", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8366292119026184, "sibling_score": 0.8366292119026184, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8018827438354492, "sibling_score": 0.8018827438354492, "answer_score": 0.5473108768463134, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8003316521644592, "sibling_score": 0.8003316521644592, "answer_score": 0.5218650102615356, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "KOL-2019-07-0297-Q002", "text": "AIS its function, under which code it comes.", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "KOL-2019-07-0297", "tray": "new", "candidates": [ { "answer_id": "IMO-CODES-P03-002", "score": 0.586132287979126, "sibling_score": 0.586132287979126, "answer_score": null, "sibling_qid": "MUM-2026-03-0815-Q003", "sibling_text": "which function", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": true }, { "answer_id": "IACS-324-001", "score": 0.5703774690628052, "sibling_score": 0.5703774690628052, "answer_score": 0.34633892625570295, "sibling_qid": "KOC-2023-09-0220-Q003", "sibling_text": "iacs function", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "1. What is IACS and what are its functions?", "cross_family": true }, { "answer_id": "ISPS-SL-002", "score": 0.5635265111923218, "sibling_score": 0.5635265111923218, "answer_score": null, "sibling_qid": "KOL-2022-10-0689-Q046", "sibling_text": "isps code elements in this code describe", "sibling_family": "ISPS", "via": "sibling", "answer_title": "Elements, contents, functional requirements, training and equipment", "cross_family": true } ] }, { "qid": "KOL-2019-07-0300-Q004", "text": "special survey in marpol annex one. Got fn5.", "family": "MARPOL - Annex I (Oil)", "subtopic": "Oil Discharge Criteria", "tid": "KOL-2019-07-0300", "tray": "new", "candidates": [ { "answer_id": "SURV-GEN-004", "score": 0.5889602303504944, "sibling_score": 0.5889602303504944, "answer_score": null, "sibling_qid": "KOL-2021-02-0473-Q002", "sibling_text": "marpol additional surveys", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Additional / non-periodical survey", "cross_family": true }, { "answer_id": "ODC-004", "score": 0.5550222396850586, "sibling_score": 0.5550222396850586, "answer_score": null, "sibling_qid": "KOL-2025-09-1036-Q008", "sibling_text": "marpol annex 1 dicharge regulation for normal and special area what are special areas cross why all ship has alarm and automatic system even if they never ply in special area", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Regulation 14 — oil filtering equipment: 400 GT, 10,000 GT and what each must have", "cross_family": false }, { "answer_id": "ODC-008", "score": 0.5313756465911865, "sibling_score": 0.5313756465911865, "answer_score": null, "sibling_qid": "KOL-2021-10-0565-Q002", "sibling_text": "oil discharge criteria outside special area 5 points", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Cargo-area discharge criteria for an oil tanker — outside a special area", "cross_family": false } ] }, { "qid": "KOL-2019-07-0301-Q004", "text": "Lng tankers regulation of cargo discharge,tell me about igc code regulation regarding it", "family": "Cargo Ops - Gas Carriers", "subtopic": "IGC / Gas Carrier Safety", "tid": "KOL-2019-07-0301", "tray": "review", "candidates": [ { "answer_id": "LPG-LNG-004", "score": 0.7014853358268738, "sibling_score": 0.7014853358268738, "answer_score": null, "sibling_qid": "KOC-2024-05-1840-Q007", "sibling_text": "lng cargo pump type and discharging procedure disconnection procedure after discharge level 2 esd int no questions", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Loading / discharging, tank pressure, pump and disconnection", "cross_family": false }, { "answer_id": "IGC-IGF-001", "score": 0.6768105030059814, "sibling_score": 0.6768105030059814, "answer_score": null, "sibling_qid": "MUM-2026-09-3870-Q004", "sibling_text": "igc code requirement for lng carrier", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "IGC Code vs IGF Code — what they are and the difference", "cross_family": true }, { "answer_id": "IGC-GAS-012", "score": 0.6648477911949158, "sibling_score": 0.6648477911949158, "answer_score": null, "sibling_qid": "MUM-2025-05-0269-Q001", "sibling_text": "lng safety in compressor room motor room safety arrangement near accomodation door in lng tanker boil off line going to the er what safety arrangement present what certificate does a gas carrier carrier that is not carried by tanker fire fighting arrangement on the liquid dome of a cargo tank isps code which level is the highest is cargo operation allowed in that level difference between igc and gc code vikrant rai what is bleve and what arrangement on ship to provide safety against this how do you prepare for surface hardeneing mep and mip", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Compressor-room and motor-room safeties (including the fusible plug)", "cross_family": false } ] }, { "qid": "KOL-2019-07-0302-Q002", "text": "Ism aims and name chapters", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOL-2019-07-0302", "tray": "new", "candidates": [ { "answer_id": "ISM-ELEM-003", "score": 0.6471760869026184, "sibling_score": 0.6471760869026184, "answer_score": 0.4251188576221466, "sibling_qid": "MUM-2026-03-2941-Q004", "sibling_text": "ism full form and chapters", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.5768822431564331, "sibling_score": 0.5768822431564331, "answer_score": null, "sibling_qid": "MUM-2025-09-0457-Q008", "sibling_text": "objectives of ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "ISM-AUD-P02-002", "score": 0.5759178996086121, "sibling_score": 0.5759178996086121, "answer_score": null, "sibling_qid": "KOL-2019-02-3209-Q005", "sibling_text": "ism chapters specifically how many numbers", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM Code — what it is, purpose, objectives and structure", "cross_family": false } ] }, { "qid": "KOL-2019-07-1462-Q004", "text": "Boiler safety vv setting.", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2019-07-1462", "tray": "review", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-003", "score": 0.7593522667884827, "sibling_score": 0.7593522667884827, "answer_score": null, "sibling_qid": "KOL-2026-02-2040-Q006", "sibling_text": "boiler safety v v setting boiler accumulation pr test", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "The accumulation test and the safety valve — required lift, how lift and capacity are verified, and why accumulation must stay inside the limit", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.7321448922157288, "sibling_score": 0.7321448922157288, "answer_score": null, "sibling_qid": "CHE-2026-04-0500-Q005", "sibling_text": "boiler safety valve setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.7154914736747742, "sibling_score": 0.7154914736747742, "answer_score": null, "sibling_qid": "MUM-2026-03-2935-Q013", "sibling_text": "boiler safety valve setting in presence of surveyor after survey", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false } ] }, { "qid": "KOL-2019-07-1463-Q004", "text": "How will u set Safety valve ?What is CSM survey?IS boiler safety valve survey is carried out along with CSM?LOt of cross ques..", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2019-07-1463", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P01-001", "score": 0.773239016532898, "sibling_score": 0.773239016532898, "answer_score": null, "sibling_qid": "MUM-2026-03-2935-Q013", "sibling_text": "boiler safety valve setting in presence of surveyor after survey", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.7148539423942566, "sibling_score": 0.7148539423942566, "answer_score": null, "sibling_qid": "KOL-2026-01-3904-Q003", "sibling_text": "setting of boiler safety valve cross questions in high lift safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.7084404826164246, "sibling_score": 0.7084404826164246, "answer_score": null, "sibling_qid": "KOC-2026-05-0003-Q005", "sibling_text": "boiler safety valve setting procedure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false } ] }, { "qid": "KOL-2019-07-1465-Q002", "text": "Compensating ring in air bottle? Why named so? Fusible plug & relief vv? If blown what all checks you do as second engineer?", "family": "Air Compressor", "subtopic": "MAC / Air Compressor", "tid": "KOL-2019-07-1465", "tray": "new", "candidates": [ { "answer_id": "ACRV-001", "score": 0.6166206002235413, "sibling_score": 0.6166206002235413, "answer_score": null, "sibling_qid": "KOL-2024-07-1948-Q013", "sibling_text": "first stage relief valve leaking", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "First-stage relief valve lifting or leaking — reasons and checks", "cross_family": false }, { "answer_id": "ACSS-002", "score": 0.6050629019737244, "sibling_score": 0.6050629019737244, "answer_score": null, "sibling_qid": "CHE-2026-05-0643-Q012", "sibling_text": "air compressor relief valve testing", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Relief / safety valves: settings, testing, lifting reasons; bursting disc", "cross_family": false }, { "answer_id": "ACRV-002", "score": 0.5998843312263489, "sibling_score": 0.5998843312263489, "answer_score": 0.4753348857164383, "sibling_qid": "KOL-2025-07-4058-Q004", "sibling_text": "occasionally lifting of 2nd stage air compressor relief valve", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Second or final-stage relief valve lifting — reasons and checks", "cross_family": false } ] }, { "qid": "KOL-2019-07-1466-Q002", "text": "Jumping bar where it is fitted and what is its significance.", "family": "", "subtopic": "", "tid": "KOL-2019-07-1466", "tray": "new", "candidates": [ { "answer_id": "RUD-DROP-002", "score": 0.5069178342819214, "sibling_score": 0.5069178342819214, "answer_score": null, "sibling_qid": "KOL-2021-04-3393-Q004", "sibling_text": "4 jumping bar position", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Rudder clearances: which, where and how taken", "cross_family": false }, { "answer_id": "RUN-CLR-003", "score": 0.4735718369483948, "sibling_score": 0.4735718369483948, "answer_score": 0.36396341919898983, "sibling_qid": "KOC-2026-05-2124-Q008", "sibling_text": "jumping clearance location", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Jumping clearance — how it is measured and where it is checked", "cross_family": false }, { "answer_id": "DRG-583-A-006", "score": 0.4255666732788086, "sibling_score": 0.4255666732788086, "answer_score": null, "sibling_qid": "MUM-2026-09-3894-Q010", "sibling_text": "jumping bolt for fflb free fall lifeboat i explained skid lashing", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Free-fall lifeboat: release mechanism and how the boat is held on the skid", "cross_family": false } ] }, { "qid": "KOL-2019-07-1468-Q004", "text": "Boiler control for swell shrinkage.", "family": "Boilers - Operations & Firing", "subtopic": "Boiler Water Circulation", "tid": "KOL-2019-07-1468", "tray": "review", "candidates": [ { "answer_id": "DP-TX-006", "score": 0.7398316860198975, "sibling_score": 0.7398316860198975, "answer_score": 0.5575322777032852, "sibling_qid": "KOL-2025-08-2012-Q004", "sibling_text": "swell and shrink in boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler swell and shrink in relation to DP level measurement and control", "cross_family": false }, { "answer_id": "LWL-004", "score": 0.6990726590156555, "sibling_score": 0.6990726590156555, "answer_score": 0.5587364077568054, "sibling_qid": "KOL-2021-08-3446-Q003", "sibling_text": "what is swell and shrinkage how swell and shrinkage is nullified in boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "What are swell and shrinkage, and how are they nullified in the boiler?", "cross_family": false }, { "answer_id": "LWL-002", "score": 0.6540449261665344, "sibling_score": 0.6540449261665344, "answer_score": null, "sibling_qid": "CHE-2026-05-0647-Q003", "sibling_text": "element boiler water control", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "What is the difference between one-, two- and three-element boiler water level control, and what are the water level controllers?", "cross_family": false } ] }, { "qid": "KOL-2019-07-1470-Q001", "text": "Air compressor motor running in reverse direction. What will happen", "family": "Air Compressor", "subtopic": "Reciprocating Compressor", "tid": "KOL-2019-07-1470", "tray": "new", "candidates": [ { "answer_id": "ICAC-299-008", "score": 0.6182047724723816, "sibling_score": 0.6182047724723816, "answer_score": null, "sibling_qid": "KOL-2017-03-1848-Q009", "sibling_text": "air compressor intercooler bursting disc have give way how to run compressor", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Bursting disc gives way: running the compressor safely", "cross_family": false }, { "answer_id": "UNL-330-004", "score": 0.6158221364021301, "sibling_score": 0.6158221364021301, "answer_score": null, "sibling_qid": "KOC-2025-08-1937-Q013", "sibling_text": "compressor unloader faulty during maneuvering actions taken", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "The main air compressor unloader is faulty during manoeuvring — what action do you take?", "cross_family": false }, { "answer_id": "RPT-A-004", "score": 0.6132535934448242, "sibling_score": 0.6132535934448242, "answer_score": null, "sibling_qid": "KOL-2020-10-2397-Q002", "sibling_text": "reverse power trip if motering occurs then what will happen", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Motoring action, what it does to the prime mover if the trip fails, and restarting after a reverse-power trip", "cross_family": true } ] }, { "qid": "KOL-2019-07-1470-Q004", "text": "Swell and surge in boiler. What arrangements in control system to prevent it", "family": "Boilers - Operations & Firing", "subtopic": "Boiler Water Circulation", "tid": "KOL-2019-07-1470", "tray": "review", "candidates": [ { "answer_id": "CTRL-003", "score": 0.6532502770423889, "sibling_score": 0.6532502770423889, "answer_score": null, "sibling_qid": "KOL-2026-07-4281-Q002", "sibling_text": "spilt control in boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Split-range control — working and use", "cross_family": false }, { "answer_id": "ACC-603-001", "score": 0.6406393647193909, "sibling_score": 0.6406393647193909, "answer_score": null, "sibling_qid": "KOL-2016-10-1242-Q004", "sibling_text": "boiler auto control system emergency system in it", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "The automatic combustion control system — how it works, the start sequence, and the emergency arrangement", "cross_family": false }, { "answer_id": "DP-TX-006", "score": 0.6397265791893005, "sibling_score": 0.6397265791893005, "answer_score": 0.5064310491085052, "sibling_qid": "KOL-2025-08-2012-Q004", "sibling_text": "swell and shrink in boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler swell and shrink in relation to DP level measurement and control", "cross_family": false } ] }, { "qid": "KOL-2019-07-2301-Q004", "text": "what is the maximum wattage of bulb present onboard the ship. Where are bulb used", "family": "Electrical - Distribution & MSB", "subtopic": "Lighting / Lamps", "tid": "KOL-2019-07-2301", "tray": "new", "candidates": [ { "answer_id": "VOLT-SYS-001", "score": 0.5708008408546448, "sibling_score": 0.5708008408546448, "answer_score": null, "sibling_qid": "KOC-2026-03-0887-Q002", "sibling_text": "ship electrical specs", "sibling_family": "Electrical - Distribution & MSB", "via": "sibling", "answer_title": "Shipboard voltages and frequency in use", "cross_family": false }, { "answer_id": "VOLT-SYS-008", "score": 0.5565628409385681, "sibling_score": 0.5565628409385681, "answer_score": null, "sibling_qid": "CHE-2025-08-0282-Q007", "sibling_text": "lightings supply voltage why not 24v", "sibling_family": "Electrical - Distribution & MSB", "via": "sibling", "answer_title": "Why standard shipboard voltages: 440, 230/220, 110 and 24", "cross_family": false }, { "answer_id": "HV-SYS-P02-001", "score": 0.544004499912262, "sibling_score": 0.544004499912262, "answer_score": null, "sibling_qid": "KOL-2019-04-2283-Q001", "sibling_text": "high voltage use onboard ship", "sibling_family": "", "via": "sibling", "answer_title": "Why high voltage is used onboard ships", "cross_family": false } ] }, { "qid": "KOL-2019-07-2305-Q002", "text": "Zener barrier..", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOL-2019-07-2305", "tray": "review", "candidates": [ { "answer_id": "EPC-P02-03", "score": 0.6890805959701538, "sibling_score": 0.6890805959701538, "answer_score": 0.4367011934518814, "sibling_qid": "CHE-2026-02-0333-Q002", "sibling_text": "zener barrier", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Where is a zener diode used on board and why — voltage regulator, AVR, clipper — and explain one application in detail.", "cross_family": false }, { "answer_id": "EPC-P02-01", "score": 0.688621997833252, "sibling_score": 0.688621997833252, "answer_score": 0.47165409922599794, "sibling_qid": "MUM-2026-03-2019-Q005", "sibling_text": "zener barrier", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a zener diode? Draw its symbol, explain its working principle, and draw and explain its characteristic curve including the zener (breakdown) voltage.", "cross_family": false }, { "answer_id": "HAZ-EX-B-001", "score": 0.6212887763977051, "sibling_score": 0.6212887763977051, "answer_score": null, "sibling_qid": "CHE-2026-03-0358-Q005", "sibling_text": "zener barrier working in intrinsically safe", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Intrinsically safe (Ex i) equipment — what it is, how it works, where it is used, how you identify it", "cross_family": false } ] }, { "qid": "KOL-2019-07-2306-Q002", "text": "how many navigation lights on board and minimum no. Of nav lights as per requirement and the safety features . He wanted to listen to alarm indication in case of failure of lights .", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Lifeboat / Davit / LSA", "tid": "KOL-2019-07-2306", "tray": "review", "candidates": [ { "answer_id": "LT-SRC-009", "score": 0.7451338768005371, "sibling_score": 0.7451338768005371, "answer_score": 0.5334929943084716, "sibling_qid": "KOC-2023-04-1253-Q008", "sibling_text": "navigational lights onboard how many what is special about navigational lights alarm upon failure", "sibling_family": "", "via": "sibling", "answer_title": "Draw and explain the nav-light circuit, fault indication and fuse-failure alarm", "cross_family": false }, { "answer_id": "LT-SRC-004", "score": 0.6231104135513306, "sibling_score": 0.6231104135513306, "answer_score": 0.5395882725715637, "sibling_qid": "KOC-2023-10-1287-Q004", "sibling_text": "4 navigation light how many location", "sibling_family": "", "via": "sibling", "answer_title": "What navigation lights are carried, where, and how many?", "cross_family": false }, { "answer_id": "LT-SRC-010", "score": 0.6207500100135803, "sibling_score": 0.6207500100135803, "answer_score": 0.5773178160190582, "sibling_qid": "KOL-2022-09-2607-Q002", "sibling_text": "regulations about navigation lights and how many lights what are the special arrangements given", "sibling_family": "", "via": "sibling", "answer_title": "What are the important safeties and special features of navigation lights?", "cross_family": false } ] }, { "qid": "KOL-2019-07-2306-Q005", "text": "As 2nd engineer what will be your responsibility and action for the ship staff in usage of welding transformer in a controlled and profound manner.", "family": "Risk & Safety Management", "subtopic": "Permit to Work / Enclosed Space", "tid": "KOL-2019-07-2306", "tray": "review", "candidates": [ { "answer_id": "WELD-PATM-009", "score": 0.6575453877449036, "sibling_score": 0.6575453877449036, "answer_score": 0.515105527639389, "sibling_qid": "CHE-2025-12-0316-Q002", "sibling_text": "welding transformer safeties", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding machine / transformer – specification and safety", "cross_family": true }, { "answer_id": "WBS-C-002", "score": 0.6446458101272583, "sibling_score": 0.6446458101272583, "answer_score": 0.5160224437713623, "sibling_qid": "CHE-2026-02-0332-Q014S4", "sibling_text": "welding transformer working", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "The arc welding set — transformer construction, output, current control and ordering parameters", "cross_family": true }, { "answer_id": "XFMR-THY-E-005", "score": 0.6174623370170593, "sibling_score": 0.6174623370170593, "answer_score": 0.5160518288612366, "sibling_qid": "MUM-2026-01-1910-Q003", "sibling_text": "welding transformer in detail", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "The welding transformer and current control", "cross_family": true } ] }, { "qid": "KOL-2019-07-2309-Q004", "text": "Instrinctly safe circuit description and y and where fitted and specification", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOL-2019-07-2309", "tray": "new", "candidates": [ { "answer_id": "HAZ-EX-B-001", "score": 0.5864650011062622, "sibling_score": 0.5864650011062622, "answer_score": 0.4484152555465698, "sibling_qid": "MUM-2026-04-2083-Q001", "sibling_text": "intrinsic safe circuit", "sibling_family": "", "via": "sibling", "answer_title": "Intrinsically safe (Ex i) equipment — what it is, how it works, where it is used, how you identify it", "cross_family": false }, { "answer_id": "EEXI-001", "score": 0.542201578617096, "sibling_score": 0.542201578617096, "answer_score": null, "sibling_qid": "KOL-2022-09-4012-Q007", "sibling_text": "eexi intrinsic safe circuit cross qsns", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is EEXI? Explain it in full — formula, unit, application, and what an existing ship is", "cross_family": false }, { "answer_id": "FUSE-HRC-001", "score": 0.40422063767910005, "sibling_score": null, "answer_score": 0.40422063767910005, "sibling_qid": "", "sibling_text": "what a fuse is where and why it is fitted fuse the weakest link in series melts on sustained overcurrent overload or short circuit to open the circuit protects the cable wiring and downstream gear property and fire protection not primarily the person", "sibling_family": "", "via": "answer_title", "answer_title": "What a fuse is, where and why it is fitted", "cross_family": false } ] }, { "qid": "KOL-2019-07-2310-Q001", "text": "Emergency power requirement.", "family": "Electrical - Generator & Alternator", "subtopic": "Emergency DG", "tid": "KOL-2019-07-2310", "tray": "review", "candidates": [ { "answer_id": "EMG-DG-P02-FINAL-2-001", "score": 0.7728124856948853, "sibling_score": 0.7728124856948853, "answer_score": null, "sibling_qid": "MUM-2026-05-3347-Q003", "sibling_text": "emergency power", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Emergency generator loads and duration of emergency supply", "cross_family": false }, { "answer_id": "EDG-P01-001", "score": 0.7714032530784607, "sibling_score": 0.7714032530784607, "answer_score": 0.5327145934104919, "sibling_qid": "KOL-2025-04-2775-Q004", "sibling_text": "emergency generator requirement", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Emergency source of power — the SOLAS requirements", "cross_family": false }, { "answer_id": "EMG-DG-P02-FINAL-2-002", "score": 0.5298174768686295, "sibling_score": null, "answer_score": 0.5298174768686295, "sibling_qid": "", "sibling_text": "transitional source of emergency power and its duration transitional source an accumulator battery an instantaneous no break supply that covers a generator s start gap when it is required passenger ship emergency generator arrangements reg 42 require it cargo ships reg 43 require it unless the emergency generator automatically starts and supplies the specified transitional services within 45 s if ", "sibling_family": "", "via": "answer_title", "answer_title": "Transitional source of emergency power and its duration", "cross_family": false } ] }, { "qid": "KOL-2019-07-2310-Q003", "text": "DOL control circuit draw and explain.", "family": "Electrical - Motors & Starters", "subtopic": "DOL Starter", "tid": "KOL-2019-07-2310", "tray": "new", "candidates": [ { "answer_id": "STR-DEC-A-001", "score": 0.5731894373893738, "sibling_score": 0.5731894373893738, "answer_score": null, "sibling_qid": "KOC-2024-11-1430-Q001", "sibling_text": "dol starter diagram current value", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "CTRL-TL-002", "score": 0.5620954632759094, "sibling_score": 0.5620954632759094, "answer_score": null, "sibling_qid": "MUM-2026-05-3336-Q005", "sibling_text": "control circuit", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Function of a controller, and types used on board", "cross_family": false }, { "answer_id": "SDST-A-001", "score": 0.5605911612510681, "sibling_score": 0.5605911612510681, "answer_score": null, "sibling_qid": "KOC-2023-07-1266-Q001", "sibling_text": "draw star delta starter with control circuit", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false } ] }, { "qid": "KOL-2019-07-2313-Q001", "text": "steering motor safety's and cross", "family": "Electrical - Motors & Starters", "subtopic": "Single Phasing", "tid": "KOL-2019-07-2313", "tray": "review", "candidates": [ { "answer_id": "SGM-ELEC-001", "score": 0.7093650698661804, "sibling_score": 0.7093650698661804, "answer_score": 0.47490368485450746, "sibling_qid": "MUM-2022-08-1344-Q003", "sibling_text": "steering motor safeties", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What are the safeties, alarms and trips on the steering gear motor as per SOLAS — and how do you activate the safematic?", "cross_family": false }, { "answer_id": "SGM-ELEC-002", "score": 0.7031381726264954, "sibling_score": 0.7031381726264954, "answer_score": null, "sibling_qid": "MUM-2026-05-3190-Q008", "sibling_text": "steering gear motor safeties", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What type of motor is the steering gear motor, how does it differ from other engine-room motors, and how do you order one?", "cross_family": false }, { "answer_id": "ELEC-SAFE-006", "score": 0.5240284621715545, "sibling_score": null, "answer_score": 0.5240284621715545, "sibling_qid": "", "sibling_text": "steering gear electrical safety and motor insulation essential service duplicated supplies often one from the emergency switchboard motors have short circuit protection and an overload alarm no normal overload trip that would stop steering", "sibling_family": "", "via": "answer_title", "answer_title": "Steering gear electrical safety and motor insulation", "cross_family": false } ] }, { "qid": "KOL-2019-07-3250-Q001", "text": "Oil in evaporator, how to remove it.", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "KOL-2019-07-3250", "tray": "review", "candidates": [ { "answer_id": "REEF-COMP-008", "score": 0.694098949432373, "sibling_score": 0.694098949432373, "answer_score": null, "sibling_qid": "KOL-2020-02-3327-Q004", "sibling_text": "in refer compressors evaporator oil found how to remove onboard", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Valves, clearances, oil carry-over, refrigerant-in-oil, frosting, tandem valves, cooling — fault checks", "cross_family": true }, { "answer_id": "SBD-001", "score": 0.6157838702201843, "sibling_score": 0.6157838702201843, "answer_score": null, "sibling_qid": "MUM-2026-04-2104-Q008S6", "sibling_text": "oil in boiler how to remove procedure", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "You find oil in the boiler gauge glass — causes, how you identify the source, and your actions as 2/E (including if manoeuvring). What is carryover?", "cross_family": true }, { "answer_id": "REEF-COMP-004", "score": 0.5788416862487793, "sibling_score": 0.5788416862487793, "answer_score": 0.4615299224853516, "sibling_qid": "KOL-2017-06-3058-Q002", "sibling_text": "in a refrigeration unit how to replinish the oil", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Charging, replenishing and draining compressor lube oil — including with no charging pump", "cross_family": true } ] }, { "qid": "KOL-2019-07-3251-Q006", "text": "dont rem Done with class 2...keep sharing...BOL for all", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOL-2019-07-3251", "tray": "new", "candidates": [ { "answer_id": "REF-CYC-007", "score": 0.4771615266799927, "sibling_score": 0.4771615266799927, "answer_score": null, "sibling_qid": "KOL-2020-02-1529-Q005", "sibling_text": "cop in reffer cycle and related questions done with class 2", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "7. COP and improving refrigeration efficiency", "cross_family": true }, { "answer_id": "DDI-003", "score": 0.4463176131248474, "sibling_score": 0.4463176131248474, "answer_score": null, "sibling_qid": "KOL-2017-01-3021-Q004", "sibling_text": "while flooding in d d what all checks finally done with class 2 sorry for delay thankx everyone n best of luck", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Before flooding the dock, what checks do you carry out — in the engine room, and on the propeller, rudder and stern tube?", "cross_family": true }, { "answer_id": "A60-BCLASS-002", "score": 0.445917010307312, "sibling_score": 0.445917010307312, "answer_score": null, "sibling_qid": "KOC-2025-08-0646-Q007", "sibling_text": "bulkead subdivision aclass and b class", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "A, B and C class divisions — and where they are used", "cross_family": true } ] }, { "qid": "KOL-2019-07-3253-Q004", "text": "AE lube oil sump what will happen is level is kept high", "family": "Auxiliary Engines", "subtopic": "LO Loss / High Consumption", "tid": "KOL-2019-07-3253", "tray": "new", "candidates": [ { "answer_id": "LO-TEST-P02-003", "score": 0.5389277935028076, "sibling_score": 0.5389277935028076, "answer_score": 0.44426344633102416, "sibling_qid": "MUM-2026-05-3212-Q006", "sibling_text": "lub oil sump rising how will u inspect", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Abnormal LO condition: sump rise, colour, high temperature/pressure, lacquer, deterioration", "cross_family": true }, { "answer_id": "AE-LOLOSS-003", "score": 0.5385911464691162, "sibling_score": 0.5385911464691162, "answer_score": 0.4159255802631378, "sibling_qid": "KOL-2025-11-2022-Q003", "sibling_text": "4 stroke engine lubricating oil sump level starts decreasing what are the reasons", "sibling_family": "Auxiliary Engines", "via": "sibling", "answer_title": "Auxiliary engine sump/crankcase level decreases during operation — reasons", "cross_family": false }, { "answer_id": "LO-SUMP-002", "score": 0.5370760560035706, "sibling_score": 0.5370760560035706, "answer_score": 0.4237781882286072, "sibling_qid": "CHE-2026-08-0670-Q007", "sibling_text": "when ur coming to engine room finding sump level full reasons", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Main-engine LO sump level low / dropping — reasons and action", "cross_family": true } ] }, { "qid": "KOL-2019-07-3258-Q002", "text": "web dn crank shaft slippage..how much max slippage allowed..nd procedure for put into normal condition", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft Web / Journal / Shrink Fit", "tid": "KOL-2019-07-3258", "tray": "new", "candidates": [ { "answer_id": "CRANK-217-004", "score": 0.6407361626625061, "sibling_score": 0.6407361626625061, "answer_score": 0.5559856086969376, "sibling_qid": "MUM-2026-02-2570-Q003", "sibling_text": "semi built crank shaft slippage", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankshaft slippage, tell-tale marks and action if found", "cross_family": false }, { "answer_id": "CRK-DEFL-001", "score": 0.6173805594444275, "sibling_score": 0.6173805594444275, "answer_score": null, "sibling_qid": "CHE-2026-05-0611-Q011", "sibling_text": "crankshaft slip", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Purpose, timing and scope of crankshaft deflection", "cross_family": false }, { "answer_id": "CRPIN-CHK-P01-002", "score": 0.6077654957771301, "sibling_score": 0.6077654957771301, "answer_score": null, "sibling_qid": "KOL-2017-01-1270-Q010", "sibling_text": "what you will do if your crankpin is oval beyond limit", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankpin ovality — causes, effects, limit and immediate action", "cross_family": false } ] }, { "qid": "KOL-2019-07-3258-Q005", "text": "boiler safety v/v setting nd survey", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2019-07-3258", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P01-001", "score": 0.7962209582328796, "sibling_score": 0.7962209582328796, "answer_score": null, "sibling_qid": "MUM-2026-03-2935-Q013", "sibling_text": "boiler safety valve setting in presence of surveyor after survey", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-003", "score": 0.7688401937484741, "sibling_score": 0.7688401937484741, "answer_score": null, "sibling_qid": "KOL-2026-02-2040-Q006", "sibling_text": "boiler safety v v setting boiler accumulation pr test", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "The accumulation test and the safety valve — required lift, how lift and capacity are verified, and why accumulation must stay inside the limit", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.7035194039344788, "sibling_score": 0.7035194039344788, "answer_score": null, "sibling_qid": "CHE-2026-04-0500-Q005", "sibling_text": "boiler safety valve setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false } ] }, { "qid": "KOL-2019-07-3262-Q004", "text": "Boiler safety valve pressure setting.", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2019-07-3262", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-001", "score": 0.8844314217567444, "sibling_score": 0.8844314217567444, "answer_score": null, "sibling_qid": "CHE-2026-09-3931-Q006", "sibling_text": "boiler safety valve pressure setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.8181565403938293, "sibling_score": 0.8181565403938293, "answer_score": null, "sibling_qid": "CHE-2026-09-3919-Q009", "sibling_text": "boiler safety valve setting in front of surveyor first and second safety valve pressure difference", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.8162523508071899, "sibling_score": 0.8162523508071899, "answer_score": null, "sibling_qid": "CHE-2026-05-0583-Q002", "sibling_text": "boiler safety valve lifting pressure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOL-2019-07-3263-Q001", "text": "5 yrs old A/E all unit ext temp going high. Reasons", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Decarb / Balancing / High Exhaust Temperature", "tid": "KOL-2019-07-3263", "tray": "review", "candidates": [ { "answer_id": "AE-HOT-BLOW-006", "score": 0.6519165635108948, "sibling_score": 0.6519165635108948, "answer_score": 0.42792285382747647, "sibling_qid": "KOL-2024-05-3688-Q009", "sibling_text": "ae all unit high temperature reason", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Auxiliary engine all units exhaust temperature high — reasons", "cross_family": false }, { "answer_id": "EGTP-P02-007", "score": 0.6464827656745911, "sibling_score": 0.6464827656745911, "answer_score": null, "sibling_qid": "MUM-2026-07-3794-Q002", "sibling_text": "one unit temp high reasons", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "High Exhaust Temperature — One Unit vs All Units", "cross_family": false }, { "answer_id": "EXH-T-HI-001", "score": 0.5563873052597046, "sibling_score": 0.5563873052597046, "answer_score": 0.4082409232854843, "sibling_qid": "KOL-2017-01-1841-Q003", "sibling_text": "exhaust temperatures of all units rising suddenly reasons", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "All units exhaust temperature high — causes and actions", "cross_family": true } ] }, { "qid": "KOL-2019-07-3263-Q003", "text": "How Iccp performance can b increased", "family": "Electrical - ICCP & Cathodic Protection", "subtopic": "ICCP", "tid": "KOL-2019-07-3263", "tray": "new", "candidates": [ { "answer_id": "ICCP-119-P01-001", "score": 0.5501396059989929, "sibling_score": 0.5501396059989929, "answer_score": 0.3263801172375679, "sibling_qid": "MUM-2025-09-1642-Q004", "sibling_text": "function of iccp", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP — purpose, principle and basic working", "cross_family": false }, { "answer_id": "ICCP-P02-003", "score": 0.5262212157249451, "sibling_score": 0.5262212157249451, "answer_score": null, "sibling_qid": "KOC-2025-03-1514-Q004", "sibling_text": "iccp operation", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP operation — port / berth practice, seawater temperature, starting & adjustment", "cross_family": false }, { "answer_id": "CII-107-P04-001", "score": 0.335758925974369, "sibling_score": null, "answer_score": 0.335758925974369, "sibling_qid": "", "sibling_text": "improving the cii rating and cutting co2 what the 2 e actually does cii is the annual operational metric attained co2 per capacity mile improving it means lowering emitted co2 or improving the transport work done for that fuel speed is the dominant lever propulsion power varies roughly with the cube of ship speed so modest slow steaming gives large fuel and co2 savings", "sibling_family": "", "via": "answer_title", "answer_title": "Improving the CII rating and cutting CO2 — what the 2/E actually does", "cross_family": false } ] }, { "qid": "KOL-2019-07-3265-Q004", "text": "Bilge pump suction pr gauge. How to order?", "family": "Workshop & Welding", "subtopic": "Workshop Tools / Grinder Safety", "tid": "KOL-2019-07-3265", "tray": "new", "candidates": [ { "answer_id": "PCD-P04-01", "score": 0.6327784657478333, "sibling_score": 0.6327784657478333, "answer_score": 0.4810035228729248, "sibling_qid": "MUM-2025-12-0992-Q009", "sibling_text": "bilge pump type no of suction valve", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "01. Bilge pump — type, why not centrifugal, and the suction valve chest", "cross_family": true }, { "answer_id": "PPS-622-004", "score": 0.6322920322418213, "sibling_score": 0.6322920322418213, "answer_score": 0.5222394675016403, "sibling_qid": "KOL-2017-01-3022-Q001", "sibling_text": "bilge pump showing suction pr 0 is it right if not why what its shows how u will test bilge pump suction line", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "The bilge or ballast pump is not taking suction — reasons, how to identify the problem, how to rectify it. What does the suction gauge read, and what is suction head?", "cross_family": true }, { "answer_id": "PIPE-MAT-001", "score": 0.6183907389640808, "sibling_score": 0.6183907389640808, "answer_score": null, "sibling_qid": "CHE-2025-09-0441-Q007", "sibling_text": "how to order pipe for sea water system", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Ordering / specifying a replacement or sea-water pipe", "cross_family": false } ] }, { "qid": "KOL-2019-07-3967-Q003", "text": "Bulbous bow use and , construction, told me to draw.", "family": "", "subtopic": "Bulbous Bow", "tid": "KOL-2019-07-3967", "tray": "new", "candidates": [ { "answer_id": "PPS-230-006", "score": 0.4872495234012604, "sibling_score": 0.4872495234012604, "answer_score": 0.34526677578687665, "sibling_qid": "MUM-2026-02-0782-Q011", "sibling_text": "bulbous bow how it is connected to ship shape of bow", "sibling_family": "", "via": "sibling", "answer_title": "Fore-end / fore-peak structure: draw and describe", "cross_family": false }, { "answer_id": "ANCH-CHN-A-004", "score": 0.45834898948669434, "sibling_score": 0.45834898948669434, "answer_score": null, "sibling_qid": "KOC-2023-11-0249-Q004", "sibling_text": "draw anchor bitter end diagram", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Cable arrangement: anchor to bitter end, and the bitter-end release", "cross_family": false }, { "answer_id": "FWFB-P02-005", "score": 0.4567030072212219, "sibling_score": 0.4567030072212219, "answer_score": 0.3955095291137695, "sibling_qid": "KOL-2016-05-0002-Q002", "sibling_text": "bulb angle what are the places draw", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Other members: breast hook, bulb angle, cross tie, margin / coffin / shoe plates", "cross_family": false } ] }, { "qid": "KOL-2019-08-0305-Q002", "text": "Hawse pipe construction regulation", "family": "Auxiliary Equipment", "subtopic": "Hawse Pipe", "tid": "KOL-2019-08-0305", "tray": "new", "candidates": [ { "answer_id": "ANCH-CHN-A-005", "score": 0.6102597713470459, "sibling_score": 0.6102597713470459, "answer_score": null, "sibling_qid": "KOC-2025-11-0733-Q011", "sibling_text": "dimension regulation of hause pipe", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Hawse pipe, spurling pipe & chain clearance", "cross_family": false }, { "answer_id": "ANCHR-B-005", "score": 0.5577155947685242, "sibling_score": 0.5577155947685242, "answer_score": null, "sibling_qid": "KOC-2025-11-0731-Q008", "sibling_text": "relation between anchor chain and haws pipe clearance value between both", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Gypsy (cable lifter), hawse pipe & windlass brake checks", "cross_family": false }, { "answer_id": "ANCH-CHN-A-006", "score": 0.5393911600112915, "sibling_score": 0.5393911600112915, "answer_score": null, "sibling_qid": "KOC-2025-11-0735-Q010", "sibling_text": "relation bw chain and haws 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"family": "Risk & Safety Management", "subtopic": "Enclosed Space Entry", "tid": "KOL-2019-08-0310", "tray": "new", "candidates": [ { "answer_id": "CAS-ESTOP-001", "score": 0.5685294270515442, "sibling_score": 0.5685294270515442, "answer_score": 0.421748311817646, "sibling_qid": "KOC-2026-09-2189-Q004", "sibling_text": "person found unconscious in engine room what is your action", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Engine-room flooding / rapidly rising bilges — immediate action as 2/E", "cross_family": true }, { "answer_id": "CAS-ESTOP-005", "score": 0.5654294490814209, "sibling_score": 0.5654294490814209, "answer_score": 0.43079696893692015, "sibling_qid": "KOC-2024-09-0413-Q009", "sibling_text": "firefighting in engine room", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "After an engine-room fire or explosion — action as 2/E", "cross_family": true }, { "answer_id": "CO2-SYS-001", "score": 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"score": 0.4632555365562439, "sibling_score": null, "answer_score": 0.4632555365562439, "sibling_qid": "", "sibling_text": "checks clearances trials and steering room duties routine 2 e checks reservoir oil levels leaks motor pump heat noise vibration rudder follows helm both ways without hunting rai agrees with the actual rudder alarms healthy confined water critical transit run both power units redundancy test before entry no maintenance standby manning comms with the bridge confirmed", "sibling_family": "", "via": "answer_title", "answer_title": "Checks, clearances, trials and steering-room duties", "cross_family": false }, { "answer_id": "STEER-055-A-003", "score": 0.4628728717565536, "sibling_score": null, "answer_score": 0.4628728717565536, "sibling_qid": "", "sibling_text": "hunting gear floating lever and buffer spring hunting gear follow up feedback nulls the pump stroke when the rudder reaches the order preventing over run and continuous hunting floating lever three connections order input rudder feedback pump control both ends move hence floating and the pump control is taken from a point between them", "sibling_family": "", "via": "answer_title", "answer_title": "Hunting gear, floating lever and buffer spring", "cross_family": false } ] }, { "qid": "KOL-2019-08-0311-Q001", "text": "Ig alarms and trips", "family": "Tanker - Inert Gas System", "subtopic": "IG Alarms / Trips", "tid": "KOL-2019-08-0311", "tray": "review", "candidates": [ { "answer_id": "IGAT-583-001", "score": 0.7804717421531677, "sibling_score": 0.7804717421531677, "answer_score": 0.45261256098747255, "sibling_qid": "MUM-2026-04-0929-Q002", "sibling_text": "ig alarms and trips", "sibling_family": "Tanker - Inert Gas System", "via": "sibling", "answer_title": "State all the alarms, trips and safety cut-outs provided on a tanker inert gas (IG) system.", "cross_family": false }, { "answer_id": "MR-DS-PV-B-003", "score": 0.458817982673645, "sibling_score": null, "answer_score": 0.458817982673645, "sibling_qid": "", "sibling_text": "3 alarms trips valves and abnormal conditions of the deck seal key seal alarm low water level audible and visual fss requirement any low low trip interlock of gas delivery is maker ship sms logic and should be quoted from the approved ig manual a low seal a lost first barrier pressure oxygen instrumentation when ig is being supplied continuously indicate and permanently record the pressure of the ", "sibling_family": "", "via": "answer_title", "answer_title": "3. 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Gas Carriers", "subtopic": "Cargo Tank Construction", "tid": "KOL-2019-08-0315", "tray": "review", "candidates": [ { "answer_id": "GC-TANK-005", "score": 0.7131039500236511, "sibling_score": 0.7131039500236511, "answer_score": 0.5220999389886856, "sibling_qid": "KOC-2026-08-2155-Q012", "sibling_text": "lng tank material", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "LNG Moss-type cargo tank: construction and advantages", "cross_family": false }, { "answer_id": "GC-TANK-004", "score": 0.7086272835731506, "sibling_score": 0.7086272835731506, "answer_score": 0.5454705089330673, "sibling_qid": "KOC-2025-11-1976-Q004", "sibling_text": "lpg tank construction explanation only", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Gas-carrier cargo tank construction: materials, insulation, fixing and tank safeties", "cross_family": false }, { "answer_id": "GC-TANK-001", "score": 0.6629688739776611, "sibling_score": 0.6629688739776611, "answer_score": 0.49342318177223204, "sibling_qid": "MUM-2025-12-0649-Q004", "sibling_text": "lpg construction types", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Main cargo containment and independent tank types on LPG and LNG carriers", "cross_family": false } ] }, { "qid": "KOL-2019-08-0320-Q004", "text": "Radius of gyration", "family": "", "subtopic": "Static / Dynamic Stability", "tid": "KOL-2019-08-0320", "tray": "review", "candidates": [ { "answer_id": "BK-001", "score": 0.7234664559364319, "sibling_score": 0.7234664559364319, "answer_score": null, "sibling_qid": "KOC-2026-03-0878-Q015", "sibling_text": "raduis of gyration", "sibling_family": "", "via": "sibling", "answer_title": "What is a bilge keel and what is its purpose?", "cross_family": false }, { "answer_id": "BK-004", "score": 0.680909276008606, "sibling_score": 0.680909276008606, "answer_score": null, "sibling_qid": "KOC-2025-07-0633-Q019", "sibling_text": "how its connected radius of gyration", "sibling_family": "", "via": "sibling", "answer_title": "How is a bilge keel attached to the hull, and how is hull cracking or rupture controlled?", "cross_family": false }, { "answer_id": "BK-002", "score": 0.6116406917572021, "sibling_score": 0.6116406917572021, "answer_score": null, "sibling_qid": "KOC-2025-12-0760-Q003", "sibling_text": "radius of gyration time period of roll", "sibling_family": "", "via": "sibling", "answer_title": "How does a bilge keel reduce rolling, and how does it relate to roll period and radius of gyration?", "cross_family": false } ] }, { "qid": "KOL-2019-08-0322-Q006", "text": "Fog horn and what makes it different to use ?", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "KOL-2019-08-0322", "tray": "new", "candidates": [ { "answer_id": "HKC-IHM-A-001", "score": 0.48263099789619446, "sibling_score": 0.48263099789619446, "answer_score": null, "sibling_qid": "KOC-2024-12-0485-Q013", "sibling_text": "honking convention", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Hong Kong Convention — what it is and what it requires", "cross_family": true }, { "answer_id": "FIRE-P01-03", "score": 0.4267464280128479, "sibling_score": 0.4267464280128479, "answer_score": null, "sibling_qid": "CHE-2026-04-0506-Q001S2", "sibling_text": "hifog and hyper mist difference", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist — how the mist is formed and how it extinguishes fire", "cross_family": true }, { "answer_id": "FIRE-P02-02", "score": 0.4224219024181366, "sibling_score": 0.4224219024181366, "answer_score": null, "sibling_qid": "CHE-2026-02-0117-Q006", "sibling_text": "hi fog operational check", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist — routine testing, alarms and 2/E maintenance", "cross_family": true } ] }, { "qid": "KOL-2019-08-1473-Q001", "text": "Int: chaki Ext: BND Type of ship and engine type.", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "KOL-2019-08-1473", "tray": "new", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.6403705477714539, "sibling_score": 0.6403705477714539, "answer_score": null, "sibling_qid": "MUM-2025-08-2357-Q001", "sibling_text": "type of ship type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.626746654510498, "sibling_score": 0.626746654510498, "answer_score": null, "sibling_qid": "MUM-2026-07-3668-Q004", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.5984711647033691, "sibling_score": 0.5984711647033691, "answer_score": null, "sibling_qid": "CHE-2026-05-0614-Q001", "sibling_text": "start from type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "KOL-2019-08-1473-Q005", "text": "BN, TBN, SAN. For BN and", "family": "NDT & Material Testing", "subtopic": "TAN / TBN", "tid": "KOL-2019-08-1473", "tray": "new", "candidates": [ { "answer_id": "LO-TEST-P01-004", "score": 0.6409604549407959, "sibling_score": 0.6409604549407959, "answer_score": 0.32584338337183, "sibling_qid": "KOL-2018-09-1418-Q003", "sibling_text": "what is bn tbn tan sn", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "TBN, BN, TAN, SAN and the SAE grade", "cross_family": true }, { "answer_id": "CYL-LUB-B-003", "score": 0.43568262457847595, "sibling_score": 0.43568262457847595, "answer_score": 0.31377120316028595, "sibling_qid": "KOL-2021-07-3428-Q005", "sibling_text": "tbn calculation", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "BN / TBN selection and sulphur matching (HSFO, VLSFO, SECA)", "cross_family": true }, { "answer_id": "BDN-001-001", "score": 0.4317130446434021, "sibling_score": 0.4317130446434021, "answer_score": null, "sibling_qid": "MUM-2023-08-0118-Q006", "sibling_text": "content of bdn", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "BDN: what it is and what it must contain", "cross_family": true } ] }, { "qid": "KOL-2019-08-1477-Q004", "text": "2stage air compressor plate type valve construction and why used", "family": "Air Compressor", "subtopic": "Reciprocating Compressor", "tid": "KOL-2019-08-1477", "tray": "new", "candidates": [ { "answer_id": "ACRV-001", "score": 0.606677234172821, "sibling_score": 0.606677234172821, "answer_score": null, "sibling_qid": "CHE-2026-04-0257-Q008", "sibling_text": "two stage air compressor first stage pressure relief valve lift what reason", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "First-stage relief valve lifting or leaking — reasons and checks", "cross_family": false }, { "answer_id": "AC-STAGE-001", "score": 0.593136727809906, "sibling_score": 0.593136727809906, "answer_score": 0.43298686742782594, "sibling_qid": "KOL-2017-03-1282-Q004", "sibling_text": "why 2 stages compression fr compressor", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Why multistage compression — advantages over single-stage", "cross_family": false }, { "answer_id": "MAC-598-001", "score": 0.589036762714386, "sibling_score": 0.589036762714386, "answer_score": 0.5296745032072067, "sibling_qid": "MUM-2025-09-2429-Q005S2", "sibling_text": "decider ques the compressor valve has so many parts why the construction of valve is so complex", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "The main air compressor valve — arrangement, parts, and why the construction is so complex", "cross_family": false } ] }, { "qid": "KOL-2019-08-1477-Q006", "text": "He asked one more cannot remember But very little cross exept turbine construction", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOL-2019-08-1477", "tray": "new", "candidates": [ { "answer_id": "TC-CONST-005", "score": 0.6371103525161743, "sibling_score": 0.6371103525161743, "answer_score": null, "sibling_qid": "MUM-2024-09-2771-Q019", "sibling_text": "construction of compressor side he was interested in parts name and flow of air and cross questions", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Compressor/blower side components and air flow", "cross_family": true }, { "answer_id": "TURBO-CS-P03-001", "score": 0.6277162432670593, "sibling_score": 0.6277162432670593, "answer_score": null, "sibling_qid": "KOL-2020-11-1558-Q002", "sibling_text": "m e t c turbine working and cross questions", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharging principle: rotor drive, exhaust path, nozzle ring", "cross_family": true }, { "answer_id": "MEB-MEC-P03-002", "score": 0.5895544290542603, "sibling_score": 0.5895544290542603, "answer_score": null, "sibling_qid": "MUM-2026-03-2930-Q002", "sibling_text": "asked about cross in mec engine ship specific working etc etc", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "ME camless control architecture — ECS, CCU, EICU, MPC", "cross_family": true } ] }, { "qid": "KOL-2019-08-1478-Q002", "text": "difference between Improved High lift safety vv & full lift safety vv", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2019-08-1478", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.6831488013267517, "sibling_score": 0.6831488013267517, "answer_score": null, "sibling_qid": "KOL-2026-01-3900-Q004", "sibling_text": "diff between improved high lift and high lift", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-003", "score": 0.6722379326820374, "sibling_score": 0.6722379326820374, "answer_score": 0.346946083009243, "sibling_qid": "MUM-2026-05-3246-Q016", "sibling_text": "difference between high lift and improved high lift", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "The accumulation test and the safety valve — required lift, how lift and capacity are verified, and why accumulation must stay inside the limit", "cross_family": false }, { "answer_id": "ERC-345-001", "score": 0.3933891668915748, "sibling_score": null, "answer_score": 0.3933891668915748, "sibling_qid": "", "sibling_text": "safeties and protective devices lead safety critical spring applied electrically released hoist holding brake holds the load on power loss with no operator action travel cross travel brakes and parking devices are maker class specific overload protection load limiter overload cut out load cell prevents lifting above swl", "sibling_family": "", "via": "answer_title", "answer_title": "Safeties and protective devices", "cross_family": false } ] }, { "qid": "KOL-2019-08-1480-Q001", "text": "Trunk type boiler, why it's end is curved", "family": "Boilers - Construction & Components", "subtopic": "Boiler Shell / Furnace Construction", "tid": "KOL-2019-08-1480", "tray": "review", "candidates": [ { "answer_id": "BLR-DRUM-001", "score": 0.7560988068580627, "sibling_score": 0.7560988068580627, "answer_score": 0.5138038694858551, "sibling_qid": "KOL-2021-04-1583-Q003", "sibling_text": "why boiler ends are curved", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Why boiler drum shells and end plates are curved / cylindrical — and how the stress is distributed", "cross_family": false }, { "answer_id": "BLR-MANHOLE-002", "score": 0.6120314598083496, "sibling_score": 0.6120314598083496, "answer_score": null, "sibling_qid": "MUM-2026-02-1255-Q008", "sibling_text": "why elliptical doors in boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Why is the manhole door elliptical, and which way does the major axis run?", "cross_family": false }, { "answer_id": "BLR-TUBE-P01-003", "score": 0.6031375527381897, "sibling_score": 0.6031375527381897, "answer_score": 0.45007227063179017, "sibling_qid": "KOL-2022-01-1653-Q004", "sibling_text": "why boiler tubes are bend i told him for expansion then he asked in straight tube then i said 12 mm extended for expansion he didn t agree 5", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "02. Thermal expansion arrangements for boiler tubes", "cross_family": false } ] }, { "qid": "KOL-2019-08-2316-Q005", "text": "Brushless alternator maintenance.", "family": "Electrical - Generator & Alternator", "subtopic": "Brushless Alternator", "tid": "KOL-2019-08-2316", "tray": "review", "candidates": [ { "answer_id": "BL-ALT-C-004", "score": 0.8413398861885071, "sibling_score": 0.8413398861885071, "answer_score": 0.6222772568464279, "sibling_qid": "KOL-2019-05-2286-Q001", "sibling_text": "brushless alternator periodic maintenance", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Brushless alternator / excitation maintenance", "cross_family": false }, { "answer_id": "BL-ALT-C-001", "score": 0.8188764452934265, "sibling_score": 0.8188764452934265, "answer_score": null, "sibling_qid": "KOL-2018-05-2195-Q001", "sibling_text": "alternator everything why brushless advantage maintenance", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Electrical advantages of brushless excitation over brushed / static", "cross_family": false }, { "answer_id": "BRUSHALT-A-001", "score": 0.7748531699180603, "sibling_score": 0.7748531699180603, "answer_score": null, "sibling_qid": "KOL-2019-10-2338-Q002", "sibling_text": "brushless alternator maintenence exitation system", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01 · Working principle of the brushless alternator / brushless excitation systemHigh", "cross_family": false } ] }, { "qid": "KOL-2019-08-2317-Q001", "text": "Emergency gen regulation", "family": "Electrical - Generator & Alternator", "subtopic": "Emergency DG", "tid": "KOL-2019-08-2317", "tray": "review", "candidates": [ { "answer_id": "EDG-P01-001", "score": 0.751379668712616, "sibling_score": 0.751379668712616, "answer_score": null, "sibling_qid": "KOC-2024-08-1386-Q005", "sibling_text": "emergency gen regulations", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Emergency source of power — the SOLAS requirements", "cross_family": false }, { "answer_id": "EDG-P01-004", "score": 0.708336591720581, "sibling_score": 0.708336591720581, "answer_score": 0.46798344552516935, "sibling_qid": "CHE-2026-05-0623-Q014", "sibling_text": "emergency generator reg", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Emergency generator — explain it as a 2nd Engineer", "cross_family": false }, { "answer_id": "EDG-P01-003", "score": 0.4588178813457489, "sibling_score": null, "answer_score": 0.4588178813457489, "sibling_qid": "", "sibling_text": "emergency switchboard location and the eg board arrangement esb installed as near as practicable to the emergency source reg 43 5 1 where the source is a generator esb in the same space as the eg unless its operation would be impaired reg 43 5 2", "sibling_family": "", "via": "answer_title", "answer_title": "Emergency switchboard — location and the EG–board arrangement", "cross_family": false } ] }, { "qid": "KOL-2019-08-2319-Q004", "text": "how emergency stop works,", "family": "Engine Safety & Shutdowns", "subtopic": "Emergency Stop", "tid": "KOL-2019-08-2319", "tray": "new", "candidates": [ { "answer_id": "CAS-ESTOP-004", "score": 0.5960572957992554, "sibling_score": 0.5960572957992554, "answer_score": 0.49969765841960906, "sibling_qid": "MUM-2026-02-2580-Q008", "sibling_text": "how emergency stop work in me electronic engine full detail procedure", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Slow-down, emergency stop and emergency shut-down — what they are and what happens", "cross_family": true }, { "answer_id": "CPFE-583-014", "score": 0.5672460794448853, "sibling_score": 0.5672460794448853, "answer_score": null, "sibling_qid": "MUM-2025-05-2301-Q001", "sibling_text": "how many emergency stop in framo", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Safeties, interlocks and emergency stops", "cross_family": true }, { "answer_id": "MSB-ESB-D-001", "score": 0.5455160140991211, "sibling_score": 0.5455160140991211, "answer_score": null, "sibling_qid": "KOL-2019-10-2342-Q004", "sibling_text": "emergency shut down", "sibling_family": "", "via": "sibling", "answer_title": "Main & emergency switchboards: function, construction & ship power distribution", "cross_family": false } ] }, { "qid": "KOL-2019-08-2320-Q005", "text": "Min requirement for number of generators onboard. Solas regs How to know how many generators should be running. If Sudden load increase, how many stand by generators are reqd.", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator / Generator", "tid": "KOL-2019-08-2320", "tray": "review", "candidates": [ { "answer_id": "EDG-P01-001", "score": 0.6697651147842407, "sibling_score": 0.6697651147842407, "answer_score": null, "sibling_qid": "MUM-2025-11-1768-Q004", "sibling_text": "4 emergency generator regulation", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Emergency source of power — the SOLAS requirements", "cross_family": false }, { "answer_id": "LS-IMB-A-001", "score": 0.6632979512214661, "sibling_score": 0.6632979512214661, "answer_score": null, "sibling_qid": "KOL-2026-05-4097-Q003", "sibling_text": "one generator taking 380 kw another 320 kw in parallel reason", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Two paralleled generators sharing unequal load — cause and correction", "cross_family": false }, { "answer_id": "EMG-DG-P04-001", "score": 0.6424009203910828, "sibling_score": 0.6424009203910828, "answer_score": null, "sibling_qid": "CHE-2025-11-0311-Q007", "sibling_text": "requirements for emergency generator and on load testing procedure", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Emergency generator on-load / load-test procedure", "cross_family": false } ] }, { "qid": "KOL-2019-08-3268-Q004", "text": "How to fit new bearing in old shaft", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Bearing Clearance", "tid": "KOL-2019-08-3268", "tray": "review", "candidates": [ { "answer_id": "BRG-NOM-005", "score": 0.6722455024719238, "sibling_score": 0.6722455024719238, "answer_score": 0.47624521553516386, "sibling_qid": "KOL-2026-02-3917-Q007", "sibling_text": "thick shell bearing new bearing installed but its not fitting reasons and how will you rectify", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bush, Insert, End-Loaded and Undersize Bearings — and Ordering Data", "cross_family": false }, { "answer_id": "ISB-435-005", "score": 0.6261483430862427, "sibling_score": 0.6261483430862427, "answer_score": null, "sibling_qid": "CHE-2025-12-0224-Q010", "sibling_text": "intermediate shaft bearing removal procedure", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Removing an intermediate shaft bearing for inspection", "cross_family": false }, { "answer_id": "MAIN-BRG-B-001", "score": 0.5952380299568176, "sibling_score": 0.5952380299568176, "answer_score": null, "sibling_qid": "KOC-2022-12-1800-Q001", "sibling_text": "main bearing overhaul procedure where you attach tackles", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you open up / remove / overhaul a main-engine main bearing?", "cross_family": false } ] }, { "qid": "KOL-2019-08-3270-Q001", "text": "Bilge level high alarm action?", "family": "Boilers - Operations & Firing", "subtopic": "Alarm Testing", "tid": "KOL-2019-08-3270", "tray": "review", "candidates": [ { "answer_id": "PCD-P04-02", "score": 0.6501959562301636, "sibling_score": 0.6501959562301636, "answer_score": null, "sibling_qid": "MUM-2025-06-2325-Q004", "sibling_text": "bilge water filled upto floor level actions to start emergency bilge suction", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "02. Emergency bilge suction — the bilge injection valve, testing and SOLAS requirements", "cross_family": true }, { "answer_id": "CAS-ESTOP-001", "score": 0.6486427783966064, "sibling_score": 0.6486427783966064, "answer_score": 0.5066897898912429, "sibling_qid": "KOL-2025-09-1076-Q011", "sibling_text": "3rd engineer call u that he got bilge high level alarm what will be ur action", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Engine-room flooding / rapidly rising bilges — immediate action as 2/E", "cross_family": true }, { "answer_id": "BNKSP-330-003", "score": 0.5946537256240845, "sibling_score": 0.5946537256240845, "answer_score": null, "sibling_qid": "MUM-2025-12-0632-Q009", "sibling_text": "bunker tank overflow alarm actions as 2e", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Bunker tank overflow alarm — response, and recovering oil with the Wilden pump", "cross_family": true } ] }, { "qid": "KOL-2019-08-3969-Q001", "text": "08.19 Ext BND Int CHAKI 1. Function of Power piston, compensation piston, buffer piston, control piston in main engine governor.", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE Governor", "tid": "KOL-2019-08-3969", "tray": "review", "candidates": [ { "answer_id": "GOV-P02-006", "score": 0.7040466070175171, "sibling_score": 0.7040466070175171, "answer_score": 0.5164613962173462, "sibling_qid": "KOL-2018-09-1420-Q007", "sibling_text": "referring to electo hydraulic governor tell me functions of compensating piston power piston buffer piston one more he asked", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Electro-hydraulic (Woodward) governor working", "cross_family": true }, { "answer_id": "AEGOV-006", "score": 0.6995508670806885, "sibling_score": 0.6995508670806885, "answer_score": 0.5779022753238677, "sibling_qid": "KOL-2019-02-1442-Q001", "sibling_text": "woodword governor how many pistons inside and their significance", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Governor Internal Parts and Dashpot Purpose", "cross_family": false }, { "answer_id": "AE-GOV-001", "score": 0.6684842705726624, "sibling_score": 0.6684842705726624, "answer_score": 0.5377058029174805, "sibling_qid": "CHE-2026-04-0505-Q001", "sibling_text": "aux engine governor working diagram explain", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Auxiliary engine governor — working, explained on the diagram", "cross_family": false } ] }, { "qid": "KOL-2019-08-3971-Q006", "text": "manitainence on alternator", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Faraday Law", "tid": "KOL-2019-08-3971", "tray": "review", "candidates": [ { "answer_id": "ALT-MAINT-A-001", "score": 0.7119925618171692, "sibling_score": 0.7119925618171692, "answer_score": 0.5373950809240341, "sibling_qid": "KOL-2023-05-2659-Q003", "sibling_text": "alternator routines maintenance", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Routine maintenance & care of a ship’s alternator", "cross_family": true }, { "answer_id": "ALT-MAINT-C-003", "score": 0.7078485488891602, "sibling_score": 0.7078485488891602, "answer_score": null, "sibling_qid": "KOL-2025-09-2882-Q007", "sibling_text": "bearing routine maintenance of alternator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "3. What bearing checks and maintenance are carried out on an alternator?", "cross_family": true }, { "answer_id": "ALT-MTN-B-001", "score": 0.7034695148468018, "sibling_score": 0.7034695148468018, "answer_score": 0.6060469090938568, "sibling_qid": "MUM-2023-07-2739-Q008", "sibling_text": "maintenence of alternators", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Routine onboard alternator maintenance checks", "cross_family": true } ] }, { "qid": "KOL-2019-08-3971-Q007", "text": "hv equipment", "family": "Electrical - Distribution & MSB", "subtopic": "High Voltage System / Earthing / Shore Supply", "tid": "KOL-2019-08-3971", "tray": "new", "candidates": [ { "answer_id": "T038-P01-002", "score": 0.6358653903007507, "sibling_score": 0.6358653903007507, "answer_score": 0.4763515591621399, "sibling_qid": "MUM-2022-07-1341-Q002", "sibling_text": "hv system", "sibling_family": "", "via": "sibling", "answer_title": "HV system onboard — layout, components, applications, earthing & protection", "cross_family": false }, { "answer_id": "HV-SYS-P05-002", "score": 0.6280996203422546, "sibling_score": 0.6280996203422546, "answer_score": 0.4717423051595688, "sibling_qid": "KOC-2023-10-1291-Q007", "sibling_text": "hv system maintenance", "sibling_family": "", "via": "sibling", "answer_title": "Working on the HV system: precautions, isolation and earthing before maintenance", "cross_family": false }, { "answer_id": "T038-P01-003", "score": 0.6084361672401428, "sibling_score": 0.6084361672401428, "answer_score": 0.5106765866279602, "sibling_qid": "MUM-2026-06-3614-Q006", "sibling_text": "hv lv system", "sibling_family": "Electrical - High Voltage", "via": "sibling", "answer_title": "HV vs LV onboard — systems, equipment and motor terminal boxes", "cross_family": true } ] }, { "qid": "KOL-2019-09-0324-Q002", "text": "Drills on ship, types, frequency According to SOLAS", "family": "ISM Code", "subtopic": "SMS / Functional Requirements", "tid": "KOL-2019-09-0324", "tray": "new", "candidates": [ { "answer_id": "SOLAS-CH-004", "score": 0.6470836400985718, "sibling_score": 0.6470836400985718, "answer_score": null, "sibling_qid": "MUM-2023-05-0102-Q006", "sibling_text": "frequency of drills enclosed space fire drill boat drill", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "SOLAS Chapter III - drills and life-saving appliances", "cross_family": true }, { "answer_id": "UMS-310-001", "score": 0.6215003132820129, "sibling_score": 0.6215003132820129, "answer_score": null, "sibling_qid": "KOC-2025-02-0534-Q005", "sibling_text": "solas requirembts for ums class ship", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a UMS ship and what does SOLAS require? (Part E, regs 46–53)", "cross_family": false }, { "answer_id": "LB-D-001", "score": 0.6146570444107056, "sibling_score": 0.6146570444107056, "answer_score": null, "sibling_qid": "KOC-2026-02-0805-Q014", "sibling_text": "drills participated onboard if you have free fall life boat and designated rescue boat how often lowering drills carried out", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Davit-launched lifeboat — lowering & launching (drill and actual emergency)", "cross_family": true } ] }, { "qid": "KOL-2019-09-1481-Q004", "text": "Semibuilt crankshaft construction and advantages.", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft Material", "tid": "KOL-2019-09-1481", "tray": "review", "candidates": [ { "answer_id": "CRANK-217-001", "score": 0.6740699410438538, "sibling_score": 0.6740699410438538, "answer_score": 0.512728476524353, "sibling_qid": "MUM-2026-01-1240-Q003", "sibling_text": "crankshaft type explain semi built", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankshaft types and how the type is identified", "cross_family": false }, { "answer_id": "CRANK-217-002", "score": 0.6563439965248108, "sibling_score": 0.6563439965248108, "answer_score": 0.5260224938392639, "sibling_qid": "MUM-2026-05-3163-Q008", "sibling_text": "how is semi built crankshaft constructed some cross questions like advantages over fully built and where these type of crankshaft is seen", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Semi-built crankshaft: construction, fitting and comparison", "cross_family": false }, { "answer_id": "CRANK-217-004", "score": 0.5705756545066833, "sibling_score": 0.5705756545066833, "answer_score": null, "sibling_qid": "MUM-2026-02-2570-Q003", "sibling_text": "semi built crank shaft slippage", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankshaft slippage, tell-tale marks and action if found", "cross_family": false } ] }, { "qid": "KOL-2019-09-1482-Q003", "text": "func of brine ejector, air ejector and distillate Pump", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "KOL-2019-09-1482", "tray": "new", "candidates": [ { "answer_id": "FWG-RO-001", "score": 0.5577914714813232, "sibling_score": 0.5577914714813232, "answer_score": null, "sibling_qid": "MUM-2026-06-3639-Q004", "sibling_text": "steam ejector and air ejector", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "How is vacuum created in the FWG, why does it run under vacuum, and what if the vacuum will not come?", "cross_family": true }, { "answer_id": "ACJCW-002", "score": 0.5299161672592163, "sibling_score": 0.5299161672592163, "answer_score": null, "sibling_qid": "KOL-2018-06-1380-Q001", "sibling_text": "how air cooler temp is maintained which valve to throttle and why boiler gauge glass water level posible from far how exhaust valve opening hydraulic ok and the closing spring air ok why no spring pressure reducing valve how centrifugal pump developes vacuum suction saurav paul ext paul int rao", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Maintaining air-cooler outlet temperature and which valve to throttle", "cross_family": false }, { "answer_id": "NPSH-005", "score": 0.518536388874054, "sibling_score": 0.518536388874054, "answer_score": null, "sibling_qid": "KOL-2025-08-2006-Q006", "sibling_text": "why distilate pump is at lowest level of er", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Draw the centrifugal pump curves and show the NPSH. Why is the distillate pump placed at the lowest level of the engine room?", "cross_family": true } ] }, { "qid": "KOL-2019-09-1482-Q004", "text": "Improved high lift,diag and high lift Safety valve difference.", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2019-09-1482", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.743742048740387, "sibling_score": 0.743742048740387, "answer_score": null, "sibling_qid": "KOL-2026-02-3922-Q002", "sibling_text": "diff between highlift and improved highlift safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACRV-005", "score": 0.6875861287117004, "sibling_score": 0.6875861287117004, "answer_score": null, "sibling_qid": "MUM-2026-06-3429-Q010", "sibling_text": "safety valve lift difference", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": false }, { "answer_id": "ACRV-001", "score": 0.4437739819288254, "sibling_score": null, "answer_score": 0.4437739819288254, "sibling_qid": "", "sibling_text": "first stage relief valve lifting or leaking reasons and checks lifting means interstage pressure is actually high passing at a normal gauge reading means a valve defect read the gauge first prime suspect for high interstage a leaking or broken second stage suction valve then a leaking second stage discharge valve or a choked intercooler", "sibling_family": "", "via": "answer_title", "answer_title": "First-stage relief valve lifting or leaking — reasons and checks", "cross_family": false } ] }, { "qid": "KOL-2019-09-2323-Q005", "text": "in ocm, there is a light source, which falls on photo electric cells, what should be its intensity so that it could work perfectly.", "family": "Boilers - Operations & Firing", "subtopic": "Flame Eye / Photocell / Ignition", "tid": "KOL-2019-09-2323", "tray": "new", "candidates": [ { "answer_id": "BFEYE-340-002", "score": 0.532204806804657, "sibling_score": 0.532204806804657, "answer_score": 0.3707412168383598, "sibling_qid": "KOL-2019-03-2276-Q003", "sibling_text": "photocell", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Flame eye / photocell: function, working principle, photoelectric effect and types", "cross_family": false }, { "answer_id": "OWS-15PPM-003", "score": 0.49730125069618225, "sibling_score": 0.49730125069618225, "answer_score": null, "sibling_qid": "KOL-2017-02-0062-Q003", "sibling_text": "ows separator 15 ppm how it s sensing light types", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": true }, { "answer_id": "LT-SRC-012", "score": 0.48981502652168274, "sibling_score": 0.48981502652168274, "answer_score": 0.3340063586831093, "sibling_qid": "MUM-2017-01-1322-Q006", "sibling_text": "specific location and requirement of such lighting", "sibling_family": "", "via": "sibling", "answer_title": "General lighting-source residual: multi-lamp wiring, location & emergency-source SOLAS", "cross_family": false } ] }, { "qid": "KOL-2019-09-2327-Q002", "text": "Types of starter??dol advantages", "family": "Electrical - Motors & Starters", "subtopic": "DOL Starter", "tid": "KOL-2019-09-2327", "tray": "review", "candidates": [ { "answer_id": "STR-DEC-A-001", "score": 0.6598497033119202, "sibling_score": 0.6598497033119202, "answer_score": 0.3462452992796898, "sibling_qid": "KOC-2025-10-1593-Q002", "sibling_text": "types of starters and dol difference from other starters", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "STARTER-DEC-B-003", "score": 0.6417812705039978, "sibling_score": 0.6417812705039978, "answer_score": null, "sibling_qid": "KOC-2026-02-1703-Q007", "sibling_text": "difference between dol starters and other starters", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "DOL starter — use, current, range and limits", "cross_family": false }, { "answer_id": "STARTER-DEC-B-002", "score": 0.6202839016914368, "sibling_score": 0.6202839016914368, "answer_score": null, "sibling_qid": "KOL-2026-04-2984-Q002", "sibling_text": "explain dol starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Why a starter is needed & reducing starting current", "cross_family": false } ] }, { "qid": "KOL-2019-09-2327-Q003", "text": "Navigational light how many on ship min according to solas?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Lifeboat / Davit / LSA", "tid": "KOL-2019-09-2327", "tray": "review", "candidates": [ { "answer_id": "LT-SRC-009", "score": 0.6570630073547363, "sibling_score": 0.6570630073547363, "answer_score": null, "sibling_qid": "KOC-2023-04-1253-Q008", "sibling_text": "navigational lights onboard how many what is special about navigational lights alarm upon failure", "sibling_family": "", "via": "sibling", "answer_title": "Draw and explain the nav-light circuit, fault indication and fuse-failure alarm", "cross_family": false }, { "answer_id": "LT-SRC-005", "score": 0.6406416893005371, "sibling_score": 0.6406416893005371, "answer_score": 0.5567642629146575, "sibling_qid": "KOC-2025-10-1581-Q006", "sibling_text": "navigational light solas requirements", "sibling_family": "", "via": "sibling", "answer_title": "What are the COLREG and special requirements for navigation lights?", "cross_family": false }, { "answer_id": "LT-SRC-004", "score": 0.621924638748169, "sibling_score": 0.621924638748169, "answer_score": 0.5820464342832565, "sibling_qid": "KOC-2023-10-1287-Q004", "sibling_text": "4 navigation light how many location", "sibling_family": "", "via": "sibling", "answer_title": "What navigation lights are carried, where, and how many?", "cross_family": false } ] }, { "qid": "KOL-2019-09-3272-Q002", "text": "Boiler safety valve setting", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2019-09-3272", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-001", "score": 0.8647704720497131, "sibling_score": 0.8647704720497131, "answer_score": null, "sibling_qid": "CHE-2026-04-0500-Q005", "sibling_text": "boiler safety valve setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.8231942057609558, "sibling_score": 0.8231942057609558, "answer_score": null, "sibling_qid": "MUM-2026-03-2935-Q013", "sibling_text": "boiler safety valve setting in presence of surveyor after survey", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.8126317858695984, "sibling_score": 0.8126317858695984, "answer_score": null, "sibling_qid": "KOC-2026-05-0034-Q010", "sibling_text": "boiler safety valve types and how safety valve is set complete procedures", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOL-2019-09-3273-Q001", "text": "Me rpm decreasing, reasons", "family": "2-Stroke - Operations & Casualty", "subtopic": "Casualty / Emergency Stop", "tid": "KOL-2019-09-3273", "tray": "new", "candidates": [ { "answer_id": "GOV-P03-003", "score": 0.6357381343841553, "sibling_score": 0.6357381343841553, "answer_score": 0.3834175646305084, "sibling_qid": "KOL-2024-05-3688-Q007", "sibling_text": "reason for me rpm fluctuations", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Hunting, RPM fluctuation and troubleshooting", "cross_family": true }, { "answer_id": "EGTP-P02-008", "score": 0.5703670978546143, "sibling_score": 0.5703670978546143, "answer_score": null, "sibling_qid": "MUM-2025-10-2461-Q008", "sibling_text": "me speed reducing reasons", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "General Engine Theory — Operating Envelope", "cross_family": true }, { "answer_id": "LS-IMB-A-002", "score": 0.5597890615463257, "sibling_score": 0.5597890615463257, "answer_score": null, "sibling_qid": "KOL-2022-05-2561-Q002", "sibling_text": "two gen running but now ones rpm has gone down practical impact onboard", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "2. Governor speed droop, isochronous control and the load-control switch", "cross_family": true } ] }, { "qid": "KOL-2019-09-3275-Q003", "text": "Fwg troubleshoot.", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "KOL-2019-09-3275", "tray": "new", "candidates": [ { "answer_id": "FWG-RO-003", "score": 0.6416743993759155, "sibling_score": 0.6416743993759155, "answer_score": 0.3918507561087608, "sibling_qid": "CHE-2026-05-0533-Q008", "sibling_text": "checks if fwg not getting production", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "The FWG is not producing enough water or its efficiency has dropped. Reasons, checks and action?", "cross_family": false }, { "answer_id": "FWG-RO-001", "score": 0.46531546115875244, "sibling_score": 0.46531546115875244, "answer_score": null, "sibling_qid": "MUM-2024-06-1081-Q006", "sibling_text": "fwg vaccum not coming", "sibling_family": "Fresh Water & Domestic Systems", "via": "sibling", "answer_title": "How is vacuum created in the FWG, why does it run under vacuum, and what if the vacuum will not come?", "cross_family": true }, { "answer_id": "AVR-EXC-H-001", "score": 0.46404001116752625, "sibling_score": 0.46404001116752625, "answer_score": null, "sibling_qid": "KOL-2022-08-2599-Q003", "sibling_text": "avr troubleshooting when faulty", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "AVR — location, components and fault checks", "cross_family": true } ] }, { "qid": "KOL-2019-10-0326-Q005", "text": "How will you carried rudder painting from inside", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Painting", "tid": "KOL-2019-10-0326", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.744219183921814, "sibling_score": 0.744219183921814, "answer_score": null, "sibling_qid": "MUM-2026-05-3150-Q003", "sibling_text": "rudder internal painting", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "HULL-PAINT-002", "score": 0.744219183921814, "sibling_score": 0.744219183921814, "answer_score": null, "sibling_qid": "CHE-2026-02-0110-Q012", "sibling_text": "rudder internal painting", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Types of hull coating, the paint scheme by section, and why each is used", "cross_family": false }, { "answer_id": "TRS-002", "score": 0.5466446280479431, "sibling_score": 0.5466446280479431, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false } ] }, { "qid": "KOL-2019-10-0327-Q005", "text": "stress Analyser", "family": "Stability & Loadicator", "subtopic": "Stress Analyzer", "tid": "KOL-2019-10-0327", "tray": "new", "candidates": [ { "answer_id": "PPS-230-003", "score": 0.4484631419181824, "sibling_score": 0.4484631419181824, "answer_score": null, "sibling_qid": "CHE-2026-02-0114-Q002", "sibling_text": "pounding stress", "sibling_family": "", "via": "sibling", "answer_title": "Pounding and slamming: what they are, causes, and the ship motions", "cross_family": false }, { "answer_id": "BLR-DRUM-005", "score": 0.4395751357078552, "sibling_score": 0.4395751357078552, "answer_score": null, "sibling_qid": "KOL-2025-07-1813-Q006", "sibling_text": "stress along which axis and stress values", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Boiler manhole-door minor-axis orientation — longitudinal vs transverse stress", "cross_family": true }, { "answer_id": "LB-SDT-A-001", "score": 0.41826725006103516, "sibling_score": 0.41826725006103516, "answer_score": null, "sibling_qid": "MUM-2025-08-0412-Q018", "sibling_text": "static and dynamic stress", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat static and dynamic test — purpose and procedure", "cross_family": true } ] }, { "qid": "KOL-2019-10-0328-Q005", "text": "what are the sections classification socity look for?", "family": "Surveys - Statutory", "subtopic": "PSC / Flag / RO / CIC / MoU", "tid": "KOL-2019-10-0328", "tray": "new", "candidates": [ { "answer_id": "IACS-324-002", "score": 0.5965942740440369, "sibling_score": 0.5965942740440369, "answer_score": 0.36591235995292665, "sibling_qid": "CHE-2025-10-0076-Q006", "sibling_text": "what is classification society it s functions", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "2. What is a classification society, why does a ship need class, and what are its functions?", "cross_family": false }, { "answer_id": "IACS-324-008", "score": 0.5525041818618774, "sibling_score": 0.5525041818618774, "answer_score": null, "sibling_qid": "KOC-2025-09-0652-Q002", "sibling_text": "surveys under classification society", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "8. What surveys are carried out under a classification society?", "cross_family": false }, { "answer_id": "PSC-SURV-P01-003", "score": 0.5505626797676086, "sibling_score": 0.5505626797676086, "answer_score": null, "sibling_qid": "KOL-2019-08-0303-Q001", "sibling_text": "r o and classification society and differences and x ques", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the difference between a Recognised Organisation (RO) and a classification society?", "cross_family": false } ] }, { "qid": "KOL-2019-10-0328-Q006", "text": "what freeboard deal with?told him reserve buoyancy,stability Not accepeted■", "family": "SOLAS", "subtopic": "Load Line Convention", "tid": "KOL-2019-10-0328", "tray": "new", "candidates": [ { "answer_id": "DAM-STAB-P03-001", "score": 0.6121867299079895, "sibling_score": 0.6121867299079895, "answer_score": null, "sibling_qid": "KOL-2019-10-0345-Q005", "sibling_text": "intact and damage stability reserve buoyancy", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Intact, static, dynamic and damage stability: difference and criteria", "cross_family": false }, { "answer_id": "RES-BUOY-005", "score": 0.6020967960357666, "sibling_score": 0.6020967960357666, "answer_score": 0.4818710923194885, "sibling_qid": "KOC-2021-08-0021-Q003", "sibling_text": "what is freeboard reserve buoyancy c q on reserve buoyancy", "sibling_family": "", "via": "sibling", "answer_title": "Freeboard and reserve buoyancy — the relationship", "cross_family": false }, { "answer_id": "RES-BUOY-003", "score": 0.5805039405822754, "sibling_score": 0.5805039405822754, "answer_score": null, "sibling_qid": "KOL-2021-12-3997-Q004", "sibling_text": "how to get reserve buoyancy and freeboard", "sibling_family": "", "via": "sibling", "answer_title": "Calculating and eyeballing reserve buoyancy; maximum buoyancy", "cross_family": false } ] }, { "qid": "KOL-2019-10-0329-Q012", "text": "more.... I dont know..... 6 Significance of ISO 9001:2015...", "family": "ISM Code", "subtopic": "SMS / Functional Requirements", "tid": "KOL-2019-10-0329", "tray": "new", "candidates": [ { "answer_id": "ISM-SMCDOC-A-001", "score": 0.4562036395072937, "sibling_score": 0.4562036395072937, "answer_score": null, "sibling_qid": "KOL-2026-02-1178-Q003", "sibling_text": "iso standard for integrated safety management system", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM certificates: the DOC and SMC family", "cross_family": false }, { "answer_id": "ISM-2E-C-001", "score": 0.4470474123954773, "sibling_score": 0.4470474123954773, "answer_score": null, "sibling_qid": "KOC-2023-01-0137-Q004", "sibling_text": "ism preparation all paper work valid all certificates valid ows is working properly all alarms are working at the end he said he just wants to hear 5 6 very important points that s all", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM audit / survey preparation as Second Engineer — beyond the paperwork", "cross_family": false }, { "answer_id": "SMSFR-001", "score": 0.44416993856430054, "sibling_score": 0.44416993856430054, "answer_score": null, "sibling_qid": "KOL-2026-04-1215-Q004", "sibling_text": "what is isms key ans explain everything regarding isms along with the codes and their specifications of coverage also gave him the example for iso 8217 2017 for bunker sample testing specifications", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What are the functional requirements of the ISM Code and the SMS — and the requirement for internal audit?", "cross_family": false } ] }, { "qid": "KOL-2019-10-0330-Q004", "text": "Cellular container ship..wants to listen about cellular container and that container ship which didnt have hatches.", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2019-10-0330", "tray": "new", "candidates": [ { "answer_id": "DB-TORBOX-B-003", "score": 0.6255362629890442, "sibling_score": 0.6255362629890442, "answer_score": null, "sibling_qid": "CHE-2026-04-0150-Q001", "sibling_text": "type of ship sailed container", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "What is a torsion box — definition and construction", "cross_family": false }, { "answer_id": "SHIPTYPE-BTC-001", "score": 0.5940807461738586, "sibling_score": 0.5940807461738586, "answer_score": 0.47206751704216005, "sibling_qid": "KOC-2025-11-0721-Q013", "sibling_text": "container ship special constructional features", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Container ship construction — cross-section, framing and special structural features", "cross_family": true }, { "answer_id": "DB-TORBOX-B-001", "score": 0.593923032283783, "sibling_score": 0.593923032283783, "answer_score": 0.4382786154747009, "sibling_qid": "KOL-2018-04-0168-Q001", "sibling_text": "what is cellular container ship and why torsion box", "sibling_family": "", "via": "sibling", "answer_title": "Torsion box — purpose, location, and why container ships", "cross_family": false } ] }, { "qid": "KOL-2019-10-0334-Q004", "text": "How to select person for working aloft.", "family": "Risk & Safety Management", "subtopic": "Forward Mast Work", "tid": "KOL-2019-10-0334", "tray": "new", "candidates": [ { "answer_id": "FFH-002", "score": 0.42264169454574585, "sibling_score": 0.42264169454574585, "answer_score": null, "sibling_qid": "KOL-2025-09-1040-Q004", "sibling_text": "what is fsa code never heard just i said it comes under risk assessment he agreed then asked as 2nd engr how many people u will take to for repair work of lifeboat during discharging to close nc as per fsa code", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "Is there an 'FSA Code'? The IMO FSA guideline framework", "cross_family": false }, { "answer_id": "ESE-P01-003", "score": 0.4193791151046753, "sibling_score": 0.4193791151046753, "answer_score": null, "sibling_qid": "MUM-2026-06-3655-Q003", "sibling_text": "person made entry in a enclosed space is not responding how will you react as 2nd engineer as a stand by person", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "General enclosed-space entry procedure as second engineer", "cross_family": false }, { "answer_id": "MLC-WRH-B-004", "score": 0.4189174771308899, "sibling_score": 0.4189174771308899, "answer_score": null, "sibling_qid": "KOC-2022-01-0051-Q006", "sibling_text": "young seafarer as 2e what to ensure explained him about the mlc work and rest hours and also the night work criteria as second eng will not allow young seafarer to do critical jobs alone", "sibling_family": "MLC", "via": "sibling", "answer_title": "Young seafarers — minimum age, night work, and what the 2/E must ensure", "cross_family": true } ] }, { "qid": "KOL-2019-10-0338-Q005", "text": "MLC. When it came under force. Def ofseafarer", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOL-2019-10-0338", "tray": "new", "candidates": [ { "answer_id": "CLC-CIV-B-003", "score": 0.495164692401886, "sibling_score": 0.495164692401886, "answer_score": null, "sibling_qid": "MUM-2026-04-0880-Q004", "sibling_text": "mlc what is shipowner liability", "sibling_family": "MLC", "via": "sibling", "answer_title": "LLMC: purpose, scope and limitation of maritime claims", "cross_family": false }, { "answer_id": "MLC-WRH-B-004", "score": 0.49165016412734985, "sibling_score": 0.49165016412734985, "answer_score": null, "sibling_qid": "KOC-2022-01-0051-Q006", "sibling_text": "young seafarer as 2e what to ensure explained him about the mlc work and rest hours and also the night work criteria as second eng will not allow young seafarer to do critical jobs alone", "sibling_family": "MLC", "via": "sibling", "answer_title": "Young seafarers — minimum age, night work, and what the 2/E must ensure", "cross_family": false }, { "answer_id": "FLAG-ST-007", "score": 0.467367422580719, "sibling_score": null, "answer_score": 0.467367422580719, "sibling_qid": "", "sibling_text": "flag state enforcement of mlc compliance mlc 2006 the fourth pillar with solas marpol and stcw the flag enforces it on its own ships mechanism dmlc part i flag s national requirements part ii owner s measures the maritime labour certificate which the flag or its ro issues after inspection", "sibling_family": "", "via": "answer_title", "answer_title": "Flag State enforcement of MLC compliance", "cross_family": false } ] }, { "qid": "KOL-2019-10-0343-Q001", "text": "Solid ballast Wy we require", "family": "", "subtopic": "GM / KM / KB / Metacentric", "tid": "KOL-2019-10-0343", "tray": "new", "candidates": [ { "answer_id": "BWM-D1D2-P03-001", "score": 0.5124152898788452, "sibling_score": 0.5124152898788452, "answer_score": null, "sibling_qid": "KOC-2022-09-0099-Q007", "sibling_text": "ballast d2 standard", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Regulation D-2 — ballast water performance / discharge standardHigh", "cross_family": false }, { "answer_id": "COT-14", "score": 0.4874660074710846, "sibling_score": 0.4874660074710846, "answer_score": null, "sibling_qid": "KOL-2026-07-4253-Q003", "sibling_text": "segregated ballast and and capacity", "sibling_family": "Ship Construction", "via": "sibling", "answer_title": "SBT applicability, capacity and draught criteria", "cross_family": false }, { "answer_id": "BWM-P01-002", "score": 0.45423611998558044, "sibling_score": 0.45423611998558044, "answer_score": null, "sibling_qid": "CHE-2025-08-0052-Q003", "sibling_text": "ballast management standard when it came", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOL-2019-10-0343-Q005", "text": "ISM n Master review.", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOL-2019-10-0343", "tray": "review", "candidates": [ { "answer_id": "ISM-AUD-P02-006", "score": 0.6946390867233276, "sibling_score": 0.6946390867233276, "answer_score": 0.4383270502090454, "sibling_qid": "KOC-2025-12-0772-Q004", "sibling_text": "masters review in ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Master's review, company / management review and change management", "cross_family": false }, { "answer_id": "ISM-AUD-P02-002", "score": 0.6472706198692322, "sibling_score": 0.6472706198692322, "answer_score": null, "sibling_qid": "MUM-2022-09-0044-Q001", "sibling_text": "ism review", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM Code — what it is, purpose, objectives and structure", "cross_family": false }, { "answer_id": "ISM-ELEM-006", "score": 0.6205103397369385, "sibling_score": 0.6205103397369385, "answer_score": 0.4822978854179382, "sibling_qid": "NOI-2026-09-0024-Q004", "sibling_text": "master review", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Master’s review & management review", "cross_family": false } ] }, { "qid": "KOL-2019-10-0344-Q002", "text": "balanced , semi balanced unbalanced rudder", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2019-10-0344", "tray": "review", "candidates": [ { "answer_id": "TRS-001", "score": 0.662703812122345, "sibling_score": 0.662703812122345, "answer_score": null, "sibling_qid": "KOL-2019-05-3236-Q005", "sibling_text": "rudder stock twisted how will you balance it how to find changed mishsip position", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "The rudder stock is twisted — how do you proceed, recover the true midship datum, and what regulations let you proceed to the next port?", "cross_family": false }, { "answer_id": "SPR-STERN-004", "score": 0.6571341156959534, "sibling_score": 0.6571341156959534, "answer_score": null, "sibling_qid": "MUM-2026-04-0894-Q003", "sibling_text": "what type of rudder i said semi balanced double plated rudder angle of attack stall angle", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Propeller rake & skew", "cross_family": true }, { "answer_id": "STEER-055-A-004", "score": 0.6372610926628113, "sibling_score": 0.6372610926628113, "answer_score": null, "sibling_qid": "KOL-2019-02-3212-Q005", "sibling_text": "rudder is taking more to come from one side to the other reasons and maintenance", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Hydraulic faults — air, sluggish response, locking, leakage", "cross_family": false } ] }, { "qid": "KOL-2019-10-1484-Q013", "text": "fusible plug and safety valve in air bottle, which one to be fitted and why fitted,which one is more beneficial and why ?", "family": "Air Compressor", "subtopic": "MAC / Air Compressor", "tid": "KOL-2019-10-1484", "tray": "new", "candidates": [ { "answer_id": "CO2-SYS-005", "score": 0.6263278722763062, "sibling_score": 0.6263278722763062, "answer_score": null, "sibling_qid": "KOL-2022-11-0697-Q005", "sibling_text": "relief valve in co2 bottle provision", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 system safeties, CO2-room requirements, alarms and ventilation", "cross_family": true }, { "answer_id": "BLR-SURV-P02-001", "score": 0.5936868786811829, "sibling_score": 0.5936868786811829, "answer_score": null, "sibling_qid": "KOC-2026-05-2142-Q007", "sibling_text": "full bore safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": true }, { "answer_id": "ACRV-005", "score": 0.5882388949394226, "sibling_score": 0.5882388949394226, "answer_score": 0.4595716595649719, "sibling_qid": "KOC-2024-09-1868-Q005", "sibling_text": "difference between safety and relief valve", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": false } ] }, { "qid": "KOL-2019-10-1487-Q002", "text": "Type of ship type of engine type of ME and cross Q.", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "KOL-2019-10-1487", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.7193039059638977, "sibling_score": 0.7193039059638977, "answer_score": null, "sibling_qid": "MUM-2025-08-2357-Q001", "sibling_text": "type of ship type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.6856504082679749, "sibling_score": 0.6856504082679749, "answer_score": null, "sibling_qid": "MUM-2026-07-3668-Q004", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "AC-VE-001", "score": 0.6492392420768738, "sibling_score": 0.6492392420768738, "answer_score": null, "sibling_qid": "MUM-2026-01-2904-Q001", "sibling_text": "what type of ship engine power and nomenclature", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Volumetric efficiency: define it, and if it drops how do you improve it (with bumping clearance)?", "cross_family": false } ] }, { "qid": "KOL-2019-10-1487-Q003", "text": "Boiler swerl and shrinkage cross Q.Type of pump used. Cross Q on multistage pump and Axial thrust.", "family": "Boilers - Operations & Firing", "subtopic": "Boiler Water Circulation", "tid": "KOL-2019-10-1487", "tray": "new", "candidates": [ { "answer_id": "PCD-P02-03", "score": 0.6351377367973328, "sibling_score": 0.6351377367973328, "answer_score": 0.5118247330188751, "sibling_qid": "KOL-2021-04-1587-Q002", "sibling_text": "boiler feed p p type multistage centrifugal p p how to eliminate axial thrust", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Boiler feed pump — type, axial thrust, and how high pressure is generated", "cross_family": true }, { "answer_id": "PCD-P01-04", "score": 0.6306946277618408, "sibling_score": 0.6306946277618408, "answer_score": null, "sibling_qid": "CHE-2026-03-0494-Q003", "sibling_text": "multistage pumps and cross questions", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Centrifugal pump characteristic curves — H-Q, efficiency, power, NPSH, operating point, parallel running", "cross_family": true }, { "answer_id": "PCD-P02-01", "score": 0.5992159843444824, "sibling_score": 0.5992159843444824, "answer_score": 0.4699798583984375, "sibling_qid": "KOL-2022-02-3518-Q004", "sibling_text": "axial thrust in centrifugal pump type of pump in boiler feed system", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Axial thrust in a centrifugal / multistage pump — how it is balanced", "cross_family": true } ] }, { "qid": "KOL-2019-10-1488-Q003", "text": "Why compressor valve, plate types, der materials?", "family": "Air Compressor", "subtopic": "Reciprocating Compressor", "tid": "KOL-2019-10-1488", "tray": "new", "candidates": [ { "answer_id": "MAC-598-001", "score": 0.6072326302528381, "sibling_score": 0.6072326302528381, "answer_score": null, "sibling_qid": "MUM-2025-09-2429-Q005S2", "sibling_text": "decider ques the compressor valve has so many parts why the construction of valve is so complex", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "The main air compressor valve — arrangement, parts, and why the construction is so complex", "cross_family": false }, { "answer_id": "AC-STAGE-001", "score": 0.5545936226844788, "sibling_score": 0.5545936226844788, "answer_score": null, "sibling_qid": "KOL-2017-03-3039-Q005", "sibling_text": "air compressor why multi stage why intetcooler why air passes through tubes not in the casing surrounding the tubes of the cooler why bursting disc is given material", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Why multistage compression — advantages over single-stage", "cross_family": false }, { "answer_id": "MAC-353-003", "score": 0.5418433547019958, "sibling_score": 0.5418433547019958, "answer_score": null, "sibling_qid": "KOC-2025-04-1910-Q010", "sibling_text": "what all jobs done on compressor how many discs in compressor suction valve draw a suction valve", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Main air compressor suction / delivery valve inspection and overhaul", "cross_family": false } ] }, { "qid": "KOL-2019-10-1490-Q002", "text": "What engines u workd on (mc and mc-c)", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOL-2019-10-1490", "tray": "new", "candidates": [ { "answer_id": "EGTP-P02-005", "score": 0.6468221545219421, "sibling_score": 0.6468221545219421, "answer_score": 0.4518798589706421, "sibling_qid": "MUM-2026-06-3500-Q002", "sibling_text": "mc vs me engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "MC / MC-C / ME-C and Electronically Controlled Engines", "cross_family": false }, { "answer_id": "MCC-MEB-P01-001", "score": 0.6132646203041077, "sibling_score": 0.6132646203041077, "answer_score": 0.4167064383625984, "sibling_qid": "CHE-2026-05-0563-Q001", "sibling_text": "mc and mc c engine difference", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "MC-C (\"Compact\") engine — design and the main constructional differences from MC", "cross_family": false }, { "answer_id": "ALT-MTN-B-001", "score": 0.6023789644241333, "sibling_score": 0.6023789644241333, "answer_score": null, "sibling_qid": "MUM-2026-02-1281-Q001", "sibling_text": "main engine specification mc c", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Routine onboard alternator maintenance checks", "cross_family": false } ] }, { "qid": "KOL-2019-10-1491-Q005", "text": "axial flow pump with diagram.", "family": "Pumps - Centrifugal & PD", "subtopic": "Axial Flow Pump", "tid": "KOL-2019-10-1491", "tray": "review", "candidates": [ { "answer_id": "PCP-BF01-001", "score": 0.7106757164001465, "sibling_score": 0.7106757164001465, "answer_score": null, "sibling_qid": "KOC-2024-04-1837-Q003", "sibling_text": "mono screw pump diagram", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "What is a progressive cavity pump — construction and working", "cross_family": false }, { "answer_id": "PCD-P01-01", "score": 0.710658848285675, "sibling_score": 0.710658848285675, "answer_score": null, "sibling_qid": "KOC-2024-05-0994-Q004", "sibling_text": "centrifugal pump cross section diagram he expects neat and clean diagram", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Working principle of a centrifugal pump — and why it cannot pump air", "cross_family": false }, { "answer_id": "HSAP-B-006", "score": 0.7011274695396423, "sibling_score": 0.7011274695396423, "answer_score": null, "sibling_qid": "KOL-2019-12-3299-Q003", "sibling_text": "axial pump n it s peculiarities", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Axial piston pump — defects, peculiarities, safeties and alarms", "cross_family": false } ] }, { "qid": "KOL-2019-10-1492-Q007", "text": "foaming in a.c compressor crankcase.reasons.", "family": "Refrigeration & AC", "subtopic": "Compressor / Leakage / Maintenance", "tid": "KOL-2019-10-1492", "tray": "review", "candidates": [ { "answer_id": "REEF-COMP-008", "score": 0.7043523192405701, "sibling_score": 0.7043523192405701, "answer_score": null, "sibling_qid": "MUM-2026-04-1313-Q006", "sibling_text": "reefer conpressor crankcase foaming", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Valves, clearances, oil carry-over, refrigerant-in-oil, frosting, tandem valves, cooling — fault checks", "cross_family": false }, { "answer_id": "REEF-COMP-004", "score": 0.5870513319969177, "sibling_score": 0.5870513319969177, "answer_score": null, "sibling_qid": "NOI-2026-09-0004-Q006", "sibling_text": "lube oil charging in refer compressor", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Charging, replenishing and draining compressor lube oil — including with no charging pump", "cross_family": false }, { "answer_id": "REEF-COMP-003", "score": 0.5821221470832825, "sibling_score": 0.5821221470832825, "answer_score": null, "sibling_qid": "KOL-2018-04-3143-Q004", "sibling_text": "a c compressor lub oil one more function except lubrication 5 guys could any one answer fn6 question no 3 and fn4b qn no 5", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Refrigeration-compressor lube oil — properties, selection, and its jobs beyond lubrication", "cross_family": false } ] }, { "qid": "KOL-2019-10-2331-Q002", "text": "Motor starting pannel check.", "family": "Electrical - Motors & Starters", "subtopic": "Starter Panel / Control Circuit", "tid": "KOL-2019-10-2331", "tray": "review", "candidates": [ { "answer_id": "SPH-A-007", "score": 0.6868659853935242, "sibling_score": 0.6868659853935242, "answer_score": null, "sibling_qid": "MUM-2026-09-3902-Q002", "sibling_text": "motor not starting what to check", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Can a motor be started after single phasing? Why will it not start, and what do you check?", "cross_family": false }, { "answer_id": "SDST-C-001", "score": 0.6779316067695618, "sibling_score": 0.6779316067695618, "answer_score": null, "sibling_qid": "MUM-2025-05-1522-Q004", "sibling_text": "what if motor doesnt changeover to start how will you come to know", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Star-delta faults - stuck in star, both contactors in, dead after changeover, symptoms and safe action.", "cross_family": false }, { "answer_id": "SPH-A-008", "score": 0.6671110987663269, "sibling_score": 0.6671110987663269, "answer_score": null, "sibling_qid": "KOL-2016-10-2075-Q005", "sibling_text": "one motor opened for overhaul standby motor u r starting sparks from terminal box what u ll do u have to run d motor as it is very essential", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "One wire in the terminal box of the auxiliary blower is found heated. What may be the problem?", "cross_family": false } ] }, { "qid": "KOL-2019-10-2332-Q003", "text": "Brushless alternator details and diagram -Rectifer to Main alternator pole including engine shaft)", "family": "Electrical - Generator & Alternator", "subtopic": "Brushless Alternator", "tid": "KOL-2019-10-2332", "tray": "review", "candidates": [ { "answer_id": "BRUSHALT-A-001", "score": 0.7629032731056213, "sibling_score": 0.7629032731056213, "answer_score": 0.5644785583019256, "sibling_qid": "KOL-2021-10-2502-Q002", "sibling_text": "brushless alternator where rotor exciter fitted how current going exciter to main rotor", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01 · Working principle of the brushless alternator / brushless excitation systemHigh", "cross_family": false }, { "answer_id": "BL-ALT-C-002", "score": 0.5758729308843612, "sibling_score": null, "answer_score": 0.5758729308843612, "sibling_qid": "", "sibling_text": "how to identify onboard that an alternator is brushless open the exciter non drive end cover no brushes no brush boxes or springs no slip rings no carbon dust brushless defining proof no slip rings on the main rotor a visible shaft mounted rotating rectifier diode wheel plus surge suppressor", "sibling_family": "", "via": "answer_title", "answer_title": "How to identify onboard that an alternator is brushless", "cross_family": false }, { "answer_id": "ALT-GEN-P03-003", "score": 0.5700617760419845, "sibling_score": null, "answer_score": 0.5700617760419845, "sibling_qid": "", "sibling_text": "brushless alternator advantages and brushed vs brushless comparison brushed dc excitation reaches rotor through brushes and slip rings brushless avr feeds exciter field exciter output is rectified by rotating diodes to feed main rotor", "sibling_family": "", "via": "answer_title", "answer_title": "Brushless alternator advantages and brushed vs brushless comparison", "cross_family": false } ] }, { "qid": "KOL-2019-10-2333-Q001", "text": "trimmer circuit", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Electronic Circuits / Filters", "tid": "KOL-2019-10-2333", "tray": "new", "candidates": [ { "answer_id": "AVR-EXC-H-002", "score": 0.6043075323104858, "sibling_score": 0.6043075323104858, "answer_score": 0.44035391211509706, "sibling_qid": "KOC-2021-09-1146-Q005", "sibling_text": "trimmer switch", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Voltage trimmer — adjustment and biasing", "cross_family": true }, { "answer_id": "AVR-EXC-G-004", "score": 0.57536780834198, "sibling_score": 0.57536780834198, "answer_score": 0.3176822572946548, "sibling_qid": "CHE-2026-04-0383-Q010", "sibling_text": "voltage trimming circuit", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Inside the AVR: sensing, reference and control devices", "cross_family": true }, { "answer_id": "AVR-EXC-H-001", "score": 0.5511687994003296, "sibling_score": 0.5511687994003296, "answer_score": null, "sibling_qid": "KOC-2024-02-1330-Q007", "sibling_text": "avr trimmer explain and location", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "AVR — location, components and fault checks", "cross_family": true } ] }, { "qid": "KOL-2019-10-2334-Q001", "text": "Induction motor rotor types,cage type construction details,which law it follows,what is difference between electrical flux and magnetic flux.", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Faraday Law", "tid": "KOL-2019-10-2334", "tray": "review", "candidates": [ { "answer_id": "ROTSTAT-C-003", "score": 0.6994816660881042, "sibling_score": 0.6994816660881042, "answer_score": null, "sibling_qid": "KOC-2024-01-1319-Q004", "sibling_text": "squirrel cage induction motor rotor and stator construction", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Stator construction, winding & types", "cross_family": true }, { "answer_id": "ROT-STAT-B-002", "score": 0.6966381072998047, "sibling_score": 0.6966381072998047, "answer_score": null, "sibling_qid": "KOL-2020-01-2361-Q002", "sibling_text": "types of induction motor draw the rotor construction of squirrel cage and wound rotor advantage of wound type over squirrel cage", "sibling_family": "Electrical - 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Tankers", "via": "sibling", "answer_title": "What safeties are provided on the cargo tanks of an oil, crude or chemical tanker?", "cross_family": false } ] }, { "qid": "KOL-2019-10-2335-Q005", "text": "Hazardous zone on tanker? In zone 0 wanted to listen a relevant place with cargo tanks?", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOL-2019-10-2335", "tray": "review", "candidates": [ { "answer_id": "TCM-374-005", "score": 0.7006219625473022, "sibling_score": 0.7006219625473022, "answer_score": null, "sibling_qid": "KOC-2026-04-0912-Q020", "sibling_text": "hazard zone in chemical tanker", "sibling_family": "", "via": "sibling", "answer_title": "Gas-freeing a tanker after discharge or before dry dock (why through the IG system)", "cross_family": false }, { "answer_id": "TNK-SAFE-BF26-003", "score": 0.6805710792541504, "sibling_score": 0.6805710792541504, "answer_score": 0.5693509608507156, "sibling_qid": "KOL-2026-01-1153-Q006", "sibling_text": "different type of zones in oil tanker in hazardous area example of equipments fitted in different zones", "sibling_family": "", "via": "sibling", "answer_title": "What safeties, including electrical safeties and Ex ratings, are provided on the deck of a tanker?", "cross_family": false }, { "answer_id": "EXD-EXI-A-002", "score": 0.6165578365325928, "sibling_score": 0.6165578365325928, "answer_score": null, "sibling_qid": "KOC-2022-03-0069-Q004", "sibling_text": "explosion proof explain where in tanker", "sibling_family": "", "via": "sibling", "answer_title": "Ex d (flameproof / explosion-proof) — construction, shipboard applications and maintenance", "cross_family": false } ] }, { "qid": "KOL-2019-10-2337-Q004", "text": "Galley hot plate working, y inductive", "family": "Fault Diagnosis & 2/E Actions", "subtopic": "Fault Diagnosis / 2E Action", "tid": "KOL-2019-10-2337", "tray": "new", "candidates": [ { "answer_id": "AUX-CRANE-002", "score": 0.5836594700813293, "sibling_score": 0.5836594700813293, "answer_score": null, "sibling_qid": "KOL-2020-10-0431-Q009", "sibling_text": "hot plate material in galley 10 overhead crane safety electromagnetic brake in deatails", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Crane brakes, electromagnetic and hydrodynamic brakes, fail-safe arrangements, limit switches, stoppers and accumulators", "cross_family": true }, { "answer_id": "ELEC-SAFE-007", "score": 0.5422813892364502, "sibling_score": 0.5422813892364502, "answer_score": null, "sibling_qid": "KOL-2017-06-2134-Q006", "sibling_text": "galley equipment safeties and asked to draw circuit diagram of hot plate started drawing he said no need", "sibling_family": "", "via": "sibling", "answer_title": "Portable equipment, sockets, light fittings and galley appliances", "cross_family": false }, { "answer_id": "IRT-C-010", "score": 0.5403856039047241, "sibling_score": 0.5403856039047241, "answer_score": null, "sibling_qid": "KOC-2021-05-1132-Q003", "sibling_text": "procedure to check ir of galley heater megger uses is there any minimum ir value specified", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "IR of cables and heaters (non-motor)", "cross_family": true } ] }, { "qid": "KOL-2019-10-2342-Q005", "text": "S/g motor safeties.", "family": "Electrical - Motors & Starters", "subtopic": "Single Phasing", "tid": "KOL-2019-10-2342", "tray": "review", "candidates": [ { "answer_id": "SGM-ELEC-001", "score": 0.7634134888648987, "sibling_score": 0.7634134888648987, "answer_score": 0.47432186007499694, "sibling_qid": "MUM-2022-10-1363-Q001", "sibling_text": "safeties in s g motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What are the safeties, alarms and trips on the steering gear motor as per SOLAS — and how do you activate the safematic?", "cross_family": false }, { "answer_id": "IMSP-007", "score": 0.6800658106803894, "sibling_score": 0.6800658106803894, "answer_score": null, "sibling_qid": "KOL-2024-04-2706-Q008", "sibling_text": "safeties provided in motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What safeties and protections are provided in an induction motor and its starter — overload, short-circuit, thermal? What about a motor on deck, and large three-phase motors?", "cross_family": false }, { "answer_id": "SHAFT-GEN-005", "score": 0.4648886382579803, "sibling_score": null, "answer_score": 0.4648886382579803, "sibling_qid": "", "sibling_text": "safeties provided for a shaft generator standard alternator protections over current short circuit over under voltage over under frequency reverse power paralleled earth fault and preferential load shedding trips sg specific interlocks breaker closes only when synchronised clutch gear engagement interlocks", "sibling_family": "", "via": "answer_title", "answer_title": "Safeties provided for a shaft generator", "cross_family": false } ] }, { "qid": "KOL-2019-10-2345-Q002", "text": "Bridge rectifier and diagrams", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Zener / Diode / Rectifier", "tid": "KOL-2019-10-2345", "tray": "review", "candidates": [ { "answer_id": "EPC-P01-03", "score": 0.8093075752258301, "sibling_score": 0.8093075752258301, "answer_score": 0.5096188247203827, "sibling_qid": "CHE-2026-02-0475-Q003", "sibling_text": "bridge rectifier draw and explain", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Rectifiers — definition, types, and where they are used on board", "cross_family": false }, { "answer_id": "EPC-P01-04", "score": 0.7443916201591492, "sibling_score": 0.7443916201591492, "answer_score": 0.501650196313858, "sibling_qid": "KOL-2021-07-2465-Q003", "sibling_text": "full wave rectifier with diagram", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Half-wave and full-wave rectification — working, waveforms and comparison", "cross_family": false }, { "answer_id": "EPC-P01-02", "score": 0.7330744862556458, "sibling_score": 0.7330744862556458, "answer_score": null, "sibling_qid": "CHE-2026-05-0603-Q005", "sibling_text": "name some diode uses bridge rectifier", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Types of diodes, and where diodes are used on board", "cross_family": false } ] }, { "qid": "KOL-2019-10-3276-Q002", "text": "Safeties during lpg loading discharging relating to nitrogen.", "family": "Cargo Ops - Gas Carriers", "subtopic": "IGC / Gas Carrier Safety", "tid": "KOL-2019-10-3276", "tray": "review", "candidates": [ { "answer_id": "IGC-GAS-010", "score": 0.6789502501487732, "sibling_score": 0.6789502501487732, "answer_score": 0.4839094042778015, "sibling_qid": "MUM-2024-06-2231-Q002", "sibling_text": "safeties during lpg discharge", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Cargo-handling deck safeties and precautions (loading and discharge)", "cross_family": false }, { "answer_id": "LPG-LNG-004", "score": 0.6330706477165222, "sibling_score": 0.6330706477165222, "answer_score": 0.49490287303924557, "sibling_qid": "KOL-2018-03-3128-Q004", "sibling_text": "what is the pressure and temperature of lng during discharging from ship to shore tank at various levels what is the pressure of nitrogen in tank vapouriser pressure", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Loading / discharging, tank pressure, pump and disconnection", "cross_family": false }, { "answer_id": "GC-TANK-004", "score": 0.6229094862937927, "sibling_score": 0.6229094862937927, "answer_score": null, "sibling_qid": "MUM-2026-01-1252-Q005", "sibling_text": "lng gas regarding safeties precautions etc", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Gas-carrier cargo tank construction: materials, insulation, fixing and tank safeties", "cross_family": false } ] }, { "qid": "KOL-2019-10-3280-Q001", "text": "Globe valve overhaul? What checks before opening the wheel( other than locking pin, valve position )", "family": "General Marine Engineering", "subtopic": "Glove Valve", "tid": "KOL-2019-10-3280", "tray": "review", "candidates": [ { "answer_id": "GV-330-002", "score": 0.7215699553489685, "sibling_score": 0.7215699553489685, "answer_score": 0.5726035356521606, "sibling_qid": "CHE-2026-03-0487-Q003", "sibling_text": "globe valve testing and wht are the checks u do", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Gate valve overhaul, checks & the stuck / not-operating valve", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.6662877798080444, "sibling_score": 0.6662877798080444, "answer_score": null, "sibling_qid": "KOL-2026-01-3900-Q005", "sibling_text": "check on safety valve during overhaul", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": true }, { "answer_id": "EXV-P02-003", "score": 0.6300262808799744, "sibling_score": 0.6300262808799744, "answer_score": 0.5038606643676757, "sibling_qid": "MUM-2026-01-2537-Q003", "sibling_text": "checks in exhaust valve before fitting", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Checks and tests after overhaul — before refitting", "cross_family": true } ] }, { "qid": "KOL-2019-10-3281-Q002", "text": "Refer system pressure test safeties and procedure.", "family": "Refrigeration & AC", "subtopic": "Refer Safety", "tid": "KOL-2019-10-3281", "tray": "review", "candidates": [ { "answer_id": "REEF-COMP-001", "score": 0.6956506371498108, "sibling_score": 0.6956506371498108, "answer_score": null, "sibling_qid": "KOL-2026-05-4196-Q005", "sibling_text": "refer compressor safeties", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Reefer/AC compressor safeties and cut-outs — safety valve, HP and LP cut-outs", "cross_family": false }, { "answer_id": "CO2-SYS-002", "score": 0.6882702112197876, "sibling_score": 0.6882702112197876, "answer_score": null, "sibling_qid": "KOC-2026-03-0874-Q018", "sibling_text": "how to pressure test the system at what pressure is it tested relief valve pressure setting in the line", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 maintenance, inspection, testing and survey routines", "cross_family": true }, { "answer_id": "RAC-HPLP-389-001", "score": 0.6850835680961609, "sibling_score": 0.6850835680961609, "answer_score": null, "sibling_qid": "MUM-2025-10-2438-Q002", "sibling_text": "refer system tripping on high pressure", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Refrigeration / AC compressor trips on high pressure — causes and checks", "cross_family": false } ] }, { "qid": "KOL-2019-10-3283-Q003", "text": "Ae rpm fluctuating reasons", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE Governor", "tid": "KOL-2019-10-3283", "tray": "review", "candidates": [ { "answer_id": "GOV-P03-003", "score": 0.7085027098655701, "sibling_score": 0.7085027098655701, "answer_score": 0.4929727792739868, "sibling_qid": "KOL-2024-05-3688-Q007", "sibling_text": "reason for me rpm fluctuations", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Hunting, RPM fluctuation and troubleshooting", "cross_family": true }, { "answer_id": "LS-IMB-A-002", "score": 0.5500001907348633, "sibling_score": 0.5500001907348633, "answer_score": null, "sibling_qid": "KOL-2022-05-2561-Q002", "sibling_text": "two gen running but now ones rpm has gone down practical impact onboard", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "2. Governor speed droop, isochronous control and the load-control switch", "cross_family": true }, { "answer_id": "AEDEC-291-008", "score": 0.5373603701591492, "sibling_score": 0.5373603701591492, "answer_score": null, "sibling_qid": "KOL-2020-11-3357-Q002", "sibling_text": "after a e decarb rpm is not picking up what are the reasons", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "8. Post-decarb abnormal running — overspeed, RPM, air-start, LO", "cross_family": false } ] }, { "qid": "KOL-2019-10-3285-Q001", "text": "In s/g After giving command angle indicator is coming to the desired angle but rudder not(I said for rudder stock shearing off,tiller arm is slipping with stock,some obstruction hindering rudder movement nt much satisfied)", "family": "Steering Gear & Hydraulics", "subtopic": "Tiller / Rudder Stock", "tid": "KOL-2019-10-3285", "tray": "review", "candidates": [ { "answer_id": "TRS-001", "score": 0.7303617596626282, "sibling_score": 0.7303617596626282, "answer_score": 0.5144154846668243, "sibling_qid": "KOL-2019-05-3236-Q005", "sibling_text": "rudder stock twisted how will you balance it how to find changed mishsip position", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "The rudder stock is twisted — how do you proceed, recover the true midship datum, and what regulations let you proceed to the next port?", "cross_family": false }, { "answer_id": "STEER-055-A-004", "score": 0.7132830023765564, "sibling_score": 0.7132830023765564, "answer_score": null, "sibling_qid": "KOL-2019-02-3212-Q005", "sibling_text": "rudder is taking more to come from one side to the other reasons and maintenance", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Hydraulic faults — air, sluggish response, locking, leakage", "cross_family": false }, { "answer_id": "TRS-002", "score": 0.711477518081665, "sibling_score": 0.711477518081665, "answer_score": 0.520217114686966, "sibling_qid": "KOC-2026-02-1103-Q008", "sibling_text": "how rudder stock and carrier bearing is attached told 2 half fitted bolts x does bearing turn with rudder i told yes then he told that there are 2 types one turn with rudder other dont turn with rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false } ] }, { "qid": "KOL-2019-10-3285-Q004", "text": "M/e foundation bolt loosen,indication,cause,consequence,immediat e action", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Holding Down Bolts", "tid": "KOL-2019-10-3285", "tray": "new", "candidates": [ { "answer_id": "TBR-TT-P02-002", "score": 0.6434597373008728, "sibling_score": 0.6434597373008728, "answer_score": null, "sibling_qid": "MUM-2025-07-1148-Q004", "sibling_text": "tie bolts slack what will be the indications", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Checking tie rod tightness / slackness — stopped and running", "cross_family": false }, { "answer_id": "FB-COUP-001", "score": 0.5901232361793518, "sibling_score": 0.5901232361793518, "answer_score": null, "sibling_qid": "MUM-2026-02-1255-Q012", "sibling_text": "types of foundation bolts", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What fitted bolts are, what they do, and where they sit onboard", "cross_family": false }, { "answer_id": "BBR-001", "score": 0.5849778652191162, "sibling_score": 0.5849778652191162, "answer_score": null, "sibling_qid": "KOL-2019-07-3250-Q002", "sibling_text": "compressor foundation bolt sheared off how to remove", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "How do you extract a broken or sheared stud/bolt from machinery or structure?", "cross_family": true } ] }, { "qid": "KOL-2019-11-0349-Q001", "text": "1 casualty in engine room fire how to rescue?", "family": "Risk & Safety Management", "subtopic": "Enclosed Space Entry", "tid": "KOL-2019-11-0349", "tray": "new", "candidates": [ { "answer_id": "CAS-ESTOP-005", "score": 0.6163995265960693, "sibling_score": 0.6163995265960693, "answer_score": 0.506900805234909, "sibling_qid": "KOC-2024-09-0413-Q009", "sibling_text": "firefighting in engine room", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "After an engine-room fire or explosion — action as 2/E", "cross_family": true }, { "answer_id": "RISK-RA-D-005", "score": 0.5932881832122803, "sibling_score": 0.5932881832122803, "answer_score": null, "sibling_qid": "KOL-2022-09-0683-Q003", "sibling_text": "ship is at ship repairing yard tell me the area where chances of fire i only told 2 area he said there are number of places where chances of fire and as a 2nd eng you have to check ensure the safety", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "CAS-ESTOP-001", "score": 0.584784746170044, "sibling_score": 0.584784746170044, "answer_score": null, "sibling_qid": "KOC-2026-09-2189-Q004", "sibling_text": "person found unconscious in engine room what is your action", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Engine-room flooding / rapidly rising bilges — immediate action as 2/E", "cross_family": true } ] }, { "qid": "KOL-2019-11-0349-Q002", "text": "how to select person for a work?", "family": "Risk & Safety Management", "subtopic": "Permit to Work / Enclosed Space", "tid": "KOL-2019-11-0349", "tray": "new", "candidates": [ { "answer_id": "FFH-002", "score": 0.34411823749542236, "sibling_score": 0.34411823749542236, "answer_score": null, "sibling_qid": "KOL-2025-09-1040-Q004", "sibling_text": "what is fsa code never heard just i said it comes under risk assessment he agreed then asked as 2nd engr how many people u will take to for repair work of lifeboat during discharging to close nc as per fsa code", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "Is there an 'FSA Code'? The IMO FSA guideline framework", "cross_family": false }, { "answer_id": "STARTER-DEC-B-001", "score": 0.344097375869751, "sibling_score": 0.344097375869751, "answer_score": null, "sibling_qid": "KOL-2026-01-2955-Q005", "sibling_text": "criteria for selecting starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Selecting the right starter for a motor", "cross_family": true }, { "answer_id": "ISM-ELEM-004", "score": 0.34178948402404785, "sibling_score": 0.34178948402404785, "answer_score": 0.2800974100828171, "sibling_qid": "MUM-2023-03-0096-Q004", "sibling_text": "ism resource and personnel", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Resources & personnel (Element 6)", "cross_family": true } ] }, { "qid": "KOL-2019-11-0350-Q001", "text": "Type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2019-11-0350", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8366292119026184, "sibling_score": 0.8366292119026184, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8018827438354492, "sibling_score": 0.8018827438354492, "answer_score": 0.5473108768463134, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8003316521644592, "sibling_score": 0.8003316521644592, "answer_score": 0.5218650102615356, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "KOL-2019-11-0351-Q002", "text": "Imdg code, new inclusions from Jan 2020", "family": "Other Conventions", "subtopic": "IMDG Code", "tid": "KOL-2019-11-0351", "tray": "new", "candidates": [ { "answer_id": "IMDG-012", "score": 0.5410823822021484, "sibling_score": 0.5410823822021484, "answer_score": 0.32478569746017455, "sibling_qid": "KOC-2025-03-0571-Q003", "sibling_text": "latest ammendments in imdg code", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What are the latest amendments to the IMDG Code?", "cross_family": false }, { "answer_id": "IMDG-002", "score": 0.5286022424697876, "sibling_score": 0.5286022424697876, "answer_score": null, "sibling_qid": "KOC-2023-01-0135-Q004", "sibling_text": "imdg code classifications more needed", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What are the classes and categories of cargo under the IMDG Code? Explain all nine", "cross_family": false }, { "answer_id": "IMDG-001", "score": 0.5013183951377869, "sibling_score": 0.5013183951377869, "answer_score": null, "sibling_qid": "KOC-2023-08-0212-Q007", "sibling_text": "imdg code content", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is the IMDG Code? Its contents, parts and supplements", "cross_family": false } ] }, { "qid": "KOL-2019-11-0352-Q002", "text": "What is relationship between container ship and solas chapter 6.", "family": "SOLAS", "subtopic": "Container Stability", "tid": "KOL-2019-11-0352", "tray": "new", "candidates": [ { "answer_id": "SHIPTYPE-BTC-001", "score": 0.5744759440422058, "sibling_score": 0.5744759440422058, "answer_score": null, "sibling_qid": "KOC-2025-11-0721-Q013", "sibling_text": "container ship special constructional features", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Container ship construction — cross-section, framing and special structural features", "cross_family": false }, { "answer_id": "CONT-FIRE-001", "score": 0.5641464591026306, "sibling_score": 0.5641464591026306, "answer_score": null, "sibling_qid": "MUM-2026-05-3263-Q001", "sibling_text": "solas latest amendments for container vessel", "sibling_family": "Cargo Ops - Container Ships", "via": "sibling", "answer_title": "What are the latest requirements, amendments and advancements for fire safety on container ships?", "cross_family": true }, { "answer_id": "FIRE-P04-06", "score": 0.5482504963874817, "sibling_score": 0.5482504963874817, "answer_score": 0.44115886092185974, "sibling_qid": "MUM-2025-10-0508-Q008", "sibling_text": "additional fire fighting in container which is not there on other ships", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Container-ship additional firefighting — SOLAS II-2/10.7.3, water-mist lance, HydroPen", "cross_family": true } ] }, { "qid": "KOL-2019-11-0353-Q002", "text": "VGM and what is the relation with solas chapter 6.", "family": "SOLAS", "subtopic": "Container Stability", "tid": "KOL-2019-11-0353", "tray": "new", "candidates": [ { "answer_id": "SOLAS-OVW-008", "score": 0.3448910117149353, "sibling_score": 0.3448910117149353, "answer_score": null, "sibling_qid": "MUM-2026-03-0802-Q002", "sibling_text": "solas chapter 7", "sibling_family": "SOLAS - General (HOLD)", "via": "sibling", "answer_title": "SOLAS Chapter VII — carriage of dangerous goods", "cross_family": true }, { "answer_id": "SOLAS-CH-010", "score": 0.34441787004470825, "sibling_score": 0.34441787004470825, "answer_score": null, "sibling_qid": "KOC-2023-08-0213-Q008", "sibling_text": "solas chapter 7", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS Chapter VII - carriage of dangerous goods", "cross_family": true }, { "answer_id": "SOLAS-CH-015", "score": 0.3384993076324463, "sibling_score": 0.3384993076324463, "answer_score": 0.23716389387845993, "sibling_qid": "KOC-2025-01-0505-Q007", "sibling_text": "solas chapter", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS chapters overview - current count and scope", "cross_family": true } ] }, { "qid": "KOL-2019-11-0353-Q004", "text": "Chapter 9 of solas. What are the elements of ism", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOL-2019-11-0353", "tray": "new", "candidates": [ { "answer_id": "ISM-ELEM-003", "score": 0.6034356355667114, "sibling_score": 0.6034356355667114, "answer_score": 0.3862379506230354, "sibling_qid": "CHE-2026-02-0116-Q008", "sibling_text": "three elements of ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": false }, { "answer_id": "SOLAS-CH-007", "score": 0.4968111515045166, "sibling_score": 0.4968111515045166, "answer_score": 0.2881018579006195, "sibling_qid": "KOC-2023-03-0160-Q008", "sibling_text": "ism which solas chapter it comes under", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS Chapter IX - ISM Code and certificates", "cross_family": true }, { "answer_id": "ISPS-SL-002", "score": 0.48810893297195435, "sibling_score": 0.48810893297195435, "answer_score": null, "sibling_qid": "KOL-2021-12-0578-Q006", "sibling_text": "9 elements of isps code", "sibling_family": "ISPS", "via": "sibling", "answer_title": "Elements, contents, functional requirements, training and equipment", "cross_family": true } ] }, { "qid": "KOL-2019-11-0354-Q001", "text": "what is bulk carrier", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2019-11-0354", "tray": "review", "candidates": [ { "answer_id": "SOLAS12-BC-A-001", "score": 0.7323971390724182, "sibling_score": 0.7323971390724182, "answer_score": 0.5346672832965851, "sibling_qid": "MUM-2026-06-3626-Q002", "sibling_text": "define bulk carrier", "sibling_family": "SOLAS - General (HOLD)", "via": "sibling", "answer_title": "SOLAS definition and scope of a bulk carrier", "cross_family": true }, { "answer_id": "SOLAS-XII-BC-002", "score": 0.6718637347221375, "sibling_score": 0.6718637347221375, "answer_score": null, "sibling_qid": "KOC-2026-09-2208-Q005", "sibling_text": "bulk carrier as per solas", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Explain SOLAS Chapter XII — the additional safety measures for bulk carriers", "cross_family": true }, { "answer_id": "SHIPTYPE-BTC-003", "score": 0.503000745177269, "sibling_score": null, "answer_score": 0.503000745177269, "sibling_qid": "", "sibling_text": "general cargo ship vs bulk carrier constructional differences and bulk carrier safety features general cargo tween decks multi level box holds single or double bottom own cargo gear more subdivision for mixed and part cargoes bulk carrier single deck topside upper wing tanks and hopper lower wing tanks make the hold self trimming and limit cargo shift corrugated transverse bulkheads wide hatches d", "sibling_family": "", "via": "answer_title", "answer_title": "General cargo ship vs bulk carrier — constructional differences and bulk-carrier safety features", "cross_family": false } ] }, { "qid": "KOL-2019-11-0356-Q001", "text": "Classification socity, from where classifacion socity take guidance during construction, certificate.", "family": "Surveys - Statutory", "subtopic": "PSC / Flag / RO / CIC / MoU", "tid": "KOL-2019-11-0356", "tray": "new", "candidates": [ { "answer_id": "CERT-LIST-P01-001", "score": 0.6307621002197266, "sibling_score": 0.6307621002197266, "answer_score": null, "sibling_qid": "KOL-2023-05-2653-Q004", "sibling_text": "classsifiation sociaty certificate", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "List the statutory certificates carried onboard a ship.", "cross_family": false }, { "answer_id": "IACS-324-005", "score": 0.5873100161552429, "sibling_score": 0.5873100161552429, "answer_score": 0.4308313190937042, "sibling_qid": "KOL-2021-12-0583-Q006", "sibling_text": "statutory certificate definition ro classification society difference", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "5. What is the difference between a classification society, a Recognized Organization, and statutory certification?", "cross_family": false }, { "answer_id": "IACS-324-008", "score": 0.5625842809677124, "sibling_score": 0.5625842809677124, "answer_score": null, "sibling_qid": "KOC-2025-09-0652-Q002", "sibling_text": "surveys under classification society", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "8. What surveys are carried out under a classification society?", "cross_family": false } ] }, { "qid": "KOL-2019-11-1496-Q001", "text": "Type of engine, specifications", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOL-2019-11-1496", "tray": "review", "candidates": [ { "answer_id": "ENG-NOM-006", "score": 0.8062860369682312, "sibling_score": 0.8062860369682312, "answer_score": null, "sibling_qid": "CHE-2026-03-0181-Q001", "sibling_text": "engine specification", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Short-form asks: SMC-C, LMC, and ME vs MC quickly", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.8037287592887878, "sibling_score": 0.8037287592887878, "answer_score": 0.48985927700996396, "sibling_qid": "MUM-2026-07-3719-Q006", "sibling_text": "type of engine and it s specification", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false }, { "answer_id": "ETP-344-P03-001", "score": 0.7974323034286499, "sibling_score": 0.7974323034286499, "answer_score": null, "sibling_qid": "MUM-2026-07-3737-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false } ] }, { "qid": "KOL-2019-11-1497-Q002", "text": "Semi built crankshaft", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft Material", "tid": "KOL-2019-11-1497", "tray": "review", "candidates": [ { "answer_id": "CRANK-217-001", "score": 0.789495050907135, "sibling_score": 0.789495050907135, "answer_score": 0.5828921675682067, "sibling_qid": "MUM-2026-01-1240-Q003", "sibling_text": "crankshaft type explain semi built", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankshaft types and how the type is identified", "cross_family": false }, { "answer_id": "CRANK-217-002", "score": 0.7277039885520935, "sibling_score": 0.7277039885520935, "answer_score": 0.5741560816764831, "sibling_qid": "MUM-2026-05-3163-Q008", "sibling_text": "how is semi built crankshaft constructed some cross questions like advantages over fully built and where these type of crankshaft is seen", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Semi-built crankshaft: construction, fitting and comparison", "cross_family": false }, { "answer_id": "CRANK-217-004", "score": 0.6919366717338562, "sibling_score": 0.6919366717338562, "answer_score": null, "sibling_qid": "MUM-2026-02-2570-Q003", "sibling_text": "semi built crank shaft slippage", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankshaft slippage, tell-tale marks and action if found", "cross_family": false } ] }, { "qid": "KOL-2019-11-1497-Q004", "text": "Bore cooling", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "KOL-2019-11-1497", "tray": "new", "candidates": [ { "answer_id": "PC-TP-003", "score": 0.6050249338150024, "sibling_score": 0.6050249338150024, "answer_score": 0.4451925218105316, "sibling_qid": "KOC-2023-07-0925-Q009", "sibling_text": "how piston crown cooling taking place lube circuit from telescopic pipe where it return back", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston crown cooling oil circuit and where the oil returns", "cross_family": false }, { "answer_id": "CYL-LINER-P01-001", "score": 0.6007323861122131, "sibling_score": 0.6007323861122131, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001S4", "sibling_text": "liner cooling liner calibration", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Carrying out main-engine liner calibration (gauging)", "cross_family": false }, { "answer_id": "PIST-CSI-A-002", "score": 0.5856212973594666, "sibling_score": 0.5856212973594666, "answer_score": null, "sibling_qid": "CHE-2025-08-0190-Q002", "sibling_text": "type of piston type of cooling", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "2-stroke piston: parts, cooling arrangement and operating stresses", "cross_family": false } ] }, { "qid": "KOL-2019-11-1878-Q003", "text": "How liner is casted? Material? Properties - each in detail.", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "KOL-2019-11-1878", "tray": "new", "candidates": [ { "answer_id": "CYL-LINER-P04-006", "score": 0.554487943649292, "sibling_score": 0.554487943649292, "answer_score": 0.3855988249182701, "sibling_qid": "KOL-2019-06-3245-Q006", "sibling_text": "liner manufacturing process material", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Material & manufacturing", "cross_family": false }, { "answer_id": "CYL-LINER-P02-003", "score": 0.516365110874176, "sibling_score": 0.516365110874176, "answer_score": null, "sibling_qid": "KOL-2021-07-1606-Q006", "sibling_text": "liner material liner wear", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L3 · T044-PART_02-G003High", "cross_family": false }, { "answer_id": "CYL-LINER-P02-009", "score": 0.4731941223144531, "sibling_score": 0.4731941223144531, "answer_score": null, "sibling_qid": "MUM-2021-09-1010-Q007", "sibling_text": "what is ridging of liner", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L9 · T044-PART_02-G009High", "cross_family": false } ] }, { "qid": "KOL-2019-11-2349-Q005", "text": "And one more, can't recall. Thanks shubhendu, Rakesh, piyush, vikas, keshav sir. Cleared both.", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOL-2019-11-2349", "tray": "new", "candidates": [ { "answer_id": "GHG-591-004", "score": 0.4536445736885071, "sibling_score": 0.4536445736885071, "answer_score": null, "sibling_qid": "KOL-2021-08-0546-Q007", "sibling_text": "what are ghg water vapour is ghg buy why not so dangerous as i had prepared all the questions of mitra sir no x questions by mitra sir i answered all the answers then again rao sir started with angry face what is racking how to reduce i answered whatever given in kunjal shah but he wanted more after that he says you are not upto mark but still by grace marks i am passing you and change your thinking finally cleared class 2 thank you guys especially ravi roushan and this group was very helpful for preparation keep posting guys best of luck", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Water vapour is a greenhouse gas — why is it not the dangerous one, and why does everyone concentrate on CO2?", "cross_family": true }, { "answer_id": "AIR-REF-001", "score": 0.4435415267944336, "sibling_score": 0.4435415267944336, "answer_score": null, "sibling_qid": "MUM-2022-07-2694-Q005", "sibling_text": "air in the reefer system indication so many x questions and he was not accepting any thing at last said nothing only wankhede sir said padhai kiya karo all d best do t know whether pass fail waiting for the update in dg site", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "1. Indications that air is present in a refrigeration system", "cross_family": true }, { "answer_id": "MOB-MKR-001", "score": 0.4359315037727356, "sibling_score": 0.4359315037727356, "answer_score": null, "sibling_qid": "KOL-2019-10-0326-Q003", "sibling_text": "mob forgot but choudhary asking dissider questions", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What is the MOB marker, what is it for, and what does it consist of? 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Its contents, parts and supplements", "cross_family": false }, { "answer_id": "IMDG-002", "score": 0.7302835583686829, "sibling_score": 0.7302835583686829, "answer_score": 0.3020862728357315, "sibling_qid": "KOC-2025-07-0619-Q002", "sibling_text": "imdg code classes", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What are the classes and categories of cargo under the IMDG Code? Explain all nine", "cross_family": false }, { "answer_id": "IMO-CODES-P03-001", "score": 0.32970476150512695, "sibling_score": null, "answer_score": 0.32970476150512695, "sibling_qid": "", "sibling_text": "important imo conventions and codes parent links", "sibling_family": "", "via": "answer_title", "answer_title": "Important IMO conventions and codes: parent links", "cross_family": false } ] }, { "qid": "KOL-2019-12-0367-Q006", "text": "purpose of e/r log book 8-8-2019 Chaki and chakraborty", "family": "ISM Code", "subtopic": "SMS / Functional Requirements", "tid": "KOL-2019-12-0367", "tray": "new", "candidates": [ { "answer_id": "UMS-310-001", "score": 0.3958429992198944, "sibling_score": 0.3958429992198944, "answer_score": null, "sibling_qid": "MUM-2024-08-2769-Q002", "sibling_text": "ums regulations for e r", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a UMS ship and what does SOLAS require? (Part E, regs 46–53)", "cross_family": false }, { "answer_id": "ELEC-SURV-003", "score": 0.3838627338409424, "sibling_score": 0.3838627338409424, "answer_score": null, "sibling_qid": "MUM-2022-09-1355-Q010", "sibling_text": "what all things you write on log book reagardnig electrical", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Documents, certificates & trend records", "cross_family": true }, { "answer_id": "AIRP-188-005", "score": 0.37589162588119507, "sibling_score": 0.37589162588119507, "answer_score": null, "sibling_qid": "KOC-2026-02-0835-Q007", "sibling_text": "ods log what all entries", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "ODS Record Book and the IAPP equipment list — what and where?", "cross_family": true } ] }, { "qid": "KOL-2019-12-0370-Q003", "text": "Ism emergency preparedness", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOL-2019-12-0370", "tray": "review", "candidates": [ { "answer_id": "ISM-ELEM-005", "score": 0.7617992162704468, "sibling_score": 0.7617992162704468, "answer_score": 0.45560452044010163, "sibling_qid": "MUM-2025-08-0393-Q006", "sibling_text": "ism emergency preparedness", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Emergency preparedness (Element 8)", "cross_family": false }, { "answer_id": "ISM-DPA-004", "score": 0.5723881125450134, "sibling_score": 0.5723881125450134, "answer_score": null, "sibling_qid": "CHE-2026-05-0557-Q015", "sibling_text": "masters overriding authority and emergency preparedness internal deciding question", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Master's overriding authority and the DPA relationship (ISM chapters)", "cross_family": false }, { "answer_id": "SMSFR-002", "score": 0.5617411136627197, "sibling_score": 0.5617411136627197, "answer_score": null, "sibling_qid": "KOL-2019-12-0373-Q002", "sibling_text": "i e sms manual nd its contents 4 emergency preparedness under sms manual 5 hru in liferaft chakraborty func 3", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the Safety Management System — the SMS manual, its contents, objectives, why it is needed onboard, and the company SMS policy?", "cross_family": false } ] }, { "qid": "KOL-2019-12-0370-Q004", "text": "Who is a seafarers", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOL-2019-12-0370", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-004", "score": 0.6091294884681702, "sibling_score": 0.6091294884681702, "answer_score": null, "sibling_qid": "MUM-2026-01-0664-Q004", "sibling_text": "young seafarers", "sibling_family": "MLC", "via": "sibling", "answer_title": "Young seafarers — minimum age, night work, and what the 2/E must ensure", "cross_family": false }, { "answer_id": "MLC-WRH-B-011", "score": 0.46556469798088074, "sibling_score": 0.46556469798088074, "answer_score": 0.380435611307621, "sibling_qid": "MUM-2026-04-0914-Q007", "sibling_text": "what is the complaint procedure onboard for seafarer", "sibling_family": "MLC", "via": "sibling", "answer_title": "The on-board complaint and grievance procedure", "cross_family": false }, { "answer_id": "STCW-MAN-006", "score": 0.4602479636669159, "sibling_score": 0.4602479636669159, "answer_score": 0.36685379743576046, "sibling_qid": "KOL-2021-08-0546-Q002", "sibling_text": "categories of seafarers as per stcw he was too much angry about the coc attempt i don t why he said very low level thinking i was totally blank in both questions then he said mitra sir to start", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What are the levels and categories of seafarer under STCW, and what are the duties of the Second Engineer at management level?", "cross_family": true } ] }, { "qid": "KOL-2019-12-0371-Q003", "text": "Where is the max stress area on deck plating", "family": "SOLAS", "subtopic": "Shell Plating / Strakes", "tid": "KOL-2019-12-0371", "tray": "new", "candidates": [ { "answer_id": "FFF-A-003", "score": 0.5102052688598633, "sibling_score": 0.5102052688598633, "answer_score": null, "sibling_qid": "KOC-2026-05-0001-Q001", "sibling_text": "stresses in fire line on deck and cross", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fire main, hydrants, isolating and deck valves, and fire-line fittings", "cross_family": true }, { "answer_id": "SHELL-PLT-B-001", "score": 0.47272446751594543, "sibling_score": 0.47272446751594543, "answer_score": 0.434587949514389, "sibling_qid": "KOL-2019-12-0371-Q002", "sibling_text": "how deck plating is attached to shell", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Sheer strake — location, why strengthened, deck-edge / gunwale connection", "cross_family": false }, { "answer_id": "FWFB-P02-008", "score": 0.46089497208595276, "sibling_score": 0.46089497208595276, "answer_score": 0.37095408141613007, "sibling_qid": "KOC-2021-05-0937-Q007", "sibling_text": "stresses on transverse girder", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Forces and stresses on transverse girders; action for cracks", "cross_family": false } ] }, { "qid": "KOL-2019-12-0373-Q001", "text": "Surveyr- chakraborty 1- lpg cargo tank type, construction and material 2- dynamic stability? What do u understand by reserve dynamic stability when d ship z rolling? 3- manuals under ism code", "family": "Cargo Ops - Gas Carriers", "subtopic": "Cargo Tank Construction", "tid": "KOL-2019-12-0373", "tray": "review", "candidates": [ { "answer_id": "IGC-GAS-006", "score": 0.6846659779548645, "sibling_score": 0.6846659779548645, "answer_score": null, "sibling_qid": "KOL-2019-01-0254-Q002", "sibling_text": "fire fighting system on lpg deck 3intact and static stability curves", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Deck fixed dry chemical powder (DCP) fire-extinguishing system", "cross_family": false }, { "answer_id": "STAB-GZ-P04-001", "score": 0.6729313731193542, "sibling_score": 0.6729313731193542, "answer_score": null, "sibling_qid": "KOL-2017-05-0089-Q003", "sibling_text": "reserve dynamic stability for rolling", "sibling_family": "", "via": "sibling", "answer_title": "Dynamic stability — the area under the GZ curve", "cross_family": false }, { "answer_id": "HKC-IHM-B-002", "score": 0.6499761939048767, "sibling_score": 0.6499761939048767, "answer_score": null, "sibling_qid": "MUM-2025-08-0380-Q001", "sibling_text": "what is is reserve buoyancy static stability and and dynamic stability what fixed fire fighting for for cargo hold solas reg for survival craft enhanced survey program ihm and types of ihm", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What surveys, certificates and documents go with the IHM and the Hong Kong Convention?", "cross_family": true } ] }, { "qid": "KOL-2019-12-0373-Q010", "text": "damage stability criteria", "family": "SOLAS", "subtopic": "Damage Stability", "tid": "KOL-2019-12-0373", "tray": "review", "candidates": [ { "answer_id": "DAM-STAB-P03-002", "score": 0.8116647601127625, "sibling_score": 0.8116647601127625, "answer_score": null, "sibling_qid": "KOC-2024-12-0485-Q011", "sibling_text": "damage stability criteria", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "General cargo-ship damage stability criteria and requirements", "cross_family": false }, { "answer_id": "DS-049-P02-001", "score": 0.808290421962738, "sibling_score": 0.808290421962738, "answer_score": 0.49850710630416867, "sibling_qid": "KOC-2024-09-0405-Q008", "sibling_text": "damage stability intact stability criteria", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Difference between intact stability (static / dynamic) and damage stability criteria", "cross_family": false }, { "answer_id": "DAM-STAB-P03-001", "score": 0.7937546372413635, "sibling_score": 0.7937546372413635, "answer_score": 0.5034122377634048, "sibling_qid": "KOL-2018-05-0175-Q001", "sibling_text": "intact stability damage stability criteria", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Intact, static, dynamic and damage stability: difference and criteria", "cross_family": false } ] }, { "qid": "KOL-2019-12-0376-Q003", "text": "Angle of lurch", "family": "", "subtopic": "Angle of Loll / Stiff & Tender", "tid": "KOL-2019-12-0376", "tray": "new", "candidates": [ { "answer_id": "LOLL-P02-005", "score": 0.6325547695159912, "sibling_score": 0.6325547695159912, "answer_score": 0.4317912995815277, "sibling_qid": "KOL-2017-01-0042-Q001", "sibling_text": "angle if loll angle of lorch at wt angle it occure how much gm gz at angle of lurch", "sibling_family": "", "via": "sibling", "answer_title": "5. Loll among the limits — vanishing stability, lurch, downflooding, contraflexure", "cross_family": false }, { "answer_id": "LOLL-CORE-P01-001", "score": 0.6079779863357544, "sibling_score": 0.6079779863357544, "answer_score": 0.4535324156284332, "sibling_qid": "CHE-2025-08-0019-Q009", "sibling_text": "angle of loll", "sibling_family": "", "via": "sibling", "answer_title": "What is angle of loll?", "cross_family": false }, { "answer_id": "LOLL-P02-002", "score": 0.4560971260070801, "sibling_score": null, "answer_score": 0.4560971260070801, "sibling_qid": "", "sibling_text": "1 correcting angle of loll the ballasting sequence loll is a small negative gm g above m unstable upright settles where gz returns to zero with the curve rising calculation hook for a wall sided estimate tan of the loll angle equals the square root of minus 2 gm over bm using the negative upright gm", "sibling_family": "", "via": "answer_title", "answer_title": "1. Correcting angle of loll — the ballasting sequence", "cross_family": false } ] }, { "qid": "KOL-2019-12-1503-Q004", "text": "austenite and ferrite material..in austenite carbon is in which form...", "family": "NDT & Material Testing", "subtopic": "Iron-Carbon Diagram", "tid": "KOL-2019-12-1503", "tray": "new", "candidates": [ { "answer_id": "ICD-065-001", "score": 0.6174343228340149, "sibling_score": 0.6174343228340149, "answer_score": 0.4288201123476028, "sibling_qid": "MUM-2026-06-3356-Q001", "sibling_text": "iron carbide diagram draw percentage of carbon in ferrite austenite perlite etc etc", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Draw and explain the iron-carbon diagram in full detail", "cross_family": false }, { "answer_id": "ICD-065-003", "score": 0.5574300289154053, "sibling_score": 0.5574300289154053, "answer_score": 0.419994705915451, "sibling_qid": "MUM-2026-06-3396-Q003", "sibling_text": "ferrite cementite", "sibling_family": "Materials & Metallurgy", "via": "sibling", "answer_title": "What percentage of carbon is in cementite?", "cross_family": true }, { "answer_id": "SGB-212-003", "score": 0.5560436844825745, "sibling_score": 0.5560436844825745, "answer_score": 0.42775875329971313, "sibling_qid": "KOL-2024-05-4040-Q003", "sibling_text": "type of stainless steel tell me about austenite", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Types of stainless steel (austenitic) and onboard use", "cross_family": false } ] }, { "qid": "KOL-2019-12-1505-Q005", "text": "Checks on all main engine bearings.", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "", "tid": "KOL-2019-12-1505", "tray": "review", "candidates": [ { "answer_id": "MAIN-BRG-D-004", "score": 0.82477205991745, "sibling_score": 0.82477205991745, "answer_score": null, "sibling_qid": "KOC-2025-05-2063-Q011", "sibling_text": "checks on main bearing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main bearing overhaul — jack-up, clearance check and tightening", "cross_family": false }, { "answer_id": "BEB-B-001", "score": 0.8204736113548279, "sibling_score": 0.8204736113548279, "answer_score": null, "sibling_qid": "MUM-2025-08-2826-Q008", "sibling_text": "main engine bottom end bearing checks", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bottom End Bearing — Survey & Inspection", "cross_family": false }, { "answer_id": "MAIN-BRG-A-001", "score": 0.7765682935714722, "sibling_score": 0.7765682935714722, "answer_score": 0.5552813291549682, "sibling_qid": "KOL-2021-04-3392-Q002", "sibling_text": "main engine main bearing survey", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How is a main bearing surveyed, inspected or condition-monitored?", "cross_family": false } ] }, { "qid": "KOL-2019-12-1508-Q002", "text": "RO system . Diagram. Chemical used.", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "KOL-2019-12-1508", "tray": "new", "candidates": [ { "answer_id": "JCW-SYS-004", "score": 0.5418094992637634, "sibling_score": 0.5418094992637634, "answer_score": 0.4379514276981354, "sibling_qid": "KOC-2022-05-1786-Q007", "sibling_text": "why jacket water treatment is done what all chemicals used in rocor nb what is n and b purpose of both", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Why jacket water is treated - chemicals used, what Rocor NB stands for, the nitrite level maintained, and removing scale", "cross_family": false }, { "answer_id": "FWG-RO-006", "score": 0.5156092643737793, "sibling_score": 0.5156092643737793, "answer_score": 0.41366302967071533, "sibling_qid": "MUM-2026-03-2952-Q017", "sibling_text": "what chemical u dose before ro", "sibling_family": "Fresh Water & Domestic Systems", "via": "sibling", "answer_title": "Explain reverse osmosis — the principle and flow, pre- and post-treatment, and what chemical is dosed before the RO.", "cross_family": true }, { "answer_id": "BW-TEST-D-001", "score": 0.49993354082107544, "sibling_score": 0.49993354082107544, "answer_score": null, "sibling_qid": "MUM-2026-07-3721-Q005", "sibling_text": "boiler water chemicals", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Boiler-water treatment — why, and the chemicals used", "cross_family": true } ] }, { "qid": "KOL-2019-12-1879-Q003", "text": "IHL safety valve in boiler... What is COD... floating liner..", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2019-12-1879", "tray": "new", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.5677390098571777, "sibling_score": 0.5677390098571777, "answer_score": null, "sibling_qid": "MUM-2026-07-3737-Q004", "sibling_text": "boiler type safety valve type lift of safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "BLR-SURV-P02-008", "score": 0.5336560606956482, "sibling_score": 0.5336560606956482, "answer_score": null, "sibling_qid": "MUM-2026-05-3078-Q008", "sibling_text": "safeties on boiler", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.5306003093719482, "sibling_score": 0.5306003093719482, "answer_score": null, "sibling_qid": "MUM-2026-05-3281-Q004", "sibling_text": "setting of boiler safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false } ] }, { "qid": "KOL-2019-12-1881-Q003", "text": "Improved high lift safety valve diagram, working, how to adjust lip clearance", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2019-12-1881", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.7447105050086975, "sibling_score": 0.7447105050086975, "answer_score": null, "sibling_qid": "KOC-2026-09-2173-Q003", "sibling_text": "improved high lift safety valve diagram", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ECON-EGB-004", "score": 0.6316888928413391, "sibling_score": 0.6316888928413391, "answer_score": 0.477955225110054, "sibling_qid": "CHE-2026-08-3884-Q001", "sibling_text": "safety valve adjusting procedure and cross", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Safety-valve setting after overhaul & why set higher than the boiler", "cross_family": false }, { "answer_id": "MR-DS-PV-B-006", "score": 0.6287573575973511, "sibling_score": 0.6287573575973511, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q005", "sibling_text": "full bore safety valve diagram", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "6. Deck isolating valve, deck relief/safety devices, and cargo-tank pressure", "cross_family": false } ] }, { "qid": "KOL-2019-12-2351-Q002", "text": "Dol starter control ckt, how contactor operates", "family": "Electrical - Motors & Starters", "subtopic": "DOL Starter", "tid": "KOL-2019-12-2351", "tray": "review", "candidates": [ { "answer_id": "STARTER-DEC-B-003", "score": 0.6778163313865662, "sibling_score": 0.6778163313865662, "answer_score": 0.5468286067247391, "sibling_qid": "KOC-2025-03-1520-Q001", "sibling_text": "ext sreekumar int senthil 1 dol starter 2 difference between relay and contactor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "DOL starter — use, current, range and limits", "cross_family": false }, { "answer_id": "SDST-A-001", "score": 0.6480986475944519, "sibling_score": 0.6480986475944519, "answer_score": null, "sibling_qid": "KOC-2021-09-1146-Q001", "sibling_text": "star delta starter draw and explain a special attention to star contactors", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false }, { "answer_id": "STR-DEC-A-001", "score": 0.6402385234832764, "sibling_score": 0.6402385234832764, "answer_score": null, "sibling_qid": "KOC-2023-07-1271-Q005", "sibling_text": "types of starters for ac motor how s starting current controlled in dol", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false } ] }, { "qid": "KOL-2019-12-2352-Q001", "text": "brushless alternator and type ofexciter.what happens if 1 diode fails?", "family": "Electrical - Generator & Alternator", "subtopic": "Brushless Alternator", "tid": "KOL-2019-12-2352", "tray": "review", "candidates": [ { "answer_id": "DIODESO-002", "score": 0.6842175126075745, "sibling_score": 0.6842175126075745, "answer_score": 0.5480897843837738, "sibling_qid": "KOL-2016-08-2063-Q001", "sibling_text": "brushless excitation problems diode shrt ckt", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Explain the rotating diodes in a brushless alternator and the problems that arise in the brushless excitation system, including diode short circuit", "cross_family": false }, { "answer_id": "DIODESO-001", "score": 0.6458152532577515, "sibling_score": 0.6458152532577515, "answer_score": 0.5883112847805023, "sibling_qid": "NOI-2026-09-0020-Q007", "sibling_text": "what will happen to running alternator if one diode get open if diode get short", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Two alternators in parallel — one rotating rectifier diode goes short circuit. What happens, what if it goes open instead, and how do you know which it is?", "cross_family": false }, { "answer_id": "BL-ALT-C-002", "score": 0.6443341374397278, "sibling_score": 0.6443341374397278, "answer_score": 0.4678449809551239, "sibling_qid": "KOL-2025-08-2828-Q006", "sibling_text": "how do u know it is brushless excitation both fail", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "How to identify onboard that an alternator is brushless", "cross_family": false } ] }, { "qid": "KOL-2019-12-2355-Q001", "text": "Brushless alternator diagram, Avr location, function,how to know it's brushless alternator? Electrical advantages of brushless alternator.", "family": "Electrical - Generator & Alternator", "subtopic": "Brushless Alternator", "tid": "KOL-2019-12-2355", "tray": "review", "candidates": [ { "answer_id": "BL-ALT-C-001", "score": 0.8347391486167908, "sibling_score": 0.8347391486167908, "answer_score": null, "sibling_qid": "KOL-2021-03-2432-Q002", "sibling_text": "brushless alternator only tell electrical advantage", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Electrical advantages of brushless excitation over brushed / static", "cross_family": false }, { "answer_id": "BRUSHALT-A-001", "score": 0.8072007298469543, "sibling_score": 0.8072007298469543, "answer_score": 0.6046232521533966, "sibling_qid": "MUM-2026-02-1928-Q001", "sibling_text": "brushless alternator explain", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01 · Working principle of the brushless alternator / brushless excitation systemHigh", "cross_family": false }, { "answer_id": "AVR-EXC-G-002", "score": 0.7883984446525574, "sibling_score": 0.7883984446525574, "answer_score": null, "sibling_qid": "MUM-2025-05-1525-Q001", "sibling_text": "uti tape working and full form brushless alternator component why avr", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Brushless excitation: how DC reaches the rotor", "cross_family": false } ] }, { "qid": "KOL-2019-12-2355-Q002", "text": "Intrinsically safe circuit?how zener barrier works?", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOL-2019-12-2355", "tray": "review", "candidates": [ { "answer_id": "HAZ-EX-B-001", "score": 0.7345052361488342, "sibling_score": 0.7345052361488342, "answer_score": 0.4325151860713959, "sibling_qid": "CHE-2026-03-0358-Q005", "sibling_text": "zener barrier working in intrinsically safe", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Intrinsically safe (Ex i) equipment — what it is, how it works, where it is used, how you identify it", "cross_family": false }, { "answer_id": "FSF-BF073-004", "score": 0.7247153520584106, "sibling_score": 0.7247153520584106, "answer_score": null, "sibling_qid": "CHE-2026-03-0359-Q001", "sibling_text": "zener diode zener barrier working in intrinsically safe", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a magnetic fail safe?", "cross_family": false }, { "answer_id": "PR-SAFE-A-004", "score": 0.6160762310028076, "sibling_score": 0.6160762310028076, "answer_score": null, "sibling_qid": "KOL-2016-12-0035-Q004", "sibling_text": "pump room safety intrinsically safe means what i said about zener barrier basically explained regarding the pp room circuit with low volt and curret", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Pump-room electrical safety, lighting and portable equipment", "cross_family": false } ] }, { "qid": "KOL-2019-12-2357-Q003", "text": "D-O-L starter draw nd explain.", "family": "Electrical - Motors & Starters", "subtopic": "DOL Starter", "tid": "KOL-2019-12-2357", "tray": "review", "candidates": [ { "answer_id": "STR-DEC-A-001", "score": 0.7696906924247742, "sibling_score": 0.7696906924247742, "answer_score": null, "sibling_qid": "KOC-2024-10-1409-Q003", "sibling_text": "draw dol starter and explain", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "SDST-A-001", "score": 0.6944019794464111, "sibling_score": 0.6944019794464111, "answer_score": 0.34646581411361693, "sibling_qid": "KOC-2025-01-1459-Q002", "sibling_text": "start delta starter draw explain", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false }, { "answer_id": "STARTER-DEC-B-002", "score": 0.6487345099449158, "sibling_score": 0.6487345099449158, "answer_score": null, "sibling_qid": "KOL-2026-04-2984-Q002", "sibling_text": "explain dol starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Why a starter is needed & reducing starting current", "cross_family": false } ] }, { "qid": "KOL-2019-12-3299-Q001", "text": "Ae crankcase inspection n cross qts", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE CRANKCASE", "tid": "KOL-2019-12-3299", "tray": "review", "candidates": [ { "answer_id": "CRKC-INSP-001", "score": 0.722293496131897, "sibling_score": 0.722293496131897, "answer_score": null, "sibling_qid": "MUM-2026-09-3876-Q005", "sibling_text": "crank case inspection of ae", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Routine main-engine crankcase inspection — checks as 2/E", "cross_family": false }, { "answer_id": "AECR-651-001", "score": 0.6758257746696472, "sibling_score": 0.6758257746696472, "answer_score": null, "sibling_qid": "MUM-2026-05-3300-Q004", "sibling_text": "connecting rod inspection and cross ques", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "What checks do you carry out on the connecting rod of an AE / DG — inspection, overhaul checks and the trueness check?", "cross_family": false }, { "answer_id": "CRKC-INSP-002", "score": 0.6363773941993713, "sibling_score": 0.6363773941993713, "answer_score": null, "sibling_qid": "KOL-2022-03-1670-Q006", "sibling_text": "quick crankcase inspection", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Quick crankcase inspection after rough weather or grounding (short port stay)", "cross_family": true } ] }, { "qid": "KOL-2019-12-3302-Q001", "text": "Boiler safety valve setting", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2019-12-3302", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-001", "score": 0.864810049533844, "sibling_score": 0.864810049533844, "answer_score": null, "sibling_qid": "CHE-2026-04-0500-Q005", "sibling_text": "boiler safety valve setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.823114275932312, "sibling_score": 0.823114275932312, "answer_score": null, "sibling_qid": "MUM-2026-03-2935-Q013", "sibling_text": "boiler safety valve setting in presence of surveyor after survey", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.8128049373626709, "sibling_score": 0.8128049373626709, "answer_score": null, "sibling_qid": "KOC-2026-05-0034-Q010", "sibling_text": "boiler safety valve types and how safety valve is set complete procedures", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOL-2019-12-3976-Q007", "text": "when to carry out additional survey", "family": "Surveys - Statutory", "subtopic": "Defects on Board / Class Action", "tid": "KOL-2019-12-3976", "tray": "review", "candidates": [ { "answer_id": "SURV-GEN-004", "score": 0.6706589460372925, "sibling_score": 0.6706589460372925, "answer_score": 0.5153508424758911, "sibling_qid": "KOL-2020-09-0426-Q004", "sibling_text": "additinal survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Additional / non-periodical survey", "cross_family": false }, { "answer_id": "CSAS-SURV-004", "score": 0.6539941430091858, "sibling_score": 0.6539941430091858, "answer_score": 0.3672333464026451, "sibling_qid": "KOC-2025-03-0571-Q009", "sibling_text": "why additional survey is carried out", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Annual vs intermediate vs periodical vs additional survey", "cross_family": true }, { "answer_id": "ISM-AUDIT-P01-002", "score": 0.6389306783676147, "sibling_score": 0.6389306783676147, "answer_score": null, "sibling_qid": "KOL-2024-01-0806-Q002", "sibling_text": "as per ism when additional survey is carried out", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM/SMS audits and verifications — types, who conducts them, intervals and validity", "cross_family": true } ] }, { "qid": "KOL-2020-01-0377-Q001", "text": "Types of rudder . And their differences.", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2020-01-0377", "tray": "review", "candidates": [ { "answer_id": "SPR-STERN-006", "score": 0.6984743475914001, "sibling_score": 0.6984743475914001, "answer_score": null, "sibling_qid": "MUM-2026-09-3951-Q002", "sibling_text": "types of rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Propeller types & special propulsors", "cross_family": false }, { "answer_id": "TRS-002", "score": 0.618482232093811, "sibling_score": 0.618482232093811, "answer_score": 0.4548320472240448, "sibling_qid": "KOC-2026-02-1103-Q008", "sibling_text": "how rudder stock and carrier bearing is attached told 2 half fitted bolts x does bearing turn with rudder i told yes then he told that there are 2 types one turn with rudder other dont turn with rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.6149408221244812, "sibling_score": 0.6149408221244812, "answer_score": null, "sibling_qid": "CHE-2026-05-0635-Q004", "sibling_text": "how wil you identify the rudder type jus looking at diagram or jus by looking at it", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false } ] }, { "qid": "KOL-2020-01-0377-Q002", "text": "Rudder of your ship draw it .", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2020-01-0377", "tray": "review", "candidates": [ { "answer_id": "DUS-P5-03", "score": 0.7180647850036621, "sibling_score": 0.7180647850036621, "answer_score": 0.4685350239276886, "sibling_qid": "KOC-2024-12-2058-Q002", "sibling_text": "draw aft portion of the ship without propeller and rudder in it show the rudder axis which pass through the structure", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Stern frame construction, cross-section and rudder-axis sketch", "cross_family": true }, { "answer_id": "RUD-DROP-001", "score": 0.6850351095199585, "sibling_score": 0.6850351095199585, "answer_score": null, "sibling_qid": "MUM-2026-05-3150-Q003", "sibling_text": "rudder internal painting", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "HULL-PAINT-002", "score": 0.6850351095199585, "sibling_score": 0.6850351095199585, "answer_score": null, "sibling_qid": "CHE-2026-02-0110-Q012", "sibling_text": "rudder internal painting", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Types of hull coating, the paint scheme by section, and why each is used", "cross_family": false } ] }, { "qid": "KOL-2020-01-0377-Q005", "text": "How fuel oil tank cleaning is carried out.", "family": "Fuel Oil System", "subtopic": "Settling Tank Survey / Tank Preparation", "tid": "KOL-2020-01-0377", "tray": "new", "candidates": [ { "answer_id": "TCM-374-006", "score": 0.6205838918685913, "sibling_score": 0.6205838918685913, "answer_score": null, "sibling_qid": "MUM-2026-06-3616-Q010", "sibling_text": "tank cleaning procedure of your ship", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Cargo stripping and tank residues (bellmouth and discharge limits)", "cross_family": true }, { "answer_id": "ESE-P01-004", "score": 0.6182606220245361, "sibling_score": 0.6182606220245361, "answer_score": 0.5182921379804611, "sibling_qid": "KOC-2025-03-1508-Q009", "sibling_text": "some other questions in between can t remember internal we need to clean fuel oil settling tank what will be the full procedure including the securing of the residue and what all marks will do in records explain full enclosed space permit just brief full enclosed space procedures and gas checks mention writing in orb with code gas values what type of gas meter", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "Fuel-oil, settling, bunker or double-bottom tank entry and inspection", "cross_family": true }, { "answer_id": "OILRES-DISCH-TOPIC467-FINAL-003", "score": 0.6011794805526733, "sibling_score": 0.6011794805526733, "answer_score": 0.549492821097374, "sibling_qid": "KOL-2021-07-3433-Q005", "sibling_text": "asked by choudhary sir you joined ship and found bottom floor tank top and bilges oily company has asked you to clean tell me step by step action", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Joined the ship, tank top, floor and bilges are oily — step-by-step cleaning as Second Engineer", "cross_family": true } ] }, { "qid": "KOL-2020-01-0379-Q001", "text": "Type of ship done, i said bulk carrier and tanker, he asked u had copt on that, i said i have done both with copt as well as framo. Now the action starts.", "family": "Cargo Ops - Tankers", "subtopic": "Cargo Pump (Framo / Eductor)", "tid": "KOL-2020-01-0379", "tray": "review", "candidates": [ { "answer_id": "TKR-TYPE-001", "score": 0.7164627313613892, "sibling_score": 0.7164627313613892, "answer_score": null, "sibling_qid": "CHE-2025-10-0516-Q002", "sibling_text": "type of ships sailed i told product and crude tanker he asked constructional difference between them", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "1. Crude oil tanker vs product tanker / carrier — construction and cargo-area differences", "cross_family": false }, { "answer_id": "CPFE-583-012", "score": 0.6815676689147949, "sibling_score": 0.6815676689147949, "answer_score": null, "sibling_qid": "KOL-2025-03-3764-Q001", "sibling_text": "type of ship sailed how to purge framo pump on cargo tank", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Seal arrangement, cofferdam, and how leakage is detected", "cross_family": false }, { "answer_id": "TKR-TYPE-002", "score": 0.6804888844490051, "sibling_score": 0.6804888844490051, "answer_score": null, "sibling_qid": "KOL-2025-12-1147-Q001", "sibling_text": "type of ship sailed i told chemical tanker clearance between side shell and bottom shell", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "2. Chemical tanker IMO Types 1 / 2 / 3, cargo categories and the IBC Code", "cross_family": false } ] }, { "qid": "KOL-2020-01-0381-Q004", "text": "muster list", "family": "ISM Code", "subtopic": "SMS / Functional Requirements", "tid": "KOL-2020-01-0381", "tray": "review", "candidates": [ { "answer_id": "ISM-ELEM-003", "score": 0.6547757387161255, "sibling_score": 0.6547757387161255, "answer_score": null, "sibling_qid": "MUM-2026-09-3889-Q004", "sibling_text": "muster list which chapter and it s content", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": false }, { "answer_id": "HKC-IHM-B-001", "score": 0.5114794373512268, "sibling_score": 0.5114794373512268, "answer_score": null, "sibling_qid": "MUM-2025-12-0627-Q006", "sibling_text": "ihm lists", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is the IHM — its parts, categories and contents?", "cross_family": true }, { "answer_id": "ISM-2E-C-001", "score": 0.476046621799469, "sibling_score": 0.476046621799469, "answer_score": null, "sibling_qid": "KOC-2025-01-0505-Q003", "sibling_text": "ism doc list", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM audit / survey preparation as Second Engineer — beyond the paperwork", "cross_family": false } ] }, { "qid": "KOL-2020-01-0382-Q005", "text": "As a 2nd Engineer how you will apply onboard MLC 2006?", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOL-2020-01-0382", "tray": "new", "candidates": [ { "answer_id": "AVI-SCOPE-004", "score": 0.5089049339294434, "sibling_score": 0.5089049339294434, "answer_score": null, "sibling_qid": "MUM-2024-11-0220-Q005", "sibling_text": "as a 2nd engineer how will you incorporate annexe 6 onboard", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Explain MARPOL Annex VI: purpose, scope, chapters/regulations and main onboard requirements.", "cross_family": true }, { "answer_id": "OWS-15PPM-001", "score": 0.4889523983001709, "sibling_score": 0.4889523983001709, "answer_score": null, "sibling_qid": "MUM-2025-08-0423-Q006", "sibling_text": "psc onboard wants to try out ows how you will do as 2nd engineer", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": true }, { "answer_id": "SOX-LIMIT-006", "score": 0.4540223479270935, "sibling_score": 0.4540223479270935, "answer_score": null, "sibling_qid": "MUM-2026-02-0737-Q004", "sibling_text": "as a 2nd enginner what entries you will make in which documents so confirm annex 6 is fullfill onboard", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Proving Annex VI sulphur compliance — records and PSC evidence", "cross_family": true } ] }, { "qid": "KOL-2020-01-1511-Q005", "text": "How to adjust bumping clearance in tandem 3 stage compressor. ( Shims not acceptable)", "family": "Air Compressor", "subtopic": "Reciprocating Compressor", "tid": "KOL-2020-01-1511", "tray": "review", "candidates": [ { "answer_id": "MAC-353-008", "score": 0.6584131121635437, "sibling_score": 0.6584131121635437, "answer_score": 0.4333430856466293, "sibling_qid": "KOL-2026-09-4310-Q004", "sibling_text": "how to adjust the bumping clearance in air compressor", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Taking bumping clearance without opening the cylinder (lead-ball method)", "cross_family": false }, { "answer_id": "AC-VE-001", "score": 0.6395363807678223, "sibling_score": 0.6395363807678223, "answer_score": null, "sibling_qid": "KOL-2023-02-1725-Q007", "sibling_text": "volumetric efficiency of compressor gone done bumping clearance adjustment", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Volumetric efficiency: define it, and if it drops how do you improve it (with bumping clearance)?", "cross_family": false }, { "answer_id": "RUN-CLR-002", "score": 0.6279498934745789, "sibling_score": 0.6279498934745789, "answer_score": 0.42966118454933167, "sibling_qid": "MUM-2026-06-3501-Q002", "sibling_text": "bumping clearance how to adjust", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Bumping clearance — what it is, why it matters, effects, and how it is adjusted", "cross_family": false } ] }, { "qid": "KOL-2020-01-1513-Q003", "text": "MAC why plate type valve,not spring type. Refer compressor valve operation and type.", "family": "Air Compressor", "subtopic": "Reciprocating Compressor", "tid": "KOL-2020-01-1513", "tray": "new", "candidates": [ { "answer_id": "MAC-598-001", "score": 0.6404877305030823, "sibling_score": 0.6404877305030823, "answer_score": 0.49045508503913876, "sibling_qid": "KOC-2026-08-2160-Q004", "sibling_text": "mac compressor valve parts", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "The main air compressor valve — arrangement, parts, and why the construction is so complex", "cross_family": false }, { "answer_id": "MAC-353-003", "score": 0.5842167735099792, "sibling_score": 0.5842167735099792, "answer_score": 0.44313926398754117, "sibling_qid": "KOC-2025-04-1910-Q010", "sibling_text": "what all jobs done on compressor how many discs in compressor suction valve draw a suction valve", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Main air compressor suction / delivery valve inspection and overhaul", "cross_family": false }, { "answer_id": "ACSS-003", "score": 0.5493291020393372, "sibling_score": 0.5493291020393372, "answer_score": null, "sibling_qid": "KOC-2025-11-1970-Q001", "sibling_text": "main air compressor working advntages of multistages what all are the safeties provided on compressor reasons for lifting of safety valves", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Multistage working, cooling, stage arrangement and stage faults", "cross_family": false } ] }, { "qid": "KOL-2020-01-1883-Q003", "text": "How is crankshaft’s designed to take care of fatigue stress?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft Material", "tid": "KOL-2020-01-1883", "tray": "review", "candidates": [ { "answer_id": "CFF-P02-005", "score": 0.6605534553527832, "sibling_score": 0.6605534553527832, "answer_score": 0.5138769268989563, "sibling_qid": "KOL-2018-10-1429-Q005", "sibling_text": "what are the measures taken to tackle fatigue failure of crankshaft what measures are taken by engine maker to tackle fatigue", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Reducing and preventing fatigue failure", "cross_family": true }, { "answer_id": "CRK-DEFL-001", "score": 0.6539987921714783, "sibling_score": 0.6539987921714783, "answer_score": null, "sibling_qid": "CHE-2026-05-0648-Q005", "sibling_text": "stresses on crank shaft not accepting any stress", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Purpose, timing and scope of crankshaft deflection", "cross_family": false }, { "answer_id": "HT-A-001", "score": 0.6328608393669128, "sibling_score": 0.6328608393669128, "answer_score": null, "sibling_qid": "MUM-2026-05-3283-Q006", "sibling_text": "crankshaft material and heat treatment", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Heat treatment: what it is, the main methods, and why it is done", "cross_family": false } ] }, { "qid": "KOL-2020-01-2365-Q003", "text": "ex(e)", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOL-2020-01-2365", "tray": "review", "candidates": [ { "answer_id": "EXD-EXI-A-002", "score": 0.7258025407791138, "sibling_score": 0.7258025407791138, "answer_score": null, "sibling_qid": "KOC-2022-09-1794-Q002", "sibling_text": "exd exe", "sibling_family": "", "via": "sibling", "answer_title": "Ex d (flameproof / explosion-proof) — construction, shipboard applications and maintenance", "cross_family": false }, { "answer_id": "EEXI-001", "score": 0.712505578994751, "sibling_score": 0.712505578994751, "answer_score": null, "sibling_qid": "KOL-2025-07-0994-Q004", "sibling_text": "eexi", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is EEXI? Explain it in full — formula, unit, application, and what an existing ship is", "cross_family": false }, { "answer_id": "EEDI-C-003", "score": 0.45077903270721437, "sibling_score": null, "answer_score": 0.45077903270721437, "sibling_qid": "", "sibling_text": "how eedi sits against eexi cii and seemp", "sibling_family": "", "via": "answer_title", "answer_title": "How EEDI sits against EEXI, CII and SEEMP", "cross_family": false } ] }, { "qid": "KOL-2020-01-2365-Q004", "text": "hazardous areas on ship", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOL-2020-01-2365", "tray": "new", "candidates": [ { "answer_id": "RISK-RA-D-005", "score": 0.6463801264762878, "sibling_score": 0.6463801264762878, "answer_score": 0.5178029775619507, "sibling_qid": "KOL-2022-09-0683-Q003", "sibling_text": "ship is at ship repairing yard tell me the area where chances of fire i only told 2 area he said there are number of places where chances of fire and as a 2nd eng you have to check ensure the safety", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "TCM-374-005", "score": 0.6437814235687256, "sibling_score": 0.6437814235687256, "answer_score": null, "sibling_qid": "KOC-2026-04-0912-Q020", "sibling_text": "hazard zone in chemical tanker", "sibling_family": "", "via": "sibling", "answer_title": "Gas-freeing a tanker after discharge or before dry dock (why through the IG system)", "cross_family": false }, { "answer_id": "RA-MGMT-A-001", "score": 0.6153964996337891, "sibling_score": 0.6153964996337891, "answer_score": null, "sibling_qid": "KOL-2023-06-0749-Q005", "sibling_text": "during major repairs job on ship what are the risks of fire what poses fire hazards", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "What is risk, what is hazard, and what is risk assessment?", "cross_family": false } ] }, { "qid": "KOL-2020-01-3312-Q004", "text": "Metal ballasting use onboard ?", "family": "Workshop & Welding", "subtopic": "Metal Locking", "tid": "KOL-2020-01-3312", "tray": "new", "candidates": [ { "answer_id": "SGB-212-006", "score": 0.527101993560791, "sibling_score": 0.527101993560791, "answer_score": null, "sibling_qid": "KOL-2026-01-2037-Q001", "sibling_text": "bronze used onboard", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Bronze — composition and onboard use", "cross_family": true }, { "answer_id": "WTGS-325-006", "score": 0.5265258550643921, "sibling_score": 0.5265258550643921, "answer_score": null, "sibling_qid": "KOL-2022-01-3509-Q003", "sibling_text": "use of surface plate onboard", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Surface plate, jigs and fixtures onboard", "cross_family": false }, { "answer_id": "DBTB-A-002", "score": 0.5046700239181519, "sibling_score": 0.5046700239181519, "answer_score": 0.3760357767343521, "sibling_qid": "KOL-2025-01-0911-Q002", "sibling_text": "ballast tank construction", "sibling_family": "", "via": "sibling", "answer_title": "Double-bottom tanks: purpose, advantages, disadvantages and stability effect", "cross_family": false } ] }, { "qid": "KOL-2020-01-3314-Q002", "text": "Generator load not increasing more than 50%, exhaust temp goes high", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Decarb / Balancing / High Exhaust Temperature", "tid": "KOL-2020-01-3314", "tray": "review", "candidates": [ { "answer_id": "AE-HOT-BLOW-004", "score": 0.6960812211036682, "sibling_score": 0.6960812211036682, "answer_score": 0.557733616232872, "sibling_qid": "MUM-2025-12-2879-Q006", "sibling_text": "rating of the ae running at low load but exhaust temp are high reason", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Auxiliary engine at low load but exhaust temperatures high — reasons", "cross_family": false }, { "answer_id": "FCL-P03-001", "score": 0.6509492993354797, "sibling_score": 0.6509492993354797, "answer_score": null, "sibling_qid": "KOL-2020-11-3363-Q002", "sibling_text": "ae not taking load more den 50 exhaust temp highest tell him the basic fundamentals reason wants to hear timing of fuel injection", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "AE / auxiliary-engine fuel pump timing check and adjustment", "cross_family": true }, { "answer_id": "LO-CLR-003", "score": 0.6168768405914307, "sibling_score": 0.6168768405914307, "answer_score": null, "sibling_qid": "KOL-2021-07-3416-Q002", "sibling_text": "generator lo temperature rises reason", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What makes a generator's lube-oil temperature rise, including cooler problems?", "cross_family": true } ] }, { "qid": "KOL-2020-01-3314-Q003", "text": "Aluminium welding ?", "family": "Workshop & Welding", "subtopic": "Welding / NDT / Materials", "tid": "KOL-2020-01-3314", "tray": "review", "candidates": [ { "answer_id": "WELD-B-001", "score": 0.7980725169181824, "sibling_score": 0.7980725169181824, "answer_score": 0.5605319380760193, "sibling_qid": "MUM-2021-06-2129-Q001", "sibling_text": "aluminium welding difficulties and procedures", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding & crack-repair of aluminium and cast iron, including metal stitching", "cross_family": false }, { "answer_id": "WELD-B-004", "score": 0.7650160193443298, "sibling_score": 0.7650160193443298, "answer_score": 0.5530084431171417, "sibling_qid": "KOL-2025-07-3831-Q003", "sibling_text": "aluminium welding with steel", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Joining dissimilar metals — aluminium to steel, and explosive welding", "cross_family": false }, { "answer_id": "WELD-PATM-005", "score": 0.7542100548744202, "sibling_score": 0.7542100548744202, "answer_score": null, "sibling_qid": "KOL-2021-12-3501-Q003", "sibling_text": "aluminium welding tig welding and mig welding difference", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "TIG vs MIG – differences, uses, advantages", "cross_family": false } ] }, { "qid": "KOL-2020-01-3318-Q005", "text": "Q4 boliler safety Valve inspection after overhaul. All the clearances.", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2020-01-3318", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P01-001", "score": 0.713218629360199, "sibling_score": 0.713218629360199, "answer_score": null, "sibling_qid": "KOL-2026-01-3900-Q005", "sibling_text": "check on safety valve during overhaul", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.7039961218833923, "sibling_score": 0.7039961218833923, "answer_score": null, "sibling_qid": "KOL-2021-08-1614-Q006", "sibling_text": "boiler survey interval types of safety valves improved high lift safety valve in detail", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACRV-005", "score": 0.6828723549842834, "sibling_score": 0.6828723549842834, "answer_score": null, "sibling_qid": "MUM-2026-06-3549-Q005", "sibling_text": "boiler safety valve maximum questions", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": false } ] }, { "qid": "KOL-2020-01-3978-Q002", "text": "Constructional difference between product and crude oil carrier.", "family": "Tanker Construction", "subtopic": "Oil tanker / product tanker construction", "tid": "KOL-2020-01-3978", "tray": "review", "candidates": [ { "answer_id": "TKR-TYPE-001", "score": 0.7338912487030029, "sibling_score": 0.7338912487030029, "answer_score": 0.6086223602294921, "sibling_qid": "KOL-2018-07-0198-Q001", "sibling_text": "constructional difference between product and crude oil tanker", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "1. Crude oil tanker vs product tanker / carrier — construction and cargo-area differences", "cross_family": true }, { "answer_id": "COT-02", "score": 0.541673195362091, "sibling_score": null, "answer_score": 0.541673195362091, "sibling_qid": "", "sibling_text": "oil tanker versus chemical tanker construction crude product tanker integral cargo tanks with longitudinal structure common main pump room arrangements are design dependent not universal chemical tanker smooth cleanable compatible tank surfaces and strong segregation tank type cofferdams voids pumps and vents follow the ibc cargo requirements and approved arrangement", "sibling_family": "", "via": "answer_title", "answer_title": "Oil tanker versus chemical tanker construction", "cross_family": false }, { "answer_id": "COT-01", "score": 0.5192856580018997, "sibling_score": null, "answer_score": 0.5192856580018997, "sibling_qid": "", "sibling_text": "oil tanker types definitions and cargo capability oil tanker definition is marpol annex i reg 1 it sweeps in combination carriers nls tankers and gas carriers carrying oil crude vs product vs chemical is set by service and cargo not size alone", "sibling_family": "", "via": "answer_title", "answer_title": "Oil-tanker types, definitions and cargo capability", "cross_family": false } ] }, { "qid": "KOL-2020-01-3978-Q004", "text": "What is ISM and it’s objectives?", "family": "Surveys - Statutory", "subtopic": "Audit (Internal/External)", "tid": "KOL-2020-01-3978", "tray": "new", "candidates": [ { "answer_id": "ISM-ELEM-001", "score": 0.6375136375427246, "sibling_score": 0.6375136375427246, "answer_score": 0.3806071847677231, "sibling_qid": "MUM-2025-09-0457-Q008", "sibling_text": "objectives of ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": true }, { "answer_id": "ISM-AUD-P02-002", "score": 0.532015323638916, "sibling_score": 0.532015323638916, "answer_score": 0.3512851968407631, "sibling_qid": "KOC-2026-01-2087-Q013", "sibling_text": "what is the purpose of ism internal", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM Code — what it is, purpose, objectives and structure", "cross_family": true }, { "answer_id": "ISM-DPA-002", "score": 0.48956364393234253, "sibling_score": 0.48956364393234253, "answer_score": null, "sibling_qid": "KOC-2023-03-0172-Q004", "sibling_text": "ism who is responsible for ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "DPA basis : which convention, which code, and who is responsible for ISM", "cross_family": true } ] }, { "qid": "KOL-2020-01-3978-Q005", "text": "What is SMS?", "family": "Surveys - Statutory", "subtopic": "Audit (Internal/External)", "tid": "KOL-2020-01-3978", "tray": "review", "candidates": [ { "answer_id": "ISM-SMCDOC-A-001", "score": 0.688025712966919, "sibling_score": 0.688025712966919, "answer_score": 0.32872839123010633, "sibling_qid": "MUM-2026-05-3182-Q002", "sibling_text": "what is sms", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM certificates: the DOC and SMC family", "cross_family": true }, { "answer_id": "SMSFR-002", "score": 0.6475688219070435, "sibling_score": 0.6475688219070435, "answer_score": 0.3605620443820953, "sibling_qid": "KOL-2025-11-1118-Q005", "sibling_text": "what is there in sms", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the Safety Management System — the SMS manual, its contents, objectives, why it is needed onboard, and the company SMS policy?", "cross_family": true }, { "answer_id": "ISM-AUD-P02-004", "score": 0.6298485994338989, "sibling_score": 0.6298485994338989, "answer_score": null, "sibling_qid": "MUM-2022-08-0033-Q001", "sibling_text": "contents of sms", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "SMS contents, manuals, documents and drill records onboard", "cross_family": true } ] }, { "qid": "KOL-2020-01-3978-Q006", "text": "SMC certificate and DOC certificate?", "family": "Surveys - Statutory", "subtopic": "Audit (Internal/External)", "tid": "KOL-2020-01-3978", "tray": "new", "candidates": [ { "answer_id": "CERT-LIST-P02-002", "score": 0.6253061294555664, "sibling_score": 0.6253061294555664, "answer_score": 0.40200859904289243, "sibling_qid": "KOC-2021-07-0011-Q015", "sibling_text": "documents certificates", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Document of Compliance, Certificate and Statement of Compliance", "cross_family": false }, { "answer_id": "ISM-SMC-B-001", "score": 0.6084875464439392, "sibling_score": 0.6084875464439392, "answer_score": 0.44349507689476014, "sibling_qid": "MUM-2023-09-0126-Q002S7", "sibling_text": "ism code certificates doc smc all details", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "SMC — purpose, contents, issue and validity", "cross_family": true }, { "answer_id": "CERT-LIST-P01-001", "score": 0.5967559814453125, "sibling_score": 0.5967559814453125, "answer_score": null, "sibling_qid": "KOC-2023-01-0142-Q002", "sibling_text": "certificates", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "List the statutory certificates carried onboard a ship.", "cross_family": false } ] }, { "qid": "KOL-2020-02-0385-Q001", "text": "What is the IMO guideline for the safe evacuation of crew and personnel from car decks in case of an emergency in car carrier and RORO vessels?", "family": "Risk & Safety Management", "subtopic": "Enclosed Space Entry", "tid": "KOL-2020-02-0385", "tray": "new", "candidates": [ { "answer_id": "FFH-002", "score": 0.5654191374778748, "sibling_score": 0.5654191374778748, "answer_score": null, "sibling_qid": "KOL-2020-03-3980-Q005", "sibling_text": "imo guidelines on formal safety assessment", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "Is there an 'FSA Code'? The IMO FSA guideline framework", "cross_family": false }, { "answer_id": "LSA-CODE-BF044-004", "score": 0.5649696588516235, "sibling_score": 0.5649696588516235, "answer_score": null, "sibling_qid": "KOL-2021-01-0465-Q001", "sibling_text": "escape routes and regulations for cargo hold in car carrier discussion about how it was on my ship", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "What is the regulation for the use of the emergency escape route and escape appliances?", "cross_family": true }, { "answer_id": "IMO-5PIL-005", "score": 0.5310081839561462, "sibling_score": 0.5310081839561462, "answer_score": null, "sibling_qid": "MUM-2026-02-0769-Q006", "sibling_text": "various conventions under imo for safety", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "IMO conventions for ship safety", "cross_family": true } ] }, { "qid": "KOL-2020-02-0385-Q002", "text": "What are the 6 latest amendments to the IMDG code with effect from 01.01.2020?", "family": "Other Conventions", "subtopic": "IMDG Code", "tid": "KOL-2020-02-0385", "tray": "new", "candidates": [ { "answer_id": "IMDG-012", "score": 0.538373589515686, "sibling_score": 0.538373589515686, "answer_score": 0.39394862353801724, "sibling_qid": "KOC-2025-03-0571-Q003", "sibling_text": "latest ammendments in imdg code", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What are the latest amendments to the IMDG Code?", "cross_family": false }, { "answer_id": "IGC-IGF-004", "score": 0.47083598375320435, "sibling_score": 0.47083598375320435, "answer_score": 0.3170774310827255, "sibling_qid": "MUM-2025-12-0649-Q015", "sibling_text": "latest amendment in igc code", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Latest amendments / new regulations — IGC and gas tankers", "cross_family": false }, { "answer_id": "COT-P02-10", "score": 0.46404874324798584, "sibling_score": 0.46404874324798584, "answer_score": null, "sibling_qid": "KOC-2025-10-2079-Q013", "sibling_text": "ig system latest amendments got function 6 only", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "State and explain the latest statutory amendments affecting tanker inert-gas systems, including applicability and practical changes on board.", "cross_family": true } ] }, { "qid": "KOL-2020-02-0385-Q004", "text": "Name all the elements of the ISM code. What do you mean by general preparedness? How does the STCW code and the ISM code complement to each other's amendments?", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOL-2020-02-0385", "tray": "new", "candidates": [ { "answer_id": "ISM-ELEM-002", "score": 0.6036795973777771, "sibling_score": 0.6036795973777771, "answer_score": null, "sibling_qid": "KOC-2026-02-0832-Q008", "sibling_text": "ism code explain all elements", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the ISM Code?", "cross_family": false }, { "answer_id": "ISM-ELEM-005", "score": 0.5731956362724304, "sibling_score": 0.5731956362724304, "answer_score": null, "sibling_qid": "KOL-2026-01-1154-Q006", "sibling_text": "emergency preparedness under ism code", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Emergency preparedness (Element 8)", "cross_family": false }, { "answer_id": "ISM-ELEM-003", "score": 0.5627202391624451, "sibling_score": 0.5627202391624451, "answer_score": 0.4858304291963577, "sibling_qid": "CHE-2026-08-3866-Q006", "sibling_text": "chapters of ism code", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": false } ] }, { "qid": "KOL-2020-02-0387-Q001", "text": "Solid ballast? Is it loaded and unloaded frequently?", "family": "", "subtopic": "GM / KM / KB / Metacentric", "tid": "KOL-2020-02-0387", "tray": "new", "candidates": [ { "answer_id": "COT-14", "score": 0.4966541528701782, "sibling_score": 0.4966541528701782, "answer_score": null, "sibling_qid": "KOL-2026-07-4253-Q003", "sibling_text": "segregated ballast and and capacity", "sibling_family": "Ship Construction", "via": "sibling", "answer_title": "SBT applicability, capacity and draught criteria", "cross_family": false }, { "answer_id": "GM-META-002", "score": 0.4848690927028656, "sibling_score": 0.4848690927028656, "answer_score": 0.37654193490743637, "sibling_qid": "KOC-2022-01-0054-Q002", "sibling_text": "sir want exactly this answer how it varies with loading and discharge i dnt know the answer but he marked this questions as correct one because of the first answer", "sibling_family": "", "via": "sibling", "answer_title": "How loading, discharge, ballast and lifts move G and GM", "cross_family": false }, { "answer_id": "COT-13", "score": 0.47327089309692383, "sibling_score": 0.47327089309692383, "answer_score": null, "sibling_qid": "KOL-2025-08-1026-Q002", "sibling_text": "open ballast", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Segregated, clean, dedicated and open ballast", "cross_family": false } ] }, { "qid": "KOL-2020-02-0389-Q002", "text": "Charter party", "family": "Other Conventions", "subtopic": "CLC / Civil Liability", "tid": "KOL-2020-02-0389", "tray": "new", "candidates": [ { "answer_id": "CERT-LIST-P03-001", "score": 0.5695529580116272, "sibling_score": 0.5695529580116272, "answer_score": 0.40548885762691494, "sibling_qid": "MUM-2026-06-3645-Q003", "sibling_text": "statutory certificates for oil tanker", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "MARPOL, AFS & annex-specific certificates", "cross_family": false }, { "answer_id": "CLC-CIV-A-004", "score": 0.561866283416748, "sibling_score": 0.561866283416748, "answer_score": null, "sibling_qid": "KOL-2025-10-1110-Q008", "sibling_text": "two clc certificates on oil tanker", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "CLC certificate, blue card and certificate of financial security", "cross_family": false }, { "answer_id": "CLC-CIV-A-007", "score": 0.557122528553009, "sibling_score": 0.557122528553009, "answer_score": null, "sibling_qid": "KOL-2025-09-1061-Q006", "sibling_text": "clc and bunker convention", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Bunker Convention — scope, liability and certificate", "cross_family": false } ] }, { "qid": "KOL-2020-02-0389-Q003", "text": "Principle of general average", "family": "Other Conventions", "subtopic": "CLC / Civil Liability", "tid": "KOL-2020-02-0389", "tray": "new", "candidates": [ { "answer_id": "PUR-OPS-P01-001", "score": 0.4447973370552063, "sibling_score": 0.4447973370552063, "answer_score": null, "sibling_qid": "KOL-2020-11-1557-Q004", "sibling_text": "alcap principle", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "ALCAP / modern self-ejecting purifier — concept, working, and the difference from a conventional purifier", "cross_family": true }, { "answer_id": "NOISE-CODE-001", "score": 0.4057343304157257, "sibling_score": 0.4057343304157257, "answer_score": null, "sibling_qid": "MUM-2026-06-3644-Q004", "sibling_text": "weighted sea average also noise code which all ships applicable", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is the Noise Code — under which convention, and what does it cover?", "cross_family": false }, { "answer_id": "SIMP-RULE-002", "score": 0.38706403970718384, "sibling_score": 0.38706403970718384, "answer_score": null, "sibling_qid": "KOC-2021-11-0032-Q006", "sibling_text": "simpsons 1st and 2nd rule assumptions", "sibling_family": "Naval Architecture Calculations", "via": "sibling", "answer_title": "What assumptions are used in Simpson's first and second rules?", "cross_family": true } ] }, { "qid": "KOL-2020-02-0389-Q005", "text": "Resistance and cross questions", "family": "", "subtopic": "Resistance & Propulsion", "tid": "KOL-2020-02-0389", "tray": "new", "candidates": [ { "answer_id": "RPT-A-002", "score": 0.5095336437225342, "sibling_score": 0.5095336437225342, "answer_score": null, "sibling_qid": "CHE-2026-05-0545-Q008", "sibling_text": "reverse power trip and cross questions", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Explain reverse power trip", "cross_family": false }, { "answer_id": "RES-PROP-P01-002", "score": 0.5067550539970398, "sibling_score": 0.5067550539970398, "answer_score": null, "sibling_qid": "KOL-2017-01-0049-Q002", "sibling_text": "types of resistance", "sibling_family": "", "via": "sibling", "answer_title": "Resistance types and methods of reducing them", "cross_family": false }, { "answer_id": "NER-HV-P04-002", "score": 0.4938957691192627, "sibling_score": 0.4938957691192627, "answer_score": null, "sibling_qid": "CHE-2026-03-0356-Q003", "sibling_text": "what is ner how it s resistance is calculated", "sibling_family": "", "via": "sibling", "answer_title": "How the NER value is selected/calculated, and its construction and material", "cross_family": false } ] }, { "qid": "KOL-2020-02-0390-Q002", "text": "Spontaneous reaction", "family": "Materials & Metallurgy", "subtopic": "Chemical Reaction / Spontaneous Reaction", "tid": "KOL-2020-02-0390", "tray": "new", "candidates": [ { "answer_id": "IMSBC-BULK-001", "score": 0.5978512763977051, "sibling_score": 0.5978512763977051, "answer_score": null, "sibling_qid": "KOL-2021-04-0490-Q002", "sibling_text": "spontaneous ignition", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Coal: spontaneous combustion, self-heating and methane", "cross_family": true }, { "answer_id": "TNK-SAFE-BF26-006", "score": 0.5654289722442627, "sibling_score": 0.5654289722442627, "answer_score": null, "sibling_qid": "KOC-2025-11-0712-Q006", "sibling_text": "pyrophoric reaction", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What are the sources of ignition on an oil tanker?", "cross_family": true }, { "answer_id": "COT-P03-07", "score": 0.32848897874355315, "sibling_score": null, "answer_score": 0.32848897874355315, "sibling_qid": "", "sibling_text": "two cargoes mixing in a product tanker exact definition consequences assessment and immediate actions definition pair the examiner wants verbatim sharp incompatibility dangerous reaction on mixing heat gas fire polymerisation toxic products contamination quality loss without dangerous reaction possible consequences of mixing exothermic reaction and runaway heating gas evolution and tank over press", "sibling_family": "", "via": "answer_title", "answer_title": "Two cargoes mixing in a product tanker — exact definition, consequences, assessment and immediate actions", "cross_family": false } ] }, { "qid": "KOL-2020-02-0390-Q008", "text": "Crankshaft material, case hardening for same ?", "family": "Workshop & Welding", "subtopic": "Pre-heat / Post-heat", "tid": "KOL-2020-02-0390", "tray": "review", "candidates": [ { "answer_id": "HT-A-001", "score": 0.6679507493972778, "sibling_score": 0.6679507493972778, "answer_score": null, "sibling_qid": "MUM-2026-03-2609-Q005", "sibling_text": "crankshaft material and heat treatment process", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Heat treatment: what it is, the main methods, and why it is done", "cross_family": true }, { "answer_id": "HEAT-TRT-C-001", "score": 0.6317762136459351, "sibling_score": 0.6317762136459351, "answer_score": null, "sibling_qid": "KOL-2019-10-1486-Q003", "sibling_text": "crank shaft treatment before and after what temperature what will happen if we treat at 200 400 600 and infinite question both case case hardened and nitriding", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Nitriding — process, gas and where it is used on board", "cross_family": true }, { "answer_id": "CRANK-217-001", "score": 0.6261248588562012, "sibling_score": 0.6261248588562012, "answer_score": null, "sibling_qid": "MUM-2026-05-3266-Q006", "sibling_text": "material of crankshaft", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankshaft types and how the type is identified", "cross_family": true } ] }, { "qid": "KOL-2020-02-0392-Q001", "text": "You observe a emergency on you ship how will proceed", "family": "ISM Code", "subtopic": "Root Cause / Incident Reporting", "tid": "KOL-2020-02-0392", "tray": "review", "candidates": [ { "answer_id": "ISM-AUD-P03-003", "score": 0.6621299386024475, "sibling_score": 0.6621299386024475, "answer_score": null, "sibling_qid": "KOL-2026-02-1183-Q003", "sibling_text": "emergency situation on ship how to deal as a 2nd engineer tell me in brief", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Non-conformity, major non-conformity and incident reporting under SMS", "cross_family": false }, { "answer_id": "UPT-FIRE-003", "score": 0.6073707938194275, "sibling_score": 0.6073707938194275, "answer_score": null, "sibling_qid": "KOL-2019-02-3212-Q002", "sibling_text": "ship is in mid sea running there is a small fire in economiser your course of action and instructions to junior engineers", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Fire in the exhaust gas boiler or economiser — actions and instructions to the duty engineers", "cross_family": true }, { "answer_id": "CAS-ESTOP-007", "score": 0.5876857042312622, "sibling_score": 0.5876857042312622, "answer_score": 0.537533950805664, "sibling_qid": "MUM-2022-10-2152-Q005", "sibling_text": "explain how will you take ship to safe port full procedure", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Major machinery casualty — first actions and taking the ship to a safe port", "cross_family": true } ] }, { "qid": "KOL-2020-02-0392-Q007", "text": "sua convention", "family": "ISPS", "subtopic": "ISPS Code / Security Level", "tid": "KOL-2020-02-0392", "tray": "review", "candidates": [ { "answer_id": "IMO-CODES-P02-001", "score": 0.6877903938293457, "sibling_score": 0.6877903938293457, "answer_score": null, "sibling_qid": "KOC-2023-11-0246-Q001", "sibling_text": "convention", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "IMO instruments: convention, code, protocol, amendment, regulation, resolution and rule", "cross_family": true }, { "answer_id": "AFS-309-001", "score": 0.6209943890571594, "sibling_score": 0.6209943890571594, "answer_score": null, "sibling_qid": "KOC-2022-01-0058-Q004", "sibling_text": "afs convention", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "The AFS Convention — what it is, why it came, what it controls", "cross_family": true }, { "answer_id": "IMO-CODES-P03-001", "score": 0.6170281171798706, "sibling_score": 0.6170281171798706, "answer_score": 0.3367175132036209, "sibling_qid": "KOC-2023-10-0223-Q001", "sibling_text": "what are the conventions", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Important IMO conventions and codes: parent links", "cross_family": true } ] }, { "qid": "KOL-2020-02-0396-Q001", "text": "What is bulk carriers? Why called as bull carriers?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2020-02-0396", "tray": "review", "candidates": [ { "answer_id": "SOLAS12-BC-A-001", "score": 0.6575674414634705, "sibling_score": 0.6575674414634705, "answer_score": 0.4777848422527313, "sibling_qid": "MUM-2026-06-3626-Q002", "sibling_text": "define bulk carrier", "sibling_family": "SOLAS - General (HOLD)", "via": "sibling", "answer_title": "SOLAS definition and scope of a bulk carrier", "cross_family": true }, { "answer_id": "SOLAS-XII-BC-002", "score": 0.6010773181915283, "sibling_score": 0.6010773181915283, "answer_score": null, "sibling_qid": "KOC-2026-09-2208-Q005", "sibling_text": "bulk carrier as per solas", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Explain SOLAS Chapter XII — the additional safety measures for bulk carriers", "cross_family": true }, { "answer_id": "BC-IMSBC-002", "score": 0.4703195601701736, "sibling_score": null, "answer_score": 0.4703195601701736, "sibling_qid": "", "sibling_text": "2 bulk carrier construction and structural design single deck engine aft large holds wide hatch openings sized for grab discharge topside upper wing tanks hopper lower wing tanks double bottom ballast capacity and self trimming hold geometry", "sibling_family": "", "via": "answer_title", "answer_title": "2. Bulk carrier construction and structural design", "cross_family": false } ] }, { "qid": "KOL-2020-02-0396-Q005", "text": "As 2nd engg. Write a letter to super saying hull is damage,mention which part is damage how to find out which part?", "family": "ISM Code", "subtopic": "Root Cause / Incident Reporting", "tid": "KOL-2020-02-0396", "tray": "review", "candidates": [ { "answer_id": "DS-P05-002", "score": 0.7218908071517944, "sibling_score": 0.7218908071517944, "answer_score": null, "sibling_qid": "KOL-2017-10-0120-Q003", "sibling_text": "how will u tell exact location of damage of hull occurs", "sibling_family": "", "via": "sibling", "answer_title": "2. Damage control plan, hull damage/flooding actions and casualty response", "cross_family": false }, { "answer_id": "ISM-AUD-P03-003", "score": 0.7033073306083679, "sibling_score": 0.7033073306083679, "answer_score": null, "sibling_qid": "KOC-2025-10-2075-Q006", "sibling_text": "hull damage has taken place how will you report to your company following sms one more question which i never heard", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Non-conformity, major non-conformity and incident reporting under SMS", "cross_family": false }, { "answer_id": "DUS-P4-04", "score": 0.6774060130119324, "sibling_score": 0.6774060130119324, "answer_score": null, "sibling_qid": "MUM-2025-10-2456-Q002", "sibling_text": "crack on bulkhead sea side actions as second engineer how to inform location of crack to office he wanted to hear nomenclature system of frame", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Card 4 — Crack on a bulkhead: insert welding repair and location reporting", "cross_family": true } ] }, { "qid": "KOL-2020-02-0397-Q002", "text": "Marpol line 4 Intact stability 5 forgot", "family": "MARPOL - Annex I (Oil)", "subtopic": "Oil Discharge Criteria", "tid": "KOL-2020-02-0397", "tray": "new", "candidates": [ { "answer_id": "GARB-261-001", "score": 0.5934368371963501, "sibling_score": 0.5934368371963501, "answer_score": null, "sibling_qid": "KOL-2017-07-0101-Q004", "sibling_text": "4 marpol annex 5", "sibling_family": "MARPOL - Annex V (Garbage)", "via": "sibling", "answer_title": "MARPOL Annex V — scope, definitions and the garbage categories", "cross_family": true }, { "answer_id": "ODC-017", "score": 0.5883452296257019, "sibling_score": 0.5883452296257019, "answer_score": 0.4114238858222961, "sibling_qid": "KOL-2019-08-0307-Q005", "sibling_text": "marpol line in tankers he only wrote this question on his book but dint ask me after asking 4 questions asked me to wait outside thanks a lot guys done with class 2 keep posting keep helping each other s together we stand brothers", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "The MARPOL line and the MARPOL seal", "cross_family": false }, { "answer_id": "ODC-001", "score": 0.5749617218971252, "sibling_score": 0.5749617218971252, "answer_score": null, "sibling_qid": "KOL-2024-09-0865-Q006", "sibling_text": "marpol", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "MARPOL Annex I oil discharge criteria — the overall framework", "cross_family": false } ] }, { "qid": "KOL-2020-02-1517-Q004", "text": "Why turning moment in ahead is more than astern( for rudder)", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2020-02-1517", "tray": "review", "candidates": [ { "answer_id": "SPR-STERN-001", "score": 0.6641342043876648, "sibling_score": 0.6641342043876648, "answer_score": null, "sibling_qid": "KOL-2026-02-2041-Q002", "sibling_text": "why ahead turning moment more than astern", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Propeller design factors, efficiency, handedness & material", "cross_family": true }, { "answer_id": "STEER-055-A-004", "score": 0.5978323817253113, "sibling_score": 0.5978323817253113, "answer_score": null, "sibling_qid": "KOL-2019-02-3212-Q005", "sibling_text": "rudder is taking more to come from one side to the other reasons and maintenance", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Hydraulic faults — air, sluggish response, locking, leakage", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.5384789705276489, "sibling_score": 0.5384789705276489, "answer_score": null, "sibling_qid": "MUM-2026-06-3584-Q005", "sibling_text": "what takes weight of rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false } ] }, { "qid": "KOL-2020-02-1517-Q009", "text": "What is Boiler swell and remedy", "family": "Boilers - Operations & Firing", "subtopic": "Boiler Water Circulation", "tid": "KOL-2020-02-1517", "tray": "review", "candidates": [ { "answer_id": "DP-TX-006", "score": 0.6694503426551819, "sibling_score": 0.6694503426551819, "answer_score": 0.5015186220407486, "sibling_qid": "KOL-2025-08-2012-Q004", "sibling_text": "swell and shrink in boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler swell and shrink in relation to DP level measurement and control", "cross_family": false }, { "answer_id": "LWL-004", "score": 0.6336923241615295, "sibling_score": 0.6336923241615295, "answer_score": 0.5306578397750854, "sibling_qid": "KOL-2021-08-3446-Q003", "sibling_text": "what is swell and shrinkage how swell and shrinkage is nullified in boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "What are swell and shrinkage, and how are they nullified in the boiler?", "cross_family": false }, { "answer_id": "BBF-621-002", "score": 0.6072307229042053, "sibling_score": 0.6072307229042053, "answer_score": null, "sibling_qid": "KOC-2026-05-0004-Q007", "sibling_text": "boiler blow back reason and action", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Backfire has occurred on the oil-fired boiler. What are your actions as 2/E, and what instructions do you give the junior engineer or watchkeeper?", "cross_family": false } ] }, { "qid": "KOL-2020-02-1520-Q010", "text": "Compressor bumping clearance has been increased after decarb. How to adjust? (you have only standard thickness gasket available)", "family": "Air Compressor", "subtopic": "Reciprocating Compressor", "tid": "KOL-2020-02-1520", "tray": "review", "candidates": [ { "answer_id": "MAC-353-008", "score": 0.6869651675224304, "sibling_score": 0.6869651675224304, "answer_score": 0.47015880346298217, "sibling_qid": "KOL-2026-09-4310-Q004", "sibling_text": "how to adjust the bumping clearance in air compressor", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Taking bumping clearance without opening the cylinder (lead-ball method)", "cross_family": false }, { "answer_id": "AC-VE-001", "score": 0.6847310066223145, "sibling_score": 0.6847310066223145, "answer_score": null, "sibling_qid": "KOL-2023-02-1725-Q007", "sibling_text": "volumetric efficiency of compressor gone done bumping clearance adjustment", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Volumetric efficiency: define it, and if it drops how do you improve it (with bumping clearance)?", "cross_family": false }, { "answer_id": "RUN-CLR-002", "score": 0.6614288091659546, "sibling_score": 0.6614288091659546, "answer_score": 0.47016670703887936, "sibling_qid": "MUM-2026-06-3501-Q002", "sibling_text": "bumping clearance how to adjust", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Bumping clearance — what it is, why it matters, effects, and how it is adjusted", "cross_family": false } ] }, { "qid": "KOL-2020-02-1520-Q013", "text": "What steps to be done before lifting the piston out of generator?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE Conrod / Piston", "tid": "KOL-2020-02-1520", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-002", "score": 0.6587992310523987, "sibling_score": 0.6587992310523987, "answer_score": null, "sibling_qid": "KOL-2023-02-1725-Q008", "sibling_text": "piston seized in generator how will you remove piston all safety precautions and complete method", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Seized piston in an AE liner — actions and safe removal", "cross_family": false }, { "answer_id": "PIST-CSI-B-001", "score": 0.6438303589820862, "sibling_score": 0.6438303589820862, "answer_score": null, "sibling_qid": "KOC-2025-02-1902-Q005", "sibling_text": "checks done before piston take out", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Main-engine piston — construction and the checks expected", "cross_family": true }, { "answer_id": "PIST-CSI-C-003", "score": 0.6374961137771606, "sibling_score": 0.6374961137771606, "answer_score": 0.547676619887352, "sibling_qid": "KOC-2025-10-1952-Q010", "sibling_text": "what all precautions if you want to take out the piston i started saying that lifting tool should be proper thats only after piston reaches tdc then i said grind wear ridges guide the foot properly without touching anywhere then he said palm bolts should be removed so i asked whether you want the procedure if yes i can say the procedure then he said no just precautions then i said we should keep distance piece then he said it is procedure so i said stuffing box should be taken care so that it comes with the piston properly then he said stuffing box diagphram bolts should be removed little bit confusion about precaution he is expecting and procedure", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston removal, lifting precautions and overhaul / decarbonising", "cross_family": true } ] }, { "qid": "KOL-2020-02-1522-Q004", "text": "Cut outs in a boiler", "family": "Boilers - Operations & Firing", "subtopic": "Boiler Operations", "tid": "KOL-2020-02-1522", "tray": "new", "candidates": [ { "answer_id": "BLR-MANHOLE-002", "score": 0.5963306427001953, "sibling_score": 0.5963306427001953, "answer_score": null, "sibling_qid": "KOL-2018-01-1343-Q005", "sibling_text": "hole major axis on which side if cut on boiler", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Why is the manhole door elliptical, and which way does the major axis run?", "cross_family": true }, { "answer_id": "BLRBURN-009", "score": 0.5385674834251404, "sibling_score": 0.5385674834251404, "answer_score": null, "sibling_qid": "CHE-2026-02-0483-Q002", "sibling_text": "boiler burner overhaul", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Explain boiler burner overhaul and maintenance — including overhaul of a pressure jet burner.", "cross_family": false }, { "answer_id": "CTRL-003", "score": 0.5384275913238525, "sibling_score": 0.5384275913238525, "answer_score": null, "sibling_qid": "KOL-2026-07-4281-Q002", "sibling_text": "spilt control in boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Split-range control — working and use", "cross_family": false } ] }, { "qid": "KOL-2020-02-1527-Q001", "text": "Primary fnctn of bedplate", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Bedplate / A-Frame", "tid": "KOL-2020-02-1527", "tray": "new", "candidates": [ { "answer_id": "FWFB-P02-007", "score": 0.54658442735672, "sibling_score": 0.54658442735672, "answer_score": null, "sibling_qid": "MUM-2026-03-2952-Q007", "sibling_text": "what type of bedplate", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Transverse and longitudinal girders: arrangement and purpose", "cross_family": false }, { "answer_id": "BED-CHOCK-001", "score": 0.4930409789085388, "sibling_score": 0.4930409789085388, "answer_score": null, "sibling_qid": "MUM-2023-08-0952-Q004", "sibling_text": "how to fix bed plate on ship", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "How is the main-engine bedplate fixed to the ship's structure?", "cross_family": false }, { "answer_id": "CHK-330-004", "score": 0.45617803931236267, "sibling_score": 0.45617803931236267, "answer_score": 0.32052273154258726, "sibling_qid": "MUM-2026-03-1306-Q014S4", "sibling_text": "bed plate parts choking arrangement alignment of shaft intermediate shaft take out procedure", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Chocking arrangement on the main engine bedplate seating", "cross_family": false } ] }, { "qid": "KOL-2020-02-1527-Q005", "text": "various stress acting on crankshaft", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft / Crankpin", "tid": "KOL-2020-02-1527", "tray": "review", "candidates": [ { "answer_id": "CRK-DEFL-001", "score": 0.7849245667457581, "sibling_score": 0.7849245667457581, "answer_score": null, "sibling_qid": "CHE-2026-05-0648-Q005", "sibling_text": "stresses on crank shaft not accepting any stress", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Purpose, timing and scope of crankshaft deflection", "cross_family": false }, { "answer_id": "CPP-GRM-05", "score": 0.6978781223297119, "sibling_score": 0.6978781223297119, "answer_score": null, "sibling_qid": "KOC-2026-09-2173-Q002", "sibling_text": "static dynamic load in crankshaft", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Static and dynamic engine loads", "cross_family": true }, { "answer_id": "CRK-DEFL-006", "score": 0.6952961087226868, "sibling_score": 0.6952961087226868, "answer_score": null, "sibling_qid": "KOL-2017-07-1852-Q006", "sibling_text": "grounding and affect in crankshaft", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Checks after grounding, refloating or heavy weather", "cross_family": false } ] }, { "qid": "KOL-2020-02-1529-Q002", "text": "If there is 3mm shoot deposit and 1 mm scale formation on tube of bolier , then how much reduction in efficiency in boiler.", "family": "Boilers - Operations & Firing", "subtopic": "Soot Blower / Economiser Fire", "tid": "KOL-2020-02-1529", "tray": "new", "candidates": [ { "answer_id": "ACC-603-001", "score": 0.5651393532752991, "sibling_score": 0.5651393532752991, "answer_score": null, "sibling_qid": "KOC-2023-10-1285-Q003", "sibling_text": "3 acc of boiler automatic combustion control", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "The automatic combustion control system — how it works, the start sequence, and the emergency arrangement", "cross_family": false }, { "answer_id": "BLR-OPS-012", "score": 0.5622690916061401, "sibling_score": 0.5622690916061401, "answer_score": 0.48624075651168824, "sibling_qid": "MUM-2024-06-0959-Q006", "sibling_text": "boiler efficiency degraded how will u improve it as 2eo", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler efficiency has degraded: how would you improve it as Second Engineer?", "cross_family": false }, { "answer_id": "BWTEST-A-002", "score": 0.5553441047668457, "sibling_score": 0.5553441047668457, "answer_score": null, "sibling_qid": "KOL-2025-11-1826-Q001", "sibling_text": "boiler dissolved solid increased how to reduce", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What does high boiler-water chloride, salinity or TDS indicate, and what action is required?", "cross_family": true } ] }, { "qid": "KOL-2020-02-1529-Q003", "text": "Relief valve area.", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2020-02-1529", "tray": "new", "candidates": [ { "answer_id": "ACRV-005", "score": 0.6436331868171692, "sibling_score": 0.6436331868171692, "answer_score": null, "sibling_qid": "MUM-2026-06-3450-Q008", "sibling_text": "what is blowdown in relief valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": false }, { "answer_id": "ACRV-003", "score": 0.6179866790771484, "sibling_score": 0.6179866790771484, "answer_score": 0.4511759340763092, "sibling_qid": "KOL-2019-05-3237-Q006", "sibling_text": "requirement fuction of relief valve", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Relief valve — requirement, function, and construction/drawing", "cross_family": true }, { "answer_id": "FFF-A-003", "score": 0.60056471824646, "sibling_score": 0.60056471824646, "answer_score": null, "sibling_qid": "KOL-2025-09-1032-Q002", "sibling_text": "relief valve fire line why", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fire main, hydrants, isolating and deck valves, and fire-line fittings", "cross_family": true } ] }, { "qid": "KOL-2020-02-1530-Q004", "text": "Why EGE safety valve setting is higher than aux boiler safety valve?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2020-02-1530", "tray": "review", "candidates": [ { "answer_id": "ECON-EGB-004", "score": 0.6732991337776184, "sibling_score": 0.6732991337776184, "answer_score": 0.46238786578178404, "sibling_qid": "KOL-2025-10-3868-Q005", "sibling_text": "why economiser safety valve has highier setting than auxiliary boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Safety-valve setting after overhaul & why set higher than the boiler", "cross_family": true }, { "answer_id": "BWTEST-A-001", "score": 0.609836757183075, "sibling_score": 0.609836757183075, "answer_score": null, "sibling_qid": "KOC-2026-05-2126-Q006", "sibling_text": "egb safety valve setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-003", "score": 0.5991957783699036, "sibling_score": 0.5991957783699036, "answer_score": null, "sibling_qid": "KOL-2016-08-1232-Q002", "sibling_text": "why boiler accumulation pressure higher than safety vv pressure when it is tested how boiler pr can go this much even if safety vv is thr", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "The accumulation test and the safety valve — required lift, how lift and capacity are verified, and why accumulation must stay inside the limit", "cross_family": false } ] }, { "qid": "KOL-2020-02-2367-Q002", "text": "Symbol of lighting supply used in tankers", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOL-2020-02-2367", "tray": "new", "candidates": [ { "answer_id": "COT-11", "score": 0.6164462566375732, "sibling_score": 0.6164462566375732, "answer_score": 0.5086544871330261, "sibling_qid": "CHE-2026-05-0527-Q002", "sibling_text": "tanker canopy light", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Tanker ‘canopy light’ — ambiguous fragment, answered on the defensible reading", "cross_family": false }, { "answer_id": "LT-SRC-007", "score": 0.6022916436195374, "sibling_score": 0.6022916436195374, "answer_score": null, "sibling_qid": "KOC-2026-03-1718-Q006", "sibling_text": "navigational ckt where supply coming from regulations where all are the navigational lights", "sibling_family": "", "via": "sibling", "answer_title": "What is the navigation-light supply source, voltage and emergency arrangement?", "cross_family": false }, { "answer_id": "PLE-468-001", "score": 0.5743323564529419, "sibling_score": 0.5743323564529419, "answer_score": 0.4462120831012726, "sibling_qid": "KOC-2026-02-0814-Q005", "sibling_text": "lifeboat embarkation light", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "1. Lifeboat / rescue boat embarkation lighting — requirements and what makes it special (including the embarkation ladder light)", "cross_family": false } ] }, { "qid": "KOL-2020-02-2367-Q004", "text": "Electrical safety systems in generator?. (Systems not ocr, idmt etc)", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator Protection", "tid": "KOL-2020-02-2367", "tray": "review", "candidates": [ { "answer_id": "ALT-GEN-P01-001", "score": 0.6916152238845825, "sibling_score": 0.6916152238845825, "answer_score": 0.5736427545547486, "sibling_qid": "MUM-2026-04-2107-Q013", "sibling_text": "safeties of generator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Alternator/generator safeties and protection trips", "cross_family": false }, { "answer_id": "EMG-DG-P04-004", "score": 0.6871228218078613, "sibling_score": 0.6871228218078613, "answer_score": 0.522279542684555, "sibling_qid": "CHE-2026-04-0375-Q002", "sibling_text": "safeties in emergency generator with alternator including", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Safeties, trips, protections & failure to start / come on load", "cross_family": false }, { "answer_id": "SCR-306-A-001", "score": 0.6801507472991943, "sibling_score": 0.6801507472991943, "answer_score": null, "sibling_qid": "MUM-2026-03-2031-Q004", "sibling_text": "safety taken before working on high voltage how to flash a generator ward leonard system solas regulations for emergency generator what is transducer what is a thyristor internal asked what is plc how is power transfered to m e electronic panel", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What an SCR is and how it works", "cross_family": true } ] }, { "qid": "KOL-2020-02-2370-Q005", "text": "ICCP working ?circuit diagram ? cross questions on circuit ?", "family": "Electrical - ICCP & Cathodic Protection", "subtopic": "ICCP", "tid": "KOL-2020-02-2370", "tray": "review", "candidates": [ { "answer_id": "ICCP-119-P01-002", "score": 0.762729823589325, "sibling_score": 0.762729823589325, "answer_score": 0.5093606412410736, "sibling_qid": "MUM-2025-12-1802-Q003", "sibling_text": "iccp circuit diagram", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP circuit / control arrangement, construction and main components", "cross_family": false }, { "answer_id": "ICCP-119-P01-003", "score": 0.6499051451683044, "sibling_score": 0.6499051451683044, "answer_score": null, "sibling_qid": "KOL-2026-01-2948-Q005", "sibling_text": "iccp working how much current", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP values, impressed-current meaning, anode/cathode roles and materials", "cross_family": false }, { "answer_id": "ICCP-P02-001", "score": 0.6435866951942444, "sibling_score": 0.6435866951942444, "answer_score": null, "sibling_qid": "KOC-2025-05-1536-Q001", "sibling_text": "15 05 11 46 saheem khan function 5 internal satish kamath external aniruba k something visual check of room by internal ac characteristics star connection voltage relation ac circuit components iccp reference electrode material and function of reference electrode shared screen with mac circuit diagram and asks component and function", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP reference cell / reference electrode — purpose, material, location, selection", "cross_family": false } ] }, { "qid": "KOL-2020-02-2374-Q004", "text": "Advantages and disadvantages between AC and DC", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Active / Reactive / Apparent Power", "tid": "KOL-2020-02-2374", "tray": "review", "candidates": [ { "answer_id": "VFD-INV-P02-005", "score": 0.7095537781715393, "sibling_score": 0.7095537781715393, "answer_score": null, "sibling_qid": "CHE-2026-02-0479-Q010", "sibling_text": "why dc is used instead of ac and how is it converted", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "How do rectifier, DC link and inverter stages convert AC to DC and DC to AC?", "cross_family": false }, { "answer_id": "XFMR-THY-D-002", "score": 0.6691978573799133, "sibling_score": 0.6691978573799133, "answer_score": null, "sibling_qid": "MUM-2026-01-1858-Q007", "sibling_text": "which one ac or dc", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Why a transformer needs AC and cannot transform DC", "cross_family": false }, { "answer_id": "ALT-GEN-P04-005", "score": 0.6654922962188721, "sibling_score": 0.6654922962188721, "answer_score": 0.5233209908008575, "sibling_qid": "KOC-2024-06-1364-Q002", "sibling_text": "advantages of ac", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "AC generator versus DC generator, and why ship supply is AC", "cross_family": true } ] }, { "qid": "KOL-2020-02-2374-Q006", "text": "what type of current is used in ICCP,AC or DC? and why?", "family": "Electrical - ICCP & Cathodic Protection", "subtopic": "ICCP", "tid": "KOL-2020-02-2374", "tray": "new", "candidates": [ { "answer_id": "ICCP-119-P01-003", "score": 0.5902199745178223, "sibling_score": 0.5902199745178223, "answer_score": 0.36694732308387756, "sibling_qid": "MUM-2024-02-1424-Q004", "sibling_text": "iccp full with voltages current value", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP values, impressed-current meaning, anode/cathode roles and materials", "cross_family": false }, { "answer_id": "ICCP-119-P01-002", "score": 0.5598092675209045, "sibling_score": 0.5598092675209045, "answer_score": null, "sibling_qid": "MUM-2026-02-1919-Q002", "sibling_text": "iccp circuit explain and values of current and voltage", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP circuit / control arrangement, construction and main components", "cross_family": false }, { "answer_id": "ICCP-P02-001", "score": 0.5556672215461731, "sibling_score": 0.5556672215461731, "answer_score": null, "sibling_qid": "KOC-2026-05-0051-Q002", "sibling_text": "iccp drawing ref voltage 800mv also current applied", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP reference cell / reference electrode — purpose, material, location, selection", "cross_family": false } ] }, { "qid": "KOL-2020-02-3319-Q006", "text": "Fwg working principle", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "KOL-2020-02-3319", "tray": "new", "candidates": [ { "answer_id": "FWG-RO-003", "score": 0.5435349941253662, "sibling_score": 0.5435349941253662, "answer_score": 0.32064219713211056, "sibling_qid": "CHE-2026-05-0533-Q008", "sibling_text": "checks if fwg not getting production", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "The FWG is not producing enough water or its efficiency has dropped. Reasons, checks and action?", "cross_family": false }, { "answer_id": "FWG-RO-001", "score": 0.4843800961971283, "sibling_score": 0.4843800961971283, "answer_score": 0.3573472395539284, "sibling_qid": "MUM-2025-09-1197-Q006", "sibling_text": "fwg working principle did not accept low pressure evaporation and cooling", "sibling_family": "Fresh Water & Domestic Systems", "via": "sibling", "answer_title": "How is vacuum created in the FWG, why does it run under vacuum, and what if the vacuum will not come?", "cross_family": true }, { "answer_id": "OWS-15PPM-008", "score": 0.44559237360954285, "sibling_score": 0.44559237360954285, "answer_score": null, "sibling_qid": "MUM-2025-11-2486-Q007", "sibling_text": "ows why flush with fw", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": true } ] }, { "qid": "KOL-2020-02-3322-Q004", "text": "How to clean Hot clean oil filter.", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "LO Cooler", "tid": "KOL-2020-02-3322", "tray": "review", "candidates": [ { "answer_id": "FLT-BF052-003", "score": 0.6759788990020752, "sibling_score": 0.6759788990020752, "answer_score": 0.5467249989509583, "sibling_qid": "KOL-2018-03-3125-Q002", "sibling_text": "hot filter cleaning procedure how to isolate it and cross questions", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How do you change over and clean a hot fuel filter, and how do you isolate it?", "cross_family": true }, { "answer_id": "LOF-359-006", "score": 0.6729562282562256, "sibling_score": 0.6729562282562256, "answer_score": null, "sibling_qid": "MUM-2023-09-2192-Q004", "sibling_text": "me lube oil filter opened for cleaning n metal particles found wat actions 2 3 more questions dont remember", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Metal Particles Found in ME Lube-Oil Filter — Immediate Actions", "cross_family": false }, { "answer_id": "LOF-359-002", "score": 0.6204935312271118, "sibling_score": 0.6204935312271118, "answer_score": null, "sibling_qid": "MUM-2025-12-1222-Q010", "sibling_text": "which filter is finer fuel oil or lub oil", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "FO Filter vs LO Filter — Which Is Finer, and Why?", "cross_family": false } ] }, { "qid": "KOL-2020-02-3322-Q005", "text": "how fwg is chemically cleaned", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "KOL-2020-02-3322", "tray": "new", "candidates": [ { "answer_id": "HULL-PAINT-001", "score": 0.6424291729927063, "sibling_score": 0.6424291729927063, "answer_score": null, "sibling_qid": "MUM-2026-05-3247-Q009", "sibling_text": "fwg chemical cleaning if no chemical is available what you can use", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Preparing the hull surface before painting in dry dock — cleanliness standard and methods", "cross_family": false }, { "answer_id": "ECON-EGB-005", "score": 0.4912010431289673, "sibling_score": 0.4912010431289673, "answer_score": 0.3840178817510605, "sibling_qid": "KOC-2025-01-1457-Q010", "sibling_text": "egb cleaning wanted to hear chemical cleaning and chemical used didn t knew", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Cleaning, choking & soot-fire prevention / indication / temperature", "cross_family": true }, { "answer_id": "DCP-B-001", "score": 0.4263651967048645, "sibling_score": 0.4263651967048645, "answer_score": null, "sibling_qid": "CHE-2025-08-0017-Q002", "sibling_text": "fixed dcp chemical and it s maintenance", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fixed DCP system — maintenance, agitation, sampling and survey preparation", "cross_family": true } ] }, { "qid": "KOL-2020-02-3323-Q003", "text": "safety v/v lid clearance,angle difference bw spindle and lid,easing gear clearance on top and why it is fitted", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2020-02-3323", "tray": "new", "candidates": [ { "answer_id": "ACRV-005", "score": 0.5615469813346863, "sibling_score": 0.5615469813346863, "answer_score": null, "sibling_qid": "KOC-2026-03-1108-Q007", "sibling_text": "difference between relif vv and safety vv pop up action and blowdown explained x how blowdown is obtained told about lip on disc and blow down ring on seat area increases", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": false }, { "answer_id": "EXV-P02-002", "score": 0.4903073310852051, "sibling_score": 0.4903073310852051, "answer_score": 0.4245358929038048, "sibling_qid": "KOL-2023-10-1758-Q005", "sibling_text": "exhaust valve seat grinding procedure clearance degree of angle cut in lid and seat", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Seat/spindle grinding, templates, clearances (G1·G2·G3·F1) and seating-angle checks", "cross_family": true }, { "answer_id": "BLR-SURV-P02-001", "score": 0.4816928505897522, "sibling_score": 0.4816928505897522, "answer_score": null, "sibling_qid": "MUM-2026-06-3418-Q008", "sibling_text": "constructional diff between high lift and improved high lift safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOL-2020-02-3327-Q003", "text": "Setting of safety valave.", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2020-02-3327", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-001", "score": 0.7403839230537415, "sibling_score": 0.7403839230537415, "answer_score": null, "sibling_qid": "MUM-2026-02-1255-Q006", "sibling_text": "setting of safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "ECON-EGB-004", "score": 0.7233801484107971, "sibling_score": 0.7233801484107971, "answer_score": 0.5205602616071701, "sibling_qid": "KOL-2026-09-4304-Q003", "sibling_text": "safety valve setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Safety-valve setting after overhaul & why set higher than the boiler", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.6969664096832275, "sibling_score": 0.6969664096832275, "answer_score": null, "sibling_qid": "KOC-2026-09-2205-Q019", "sibling_text": "setting safety valve infront of surveyor", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false } ] }, { "qid": "KOL-2020-02-3327-Q006", "text": "generator rpm fluctuations reasons.", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE Governor", "tid": "KOL-2020-02-3327", "tray": "review", "candidates": [ { "answer_id": "GOV-P03-003", "score": 0.7882329225540161, "sibling_score": 0.7882329225540161, "answer_score": 0.5548786520957947, "sibling_qid": "KOL-2017-12-3105-Q003", "sibling_text": "generator rpm fluctuating reason", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Hunting, RPM fluctuation and troubleshooting", "cross_family": true }, { "answer_id": "AEOVT-559-002", "score": 0.7085793614387512, "sibling_score": 0.7085793614387512, "answer_score": 0.5535896092653274, "sibling_qid": "MUM-2025-11-1773-Q001", "sibling_text": "generator started and trip immediately reasons did not accept governor fault no pickup sensor etc triping just immediately after reaching rated rpm", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Generator trips immediately on reaching rated rpm — reasons (governor fault and dead pickup excluded)", "cross_family": false }, { "answer_id": "LS-IMB-A-002", "score": 0.6730968952178955, "sibling_score": 0.6730968952178955, "answer_score": null, "sibling_qid": "KOL-2022-07-2574-Q004", "sibling_text": "two generators running parallel one generator rpm little less why", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "2. Governor speed droop, isochronous control and the load-control switch", "cross_family": true } ] }, { "qid": "KOL-2020-02-3328-Q004", "text": "Safety valve pr testing", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2020-02-3328", "tray": "review", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-003", "score": 0.7226976156234741, "sibling_score": 0.7226976156234741, "answer_score": 0.4837407946586609, "sibling_qid": "MUM-2023-08-2191-Q004", "sibling_text": "safety valve accumulation pr test", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "The accumulation test and the safety valve — required lift, how lift and capacity are verified, and why accumulation must stay inside the limit", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-002", "score": 0.6482279896736145, "sibling_score": 0.6482279896736145, "answer_score": null, "sibling_qid": "MUM-2022-07-2694-Q001", "sibling_text": "accumulation pr test if safety valve lifts then y u want that it should not go beyond 10 like for 10 bar if it lifts at 3 of 10 bar then y it should go beyond that upto 10", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Acceptance limits and durations — the accumulation limit, the maximum test periods, and the action if the limit is exceeded", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.6462984681129456, "sibling_score": 0.6462984681129456, "answer_score": null, "sibling_qid": "MUM-2026-03-2589-Q003", "sibling_text": "checks on safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false } ] }, { "qid": "KOL-2020-02-3330-Q001", "text": "Main engine holding down bolt found slacked, tell reason with corrective action.", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Holding Down Bolts", "tid": "KOL-2020-02-3330", "tray": "new", "candidates": [ { "answer_id": "FB-COUP-001", "score": 0.6464037895202637, "sibling_score": 0.6464037895202637, "answer_score": null, "sibling_qid": "KOL-2026-07-4255-Q002", "sibling_text": "fitted bolt in engine room and why given", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What fitted bolts are, what they do, and where they sit onboard", "cross_family": false }, { "answer_id": "TBR-TT-P02-002", "score": 0.6461142897605896, "sibling_score": 0.6461142897605896, "answer_score": null, "sibling_qid": "MUM-2026-02-2549-Q006", "sibling_text": "holding down bolts tightness check", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Checking tie rod tightness / slackness — stopped and running", "cross_family": false }, { "answer_id": "TBR-TT-P02-001", "score": 0.6369659304618835, "sibling_score": 0.6369659304618835, "answer_score": null, "sibling_qid": "CHE-2026-05-0641-Q012", "sibling_text": "holding down bolts checks and tightening", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Tie rod tightening / hydraulic tensioning procedure", "cross_family": false } ] }, { "qid": "KOL-2020-03-0398-Q004", "text": "How rudder is fitted (Draw)", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2020-03-0398", "tray": "new", "candidates": [ { "answer_id": "TRS-002", "score": 0.6015363931655884, "sibling_score": 0.6015363931655884, "answer_score": 0.49033936858177185, "sibling_qid": "KOC-2026-02-1103-Q008", "sibling_text": "how rudder stock and carrier bearing is attached told 2 half fitted bolts x does bearing turn with rudder i told yes then he told that there are 2 types one turn with rudder other dont turn with rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "DUS-P5-03", "score": 0.5898879766464233, "sibling_score": 0.5898879766464233, "answer_score": 0.454038193821907, "sibling_qid": "KOC-2024-12-2058-Q002", "sibling_text": "draw aft portion of the ship without propeller and rudder in it show the rudder axis which pass through the structure", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Stern frame construction, cross-section and rudder-axis sketch", "cross_family": true }, { "answer_id": "RUD-DROP-001", "score": 0.5764045715332031, "sibling_score": 0.5764045715332031, "answer_score": null, "sibling_qid": "MUM-2026-05-3150-Q003", "sibling_text": "rudder internal painting", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false } ] }, { "qid": "KOL-2020-03-0399-Q003", "text": "How will you carry out hot work in F.O. tanks all precautions and safety and everything?", "family": "Workshop & Welding", "subtopic": "Hot Work", "tid": "KOL-2020-03-0399", "tray": "review", "candidates": [ { "answer_id": "WBS-C-003", "score": 0.7837960124015808, "sibling_score": 0.7837960124015808, "answer_score": 0.5165453970432281, "sibling_qid": "KOC-2025-01-1476-Q002", "sibling_text": "how to carry out hot work near f o tank not accepting anything", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Shipboard hot work — the permit, the designated area, and work near fuel tanks", "cross_family": false }, { "answer_id": "COT-P02-14", "score": 0.6465545296669006, "sibling_score": 0.6465545296669006, "answer_score": 0.5840053051710129, "sibling_qid": "KOC-2023-03-0176-Q005", "sibling_text": "in tanker after finishing cargo need to do hot work what s the procedure", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Explain the complete safe preparation and control process for carrying out hot work inside a tanker cargo tank after discharge.", "cross_family": true }, { "answer_id": "WELD-B-007", "score": 0.6438302397727966, "sibling_score": 0.6438302397727966, "answer_score": null, "sibling_qid": "KOL-2018-03-3132-Q004", "sibling_text": "precaution during carrying out a overhead welding process", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Overhead welding — precautions, checks and advantages", "cross_family": false } ] }, { "qid": "KOL-2020-03-0399-Q005", "text": "EPIRB/ AIS/ LRIT.", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "KOL-2020-03-0399", "tray": "new", "candidates": [ { "answer_id": "EPIRB-003", "score": 0.4395897686481476, "sibling_score": 0.4395897686481476, "answer_score": 0.37034259289503096, "sibling_qid": "KOL-2021-01-0465-Q005", "sibling_text": "all about epirb signal received by", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What signal does the EPIRB send — frequency, how and where it is routed, who receives it, and how it is stored and activated?", "cross_family": true }, { "answer_id": "EPIRB-002", "score": 0.4317079186439514, "sibling_score": 0.4317079186439514, "answer_score": 0.30958833694458004, "sibling_qid": "KOC-2025-11-0712-Q003", "sibling_text": "epirb operation frequency testing", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "How is the EPIRB tested?", "cross_family": true }, { "answer_id": "EPIRB-001", "score": 0.4242555499076843, "sibling_score": 0.4242555499076843, "answer_score": 0.3414362013339996, "sibling_qid": "KOL-2020-10-0433-Q003", "sibling_text": "epirb details", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What is an EPIRB? Explain its construction, working, operation and battery specification.", "cross_family": true } ] }, { "qid": "KOL-2020-03-0400-Q001", "text": "How Rudder is attached to hull?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2020-03-0400", "tray": "review", "candidates": [ { "answer_id": "TRS-002", "score": 0.7002145648002625, "sibling_score": 0.7002145648002625, "answer_score": 0.5210187196731567, "sibling_qid": "KOC-2026-02-1103-Q008", "sibling_text": "how rudder stock and carrier bearing is attached told 2 half fitted bolts x does bearing turn with rudder i told yes then he told that there are 2 types one turn with rudder other dont turn with rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.6517557501792908, "sibling_score": 0.6517557501792908, "answer_score": null, "sibling_qid": "MUM-2026-06-3584-Q005", "sibling_text": "what takes weight of rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "STEER-055-A-003", "score": 0.6293753981590271, "sibling_score": 0.6293753981590271, "answer_score": null, "sibling_qid": "KOL-2023-08-1751-Q006", "sibling_text": "hunting gear mechanism hunting of rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Hunting gear, floating lever and buffer spring", "cross_family": false } ] }, { "qid": "KOL-2020-03-0402-Q004", "text": "who is security incharge on board as per isps", "family": "ISPS", "subtopic": "SSP / SSAS / SSO / CSO", "tid": "KOL-2020-03-0402", "tray": "new", "candidates": [ { "answer_id": "ISPS-P03-001", "score": 0.543069064617157, "sibling_score": 0.543069064617157, "answer_score": 0.47894388139247895, "sibling_qid": "KOC-2023-07-0196-Q008", "sibling_text": "4 company security officer explain", "sibling_family": "ISPS", "via": "sibling", "answer_title": "Company Security Officer (CSO): duties, functions and responsibilities", "cross_family": false }, { "answer_id": "ISPS-SSP-P02-004", "score": 0.5146841406822205, "sibling_score": 0.5146841406822205, "answer_score": null, "sibling_qid": "CHE-2025-08-0016-Q010", "sibling_text": "isps so many cross on declaration of security", "sibling_family": "ISPS", "via": "sibling", "answer_title": "ISSC certification, verification, Code content and Declaration of Security", "cross_family": false }, { "answer_id": "ISPS-SSP-P02-002", "score": 0.5096918940544128, "sibling_score": 0.5096918940544128, "answer_score": null, "sibling_qid": "MUM-2024-08-0195-Q004", "sibling_text": "ship security plan who has access", "sibling_family": "ISPS", "via": "sibling", "answer_title": "SSP — who prepares it, approval, and who has access", "cross_family": false } ] }, { "qid": "KOL-2020-03-0403-Q004", "text": "What is continental shelf.", "family": "Other Conventions", "subtopic": "UNCLOS", "tid": "KOL-2020-03-0403", "tray": "review", "candidates": [ { "answer_id": "UNCLOS-004", "score": 0.7882766723632812, "sibling_score": 0.7882766723632812, "answer_score": 0.5461173355579376, "sibling_qid": "KOL-2026-03-1198-Q008", "sibling_text": "continental shelf", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is the continental shelf under UNCLOS and what is its range?", "cross_family": false }, { "answer_id": "UNCLOS-003", "score": 0.5811963677406311, "sibling_score": 0.5811963677406311, "answer_score": 0.39906877279281616, "sibling_qid": "KOL-2023-09-0768-Q002", "sibling_text": "what contiguous zone", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What are the maritime zones under UNCLOS — territorial waters, the contiguous zone and the international maritime boundary?", "cross_family": false }, { "answer_id": "UNCLOS-005", "score": 0.5520926117897034, "sibling_score": 0.5520926117897034, "answer_score": 0.43486158549785614, "sibling_qid": "KOC-2024-07-0359-Q001", "sibling_text": "coastal state requirements as per unclos", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is a coastal state under UNCLOS, and how does it differ from the flag state and the port state?", "cross_family": false } ] }, { "qid": "KOL-2020-03-2375-Q001", "text": "E/R control panel what is the voltage rating", "family": "Electrical - Distribution & Panels", "subtopic": "Control Panel Voltage Rating", "tid": "KOL-2020-03-2375", "tray": "review", "candidates": [ { "answer_id": "MSB-ESB-A-003", "score": 0.6513042449951172, "sibling_score": 0.6513042449951172, "answer_score": null, "sibling_qid": "KOL-2025-03-2774-Q003", "sibling_text": "power supply details for control panel in ecr", "sibling_family": "", "via": "sibling", "answer_title": "Feeder panels, group-starter panels and motor panels", "cross_family": false }, { "answer_id": "BDC-P02-04", "score": 0.6015134453773499, "sibling_score": 0.6015134453773499, "answer_score": null, "sibling_qid": "KOL-2020-01-2361-Q003", "sibling_text": "what is the voltage used for the control system and the alarm system battery charging circuit and rectifier circuit", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "The ship's 24 V DC system — how it is produced, why DC, and what it supplies", "cross_family": true }, { "answer_id": "VOLT-SYS-008", "score": 0.5905829668045044, "sibling_score": 0.5905829668045044, "answer_score": null, "sibling_qid": "CHE-2026-02-0339-Q005S2", "sibling_text": "what control circuit voltage in ur ship i said 110vac and 24vdc he expecting 24vdc", "sibling_family": "Electrical - Distribution & MSB", "via": "sibling", "answer_title": "Why standard shipboard voltages: 440, 230/220, 110 and 24", "cross_family": true } ] }, { "qid": "KOL-2020-03-2375-Q003", "text": "Solas reg on emcy source of power supply", "family": "Electrical - Generator & Alternator", "subtopic": "Emergency DG", "tid": "KOL-2020-03-2375", "tray": "new", "candidates": [ { "answer_id": "EDG-P01-001", "score": 0.6319344639778137, "sibling_score": 0.6319344639778137, "answer_score": 0.4351121187210083, "sibling_qid": "MUM-2026-06-3569-Q003", "sibling_text": "solas reg emergency generator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Emergency source of power — the SOLAS requirements", "cross_family": false }, { "answer_id": "EMG-DG-P02-FINAL-2-001", "score": 0.586821436882019, "sibling_score": 0.586821436882019, "answer_score": null, "sibling_qid": "KOC-2023-10-1286-Q001", "sibling_text": "emergency power supplies regulation as per solas", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Emergency generator loads and duration of emergency supply", "cross_family": false }, { "answer_id": "EDG-P01-004", "score": 0.3894161760807037, "sibling_score": null, "answer_score": 0.3894161760807037, "sibling_qid": "", "sibling_text": "emergency generator explain it as a 2nd engineer independent emergency source feeding the emergency switchboard supplies the safety essential loads on loss of main power reg 43 distribution ship typical not a solas figure power loads at the generated voltage commonly 440 v emergency fire pump steering gear emergency air compressor the lighting transformer feed lighting small loads via step down tr", "sibling_family": "", "via": "answer_title", "answer_title": "Emergency generator — explain it as a 2nd Engineer", "cross_family": false } ] }, { "qid": "KOL-2020-03-2376-Q003", "text": "Voltage in control circuit. How a bridge rectifier working . Drawing of waveform.", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Zener / Diode / Rectifier", "tid": "KOL-2020-03-2376", "tray": "review", "candidates": [ { "answer_id": "EPC-P01-03", "score": 0.7592133283615112, "sibling_score": 0.7592133283615112, "answer_score": null, "sibling_qid": "CHE-2026-02-0475-Q003", "sibling_text": "bridge rectifier draw and explain", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Rectifiers — definition, types, and where they are used on board", "cross_family": false }, { "answer_id": "EPC-P01-04", "score": 0.7275259494781494, "sibling_score": 0.7275259494781494, "answer_score": 0.525826171040535, "sibling_qid": "KOC-2026-05-0028-Q005", "sibling_text": "half wave full wave rectifiers with diagram", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Half-wave and full-wave rectification — working, waveforms and comparison", "cross_family": false }, { "answer_id": "VOLT-SYS-008", "score": 0.693562924861908, "sibling_score": 0.693562924861908, "answer_score": null, "sibling_qid": "KOL-2022-07-2582-Q004", "sibling_text": "equipments on bridge supply voltage", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Why standard shipboard voltages: 440, 230/220, 110 and 24", "cross_family": false } ] }, { "qid": "KOL-2020-03-2379-Q003", "text": "what are steering gear motor safeties and why 200% insulation, what is there to prevent motor from burning.", "family": "Electrical - Motors & Starters", "subtopic": "Single Phasing", "tid": "KOL-2020-03-2379", "tray": "review", "candidates": [ { "answer_id": "SGM-ELEC-001", "score": 0.6786308884620667, "sibling_score": 0.6786308884620667, "answer_score": 0.543913048505783, "sibling_qid": "MUM-2022-12-1372-Q008", "sibling_text": "safeties in sg motor what does 200 insulation mean", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What are the safeties, alarms and trips on the steering gear motor as per SOLAS — and how do you activate the safematic?", "cross_family": false }, { "answer_id": "INS-CLASS-001", "score": 0.6779098510742188, "sibling_score": 0.6779098510742188, "answer_score": null, "sibling_qid": "MUM-2026-09-3980-Q012", "sibling_text": "insulation class steering motor insulation class", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What is meant by insulation class?", "cross_family": false }, { "answer_id": "ELEC-SAFE-006", "score": 0.6609112024307251, "sibling_score": 0.6609112024307251, "answer_score": 0.592218691110611, "sibling_qid": "KOL-2017-01-2105-Q003", "sibling_text": "stearing gear electrical safety insulation in motor type how to check insulation", "sibling_family": "", "via": "sibling", "answer_title": "Steering gear electrical safety and motor insulation", "cross_family": false } ] }, { "qid": "KOL-2020-03-2379-Q005", "text": "not remember", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOL-2020-03-2379", "tray": "review", "candidates": [ { "answer_id": "VIB-BAL-B-003", "score": 0.8168599605560303, "sibling_score": 0.8168599605560303, "answer_score": null, "sibling_qid": "KOL-2018-08-0204-Q006", "sibling_text": "not remember", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Torsional vibration: what it is, what causes it, how it is controlled", "cross_family": true }, { "answer_id": "MIP-264-001", "score": 0.6705437898635864, "sibling_score": 0.6705437898635864, "answer_score": null, "sibling_qid": "KOL-2018-07-1395-Q005", "sibling_text": "don t rem mep", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Define MEP / IMEP / MIP and their significance", "cross_family": true }, { "answer_id": "BRG-NOM-001", "score": 0.561754584312439, "sibling_score": 0.561754584312439, "answer_score": null, "sibling_qid": "MUM-2025-08-2347-Q002", "sibling_text": "6203 bearing meaning rest not remember both pass", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bearing Numbers, Suffixes and What to State When Ordering", "cross_family": true } ] }, { "qid": "KOL-2020-03-2380-Q004", "text": "safety in steering motor why 200% insulation.", "family": "Electrical - Motors & Starters", "subtopic": "Single Phasing", "tid": "KOL-2020-03-2380", "tray": "review", "candidates": [ { "answer_id": "SGM-ELEC-001", "score": 0.7028484344482422, "sibling_score": 0.7028484344482422, "answer_score": 0.4874789834022522, "sibling_qid": "MUM-2022-12-1372-Q008", "sibling_text": "safeties in sg motor what does 200 insulation mean", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What are the safeties, alarms and trips on the steering gear motor as per SOLAS — and how do you activate the safematic?", "cross_family": false }, { "answer_id": "INS-CLASS-001", "score": 0.673206627368927, "sibling_score": 0.673206627368927, "answer_score": null, "sibling_qid": "MUM-2026-09-3980-Q012", "sibling_text": "insulation class steering motor insulation class", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What is meant by insulation class?", "cross_family": false }, { "answer_id": "SPHS-B-012", "score": 0.6650368571281433, "sibling_score": 0.6650368571281433, "answer_score": 0.56112941801548, "sibling_qid": "KOL-2022-11-2627-Q006", "sibling_text": "sg safeties electrical main is insulation 200 for motor winding phase failure in that single phasing that he want to know", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Steering gear electrical safeties — the phase failure alarm and the 200% figure", "cross_family": false } ] }, { "qid": "KOL-2020-03-2381-Q003", "text": "Why we clean contractors, what is principle behind it, what is the formula for conductivity ( by Rao sir)", "family": "Electrical - Protection & Relays", "subtopic": "Protection / Relays", "tid": "KOL-2020-03-2381", "tray": "new", "candidates": [ { "answer_id": "HULL-PAINT-001", "score": 0.42728185653686523, "sibling_score": 0.42728185653686523, "answer_score": null, "sibling_qid": "MUM-2024-10-2247-Q010", "sibling_text": "only water is used for cleaning what other means joel sir neeraj sir abhisek sir", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Preparing the hull surface before painting in dry dock — cleanliness standard and methods", "cross_family": true }, { "answer_id": "SHFT-ERTH-300-001", "score": 0.4264480173587799, "sibling_score": 0.4264480173587799, "answer_score": null, "sibling_qid": "KOL-2022-05-2569-Q004", "sibling_text": "shaft earthing everything material why done reason why", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Purpose, principle and arrangement", "cross_family": false }, { "answer_id": "EPC-P03-007", "score": 0.42488545179367065, "sibling_score": 0.42488545179367065, "answer_score": 0.3764051929116249, "sibling_qid": "KOC-2024-12-1455-Q006", "sibling_text": "working of salinometer and material electrical conductivity sensor", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Explain the salinometer — working principle, circuit, probe material, and how the temperature compensation works.", "cross_family": true } ] }, { "qid": "KOL-2020-03-3332-Q004", "text": "Rudder and pintle bearing clearance taking procedure", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2020-03-3332", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.74843829870224, "sibling_score": 0.74843829870224, "answer_score": 0.5529086351394653, "sibling_qid": "KOL-2026-02-3922-Q004", "sibling_text": "tell the procedure for taking rudder pintle clearance", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "PRE-TEN-001", "score": 0.6608270406723022, "sibling_score": 0.6608270406723022, "answer_score": null, "sibling_qid": "MUM-2026-06-3504-Q007", "sibling_text": "rudder carrier bearing removal procedure", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Pre-stressing and pre-tensioning in main-engine bolting", "cross_family": false }, { "answer_id": "RUD-DROP-003", "score": 0.6581411957740784, "sibling_score": 0.6581411957740784, "answer_score": null, "sibling_qid": "KOL-2024-03-3677-Q002", "sibling_text": "how to check rudder drop where to fit trammel gauge rudder drop has reached its max limit and bearing white metal has gone how u ll proceed with its repair and what you ll do to bearing", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Rudder drop at the limit: the decision", "cross_family": false } ] }, { "qid": "KOL-2020-03-3332-Q005", "text": "Safety valve setting.. 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Bulk carrier construction and structural design", "cross_family": false } ] }, { "qid": "KOL-2020-06-0413-Q002", "text": "Name some diseases possibilites for who sailing in chemical tanker", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOL-2020-06-0413", "tray": "review", "candidates": [ { "answer_id": "CHEM-PA-012", "score": 0.6855280995368958, "sibling_score": 0.6855280995368958, "answer_score": null, "sibling_qid": "KOL-2022-12-0709-Q002", "sibling_text": "type of ships done type of chemical tankers types of noxious liquid substances", "sibling_family": "MARPOL - Annex II (NLS)", "via": "sibling", "answer_title": "Differentiating chemical tankers and finding a ship’s allowable cargo", "cross_family": true }, { "answer_id": "IGC-GAS-008", "score": 0.644023060798645, "sibling_score": 0.644023060798645, "answer_score": null, "sibling_qid": "MUM-2022-07-0030-Q006", "sibling_text": "hazards onboard gas carrier", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Cargo hazards and properties of liquefied gases", "cross_family": true }, { "answer_id": "IBC-BCH-B-004", "score": 0.627748966217041, "sibling_score": 0.627748966217041, "answer_score": null, "sibling_qid": "MUM-2026-04-0897-Q001", "sibling_text": "types of ships done chemical tanker", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Certificate of Fitness and MARPOL Annex II in practice", "cross_family": true } ] }, { "qid": "KOL-2020-06-0414-Q003", "text": "3 management review,who carries out this review", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOL-2020-06-0414", "tray": "new", "candidates": [ { "answer_id": "ISM-ELEM-006", "score": 0.646640956401825, "sibling_score": 0.646640956401825, "answer_score": 0.41405846178531647, "sibling_qid": "MUM-2025-06-0335-Q001", "sibling_text": "management review", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Master’s review & management review", "cross_family": false }, { "answer_id": "ISM-AUD-P02-006", "score": 0.646640956401825, "sibling_score": 0.646640956401825, "answer_score": 0.41570273488759996, "sibling_qid": "KOL-2022-03-0619-Q007", "sibling_text": "management review", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Master's review, company / management review and change management", "cross_family": false }, { "answer_id": "ISM-AUDIT-P01-002", "score": 0.4909532070159912, "sibling_score": 0.4909532070159912, "answer_score": null, "sibling_qid": "KOL-2026-10-4319-Q003", "sibling_text": "who verifies and does internal audit", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM/SMS audits and verifications — types, who conducts them, intervals and validity", "cross_family": false } ] }, { "qid": "KOL-2020-06-1534-Q005", "text": "compressor crankcase explosion reasons,how oil mist is formed", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankcase Explosion", "tid": "KOL-2020-06-1534", "tray": "review", "candidates": [ { "answer_id": "CCE-322-001", "score": 0.7506277561187744, "sibling_score": 0.7506277561187744, "answer_score": 0.600164520740509, "sibling_qid": "CHE-2026-09-3912-Q002", "sibling_text": "explain the crankcase explosion how oil vapour is formed how mist is formed", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankcase explosion — how oil mist forms and ignites", "cross_family": false }, { "answer_id": "CCE-322-002", "score": 0.6592578291893005, "sibling_score": 0.6592578291893005, "answer_score": 0.5148122847080231, "sibling_qid": "KOL-2021-02-1578-Q007", "sibling_text": "primary secondary explosion in crankcase", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Primary versus secondary crankcase explosion", "cross_family": false }, { "answer_id": "OMD-001", "score": 0.6556754112243652, "sibling_score": 0.6556754112243652, "answer_score": null, "sibling_qid": "KOC-2026-05-0046-Q010", "sibling_text": "explain crankcase explosion oil mist alarm actions", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "The OMD alarm sounds on your watch. What are your actions, the checks and crankcase inspection that follow, and what are the alarm levels?", "cross_family": true } ] }, { "qid": "KOL-2020-06-1535-Q004", "text": "Jacket water testing and cross ques.", "family": "Heat Exchangers & Coolers", "subtopic": "JCW System", "tid": "KOL-2020-06-1535", "tray": "new", "candidates": [ { "answer_id": "JCW-SYS-004", "score": 0.591337263584137, "sibling_score": 0.591337263584137, "answer_score": null, "sibling_qid": "KOL-2017-10-1328-Q004", "sibling_text": "jacket water treatment why done", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Why jacket water is treated - chemicals used, what Rocor NB stands for, the nitrite level maintained, and removing scale", "cross_family": false }, { "answer_id": "JCW-SYS-001", "score": 0.5356440544128418, "sibling_score": 0.5356440544128418, "answer_score": null, "sibling_qid": "KOL-2017-07-1852-Q014", "sibling_text": "how jacket water is controlled", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "How is jacket water temperature controlled - HT/LT controllers, cascade, why it is kept high, and testing the thermostatic valve", "cross_family": false }, { "answer_id": "JCW-SYS-003", "score": 0.5205775499343872, "sibling_score": 0.5205775499343872, "answer_score": null, "sibling_qid": "MUM-2025-12-1222-Q007", "sibling_text": "jacket water temp rising from 70 to 75 actions", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "ME jacket-water temperature is rising on all units and will not hold setpoint - reasons, your actions as 2/E, and telling which side of the cooler is leaking", "cross_family": false } ] }, { "qid": "KOL-2020-06-1535-Q005", "text": "Boiler safety valve adjusting and cross ques, what is the frist thing to do.", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2020-06-1535", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P01-001", "score": 0.7577930092811584, "sibling_score": 0.7577930092811584, "answer_score": null, "sibling_qid": "MUM-2026-03-2935-Q013", "sibling_text": "boiler safety valve setting in presence of surveyor after survey", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.7555131316184998, "sibling_score": 0.7555131316184998, "answer_score": null, "sibling_qid": "KOC-2026-05-0003-Q005", "sibling_text": "boiler safety valve setting procedure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "ECON-EGB-004", "score": 0.7266919016838074, "sibling_score": 0.7266919016838074, "answer_score": 0.5750758349895477, "sibling_qid": "CHE-2026-08-3884-Q001", "sibling_text": "safety valve adjusting procedure and cross", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Safety-valve setting after overhaul & why set higher than the boiler", "cross_family": false } ] }, { "qid": "KOL-2020-06-1536-Q003", "text": "Deaeration tank in boiler? Why deaeration needed? How deaeration is done?", "family": "Boilers - Construction & Components", "subtopic": "Deaerator", "tid": "KOL-2020-06-1536", "tray": "new", "candidates": [ { "answer_id": "FURN-REF-004", "score": 0.5978122353553772, "sibling_score": 0.5978122353553772, "answer_score": null, "sibling_qid": "KOL-2018-12-1434-Q002", "sibling_text": "y collugation added into boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Boiler furnace construction, corrugation, swirl / contraction and furnace mountings", "cross_family": false }, { "answer_id": "BWTEST-C-002", "score": 0.5686994791030884, "sibling_score": 0.5686994791030884, "answer_score": 0.5199205279350281, "sibling_qid": "KOC-2021-07-0920-Q007", "sibling_text": "mechanical o2 scavenging in boiler at wat temp hot well maintained", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Oxygen, hydrazine & sulphite tests — removing the main corrodent", "cross_family": true }, { "answer_id": "SH-332-005", "score": 0.5662103295326233, "sibling_score": 0.5662103295326233, "answer_score": null, "sibling_qid": "KOL-2025-07-1999-Q005", "sibling_text": "attemperator in boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Desuperheater / attemperator: what, why, and superheat control", "cross_family": false } ] }, { "qid": "KOL-2020-06-1886-Q001", "text": "which type of ship .? Engine specifications ?", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "KOL-2020-06-1886", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8420507311820984, "sibling_score": 0.8420507311820984, "answer_score": null, "sibling_qid": "CHE-2026-04-0373-Q001S6", "sibling_text": "type of ship specification of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.7826414704322815, "sibling_score": 0.7826414704322815, "answer_score": null, "sibling_qid": "MUM-2026-04-2675-Q006S5", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "AC-VE-001", "score": 0.7820523977279663, "sibling_score": 0.7820523977279663, "answer_score": null, "sibling_qid": "MUM-2026-01-2904-Q001", "sibling_text": "what type of ship engine power and nomenclature", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Volumetric efficiency: define it, and if it drops how do you improve it (with bumping clearance)?", "cross_family": false } ] }, { "qid": "KOL-2020-06-1886-Q004", "text": "what is the first thg u will do during taking out liner .? If u miss u will damage everything. Told about taking out of quills connection .", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "KOL-2020-06-1886", "tray": "new", "candidates": [ { "answer_id": "CYL-LINER-P03-008", "score": 0.6419501900672913, "sibling_score": 0.6419501900672913, "answer_score": 0.41834873557090757, "sibling_qid": "KOL-2017-07-1852-Q005", "sibling_text": "liner checks after removal", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Main-engine cylinder liner removal — full procedure, the lifting tool, and precautions", "cross_family": false }, { "answer_id": "CYL-LINER-P03-003", "score": 0.638756513595581, "sibling_score": 0.638756513595581, "answer_score": 0.44362487792968747, "sibling_qid": "KOL-2022-03-3529-Q001", "sibling_text": "me liner removal procedure safety cheks how will you remove if its stuck", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Removing a stuck cylinder liner — how, and where do you jack?", "cross_family": false }, { "answer_id": "CYL-LINER-P02-002", "score": 0.6362227201461792, "sibling_score": 0.6362227201461792, "answer_score": null, "sibling_qid": "MUM-2026-05-3238-Q009", "sibling_text": "liner seized how to remove", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L2 · T044-PART_02-G002High", "cross_family": false } ] }, { "qid": "KOL-2020-06-1886-Q005", "text": "properties of oil used in steering gear ? Y high viscosity index .?", "family": "Steering Gear & Hydraulics", "subtopic": "Hydraulic Oil Cleanliness / NAS / ISO Particle Count", "tid": "KOL-2020-06-1886", "tray": "new", "candidates": [ { "answer_id": "CYL-LUB-B-002", "score": 0.6362349390983582, "sibling_score": 0.6362349390983582, "answer_score": 0.46526973247528075, "sibling_qid": "KOC-2022-07-0966-Q012", "sibling_text": "how is the viscosity index for cyl oil", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Cylinder oil — required properties; can any oil be used?", "cross_family": true }, { "answer_id": "LO-TEST-P01-005", "score": 0.6191916465759277, "sibling_score": 0.6191916465759277, "answer_score": 0.49404447376728056, "sibling_qid": "KOC-2026-09-2182-Q012", "sibling_text": "gear oil properties", "sibling_family": "Lube Oil System", "via": "sibling", "answer_title": "Lube-oil properties, types and selection by duty", "cross_family": true }, { "answer_id": "STEER-055-A-002", "score": 0.6171460151672363, "sibling_score": 0.6171460151672363, "answer_score": null, "sibling_qid": "KOL-2020-06-1886-Q002", "sibling_text": "type of steering gear which kind of pump how is direction controlled how is volume of oil controlled", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Steering gear motor and power unit", "cross_family": false } ] }, { "qid": "KOL-2020-06-1886-Q006", "text": "junior engineer tells you the boiler gauge glass water is not showing . Action as second engineer.? Told about dp cell calibration .! Gauge glass blow down .! He asked how will u come to know the water if there even or not .? Said about doing scum blow down if line hot water is there .", "family": "Boilers - Operations & Firing", "subtopic": "Scum / Blow Down", "tid": "KOL-2020-06-1886", "tray": "review", "candidates": [ { "answer_id": "LWL-006", "score": 0.791125476360321, "sibling_score": 0.791125476360321, "answer_score": 0.6153586894273758, "sibling_qid": "KOL-2018-07-3161-Q002", "sibling_text": "boiler gauge glass showing no water what is your action as an independent watch keeper", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "On watch you find no water in the boiler gauge glass. What are your checks and immediate actions? What if both gauge glasses read wrong?", "cross_family": false }, { "answer_id": "SBD-002", "score": 0.7753155827522278, "sibling_score": 0.7753155827522278, "answer_score": null, "sibling_qid": "KOL-2020-09-3348-Q003", "sibling_text": "boiler blowdown gauge glass procedure", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "What is scum blow down and bottom blow down — why and when, the valve opening sequence, and what you check afterwards? How do you instruct the junior engineer or TME?", "cross_family": false }, { "answer_id": "SBD-001", "score": 0.7445390224456787, "sibling_score": 0.7445390224456787, "answer_score": 0.5824827015399933, "sibling_qid": "KOL-2016-11-3017-Q005", "sibling_text": "by bnd oil in boiler gauge glass course of actions", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "You find oil in the boiler gauge glass — causes, how you identify the source, and your actions as 2/E (including if manoeuvring). What is carryover?", "cross_family": false } ] }, { "qid": "KOL-2020-06-2382-Q002", "text": "ICCP ? What is cathodic protection? Explain the working of ICCP.? Components material on anode and cathode ?", "family": "Electrical - ICCP & Cathodic Protection", "subtopic": "ICCP", "tid": "KOL-2020-06-2382", "tray": "review", "candidates": [ { "answer_id": "REF-CELL-002", "score": 0.7163570523262024, "sibling_score": 0.7163570523262024, "answer_score": null, "sibling_qid": "KOL-2024-02-2694-Q002", "sibling_text": "iccp construction in detail how reference anode is generating signal to decide the cathodic protection current", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "How the reference cell measures hull potential and generates the feedback signal", "cross_family": false }, { "answer_id": "SAC-ANODE-002", "score": 0.7006394267082214, "sibling_score": 0.7006394267082214, "answer_score": 0.5499312162399291, "sibling_qid": "MUM-2024-08-0191-Q003", "sibling_text": "sacrificial anode iccp", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "Explain sacrificial-anode protection and compare it with ICCP.", "cross_family": false }, { "answer_id": "ICCP-119-P01-002", "score": 0.6985968351364136, "sibling_score": 0.6985968351364136, "answer_score": null, "sibling_qid": "CHE-2026-04-0370-Q007", "sibling_text": "what is iccp principle of working components of iccp how the hull becomes cathode what is anode how many anodes how it is fitted", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP circuit / control arrangement, construction and main components", "cross_family": false } ] }, { "qid": "KOL-2020-06-2384-Q005", "text": "5 type of protection used in marine motor", "family": "Electrical - Protection & Relays", "subtopic": "Protection / Relays", "tid": "KOL-2020-06-2384", "tray": "review", "candidates": [ { "answer_id": "MNS-020", "score": 0.6664527654647827, "sibling_score": 0.6664527654647827, "answer_score": 0.5362507343292237, "sibling_qid": "KOC-2025-04-1525-Q006", "sibling_text": "types of motor protection", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Motor protections and safeties — the types, and the gangway motor", "cross_family": true }, { "answer_id": "OC-UV-TRIP-005", "score": 0.6445452570915222, "sibling_score": 0.6445452570915222, "answer_score": null, "sibling_qid": "KOC-2026-03-0843-Q013", "sibling_text": "short circuit protections onboard", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Short-circuit and overcurrent protection arrangement", "cross_family": false }, { "answer_id": "IMSP-007", "score": 0.6417423486709595, "sibling_score": 0.6417423486709595, "answer_score": 0.5320282995700836, "sibling_qid": "MUM-2026-05-3171-Q005", "sibling_text": "motor protection", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What safeties and protections are provided in an induction motor and its starter — overload, short-circuit, thermal? What about a motor on deck, and large three-phase motors?", "cross_family": true } ] }, { "qid": "KOL-2020-06-3339-Q001", "text": "Overhauling of improve high lift safety valve and things to be checked.", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2020-06-3339", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.8066697716712952, "sibling_score": 0.8066697716712952, "answer_score": null, "sibling_qid": "KOC-2026-02-1106-Q007", "sibling_text": "improved high lift safety valve overhaul and checks", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.7035707235336304, "sibling_score": 0.7035707235336304, "answer_score": null, "sibling_qid": "KOL-2026-01-3900-Q005", "sibling_text": "check on safety valve during overhaul", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "ECON-EGB-004", "score": 0.5261677980422973, "sibling_score": null, "answer_score": 0.5261677980422973, "sibling_qid": "", "sibling_text": "safety valve setting after overhaul why set higher than the boiler setting raise pressure under steam on a calibrated gauge adjust spring compression to lift at the approved set pressure verify re seat and blowdown two valves one at a time the other gagged lock and seal surveyor witnessed values are class approved ship specific set pressure accumulation representative limit and blowdown quote the ", "sibling_family": "", "via": "answer_title", "answer_title": "Safety-valve setting after overhaul & why set higher than the boiler", "cross_family": false } ] }, { "qid": "KOL-2020-06-3340-Q008", "text": "destructive tests .? Types .? Name of individual machines .? About bend test .? What properties will the checked of the material through bend test .?", "family": "NDT & Material Testing", "subtopic": "Impact / Charpy", "tid": "KOL-2020-06-3340", "tray": "review", "candidates": [ { "answer_id": "MATPROP-A-006", "score": 0.7742145657539368, "sibling_score": 0.7742145657539368, "answer_score": 0.636622804403305, "sibling_qid": "KOL-2020-06-1535-Q007", "sibling_text": "bent test how to do bent test", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Destructive and material tests", "cross_family": false }, { "answer_id": "DBT-490-003", "score": 0.7209076285362244, "sibling_score": 0.7209076285362244, "answer_score": null, "sibling_qid": "MUM-2026-06-3367-Q010", "sibling_text": "which test for ductile to brittle", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Ductile-to-brittle transition and transition temperature", "cross_family": false }, { "answer_id": "NDT-METH-P01-001", "score": 0.7127147912979126, "sibling_score": 0.7127147912979126, "answer_score": null, "sibling_qid": "KOC-2025-04-1910-Q004", "sibling_text": "different types of material testing both destructive and ndt what is yield strength", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "NDT methods, NDT vs destructive testing, and onboard use", "cross_family": false } ] }, { "qid": "KOL-2020-06-3981-Q006", "text": "Boiler safety valve drain pipe purpose? New development of safety valve, cross about waste steam piston, floating ring and lip clearance. MEP::", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2020-06-3981", "tray": "review", "candidates": [ { "answer_id": "MR-DS-PV-B-006", "score": 0.716244101524353, "sibling_score": 0.716244101524353, "answer_score": null, "sibling_qid": "KOC-2026-09-2180-Q009", "sibling_text": "full bore safety valve construction", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "6. Deck isolating valve, deck relief/safety devices, and cargo-tank pressure", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.7143064141273499, "sibling_score": 0.7143064141273499, "answer_score": null, "sibling_qid": "MUM-2026-01-1242-Q010", "sibling_text": "boiler safety valve type and what is left of safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACRV-005", "score": 0.7119428515434265, "sibling_score": 0.7119428515434265, "answer_score": null, "sibling_qid": "MUM-2026-03-1001-Q003", "sibling_text": "boiler safety valve blowdown", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": false } ] }, { "qid": "KOL-2020-06-3981-Q009", "text": "Rudder breached how to repair? How to paint inside of rudder.", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Painting", "tid": "KOL-2020-06-3981", "tray": "review", "candidates": [ { "answer_id": "HULL-PAINT-002", "score": 0.724002480506897, "sibling_score": 0.724002480506897, "answer_score": null, "sibling_qid": "CHE-2026-02-0110-Q012", "sibling_text": "rudder internal painting", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Types of hull coating, the paint scheme by section, and why each is used", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.724002480506897, "sibling_score": 0.724002480506897, "answer_score": null, "sibling_qid": "MUM-2026-05-3150-Q003", "sibling_text": "rudder internal painting", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "WBS-C-006", "score": 0.5283556699752807, "sibling_score": null, "answer_score": 0.5283556699752807, "sibling_qid": "", "sibling_text": "propeller and rudder repair grading the damage and the class approved route grade the damage first minor nicks erosion bent tip vs crack major minor grind and blend out the notch restore a fair section keep balance small cold repair epoxy fillers for minor surface defects only", "sibling_family": "", "via": "answer_title", "answer_title": "Propeller and rudder repair — grading the damage and the Class-approved route", "cross_family": false } ] }, { "qid": "KOL-2020-06-3981-Q011", "text": "What is eddy plate and construction?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2020-06-3981", "tray": "new", "candidates": [ { "answer_id": "FSE-P02-002", "score": 0.3837694227695465, "sibling_score": 0.3837694227695465, "answer_score": null, "sibling_qid": "MUM-2026-09-3994-Q001", "sibling_text": "solid plate", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Constructional arrangements in tanks and tankers that reduce FSE", "cross_family": true }, { "answer_id": "SHELL-PLT-B-002", "score": 0.3823533356189728, "sibling_score": 0.3823533356189728, "answer_score": 0.3091445714235306, "sibling_qid": "KOL-2025-09-1046-Q002", "sibling_text": "steeler plate", "sibling_family": "", "via": "sibling", "answer_title": "Stealer plate and strake nesting", "cross_family": false }, { "answer_id": "EDDY-CUR-002", "score": 0.37244674265384675, "sibling_score": null, "answer_score": 0.37244674265384675, "sibling_qid": "", "sibling_text": "how are eddy currents formed and how are they minimized formation changing flux linkage induced emf faraday closed current loops in the conducting mass in planes perpendicular to the flux laminate thin insulated sheets stacked parallel to the flux loss t sheet thickness representatively 0 35 0 5 mm set by the maker s design", "sibling_family": "", "via": "answer_title", "answer_title": "How are eddy currents formed, and how are they minimized?", "cross_family": false } ] }, { "qid": "KOL-2020-07-0417-Q005", "text": "AIS...details..", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "KOL-2020-07-0417", "tray": "new", "candidates": [ { "answer_id": "ISM-ELEM-002", "score": 0.4400779604911804, "sibling_score": 0.4400779604911804, "answer_score": null, "sibling_qid": "MUM-2026-02-0790-Q002", "sibling_text": "ism full details", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the ISM Code?", "cross_family": true }, { "answer_id": "ISPS-OV-001", "score": 0.4361892640590668, "sibling_score": 0.4361892640590668, "answer_score": null, "sibling_qid": "MUM-2025-09-0453-Q001", "sibling_text": "isps code in detail", "sibling_family": "ISPS", "via": "sibling", "answer_title": "ISPS Code: what it is, structure and key elements", "cross_family": true }, { "answer_id": "EPIRB-SART-002", "score": 0.43451398015022275, "sibling_score": 0.43143391609191895, "answer_score": 0.43451398015022275, "sibling_qid": "CHE-2026-05-0542-Q001", "sibling_text": "ais sart", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "answer_title", "answer_title": "What is an AIS-SART and how does it differ from a radar SART?", "cross_family": true } ] }, { "qid": "KOL-2020-07-0418-Q007", "text": "Safety equipment survey what you will do", "family": "Surveys - Statutory", "subtopic": "Safety Equipment Survey", "tid": "KOL-2020-07-0418", "tray": "review", "candidates": [ { "answer_id": "SEQ-330-001", "score": 0.6987339854240417, "sibling_score": 0.6987339854240417, "answer_score": 0.4487064719200134, "sibling_qid": "KOL-2019-11-0350-Q002", "sibling_text": "safety equipment survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Safety Equipment survey — what it is, its scope, and what is checked", "cross_family": false }, { "answer_id": "ELEC-SURV-006", "score": 0.6231045722961426, "sibling_score": 0.6231045722961426, "answer_score": null, "sibling_qid": "KOL-2019-07-2304-Q001", "sibling_text": "emergency equipment survey is due as a second engineer what will be your approach", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Emergency electrical equipment — survey preparation", "cross_family": false }, { "answer_id": "ELEC-SURV-002", "score": 0.6209473013877869, "sibling_score": 0.6209473013877869, "answer_score": null, "sibling_qid": "MUM-2026-06-3519-Q003", "sibling_text": "in safety equipment survey what all thing will be checked for electrical components", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Survey checks & engine-room electrical inspection", "cross_family": false } ] }, { "qid": "KOL-2020-07-0418-Q015", "text": "Who issue enclosed space permit", "family": "Risk & Safety Management", "subtopic": "Enclosed Space Entry", "tid": "KOL-2020-07-0418", "tray": "review", "candidates": [ { "answer_id": "ESE-P01-003", "score": 0.7102214097976685, "sibling_score": 0.7102214097976685, "answer_score": 0.48098953962326046, "sibling_qid": "NOI-2026-09-0021-Q007", "sibling_text": "enclosed space permit in details", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "General enclosed-space entry procedure as second engineer", "cross_family": false }, { "answer_id": "ESE-P01-001", "score": 0.6063452363014221, "sibling_score": 0.6063452363014221, "answer_score": 0.4121016427874565, "sibling_qid": "MUM-2026-05-3182-Q003", "sibling_text": "enclosed space definition", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "Definition and criteria of an enclosed space", "cross_family": false }, { "answer_id": "ESE-P01-006", "score": 0.4443556547164917, "sibling_score": null, "answer_score": 0.4443556547164917, "sibling_qid": "", "sibling_text": "permit sms permission and in charge control for entry permit to work issued by the master or a responsible person nominated by the master a company authorised management level officer names the space readings isolation standby and a validity never longer than 8 hours void if ventilation stops conditions change or the space is left unattended the sms is mandatory under the ism code solas chapter ix", "sibling_family": "", "via": "answer_title", "answer_title": "Permit, SMS, permission and in-charge control for entry", "cross_family": false } ] }, { "qid": "KOL-2020-07-1538-Q002", "text": "1 type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2020-07-1538", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.7505972385406494, "sibling_score": 0.7505972385406494, "answer_score": null, "sibling_qid": "MUM-2026-03-0813-Q001", "sibling_text": "type of ship why only one function", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.74879390001297, "sibling_score": 0.74879390001297, "answer_score": 0.4700445055961609, "sibling_qid": "CHE-2026-05-0614-Q001", "sibling_text": "start from type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.7340776324272156, "sibling_score": 0.7340776324272156, "answer_score": 0.47529339194297787, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "KOL-2020-07-1541-Q001", "text": "Which engine", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOL-2020-07-1541", "tray": "review", "candidates": [ { "answer_id": "MIP-264-003", "score": 0.732064425945282, "sibling_score": 0.732064425945282, "answer_score": null, "sibling_qid": "MUM-2026-01-1248-Q002", "sibling_text": "engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Calculate engine power: IHP and BHP, and where each is measured", "cross_family": false }, { "answer_id": "ETP-344-P03-001", "score": 0.7005857825279236, "sibling_score": 0.7005857825279236, "answer_score": null, "sibling_qid": "KOL-2026-03-2048-Q001", "sibling_text": "type of engine done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.6842483878135681, "sibling_score": 0.6842483878135681, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false } ] }, { "qid": "KOL-2020-07-1541-Q005", "text": "Bearing clearance", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "", "tid": "KOL-2020-07-1541", "tray": "review", "candidates": [ { "answer_id": "BCL-592-002", "score": 0.8038456439971924, "sibling_score": 0.8038456439971924, "answer_score": null, "sibling_qid": "MUM-2025-08-1162-Q009", "sibling_text": "explain all bearing clearances", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Take me through all the clearances you measure on the main engine and how you take each one.", "cross_family": false }, { "answer_id": "MN-BRG-C-003", "score": 0.7943302989006042, "sibling_score": 0.7943302989006042, "answer_score": null, "sibling_qid": "KOC-2026-02-2000-Q002", "sibling_text": "main bearing clearance", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main bearing clearance and wear-down: measuring and interpreting", "cross_family": false }, { "answer_id": "THR-BRG-A-001", "score": 0.7908322811126709, "sibling_score": 0.7908322811126709, "answer_score": null, "sibling_qid": "KOC-2024-02-1833-Q004", "sibling_text": "thrust bearing clearance", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you check, measure, limit and adjust main-engine thrust bearing clearance?", "cross_family": false } ] }, { "qid": "KOL-2020-07-1541-Q007", "text": "How to vent", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Common Rail", "tid": "KOL-2020-07-1541", "tray": "new", "candidates": [ { "answer_id": "VENT-HD-005", "score": 0.5195509791374207, "sibling_score": 0.5195509791374207, "answer_score": null, "sibling_qid": "MUM-2026-06-3566-Q003", "sibling_text": "vent head", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Inspections and maintenance on tank vent heads", "cross_family": false }, { "answer_id": "MAST-PVA-001", "score": 0.48846039175987244, "sibling_score": 0.48846039175987244, "answer_score": null, "sibling_qid": "KOC-2024-04-1838-Q005", "sibling_text": "primary and secondary means of venting procedure", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Cargo tank venting — primary & secondary means and the regulation", "cross_family": true }, { "answer_id": "VENT-HD-006", "score": 0.486342191696167, "sibling_score": 0.486342191696167, "answer_score": 0.34846729338169097, "sibling_qid": "KOL-2017-03-0065-Q003", "sibling_text": "explain do tank vent", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Tank vent / air-pipe arrangement, and why tanks require ventilation", "cross_family": true } ] }, { "qid": "KOL-2020-07-1541-Q008", "text": "Tribo pack", "family": "2-Stroke - Components (Other)", "subtopic": "Piston Rings", "tid": "KOL-2020-07-1541", "tray": "new", "candidates": [ { "answer_id": "SPAB-330-001", "score": 0.4780115783214569, "sibling_score": 0.4780115783214569, "answer_score": 0.22240687906742096, "sibling_qid": "MUM-2025-06-0328-Q006", "sibling_text": "solas a pack and b pack", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "SOLAS Pack A and Pack B in liferafts — what they are and the difference", "cross_family": true }, { "answer_id": "SB-PRG-B-005", "score": 0.46518954634666443, "sibling_score": 0.46518954634666443, "answer_score": null, "sibling_qid": "CHE-2025-12-0460-Q008", "sibling_text": "why 3 packs in scrapper ring why not 2", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Ring set, segment identification, checks and clearances", "cross_family": false }, { "answer_id": "SOLAS-CH-003", "score": 0.4552200138568878, "sibling_score": 0.4552200138568878, "answer_score": null, "sibling_qid": "MUM-2025-11-0553-Q004", "sibling_text": "solas pack a b", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "SOLAS Chapter II-2 - fire protection, detection and extinction", "cross_family": true } ] }, { "qid": "KOL-2020-07-3342-Q003", "text": "Fwg no vacuum", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "KOL-2020-07-3342", "tray": "new", "candidates": [ { "answer_id": "FWG-RO-001", "score": 0.6270656585693359, "sibling_score": 0.6270656585693359, "answer_score": 0.38389264047145844, "sibling_qid": "MUM-2024-06-1081-Q006", "sibling_text": "fwg vaccum not coming", "sibling_family": "Fresh Water & Domestic Systems", "via": "sibling", "answer_title": "How is vacuum created in the FWG, why does it run under vacuum, and what if the vacuum will not come?", "cross_family": true }, { "answer_id": "FWG-RO-003", "score": 0.545490562915802, "sibling_score": 0.545490562915802, "answer_score": 0.3103037118911743, "sibling_qid": "CHE-2026-05-0533-Q008", "sibling_text": "checks if fwg not getting production", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "The FWG is not producing enough water or its efficiency has dropped. Reasons, checks and action?", "cross_family": false }, { "answer_id": "HULL-PAINT-001", "score": 0.4741138815879822, "sibling_score": 0.4741138815879822, "answer_score": null, "sibling_qid": "MUM-2026-05-3247-Q009", "sibling_text": "fwg chemical cleaning if no chemical is available what you can use", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Preparing the hull surface before painting in dry dock — cleanliness standard and methods", "cross_family": false } ] }, { "qid": "KOL-2020-08-1542-Q006", "text": "Bearing defects, How they are caused", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "", "tid": "KOL-2020-08-1542", "tray": "review", "candidates": [ { "answer_id": "WMAT-170-007", "score": 0.7472118735313416, "sibling_score": 0.7472118735313416, "answer_score": null, "sibling_qid": "KOL-2022-10-1714-Q005", "sibling_text": "defects in bearing corrosion crack bulging wipe out", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Tin-oxide corrosion of white metal and its prevention", "cross_family": false }, { "answer_id": "WMAT-170-001", "score": 0.6637775301933289, "sibling_score": 0.6637775301933289, "answer_score": null, "sibling_qid": "KOL-2016-11-1838-Q013", "sibling_text": "white metal bearing defects", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "White metal (Babbitt): composition, purpose, properties, layer thickness", "cross_family": false }, { "answer_id": "MAIN-BRG-D-001", "score": 0.6513564586639404, "sibling_score": 0.6513564586639404, "answer_score": 0.512838163971901, "sibling_qid": "MUM-2026-05-3217-Q005", "sibling_text": "main bearing defects and what are indications", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main bearing damage and wear — causes, indications, effects", "cross_family": false } ] }, { "qid": "KOL-2020-08-3344-Q001", "text": "How you clean a hot oil filter. Procedure for changeover? Safety precautions during changeover? Single most important thing to be done before purging?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "LO Cooler", "tid": "KOL-2020-08-3344", "tray": "review", "candidates": [ { "answer_id": "FLT-BF052-003", "score": 0.680395245552063, "sibling_score": 0.680395245552063, "answer_score": 0.6200069546699524, "sibling_qid": "KOL-2018-03-3125-Q002", "sibling_text": "hot filter cleaning procedure how to isolate it and cross questions", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How do you change over and clean a hot fuel filter, and how do you isolate it?", "cross_family": true }, { "answer_id": "LOF-359-006", "score": 0.6773608326911926, "sibling_score": 0.6773608326911926, "answer_score": null, "sibling_qid": "MUM-2023-09-2192-Q004", "sibling_text": "me lube oil filter opened for cleaning n metal particles found wat actions 2 3 more questions dont remember", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Metal Particles Found in ME Lube-Oil Filter — Immediate Actions", "cross_family": false }, { "answer_id": "COW-593-008", "score": 0.6723494529724121, "sibling_score": 0.6723494529724121, "answer_score": null, "sibling_qid": "MUM-2026-03-0807-Q003", "sibling_text": "crude oil washing checks before starting", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "What checks and requirements must be met before starting COW?", "cross_family": true } ] }, { "qid": "KOL-2020-08-3345-Q004", "text": "What is the function of back pressure valve in refer system .", "family": "Refrigeration & AC", "subtopic": "Back Pressure Valve", "tid": "KOL-2020-08-3345", "tray": "review", "candidates": [ { "answer_id": "BPV-315-001", "score": 0.7195138335227966, "sibling_score": 0.7195138335227966, "answer_score": 0.5351135313510894, "sibling_qid": "KOL-2025-03-1972-Q005", "sibling_text": "back pressure valve function", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Back pressure valve — purpose, location and operation", "cross_family": false }, { "answer_id": "BPV-315-005", "score": 0.7162654995918274, "sibling_score": 0.7162654995918274, "answer_score": 0.496883225440979, "sibling_qid": "KOL-2026-02-1830-Q004", "sibling_text": "ref equalizer line back pressure valve", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Equalising line and the back pressure valve", "cross_family": false }, { "answer_id": "BPV-315-006", "score": 0.48764728903770443, "sibling_score": null, "answer_score": 0.48764728903770443, "sibling_qid": "", "sibling_text": "where the back pressure valve fits in a provision plant sketch", "sibling_family": "", "via": "answer_title", "answer_title": "Where the back pressure valve fits in a provision plant (sketch)", "cross_family": false } ] }, { "qid": "KOL-2020-09-0420-Q003", "text": "Flare of ship from where it originates", "family": "", "subtopic": "Bulbous Bow", "tid": "KOL-2020-09-0420", "tray": "new", "candidates": [ { "answer_id": "LLST-AB-001", "score": 0.5600907802581787, "sibling_score": 0.5600907802581787, "answer_score": null, "sibling_qid": "CHE-2026-05-0614-Q001", "sibling_text": "start from type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "KGF-A-004", "score": 0.5244671106338501, "sibling_score": 0.5244671106338501, "answer_score": null, "sibling_qid": "KOC-2024-08-0399-Q001", "sibling_text": "mid ship section of your last ship", "sibling_family": "", "via": "sibling", "answer_title": "Hull / midship cross-section: draw & identify", "cross_family": false }, { "answer_id": "TPC-FWA-002", "score": 0.5162146091461182, "sibling_score": 0.5162146091461182, "answer_score": null, "sibling_qid": "MUM-2025-09-2843-Q006", "sibling_text": "tpc if ship goes to fw from sw", "sibling_family": "", "via": "sibling", "answer_title": "TPC change between fresh and salt water, and the effect on trim", "cross_family": false } ] }, { "qid": "KOL-2020-09-0421-Q004", "text": "solid ballast", "family": "", "subtopic": "GM / KM / KB / Metacentric", "tid": "KOL-2020-09-0421", "tray": "new", "candidates": [ { "answer_id": "BWM-D1D2-P03-001", "score": 0.5626610517501831, "sibling_score": 0.5626610517501831, "answer_score": null, "sibling_qid": "KOC-2022-09-0099-Q007", "sibling_text": "ballast d2 standard", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Regulation D-2 — ballast water performance / discharge standardHigh", "cross_family": false }, { "answer_id": "COT-14", "score": 0.555733323097229, "sibling_score": 0.555733323097229, "answer_score": null, "sibling_qid": "KOL-2026-07-4253-Q003", "sibling_text": "segregated ballast and and capacity", "sibling_family": "Ship Construction", "via": "sibling", "answer_title": "SBT applicability, capacity and draught criteria", "cross_family": false }, { "answer_id": "COT-13", "score": 0.5417121052742004, "sibling_score": 0.5417121052742004, "answer_score": null, "sibling_qid": "KOL-2025-08-1026-Q002", "sibling_text": "open ballast", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Segregated, clean, dedicated and open ballast", "cross_family": false } ] }, { "qid": "KOL-2020-09-0421-Q007", "text": "ro nd classification society", "family": "Surveys - Statutory", "subtopic": "Class Notation", "tid": "KOL-2020-09-0421", "tray": "review", "candidates": [ { "answer_id": "IACS-324-003", "score": 0.7609125971794128, "sibling_score": 0.7609125971794128, "answer_score": null, "sibling_qid": "KOC-2023-08-0216-Q007", "sibling_text": "what is ro how classification society become ro", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "3. What is a Recognized Organization, how is it recognized by a flag State, and how can a classification society become one?", "cross_family": false }, { "answer_id": "PSC-SURV-P01-003", "score": 0.7328614592552185, "sibling_score": 0.7328614592552185, "answer_score": 0.4438647210597992, "sibling_qid": "KOL-2026-08-4162-Q005", "sibling_text": "difference between classification society and r o", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the difference between a Recognised Organisation (RO) and a classification society?", "cross_family": false }, { "answer_id": "IACS-324-005", "score": 0.7222319841384888, "sibling_score": 0.7222319841384888, "answer_score": 0.38682886958122253, "sibling_qid": "CHE-2026-04-0161-Q006", "sibling_text": "difference between classification society and ro", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "5. What is the difference between a classification society, a Recognized Organization, and statutory certification?", "cross_family": false } ] }, { "qid": "KOL-2020-09-0425-Q002", "text": "ORB entries for bunkering,what to do if you forget to make entry for bunkering", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "KOL-2020-09-0425", "tray": "new", "candidates": [ { "answer_id": "ORB-IOPP-OWS-005", "score": 0.6468717455863953, "sibling_score": 0.6468717455863953, "answer_score": 0.5222212791442871, "sibling_qid": "KOC-2026-05-0036-Q007", "sibling_text": "missed bunker entry how to add missed entry", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "A missed bunker entry — how to add it, and how that differs from correcting a wrong entry", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-004", "score": 0.5816885232925415, "sibling_score": 0.5816885232925415, "answer_score": 0.4090239346027374, "sibling_qid": "KOC-2026-02-0805-Q007", "sibling_text": "weekly entries of orb code item no bunker missed entry", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Weekly ORB entries — the mandatory sludge retention record, the bunker entry, and what is voluntary", "cross_family": false }, { "answer_id": "OWS-ORB-006", "score": 0.5142507553100586, "sibling_score": 0.5142507553100586, "answer_score": null, "sibling_qid": "KOL-2026-03-1197-Q005", "sibling_text": "orb bunkering codes and details where to mention lube oil received in bulk and lube oil received in drums", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "6. Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": false } ] }, { "qid": "KOL-2020-09-0425-Q003", "text": "Gusset stay", "family": "Boilers - Construction & Components", "subtopic": "Ogee Ring", "tid": "KOL-2020-09-0425", "tray": "new", "candidates": [ { "answer_id": "OGEE-RING-001", "score": 0.5399920344352722, "sibling_score": 0.5399920344352722, "answer_score": null, "sibling_qid": "KOC-2022-01-0954-Q007", "sibling_text": "gusset stay ogee ring", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "The ogee ring: what it is, where it sits, its purpose, and how it's formed and connected", "cross_family": false }, { "answer_id": "FWFB-P02-001", "score": 0.4323357045650482, "sibling_score": 0.4323357045650482, "answer_score": 0.29771508872509, "sibling_qid": "MUM-2022-10-0061-Q005", "sibling_text": "gusset plate where used", "sibling_family": "", "via": "sibling", "answer_title": "Brackets, knees and gusset plates", "cross_family": false }, { "answer_id": "HATCH-COAM-005", "score": 0.38311731815338135, "sibling_score": 0.38311731815338135, "answer_score": 0.3089825987815857, "sibling_qid": "KOC-2026-02-0799-Q006", "sibling_text": "hatch coming coming stay", "sibling_family": "", "via": "sibling", "answer_title": "What supports, stays or strengthening members are provided for hatch coamings and large hatch openings?", "cross_family": false } ] }, { "qid": "KOL-2020-09-1544-Q004", "text": "which compressor - tell about tandem type compressor and it's advantages ...safeties on compressor", "family": "Air Compressor", "subtopic": "Reciprocating Compressor", "tid": "KOL-2020-09-1544", "tray": "new", "candidates": [ { "answer_id": "ACSS-003", "score": 0.6190932393074036, "sibling_score": 0.6190932393074036, "answer_score": 0.43966356515884397, "sibling_qid": "KOC-2025-11-1970-Q001", "sibling_text": "main air compressor working advntages of multistages what all are the safeties provided on compressor reasons for lifting of safety valves", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Multistage working, cooling, stage arrangement and stage faults", "cross_family": false }, { "answer_id": "AC-STAGE-001", "score": 0.5853137373924255, "sibling_score": 0.5853137373924255, "answer_score": 0.479431015253067, "sibling_qid": "KOL-2017-03-3039-Q005", "sibling_text": "air compressor why multi stage why intetcooler why air passes through tubes not in the casing surrounding the tubes of the cooler why bursting disc is given material", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Why multistage compression — advantages over single-stage", "cross_family": false }, { "answer_id": "ACSS-002", "score": 0.5713661313056946, "sibling_score": 0.5713661313056946, "answer_score": null, "sibling_qid": "KOL-2022-02-1660-Q004", "sibling_text": "compressor safeties prolonged running of air compressor reasons", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Relief / safety valves: settings, testing, lifting reasons; bursting disc", "cross_family": false } ] }, { "qid": "KOL-2020-09-1545-Q002", "text": "Generator l.o system.", "family": "Lube Oil System", "subtopic": "Fault Diagnosis / 2E Action", "tid": "KOL-2020-09-1545", "tray": "new", "candidates": [ { "answer_id": "SYNC-C-001", "score": 0.470238596200943, "sibling_score": 0.470238596200943, "answer_score": null, "sibling_qid": "KOC-2022-09-1194-Q015", "sibling_text": "how to put generator onload", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Paralleling generators — procedure, conditions and practical checks", "cross_family": true }, { "answer_id": "ALT-GEN-P02-001", "score": 0.45896753668785095, "sibling_score": 0.45896753668785095, "answer_score": null, "sibling_qid": "KOC-2022-12-0121-Q002", "sibling_text": "generator spec", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Alternator/generator specifications, ratings and ship electrical supply details", "cross_family": true }, { "answer_id": "ALT-GEN-P01-002", "score": 0.4546850025653839, "sibling_score": 0.4546850025653839, "answer_score": 0.26906105428934096, "sibling_qid": "MUM-2024-03-1079-Q004", "sibling_text": "type of generator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "2. Types of generator/alternator carried onboard", "cross_family": true } ] }, { "qid": "KOL-2020-09-1548-Q009", "text": "reverse osmosis...what is the principal...what is Osmosis...what is the most critical process of reverse filtration...I didn't know much about reverse osmosis plant of ships...I guessed filtration of the water before entering into plant..he agreed.", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "KOL-2020-09-1548", "tray": "review", "candidates": [ { "answer_id": "FWG-RO-006", "score": 0.7286784052848816, "sibling_score": 0.7286784052848816, "answer_score": 0.6167476922273636, "sibling_qid": "MUM-2023-06-2736-Q001S4", "sibling_text": "reverse osmosis principle and flow chart explanation", "sibling_family": "Fresh Water & Domestic Systems", "via": "sibling", "answer_title": "Explain reverse osmosis — the principle and flow, pre- and post-treatment, and what chemical is dosed before the RO.", "cross_family": true }, { "answer_id": "RVSG-213-001", "score": 0.638080358505249, "sibling_score": 0.638080358505249, "answer_score": null, "sibling_qid": "KOL-2022-10-1713-Q005", "sibling_text": "rotary vane system and vane material rao difference bw osmosis n reverse osmosis", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Construction, main parts, materials & vane fitment", "cross_family": true }, { "answer_id": "LOF-359-003", "score": 0.5366610884666443, "sibling_score": 0.5366610884666443, "answer_score": null, "sibling_qid": "KOC-2026-04-1125-Q002", "sibling_text": "autobackwash filter working and what happens during backwashing process", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Automatic Backwash (Back-Flush) Filter — Working", "cross_family": true } ] }, { "qid": "KOL-2020-09-1548-Q010", "text": "rest 2 I forgot.\tI wl update if I remember..", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOL-2020-09-1548", "tray": "new", "candidates": [ { "answer_id": "VIB-BAL-B-003", "score": 0.4757341146469116, "sibling_score": 0.4757341146469116, "answer_score": null, "sibling_qid": "KOL-2018-08-0204-Q006", "sibling_text": "not remember", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Torsional vibration: what it is, what causes it, how it is controlled", "cross_family": true }, { "answer_id": "VIT-MECH-B-002", "score": 0.46956419944763184, "sibling_score": 0.46956419944763184, "answer_score": null, "sibling_qid": "MUM-2025-11-2491-Q009", "sibling_text": "vit how to vit adjust some question forgot", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How VIT is adjusted and set — timing and fuel-quality (FQS) interactions", "cross_family": true }, { "answer_id": "SBD-002", "score": 0.4660072922706604, "sibling_score": 0.4660072922706604, "answer_score": null, "sibling_qid": "KOL-2023-01-1722-Q005", "sibling_text": "blr bottom blow down when you will why you will do rest i forgot", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "What is scum blow down and bottom blow down — why and when, the valve opening sequence, and what you check afterwards? How do you instruct the junior engineer or TME?", "cross_family": true } ] }, { "qid": "KOL-2020-09-1550-Q004", "text": "Axial flow pump advantage n uses", "family": "Pumps - Centrifugal & PD", "subtopic": "Axial Flow Pump", "tid": "KOL-2020-09-1550", "tray": "review", "candidates": [ { "answer_id": "HSAP-583-A-013", "score": 0.7442222237586975, "sibling_score": 0.7442222237586975, "answer_score": 0.576563885807991, "sibling_qid": "KOL-2020-02-0390-Q012", "sibling_text": "why axial flow pumps are used", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "\"Why are axial flow pumps used?\"", "cross_family": false }, { "answer_id": "HSAP-B-002", "score": 0.6736602187156677, "sibling_score": 0.6736602187156677, "answer_score": null, "sibling_qid": "CHE-2025-12-0226-Q006", "sibling_text": "hps system type of pump used why axial and radial flow pumps difference", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Hele-Shaw versus swash-plate — the real differences, suction and discharge in each, and the bent-axis cousin", "cross_family": false }, { "answer_id": "PUMP-CAS-002", "score": 0.6593909859657288, "sibling_score": 0.6593909859657288, "answer_score": null, "sibling_qid": "KOL-2017-07-2143-Q003", "sibling_text": "large pumps what take radial thrust", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "02. Double-volute casing — why it is used, which thrust it balances, and the clearance in question", "cross_family": false } ] }, { "qid": "KOL-2020-09-1550-Q007", "text": "Type of ship n engine details.", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "KOL-2020-09-1550", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P01-001", "score": 0.8115764260292053, "sibling_score": 0.8115764260292053, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q001", "sibling_text": "type of ship sailed and engines details", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.8081540465354919, "sibling_score": 0.8081540465354919, "answer_score": null, "sibling_qid": "CHE-2026-04-0373-Q001S6", "sibling_text": "type of ship specification of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "AC-VE-001", "score": 0.7461591958999634, "sibling_score": 0.7461591958999634, "answer_score": null, "sibling_qid": "MUM-2026-01-2904-Q001", "sibling_text": "what type of ship engine power and nomenclature", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Volumetric efficiency: define it, and if it drops how do you improve it (with bumping clearance)?", "cross_family": false } ] }, { "qid": "KOL-2020-09-2387-Q003", "text": "Then some qus from automation I didn't remember", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOL-2020-09-2387", "tray": "new", "candidates": [ { "answer_id": "AUC-ALM-01", "score": 0.5108060240745544, "sibling_score": 0.5108060240745544, "answer_score": 0.345676976442337, "sibling_qid": "CHE-2026-02-0244-Q005", "sibling_text": "how automation", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "What is automation on a ship, how does a basic automated control system work, and what are its principal advantages and disadvantages?", "cross_family": true }, { "answer_id": "CTRL-007", "score": 0.4864877462387085, "sibling_score": 0.4864877462387085, "answer_score": 0.3411579042673111, "sibling_qid": "KOC-2025-07-1547-Q009", "sibling_text": "explain any automation process", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Explain an automatic controller / automation process onboard", "cross_family": true }, { "answer_id": "EXHV-P03-009", "score": 0.42907559871673584, "sibling_score": 0.42907559871673584, "answer_score": null, "sibling_qid": "KOC-2024-11-1879-Q003", "sibling_text": "what is roto cap and its function 2 more questions i don t remember 4b repeat function 6 pass", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Roto-cap — what it is and its function", "cross_family": true } ] }, { "qid": "KOL-2020-09-2391-Q004", "text": "Zener voltage..and related cross regarding instrinc safe equipment.?", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOL-2020-09-2391", "tray": "review", "candidates": [ { "answer_id": "HAZ-EX-B-001", "score": 0.7187042832374573, "sibling_score": 0.7187042832374573, "answer_score": null, "sibling_qid": "KOL-2017-05-2127-Q001", "sibling_text": "intrinsically safe circuit where used zener in detail", "sibling_family": "", "via": "sibling", "answer_title": "Intrinsically safe (Ex i) equipment — what it is, how it works, where it is used, how you identify it", "cross_family": false }, { "answer_id": "FSF-BF073-004", "score": 0.7106563448905945, "sibling_score": 0.7106563448905945, "answer_score": null, "sibling_qid": "CHE-2026-03-0359-Q001", "sibling_text": "zener diode zener barrier working in intrinsically safe", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a magnetic fail safe?", "cross_family": false }, { "answer_id": "EPC-P02-03", "score": 0.6484780311584473, "sibling_score": 0.6484780311584473, "answer_score": 0.5166124761104584, "sibling_qid": "KOL-2021-08-2486-Q002", "sibling_text": "zener diode function and usage and cross", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Where is a zener diode used on board and why — voltage regulator, AVR, clipper — and explain one application in detail.", "cross_family": false } ] }, { "qid": "KOL-2020-09-2393-Q005", "text": "Alternator protection", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator Protection", "tid": "KOL-2020-09-2393", "tray": "review", "candidates": [ { "answer_id": "ALT-GEN-P01-001", "score": 0.8315341472625732, "sibling_score": 0.8315341472625732, "answer_score": 0.5855846524238586, "sibling_qid": "MUM-2026-07-3800-Q005", "sibling_text": "protection inside alternator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Alternator/generator safeties and protection trips", "cross_family": false }, { "answer_id": "OC-UV-TRIP-006", "score": 0.5685772716999054, "sibling_score": null, "answer_score": 0.5685772716999054, "sibling_qid": "", "sibling_text": "trip settings and combined overcurrent undervoltage protection alternator context alternator protection is a suite overcurrent short circuit ansi 50 51 reverse power 32 under voltage 27 over under frequency 81 earth fault 50n 51n and differential 87 on larger machines reverse power trips to prevent the alternator motoring when its prime mover loses drive protects the engine and the bus", "sibling_family": "", "via": "answer_title", "answer_title": "Trip settings and combined overcurrent / undervoltage protection — alternator context", "cross_family": false }, { "answer_id": "ALT-MTN-B-001", "score": 0.5462796628475189, "sibling_score": null, "answer_score": 0.5462796628475189, "sibling_qid": "", "sibling_text": "routine onboard alternator maintenance checks clean air path dry low pressure air blow through cooler and filters clear keep winding temperature in band insulation resistance to earth on a megger trended over time investigate a falling trend do not wait for the alarm", "sibling_family": "", "via": "answer_title", "answer_title": "Routine onboard alternator maintenance checks", "cross_family": false } ] }, { "qid": "KOL-2020-09-2394-Q002", "text": "DOL start with push button diagram", "family": "Electrical - Motors & Starters", "subtopic": "DOL Starter", "tid": "KOL-2020-09-2394", "tray": "new", "candidates": [ { "answer_id": "STR-DEC-A-001", "score": 0.5950344800949097, "sibling_score": 0.5950344800949097, "answer_score": null, "sibling_qid": "KOC-2025-02-1484-Q008", "sibling_text": "draw and explain dol starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "SDST-A-001", "score": 0.5696929097175598, "sibling_score": 0.5696929097175598, "answer_score": null, "sibling_qid": "KOC-2022-08-1191-Q006", "sibling_text": "draw and explain start delta starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false }, { "answer_id": "AUTOTX-STR-001", "score": 0.5122701525688171, "sibling_score": 0.5122701525688171, "answer_score": null, "sibling_qid": "KOC-2022-09-1196-Q002", "sibling_text": "draw and explain auto xr starters", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "1. Draw, construct and explain the auto-transformer starter", "cross_family": false } ] }, { "qid": "KOL-2020-09-3346-Q004", "text": "Safety valve setting in front of surveyor of a 10bar boiler.", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2020-09-3346", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P01-001", "score": 0.7982304692268372, "sibling_score": 0.7982304692268372, "answer_score": null, "sibling_qid": "KOC-2026-08-2122-Q005", "sibling_text": "boiler safety valve setting in front of surveyor", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.7148308157920837, "sibling_score": 0.7148308157920837, "answer_score": null, "sibling_qid": "CHE-2026-04-0500-Q005", "sibling_text": "boiler safety valve setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "ECON-EGB-004", "score": 0.5457313776016235, "sibling_score": null, "answer_score": 0.5457313776016235, "sibling_qid": "", "sibling_text": "safety valve setting after overhaul why set higher than the boiler setting raise pressure under steam on a calibrated gauge adjust spring compression to lift at the approved set pressure verify re seat and blowdown two valves one at a time the other gagged lock and seal surveyor witnessed values are class approved ship specific set pressure accumulation representative limit and blowdown quote the ", "sibling_family": "", "via": "answer_title", "answer_title": "Safety-valve setting after overhaul & why set higher than the boiler", "cross_family": false } ] }, { "qid": "KOL-2020-09-3346-Q005", "text": "Ref compressor tripping on LP continuously. Reasons", "family": "Refrigeration & AC", "subtopic": "HP / LP Trip", "tid": "KOL-2020-09-3346", "tray": "review", "candidates": [ { "answer_id": "RAC-HPLP-389-001", "score": 0.7417089343070984, "sibling_score": 0.7417089343070984, "answer_score": 0.5168147265911102, "sibling_qid": "MUM-2017-01-2126-Q009", "sibling_text": "refer compressor hp trip reason", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Refrigeration / AC compressor trips on high pressure — causes and checks", "cross_family": false }, { "answer_id": "REEF-COMP-001", "score": 0.7360876798629761, "sibling_score": 0.7360876798629761, "answer_score": 0.49629141986370084, "sibling_qid": "KOC-2024-07-1370-Q007", "sibling_text": "high pressure trip on refer compressor", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Reefer/AC compressor safeties and cut-outs — safety valve, HP and LP cut-outs", "cross_family": false }, { "answer_id": "REEF-COMP-002", "score": 0.7273059487342834, "sibling_score": 0.7273059487342834, "answer_score": null, "sibling_qid": "KOC-2025-05-1532-Q004", "sibling_text": "ref compressor lo trip working and explanation", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Lube-oil low-pressure / differential-pressure trip — how it works, tests and sets", "cross_family": false } ] }, { "qid": "KOL-2020-09-3348-Q001", "text": "Chief eng told to check weld material ,how u check onboard?", "family": "Workshop & Welding", "subtopic": "Welding / NDT / Materials", "tid": "KOL-2020-09-3348", "tray": "review", "candidates": [ { "answer_id": "WELD-B-007", "score": 0.7256942391395569, "sibling_score": 0.7256942391395569, "answer_score": null, "sibling_qid": "KOL-2020-02-0390-Q014", "sibling_text": "overhead welding checks", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Overhead welding — precautions, checks and advantages", "cross_family": false }, { "answer_id": "NDT-METH-P03-002", "score": 0.6927863955497742, "sibling_score": 0.6927863955497742, "answer_score": null, "sibling_qid": "CHE-2026-08-3872-Q011", "sibling_text": "after welding inspection", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Component crack testing — weld, hull plate, tailshaft, crankshaft, piston, serrations", "cross_family": false }, { "answer_id": "PW-327-006", "score": 0.6889676451683044, "sibling_score": 0.6889676451683044, "answer_score": 0.474038952589035, "sibling_qid": "KOC-2023-03-1813-Q009", "sibling_text": "plate weld defect check", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "6. Weld defects, undercut, and weld testing (vacuum box, hose, NDT)", "cross_family": false } ] }, { "qid": "KOL-2020-09-3348-Q002", "text": "main engine cylinder head overhaul and opening pr", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Cover / Head", "tid": "KOL-2020-09-3348", "tray": "review", "candidates": [ { "answer_id": "XHEAD-303-007", "score": 0.774829089641571, "sibling_score": 0.774829089641571, "answer_score": null, "sibling_qid": "KOC-2026-02-1999-Q007", "sibling_text": "cylinder head overhaul", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Crosshead inspection, survey and overhaul, including in-place overhaul", "cross_family": false }, { "answer_id": "CCH-590-002", "score": 0.7533619999885559, "sibling_score": 0.7533619999885559, "answer_score": null, "sibling_qid": "CHE-2026-03-0486-Q010", "sibling_text": "cylinder head overhauling and checks", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "How do you pressure test a cylinder head, and how do you find and rectify a leak from it?", "cross_family": false }, { "answer_id": "CCH-590-004", "score": 0.7008384466171265, "sibling_score": 0.7008384466171265, "answer_score": null, "sibling_qid": "KOC-2025-06-1918-Q006", "sibling_text": "correct procedure for lifting cylinder head", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "What is the correct procedure for lifting a cylinder head, and what checks do you make on the crane beforehand?", "cross_family": false } ] }, { "qid": "KOL-2020-09-3349-Q006", "text": "Mac overhaul to be done, what all precautions you will take w.r.t to other comprssor which is running.", "family": "Air Compressor", "subtopic": "Reciprocating Compressor", "tid": "KOL-2020-09-3349", "tray": "new", "candidates": [ { "answer_id": "UNL-330-003", "score": 0.607434093952179, "sibling_score": 0.607434093952179, "answer_score": 0.47388969659805297, "sibling_qid": "KOC-2023-10-0984-Q005", "sibling_text": "checks on compressor unloader during overhaul", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "What checks are carried out on the compressor unloader during overhaul?", "cross_family": false }, { "answer_id": "MAC-353-012", "score": 0.5741156339645386, "sibling_score": 0.5741156339645386, "answer_score": 0.41938810646533964, "sibling_qid": "CHE-2026-05-0529-Q007", "sibling_text": "mac checks after overhaul", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Checks carried out on the main air compressor after overhaul", "cross_family": false }, { "answer_id": "MAC-353-013", "score": 0.5664850473403931, "sibling_score": 0.5664850473403931, "answer_score": null, "sibling_qid": "MUM-2026-03-1004-Q012", "sibling_text": "after overhauling of air compressor what all checks you will do before starting", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Checks before starting a main air compressor after a long layoff", "cross_family": false } ] }, { "qid": "KOL-2020-10-0429-Q002", "text": "LBP, Why LBP, significance", "family": "Ship Construction", "subtopic": "Principal Dimensions / Ship Dimensions Diagram", "tid": "KOL-2020-10-0429", "tray": "new", "candidates": [ { "answer_id": "LCF-LCB-001", "score": 0.40465134382247925, "sibling_score": 0.40465134382247925, "answer_score": null, "sibling_qid": "CHE-2026-04-0161-Q003", "sibling_text": "significance of lcf", "sibling_family": "", "via": "sibling", "answer_title": "What is the LCF (centre of flotation), where is it, and why does it matter?", "cross_family": false }, { "answer_id": "TON-REF-002", "score": 0.37046754360198975, "sibling_score": 0.37046754360198975, "answer_score": null, "sibling_qid": "MUM-2024-07-1084-Q008", "sibling_text": "significance", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "What is the significance of a refrigeration plant's tonnage / capacity rating?", "cross_family": true }, { "answer_id": "SB-RATIO-004", "score": 0.3607600927352905, "sibling_score": 0.3607600927352905, "answer_score": null, "sibling_qid": "MUM-2026-05-3206-Q004", "sibling_text": "significance of s b ratio", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Why is the stroke length increased? Its effect on the ship, which stroke creates more power, and two engines at the same rpm", "cross_family": true } ] }, { "qid": "KOL-2020-10-0430-Q003", "text": "As 2E your action to minimise fire hazard in dry dock.", "family": "Workshop & Welding", "subtopic": "Hot Work", "tid": "KOL-2020-10-0430", "tray": "review", "candidates": [ { "answer_id": "WBS-C-003", "score": 0.6892077922821045, "sibling_score": 0.6892077922821045, "answer_score": null, "sibling_qid": "CHE-2026-05-0558-Q013", "sibling_text": "in dry dock how will you prepare for hot work what all fire safety you will take", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Shipboard hot work — the permit, the designated area, and work near fuel tanks", "cross_family": false }, { "answer_id": "FIRE-P04-05", "score": 0.6721041202545166, "sibling_score": 0.6721041202545166, "answer_score": 0.6043770253658295, "sibling_qid": "MUM-2023-11-0149-Q006", "sibling_text": "fire on deck in drydock your actions as 2nd engineer step by step", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fire in dry dock / alongside repair — 2/E stepwise actions", "cross_family": true }, { "answer_id": "RISK-RA-D-005", "score": 0.6627128720283508, "sibling_score": 0.6627128720283508, "answer_score": 0.5497215688228607, "sibling_qid": "KOL-2021-07-0523-Q001", "sibling_text": "risk of fire in dry dock", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "", "cross_family": true } ] }, { "qid": "KOL-2020-10-1554-Q004", "text": "What prevention is there in crankshaft for fatigue from the manufacturer side/ design department", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft Material", "tid": "KOL-2020-10-1554", "tray": "review", "candidates": [ { "answer_id": "CFF-P02-005", "score": 0.6712545156478882, "sibling_score": 0.6712545156478882, "answer_score": 0.5329707503318787, "sibling_qid": "KOL-2018-10-1429-Q005", "sibling_text": "what are the measures taken to tackle fatigue failure of crankshaft what measures are taken by engine maker to tackle fatigue", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Reducing and preventing fatigue failure", "cross_family": true }, { "answer_id": "CRK-DEFL-001", "score": 0.6442815661430359, "sibling_score": 0.6442815661430359, "answer_score": null, "sibling_qid": "CHE-2026-05-0648-Q005", "sibling_text": "stresses on crank shaft not accepting any stress", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Purpose, timing and scope of crankshaft deflection", "cross_family": false }, { "answer_id": "CC-RELIEF-312-005", "score": 0.6281430125236511, "sibling_score": 0.6281430125236511, "answer_score": null, "sibling_qid": "MUM-2026-06-3502-Q003", "sibling_text": "safety on crankcase", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Safeties fitted for the crankcase", "cross_family": false } ] }, { "qid": "KOL-2020-10-1555-Q004", "text": "Ball bearing and roller bearing where you will use in t/c", "family": "Turbocharger", "subtopic": "TC Bearing", "tid": "KOL-2020-10-1555", "tray": "review", "candidates": [ { "answer_id": "BRG-NOM-002", "score": 0.6890794038772583, "sibling_score": 0.6890794038772583, "answer_score": 0.5372124373912811, "sibling_qid": "MUM-2026-01-1242-Q009", "sibling_text": "where is used ball bearings and roller bearings", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Ball, Roller, Radial and Axial Bearings — Choosing the Type", "cross_family": true }, { "answer_id": "TURBO-CS-P02-001", "score": 0.66529780626297, "sibling_score": 0.66529780626297, "answer_score": 0.5092440128326415, "sibling_qid": "KOC-2025-08-1051-Q005", "sibling_text": "type of t c bearings explain", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharger bearings — types and lubrication", "cross_family": false }, { "answer_id": "THRUST-BRG-B-003", "score": 0.618586540222168, "sibling_score": 0.618586540222168, "answer_score": null, "sibling_qid": "MUM-2026-06-3405-Q021", "sibling_text": "for which thrust ball bearing is used", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Michell / tilting-pad / collar thrust bearing — working principle", "cross_family": true } ] }, { "qid": "KOL-2020-10-2396-Q003", "text": "1 solas requirement for no. Of gen.", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator / Generator", "tid": "KOL-2020-10-2396", "tray": "new", "candidates": [ { "answer_id": "EDG-P01-001", "score": 0.506699800491333, "sibling_score": 0.506699800491333, "answer_score": null, "sibling_qid": "MUM-2022-07-1334-Q003", "sibling_text": "solas requirement for emcy gen", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Emergency source of power — the SOLAS requirements", "cross_family": false }, { "answer_id": "SOLAS-OVW-002", "score": 0.44486528635025024, "sibling_score": 0.44486528635025024, "answer_score": null, "sibling_qid": "KOL-2019-08-0321-Q001", "sibling_text": "1 solas reg13", "sibling_family": "", "via": "sibling", "answer_title": "SOLAS Chapter XIII — verification of compliance (III Code / IMSAS)", "cross_family": false }, { "answer_id": "ETA-567-001", "score": 0.4384068250656128, "sibling_score": 0.4384068250656128, "answer_score": null, "sibling_qid": "CHE-2021-06-0508-Q008", "sibling_text": "eta solas requirement", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Emergency towing arrangement — purpose, SOLAS requirement, standby and passing to the tug", "cross_family": true } ] }, { "qid": "KOL-2020-10-2397-Q004", "text": "intrinsic circuit. How does intrinsic device work on such low ampere and voltage.", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOL-2020-10-2397", "tray": "new", "candidates": [ { "answer_id": "HAZ-EX-B-001", "score": 0.47649070620536804, "sibling_score": 0.47649070620536804, "answer_score": null, "sibling_qid": "KOC-2024-09-1402-Q006", "sibling_text": "intrinsic safety draw circuit max value of voltage and current", "sibling_family": "", "via": "sibling", "answer_title": "Intrinsically safe (Ex i) equipment — what it is, how it works, where it is used, how you identify it", "cross_family": false }, { "answer_id": "ICCP-P02-001", "score": 0.4598475396633148, "sibling_score": 0.4598475396633148, "answer_score": null, "sibling_qid": "KOC-2026-05-0051-Q002", "sibling_text": "iccp drawing ref voltage 800mv also current applied", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP reference cell / reference electrode — purpose, material, location, selection", "cross_family": false }, { "answer_id": "FSF-BF073-004", "score": 0.4583628475666046, "sibling_score": 0.4583628475666046, "answer_score": null, "sibling_qid": "CHE-2026-03-0359-Q001", "sibling_text": "zener diode zener barrier working in intrinsically safe", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a magnetic fail safe?", "cross_family": false } ] }, { "qid": "KOL-2020-10-2397-Q005", "text": "Solas regulations for No of generator.", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator / Generator", "tid": "KOL-2020-10-2397", "tray": "new", "candidates": [ { "answer_id": "EDG-P01-002", "score": 0.6266235113143921, "sibling_score": 0.6266235113143921, "answer_score": null, "sibling_qid": "MUM-2026-02-1954-Q005", "sibling_text": "regulation regarding location of emergency generator he wanted exactly according to solas", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Emergency generator room — location and rounds", "cross_family": false }, { "answer_id": "LS-IMB-A-001", "score": 0.6162254214286804, "sibling_score": 0.6162254214286804, "answer_score": null, "sibling_qid": "KOL-2026-05-4097-Q003", "sibling_text": "one generator taking 380 kw another 320 kw in parallel reason", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Two paralleled generators sharing unequal load — cause and correction", "cross_family": false }, { "answer_id": "EDG-P01-001", "score": 0.6016353964805603, "sibling_score": 0.6016353964805603, "answer_score": null, "sibling_qid": "MUM-2025-11-1768-Q004", "sibling_text": "4 emergency generator regulation", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Emergency source of power — the SOLAS requirements", "cross_family": false } ] }, { "qid": "KOL-2020-10-2400-Q003", "text": "Ex-i all details example and where use?", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOL-2020-10-2400", "tray": "new", "candidates": [ { "answer_id": "EEXI-001", "score": 0.5026296973228455, "sibling_score": 0.5026296973228455, "answer_score": 0.2757566496729851, "sibling_qid": "KOL-2021-12-0580-Q005", "sibling_text": "eexi details", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is EEXI? Explain it in full — formula, unit, application, and what an existing ship is", "cross_family": false }, { "answer_id": "EXD-EXI-A-001", "score": 0.501118004322052, "sibling_score": 0.501118004322052, "answer_score": null, "sibling_qid": "KOC-2023-03-1241-Q002", "sibling_text": "exd and exi explain application of both", "sibling_family": "", "via": "sibling", "answer_title": "Ex i (intrinsically safe) vs Ex d (flameproof / explosion-proof) — the difference", "cross_family": false }, { "answer_id": "HAZ-EX-B-001", "score": 0.4918327331542969, "sibling_score": 0.4918327331542969, "answer_score": null, "sibling_qid": "MUM-2026-05-3349-Q002", "sibling_text": "exi full explanation", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Intrinsically safe (Ex i) equipment — what it is, how it works, where it is used, how you identify it", "cross_family": false } ] }, { "qid": "KOL-2020-10-2403-Q002", "text": "ICCP working principle? How u know it's working properly and current value ?", "family": "Electrical - ICCP & Cathodic Protection", "subtopic": "ICCP", "tid": "KOL-2020-10-2403", "tray": "review", "candidates": [ { "answer_id": "ICCP-119-P01-003", "score": 0.659348726272583, "sibling_score": 0.659348726272583, "answer_score": null, "sibling_qid": "MUM-2022-09-1356-Q005", "sibling_text": "iccp values means current some more not remember", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP values, impressed-current meaning, anode/cathode roles and materials", "cross_family": false }, { "answer_id": "ICCP-119-P01-001", "score": 0.6061156392097473, "sibling_score": 0.6061156392097473, "answer_score": 0.38655034452676773, "sibling_qid": "MUM-2022-11-2715-Q033", "sibling_text": "iccp and how do we know it is working good", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP — purpose, principle and basic working", "cross_family": false }, { "answer_id": "ICCP-P02-001", "score": 0.585895299911499, "sibling_score": 0.585895299911499, "answer_score": null, "sibling_qid": "KOC-2022-10-1203-Q006", "sibling_text": "iccp working why iccp is provided in the forward and aft reference electrodes voltage values", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP reference cell / reference electrode — purpose, material, location, selection", "cross_family": false } ] }, { "qid": "KOL-2020-10-2405-Q004", "text": "ICCP working ? shaft earthing ?cross question", "family": "Electrical - ICCP & Cathodic Protection", "subtopic": "ICCP", "tid": "KOL-2020-10-2405", "tray": "review", "candidates": [ { "answer_id": "SGD-001", "score": 0.6755461096763611, "sibling_score": 0.6755461096763611, "answer_score": 0.4822361260652542, "sibling_qid": "KOL-2023-11-2683-Q006", "sibling_text": "shaft grounding full cross why happens", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "What is shaft earthing / grounding, how is it connected, and why is it fitted?", "cross_family": false }, { "answer_id": "ICCP-119-P01-003", "score": 0.6744632124900818, "sibling_score": 0.6744632124900818, "answer_score": null, "sibling_qid": "MUM-2022-12-1372-Q005", "sibling_text": "iccp working what all to record 5 shaft earthing showing zero what to do unit value", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP values, impressed-current meaning, anode/cathode roles and materials", "cross_family": false }, { "answer_id": "SHFT-ERTH-300-001", "score": 0.660085916519165, "sibling_score": 0.660085916519165, "answer_score": null, "sibling_qid": "KOL-2025-09-2857-Q007", "sibling_text": "shaft grounding cross ques", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Purpose, principle and arrangement", "cross_family": true } ] }, { "qid": "KOL-2020-10-3350-Q004", "text": "referigeration plant number of rooms cooled .? Back pressure valve ? What if u only have meat n first room , still u will have back pressure valve .? By Mr. Rao -", "family": "Refrigeration & AC", "subtopic": "Back Pressure Valve", "tid": "KOL-2020-10-3350", "tray": "review", "candidates": [ { "answer_id": "BPV-315-006", "score": 0.745435357093811, "sibling_score": 0.745435357093811, "answer_score": null, "sibling_qid": "KOC-2026-05-0011-Q003", "sibling_text": "in provision refer plant how veg fish and meat room temp maintaining ask me to sketch where back pressure valve will be there", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Where the back pressure valve fits in a provision plant (sketch)", "cross_family": false }, { "answer_id": "BPV-315-001", "score": 0.7099195122718811, "sibling_score": 0.7099195122718811, "answer_score": null, "sibling_qid": "CHE-2026-05-0583-Q003", "sibling_text": "in the refrigeration system need of back pressure valve", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Back pressure valve — purpose, location and operation", "cross_family": false }, { "answer_id": "TEV-TXV-003", "score": 0.6846689581871033, "sibling_score": 0.6846689581871033, "answer_score": null, "sibling_qid": "MUM-2023-08-1053-Q002", "sibling_text": "refrigeration plant back up valve tev external internal equalizing line", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Equalizing line — internal vs external equalized TEV", "cross_family": false } ] }, { "qid": "KOL-2020-10-3352-Q003", "text": "Construction of crankshaft, design part, material , new modifications", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft Material", "tid": "KOL-2020-10-3352", "tray": "review", "candidates": [ { "answer_id": "CRANK-217-001", "score": 0.6895996928215027, "sibling_score": 0.6895996928215027, "answer_score": 0.4750734090805054, "sibling_qid": "MUM-2026-05-3266-Q006", "sibling_text": "material of crankshaft", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankshaft types and how the type is identified", "cross_family": false }, { "answer_id": "HT-A-001", "score": 0.6825390458106995, "sibling_score": 0.6825390458106995, "answer_score": null, "sibling_qid": "MUM-2026-05-3334-Q006", "sibling_text": "crankshaft material and heat treatment", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Heat treatment: what it is, the main methods, and why it is done", "cross_family": false }, { "answer_id": "CRANK-217-002", "score": 0.6034730076789856, "sibling_score": 0.6034730076789856, "answer_score": 0.5314681082963943, "sibling_qid": "MUM-2026-05-3163-Q008", "sibling_text": "how is semi built crankshaft constructed some cross questions like advantages over fully built and where these type of crankshaft is seen", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Semi-built crankshaft: construction, fitting and comparison", "cross_family": false } ] }, { "qid": "KOL-2020-10-3352-Q004", "text": "Rest not remember but related to design parts and new modifications only", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOL-2020-10-3352", "tray": "new", "candidates": [ { "answer_id": "SHAFT-CPP-005", "score": 0.5077972412109375, "sibling_score": 0.5077972412109375, "answer_score": 0.3277724891901016, "sibling_qid": "KOL-2019-02-3214-Q006", "sibling_text": "propeller latest modifications", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "5. Propeller types, design criteria & latest developments", "cross_family": true }, { "answer_id": "IMODCS-004", "score": 0.5070285797119141, "sibling_score": 0.5070285797119141, "answer_score": null, "sibling_qid": "KOL-2026-02-1166-Q005", "sibling_text": "new amendments in seemp part 2", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is the latest amendment to MARPOL Annex VI affecting the IMO DCS?", "cross_family": true }, { "answer_id": "COT-P02-10", "score": 0.504869818687439, "sibling_score": 0.504869818687439, "answer_score": null, "sibling_qid": "KOC-2023-10-0221-Q001", "sibling_text": "ig new amendments", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "State and explain the latest statutory amendments affecting tanker inert-gas systems, including applicability and practical changes on board.", "cross_family": true } ] }, { "qid": "KOL-2020-10-3353-Q002", "text": "Aluminium welding preparation ?", "family": "Workshop & Welding", "subtopic": "Welding / NDT / Materials", "tid": "KOL-2020-10-3353", "tray": "review", "candidates": [ { "answer_id": "WELD-B-001", "score": 0.7563883066177368, "sibling_score": 0.7563883066177368, "answer_score": 0.5420767337083816, "sibling_qid": "MUM-2021-06-2129-Q001", "sibling_text": "aluminium welding difficulties and procedures", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding & crack-repair of aluminium and cast iron, including metal stitching", "cross_family": false }, { "answer_id": "WBS-C-001", "score": 0.7082741856575012, "sibling_score": 0.7082741856575012, "answer_score": null, "sibling_qid": "KOL-2018-01-3111-Q001", "sibling_text": "alumunium welding diffuclties and how are they dealt with", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding, brazing and soldering — what they are, the shipboard processes, and workshop safety", "cross_family": false }, { "answer_id": "WELD-B-004", "score": 0.706472635269165, "sibling_score": 0.706472635269165, "answer_score": 0.5088614493608474, "sibling_qid": "KOL-2025-07-3831-Q003", "sibling_text": "aluminium welding with steel", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Joining dissimilar metals — aluminium to steel, and explosive welding", "cross_family": false } ] }, { "qid": "KOL-2020-10-3354-Q002", "text": "What kind of ships u have done. Give briefing abt MCC engines.", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "KOL-2020-10-3354", "tray": "new", "candidates": [ { "answer_id": "MCC-MEB-P01-001", "score": 0.6236774921417236, "sibling_score": 0.6236774921417236, "answer_score": null, "sibling_qid": "MUM-2026-06-3596-Q002", "sibling_text": "what type of engine mcc", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "MC-C (\"Compact\") engine — design and the main constructional differences from MC", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.6113091111183167, "sibling_score": 0.6113091111183167, "answer_score": null, "sibling_qid": "MUM-2026-09-3882-Q001", "sibling_text": "introduction types of ship main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "REV-PROC-002", "score": 0.5787673592567444, "sibling_score": 0.5787673592567444, "answer_score": null, "sibling_qid": "KOL-2024-06-1780-Q005", "sibling_text": "what ship you had done what type of engine you have worked how reversing takes place in mc engine", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Reversing in MAN B&W MC / MC-C / ME-C / ME-B engines", "cross_family": true } ] }, { "qid": "KOL-2020-10-3354-Q005", "text": "Fwg salinty high...reasons This was the first straight question.■", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "KOL-2020-10-3354", "tray": "new", "candidates": [ { "answer_id": "FWG-RO-002", "score": 0.4555526375770569, "sibling_score": 0.4555526375770569, "answer_score": 0.30181843787431717, "sibling_qid": "MUM-2025-05-2289-Q004", "sibling_text": "fwg high salinity reasons", "sibling_family": "Fresh Water & Domestic Systems", "via": "sibling", "answer_title": "The FWG salinity alarm keeps sounding. What are the reasons for high salinity?", "cross_family": true }, { "answer_id": "BWTEST-A-002", "score": 0.38682645559310913, "sibling_score": 0.38682645559310913, "answer_score": 0.22238126844167708, "sibling_qid": "MUM-2026-03-1306-Q021", "sibling_text": "frequent salinity alarm coming reasons and why", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "What does high boiler-water chloride, salinity or TDS indicate, and what action is required?", "cross_family": false }, { "answer_id": "FWG-RO-003", "score": 0.3462173640727997, "sibling_score": 0.3462173640727997, "answer_score": null, "sibling_qid": "KOC-2026-02-1098-Q007", "sibling_text": "fwg production reduces reasons", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "The FWG is not producing enough water or its efficiency has dropped. Reasons, checks and action?", "cross_family": false } ] }, { "qid": "KOL-2020-10-3985-Q002", "text": "What is static electricity and details in safeties in tanker.", "family": "Tanker Operations & Cargo Safety", "subtopic": "Static Electricity", "tid": "KOL-2020-10-3985", "tray": "review", "candidates": [ { "answer_id": "STAT-BOND-BF045-002", "score": 0.7254105806350708, "sibling_score": 0.7254105806350708, "answer_score": 0.6037296921014785, "sibling_qid": "CHE-2026-02-0111-Q001", "sibling_text": "static electricity and methods to prevent in tankers tank safeties", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "How is static electricity controlled and prevented on a tanker — deck and cargo-tank arrangements?", "cross_family": true }, { "answer_id": "STAT-BOND-BF045-001", "score": 0.6908897161483765, "sibling_score": 0.6908897161483765, "answer_score": 0.6185884654521941, "sibling_qid": "CHE-2025-11-0080-Q002", "sibling_text": "static electricity in tankers", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What is static electricity, and how is static charge generated on a tanker?", "cross_family": true }, { "answer_id": "STAT-562-001", "score": 0.6759548187255859, "sibling_score": 0.6759548187255859, "answer_score": 0.610058531165123, "sibling_qid": "MUM-2025-09-0443-Q009", "sibling_text": "how safety for static electricity is been taken care inside cargo tank", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Static electricity generation in tanker pipelines & cargo-tank safety", "cross_family": true } ] }, { "qid": "KOL-2020-10-3985-Q007", "text": "marpol annex 2.what all prec with x category according to marpol.", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "Marpol Annex Certificates", "tid": "KOL-2020-10-3985", "tray": "new", "candidates": [ { "answer_id": "AII-DISCH-002", "score": 0.6432309746742249, "sibling_score": 0.6432309746742249, "answer_score": 0.5029026091098785, "sibling_qid": "KOL-2026-02-1187-Q001", "sibling_text": "marpol annex 2 discharge criteria of category x", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Explain the Category X, Y and Z chemical cargo residue discharge criteria", "cross_family": true }, { "answer_id": "EECS-004", "score": 0.596230685710907, "sibling_score": 0.596230685710907, "answer_score": null, "sibling_qid": "CHE-2026-05-0623-Q004", "sibling_text": "marpol annex 6 eedi eexi seemp part1 part2 cii", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "04. The Annex VI energy-efficiency set together: EEDI, EEXI, SEEMP parts, CII", "cross_family": false }, { "answer_id": "AVI-SCOPE-004", "score": 0.594167947769165, "sibling_score": 0.594167947769165, "answer_score": null, "sibling_qid": "CHE-2025-08-0021-Q003", "sibling_text": "what is marpol annex 6 regulate x qn", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Explain MARPOL Annex VI: purpose, scope, chapters/regulations and main onboard requirements.", "cross_family": false } ] }, { "qid": "KOL-2020-11-0436-Q005", "text": "Nox Take over by Banerjee", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "NOx Limits / Tier", "tid": "KOL-2020-11-0436", "tray": "new", "candidates": [ { "answer_id": "A6-NSEC-002", "score": 0.46289172768592834, "sibling_score": 0.46289172768592834, "answer_score": 0.17975019067525863, "sibling_qid": "KOL-2020-02-0391-Q005", "sibling_text": "nox technical code file", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "NOx Technical Code vs NOx Technical File", "cross_family": false }, { "answer_id": "AV6-P02-01", "score": 0.2369038611650467, "sibling_score": null, "answer_score": 0.2369038611650467, "sibling_qid": "", "sibling_text": "nox environmental and health effects and why marpol regulates it nox family of nitrogen oxides mainly no and no2 formed as thermal nox zeldovich mechanism significant above roughly 1600 c and dominant well above 1800 c atmospheric harm photochemical smog and ground level ozone nox vocs sunlight", "sibling_family": "", "via": "answer_title", "answer_title": "NOx — environmental and health effects, and why MARPOL regulates it", "cross_family": false }, { "answer_id": "AV6-P02-03", "score": 0.1898617520928383, "sibling_score": null, "answer_score": 0.1898617520928383, "sibling_qid": "", "sibling_text": "engine design developments for nox reduction nozzles timing chambers electronic engines historical modifications design goal cut peak cylinder temperature and residence time in the thermal nox window without wrecking sfoc fuel injection electronic engine architectures differ by maker w rtsil sulzer rt flex uses electronically controlled common rail man b w me me c uses electronically controlled hy", "sibling_family": "", "via": "answer_title", "answer_title": "Engine-design developments for NOx reduction — nozzles, timing, chambers, electronic engines, historical modifications", "cross_family": false } ] }, { "qid": "KOL-2020-11-0437-Q003", "text": "intact and damage stability.", "family": "SOLAS", "subtopic": "Damage Stability", "tid": "KOL-2020-11-0437", "tray": "review", "candidates": [ { "answer_id": "DAM-STAB-P03-001", "score": 0.8290198445320129, "sibling_score": 0.8290198445320129, "answer_score": 0.4937268614768982, "sibling_qid": "KOC-2025-10-0674-Q007", "sibling_text": "intact and damage stability", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Intact, static, dynamic and damage stability: difference and criteria", "cross_family": false }, { "answer_id": "DS-049-P02-001", "score": 0.8290198445320129, "sibling_score": 0.8290198445320129, "answer_score": 0.47455207705497743, "sibling_qid": "KOC-2022-08-0082-Q009", "sibling_text": "intact and damage stability", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Difference between intact stability (static / dynamic) and damage stability criteria", "cross_family": false }, { "answer_id": "DS-BASIC-P01-001", "score": 0.5221218258142472, "sibling_score": null, "answer_score": 0.5221218258142472, "sibling_qid": "", "sibling_text": "damage stability definition meaning and oral overview", "sibling_family": "", "via": "answer_title", "answer_title": "Damage stability: definition, meaning and oral overview", "cross_family": false } ] }, { "qid": "KOL-2020-11-0437-Q004", "text": "IG alarms and trips.", "family": "Tanker - Inert Gas System", "subtopic": "IG Alarms / Trips", "tid": "KOL-2020-11-0437", "tray": "review", "candidates": [ { "answer_id": "IGAT-583-001", "score": 0.7811686396598816, "sibling_score": 0.7811686396598816, "answer_score": 0.4530900180339813, "sibling_qid": "MUM-2026-04-0929-Q002", "sibling_text": "ig alarms and trips", "sibling_family": "Tanker - Inert Gas System", "via": "sibling", "answer_title": "State all the alarms, trips and safety cut-outs provided on a tanker inert gas (IG) system.", "cross_family": false }, { "answer_id": "MR-DS-PV-B-003", "score": 0.45927720069885253, "sibling_score": null, "answer_score": 0.45927720069885253, "sibling_qid": "", "sibling_text": "3 alarms trips valves and abnormal conditions of the deck seal key seal alarm low water level audible and visual fss requirement any low low trip interlock of gas delivery is maker ship sms logic and should be quoted from the approved ig manual a low seal a lost first barrier pressure oxygen instrumentation when ig is being supplied continuously indicate and permanently record the pressure of the ", "sibling_family": "", "via": "answer_title", "answer_title": "3. Alarms, trips, valves, and abnormal conditions of the deck seal", "cross_family": false }, { "answer_id": "IGAT-583-003", "score": 0.4341107964515686, "sibling_score": null, "answer_score": 0.4341107964515686, "sibling_qid": "", "sibling_text": "what are the set values for the ig system alarms and trips ig line high low and low low pressure oxygen content pv valve and breaker pressures statutory fss code ch 15 msc 367 93 oxygen alarm in excess of 5 by volume in the delivered gas 2 2 4 5 1 1 statutory gas pressure alarm less than 100 mm water gauge 2 2 4 5 1 3", "sibling_family": "", "via": "answer_title", "answer_title": "What are the set values for the IG system alarms and trips — IG line high, low and low-low pressure, oxygen content, PV valve and breaker pressures?", "cross_family": false } ] }, { "qid": "KOL-2020-11-0438-Q002", "text": "Define time period of role", "family": "", "subtopic": "Static / Dynamic Stability", "tid": "KOL-2020-11-0438", "tray": "new", "candidates": [ { "answer_id": "BK-002", "score": 0.518121600151062, "sibling_score": 0.518121600151062, "answer_score": null, "sibling_qid": "KOL-2026-05-4185-Q004", "sibling_text": "period of roll", "sibling_family": "", "via": "sibling", "answer_title": "How does a bilge keel reduce rolling, and how does it relate to roll period and radius of gyration?", "cross_family": false }, { "answer_id": "EMG-DG-P02-FINAL-2-002", "score": 0.48114413022994995, "sibling_score": 0.48114413022994995, "answer_score": null, "sibling_qid": "KOC-2024-10-1410-Q004", "sibling_text": "transitional power and duration", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Transitional source of emergency power and its duration", "cross_family": false }, { "answer_id": "BDC-P04-03", "score": 0.4628836512565613, "sibling_score": 0.4628836512565613, "answer_score": null, "sibling_qid": "KOC-2025-06-1539-Q006", "sibling_text": "duration", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "Battery load test on board — preparation, deciding the load, and reading the result", "cross_family": false } ] }, { "qid": "KOL-2020-11-0439-Q005", "text": "Auxiliary engine crank pin ovality", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Crankshaft / Crankpin / Bearings", "tid": "KOL-2020-11-0439", "tray": "review", "candidates": [ { "answer_id": "CRPIN-CHK-P01-001", "score": 0.7662237286567688, "sibling_score": 0.7662237286567688, "answer_score": 0.5780995607376098, "sibling_qid": "KOL-2026-03-3936-Q001", "sibling_text": "how will you carry out ovality of crank pin and con rod in aux eng", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Crankpin ovality — how it is measured and at what positions", "cross_family": false }, { "answer_id": "AE-CSB-346-004", "score": 0.7162781357765198, "sibling_score": 0.7162781357765198, "answer_score": 0.5621406704187393, "sibling_qid": "MUM-2022-07-1014-Q005", "sibling_text": "ae crankpin ovality and action", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Crankpin ovality / damage — check and repair action", "cross_family": false }, { "answer_id": "AE-CRP-004", "score": 0.7006847262382507, "sibling_score": 0.7006847262382507, "answer_score": null, "sibling_qid": "KOC-2021-05-1760-Q004", "sibling_text": "connecting rod checks in auxiliary engine ans normal procedure he needs that no need to check anything on conrod bolts change it after running hours specified in manual and reason for conrod ovality is excessive lapping of serrations", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE connecting-rod inspection — ovality, trueness, serrations, action if out of limit", "cross_family": false } ] }, { "qid": "KOL-2020-11-0440-Q003", "text": "LRIT... signal goes where..? How system works and uses ?", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "KOL-2020-11-0440", "tray": "new", "candidates": [ { "answer_id": "EICU-MAN-P02-002", "score": 0.4180140495300293, "sibling_score": 0.4180140495300293, "answer_score": null, "sibling_qid": "KOC-2023-01-0975-Q001", "sibling_text": "1 sulzer rta man draw explain hw signal is going", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Manoeuvring on RT-flex, Sulzer RTA and Mitsubishi UEC", "cross_family": true }, { "answer_id": "EPIRB-003", "score": 0.4083443880081177, "sibling_score": 0.4083443880081177, "answer_score": null, "sibling_qid": "CHE-2025-08-0038-Q004", "sibling_text": "epirb how the signal is sent where it is sent what information is sent", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What signal does the EPIRB send — frequency, how and where it is routed, who receives it, and how it is stored and activated?", "cross_family": true }, { "answer_id": "MIB-B-001", "score": 0.39671313762664795, "sibling_score": 0.39671313762664795, "answer_score": null, "sibling_qid": "MUM-2023-05-1386-Q010", "sibling_text": "x how do you read these signal i said fet", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "MOSFET, FET and JFET — construction, operation and where they are used", "cross_family": true } ] }, { "qid": "KOL-2020-11-0441-Q003", "text": "As a 2nd engineer, what are the steps you’ll take in an emergency (emergency not specified).", "family": "ISM Code", "subtopic": "Root Cause / Incident Reporting", "tid": "KOL-2020-11-0441", "tray": "review", "candidates": [ { "answer_id": "CAS-ESTOP-007", "score": 0.6861816644668579, "sibling_score": 0.6861816644668579, "answer_score": null, "sibling_qid": "MUM-2024-01-2219-Q001", "sibling_text": "immediate first actions as 2nd engineer", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Major machinery casualty — first actions and taking the ship to a safe port", "cross_family": true }, { "answer_id": "ISM-AUD-P03-003", "score": 0.6507172584533691, "sibling_score": 0.6507172584533691, "answer_score": null, "sibling_qid": "KOL-2026-02-1183-Q003", "sibling_text": "emergency situation on ship how to deal as a 2nd engineer tell me in brief", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Non-conformity, major non-conformity and incident reporting under SMS", "cross_family": false }, { "answer_id": "CAS-ESTOP-004", "score": 0.6342744827270508, "sibling_score": 0.6342744827270508, "answer_score": null, "sibling_qid": "KOL-2023-08-2673-Q002", "sibling_text": "1 as 2nd engineer tell electrical emergency shutdown system", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Slow-down, emergency stop and emergency shut-down — what they are and what happens", "cross_family": true } ] }, { "qid": "KOL-2020-11-1558-Q001", "text": "What type of ship?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2020-11-1558", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.816957414150238, "sibling_score": 0.816957414150238, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.7905704379081726, "sibling_score": 0.7905704379081726, "answer_score": 0.5098951458930969, "sibling_qid": "MUM-2026-02-0731-Q002", "sibling_text": "what type of ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7817984223365784, "sibling_score": 0.7817984223365784, "answer_score": 0.5349258720874787, "sibling_qid": "KOC-2026-09-2198-Q001", "sibling_text": "type a and b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "KOL-2020-11-1558-Q004", "text": "Bore cooling arrangement in liner, why and explain in detail.", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "KOL-2020-11-1558", "tray": "new", "candidates": [ { "answer_id": "CYL-LINER-P01-001", "score": 0.5351154804229736, "sibling_score": 0.5351154804229736, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001S4", "sibling_text": "liner cooling liner calibration", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Carrying out main-engine liner calibration (gauging)", "cross_family": false }, { "answer_id": "CYL-LINER-P04-007", "score": 0.5338128209114075, "sibling_score": 0.5338128209114075, "answer_score": null, "sibling_qid": "MUM-2025-11-2866-Q010", "sibling_text": "latest developments in cyl liner he wants to here insulated mid section for reduce cooling effect to prevent moisture", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Latest developments — cold-corrosion control & the “insulated” liner", "cross_family": false }, { "answer_id": "PC-TP-003", "score": 0.5091238617897034, "sibling_score": 0.5091238617897034, "answer_score": null, "sibling_qid": "KOC-2023-07-0925-Q009", "sibling_text": "how piston crown cooling taking place lube circuit from telescopic pipe where it return back", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston crown cooling oil circuit and where the oil returns", "cross_family": false } ] }, { "qid": "KOL-2020-11-1563-Q011", "text": "Gear drive use.", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Camshaft Drive / Gear Arrangement", "tid": "KOL-2020-11-1563", "tray": "new", "candidates": [ { "answer_id": "TG-MOTOR-003", "score": 0.6179236173629761, "sibling_score": 0.6179236173629761, "answer_score": null, "sibling_qid": "MUM-2023-10-1406-Q007", "sibling_text": "started used in turning gear", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What starter is used on the turning gear motor, and why not a star-delta or a soft starter?", "cross_family": true }, { "answer_id": "TG-MOTOR-001", "score": 0.6046002507209778, "sibling_score": 0.6046002507209778, "answer_score": null, "sibling_qid": "MUM-2025-09-2844-Q005", "sibling_text": "motor used in turning gear", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What type of motor is used for the turning gear, and what type of rotor does it have?", "cross_family": true }, { "answer_id": "CHAIN-TENS-B-004", "score": 0.5611165761947632, "sibling_score": 0.5611165761947632, "answer_score": null, "sibling_qid": "KOL-2019-10-1489-Q004", "sibling_text": "advantage of gear drive and chain drive", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Chain drive versus gear drive for the camshaft", "cross_family": true } ] }, { "qid": "KOL-2020-11-1565-Q002", "text": "which engine? Specifications", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOL-2020-11-1565", "tray": "review", "candidates": [ { "answer_id": "ENG-NOM-006", "score": 0.7972304224967957, "sibling_score": 0.7972304224967957, "answer_score": null, "sibling_qid": "CHE-2026-03-0181-Q001", "sibling_text": "engine specification", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Short-form asks: SMC-C, LMC, and ME vs MC quickly", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7439517378807068, "sibling_score": 0.7439517378807068, "answer_score": null, "sibling_qid": "MUM-2026-07-3719-Q006", "sibling_text": "type of engine and it s specification", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false }, { "answer_id": "ETP-344-P03-003", "score": 0.5115434467792511, "sibling_score": null, "answer_score": 0.5115434467792511, "sibling_qid": "", "sibling_text": "engine nomenclature layout mark number and engine constant designation order man b w cylinders stroke bore letter k l s g bore in cm m programme concept e electronic c camshaft design c compact b camshaft controlled exhaust hybrid mark number gi if gas injection tier rating stroke bore letters k short l long s super long g ultra long green the ratios are approximate design values not exact", "sibling_family": "", "via": "answer_title", "answer_title": "Engine nomenclature, layout, mark number and engine constant", "cross_family": false } ] }, { "qid": "KOL-2020-11-1565-Q005", "text": "for long voyage what cut out should be checked for main engine.why?", "family": "2-Stroke - Operations & Casualty", "subtopic": "Decarb / Overhaul Prep", "tid": "KOL-2020-11-1565", "tray": "new", "candidates": [ { "answer_id": "CAS-ESTOP-002", "score": 0.6199658513069153, "sibling_score": 0.6199658513069153, "answer_score": null, "sibling_qid": "KOL-2018-04-3136-Q003", "sibling_text": "ship aground what checks of main engine", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Main-engine checks after grounding, before turning or a kick", "cross_family": false }, { "answer_id": "RWX-CHK-001", "score": 0.6176051497459412, "sibling_score": 0.6176051497459412, "answer_score": null, "sibling_qid": "MUM-2026-06-3370-Q003", "sibling_text": "checks on main engine and auxiliary engine after bad weather and cross questions", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Engine-room and machinery checks before and after rough weather", "cross_family": false }, { "answer_id": "DCB-OVH-002", "score": 0.5929319262504578, "sibling_score": 0.5929319262504578, "answer_score": null, "sibling_qid": "KOL-2023-08-3954-Q006", "sibling_text": "any major overhauling in main engine", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Preparing for a complete unit overhaul or unit survey", "cross_family": false } ] }, { "qid": "KOL-2020-11-1565-Q007", "text": "control air line safety.need of drier.if it is not there what will be happened?", "family": "Air Compressor", "subtopic": "MAC / Air Compressor", "tid": "KOL-2020-11-1565", "tray": "new", "candidates": [ { "answer_id": "ACSS-001", "score": 0.5244998931884766, "sibling_score": 0.5244998931884766, "answer_score": null, "sibling_qid": "MUM-2023-05-2728-Q007", "sibling_text": "main air comp sefty", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Main air-compressor safeties, alarms and trips", "cross_family": false }, { "answer_id": "ICAC-299-004", "score": 0.5173259973526001, "sibling_score": 0.5173259973526001, "answer_score": null, "sibling_qid": "KOL-2018-09-3189-Q003", "sibling_text": "air line intercooler and aftercooler purpose and arrangements to remove moisture from compressed air system", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Moisture removal: cooler, separator and drains", "cross_family": false }, { "answer_id": "ACSS-002", "score": 0.5115352869033813, "sibling_score": 0.5115352869033813, "answer_score": null, "sibling_qid": "KOL-2022-02-1660-Q004", "sibling_text": "compressor safeties prolonged running of air compressor reasons", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Relief / safety valves: settings, testing, lifting reasons; bursting disc", "cross_family": false } ] }, { "qid": "KOL-2020-11-1566-Q002", "text": "Ship types, experience, college ... Intro. What kind of ME worked on. Name plate information of your ship.", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2020-11-1566", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P01-001", "score": 0.7211049795150757, "sibling_score": 0.7211049795150757, "answer_score": null, "sibling_qid": "CHE-2026-02-0243-Q001", "sibling_text": "type of ship and type of main engine you worked", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.7043359875679016, "sibling_score": 0.7043359875679016, "answer_score": null, "sibling_qid": "MUM-2026-05-3002-Q001", "sibling_text": "type of ship and all", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.6842043995857239, "sibling_score": 0.6842043995857239, "answer_score": 0.4730876863002777, "sibling_qid": "CHE-2026-02-0109-Q001", "sibling_text": "type of ship explain what type is your vessel explain their type and difference", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "KOL-2020-11-1566-Q004", "text": "ME crankcase oil level decreasing, reasons and x questions plenty.", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "LO Sump", "tid": "KOL-2020-11-1566", "tray": "review", "candidates": [ { "answer_id": "LO-SUMP-001", "score": 0.6997926831245422, "sibling_score": 0.6997926831245422, "answer_score": 0.5749593079090118, "sibling_qid": "MUM-2026-07-3791-Q006", "sibling_text": "crankcase oil level is going up", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main-engine LO sump level rising / crankcase oil increasing", "cross_family": false }, { "answer_id": "AE-LOLOSS-003", "score": 0.6967142224311829, "sibling_score": 0.6967142224311829, "answer_score": 0.5971241265535354, "sibling_qid": "MUM-2026-02-1257-Q003", "sibling_text": "lube oil level decreasing in auxiliary engine sump reasons", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Auxiliary engine sump/crankcase level decreases during operation — reasons", "cross_family": false }, { "answer_id": "PURIF-172-004", "score": 0.6706575751304626, "sibling_score": 0.6706575751304626, "answer_score": null, "sibling_qid": "MUM-2024-11-2779-Q004", "sibling_text": "ae lub oil level going down one fine morning reasons wants to hear purifier leaked", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Overflow, leakage & water-in-oil troubleshooting", "cross_family": true } ] }, { "qid": "KOL-2020-11-1888-Q003", "text": "Reasons for refer compressor tripping on hp?", "family": "Refrigeration & AC", "subtopic": "HP / LP Trip", "tid": "KOL-2020-11-1888", "tray": "review", "candidates": [ { "answer_id": "RAC-HPLP-389-001", "score": 0.82686847448349, "sibling_score": 0.82686847448349, "answer_score": 0.5517788797616958, "sibling_qid": "MUM-2017-01-2126-Q009", "sibling_text": "refer compressor hp trip reason", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Refrigeration / AC compressor trips on high pressure — causes and checks", "cross_family": false }, { "answer_id": "REEF-COMP-001", "score": 0.7803077101707458, "sibling_score": 0.7803077101707458, "answer_score": 0.5070539623498916, "sibling_qid": "KOC-2024-07-1370-Q007", "sibling_text": "high pressure trip on refer compressor", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Reefer/AC compressor safeties and cut-outs — safety valve, HP and LP cut-outs", "cross_family": false }, { "answer_id": "REEF-COMP-002", "score": 0.7184699773788452, "sibling_score": 0.7184699773788452, "answer_score": null, "sibling_qid": "KOC-2025-05-1532-Q004", "sibling_text": "ref compressor lo trip working and explanation", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Lube-oil low-pressure / differential-pressure trip — how it works, tests and sets", "cross_family": false } ] }, { "qid": "KOL-2020-11-2406-Q001", "text": "how many gen was onboard? Why 3 ? What is the regulation of generator?", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator / Generator", "tid": "KOL-2020-11-2406", "tray": "new", "candidates": [ { "answer_id": "EDG-P01-001", "score": 0.5516075491905212, "sibling_score": 0.5516075491905212, "answer_score": null, "sibling_qid": "MUM-2025-11-1768-Q004", "sibling_text": "4 emergency generator regulation", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Emergency source of power — the SOLAS requirements", "cross_family": false }, { "answer_id": "LS-IMB-A-001", "score": 0.545368492603302, "sibling_score": 0.545368492603302, "answer_score": null, "sibling_qid": "KOL-2026-05-4097-Q003", "sibling_text": "one generator taking 380 kw another 320 kw in parallel reason", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Two paralleled generators sharing unequal load — cause and correction", "cross_family": false }, { "answer_id": "LS-IMB-A-003", "score": 0.5300701260566711, "sibling_score": 0.5300701260566711, "answer_score": 0.437245374917984, "sibling_qid": "MUM-2021-05-1325-Q002", "sibling_text": "2 generator running in parallel 1 has load of 350 and anothe only 250 kw reason wanted to hear about governor what type of governor used for a e", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "3. Paralleling generators of different ratings, and the emergency-generator question", "cross_family": false } ] }, { "qid": "KOL-2020-11-2406-Q002", "text": "how can u understand the capacity of w gen?", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator / Generator", "tid": "KOL-2020-11-2406", "tray": "new", "candidates": [ { "answer_id": "LS-IMB-A-001", "score": 0.5127093195915222, "sibling_score": 0.5127093195915222, "answer_score": null, "sibling_qid": "KOL-2026-05-4097-Q003", "sibling_text": "one generator taking 380 kw another 320 kw in parallel reason", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Two paralleled generators sharing unequal load — cause and correction", "cross_family": false }, { "answer_id": "LS-IMB-A-003", "score": 0.510048508644104, "sibling_score": 0.510048508644104, "answer_score": null, "sibling_qid": "KOL-2023-06-2663-Q001", "sibling_text": "two generators of unequal capacity you want to run in parallel within rated capacity how will you run", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "3. Paralleling generators of different ratings, and the emergency-generator question", "cross_family": false }, { "answer_id": "PF-D-001", "score": 0.5065979361534119, "sibling_score": 0.5065979361534119, "answer_score": null, "sibling_qid": "KOC-2025-11-1627-Q005", "sibling_text": "power calculation of a generator if your wattmeter is not working", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "How kW, kVA, kVAR, current and the power triangle relate to power factor", "cross_family": false } ] }, { "qid": "KOL-2020-11-2407-Q001", "text": "Chaki int Biswas ext 1 Brushless alternator working 2 Bridge rectifier working 3 What is solid state switc. Why it is called solid state device. Example. Can vaccumor liquid be used as switch?", "family": "Electrical - Generator & Alternator", "subtopic": "Brushless Alternator", "tid": "KOL-2020-11-2407", "tray": "new", "candidates": [ { "answer_id": "DSC-002", "score": 0.6231003999710083, "sibling_score": 0.6231003999710083, "answer_score": null, "sibling_qid": "KOL-2025-03-2765-Q006", "sibling_text": "solid state switches why they are called so", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a semiconductor, why silicon, and why is it called solid state?", "cross_family": true }, { "answer_id": "DIODESO-002", "score": 0.61567223072052, "sibling_score": 0.61567223072052, "answer_score": null, "sibling_qid": "CHE-2026-05-0532-Q015", "sibling_text": "rotating diodes and brushless alternator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Explain the rotating diodes in a brushless alternator and the problems that arise in the brushless excitation system, including diode short circuit", "cross_family": false }, { "answer_id": "BRUSHALT-A-001", "score": 0.6125300526618958, "sibling_score": 0.6125300526618958, "answer_score": null, "sibling_qid": "MUM-2026-05-3324-Q003", "sibling_text": "brushless alternator working", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01 · Working principle of the brushless alternator / brushless excitation systemHigh", "cross_family": false } ] }, { "qid": "KOL-2020-11-2408-Q002", "text": "ICCP ? all details ?", "family": "Electrical - ICCP & Cathodic Protection", "subtopic": "ICCP", "tid": "KOL-2020-11-2408", "tray": "review", "candidates": [ { "answer_id": "ICCP-119-P01-002", "score": 0.7091860175132751, "sibling_score": 0.7091860175132751, "answer_score": 0.35418099611997605, "sibling_qid": "MUM-2026-03-2070-Q002", "sibling_text": "iccp details", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP circuit / control arrangement, construction and main components", "cross_family": false }, { "answer_id": "ICCP-119-P01-001", "score": 0.6944108605384827, "sibling_score": 0.6944108605384827, "answer_score": 0.3847950667142868, "sibling_qid": "KOL-2026-07-4276-Q008", "sibling_text": "iccp in details", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP — purpose, principle and basic working", "cross_family": false }, { "answer_id": "IEEC-003", "score": 0.32246042490005494, "sibling_score": null, "answer_score": 0.32246042490005494, "sibling_qid": "", "sibling_text": "contents and details of the ieec two parts the certificate plus the supplement the record of construction relating to energy efficiency certificate issued under annex vi issuing authority ship particulars surveyed per regulation 5 4 complies with chapter 4 survey date", "sibling_family": "", "via": "answer_title", "answer_title": "Contents and details of the IEEC", "cross_family": false } ] }, { "qid": "KOL-2020-11-2408-Q004", "text": "Ex(d), arrangements", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOL-2020-11-2408", "tray": "new", "candidates": [ { "answer_id": "EXD-EXI-A-002", "score": 0.5343995094299316, "sibling_score": 0.5343995094299316, "answer_score": null, "sibling_qid": "CHE-2026-02-0340-Q003", "sibling_text": "ex d", "sibling_family": "", "via": "sibling", "answer_title": "Ex d (flameproof / explosion-proof) — construction, shipboard applications and maintenance", "cross_family": false }, { "answer_id": "EXD-EXI-A-001", "score": 0.5120012760162354, "sibling_score": 0.5120012760162354, "answer_score": null, "sibling_qid": "KOL-2025-12-2942-Q001", "sibling_text": "ex d and ex i", "sibling_family": "", "via": "sibling", "answer_title": "Ex i (intrinsically safe) vs Ex d (flameproof / explosion-proof) — the difference", "cross_family": false }, { "answer_id": "HAZ-EX-B-001", "score": 0.4956703186035156, "sibling_score": 0.4956703186035156, "answer_score": null, "sibling_qid": "MUM-2026-03-2019-Q002", "sibling_text": "ex i and ex d", "sibling_family": "", "via": "sibling", "answer_title": "Intrinsically safe (Ex i) equipment — what it is, how it works, where it is used, how you identify it", "cross_family": false } ] }, { "qid": "KOL-2020-11-2409-Q001", "text": "ICCP working ?", "family": "Electrical - ICCP & Cathodic Protection", "subtopic": "ICCP", "tid": "KOL-2020-11-2409", "tray": "review", "candidates": [ { "answer_id": "ICCP-119-P01-001", "score": 0.7793720364570618, "sibling_score": 0.7793720364570618, "answer_score": 0.4489606529474258, "sibling_qid": "MUM-2026-06-3465-Q004", "sibling_text": "iccp working", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP — purpose, principle and basic working", "cross_family": false }, { "answer_id": "ICCP-119-P01-002", "score": 0.38809379637241365, "sibling_score": null, "answer_score": 0.38809379637241365, "sibling_qid": "", "sibling_text": "iccp circuit control arrangement construction and main components", "sibling_family": "", "via": "answer_title", "answer_title": "ICCP circuit / control arrangement, construction and main components", "cross_family": false }, { "answer_id": "ICCP-119-P01-003", "score": 0.33582443445920945, "sibling_score": null, "answer_score": 0.33582443445920945, "sibling_qid": "", "sibling_text": "iccp values impressed current meaning anode cathode roles and materials", "sibling_family": "", "via": "answer_title", "answer_title": "ICCP values, impressed-current meaning, anode/cathode roles and materials", "cross_family": false } ] }, { "qid": "KOL-2020-11-2409-Q002", "text": "Alternator stator construction", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator / Generator", "tid": "KOL-2020-11-2409", "tray": "review", "candidates": [ { "answer_id": "ROTSTAT-C-003", "score": 0.795001208782196, "sibling_score": 0.795001208782196, "answer_score": 0.5627491950988769, "sibling_qid": "KOL-2026-01-2951-Q001", "sibling_text": "alternator stator construction", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Stator construction, winding & types", "cross_family": false }, { "answer_id": "ALT-GEN-P03-005", "score": 0.6996363997459412, "sibling_score": 0.6996363997459412, "answer_score": 0.5339942127466202, "sibling_qid": "KOC-2023-02-1231-Q004", "sibling_text": "alternator construction", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Alternator construction, parts, and direct connection", "cross_family": false }, { "answer_id": "BRUSHALT-A-001", "score": 0.6677492260932922, "sibling_score": 0.6677492260932922, "answer_score": null, "sibling_qid": "MUM-2026-06-3522-Q007", "sibling_text": "brushless alternators construction", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01 · Working principle of the brushless alternator / brushless excitation systemHigh", "cross_family": false } ] }, { "qid": "KOL-2020-11-2410-Q003", "text": "Hazardous areas in oil tanker (respect to electrical aspects only).", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOL-2020-11-2410", "tray": "review", "candidates": [ { "answer_id": "TNK-SAFE-BF26-003", "score": 0.7584671378135681, "sibling_score": 0.7584671378135681, "answer_score": 0.6236310988664627, "sibling_qid": "MUM-2026-01-1911-Q002", "sibling_text": "electrical safeties on deck of tanker", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What safeties, including electrical safeties and Ex ratings, are provided on the deck of a tanker?", "cross_family": false }, { "answer_id": "ELEC-SAFE-010", "score": 0.7457048296928406, "sibling_score": 0.7457048296928406, "answer_score": 0.6135352432727813, "sibling_qid": "KOL-2026-07-4259-Q005", "sibling_text": "electrical safety during bunkering on an oil tanker", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Electrical safety during bunkering and tanker bunker operations", "cross_family": false }, { "answer_id": "TNK-SAFE-BF26-002", "score": 0.6971042156219482, "sibling_score": 0.6971042156219482, "answer_score": null, "sibling_qid": "MUM-2023-09-1400-Q003", "sibling_text": "electrical safeties installed inside cargo tank", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What safeties are provided on the cargo tanks of an oil, crude or chemical tanker?", "cross_family": false } ] }, { "qid": "KOL-2020-11-3359-Q002", "text": "What instruction u give to night watch keeper if FWG high salinity alarm comes.", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "KOL-2020-11-3359", "tray": "new", "candidates": [ { "answer_id": "BWTEST-A-002", "score": 0.6424303650856018, "sibling_score": 0.6424303650856018, "answer_score": 0.5213875532150268, "sibling_qid": "MUM-2026-03-1306-Q021", "sibling_text": "frequent salinity alarm coming reasons and why", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "What does high boiler-water chloride, salinity or TDS indicate, and what action is required?", "cross_family": false }, { "answer_id": "FWG-RO-002", "score": 0.6151250600814819, "sibling_score": 0.6151250600814819, "answer_score": 0.5480470240116119, "sibling_qid": "MUM-2024-06-1081-Q005", "sibling_text": "fwg salinity high", "sibling_family": "Fresh Water & Domestic Systems", "via": "sibling", "answer_title": "The FWG salinity alarm keeps sounding. What are the reasons for high salinity?", "cross_family": true }, { "answer_id": "SOLAS12-BC-E-002", "score": 0.5861101150512695, "sibling_score": 0.5861101150512695, "answer_score": null, "sibling_qid": "KOL-2019-09-0324-Q003", "sibling_text": "additional safety of bulk carriers water ingress alarm details what will be your actions when you encounter water ingress alarm in a hold during your watch at night 4 unclos", "sibling_family": "", "via": "sibling", "answer_title": "Flooding / water-ingress watch actions, detection arrangement & sailing with a hold empty", "cross_family": false } ] }, { "qid": "KOL-2020-11-3359-Q003", "text": "Improved high lift safety valve overhaul ( basically asked what checks u carry out during overhaul)", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2020-11-3359", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P01-001", "score": 0.8424273133277893, "sibling_score": 0.8424273133277893, "answer_score": null, "sibling_qid": "KOL-2026-01-3900-Q005", "sibling_text": "check on safety valve during overhaul", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.8233640789985657, "sibling_score": 0.8233640789985657, "answer_score": null, "sibling_qid": "KOC-2026-02-1106-Q007", "sibling_text": "improved high lift safety valve overhaul and checks", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "EXV-P02-001", "score": 0.7067674398422241, "sibling_score": 0.7067674398422241, "answer_score": null, "sibling_qid": "KOL-2024-06-3695-Q004", "sibling_text": "exhaust valve overhauled and ready what checks you will carry out", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve overhaul & dismantling — procedure and precautions", "cross_family": true } ] }, { "qid": "KOL-2020-11-3360-Q006", "text": "You do not have ships power and you need to tow the ship. so what position you will keep your rudder.why? What is hydraulic and machanical locking of rudder.", "family": "Steering Gear & Hydraulics", "subtopic": "Tiller / Rudder Stock", "tid": "KOL-2020-11-3360", "tray": "review", "candidates": [ { "answer_id": "STEER-055-A-004", "score": 0.7351536154747009, "sibling_score": 0.7351536154747009, "answer_score": null, "sibling_qid": "KOL-2021-08-1618-Q004", "sibling_text": "rudder hydraulic locking", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Hydraulic faults — air, sluggish response, locking, leakage", "cross_family": false }, { "answer_id": "SG-055-B-003", "score": 0.7132619023323059, "sibling_score": 0.7132619023323059, "answer_score": null, "sibling_qid": "KOL-2022-09-1711-Q005", "sibling_text": "type of steering gear in your ship redundancy how can we hydraulically lock steering gear", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Redundancy and the single-failure requirement (50% / 100%)", "cross_family": false }, { "answer_id": "SG-RAM-003", "score": 0.709962010383606, "sibling_score": 0.709962010383606, "answer_score": null, "sibling_qid": "KOL-2021-07-1600-Q004", "sibling_text": "what type of ram was in your ship ram rudder hydraulic locking in ram steering gear", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Four-ram steering gear — bridge-to-rudder working, 100% capacity not redundancy, and hydraulic locking", "cross_family": false } ] }, { "qid": "KOL-2020-11-3361-Q001", "text": "Anchor lifting equipment survey", "family": "Auxiliary Equipment", "subtopic": "Windlass / Winch", "tid": "KOL-2020-11-3361", "tray": "review", "candidates": [ { "answer_id": "WIND-WNCH-010", "score": 0.7965012192726135, "sibling_score": 0.7965012192726135, "answer_score": null, "sibling_qid": "KOL-2021-09-3460-Q003", "sibling_text": "anchor chain hoisting equipment survey", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Survey prep, checks, routines and maintenance", "cross_family": false }, { "answer_id": "ANCH-CHN-A-005", "score": 0.769528865814209, "sibling_score": 0.769528865814209, "answer_score": null, "sibling_qid": "KOL-2021-12-3493-Q002", "sibling_text": "survey of anchor lifting gear hause pipe gypsy survey", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Hawse pipe, spurling pipe & chain clearance", "cross_family": false }, { "answer_id": "ANCHR-B-002", "score": 0.6882877945899963, "sibling_score": 0.6882877945899963, "answer_score": 0.4728692233562469, "sibling_qid": "KOL-2022-05-1684-Q005", "sibling_text": "anchor survey", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Anchor & cable survey in dry dock — the systematic inspection", "cross_family": false } ] }, { "qid": "KOL-2020-11-3362-Q003", "text": "Rudder inspection, how to check crack on rudder", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2020-11-3362", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.6926455497741699, "sibling_score": 0.6926455497741699, "answer_score": null, "sibling_qid": "KOL-2018-02-3123-Q004", "sibling_text": "drydock checks on rudder stern tube propeller all rudder clearences taking and values repairs cracks got funtion 6", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "DUS-P5-05", "score": 0.5649302273988723, "sibling_score": null, "answer_score": 0.5649302273988723, "sibling_qid": "", "sibling_text": "rudder checks and rudder blade tightness leak test in drydock visual checks coating condition cavitation erosion on the blade leading edge propeller side face sacrificial anodes against the approved cathodic protection plan grounding continuity against the approved acceptance criterion plate and weld cracks pintle clearance measured with feeler the numerical acceptance limit is class specific and ", "sibling_family": "", "via": "answer_title", "answer_title": "Rudder checks and rudder-blade tightness/leak test in drydock", "cross_family": false }, { "answer_id": "DDHSC-003", "score": 0.4844803363084793, "sibling_score": null, "answer_score": 0.4844803363084793, "sibling_qid": "", "sibling_text": "what checks do you carry out on the hull propeller and rudder in drydock including jumping clearance hull shell plating cracks coating weld seams thickness gauging areas propeller erosion pitting cavitation cracks dye penetrant cone cap tight rope guard propeller drop wear", "sibling_family": "", "via": "answer_title", "answer_title": "What checks do you carry out on the hull, propeller and rudder in drydock, including jumping clearance?", "cross_family": false } ] }, { "qid": "KOL-2020-11-3362-Q005", "text": "Meat room temp not coming down, 3E saying TEV not working, how to make sure before proceeding for TEV malfunction Please keep posting questions guys. Thanks", "family": "Refrigeration & AC", "subtopic": "TEV / TXV", "tid": "KOL-2020-11-3362", "tray": "review", "candidates": [ { "answer_id": "TEV-TXV-007", "score": 0.8680116534233093, "sibling_score": 0.8680116534233093, "answer_score": 0.6038288921117783, "sibling_qid": "KOL-2025-12-3893-Q002", "sibling_text": "meat room temp not coming je said to you tev not working how will you ensure only tev has problem before opening", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Faulty TEV in a meat/fish room with no spare — diagnosis and management", "cross_family": false }, { "answer_id": "REFR-FLT-001", "score": 0.862872302532196, "sibling_score": 0.862872302532196, "answer_score": null, "sibling_qid": "KOL-2020-12-3367-Q002", "sibling_text": "meat room temperature not coming down 3eng said tev working fine reasons ur action", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Provision/cold room temperature: will not pull down, runs too low, or will not hold", "cross_family": false }, { "answer_id": "TEV-TXV-005", "score": 0.7121298909187317, "sibling_score": 0.7121298909187317, "answer_score": null, "sibling_qid": "KOL-2022-03-3520-Q004", "sibling_text": "tev malfunctioning what to do and cross question degree of super heat", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Throttling process and superheat control across the TEV", "cross_family": false } ] }, { "qid": "KOL-2020-11-3363-Q001", "text": "After decard all done, final check before handing over to engine staff. Don't know what he wants exactly.", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Engine Not Starting", "tid": "KOL-2020-11-3363", "tray": "new", "candidates": [ { "answer_id": "ERC-345-003", "score": 0.6136469841003418, "sibling_score": 0.6136469841003418, "answer_score": null, "sibling_qid": "KOC-2026-08-2108-Q014", "sibling_text": "e r crane checks before before main engine decarb", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Pre-lift checks and maintenance", "cross_family": true }, { "answer_id": "DDHSC-004", "score": 0.6134824752807617, "sibling_score": 0.6134824752807617, "answer_score": null, "sibling_qid": "MUM-2026-03-2935-Q007", "sibling_text": "as second engineer all after docking checks", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "What checks are carried out after docking, and what are the first checks once the ship is out of dock?", "cross_family": true }, { "answer_id": "AEDEC-291-003", "score": 0.592121958732605, "sibling_score": 0.592121958732605, "answer_score": 0.5193629205226898, "sibling_qid": "KOL-2024-01-4031-Q002", "sibling_text": "ae over hauling completed lube oil flow satisfactory no jkt water leaking what will u furter check", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "3. Pre-start checks after decarb / recommissioning", "cross_family": true } ] }, { "qid": "KOL-2020-11-3364-Q001", "text": "Which engine u did...I said mc c ..he gave tough look then I said 6S 60 MCC...he got angry ...he said is this some kind of cricket club u r mentioning then I realized my mistake and said sorry sir it is man b and w 6s 60 MCC", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOL-2020-11-3364", "tray": "review", "candidates": [ { "answer_id": "MCC-MEB-P01-001", "score": 0.672404944896698, "sibling_score": 0.672404944896698, "answer_score": 0.4370800077915192, "sibling_qid": "MUM-2026-02-2576-Q003", "sibling_text": "engine type mc c", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "MC-C (\"Compact\") engine — design and the main constructional differences from MC", "cross_family": false }, { "answer_id": "ALT-MTN-B-001", "score": 0.6674661636352539, "sibling_score": 0.6674661636352539, "answer_score": null, "sibling_qid": "MUM-2026-02-1281-Q001", "sibling_text": "main engine specification mc c", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Routine onboard alternator maintenance checks", "cross_family": false }, { "answer_id": "MCC-MEB-P02-002", "score": 0.6308128833770752, "sibling_score": 0.6308128833770752, "answer_score": 0.45011335909366607, "sibling_qid": "MUM-2026-06-3364-Q007", "sibling_text": "which engine mc c", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "MAN B&W nomenclature — and what MC, MC-C, ME-B, ME-C actually mean", "cross_family": true } ] }, { "qid": "KOL-2020-11-3366-Q006", "text": "by Rao..how to check ovality of connecting rod in AE..( I answered but he wanted to listen as per manual, specific answer step by step)", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Crankshaft / Crankpin / Bearings", "tid": "KOL-2020-11-3366", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-004", "score": 0.7762178778648376, "sibling_score": 0.7762178778648376, "answer_score": 0.6438521444797516, "sibling_qid": "CHE-2025-08-0413-Q002", "sibling_text": "ae conn rod ovality checking", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE connecting-rod inspection — ovality, trueness, serrations, action if out of limit", "cross_family": false }, { "answer_id": "AECR-651-002", "score": 0.7711354494094849, "sibling_score": 0.7711354494094849, "answer_score": 0.5765431642532348, "sibling_qid": "CHE-2025-08-0201-Q015", "sibling_text": "ae connecting rod checks ovality", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you take the ovality of the AE big end in a 4-stroke, and what are the ovality limits and maximum value?", "cross_family": true }, { "answer_id": "CRB-014", "score": 0.5976070046424865, "sibling_score": null, "answer_score": 0.5976070046424865, "sibling_qid": "", "sibling_text": "how do you check connecting rod ovality and where are oversize and undersize bearings used ovality check as crb 01 shells out measure the housing bore across two perpendicular diameters at several stations with an inside micrometer or bore gauge near the serrations the difference between the diameters is the ovality undersize bearing concept suits a crankpin journal reground to a smaller undersize", "sibling_family": "", "via": "answer_title", "answer_title": "How do you check connecting rod ovality, and where are oversize and undersize bearings used?", "cross_family": false } ] }, { "qid": "KOL-2020-12-0447-Q002", "text": "Type of ship sailed. TEU", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2020-12-0447", "tray": "review", "candidates": [ { "answer_id": "SOLAS12-BC-A-001", "score": 0.760838508605957, "sibling_score": 0.760838508605957, "answer_score": 0.4706737011671066, "sibling_qid": "MUM-2026-06-3382-Q001", "sibling_text": "type of ship sailed bulk carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "SOLAS definition and scope of a bulk carrier", "cross_family": false }, { "answer_id": "COT-01", "score": 0.7417545914649963, "sibling_score": 0.7417545914649963, "answer_score": 0.46633468866348265, "sibling_qid": "KOC-2026-04-0892-Q003", "sibling_text": "type of ship sailed tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Oil-tanker types, definitions and cargo capability", "cross_family": false }, { "answer_id": "DB-TORBOX-B-003", "score": 0.727183997631073, "sibling_score": 0.727183997631073, "answer_score": null, "sibling_qid": "CHE-2026-04-0150-Q001", "sibling_text": "type of ship sailed container", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "What is a torsion box — definition and construction", "cross_family": false } ] }, { "qid": "KOL-2020-12-0447-Q003", "text": "SOLAS ch-6. VGM and how to verify it.", "family": "SOLAS", "subtopic": "Container Stability", "tid": "KOL-2020-12-0447", "tray": "new", "candidates": [ { "answer_id": "BFS-257-010", "score": 0.35705286264419556, "sibling_score": 0.35705286264419556, "answer_score": null, "sibling_qid": "MUM-2025-05-0277-Q022", "sibling_text": "how to confirm if it s done properly got function 6", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "How to confirm soot blowing has been carried out effectively", "cross_family": true }, { "answer_id": "CONT-STAB-003", "score": 0.33361297845840454, "sibling_score": 0.33361297845840454, "answer_score": 0.30757393836975094, "sibling_qid": "KOC-2023-03-1236-Q008", "sibling_text": "what is vgm in containers why was it implemented he wanted to hear stability calculations", "sibling_family": "", "via": "sibling", "answer_title": "Verified gross mass (VGM) — what it is, why it was implemented, and its link to stability", "cross_family": false }, { "answer_id": "VTA-TC-001", "score": 0.32322943210601807, "sibling_score": 0.32322943210601807, "answer_score": null, "sibling_qid": "KOL-2026-04-2057-Q002", "sibling_text": "vgt explain", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "What VTA / VGT is and how it works", "cross_family": true } ] }, { "qid": "KOL-2020-12-0448-Q004", "text": "ism is for what?", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOL-2020-12-0448", "tray": "new", "candidates": [ { "answer_id": "ISM-DPA-002", "score": 0.6432042717933655, "sibling_score": 0.6432042717933655, "answer_score": null, "sibling_qid": "KOC-2023-03-0172-Q004", "sibling_text": "ism who is responsible for ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "DPA basis : which convention, which code, and who is responsible for ISM", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.6198003888130188, "sibling_score": 0.6198003888130188, "answer_score": null, "sibling_qid": "MUM-2024-07-2766-Q004", "sibling_text": "what is purpose of ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "ISM-AUD-P02-002", "score": 0.6059998869895935, "sibling_score": 0.6059998869895935, "answer_score": 0.32530713081359863, "sibling_qid": "KOC-2026-01-2087-Q013", "sibling_text": "what is the purpose of ism internal", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM Code — what it is, purpose, objectives and structure", "cross_family": false } ] }, { "qid": "KOL-2020-12-1567-Q004", "text": "What modification done in manufacturing of crankshaft to avoid failures.", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft Material", "tid": "KOL-2020-12-1567", "tray": "review", "candidates": [ { "answer_id": "HT-A-001", "score": 0.6523314118385315, "sibling_score": 0.6523314118385315, "answer_score": null, "sibling_qid": "MUM-2026-05-3283-Q006", "sibling_text": "crankshaft material and heat treatment", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Heat treatment: what it is, the main methods, and why it is done", "cross_family": false }, { "answer_id": "CRK-DEFL-001", "score": 0.6479175686836243, "sibling_score": 0.6479175686836243, "answer_score": null, "sibling_qid": "CHE-2026-05-0648-Q005", "sibling_text": "stresses on crank shaft not accepting any stress", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Purpose, timing and scope of crankshaft deflection", "cross_family": false }, { "answer_id": "CFF-P02-005", "score": 0.646243155002594, "sibling_score": 0.646243155002594, "answer_score": 0.5120417267084122, "sibling_qid": "KOL-2018-10-1429-Q005", "sibling_text": "what are the measures taken to tackle fatigue failure of crankshaft what measures are taken by engine maker to tackle fatigue", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Reducing and preventing fatigue failure", "cross_family": true } ] }, { "qid": "KOL-2020-12-1567-Q005", "text": "Define osmosis. What process is used for producing water related to osmosis onboard. Name all stages.", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "KOL-2020-12-1567", "tray": "new", "candidates": [ { "answer_id": "FWG-RO-006", "score": 0.5507422685623169, "sibling_score": 0.5507422685623169, "answer_score": 0.4642044723033905, "sibling_qid": "CHE-2026-05-0588-Q004", "sibling_text": "osmosis and reverse osmosis", "sibling_family": "Fresh Water & Domestic Systems", "via": "sibling", "answer_title": "Explain reverse osmosis — the principle and flow, pre- and post-treatment, and what chemical is dosed before the RO.", "cross_family": true }, { "answer_id": "RVSG-213-001", "score": 0.4740481674671173, "sibling_score": 0.4740481674671173, "answer_score": null, "sibling_qid": "KOL-2022-10-1713-Q005", "sibling_text": "rotary vane system and vane material rao difference bw osmosis n reverse osmosis", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Construction, main parts, materials & vane fitment", "cross_family": true }, { "answer_id": "OWS-15PPM-004", "score": 0.45111024379730225, "sibling_score": 0.45111024379730225, "answer_score": null, "sibling_qid": "CHE-2025-11-0452-Q001", "sibling_text": "what is working principle of ows what happens in first chamber don t say first chamber is gravity separation", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": true } ] }, { "qid": "KOL-2020-12-1570-Q004", "text": "7 methods of bearing damage. Name any 3.", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "", "tid": "KOL-2020-12-1570", "tray": "new", "candidates": [ { "answer_id": "DS-BASIC-P01-001", "score": 0.4534412622451782, "sibling_score": 0.4534412622451782, "answer_score": 0.3094751536846161, "sibling_qid": "KOL-2023-03-0728-Q003", "sibling_text": "damage stability how many types", "sibling_family": "", "via": "sibling", "answer_title": "Damage stability: definition, meaning and oral overview", "cross_family": false }, { "answer_id": "WMAT-170-004", "score": 0.4343205988407135, "sibling_score": 0.4343205988407135, "answer_score": null, "sibling_qid": "KOL-2024-05-1778-Q004", "sibling_text": "3 embediability of bearing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Embeddability and conformability of bearing materials", "cross_family": false }, { "answer_id": "WMAT-170-007", "score": 0.431074321269989, "sibling_score": 0.431074321269989, "answer_score": null, "sibling_qid": "KOL-2022-10-1714-Q005", "sibling_text": "defects in bearing corrosion crack bulging wipe out", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Tin-oxide corrosion of white metal and its prevention", "cross_family": false } ] }, { "qid": "KOL-2020-12-1570-Q007", "text": "Crankshaft material and what hardening process carried out. Explain nitriding.", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft Material", "tid": "KOL-2020-12-1570", "tray": "new", "candidates": [ { "answer_id": "HEAT-TRT-C-001", "score": 0.6470442414283752, "sibling_score": 0.6470442414283752, "answer_score": 0.47190042734146115, "sibling_qid": "MUM-2023-07-2181-Q004", "sibling_text": "nitriding process why done which components of main engine why hardness required also case hardening", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Nitriding — process, gas and where it is used on board", "cross_family": true }, { "answer_id": "HT-A-001", "score": 0.6452287435531616, "sibling_score": 0.6452287435531616, "answer_score": null, "sibling_qid": "MUM-2026-03-2609-Q005", "sibling_text": "crankshaft material and heat treatment process", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Heat treatment: what it is, the main methods, and why it is done", "cross_family": false }, { "answer_id": "HEAT-TRT-C-002", "score": 0.45280133485794066, "sibling_score": null, "answer_score": 0.45280133485794066, "sibling_qid": "", "sibling_text": "induction hardening and flame hardening principle and use both heat the surface above the upper critical austenitising temperature then quench the opposite of nitriding induction high frequency ac in a coil induces eddy currents the steel s own resistance heats the surface in seconds", "sibling_family": "", "via": "answer_title", "answer_title": "Induction hardening and flame hardening — principle and use", "cross_family": false } ] }, { "qid": "KOL-2020-12-1889-Q004", "text": "A/E overhauled and checks prior handover to ship staff", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE Decarb", "tid": "KOL-2020-12-1889", "tray": "new", "candidates": [ { "answer_id": "DUS-P1-01", "score": 0.575562596321106, "sibling_score": 0.575562596321106, "answer_score": null, "sibling_qid": "KOL-2019-02-3211-Q004", "sibling_text": "checks jst before entering drydock as a 2 e", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Drydock preparation as 2E — full workflow from office confirmation to entry", "cross_family": true }, { "answer_id": "CYL-LINER-P03-007", "score": 0.5662404894828796, "sibling_score": 0.5662404894828796, "answer_score": null, "sibling_qid": "KOL-2021-03-1582-Q003", "sibling_text": "checks in liner during overhaul", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Cylinder liner checks at overhaul, decarb and under-piston inspection", "cross_family": true }, { "answer_id": "AEDEC-291-003", "score": 0.5618025660514832, "sibling_score": 0.5618025660514832, "answer_score": null, "sibling_qid": "KOL-2024-01-4031-Q002", "sibling_text": "ae over hauling completed lube oil flow satisfactory no jkt water leaking what will u furter check", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "3. Pre-start checks after decarb / recommissioning", "cross_family": false } ] }, { "qid": "KOL-2020-12-1890-Q001", "text": "(Steam) Gen intro abt company & written cleared or not..", "family": "Status & Introduction", "subtopic": "Company Introduction", "tid": "KOL-2020-12-1890", "tray": "new", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.4492911398410797, "sibling_score": 0.4492911398410797, "answer_score": null, "sibling_qid": "KOC-2026-08-2106-Q001", "sibling_text": "status of written oral company type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.43209439516067505, "sibling_score": 0.43209439516067505, "answer_score": null, "sibling_qid": "MUM-2026-05-3248-Q001", "sibling_text": "introduction sea time company pre sea ship type engine type me", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "CASC-COND-003", "score": 0.39443883299827576, "sibling_score": 0.39443883299827576, "answer_score": null, "sibling_qid": "KOL-2021-07-3411-Q004", "sibling_text": "you are a duty engineer from hotwell coming steam is your action and what u checks 5 forgotten", "sibling_family": "Boilers - 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why butterfly and not gate, and where they are positioned", "cross_family": false }, { "answer_id": "GV-330-001", "score": 0.6767135858535767, "sibling_score": 0.6767135858535767, "answer_score": 0.523388323187828, "sibling_qid": "KOC-2026-08-2117-Q004", "sibling_text": "globe valve or gate valve draw anyone", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Draw and explain the gate valve — construction, main parts, operation & onboard use", "cross_family": false } ] }, { "qid": "KOL-2020-12-3369-Q003", "text": "Your ship is going to sub zero deg area, as 2nd eng preparation.. And x question.", "family": "Cargo Ops - Bulk Carriers", "subtopic": "Heavy Weather Ballast", "tid": "KOL-2020-12-3369", "tray": "new", "candidates": [ { "answer_id": "LB-SURV-C-008", "score": 0.6313211917877197, "sibling_score": 0.6313211917877197, "answer_score": 0.4287567317485809, "sibling_qid": "CHE-2026-05-0590-Q003", "sibling_text": "ship going to cold climate region prepartion for lifeboat engine i said about antifreeze lube and fuel oil property but expect something with design by maker i don t know", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat engine — checks, cold-climate preparation and self-contained air-support system", "cross_family": true }, { "answer_id": "IR-TEST-D-011", "score": 0.6062120795249939, "sibling_score": 0.6062120795249939, "answer_score": 0.43596084117889405, "sibling_qid": "MUM-2025-12-1833-Q003", "sibling_text": "what will you do to ensure that insulation of motors remain intact when ship is at drydock in cold region", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Keeping motor insulation intact in a cold-region drydock", "cross_family": true }, { "answer_id": "REEF-PREP-002", "score": 0.5859354734420776, "sibling_score": 0.5859354734420776, "answer_score": null, "sibling_qid": "MUM-2026-02-1982-Q003", "sibling_text": "if you want to load reefers what preparations will you make as a second engg", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Loading reefers — second engineer preparation and checks", "cross_family": true } ] }, { "qid": "KOL-2020-12-3370-Q002", "text": "Type of ship. Single hull or double hull.", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2020-12-3370", "tray": "review", "candidates": [ { "answer_id": "SHIPTYPE-BTC-004", "score": 0.6782213449478149, "sibling_score": 0.6782213449478149, "answer_score": null, "sibling_qid": "KOC-2025-03-0555-Q005", "sibling_text": "midship section oil tanker crossed on single hull vs double hull", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Oil tanker hull construction — and its construction-related electrical safety", "cross_family": true }, { "answer_id": "EXHV-P01-001", "score": 0.6753950715065002, "sibling_score": 0.6753950715065002, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.6634464859962463, "sibling_score": 0.6634464859962463, "answer_score": 0.48325644731521605, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "KOL-2021-01-0449-Q004", "text": "Tpa and immersion suit diffrance.", "family": "SOLAS - LSA & Lifeboats", "subtopic": "LSA Code", "tid": "KOL-2021-01-0449", "tray": "new", "candidates": [ { "answer_id": "SCBA-EEBD-005", "score": 0.5489970445632935, "sibling_score": 0.5489970445632935, "answer_score": 0.39477687776088716, "sibling_qid": "KOL-2017-01-0042-Q005", "sibling_text": "difference between firemans outfit ppa immerssion suit when it is used", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fireman's outfit vs PPA vs immersion suit — what each is, when used", "cross_family": true }, { "answer_id": "LB-SURV-C-003", "score": 0.48174554109573364, "sibling_score": 0.48174554109573364, "answer_score": null, "sibling_qid": "CHE-2026-02-0103-Q002", "sibling_text": "immersion suit monthly 6 month and annual maintenance", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Routine maintenance ladder — weekly / monthly / quarterly / 6-monthly onboard checks", "cross_family": false }, { "answer_id": "LSA-LB-A-008", "score": 0.41095173358917236, "sibling_score": 0.41095173358917236, "answer_score": null, "sibling_qid": "CHE-2025-12-0328-Q005", "sibling_text": "lifeboat sprinkler system testing without immersing into water", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Water-spray (sprinkler) system — testing without launching", "cross_family": false } ] }, { "qid": "KOL-2021-01-0449-Q005", "text": "Certificate under annex 3.", "family": "MARPOL - Annex III", "subtopic": "Harmful Substances in Packaged Form", "tid": "KOL-2021-01-0449", "tray": "review", "candidates": [ { "answer_id": "AVICERT-001", "score": 0.653326153755188, "sibling_score": 0.653326153755188, "answer_score": null, "sibling_qid": "KOC-2026-03-0862-Q008", "sibling_text": "certificates come under annex", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What certificates and documents are required to be carried on board under MARPOL Annex VI?", "cross_family": true }, { "answer_id": "CERT-LIST-P03-001", "score": 0.6326296925544739, "sibling_score": 0.6326296925544739, "answer_score": 0.4340935707092285, "sibling_qid": "MUM-2025-08-0375-Q011", "sibling_text": "certificates under annex ii", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "MARPOL, AFS & annex-specific certificates", "cross_family": true }, { "answer_id": "CHEM-PA-004", "score": 0.632377028465271, "sibling_score": 0.632377028465271, "answer_score": null, "sibling_qid": "MUM-2026-04-2987-Q001", "sibling_text": "certificates under annex ii", "sibling_family": "MARPOL - Annex II (NLS)", "via": "sibling", "answer_title": "Certificates, documents and records under Annex II", "cross_family": true } ] }, { "qid": "KOL-2021-01-0450-Q001", "text": "Why rudder movement is restricted to only 35 to 30", "family": "Steering Gear & Hydraulics", "subtopic": "Steering Going 35-30 Slow", "tid": "KOL-2021-01-0450", "tray": "new", "candidates": [ { "answer_id": "RUD-DROP-003", "score": 0.5682976841926575, "sibling_score": 0.5682976841926575, "answer_score": 0.36075669527053833, "sibling_qid": "MUM-2025-08-2350-Q010", "sibling_text": "5 rudder drop reach maxm in port", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Rudder drop at the limit: the decision", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.5642059445381165, "sibling_score": 0.5642059445381165, "answer_score": null, "sibling_qid": "KOL-2018-04-1367-Q004", "sibling_text": "3 rudder clearence", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "STEER-055-A-004", "score": 0.5500065684318542, "sibling_score": 0.5500065684318542, "answer_score": null, "sibling_qid": "KOL-2019-02-3212-Q005", "sibling_text": "rudder is taking more to come from one side to the other reasons and maintenance", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Hydraulic faults — air, sluggish response, locking, leakage", "cross_family": false } ] }, { "qid": "KOL-2021-01-0451-Q005", "text": "function u r appearing for what is all about this function. Why it is soo important . Asked about convention, administration.\twho inforce .", "family": "IMO Structure & Conventions", "subtopic": "Convention Administration / Enforcement", "tid": "KOL-2021-01-0451", "tray": "new", "candidates": [ { "answer_id": "IMO-CODES-P02-001", "score": 0.5711585879325867, "sibling_score": 0.5711585879325867, "answer_score": null, "sibling_qid": "KOC-2024-08-0398-Q015", "sibling_text": "wat is convention", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "IMO instruments: convention, code, protocol, amendment, regulation, resolution and rule", "cross_family": false }, { "answer_id": "IMO-CODES-P02-002", "score": 0.547481894493103, "sibling_score": 0.547481894493103, "answer_score": null, "sibling_qid": "KOC-2024-12-0489-Q002", "sibling_text": "what is acceding to convention", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Tacit acceptance, ratification, acceptance, approval and accession", "cross_family": false }, { "answer_id": "IMO-CC-P01-001", "score": 0.5323498845100403, "sibling_score": 0.5323498845100403, "answer_score": null, "sibling_qid": "KOC-2026-09-2192-Q012", "sibling_text": "funs of facilitation committee", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Explain the structure and organs of IMO — Assembly, Council, Committees and Secretariat.", "cross_family": false } ] }, { "qid": "KOL-2021-01-0451-Q006", "text": "Does Classification society issue statuatory certificate.", "family": "Surveys - Statutory", "subtopic": "PSC / Flag / RO / CIC / MoU", "tid": "KOL-2021-01-0451", "tray": "review", "candidates": [ { "answer_id": "IACS-324-005", "score": 0.7793112397193909, "sibling_score": 0.7793112397193909, "answer_score": 0.4974690020084381, "sibling_qid": "KOL-2021-12-0583-Q006", "sibling_text": "statutory certificate definition ro classification society difference", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "5. What is the difference between a classification society, a Recognized Organization, and statutory certification?", "cross_family": false }, { "answer_id": "CERT-LIST-P01-001", "score": 0.7233917713165283, "sibling_score": 0.7233917713165283, "answer_score": null, "sibling_qid": "KOL-2025-07-1992-Q007", "sibling_text": "statutory certificate name given by classification socity", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "List the statutory certificates carried onboard a ship.", "cross_family": false }, { "answer_id": "CERT-LIST-P03-002", "score": 0.7066069841384888, "sibling_score": 0.7066069841384888, "answer_score": null, "sibling_qid": "KOC-2024-09-0408-Q011", "sibling_text": "statutory certificate expects class of registry certificate also", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Certificate of Registration / Registry — nationality & particulars", "cross_family": false } ] }, { "qid": "KOL-2021-01-0454-Q006", "text": "Hogging sagging and why important in bulk carrier", "family": "Ship Construction & Stability", "subtopic": "", "tid": "KOL-2021-01-0454", "tray": "new", "candidates": [ { "answer_id": "SOLAS12-BC-F-003", "score": 0.5115838050842285, "sibling_score": 0.5115838050842285, "answer_score": null, "sibling_qid": "KOC-2024-10-0427-Q002", "sibling_text": "bulk carrier cross section hopper tank significance", "sibling_family": "", "via": "sibling", "answer_title": "Bulk-carrier midship cross-section — draw & explain", "cross_family": false }, { "answer_id": "LL-CONV-P06-001", "score": 0.50252366065979, "sibling_score": 0.50252366065979, "answer_score": null, "sibling_qid": "MUM-2026-02-0777-Q003", "sibling_text": "why bulk carrier having more freeboard lots of x", "sibling_family": "", "via": "sibling", "answer_title": "LLC-P06-01 - Ship categories and freeboard differences: Type A, Type B and practical ship cases", "cross_family": false }, { "answer_id": "PAR-ROLL-003", "score": 0.49402639269828796, "sibling_score": 0.49402639269828796, "answer_score": null, "sibling_qid": "MUM-2026-06-3643-Q001", "sibling_text": "parametric rolling why it doesn t happened in bulk carrier which part of the ship causes it", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "03. Why container / car-carrier / Ro-Ro ships, and why not bulk carriers", "cross_family": false } ] }, { "qid": "KOL-2021-01-0455-Q001", "text": "Solid Ballast", "family": "", "subtopic": "GM / KM / KB / Metacentric", "tid": "KOL-2021-01-0455", "tray": "new", "candidates": [ { "answer_id": "BWM-D1D2-P03-001", "score": 0.5626610517501831, "sibling_score": 0.5626610517501831, "answer_score": null, "sibling_qid": "KOC-2022-09-0099-Q007", "sibling_text": "ballast d2 standard", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Regulation D-2 — ballast water performance / discharge standardHigh", "cross_family": false }, { "answer_id": "COT-14", "score": 0.555733323097229, "sibling_score": 0.555733323097229, "answer_score": null, "sibling_qid": "KOL-2026-07-4253-Q003", "sibling_text": "segregated ballast and and capacity", "sibling_family": "Ship Construction", "via": "sibling", "answer_title": "SBT applicability, capacity and draught criteria", "cross_family": false }, { "answer_id": "COT-13", "score": 0.5417121052742004, "sibling_score": 0.5417121052742004, "answer_score": null, "sibling_qid": "KOL-2025-08-1026-Q002", "sibling_text": "open ballast", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Segregated, clean, dedicated and open ballast", "cross_family": false } ] }, { "qid": "KOL-2021-01-0457-Q002", "text": "which ship u hv done", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2021-01-0457", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.7805126905441284, "sibling_score": 0.7805126905441284, "answer_score": null, "sibling_qid": "MUM-2026-03-2588-Q001", "sibling_text": "which ships u have done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "SOLAS12-BC-A-001", "score": 0.7077226638793945, "sibling_score": 0.7077226638793945, "answer_score": null, "sibling_qid": "MUM-2026-04-2958-Q001", "sibling_text": "ship done bulk carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "SOLAS definition and scope of a bulk carrier", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.667725682258606, "sibling_score": 0.667725682258606, "answer_score": null, "sibling_qid": "MUM-2026-02-0741-Q001", "sibling_text": "which ship u have sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false } ] }, { "qid": "KOL-2021-01-0457-Q003", "text": "how to calculate capacity of container ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2021-01-0457", "tray": "review", "candidates": [ { "answer_id": "STAB-BOOK-006", "score": 0.6636285781860352, "sibling_score": 0.6636285781860352, "answer_score": 0.5499474793672562, "sibling_qid": "KOC-2026-03-0880-Q009", "sibling_text": "explain capacity plan of ship", "sibling_family": "", "via": "sibling", "answer_title": "Capacity and stability information from the booklet (capacity plan)", "cross_family": false }, { "answer_id": "DCP-FIXED-A-003", "score": 0.638730525970459, "sibling_score": 0.638730525970459, "answer_score": null, "sibling_qid": "MUM-2026-03-2929-Q004", "sibling_text": "capacity of dcp on ship", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Capacities, pressures, relief settings, regulations and calculation", "cross_family": true }, { "answer_id": "TONN-001", "score": 0.6353309154510498, "sibling_score": 0.6353309154510498, "answer_score": null, "sibling_qid": "KOL-2025-09-1044-Q006", "sibling_text": "gross tonnage how to calculate", "sibling_family": "", "via": "sibling", "answer_title": "Gross Tonnage (GT / GRT) — basis, units, significance", "cross_family": false } ] }, { "qid": "KOL-2021-01-0457-Q005", "text": "ism code, if it is applicable for machinery or not,what all safety drill carried out regarding this..who is incharge of that drill", "family": "ISM Code", "subtopic": "SMS / Functional Requirements", "tid": "KOL-2021-01-0457", "tray": "new", "candidates": [ { "answer_id": "ISM-AUD-P02-004", "score": 0.5858859419822693, "sibling_score": 0.5858859419822693, "answer_score": null, "sibling_qid": "KOC-2024-02-0301-Q014", "sibling_text": "drills specified in sms explained fire abandon enclosed emergency steering as per lsa code", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "SMS contents, manuals, documents and drill records onboard", "cross_family": false }, { "answer_id": "ISM-AUD-P02-006", "score": 0.5779451727867126, "sibling_score": 0.5779451727867126, "answer_score": null, "sibling_qid": "KOL-2025-09-1090-Q003", "sibling_text": "ism code chapter and management review", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Master's review, company / management review and change management", "cross_family": false }, { "answer_id": "ISM-2E-C-001", "score": 0.5707986950874329, "sibling_score": 0.5707986950874329, "answer_score": null, "sibling_qid": "KOC-2022-11-0108-Q003", "sibling_text": "ism audit by external surveyor what all preparations as 2e other than documentation and machinery side preparations training or crew drills etc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM audit / survey preparation as Second Engineer — beyond the paperwork", "cross_family": false } ] }, { "qid": "KOL-2021-01-1572-Q003", "text": "How firing load transmitted to bed plate", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Bedplate / A-Frame", "tid": "KOL-2021-01-1572", "tray": "new", "candidates": [ { "answer_id": "TR-TB-PA-001", "score": 0.591810405254364, "sibling_score": 0.591810405254364, "answer_score": 0.5346255868673324, "sibling_qid": "KOL-2024-04-3686-Q003", "sibling_text": "how firing forces transmitted tie rods arrangement how fitted how crankshaft rests on bedplate how bed plate girders fitted", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Function of tie rods and the firing-load path", "cross_family": false }, { "answer_id": "FWFB-P02-007", "score": 0.5298089385032654, "sibling_score": 0.5298089385032654, "answer_score": null, "sibling_qid": "MUM-2026-03-2952-Q007", "sibling_text": "what type of bedplate", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Transverse and longitudinal girders: arrangement and purpose", "cross_family": false }, { "answer_id": "CHK-RM-001", "score": 0.5141039490699768, "sibling_score": 0.5141039490699768, "answer_score": null, "sibling_qid": "KOL-2018-10-1428-Q003", "sibling_text": "how bedplate is connected to hull", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What are chocks? Function, types, where fitted and how placed — which have the biggest area, and how does the bedplate connect to the hull?", "cross_family": false } ] }, { "qid": "KOL-2021-01-1573-Q002", "text": "Improved high lift safety valve", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2021-01-1573", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.8362228870391846, "sibling_score": 0.8362228870391846, "answer_score": null, "sibling_qid": "MUM-2026-06-3405-Q017", "sibling_text": "improved high lift safety valve details", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACSS-002", "score": 0.4953367590904236, "sibling_score": null, "answer_score": 0.4953367590904236, "sibling_qid": "", "sibling_text": "relief safety valves settings testing lifting reasons bursting disc set just above stage working pressure the class standard accumulation limit is about 10 though the exact set point is a maker sms value non isolable from its stage test to the maker s method easing gear or test rig for lifting pressure log and reset", "sibling_family": "", "via": "answer_title", "answer_title": "Relief / safety valves: settings, testing, lifting reasons; bursting disc", "cross_family": false }, { "answer_id": "ACRV-004", "score": 0.4749831259250641, "sibling_score": null, "answer_score": 0.4749831259250641, "sibling_qid": "", "sibling_text": "final stage relief valve setting adjustment and safety cut out pressure always set by an authorised competent person to the maker s figure on a calibrated master gauge with the valve on a rig or the stage isolated and depressurised never adjust to mask a fault adjusting screw in raises the lift pressure more spring load out lowers it slacken the lock nut first relock and cap seal after", "sibling_family": "", "via": "answer_title", "answer_title": "Final-stage relief-valve setting/adjustment and safety cut-out pressure", "cross_family": false } ] }, { "qid": "KOL-2021-01-1573-Q004", "text": "Osmosis process", "family": "NDT & Material Testing", "subtopic": "Osmosis", "tid": "KOL-2021-01-1573", "tray": "new", "candidates": [ { "answer_id": "FWG-RO-006", "score": 0.37475699186325073, "sibling_score": 0.37475699186325073, "answer_score": 0.3249167397618294, "sibling_qid": "KOC-2026-08-2117-Q001", "sibling_text": "reverse osmosis", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Explain reverse osmosis — the principle and flow, pre- and post-treatment, and what chemical is dosed before the RO.", "cross_family": false }, { "answer_id": "HT-A-003", "score": 0.3592056930065155, "sibling_score": 0.3592056930065155, "answer_score": null, "sibling_qid": "KOL-2021-01-3371-Q003", "sibling_text": "normalising process effects", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Normalising: process, still-air cooling, and how it differs from annealing", "cross_family": false }, { "answer_id": "OMD-003", "score": 0.34065526723861694, "sibling_score": 0.34065526723861694, "answer_score": null, "sibling_qid": "MUM-2026-05-3308-Q007", "sibling_text": "working principle of omd", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Explain the OMD working principle, its types and their differences, the electrical side, and zero setting and calibration.", "cross_family": true } ] }, { "qid": "KOL-2021-01-1574-Q001", "text": ".What's type of engine u have done ?.", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOL-2021-01-1574", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.7345355153083801, "sibling_score": 0.7345355153083801, "answer_score": null, "sibling_qid": "KOL-2026-03-2048-Q001", "sibling_text": "type of engine done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "MCC-MEB-P01-001", "score": 0.6779218316078186, "sibling_score": 0.6779218316078186, "answer_score": null, "sibling_qid": "MUM-2026-09-3997-Q002", "sibling_text": "type of engine worked me mcc me b and rta", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "MC-C (\"Compact\") engine — design and the main constructional differences from MC", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.6701604723930359, "sibling_score": 0.6701604723930359, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false } ] }, { "qid": "KOL-2021-01-1575-Q005", "text": ") In a improvised high lift safety valve how lift is improved?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2021-01-1575", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.7401114106178284, "sibling_score": 0.7401114106178284, "answer_score": null, "sibling_qid": "MUM-2026-06-3405-Q017", "sibling_text": "improved high lift safety valve details", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACSS-002", "score": 0.4372489213943481, "sibling_score": null, "answer_score": 0.4372489213943481, "sibling_qid": "", "sibling_text": "relief safety valves settings testing lifting reasons bursting disc set just above stage working pressure the class standard accumulation limit is about 10 though the exact set point is a maker sms value non isolable from its stage test to the maker s method easing gear or test rig for lifting pressure log and reset", "sibling_family": "", "via": "answer_title", "answer_title": "Relief / safety valves: settings, testing, lifting reasons; bursting disc", "cross_family": false }, { "answer_id": "ACRV-004", "score": 0.4355121612548828, "sibling_score": null, "answer_score": 0.4355121612548828, "sibling_qid": "", "sibling_text": "final stage relief valve setting adjustment and safety cut out pressure always set by an authorised competent person to the maker s figure on a calibrated master gauge with the valve on a rig or the stage isolated and depressurised never adjust to mask a fault adjusting screw in raises the lift pressure more spring load out lowers it slacken the lock nut first relock and cap seal after", "sibling_family": "", "via": "answer_title", "answer_title": "Final-stage relief-valve setting/adjustment and safety cut-out pressure", "cross_family": false } ] }, { "qid": "KOL-2021-01-2413-Q006", "text": "zener barriers, value, how it used", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOL-2021-01-2413", "tray": "new", "candidates": [ { "answer_id": "EPC-P02-01", "score": 0.5716479420661926, "sibling_score": 0.5716479420661926, "answer_score": 0.43473305106163024, "sibling_qid": "MUM-2026-06-3633-Q006", "sibling_text": "how it works what is zener barrier applications of zener diode", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a zener diode? Draw its symbol, explain its working principle, and draw and explain its characteristic curve including the zener (breakdown) voltage.", "cross_family": false }, { "answer_id": "EPC-P02-03", "score": 0.5572981834411621, "sibling_score": 0.5572981834411621, "answer_score": 0.4419777423143387, "sibling_qid": "CHE-2026-02-0333-Q002", "sibling_text": "zener barrier", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Where is a zener diode used on board and why — voltage regulator, AVR, clipper — and explain one application in detail.", "cross_family": false }, { "answer_id": "FSF-BF073-004", "score": 0.5467327237129211, "sibling_score": 0.5467327237129211, "answer_score": null, "sibling_qid": "CHE-2026-03-0359-Q001", "sibling_text": "zener diode zener barrier working in intrinsically safe", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a magnetic fail safe?", "cross_family": false } ] }, { "qid": "KOL-2021-01-2414-Q003", "text": "What are the advantages, disadvantages of High Voltage distribution system on-board a ship? What are the safeties for High Voltage distribution system? What type of Circuit breaker used in HV system?", "family": "", "subtopic": "Circuit Breakers (ACB / VCB / SF6)", "tid": "KOL-2021-01-2414", "tray": "review", "candidates": [ { "answer_id": "CB-ACBVCBSF6-E-001", "score": 0.683677077293396, "sibling_score": 0.683677077293396, "answer_score": null, "sibling_qid": "KOL-2020-10-2399-Q002", "sibling_text": "type of circuit breakers in hv ships features of vacuum circuit breakers type of circuit breakers in general what is dielectric strength", "sibling_family": "", "via": "sibling", "answer_title": "What are the common types of circuit breakers used onboard and where are ACB, MCB, MCCB, VCB and SF6 breakers applied?", "cross_family": false }, { "answer_id": "HV-SYS-P02-001", "score": 0.6762266755104065, "sibling_score": 0.6762266755104065, "answer_score": null, "sibling_qid": "KOC-2025-03-1504-Q005", "sibling_text": "high voltage ship advantages", "sibling_family": "", "via": "sibling", "answer_title": "Why high voltage is used onboard ships", "cross_family": false }, { "answer_id": "CBKR-H-001", "score": 0.6706366539001465, "sibling_score": 0.6706366539001465, "answer_score": 0.6178436547517776, "sibling_qid": "KOL-2020-03-2377-Q001", "sibling_text": "breakers in hv system features advantages what is di electric strength", "sibling_family": "", "via": "sibling", "answer_title": "How do VCB and SF6 breakers work in a high-voltage system, and why are they used instead of an ACB?", "cross_family": false } ] }, { "qid": "KOL-2021-01-2415-Q003", "text": "Galley hot plate not working. How will you troubleshoot.", "family": "Fault Diagnosis & 2/E Actions", "subtopic": "Fault Diagnosis / 2E Action", "tid": "KOL-2021-01-2415", "tray": "new", "candidates": [ { "answer_id": "IRT-C-010", "score": 0.6227988600730896, "sibling_score": 0.6227988600730896, "answer_score": null, "sibling_qid": "KOC-2021-05-1132-Q003", "sibling_text": "procedure to check ir of galley heater megger uses is there any minimum ir value specified", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "IR of cables and heaters (non-motor)", "cross_family": true }, { "answer_id": "TEV-TXV-007", "score": 0.6227940917015076, "sibling_score": 0.6227940917015076, "answer_score": null, "sibling_qid": "KOL-2025-12-3893-Q002", "sibling_text": "meat room temp not coming je said to you tev not working how will you ensure only tev has problem before opening", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Faulty TEV in a meat/fish room with no spare — diagnosis and management", "cross_family": true }, { "answer_id": "ELEC-SAFE-007", "score": 0.6216574907302856, "sibling_score": 0.6216574907302856, "answer_score": null, "sibling_qid": "KOL-2017-06-2134-Q006", "sibling_text": "galley equipment safeties and asked to draw circuit diagram of hot plate started drawing he said no need", "sibling_family": "", "via": "sibling", "answer_title": "Portable equipment, sockets, light fittings and galley appliances", "cross_family": false } ] }, { "qid": "KOL-2021-01-2416-Q003", "text": "DIODE , How do u check, fwd bias reverse bias etc", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Zener / Diode / Rectifier", "tid": "KOL-2021-01-2416", "tray": "review", "candidates": [ { "answer_id": "EPC-P01-02", "score": 0.6768749356269836, "sibling_score": 0.6768749356269836, "answer_score": null, "sibling_qid": "KOC-2023-12-1314-Q014", "sibling_text": "types of diodes working how to test diode", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Types of diodes, and where diodes are used on board", "cross_family": false }, { "answer_id": "EPC-P01-01", "score": 0.659476637840271, "sibling_score": 0.659476637840271, "answer_score": 0.5156187534332275, "sibling_qid": "KOC-2024-05-1356-Q003", "sibling_text": "pn junction diode explain and asked to draw pn junction diode in circuit and drawing of pn junction in forward bias and reversed bias", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a diode? Symbol, forward and reverse bias, and the characteristic curve", "cross_family": false }, { "answer_id": "EPC-P02-01", "score": 0.6361330151557922, "sibling_score": 0.6361330151557922, "answer_score": null, "sibling_qid": "KOL-2022-10-2611-Q004", "sibling_text": "what is zenor diode what is it s characteristics how it is differ from normal diode what is forward bias and reverse biased", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a zener diode? Draw its symbol, explain its working principle, and draw and explain its characteristic curve including the zener (breakdown) voltage.", "cross_family": false } ] }, { "qid": "KOL-2021-01-2417-Q001", "text": "ICCP SYSTEM ?", "family": "Electrical - ICCP & Cathodic Protection", "subtopic": "ICCP", "tid": "KOL-2021-01-2417", "tray": "review", "candidates": [ { "answer_id": "ICCP-119-P01-001", "score": 0.7588892579078674, "sibling_score": 0.7588892579078674, "answer_score": 0.42696677446365355, "sibling_qid": "MUM-2026-06-3444-Q002", "sibling_text": "iccp system", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP — purpose, principle and basic working", "cross_family": false }, { "answer_id": "ICCP-119-P01-002", "score": 0.4357546389102936, "sibling_score": null, "answer_score": 0.4357546389102936, "sibling_qid": "", "sibling_text": "iccp circuit control arrangement construction and main components", "sibling_family": "", "via": "answer_title", "answer_title": "ICCP circuit / control arrangement, construction and main components", "cross_family": false }, { "answer_id": "AVICERT-005", "score": 0.3349829062819481, "sibling_score": null, "answer_score": 0.3349829062819481, "sibling_qid": "", "sibling_text": "which annex vi documents are generated and maintained on board rather than issued by the administration and who issues each certificate administration ro issues iapp ieec applicable eiapps the integrated dcs cii statement of compliance confirmation of compliance seemp ii iii company develops maintains the seemp", "sibling_family": "", "via": "answer_title", "answer_title": "Which Annex VI documents are generated and maintained on board rather than issued by the Administration, and who issues each certificate?", "cross_family": false } ] }, { "qid": "KOL-2021-01-2420-Q004", "text": "How many kinds of generating system are present on board and their minimum capacity according to the book........", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator / Generator", "tid": "KOL-2021-01-2420", "tray": "new", "candidates": [ { "answer_id": "ALT-GEN-P01-002", "score": 0.5703094601631165, "sibling_score": 0.5703094601631165, "answer_score": 0.46394264101982113, "sibling_qid": "KOL-2021-11-2512-Q001", "sibling_text": "type of generator onboard", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "2. Types of generator/alternator carried onboard", "cross_family": false }, { "answer_id": "LS-IMB-A-001", "score": 0.5542768836021423, "sibling_score": 0.5542768836021423, "answer_score": null, "sibling_qid": "KOL-2026-05-4097-Q003", "sibling_text": "one generator taking 380 kw another 320 kw in parallel reason", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Two paralleled generators sharing unequal load — cause and correction", "cross_family": false }, { "answer_id": "EDG-P01-001", "score": 0.5267994999885559, "sibling_score": 0.5267994999885559, "answer_score": null, "sibling_qid": "MUM-2025-11-1768-Q004", "sibling_text": "4 emergency generator regulation", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Emergency source of power — the SOLAS requirements", "cross_family": false } ] }, { "qid": "KOL-2021-01-3371-Q001", "text": "Asked no. Of attempts for mep and reason behind so many attempts.", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOL-2021-01-3371", "tray": "new", "candidates": [ { "answer_id": "ETP-344-P01-012", "score": 0.4322134256362915, "sibling_score": 0.4322134256362915, "answer_score": null, "sibling_qid": "CHE-2025-08-0513-Q005", "sibling_text": "mip mep draw card x questions", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "MIP, MEP and indicated power — and raising MEP", "cross_family": true }, { "answer_id": "IND-CARD-004", "score": 0.4231475591659546, "sibling_score": 0.4231475591659546, "answer_score": null, "sibling_qid": "MUM-2022-09-1022-Q005", "sibling_text": "what is mep significance", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "How are MEP, diagram area and engine power calculated from indicator-card data?", "cross_family": true }, { "answer_id": "MEPC-GHG-001", "score": 0.41063645482063293, "sibling_score": 0.41063645482063293, "answer_score": 0.24982329457998276, "sibling_qid": "MUM-2026-07-3747-Q007", "sibling_text": "when was last mepc meeting held and amendments", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "What was decided at the latest MEPC meeting? Explain the latest MEPC circular and outcomes.", "cross_family": true } ] }, { "qid": "KOL-2021-01-3986-Q005", "text": "If one generator is running on less rpm but not shedding load and continuously running in parallel, what will be effects.", "family": "Electrical - Generator & Alternator", "subtopic": "Load Sharing Imbalance", "tid": "KOL-2021-01-3986", "tray": "review", "candidates": [ { "answer_id": "LS-IMB-A-002", "score": 0.8180344700813293, "sibling_score": 0.8180344700813293, "answer_score": 0.48433761596679686, "sibling_qid": "KOL-2022-07-2574-Q004", "sibling_text": "two generators running parallel one generator rpm little less why", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "2. Governor speed droop, isochronous control and the load-control switch", "cross_family": false }, { "answer_id": "LS-IMB-A-001", "score": 0.7235653400421143, "sibling_score": 0.7235653400421143, "answer_score": 0.4908272624015808, "sibling_qid": "KOL-2026-04-2985-Q001", "sibling_text": "two generators running in parallel load not sharing reasons", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Two paralleled generators sharing unequal load — cause and correction", "cross_family": false }, { "answer_id": "GEN-LSI-B-001", "score": 0.7157366871833801, "sibling_score": 0.7157366871833801, "answer_score": 0.4870119124650955, "sibling_qid": "KOL-2023-04-2650-Q002", "sibling_text": "2 generators running in parallel but not sharing equal kw load reason", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01. Two alternators in parallel — same kW but different current and power factor: cause and correction", "cross_family": false } ] }, { "qid": "KOL-2021-01-3986-Q006", "text": "How many wires goes from alternator to msbd and arrangements.", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Faraday Law", "tid": "KOL-2021-01-3986", "tray": "review", "candidates": [ { "answer_id": "CABLE-INS-E-003", "score": 0.6575673818588257, "sibling_score": 0.6575673818588257, "answer_score": 0.5041293859481811, "sibling_qid": "MUM-2026-06-3544-Q004", "sibling_text": "material of wires from alternator to msb", "sibling_family": "Electrical - Cables & Insulation", "via": "sibling", "answer_title": "Cable / conductor arrangement: alternator to MSB", "cross_family": true }, { "answer_id": "ALT-MTN-B-001", "score": 0.5841713547706604, "sibling_score": 0.5841713547706604, "answer_score": null, "sibling_qid": "KOL-2019-11-2349-Q002", "sibling_text": "connection on alternator other than main supplly lines", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Routine onboard alternator maintenance checks", "cross_family": true }, { "answer_id": "DIODESO-001", "score": 0.4343205451965332, "sibling_score": null, "answer_score": 0.4343205451965332, "sibling_qid": "", "sibling_text": "two alternators in parallel one rotating rectifier diode goes short circuit what happens what if it goes open instead and how do you know which it is brushless set the main field on the rotor is fed by a rotating rectifier commonly six diodes in a three phase bridge off the ac exciter armature the avr controls the stationary exciter field no brushes or slip rings diode count is maker specific shor", "sibling_family": "", "via": "answer_title", "answer_title": "Two alternators in parallel — one rotating rectifier diode goes short circuit. What happens, what if it goes open instead, and how do you know which it is?", "cross_family": false } ] }, { "qid": "KOL-2021-02-0466-Q004", "text": "Classification society, role, certificate given by them.", "family": "Surveys - Statutory", "subtopic": "PSC / Flag / RO / CIC / MoU", "tid": "KOL-2021-02-0466", "tray": "review", "candidates": [ { "answer_id": "CERT-LIST-P01-001", "score": 0.7616121172904968, "sibling_score": 0.7616121172904968, "answer_score": null, "sibling_qid": "KOL-2023-05-2653-Q004", "sibling_text": "classsifiation sociaty certificate", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "List the statutory certificates carried onboard a ship.", "cross_family": false }, { "answer_id": "IACS-324-005", "score": 0.7214849591255188, "sibling_score": 0.7214849591255188, "answer_score": 0.506288480758667, "sibling_qid": "KOL-2021-12-0583-Q006", "sibling_text": "statutory certificate definition ro classification society difference", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "5. What is the difference between a classification society, a Recognized Organization, and statutory certification?", "cross_family": false }, { "answer_id": "CERT-LIST-P02-005", "score": 0.6381815075874329, "sibling_score": 0.6381815075874329, "answer_score": 0.500073128938675, "sibling_qid": "KOL-2021-07-0531-Q007", "sibling_text": "class certificates", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Class certificate / classification certificate", "cross_family": false } ] }, { "qid": "KOL-2021-02-0467-Q005", "text": "Onload & offload mechanism of oil tanker Rao Slop tank purpose VDR List of greenhouse gases in oil tanker", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Davit / Release Gear", "tid": "KOL-2021-02-0467", "tray": "new", "candidates": [ { "answer_id": "ODC-008", "score": 0.6216520667076111, "sibling_score": 0.6216520667076111, "answer_score": null, "sibling_qid": "KOC-2026-05-0030-Q003", "sibling_text": "ows discharge criteria gas tanker", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Cargo-area discharge criteria for an oil tanker — outside a special area", "cross_family": true }, { "answer_id": "ODC-012", "score": 0.6187944412231445, "sibling_score": 0.6187944412231445, "answer_score": 0.4959042966365814, "sibling_qid": "KOL-2022-02-0602-Q003", "sibling_text": "slop tank discharge marpol reqt", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Slop tank — arrangement, purpose and how a discharge is actually made", "cross_family": true }, { "answer_id": "VOC-MGT-002", "score": 0.6123218536376953, "sibling_score": 0.6123218536376953, "answer_score": null, "sibling_qid": "MUM-2026-02-2918-Q015", "sibling_text": "voc regulation as you sailed on crude oil tanker", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "VOC regulation, Annex VI basis and entry into force", "cross_family": true } ] }, { "qid": "KOL-2021-02-0472-Q003", "text": "Semi balanced rudder", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2021-02-0472", "tray": "new", "candidates": [ { "answer_id": "SPR-STERN-004", "score": 0.627210259437561, "sibling_score": 0.627210259437561, "answer_score": null, "sibling_qid": "MUM-2026-04-0894-Q003", "sibling_text": "what type of rudder i said semi balanced double plated rudder angle of attack stall angle", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Propeller rake & skew", "cross_family": true }, { "answer_id": "TRS-001", "score": 0.5976938605308533, "sibling_score": 0.5976938605308533, "answer_score": null, "sibling_qid": "KOL-2019-05-3236-Q005", "sibling_text": "rudder stock twisted how will you balance it how to find changed mishsip position", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "The rudder stock is twisted — how do you proceed, recover the true midship datum, and what regulations let you proceed to the next port?", "cross_family": false }, { "answer_id": "STEER-055-A-004", "score": 0.5968547463417053, "sibling_score": 0.5968547463417053, "answer_score": null, "sibling_qid": "KOL-2019-02-3212-Q005", "sibling_text": "rudder is taking more to come from one side to the other reasons and maintenance", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Hydraulic faults — air, sluggish response, locking, leakage", "cross_family": false } ] }, { "qid": "KOL-2021-02-0476-Q001", "text": "1 .solid ballasting", "family": "", "subtopic": "GM / KM / KB / Metacentric", "tid": "KOL-2021-02-0476", "tray": "new", "candidates": [ { "answer_id": "BWMS-C-009", "score": 0.5813243985176086, "sibling_score": 0.5813243985176086, "answer_score": null, "sibling_qid": "KOC-2025-11-0715-Q009", "sibling_text": "g8 of ballast", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "G8 is now the BWMS Code — type approval of treatment systems", "cross_family": false }, { "answer_id": "COT-13", "score": 0.536621630191803, "sibling_score": 0.536621630191803, "answer_score": null, "sibling_qid": "KOL-2023-09-0766-Q002", "sibling_text": "open ballast", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Segregated, clean, dedicated and open ballast", "cross_family": false }, { "answer_id": "COT-14", "score": 0.5325683355331421, "sibling_score": 0.5325683355331421, "answer_score": null, "sibling_qid": "KOL-2026-07-4253-Q003", "sibling_text": "segregated ballast and and capacity", "sibling_family": "Ship Construction", "via": "sibling", "answer_title": "SBT applicability, capacity and draught criteria", "cross_family": false } ] }, { "qid": "KOL-2021-02-1578-Q009", "text": "U r the 2nd eng. U made requisition of bilge p/p pr. gauge. What's specifications of gauge u give?", "family": "Gauges & Tools", "subtopic": "Pressure Gauge Calibration", "tid": "KOL-2021-02-1578", "tray": "review", "candidates": [ { "answer_id": "DUS-P1-02", "score": 0.6509342193603516, "sibling_score": 0.6509342193603516, "answer_score": null, "sibling_qid": "KOC-2026-09-2165-Q008", "sibling_text": "stern tube with poker gauge diagram", "sibling_family": "Gauges & Tools", "via": "sibling", "answer_title": "Plans, drawings and special tools kept ready for drydock — engine-department view", "cross_family": false }, { "answer_id": "PCD-P04-01", "score": 0.5975221395492554, "sibling_score": 0.5975221395492554, "answer_score": null, "sibling_qid": "CHE-2025-08-0022-Q005", "sibling_text": "er bilge pump requirement", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "01. Bilge pump — type, why not centrifugal, and the suction valve chest", "cross_family": true }, { "answer_id": "PROP-PN-C-002", "score": 0.5940436720848083, "sibling_score": 0.5940436720848083, "answer_score": null, "sibling_qid": "KOC-2026-05-2124-Q005", "sibling_text": "what are you measuring with poker gauge", "sibling_family": "Gauges & Tools", "via": "sibling", "answer_title": "Propeller drop — measurement and consequences", "cross_family": false } ] }, { "qid": "KOL-2021-02-1891-Q008", "text": "Piston stucked in liner, How to remove without damaging both parts? (A/E only).", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE Conrod / Piston", "tid": "KOL-2021-02-1891", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-002", "score": 0.773052990436554, "sibling_score": 0.773052990436554, "answer_score": 0.5796044826507568, "sibling_qid": "KOL-2019-03-3226-Q003", "sibling_text": "removal of seized piston from liner", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Seized piston in an AE liner — actions and safe removal", "cross_family": false }, { "answer_id": "AE-CRP-001", "score": 0.7079526782035828, "sibling_score": 0.7079526782035828, "answer_score": 0.5144300758838654, "sibling_qid": "MUM-2026-03-2951-Q006", "sibling_text": "how will you individually take out the piston only with motorman of ae", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE piston overhaul — removal, ring handling and refit", "cross_family": false }, { "answer_id": "PST-CSI-BF-014", "score": 0.6996519565582275, "sibling_score": 0.6996519565582275, "answer_score": null, "sibling_qid": "MUM-2021-09-1010-Q014", "sibling_text": "piston removal complete what if u dnt put liner locking tool", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Preparation and procedure for removing and overhauling a piston, and how long it takes", "cross_family": true } ] }, { "qid": "KOL-2021-02-1892-Q001", "text": "What type of engine?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOL-2021-02-1892", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.7489070296287537, "sibling_score": 0.7489070296287537, "answer_score": null, "sibling_qid": "KOL-2026-03-2048-Q001", "sibling_text": "type of engine done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.7450712323188782, "sibling_score": 0.7450712323188782, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-001", "score": 0.43641691803932187, "sibling_score": null, "answer_score": 0.43641691803932187, "sibling_qid": "", "sibling_text": "1 turbocharger type main engine vs generator engine compressor is centrifugal in both cases only the turbine type differs large slow speed main engine axial flow turbine single stage constant pressure system", "sibling_family": "", "via": "answer_title", "answer_title": "1. Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "KOL-2021-02-1893-Q002", "text": "Full details of improved high lift safety valve.How high lift is carried out in full details.", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2021-02-1893", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.7579725384712219, "sibling_score": 0.7579725384712219, "answer_score": null, "sibling_qid": "MUM-2026-06-3405-Q017", "sibling_text": "improved high lift safety valve details", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACSS-002", "score": 0.4765838027000427, "sibling_score": null, "answer_score": 0.4765838027000427, "sibling_qid": "", "sibling_text": "relief safety valves settings testing lifting reasons bursting disc set just above stage working pressure the class standard accumulation limit is about 10 though the exact set point is a maker sms value non isolable from its stage test to the maker s method easing gear or test rig for lifting pressure log and reset", "sibling_family": "", "via": "answer_title", "answer_title": "Relief / safety valves: settings, testing, lifting reasons; bursting disc", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-003", "score": 0.46047682166099546, "sibling_score": null, "answer_score": 0.46047682166099546, "sibling_qid": "", "sibling_text": "the accumulation test and the safety valve required lift how lift and capacity are verified and why accumulation must stay inside the limit popping test proves setting accumulation test proves installed relieving capacity not two versions of one test sizing the class discharge formula sizes the aggregate valve area from the maker s specified peak evaporation using a constant for the valve type", "sibling_family": "", "via": "answer_title", "answer_title": "The accumulation test and the safety valve — required lift, how lift and capacity are verified, and why accumulation must stay inside the limit", "cross_family": false } ] }, { "qid": "KOL-2021-02-2424-Q004", "text": "Hazardous zone on tanker ?", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOL-2021-02-2424", "tray": "review", "candidates": [ { "answer_id": "TCM-374-005", "score": 0.7462494373321533, "sibling_score": 0.7462494373321533, "answer_score": null, "sibling_qid": "KOC-2026-02-0826-Q020", "sibling_text": "hazard zone in chemical tanker", "sibling_family": "Chemical Tankers", "via": "sibling", "answer_title": "Gas-freeing a tanker after discharge or before dry dock (why through the IG system)", "cross_family": false }, { "answer_id": "TNK-SAFE-BF26-003", "score": 0.691561758518219, "sibling_score": 0.691561758518219, "answer_score": 0.5678011000156402, "sibling_qid": "KOL-2026-01-1153-Q006", "sibling_text": "different type of zones in oil tanker in hazardous area example of equipments fitted in different zones", "sibling_family": "", "via": "sibling", "answer_title": "What safeties, including electrical safeties and Ex ratings, are provided on the deck of a tanker?", "cross_family": false }, { "answer_id": "IGC-GAS-008", "score": 0.6243801712989807, "sibling_score": 0.6243801712989807, "answer_score": null, "sibling_qid": "MUM-2022-07-0030-Q006", "sibling_text": "hazards onboard gas carrier", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Cargo hazards and properties of liquefied gases", "cross_family": false } ] }, { "qid": "KOL-2021-02-2425-Q001", "text": "What is ex p, where is it used. Wanted to know exactly where it's used. Constructional requirements.", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOL-2021-02-2425", "tray": "new", "candidates": [ { "answer_id": "EXD-EXI-A-002", "score": 0.5217427015304565, "sibling_score": 0.5217427015304565, "answer_score": 0.33730083256959914, "sibling_qid": "KOC-2024-05-1353-Q008", "sibling_text": "exd constructional requirements maintenance where used onboard", "sibling_family": "", "via": "sibling", "answer_title": "Ex d (flameproof / explosion-proof) — construction, shipboard applications and maintenance", "cross_family": false }, { "answer_id": "EXD-EXI-A-001", "score": 0.48353278636932373, "sibling_score": 0.48353278636932373, "answer_score": null, "sibling_qid": "KOC-2023-03-1241-Q002", "sibling_text": "exd and exi explain application of both", "sibling_family": "", "via": "sibling", "answer_title": "Ex i (intrinsically safe) vs Ex d (flameproof / explosion-proof) — the difference", "cross_family": false }, { "answer_id": "EECS-011", "score": 0.30362194776535034, "sibling_score": null, "answer_score": 0.30362194776535034, "sibling_qid": "", "sibling_text": "11 explain eexi and eeoi eexi mandatory design existing ships one time eeoi voluntary operational cargo based", "sibling_family": "", "via": "answer_title", "answer_title": "11. Explain EEXI and EEOI", "cross_family": false } ] }, { "qid": "KOL-2021-02-2425-Q002", "text": "Motor protections ?", "family": "Electrical - Protection & Relays", "subtopic": "Protection / Relays", "tid": "KOL-2021-02-2425", "tray": "review", "candidates": [ { "answer_id": "IMSP-007", "score": 0.761884868144989, "sibling_score": 0.761884868144989, "answer_score": 0.5582167983055114, "sibling_qid": "MUM-2025-04-1490-Q006", "sibling_text": "protection of motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What safeties and protections are provided in an induction motor and its starter — overload, short-circuit, thermal? What about a motor on deck, and large three-phase motors?", "cross_family": true }, { "answer_id": "OCR-185-006", "score": 0.7506036162376404, "sibling_score": 0.7506036162376404, "answer_score": null, "sibling_qid": "KOC-2026-02-2090-Q008", "sibling_text": "short ckt protection in motor", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "If short-circuit protection fails to operate; how it is checked", "cross_family": false }, { "answer_id": "IP-RATING-001", "score": 0.7137463092803955, "sibling_score": 0.7137463092803955, "answer_score": null, "sibling_qid": "MUM-2026-06-3400-Q010", "sibling_text": "motor ingress protection", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "IP (ingress protection) rating — the two digits, why it is needed, and how it is kept intact on ship equipment", "cross_family": true } ] }, { "qid": "KOL-2021-02-2425-Q003", "text": "ICCP components?. Amplifiers etc. Why dc used and not ac ?", "family": "Electrical - ICCP & Cathodic Protection", "subtopic": "ICCP", "tid": "KOL-2021-02-2425", "tray": "new", "candidates": [ { "answer_id": "AVR-EXC-A-001", "score": 0.5763417482376099, "sibling_score": 0.5763417482376099, "answer_score": null, "sibling_qid": "CHE-2025-08-0289-Q003", "sibling_text": "avr why dc is used", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "What is the purpose and function of the AVR?", "cross_family": true }, { "answer_id": "BDC-P02-04", "score": 0.5484951138496399, "sibling_score": 0.5484951138496399, "answer_score": 0.3940658852458, "sibling_qid": "CHE-2026-05-0565-Q015", "sibling_text": "why dc for control voltage", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "The ship's 24 V DC system — how it is produced, why DC, and what it supplies", "cross_family": true }, { "answer_id": "ICCP-P02-001", "score": 0.5219080448150635, "sibling_score": 0.5219080448150635, "answer_score": null, "sibling_qid": "KOC-2025-05-1536-Q001", "sibling_text": "15 05 11 46 saheem khan function 5 internal satish kamath external aniruba k something visual check of room by internal ac characteristics star connection voltage relation ac circuit components iccp reference electrode material and function of reference electrode shared screen with mac circuit diagram and asks component and function", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP reference cell / reference electrode — purpose, material, location, selection", "cross_family": false } ] }, { "qid": "KOL-2021-02-2425-Q005", "text": "Special requirements for electrical equipments on LNG tankers ?", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOL-2021-02-2425", "tray": "review", "candidates": [ { "answer_id": "ELEC-SURV-005", "score": 0.729340672492981, "sibling_score": 0.729340672492981, "answer_score": 0.5263555079698562, "sibling_qid": "KOL-2018-09-2223-Q004", "sibling_text": "class requirements for all electrical equipments on board a tanker all details", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Regulatory basis & equipment standards", "cross_family": false }, { "answer_id": "IGC-GAS-009", "score": 0.6752293705940247, "sibling_score": 0.6752293705940247, "answer_score": null, "sibling_qid": "CHE-2026-03-0353-Q002", "sibling_text": "electrical safety during lng bunkering", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Static electricity and electrical safety / bonding", "cross_family": false }, { "answer_id": "TNK-SAFE-BF26-003", "score": 0.6740862131118774, "sibling_score": 0.6740862131118774, "answer_score": null, "sibling_qid": "MUM-2026-01-1911-Q002", "sibling_text": "electrical safeties on deck of tanker", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What safeties, including electrical safeties and Ex ratings, are provided on the deck of a tanker?", "cross_family": false } ] }, { "qid": "KOL-2021-02-3376-Q005", "text": "Auxiliary engine rpm fluctuation- mechanical and electrical reasons", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE Governor", "tid": "KOL-2021-02-3376", "tray": "review", "candidates": [ { "answer_id": "GOV-P03-003", "score": 0.6984703540802002, "sibling_score": 0.6984703540802002, "answer_score": 0.5285520941019058, "sibling_qid": "KOL-2017-12-3105-Q003", "sibling_text": "generator rpm fluctuating reason", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Hunting, RPM fluctuation and troubleshooting", "cross_family": true }, { "answer_id": "AEOVT-559-003", "score": 0.65953129529953, "sibling_score": 0.65953129529953, "answer_score": null, "sibling_qid": "MUM-2026-01-1905-Q001S3", "sibling_text": "over speed of auxiliary engine", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Overspeed of a diesel generator / auxiliary engine — what it is and why it matters", "cross_family": false }, { "answer_id": "AEOVT-559-002", "score": 0.6374195218086243, "sibling_score": 0.6374195218086243, "answer_score": null, "sibling_qid": "MUM-2025-11-1773-Q001", "sibling_text": "generator started and trip immediately reasons did not accept governor fault no pickup sensor etc triping just immediately after reaching rated rpm", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Generator trips immediately on reaching rated rpm — reasons (governor fault and dead pickup excluded)", "cross_family": false } ] }, { "qid": "KOL-2021-02-3378-Q004", "text": "crank web and why?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Crosshead Bearing", "tid": "KOL-2021-02-3378", "tray": "new", "candidates": [ { "answer_id": "MAIN-BRG-A-001", "score": 0.44976991415023804, "sibling_score": 0.44976991415023804, "answer_score": null, "sibling_qid": "KOL-2021-12-3495-Q002", "sibling_text": "main brg survey crank web position how much jacking what", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How is a main bearing surveyed, inspected or condition-monitored?", "cross_family": false }, { "answer_id": "CRK-DEFL-001", "score": 0.44661033153533936, "sibling_score": 0.44661033153533936, "answer_score": 0.28377117961645126, "sibling_qid": "MUM-2023-07-2738-Q003", "sibling_text": "reason for taking crank web deflection", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Purpose, timing and scope of crankshaft deflection", "cross_family": true }, { "answer_id": "SHELL-PLT-A-001", "score": 0.40487778186798096, "sibling_score": 0.40487778186798096, "answer_score": null, "sibling_qid": "KOC-2025-03-0583-Q007", "sibling_text": "shell expansion plan what is web frame", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "The shell expansion plan, and how you identify a plate", "cross_family": true } ] }, { "qid": "KOL-2021-03-0477-Q005", "text": "who are the 2nd stake holders in ISM?", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOL-2021-03-0477", "tray": "new", "candidates": [ { "answer_id": "ISM-DPA-002", "score": 0.45162156224250793, "sibling_score": 0.45162156224250793, "answer_score": null, "sibling_qid": "KOC-2023-03-0172-Q004", "sibling_text": "ism who is responsible for ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "DPA basis : which convention, which code, and who is responsible for ISM", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.435378760099411, "sibling_score": 0.435378760099411, "answer_score": null, "sibling_qid": "MUM-2025-09-0457-Q008", "sibling_text": "objectives of ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "ISM-AUDIT-P01-001", "score": 0.4254206418991089, "sibling_score": 0.4254206418991089, "answer_score": null, "sibling_qid": "KOL-2026-05-4088-Q004", "sibling_text": "2nd engineer role in ism survey", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Preparing engine room, records and documents for ISM/SMS audit (2/E)", "cross_family": false } ] }, { "qid": "KOL-2021-03-0477-Q007", "text": "what is clear ground?", "family": "Surveys - Statutory", "subtopic": "Detention / Clear Ground", "tid": "KOL-2021-03-0477", "tray": "review", "candidates": [ { "answer_id": "DCG-001", "score": 0.7021033763885498, "sibling_score": 0.7021033763885498, "answer_score": 0.28191834837198254, "sibling_qid": "KOL-2026-05-4095-Q005", "sibling_text": "what is clear ground", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is meant by \"clear grounds\", under PSC and under SOLAS? Give examples and state the conditions.", "cross_family": false }, { "answer_id": "DCG-003", "score": 0.6570493578910828, "sibling_score": 0.6570493578910828, "answer_score": null, "sibling_qid": "KOL-2023-09-0767-Q005", "sibling_text": "clear ground give any example of clear ground code", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the PSC deficiency code, which code leads to a detainable deficiency, and can you give an example of a \"clear-ground code\"?", "cross_family": false }, { "answer_id": "CXH-BRG-FINAL-1-006", "score": 0.2559238165616989, "sibling_score": null, "answer_score": 0.2559238165616989, "sibling_qid": "", "sibling_text": "crosshead guide shoe clearances how where how much piston position why clearances crosshead bearing clearance plus guide shoe clearance both sides running and thrust bearing clearance position is maker specified the aim is to put the running gear in the condition that opens the clearance at the measuring point for that design", "sibling_family": "", "via": "answer_title", "answer_title": "Crosshead & guide-shoe clearances: how, where, how much, piston position & why", "cross_family": false } ] }, { "qid": "KOL-2021-03-0477-Q009", "text": "Type of ship,teu capacity,length.\tdifference between free fall", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2021-03-0477", "tray": "new", "candidates": [ { "answer_id": "TONN-008", "score": 0.6231048703193665, "sibling_score": 0.6231048703193665, "answer_score": null, "sibling_qid": "KOC-2026-03-0880-Q015", "sibling_text": "difference between vlcc ulcc aframax suezmax interms of dwt", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Ship / Tanker Size Classes by Deadweight", "cross_family": false }, { "answer_id": "LLST-AB-003", "score": 0.6209002137184143, "sibling_score": 0.6209002137184143, "answer_score": 0.4778744667768478, "sibling_qid": "MUM-2026-03-0861-Q002", "sibling_text": "which ship has more freeboard bulk carrier or oil tanker many cross metacentri height etc", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Why tankers carry less freeboard than bulk carriers and other dry-cargo ships", "cross_family": false }, { "answer_id": "LL-CONV-P06-001", "score": 0.6066849827766418, "sibling_score": 0.6066849827766418, "answer_score": 0.5056870490312576, "sibling_qid": "MUM-2026-05-3084-Q004", "sibling_text": "difference in passenger ship and cargo ship load line", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "LLC-P06-01 - Ship categories and freeboard differences: Type A, Type B and practical ship cases", "cross_family": false } ] }, { "qid": "KOL-2021-03-0477-Q010", "text": "lifeboat and davit launched lifeboat,mechanism, location of both types and which ship generally?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Davit / Release Gear", "tid": "KOL-2021-03-0477", "tray": "review", "candidates": [ { "answer_id": "DRG-583-A-007", "score": 0.7016076445579529, "sibling_score": 0.7016076445579529, "answer_score": 0.5089718461036682, "sibling_qid": "KOL-2023-07-0757-Q003", "sibling_text": "life boat davit arrangement", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Davit types and arrangement: gravity and luffing", "cross_family": false }, { "answer_id": "DRG-B-007", "score": 0.683302640914917, "sibling_score": 0.683302640914917, "answer_score": null, "sibling_qid": "KOC-2023-01-0136-Q004", "sibling_text": "lifeboat lowering procedure gravity davit type", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lowering the boat — gravity davit procedure", "cross_family": false }, { "answer_id": "LB-DAVIT-HRU-008", "score": 0.6824707388877869, "sibling_score": 0.6824707388877869, "answer_score": null, "sibling_qid": "KOC-2026-09-2189-Q006", "sibling_text": "davit launch life boat safeties", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat davit safety devices", "cross_family": false } ] }, { "qid": "KOL-2021-03-0477-Q011", "text": "what is funnel flap,where located,what is the purpose,how does it operate?why funnel flap is kept open all the time?", "family": "Auxiliary Equipment", "subtopic": "Quick Closing Valve", "tid": "KOL-2021-03-0477", "tray": "new", "candidates": [ { "answer_id": "QCV-003", "score": 0.5417326092720032, "sibling_score": 0.5417326092720032, "answer_score": null, "sibling_qid": "KOL-2017-08-0105-Q005", "sibling_text": "maintenance done on funnel flaps and vents during saturday routines when to test quickclosing valves regulation", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Quick closing valve — overhaul, maintenance and testing", "cross_family": false }, { "answer_id": "AUC-P03-03", "score": 0.4847101867198944, "sibling_score": 0.4847101867198944, "answer_score": 0.4049634218215942, "sibling_qid": "KOC-2025-03-0570-Q005", "sibling_text": "nozzle flapper arrangement pressure of air to nozzle", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Pneumatic nozzle-flapper system and control-air line maintenance", "cross_family": true }, { "answer_id": "CTRL-TL-010", "score": 0.47943753004074097, "sibling_score": 0.47943753004074097, "answer_score": 0.3595934510231018, "sibling_qid": "KOL-2018-11-2241-Q005", "sibling_text": "nozzle flapper arrangement where used it s function how and where the pneumatic pressure increases", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Pneumatic control: nozzle-flapper, DP, actuators and fail-safe", "cross_family": true } ] }, { "qid": "KOL-2021-03-0477-Q012", "text": "How dangerous cargo is stored in container ship,which certificate does it carry and location of procedure and arrangement manual and why does it kept there.IMDG code full form and short explanation.", "family": "Other Conventions", "subtopic": "IMDG Code", "tid": "KOL-2021-03-0477", "tray": "review", "candidates": [ { "answer_id": "IMDG-007", "score": 0.6870325207710266, "sibling_score": 0.6870325207710266, "answer_score": 0.5816991329193115, "sibling_qid": "KOC-2024-10-0439-Q017", "sibling_text": "dangerous cargo how stowed conditions to be satisfied for stowing it near accomodation", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "How is dangerous cargo stowed on a container ship? Location, where stated, near accommodation, and can every container carry it?", "cross_family": false }, { "answer_id": "IMDG-011", "score": 0.6785240769386292, "sibling_score": 0.6785240769386292, "answer_score": null, "sibling_qid": "MUM-2025-11-0556-Q017", "sibling_text": "what symbols markings used for imdg cargoes on deck", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What symbols and markings are used for IMDG cargoes on deck?", "cross_family": false }, { "answer_id": "IMDG-004", "score": 0.6687037348747253, "sibling_score": 0.6687037348747253, "answer_score": 0.5725630044937133, "sibling_qid": "KOC-2026-08-2112-Q011", "sibling_text": "imdg cargo regulation internal ques", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "How do you identify IMDG cargo on board — how you know it is coming, and how you identify it with no documents", "cross_family": false } ] }, { "qid": "KOL-2021-03-0477-Q013", "text": "safety and environmental protection policy.\twhere have u seen", "family": "ISM Code", "subtopic": "SMS / Functional Requirements", "tid": "KOL-2021-03-0477", "tray": "new", "candidates": [ { "answer_id": "ISM-AUD-P03-006", "score": 0.6457450985908508, "sibling_score": 0.6457450985908508, "answer_score": 0.39234632551670073, "sibling_qid": "MUM-2026-03-0811-Q006", "sibling_text": "what do you understand by safety environment protection policy", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Company safety and environmental-protection objectives", "cross_family": false }, { "answer_id": "SMSFR-002", "score": 0.6106939911842346, "sibling_score": 0.6106939911842346, "answer_score": null, "sibling_qid": "KOL-2025-11-1118-Q004", "sibling_text": "environmental protection policy of sms", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the Safety Management System — the SMS manual, its contents, objectives, why it is needed onboard, and the company SMS policy?", "cross_family": false }, { "answer_id": "BUNK-PLAN-002", "score": 0.564908504486084, "sibling_score": 0.564908504486084, "answer_score": 0.40810630917549134, "sibling_qid": "KOL-2024-11-3725-Q004", "sibling_text": "bunker safety precautions taken according to environment protection", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Safety, environmental, electrical and deck-round precautions during bunkering", "cross_family": true } ] }, { "qid": "KOL-2021-03-0480-Q001", "text": "Type of Ship? Gas Carrier ..explain membrane tanks and some cross questioning", "family": "Cargo Ops - Gas Carriers", "subtopic": "Cargo Tank Construction", "tid": "KOL-2021-03-0480", "tray": "review", "candidates": [ { "answer_id": "BLEVE-BOG-004", "score": 0.6858918070793152, "sibling_score": 0.6858918070793152, "answer_score": null, "sibling_qid": "CHE-2026-02-0115-Q003", "sibling_text": "how to you maintain gas vapour from tank i explained about the lng carriers in my vessel but he was expecting a re liquefaction plant from lpg", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "How are LNG boil-off, tank pressure and cargo temperature controlled?", "cross_family": false }, { "answer_id": "GC-TANK-001", "score": 0.6792963147163391, "sibling_score": 0.6792963147163391, "answer_score": 0.554411631822586, "sibling_qid": "CHE-2026-02-0115-Q003S3", "sibling_text": "what tank used in the lng carrier in your vessel and explain", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Main cargo containment and independent tank types on LPG and LNG carriers", "cross_family": false }, { "answer_id": "LPG-LNG-009", "score": 0.6632476449012756, "sibling_score": 0.6632476449012756, "answer_score": 0.5351966202259063, "sibling_qid": "CHE-2025-11-0309-Q007", "sibling_text": "cross in gas carrier ship why", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Gas-carrier fundamentals and ship-specific traps", "cross_family": false } ] }, { "qid": "KOL-2021-03-0484-Q001", "text": "Heaving", "family": "SOLAS", "subtopic": "Ship Motions / Six Degrees of Freedom", "tid": "KOL-2021-03-0484", "tray": "new", "candidates": [ { "answer_id": "WIND-WNCH-011", "score": 0.5172065496444702, "sibling_score": 0.5172065496444702, "answer_score": 0.4262327045202255, "sibling_qid": "KOL-2026-02-1176-Q010", "sibling_text": "windlass heaving speed", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Heaving / hoisting speed and how it is checked", "cross_family": true }, { "answer_id": "WIND-WNCH-002", "score": 0.5087099075317383, "sibling_score": 0.5087099075317383, "answer_score": null, "sibling_qid": "KOC-2025-03-1031-Q021", "sibling_text": "how weight handled by windlass wait outside int", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Working: how the chain is lifted and the load handled", "cross_family": true }, { "answer_id": "DRG-583-A-011", "score": 0.485595166683197, "sibling_score": 0.485595166683197, "answer_score": null, "sibling_qid": "KOC-2026-02-0812-Q005", "sibling_text": "lifeboat hoisting procedure after trying out", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Securing the boat for sea, hoisting and recovery, and fall preventer devices", "cross_family": true } ] }, { "qid": "KOL-2021-03-0485-Q001", "text": "Major non conformity", "family": "ISM Code", "subtopic": "Major / Minor NC", "tid": "KOL-2021-03-0485", "tray": "review", "candidates": [ { "answer_id": "ISMNC-002", "score": 0.7926920056343079, "sibling_score": 0.7926920056343079, "answer_score": 0.43880937099456785, "sibling_qid": "MUM-2026-08-3832-Q001", "sibling_text": "major non conformity", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a major non-conformity under the ISM Code? Give the definition and name some.", "cross_family": false }, { "answer_id": "ISMNC-003", "score": 0.7417422533035278, "sibling_score": 0.7417422533035278, "answer_score": 0.46289242804050446, "sibling_qid": "MUM-2025-01-0238-Q006", "sibling_text": "major non conformity and non conformity", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Differentiate between a major non-conformity and a non-conformity under the ISM Code.", "cross_family": false }, { "answer_id": "ISMNC-005", "score": 0.6836371421813965, "sibling_score": 0.6836371421813965, "answer_score": 0.49618294835090637, "sibling_qid": "KOL-2025-04-0931-Q012", "sibling_text": "example for major non confirmity", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Give examples of a non-conformity and of a major non-conformity.", "cross_family": false } ] }, { "qid": "KOL-2021-03-0486-Q004", "text": "What is continental shelf?", "family": "Other Conventions", "subtopic": "UNCLOS", "tid": "KOL-2021-03-0486", "tray": "review", "candidates": [ { "answer_id": "UNCLOS-004", "score": 0.7882786989212036, "sibling_score": 0.7882786989212036, "answer_score": 0.5460047602653503, "sibling_qid": "KOL-2026-03-1198-Q008", "sibling_text": "continental shelf", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is the continental shelf under UNCLOS and what is its range?", "cross_family": false }, { "answer_id": "UNCLOS-003", "score": 0.5808994174003601, "sibling_score": 0.5808994174003601, "answer_score": 0.3985115706920624, "sibling_qid": "KOL-2023-09-0768-Q002", "sibling_text": "what contiguous zone", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What are the maritime zones under UNCLOS — territorial waters, the contiguous zone and the international maritime boundary?", "cross_family": false }, { "answer_id": "UNCLOS-005", "score": 0.5516321063041687, "sibling_score": 0.5516321063041687, "answer_score": 0.4345101296901703, "sibling_qid": "KOC-2024-07-0359-Q001", "sibling_text": "coastal state requirements as per unclos", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is a coastal state under UNCLOS, and how does it differ from the flag state and the port state?", "cross_family": false } ] }, { "qid": "KOL-2021-03-1580-Q005", "text": "air bottle tegulations for a reversible engine. Mitra da ki jai!!!", "family": "Air Compressor", "subtopic": "MAC / Air Compressor", "tid": "KOL-2021-03-1580", "tray": "new", "candidates": [ { "answer_id": "AIRBTL-CORR-001", "score": 0.5852702260017395, "sibling_score": 0.5852702260017395, "answer_score": null, "sibling_qid": "KOL-2022-01-4005-Q005", "sibling_text": "air bottle maintenance why we do", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "AIRBTL-CORR-01 — Air bottle survey and internal inspection — preparation, checks and what you show the surveyor", "cross_family": false }, { "answer_id": "ACRV-001", "score": 0.5641412734985352, "sibling_score": 0.5641412734985352, "answer_score": null, "sibling_qid": "MUM-2026-05-3309-Q008", "sibling_text": "air comp ist stage relif valve lifting reason internal", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "First-stage relief valve lifting or leaking — reasons and checks", "cross_family": false }, { "answer_id": "AIRBTL-CORR-002", "score": 0.5604821443557739, "sibling_score": 0.5604821443557739, "answer_score": null, "sibling_qid": "KOL-2019-11-3286-Q005", "sibling_text": "air bottle pitting repairs", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "AIRBTL-CORR-02 — Air bottle corrosion and pitting — where, why, thickness measurement and what to do when it is excessive", "cross_family": false } ] }, { "qid": "KOL-2021-03-1582-Q005", "text": ") Reasons for crack in Main engine crankshaft", "family": "NDT & Material Testing", "subtopic": "Creep / Fatigue Failure", "tid": "KOL-2021-03-1582", "tray": "review", "candidates": [ { "answer_id": "CRK-DEFL-001", "score": 0.7048346996307373, "sibling_score": 0.7048346996307373, "answer_score": null, "sibling_qid": "CHE-2026-05-0648-Q005", "sibling_text": "stresses on crank shaft not accepting any stress", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Purpose, timing and scope of crankshaft deflection", "cross_family": true }, { "answer_id": "PST-CSI-BF-012", "score": 0.6638062000274658, "sibling_score": 0.6638062000274658, "answer_score": 0.5228662818670272, "sibling_qid": "MUM-2026-04-2104-Q008S4", "sibling_text": "piston crown crack reason", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "What causes a piston crown to crack?", "cross_family": true }, { "answer_id": "CYL-LINER-P03-002", "score": 0.6623295545578003, "sibling_score": 0.6623295545578003, "answer_score": null, "sibling_qid": "MUM-2025-11-0988-Q003", "sibling_text": "cylinder liner cracked reasons", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Detecting and confirming a cracked or leaking liner — and pinning the unit", "cross_family": true } ] }, { "qid": "KOL-2021-03-1582-Q008", "text": ") FQS setting in Man b&w", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Quality / CCAI", "tid": "KOL-2021-03-1582", "tray": "new", "candidates": [ { "answer_id": "VIT-MECH-B-002", "score": 0.6380603909492493, "sibling_score": 0.6380603909492493, "answer_score": null, "sibling_qid": "CHE-2026-08-0651-Q005", "sibling_text": "fq setting", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How VIT is adjusted and set — timing and fuel-quality (FQS) interactions", "cross_family": false }, { "answer_id": "RTFLEX-319-004", "score": 0.4889119565486908, "sibling_score": 0.4889119565486908, "answer_score": null, "sibling_qid": "CHE-2026-03-0255-Q003", "sibling_text": "how fqs setting done in rt flex engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Common-rail fuel injection: control, timing, volume and FQS setting", "cross_family": true }, { "answer_id": "CPP-ATC-02", "score": 0.4648975729942322, "sibling_score": 0.4648975729942322, "answer_score": 0.38096867203712464, "sibling_qid": "CHE-2026-05-0551-Q012", "sibling_text": "fqs adjustment", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "FQS adjustment — what it is, why used, how set", "cross_family": true } ] }, { "qid": "KOL-2021-03-1582-Q010", "text": ") Clearances in turbocharger", "family": "Turbocharger", "subtopic": "TC Clearances / Inspection", "tid": "KOL-2021-03-1582", "tray": "review", "candidates": [ { "answer_id": "SHRD-440-002", "score": 0.7788003087043762, "sibling_score": 0.7788003087043762, "answer_score": null, "sibling_qid": "MUM-2026-09-3878-Q008", "sibling_text": "clearances to be measured in turbocharger of me", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "How is shroud ring clearance checked — access point and procedure?", "cross_family": false }, { "answer_id": "TC-KLM-330-001", "score": 0.7646953463554382, "sibling_score": 0.7646953463554382, "answer_score": 0.5652439892292023, "sibling_qid": "KOL-2026-05-4242-Q004", "sibling_text": "all clearances in turbo charger", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "What are turbocharger K, L and M clearances, and how is each one derived?", "cross_family": false }, { "answer_id": "TURBO-CS-P03-006", "score": 0.7476463913917542, "sibling_score": 0.7476463913917542, "answer_score": 0.6146169692277909, "sibling_qid": "KOL-2019-12-3302-Q003", "sibling_text": "turbocharger clearances", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharger clearances: axial float, radial, K/L/M, effects", "cross_family": false } ] }, { "qid": "KOL-2021-03-1896-Q001", "text": "Internal chaki Ext Paul Type of engine", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOL-2021-03-1896", "tray": "new", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.5738914012908936, "sibling_score": 0.5738914012908936, "answer_score": null, "sibling_qid": "KOL-2026-03-2048-Q001", "sibling_text": "type of engine done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "MIP-264-003", "score": 0.5544636845588684, "sibling_score": 0.5544636845588684, "answer_score": null, "sibling_qid": "MUM-2026-01-1248-Q002", "sibling_text": "engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Calculate engine power: IHP and BHP, and where each is measured", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.5462886095046997, "sibling_score": 0.5462886095046997, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false } ] }, { "qid": "KOL-2021-03-1896-Q006", "text": "what is crank shaft ?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft / Crankpin", "tid": "KOL-2021-03-1896", "tray": "review", "candidates": [ { "answer_id": "CRANK-217-001", "score": 0.7352437376976013, "sibling_score": 0.7352437376976013, "answer_score": 0.5195298582315445, "sibling_qid": "MUM-2022-11-2717-Q003", "sibling_text": "type of crank shaft", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankshaft types and how the type is identified", "cross_family": false }, { "answer_id": "CRANK-217-003", "score": 0.6968567371368408, "sibling_score": 0.6968567371368408, "answer_score": 0.5352600514888763, "sibling_qid": "MUM-2022-10-1031-Q009", "sibling_text": "underslung crankshaft", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Underslung crankshaft", "cross_family": false }, { "answer_id": "CRK-DEFL-006", "score": 0.6933075785636902, "sibling_score": 0.6933075785636902, "answer_score": null, "sibling_qid": "KOL-2017-07-1852-Q006", "sibling_text": "grounding and affect in crankshaft", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Checks after grounding, refloating or heavy weather", "cross_family": false } ] }, { "qid": "KOL-2021-03-2429-Q001", "text": "How many generators on your ship?(Regulation). What was capacity of generator, emergency generator? How much sea load port load.", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator / Generator", "tid": "KOL-2021-03-2429", "tray": "review", "candidates": [ { "answer_id": "EMG-DG-P04-002", "score": 0.6561290621757507, "sibling_score": 0.6561290621757507, "answer_score": null, "sibling_qid": "KOC-2025-07-1559-Q010", "sibling_text": "emergency generator how long should run for cargo and passenger ship", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "PSC / surveyor demonstration during cargo, and required run durations", "cross_family": false }, { "answer_id": "EDG-P01-002", "score": 0.6561141610145569, "sibling_score": 0.6561141610145569, "answer_score": null, "sibling_qid": "KOL-2020-10-2398-Q004", "sibling_text": "what are the regulations for emergency generator location emergency generator supplies power to which part of ship", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Emergency generator room — location and rounds", "cross_family": false }, { "answer_id": "EDG-P01-001", "score": 0.6498425602912903, "sibling_score": 0.6498425602912903, "answer_score": null, "sibling_qid": "KOC-2023-05-0182-Q009", "sibling_text": "emergency generator requirements how much load", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Emergency source of power — the SOLAS requirements", "cross_family": false } ] }, { "qid": "KOL-2021-03-2429-Q003", "text": "Types of starter. In DOL starter how the contacts are made?", "family": "Electrical - Motors & Starters", "subtopic": "DOL Starter", "tid": "KOL-2021-03-2429", "tray": "review", "candidates": [ { "answer_id": "STR-DEC-A-001", "score": 0.6533341407775879, "sibling_score": 0.6533341407775879, "answer_score": null, "sibling_qid": "MUM-2025-09-1635-Q003", "sibling_text": "dol and star delta starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "STARTER-DEC-B-003", "score": 0.6243120431900024, "sibling_score": 0.6243120431900024, "answer_score": 0.47088228464126586, "sibling_qid": "KOC-2025-03-1520-Q001", "sibling_text": "ext sreekumar int senthil 1 dol starter 2 difference between relay and contactor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "DOL starter — use, current, range and limits", "cross_family": false }, { "answer_id": "SDST-A-001", "score": 0.613097608089447, "sibling_score": 0.613097608089447, "answer_score": null, "sibling_qid": "KOL-2021-07-2460-Q006", "sibling_text": "types of starters explain star delta starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false } ] }, { "qid": "KOL-2021-03-2432-Q004", "text": "Boiler water level indicator working?", "family": "Boilers - Mountings & Controls", "subtopic": "Boiler Water Level Indicator", "tid": "KOL-2021-03-2432", "tray": "review", "candidates": [ { "answer_id": "TPL-SENS-B-001", "score": 0.8102376461029053, "sibling_score": 0.8102376461029053, "answer_score": null, "sibling_qid": "KOL-2023-05-2656-Q001", "sibling_text": "boiler remote water level indicator working", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Level sensing — float switches, level transmitters & boiler remote indicators", "cross_family": true }, { "answer_id": "LWL-001", "score": 0.7472621202468872, "sibling_score": 0.7472621202468872, "answer_score": null, "sibling_qid": "KOC-2021-08-1145-Q007", "sibling_text": "three boiler water level control working after 1 hour waiting internal appeared and told u did well", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Explain three-element boiler water level control — the three elements, how it removes swell and shrinkage, and how the PID works", "cross_family": true }, { "answer_id": "DP-TX-002", "score": 0.7472257614135742, "sibling_score": 0.7472257614135742, "answer_score": 0.5879875421524048, "sibling_qid": "KOC-2021-10-1149-Q006", "sibling_text": "boiler remote water level indicator diagram", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler drum-level DP transmitter — wet/reference leg, alarms and trip", "cross_family": true } ] }, { "qid": "KOL-2021-03-2434-Q005", "text": "in DOL STARTER HOW AFTER PUSHING START BUTTON CONECTION IS MADE.", "family": "Electrical - Motors & Starters", "subtopic": "DOL Starter", "tid": "KOL-2021-03-2434", "tray": "new", "candidates": [ { "answer_id": "IMSP-004", "score": 0.5071655511856079, "sibling_score": 0.5071655511856079, "answer_score": null, "sibling_qid": "MUM-2026-03-2002-Q001", "sibling_text": "start delta starter components", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Explain the star-delta starter, and what you find inside it when you open it — its components.", "cross_family": false }, { "answer_id": "EMCY-DG-P03-001", "score": 0.4837448000907898, "sibling_score": 0.4837448000907898, "answer_score": null, "sibling_qid": "MUM-2025-12-1237-Q010", "sibling_text": "how starter motor connection", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Emergency generator — means of starting, starting motor & SOLAS arrangements", "cross_family": false }, { "answer_id": "SHORE-CONN-P02-002", "score": 0.4812570810317993, "sibling_score": 0.4812570810317993, "answer_score": null, "sibling_qid": "KOC-2022-07-1184-Q004", "sibling_text": "shore connection draw and explain checks before connecting", "sibling_family": "", "via": "sibling", "answer_title": "The shore connection single-line diagram — and why the transformer", "cross_family": false } ] }, { "qid": "KOL-2021-03-2437-Q001", "text": "working of salinometer. use of 2nd capactor. formula.", "family": "Heat Exchangers & Coolers", "subtopic": "Salinity Alarm", "tid": "KOL-2021-03-2437", "tray": "new", "candidates": [ { "answer_id": "EPC-P03-007", "score": 0.5963379740715027, "sibling_score": 0.5963379740715027, "answer_score": 0.5049183756113053, "sibling_qid": "KOC-2025-02-1485-Q004", "sibling_text": "salinometer working", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Explain the salinometer — working principle, circuit, probe material, and how the temperature compensation works.", "cross_family": true }, { "answer_id": "CASC-COND-004", "score": 0.37819213569164273, "sibling_score": null, "answer_score": 0.37819213569164273, "sibling_qid": "", "sibling_text": "sea water salinity and dealing with sea water ingress into the cascade tank sw salinity is representative about 35 g l 35 000 ppm chloride 19 000 ppm it varies by sea area not a fixed value sw ingress means a leaking sw cooled tube the dump atmospheric condenser an evaporator or fw generator or a cooler", "sibling_family": "", "via": "answer_title", "answer_title": "Sea-water salinity, and dealing with sea-water ingress into the cascade tank", "cross_family": false }, { "answer_id": "IR-TEST-D-009", "score": 0.3672458857297897, "sibling_score": null, "answer_score": 0.3672458857297897, "sibling_qid": "", "sibling_text": "motor flooded with seawater bringing it back to service and rotor types seawater leaves a conductive salt film must wash chlorides out with fresh demineralised water first drying salty water without flushing bakes salt onto the insulation reading stays low", "sibling_family": "", "via": "answer_title", "answer_title": "Motor flooded with seawater — bringing it back to service (and rotor types)", "cross_family": false } ] }, { "qid": "KOL-2021-03-2437-Q003", "text": "Brushless exciter- working, diagram, Exact location.", "family": "Electrical - Generator & Alternator", "subtopic": "Brushless Alternator", "tid": "KOL-2021-03-2437", "tray": "review", "candidates": [ { "answer_id": "BRUSHALT-A-001", "score": 0.777305543422699, "sibling_score": 0.777305543422699, "answer_score": 0.5445632696151733, "sibling_qid": "MUM-2026-09-3931-Q003", "sibling_text": "brushless excitation system location of each part and construction", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01 · Working principle of the brushless alternator / brushless excitation systemHigh", "cross_family": false }, { "answer_id": "AVR-EXC-G-002", "score": 0.5742942929267884, "sibling_score": null, "answer_score": 0.5742942929267884, "sibling_qid": "", "sibling_text": "brushless excitation how dc reaches the rotor avr senses terminal voltage and sets the dc to the stationary exciter field the exciter is inverted field stationary armature rotating on the shaft", "sibling_family": "", "via": "answer_title", "answer_title": "Brushless excitation: how DC reaches the rotor", "cross_family": false }, { "answer_id": "DIODESO-002", "score": 0.5068967014551162, "sibling_score": null, "answer_score": 0.5068967014551162, "sibling_qid": "", "sibling_text": "explain the rotating diodes in a brushless alternator and the problems that arise in the brushless excitation system including diode short circuit no brushes or slip rings a reliability gain but the rectifier now sits on the rotating shaft and can t be inspected or metered live chain avr stationary exciter field rotating exciter armature rotating rectifier six diodes main rotor field a pilot excit", "sibling_family": "", "via": "answer_title", "answer_title": "Explain the rotating diodes in a brushless alternator and the problems that arise in the brushless excitation system, including diode short circuit", "cross_family": false } ] }, { "qid": "KOL-2021-03-2439-Q002", "text": "What is E*e??", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOL-2021-03-2439", "tray": "new", "candidates": [ { "answer_id": "EECS-009", "score": 0.5302630662918091, "sibling_score": 0.5302630662918091, "answer_score": null, "sibling_qid": "KOL-2021-07-2455-Q008", "sibling_text": "what is eedi", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "09. What is EEDI? Attained and required EEDI and the formula", "cross_family": false }, { "answer_id": "EEDI-A-001", "score": 0.5285487174987793, "sibling_score": 0.5285487174987793, "answer_score": null, "sibling_qid": "CHE-2025-10-0070-Q008", "sibling_text": "what is eedi", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What EEDI is, and why it is required", "cross_family": false }, { "answer_id": "EEDI-C-002", "score": 0.5280064344406128, "sibling_score": 0.5280064344406128, "answer_score": 0.40936971604824063, "sibling_qid": "MUM-2025-10-0508-Q007", "sibling_text": "eedi and eeoi expanded form", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "EEDI versus EEOI — what is the difference?", "cross_family": false } ] }, { "qid": "KOL-2021-03-2441-Q001", "text": "Construction of Rotor of alternator ? How are the windings arranged ?", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator / Generator", "tid": "KOL-2021-03-2441", "tray": "review", "candidates": [ { "answer_id": "ALT-MTN-B-001", "score": 0.6920773386955261, "sibling_score": 0.6920773386955261, "answer_score": null, "sibling_qid": "KOL-2019-08-2318-Q002", "sibling_text": "alternator parts type of windings", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Routine onboard alternator maintenance checks", "cross_family": false }, { "answer_id": "AVR-EXC-H-006", "score": 0.6798776984214783, "sibling_score": 0.6798776984214783, "answer_score": null, "sibling_qid": "KOC-2025-07-1543-Q009", "sibling_text": "field winding and exciter winding", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Short AVR / excitation prompts", "cross_family": false }, { "answer_id": "ROTSTAT-C-003", "score": 0.6715779900550842, "sibling_score": 0.6715779900550842, "answer_score": 0.5225056052207947, "sibling_qid": "KOL-2026-01-2951-Q001", "sibling_text": "alternator stator construction", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Stator construction, winding & types", "cross_family": false } ] }, { "qid": "KOL-2021-03-3384-Q005", "text": "Resilient bolt and use on board.", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Resilient Bolts", "tid": "KOL-2021-03-3384", "tray": "new", "candidates": [ { "answer_id": "FB-COUP-001", "score": 0.6315855979919434, "sibling_score": 0.6315855979919434, "answer_score": 0.4526581078767776, "sibling_qid": "MUM-2026-06-3618-Q009", "sibling_text": "fitted bolts why used", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What fitted bolts are, what they do, and where they sit onboard", "cross_family": false }, { "answer_id": "FB-COUP-002", "score": 0.6034083366394043, "sibling_score": 0.6034083366394043, "answer_score": null, "sibling_qid": "MUM-2024-05-2763-Q003", "sibling_text": "what is fitted bolt where used onboard and interference fit how it is done", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Interference fit and shrink fit — the principle and the difference", "cross_family": false }, { "answer_id": "PRE-TEN-008", "score": 0.4197424754500389, "sibling_score": null, "answer_score": 0.4197424754500389, "sibling_qid": "", "sibling_text": "new auxiliary engine connecting rod bolt checking stretch free condition before use bottom end bolts are the most critical fasteners treat accordingly many makers specify single use confirm the correct maker part number and that it is genuinely unused", "sibling_family": "", "via": "answer_title", "answer_title": "New auxiliary-engine connecting-rod bolt — checking stretch-free condition before use", "cross_family": false } ] }, { "qid": "KOL-2021-03-3385-Q004", "text": "FWG distillate pump not taking suction though sight glass showing full water", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "KOL-2021-03-3385", "tray": "review", "candidates": [ { "answer_id": "PPS-622-004", "score": 0.6592838168144226, "sibling_score": 0.6592838168144226, "answer_score": 0.5186071664094924, "sibling_qid": "KOL-2026-04-3944-Q004", "sibling_text": "during de ballasting pump not taking suction action", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "The bilge or ballast pump is not taking suction — reasons, how to identify the problem, how to rectify it. What does the suction gauge read, and what is suction head?", "cross_family": true }, { "answer_id": "PHL-001", "score": 0.6573432683944702, "sibling_score": 0.6573432683944702, "answer_score": null, "sibling_qid": "KOC-2025-12-1983-Q001", "sibling_text": "blige pump not taking suction reasons if there is hole in line then what will you do i told him fill up water from water connection then he said this is class approved line you can not make water connection so could not answer", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "There is a hole in a line — bilge suction main, sea-water line, starting-air line or steam line: your action as 2/E, and how you find the exact location", "cross_family": true }, { "answer_id": "VAC-COND-002", "score": 0.6462536454200745, "sibling_score": 0.6462536454200745, "answer_score": 0.5003042072057724, "sibling_qid": "KOL-2026-07-4255-Q006", "sibling_text": "fresh water generator not getting vaccum why any 6 reasons", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Low vacuum, suction loss and failure to build vacuum — the reasons", "cross_family": false } ] }, { "qid": "KOL-2021-03-3386-Q002", "text": "pressure testing of cylinder", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Cover / Head", "tid": "KOL-2021-03-3386", "tray": "review", "candidates": [ { "answer_id": "PPT-BF060-001", "score": 0.7610008120536804, "sibling_score": 0.7610008120536804, "answer_score": 0.5224762201309204, "sibling_qid": "MUM-2023-09-2196-Q003", "sibling_text": "pressure testing of piston", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Pressure testing a piston — the procedure, and the test pressure", "cross_family": false }, { "answer_id": "PIST-CSI-C-002", "score": 0.7354357838630676, "sibling_score": 0.7354357838630676, "answer_score": null, "sibling_qid": "KOL-2023-09-3637-Q004", "sibling_text": "piston pressure testing", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston pressure / hydraulic leak testing after overhaul", "cross_family": false }, { "answer_id": "CCH-590-002", "score": 0.7012860178947449, "sibling_score": 0.7012860178947449, "answer_score": 0.5117842525243759, "sibling_qid": "KOL-2017-07-3065-Q003", "sibling_text": "cylinder head of aux engine press test", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "How do you pressure test a cylinder head, and how do you find and rectify a leak from it?", "cross_family": false } ] }, { "qid": "KOL-2021-03-3386-Q003", "text": "fwg pump not taking suction reasons", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "KOL-2021-03-3386", "tray": "review", "candidates": [ { "answer_id": "PCD-P05-04", "score": 0.7085934281349182, "sibling_score": 0.7085934281349182, "answer_score": null, "sibling_qid": "KOC-2026-08-2161-Q004", "sibling_text": "gear pump not taking suction reason", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Gear pump not developing pressure or not discharging — reasons and rectification", "cross_family": true }, { "answer_id": "PPS-622-004", "score": 0.686030387878418, "sibling_score": 0.686030387878418, "answer_score": 0.5452787458896636, "sibling_qid": "KOL-2026-04-3944-Q004", "sibling_text": "during de ballasting pump not taking suction action", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "The bilge or ballast pump is not taking suction — reasons, how to identify the problem, how to rectify it. What does the suction gauge read, and what is suction head?", "cross_family": true }, { "answer_id": "PHL-001", "score": 0.683702290058136, "sibling_score": 0.683702290058136, "answer_score": null, "sibling_qid": "KOC-2025-12-1983-Q001", "sibling_text": "blige pump not taking suction reasons if there is hole in line then what will you do i told him fill up water from water connection then he said this is class approved line you can not make water connection so could not answer", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "There is a hole in a line — bilge suction main, sea-water line, starting-air line or steam line: your action as 2/E, and how you find the exact location", "cross_family": true } ] }, { "qid": "KOL-2021-03-3386-Q005", "text": "bolier saftey valve why floatingring ? Why it is used .", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2021-03-3386", "tray": "new", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.5986132025718689, "sibling_score": 0.5986132025718689, "answer_score": null, "sibling_qid": "MUM-2026-05-3267-Q005", "sibling_text": "boiler safety valve why you required easing gear", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.5842409729957581, "sibling_score": 0.5842409729957581, "answer_score": null, "sibling_qid": "MUM-2026-05-3332-Q004", "sibling_text": "setting of boiler safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "ACRV-005", "score": 0.5709095597267151, "sibling_score": 0.5709095597267151, "answer_score": null, "sibling_qid": "MUM-2026-03-1001-Q003", "sibling_text": "boiler safety valve blowdown", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": false } ] }, { "qid": "KOL-2021-03-3987-Q003", "text": "solid ballast,where we use now.", "family": "", "subtopic": "GM / KM / KB / Metacentric", "tid": "KOL-2021-03-3987", "tray": "new", "candidates": [ { "answer_id": "BWM-D1D2-P03-001", "score": 0.553458034992218, "sibling_score": 0.553458034992218, "answer_score": null, "sibling_qid": "KOC-2022-09-0099-Q007", "sibling_text": "ballast d2 standard", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Regulation D-2 — ballast water performance / discharge standardHigh", "cross_family": false }, { "answer_id": "COT-14", "score": 0.5135840177536011, "sibling_score": 0.5135840177536011, "answer_score": null, "sibling_qid": "KOL-2026-07-4253-Q003", "sibling_text": "segregated ballast and and capacity", "sibling_family": "Ship Construction", "via": "sibling", "answer_title": "SBT applicability, capacity and draught criteria", "cross_family": false }, { "answer_id": "COT-13", "score": 0.4988023042678833, "sibling_score": 0.4988023042678833, "answer_score": null, "sibling_qid": "KOL-2025-08-1026-Q002", "sibling_text": "open ballast", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Segregated, clean, dedicated and open ballast", "cross_family": false } ] }, { "qid": "KOL-2021-03-3987-Q007", "text": "Safety v/v settings.", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2021-03-3987", "tray": "new", "candidates": [ { "answer_id": "ACRV-005", "score": 0.5723066926002502, "sibling_score": 0.5723066926002502, "answer_score": null, "sibling_qid": "MUM-2023-03-1042-Q003", "sibling_text": "safety relief v v difference", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": false }, { "answer_id": "ECON-EGB-004", "score": 0.5263553261756897, "sibling_score": 0.5263553261756897, "answer_score": 0.3665209352970123, "sibling_qid": "KOL-2026-09-4304-Q003", "sibling_text": "safety valve setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Safety-valve setting after overhaul & why set higher than the boiler", "cross_family": false }, { "answer_id": "CO2-SYS-005", "score": 0.5178308486938477, "sibling_score": 0.5178308486938477, "answer_score": null, "sibling_qid": "KOL-2023-03-0727-Q005", "sibling_text": "safeties in co2 system what is the setting of relief v v", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 system safeties, CO2-room requirements, alarms and ventilation", "cross_family": true } ] }, { "qid": "KOL-2021-03-3987-Q008", "text": "rudder locking", "family": "Steering Gear & Hydraulics", "subtopic": "Tiller / Rudder Stock", "tid": "KOL-2021-03-3987", "tray": "new", "candidates": [ { "answer_id": "STEER-055-A-004", "score": 0.6494144797325134, "sibling_score": 0.6494144797325134, "answer_score": null, "sibling_qid": "MUM-2026-07-3762-Q009", "sibling_text": "rudder locking", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Hydraulic faults — air, sluggish response, locking, leakage", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.5429156422615051, "sibling_score": 0.5429156422615051, "answer_score": null, "sibling_qid": "MUM-2026-06-3564-Q005", "sibling_text": "checks in dd on rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "TRS-002", "score": 0.5182495713233948, "sibling_score": 0.5182495713233948, "answer_score": null, "sibling_qid": "MUM-2024-12-1098-Q005", "sibling_text": "how coupling for rudder is done", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false } ] }, { "qid": "KOL-2021-03-3988-Q002", "text": "Last ship Alternator Ratings.", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Faraday Law", "tid": "KOL-2021-03-3988", "tray": "review", "candidates": [ { "answer_id": "ALT-GEN-P02-001", "score": 0.752133309841156, "sibling_score": 0.752133309841156, "answer_score": 0.515927094221115, "sibling_qid": "KOL-2021-07-2472-Q001", "sibling_text": "rating of previous ship alternator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Alternator/generator specifications, ratings and ship electrical supply details", "cross_family": true }, { "answer_id": "PF-A-002", "score": 0.6240687370300293, "sibling_score": 0.6240687370300293, "answer_score": null, "sibling_qid": "MUM-2026-09-3923-Q001", "sibling_text": "power factor on last ship 0 8 lag", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Lagging, leading, unity, resistive, inductive, capacitive — and DC", "cross_family": false }, { "answer_id": "ALT-GEN-P01-002", "score": 0.5981473922729492, "sibling_score": 0.5981473922729492, "answer_score": 0.4160121396183967, "sibling_qid": "KOL-2022-05-2570-Q002", "sibling_text": "what type of alternator you had on your last ship", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "2. Types of generator/alternator carried onboard", "cross_family": true } ] }, { "qid": "KOL-2021-03-3988-Q003", "text": "What's Reverse power trip.", "family": "Electrical - Generator & Alternator", "subtopic": "Reverse Power Trip", "tid": "KOL-2021-03-3988", "tray": "review", "candidates": [ { "answer_id": "RPT-A-001", "score": 0.7447195053100586, "sibling_score": 0.7447195053100586, "answer_score": 0.4616238534450531, "sibling_qid": "MUM-2023-07-2739-Q006", "sibling_text": "reverse power trip function", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Reverse power: what it is, why it happens, why we protect against it", "cross_family": false }, { "answer_id": "RPT-A-003", "score": 0.7201368808746338, "sibling_score": 0.7201368808746338, "answer_score": 0.4961652159690857, "sibling_qid": "KOL-2020-06-2383-Q003", "sibling_text": "reverse power trip working", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "How the reverse-power trip works, and the sequence once reverse power develops", "cross_family": false }, { "answer_id": "RPT-A-002", "score": 0.7193117737770081, "sibling_score": 0.7193117737770081, "answer_score": 0.4815230816602707, "sibling_qid": "CHE-2025-08-0294-Q002", "sibling_text": "reverse power trip", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Explain reverse power trip", "cross_family": false } ] }, { "qid": "KOL-2021-03-3988-Q004", "text": "HV MSB Safeties.", "family": "Electrical - Distribution & MSB", "subtopic": "High Voltage System / Earthing / Shore Supply", "tid": "KOL-2021-03-3988", "tray": "review", "candidates": [ { "answer_id": "HV-SYS-P05-001", "score": 0.7409352660179138, "sibling_score": 0.7409352660179138, "answer_score": 0.41705786883831025, "sibling_qid": "KOL-2026-07-4263-Q006", "sibling_text": "hv msb safeties", "sibling_family": "Electrical - Distribution & MSB", "via": "sibling", "answer_title": "HV switchboard (MSB): safeties, interlocks and protective features", "cross_family": false }, { "answer_id": "MSB-ESB-F-001", "score": 0.6557528376579285, "sibling_score": 0.6557528376579285, "answer_score": 0.3852922573685646, "sibling_qid": "MUM-2026-06-3666-Q002", "sibling_text": "msb safety", "sibling_family": "Electrical - Distribution & MSB", "via": "sibling", "answer_title": "What safeties, protection trips, relays and alarms are provided on the MSB/ESB and how are they tested?", "cross_family": false }, { "answer_id": "MSB-ESB-E-001", "score": 0.6516292095184326, "sibling_score": 0.6516292095184326, "answer_score": null, "sibling_qid": "KOC-2026-10-2222-Q005", "sibling_text": "msb safeties", "sibling_family": "Electrical - Distribution & MSB", "via": "sibling", "answer_title": "What safeties, protection trips, relays and alarms are provided on the MSB / ESB, and how are they tested?", "cross_family": false } ] }, { "qid": "KOL-2021-03-3988-Q006", "text": "AVR function. How Excitation occurs?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Faraday Law", "tid": "KOL-2021-03-3988", "tray": "new", "candidates": [ { "answer_id": "AVR-EXC-C-001", "score": 0.6416702270507812, "sibling_score": 0.6416702270507812, "answer_score": 0.46666071116924285, "sibling_qid": "MUM-2026-05-3295-Q007", "sibling_text": "types of avr how excitation happens", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Types of AVR / excitation and how one is selected", "cross_family": true }, { "answer_id": "AVR-EXC-A-001", "score": 0.6310001611709595, "sibling_score": 0.6310001611709595, "answer_score": null, "sibling_qid": "CHE-2026-04-0368-Q008", "sibling_text": "what is excitation where the exciter how avr is controlling the excitation", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "What is the purpose and function of the AVR?", "cross_family": true }, { "answer_id": "AVR-EXC-D-001", "score": 0.5979270339012146, "sibling_score": 0.5979270339012146, "answer_score": null, "sibling_qid": "KOC-2024-10-1415-Q004", "sibling_text": "types of excitation explain static avr", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Static AVR / static excitation — types of AVR, and how the static system works", "cross_family": true } ] }, { "qid": "KOL-2021-04-0487-Q004", "text": "Radius of Gyration", "family": "SOLAS", "subtopic": "Static / Dynamic Stability", "tid": "KOL-2021-04-0487", "tray": "review", "candidates": [ { "answer_id": "BK-001", "score": 0.7234664559364319, "sibling_score": 0.7234664559364319, "answer_score": null, "sibling_qid": "KOC-2026-03-0878-Q015", "sibling_text": "raduis of gyration", "sibling_family": "", "via": "sibling", "answer_title": "What is a bilge keel and what is its purpose?", "cross_family": false }, { "answer_id": "BK-004", "score": 0.680909276008606, "sibling_score": 0.680909276008606, "answer_score": null, "sibling_qid": "KOC-2025-07-0633-Q019", "sibling_text": "how its connected radius of gyration", "sibling_family": "", "via": "sibling", "answer_title": "How is a bilge keel attached to the hull, and how is hull cracking or rupture controlled?", "cross_family": false }, { "answer_id": "BK-002", "score": 0.6116406917572021, "sibling_score": 0.6116406917572021, "answer_score": null, "sibling_qid": "KOC-2025-12-0760-Q003", "sibling_text": "radius of gyration time period of roll", "sibling_family": "", "via": "sibling", "answer_title": "How does a bilge keel reduce rolling, and how does it relate to roll period and radius of gyration?", "cross_family": false } ] }, { "qid": "KOL-2021-04-0488-Q003", "text": "Where is the centre of axis of man hole door(longitudinal or transverse direction) and why?", "family": "", "subtopic": "Hatch Coaming", "tid": "KOL-2021-04-0488", "tray": "new", "candidates": [ { "answer_id": "DB-TBOX-C-001", "score": 0.6090655326843262, "sibling_score": 0.6090655326843262, "answer_score": 0.47719521522521974, "sibling_qid": "KOL-2026-01-1160-Q008", "sibling_text": "direction of minor axis of manhole", "sibling_family": "", "via": "sibling", "answer_title": "Manholes & deck openings — why the major axis runs fore-and-aft", "cross_family": false }, { "answer_id": "BLR-DRUM-005", "score": 0.5539016723632812, "sibling_score": 0.5539016723632812, "answer_score": 0.5289743274450301, "sibling_qid": "KOL-2021-07-1603-Q009", "sibling_text": "boiler manhole door minor axis orientation why so", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Boiler manhole-door minor-axis orientation — longitudinal vs transverse stress", "cross_family": false }, { "answer_id": "BLR-MANHOLE-002", "score": 0.478293240070343, "sibling_score": 0.478293240070343, "answer_score": 0.43975090980529785, "sibling_qid": "KOL-2018-01-1343-Q005", "sibling_text": "hole major axis on which side if cut on boiler", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Why is the manhole door elliptical, and which way does the major axis run?", "cross_family": false } ] }, { "qid": "KOL-2021-04-0490-Q001", "text": "Type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2021-04-0490", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8366292119026184, "sibling_score": 0.8366292119026184, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8018827438354492, "sibling_score": 0.8018827438354492, "answer_score": 0.5473108768463134, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8003316521644592, "sibling_score": 0.8003316521644592, "answer_score": 0.5218650102615356, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "KOL-2021-04-0491-Q002", "text": "Length between perpendicular And significance.", "family": "Ship Construction", "subtopic": "Principal Dimensions / Ship Dimensions Diagram", "tid": "KOL-2021-04-0491", "tray": "new", "candidates": [ { "answer_id": "SB-RATIO-001", "score": 0.5396729111671448, "sibling_score": 0.5396729111671448, "answer_score": null, "sibling_qid": "MUM-2026-03-1303-Q004", "sibling_text": "length of stroke", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What is the stroke-to-bore ratio? Its significance, its upper and lower values, and the ratio of your own engine", "cross_family": true }, { "answer_id": "BK-003", "score": 0.5283271670341492, "sibling_score": 0.5283271670341492, "answer_score": null, "sibling_qid": "KOC-2025-07-0633-Q018", "sibling_text": "length deciding factor", "sibling_family": "", "via": "sibling", "answer_title": "What are the bilge-keel design, length, depth and protrusion requirements?", "cross_family": false }, { "answer_id": "FL-PERM-P01-003", "score": 0.525672435760498, "sibling_score": 0.525672435760498, "answer_score": null, "sibling_qid": "KOL-2017-12-0135-Q003", "sibling_text": "permisiable length", "sibling_family": "", "via": "sibling", "answer_title": "What is floodable length?", "cross_family": false } ] }, { "qid": "KOL-2021-04-0497-Q003", "text": "continental shelf", "family": "Other Conventions", "subtopic": "UNCLOS", "tid": "KOL-2021-04-0497", "tray": "review", "candidates": [ { "answer_id": "UNCLOS-004", "score": 0.8498051166534424, "sibling_score": 0.8498051166534424, "answer_score": 0.5654816538095474, "sibling_qid": "KOL-2026-03-1198-Q008", "sibling_text": "continental shelf", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is the continental shelf under UNCLOS and what is its range?", "cross_family": false }, { "answer_id": "UNCLOS-003", "score": 0.6515734791755676, "sibling_score": 0.6515734791755676, "answer_score": 0.43070780038833617, "sibling_qid": "KOL-2025-09-1054-Q007", "sibling_text": "territorial waters", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What are the maritime zones under UNCLOS — territorial waters, the contiguous zone and the international maritime boundary?", "cross_family": false }, { "answer_id": "UNCLOS-005", "score": 0.639553964138031, "sibling_score": 0.639553964138031, "answer_score": 0.471073642373085, "sibling_qid": "KOC-2024-07-0359-Q001", "sibling_text": "coastal state requirements as per unclos", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is a coastal state under UNCLOS, and how does it differ from the flag state and the port state?", "cross_family": false } ] }, { "qid": "KOL-2021-04-1897-Q002", "text": "Can we repair crankshaft crack onboard and propel the ship", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft / Crankpin", "tid": "KOL-2021-04-1897", "tray": "review", "candidates": [ { "answer_id": "CRKPIN-P02-003", "score": 0.6620867848396301, "sibling_score": 0.6620867848396301, "answer_score": 0.4963537871837616, "sibling_qid": "KOL-2022-07-3545-Q005", "sibling_text": "on unit crankpin bearing damage beyond repair no bearing onboard how to reach port", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankpin or bearing beyond repair / no spare — casualty action", "cross_family": false }, { "answer_id": "CRKC-INSP-002", "score": 0.6377723813056946, "sibling_score": 0.6377723813056946, "answer_score": null, "sibling_qid": "KOL-2021-11-3486-Q002", "sibling_text": "ship sailed through rough weather c e asked you to check crankshaft what will u check", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Quick crankcase inspection after rough weather or grounding (short port stay)", "cross_family": false }, { "answer_id": "CRK-DEFL-006", "score": 0.6330846548080444, "sibling_score": 0.6330846548080444, "answer_score": null, "sibling_qid": "KOC-2024-01-1828-Q007", "sibling_text": "your ship grounded what all you check crankshaft deflection", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Checks after grounding, refloating or heavy weather", "cross_family": false } ] }, { "qid": "KOL-2021-04-1897-Q003", "text": "What all inspections you carry out , if you found bedplate crack on a sister vessel", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Bedplate / A-Frame", "tid": "KOL-2021-04-1897", "tray": "review", "candidates": [ { "answer_id": "BED-CHOCK-001", "score": 0.7293716073036194, "sibling_score": 0.7293716073036194, "answer_score": null, "sibling_qid": "KOL-2026-05-4197-Q004", "sibling_text": "where to check bedplate crack on ship", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "How is the main-engine bedplate fixed to the ship's structure?", "cross_family": false }, { "answer_id": "NDT-METH-P03-002", "score": 0.6158882975578308, "sibling_score": 0.6158882975578308, "answer_score": null, "sibling_qid": "KOC-2023-07-0925-Q018", "sibling_text": "your ship side shell plating cropped and welded how you will check for that there is no crack what all you checkes", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Component crack testing — weld, hull plate, tailshaft, crankshaft, piston, serrations", "cross_family": true }, { "answer_id": "PW-327-003", "score": 0.6006619930267334, "sibling_score": 0.6006619930267334, "answer_score": null, "sibling_qid": "MUM-2022-09-2145-Q010", "sibling_text": "if in drydock crack on shell plate welding action if no class surveyor available", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "3. Shell / deck plate repair and renewal in dry dock (class context)", "cross_family": true } ] }, { "qid": "KOL-2021-04-1897-Q007", "text": "How do you carry out safety valve setting", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2021-04-1897", "tray": "review", "candidates": [ { "answer_id": "ECON-EGB-004", "score": 0.754665195941925, "sibling_score": 0.754665195941925, "answer_score": 0.5890796035528183, "sibling_qid": "CHE-2026-05-0601-Q010", "sibling_text": "safety valve setting procedure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Safety-valve setting after overhaul & why set higher than the boiler", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.7402345538139343, "sibling_score": 0.7402345538139343, "answer_score": null, "sibling_qid": "MUM-2026-02-1255-Q006", "sibling_text": "setting of safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.7310799956321716, "sibling_score": 0.7310799956321716, "answer_score": null, "sibling_qid": "KOC-2026-09-2205-Q019", "sibling_text": "setting safety valve infront of surveyor", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false } ] }, { "qid": "KOL-2021-04-1897-Q012", "text": "why you need 4 generators ? what is running load and capacity of electrical propulsion motors STEAM :", "family": "Electrical - Generator & Alternator", "subtopic": "Load Sharing Imbalance", "tid": "KOL-2021-04-1897", "tray": "new", "candidates": [ { "answer_id": "LS-IMB-A-001", "score": 0.6076509356498718, "sibling_score": 0.6076509356498718, "answer_score": null, "sibling_qid": "KOL-2026-05-4097-Q003", "sibling_text": "one generator taking 380 kw another 320 kw in parallel reason", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Two paralleled generators sharing unequal load — cause and correction", "cross_family": false }, { "answer_id": "LS-IMB-A-003", "score": 0.6059619188308716, "sibling_score": 0.6059619188308716, "answer_score": 0.4420056581497192, "sibling_qid": "MUM-2021-05-1325-Q002", "sibling_text": "2 generator running in parallel 1 has load of 350 and anothe only 250 kw reason wanted to hear about governor what type of governor used for a e", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "3. Paralleling generators of different ratings, and the emergency-generator question", "cross_family": false }, { "answer_id": "LS-IMB-A-002", "score": 0.591049313545227, "sibling_score": 0.591049313545227, "answer_score": null, "sibling_qid": "KOL-2022-07-2574-Q004", "sibling_text": "two generators running parallel one generator rpm little less why", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "2. Governor speed droop, isochronous control and the load-control switch", "cross_family": false } ] }, { "qid": "KOL-2021-04-1897-Q013", "text": "turbine specifications ??", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOL-2021-04-1897", "tray": "review", "candidates": [ { "answer_id": "BLR-CAP-BOILER-CAPACITY-RATING-006", "score": 0.7325180768966675, "sibling_score": 0.7325180768966675, "answer_score": null, "sibling_qid": "MUM-2022-08-0942-Q002", "sibling_text": "boiler specs complete turbine specs", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "State the boiler specifications relevant to rating/capacity.", "cross_family": true }, { "answer_id": "COPT-BF043-003", "score": 0.6586605310440063, "sibling_score": 0.6586605310440063, "answer_score": null, "sibling_qid": "MUM-2026-05-3310-Q002", "sibling_text": "copt turbine type and stages", "sibling_family": "Steam & Turbine Plant", "via": "sibling", "answer_title": "3. Starting and running a COPT; bringing No.2 on with No.1 running", "cross_family": true }, { "answer_id": "TURBO-CS-P02-004", "score": 0.6576601266860962, "sibling_score": 0.6576601266860962, "answer_score": null, "sibling_qid": "MUM-2026-09-3915-Q002", "sibling_text": "turbocharger specifications", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharger clearances — what, how, and the k/l/m values", "cross_family": true } ] }, { "qid": "KOL-2021-04-1897-Q014", "text": "boiler specifications ? type ? evap rate ?model type ?", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOL-2021-04-1897", "tray": "review", "candidates": [ { "answer_id": "CMPB-561-001", "score": 0.7543712854385376, "sibling_score": 0.7543712854385376, "answer_score": null, "sibling_qid": "MUM-2026-05-3001-Q007", "sibling_text": "type of boiler evaporation rate", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Double-evaporation boiler — what it is, and how it differs from a composite boiler", "cross_family": true }, { "answer_id": "BLR-CAP-BOILER-CAPACITY-RATING-006", "score": 0.6432346105575562, "sibling_score": 0.6432346105575562, "answer_score": 0.5919976949691772, "sibling_qid": "KOC-2026-05-0034-Q009", "sibling_text": "boiler specifications", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "State the boiler specifications relevant to rating/capacity.", "cross_family": true }, { "answer_id": "BLR-CAP-BOILER-CAPACITY-RATING-005", "score": 0.6263248324394226, "sibling_score": 0.6263248324394226, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q009", "sibling_text": "type of boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "What are boiler pressure ratings or maximum working pressure?", "cross_family": true } ] }, { "qid": "KOL-2021-04-1897-Q015", "text": "Turbine type , gear type etc etc on specification", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOL-2021-04-1897", "tray": "review", "candidates": [ { "answer_id": "COPT-BF043-003", "score": 0.6687940359115601, "sibling_score": 0.6687940359115601, "answer_score": null, "sibling_qid": "MUM-2026-05-3310-Q002", "sibling_text": "copt turbine type and stages", "sibling_family": "Steam & Turbine Plant", "via": "sibling", "answer_title": "3. Starting and running a COPT; bringing No.2 on with No.1 running", "cross_family": true }, { "answer_id": "BLR-CAP-BOILER-CAPACITY-RATING-006", "score": 0.6686211824417114, "sibling_score": 0.6686211824417114, "answer_score": null, "sibling_qid": "MUM-2022-08-0942-Q002", "sibling_text": "boiler specs complete turbine specs", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "State the boiler specifications relevant to rating/capacity.", "cross_family": true }, { "answer_id": "TC-CONST-004", "score": 0.649482011795044, "sibling_score": 0.649482011795044, "answer_score": null, "sibling_qid": "MUM-2026-03-2937-Q003", "sibling_text": "type of vanes in turbine", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbine-side components: nozzle rings, vanes and blade fitting", "cross_family": true } ] }, { "qid": "KOL-2021-04-1897-Q016", "text": "Type of gearing ? why is it called sun planet arrangement ? what is the difference between other types ? why do use helical gears and not spur gears ?", "family": "Pumps - Centrifugal & PD", "subtopic": "Gear / Screw / Mono Pump", "tid": "KOL-2021-04-1897", "tray": "new", "candidates": [ { "answer_id": "CHAIN-TENS-B-003", "score": 0.5170526504516602, "sibling_score": 0.5170526504516602, "answer_score": null, "sibling_qid": "MUM-2026-05-3274-Q006", "sibling_text": "chain sprockets numbers and type spur or helical but spur not accepted", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Chain-drive arrangement — sprockets, idlers, links and chain case", "cross_family": true }, { "answer_id": "CHAIN-TENS-B-004", "score": 0.49064111709594727, "sibling_score": 0.49064111709594727, "answer_score": null, "sibling_qid": "MUM-2026-04-1315-Q003", "sibling_text": "difference between chain gear drive", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Chain drive versus gear drive for the camshaft", "cross_family": true }, { "answer_id": "TG-MOTOR-001", "score": 0.48573988676071167, "sibling_score": 0.48573988676071167, "answer_score": null, "sibling_qid": "MUM-2026-06-3467-Q001", "sibling_text": "turning gear motor difference from other motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What type of motor is used for the turning gear, and what type of rotor does it have?", "cross_family": true } ] }, { "qid": "KOL-2021-04-1897-Q017", "text": "what are the safeties of astern turbine ? where exactly is asternwater spray injected ?", "family": "Steam & Turbine Plant", "subtopic": "Turbine Construction / Blading / Stages", "tid": "KOL-2021-04-1897", "tray": "new", "candidates": [ { "answer_id": "FIRE-P02-03", "score": 0.45723140239715576, "sibling_score": 0.45723140239715576, "answer_score": null, "sibling_qid": "KOL-2017-01-0060-Q003", "sibling_text": "hyper mist how its activated saftey measures to give indication of low level in fw tank apart form low level float alarm", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist — low water level or empty FW tank contingency", "cross_family": true }, { "answer_id": "TC-SURGE-001", "score": 0.45415574312210083, "sibling_score": 0.45415574312210083, "answer_score": null, "sibling_qid": "KOL-2026-03-3930-Q005", "sibling_text": "safety valve in your ship 5 turbocharger surging how where", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "What is turbocharger surging, and what happens inside the turbocharger when it surges?", "cross_family": true }, { "answer_id": "STT-BRG-003", "score": 0.44954022765159607, "sibling_score": 0.44954022765159607, "answer_score": null, "sibling_qid": "MUM-2024-07-0188-Q004", "sibling_text": "stern tube lip seal arrangement and location not agreeing to anything saying these are not in safety part", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "2. Stern tube seals — lip, radial-face and simplex arrangement (oil and air)", "cross_family": true } ] }, { "qid": "KOL-2021-04-1897-Q021", "text": "what precautions do you take while setting safety valve of main boiler and in particular with super heater safety valve ?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2021-04-1897", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P01-001", "score": 0.756371796131134, "sibling_score": 0.756371796131134, "answer_score": null, "sibling_qid": "MUM-2026-03-2935-Q013", "sibling_text": "boiler safety valve setting in presence of surveyor after survey", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.7395845055580139, "sibling_score": 0.7395845055580139, "answer_score": null, "sibling_qid": "KOC-2026-05-0003-Q005", "sibling_text": "boiler safety valve setting procedure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.7141238451004028, "sibling_score": 0.7141238451004028, "answer_score": null, "sibling_qid": "KOC-2026-05-0034-Q010", "sibling_text": "boiler safety valve types and how safety valve is set complete procedures", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOL-2021-04-1897-Q025", "text": "turn down ratio ? what does it indicate ?", "family": "Boilers - Operations & Firing", "subtopic": "Burner Type (Rotary Cup / Pressure Jet)", "tid": "KOL-2021-04-1897", "tray": "review", "candidates": [ { "answer_id": "BFS-257-004", "score": 0.6901055574417114, "sibling_score": 0.6901055574417114, "answer_score": null, "sibling_qid": "KOC-2025-02-1900-Q001", "sibling_text": "turn down ratio", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler burner turn-down ratio", "cross_family": false }, { "answer_id": "TDR-584-001", "score": 0.6898319721221924, "sibling_score": 0.6898319721221924, "answer_score": 0.3527130588889122, "sibling_qid": "KOL-2023-05-1739-Q004", "sibling_text": "turn down ratio", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "What is the turndown ratio of a marine boiler? Explain.", "cross_family": false }, { "answer_id": "ETP-344-P01-009", "score": 0.39421476125717164, "sibling_score": null, "answer_score": 0.39421476125717164, "sibling_qid": "", "sibling_text": "turndown ratio turndown maximum usable output minimum stable controllable output a ratio wide turndown low minimum stable rpm good slow steaming and manoeuvring flexibility", "sibling_family": "", "via": "answer_title", "answer_title": "Turndown ratio", "cross_family": false } ] }, { "qid": "KOL-2021-04-2442-Q003", "text": "ICCP ?", "family": "Electrical - ICCP & Cathodic Protection", "subtopic": "ICCP", "tid": "KOL-2021-04-2442", "tray": "review", "candidates": [ { "answer_id": "ICCP-119-P01-001", "score": 0.7973339557647705, "sibling_score": 0.7973339557647705, "answer_score": 0.4765098839998245, "sibling_qid": "MUM-2025-08-1577-Q002", "sibling_text": "iccp", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP — purpose, principle and basic working", "cross_family": false }, { "answer_id": "ICCP-119-P01-002", "score": 0.4520989298820495, "sibling_score": null, "answer_score": 0.4520989298820495, "sibling_qid": "", "sibling_text": "iccp circuit control arrangement construction and main components", "sibling_family": "", "via": "answer_title", "answer_title": "ICCP circuit / control arrangement, construction and main components", "cross_family": false }, { "answer_id": "ICCP-119-P01-003", "score": 0.3960600942373276, "sibling_score": null, "answer_score": 0.3960600942373276, "sibling_qid": "", "sibling_text": "iccp values impressed current meaning anode cathode roles and materials", "sibling_family": "", "via": "answer_title", "answer_title": "ICCP values, impressed-current meaning, anode/cathode roles and materials", "cross_family": false } ] }, { "qid": "KOL-2021-04-2445-Q001", "text": "Alternator safeties in switch board ?", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator Protection", "tid": "KOL-2021-04-2445", "tray": "review", "candidates": [ { "answer_id": "ALT-GEN-P01-001", "score": 0.7717599272727966, "sibling_score": 0.7717599272727966, "answer_score": 0.5373219728469848, "sibling_qid": "KOC-2025-05-1537-Q003", "sibling_text": "alternator safeties mounted on alternator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Alternator/generator safeties and protection trips", "cross_family": false }, { "answer_id": "ALT-MAINT-A-001", "score": 0.5163799285888672, "sibling_score": null, "answer_score": 0.5163799285888672, "sibling_qid": "", "sibling_text": "routine maintenance care of a ship s alternator make safe first permit to work isolate rack out and lock off the breaker immobilise the prime mover the set is engine driven a blackout dead bus auto start can crank it prove dead discharge the windings the space heater supply is separate it stays live after the alternator breaker is open isolate it independently before touching the windings", "sibling_family": "", "via": "answer_title", "answer_title": "Routine maintenance & care of a ship’s alternator", "cross_family": false }, { "answer_id": "SHAFT-GEN-005", "score": 0.504120671749115, "sibling_score": null, "answer_score": 0.504120671749115, "sibling_qid": "", "sibling_text": "safeties provided for a shaft generator standard alternator protections over current short circuit over under voltage over under frequency reverse power paralleled earth fault and preferential load shedding trips sg specific interlocks breaker closes only when synchronised clutch gear engagement interlocks", "sibling_family": "", "via": "answer_title", "answer_title": "Safeties provided for a shaft generator", "cross_family": false } ] }, { "qid": "KOL-2021-04-3391-Q002", "text": "After Decarbonisation, running engine conditions and checks", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Engine Not Starting", "tid": "KOL-2021-04-3391", "tray": "review", "candidates": [ { "answer_id": "AEDEC-291-003", "score": 0.6834594011306763, "sibling_score": 0.6834594011306763, "answer_score": 0.49906608164310456, "sibling_qid": "KOL-2018-08-3182-Q003", "sibling_text": "checks after generator decarb", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "3. Pre-start checks after decarb / recommissioning", "cross_family": true }, { "answer_id": "FP-OVHL-004", "score": 0.6227396726608276, "sibling_score": 0.6227396726608276, "answer_score": null, "sibling_qid": "KOL-2017-03-3040-Q008", "sibling_text": "what checks in auxiliary engine fuel pump and injector decarb interval", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Overhaul procedure, boxing-up checks, and briefing the junior", "cross_family": false }, { "answer_id": "AEDEC-291-004", "score": 0.5951871275901794, "sibling_score": 0.5951871275901794, "answer_score": null, "sibling_qid": "KOL-2019-11-3298-Q002", "sibling_text": "ae full oh carried out ae running on no load what all things u will check as 2nd eng not satisfied with answer", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "4. Checks on no-load and before taking load", "cross_family": true } ] }, { "qid": "KOL-2021-04-3394-Q001", "text": "rudder plate cracked..how will you repair?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2021-04-3394", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.7449073791503906, "sibling_score": 0.7449073791503906, "answer_score": null, "sibling_qid": "MUM-2026-04-2689-Q008", "sibling_text": "rudder crack repair", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "HULL-DD-001", "score": 0.6230639219284058, "sibling_score": 0.6230639219284058, "answer_score": null, "sibling_qid": "KOL-2020-06-3981-Q008", "sibling_text": "hull plating cracked how to repair", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "1. Hull plate / shell-weld crack repair in drydock", "cross_family": true }, { "answer_id": "WBS-C-006", "score": 0.5269888073205947, "sibling_score": null, "answer_score": 0.5269888073205947, "sibling_qid": "", "sibling_text": "propeller and rudder repair grading the damage and the class approved route grade the damage first minor nicks erosion bent tip vs crack major minor grind and blend out the notch restore a fair section keep balance small cold repair epoxy fillers for minor surface defects only", "sibling_family": "", "via": "answer_title", "answer_title": "Propeller and rudder repair — grading the damage and the Class-approved route", "cross_family": false } ] }, { "qid": "KOL-2021-04-3394-Q002", "text": "how rudder is painted internally?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Painting", "tid": "KOL-2021-04-3394", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.7710052132606506, "sibling_score": 0.7710052132606506, "answer_score": null, "sibling_qid": "MUM-2026-05-3150-Q003", "sibling_text": "rudder internal painting", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "HULL-PAINT-002", "score": 0.7710052132606506, "sibling_score": 0.7710052132606506, "answer_score": null, "sibling_qid": "CHE-2026-02-0110-Q012", "sibling_text": "rudder internal painting", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Types of hull coating, the paint scheme by section, and why each is used", "cross_family": false }, { "answer_id": "TRS-002", "score": 0.5487645268440247, "sibling_score": 0.5487645268440247, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false } ] }, { "qid": "KOL-2021-04-3401-Q003", "text": "check on safety valve before assembly", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2021-04-3401", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P01-001", "score": 0.7749353051185608, "sibling_score": 0.7749353051185608, "answer_score": null, "sibling_qid": "MUM-2026-03-2589-Q003", "sibling_text": "checks on safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-003", "score": 0.6958675384521484, "sibling_score": 0.6958675384521484, "answer_score": 0.5044227302074432, "sibling_qid": "MUM-2023-03-1044-Q007", "sibling_text": "accumulation of pressure test y is it carried out a how do u know if ur safety valve is of proper size", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "The accumulation test and the safety valve — required lift, how lift and capacity are verified, and why accumulation must stay inside the limit", "cross_family": false }, { "answer_id": "ECON-EGB-004", "score": 0.650690495967865, "sibling_score": 0.650690495967865, "answer_score": null, "sibling_qid": "CHE-2026-05-0601-Q010", "sibling_text": "safety valve setting procedure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Safety-valve setting after overhaul & why set higher than the boiler", "cross_family": false } ] }, { "qid": "KOL-2021-04-3402-Q006", "text": "What are all difficulties in aluminium welding, which welding you prefer and why?.", "family": "Workshop & Welding", "subtopic": "Welding / NDT / Materials", "tid": "KOL-2021-04-3402", "tray": "review", "candidates": [ { "answer_id": "WELD-B-001", "score": 0.7557106614112854, "sibling_score": 0.7557106614112854, "answer_score": 0.47540196478366853, "sibling_qid": "MUM-2021-06-2129-Q001", "sibling_text": "aluminium welding difficulties and procedures", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding & crack-repair of aluminium and cast iron, including metal stitching", "cross_family": false }, { "answer_id": "WBS-C-001", "score": 0.7125442624092102, "sibling_score": 0.7125442624092102, "answer_score": null, "sibling_qid": "KOL-2018-01-3111-Q001", "sibling_text": "alumunium welding diffuclties and how are they dealt with", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding, brazing and soldering — what they are, the shipboard processes, and workshop safety", "cross_family": false }, { "answer_id": "WELD-PATM-005", "score": 0.6908127069473267, "sibling_score": 0.6908127069473267, "answer_score": null, "sibling_qid": "KOL-2021-12-3501-Q003", "sibling_text": "aluminium welding tig welding and mig welding difference", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "TIG vs MIG – differences, uses, advantages", "cross_family": false } ] }, { "qid": "KOL-2021-04-3989-Q003", "text": "Checks before connecting Shore Supply? If phase sequence is wrong what will happen?", "family": "Electrical - Distribution & MSB", "subtopic": "High Voltage System / Earthing / Shore Supply", "tid": "KOL-2021-04-3989", "tray": "review", "candidates": [ { "answer_id": "SHORE-CONN-P02-003", "score": 0.7956254482269287, "sibling_score": 0.7956254482269287, "answer_score": null, "sibling_qid": "KOC-2025-04-1526-Q004", "sibling_text": "shore supply pre checks what to do in case the phase sequence is not matching few more can t remember internal", "sibling_family": "", "via": "sibling", "answer_title": "Phase sequence — checking, correcting, and when the indicator is dead", "cross_family": false }, { "answer_id": "PH-SEQ-002", "score": 0.739802360534668, "sibling_score": 0.739802360534668, "answer_score": 0.6292948216199875, "sibling_qid": "MUM-2026-06-3424-Q006", "sibling_text": "shore connection box and how to check correct phase sequence if sequence indicator not working", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "How do you check or verify correct phase sequence, including at shore supply?", "cross_family": true }, { "answer_id": "SHORE-CONN-P04-001", "score": 0.6821842789649963, "sibling_score": 0.6821842789649963, "answer_score": null, "sibling_qid": "KOL-2022-10-2613-Q002", "sibling_text": "parameters to be check before shore supply connection i told him about voltage frequency and vfd as remedy location of connection box he told me u are missing one more parameters i told phase then he was happy told me why u were waiting for this", "sibling_family": "", "via": "sibling", "answer_title": "Accepting shore supply at a different frequency or voltage (incl. dry dock)", "cross_family": false } ] }, { "qid": "KOL-2021-04-3989-Q004", "text": "Why HV systems have NER?", "family": "Electrical - Distribution & MSB", "subtopic": "High Voltage System / Earthing / Shore Supply", "tid": "KOL-2021-04-3989", "tray": "new", "candidates": [ { "answer_id": "NER-HV-P04-001", "score": 0.5824112296104431, "sibling_score": 0.5824112296104431, "answer_score": 0.4913912534713745, "sibling_qid": "KOL-2022-09-2608-Q001", "sibling_text": "why hv sys using ner", "sibling_family": "", "via": "sibling", "answer_title": "What an NER is, where it is used, and why it is fitted in HV systems", "cross_family": false }, { "answer_id": "ENER-P03-001", "score": 0.5576792359352112, "sibling_score": 0.5576792359352112, "answer_score": null, "sibling_qid": "MUM-2024-09-1458-Q004", "sibling_text": "what is ner why we need it where is it used difference between lv system and hv system earthing system why we don t use ner with lv", "sibling_family": "", "via": "sibling", "answer_title": "Why the LV system is insulated but the HV system is earthed", "cross_family": false }, { "answer_id": "NER-HV-P04-002", "score": 0.5495703220367432, "sibling_score": 0.5495703220367432, "answer_score": null, "sibling_qid": "KOL-2025-08-2847-Q010", "sibling_text": "system for neutral earth for high voltage value of ner in high voltage", "sibling_family": "", "via": "sibling", "answer_title": "How the NER value is selected/calculated, and its construction and material", "cross_family": false } ] }, { "qid": "KOL-2021-04-3989-Q005", "text": "Synchrocope ans Lamp Method not working. what next can be done?", "family": "Electrical - Generator & Alternator", "subtopic": "Synchronization", "tid": "KOL-2021-04-3989", "tray": "new", "candidates": [ { "answer_id": "SYNC-C-002", "score": 0.586126983165741, "sibling_score": 0.586126983165741, "answer_score": 0.4466202825307846, "sibling_qid": "MUM-2022-08-1343-Q001", "sibling_text": "1 sync and dark lamp method is not working how to sync your aux eng", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Synchronising without a synchroscope — lamp, voltmeter and alternative methods", "cross_family": false }, { "answer_id": "SYNC-D-003", "score": 0.5770952701568604, "sibling_score": 0.5770952701568604, "answer_score": null, "sibling_qid": "MUM-2026-06-3425-Q003", "sibling_text": "what is lamps for synchronizing also not working", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Correct paralleling — checks, the synchroscope & phase angle, voltage trim, interlocks", "cross_family": true }, { "answer_id": "GMC-583-B-005", "score": 0.32865067273378373, "sibling_score": null, "answer_score": 0.32865067273378373, "sibling_qid": "", "sibling_text": "proving a meter faulty and getting the reading another way prove the meter wrong with a second instrument before condemning it and prove your test instrument on a known live source first and again afterwards voltmeter suspect read the same two points with a proven multimeter check the voltmeter s own fuses and wiring", "sibling_family": "", "via": "answer_title", "answer_title": "Proving a meter faulty, and getting the reading another way", "cross_family": false } ] }, { "qid": "KOL-2021-04-3989-Q006", "text": "How many contacts in ACB? and their materials.", "family": "Electrical - 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Thermal expansion arrangements for boiler tubes", "cross_family": true } ] }, { "qid": "KOL-2021-05-1590-Q001", "text": "Foaming in boiler", "family": "Boilers - Operations & Firing", "subtopic": "Scum / Blow Down", "tid": "KOL-2021-05-1590", "tray": "review", "candidates": [ { "answer_id": "BBF-621-001", "score": 0.6536526083946228, "sibling_score": 0.6536526083946228, "answer_score": null, "sibling_qid": "MUM-2026-09-3942-Q005", "sibling_text": "boiler blow back", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "What is boiler backfire / blowback? Explain the furnace event, the reasons, and how you prevent it.", "cross_family": false }, { "answer_id": "BFS-257-006", "score": 0.6532109379768372, "sibling_score": 0.6532109379768372, "answer_score": 0.4536043584346771, "sibling_qid": "CHE-2026-02-0483-Q001", "sibling_text": "boiler blow back", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler backfire / blowback / panting — causes, prevention, actions", "cross_family": false }, { "answer_id": "BFM-330-003", "score": 0.6492976546287537, "sibling_score": 0.6492976546287537, "answer_score": null, "sibling_qid": "MUM-2026-09-3957-Q003", "sibling_text": "back fire of boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler vibration, backflow and furnace blowback during firing", "cross_family": false } ] }, { "qid": "KOL-2021-05-1590-Q002", "text": "Piston ring material when piston of chrome", "family": "2-Stroke - Components (Other)", "subtopic": "Piston Rings", "tid": "KOL-2021-05-1590", "tray": "review", "candidates": [ { "answer_id": "PRING-B-003", "score": 0.7948482632637024, "sibling_score": 0.7948482632637024, "answer_score": null, "sibling_qid": "KOL-2025-12-4075-Q006", "sibling_text": "if liner is chrome coated piston ring coating material", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Material, coating & manufacture", "cross_family": false }, { "answer_id": "PRING-CLR-A-001", "score": 0.7225127816200256, "sibling_score": 0.7225127816200256, "answer_score": null, "sibling_qid": "KOC-2026-05-2132-Q004", "sibling_text": "piston drawing materials piston ring material cpr groove", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston-ring types — CPR, POP, the PC ring, and the pinned gap", "cross_family": false }, { "answer_id": "CYL-LINER-P04-006", "score": 0.7135933041572571, "sibling_score": 0.7135933041572571, "answer_score": null, "sibling_qid": "MUM-2022-07-1016-Q008", "sibling_text": "piston piston ring liner material", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Material & manufacturing", "cross_family": false } ] }, { "qid": "KOL-2021-05-1590-Q006", "text": "Ignition delay", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Quality / CCAI", "tid": "KOL-2021-05-1590", "tray": "review", "candidates": [ { "answer_id": "FQCC-583-B-006", "score": 0.7998037338256836, "sibling_score": 0.7998037338256836, "answer_score": 0.630358663201332, "sibling_qid": "CHE-2025-08-0192-Q005", "sibling_text": "ignition delay", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Ignition delay — the gap between injection and combustion, and its reasons", "cross_family": true }, { "answer_id": "INDCARD-C-001", "score": 0.7372889518737793, "sibling_score": 0.7372889518737793, "answer_score": 0.6048319876194, "sibling_qid": "CHE-2026-05-0572-Q006", "sibling_text": "how you will find ignition delay", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Early/late injection, ignition delay & after-burning on the indicator card", "cross_family": true }, { "answer_id": "SAT-578-001", "score": 0.663057804107666, "sibling_score": 0.663057804107666, "answer_score": null, "sibling_qid": "MUM-2025-08-1177-Q005", "sibling_text": "starting air injection timing angle", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "At what crank angle is starting air admitted to a cylinder in a two-stroke main engine?", "cross_family": false } ] }, { "qid": "KOL-2021-05-2446-Q002", "text": "Altenator safeties", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator Protection", "tid": "KOL-2021-05-2446", "tray": "review", "candidates": [ { "answer_id": "ALT-GEN-P01-001", "score": 0.6799303889274597, "sibling_score": 0.6799303889274597, "answer_score": 0.4835800379514694, "sibling_qid": "MUM-2026-05-3046-Q005", "sibling_text": "safeties for alternator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Alternator/generator safeties and protection trips", "cross_family": false }, { "answer_id": "SHAFT-GEN-005", "score": 0.47199577689170835, "sibling_score": null, "answer_score": 0.47199577689170835, "sibling_qid": "", "sibling_text": "safeties provided for a shaft generator standard alternator protections over current short circuit over under voltage over under frequency reverse power paralleled earth fault and preferential load shedding trips sg specific interlocks breaker closes only when synchronised clutch gear engagement interlocks", "sibling_family": "", "via": "answer_title", "answer_title": "Safeties provided for a shaft generator", "cross_family": false }, { "answer_id": "ALT-MAINT-A-001", "score": 0.44046942591667176, "sibling_score": null, "answer_score": 0.44046942591667176, "sibling_qid": "", "sibling_text": "routine maintenance care of a ship s alternator make safe first permit to work isolate rack out and lock off the breaker immobilise the prime mover the set is engine driven a blackout dead bus auto start can crank it prove dead discharge the windings the space heater supply is separate it stays live after the alternator breaker is open isolate it independently before touching the windings", "sibling_family": "", "via": "answer_title", "answer_title": "Routine maintenance & care of a ship’s alternator", "cross_family": false } ] }, { "qid": "KOL-2021-05-3404-Q001", "text": "Check on safety vv", "family": "Boilers - 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Components (Other)", "via": "sibling", "answer_title": "L3 · T044-PART_02-G003High", "cross_family": false }, { "answer_id": "PIST-CSI-B-001", "score": 0.7121710181236267, "sibling_score": 0.7121710181236267, "answer_score": null, "sibling_qid": "KOL-2022-08-1703-Q005", "sibling_text": "coating on piston", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Main-engine piston — construction and the checks expected", "cross_family": false } ] }, { "qid": "KOL-2021-05-3404-Q004", "text": "how to take rudder pintle clearance", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2021-05-3404", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.7514227032661438, "sibling_score": 0.7514227032661438, "answer_score": 0.4902436643838882, "sibling_qid": "KOL-2026-02-3922-Q004", "sibling_text": "tell the procedure for taking rudder pintle clearance", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "RUD-DROP-003", "score": 0.6120195984840393, "sibling_score": 0.6120195984840393, "answer_score": null, "sibling_qid": "CHE-2026-05-0531-Q003", "sibling_text": "rudder drop how to check if clearance more what will u do in sailing", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Rudder drop at the limit: the decision", "cross_family": false }, { "answer_id": "RUD-DROP-002", "score": 0.6017460465431214, "sibling_score": null, "answer_score": 0.6017460465431214, "sibling_qid": "", "sibling_text": "rudder clearances which where and how taken pintle bush clearance at each pintle top bottom f a and p s on long feeler gauges or pintle od vs bush id by caliper top mid bottom the maximum is the clearance renew the bush at the maker class limit carrier bearing wear down the rudder drop poker trammel gauge hull datum to stock mark against the recorded newbuilding reading", "sibling_family": "", "via": "answer_title", "answer_title": "Rudder clearances: which, where and how taken", "cross_family": false } ] }, { "qid": "KOL-2021-05-3405-Q003", "text": "What material piston ring if liner chrome plated", "family": "2-Stroke - Components (Other)", "subtopic": "Piston Rings", "tid": "KOL-2021-05-3405", "tray": "review", "candidates": [ { "answer_id": "PRING-B-003", "score": 0.8434346318244934, "sibling_score": 0.8434346318244934, "answer_score": null, "sibling_qid": "KOL-2025-12-4075-Q006", "sibling_text": "if liner is chrome coated piston ring coating material", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Material, coating & manufacture", "cross_family": false }, { "answer_id": "CYL-LINER-P04-006", "score": 0.7255867123603821, "sibling_score": 0.7255867123603821, "answer_score": null, "sibling_qid": "MUM-2022-07-1016-Q008", "sibling_text": "piston piston ring liner material", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Material & manufacturing", "cross_family": false }, { "answer_id": "CYL-LINER-P02-003", "score": 0.7031388878822327, "sibling_score": 0.7031388878822327, "answer_score": null, "sibling_qid": "KOL-2019-02-3210-Q002", "sibling_text": "how to check liner wear what will be piston ring if liner is chrome plated", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L3 · T044-PART_02-G003High", "cross_family": false } ] }, { "qid": "KOL-2021-05-3406-Q003", "text": "Bolier turn down ratio", "family": "Boilers - Operations & Firing", "subtopic": "Burner Type (Rotary Cup / Pressure Jet)", "tid": "KOL-2021-05-3406", "tray": "review", "candidates": [ { "answer_id": "TDR-584-001", "score": 0.7526402473449707, "sibling_score": 0.7526402473449707, "answer_score": 0.520572167634964, "sibling_qid": "KOC-2025-06-1040-Q002", "sibling_text": "boiler turn down ratio", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "What is the turndown ratio of a marine boiler? 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bursting disc", "cross_family": false }, { "answer_id": "ACRV-004", "score": 0.47501251101493835, "sibling_score": null, "answer_score": 0.47501251101493835, "sibling_qid": "", "sibling_text": "final stage relief valve setting adjustment and safety cut out pressure always set by an authorised competent person to the maker s figure on a calibrated master gauge with the valve on a rig or the stage isolated and depressurised never adjust to mask a fault adjusting screw in raises the lift pressure more spring load out lowers it slacken the lock nut first relock and cap seal after", "sibling_family": "", "via": "answer_title", "answer_title": "Final-stage relief-valve setting/adjustment and safety cut-out pressure", "cross_family": false } ] }, { "qid": "KOL-2021-06-1592-Q007", "text": "VEC Done ■ with class 2 Thank u all ■■", "family": "2-Stroke - Exhaust, Valve & Starting Air", "subtopic": "Exhaust Valve", "tid": "KOL-2021-06-1592", "tray": "new", "candidates": [ { "answer_id": "EXHV-080-BF37-001", "score": 0.5414717793464661, "sibling_score": 0.5414717793464661, "answer_score": null, "sibling_qid": "KOL-2024-12-1960-Q001", "sibling_text": "vec function and closing", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "What is variable exhaust valve closing (VEC)? Components and advantages.", "cross_family": false }, { "answer_id": "DDI-003", "score": 0.5210531949996948, "sibling_score": 0.5210531949996948, "answer_score": null, "sibling_qid": "KOL-2017-01-3021-Q004", "sibling_text": "while flooding in d d what all checks finally done with class 2 sorry for delay thankx everyone n best of luck", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Before flooding the dock, what checks do you carry out — in the engine room, and on the propeller, rudder and stern tube?", "cross_family": true }, { "answer_id": "STAB-SD-C-002", "score": 0.5116178393363953, "sibling_score": 0.5116178393363953, "answer_score": null, "sibling_qid": "MUM-2025-12-0645-Q005", "sibling_text": "static stability and what you will get from it finally passed and coc done with class 2 thank you all for this wonderful channel and your participation i only prepared for previous question from this group nothing else thank you once again", "sibling_family": "", "via": "sibling", "answer_title": "Static stability — what it is and what it quantifies", "cross_family": false } ] }, { "qid": "KOL-2021-06-1594-Q002", "text": "AE sump L.O level increased..reasons?", "family": "Auxiliary Engines", "subtopic": "LO Loss / High Consumption", "tid": "KOL-2021-06-1594", "tray": "new", "candidates": [ { "answer_id": "AE-LOLOSS-002", "score": 0.5035505294799805, "sibling_score": 0.5035505294799805, "answer_score": null, "sibling_qid": "MUM-2023-06-2178-Q001", "sibling_text": "gen lo cons increased after overhaul reasons", "sibling_family": "Auxiliary Engines", "via": "sibling", "answer_title": "Auxiliary generator LO consumption rises after overhaul or decarb — rings and liners apparently good", "cross_family": false }, { "answer_id": "STERN-P03-002", "score": 0.4926386773586273, "sibling_score": 0.4926386773586273, "answer_score": null, "sibling_qid": "CHE-2025-11-0455-Q009", "sibling_text": "fwd seal tk level increasing reason", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Stern-tube seals: arrangement, air/lip seals, renewal/replacement and the vulcanized split-seal fitting method", "cross_family": true }, { "answer_id": "LO-SUMP-002", "score": 0.4909737706184387, "sibling_score": 0.4909737706184387, "answer_score": 0.3310182750225067, "sibling_qid": "MUM-2023-08-1058-Q006", "sibling_text": "me lo sump level going down reasons", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main-engine LO sump level low / dropping — reasons and action", "cross_family": true } ] }, { "qid": "KOL-2021-06-1594-Q003", "text": "Load dependent liner cooling", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "KOL-2021-06-1594", "tray": "review", "candidates": [ { "answer_id": "CYL-LINER-P01-001", "score": 0.688209593296051, "sibling_score": 0.688209593296051, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001S4", "sibling_text": "liner cooling liner calibration", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Carrying out main-engine liner calibration (gauging)", "cross_family": false }, { "answer_id": "CYL-LINER-P04-001", "score": 0.622020959854126, "sibling_score": 0.622020959854126, "answer_score": null, "sibling_qid": "MUM-2021-02-1009-Q004", "sibling_text": "temperatures across liner length", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Temperature variation along the liner length", "cross_family": false }, { "answer_id": "CYL-LINER-P04-007", "score": 0.5730330944061279, "sibling_score": 0.5730330944061279, "answer_score": 0.45038441121578215, "sibling_qid": "MUM-2025-11-2866-Q010", "sibling_text": "latest developments in cyl liner he wants to here insulated mid section for reduce cooling effect to prevent moisture", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Latest developments — cold-corrosion control & the “insulated” liner", "cross_family": false } ] }, { "qid": "KOL-2021-06-1594-Q006", "text": "Rudder locking", "family": "Steering Gear & Hydraulics", "subtopic": "Tiller / Rudder Stock", "tid": "KOL-2021-06-1594", "tray": "new", "candidates": [ { "answer_id": "STEER-055-A-004", "score": 0.6494144797325134, "sibling_score": 0.6494144797325134, "answer_score": null, "sibling_qid": "MUM-2026-07-3762-Q009", "sibling_text": "rudder locking", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Hydraulic faults — air, sluggish response, locking, leakage", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.5429156422615051, "sibling_score": 0.5429156422615051, "answer_score": null, "sibling_qid": "MUM-2026-06-3564-Q005", "sibling_text": "checks in dd on rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "TRS-002", "score": 0.5182495713233948, "sibling_score": 0.5182495713233948, "answer_score": null, "sibling_qid": "MUM-2024-12-1098-Q005", "sibling_text": "how coupling for rudder is done", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false } ] }, { "qid": "KOL-2021-06-1595-Q007", "text": "bumping clearance and how to adjust", "family": "Air Compressor", "subtopic": "Reciprocating Compressor", "tid": "KOL-2021-06-1595", "tray": "review", "candidates": [ { "answer_id": "RUN-CLR-002", "score": 0.7064346671104431, "sibling_score": 0.7064346671104431, "answer_score": 0.4539753198623657, "sibling_qid": "MUM-2026-06-3501-Q002", "sibling_text": "bumping clearance how to adjust", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Bumping clearance — what it is, why it matters, effects, and how it is adjusted", "cross_family": false }, { "answer_id": "AC-VE-005", "score": 0.6211437582969666, "sibling_score": 0.6211437582969666, "answer_score": 0.4687359571456909, "sibling_qid": "CHE-2026-02-0334-Q005S4", "sibling_text": "bumping clearance importance", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "If bumping clearance is more or less, what happens, and how do you reduce or adjust it?", "cross_family": false }, { "answer_id": "AC-VE-001", "score": 0.6060566306114197, "sibling_score": 0.6060566306114197, "answer_score": null, "sibling_qid": "KOL-2024-07-1947-Q010", "sibling_text": "define volumetric efficiency if drop what you do 3 methods to adjust bumping clearance", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Volumetric efficiency: define it, and if it drops how do you improve it (with bumping clearance)?", "cross_family": false } ] }, { "qid": "KOL-2021-06-1595-Q008", "text": "foaming in boiler reasons and remedies", "family": "Boilers - Operations & Firing", "subtopic": "Scum / Blow Down", "tid": "KOL-2021-06-1595", "tray": "review", "candidates": [ { "answer_id": "BLR-BSP-003", "score": 0.6661977767944336, "sibling_score": 0.6661977767944336, "answer_score": null, "sibling_qid": "MUM-2026-07-3705-Q005", "sibling_text": "boiler firing heavy black smoke and o2 increased to 9 reasons and remedies", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Black smoke with a high O2 reading: how can both be true?", "cross_family": false }, { "answer_id": "BLR-BSP-001", "score": 0.6564756035804749, "sibling_score": 0.6564756035804749, "answer_score": null, "sibling_qid": "MUM-2025-08-2352-Q001", "sibling_text": "3e firing boiler and he finds boiler tripping off with too much panting boiler is cathing fire but it it putting off again as a 2e actions taken by you and rectifying of all the possible defects", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler panting (combustion pulsation): causes, symptoms, and your actions as 2/E", "cross_family": false }, { "answer_id": "BBF-621-001", "score": 0.6548783183097839, "sibling_score": 0.6548783183097839, "answer_score": null, "sibling_qid": "MUM-2026-09-3936-Q006", "sibling_text": "boiler blow back reason", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "What is boiler backfire / blowback? Explain the furnace event, the reasons, and how you prevent it.", "cross_family": false } ] }, { "qid": "KOL-2021-06-3409-Q004", "text": "Foaming of boiler.", "family": "Boilers - Operations & Firing", "subtopic": "Scum / Blow Down", "tid": "KOL-2021-06-3409", "tray": "review", "candidates": [ { "answer_id": "BBF-621-001", "score": 0.6666441559791565, "sibling_score": 0.6666441559791565, "answer_score": null, "sibling_qid": "MUM-2026-09-3942-Q005", "sibling_text": "boiler blow back", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "What is boiler backfire / blowback? Explain the furnace event, the reasons, and how you prevent it.", "cross_family": false }, { "answer_id": "BFS-257-006", "score": 0.6662386059761047, "sibling_score": 0.6662386059761047, "answer_score": 0.4679682970046997, "sibling_qid": "CHE-2026-02-0483-Q001", "sibling_text": "boiler blow back", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler backfire / blowback / panting — causes, prevention, actions", "cross_family": false }, { "answer_id": "BFM-330-003", "score": 0.6619985699653625, "sibling_score": 0.6619985699653625, "answer_score": null, "sibling_qid": "MUM-2026-09-3957-Q003", "sibling_text": "back fire of boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler vibration, backflow and furnace blowback during firing", "cross_family": false } ] }, { "qid": "KOL-2021-07-0510-Q001", "text": "About classification society and certificates issued by classification society", "family": "Surveys - Statutory", "subtopic": "PSC / Flag / RO / CIC / MoU", "tid": "KOL-2021-07-0510", "tray": "review", "candidates": [ { "answer_id": "CERT-LIST-P01-001", "score": 0.7869132161140442, "sibling_score": 0.7869132161140442, "answer_score": null, "sibling_qid": "KOL-2023-05-2653-Q004", "sibling_text": "classsifiation sociaty certificate", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "List the statutory certificates carried onboard a ship.", "cross_family": false }, { "answer_id": "IACS-324-005", "score": 0.7682046294212341, "sibling_score": 0.7682046294212341, "answer_score": 0.5540206074714661, "sibling_qid": "KOL-2021-12-0583-Q006", "sibling_text": "statutory certificate definition ro classification society difference", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "5. What is the difference between a classification society, a Recognized Organization, and statutory certification?", "cross_family": false }, { "answer_id": "CERT-LIST-P02-005", "score": 0.6965722441673279, "sibling_score": 0.6965722441673279, "answer_score": 0.5665174782276153, "sibling_qid": "KOL-2026-09-4306-Q003", "sibling_text": "certificates by class", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Class certificate / classification certificate", "cross_family": false } ] }, { "qid": "KOL-2021-07-0511-Q002", "text": "Ship u sailed", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2021-07-0511", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.7435095310211182, "sibling_score": 0.7435095310211182, "answer_score": null, "sibling_qid": "MUM-2026-04-1320-Q002", "sibling_text": "ship sailed on", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.6625271439552307, "sibling_score": 0.6625271439552307, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.38730364143848417, "sibling_score": null, "answer_score": 0.38730364143848417, "sibling_qid": "", "sibling_text": "type a and type b ships how form and cargo set the freeboard", "sibling_family": "", "via": "answer_title", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "KOL-2021-07-0512-Q004", "text": "What is standard discharge connection.\tWhat you mean by", "family": "SOLAS - Fire Safety", "subtopic": "International Shore Connection", "tid": "KOL-2021-07-0512", "tray": "review", "candidates": [ { "answer_id": "SEW-DISCH-007", "score": 0.7224133014678955, "sibling_score": 0.7224133014678955, "answer_score": 0.41960905194282533, "sibling_qid": "MUM-2026-08-3853-Q007", "sibling_text": "standard discharge connection", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "7. Standard discharge connection (Regulation 10)", "cross_family": true }, { "answer_id": "ISC-329-004", "score": 0.6548261642456055, "sibling_score": 0.6548261642456055, "answer_score": 0.43233776092529297, "sibling_qid": "KOL-2023-10-0783-Q004", "sibling_text": "standard discharge connection international shore coupling difference", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "What is the difference between the SOLAS international shore connection and the MARPOL standard discharge connection?", "cross_family": false }, { "answer_id": "LPG-LNG-004", "score": 0.4668111205101013, "sibling_score": 0.4668111205101013, "answer_score": null, "sibling_qid": "KOC-2024-05-1840-Q007", "sibling_text": "lng cargo pump type and discharging procedure disconnection procedure after discharge level 2 esd int no questions", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Loading / discharging, tank pressure, pump and disconnection", "cross_family": true } ] }, { "qid": "KOL-2021-07-0516-Q004", "text": "what is clear ground", "family": "Surveys - Statutory", "subtopic": "Detention / Clear Ground", "tid": "KOL-2021-07-0516", "tray": "review", "candidates": [ { "answer_id": "DCG-001", "score": 0.7021034359931946, "sibling_score": 0.7021034359931946, "answer_score": 0.28191834837198254, "sibling_qid": "KOL-2026-05-4095-Q005", "sibling_text": "what is clear ground", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is meant by \"clear grounds\", under PSC and under SOLAS? Give examples and state the conditions.", "cross_family": false }, { "answer_id": "DCG-003", "score": 0.6570493578910828, "sibling_score": 0.6570493578910828, "answer_score": null, "sibling_qid": "KOL-2023-09-0767-Q005", "sibling_text": "clear ground give any example of clear ground code", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the PSC deficiency code, which code leads to a detainable deficiency, and can you give an example of a \"clear-ground code\"?", "cross_family": false }, { "answer_id": "CXH-BRG-FINAL-1-006", "score": 0.2559238165616989, "sibling_score": null, "answer_score": 0.2559238165616989, "sibling_qid": "", "sibling_text": "crosshead guide shoe clearances how where how much piston position why clearances crosshead bearing clearance plus guide shoe clearance both sides running and thrust bearing clearance position is maker specified the aim is to put the running gear in the condition that opens the clearance at the measuring point for that design", "sibling_family": "", "via": "answer_title", "answer_title": "Crosshead & guide-shoe clearances: how, where, how much, piston position & why", "cross_family": false } ] }, { "qid": "KOL-2021-07-0516-Q005", "text": "ism features", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOL-2021-07-0516", "tray": "new", "candidates": [ { "answer_id": "ISM-AUD-P02-003", "score": 0.5735549926757812, "sibling_score": 0.5735549926757812, "answer_score": 0.2762727379798889, "sibling_qid": "MUM-2026-09-3991-Q005", "sibling_text": "functional requirements of ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "The six functional requirements of the ISM Code (clause 1.4)", "cross_family": false }, { "answer_id": "ISM-ELEM-002", "score": 0.5727140307426453, "sibling_score": 0.5727140307426453, "answer_score": null, "sibling_qid": "MUM-2026-02-0790-Q002", "sibling_text": "ism full details", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the ISM Code?", "cross_family": false }, { "answer_id": "ISM-AUD-P02-002", "score": 0.5519546866416931, "sibling_score": 0.5519546866416931, "answer_score": null, "sibling_qid": "MUM-2025-10-0519-Q004", "sibling_text": "what is ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM Code — what it is, purpose, objectives and structure", "cross_family": false } ] }, { "qid": "KOL-2021-07-0517-Q004", "text": "Fog horn", "family": "Auxiliary Equipment", "subtopic": "air horn", "tid": "KOL-2021-07-0517", "tray": "new", "candidates": [ { "answer_id": "HKC-IHM-A-001", "score": 0.5729421377182007, "sibling_score": 0.5729421377182007, "answer_score": null, "sibling_qid": "KOC-2024-12-0485-Q013", "sibling_text": "honking convention", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Hong Kong Convention — what it is and what it requires", "cross_family": true }, { "answer_id": "FIRE-P02-02", "score": 0.5239055752754211, "sibling_score": 0.5239055752754211, "answer_score": null, "sibling_qid": "CHE-2026-02-0117-Q006", "sibling_text": "hi fog operational check", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist — routine testing, alarms and 2/E maintenance", "cross_family": true }, { "answer_id": "VENT-HD-003", "score": 0.5031923651695251, "sibling_score": 0.5031923651695251, "answer_score": null, "sibling_qid": "KOC-2024-01-0282-Q006", "sibling_text": "f o tank air vent diagram", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Fuel-oil / diesel-oil / bunker tank vent arrangements — draw and explain", "cross_family": false } ] }, { "qid": "KOL-2021-07-0518-Q004", "text": "Bulbous bow function", "family": "", "subtopic": "Bulbous Bow", "tid": "KOL-2021-07-0518", "tray": "new", "candidates": [ { "answer_id": "PPS-230-006", "score": 0.5138833522796631, "sibling_score": 0.5138833522796631, "answer_score": 0.31180508732795714, "sibling_qid": "MUM-2026-02-0782-Q011", "sibling_text": "bulbous bow how it is connected to ship shape of bow", "sibling_family": "", "via": "sibling", "answer_title": "Fore-end / fore-peak structure: draw and describe", "cross_family": false }, { "answer_id": "DRG-B-009", "score": 0.4368968605995178, "sibling_score": 0.4368968605995178, "answer_score": null, "sibling_qid": "KOL-2020-09-0422-Q008", "sibling_text": "bowsing tackle", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Bowsing tackle and tricing pendant", "cross_family": false }, { "answer_id": "STAB-GZ-P04-004", "score": 0.4192385673522949, "sibling_score": 0.4192385673522949, "answer_score": null, "sibling_qid": "KOC-2024-01-0293-Q006", "sibling_text": "gz curve increased beam", "sibling_family": "", "via": "sibling", "answer_title": "Beam, freeboard, GM and the wall-sided curve", "cross_family": false } ] }, { "qid": "KOL-2021-07-0519-Q004", "text": "types of team to tackle emergency.i said all four.xque- what are the duties of emergency team- I said they will execute to tackle emergency.he said this is done by all teams.what specific they do. Internal.-1.annex 6 harmful substances.", "family": "ISM Code", "subtopic": "SMS / Functional Requirements", "tid": "KOL-2021-07-0519", "tray": "new", "candidates": [ { "answer_id": "ISM-ELEM-005", "score": 0.6050528287887573, "sibling_score": 0.6050528287887573, "answer_score": 0.4818616688251495, "sibling_qid": "KOL-2026-01-1154-Q006", "sibling_text": "emergency preparedness under ism code", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Emergency preparedness (Element 8)", "cross_family": false }, { "answer_id": "SMSFR-002", "score": 0.5877353549003601, "sibling_score": 0.5877353549003601, "answer_score": null, "sibling_qid": "KOL-2019-12-0373-Q002", "sibling_text": "i e sms manual nd its contents 4 emergency preparedness under sms manual 5 hru in liferaft chakraborty func 3", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the Safety Management System — the SMS manual, its contents, objectives, why it is needed onboard, and the company SMS policy?", "cross_family": false }, { "answer_id": "FFF-A-002", "score": 0.570401132106781, "sibling_score": 0.570401132106781, "answer_score": null, "sibling_qid": "MUM-2026-07-3749-Q005", "sibling_text": "firefighting in er", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Fixed firefighting in the engine room and machinery spaces", "cross_family": true } ] }, { "qid": "KOL-2021-07-0521-Q002", "text": "What is safety equipment survey, I told many things he told me just go and be a politician in your state you will do good.", "family": "Surveys - Statutory", "subtopic": "Safety Equipment Survey", "tid": "KOL-2021-07-0521", "tray": "new", "candidates": [ { "answer_id": "SEQ-330-001", "score": 0.5821747183799744, "sibling_score": 0.5821747183799744, "answer_score": 0.34499602764844894, "sibling_qid": "KOL-2019-11-0350-Q002", "sibling_text": "safety equipment survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Safety Equipment survey — what it is, its scope, and what is checked", "cross_family": false }, { "answer_id": "SEQ-330-002", "score": 0.5051587820053101, "sibling_score": 0.5051587820053101, "answer_score": 0.31952328383922574, "sibling_qid": "MUM-2024-03-0167-Q003", "sibling_text": "safety survey preparation", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Preparing the ship for the Safety Equipment survey as Second Engineer", "cross_family": false }, { "answer_id": "CERT-LIST-P03-003", "score": 0.4939858019351959, "sibling_score": 0.4939858019351959, "answer_score": null, "sibling_qid": "KOC-2021-07-0014-Q002", "sibling_text": "documents required for safety equipment survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Cargo Ship Safety Equipment Certificate & Form E", "cross_family": false } ] }, { "qid": "KOL-2021-07-0521-Q004", "text": "? After hearing my answer saying your speak too much Mahabharata. Mitra sir 3 What is class certificate and conditions of class.", "family": "Surveys - Statutory", "subtopic": "Condition of Class", "tid": "KOL-2021-07-0521", "tray": "review", "candidates": [ { "answer_id": "COC-001", "score": 0.6615933775901794, "sibling_score": 0.6615933775901794, "answer_score": null, "sibling_qid": "MUM-2025-03-2273-Q006", "sibling_text": "class certificate vs condition of class", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is a Condition of Class? Give examples, say where it is found, how much time is given to rectify it, and what happens if it is not met in time.", "cross_family": false }, { "answer_id": "CERT-LIST-P02-005", "score": 0.6613724231719971, "sibling_score": 0.6613724231719971, "answer_score": 0.43523062169551846, "sibling_qid": "MUM-2026-05-3187-Q002S2", "sibling_text": "what is that why class certificate", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Class certificate / classification certificate", "cross_family": false }, { "answer_id": "CERT-LIST-P01-001", "score": 0.6339343190193176, "sibling_score": 0.6339343190193176, "answer_score": null, "sibling_qid": "KOL-2026-08-4162-Q004", "sibling_text": "what are the certificates issued by the class", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "List the statutory certificates carried onboard a ship.", "cross_family": false } ] }, { "qid": "KOL-2021-07-0523-Q004", "text": "How will you implement MLC 2006 On board?", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOL-2021-07-0523", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-007", "score": 0.4254900813102722, "sibling_score": 0.4254900813102722, "answer_score": null, "sibling_qid": "MUM-2026-02-0734-Q007", "sibling_text": "mlc 2006 detainable deficiency", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false }, { "answer_id": "DUS-P1-03", "score": 0.4246845245361328, "sibling_score": 0.4246845245361328, "answer_score": null, "sibling_qid": "KOL-2023-04-0735-Q004", "sibling_text": "docking plan 5 mlc 2006", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Docking plan — content, purpose and how the 2E uses it", "cross_family": true }, { "answer_id": "MLC-WRH-B-005", "score": 0.35845017433166504, "sibling_score": 0.35845017433166504, "answer_score": null, "sibling_qid": "KOL-2021-01-0461-Q004", "sibling_text": "mlc 2006 and how will you manage rest hours of crew member during swez canal transit", "sibling_family": "MLC", "via": "sibling", "answer_title": "Repeated rest-hour violations — your action as Second Engineer, and who may permit the work", "cross_family": false } ] }, { "qid": "KOL-2021-07-0526-Q001", "text": "1:- type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2021-07-0526", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.7506031394004822, "sibling_score": 0.7506031394004822, "answer_score": null, "sibling_qid": "MUM-2026-03-0813-Q001", "sibling_text": "type of ship why only one function", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7493822574615479, "sibling_score": 0.7493822574615479, "answer_score": 0.4705863565206528, "sibling_qid": "CHE-2026-05-0614-Q001", "sibling_text": "start from type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.7345511317253113, "sibling_score": 0.7345511317253113, "answer_score": 0.4755332350730896, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "KOL-2021-07-0526-Q008", "text": "6:- tubular freeboard and is factor- what if Cb increases", "family": "Load Line Convention", "subtopic": "Load Line Convention", "tid": "KOL-2021-07-0526", "tray": "new", "candidates": [ { "answer_id": "LL-CONV-P06-001", "score": 0.5186135768890381, "sibling_score": 0.5186135768890381, "answer_score": null, "sibling_qid": "CHE-2025-08-0024-Q012", "sibling_text": "what happens when freeboard is less in bulk", "sibling_family": "", "via": "sibling", "answer_title": "LLC-P06-01 - Ship categories and freeboard differences: Type A, Type B and practical ship cases", "cross_family": false }, { "answer_id": "LL-CONV-P04-001", "score": 0.5161170363426208, "sibling_score": 0.5161170363426208, "answer_score": 0.3931228011846542, "sibling_qid": "KOL-2022-09-0685-Q001", "sibling_text": "condition of assignment tubalar freeboard if hatch cover change from wooden to steel what will be the effect on freeboard", "sibling_family": "", "via": "sibling", "answer_title": "Conditions of assignment of freeboard: purpose, checks and effect on freeboard", "cross_family": false }, { "answer_id": "LLST-AB-003", "score": 0.5111377239227295, "sibling_score": 0.5111377239227295, "answer_score": null, "sibling_qid": "KOL-2020-02-0396-Q002", "sibling_text": "freeboard why more in bulk", "sibling_family": "", "via": "sibling", "answer_title": "Why tankers carry less freeboard than bulk carriers and other dry-cargo ships", "cross_family": false } ] }, { "qid": "KOL-2021-07-0526-Q009", "text": "What if L/d decreases", "family": "Load Line Convention", "subtopic": "Load Line Convention", "tid": "KOL-2021-07-0526", "tray": "new", "candidates": [ { "answer_id": "PF-B-001", "score": 0.40964052081108093, "sibling_score": 0.40964052081108093, "answer_score": null, "sibling_qid": "KOL-2016-11-2090-Q005", "sibling_text": "if pf decreases from 0 8 to 0 4 what will happen", "sibling_family": "Electrical - 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Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "KOL-2021-07-1602-Q006", "text": "Differential pressure gauge working", "family": "Gauges & Tools", "subtopic": "Pressure Gauge Calibration", "tid": "KOL-2021-07-1602", "tray": "review", "candidates": [ { "answer_id": "DP-TX-001", "score": 0.7658044099807739, "sibling_score": 0.7658044099807739, "answer_score": 0.5907075881958007, "sibling_qid": "KOL-2020-06-3981-Q003", "sibling_text": "differential pressure gauge how it works", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "DP cell / DP transmitter — working principle, construction and signal", "cross_family": true }, { "answer_id": "TPL-SENS-A-001", "score": 0.6759210824966431, "sibling_score": 0.6759210824966431, "answer_score": 0.5853547394275666, "sibling_qid": "KOL-2019-09-2324-Q003", "sibling_text": "how does differential pressure transmitter work", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Differential pressure cell / DP transmitter working and use", "cross_family": true }, { "answer_id": "LWL-005", "score": 0.639783501625061, "sibling_score": 0.639783501625061, "answer_score": null, "sibling_qid": "KOC-2026-04-1127-Q003", "sibling_text": "differential pressure transmitter working and how to test drum low level alarm", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "How do you test the boiler low-water alarm and the low-low level trip? How do you test high level, and why is there a time delay in the alarm?", "cross_family": true } ] }, { "qid": "KOL-2021-07-1603-Q003", "text": "Bourdon tube differential pressure gauge", "family": "Gauges & Tools", "subtopic": "Pressure Gauge Calibration", "tid": "KOL-2021-07-1603", "tray": "review", "candidates": [ { "answer_id": "DP-TX-001", "score": 0.7119958400726318, "sibling_score": 0.7119958400726318, "answer_score": 0.5316451281309128, "sibling_qid": "KOL-2020-06-3981-Q003", "sibling_text": "differential pressure gauge how it works", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "DP cell / DP transmitter — working principle, construction and signal", "cross_family": true }, { "answer_id": "TPL-SENS-A-001", "score": 0.6405316591262817, "sibling_score": 0.6405316591262817, "answer_score": 0.5538921743631363, "sibling_qid": "KOL-2019-09-2324-Q003", "sibling_text": "how does differential pressure transmitter work", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Differential pressure cell / DP transmitter working and use", "cross_family": true }, { "answer_id": "TPL-SENS-A-002", "score": 0.6319088935852051, "sibling_score": 0.6319088935852051, "answer_score": 0.47188978791236874, "sibling_qid": "MUM-2026-05-3165-Q005", "sibling_text": "how to calibrate pressure gauge", "sibling_family": "Gauges & Tools", "via": "sibling", "answer_title": "Pressure transmitter / transducer / switch working and calibration", "cross_family": false } ] }, { "qid": "KOL-2021-07-1604-Q002", "text": "Main engine specification", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOL-2021-07-1604", "tray": "review", "candidates": [ { "answer_id": "ENG-NOM-006", "score": 0.7966569662094116, "sibling_score": 0.7966569662094116, "answer_score": null, "sibling_qid": "CHE-2026-05-0585-Q001", "sibling_text": "main engine specification complete", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Short-form asks: SMC-C, LMC, and ME vs MC quickly", "cross_family": false }, { "answer_id": "ALT-MTN-B-001", "score": 0.686126708984375, "sibling_score": 0.686126708984375, "answer_score": null, "sibling_qid": "MUM-2026-02-1281-Q001", "sibling_text": "main engine specification mc c", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Routine onboard alternator maintenance checks", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.6701682806015015, "sibling_score": 0.6701682806015015, "answer_score": null, "sibling_qid": "CHE-2026-08-3865-Q007", "sibling_text": "main engine specifications", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "KOL-2021-07-1604-Q006", "text": "Why plate type valves used in air compressor.", "family": "Air Compressor", "subtopic": "Reciprocating Compressor", "tid": "KOL-2021-07-1604", "tray": "new", "candidates": [ { "answer_id": "MAC-598-001", "score": 0.603493869304657, "sibling_score": 0.603493869304657, "answer_score": 0.49528011679649353, "sibling_qid": "MUM-2025-09-2429-Q005S2", "sibling_text": "decider ques the compressor valve has so many parts why the construction of valve is so complex", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "The main air compressor valve — arrangement, parts, and why the construction is so complex", "cross_family": false }, { "answer_id": "ACSS-003", "score": 0.5826351642608643, "sibling_score": 0.5826351642608643, "answer_score": null, "sibling_qid": "KOC-2025-11-1970-Q001", "sibling_text": "main air compressor working advntages of multistages what all are the safeties provided on compressor reasons for lifting of safety valves", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Multistage working, cooling, stage arrangement and stage faults", "cross_family": false }, { "answer_id": "MAC-353-003", "score": 0.5682530999183655, "sibling_score": 0.5682530999183655, "answer_score": 0.4572332143783569, "sibling_qid": "KOC-2025-04-1910-Q010", "sibling_text": "what all jobs done on compressor how many discs in compressor suction valve draw a suction valve", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Main air compressor suction / delivery valve inspection and overhaul", "cross_family": false } ] }, { "qid": "KOL-2021-07-1604-Q007", "text": "Reason for valve breakage in air compressor.", "family": "Air Compressor", "subtopic": "Reciprocating Compressor", "tid": "KOL-2021-07-1604", "tray": "review", "candidates": [ { "answer_id": "ACRV-001", "score": 0.6792070865631104, "sibling_score": 0.6792070865631104, "answer_score": null, "sibling_qid": "CHE-2026-03-0486-Q002", "sibling_text": "air compressor relief valve leaking reasons", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "First-stage relief valve lifting or leaking — reasons and checks", "cross_family": false }, { "answer_id": "ICAC-299-008", "score": 0.6694309711456299, "sibling_score": 0.6694309711456299, "answer_score": null, "sibling_qid": "KOL-2026-04-3953-Q004", "sibling_text": "air compressor intercooler bursting disc ruptured reasons", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Bursting disc gives way: running the compressor safely", "cross_family": false }, { "answer_id": "AC-STAGE-003", "score": 0.6672239899635315, "sibling_score": 0.6672239899635315, "answer_score": null, "sibling_qid": "MUM-2026-08-3861-Q010", "sibling_text": "air compressor 2nd stage delivery valve leaking what will happen", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Effects of 1st / 2nd stage suction or discharge valve leakage", "cross_family": false } ] }, { "qid": "KOL-2021-07-1605-Q006", "text": "improved high lift safety valve dismantling, overhauling, checks, how to adjust lifitng pressure, how to check truenss", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2021-07-1605", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.7699314951896667, "sibling_score": 0.7699314951896667, "answer_score": null, "sibling_qid": "KOC-2026-02-1106-Q007", "sibling_text": "improved high lift safety valve overhaul and checks", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-002", "score": 0.7102592587471008, "sibling_score": 0.7102592587471008, "answer_score": null, "sibling_qid": "KOL-2026-02-3922-Q005", "sibling_text": "what is lifting of safety valve tell only within 3 percent of designated set pressure nothing else", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Acceptance limits and durations — the accumulation limit, the maximum test periods, and the action if the limit is exceeded", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.7086436152458191, "sibling_score": 0.7086436152458191, "answer_score": null, "sibling_qid": "KOL-2026-01-3900-Q005", "sibling_text": "check on safety valve during overhaul", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false } ] }, { "qid": "KOL-2021-07-1606-Q001", "text": "WORKED ON WHICH TYPE ENGINES", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOL-2021-07-1606", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.7688666582107544, "sibling_score": 0.7688666582107544, "answer_score": null, "sibling_qid": "MUM-2026-06-3492-Q002", "sibling_text": "which type of engines worked on", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "MCC-MEB-P01-001", "score": 0.7293475270271301, "sibling_score": 0.7293475270271301, "answer_score": null, "sibling_qid": "MUM-2026-09-3997-Q002", "sibling_text": "type of engine worked me mcc me b and rta", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "MC-C (\"Compact\") engine — design and the main constructional differences from MC", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.6953127980232239, "sibling_score": 0.6953127980232239, "answer_score": null, "sibling_qid": "CHE-2026-04-0506-Q003", "sibling_text": "types of engine you worked specifications of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false } ] }, { "qid": "KOL-2021-07-1606-Q004", "text": "BOILER SAFETY VALVE DETAILS", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2021-07-1606", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.8070806860923767, "sibling_score": 0.8070806860923767, "answer_score": null, "sibling_qid": "KOC-2026-05-0034-Q010", "sibling_text": "boiler safety valve types and how safety valve is set complete procedures", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.7994095683097839, "sibling_score": 0.7994095683097839, "answer_score": null, "sibling_qid": "CHE-2026-04-0500-Q005", "sibling_text": "boiler safety valve setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "ACRV-005", "score": 0.7883488535881042, "sibling_score": 0.7883488535881042, "answer_score": null, "sibling_qid": "MUM-2026-06-3549-Q005", "sibling_text": "boiler safety valve maximum questions", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": false } ] }, { "qid": "KOL-2021-07-1607-Q002", "text": "bed plate distortion reasons?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Bedplate / A-Frame", "tid": "KOL-2021-07-1607", "tray": "new", "candidates": [ { "answer_id": "FWFB-P02-007", "score": 0.5620392560958862, "sibling_score": 0.5620392560958862, "answer_score": null, "sibling_qid": "MUM-2026-03-2952-Q007", "sibling_text": "what type of bedplate", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Transverse and longitudinal girders: arrangement and purpose", "cross_family": false }, { "answer_id": "OWS-15PPM-004", "score": 0.543589174747467, "sibling_score": 0.543589174747467, "answer_score": null, "sibling_qid": "CHE-2025-12-0235-Q004", "sibling_text": "ows plate too much deep in it", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": true }, { "answer_id": "CHK-330-004", "score": 0.5093950629234314, "sibling_score": 0.5093950629234314, "answer_score": null, "sibling_qid": "MUM-2026-03-1306-Q014S4", "sibling_text": "bed plate parts choking arrangement alignment of shaft intermediate shaft take out procedure", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Chocking arrangement on the main engine bedplate seating", "cross_family": false } ] }, { "qid": "KOL-2021-07-1837-Q002", "text": "Start by Choudhury type of engine u sailed specification and type of ship.", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "KOL-2021-07-1837", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.7645156979560852, "sibling_score": 0.7645156979560852, "answer_score": null, "sibling_qid": "CHE-2026-04-0373-Q001S6", "sibling_text": "type of ship specification of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.7478767037391663, "sibling_score": 0.7478767037391663, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q001", "sibling_text": "type of ship sailed and engines details", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "AC-VE-001", "score": 0.705143392086029, "sibling_score": 0.705143392086029, "answer_score": null, "sibling_qid": "MUM-2026-01-2904-Q001", "sibling_text": "what type of ship engine power and nomenclature", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Volumetric efficiency: define it, and if it drops how do you improve it (with bumping clearance)?", "cross_family": false } ] }, { "qid": "KOL-2021-07-1837-Q003", "text": "what is the purpose of vaccum condenser .how efficiency increased .", "family": "Heat Exchangers & Coolers", "subtopic": "Vacuum Distillation", "tid": "KOL-2021-07-1837", "tray": "new", "candidates": [ { "answer_id": "COPT-BF043-004", "score": 0.5821758508682251, "sibling_score": 0.5821758508682251, "answer_score": 0.48516333699226377, "sibling_qid": "KOC-2021-08-2024-Q009", "sibling_text": "y vaccum is necessary in copt plant extract more work by reducing the condensing temperature he want to here it will increase the temperature diff by keeping vacuum", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "4. Why vacuum is necessary, and signs of falling vacuum", "cross_family": true }, { "answer_id": "STHX-007", "score": 0.5527629852294922, "sibling_score": 0.5527629852294922, "answer_score": null, "sibling_qid": "KOL-2016-05-2988-Q003", "sibling_text": "after cleaning condenser efficiency not increasing also reason", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "STHX-07 — Performance, efficiency, choking and poor heat transfer", "cross_family": false }, { "answer_id": "VAC-COND-001", "score": 0.5452353954315186, "sibling_score": 0.5452353954315186, "answer_score": 0.538150429725647, "sibling_qid": "MUM-2026-02-1276-Q005", "sibling_text": "significance of vacuum condenser", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Purpose, working and thermodynamic principle of the vacuum condenser", "cross_family": true } ] }, { "qid": "KOL-2021-07-1837-Q006", "text": "starting air valve testing after overhaul", "family": "2-Stroke - Reversing & Maneuvering", "subtopic": "Air Distributor", "tid": "KOL-2021-07-1837", "tray": "review", "candidates": [ { "answer_id": "SAV-004", "score": 0.7367261052131653, "sibling_score": 0.7367261052131653, "answer_score": 0.6295395284891129, "sibling_qid": "CHE-2026-02-0482-Q003", "sibling_text": "starting air valve in place testing procedure", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Overhaul, assembly and testing of the starting air valve", "cross_family": true }, { "answer_id": "EXV-P02-001", "score": 0.7047743201255798, "sibling_score": 0.7047743201255798, "answer_score": null, "sibling_qid": "KOL-2026-04-3944-Q007", "sibling_text": "test on overhauled exhaust valve wants to hear give air supply one time and check for dropping of valve", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve overhaul & dismantling — procedure and precautions", "cross_family": true }, { "answer_id": "SAV-003", "score": 0.7009599804878235, "sibling_score": 0.7009599804878235, "answer_score": null, "sibling_qid": "MUM-2026-03-2645-Q001", "sibling_text": "starting air line hot what to do and how to check air valve is working correctly after overhaul", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Action when a unit starting air valve leaks or the line goes red hot in manoeuvring", "cross_family": true } ] }, { "qid": "KOL-2021-07-1837-Q008", "text": "who make rules for classification society", "family": "Surveys - Statutory", "subtopic": "PSC / Flag / RO / CIC / MoU", "tid": "KOL-2021-07-1837", "tray": "new", "candidates": [ { "answer_id": "IACS-324-002", "score": 0.6175325512886047, "sibling_score": 0.6175325512886047, "answer_score": 0.4247363194823265, "sibling_qid": "CHE-2025-10-0065-Q006", "sibling_text": "what is classification society it s functions", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "2. What is a classification society, why does a ship need class, and what are its functions?", "cross_family": false }, { "answer_id": "CSAS-SURV-001", "score": 0.6071563363075256, "sibling_score": 0.6071563363075256, "answer_score": null, "sibling_qid": "MUM-2023-03-0088-Q008", "sibling_text": "classification society", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Certificate of class — what it is, who issues it, what class looks after", "cross_family": true }, { "answer_id": "PSC-SURV-P01-003", "score": 0.5698300004005432, "sibling_score": 0.5698300004005432, "answer_score": 0.41051071882247925, "sibling_qid": "KOL-2025-09-1058-Q007", "sibling_text": "difference between classification society and ro", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the difference between a Recognised Organisation (RO) and a classification society?", "cross_family": false } ] }, { "qid": "KOL-2021-07-1904-Q002", "text": "1 Me specification", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOL-2021-07-1904", "tray": "new", "candidates": [ { "answer_id": "AEME-DIFF-001", "score": 0.523108720779419, "sibling_score": 0.523108720779419, "answer_score": null, "sibling_qid": "MUM-2024-09-2770-Q002", "sibling_text": "me ae type and specs", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": true }, { "answer_id": "ENG-NOM-001", "score": 0.49101999402046204, "sibling_score": 0.49101999402046204, "answer_score": 0.3395375698804855, "sibling_qid": "MUM-2026-06-3420-Q002", "sibling_text": "nomenclature of me ae explain full", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Nomenclature of ME and AE (asked together)", "cross_family": false }, { "answer_id": "MCC-MEB-P02-003", "score": 0.4719341993331909, "sibling_score": 0.4719341993331909, "answer_score": null, "sibling_qid": "KOL-2021-12-1651-Q003", "sibling_text": "1 what is me engine why me", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Conventional MC / MC-C versus electronic ME — the practical operating differences", "cross_family": true } ] }, { "qid": "KOL-2021-07-1905-Q004", "text": "Everything about boiler improved high lift safety valve, how lift is improved.( First mention lip design, then waste steam piston)", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2021-07-1905", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.746978759765625, "sibling_score": 0.746978759765625, "answer_score": null, "sibling_qid": "MUM-2026-06-3405-Q017", "sibling_text": "improved high lift safety valve details", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ECON-EGB-004", "score": 0.4848455727100372, "sibling_score": null, "answer_score": 0.4848455727100372, "sibling_qid": "", "sibling_text": "safety valve setting after overhaul why set higher than the boiler setting raise pressure under steam on a calibrated gauge adjust spring compression to lift at the approved set pressure verify re seat and blowdown two valves one at a time the other gagged lock and seal surveyor witnessed values are class approved ship specific set pressure accumulation representative limit and blowdown quote the ", "sibling_family": "", "via": "answer_title", "answer_title": "Safety-valve setting after overhaul & why set higher than the boiler", "cross_family": false }, { "answer_id": "HYD-602-004", "score": 0.47302942276000975, "sibling_score": null, "answer_score": 0.47302942276000975, "sibling_qid": "", "sibling_text": "what pump raises the pressure and what pressure and measurements are applied pump a dedicated controllable hydraulic test pump positive displacement plunger piston type hand driven on small boilers motor driven on large ones it must carry its own relief valve set and verified as the approved test procedure requires on incompressible water one extra stroke can spike the pressure", "sibling_family": "", "via": "answer_title", "answer_title": "What pump raises the pressure, and what pressure and measurements are applied?", "cross_family": false } ] }, { "qid": "KOL-2021-07-2451-Q002", "text": "ICCP COMPONENTS ?", "family": "Electrical - ICCP & Cathodic Protection", "subtopic": "ICCP", "tid": "KOL-2021-07-2451", "tray": "review", "candidates": [ { "answer_id": "ICCP-119-P01-002", "score": 0.7358269095420837, "sibling_score": 0.7358269095420837, "answer_score": 0.4905747532844543, "sibling_qid": "MUM-2024-01-1421-Q004", "sibling_text": "iccp complete working with components", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP circuit / control arrangement, construction and main components", "cross_family": false }, { "answer_id": "ICCP-119-P01-001", "score": 0.6623879671096802, "sibling_score": 0.6623879671096802, "answer_score": 0.40583702027797697, "sibling_qid": "MUM-2025-09-1642-Q004", "sibling_text": "function of iccp", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP — purpose, principle and basic working", "cross_family": false }, { "answer_id": "ICCP-119-P01-003", "score": 0.35828112810850143, "sibling_score": null, "answer_score": 0.35828112810850143, "sibling_qid": "", "sibling_text": "iccp values impressed current meaning anode cathode roles and materials", "sibling_family": "", "via": "answer_title", "answer_title": "ICCP values, impressed-current meaning, anode/cathode roles and materials", "cross_family": false } ] }, { "qid": "KOL-2021-07-2453-Q004", "text": "Explosimeter ?", "family": "Gas Detection & Instruments", "subtopic": "Explosimeter / Gas Detector", "tid": "KOL-2021-07-2453", "tray": "review", "candidates": [ { "answer_id": "GAS-DET-008", "score": 0.8182982206344604, "sibling_score": 0.8182982206344604, "answer_score": 0.5454520165920257, "sibling_qid": "KOC-2026-09-2176-Q003", "sibling_text": "explosimeter working", "sibling_family": "Gas Detection & Instruments", "via": "sibling", "answer_title": "Explosimeter: construction, working, calibration, gases detected", "cross_family": false }, { "answer_id": "GAS-DET-006", "score": 0.6973468065261841, "sibling_score": 0.6973468065261841, "answer_score": 0.5095280349254608, "sibling_qid": "KOC-2026-09-2199-Q002", "sibling_text": "explosimeter and tank scope difference", "sibling_family": "Gas Detection & Instruments", "via": "sibling", "answer_title": "Tankscope vs explosimeter: construction, working, where to use, gases", "cross_family": false }, { "answer_id": "GAS-DET-007", "score": 0.5025748640298843, "sibling_score": null, "answer_score": 0.5025748640298843, "sibling_qid": "", "sibling_text": "checking hydrocarbon content in a tank or space choose by atmosphere purpose oxygen present flammable check explosimeter lel inert high concentration tankscope vol calibrate zero and bump test before use fit the correct filter and a sound sample line", "sibling_family": "", "via": "answer_title", "answer_title": "Checking hydrocarbon content in a tank or space", "cross_family": false } ] }, { "qid": "KOL-2021-07-2457-Q002", "text": "Pneumatic push button Diagram ?", "family": "Steering Gear & Hydraulics", "subtopic": "Hydraulic Valves", "tid": "KOL-2021-07-2457", "tray": "review", "candidates": [ { "answer_id": "EXV-P02-002", "score": 0.686570942401886, "sibling_score": 0.686570942401886, "answer_score": null, "sibling_qid": "KOL-2026-02-2964-Q005", "sibling_text": "draw 2 way pneumatic valve with vent", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Seat/spindle grinding, templates, clearances (G1·G2·G3·F1) and seating-angle checks", "cross_family": false }, { "answer_id": "STEER-055-A-003", "score": 0.6290003657341003, "sibling_score": 0.6290003657341003, "answer_score": null, "sibling_qid": "KOC-2023-10-0985-Q003", "sibling_text": "hunting gear draw solenoid valve diagram", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Hunting gear, floating lever and buffer spring", "cross_family": false }, { "answer_id": "PID-CTRL-003", "score": 0.6212562322616577, "sibling_score": 0.6212562322616577, "answer_score": null, "sibling_qid": "KOL-2021-03-2439-Q004", "sibling_text": "what is wide proportional band what is the symbol of push button in hydraulic circuit", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Proportional gain and proportional band", "cross_family": true } ] }, { "qid": "KOL-2021-07-2458-Q003", "text": "Show simple pneumatic valve?", "family": "Steering Gear & Hydraulics", "subtopic": "Hydraulic Valves", "tid": "KOL-2021-07-2458", "tray": "review", "candidates": [ { "answer_id": "EXV-P02-002", "score": 0.7057905197143555, "sibling_score": 0.7057905197143555, "answer_score": null, "sibling_qid": "KOL-2026-02-2964-Q005", "sibling_text": "draw 2 way pneumatic valve with vent", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Seat/spindle grinding, templates, clearances (G1·G2·G3·F1) and seating-angle checks", "cross_family": false }, { "answer_id": "AUC-P03-04", "score": 0.6428951621055603, "sibling_score": 0.6428951621055603, "answer_score": null, "sibling_qid": "KOC-2025-12-1078-Q009", "sibling_text": "what is valve historisis pneumatic valve", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Control-valve positioner — function and calibration of a pneumatic actuator/positioner", "cross_family": true }, { "answer_id": "MAST-PVA-002", "score": 0.6198486089706421, "sibling_score": 0.6198486089706421, "answer_score": null, "sibling_qid": "KOC-2023-03-0174-Q003", "sibling_text": "pv valve diagram", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "P/V valve vs P/V breaker — function, location and difference", "cross_family": true } ] }, { "qid": "KOL-2021-07-2461-Q001", "text": "Salient pole rotor construction? Detail ?", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator / Generator", "tid": "KOL-2021-07-2461", "tray": "review", "candidates": [ { "answer_id": "SYNC-ASYNC-A-002", "score": 0.7115610837936401, "sibling_score": 0.7115610837936401, "answer_score": 0.5415975034236907, "sibling_qid": "KOL-2022-09-4012-Q003", "sibling_text": "salient rotor construction", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Construction and main parts of a synchronous motor", "cross_family": true }, { "answer_id": "ROT-STAT-A-001", "score": 0.6429049968719482, "sibling_score": 0.6429049968719482, "answer_score": 0.5304360330104828, "sibling_qid": "KOC-2026-08-2123-Q006", "sibling_text": "squirrel cage rotor construction", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Squirrel-cage rotor — construction, parts and materials", "cross_family": true }, { "answer_id": "ROT-STAT-A-002", "score": 0.6280335187911987, "sibling_score": 0.6280335187911987, "answer_score": 0.5214649677276612, "sibling_qid": "KOL-2021-01-2413-Q004", "sibling_text": "motor rotor construction", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Rotor and stator construction of a three-phase induction motor", "cross_family": true } ] }, { "qid": "KOL-2021-07-2462-Q002", "text": "Armour winding? Draw constructional view of the the same with all details.? Where in E/R used ?", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator / Generator", "tid": "KOL-2021-07-2462", "tray": "new", "candidates": [ { "answer_id": "CBL-INS-B-002", "score": 0.51923668384552, "sibling_score": 0.51923668384552, "answer_score": null, "sibling_qid": "KOL-2021-03-2436-Q001", "sibling_text": "armour cable draw the cross section and the components of cable insulation material", "sibling_family": "", "via": "sibling", "answer_title": "Layers and construction of a shipboard cable", "cross_family": false }, { "answer_id": "AVR-EXC-H-001", "score": 0.5039548873901367, "sibling_score": 0.5039548873901367, "answer_score": null, "sibling_qid": "KOL-2019-07-2301-Q002", "sibling_text": "draw avr diagram cross question where inside the alternator are all windings and parts present with specific location", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "AVR — location, components and fault checks", "cross_family": false }, { "answer_id": "AVR-EXC-F-001", "score": 0.4892270565032959, "sibling_score": 0.4892270565032959, "answer_score": null, "sibling_qid": "KOC-2025-07-1546-Q002", "sibling_text": "carbon pile avr drawing", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "How does a carbon-pile AVR / regulator work?", "cross_family": false } ] }, { "qid": "KOL-2021-07-2463-Q003", "text": "Stator construction drawing Both longitudinal and cross sectional view ?", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator / Generator", "tid": "KOL-2021-07-2463", "tray": "review", "candidates": [ { "answer_id": "ROTSTAT-C-003", "score": 0.6530803442001343, "sibling_score": 0.6530803442001343, "answer_score": 0.5221761882305145, "sibling_qid": "KOL-2026-07-4250-Q002", "sibling_text": "stator construction how many winding in stator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Stator construction, winding & types", "cross_family": false }, { "answer_id": "ROT-STAT-A-001", "score": 0.5985075235366821, "sibling_score": 0.5985075235366821, "answer_score": null, "sibling_qid": "MUM-2026-07-3798-Q007", "sibling_text": "stator construction of induction motor end rings in squirrel cage induction motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Squirrel-cage rotor — construction, parts and materials", "cross_family": true }, { "answer_id": "SYNC-ASYNC-A-002", "score": 0.5965341925621033, "sibling_score": 0.5965341925621033, "answer_score": 0.49427762925624846, "sibling_qid": "KOC-2024-10-1416-Q002", "sibling_text": "cross section of induction and synchronous motor", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Construction and main parts of a synchronous motor", "cross_family": false } ] }, { "qid": "KOL-2021-07-2463-Q004", "text": "ICCP ?", "family": "Electrical - ICCP & Cathodic Protection", "subtopic": "ICCP", "tid": "KOL-2021-07-2463", "tray": "review", "candidates": [ { "answer_id": "ICCP-119-P01-001", "score": 0.7966793179512024, "sibling_score": 0.7966793179512024, "answer_score": 0.47619024515151975, "sibling_qid": "MUM-2023-06-1389-Q001", "sibling_text": "iccp", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP — purpose, principle and basic working", "cross_family": false }, { "answer_id": "ICCP-119-P01-002", "score": 0.4517800509929657, "sibling_score": null, "answer_score": 0.4517800509929657, "sibling_qid": "", "sibling_text": "iccp circuit control arrangement construction and main components", "sibling_family": "", "via": "answer_title", "answer_title": "ICCP circuit / control arrangement, construction and main components", "cross_family": false }, { "answer_id": "ICCP-119-P01-003", "score": 0.39591798186302185, "sibling_score": null, "answer_score": 0.39591798186302185, "sibling_qid": "", "sibling_text": "iccp values impressed current meaning anode cathode roles and materials", "sibling_family": "", "via": "answer_title", "answer_title": "ICCP values, impressed-current meaning, anode/cathode roles and materials", "cross_family": false } ] }, { "qid": "KOL-2021-07-2465-Q002", "text": "Salient pole rotor construction with diagram ?", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator / Generator", "tid": "KOL-2021-07-2465", "tray": "review", "candidates": [ { "answer_id": "SYNC-ASYNC-A-002", "score": 0.6837579011917114, "sibling_score": 0.6837579011917114, "answer_score": 0.5496058523654938, "sibling_qid": "KOL-2022-09-4012-Q003", "sibling_text": "salient rotor construction", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Construction and main parts of a synchronous motor", "cross_family": true }, { "answer_id": "ROT-STAT-A-001", "score": 0.6437166929244995, "sibling_score": 0.6437166929244995, "answer_score": 0.5235574901103973, "sibling_qid": "KOC-2026-08-2123-Q006", "sibling_text": "squirrel cage rotor construction", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Squirrel-cage rotor — construction, parts and materials", "cross_family": true }, { "answer_id": "ROT-STAT-A-002", "score": 0.6380136609077454, "sibling_score": 0.6380136609077454, "answer_score": 0.5317674815654755, "sibling_qid": "KOL-2016-08-2065-Q003", "sibling_text": "rotor construction of motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Rotor and stator construction of a three-phase induction motor", "cross_family": true } ] }, { "qid": "KOL-2021-07-2465-Q006", "text": "Brushless alternator and AVR working ?", "family": "Electrical - Generator & Alternator", "subtopic": "Brushless Alternator", "tid": "KOL-2021-07-2465", "tray": "review", "candidates": [ { "answer_id": "AVR-EXC-G-002", "score": 0.7029903531074524, "sibling_score": 0.7029903531074524, "answer_score": 0.5120079845190048, "sibling_qid": "MUM-2025-05-1525-Q001", "sibling_text": "uti tape working and full form brushless alternator component why avr", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Brushless excitation: how DC reaches the rotor", "cross_family": false }, { "answer_id": "BRUSHALT-A-001", "score": 0.7028331160545349, "sibling_score": 0.7028331160545349, "answer_score": 0.5308239161968231, "sibling_qid": "MUM-2026-05-3324-Q003", "sibling_text": "brushless alternator working", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01 · Working principle of the brushless alternator / brushless excitation systemHigh", "cross_family": false }, { "answer_id": "BL-ALT-C-001", "score": 0.6668270230293274, "sibling_score": 0.6668270230293274, "answer_score": null, "sibling_qid": "KOL-2021-03-2432-Q002", "sibling_text": "brushless alternator only tell electrical advantage", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Electrical advantages of brushless excitation over brushed / static", "cross_family": false } ] }, { "qid": "KOL-2021-07-2467-Q002", "text": "Intrinsically safe equipment ? voltage and ammeter readings? why resistor is fitted ? Zener diode ?", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOL-2021-07-2467", "tray": "new", "candidates": [ { "answer_id": "FSF-BF073-004", "score": 0.6354793310165405, "sibling_score": 0.6354793310165405, "answer_score": null, "sibling_qid": "CHE-2026-03-0359-Q001", "sibling_text": "zener diode zener barrier working in intrinsically safe", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a magnetic fail safe?", "cross_family": false }, { "answer_id": "HAZ-EX-B-001", "score": 0.6242842674255371, "sibling_score": 0.6242842674255371, "answer_score": null, "sibling_qid": "KOL-2017-05-2127-Q001", "sibling_text": "intrinsically safe circuit where used zener in detail", "sibling_family": "", "via": "sibling", "answer_title": "Intrinsically safe (Ex i) equipment — what it is, how it works, where it is used, how you identify it", "cross_family": false }, { "answer_id": "EPC-P02-03", "score": 0.6064795851707458, "sibling_score": 0.6064795851707458, "answer_score": 0.46678453385829927, "sibling_qid": "KOL-2023-05-2654-Q001", "sibling_text": "zener diode how to control voltage and where excess current go answer through resistance surveyor told me resistance i forget to tell them this things i explain all this thing but answer is through resistance", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Where is a zener diode used on board and why — voltage regulator, AVR, clipper — and explain one application in detail.", "cross_family": false } ] }, { "qid": "KOL-2021-07-2467-Q005", "text": "Draw DOL starter with push button ?", "family": "Electrical - Motors & Starters", "subtopic": "DOL Starter", "tid": "KOL-2021-07-2467", "tray": "review", "candidates": [ { "answer_id": "STR-DEC-A-001", "score": 0.6741135120391846, "sibling_score": 0.6741135120391846, "answer_score": null, "sibling_qid": "KOC-2025-02-1484-Q008", "sibling_text": "draw and explain dol starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "SDST-A-001", "score": 0.5778129696846008, "sibling_score": 0.5778129696846008, "answer_score": 0.28478534519672394, "sibling_qid": "KOC-2024-10-1415-Q002", "sibling_text": "draw and explain star dela starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false }, { "answer_id": "STARTER-DEC-B-002", "score": 0.5645052790641785, "sibling_score": 0.5645052790641785, "answer_score": null, "sibling_qid": "KOL-2026-04-2984-Q002", "sibling_text": "explain dol starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Why a starter is needed & reducing starting current", "cross_family": false } ] }, { "qid": "KOL-2021-07-2468-Q004", "text": "Salient pole rotor construction ?", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator / Generator", "tid": "KOL-2021-07-2468", "tray": "review", "candidates": [ { "answer_id": "SYNC-ASYNC-A-002", "score": 0.7154124975204468, "sibling_score": 0.7154124975204468, "answer_score": 0.527765890955925, "sibling_qid": "KOL-2022-09-4012-Q003", "sibling_text": "salient rotor construction", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Construction and main parts of a synchronous motor", "cross_family": true }, { "answer_id": "ROT-STAT-A-002", "score": 0.6458742618560791, "sibling_score": 0.6458742618560791, "answer_score": 0.5071086287498474, "sibling_qid": "KOL-2023-07-2668-Q002", "sibling_text": "im rotor construction", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Rotor and stator construction of a three-phase induction motor", "cross_family": true }, { "answer_id": "ROT-STAT-A-001", "score": 0.6430700421333313, "sibling_score": 0.6430700421333313, "answer_score": 0.5170257925987244, "sibling_qid": "KOL-2024-04-2710-Q002", "sibling_text": "construction of squirrel cage rotor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Squirrel-cage rotor — construction, parts and materials", "cross_family": true } ] }, { "qid": "KOL-2021-07-2469-Q003", "text": "Bridge rectifier working ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Zener / Diode / Rectifier", "tid": "KOL-2021-07-2469", "tray": "review", "candidates": [ { "answer_id": "EPC-P01-03", "score": 0.77774578332901, "sibling_score": 0.77774578332901, "answer_score": 0.46998634338378903, "sibling_qid": "KOL-2018-09-2226-Q004", "sibling_text": "rectifier uses bridge rectifier working", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Rectifiers — definition, types, and where they are used on board", "cross_family": false }, { "answer_id": "EPC-P01-02", "score": 0.7116637825965881, "sibling_score": 0.7116637825965881, "answer_score": null, "sibling_qid": "CHE-2026-05-0603-Q005", "sibling_text": "name some diode uses bridge rectifier", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Types of diodes, and where diodes are used on board", "cross_family": false }, { "answer_id": "VOLT-SYS-008", "score": 0.6646018624305725, "sibling_score": 0.6646018624305725, "answer_score": null, "sibling_qid": "KOL-2022-07-2582-Q004", "sibling_text": "equipments on bridge supply voltage", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Why standard shipboard voltages: 440, 230/220, 110 and 24", "cross_family": false } ] }, { "qid": "KOL-2021-07-2469-Q004", "text": "HV advantages ? breaker used for HV ?", "family": "", "subtopic": "Circuit Breakers (ACB / VCB / SF6)", "tid": "KOL-2021-07-2469", "tray": "new", "candidates": [ { "answer_id": "HV-SYS-P02-001", "score": 0.6107088327407837, "sibling_score": 0.6107088327407837, "answer_score": null, "sibling_qid": "KOL-2020-02-2372-Q001", "sibling_text": "hv advantages", "sibling_family": "", "via": "sibling", "answer_title": "Why high voltage is used onboard ships", "cross_family": false }, { "answer_id": "CBKR-H-001", "score": 0.6099271774291992, "sibling_score": 0.6099271774291992, "answer_score": 0.4461517930030823, "sibling_qid": "KOL-2020-03-2377-Q001", "sibling_text": "breakers in hv system features advantages what is di electric strength", "sibling_family": "", "via": "sibling", "answer_title": "How do VCB and SF6 breakers work in a high-voltage system, and why are they used instead of an ACB?", "cross_family": false }, { "answer_id": "HV-SYS-P03-001", "score": 0.6031525731086731, "sibling_score": 0.6031525731086731, "answer_score": null, "sibling_qid": "KOC-2025-01-1473-Q005", "sibling_text": "advantage disv of hv", "sibling_family": "", "via": "sibling", "answer_title": "What are the advantages and disadvantages of a high-voltage ship electrical system?", "cross_family": false } ] }, { "qid": "KOL-2021-07-2472-Q006", "text": "Motor protections?", "family": "Electrical - Protection & Relays", "subtopic": "Protection / Relays", "tid": "KOL-2021-07-2472", "tray": "review", "candidates": [ { "answer_id": "IMSP-007", "score": 0.761884868144989, "sibling_score": 0.761884868144989, "answer_score": 0.5582167983055114, "sibling_qid": "MUM-2025-04-1490-Q006", "sibling_text": "protection of motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What safeties and protections are provided in an induction motor and its starter — overload, short-circuit, thermal? What about a motor on deck, and large three-phase motors?", "cross_family": true }, { "answer_id": "OCR-185-006", "score": 0.7506036162376404, "sibling_score": 0.7506036162376404, "answer_score": null, "sibling_qid": "KOC-2026-02-2090-Q008", "sibling_text": "short ckt protection in motor", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "If short-circuit protection fails to operate; how it is checked", "cross_family": false }, { "answer_id": "IP-RATING-001", "score": 0.7137463092803955, "sibling_score": 0.7137463092803955, "answer_score": null, "sibling_qid": "MUM-2026-06-3400-Q010", "sibling_text": "motor ingress protection", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "IP (ingress protection) rating — the two digits, why it is needed, and how it is kept intact on ship equipment", "cross_family": true } ] }, { "qid": "KOL-2021-07-2473-Q002", "text": "Differences between AC and DC ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Active / Reactive / Apparent Power", "tid": "KOL-2021-07-2473", "tray": "review", "candidates": [ { "answer_id": "ALT-GEN-P04-005", "score": 0.6700390577316284, "sibling_score": 0.6700390577316284, "answer_score": 0.5276387751102447, "sibling_qid": "KOC-2024-08-1388-Q003", "sibling_text": "ac dc generator difference", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "AC generator versus DC generator, and why ship supply is AC", "cross_family": true }, { "answer_id": "XFMR-THY-D-002", "score": 0.6545715928077698, "sibling_score": 0.6545715928077698, "answer_score": 0.4223616749048233, "sibling_qid": "MUM-2026-01-1858-Q007", "sibling_text": "which one ac or dc", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Why a transformer needs AC and cannot transform DC", "cross_family": false }, { "answer_id": "VFD-INV-P02-005", "score": 0.6392061710357666, "sibling_score": 0.6392061710357666, "answer_score": 0.4324039787054062, "sibling_qid": "CHE-2026-02-0479-Q010", "sibling_text": "why dc is used instead of ac and how is it converted", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "How do rectifier, DC link and inverter stages convert AC to DC and DC to AC?", "cross_family": false } ] }, { "qid": "KOL-2021-07-2473-Q003", "text": "How to convert ac to dc and dc to ac ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Zener / Diode / Rectifier", "tid": "KOL-2021-07-2473", "tray": "review", "candidates": [ { "answer_id": "EPC-P01-06", "score": 0.691191554069519, "sibling_score": 0.691191554069519, "answer_score": 0.45593616664409636, "sibling_qid": "KOL-2023-05-2655-Q002", "sibling_text": "how to convert ac to dc onboard what arrangement given", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Do we produce DC on board? Sources, the 24/12-volt arrangement, and where DC is used", "cross_family": false }, { "answer_id": "EPC-P01-04", "score": 0.6736516356468201, "sibling_score": 0.6736516356468201, "answer_score": null, "sibling_qid": "KOL-2023-07-3618-Q001", "sibling_text": "diode ac to dc conversion mechanism explain detail", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Half-wave and full-wave rectification — working, waveforms and comparison", "cross_family": false }, { "answer_id": "EPC-P01-03", "score": 0.6722070574760437, "sibling_score": 0.6722070574760437, "answer_score": null, "sibling_qid": "KOL-2026-04-2983-Q001S3", "sibling_text": "rectifier and how it convert ac to dc", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Rectifiers — definition, types, and where they are used on board", "cross_family": false } ] }, { "qid": "KOL-2021-07-2473-Q004", "text": "Explain rectifier and inverter ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Zener / Diode / Rectifier", "tid": "KOL-2021-07-2473", "tray": "review", "candidates": [ { "answer_id": "VFD-INV-P02-005", "score": 0.7045495510101318, "sibling_score": 0.7045495510101318, "answer_score": 0.5407827258110046, "sibling_qid": "CHE-2026-03-0360-Q006", "sibling_text": "what is inverter and rectifier", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "How do rectifier, DC link and inverter stages convert AC to DC and DC to AC?", "cross_family": false }, { "answer_id": "EPC-P01-03", "score": 0.6420671343803406, "sibling_score": 0.6420671343803406, "answer_score": 0.4599772751331329, "sibling_qid": "KOC-2024-09-0413-Q003", "sibling_text": "rectifiers", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Rectifiers — definition, types, and where they are used on board", "cross_family": false }, { "answer_id": "XFMR-THY-D-001", "score": 0.6184232831001282, "sibling_score": 0.6184232831001282, "answer_score": null, "sibling_qid": "KOL-2017-12-2161-Q003", "sibling_text": "explain transformer converter inverter transmitter", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Transformer — principle and working", "cross_family": false } ] }, { "qid": "KOL-2021-07-3412-Q003", "text": "Ref compressor oil charging procedure", "family": "Refrigeration & AC", "subtopic": "Refrigeration Lubricating Oil / Flock Point / Oil Charging", "tid": "KOL-2021-07-3412", "tray": "review", "candidates": [ { "answer_id": "REEF-COMP-004", "score": 0.8383190631866455, "sibling_score": 0.8383190631866455, "answer_score": 0.6709766089916229, "sibling_qid": "KOL-2026-09-4301-Q002", "sibling_text": "how to charge oil in refer compressor", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Charging, replenishing and draining compressor lube oil — including with no charging pump", "cross_family": false }, { "answer_id": "REEF-COMP-001", "score": 0.7797618508338928, "sibling_score": 0.7797618508338928, "answer_score": null, "sibling_qid": "MUM-2026-05-3285-Q008", "sibling_text": "refer compressor charging precautions", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Reefer/AC compressor safeties and cut-outs — safety valve, HP and LP cut-outs", "cross_family": false }, { "answer_id": "REEF-COMP-003", "score": 0.7305449843406677, "sibling_score": 0.7305449843406677, "answer_score": null, "sibling_qid": "MUM-2026-06-3513-Q007", "sibling_text": "how you select the refer compressor oil", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Refrigeration-compressor lube oil — properties, selection, and its jobs beyond lubrication", "cross_family": false } ] }, { "qid": "KOL-2021-07-3412-Q004", "text": "How to weld steel and aluminium?", "family": "Workshop & Welding", "subtopic": "Welding / NDT / Materials", "tid": "KOL-2021-07-3412", "tray": "review", "candidates": [ { "answer_id": "WELD-B-004", "score": 0.7949427962303162, "sibling_score": 0.7949427962303162, "answer_score": 0.5952582746744156, "sibling_qid": "KOL-2025-07-3831-Q003", "sibling_text": "aluminium welding with steel", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Joining dissimilar metals — aluminium to steel, and explosive welding", "cross_family": false }, { "answer_id": "WELD-PATM-007", "score": 0.7433233857154846, "sibling_score": 0.7433233857154846, "answer_score": null, "sibling_qid": "KOL-2021-07-3418-Q002", "sibling_text": "what is cladding plasma welding and how steel is joint to aluminium", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Plasma spraying / coating / cladding", "cross_family": false }, { "answer_id": "WELD-PATM-003", "score": 0.7418269515037537, "sibling_score": 0.7418269515037537, "answer_score": null, "sibling_qid": "KOL-2018-05-3150-Q001", "sibling_text": "how do you weld steel with aluminium for superstructure what filler metal used for tig in this case", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "TIG welding – process, shielding gas, advantages, uses", "cross_family": false } ] }, { "qid": "KOL-2021-07-3412-Q005", "text": "If liner is chrome coated then what coated piston rings are used? How coating is done?", "family": "2-Stroke - Components (Other)", "subtopic": "Piston Rings", "tid": "KOL-2021-07-3412", "tray": "review", "candidates": [ { "answer_id": "PRING-B-003", "score": 0.8053368926048279, "sibling_score": 0.8053368926048279, "answer_score": null, "sibling_qid": "KOL-2025-04-3771-Q005", "sibling_text": "piston ring coating if liner is chromium coated", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Material, coating & manufacture", "cross_family": false }, { "answer_id": "CYL-LINER-P02-003", "score": 0.6503838896751404, "sibling_score": 0.6503838896751404, "answer_score": null, "sibling_qid": "KOL-2019-02-3210-Q002", "sibling_text": "how to check liner wear what will be piston ring if liner is chrome plated", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L3 · T044-PART_02-G003High", "cross_family": false }, { "answer_id": "PIST-CSI-B-001", "score": 0.6499143838882446, "sibling_score": 0.6499143838882446, "answer_score": null, "sibling_qid": "KOL-2022-08-1703-Q005", "sibling_text": "coating on piston", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Main-engine piston — construction and the checks expected", "cross_family": false } ] }, { "qid": "KOL-2021-07-3420-Q004", "text": "safety valve pressure setting Senthil", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2021-07-3420", "tray": "review", "candidates": [ { "answer_id": "ECON-EGB-004", "score": 0.7442998886108398, "sibling_score": 0.7442998886108398, "answer_score": 0.5655108869075774, "sibling_qid": "KOL-2026-09-4304-Q003", "sibling_text": "safety valve setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Safety-valve setting after overhaul & why set higher than the boiler", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.7364696860313416, "sibling_score": 0.7364696860313416, "answer_score": null, "sibling_qid": "CHE-2026-09-3931-Q006", "sibling_text": "boiler safety valve pressure setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-002", "score": 0.7265955805778503, "sibling_score": 0.7265955805778503, "answer_score": null, "sibling_qid": "KOL-2026-02-3922-Q005", "sibling_text": "what is lifting of safety valve tell only within 3 percent of designated set pressure nothing else", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Acceptance limits and durations — the accumulation limit, the maximum test periods, and the action if the limit is exceeded", "cross_family": false } ] }, { "qid": "KOL-2021-07-3422-Q001", "text": "your 3rd engineer reported that during starting of auxiliary boiler, your boiler is feeling heavy vibration followed by quenching of flame. Give reasons and actions as a second engineer.", "family": "Boilers - Operations & Firing", "subtopic": "Boiler Operations", "tid": "KOL-2021-07-3422", "tray": "review", "candidates": [ { "answer_id": "BLR-BSP-001", "score": 0.7683319449424744, "sibling_score": 0.7683319449424744, "answer_score": 0.5837112009525299, "sibling_qid": "MUM-2026-05-3196-Q004", "sibling_text": "3e tells you he started the boiler 2 times and both the times the boiler did not start and stopped with vibrations and loud sound may be it s because of panting what checks as 2e you will do", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler panting (combustion pulsation): causes, symptoms, and your actions as 2/E", "cross_family": false }, { "answer_id": "BFM-330-003", "score": 0.7273517847061157, "sibling_score": 0.7273517847061157, "answer_score": 0.563018524646759, "sibling_qid": "MUM-2026-03-2937-Q011", "sibling_text": "boiler fired and giving vibration and noise why", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler vibration, backflow and furnace blowback during firing", "cross_family": false }, { "answer_id": "BFS-257-006", "score": 0.7085310816764832, "sibling_score": 0.7085310816764832, "answer_score": 0.5252267152070998, "sibling_qid": "MUM-2026-09-3997-Q008", "sibling_text": "boiler misfire reason action before restart", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler backfire / blowback / panting — causes, prevention, actions", "cross_family": false } ] }, { "qid": "KOL-2021-07-3426-Q003", "text": "MAIN BEARING REMOVAL", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "", "tid": "KOL-2021-07-3426", "tray": "review", "candidates": [ { "answer_id": "MAIN-BRG-B-001", "score": 0.8484696745872498, "sibling_score": 0.8484696745872498, "answer_score": 0.5288751274347305, "sibling_qid": "MUM-2026-05-3195-Q005", "sibling_text": "main bearing removal explain", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you open up / remove / overhaul a main-engine main bearing?", "cross_family": false }, { "answer_id": "MN-BRG-C-001", "score": 0.8253392577171326, "sibling_score": 0.8253392577171326, "answer_score": 0.5496065109968186, "sibling_qid": "MUM-2022-10-1027-Q013", "sibling_text": "main bearing removal procedure", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Opening, removing and overhauling a main bearing", "cross_family": false }, { "answer_id": "AE-MB-001", "score": 0.8245154023170471, "sibling_score": 0.8245154023170471, "answer_score": null, "sibling_qid": "MUM-2026-09-3957-Q002", "sibling_text": "ae main bearing removal", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Removing and renewing an auxiliary-engine main bearing", "cross_family": false } ] }, { "qid": "KOL-2021-07-3428-Q003", "text": "ae after decarb two unit load diff what will you do", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Decarb / Balancing / High Exhaust Temperature", "tid": "KOL-2021-07-3428", "tray": "new", "candidates": [ { "answer_id": "AEDEC-291-004", "score": 0.6265550255775452, "sibling_score": 0.6265550255775452, "answer_score": null, "sibling_qid": "KOL-2024-04-3685-Q005", "sibling_text": "ae checks after decarb how to take on load", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "4. Checks on no-load and before taking load", "cross_family": false }, { "answer_id": "AEDEC-291-003", "score": 0.585728108882904, "sibling_score": 0.585728108882904, "answer_score": null, "sibling_qid": "KOL-2017-09-3094-Q003", "sibling_text": "checks after a e decarb before putting on load", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "3. Pre-start checks after decarb / recommissioning", "cross_family": false }, { "answer_id": "AEDEC-291-008", "score": 0.5461822152137756, "sibling_score": 0.5461822152137756, "answer_score": null, "sibling_qid": "MUM-2026-03-1004-Q008", "sibling_text": "ae lo cons high after decarb", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "8. Post-decarb abnormal running — overspeed, RPM, air-start, LO", "cross_family": false } ] }, { "qid": "KOL-2021-07-3430-Q001", "text": "Construction of fully built cranshaft advantage and disadvantages", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft Material", "tid": "KOL-2021-07-3430", "tray": "new", "candidates": [ { "answer_id": "CRANK-217-001", "score": 0.5222610235214233, "sibling_score": 0.5222610235214233, "answer_score": null, "sibling_qid": "CHE-2026-08-3882-Q002", "sibling_text": "types of crankshaft advantages and disadvantages", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankshaft types and how the type is identified", "cross_family": false }, { "answer_id": "CRANK-217-002", "score": 0.5128377676010132, "sibling_score": 0.5128377676010132, "answer_score": 0.38636103868484495, "sibling_qid": "MUM-2026-05-3163-Q008", "sibling_text": "how is semi built crankshaft constructed some cross questions like advantages over fully built and where these type of crankshaft is seen", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Semi-built crankshaft: construction, fitting and comparison", "cross_family": false }, { "answer_id": "CRANE-ER-007", "score": 0.4890650808811188, "sibling_score": 0.4890650808811188, "answer_score": 0.43318866193294525, "sibling_qid": "KOC-2025-10-1957-Q014", "sibling_text": "advantages of chain blocks i said less effort more force to lift heavy loads", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Chain block as the crane fallback: selection, advantage & principle", "cross_family": true } ] }, { "qid": "KOL-2021-07-3431-Q004", "text": "Rudder Cracked, how to repair, which welding, what tests to carried out at DD.", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2021-07-3431", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.7225885987281799, "sibling_score": 0.7225885987281799, "answer_score": null, "sibling_qid": "KOL-2018-02-3123-Q004", "sibling_text": "drydock checks on rudder stern tube propeller all rudder clearences taking and values repairs cracks got funtion 6", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "HULL-DD-001", "score": 0.6543641686439514, "sibling_score": 0.6543641686439514, "answer_score": 0.5261367410421371, "sibling_qid": "KOL-2022-07-3548-Q002", "sibling_text": "crack in hull vesselin dd how to repair welding don t want to listen insert plate", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "1. Hull plate / shell-weld crack repair in drydock", "cross_family": true }, { "answer_id": "DUS-P5-05", "score": 0.574733954668045, "sibling_score": null, "answer_score": 0.574733954668045, "sibling_qid": "", "sibling_text": "rudder checks and rudder blade tightness leak test in drydock visual checks coating condition cavitation erosion on the blade leading edge propeller side face sacrificial anodes against the approved cathodic protection plan grounding continuity against the approved acceptance criterion plate and weld cracks pintle clearance measured with feeler the numerical acceptance limit is class specific and ", "sibling_family": "", "via": "answer_title", "answer_title": "Rudder checks and rudder-blade tightness/leak test in drydock", "cross_family": false } ] }, { "qid": "KOL-2021-07-3434-Q002", "text": "Manual firing of boiler", "family": "Boilers - Operations & Firing", "subtopic": "Boiler Operations", "tid": "KOL-2021-07-3434", "tray": "review", "candidates": [ { "answer_id": "BLR-OPS-007", "score": 0.8380225300788879, "sibling_score": 0.8380225300788879, "answer_score": 0.5294695675373077, "sibling_qid": "MUM-2026-06-3587-Q004", "sibling_text": "manual firing of boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Explain the firing sequence of an automatically fired boiler.", "cross_family": false }, { "answer_id": "BFM-330-003", "score": 0.7762921452522278, "sibling_score": 0.7762921452522278, "answer_score": null, "sibling_qid": "KOC-2026-05-0014-Q005", "sibling_text": "boiler manual firing and cross", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler vibration, backflow and furnace blowback during firing", "cross_family": false }, { "answer_id": "BLR-OPS-004", "score": 0.7446948289871216, "sibling_score": 0.7446948289871216, "answer_score": null, "sibling_qid": "MUM-2026-07-3768-Q007", "sibling_text": "instruction to 4e to start the boiler in manual", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Explain the procedure for starting a boiler from a laid-up condition.", "cross_family": false } ] }, { "qid": "KOL-2021-07-3435-Q003", "text": "tell about semi built crankshaft?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft Material", "tid": "KOL-2021-07-3435", "tray": "review", "candidates": [ { "answer_id": "CRANK-217-001", "score": 0.7508265376091003, "sibling_score": 0.7508265376091003, "answer_score": 0.5615012407302856, "sibling_qid": "MUM-2026-01-1240-Q003", "sibling_text": "crankshaft type explain semi built", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankshaft types and how the type is identified", "cross_family": false }, { "answer_id": "CRANK-217-002", "score": 0.6944589018821716, "sibling_score": 0.6944589018821716, "answer_score": 0.5505829066038131, "sibling_qid": "MUM-2026-05-3163-Q008", "sibling_text": "how is semi built crankshaft constructed some cross questions like advantages over fully built and where these type of crankshaft is seen", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Semi-built crankshaft: construction, fitting and comparison", "cross_family": false }, { "answer_id": "CRANK-217-004", "score": 0.6337127089500427, "sibling_score": 0.6337127089500427, "answer_score": null, "sibling_qid": "MUM-2026-02-2570-Q003", "sibling_text": "semi built crank shaft slippage", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankshaft slippage, tell-tale marks and action if found", "cross_family": false } ] }, { "qid": "KOL-2021-07-3993-Q002", "text": "As a 2E, you want to raise a requisition for motor for sea water pump. What all data you will provide in the requisition.", "family": "Electrical - Motors & Starters", "subtopic": "Motor Specification / Ordering", "tid": "KOL-2021-07-3993", "tray": "review", "candidates": [ { "answer_id": "IP-ENCL-002", "score": 0.7448791861534119, "sibling_score": 0.7448791861534119, "answer_score": null, "sibling_qid": "KOC-2026-01-1692-Q005", "sibling_text": "how to order main sea water pump motor and ip and class", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Suitable IP rating by location — ER, deck, pump, generator", "cross_family": false }, { "answer_id": "IRT-A-007", "score": 0.7121424078941345, "sibling_score": 0.7121424078941345, "answer_score": null, "sibling_qid": "MUM-2026-02-1920-Q007", "sibling_text": "pump motor is wet with sea water action taken as 2e", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Wet or submerged motor - recovery and drying out", "cross_family": false }, { "answer_id": "IP-ENCL-001", "score": 0.6889286637306213, "sibling_score": 0.6889286637306213, "answer_score": null, "sibling_qid": "KOC-2026-04-1744-Q007", "sibling_text": "er overhead crane which motor motor requsition to make what all details you provide have to say all details with spec", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "IP rating of motors — what the numbers mean", "cross_family": false } ] }, { "qid": "KOL-2021-07-3993-Q004", "text": "High voltage system all advantages.", "family": "Electrical - Distribution & MSB", "subtopic": "High Voltage System / Earthing / Shore Supply", "tid": "KOL-2021-07-3993", "tray": "review", "candidates": [ { "answer_id": "HV-SYS-P02-001", "score": 0.7598204612731934, "sibling_score": 0.7598204612731934, "answer_score": null, "sibling_qid": "KOC-2024-11-1877-Q004", "sibling_text": "advantages of high voltage system", "sibling_family": "", "via": "sibling", "answer_title": "Why high voltage is used onboard ships", "cross_family": false }, { "answer_id": "HV-SYS-P03-001", "score": 0.7324036359786987, "sibling_score": 0.7324036359786987, "answer_score": 0.4956145495176315, "sibling_qid": "KOC-2026-08-2123-Q004", "sibling_text": "high voltage system advantage disadvantage", "sibling_family": "Electrical - High Voltage", "via": "sibling", "answer_title": "What are the advantages and disadvantages of a high-voltage ship electrical system?", "cross_family": true }, { "answer_id": "HV-SYS-P04-001", "score": 0.48189976811408997, "sibling_score": null, "answer_score": 0.48189976811408997, "sibling_qid": "", "sibling_text": "hv sys p04 001 hv hazards advantages and safeties", "sibling_family": "", "via": "answer_title", "answer_title": "HV-SYS-P04-001 - HV hazards, advantages and safeties", "cross_family": false } ] }, { "qid": "KOL-2021-08-0533-Q001", "text": "1 Mlc", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOL-2021-08-0533", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.6019081473350525, "sibling_score": 0.6019081473350525, "answer_score": 0.34647174179553986, "sibling_qid": "KOC-2025-07-0617-Q004", "sibling_text": "dmlc 1 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "MLC-WRH-B-007", "score": 0.5810256600379944, "sibling_score": 0.5810256600379944, "answer_score": null, "sibling_qid": "MUM-2026-02-1260-Q001", "sibling_text": "1 detainable deficiency as per mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false }, { "answer_id": "CLC-CIV-A-001", "score": 0.5636122226715088, "sibling_score": 0.5636122226715088, "answer_score": null, "sibling_qid": "KOL-2025-10-1105-Q007", "sibling_text": "1 clc full", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "CLC Convention — objective, scope and shipowner liability", "cross_family": true } ] }, { "qid": "KOL-2021-08-0533-Q004", "text": "4 orb entries part -1 and part-2", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "KOL-2021-08-0533", "tray": "new", "candidates": [ { "answer_id": "OWS-ORB-006", "score": 0.599991500377655, "sibling_score": 0.599991500377655, "answer_score": 0.21047579795122145, "sibling_qid": "MUM-2025-09-0447-Q007", "sibling_text": "orb entries", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "6. Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-002", "score": 0.5720115900039673, "sibling_score": 0.5720115900039673, "answer_score": 0.2091148629784584, "sibling_qid": "CHE-2024-10-0509-Q002", "sibling_text": "orb entries all in detail", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "The Oil Record Book Part I — purpose, the letter codes, and how entries are made", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-004", "score": 0.43367403745651245, "sibling_score": 0.43367403745651245, "answer_score": null, "sibling_qid": "KOC-2026-04-0901-Q013", "sibling_text": "orb weekly entry code and number", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Weekly ORB entries — the mandatory sludge retention record, the bunker entry, and what is voluntary", "cross_family": false } ] }, { "qid": "KOL-2021-08-0536-Q004", "text": "Oil record book data enteries", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "KOL-2021-08-0536", "tray": "review", "candidates": [ { "answer_id": "ORB-IOPP-OWS-002", "score": 0.803496778011322, "sibling_score": 0.803496778011322, "answer_score": 0.47755629718303677, "sibling_qid": "MUM-2026-06-3584-Q008", "sibling_text": "oil record book entries", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "The Oil Record Book Part I — purpose, the letter codes, and how entries are made", "cross_family": false }, { "answer_id": "AIRP-188-005", "score": 0.6193758249282837, "sibling_score": 0.6193758249282837, "answer_score": null, "sibling_qid": "KOL-2025-09-1092-Q002", "sibling_text": "ods record book what all entries", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "ODS Record Book and the IAPP equipment list — what and where?", "cross_family": true }, { "answer_id": "OWS-ORB-006", "score": 0.5757220387458801, "sibling_score": 0.5757220387458801, "answer_score": 0.440269860625267, "sibling_qid": "MUM-2024-07-0181-Q008", "sibling_text": "orb part 1 and part 2 entries tell me about bulk lube oil entry", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "6. Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": false } ] }, { "qid": "KOL-2021-08-0537-Q003", "text": "Immersion suit", "family": "SOLAS - LSA & Lifeboats", "subtopic": "LSA Code", "tid": "KOL-2021-08-0537", "tray": "review", "candidates": [ { "answer_id": "LB-SURV-C-003", "score": 0.6588939428329468, "sibling_score": 0.6588939428329468, "answer_score": null, "sibling_qid": "CHE-2026-02-0103-Q002", "sibling_text": "immersion suit monthly 6 month and annual maintenance", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Routine maintenance ladder — weekly / monthly / quarterly / 6-monthly onboard checks", "cross_family": false }, { "answer_id": "SCS-DEF-005", "score": 0.5790414214134216, "sibling_score": 0.5790414214134216, "answer_score": null, "sibling_qid": "MUM-2026-04-0921-Q001", "sibling_text": "deck outfitting and underwater outftting", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "5. What are deck outfitting and underwater outfitting?", "cross_family": true }, { "answer_id": "LB-D-007", "score": 0.5752275586128235, "sibling_score": 0.5752275586128235, "answer_score": 0.41629372984170915, "sibling_qid": "MUM-2025-11-0586-Q002", "sibling_text": "life boat entry wat all ppe u will wear during emergency launching", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "PPE for boarding / emergency lifeboat launching", "cross_family": false } ] }, { "qid": "KOL-2021-08-0541-Q003", "text": "Ig alarms and trips", "family": "Tanker - Inert Gas System", "subtopic": "IG Alarms / Trips", "tid": "KOL-2021-08-0541", "tray": "review", "candidates": [ { "answer_id": "IGAT-583-001", "score": 0.7811686396598816, "sibling_score": 0.7811686396598816, "answer_score": 0.4530900180339813, "sibling_qid": "MUM-2026-04-0929-Q002", "sibling_text": "ig alarms and trips", "sibling_family": "Tanker - Inert Gas System", "via": "sibling", "answer_title": "State all the alarms, trips and safety cut-outs provided on a tanker inert gas (IG) system.", "cross_family": false }, { "answer_id": "MR-DS-PV-B-003", "score": 0.45927720069885253, "sibling_score": null, "answer_score": 0.45927720069885253, "sibling_qid": "", "sibling_text": "3 alarms trips valves and abnormal conditions of the deck seal key seal alarm low water level audible and visual fss requirement any low low trip interlock of gas delivery is maker ship sms logic and should be quoted from the approved ig manual a low seal a lost first barrier pressure oxygen instrumentation when ig is being supplied continuously indicate and permanently record the pressure of the ", "sibling_family": "", "via": "answer_title", "answer_title": "3. Alarms, trips, valves, and abnormal conditions of the deck seal", "cross_family": false }, { "answer_id": "IGAT-583-003", "score": 0.4341107964515686, "sibling_score": null, "answer_score": 0.4341107964515686, "sibling_qid": "", "sibling_text": "what are the set values for the ig system alarms and trips ig line high low and low low pressure oxygen content pv valve and breaker pressures statutory fss code ch 15 msc 367 93 oxygen alarm in excess of 5 by volume in the delivered gas 2 2 4 5 1 1 statutory gas pressure alarm less than 100 mm water gauge 2 2 4 5 1 3", "sibling_family": "", "via": "answer_title", "answer_title": "What are the set values for the IG system alarms and trips — IG line high, low and low-low pressure, oxygen content, PV valve and breaker pressures?", "cross_family": false } ] }, { "qid": "KOL-2021-08-0541-Q008", "text": "External stake holders of ism", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOL-2021-08-0541", "tray": "new", "candidates": [ { "answer_id": "ISM-DPA-002", "score": 0.4915996193885803, "sibling_score": 0.4915996193885803, "answer_score": null, "sibling_qid": "KOC-2023-03-0172-Q004", "sibling_text": "ism who is responsible for ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "DPA basis : which convention, which code, and who is responsible for ISM", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.47363585233688354, "sibling_score": 0.47363585233688354, "answer_score": null, "sibling_qid": "MUM-2025-09-0457-Q008", "sibling_text": "objectives of ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "ISM-AUD-P02-002", "score": 0.46763885021209717, "sibling_score": 0.46763885021209717, "answer_score": null, "sibling_qid": "KOC-2026-01-2087-Q013", "sibling_text": "what is the purpose of ism internal", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM Code — what it is, purpose, objectives and structure", "cross_family": false } ] }, { "qid": "KOL-2021-08-0542-Q003", "text": "classification society ,its purpose and certificates issued by classification society", "family": "Surveys - Statutory", "subtopic": "PSC / Flag / RO / CIC / MoU", "tid": "KOL-2021-08-0542", "tray": "review", "candidates": [ { "answer_id": "CERT-LIST-P01-001", "score": 0.7536864876747131, "sibling_score": 0.7536864876747131, "answer_score": null, "sibling_qid": "KOL-2023-05-2653-Q004", "sibling_text": "classsifiation sociaty certificate", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "List the statutory certificates carried onboard a ship.", "cross_family": false }, { "answer_id": "IACS-324-005", "score": 0.7248966693878174, "sibling_score": 0.7248966693878174, "answer_score": 0.5222620636224746, "sibling_qid": "KOL-2021-12-0583-Q006", "sibling_text": "statutory certificate definition ro classification society difference", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "5. What is the difference between a classification society, a Recognized Organization, and statutory certification?", "cross_family": false }, { "answer_id": "IACS-324-002", "score": 0.6701189279556274, "sibling_score": 0.6701189279556274, "answer_score": null, "sibling_qid": "CHE-2025-10-0076-Q006", "sibling_text": "what is classification society it s functions", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "2. What is a classification society, why does a ship need class, and what are its functions?", "cross_family": false } ] }, { "qid": "KOL-2021-08-0543-Q005", "text": "What are the emergency identified under ism audit. Forgot others...will post later .", "family": "ISM Code", "subtopic": "SMS / Functional Requirements", "tid": "KOL-2021-08-0543", "tray": "new", "candidates": [ { "answer_id": "ISM-ELEM-005", "score": 0.6186150908470154, "sibling_score": 0.6186150908470154, "answer_score": 0.4097834378480911, "sibling_qid": "MUM-2025-09-0478-Q001", "sibling_text": "emergency preparedness in ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Emergency preparedness (Element 8)", "cross_family": false }, { "answer_id": "ISMNC-010", "score": 0.577349841594696, "sibling_score": 0.577349841594696, "answer_score": null, "sibling_qid": "KOL-2025-09-1089-Q005", "sibling_text": "major deficiency under ism code if psc inspector comes onboard finds that emergency fire pump does not take suction he gives a major deficiency at the same time can an ism auditor give the same deficiency under ism if yes why if no why", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Differentiate between a deficiency, an observation, a non-conformity and a major non-conformity, including the deficiency codes used at inspection.", "cross_family": false }, { "answer_id": "ISM-2E-C-001", "score": 0.5679711103439331, "sibling_score": 0.5679711103439331, "answer_score": null, "sibling_qid": "KOC-2025-08-0641-Q004", "sibling_text": "ism external audit preparation ans 2e but your documentation and alarm testing record is perfect everything else explain", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM audit / survey preparation as Second Engineer — beyond the paperwork", "cross_family": false } ] }, { "qid": "KOL-2021-08-0546-Q005", "text": "continental shelf", "family": "Other Conventions", "subtopic": "UNCLOS", "tid": "KOL-2021-08-0546", "tray": "review", "candidates": [ { "answer_id": "UNCLOS-004", "score": 0.8498675227165222, "sibling_score": 0.8498675227165222, "answer_score": 0.565826827287674, "sibling_qid": "KOL-2026-03-1198-Q008", "sibling_text": "continental shelf", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is the continental shelf under UNCLOS and what is its range?", "cross_family": false }, { "answer_id": "UNCLOS-003", "score": 0.6519727110862732, "sibling_score": 0.6519727110862732, "answer_score": 0.43100783228874207, "sibling_qid": "KOL-2025-09-1054-Q007", "sibling_text": "territorial waters", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What are the maritime zones under UNCLOS — territorial waters, the contiguous zone and the international maritime boundary?", "cross_family": false }, { "answer_id": "UNCLOS-005", "score": 0.6401830315589905, "sibling_score": 0.6401830315589905, "answer_score": 0.4713852763175964, "sibling_qid": "KOC-2024-07-0359-Q001", "sibling_text": "coastal state requirements as per unclos", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is a coastal state under UNCLOS, and how does it differ from the flag state and the port state?", "cross_family": false } ] }, { "qid": "KOL-2021-08-0548-Q003", "text": "Mlc 2006 purpose.", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOL-2021-08-0548", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-007", "score": 0.4707922339439392, "sibling_score": 0.4707922339439392, "answer_score": null, "sibling_qid": "MUM-2026-02-0734-Q007", "sibling_text": "mlc 2006 detainable deficiency", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false }, { "answer_id": "DUS-P1-03", "score": 0.3790281414985657, "sibling_score": 0.3790281414985657, "answer_score": null, "sibling_qid": "KOL-2023-04-0735-Q004", "sibling_text": "docking plan 5 mlc 2006", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Docking plan — content, purpose and how the 2E uses it", "cross_family": true }, { "answer_id": "MLC-WRH-B-006", "score": 0.37666386365890503, "sibling_score": 0.37666386365890503, "answer_score": null, "sibling_qid": "MUM-2026-07-3680-Q005", "sibling_text": "what is mlc certificate under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false } ] }, { "qid": "KOL-2021-08-1611-Q006", "text": "boiler and economiser safety valve setting and reasons", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2021-08-1611", "tray": "review", "candidates": [ { "answer_id": "ECON-EGB-004", "score": 0.7171334028244019, "sibling_score": 0.7171334028244019, "answer_score": 0.5339414715766907, "sibling_qid": "KOL-2025-10-3868-Q005", "sibling_text": "why economiser safety valve has highier setting than auxiliary boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Safety-valve setting after overhaul & why set higher than the boiler", "cross_family": true }, { "answer_id": "BWTEST-A-001", "score": 0.7075347304344177, "sibling_score": 0.7075347304344177, "answer_score": null, "sibling_qid": "MUM-2026-05-3281-Q004", "sibling_text": "setting of boiler safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.6909942030906677, "sibling_score": 0.6909942030906677, "answer_score": null, "sibling_qid": "MUM-2026-03-2935-Q013", "sibling_text": "boiler safety valve setting in presence of surveyor after survey", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false } ] }, { "qid": "KOL-2021-08-1613-Q003", "text": "Firing load transfer from cylinder head transmitted to bed plate 4 bourdon tube pressure gauge.", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Bedplate / A-Frame", "tid": "KOL-2021-08-1613", "tray": "new", "candidates": [ { "answer_id": "CCH-590-002", "score": 0.6161378622055054, "sibling_score": 0.6161378622055054, "answer_score": null, "sibling_qid": "KOL-2017-07-3065-Q003", "sibling_text": "cylinder head of aux engine press test", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "How do you pressure test a cylinder head, and how do you find and rectify a leak from it?", "cross_family": true }, { "answer_id": "TR-TB-PA-001", "score": 0.6136366724967957, "sibling_score": 0.6136366724967957, "answer_score": 0.5203768074512481, "sibling_qid": "KOL-2024-04-3686-Q003", "sibling_text": "how firing forces transmitted tie rods arrangement how fitted how crankshaft rests on bedplate how bed plate girders fitted", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Function of tie rods and the firing-load path", "cross_family": false }, { "answer_id": "TPL-SENS-A-002", "score": 0.5873306393623352, "sibling_score": 0.5873306393623352, "answer_score": null, "sibling_qid": "KOL-2025-12-3899-Q003", "sibling_text": "pressure transducer working", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Pressure transmitter / transducer / switch working and calibration", "cross_family": true } ] }, { "qid": "KOL-2021-08-1615-Q006", "text": "minimum number of units in 2 stroke for air start", "family": "2-Stroke - Reversing & Maneuvering", "subtopic": "Air Distributor", "tid": "KOL-2021-08-1615", "tray": "review", "candidates": [ { "answer_id": "AE4T-615-002", "score": 0.6724468469619751, "sibling_score": 0.6724468469619751, "answer_score": 0.5852847725152969, "sibling_qid": "KOL-2016-10-1246-Q001", "sibling_text": "min no of units for positive starting in 4 stroke", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Minimum units for positive air starting, and the factors", "cross_family": true }, { "answer_id": "EICU-MAN-P02-004", "score": 0.605197012424469, "sibling_score": 0.605197012424469, "answer_score": null, "sibling_qid": "KOL-2018-04-1858-Q002", "sibling_text": "2 starting air line number of stop valves interlock etc", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Main-engine manoeuvring interlocks and the running-direction interlock", "cross_family": false }, { "answer_id": "AIR-DIST-001", "score": 0.5419931411743164, "sibling_score": 0.5419931411743164, "answer_score": null, "sibling_qid": "KOL-2022-05-1678-Q005", "sibling_text": "2 starting air distributor detail i told him both axial and radial type", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Air distributor — construction, types and working", "cross_family": false } ] }, { "qid": "KOL-2021-08-1617-Q007", "text": "Type of safety valve. How it works.", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2021-08-1617", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.6934416890144348, "sibling_score": 0.6934416890144348, "answer_score": null, "sibling_qid": "MUM-2026-07-3737-Q004", "sibling_text": "boiler type safety valve type lift of safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACRV-005", "score": 0.6814708113670349, "sibling_score": 0.6814708113670349, "answer_score": 0.5561647057533264, "sibling_qid": "MUM-2025-08-1151-Q012", "sibling_text": "safety valve vs relief valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.6768255829811096, "sibling_score": 0.6768255829811096, "answer_score": null, "sibling_qid": "MUM-2026-03-2589-Q003", "sibling_text": "checks on safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false } ] }, { "qid": "KOL-2021-08-1617-Q008", "text": "If lip is bigger in safety valve, how will it effect.", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2021-08-1617", "tray": "new", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.5564059615135193, "sibling_score": 0.5564059615135193, "answer_score": null, "sibling_qid": "MUM-2026-06-3405-Q017", "sibling_text": "improved high lift safety valve details", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACRV-005", "score": 0.5335777401924133, "sibling_score": 0.5335777401924133, "answer_score": 0.3706928834319115, "sibling_qid": "MUM-2026-06-3429-Q010", "sibling_text": "safety valve lift difference", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": false }, { "answer_id": "MR-DS-PV-B-006", "score": 0.5303715467453003, "sibling_score": 0.5303715467453003, "answer_score": null, "sibling_qid": "KOC-2026-09-2180-Q009", "sibling_text": "full bore safety valve construction", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "6. Deck isolating valve, deck relief/safety devices, and cargo-tank pressure", "cross_family": false } ] }, { "qid": "KOL-2021-08-1619-Q006", "text": "Difference Between high lift & improved high lift safety v/v", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2021-08-1619", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.6971259117126465, "sibling_score": 0.6971259117126465, "answer_score": null, "sibling_qid": "KOL-2026-01-3900-Q004", "sibling_text": "diff between improved high lift and high lift", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-003", "score": 0.6865124106407166, "sibling_score": 0.6865124106407166, "answer_score": 0.33380301892757414, "sibling_qid": "MUM-2026-05-3246-Q016", "sibling_text": "difference between high lift and improved high lift", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "The accumulation test and the safety valve — required lift, how lift and capacity are verified, and why accumulation must stay inside the limit", "cross_family": false }, { "answer_id": "ERC-345-001", "score": 0.3493660718202591, "sibling_score": null, "answer_score": 0.3493660718202591, "sibling_qid": "", "sibling_text": "safeties and protective devices lead safety critical spring applied electrically released hoist holding brake holds the load on power loss with no operator action travel cross travel brakes and parking devices are maker class specific overload protection load limiter overload cut out load cell prevents lifting above swl", "sibling_family": "", "via": "answer_title", "answer_title": "Safeties and protective devices", "cross_family": false } ] }, { "qid": "KOL-2021-08-1621-Q003", "text": "Type of ship done", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2021-08-1621", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8606137037277222, "sibling_score": 0.8606137037277222, "answer_score": null, "sibling_qid": "MUM-2026-02-1280-Q001", "sibling_text": "type of ship done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "SOLAS12-BC-A-001", "score": 0.7239285707473755, "sibling_score": 0.7239285707473755, "answer_score": null, "sibling_qid": "MUM-2026-04-2958-Q001", "sibling_text": "ship done bulk carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "SOLAS definition and scope of a bulk carrier", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.718870997428894, "sibling_score": 0.718870997428894, "answer_score": 0.4640441209077835, "sibling_qid": "CHE-2026-05-0614-Q001", "sibling_text": "start from type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "KOL-2021-08-1621-Q004", "text": "Type of main engine", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOL-2021-08-1621", "tray": "review", "candidates": [ { "answer_id": "ENG-NOM-005", "score": 0.7817931771278381, "sibling_score": 0.7817931771278381, "answer_score": null, "sibling_qid": "MUM-2026-09-3880-Q001", "sibling_text": "main engine type", "sibling_family": "2-Stroke - Operations & General", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true }, { "answer_id": "CTRL-TL-002", "score": 0.7689267992973328, "sibling_score": 0.7689267992973328, "answer_score": null, "sibling_qid": "MUM-2026-03-1987-Q001", "sibling_text": "type of main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Function of a controller, and types used on board", "cross_family": false }, { "answer_id": "ETP-344-P03-001", "score": 0.7283318638801575, "sibling_score": 0.7283318638801575, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false } ] }, { "qid": "KOL-2021-08-1621-Q008", "text": "Locking of rudder", "family": "Steering Gear & Hydraulics", "subtopic": "Tiller / Rudder Stock", "tid": "KOL-2021-08-1621", "tray": "review", "candidates": [ { "answer_id": "STEER-055-A-004", "score": 0.7103675603866577, "sibling_score": 0.7103675603866577, "answer_score": null, "sibling_qid": "MUM-2026-07-3762-Q009", "sibling_text": "rudder locking", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Hydraulic faults — air, sluggish response, locking, leakage", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.5991333723068237, "sibling_score": 0.5991333723068237, "answer_score": null, "sibling_qid": "MUM-2026-05-3234-Q010", "sibling_text": "checks on rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "TRS-002", "score": 0.5892379879951477, "sibling_score": 0.5892379879951477, "answer_score": null, "sibling_qid": "MUM-2024-12-1098-Q005", "sibling_text": "how coupling for rudder is done", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false } ] }, { "qid": "KOL-2021-08-2477-Q004", "text": "SAFCON and SEQ ?", "family": "Surveys - Statutory", "subtopic": "Safety Construction / Cargo Safety Cert", "tid": "KOL-2021-08-2477", "tray": "new", "candidates": [ { "answer_id": "SGS-BF1-001", "score": 0.5789002180099487, "sibling_score": 0.5789002180099487, "answer_score": null, "sibling_qid": "KOC-2023-03-0152-Q005", "sibling_text": "safematic sequence", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Safematic steering gear system — how it is asked in the oral, and what SOLAS actually requires", "cross_family": true }, { "answer_id": "STG-055-C-001", "score": 0.5783541202545166, "sibling_score": 0.5783541202545166, "answer_score": null, "sibling_qid": "KOC-2021-09-0026-Q005", "sibling_text": "safematic sequence", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Safematic steering gear, redundancy and the single-failure criterion", "cross_family": true }, { "answer_id": "MR-DS-PV-B-003", "score": 0.4934726059436798, "sibling_score": 0.4934726059436798, "answer_score": null, "sibling_qid": "MUM-2026-03-0866-Q003", "sibling_text": "tell me what comes from sequence when ig is going to deck in safety aspects", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "3. Alarms, trips, valves, and abnormal conditions of the deck seal", "cross_family": true } ] }, { "qid": "KOL-2021-08-2477-Q006", "text": "2nd engr what will u check before seq survey of davit ?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Lifeboat / Davit / LSA", "tid": "KOL-2021-08-2477", "tray": "new", "candidates": [ { "answer_id": "SEQ-330-001", "score": 0.5990444421768188, "sibling_score": 0.5990444421768188, "answer_score": null, "sibling_qid": "MUM-2026-06-3625-Q004", "sibling_text": "seq survey what all checks to be done", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Safety Equipment survey — what it is, its scope, and what is checked", "cross_family": true }, { "answer_id": "SEQ-330-002", "score": 0.558560848236084, "sibling_score": 0.558560848236084, "answer_score": null, "sibling_qid": "KOC-2024-12-2058-Q003", "sibling_text": "explain seq survey preparations as a second engineer", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Preparing the ship for the Safety Equipment survey as Second Engineer", "cross_family": true }, { "answer_id": "OWS-ORB-003", "score": 0.5460597276687622, "sibling_score": 0.5460597276687622, "answer_score": null, "sibling_qid": "KOL-2020-02-1520-Q012", "sibling_text": "ows survey is due the next day surveyor will come and carry out the survey what checks you will carry out as a second engineer on the ows", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "3. OWS checks for survey / port testing as 2/E", "cross_family": true } ] }, { "qid": "KOL-2021-08-2478-Q001", "text": "Steering gear Electrical safety ?", "family": "Electrical - Motors & Starters", "subtopic": "Single Phasing", "tid": "KOL-2021-08-2478", "tray": "review", "candidates": [ { "answer_id": "SGM-ELEC-001", "score": 0.8348045945167542, "sibling_score": 0.8348045945167542, "answer_score": 0.5791965365409851, "sibling_qid": "MUM-2024-07-1436-Q006", "sibling_text": "steering gear motor safeties with respect to electrical", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What are the safeties, alarms and trips on the steering gear motor as per SOLAS — and how do you activate the safematic?", "cross_family": false }, { "answer_id": "SG-055-B-002", "score": 0.7971453666687012, "sibling_score": 0.7971453666687012, "answer_score": 0.6169511586427688, "sibling_qid": "KOC-2026-03-1732-Q006", "sibling_text": "steering gear electrical safeties", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Steering-gear alarms, trips and electrical / hydraulic safeties", "cross_family": true }, { "answer_id": "SGM-ELEC-002", "score": 0.7944543361663818, "sibling_score": 0.7944543361663818, "answer_score": null, "sibling_qid": "MUM-2026-05-3190-Q008", "sibling_text": "steering gear motor safeties", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What type of motor is the steering gear motor, how does it differ from other engine-room motors, and how do you order one?", "cross_family": false } ] }, { "qid": "KOL-2021-08-2479-Q002", "text": "EXi what principle? How the ckt works? How it works", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOL-2021-08-2479", "tray": "new", "candidates": [ { "answer_id": "OMD-003", "score": 0.4023591876029968, "sibling_score": 0.4023591876029968, "answer_score": null, "sibling_qid": "KOC-2025-12-1078-Q006", "sibling_text": "working principle", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Explain the OMD working principle, its types and their differences, the electrical side, and zero setting and calibration.", "cross_family": false }, { "answer_id": "EXD-EXI-A-002", "score": 0.4003814458847046, "sibling_score": 0.4003814458847046, "answer_score": null, "sibling_qid": "MUM-2022-07-1337-Q001", "sibling_text": "exi exd circuit and in detail", "sibling_family": "", "via": "sibling", "answer_title": "Ex d (flameproof / explosion-proof) — construction, shipboard applications and maintenance", "cross_family": false }, { "answer_id": "PID-CTRL-002", "score": 0.3824976980686188, "sibling_score": 0.3824976980686188, "answer_score": null, "sibling_qid": "KOL-2019-10-2342-Q002", "sibling_text": "integral ckt with example", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Proportional, integral and derivative actions", "cross_family": false } ] }, { "qid": "KOL-2021-08-2479-Q004", "text": "What is the function of resistor in that circuit?", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOL-2021-08-2479", "tray": "new", "candidates": [ { "answer_id": "AUC-P03-04", "score": 0.5757573246955872, "sibling_score": 0.5757573246955872, "answer_score": null, "sibling_qid": "MUM-2023-11-1415-Q003", "sibling_text": "sipart working resistor in transducer why", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Control-valve positioner — function and calibration of a pneumatic actuator/positioner", "cross_family": false }, { "answer_id": "SCR-306-B-007", "score": 0.5601977109909058, "sibling_score": 0.5601977109909058, "answer_score": 0.39022147953510283, "sibling_qid": "MUM-2026-05-3243-Q002", "sibling_text": "surge resistor", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "SCR snubber circuit and dv/dt protection", "cross_family": false }, { "answer_id": "NER-HV-P04-001", "score": 0.5551021099090576, "sibling_score": 0.5551021099090576, "answer_score": null, "sibling_qid": "KOC-2023-05-1257-Q007", "sibling_text": "neutral earth resistor", "sibling_family": "", "via": "sibling", "answer_title": "What an NER is, where it is used, and why it is fitted in HV systems", "cross_family": false } ] }, { "qid": "KOL-2021-08-2480-Q002", "text": "ICCP ?", "family": "Electrical - ICCP & Cathodic Protection", "subtopic": "ICCP", "tid": "KOL-2021-08-2480", "tray": "review", "candidates": [ { "answer_id": "ICCP-119-P01-001", "score": 0.7966793179512024, "sibling_score": 0.7966793179512024, "answer_score": 0.47619024515151975, "sibling_qid": "MUM-2023-06-1389-Q001", "sibling_text": "iccp", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP — purpose, principle and basic working", "cross_family": false }, { "answer_id": "ICCP-119-P01-002", "score": 0.4517800509929657, "sibling_score": null, "answer_score": 0.4517800509929657, "sibling_qid": "", "sibling_text": "iccp circuit control arrangement construction and main components", "sibling_family": "", "via": "answer_title", "answer_title": "ICCP circuit / control arrangement, construction and main components", "cross_family": false }, { "answer_id": "ICCP-119-P01-003", "score": 0.39591798186302185, "sibling_score": null, "answer_score": 0.39591798186302185, "sibling_qid": "", "sibling_text": "iccp values impressed current meaning anode cathode roles and materials", "sibling_family": "", "via": "answer_title", "answer_title": "ICCP values, impressed-current meaning, anode/cathode roles and materials", "cross_family": false } ] }, { "qid": "KOL-2021-08-2481-Q004", "text": "Alternator safeties?", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator Protection", "tid": "KOL-2021-08-2481", "tray": "review", "candidates": [ { "answer_id": "ALT-GEN-P01-001", "score": 0.7869666218757629, "sibling_score": 0.7869666218757629, "answer_score": 0.5417611986398697, "sibling_qid": "MUM-2026-05-3046-Q005", "sibling_text": "safeties for alternator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Alternator/generator safeties and protection trips", "cross_family": false }, { "answer_id": "ALT-MAINT-A-001", "score": 0.5207803964614868, "sibling_score": null, "answer_score": 0.5207803964614868, "sibling_qid": "", "sibling_text": "routine maintenance care of a ship s alternator make safe first permit to work isolate rack out and lock off the breaker immobilise the prime mover the set is engine driven a blackout dead bus auto start can crank it prove dead discharge the windings the space heater supply is separate it stays live after the alternator breaker is open isolate it independently before touching the windings", "sibling_family": "", "via": "answer_title", "answer_title": "Routine maintenance & care of a ship’s alternator", "cross_family": false }, { "answer_id": "ALT-MTN-B-001", "score": 0.5138325452804565, "sibling_score": null, "answer_score": 0.5138325452804565, "sibling_qid": "", "sibling_text": "routine onboard alternator maintenance checks clean air path dry low pressure air blow through cooler and filters clear keep winding temperature in band insulation resistance to earth on a megger trended over time investigate a falling trend do not wait for the alarm", "sibling_family": "", "via": "answer_title", "answer_title": "Routine onboard alternator maintenance checks", "cross_family": false } ] }, { "qid": "KOL-2021-08-3436-Q003", "text": "safety valve checks", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2021-08-3436", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P01-001", "score": 0.7656400799751282, "sibling_score": 0.7656400799751282, "answer_score": null, "sibling_qid": "MUM-2026-03-2589-Q003", "sibling_text": "checks on safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-003", "score": 0.6166587471961975, "sibling_score": 0.6166587471961975, "answer_score": 0.47784356176853177, "sibling_qid": "MUM-2023-03-1044-Q007", "sibling_text": "accumulation of pressure test y is it carried out a how do u know if ur safety valve is of proper size", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "The accumulation test and the safety valve — required lift, how lift and capacity are verified, and why accumulation must stay inside the limit", "cross_family": false }, { "answer_id": "ECON-EGB-004", "score": 0.6103065609931946, "sibling_score": 0.6103065609931946, "answer_score": null, "sibling_qid": "KOL-2026-09-4304-Q003", "sibling_text": "safety valve setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Safety-valve setting after overhaul & why set higher than the boiler", "cross_family": false } ] }, { "qid": "KOL-2021-08-3436-Q005", "text": "How to weld steel to aluminium? KEY ANS : Bimetallic transition insert , and another one by dipping steel into aluminium and coating.", "family": "Workshop & Welding", "subtopic": "Welding / NDT / Materials", "tid": "KOL-2021-08-3436", "tray": "review", "candidates": [ { "answer_id": "WELD-B-004", "score": 0.7068884968757629, "sibling_score": 0.7068884968757629, "answer_score": 0.5368473529815674, "sibling_qid": "MUM-2026-07-3807-Q011", "sibling_text": "how to join steel and aluminium", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Joining dissimilar metals — aluminium to steel, and explosive welding", "cross_family": false }, { "answer_id": "WELD-PATM-007", "score": 0.6782898306846619, "sibling_score": 0.6782898306846619, "answer_score": null, "sibling_qid": "KOL-2021-07-3418-Q002", "sibling_text": "what is cladding plasma welding and how steel is joint to aluminium", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Plasma spraying / coating / cladding", "cross_family": false }, { "answer_id": "WELD-PATM-003", "score": 0.6458142995834351, "sibling_score": 0.6458142995834351, "answer_score": null, "sibling_qid": "KOL-2018-05-3150-Q001", "sibling_text": "how do you weld steel with aluminium for superstructure what filler metal used for tig in this case", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "TIG welding – process, shielding gas, advantages, uses", "cross_family": false } ] }, { "qid": "KOL-2021-08-3437-Q007", "text": "Difficulties in aluminium welding", "family": "Workshop & Welding", "subtopic": "Welding / NDT / Materials", "tid": "KOL-2021-08-3437", "tray": "review", "candidates": [ { "answer_id": "WELD-B-001", "score": 0.8074917197227478, "sibling_score": 0.8074917197227478, "answer_score": 0.5139035761356353, "sibling_qid": "MUM-2021-06-2129-Q001", "sibling_text": "aluminium welding difficulties and procedures", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding & crack-repair of aluminium and cast iron, including metal stitching", "cross_family": false }, { "answer_id": "WBS-C-001", "score": 0.7672888040542603, "sibling_score": 0.7672888040542603, "answer_score": null, "sibling_qid": "KOL-2018-01-3111-Q001", "sibling_text": "alumunium welding diffuclties and how are they dealt with", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding, brazing and soldering — what they are, the shipboard processes, and workshop safety", "cross_family": false }, { "answer_id": "WELD-PATM-005", "score": 0.6891125440597534, "sibling_score": 0.6891125440597534, "answer_score": null, "sibling_qid": "KOL-2021-12-3501-Q003", "sibling_text": "aluminium welding tig welding and mig welding difference", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "TIG vs MIG – differences, uses, advantages", "cross_family": false } ] }, { "qid": "KOL-2021-08-3438-Q004", "text": "Types of welding, why aluminium not used ?", "family": "Workshop & Welding", "subtopic": "Welding / NDT / Materials", "tid": "KOL-2021-08-3438", "tray": "review", "candidates": [ { "answer_id": "WELD-B-001", "score": 0.6963773369789124, "sibling_score": 0.6963773369789124, "answer_score": 0.5131336867809295, "sibling_qid": "MUM-2021-06-2129-Q001", "sibling_text": "aluminium welding difficulties and procedures", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding & crack-repair of aluminium and cast iron, including metal stitching", "cross_family": false }, { "answer_id": "WELD-PATM-005", "score": 0.6818909049034119, "sibling_score": 0.6818909049034119, "answer_score": null, "sibling_qid": "KOL-2021-12-3501-Q003", "sibling_text": "aluminium welding tig welding and mig welding difference", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "TIG vs MIG – differences, uses, advantages", "cross_family": false }, { "answer_id": "WELD-B-004", "score": 0.6718133091926575, "sibling_score": 0.6718133091926575, "answer_score": 0.546635627746582, "sibling_qid": "KOL-2025-07-3831-Q003", "sibling_text": "aluminium welding with steel", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Joining dissimilar metals — aluminium to steel, and explosive welding", "cross_family": false } ] }, { "qid": "KOL-2021-08-3440-Q003", "text": "After decarb A/E showing unbalance in power how to adjust.", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Decarb / Balancing / High Exhaust Temperature", "tid": "KOL-2021-08-3440", "tray": "new", "candidates": [ { "answer_id": "MIP-264-005", "score": 0.5951478481292725, "sibling_score": 0.5951478481292725, "answer_score": 0.4892105251550674, "sibling_qid": "MUM-2026-06-3663-Q008", "sibling_text": "hot to calculate the engine power if unbalance in power how will you adjust", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Power balancing using MIP/MEP and indicator-card data", "cross_family": true }, { "answer_id": "IND-CARD-005", "score": 0.5850235223770142, "sibling_score": 0.5850235223770142, "answer_score": 0.4838486075401306, "sibling_qid": "MUM-2022-09-1022-Q002", "sibling_text": "power balancing of main engine what to do if 1 unit developing less power power card draw card basically how to find out fault with these curves", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "How is main-engine power balancing carried out, and how do card curves diagnose a low-power unit?", "cross_family": true }, { "answer_id": "PERF-470-005", "score": 0.5777602195739746, "sibling_score": 0.5777602195739746, "answer_score": null, "sibling_qid": "KOL-2022-09-3567-Q005", "sibling_text": "power balancing of m e how to find by checking exhaust temp diff in exhaust temp as normally", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main-engine power balancing — procedure", "cross_family": true } ] }, { "qid": "KOL-2021-08-3442-Q006", "text": "Oil Change and also replenish in AC Compressor.", "family": "Refrigeration & AC", "subtopic": "Refrigeration Lubricating Oil / Flock Point / Oil Charging", "tid": "KOL-2021-08-3442", "tray": "review", "candidates": [ { "answer_id": "REEF-COMP-004", "score": 0.7927828431129456, "sibling_score": 0.7927828431129456, "answer_score": 0.5555356115102768, "sibling_qid": "MUM-2025-09-2835-Q005", "sibling_text": "ac compressor oil recharge", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Charging, replenishing and draining compressor lube oil — including with no charging pump", "cross_family": false }, { "answer_id": "REEF-COMP-008", "score": 0.6887038350105286, "sibling_score": 0.6887038350105286, "answer_score": null, "sibling_qid": "KOL-2020-02-3327-Q004", "sibling_text": "in refer compressors evaporator oil found how to remove onboard", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Valves, clearances, oil carry-over, refrigerant-in-oil, frosting, tandem valves, cooling — fault checks", "cross_family": false }, { "answer_id": "REEF-COMP-002", "score": 0.6641992926597595, "sibling_score": 0.6641992926597595, "answer_score": null, "sibling_qid": "KOC-2024-04-1348-Q005", "sibling_text": "explain how ac compressor lub oil low pressure trip activating", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Lube-oil low-pressure / differential-pressure trip — how it works, tests and sets", "cross_family": false } ] }, { "qid": "KOL-2021-08-3442-Q007", "text": "How to insert piston (assembled with Piston Rings) in the cylinder head of the air compressor?", "family": "Air Compressor", "subtopic": "Reciprocating Compressor", "tid": "KOL-2021-08-3442", "tray": "new", "candidates": [ { "answer_id": "AE-CRP-001", "score": 0.6066663861274719, "sibling_score": 0.6066663861274719, "answer_score": 0.5183725416660309, "sibling_qid": "KOL-2018-04-3137-Q003", "sibling_text": "how piston fitted inside cylinder in ae ring guide tool draw it", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE piston overhaul — removal, ring handling and refit", "cross_family": true }, { "answer_id": "PRING-CLR-A-001", "score": 0.5985274314880371, "sibling_score": 0.5985274314880371, "answer_score": null, "sibling_qid": "MUM-2026-02-1255-Q015", "sibling_text": "pop rings in piston", "sibling_family": "2-Stroke - 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Fn Passed", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2021-08-3445", "tray": "new", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-003", "score": 0.6152036786079407, "sibling_score": 0.6152036786079407, "answer_score": null, "sibling_qid": "KOL-2026-02-2040-Q006", "sibling_text": "boiler safety v v setting boiler accumulation pr test", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "The accumulation test and the safety valve — required lift, how lift and capacity are verified, and why accumulation must stay inside the limit", "cross_family": false }, { "answer_id": "BLR-SURV-P02-008", "score": 0.5756744146347046, "sibling_score": 0.5756744146347046, "answer_score": null, "sibling_qid": "MUM-2026-05-3078-Q008", "sibling_text": "safeties on boiler", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.5648662447929382, "sibling_score": 0.5648662447929382, "answer_score": null, "sibling_qid": "MUM-2026-05-3267-Q005", "sibling_text": "boiler safety valve why you required easing gear", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOL-2021-08-3449-Q004", "text": "steam valve setting procedure ( decider question by Biswas )", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2021-08-3449", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-001", "score": 0.7194770574569702, "sibling_score": 0.7194770574569702, "answer_score": null, "sibling_qid": "KOC-2026-05-0003-Q005", "sibling_text": "boiler safety valve setting procedure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.6985563635826111, "sibling_score": 0.6985563635826111, "answer_score": null, "sibling_qid": "CHE-2026-05-0568-Q013", "sibling_text": "boiler safety valve how you confirm the proper setting of safety valve engineer observation", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.6963933706283569, "sibling_score": 0.6963933706283569, "answer_score": null, "sibling_qid": "KOL-2026-01-3904-Q003", "sibling_text": "setting of boiler safety valve cross questions in high lift safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOL-2021-08-3453-Q003", "text": "ae piston seized. Removal", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE Conrod / Piston", "tid": "KOL-2021-08-3453", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-002", "score": 0.8592907786369324, "sibling_score": 0.8592907786369324, "answer_score": 0.6079062759876251, "sibling_qid": "KOL-2016-11-3016-Q002", "sibling_text": "removal of seized piston from ae", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Seized piston in an AE liner — actions and safe removal", "cross_family": false }, { "answer_id": "AE-CRP-001", "score": 0.7293410897254944, "sibling_score": 0.7293410897254944, "answer_score": 0.5680668324232101, "sibling_qid": "MUM-2026-03-2951-Q006", "sibling_text": "how will you individually take out the piston only with motorman of ae", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE piston overhaul — removal, ring handling and refit", "cross_family": false }, { "answer_id": "PIST-CSI-C-004", "score": 0.6852600574493408, "sibling_score": 0.6852600574493408, "answer_score": 0.5200445532798766, "sibling_qid": "KOL-2026-02-3913-Q002", "sibling_text": "piston seized how to proceed", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston seizure, stuck piston and emergency running to port", "cross_family": true } ] }, { "qid": "KOL-2021-08-3454-Q002", "text": "A/E piston seized. How to take it out. (By gas cutting the seized area and removing the gudgeon pin, guys please dont cut con rod or else bhowmik sir will cut your throat)", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE Conrod / Piston", "tid": "KOL-2021-08-3454", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-002", "score": 0.775753378868103, "sibling_score": 0.775753378868103, "answer_score": 0.5693935692310333, "sibling_qid": "KOL-2018-03-1361-Q006", "sibling_text": "ae piston seized how to remove", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Seized piston in an AE liner — actions and safe removal", "cross_family": false }, { "answer_id": "AE-CRP-001", "score": 0.7330684065818787, "sibling_score": 0.7330684065818787, "answer_score": 0.5693473637104034, "sibling_qid": "MUM-2026-03-2951-Q006", "sibling_text": "how will you individually take out the piston only with motorman of ae", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE piston overhaul — removal, ring handling and refit", "cross_family": false }, { "answer_id": "PIST-CSI-C-003", "score": 0.6657443642616272, "sibling_score": 0.6657443642616272, "answer_score": null, "sibling_qid": "KOC-2026-01-1993-Q008", "sibling_text": "precautions before removing piston", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston removal, lifting precautions and overhaul / decarbonising", "cross_family": true } ] }, { "qid": "KOL-2021-08-3454-Q005", "text": "foundation bolts inspection in details", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Holding Down Bolts", "tid": "KOL-2021-08-3454", "tray": "review", "candidates": [ { "answer_id": "FB-COUP-001", "score": 0.6986008286476135, "sibling_score": 0.6986008286476135, "answer_score": 0.4349044471979141, "sibling_qid": "MUM-2026-02-1255-Q012", "sibling_text": "types of foundation bolts", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What fitted bolts are, what they do, and where they sit onboard", "cross_family": false }, { "answer_id": "CRB-002", "score": 0.5983918309211731, "sibling_score": 0.5983918309211731, "answer_score": 0.45250768661499025, "sibling_qid": "MUM-2025-10-2863-Q002", "sibling_text": "con rod and bolts construction and checks", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What checks and tests are carried out on connecting rod bolts? Why NDT, why check elongation, what is the maximum limit, and which section tends to shear off?", "cross_family": true }, { "answer_id": "CHK-330-005", "score": 0.4918817818164825, "sibling_score": null, "answer_score": 0.4918817818164825, "sibling_qid": "", "sibling_text": "chocks and holding down bolts interface and the checks you perform bolt path bedplate flange chock top plate long sleeve bolts hydraulically tensioned per maker bolts take tension only shear and axial loads belong to side and end chocks", "sibling_family": "", "via": "answer_title", "answer_title": "Chocks and holding-down bolts — interface, and the checks you perform", "cross_family": false } ] }, { "qid": "KOL-2021-09-0551-Q005", "text": "Forward perpendicular", "family": "Ship Construction", "subtopic": "Principal Dimensions / Ship Dimensions Diagram", "tid": "KOL-2021-09-0551", "tray": "new", "candidates": [ { "answer_id": "BSBH-420-001", "score": 0.5950894355773926, "sibling_score": 0.5950894355773926, 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"cross_family": false } ] }, { "qid": "KOL-2021-09-0554-Q005", "text": "Damage stability criteria?", "family": "SOLAS", "subtopic": "Damage Stability", "tid": "KOL-2021-09-0554", "tray": "review", "candidates": [ { "answer_id": "DAM-STAB-P03-002", "score": 0.8114815354347229, "sibling_score": 0.8114815354347229, "answer_score": null, "sibling_qid": "KOC-2024-12-0485-Q011", "sibling_text": "damage stability criteria", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "General cargo-ship damage stability criteria and requirements", "cross_family": false }, { "answer_id": "DS-049-P02-001", "score": 0.8080188632011414, "sibling_score": 0.8080188632011414, "answer_score": 0.4984020799398422, "sibling_qid": "KOC-2024-09-0405-Q008", "sibling_text": "damage stability intact stability criteria", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Difference between intact stability (static / dynamic) and damage stability criteria", "cross_family": false }, { "answer_id": "DAM-STAB-P03-001", "score": 0.7934430241584778, "sibling_score": 0.7934430241584778, "answer_score": 0.5033734798431396, "sibling_qid": "KOL-2018-05-0175-Q001", "sibling_text": "intact stability damage stability criteria", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Intact, static, dynamic and damage stability: difference and criteria", "cross_family": false } ] }, { "qid": "KOL-2021-09-0554-Q006", "text": "MLC certificate?tell the important points in mlc, as a 2 nd engineer)", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOL-2021-09-0554", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-006", "score": 0.6306799650192261, "sibling_score": 0.6306799650192261, "answer_score": 0.3725453346967697, "sibling_qid": "MUM-2026-07-3680-Q005", "sibling_text": "what is mlc certificate under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false }, { "answer_id": "ISM-2E-C-001", "score": 0.5128782391548157, "sibling_score": 0.5128782391548157, "answer_score": null, "sibling_qid": "KOC-2024-07-0360-Q010", "sibling_text": "ism audit survey as a 2nd engineer need explanation for each section like in ecr machinery related lsa and ffa expects doc smc certificate internal paul sir", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM audit / survey preparation as Second Engineer — beyond the paperwork", "cross_family": true }, { "answer_id": "STEEL-GR-001", "score": 0.5050317645072937, "sibling_score": 0.5050317645072937, "answer_score": null, "sibling_qid": "KOL-2018-06-0188-Q001", "sibling_text": "materials used in ship building 2 grades of steel 3 tensile test 4 additional safety measures in bulk carrier 5 position of nozzle in co2 flooding in cargo hold 6 what you will do as a second engineer under mlc convention fun 6", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Materials and steel grades for ship and hull construction", "cross_family": true } ] }, { "qid": "KOL-2021-09-1624-Q002", "text": "Aluminium welding procedure ?", "family": "Workshop & Welding", "subtopic": "Welding / NDT / Materials", "tid": "KOL-2021-09-1624", "tray": "review", "candidates": [ { "answer_id": "WELD-B-001", "score": 0.7765553593635559, "sibling_score": 0.7765553593635559, "answer_score": 0.5472336649894715, "sibling_qid": "MUM-2021-06-2129-Q001", "sibling_text": "aluminium welding difficulties and procedures", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding & crack-repair of aluminium and cast iron, including metal stitching", "cross_family": false }, { "answer_id": "WELD-B-004", "score": 0.7115719318389893, "sibling_score": 0.7115719318389893, "answer_score": 0.5262331545352935, "sibling_qid": "KOL-2025-07-3831-Q003", "sibling_text": "aluminium welding with steel", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Joining dissimilar metals — aluminium to steel, and explosive welding", "cross_family": false }, { "answer_id": "WELD-PATM-005", "score": 0.7006591558456421, "sibling_score": 0.7006591558456421, "answer_score": null, "sibling_qid": "KOL-2021-12-3501-Q003", "sibling_text": "aluminium welding tig welding and mig welding difference", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "TIG vs MIG – differences, uses, advantages", "cross_family": false } ] }, { "qid": "KOL-2021-09-1625-Q005", "text": "MAC valve plates breakage reason", "family": "Air Compressor", "subtopic": "Reciprocating Compressor", "tid": "KOL-2021-09-1625", "tray": "new", "candidates": [ { "answer_id": "MAC-598-001", "score": 0.5972816348075867, "sibling_score": 0.5972816348075867, "answer_score": null, "sibling_qid": "KOC-2025-12-1084-Q004", "sibling_text": "mac valve parts explain", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "The main air compressor valve — arrangement, parts, and why the construction is so complex", "cross_family": false }, { "answer_id": "ICAC-299-009", "score": 0.5135328769683838, "sibling_score": 0.5135328769683838, "answer_score": null, "sibling_qid": "KOL-2019-10-3276-Q004", "sibling_text": "mac intercooler tubes burst during manoeuvring actions", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Intercooler tube burst during manoeuvring: immediate actions", "cross_family": false }, { "answer_id": "WTGS-325-007", "score": 0.4772026538848877, "sibling_score": 0.4772026538848877, "answer_score": null, "sibling_qid": "KOL-2026-02-3911-Q006", "sibling_text": "air compressor valve plate has scratch how to do lapping", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Valve-seat lapping tools and workshop valve checking", "cross_family": false } ] }, { "qid": "KOL-2021-09-2487-Q004", "text": "Salient pole rotor construction ?", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator / Generator", "tid": "KOL-2021-09-2487", "tray": "review", "candidates": [ { "answer_id": "SYNC-ASYNC-A-002", "score": 0.7154124975204468, "sibling_score": 0.7154124975204468, "answer_score": 0.527765890955925, "sibling_qid": "KOL-2022-09-4012-Q003", "sibling_text": "salient rotor construction", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Construction and main parts of a synchronous motor", "cross_family": true }, { "answer_id": "ROT-STAT-A-002", "score": 0.6458742618560791, "sibling_score": 0.6458742618560791, "answer_score": 0.5071086287498474, "sibling_qid": "KOL-2023-07-2668-Q002", "sibling_text": "im rotor construction", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Rotor and stator construction of a three-phase induction motor", "cross_family": true }, { "answer_id": "ROT-STAT-A-001", "score": 0.6430699825286865, "sibling_score": 0.6430699825286865, "answer_score": 0.5170257925987244, "sibling_qid": "KOL-2024-04-2710-Q002", "sibling_text": "construction of squirrel cage rotor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Squirrel-cage rotor — construction, parts and materials", "cross_family": true } ] }, { "qid": "KOL-2021-09-2490-Q006", "text": "Alternator rotor construction", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator / Generator", "tid": "KOL-2021-09-2490", "tray": "review", "candidates": [ { "answer_id": "ROTSTAT-C-003", "score": 0.7462159991264343, "sibling_score": 0.7462159991264343, "answer_score": null, "sibling_qid": "KOL-2026-01-2951-Q001", "sibling_text": "alternator stator construction", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Stator construction, winding & types", "cross_family": false }, { "answer_id": "ALT-GEN-P03-005", "score": 0.7374630570411682, "sibling_score": 0.7374630570411682, "answer_score": 0.5597652405500412, "sibling_qid": "KOC-2023-02-1231-Q004", "sibling_text": "alternator construction", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Alternator construction, parts, and direct connection", "cross_family": false }, { "answer_id": "BRUSHALT-A-001", "score": 0.7025303244590759, "sibling_score": 0.7025303244590759, "answer_score": null, "sibling_qid": "MUM-2026-06-3522-Q007", "sibling_text": "brushless alternators construction", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01 · Working principle of the brushless alternator / brushless excitation systemHigh", "cross_family": false } ] }, { "qid": "KOL-2021-09-2491-Q006", "text": "ICCP? factors influencing the same ?", "family": "Electrical - ICCP & Cathodic Protection", "subtopic": "ICCP", "tid": "KOL-2021-09-2491", "tray": "new", "candidates": [ { "answer_id": "ICCP-119-P01-001", "score": 0.5620086789131165, "sibling_score": 0.5620086789131165, "answer_score": 0.3275068074464798, "sibling_qid": "MUM-2025-09-1642-Q004", "sibling_text": "function of iccp", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP — purpose, principle and basic working", "cross_family": false }, { "answer_id": "ICCP-119-P01-003", "score": 0.5505161881446838, "sibling_score": 0.5505161881446838, "answer_score": 0.30036889165639874, "sibling_qid": "MUM-2025-08-1583-Q006", "sibling_text": "iccp and what parameters u note", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP values, impressed-current meaning, anode/cathode roles and materials", "cross_family": false }, { "answer_id": "FLP-142-P02-005", "score": 0.31021150350570675, "sibling_score": null, "answer_score": 0.31021150350570675, "sibling_qid": "", "sibling_text": "factor of subdivision how it is fixed length and criterion numeral factor bounded by factor a cargo and factor b passenger the passenger curve is lower fixed by ship length l and the criterion of service numeral criterion numeral", "sibling_family": "", "via": "answer_title", "answer_title": "Factor of subdivision — how it is fixed (length and criterion numeral)", "cross_family": false } ] }, { "qid": "KOL-2021-09-3456-Q002", "text": "Difference between Semi and Fully built crankshafts? How semi built is manufactured? where both are used? Advantages of semi bulit", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft Material", "tid": "KOL-2021-09-3456", "tray": "review", "candidates": [ { "answer_id": "CRANK-217-001", "score": 0.736940324306488, "sibling_score": 0.736940324306488, "answer_score": 0.5862571656703949, "sibling_qid": "MUM-2026-01-1240-Q003", "sibling_text": "crankshaft type explain semi built", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankshaft types and how the type is identified", "cross_family": false }, { "answer_id": "CRANK-217-002", "score": 0.6988191604614258, "sibling_score": 0.6988191604614258, "answer_score": 0.5742135345935822, "sibling_qid": "MUM-2026-05-3163-Q008", "sibling_text": "how is semi built crankshaft constructed some cross questions like advantages over fully built and where these type of crankshaft is seen", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Semi-built crankshaft: construction, fitting and comparison", "cross_family": false }, { "answer_id": "CRANK-217-004", "score": 0.6151553988456726, "sibling_score": 0.6151553988456726, "answer_score": null, "sibling_qid": "MUM-2026-02-2570-Q003", "sibling_text": "semi built crank shaft slippage", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankshaft slippage, tell-tale marks and action if found", "cross_family": false } ] }, { "qid": "KOL-2021-09-3457-Q003", "text": "Control air dryer function. How it works?", "family": "Air Compressor", "subtopic": "Reciprocating Compressor", "tid": "KOL-2021-09-3457", "tray": "new", "candidates": [ { "answer_id": "ICAC-299-004", "score": 0.5366195440292358, "sibling_score": 0.5366195440292358, "answer_score": null, "sibling_qid": "KOL-2018-09-3189-Q003", "sibling_text": "air line intercooler and aftercooler purpose and arrangements to remove moisture from compressed air system", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Moisture removal: cooler, separator and drains", "cross_family": false }, { "answer_id": "UNL-330-005", "score": 0.5030769109725952, "sibling_score": 0.5030769109725952, "answer_score": null, "sibling_qid": "KOL-2022-04-1672-Q003", "sibling_text": "fn of unloader in mac how motor prevented from high starting current safety in air compressor function of after cooler", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "State the function of the unloader, and how the motor is protected from high starting current.", "cross_family": false }, { "answer_id": "ICAC-299-001", "score": 0.4974716901779175, "sibling_score": 0.4974716901779175, "answer_score": null, "sibling_qid": "CHE-2026-02-0334-Q005", "sibling_text": "main air compressor intercooler and aftercooler function", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Purpose and function of the intercooler and aftercooler", "cross_family": false } ] }, { "qid": "KOL-2021-09-3458-Q003", "text": "Iccp. What is important parameter to monitor ie current. On what current depends.", "family": "Electrical - ICCP & Cathodic Protection", "subtopic": "ICCP", "tid": "KOL-2021-09-3458", "tray": "new", "candidates": [ { "answer_id": "ICCP-119-P01-001", "score": 0.6477747559547424, "sibling_score": 0.6477747559547424, "answer_score": null, "sibling_qid": "KOC-2024-02-0296-Q013", "sibling_text": "iccp log contents reason for gradual increase of iccp current", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP — purpose, principle and basic working", "cross_family": false }, { "answer_id": "ICCP-119-P01-003", "score": 0.6441181898117065, "sibling_score": 0.6441181898117065, "answer_score": 0.40805883705616, "sibling_qid": "MUM-2022-09-1356-Q005", "sibling_text": "iccp values means current some more not remember", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP values, impressed-current meaning, anode/cathode roles and materials", "cross_family": false }, { "answer_id": "SAC-ANODE-002", "score": 0.5557383894920349, "sibling_score": 0.5557383894920349, "answer_score": null, "sibling_qid": "KOL-2019-02-2261-Q003", "sibling_text": "iccp system difference between iccp and sacrificial anode system things to check on iccp value of voltage and current", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "Explain sacrificial-anode protection and compare it with ICCP.", "cross_family": false } ] }, { "qid": "KOL-2021-09-3460-Q002", "text": "Boiler shell construction", "family": "Boilers - Safety & Survey", "subtopic": "Hydrostatic Test", "tid": "KOL-2021-09-3460", "tray": "new", "candidates": [ { "answer_id": "BLR-SURV-P02-004", "score": 0.6396403312683105, "sibling_score": 0.6396403312683105, "answer_score": null, "sibling_qid": "KOL-2018-07-3163-Q002", "sibling_text": "boiler shell pr test", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "BLR-DRUM-006", "score": 0.6343872547149658, "sibling_score": 0.6343872547149658, "answer_score": 0.515915846824646, "sibling_qid": "KOL-2021-08-1612-Q004", "sibling_text": "shell construction of chocran boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Cochran boiler — shell construction", "cross_family": true }, { "answer_id": "BLR-DRUM-002", "score": 0.5856124758720398, "sibling_score": 0.5856124758720398, "answer_score": null, "sibling_qid": "KOL-2025-07-1812-Q007", "sibling_text": "boiler drum construction", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Steam-drum construction, material and plate manufacture, and construction-stage tests", "cross_family": true } ] }, { "qid": "KOL-2021-09-3463-Q003", "text": "boiler safety valve testing and overhaul.how to check spindle trueness", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2021-09-3463", "tray": "new", "candidates": [ { "answer_id": "BLR-SURV-P01-001", "score": 0.639500617980957, "sibling_score": 0.639500617980957, "answer_score": null, "sibling_qid": "KOL-2026-01-3900-Q005", "sibling_text": "check on safety valve during overhaul", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-003", "score": 0.6270751357078552, "sibling_score": 0.6270751357078552, "answer_score": null, "sibling_qid": "MUM-2026-02-2575-Q001", "sibling_text": "can we test boiler safety valve out of place", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "The accumulation test and the safety valve — required lift, how lift and capacity are verified, and why accumulation must stay inside the limit", "cross_family": false }, { "answer_id": "EXHV-297-004", "score": 0.6039450168609619, "sibling_score": 0.6039450168609619, "answer_score": 0.5032223999500275, "sibling_qid": "MUM-2023-06-2177-Q006", "sibling_text": "exhaust valve spindle checks during overhaul", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Checks, tests & overhaul points — before and after fitting", "cross_family": true } ] }, { "qid": "KOL-2021-10-0556-Q004", "text": "what is margin line", "family": "SOLAS", "subtopic": "Margin Line / Subdivision", "tid": "KOL-2021-10-0556", "tray": "review", "candidates": [ { "answer_id": "MARGIN-LINE-001", "score": 0.6777704358100891, "sibling_score": 0.6777704358100891, "answer_score": 0.4313727140426636, "sibling_qid": "KOC-2026-08-2118-Q008", "sibling_text": "margin line explain", "sibling_family": "Ship Construction & Naval Architecture", "via": "sibling", "answer_title": "What is the margin line, and what is its purpose?", "cross_family": true }, { "answer_id": "MARGIN-LINE-002", "score": 0.4459591180086136, "sibling_score": null, "answer_score": 0.4459591180086136, "sibling_qid": "", "sibling_text": "why is the margin line imaginary and not permanently marked it is adesign calculation referenceused in subdivision and damage stability work not an operational limit the crew operate to themarkedlines deck line plimsoll load line marks draught marks intact loading", "sibling_family": "", "via": "answer_title", "answer_title": "Why is the margin line imaginary, and not permanently marked?", "cross_family": false }, { "answer_id": "MARGIN-LINE-006", "score": 0.415305757522583, "sibling_score": null, "answer_score": 0.415305757522583, "sibling_qid": "", "sibling_text": "handling ambiguous or compound prompts margin line bare prompts imaginary line marpol line a mishearing of margin line almost always mean the margin line declarethe reading answer andoffer to redirect core fact to deliver 76 mm below the bulkhead deck at side damaged condition limit waterline unmarked calculation line", "sibling_family": "", "via": "answer_title", "answer_title": "Handling ambiguous or compound prompts (margin line)", "cross_family": false } ] }, { "qid": "KOL-2021-10-0557-Q003", "text": "Ism code objective and detail certificates", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOL-2021-10-0557", "tray": "review", "candidates": [ { "answer_id": "ISM-SMC-B-001", "score": 0.6712774634361267, "sibling_score": 0.6712774634361267, "answer_score": null, "sibling_qid": "MUM-2023-09-0126-Q002S7", "sibling_text": "ism code certificates doc smc all details", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "SMC — purpose, contents, issue and validity", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.6450428366661072, "sibling_score": 0.6450428366661072, "answer_score": null, "sibling_qid": "MUM-2025-11-0579-Q001", "sibling_text": "ism code objective", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "ISM-SMCDOC-A-001", "score": 0.6437653303146362, "sibling_score": 0.6437653303146362, "answer_score": 0.3906859666109085, "sibling_qid": "KOL-2019-12-0371-Q001", "sibling_text": "ism full details and certificate", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM certificates: the DOC and SMC family", "cross_family": false } ] }, { "qid": "KOL-2021-10-0558-Q001", "text": "bow flare", "family": "", "subtopic": "Bulbous Bow", "tid": "KOL-2021-10-0558", "tray": "new", "candidates": [ { "answer_id": "DRG-B-009", "score": 0.48217612504959106, "sibling_score": 0.48217612504959106, "answer_score": null, "sibling_qid": "KOL-2020-09-0422-Q008", "sibling_text": "bowsing tackle", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Bowsing tackle and tricing pendant", "cross_family": false }, { "answer_id": "PIPEFAB-012", "score": 0.4725119173526764, "sibling_score": 0.4725119173526764, "answer_score": null, "sibling_qid": "KOL-2018-04-3137-Q004", "sibling_text": "flaring tool", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "What is the purpose of a flaring tool?", "cross_family": false }, { "answer_id": "PAR-ROLL-003", "score": 0.4720776677131653, "sibling_score": 0.4720776677131653, "answer_score": null, "sibling_qid": "KOL-2018-04-0173-Q003", "sibling_text": "parametric rolling and effect of large flare", "sibling_family": "", "via": "sibling", "answer_title": "03. Why container / car-carrier / Ro-Ro ships, and why not bulk carriers", "cross_family": false } ] }, { "qid": "KOL-2021-10-0558-Q007", "text": "safety valve setting procedure", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2021-10-0558", "tray": "review", "candidates": [ { "answer_id": "ECON-EGB-004", "score": 0.8016847968101501, "sibling_score": 0.8016847968101501, "answer_score": 0.5826859652996063, "sibling_qid": "CHE-2026-05-0601-Q010", "sibling_text": "safety valve setting procedure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Safety-valve setting after overhaul & why set higher than the boiler", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.7610485553741455, "sibling_score": 0.7610485553741455, "answer_score": null, "sibling_qid": "MUM-2026-02-1255-Q006", "sibling_text": "setting of safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.7364786863327026, "sibling_score": 0.7364786863327026, "answer_score": null, "sibling_qid": "KOC-2026-09-2205-Q019", "sibling_text": "setting safety valve infront of surveyor", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false } ] }, { "qid": "KOL-2021-10-0560-Q007", "text": "As per Rao request- semi balance rudder,how it is attached to ship, name everything!!", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2021-10-0560", "tray": "review", "candidates": [ { "answer_id": "TRS-002", "score": 0.6505263447761536, "sibling_score": 0.6505263447761536, "answer_score": 0.46602320671081543, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "TRS-001", "score": 0.643831729888916, "sibling_score": 0.643831729888916, "answer_score": null, "sibling_qid": "KOL-2019-05-3236-Q005", "sibling_text": "rudder stock twisted how will you balance it how to find changed mishsip position", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "The rudder stock is twisted — how do you proceed, recover the true midship datum, and what regulations let you proceed to the next port?", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.6405698657035828, "sibling_score": 0.6405698657035828, "answer_score": null, "sibling_qid": "MUM-2026-06-3584-Q005", "sibling_text": "what takes weight of rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false } ] }, { "qid": "KOL-2021-10-0561-Q001", "text": "Type of ship,detail,type of cargo carried", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2021-10-0561", "tray": "review", "candidates": [ { "answer_id": "SOLAS12-BC-A-001", "score": 0.792572021484375, "sibling_score": 0.792572021484375, "answer_score": 0.5446402788162231, "sibling_qid": "MUM-2026-06-3382-Q001", "sibling_text": "type of ship sailed bulk carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "SOLAS definition and scope of a bulk carrier", "cross_family": false }, { "answer_id": "DB-TORBOX-B-003", "score": 0.7660122513771057, "sibling_score": 0.7660122513771057, "answer_score": null, "sibling_qid": "CHE-2026-04-0150-Q001", "sibling_text": "type of ship sailed container", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "What is a torsion box — definition and construction", "cross_family": false }, { "answer_id": "COT-01", "score": 0.7482057213783264, "sibling_score": 0.7482057213783264, "answer_score": null, "sibling_qid": "KOC-2026-04-0892-Q003", "sibling_text": "type of ship sailed tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Oil-tanker types, definitions and cargo capability", "cross_family": false } ] }, { "qid": "KOL-2021-10-0561-Q004", "text": "Muster list detail", "family": "ISM Code", "subtopic": "SMS / Functional Requirements", "tid": "KOL-2021-10-0561", "tray": "new", "candidates": [ { "answer_id": "ISM-ELEM-003", "score": 0.6130329966545105, "sibling_score": 0.6130329966545105, "answer_score": null, "sibling_qid": "MUM-2026-09-3889-Q004", "sibling_text": "muster list which chapter and it s content", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": false }, { "answer_id": "MOB-MKR-001", "score": 0.4657919406890869, "sibling_score": 0.4657919406890869, "answer_score": null, "sibling_qid": "KOL-2018-12-0238-Q024", "sibling_text": "mob marker full details", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What is the MOB marker, what is it for, and what does it consist of? Give the full details.", "cross_family": true }, { "answer_id": "MGPS-001", "score": 0.45039182901382446, "sibling_score": 0.45039182901382446, "answer_score": null, "sibling_qid": "KOL-2018-08-0204-Q003", "sibling_text": "mgps details", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "Explain the MGPS — purpose, working principle, layout, and how it prevents marine growth", "cross_family": true } ] }, { "qid": "KOL-2021-10-0562-Q002", "text": "Type of ship n all related to Dp system as I sailed on dp vessel", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2021-10-0562", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.6871047019958496, "sibling_score": 0.6871047019958496, "answer_score": null, "sibling_qid": "MUM-2026-02-1280-Q001", "sibling_text": "type of ship done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "COT-01", "score": 0.668042004108429, "sibling_score": 0.668042004108429, "answer_score": null, "sibling_qid": "KOC-2026-04-0892-Q003", "sibling_text": "type of ship sailed tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Oil-tanker types, definitions and cargo capability", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.6667774319648743, "sibling_score": 0.6667774319648743, "answer_score": 0.4665035009384155, "sibling_qid": "CHE-2026-02-0109-Q001", "sibling_text": "type of ship explain what type is your vessel explain their type and difference", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "KOL-2021-10-0562-Q006", "text": "All about Shore reception facility. It is under which body.", "family": "MARPOL - General & Compliance", "subtopic": "Port Reception Facilities", "tid": "KOL-2021-10-0562", "tray": "new", "candidates": [ { "answer_id": "MARPOL-OV-005", "score": 0.5887044668197632, "sibling_score": 0.5887044668197632, "answer_score": 0.42942453324794766, "sibling_qid": "KOL-2025-09-1048-Q014", "sibling_text": "as per marpol where reception facilities are provides", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Port reception facilities", "cross_family": false }, { "answer_id": "SHORE-P01-002", "score": 0.5123946070671082, "sibling_score": 0.5123946070671082, "answer_score": null, "sibling_qid": "KOC-2025-12-1661-Q007", "sibling_text": "lloyds regulation for shore connection", "sibling_family": "", "via": "sibling", "answer_title": "Shore‑connection requirements — the connection box and the rules", "cross_family": false }, { "answer_id": "ISC-329-002", "score": 0.5122379064559937, "sibling_score": 0.5122379064559937, "answer_score": null, "sibling_qid": "KOC-2023-03-0169-Q006", "sibling_text": "international shore connection how it is used", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "How is the international shore connection connected and used when taking fire-fighting assistance from shore or another ship?", "cross_family": true } ] }, { "qid": "KOL-2021-10-0563-Q007", "text": "how medical standars corelated with shipping not accepted WHO, STCW", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOL-2021-10-0563", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-008", "score": 0.5696811079978943, "sibling_score": 0.5696811079978943, "answer_score": 0.4747022449970245, "sibling_qid": "KOC-2023-12-0264-Q002", "sibling_text": "mlc medical certificate requirement can u join ship with expired medical certificate how long is validity of such certificate", "sibling_family": "MLC", "via": "sibling", "answer_title": "Medical certificate — requirements, validity, and joining on an expired one", "cross_family": false }, { "answer_id": "STCW-MAN-012", "score": 0.5462287664413452, "sibling_score": 0.5462287664413452, "answer_score": null, "sibling_qid": "KOC-2024-04-0333-Q009", "sibling_text": "define fit for duty as per stcw", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Define fitness for duty as per STCW.", "cross_family": true }, { "answer_id": "CERT-LIST-P01-001", "score": 0.527564287185669, "sibling_score": 0.527564287185669, "answer_score": null, "sibling_qid": "KOC-2022-04-0070-Q010", "sibling_text": "certificiate under health hygenic in ship international ship sanitary certificate", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "List the statutory certificates carried onboard a ship.", "cross_family": true } ] }, { "qid": "KOL-2021-10-0564-Q008", "text": "what is standard discharge connection..why it is there .", "family": "MARPOL - Annex I (Oil)", "subtopic": "Standard Discharge Connection", "tid": "KOL-2021-10-0564", "tray": "review", "candidates": [ { "answer_id": "SEW-DISCH-007", "score": 0.720871090888977, "sibling_score": 0.720871090888977, "answer_score": 0.3927525237202644, "sibling_qid": "MUM-2026-08-3853-Q007", "sibling_text": "standard discharge connection", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "7. Standard discharge connection (Regulation 10)", "cross_family": false }, { "answer_id": "ISC-329-004", "score": 0.5478010773658752, "sibling_score": 0.5478010773658752, "answer_score": 0.3973897188901901, "sibling_qid": "KOL-2023-10-0783-Q004", "sibling_text": "standard discharge connection international shore coupling difference", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "What is the difference between the SOLAS international shore connection and the MARPOL standard discharge connection?", "cross_family": true }, { "answer_id": "ODC-010", "score": 0.46766459941864014, "sibling_score": 0.46766459941864014, "answer_score": null, "sibling_qid": "CHE-2025-12-0098-Q005", "sibling_text": "what s instantaneous discharge", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Instantaneous rate of discharge of oil content — definition, unit and calculation", "cross_family": false } ] }, { "qid": "KOL-2021-10-0564-Q010", "text": "What type of rudder in ship.differnce btwn balance and semi balance.why use semi balance as balance rudder is more efficient.", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2021-10-0564", "tray": "new", "candidates": [ { "answer_id": "TRS-001", "score": 0.6206782460212708, "sibling_score": 0.6206782460212708, "answer_score": null, "sibling_qid": "KOL-2019-05-3236-Q005", "sibling_text": "rudder stock twisted how will you balance it how to find changed mishsip position", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "The rudder stock is twisted — how do you proceed, recover the true midship datum, and what regulations let you proceed to the next port?", "cross_family": false }, { "answer_id": "STEER-055-A-004", "score": 0.6052692532539368, "sibling_score": 0.6052692532539368, "answer_score": null, "sibling_qid": "KOL-2019-02-3212-Q005", "sibling_text": "rudder is taking more to come from one side to the other reasons and maintenance", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Hydraulic faults — air, sluggish response, locking, leakage", "cross_family": false }, { "answer_id": "SG-RAM-001", "score": 0.5995394587516785, "sibling_score": 0.5995394587516785, "answer_score": null, "sibling_qid": "KOL-2022-10-1714-Q002", "sibling_text": "type of steering in your ship 4ram one ram crack in 2 ram steering gear i told there is duplication of system but earlier days auxiliary steering gears were used", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Two-ram steering gear — a ram or cylinder cracks, leaks, seizes or ruptures: how do you keep steering?", "cross_family": false } ] }, { "qid": "KOL-2021-10-0565-Q006", "text": "Command team 1st duty in fire drill", "family": "ISM Code", "subtopic": "SMS / Functional Requirements", "tid": "KOL-2021-10-0565", "tray": "new", "candidates": [ { "answer_id": "ISM-AUD-P02-004", "score": 0.5034809112548828, "sibling_score": 0.5034809112548828, "answer_score": null, "sibling_qid": "KOC-2024-02-0301-Q014", "sibling_text": "drills specified in sms explained fire abandon enclosed emergency steering as per lsa code", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "SMS contents, manuals, documents and drill records onboard", "cross_family": false }, { "answer_id": "SCAV-323-P01-003", "score": 0.49976664781570435, "sibling_score": 0.49976664781570435, "answer_score": null, "sibling_qid": "KOL-2026-02-3917-Q003", "sibling_text": "scavenger fire what instructions as a 2e to duty engineer xx", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "As Second Engineer — instructions to the watchkeeper", "cross_family": true }, { "answer_id": "UPT-FIRE-001", "score": 0.49710407853126526, "sibling_score": 0.49710407853126526, "answer_score": 0.38838845789432525, "sibling_qid": "KOC-2021-05-1755-Q008", "sibling_text": "uptake fire and actions as 2nd eng", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "The 4/E reports an uptake fire — your actions as 2/E", "cross_family": true } ] }, { "qid": "KOL-2021-10-0567-Q001", "text": "Container ship speciality in construction ? KEY ANS : cell guides and for torsion box tell that it ends at engine room bulkhead", "family": "Cargo Ops - Containers", "subtopic": "TEU", "tid": "KOL-2021-10-0567", "tray": "review", "candidates": [ { "answer_id": "DB-TORBOX-B-001", "score": 0.7330824136734009, "sibling_score": 0.7330824136734009, "answer_score": 0.6160914927721023, "sibling_qid": "KOL-2026-02-1167-Q002", "sibling_text": "special feature of container ship torsion box why not in other ships where it is located he wants to hear from fwd of engine room bulkhead to the aft of collision bulkhead", "sibling_family": "", "via": "sibling", "answer_title": "Torsion box — purpose, location, and why container ships", "cross_family": false }, { "answer_id": "DBTB-A-004", "score": 0.7269521355628967, "sibling_score": 0.7269521355628967, "answer_score": 0.6120098024606705, "sibling_qid": "MUM-2026-05-3215-Q001", "sibling_text": "torsion box in container location connection to collision bulkhead", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Torsion box: construction and arrangement in a container ship", "cross_family": true }, { "answer_id": "DB-TORBOX-B-003", "score": 0.6793838739395142, "sibling_score": 0.6793838739395142, "answer_score": 0.5848588913679122, "sibling_qid": "KOL-2021-08-0546-Q003", "sibling_text": "type of ship sailed pecularity of container ship torsion box", "sibling_family": "", "via": "sibling", "answer_title": "What is a torsion box — definition and construction", "cross_family": false } ] }, { "qid": "KOL-2021-10-0567-Q002", "text": "Continental shelf.", "family": "Other Conventions", "subtopic": "UNCLOS", "tid": "KOL-2021-10-0567", "tray": "review", "candidates": [ { "answer_id": "UNCLOS-004", "score": 0.8498675227165222, "sibling_score": 0.8498675227165222, "answer_score": 0.565826827287674, "sibling_qid": "KOL-2026-03-1198-Q008", "sibling_text": "continental shelf", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is the continental shelf under UNCLOS and what is its range?", "cross_family": false }, { "answer_id": "UNCLOS-003", "score": 0.6519727110862732, "sibling_score": 0.6519727110862732, "answer_score": 0.43100783228874207, "sibling_qid": "KOL-2025-09-1054-Q007", "sibling_text": "territorial waters", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What are the maritime zones under UNCLOS — territorial waters, the contiguous zone and the international maritime boundary?", "cross_family": false }, { "answer_id": "UNCLOS-005", "score": 0.6401830315589905, "sibling_score": 0.6401830315589905, "answer_score": 0.4713852763175964, "sibling_qid": "KOC-2024-07-0359-Q001", "sibling_text": "coastal state requirements as per unclos", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is a coastal state under UNCLOS, and how does it differ from the flag state and the port state?", "cross_family": false } ] }, { "qid": "KOL-2021-10-0570-Q003", "text": "Clear ground", "family": "Surveys - Statutory", "subtopic": "Detention / Clear Ground", "tid": "KOL-2021-10-0570", "tray": "review", "candidates": [ { "answer_id": "DCG-001", "score": 0.7404435276985168, "sibling_score": 0.7404435276985168, "answer_score": null, "sibling_qid": "KOL-2026-05-4216-Q004", "sibling_text": "clear ground", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is meant by \"clear grounds\", under PSC and under SOLAS? Give examples and state the conditions.", "cross_family": false }, { "answer_id": "DCG-003", "score": 0.6684248447418213, "sibling_score": 0.6684248447418213, "answer_score": null, "sibling_qid": "KOL-2023-09-0767-Q005", "sibling_text": "clear ground give any example of clear ground code", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the PSC deficiency code, which code leads to a detainable deficiency, and can you give an example of a \"clear-ground code\"?", "cross_family": false }, { "answer_id": "DCG-004", "score": 0.5926123261451721, "sibling_score": 0.5926123261451721, "answer_score": null, "sibling_qid": "KOL-2025-08-1020-Q010", "sibling_text": "clear ground nc mnc action", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the relationship between clear grounds, NC and MNC, and what action follows?", "cross_family": false } ] }, { "qid": "KOL-2021-10-0570-Q004", "text": "Ism stake holders.", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOL-2021-10-0570", "tray": "new", "candidates": [ { "answer_id": "ISM-DPA-002", "score": 0.5590183138847351, "sibling_score": 0.5590183138847351, "answer_score": null, "sibling_qid": "KOC-2023-03-0172-Q004", "sibling_text": "ism who is responsible for ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "DPA basis : which convention, which code, and who is responsible for ISM", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.5331820845603943, "sibling_score": 0.5331820845603943, "answer_score": null, "sibling_qid": "MUM-2025-09-0457-Q008", "sibling_text": "objectives of ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "ISM-AUD-P02-002", "score": 0.4888446629047394, "sibling_score": 0.4888446629047394, "answer_score": null, "sibling_qid": "KOC-2026-01-2087-Q013", "sibling_text": "what is the purpose of ism internal", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM Code — what it is, purpose, objectives and structure", "cross_family": false } ] }, { "qid": "KOL-2021-10-0571-Q003", "text": "What is nodular grey cast iron and why we use ?", "family": "NDT & Material Testing", "subtopic": "Material Properties", "tid": "KOL-2021-10-0571", "tray": "new", "candidates": [ { "answer_id": "MATPROP-A-003", "score": 0.6453081965446472, "sibling_score": 0.6453081965446472, "answer_score": 0.4876523047685623, "sibling_qid": "KOL-2021-07-1906-Q001", "sibling_text": "nodular cast iron uses composition", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Cast iron: grey, white, nodular; versus cast steel", "cross_family": false }, { "answer_id": "HT-A-001", "score": 0.5561179518699646, "sibling_score": 0.5561179518699646, "answer_score": null, "sibling_qid": "CHE-2026-05-0569-Q003", "sibling_text": "why cast iron and heat treatment process", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Heat treatment: what it is, the main methods, and why it is done", "cross_family": false }, { "answer_id": "PRING-B-003", "score": 0.4401767909526825, "sibling_score": null, "answer_score": 0.4401767909526825, "sibling_qid": "", "sibling_text": "material coating manufacture base material grey pearlitic cast iron lamellar flake graphite is a built in solid lubricant and gives damping and machinability alloyed with cr mo v ti ni cu form hard carbides raise strength wear and corrosion resistance", "sibling_family": "", "via": "answer_title", "answer_title": "Material, coating & manufacture", "cross_family": false } ] }, { "qid": "KOL-2021-10-1626-Q003", "text": "Domestic refer unloading.", "family": "Refrigeration & AC", "subtopic": "Capacity Control / Unloader", "tid": "KOL-2021-10-1626", "tray": "review", "candidates": [ { "answer_id": "CAP-CTRL-002", "score": 0.6692506670951843, "sibling_score": 0.6692506670951843, "answer_score": null, "sibling_qid": "KOC-2025-12-1985-Q003", "sibling_text": "unloader in refer compressor", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "CG-002 · How the cylinder-unloader mechanism works", "cross_family": false }, { "answer_id": "BC-IMSBC-010", "score": 0.3434891045093536, "sibling_score": null, "answer_score": 0.3434891045093536, "sibling_qid": "", "sibling_text": "10 self discharging self unloading bulk carriers self unloader discharges without shore equipment gravity gates in the hold bottoms feed a tunnel conveyor then an elevator or loop then a luffing and slewing boom conveyor to shore continuous fast discharge can work at berths with no shore cargo gear", "sibling_family": "", "via": "answer_title", "answer_title": "10. Self-discharging (self-unloading) bulk carriers", "cross_family": false }, { "answer_id": "CPS-316-002", "score": 0.3366178065538406, "sibling_score": null, "answer_score": 0.3366178065538406, "sibling_qid": "", "sibling_text": "2 e checks and preparation before cargo discharge cargo operations", "sibling_family": "", "via": "answer_title", "answer_title": "2/E checks and preparation before cargo discharge / cargo operations", "cross_family": false } ] }, { "qid": "KOL-2021-10-1627-Q001", "text": "1 .type of engine and power calculation", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOL-2021-10-1627", "tray": "review", "candidates": [ { "answer_id": "PERF-470-003", "score": 0.7394453287124634, "sibling_score": 0.7394453287124634, "answer_score": 0.5921257227659226, "sibling_qid": "KOC-2022-07-0966-Q005", "sibling_text": "main engine power calculation", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main-engine power calculation — formulae and cross-checks", "cross_family": true }, { "answer_id": "MIP-264-003", "score": 0.7129347324371338, "sibling_score": 0.7129347324371338, "answer_score": 0.560560005903244, "sibling_qid": "KOL-2018-06-1388-Q004", "sibling_text": "engine power calculation", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Calculate engine power: IHP and BHP, and where each is measured", "cross_family": true }, { "answer_id": "IND-CARD-A-001", "score": 0.6915588974952698, "sibling_score": 0.6915588974952698, "answer_score": null, "sibling_qid": "KOL-2022-06-1691-Q002", "sibling_text": "calculating power from engine developed power ind diagrams", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Reading the power / draw card — what it tells you", "cross_family": true } ] }, { "qid": "KOL-2021-10-1630-Q001", "text": "What is fqs, how is done", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Quality / CCAI", "tid": "KOL-2021-10-1630", "tray": "new", "candidates": [ { "answer_id": "VIT-MECH-B-002", "score": 0.5107802152633667, "sibling_score": 0.5107802152633667, "answer_score": null, "sibling_qid": "CHE-2026-03-0254-Q002", "sibling_text": "vit explain fqs settings", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How VIT is adjusted and set — timing and fuel-quality (FQS) interactions", "cross_family": false }, { "answer_id": "QCV-001", "score": 0.4926588535308838, "sibling_score": 0.4926588535308838, "answer_score": null, "sibling_qid": "KOL-2022-09-3567-Q006", "sibling_text": "fqs system", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Quick closing valve — construction and what it is", "cross_family": true }, { "answer_id": "CPP-ATC-02", "score": 0.4269634485244751, "sibling_score": 0.4269634485244751, "answer_score": 0.32627308964729307, "sibling_qid": "CHE-2026-05-0551-Q012", "sibling_text": "fqs adjustment", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "FQS adjustment — what it is, why used, how set", "cross_family": true } ] }, { "qid": "KOL-2021-10-1631-Q002", "text": "Reverse osmosis", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "KOL-2021-10-1631", "tray": "review", "candidates": [ { "answer_id": "FWG-RO-006", "score": 0.6991499662399292, "sibling_score": 0.6991499662399292, "answer_score": 0.5616702556610107, "sibling_qid": "KOC-2026-08-2117-Q001", "sibling_text": "reverse osmosis", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Explain reverse osmosis — the principle and flow, pre- and post-treatment, and what chemical is dosed before the RO.", "cross_family": true }, { "answer_id": "RVSG-213-001", "score": 0.6340129375457764, "sibling_score": 0.6340129375457764, "answer_score": null, "sibling_qid": "KOL-2022-10-1713-Q005", "sibling_text": "rotary vane system and vane material rao difference bw osmosis n reverse osmosis", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Construction, main parts, materials & vane fitment", "cross_family": true }, { "answer_id": "LOF-359-003", "score": 0.4605409801006317, "sibling_score": 0.4605409801006317, "answer_score": null, "sibling_qid": "KOC-2026-04-1125-Q002", "sibling_text": "autobackwash filter working and what happens during backwashing process", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Automatic Backwash (Back-Flush) Filter — Working", "cross_family": true } ] }, { "qid": "KOL-2021-10-1633-Q004", "text": "Crankcase explosion alarm,how to do zero setting of oil mist detector", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "OMD / Oil Mist Detector", "tid": "KOL-2021-10-1633", "tray": "review", "candidates": [ { "answer_id": "OMD-003", "score": 0.6939529776573181, "sibling_score": 0.6939529776573181, "answer_score": null, "sibling_qid": "MUM-2024-08-0189-Q004", "sibling_text": "omd zero setting calibration", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Explain the OMD working principle, its types and their differences, the electrical side, and zero setting and calibration.", "cross_family": false }, { "answer_id": "OMD-001", "score": 0.6797731518745422, "sibling_score": 0.6797731518745422, "answer_score": 0.4810047894716263, "sibling_qid": "KOL-2019-05-3241-Q002", "sibling_text": "omd alarm your action he told me as alarm limit is at a safer limit 5 lel reset the alarm and if it s gone it s gone for good we don t need to do crankcase inspections that will make you loose 2 3 hours and time charter won t be happy about any unnecessary delay", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "The OMD alarm sounds on your watch. What are your actions, the checks and crankcase inspection that follow, and what are the alarm levels?", "cross_family": false }, { "answer_id": "FP-OVHL-005", "score": 0.6727941036224365, "sibling_score": 0.6727941036224365, "answer_score": 0.5157012850046158, "sibling_qid": "KOL-2025-07-1993-Q005", "sibling_text": "zero setting of fuel pp", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel pump zero setting — what it is, why, and how to set it", "cross_family": true } ] }, { "qid": "KOL-2021-10-1635-Q003", "text": "Something about problem of bending of propeller shaft how is it handled . 4 turn down ratio in boiler burner", "family": "General Marine Engineering", "subtopic": "Shafting / Propeller / CPP", "tid": "KOL-2021-10-1635", "tray": "new", "candidates": [ { "answer_id": "STT-BRG-008", "score": 0.5685179233551025, "sibling_score": 0.5685179233551025, "answer_score": null, "sibling_qid": "KOL-2026-03-1198-Q006", "sibling_text": "special arrangements of tellshaft bearing to take load of propeller", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "7. Stern tube bearings — number, size, fixing, clearance, weardown and high-temperature", "cross_family": true }, { "answer_id": "STT-BRG-001", "score": 0.5301310420036316, "sibling_score": 0.5301310420036316, "answer_score": null, "sibling_qid": "KOL-2025-06-3802-Q005", "sibling_text": "propellor is overhang like cantilever and have bending moment acting what is the arrangement to compensate this", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "8. Tail shaft — survey, condition monitoring, wet test, removal checks and propeller overhang", "cross_family": true }, { "answer_id": "PCD-P02-03", "score": 0.5163005590438843, "sibling_score": 0.5163005590438843, "answer_score": null, "sibling_qid": "KOL-2021-08-1618-Q002", "sibling_text": "boiler feed pup axial thrust minimise", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Boiler feed pump — type, axial thrust, and how high pressure is generated", "cross_family": true } ] }, { "qid": "KOL-2021-10-1635-Q004", "text": "Crank shaft failure No cross questions unless i answered something wrong", "family": "NDT & Material Testing", "subtopic": "Creep / Fatigue Failure", "tid": "KOL-2021-10-1635", "tray": "review", "candidates": [ { "answer_id": "CRK-DEFL-001", "score": 0.7297823429107666, "sibling_score": 0.7297823429107666, "answer_score": null, "sibling_qid": "CHE-2026-05-0648-Q005", "sibling_text": "stresses on crank shaft not accepting any stress", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Purpose, timing and scope of crankshaft deflection", "cross_family": true }, { "answer_id": "CRKPIN-P02-003", "score": 0.7143869996070862, "sibling_score": 0.7143869996070862, "answer_score": 0.5778547525405884, "sibling_qid": "KOL-2021-05-3405-Q001", "sibling_text": "crank pin damaged beyond repair action", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankpin or bearing beyond repair / no spare — casualty action", "cross_family": true }, { "answer_id": "CRPIN-CHK-P01-004", "score": 0.6823005676269531, "sibling_score": 0.6823005676269531, "answer_score": null, "sibling_qid": "KOL-2022-08-3559-Q003", "sibling_text": "crankpin bearing beyond repair actions", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Repairing an oval or worn crankpin — grinding, undersize bearings, renewal", "cross_family": true } ] }, { "qid": "KOL-2021-10-1636-Q004", "text": "turbocharger clearance 4 AE START PROCEDURE AFTER OVERHAULING", "family": "Turbocharger", "subtopic": "TC Clearances / Inspection", "tid": "KOL-2021-10-1636", "tray": "review", "candidates": [ { "answer_id": "TC-CS-P01-006", "score": 0.7200021147727966, "sibling_score": 0.7200021147727966, "answer_score": 0.5730556607246399, "sibling_qid": "KOC-2025-05-1915-Q002", "sibling_text": "ae turbocharger overhaul how to take clearnce k l m", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "F·Turbocharger overhaul and clearances (ME and AE)", "cross_family": false }, { "answer_id": "TC-OVHL-005", "score": 0.6647621989250183, "sibling_score": 0.6647621989250183, "answer_score": null, "sibling_qid": "MUM-2026-09-3904-Q001", "sibling_text": "ae turbocharger overhaul complete and balancing post overhaul", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharger rotor balancing and shaft trueness", "cross_family": false }, { "answer_id": "TURBO-CS-P02-004", "score": 0.652670681476593, "sibling_score": 0.652670681476593, "answer_score": null, "sibling_qid": "KOL-2017-06-3063-Q002", "sibling_text": "before overhauling turbocharger what all clearance you will check after overhauling what all things you will check material of turbine blade", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharger clearances — what, how, and the k/l/m values", "cross_family": false } ] }, { "qid": "KOL-2021-10-1637-Q002", "text": "Types of boiler safety valve done?(said-improved high lift safety valve),how to test all the parts after overhauling and present it to a surveyor How spindle and vale in safety valve connected( i said there is a small hole on the spindle and valve and pin is fitted). Clearance is provided in between the hole and pin,why?(and- for expansion)", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2021-10-1637", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.7901935577392578, "sibling_score": 0.7901935577392578, "answer_score": null, "sibling_qid": "KOL-2021-08-1614-Q006", "sibling_text": "boiler survey interval types of safety valves improved high lift safety valve in detail", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.7496886849403381, "sibling_score": 0.7496886849403381, "answer_score": null, "sibling_qid": "CHE-2026-09-3919-Q009", "sibling_text": "boiler safety valve setting in front of surveyor first and second safety valve pressure difference", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "MR-DS-PV-B-006", "score": 0.7479620575904846, "sibling_score": 0.7479620575904846, "answer_score": null, "sibling_qid": "KOC-2026-09-2180-Q009", "sibling_text": "full bore safety valve construction", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "6. Deck isolating valve, deck relief/safety devices, and cargo-tank pressure", "cross_family": false } ] }, { "qid": "KOL-2021-10-1637-Q003", "text": "Steering gear rudder carrier bearing overhaul and repair given you have shore assitance", "family": "Steering Gear & Hydraulics", "subtopic": "Tiller / Rudder Stock", "tid": "KOL-2021-10-1637", "tray": "review", "candidates": [ { "answer_id": "PRE-TEN-001", "score": 0.7852563261985779, "sibling_score": 0.7852563261985779, "answer_score": null, "sibling_qid": "MUM-2026-09-3907-Q001", "sibling_text": "rudder carrier bearing replacement in port", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Pre-stressing and pre-tensioning in main-engine bolting", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.7373193502426147, "sibling_score": 0.7373193502426147, "answer_score": 0.5041144907474517, "sibling_qid": "MUM-2026-06-3610-Q003", "sibling_text": "removal of rudder bearing", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "RUD-DROP-003", "score": 0.6772527098655701, "sibling_score": 0.6772527098655701, "answer_score": null, "sibling_qid": "KOL-2024-03-3677-Q002", "sibling_text": "how to check rudder drop where to fit trammel gauge rudder drop has reached its max limit and bearing white metal has gone how u ll proceed with its repair and what you ll do to bearing", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Rudder drop at the limit: the decision", "cross_family": false } ] }, { "qid": "KOL-2021-10-1908-Q001", "text": "Engine how attatched to ship", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Bedplate / Chocks / HDB", "tid": "KOL-2021-10-1908", "tray": "new", "candidates": [ { "answer_id": "EMD-MEAE-001", "score": 0.6127124428749084, "sibling_score": 0.6127124428749084, "answer_score": null, "sibling_qid": "MUM-2026-03-1294-Q007", "sibling_text": "what is the difference in the foundation of main engine and auxiliary engine both are fitted to the ship s hull what is the difference in their foundation", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "1. ME vs AE foundation — rigid chocking against resilient mounting", "cross_family": false }, { "answer_id": "BED-CHOCK-002", "score": 0.5832225680351257, "sibling_score": 0.5832225680351257, "answer_score": 0.4595574736595154, "sibling_qid": "MUM-2026-07-3818-Q002", "sibling_text": "how the chocks are there in main engine", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What is the function of main-engine chocks?", "cross_family": false }, { "answer_id": "CRK-DEFL-006", "score": 0.5806726217269897, "sibling_score": 0.5806726217269897, "answer_score": null, "sibling_qid": "KOC-2024-01-1828-Q007", "sibling_text": "your ship grounded what all you check crankshaft deflection", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Checks after grounding, refloating or heavy weather", "cross_family": false } ] }, { "qid": "KOL-2021-10-1908-Q004", "text": "Fwg shell temp increasing.", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "KOL-2021-10-1908", "tray": "new", "candidates": [ { "answer_id": "FWG-RO-005", "score": 0.5997707843780518, "sibling_score": 0.5997707843780518, "answer_score": 0.38141527473926545, "sibling_qid": "MUM-2025-05-2795-Q003", "sibling_text": "fwg she ll temp high", "sibling_family": "Fresh Water & Domestic Systems", "via": "sibling", "answer_title": "How does the FWG heat exchanger differ from other heat exchangers, and why does the shell temperature go high?", "cross_family": true }, { "answer_id": "JCW-SYS-003", "score": 0.5816623568534851, "sibling_score": 0.5816623568534851, "answer_score": 0.38569997549057006, "sibling_qid": "MUM-2025-12-1222-Q007", "sibling_text": "jacket water temp rising from 70 to 75 actions", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "ME jacket-water temperature is rising on all units and will not hold setpoint - reasons, your actions as 2/E, and telling which side of the cooler is leaking", "cross_family": false }, { "answer_id": "FWG-RO-004", "score": 0.5180745124816895, "sibling_score": 0.5180745124816895, "answer_score": 0.36538656949996945, "sibling_qid": "MUM-2023-12-2212-Q007", "sibling_text": "jacket temp in and out in fwg", "sibling_family": "Fresh Water & Domestic Systems", "via": "sibling", "answer_title": "Explain the FWG's construction — the weir, the feed orifice and its purpose, and the jacket-water temperatures.", "cross_family": true } ] }, { "qid": "KOL-2021-10-2496-Q002", "text": "Bridge rectifier", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Zener / Diode / Rectifier", "tid": "KOL-2021-10-2496", "tray": "review", "candidates": [ { "answer_id": "EPC-P01-03", "score": 0.7905321717262268, "sibling_score": 0.7905321717262268, "answer_score": 0.494661357998848, "sibling_qid": "KOL-2018-09-2226-Q004", "sibling_text": "rectifier uses bridge rectifier working", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Rectifiers — definition, types, and where they are used on board", "cross_family": false }, { "answer_id": "EPC-P01-02", "score": 0.7695977091789246, "sibling_score": 0.7695977091789246, "answer_score": null, "sibling_qid": "CHE-2026-05-0603-Q005", "sibling_text": "name some diode uses bridge rectifier", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Types of diodes, and where diodes are used on board", "cross_family": false }, { "answer_id": "VOLT-SYS-008", "score": 0.7078862190246582, "sibling_score": 0.7078862190246582, "answer_score": null, "sibling_qid": "KOL-2022-07-2582-Q004", "sibling_text": "equipments on bridge supply voltage", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Why standard shipboard voltages: 440, 230/220, 110 and 24", "cross_family": false } ] }, { "qid": "KOL-2021-10-2496-Q003", "text": "ICCP", "family": "Electrical - ICCP & Cathodic Protection", "subtopic": "ICCP", "tid": "KOL-2021-10-2496", "tray": "review", "candidates": [ { "answer_id": "ICCP-119-P01-001", "score": 0.7966793179512024, "sibling_score": 0.7966793179512024, "answer_score": 0.47619024515151975, "sibling_qid": "MUM-2023-06-1389-Q001", "sibling_text": "iccp", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP — purpose, principle and basic working", "cross_family": false }, { "answer_id": "ICCP-119-P01-002", "score": 0.4517800509929657, "sibling_score": null, "answer_score": 0.4517800509929657, "sibling_qid": "", "sibling_text": "iccp circuit control arrangement construction and main components", "sibling_family": "", "via": "answer_title", "answer_title": "ICCP circuit / control arrangement, construction and main components", "cross_family": false }, { "answer_id": "ICCP-119-P01-003", "score": 0.39591798186302185, "sibling_score": null, "answer_score": 0.39591798186302185, "sibling_qid": "", "sibling_text": "iccp values impressed current meaning anode cathode roles and materials", "sibling_family": "", "via": "answer_title", "answer_title": "ICCP values, impressed-current meaning, anode/cathode roles and materials", "cross_family": false } ] }, { "qid": "KOL-2021-10-2497-Q004", "text": ".Alternator stator construction,how ventilation is provided in laminations?", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator / Generator", "tid": "KOL-2021-10-2497", "tray": "new", "candidates": [ { "answer_id": "ROTSTAT-C-003", "score": 0.5841220617294312, "sibling_score": 0.5841220617294312, "answer_score": 0.475215470790863, "sibling_qid": "KOL-2026-01-2951-Q001", "sibling_text": "alternator stator construction", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Stator construction, winding & types", "cross_family": false }, { "answer_id": "ALT-MTN-B-003", "score": 0.5456421971321106, "sibling_score": 0.5456421971321106, "answer_score": null, "sibling_qid": "MUM-2023-11-1410-Q007", "sibling_text": "alternator winding cooling system", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Heating control and cooling checks", "cross_family": false }, { "answer_id": "ALT-GEN-P03-005", "score": 0.5361014604568481, "sibling_score": 0.5361014604568481, "answer_score": null, "sibling_qid": "KOC-2023-02-1231-Q004", "sibling_text": "alternator construction", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Alternator construction, parts, and direct connection", "cross_family": false } ] }, { "qid": "KOL-2021-10-2498-Q002", "text": "Alternator type you have onboard,rating,sea load.how can u identify by seeing the alternator part that it is diesel engine driven or turbine driven,how many cables comes out from the alternator to the msb.", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator / Generator", "tid": "KOL-2021-10-2498", "tray": "review", "candidates": [ { "answer_id": "CABLE-INS-E-003", "score": 0.7280421853065491, "sibling_score": 0.7280421853065491, "answer_score": 0.586425268650055, "sibling_qid": "MUM-2026-06-3632-Q010", "sibling_text": "type of power cable connected between alternator and msb", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Cable / conductor arrangement: alternator to MSB", "cross_family": false }, { "answer_id": "ALT-GEN-P02-001", "score": 0.7018229365348816, "sibling_score": 0.7018229365348816, "answer_score": 0.5353322982788086, "sibling_qid": "CHE-2025-11-0311-Q001", "sibling_text": "type of ship and alternator spec", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Alternator/generator specifications, ratings and ship electrical supply details", "cross_family": false }, { "answer_id": "ALT-GEN-P04-002", "score": 0.6811289191246033, "sibling_score": 0.6811289191246033, "answer_score": 0.5775220930576325, "sibling_qid": "KOL-2018-07-2209-Q001", "sibling_text": "what is the difference between alternator of diesel driven and turbine driven", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Diesel-driven alternator versus turbo-generator alternator", "cross_family": false } ] }, { "qid": "KOL-2021-10-2499-Q005", "text": "iccp", "family": "Electrical - ICCP & Cathodic Protection", "subtopic": "ICCP", "tid": "KOL-2021-10-2499", "tray": "review", "candidates": [ { "answer_id": "ICCP-119-P01-001", "score": 0.7966793179512024, "sibling_score": 0.7966793179512024, "answer_score": 0.47619024515151975, "sibling_qid": "MUM-2023-06-1389-Q001", "sibling_text": "iccp", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP — purpose, principle and basic working", "cross_family": false }, { "answer_id": "ICCP-119-P01-002", "score": 0.4517800509929657, "sibling_score": null, "answer_score": 0.4517800509929657, "sibling_qid": "", "sibling_text": "iccp circuit control arrangement construction and main components", "sibling_family": "", "via": "answer_title", "answer_title": "ICCP circuit / control arrangement, construction and main components", "cross_family": false }, { "answer_id": "ICCP-119-P01-003", "score": 0.39591798186302185, "sibling_score": null, "answer_score": 0.39591798186302185, "sibling_qid": "", "sibling_text": "iccp values impressed current meaning anode cathode roles and materials", "sibling_family": "", "via": "answer_title", "answer_title": "ICCP values, impressed-current meaning, anode/cathode roles and materials", "cross_family": false } ] }, { "qid": "KOL-2021-10-2500-Q001", "text": "DOL starter in details.", "family": "Electrical - Motors & Starters", "subtopic": "DOL Starter", "tid": "KOL-2021-10-2500", "tray": "review", "candidates": [ { "answer_id": "STARTER-DEC-B-002", "score": 0.7172062993049622, "sibling_score": 0.7172062993049622, "answer_score": null, "sibling_qid": "KOL-2026-04-2984-Q002", "sibling_text": "explain dol starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Why a starter is needed & reducing starting current", "cross_family": false }, { "answer_id": "STARTER-DEC-B-003", "score": 0.6671133637428284, "sibling_score": 0.6671133637428284, "answer_score": 0.3394425243139267, "sibling_qid": "KOC-2025-07-1559-Q009", "sibling_text": "dol starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "DOL starter — use, current, range and limits", "cross_family": false }, { "answer_id": "STR-DEC-A-001", "score": 0.6039714217185974, "sibling_score": 0.6039714217185974, "answer_score": 0.3176679193973541, "sibling_qid": "KOC-2025-02-1484-Q008", "sibling_text": "draw and explain dol starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false } ] }, { "qid": "KOL-2021-10-2504-Q005", "text": "motor stator winding protection", "family": "Electrical - Protection & Relays", "subtopic": "Protection / Relays", "tid": "KOL-2021-10-2504", "tray": "review", "candidates": [ { "answer_id": "OCR-185-006", "score": 0.6985586881637573, "sibling_score": 0.6985586881637573, "answer_score": null, "sibling_qid": "KOC-2026-02-2090-Q008", "sibling_text": "short ckt protection in motor", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "If short-circuit protection fails to operate; how it is checked", "cross_family": false }, { "answer_id": "IMSP-007", "score": 0.6583249568939209, "sibling_score": 0.6583249568939209, "answer_score": 0.5295296043157577, "sibling_qid": "MUM-2025-04-1490-Q006", "sibling_text": "protection of motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What safeties and protections are provided in an induction motor and its starter — overload, short-circuit, thermal? What about a motor on deck, and large three-phase motors?", "cross_family": true }, { "answer_id": "OC-UV-TRIP-002", "score": 0.6310614347457886, "sibling_score": 0.6310614347457886, "answer_score": null, "sibling_qid": "KOL-2020-03-2378-Q002", "sibling_text": "induction motor fuse and over current relay function", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Overcurrent vs overload relay — difference, working, settings and testing", "cross_family": false } ] }, { "qid": "KOL-2021-10-2504-Q006", "text": "generator field winding protection ?", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator Protection", "tid": "KOL-2021-10-2504", "tray": "review", "candidates": [ { "answer_id": "ALT-GEN-P01-001", "score": 0.7008957862854004, "sibling_score": 0.7008957862854004, "answer_score": 0.5326028287410736, "sibling_qid": "KOL-2026-03-2979-Q001", "sibling_text": "safety protection in alternator he wants to listen fuses in diode and bypass resistor for field winding", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Alternator/generator safeties and protection trips", "cross_family": false }, { "answer_id": "EMG-DG-P04-004", "score": 0.6986979246139526, "sibling_score": 0.6986979246139526, "answer_score": null, "sibling_qid": "MUM-2026-09-3902-Q007", "sibling_text": "protection in generator to avoid blackout", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Safeties, trips, protections & failure to start / come on load", "cross_family": false }, { "answer_id": "RES-MAG-004", "score": 0.6802980303764343, "sibling_score": 0.6802980303764343, "answer_score": null, "sibling_qid": "CHE-2026-05-0584-Q006", "sibling_text": "field winding flashing procedure", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Field flashing — the procedure, where the battery connects, which terminal, and the precautions", "cross_family": false } ] }, { "qid": "KOL-2021-10-3465-Q002", "text": "Air compressor type", "family": "Air Compressor", "subtopic": "Reciprocating Compressor", "tid": "KOL-2021-10-3465", "tray": "review", "candidates": [ { "answer_id": "MAC-353-011", "score": 0.7681418061256409, "sibling_score": 0.7681418061256409, "answer_score": null, "sibling_qid": "KOL-2017-01-1269-Q001", "sibling_text": "air compressor spec", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Main air compressor specifications / capacity, and air-bottle capacity", "cross_family": false }, { "answer_id": "CPFE-583-001", "score": 0.7582296133041382, "sibling_score": 0.7582296133041382, "answer_score": null, "sibling_qid": "MUM-2026-01-0682-Q004", "sibling_text": "type of cargo compressor", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "The Framo system — what it is, how it works, and the driving mechanism", "cross_family": true }, { "answer_id": "AC-STAGE-001", "score": 0.7346068024635315, "sibling_score": 0.7346068024635315, "answer_score": null, "sibling_qid": "KOL-2025-11-1825-Q004", "sibling_text": "working principle or two stage air compressor", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Why multistage compression — advantages over single-stage", "cross_family": false } ] }, { "qid": "KOL-2021-10-3468-Q002", "text": "Plate type valve breakage reasons", "family": "Air Compressor", "subtopic": "Reciprocating Compressor", "tid": "KOL-2021-10-3468", "tray": "new", "candidates": [ { "answer_id": "GV-330-002", "score": 0.5554198026657104, "sibling_score": 0.5554198026657104, "answer_score": null, "sibling_qid": "KOL-2026-07-4246-Q005", "sibling_text": "defects in gate valve", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Gate valve overhaul, checks & the stuck / not-operating valve", "cross_family": true }, { "answer_id": "ACRV-001", "score": 0.5376561284065247, "sibling_score": 0.5376561284065247, "answer_score": null, "sibling_qid": "MUM-2026-07-3671-Q009", "sibling_text": "first stage relief valve leaking reasons", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "First-stage relief valve lifting or leaking — reasons and checks", "cross_family": false }, { "answer_id": "AIRCOMP-PERF-002", "score": 0.5356550812721252, "sibling_score": 0.5356550812721252, "answer_score": null, "sibling_qid": "KOL-2017-08-3089-Q004", "sibling_text": "various reasons of air compressor performance fall off 5 various welding defects nd wt is root gap nd edge preparation for 12mm plates welding", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "What are the causes and remedies for reduced or deteriorated main air-compressor performance?", "cross_family": false } ] }, { "qid": "KOL-2021-10-3468-Q004", "text": "Boiler Safety valve checks during overhaul", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2021-10-3468", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P01-001", "score": 0.8230851888656616, "sibling_score": 0.8230851888656616, "answer_score": null, "sibling_qid": "KOL-2026-01-3900-Q005", "sibling_text": "check on safety valve during overhaul", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.7619342803955078, "sibling_score": 0.7619342803955078, "answer_score": null, "sibling_qid": "CHE-2026-05-0647-Q007", "sibling_text": "boiler safety valve maintenance", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.7504215836524963, "sibling_score": 0.7504215836524963, "answer_score": null, "sibling_qid": "MUM-2026-01-1242-Q010", "sibling_text": "boiler safety valve type and what is left of safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOL-2021-10-3470-Q004", "text": "How boiler derating is done? He gave me hint\thow steam", "family": "Boilers - Operations & Firing", "subtopic": "Boiler Operations", "tid": "KOL-2021-10-3470", "tray": "new", "candidates": [ { "answer_id": "TDR-584-001", "score": 0.6110758185386658, "sibling_score": 0.6110758185386658, "answer_score": null, "sibling_qid": "KOC-2026-09-2200-Q004", "sibling_text": "turn down ratio of boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "What is the turndown ratio of a marine boiler? Explain.", "cross_family": false }, { "answer_id": "BURNER-TYPE-001", "score": 0.5925262570381165, "sibling_score": 0.5925262570381165, "answer_score": null, "sibling_qid": "KOC-2024-10-2056-Q003", "sibling_text": "boiler turn down ratio", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler burner turn-down ratio", "cross_family": false }, { "answer_id": "AFR-BF68-002", "score": 0.5849738717079163, "sibling_score": 0.5849738717079163, "answer_score": null, "sibling_qid": "MUM-2025-11-2491-Q002", "sibling_text": "how to adujust a f ratio in boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Adjusting the air-fuel ratio on a boiler", "cross_family": false } ] }, { "qid": "KOL-2021-10-3470-Q005", "text": "pressure is developed and stresses on steam side. 5.", "family": "Boilers - Operations & Firing", "subtopic": "Boiler Operations", "tid": "KOL-2021-10-3470", "tray": "new", "candidates": [ { "answer_id": "BLR-STM-PR-B54-002", "score": 0.643420398235321, "sibling_score": 0.643420398235321, "answer_score": 0.4341766595840454, "sibling_qid": "KOC-2022-04-1784-Q005", "sibling_text": "during round steam pressure incresing suddenly reasons", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "On rounds the steam pressure is suddenly climbing — reasons, and what you do about it", "cross_family": false }, { "answer_id": "BLR-STM-PR-B54-001", "score": 0.5765870213508606, "sibling_score": 0.5765870213508606, "answer_score": 0.43437703549861906, "sibling_qid": "MUM-2024-08-2237-Q003", "sibling_text": "boiler operating pressure at copt operations and at sea pressure", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler steam pressure — what you hold at sea, what you hold on COPT, and why the reduction is staged", "cross_family": false }, { "answer_id": "ACCT-583-A-001", "score": 0.5687012076377869, "sibling_score": 0.5687012076377869, "answer_score": null, "sibling_qid": "MUM-2026-06-3416-Q004", "sibling_text": "accumulation pressure in boiler", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Explain the boiler accumulation pressure test — what it is, its purpose, and how it is carried out (including when and at what interval)", "cross_family": true } ] }, { "qid": "KOL-2021-10-3471-Q002", "text": "How to check holding down bolt tightness", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Holding Down Bolts", "tid": "KOL-2021-10-3471", "tray": "review", "candidates": [ { "answer_id": "TBR-TT-P02-002", "score": 0.7833207249641418, "sibling_score": 0.7833207249641418, "answer_score": 0.49870489835739135, "sibling_qid": "MUM-2026-02-2548-Q003", "sibling_text": "holding down bolt tighness check", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Checking tie rod tightness / slackness — stopped and running", "cross_family": false }, { "answer_id": "TBR-TT-P02-001", "score": 0.722629189491272, "sibling_score": 0.722629189491272, "answer_score": null, "sibling_qid": "CHE-2026-05-0641-Q012", "sibling_text": "holding down bolts checks and tightening", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Tie rod tightening / hydraulic tensioning procedure", "cross_family": false }, { "answer_id": "PRE-TEN-004", "score": 0.6572950482368469, "sibling_score": 0.6572950482368469, "answer_score": null, "sibling_qid": "KOL-2026-04-3946-Q003", "sibling_text": "how you will check the hydraulic bolts and nut tightness", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Tightening cylinder-head hydraulic bolts or nuts without a torque wrench", "cross_family": false } ] }, { "qid": "KOL-2021-10-3472-Q004", "text": "refer air purging", "family": "Refrigeration & AC", "subtopic": "Air in System", "tid": "KOL-2021-10-3472", "tray": "review", "candidates": [ { "answer_id": "AIR-REF-004", "score": 0.847012460231781, "sibling_score": 0.847012460231781, "answer_score": 0.46568765938282014, "sibling_qid": "KOL-2019-08-1472-Q007", "sibling_text": "air purging in refer", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "4. Detecting and purging air from a refrigeration system", "cross_family": false }, { "answer_id": "AIR-REF-001", "score": 0.6961947083473206, "sibling_score": 0.6961947083473206, "answer_score": null, "sibling_qid": "MUM-2024-09-2241-Q003", "sibling_text": "air in refer indication and removal", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "1. Indications that air is present in a refrigeration system", "cross_family": false }, { "answer_id": "COT-P02-12", "score": 0.6489572525024414, "sibling_score": 0.6489572525024414, "answer_score": 0.47951405346393583, "sibling_qid": "KOC-2025-10-0693-Q004", "sibling_text": "what is purging and gas freeing", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Explain and distinguish cargo-tank inerting, purging, gas freeing and ventilation, including dilution/displacement methods, atmosphere targets and cargo-pump precautions.", "cross_family": true } ] }, { "qid": "KOL-2021-10-3994-Q003", "text": "safety valve setting , how much compression nut to tighten", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2021-10-3994", "tray": "review", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-002", "score": 0.6618861556053162, "sibling_score": 0.6618861556053162, "answer_score": null, "sibling_qid": "KOL-2026-02-3922-Q005", "sibling_text": "what is lifting of safety valve tell only within 3 percent of designated set pressure nothing else", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Acceptance limits and durations — the accumulation limit, the maximum test periods, and the action if the limit is exceeded", "cross_family": false }, { "answer_id": "ECON-EGB-004", "score": 0.6606950163841248, "sibling_score": 0.6606950163841248, "answer_score": 0.5240800380706787, "sibling_qid": "KOL-2026-09-4304-Q003", "sibling_text": "safety valve setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Safety-valve setting after overhaul & why set higher than the boiler", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.6431189179420471, "sibling_score": 0.6431189179420471, "answer_score": null, "sibling_qid": "MUM-2026-02-1255-Q006", "sibling_text": "setting of safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false } ] }, { "qid": "KOL-2021-10-3995-Q002", "text": "what type of ship sailed", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2021-10-3995", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.812541663646698, "sibling_score": 0.812541663646698, "answer_score": null, "sibling_qid": "CHE-2026-02-0478-Q004", "sibling_text": "this type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7860474586486816, "sibling_score": 0.7860474586486816, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.4677993834018707, "sibling_score": null, "answer_score": 0.4677993834018707, "sibling_qid": "", "sibling_text": "type a and type b ships how form and cargo set the freeboard", "sibling_family": "", "via": "answer_title", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "KOL-2021-11-0572-Q004", "text": "what is classification society? What certificate is issued ? Name of the certificate? Why issued ? What is condition of class ? In emergency will class issue certificate?", "family": "Surveys - Statutory", "subtopic": "Condition of Class", "tid": "KOL-2021-11-0572", "tray": "review", "candidates": [ { "answer_id": "CERT-LIST-P01-001", "score": 0.7061688899993896, "sibling_score": 0.7061688899993896, "answer_score": null, "sibling_qid": "KOL-2023-05-2653-Q004", "sibling_text": "classsifiation sociaty certificate", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "List the statutory certificates carried onboard a ship.", "cross_family": false }, { "answer_id": "IACS-324-005", "score": 0.6957913041114807, "sibling_score": 0.6957913041114807, "answer_score": 0.49755746126174927, "sibling_qid": "KOL-2021-12-0583-Q006", "sibling_text": "statutory certificate definition ro classification society difference", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "5. What is the difference between a classification society, a Recognized Organization, and statutory certification?", "cross_family": false }, { "answer_id": "COC-001", "score": 0.6844496130943298, "sibling_score": 0.6844496130943298, "answer_score": null, "sibling_qid": "MUM-2026-06-3410-Q007", "sibling_text": "certificate of class condition of class", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is a Condition of Class? Give examples, say where it is found, how much time is given to rectify it, and what happens if it is not met in time.", "cross_family": false } ] }, { "qid": "KOL-2021-11-0572-Q005", "text": "AIS ? What is its purpose ?", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "KOL-2021-11-0572", "tray": "new", "candidates": [ { "answer_id": "IACS-324-001", "score": 0.42277640104293823, "sibling_score": 0.42277640104293823, "answer_score": 0.32864694893360136, "sibling_qid": "CHE-2025-08-0031-Q006", "sibling_text": "role of iacs", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "1. What is IACS and what are its functions?", "cross_family": true }, { "answer_id": "EEDI-C-002", "score": 0.4068009853363037, "sibling_score": 0.4068009853363037, "answer_score": null, "sibling_qid": "KOC-2024-06-0351-Q008", "sibling_text": "eedi eeoi int isps chapters ism code purpose", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "EEDI versus EEOI — what is the difference?", "cross_family": true }, { "answer_id": "ISM-ELEM-001", "score": 0.4051714539527893, "sibling_score": 0.4051714539527893, "answer_score": 0.29759678840637205, "sibling_qid": "MUM-2024-07-2766-Q004", "sibling_text": "what is purpose of ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": true } ] }, { "qid": "KOL-2021-11-0573-Q002", "text": "What is sua convention.", "family": "ISPS", "subtopic": "ISPS Code / Security Level", "tid": "KOL-2021-11-0573", "tray": "new", "candidates": [ { "answer_id": "OTH-CONV-007", "score": 0.46670621633529663, "sibling_score": 0.46670621633529663, "answer_score": 0.2759045630693436, "sibling_qid": "KOC-2023-01-1223-Q013", "sibling_text": "sps convention", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "SPS Code — purpose and scope", "cross_family": true }, { "answer_id": "AFS-309-001", "score": 0.45842891931533813, "sibling_score": 0.45842891931533813, "answer_score": 0.2431946516036987, "sibling_qid": "KOC-2022-01-0058-Q004", "sibling_text": "afs convention", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "The AFS Convention — what it is, why it came, what it controls", "cross_family": true }, { "answer_id": "IMO-CODES-P02-001", "score": 0.4574461877346039, "sibling_score": 0.4574461877346039, "answer_score": null, "sibling_qid": "KOC-2023-11-0246-Q001", "sibling_text": "convention", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "IMO instruments: convention, code, protocol, amendment, regulation, resolution and rule", "cross_family": true } ] }, { "qid": "KOL-2021-11-0574-Q004", "text": "ISM code ,it's elements,", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOL-2021-11-0574", "tray": "review", "candidates": [ { "answer_id": "ISM-ELEM-002", "score": 0.700870931148529, "sibling_score": 0.700870931148529, "answer_score": null, "sibling_qid": "KOC-2026-02-0832-Q008", "sibling_text": "ism code explain all elements", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the ISM Code?", "cross_family": false }, { "answer_id": "ISM-ELEM-003", "score": 0.6514726281166077, "sibling_score": 0.6514726281166077, "answer_score": 0.45079402923583983, "sibling_qid": "KOC-2026-02-0817-Q006", "sibling_text": "ism elements", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": false }, { "answer_id": "ISM-AUD-P02-002", "score": 0.3114409655332565, "sibling_score": null, "answer_score": 0.3114409655332565, "sibling_qid": "", "sibling_text": "ism code what it is purpose objectives and structure full name carries both limbs safe operation of ships and pollution prevention never drop the pollution half adopted by resolution a 741 18 in 1993 given legal force through solas chapter ix in force 1 july 1998 phase 1", "sibling_family": "", "via": "answer_title", "answer_title": "ISM Code — what it is, purpose, objectives and structure", "cross_family": false } ] }, { "qid": "KOL-2021-11-0574-Q005", "text": "how 2nd element of ISM related to STCW", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOL-2021-11-0574", "tray": "new", "candidates": [ { "answer_id": "ERM-BF053-001", "score": 0.5067024827003479, "sibling_score": 0.5067024827003479, "answer_score": null, "sibling_qid": "KOC-2025-01-0525-Q003", "sibling_text": "stcw erm", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is Engine Room Resource Management — explain it fully, with its parts and the STCW regulation and chapter it comes under?", "cross_family": false }, { "answer_id": "ISM-2E-A-001", "score": 0.48496878147125244, "sibling_score": 0.48496878147125244, "answer_score": null, "sibling_qid": "CHE-2026-04-0156-Q005", "sibling_text": "2e role in ism code", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Roles, duties and responsibilities of a Second Engineer under ISM/SMS", "cross_family": false }, { "answer_id": "STCW-MAN-002", "score": 0.4774623513221741, "sibling_score": 0.4774623513221741, "answer_score": null, "sibling_qid": "KOC-2024-11-0455-Q005", "sibling_text": "stcw", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Name the chapters of the STCW Convention and explain them.", "cross_family": true } ] }, { "qid": "KOL-2021-11-0575-Q001", "text": "How semi- balanced rudder is connected to ship (construction)", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2021-11-0575", "tray": "new", "candidates": [ { "answer_id": "TRS-002", "score": 0.6007557511329651, "sibling_score": 0.6007557511329651, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.571922242641449, "sibling_score": 0.571922242641449, "answer_score": null, "sibling_qid": "MUM-2026-06-3584-Q005", "sibling_text": "what takes weight of rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "TRS-001", "score": 0.5600429773330688, "sibling_score": 0.5600429773330688, "answer_score": null, "sibling_qid": "KOL-2019-05-3236-Q005", "sibling_text": "rudder stock twisted how will you balance it how to find changed mishsip position", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "The rudder stock is twisted — how do you proceed, recover the true midship datum, and what regulations let you proceed to the next port?", "cross_family": false } ] }, { "qid": "KOL-2021-11-0575-Q002", "text": "MLC Objectives ,duties as 2 nd engg", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOL-2021-11-0575", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-004", "score": 0.48903512954711914, "sibling_score": 0.48903512954711914, "answer_score": null, "sibling_qid": "KOC-2022-01-0051-Q006", "sibling_text": "young seafarer as 2e what to ensure explained him about the mlc work and rest hours and also the night work criteria as second eng will not allow young seafarer to do critical jobs alone", "sibling_family": "MLC", "via": "sibling", "answer_title": "Young seafarers — minimum age, night work, and what the 2/E must ensure", "cross_family": false }, { "answer_id": "LLC-SURV-P01-001", "score": 0.4813370704650879, "sibling_score": 0.4813370704650879, "answer_score": null, "sibling_qid": "MUM-2025-05-0275-Q003", "sibling_text": "preparation for loadline survey as 2nd engg only for enginer room side", "sibling_family": "", "via": "sibling", "answer_title": "Load line survey preparation as Second Engineer: engine-room scope, machinery openings, tanks/vents, valves and overboard checks", "cross_family": false }, { "answer_id": "LLC-SURV-P02-001", "score": 0.4797792434692383, "sibling_score": 0.4797792434692383, "answer_score": null, "sibling_qid": "KOL-2018-02-0149-Q005", "sibling_text": "second engg duties in load line survey", "sibling_family": "", "via": "sibling", "answer_title": "1. Load line survey preparation: readiness, weather-tight checks and attendance", "cross_family": false } ] }, { "qid": "KOL-2021-11-0576-Q004", "text": "Radius of gyration and period of roll", "family": "SOLAS", "subtopic": "Static / Dynamic Stability", "tid": "KOL-2021-11-0576", "tray": "review", "candidates": [ { "answer_id": "BK-002", "score": 0.7619649171829224, "sibling_score": 0.7619649171829224, "answer_score": 0.4666690707206726, "sibling_qid": "KOC-2026-03-0882-Q005", "sibling_text": "radius of gyration and time period of roll amplitude of roll", "sibling_family": "", "via": "sibling", "answer_title": "How does a bilge keel reduce rolling, and how does it relate to roll period and radius of gyration?", "cross_family": false }, { "answer_id": "STF-TND-P03-001", "score": 0.4928193181753158, "sibling_score": null, "answer_score": 0.4928193181753158, "sibling_qid": "", "sibling_text": "stiff and tender ships what they are and how gm drives behaviour gm km kg the lever ofinitialstability small angles up to about 10 stiff large gm tender small gm rolling period t 2 k g gm with k the transverse roll radius of gyration 0 35 0 40 b so period varies as 1 gm large gm short period stiff small gm long period tender", "sibling_family": "", "via": "answer_title", "answer_title": "Stiff and tender ships — what they are and how GM drives behaviour", "cross_family": false }, { "answer_id": "PAR-ROLL-004", "score": 0.42358376532793046, "sibling_score": null, "answer_score": 0.42358376532793046, "sibling_qid": "", "sibling_text": "04 parametric vs synchronous rolling and the sequential prismatic variants synchronous direct forced resonance encounter period natural roll period 1 1 typically beam near beam seas driven by the wave s direct rolling moment parametric resonance from cyclic gm gz righting moment variation the principal container ship case is encounter period roll period 2 1 so stability varies at about twice the r", "sibling_family": "", "via": "answer_title", "answer_title": "04. Parametric vs synchronous rolling (and the ‘sequential / prismatic’ variants)", "cross_family": false } ] }, { "qid": "KOL-2021-11-0577-Q003", "text": "Freeport", "family": "Other Conventions", "subtopic": "EEZ / PSSA / Special Area", "tid": "KOL-2021-11-0577", "tray": "new", "candidates": [ { "answer_id": "BULWARK-003", "score": 0.5981141328811646, "sibling_score": 0.5981141328811646, "answer_score": 0.33740335106849667, "sibling_qid": "KOC-2025-10-0667-Q005", "sibling_text": "what is freeing port", "sibling_family": "", "via": "sibling", "answer_title": "What are freeing ports in a bulwark, and what is their purpose?", "cross_family": false }, { "answer_id": "MR-DS-PV-B-006", "score": 0.5109578371047974, "sibling_score": 0.5109578371047974, "answer_score": null, "sibling_qid": "MUM-2022-10-2697-Q008", "sibling_text": "why more in port", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "6. Deck isolating valve, deck relief/safety devices, and cargo-tank pressure", "cross_family": true }, { "answer_id": "UNCLOS-005", "score": 0.5001230239868164, "sibling_score": 0.5001230239868164, "answer_score": null, "sibling_qid": "MUM-2024-09-0209-Q008", "sibling_text": "flag state port state and coastal state by internal", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is a coastal state under UNCLOS, and how does it differ from the flag state and the port state?", "cross_family": false } ] }, { "qid": "KOL-2021-11-1642-Q002", "text": "What type of engine you have worked and specifications", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOL-2021-11-1642", "tray": "review", "candidates": [ { "answer_id": "ENG-NOM-005", "score": 0.7745577692985535, "sibling_score": 0.7745577692985535, "answer_score": null, "sibling_qid": "CHE-2026-04-0506-Q003", "sibling_text": "types of engine you worked specifications of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false }, { "answer_id": "MCC-MEB-P01-001", "score": 0.7233641743659973, "sibling_score": 0.7233641743659973, "answer_score": null, "sibling_qid": "MUM-2026-09-3997-Q002", "sibling_text": "type of engine worked me mcc me b and rta", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "MC-C (\"Compact\") engine — design and the main constructional differences from MC", "cross_family": false }, { "answer_id": "ENG-NOM-006", "score": 0.7107810974121094, "sibling_score": 0.7107810974121094, "answer_score": null, "sibling_qid": "MUM-2026-07-3768-Q004", "sibling_text": "main engine specification", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Short-form asks: SMC-C, LMC, and ME vs MC quickly", "cross_family": false } ] }, { "qid": "KOL-2021-11-1644-Q003", "text": "What is purpose of floating ring in improved high lift safety valve, what if lip clearance increase or decrease, how to decide pipe diameter, boiler survey interval 3 100% redundancy of SG", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2021-11-1644", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.6991330981254578, "sibling_score": 0.6991330981254578, "answer_score": null, "sibling_qid": "KOL-2021-08-1614-Q006", "sibling_text": "boiler survey interval types of safety valves improved high lift safety valve in detail", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-002", "score": 0.634574830532074, "sibling_score": 0.634574830532074, "answer_score": null, "sibling_qid": "KOL-2026-02-3922-Q005", "sibling_text": "what is lifting of safety valve tell only within 3 percent of designated set pressure nothing else", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Acceptance limits and durations — the accumulation limit, the maximum test periods, and the action if the limit is exceeded", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.6295314431190491, "sibling_score": 0.6295314431190491, "answer_score": null, "sibling_qid": "CHE-2026-09-3919-Q009", "sibling_text": "boiler safety valve setting in front of surveyor first and second safety valve pressure difference", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false } ] }, { "qid": "KOL-2021-11-1909-Q001", "text": "rudder type, and it's weight carrying bearings", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2021-11-1909", "tray": "review", "candidates": [ { "answer_id": "TRS-002", "score": 0.7328395843505859, "sibling_score": 0.7328395843505859, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.70648592710495, "sibling_score": 0.70648592710495, "answer_score": 0.4675659239292145, "sibling_qid": "CHE-2026-02-0110-Q006", "sibling_text": "how rudder weight is carried key ans i said carrier bearing how it carrying explain", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "PRE-TEN-001", "score": 0.6593918800354004, "sibling_score": 0.6593918800354004, "answer_score": null, "sibling_qid": "MUM-2026-06-3504-Q007", "sibling_text": "rudder carrier bearing removal procedure", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Pre-stressing and pre-tensioning in main-engine bolting", "cross_family": false } ] }, { "qid": "KOL-2021-11-1909-Q003", "text": "Flash evaporator", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "KOL-2021-11-1909", "tray": "new", "candidates": [ { "answer_id": "RES-MAG-004", "score": 0.5459294319152832, "sibling_score": 0.5459294319152832, "answer_score": null, "sibling_qid": "MUM-2022-11-1369-Q010", "sibling_text": "explain flashing procedure", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Field flashing — the procedure, where the battery connects, which terminal, and the precautions", "cross_family": true }, { "answer_id": "FLPT-579-001", "score": 0.4958224892616272, "sibling_score": 0.4958224892616272, "answer_score": null, "sibling_qid": "MUM-2025-11-1216-Q008", "sibling_text": "flash pt", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Flash point and fire point — what they are", "cross_family": true }, { "answer_id": "BDN-001-002", "score": 0.495269238948822, "sibling_score": 0.495269238948822, "answer_score": null, "sibling_qid": "MUM-2026-06-3472-Q007", "sibling_text": "flash point", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Latest amendment — the flashpoint entry", "cross_family": true } ] }, { "qid": "KOL-2021-11-2510-Q003", "text": "Alternnator internal electrical safety devices.", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator Protection", "tid": "KOL-2021-11-2510", "tray": "review", "candidates": [ { "answer_id": "ALT-GEN-P01-001", "score": 0.858842670917511, "sibling_score": 0.858842670917511, "answer_score": 0.6205833077430725, "sibling_qid": "MUM-2026-07-3805-Q003", "sibling_text": "alternator internal safeties", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Alternator/generator safeties and protection trips", "cross_family": false }, { "answer_id": "SHAFT-GEN-005", "score": 0.5706767857074737, "sibling_score": null, "answer_score": 0.5706767857074737, "sibling_qid": "", "sibling_text": "safeties provided for a shaft generator standard alternator protections over current short circuit over under voltage over under frequency reverse power paralleled earth fault and preferential load shedding trips sg specific interlocks breaker closes only when synchronised clutch gear engagement interlocks", "sibling_family": "", "via": "answer_title", "answer_title": "Safeties provided for a shaft generator", "cross_family": false }, { "answer_id": "OC-UV-TRIP-006", "score": 0.5371151626110077, "sibling_score": null, "answer_score": 0.5371151626110077, "sibling_qid": "", "sibling_text": "trip settings and combined overcurrent undervoltage protection alternator context alternator protection is a suite overcurrent short circuit ansi 50 51 reverse power 32 under voltage 27 over under frequency 81 earth fault 50n 51n and differential 87 on larger machines reverse power trips to prevent the alternator motoring when its prime mover loses drive protects the engine and the bus", "sibling_family": "", "via": "answer_title", "answer_title": "Trip settings and combined overcurrent / undervoltage protection — alternator context", "cross_family": false } ] }, { "qid": "KOL-2021-11-2514-Q002", "text": "Brushless excitation system, construction, where located", "family": "Electrical - Generator & Alternator", "subtopic": "Brushless Alternator", "tid": "KOL-2021-11-2514", "tray": "review", "candidates": [ { "answer_id": "BRUSHALT-A-001", "score": 0.810407817363739, "sibling_score": 0.810407817363739, "answer_score": 0.5124336123466492, "sibling_qid": "MUM-2026-09-3931-Q003", "sibling_text": "brushless excitation system location of each part and construction", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01 · Working principle of the brushless alternator / brushless excitation systemHigh", "cross_family": false }, { "answer_id": "AVR-EXC-G-002", "score": 0.53070288002491, "sibling_score": null, "answer_score": 0.53070288002491, "sibling_qid": "", "sibling_text": "brushless excitation how dc reaches the rotor avr senses terminal voltage and sets the dc to the stationary exciter field the exciter is inverted field stationary armature rotating on the shaft", "sibling_family": "", "via": "answer_title", "answer_title": "Brushless excitation: how DC reaches the rotor", "cross_family": false }, { "answer_id": "DIODESO-002", "score": 0.4806476593017578, "sibling_score": null, "answer_score": 0.4806476593017578, "sibling_qid": "", "sibling_text": "explain the rotating diodes in a brushless alternator and the problems that arise in the brushless excitation system including diode short circuit no brushes or slip rings a reliability gain but the rectifier now sits on the rotating shaft and can t be inspected or metered live chain avr stationary exciter field rotating exciter armature rotating rectifier six diodes main rotor field a pilot excit", "sibling_family": "", "via": "answer_title", "answer_title": "Explain the rotating diodes in a brushless alternator and the problems that arise in the brushless excitation system, including diode short circuit", "cross_family": false } ] }, { "qid": "KOL-2021-11-2515-Q001", "text": "Iccp working principle wat type of anodes", "family": "Electrical - ICCP & Cathodic Protection", "subtopic": "ICCP", "tid": "KOL-2021-11-2515", "tray": "review", "candidates": [ { "answer_id": "ICCP-119-P01-003", "score": 0.6853846311569214, "sibling_score": 0.6853846311569214, "answer_score": 0.4929033190011978, "sibling_qid": "MUM-2026-04-2108-Q003", "sibling_text": "how anodes is connected in iccp", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP values, impressed-current meaning, anode/cathode roles and materials", "cross_family": false }, { "answer_id": "ICCP-P02-001", "score": 0.6789484620094299, "sibling_score": 0.6789484620094299, "answer_score": null, "sibling_qid": "KOC-2022-11-1206-Q006", "sibling_text": "iccp working what all anodes used why reference anode not consumed how potential difference is made", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP reference cell / reference electrode — purpose, material, location, selection", "cross_family": false }, { "answer_id": "ICCP-119-P01-002", "score": 0.655657947063446, "sibling_score": 0.655657947063446, "answer_score": null, "sibling_qid": "CHE-2026-04-0370-Q007", "sibling_text": "what is iccp principle of working components of iccp how the hull becomes cathode what is anode how many anodes how it is fitted", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP circuit / control arrangement, construction and main components", "cross_family": false } ] }, { "qid": "KOL-2021-11-2516-Q002", "text": "Motor overhaul. 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Planning overhaul when load-carrying capacity is low", "cross_family": false }, { "answer_id": "PERF-470-005", "score": 0.6162087917327881, "sibling_score": 0.6162087917327881, "answer_score": 0.4925725847482681, "sibling_qid": "KOL-2026-05-4244-Q006", "sibling_text": "power balancing of main engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main-engine power balancing — procedure", "cross_family": true }, { "answer_id": "AEGOV-004", "score": 0.6094533801078796, "sibling_score": 0.6094533801078796, "answer_score": null, "sibling_qid": "KOL-2018-02-1354-Q006", "sibling_text": "ae load balancing how it is done if two engine with pmax 95 and 105 which one to balance why", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Load Response, Droop and Load Balancing", "cross_family": false } ] }, { "qid": "KOL-2021-11-3476-Q005", "text": "Safety valve settings,how to gag the safety valve", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2021-11-3476", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-001", "score": 0.6992804408073425, "sibling_score": 0.6992804408073425, "answer_score": null, "sibling_qid": "MUM-2026-02-1255-Q006", "sibling_text": "setting of safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "ECON-EGB-004", "score": 0.6965616345405579, "sibling_score": 0.6965616345405579, "answer_score": 0.5081499248743057, "sibling_qid": "KOL-2026-09-4304-Q003", "sibling_text": "safety valve setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Safety-valve setting after overhaul & why set higher than the boiler", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.6777834892272949, "sibling_score": 0.6777834892272949, "answer_score": null, "sibling_qid": "MUM-2026-05-2994-Q003", "sibling_text": "how do you set the safety valve in front of surveyor", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false } ] }, { "qid": "KOL-2021-11-3476-Q006", "text": "What is hydrodynamic noise from where it is produced.", "family": "Other Conventions", "subtopic": "Noise Code", "tid": "KOL-2021-11-3476", "tray": "new", "candidates": [ { "answer_id": "NOISE-CODE-001", "score": 0.4512832760810852, "sibling_score": 0.4512832760810852, "answer_score": null, "sibling_qid": "KOL-2023-11-0786-Q006", "sibling_text": "details of noise code internal", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is the Noise Code — under which convention, and what does it cover?", "cross_family": false }, { "answer_id": "NOISE-CODE-004", "score": 0.4454306364059448, "sibling_score": 0.4454306364059448, "answer_score": null, "sibling_qid": "KOC-2024-03-0321-Q016", "sibling_text": "conditions for measuring noise", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What conditions are required for carrying out a shipboard noise survey?", "cross_family": false }, { "answer_id": "NOISE-CODE-003", "score": 0.43877533078193665, "sibling_score": 0.43877533078193665, "answer_score": null, "sibling_qid": "KOC-2024-05-0340-Q005", "sibling_text": "noise code explain x what is noise level in engine room", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What noise limits apply to the different shipboard spaces?", "cross_family": false } ] }, { "qid": "KOL-2021-11-3477-Q002", "text": "Bridge Gauge working and main bearing overhaul", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Bearing Clearance", "tid": "KOL-2021-11-3477", "tray": "review", "candidates": [ { "answer_id": "MN-BRG-C-003", "score": 0.7345440983772278, "sibling_score": 0.7345440983772278, "answer_score": 0.5149767398834229, "sibling_qid": "KOL-2018-09-3187-Q003", "sibling_text": "precautions before using bridge gauge for main bearing removal", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main bearing clearance and wear-down: measuring and interpreting", "cross_family": false }, { "answer_id": "BCL-592-001", "score": 0.705216646194458, "sibling_score": 0.705216646194458, "answer_score": 0.48780221939086915, "sibling_qid": "KOL-2017-04-3048-Q003", "sibling_text": "main bearing clearence check by bridge gauge", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you take main bearing clearance with a bridge gauge? What checks and precautions come first, and where must the crankshaft be positioned?", "cross_family": false }, { "answer_id": "MN-BRG-C-001", "score": 0.695076584815979, "sibling_score": 0.695076584815979, "answer_score": 0.4707206666469574, "sibling_qid": "KOL-2024-02-3671-Q001", "sibling_text": "me main bearing overhauling and inspection", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Opening, removing and overhauling a main bearing", "cross_family": false } ] }, { "qid": "KOL-2021-11-3481-Q002", "text": "Tog spanner ?", "family": "Gauges & Tools", "subtopic": "Torque Wrench / Torque Spanner", "tid": "KOL-2021-11-3481", "tray": "new", "candidates": [ { "answer_id": "PR-SAFE-A-004", "score": 0.41093674302101135, "sibling_score": 0.41093674302101135, "answer_score": null, "sibling_qid": "KOC-2026-03-1719-Q016", "sibling_text": "can spanner carry to pumproom", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Pump-room electrical safety, lighting and portable equipment", "cross_family": true }, { "answer_id": "WTGS-325-002", "score": 0.35697948932647705, "sibling_score": 0.35697948932647705, "answer_score": 0.3005806416273117, "sibling_qid": "KOL-2022-07-1922-Q008", "sibling_text": "dock spanner", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Spanner size for metric bolts; the “dock spanner”", "cross_family": true }, { "answer_id": "SB-PRG-B-002", "score": 0.3147784471511841, "sibling_score": 0.3147784471511841, "answer_score": null, "sibling_qid": "MUM-2025-02-0967-Q011", "sibling_text": "garter spring enlongated what will you do", "sibling_family": "2-Stroke - 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Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "KOL-2021-11-3482-Q004", "text": "What are overhauls u hv done in ship", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOL-2021-11-3482", "tray": "review", "candidates": [ { "answer_id": "DCB-OVH-002", "score": 0.7081679105758667, "sibling_score": 0.7081679105758667, "answer_score": 0.3880833089351654, "sibling_qid": "MUM-2026-04-2961-Q005", "sibling_text": "what major overhaul done in ship", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "Preparing for a complete unit overhaul or unit survey", "cross_family": false }, { "answer_id": "SB-PRG-B-001", "score": 0.614717960357666, "sibling_score": 0.614717960357666, "answer_score": null, "sibling_qid": "MUM-2025-05-2295-Q015", "sibling_text": "major overhaul done on ship planned a lot this week to tell something easy bt it never works and told him honestly of main engine liner piston stuffing box etc cross questions on overhaul", "sibling_family": "2-Stroke - 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Pre-start checks after decarb / recommissioning", "cross_family": false }, { "answer_id": "LS-IMB-A-001", "score": 0.6299434900283813, "sibling_score": 0.6299434900283813, "answer_score": 0.4352455675601959, "sibling_qid": "KOL-2019-12-3300-Q004", "sibling_text": "generator engine load balancing", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Two paralleled generators sharing unequal load — cause and correction", "cross_family": true }, { "answer_id": "GEN-LSI-B-001", "score": 0.5966052412986755, "sibling_score": 0.5966052412986755, "answer_score": null, "sibling_qid": "MUM-2026-09-3865-Q004", "sibling_text": "generator not sharing equal load", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01. Two alternators in parallel — same kW but different current and power factor: cause and correction", "cross_family": true } ] }, { "qid": "KOL-2021-11-3491-Q002", "text": "What is bumping clearance , how bumping clearnce is adjusted? What is impact of bumping clearance?", "family": "Air Compressor", "subtopic": "Reciprocating Compressor", "tid": "KOL-2021-11-3491", "tray": "review", "candidates": [ { "answer_id": "RUN-CLR-002", "score": 0.6710526347160339, "sibling_score": 0.6710526347160339, "answer_score": 0.4816472589969635, "sibling_qid": "MUM-2026-06-3501-Q002", "sibling_text": "bumping clearance how to adjust", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Bumping clearance — what it is, why it matters, effects, and how it is adjusted", "cross_family": false }, { "answer_id": "AC-VE-005", "score": 0.6626265645027161, "sibling_score": 0.6626265645027161, "answer_score": 0.4781630992889404, "sibling_qid": "CHE-2026-02-0334-Q005S4", "sibling_text": "bumping clearance importance", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "If bumping clearance is more or less, what happens, and how do you reduce or adjust it?", "cross_family": false }, { "answer_id": "AC-VE-001", "score": 0.6190336346626282, "sibling_score": 0.6190336346626282, "answer_score": null, "sibling_qid": "KOL-2024-07-1947-Q010", "sibling_text": "define volumetric efficiency if drop what you do 3 methods to adjust bumping clearance", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Volumetric efficiency: define it, and if it drops how do you improve it (with bumping clearance)?", "cross_family": false } ] }, { "qid": "KOL-2021-11-3491-Q003", "text": "In MAC , cooling medium flowing which side? In tube or outside tube? Which type of valve in MAC and it's function.", "family": "Air Compressor", "subtopic": "Reciprocating Compressor", "tid": "KOL-2021-11-3491", "tray": "review", "candidates": [ { "answer_id": "MAC-598-001", "score": 0.6783062815666199, "sibling_score": 0.6783062815666199, "answer_score": null, "sibling_qid": "KOC-2023-07-0925-Q007", "sibling_text": "mac valve arrangement for inlet and outlet asking for each valve fitted", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "The main air compressor valve — arrangement, parts, and why the construction is so complex", "cross_family": false }, { "answer_id": "ICAC-299-005", "score": 0.5806796550750732, "sibling_score": 0.5806796550750732, "answer_score": null, "sibling_qid": "KOL-2019-01-3207-Q004", "sibling_text": "hydraulic testing of mac interstage cooler", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Hydraulic testing of the interstage cooler", "cross_family": false }, { "answer_id": "JCW-SYS-005", "score": 0.554418683052063, "sibling_score": 0.554418683052063, "answer_score": 0.46658714711666105, "sibling_qid": "KOL-2023-08-1934-Q006", "sibling_text": "type of valve used in m e jacket cooling water system why butterfly valve and not gate valve asked to wait outside srinivas called hoon told him what all i could not answer srinivas said you have answered only 40 you need to answer at least 60 so you have to repeat this one", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "What valve is used in the ME jacket cooling-water system - why butterfly and not gate, and where they are positioned", "cross_family": true } ] }, { "qid": "KOL-2021-12-0578-Q001", "text": "Type of ship sailed", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2021-12-0578", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8460314869880676, "sibling_score": 0.8460314869880676, "answer_score": null, "sibling_qid": 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ship", "family": "Ship Construction & Stability", "subtopic": "", "tid": "KOL-2021-12-0578", "tray": "new", "candidates": [ { "answer_id": "STRSTR-298-001", "score": 0.6400482058525085, "sibling_score": 0.6400482058525085, "answer_score": null, "sibling_qid": "MUM-2026-04-0875-Q005", "sibling_text": "what types of stress in ships", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "What is stress, and what types of stress are commonly discussed in ships?", "cross_family": true }, { "answer_id": "RES-PROP-P01-002", "score": 0.5949569344520569, "sibling_score": 0.5949569344520569, "answer_score": null, "sibling_qid": "MUM-2026-01-0696-Q001S4", "sibling_text": "different types of ship resistance", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Resistance types and methods of reducing them", "cross_family": false }, { "answer_id": "AEGOV-004", "score": 0.5936248302459717, "sibling_score": 0.5936248302459717, "answer_score": 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mlc certificate under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false }, { "answer_id": "MLC-WRH-B-002", "score": 0.3111209571361542, "sibling_score": 0.3111209571361542, "answer_score": null, "sibling_qid": "MUM-2022-07-0027-Q005", "sibling_text": "mlc 2006 wages rest hours", "sibling_family": "MLC", "via": "sibling", "answer_title": "Work and rest hours under MLC — the criteria, the weekly limit, the intervals", "cross_family": false } ] }, { "qid": "KOL-2021-12-0579-Q001", "text": "Type of ship sailed", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2021-12-0579", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8460314869880676, "sibling_score": 0.8460314869880676, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": 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"STRSTR-298-001", "score": 0.6400482058525085, "sibling_score": 0.6400482058525085, "answer_score": null, "sibling_qid": "MUM-2026-04-0875-Q005", "sibling_text": "what types of stress in ships", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "What is stress, and what types of stress are commonly discussed in ships?", "cross_family": true }, { "answer_id": "RES-PROP-P01-002", "score": 0.5949569344520569, "sibling_score": 0.5949569344520569, "answer_score": null, "sibling_qid": "MUM-2026-01-0696-Q001S4", "sibling_text": "different types of ship resistance", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Resistance types and methods of reducing them", "cross_family": false }, { "answer_id": "AEGOV-004", "score": 0.5936248302459717, "sibling_score": 0.5936248302459717, "answer_score": null, "sibling_qid": "MUM-2026-03-1289-Q003", "sibling_text": "gov working when sudden load is applied how it takes care of the load types of ships sailed", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Load Response, Droop and Load Balancing", "cross_family": true } ] }, { "qid": "KOL-2021-12-0587-Q001", "text": "Mlc 5 elements name", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOL-2021-12-0587", "tray": "new", "candidates": [ { "answer_id": "CLC-CIV-B-003", "score": 0.4791651964187622, "sibling_score": 0.4791651964187622, "answer_score": null, "sibling_qid": "KOL-2020-02-0392-Q002", "sibling_text": "llmc prescise 5 words", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "LLMC: purpose, scope and limitation of maritime claims", "cross_family": true }, { "answer_id": "ISMNC-002", "score": 0.45021939277648926, "sibling_score": 0.45021939277648926, "answer_score": null, "sibling_qid": "MUM-2026-01-0685-Q005", "sibling_text": "mlc mnc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a major non-conformity under the ISM Code? Give the definition and name some.", "cross_family": true }, { "answer_id": "ENG-NOM-006", "score": 0.40719133615493774, "sibling_score": 0.40719133615493774, "answer_score": 0.26484563648700715, "sibling_qid": "KOL-2022-09-4015-Q005", "sibling_text": "what is nomeclature of me and mc", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Short-form asks: SMC-C, LMC, and ME vs MC quickly", "cross_family": true } ] }, { "qid": "KOL-2021-12-0588-Q002", "text": "Type of ship you sailed", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2021-12-0588", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8159856796264648, "sibling_score": 0.8159856796264648, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8150340914726257, "sibling_score": 0.8150340914726257, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.7773915529251099, "sibling_score": 0.7773915529251099, "answer_score": null, "sibling_qid": "MUM-2026-02-1280-Q001", "sibling_text": "type of ship done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false } ] }, { "qid": "KOL-2021-12-0588-Q003", "text": "what is cell guide?", "family": "Cargo Ops - 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Combustion, Power & Performance", "via": "sibling", "answer_title": "What is Pmax on your engine?", "cross_family": true } ] }, { "qid": "KOL-2021-12-1910-Q004", "text": "Trunk type boiler and consturction and tests.", "family": "Boilers - Construction & Components", "subtopic": "Boiler Types / Construction", "tid": "KOL-2021-12-1910", "tray": "new", "candidates": [ { "answer_id": "BLR-SURV-P02-004", "score": 0.5970776081085205, "sibling_score": 0.5970776081085205, "answer_score": null, "sibling_qid": "MUM-2026-06-3564-Q002", "sibling_text": "tests on boiler structure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": true }, { "answer_id": "BLR-DRUM-002", "score": 0.5533111691474915, "sibling_score": 0.5533111691474915, "answer_score": null, "sibling_qid": "MUM-2026-06-3660-Q005", "sibling_text": "boiler type and boiler construction", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Steam-drum construction, material and plate manufacture, and construction-stage tests", "cross_family": false }, { "answer_id": "EGB-003", "score": 0.5216330289840698, "sibling_score": 0.5216330289840698, "answer_score": null, "sibling_qid": "KOL-2017-03-1281-Q007", "sibling_text": "boiler type egb cross questioning", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "What is the exhaust gas boiler, how does it recover waste heat, and how is steam raised at sea?", "cross_family": false } ] }, { "qid": "KOL-2021-12-1911-Q003", "text": "How the load from cylinder head transferred to bedplate, and to which part of bedplate?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Bedplate / A-Frame", "tid": "KOL-2021-12-1911", "tray": "new", "candidates": [ { "answer_id": "TR-TB-PA-001", "score": 0.6494529247283936, "sibling_score": 0.6494529247283936, "answer_score": 0.49488103687763213, "sibling_qid": "KOL-2024-04-3686-Q003", "sibling_text": "how firing forces transmitted tie rods arrangement how fitted how crankshaft rests on bedplate how bed plate girders fitted", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Function of tie rods and the firing-load path", "cross_family": false }, { "answer_id": "CHK-330-004", "score": 0.5700364708900452, "sibling_score": 0.5700364708900452, "answer_score": null, "sibling_qid": "MUM-2026-03-1306-Q014S4", "sibling_text": "bed plate parts choking arrangement alignment of shaft intermediate shaft take out procedure", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Chocking arrangement on the main engine bedplate seating", "cross_family": false }, { "answer_id": "PRE-TEN-002", "score": 0.5661361813545227, "sibling_score": 0.5661361813545227, "answer_score": null, "sibling_qid": "MUM-2022-11-2717-Q004", "sibling_text": "cyl head bolt elongated reasons", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Bolt elongation — what it is, why a cylinder-head bolt elongates, and the parts affected", "cross_family": false } ] }, { "qid": "KOL-2021-12-2520-Q002", "text": "internal safety in windings of alternator?, how to know diode failure without manual diode test?", "family": "Electrical - Generator & Alternator", "subtopic": "Diode Short / Open", "tid": "KOL-2021-12-2520", "tray": "review", "candidates": [ { "answer_id": "ALT-MAINT-A-001", "score": 0.7149320244789124, "sibling_score": 0.7149320244789124, "answer_score": null, "sibling_qid": "KOL-2019-12-2358-Q001", "sibling_text": "alternator maintenance on electrical side how to test diode", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Routine maintenance & care of a ship’s alternator", "cross_family": false }, { "answer_id": "DIODESO-001", "score": 0.6882222294807434, "sibling_score": 0.6882222294807434, "answer_score": 0.5039927959442139, "sibling_qid": "NOI-2026-09-0020-Q007", "sibling_text": "what will happen to running alternator if one diode get open if diode get short", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Two alternators in parallel — one rotating rectifier diode goes short circuit. 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Liner / piston / manifold-bolt removal problems", "cross_family": true } ] }, { "qid": "KOL-2021-12-3499-Q009", "text": "How to weld aluminium and steel ?", "family": "Workshop & Welding", "subtopic": "Welding / NDT / Materials", "tid": "KOL-2021-12-3499", "tray": "review", "candidates": [ { "answer_id": "WELD-B-004", "score": 0.8037810921669006, "sibling_score": 0.8037810921669006, "answer_score": 0.5992675662040711, "sibling_qid": "KOL-2025-07-3831-Q003", "sibling_text": "aluminium welding with steel", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Joining dissimilar metals — aluminium to steel, and explosive welding", "cross_family": false }, { "answer_id": "WELD-PATM-007", "score": 0.7448068857192993, "sibling_score": 0.7448068857192993, "answer_score": null, "sibling_qid": "KOL-2021-07-3418-Q002", "sibling_text": "what is cladding plasma welding and how steel is joint to aluminium", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Plasma spraying / coating / cladding", "cross_family": false }, { "answer_id": "WELD-PATM-003", "score": 0.7418268918991089, "sibling_score": 0.7418268918991089, "answer_score": null, "sibling_qid": "KOL-2018-05-3150-Q001", "sibling_text": "how do you weld steel with aluminium for superstructure what filler metal used for tig in this case", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "TIG welding – process, shielding gas, advantages, uses", "cross_family": false } ] }, { "qid": "KOL-2021-12-3501-Q002", "text": "Safety valve, checks and accumulation test", "family": "Boilers - 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Distribution & MSB", "subtopic": "Cable Types & Insulation", "tid": "KOL-2021-12-3998", "tray": "new", "candidates": [ { "answer_id": "CABLE-INSUL-D-002", "score": 0.6081857681274414, "sibling_score": 0.6081857681274414, "answer_score": 0.47929660379886624, "sibling_qid": "KOL-2017-12-2164-Q001", "sibling_text": "armour of cable", "sibling_family": "", "via": "sibling", "answer_title": "Armouring, sheathing and flame-retardant / FRLS cable", "cross_family": false }, { "answer_id": "CBL-INS-B-002", "score": 0.5670563578605652, "sibling_score": 0.5670563578605652, "answer_score": 0.3853522688150406, "sibling_qid": "KOL-2021-03-2436-Q001", "sibling_text": "armour cable draw the cross section and the components of cable insulation material", "sibling_family": "", "via": "sibling", "answer_title": "Layers and construction of a shipboard cable", "cross_family": false }, { "answer_id": "CABLE-INS-C-001", "score": 0.5581201314926147, "sibling_score": 0.5581201314926147, "answer_score": null, "sibling_qid": "KOL-2016-12-0037-Q008", "sibling_text": "what decides current carrying capacity of a cable purpose of armouring", "sibling_family": "", "via": "sibling", "answer_title": "Ordering & selecting a cable; what decides current-carrying capacity", "cross_family": false } ] }, { "qid": "KOL-2022-01-0590-Q005", "text": "details on tank construction of lng tankers", "family": "Cargo Ops - Gas Carriers", "subtopic": "Cargo Tank Construction", "tid": "KOL-2022-01-0590", "tray": "review", "candidates": [ { "answer_id": "GC-TANK-004", "score": 0.677202045917511, "sibling_score": 0.677202045917511, "answer_score": 0.5378456354141236, "sibling_qid": "KOL-2025-04-0931-Q007", "sibling_text": "cargo tank construction lpg carrier int", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Gas-carrier cargo tank construction: materials, insulation, fixing and tank safeties", "cross_family": false }, { "answer_id": "GC-TANK-005", "score": 0.6750050187110901, "sibling_score": 0.6750050187110901, "answer_score": 0.5777994781732559, "sibling_qid": "KOC-2021-07-0015-Q002", "sibling_text": "lng tank construction type material insulation fire fighting medium moss type tank advantages", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "LNG Moss-type cargo tank: construction and advantages", "cross_family": false }, { "answer_id": "GC-TANK-001", "score": 0.663160502910614, "sibling_score": 0.663160502910614, "answer_score": 0.5120632588863373, "sibling_qid": "MUM-2025-09-1196-Q014", "sibling_text": "type of tanks for lng", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Main cargo containment and independent tank types on LPG and LNG carriers", "cross_family": false } ] }, { "qid": "KOL-2022-01-0592-Q001", "text": "Type of ship sailed", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2022-01-0592", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8460314869880676, "sibling_score": 0.8460314869880676, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8450428247451782, "sibling_score": 0.8450428247451782, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7928010821342468, "sibling_score": 0.7928010821342468, "answer_score": null, "sibling_qid": "CHE-2026-03-0253-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "KOL-2022-01-0592-Q010", "text": "Hazardous area on tanker with respect of electricity", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOL-2022-01-0592", "tray": "review", "candidates": [ { "answer_id": "TNK-SAFE-BF26-003", "score": 0.7332285642623901, "sibling_score": 0.7332285642623901, "answer_score": 0.5911790162324905, "sibling_qid": "MUM-2026-06-3369-Q003", "sibling_text": "electrical safeties related to tanker on deck", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What safeties, including electrical safeties and Ex ratings, are provided on the deck of a tanker?", "cross_family": false }, { "answer_id": "ELEC-SAFE-010", "score": 0.712374746799469, "sibling_score": 0.712374746799469, "answer_score": 0.581680691242218, "sibling_qid": "MUM-2026-09-3900-Q004", "sibling_text": "tanker safety in electrical", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Electrical safety during bunkering and tanker bunker operations", "cross_family": false }, { "answer_id": "TNK-SAFE-BF26-002", "score": 0.6747453808784485, "sibling_score": 0.6747453808784485, "answer_score": null, "sibling_qid": "MUM-2023-09-1400-Q003", "sibling_text": "electrical safeties installed inside cargo tank", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What safeties are provided on the cargo tanks of an oil, crude or chemical tanker?", "cross_family": false } ] }, { "qid": "KOL-2022-01-0594-Q003", "text": "how fog horn is operated", "family": "Auxiliary Equipment", "subtopic": "air horn", "tid": "KOL-2022-01-0594", "tray": "new", "candidates": [ { "answer_id": "FIRE-P02-02", "score": 0.5121047496795654, "sibling_score": 0.5121047496795654, "answer_score": null, "sibling_qid": "CHE-2026-02-0117-Q006", "sibling_text": "hi fog operational check", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist — routine testing, alarms and 2/E maintenance", "cross_family": true }, { "answer_id": "HKC-IHM-A-001", "score": 0.5103746652603149, "sibling_score": 0.5103746652603149, "answer_score": null, "sibling_qid": "KOC-2024-12-0485-Q013", "sibling_text": "honking convention", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Hong Kong Convention — what it is and what it requires", "cross_family": true }, { "answer_id": "IR-TEST-D-018", "score": 0.5008252859115601, "sibling_score": 0.5008252859115601, "answer_score": null, "sibling_qid": "KOL-2023-02-2638-Q004", "sibling_text": "you operate the motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "‘You operate the motor’ — running a motor with low IR (declared-interpretation)", "cross_family": true } ] }, { "qid": "KOL-2022-01-0595-Q001", "text": "What is Seal Plate in container ships?", "family": "Cargo Ops - Containers", "subtopic": "TEU", "tid": "KOL-2022-01-0595", "tray": "new", "candidates": [ { "answer_id": "MR-DS-PV-B-002", "score": 0.5608773231506348, "sibling_score": 0.5608773231506348, "answer_score": null, "sibling_qid": "KOC-2023-03-0172-Q002", "sibling_text": "types of deck seals asking for container guys also prepare ig system accordingly", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "2. Types, construction, and regulatory provisions of tanker deck seals", "cross_family": true }, { "answer_id": "SOLAS12-BC-B-001", "score": 0.5597578883171082, "sibling_score": 0.5597578883171082, "answer_score": null, "sibling_qid": "MUM-2026-04-0884-Q002", "sibling_text": "safeties in container ship for container", "sibling_family": "Cargo Ops - Containers", "via": "sibling", "answer_title": "Additional safety measures for bulk carriers (SOLAS Chapter XII)", "cross_family": false }, { "answer_id": "CONT-STAB-001", "score": 0.5291870832443237, "sibling_score": 0.5291870832443237, "answer_score": null, "sibling_qid": "MUM-2026-08-3829-Q004", "sibling_text": "container loading on deck affects", "sibling_family": "Cargo Ops - Containers", "via": "sibling", "answer_title": "Loading containers on deck / at higher tiers — effect on stability and how to improve it", "cross_family": false } ] }, { "qid": "KOL-2022-01-0595-Q002", "text": "What are the functions of Ship Security Plan? What are the contents of a Ship Security Plan?", "family": "ISPS", "subtopic": "SSP / SSAS / SSO / CSO", "tid": "KOL-2022-01-0595", "tray": "review", "candidates": [ { "answer_id": "ISPS-SSP-P01-001", "score": 0.7907276153564453, "sibling_score": 0.7907276153564453, "answer_score": 0.5832498550415038, "sibling_qid": "KOC-2024-07-0360-Q008", "sibling_text": "ship security plan contents", "sibling_family": "ISPS", "via": "sibling", "answer_title": "Ship Security Plan (SSP): purpose, scope & contents", "cross_family": false }, { "answer_id": "ISPS-SSP-P02-001", "score": 0.788552463054657, "sibling_score": 0.788552463054657, "answer_score": 0.5775453984737396, "sibling_qid": "KOC-2026-08-2102-Q001", "sibling_text": "contents of ship security plan", "sibling_family": "ISPS", "via": "sibling", "answer_title": "Ship Security Plan (SSP) — purpose, scope and contents", "cross_family": false }, { "answer_id": "ISPS-P03-001", "score": 0.7550881505012512, "sibling_score": 0.7550881505012512, "answer_score": null, "sibling_qid": "KOC-2023-11-0239-Q007", "sibling_text": "contents of ship security plan role of cso", "sibling_family": "ISPS", "via": "sibling", "answer_title": "Company Security Officer (CSO): duties, functions and responsibilities", "cross_family": false } ] }, { "qid": "KOL-2022-01-0596-Q001", "text": "Classification society issue which certificate? How much is the validity of certificate of class? What is the responsibility of owner? As CE and 2E what is your responsibility if any damage happened to ship? He want to listen owner or CE will request for survey. Asked condition of class also. What you will do if you are in the sea?", "family": "Surveys - Statutory", "subtopic": "Condition of Class", "tid": "KOL-2022-01-0596", "tray": "review", "candidates": [ { "answer_id": "CERT-LIST-P01-001", "score": 0.7226614952087402, "sibling_score": 0.7226614952087402, "answer_score": null, "sibling_qid": "KOL-2020-06-3340-Q004", "sibling_text": "which certificate will tell u about the class to which ship is classified", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "List the statutory certificates carried onboard a ship.", "cross_family": false }, { "answer_id": "IACS-324-002", "score": 0.7098004817962646, "sibling_score": 0.7098004817962646, "answer_score": null, "sibling_qid": "KOC-2023-05-0192-Q004", "sibling_text": "y ship need to be classed classification society functions", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "2. What is a classification society, why does a ship need class, and what are its functions?", "cross_family": false }, { "answer_id": "CERT-LIST-P02-005", "score": 0.701036274433136, "sibling_score": 0.701036274433136, "answer_score": 0.5323100417852401, "sibling_qid": "MUM-2026-06-3395-Q001", "sibling_text": "why class certificate is there for ship", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Class certificate / classification certificate", "cross_family": false } ] }, { "qid": "KOL-2022-01-0596-Q002", "text": "LRIT", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "KOL-2022-01-0596", "tray": "new", "candidates": [ { "answer_id": "EPIRB-SART-001", "score": 0.47180238366127014, "sibling_score": 0.47180238366127014, "answer_score": null, "sibling_qid": "KOL-2017-09-0112-Q004", "sibling_text": "lrit vdr epirb sart mob marker", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What is the difference between EPIRB and SART? Give the function, construction, use and operation of each.", "cross_family": true }, { "answer_id": "TONN-007", "score": 0.4393453001976013, "sibling_score": 0.4393453001976013, "answer_score": null, "sibling_qid": "MUM-2026-06-3480-Q005", "sibling_text": "grt nrt", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Differentiate GT, NT, GRT/NRT, DWT, Lightweight and Displacement", "cross_family": true }, { "answer_id": "LCF-LCB-002", "score": 0.4151439070701599, "sibling_score": 0.4151439070701599, "answer_score": null, "sibling_qid": "MUM-2023-06-0109-Q007", "sibling_text": "lcf trim relationship", "sibling_family": "", "via": "sibling", "answer_title": "How does LCF relate to trim, and why does trim change about LCF rather than LCB?", "cross_family": false } ] }, { "qid": "KOL-2022-01-1652-Q001", "text": "Type of engine (Rt-flex)", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOL-2022-01-1652", "tray": "review", "candidates": [ { "answer_id": "RTFLEX-319-002", "score": 0.7429245114326477, "sibling_score": 0.7429245114326477, "answer_score": 0.5120126962661743, "sibling_qid": "KOL-2016-11-3017-Q001", "sibling_text": "engine type rt flex", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "RT-flex overview, 'describe your engine', working and the type designation", "cross_family": true }, { "answer_id": "MEB-MEC-P03-005", "score": 0.7029255032539368, "sibling_score": 0.7029255032539368, "answer_score": 0.4559965074062347, "sibling_qid": "MUM-2022-07-1014-Q004", "sibling_text": "types of me engine and rt flex", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "MAN ME vs Sulzer / Wärtsilä RT-flex", "cross_family": true }, { "answer_id": "MCC-MEB-P01-001", "score": 0.6402886509895325, "sibling_score": 0.6402886509895325, "answer_score": null, "sibling_qid": "MUM-2026-09-3997-Q002", "sibling_text": "type of engine worked me mcc me b and rta", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "MC-C (\"Compact\") engine — design and the main constructional differences from MC", "cross_family": false } ] }, { "qid": "KOL-2022-01-1652-Q006", "text": "Freshwater generator shell temp rising.. Reasons", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "KOL-2022-01-1652", "tray": "review", "candidates": [ { "answer_id": "JCW-SYS-003", "score": 0.6588196158409119, "sibling_score": 0.6588196158409119, "answer_score": 0.5138897955417633, "sibling_qid": "MUM-2026-05-3281-Q005", "sibling_text": "me jcw temp rise by 5deg jcw cooler is sea water cooled how you will come to know which side is leaking alot of questions on this", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "ME jacket-water temperature is rising on all units and will not hold setpoint - reasons, your actions as 2/E, and telling which side of the cooler is leaking", "cross_family": false }, { "answer_id": "LO-CLR-003", "score": 0.6335866451263428, "sibling_score": 0.6335866451263428, "answer_score": 0.525123056769371, "sibling_qid": "KOL-2021-07-3416-Q002", "sibling_text": "generator lo temperature rises reason", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What makes a generator's lube-oil temperature rise, including cooler problems?", "cross_family": true }, { "answer_id": "JCW-SYS-001", "score": 0.6238394975662231, "sibling_score": 0.6238394975662231, "answer_score": null, "sibling_qid": "KOL-2016-08-1229-Q003", "sibling_text": "why jacket water temp is maintained high in new engine how much then he told me in new engines it increased to 120 and said to check this and find out the reasons", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "How is jacket water temperature controlled - HT/LT controllers, cascade, why it is kept high, and testing the thermostatic valve", "cross_family": false } ] }, { "qid": "KOL-2022-01-2525-Q001", "text": "Types of ship sailed on", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2022-01-2525", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.812878429889679, "sibling_score": 0.812878429889679, "answer_score": null, "sibling_qid": "CHE-2026-09-3938-Q001", "sibling_text": "types of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.787338137626648, "sibling_score": 0.787338137626648, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7685254216194153, "sibling_score": 0.7685254216194153, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "KOL-2022-01-2528-Q001", "text": "How brushless alternator works? Construction wise", "family": "Electrical - Generator & Alternator", "subtopic": "Brushless Alternator", "tid": "KOL-2022-01-2528", "tray": "review", "candidates": [ { "answer_id": "BRUSHALT-A-001", "score": 0.7844442129135132, "sibling_score": 0.7844442129135132, "answer_score": 0.5744700968265534, "sibling_qid": "MUM-2026-06-3522-Q007", "sibling_text": "brushless alternators construction", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01 · Working principle of the brushless alternator / brushless excitation systemHigh", "cross_family": false }, { "answer_id": "ALT-GEN-P03-003", "score": 0.5642153084278106, "sibling_score": null, "answer_score": 0.5642153084278106, "sibling_qid": "", "sibling_text": "brushless alternator advantages and brushed vs brushless comparison brushed dc excitation reaches rotor through brushes and slip rings brushless avr feeds exciter field exciter output is rectified by rotating diodes to feed main rotor", "sibling_family": "", "via": "answer_title", "answer_title": "Brushless alternator advantages and brushed vs brushless comparison", "cross_family": false }, { "answer_id": "ALT-GEN-P03-005", "score": 0.5551835983991623, "sibling_score": null, "answer_score": 0.5551835983991623, "sibling_qid": "", "sibling_text": "alternator construction parts and direct connection main parts stator rotor field shaft bearings frame exciter diode wheel or brushes avr terminal box cooling heaters and sensors stator carries the three phase output rotor carries the magnetic field", "sibling_family": "", "via": "answer_title", "answer_title": "Alternator construction, parts, and direct connection", "cross_family": false } ] }, { "qid": "KOL-2022-01-2532-Q003", "text": "What all things mentioned in Alternator name plate.", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator / Generator", "tid": "KOL-2022-01-2532", "tray": "review", "candidates": [ { "answer_id": "ALT-GEN-P02-001", "score": 0.84271639585495, "sibling_score": 0.84271639585495, "answer_score": 0.5298340439796447, "sibling_qid": "CHE-2026-08-0667-Q008", "sibling_text": "name plate specification of alternator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Alternator/generator specifications, ratings and ship electrical supply details", "cross_family": false }, { "answer_id": "BL-ALT-C-002", "score": 0.5378514617681504, "sibling_score": null, "answer_score": 0.5378514617681504, "sibling_qid": "", "sibling_text": "how to identify onboard that an alternator is brushless open the exciter non drive end cover no brushes no brush boxes or springs no slip rings no carbon dust brushless defining proof no slip rings on the main rotor a visible shaft mounted rotating rectifier diode wheel plus surge suppressor", "sibling_family": "", "via": "answer_title", "answer_title": "How to identify onboard that an alternator is brushless", "cross_family": false }, { "answer_id": "ALT-MAINT-C-004", "score": 0.5155305981636047, "sibling_score": null, "answer_score": 0.5155305981636047, "sibling_qid": "", "sibling_text": "4 what common alternator defects are looked for during maintenance electrical insulation degradation breakdown moisture oil dust ageing thermal winding faults inter turn phase to earth rotating diode failure brushless avr faults loose overheating terminal connections brush slipring wear brushed mechanical bearing wear uneven air gap eccentricity vibration coupling alignment issues fan damage", "sibling_family": "", "via": "answer_title", "answer_title": "4. What common alternator defects are looked for during maintenance?", "cross_family": false } ] }, { "qid": "KOL-2022-01-3504-Q001", "text": "What practical experience of overhaul have you got?", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOL-2022-01-3504", "tray": "new", "candidates": [ { "answer_id": "DUS-P1-01", "score": 0.5530294179916382, "sibling_score": 0.5530294179916382, "answer_score": null, "sibling_qid": "MUM-2022-07-2136-Q009", "sibling_text": "overhauling", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Drydock preparation as 2E — full workflow from office confirmation to entry", "cross_family": true }, { "answer_id": "MAIN-BRG-B-001", "score": 0.5515791177749634, "sibling_score": 0.5515791177749634, "answer_score": null, "sibling_qid": "KOC-2024-07-1845-Q002", "sibling_text": "me main brng overhauling procedure", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you open up / remove / overhaul a main-engine main bearing?", "cross_family": true }, { "answer_id": "XHEAD-303-007", "score": 0.5371209383010864, "sibling_score": 0.5371209383010864, "answer_score": null, "sibling_qid": "KOC-2025-04-1037-Q017", "sibling_text": "x head overhauloverhaul", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead inspection, survey and overhaul, including in-place overhaul", "cross_family": true } ] }, { "qid": "KOL-2022-01-3507-Q004", "text": "after decarb your ae not giving full performance What checks will you do Got func 6 Motor - repeat", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Decarb / Balancing / High Exhaust Temperature", "tid": "KOL-2022-01-3507", "tray": "review", "candidates": [ { "answer_id": "AEDEC-291-008", "score": 0.668746292591095, "sibling_score": 0.668746292591095, "answer_score": 0.513847541809082, "sibling_qid": "KOL-2020-11-3357-Q002", "sibling_text": "after a e decarb rpm is not picking up what are the reasons", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "8. Post-decarb abnormal running — overspeed, RPM, air-start, LO", "cross_family": false }, { "answer_id": "AEDEC-291-004", "score": 0.6673173308372498, "sibling_score": 0.6673173308372498, "answer_score": null, "sibling_qid": "KOL-2019-11-3298-Q002", "sibling_text": "ae full oh carried out ae running on no load what all things u will check as 2nd eng not satisfied with answer", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "4. Checks on no-load and before taking load", "cross_family": false }, { "answer_id": "AEDEC-291-006", "score": 0.6377875804901123, "sibling_score": 0.6377875804901123, "answer_score": null, "sibling_qid": "MUM-2026-04-2669-Q002", "sibling_text": "3e doing decarb checks on piston", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "6. Clearances, measurements, piston checks, ovality", "cross_family": false } ] }, { "qid": "KOL-2022-01-3508-Q004", "text": "Maintenance of neumatic system", "family": "Air Compressor", "subtopic": "Reciprocating Compressor", "tid": "KOL-2022-01-3508", "tray": "review", "candidates": [ { "answer_id": "AUC-P03-03", "score": 0.7062724232673645, "sibling_score": 0.7062724232673645, "answer_score": 0.4694738268852234, "sibling_qid": "KOL-2019-07-3260-Q006", "sibling_text": "maintenance on pneumatic control lines", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Pneumatic nozzle-flapper system and control-air line maintenance", "cross_family": true }, { "answer_id": "AIRBTL-CORR-001", "score": 0.6892924904823303, "sibling_score": 0.6892924904823303, "answer_score": null, "sibling_qid": "MUM-2026-06-3574-Q002", "sibling_text": "air reservoir routine maintenance", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "AIRBTL-CORR-01 — Air bottle survey and internal inspection — preparation, checks and what you show the surveyor", "cross_family": false }, { "answer_id": "CTRL-TL-010", "score": 0.6762683987617493, "sibling_score": 0.6762683987617493, "answer_score": null, "sibling_qid": "KOL-2019-05-2291-Q003", "sibling_text": "peumatic controller maintenance", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Pneumatic control: nozzle-flapper, DP, actuators and fail-safe", "cross_family": true } ] }, { "qid": "KOL-2022-01-3509-Q005", "text": "why hot work can't be done outside work shop?", "family": "Workshop & Welding", "subtopic": "Hot Work", "tid": "KOL-2022-01-3509", "tray": "new", "candidates": [ { "answer_id": "WBS-C-003", "score": 0.5845270752906799, "sibling_score": 0.5845270752906799, "answer_score": 0.43140888810157774, "sibling_qid": "KOC-2025-01-1476-Q002", "sibling_text": "how to carry out hot work near f o tank not accepting anything", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Shipboard hot work — the permit, the designated area, and work near fuel tanks", "cross_family": false }, { "answer_id": "WBS-C-001", "score": 0.5318647623062134, "sibling_score": 0.5318647623062134, "answer_score": null, "sibling_qid": "MUM-2025-11-2497-Q002", "sibling_text": "welding in workshop your suggestion", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding, brazing and soldering — what they are, the shipboard processes, and workshop safety", "cross_family": false }, { "answer_id": "WELD-B-007", "score": 0.5185361504554749, "sibling_score": 0.5185361504554749, "answer_score": null, "sibling_qid": "KOL-2020-11-1563-Q003", "sibling_text": "overhed welding precarious only from welding point of view", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Overhead welding — precautions, checks and advantages", "cross_family": false } ] }, { "qid": "KOL-2022-01-3510-Q006", "text": "Holding down bolts slacking frequently", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Holding Down Bolts", "tid": "KOL-2022-01-3510", "tray": "review", "candidates": [ { "answer_id": "TBR-TT-P02-002", "score": 0.6681780219078064, "sibling_score": 0.6681780219078064, "answer_score": null, "sibling_qid": "MUM-2025-07-1148-Q004", "sibling_text": "tie bolts slack what will be the indications", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Checking tie rod tightness / slackness — stopped and running", "cross_family": false }, { "answer_id": "TBR-TT-P02-001", "score": 0.6553853750228882, "sibling_score": 0.6553853750228882, "answer_score": null, "sibling_qid": "CHE-2026-05-0641-Q012", "sibling_text": "holding down bolts checks and tightening", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Tie rod tightening / hydraulic tensioning procedure", "cross_family": false }, { "answer_id": "FB-COUP-001", "score": 0.63376384973526, "sibling_score": 0.63376384973526, "answer_score": 0.4406534373760223, "sibling_qid": "KOC-2026-09-2175-Q005", "sibling_text": "fitted bolts where", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What fitted bolts are, what they do, and where they sit onboard", "cross_family": false } ] }, { "qid": "KOL-2022-01-3511-Q001", "text": "Suction valve loss and delivery valve loss..", "family": "Air Compressor", "subtopic": "Reciprocating Compressor", "tid": "KOL-2022-01-3511", "tray": "new", "candidates": [ { "answer_id": "AIRCOMP-PERF-006", "score": 0.6271885633468628, "sibling_score": 0.6271885633468628, "answer_score": 0.5173585534095764, "sibling_qid": "KOL-2018-04-1860-Q003", "sibling_text": "suction loss and delivery loss in aircompressor", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "What are suction loss and delivery loss in an air compressor?", "cross_family": false }, { "answer_id": "AC-VE-003", "score": 0.6059213280677795, "sibling_score": 0.6059213280677795, "answer_score": 0.4690450072288513, "sibling_qid": "KOL-2017-07-1307-Q003", "sibling_text": "suction loss and discharge loss in compressor", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "What factors affect volumetric efficiency, including suction and discharge losses?", "cross_family": false }, { "answer_id": "MAC-598-001", "score": 0.5928813815116882, "sibling_score": 0.5928813815116882, "answer_score": null, "sibling_qid": "MUM-2026-02-1257-Q005", "sibling_text": "air compressor suction and delivery valve ovarhaul procedure", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "The main air compressor valve — arrangement, parts, and why the construction is so complex", "cross_family": false } ] }, { "qid": "KOL-2022-01-3511-Q002", "text": "How reducing valve work..", "family": "Auxiliary Equipment", "subtopic": "VALVES", "tid": "KOL-2022-01-3511", "tray": "new", "candidates": [ { "answer_id": "FWG-RO-003", "score": 0.5802545547485352, "sibling_score": 0.5802545547485352, "answer_score": null, "sibling_qid": "MUM-2025-12-2879-Q004", "sibling_text": "fwg production reduce from rated valve checks and action", "sibling_family": "Fresh Water & Domestic Systems", "via": "sibling", "answer_title": "The FWG is not producing enough water or its efficiency has dropped. Reasons, checks and action?", "cross_family": true }, { "answer_id": "MAST-PVA-004", "score": 0.5415076613426208, "sibling_score": 0.5415076613426208, "answer_score": null, "sibling_qid": "KOC-2026-08-2163-Q010", "sibling_text": "explain the procedure of how pressure reduction valve works with diagram", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "P/V valve & P/V breaker — pressure/vacuum settings and the basis", "cross_family": true }, { "answer_id": "SLOWTURN-BT-001", "score": 0.5243586897850037, "sibling_score": 0.5243586897850037, "answer_score": null, "sibling_qid": "MUM-2026-05-3176-Q006", "sibling_text": "how slow turning valve works", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Slow turning of the main engine — the slow-turning valve and the failure alarm", "cross_family": true } ] }, { "qid": "KOL-2022-01-3514-Q004", "text": "Boiler safety valve complete overhaul and checks on components?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2022-01-3514", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P01-001", "score": 0.7626889944076538, "sibling_score": 0.7626889944076538, "answer_score": null, "sibling_qid": "KOL-2026-01-3900-Q005", "sibling_text": "check on safety valve during overhaul", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.7284371256828308, "sibling_score": 0.7284371256828308, "answer_score": null, "sibling_qid": "CHE-2026-05-0647-Q007", "sibling_text": "boiler safety valve maintenance", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.7238953709602356, "sibling_score": 0.7238953709602356, "answer_score": null, "sibling_qid": "KOL-2021-08-1614-Q006", "sibling_text": "boiler survey interval types of safety valves improved high lift safety valve in detail", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOL-2022-01-3999-Q007", "text": "Multistage vacuum in freshwater generator? is vacuum same in each stage? fns6:", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "KOL-2022-01-3999", "tray": "new", "candidates": [ { "answer_id": "FWG-RO-001", "score": 0.5493899583816528, "sibling_score": 0.5493899583816528, "answer_score": 0.4032426208257675, "sibling_qid": "MUM-2026-07-3709-Q006", "sibling_text": "fresh water generator not getting vacuum why any 6 reasons", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "How is vacuum created in the FWG, why does it run under vacuum, and what if the vacuum will not come?", "cross_family": false }, { "answer_id": "VAC-COND-002", "score": 0.5360674858093262, "sibling_score": 0.5360674858093262, "answer_score": null, "sibling_qid": "KOL-2026-07-4255-Q006", "sibling_text": "fresh water generator not getting vaccum why any 6 reasons", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Low vacuum, suction loss and failure to build vacuum — the reasons", "cross_family": false }, { "answer_id": "AC-STAGE-001", "score": 0.48642122745513916, "sibling_score": 0.48642122745513916, "answer_score": null, "sibling_qid": "KOL-2017-12-1333-Q003", "sibling_text": "why compressor works in stages relation between each stages", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Why multistage compression — advantages over single-stage", "cross_family": true } ] }, { "qid": "KOL-2022-01-4000-Q002", "text": "How many cable coming out from alternator", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Faraday Law", "tid": "KOL-2022-01-4000", "tray": "review", "candidates": [ { "answer_id": "CABLE-INS-E-003", "score": 0.6519712805747986, "sibling_score": 0.6519712805747986, "answer_score": 0.48996764719486235, "sibling_qid": "MUM-2026-07-3811-Q005", "sibling_text": "power cables from alternator to busbar standards", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Cable / conductor arrangement: alternator to MSB", "cross_family": false }, { "answer_id": "SDC-002", "score": 0.6186925172805786, "sibling_score": 0.6186925172805786, "answer_score": null, "sibling_qid": "KOC-2024-01-1325-Q006", "sibling_text": "why 6 terminals in motor why 16 18 connections in alternator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "How do you identify star or delta at the terminal box, and why the terminal counts?", "cross_family": true }, { "answer_id": "CABLE-INSUL-D-001", "score": 0.605533242225647, "sibling_score": 0.605533242225647, "answer_score": null, "sibling_qid": "KOL-2023-01-2634-Q004", "sibling_text": "cable insulation type of alternator 5 over current trip test fu 6", "sibling_family": "", "via": "sibling", "answer_title": "Insulation: materials, classes and required properties", "cross_family": false } ] }, { "qid": "KOL-2022-01-4000-Q003", "text": "Hv circuit breaker in detail. Mainly VCB.", "family": "Electrical - Switchgear & Protection", "subtopic": "Circuit Breakers (ACB / VCB / SF6)", "tid": "KOL-2022-01-4000", "tray": "review", "candidates": [ { "answer_id": "CB-ACBVCBSF6-E-001", "score": 0.7670208215713501, "sibling_score": 0.7670208215713501, "answer_score": 0.514156186580658, "sibling_qid": "MUM-2026-02-1936-Q006", "sibling_text": "type of circuit breaker used for hv i told vcb", "sibling_family": "", "via": "sibling", "answer_title": "What are the common types of circuit breakers used onboard and where are ACB, MCB, MCCB, VCB and SF6 breakers applied?", "cross_family": false }, { "answer_id": "CBKR-H-001", "score": 0.7179641723632812, "sibling_score": 0.7179641723632812, "answer_score": 0.5783005952835083, "sibling_qid": "KOC-2024-12-1454-Q011", "sibling_text": "cb used in hv working of vcb", "sibling_family": "", "via": "sibling", "answer_title": "How do VCB and SF6 breakers work in a high-voltage system, and why are they used instead of an ACB?", "cross_family": false }, { "answer_id": "CB033-C-001", "score": 0.686555027961731, "sibling_score": 0.686555027961731, "answer_score": null, "sibling_qid": "MUM-2026-02-1949-Q011", "sibling_text": "breaker types acb maintenance vcb advantages", "sibling_family": "", "via": "sibling", "answer_title": "How do you carry out maintenance and testing on an ACB / main circuit breaker?", "cross_family": false } ] }, { "qid": "KOL-2022-01-4000-Q004", "text": "All about reverse power", "family": "Electrical - Generator & Alternator", "subtopic": "Reverse Power Trip", "tid": "KOL-2022-01-4000", "tray": "review", "candidates": [ { "answer_id": "RPT-A-002", "score": 0.7390274405479431, "sibling_score": 0.7390274405479431, "answer_score": 0.40253666937351223, "sibling_qid": "KOL-2019-10-2344-Q001", "sibling_text": "reverse power", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Explain reverse power trip", "cross_family": false }, { "answer_id": "RPT-A-001", "score": 0.7152393460273743, "sibling_score": 0.7152393460273743, "answer_score": 0.4425310432910919, "sibling_qid": "KOC-2024-06-1363-Q008", "sibling_text": "what is reverse power", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Reverse power: what it is, why it happens, why we protect against it", "cross_family": false }, { "answer_id": "RPT-A-003", "score": 0.6233975887298584, "sibling_score": 0.6233975887298584, "answer_score": 0.4189435809850693, "sibling_qid": "KOL-2020-06-2383-Q003", "sibling_text": "reverse power trip working", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "How the reverse-power trip works, and the sequence once reverse power develops", "cross_family": false } ] }, { "qid": "KOL-2022-01-4000-Q006", "text": "which excitation system having less time to recover the voltage dip? If static excitation system(I told) then why it not used on ship instead of brushless excitation system", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Faraday Law", "tid": "KOL-2022-01-4000", "tray": "review", "candidates": [ { "answer_id": "BRUSHALT-A-001", "score": 0.6743822693824768, "sibling_score": 0.6743822693824768, "answer_score": null, "sibling_qid": "KOL-2021-10-2498-Q003", "sibling_text": "alternator excitation types which one takes less time to recover voltage which one used more in ships why", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01 · Working principle of the brushless alternator / brushless excitation systemHigh", "cross_family": true }, { "answer_id": "AVR-EXC-D-001", "score": 0.6044175624847412, "sibling_score": 0.6044175624847412, "answer_score": 0.513014879822731, "sibling_qid": "KOC-2024-08-1378-Q008", "sibling_text": "static excitation system", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Static AVR / static excitation — types of AVR, and how the static system works", "cross_family": true }, { "answer_id": "AVR-EXC-E-001", "score": 0.6042143106460571, "sibling_score": 0.6042143106460571, "answer_score": null, "sibling_qid": "KOL-2022-07-2583-Q001", "sibling_text": "static excitation system", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "How does a static AVR / static excitation system work? (draw & explain)", "cross_family": true } ] }, { "qid": "KOL-2022-01-4001-Q003", "text": "High Topland piston advantages", "family": "2-Stroke - Components (Other)", "subtopic": "Piston Rings", "tid": "KOL-2022-01-4001", "tray": "review", "candidates": [ { "answer_id": "PIST-CSI-A-001", "score": 0.7408975958824158, "sibling_score": 0.7408975958824158, "answer_score": 0.3912474751472473, "sibling_qid": "KOL-2025-10-2016-Q005", "sibling_text": "piston top land advantage of high top land", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Oros combustion chamber, high top land and modern 2-stroke piston development", "cross_family": false }, { "answer_id": "PST-CSI-BF-006", "score": 0.7382989525794983, "sibling_score": 0.7382989525794983, "answer_score": 0.5613480329513549, "sibling_qid": "MUM-2026-03-2609-Q003", "sibling_text": "piston high topland benefits", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "The top land of a piston, and the benefits of a high top land", "cross_family": false }, { "answer_id": "PIST-CSI-A-002", "score": 0.6008874177932739, "sibling_score": 0.6008874177932739, "answer_score": null, "sibling_qid": "KOL-2019-08-1477-Q001", "sibling_text": "oros piston high topland draw and explqin advantages", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "2-stroke piston: parts, cooling arrangement and operating stresses", "cross_family": false } ] }, { "qid": "KOL-2022-01-4001-Q005", "text": "Master valve in Refer system", "family": "Refrigeration & AC", "subtopic": "Suction / Discharge Line", "tid": "KOL-2022-01-4001", "tray": "new", "candidates": [ { "answer_id": "TEV-TXV-005", "score": 0.6361779570579529, "sibling_score": 0.6361779570579529, "answer_score": null, "sibling_qid": "KOC-2024-02-0989-Q001", "sibling_text": "throttling valve on refer system working", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Throttling process and superheat control across the TEV", "cross_family": false }, { "answer_id": "RAC-MAT-320-007", "score": 0.6011162400245667, "sibling_score": 0.6011162400245667, "answer_score": null, "sibling_qid": "KOL-2021-07-1603-Q008", "sibling_text": "ac master controller valve", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "7. Automatic temperature and humidity control, and the master controller", "cross_family": false }, { "answer_id": "REF-CYC-002", "score": 0.5939155220985413, "sibling_score": 0.5939155220985413, "answer_score": null, "sibling_qid": "KOL-2022-05-1684-Q009", "sibling_text": "why the master solenoid valve in refrigeration", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "2. Refrigeration plant components and their control functions", "cross_family": false } ] }, { "qid": "KOL-2022-01-4002-Q002", "text": "Continental shelf", "family": "Other Conventions", "subtopic": "UNCLOS", "tid": "KOL-2022-01-4002", "tray": "review", "candidates": [ { "answer_id": "UNCLOS-004", "score": 0.8498675227165222, "sibling_score": 0.8498675227165222, "answer_score": 0.565826827287674, "sibling_qid": "KOL-2026-03-1198-Q008", "sibling_text": "continental shelf", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is the continental shelf under UNCLOS and what is its range?", "cross_family": false }, { "answer_id": "UNCLOS-003", "score": 0.6519727110862732, "sibling_score": 0.6519727110862732, "answer_score": 0.43100783228874207, "sibling_qid": "KOL-2025-09-1054-Q007", "sibling_text": "territorial waters", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What are the maritime zones under UNCLOS — territorial waters, the contiguous zone and the international maritime boundary?", "cross_family": false }, { "answer_id": "UNCLOS-005", "score": 0.6401830315589905, "sibling_score": 0.6401830315589905, "answer_score": 0.4713852763175964, "sibling_qid": "KOC-2024-07-0359-Q001", "sibling_text": "coastal state requirements as per unclos", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is a coastal state under UNCLOS, and how does it differ from the flag state and the port state?", "cross_family": false } ] }, { "qid": "KOL-2022-01-4004-Q004", "text": "fqs in rta engines", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Quality / CCAI", "tid": "KOL-2022-01-4004", "tray": "new", "candidates": [ { "answer_id": "VIT-MECH-B-002", "score": 0.5031622648239136, "sibling_score": 0.5031622648239136, "answer_score": null, "sibling_qid": "KOL-2021-09-1624-Q009", "sibling_text": "vit and fqs", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How VIT is adjusted and set — timing and fuel-quality (FQS) interactions", "cross_family": false }, { "answer_id": "RTFLEX-319-004", "score": 0.497505247592926, "sibling_score": 0.497505247592926, "answer_score": null, "sibling_qid": "CHE-2026-03-0255-Q003", "sibling_text": "how fqs setting done in rt flex engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Common-rail fuel injection: control, timing, volume and FQS setting", "cross_family": true }, { "answer_id": "QCV-001", "score": 0.4749334454536438, "sibling_score": 0.4749334454536438, "answer_score": null, "sibling_qid": "KOL-2022-09-3567-Q006", "sibling_text": "fqs system", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Quick closing valve — construction and what it is", "cross_family": true } ] }, { "qid": "KOL-2022-01-4004-Q008", "text": "boiler swell and shrinkage", "family": "Boilers - Operations & Firing", "subtopic": "Boiler Water Circulation", "tid": "KOL-2022-01-4004", "tray": "review", "candidates": [ { "answer_id": "DP-TX-006", "score": 0.8125002980232239, "sibling_score": 0.8125002980232239, "answer_score": 0.5778531819581986, "sibling_qid": "KOL-2025-08-2012-Q004", "sibling_text": "swell and shrink in boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler swell and shrink in relation to DP level measurement and control", "cross_family": false }, { "answer_id": "LWL-004", "score": 0.7557861804962158, "sibling_score": 0.7557861804962158, "answer_score": 0.5976597458124161, "sibling_qid": "KOL-2021-08-3446-Q003", "sibling_text": "what is swell and shrinkage how swell and shrinkage is nullified in boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "What are swell and shrinkage, and how are they nullified in the boiler?", "cross_family": false }, { "answer_id": "BLR-TUBE-P01-003", "score": 0.6686625480651855, "sibling_score": 0.6686625480651855, "answer_score": null, "sibling_qid": "KOL-2020-11-1557-Q002", "sibling_text": "small boiler tube expansion", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "02. Thermal expansion arrangements for boiler tubes", "cross_family": true } ] }, { "qid": "KOL-2022-01-4005-Q006", "text": "Ship passed through rough weather, what to check for foundation bolts ?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Holding Down Bolts", "tid": "KOL-2022-01-4005", "tray": "review", "candidates": [ { "answer_id": "TBR-TT-P02-002", "score": 0.7114998698234558, "sibling_score": 0.7114998698234558, "answer_score": null, "sibling_qid": "KOL-2021-10-3470-Q006", "sibling_text": "your ship passed from a bad weather and you have to check the tightness of the tie rod bolts how you check by rai sir", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Checking tie rod tightness / slackness — stopped and running", "cross_family": false }, { "answer_id": "BED-CHOCK-001", "score": 0.6496624946594238, "sibling_score": 0.6496624946594238, "answer_score": null, "sibling_qid": "KOL-2026-05-4197-Q004", "sibling_text": "where to check bedplate crack on ship", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "How is the main-engine bedplate fixed to the ship's structure?", "cross_family": false }, { "answer_id": "FB-COUP-001", "score": 0.6490259766578674, "sibling_score": 0.6490259766578674, "answer_score": null, "sibling_qid": "MUM-2023-03-1044-Q004", "sibling_text": "where fitted bolts are present on ship what is the a purpose of fitted bolt", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What fitted bolts are, what they do, and where they sit onboard", "cross_family": false } ] }, { "qid": "KOL-2022-02-0602-Q004", "text": "Standard discharge connection", "family": "MARPOL - Annex I (Oil)", "subtopic": "Standard Discharge Connection", "tid": "KOL-2022-02-0602", "tray": "review", "candidates": [ { "answer_id": "SEW-DISCH-007", "score": 0.8573035001754761, "sibling_score": 0.8573035001754761, "answer_score": 0.42454665899276733, "sibling_qid": "MUM-2026-08-3853-Q007", "sibling_text": "standard discharge connection", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "7. 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Fuel Injection & Pumps", "subtopic": "Fuel Quality / CCAI", "tid": "KOL-2022-02-1662", "tray": "new", "candidates": [ { "answer_id": "VIT-MECH-B-002", "score": 0.6262704730033875, "sibling_score": 0.6262704730033875, "answer_score": 0.34483030587434765, "sibling_qid": "KOL-2017-08-1316-Q006", "sibling_text": "fqs setting adjustment", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How VIT is adjusted and set — timing and fuel-quality (FQS) interactions", "cross_family": false }, { "answer_id": "CPP-ATC-02", "score": 0.6025176048278809, "sibling_score": 0.6025176048278809, "answer_score": 0.4142741128802299, "sibling_qid": "CHE-2026-05-0551-Q012", "sibling_text": "fqs adjustment", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "FQS adjustment — what it is, why used, how set", "cross_family": true }, { "answer_id": "FCL-P02-001", "score": 0.49499356746673584, "sibling_score": 0.49499356746673584, "answer_score": null, "sibling_qid": "MUM-2026-03-2942-Q006", "sibling_text": "3 how to adjust", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel pump / injection timing check, setting, and adjustment", "cross_family": false } ] }, { "qid": "KOL-2022-02-1663-Q002", "text": "Fqs setting, how to change", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Quality / CCAI", "tid": "KOL-2022-02-1663", "tray": "review", "candidates": [ { "answer_id": "VIT-MECH-B-002", "score": 0.7038672566413879, "sibling_score": 0.7038672566413879, "answer_score": 0.26929342448711396, "sibling_qid": "KOL-2017-08-1316-Q006", "sibling_text": "fqs setting adjustment", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How VIT is adjusted and set — timing and fuel-quality (FQS) interactions", "cross_family": false }, { "answer_id": "RTFLEX-319-004", "score": 0.5583928227424622, "sibling_score": 0.5583928227424622, "answer_score": null, "sibling_qid": "CHE-2026-03-0255-Q003", "sibling_text": "how fqs setting done in rt flex engine", "sibling_family": "2-Stroke - 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Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-003", "score": 0.6956870555877686, "sibling_score": 0.6956870555877686, "answer_score": null, "sibling_qid": "KOL-2022-09-3574-Q003", "sibling_text": "accumulation pr test of boiler how much lift of safety v v how to check", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "The accumulation test and the safety valve — required lift, how lift and capacity are verified, and why accumulation must stay inside the limit", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.6901670694351196, "sibling_score": 0.6901670694351196, "answer_score": null, "sibling_qid": "MUM-2026-01-1242-Q010", "sibling_text": "boiler safety valve type and what is left of safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOL-2022-02-2534-Q003", "text": "reverse power factor", "family": "Electrical - Generator & Alternator", "subtopic": "Power Factor", "tid": "KOL-2022-02-2534", "tray": "review", "candidates": [ { "answer_id": "RPT-A-002", "score": 0.762722373008728, "sibling_score": 0.762722373008728, "answer_score": null, "sibling_qid": "KOL-2019-10-2344-Q001", "sibling_text": "reverse power", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Explain reverse power trip", "cross_family": false }, { "answer_id": "RPT-A-001", "score": 0.7265415787696838, "sibling_score": 0.7265415787696838, "answer_score": 0.4832445919513702, "sibling_qid": "KOC-2024-06-1363-Q008", "sibling_text": "what is reverse power", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Reverse power: what it is, why it happens, why we protect against it", "cross_family": false }, { "answer_id": "PF-A-002", "score": 0.6957827806472778, "sibling_score": 0.6957827806472778, "answer_score": null, "sibling_qid": "KOC-2023-04-1255-Q007", "sibling_text": "power factor how about pf in dc", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Lagging, leading, unity, resistive, inductive, capacitive — and DC", "cross_family": false } ] }, { "qid": "KOL-2022-02-2535-Q004", "text": "2- Two heater of I kw each connect in series and parallel which heater will pe heating effect more", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Active / Reactive / Apparent Power", "tid": "KOL-2022-02-2535", "tray": "new", "candidates": [ { "answer_id": "LS-IMB-A-001", "score": 0.5929349660873413, "sibling_score": 0.5929349660873413, "answer_score": null, "sibling_qid": "KOL-2025-08-2819-Q001", "sibling_text": "two generators running parallel one taking more kw one taking less reasons", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Two paralleled generators sharing unequal load — cause and correction", "cross_family": true }, { "answer_id": "GEN-LSI-B-001", "score": 0.5855298042297363, "sibling_score": 0.5855298042297363, "answer_score": null, "sibling_qid": "KOL-2017-07-2142-Q001", "sibling_text": "2 gen running in parallel with same kw load but diff current", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01. Two alternators in parallel — same kW but different current and power factor: cause and correction", "cross_family": true }, { "answer_id": "PWR-ARA-007", "score": 0.55876624584198, "sibling_score": 0.55876624584198, "answer_score": null, "sibling_qid": "KOC-2026-02-1711-Q002", "sibling_text": "kw kj", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "kW, kJ, joule and BHP — power versus energy", "cross_family": false } ] }, { "qid": "KOL-2022-02-2539-Q001", "text": "Induction motor full detail, Farady and Lenz law", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Faraday Law", "tid": "KOL-2022-02-2539", "tray": "new", "candidates": [ { "answer_id": "IM-PWC-001", "score": 0.6291022300720215, "sibling_score": 0.6291022300720215, "answer_score": 0.543422520160675, "sibling_qid": "KOL-2019-10-2345-Q004", "sibling_text": "principle of operation of induction motor 5 external sarkar internal chowdhury", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Induction motor — principle, working and basic construction", "cross_family": true }, { "answer_id": "IND-MOT-A-001", "score": 0.6244035363197327, "sibling_score": 0.6244035363197327, "answer_score": null, "sibling_qid": "KOC-2024-02-1332-Q001", "sibling_text": "induction motor explain", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "1. 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Indications that air is present in a refrigeration system", "cross_family": false }, { "answer_id": "AIR-REF-002", "score": 0.7251002192497253, "sibling_score": 0.7251002192497253, "answer_score": 0.36101348549127577, "sibling_qid": "KOL-2025-08-3849-Q003", "sibling_text": "air in the ref system from where it is coming", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "2. 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Why to change after specific running hour?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Connecting Rod & Bolts", "tid": "KOL-2022-03-1665", "tray": "review", "candidates": [ { "answer_id": "CRB-003", "score": 0.7201254963874817, "sibling_score": 0.7201254963874817, "answer_score": 0.6040884435176849, "sibling_qid": "MUM-2022-12-1037-Q024", "sibling_text": "when u need to change con rod bolts and various check also can it run lifetime if no issues on bolts", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "When do you need to change connecting rod bolts, and can they run for the life of the engine if no defect is found?", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7080389261245728, "sibling_score": 0.7080389261245728, "answer_score": 0.5936339378356933, "sibling_qid": "KOL-2018-08-1413-Q003", "sibling_text": "high speed engine con rod bolt why we need to change aftr certain period", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": true }, { "answer_id": "CRB-002", "score": 0.6633661985397339, "sibling_score": 0.6633661985397339, "answer_score": 0.5240479171276092, "sibling_qid": "KOL-2022-03-3519-Q004", "sibling_text": "what all checks to carry out on connecting rod bolts why ndt and why check elongation and what is the max limit which section of connecting rod bolt tends to shear off and why external", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What checks and tests are carried out on connecting rod bolts? 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Only tell points due to constructional reasons related to crank shaft", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft Material", "tid": "KOL-2022-03-1666", "tray": "review", "candidates": [ { "answer_id": "CRK-DEFL-001", "score": 0.7686817646026611, "sibling_score": 0.7686817646026611, "answer_score": null, "sibling_qid": "CHE-2026-05-0648-Q005", "sibling_text": "stresses on crank shaft not accepting any stress", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Purpose, timing and scope of crankshaft deflection", "cross_family": false }, { "answer_id": "CRKPIN-P02-003", "score": 0.6960908770561218, "sibling_score": 0.6960908770561218, "answer_score": null, "sibling_qid": "KOL-2021-05-3405-Q001", "sibling_text": "crank pin damaged beyond repair action", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankpin or bearing beyond repair / no spare — casualty action", "cross_family": false }, { "answer_id": "CRANK-217-004", "score": 0.6950482130050659, "sibling_score": 0.6950482130050659, "answer_score": null, "sibling_qid": "MUM-2026-02-2570-Q003", "sibling_text": "semi built crank shaft slippage", "sibling_family": "2-Stroke - 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reasons, your actions as 2/E, and telling which side of the cooler is leaking", "cross_family": false }, { "answer_id": "CPFE-583-017", "score": 0.5176621079444885, "sibling_score": 0.5176621079444885, "answer_score": null, "sibling_qid": "MUM-2023-09-2195-Q005", "sibling_text": "copt alarms and casing high temp reason", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "COPT — arrangement, seals, alarms and casing high temperature", "cross_family": true } ] }, { "qid": "KOL-2022-03-1670-Q007", "text": "Boiler safety valve setting.", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2022-03-1670", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-001", "score": 0.8651635050773621, "sibling_score": 0.8651635050773621, "answer_score": null, "sibling_qid": "CHE-2026-04-0500-Q005", "sibling_text": "boiler safety valve setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.8233604431152344, "sibling_score": 0.8233604431152344, "answer_score": null, "sibling_qid": "MUM-2026-03-2935-Q013", "sibling_text": "boiler safety valve setting in presence of surveyor after survey", "sibling_family": "Boilers - 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Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "KOL-2022-03-1671", "tray": "new", "candidates": [ { "answer_id": "PC-TP-003", "score": 0.5204499959945679, "sibling_score": 0.5204499959945679, "answer_score": 0.38820323050022126, "sibling_qid": "KOC-2023-07-0925-Q009", "sibling_text": "how piston crown cooling taking place lube circuit from telescopic pipe where it return back", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston crown cooling oil circuit and where the oil returns", "cross_family": false }, { "answer_id": "BWTEST-A-003", "score": 0.5115712881088257, "sibling_score": 0.5115712881088257, "answer_score": null, "sibling_qid": "MUM-2022-08-0942-Q004", "sibling_text": "why cooler used to cool down boiler water before sample is taken", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "How should boiler-water samples be taken and checked before testing?", "cross_family": true }, { "answer_id": "PIST-CSI-A-002", "score": 0.4887617826461792, "sibling_score": 0.4887617826461792, "answer_score": null, "sibling_qid": "CHE-2025-08-0190-Q002", "sibling_text": "type of piston type of cooling", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "2-stroke piston: parts, cooling arrangement and operating stresses", "cross_family": false } ] }, { "qid": "KOL-2022-03-1671-Q007", "text": "Type of suc discharge vv in air conpressor and why? Material of seat and spring??", "family": "Air Compressor", "subtopic": "Reciprocating Compressor", "tid": "KOL-2022-03-1671", "tray": "new", "candidates": [ { "answer_id": "ACRV-004", "score": 0.593229353427887, "sibling_score": 0.593229353427887, "answer_score": null, "sibling_qid": "KOC-2025-03-1031-Q018", "sibling_text": "compressor relief vv setting pressure and safety cutout", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Final-stage relief-valve setting/adjustment and safety cut-out pressure", "cross_family": false }, { "answer_id": "AC-STAGE-003", "score": 0.5903489589691162, "sibling_score": 0.5903489589691162, "answer_score": null, "sibling_qid": "KOL-2019-03-1446-Q002", "sibling_text": "compressor 1st discharge valve leaking effect", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Effects of 1st / 2nd stage suction or discharge valve leakage", "cross_family": false }, { "answer_id": "MAC-353-003", "score": 0.5875987410545349, "sibling_score": 0.5875987410545349, "answer_score": null, "sibling_qid": "CHE-2026-03-0486-Q004", "sibling_text": "difference between suction valve and discharge valve of air comp", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Main air compressor suction / delivery valve inspection and overhaul", "cross_family": false } ] }, { "qid": "KOL-2022-03-2546-Q005", "text": "Hazardous area circuit speciality", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOL-2022-03-2546", "tray": "new", "candidates": [ { "answer_id": "CABLE-INS-E-002", "score": 0.6435961723327637, "sibling_score": 0.6435961723327637, "answer_score": 0.490151709318161, "sibling_qid": "CHE-2026-02-0335-Q008", "sibling_text": "type of wire used in hazardous area", "sibling_family": "", "via": "sibling", "answer_title": "Cable for hazardous areas, tanker pump rooms and deck", "cross_family": false }, { "answer_id": "HAZ-EX-B-001", "score": 0.6311917901039124, "sibling_score": 0.6311917901039124, "answer_score": 0.4703729599714279, "sibling_qid": "KOL-2021-07-2453-Q005", "sibling_text": "intrinsically safe circuits", "sibling_family": "", "via": "sibling", "answer_title": "Intrinsically safe (Ex i) equipment — what it is, how it works, where it is used, how you identify it", "cross_family": false }, { "answer_id": "HV-SYS-P04-001", "score": 0.5680218935012817, "sibling_score": 0.5680218935012817, "answer_score": null, "sibling_qid": "MUM-2026-07-3688-Q010", "sibling_text": "high voltage special protections", "sibling_family": "Electrical - High Voltage", "via": "sibling", "answer_title": "HV-SYS-P04-001 - HV hazards, advantages and safeties", "cross_family": false } ] }, { "qid": "KOL-2022-03-2547-Q003", "text": "Speed sensor unit on your ship, and their construction.", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Encoders", "tid": "KOL-2022-03-2547", "tray": "new", "candidates": [ { "answer_id": "PROX-SW-004", "score": 0.5515108108520508, "sibling_score": 0.5515108108520508, "answer_score": 0.4429003834724426, "sibling_qid": "KOC-2025-02-1493-Q003", "sibling_text": "types of sensors onboard i forgot to mention the speed sensor so he asked me how is speed measured then he asked about the proximity sensor and the working principle how pressure sensor working", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Speed measurement by sensor, and the proximity sensor working principle", "cross_family": true }, { "answer_id": "DES-571-001", "score": 0.5285216569900513, "sibling_score": 0.5285216569900513, "answer_score": 0.4388869881629944, "sibling_qid": "KOC-2024-11-1439-Q008", "sibling_text": "how speed of ship was measured", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "The Doppler log — measuring the ship's speed by the Doppler effect", "cross_family": true }, { "answer_id": "EPC-P03-006", "score": 0.5269362926483154, "sibling_score": 0.5269362926483154, "answer_score": null, "sibling_qid": "KOL-2023-07-2667-Q004", "sibling_text": "working of speed measuring devices tachometer", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "How does a tachometer work — working principle and location — and what is a tacho-generator?", "cross_family": false } ] }, { "qid": "KOL-2022-03-2549-Q005", "text": "Alternator safety?", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator Protection", "tid": "KOL-2022-03-2549", "tray": "review", "candidates": [ { "answer_id": "ALT-GEN-P01-001", "score": 0.7953636646270752, "sibling_score": 0.7953636646270752, "answer_score": 0.525908601284027, "sibling_qid": "MUM-2026-09-3990-Q001", "sibling_text": "alternator safety", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Alternator/generator safeties and protection trips", "cross_family": false }, { "answer_id": "ALT-MTN-B-001", "score": 0.5347012281417847, "sibling_score": null, "answer_score": 0.5347012281417847, "sibling_qid": "", "sibling_text": "routine onboard alternator maintenance checks clean air path dry low pressure air blow through cooler and filters clear keep winding temperature in band insulation resistance to earth on a megger trended over time investigate a falling trend do not wait for the alarm", "sibling_family": "", "via": "answer_title", "answer_title": "Routine onboard alternator maintenance checks", "cross_family": false }, { "answer_id": "ALT-MAINT-A-001", "score": 0.531174612045288, "sibling_score": null, "answer_score": 0.531174612045288, "sibling_qid": "", "sibling_text": "routine maintenance care of a ship s alternator make safe first permit to work isolate rack out and lock off the breaker immobilise the prime mover the set is engine driven a blackout dead bus auto start can crank it prove dead discharge the windings the space heater supply is separate it stays live after the alternator breaker is open isolate it independently before touching the windings", "sibling_family": "", "via": "answer_title", "answer_title": "Routine maintenance & care of a ship’s alternator", "cross_family": false } ] }, { "qid": "KOL-2022-03-3519-Q002", "text": "What checks during aux. generator decarb? How to check crankpin ovality? How many readings are taken and why? Reasons for crankpin ovality?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Crankshaft / Crankpin / Bearings", "tid": "KOL-2022-03-3519", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-004", "score": 0.6937345862388611, "sibling_score": 0.6937345862388611, "answer_score": null, "sibling_qid": "KOC-2021-05-1760-Q004", "sibling_text": "connecting rod checks in auxiliary engine ans normal procedure he needs that no need to check anything on conrod bolts change it after running hours specified in manual and reason for conrod ovality is excessive lapping of serrations", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE connecting-rod inspection — ovality, trueness, serrations, action if out of limit", "cross_family": false }, { "answer_id": "CRPIN-CHK-P01-001", "score": 0.6676289439201355, "sibling_score": 0.6676289439201355, "answer_score": 0.5543533682823181, "sibling_qid": "KOL-2026-03-3936-Q001", "sibling_text": "how will you carry out ovality of crank pin and con rod in aux eng", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Crankpin ovality — how it is measured and at what positions", "cross_family": false }, { "answer_id": "AE-CSB-346-004", "score": 0.6676062345504761, "sibling_score": 0.6676062345504761, "answer_score": 0.560557472705841, "sibling_qid": "MUM-2022-08-2138-Q005", "sibling_text": "ae crankpin ovality check and repair measures", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Crankpin ovality / damage — check and repair action", "cross_family": false } ] }, { "qid": "KOL-2022-03-3519-Q005", "text": "How will you set the pressure of Auxiliary boiler Safety valve? complete the procedure.", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2022-03-3519", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-001", "score": 0.740746796131134, "sibling_score": 0.740746796131134, "answer_score": null, "sibling_qid": "KOC-2026-05-0003-Q005", "sibling_text": "boiler safety valve setting procedure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.7198044657707214, "sibling_score": 0.7198044657707214, "answer_score": null, "sibling_qid": "MUM-2026-03-2935-Q013", "sibling_text": "boiler safety valve setting in presence of surveyor after survey", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.7038299441337585, "sibling_score": 0.7038299441337585, "answer_score": null, "sibling_qid": "KOC-2026-05-0034-Q010", "sibling_text": "boiler safety valve types and how safety valve is set complete procedures", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOL-2022-03-3521-Q001", "text": "type of ship,type of engine,type of boiler, how blr wtr tube fitted with the plate, Lube oil backwash function working nd checks, Water ring in pump", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "KOL-2022-03-3521", "tray": "review", "candidates": [ { "answer_id": "BFS-257-008", "score": 0.6618943214416504, "sibling_score": 0.6618943214416504, "answer_score": null, "sibling_qid": "MUM-2026-05-3277-Q009", "sibling_text": "boiler soot blowing procedure what type of boiler you had on ship auxiliary or composite", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler / EGB soot-blowing — procedure, precautions, sequence", "cross_family": true }, { "answer_id": "TR-TB-PA-003", "score": 0.6561164259910583, "sibling_score": 0.6561164259910583, "answer_score": null, "sibling_qid": "MUM-2024-07-1085-Q001", "sibling_text": "and 6 types of ship main engine boiler generator what is the function of tie rod what is meant by pretensioned type of boiler burner working of rotary cup why butterfly valve used in jacket water cooling system ae fuel pump overhaul and checks some term he said regarding heat exchanger mean temperature boiler fire indication and action setting of safety valve dp transmitter setting 09 07", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Why tie rods are pre-tensioned (pre-stressed) and what it means", "cross_family": true }, { "answer_id": "ETP-344-P01-001", "score": 0.654577374458313, "sibling_score": 0.654577374458313, "answer_score": null, "sibling_qid": "MUM-2026-03-2606-Q001", "sibling_text": "type of engine and ship major maintenance done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false } ] }, { "qid": "KOL-2022-03-3522-Q005", "text": "After generator overhauled, how would you ensure engine taking its rated load? If not what will be the cause.", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Decarb / Balancing / High Exhaust Temperature", "tid": "KOL-2022-03-3522", "tray": "review", "candidates": [ { "answer_id": "AEDEC-291-004", "score": 0.6517683863639832, "sibling_score": 0.6517683863639832, "answer_score": null, "sibling_qid": "KOL-2019-11-3298-Q002", "sibling_text": "ae full oh carried out ae running on no load what all things u will check as 2nd eng not satisfied with answer", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "4. Checks on no-load and before taking load", "cross_family": false }, { "answer_id": "LS-IMB-A-002", "score": 0.6442376375198364, "sibling_score": 0.6442376375198364, "answer_score": null, "sibling_qid": "KOC-2021-11-0036-Q015", "sibling_text": "engine on short notice generator governor motor is not working how you take the load", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "2. Governor speed droop, isochronous control and the load-control switch", "cross_family": true }, { "answer_id": "AEOVT-559-006", "score": 0.6300444006919861, "sibling_score": 0.6300444006919861, "answer_score": 0.5295248925685883, "sibling_qid": "KOL-2020-10-3350-Q001", "sibling_text": "what checks u will make before starting if ur generator has tripped on overspeed trip", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Checks before restarting a generator after an overspeed trip", "cross_family": false } ] }, { "qid": "KOL-2022-03-3524-Q002", "text": "reasons of loss of vacuum in fresh water generator", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "KOL-2022-03-3524", "tray": "review", "candidates": [ { "answer_id": "FWG-RO-001", "score": 0.7720623016357422, "sibling_score": 0.7720623016357422, "answer_score": null, "sibling_qid": "MUM-2026-07-3709-Q006", "sibling_text": "fresh water generator not getting vacuum why any 6 reasons", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "How is vacuum created in the FWG, why does it run under vacuum, and what if the vacuum will not come?", "cross_family": false }, { "answer_id": "VAC-COND-002", "score": 0.7584581971168518, "sibling_score": 0.7584581971168518, "answer_score": 0.6040137141942977, "sibling_qid": "KOL-2026-07-4255-Q006", "sibling_text": "fresh water generator not getting vaccum why any 6 reasons", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Low vacuum, suction loss and failure to build vacuum — the reasons", "cross_family": false }, { "answer_id": "VAC-COND-001", "score": 0.6336101293563843, "sibling_score": 0.6336101293563843, "answer_score": null, "sibling_qid": "MUM-2025-09-2396-Q005", "sibling_text": "why vaccum condition", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Purpose, working and thermodynamic principle of the vacuum condenser", "cross_family": true } ] }, { "qid": "KOL-2022-03-3524-Q003", "text": "Rudder carrier bearings and rudder pintles", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2022-03-3524", "tray": "review", "candidates": [ { "answer_id": "TRS-002", "score": 0.802013099193573, "sibling_score": 0.802013099193573, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "PRE-TEN-001", "score": 0.6965510249137878, "sibling_score": 0.6965510249137878, "answer_score": null, "sibling_qid": "MUM-2026-06-3504-Q007", "sibling_text": "rudder carrier bearing removal procedure", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Pre-stressing and pre-tensioning in main-engine bolting", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.6655167937278748, "sibling_score": 0.6655167937278748, "answer_score": 0.48730358481407166, "sibling_qid": "CHE-2026-02-0110-Q006", "sibling_text": "how rudder weight is carried key ans i said carrier bearing how it carrying explain", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false } ] }, { "qid": "KOL-2022-03-3525-Q003", "text": "Thrust bearing clearance", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "", "tid": "KOL-2022-03-3525", "tray": "review", "candidates": [ { "answer_id": "THR-BRG-A-001", "score": 0.8360068202018738, "sibling_score": 0.8360068202018738, "answer_score": null, "sibling_qid": "KOC-2025-11-1969-Q004", "sibling_text": "thrust bearing clearance how to take", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you check, measure, limit and adjust main-engine thrust bearing clearance?", "cross_family": false }, { "answer_id": "RUN-CLR-001", "score": 0.5872589945793152, "sibling_score": null, "answer_score": 0.5872589945793152, "sibling_qid": "", "sibling_text": "running clearances taken from the crankcase after main engine decarbonisation bumping top clearance bottom end bearing clearance crosshead bearing clearance main bearing clearance both sides crosshead guide slipper clearance thrust clearance", "sibling_family": "", "via": "answer_title", "answer_title": "Running clearances taken from the crankcase after main-engine decarbonisation", "cross_family": false }, { "answer_id": "CXH-BRG-FINAL-1-006", "score": 0.5684314101934432, "sibling_score": null, "answer_score": 0.5684314101934432, "sibling_qid": "", "sibling_text": "crosshead guide shoe clearances how where how much piston position why clearances crosshead bearing clearance plus guide shoe clearance both sides running and thrust bearing clearance position is maker specified the aim is to put the running gear in the condition that opens the clearance at the measuring point for that design", "sibling_family": "", "via": "answer_title", "answer_title": "Crosshead & guide-shoe clearances: how, where, how much, piston position & why", "cross_family": false } ] }, { "qid": "KOL-2022-03-3526-Q004", "text": "oil in refrigeration system how to Remove 5 .how to remove interface fitted bolt in M/E shaft", "family": "Refrigeration & AC", "subtopic": "Refrigeration Lubricating Oil / Flock Point / Oil Charging", "tid": "KOL-2022-03-3526", "tray": "review", "candidates": [ { "answer_id": "INT-SHAFT-002", "score": 0.6558294296264648, "sibling_score": 0.6558294296264648, "answer_score": 0.5047047764062881, "sibling_qid": "KOL-2018-12-3965-Q010", "sibling_text": "intermediate shaft bolt removal process actually he wants to listen hollow bolts removal got fn 5", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "2. 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Checks on no-load and before taking load", "cross_family": false }, { "answer_id": "AEDEC-291-001", "score": 0.48356950283050537, "sibling_score": 0.48356950283050537, "answer_score": null, "sibling_qid": "CHE-2026-03-0486-Q009", "sibling_text": "maintenance done on ae", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "1. AE decarb / overhaul — preparation and full procedure", "cross_family": false }, { "answer_id": "AEDEC-291-003", "score": 0.44694697856903076, "sibling_score": 0.44694697856903076, "answer_score": null, "sibling_qid": "KOL-2019-06-3246-Q004", "sibling_text": "starting checks as 2e after ae decarb", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "3. 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What about a motor on deck, and large three-phase motors?", "cross_family": false }, { "answer_id": "IM-GEN-B-002", "score": 0.644775390625, "sibling_score": 0.644775390625, "answer_score": null, "sibling_qid": "KOL-2022-08-2588-Q001", "sibling_text": "types of motor in er", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motors onboard and types of induction motors", "cross_family": false } ] }, { "qid": "KOL-2022-04-2558-Q010", "text": "ICCP ?", "family": "Electrical - ICCP & Cathodic Protection", "subtopic": "ICCP", "tid": "KOL-2022-04-2558", "tray": "review", "candidates": [ { "answer_id": "ICCP-119-P01-001", "score": 0.7970052361488342, "sibling_score": 0.7970052361488342, "answer_score": 0.47638798654079434, "sibling_qid": "MUM-2024-07-1439-Q005", "sibling_text": "iccp", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP — purpose, principle and basic working", "cross_family": false }, { "answer_id": "ICCP-119-P01-002", "score": 0.45197895765304563, "sibling_score": null, "answer_score": 0.45197895765304563, "sibling_qid": "", "sibling_text": "iccp circuit control arrangement construction and main components", "sibling_family": "", "via": "answer_title", "answer_title": "ICCP circuit / control arrangement, construction and main components", "cross_family": false }, { "answer_id": "ICCP-119-P01-003", "score": 0.3960216403007507, "sibling_score": null, "answer_score": 0.3960216403007507, "sibling_qid": "", "sibling_text": "iccp values impressed current meaning anode cathode roles and materials", "sibling_family": "", "via": "answer_title", "answer_title": "ICCP values, impressed-current meaning, anode/cathode roles and materials", "cross_family": false } ] }, { "qid": "KOL-2022-04-3530-Q004", "text": "Generator exhaust temperature hight reason and action", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Decarb / Balancing / High Exhaust Temperature", "tid": "KOL-2022-04-3530", "tray": "review", "candidates": [ { "answer_id": "EXH-T-HI-002", "score": 0.7302868962287903, "sibling_score": 0.7302868962287903, "answer_score": 0.6067067563533782, "sibling_qid": "CHE-2026-04-0259-Q004", "sibling_text": "temp of one unit exhaust is high wt will be ur action", "sibling_family": "2-Stroke - 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type", "sibling_family": "", "via": "answer_title", "answer_title": "The accumulation test and the safety valve — required lift, how lift and capacity are verified, and why accumulation must stay inside the limit", "cross_family": false } ] }, { "qid": "KOL-2022-04-3534-Q005", "text": "Boiler Safety vv setting", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2022-04-3534", "tray": "review", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-003", "score": 0.759350597858429, "sibling_score": 0.759350597858429, "answer_score": null, "sibling_qid": "KOL-2026-02-2040-Q006", "sibling_text": "boiler safety v v setting boiler accumulation pr test", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "The accumulation test and the safety valve — required lift, how lift and capacity are verified, and why accumulation must stay inside the limit", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 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"MUM-2026-02-0734-Q007", "sibling_text": "mlc 2006 detainable deficiency", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false } ] }, { "qid": "KOL-2022-05-0631-Q001", "text": "& 5 1 type of ship you sailed, faraman and panama max differences", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2022-05-0631", "tray": "new", "candidates": [ { "answer_id": "LL-CONV-P06-001", "score": 0.575361430644989, "sibling_score": 0.575361430644989, "answer_score": 0.412680022418499, "sibling_qid": "MUM-2026-05-3084-Q004", "sibling_text": "difference in passenger ship and cargo ship load line", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "LLC-P06-01 - Ship categories and freeboard differences: Type A, Type B and practical ship cases", "cross_family": false }, { "answer_id": "TONN-008", "score": 0.5743404030799866, "sibling_score": 0.5743404030799866, "answer_score": null, "sibling_qid": "KOC-2026-03-0880-Q015", "sibling_text": "difference between vlcc ulcc aframax suezmax interms of dwt", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Ship / Tanker Size Classes by Deadweight", "cross_family": false }, { "answer_id": "PR-SAFE-A-001", "score": 0.5658022165298462, "sibling_score": 0.5658022165298462, "answer_score": null, "sibling_qid": "KOL-2022-10-0689-Q001", "sibling_text": "mitra sir fire detection in pumo room and cross question emergency pire pump condition of class continental self d2 standres bwm internal stake holder hopper tank required steering gear hydraulic failure cargo hold fire fighting system stcw changes eexi 1 type of ship you sailed faraman and panama max differences", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Pump-room fire detection and monitoring", "cross_family": true } ] }, { "qid": "KOL-2022-05-0631-Q004", "text": "ISM AND chapter 8 and statutory certificate and certificate related to ISM", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOL-2022-05-0631", "tray": "review", "candidates": [ { "answer_id": "ISM-SMCDOC-A-001", "score": 0.6915494203567505, "sibling_score": 0.6915494203567505, "answer_score": 0.38999263048171995, "sibling_qid": "KOC-2024-01-0272-Q008", "sibling_text": "statutory certificate related to ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM certificates: the DOC and SMC family", "cross_family": false }, { "answer_id": "ISM-SMC-B-005", "score": 0.5851271748542786, "sibling_score": 0.5851271748542786, "answer_score": null, "sibling_qid": "KOL-2025-11-1122-Q005", "sibling_text": "under ism which all certificates are issued and who issues and who does the survey", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Obtaining the DOC and SMC — who issues, who audits", "cross_family": false }, { "answer_id": "SOLAS-CH-007", "score": 0.43629719913005827, "sibling_score": null, "answer_score": 0.43629719913005827, "sibling_qid": "", "sibling_text": "solas chapter ix ism code and certificates", "sibling_family": "", "via": "answer_title", "answer_title": "SOLAS Chapter IX - ISM Code and certificates", "cross_family": false } ] }, { "qid": "KOL-2022-05-0632-Q004", "text": "2- ISM stake holder", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOL-2022-05-0632", "tray": "new", "candidates": [ { "answer_id": "ISM-2E-A-001", "score": 0.5188362002372742, "sibling_score": 0.5188362002372742, "answer_score": 0.30293266475200653, "sibling_qid": "CHE-2026-04-0156-Q005", "sibling_text": "2e role in ism code", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Roles, duties and responsibilities of a Second Engineer under ISM/SMS", "cross_family": false }, { "answer_id": "ISM-2E-A-002", "score": 0.49513858556747437, "sibling_score": 0.49513858556747437, "answer_score": null, "sibling_qid": "KOC-2024-11-0450-Q007", "sibling_text": "ism survey as 2 e", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "How a Second Engineer prepares for an ISM audit or survey", "cross_family": false }, { "answer_id": "ISM-2E-B-001", "score": 0.49499034881591797, "sibling_score": 0.49499034881591797, "answer_score": null, "sibling_qid": "KOC-2026-08-2106-Q007", "sibling_text": "ism survey as 2 e", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "B1. Preparing for an ISM audit as Second Engineer", "cross_family": false } ] }, { "qid": "KOL-2022-05-0633-Q001", "text": "How rudder is connected to hull?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2022-05-0633", "tray": "review", "candidates": [ { "answer_id": "TRS-002", "score": 0.7092685699462891, "sibling_score": 0.7092685699462891, "answer_score": 0.5313678443431854, "sibling_qid": "KOC-2026-05-0004-Q005", "sibling_text": "how rudder is connected to rudder carrier bearing", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.641819953918457, "sibling_score": 0.641819953918457, "answer_score": null, "sibling_qid": "MUM-2026-06-3584-Q005", "sibling_text": "what takes weight of rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "TLM-218-001", "score": 0.6387971043586731, "sibling_score": 0.6387971043586731, "answer_score": 0.5134603679180145, "sibling_qid": "KOL-2019-02-1440-Q002", "sibling_text": "rudder control from bridge to steering gear room", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Helm order from bridge to rudder — the full sequence", "cross_family": false } ] }, { "qid": "KOL-2022-05-0635-Q001", "text": "deck line", "family": "Load Line Convention", "subtopic": "Deck Line", "tid": "KOL-2022-05-0635", "tray": "review", "candidates": [ { "answer_id": "LLC-P05-001", "score": 0.7236982583999634, "sibling_score": 0.7236982583999634, "answer_score": 0.40095863938331605, "sibling_qid": "KOL-2022-05-0638-Q006", "sibling_text": "deck line", "sibling_family": "", "via": "sibling", "answer_title": "Freeboard, deck line, Plimsoll mark, assignment and scantling draft", "cross_family": false }, { "answer_id": "MARGIN-LINE-003", "score": 0.6464160084724426, "sibling_score": 0.6464160084724426, "answer_score": 0.3991706073284149, "sibling_qid": "KOL-2020-07-0416-Q005", "sibling_text": "margin line deck line where drawn", "sibling_family": "", "via": "sibling", "answer_title": "Margin line vs deck line, freeboard and the Plimsoll marks", "cross_family": false }, { "answer_id": "DCP-FIXED-A-001", "score": 0.5854889154434204, "sibling_score": 0.5854889154434204, "answer_score": null, "sibling_qid": "MUM-2025-06-0313-Q003", "sibling_text": "fixed dcp system for deck", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Draw and explain the fixed DCP/dry-powder deck fire-fighting system", "cross_family": true } ] }, { "qid": "KOL-2022-05-0635-Q003", "text": "Non conformity", "family": "ISM Code", "subtopic": "Major / Minor NC", "tid": "KOL-2022-05-0635", "tray": "review", "candidates": [ { "answer_id": "ISMNC-001", "score": 0.8335539102554321, "sibling_score": 0.8335539102554321, "answer_score": 0.48975977301597595, "sibling_qid": "MUM-2026-05-3084-Q008", "sibling_text": "non conformity", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a non-conformity under the ISM Code? Give the definition.", "cross_family": false }, { "answer_id": "ISMNC-002", "score": 0.7794312834739685, "sibling_score": 0.7794312834739685, "answer_score": null, "sibling_qid": "MUM-2025-08-0397-Q003", "sibling_text": "maj non conformity", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a major non-conformity under the ISM Code? Give the definition and name some.", "cross_family": false }, { "answer_id": "ISMNC-003", "score": 0.7551965713500977, "sibling_score": 0.7551965713500977, "answer_score": 0.4331925123929977, "sibling_qid": "MUM-2025-01-0238-Q006", "sibling_text": "major non conformity and non conformity", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Differentiate between a major non-conformity and a non-conformity under the ISM Code.", "cross_family": false } ] }, { "qid": "KOL-2022-05-0637-Q001", "text": "Fixed gas detection system", "family": "MARPOL - Annex I (Oil)", "subtopic": "Standard Discharge Connection", "tid": "KOL-2022-05-0637", "tray": "review", "candidates": [ { "answer_id": "GAS-DET-001", "score": 0.8080282211303711, "sibling_score": 0.8080282211303711, "answer_score": 0.5766304582357407, "sibling_qid": "KOC-2024-06-0352-Q013", "sibling_text": "fixed gas detection system", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Fixed gas detection system on a gas carrier (cargo area / \"pump room\")", "cross_family": true }, { "answer_id": "PR-SAFE-A-002", "score": 0.807776689529419, "sibling_score": 0.807776689529419, "answer_score": 0.5295294523239136, "sibling_qid": "KOC-2022-08-0082-Q007", "sibling_text": "fixed gas detection system", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Pump-room fixed gas detection and atmosphere monitoring", "cross_family": true }, { "answer_id": "CO2-SYS-005", "score": 0.6403945684432983, "sibling_score": 0.6403945684432983, "answer_score": null, "sibling_qid": "KOL-2019-10-0326-Q001", "sibling_text": "co2 fixed installation alarm", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 system safeties, CO2-room requirements, alarms and ventilation", "cross_family": true } ] }, { "qid": "KOL-2022-05-0639-Q001", "text": "1st attempt? type of vessel sailed?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2022-05-0639", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.6998147964477539, "sibling_score": 0.6998147964477539, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.6992987394332886, "sibling_score": 0.6992987394332886, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "LL-CONV-P06-001", "score": 0.4047189176082611, "sibling_score": null, "answer_score": 0.4047189176082611, "sibling_qid": "", "sibling_text": "llc p06 01 ship categories and freeboard differences type a type b and practical ship cases", "sibling_family": "", "via": "answer_title", "answer_title": "LLC-P06-01 - Ship categories and freeboard differences: Type A, Type B and practical ship cases", "cross_family": false } ] }, { "qid": "KOL-2022-05-0639-Q004", "text": "external stake holders of ISM", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOL-2022-05-0639", "tray": "new", "candidates": [ { "answer_id": "ISM-DPA-002", "score": 0.49231213331222534, "sibling_score": 0.49231213331222534, "answer_score": null, "sibling_qid": "KOC-2023-03-0172-Q004", "sibling_text": "ism who is responsible for ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "DPA basis : which convention, which code, and who is responsible for ISM", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.47420358657836914, "sibling_score": 0.47420358657836914, "answer_score": null, "sibling_qid": "MUM-2025-09-0457-Q008", "sibling_text": "objectives of ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "ISM-AUD-P02-002", "score": 0.4676751494407654, "sibling_score": 0.4676751494407654, "answer_score": null, "sibling_qid": "KOC-2026-01-2087-Q013", "sibling_text": "what is the purpose of ism internal", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM Code — what it is, purpose, objectives and structure", "cross_family": false } ] }, { "qid": "KOL-2022-05-0644-Q001", "text": "Ship sailed. Cow, explain.", "family": "MARPOL - Annex I (Oil)", "subtopic": "COW / Crude Oil Wash", "tid": "KOL-2022-05-0644", "tray": "new", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.6394259929656982, "sibling_score": 0.6394259929656982, "answer_score": null, "sibling_qid": "MUM-2026-04-1319-Q001", "sibling_text": "ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": true }, { "answer_id": "ISM-2E-B-002", "score": 0.49803271889686584, "sibling_score": 0.49803271889686584, "answer_score": null, "sibling_qid": "MUM-2025-06-0336-Q001", "sibling_text": "as 2 engg joinig a ship how u know ism followed", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "B2. Joining or taking over a ship and confirming ISM/SMS is followed", "cross_family": true }, { "answer_id": "CHEM-PA-011", "score": 0.4905756711959839, "sibling_score": 0.4905756711959839, "answer_score": null, "sibling_qid": "KOL-2022-02-0603-Q001", "sibling_text": "which vessel sailed what is meaning of enroute", "sibling_family": "MARPOL - Annex II (NLS)", "via": "sibling", "answer_title": "What ‘en route’ means for Annex II discharge", "cross_family": true } ] }, { "qid": "KOL-2022-05-0645-Q001", "text": "Rudder fitting attachment details", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2022-05-0645", "tray": "review", "candidates": [ { "answer_id": "TRS-002", "score": 0.6784619688987732, "sibling_score": 0.6784619688987732, "answer_score": 0.4841272085905075, "sibling_qid": "KOC-2026-02-1103-Q008", "sibling_text": "how rudder stock and carrier bearing is attached told 2 half fitted bolts x does bearing turn with rudder i told yes then he told that there are 2 types one turn with rudder other dont turn with rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.6054906249046326, "sibling_score": 0.6054906249046326, "answer_score": null, "sibling_qid": "MUM-2026-06-3584-Q005", "sibling_text": "what takes weight of rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "HULL-PAINT-002", "score": 0.5884188413619995, "sibling_score": 0.5884188413619995, "answer_score": null, "sibling_qid": "CHE-2026-02-0110-Q012", "sibling_text": "rudder internal painting", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Types of hull coating, the paint scheme by section, and why each is used", "cross_family": false } ] }, { "qid": "KOL-2022-05-1678-Q003", "text": "Type of ship and engine", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "KOL-2022-05-1678", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8333953022956848, "sibling_score": 0.8333953022956848, "answer_score": null, "sibling_qid": "MUM-2025-08-2357-Q001", "sibling_text": "type of ship type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.827093780040741, "sibling_score": 0.827093780040741, "answer_score": null, "sibling_qid": "MUM-2026-07-3668-Q004", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7617520093917847, "sibling_score": 0.7617520093917847, "answer_score": null, "sibling_qid": "KOL-2025-12-2031-Q002", "sibling_text": "type of ship and engine sailed engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "KOL-2022-05-1678-Q006", "text": "3:- why turning moment is more in ahead but less in astern", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2022-05-1678", "tray": "review", "candidates": [ { "answer_id": "SPR-STERN-001", "score": 0.7055171728134155, "sibling_score": 0.7055171728134155, "answer_score": null, "sibling_qid": "KOL-2026-02-2041-Q002", "sibling_text": "why ahead turning moment more than astern", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Propeller design factors, efficiency, handedness & material", "cross_family": true }, { "answer_id": "STEER-055-A-004", "score": 0.47290563583374023, "sibling_score": 0.47290563583374023, "answer_score": null, "sibling_qid": "KOC-2021-07-1764-Q007", "sibling_text": "steering gear takes more time to respond after giving signal from bridge reasons thank you each and everyone for posting questions and helping wish you all the very best", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Hydraulic faults — air, sluggish response, locking, leakage", "cross_family": false }, { "answer_id": "REV-PROC-008", "score": 0.44095954298973083, "sibling_score": 0.44095954298973083, "answer_score": null, "sibling_qid": "KOL-2021-07-3992-Q005", "sibling_text": "m e not turning in astern direction what is the main reason how to overcome it any other reasons", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Engine, unit, fuel pump or cam fails to reverse — causes and action", "cross_family": true } ] }, { "qid": "KOL-2022-05-1679-Q002", "text": "main engine specification", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOL-2022-05-1679", "tray": "review", "candidates": [ { "answer_id": "ENG-NOM-006", "score": 0.7967210412025452, "sibling_score": 0.7967210412025452, "answer_score": null, "sibling_qid": "CHE-2026-05-0585-Q001", "sibling_text": "main engine specification complete", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Short-form asks: SMC-C, LMC, and ME vs MC quickly", "cross_family": false }, { "answer_id": "ALT-MTN-B-001", "score": 0.6860007047653198, "sibling_score": 0.6860007047653198, "answer_score": null, "sibling_qid": "MUM-2026-02-1281-Q001", "sibling_text": "main engine specification mc c", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Routine onboard alternator maintenance checks", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.670256495475769, "sibling_score": 0.670256495475769, "answer_score": null, "sibling_qid": "CHE-2026-08-3865-Q007", "sibling_text": "main engine specifications", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "KOL-2022-05-1679-Q005", "text": "Ignition delay", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Quality / CCAI", "tid": "KOL-2022-05-1679", "tray": "review", "candidates": [ { "answer_id": "FQCC-583-B-006", "score": 0.7986705303192139, "sibling_score": 0.7986705303192139, "answer_score": 0.6299557328224182, "sibling_qid": "CHE-2025-08-0192-Q005", "sibling_text": "ignition delay", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Ignition delay — the gap between injection and combustion, and its reasons", "cross_family": true }, { "answer_id": "INDCARD-C-001", "score": 0.7360814809799194, "sibling_score": 0.7360814809799194, "answer_score": 0.6042379021644592, "sibling_qid": "CHE-2026-05-0572-Q006", "sibling_text": "how you will find ignition delay", "sibling_family": "2-Stroke - 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Centrifugal & PD", "via": "sibling", "answer_title": "Explain the working of the water-ring / liquid-ring primer and its diagram. What type of vacuum pump is used?", "cross_family": true }, { "answer_id": "VAC-COND-002", "score": 0.5121630430221558, "sibling_score": 0.5121630430221558, "answer_score": 0.3649199545383453, "sibling_qid": "KOL-2026-07-4255-Q006", "sibling_text": "fresh water generator not getting vaccum why any 6 reasons", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Low vacuum, suction loss and failure to build vacuum — the reasons", "cross_family": false } ] }, { "qid": "KOL-2022-05-1681-Q002", "text": "Specification of engine you have done", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOL-2022-05-1681", "tray": "review", "candidates": [ { "answer_id": "ENG-NOM-006", "score": 0.7563566565513611, "sibling_score": 0.7563566565513611, "answer_score": null, "sibling_qid": "CHE-2026-05-0585-Q001", "sibling_text": "main engine specification complete", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Short-form asks: SMC-C, LMC, and ME vs MC quickly", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.6958581805229187, "sibling_score": 0.6958581805229187, "answer_score": null, "sibling_qid": "CHE-2026-04-0506-Q003", "sibling_text": "types of engine you worked specifications of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false }, { "answer_id": "ETP-344-P03-001", "score": 0.6920261979103088, "sibling_score": 0.6920261979103088, "answer_score": null, "sibling_qid": "KOL-2026-03-2048-Q001", "sibling_text": "type of engine done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false } ] }, { "qid": "KOL-2022-05-1681-Q004", "text": "Improve safety valve design and working", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2022-05-1681", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.756571352481842, "sibling_score": 0.756571352481842, "answer_score": null, "sibling_qid": "KOC-2026-03-2019-Q004", "sibling_text": "improved safety valve top part", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "MR-DS-PV-B-006", "score": 0.6879474520683289, "sibling_score": 0.6879474520683289, "answer_score": null, "sibling_qid": "KOC-2026-09-2180-Q009", "sibling_text": "full bore safety valve construction", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "6. 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Method of locking", "family": "Steering Gear & Hydraulics", "subtopic": "Tiller / Rudder Stock", "tid": "KOL-2022-05-1681", "tray": "review", "candidates": [ { "answer_id": "STEER-055-A-004", "score": 0.7050528526306152, "sibling_score": 0.7050528526306152, "answer_score": null, "sibling_qid": "MUM-2026-07-3762-Q009", "sibling_text": "rudder locking", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Hydraulic faults — air, sluggish response, locking, leakage", "cross_family": false }, { "answer_id": "TRS-002", "score": 0.6443485617637634, "sibling_score": 0.6443485617637634, "answer_score": 0.44832507371902464, "sibling_qid": "MUM-2024-12-1098-Q005", "sibling_text": "how coupling for rudder is done", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.6239730715751648, "sibling_score": 0.6239730715751648, "answer_score": null, "sibling_qid": "KOC-2026-04-0891-Q002", "sibling_text": "rudder after dock", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false } ] }, { "qid": "KOL-2022-05-1681-Q008", "text": "Holding down bolts loosing in particular area Some more which I don't remember now", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Holding Down Bolts", "tid": "KOL-2022-05-1681", "tray": "review", "candidates": [ { "answer_id": "FB-COUP-001", "score": 0.7274323105812073, "sibling_score": 0.7274323105812073, "answer_score": 0.4883744180202484, "sibling_qid": "KOC-2026-09-2175-Q005", "sibling_text": "fitted bolts where", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What fitted bolts are, what they do, and where they sit onboard", "cross_family": false }, { "answer_id": "TBR-TT-P02-001", "score": 0.7185409665107727, "sibling_score": 0.7185409665107727, "answer_score": null, "sibling_qid": "CHE-2026-05-0641-Q012", "sibling_text": "holding down bolts checks and tightening", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Tie rod tightening / hydraulic tensioning procedure", "cross_family": false }, { "answer_id": "TBR-TT-P02-002", "score": 0.7122346758842468, "sibling_score": 0.7122346758842468, "answer_score": null, "sibling_qid": "MUM-2026-02-2549-Q006", "sibling_text": "holding down bolts tightness check", "sibling_family": "2-Stroke - 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Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankpin bearing clearance — measurement and interpretation", "cross_family": true } ] }, { "qid": "KOL-2022-05-1685-Q009", "text": "Safety valve lip clearence Rest forget", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2022-05-1685", "tray": "new", "candidates": [ { "answer_id": "BLR-SURV-P01-001", "score": 0.6136181950569153, "sibling_score": 0.6136181950569153, "answer_score": null, "sibling_qid": "MUM-2026-03-2589-Q003", "sibling_text": "checks on safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "ACRV-005", "score": 0.6115049719810486, "sibling_score": 0.6115049719810486, "answer_score": null, "sibling_qid": "MUM-2026-06-3429-Q010", "sibling_text": "safety valve lift difference", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.6029032468795776, "sibling_score": 0.6029032468795776, "answer_score": null, "sibling_qid": "MUM-2026-06-3356-Q009", "sibling_text": "type of safety valve how much was the lift of it", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOL-2022-05-1686-Q001", "text": "&6 Type of engine and steering gear", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOL-2022-05-1686", "tray": "new", "candidates": [ { "answer_id": "TG-MOTOR-001", "score": 0.628777265548706, "sibling_score": 0.628777265548706, "answer_score": null, "sibling_qid": "MUM-2026-06-3634-Q003", "sibling_text": "type of steering gear and turning gear motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What type of motor is used for the turning gear, and what type of rotor does it have?", "cross_family": true }, { "answer_id": "STEER-055-A-002", "score": 0.6104283332824707, "sibling_score": 0.6104283332824707, "answer_score": 0.44367665648460386, "sibling_qid": "MUM-2026-05-3285-Q005S2", "sibling_text": "steering gear motor type", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Steering gear motor and power unit", "cross_family": true }, { "answer_id": "SGM-ELEC-002", "score": 0.6104283332824707, "sibling_score": 0.6104283332824707, "answer_score": null, "sibling_qid": "MUM-2026-01-1906-Q006S2", "sibling_text": "steering gear motor type", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What type of motor is the steering gear motor, how does it differ from other engine-room motors, and how do you order one?", "cross_family": true } ] }, { "qid": "KOL-2022-05-1686-Q005", "text": "Rudder locking", "family": "Steering Gear & Hydraulics", "subtopic": "Tiller / Rudder Stock", "tid": "KOL-2022-05-1686", "tray": "new", "candidates": [ { "answer_id": "STEER-055-A-004", "score": 0.6496725082397461, "sibling_score": 0.6496725082397461, "answer_score": null, "sibling_qid": "MUM-2026-07-3762-Q009", "sibling_text": "rudder locking", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Hydraulic faults — air, sluggish response, locking, leakage", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.543347954750061, "sibling_score": 0.543347954750061, "answer_score": null, "sibling_qid": "MUM-2026-06-3564-Q005", "sibling_text": "checks in dd on rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "TRS-002", "score": 0.5184973478317261, "sibling_score": 0.5184973478317261, "answer_score": null, "sibling_qid": "MUM-2024-12-1098-Q005", "sibling_text": "how coupling for rudder is done", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false } ] }, { "qid": "KOL-2022-05-1686-Q006", "text": "Swelling and shrinkage", "family": "Boilers - Operations & Firing", "subtopic": "Boiler Water Circulation", "tid": "KOL-2022-05-1686", "tray": "new", "candidates": [ { "answer_id": "DP-TX-006", "score": 0.6128884553909302, "sibling_score": 0.6128884553909302, "answer_score": 0.4059397667646408, "sibling_qid": "KOL-2025-08-2012-Q004", "sibling_text": "swell and shrink in boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler swell and shrink in relation to DP level measurement and control", "cross_family": false }, { "answer_id": "LWL-004", "score": 0.5567864775657654, "sibling_score": 0.5567864775657654, "answer_score": 0.42169653326272966, "sibling_qid": "KOL-2021-08-3446-Q003", "sibling_text": "what is swell and shrinkage how swell and shrinkage is nullified in boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "What are swell and shrinkage, and how are they nullified in the boiler?", "cross_family": false }, { "answer_id": "LWL-001", "score": 0.5429918766021729, "sibling_score": 0.5429918766021729, "answer_score": null, "sibling_qid": "KOL-2021-12-3498-Q002", "sibling_text": "shrinkage and swelling how to control what are 3 elements in the 3 elements 2 control system feed flow transmitter working", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Explain three-element boiler water level control — the three elements, how it removes swell and shrinkage, and how the PID works", "cross_family": false } ] }, { "qid": "KOL-2022-05-1686-Q011", "text": "Holding down bolts loose reasons, checks & maintenance.", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Holding Down Bolts", "tid": "KOL-2022-05-1686", "tray": "review", "candidates": [ { "answer_id": "TBR-TT-P02-002", "score": 0.744410514831543, "sibling_score": 0.744410514831543, "answer_score": null, "sibling_qid": "MUM-2026-02-2549-Q006", "sibling_text": "holding down bolts tightness check", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Checking tie rod tightness / slackness — stopped and running", "cross_family": false }, { "answer_id": "TBR-TT-P02-001", "score": 0.742541491985321, "sibling_score": 0.742541491985321, "answer_score": null, "sibling_qid": "CHE-2026-05-0641-Q012", "sibling_text": "holding down bolts checks and tightening", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Tie rod tightening / hydraulic tensioning procedure", "cross_family": false }, { "answer_id": "FB-COUP-001", "score": 0.6637474894523621, "sibling_score": 0.6637474894523621, "answer_score": null, "sibling_qid": "KOL-2021-02-1577-Q004", "sibling_text": "loose bolts construction and where it is fitted", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What fitted bolts are, what they do, and where they sit onboard", "cross_family": false } ] }, { "qid": "KOL-2022-05-2560-Q001", "text": "ICCP operation ? How much current valve? How can decide current value?", "family": "Electrical - ICCP & Cathodic Protection", "subtopic": "ICCP", "tid": "KOL-2022-05-2560", "tray": "review", "candidates": [ { "answer_id": "ICCP-119-P01-003", "score": 0.686156690120697, "sibling_score": 0.686156690120697, "answer_score": 0.4227731168270111, "sibling_qid": "KOL-2026-01-2948-Q005", "sibling_text": "iccp working how much current", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP values, impressed-current meaning, anode/cathode roles and materials", "cross_family": false }, { "answer_id": "ICCP-P02-001", "score": 0.6464588046073914, "sibling_score": 0.6464588046073914, "answer_score": null, "sibling_qid": "KOC-2026-05-0051-Q002", "sibling_text": "iccp drawing ref voltage 800mv also current applied", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP reference cell / reference electrode — purpose, material, location, selection", "cross_family": false }, { "answer_id": "ICCP-119-P01-002", "score": 0.642954409122467, "sibling_score": 0.642954409122467, "answer_score": null, "sibling_qid": "MUM-2026-02-1919-Q002", "sibling_text": "iccp circuit explain and values of current and voltage", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP circuit / control arrangement, construction and main components", "cross_family": false } ] }, { "qid": "KOL-2022-05-2560-Q002", "text": "How can check diode?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Zener / Diode / Rectifier", "tid": "KOL-2022-05-2560", "tray": "review", "candidates": [ { "answer_id": "EPC-P01-02", "score": 0.7017225623130798, "sibling_score": 0.7017225623130798, "answer_score": null, "sibling_qid": "CHE-2026-05-0627-Q008", "sibling_text": "diode testing", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Types of diodes, and where diodes are used on board", "cross_family": false }, { "answer_id": "GMCM-583-A-006", "score": 0.6435303688049316, "sibling_score": 0.6435303688049316, "answer_score": 0.47236886620521545, "sibling_qid": "KOC-2025-11-1652-Q001", "sibling_text": "how to test diodes and transistors using a multimeter", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "06. Testing diodes and transistors with a multimeter", "cross_family": false }, { "answer_id": "EPC-P02-01", "score": 0.6247365474700928, "sibling_score": 0.6247365474700928, "answer_score": null, "sibling_qid": "KOL-2022-08-2593-Q004", "sibling_text": "what is zener diode how diode test onboard", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a zener diode? Draw its symbol, explain its working principle, and draw and explain its characteristic curve including the zener (breakdown) voltage.", "cross_family": false } ] }, { "qid": "KOL-2022-05-2565-Q004", "text": "Electric wiring diagram which is asked by dry dock personal, what is it called. Few more...", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Electrical Components / Electronics", "tid": "KOL-2022-05-2565", "tray": "review", "candidates": [ { "answer_id": "ELEC-ELX-006", "score": 0.7589722275733948, "sibling_score": 0.7589722275733948, "answer_score": 0.618061763048172, "sibling_qid": "KOL-2016-08-2064-Q001", "sibling_text": "type of electrical diagram difference between wiring diagram and electrical diagram", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Electrical drawings and wiring diagrams", "cross_family": false }, { "answer_id": "GMC-583-B-007", "score": 0.7133814692497253, "sibling_score": 0.7133814692497253, "answer_score": null, "sibling_qid": "KOL-2021-01-2412-Q002", "sibling_text": "electrical dig used onboard name and details", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Electrical measuring instruments carried onboard — and potentiometer versus voltmeter", "cross_family": false }, { "answer_id": "EPC-P03-004", "score": 0.6973889470100403, "sibling_score": 0.6973889470100403, "answer_score": null, "sibling_qid": "KOC-2024-09-1399-Q004", "sibling_text": "ladder diagram", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is ladder logic? Explain a ladder diagram and ladder programming with a simple example.", "cross_family": false } ] }, { "qid": "KOL-2022-05-2566-Q002", "text": "Protection inside Alternator", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator Protection", "tid": "KOL-2022-05-2566", "tray": "review", "candidates": [ { "answer_id": "ALT-GEN-P01-001", "score": 0.8504568934440613, "sibling_score": 0.8504568934440613, "answer_score": 0.5731642335653305, "sibling_qid": "MUM-2026-07-3800-Q005", "sibling_text": "protection inside alternator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Alternator/generator safeties and protection trips", "cross_family": false }, { "answer_id": "RPT-C-001", "score": 0.7274187207221985, "sibling_score": 0.7274187207221985, "answer_score": null, "sibling_qid": "KOL-2023-09-2677-Q008", "sibling_text": "6 protection device to prevent motorising of paralleled dc alternator and ac alternator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Reverse power in the paralleling picture — where it sits among the alternator safeties", "cross_family": false }, { "answer_id": "OCR-185-003", "score": 0.697564959526062, "sibling_score": 0.697564959526062, "answer_score": null, "sibling_qid": "KOC-2022-05-1183-Q001", "sibling_text": "protection of alternator from over current", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "What an overcurrent relay is, where it is fitted, what it protects", "cross_family": true } ] }, { "qid": "KOL-2022-05-2568-Q001", "text": "Type of alternator on your last ship. Its components. How's excitation achieved in case of brushless alternator. Location of AVR.", "family": "Electrical - Generator & Alternator", "subtopic": "Brushless Alternator", "tid": "KOL-2022-05-2568", "tray": "review", "candidates": [ { "answer_id": "BRUSHALT-A-001", "score": 0.7678757309913635, "sibling_score": 0.7678757309913635, "answer_score": 0.5858338683843612, "sibling_qid": "KOL-2021-10-2502-Q002", "sibling_text": "brushless alternator where rotor exciter fitted how current going exciter to main rotor", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01 · Working principle of the brushless alternator / brushless excitation systemHigh", "cross_family": false }, { "answer_id": "ALT-GEN-P03-003", "score": 0.5870930194854737, "sibling_score": null, "answer_score": 0.5870930194854737, "sibling_qid": "", "sibling_text": "brushless alternator advantages and brushed vs brushless comparison brushed dc excitation reaches rotor through brushes and slip rings brushless avr feeds exciter field exciter output is rectified by rotating diodes to feed main rotor", "sibling_family": "", "via": "answer_title", "answer_title": "Brushless alternator advantages and brushed vs brushless comparison", "cross_family": false }, { "answer_id": "AVR-EXC-G-002", "score": 0.5775324791669846, "sibling_score": null, "answer_score": 0.5775324791669846, "sibling_qid": "", "sibling_text": "brushless excitation how dc reaches the rotor avr senses terminal voltage and sets the dc to the stationary exciter field the exciter is inverted field stationary armature rotating on the shaft", "sibling_family": "", "via": "answer_title", "answer_title": "Brushless excitation: how DC reaches the rotor", "cross_family": false } ] }, { "qid": "KOL-2022-05-2570-Q001", "text": "Int- chakki sir Ext- Bhaumik sir Which was your last ship?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2022-05-2570", "tray": "new", "candidates": [ { "answer_id": "SHELL-PLT-A-002", "score": 0.5707297921180725, "sibling_score": 0.5707297921180725, "answer_score": null, "sibling_qid": "KOL-2019-12-0366-Q008", "sibling_text": "strakes of ship chakraborty and chaki sir", "sibling_family": "", "via": "sibling", "answer_title": "Shell plating, strakes, and the named strakes", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.5490255355834961, "sibling_score": 0.5490255355834961, "answer_score": null, "sibling_qid": "CHE-2026-02-0478-Q004", "sibling_text": "this type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "CLASS-NOT-001", "score": 0.5440493226051331, "sibling_score": 0.5440493226051331, "answer_score": null, "sibling_qid": "MUM-2026-06-3643-Q002", "sibling_text": "notation of your last vessel", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "What is class notation, and how would you explain the notation written for your ship?", "cross_family": false } ] }, { "qid": "KOL-2022-05-3536-Q001", "text": "Type of engine sailed on.", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOL-2022-05-3536", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8522021174430847, "sibling_score": 0.8522021174430847, "answer_score": null, "sibling_qid": "MUM-2026-04-1007-Q002", "sibling_text": "type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.7919735312461853, "sibling_score": 0.7919735312461853, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q001", "sibling_text": "type of ship sailed and engines details", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7507294416427612, "sibling_score": 0.7507294416427612, "answer_score": null, "sibling_qid": "KOL-2025-12-2031-Q002", "sibling_text": "type of ship and engine sailed engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "KOL-2022-05-3536-Q002", "text": "Major overhaul you did on main engine, said decarb and liner renewal.", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOL-2022-05-3536", "tray": "review", "candidates": [ { "answer_id": "PIST-CSI-C-003", "score": 0.677115261554718, "sibling_score": 0.677115261554718, "answer_score": null, "sibling_qid": "KOL-2018-08-3166-Q006", "sibling_text": "any major overhaul done i said piston decarb", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston removal, lifting precautions and overhaul / decarbonising", "cross_family": true }, { "answer_id": "CYL-LINER-P03-006", "score": 0.6102620363235474, "sibling_score": 0.6102620363235474, "answer_score": 0.46370538175106046, "sibling_qid": "KOL-2017-04-1289-Q008", "sibling_text": "removing old liner procedure of main engine and checks br fitting new liner", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Fitting a new cylinder liner — checks and precautions during renewal and installation", "cross_family": true }, { "answer_id": "AEDEC-291-001", "score": 0.5963744521141052, "sibling_score": 0.5963744521141052, "answer_score": 0.48615442514419555, "sibling_qid": "KOC-2026-03-2009-Q003", "sibling_text": "work done onboard generator decarb", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "1. AE decarb / overhaul — preparation and full procedure", "cross_family": true } ] }, { "qid": "KOL-2022-05-3538-Q004", "text": "Improved High Lift safety valve dismantled, checks carried out in the safety valve.", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2022-05-3538", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.766522228717804, "sibling_score": 0.766522228717804, "answer_score": null, "sibling_qid": "KOC-2026-02-1106-Q007", "sibling_text": "improved high lift safety valve overhaul and checks", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.6998037695884705, "sibling_score": 0.6998037695884705, "answer_score": null, "sibling_qid": "MUM-2026-03-2589-Q003", "sibling_text": "checks on safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "SAV-006", "score": 0.518356329202652, "sibling_score": null, "answer_score": 0.518356329202652, "sibling_qid": "", "sibling_text": "safety aspects checked on the starting air valve", "sibling_family": "", "via": "answer_title", "answer_title": "Safety aspects checked on the starting air valve", "cross_family": false } ] }, { "qid": "KOL-2022-05-3539-Q003", "text": "2 more questions couldn't remember.", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOL-2022-05-3539", "tray": "new", "candidates": [ { "answer_id": "WMAT-170-010", "score": 0.5866262316703796, "sibling_score": 0.5866262316703796, "answer_score": null, "sibling_qid": "CHE-2026-05-0597-Q012", "sibling_text": "few more questions", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Bearing types, material selection and properties: where each is used", "cross_family": true }, { "answer_id": "BWMS-C-002", "score": 0.557636559009552, "sibling_score": 0.557636559009552, "answer_score": null, "sibling_qid": "KOL-2022-05-0641-Q005", "sibling_text": "bwts one more question but forgot", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Types of BWTS and their working principles", "cross_family": true }, { "answer_id": "CLVR-WEAR-001", "score": 0.5461596846580505, "sibling_score": 0.5461596846580505, "answer_score": null, "sibling_qid": "KOC-2026-03-1110-Q016", "sibling_text": "clover leafing some more questions i don t remember", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Cloverleaf wear — what it is, where, why, and how to reduce or rectify it", "cross_family": true } ] }, { "qid": "KOL-2022-05-3540-Q003", "text": "in drydock u have dismantled a improved high lift safety valve, what all checks you will do. What is the difference between improved high lift and high lift safety valve.", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2022-05-3540", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.7813622355461121, "sibling_score": 0.7813622355461121, "answer_score": null, "sibling_qid": "KOC-2026-02-1106-Q007", "sibling_text": "improved high lift safety valve overhaul and checks", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACRV-005", "score": 0.7093062996864319, "sibling_score": 0.7093062996864319, "answer_score": null, "sibling_qid": "MUM-2026-06-3429-Q010", "sibling_text": "safety valve lift difference", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.7018608450889587, "sibling_score": 0.7018608450889587, "answer_score": null, "sibling_qid": "KOL-2026-01-3900-Q005", "sibling_text": "check on safety valve during overhaul", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false } ] }, { "qid": "KOL-2022-05-4009-Q007", "text": "How to operate the engine when crank pin bearing is damage and there is no spare present on board.", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Bottom End Bearing", "tid": "KOL-2022-05-4009", "tray": "review", "candidates": [ { "answer_id": "BEB-C-002", "score": 0.7387901544570923, "sibling_score": 0.7387901544570923, "answer_score": 0.6186086297035217, "sibling_qid": "KOL-2023-11-3658-Q005", "sibling_text": "big end bearing of me damaged no spares how to run the engine", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bottom end bearing damaged, no spare — action to reach port without damaging the pin", "cross_family": false }, { "answer_id": "CRKPIN-P02-003", "score": 0.7301210165023804, "sibling_score": 0.7301210165023804, "answer_score": 0.6364351958036423, "sibling_qid": "KOL-2022-02-3518-Q003", "sibling_text": "crank pin bearing damage and no spare how to proceed", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankpin or bearing beyond repair / no spare — casualty action", "cross_family": true }, { "answer_id": "CRPIN-CHK-P01-004", "score": 0.6898980140686035, "sibling_score": 0.6898980140686035, "answer_score": 0.5234934508800506, "sibling_qid": "KOL-2022-08-3559-Q003", "sibling_text": "crankpin bearing beyond repair actions", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Repairing an oval or worn crankpin — grinding, undersize bearings, renewal", "cross_family": true } ] }, { "qid": "KOL-2022-06-0646-Q003", "text": "Type of ship and construction", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2022-06-0646", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.7523959279060364, "sibling_score": 0.7523959279060364, "answer_score": null, "sibling_qid": "MUM-2026-02-1280-Q001", "sibling_text": "type of ship done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7206937074661255, "sibling_score": 0.7206937074661255, "answer_score": 0.4888024777173996, "sibling_qid": "KOC-2026-09-2198-Q001", "sibling_text": "type a and b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.7061446905136108, "sibling_score": 0.7061446905136108, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false } ] }, { "qid": "KOL-2022-06-0646-Q005", "text": "Internal stake holders", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOL-2022-06-0646", "tray": "new", "candidates": [ { "answer_id": "IMO-CODES-P03-002", "score": 0.4848841428756714, "sibling_score": 0.4848841428756714, "answer_score": 0.2686301827430725, "sibling_qid": "KOC-2025-12-0756-Q009", "sibling_text": "imo sub comitee internal no question", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": true }, { "answer_id": "ISM-AUDIT-P01-002", "score": 0.44983914494514465, "sibling_score": 0.44983914494514465, "answer_score": null, "sibling_qid": "MUM-2026-06-3581-Q006", "sibling_text": "who does internal audit", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM/SMS audits and verifications — types, who conducts them, intervals and validity", "cross_family": false }, { "answer_id": "ISM-AUD-P02-002", "score": 0.4476933479309082, "sibling_score": 0.4476933479309082, "answer_score": null, "sibling_qid": "KOC-2026-01-2087-Q013", "sibling_text": "what is the purpose of ism internal", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM Code — what it is, purpose, objectives and structure", "cross_family": false } ] }, { "qid": "KOL-2022-06-0647-Q001", "text": "Type of ship- oil tankers", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2022-06-0647", "tray": "review", "candidates": [ { "answer_id": "COT-01", "score": 0.8146615028381348, "sibling_score": 0.8146615028381348, "answer_score": 0.597155487537384, "sibling_qid": "KOC-2026-04-0892-Q003", "sibling_text": "type of ship sailed tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Oil-tanker types, definitions and cargo capability", "cross_family": false }, { "answer_id": "IBC-BCH-B-004", "score": 0.779098391532898, "sibling_score": 0.779098391532898, "answer_score": null, "sibling_qid": "MUM-2026-05-3156-Q001", "sibling_text": "type of ships chemical tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Certificate of Fitness and MARPOL Annex II in practice", "cross_family": false }, { "answer_id": "BCH-IBC-A-001", "score": 0.7561909556388855, "sibling_score": 0.7561909556388855, "answer_score": 0.5457911610603332, "sibling_qid": "CHE-2026-03-0128-Q001", "sibling_text": "type of chemical tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type 1, Type 2 and Type 3 chemical tankers — the ship-type classification", "cross_family": false } ] }, { "qid": "KOL-2022-06-0647-Q003", "text": "Who are the 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How is eliminated in boiler.", "family": "Boilers - Operations & Firing", "subtopic": "Boiler Water Circulation", "tid": "KOL-2022-06-1690", "tray": "review", "candidates": [ { "answer_id": "DP-TX-006", "score": 0.7176433205604553, "sibling_score": 0.7176433205604553, "answer_score": 0.4929259657859802, "sibling_qid": "KOL-2025-08-2012-Q004", "sibling_text": "swell and shrink in boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler swell and shrink in relation to DP level measurement and control", "cross_family": false }, { "answer_id": "LWL-004", "score": 0.710581362247467, "sibling_score": 0.710581362247467, "answer_score": 0.5389163672924041, "sibling_qid": "KOL-2021-08-3446-Q003", "sibling_text": "what is swell and shrinkage how swell and shrinkage is nullified in boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "What are swell and shrinkage, and how are they nullified in the boiler?", "cross_family": false }, { "answer_id": "LWL-001", "score": 0.594890296459198, "sibling_score": 0.594890296459198, "answer_score": null, "sibling_qid": "KOL-2020-03-3333-Q004", "sibling_text": "explain 3 element boiler water level controller how does it remove the impact of swell and shrinkage what do you mean by the term offset", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Explain three-element boiler water level control — the three elements, how it removes swell and shrinkage, and how the PID works", "cross_family": false } ] }, { "qid": "KOL-2022-06-1691-Q005", "text": "bottom end bolt stretch How to measure Prevention taken from failing", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Connecting Rod & Bolts", "tid": "KOL-2022-06-1691", "tray": "new", "candidates": [ { "answer_id": "CRB-005", "score": 0.6088022589683533, "sibling_score": 0.6088022589683533, "answer_score": null, "sibling_qid": "KOC-2023-10-0985-Q009", "sibling_text": "bottom end bolt pretensioning", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Explain connecting rod bolt design: draw it, and state the type of thread, the material, why angle tightening is used, and why the bolt is pretensioned.", "cross_family": false }, { "answer_id": "PRE-TEN-008", "score": 0.5666433572769165, "sibling_score": 0.5666433572769165, "answer_score": 0.47072537839412687, "sibling_qid": "CHE-2026-04-0502-Q003", "sibling_text": "ae con rod bolt new one before going to use how you do stretch free", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "New auxiliary-engine connecting-rod bolt — checking stretch-free condition before use", "cross_family": true }, { "answer_id": "CRB-002", "score": 0.5599223375320435, "sibling_score": 0.5599223375320435, "answer_score": 0.4641990005970001, "sibling_qid": "MUM-2025-07-1143-Q009", "sibling_text": "con rod bolts elongation how and when to check", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What checks and tests are carried out on connecting rod bolts? 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Give the definition and name some.", "cross_family": false }, { "answer_id": "ISMNC-003", "score": 0.7551965713500977, "sibling_score": 0.7551965713500977, "answer_score": 0.4331925123929977, "sibling_qid": "MUM-2025-01-0238-Q006", "sibling_text": "major non conformity and non conformity", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Differentiate between a major non-conformity and a non-conformity under the ISM Code.", "cross_family": false } ] }, { "qid": "KOL-2022-07-0655-Q005", "text": "Sart", "family": "SOLAS - LSA & Lifeboats", "subtopic": "EPIRB / SART", "tid": "KOL-2022-07-0655", "tray": "review", "candidates": [ { "answer_id": "EPIRB-SART-002", "score": 0.7273886799812317, "sibling_score": 0.7273886799812317, "answer_score": 0.2666740223765373, "sibling_qid": "CHE-2026-04-0148-Q002", "sibling_text": "sart", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What is an AIS-SART and how does it differ from a radar SART?", "cross_family": false }, { "answer_id": "STR-DEC-A-001", "score": 0.5102113485336304, "sibling_score": 0.5102113485336304, "answer_score": null, "sibling_qid": "MUM-2022-09-1353-Q002", "sibling_text": "sarter safties", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": true }, { "answer_id": "EPIRB-SART-001", "score": 0.4455280005931854, "sibling_score": 0.4455280005931854, "answer_score": 0.25702132433652874, "sibling_qid": "KOL-2019-04-0278-Q005", "sibling_text": "epirb n sart function construction use and operation of working", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What is the difference between EPIRB and SART? Give the function, construction, use and operation of each.", "cross_family": false } ] }, { "qid": "KOL-2022-07-0656-Q002", "text": "Ism elements and certificate", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOL-2022-07-0656", "tray": "new", "candidates": [ { "answer_id": "ISM-SMCDOC-A-001", "score": 0.6475592255592346, "sibling_score": 0.6475592255592346, "answer_score": null, "sibling_qid": "KOL-2025-05-0939-Q004", "sibling_text": "ism and its certificate", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM certificates: the DOC and SMC family", "cross_family": false }, { "answer_id": "ISM-SMC-B-005", "score": 0.6044594645500183, "sibling_score": 0.6044594645500183, "answer_score": null, "sibling_qid": "KOL-2023-07-0752-Q003", "sibling_text": "initial ism certificate issued and relevant documents for certificate issued", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Obtaining the DOC and SMC — who issues, who audits", "cross_family": false }, { "answer_id": "ISM-ELEM-003", "score": 0.5914775729179382, "sibling_score": 0.5914775729179382, "answer_score": 0.3863529324531555, "sibling_qid": "KOC-2026-02-0818-Q006", "sibling_text": "ism elements", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": false } ] }, { "qid": "KOL-2022-07-0657-Q003", "text": "Oil tanker AFRAMAX, how it's decided if it's AFRAMAX.", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2022-07-0657", "tray": "new", "candidates": [ { "answer_id": "TONN-008", "score": 0.6193626523017883, "sibling_score": 0.6193626523017883, "answer_score": 0.4577793717384338, "sibling_qid": "KOC-2026-03-0880-Q015", "sibling_text": "difference between vlcc ulcc aframax suezmax interms of dwt", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Ship / Tanker Size Classes by Deadweight", "cross_family": false }, { "answer_id": "TKR-TYPE-003", "score": 0.5935940146446228, "sibling_score": 0.5935940146446228, "answer_score": 0.500668379664421, "sibling_qid": "KOL-2018-01-0139-Q004", "sibling_text": "type of vessel and then different what is suezmax panamax and aframax and market condition", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "3. Tanker size classes — Panamax, Aframax, Suezmax, VLCC, ULCC", "cross_family": true }, { "answer_id": "LLST-AB-003", "score": 0.5826855897903442, "sibling_score": 0.5826855897903442, "answer_score": null, "sibling_qid": "MUM-2026-03-0861-Q002", "sibling_text": "which ship has more freeboard bulk carrier or oil tanker many cross metacentri height etc", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Why tankers carry less freeboard than bulk carriers and other dry-cargo ships", "cross_family": false } ] }, { "qid": "KOL-2022-07-0658-Q003", "text": "continental shelf", "family": "Other Conventions", "subtopic": "UNCLOS", "tid": "KOL-2022-07-0658", "tray": "review", "candidates": [ { "answer_id": "UNCLOS-004", "score": 0.8510615825653076, "sibling_score": 0.8510615825653076, "answer_score": 0.5659447222948074, "sibling_qid": "KOL-2026-03-1198-Q008", "sibling_text": "continental shelf", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is the continental shelf under UNCLOS and what is its range?", "cross_family": false }, { "answer_id": "UNCLOS-003", "score": 0.6533787250518799, "sibling_score": 0.6533787250518799, "answer_score": 0.43127645254135133, "sibling_qid": "KOL-2025-09-1054-Q007", "sibling_text": "territorial waters", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What are the maritime zones under UNCLOS — territorial waters, the contiguous zone and the international maritime boundary?", "cross_family": false }, { "answer_id": "UNCLOS-005", "score": 0.6409587860107422, "sibling_score": 0.6409587860107422, "answer_score": 0.4714884787797928, "sibling_qid": "KOC-2024-07-0359-Q001", "sibling_text": "coastal state requirements as per unclos", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is a coastal state under UNCLOS, and how does it differ from the flag state and the port state?", "cross_family": false } ] }, { "qid": "KOL-2022-07-0658-Q004", "text": "elements of ism", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOL-2022-07-0658", "tray": "review", "candidates": [ { "answer_id": "ISM-ELEM-003", "score": 0.720170795917511, "sibling_score": 0.720170795917511, "answer_score": 0.4356433808803558, "sibling_qid": "KOC-2026-02-0818-Q006", "sibling_text": "ism elements", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": false }, { "answer_id": "ISM-ELEM-002", "score": 0.6082455515861511, "sibling_score": 0.6082455515861511, "answer_score": null, "sibling_qid": "KOC-2026-02-0832-Q008", "sibling_text": "ism code explain all elements", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the ISM Code?", "cross_family": false }, { "answer_id": "ISPS-OV-001", "score": 0.6010961532592773, "sibling_score": 0.6010961532592773, "answer_score": null, "sibling_qid": "KOL-2024-11-0890-Q006", "sibling_text": "isps elements", "sibling_family": "ISPS", "via": "sibling", "answer_title": "ISPS Code: what it is, structure and key elements", "cross_family": true } ] }, { "qid": "KOL-2022-07-0660-Q001", "text": ", Safety", "family": "", "subtopic": "High Voltage System", "tid": "KOL-2022-07-0660", "tray": "review", "candidates": [ { "answer_id": "REEF-SAFE-001", "score": 0.700029730796814, "sibling_score": 0.700029730796814, "answer_score": null, "sibling_qid": "MUM-2026-03-1306-Q024", "sibling_text": "refer safeties", "sibling_family": "Safety Management & Emergency", "via": "sibling", "answer_title": "Refrigeration plant and reefer-room safeties — what protects the machinery, and what protects the man?", "cross_family": false }, { "answer_id": "IGAT-583-001", "score": 0.6706066131591797, "sibling_score": 0.6706066131591797, "answer_score": null, "sibling_qid": "KOL-2017-03-0078-Q002", "sibling_text": "i g safeties", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "State all the alarms, trips and safety cut-outs provided on a tanker inert gas (IG) system.", "cross_family": false }, { "answer_id": "MSB-ESB-D-001", "score": 0.6664043068885803, "sibling_score": 0.6664043068885803, "answer_score": null, "sibling_qid": "KOC-2023-01-1226-Q003", "sibling_text": "safties in it", "sibling_family": "", "via": "sibling", "answer_title": "Main & emergency switchboards: function, construction & ship power distribution", "cross_family": false } ] }, { "qid": "KOL-2022-07-0660-Q006", "text": "Stresses on a ship.", "family": "Ship Construction & Stability", "subtopic": "", "tid": "KOL-2022-07-0660", "tray": "review", "candidates": [ { "answer_id": "STRSTR-298-001", "score": 0.677889347076416, "sibling_score": 0.677889347076416, "answer_score": 0.529330849647522, "sibling_qid": "KOL-2025-07-0982-Q002", "sibling_text": "types of stresses in ship", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "What is stress, and what types of stress are commonly discussed in ships?", "cross_family": true }, { "answer_id": "DAM-STAB-P03-002", "score": 0.601540744304657, "sibling_score": 0.601540744304657, "answer_score": null, "sibling_qid": "KOL-2026-07-4264-Q005", "sibling_text": "damage stability criteria for your ship", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "General cargo-ship damage stability criteria and requirements", "cross_family": false }, { "answer_id": "RES-PROP-P01-002", "score": 0.6010236144065857, "sibling_score": 0.6010236144065857, "answer_score": null, "sibling_qid": "MUM-2026-01-0696-Q001S4", "sibling_text": "different types of ship resistance", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Resistance types and methods of reducing them", "cross_family": false } ] }, { "qid": "KOL-2022-07-0660-Q009", "text": "ISM extrernal stakeholders. One more that I forgot.", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOL-2022-07-0660", "tray": "new", "candidates": [ { "answer_id": "ISM-DPA-002", "score": 0.4668665826320648, "sibling_score": 0.4668665826320648, "answer_score": null, "sibling_qid": "KOC-2023-03-0172-Q004", "sibling_text": "ism who is responsible for ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "DPA basis : which convention, which code, and who is responsible for ISM", "cross_family": false }, { "answer_id": "ISM-AUDIT-P01-002", "score": 0.4652525782585144, "sibling_score": 0.4652525782585144, "answer_score": null, "sibling_qid": "KOC-2024-03-0325-Q003", "sibling_text": "external audit ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM/SMS audits and verifications — types, who conducts them, intervals and validity", "cross_family": false }, { "answer_id": "ISMNC-002", "score": 0.46135029196739197, "sibling_score": 0.46135029196739197, "answer_score": null, "sibling_qid": "MUM-2023-08-0118-Q007", "sibling_text": "what is mnc questions only asked by external name don t know", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a major non-conformity under the ISM Code? Give the definition and name some.", "cross_family": false } ] }, { "qid": "KOL-2022-07-0661-Q001", "text": "1- type of ship sailed (chemical) types of cargo carried ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2022-07-0661", "tray": "review", "candidates": [ { "answer_id": "CPFE-583-002", "score": 0.8082203269004822, "sibling_score": 0.8082203269004822, "answer_score": null, "sibling_qid": "MUM-2026-06-3604-Q002", "sibling_text": "type of ship chemical product", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Why a submerged hydraulic pump on a product or chemical tanker — and what makes a cargo pump different", "cross_family": false }, { "answer_id": "IBC-BCH-B-004", "score": 0.8006609082221985, "sibling_score": 0.8006609082221985, "answer_score": null, "sibling_qid": "MUM-2026-05-3156-Q001", "sibling_text": "type of ships chemical tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Certificate of Fitness and MARPOL Annex II in practice", "cross_family": false }, { "answer_id": "BCH-IBC-A-001", "score": 0.7716453671455383, "sibling_score": 0.7716453671455383, "answer_score": 0.5463009417057038, "sibling_qid": "CHE-2026-03-0128-Q001", "sibling_text": "type of chemical tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type 1, Type 2 and Type 3 chemical tankers — the ship-type classification", "cross_family": false } ] }, { "qid": "KOL-2022-07-0662-Q006", "text": "Pump room fire detection system, which type smoke detector, working, why not ionisation type , can we use this in engine room, Why intrinsically safe , meaning.", "family": "Fire Detection & Alarm", "subtopic": "Smoke / Fire Detector", "tid": "KOL-2022-07-0662", "tray": "review", "candidates": [ { "answer_id": "PR-SAFE-A-001", "score": 0.6997442841529846, "sibling_score": 0.6997442841529846, "answer_score": 0.5525270342826843, "sibling_qid": "KOL-2025-08-1018-Q009", "sibling_text": "pump room fire detection system how smoke detector work", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Pump-room fire detection and monitoring", "cross_family": true }, { "answer_id": "FSH-DET-002", "score": 0.6828786134719849, "sibling_score": 0.6828786134719849, "answer_score": 0.5405931919813156, "sibling_qid": "MUM-2026-02-1961-Q006", "sibling_text": "few more forget now plus all fire detectors type of smoke detector working of ionization type smoke detector self synchronous motor where used onboard", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Working of smoke detectors — ionization type and cargo-hold smoke detection", "cross_family": true }, { "answer_id": "FSH-DET-001", "score": 0.6682395935058594, "sibling_score": 0.6682395935058594, "answer_score": 0.5410101056098938, "sibling_qid": "KOC-2023-03-1812-Q005", "sibling_text": "types of fire detectors used in engine room", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Types of fire, smoke, heat and flame detectors used onboard", "cross_family": true } ] }, { "qid": "KOL-2022-07-0662-Q009", "text": "Eca and seca difference. Nox certificate for engine or ship. Regulation. 6 how framo pump works, type hydraulic pump,", "family": "Other Conventions", "subtopic": "EEZ / PSSA / Special Area", "tid": "KOL-2022-07-0662", "tray": "new", "candidates": [ { "answer_id": "AVICERT-002", "score": 0.5510560274124146, "sibling_score": 0.5510560274124146, "answer_score": null, "sibling_qid": "KOL-2020-03-0406-Q004", "sibling_text": "certificated u need to check as 2 e for engine room regarding marpol annex 6", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "As Second Engineer, what certificates and documents would you check and present to the surveyor for an Annex VI survey?", "cross_family": true }, { "answer_id": "CPFE-583-010", "score": 0.5509821772575378, "sibling_score": 0.5509821772575378, "answer_score": null, "sibling_qid": "MUM-2026-03-1294-Q003", "sibling_text": "what is the what type of hydraulic pump is used in framo system", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "The hydraulic circuit — feed pump, HP and LP lines, filters", "cross_family": true }, { "answer_id": "MEB-MEC-P03-003", "score": 0.5498406887054443, "sibling_score": 0.5498406887054443, "answer_score": null, "sibling_qid": "KOL-2018-10-1421-Q001", "sibling_text": "1 me engine hydraulic side safety and exhaust side safety redundancy which type of pump working", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "ME hydraulic power supply (HPS) & safeties", "cross_family": true } ] }, { "qid": "KOL-2022-07-0663-Q005", "text": "Static and dynamic loading of lifeboat. Rao, 6. Fixed firefighting system, what is difference between sprinkler and Hypermist.", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Lifeboat Static / Dynamic Test", "tid": "KOL-2022-07-0663", "tray": "review", "candidates": [ { "answer_id": "FIRE-P02-04", "score": 0.6644760370254517, "sibling_score": 0.6644760370254517, "answer_score": 0.5410575777292251, "sibling_qid": "KOL-2020-03-0399-Q002", "sibling_text": "difference in operation of fire extinguishing via hypermist and sprinkler system", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist vs sprinkler and CO₂ — comparison and coexistence", "cross_family": true }, { "answer_id": "FIRE-P01-03", "score": 0.6237387657165527, "sibling_score": 0.6237387657165527, "answer_score": null, "sibling_qid": "MUM-2023-10-0138-Q003", "sibling_text": "fixed fire fighting systems hyper mist questions nozzles it s function etc", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist — how the mist is formed and how it extinguishes fire", "cross_family": true }, { "answer_id": "FIRE-P02-01", "score": 0.6119962930679321, "sibling_score": 0.6119962930679321, "answer_score": null, "sibling_qid": "MUM-2023-08-2740-Q004", "sibling_text": "fixed fire fighting system hypermist regulation", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist — SOLAS/FSS basis and ECR/machinery-space arrangement", "cross_family": true } ] }, { "qid": "KOL-2022-07-1693-Q002", "text": "Type of engine work on....i told MC and MCC both...", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOL-2022-07-1693", "tray": "review", "candidates": [ { "answer_id": "MCC-MEB-P01-001", "score": 0.7165374159812927, "sibling_score": 0.7165374159812927, "answer_score": 0.45477636754512785, "sibling_qid": "MUM-2026-09-3997-Q002", "sibling_text": "type of engine worked me mcc me b and rta", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "MC-C (\"Compact\") engine — design and the main constructional differences from MC", "cross_family": false }, { "answer_id": "EGTP-P02-005", "score": 0.6875770688056946, "sibling_score": 0.6875770688056946, "answer_score": 0.4939246535301208, "sibling_qid": "MUM-2026-06-3500-Q002", "sibling_text": "mc vs me engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "MC / MC-C / ME-C and Electronically Controlled Engines", "cross_family": false }, { "answer_id": "ALT-MTN-B-001", "score": 0.6542508006095886, "sibling_score": 0.6542508006095886, "answer_score": null, "sibling_qid": "MUM-2026-02-1281-Q001", "sibling_text": "main engine specification mc c", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Routine onboard alternator maintenance checks", "cross_family": false } ] }, { "qid": "KOL-2022-07-1696-Q002", "text": "CYL JACKET COOLING, ARRANGEMENT FOR WTER TO ENTER IN TANGENTIAL BORE?", "family": "Heat Exchangers & Coolers", "subtopic": "JCW System", "tid": "KOL-2022-07-1696", "tray": "new", "candidates": [ { "answer_id": "CTRL-TL-009", "score": 0.5640342235565186, "sibling_score": 0.5640342235565186, "answer_score": 0.4272543430328369, "sibling_qid": "KOL-2025-08-2007-Q004", "sibling_text": "jacket water controller cascade", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Jacket-water temperature control (and when it is a true cascade)", "cross_family": true }, { "answer_id": "STHX-008", "score": 0.5500323176383972, "sibling_score": 0.5500323176383972, "answer_score": null, "sibling_qid": "MUM-2025-12-0989-Q007", "sibling_text": "main condenser how tubes are attached", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "STHX-08 — Condensers (main / auxiliary / dump): tube attachment, testing, renewal and safety", "cross_family": false }, { "answer_id": "STHX-001", "score": 0.547141432762146, "sibling_score": 0.547141432762146, "answer_score": null, "sibling_qid": "CHE-2026-04-0257-Q009", "sibling_text": "shell and tube type cooler components", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "STHX-01 — Construction, parts, materials, tube fitting, pass arrangement and flow", "cross_family": false } ] }, { "qid": "KOL-2022-07-1698-Q001", "text": "Type of engine worked on. Ignition delay, factors involved and why.", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Quality / CCAI", "tid": "KOL-2022-07-1698", "tray": "review", "candidates": [ { "answer_id": "FQCC-583-B-006", "score": 0.6516442894935608, "sibling_score": 0.6516442894935608, "answer_score": 0.5625248551368713, "sibling_qid": "KOL-2021-11-1645-Q004", "sibling_text": "wht is ignition delay and and reason 5", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Ignition delay — the gap between injection and combustion, and its reasons", "cross_family": false }, { "answer_id": "FQCC-583-A-001", "score": 0.6312840580940247, "sibling_score": 0.6312840580940247, "answer_score": null, "sibling_qid": "KOL-2019-06-1459-Q004", "sibling_text": "ignition lag fuel quality ccai and cetane value", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "CCAI — what it is, how it is calculated, and what it is really for", "cross_family": false }, { "answer_id": "INDCARD-C-001", "score": 0.5850169062614441, "sibling_score": 0.5850169062614441, "answer_score": 0.5184114515781403, "sibling_qid": "CHE-2025-08-0192-Q006", "sibling_text": "how you will find ignition delay", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Early/late injection, ignition delay & after-burning on the indicator card", "cross_family": true } ] }, { "qid": "KOL-2022-07-1699-Q002", "text": "Propeller cavitation, how much is deisel engine efficiency, and what are all losses.", "family": "Shafting, Propeller & Rudder", "subtopic": "Stern Tube / Shafting / Propeller / Rudder", "tid": "KOL-2022-07-1699", "tray": "new", "candidates": [ { "answer_id": "SPR-STERN-001", "score": 0.5773285627365112, "sibling_score": 0.5773285627365112, "answer_score": null, "sibling_qid": "MUM-2026-09-3973-Q005", "sibling_text": "efficiency of propeller", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Propeller design factors, efficiency, handedness & material", "cross_family": false }, { "answer_id": "RES-PROP-P03-002", "score": 0.5150848627090454, "sibling_score": 0.5150848627090454, "answer_score": 0.4707063794136047, "sibling_qid": "KOL-2020-01-0383-Q002", "sibling_text": "propeller efficiency", "sibling_family": "", "via": "sibling", "answer_title": "2. 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Many cross about Pin arrangement either welded, tight fit, screwed. Pin tight on which side lose on which end or other arrangement.", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2022-07-1920", "tray": "new", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.6325633525848389, "sibling_score": 0.6325633525848389, "answer_score": null, "sibling_qid": "KOL-2025-07-1814-Q004", "sibling_text": "how spindle is fitted in exhaust valve", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": true }, { "answer_id": "ECON-EGB-004", "score": 0.6262971758842468, "sibling_score": 0.6262971758842468, "answer_score": null, "sibling_qid": "CHE-2026-08-3884-Q001", "sibling_text": "safety valve adjusting procedure and cross", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Safety-valve setting after overhaul & why set higher than the boiler", "cross_family": false }, { "answer_id": "MR-DS-PV-B-006", "score": 0.625219464302063, "sibling_score": 0.625219464302063, "answer_score": null, "sibling_qid": "KOC-2026-09-2180-Q009", "sibling_text": "full bore safety valve construction", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "6. Deck isolating valve, deck relief/safety devices, and cargo-tank pressure", "cross_family": false } ] }, { "qid": "KOL-2022-07-1922-Q002", "text": "what type of engine sailed 6S42MC. Can you explain,I told yes , he told ok no need to explain.", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOL-2022-07-1922", "tray": "new", "candidates": [ { "answer_id": "MCC-MEB-P01-001", "score": 0.6373180150985718, "sibling_score": 0.6373180150985718, "answer_score": 0.41644518971443173, "sibling_qid": "KOC-2022-07-2031-Q002", "sibling_text": "type of ship engine model 6s70mc c c means compact explain", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "MC-C (\"Compact\") engine — design and the main constructional differences from MC", "cross_family": true }, { "answer_id": "PMAX-PCOMP-BF041-004", "score": 0.6062073111534119, "sibling_score": 0.6062073111534119, "answer_score": null, "sibling_qid": "KOC-2021-08-1765-Q013", "sibling_text": "p max of mc c engine 6s50mc c since i sailed in this", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What is Pmax on your engine?", "cross_family": true }, { "answer_id": "ALT-MTN-B-001", "score": 0.5903447866439819, "sibling_score": 0.5903447866439819, "answer_score": null, "sibling_qid": "CHE-2026-05-0597-Q001", "sibling_text": "engine specs 6s46mc c7 need to tell clearly along with mcr rpm bhp", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Routine onboard alternator maintenance checks", "cross_family": false } ] }, { "qid": "KOL-2022-07-1922-Q004", "text": "Scavenge press value and exhaust tepm press he want values. Driving power of TC comes from where.", "family": "Turbocharger", "subtopic": "Supercharging", "tid": "KOL-2022-07-1922", "tray": "new", "candidates": [ { "answer_id": "TURBO-CS-P03-019", "score": 0.5817369818687439, "sibling_score": 0.5817369818687439, "answer_score": 0.4468132108449936, "sibling_qid": "KOL-2020-02-1520-Q011", "sibling_text": "exhaust gas temperature and pressure just before entry into the turbine", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Representative exhaust conditions at turbine inlet (temperature / pressure)", "cross_family": false }, { "answer_id": "TURBO-CS-P03-006", "score": 0.5809816122055054, "sibling_score": 0.5809816122055054, "answer_score": null, "sibling_qid": "KOL-2022-05-3536-Q009", "sibling_text": "turbo charger k l m values process", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharger clearances: axial float, radial, K/L/M, effects", "cross_family": false }, { "answer_id": "TC-CS-P01-012", "score": 0.5773505568504333, "sibling_score": 0.5773505568504333, "answer_score": null, "sibling_qid": "KOC-2024-12-0930-Q001", "sibling_text": "why t c required for main engine", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "L·Why a turbocharger is required on the main engine", "cross_family": false } ] }, { "qid": "KOL-2022-07-1922-Q009", "text": "Seamless pile ?Mac valve name ?", "family": "Workshop & Welding", "subtopic": "Pipe Fabrication", "tid": "KOL-2022-07-1922", "tray": "new", "candidates": [ { "answer_id": "MAC-598-001", "score": 0.5558046102523804, "sibling_score": 0.5558046102523804, "answer_score": null, "sibling_qid": "KOC-2025-12-1084-Q004", "sibling_text": "mac valve parts explain", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "The main air compressor valve — arrangement, parts, and why the construction is so complex", "cross_family": true }, { "answer_id": "FIVA-220-001", "score": 0.49409306049346924, "sibling_score": 0.49409306049346924, "answer_score": null, "sibling_qid": "KOL-2025-08-2009-Q004", "sibling_text": "fiva valve construction operation", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "FIVA valve — construction, function and basic operation", "cross_family": true }, { "answer_id": "MR-DS-PV-B-004", "score": 0.4904763400554657, "sibling_score": 0.4904763400554657, "answer_score": null, "sibling_qid": "KOC-2022-12-0118-Q003", "sibling_text": "pv valve pv breaker setting mast riser", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "4. Purpose, arrangement, and safety function of the mast riser / high-velocity vent", "cross_family": true } ] }, { "qid": "KOL-2022-07-2573-Q003", "text": "Advantage and disadvantage of ac and dc", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Active / Reactive / Apparent Power", "tid": "KOL-2022-07-2573", "tray": "review", "candidates": [ { "answer_id": "VFD-INV-P02-005", "score": 0.6822753548622131, "sibling_score": 0.6822753548622131, "answer_score": null, "sibling_qid": "CHE-2026-02-0479-Q010", "sibling_text": "why dc is used instead of ac and how is it converted", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "How do rectifier, DC link and inverter stages convert AC to DC and DC to AC?", "cross_family": false }, { "answer_id": "ALT-GEN-P04-005", "score": 0.6599324345588684, "sibling_score": 0.6599324345588684, "answer_score": 0.506098136305809, "sibling_qid": "KOC-2024-06-1364-Q002", "sibling_text": "advantages of ac", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "AC generator versus DC generator, and why ship supply is AC", "cross_family": true }, { "answer_id": "XFMR-THY-D-002", "score": 0.6474282145500183, "sibling_score": 0.6474282145500183, "answer_score": null, "sibling_qid": "MUM-2026-01-1858-Q007", "sibling_text": "which one ac or dc", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Why a transformer needs AC and cannot transform DC", "cross_family": false } ] }, { "qid": "KOL-2022-07-2574-Q001", "text": "How a motor is rated and Items given on the motor name plate. A motor is of 440v or 220v onboard.", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator / Generator", "tid": "KOL-2022-07-2574", "tray": "review", "candidates": [ { "answer_id": "EDG-P01-004", "score": 0.661810040473938, "sibling_score": 0.661810040473938, "answer_score": null, "sibling_qid": "KOC-2023-05-1258-Q006", "sibling_text": "emg supplies list 440 v nd 110v", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Emergency generator — explain it as a 2nd Engineer", "cross_family": false }, { "answer_id": "ALT-GEN-P02-001", "score": 0.6444206833839417, "sibling_score": 0.6444206833839417, "answer_score": null, "sibling_qid": "KOC-2024-10-1422-Q003", "sibling_text": "alternator rating onboard kva and kw", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Alternator/generator specifications, ratings and ship electrical supply details", "cross_family": false }, { "answer_id": "ALT-GEN-P03-001", "score": 0.6403103470802307, "sibling_score": 0.6403103470802307, "answer_score": null, "sibling_qid": "MUM-2025-12-1821-Q004", "sibling_text": "principle by generator generate 440v ac", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Alternator/generator working principle and onboard electricity generation", "cross_family": false } ] }, { "qid": "KOL-2022-07-2575-Q002", "text": "What is rectifier, converter, inverter", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Zener / Diode / Rectifier", "tid": "KOL-2022-07-2575", "tray": "new", "candidates": [ { "answer_id": "VFD-INV-P02-005", "score": 0.6477896571159363, "sibling_score": 0.6477896571159363, "answer_score": 0.5240629136562347, "sibling_qid": "CHE-2026-03-0360-Q006", "sibling_text": "what is inverter and rectifier", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "How do rectifier, DC link and inverter stages convert AC to DC and DC to AC?", "cross_family": false }, { "answer_id": "XFMR-THY-D-001", "score": 0.5961584448814392, "sibling_score": 0.5961584448814392, "answer_score": null, "sibling_qid": "KOL-2017-12-2161-Q003", "sibling_text": "explain transformer converter inverter transmitter", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Transformer — principle and working", "cross_family": false }, { "answer_id": "EPC-P01-03", "score": 0.588812530040741, "sibling_score": 0.588812530040741, "answer_score": 0.4071276843547821, "sibling_qid": "KOC-2024-09-0413-Q003", "sibling_text": "rectifiers", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Rectifiers — definition, types, and where they are used on board", "cross_family": false } ] }, { "qid": "KOL-2022-07-2575-Q003", "text": "Steering gear safeties", "family": "Steering Gear & Hydraulics", "subtopic": "Steering Gear System", "tid": "KOL-2022-07-2575", "tray": "review", "candidates": [ { "answer_id": "SG-055-B-002", "score": 0.7996311187744141, "sibling_score": 0.7996311187744141, "answer_score": 0.5370621681213379, "sibling_qid": "MUM-2026-05-3189-Q009", "sibling_text": "steering gear safeties", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Steering-gear alarms, trips and electrical / hydraulic safeties", "cross_family": false }, { "answer_id": "STG-055-C-001", "score": 0.7758055329322815, "sibling_score": 0.7758055329322815, "answer_score": 0.5034308314323425, "sibling_qid": "KOL-2026-07-4249-Q006", "sibling_text": "safematic arrangement in steering gear", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Safematic steering gear, redundancy and the single-failure criterion", "cross_family": false }, { "answer_id": "ELEC-SAFE-006", "score": 0.5584693074226379, "sibling_score": null, "answer_score": 0.5584693074226379, "sibling_qid": "", "sibling_text": "steering gear electrical safety and motor insulation essential service duplicated supplies often one from the emergency switchboard motors have short circuit protection and an overload alarm no normal overload trip that would stop steering", "sibling_family": "", "via": "answer_title", "answer_title": "Steering gear electrical safety and motor insulation", "cross_family": false } ] }, { "qid": "KOL-2022-07-2578-Q003", "text": "types of starter, DOL, where used", "family": "Electrical - Motors & Starters", "subtopic": "DOL Starter", "tid": "KOL-2022-07-2578", "tray": "review", "candidates": [ { "answer_id": "STARTER-DEC-B-003", "score": 0.6754510998725891, "sibling_score": 0.6754510998725891, "answer_score": 0.35296417474746705, "sibling_qid": "KOC-2026-09-2184-Q010", "sibling_text": "explain dol starter dol starters where used", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "DOL starter — use, current, range and limits", "cross_family": false }, { "answer_id": "STR-DEC-A-001", "score": 0.666029155254364, "sibling_score": 0.666029155254364, "answer_score": 0.4018832817673683, "sibling_qid": "KOC-2025-10-1593-Q002", "sibling_text": "types of starters and dol difference from other starters", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "STARTER-DEC-B-002", "score": 0.6110038757324219, "sibling_score": 0.6110038757324219, "answer_score": null, "sibling_qid": "KOL-2026-04-2984-Q002", "sibling_text": "explain dol starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Why a starter is needed & reducing starting current", "cross_family": false } ] }, { "qid": "KOL-2022-07-2578-Q004", "text": "what do u understand by phase, frequncy", "family": "Electrical - Generator & Alternator", "subtopic": "Frequency", "tid": "KOL-2022-07-2578", "tray": "new", "candidates": [ { "answer_id": "SDC-003", "score": 0.6305773854255676, "sibling_score": 0.6305773854255676, "answer_score": null, "sibling_qid": "KOC-2023-11-1301-Q010", "sibling_text": "what is phase", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Line and phase relationships — and the 10-amp trap", "cross_family": false }, { "answer_id": "SYNC-B-002", "score": 0.5979115962982178, "sibling_score": 0.5979115962982178, "answer_score": 0.4036824345588684, "sibling_qid": "KOL-2018-04-2188-Q002", "sibling_text": "what is in phase", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Phase angle and the in-phase (12 o’clock) condition", "cross_family": false }, { "answer_id": "PH-SEQ-001", "score": 0.5840521454811096, "sibling_score": 0.5840521454811096, "answer_score": 0.41179099678993225, "sibling_qid": "MUM-2026-09-3911-Q007", "sibling_text": "what is phase sequence", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "What is phase sequence, and how is it related to phase angle?", "cross_family": false } ] }, { "qid": "KOL-2022-07-2584-Q005", "text": "Iccp working.?", "family": "Electrical - ICCP & Cathodic Protection", "subtopic": "ICCP", "tid": "KOL-2022-07-2584", "tray": "review", "candidates": [ { "answer_id": "ICCP-119-P01-001", "score": 0.7796359658241272, "sibling_score": 0.7796359658241272, "answer_score": 0.4493618607521057, "sibling_qid": "MUM-2026-01-1858-Q002", "sibling_text": "iccp working", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP — purpose, principle and basic working", "cross_family": false }, { "answer_id": "ICCP-119-P01-002", "score": 0.3884226053953171, "sibling_score": null, "answer_score": 0.3884226053953171, "sibling_qid": "", "sibling_text": "iccp circuit control arrangement construction and main components", "sibling_family": "", "via": "answer_title", "answer_title": "ICCP circuit / control arrangement, construction and main components", "cross_family": false }, { "answer_id": "ICCP-119-P01-003", "score": 0.33601799607276917, "sibling_score": null, "answer_score": 0.33601799607276917, "sibling_qid": "", "sibling_text": "iccp values impressed current meaning anode cathode roles and materials", "sibling_family": "", "via": "answer_title", "answer_title": "ICCP values, impressed-current meaning, anode/cathode roles and materials", "cross_family": false } ] }, { "qid": "KOL-2022-07-2584-Q006", "text": "How ICCP electrodes are connected to hull and on which positions?", "family": "Electrical - ICCP & Cathodic Protection", "subtopic": "ICCP", "tid": "KOL-2022-07-2584", "tray": "review", "candidates": [ { "answer_id": "REF-CELL-003", "score": 0.7478975653648376, "sibling_score": 0.7478975653648376, "answer_score": null, "sibling_qid": "KOL-2018-05-2197-Q004", "sibling_text": "how reference electrode and anode attached to hull", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "Construction, material, fitting and location of the reference cell", "cross_family": false }, { "answer_id": "REF-CELL-002", "score": 0.7397629022598267, "sibling_score": 0.7397629022598267, "answer_score": null, "sibling_qid": "KOL-2021-03-2441-Q004", "sibling_text": "iccp construction why two sets anodes are used fwd and aft why not amidships how anodes are connected to ships hull how does the reference cell measure the potential", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "How the reference cell measures hull potential and generates the feedback signal", "cross_family": false }, { "answer_id": "ICCP-P02-002", "score": 0.7226758003234863, "sibling_score": 0.7226758003234863, "answer_score": 0.5129894971847534, "sibling_qid": "MUM-2026-05-3083-Q005", "sibling_text": "checks on iccp sys in dd cross how anodes are attached to hull", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP drydock checks — anodes, shields, reference cells, bonding, hull", "cross_family": false } ] }, { "qid": "KOL-2022-07-3545-Q001", "text": "Which type of safety vv used on your ship, before survey what all checks.", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2022-07-3545", "tray": "new", "candidates": [ { "answer_id": "LBT-TEST-B-005", "score": 0.6384124755859375, "sibling_score": 0.6384124755859375, "answer_score": null, "sibling_qid": "KOL-2026-05-0049-Q003", "sibling_text": "checks as 2nd engineer on life boat davit checks before safety equipment survey", "sibling_family": "", "via": "sibling", "answer_title": "Checks after the dynamic/overload load test", "cross_family": false }, { "answer_id": "LB-SURV-C-011", "score": 0.6323224306106567, "sibling_score": 0.6323224306106567, "answer_score": null, "sibling_qid": "KOL-2018-08-0212-Q004", "sibling_text": "enclosed lifeboat checks during survey", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Enclosed lifeboat — survey checks and type distinctions", "cross_family": true }, { "answer_id": "LB-SURV-C-002", "score": 0.6267030835151672, "sibling_score": 0.6267030835151672, "answer_score": null, "sibling_qid": "KOL-2024-09-0867-Q001", "sibling_text": "lifeboat survey what all checks you done before carrying out survey", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Preparing the lifeboat and its engine for survey as 2/E", "cross_family": true } ] }, { "qid": "KOL-2022-07-3546-Q002", "text": "Rudder Career brg details. How much clearance. Purpose.", "family": "Steering Gear & Hydraulics", "subtopic": "Tiller / Rudder Stock", "tid": "KOL-2022-07-3546", "tray": "new", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.5473757386207581, "sibling_score": 0.5473757386207581, "answer_score": 0.3446636214852333, "sibling_qid": "KOL-2018-04-1367-Q004", "sibling_text": "3 rudder clearence", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "RUD-DROP-003", "score": 0.5123424530029297, "sibling_score": 0.5123424530029297, "answer_score": null, "sibling_qid": "CHE-2026-05-0531-Q003", "sibling_text": "rudder drop how to check if clearance more what will u do in sailing", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Rudder drop at the limit: the decision", "cross_family": false }, { "answer_id": "RUD-DROP-002", "score": 0.41428054720163343, "sibling_score": null, "answer_score": 0.41428054720163343, "sibling_qid": "", "sibling_text": "rudder clearances which where and how taken pintle bush clearance at each pintle top bottom f a and p s on long feeler gauges or pintle od vs bush id by caliper top mid bottom the maximum is the clearance renew the bush at the maker class limit carrier bearing wear down the rudder drop poker trammel gauge hull datum to stock mark against the recorded newbuilding reading", "sibling_family": "", "via": "answer_title", "answer_title": "Rudder clearances: which, where and how taken", "cross_family": false } ] }, { "qid": "KOL-2022-07-3546-Q004", "text": "Crankcase door securing arrangements. What if stud id broken? How to remove? - Didn't accept Stud extractor. He was expecting even a simpler way.", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankcase Relief Door", "tid": "KOL-2022-07-3546", "tray": "review", "candidates": [ { "answer_id": "BBR-001", "score": 0.66752690076828, "sibling_score": 0.66752690076828, "answer_score": 0.48266276717185974, "sibling_qid": "KOL-2022-01-3505-Q006", "sibling_text": "stud broken how to remove easily", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "How do you extract a broken or sheared stud/bolt from machinery or structure?", "cross_family": true }, { "answer_id": "CRKPIN-P02-003", "score": 0.6075423955917358, "sibling_score": 0.6075423955917358, "answer_score": null, "sibling_qid": "KOL-2021-07-3431-Q001", "sibling_text": "crank pin of me got oval how to reach port what works to suggest to workshop", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankpin or bearing beyond repair / no spare — casualty action", "cross_family": false }, { "answer_id": "CRD-002", "score": 0.5933262705802917, "sibling_score": 0.5933262705802917, "answer_score": null, "sibling_qid": "KOL-2021-08-1610-Q002", "sibling_text": "criteria for crankcase relief door how much door area and how much engine size at this point i told him i am not prepared for motor and i only want to attempt electrical oral he agreed", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Regulations & criteria — applicability, area, material, arrester, opening pressure", "cross_family": false } ] }, { "qid": "KOL-2022-07-3546-Q006", "text": "FWG eductor working and need. Few more I don't remember.", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "KOL-2022-07-3546", "tray": "new", "candidates": [ { "answer_id": "FWG-RO-003", "score": 0.42815133929252625, "sibling_score": 0.42815133929252625, "answer_score": null, "sibling_qid": "CHE-2026-05-0533-Q008", "sibling_text": "checks if fwg not getting production", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "The FWG is not producing enough water or its efficiency has dropped. Reasons, checks and action?", "cross_family": false }, { "answer_id": "IRT-A-006", "score": 0.3954772651195526, "sibling_score": 0.3954772651195526, "answer_score": null, "sibling_qid": "MUM-2025-10-1720-Q006", "sibling_text": "and one more about megger and hv something don t remember", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "High-voltage IR test - procedure, HV vs LV megger, safety", "cross_family": true }, { "answer_id": "EEDI-B-002", "score": 0.39269721508026123, "sibling_score": 0.39269721508026123, "answer_score": null, "sibling_qid": "KOL-2025-08-1024-Q005", "sibling_text": "eedi formula wanted to listen attained eedi formula", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Attained EEDI, required EEDI, reference line value and reduction factor", "cross_family": true } ] }, { "qid": "KOL-2022-07-3547-Q003", "text": "How to repair a cracked welding in dry dock?", "family": "Workshop & Welding", "subtopic": "Crack on Main Deck", "tid": "KOL-2022-07-3547", "tray": "review", "candidates": [ { "answer_id": "HULL-DD-001", "score": 0.7467013001441956, "sibling_score": 0.7467013001441956, "answer_score": 0.5989776164293289, "sibling_qid": "KOL-2023-08-3630-Q002", "sibling_text": "crack on weld on hull in dry dock how to repair", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "1. Hull plate / shell-weld crack repair in drydock", "cross_family": true }, { "answer_id": "PW-327-003", "score": 0.7432039380073547, "sibling_score": 0.7432039380073547, "answer_score": 0.5154736518859863, "sibling_qid": "MUM-2022-09-2145-Q010", "sibling_text": "if in drydock crack on shell plate welding action if no class surveyor available", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "3. Shell / deck plate repair and renewal in dry dock (class context)", "cross_family": false }, { "answer_id": "WBS-C-005", "score": 0.6958634853363037, "sibling_score": 0.6958634853363037, "answer_score": 0.5147443950176239, "sibling_qid": "MUM-2026-01-1238-Q007", "sibling_text": "if crack on deck and need to do welding which welding to do process what are the checks to do welding how to ensure welding is satisfactory", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Crack and leak repair — deck plate, steam line, air receiver and other shipboard cracks", "cross_family": false } ] }, { "qid": "KOL-2022-07-3548-Q004", "text": "FWG SALINITY HIGH, REASON?", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "KOL-2022-07-3548", "tray": "review", "candidates": [ { "answer_id": "FWG-RO-002", "score": 0.7320986390113831, "sibling_score": 0.7320986390113831, "answer_score": 0.46497208178043364, "sibling_qid": "MUM-2025-05-2289-Q004", "sibling_text": "fwg high salinity reasons", "sibling_family": "Fresh Water & Domestic Systems", "via": "sibling", "answer_title": "The FWG salinity alarm keeps sounding. What are the reasons for high salinity?", "cross_family": true }, { "answer_id": "BWTEST-A-002", "score": 0.6372494101524353, "sibling_score": 0.6372494101524353, "answer_score": 0.4314633011817932, "sibling_qid": "MUM-2026-03-1306-Q021", "sibling_text": "frequent salinity alarm coming reasons and why", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "What does high boiler-water chloride, salinity or TDS indicate, and what action is required?", "cross_family": false }, { "answer_id": "CASC-COND-004", "score": 0.4954158067703247, "sibling_score": 0.4954158067703247, "answer_score": 0.45497816205024716, "sibling_qid": "KOC-2025-07-1923-Q008", "sibling_text": "how much is sw salinity if high amount of sw ingress to cascade tank by any reason how will you find salinity of boiler water in cascade tank", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Sea-water salinity, and dealing with sea-water ingress into the cascade tank", "cross_family": true } ] }, { "qid": "KOL-2022-07-3550-Q004", "text": "Not remember Then Int asked-", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOL-2022-07-3550", "tray": "new", "candidates": [ { "answer_id": "VIB-BAL-B-003", "score": 0.6410976648330688, "sibling_score": 0.6410976648330688, "answer_score": null, "sibling_qid": "KOL-2018-08-0204-Q006", "sibling_text": "not remember", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Torsional vibration: what it is, what causes it, how it is controlled", "cross_family": true }, { "answer_id": "MIP-264-001", "score": 0.5213632583618164, "sibling_score": 0.5213632583618164, "answer_score": null, "sibling_qid": "KOL-2018-07-1395-Q005", "sibling_text": "don t rem mep", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Define MEP / IMEP / MIP and their significance", "cross_family": true }, { "answer_id": "BWMS-C-002", "score": 0.5205528140068054, "sibling_score": 0.5205528140068054, "answer_score": null, "sibling_qid": "KOL-2022-05-0641-Q005", "sibling_text": "bwts one more question but forgot", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Types of BWTS and their working principles", "cross_family": true } ] }, { "qid": "KOL-2022-07-3551-Q001", "text": "How Air fuel ratio is maintained for boiler combustion process.", "family": "Boilers - Operations & Firing", "subtopic": "Air Fuel Ratio", "tid": "KOL-2022-07-3551", "tray": "review", "candidates": [ { "answer_id": "AFR-BF68-001", "score": 0.7363951802253723, "sibling_score": 0.7363951802253723, "answer_score": 0.5954921901226043, "sibling_qid": "KOL-2023-10-2681-Q001", "sibling_text": "boiler air fuel ratio controller what increases first air or fuel", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Air-fuel ratio control — and what increases first, air or fuel", "cross_family": false }, { "answer_id": "AFR-BF68-002", "score": 0.7343577742576599, "sibling_score": 0.7343577742576599, "answer_score": 0.6129100501537322, "sibling_qid": "MUM-2026-05-3130-Q007", "sibling_text": "how air fuel ratio is adjusted in boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Adjusting the air-fuel ratio on a boiler", "cross_family": false }, { "answer_id": "ACC-603-001", "score": 0.6783723831176758, "sibling_score": 0.6783723831176758, "answer_score": null, "sibling_qid": "MUM-2026-07-3799-Q004", "sibling_text": "boiler auto combustion control operation which parameters control", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "The automatic combustion control system — how it works, the start sequence, and the emergency arrangement", "cross_family": false } ] }, { "qid": "KOL-2022-07-3553-Q004", "text": "Rudder carrier bearing worn out – How to repair? How to replace bearing?", "family": "Steering Gear & Hydraulics", "subtopic": "Tiller / Rudder Stock", "tid": "KOL-2022-07-3553", "tray": "review", "candidates": [ { "answer_id": "PRE-TEN-001", "score": 0.7672463059425354, "sibling_score": 0.7672463059425354, "answer_score": null, "sibling_qid": "MUM-2026-09-3907-Q001", "sibling_text": "rudder carrier bearing replacement in port", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Pre-stressing and pre-tensioning in main-engine bolting", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.7316949963569641, "sibling_score": 0.7316949963569641, "answer_score": 0.4739914298057556, "sibling_qid": "MUM-2026-06-3610-Q003", "sibling_text": "removal of rudder bearing", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "TRS-002", "score": 0.7091432213783264, "sibling_score": 0.7091432213783264, "answer_score": null, "sibling_qid": "KOC-2026-02-1103-Q008", "sibling_text": "how rudder stock and carrier bearing is attached told 2 half fitted bolts x does bearing turn with rudder i told yes then he told that there are 2 types one turn with rudder other dont turn with rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false } ] }, { "qid": "KOL-2022-07-3553-Q008", "text": "Routine checks on Holding down bolts – Why HDB are longer than conventional bolts? Purpose of sleeve between bolt and bed plate.", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Holding Down Bolts", "tid": "KOL-2022-07-3553", "tray": "review", "candidates": [ { "answer_id": "CHK-RM-004", "score": 0.6853550672531128, "sibling_score": 0.6853550672531128, "answer_score": null, "sibling_qid": "KOL-2024-12-4043-Q006", "sibling_text": "end chock why longer bolts uses", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Function of side chocks and end chocks; why do end chocks have longer bolts; and what is meant by lateral movement of the main engine?", "cross_family": false }, { "answer_id": "FB-COUP-001", "score": 0.6406770944595337, "sibling_score": 0.6406770944595337, "answer_score": null, "sibling_qid": "MUM-2026-06-3618-Q009", "sibling_text": "fitted bolts why used", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What fitted bolts are, what they do, and where they sit onboard", "cross_family": false }, { "answer_id": "TBR-TT-P02-002", "score": 0.6364837288856506, "sibling_score": 0.6364837288856506, "answer_score": null, "sibling_qid": "MUM-2026-02-2549-Q006", "sibling_text": "holding down bolts tightness check", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Checking tie rod tightness / slackness — stopped and running", "cross_family": false } ] }, { "qid": "KOL-2022-07-3554-Q006", "text": "Boiler survey frequency, boiler survey complete, safety valve setting procedure.", "family": "Boilers - Mountings & Safety Devices", "subtopic": "Safety Valve", "tid": "KOL-2022-07-3554", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P01-001", "score": 0.8033936023712158, "sibling_score": 0.8033936023712158, "answer_score": 0.562166965007782, "sibling_qid": "MUM-2026-03-2935-Q013", "sibling_text": "boiler safety valve setting in presence of surveyor after survey", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": true }, { "answer_id": "BLR-SURV-P02-001", "score": 0.746545672416687, "sibling_score": 0.746545672416687, "answer_score": null, "sibling_qid": "KOL-2021-08-1614-Q006", "sibling_text": "boiler survey interval types of safety valves improved high lift safety valve in detail", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": true }, { "answer_id": "BWTEST-A-001", "score": 0.7416085004806519, "sibling_score": 0.7416085004806519, "answer_score": null, "sibling_qid": "KOC-2026-05-0003-Q005", "sibling_text": "boiler safety valve setting procedure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": true } ] }, { "qid": "KOL-2022-07-3556-Q002", "text": "Holding down bolts found loose for unit 3, 4,5 what is d reason what will be ur action as a 2nd engr, how to check tie bolt tightness", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Holding Down Bolts", "tid": "KOL-2022-07-3556", "tray": "review", "candidates": [ { "answer_id": "TBR-TT-P02-002", "score": 0.7140963673591614, "sibling_score": 0.7140963673591614, "answer_score": null, "sibling_qid": "MUM-2026-02-2549-Q006", "sibling_text": "holding down bolts tightness check", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Checking tie rod tightness / slackness — stopped and running", "cross_family": false }, { "answer_id": "TBR-TT-P02-001", "score": 0.6958116888999939, "sibling_score": 0.6958116888999939, "answer_score": null, "sibling_qid": "CHE-2026-05-0641-Q012", "sibling_text": "holding down bolts checks and tightening", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Tie rod tightening / hydraulic tensioning procedure", "cross_family": false }, { "answer_id": "PRE-TEN-004", "score": 0.6249726414680481, "sibling_score": 0.6249726414680481, "answer_score": null, "sibling_qid": "KOL-2026-04-3946-Q003", "sibling_text": "how you will check the hydraulic bolts and nut tightness", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Tightening cylinder-head hydraulic bolts or nuts without a torque wrench", "cross_family": false } ] }, { "qid": "KOL-2022-07-3556-Q003", "text": "Boiler Safety valve setting", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2022-07-3556", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-001", "score": 0.8651015162467957, "sibling_score": 0.8651015162467957, "answer_score": null, "sibling_qid": "CHE-2026-04-0500-Q005", "sibling_text": "boiler safety valve setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.8232761025428772, "sibling_score": 0.8232761025428772, "answer_score": null, "sibling_qid": "MUM-2026-03-2935-Q013", "sibling_text": "boiler safety valve setting in presence of surveyor after survey", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.8125715255737305, "sibling_score": 0.8125715255737305, "answer_score": null, "sibling_qid": "KOC-2026-05-0034-Q010", "sibling_text": "boiler safety valve types and how safety valve is set complete procedures", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOL-2022-07-4010-Q003", "text": "Damage stability criteria", "family": "SOLAS", "subtopic": "Damage Stability", "tid": "KOL-2022-07-4010", "tray": "review", "candidates": [ { "answer_id": "DAM-STAB-P03-002", "score": 0.8111016154289246, "sibling_score": 0.8111016154289246, "answer_score": null, "sibling_qid": "KOC-2024-12-0485-Q011", "sibling_text": "damage stability criteria", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "General cargo-ship damage stability criteria and requirements", "cross_family": false }, { "answer_id": "DS-049-P02-001", "score": 0.8077782988548279, "sibling_score": 0.8077782988548279, "answer_score": 0.49811922311782836, "sibling_qid": "KOC-2024-09-0405-Q008", "sibling_text": "damage stability intact stability criteria", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Difference between intact stability (static / dynamic) and damage stability criteria", "cross_family": false }, { "answer_id": "DAM-STAB-P03-001", "score": 0.7933275103569031, "sibling_score": 0.7933275103569031, "answer_score": 0.5032405376434326, "sibling_qid": "KOL-2018-05-0175-Q001", "sibling_text": "intact stability damage stability criteria", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Intact, static, dynamic and damage stability: difference and criteria", "cross_family": false } ] }, { "qid": "KOL-2022-07-4010-Q004", "text": "quarterly maintenance of free fall life boat", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Lifeboat", "tid": "KOL-2022-07-4010", "tray": "review", "candidates": [ { "answer_id": "LB-SURV-C-004", "score": 0.7813951373100281, "sibling_score": 0.7813951373100281, "answer_score": 0.5791520535945892, "sibling_qid": "MUM-2025-01-0235-Q004", "sibling_text": "which type of lifeboat free fall lifeboat yearly maintenance", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Free-fall lifeboat — maintenance, operational test and simulated / free-fall launch", "cross_family": false }, { "answer_id": "LB-SURV-C-003", "score": 0.766704261302948, "sibling_score": 0.766704261302948, "answer_score": 0.5547639489173889, "sibling_qid": "KOL-2020-03-0401-Q001", "sibling_text": "monthly inspection on a free fall lifeboat", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Routine maintenance ladder — weekly / monthly / quarterly / 6-monthly onboard checks", "cross_family": false }, { "answer_id": "DRG-B-006", "score": 0.7280585169792175, "sibling_score": 0.7280585169792175, "answer_score": null, "sibling_qid": "KOL-2021-12-0583-Q005", "sibling_text": "lifeboat yearly maintenance as 2e lowering and davit and fall maintenance", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Falls — maintenance, end-for-ending and renewal", "cross_family": false } ] }, { "qid": "KOL-2022-07-4010-Q007", "text": "Difference between free fall life boat and normal enclosed life boat", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Lifeboat", "tid": "KOL-2022-07-4010", "tray": "review", "candidates": [ { "answer_id": "LSA-LB-A-002", "score": 0.7384389042854309, "sibling_score": 0.7384389042854309, "answer_score": 0.5593293786048888, "sibling_qid": "CHE-2026-05-0644-Q001", "sibling_text": "type of lifeboat don t say fully enclosed answer is either davit launched or free fall", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Types of lifeboat — and which type on your ship", "cross_family": false }, { "answer_id": "LB-D-003", "score": 0.7332881093025208, "sibling_score": 0.7332881093025208, "answer_score": 0.5651952505111694, "sibling_qid": "KOC-2022-04-0072-Q022", "sibling_text": "life boat type freefall", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Free-fall lifeboat — why this type, why at the stern, stowage", "cross_family": false }, { "answer_id": "DRG-583-A-001", "score": 0.6880819201469421, "sibling_score": 0.6880819201469421, "answer_score": 0.5225597143173217, "sibling_qid": "KOL-2023-05-2653-Q003", "sibling_text": "different method for release of life lifeboat", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "On-load and off-load release: what each one is, and why both are fitted", "cross_family": false } ] }, { "qid": "KOL-2022-08-0665-Q001", "text": "Main supporting member of stern frame", "family": "Ship Construction & Stability", "subtopic": "Stern Frame / Transom", "tid": "KOL-2022-08-0665", "tray": "review", "candidates": [ { "answer_id": "SPR-STERN-009", "score": 0.6616069078445435, "sibling_score": 0.6616069078445435, "answer_score": 0.5362525582313538, "sibling_qid": "KOL-2025-09-1070-Q009", "sibling_text": "load carrying components in the stern frame", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Stern frame, stern tube support, lubrication & construction", "cross_family": true }, { "answer_id": "DUS-P5-03", "score": 0.6373672485351562, "sibling_score": 0.6373672485351562, "answer_score": 0.48933490514755246, "sibling_qid": "KOC-2021-10-0031-Q004", "sibling_text": "stern frame construction", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Stern frame construction, cross-section and rudder-axis sketch", "cross_family": true }, { "answer_id": "SPR-STERN-002", "score": 0.6349273920059204, "sibling_score": 0.6349273920059204, "answer_score": null, "sibling_qid": "KOC-2022-08-0083-Q001", "sibling_text": "draw stern frame show arrangement how stern tube is supported on fwd area of stern frame", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Propeller draw & dry-dock blade repair", "cross_family": true } ] }, { "qid": "KOL-2022-08-0666-Q002", "text": "New amendment in annex 6", "family": "Risk & Safety Management", "subtopic": "Enclosed Space Entry", "tid": "KOL-2022-08-0666", "tray": "review", "candidates": [ { "answer_id": "AVIAMD-001", "score": 0.6758269667625427, "sibling_score": 0.6758269667625427, "answer_score": null, "sibling_qid": "KOL-2019-12-0359-Q003", "sibling_text": "new amendments wrt annex 6", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What are the latest amendments to MARPOL Annex VI, and when did they enter into force?", "cross_family": true }, { "answer_id": "AV6-P01-01", "score": 0.6492857933044434, "sibling_score": 0.6492857933044434, "answer_score": null, "sibling_qid": "KOL-2025-09-1071-Q007", "sibling_text": "latest amendment for annex 6", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Explain the latest Annex VI amendment or MEPC development, and state its date and status.", "cross_family": true }, { "answer_id": "A6-NSEC-001", "score": 0.6423214673995972, "sibling_score": 0.6423214673995972, "answer_score": null, "sibling_qid": "KOL-2018-11-0233-Q001", "sibling_text": "latest amendments in annex 6", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Annex VI — documents, certificates & latest amendments", "cross_family": true } ] }, { "qid": "KOL-2022-08-0670-Q006", "text": "What is classification society? And Class certificates.", "family": "Surveys - Statutory", "subtopic": "Condition of Class", "tid": "KOL-2022-08-0670", "tray": "review", "candidates": [ { "answer_id": "CERT-LIST-P01-001", "score": 0.7330169677734375, "sibling_score": 0.7330169677734375, "answer_score": null, "sibling_qid": "KOL-2023-05-2653-Q004", "sibling_text": "classsifiation sociaty certificate", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "List the statutory certificates carried onboard a ship.", "cross_family": false }, { "answer_id": "IACS-324-005", "score": 0.7318176627159119, "sibling_score": 0.7318176627159119, "answer_score": 0.5346880048513413, "sibling_qid": "KOL-2021-12-0583-Q006", "sibling_text": "statutory certificate definition ro classification society difference", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "5. What is the difference between a classification society, a Recognized Organization, and statutory certification?", "cross_family": false }, { "answer_id": "IACS-324-002", "score": 0.6613031029701233, "sibling_score": 0.6613031029701233, "answer_score": null, "sibling_qid": "CHE-2025-10-0076-Q006", "sibling_text": "what is classification society it s functions", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "2. What is a classification society, why does a ship need class, and what are its functions?", "cross_family": false } ] }, { "qid": "KOL-2022-08-0671-Q001", "text": "intact and damage stability", "family": "SOLAS", "subtopic": "Damage Stability", "tid": "KOL-2022-08-0671", "tray": "review", "candidates": [ { "answer_id": "DS-049-P02-001", "score": 0.8286540508270264, "sibling_score": 0.8286540508270264, "answer_score": 0.4742407977581024, "sibling_qid": "KOC-2022-08-0082-Q009", "sibling_text": "intact and damage stability", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Difference between intact stability (static / dynamic) and damage stability criteria", "cross_family": false }, { "answer_id": "DAM-STAB-P03-001", "score": 0.8286540508270264, "sibling_score": 0.8286540508270264, "answer_score": 0.4932887703180313, "sibling_qid": "KOC-2025-10-0674-Q007", "sibling_text": "intact and damage stability", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Intact, static, dynamic and damage stability: difference and criteria", "cross_family": false }, { "answer_id": "DS-BASIC-P01-001", "score": 0.5216651409864426, "sibling_score": null, "answer_score": 0.5216651409864426, "sibling_qid": "", "sibling_text": "damage stability definition meaning and oral overview", "sibling_family": "", "via": "answer_title", "answer_title": "Damage stability: definition, meaning and oral overview", "cross_family": false } ] }, { "qid": "KOL-2022-08-0671-Q003", "text": "solid ballast with loading discharging", "family": "", "subtopic": "GM / KM / KB / Metacentric", "tid": "KOL-2022-08-0671", "tray": "new", "candidates": [ { "answer_id": "CPS-316-002", "score": 0.5480563640594482, "sibling_score": 0.5480563640594482, "answer_score": null, "sibling_qid": "MUM-2025-08-0386-Q014", "sibling_text": "loading and discharging preparation as 2e", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "2/E checks and preparation before cargo discharge / cargo operations", "cross_family": false }, { "answer_id": "COT-14", "score": 0.5436342358589172, "sibling_score": 0.5436342358589172, "answer_score": null, "sibling_qid": "KOL-2026-07-4253-Q003", "sibling_text": "segregated ballast and and capacity", "sibling_family": "Ship Construction", "via": "sibling", "answer_title": "SBT applicability, capacity and draught criteria", "cross_family": false }, { "answer_id": "COT-13", "score": 0.543305516242981, "sibling_score": 0.543305516242981, "answer_score": null, "sibling_qid": "KOL-2025-08-1026-Q002", "sibling_text": "open ballast", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Segregated, clean, dedicated and open ballast", "cross_family": false } ] }, { "qid": "KOL-2022-08-0674-Q005", "text": "What is radius of gyration? Where it's incorporated in ship ?", "family": "SOLAS", "subtopic": "Static / Dynamic Stability", "tid": "KOL-2022-08-0674", "tray": "new", "candidates": [ { "answer_id": "BK-002", "score": 0.6277369260787964, "sibling_score": 0.6277369260787964, "answer_score": 0.4689997136592865, "sibling_qid": "KOC-2024-09-0402-Q005", "sibling_text": "bilge keel radius of gyration", "sibling_family": "", "via": "sibling", "answer_title": "How does a bilge keel reduce rolling, and how does it relate to roll period and radius of gyration?", "cross_family": false }, { "answer_id": "KGF-A-001", "score": 0.5690101385116577, "sibling_score": 0.5690101385116577, "answer_score": null, "sibling_qid": "KOC-2023-05-0186-Q005", "sibling_text": "bilge radius", "sibling_family": "", "via": "sibling", "answer_title": "Construction terminology & structural member identification", "cross_family": false }, { "answer_id": "SHELL-PLT-B-001", "score": 0.5629986524581909, "sibling_score": 0.5629986524581909, "answer_score": null, "sibling_qid": "KOC-2026-01-2087-Q005", "sibling_text": "draw c s of the midship section of the tanker mark all the important members a shear strake why the need for such a strake b camber purpose c bilge keel and limit on protrusion didn t agree the limit is 400mm said there s something else a lot of discussion on that d formula for roll period and radius of gyration and explain with bilge keel", "sibling_family": "", "via": "sibling", "answer_title": "Sheer strake — location, why strengthened, deck-edge / gunwale connection", "cross_family": false } ] }, { "qid": "KOL-2022-08-1703-Q001", "text": "why turning moment reduce while moving astern", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2022-08-1703", "tray": "review", "candidates": [ { "answer_id": "SPR-STERN-001", "score": 0.652105450630188, "sibling_score": 0.652105450630188, "answer_score": null, "sibling_qid": "KOL-2026-02-2041-Q002", "sibling_text": "why ahead turning moment more than astern", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Propeller design factors, efficiency, handedness & material", "cross_family": true }, { "answer_id": "STEER-055-A-004", "score": 0.5406312942504883, "sibling_score": 0.5406312942504883, "answer_score": null, "sibling_qid": "KOL-2019-02-3212-Q005", "sibling_text": "rudder is taking more to come from one side to the other reasons and maintenance", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Hydraulic faults — air, sluggish response, locking, leakage", "cross_family": false }, { "answer_id": "REV-PROC-008", "score": 0.5072630643844604, "sibling_score": 0.5072630643844604, "answer_score": null, "sibling_qid": "KOL-2021-07-3992-Q005", "sibling_text": "m e not turning in astern direction what is the main reason how to overcome it any other reasons", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Engine, unit, fuel pump or cam fails to reverse — causes and action", "cross_family": true } ] }, { "qid": "KOL-2022-08-1705-Q004", "text": "Diff b/w full lift and improve high lift safety valve.", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2022-08-1705", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.7219368815422058, "sibling_score": 0.7219368815422058, "answer_score": null, "sibling_qid": "KOL-2026-02-3922-Q002", "sibling_text": "diff between highlift and improved highlift safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACRV-005", "score": 0.6784594655036926, "sibling_score": 0.6784594655036926, "answer_score": null, "sibling_qid": "MUM-2026-06-3429-Q010", "sibling_text": "safety valve lift difference", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": false }, { "answer_id": "ACSS-002", "score": 0.45286608338356016, "sibling_score": null, "answer_score": 0.45286608338356016, "sibling_qid": "", "sibling_text": "relief safety valves settings testing lifting reasons bursting disc set just above stage working pressure the class standard accumulation limit is about 10 though the exact set point is a maker sms value non isolable from its stage test to the maker s method easing gear or test rig for lifting pressure log and reset", "sibling_family": "", "via": "answer_title", "answer_title": "Relief / safety valves: settings, testing, lifting reasons; 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Identifying loll from the jetty — loll versus list and heel", "cross_family": false }, { "answer_id": "ROTSTAT-C-001", "score": 0.549534261226654, "sibling_score": 0.549534261226654, "answer_score": null, "sibling_qid": "KOL-2018-01-2170-Q005", "sibling_text": "why im rotor at angle", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Rotor skewing, cogging, crawling & harmonics", "cross_family": true }, { "answer_id": "ANG-ENC-001", "score": 0.5454482436180115, "sibling_score": 0.5454482436180115, "answer_score": null, "sibling_qid": "MUM-2023-11-1066-Q008", "sibling_text": "angle encoder function", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Purpose of the angle encoder on an electronically controlled main engine", "cross_family": true } ] }, { "qid": "KOL-2022-08-2596-Q002", "text": "Difference Between soft starter and star delta starter.", "family": "Electrical - Motors & Starters", "subtopic": "Star-Delta Starter", "tid": "KOL-2022-08-2596", "tray": "review", "candidates": [ { "answer_id": "SOFTSTART-P03-001", "score": 0.8266326785087585, "sibling_score": 0.8266326785087585, "answer_score": 0.6430261194705963, "sibling_qid": "KOL-2022-08-2599-Q008", "sibling_text": "soft starter difference between soft and stardelta starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Star-delta starter versus soft starter", "cross_family": false }, { "answer_id": "SOFTSTART-P02-003", "score": 0.5770760476589203, "sibling_score": null, "answer_score": 0.5770760476589203, "sibling_qid": "", "sibling_text": "types of starter and types of soft starter starter families dol full voltage star delta autotransformer korndorfer primary resistance reactor rotor resistance slip ring wound rotor motors only electronic soft starter vfd is a separate class running speed control not merely a softer start", "sibling_family": "", "via": "answer_title", "answer_title": "Types of starter, and types of soft starter", "cross_family": false }, { "answer_id": "SOFTSTART-P03-002", "score": 0.5583496898412704, "sibling_score": null, "answer_score": 0.5583496898412704, "sibling_qid": "", "sibling_text": "dol starter versus soft starter dol full line voltage through a single contactor full starting torque inrush 6 8x flc representative it is the motor s locked rotor current simplest cheapest smallest most reliable hard mechanical and electrical shock each start large volt dip on the board", "sibling_family": "", "via": "answer_title", "answer_title": "DOL starter versus soft starter", "cross_family": false } ] }, { "qid": "KOL-2022-08-3558-Q003", "text": "AE running at 50% load and exhaust temp of all units rising what are the reasons tell me fundamentals in step by step?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Decarb / Balancing / High Exhaust Temperature", "tid": "KOL-2022-08-3558", "tray": "review", "candidates": [ { "answer_id": "AE-HOT-BLOW-004", "score": 0.7467898726463318, "sibling_score": 0.7467898726463318, "answer_score": null, "sibling_qid": "MUM-2025-12-2879-Q006", "sibling_text": "rating of the ae running at low load but exhaust temp are high reason", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Auxiliary engine at low load but exhaust temperatures high — reasons", "cross_family": false }, { "answer_id": "AE-HOT-BLOW-005", "score": 0.7317686676979065, "sibling_score": 0.7317686676979065, "answer_score": null, "sibling_qid": "KOL-2018-03-1361-Q007", "sibling_text": "ae one unit exhaust temp rising all unit rising why how to confirm nozzle ring is chocked there is no tc rpm monitor", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Auxiliary engine units rising — one versus all, and confirming a choked turbocharger nozzle ring", "cross_family": false }, { "answer_id": "EXH-T-HI-001", "score": 0.7262321710586548, "sibling_score": 0.7262321710586548, "answer_score": 0.610112538933754, "sibling_qid": "MUM-2022-08-1017-Q006", "sibling_text": "all unit exhaust temperature rising ur action as 2 e n causes", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "All units exhaust temperature high — causes and actions", "cross_family": true } ] }, { "qid": "KOL-2022-08-3559-Q002", "text": "AE top end bearing removed how will you remove bottom end bearing", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Decarb Checks / Connecting Rod / Bottom End Bearing", "tid": "KOL-2022-08-3559", "tray": "review", "candidates": [ { "answer_id": "AE-MB-002", "score": 0.8100905418395996, "sibling_score": 0.8100905418395996, "answer_score": 0.6042246282100677, "sibling_qid": "KOL-2026-02-3912-Q002", "sibling_text": "ae main bearing bottom end removal", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Removing the lower shell / bottom half of an AE main bearing", "cross_family": false }, { "answer_id": "MAIN-BRG-B-001", "score": 0.7493810653686523, "sibling_score": 0.7493810653686523, "answer_score": null, "sibling_qid": "KOL-2026-05-0042-Q006", "sibling_text": "main bearing upper removed how will you remove bottom bearings", "sibling_family": "", "via": "sibling", "answer_title": "How do you open up / remove / overhaul a main-engine main bearing?", "cross_family": false }, { "answer_id": "BEB-A-001", "score": 0.7373970746994019, "sibling_score": 0.7373970746994019, "answer_score": 0.5743207395076751, "sibling_qid": "KOC-2026-10-2221-Q005", "sibling_text": "bottom end bearing removal procedure", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Removing, overhauling, inspecting and refitting the bottom end bearing", "cross_family": true } ] }, { "qid": "KOL-2022-08-3561-Q003", "text": "Rudder pintle purpose and cleareence", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2022-08-3561", "tray": "new", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.6429336667060852, "sibling_score": 0.6429336667060852, "answer_score": 0.40575362741947174, "sibling_qid": "KOL-2020-09-3346-Q009", "sibling_text": "clearances that you will measure for propellor and rudder in drydock how to check pintle clearance without removing rudder from place finally can breathe freely thanx everyone for all the help", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "TRS-002", "score": 0.6299475431442261, "sibling_score": 0.6299475431442261, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "RUD-DROP-003", "score": 0.5529347062110901, "sibling_score": 0.5529347062110901, "answer_score": null, "sibling_qid": "KOL-2026-01-4081-Q007", "sibling_text": "rudder clearance high before leaving drydock action clearance and overhaul", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Rudder drop at the limit: the decision", "cross_family": false } ] }, { "qid": "KOL-2022-08-3561-Q005", "text": "One more cant remember,wl post later", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOL-2022-08-3561", "tray": "new", "candidates": [ { "answer_id": "BWMS-C-002", "score": 0.6263042688369751, "sibling_score": 0.6263042688369751, "answer_score": null, "sibling_qid": "KOL-2022-05-0641-Q005", "sibling_text": "bwts one more question but forgot", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Types of BWTS and their working principles", "cross_family": true }, { "answer_id": "VIB-BAL-B-003", "score": 0.5774015784263611, "sibling_score": 0.5774015784263611, "answer_score": null, "sibling_qid": "KOL-2018-08-0204-Q006", "sibling_text": "not remember", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Torsional vibration: what it is, what causes it, how it is controlled", "cross_family": true }, { "answer_id": "CLVR-WEAR-001", "score": 0.5542764663696289, "sibling_score": 0.5542764663696289, "answer_score": null, "sibling_qid": "KOC-2026-03-1110-Q016", "sibling_text": "clover leafing some more questions i don t remember", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Cloverleaf wear — what it is, where, why, and how to reduce or rectify it", "cross_family": true } ] }, { "qid": "KOL-2022-09-0675-Q001", "text": "What is Deck line.", "family": "Load Line Convention", "subtopic": "Deck Line", "tid": "KOL-2022-09-0675", "tray": "review", "candidates": [ { "answer_id": "LLC-P05-001", "score": 0.657778263092041, "sibling_score": 0.657778263092041, "answer_score": 0.45128293633461, "sibling_qid": "KOL-2022-05-0638-Q006", "sibling_text": "deck line", "sibling_family": "", "via": "sibling", "answer_title": "Freeboard, deck line, Plimsoll mark, assignment and scantling draft", "cross_family": false }, { "answer_id": "MARGIN-LINE-003", "score": 0.6246093511581421, "sibling_score": 0.6246093511581421, "answer_score": 0.4407515227794647, "sibling_qid": "KOL-2020-07-0416-Q005", "sibling_text": "margin line deck line where drawn", "sibling_family": "", "via": "sibling", "answer_title": "Margin line vs deck line, freeboard and the Plimsoll marks", "cross_family": false }, { "answer_id": "MR-DS-PV-B-006", "score": 0.5105559229850769, "sibling_score": 0.5105559229850769, "answer_score": null, "sibling_qid": "KOC-2023-10-0238-Q002", "sibling_text": "ig deck line pressure", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "6. Deck isolating valve, deck relief/safety devices, and cargo-tank pressure", "cross_family": true } ] }, { "qid": "KOL-2022-09-0675-Q004", "text": "Location and purpose of Bulbous Bow", "family": "", "subtopic": "Bulbous Bow", "tid": "KOL-2022-09-0675", "tray": "new", "candidates": [ { "answer_id": "PPS-230-006", "score": 0.4988386332988739, "sibling_score": 0.4988386332988739, "answer_score": 0.3162068471312523, "sibling_qid": "MUM-2026-02-0782-Q011", "sibling_text": "bulbous bow how it is connected to ship shape of bow", "sibling_family": "", "via": "sibling", "answer_title": "Fore-end / fore-peak structure: draw and describe", "cross_family": false }, { "answer_id": "BSBH-420-002", "score": 0.40945984721183776, "sibling_score": 0.4028836786746979, "answer_score": 0.40945984721183776, "sibling_qid": "KOC-2026-01-0781-Q005", "sibling_text": "cross section of forward of bulk head", "sibling_family": "SOLAS", "via": "answer_title", "answer_title": "Fore-end / forepeak construction forward of the collision bulkhead — members and cross-section", "cross_family": false }, { "answer_id": "FWFB-P02-005", "score": 0.40070182383060454, "sibling_score": null, "answer_score": 0.40070182383060454, "sibling_qid": "", "sibling_text": "other members breast hook bulb angle cross tie margin coffin shoe plates breast hook horizontal triangular plate bracket at the bow and aft tying the two sides across the centreline at the stem helps resist panting forward bulb angle bulb flat stiffener a flat bar with a rounded bulb on one edge for added stiffness without a separate flange shell deck and bulkhead stiffening", "sibling_family": "", "via": "answer_title", "answer_title": "Other members: breast hook, bulb angle, cross tie, margin / coffin / shoe plates", "cross_family": false } ] }, { "qid": "KOL-2022-09-0677-Q006", "text": "LRIT,in india who receive lrit signal", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "KOL-2022-09-0677", "tray": "new", "candidates": [ { "answer_id": "EPIRB-SART-001", "score": 0.36902183294296265, "sibling_score": 0.36902183294296265, "answer_score": null, "sibling_qid": "KOL-2017-09-0112-Q004", "sibling_text": "lrit vdr epirb sart mob marker", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What is the difference between EPIRB and SART? Give the function, construction, use and operation of each.", "cross_family": true }, { "answer_id": "EPIRB-003", "score": 0.36481305956840515, "sibling_score": 0.36481305956840515, "answer_score": 0.27445451021194456, "sibling_qid": "KOL-2021-01-0465-Q005", "sibling_text": "all about epirb signal received by", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What signal does the EPIRB send — frequency, how and where it is routed, who receives it, and how it is stored and activated?", "cross_family": true }, { "answer_id": "UNL-330-001", "score": 0.3437860906124115, "sibling_score": 0.3437860906124115, "answer_score": null, "sibling_qid": "MUM-2026-05-3273-Q008", "sibling_text": "gmdss", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "What is the function of the main air compressor unloader?", "cross_family": false } ] }, { "qid": "KOL-2022-09-0679-Q004", "text": "Lrit and asi Masters responsibility", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "KOL-2022-09-0679", "tray": "new", "candidates": [ { "answer_id": "ISM-DPA-003", "score": 0.4153781831264496, "sibling_score": 0.4153781831264496, "answer_score": 0.3143408179283142, "sibling_qid": "KOL-2025-09-1081-Q006", "sibling_text": "ism full details masters responsibilities and role of dpa", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Master's responsibilities and the role of the DPA under the ISM Code", "cross_family": true }, { "answer_id": "ISM-DPA-002", "score": 0.3701266050338745, "sibling_score": 0.3701266050338745, "answer_score": null, "sibling_qid": "KOC-2023-03-0172-Q004", "sibling_text": "ism who is responsible for ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "DPA basis : which convention, which code, and who is responsible for ISM", "cross_family": true }, { "answer_id": "IACS-324-001", "score": 0.3682022988796234, "sibling_score": 0.3682022988796234, "answer_score": null, "sibling_qid": "KOC-2022-09-0101-Q001", "sibling_text": "iacs roles and responsibilities", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "1. What is IACS and what are its functions?", "cross_family": true } ] }, { "qid": "KOL-2022-09-0681-Q005", "text": "What training is given to new joiner onboard ship?", "family": "ISM Code", "subtopic": "SMS / Functional Requirements", "tid": "KOL-2022-09-0681", "tray": "new", "candidates": [ { "answer_id": "ISM-AUD-P02-004", "score": 0.6142849326133728, "sibling_score": 0.6142849326133728, "answer_score": null, "sibling_qid": "KOC-2026-02-0799-Q015", "sibling_text": "when a junior join in ship what all u do familiarise him about means of escape alarm sounds especially co2 alarm sounds", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "SMS contents, manuals, documents and drill records onboard", "cross_family": false }, { "answer_id": "STCW-MAN-014", "score": 0.5843425989151001, "sibling_score": 0.5843425989151001, "answer_score": 0.5052921235561371, "sibling_qid": "KOC-2025-01-0506-Q008", "sibling_text": "as a second engineer give safety familiarisation to the new joiner on board internal", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "As Second Engineer, how do you give safety familiarisation to a new joiner on board?", "cross_family": true }, { "answer_id": "HUM-BACKFILL-062-FINAL-003", "score": 0.5819361805915833, "sibling_score": 0.5819361805915833, "answer_score": null, "sibling_qid": "KOL-2019-10-0328-Q004", "sibling_text": "a new 3 e join to your ship how you will find out he takes safety majors or not", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "A new 3/E joins your ship - how do you find out whether he takes safety measures or not?", "cross_family": false } ] }, { "qid": "KOL-2022-09-0682-Q001", "text": "how rudder is attached to ship structure. Name the ship structure. He was not satisfied with pintles,skeg,rudder horn", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2022-09-0682", "tray": "review", "candidates": [ { "answer_id": "TRS-002", "score": 0.7023982405662537, "sibling_score": 0.7023982405662537, "answer_score": 0.49934083223342896, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.6574880480766296, "sibling_score": 0.6574880480766296, "answer_score": null, "sibling_qid": "KOC-2026-04-0891-Q002", "sibling_text": "rudder after dock", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "STEER-055-A-003", "score": 0.6439804434776306, "sibling_score": 0.6439804434776306, "answer_score": null, "sibling_qid": "KOL-2023-08-1751-Q006", "sibling_text": "hunting gear mechanism hunting of rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Hunting gear, floating lever and buffer spring", "cross_family": false } ] }, { "qid": "KOL-2022-09-0683-Q001", "text": "How rudder is connected to ship. Name of the frame structure.(Plz share answers of this questions. What exactly he wants to listen?)", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2022-09-0683", "tray": "review", "candidates": [ { "answer_id": "TRS-002", "score": 0.7306302189826965, "sibling_score": 0.7306302189826965, "answer_score": 0.5469028294086457, "sibling_qid": "KOC-2026-05-0004-Q005", "sibling_text": "how rudder is connected to rudder carrier bearing", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "TLM-218-001", "score": 0.6917059421539307, "sibling_score": 0.6917059421539307, "answer_score": 0.5377575814723968, "sibling_qid": "KOL-2019-02-1440-Q002", "sibling_text": "rudder control from bridge to steering gear room", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Helm order from bridge to rudder — the full sequence", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.6886297464370728, "sibling_score": 0.6886297464370728, "answer_score": null, "sibling_qid": "MUM-2026-06-3584-Q005", "sibling_text": "what takes weight of rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false } ] }, { "qid": "KOL-2022-09-0684-Q001", "text": "Solid Ballast", "family": "", "subtopic": "GM / KM / KB / Metacentric", "tid": "KOL-2022-09-0684", "tray": "new", "candidates": [ { "answer_id": "BWM-D1D2-P03-001", "score": 0.5623709559440613, "sibling_score": 0.5623709559440613, "answer_score": null, "sibling_qid": "KOC-2022-09-0099-Q007", "sibling_text": "ballast d2 standard", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Regulation D-2 — ballast water performance / discharge standardHigh", "cross_family": false }, { "answer_id": "COT-14", "score": 0.554499626159668, "sibling_score": 0.554499626159668, "answer_score": null, "sibling_qid": "KOL-2026-07-4253-Q003", "sibling_text": "segregated ballast and and capacity", "sibling_family": "Ship Construction", "via": "sibling", "answer_title": "SBT applicability, capacity and draught criteria", "cross_family": false }, { "answer_id": "COT-13", "score": 0.5406193733215332, "sibling_score": 0.5406193733215332, "answer_score": null, "sibling_qid": "KOL-2025-08-1026-Q002", "sibling_text": "open ballast", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Segregated, clean, dedicated and open ballast", "cross_family": false } ] }, { "qid": "KOL-2022-09-1706-Q001", "text": "Material of crankshaft", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft Material", "tid": "KOL-2022-09-1706", "tray": "review", "candidates": [ { "answer_id": "CRANK-217-001", "score": 0.8332309126853943, "sibling_score": 0.8332309126853943, "answer_score": 0.5048279404640198, "sibling_qid": "MUM-2026-05-3266-Q006", "sibling_text": "material of crankshaft", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankshaft types and how the type is identified", "cross_family": false }, { "answer_id": "HT-A-001", "score": 0.7848336100578308, "sibling_score": 0.7848336100578308, "answer_score": null, "sibling_qid": "MUM-2026-05-3334-Q006", "sibling_text": "crankshaft material and heat treatment", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Heat treatment: what it is, the main methods, and why it is done", "cross_family": false }, { "answer_id": "PIST-CSI-A-003", "score": 0.6604704856872559, "sibling_score": 0.6604704856872559, "answer_score": 0.5365470170974731, "sibling_qid": "CHE-2025-08-0210-Q006", "sibling_text": "what is material of your piston piston rings and crankshaft", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston materials: crown, skirt, rod, rings and coatings", "cross_family": true } ] }, { "qid": "KOL-2022-09-1706-Q002", "text": "Hot work in crankshaft", "family": "Workshop & Welding", "subtopic": "Hot Work", "tid": "KOL-2022-09-1706", "tray": "review", "candidates": [ { "answer_id": "HT-A-001", "score": 0.7113314867019653, "sibling_score": 0.7113314867019653, "answer_score": null, "sibling_qid": "MUM-2026-05-3130-Q003", "sibling_text": "heat treatment performed on crankshaft", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Heat treatment: what it is, the main methods, and why it is done", "cross_family": true }, { "answer_id": "HEAT-TRT-C-001", "score": 0.6246654987335205, "sibling_score": 0.6246654987335205, "answer_score": null, "sibling_qid": "KOL-2019-10-1486-Q003", "sibling_text": "crank shaft treatment before and after what temperature what will happen if we treat at 200 400 600 and infinite question both case case hardened and nitriding", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Nitriding — process, gas and where it is used on board", "cross_family": true }, { "answer_id": "HT-TCS-B-001", "score": 0.6213476657867432, "sibling_score": 0.6213476657867432, "answer_score": null, "sibling_qid": "KOL-2020-11-3366-Q004", "sibling_text": "tempering too much cross question whether all crankshaft is tempered or some part of crankshaft tempered", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Tempering — purpose, classes and where it is used on board", "cross_family": true } ] }, { "qid": "KOL-2022-09-1707-Q005", "text": "exhaust tuning why and how to do", "family": "2-Stroke - Exhaust, Valve & Starting Air", "subtopic": "Exhaust Valve & Exhaust System", "tid": "KOL-2022-09-1707", "tray": "new", "candidates": [ { "answer_id": "EXHV-P01-003", "score": 0.6250316500663757, "sibling_score": 0.6250316500663757, "answer_score": null, "sibling_qid": "KOL-2019-10-1489-Q002", "sibling_text": "detuning of exhaust valve", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Construction, seat geometry and overhaul checks", "cross_family": false }, { "answer_id": "CPP-SGX-04", "score": 0.5881386995315552, "sibling_score": 0.5881386995315552, "answer_score": 0.48912581503391267, "sibling_qid": "KOL-2021-08-1620-Q004", "sibling_text": "tuned exhaust system in engine i dont know anything about this but something related to scavanging and exhausting", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Tuned exhaust system", "cross_family": true }, { "answer_id": "EXHV-080-BF37-001", "score": 0.5867140889167786, "sibling_score": 0.5867140889167786, "answer_score": null, "sibling_qid": "KOL-2024-03-1945-Q003", "sibling_text": "variable exhaust closing what is it how is it advantageous", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "What is variable exhaust valve closing (VEC)? Components and advantages.", "cross_family": false } ] }, { "qid": "KOL-2022-09-1708-Q005", "text": "Axial flow pump", "family": "Pumps - Centrifugal & PD", "subtopic": "Axial Flow Pump", "tid": "KOL-2022-09-1708", "tray": "review", "candidates": [ { "answer_id": "HSAP-B-006", "score": 0.7595110535621643, "sibling_score": 0.7595110535621643, "answer_score": null, "sibling_qid": "KOL-2019-12-3299-Q003", "sibling_text": "axial pump n it s peculiarities", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Axial piston pump — defects, peculiarities, safeties and alarms", "cross_family": false }, { "answer_id": "HSAP-583-A-013", "score": 0.7533467411994934, "sibling_score": 0.7533467411994934, "answer_score": 0.5739066630601882, "sibling_qid": "KOL-2020-02-0390-Q012", "sibling_text": "why axial flow pumps are used", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "\"Why are axial flow pumps used?\"", "cross_family": false }, { "answer_id": "PCD-P05-02", "score": 0.7528899312019348, "sibling_score": 0.7528899312019348, "answer_score": null, "sibling_qid": "KOL-2021-04-1902-Q004", "sibling_text": "screw pump axial thrust", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Screw pump — construction, working, types, drive arrangement, clearances, why preferred over gear", "cross_family": false } ] }, { "qid": "KOL-2022-09-1708-Q007", "text": "2 Springs in valve Purpose.", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2022-09-1708", "tray": "new", "candidates": [ { "answer_id": "EXHV-297-008", "score": 0.5347987413406372, "sibling_score": 0.5347987413406372, "answer_score": null, "sibling_qid": "MUM-2026-05-3155-Q009", "sibling_text": "ae exhaust valves have concentric springs what is the purpose of it", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "2-stroke vs 4-stroke exhaust valve operation; the AE conical spring", "cross_family": true }, { "answer_id": "EXHV-P01-002", "score": 0.5135873556137085, "sibling_score": 0.5135873556137085, "answer_score": null, "sibling_qid": "CHE-2021-07-0183-Q006", "sibling_text": "spring air pressure hw much what happens with air when oil pressure is applied to open exhaust valve it should restrict it s opening hw it s prevented asked by internal", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Air spring and soft closing", "cross_family": true }, { "answer_id": "AUC-P03-02", "score": 0.4979439377784729, "sibling_score": 0.4979439377784729, "answer_score": 0.4567706525325775, "sibling_qid": "KOL-2022-09-4015-Q014", "sibling_text": "draw 3port2position solenoid operated spring return servo valve what is counter acting valve", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "3/2 pilot-operated spring-return valve, sequence and counter-balance valves", "cross_family": true } ] }, { "qid": "KOL-2022-09-1709-Q001", "text": "Types of engine on your ship", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOL-2022-09-1709", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.7597056031227112, "sibling_score": 0.7597056031227112, "answer_score": null, "sibling_qid": "MUM-2026-06-3616-Q001", "sibling_text": "types of ship engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.7286916375160217, "sibling_score": 0.7286916375160217, "answer_score": null, "sibling_qid": "MUM-2026-07-3668-Q004", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "AC-VE-001", "score": 0.7092116475105286, "sibling_score": 0.7092116475105286, "answer_score": null, "sibling_qid": "MUM-2026-01-2904-Q001", "sibling_text": "what type of ship engine power and nomenclature", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Volumetric efficiency: define it, and if it drops how do you improve it (with bumping clearance)?", "cross_family": false } ] }, { "qid": "KOL-2022-09-1712-Q001", "text": "Type of engine; type of fuel injection..", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOL-2022-09-1712", "tray": "review", "candidates": [ { "answer_id": "RTFLEX-319-004", "score": 0.7422972321510315, "sibling_score": 0.7422972321510315, "answer_score": null, "sibling_qid": "MUM-2026-06-3438-Q003", "sibling_text": "type of fuel injection system", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Common-rail fuel injection: control, timing, volume and FQS setting", "cross_family": true }, { "answer_id": "FIS-221-002", "score": 0.7371517419815063, "sibling_score": 0.7371517419815063, "answer_score": 0.5549635142087936, "sibling_qid": "CHE-2026-05-0636-Q002", "sibling_text": "in me b engines what type of fuel injection", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How fuel injection takes place in an ME / ME-C / ME-B engine", "cross_family": true }, { "answer_id": "FIS-221-004", "score": 0.7166897058486938, "sibling_score": 0.7166897058486938, "answer_score": 0.5415551483631134, "sibling_qid": "CHE-2026-04-0263-Q008", "sibling_text": "conventional engine fuel inj vs", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Conventional versus ME / electronically controlled injection", "cross_family": true } ] }, { "qid": "KOL-2022-09-1712-Q005", "text": "Reverse osmosis? RO plant working?", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "KOL-2022-09-1712", "tray": "new", "candidates": [ { "answer_id": "FWG-RO-006", "score": 0.5695277452468872, "sibling_score": 0.5695277452468872, "answer_score": 0.5270316183567046, "sibling_qid": "MUM-2023-06-2736-Q001S4", "sibling_text": "reverse osmosis principle and flow chart explanation", "sibling_family": "Fresh Water & Domestic Systems", "via": "sibling", "answer_title": "Explain reverse osmosis — the principle and flow, pre- and post-treatment, and what chemical is dosed before the RO.", "cross_family": true }, { "answer_id": "RVSG-213-001", "score": 0.5612339973449707, "sibling_score": 0.5612339973449707, "answer_score": null, "sibling_qid": "KOL-2022-10-1713-Q005", "sibling_text": "rotary vane system and vane material rao difference bw osmosis n reverse osmosis", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Construction, main parts, materials & vane fitment", "cross_family": true }, { "answer_id": "JCW-SYS-004", "score": 0.4782950282096863, "sibling_score": 0.4782950282096863, "answer_score": 0.3721273571252823, "sibling_qid": "KOC-2022-05-1786-Q007", "sibling_text": "why jacket water treatment is done what all chemicals used in rocor nb what is n and b purpose of both", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Why jacket water is treated - chemicals used, what Rocor NB stands for, the nitrite level maintained, and removing scale", "cross_family": false } ] }, { "qid": "KOL-2022-09-2602-Q003", "text": "EX N circuit", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOL-2022-09-2602", "tray": "new", "candidates": [ { "answer_id": "EXD-EXI-A-002", "score": 0.6320555210113525, "sibling_score": 0.6320555210113525, "answer_score": null, "sibling_qid": "MUM-2022-07-1337-Q001", "sibling_text": "exi exd circuit and in detail", "sibling_family": "", "via": "sibling", "answer_title": "Ex d (flameproof / explosion-proof) — construction, shipboard applications and maintenance", "cross_family": false }, { "answer_id": "EEXI-001", "score": 0.530597448348999, "sibling_score": 0.530597448348999, "answer_score": null, "sibling_qid": "KOL-2022-09-4012-Q007", "sibling_text": "eexi intrinsic safe circuit cross qsns", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is EEXI? 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Generator & Alternator", "via": "sibling", "answer_title": "Why is the alternator star connected and the motor delta connected?", "cross_family": true }, { "answer_id": "CABLE-INS-E-003", "score": 0.5835567712783813, "sibling_score": 0.5835567712783813, "answer_score": null, "sibling_qid": "KOL-2018-07-2209-Q002", "sibling_text": "wiring arrangement from alternator to switchboard", "sibling_family": "", "via": "sibling", "answer_title": "Cable / conductor arrangement: alternator to MSB", "cross_family": false } ] }, { "qid": "KOL-2022-09-2604-Q003", "text": "Rpm detector all types", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Encoders", "tid": "KOL-2022-09-2604", "tray": "new", "candidates": [ { "answer_id": "FSH-DET-001", "score": 0.4472450613975525, "sibling_score": 0.4472450613975525, "answer_score": 0.28386138677597045, "sibling_qid": "KOC-2022-09-0090-Q001", "sibling_text": "different types of detectors", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Types of fire, smoke, heat and flame detectors used onboard", "cross_family": true }, { "answer_id": "SCR-306-A-006", "score": 0.4323940873146057, "sibling_score": 0.4323940873146057, "answer_score": null, "sibling_qid": "MUM-2024-06-2230-Q005", "sibling_text": "scr and types", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Types of thyristor / SCR", "cross_family": false }, { "answer_id": "PURIF-172-001", "score": 0.430027574300766, "sibling_score": 0.430027574300766, "answer_score": null, "sibling_qid": "MUM-2026-06-3483-Q009", "sibling_text": "purifier not picking up rpm reasons", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Purifier not picking up speed — drive, clutch, brake, shear pin", "cross_family": true } ] }, { "qid": "KOL-2022-09-2605-Q001", "text": "what is IEEC and IEC in HV 2 What is EC or CE in HV", "family": "Electrical - Distribution & MSB", "subtopic": "High Voltage System / Earthing / Shore Supply", "tid": "KOL-2022-09-2605", "tray": "new", "candidates": [ { "answer_id": "IEEC-002", "score": 0.544238805770874, "sibling_score": 0.544238805770874, "answer_score": null, "sibling_qid": "KOL-2018-06-0184-Q003", "sibling_text": "ieec", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "IEEC validity and the conditions under which it changes", "cross_family": true }, { "answer_id": "IEEC-001", "score": 0.5432248115539551, "sibling_score": 0.5432248115539551, "answer_score": null, "sibling_qid": "MUM-2022-11-2715-Q003", "sibling_text": "ieec", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Basis, requirement and prerequisites for issuing an IEEC", "cross_family": true }, { "answer_id": "CBL-INS-A-001", "score": 0.5251629948616028, "sibling_score": 0.5251629948616028, "answer_score": null, "sibling_qid": "KOC-2023-04-1251-Q006", "sibling_text": "iec for high voltage", "sibling_family": "", "via": "sibling", "answer_title": "IEC / marine cable standards used for shipboard cables", "cross_family": false } ] }, { "qid": "KOL-2022-09-2610-Q002", "text": "Alternator stator construction", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator / Generator", "tid": "KOL-2022-09-2610", "tray": "review", "candidates": [ { "answer_id": "ROTSTAT-C-003", "score": 0.7945467829704285, "sibling_score": 0.7945467829704285, "answer_score": 0.5622723460197449, "sibling_qid": "KOL-2026-01-2951-Q001", "sibling_text": "alternator stator construction", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Stator construction, winding & types", "cross_family": false }, { "answer_id": "ALT-GEN-P03-005", "score": 0.6991490125656128, "sibling_score": 0.6991490125656128, "answer_score": 0.5337708353996277, "sibling_qid": "KOC-2023-02-1231-Q004", "sibling_text": "alternator construction", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Alternator construction, parts, and direct connection", "cross_family": false }, { "answer_id": "BRUSHALT-A-001", "score": 0.6670638918876648, "sibling_score": 0.6670638918876648, "answer_score": null, "sibling_qid": "MUM-2026-06-3522-Q007", "sibling_text": "brushless alternators construction", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01 · Working principle of the brushless alternator / brushless excitation systemHigh", "cross_family": false } ] }, { "qid": "KOL-2022-09-2610-Q003", "text": "Vaccum diode, how it acts as On-off switch", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Zener / Diode / Rectifier", "tid": "KOL-2022-09-2610", "tray": "new", "candidates": [ { "answer_id": "DIODESO-001", "score": 0.5661251544952393, "sibling_score": 0.5661251544952393, "answer_score": null, "sibling_qid": "MUM-2026-05-3003-Q003S2", "sibling_text": "diodes open while running", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Two alternators in parallel — one rotating rectifier diode goes short circuit. What happens, what if it goes open instead, and how do you know which it is?", "cross_family": true }, { "answer_id": "EPC-P02-01", "score": 0.544683039188385, "sibling_score": 0.544683039188385, "answer_score": null, "sibling_qid": "MUM-2025-08-1571-Q002", "sibling_text": "voltage diode", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a zener diode? Draw its symbol, explain its working principle, and draw and explain its characteristic curve including the zener (breakdown) voltage.", "cross_family": false }, { "answer_id": "EPC-P01-02", "score": 0.5362980365753174, "sibling_score": 0.5362980365753174, "answer_score": 0.3858313217759132, "sibling_qid": "MUM-2025-12-1793-Q003", "sibling_text": "diode and use onboard", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Types of diodes, and where diodes are used on board", "cross_family": false } ] }, { "qid": "KOL-2022-09-3563-Q002", "text": "Welding Precautions, welding in ER and deck on tankers ?", "family": "Workshop & Welding", "subtopic": "Crack on Main Deck", "tid": "KOL-2022-09-3563", "tray": "review", "candidates": [ { "answer_id": "WBS-C-003", "score": 0.6795523762702942, "sibling_score": 0.6795523762702942, "answer_score": 0.5086872160434722, "sibling_qid": "MUM-2017-01-2126-Q001", "sibling_text": "procedure to weld something in settling tank when ship in drydock", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Shipboard hot work — the permit, the designated area, and work near fuel tanks", "cross_family": false }, { "answer_id": "WELD-PATM-010", "score": 0.6772350072860718, "sibling_score": 0.6772350072860718, "answer_score": null, "sibling_qid": "KOL-2019-07-3260-Q002", "sibling_text": "overhead welding precaution", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Vertical and overhead arc welding – technique and precautions", "cross_family": false }, { "answer_id": "WELD-B-007", "score": 0.6678954362869263, "sibling_score": 0.6678954362869263, "answer_score": null, "sibling_qid": "MUM-2026-05-3246-Q013", "sibling_text": "precautions for welding", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Overhead welding — precautions, checks and advantages", "cross_family": false } ] }, { "qid": "KOL-2022-09-3563-Q006", "text": "Fwg low vaccum reasons", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "KOL-2022-09-3563", "tray": "new", "candidates": [ { "answer_id": "FWG-RO-001", "score": 0.6351057291030884, "sibling_score": 0.6351057291030884, "answer_score": null, "sibling_qid": "MUM-2024-06-1081-Q006", "sibling_text": "fwg vaccum not coming", "sibling_family": "Fresh Water & Domestic Systems", "via": "sibling", "answer_title": "How is vacuum created in the FWG, why does it run under vacuum, and what if the vacuum will not come?", "cross_family": true }, { "answer_id": "VAC-COND-002", "score": 0.6202695369720459, "sibling_score": 0.6202695369720459, "answer_score": 0.5167051404714584, "sibling_qid": "MUM-2026-07-3769-Q011", "sibling_text": "vacuum condenser loosed suction reason", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Low vacuum, suction loss and failure to build vacuum — the reasons", "cross_family": false }, { "answer_id": "VAC-COND-001", "score": 0.5522798299789429, "sibling_score": 0.5522798299789429, "answer_score": null, "sibling_qid": "MUM-2025-09-2396-Q005", "sibling_text": "why vaccum condition", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Purpose, working and thermodynamic principle of the vacuum condenser", "cross_family": true } ] }, { "qid": "KOL-2022-09-3564-Q003", "text": "Check valve.name all Check valves in engine room.", "family": "Boilers - Construction & Components", "subtopic": "Feed Check Valve", "tid": "KOL-2022-09-3564", "tray": "new", "candidates": [ { "answer_id": "GV-330-002", "score": 0.6318936347961426, "sibling_score": 0.6318936347961426, "answer_score": null, "sibling_qid": "KOL-2018-04-3140-Q003", "sibling_text": "gate valve overhaul n checks", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Gate valve overhaul, checks & the stuck / not-operating valve", "cross_family": true }, { "answer_id": "SDNR-SDR-004", "score": 0.61993408203125, "sibling_score": 0.61993408203125, "answer_score": null, "sibling_qid": "KOL-2024-09-3711-Q003", "sibling_text": "spring loaded non return globe valve where use in engine room", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Spring-loaded spindleless non-return globe valve -- working principle and engine-room use", "cross_family": true }, { "answer_id": "BLR-SURV-P01-001", "score": 0.6190968751907349, "sibling_score": 0.6190968751907349, "answer_score": null, "sibling_qid": "MUM-2026-03-2589-Q003", "sibling_text": "checks on safety valve", "sibling_family": "Boilers - 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Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "KOL-2022-09-4015-Q013", "text": "Function of FQS", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Quality / CCAI", "tid": "KOL-2022-09-4015", "tray": "new", "candidates": [ { "answer_id": "QCV-001", "score": 0.5585640072822571, "sibling_score": 0.5585640072822571, "answer_score": null, "sibling_qid": "KOL-2022-09-3567-Q006", "sibling_text": "fqs system", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Quick closing valve — construction and what it is", "cross_family": true }, { "answer_id": "VIT-MECH-B-002", "score": 0.5500757098197937, "sibling_score": 0.5500757098197937, "answer_score": null, "sibling_qid": "CHE-2026-03-0254-Q002", "sibling_text": "vit explain fqs settings", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How VIT is adjusted and set — timing and fuel-quality (FQS) interactions", "cross_family": false }, { "answer_id": "CPP-ATC-02", "score": 0.5254446268081665, "sibling_score": 0.5254446268081665, "answer_score": 0.3379042148590088, "sibling_qid": "CHE-2026-05-0551-Q012", "sibling_text": "fqs adjustment", "sibling_family": "2-Stroke - 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ISM Code and certificates", "cross_family": false } ] }, { "qid": "KOL-2022-10-0689-Q009", "text": "roll period of ship formula and factors it depends on .", "family": "SOLAS", "subtopic": "Static / Dynamic Stability", "tid": "KOL-2022-10-0689", "tray": "review", "candidates": [ { "answer_id": "BK-002", "score": 0.6612690091133118, "sibling_score": 0.6612690091133118, "answer_score": 0.5128346681594849, "sibling_qid": "KOC-2025-08-0643-Q004", "sibling_text": "bilge keel amplitude of rolling period of roll", "sibling_family": "", "via": "sibling", "answer_title": "How does a bilge keel reduce rolling, and how does it relate to roll period and radius of gyration?", "cross_family": false }, { "answer_id": "STAB-D-001", "score": 0.5916057825088501, "sibling_score": 0.5916057825088501, "answer_score": null, "sibling_qid": "KOL-2023-02-0720-Q004", "sibling_text": "how ship rolls", "sibling_family": "", "via": "sibling", "answer_title": "General Ship Stability - How I Open Any Stability Question", "cross_family": false }, { "answer_id": "PAR-ROLL-001", "score": 0.5876930952072144, "sibling_score": 0.5876930952072144, "answer_score": 0.5084194064140319, "sibling_qid": "KOL-2021-12-0578-Q003", "sibling_text": "parametric rolling relation between rolling and pitching periods", "sibling_family": "", "via": "sibling", "answer_title": "01. What is parametric rolling?", "cross_family": false } ] }, { "qid": "KOL-2022-10-0689-Q014", "text": "external stake holders of ISM", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOL-2022-10-0689", "tray": "new", "candidates": [ { "answer_id": "ISM-DPA-002", "score": 0.492080420255661, "sibling_score": 0.492080420255661, "answer_score": null, "sibling_qid": "KOC-2023-03-0172-Q004", "sibling_text": "ism who is responsible for ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "DPA basis : which convention, which code, and who is responsible for ISM", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.47378483414649963, "sibling_score": 0.47378483414649963, "answer_score": null, "sibling_qid": "MUM-2025-09-0457-Q008", "sibling_text": "objectives of ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "ISM-AUD-P02-002", "score": 0.46780213713645935, "sibling_score": 0.46780213713645935, "answer_score": null, "sibling_qid": "KOC-2026-01-2087-Q013", "sibling_text": "what is the purpose of ism internal", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM Code — what it is, purpose, objectives and structure", "cross_family": false } ] }, { "qid": "KOL-2022-10-0689-Q022", "text": "Type of ship- oil tankers", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2022-10-0689", "tray": "review", "candidates": [ { "answer_id": "COT-01", "score": 0.8146571516990662, "sibling_score": 0.8146571516990662, "answer_score": 0.5973171055316925, "sibling_qid": "KOC-2026-04-0892-Q003", "sibling_text": "type of ship sailed tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Oil-tanker types, definitions and cargo capability", "cross_family": false }, { "answer_id": "IBC-BCH-B-004", "score": 0.7791315913200378, "sibling_score": 0.7791315913200378, "answer_score": null, "sibling_qid": "MUM-2026-05-3156-Q001", "sibling_text": "type of ships chemical tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Certificate of Fitness and MARPOL Annex II in practice", "cross_family": false }, { "answer_id": "BCH-IBC-A-001", "score": 0.7561697959899902, "sibling_score": 0.7561697959899902, "answer_score": 0.5456734180450439, "sibling_qid": "CHE-2026-03-0128-Q001", "sibling_text": "type of chemical tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type 1, Type 2 and Type 3 chemical tankers — the ship-type classification", "cross_family": false } ] }, { "qid": "KOL-2022-10-0689-Q024", "text": "Who are the External stakeholders in ISM", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOL-2022-10-0689", "tray": "new", "candidates": [ { "answer_id": "ISM-DPA-002", "score": 0.476159930229187, "sibling_score": 0.476159930229187, "answer_score": null, "sibling_qid": "KOC-2023-03-0172-Q004", "sibling_text": "ism who is responsible for ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "DPA basis : which convention, which code, and who is responsible for ISM", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.46032702922821045, "sibling_score": 0.46032702922821045, "answer_score": null, "sibling_qid": "MUM-2025-09-0457-Q008", "sibling_text": "objectives of ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "ISM-AUD-P02-002", "score": 0.46032506227493286, "sibling_score": 0.46032506227493286, "answer_score": null, "sibling_qid": "KOC-2026-01-2087-Q013", "sibling_text": "what is the purpose of ism internal", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM Code — what it is, purpose, objectives and structure", "cross_family": false } ] }, { "qid": "KOL-2022-10-0689-Q040", "text": "continental shelf", "family": "Other Conventions", "subtopic": "UNCLOS", "tid": "KOL-2022-10-0689", "tray": "review", "candidates": [ { "answer_id": "UNCLOS-004", "score": 0.850382924079895, "sibling_score": 0.850382924079895, "answer_score": 0.5657201290130615, "sibling_qid": "KOL-2026-03-1198-Q008", "sibling_text": "continental shelf", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is the continental shelf under UNCLOS and what is its range?", "cross_family": false }, { "answer_id": "UNCLOS-003", "score": 0.6514266133308411, "sibling_score": 0.6514266133308411, "answer_score": 0.43071884512901304, "sibling_qid": "KOL-2025-09-1054-Q007", "sibling_text": "territorial waters", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What are the maritime zones under UNCLOS — territorial waters, the contiguous zone and the international maritime boundary?", "cross_family": false }, { "answer_id": "UNCLOS-005", "score": 0.6397075057029724, "sibling_score": 0.6397075057029724, "answer_score": 0.4709182560443878, "sibling_qid": "KOC-2024-07-0359-Q001", "sibling_text": "coastal state requirements as per unclos", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is a coastal state under UNCLOS, and how does it differ from the flag state and the port state?", "cross_family": false } ] }, { "qid": "KOL-2022-10-0689-Q041", "text": "elements of ism", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOL-2022-10-0689", "tray": "review", "candidates": [ { "answer_id": "ISM-ELEM-003", "score": 0.7201358079910278, "sibling_score": 0.7201358079910278, "answer_score": 0.4347876667976379, "sibling_qid": "KOC-2026-02-0818-Q006", "sibling_text": "ism elements", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": false }, { "answer_id": "ISM-ELEM-002", "score": 0.6075708866119385, "sibling_score": 0.6075708866119385, "answer_score": null, "sibling_qid": "KOC-2026-02-0832-Q008", "sibling_text": "ism code explain all elements", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the ISM Code?", "cross_family": false }, { "answer_id": "ISPS-OV-001", "score": 0.6005909442901611, "sibling_score": 0.6005909442901611, "answer_score": null, "sibling_qid": "KOL-2024-11-0890-Q006", "sibling_text": "isps elements", "sibling_family": "ISPS", "via": "sibling", "answer_title": "ISPS Code: what it is, structure and key elements", "cross_family": true } ] }, { "qid": "KOL-2022-10-1714-Q004", "text": "Safety valve setting( I told 2-3% of maximum working pressure then he said no) blow down pressure of safety valve( wanted to listen value) 5. Internal", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2022-10-1714", "tray": "review", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-002", "score": 0.7620448470115662, "sibling_score": 0.7620448470115662, "answer_score": null, "sibling_qid": "KOL-2026-02-3922-Q005", "sibling_text": "what is lifting of safety valve tell only within 3 percent of designated set pressure nothing else", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Acceptance limits and durations — the accumulation limit, the maximum test periods, and the action if the limit is exceeded", "cross_family": false }, { "answer_id": "ECON-EGB-004", "score": 0.725450336933136, "sibling_score": 0.725450336933136, "answer_score": 0.5615332603454589, "sibling_qid": "KOL-2026-09-4304-Q003", "sibling_text": "safety valve setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Safety-valve setting after overhaul & why set higher than the boiler", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.7113714218139648, "sibling_score": 0.7113714218139648, "answer_score": null, "sibling_qid": "MUM-2026-02-1255-Q006", "sibling_text": "setting of safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false } ] }, { "qid": "KOL-2022-10-1926-Q001", "text": "Type of engine sailed", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOL-2022-10-1926", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8490241169929504, "sibling_score": 0.8490241169929504, "answer_score": null, "sibling_qid": "MUM-2026-04-1007-Q002", "sibling_text": "type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.7678064703941345, "sibling_score": 0.7678064703941345, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q001", "sibling_text": "type of ship sailed and engines details", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7359234094619751, "sibling_score": 0.7359234094619751, "answer_score": null, "sibling_qid": "KOL-2025-12-2031-Q002", "sibling_text": "type of ship and engine sailed engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "KOL-2022-10-2611-Q001", "text": "Type of ship ,type of generator, specification,", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2022-10-2611", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.7304168939590454, "sibling_score": 0.7304168939590454, "answer_score": null, "sibling_qid": "CHE-2026-04-0373-Q001S6", "sibling_text": "type of ship specification of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ALT-GEN-P01-002", "score": 0.7193015813827515, "sibling_score": 0.7193015813827515, "answer_score": 0.5544980645179748, "sibling_qid": "MUM-2026-02-1969-Q003", "sibling_text": "type of generator on ship", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "2. Types of generator/alternator carried onboard", "cross_family": true }, { "answer_id": "ETP-344-P01-001", "score": 0.6854576468467712, "sibling_score": 0.6854576468467712, "answer_score": null, "sibling_qid": "MUM-2026-04-2675-Q006S5", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false } ] }, { "qid": "KOL-2022-10-2615-Q002", "text": "Type of ship, type of generator, electronic governor , PID controller", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2022-10-2615", "tray": "review", "candidates": [ { "answer_id": "GOV-082-P01-002", "score": 0.7434289455413818, "sibling_score": 0.7434289455413818, "answer_score": 0.5669995456933975, "sibling_qid": "MUM-2026-06-3396-Q006", "sibling_text": "type of governor limiter in your ships governor", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Types of governor fitted on ships and how they differ", "cross_family": false }, { "answer_id": "GOV-P02-005", "score": 0.7095258235931396, "sibling_score": 0.7095258235931396, "answer_score": null, "sibling_qid": "KOL-2025-08-2847-Q018", "sibling_text": "pid in electronic governor", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "PID control, loop stability & detuning", "cross_family": true }, { "answer_id": "ALT-GEN-P01-002", "score": 0.6829351186752319, "sibling_score": 0.6829351186752319, "answer_score": 0.5445976704359055, "sibling_qid": "MUM-2026-02-1969-Q003", "sibling_text": "type of generator on ship", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "2. Types of generator/alternator carried onboard", "cross_family": true } ] }, { "qid": "KOL-2022-10-3580-Q005", "text": "Refer charging oil 2nd surveyor", "family": "Refrigeration & AC", "subtopic": "Refrigeration Lubricating Oil / Flock Point / Oil Charging", "tid": "KOL-2022-10-3580", "tray": "new", "candidates": [ { "answer_id": "REEF-COMP-004", "score": 0.6365253925323486, "sibling_score": 0.6365253925323486, "answer_score": 0.38048163950443264, "sibling_qid": "MUM-2026-05-3245-Q001", "sibling_text": "how will you charge oil in refer", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Charging, replenishing and draining compressor lube oil — including with no charging pump", "cross_family": false }, { "answer_id": "BTKS-573-001", "score": 0.5125284194946289, "sibling_score": 0.5125284194946289, "answer_score": null, "sibling_qid": "MUM-2025-12-0615-Q003", "sibling_text": "fuel oil tabk survey", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "How will you prepare a fuel-oil / bunker tank for survey, inspection or hot work?", "cross_family": true }, { "answer_id": "CASC-COND-001", "score": 0.51116943359375, "sibling_score": 0.51116943359375, "answer_score": null, "sibling_qid": "MUM-2026-03-2616-Q002", "sibling_text": "cascade tank found oil traces as 2nd engineer first action", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Oil found in the cascade tank, hotwell or observation tank — actions, tracing the source, and preventing ingress", "cross_family": true } ] }, { "qid": "KOL-2022-11-0698-Q007", "text": "What do u mean by repatriation?where you hear this?", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOL-2022-11-0698", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-009", "score": 0.33275458216667175, "sibling_score": 0.33275458216667175, "answer_score": 0.275356987118721, "sibling_qid": "CHE-2025-08-0426-Q009", "sibling_text": "ship owner abandoned the ship what will you do as per mlc i told financial security certificate for repartation", "sibling_family": "MLC", "via": "sibling", "answer_title": "Abandonment — financial security and repatriation", "cross_family": false }, { "answer_id": "REV-PROC-001", "score": 0.27786946296691895, "sibling_score": 0.27786946296691895, "answer_score": null, "sibling_qid": "KOL-2019-11-1495-Q001", "sibling_text": "reversing process mechanism", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Reversing a reversible two-stroke main engine — the principle", "cross_family": true }, { "answer_id": "PTRIP-222-001", "score": 0.2764449417591095, "sibling_score": 0.2764449417591095, "answer_score": null, "sibling_qid": "CHE-2026-05-0581-Q003", "sibling_text": "explain preferential trip", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Preferential trip — purpose, working principle and activation", "cross_family": true } ] }, { "qid": "KOL-2022-11-0698-Q008", "text": "What is CBA?", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOL-2022-11-0698", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-010", "score": 0.5953720211982727, "sibling_score": 0.5953720211982727, "answer_score": 0.27704794704914093, "sibling_qid": "MUM-2025-11-0573-Q005", "sibling_text": "which parties are a part of cba", "sibling_family": "MLC", "via": "sibling", "answer_title": "SEA, the CBA parties, and how wages are set — action on non-payment", "cross_family": false }, { "answer_id": "CB033-C-001", "score": 0.453646183013916, "sibling_score": 0.453646183013916, "answer_score": null, "sibling_qid": "CHE-2026-04-0370-Q002", "sibling_text": "what is acb", "sibling_family": "Electrical - Switchgear & Protection", "via": "sibling", "answer_title": "How do you carry out maintenance and testing on an ACB / main circuit breaker?", "cross_family": true }, { "answer_id": "CB-ACBVCBSF6-E-001", "score": 0.44346052408218384, "sibling_score": 0.44346052408218384, "answer_score": null, "sibling_qid": "MUM-2025-07-1556-Q002", "sibling_text": "cb types", "sibling_family": "", "via": "sibling", "answer_title": "What are the common types of circuit breakers used onboard and where are ACB, MCB, MCCB, VCB and SF6 breakers applied?", "cross_family": false } ] }, { "qid": "KOL-2022-11-0701-Q002", "text": "Lrit,who received signal", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "KOL-2022-11-0701", "tray": "new", "candidates": [ { "answer_id": "EPIRB-003", "score": 0.44762247800827026, "sibling_score": 0.44762247800827026, "answer_score": 0.2843305855989456, "sibling_qid": "KOL-2021-01-0465-Q005", "sibling_text": "all about epirb signal received by", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What signal does the EPIRB send — frequency, how and where it is routed, who receives it, and how it is stored and activated?", "cross_family": true }, { "answer_id": "EICU-MAN-P02-002", "score": 0.4101189970970154, "sibling_score": 0.4101189970970154, "answer_score": null, "sibling_qid": "KOC-2023-01-0975-Q001", "sibling_text": "1 sulzer rta man draw explain hw signal is going", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Manoeuvring on RT-flex, Sulzer RTA and Mitsubishi UEC", "cross_family": true }, { "answer_id": "MIB-B-001", "score": 0.4084930419921875, "sibling_score": 0.4084930419921875, "answer_score": null, "sibling_qid": "MUM-2023-05-1386-Q010", "sibling_text": "x how do you read these signal i said fet", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "MOSFET, FET and JFET — construction, operation and where they are used", "cross_family": true } ] }, { "qid": "KOL-2022-11-0701-Q003", "text": "Mlc purpose,article, certificate", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOL-2022-11-0701", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-006", "score": 0.7042118906974792, "sibling_score": 0.7042118906974792, "answer_score": 0.3676632046699524, "sibling_qid": "MUM-2026-06-3656-Q002", "sibling_text": "certificates under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false }, { "answer_id": "MLC-WRH-B-008", "score": 0.54398512840271, "sibling_score": 0.54398512840271, "answer_score": null, "sibling_qid": "KOC-2025-12-0746-Q004", "sibling_text": "as per mlc what is the validity of a medical certificate", "sibling_family": "MLC", "via": "sibling", "answer_title": "Medical certificate — requirements, validity, and joining on an expired one", "cross_family": false }, { "answer_id": "ISPS-SL-001", "score": 0.5235917568206787, "sibling_score": 0.5235917568206787, "answer_score": null, "sibling_qid": "KOL-2022-11-0697-Q003", "sibling_text": "isps purpose certificate", "sibling_family": "ISPS", "via": "sibling", "answer_title": "The ISPS Code — purpose, scope and the SOLAS link", "cross_family": true } ] }, { "qid": "KOL-2022-11-0702-Q006", "text": "CBA, whats in that? Rao asked me some qstns abt tug I have worked in .Bollard pull test How it is carried out?", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOL-2022-11-0702", "tray": "new", "candidates": [ { "answer_id": "EEDI-B-001", "score": 0.5585677027702332, "sibling_score": 0.5585677027702332, "answer_score": null, "sibling_qid": "KOC-2025-06-0615-Q010", "sibling_text": "eedi and eeoi also formula internal ubaid sir company and vessel sailed bollard pull test offshore", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "EEDI — formula, unit and the calculation terms", "cross_family": true }, { "answer_id": "RES-PROP-P02-001", "score": 0.5407055616378784, "sibling_score": 0.5407055616378784, "answer_score": null, "sibling_qid": "KOL-2022-08-0674-Q001", "sibling_text": "towing experiment how it s carried out in detail what values are found using this experiment", "sibling_family": "", "via": "sibling", "answer_title": "Ship model and towing tests — purpose, scaling and resistance prediction", "cross_family": false }, { "answer_id": "CRANE-ROCK-LT-004", "score": 0.5335319638252258, "sibling_score": 0.5335319638252258, "answer_score": null, "sibling_qid": "KOL-2024-12-3735-Q002", "sibling_text": "rocking test of crane 2 cross head bearing open for survey 3 how to take rudder drop and where put teremal gauge and where is the reference mark 4 how to remove generator main bearing it s opening from top 5 jumping clearance where to take and name of place in between 6 how seleve is fitted in propeller boss and material of seleve", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Slew bearing type and toroidal wear behind the rocking/racking test", "cross_family": true } ] }, { "qid": "KOL-2022-11-0705-Q003", "text": "Type of shore connection in marpol and comes under which annex ?", "family": "MARPOL - Annex I (Oil)", "subtopic": "Standard Discharge Connection", "tid": "KOL-2022-11-0705", "tray": "review", "candidates": [ { "answer_id": "MARPOL-OV-005", "score": 0.7638981938362122, "sibling_score": 0.7638981938362122, "answer_score": 0.5223317772150039, "sibling_qid": "KOL-2025-09-1091-Q009", "sibling_text": "type of shore receptation facility discharge connection under all marpol annex", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Port reception facilities", "cross_family": true }, { "answer_id": "ISC-329-002", "score": 0.6860998868942261, "sibling_score": 0.6860998868942261, "answer_score": 0.49927040934562683, "sibling_qid": "MUM-2025-09-1639-Q005", "sibling_text": "shore connection procedure", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "How is the international shore connection connected and used when taking fire-fighting assistance from shore or another ship?", "cross_family": true }, { "answer_id": "SHORE-CONN-P03-001", "score": 0.6857969760894775, "sibling_score": 0.6857969760894775, "answer_score": null, "sibling_qid": "KOC-2024-03-1338-Q005", "sibling_text": "shore connection procedure", "sibling_family": "", "via": "sibling", "answer_title": "Taking electrical shore power in dry dock — preparation, checks and procedure", "cross_family": false } ] }, { "qid": "KOL-2022-11-0705-Q005", "text": "Protective place for fuel oil bunker tank.", "family": "MARPOL - General & Compliance", "subtopic": "Bunker Tank Location", "tid": "KOL-2022-11-0705", "tray": "review", "candidates": [ { "answer_id": "BUNK-PLAN-002", "score": 0.7310876846313477, "sibling_score": 0.7310876846313477, "answer_score": null, "sibling_qid": "KOL-2024-11-3725-Q004", "sibling_text": "bunker safety precautions taken according to environment protection", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Safety, environmental, electrical and deck-round precautions during bunkering", "cross_family": false }, { "answer_id": "BTKS-573-003", "score": 0.6741287112236023, "sibling_score": 0.6741287112236023, "answer_score": null, "sibling_qid": "MUM-2025-07-0357-Q004S2", "sibling_text": "bunker tank inspection tank is empty and ventilated", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "How will you inspect a bunker tank when the tank is empty and ventilated?", "cross_family": false }, { "answer_id": "VENT-HD-005", "score": 0.6667921543121338, "sibling_score": 0.6667921543121338, "answer_score": null, "sibling_qid": "MUM-2026-05-3000-Q004", "sibling_text": "bunker tank vent maintenance p", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Inspections and maintenance on tank vent heads", "cross_family": false } ] }, { "qid": "KOL-2022-11-1716-Q001", "text": "Refrigeration system Suction solenoid valve frosting.3 important Reason, want to listen oil in evaporator coil.", "family": "Refrigeration & AC", "subtopic": "Refrigeration Faults / Checks", "tid": "KOL-2022-11-1716", "tray": "review", "candidates": [ { "answer_id": "REEF-COMP-008", "score": 0.7067438960075378, "sibling_score": 0.7067438960075378, "answer_score": 0.5726617991924285, "sibling_qid": "KOC-2022-12-1799-Q015", "sibling_text": "why frosting on suction vlv", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Valves, clearances, oil carry-over, refrigerant-in-oil, frosting, tandem valves, cooling — fault checks", "cross_family": false }, { "answer_id": "REF-CYC-002", "score": 0.663879930973053, "sibling_score": 0.663879930973053, "answer_score": null, "sibling_qid": "KOL-2022-05-1684-Q009", "sibling_text": "why the master solenoid valve in refrigeration", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "2. Refrigeration plant components and their control functions", "cross_family": false }, { "answer_id": "REEF-COMP-001", "score": 0.6535001397132874, "sibling_score": 0.6535001397132874, "answer_score": null, "sibling_qid": "KOL-2026-10-4320-Q007", "sibling_text": "how to charge oil in domestic fridge compressor why vacuum pump needed which gauge required", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Reefer/AC compressor safeties and cut-outs — safety valve, HP and LP cut-outs", "cross_family": false } ] }, { "qid": "KOL-2022-11-1717-Q003", "text": "Suction & Spill valve pump working principle", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Pump Delivery Valve", "tid": "KOL-2022-11-1717", "tray": "new", "candidates": [ { "answer_id": "PCP-BF01-001", "score": 0.6173950433731079, "sibling_score": 0.6173950433731079, "answer_score": null, "sibling_qid": "KOL-2025-01-1967-Q005", "sibling_text": "progressive cavity pump working", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "What is a progressive cavity pump — construction and working", "cross_family": true }, { "answer_id": "PCD-P05-02", "score": 0.6099158525466919, "sibling_score": 0.6099158525466919, "answer_score": null, "sibling_qid": "KOL-2026-10-4324-Q007", "sibling_text": "screw type pump working", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Screw pump — construction, working, types, drive arrangement, clearances, why preferred over gear", "cross_family": true }, { "answer_id": "FP-OVHL-006", "score": 0.607055127620697, "sibling_score": 0.607055127620697, "answer_score": null, "sibling_qid": "KOL-2024-12-1792-Q003", "sibling_text": "sulzer fuel pump construction working princle", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Main-engine fuel pump — construction, working, VIT, reversing, MC vs ME-C", "cross_family": false } ] }, { "qid": "KOL-2022-11-1718-Q002", "text": "Explain main air starting system .how automatic air starting valve work? 2 .how condeser drain pot with weir arrangement work ,how boiler water level maintain ,dp transmitter working", "family": "2-Stroke - Reversing & Maneuvering", "subtopic": "Air Distributor", "tid": "KOL-2022-11-1718", "tray": "review", "candidates": [ { "answer_id": "VIT-MECH-A-002", "score": 0.6609250903129578, "sibling_score": 0.6609250903129578, "answer_score": null, "sibling_qid": "MUM-2022-10-1029-Q001", "sibling_text": "types of egr boiler burner safety compressor valve in detail copt trips and how maintain water level in condenser vit start air distributor me fuel pump boiler water tests phosphate and significance", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How VIT works — varying the start of injection on the fuel pump", "cross_family": true }, { "answer_id": "SAV-003", "score": 0.6530777215957642, "sibling_score": 0.6530777215957642, "answer_score": null, "sibling_qid": "KOL-2019-08-1475-Q002", "sibling_text": "man b w starting air pilot signal pilot valve automatic air start valve position and function 2 oil in boiler gauge glass reason and your action 3 framo pump relief valve system pressure control valve bleed valve stc valve pilot valve function and position 4 alpha lubricator working oil pressure type of feed back sensor from where it get signal", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Action when a unit starting air valve leaks or the line goes red hot in manoeuvring", "cross_family": true }, { "answer_id": "DP-TX-001", "score": 0.6507161855697632, "sibling_score": 0.6507161855697632, "answer_score": null, "sibling_qid": "KOL-2020-11-1558-Q003", "sibling_text": "dp transmitter and boiler level goes down how dp transmitter works in this situation", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "DP cell / DP transmitter — working principle, construction and signal", "cross_family": true } ] }, { "qid": "KOL-2022-11-2620-Q002", "text": "exactly happens", "family": "", "subtopic": "High Voltage System", "tid": "KOL-2022-11-2620", "tray": "new", "candidates": [ { "answer_id": "FSE-P01-001", "score": 0.5695026516914368, "sibling_score": 0.5695026516914368, "answer_score": null, "sibling_qid": "MUM-2024-07-0185-Q006", "sibling_text": "fse what actually happens", "sibling_family": "", "via": "sibling", "answer_title": "What is free surface effect? Explain the basic concept.", "cross_family": false }, { "answer_id": "OC-UV-TRIP-007", "score": 0.5346288084983826, "sibling_score": 0.5346288084983826, "answer_score": null, "sibling_qid": "KOC-2025-07-0633-Q034", "sibling_text": "where it could happen", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "General overcurrent / undervoltage trips — alarms, values and failure effects", "cross_family": false }, { "answer_id": "REV-PROC-001", "score": 0.5291957855224609, "sibling_score": 0.5291957855224609, "answer_score": null, "sibling_qid": "CHE-2026-09-3919-Q002", "sibling_text": "reversing how happening", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Reversing a reversible two-stroke main engine — the principle", "cross_family": false } ] }, { "qid": "KOL-2022-11-2621-Q004", "text": "Which Types of ship you have done ? - LPG Tell me what electronic components you have on deck?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2022-11-2621", "tray": "new", "candidates": [ { "answer_id": "MSB-ESB-D-001", "score": 0.64854896068573, "sibling_score": 0.64854896068573, "answer_score": null, "sibling_qid": "MUM-2025-09-0448-Q022", "sibling_text": "types of electrical equipment on your ship", "sibling_family": "", "via": "sibling", "answer_title": "Main & emergency switchboards: function, construction & ship power distribution", "cross_family": false }, { "answer_id": "T038-P01-002", "score": 0.640354335308075, "sibling_score": 0.640354335308075, "answer_score": 0.4660467147827148, "sibling_qid": "CHE-2026-04-0374-Q001", "sibling_text": "type of ship sailed high or low voltage lv ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "HV system onboard — layout, components, applications, earthing & protection", "cross_family": false }, { "answer_id": "LPG-LNG-009", "score": 0.6240146160125732, "sibling_score": 0.6240146160125732, "answer_score": null, "sibling_qid": "MUM-2026-03-0840-Q001", "sibling_text": "type of ship sailed lpg fully refrigerated", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Gas-carrier fundamentals and ship-specific traps", "cross_family": false } ] }, { "qid": "KOL-2022-11-2621-Q005", "text": "on exi ,exd and Explain how zener diode making constant voltage .", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOL-2022-11-2621", "tray": "new", "candidates": [ { "answer_id": "EPC-P02-03", "score": 0.6291638016700745, "sibling_score": 0.6291638016700745, "answer_score": 0.5299749910831452, "sibling_qid": "KOL-2023-05-2654-Q001", "sibling_text": "zener diode how to control voltage and where excess current go answer through resistance surveyor told me resistance i forget to tell them this things i explain all this thing but answer is through resistance", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Where is a zener diode used on board and why — voltage regulator, AVR, clipper — and explain one application in detail.", "cross_family": false }, { "answer_id": "EPC-P02-01", "score": 0.6232112646102905, "sibling_score": 0.6232112646102905, "answer_score": 0.5429739415645599, "sibling_qid": "MUM-2025-02-1487-Q003", "sibling_text": "zener diode working", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a zener diode? Draw its symbol, explain its working principle, and draw and explain its characteristic curve including the zener (breakdown) voltage.", "cross_family": false }, { "answer_id": "EPC-P02-02", "score": 0.4756036579608917, "sibling_score": null, "answer_score": 0.4756036579608917, "sibling_qid": "", "sibling_text": "how is a zener diode different from a normal pn crystal diode construction behaviour output and use doping heavy in the zener light in the normal diode thin versus wide depletion layer so low sharp breakdown versus high piv operating region zener works in reverse breakdown by design normal diode works forward breakdown avoided", "sibling_family": "", "via": "answer_title", "answer_title": "How is a zener diode different from a normal (PN / crystal) diode — construction, behaviour, output, and use?", "cross_family": false } ] }, { "qid": "KOL-2022-11-2622-Q008", "text": "dol starter working", "family": "Electrical - Motors & Starters", "subtopic": "DOL Starter", "tid": "KOL-2022-11-2622", "tray": "review", "candidates": [ { "answer_id": "STARTER-DEC-B-003", "score": 0.7037212252616882, "sibling_score": 0.7037212252616882, "answer_score": 0.3314239412546158, "sibling_qid": "KOC-2025-07-1559-Q009", "sibling_text": "dol starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "DOL starter — use, current, range and limits", "cross_family": false }, { "answer_id": "STARTER-DEC-B-002", "score": 0.6947475075721741, "sibling_score": 0.6947475075721741, "answer_score": null, "sibling_qid": "KOL-2026-04-2984-Q002", "sibling_text": "explain dol starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Why a starter is needed & reducing starting current", "cross_family": false }, { "answer_id": "STR-DEC-A-001", "score": 0.6142934560775757, "sibling_score": 0.6142934560775757, "answer_score": 0.30704406946897506, "sibling_qid": "KOC-2025-03-1511-Q002", "sibling_text": "draw dol starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false } ] }, { "qid": "KOL-2022-11-2624-Q005", "text": "what is zener diode n how it works in intrinsically safe ckt", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOL-2022-11-2624", "tray": "review", "candidates": [ { "answer_id": "FSF-BF073-004", "score": 0.6967605948448181, "sibling_score": 0.6967605948448181, "answer_score": null, "sibling_qid": "CHE-2026-03-0359-Q001", "sibling_text": "zener diode zener barrier working in intrinsically safe", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a magnetic fail safe?", "cross_family": false }, { "answer_id": "HAZ-EX-B-001", "score": 0.6685067415237427, "sibling_score": 0.6685067415237427, "answer_score": null, "sibling_qid": "CHE-2026-03-0358-Q005", "sibling_text": "zener barrier working in intrinsically safe", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Intrinsically safe (Ex i) equipment — what it is, how it works, where it is used, how you identify it", "cross_family": false }, { "answer_id": "EPC-P02-03", "score": 0.5997772216796875, "sibling_score": 0.5997772216796875, "answer_score": 0.49153311252593995, "sibling_qid": "KOL-2021-09-2493-Q003", "sibling_text": "zener diode how to zener acts as a relief v v how to limit the current", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Where is a zener diode used on board and why — voltage regulator, AVR, clipper — and explain one application in detail.", "cross_family": false } ] }, { "qid": "KOL-2022-11-2626-Q002", "text": "Types of electrical diagram ? Explain each", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Electrical Components / Electronics", "tid": "KOL-2022-11-2626", "tray": "review", "candidates": [ { "answer_id": "ELEC-ELX-006", "score": 0.8151364922523499, "sibling_score": 0.8151364922523499, "answer_score": 0.5884298890829086, "sibling_qid": "KOL-2016-08-2064-Q001", "sibling_text": "type of electrical diagram difference between wiring diagram and electrical diagram", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Electrical drawings and wiring diagrams", "cross_family": false }, { "answer_id": "EPC-P03-004", "score": 0.7158256769180298, "sibling_score": 0.7158256769180298, "answer_score": null, "sibling_qid": "KOC-2024-09-1399-Q004", "sibling_text": "ladder diagram", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is ladder logic? Explain a ladder diagram and ladder programming with a simple example.", "cross_family": false }, { "answer_id": "EPC-P01-03", "score": 0.6630752682685852, "sibling_score": 0.6630752682685852, "answer_score": null, "sibling_qid": "CHE-2026-09-3911-Q006", "sibling_text": "all types of rectifier s and diagrams", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Rectifiers — definition, types, and where they are used on board", "cross_family": false } ] }, { "qid": "KOL-2022-11-2626-Q003", "text": "difference between amplifier, rectifier, inverter", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Zener / Diode / Rectifier", "tid": "KOL-2022-11-2626", "tray": "new", "candidates": [ { "answer_id": "VFD-INV-P02-005", "score": 0.6324419379234314, "sibling_score": 0.6324419379234314, "answer_score": 0.4440890610218048, "sibling_qid": "CHE-2026-03-0360-Q006", "sibling_text": "what is inverter and rectifier", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "How do rectifier, DC link and inverter stages convert AC to DC and DC to AC?", "cross_family": false }, { "answer_id": "EPC-P01-03", "score": 0.5796982645988464, "sibling_score": 0.5796982645988464, "answer_score": 0.3963598474860191, "sibling_qid": "KOC-2024-09-0413-Q003", "sibling_text": "rectifiers", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Rectifiers — definition, types, and where they are used on board", "cross_family": false }, { "answer_id": "XFMR-THY-D-001", "score": 0.5633966326713562, "sibling_score": 0.5633966326713562, "answer_score": null, "sibling_qid": "KOL-2017-12-2161-Q003", "sibling_text": "explain transformer converter inverter transmitter", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Transformer — principle and working", "cross_family": false } ] }, { "qid": "KOL-2022-11-2627-Q001", "text": "Type of alternator?excitation system? Electrical advantage of brushless excitation system? Wants diode as fast acting switch time lag is reduced compared to conventional", "family": "Electrical - Generator & Alternator", "subtopic": "Brushless Alternator", "tid": "KOL-2022-11-2627", "tray": "review", "candidates": [ { "answer_id": "BRUSHALT-A-001", "score": 0.788908064365387, "sibling_score": 0.788908064365387, "answer_score": null, "sibling_qid": "KOL-2021-07-2453-Q001", "sibling_text": "brush less alternator excitation", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01 · Working principle of the brushless alternator / brushless excitation systemHigh", "cross_family": false }, { "answer_id": "BL-ALT-C-001", "score": 0.7884171605110168, "sibling_score": 0.7884171605110168, "answer_score": 0.5868158876895905, "sibling_qid": "KOL-2021-03-2432-Q002", "sibling_text": "brushless alternator only tell electrical advantage", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Electrical advantages of brushless excitation over brushed / static", "cross_family": false }, { "answer_id": "DIODESO-002", "score": 0.7691287994384766, "sibling_score": 0.7691287994384766, "answer_score": 0.6247196137905121, "sibling_qid": "CHE-2026-05-0532-Q015", "sibling_text": "rotating diodes and brushless alternator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Explain the rotating diodes in a brushless alternator and the problems that arise in the brushless excitation system, including diode short circuit", "cross_family": false } ] }, { "qid": "KOL-2022-11-3581-Q003", "text": "shown me MC-C engine fuel pump blur image on paper and asked to write name of all parts ? function of suction valve ?vit rack postion and fuel rack postion !? Ok fn 6 clear repeat 4 B Keep sharing questions and cross too thank you", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Pump Delivery Valve", "tid": "KOL-2022-11-3581", "tray": "review", "candidates": [ { "answer_id": "VIT-MECH-C-001", "score": 0.7572228312492371, "sibling_score": 0.7572228312492371, "answer_score": null, "sibling_qid": "KOL-2023-02-1928-Q004", "sibling_text": "what is purpose of vit explain full what happens inside the fuel pump how movement of the vit rack happens", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "MAN B&W MC VIT — varying the start of injection on a helix pump", "cross_family": false }, { "answer_id": "FINJ-002", "score": 0.7565755248069763, "sibling_score": 0.7565755248069763, "answer_score": null, "sibling_qid": "MUM-2025-11-2491-Q007", "sibling_text": "me fuel inectior vv suction valve parts test cross question how to know correct pattern", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel injector overhaul and testing — spray pattern and opening pressure", "cross_family": false }, { "answer_id": "FCL-P03-002", "score": 0.7411516904830933, "sibling_score": 0.7411516904830933, "answer_score": null, "sibling_qid": "KOC-2021-09-1767-Q004", "sibling_text": "fuel pump lead with dia i explained mc engine one", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "MAN B&W / MC-C / MCC fuel pump timing and lead", "cross_family": false } ] }, { "qid": "KOL-2022-11-3583-Q004", "text": "Boiler safety valve where, how setting is done related to previous report,", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2022-11-3583", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-001", "score": 0.8050826191902161, "sibling_score": 0.8050826191902161, "answer_score": null, "sibling_qid": "CHE-2026-05-0597-Q020", "sibling_text": "boiler safety valve how the setting is done", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.7794800996780396, "sibling_score": 0.7794800996780396, "answer_score": null, "sibling_qid": "MUM-2026-03-2935-Q013", "sibling_text": "boiler safety valve setting in presence of surveyor after survey", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.7638975381851196, "sibling_score": 0.7638975381851196, "answer_score": null, "sibling_qid": "KOC-2026-05-0034-Q010", "sibling_text": "boiler safety valve types and how safety valve is set complete procedures", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOL-2022-11-4018-Q003", "text": "Types of netural. Which was in your ship? Where earthed netural system is used? And why?", "family": "Electrical - Distribution & MSB", "subtopic": "High Voltage System / Earthing / Shore Supply", "tid": "KOL-2022-11-4018", "tray": "review", "candidates": [ { "answer_id": "ENR-P02B-002", "score": 0.685510516166687, "sibling_score": 0.685510516166687, "answer_score": 0.5432478308677673, "sibling_qid": "KOL-2022-05-2568-Q003", "sibling_text": "types of earthing systems which was being followed on your ship advantages of insulated neutral system", "sibling_family": "", "via": "sibling", "answer_title": "Insulated / isolated neutral system — continuity, fault behaviour, advantages and disadvantages", "cross_family": false }, { "answer_id": "EARTH-NEU-02A-001", "score": 0.6337687373161316, "sibling_score": 0.6337687373161316, "answer_score": 0.5098854690790177, "sibling_qid": "CHE-2026-09-3923-Q006", "sibling_text": "earthed neutral system", "sibling_family": "Electrical - Distribution & MSB", "via": "sibling", "answer_title": "Earthed (neutral-earth) system — what it is, why we use it, pros and cons", "cross_family": false }, { "answer_id": "EARTH-NER-A-004", "score": 0.6195284128189087, "sibling_score": 0.6195284128189087, "answer_score": null, "sibling_qid": "KOC-2022-02-1173-Q002", "sibling_text": "ships electrical system insulated systems what advantage earth system what advantage why called 3 wire and 4 wire system", "sibling_family": "", "via": "sibling", "answer_title": "Three-phase three-wire vs four-wire — and why the fourth wire", "cross_family": false } ] }, { "qid": "KOL-2022-11-4018-Q004", "text": "One of three phase is broken what could be the reason?", "family": "Electrical - Distribution & MSB", "subtopic": "Phase Sequence / Three-Phase Fault", "tid": "KOL-2022-11-4018", "tray": "new", "candidates": [ { "answer_id": "SPHS-B-005", "score": 0.6475048065185547, "sibling_score": 0.6475048065185547, "answer_score": null, "sibling_qid": "KOL-2019-12-2355-Q004", "sibling_text": "one phase is hot but current is same in the phases reason action to be taken", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "One lead is hot, but the current is the same in all three phases — what is the reason, and what action?", "cross_family": true }, { "answer_id": "EF-SHAFT-ERES-P05-001", "score": 0.6102323532104492, "sibling_score": 0.6102323532104492, "answer_score": null, "sibling_qid": "MUM-2022-11-2715-Q029", "sibling_text": "single earth fault in 3 phase 3 wire and 3 phase 4 wire", "sibling_family": "", "via": "sibling", "answer_title": "Earth fault detection, indication and location", "cross_family": false }, { "answer_id": "EF-DET-P01-004", "score": 0.6004116535186768, "sibling_score": 0.6004116535186768, "answer_score": null, "sibling_qid": "CHE-2026-04-0369-Q004", "sibling_text": "why finding earth fault is important if one phase got cut and grounded will you get shock why not what happened to the machinery what if two phase cut and ground which one will trip is there black out", "sibling_family": "", "via": "sibling", "answer_title": "Actions on an earth-fault / 440V low-insulation alarm — and the consequences if ignored", "cross_family": false } ] }, { "qid": "KOL-2022-11-4018-Q005", "text": "Types of excitation system and what are parts and their functions?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Faraday Law", "tid": "KOL-2022-11-4018", "tray": "review", "candidates": [ { "answer_id": "BL-ALT-C-003", "score": 0.6741056442260742, "sibling_score": 0.6741056442260742, "answer_score": 0.4844298243522644, "sibling_qid": "KOL-2021-07-2455-Q003", "sibling_text": "types of excitation system", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Compare excitation types: brushed / static / brushless", "cross_family": true }, { "answer_id": "AVR-EXC-G-001", "score": 0.6737108826637268, "sibling_score": 0.6737108826637268, "answer_score": 0.5164089083671569, "sibling_qid": "KOL-2018-05-2198-Q002", "sibling_text": "types of excitation system", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "What excitation is, and the types used onboard", "cross_family": true }, { "answer_id": "CYC-599-003", "score": 0.614702582359314, "sibling_score": 0.614702582359314, "answer_score": null, "sibling_qid": "KOL-2019-10-2330-Q001", "sibling_text": "difference between error type and functional type avr explian static exicitation system 2 cyclo converter and synchrconverter 3 eptw eic and sts", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is the difference between a cycloconverter and a synchroconverter?", "cross_family": false } ] }, { "qid": "KOL-2022-12-0706-Q002", "text": "Distance regulation of fuel oil tank from side as per marpol annex 1.", "family": "MARPOL - General & Compliance", "subtopic": "Bunker Tank Location", "tid": "KOL-2022-12-0706", "tray": "review", "candidates": [ { "answer_id": "TKR-TYPE-002", "score": 0.6683250665664673, "sibling_score": 0.6683250665664673, "answer_score": null, "sibling_qid": "KOL-2022-08-0668-Q001", "sibling_text": "tank distance for type 1 tanker from side and bottom", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "2. Chemical tanker IMO Types 1 / 2 / 3, cargo categories and the IBC Code", "cross_family": true }, { "answer_id": "SHELL-PLT-A-002", "score": 0.6391191482543945, "sibling_score": 0.6391191482543945, "answer_score": null, "sibling_qid": "KOL-2022-09-4013-Q002", "sibling_text": "type of ship at what distance is tank located from ship side and distance between keel and tank bottom coating of the tank", "sibling_family": "", "via": "sibling", "answer_title": "Shell plating, strakes, and the named strakes", "cross_family": false }, { "answer_id": "AV6-P02-02", "score": 0.5970618724822998, "sibling_score": 0.5970618724822998, "answer_score": null, "sibling_qid": "KOL-2022-10-0689-Q053", "sibling_text": "why boiler doesn t have nox stresses on a ship panting arrangements d1 standard of bwm ism extrernal stakeholders one more that i forgot tank distance for type 1 tanker from side and bottom how to draw floodable length curve", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "NOx applicability — which engines, why boilers are outside, and 2-stroke vs 4-stroke comparison", "cross_family": true } ] }, { "qid": "KOL-2022-12-0707-Q003", "text": "rolling,immersion suit", "family": "SOLAS - LSA & Lifeboats", "subtopic": "LSA Code", "tid": "KOL-2022-12-0707", "tray": "new", "candidates": [ { "answer_id": "LB-SURV-C-003", "score": 0.5835107564926147, "sibling_score": 0.5835107564926147, "answer_score": null, "sibling_qid": "CHE-2026-02-0103-Q002", "sibling_text": "immersion suit monthly 6 month and annual maintenance", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Routine maintenance ladder — weekly / monthly / quarterly / 6-monthly onboard checks", "cross_family": false }, { "answer_id": "LB-SURV-C-004", "score": 0.5413276553153992, "sibling_score": 0.5413276553153992, "answer_score": null, "sibling_qid": "KOC-2021-07-0005-Q006", "sibling_text": "freefall lifeboat routines", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Free-fall lifeboat — maintenance, operational test and simulated / free-fall launch", "cross_family": false }, { "answer_id": "LB-D-003", "score": 0.5238552689552307, "sibling_score": 0.5238552689552307, "answer_score": null, "sibling_qid": "KOC-2022-04-0072-Q022", "sibling_text": "life boat type freefall", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Free-fall lifeboat — why this type, why at the stern, stowage", "cross_family": false } ] }, { "qid": "KOL-2022-12-0707-Q004", "text": "hatchcover regulation and fun of hatch coming", "family": "Cargo Ops - Bulk Carriers", "subtopic": "Hatch Cover", "tid": "KOL-2022-12-0707", "tray": "new", "candidates": [ { "answer_id": "HATCH-CVR-006", "score": 0.5795266628265381, "sibling_score": 0.5795266628265381, "answer_score": 0.37212621718645095, "sibling_qid": "CHE-2026-04-0169-Q003", "sibling_text": "how hatch cover is operate", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "How is a hatch cover operated?", "cross_family": false }, { "answer_id": "HATCH-CVR-002", "score": 0.5566620230674744, "sibling_score": 0.5566620230674744, "answer_score": 0.38621018677949903, "sibling_qid": "KOC-2025-03-0563-Q013", "sibling_text": "purpose of hatchcover wedges", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "What is the purpose of hatch cover wedges?", "cross_family": false }, { "answer_id": "HATCH-COAM-005", "score": 0.5452468395233154, "sibling_score": 0.5452468395233154, "answer_score": null, "sibling_qid": "KOC-2025-08-0643-Q006", "sibling_text": "hatch coming and how it s supported", "sibling_family": "", "via": "sibling", "answer_title": "What supports, stays or strengthening members are provided for hatch coamings and large hatch openings?", "cross_family": false } ] }, { "qid": "KOL-2022-12-1719-Q004", "text": "what are different Types of safety valve.? Didn't accept Full lift type valve and consolidated full lift type. Ddnt accept anything from Flanegan book.", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2022-12-1719", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.7280479669570923, "sibling_score": 0.7280479669570923, "answer_score": null, "sibling_qid": "MUM-2026-07-3737-Q004", "sibling_text": "boiler type safety valve type lift of safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "MR-DS-PV-B-006", "score": 0.6844066977500916, "sibling_score": 0.6844066977500916, "answer_score": null, "sibling_qid": "KOC-2026-09-2180-Q009", "sibling_text": "full bore safety valve construction", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "6. Deck isolating valve, deck relief/safety devices, and cargo-tank pressure", "cross_family": false }, { "answer_id": "ACRV-005", "score": 0.6808866858482361, "sibling_score": 0.6808866858482361, "answer_score": 0.4550665199756622, "sibling_qid": "MUM-2026-06-3429-Q010", "sibling_text": "safety valve lift difference", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": false } ] }, { "qid": "KOL-2022-12-1720-Q001", "text": "Vaccum breaker location and function.", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2022-12-1720", "tray": "new", "candidates": [ { "answer_id": "CBKR-H-001", "score": 0.6263480186462402, "sibling_score": 0.6263480186462402, "answer_score": null, "sibling_qid": "KOC-2024-12-1449-Q003", "sibling_text": "vaccum circuit breaker working", "sibling_family": "", "via": "sibling", "answer_title": "How do VCB and SF6 breakers work 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it's material and properties, how and where stress rises on it.", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft Material", "tid": "KOL-2022-12-1720", "tray": "review", "candidates": [ { "answer_id": "HT-A-001", "score": 0.7277041077613831, "sibling_score": 0.7277041077613831, "answer_score": null, "sibling_qid": "MUM-2026-05-3334-Q006", "sibling_text": "crankshaft material and heat treatment", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Heat treatment: what it is, the main methods, and why it is done", "cross_family": false }, { "answer_id": "CRANK-217-001", "score": 0.7228085398674011, "sibling_score": 0.7228085398674011, "answer_score": 0.5361887216567993, "sibling_qid": "MUM-2026-05-3266-Q006", "sibling_text": "material of crankshaft", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankshaft types and how the type is identified", "cross_family": false }, { "answer_id": "CRK-DEFL-001", "score": 0.6951975226402283, "sibling_score": 0.6951975226402283, "answer_score": null, "sibling_qid": "CHE-2026-05-0644-Q006", "sibling_text": "parts of crankshaft explain what stresses are acting on each part of crankshaft and why", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Purpose, timing and scope of crankshaft deflection", "cross_family": false } ] }, { "qid": "KOL-2022-12-2628-Q001", "text": "What type of ship you sailed.have you cleared your written papers..", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2022-12-2628", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.7005609273910522, "sibling_score": 0.7005609273910522, "answer_score": null, "sibling_qid": "KOC-2026-08-2106-Q001", "sibling_text": "status of written oral company type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation 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"answer_id": "TRS-002", "score": 0.6229159235954285, "sibling_score": 0.6229159235954285, "answer_score": 0.45956071615219113, "sibling_qid": "KOC-2026-02-1103-Q008", "sibling_text": "how rudder stock and carrier bearing is attached told 2 half fitted bolts x does bearing turn with rudder i told yes then he told that there are 2 types one turn with rudder other dont turn with rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.5987215042114258, "sibling_score": 0.5987215042114258, "answer_score": null, "sibling_qid": "KOC-2026-03-0879-Q004", "sibling_text": "rudder cross section", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "HULL-PAINT-002", "score": 0.5690102577209473, "sibling_score": 0.5690102577209473, "answer_score": null, "sibling_qid": "CHE-2026-02-0110-Q012", "sibling_text": "rudder internal painting", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Types of hull coating, the paint scheme by section, and why each is used", "cross_family": false } ] }, { "qid": "KOL-2022-12-2630-Q005", "text": "MLC and 2/ E concern part in MLC ?", "family": "MLC", "subtopic": "MLC / DMLC / Work-Rest", "tid": "KOL-2022-12-2630", "tray": "new", "candidates": [ { "answer_id": "ISM-2E-A-001", "score": 0.536026656627655, "sibling_score": 0.536026656627655, "answer_score": null, "sibling_qid": "CHE-2026-04-0163-Q018", "sibling_text": "role of 2e in mlc and ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Roles, duties and responsibilities of a Second Engineer under ISM/SMS", "cross_family": true }, { "answer_id": "MLC-WRH-B-007", "score": 0.4626084566116333, "sibling_score": 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"MUM-2026-03-1294-Q001", "sibling_text": "status of writtens and orals", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": false }, { "answer_id": "ISM-2E-A-004", "score": 0.5035786628723145, "sibling_score": 0.5035786628723145, "answer_score": null, "sibling_qid": "KOC-2022-07-0966-Q018", "sibling_text": "major jobs carried out", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Shipboard jobs, machineries and maintenance areas under the Second Engineer", "cross_family": true }, { "answer_id": "DCB-OVH-008", "score": 0.503508448600769, "sibling_score": 0.503508448600769, "answer_score": 0.30636089146137235, "sibling_qid": "KOC-2025-10-1948-Q012", "sibling_text": "major jobs carried out", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Major ME / AE overhaul jobs carried out onboard", "cross_family": true } ] }, { "qid": "KOL-2022-12-3584-Q004", "text": "ME cylinder head stud tightening procedure", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Cover / Head", "tid": "KOL-2022-12-3584", "tray": "review", "candidates": [ { "answer_id": "CCH-590-004", "score": 0.686070442199707, "sibling_score": 0.686070442199707, "answer_score": null, "sibling_qid": "KOC-2025-06-1918-Q006", "sibling_text": "correct procedure for lifting cylinder head", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "What is the correct procedure for lifting a cylinder head, and what checks do you make on the crane beforehand?", "cross_family": false }, { "answer_id": "METAL-LOCK-003", "score": 0.6578311920166016, "sibling_score": 0.6578311920166016, "answer_score": null, "sibling_qid": "MUM-2026-06-3566-Q007", "sibling_text": "how to repair cylinder head i told metal lock next question metal lock", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Cold repair of cracked cast-iron parts: liner, pump/valve cage, loose bearing seat", "cross_family": false }, { "answer_id": "PRE-TEN-004", "score": 0.652953028678894, "sibling_score": 0.652953028678894, "answer_score": 0.5780964195728302, "sibling_qid": "CHE-2026-02-0474-Q004", "sibling_text": "how will you tighten the hydraulic bolts of the main engine cylinder head", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Tightening cylinder-head hydraulic bolts or nuts without a torque wrench", "cross_family": true } ] }, { "qid": "KOL-2022-12-3584-Q005", "text": "Cast Iron welding procedure ?", "family": "Workshop & Welding", "subtopic": "Cast Iron Welding", "tid": "KOL-2022-12-3584", "tray": "review", "candidates": [ { "answer_id": "WELD-B-001", "score": 0.83741694688797, "sibling_score": 0.83741694688797, "answer_score": 0.5500604093074798, "sibling_qid": "CHE-2026-05-0531-Q005", "sibling_text": "cast iron welding procedure", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding & crack-repair of aluminium and cast iron, including metal stitching", "cross_family": false }, { "answer_id": "LH-ELEC-006", "score": 0.5103681445121765, "sibling_score": null, "answer_score": 0.5103681445121765, "sibling_qid": "", "sibling_text": "6 how would you approach a cast iron valve repair when the examiner probes welding and low hydrogen electrodes first response replace or fit a sound same size valve a welded cast iron repair is a stop gap not equal to new if welding cast iron not a plain mild steel low hydrogen rod the high carbon makes a hard brittle cracking weld", "sibling_family": "", "via": "answer_title", "answer_title": "6. How would you approach a cast-iron valve repair when the examiner probes welding and low-hydrogen electrodes?", "cross_family": false }, { "answer_id": "PW-327-004", "score": 0.5050309002399445, "sibling_score": null, "answer_score": 0.5050309002399445, "sibling_qid": "", "sibling_text": "4 surface preparation before welding clean to bright metal each side of the joint rust loose mill scale paint oil grease moisture and old slag all removed edge preparation to the joint design bevel groove root face root gap deburr", "sibling_family": "", "via": "answer_title", "answer_title": "4. Surface preparation before welding", "cross_family": false } ] }, { "qid": "KOL-2022-12-3584-Q009", "text": "Cast iron welding procedure ?", "family": "Workshop & Welding", "subtopic": "Cast Iron Welding", "tid": "KOL-2022-12-3584", "tray": "review", "candidates": [ { "answer_id": "WELD-B-001", "score": 0.83741694688797, "sibling_score": 0.83741694688797, "answer_score": 0.5500604093074798, "sibling_qid": "CHE-2026-05-0531-Q005", "sibling_text": "cast iron welding procedure", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding & crack-repair of aluminium and cast iron, including metal stitching", "cross_family": false }, { "answer_id": "LH-ELEC-006", "score": 0.5103681445121765, "sibling_score": null, "answer_score": 0.5103681445121765, "sibling_qid": "", "sibling_text": "6 how would you approach a cast iron valve repair when the examiner probes welding and low hydrogen electrodes first response replace or fit a sound same size valve a welded cast iron repair is a stop gap not equal to new if welding cast iron not a plain mild steel low hydrogen rod the high carbon makes a hard brittle cracking weld", "sibling_family": "", "via": "answer_title", "answer_title": "6. How would you approach a cast-iron valve repair when the examiner probes welding and low-hydrogen electrodes?", "cross_family": false }, { "answer_id": "PW-327-004", "score": 0.5050309002399445, "sibling_score": null, "answer_score": 0.5050309002399445, "sibling_qid": "", "sibling_text": "4 surface preparation before welding clean to bright metal each side of the joint rust loose mill scale paint oil grease moisture and old slag all removed edge preparation to the joint design bevel groove root face root gap deburr", "sibling_family": "", "via": "answer_title", "answer_title": "4. Surface preparation before welding", "cross_family": false } ] }, { "qid": "KOL-2022-12-3585-Q002", "text": "what destructive test u do on boiler and do u need specimen or not for the test.?", "family": "NDT & Material Testing", "subtopic": "Impact / Charpy", "tid": "KOL-2022-12-3585", "tray": "new", "candidates": [ { "answer_id": "BLR-GG-004", "score": 0.6249382495880127, "sibling_score": 0.6249382495880127, "answer_score": null, "sibling_qid": "KOL-2019-10-1487-Q004", "sibling_text": "boiler level testing methods while boiler in operation", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "How do you test or cross-blow a boiler gauge glass, and respond to wrong indication?", "cross_family": true }, { "answer_id": "BLR-SURV-P02-004", "score": 0.6238393783569336, "sibling_score": 0.6238393783569336, "answer_score": null, "sibling_qid": "CHE-2026-09-3927-Q003", "sibling_text": "pop up test procedure on boiler", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": true }, { "answer_id": "MATPROP-A-006", "score": 0.6189771294593811, "sibling_score": 0.6189771294593811, "answer_score": null, "sibling_qid": "NOI-2026-09-0004-Q008", "sibling_text": "type of destructive test in detail", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Destructive and material tests", "cross_family": false } ] }, { "qid": "KOL-2022-12-3586-Q003", "text": "Compressor overhaul", "family": "Air Compressor", "subtopic": "Reciprocating Compressor", "tid": "KOL-2022-12-3586", "tray": "review", "candidates": [ { "answer_id": "UNL-330-003", "score": 0.7609307765960693, "sibling_score": 0.7609307765960693, "answer_score": 0.5419648170471191, "sibling_qid": "KOC-2023-10-0984-Q005", "sibling_text": "checks on compressor unloader during overhaul", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "What checks are carried out on the compressor unloader during overhaul?", "cross_family": false }, { "answer_id": "AC-VE-001", "score": 0.6736744046211243, "sibling_score": 0.6736744046211243, "answer_score": null, "sibling_qid": "KOL-2023-02-1725-Q007", "sibling_text": "volumetric efficiency of compressor gone done bumping clearance adjustment", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Volumetric efficiency: define it, and if it drops how do you improve it (with bumping clearance)?", "cross_family": false }, { "answer_id": "REEF-COMP-008", "score": 0.673622727394104, "sibling_score": 0.673622727394104, "answer_score": null, "sibling_qid": "MUM-2025-11-2486-Q004", "sibling_text": "screw compressor clearances after overhauling", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Valves, clearances, oil carry-over, refrigerant-in-oil, frosting, tandem valves, cooling — fault checks", "cross_family": true } ] }, { "qid": "KOL-2022-12-3586-Q005", "text": "Deaerating", "family": "Boilers - Construction & Components", "subtopic": "Deaerator", "tid": "KOL-2022-12-3586", "tray": "new", "candidates": [ { "answer_id": "AIR-REF-004", "score": 0.5392165780067444, "sibling_score": 0.5392165780067444, "answer_score": null, "sibling_qid": "MUM-2024-07-1085-Q008", "sibling_text": "how you remove air", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "4. Detecting and purging air from a refrigeration system", "cross_family": true }, { "answer_id": "COT-P02-12", "score": 0.510209321975708, "sibling_score": 0.510209321975708, "answer_score": null, "sibling_qid": "KOC-2026-09-2176-Q001", "sibling_text": "purging and gas freeing", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Explain and distinguish cargo-tank inerting, purging, gas freeing and ventilation, including dilution/displacement methods, atmosphere targets and cargo-pump precautions.", "cross_family": true }, { "answer_id": "AEDEC-291-003", "score": 0.49816402792930603, "sibling_score": 0.49816402792930603, "answer_score": null, "sibling_qid": "KOL-2020-01-3309-Q001", "sibling_text": "ae decarb checks", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "3. Pre-start checks after decarb / recommissioning", "cross_family": true } ] }, { "qid": "KOL-2023-01-0712-Q002", "text": "DMLC Part 2", "family": "MLC", "subtopic": "MLC / DMLC / Work-Rest", "tid": "KOL-2023-01-0712", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.6392291188240051, "sibling_score": 0.6392291188240051, "answer_score": 0.2784804195165634, "sibling_qid": "MUM-2026-04-0877-Q003", "sibling_text": "dmlc 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "DCP-PPC-003", "score": 0.23459244519472122, "sibling_score": null, "answer_score": 0.23459244519472122, "sibling_qid": "", "sibling_text": "c3 dcp general working advantages disadvantages common issues", "sibling_family": "", "via": "answer_title", "answer_title": "C3 — DCP — General Working, Advantages, Disadvantages & Common Issues", "cross_family": false }, { "answer_id": "SEA-CHEST-006", "score": 0.22366339564323426, "sibling_score": null, "answer_score": 0.22366339564323426, "sibling_qid": "", "sibling_text": "2 e actions leak crack fouling stuck valve valve life", "sibling_family": "", "via": "answer_title", "answer_title": "2/E actions: leak, crack, fouling, stuck valve, valve-life", "cross_family": false } ] }, { "qid": "KOL-2023-01-1721-Q002", "text": "Turbocharger clearance and shock absorber in turbocharger", "family": "Turbocharger", "subtopic": "TC Clearances / Inspection", "tid": "KOL-2023-01-1721", "tray": "review", "candidates": [ { "answer_id": "SHRD-440-002", "score": 0.6951804757118225, "sibling_score": 0.6951804757118225, "answer_score": null, "sibling_qid": "KOL-2024-05-3688-Q003", "sibling_text": "turbocharger shroud ring clearance and few cross", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "How is shroud ring clearance checked — access point and procedure?", "cross_family": false }, { "answer_id": "TC-KLM-330-001", "score": 0.6873422861099243, "sibling_score": 0.6873422861099243, "answer_score": 0.4869667708873749, "sibling_qid": "KOL-2026-05-4242-Q004", "sibling_text": "all clearances in turbo charger", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "What are turbocharger K, L and M clearances, and how is each one derived?", "cross_family": false }, { "answer_id": "TURBO-CS-P03-006", "score": 0.6693875193595886, "sibling_score": 0.6693875193595886, "answer_score": 0.5210260152816772, "sibling_qid": "KOL-2020-01-3314-Q005", "sibling_text": "main engine turbocharger clearances", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharger clearances: axial float, radial, K/L/M, effects", "cross_family": false } ] }, { "qid": "KOL-2023-01-2634-Q006", "text": "pintle bearing and how to take clearance", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2023-01-2634", "tray": "new", "candidates": [ { "answer_id": "BCL-592-002", "score": 0.6202331185340881, "sibling_score": 0.6202331185340881, "answer_score": null, "sibling_qid": "MUM-2026-02-2926-Q005", "sibling_text": "m e bearing clearance how to take", "sibling_family": "2-Stroke - 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Deck isolating valve, deck relief/safety devices, and cargo-tank pressure", "cross_family": false } ] }, { "qid": "KOL-2023-01-2634-Q009", "text": "bearing bedding requirements and criteria", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Bearing Clearance", "tid": "KOL-2023-01-2634", "tray": "review", "candidates": [ { "answer_id": "WMAT-170-005", "score": 0.6927526593208313, "sibling_score": 0.6927526593208313, "answer_score": 0.48013944923877716, "sibling_qid": "KOL-2024-03-1775-Q009", "sibling_text": "procedure of bedding of bearing all", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bearing bedding and seating / contact assessment", "cross_family": false }, { "answer_id": "MN-BRG-C-002", "score": 0.6686627864837646, "sibling_score": 0.6686627864837646, "answer_score": 0.43560609221458435, "sibling_qid": "KOL-2019-11-3286-Q001", "sibling_text": "bedding of bearing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bedding, contact check and fitting of shells", "cross_family": false }, { "answer_id": "BEB-C-003", "score": 0.6308022141456604, "sibling_score": 0.6308022141456604, "answer_score": 0.42671482264995575, "sibling_qid": "KOL-2019-07-1464-Q003", "sibling_text": "bedding of bottom end bearing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bedding / contact check of a bottom end bearing — and the use of blue", "cross_family": false } ] }, { "qid": "KOL-2023-01-2635-Q001", "text": "Alternator inside safeties", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator Protection", "tid": "KOL-2023-01-2635", "tray": "review", "candidates": [ { "answer_id": "ALT-GEN-P01-001", "score": 0.7057569622993469, "sibling_score": 0.7057569622993469, "answer_score": 0.4760967195034027, "sibling_qid": "KOC-2025-05-1537-Q003", "sibling_text": "alternator safeties mounted on alternator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. 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Explain in ship construction terms.", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2023-02-0716", "tray": "review", "candidates": [ { "answer_id": "TRS-002", "score": 0.6933833360671997, "sibling_score": 0.6933833360671997, "answer_score": 0.5232924669981003, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.6423208117485046, "sibling_score": 0.6423208117485046, "answer_score": null, "sibling_qid": "MUM-2026-06-3584-Q005", "sibling_text": "what takes weight of rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "DUS-P5-03", "score": 0.6384048461914062, "sibling_score": 0.6384048461914062, "answer_score": 0.5563771903514861, "sibling_qid": "KOC-2024-12-2058-Q002", "sibling_text": "draw aft portion of the ship without propeller and rudder in it show the rudder axis which pass through the structure", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Stern frame construction, cross-section and rudder-axis sketch", "cross_family": true } ] }, { "qid": "KOL-2023-02-0718-Q005", "text": "MLC ,its title, as a second engineer which title is your concern", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOL-2023-02-0718", "tray": "new", "candidates": [ { "answer_id": "ISM-2E-C-001", "score": 0.5828510522842407, "sibling_score": 0.5828510522842407, "answer_score": 0.43965814411640164, "sibling_qid": "KOC-2024-01-0274-Q006", "sibling_text": "ism survey as second engineer other than documentation and machinery", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM audit / survey preparation as Second Engineer — beyond the paperwork", "cross_family": true }, { "answer_id": "ISM-2E-A-002", "score": 0.5714149475097656, "sibling_score": 0.5714149475097656, "answer_score": null, "sibling_qid": "CHE-2026-05-0586-Q015", "sibling_text": "ism survey as second engineer", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "How a Second Engineer prepares for an ISM audit or survey", "cross_family": true }, { "answer_id": "ISM-AUDIT-P01-001", "score": 0.5710238218307495, "sibling_score": 0.5710238218307495, "answer_score": null, "sibling_qid": "CHE-2025-08-0031-Q016", "sibling_text": "ism survey as second engineer", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Preparing engine room, records and documents for ISM/SMS audit (2/E)", "cross_family": true } ] }, { "qid": "KOL-2023-02-0719-Q005", "text": "As a 2/E what all things your will take care of complying MLC 2006 ?", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOL-2023-02-0719", "tray": "new", "candidates": [ { "answer_id": "IAPP-595-001", "score": 0.42414000630378723, "sibling_score": 0.42414000630378723, "answer_score": null, "sibling_qid": "MUM-2026-02-0754-Q005", "sibling_text": "annex 6 how will u ensure complying and what all certificates as 2e", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "You have an IAPP survey tomorrow. What preparation do you do, what will the surveyor check, and what documents and certificates will you show him?", "cross_family": true }, { "answer_id": "MLC-WRH-B-007", "score": 0.42020535469055176, "sibling_score": 0.42020535469055176, "answer_score": null, "sibling_qid": "MUM-2026-02-0734-Q007", "sibling_text": "mlc 2006 detainable deficiency", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false }, { "answer_id": "MLC-WRH-B-004", "score": 0.4045291543006897, "sibling_score": 0.4045291543006897, "answer_score": null, "sibling_qid": "KOC-2022-01-0051-Q006", "sibling_text": "young seafarer as 2e what to ensure explained him about the mlc work and rest hours and also the night work criteria as second eng will not allow young seafarer to do critical jobs alone", "sibling_family": "MLC", "via": "sibling", "answer_title": "Young seafarers — minimum age, night work, and what the 2/E must ensure", "cross_family": false } ] }, { "qid": "KOL-2023-02-0720-Q005", "text": "UN number", "family": "Other Conventions", "subtopic": "IMDG Code", "tid": "KOL-2023-02-0720", "tray": "new", "candidates": [ { "answer_id": "IMDG-003", "score": 0.6497980952262878, "sibling_score": 0.6497980952262878, "answer_score": 0.3243568271398544, "sibling_qid": "KOC-2024-01-0265-Q007", "sibling_text": "what is un number hex number", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is a UN number and a Proper Shipping Name? 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Alternator/generator safeties and protection trips", "cross_family": false }, { "answer_id": "OC-UV-TRIP-006", "score": 0.5684869378805161, "sibling_score": null, "answer_score": 0.5684869378805161, "sibling_qid": "", "sibling_text": "trip settings and combined overcurrent undervoltage protection alternator context alternator protection is a suite overcurrent short circuit ansi 50 51 reverse power 32 under voltage 27 over under frequency 81 earth fault 50n 51n and differential 87 on larger machines reverse power trips to prevent the alternator motoring when its prime mover loses drive protects the engine and the bus", "sibling_family": "", "via": "answer_title", "answer_title": "Trip settings and combined overcurrent / undervoltage protection — alternator context", "cross_family": false }, { "answer_id": "ALT-MTN-B-001", "score": 0.5456513792276382, "sibling_score": null, "answer_score": 0.5456513792276382, "sibling_qid": "", "sibling_text": "routine onboard alternator maintenance checks clean air path dry low pressure air blow through cooler and filters clear keep winding temperature in band insulation resistance to earth on a megger trended over time investigate a falling trend do not wait for the alarm", "sibling_family": "", "via": "answer_title", "answer_title": "Routine onboard alternator maintenance checks", "cross_family": false } ] }, { "qid": "KOL-2023-03-2642-Q001", "text": "EXi(a) and EXi(b)", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOL-2023-03-2642", "tray": "new", "candidates": [ { "answer_id": "EXD-EXI-A-001", "score": 0.556647777557373, "sibling_score": 0.556647777557373, "answer_score": null, "sibling_qid": "CHE-2026-02-0335-Q007", "sibling_text": "exi and exd", "sibling_family": "", "via": "sibling", "answer_title": "Ex i (intrinsically safe) vs Ex d (flameproof / explosion-proof) — the difference", "cross_family": false }, { "answer_id": "EXD-EXI-A-002", "score": 0.5398162603378296, "sibling_score": 0.5398162603378296, "answer_score": null, "sibling_qid": "KOC-2024-10-1417-Q003", "sibling_text": "exi exd", "sibling_family": "", "via": "sibling", "answer_title": "Ex d (flameproof / explosion-proof) — construction, shipboard applications and maintenance", "cross_family": false }, { "answer_id": "EECS-003", "score": 0.5149489641189575, "sibling_score": 0.5149489641189575, "answer_score": null, "sibling_qid": "KOC-2026-08-2156-Q002", "sibling_text": "eexi and cii", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "03. 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Testing diodes and transistors with a multimeter", "cross_family": false }, { "answer_id": "EPC-P02-01", "score": 0.6241849064826965, "sibling_score": 0.6241849064826965, "answer_score": null, "sibling_qid": "KOL-2022-08-2593-Q004", "sibling_text": "what is zener diode how diode test onboard", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a zener diode? Draw its symbol, explain its working principle, and draw and explain its characteristic curve including the zener (breakdown) voltage.", "cross_family": false } ] }, { "qid": "KOL-2023-03-3594-Q003", "text": "Safety valve setting. Gaging method?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2023-03-3594", "tray": "review", "candidates": [ { "answer_id": "ECON-EGB-004", "score": 0.7578242421150208, "sibling_score": 0.7578242421150208, "answer_score": 0.5826481193304062, "sibling_qid": "CHE-2026-05-0601-Q010", "sibling_text": "safety valve setting procedure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Safety-valve setting after overhaul & why set higher than the boiler", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.7564476132392883, "sibling_score": 0.7564476132392883, "answer_score": null, "sibling_qid": "KOC-2026-05-2142-Q008", "sibling_text": "safety valve setting in front of surveyor", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.7454665303230286, "sibling_score": 0.7454665303230286, "answer_score": null, "sibling_qid": "MUM-2026-02-1255-Q006", "sibling_text": "setting of safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false } ] }, { "qid": "KOL-2023-03-3595-Q006", "text": "How to measure pintle bearing clearance.\tExplain complete", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2023-03-3595", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.6800156831741333, "sibling_score": 0.6800156831741333, "answer_score": null, "sibling_qid": "MUM-2026-06-3469-Q003", "sibling_text": "pintle clearance checking measurement", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": true }, { "answer_id": "CRKPIN-P02-002", "score": 0.6535437107086182, "sibling_score": 0.6535437107086182, "answer_score": 0.554498165845871, "sibling_qid": "KOL-2024-07-1949-Q004", "sibling_text": "crankpin bearing how to measure clearance", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankpin bearing clearance — measurement and interpretation", "cross_family": true }, { "answer_id": "BEB-B-002", "score": 0.6423043012619019, "sibling_score": 0.6423043012619019, "answer_score": 0.5518083661794663, "sibling_qid": "KOC-2024-11-1876-Q001", "sibling_text": "measuring bttm end bearing clearance", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bottom End Bearing — Clearance Measurement", "cross_family": true } ] }, { "qid": "KOL-2023-03-3596-Q004", "text": "Accommodation ac working but everybody is feeling uncomfortable and itching. What may be the cause of it ? As a 2/E what action you will take ?", "family": "Refrigeration & AC", "subtopic": "Humidity", "tid": "KOL-2023-03-3596", "tray": "new", "candidates": [ { "answer_id": "HUM-334-002", "score": 0.6370026469230652, "sibling_score": 0.6370026469230652, "answer_score": 0.46671385765075685, "sibling_qid": "KOL-2016-07-1227-Q004", "sibling_text": "ac giving air with high humidity wat will u do", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "What action do you take when the AC delivers humid air, or the vessel is in a tropical / high-humidity climate?", "cross_family": false }, { "answer_id": "REFR-FLT-005", "score": 0.6201439499855042, "sibling_score": 0.6201439499855042, "answer_score": 0.48066407442092896, "sibling_qid": "KOL-2019-11-1495-Q003", "sibling_text": "bacteria in ac system cause and remedy", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Air-conditioning system: suspected bacteria or contamination", "cross_family": false }, { "answer_id": "RAC-MAT-320-002", "score": 0.6131212115287781, "sibling_score": 0.6131212115287781, "answer_score": null, "sibling_qid": "MUM-2026-02-2581-Q005", "sibling_text": "accomodation ac temp not developing", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "2. Accommodation / passenger AC — holding temperature and \"cooling not developing\"", "cross_family": false } ] }, { "qid": "KOL-2023-03-4020-Q001", "text": "Int- Akc Ext-Banerjee Motor What type of engine", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOL-2023-03-4020", "tray": "new", "candidates": [ { "answer_id": "MCC-MEB-P01-001", "score": 0.5653408765792847, "sibling_score": 0.5653408765792847, "answer_score": null, "sibling_qid": "MUM-2026-01-1242-Q004", "sibling_text": "type of engine mcc engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "MC-C (\"Compact\") engine — design and the main constructional differences from MC", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.5605723261833191, "sibling_score": 0.5605723261833191, "answer_score": 0.39879625141620634, "sibling_qid": "MUM-2026-05-3259-Q007", "sibling_text": "ae engine make and type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false }, { "answer_id": "ETP-344-P03-001", "score": 0.5480281114578247, "sibling_score": 0.5480281114578247, "answer_score": null, "sibling_qid": "KOL-2026-03-2048-Q001", "sibling_text": "type of engine done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false } ] }, { "qid": "KOL-2023-04-0735-Q001", "text": "Internal : Shishir External : Bhaumick Type of vessel sailed,", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2023-04-0735", "tray": "new", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.6002458333969116, "sibling_score": 0.6002458333969116, "answer_score": null, "sibling_qid": "CHE-2026-02-0478-Q004", "sibling_text": "this type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.5994812846183777, "sibling_score": 0.5994812846183777, "answer_score": null, "sibling_qid": "MUM-2026-06-3384-Q001", "sibling_text": "type of vessel", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.5993978977203369, "sibling_score": 0.5993978977203369, "answer_score": null, "sibling_qid": "CHE-2026-03-0255-Q001", "sibling_text": "type of vessel and engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "KOL-2023-04-0742-Q002", "text": "stake holder", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOL-2023-04-0742", "tray": "new", "candidates": [ { "answer_id": "SHELL-PLT-B-003", "score": 0.43416160345077515, "sibling_score": 0.43416160345077515, "answer_score": null, "sibling_qid": "KOL-2017-07-0099-Q002", "sibling_text": "garboard stake", "sibling_family": "", "via": "sibling", "answer_title": "Garboard and bilge strakes", "cross_family": false }, { "answer_id": "ANCH-CHN-A-001", "score": 0.42818158864974976, "sibling_score": 0.42818158864974976, "answer_score": null, "sibling_qid": "KOL-2018-01-0143-Q003", "sibling_text": "stock anchor use nd advantage", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Types of anchor & holding characteristics", "cross_family": true }, { "answer_id": "ISM-DPA-001", "score": 0.4222102761268616, "sibling_score": 0.4222102761268616, "answer_score": 0.2658380925655365, "sibling_qid": "MUM-2023-03-2725-Q005", "sibling_text": "dpa and his responsibility", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Role, duties and responsibility of the Designated Person Ashore (DPA)", "cross_family": false } ] }, { "qid": "KOL-2023-04-0742-Q003", "text": "DMLC", "family": "MLC", "subtopic": "MLC / DMLC / Work-Rest", "tid": "KOL-2023-04-0742", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.7625060677528381, "sibling_score": 0.7625060677528381, "answer_score": 0.3292631238698959, "sibling_qid": "MUM-2026-03-0817-Q002", "sibling_text": "dmlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "DCP-PPC-003", "score": 0.3122547298669815, "sibling_score": null, "answer_score": 0.3122547298669815, "sibling_qid": "", "sibling_text": "c3 dcp general working advantages disadvantages common issues", "sibling_family": "", "via": "answer_title", "answer_title": "C3 — DCP — General Working, Advantages, Disadvantages & Common Issues", "cross_family": false }, { "answer_id": "ENG-NOM-006", "score": 0.2822224587202072, "sibling_score": null, "answer_score": 0.2822224587202072, "sibling_qid": "", "sibling_text": "short form asks smc c lmc and me vs mc quickly smc c super long stroke man programme camshaft controlled compact lmc l long stroke the l is the stroke letter not a control or compact letter", "sibling_family": "", "via": "answer_title", "answer_title": "Short-form asks: SMC-C, LMC, and ME vs MC quickly", "cross_family": false } ] }, { "qid": "KOL-2023-04-0743-Q003", "text": "What is diffrence between ism and iso?", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOL-2023-04-0743", "tray": "review", "candidates": [ { "answer_id": "WIDAS-SMK-007", "score": 0.6901310086250305, "sibling_score": 0.6901310086250305, "answer_score": null, "sibling_qid": "MUM-2026-03-0855-Q003", "sibling_text": "diff between iso ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Smoke sampling line — testing, confirming clear, and what is in the tube", "cross_family": false }, { "answer_id": "ISM-AUD-P02-002", "score": 0.5472451448440552, "sibling_score": 0.5472451448440552, "answer_score": null, "sibling_qid": "MUM-2025-10-0519-Q004", "sibling_text": "what is ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM Code — what it is, purpose, objectives and structure", "cross_family": false }, { "answer_id": "ISM-DPA-002", "score": 0.536091685295105, "sibling_score": 0.536091685295105, "answer_score": null, "sibling_qid": "KOC-2023-03-0172-Q004", "sibling_text": "ism who is responsible for ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "DPA basis : which convention, which code, and who is responsible for ISM", "cross_family": false } ] }, { "qid": "KOL-2023-04-1929-Q003", "text": "Improved High lift and Ordinary Safety valve difference", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2023-04-1929", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.781358003616333, "sibling_score": 0.781358003616333, "answer_score": null, "sibling_qid": "MUM-2026-06-3418-Q008", "sibling_text": "constructional diff between high lift and improved high lift safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACRV-005", "score": 0.7150250673294067, "sibling_score": 0.7150250673294067, "answer_score": 0.46638965904712676, "sibling_qid": "MUM-2026-06-3429-Q010", "sibling_text": "safety valve lift difference", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-003", "score": 0.45524951815605164, "sibling_score": null, "answer_score": 0.45524951815605164, "sibling_qid": "", "sibling_text": "the accumulation test and the safety valve required lift how lift and capacity are verified and why accumulation must stay inside the limit popping test proves setting accumulation test proves installed relieving capacity not two versions of one test sizing the class discharge formula sizes the aggregate valve area from the maker s specified peak evaporation using a constant for the valve type", "sibling_family": "", "via": "answer_title", "answer_title": "The accumulation test and the safety valve — required lift, how lift and capacity are verified, and why accumulation must stay inside the limit", "cross_family": false } ] }, { "qid": "KOL-2023-04-2646-Q002", "text": "Showed a circuit diagram and told to identify the starter. Asked many cross questions( was not able to satisfy)", "family": "Electrical - Motors & Starters", "subtopic": "Starter Panel / Control Circuit", "tid": "KOL-2023-04-2646", "tray": "review", "candidates": [ { "answer_id": "SDST-A-001", "score": 0.7990596890449524, "sibling_score": 0.7990596890449524, "answer_score": null, "sibling_qid": "KOL-2023-04-2646-Q007", "sibling_text": "again showed the same circuit diagram and asked to draw star delta starter was unable to draw properly internal again took safety oral", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false }, { "answer_id": "REV-MOT-BF67-003", "score": 0.7685423493385315, "sibling_score": 0.7685423493385315, "answer_score": null, "sibling_qid": "KOC-2021-07-1139-Q008", "sibling_text": "he showed a circuit diagram and asked to identify the starter used it was a exh vent fan circuit having dol starter he showed me the contacts for reversing direction and asked why it is used", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw the reversing circuit, and where is motor reversing applied on board?", "cross_family": false }, { "answer_id": "IMSP-004", "score": 0.7233136296272278, "sibling_score": 0.7233136296272278, "answer_score": null, "sibling_qid": "MUM-2026-04-2098-Q004", "sibling_text": "star delta starter components didn t ask anymore", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Explain the star-delta starter, and what you find inside it when you open it — its components.", "cross_family": false } ] }, { "qid": "KOL-2023-04-2649-Q003", "text": "Show simple pneumatic valve.and he was not satisfied properly but he said that I will count this answer.", "family": "Steering Gear & Hydraulics", "subtopic": "Hydraulic Valves", "tid": "KOL-2023-04-2649", "tray": "review", "candidates": [ { "answer_id": "EXV-P02-002", "score": 0.7321411371231079, "sibling_score": 0.7321411371231079, "answer_score": null, "sibling_qid": "KOL-2026-02-2964-Q005", "sibling_text": "draw 2 way pneumatic valve with vent", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Seat/spindle grinding, templates, clearances (G1·G2·G3·F1) and seating-angle checks", "cross_family": false }, { "answer_id": "AUC-P03-04", "score": 0.6799060702323914, "sibling_score": 0.6799060702323914, "answer_score": 0.5110718667507171, "sibling_qid": "KOC-2025-12-1078-Q009", "sibling_text": "what is valve historisis pneumatic valve", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Control-valve positioner — function and calibration of a pneumatic actuator/positioner", "cross_family": true }, { "answer_id": "CO2-SYS-006", "score": 0.6576836705207825, "sibling_score": 0.6576836705207825, "answer_score": null, "sibling_qid": "KOL-2020-06-0415-Q004", "sibling_text": "co2 valve he doesn t accept piston type of valve he only wants to listen about old type of valve with piercing arrangement", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 bottles, manifolds, pilot cylinders and valve components", "cross_family": true } ] }, { "qid": "KOL-2023-04-2650-Q003", "text": "What are Alternator safeties that are inside the alternator", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator Protection", "tid": "KOL-2023-04-2650", "tray": "review", "candidates": [ { "answer_id": "ALT-GEN-P01-001", "score": 0.8072174191474915, "sibling_score": 0.8072174191474915, "answer_score": 0.5674069344997406, "sibling_qid": "KOL-2026-01-2950-Q002", "sibling_text": "alternator internal safeties", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Alternator/generator safeties and protection trips", "cross_family": false }, { "answer_id": "SHAFT-GEN-005", "score": 0.5344732403755188, "sibling_score": null, "answer_score": 0.5344732403755188, "sibling_qid": "", "sibling_text": "safeties provided for a shaft generator standard alternator protections over current short circuit over under voltage over under frequency reverse power paralleled earth fault and preferential load shedding trips sg specific interlocks breaker closes only when synchronised clutch gear engagement interlocks", "sibling_family": "", "via": "answer_title", "answer_title": "Safeties provided for a shaft generator", "cross_family": false }, { "answer_id": "EMG-DG-P04-004", "score": 0.48498672246932983, "sibling_score": null, "answer_score": 0.48498672246932983, "sibling_qid": "", "sibling_text": "safeties trips protections failure to start come on load protection philosophy minimal by design losing emergency power is worse than running the set hard so non critical trips are often alarm only overridden in emergency mode maker and flag dependent typically fitted short circuit overload breaker overspeed low lo pressure sometimes high cooling water temp reverse power only where it can parallel", "sibling_family": "", "via": "answer_title", "answer_title": "Safeties, trips, protections & failure to start / come on load", "cross_family": false } ] }, { "qid": "KOL-2023-04-3604-Q004", "text": "Main Engine bottom end main bearing bottom inspection procedure", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Main Bearing", "tid": "KOL-2023-04-3604", "tray": "review", "candidates": [ { "answer_id": "BEB-B-001", "score": 0.8268559575080872, "sibling_score": 0.8268559575080872, "answer_score": null, "sibling_qid": "MUM-2026-07-3718-Q008", "sibling_text": "procedure for main engine bottom end bearing checking", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bottom End Bearing — Survey & Inspection", "cross_family": false }, { "answer_id": "BEB-A-001", "score": 0.8094103932380676, "sibling_score": 0.8094103932380676, "answer_score": 0.5889456987380981, "sibling_qid": "KOL-2023-04-3604-Q003", "sibling_text": "main engine bottom end bearing opening up procedure for survey", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Removing, overhauling, inspecting and refitting the bottom end bearing", "cross_family": false }, { "answer_id": "MN-BRG-C-001", "score": 0.7696914076805115, "sibling_score": 0.7696914076805115, "answer_score": null, "sibling_qid": "MUM-2026-09-3895-Q003", "sibling_text": "main engine main bearing bottom shell removing procedure", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Opening, removing and overhauling a main bearing", "cross_family": false } ] }, { "qid": "KOL-2023-04-3605-Q004", "text": "Boiler safety valve setting 4. Srinivasan", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2023-04-3605", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-001", "score": 0.7061458826065063, "sibling_score": 0.7061458826065063, "answer_score": null, "sibling_qid": "CHE-2026-04-0500-Q005", "sibling_text": "boiler safety valve setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.6858463883399963, "sibling_score": 0.6858463883399963, "answer_score": null, "sibling_qid": "KOC-2026-05-0034-Q010", "sibling_text": "boiler safety valve types and how safety valve is set complete procedures", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.685799777507782, "sibling_score": 0.685799777507782, "answer_score": null, "sibling_qid": "CHE-2026-05-0568-Q013", "sibling_text": "boiler safety valve how you confirm the proper setting of safety valve engineer observation", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false } ] }, { "qid": "KOL-2023-04-3607-Q002", "text": "Air inside refrigeration system indication and how to removed", "family": "Refrigeration & AC", "subtopic": "Air in System", "tid": "KOL-2023-04-3607", "tray": "review", "candidates": [ { "answer_id": "AIR-REF-001", "score": 0.8119349479675293, "sibling_score": 0.8119349479675293, "answer_score": 0.5798432111740112, "sibling_qid": "MUM-2026-06-3559-Q004", "sibling_text": "air in refrigeration system indication removal process", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "1. Indications that air is present in a refrigeration system", "cross_family": false }, { "answer_id": "AIR-REF-004", "score": 0.777722954750061, "sibling_score": 0.777722954750061, "answer_score": 0.5590778321027755, "sibling_qid": "MUM-2023-08-2190-Q002", "sibling_text": "air in refrigeration system indication and how to remove", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "4. Detecting and purging air from a refrigeration system", "cross_family": false }, { "answer_id": "AIR-REF-005", "score": 0.7491641640663147, "sibling_score": 0.7491641640663147, "answer_score": 0.596122145652771, "sibling_qid": "KOC-2026-05-0003-Q006", "sibling_text": "symptoms of air in the refrigeration system and procedure for removing air using recovery unit", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "5. Removing air using a recovery / purge unit", "cross_family": false } ] }, { "qid": "KOL-2023-04-3607-Q004", "text": "Jacket water test in cooling system 4b : Pass 6 : Repeat", "family": "Heat Exchangers & Coolers", "subtopic": "JCW System", "tid": "KOL-2023-04-3607", "tray": "new", "candidates": [ { "answer_id": "JCW-SYS-003", "score": 0.539533257484436, "sibling_score": 0.539533257484436, "answer_score": 0.4308329403400421, "sibling_qid": "MUM-2025-12-1222-Q007", "sibling_text": "jacket water temp rising from 70 to 75 actions", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "ME jacket-water temperature is rising on all units and will not hold setpoint - reasons, your actions as 2/E, and telling which side of the cooler is leaking", "cross_family": false }, { "answer_id": "ACJCW-008", "score": 0.524613618850708, "sibling_score": 0.524613618850708, "answer_score": null, "sibling_qid": "KOL-2022-04-1916-Q003", "sibling_text": "shell and tube type cooler leak detection check accepted tell tale hole check what is inside the tube and what is outside the tube why expansion arrangement sealing material no of seals", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Shell-and-tube cooler: leak detection, tube-side flow, expansion and sealing", "cross_family": false }, { "answer_id": "JCW-SYS-004", "score": 0.511249840259552, "sibling_score": 0.511249840259552, "answer_score": null, "sibling_qid": "KOL-2017-10-1328-Q004", "sibling_text": "jacket water treatment why done", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Why jacket water is treated - chemicals used, what Rocor NB stands for, the nitrite level maintained, and removing scale", "cross_family": false } ] }, { "qid": "KOL-2023-05-0745-Q001", "text": "What is solid ballast ?", "family": "", "subtopic": "GM / KM / KB / Metacentric", "tid": "KOL-2023-05-0745", "tray": "new", "candidates": [ { "answer_id": "BWM-D1D2-P03-001", "score": 0.4923762381076813, "sibling_score": 0.4923762381076813, "answer_score": null, "sibling_qid": "KOC-2022-09-0099-Q007", "sibling_text": "ballast d2 standard", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Regulation D-2 — ballast water performance / discharge standardHigh", "cross_family": false }, { "answer_id": "COT-14", "score": 0.47323372960090637, "sibling_score": 0.47323372960090637, "answer_score": null, "sibling_qid": "KOL-2026-07-4253-Q003", "sibling_text": "segregated ballast and and capacity", "sibling_family": "Ship Construction", "via": "sibling", "answer_title": "SBT applicability, capacity and draught criteria", "cross_family": false }, { "answer_id": "COT-13", "score": 0.4539370834827423, "sibling_score": 0.4539370834827423, "answer_score": 0.3159434199333191, "sibling_qid": "KOL-2023-09-0766-Q002", "sibling_text": "open ballast", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Segregated, clean, dedicated and open ballast", "cross_family": false } ] }, { "qid": "KOL-2023-05-1739-Q005", "text": "REFFER PLANT safety.explain", "family": "Refrigeration & AC", "subtopic": "Refer Safety", "tid": "KOL-2023-05-1739", "tray": "new", "candidates": [ { "answer_id": "REEF-SAFE-001", "score": 0.6082233190536499, "sibling_score": 0.6082233190536499, "answer_score": 0.44796931147575375, "sibling_qid": "CHE-2025-12-0225-Q005", "sibling_text": "refer safeties", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Refrigeration plant and reefer-room safeties — what protects the machinery, and what protects the man?", "cross_family": false }, { "answer_id": "REEF-COMP-001", "score": 0.5734229683876038, "sibling_score": 0.5734229683876038, "answer_score": 0.3898611068725586, "sibling_qid": "KOC-2026-01-1990-Q005", "sibling_text": "ref compressor safeties", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Reefer/AC compressor safeties and cut-outs — safety valve, HP and LP cut-outs", "cross_family": false }, { "answer_id": "PR-SAFE-A-002", "score": 0.5123813152313232, "sibling_score": 0.5123813152313232, "answer_score": null, "sibling_qid": "CHE-2026-09-3904-Q001", "sibling_text": "pump room safeties need to explain each and everything like fixed gas detector means what all gas", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Pump-room fixed gas detection and atmosphere monitoring", "cross_family": true } ] }, { "qid": "KOL-2023-05-1739-Q009", "text": "How to increase power to weight ratio", "family": "Diesel Engines - General", "subtopic": "V-Type Engine / Power-to-Weight", "tid": "KOL-2023-05-1739", "tray": "review", "candidates": [ { "answer_id": "SB-RATIO-007", "score": 0.6860533952713013, "sibling_score": 0.6860533952713013, "answer_score": null, "sibling_qid": "MUM-2025-07-1139-Q005", "sibling_text": "how power to weight increased", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Development from L-MC to S-MC engines, from the strength-of-material aspect, and how the power-to-weight ratio was increased", "cross_family": true }, { "answer_id": "ETP-344-P01-011", "score": 0.606360912322998, "sibling_score": 0.606360912322998, "answer_score": 0.49687983095645905, "sibling_qid": "KOL-2025-12-4078-Q002", "sibling_text": "what is power to weight ratio", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Power-to-weight ratio", "cross_family": true }, { "answer_id": "MCC-MEB-P01-001", "score": 0.5893502235412598, "sibling_score": 0.5893502235412598, "answer_score": null, "sibling_qid": "KOL-2025-07-1812-Q003", "sibling_text": "mc mcc how power to weight ratio varies", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "MC-C (\"Compact\") engine — design and the main constructional differences from MC", "cross_family": true } ] }, { "qid": "KOL-2023-05-1930-Q001", "text": "What engine you worked on, what type", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOL-2023-05-1930", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.7252641916275024, "sibling_score": 0.7252641916275024, "answer_score": null, "sibling_qid": "KOL-2026-05-4244-Q002", "sibling_text": "engines you have worked on", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.6951164603233337, "sibling_score": 0.6951164603233337, "answer_score": null, "sibling_qid": "CHE-2026-04-0506-Q003", "sibling_text": "types of engine you worked specifications of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false }, { "answer_id": "MCC-MEB-P01-001", "score": 0.6932446360588074, "sibling_score": 0.6932446360588074, "answer_score": null, "sibling_qid": "MUM-2026-09-3997-Q002", "sibling_text": "type of engine worked me mcc me b and rta", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "MC-C (\"Compact\") engine — design and the main constructional differences from MC", "cross_family": false } ] }, { "qid": "KOL-2023-05-1932-Q003", "text": "Bore cooling of cylinder liner...describe flow arrangment.", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "KOL-2023-05-1932", "tray": "new", "candidates": [ { "answer_id": "PC-TP-003", "score": 0.6378290057182312, "sibling_score": 0.6378290057182312, "answer_score": 0.47680327892303465, "sibling_qid": "KOC-2023-07-0925-Q009", "sibling_text": "how piston crown cooling taking place lube circuit from telescopic pipe where it return back", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston crown cooling oil circuit and where the oil returns", "cross_family": false }, { "answer_id": "CYL-LINER-P01-001", "score": 0.6046088337898254, "sibling_score": 0.6046088337898254, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001S4", "sibling_text": "liner cooling liner calibration", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Carrying out main-engine liner calibration (gauging)", "cross_family": false }, { "answer_id": "BLR-TUBE-P01-002", "score": 0.5682597756385803, "sibling_score": 0.5682597756385803, "answer_score": null, "sibling_qid": "MUM-2025-09-2832-Q003", "sibling_text": "construction of tube type cooled straight tubes only", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "03. Types, functions and arrangement of boiler tubes", "cross_family": true } ] }, { "qid": "KOL-2023-05-2653-Q001", "text": "Gyroscope", "family": "Navigation & Bridge Equipment", "subtopic": "Gyro Compass / Gyroscope", "tid": "KOL-2023-05-2653", "tray": "new", "candidates": [ { "answer_id": "BK-002", "score": 0.5575718879699707, "sibling_score": 0.5575718879699707, "answer_score": null, "sibling_qid": "KOC-2026-03-0880-Q006", "sibling_text": "period of roll equation radius of gyration relation and what is g", "sibling_family": "", "via": "sibling", "answer_title": "How does a bilge keel reduce rolling, and how does it relate to roll period and radius of gyration?", "cross_family": false }, { "answer_id": "STAB-D-001", "score": 0.5279208421707153, "sibling_score": 0.5279208421707153, "answer_score": null, "sibling_qid": "KOC-2025-10-0667-Q003", "sibling_text": "angle of gyration", "sibling_family": "", "via": "sibling", "answer_title": "General Ship Stability - How I Open Any Stability Question", "cross_family": false }, { "answer_id": "STAB-GZ-P03-002", "score": 0.5074860453605652, "sibling_score": 0.5074860453605652, "answer_score": null, "sibling_qid": "KOC-2025-04-0587-Q005", "sibling_text": "gz curve righting lever", "sibling_family": "", "via": "sibling", "answer_title": "The righting lever GZ and the righting moment — the two forces that form the couple", "cross_family": false } ] }, { "qid": "KOL-2023-05-2657-Q001", "text": "Brushless excitation working Advantage of it.cooling of stator and rotor how? Avr functioning, which part of AVR is controlling excitation, function of resistor in AVR circuit.", "family": "Electrical - Generator & Alternator", "subtopic": "Brushless Alternator", "tid": "KOL-2023-05-2657", "tray": "review", "candidates": [ { "answer_id": "AVR-EXC-B-001", "score": 0.704977810382843, "sibling_score": 0.704977810382843, "answer_score": null, "sibling_qid": "KOC-2024-10-1422-Q006", "sibling_text": "avr working and how excitation is controlled", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Explain the AVR working principle and control-loop operation.", "cross_family": false }, { "answer_id": "AVR-EXC-G-002", "score": 0.7037290930747986, "sibling_score": 0.7037290930747986, "answer_score": 0.6082138061523438, "sibling_qid": "MUM-2022-09-1353-Q007", "sibling_text": "how avr gives dc current to rotor", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Brushless excitation: how DC reaches the rotor", "cross_family": false }, { "answer_id": "BRUSHALT-A-001", "score": 0.6874645352363586, "sibling_score": 0.6874645352363586, "answer_score": 0.5493292272090912, "sibling_qid": "KOL-2026-02-2961-Q001", "sibling_text": "brushless excitation working", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01 · Working principle of the brushless alternator / brushless excitation systemHigh", "cross_family": false } ] }, { "qid": "KOL-2023-05-2657-Q005", "text": "Salient pole rotor construction, material of salient pole, why salient pole and why turbo generators size are small. 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How lower pintle clearance taken", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2023-05-3612", "tray": "new", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.5990800857543945, "sibling_score": 0.5990800857543945, "answer_score": null, "sibling_qid": "NOI-2026-09-0024-Q001", "sibling_text": "pintle clearance", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": true }, { "answer_id": "TRS-002", "score": 0.4638015031814575, "sibling_score": 0.4638015031814575, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "CRKPIN-P02-002", "score": 0.4567771553993225, "sibling_score": 0.4567771553993225, "answer_score": null, "sibling_qid": "KOL-2020-06-3340-Q002", "sibling_text": "u have 4 inch and 8 inch crank pin were u will measure the clearance", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankpin bearing clearance — measurement and interpretation", "cross_family": true } ] }, { "qid": "KOL-2023-05-3612-Q006", "text": "boiler manual operation", "family": "Boilers - Operations & Firing", "subtopic": "Boiler Operations", "tid": "KOL-2023-05-3612", "tray": "review", "candidates": [ { "answer_id": "BLR-OPS-007", "score": 0.7964534163475037, "sibling_score": 0.7964534163475037, "answer_score": null, "sibling_qid": "MUM-2026-06-3587-Q004", "sibling_text": "manual firing of boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Explain the firing sequence of an automatically fired boiler.", "cross_family": false }, { "answer_id": "BLR-OPS-004", "score": 0.7829383611679077, "sibling_score": 0.7829383611679077, "answer_score": null, "sibling_qid": "MUM-2026-07-3768-Q007", "sibling_text": "instruction to 4e to start the boiler in manual", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Explain the procedure for starting a boiler from a laid-up condition.", "cross_family": false }, { "answer_id": "BFM-330-003", "score": 0.7696623206138611, "sibling_score": 0.7696623206138611, "answer_score": null, "sibling_qid": "KOC-2026-05-0014-Q005", "sibling_text": "boiler manual firing and cross", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler vibration, backflow and furnace blowback during firing", "cross_family": false } ] }, { "qid": "KOL-2023-06-0749-Q006", "text": "Mlc 2006, responsibility as a 2nd engineer, 5 titles name.. Internal", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOL-2023-06-0749", "tray": "new", "candidates": [ { "answer_id": "ISM-2E-C-001", "score": 0.5165701508522034, "sibling_score": 0.5165701508522034, "answer_score": 0.39487131536006925, "sibling_qid": "KOC-2024-01-0274-Q006", "sibling_text": "ism survey as second engineer other than documentation and machinery", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM audit / survey preparation as Second Engineer — beyond the paperwork", "cross_family": true }, { "answer_id": "ISM-2E-A-001", "score": 0.5036194324493408, "sibling_score": 0.5036194324493408, "answer_score": 0.352688030898571, "sibling_qid": "CHE-2025-08-0040-Q006", "sibling_text": "ism role as 2nd engg", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Roles, duties and responsibilities of a Second Engineer under ISM/SMS", "cross_family": true }, { "answer_id": "ISM-2E-A-002", "score": 0.4986410439014435, "sibling_score": 0.4986410439014435, "answer_score": null, "sibling_qid": "CHE-2026-05-0586-Q015", "sibling_text": "ism survey as second engineer", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "How a Second Engineer prepares for an ISM audit or survey", "cross_family": true } ] }, { "qid": "KOL-2023-06-0750-Q005", "text": "External stake holder in ISM?", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOL-2023-06-0750", "tray": "new", "candidates": [ { "answer_id": "ISM-DPA-002", "score": 0.48310017585754395, "sibling_score": 0.48310017585754395, "answer_score": null, "sibling_qid": "KOC-2023-03-0172-Q004", "sibling_text": "ism who is responsible for ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "DPA basis : which convention, which code, and who is responsible for ISM", "cross_family": false }, { "answer_id": "ISM-AUD-P02-002", "score": 0.46864810585975647, "sibling_score": 0.46864810585975647, "answer_score": null, "sibling_qid": "KOC-2026-01-2087-Q013", "sibling_text": "what is the purpose of ism internal", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM Code — what it is, purpose, objectives and structure", "cross_family": false }, { "answer_id": "ISM-AUD-P02-007", "score": 0.4609595537185669, "sibling_score": 0.4609595537185669, "answer_score": 0.26242126524448395, "sibling_qid": "KOL-2024-07-0846-Q002", "sibling_text": "according to ism what is the roll if internal and external auditor", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Internal versus external ISM audit: purpose, difference and who does it", "cross_family": false } ] }, { "qid": "KOL-2023-06-1740-Q001", "text": "Liner tangential bore cooling. Why provided and asked to draw diagram to show how exactly water goes from cylinder jacket to tangential bore", "family": "Heat Exchangers & Coolers", "subtopic": "JCW System", "tid": "KOL-2023-06-1740", "tray": "new", "candidates": [ { "answer_id": "BFS-257-005", "score": 0.585291862487793, "sibling_score": 0.585291862487793, "answer_score": null, "sibling_qid": "CHE-2026-04-0505-Q002", "sibling_text": "draw the boiler fuel line diagram", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler burner atomisation and the fuel-line arrangement", "cross_family": true }, { "answer_id": "CYL-LUB-A-003", "score": 0.5721046328544617, "sibling_score": 0.5721046328544617, "answer_score": null, "sibling_qid": "KOL-2018-04-1366-Q001", "sibling_text": "everything about liner lubrication i said gutters he said gutters are eliminated after tangential bores in liner made me draw rough sketch for quills and spray in liner", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Lubricator quills — arrangement and oil distribution on the liner", "cross_family": true }, { "answer_id": "PCP-BF01-001", "score": 0.5691015720367432, "sibling_score": 0.5691015720367432, "answer_score": null, "sibling_qid": "KOC-2025-05-1913-Q001", "sibling_text": "mono screw pump diagram boiler water tube material", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "What is a progressive cavity pump — construction and working", "cross_family": true } ] }, { "qid": "KOL-2023-06-1741-Q001", "text": "Type of ship- chemical Type of engine- mc", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "KOL-2023-06-1741", "tray": "review", "candidates": [ { "answer_id": "MCC-MEB-P01-001", "score": 0.6912447810173035, "sibling_score": 0.6912447810173035, "answer_score": null, "sibling_qid": "MUM-2026-01-1242-Q004", "sibling_text": "type of engine mcc engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "MC-C (\"Compact\") engine — design and the main constructional differences from MC", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.6826137900352478, "sibling_score": 0.6826137900352478, "answer_score": null, "sibling_qid": "CHE-2026-04-0373-Q001S6", "sibling_text": "type of ship specification of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "IBC-BCH-B-004", "score": 0.6618354916572571, "sibling_score": 0.6618354916572571, "answer_score": null, "sibling_qid": "MUM-2026-05-3156-Q001", "sibling_text": "type of ships chemical tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Certificate of Fitness and MARPOL Annex II in practice", "cross_family": false } ] }, { "qid": "KOL-2023-06-1933-Q001", "text": "Cylinder Liner Bore cooling arrangement", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "KOL-2023-06-1933", "tray": "review", "candidates": [ { "answer_id": "CYL-LINER-P01-001", "score": 0.6905321478843689, "sibling_score": 0.6905321478843689, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001S4", "sibling_text": "liner cooling liner calibration", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Carrying out main-engine liner calibration (gauging)", "cross_family": false }, { "answer_id": "PC-TP-003", "score": 0.6705425977706909, "sibling_score": 0.6705425977706909, "answer_score": 0.5058837771415711, "sibling_qid": "KOC-2023-07-0925-Q009", "sibling_text": "how piston crown cooling taking place lube circuit from telescopic pipe where it return back", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston crown cooling oil circuit and where the oil returns", "cross_family": false }, { "answer_id": "CYL-LINER-P04-007", "score": 0.6620221734046936, "sibling_score": 0.6620221734046936, "answer_score": null, "sibling_qid": "MUM-2025-11-2866-Q010", "sibling_text": "latest developments in cyl liner he wants to here insulated mid section for reduce cooling effect to prevent moisture", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Latest developments — cold-corrosion control & the “insulated” liner", "cross_family": false } ] }, { "qid": "KOL-2023-06-1933-Q002", "text": "Types of ME crankshaft and how it is fabricated", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft Material", "tid": "KOL-2023-06-1933", "tray": "review", "candidates": [ { "answer_id": "CRANK-217-001", "score": 0.7060036063194275, "sibling_score": 0.7060036063194275, "answer_score": 0.5588128089904785, "sibling_qid": "MUM-2022-09-1022-Q004", "sibling_text": "types of crank shafts how they are built material", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankshaft types and how the type is identified", "cross_family": false }, { "answer_id": "HT-A-001", "score": 0.6549928784370422, "sibling_score": 0.6549928784370422, "answer_score": null, "sibling_qid": "MUM-2026-05-3283-Q006", "sibling_text": "crankshaft material and heat treatment", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Heat treatment: what it is, the main methods, and why it is done", "cross_family": false }, { "answer_id": "CRANK-217-002", "score": 0.6432846188545227, "sibling_score": 0.6432846188545227, "answer_score": 0.5639122366905213, "sibling_qid": "MUM-2026-05-3163-Q008", "sibling_text": "how is semi built crankshaft constructed some cross questions like advantages over fully built and where these type of crankshaft is seen", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Semi-built crankshaft: construction, fitting and comparison", "cross_family": false } ] }, { "qid": "KOL-2023-06-2660-Q004", "text": "Which was you last ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2023-06-2660", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.6810850501060486, "sibling_score": 0.6810850501060486, "answer_score": null, "sibling_qid": "MUM-2026-03-2588-Q001", "sibling_text": "which ships u have done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "CLASS-NOT-001", "score": 0.6664664149284363, "sibling_score": 0.6664664149284363, "answer_score": null, "sibling_qid": "MUM-2026-06-3643-Q002", "sibling_text": "notation of your last vessel", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "What is class notation, and how would you explain the notation written for your ship?", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.6442202925682068, "sibling_score": 0.6442202925682068, "answer_score": null, "sibling_qid": "MUM-2026-02-0741-Q001", "sibling_text": "which ship u have sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false } ] }, { "qid": "KOL-2023-06-3615-Q002", "text": "Type of ship and propulsion.lng", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "KOL-2023-06-3615", "tray": "review", "candidates": [ { "answer_id": "LPG-LNG-009", "score": 0.7704430222511292, "sibling_score": 0.7704430222511292, "answer_score": 0.499490088224411, "sibling_qid": "MUM-2026-01-0682-Q001", "sibling_text": "type of ship lng tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Gas-carrier fundamentals and ship-specific traps", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7080185413360596, "sibling_score": 0.7080185413360596, "answer_score": null, "sibling_qid": "MUM-2025-08-2357-Q001", "sibling_text": "type of ship type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.6857882142066956, "sibling_score": 0.6857882142066956, "answer_score": null, "sibling_qid": "MUM-2026-07-3668-Q004", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false } ] }, { "qid": "KOL-2023-06-3615-Q004", "text": "Lng tank construction.material. cross questions on material and insulation", "family": "Cargo Ops - Gas Carriers", "subtopic": "Cargo Tank Construction", "tid": "KOL-2023-06-3615", "tray": "review", "candidates": [ { "answer_id": "GC-TANK-005", "score": 0.8083776831626892, "sibling_score": 0.8083776831626892, "answer_score": 0.5591895461082458, "sibling_qid": "KOC-2026-08-2155-Q013", "sibling_text": "lng tank insulation material", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "LNG Moss-type cargo tank: construction and advantages", "cross_family": false }, { "answer_id": "GC-TANK-004", "score": 0.7095034718513489, "sibling_score": 0.7095034718513489, "answer_score": 0.6367879688739776, "sibling_qid": "CHE-2025-08-0046-Q004", "sibling_text": "cargo tank type material and insulation used", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Gas-carrier cargo tank construction: materials, insulation, fixing and tank safeties", "cross_family": false }, { "answer_id": "IGC-IGF-007", "score": 0.7029241323471069, "sibling_score": 0.7029241323471069, "answer_score": null, "sibling_qid": "KOL-2024-01-4035-Q003", "sibling_text": "types of lng cargo tanks detail of material of primary n secondary barrier and insulation space", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "IGC cargo tank types, containment, barriers and materials", "cross_family": true } ] }, { "qid": "KOL-2023-06-3615-Q010", "text": "Pintle", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2023-06-3615", "tray": "new", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.5668027400970459, "sibling_score": 0.5668027400970459, "answer_score": null, "sibling_qid": "MUM-2026-05-3227-Q009", "sibling_text": "pintle clearances", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": true }, { "answer_id": "TRS-002", "score": 0.536609411239624, "sibling_score": 0.536609411239624, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "BBR-005", "score": 0.46953585743904114, "sibling_score": 0.46953585743904114, "answer_score": 0.3338031455874443, "sibling_qid": "MUM-2026-07-3770-Q001", "sibling_text": "pinching screw", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "What are pinching (jacking) screws and how are they used in workshop removal/holding work?", "cross_family": true } ] }, { "qid": "KOL-2023-06-3615-Q011", "text": "bearing.how", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2023-06-3615", "tray": "new", "candidates": [ { "answer_id": "BRG-NOM-002", "score": 0.6116683483123779, "sibling_score": 0.6116683483123779, "answer_score": null, "sibling_qid": "CHE-2025-09-0215-Q011", "sibling_text": "some cross questions regarding bearing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Ball, Roller, Radial and Axial Bearings — Choosing the Type", "cross_family": true }, { "answer_id": "BEB-B-001", "score": 0.6027048230171204, "sibling_score": 0.6027048230171204, "answer_score": null, "sibling_qid": "KOL-2021-04-3391-Q001", "sibling_text": "be bearing survey", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bottom End Bearing — Survey & Inspection", "cross_family": true }, { "answer_id": "BRG-NOM-001", "score": 0.5911464691162109, "sibling_score": 0.5911464691162109, "answer_score": null, "sibling_qid": "MUM-2026-06-3447-Q002", "sibling_text": "bearing meaning like 6205", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Bearing Numbers, Suffixes and What to State When Ordering", "cross_family": true } ] }, { "qid": "KOL-2023-06-3615-Q012", "text": "many can be in a rudder and purpose", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2023-06-3615", "tray": "new", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.5375460982322693, "sibling_score": 0.5375460982322693, "answer_score": null, "sibling_qid": "KOL-2017-03-3044-Q004", "sibling_text": "4 various tests and checks on rudder in dd", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "TRS-002", "score": 0.49883925914764404, "sibling_score": 0.49883925914764404, "answer_score": 0.3357897043228149, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "SPR-STERN-007", "score": 0.4904555082321167, "sibling_score": 0.4904555082321167, "answer_score": 0.4007964387536049, "sibling_qid": "MUM-2022-08-0037-Q002", "sibling_text": "rudder cons", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Rudder types, area, construction, load support & turning", "cross_family": true } ] }, { "qid": "KOL-2023-06-3615-Q013", "text": "Pintle bearing clearence", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2023-06-3615", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.6719636917114258, "sibling_score": 0.6719636917114258, "answer_score": null, "sibling_qid": "NOI-2026-09-0024-Q001", "sibling_text": "pintle clearance", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": true }, { "answer_id": "BCL-592-002", "score": 0.6246204972267151, "sibling_score": 0.6246204972267151, "answer_score": null, "sibling_qid": "MUM-2026-02-2926-Q005", "sibling_text": "m e bearing clearance how to take", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Take me through all the clearances you measure on the main engine and how you take each one.", "cross_family": true }, { "answer_id": "STS-P02-001", "score": 0.620854914188385, "sibling_score": 0.620854914188385, "answer_score": null, "sibling_qid": "KOL-2017-03-3040-Q003", "sibling_text": "what was the bearing clearance", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "STS-P02-01 - Stern tube bearing clearance and wear-down measurement", "cross_family": true } ] }, { "qid": "KOL-2023-06-3615-Q016", "text": "Boiler type and construction", "family": "Boilers - Construction & Components", "subtopic": "Boiler Types / Construction", "tid": "KOL-2023-06-3615", "tray": "review", "candidates": [ { "answer_id": "BLR-DRUM-002", "score": 0.7963740229606628, "sibling_score": 0.7963740229606628, "answer_score": null, "sibling_qid": "MUM-2026-06-3660-Q005", "sibling_text": "boiler type and boiler construction", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Steam-drum construction, material and plate manufacture, and construction-stage tests", "cross_family": false }, { "answer_id": "BLR-CAP-BOILER-CAPACITY-RATING-005", "score": 0.7478018999099731, "sibling_score": 0.7478018999099731, "answer_score": null, "sibling_qid": "MUM-2026-09-3892-Q008", "sibling_text": "type of boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "What are boiler pressure ratings or maximum working pressure?", "cross_family": false }, { "answer_id": "BLR-TUBE-P01-002", "score": 0.7273798584938049, "sibling_score": 0.7273798584938049, "answer_score": 0.5496948182582855, "sibling_qid": "CHE-2026-05-0555-Q009", "sibling_text": "what type boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "03. Types, functions and arrangement of boiler tubes", "cross_family": false } ] }, { "qid": "KOL-2023-06-3616-Q003", "text": "Safety valve survey", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2023-06-3616", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P01-001", "score": 0.7097986340522766, "sibling_score": 0.7097986340522766, "answer_score": null, "sibling_qid": "KOC-2026-09-2205-Q019", "sibling_text": "setting safety valve infront of surveyor", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.6290252804756165, "sibling_score": 0.6290252804756165, "answer_score": null, "sibling_qid": "KOL-2021-08-1614-Q006", "sibling_text": "boiler survey interval types of safety valves improved high lift safety valve in detail", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-003", "score": 0.6223201751708984, "sibling_score": 0.6223201751708984, "answer_score": 0.4730513095855713, "sibling_qid": "MUM-2023-08-2191-Q004", "sibling_text": "safety valve accumulation pr test", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "The accumulation test and the safety valve — required lift, how lift and capacity are verified, and why accumulation must stay inside the limit", "cross_family": false } ] }, { "qid": "KOL-2023-07-0751-Q001", "text": "Safety", "family": "", "subtopic": "High Voltage System", "tid": "KOL-2023-07-0751", "tray": "review", "candidates": [ { "answer_id": "REEF-SAFE-001", "score": 0.699542760848999, "sibling_score": 0.699542760848999, "answer_score": null, "sibling_qid": "MUM-2026-03-1306-Q024", "sibling_text": "refer safeties", "sibling_family": "Safety Management & Emergency", "via": "sibling", "answer_title": "Refrigeration plant and reefer-room safeties — what protects the machinery, and what protects the man?", "cross_family": false }, { "answer_id": "IGAT-583-001", "score": 0.6702312231063843, "sibling_score": 0.6702312231063843, "answer_score": null, "sibling_qid": "KOL-2017-03-0078-Q002", "sibling_text": "i g safeties", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "State all the alarms, trips and safety cut-outs provided on a tanker inert gas (IG) system.", "cross_family": false }, { "answer_id": "MSB-ESB-D-001", "score": 0.6658301949501038, "sibling_score": 0.6658301949501038, "answer_score": null, "sibling_qid": "KOC-2023-01-1226-Q003", "sibling_text": "safties in it", "sibling_family": "", "via": "sibling", "answer_title": "Main & emergency switchboards: function, construction & ship power distribution", "cross_family": false } ] }, { "qid": "KOL-2023-07-0751-Q004", "text": "How many lifebuoy on ship as per Sola's 4 stern Plates / some other plates i dont remember , where it is used", "family": "SOLAS - LSA & Lifeboats", "subtopic": "LSA Code", "tid": "KOL-2023-07-0751", "tray": "review", "candidates": [ { "answer_id": "LRHR-A-004", "score": 0.6890440583229065, "sibling_score": 0.6890440583229065, "answer_score": null, "sibling_qid": "KOL-2025-12-1139-Q005", "sibling_text": "as per solas life raft equipment only 4 qstn", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Liferaft equipment as per SOLAS — the A pack and the B pack", "cross_family": false }, { "answer_id": "SPAB-330-001", "score": 0.6415960788726807, "sibling_score": 0.6415960788726807, "answer_score": null, "sibling_qid": "KOC-2025-07-0625-Q007", "sibling_text": "6 liferaft pack a and pack b as per solas", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "SOLAS Pack A and Pack B in liferafts — what they are and the difference", "cross_family": false }, { "answer_id": "LRHR-A-001", "score": 0.6361784934997559, "sibling_score": 0.6361784934997559, "answer_score": null, "sibling_qid": "MUM-2026-05-3086-Q004", "sibling_text": "number of life raft", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "SOLAS requirement for liferafts on a cargo ship — number and total capacity", "cross_family": false } ] }, { "qid": "KOL-2023-07-0752-Q002", "text": "Explain phenomenon of rolling and how rolling occurs?", "family": "SOLAS", "subtopic": "Static / Dynamic Stability", "tid": "KOL-2023-07-0752", "tray": "new", "candidates": [ { "answer_id": "PAR-ROLL-001", "score": 0.557426393032074, "sibling_score": 0.557426393032074, "answer_score": 0.35795280039310456, "sibling_qid": "MUM-2025-07-0350-Q005", "sibling_text": "parametric rolling", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "01. What is parametric rolling?", "cross_family": false }, { "answer_id": "PAR-ROLL-004", "score": 0.555837869644165, "sibling_score": 0.555837869644165, "answer_score": 0.3611468583345413, "sibling_qid": "KOL-2025-07-0975-Q002", "sibling_text": "prismatic rolling", "sibling_family": "", "via": "sibling", "answer_title": "04. Parametric vs synchronous rolling (and the ‘sequential / prismatic’ variants)", "cross_family": false }, { "answer_id": "BK-001", "score": 0.5430121421813965, "sibling_score": 0.5430121421813965, "answer_score": null, "sibling_qid": "KOC-2025-07-0633-Q017", "sibling_text": "how its reducing rolling", "sibling_family": "", "via": "sibling", "answer_title": "What is a bilge keel and what is its purpose?", "cross_family": false } ] }, { "qid": "KOL-2023-07-0754-Q004", "text": ")mlc-2006 purpose and as 2ae", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOL-2023-07-0754", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-007", "score": 0.4496515989303589, "sibling_score": 0.4496515989303589, "answer_score": null, "sibling_qid": "MUM-2026-02-0734-Q007", "sibling_text": "mlc 2006 detainable deficiency", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false }, { "answer_id": "RISK-RA-D-002", "score": 0.3554523289203644, "sibling_score": 0.3554523289203644, "answer_score": null, "sibling_qid": "MUM-2023-10-0133-Q007", "sibling_text": "objectives of risk assessments 8 mlc 2006", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "", "cross_family": true }, { "answer_id": "MLC-WRH-B-006", "score": 0.3512665331363678, "sibling_score": 0.3512665331363678, "answer_score": null, "sibling_qid": "MUM-2026-07-3680-Q005", "sibling_text": "what is mlc certificate under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false } ] }, { "qid": "KOL-2023-07-0756-Q005", "text": "Risk assessments. Hot work in engine room do risk assessment 6. Mlc 2006", "family": "Workshop & Welding", "subtopic": "Hot Work", "tid": "KOL-2023-07-0756", "tray": "new", "candidates": [ { "answer_id": "WBS-C-003", "score": 0.5676453709602356, "sibling_score": 0.5676453709602356, "answer_score": null, "sibling_qid": "CHE-2026-05-0558-Q013", "sibling_text": "in dry dock how will you prepare for hot work what all fire safety you will take", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Shipboard hot work — the permit, the designated area, and work near fuel tanks", "cross_family": false }, { "answer_id": "RISK-RA-D-005", "score": 0.5486896634101868, "sibling_score": 0.5486896634101868, "answer_score": null, "sibling_qid": "KOL-2022-09-0683-Q003", "sibling_text": "ship is at ship repairing yard tell me the area where chances of fire i only told 2 area he said there are number of places where chances of fire and as a 2nd eng you have to check ensure the safety", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "", "cross_family": true }, { "answer_id": "FSH-DET-004", "score": 0.5486222505569458, "sibling_score": 0.5486222505569458, "answer_score": null, "sibling_qid": "KOC-2026-03-0886-Q012", "sibling_text": "heat detectors in engine room ecr w s welding area", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Heat detector locations onboard, and why heat detectors in ECR, workshop and machinery spaces", "cross_family": true } ] }, { "qid": "KOL-2023-07-0759-Q003", "text": "Diff between immersion suit and tpa", "family": "SOLAS - LSA & Lifeboats", "subtopic": "LSA Code", "tid": "KOL-2023-07-0759", "tray": "new", "candidates": [ { "answer_id": "SCBA-EEBD-005", "score": 0.5658174157142639, "sibling_score": 0.5658174157142639, "answer_score": 0.4002859234809875, "sibling_qid": "KOL-2017-01-0042-Q005", "sibling_text": "difference between firemans outfit ppa immerssion suit when it is used", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fireman's outfit vs PPA vs immersion suit — what each is, when used", "cross_family": true }, { "answer_id": "LB-SURV-C-003", "score": 0.48739978671073914, "sibling_score": 0.48739978671073914, "answer_score": null, "sibling_qid": "CHE-2026-02-0103-Q002", "sibling_text": "immersion suit monthly 6 month and annual maintenance", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Routine maintenance ladder — weekly / monthly / quarterly / 6-monthly onboard checks", "cross_family": false }, { "answer_id": "SPAB-330-001", "score": 0.4296492636203766, "sibling_score": 0.4296492636203766, "answer_score": null, "sibling_qid": "KOC-2025-01-0514-Q013", "sibling_text": "diffrence between solas a liferaft and solas b liferaft", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "SOLAS Pack A and Pack B in liferafts — what they are and the difference", "cross_family": false } ] }, { "qid": "KOL-2023-07-1742-Q004", "text": "Semi built crankshaft fabrication", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft Material", "tid": "KOL-2023-07-1742", "tray": "review", "candidates": [ { "answer_id": "CRANK-217-001", "score": 0.7542871236801147, "sibling_score": 0.7542871236801147, "answer_score": 0.5663813948631287, "sibling_qid": "MUM-2026-01-1240-Q003", "sibling_text": "crankshaft type explain semi built", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankshaft types and how the type is identified", "cross_family": false }, { "answer_id": "CRANK-217-002", "score": 0.7159028649330139, "sibling_score": 0.7159028649330139, "answer_score": 0.5834123849868774, "sibling_qid": "MUM-2026-05-3163-Q008", "sibling_text": "how is semi built crankshaft constructed some cross questions like advantages over fully built and where these type of crankshaft is seen", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Semi-built crankshaft: construction, fitting and comparison", "cross_family": false }, { "answer_id": "CRANK-217-004", "score": 0.6497480273246765, "sibling_score": 0.6497480273246765, "answer_score": null, "sibling_qid": "MUM-2026-02-2570-Q003", "sibling_text": "semi built crank shaft slippage", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankshaft slippage, tell-tale marks and action if found", "cross_family": false } ] }, { "qid": "KOL-2023-07-1743-Q006", "text": "5-how bedplate is fitted with hull plate.advancement in new type of holding down bolt.", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Holding Down Bolts", "tid": "KOL-2023-07-1743", "tray": "new", "candidates": [ { "answer_id": "CHK-RM-001", "score": 0.6465754508972168, "sibling_score": 0.6465754508972168, "answer_score": 0.5097956418991089, "sibling_qid": "KOL-2018-10-1428-Q003", "sibling_text": "how bedplate is connected to hull", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What are chocks? Function, types, where fitted and how placed — which have the biggest area, and how does the bedplate connect to the hull?", "cross_family": false }, { "answer_id": "BED-CHOCK-001", "score": 0.6239220499992371, "sibling_score": 0.6239220499992371, "answer_score": 0.46266672015190125, "sibling_qid": "MUM-2023-08-0952-Q004", "sibling_text": "how to fix bed plate on ship", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "How is the main-engine bedplate fixed to the ship's structure?", "cross_family": false }, { "answer_id": "FB-COUP-001", "score": 0.6135809421539307, "sibling_score": 0.6135809421539307, "answer_score": null, "sibling_qid": "KOC-2026-09-2175-Q005", "sibling_text": "fitted bolts where", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What fitted bolts are, what they do, and where they sit onboard", "cross_family": false } ] }, { "qid": "KOL-2023-07-1744-Q002", "text": "tangential bore cooling arrangement ?", "family": "Heat Exchangers & Coolers", "subtopic": "JCW System", "tid": "KOL-2023-07-1744", "tray": "new", "candidates": [ { "answer_id": "JCW-SYS-006", "score": 0.5755171179771423, "sibling_score": 0.5755171179771423, "answer_score": null, "sibling_qid": "KOL-2019-12-1880-Q003", "sibling_text": "teritiary cooling in engine mediums", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Describe the ME cooling system, its tertiary cooling media, and the types, number and arrangement of jackets", "cross_family": false }, { "answer_id": "BLR-TUBE-P01-002", "score": 0.5591111183166504, "sibling_score": 0.5591111183166504, "answer_score": null, "sibling_qid": "MUM-2025-09-2832-Q003", "sibling_text": "construction of tube type cooled straight tubes only", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "03. Types, functions and arrangement of boiler tubes", "cross_family": true }, { "answer_id": "STHX-001", "score": 0.5581455826759338, "sibling_score": 0.5581455826759338, "answer_score": null, "sibling_qid": "MUM-2026-02-1280-Q006", "sibling_text": "type of cooler type of flow", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "STHX-01 — Construction, parts, materials, tube fitting, pass arrangement and flow", "cross_family": false } ] }, { "qid": "KOL-2023-07-1744-Q004", "text": "3 semi built crankshaft making process", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft Material", "tid": "KOL-2023-07-1744", "tray": "review", "candidates": [ { "answer_id": "CRANK-217-001", "score": 0.676771342754364, "sibling_score": 0.676771342754364, "answer_score": 0.5205470383167267, "sibling_qid": "MUM-2026-01-1240-Q003", "sibling_text": "crankshaft type explain semi built", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankshaft types and how the type is identified", "cross_family": false }, { "answer_id": "CRANK-217-002", "score": 0.6595916152000427, "sibling_score": 0.6595916152000427, "answer_score": 0.554429566860199, "sibling_qid": "MUM-2026-05-3163-Q008", "sibling_text": "how is semi built crankshaft constructed some cross questions like advantages over fully built and where these type of crankshaft is seen", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Semi-built crankshaft: construction, fitting and comparison", "cross_family": false }, { "answer_id": "HT-A-001", "score": 0.6221604943275452, "sibling_score": 0.6221604943275452, "answer_score": null, "sibling_qid": "MUM-2026-03-2609-Q005", "sibling_text": "crankshaft material and heat treatment process", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Heat treatment: what it is, the main methods, and why it is done", "cross_family": false } ] }, { "qid": "KOL-2023-07-1744-Q005", "text": "4 improved high lift safety valve construction", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2023-07-1744", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.7776854634284973, "sibling_score": 0.7776854634284973, "answer_score": null, "sibling_qid": "MUM-2026-06-3405-Q017", "sibling_text": "improved high lift safety valve details", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACSS-002", "score": 0.4829041302204132, "sibling_score": null, "answer_score": 0.4829041302204132, "sibling_qid": "", "sibling_text": "relief safety valves settings testing lifting reasons bursting disc set just above stage working pressure the class standard accumulation limit is about 10 though the exact set point is a maker sms value non isolable from its stage test to the maker s method easing gear or test rig for lifting pressure log and reset", "sibling_family": "", "via": "answer_title", "answer_title": "Relief / safety valves: settings, testing, lifting reasons; bursting disc", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-003", "score": 0.4739465922117233, "sibling_score": null, "answer_score": 0.4739465922117233, "sibling_qid": "", "sibling_text": "the accumulation test and the safety valve required lift how lift and capacity are verified and why accumulation must stay inside the limit popping test proves setting accumulation test proves installed relieving capacity not two versions of one test sizing the class discharge formula sizes the aggregate valve area from the maker s specified peak evaporation using a constant for the valve type", "sibling_family": "", "via": "answer_title", "answer_title": "The accumulation test and the safety valve — required lift, how lift and capacity are verified, and why accumulation must stay inside the limit", "cross_family": false } ] }, { "qid": "KOL-2023-07-1746-Q002", "text": "Reason for changing medium or high-speed engine crank rod bolts and why not in slow speed engine? How life of bolts is decided? Endurance limit?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Connecting Rod & Bolts", "tid": "KOL-2023-07-1746", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.7118574380874634, "sibling_score": 0.7118574380874634, "answer_score": 0.5733127295970917, "sibling_qid": "KOL-2018-08-1413-Q003", "sibling_text": "high speed engine con rod bolt why we need to change aftr certain period", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": true }, { "answer_id": "CRB-003", "score": 0.6891638040542603, "sibling_score": 0.6891638040542603, "answer_score": 0.5839662432670593, "sibling_qid": "MUM-2022-12-1037-Q024", "sibling_text": "when u need to change con rod bolts and various check also can it run lifetime if no issues on bolts", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "When do you need to change connecting rod bolts, and can they run for the life of the engine if no defect is found?", "cross_family": false }, { "answer_id": "CRB-015", "score": 0.6540429592132568, "sibling_score": 0.6540429592132568, "answer_score": null, "sibling_qid": "KOL-2024-11-3726-Q002", "sibling_text": "why me crank pin bolt not replaceable on regular interval why only ae crankpin bolt prone to change on regular interval based on rh suppose main engine crackpin bolt found cracked found during survey then what will do how will you do reason for that give only management level reason i don t know he keeps saying tell me management level answer", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Why is the main engine crankpin bolt not replaced at a regular interval while the auxiliary engine crankpin bolt is changed on running hours? (management-level answer)", "cross_family": false } ] }, { "qid": "KOL-2023-07-1747-Q006", "text": "modern S/G system(bidirectional v/v, control box, potentiometer, servo pump, isolation valve)", "family": "Steering Gear & Hydraulics", "subtopic": "Frame System / Pump Type", "tid": "KOL-2023-07-1747", "tray": "new", "candidates": [ { "answer_id": "HYD-VLV-006", "score": 0.6447929739952087, "sibling_score": 0.6447929739952087, "answer_score": null, "sibling_qid": "KOL-2019-05-2288-Q004", "sibling_text": "solenoid valve full working where used and dig of it", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Solenoid Valves — Working, Diagram and Marine Use", "cross_family": false }, { "answer_id": "HYD-VLV-008", "score": 0.6411453485488892, "sibling_score": 0.6411453485488892, "answer_score": 0.5316336780786514, "sibling_qid": "KOC-2025-09-2072-Q006", "sibling_text": "differece in servo valve nd bidirectional valve mep", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Servo Valve versus Bidirectional Valve", "cross_family": false }, { "answer_id": "HYD-VLV-002", "score": 0.6409747004508972, "sibling_score": 0.6409747004508972, "answer_score": null, "sibling_qid": "KOL-2018-04-1858-Q006", "sibling_text": "5 s g all about valves in the system what and function of auto n manual bypass valves", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Steering-Gear Valves: Relief, Bypass, Bidirectional and Isolation — and Isolating a Leak", "cross_family": false } ] }, { "qid": "KOL-2023-07-2664-Q006", "text": "What is salient pole? Where it is used ?", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator / Generator", "tid": "KOL-2023-07-2664", "tray": "new", "candidates": [ { "answer_id": "ALT-GEN-P04-007", "score": 0.40253180265426636, "sibling_score": 0.40253180265426636, "answer_score": null, "sibling_qid": "KOC-2025-08-1568-Q005", "sibling_text": "why 8poles", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Frequency, poles, speed and 50/60 Hz relation", "cross_family": false }, { "answer_id": "SYNC-ASYNC-A-002", "score": 0.3744772672653198, "sibling_score": 0.3744772672653198, "answer_score": null, "sibling_qid": "KOL-2025-09-2856-Q004", "sibling_text": "salient pole of synchronous motor and function", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Construction and main parts of a synchronous motor", "cross_family": false }, { "answer_id": "DCMOT-A-001", "score": 0.32978588342666626, "sibling_score": 0.32978588342666626, "answer_score": null, "sibling_qid": "KOC-2023-11-1302-Q005", "sibling_text": "inter pole", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types, characteristics and shipboard use of DC motors", "cross_family": true } ] }, { "qid": "KOL-2023-07-2665-Q004", "text": ")arrangement of brushless alternator Then internal", "family": "Electrical - Generator & Alternator", "subtopic": "Brushless Alternator", "tid": "KOL-2023-07-2665", "tray": "review", "candidates": [ { "answer_id": "BRUSHALT-A-001", "score": 0.7204754948616028, "sibling_score": 0.7204754948616028, "answer_score": 0.5081081777811051, "sibling_qid": "KOL-2021-10-2502-Q002", "sibling_text": "brushless alternator where rotor exciter fitted how current going exciter to main rotor", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01 · Working principle of the brushless alternator / brushless excitation systemHigh", "cross_family": false }, { "answer_id": "BL-ALT-C-001", "score": 0.6998845934867859, "sibling_score": 0.6998845934867859, "answer_score": null, "sibling_qid": "KOL-2021-03-2432-Q002", "sibling_text": "brushless alternator only tell electrical advantage", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Electrical advantages of brushless excitation over brushed / static", "cross_family": false }, { "answer_id": "BL-ALT-C-002", "score": 0.516553857922554, "sibling_score": null, "answer_score": 0.516553857922554, "sibling_qid": "", "sibling_text": "how to identify onboard that an alternator is brushless open the exciter non drive end cover no brushes no brush boxes or springs no slip rings no carbon dust brushless defining proof no slip rings on the main rotor a visible shaft mounted rotating rectifier diode wheel plus surge suppressor", "sibling_family": "", "via": "answer_title", "answer_title": "How to identify onboard that an alternator is brushless", "cross_family": false } ] }, { "qid": "KOL-2023-07-2665-Q007", "text": ")what all safety given in gas compressor and what type of gas reliq compressor", "family": "Cargo Ops - Gas Carriers", "subtopic": "Reliquefaction Plant", "tid": "KOL-2023-07-2665", "tray": "review", "candidates": [ { "answer_id": "REEF-COMP-001", "score": 0.7202142477035522, "sibling_score": 0.7202142477035522, "answer_score": 0.49223612546920775, "sibling_qid": "MUM-2026-07-3671-Q008", "sibling_text": "safeties on compressor", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Reefer/AC compressor safeties and cut-outs — safety valve, HP and LP cut-outs", "cross_family": false }, { "answer_id": "IGC-GAS-012", "score": 0.6884843111038208, "sibling_score": 0.6884843111038208, "answer_score": 0.5361503183841705, "sibling_qid": "KOL-2021-03-0480-Q002", "sibling_text": "safeties of compressor room in a gas carrier", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Compressor-room and motor-room safeties (including the fusible plug)", "cross_family": false }, { "answer_id": "GC-TANK-004", "score": 0.648465096950531, "sibling_score": 0.648465096950531, "answer_score": null, "sibling_qid": "MUM-2026-01-1252-Q005", "sibling_text": "lng gas regarding safeties precautions etc", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Gas-carrier cargo tank construction: materials, insulation, fixing and tank safeties", "cross_family": false } ] }, { "qid": "KOL-2023-07-2665-Q009", "text": ")why n2 used as inert gas and for firefighting on lpg carriers", "family": "Cargo Ops - Tankers", "subtopic": "IG System", "tid": "KOL-2023-07-2665", "tray": "review", "candidates": [ { "answer_id": "IGC-IGF-008", "score": 0.6741292476654053, "sibling_score": 0.6741292476654053, "answer_score": 0.49614596366882324, "sibling_qid": "KOL-2024-01-4035-Q002", "sibling_text": "fire fighting system on deck of lng carrier operation procedure why n2 used", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Fire prevention and firefighting on gas / LNG / LPG carriers", "cross_family": true }, { "answer_id": "IGC-GAS-006", "score": 0.6216410398483276, "sibling_score": 0.6216410398483276, "answer_score": null, "sibling_qid": "KOL-2025-09-1033-Q002", "sibling_text": "deck fixed fire fighting system on lng ship how it propelled why nitrogen", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Deck fixed dry chemical powder (DCP) fire-extinguishing system", "cross_family": true }, { "answer_id": "TNK-SAFE-BF26-002", "score": 0.6168442964553833, "sibling_score": 0.6168442964553833, "answer_score": null, "sibling_qid": "KOL-2019-11-0351-Q003", "sibling_text": "fire fighting system of chemical tankers and n2 system safeties before doing maintenance", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What safeties are provided on the cargo tanks of an oil, crude or chemical tanker?", "cross_family": false } ] }, { "qid": "KOL-2023-07-2667-Q001", "text": "AvR construction and brushless alternator", "family": "Electrical - Generator & Alternator", "subtopic": "Brushless Alternator", "tid": "KOL-2023-07-2667", "tray": "review", "candidates": [ { "answer_id": "BRUSHALT-A-001", "score": 0.7139972448348999, "sibling_score": 0.7139972448348999, "answer_score": 0.5266941964626312, "sibling_qid": "MUM-2026-06-3522-Q007", "sibling_text": "brushless alternators construction", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01 · Working principle of the brushless alternator / brushless excitation systemHigh", "cross_family": false }, { "answer_id": "AVR-EXC-G-002", "score": 0.6919692158699036, "sibling_score": 0.6919692158699036, "answer_score": 0.5213459074497223, "sibling_qid": "MUM-2025-05-1525-Q001", "sibling_text": "uti tape working and full form brushless alternator component why avr", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Brushless excitation: how DC reaches the rotor", "cross_family": false }, { "answer_id": "ALT-GEN-P03-003", "score": 0.5532404839992523, "sibling_score": null, "answer_score": 0.5532404839992523, "sibling_qid": "", "sibling_text": "brushless alternator advantages and brushed vs brushless comparison brushed dc excitation reaches rotor through brushes and slip rings brushless avr feeds exciter field exciter output is rectified by rotating diodes to feed main rotor", "sibling_family": "", "via": "answer_title", "answer_title": "Brushless alternator advantages and brushed vs brushless comparison", "cross_family": false } ] }, { "qid": "KOL-2023-07-2668-Q003", "text": "DOL Starter (what keeps motor running once start button is released after starting)", "family": "Electrical - Motors & Starters", "subtopic": "DOL Starter", "tid": "KOL-2023-07-2668", "tray": "new", "candidates": [ { "answer_id": "MNS-013", "score": 0.6453602910041809, "sibling_score": 0.6453602910041809, "answer_score": null, "sibling_qid": "CHE-2026-03-0350-Q001", "sibling_text": "motor running normaly you stop and started again but not stated why", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "A running motor suddenly stopped — troubleshooting, and the restart trap", "cross_family": false }, { "answer_id": "STARTER-DEC-B-002", "score": 0.6299473643302917, "sibling_score": 0.6299473643302917, "answer_score": 0.4587794780731201, "sibling_qid": "CHE-2025-07-0266-Q004", "sibling_text": "why starter for motor i said about the inrush he said how u will avoid in dol and why is the starter required for the motor he was expecting the safety of the motor in dol inbuilt internal ubaid sir", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Why a starter is needed & reducing starting current", "cross_family": false }, { "answer_id": "STR-DEC-A-001", "score": 0.6237959265708923, "sibling_score": 0.6237959265708923, "answer_score": null, "sibling_qid": "KOC-2024-10-1408-Q006", "sibling_text": "types of starters purpose of starters reduce starting current how dol reduces starting current", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false } ] }, { "qid": "KOL-2023-07-2670-Q001", "text": "Alternator safety", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator Protection", "tid": "KOL-2023-07-2670", "tray": "review", "candidates": [ { "answer_id": "ALT-GEN-P01-001", "score": 0.7949528098106384, "sibling_score": 0.7949528098106384, "answer_score": 0.5255527883768082, "sibling_qid": "MUM-2026-09-3990-Q001", "sibling_text": "alternator safety", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Alternator/generator safeties and protection trips", "cross_family": false }, { "answer_id": "ALT-MTN-B-001", "score": 0.5345243096351623, "sibling_score": null, "answer_score": 0.5345243096351623, "sibling_qid": "", "sibling_text": "routine onboard alternator maintenance checks clean air path dry low pressure air blow through cooler and filters clear keep winding temperature in band insulation resistance to earth on a megger trended over time investigate a falling trend do not wait for the alarm", "sibling_family": "", "via": "answer_title", "answer_title": "Routine onboard alternator maintenance checks", "cross_family": false }, { "answer_id": "ALT-MAINT-A-001", "score": 0.5310058504343033, "sibling_score": null, "answer_score": 0.5310058504343033, "sibling_qid": "", "sibling_text": "routine maintenance care of a ship s alternator make safe first permit to work isolate rack out and lock off the breaker immobilise the prime mover the set is engine driven a blackout dead bus auto start can crank it prove dead discharge the windings the space heater supply is separate it stays live after the alternator breaker is open isolate it independently before touching the windings", "sibling_family": "", "via": "answer_title", "answer_title": "Routine maintenance & care of a ship’s alternator", "cross_family": false } ] }, { "qid": "KOL-2023-07-2671-Q002S2", "text": "Main Switch Board safeties?", "family": "", "subtopic": "MSB / ESB / Switchboard", "tid": "KOL-2023-07-2671", "tray": "review", "candidates": [ { "answer_id": "MSB-ESB-F-001", "score": 0.7215971350669861, "sibling_score": 0.7215971350669861, "answer_score": null, "sibling_qid": "KOL-2022-05-2570-Q007", "sibling_text": "safeties on main switch board", "sibling_family": "", "via": "sibling", "answer_title": "What safeties, protection trips, relays and alarms are provided on the MSB/ESB and how are they tested?", "cross_family": false }, { "answer_id": "HV-SYS-P05-001", "score": 0.718644380569458, "sibling_score": 0.718644380569458, "answer_score": 0.5164404213428497, "sibling_qid": "KOL-2026-02-2961-Q004", "sibling_text": "main switch board safeties", "sibling_family": "", "via": "sibling", "answer_title": "HV switchboard (MSB): safeties, interlocks and protective features", "cross_family": false }, { "answer_id": "MSB-ESB-E-001", "score": 0.718644380569458, "sibling_score": 0.718644380569458, "answer_score": null, "sibling_qid": "CHE-2026-05-0534-Q007", "sibling_text": "main switch board safeties", "sibling_family": "Electrical - Distribution & MSB", "via": "sibling", "answer_title": "What safeties, protection trips, relays and alarms are provided on the MSB / ESB, and how are they tested?", "cross_family": false } ] }, { "qid": "KOL-2023-07-2671-Q003", "text": "types of electrical drawings", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Electrical Components / Electronics", "tid": "KOL-2023-07-2671", "tray": "review", "candidates": [ { "answer_id": "ELEC-ELX-006", "score": 0.9030937552452087, "sibling_score": 0.9030937552452087, "answer_score": 0.6764341801404953, "sibling_qid": "KOL-2017-06-2133-Q001", "sibling_text": "types of electrical drawings", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Electrical drawings and wiring diagrams", "cross_family": false }, { "answer_id": "EPC-P03-004", "score": 0.7385814785957336, "sibling_score": 0.7385814785957336, "answer_score": null, "sibling_qid": "KOC-2024-09-1399-Q004", "sibling_text": "ladder diagram", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is ladder logic? Explain a ladder diagram and ladder programming with a simple example.", "cross_family": false }, { "answer_id": "VFD-INV-P02-001", "score": 0.7150298357009888, "sibling_score": 0.7150298357009888, "answer_score": null, "sibling_qid": "KOC-2025-07-1546-Q001", "sibling_text": "vfd drawing", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Draw and explain the VFD power circuit and working sequence", "cross_family": false } ] }, { "qid": "KOL-2023-07-2672-Q002", "text": "Types of cabin as per temperature", "family": "Refrigeration & AC", "subtopic": "AC Hot/Warm", "tid": "KOL-2023-07-2672", "tray": "new", "candidates": [ { "answer_id": "RAC-HPLP-389-003", "score": 0.6071161031723022, "sibling_score": 0.6071161031723022, "answer_score": null, "sibling_qid": "CHE-2026-02-0483-Q005", "sibling_text": "ac high temperature", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Trips and cutouts on a refrigeration compressor (HP, LP, LO)", "cross_family": false }, { "answer_id": "CABLE-INSUL-D-001", "score": 0.5950461030006409, "sibling_score": 0.5950461030006409, "answer_score": null, "sibling_qid": "KOL-2025-09-2882-Q003", "sibling_text": "insulation class type temperature based", "sibling_family": "", "via": "sibling", "answer_title": "Insulation: materials, classes and required properties", "cross_family": false }, { "answer_id": "RAC-MAT-320-002", "score": 0.5882921814918518, "sibling_score": 0.5882921814918518, "answer_score": 0.4569311052560806, "sibling_qid": "MUM-2026-02-2581-Q005", "sibling_text": "accomodation ac temp not developing", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "2. Accommodation / passenger AC — holding temperature and \"cooling not developing\"", "cross_family": false } ] }, { "qid": "KOL-2023-07-2672-Q004", "text": "electrical safeties of steering gear", "family": "Steering Gear & Hydraulics", "subtopic": "Steering Gear Motor", "tid": "KOL-2023-07-2672", "tray": "review", "candidates": [ { "answer_id": "SG-055-B-002", "score": 0.8450151085853577, "sibling_score": 0.8450151085853577, "answer_score": 0.6281245857477188, "sibling_qid": "KOC-2026-03-1734-Q006", "sibling_text": "steering gear electrical safeties", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Steering-gear alarms, trips and electrical / hydraulic safeties", "cross_family": false }, { "answer_id": "SGM-ELEC-001", "score": 0.7787848711013794, "sibling_score": 0.7787848711013794, "answer_score": 0.5937182426452636, "sibling_qid": "MUM-2024-07-1436-Q006", "sibling_text": "steering gear motor safeties with respect to electrical", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What are the safeties, alarms and trips on the steering gear motor as per SOLAS — and how do you activate the safematic?", "cross_family": true }, { "answer_id": "STEER-055-A-002", "score": 0.7718985676765442, "sibling_score": 0.7718985676765442, "answer_score": null, "sibling_qid": "MUM-2024-12-1480-Q006", "sibling_text": "safieties of steering gear motor", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Steering gear motor and power unit", "cross_family": false } ] }, { "qid": "KOL-2023-07-3617-Q003", "text": "how copper tube is connected to each other in evaporator", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "KOL-2023-07-3617", "tray": "new", "candidates": [ { "answer_id": "STHX-008", "score": 0.6419630646705627, "sibling_score": 0.6419630646705627, "answer_score": null, "sibling_qid": "MUM-2025-12-0989-Q007", "sibling_text": "main condenser how tubes are attached", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "STHX-08 — Condensers (main / auxiliary / dump): tube attachment, testing, renewal and safety", "cross_family": false }, { "answer_id": "BLR-TUBE-P01-003", "score": 0.5911672711372375, "sibling_score": 0.5911672711372375, "answer_score": null, "sibling_qid": "MUM-2022-04-0938-Q003", "sibling_text": "how tubes are connected to boiler said expanded and welded", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "02. Thermal expansion arrangements for boiler tubes", "cross_family": true }, { "answer_id": "STHX-001", "score": 0.5459731817245483, "sibling_score": 0.5459731817245483, "answer_score": 0.42669754624366757, "sibling_qid": "MUM-2026-04-1320-Q011", "sibling_text": "in shell and tube exchanger how tube fitted", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "STHX-01 — Construction, parts, materials, tube fitting, pass arrangement and flow", "cross_family": false } ] }, { "qid": "KOL-2023-07-3621-Q002", "text": "2-crew complaining about dryness and itching in AC AIR what action to be taken as a second engineer and rectification process", "family": "Refrigeration & AC", "subtopic": "Humidity", "tid": "KOL-2023-07-3621", "tray": "new", "candidates": [ { "answer_id": "HUM-334-002", "score": 0.6241084933280945, "sibling_score": 0.6241084933280945, "answer_score": 0.47069817185401913, "sibling_qid": "KOL-2016-07-1227-Q004", "sibling_text": "ac giving air with high humidity wat will u do", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "What action do you take when the AC delivers humid air, or the vessel is in a tropical / high-humidity climate?", "cross_family": false }, { "answer_id": "CFZ-330-003", "score": 0.6044235825538635, "sibling_score": 0.6044235825538635, "answer_score": null, "sibling_qid": "KOL-2025-07-1812-Q006", "sibling_text": "ac comfort zone ship is in extreme cold how comfort zone is maintained how you increase the relative humidity", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Summer and winter operation — how the comfort zone is held, and how relative humidity is raised", "cross_family": false }, { "answer_id": "RAC-MAT-320-005", "score": 0.6000806093215942, "sibling_score": 0.6000806093215942, "answer_score": 0.4252269744873047, "sibling_qid": "KOL-2020-03-2381-Q004", "sibling_text": "if engine control room ac is not working as 2nd engineer what actions you will take by rao sir", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "5. Engine-control-room AC — why it is required, and actions if it fails", "cross_family": false } ] }, { "qid": "KOL-2023-07-3627-Q001", "text": "Bottom bearing damaged beyond repair. Action (Unit cut off, lift con rod)", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Connecting Rod & Bolts", "tid": "KOL-2023-07-3627", "tray": "review", "candidates": [ { "answer_id": "BEB-C-002", "score": 0.6946432590484619, "sibling_score": 0.6946432590484619, "answer_score": 0.46811866760253906, "sibling_qid": "KOL-2021-08-1617-Q002", "sibling_text": "one unit bottom end bearing is beyond repair and no spares action", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bottom end bearing damaged, no spare — action to reach port without damaging the pin", "cross_family": false }, { "answer_id": "BEB-A-001", "score": 0.6455913186073303, "sibling_score": 0.6455913186073303, "answer_score": 0.46806496381759644, "sibling_qid": "KOL-2022-09-3572-Q003", "sibling_text": "bottom end bearing survey and removal procedure only", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Removing, overhauling, inspecting and refitting the bottom end bearing", "cross_family": false }, { "answer_id": "MAIN-BRG-B-001", "score": 0.639997661113739, "sibling_score": 0.639997661113739, "answer_score": null, "sibling_qid": "KOC-2026-05-0012-Q006", "sibling_text": "removal of bottom part of main bearing full process", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you open up / remove / overhaul a main-engine main bearing?", "cross_family": false } ] }, { "qid": "KOL-2023-07-3627-Q003", "text": "Rudder carrier bearing repair (Remetaling of white metal surface)", "family": "Steering Gear & Hydraulics", "subtopic": "Tiller / Rudder Stock", "tid": "KOL-2023-07-3627", "tray": "new", "candidates": [ { "answer_id": "PRE-TEN-001", "score": 0.6021904349327087, "sibling_score": 0.6021904349327087, "answer_score": null, "sibling_qid": "MUM-2026-09-3970-Q003", "sibling_text": "rudder carrier bearing renewal at sea", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Pre-stressing and pre-tensioning in main-engine bolting", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.5790565609931946, "sibling_score": 0.5790565609931946, "answer_score": null, "sibling_qid": "KOC-2026-04-0916-Q022", "sibling_text": "rudder internal coating", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "RUD-DROP-003", "score": 0.5752400755882263, "sibling_score": 0.5752400755882263, "answer_score": null, "sibling_qid": "KOL-2024-03-3677-Q002", "sibling_text": "how to check rudder drop where to fit trammel gauge rudder drop has reached its max limit and bearing white metal has gone how u ll proceed with its repair and what you ll do to bearing", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Rudder drop at the limit: the decision", "cross_family": false } ] }, { "qid": "KOL-2023-07-3627-Q004", "text": "Tests on steel plate intended to be used in ship yard. (Tensile, bend, impact)", "family": "NDT & Material Testing", "subtopic": "Impact / Charpy", "tid": "KOL-2023-07-3627", "tray": "review", "candidates": [ { "answer_id": "PLT-DBL-004", "score": 0.6683849096298218, "sibling_score": 0.6683849096298218, "answer_score": 0.5400115191936493, "sibling_qid": "KOL-2025-07-3817-Q003", "sibling_text": "on steel plate to fitted on ship structure what all test to be done", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "What tests are carried out on a new / newly-fitted steel plate?", "cross_family": true }, { "answer_id": "NDT-METH-P02-002", "score": 0.6619939804077148, "sibling_score": 0.6619939804077148, "answer_score": null, "sibling_qid": "MUM-2025-08-2353-Q006", "sibling_text": "u r to cut a corroded steel plate from ship s hull and it is to be welded witn new plate what test are to be carried out on the plate", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "2. Ultrasonic Testing & Thickness Gauging", "cross_family": false }, { "answer_id": "MATPROP-A-004", "score": 0.635934054851532, "sibling_score": 0.635934054851532, "answer_score": null, "sibling_qid": "KOL-2019-03-1443-Q004", "sibling_text": "malleability what components of ship are tested for them", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Mechanical properties", "cross_family": false } ] }, { "qid": "KOL-2023-07-4025-Q002", "text": "What sort of ships you have done ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2023-07-4025", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.7066843509674072, "sibling_score": 0.7066843509674072, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q002", "sibling_text": "what type of ship you have done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.6745474934577942, "sibling_score": 0.6745474934577942, "answer_score": 0.4336353152990341, "sibling_qid": "MUM-2026-02-0731-Q002", "sibling_text": "what type of ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.6639447212219238, "sibling_score": 0.6639447212219238, "answer_score": 0.43511911034584044, "sibling_qid": "KOC-2026-02-0833-Q005", "sibling_text": "types of ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "KOL-2023-07-4025-Q006", "text": "What is MARPOL Annex 2 ? Categories ? Discharge criteria of Category X ?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "Marpol Annex Certificates", "tid": "KOL-2023-07-4025", "tray": "review", "candidates": [ { "answer_id": "AII-DISCH-002", "score": 0.7340666055679321, "sibling_score": 0.7340666055679321, "answer_score": 0.5436715841293335, "sibling_qid": "KOL-2026-02-1187-Q001", "sibling_text": "marpol annex 2 discharge criteria of category x", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Explain the Category X, Y and Z chemical cargo residue discharge criteria", "cross_family": true }, { "answer_id": "CHEM-PA-001", "score": 0.624696671962738, "sibling_score": 0.624696671962738, "answer_score": null, "sibling_qid": "KOL-2022-08-0673-Q002", "sibling_text": "dicharge criteria according to marpol annex2", "sibling_family": "MARPOL - Annex II (NLS)", "via": "sibling", "answer_title": "Scope and applicability of MARPOL Annex II", "cross_family": true }, { "answer_id": "CHEM-PA-005", "score": 0.6129338145256042, "sibling_score": 0.6129338145256042, "answer_score": null, "sibling_qid": "KOL-2023-09-0768-Q005", "sibling_text": "discharge criteria of marpol annexe ii", "sibling_family": "MARPOL - Annex II (NLS)", "via": "sibling", "answer_title": "Discharge criteria for NLS cargo residues, by category", "cross_family": true } ] }, { "qid": "KOL-2023-08-0761-Q005", "text": "Mlc title and explain 5 one And your know rk Paul x questions", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOL-2023-08-0761", "tray": "new", "candidates": [ { "answer_id": "MCR-NOR-001", "score": 0.45085570216178894, "sibling_score": 0.45085570216178894, "answer_score": null, "sibling_qid": "KOL-2020-11-1566-Q003", "sibling_text": "what is mcr and ncr then significance of both then ncr 85 why x questions", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "MCR and NCR — what they are, the difference, and why NCR is taken at about 85% of MCR", "cross_family": true }, { "answer_id": "MLC-WRH-B-001", "score": 0.4323394298553467, "sibling_score": 0.4323394298553467, "answer_score": null, "sibling_qid": "KOC-2026-05-2135-Q011", "sibling_text": "mlc titles explain title 1 explain dmlc part 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "SOLAS-CH-015", "score": 0.42688894271850586, "sibling_score": 0.42688894271850586, "answer_score": null, "sibling_qid": "KOC-2023-10-0227-Q008", "sibling_text": "how many chapters in solas and what are they paul sir no questions", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS chapters overview - current count and scope", "cross_family": true } ] }, { "qid": "KOL-2023-08-0762-Q001", "text": "Type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2023-08-0762", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8362665176391602, "sibling_score": 0.8362665176391602, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8014071583747864, "sibling_score": 0.8014071583747864, "answer_score": 0.5467351317405701, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.7999894022941589, "sibling_score": 0.7999894022941589, "answer_score": 0.5214929342269897, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "KOL-2023-08-0764-Q002", "text": "How semi balanced rudder is connected to the ship ( strengthening member)", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2023-08-0764", "tray": "new", "candidates": [ { "answer_id": "TRS-002", "score": 0.6204512119293213, "sibling_score": 0.6204512119293213, "answer_score": null, "sibling_qid": "KOC-2026-05-0004-Q005", "sibling_text": "how rudder is connected to rudder carrier bearing", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.597180962562561, "sibling_score": 0.597180962562561, "answer_score": null, "sibling_qid": "MUM-2026-06-3584-Q005", "sibling_text": "what takes weight of rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "STEER-055-A-003", "score": 0.564973771572113, "sibling_score": 0.564973771572113, "answer_score": null, "sibling_qid": "KOL-2021-01-3371-Q005", "sibling_text": "ship in rough weather rudder getting shock due to waves what arrangement to absorb such shocks preventing false feedback to system", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Hunting gear, floating lever and buffer spring", "cross_family": false } ] }, { "qid": "KOL-2023-08-0764-Q008", "text": "different types of drill specially Ship shore drill", "family": "ISM Code", "subtopic": "SMS / Functional Requirements", "tid": "KOL-2023-08-0764", "tray": "new", "candidates": [ { "answer_id": "ISM-AUD-P02-004", "score": 0.5998139977455139, "sibling_score": 0.5998139977455139, "answer_score": null, "sibling_qid": "KOC-2024-07-0358-Q005", "sibling_text": "drill regulation", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "SMS contents, manuals, documents and drill records onboard", "cross_family": false }, { "answer_id": "SOPEP-004", "score": 0.5885542035102844, "sibling_score": 0.5885542035102844, "answer_score": null, "sibling_qid": "KOC-2024-02-0301-Q015", "sibling_text": "ship shore drill hw will you do and who are all the parties involved i said ship company flag state rescue coordination team he want one more", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "SOPEP vs SMPEP and Other Shipboard Plans; Drills", "cross_family": true }, { "answer_id": "WTGS-325-004", "score": 0.5584603548049927, "sibling_score": 0.5584603548049927, "answer_score": 0.447370970249176, "sibling_qid": "CHE-2025-08-0415-Q002", "sibling_text": "type of drill bit", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Drill bits & drilling: ordering, portable vs fixed machine", "cross_family": true } ] }, { "qid": "KOL-2023-08-0765-Q008", "text": "Boiler water level control working. About constant leg and variable leg in same.", "family": "Boilers - Operations & Firing", "subtopic": "Black Smoke / Panting", "tid": "KOL-2023-08-0765", "tray": "review", "candidates": [ { "answer_id": "DP-TX-003", "score": 0.8457741141319275, "sibling_score": 0.8457741141319275, "answer_score": null, "sibling_qid": "KOL-2017-10-1328-Q003", "sibling_text": "boiler water level controller diagram variable and constant leg", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler feed-water control with the DP cell — single, two and three-element", "cross_family": false }, { "answer_id": "LWL-002", "score": 0.7063681483268738, "sibling_score": 0.7063681483268738, "answer_score": 0.5481766730546951, "sibling_qid": "KOC-2023-08-1279-Q007", "sibling_text": "3 point control 2 point control and 1 point control boiler water level", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "What is the difference between one-, two- and three-element boiler water level control, and what are the water level controllers?", "cross_family": false }, { "answer_id": "LWL-001", "score": 0.6978042721748352, "sibling_score": 0.6978042721748352, "answer_score": null, "sibling_qid": "KOC-2022-05-1183-Q004", "sibling_text": "3 elements control in boiler water level control why", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Explain three-element boiler water level control — the three elements, how it removes swell and shrinkage, and how the PID works", "cross_family": false } ] }, { "qid": "KOL-2023-08-1749-Q003", "text": "Boiler safety valve setting procedure", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2023-08-1749", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-001", "score": 0.8569404482841492, "sibling_score": 0.8569404482841492, "answer_score": null, "sibling_qid": "KOC-2026-05-0003-Q005", "sibling_text": "boiler safety valve setting procedure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.8243114352226257, "sibling_score": 0.8243114352226257, "answer_score": null, "sibling_qid": "MUM-2026-03-2935-Q013", "sibling_text": "boiler safety valve setting in presence of surveyor after survey", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.8088051080703735, "sibling_score": 0.8088051080703735, "answer_score": null, "sibling_qid": "KOC-2026-05-0034-Q010", "sibling_text": "boiler safety valve types and how safety valve is set complete procedures", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOL-2023-08-1752-Q003", "text": "Why concentric valves are used in air compressor", "family": "Air Compressor", "subtopic": "Reciprocating Compressor", "tid": "KOL-2023-08-1752", "tray": "new", "candidates": [ { "answer_id": "MAC-598-001", "score": 0.5597218871116638, "sibling_score": 0.5597218871116638, "answer_score": 0.4754054605960846, "sibling_qid": "MUM-2025-09-2429-Q005S2", "sibling_text": "decider ques the compressor valve has so many parts why the construction of valve is so complex", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "The main air compressor valve — arrangement, parts, and why the construction is so complex", "cross_family": false }, { "answer_id": "EXHV-297-008", "score": 0.5455992221832275, "sibling_score": 0.5455992221832275, "answer_score": null, "sibling_qid": "MUM-2026-05-3155-Q009", "sibling_text": "ae exhaust valves have concentric springs what is the purpose of it", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "2-stroke vs 4-stroke exhaust valve operation; the AE conical spring", "cross_family": true }, { "answer_id": "AC-STAGE-001", "score": 0.5416858792304993, "sibling_score": 0.5416858792304993, "answer_score": null, "sibling_qid": "KOL-2017-03-3039-Q005", "sibling_text": "air compressor why multi stage why intetcooler why air passes through tubes not in the casing surrounding the tubes of the cooler why bursting disc is given material", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Why multistage compression — advantages over single-stage", "cross_family": false } ] }, { "qid": "KOL-2023-08-1752-Q007", "text": "What is FQS lever?Function As per imo guidelines tell me all the grades of fuel( I simply said I don’t know, in which he said as a 2nd engineer u must know)", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Quality / CCAI", "tid": "KOL-2023-08-1752", "tray": "review", "candidates": [ { "answer_id": "FQCC-583-A-003", "score": 0.6624360680580139, "sibling_score": 0.6624360680580139, "answer_score": 0.5025213629007339, "sibling_qid": "CHE-2026-08-3872-Q002", "sibling_text": "fuel oil grade", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel grades and marine fuel naming", "cross_family": false }, { "answer_id": "FQCC-583-A-002", "score": 0.6100208163261414, "sibling_score": 0.6100208163261414, "answer_score": null, "sibling_qid": "MUM-2022-10-0055-Q002", "sibling_text": "bunker fuel under which iso", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "ISO 8217 — the standard, and what changed from 2017 to 2024", "cross_family": false }, { "answer_id": "FIVA-220-003", "score": 0.6039020419120789, "sibling_score": 0.6039020419120789, "answer_score": null, "sibling_qid": "MUM-2025-10-0983-Q007", "sibling_text": "fiva fail safe how to measure quantity of fuel oil injected in generator floc point coefficient of refrigeration why not ton of refrigeration and cross question", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "FIVA control signal, controller type, voice-coil drive and fail-safe behaviour", "cross_family": false } ] }, { "qid": "KOL-2023-08-1754-Q004", "text": "Why cast iron not using for crankshaft in large slow speed engine?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft Material", "tid": "KOL-2023-08-1754", "tray": "new", "candidates": [ { "answer_id": "CRK-DEFL-001", "score": 0.6308915615081787, "sibling_score": 0.6308915615081787, "answer_score": null, "sibling_qid": "CHE-2026-05-0648-Q005", "sibling_text": "stresses on crank shaft not accepting any stress", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Purpose, timing and scope of crankshaft deflection", "cross_family": false }, { "answer_id": "HT-A-001", "score": 0.6226261258125305, "sibling_score": 0.6226261258125305, "answer_score": null, "sibling_qid": "MUM-2026-05-3283-Q006", "sibling_text": "crankshaft material and heat treatment", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Heat treatment: what it is, the main methods, and why it is done", "cross_family": false }, { "answer_id": "CRANK-217-001", "score": 0.5986072421073914, "sibling_score": 0.5986072421073914, "answer_score": null, "sibling_qid": "MUM-2026-05-3266-Q006", "sibling_text": "material of crankshaft", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankshaft types and how the type is identified", "cross_family": false } ] }, { "qid": "KOL-2023-08-1934-Q002", "text": "Cylinder lub oil properties ? Flash point ? How much is combustion temperature inside cylinder ? What is detergency and dispersancy ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Cylinder Lubrication", "tid": "KOL-2023-08-1934", "tray": "review", "candidates": [ { "answer_id": "CYL-LUB-B-002", "score": 0.729472279548645, "sibling_score": 0.729472279548645, "answer_score": 0.5480038583278656, "sibling_qid": "MUM-2026-05-3345-Q009", "sibling_text": "cylinder lub oil properties", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Cylinder oil — required properties; can any oil be used?", "cross_family": false }, { "answer_id": "LO-TEST-P01-005", "score": 0.7058522701263428, "sibling_score": 0.7058522701263428, "answer_score": 0.5863227248191833, "sibling_qid": "CHE-2026-05-0572-Q003", "sibling_text": "cylinder head lub oil properties", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Lube-oil properties, types and selection by duty", "cross_family": false }, { "answer_id": "CYL-LUB-B-003", "score": 0.6862062811851501, "sibling_score": 0.6862062811851501, "answer_score": null, "sibling_qid": "KOL-2020-12-1889-Q003", "sibling_text": "cylinder oil selection criteria", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "BN / TBN selection and sulphur matching (HSFO, VLSFO, SECA)", "cross_family": false } ] }, { "qid": "KOL-2023-08-3629-Q002", "text": "what is bumping clearance. How to check . How to increase and decrease", "family": "Air Compressor", "subtopic": "Reciprocating Compressor", "tid": "KOL-2023-08-3629", "tray": "review", "candidates": [ { "answer_id": "RUN-CLR-002", "score": 0.7054972648620605, "sibling_score": 0.7054972648620605, "answer_score": 0.4767625451087952, "sibling_qid": "MUM-2026-06-3501-Q002", "sibling_text": "bumping clearance how to adjust", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Bumping clearance — what it is, why it matters, effects, and how it is adjusted", "cross_family": false }, { "answer_id": "AC-VE-005", "score": 0.6648669838905334, "sibling_score": 0.6648669838905334, "answer_score": 0.4886832654476166, "sibling_qid": "CHE-2026-02-0334-Q005S4", "sibling_text": "bumping clearance importance", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "If bumping clearance is more or less, what happens, and how do you reduce or adjust it?", "cross_family": false }, { "answer_id": "AC-VE-001", "score": 0.6298580765724182, "sibling_score": 0.6298580765724182, "answer_score": null, "sibling_qid": "KOL-2024-07-1947-Q010", "sibling_text": "define volumetric efficiency if drop what you do 3 methods to adjust bumping clearance", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Volumetric efficiency: define it, and if it drops how do you improve it (with bumping clearance)?", "cross_family": false } ] }, { "qid": "KOL-2023-08-3631-Q009", "text": "Safety valve setting procedure", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2023-08-3631", "tray": "review", "candidates": [ { "answer_id": "ECON-EGB-004", "score": 0.8014358878135681, "sibling_score": 0.8014358878135681, "answer_score": 0.5823642998933792, "sibling_qid": "CHE-2026-05-0601-Q010", "sibling_text": "safety valve setting procedure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Safety-valve setting after overhaul & why set higher than the boiler", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.7606309056282043, "sibling_score": 0.7606309056282043, "answer_score": null, "sibling_qid": "MUM-2026-02-1255-Q006", "sibling_text": "setting of safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.7363074421882629, "sibling_score": 0.7363074421882629, "answer_score": null, "sibling_qid": "KOC-2026-09-2205-Q019", "sibling_text": "setting safety valve infront of surveyor", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false } ] }, { "qid": "KOL-2023-08-3633-Q004", "text": "reaming?tool?selection of reamer tool size?", "family": "Workshop & Welding", "subtopic": "Pipe Fabrication", "tid": "KOL-2023-08-3633", "tray": "review", "candidates": [ { "answer_id": "LATHE-TD-004", "score": 0.6711320281028748, "sibling_score": 0.6711320281028748, "answer_score": 0.5494581162929535, "sibling_qid": "KOL-2016-08-2996-Q006", "sibling_text": "hand reamer machine reamer", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Reaming — purpose, use, and identifying reamers", "cross_family": false }, { "answer_id": "WTGS-325-004", "score": 0.5558248162269592, "sibling_score": 0.5558248162269592, "answer_score": null, "sibling_qid": "KOL-2023-01-3588-Q002", "sibling_text": "drill bit specifications to order", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Drill bits & drilling: ordering, portable vs fixed machine", "cross_family": false }, { "answer_id": "LATHE-TD-003", "score": 0.5461116433143616, "sibling_score": 0.5461116433143616, "answer_score": null, "sibling_qid": "MUM-2025-11-2495-Q004", "sibling_text": "type of taps and dies", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Thread cutting — lathe, taps & dies, TPI and tapping-drill size", "cross_family": false } ] }, { "qid": "KOL-2023-08-3954-Q003", "text": "Safety valve all check", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2023-08-3954", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P01-001", "score": 0.7056607604026794, "sibling_score": 0.7056607604026794, "answer_score": null, "sibling_qid": "MUM-2026-03-2589-Q003", "sibling_text": "checks on safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.6228935122489929, "sibling_score": 0.6228935122489929, "answer_score": null, "sibling_qid": "MUM-2026-09-3885-Q006", "sibling_text": "all types of safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-003", "score": 0.5724437832832336, "sibling_score": 0.5724437832832336, "answer_score": 0.4347093403339386, "sibling_qid": "MUM-2023-08-2191-Q004", "sibling_text": "safety valve accumulation pr test", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "The accumulation test and the safety valve — required lift, how lift and capacity are verified, and why accumulation must stay inside the limit", "cross_family": false } ] }, { "qid": "KOL-2023-08-3954-Q004", "text": "Main engine out of operations and vessel is toe by small vessel how to lock the rudder.", "family": "Steering Gear & Hydraulics", "subtopic": "Tiller / Rudder Stock", "tid": "KOL-2023-08-3954", "tray": "review", "candidates": [ { "answer_id": "STEER-055-A-004", "score": 0.7171289324760437, "sibling_score": 0.7171289324760437, "answer_score": null, "sibling_qid": "MUM-2026-07-3762-Q009", "sibling_text": "rudder locking", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Hydraulic faults — air, sluggish response, locking, leakage", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.7076717615127563, "sibling_score": 0.7076717615127563, "answer_score": null, "sibling_qid": "KOC-2026-04-0891-Q002", "sibling_text": "rudder after dock", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "STEER-055-A-001", "score": 0.680685818195343, "sibling_score": 0.680685818195343, "answer_score": null, "sibling_qid": "MUM-2026-04-2110-Q001", "sibling_text": "steering system in anchor stopped or running", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Steering gear — construction, types and working", "cross_family": false } ] }, { "qid": "KOL-2023-08-4026-Q002", "text": "Eng specification in details", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOL-2023-08-4026", "tray": "review", "candidates": [ { "answer_id": "ENG-NOM-006", "score": 0.6579825282096863, "sibling_score": 0.6579825282096863, "answer_score": null, "sibling_qid": "CHE-2026-05-0585-Q001", "sibling_text": "main engine specification complete", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Short-form asks: SMC-C, LMC, and ME vs MC quickly", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.5810662508010864, "sibling_score": 0.5810662508010864, "answer_score": null, "sibling_qid": "MUM-2026-05-3197-Q001", "sibling_text": "engine nomemature in detail", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false }, { "answer_id": "ETP-344-P03-003", "score": 0.4021913945674896, "sibling_score": null, "answer_score": 0.4021913945674896, "sibling_qid": "", "sibling_text": "engine nomenclature layout mark number and engine constant designation order man b w cylinders stroke bore letter k l s g bore in cm m programme concept e electronic c camshaft design c compact b camshaft controlled exhaust hybrid mark number gi if gas injection tier rating stroke bore letters k short l long s super long g ultra long green the ratios are approximate design values not exact", "sibling_family": "", "via": "answer_title", "answer_title": "Engine nomenclature, layout, mark number and engine constant", "cross_family": false } ] }, { "qid": "KOL-2023-08-4026-Q004", "text": "What is the importance of VEC and how it is being utilized", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "VIT Mechanism", "tid": "KOL-2023-08-4026", "tray": "new", "candidates": [ { "answer_id": "ETP-344-P03-011", "score": 0.5827106237411499, "sibling_score": 0.5827106237411499, "answer_score": 0.2690487176179886, "sibling_qid": "CHE-2026-03-0250-Q005", "sibling_text": "what is vec", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "VEC — Variable Exhaust valve Closing", "cross_family": true }, { "answer_id": "VOC-MGT-003", "score": 0.5824222564697266, "sibling_score": 0.5824222564697266, "answer_score": 0.2412579208612442, "sibling_qid": "MUM-2025-12-1236-Q004", "sibling_text": "what is vec", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Managing and controlling VOC - VECS and onboard measures", "cross_family": true }, { "answer_id": "EXHV-080-BF37-001", "score": 0.5718150734901428, "sibling_score": 0.5718150734901428, "answer_score": 0.2538909763097763, "sibling_qid": "KOL-2023-09-1755-Q002", "sibling_text": "advantage of vec", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "What is variable exhaust valve closing (VEC)? Components and advantages.", "cross_family": true } ] }, { "qid": "KOL-2023-09-0767-Q003", "text": "What is DMLC 2 Contents. Who issue", "family": "MLC", "subtopic": "MLC / DMLC / Work-Rest", "tid": "KOL-2023-09-0767", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.5799155831336975, "sibling_score": 0.5799155831336975, "answer_score": 0.38031629770994185, "sibling_qid": "KOC-2025-06-0613-Q011", "sibling_text": "what is dmlc 1 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "FLAG-ST-007", "score": 0.2855504214763641, "sibling_score": null, "answer_score": 0.2855504214763641, "sibling_qid": "", "sibling_text": "flag state enforcement of mlc compliance mlc 2006 the fourth pillar with solas marpol and stcw the flag enforces it on its own ships mechanism dmlc part i flag s national requirements part ii owner s measures the maritime labour certificate which the flag or its ro issues after inspection", "sibling_family": "", "via": "answer_title", "answer_title": "Flag State enforcement of MLC compliance", "cross_family": false }, { "answer_id": "AVICERT-005", "score": 0.2644594252109527, "sibling_score": null, "answer_score": 0.2644594252109527, "sibling_qid": "", "sibling_text": "which annex vi documents are generated and maintained on board rather than issued by the administration and who issues each certificate administration ro issues iapp ieec applicable eiapps the integrated dcs cii statement of compliance confirmation of compliance seemp ii iii company develops maintains the seemp", "sibling_family": "", "via": "answer_title", "answer_title": "Which Annex VI documents are generated and maintained on board rather than issued by the Administration, and who issues each certificate?", "cross_family": false } ] }, { "qid": "KOL-2023-09-0768-Q004", "text": "Dmlc", "family": "MLC", "subtopic": "MLC / DMLC / Work-Rest", "tid": "KOL-2023-09-0768", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.7625060677528381, "sibling_score": 0.7625060677528381, "answer_score": 0.3292631238698959, "sibling_qid": "MUM-2026-03-0817-Q002", "sibling_text": "dmlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "DCP-PPC-003", "score": 0.3122547298669815, "sibling_score": null, "answer_score": 0.3122547298669815, "sibling_qid": "", "sibling_text": "c3 dcp general working advantages disadvantages common issues", "sibling_family": "", "via": "answer_title", "answer_title": "C3 — DCP — General Working, Advantages, Disadvantages & Common Issues", "cross_family": false }, { "answer_id": "ENG-NOM-006", "score": 0.2822224587202072, "sibling_score": null, "answer_score": 0.2822224587202072, "sibling_qid": "", "sibling_text": "short form asks smc c lmc and me vs mc quickly smc c super long stroke man programme camshaft controlled compact lmc l long stroke the l is the stroke letter not a control or compact letter", "sibling_family": "", "via": "answer_title", "answer_title": "Short-form asks: SMC-C, LMC, and ME vs MC quickly", "cross_family": false } ] }, { "qid": "KOL-2023-09-0768-Q008", "text": "Type of shore receptation facility discharge connection under all Marpol annex ,", "family": "MARPOL - General & Compliance", "subtopic": "Port Reception Facilities", "tid": "KOL-2023-09-0768", "tray": "review", "candidates": [ { "answer_id": "MARPOL-OV-005", "score": 0.8928181529045105, "sibling_score": 0.8928181529045105, "answer_score": 0.5520000785589217, "sibling_qid": "KOL-2025-09-1091-Q009", "sibling_text": "type of shore receptation facility discharge connection under all marpol annex", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Port reception facilities", "cross_family": false }, { "answer_id": "ISC-329-004", "score": 0.6969777941703796, "sibling_score": 0.6969777941703796, "answer_score": 0.5596603661775589, "sibling_qid": "KOL-2023-10-0783-Q004", "sibling_text": "standard discharge connection international shore coupling difference", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "What is the difference between the SOLAS international shore connection and the MARPOL standard discharge connection?", "cross_family": true }, { "answer_id": "ISC-329-002", "score": 0.6580681800842285, "sibling_score": 0.6580681800842285, "answer_score": null, "sibling_qid": "MUM-2025-09-1639-Q005", "sibling_text": "shore connection procedure", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "How is the international shore connection connected and used when taking fire-fighting assistance from shore or another ship?", "cross_family": true } ] }, { "qid": "KOL-2023-09-0770-Q006", "text": "internal party to ism..cross questions", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOL-2023-09-0770", "tray": "new", "candidates": [ { "answer_id": "ISM-2E-B-001", "score": 0.587477445602417, "sibling_score": 0.587477445602417, "answer_score": null, "sibling_qid": "KOC-2026-03-0866-Q002", "sibling_text": "ism survey and cross questions", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "B1. Preparing for an ISM audit as Second Engineer", "cross_family": false }, { "answer_id": "ISM-AUD-P03-002", "score": 0.5873859524726868, "sibling_score": 0.5873859524726868, "answer_score": null, "sibling_qid": "KOC-2025-10-0676-Q002", "sibling_text": "ism survey and cross questions", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM audit / survey — what it is, who conducts it, what it covers onboard", "cross_family": false }, { "answer_id": "ICCP-119-P01-001", "score": 0.5578209757804871, "sibling_score": 0.5578209757804871, "answer_score": null, "sibling_qid": "KOC-2025-10-1584-Q011", "sibling_text": "iccp and too many cross which i don t remember he used to ask cross depending upon our answer internal", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP — purpose, principle and basic working", "cross_family": true } ] }, { "qid": "KOL-2023-09-0771-Q004", "text": "DMLC 1 full details", "family": "MLC", "subtopic": "MLC / DMLC / Work-Rest", "tid": "KOL-2023-09-0771", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.5908430218696594, "sibling_score": 0.5908430218696594, "answer_score": 0.3520349979400635, "sibling_qid": "MUM-2026-06-3623-Q001", "sibling_text": "what dmlc 1 contains", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "STARTER-DEC-B-003", "score": 0.2445913553237915, "sibling_score": null, "answer_score": 0.2445913553237915, "sibling_qid": "", "sibling_text": "dol starter use current range and limits dol a contactor applying full line voltage overload relay no volt release full voltage full inrush 6 8x flc representative and full starting torque", "sibling_family": "", "via": "answer_title", "answer_title": "DOL starter — use, current, range and limits", "cross_family": false }, { "answer_id": "ENG-NOM-006", "score": 0.2440658688545227, "sibling_score": null, "answer_score": 0.2440658688545227, "sibling_qid": "", "sibling_text": "short form asks smc c lmc and me vs mc quickly smc c super long stroke man programme camshaft controlled compact lmc l long stroke the l is the stroke letter not a control or compact letter", "sibling_family": "", "via": "answer_title", "answer_title": "Short-form asks: SMC-C, LMC, and ME vs MC quickly", "cross_family": false } ] }, { "qid": "KOL-2023-09-0771-Q010", "text": "What is tripartite agreement.", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOL-2023-09-0771", "tray": "new", "candidates": [ { "answer_id": "SCR-306-B-003", "score": 0.40673401951789856, "sibling_score": 0.40673401951789856, "answer_score": null, "sibling_qid": "KOC-2025-05-1529-Q008", "sibling_text": "triads internal", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "TRIAC and DIAC — construction, triggering and use", "cross_family": true }, { "answer_id": "MLC-WRH-B-010", "score": 0.3794371485710144, "sibling_score": 0.3794371485710144, "answer_score": null, "sibling_qid": "MUM-2025-11-0573-Q005", "sibling_text": "which parties are a part of cba", "sibling_family": "MLC", "via": "sibling", "answer_title": "SEA, the CBA parties, and how wages are set — action on non-payment", "cross_family": false }, { "answer_id": "IMO-CODES-P02-002", "score": 0.3566135764122009, "sibling_score": 0.3566135764122009, "answer_score": null, "sibling_qid": "KOL-2021-12-0584-Q001", "sibling_text": "ratification process of a circular by a contracting government he said three processes are there", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Tacit acceptance, ratification, acceptance, approval and accession", "cross_family": true } ] }, { "qid": "KOL-2023-09-0771-Q011", "text": "MLC 5 titles.", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOL-2023-09-0771", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.536371648311615, "sibling_score": 0.536371648311615, "answer_score": 0.25973751991987226, "sibling_qid": "KOC-2026-05-2135-Q011", "sibling_text": "mlc titles explain title 1 explain dmlc part 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "CLC-CIV-B-003", "score": 0.4375934600830078, "sibling_score": 0.4375934600830078, "answer_score": null, "sibling_qid": "KOL-2020-02-0392-Q002", "sibling_text": "llmc prescise 5 words", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "LLMC: purpose, scope and limitation of maritime claims", "cross_family": true }, { "answer_id": "MLC-WRH-B-006", "score": 0.4364359974861145, "sibling_score": 0.4364359974861145, "answer_score": 0.23829737305641174, "sibling_qid": "MUM-2026-06-3645-Q001", "sibling_text": "certificates of mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false } ] }, { "qid": "KOL-2023-09-0771-Q012", "text": "What is CBA .", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOL-2023-09-0771", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-010", "score": 0.5948894619941711, "sibling_score": 0.5948894619941711, "answer_score": 0.2767361104488373, "sibling_qid": "MUM-2025-11-0573-Q005", "sibling_text": "which parties are a part of cba", "sibling_family": "MLC", "via": "sibling", "answer_title": "SEA, the CBA parties, and how wages are set — action on non-payment", "cross_family": false }, { "answer_id": "CB033-C-001", "score": 0.45398956537246704, "sibling_score": 0.45398956537246704, "answer_score": null, "sibling_qid": "CHE-2026-04-0370-Q002", "sibling_text": "what is acb", "sibling_family": "Electrical - Switchgear & Protection", "via": "sibling", "answer_title": "How do you carry out maintenance and testing on an ACB / main circuit breaker?", "cross_family": true }, { "answer_id": "CB-ACBVCBSF6-E-001", "score": 0.44375061988830566, "sibling_score": 0.44375061988830566, "answer_score": null, "sibling_qid": "MUM-2025-07-1556-Q002", "sibling_text": "cb types", "sibling_family": "", "via": "sibling", "answer_title": "What are the common types of circuit breakers used onboard and where are ACB, MCB, MCCB, VCB and SF6 breakers applied?", "cross_family": false } ] }, { "qid": "KOL-2023-09-0771-Q013", "text": "Who decides Seafares articles of agreement and all terms in it.", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOL-2023-09-0771", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-010", "score": 0.4516109347343445, "sibling_score": null, "answer_score": 0.4516109347343445, "sibling_qid": "", "sibling_text": "sea the cba parties and how wages are set action on non payment regulation 2 1 standard a2 1 a clear written seafarers employment agreement signed by both the seafarer and the shipowner or a representative with the seafarer given an opportunity to examine and seek advice before signing the seafarer and the shipowner each hold a signed original the seafarer also gets a document containing a record ", "sibling_family": "", "via": "answer_title", "answer_title": "SEA, the CBA parties, and how wages are set — action on non-payment", "cross_family": false }, { "answer_id": "MLC-WRH-B-011", "score": 0.42729833722114563, "sibling_score": 0.42729833722114563, "answer_score": null, "sibling_qid": "MUM-2026-04-0914-Q007", "sibling_text": "what is the complaint procedure onboard for seafarer", "sibling_family": "MLC", "via": "sibling", "answer_title": "The on-board complaint and grievance procedure", "cross_family": false }, { "answer_id": "IMO-5PIL-005", "score": 0.42668402194976807, "sibling_score": 0.42668402194976807, "answer_score": null, "sibling_qid": "MUM-2026-02-0769-Q006", "sibling_text": "various conventions under imo for safety", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "IMO conventions for ship safety", "cross_family": true } ] }, { "qid": "KOL-2023-09-0772-Q001", "text": "Safety", "family": "", "subtopic": "High Voltage System", "tid": "KOL-2023-09-0772", "tray": "review", "candidates": [ { "answer_id": "REEF-SAFE-001", "score": 0.699542760848999, "sibling_score": 0.699542760848999, "answer_score": null, "sibling_qid": "MUM-2026-03-1306-Q024", "sibling_text": "refer safeties", "sibling_family": "Safety Management & Emergency", "via": "sibling", "answer_title": "Refrigeration plant and reefer-room safeties — what protects the machinery, and what protects the man?", "cross_family": false }, { "answer_id": "IGAT-583-001", "score": 0.6702312231063843, "sibling_score": 0.6702312231063843, "answer_score": null, "sibling_qid": "KOL-2017-03-0078-Q002", "sibling_text": "i g safeties", "sibling_family": "Cargo Ops - 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Planning overhaul when load-carrying capacity is low", "cross_family": true }, { "answer_id": "LS-IMB-A-001", "score": 0.5159493684768677, "sibling_score": 0.5159493684768677, "answer_score": null, "sibling_qid": "MUM-2024-04-0168-Q022", "sibling_text": "one generator load is low", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. 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AE decarb / overhaul — preparation and full procedure", "cross_family": false }, { "answer_id": "AEDEC-291-003", "score": 0.6567259430885315, "sibling_score": 0.6567259430885315, "answer_score": null, "sibling_qid": "KOL-2018-08-3182-Q003", "sibling_text": "checks after generator decarb", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "3. Pre-start checks after decarb / recommissioning", "cross_family": false }, { "answer_id": "DCB-OVH-001", "score": 0.5977520942687988, "sibling_score": 0.5977520942687988, "answer_score": null, "sibling_qid": "MUM-2026-02-2572-Q002", "sibling_text": "me unit decarb preparation", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Preparing for main-engine / unit decarb as 2/E", "cross_family": true } ] }, { "qid": "KOL-2023-11-4029-Q001", "text": "Ext- P. Mukherjee Int- Sreenivasan Type of engines sailed on", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOL-2023-11-4029", "tray": "new", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.6352670788764954, "sibling_score": 0.6352670788764954, "answer_score": null, "sibling_qid": "CHE-2026-03-0250-Q003", "sibling_text": "type of engines sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.5991484522819519, "sibling_score": 0.5991484522819519, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q001", "sibling_text": "type of ship sailed and engines details", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ETP-344-P03-001", "score": 0.5662285685539246, "sibling_score": 0.5662285685539246, "answer_score": null, "sibling_qid": "MUM-2026-06-3492-Q002", "sibling_text": "which type of engines worked on", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false } ] }, { "qid": "KOL-2023-11-4029-Q005", "text": "What is condition of class.", "family": "Surveys - Statutory", "subtopic": "Condition of Class", "tid": "KOL-2023-11-4029", "tray": "review", "candidates": [ { "answer_id": "COC-001", "score": 0.8084678053855896, "sibling_score": 0.8084678053855896, "answer_score": 0.406412461400032, "sibling_qid": "KOC-2026-04-0899-Q005", "sibling_text": "condition of class", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is a Condition of Class? Give examples, say where it is found, how much time is given to rectify it, and what happens if it is not met in time.", "cross_family": false }, { "answer_id": "COC-002", "score": 0.7595522999763489, "sibling_score": 0.7595522999763489, "answer_score": 0.4190646678209305, "sibling_qid": "KOL-2016-12-0036-Q002", "sibling_text": "condition of class condition assessignment", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the difference between a Condition of Class and a Condition of Assignment?", "cross_family": false }, { "answer_id": "CSAS-SURV-001", "score": 0.39904458075761795, "sibling_score": null, "answer_score": 0.39904458075761795, "sibling_qid": "", "sibling_text": "certificate of class what it is who issues it what class looks after issuedby the classification society irs lr dnv abs not by flag or imo means built and maintained to the society s rules condition satisfactory at the last survey", "sibling_family": "", "via": "answer_title", "answer_title": "Certificate of class — what it is, who issues it, what class looks after", "cross_family": false } ] }, { "qid": "KOL-2023-12-0788-Q005", "text": "Who signs chartered party?", "family": "Other Conventions", "subtopic": "CLC / Civil Liability", "tid": "KOL-2023-12-0788", "tray": "new", "candidates": [ { "answer_id": "HKC-IHM-B-002", "score": 0.35645949840545654, "sibling_score": 0.35645949840545654, "answer_score": null, "sibling_qid": "KOC-2023-10-0221-Q004", "sibling_text": "hong kong convention and certificates involved", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What surveys, certificates and documents go with the IHM and the Hong Kong Convention?", "cross_family": false }, { "answer_id": "HKC-IHM-A-001", "score": 0.35176417231559753, "sibling_score": 0.35176417231559753, "answer_score": null, "sibling_qid": "MUM-2026-09-3874-Q003", "sibling_text": "hongkong convention in detail and parts and certificates", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Hong Kong Convention — what it is and what it requires", "cross_family": false }, { "answer_id": "MLC-WRH-B-010", "score": 0.3465636372566223, "sibling_score": 0.3465636372566223, "answer_score": 0.3078869149088859, "sibling_qid": "MUM-2022-07-0013-Q007", "sibling_text": "who all are the parties to the cba", "sibling_family": "MLC", "via": "sibling", "answer_title": "SEA, the CBA parties, and how wages are set — action on non-payment", "cross_family": true } ] }, { "qid": "KOL-2023-12-0792-Q001", "text": "Int skd External Ganguly Type of ship?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2023-12-0792", "tray": "new", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.6027795672416687, "sibling_score": 0.6027795672416687, "answer_score": null, "sibling_qid": "MUM-2026-02-1280-Q001", "sibling_text": "type of ship done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "TONN-007", "score": 0.5793268084526062, "sibling_score": 0.5793268084526062, "answer_score": null, "sibling_qid": "MUM-2026-03-0839-Q001", "sibling_text": "type of ship and what is gt nt and displacement", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Differentiate GT, NT, GRT/NRT, DWT, Lightweight and Displacement", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.5782684683799744, "sibling_score": 0.5782684683799744, "answer_score": 0.40210653245449063, "sibling_qid": "CHE-2026-05-0614-Q001", "sibling_text": "start from type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "KOL-2023-12-0792-Q003", "text": "Continuos synopsis record and under which regulation.", "family": "Surveys - Statutory", "subtopic": "CSR / Continuous Synopsis Record", "tid": "KOL-2023-12-0792", "tray": "review", "candidates": [ { "answer_id": "CSR-585-001", "score": 0.7341346144676208, "sibling_score": 0.7341346144676208, "answer_score": 0.46848800778388977, "sibling_qid": "KOC-2025-08-0646-Q001", "sibling_text": "continuous synopsis record", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the Continuous Synopsis Record (CSR)? Explain its purpose and requirements.", "cross_family": false }, { "answer_id": "CSM-214-001", "score": 0.4486173689365387, "sibling_score": 0.4486173689365387, "answer_score": 0.3155144229531288, "sibling_qid": "KOC-2023-10-0225-Q009", "sibling_text": "csm he wants to know why called continuous", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "What CSM is, and why it is called “continuous”", "cross_family": true }, { "answer_id": "PMS-392-004", "score": 0.42684537172317505, "sibling_score": 0.42684537172317505, "answer_score": null, "sibling_qid": "KOC-2022-11-1796-Q009", "sibling_text": "how to check follow pms schedules while vessel is in continuous loading discharging", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Following PMS schedules and routine planned jobs during ship operations", "cross_family": false } ] }, { "qid": "KOL-2023-12-0798-Q002", "text": "CSR. no X questions. Its also important to mention safety management and security related details for CSR. Makes a better impression. CSR should have the details of who issued ISSC AND SMC as well along with all the other details. You can go throu SOLAS CH 11-1. It lists all the items that CSR needs to record. Surveyors looked satisfied.", "family": "Surveys - Statutory", "subtopic": "CSR / Continuous Synopsis Record", "tid": "KOL-2023-12-0798", "tray": "review", "candidates": [ { "answer_id": "CERT-LIST-P02-003", "score": 0.6531715393066406, "sibling_score": 0.6531715393066406, "answer_score": null, "sibling_qid": "KOL-2020-06-0411-Q003", "sibling_text": "sec cargo ship safety equipment cert", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Certificates that decide ship type and permitted cargo", "cross_family": false }, { "answer_id": "ISPS-SL-001", "score": 0.6412606835365295, "sibling_score": 0.6412606835365295, "answer_score": null, "sibling_qid": "MUM-2023-01-0082-Q001", "sibling_text": "solas ch 11 full details isps csr", "sibling_family": "ISPS", "via": "sibling", "answer_title": "The ISPS Code — purpose, scope and the SOLAS link", "cross_family": true }, { "answer_id": "ESP-B-002", "score": 0.6322051882743835, "sibling_score": 0.6322051882743835, "answer_score": null, "sibling_qid": "KOL-2021-02-0469-Q004", "sibling_text": "what is esp applied on which ship any new ship or any age criteria is there what is close up survey how bulkheads and beams come in close up visual range what do ship staff do in this to help is there anyother safety part mentioned in solas with regards to bulk", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Close-up survey, thickness gauging, substantial corrosion & renewal criteria", "cross_family": false } ] }, { "qid": "KOL-2023-12-1766-Q005", "text": "RO system starting from valve.", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "KOL-2023-12-1766", "tray": "new", "candidates": [ { "answer_id": "AIR-DIST-001", "score": 0.5216382145881653, "sibling_score": 0.5216382145881653, "answer_score": null, "sibling_qid": "KOL-2018-04-1367-Q005", "sibling_text": "4 starting process rotary valve operation", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Air distributor — construction, types and working", "cross_family": true }, { "answer_id": "JCW-SYS-005", "score": 0.5134639739990234, "sibling_score": 0.5134639739990234, "answer_score": null, "sibling_qid": "MUM-2026-02-1256-Q002", "sibling_text": "type of valve in jcw system", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "What valve is used in the ME jacket cooling-water system - why butterfly and not gate, and where they are positioned", "cross_family": false }, { "answer_id": "SAV-003", "score": 0.487421452999115, "sibling_score": 0.487421452999115, "answer_score": null, "sibling_qid": "KOL-2016-08-2068-Q019", "sibling_text": "river passage starting air valve leaking action as 2e", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Action when a unit starting air valve leaks or the line goes red hot in manoeuvring", "cross_family": true } ] }, { "qid": "KOL-2023-12-1766-Q006", "text": "crankshaft heat treatment. External:", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft Material", "tid": "KOL-2023-12-1766", "tray": "review", "candidates": [ { "answer_id": "HT-A-001", "score": 0.7622004151344299, "sibling_score": 0.7622004151344299, "answer_score": null, "sibling_qid": "MUM-2026-05-3130-Q003", "sibling_text": "heat treatment performed on crankshaft", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Heat treatment: what it is, the main methods, and why it is done", "cross_family": true }, { "answer_id": "HEAT-TRT-C-001", "score": 0.6823967695236206, "sibling_score": 0.6823967695236206, "answer_score": null, "sibling_qid": "KOL-2019-10-1486-Q003", "sibling_text": "crank shaft treatment before and after what temperature what will happen if we treat at 200 400 600 and infinite question both case case hardened and nitriding", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Nitriding — process, gas and where it is used on board", "cross_family": true }, { "answer_id": "HT-TCS-B-001", "score": 0.6363632678985596, "sibling_score": 0.6363632678985596, "answer_score": null, "sibling_qid": "KOL-2020-11-3366-Q004", "sibling_text": "tempering too much cross question whether all crankshaft is tempered or some part of crankshaft tempered", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Tempering — purpose, classes and where it is used on board", "cross_family": true } ] }, { "qid": "KOL-2023-12-1766-Q008", "text": "boiler operating at 10 bars, class says to operate it till 5 bars due to some problem, what settings to change.", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2023-12-1766", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-001", "score": 0.6943449378013611, "sibling_score": 0.6943449378013611, "answer_score": null, "sibling_qid": "MUM-2026-05-3281-Q004", "sibling_text": "setting of boiler safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-002", "score": 0.6510095000267029, "sibling_score": 0.6510095000267029, "answer_score": null, "sibling_qid": "KOL-2018-09-1419-Q004", "sibling_text": "boiler accumulation pressure test what to do if pressure exceeds 10 percent", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Acceptance limits and durations — the accumulation limit, the maximum test periods, and the action if the limit is exceeded", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.6486335396766663, "sibling_score": 0.6486335396766663, "answer_score": null, "sibling_qid": "MUM-2026-05-3274-Q007", "sibling_text": "boiler type make and rating and setting of safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOL-2023-12-1766-Q009", "text": "refrigeration system evaporator tube icing, reasons", "family": "Refrigeration & AC", "subtopic": "Refrigeration Faults / Checks", "tid": "KOL-2023-12-1766", "tray": "review", "candidates": [ { "answer_id": "TEV-TXV-005", "score": 0.7614341378211975, "sibling_score": 0.7614341378211975, "answer_score": null, "sibling_qid": "KOL-2017-05-3052-Q004", "sibling_text": "tev icing on outer surface reasons whats the level of the refrigerant in receiver while running", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Throttling process and superheat control across the TEV", "cross_family": false }, { "answer_id": "CCSC-314-001", "score": 0.6998414993286133, "sibling_score": 0.6998414993286133, "answer_score": null, "sibling_qid": "MUM-2026-03-2930-Q006", "sibling_text": "short circuting of refrigerant", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Refrigeration compressor short cycling — meaning, causes and corrective action", "cross_family": false }, { "answer_id": "REEF-COMP-008", "score": 0.6911860108375549, "sibling_score": 0.6911860108375549, "answer_score": null, "sibling_qid": "MUM-2026-03-2647-Q005", "sibling_text": "in refer you see icing in suction side reason which room is having problem", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Valves, clearances, oil carry-over, refrigerant-in-oil, frosting, tandem valves, cooling — fault checks", "cross_family": false } ] }, { "qid": "KOL-2023-12-1767-Q006", "text": "not remember. All answer given but not satisfied. Surveyor asked about Motor written result,as motor written not cleared so result is fail.", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOL-2023-12-1767", "tray": "new", "candidates": [ { "answer_id": "IR-TEST-D-008", "score": 0.6091810464859009, "sibling_score": 0.6091810464859009, "answer_score": null, "sibling_qid": "KOL-2023-02-2638-Q008", "sibling_text": "what will you do if ir test result of a motor is not satisfactory", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Low or unsatisfactory IR — how you investigate and what you do", "cross_family": true }, { "answer_id": "HYD-602-001", "score": 0.598656177520752, "sibling_score": 0.598656177520752, "answer_score": null, "sibling_qid": "MUM-2026-03-2930-Q011", "sibling_text": "at last he asked hydraulic test of boiler bhai mep mila motor fail due to kyuki written nai diya motor kabi", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Explain the boiler hydraulic / hydrostatic pressure test in detail — the full procedure", "cross_family": true }, { "answer_id": "SBD-001", "score": 0.5894595980644226, "sibling_score": 0.5894595980644226, "answer_score": null, "sibling_qid": "KOL-2018-10-3192-Q004", "sibling_text": "oil in gauge glass what you will do got function 4 motor again called for liner question told me tell me the first indication not satisfied with all 5 6 repeat", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "You find oil in the boiler gauge glass — causes, how you identify the source, and your actions as 2/E (including if manoeuvring). What is carryover?", "cross_family": true } ] }, { "qid": "KOL-2023-12-1939-Q008", "text": "Syphon tube in boiler, where used & its purpose? (couldn't ans this)", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2023-12-1939", "tray": "review", "candidates": [ { "answer_id": "ACCT-583-A-001", "score": 0.6646778583526611, "sibling_score": 0.6646778583526611, "answer_score": null, "sibling_qid": "MUM-2023-11-1065-Q004", "sibling_text": "accumulation of the boiler", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Explain the boiler accumulation pressure test — what it is, its purpose, and how it is carried out (including when and at what interval)", "cross_family": false }, { "answer_id": "BLR-TUBE-P01-001", "score": 0.6587320566177368, "sibling_score": 0.6587320566177368, "answer_score": null, "sibling_qid": "CHE-2026-05-0541-Q005S3", "sibling_text": "boiler parts inside asking about tubes and purpose of each", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "01. Attaching, fitting and supporting boiler tubes", "cross_family": false }, { "answer_id": "BLR-TUBE-P01-002", "score": 0.652592658996582, "sibling_score": 0.652592658996582, "answer_score": 0.4860276132822037, "sibling_qid": "CHE-2026-05-0614-Q005", "sibling_text": "stay tubes in boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "03. Types, functions and arrangement of boiler tubes", "cross_family": true } ] }, { "qid": "KOL-2023-12-2684-Q002", "text": "Explain about all the explosion protection devices Ex(d) Ex(p) Ex(s) Ex(q) . . Explain risk criterion in Zone 0 , Zone 1 , Zone 2.", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOL-2023-12-2684", "tray": "review", "candidates": [ { "answer_id": "EXD-EXI-A-002", "score": 0.6568202376365662, "sibling_score": 0.6568202376365662, "answer_score": null, "sibling_qid": "KOC-2025-01-0521-Q009", "sibling_text": "explosion proof notations exd exe", "sibling_family": "", "via": "sibling", "answer_title": "Ex d (flameproof / explosion-proof) — construction, shipboard applications and maintenance", "cross_family": false }, { "answer_id": "SAE-388-001", "score": 0.5827383995056152, "sibling_score": 0.5827383995056152, "answer_score": null, "sibling_qid": "CHE-2026-02-0483-Q010", "sibling_text": "starting air explosion protection", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "What safeties are fitted on the main engine starting air line?", "cross_family": false }, { "answer_id": "EXD-EXI-A-001", "score": 0.5755383968353271, "sibling_score": 0.5755383968353271, "answer_score": 0.5268962949514389, "sibling_qid": "MUM-2023-04-1382-Q001", "sibling_text": "what s is explosion proof and intrinsically safe difference", "sibling_family": "", "via": "sibling", "answer_title": "Ex i (intrinsically safe) vs Ex d (flameproof / explosion-proof) — the difference", "cross_family": false } ] }, { "qid": "KOL-2023-12-2690-Q003", "text": "Brushless excitation with AVR", "family": "Electrical - Generator & Alternator", "subtopic": "Brushless Alternator", "tid": "KOL-2023-12-2690", "tray": "review", "candidates": [ { "answer_id": "BRUSHALT-A-001", "score": 0.6557358503341675, "sibling_score": 0.6557358503341675, "answer_score": 0.5037421613931655, "sibling_qid": "CHE-2026-05-0553-Q003", "sibling_text": "brushless exciter", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01 · Working principle of the brushless alternator / brushless excitation systemHigh", "cross_family": false }, { "answer_id": "AVR-EXC-G-002", "score": 0.5658290058374404, "sibling_score": null, "answer_score": 0.5658290058374404, "sibling_qid": "", "sibling_text": "brushless excitation how dc reaches the rotor avr senses terminal voltage and sets the dc to the stationary exciter field the exciter is inverted field stationary armature rotating on the shaft", "sibling_family": "", "via": "answer_title", "answer_title": "Brushless excitation: how DC reaches the rotor", "cross_family": false }, { "answer_id": "ALT-GEN-P03-003", "score": 0.48620483577251433, "sibling_score": null, "answer_score": 0.48620483577251433, "sibling_qid": "", "sibling_text": "brushless alternator advantages and brushed vs brushless comparison brushed dc excitation reaches rotor through brushes and slip rings brushless avr feeds exciter field exciter output is rectified by rotating diodes to feed main rotor", "sibling_family": "", "via": "answer_title", "answer_title": "Brushless alternator advantages and brushed vs brushless comparison", "cross_family": false } ] }, { "qid": "KOL-2023-12-3664-Q004", "text": "Crack in rudder, what will you do, how to do welding, how to do pr testing, and how will you do inside coating.", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2023-12-3664", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.6747585535049438, "sibling_score": 0.6747585535049438, "answer_score": null, "sibling_qid": "KOL-2026-05-4096-Q002", "sibling_text": "rudder construction welding painting pressure test", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "HULL-DD-001", "score": 0.6366486549377441, "sibling_score": 0.6366486549377441, "answer_score": 0.5109936416149139, "sibling_qid": "KOL-2020-11-3360-Q004", "sibling_text": "hull crack repair i told the procedure followed by welding then he asked if crack occurs in the welding again then how will you repair", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "1. Hull plate / shell-weld crack repair in drydock", "cross_family": true }, { "answer_id": "WBS-C-005", "score": 0.6260774731636047, "sibling_score": 0.6260774731636047, "answer_score": 0.47641727030277253, "sibling_qid": "MUM-2026-01-1238-Q007", "sibling_text": "if crack on deck and need to do welding which welding to do process what are the checks to do welding how to ensure welding is satisfactory", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Crack and leak repair — deck plate, steam line, air receiver and other shipboard cracks", "cross_family": true } ] }, { "qid": "KOL-2023-12-3664-Q006", "text": "Safety vv checks. Internal-", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2023-12-3664", "tray": "new", "candidates": [ { "answer_id": "BLR-SURV-P01-001", "score": 0.5701375603675842, "sibling_score": 0.5701375603675842, "answer_score": null, "sibling_qid": "MUM-2026-03-2589-Q003", "sibling_text": "checks on safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "ACRV-005", "score": 0.556243360042572, "sibling_score": 0.556243360042572, "answer_score": null, "sibling_qid": "MUM-2023-03-1042-Q003", "sibling_text": "safety relief v v difference", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": false }, { "answer_id": "HV-SYS-P05-001", "score": 0.5430024862289429, "sibling_score": 0.5430024862289429, "answer_score": null, "sibling_qid": "KOL-2021-02-2423-Q003", "sibling_text": "hv additional safeties", "sibling_family": "", "via": "sibling", "answer_title": "HV switchboard (MSB): safeties, interlocks and protective features", "cross_family": false } ] }, { "qid": "KOL-2024-01-0805-Q003", "text": "Continental shelf", "family": "Other Conventions", "subtopic": "UNCLOS", "tid": "KOL-2024-01-0805", "tray": "review", "candidates": [ { "answer_id": "UNCLOS-004", "score": 0.850013792514801, "sibling_score": 0.850013792514801, "answer_score": 0.5654336750507355, "sibling_qid": "KOL-2026-03-1198-Q008", "sibling_text": "continental shelf", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is the continental shelf under UNCLOS and what is its range?", "cross_family": false }, { "answer_id": "UNCLOS-003", "score": 0.6512885093688965, "sibling_score": 0.6512885093688965, "answer_score": 0.43037929534912106, "sibling_qid": "KOL-2025-09-1054-Q007", "sibling_text": "territorial waters", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What are the maritime zones under UNCLOS — territorial waters, the contiguous zone and the international maritime boundary?", "cross_family": false }, { "answer_id": "UNCLOS-005", "score": 0.6393449306488037, "sibling_score": 0.6393449306488037, "answer_score": 0.470591676235199, "sibling_qid": "KOC-2024-07-0359-Q001", "sibling_text": "coastal state requirements as per unclos", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is a coastal state under UNCLOS, and how does it differ from the flag state and the port state?", "cross_family": false } ] }, { "qid": "KOL-2024-01-0806-Q001", "text": "Safety", "family": "", "subtopic": "High Voltage System", "tid": "KOL-2024-01-0806", "tray": "review", "candidates": [ { "answer_id": "REEF-SAFE-001", "score": 0.6993330717086792, "sibling_score": 0.6993330717086792, "answer_score": null, "sibling_qid": "MUM-2026-03-1306-Q024", "sibling_text": "refer safeties", "sibling_family": "Safety Management & Emergency", "via": "sibling", "answer_title": "Refrigeration plant and reefer-room safeties — what protects the machinery, and what protects the man?", "cross_family": false }, { "answer_id": "IGAT-583-001", "score": 0.6697578430175781, "sibling_score": 0.6697578430175781, "answer_score": null, "sibling_qid": "KOL-2017-03-0078-Q002", "sibling_text": "i g safeties", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "State all the alarms, trips and safety cut-outs provided on a tanker inert gas (IG) system.", "cross_family": false }, { "answer_id": "MSB-ESB-D-001", "score": 0.6655446290969849, "sibling_score": 0.6655446290969849, "answer_score": null, "sibling_qid": "KOC-2023-01-1226-Q003", "sibling_text": "safties in it", "sibling_family": "", "via": "sibling", "answer_title": "Main & emergency switchboards: function, construction & ship power distribution", "cross_family": false } ] }, { "qid": "KOL-2024-01-0806-Q003", "text": "What is Condition of class", "family": "Surveys - Statutory", "subtopic": "Condition of Class", "tid": "KOL-2024-01-0806", "tray": "review", "candidates": [ { "answer_id": "COC-001", "score": 0.8084679245948792, "sibling_score": 0.8084679245948792, "answer_score": 0.40641256272792814, "sibling_qid": "KOC-2026-04-0899-Q005", "sibling_text": "condition of class", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is a Condition of Class? Give examples, say where it is found, how much time is given to rectify it, and what happens if it is not met in time.", "cross_family": false }, { "answer_id": "COC-002", "score": 0.7595523595809937, "sibling_score": 0.7595523595809937, "answer_score": 0.41906471848487853, "sibling_qid": "KOL-2016-12-0036-Q002", "sibling_text": "condition of class condition assessignment", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the difference between a Condition of Class and a Condition of Assignment?", "cross_family": false }, { "answer_id": "CSAS-SURV-001", "score": 0.39904460608959197, "sibling_score": null, "answer_score": 0.39904460608959197, "sibling_qid": "", "sibling_text": "certificate of class what it is who issues it what class looks after issuedby the classification society irs lr dnv abs not by flag or imo means built and maintained to the society s rules condition satisfactory at the last survey", "sibling_family": "", "via": "answer_title", "answer_title": "Certificate of class — what it is, who issues it, what class looks after", "cross_family": false } ] }, { "qid": "KOL-2024-01-0806-Q004", "text": "Difference between Audit n Survey", "family": "Surveys - Statutory", "subtopic": "Audit vs Survey", "tid": "KOL-2024-01-0806", "tray": "review", "candidates": [ { "answer_id": "AUDIT-IE-004", "score": 0.7561904788017273, "sibling_score": 0.7561904788017273, "answer_score": 0.5205410599708556, "sibling_qid": "KOC-2026-09-2211-Q001", "sibling_text": "audit and survey difference", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Difference between audit and survey", "cross_family": false }, { "answer_id": "ISM-AUD-P03-001", "score": 0.6553641557693481, "sibling_score": 0.6553641557693481, "answer_score": 0.42949120700359344, "sibling_qid": "KOC-2026-02-0822-Q011", "sibling_text": "difference between audit and survey he wants definition and differences", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Audit vs survey vs inspection; initial vs interim audit", "cross_family": true }, { "answer_id": "SURV-GEN-002", "score": 0.5724278092384338, "sibling_score": 0.5724278092384338, "answer_score": 0.4386945158243179, "sibling_qid": "KOL-2023-11-3655-Q006", "sibling_text": "differences between statutory survey and class survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Statutory survey versus classification survey", "cross_family": false } ] }, { "qid": "KOL-2024-01-0806-Q005", "text": "Difference between kenter shackle and D shackle", "family": "Auxiliary Equipment", "subtopic": "Shackle / Wire Rope", "tid": "KOL-2024-01-0806", "tray": "new", "candidates": [ { "answer_id": "ANCH-CHN-A-002", "score": 0.571040689945221, "sibling_score": 0.571040689945221, "answer_score": 0.30928491055965424, "sibling_qid": "MUM-2023-07-0112-Q007", "sibling_text": "kenter shackle", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Chain construction: material, stud links & joining shackles", "cross_family": false }, { "answer_id": "ANCH-CHN-A-004", "score": 0.5244122743606567, "sibling_score": 0.5244122743606567, "answer_score": 0.38395328521728517, "sibling_qid": "KOC-2024-01-1828-Q005", "sibling_text": "how chain connected to anchor swivel block each cable connected by d shackle", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Cable arrangement: anchor to bitter end, and the bitter-end release", "cross_family": false }, { "answer_id": "ANCH-CHN-A-003", "score": 0.48954397439956665, "sibling_score": 0.48954397439956665, "answer_score": null, "sibling_qid": "MUM-2026-05-3187-Q003S3", "sibling_text": "what is one shackle", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Equipment Number & how cable length is decided", "cross_family": false } ] }, { "qid": "KOL-2024-01-1770-Q002", "text": "Why cast iron not used for bed plate. On internet I read somewhere due to low rigidity more vibration, his reply no your answer is absolutely wrong", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Bedplate / A-Frame", "tid": "KOL-2024-01-1770", "tray": "new", "candidates": [ { "answer_id": "MATPROP-A-003", "score": 0.5972537398338318, "sibling_score": 0.5972537398338318, "answer_score": null, "sibling_qid": "KOL-2021-10-1633-Q002", "sibling_text": "cast iron advantage", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Cast iron: grey, white, nodular; versus cast steel", "cross_family": true }, { "answer_id": "FWFB-P02-007", "score": 0.5534336566925049, "sibling_score": 0.5534336566925049, "answer_score": null, "sibling_qid": "MUM-2026-03-2952-Q007", "sibling_text": "what type of bedplate", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Transverse and longitudinal girders: arrangement and purpose", "cross_family": false }, { "answer_id": "BED-CHOCK-006", "score": 0.5370297431945801, "sibling_score": 0.5370297431945801, "answer_score": null, "sibling_qid": "MUM-2025-11-2876-Q008", "sibling_text": "which we are using and why epoxy because it makes 100 contact and told all advantages of epoxy over cast iron finally coc", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What types of main-engine chocks are there — epoxy/resin, cast-iron, rubber — and why each?", "cross_family": false } ] }, { "qid": "KOL-2024-01-1941-Q002", "text": "Frequency formula.", "family": "Electrical - Generator & Alternator", "subtopic": "Frequency", "tid": "KOL-2024-01-1941", "tray": "review", "candidates": [ { "answer_id": "ALT-GEN-P04-007", "score": 0.6885761618614197, "sibling_score": 0.6885761618614197, "answer_score": 0.4102707996964455, "sibling_qid": "KOC-2026-03-1727-Q004", "sibling_text": "frequency", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Frequency, poles, speed and 50/60 Hz relation", "cross_family": false }, { "answer_id": "TC-A-009", "score": 0.6074509620666504, "sibling_score": 0.6074509620666504, "answer_score": null, "sibling_qid": "KOC-2024-05-1360-Q008", "sibling_text": "resonant frequency formula", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "The LC circuit, resonance and the oscillator", "cross_family": true }, { "answer_id": "RISK-RA-D-001", "score": 0.5727328062057495, "sibling_score": 0.5727328062057495, "answer_score": null, "sibling_qid": "KOL-2021-03-3388-Q002", "sibling_text": "what is frequency in engineering terms", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "", "cross_family": true } ] }, { "qid": "KOL-2024-01-1942-Q005", "text": "Difference between improved high lift and high lift safety valve.", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2024-01-1942", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.7846440672874451, "sibling_score": 0.7846440672874451, "answer_score": null, "sibling_qid": "MUM-2026-06-3418-Q008", "sibling_text": "constructional diff between high lift and improved high lift safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACRV-005", "score": 0.6945838332176208, "sibling_score": 0.6945838332176208, "answer_score": 0.4425992876291275, "sibling_qid": "MUM-2026-06-3429-Q010", "sibling_text": "safety valve lift difference", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-003", "score": 0.42939722537994385, "sibling_score": null, "answer_score": 0.42939722537994385, "sibling_qid": "", "sibling_text": "the accumulation test and the safety valve required lift how lift and capacity are verified and why accumulation must stay inside the limit popping test proves setting accumulation test proves installed relieving capacity not two versions of one test sizing the class discharge formula sizes the aggregate valve area from the maker s specified peak evaporation using a constant for the valve type", "sibling_family": "", "via": "answer_title", "answer_title": "The accumulation test and the safety valve — required lift, how lift and capacity are verified, and why accumulation must stay inside the limit", "cross_family": false } ] }, { "qid": "KOL-2024-01-4032-Q002", "text": "Electrical Relay", "family": "Electrical - Protection & Relays", "subtopic": "Protection / Relays", "tid": "KOL-2024-01-4032", "tray": "review", "candidates": [ { "answer_id": "PRL-594-002", "score": 0.822512149810791, "sibling_score": 0.822512149810791, "answer_score": 0.5831705659627914, "sibling_qid": "KOL-2025-09-2864-Q007", "sibling_text": "electrical relay", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "What is a relay, what is it for, and what are its types?", "cross_family": false }, { "answer_id": "PRL-594-001", "score": 0.7765558958053589, "sibling_score": 0.7765558958053589, "answer_score": 0.5325417786836624, "sibling_qid": "KOC-2023-10-1284-Q001", "sibling_text": "relay vs contactor", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "What is the difference between a relay and a contactor?", "cross_family": false }, { "answer_id": "RPT-B-001", "score": 0.7271077632904053, "sibling_score": 0.7271077632904053, "answer_score": null, "sibling_qid": "CHE-2026-02-0332-Q014S7", "sibling_text": "reverse power relay working", "sibling_family": "Electrical - 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don't know", "family": "Electrical - Distribution & MSB", "subtopic": "High Voltage System / Earthing / Shore Supply", "tid": "KOL-2024-02-4039", "tray": "review", "candidates": [ { "answer_id": "ELEC-SAFE-004", "score": 0.857145369052887, "sibling_score": 0.857145369052887, "answer_score": 0.5630576372146606, "sibling_qid": "KOL-2025-06-1981-Q003", "sibling_text": "material of gloves used in hv category 2 hdpe category 3 material don t know", "sibling_family": "", "via": "sibling", "answer_title": "HV PPE: rubber gloves and boots — material, class and rating source", "cross_family": false }, { "answer_id": "HV-SYS-P05-002", "score": 0.604055643081665, "sibling_score": 0.604055643081665, "answer_score": null, "sibling_qid": "KOC-2025-11-1614-Q010", "sibling_text": "if you ordered gloves for hv system how you can confirm that it is designated to use in hv system", "sibling_family": "", "via": "sibling", "answer_title": "Working on the HV system: precautions, isolation and earthing before maintenance", "cross_family": false }, { "answer_id": "TNK-SAFE-BF26-008", "score": 0.5285143852233887, "sibling_score": 0.5285143852233887, "answer_score": 0.45923418700695035, "sibling_qid": "KOL-2025-12-1145-Q003", "sibling_text": "protective suit for gas clothing material used in gas clothing", "sibling_family": "Cargo Ops - 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Give the definition and name some.", "cross_family": true } ] }, { "qid": "KOL-2024-03-0821-Q003", "text": "3-How strnghtening the engine room bottom area", "family": "SOLAS", "subtopic": "Double Bottom / Torsion Box", "tid": "KOL-2024-03-0821", "tray": "review", "candidates": [ { "answer_id": "FLR-WFB-P01-004", "score": 0.6913855671882629, "sibling_score": 0.6913855671882629, "answer_score": 0.4975716471672058, "sibling_qid": "KOL-2025-09-1062-Q009", "sibling_text": "how strnghtening the engine room bottom area", "sibling_family": "", "via": "sibling", "answer_title": "Floors and the double bottom in machinery spaces / engine-room bottom", "cross_family": false }, { "answer_id": "DBTB-A-002", "score": 0.4996579885482788, "sibling_score": 0.4996579885482788, "answer_score": null, "sibling_qid": "KOL-2024-08-0853-Q006", "sibling_text": "double bottlom construction below main engine", "sibling_family": "", "via": "sibling", "answer_title": "Double-bottom tanks: purpose, advantages, disadvantages and stability effect", "cross_family": false }, { "answer_id": "CO2-SYS-005", "score": 0.4993673264980316, "sibling_score": 0.4993673264980316, "answer_score": null, "sibling_qid": "KOC-2025-07-0633-Q038", "sibling_text": "fixed sys for engine room", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 system safeties, CO2-room requirements, alarms and ventilation", "cross_family": true } ] }, { "qid": "KOL-2024-03-0822-Q004", "text": "External stakeholder", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOL-2024-03-0822", "tray": "new", "candidates": [ { "answer_id": "ISM-AUDIT-P01-002", "score": 0.5174122452735901, "sibling_score": 0.5174122452735901, "answer_score": null, "sibling_qid": "KOC-2024-03-0325-Q003", "sibling_text": "external audit ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM/SMS audits and verifications — types, who conducts them, intervals and validity", "cross_family": false }, { "answer_id": "ISMNC-002", "score": 0.4965263605117798, "sibling_score": 0.4965263605117798, "answer_score": null, "sibling_qid": "MUM-2023-08-0118-Q007", "sibling_text": "what is mnc questions only asked by external name don t know", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a major non-conformity under the ISM Code? Give the definition and name some.", "cross_family": false }, { "answer_id": "TEV-TXV-003", "score": 0.48790445923805237, "sibling_score": 0.48790445923805237, "answer_score": null, "sibling_qid": "KOL-2021-10-1636-Q002", "sibling_text": "external connection of tev", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Equalizing line — internal vs external equalized TEV", "cross_family": true } ] }, { "qid": "KOL-2024-03-0823-Q005", "text": "Continental shelf", "family": "Other Conventions", "subtopic": "UNCLOS", "tid": "KOL-2024-03-0823", "tray": "review", "candidates": [ { "answer_id": "UNCLOS-004", "score": 0.850013792514801, "sibling_score": 0.850013792514801, "answer_score": 0.5654336750507355, "sibling_qid": "KOL-2026-03-1198-Q008", "sibling_text": "continental shelf", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is the continental shelf under UNCLOS and what is its range?", "cross_family": false }, { "answer_id": "UNCLOS-003", "score": 0.6512884497642517, "sibling_score": 0.6512884497642517, "answer_score": 0.43037929534912106, "sibling_qid": "KOL-2025-09-1054-Q007", "sibling_text": "territorial waters", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What are the maritime zones under UNCLOS — territorial waters, the contiguous zone and the international maritime boundary?", "cross_family": false }, { "answer_id": "UNCLOS-005", "score": 0.6393449306488037, "sibling_score": 0.6393449306488037, "answer_score": 0.470591676235199, "sibling_qid": "KOC-2024-07-0359-Q001", "sibling_text": "coastal state requirements as per unclos", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is a coastal state under UNCLOS, and how does it differ from the flag state and the port state?", "cross_family": false } ] }, { "qid": "KOL-2024-03-0823-Q008", "text": "Internal stake holders", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOL-2024-03-0823", "tray": "new", "candidates": [ { "answer_id": "IMO-CODES-P03-002", "score": 0.4841375946998596, "sibling_score": 0.4841375946998596, "answer_score": 0.26832047402858733, "sibling_qid": "KOC-2025-12-0756-Q009", "sibling_text": "imo sub comitee internal no question", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": true }, { "answer_id": "ISM-AUDIT-P01-002", "score": 0.4490830898284912, "sibling_score": 0.4490830898284912, "answer_score": null, "sibling_qid": "MUM-2026-06-3581-Q006", "sibling_text": "who does internal audit", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM/SMS audits and verifications — types, who conducts them, intervals and validity", "cross_family": false }, { "answer_id": "ISM-AUD-P02-002", "score": 0.4469422698020935, "sibling_score": 0.4469422698020935, "answer_score": null, "sibling_qid": "KOC-2026-01-2087-Q013", "sibling_text": "what is the purpose of ism internal", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM Code — what it is, purpose, objectives and structure", "cross_family": false } ] }, { "qid": "KOL-2024-03-0824-Q001", "text": "coffin plate, oxter plate, shoe plate, camber, Brest hook, tumble home", "family": "SOLAS", "subtopic": "Deck Camber / Sheer", "tid": "KOL-2024-03-0824", "tray": "review", "candidates": [ { "answer_id": "SHELL-PLT-B-004", "score": 0.6746503114700317, "sibling_score": 0.6746503114700317, "answer_score": 0.5488194972276688, "sibling_qid": "MUM-2025-11-0583-Q007", "sibling_text": "shoe plate coffin plate", "sibling_family": "", "via": "sibling", "answer_title": "Special shell plates — oxter, coffin, shoe, fish, shedder", "cross_family": false }, { "answer_id": "SHELL-PLT-B-002", "score": 0.6410156488418579, "sibling_score": 0.6410156488418579, "answer_score": 0.40568462312221526, "sibling_qid": "KOL-2024-08-0854-Q003", "sibling_text": "stealer plate coffin plate gusset plate", "sibling_family": "", "via": "sibling", "answer_title": "Stealer plate and strake nesting", "cross_family": false }, { "answer_id": "FWFB-P02-001", "score": 0.6135780215263367, "sibling_score": 0.6135780215263367, "answer_score": 0.4016941785812378, "sibling_qid": "MUM-2026-02-0753-Q003", "sibling_text": "guset plate coffin plate margin plate", "sibling_family": "", "via": "sibling", "answer_title": "Brackets, knees and gusset plates", "cross_family": false } ] }, { "qid": "KOL-2024-03-0825-Q001", "text": "Type of ships", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2024-03-0825", "tray": "review", "candidates": [ { "answer_id": "LLST-AB-001", "score": 0.8290340900421143, "sibling_score": 0.8290340900421143, "answer_score": 0.5269852101802825, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.794699490070343, "sibling_score": 0.794699490070343, "answer_score": 0.5293218314647674, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.7899810671806335, "sibling_score": 0.7899810671806335, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false } ] }, { "qid": "KOL-2024-03-1773-Q005", "text": "Static parts of main engine. How is bedplate and A frame connected?? ( Couldn't answer, its not tie rod).", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Bedplate / A-Frame", "tid": "KOL-2024-03-1773", "tray": "review", "candidates": [ { "answer_id": "TR-TB-PA-001", "score": 0.7581688761711121, "sibling_score": 0.7581688761711121, "answer_score": 0.5759778559207916, "sibling_qid": "KOL-2024-04-3686-Q003", "sibling_text": "how firing forces transmitted tie rods arrangement how fitted how crankshaft rests on bedplate how bed plate girders fitted", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Function of tie rods and the firing-load path", "cross_family": false }, { "answer_id": "CHK-RM-001", "score": 0.6747934818267822, "sibling_score": 0.6747934818267822, "answer_score": null, "sibling_qid": "KOL-2018-10-1428-Q003", "sibling_text": "how bedplate is connected to hull", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What are chocks? Function, types, where fitted and how placed — which have the biggest area, and how does the bedplate connect to the hull?", "cross_family": false }, { "answer_id": "TIE-ROD-C-001", "score": 0.6665953993797302, "sibling_score": 0.6665953993797302, "answer_score": null, "sibling_qid": "KOC-2021-08-2024-Q003", "sibling_text": "tie rod bolt function he accepted only it is keeping all parts in compression the a frame and entablature will fail due to weak material if keeping it in tension", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Detecting a broken or slack tie rod — signs, and effects of running on", "cross_family": false } ] }, { "qid": "KOL-2024-03-1774-Q003", "text": "Balanced rudder( he wanted to listen in % how much rudder portion ahead of stock) significance of balanced rudder, disadvantages of balanced rudder, why semi balanced more popular", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2024-03-1774", "tray": "review", "candidates": [ { "answer_id": "TRS-001", "score": 0.6755269765853882, "sibling_score": 0.6755269765853882, "answer_score": null, "sibling_qid": "KOL-2019-05-3236-Q005", "sibling_text": "rudder stock twisted how will you balance it how to find changed mishsip position", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "The rudder stock is twisted — how do you proceed, recover the true midship datum, and what regulations let you proceed to the next port?", "cross_family": false }, { "answer_id": "STEER-055-A-004", "score": 0.6474873423576355, "sibling_score": 0.6474873423576355, "answer_score": null, "sibling_qid": "KOL-2019-02-3212-Q005", "sibling_text": "rudder is taking more to come from one side to the other reasons and maintenance", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Hydraulic faults — air, sluggish response, locking, leakage", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.6378863453865051, "sibling_score": 0.6378863453865051, "answer_score": null, "sibling_qid": "CHE-2026-08-0667-Q004", "sibling_text": "how is weight of the rudder carried", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false } ] }, { "qid": "KOL-2024-03-1775-Q003", "text": "Ref oil charging procedure", "family": "Refrigeration & AC", "subtopic": "Refrigeration Lubricating Oil / Flock Point / Oil Charging", "tid": "KOL-2024-03-1775", "tray": "review", "candidates": [ { "answer_id": "REEF-COMP-004", "score": 0.7712542414665222, "sibling_score": 0.7712542414665222, "answer_score": 0.559234231710434, "sibling_qid": "MUM-2026-01-1242-Q011", "sibling_text": "refer oil charging method", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Charging, replenishing and draining compressor lube oil — including with no charging pump", "cross_family": false }, { "answer_id": "REEF-CHG-001", "score": 0.6937499642372131, "sibling_score": 0.6937499642372131, "answer_score": null, "sibling_qid": "KOC-2022-01-1773-Q009", "sibling_text": "ref charging procedure", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "01Charging or replenishing the refrigerant in a refrigeration / AC plant", "cross_family": false }, { "answer_id": "REEF-CHG-002", "score": 0.6547437310218811, "sibling_score": 0.6547437310218811, "answer_score": null, "sibling_qid": "MUM-2026-05-3078-Q010", "sibling_text": "full procedure for gas and liquid charging", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "02Where and how gas and liquid refrigerant are charged into the system", "cross_family": false } ] }, { "qid": "KOL-2024-03-1945-Q001", "text": "Type of ship. Type of engine.", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "KOL-2024-03-1945", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8393903374671936, "sibling_score": 0.8393903374671936, "answer_score": null, "sibling_qid": "MUM-2025-08-2357-Q001", "sibling_text": "type of ship type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.8140711784362793, "sibling_score": 0.8140711784362793, "answer_score": null, "sibling_qid": "MUM-2026-07-3668-Q004", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "AC-VE-001", "score": 0.7727745175361633, "sibling_score": 0.7727745175361633, "answer_score": null, "sibling_qid": "MUM-2026-01-2904-Q001", "sibling_text": "what type of ship engine power and nomenclature", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Volumetric efficiency: define it, and if it drops how do you improve it (with bumping clearance)?", "cross_family": false } ] }, { "qid": "KOL-2024-03-2700-Q006", "text": "What are the maintenance done on a contactor?", "family": "Electrical - Protection & Relays", "subtopic": "Protection / Relays", "tid": "KOL-2024-03-2700", "tray": "new", "candidates": [ { "answer_id": "CB033-C-001", "score": 0.6226608753204346, "sibling_score": 0.6226608753204346, "answer_score": 0.4403158128261566, "sibling_qid": "CHE-2026-05-0633-Q011", "sibling_text": "maintenance on circuit breaker", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "How do you carry out maintenance and testing on an ACB / main circuit breaker?", "cross_family": false }, { "answer_id": "PRL-594-001", "score": 0.5722034573554993, "sibling_score": 0.5722034573554993, "answer_score": null, "sibling_qid": "CHE-2026-05-0611-Q006", "sibling_text": "contactor power supply", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "What is the difference between a relay and a contactor?", "cross_family": false }, { "answer_id": "CB033-C-002", "score": 0.5647733807563782, "sibling_score": 0.5647733807563782, "answer_score": null, "sibling_qid": "KOL-2019-03-2269-Q004", "sibling_text": "maintenance on vaccum circuit breaker", "sibling_family": "", "via": "sibling", "answer_title": "How do you maintain and test a VCB / SF6 breaker, and confirm the vacuum or gas integrity?", "cross_family": false } ] }, { "qid": "KOL-2024-03-2704-Q004", "text": "How bus bar is insulated? Spoke about Class F insulation but wanted to know materials used. Not satisfied", "family": "SOLAS", "subtopic": "MSB / ESB / Switchboard", "tid": "KOL-2024-03-2704", "tray": "review", "candidates": [ { "answer_id": "MSB-ESB-A-001", "score": 0.704403817653656, "sibling_score": 0.704403817653656, "answer_score": null, "sibling_qid": "MUM-2026-04-2953-Q003", "sibling_text": "bus bar insulation", "sibling_family": "", "via": "sibling", "answer_title": "Busbars: construction, arrangement, connection, checks and rating", "cross_family": false }, { "answer_id": "INS-CLASS-004", "score": 0.6473633050918579, "sibling_score": 0.6473633050918579, "answer_score": 0.5187964975833893, "sibling_qid": "KOC-2022-12-1213-Q004", "sibling_text": "insulation class where class f insulation is used", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Where is class F insulation used, and what are the applications of the various classes?", "cross_family": true }, { "answer_id": "CABLE-INSUL-D-001", "score": 0.5887011885643005, "sibling_score": 0.5887011885643005, "answer_score": 0.49333826899528505, "sibling_qid": "KOL-2018-03-2180-Q004", "sibling_text": "class of insulation cables", "sibling_family": "", "via": "sibling", "answer_title": "Insulation: materials, classes and required properties", "cross_family": false } ] }, { "qid": "KOL-2024-03-3676-Q004", "text": "Aux engine cyl head valves leak test ?", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Cover / Head", "tid": "KOL-2024-03-3676", "tray": "review", "candidates": [ { "answer_id": "CCH-590-002", "score": 0.7303127646446228, "sibling_score": 0.7303127646446228, "answer_score": 0.5232010185718536, "sibling_qid": "CHE-2025-08-0416-Q001", "sibling_text": "aux engine cylinder head pressure test", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "How do you pressure test a cylinder head, and how do you find and rectify a leak from it?", "cross_family": false }, { "answer_id": "AVS-436-003", "score": 0.6613664627075195, "sibling_score": 0.6613664627075195, "answer_score": null, "sibling_qid": "CHE-2026-08-0656-Q002", "sibling_text": "how to check the aux engine cylinder head valve and seat after lapping", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "03. After lapping or grinding — the acceptance criteria", "cross_family": true }, { "answer_id": "SAV-002", "score": 0.6541851758956909, "sibling_score": 0.6541851758956909, "answer_score": 0.5055069386959076, "sibling_qid": "CHE-2026-05-0581-Q011", "sibling_text": "how to test main engine air starting valve leak testing place", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Identifying and testing a leaking starting air valve", "cross_family": true } ] }, { "qid": "KOL-2024-03-3677-Q003", "text": "Generator crankpin has gone oval ,what u ll do and how to make it operational after repair . Tri metal bearing all layers name material and their purpose", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Crankshaft / Crankpin / Bearings", "tid": "KOL-2024-03-3677", "tray": "review", "candidates": [ { "answer_id": "AE-CSB-346-004", "score": 0.6591111421585083, "sibling_score": 0.6591111421585083, "answer_score": 0.5050437688827515, "sibling_qid": "MUM-2022-08-2138-Q005", "sibling_text": "ae crankpin ovality check and repair measures", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Crankpin ovality / damage — check and repair action", "cross_family": false }, { "answer_id": "CRPIN-CHK-P01-004", "score": 0.6580592393875122, "sibling_score": 0.6580592393875122, "answer_score": 0.5858678638935089, "sibling_qid": "KOL-2021-02-3378-Q002", "sibling_text": "crank pin ovalitity limit how to remove whole process and final remedy tell him about undersized bearing", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Repairing an oval or worn crankpin — grinding, undersize bearings, renewal", "cross_family": true }, { "answer_id": "WMAT-170-002", "score": 0.6332975029945374, "sibling_score": 0.6332975029945374, "answer_score": null, "sibling_qid": "KOL-2023-11-3651-Q004", "sibling_text": "trimetal bearing all layer", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bi-metal and tri-metal bearings: layers, materials, functions, advantages", "cross_family": true } ] }, { "qid": "KOL-2024-04-0826-Q003", "text": "Critical eqyipments", "family": "ISM Code", "subtopic": "SMS / Functional Requirements", "tid": "KOL-2024-04-0826", "tray": "review", "candidates": [ { "answer_id": "CREQ-542-002", "score": 0.7595290541648865, "sibling_score": 0.7595290541648865, "answer_score": 0.4574156045913696, "sibling_qid": "KOL-2025-09-1053-Q004", "sibling_text": "critical eqyipments", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Name examples of critical equipment or critical machinery onboard.", "cross_family": false }, { "answer_id": "CREQ-542-003", "score": 0.654220700263977, "sibling_score": 0.654220700263977, "answer_score": 0.4503270089626312, "sibling_qid": "KOL-2019-03-0264-Q006", "sibling_text": "what is criteria for choosing critical equipments", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What criteria are used for choosing or identifying critical equipment?", "cross_family": false }, { "answer_id": "CREQ-542-001", "score": 0.6163696646690369, "sibling_score": 0.6163696646690369, "answer_score": 0.4185837656259537, "sibling_qid": "MUM-2024-02-2755-Q001", "sibling_text": "critical equipment on board under what code", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Under which code is critical equipment addressed onboard?", "cross_family": false } ] }, { "qid": "KOL-2024-04-0828-Q005", "text": "Fin stabilizer why on large ship, why not passive tank .. disadvantage of fin stabilizer", "family": "", "subtopic": "Anti-Roll Tank / Stabiliser", "tid": "KOL-2024-04-0828", "tray": "new", "candidates": [ { "answer_id": "PAR-ROLL-003", "score": 0.5433846712112427, "sibling_score": 0.5433846712112427, "answer_score": 0.42834787368774413, "sibling_qid": "MUM-2025-11-2867-Q007", "sibling_text": "parametric rolling in detail reasons why not on other ships", "sibling_family": "", "via": "sibling", "answer_title": "03. Why container / car-carrier / Ro-Ro ships, and why not bulk carriers", "cross_family": false }, { "answer_id": "DUS-P5-03", "score": 0.5296273231506348, "sibling_score": 0.5296273231506348, "answer_score": null, "sibling_qid": "CHE-2026-05-0557-Q013", "sibling_text": "why transom stern is more preferred", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Stern frame construction, cross-section and rudder-axis sketch", "cross_family": false }, { "answer_id": "SHAFT-CPP-003", "score": 0.5227682590484619, "sibling_score": 0.5227682590484619, "answer_score": null, "sibling_qid": "KOC-2021-05-0940-Q006", "sibling_text": "manouvering of ship without varying the speed of main engine disadvantage", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "3. CPP — working, construction, oil channel, feedback & emergency", "cross_family": false } ] }, { "qid": "KOL-2024-04-0831-Q004", "text": "Fog horn", "family": "Auxiliary Equipment", "subtopic": "air horn", "tid": "KOL-2024-04-0831", "tray": "new", "candidates": [ { "answer_id": "HKC-IHM-A-001", "score": 0.5733323693275452, "sibling_score": 0.5733323693275452, "answer_score": null, "sibling_qid": "KOC-2024-12-0485-Q013", "sibling_text": "honking convention", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Hong Kong Convention — what it is and what it requires", "cross_family": true }, { "answer_id": "FIRE-P02-02", "score": 0.5233478546142578, "sibling_score": 0.5233478546142578, "answer_score": null, "sibling_qid": "CHE-2026-02-0117-Q006", "sibling_text": "hi fog operational check", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist — routine testing, alarms and 2/E maintenance", "cross_family": true }, { "answer_id": "VENT-HD-003", "score": 0.5037963390350342, "sibling_score": 0.5037963390350342, "answer_score": null, "sibling_qid": "KOC-2024-01-0282-Q006", "sibling_text": "f o tank air vent diagram", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Fuel-oil / diesel-oil / bunker tank vent arrangements — draw and explain", "cross_family": false } ] }, { "qid": "KOL-2024-04-2706-Q004", "text": "Diff between EXI a,b,c ? Few cross questions.", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOL-2024-04-2706", "tray": "new", "candidates": [ { "answer_id": "MEB-MEC-P03-001", "score": 0.561298131942749, "sibling_score": 0.561298131942749, "answer_score": 0.39364365190267564, "sibling_qid": "KOL-2022-10-1713-Q001", "sibling_text": "diff bw me b and me c", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "ME-B vs ME-C — the core difference", "cross_family": false }, { "answer_id": "EECS-002", "score": 0.5439525246620178, "sibling_score": 0.5439525246620178, "answer_score": 0.2820717334747314, "sibling_qid": "CHE-2026-02-0104-Q006", "sibling_text": "eexi cii difference", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "02. Differentiate EEXI and CII", "cross_family": false }, { "answer_id": "EECS-011", "score": 0.5256901979446411, "sibling_score": 0.5256901979446411, "answer_score": null, "sibling_qid": "MUM-2026-04-0930-Q001", "sibling_text": "eexi eeoi and cross qns", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "11. Explain EEXI and EEOI", "cross_family": false } ] }, { "qid": "KOL-2024-04-2706-Q006", "text": "Different types of hazardous zones in tanker ? Explain .", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOL-2024-04-2706", "tray": "review", "candidates": [ { "answer_id": "TNK-SAFE-BF26-003", "score": 0.7284512519836426, "sibling_score": 0.7284512519836426, "answer_score": 0.5806880831718445, "sibling_qid": "KOL-2026-01-1153-Q006", "sibling_text": "different type of zones in oil tanker in hazardous area example of equipments fitted in different zones", "sibling_family": "", "via": "sibling", "answer_title": "What safeties, including electrical safeties and Ex ratings, are provided on the deck of a tanker?", "cross_family": false }, { "answer_id": "TCM-374-005", "score": 0.6947938203811646, "sibling_score": 0.6947938203811646, "answer_score": null, "sibling_qid": "KOC-2026-02-0826-Q020", "sibling_text": "hazard zone in chemical tanker", "sibling_family": "Chemical Tankers", "via": "sibling", "answer_title": "Gas-freeing a tanker after discharge or before dry dock (why through the IG system)", "cross_family": false }, { "answer_id": "CHEM-PA-012", "score": 0.6096767783164978, "sibling_score": 0.6096767783164978, "answer_score": null, "sibling_qid": "KOL-2022-12-0709-Q002", "sibling_text": "type of ships done type of chemical tankers types of noxious liquid substances", "sibling_family": "MARPOL - Annex II (NLS)", "via": "sibling", "answer_title": "Differentiating chemical tankers and finding a ship’s allowable cargo", "cross_family": false } ] }, { "qid": "KOL-2024-04-2710-Q005", "text": "working of Magnetic pickup sensor ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Encoders", "tid": "KOL-2024-04-2710", "tray": "new", "candidates": [ { "answer_id": "PROX-SW-002", "score": 0.6224468946456909, "sibling_score": 0.6224468946456909, "answer_score": 0.6026775538921356, "sibling_qid": "KOL-2017-12-2163-Q001", "sibling_text": "how magnetic pick works", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Magnetic pickup sensor — how it works", "cross_family": true }, { "answer_id": "PIEZO-BF57-002", "score": 0.5529324412345886, "sibling_score": 0.5529324412345886, "answer_score": null, "sibling_qid": "KOL-2023-09-2677-Q009", "sibling_text": "7 working of piezoelectric sensor", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "The piezoelectric sensor — how it works and where it's used in the engine room", "cross_family": false }, { "answer_id": "GMC-583-B-001", "score": 0.5484787821769714, "sibling_score": 0.5484787821769714, "answer_score": null, "sibling_qid": "KOL-2025-08-2824-Q006", "sibling_text": "working of moving coil galvano meter principle it works cross ques how d pointer rotates", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Moving-coil galvanometer — construction, working, and conversion to ammeter or voltmeter", "cross_family": false } ] }, { "qid": "KOL-2024-04-3684-Q006", "text": "Cast iron welding ?", "family": "Workshop & Welding", "subtopic": "Cast Iron Welding", "tid": "KOL-2024-04-3684", "tray": "review", "candidates": [ { "answer_id": "WELD-B-001", "score": 0.8304968476295471, "sibling_score": 0.8304968476295471, "answer_score": 0.5481960773468018, "sibling_qid": "MUM-2026-05-3211-Q005", "sibling_text": "cast iron welding", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding & crack-repair of aluminium and cast iron, including metal stitching", "cross_family": false }, { "answer_id": "LH-ELEC-006", "score": 0.509703129529953, "sibling_score": null, "answer_score": 0.509703129529953, "sibling_qid": "", "sibling_text": "6 how would you approach a cast iron valve repair when the examiner probes welding and low hydrogen electrodes first response replace or fit a sound same size valve a welded cast iron repair is a stop gap not equal to new if welding cast iron not a plain mild steel low hydrogen rod the high carbon makes a hard brittle cracking weld", "sibling_family": "", "via": "answer_title", "answer_title": "6. How would you approach a cast-iron valve repair when the examiner probes welding and low-hydrogen electrodes?", "cross_family": false }, { "answer_id": "METAL-LOCK-001", "score": 0.493500292301178, "sibling_score": null, "answer_score": 0.493500292301178, "sibling_qid": "", "sibling_text": "what is metal locking stitching why use it materials benefits cold process zero heat applied at any stage for brittle cast iron and other castings where welding risks further cracking or a brittle heat affected zone", "sibling_family": "", "via": "answer_title", "answer_title": "What is metal locking / stitching, why use it, materials & benefits", "cross_family": false } ] }, { "qid": "KOL-2024-04-3686-Q009", "text": "how to remove main engine liner", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "KOL-2024-04-3686", "tray": "review", "candidates": [ { "answer_id": "CYL-LINER-P03-006", "score": 0.7382289171218872, "sibling_score": 0.7382289171218872, "answer_score": null, "sibling_qid": "KOL-2017-04-1289-Q008", "sibling_text": "removing old liner procedure of main engine and checks br fitting new liner", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Fitting a new cylinder liner — checks and precautions during renewal and installation", "cross_family": false }, { "answer_id": "CYL-LINER-P03-008", "score": 0.6615098118782043, "sibling_score": 0.6615098118782043, "answer_score": 0.5694644987583161, "sibling_qid": "KOC-2026-03-2018-Q002", "sibling_text": "how will take out liner wants everything preprations ra isolations taking cylinder head stuffing box piston what all items you check after removing jacket", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Main-engine cylinder liner removal — full procedure, the lifting tool, and precautions", "cross_family": false }, { "answer_id": "CYL-LINER-P02-002", "score": 0.6238943934440613, "sibling_score": 0.6238943934440613, "answer_score": null, "sibling_qid": "MUM-2026-05-3238-Q009", "sibling_text": "liner seized how to remove", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L2 · T044-PART_02-G002High", "cross_family": false } ] }, { "qid": "KOL-2024-04-3686-Q011", "text": "what bearings fitted on rudder and their purpose, material of rudder carrier bearing", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2024-04-3686", "tray": "review", "candidates": [ { "answer_id": "TRS-002", "score": 0.731717586517334, "sibling_score": 0.731717586517334, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "PRE-TEN-001", "score": 0.6756910681724548, "sibling_score": 0.6756910681724548, "answer_score": null, "sibling_qid": "MUM-2026-09-3970-Q003", "sibling_text": "rudder carrier bearing renewal at sea", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Pre-stressing and pre-tensioning in main-engine bolting", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.6460210680961609, "sibling_score": 0.6460210680961609, "answer_score": null, "sibling_qid": "CHE-2026-02-0110-Q006", "sibling_text": "how rudder weight is carried key ans i said carrier bearing how it carrying explain", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false } ] }, { "qid": "KOL-2024-05-0833-Q002", "text": "Rolling period. How ship rolls. Farmula for rolling", "family": "SOLAS", "subtopic": "Static / Dynamic Stability", "tid": "KOL-2024-05-0833", "tray": "review", "candidates": [ { "answer_id": "BK-002", "score": 0.6749153137207031, "sibling_score": 0.6749153137207031, "answer_score": 0.5350436151027679, "sibling_qid": "KOC-2025-08-0643-Q004", "sibling_text": "bilge keel amplitude of rolling period of roll", "sibling_family": "", "via": "sibling", "answer_title": "How does a bilge keel reduce rolling, and how does it relate to roll period and radius of gyration?", "cross_family": false }, { "answer_id": "STAB-D-001", "score": 0.6325967311859131, "sibling_score": 0.6325967311859131, "answer_score": null, "sibling_qid": "KOL-2023-02-0720-Q004", "sibling_text": "how ship rolls", "sibling_family": "", "via": "sibling", "answer_title": "General Ship Stability - How I Open Any Stability Question", "cross_family": false }, { "answer_id": "PAR-ROLL-001", "score": 0.6309632658958435, "sibling_score": 0.6309632658958435, "answer_score": 0.5094105958938598, "sibling_qid": "KOL-2021-12-0578-Q003", "sibling_text": "parametric rolling relation between rolling and pitching periods", "sibling_family": "", "via": "sibling", "answer_title": "01. What is parametric rolling?", "cross_family": false } ] }, { "qid": "KOL-2024-05-0833-Q003", "text": "MLC titel and objectives", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOL-2024-05-0833", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.5006436109542847, "sibling_score": 0.5006436109542847, "answer_score": 0.25509454905986784, "sibling_qid": "KOC-2026-05-2135-Q011", "sibling_text": "mlc titles explain title 1 explain dmlc part 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "MLC-WRH-B-006", "score": 0.4649916887283325, "sibling_score": 0.4649916887283325, "answer_score": null, "sibling_qid": "MUM-2026-07-3680-Q005", "sibling_text": "what is mlc certificate under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false }, { "answer_id": "CLC-CIV-B-003", "score": 0.46468737721443176, "sibling_score": 0.46468737721443176, "answer_score": null, "sibling_qid": "KOC-2025-03-0583-Q002", "sibling_text": "what is llmc and purpose", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "LLMC: purpose, scope and limitation of maritime claims", "cross_family": true } ] }, { "qid": "KOL-2024-05-0837-Q006", "text": "MLC 2006", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOL-2024-05-0837", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-007", "score": 0.5778295993804932, "sibling_score": 0.5778295993804932, "answer_score": null, "sibling_qid": "MUM-2026-02-0734-Q007", "sibling_text": "mlc 2006 detainable deficiency", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false }, { "answer_id": "MLC-WRH-B-002", "score": 0.4799080789089203, "sibling_score": 0.4799080789089203, "answer_score": null, "sibling_qid": "MUM-2022-07-0027-Q005", "sibling_text": "mlc 2006 wages rest hours", "sibling_family": "MLC", "via": "sibling", "answer_title": "Work and rest hours under MLC — the criteria, the weekly limit, the intervals", "cross_family": false }, { "answer_id": "DUS-P1-03", "score": 0.4670320451259613, "sibling_score": 0.4670320451259613, "answer_score": null, "sibling_qid": "KOL-2023-04-0735-Q004", "sibling_text": "docking plan 5 mlc 2006", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Docking plan — content, purpose and how the 2E uses it", "cross_family": true } ] }, { "qid": "KOL-2024-05-0838-Q005", "text": "Purpose of slop tank other than tank wash residue.", "family": "MARPOL - Annex I (Oil)", "subtopic": "COW / Crude Oil Wash", "tid": "KOL-2024-05-0838", "tray": "review", "candidates": [ { "answer_id": "LTK-386-002", "score": 0.7355709075927734, "sibling_score": 0.7355709075927734, "answer_score": 0.5149899631738662, "sibling_qid": "KOL-2025-09-1048-Q005", "sibling_text": "purpose of slop tank other than tank wash residue", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What is a slop tank and what are its purposes on a tanker?", "cross_family": true }, { "answer_id": "OILRES-DISCH-TOPIC467-FINAL-004", "score": 0.7068197131156921, "sibling_score": 0.7068197131156921, "answer_score": 0.46208150088787076, "sibling_qid": "CHE-2025-12-0328-Q012", "sibling_text": "purposes of slop tank", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Cargo oil residues and the slop tank — purpose, capacity, handling, discharge criteria and reception facilities", "cross_family": false }, { "answer_id": "COW-593-001", "score": 0.6115627884864807, "sibling_score": 0.6115627884864807, "answer_score": null, "sibling_qid": "KOL-2023-09-0768-Q006", "sibling_text": "internal rao purpose of slop tank what is cow washing", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "What is crude oil washing?", "cross_family": false } ] }, { "qid": "KOL-2024-05-0839-Q003", "text": "Functional requirement of WHO", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOL-2024-05-0839", "tray": "new", "candidates": [ { "answer_id": "ISM-AUD-P02-003", "score": 0.5497147440910339, "sibling_score": 0.5497147440910339, "answer_score": null, "sibling_qid": "MUM-2026-09-3989-Q003", "sibling_text": "ism functional requirement", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "The six functional requirements of the ISM Code (clause 1.4)", "cross_family": true }, { "answer_id": "FFA-CODE-003", "score": 0.5460956692695618, "sibling_score": 0.5460956692695618, "answer_score": 0.3546844184398651, "sibling_qid": "KOC-2023-11-0243-Q014", "sibling_text": "functional requirements of ffa", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "What are the functional requirements of the fire-fighting-appliance regime?", "cross_family": true }, { "answer_id": "SMSFR-001", "score": 0.5194758176803589, "sibling_score": 0.5194758176803589, "answer_score": 0.36245839595794677, "sibling_qid": "CHE-2025-08-0025-Q011", "sibling_text": "what are the functional requirements of the ism code", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What are the functional requirements of the ISM Code and the SMS — and the requirement for internal audit?", "cross_family": true } ] }, { "qid": "KOL-2024-05-0840-Q007", "text": "Minimum wages and cross(wants to listen regarding CBA)", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOL-2024-05-0840", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-010", "score": 0.45336538553237915, "sibling_score": 0.45336538553237915, "answer_score": 0.24119003117084503, "sibling_qid": "MUM-2025-11-0573-Q004", "sibling_text": "how are wages set under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "SEA, the CBA parties, and how wages are set — action on non-payment", "cross_family": false }, { "answer_id": "MLC-WRH-B-002", "score": 0.39613020420074463, "sibling_score": 0.39613020420074463, "answer_score": 0.17256737276911735, "sibling_qid": "MUM-2022-07-0027-Q005", "sibling_text": "mlc 2006 wages rest hours", "sibling_family": "MLC", "via": "sibling", "answer_title": "Work and rest hours under MLC — the criteria, the weekly limit, the intervals", "cross_family": false }, { "answer_id": "MLC-WRH-B-011", "score": 0.32353490591049194, "sibling_score": 0.32353490591049194, "answer_score": null, "sibling_qid": "CHE-2026-05-0586-Q017", "sibling_text": "regarding food and grievance which convention", "sibling_family": "MLC", "via": "sibling", "answer_title": "The on-board complaint and grievance procedure", "cross_family": false } ] }, { "qid": "KOL-2024-05-2711-Q001", "text": "Alternator safeties present in MSB and alternator separately ?", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator Protection", "tid": "KOL-2024-05-2711", "tray": "review", "candidates": [ { "answer_id": "SYNC-C-002", "score": 0.7142758965492249, "sibling_score": 0.7142758965492249, "answer_score": null, "sibling_qid": "KOL-2018-01-2172-Q005", "sibling_text": "safeties provided in msb he wanted to here a specific safety related to paralleling of alternators provided in msb other than synchroscope synchro lamps", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Synchronising without a synchroscope — lamp, voltmeter and alternative methods", "cross_family": false }, { "answer_id": "ALT-GEN-P01-001", "score": 0.7093459367752075, "sibling_score": 0.7093459367752075, "answer_score": 0.4998913466930389, "sibling_qid": "KOC-2025-05-1538-Q003", "sibling_text": "alternator safeties mounted on alternator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Alternator/generator safeties and protection trips", "cross_family": false }, { "answer_id": "MSB-ESB-E-001", "score": 0.7086504697799683, "sibling_score": 0.7086504697799683, "answer_score": 0.4718198716640472, "sibling_qid": "KOL-2017-03-2122-Q005", "sibling_text": "msb n alternator safeties", "sibling_family": "", "via": "sibling", "answer_title": "What safeties, protection trips, relays and alarms are provided on the MSB / ESB, and how are they tested?", "cross_family": false } ] }, { "qid": "KOL-2024-05-3688-Q006", "text": "What is Statutory survey and class survey.. V rai.", "family": "Surveys - Statutory", "subtopic": "Audit vs Survey", "tid": "KOL-2024-05-3688", "tray": "new", "candidates": [ { "answer_id": "SURV-GEN-002", "score": 0.593459963798523, "sibling_score": 0.593459963798523, "answer_score": 0.4389369428157806, "sibling_qid": "CHE-2026-04-0163-Q015", "sibling_text": "statutory survey and class survey difference", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Statutory survey versus classification survey", "cross_family": false }, { "answer_id": "SURV-GEN-001", "score": 0.5320096015930176, "sibling_score": 0.5320096015930176, "answer_score": 0.31867425739765165, "sibling_qid": "KOC-2026-05-0044-Q004", "sibling_text": "what are the statutory surveys", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What statutory surveys are carried out on board?", "cross_family": false }, { "answer_id": "CSAS-SURV-002", "score": 0.4744811952114105, "sibling_score": 0.4744811952114105, "answer_score": null, "sibling_qid": "MUM-2025-12-0662-Q003", "sibling_text": "class survey", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Main types of class surveys on a cargo ship", "cross_family": true } ] }, { "qid": "KOL-2024-05-3688-Q010", "text": "J/E inform that oil in engine room bilge, your action .", "family": "MARPOL - Annex I (Oil)", "subtopic": "15 PPM / OWS", "tid": "KOL-2024-05-3688", "tray": "review", "candidates": [ { "answer_id": "SOPEP-003", "score": 0.706462025642395, "sibling_score": 0.706462025642395, "answer_score": null, "sibling_qid": "MUM-2026-03-2639-Q002", "sibling_text": "you are 2 e on ship you see oil shin in cascase tank your action", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Oil Spill and Bunkering-Spill Response under the SOPEP", "cross_family": false }, { "answer_id": "OWS-15PPM-005", "score": 0.7056987881660461, "sibling_score": 0.7056987881660461, "answer_score": null, "sibling_qid": "KOL-2019-05-0283-Q005", "sibling_text": "if ows is not working bilges raising in the engine room actions as 2 e cleared class 2 thanks tobthe group", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "OILRES-DISCH-TOPIC467-FINAL-003", "score": 0.6894944310188293, "sibling_score": 0.6894944310188293, "answer_score": 0.5891611218452454, "sibling_qid": "KOL-2021-07-3433-Q005", "sibling_text": "asked by choudhary sir you joined ship and found bottom floor tank top and bilges oily company has asked you to clean tell me step by step action", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Joined the ship, tank top, floor and bilges are oily — step-by-step cleaning as Second Engineer", "cross_family": false } ] }, { "qid": "KOL-2024-05-3689-Q004", "text": "Oil in boiler gauge glass. Your actions 5. Internal - Risk assessment ? Frequency of risk assessment Finally COC ■ Guys plz do post questions it really matters a lot . class 2 syllabus is more than vast ,do post if you want to pass .■", "family": "Boilers - Operations & Firing", "subtopic": "Scum / Blow Down", "tid": "KOL-2024-05-3689", "tray": "review", "candidates": [ { "answer_id": "SBD-001", "score": 0.8506106734275818, "sibling_score": 0.8506106734275818, "answer_score": 0.618321669101715, "sibling_qid": "KOL-2017-08-3082-Q005", "sibling_text": "what action you will take if you found small amount of oil in boiler gauge glass done with class 2 thanks guys", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "You find oil in the boiler gauge glass — causes, how you identify the source, and your actions as 2/E (including if manoeuvring). What is carryover?", "cross_family": false }, { "answer_id": "LWL-006", "score": 0.5849186241626739, "sibling_score": null, "answer_score": 0.5849186241626739, "sibling_qid": "", "sibling_text": "on watch you find no water in the boiler gauge glass what are your checks and immediate actions what if both gauge glasses read wrong do not feed a possibly dry overheated boiler cold feed on hot metal risks thermal shock cracking explosion secure firing immediately fuel trip fuel off is the safe default", "sibling_family": "", "via": "answer_title", "answer_title": "On watch you find no water in the boiler gauge glass. What are your checks and immediate actions? What if both gauge glasses read wrong?", "cross_family": false }, { "answer_id": "BCFS-001", "score": 0.575887370109558, "sibling_score": null, "answer_score": 0.575887370109558, "sibling_qid": "", "sibling_text": "detecting and responding to oil contamination in the hot well or cascade tank detect oil film or sheen on the observation tank surface smell oiliness in the gauge glass oil in water monitor alarm if fitted foaming or an unstable boiler water level never let oil into the boiler it forms an insulating film on heating surfaces causing local overheating tube bulging and failure and it makes the water ", "sibling_family": "", "via": "answer_title", "answer_title": "Detecting and responding to oil contamination in the hot well or cascade tank", "cross_family": false } ] }, { "qid": "KOL-2024-05-3690-Q005", "text": "What things check for cast iron welding ?", "family": "Workshop & Welding", "subtopic": "Cast Iron Welding", "tid": "KOL-2024-05-3690", "tray": "review", "candidates": [ { "answer_id": "WELD-B-001", "score": 0.712425172328949, "sibling_score": 0.712425172328949, "answer_score": 0.4829371631145477, "sibling_qid": "KOL-2026-09-4305-Q006", "sibling_text": "cast iron welding precaution", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding & crack-repair of aluminium and cast iron, including metal stitching", "cross_family": false }, { "answer_id": "LH-ELEC-006", "score": 0.4971332013607025, "sibling_score": null, "answer_score": 0.4971332013607025, "sibling_qid": "", "sibling_text": "6 how would you approach a cast iron valve repair when the examiner probes welding and low hydrogen electrodes first response replace or fit a sound same size valve a welded cast iron repair is a stop gap not equal to new if welding cast iron not a plain mild steel low hydrogen rod the high carbon makes a hard brittle cracking weld", "sibling_family": "", "via": "answer_title", "answer_title": "6. How would you approach a cast-iron valve repair when the examiner probes welding and low-hydrogen electrodes?", "cross_family": false }, { "answer_id": "PW-327-006", "score": 0.4738170444965362, "sibling_score": null, "answer_score": 0.4738170444965362, "sibling_qid": "", "sibling_text": "6 weld defects undercut and weld testing vacuum box hose ndt two questions on a plate weld is itsound defects and is ittight leak test defects undercut porosity slag inclusion lack of fusion lack of penetration cracks hot cold hydrogen overlap spatter burn through distortion arc strike", "sibling_family": "", "via": "answer_title", "answer_title": "6. Weld defects, undercut, and weld testing (vacuum box, hose, NDT)", "cross_family": false } ] }, { "qid": "KOL-2024-06-0844-Q001", "text": "Type of ship and grt", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2024-06-0844", "tray": "review", "candidates": [ { "answer_id": "TONN-007", "score": 0.692969024181366, "sibling_score": 0.692969024181366, "answer_score": null, "sibling_qid": "MUM-2026-03-0839-Q001", "sibling_text": "type of ship and what is gt nt and displacement", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Differentiate GT, NT, GRT/NRT, DWT, Lightweight and Displacement", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.6617903113365173, "sibling_score": 0.6617903113365173, "answer_score": null, "sibling_qid": "MUM-2026-05-3002-Q001", "sibling_text": "type of ship and all", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.6553088426589966, "sibling_score": 0.6553088426589966, "answer_score": 0.4755749821662903, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "KOL-2024-06-0844-Q003", "text": "purpose of classification society", "family": "Surveys - Statutory", "subtopic": "Condition of Class", "tid": "KOL-2024-06-0844", "tray": "review", "candidates": [ { "answer_id": "IACS-324-002", "score": 0.7368101477622986, "sibling_score": 0.7368101477622986, "answer_score": 0.4332867980003357, "sibling_qid": "CHE-2025-10-0076-Q006", "sibling_text": "what is classification society it s functions", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "2. What is a classification society, why does a ship need class, and what are its functions?", "cross_family": false }, { "answer_id": "CSAS-SURV-001", "score": 0.6825472712516785, "sibling_score": 0.6825472712516785, "answer_score": 0.3780536964535713, "sibling_qid": "MUM-2023-03-0088-Q008", "sibling_text": "classification society", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Certificate of class — what it is, who issues it, what class looks after", "cross_family": true }, { "answer_id": "IACS-324-008", "score": 0.6420795917510986, "sibling_score": 0.6420795917510986, "answer_score": null, "sibling_qid": "KOC-2025-09-0652-Q002", "sibling_text": "surveys under classification society", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "8. What surveys are carried out under a classification society?", "cross_family": false } ] }, { "qid": "KOL-2024-06-1781-Q002", "text": "Turndown ratio in boiler", "family": "Boilers - Operations & Firing", "subtopic": "Burner Type (Rotary Cup / Pressure Jet)", "tid": "KOL-2024-06-1781", "tray": "review", "candidates": [ { "answer_id": "BURNER-TYPE-001", "score": 0.7662476897239685, "sibling_score": 0.7662476897239685, "answer_score": 0.6043509840965271, "sibling_qid": "KOC-2024-03-2043-Q005", "sibling_text": "turndown ratio of boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler burner turn-down ratio", "cross_family": false }, { "answer_id": "TDR-584-001", "score": 0.7659866213798523, "sibling_score": 0.7659866213798523, "answer_score": 0.5454407185316086, "sibling_qid": "KOL-2023-10-1761-Q003", "sibling_text": "turndown ratio of boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "What is the turndown ratio of a marine boiler? Explain.", "cross_family": false }, { "answer_id": "BFS-257-004", "score": 0.5631563305854798, "sibling_score": null, "answer_score": 0.5631563305854798, "sibling_qid": "", "sibling_text": "boiler burner turn down ratio turn down maximum firing rate minimum firing rate with a stable well atomised flame wide turn down follows low demand without on off cycling narrow turn down cycles", "sibling_family": "", "via": "answer_title", "answer_title": "Boiler burner turn-down ratio", "cross_family": false } ] }, { "qid": "KOL-2024-06-1783-Q005", "text": "vaccum condenser is steam turbine why??", "family": "Heat Exchangers & Coolers", "subtopic": "Vacuum Distillation", "tid": "KOL-2024-06-1783", "tray": "new", "candidates": [ { "answer_id": "COPT-BF043-004", "score": 0.6172207593917847, "sibling_score": 0.6172207593917847, "answer_score": 0.6170365273952484, "sibling_qid": "KOC-2021-08-2024-Q009", "sibling_text": "y vaccum is necessary in copt plant extract more work by reducing the condensing temperature he want to here it will increase the temperature diff by keeping vacuum", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "4. Why vacuum is necessary, and signs of falling vacuum", "cross_family": true }, { "answer_id": "VAC-COND-001", "score": 0.6143332719802856, "sibling_score": 0.6143332719802856, "answer_score": 0.5769590646028518, "sibling_qid": "MUM-2026-06-3610-Q009", "sibling_text": "why u need vacuum condenser explain thermodynamics of it", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Purpose, working and thermodynamic principle of the vacuum condenser", "cross_family": true }, { "answer_id": "VAC-COND-002", "score": 0.5838612914085388, "sibling_score": 0.5838612914085388, "answer_score": 0.4563124984502792, "sibling_qid": "MUM-2026-07-3769-Q011", "sibling_text": "vacuum condenser loosed suction reason", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Low vacuum, suction loss and failure to build vacuum — the reasons", "cross_family": false } ] }, { "qid": "KOL-2024-06-1946-Q005", "text": "What is setting of boiler safety valve. How much of pressure setting.(Didn't agree when I said 3% of normal working pressure).", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2024-06-1946", "tray": "review", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-002", "score": 0.7832054495811462, "sibling_score": 0.7832054495811462, "answer_score": null, "sibling_qid": "KOL-2026-02-3922-Q005", "sibling_text": "what is lifting of safety valve tell only within 3 percent of designated set pressure nothing else", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Acceptance limits and durations — the accumulation limit, the maximum test periods, and the action if the limit is exceeded", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.772964596748352, "sibling_score": 0.772964596748352, "answer_score": null, "sibling_qid": "CHE-2026-09-3931-Q006", "sibling_text": "boiler safety valve pressure setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.7501154541969299, "sibling_score": 0.7501154541969299, "answer_score": null, "sibling_qid": "CHE-2026-09-3919-Q009", "sibling_text": "boiler safety valve setting in front of surveyor first and second safety valve pressure difference", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false } ] }, { "qid": "KOL-2024-06-2716-Q005", "text": "how boiler fuel control via differential transmitter ?", "family": "Boilers - Operations & Firing", "subtopic": "Air Fuel Ratio", "tid": "KOL-2024-06-2716", "tray": "review", "candidates": [ { "answer_id": "DP-TX-001", "score": 0.7273160815238953, "sibling_score": 0.7273160815238953, "answer_score": null, "sibling_qid": "MUM-2025-02-1487-Q002", "sibling_text": "boiler fuel dp transmitter working", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "DP cell / DP transmitter — working principle, construction and signal", "cross_family": false }, { "answer_id": "DP-TX-004", "score": 0.6884945034980774, "sibling_score": 0.6884945034980774, "answer_score": null, "sibling_qid": "KOC-2025-03-0570-Q004", "sibling_text": "boiler 3 element control system working of flow sensor dp transmitter", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Differential-pressure flowmeter — principle, types and square-root extraction", "cross_family": false }, { "answer_id": "DP-TX-005", "score": 0.6880988478660583, "sibling_score": 0.6880988478660583, "answer_score": null, "sibling_qid": "MUM-2026-06-3531-Q005", "sibling_text": "dp transmitter of boiler working and calibration", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "DP transmitter calibration, testing, isolation/renewal and precautions", "cross_family": false } ] }, { "qid": "KOL-2024-06-2717-Q005", "text": "Brushless excitation generator construction and working ?", "family": "Electrical - Generator & Alternator", "subtopic": "Brushless Alternator", "tid": "KOL-2024-06-2717", "tray": "review", "candidates": [ { "answer_id": "BRUSHALT-A-001", "score": 0.7574422955513, "sibling_score": 0.7574422955513, "answer_score": 0.5823208808898925, "sibling_qid": "KOL-2021-10-2502-Q002", "sibling_text": "brushless alternator where rotor exciter fitted how current going exciter to main rotor", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01 · Working principle of the brushless alternator / brushless excitation systemHigh", "cross_family": false }, { "answer_id": "AVR-EXC-G-002", "score": 0.5678252667188645, "sibling_score": null, "answer_score": 0.5678252667188645, "sibling_qid": "", "sibling_text": "brushless excitation how dc reaches the rotor avr senses terminal voltage and sets the dc to the stationary exciter field the exciter is inverted field stationary armature rotating on the shaft", "sibling_family": "", "via": "answer_title", "answer_title": "Brushless excitation: how DC reaches the rotor", "cross_family": false }, { "answer_id": "ALT-GEN-P03-003", "score": 0.5327426105737686, "sibling_score": null, "answer_score": 0.5327426105737686, "sibling_qid": "", "sibling_text": "brushless alternator advantages and brushed vs brushless comparison brushed dc excitation reaches rotor through brushes and slip rings brushless avr feeds exciter field exciter output is rectified by rotating diodes to feed main rotor", "sibling_family": "", "via": "answer_title", "answer_title": "Brushless alternator advantages and brushed vs brushless comparison", "cross_family": false } ] }, { "qid": "KOL-2024-06-3693-Q001", "text": "Safety valve survey", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2024-06-3693", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P01-001", "score": 0.7086238861083984, "sibling_score": 0.7086238861083984, "answer_score": null, "sibling_qid": "KOC-2026-09-2205-Q019", "sibling_text": "setting safety valve infront of surveyor", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.6274126768112183, "sibling_score": 0.6274126768112183, "answer_score": null, "sibling_qid": "KOL-2021-08-1614-Q006", "sibling_text": "boiler survey interval types of safety valves improved high lift safety valve in detail", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-003", "score": 0.6209491491317749, "sibling_score": 0.6209491491317749, "answer_score": 0.47208793461322784, "sibling_qid": "MUM-2023-08-2191-Q004", "sibling_text": "safety valve accumulation pr test", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "The accumulation test and the safety valve — required lift, how lift and capacity are verified, and why accumulation must stay inside the limit", "cross_family": false } ] }, { "qid": "KOL-2024-06-3693-Q003", "text": "Rudder checks..what pr to test and why. Painting inside rudder.", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Painting", "tid": "KOL-2024-06-3693", "tray": "new", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.5737819075584412, "sibling_score": 0.5737819075584412, "answer_score": null, "sibling_qid": "KOL-2024-05-3691-Q001", "sibling_text": "clearance on rudder pressure testing painting procedure", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "HULL-PAINT-002", "score": 0.551021933555603, "sibling_score": 0.551021933555603, "answer_score": null, "sibling_qid": "CHE-2026-02-0110-Q012", "sibling_text": "rudder internal painting", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Types of hull coating, the paint scheme by section, and why each is used", "cross_family": false }, { "answer_id": "DUS-P5-05", "score": 0.3563441187143326, "sibling_score": null, "answer_score": 0.3563441187143326, "sibling_qid": "", "sibling_text": "rudder checks and rudder blade tightness leak test in drydock visual checks coating condition cavitation erosion on the blade leading edge propeller side face sacrificial anodes against the approved cathodic protection plan grounding continuity against the approved acceptance criterion plate and weld cracks pintle clearance measured with feeler the numerical acceptance limit is class specific and ", "sibling_family": "", "via": "answer_title", "answer_title": "Rudder checks and rudder-blade tightness/leak test in drydock", "cross_family": false } ] }, { "qid": "KOL-2024-06-3695-Q001", "text": "After cutting off one ME unit at what mcr you can run the engine", "family": "2-Stroke - Operations & Casualty", "subtopic": "Casualty / Emergency Stop", "tid": "KOL-2024-06-3695", "tray": "new", "candidates": [ { "answer_id": "CAS-ESTOP-003", "score": 0.5966448187828064, "sibling_score": 0.5966448187828064, "answer_score": null, "sibling_qid": "MUM-2026-06-3638-Q004", "sibling_text": "how to cut off one unit in me engine", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Cutting out / isolating one main-engine unit (cam and electronically-controlled)", "cross_family": false }, { "answer_id": "MCR-NOR-004", "score": 0.532900333404541, "sibling_score": 0.532900333404541, "answer_score": 0.46199983060359956, "sibling_qid": "KOC-2025-08-1942-Q011", "sibling_text": "turbocharger cut out procedure after cut out what percentage of mcr will you operate the main engine", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "After a turbocharger is cut out, what percentage of MCR can the main engine run at?", "cross_family": true }, { "answer_id": "MCR-NOR-003", "score": 0.5142500996589661, "sibling_score": 0.5142500996589661, "answer_score": null, "sibling_qid": "KOC-2024-10-2054-Q008", "sibling_text": "which condition will run main engine in mcr rpm", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "In what conditions may the main engine be run up to MCR, or beyond it?", "cross_family": true } ] }, { "qid": "KOL-2024-06-3696-Q001", "text": "How to take compression pressure on one unit of running generator", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE 4-Stroke Theory", "tid": "KOL-2024-06-3696", "tray": "new", "candidates": [ { "answer_id": "EGTP-P02-002", "score": 0.612187385559082, "sibling_score": 0.612187385559082, "answer_score": null, "sibling_qid": "KOL-2024-06-3696-Q002", "sibling_text": "reasons for low compression pressure on one unit of generator", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Why Compression Pressure (Pcomp) Can Be Low", "cross_family": true }, { "answer_id": "PMAX-PCOMP-BF041-005", "score": 0.5824695229530334, "sibling_score": 0.5824695229530334, "answer_score": null, "sibling_qid": "KOL-2025-07-3836-Q005", "sibling_text": "how can you measure the compression pressure of 4s", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Why do you take compression pressure separately, and what does it tell you about liner and exhaust valve sealing?", "cross_family": true }, { "answer_id": "STHX-003", "score": 0.5505985021591187, "sibling_score": 0.5505985021591187, "answer_score": null, "sibling_qid": "KOL-2025-03-3760-Q002", "sibling_text": "generator lube oil cooler pressure testing which side to apply pressure inside tube or outside", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "STHX-03 — Pressure and leak testing", "cross_family": true } ] }, { "qid": "KOL-2024-06-3697-Q008", "text": "What tests are carried out in M/E jacket cooling water & values?", "family": "Heat Exchangers & Coolers", "subtopic": "JCW System", "tid": "KOL-2024-06-3697", "tray": "new", "candidates": [ { "answer_id": "BW-TEST-D-001", "score": 0.5754954814910889, "sibling_score": 0.5754954814910889, "answer_score": null, "sibling_qid": "CHE-2025-08-0203-Q009", "sibling_text": "boiler water testings with test value and how it is reacting with chemicals", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Boiler-water treatment — why, and the chemicals used", "cross_family": true }, { "answer_id": "BWTEST-A-001", "score": 0.5711685419082642, "sibling_score": 0.5711685419082642, "answer_score": 0.45449842512607574, "sibling_qid": "MUM-2023-11-2206-Q001", "sibling_text": "boiler water test with value", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": true }, { "answer_id": "JCW-SYS-004", "score": 0.5630523562431335, "sibling_score": 0.5630523562431335, "answer_score": null, "sibling_qid": "KOL-2017-02-3035-Q003", "sibling_text": "engine cooling water test what s the ppm of nitrites to maintain", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Why jacket water is treated - chemicals used, what Rocor NB stands for, the nitrite level maintained, and removing scale", "cross_family": false } ] }, { "qid": "KOL-2024-06-3699-Q002", "text": "How would you repair the rudder carrier bearing if you find out they are completely worn out in the mid sea.", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2024-06-3699", "tray": "review", "candidates": [ { "answer_id": "PRE-TEN-001", "score": 0.7443087100982666, "sibling_score": 0.7443087100982666, "answer_score": null, "sibling_qid": "MUM-2026-09-3970-Q003", "sibling_text": "rudder carrier bearing renewal at sea", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Pre-stressing and pre-tensioning in main-engine bolting", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.679448664188385, "sibling_score": 0.679448664188385, "answer_score": 0.4728416621685028, "sibling_qid": "MUM-2026-06-3610-Q003", "sibling_text": "removal of rudder bearing", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "RUD-DROP-003", "score": 0.6663177609443665, "sibling_score": 0.6663177609443665, "answer_score": null, "sibling_qid": "KOL-2024-03-3677-Q002", "sibling_text": "how to check rudder drop where to fit trammel gauge rudder drop has reached its max limit and bearing white metal has gone how u ll proceed with its repair and what you ll do to bearing", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Rudder drop at the limit: the decision", "cross_family": false } ] }, { "qid": "KOL-2024-07-0845-Q001", "text": "Static and dynamic stability difference?", "family": "SOLAS", "subtopic": "Static / Dynamic Stability", "tid": "KOL-2024-07-0845", "tray": "review", "candidates": [ { "answer_id": "STAB-SD-C-001", "score": 0.7393026947975159, "sibling_score": 0.7393026947975159, "answer_score": 0.5703098773956299, "sibling_qid": "MUM-2026-01-0717-Q005", "sibling_text": "static dymanic stability", "sibling_family": "", "via": "sibling", "answer_title": "Static stability vs dynamic stability — and how each is measured", "cross_family": false }, { "answer_id": "STAB-SD-C-002", "score": 0.5282575845718384, "sibling_score": null, "answer_score": 0.5282575845718384, "sibling_qid": "", "sibling_text": "static stability what it is and what it quantifies", "sibling_family": "", "via": "answer_title", "answer_title": "Static stability — what it is and what it quantifies", "cross_family": false }, { "answer_id": "DAM-STAB-P03-001", "score": 0.5142280280590057, "sibling_score": null, "answer_score": 0.5142280280590057, "sibling_qid": "", "sibling_text": "intact static dynamic and damage stability difference and criteria intact stability means the ship is undamaged damage stability means one or more spaces are assumed flooded and the residual condition is assessed static stability is the righting lever gz at a stated heel angle dynamic stability is the area under the gz curve it represents work or energy to heel the ship through an angle", "sibling_family": "", "via": "answer_title", "answer_title": "Intact, static, dynamic and damage stability: difference and criteria", "cross_family": false } ] }, { "qid": "KOL-2024-07-0845-Q006", "text": "how will u check benzene and H2S? Where will u check this in bulk carrier? Procedure? What will u do after getting value on the tube?(cross)", "family": "", "subtopic": "SOLAS Ch.XII (Bulk Carriers)", "tid": "KOL-2024-07-0845", "tray": "new", "candidates": [ { "answer_id": "BUNK-PLAN-004", "score": 0.5875838994979858, "sibling_score": 0.5875838994979858, "answer_score": null, "sibling_qid": "CHE-2024-06-0397-Q001", "sibling_text": "ce not there bunker barge arrived what you will do start with sopep scrubber plug quantity check bdn flash pont density sulphur content viscosity emergency signal grade of fuel", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Bunker plan: tank selection, quantity / overflow control, calculation and procedure", "cross_family": false }, { "answer_id": "COT-P03-01", "score": 0.585091233253479, "sibling_score": 0.585091233253479, "answer_score": 0.5057022482156753, "sibling_qid": "MUM-2024-12-0229-Q007", "sibling_text": "how will you check toxic gases and beneze", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "H₂S, benzene and toxic-cargo vapour exposure — hazards, limits, PPE and respirator checks", "cross_family": false }, { "answer_id": "TNK-SAFE-BF26-004", "score": 0.5769504308700562, "sibling_score": 0.5769504308700562, "answer_score": null, "sibling_qid": "KOC-2023-03-0163-Q003", "sibling_text": "what action to take it hc detected in ballast tank", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What safeties are fitted in the ballast tank of a tanker, and what do you do if hydrocarbon is detected?", "cross_family": false } ] }, { "qid": "KOL-2024-07-0845-Q007", "text": "Permit to work system? Explain?", "family": "Risk & Safety Management", "subtopic": "Permit to Work / Enclosed Space", "tid": "KOL-2024-07-0845", "tray": "new", "candidates": [ { "answer_id": "ESE-P01-003", "score": 0.5176830887794495, "sibling_score": 0.5176830887794495, "answer_score": 0.32070616036653515, "sibling_qid": "KOL-2022-03-0607-Q003", "sibling_text": "enclosed entry what checks what is permit", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "General enclosed-space entry procedure as second engineer", "cross_family": false }, { "answer_id": "AIR-DIST-002", "score": 0.4907364547252655, "sibling_score": 0.4907364547252655, "answer_score": null, "sibling_qid": "MUM-2022-12-1037-Q003", "sibling_text": "starting system explain", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Control-air route and starting sequence through the air distributor", "cross_family": true }, { "answer_id": "CPFE-583-001", "score": 0.42479702830314636, "sibling_score": 0.42479702830314636, "answer_score": null, "sibling_qid": "MUM-2025-01-2267-Q003", "sibling_text": "framo system working", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "The Framo system — what it is, how it works, and the driving mechanism", "cross_family": true } ] }, { "qid": "KOL-2024-07-0849-Q001", "text": "Type of ship: Product & Chem tanker", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2024-07-0849", "tray": "review", "candidates": [ { "answer_id": "CPFE-583-002", "score": 0.8513079285621643, "sibling_score": 0.8513079285621643, "answer_score": null, "sibling_qid": "MUM-2026-06-3604-Q002", "sibling_text": "type of ship chemical product", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Why a submerged hydraulic pump on a product or chemical tanker — and what makes a cargo pump different", "cross_family": false }, { "answer_id": "IBC-BCH-B-004", "score": 0.8412535786628723, "sibling_score": 0.8412535786628723, "answer_score": null, "sibling_qid": "MUM-2026-05-3156-Q001", "sibling_text": "type of ships chemical tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Certificate of Fitness and MARPOL Annex II in practice", "cross_family": false }, { "answer_id": "BCH-IBC-A-001", "score": 0.8364977240562439, "sibling_score": 0.8364977240562439, "answer_score": null, "sibling_qid": "CHE-2026-03-0128-Q001", "sibling_text": "type of chemical tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type 1, Type 2 and Type 3 chemical tankers — the ship-type classification", "cross_family": false } ] }, { "qid": "KOL-2024-07-1947-Q002", "text": "Types of ship Sailed,Specification", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2024-07-1947", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.786982536315918, "sibling_score": 0.786982536315918, "answer_score": null, "sibling_qid": "CHE-2026-09-3938-Q001", "sibling_text": "types of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7690728306770325, "sibling_score": 0.7690728306770325, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7613033652305603, "sibling_score": 0.7613033652305603, "answer_score": null, "sibling_qid": "CHE-2026-03-0253-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "KOL-2024-07-1947-Q003", "text": "How bedplate is fitted in new engine.", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Bedplate / Chocks / HDB", "tid": "KOL-2024-07-1947", "tray": "new", "candidates": [ { "answer_id": "CHK-330-004", "score": 0.5944700241088867, "sibling_score": 0.5944700241088867, "answer_score": 0.49034200310707093, "sibling_qid": "MUM-2026-03-1306-Q014S4", "sibling_text": "bed plate parts choking arrangement alignment of shaft intermediate shaft take out procedure", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Chocking arrangement on the main engine bedplate seating", "cross_family": false }, { "answer_id": "TR-TB-PA-001", "score": 0.5902010798454285, "sibling_score": 0.5902010798454285, "answer_score": null, "sibling_qid": "KOL-2024-04-3686-Q003", "sibling_text": "how firing forces transmitted tie rods arrangement how fitted how crankshaft rests on bedplate how bed plate girders fitted", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Function of tie rods and the firing-load path", "cross_family": false }, { "answer_id": "ETP-344-P01-008", "score": 0.5435631275177002, "sibling_score": 0.5435631275177002, "answer_score": null, "sibling_qid": "MUM-2026-06-3525-Q003", "sibling_text": "what are the check and testing done on bed plate while running of an engine", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Verifying power — shop test, test bed, sea trial", "cross_family": false } ] }, { "qid": "KOL-2024-07-1947-Q004", "text": "How chocks are fitted in engine and location.", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Chocks (Resin/Metal)", "tid": "KOL-2024-07-1947", "tray": "review", "candidates": [ { "answer_id": "BED-CHOCK-003", "score": 0.6907051205635071, "sibling_score": 0.6907051205635071, "answer_score": 0.48184616565704347, "sibling_qid": "MUM-2024-07-1083-Q004", "sibling_text": "how chocks are fitted in engine and location", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Where are side and end chocks fitted, and what checks are carried out on them?", "cross_family": false }, { "answer_id": "BED-CHOCK-002", "score": 0.6776652336120605, "sibling_score": 0.6776652336120605, "answer_score": null, "sibling_qid": "MUM-2026-07-3818-Q002", "sibling_text": "how the chocks are there in main engine", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What is the function of main-engine chocks?", "cross_family": false }, { "answer_id": "CHK-RM-001", "score": 0.6082553267478943, "sibling_score": 0.6082553267478943, "answer_score": null, "sibling_qid": "KOL-2025-03-1970-Q007", "sibling_text": "chocks fitting and type where fittted", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What are chocks? Function, types, where fitted and how placed — which have the biggest area, and how does the bedplate connect to the hull?", "cross_family": false } ] }, { "qid": "KOL-2024-07-1947-Q008", "text": "Cast Iron welding Procedure ?", "family": "Workshop & Welding", "subtopic": "Cast Iron Welding", "tid": "KOL-2024-07-1947", "tray": "review", "candidates": [ { "answer_id": "WELD-B-001", "score": 0.8382328152656555, "sibling_score": 0.8382328152656555, "answer_score": 0.5507133662700653, "sibling_qid": "CHE-2026-05-0531-Q005", "sibling_text": "cast iron welding procedure", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding & crack-repair of aluminium and cast iron, including metal stitching", "cross_family": false }, { "answer_id": "LH-ELEC-006", "score": 0.5105904579162598, "sibling_score": null, "answer_score": 0.5105904579162598, "sibling_qid": "", "sibling_text": "6 how would you approach a cast iron valve repair when the examiner probes welding and low hydrogen electrodes first response replace or fit a sound same size valve a welded cast iron repair is a stop gap not equal to new if welding cast iron not a plain mild steel low hydrogen rod the high carbon makes a hard brittle cracking weld", "sibling_family": "", "via": "answer_title", "answer_title": "6. How would you approach a cast-iron valve repair when the examiner probes welding and low-hydrogen electrodes?", "cross_family": false }, { "answer_id": "PW-327-004", "score": 0.5055538535118103, "sibling_score": null, "answer_score": 0.5055538535118103, "sibling_qid": "", "sibling_text": "4 surface preparation before welding clean to bright metal each side of the joint rust loose mill scale paint oil grease moisture and old slag all removed edge preparation to the joint design bevel groove root face root gap deburr", "sibling_family": "", "via": "answer_title", "answer_title": "4. Surface preparation before welding", "cross_family": false } ] }, { "qid": "KOL-2024-07-1948-Q001", "text": "Type of engine sailed", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOL-2024-07-1948", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8491267561912537, "sibling_score": 0.8491267561912537, "answer_score": null, "sibling_qid": "MUM-2026-04-1007-Q002", "sibling_text": "type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.7682849764823914, "sibling_score": 0.7682849764823914, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q001", "sibling_text": "type of ship sailed and engines details", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7361353635787964, "sibling_score": 0.7361353635787964, "answer_score": null, "sibling_qid": "KOL-2025-12-2031-Q002", "sibling_text": "type of ship and engine sailed engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "KOL-2024-07-1948-Q018", "text": "Paased", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOL-2024-07-1948", "tray": "new", "candidates": [ { "answer_id": "EEZ-PSSA-001", "score": 0.5344663858413696, "sibling_score": 0.5344663858413696, "answer_score": null, "sibling_qid": "MUM-2026-03-0864-Q017", "sibling_text": "pssa", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "PSSA — what it is, who designates it, and how it differs from a MARPOL special area", "cross_family": true }, { "answer_id": "BUNK-SAMP-003", "score": 0.5149021148681641, "sibling_score": 0.5149021148681641, "answer_score": null, "sibling_qid": "KOC-2025-02-2060-Q022", "sibling_text": "approved", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "The sampling connection / flange and drip-sampler arrangement", "cross_family": true }, { "answer_id": "PPS-622-004", "score": 0.5029958486557007, "sibling_score": 0.5029958486557007, "answer_score": null, "sibling_qid": "KOL-2021-11-3489-Q005", "sibling_text": "bildge p p not taking from aft bildge well", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "The bilge or ballast pump is not taking suction — reasons, how to identify the problem, how to rectify it. What does the suction gauge read, and what is suction head?", "cross_family": true } ] }, { "qid": "KOL-2024-07-1948-Q019", "text": "Got COC.\t■", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOL-2024-07-1948", "tray": "new", "candidates": [ { "answer_id": "CERT-LIST-P01-001", "score": 0.5970265865325928, "sibling_score": 0.5970265865325928, "answer_score": null, "sibling_qid": "MUM-2026-03-2596-Q007", "sibling_text": "finally coc", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "List the statutory certificates carried onboard a ship.", "cross_family": true }, { "answer_id": "COC-001", "score": 0.5089460015296936, "sibling_score": 0.5089460015296936, "answer_score": null, "sibling_qid": "KOL-2025-07-0978-Q001", "sibling_text": "what is coc where it is found", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is a Condition of Class? Give examples, say where it is found, how much time is given to rectify it, and what happens if it is not met in time.", "cross_family": true }, { "answer_id": "FSE-P03-002", "score": 0.48217272758483887, "sibling_score": 0.48217272758483887, "answer_score": null, "sibling_qid": "KOC-2025-12-0747-Q004", "sibling_text": "what happens to cog", "sibling_family": "", "via": "sibling", "answer_title": "2. Effect on ship stability — GM, GZ and centre of gravity", "cross_family": false } ] }, { "qid": "KOL-2024-07-1949-Q001", "text": "How Crosshead and guides are lubricated. Telescopic pipe.", "family": "2-Stroke - Components (Other)", "subtopic": "Piston Cooling / Telescopic Pipe", "tid": "KOL-2024-07-1949", "tray": "new", "candidates": [ { "answer_id": "XHD-BRG-C-004", "score": 0.6186683773994446, "sibling_score": 0.6186683773994446, "answer_score": null, "sibling_qid": "KOL-2026-03-2045-Q003", "sibling_text": "crosshead bearing lubrication how guide shoes are getting lubricated", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "D. 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Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2024-07-1949", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P01-001", "score": 0.83265620470047, "sibling_score": 0.83265620470047, "answer_score": null, "sibling_qid": "MUM-2026-03-2935-Q013", "sibling_text": "boiler safety valve setting in presence of surveyor after survey", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.8048720955848694, "sibling_score": 0.8048720955848694, "answer_score": null, "sibling_qid": "KOL-2021-08-1614-Q006", "sibling_text": "boiler survey interval types of safety valves improved high lift safety valve in detail", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACRV-005", "score": 0.7753040790557861, "sibling_score": 0.7753040790557861, "answer_score": null, "sibling_qid": "MUM-2026-06-3549-Q005", "sibling_text": "boiler safety valve maximum questions", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": false } ] }, { "qid": "KOL-2024-07-2722-Q004", "text": "Checks to carry out in starter circuit, what checks to carry out in contactors, how will you ensure contactor is contacting well or not ?", "family": "Electrical - Protection & Relays", "subtopic": "Protection / Relays", "tid": "KOL-2024-07-2722", "tray": "review", "candidates": [ { "answer_id": "OCR-185-001", "score": 0.660792887210846, "sibling_score": 0.660792887210846, "answer_score": null, "sibling_qid": "KOL-2022-03-2549-Q006", "sibling_text": "oc relay how to test", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Testing an overcurrent relay / overcurrent trip onboard", "cross_family": false }, { "answer_id": "OC-UV-TRIP-001", "score": 0.6472043395042419, "sibling_score": 0.6472043395042419, "answer_score": null, "sibling_qid": "KOC-2021-09-1146-Q014", "sibling_text": "approved voltage injection tester connect it to same leads and test at what voltage it trips", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Under-voltage trip / no-volt coil — purpose, working, onboard test and calibration", "cross_family": false }, { "answer_id": "SHFT-ERTH-300-001", "score": 0.6436037421226501, "sibling_score": 0.6436037421226501, "answer_score": null, "sibling_qid": "KOL-2023-09-2678-Q005", "sibling_text": "shaft earthing why 5 skd what will you check in contactor reverse power trip", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Purpose, principle and arrangement", "cross_family": false } ] }, { "qid": "KOL-2024-07-2723-Q001", "text": "Meaning of salient in salient pole rotor ?", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator / Generator", "tid": "KOL-2024-07-2723", "tray": "review", "candidates": [ { "answer_id": "SYNC-ASYNC-A-002", "score": 0.6506236791610718, "sibling_score": 0.6506236791610718, "answer_score": 0.43896840512752533, "sibling_qid": "KOL-2022-09-4012-Q003", "sibling_text": "salient rotor construction", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Construction and main parts of a synchronous motor", "cross_family": true }, { "answer_id": "SYNC-ASY-C-001", "score": 0.5480473041534424, "sibling_score": 0.5480473041534424, "answer_score": null, "sibling_qid": "KOC-2026-05-0028-Q013", "sibling_text": "internal synchronous motor explain both stator and rotor are stationary how the flux will cut key ans he wanted rotating magnetic field", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Working principle of a synchronous motor", "cross_family": false }, { "answer_id": "ROT-STAT-A-002", "score": 0.5163236856460571, "sibling_score": 0.5163236856460571, "answer_score": null, "sibling_qid": "KOL-2016-08-2065-Q003", "sibling_text": "rotor construction of motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Rotor and stator construction of a three-phase induction motor", "cross_family": true } ] }, { "qid": "KOL-2024-08-0851-Q002", "text": "Arrangement for pumping out in case of flooding of forecastle", "family": "Pumps - Centrifugal & PD", "subtopic": "Bilge Line / Pump", "tid": "KOL-2024-08-0851", "tray": "review", "candidates": [ { "answer_id": "PPS-622-004", "score": 0.6574481129646301, "sibling_score": 0.6574481129646301, "answer_score": null, "sibling_qid": "CHE-2026-05-0544-Q005", "sibling_text": "bilge pump out procedures", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "The bilge or ballast pump is not taking suction — reasons, how to identify the problem, how to rectify it. What does the suction gauge read, and what is suction head?", "cross_family": false }, { "answer_id": "PCD-P04-02", "score": 0.6559436917304993, "sibling_score": 0.6559436917304993, "answer_score": null, "sibling_qid": "MUM-2025-06-2325-Q004", "sibling_text": "bilge water filled upto floor level actions to start emergency bilge suction", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "02. Emergency bilge suction — the bilge injection valve, testing and SOLAS requirements", "cross_family": false }, { "answer_id": "PCD-P04-03", "score": 0.6505973935127258, "sibling_score": 0.6505973935127258, "answer_score": 0.4959284633398056, "sibling_qid": "KOL-2019-03-0270-Q002", "sibling_text": "if bilge pump can be operated from the fire control room explain how the pumping of bilge well to bilge tank takes place explain the alarms that initiate the automatic pumping sequence and the alarms that may arise from the pump when the auto pumping is underway", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "03. Engine-room bilge / dewatering system — arrangement, auto pumping and MARPOL routing", "cross_family": false } ] }, { "qid": "KOL-2024-08-0852-Q003", "text": "Where do we use enhanced safety motor on ship", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOL-2024-08-0852", "tray": "new", "candidates": [ { "answer_id": "BOW-THR-002", "score": 0.5329819321632385, "sibling_score": 0.5329819321632385, "answer_score": null, "sibling_qid": "MUM-2026-01-1850-Q002", "sibling_text": "safeties of motor for bow thruster", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Starting a bow thruster — validation, checks, safeties and interlocks", "cross_family": false }, { "answer_id": "IM-1PH-001", "score": 0.5266594886779785, "sibling_score": 0.5266594886779785, "answer_score": null, "sibling_qid": "KOC-2025-04-1525-Q009", "sibling_text": "purifier motor single phasing what all indications int have you been to forecastle on your ship what are the protection and safeties provided for mooring winch motors", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Single-phasing — a three-phase motor (e.g. purifier) running on one lost phase, and its indications", "cross_family": false }, { "answer_id": "HAZ-EX-B-001", "score": 0.5227360725402832, "sibling_score": 0.5227360725402832, "answer_score": null, "sibling_qid": "MUM-2026-07-3730-Q004", "sibling_text": "intrinsically safe equipment s where used on ship examples of equipment s", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Intrinsically safe (Ex i) equipment — what it is, how it works, where it is used, how you identify it", "cross_family": false } ] }, { "qid": "KOL-2024-08-0852-Q004", "text": "Balance rudder, why not used", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2024-08-0852", "tray": "new", "candidates": [ { "answer_id": "STEER-055-A-004", "score": 0.5488666296005249, "sibling_score": 0.5488666296005249, "answer_score": null, "sibling_qid": "KOL-2019-02-3212-Q005", "sibling_text": "rudder is taking more to come from one side to the other reasons and maintenance", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Hydraulic faults — air, sluggish response, locking, leakage", "cross_family": false }, { "answer_id": "TRS-001", "score": 0.5362455248832703, "sibling_score": 0.5362455248832703, "answer_score": null, "sibling_qid": "KOL-2019-05-3236-Q005", "sibling_text": "rudder stock twisted how will you balance it how to find changed mishsip position", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "The rudder stock is twisted — how do you proceed, recover the true midship datum, and what regulations let you proceed to the next port?", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.5178087949752808, "sibling_score": 0.5178087949752808, "answer_score": null, "sibling_qid": "MUM-2026-06-3584-Q005", "sibling_text": "what takes weight of rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false } ] }, { "qid": "KOL-2024-08-0853-Q003", "text": "Continental shelf", "family": "Other Conventions", "subtopic": "UNCLOS", "tid": "KOL-2024-08-0853", "tray": "review", "candidates": [ { "answer_id": "UNCLOS-004", "score": 0.8502828478813171, "sibling_score": 0.8502828478813171, "answer_score": 0.5658064603805542, "sibling_qid": "KOL-2026-03-1198-Q008", "sibling_text": "continental shelf", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is the continental shelf under UNCLOS and what is its range?", "cross_family": false }, { "answer_id": "UNCLOS-003", "score": 0.6520231366157532, "sibling_score": 0.6520231366157532, "answer_score": 0.43082640469074246, "sibling_qid": "KOL-2025-09-1054-Q007", "sibling_text": "territorial waters", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What are the maritime zones under UNCLOS — territorial waters, the contiguous zone and the international maritime boundary?", "cross_family": false }, { "answer_id": "UNCLOS-005", "score": 0.6401429176330566, "sibling_score": 0.6401429176330566, "answer_score": 0.47124817967414856, "sibling_qid": "KOC-2024-07-0359-Q001", "sibling_text": "coastal state requirements as per unclos", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is a coastal state under UNCLOS, and how does it differ from the flag state and the port state?", "cross_family": false } ] }, { "qid": "KOL-2024-08-0854-Q002", "text": "All chapters of ism", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOL-2024-08-0854", "tray": "review", "candidates": [ { "answer_id": "ISM-ELEM-003", "score": 0.8005997538566589, "sibling_score": 0.8005997538566589, "answer_score": 0.4247472882270813, "sibling_qid": "MUM-2024-08-0195-Q002", "sibling_text": "all chapters of ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": false }, { "answer_id": "ISM-AUD-P02-002", "score": 0.692244827747345, "sibling_score": 0.692244827747345, "answer_score": null, "sibling_qid": "KOL-2019-02-3209-Q005", "sibling_text": "ism chapters specifically how many numbers", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM Code — what it is, purpose, objectives and structure", "cross_family": false }, { "answer_id": "SOLAS-CH-015", "score": 0.5215436220169067, "sibling_score": 0.5215436220169067, "answer_score": 0.40350799858570097, "sibling_qid": "KOC-2026-05-2133-Q003", "sibling_text": "solas all chapters", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS chapters overview - current count and scope", "cross_family": true } ] }, { "qid": "KOL-2024-08-0856-Q001", "text": "Type of Ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2024-08-0856", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.836766242980957, "sibling_score": 0.836766242980957, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8020406365394592, "sibling_score": 0.8020406365394592, "answer_score": 0.5474629700183868, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8004519939422607, "sibling_score": 0.8004519939422607, "answer_score": 0.5221094131469727, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "KOL-2024-08-0856-Q005", "text": "Class servey, RO and may cross ( not satisfied on cross ques)", "family": "Surveys - Statutory", "subtopic": "Condition of Class", "tid": "KOL-2024-08-0856", "tray": "new", "candidates": [ { "answer_id": "COC-001", "score": 0.5911305546760559, "sibling_score": 0.5911305546760559, "answer_score": null, "sibling_qid": "KOC-2021-11-0038-Q008", "sibling_text": "condition of class lot of cross questions", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is a Condition of Class? Give examples, say where it is found, how much time is given to rectify it, and what happens if it is not met in time.", "cross_family": false }, { "answer_id": "CSAS-SURV-004", "score": 0.5393809080123901, "sibling_score": 0.5393809080123901, "answer_score": null, "sibling_qid": "KOC-2024-03-0324-Q004", "sibling_text": "whats an additional survey many cross", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Annual vs intermediate vs periodical vs additional survey", "cross_family": true }, { "answer_id": "SVY-SCOPE-001", "score": 0.5235928297042847, "sibling_score": 0.5235928297042847, "answer_score": null, "sibling_qid": "MUM-2026-07-3784-Q005", "sibling_text": "which surveys ce can t do alone", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Which statutory or Class surveys can a Chief Engineer not carry out alone?", "cross_family": false } ] }, { "qid": "KOL-2024-08-0857-Q003", "text": "What is London Dumping Convention.", "family": "Other Conventions", "subtopic": "EEZ / PSSA / Special Area", "tid": "KOL-2024-08-0857", "tray": "new", "candidates": [ { "answer_id": "CLC-CIV-B-003", "score": 0.4977649450302124, "sibling_score": 0.4977649450302124, "answer_score": null, "sibling_qid": "MUM-2024-02-0161-Q001", "sibling_text": "clc convention llmc bunker convention", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "LLMC: purpose, scope and limitation of maritime claims", "cross_family": false }, { "answer_id": "CLC-CIV-A-007", "score": 0.4723033308982849, "sibling_score": 0.4723033308982849, "answer_score": null, "sibling_qid": "KOL-2025-09-1061-Q006", "sibling_text": "clc and bunker convention", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Bunker Convention — scope, liability and certificate", "cross_family": false }, { "answer_id": "HKC-IHM-A-003", "score": 0.45504409074783325, "sibling_score": 0.45504409074783325, "answer_score": null, "sibling_qid": "KOL-2025-10-4065-Q002", "sibling_text": "hong kong convention how hongkong convention makes sure rules are followed what are key features of the convention how do proper recycling xxxxxx", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Ship recycling process under the Hong Kong Convention", "cross_family": false } ] }, { "qid": "KOL-2024-08-0858-Q004", "text": "Tonnage Convention Vs Loadline Convention? 5 . ESP CODE & scheme.", "family": "SOLAS", "subtopic": "Load Line Convention", "tid": "KOL-2024-08-0858", "tray": "new", "candidates": [ { "answer_id": "LLC-P05-001", "score": 0.6286509037017822, "sibling_score": 0.6286509037017822, "answer_score": null, "sibling_qid": "KOL-2026-05-0056-Q004", "sibling_text": "difference between loadline convention and tonnage convention", "sibling_family": "", "via": "sibling", "answer_title": "Freeboard, deck line, Plimsoll mark, assignment and scantling draft", "cross_family": false }, { "answer_id": "TONN-007", "score": 0.5579599142074585, "sibling_score": 0.5579599142074585, "answer_score": 0.48050103783607484, "sibling_qid": "KOL-2019-10-0345-Q001", "sibling_text": "load line survey tonnage certificate nrt grt", "sibling_family": "", "via": "sibling", "answer_title": "Differentiate GT, NT, GRT/NRT, DWT, Lightweight and Displacement", "cross_family": false }, { "answer_id": "LL-CONV-P06-001", "score": 0.5522744655609131, "sibling_score": 0.5522744655609131, "answer_score": null, "sibling_qid": "MUM-2025-06-0308-Q005", "sibling_text": "type a type b ship as per load line convention", "sibling_family": "", "via": "sibling", "answer_title": "LLC-P06-01 - Ship categories and freeboard differences: Type A, Type B and practical ship cases", "cross_family": false } ] }, { "qid": "KOL-2024-08-0859-Q005", "text": "capacity plan of vessel?", "family": "Ship Construction & Stability", "subtopic": "GA Plan / General Arrangement", "tid": "KOL-2024-08-0859", "tray": "review", "candidates": [ { "answer_id": "STAB-BOOK-006", "score": 0.7070508003234863, "sibling_score": 0.7070508003234863, "answer_score": 0.5349277973175048, "sibling_qid": "KOC-2026-03-0880-Q009", "sibling_text": "explain capacity plan of ship", "sibling_family": "", "via": "sibling", "answer_title": "Capacity and stability information from the booklet (capacity plan)", "cross_family": false }, { "answer_id": "DCP-FIXED-A-003", "score": 0.6036351323127747, "sibling_score": 0.6036351323127747, "answer_score": null, "sibling_qid": "MUM-2026-03-2929-Q004", "sibling_text": "capacity of dcp on ship", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Capacities, pressures, relief settings, regulations and calculation", "cross_family": true }, { "answer_id": "COT-14", "score": 0.5707473754882812, "sibling_score": 0.5707473754882812, "answer_score": null, "sibling_qid": "KOL-2023-03-0727-Q004", "sibling_text": "sbt capacity formula for trim and draft for sbt capacity requirement", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "SBT applicability, capacity and draught criteria", "cross_family": true } ] }, { "qid": "KOL-2024-08-1950-Q003", "text": "Effective and idle stroke difference between me and ae", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Effective Stroke", "tid": "KOL-2024-08-1950", "tray": "new", "candidates": [ { "answer_id": "AV6-P05-02", "score": 0.515468180179596, "sibling_score": 0.515468180179596, "answer_score": null, "sibling_qid": "KOL-2024-03-0821-Q004", "sibling_text": "4 aer and eeoi difference 5 5", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "AER versus EEOI — formulas, denominators and calculation period", "cross_family": true }, { "answer_id": "AEME-DIFF-001", "score": 0.5103650689125061, "sibling_score": 0.5103650689125061, "answer_score": null, "sibling_qid": "MUM-2025-07-1149-Q002", "sibling_text": "construction difference between me and ae", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": true }, { "answer_id": "GOV-082-P01-003", "score": 0.5063396096229553, "sibling_score": 0.5063396096229553, "answer_score": null, "sibling_qid": "KOL-2026-03-2975-Q002", "sibling_text": "diff between ae and me governor", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Difference between main-engine and auxiliary-engine governors (and why)", "cross_family": true } ] }, { "qid": "KOL-2024-08-2724-Q003", "text": "Working of proportional valve in pneumatic control diaphragm operated automated valve ?", "family": "Steering Gear & Hydraulics", "subtopic": "Hydraulic Valves", "tid": "KOL-2024-08-2724", "tray": "review", "candidates": [ { "answer_id": "PID-CTRL-003", "score": 0.6555252075195312, "sibling_score": 0.6555252075195312, "answer_score": null, "sibling_qid": "KOC-2021-05-2022-Q007", "sibling_text": "working of proportional controller", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Proportional gain and proportional band", "cross_family": true }, { "answer_id": "FOAM-SYS-P04-002", "score": 0.6528573036193848, "sibling_score": 0.6528573036193848, "answer_score": null, "sibling_qid": "KOC-2026-01-0785-Q010", "sibling_text": "how proportionetor working", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "1. Foam proportioner — how it works", "cross_family": true }, { "answer_id": "RVSG-213-004", "score": 0.6486154198646545, "sibling_score": 0.6486154198646545, "answer_score": null, "sibling_qid": "KOC-2026-09-2205-Q011", "sibling_text": "steering gear emergency operation and working of proportional valve", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Redundancy, emergency steering, local operation & bypass", "cross_family": false } ] }, { "qid": "KOL-2024-08-2724-Q005", "text": "Safeties mounted on alternator ?don't include safeties provided outside alternator ?", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator Protection", "tid": "KOL-2024-08-2724", "tray": "review", "candidates": [ { "answer_id": "ALT-GEN-P01-001", "score": 0.8404021859169006, "sibling_score": 0.8404021859169006, "answer_score": 0.5429367542266845, "sibling_qid": "KOC-2025-05-1538-Q003", "sibling_text": "alternator safeties mounted on alternator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Alternator/generator safeties and protection trips", "cross_family": false }, { "answer_id": "SHAFT-GEN-005", "score": 0.5145117461681366, "sibling_score": null, "answer_score": 0.5145117461681366, "sibling_qid": "", "sibling_text": "safeties provided for a shaft generator standard alternator protections over current short circuit over under voltage over under frequency reverse power paralleled earth fault and preferential load shedding trips sg specific interlocks breaker closes only when synchronised clutch gear engagement interlocks", "sibling_family": "", "via": "answer_title", "answer_title": "Safeties provided for a shaft generator", "cross_family": false }, { "answer_id": "ALT-MAINT-A-001", "score": 0.46981834173202514, "sibling_score": null, "answer_score": 0.46981834173202514, "sibling_qid": "", "sibling_text": "routine maintenance care of a ship s alternator make safe first permit to work isolate rack out and lock off the breaker immobilise the prime mover the set is engine driven a blackout dead bus auto start can crank it prove dead discharge the windings the space heater supply is separate it stays live after the alternator breaker is open isolate it independently before touching the windings", "sibling_family": "", "via": "answer_title", "answer_title": "Routine maintenance & care of a ship’s alternator", "cross_family": false } ] }, { "qid": "KOL-2024-08-2726-Q003", "text": "Bridge rectifier working?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Zener / Diode / Rectifier", "tid": "KOL-2024-08-2726", "tray": "review", "candidates": [ { "answer_id": "EPC-P01-03", "score": 0.777028501033783, "sibling_score": 0.777028501033783, "answer_score": 0.4693812638521194, "sibling_qid": "KOL-2018-09-2226-Q004", "sibling_text": "rectifier uses bridge rectifier working", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Rectifiers — definition, types, and where they are used on board", "cross_family": false }, { "answer_id": "EPC-P01-02", "score": 0.7113395929336548, "sibling_score": 0.7113395929336548, "answer_score": null, "sibling_qid": "CHE-2026-05-0603-Q005", "sibling_text": "name some diode uses bridge rectifier", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Types of diodes, and where diodes are used on board", "cross_family": false }, { "answer_id": "VOLT-SYS-008", "score": 0.6644918918609619, "sibling_score": 0.6644918918609619, "answer_score": null, "sibling_qid": "KOL-2022-07-2582-Q004", "sibling_text": "equipments on bridge supply voltage", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Why standard shipboard voltages: 440, 230/220, 110 and 24", "cross_family": false } ] }, { "qid": "KOL-2024-08-2726-Q005", "text": "DOL starter, control circuit( start push button working) ?", "family": "Electrical - Motors & Starters", "subtopic": "DOL Starter", "tid": "KOL-2024-08-2726", "tray": "review", "candidates": [ { "answer_id": "STR-DEC-A-001", "score": 0.6571745872497559, "sibling_score": 0.6571745872497559, "answer_score": null, "sibling_qid": "KOC-2024-11-1430-Q001", "sibling_text": "dol starter diagram current value", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "SDST-A-001", "score": 0.6472657918930054, "sibling_score": 0.6472657918930054, "answer_score": null, "sibling_qid": "MUM-2026-06-3586-Q007", "sibling_text": "star delta starter working", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false }, { "answer_id": "STARTER-DEC-B-003", "score": 0.6405859589576721, "sibling_score": 0.6405859589576721, "answer_score": 0.47746631801128386, "sibling_qid": "KOC-2026-09-2184-Q010", "sibling_text": "explain dol starter dol starters where used", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "DOL starter — use, current, range and limits", "cross_family": false } ] }, { "qid": "KOL-2024-08-2726-Q006", "text": "Group Starter ? colour coding in MSB for group starter ? related to the preferential trips and so on ?", "family": "", "subtopic": "MSB / ESB / Switchboard", "tid": "KOL-2024-08-2726", "tray": "new", "candidates": [ { "answer_id": "MSB-ESB-A-003", "score": 0.5728409290313721, "sibling_score": 0.5728409290313721, "answer_score": null, "sibling_qid": "MUM-2026-02-1953-Q002", "sibling_text": "what is group starter panel what does the colour coding indicates", "sibling_family": "", "via": "sibling", "answer_title": "Feeder panels, group-starter panels and motor panels", "cross_family": false }, { "answer_id": "PTRIP-222-001", "score": 0.5053368806838989, "sibling_score": 0.5053368806838989, "answer_score": 0.2754428625106811, "sibling_qid": "KOC-2023-03-1247-Q002", "sibling_text": "how preferential trip activated", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Preferential trip — purpose, working principle and activation", "cross_family": false }, { "answer_id": "PTRIP-222-002", "score": 0.49578869342803955, "sibling_score": 0.49578869342803955, "answer_score": 0.2755574896931648, "sibling_qid": "KOC-2022-02-1171-Q006", "sibling_text": "explain preferential trip how many in mob", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Stages, load-shedding sequence, settings, time delays and loads shed", "cross_family": false } ] }, { "qid": "KOL-2024-08-2727-Q005", "text": "ICCP full and cross ?", "family": "Electrical - ICCP & Cathodic Protection", "subtopic": "ICCP", "tid": "KOL-2024-08-2727", "tray": "review", "candidates": [ { "answer_id": "ICCP-119-P01-001", "score": 0.6893499493598938, "sibling_score": 0.6893499493598938, "answer_score": 0.32743937373161314, "sibling_qid": "CHE-2026-09-3910-Q002", "sibling_text": "iccp and cross", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP — purpose, principle and basic working", "cross_family": false }, { "answer_id": "PSC-SURV-P01-002", "score": 0.5781490802764893, "sibling_score": 0.5781490802764893, "answer_score": null, "sibling_qid": "KOL-2022-03-0612-Q003", "sibling_text": "cci full and cross then external asked", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is a Concentrated Inspection Campaign (CIC) under PSC?", "cross_family": true }, { "answer_id": "ICCP-119-P01-002", "score": 0.5723788738250732, "sibling_score": 0.5723788738250732, "answer_score": 0.3369771152734756, "sibling_qid": "MUM-2026-06-3487-Q011", "sibling_text": "iccp in detail", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP circuit / control arrangement, construction and main components", "cross_family": false } ] }, { "qid": "KOL-2024-08-2729-Q006", "text": "how many diodes used for single phase circuit & how many for three phase rectification ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Zener / Diode / Rectifier", "tid": "KOL-2024-08-2729", "tray": "review", "candidates": [ { "answer_id": "XFMR-THY-G-005", "score": 0.6839426159858704, "sibling_score": 0.6839426159858704, "answer_score": 0.4778553664684296, "sibling_qid": "KOL-2019-08-2315-Q003", "sibling_text": "1 three phase transformer or 3 single phase transformer", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "5. Single-phase, three-phase, ship and shore transformers", "cross_family": false }, { "answer_id": "EPC-P01-05", "score": 0.6420021653175354, "sibling_score": 0.6420021653175354, "answer_score": 0.4980425179004669, "sibling_qid": "KOL-2025-08-2826-Q008", "sibling_text": "3 phase rectifier", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Three-phase bridge rectifier — construction, working and why it is used", "cross_family": false }, { "answer_id": "SCR-306-A-001", "score": 0.6406834721565247, "sibling_score": 0.6406834721565247, "answer_score": null, "sibling_qid": "MUM-2025-07-1561-Q006", "sibling_text": "6 thyristor working", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What an SCR is and how it works", "cross_family": false } ] }, { "qid": "KOL-2024-08-2729-Q007", "text": "Steering gear motor protections?", "family": "Steering Gear & Hydraulics", "subtopic": "Steering Gear Motor", "tid": "KOL-2024-08-2729", "tray": "review", "candidates": [ { "answer_id": "STEER-055-A-002", "score": 0.7430650591850281, "sibling_score": 0.7430650591850281, "answer_score": null, "sibling_qid": "MUM-2024-12-1480-Q006", "sibling_text": "safieties of steering gear motor", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Steering gear motor and power unit", "cross_family": false }, { "answer_id": "SG-055-B-003", "score": 0.7391372919082642, "sibling_score": 0.7391372919082642, "answer_score": null, "sibling_qid": "KOC-2026-03-0877-Q007", "sibling_text": "steering gear motor 100 redundency fail safe", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Redundancy and the single-failure requirement (50% / 100%)", "cross_family": false }, { "answer_id": "STG-055-C-002", "score": 0.7356298565864563, "sibling_score": 0.7356298565864563, "answer_score": null, "sibling_qid": "KOL-2025-12-2929-Q005", "sibling_text": "steering gear motor regulations", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "SOLAS steering-gear requirements, tests and drills", "cross_family": false } ] }, { "qid": "KOL-2024-08-3705-Q001", "text": "Accumulator in AC", "family": "Refrigeration & AC", "subtopic": "Suction / Discharge Line", "tid": "KOL-2024-08-3705", "tray": "new", "candidates": [ { "answer_id": "REF-CYC-002", "score": 0.6055850386619568, "sibling_score": 0.6055850386619568, "answer_score": null, "sibling_qid": "KOL-2026-05-4096-Q001", "sibling_text": "accumulator in refer working system", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "2. Refrigeration plant components and their control functions", "cross_family": false }, { "answer_id": "ALPHA-LUB-B-003", "score": 0.5554248094558716, "sibling_score": 0.5554248094558716, "answer_score": null, "sibling_qid": "KOL-2016-08-1228-Q002", "sibling_text": "alpha lubricator inputs outputs accumulator", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Alpha lubricator — components, accumulator, solenoids and pressures", "cross_family": true }, { "answer_id": "REF-CYC-007", "score": 0.5444568395614624, "sibling_score": 0.5444568395614624, "answer_score": null, "sibling_qid": "MUM-2026-04-2687-Q004", "sibling_text": "refer and ac", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "7. COP and improving refrigeration efficiency", "cross_family": false } ] }, { "qid": "KOL-2024-08-3705-Q004", "text": "Holding down bolts tightening procedure , MAN 5. Srinivasan", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Holding Down Bolts", "tid": "KOL-2024-08-3705", "tray": "review", "candidates": [ { "answer_id": "TBR-TT-P02-001", "score": 0.6954805254936218, "sibling_score": 0.6954805254936218, "answer_score": null, "sibling_qid": "CHE-2026-05-0641-Q012", "sibling_text": "holding down bolts checks and tightening", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Tie rod tightening / hydraulic tensioning procedure", "cross_family": false }, { "answer_id": "TBR-TT-P02-002", "score": 0.6862736344337463, "sibling_score": 0.6862736344337463, "answer_score": null, "sibling_qid": "MUM-2026-02-2549-Q006", "sibling_text": "holding down bolts tightness check", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Checking tie rod tightness / slackness — stopped and running", "cross_family": false }, { "answer_id": "FB-COUP-001", "score": 0.6714285612106323, "sibling_score": 0.6714285612106323, "answer_score": null, "sibling_qid": "MUM-2026-07-3674-Q004", "sibling_text": "fitted bolts procedure for fitting", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What fitted bolts are, what they do, and where they sit onboard", "cross_family": false } ] }, { "qid": "KOL-2024-09-0861-Q007", "text": "MLC Annexures", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOL-2024-09-0861", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-006", "score": 0.5271391868591309, "sibling_score": 0.5271391868591309, "answer_score": 0.3202967196702957, "sibling_qid": "MUM-2026-06-3656-Q002", "sibling_text": "certificates under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false }, { "answer_id": "AVI-SCOPE-004", "score": 0.5102297067642212, "sibling_score": 0.5102297067642212, "answer_score": null, "sibling_qid": "MUM-2026-09-3879-Q001", "sibling_text": "annexes", "sibling_family": "MARPOL - General", "via": "sibling", "answer_title": "Explain MARPOL Annex VI: purpose, scope, chapters/regulations and main onboard requirements.", "cross_family": true }, { "answer_id": "MLC-WRH-B-001", "score": 0.5061483979225159, "sibling_score": 0.5061483979225159, "answer_score": 0.39233021438121796, "sibling_qid": "KOC-2026-05-2135-Q011", "sibling_text": "mlc titles explain title 1 explain dmlc part 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false } ] }, { "qid": "KOL-2024-09-0863-Q003", "text": "MLC. Fairwages. CBA", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOL-2024-09-0863", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-010", "score": 0.584263801574707, "sibling_score": 0.584263801574707, "answer_score": 0.29312919080257416, "sibling_qid": "MUM-2025-11-0573-Q004", "sibling_text": "how are wages set under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "SEA, the CBA parties, and how wages are set — action on non-payment", "cross_family": false }, { "answer_id": "MLC-WRH-B-002", "score": 0.4926575720310211, "sibling_score": 0.4926575720310211, "answer_score": null, "sibling_qid": "MUM-2022-07-0027-Q005", "sibling_text": "mlc 2006 wages rest hours", "sibling_family": "MLC", "via": "sibling", "answer_title": "Work and rest hours under MLC — the criteria, the weekly limit, the intervals", "cross_family": false }, { "answer_id": "MLC-WRH-B-011", "score": 0.4195743203163147, "sibling_score": 0.4195743203163147, "answer_score": null, "sibling_qid": "CHE-2026-05-0637-Q002", "sibling_text": "mlc grievance system", "sibling_family": "MLC", "via": "sibling", "answer_title": "The on-board complaint and grievance procedure", "cross_family": false } ] }, { "qid": "KOL-2024-09-0865-Q001", "text": "Ships sailed.", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2024-09-0865", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.7938832640647888, "sibling_score": 0.7938832640647888, "answer_score": null, "sibling_qid": "MUM-2026-04-1320-Q002", "sibling_text": "ship sailed on", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.6883538365364075, "sibling_score": 0.6883538365364075, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "INCL-EXP-B-002", "score": 0.4152798682451248, "sibling_score": null, "answer_score": 0.4152798682451248, "sibling_qid": "", "sibling_text": "b2 when and for which ships the experiment is carried out completion baseline every passenger ship regardless of size every cargo ship of length l 24 m and upwards the completion result determines lightship displacement and the longitudinal transverse and vertical position of the centre of gravity", "sibling_family": "", "via": "answer_title", "answer_title": "B2. When and for which ships the experiment is carried out", "cross_family": false } ] }, { "qid": "KOL-2024-09-1786-Q003", "text": "Dual gauge working principle", "family": "Gauges & Tools", "subtopic": "Pressure Gauge Calibration", "tid": "KOL-2024-09-1786", "tray": "new", "candidates": [ { "answer_id": "CPP-TCV-05", "score": 0.44225484132766724, "sibling_score": 0.44225484132766724, "answer_score": null, "sibling_qid": "MUM-2026-07-3702-Q003", "sibling_text": "dual cycle", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Otto, Diesel and dual cycles", "cross_family": true }, { "answer_id": "GEN-LSI-B-001", "score": 0.4337821900844574, "sibling_score": 0.4337821900844574, "answer_score": null, "sibling_qid": "KOL-2019-05-2292-Q004", "sibling_text": "d kw same pf and current diff for 2 dgs running in parallel reason", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01. Two alternators in parallel — same kW but different current and power factor: cause and correction", "cross_family": true }, { "answer_id": "IACS-324-007", "score": 0.4286130666732788, "sibling_score": 0.4286130666732788, "answer_score": null, "sibling_qid": "KOC-2024-01-0282-Q004", "sibling_text": "double class and dual class", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "7. What is double class or dual class?", "cross_family": true } ] }, { "qid": "KOL-2024-09-1951-Q004", "text": "Crankshaft related (didnot understand)", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft Material", "tid": "KOL-2024-09-1951", "tray": "review", "candidates": [ { "answer_id": "CRK-DEFL-006", "score": 0.7638350129127502, "sibling_score": 0.7638350129127502, "answer_score": null, "sibling_qid": "KOL-2017-07-1852-Q006", "sibling_text": "grounding and affect in crankshaft", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Checks after grounding, refloating or heavy weather", "cross_family": false }, { "answer_id": "CRANK-217-001", "score": 0.7495467066764832, "sibling_score": 0.7495467066764832, "answer_score": 0.5445373803377151, "sibling_qid": "MUM-2026-01-1240-Q003", "sibling_text": "crankshaft type explain semi built", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankshaft types and how the type is identified", "cross_family": false }, { "answer_id": "CRK-DEFL-001", "score": 0.740098774433136, "sibling_score": 0.740098774433136, "answer_score": null, "sibling_qid": "CHE-2026-05-0644-Q006", "sibling_text": "parts of crankshaft explain what stresses are acting on each part of crankshaft and why", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Purpose, timing and scope of crankshaft deflection", "cross_family": false } ] }, { "qid": "KOL-2024-09-2734-Q002", "text": "Advantages of using star- Delta starter?", "family": "", "subtopic": "", "tid": "KOL-2024-09-2734", "tray": "review", "candidates": [ { "answer_id": "SDST-A-001", "score": 0.7692022323608398, "sibling_score": 0.7692022323608398, "answer_score": 0.5508737683296203, "sibling_qid": "KOC-2025-03-1504-Q004", "sibling_text": "star delta starter advantages", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false }, { "answer_id": "SOFTSTART-P03-001", "score": 0.7258003950119019, "sibling_score": 0.7258003950119019, "answer_score": 0.5379728019237519, "sibling_qid": "KOC-2025-05-0596-Q014", "sibling_text": "advantages of star delta over soft starters", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Star-delta starter versus soft starter", "cross_family": false }, { "answer_id": "STARTER-DEC-B-001", "score": 0.5378304868936539, "sibling_score": null, "answer_score": 0.5378304868936539, "sibling_qid": "", "sibling_text": "selecting the right starter for a motor the real driver isstarting current versus the permissible switchboard voltage dip not motor size in isolation second driver thedriven load s starting torque demand reduced voltage starting also reduces torque to about one third for star delta", "sibling_family": "", "via": "answer_title", "answer_title": "Selecting the right starter for a motor", "cross_family": false } ] }, { "qid": "KOL-2024-09-2734-Q002S2", "text": "How starting current is reduced?", "family": "", "subtopic": "", "tid": "KOL-2024-09-2734", "tray": "review", "candidates": [ { "answer_id": "SDST-A-001", "score": 0.6615214943885803, "sibling_score": 0.6615214943885803, "answer_score": null, "sibling_qid": "CHE-2026-09-3921-Q011", "sibling_text": "start delta starter how starting current reduced", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false }, { "answer_id": "STARTER-DEC-B-002", "score": 0.639582633972168, "sibling_score": 0.639582633972168, "answer_score": 0.48536771535873413, "sibling_qid": "MUM-2025-05-1522-Q003", "sibling_text": "how we reduce starting current", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Why a starter is needed & reducing starting current", "cross_family": false }, { "answer_id": "STR-DEC-A-001", "score": 0.6032892465591431, "sibling_score": 0.6032892465591431, "answer_score": null, "sibling_qid": "KOC-2024-10-1408-Q006", "sibling_text": "types of starters purpose of starters reduce starting current how dol reduces starting current", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false } ] }, { "qid": "KOL-2024-09-2734-Q002S3", "text": "Zener diode working? Zener voltage? Where Zener diode is used on board?. How reverse breakdown voltage can be selected for different range of Zener diode", "family": "", "subtopic": "", "tid": "KOL-2024-09-2734", "tray": "review", "candidates": [ { "answer_id": "EPC-P02-01", "score": 0.6826406121253967, "sibling_score": 0.6826406121253967, "answer_score": 0.557321161031723, "sibling_qid": "KOL-2019-10-2334-Q002", "sibling_text": "zener diode what is semiconductor reverse breakdown voltage zener diode uses can it be used as normal diode on fwd biasing", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a zener diode? Draw its symbol, explain its working principle, and draw and explain its characteristic curve including the zener (breakdown) voltage.", "cross_family": false }, { "answer_id": "EPC-P02-03", "score": 0.6637648344039917, "sibling_score": 0.6637648344039917, "answer_score": 0.5735425412654876, "sibling_qid": "KOL-2019-09-2324-Q001", "sibling_text": "zener diode characteristics what is zener potential inverse breakdown voltage difference between avalanche and zener diodes where are zener diodes used explain applications on board", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Where is a zener diode used on board and why — voltage regulator, AVR, clipper — and explain one application in detail.", "cross_family": false }, { "answer_id": "EPC-P02-04", "score": 0.6327176690101624, "sibling_score": 0.6327176690101624, "answer_score": null, "sibling_qid": "KOL-2025-07-2818-Q006", "sibling_text": "zener diode zener breakdown avalanche breakdown", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is avalanche breakdown, how does it differ from zener breakdown, and in which diodes does each occur?", "cross_family": false } ] }, { "qid": "KOL-2024-09-2734-Q002S4", "text": "Safeties provided on MSB? Why reverse power trip is provided ?construction?", "family": "", "subtopic": "", "tid": "KOL-2024-09-2734", "tray": "new", "candidates": [ { "answer_id": "RPT-C-001", "score": 0.6476939916610718, "sibling_score": 0.6476939916610718, "answer_score": 0.4909063994884491, "sibling_qid": "KOL-2023-05-2656-Q003", "sibling_text": "msb safety purpose of reverse power trip how it operate lots of cross questions", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Reverse power in the paralleling picture — where it sits among the alternator safeties", "cross_family": false }, { "answer_id": "MSB-ESB-E-001", "score": 0.6473925709724426, "sibling_score": 0.6473925709724426, "answer_score": 0.5205887854099274, "sibling_qid": "KOC-2021-07-1139-Q002", "sibling_text": "msb safeties i just mentioned name of all safeties one by one then he asked about reverse power trips its setting and working", "sibling_family": "", "via": "sibling", "answer_title": "What safeties, protection trips, relays and alarms are provided on the MSB / ESB, and how are they tested?", "cross_family": false }, { "answer_id": "RPT-B-001", "score": 0.6061471700668335, "sibling_score": 0.6061471700668335, "answer_score": null, "sibling_qid": "KOL-2024-02-2694-Q005", "sibling_text": "construction of reverse power trip", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Construction & directional working — coils and the aluminium disc", "cross_family": false } ] }, { "qid": "KOL-2024-09-2734-Q002S5", "text": "What would cause alternator to loose power?", "family": "", "subtopic": "", "tid": "KOL-2024-09-2734", "tray": "review", "candidates": [ { "answer_id": "NO-VOLT-001", "score": 0.7323107123374939, "sibling_score": 0.7323107123374939, "answer_score": null, "sibling_qid": "KOL-2026-08-4162-Q011", "sibling_text": "no voltage in alternator cause", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "The 3/E reports the generator has started but no voltage is showing — reasons, and your actions as 2/E", "cross_family": false }, { "answer_id": "AVR-EXC-A-001", "score": 0.7322914600372314, "sibling_score": 0.7322914600372314, "answer_score": null, "sibling_qid": "KOL-2026-05-0084-Q003", "sibling_text": "no voltage in alternator cause", "sibling_family": "", "via": "sibling", "answer_title": "What is the purpose and function of the AVR?", "cross_family": false }, { "answer_id": "RES-MAG-002", "score": 0.7232191562652588, "sibling_score": 0.7232191562652588, "answer_score": null, "sibling_qid": "MUM-2026-06-3511-Q010", "sibling_text": "alternator not picking voltage", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Generator started but no voltage developing — reasons, and your action as Second Engineer", "cross_family": false } ] }, { "qid": "KOL-2024-09-3706-Q001", "text": "Liner reconditioning ME how it is carried out.", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "KOL-2024-09-3706", "tray": "new", "candidates": [ { "answer_id": "CYL-LINER-P03-003", "score": 0.5956284999847412, "sibling_score": 0.5956284999847412, "answer_score": null, "sibling_qid": "KOL-2022-05-3536-Q003", "sibling_text": "liner renewal procedure special checks tools if liner stuck then what to do", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Removing a stuck cylinder liner — how, and where do you jack?", "cross_family": false }, { "answer_id": "CYL-LINER-P03-007", "score": 0.5900066494941711, "sibling_score": 0.5900066494941711, "answer_score": null, "sibling_qid": "KOL-2018-12-3202-Q002", "sibling_text": "how will you recondition a liner whose clearance is exceeded", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Cylinder liner checks at overhaul, decarb and under-piston inspection", "cross_family": false }, { "answer_id": "CYL-LINER-P03-006", "score": 0.5607767701148987, "sibling_score": 0.5607767701148987, "answer_score": 0.3918176472187042, "sibling_qid": "MUM-2022-11-2155-Q006", "sibling_text": "how to fit and precautions taken for liner renewal material of liner", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Fitting a new cylinder liner — checks and precautions during renewal and installation", "cross_family": false } ] }, { "qid": "KOL-2024-09-3709-Q003", "text": "piston slip", "family": "2-Stroke - Components (Other)", "subtopic": "Piston (Crown/Skirt/Inspection)", "tid": "KOL-2024-09-3709", "tray": "new", "candidates": [ { "answer_id": "PIST-CSI-B-001", "score": 0.6495493054389954, "sibling_score": 0.6495493054389954, "answer_score": null, "sibling_qid": "KOL-2017-03-3040-Q006", "sibling_text": "why piston pull", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Main-engine piston — construction and the checks expected", "cross_family": false }, { "answer_id": "PIST-CSI-C-004", "score": 0.6472698450088501, "sibling_score": 0.6472698450088501, "answer_score": null, "sibling_qid": "KOL-2021-06-3409-Q001", "sibling_text": "piston seize", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston seizure, stuck piston and emergency running to port", "cross_family": false }, { "answer_id": "PST-CSI-BF-007", "score": 0.6450596451759338, "sibling_score": 0.6450596451759338, "answer_score": null, "sibling_qid": "MUM-2026-03-2951-Q007", "sibling_text": "checks on piston", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "The piston is out — what checks do you carry out on it?", "cross_family": false } ] }, { "qid": "KOL-2024-09-3710-Q003", "text": "What is D/4, D/12,D/16 for safety valve.", "family": "Boilers - Safety & Survey", "subtopic": "D/12 D/4 Settings", "tid": "KOL-2024-09-3710", "tray": "new", "candidates": [ { "answer_id": "ACRV-005", "score": 0.5031366944313049, "sibling_score": 0.5031366944313049, "answer_score": 0.34898310303688046, "sibling_qid": "MUM-2025-11-1220-Q003", "sibling_text": "relief valve and safety valve diff blowdown", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": false }, { "answer_id": "MR-DS-PV-B-006", "score": 0.49163931608200073, "sibling_score": 0.49163931608200073, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q005", "sibling_text": "full bore safety valve diagram", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "6. Deck isolating valve, deck relief/safety devices, and cargo-tank pressure", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.49139323830604553, "sibling_score": 0.49139323830604553, "answer_score": null, "sibling_qid": "KOC-2026-05-2142-Q007", "sibling_text": "full bore safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOL-2024-09-3711-Q001", "text": "Q1- is AE rocker arm lubrication and how lubrication done with same oil. After lubrication of rocker arm is the same oil goining to sump - yes (he was like r u sure. Yes. He said no)", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE Tappet", "tid": "KOL-2024-09-3711", "tray": "new", "candidates": [ { "answer_id": "CYL-LUB-B-002", "score": 0.5991286635398865, "sibling_score": 0.5991286635398865, "answer_score": 0.4749441146850586, "sibling_qid": "KOC-2026-03-1119-Q011", "sibling_text": "can cylinder liner be lubricated with any oil what should be the properties of cylinder oil internal no question", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Cylinder oil — required properties; can any oil be used?", "cross_family": true }, { "answer_id": "AEDEC-291-003", "score": 0.5964288115501404, "sibling_score": 0.5964288115501404, "answer_score": null, "sibling_qid": "KOL-2024-01-4031-Q002", "sibling_text": "ae over hauling completed lube oil flow satisfactory no jkt water leaking what will u furter check", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "3. Pre-start checks after decarb / recommissioning", "cross_family": false }, { "answer_id": "AEDEC-291-004", "score": 0.5897483229637146, "sibling_score": 0.5897483229637146, "answer_score": null, "sibling_qid": "KOL-2020-10-1554-Q003", "sibling_text": "after a e overhauling before testing in load what critical things u will check lub oil properties of ae why this oil is different from me lub oil", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "4. Checks on no-load and before taking load", "cross_family": false } ] }, { "qid": "KOL-2024-09-3711-Q004", "text": "Q3- cross head lubrication. How guide lubrication takes place.( he was not accepting my ans regarding telescopic pipe. I took a pause and mantion in mc c engine there is telescopic pipe and explain the hole path for luboil. After liseting he told me in my whole tenure of shipping i was never interested to know about lubrication. I said sir same was there on my last vessel to and i never loose tempriment. And said that politely", "family": "2-Stroke - Components (Other)", "subtopic": "Piston Cooling / Telescopic Pipe", "tid": "KOL-2024-09-3711", "tray": "review", "candidates": [ { "answer_id": "XHD-BRG-B-007", "score": 0.7008016109466553, "sibling_score": 0.7008016109466553, "answer_score": 0.6085763067007065, "sibling_qid": "KOL-2021-10-1628-Q003", "sibling_text": "crosshead lubrication how pipelines arranged fr lubrication in main engine", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Guide and guide-shoe lubrication, and the oil path from sump to crosshead", "cross_family": true }, { "answer_id": "PC-TP-004", "score": 0.6981205344200134, "sibling_score": 0.6981205344200134, "answer_score": null, "sibling_qid": "KOL-2024-06-1946-Q003", "sibling_text": "asked about x hd bearing lubrication flow and about the telescopic pipe", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Role of the telescopic pipe in the crosshead / piston-cooling flow", "cross_family": false }, { "answer_id": "PC-TP-003", "score": 0.6895198225975037, "sibling_score": 0.6895198225975037, "answer_score": null, "sibling_qid": "KOC-2023-07-0925-Q009", "sibling_text": "how piston crown cooling taking place lube circuit from telescopic pipe where it return back", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston crown cooling oil circuit and where the oil returns", "cross_family": false } ] }, { "qid": "KOL-2024-09-3711-Q005", "text": "Q4- load line survey as 2/e. I asked him sir should i start from engine room, he said as u wish.. he was showed littlle happy after listening of emergency bilge suction valve. The he tell me to go up up and finally to deck. I told each and every point.", "family": "Surveys - Statutory", "subtopic": "Anniversary Survey", "tid": "KOL-2024-09-3711", "tray": "review", "candidates": [ { "answer_id": "LL-CONV-P04-002", "score": 0.7251083850860596, "sibling_score": 0.7251083850860596, "answer_score": null, "sibling_qid": "KOL-2018-01-0140-Q001", "sibling_text": "loadline survey preparations all points applicable to engine room", "sibling_family": "", "via": "sibling", "answer_title": "Load Line Convention, certificates, assigning authority and detention risk", "cross_family": false }, { "answer_id": "LLC-SURV-P01-001", "score": 0.7148470282554626, "sibling_score": 0.7148470282554626, "answer_score": 0.5824934422969817, "sibling_qid": "MUM-2026-01-0676-Q007", "sibling_text": "load line survey what you ll check as 2e in engine room", "sibling_family": "", "via": "sibling", "answer_title": "Load line survey preparation as Second Engineer: engine-room scope, machinery openings, tanks/vents, valves and overboard checks", "cross_family": false }, { "answer_id": "LL-CONV-P06-001", "score": 0.679787278175354, "sibling_score": 0.679787278175354, "answer_score": null, "sibling_qid": "KOL-2019-07-3967-Q002", "sibling_text": "loadline survey preparation full detail he want to listen mainly corrosion at weld for all opening and engine room openings prep mine is tanker so especially he said in tanker you should check function of one main thing i said pv valve then he said to draw how pv valve is connected to deck i made diagram he want to see mainlt stub piece corrosion while pv valve pipe pass through deck", "sibling_family": "", "via": "sibling", "answer_title": "LLC-P06-01 - Ship categories and freeboard differences: Type A, Type B and practical ship cases", "cross_family": false } ] }, { "qid": "KOL-2024-09-3711-Q009", "text": "Q1- how will u order nut and bolts. What will things u will mention as dimentions.", "family": "Workshop & Welding", "subtopic": "Nut-Bolt Loosening / Locking Arrangements", "tid": "KOL-2024-09-3711", "tray": "review", "candidates": [ { "answer_id": "WTGS-325-001", "score": 0.6974357962608337, "sibling_score": 0.6974357962608337, "answer_score": null, "sibling_qid": "MUM-2022-07-0028-Q007", "sibling_text": "how to order wire for motor how to order bearing what size spanner to order m10 nut what size for m24", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Taking over a ship with no tools — what to order, and how", "cross_family": false }, { "answer_id": "LATHE-TD-003", "score": 0.6757303476333618, "sibling_score": 0.6757303476333618, "answer_score": null, "sibling_qid": "KOC-2022-08-0973-Q007", "sibling_text": "bolt dimensions m13 1 75", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Thread cutting — lathe, taps & dies, TPI and tapping-drill size", "cross_family": false }, { "answer_id": "LATHE-TD-001", "score": 0.6136012673377991, "sibling_score": 0.6136012673377991, "answer_score": null, "sibling_qid": "KOL-2023-07-3623-Q007", "sibling_text": "name 5 tools you will order how to order specification for same internal asked difference between main bearing bottom end bearing clearance of m e how to take the same", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "The lathe — types, main parts, construction and shipboard use", "cross_family": false } ] }, { "qid": "KOL-2024-09-3713-Q004", "text": "Fuel pump zero setting", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Pump Overhaul", "tid": "KOL-2024-09-3713", "tray": "review", "candidates": [ { "answer_id": "FP-OVHL-005", "score": 0.8391222357749939, "sibling_score": 0.8391222357749939, "answer_score": 0.621385470032692, "sibling_qid": "KOL-2018-08-1410-Q003", "sibling_text": "zero setting of fuel pump", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel pump zero setting — what it is, why, and how to set it", "cross_family": false }, { "answer_id": "COS343-003", "score": 0.6135145723819733, "sibling_score": null, "answer_score": 0.6135145723819733, "sibling_qid": "", "sibling_text": "what is the zero fuel zero delivery setting of a fuel pump and how is it done zero delivery zero fuel setting the rack index position giving no fuel delivery purpose all pumps reach zero and begin delivery together clean common stop on the handle and even load sharing", "sibling_family": "", "via": "answer_title", "answer_title": "What is the zero-fuel / zero-delivery setting of a fuel pump, and how is it done?", "cross_family": false }, { "answer_id": "ASTERN-004", "score": 0.5145794838666916, "sibling_score": null, "answer_score": 0.5145794838666916, "sibling_qid": "", "sibling_text": "ensuring fuel injection stops after a stop command before the next astern movement stop fuel actuator lever to zero pump racks off delivery puncture spill valve opens on stop dumps the delivery to suction so no injection pressure builds even while the plunger moves", "sibling_family": "", "via": "answer_title", "answer_title": "Ensuring fuel injection stops after a stop command, before the next astern movement", "cross_family": false } ] }, { "qid": "KOL-2024-10-0873-Q005", "text": "Marpol annex 5 , what special for bulk carrier? With regulations", "family": "MARPOL - Annex V (Garbage)", "subtopic": "Garbage / Cargo Residue", "tid": "KOL-2024-10-0873", "tray": "review", "candidates": [ { "answer_id": "GRB-321-007", "score": 0.6745594143867493, "sibling_score": 0.6745594143867493, "answer_score": null, "sibling_qid": "MUM-2022-08-0031-Q004", "sibling_text": "marpol annex 5 in detail 5", "sibling_family": "MARPOL - Annex V (Garbage)", "via": "sibling", "answer_title": "MARPOL Annex V garbage regulations — overview", "cross_family": false }, { "answer_id": "A5-GARB-005", "score": 0.6714341044425964, "sibling_score": 0.6714341044425964, "answer_score": null, "sibling_qid": "MUM-2025-09-2842-Q004", "sibling_text": "annex 5 what s there only for bulk", "sibling_family": "MARPOL - Annex V (Garbage)", "via": "sibling", "answer_title": "Cargo residues and bulk-carrier garbage", "cross_family": false }, { "answer_id": "GARB-261-001", "score": 0.6495726704597473, "sibling_score": 0.6495726704597473, "answer_score": null, "sibling_qid": "KOL-2020-02-0391-Q002", "sibling_text": "marpol annex 5 full with new amendments", "sibling_family": "MARPOL - Annex V (Garbage)", "via": "sibling", "answer_title": "MARPOL Annex V — scope, definitions and the garbage categories", "cross_family": false } ] }, { "qid": "KOL-2024-10-0875-Q005", "text": "Contents of training manual.", "family": "SOLAS - LSA & Lifeboats", "subtopic": "LSA Code", "tid": "KOL-2024-10-0875", "tray": "review", "candidates": [ { "answer_id": "FIRE-P05-01", "score": 0.807368278503418, "sibling_score": 0.807368278503418, "answer_score": 0.4483757376670837, "sibling_qid": "KOL-2025-11-1129-Q001", "sibling_text": "training manual contents", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fire-safety training manual — SOLAS II-2 Reg 15 contents and location", "cross_family": true }, { "answer_id": "CHEM-PA-003", "score": 0.6195088624954224, "sibling_score": 0.6195088624954224, "answer_score": null, "sibling_qid": "KOC-2024-09-0415-Q004", "sibling_text": "contents of p a manual", "sibling_family": "MARPOL - Annex II (NLS)", "via": "sibling", "answer_title": "The Procedures & Arrangements (P&A) Manual", "cross_family": true }, { "answer_id": "PMS-392-005", "score": 0.43068084716796873, "sibling_score": null, "answer_score": 0.43068084716796873, "sibling_qid": "", "sibling_text": "contents of an operation and maintenance manual omm for maintenance planning omm the maker s manual primary authority for maintaining that item outranks any textbook for maker specific values typical contents general description technical data specification safety precautions operating instructions start stop normal emergency maintenance schedule intervals dismantling assembly and overhaul procedu", "sibling_family": "", "via": "answer_title", "answer_title": "Contents of an Operation and Maintenance Manual (OMM) for maintenance planning", "cross_family": false } ] }, { "qid": "KOL-2024-10-0875-Q006", "text": "Tile of MLC.", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOL-2024-10-0875", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-006", "score": 0.45156100392341614, "sibling_score": 0.45156100392341614, "answer_score": 0.22514442950487137, "sibling_qid": "MUM-2026-06-3656-Q002", "sibling_text": "certificates under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false }, { "answer_id": "MLC-WRH-B-007", "score": 0.4300989508628845, "sibling_score": 0.4300989508628845, "answer_score": null, "sibling_qid": "MUM-2026-01-0701-Q002", "sibling_text": "detainable deficiency of mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false }, { "answer_id": "ISMNC-002", "score": 0.4178655743598938, "sibling_score": 0.4178655743598938, "answer_score": null, "sibling_qid": "MUM-2026-01-0685-Q005", "sibling_text": "mlc mnc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a major non-conformity under the ISM Code? Give the definition and name some.", "cross_family": true } ] }, { "qid": "KOL-2024-10-0875-Q007", "text": "CBA between which party. Tri-party aggreement.", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOL-2024-10-0875", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-010", "score": 0.6444398164749146, "sibling_score": 0.6444398164749146, "answer_score": 0.321244490146637, "sibling_qid": "MUM-2025-11-0573-Q005", "sibling_text": "which parties are a part of cba", "sibling_family": "MLC", "via": "sibling", "answer_title": "SEA, the CBA parties, and how wages are set — action on non-payment", "cross_family": false }, { "answer_id": "CB-ACBVCBSF6-E-001", "score": 0.34889060258865356, "sibling_score": 0.34889060258865356, "answer_score": null, "sibling_qid": "KOL-2025-10-2891-Q004", "sibling_text": "mcb mccb acb", "sibling_family": "", "via": "sibling", "answer_title": "What are the common types of circuit breakers used onboard and where are ACB, MCB, MCCB, VCB and SF6 breakers applied?", "cross_family": false }, { "answer_id": "SCR-306-B-003", "score": 0.34457191824913025, "sibling_score": 0.34457191824913025, "answer_score": null, "sibling_qid": "KOC-2025-05-1529-Q008", "sibling_text": "triads internal", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "TRIAC and DIAC — construction, triggering and use", "cross_family": true } ] }, { "qid": "KOL-2024-10-0875-Q008", "text": "Name some unions of seafarers.", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOL-2024-10-0875", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-004", "score": 0.5775533318519592, "sibling_score": 0.5775533318519592, "answer_score": null, "sibling_qid": "MUM-2026-01-0664-Q004", "sibling_text": "young seafarers", "sibling_family": "MLC", "via": "sibling", "answer_title": "Young seafarers — minimum age, night work, and what the 2/E must ensure", "cross_family": false }, { "answer_id": "MRV-DCS-001", "score": 0.5149862766265869, "sibling_score": 0.5149862766265869, "answer_score": null, "sibling_qid": "KOL-2024-12-0895-Q003", "sibling_text": "eumrv and imo dcs", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is the difference between EU MRV and IMO DCS?", "cross_family": true }, { "answer_id": "STCW-MAN-002", "score": 0.5076547861099243, "sibling_score": 0.5076547861099243, "answer_score": null, "sibling_qid": "KOC-2024-11-0455-Q005", "sibling_text": "stcw", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Name the chapters of the STCW Convention and explain them.", "cross_family": true } ] }, { "qid": "KOL-2024-10-0875-Q009", "text": "Minimum age for working on ship", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOL-2024-10-0875", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-004", "score": 0.6963536143302917, "sibling_score": 0.6963536143302917, "answer_score": 0.5508392155170441, "sibling_qid": "KOL-2021-07-0526-Q006", "sibling_text": "4 mlc 2006 rest hours minimum age required to workonboard minimum age for night watch", "sibling_family": "MLC", "via": "sibling", "answer_title": "Young seafarers — minimum age, night work, and what the 2/E must ensure", "cross_family": false }, { "answer_id": "MLC-WRH-B-003", "score": 0.5146393775939941, "sibling_score": 0.5146393775939941, "answer_score": null, "sibling_qid": "KOC-2025-01-0506-Q003", "sibling_text": "stcw convention manila amendment rest hours requirements", "sibling_family": "MLC", "via": "sibling", "answer_title": "STCW versus MLC rest hours — the Manila amendments, and is a 6-2-2 split acceptable", "cross_family": false }, { "answer_id": "OWS-15PPM-007", "score": 0.5029520988464355, "sibling_score": 0.5029520988464355, "answer_score": null, "sibling_qid": "KOL-2022-12-0706-Q005", "sibling_text": "ows requirement of ships 10k dwt and above", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": true } ] }, { "qid": "KOL-2024-10-0875-Q011", "text": "ISM under which SOLAS chapter.", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOL-2024-10-0875", "tray": "review", "candidates": [ { "answer_id": "SOLAS-CH-007", "score": 0.7102845311164856, "sibling_score": 0.7102845311164856, "answer_score": 0.4017979383468628, "sibling_qid": "KOC-2023-03-0160-Q008", "sibling_text": "ism which solas chapter it comes under", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS Chapter IX - ISM Code and certificates", "cross_family": true }, { "answer_id": "SOLAS-XII-BC-002", "score": 0.6258410215377808, "sibling_score": 0.6258410215377808, "answer_score": null, "sibling_qid": "MUM-2025-06-0312-Q001", "sibling_text": "chapter 12 solas", "sibling_family": "SOLAS - General (HOLD)", "via": "sibling", "answer_title": "Explain SOLAS Chapter XII — the additional safety measures for bulk carriers", "cross_family": true }, { "answer_id": "SOLAS12-BC-B-002", "score": 0.6258410215377808, "sibling_score": 0.6258410215377808, "answer_score": null, "sibling_qid": "KOC-2026-09-2177-Q004", "sibling_text": "chapter 12 solas", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "SOLAS Chapter XII — the 14 regulations (list)", "cross_family": true } ] }, { "qid": "KOL-2024-10-0877-Q002", "text": "Prepare for settling tank survey", "family": "Fuel Oil System", "subtopic": "Service / Settling Tank", "tid": "KOL-2024-10-0877", "tray": "new", "candidates": [ { "answer_id": "BTKS-573-001", "score": 0.6079599261283875, "sibling_score": 0.6079599261283875, "answer_score": 0.4060933798551559, "sibling_qid": "MUM-2025-04-0243-Q003", "sibling_text": "hfo bunter tank survey preparations", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "How will you prepare a fuel-oil / bunker tank for survey, inspection or hot work?", "cross_family": true }, { "answer_id": "FO-SVCSET-001", "score": 0.5728999972343445, "sibling_score": 0.5728999972343445, "answer_score": null, "sibling_qid": "KOL-2021-11-3476-Q004", "sibling_text": "settling tank function", "sibling_family": "Fuel Oil System", "via": "sibling", "answer_title": "What is the function of a fuel oil settling tank?", "cross_family": false }, { "answer_id": "LLC-SURV-P02-001", "score": 0.5565732717514038, "sibling_score": 0.5565732717514038, "answer_score": null, "sibling_qid": "KOL-2019-12-0357-Q003", "sibling_text": "ll survey preparation", "sibling_family": "", "via": "sibling", "answer_title": "1. Load line survey preparation: readiness, weather-tight checks and attendance", "cross_family": false } ] }, { "qid": "KOL-2024-10-1953-Q004", "text": "Types of boiler safety valve, difference between improved high lift and full lift safety valve", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2024-10-1953", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.7805081009864807, "sibling_score": 0.7805081009864807, "answer_score": null, "sibling_qid": "KOL-2026-01-2037-Q003", "sibling_text": "boiler safety valve types full bore and improved high lift and their ratio how will you adjust the lift", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "BLR-STM-PR-B54-003", "score": 0.49060484766960144, "sibling_score": null, "answer_score": 0.49060484766960144, "sibling_qid": "", "sibling_text": "the boiler high pressure cut out has operated what makes it cut out what it is an independent burner shut off on pressure a protective device not part of the modulating control order of set points working pressure control band high pressure alarm high pressure cut out safety valve set pressure then the class accumulation limit above that", "sibling_family": "", "via": "answer_title", "answer_title": "The boiler high-pressure cut-out has operated — what makes it cut out", "cross_family": false }, { "answer_id": "ECON-EGB-004", "score": 0.4816183805465698, "sibling_score": null, "answer_score": 0.4816183805465698, "sibling_qid": "", "sibling_text": "safety valve setting after overhaul why set higher than the boiler setting raise pressure under steam on a calibrated gauge adjust spring compression to lift at the approved set pressure verify re seat and blowdown two valves one at a time the other gagged lock and seal surveyor witnessed values are class approved ship specific set pressure accumulation representative limit and blowdown quote the ", "sibling_family": "", "via": "answer_title", "answer_title": "Safety-valve setting after overhaul & why set higher than the boiler", "cross_family": false } ] }, { "qid": "KOL-2024-10-2739-Q003", "text": "Exi, exia, exib, Zener diode ?", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOL-2024-10-2739", "tray": "review", "candidates": [ { "answer_id": "EPC-P02-01", "score": 0.6738826632499695, "sibling_score": 0.6738826632499695, "answer_score": 0.5198669761419296, "sibling_qid": "MUM-2026-05-3171-Q004", "sibling_text": "ex i a b and c no of zener diodes", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a zener diode? Draw its symbol, explain its working principle, and draw and explain its characteristic curve including the zener (breakdown) voltage.", "cross_family": false }, { "answer_id": "EPC-P02-03", "score": 0.6011782884597778, "sibling_score": 0.6011782884597778, "answer_score": 0.49245205521583557, "sibling_qid": "KOL-2018-03-2184-Q002", "sibling_text": "zener diode where it is used diagram n explain", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Where is a zener diode used on board and why — voltage regulator, AVR, clipper — and explain one application in detail.", "cross_family": false }, { "answer_id": "EPC-P01-02", "score": 0.593513548374176, "sibling_score": 0.593513548374176, "answer_score": 0.4534073770046234, "sibling_qid": "KOC-2023-11-1299-Q003", "sibling_text": "types of diod explaine zener diod", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Types of diodes, and where diodes are used on board", "cross_family": false } ] }, { "qid": "KOL-2024-10-2740-Q003", "text": "ICCP details ?", "family": "Electrical - ICCP & Cathodic Protection", "subtopic": "ICCP", "tid": "KOL-2024-10-2740", "tray": "review", "candidates": [ { "answer_id": "ICCP-119-P01-002", "score": 0.7500070929527283, "sibling_score": 0.7500070929527283, "answer_score": 0.3849285155534744, "sibling_qid": "MUM-2026-03-2070-Q002", "sibling_text": "iccp details", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP circuit / control arrangement, construction and main components", "cross_family": false }, { "answer_id": "ICCP-119-P01-001", "score": 0.7195802927017212, "sibling_score": 0.7195802927017212, "answer_score": 0.4144702583551407, "sibling_qid": "KOL-2026-07-4276-Q008", "sibling_text": "iccp in details", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP — purpose, principle and basic working", "cross_family": false }, { "answer_id": "ICCP-119-P01-003", "score": 0.3522282809019089, "sibling_score": null, "answer_score": 0.3522282809019089, "sibling_qid": "", "sibling_text": "iccp values impressed current meaning anode cathode roles and materials", "sibling_family": "", "via": "answer_title", "answer_title": "ICCP values, impressed-current meaning, anode/cathode roles and materials", "cross_family": false } ] }, { "qid": "KOL-2024-10-2742-Q008", "text": "What is residual magnetism?", "family": "Electrical - Generator & Alternator", "subtopic": "Residual Magnetism / Flashing", "tid": "KOL-2024-10-2742", "tray": "review", "candidates": [ { "answer_id": "RES-MAG-001", "score": 0.7231432795524597, "sibling_score": 0.7231432795524597, "answer_score": 0.4811310440301895, "sibling_qid": "KOC-2026-04-0911-Q002", "sibling_text": "residual magnetism", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Residual magnetism — what it is, where it is stored, how it is lost and how you restore it", "cross_family": false }, { "answer_id": "AR-263-001", "score": 0.30203074514865874, "sibling_score": null, "answer_score": 0.30203074514865874, "sibling_qid": "", "sibling_text": "what is armature reaction and where is it found armature mmf from load current acting on the main field mmf no load current no reaction with brushes on neutral the dc machine effect is mainly cross magnetizing pole tip saturation still gives a small net flux weakening a true demagnetizing component comes in only when the brushes are shifted off neutral", "sibling_family": "", "via": "answer_title", "answer_title": "What is armature reaction, and where is it found?", "cross_family": false }, { "answer_id": "PROX-SW-002", "score": 0.29888030886650085, "sibling_score": null, "answer_score": 0.29888030886650085, "sibling_qid": "", "sibling_text": "magnetic pickup sensor how it works passive self generating coil on a permanent magnet needs no external excitation supply faces a rotating ferrous toothed wheel flywheel ring gear phonic tone wheel", "sibling_family": "", "via": "answer_title", "answer_title": "Magnetic pickup sensor — how it works", "cross_family": false } ] }, { "qid": "KOL-2024-10-2743-Q002", "text": "Brushless excitation system it's components ?", "family": "Electrical - Generator & Alternator", "subtopic": "Brushless Alternator", "tid": "KOL-2024-10-2743", "tray": "review", "candidates": [ { "answer_id": "BRUSHALT-A-001", "score": 0.8197848200798035, "sibling_score": 0.8197848200798035, "answer_score": 0.5871361345052719, "sibling_qid": "MUM-2026-09-3931-Q003", "sibling_text": "brushless excitation system location of each part and construction", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01 · Working principle of the brushless alternator / brushless excitation systemHigh", "cross_family": false }, { "answer_id": "AVR-EXC-G-002", "score": 0.5952764123678207, "sibling_score": null, "answer_score": 0.5952764123678207, "sibling_qid": "", "sibling_text": "brushless excitation how dc reaches the rotor avr senses terminal voltage and sets the dc to the stationary exciter field the exciter is inverted field stationary armature rotating on the shaft", "sibling_family": "", "via": "answer_title", "answer_title": "Brushless excitation: how DC reaches the rotor", "cross_family": false }, { "answer_id": "AVR-EXC-G-001", "score": 0.5559953361749649, "sibling_score": null, "answer_score": 0.5559953361749649, "sibling_qid": "", "sibling_text": "what excitation is and the types used onboard excitation dc field current that magnetises the rotor no excitation no output voltage three families self excited shunt static avr fed separately excited excitation from an independent source and brushless rotating exciter rotating rectifier no main field brushes", "sibling_family": "", "via": "answer_title", "answer_title": "What excitation is, and the types used onboard", "cross_family": false } ] }, { "qid": "KOL-2024-10-3714-Q003", "text": "Refer oil charge", "family": "Refrigeration & AC", "subtopic": "Compressor / Leakage / Maintenance", "tid": "KOL-2024-10-3714", "tray": "review", "candidates": [ { "answer_id": "REEF-COMP-004", "score": 0.769278347492218, "sibling_score": 0.769278347492218, "answer_score": 0.42250708043575286, "sibling_qid": "MUM-2026-06-3494-Q007", "sibling_text": "oil charging in refer", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Charging, replenishing and draining compressor lube oil — including with no charging pump", "cross_family": false }, { "answer_id": "REEF-COMP-003", "score": 0.6363036036491394, "sibling_score": 0.6363036036491394, "answer_score": null, "sibling_qid": "MUM-2026-09-3997-Q011", "sibling_text": "refer oil properties", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Refrigeration-compressor lube oil — properties, selection, and its jobs beyond lubrication", "cross_family": false }, { "answer_id": "REEF-CHG-001", "score": 0.6263282895088196, "sibling_score": 0.6263282895088196, "answer_score": null, "sibling_qid": "CHE-2026-02-0471-Q001", "sibling_text": "how to charge gas in refer", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "01Charging or replenishing the refrigerant in a refrigeration / AC plant", "cross_family": false } ] }, { "qid": "KOL-2024-10-3714-Q004", "text": "Safety valve survey", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2024-10-3714", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P01-001", "score": 0.7086238861083984, "sibling_score": 0.7086238861083984, "answer_score": null, "sibling_qid": "KOC-2026-09-2205-Q019", "sibling_text": "setting safety valve infront of surveyor", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.6274126768112183, "sibling_score": 0.6274126768112183, "answer_score": null, "sibling_qid": "KOL-2021-08-1614-Q006", "sibling_text": "boiler survey interval types of safety valves improved high lift safety valve in detail", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-003", "score": 0.6209491491317749, "sibling_score": 0.6209491491317749, "answer_score": 0.47208793461322784, "sibling_qid": "MUM-2023-08-2191-Q004", "sibling_text": "safety valve accumulation pr test", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "The accumulation test and the safety valve — required lift, how lift and capacity are verified, and why accumulation must stay inside the limit", "cross_family": false } ] }, { "qid": "KOL-2024-10-3715-Q002", "text": "Tests on welded joints ? Tel about destructive tests ?", "family": "Workshop & Welding", "subtopic": "Welding / NDT / Heat Treatment", "tid": "KOL-2024-10-3715", "tray": "review", "candidates": [ { "answer_id": "PW-327-006", "score": 0.7488390207290649, "sibling_score": 0.7488390207290649, "answer_score": 0.5081911146640777, "sibling_qid": "KOL-2026-03-3927-Q001", "sibling_text": "welding tests ndt and destructive test when you are performing destructive tests you are destroying the work piece so what you do in destructive test to not destroy the workpiece", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "6. Weld defects, undercut, and weld testing (vacuum box, hose, NDT)", "cross_family": false }, { "answer_id": "WELD-DEF-002", "score": 0.6617937684059143, "sibling_score": 0.6617937684059143, "answer_score": 0.47396934032440186, "sibling_qid": "KOL-2020-03-3338-Q003", "sibling_text": "welding defects and types of test carried out on welding in details", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Tests and NDT to detect weld defects", "cross_family": false }, { "answer_id": "NDT-METH-P03-002", "score": 0.6216140389442444, "sibling_score": 0.6216140389442444, "answer_score": null, "sibling_qid": "MUM-2025-07-2337-Q007", "sibling_text": "after welding what all test can be done to check welding area", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Component crack testing — weld, hull plate, tailshaft, crankshaft, piston, serrations", "cross_family": true } ] }, { "qid": "KOL-2024-10-3717-Q001", "text": "Sequential starting", "family": "Electrical - Generator & Alternator", "subtopic": "Black Out Test / Recovery", "tid": "KOL-2024-10-3717", "tray": "review", "candidates": [ { "answer_id": "PTRIP-BO-003", "score": 0.8764795660972595, "sibling_score": 0.8764795660972595, "answer_score": 0.41389170140028, "sibling_qid": "MUM-2026-05-3348-Q004", "sibling_text": "sequential starting", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Sequential starting after a blackout — what starts first, and why?", "cross_family": false }, { "answer_id": "SYN-ASY-B-001", "score": 0.6695771217346191, "sibling_score": 0.6695771217346191, "answer_score": null, "sibling_qid": "KOL-2025-08-2839-Q002", "sibling_text": "starting procedure of synchronous", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Why a synchronous motor is not self-starting, and starting methods", "cross_family": false }, { "answer_id": "EMCY-DG-P03-004", "score": 0.5950685143470764, "sibling_score": 0.5950685143470764, "answer_score": null, "sibling_qid": "KOL-2025-09-2854-Q001", "sibling_text": "sequential starting after black out breaker will reset automatically or manually", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Blackout sequence — starting the set and taking load back", "cross_family": false } ] }, { "qid": "KOL-2024-10-3720-Q006", "text": "Blind spot hammering.", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Bedplate / A-Frame", "tid": "KOL-2024-10-3720", "tray": "new", "candidates": [ { "answer_id": "CRKPIN-P02-002", "score": 0.4010445773601532, "sibling_score": 0.4010445773601532, "answer_score": null, "sibling_qid": "KOL-2017-09-3096-Q004", "sibling_text": "crank pin bearing bottom bearing black spot causes n precaution", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankpin bearing clearance — measurement and interpretation", "cross_family": false }, { "answer_id": "PPS-230-004", "score": 0.3789060115814209, "sibling_score": 0.3789060115814209, "answer_score": 0.26556063145399095, "sibling_qid": "CHE-2026-05-0626-Q009", "sibling_text": "what is pounding and how it is strengthened", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Forward strengthening to resist pounding / slamming", "cross_family": true }, { "answer_id": "CRK-DEFL-001", "score": 0.3760364055633545, "sibling_score": 0.3760364055633545, "answer_score": null, "sibling_qid": "KOC-2026-03-2008-Q011", "sibling_text": "which part could bend or broke first some more questions i forgot internal no questions", "sibling_family": "2-Stroke - 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What is IACS and what are its functions?", "cross_family": false } ] }, { "qid": "KOL-2024-11-0884-Q008", "text": "WHAT TYPE OF SHIPS YOU SAILED", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2024-11-0884", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.7524188160896301, "sibling_score": 0.7524188160896301, "answer_score": null, "sibling_qid": "MUM-2026-02-1272-Q002", "sibling_text": "type of ships sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7359368801116943, "sibling_score": 0.7359368801116943, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.4589730143547058, "sibling_score": null, "answer_score": 0.4589730143547058, "sibling_qid": "", "sibling_text": "type a and type b ships how form and cargo set the freeboard", "sibling_family": "", "via": "answer_title", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "KOL-2024-11-0885-Q002", "text": "How to find BM, by which experiment 4 SOLAS chapter 2 in detail", "family": "SOLAS", "subtopic": "Damage Stability", "tid": "KOL-2024-11-0885", "tray": "new", "candidates": [ { "answer_id": "INCL-EXP-D-001", "score": 0.5234559178352356, "sibling_score": 0.5234559178352356, "answer_score": null, "sibling_qid": "KOL-2020-06-0414-Q002", "sibling_text": "2 inclination experiment complete in details and calculation of bm", "sibling_family": "", "via": "sibling", "answer_title": "Finding GM — then KG and the centre of gravity", "cross_family": false }, { "answer_id": "RES-PROP-P02-001", "score": 0.3729155957698822, "sibling_score": 0.3729155957698822, "answer_score": null, "sibling_qid": "KOL-2022-08-0674-Q001", "sibling_text": "towing experiment how it s carried out in detail what values are found using this experiment", "sibling_family": "", "via": "sibling", "answer_title": "Ship model and towing tests — purpose, scaling and resistance prediction", "cross_family": false }, { "answer_id": "HYD-BONJ-001", "score": 0.3613758683204651, "sibling_score": 0.3613758683204651, "answer_score": null, "sibling_qid": "KOL-2024-01-0802-Q004", "sibling_text": "how do you get bm how do you get hydrostatic curve", "sibling_family": "", "via": "sibling", "answer_title": "Hydrostatic curves — what they give and how they are used", "cross_family": false } ] }, { "qid": "KOL-2024-11-0886-Q009", "text": "What is high voltage system and which circuit breaker is used in high voltage system", "family": "", "subtopic": "Circuit Breakers (ACB / VCB / SF6)", "tid": "KOL-2024-11-0886", "tray": "review", "candidates": [ { "answer_id": "CBKR-H-001", "score": 0.7005336284637451, "sibling_score": 0.7005336284637451, "answer_score": 0.575991940498352, "sibling_qid": "KOL-2022-03-2543-Q001", "sibling_text": "circuit breaker in hv system", "sibling_family": "", "via": "sibling", "answer_title": "How do VCB and SF6 breakers work in a high-voltage system, and why are they used instead of an ACB?", "cross_family": false }, { "answer_id": "CB-ACBVCB-B-001", "score": 0.6978751420974731, "sibling_score": 0.6978751420974731, "answer_score": null, "sibling_qid": "KOL-2020-01-2366-Q004", "sibling_text": "type of breakers explain what type of breaker use in high voltage system system high voltage safeties", "sibling_family": "", "via": "sibling", "answer_title": "ACB/main circuit breaker safeties, trips, settings and testing", "cross_family": false }, { "answer_id": "CB-ACBVCBSF6-E-001", "score": 0.6975060701370239, "sibling_score": 0.6975060701370239, "answer_score": 0.469646692276001, "sibling_qid": "KOC-2026-02-1703-Q011", "sibling_text": "hv system breakers used", "sibling_family": "", "via": "sibling", "answer_title": "What are the common types of circuit breakers used onboard and where are ACB, MCB, MCCB, VCB and SF6 breakers applied?", "cross_family": false } ] }, { "qid": "KOL-2024-11-0886-Q013", "text": "What are the trips in other motors", "family": "Electrical - Protection & Relays", "subtopic": "Protection / Relays", "tid": "KOL-2024-11-0886", "tray": "new", "candidates": [ { "answer_id": "OC-UV-TRIP-006", "score": 0.6221473813056946, "sibling_score": 0.6221473813056946, "answer_score": null, "sibling_qid": "MUM-2022-07-1333-Q003", "sibling_text": "various trips for alternator", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Trip settings and combined overcurrent / undervoltage protection — alternator context", "cross_family": false }, { "answer_id": "OS-TRIP-001", "score": 0.5750454664230347, "sibling_score": 0.5750454664230347, "answer_score": null, "sibling_qid": "MUM-2025-08-1597-Q005", "sibling_text": "overspeed trip overcurrent relay trip", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "01. What is an overspeed trip / overspeed relay, and what is its purpose?", "cross_family": false }, { "answer_id": "SGM-ELEC-001", "score": 0.5550137162208557, "sibling_score": 0.5550137162208557, "answer_score": null, "sibling_qid": "MUM-2024-12-1475-Q005", "sibling_text": "steering gear motor trip after telling short circuit trip i told all alarms and trips", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What are the safeties, alarms and trips on the steering gear motor as per SOLAS — and how do you activate the safematic?", "cross_family": true } ] }, { "qid": "KOL-2024-11-0887-Q002", "text": "Types of ships sailed", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2024-11-0887", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8160868287086487, "sibling_score": 0.8160868287086487, "answer_score": null, "sibling_qid": "CHE-2026-09-3938-Q001", "sibling_text": "types of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7793357968330383, "sibling_score": 0.7793357968330383, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7763980031013489, "sibling_score": 0.7763980031013489, "answer_score": 0.5090847253799439, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "KOL-2024-11-0889-Q003", "text": "ISM CODE, stake holders name.", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOL-2024-11-0889", "tray": "new", "candidates": [ { "answer_id": "ISM-ELEM-002", "score": 0.5845087766647339, "sibling_score": 0.5845087766647339, "answer_score": null, "sibling_qid": "KOC-2026-03-0867-Q003", "sibling_text": "ism codes name", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the ISM Code?", "cross_family": false }, { "answer_id": "ISM-DPA-002", "score": 0.5773486495018005, "sibling_score": 0.5773486495018005, "answer_score": null, "sibling_qid": "KOC-2023-03-0172-Q004", "sibling_text": "ism who is responsible for ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "DPA basis : which convention, which code, and who is responsible for ISM", "cross_family": false }, { "answer_id": "ISM-SMC-B-002", "score": 0.5492767691612244, "sibling_score": 0.5492767691612244, "answer_score": null, "sibling_qid": "KOC-2024-10-0426-Q006", "sibling_text": "ism code interim smc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Interim SMC — occasions, procedure and validity", "cross_family": false } ] }, { "qid": "KOL-2024-11-0889-Q004", "text": "DMLC ,part 1. Details.", "family": "MLC", "subtopic": "MLC / DMLC / Work-Rest", "tid": "KOL-2024-11-0889", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.6080029010772705, "sibling_score": 0.6080029010772705, "answer_score": 0.34448837488889694, "sibling_qid": "KOC-2025-08-2071-Q013", "sibling_text": "dmlc part 1 and part", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "MLC-WRH-B-007", "score": 0.22478605806827545, "sibling_score": null, "answer_score": 0.22478605806827545, "sibling_qid": "", "sibling_text": "mlc detainable deficiencies there is no convention list of detainable deficiencies appendix a5 iii lists the 16 areas open to a more detailed inspection in a port state appendix a5 i is the same 16 for flag certification the 16 areas minimum age medical certification qualifications of seafarers seafarers employment agreements use of any licensed or certified or regulated private recruitment and pl", "sibling_family": "", "via": "answer_title", "answer_title": "MLC detainable deficiencies", "cross_family": false }, { "answer_id": "ISM-ELEM-003", "score": 0.22339421808719634, "sibling_score": null, "answer_score": 0.22339421808719634, "sibling_qid": "", "sibling_text": "elements chapters structure of the ism code part a implementation the 12 elements 1 general 1 1 definitions 1 2 objectives 1 3 application 1 4 functional requirements for an sms", "sibling_family": "", "via": "answer_title", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": false } ] }, { "qid": "KOL-2024-11-0890-Q001", "text": "Type of ship?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2024-11-0890", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8367663025856018, "sibling_score": 0.8367663025856018, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8020406365394592, "sibling_score": 0.8020406365394592, "answer_score": 0.5474629700183868, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8004519939422607, "sibling_score": 0.8004519939422607, "answer_score": 0.5221094131469727, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "KOL-2024-11-1789-Q002", "text": "Type of ship and engine worked on", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "KOL-2024-11-1789", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P01-001", "score": 0.7905205488204956, "sibling_score": 0.7905205488204956, "answer_score": null, "sibling_qid": "CHE-2026-02-0243-Q001", "sibling_text": "type of ship and type of main engine you worked", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7554971575737, "sibling_score": 0.7554971575737, "answer_score": null, "sibling_qid": "MUM-2025-08-2357-Q001", "sibling_text": "type of ship type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "BED-CHOCK-001", "score": 0.4521641343832016, "sibling_score": null, "answer_score": 0.4521641343832016, "sibling_qid": "", "sibling_text": "how is the main engine bedplate fixed to the ship s structure bedplate lands on the engine seating longitudinal girders off the double bottom never bare shell plating chocks fill the gap between bedplate feet and seating epoxy resin now standard cast iron on older ships", "sibling_family": "", "via": "answer_title", "answer_title": "How is the main-engine bedplate fixed to the ship's structure?", "cross_family": false } ] }, { "qid": "KOL-2024-11-1789-Q007", "text": "fwg performance drop what will you do/ how to circulate chemical", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "KOL-2024-11-1789", "tray": "new", "candidates": [ { "answer_id": "HULL-PAINT-001", "score": 0.5096591711044312, "sibling_score": 0.5096591711044312, "answer_score": null, "sibling_qid": "MUM-2026-05-3247-Q009", "sibling_text": "fwg chemical cleaning if no chemical is available what you can use", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Preparing the hull surface before painting in dry dock — cleanliness standard and methods", "cross_family": false }, { "answer_id": "DCP-B-001", "score": 0.488057941198349, "sibling_score": 0.488057941198349, "answer_score": null, "sibling_qid": "CHE-2025-08-0017-Q002", "sibling_text": "fixed dcp chemical and it s maintenance", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fixed DCP system — maintenance, agitation, sampling and survey preparation", "cross_family": true }, { "answer_id": "FWG-RO-003", "score": 0.4816192090511322, "sibling_score": 0.4816192090511322, "answer_score": 0.39021033346652984, "sibling_qid": "CHE-2026-03-0495-Q003", "sibling_text": "fwg reason for reduced production and parameters", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "The FWG is not producing enough water or its efficiency has dropped. Reasons, checks and action?", "cross_family": false } ] }, { "qid": "KOL-2024-11-1789-Q012", "text": "refer gas charging Both pass Thank you all for help Happy Diwali All■■", "family": "Refrigeration & AC", "subtopic": "Reefer Charging", "tid": "KOL-2024-11-1789", "tray": "review", "candidates": [ { "answer_id": "REEF-CHG-001", "score": 0.6800304055213928, "sibling_score": 0.6800304055213928, "answer_score": null, "sibling_qid": "CHE-2026-02-0471-Q001", "sibling_text": "how to charge gas in refer", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "01Charging or replenishing the refrigerant in a refrigeration / AC plant", "cross_family": false }, { "answer_id": "REEF-CHG-002", "score": 0.676626980304718, "sibling_score": 0.676626980304718, "answer_score": null, "sibling_qid": "KOL-2019-02-3209-Q002", "sibling_text": "refer charging both process liquid gas", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "02Where and how gas and liquid refrigerant are charged into the system", "cross_family": false }, { "answer_id": "REEF-CHG-004", "score": 0.6030818819999695, "sibling_score": 0.6030818819999695, "answer_score": null, "sibling_qid": "MUM-2026-03-2651-Q003", "sibling_text": "gas charge from dryer in refer", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "04Where refrigerant is charged, and purging the charging line without releasing refrigerant", "cross_family": false } ] }, { "qid": "KOL-2024-11-1790-Q002", "text": "Sulzer and man b&w liner construction difference", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "KOL-2024-11-1790", "tray": "new", "candidates": [ { "answer_id": "FCL-P03-003", "score": 0.5867085456848145, "sibling_score": 0.5867085456848145, "answer_score": null, "sibling_qid": "MUM-2026-06-3357-Q002", "sibling_text": "sulzer man bw fuel pumps construction and operational difference", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Sulzer / RTA fuel pump timing and lead", "cross_family": false }, { "answer_id": "CXH-BRG-FINAL-1-005", "score": 0.5332931280136108, "sibling_score": 0.5332931280136108, "answer_score": null, "sibling_qid": "KOL-2018-10-1426-Q002", "sibling_text": "cross head lubrication diffrence between sulzer and man b w", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead lubrication: why it is uniquely difficult, MAN vs Sulzer, improvements", "cross_family": true }, { "answer_id": "XHD-BRG-B-006", "score": 0.5269615650177002, "sibling_score": 0.5269615650177002, "answer_score": 0.46845264434814454, "sibling_qid": "KOL-2022-02-1662-Q004", "sibling_text": "crosshead bearing material type of lubrication difference between man sulzer", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "MAN B&W versus Sulzer / Wärtsilä crosshead bearing and lubrication", "cross_family": true } ] }, { "qid": "KOL-2024-11-1791-Q003", "text": "how 4 strokes con rod bolt is different from 2 strokes.", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Decarb Checks / Connecting Rod / Bottom End Bearing", "tid": "KOL-2024-11-1791", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.6505280137062073, "sibling_score": 0.6505280137062073, "answer_score": null, "sibling_qid": "MUM-2025-11-1211-Q002", "sibling_text": "why 4 stroke engine connecting rod bolts are prone to failure what happens in case of 2 stroke engine", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "CRB-004", "score": 0.6174597144126892, "sibling_score": 0.6174597144126892, "answer_score": 0.5291716635227203, "sibling_qid": "CHE-2026-04-0257-Q014", "sibling_text": "in 4 stroke engine connecting rod bolts become crack what reasons this not happened in 2 stroke engine", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Why do bottom-end bearing bolts fail or crack more in a 4-stroke engine than in a 2-stroke engine?", "cross_family": true }, { "answer_id": "AEME-DIFF-003", "score": 0.6142738461494446, "sibling_score": 0.6142738461494446, "answer_score": 0.5075170814990997, "sibling_qid": "MUM-2026-09-3982-Q006", "sibling_text": "diff between 2stroke and 4 stroke engine in component wise", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Two-stroke versus four-stroke engine in the ME/AE context", "cross_family": false } ] }, { "qid": "KOL-2024-11-1957-Q006", "text": "Reverse osmosis operation , what is osmotic pressure , where do you find onboard , which ship reverse osmosis is there ? Did you see any time onbaord ? He said you said only upar upar se", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "KOL-2024-11-1957", "tray": "new", "candidates": [ { "answer_id": "FWG-RO-006", "score": 0.6086118221282959, "sibling_score": 0.6086118221282959, "answer_score": 0.5783821135759354, "sibling_qid": "MUM-2023-06-2736-Q001S4", "sibling_text": "reverse osmosis principle and flow chart explanation", "sibling_family": "Fresh Water & Domestic Systems", "via": "sibling", "answer_title": "Explain reverse osmosis — the principle and flow, pre- and post-treatment, and what chemical is dosed before the RO.", "cross_family": true }, { "answer_id": "RVSG-213-001", "score": 0.549529492855072, "sibling_score": 0.549529492855072, "answer_score": null, "sibling_qid": "KOL-2022-10-1713-Q005", "sibling_text": "rotary vane system and vane material rao difference bw osmosis n reverse osmosis", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Construction, main parts, materials & vane fitment", "cross_family": true }, { "answer_id": "VOLT-SYS-003", "score": 0.48777318000793457, "sibling_score": 0.48777318000793457, "answer_score": null, "sibling_qid": "KOC-2026-03-0843-Q016", "sibling_text": "type of 3 ph systems onboard ships", "sibling_family": "Electrical - Distribution & MSB", "via": "sibling", "answer_title": "Three-phase three-wire versus four-wire, and why ships use three-wire", "cross_family": true } ] }, { "qid": "KOL-2024-11-2746-Q002", "text": "Diode & it's testing ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Zener / Diode / Rectifier", "tid": "KOL-2024-11-2746", "tray": "review", "candidates": [ { "answer_id": "EPC-P01-02", "score": 0.7209886908531189, "sibling_score": 0.7209886908531189, "answer_score": null, "sibling_qid": "CHE-2026-05-0627-Q008", "sibling_text": "diode testing", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Types of diodes, and where diodes are used on board", "cross_family": false }, { "answer_id": "TC-A-004", "score": 0.6398161053657532, "sibling_score": 0.6398161053657532, "answer_score": 0.5182023108005523, "sibling_qid": "KOC-2025-07-1544-Q003", "sibling_text": "transistor testing other than diode mode", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Testing a transistor — and testing it other than in diode mode", "cross_family": false }, { "answer_id": "EPC-P02-01", "score": 0.6319710612297058, "sibling_score": 0.6319710612297058, "answer_score": null, "sibling_qid": "KOL-2022-08-2593-Q004", "sibling_text": "what is zener diode how diode test onboard", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a zener diode? Draw its symbol, explain its working principle, and draw and explain its characteristic curve including the zener (breakdown) voltage.", "cross_family": false } ] }, { "qid": "KOL-2024-11-2746-Q004", "text": "Ex i( a ) & Ex i (b) ?", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOL-2024-11-2746", "tray": "new", "candidates": [ { "answer_id": "EXD-EXI-A-002", "score": 0.6369147300720215, "sibling_score": 0.6369147300720215, "answer_score": null, "sibling_qid": "KOC-2025-05-2064-Q007", "sibling_text": "ex i and exd", "sibling_family": "", "via": "sibling", "answer_title": "Ex d (flameproof / explosion-proof) — construction, shipboard applications and maintenance", "cross_family": false }, { "answer_id": "EXD-EXI-A-001", "score": 0.6228752732276917, "sibling_score": 0.6228752732276917, "answer_score": null, "sibling_qid": "KOL-2025-12-2942-Q001", "sibling_text": "ex d and ex i", "sibling_family": "", "via": "sibling", "answer_title": "Ex i (intrinsically safe) vs Ex d (flameproof / explosion-proof) — the difference", "cross_family": false }, { "answer_id": "HAZ-EX-B-001", "score": 0.6127707958221436, "sibling_score": 0.6127707958221436, "answer_score": null, "sibling_qid": "MUM-2026-03-2019-Q002", "sibling_text": "ex i and ex d", "sibling_family": "", "via": "sibling", "answer_title": "Intrinsically safe (Ex i) equipment — what it is, how it works, where it is used, how you identify it", "cross_family": false } ] }, { "qid": "KOL-2024-11-3721-Q005", "text": "what is milling machine?", "family": "Workshop & Welding", "subtopic": "Workshop Machine Tools", "tid": "KOL-2024-11-3721", "tray": "new", "candidates": [ { "answer_id": "LATHE-TD-001", "score": 0.6265813708305359, "sibling_score": 0.6265813708305359, "answer_score": 0.4165391713380813, "sibling_qid": "KOL-2022-01-3512-Q006", "sibling_text": "lathe machine operation", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "The lathe — types, main parts, construction and shipboard use", "cross_family": false }, { "answer_id": "LATHE-TD-004", "score": 0.5933168530464172, "sibling_score": 0.5933168530464172, "answer_score": 0.38098620176315307, "sibling_qid": "KOL-2016-08-2996-Q006", "sibling_text": "hand reamer machine reamer", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Reaming — purpose, use, and identifying reamers", "cross_family": false }, { "answer_id": "LATHE-TD-002", "score": 0.5693001747131348, "sibling_score": 0.5693001747131348, "answer_score": null, "sibling_qid": "MUM-2025-03-2273-Q021", "sibling_text": "tools used on lathe", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Lathe tools, tool setting, chucks and tailstock precautions", "cross_family": false } ] }, { "qid": "KOL-2024-11-3726-Q004", "text": "3rd engineer noticed generator giving abnormal noise , reported you what will be your action as 2e Tell properly as per management level, don't tell operational level things .", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE Hot / Blow Past", "tid": "KOL-2024-11-3726", "tray": "new", "candidates": [ { "answer_id": "AEDEC-291-003", "score": 0.6082040667533875, "sibling_score": 0.6082040667533875, "answer_score": null, "sibling_qid": "MUM-2024-11-1469-Q003", "sibling_text": "as a 2nd engg what you will check first if your genrator is not running from long time", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "3. Pre-start checks after decarb / recommissioning", "cross_family": false }, { "answer_id": "AE-HOT-BLOW-002", "score": 0.6038495898246765, "sibling_score": 0.6038495898246765, "answer_score": null, "sibling_qid": "MUM-2026-04-2685-Q003", "sibling_text": "during rounds chief engineer told ae blow past taking place how he knows", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "How you know blow-past is occurring in an auxiliary engine — indications and effects", "cross_family": false }, { "answer_id": "NO-VOLT-001", "score": 0.6024280786514282, "sibling_score": 0.6024280786514282, "answer_score": 0.4940363675355911, "sibling_qid": "MUM-2025-05-1501-Q002", "sibling_text": "3e started the generator voltage not coming actions as 2e", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "The 3/E reports the generator has started but no voltage is showing — reasons, and your actions as 2/E", "cross_family": true } ] }, { "qid": "KOL-2024-11-4042-Q004", "text": "speciality in improved high lift safety valve.", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2024-11-4042", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.8331059813499451, "sibling_score": 0.8331059813499451, "answer_score": null, "sibling_qid": "MUM-2026-06-3405-Q017", "sibling_text": "improved high lift safety valve details", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACSS-002", "score": 0.5011310935020447, "sibling_score": null, "answer_score": 0.5011310935020447, "sibling_qid": "", "sibling_text": "relief safety valves settings testing lifting reasons bursting disc set just above stage working pressure the class standard accumulation limit is about 10 though the exact set point is a maker sms value non isolable from its stage test to the maker s method easing gear or test rig for lifting pressure log and reset", "sibling_family": "", "via": "answer_title", "answer_title": "Relief / safety valves: settings, testing, lifting reasons; bursting disc", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-003", "score": 0.4902569383382797, "sibling_score": null, "answer_score": 0.4902569383382797, "sibling_qid": "", "sibling_text": "the accumulation test and the safety valve required lift how lift and capacity are verified and why accumulation must stay inside the limit popping test proves setting accumulation test proves installed relieving capacity not two versions of one test sizing the class discharge formula sizes the aggregate valve area from the maker s specified peak evaporation using a constant for the valve type", "sibling_family": "", "via": "answer_title", "answer_title": "The accumulation test and the safety valve — required lift, how lift and capacity are verified, and why accumulation must stay inside the limit", "cross_family": false } ] }, { "qid": "KOL-2024-12-0894-Q005", "text": "Continuos synopsis record , under which convention and regulation number", "family": "Surveys - Statutory", "subtopic": "CSR / Continuous Synopsis Record", "tid": "KOL-2024-12-0894", "tray": "review", "candidates": [ { "answer_id": "CSR-585-001", "score": 0.6998160481452942, "sibling_score": 0.6998160481452942, "answer_score": 0.46573249697685243, "sibling_qid": "KOC-2025-08-0646-Q001", "sibling_text": "continuous synopsis record", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the Continuous Synopsis Record (CSR)? Explain its purpose and requirements.", "cross_family": false }, { "answer_id": "IMO-CODES-P02-001", "score": 0.5015538930892944, "sibling_score": 0.5015538930892944, "answer_score": 0.3431583449244499, "sibling_qid": "KOC-2026-09-2216-Q002", "sibling_text": "convention regulation amendments", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "IMO instruments: convention, code, protocol, amendment, regulation, resolution and rule", "cross_family": true }, { "answer_id": "HSSC-001", "score": 0.4942125678062439, "sibling_score": 0.4942125678062439, "answer_score": null, "sibling_qid": "KOL-2018-06-0189-Q002", "sibling_text": "harmonised survey system what all conventions covered", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is HSSC — the Harmonised System of Survey and Certification? Explain the harmonised survey system and programme, and what the \"HSSC code\" is.", "cross_family": false } ] }, { "qid": "KOL-2024-12-0895-Q004", "text": "Latest ammendment to bunker sampling.", "family": "MARPOL - General & Compliance", "subtopic": "Marpol Sample / In-Use", "tid": "KOL-2024-12-0895", "tray": "new", "candidates": [ { "answer_id": "BUNK-SAMP-001", "score": 0.6064397692680359, "sibling_score": 0.6064397692680359, "answer_score": 0.41403718292713165, "sibling_qid": "KOL-2022-10-0693-Q005", "sibling_text": "bunker sample procedure", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Taking the bunker (MARPOL delivered) sample", "cross_family": false }, { "answer_id": "BUNK-SAMP-002", "score": 0.5363935828208923, "sibling_score": 0.5363935828208923, "answer_score": 0.3905714154243469, "sibling_qid": "KOL-2023-03-0722-Q004", "sibling_text": "annex 6 latest sampling procedure", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "The three MARPOL fuel-oil samples: delivered, in-use, onboard", "cross_family": false }, { "answer_id": "BUNK-SAMP-005", "score": 0.5277059078216553, "sibling_score": 0.5277059078216553, "answer_score": 0.38400817960500716, "sibling_qid": "KOL-2025-09-1030-Q006", "sibling_text": "bunker sample minimum no plus how many month s to keep onboard lab sample lost in the way what to do ship sample leaked too den what to do", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Number of samples, retention period, storage and lost or leaked samples", "cross_family": false } ] }, { "qid": "KOL-2024-12-0896-Q003", "text": "Classification society", "family": "Surveys - Statutory", "subtopic": "PSC / Flag / RO / CIC / MoU", "tid": "KOL-2024-12-0896", "tray": "review", "candidates": [ { "answer_id": "CSAS-SURV-001", "score": 0.7919569611549377, "sibling_score": 0.7919569611549377, "answer_score": 0.4239687860012054, "sibling_qid": "MUM-2023-03-0088-Q008", "sibling_text": "classification society", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Certificate of class — what it is, who issues it, what class looks after", "cross_family": true }, { "answer_id": "IACS-324-002", "score": 0.7564184069633484, "sibling_score": 0.7564184069633484, "answer_score": 0.43864805698394777, "sibling_qid": "CHE-2025-10-0065-Q006", "sibling_text": "what is classification society it s functions", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "2. What is a classification society, why does a ship need class, and what are its functions?", "cross_family": false }, { "answer_id": "IACS-324-008", "score": 0.720478355884552, "sibling_score": 0.720478355884552, "answer_score": null, "sibling_qid": "KOC-2025-09-0652-Q002", "sibling_text": "surveys under classification society", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "8. What surveys are carried out under a classification society?", "cross_family": false } ] }, { "qid": "KOL-2024-12-0900-Q004", "text": "Role of iacs", "family": "Surveys - Statutory", "subtopic": "PSC / Flag / RO / CIC / MoU", "tid": "KOL-2024-12-0900", "tray": "review", "candidates": [ { "answer_id": "IACS-324-001", "score": 0.6635115146636963, "sibling_score": 0.6635115146636963, "answer_score": 0.3694232448935509, "sibling_qid": "CHE-2026-05-0586-Q005", "sibling_text": "role of iacs", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "1. 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How pressure regulator valve is working?", "family": "Auxiliary Equipment", "subtopic": "VALVES", "tid": "KOL-2024-12-1794", "tray": "new", "candidates": [ { "answer_id": "QCV-002", "score": 0.5745550394058228, "sibling_score": 0.5745550394058228, "answer_score": null, "sibling_qid": "KOL-2024-09-3711-Q002", "sibling_text": "q2 quick closing safety valve operation from where compresserd air comes and activates", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Quick closing valve — operation, air activation and reset", "cross_family": false }, { "answer_id": "MAC-598-001", "score": 0.5591080188751221, "sibling_score": 0.5591080188751221, "answer_score": null, "sibling_qid": "KOC-2026-08-2161-Q009", "sibling_text": "air compressor valve", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "The main air compressor valve — arrangement, parts, and why the construction is so complex", "cross_family": true }, { "answer_id": "CO2-SYS-005", "score": 0.5536834001541138, "sibling_score": 0.5536834001541138, "answer_score": null, "sibling_qid": "KOC-2024-11-0461-Q010", "sibling_text": "co2 room relief valve pressure setting manifold pressure co2 bottle pressure lots of cross", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 system safeties, CO2-room requirements, alarms and ventilation", "cross_family": true } ] }, { "qid": "KOL-2024-12-1959-Q001", "text": "Type of engine worked", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOL-2024-12-1959", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.7851499319076538, "sibling_score": 0.7851499319076538, "answer_score": null, "sibling_qid": "KOL-2026-03-2048-Q001", "sibling_text": "type of engine done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "MCC-MEB-P01-001", "score": 0.7576585412025452, "sibling_score": 0.7576585412025452, "answer_score": null, "sibling_qid": "MUM-2026-09-3997-Q002", "sibling_text": "type of engine worked me mcc me b and rta", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "MC-C (\"Compact\") engine — design and the main constructional differences from MC", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.7337197661399841, "sibling_score": 0.7337197661399841, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false } ] }, { "qid": "KOL-2024-12-1959-Q006", "text": "Foaming and priming?", "family": "Boilers - Operations & Firing", "subtopic": "Scum / Blow Down", "tid": "KOL-2024-12-1959", "tray": "new", "candidates": [ { "answer_id": "FOAM-SYS-P06-002", "score": 0.5679450035095215, "sibling_score": 0.5679450035095215, "answer_score": null, "sibling_qid": "KOL-2018-03-0158-Q005", "sibling_text": "foam maintenance", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "2. 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why butterfly and not gate, and where they are positioned", "cross_family": true }, { "answer_id": "GV-330-001", "score": 0.570645809173584, "sibling_score": 0.570645809173584, "answer_score": null, "sibling_qid": "MUM-2026-07-3696-Q007", "sibling_text": "gate valve advantages", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Draw and explain the gate valve — construction, main parts, operation & onboard use", "cross_family": true }, { "answer_id": "EXHV-P01-002", "score": 0.527993381023407, "sibling_score": 0.527993381023407, "answer_score": null, "sibling_qid": "KOL-2018-06-1383-Q002", "sibling_text": "advantage of spring air in exhaust valve", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Air spring and soft closing", "cross_family": true } ] }, { "qid": "KOL-2024-12-1960-Q005", "text": "back pressure valve", "family": "Refrigeration & AC", "subtopic": "Back Pressure Valve", "tid": "KOL-2024-12-1960", "tray": "review", "candidates": [ { "answer_id": "BPV-315-001", "score": 0.8028875589370728, "sibling_score": 0.8028875589370728, "answer_score": 0.6147985488176345, "sibling_qid": "CHE-2026-05-0551-Q002", "sibling_text": "back pressure valve", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Back pressure valve — purpose, location and operation", "cross_family": false }, { "answer_id": "BPV-315-005", "score": 0.7718921303749084, "sibling_score": 0.7718921303749084, "answer_score": 0.5762073636054993, "sibling_qid": "KOL-2026-02-1830-Q004", "sibling_text": "ref equalizer line back pressure valve", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Equalising line and the back pressure valve", "cross_family": false }, { "answer_id": "BPV-315-006", "score": 0.5658143639564513, "sibling_score": null, "answer_score": 0.5658143639564513, "sibling_qid": "", "sibling_text": "where the back pressure valve fits in a provision plant sketch", "sibling_family": "", "via": "answer_title", "answer_title": "Where the back pressure valve fits in a provision plant (sketch)", "cross_family": false } ] }, { "qid": "KOL-2024-12-1961-Q002", "text": "Crosshead lubrication, pin and guide shoe lubrication", "family": "2-Stroke - Components (Other)", "subtopic": "Piston Cooling / Telescopic Pipe", "tid": "KOL-2024-12-1961", "tray": "review", "candidates": [ { "answer_id": "XHD-BRG-C-004", "score": 0.7203307747840881, "sibling_score": 0.7203307747840881, "answer_score": null, "sibling_qid": "KOL-2026-03-2045-Q003", "sibling_text": "crosshead bearing lubrication how guide shoes are getting lubricated", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "D. Crosshead and guide-shoe lubrication: oil path, the no-load-reversal film problem, MAN vs Sulzer", "cross_family": true }, { "answer_id": "XHD-BRG-B-007", "score": 0.7056992053985596, "sibling_score": 0.7056992053985596, "answer_score": 0.5653803765773773, "sibling_qid": "KOL-2023-09-1755-Q001", "sibling_text": "man bnw crosshead lubrication explain where lube oil should be delivered guide or shoe why lo not delivered in guide", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Guide and guide-shoe lubrication, and the oil path from sump to crosshead", "cross_family": true }, { "answer_id": "XHEAD-303-006", "score": 0.6795727014541626, "sibling_score": 0.6795727014541626, "answer_score": 0.5820172011852264, "sibling_qid": "MUM-2025-06-0976-Q005", "sibling_text": "crosshead lubrication and how oil is going to guide shoe", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead and guide-shoe lubrication, difficulties, telescopic pipe", "cross_family": true } ] }, { "qid": "KOL-2024-12-1961-Q005", "text": "Boiler swelling and shrinkage", "family": "Boilers - Operations & Firing", "subtopic": "Boiler Water Circulation", "tid": "KOL-2024-12-1961", "tray": "review", "candidates": [ { "answer_id": "DP-TX-006", "score": 0.8193925023078918, "sibling_score": 0.8193925023078918, "answer_score": 0.5785966247320175, "sibling_qid": "KOL-2025-08-2012-Q004", "sibling_text": "swell and shrink in boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler swell and shrink in relation to DP level measurement and control", "cross_family": false }, { "answer_id": "LWL-004", "score": 0.7598098516464233, "sibling_score": 0.7598098516464233, "answer_score": 0.5967826515436172, "sibling_qid": "KOL-2021-08-3446-Q003", "sibling_text": "what is swell and shrinkage how swell and shrinkage is nullified in boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "What are swell and shrinkage, and how are they nullified in the boiler?", "cross_family": false }, { "answer_id": "BLR-TUBE-P01-003", "score": 0.6770147085189819, "sibling_score": 0.6770147085189819, "answer_score": null, "sibling_qid": "KOL-2020-11-1557-Q002", "sibling_text": "small boiler tube expansion", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "02. Thermal expansion arrangements for boiler tubes", "cross_family": true } ] }, { "qid": "KOL-2024-12-2748-Q003", "text": "Requisition for ordering motor stating 440v 3ph, 950rpm…but chief engineer refused to accept the order. Reason?", "family": "Electrical - Motors & Starters", "subtopic": "Motor Specification / Ordering", "tid": "KOL-2024-12-2748", "tray": "new", "candidates": [ { "answer_id": "BRG-NOM-001", "score": 0.6438183188438416, "sibling_score": 0.6438183188438416, "answer_score": null, "sibling_qid": "MUM-2026-09-3980-Q011", "sibling_text": "specification of motor to order", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Bearing Numbers, Suffixes and What to State When Ordering", "cross_family": false }, { "answer_id": "IM-TSS-P01-004", "score": 0.5969327688217163, "sibling_score": 0.5969327688217163, "answer_score": null, "sibling_qid": "KOL-2026-09-4298-Q008", "sibling_text": "induction motor running at 900 but it can t run at 950 why", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Synchronous speed, poles and Ns = 120 f / P", "cross_family": false }, { "answer_id": "IMSP-001", "score": 0.5852048993110657, "sibling_score": 0.5852048993110657, "answer_score": null, "sibling_qid": "KOL-2026-04-2985-Q003", "sibling_text": "induction motor selection reasons", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Why does an induction motor draw a high initial current and how do you avoid the inrush? What is the effect of starting a large motor on one DG only? What causes an overcurrent trip?", "cross_family": false } ] }, { "qid": "KOL-2024-12-2749-Q004", "text": "what is fog horn and it's working principle ?", "family": "Auxiliary Equipment", "subtopic": "air horn", "tid": "KOL-2024-12-2749", "tray": "new", "candidates": [ { "answer_id": "HKC-IHM-A-001", "score": 0.49156472086906433, "sibling_score": 0.49156472086906433, "answer_score": null, "sibling_qid": "KOC-2024-12-0485-Q013", "sibling_text": "honking convention", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Hong Kong Convention — what it is and what it requires", "cross_family": true }, { "answer_id": "VENT-HD-004", "score": 0.49113625288009644, "sibling_score": 0.49113625288009644, "answer_score": null, "sibling_qid": "KOC-2025-12-1088-Q002", "sibling_text": "tank air vent working i explained ball type air vent", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Ball-float type tank air vent head — construction and working", "cross_family": false }, { "answer_id": "VENT-HD-003", "score": 0.4803471565246582, "sibling_score": 0.4803471565246582, "answer_score": null, "sibling_qid": "KOC-2024-01-0282-Q006", "sibling_text": "f o tank air vent diagram", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Fuel-oil / diesel-oil / bunker tank vent arrangements — draw and explain", "cross_family": false } ] }, { "qid": "KOL-2024-12-2754-Q003", "text": "Safeties provided inside an alternator, not about the MSB ?", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator Protection", "tid": "KOL-2024-12-2754", "tray": "review", "candidates": [ { "answer_id": "RPT-C-001", "score": 0.6658347249031067, "sibling_score": 0.6658347249031067, "answer_score": null, "sibling_qid": "KOL-2024-11-2744-Q002", "sibling_text": "safeties for alternator at msb why reverse power trip provided", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Reverse power in the paralleling picture — where it sits among the alternator safeties", "cross_family": false }, { "answer_id": "MSB-ESB-E-001", "score": 0.6655652523040771, "sibling_score": 0.6655652523040771, "answer_score": 0.45614211559295653, "sibling_qid": "KOC-2025-07-0633-Q035", "sibling_text": "safeties in msb", "sibling_family": "", "via": "sibling", "answer_title": "What safeties, protection trips, relays and alarms are provided on the MSB / ESB, and how are they tested?", "cross_family": false }, { "answer_id": "SYNC-C-002", "score": 0.6622432470321655, "sibling_score": 0.6622432470321655, "answer_score": null, "sibling_qid": "KOL-2018-01-2172-Q005", "sibling_text": "safeties provided in msb he wanted to here a specific safety related to paralleling of alternators provided in msb other than synchroscope synchro lamps", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Synchronising without a synchroscope — lamp, voltmeter and alternative methods", "cross_family": false } ] }, { "qid": "KOL-2024-12-2754-Q005", "text": "In automatic control system, Sensor used to sense the air flow and steam flow in a boiler combustion control ?", "family": "Boilers - Operations & Firing", "subtopic": "Air Fuel Ratio", "tid": "KOL-2024-12-2754", "tray": "review", "candidates": [ { "answer_id": "AFR-BF68-001", "score": 0.7495971918106079, "sibling_score": 0.7495971918106079, "answer_score": 0.5739061057567596, "sibling_qid": "KOL-2022-05-4009-Q004", "sibling_text": "how air fuel ratio control is done in boiler how air flow sensor work", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Air-fuel ratio control — and what increases first, air or fuel", "cross_family": false }, { "answer_id": "ACC-603-006", "score": 0.746357262134552, "sibling_score": 0.746357262134552, "answer_score": 0.5957471311092376, "sibling_qid": "KOL-2021-08-1616-Q002", "sibling_text": "method of steam flow measurement in automatic combustion control", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "How steam flow is measured for the automatic combustion control", "cross_family": false }, { "answer_id": "DP-TX-004", "score": 0.7433118224143982, "sibling_score": 0.7433118224143982, "answer_score": null, "sibling_qid": "KOC-2025-03-0570-Q004", "sibling_text": "boiler 3 element control system working of flow sensor dp transmitter", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Differential-pressure flowmeter — principle, types and square-root extraction", "cross_family": false } ] }, { "qid": "KOL-2024-12-3728-Q002", "text": "What major jobs have you done", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOL-2024-12-3728", "tray": "new", "candidates": [ { "answer_id": "ISM-2E-A-004", "score": 0.5863390564918518, "sibling_score": 0.5863390564918518, "answer_score": 0.2407868981361389, "sibling_qid": "KOC-2022-07-0966-Q018", "sibling_text": "major jobs carried out", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Shipboard jobs, machineries and maintenance areas under the Second Engineer", "cross_family": true }, { "answer_id": "DCB-OVH-008", "score": 0.5852893590927124, "sibling_score": 0.5852893590927124, "answer_score": 0.353694748878479, "sibling_qid": "KOC-2025-10-1946-Q012", "sibling_text": "major jobs carried out", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Major ME / AE overhaul jobs carried out onboard", "cross_family": true }, { "answer_id": "MAIN-BRG-D-004", "score": 0.5294407606124878, "sibling_score": 0.5294407606124878, "answer_score": null, "sibling_qid": "KOC-2024-04-2044-Q015", "sibling_text": "what major job u have done i said main bearing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main bearing overhaul — jack-up, clearance check and tightening", "cross_family": true } ] }, { "qid": "KOL-2024-12-3728-Q004", "text": "What was the bore diameter of your AE", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOL-2024-12-3728", "tray": "new", "candidates": [ { "answer_id": "BRG-NOM-001", "score": 0.47139430046081543, "sibling_score": 0.47139430046081543, "answer_score": 0.3330833375453949, "sibling_qid": "MUM-2023-12-2214-Q007", "sibling_text": "bore size for a 6204zzc3 type bearing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bearing Numbers, Suffixes and What to State When Ordering", "cross_family": true }, { "answer_id": "EGTP-P02-012", "score": 0.46172815561294556, "sibling_score": 0.46172815561294556, "answer_score": null, "sibling_qid": "KOC-2025-10-1948-Q004", "sibling_text": "value of s if 60bore dia", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Stroke, Bore Ratio and Super-Long Stroke", "cross_family": true }, { "answer_id": "AE-CSB-346-003", "score": 0.4463685154914856, "sibling_score": 0.4463685154914856, "answer_score": null, "sibling_qid": "CHE-2026-05-0615-Q004", "sibling_text": "main bearing clearance of ae", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Checking / measuring auxiliary-engine thrust-bearing clearance (end float)", "cross_family": true } ] }, { "qid": "KOL-2024-12-3728-Q007", "text": "How to set safety valve", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2024-12-3728", "tray": "review", "candidates": [ { "answer_id": "ECON-EGB-004", "score": 0.7184910178184509, "sibling_score": 0.7184910178184509, "answer_score": 0.5414754539728165, "sibling_qid": "CHE-2026-05-0601-Q010", "sibling_text": "safety valve setting procedure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Safety-valve setting after overhaul & why set higher than the boiler", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.7183333039283752, "sibling_score": 0.7183333039283752, "answer_score": null, "sibling_qid": "MUM-2026-02-1255-Q006", "sibling_text": "setting of safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.7059729695320129, "sibling_score": 0.7059729695320129, "answer_score": null, "sibling_qid": "MUM-2026-05-2994-Q003", "sibling_text": "how do you set the safety valve in front of surveyor", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false } ] }, { "qid": "KOL-2024-12-3728-Q008", "text": "During answering I said initially the valve is set at a higher pressure than the actual set pressure and then it is reduced slowly slowly", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2024-12-3728", "tray": "review", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-002", "score": 0.6790199279785156, "sibling_score": 0.6790199279785156, "answer_score": null, "sibling_qid": "KOL-2026-02-3922-Q005", "sibling_text": "what is lifting of safety valve tell only within 3 percent of designated set pressure nothing else", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Acceptance limits and durations — the accumulation limit, the maximum test periods, and the action if the limit is exceeded", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.6750208735466003, "sibling_score": 0.6750208735466003, "answer_score": null, "sibling_qid": "KOL-2026-02-3913-Q004", "sibling_text": "improved high lift safety valve pressure setting 3 above designated set pressure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.669501006603241, "sibling_score": 0.669501006603241, "answer_score": null, "sibling_qid": "MUM-2026-02-1255-Q006", "sibling_text": "setting of safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false } ] }, { "qid": "KOL-2024-12-3728-Q009", "text": "How to ensure the initial set pressure is higher than the actual one:- He wanted to listen that first we will measure the height above the compression nut before disassembly and then we will tighten more than previ", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2024-12-3728", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.664251983165741, "sibling_score": 0.664251983165741, "answer_score": null, "sibling_qid": "KOL-2026-02-3913-Q004", "sibling_text": "improved high lift safety valve pressure setting 3 above designated set pressure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "PRE-TEN-006", "score": 0.6468230485916138, "sibling_score": 0.6468230485916138, "answer_score": null, "sibling_qid": "CHE-2026-02-0484-Q005", "sibling_text": "ae cylinder head nut not opening in desired pressure how much will u increase even though increasing pressure what will you do", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Cylinder-head nut will not open at the specified hydraulic pressure", "cross_family": true }, { "answer_id": "HYD-JACK-002", "score": 0.6170192956924438, "sibling_score": 0.6170192956924438, "answer_score": null, "sibling_qid": "KOC-2025-11-1971-Q012", "sibling_text": "nut not loosen even applied required pressure what will u check first he need purging of air", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Hydraulic jack leaks, seizes, will not reach pressure, or nut will not loosen", "cross_family": true } ] }, { "qid": "KOL-2024-12-3730-Q005", "text": "One unit exhaust valve actuator is damaged..How will you run the engine and reach nearest port?", "family": "2-Stroke - Exhaust, Valve & Starting Air", "subtopic": "Exhaust Valve", "tid": "KOL-2024-12-3730", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.7499180436134338, "sibling_score": 0.7499180436134338, "answer_score": null, "sibling_qid": "KOL-2023-09-3638-Q003", "sibling_text": "exhast valve actuator damaged how to run engine", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "EXHV-297-002", "score": 0.694140613079071, "sibling_score": 0.694140613079071, "answer_score": null, "sibling_qid": "MUM-2023-06-2733-Q003", "sibling_text": "suppose actuater of exhaust valve is not working how will you run the engine", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Actuator parts, throttle/damper, air-spring failure & back-up", "cross_family": false }, { "answer_id": "EXHV-P03-002", "score": 0.6618812084197998, "sibling_score": 0.6618812084197998, "answer_score": null, "sibling_qid": "KOL-2025-06-3786-Q004", "sibling_text": "main engine in maneuvering one unit exh valve is leaking you are in er and with one assit eng what is your immediate action", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Leaking exhaust valve — indications, the draw card, and immediate action", "cross_family": false } ] }, { "qid": "KOL-2024-12-3731-Q004", "text": "Boiler safety valve adjustment procedure.", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2024-12-3731", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-001", "score": 0.8257055282592773, "sibling_score": 0.8257055282592773, "answer_score": null, "sibling_qid": "KOC-2026-05-0003-Q005", "sibling_text": "boiler safety valve setting procedure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.7881640195846558, "sibling_score": 0.7881640195846558, "answer_score": null, "sibling_qid": "MUM-2026-03-2935-Q013", "sibling_text": "boiler safety valve setting in presence of surveyor after survey", "sibling_family": "Boilers - 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1", "family": "ISPS", "subtopic": "SOLAS Ch.XI-2 Security", "tid": "KOL-2025-01-0908", "tray": "new", "candidates": [ { "answer_id": "SOLAS-CH-012", "score": 0.5705530643463135, "sibling_score": 0.5705530643463135, "answer_score": 0.27229939252138136, "sibling_qid": "MUM-2026-04-0917-Q002", "sibling_text": "solas chapter 11 1 11 2", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS XI-1, XI-2 and XIII - safety, security and audit", "cross_family": true }, { "answer_id": "SOLAS-XII-BC-002", "score": 0.5662052035331726, "sibling_score": 0.5662052035331726, "answer_score": null, "sibling_qid": "MUM-2026-03-2931-Q002", "sibling_text": "solas chap xi name and what are covered", "sibling_family": "SOLAS - General (HOLD)", "via": "sibling", "answer_title": "Explain SOLAS Chapter XII — the additional safety measures for bulk carriers", "cross_family": true }, { "answer_id": "SOLAS-CH-015", "score": 0.5476398468017578, "sibling_score": 0.5476398468017578, "answer_score": 0.29678725451231003, "sibling_qid": "MUM-2025-03-0242-Q006", "sibling_text": "solas chap 11", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS chapters overview - 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"sibling_text": "mlc 2006 wages rest hours", "sibling_family": "MLC", "via": "sibling", "answer_title": "Work and rest hours under MLC — the criteria, the weekly limit, the intervals", "cross_family": false }, { "answer_id": "MLC-WRH-B-011", "score": 0.39464351534843445, "sibling_score": 0.39464351534843445, "answer_score": null, "sibling_qid": "CHE-2026-05-0637-Q002", "sibling_text": "mlc grievance system", "sibling_family": "MLC", "via": "sibling", "answer_title": "The on-board complaint and grievance procedure", "cross_family": false } ] }, { "qid": "KOL-2025-01-0910-Q001", "text": "Types of ship sailed?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2025-01-0910", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8298171162605286, "sibling_score": 0.8298171162605286, "answer_score": null, "sibling_qid": "CHE-2026-09-3938-Q001", "sibling_text": "types of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7976129651069641, "sibling_score": 0.7976129651069641, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7832740545272827, "sibling_score": 0.7832740545272827, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "KOL-2025-01-0910-Q002", "text": "Number of ships done?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2025-01-0910", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.664422333240509, "sibling_score": 0.664422333240509, "answer_score": null, "sibling_qid": "MUM-2026-02-1280-Q001", "sibling_text": "type of ship done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.5853167176246643, "sibling_score": 0.5853167176246643, "answer_score": null, "sibling_qid": "CHE-2026-05-0614-Q001", "sibling_text": "start from type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "SOLAS12-BC-A-001", "score": 0.5819640755653381, "sibling_score": 0.5819640755653381, "answer_score": null, "sibling_qid": "MUM-2026-04-2958-Q001", "sibling_text": "ship done bulk carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "SOLAS definition and scope of a bulk carrier", "cross_family": false } ] }, { "qid": "KOL-2025-01-0910-Q008", "text": "What is financial security in MLC?", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOL-2025-01-0910", "tray": "new", "candidates": [ { "answer_id": "CLC-CIV-A-004", "score": 0.550220251083374, "sibling_score": 0.550220251083374, "answer_score": 0.28731504678726194, "sibling_qid": "MUM-2026-07-3757-Q004", "sibling_text": "certificate of financial security as per mlc", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "CLC certificate, blue card and certificate of financial security", "cross_family": true }, { "answer_id": "MLC-WRH-B-006", "score": 0.46250587701797485, "sibling_score": 0.46250587701797485, "answer_score": null, "sibling_qid": "MUM-2026-07-3680-Q005", "sibling_text": "what is mlc certificate under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents 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Bulk carrier as per solas? 2 isps code? Security level 2? 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Explain.", "cross_family": false }, { "answer_id": "BFS-257-004", "score": 0.5629092931747436, "sibling_score": null, "answer_score": 0.5629092931747436, "sibling_qid": "", "sibling_text": "boiler burner turn down ratio turn down maximum firing rate minimum firing rate with a stable well atomised flame wide turn down follows low demand without on off cycling narrow turn down cycles", "sibling_family": "", "via": "answer_title", "answer_title": "Boiler burner turn-down ratio", "cross_family": false } ] }, { "qid": "KOL-2025-01-1796-Q005", "text": "Function and diff transmiter and transducer", "family": "Gauges & Tools", "subtopic": "Pressure Gauge Calibration", "tid": "KOL-2025-01-1796", "tray": "new", "candidates": [ { "answer_id": "TPL-SENS-B-002", "score": 0.5769445896148682, "sibling_score": 0.5769445896148682, "answer_score": null, "sibling_qid": "MUM-2026-06-3616-Q002", "sibling_text": "transmitter and transducer difference and working", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Sensors, transducers & transmitters — and why 4–20 mA", "cross_family": true }, { "answer_id": "AUC-SEN-01", "score": 0.5769445300102234, "sibling_score": 0.5769445300102234, "answer_score": null, "sibling_qid": "KOL-2026-05-0051-Q011", "sibling_text": "transmitter and transducer difference and working", "sibling_family": "", "via": "sibling", "answer_title": "Transducers and transmitters — what they are and how they classify", "cross_family": false }, { "answer_id": "TPL-SENS-A-001", "score": 0.5401648283004761, "sibling_score": 0.5401648283004761, "answer_score": 0.3832753002643585, "sibling_qid": "KOL-2021-09-2490-Q001", "sibling_text": "dp transmiterr", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Differential pressure cell / DP transmitter working and use", "cross_family": true } ] }, { "qid": "KOL-2025-01-1964-Q006", "text": "Expansion tank is overfilling, reasons", "family": "Heat Exchangers & Coolers", "subtopic": "Expansion Arrangement", "tid": "KOL-2025-01-1964", "tray": "new", "candidates": [ { "answer_id": "STERN-P03-002", "score": 0.6036079525947571, "sibling_score": 0.6036079525947571, "answer_score": null, "sibling_qid": "MUM-2026-06-3364-Q011", "sibling_text": "fwd seal tank level increasing reason", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Stern-tube seals: arrangement, air/lip seals, renewal/replacement and the vulcanized split-seal fitting method", "cross_family": true }, { "answer_id": "SBPG-A-003", "score": 0.6025111675262451, "sibling_score": 0.6025111675262451, "answer_score": null, "sibling_qid": "MUM-2025-03-1101-Q011S2", "sibling_text": "stuffing drain tank level rising reason", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Stuffing box leakage — symptoms, drain-tank rise, running checks, source and post-assembly confirmation", "cross_family": true }, { "answer_id": "STEER-055-A-004", "score": 0.5993788242340088, "sibling_score": 0.5993788242340088, "answer_score": null, "sibling_qid": "KOC-2022-01-0949-Q004", "sibling_text": "fwd hyd tank overflowing reasons", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Hydraulic faults — air, sluggish response, locking, leakage", "cross_family": true } ] }, { "qid": "KOL-2025-01-1964-Q008", "text": "Gen starting in air, but not in fuel, why?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE Governor", "tid": "KOL-2025-01-1964", "tray": "review", "candidates": [ { "answer_id": "ME-NOSTART-001", "score": 0.7215186953544617, "sibling_score": 0.7215186953544617, "answer_score": 0.5486317873001099, "sibling_qid": "MUM-2026-04-2669-Q003", "sibling_text": "ae starting on air not on fuel reason nd actions", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Starts / turns on air but will not start on fuel — causes, checks and rectification", "cross_family": false }, { "answer_id": "RSTA-563-002", "score": 0.6593871116638184, "sibling_score": 0.6593871116638184, "answer_score": 0.5519373059272766, "sibling_qid": "KOL-2024-02-4037-Q008", "sibling_text": "engine starting on air not on fuel reasons", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "She runs on starting air but won't fire on fuel — reasons and your action", "cross_family": true }, { "answer_id": "ME-NOSTART-003", "score": 0.6060537099838257, "sibling_score": 0.6060537099838257, "answer_score": null, "sibling_qid": "KOL-2025-07-1819-Q014", "sibling_text": "engine fail to start on air", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Will not turn or start on air — checks and rectification", "cross_family": true } ] }, { "qid": "KOL-2025-01-1967-Q001", "text": "Types of ship sailed? Engine type?", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "KOL-2025-01-1967", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8196818232536316, "sibling_score": 0.8196818232536316, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.7720510959625244, "sibling_score": 0.7720510959625244, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q001", "sibling_text": "type of ship sailed and engines details", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7644151449203491, "sibling_score": 0.7644151449203491, "answer_score": null, "sibling_qid": "KOL-2025-12-2031-Q002", "sibling_text": "type of ship and engine sailed engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "KOL-2025-01-1967-Q007", "text": "Type of engine sailed.", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOL-2025-01-1967", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8497133851051331, "sibling_score": 0.8497133851051331, "answer_score": null, "sibling_qid": "MUM-2026-04-1007-Q002", "sibling_text": "type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.7688729166984558, "sibling_score": 0.7688729166984558, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q001", "sibling_text": "type of ship sailed and engines details", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7366728186607361, "sibling_score": 0.7366728186607361, "answer_score": null, "sibling_qid": "KOL-2025-12-2031-Q002", "sibling_text": "type of ship and engine sailed engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "KOL-2025-01-2757-Q002", "text": "ICCP diode failure indication ?", "family": "Electrical - ICCP & Cathodic Protection", "subtopic": "ICCP", "tid": "KOL-2025-01-2757", "tray": "new", "candidates": [ { "answer_id": "DIODESO-001", "score": 0.5727095603942871, "sibling_score": 0.5727095603942871, "answer_score": null, "sibling_qid": "MUM-2026-02-2927-Q012", "sibling_text": "diode in excitation system shorted", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Two alternators in parallel — one rotating rectifier diode goes short circuit. What happens, what if it goes open instead, and how do you know which it is?", "cross_family": true }, { "answer_id": "ICCP-119-P01-002", "score": 0.5582140684127808, "sibling_score": 0.5582140684127808, "answer_score": null, "sibling_qid": "KOC-2025-02-1485-Q003", "sibling_text": "iccp circuit diagram", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP circuit / control arrangement, construction and main components", "cross_family": false }, { "answer_id": "ICCP-119-P01-003", "score": 0.5385165810585022, "sibling_score": 0.5385165810585022, "answer_score": null, "sibling_qid": "MUM-2024-02-1424-Q004", "sibling_text": "iccp full with voltages current value", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP values, impressed-current meaning, anode/cathode roles and materials", "cross_family": false } ] }, { "qid": "KOL-2025-01-2758-Q008", "text": "Brushless excitation and AVR ?", "family": "Electrical - Generator & Alternator", "subtopic": "Brushless Alternator", "tid": "KOL-2025-01-2758", "tray": "review", "candidates": [ { "answer_id": "BRUSHALT-A-001", "score": 0.6611669659614563, "sibling_score": 0.6611669659614563, "answer_score": 0.5230048477649688, "sibling_qid": "KOL-2026-02-2961-Q001", "sibling_text": "brushless excitation working", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01 · Working principle of the brushless alternator / brushless excitation systemHigh", "cross_family": false }, { "answer_id": "AVR-EXC-F-001", "score": 0.6486679911613464, "sibling_score": 0.6486679911613464, "answer_score": null, "sibling_qid": "MUM-2026-04-2104-Q004", "sibling_text": "what types of avr i told carbon pile electronic avr for brushless static avr transformer miscommunication i explained static avr but was expecting brushless type but no time to explain that", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "How does a carbon-pile AVR / regulator work?", "cross_family": false }, { "answer_id": "AVR-EXC-G-002", "score": 0.6476984024047852, "sibling_score": 0.6476984024047852, "answer_score": 0.5930131018161774, "sibling_qid": "MUM-2025-05-1525-Q001", "sibling_text": "uti tape working and full form brushless alternator component why avr", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Brushless excitation: how DC reaches the rotor", "cross_family": false } ] }, { "qid": "KOL-2025-01-2760-Q001", "text": "What will happen if diode is open and in second case it is short circuited while Generator is running ?", "family": "Electrical - Generator & Alternator", "subtopic": "Brushless Alternator", "tid": "KOL-2025-01-2760", "tray": "review", "candidates": [ { "answer_id": "DIODESO-001", "score": 0.7167999148368835, "sibling_score": 0.7167999148368835, "answer_score": 0.4460790395736694, "sibling_qid": "MUM-2025-09-1640-Q001", "sibling_text": "two gen running and suddenly one diode open ckt short ckt", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Two alternators in parallel — one rotating rectifier diode goes short circuit. What happens, what if it goes open instead, and how do you know which it is?", "cross_family": false }, { "answer_id": "DIODESO-002", "score": 0.3806586846709251, "sibling_score": null, "answer_score": 0.3806586846709251, "sibling_qid": "", "sibling_text": "explain the rotating diodes in a brushless alternator and the problems that arise in the brushless excitation system including diode short circuit no brushes or slip rings a reliability gain but the rectifier now sits on the rotating shaft and can t be inspected or metered live chain avr stationary exciter field rotating exciter armature rotating rectifier six diodes main rotor field a pilot excit", "sibling_family": "", "via": "answer_title", "answer_title": "Explain the rotating diodes in a brushless alternator and the problems that arise in the brushless excitation system, including diode short circuit", "cross_family": false }, { "answer_id": "NO-VOLT-001", "score": 0.37482880949974057, "sibling_score": null, "answer_score": 0.37482880949974057, "sibling_qid": "", "sibling_text": "the 3 e reports the generator has started but no voltage is showing reasons and your actions as 2 e supply first fault second protect whatever is carrying the ship do not turn a dead standby set into a blackout meter or machine measure at the alternator terminals with a single independent instrument the maker s manual is explicit do not rely on panel meters", "sibling_family": "", "via": "answer_title", "answer_title": "The 3/E reports the generator has started but no voltage is showing — reasons, and your actions as 2/E", "cross_family": false } ] }, { "qid": "KOL-2025-01-2763-Q002", "text": "ICCP , working , materials of anode and cathode , functioning of ICCP ?", "family": "Electrical - ICCP & Cathodic Protection", "subtopic": "ICCP", "tid": "KOL-2025-01-2763", "tray": "review", "candidates": [ { "answer_id": "ICCP-119-P01-003", "score": 0.7133144736289978, "sibling_score": 0.7133144736289978, "answer_score": 0.5265170753002166, "sibling_qid": "KOC-2026-03-0886-Q016", "sibling_text": "iccp andode material", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP values, impressed-current meaning, anode/cathode roles and materials", "cross_family": false }, { "answer_id": "ICCP-P02-001", "score": 0.6858209371566772, "sibling_score": 0.6858209371566772, "answer_score": 0.42078871130943296, "sibling_qid": "MUM-2026-03-2034-Q002", "sibling_text": "iccp ref anode material", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP reference cell / reference electrode — purpose, material, location, selection", "cross_family": false }, { "answer_id": "ICCP-119-P01-002", "score": 0.6215510964393616, "sibling_score": 0.6215510964393616, "answer_score": null, "sibling_qid": "KOC-2026-02-0822-Q014", "sibling_text": "draw and explain iccp system material of anodes titanium and zinc", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP circuit / control arrangement, construction and main components", "cross_family": false } ] }, { "qid": "KOL-2025-01-2764-Q005", "text": "Zener diode safety barrier ?", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOL-2025-01-2764", "tray": "review", "candidates": [ { "answer_id": "FSF-BF073-004", "score": 0.707253098487854, "sibling_score": 0.707253098487854, "answer_score": null, "sibling_qid": "CHE-2026-03-0359-Q001", "sibling_text": "zener diode zener barrier working in intrinsically safe", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a magnetic fail safe?", "cross_family": false }, { "answer_id": "HAZ-EX-B-001", "score": 0.6951655745506287, "sibling_score": 0.6951655745506287, "answer_score": null, "sibling_qid": "CHE-2026-03-0358-Q005", "sibling_text": "zener barrier working in intrinsically safe", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Intrinsically safe (Ex i) equipment — what it is, how it works, where it is used, how you identify it", "cross_family": false }, { "answer_id": "EPC-P02-01", "score": 0.6216151714324951, "sibling_score": 0.6216151714324951, "answer_score": 0.4860326290130615, "sibling_qid": "MUM-2026-06-3633-Q006", "sibling_text": "how it works what is zener barrier applications of zener diode", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a zener diode? Draw its symbol, explain its working principle, and draw and explain its characteristic curve including the zener (breakdown) voltage.", "cross_family": false } ] }, { "qid": "KOL-2025-01-3739-Q002", "text": "Boiler gauge glass oil , how to find and counter measures", "family": "Boilers - Operations & Firing", "subtopic": "Scum / Blow Down", "tid": "KOL-2025-01-3739", "tray": "review", "candidates": [ { "answer_id": "SBD-001", "score": 0.7793339490890503, "sibling_score": 0.7793339490890503, "answer_score": 0.5976538687944412, "sibling_qid": "KOL-2026-03-3936-Q002", "sibling_text": "traces of oil found in boiler gauge glass how do you counteract", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "You find oil in the boiler gauge glass — causes, how you identify the source, and your actions as 2/E (including if manoeuvring). What is carryover?", "cross_family": false }, { "answer_id": "BCFS-001", "score": 0.5349574357271194, "sibling_score": null, "answer_score": 0.5349574357271194, "sibling_qid": "", "sibling_text": "detecting and responding to oil contamination in the hot well or cascade tank detect oil film or sheen on the observation tank surface smell oiliness in the gauge glass oil in water monitor alarm if fitted foaming or an unstable boiler water level never let oil into the boiler it forms an insulating film on heating surfaces causing local overheating tube bulging and failure and it makes the water ", "sibling_family": "", "via": "answer_title", "answer_title": "Detecting and responding to oil contamination in the hot well or cascade tank", "cross_family": false }, { "answer_id": "BLR-GG-001", "score": 0.5116244077682495, "sibling_score": null, "answer_score": 0.5116244077682495, "sibling_qid": "", "sibling_text": "how do you overhaul repair renew assemble or tighten a boiler gauge glass isolate first steam cock shut water cock shut drain open allow to cool work only on a dead glass strip evenly inspect glass for erosion etching cracks plus cocks ball check valves seats gland faces", "sibling_family": "", "via": "answer_title", "answer_title": "How do you overhaul, repair, renew, assemble or tighten a boiler gauge glass?", "cross_family": false } ] }, { "qid": "KOL-2025-01-3741-Q005", "text": "Hull damaged, how to report to company", "family": "Surveys - Statutory", "subtopic": "Defects on Board / Class Action", "tid": "KOL-2025-01-3741", "tray": "review", "candidates": [ { "answer_id": "ISM-AUD-P03-003", "score": 0.6945029497146606, "sibling_score": 0.6945029497146606, "answer_score": null, "sibling_qid": "MUM-2026-03-0853-Q005", "sibling_text": "hull damage has taken place how will you report to your company following sms", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "Non-conformity, major non-conformity and incident reporting under SMS", "cross_family": true }, { "answer_id": "HULL-DD-003", "score": 0.6858246326446533, "sibling_score": 0.6858246326446533, "answer_score": null, "sibling_qid": "KOC-2021-05-1755-Q011", "sibling_text": "hull breach and what actions taken to report to company", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "3. Side-shell hole or hull breach at the waterline: emergency action and repair", "cross_family": true }, { "answer_id": "HULL-DD-006", "score": 0.6568835377693176, "sibling_score": 0.6568835377693176, "answer_score": 0.5333202302455902, "sibling_qid": "CHE-2025-07-0404-Q003", "sibling_text": "dent on your ship how to report to office", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "7. Hull damage / collision / dent reporting and shell-plating designation", "cross_family": true } ] }, { "qid": "KOL-2025-01-3742-Q002", "text": "Cast iron welding ?", "family": "Workshop & Welding", "subtopic": "Cast Iron Welding", "tid": "KOL-2025-01-3742", "tray": "review", "candidates": [ { "answer_id": "WELD-B-001", "score": 0.8306350111961365, "sibling_score": 0.8306350111961365, "answer_score": 0.548031622171402, "sibling_qid": "MUM-2026-05-3209-Q007", "sibling_text": "cast iron welding", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding & crack-repair of aluminium and cast iron, including metal stitching", "cross_family": false }, { "answer_id": "LH-ELEC-006", "score": 0.5098121583461761, "sibling_score": null, "answer_score": 0.5098121583461761, "sibling_qid": "", "sibling_text": "6 how would you approach a cast iron valve repair when the examiner probes welding and low hydrogen electrodes first response replace or fit a sound same size valve a welded cast iron repair is a stop gap not equal to new if welding cast iron not a plain mild steel low hydrogen rod the high carbon makes a hard brittle cracking weld", "sibling_family": "", "via": "answer_title", "answer_title": "6. How would you approach a cast-iron valve repair when the examiner probes welding and low-hydrogen electrodes?", "cross_family": false }, { "answer_id": "METAL-LOCK-001", "score": 0.4936324745416641, "sibling_score": null, "answer_score": 0.4936324745416641, "sibling_qid": "", "sibling_text": "what is metal locking stitching why use it materials benefits cold process zero heat applied at any stage for brittle cast iron and other castings where welding risks further cracking or a brittle heat affected zone", "sibling_family": "", "via": "answer_title", "answer_title": "What is metal locking / stitching, why use it, materials & benefits", "cross_family": false } ] }, { "qid": "KOL-2025-01-3743-Q001", "text": "Hatch cover opening", "family": "", "subtopic": "Hatch Coaming", "tid": "KOL-2025-01-3743", "tray": "review", "candidates": [ { "answer_id": "HATCH-CVR-006", "score": 0.656294584274292, "sibling_score": 0.656294584274292, "answer_score": 0.5175669848918915, "sibling_qid": "CHE-2026-04-0169-Q003", "sibling_text": "how hatch cover is operate", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "How is a hatch cover operated?", "cross_family": false }, { "answer_id": "HATCH-COAM-001", "score": 0.6312713027000427, "sibling_score": 0.6312713027000427, "answer_score": 0.4672457277774811, "sibling_qid": "KOC-2021-07-0007-Q007", "sibling_text": "hatch coaming", "sibling_family": "", "via": "sibling", "answer_title": "What is a hatch coaming? 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Isolating one turbocharger when more than one is fitted", "cross_family": true } ] }, { "qid": "KOL-2025-03-0916-Q002", "text": "Training manual onboard, purpose, contents.", "family": "SOLAS - LSA & Lifeboats", "subtopic": "LSA Code", "tid": "KOL-2025-03-0916", "tray": "review", "candidates": [ { "answer_id": "FIRE-P05-01", "score": 0.7431260347366333, "sibling_score": 0.7431260347366333, "answer_score": 0.4379270076751709, "sibling_qid": "KOL-2023-12-0797-Q002", "sibling_text": "training manual on board", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fire-safety training manual — SOLAS II-2 Reg 15 contents and location", "cross_family": true }, { "answer_id": "SMSFR-002", "score": 0.5929983258247375, "sibling_score": 0.5929983258247375, "answer_score": 0.42129694670438766, "sibling_qid": "KOL-2020-12-0448-Q005", "sibling_text": "what is the need of sms manual onboard", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the Safety Management System — the SMS manual, its contents, objectives, why it is needed onboard, and the company SMS policy?", "cross_family": true }, { "answer_id": "LSA-CODE-003", "score": 0.5901283025741577, "sibling_score": 0.5901283025741577, "answer_score": null, "sibling_qid": "MUM-2023-03-0096-Q007", "sibling_text": "what s the difference between the instructions in lsa and training manual main difference as per solas", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "LSA Code instructions versus the ship’s training manual — the SOLAS distinction", "cross_family": false } ] }, { "qid": "KOL-2025-03-0916-Q006", "text": "Management review. 8 .Free surface effect, calculation etc.(by Mr. Vikrant rai)", "family": "ISM Code", "subtopic": "ISM / SMS / Audit", "tid": "KOL-2025-03-0916", "tray": "review", "candidates": [ { "answer_id": "FSE-P03-003", "score": 0.6537688374519348, "sibling_score": 0.6537688374519348, "answer_score": 0.4471636027097702, "sibling_qid": "KOC-2026-04-0900-Q004", "sibling_text": "explain free surface effect calculation", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "3. Formula, factors and calculation", "cross_family": true }, { "answer_id": "FSE-P02-002", "score": 0.6047208309173584, "sibling_score": 0.6047208309173584, "answer_score": null, "sibling_qid": "MUM-2025-11-0569-Q001", "sibling_text": "free surface effect in detail forward arrangements", "sibling_family": "", "via": "sibling", "answer_title": "Constructional arrangements in tanks and tankers that reduce FSE", "cross_family": false }, { "answer_id": "FSE-P02-001", "score": 0.5936366319656372, "sibling_score": 0.5936366319656372, "answer_score": 0.5136453926563262, "sibling_qid": "CHE-2026-05-0557-Q012", "sibling_text": "explain free surface effect what provisions are provided to reduce it", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Reducing and correcting free surface effect in practice", "cross_family": true } ] }, { "qid": "KOL-2025-03-0917-Q005", "text": "MOU and names", "family": "Surveys - Statutory", "subtopic": "MOU", "tid": "KOL-2025-03-0917", "tray": "new", "candidates": [ { "answer_id": "PSC-RO-P02-004", "score": 0.587706446647644, "sibling_score": 0.587706446647644, "answer_score": 0.26402941495180127, "sibling_qid": "NOI-2026-09-0010-Q006", "sibling_text": "all mou", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What are PSC MoUs, and what are the major regional MoUs?", "cross_family": false }, { "answer_id": "PSC-SURV-P01-001", "score": 0.500363290309906, "sibling_score": 0.500363290309906, "answer_score": null, "sibling_qid": "MUM-2025-11-2864-Q010", "sibling_text": "x many cross in this what is mou and why it is and all", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is a PSC MoU, and why is regional cooperation between port States required?", "cross_family": false }, { "answer_id": "ENG-NOM-006", "score": 0.4661174416542053, "sibling_score": 0.4661174416542053, "answer_score": null, "sibling_qid": "KOL-2022-09-4015-Q005", "sibling_text": "what is nomeclature of me and mc", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Short-form asks: SMC-C, LMC, and ME vs MC quickly", "cross_family": true } ] }, { "qid": "KOL-2025-03-0917-Q007", "text": "Safety committee meeting", "family": "Risk & Safety Management", "subtopic": "Safety Meeting / Committee", "tid": "KOL-2025-03-0917", "tray": "new", "candidates": [ { "answer_id": "IMO-5PIL-005", "score": 0.5657526850700378, "sibling_score": 0.5657526850700378, "answer_score": null, "sibling_qid": "MUM-2026-01-0693-Q004S4", "sibling_text": "convention for safeties", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "IMO conventions for ship safety", "cross_family": true }, { "answer_id": "FFH-001", "score": 0.5606127381324768, "sibling_score": 0.5606127381324768, "answer_score": null, "sibling_qid": "KOC-2026-09-2192-Q009", "sibling_text": "formal safety assessment", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "What is Formal Safety Assessment (FSA), and what are its five steps?", "cross_family": false }, { "answer_id": "IMO-CODES-P03-001", "score": 0.5558731555938721, "sibling_score": 0.5558731555938721, "answer_score": null, "sibling_qid": "MUM-2024-12-2780-Q007", "sibling_text": "safety related convention", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Important IMO conventions and codes: parent links", "cross_family": true } ] }, { "qid": "KOL-2025-03-0918-Q003", "text": "Fin stablizer over passive tank", "family": "", "subtopic": "Anti-Roll Tank / Stabiliser", "tid": "KOL-2025-03-0918", "tray": "new", "candidates": [ { "answer_id": "STAB-GZ-P04-004", "score": 0.47101104259490967, "sibling_score": 0.47101104259490967, "answer_score": null, "sibling_qid": "KOC-2023-03-0175-Q002", "sibling_text": "statical stability draw for more and less freeboard", "sibling_family": "", "via": "sibling", "answer_title": "Beam, freeboard, GM and the wall-sided curve", "cross_family": false }, { "answer_id": "LOLL-P02-004", "score": 0.4684160351753235, "sibling_score": 0.4684160351753235, "answer_score": null, "sibling_qid": "KOC-2023-08-0208-Q005", "sibling_text": "draw stability curve negative gm 5 draw transom stern", "sibling_family": "", "via": "sibling", "answer_title": "3. Angle of loll on the GZ curve — the GM condition", "cross_family": false }, { "answer_id": "STS-P02-004", "score": 0.4648626446723938, "sibling_score": 0.4648626446723938, "answer_score": null, "sibling_qid": "KOL-2025-04-3772-Q006", "sibling_text": "propeller overhang what is the design factor of stern tube liner", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "STS-P02-04 - Tail shaft design, bearing materials and bending support", "cross_family": false } ] }, { "qid": "KOL-2025-03-0919-Q003", "text": "MLC 2006 ,Wages ,SEA between who", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOL-2025-03-0919", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-002", "score": 0.4859500527381897, "sibling_score": 0.4859500527381897, "answer_score": null, "sibling_qid": "MUM-2022-07-0027-Q005", "sibling_text": "mlc 2006 wages rest hours", "sibling_family": "MLC", "via": "sibling", "answer_title": "Work and rest hours under MLC — the criteria, the weekly limit, the intervals", "cross_family": false }, { "answer_id": "MLC-WRH-B-010", "score": 0.4500828683376312, "sibling_score": 0.4500828683376312, "answer_score": 0.24482086300849915, "sibling_qid": "MUM-2025-11-0573-Q004", "sibling_text": "how are wages set under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "SEA, the CBA parties, and how wages are set — action on non-payment", "cross_family": false }, { "answer_id": "MLC-WRH-B-007", "score": 0.38050705194473267, "sibling_score": 0.38050705194473267, "answer_score": 0.20750114023685454, "sibling_qid": "MUM-2026-02-0734-Q007", "sibling_text": "mlc 2006 detainable deficiency", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false } ] }, { "qid": "KOL-2025-03-0921-Q003", "text": "If draft increase, affect on Rolling.", "family": "SOLAS", "subtopic": "Static / Dynamic Stability", "tid": "KOL-2025-03-0921", "tray": "new", "candidates": [ { "answer_id": "BK-001", "score": 0.4587326645851135, "sibling_score": 0.4587326645851135, "answer_score": null, "sibling_qid": "KOC-2025-07-0633-Q017", "sibling_text": "how its reducing rolling", "sibling_family": "", "via": "sibling", "answer_title": "What is a bilge keel and what is its purpose?", "cross_family": false }, { "answer_id": "PAR-ROLL-005", "score": 0.42620065808296204, "sibling_score": 0.42620065808296204, "answer_score": null, "sibling_qid": "MUM-2026-03-0810-Q002", "sibling_text": "2e duties to help in parametric rolling", "sibling_family": "", "via": "sibling", "answer_title": "05. Measures and operational actions to avoid or counter it", "cross_family": false }, { "answer_id": "PAR-ROLL-001", "score": 0.4167511463165283, "sibling_score": 0.4167511463165283, "answer_score": null, "sibling_qid": "MUM-2022-07-0023-Q008", "sibling_text": "parametric rolling", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "01. What is parametric rolling?", "cross_family": false } ] }, { "qid": "KOL-2025-03-0921-Q006", "text": "Lap or butt welding whose strength is more ?", "family": "Workshop & Welding", "subtopic": "Welding / Brazing / Soldering", "tid": "KOL-2025-03-0921", "tray": "review", "candidates": [ { "answer_id": "WELD-B-010", "score": 0.6843621730804443, "sibling_score": 0.6843621730804443, "answer_score": 0.49499305486679074, "sibling_qid": "KOL-2018-06-3159-Q001", "sibling_text": "butt weld and lap weld which is good adv and dis adv", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Weld joint types and selection — butt, lap, slot and others", "cross_family": false }, { "answer_id": "PW-327-003", "score": 0.5519803166389465, "sibling_score": 0.5519803166389465, "answer_score": null, "sibling_qid": "KOL-2021-08-1623-Q007", "sibling_text": "weld then in dd", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "3. Shell / deck plate repair and renewal in dry dock (class context)", "cross_family": false }, { "answer_id": "WELD-PATM-003", "score": 0.5485685467720032, "sibling_score": 0.5485685467720032, "answer_score": null, "sibling_qid": "KOL-2026-09-4302-Q004", "sibling_text": "mig advantage over tig", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "TIG welding – process, shielding gas, advantages, uses", "cross_family": false } ] }, { "qid": "KOL-2025-03-0922-Q004", "text": "MLC 2006, how wages are decided, then asked about CBA, then asked about CBA is agreement b/t which parties, I said 2 parties seafarers union and ownership compines, he was not accepting it.", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOL-2025-03-0922", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-010", "score": 0.6156741976737976, "sibling_score": 0.6156741976737976, "answer_score": 0.5548058480024337, "sibling_qid": "MUM-2022-07-0013-Q007", "sibling_text": "who all are the parties to the cba", "sibling_family": "MLC", "via": "sibling", "answer_title": "SEA, the CBA parties, and how wages are set — action on non-payment", "cross_family": false }, { "answer_id": "MLC-WRH-B-002", "score": 0.5004669427871704, "sibling_score": 0.5004669427871704, "answer_score": null, "sibling_qid": "MUM-2022-07-0027-Q005", "sibling_text": "mlc 2006 wages rest hours", "sibling_family": "MLC", "via": "sibling", "answer_title": "Work and rest hours under MLC — the criteria, the weekly limit, the intervals", "cross_family": false }, { "answer_id": "STCW-MAN-006", "score": 0.4551013708114624, "sibling_score": 0.4551013708114624, "answer_score": null, "sibling_qid": "KOL-2021-08-0546-Q002", "sibling_text": "categories of seafarers as per stcw he was too much angry about the coc attempt i don t why he said very low level thinking i was totally blank in both questions then he said mitra sir to start", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What are the levels and categories of seafarer under STCW, and what are the duties of the Second Engineer at management level?", "cross_family": true } ] }, { "qid": "KOL-2025-03-1797-Q001", "text": "Type of ship of engine", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "KOL-2025-03-1797", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8097630143165588, "sibling_score": 0.8097630143165588, "answer_score": null, "sibling_qid": "MUM-2025-08-2357-Q001", "sibling_text": "type of ship type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.7905529737472534, "sibling_score": 0.7905529737472534, "answer_score": null, "sibling_qid": "MUM-2026-07-3668-Q004", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.741847038269043, "sibling_score": 0.741847038269043, "answer_score": null, "sibling_qid": "KOL-2025-12-2031-Q002", "sibling_text": "type of ship and engine sailed engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "KOL-2025-03-1797-Q005", "text": "Scrap down analysis", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "LO Test / Analysis", "tid": "KOL-2025-03-1797", "tray": "new", "candidates": [ { "answer_id": "SCAV-323-P02-006", "score": 0.48682987689971924, "sibling_score": 0.48682987689971924, "answer_score": 0.32012947797775265, "sibling_qid": "MUM-2026-06-3536-Q006", "sibling_text": "scavenge drain analysis", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Scavenge drain analysis and high scavenge-drain level", "cross_family": true }, { "answer_id": "LO-TEST-P01-003", "score": 0.4852536618709564, "sibling_score": 0.4852536618709564, "answer_score": 0.2700632631778717, "sibling_qid": "KOC-2023-01-1806-Q008", "sibling_text": "lo analysis report", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Reading a shore analysis report: metals, FTIR and red flags", "cross_family": false }, { "answer_id": "FQCC-583-A-005", "score": 0.4201366901397705, "sibling_score": 0.4201366901397705, "answer_score": null, "sibling_qid": "MUM-2025-09-2411-Q005", "sibling_text": "fo analysis report all checks", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "The bunker / fuel oil analysis report — what is checked and who says so", "cross_family": true } ] }, { "qid": "KOL-2025-03-1798-Q001", "text": "&6 Type of engine you have sailed, I told ME engine and conventional Man b&w.", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOL-2025-03-1798", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.7132088541984558, "sibling_score": 0.7132088541984558, "answer_score": null, "sibling_qid": "CHE-2026-03-0250-Q003", "sibling_text": "type of engines sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "MCC-MEB-P01-001", "score": 0.6568079590797424, "sibling_score": 0.6568079590797424, "answer_score": null, "sibling_qid": "MUM-2026-09-3997-Q002", "sibling_text": "type of engine worked me mcc me b and rta", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "MC-C (\"Compact\") engine — design and the main constructional differences from MC", "cross_family": false }, { "answer_id": "ETP-344-P03-001", "score": 0.6408555507659912, "sibling_score": 0.6408555507659912, "answer_score": null, "sibling_qid": "MUM-2026-06-3492-Q002", "sibling_text": "which type of engines worked on", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false } ] }, { "qid": "KOL-2025-03-1798-Q003", "text": "Rudder crack , what will you do to repair", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2025-03-1798", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.7573930621147156, "sibling_score": 0.7573930621147156, "answer_score": null, "sibling_qid": "MUM-2026-04-2689-Q008", "sibling_text": "rudder crack repair", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "HULL-DD-001", "score": 0.5902191996574402, "sibling_score": 0.5902191996574402, "answer_score": null, "sibling_qid": "KOL-2020-11-3360-Q004", "sibling_text": "hull crack repair i told the procedure followed by welding then he asked if crack occurs in the welding again then how will you repair", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "1. Hull plate / shell-weld crack repair in drydock", "cross_family": true }, { "answer_id": "RUD-DROP-003", "score": 0.5880039930343628, "sibling_score": 0.5880039930343628, "answer_score": null, "sibling_qid": "KOL-2024-03-3677-Q002", "sibling_text": "how to check rudder drop where to fit trammel gauge rudder drop has reached its max limit and bearing white metal has gone how u ll proceed with its repair and what you ll do to bearing", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Rudder drop at the limit: the decision", "cross_family": false } ] }, { "qid": "KOL-2025-03-1798-Q004", "text": "setting of safety valve", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2025-03-1798", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-001", "score": 0.7833302021026611, "sibling_score": 0.7833302021026611, "answer_score": null, "sibling_qid": "MUM-2026-02-1255-Q006", "sibling_text": "setting of safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "ECON-EGB-004", "score": 0.7666589617729187, "sibling_score": 0.7666589617729187, "answer_score": 0.5443198293447494, "sibling_qid": "KOL-2026-09-4304-Q003", "sibling_text": "safety valve setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Safety-valve setting after overhaul & why set higher than the boiler", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.7211589217185974, "sibling_score": 0.7211589217185974, "answer_score": null, "sibling_qid": "KOC-2026-09-2205-Q019", "sibling_text": "setting safety valve infront of surveyor", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false } ] }, { "qid": "KOL-2025-03-1800-Q001", "text": "Bunker line pressure testing. What medium you use. Pressure and time.", "family": "2-Stroke - Operations & Casualty", "subtopic": "Casualty / Emergency Stop", "tid": "KOL-2025-03-1800", "tray": "review", "candidates": [ { "answer_id": "BLT-339-001", "score": 0.7904966473579407, "sibling_score": 0.7904966473579407, "answer_score": 0.5056821346282959, "sibling_qid": "MUM-2025-03-0968-Q001", "sibling_text": "bunker line pressure testing what medium you use pressure and time", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Bunker Line Pressure Test — medium, pressure, holding, draining and records", "cross_family": true }, { "answer_id": "PPT-002", "score": 0.5604637444019317, "sibling_score": null, "answer_score": 0.5604637444019317, "sibling_qid": "", "sibling_text": "bunker line pressure test procedure frequency pressure duration checks and draining hydraulic test liquid not air testing with air is invalid and a recognised port state deficiency pressure basis for marine fuel oil piping iacs ur p2 class expresses the test as 1 5 design pressure use the ship approved value from the bunker plan or line rating 33 cfr 156 170 s 1 5 mawp is a us transfer operation b", "sibling_family": "", "via": "answer_title", "answer_title": "Bunker line pressure test: procedure, frequency, pressure, duration, checks and draining", "cross_family": false }, { "answer_id": "PPT-001", "score": 0.48238614201545715, "sibling_score": null, "answer_score": 0.48238614201545715, "sibling_qid": "", "sibling_text": "can pipe pressure testing be carried out pneumatically hydraulic hydrostatic test is the norm line filled with liquid raised to 1 5 design pressure held then inspected liquid is nearly incompressible so minimal stored energy the hazard in a pneumatic test is the stored energy not the pressure figure compressed gas holds far more energy at equal pressure and fails explosively", "sibling_family": "", "via": "answer_title", "answer_title": "Can pipe pressure testing be carried out pneumatically?", "cross_family": false } ] }, { "qid": "KOL-2025-03-1800-Q002", "text": "Refrigerator compressor is v belt driven how will you fit the new belt and what all alignment you check. And tightness how will you check", "family": "2-Stroke - Operations & Casualty", "subtopic": "Casualty / Emergency Stop", "tid": "KOL-2025-03-1800", "tray": "review", "candidates": [ { "answer_id": "REEF-COMP-005", "score": 0.8086951971054077, "sibling_score": 0.8086951971054077, "answer_score": 0.6151479780673981, "sibling_qid": "MUM-2025-03-0968-Q002", "sibling_text": "refrigerator compressor is v belt driven how will you fit the new belt and what all alignment you check and tightness how will you check", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "V-belt drive on reefer compressors — why, and checking condition, alignment, tension, replacement", "cross_family": true }, { "answer_id": "PAL-620-001", "score": 0.6475255489349365, "sibling_score": 0.6475255489349365, "answer_score": null, "sibling_qid": "KOL-2019-10-3280-Q003", "sibling_text": "compressor and its motor allignment checks before doing any test like dial indicator method", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "How do you check and set the alignment between a pump and its motor? Horizontal centrifugal pump — where the dial gauge goes and what values apply.", "cross_family": true }, { "answer_id": "EXV-P02-003", "score": 0.5616960525512695, "sibling_score": 0.5616960525512695, "answer_score": null, "sibling_qid": "MUM-2026-01-2537-Q003", "sibling_text": "checks in exhaust valve before fitting", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Checks and tests after overhaul — before refitting", "cross_family": false } ] }, { "qid": "KOL-2025-03-1800-Q003", "text": "In DD checks on rudder, what clearances, how will you take pintle clearance", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2025-03-1800", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.7323294878005981, "sibling_score": 0.7323294878005981, "answer_score": 0.5205837190151215, "sibling_qid": "KOL-2020-09-3346-Q009", "sibling_text": "clearances that you will measure for propellor and rudder in drydock how to check pintle clearance without removing rudder from place finally can breathe freely thanx everyone for all the help", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "RUD-DROP-002", "score": 0.608203673362732, "sibling_score": null, "answer_score": 0.608203673362732, "sibling_qid": "", "sibling_text": "rudder clearances which where and how taken pintle bush clearance at each pintle top bottom f a and p s on long feeler gauges or pintle od vs bush id by caliper top mid bottom the maximum is the clearance renew the bush at the maker class limit carrier bearing wear down the rudder drop poker trammel gauge hull datum to stock mark against the recorded newbuilding reading", "sibling_family": "", "via": "answer_title", "answer_title": "Rudder clearances: which, where and how taken", "cross_family": false }, { "answer_id": "DUS-P5-05", "score": 0.5050949394702912, "sibling_score": null, "answer_score": 0.5050949394702912, "sibling_qid": "", "sibling_text": "rudder checks and rudder blade tightness leak test in drydock visual checks coating condition cavitation erosion on the blade leading edge propeller side face sacrificial anodes against the approved cathodic protection plan grounding continuity against the approved acceptance criterion plate and weld cracks pintle clearance measured with feeler the numerical acceptance limit is class specific and ", "sibling_family": "", "via": "answer_title", "answer_title": "Rudder checks and rudder-blade tightness/leak test in drydock", "cross_family": false } ] }, { "qid": "KOL-2025-03-1800-Q004", "text": "Rudder horne what does it do. Few more don't remember and many x ques on every question. Waited in lobby n got fn 4 only", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2025-03-1800", "tray": "new", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.5559332966804504, "sibling_score": 0.5559332966804504, "answer_score": null, "sibling_qid": "KOL-2017-03-3044-Q004", "sibling_text": "4 various tests and checks on rudder in dd", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "STEER-055-A-003", "score": 0.512681782245636, "sibling_score": 0.512681782245636, "answer_score": 0.3625643849372864, "sibling_qid": "KOL-2023-08-1751-Q006", "sibling_text": "hunting gear mechanism hunting of rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Hunting gear, floating lever and buffer spring", "cross_family": false }, { "answer_id": "PIST-CSI-A-001", "score": 0.47122886776924133, "sibling_score": 0.47122886776924133, "answer_score": null, "sibling_qid": "KOL-2022-11-1718-Q007", "sibling_text": "top land of me 4 rudder locking", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Oros combustion chamber, high top land and modern 2-stroke piston development", "cross_family": true } ] }, { "qid": "KOL-2025-03-1969-Q001", "text": "Boiler corrosion types", "family": "Boilers - Water Treatment & Chemistry", "subtopic": "Boiler Water Treatment / Chemical Dosing", "tid": "KOL-2025-03-1969", "tray": "review", "candidates": [ { "answer_id": "MATPROP-A-005", "score": 0.8061485290527344, "sibling_score": 0.8061485290527344, "answer_score": null, "sibling_qid": "MUM-2022-10-2702-Q010", "sibling_text": "types of corrosion in boiler", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Corrosion and degradation mechanisms", "cross_family": true }, { "answer_id": "BWTEST-C-001", "score": 0.7941666841506958, "sibling_score": 0.7941666841506958, "answer_score": null, "sibling_qid": "KOL-2021-07-3992-Q004", "sibling_text": "types of corrosion in boiler acidic corrosion reason remedy tests result values", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "pH / acidity control — why pH is held, and what acidic or high-pH water means", "cross_family": true }, { "answer_id": "BLR-CHEM-005", "score": 0.7928966879844666, "sibling_score": 0.7928966879844666, "answer_score": 0.6297037303447723, "sibling_qid": "KOL-2018-05-1373-Q004", "sibling_text": "boiler corrosion at least 9 types", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "5. Boiler and condensate corrosion (water chemistry)", "cross_family": true } ] }, { "qid": "KOL-2025-03-1969-Q002", "text": "Type of crankshaft in 4s", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Crankshaft / Crankpin / Bearings", "tid": "KOL-2025-03-1969", "tray": "new", "candidates": [ { "answer_id": "AE-CRP-004", "score": 0.6447412371635437, "sibling_score": 0.6447412371635437, "answer_score": null, "sibling_qid": "CHE-2026-05-0548-Q008", "sibling_text": "connecting rod 4s engine explain full", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE connecting-rod inspection — ovality, trueness, serrations, action if out of limit", "cross_family": false }, { "answer_id": "CRANK-217-001", "score": 0.6429482698440552, "sibling_score": 0.6429482698440552, "answer_score": 0.5149875819683075, "sibling_qid": "MUM-2026-01-1239-Q002", "sibling_text": "type of crankshaft", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankshaft types and how the type is identified", "cross_family": true }, { "answer_id": "CRANK-217-003", "score": 0.6024301052093506, "sibling_score": 0.6024301052093506, "answer_score": 0.4880637973546982, "sibling_qid": "MUM-2022-10-1031-Q009", "sibling_text": "underslung crankshaft", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Underslung crankshaft", "cross_family": true } ] }, { "qid": "KOL-2025-03-1969-Q003", "text": "Material for crankshaft", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft Material", "tid": "KOL-2025-03-1969", "tray": "review", "candidates": [ { "answer_id": "CRANK-217-001", "score": 0.830689013004303, "sibling_score": 0.830689013004303, "answer_score": 0.49392576813697814, "sibling_qid": "MUM-2026-05-3266-Q006", "sibling_text": "material of crankshaft", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankshaft types and how the type is identified", "cross_family": false }, { "answer_id": "HT-A-001", "score": 0.7865644693374634, "sibling_score": 0.7865644693374634, "answer_score": null, "sibling_qid": "MUM-2026-05-3283-Q006", "sibling_text": "crankshaft material and heat treatment", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Heat treatment: what it is, the main methods, and why it is done", "cross_family": false }, { "answer_id": "PIST-CSI-A-003", "score": 0.6559801697731018, "sibling_score": 0.6559801697731018, "answer_score": 0.5437870472669601, "sibling_qid": "CHE-2025-08-0210-Q006", "sibling_text": "what is material of your piston piston rings and crankshaft", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston materials: crown, skirt, rod, rings and coatings", "cross_family": true } ] }, { "qid": "KOL-2025-03-1970-Q002", "text": "Types of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2025-03-1970", "tray": "review", "candidates": [ { "answer_id": "LLST-AB-001", "score": 0.817147433757782, "sibling_score": 0.817147433757782, "answer_score": 0.5332882106304169, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.7935513854026794, "sibling_score": 0.7935513854026794, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.7862049341201782, "sibling_score": 0.7862049341201782, "answer_score": 0.5277790129184723, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "KOL-2025-03-1970-Q003", "text": "Type of engine", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOL-2025-03-1970", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.7998000383377075, "sibling_score": 0.7998000383377075, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.7921890616416931, "sibling_score": 0.7921890616416931, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-001", "score": 0.45207613110542294, "sibling_score": null, "answer_score": 0.45207613110542294, "sibling_qid": "", "sibling_text": "1 turbocharger type main engine vs generator engine compressor is centrifugal in both cases only the turbine type differs large slow speed main engine axial flow turbine single stage constant pressure system", "sibling_family": "", "via": "answer_title", "answer_title": "1. Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "KOL-2025-03-1971-Q001", "text": "Type of ships sailed Type of engines i said ME-C, he asked havent done any MC, i said yes He is more interested in MC-C", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "KOL-2025-03-1971", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.6520209908485413, "sibling_score": 0.6520209908485413, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "MCC-MEB-P01-001", "score": 0.6471867561340332, "sibling_score": 0.6471867561340332, "answer_score": null, "sibling_qid": "KOC-2022-07-2031-Q002", "sibling_text": "type of ship engine model 6s70mc c c means compact explain", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "MC-C (\"Compact\") engine — design and the main constructional differences from MC", "cross_family": true }, { "answer_id": "CR-248-003", "score": 0.6456506252288818, "sibling_score": 0.6456506252288818, "answer_score": null, "sibling_qid": "KOL-2022-04-1676-Q001", "sibling_text": "type of ship sailed on type of engine i told man b w 6s50m c so he asked of tell me the advantages of having common rail i stated 3 and stopped so he asked there are atleast 14 15 advatages and you are not even close so i kept telling every difference between mc and me engines then he asked how is injection taking place in common rail", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Advantages of common rail / electronic injection over conventional jerk-pump systems", "cross_family": true } ] }, { "qid": "KOL-2025-03-1971-Q004", "text": "Difference between Transducer and Transmitter", "family": "Gauges & Tools", "subtopic": "Pressure Gauge Calibration", "tid": "KOL-2025-03-1971", "tray": "review", "candidates": [ { "answer_id": "TPL-SENS-B-002", "score": 0.6992771029472351, "sibling_score": 0.6992771029472351, "answer_score": 0.4190266951918602, "sibling_qid": "KOL-2026-04-2052-Q006", "sibling_text": "transducer and transmitter", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Sensors, transducers & transmitters — and why 4–20 mA", "cross_family": true }, { "answer_id": "AUC-SEN-01", "score": 0.6966871023178101, "sibling_score": 0.6966871023178101, "answer_score": 0.4431323230266571, "sibling_qid": "KOL-2026-05-0051-Q011", "sibling_text": "transmitter and transducer difference and working", "sibling_family": "", "via": "sibling", "answer_title": "Transducers and transmitters — what they are and how they classify", "cross_family": false }, { "answer_id": "XFMR-THY-D-001", "score": 0.5806689262390137, "sibling_score": 0.5806689262390137, "answer_score": null, "sibling_qid": "KOL-2017-12-2161-Q003", "sibling_text": "explain transformer converter inverter transmitter", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Transformer — principle and working", "cross_family": true } ] }, { "qid": "KOL-2025-03-1971-Q005", "text": "■Why boiler is only have Easing Gear", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2025-03-1971", "tray": "new", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.6176750659942627, "sibling_score": 0.6176750659942627, "answer_score": null, "sibling_qid": "MUM-2026-05-3267-Q005", "sibling_text": "boiler safety valve why you required easing gear", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "BFS-257-006", "score": 0.5090962052345276, "sibling_score": 0.5090962052345276, "answer_score": null, "sibling_qid": "MUM-2024-02-2222-Q004", "sibling_text": "3e informs boiler panting heavily actions as 2e", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler backfire / blowback / panting — causes, prevention, actions", "cross_family": true }, { "answer_id": "COT-P02-03", "score": 0.5077806115150452, "sibling_score": 0.5077806115150452, "answer_score": null, "sibling_qid": "KOL-2019-10-1492-Q012", "sibling_text": "ig why taken from boiler not from main engine", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Compare a boiler-flue inert-gas system with a dedicated inert-gas generator and explain why suitable boiler flue gas—not main-engine exhaust—is normally used.", "cross_family": true } ] }, { "qid": "KOL-2025-03-1972-Q004", "text": "Reverse osmosis process", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "KOL-2025-03-1972", "tray": "review", "candidates": [ { "answer_id": "FWG-RO-006", "score": 0.668716549873352, "sibling_score": 0.668716549873352, "answer_score": 0.573540312051773, "sibling_qid": "KOC-2026-08-2117-Q001", "sibling_text": "reverse osmosis", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Explain reverse osmosis — the principle and flow, pre- and post-treatment, and what chemical is dosed before the RO.", "cross_family": true }, { "answer_id": "RVSG-213-001", "score": 0.6053470373153687, "sibling_score": 0.6053470373153687, "answer_score": null, "sibling_qid": "KOL-2022-10-1713-Q005", "sibling_text": "rotary vane system and vane material rao difference bw osmosis n reverse osmosis", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Construction, main parts, materials & vane fitment", "cross_family": true }, { "answer_id": "REV-PROC-001", "score": 0.4840086102485657, "sibling_score": 0.4840086102485657, "answer_score": null, "sibling_qid": "KOL-2019-11-1495-Q001", "sibling_text": "reversing process mechanism", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Reversing a reversible two-stroke main engine — the principle", "cross_family": true } ] }, { "qid": "KOL-2025-03-1974-Q005", "text": "AE main bearing bolts are prone to failure what are the reasons", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE MAIN BEARING", "tid": "KOL-2025-03-1974", "tray": "new", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.6130875945091248, "sibling_score": 0.6130875945091248, "answer_score": 0.5451255887746811, "sibling_qid": "KOL-2025-11-2022-Q002", "sibling_text": "why 4 stroke engine connecting rod bolts are prone to failure what happens in case of 2 stroke engine", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "AE-CRP-007", "score": 0.5986906290054321, "sibling_score": 0.5986906290054321, "answer_score": null, "sibling_qid": "MUM-2025-12-1227-Q013", "sibling_text": "aux engine bearing nip and crush why bearing dont rotate many cross on this", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE big-end / bottom-end bearing — inspection, bedding, nip and crush", "cross_family": false }, { "answer_id": "MAIN-BRG-D-001", "score": 0.597288191318512, "sibling_score": 0.597288191318512, "answer_score": 0.5081891894340514, "sibling_qid": "MUM-2022-07-0017-Q021", "sibling_text": "reasons for main bearing damage what can be the reasons for if lo failure is not their", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main bearing damage and wear — causes, indications, effects", "cross_family": true } ] }, { "qid": "KOL-2025-03-1976-Q002", "text": "type of engine", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOL-2025-03-1976", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.7998000383377075, "sibling_score": 0.7998000383377075, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.7921890616416931, "sibling_score": 0.7921890616416931, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-001", "score": 0.45207613110542294, "sibling_score": null, "answer_score": 0.45207613110542294, "sibling_qid": "", "sibling_text": "1 turbocharger type main engine vs generator engine compressor is centrifugal in both cases only the turbine type differs large slow speed main engine axial flow turbine single stage constant pressure system", "sibling_family": "", "via": "answer_title", "answer_title": "1. Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "KOL-2025-03-1976-Q003", "text": "how crosshead and guide shoe lubrication happen", "family": "2-Stroke - Components (Other)", "subtopic": "Piston Cooling / Telescopic Pipe", "tid": "KOL-2025-03-1976", "tray": "review", "candidates": [ { "answer_id": "XHD-BRG-C-004", "score": 0.685704231262207, "sibling_score": 0.685704231262207, "answer_score": 0.47305627465248107, "sibling_qid": "KOL-2026-03-2045-Q003", "sibling_text": "crosshead bearing lubrication how guide shoes are getting lubricated", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "D. Crosshead and guide-shoe lubrication: oil path, the no-load-reversal film problem, MAN vs Sulzer", "cross_family": true }, { "answer_id": "XHD-BRG-B-007", "score": 0.6629129648208618, "sibling_score": 0.6629129648208618, "answer_score": 0.5679078996181488, "sibling_qid": "KOL-2023-09-1755-Q001", "sibling_text": "man bnw crosshead lubrication explain where lube oil should be delivered guide or shoe why lo not delivered in guide", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Guide and guide-shoe lubrication, and the oil path from sump to crosshead", "cross_family": true }, { "answer_id": "XHEAD-303-006", "score": 0.649319052696228, "sibling_score": 0.649319052696228, "answer_score": 0.5886320888996124, "sibling_qid": "MUM-2025-06-0976-Q005", "sibling_text": "crosshead lubrication and how oil is going to guide shoe", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead and guide-shoe lubrication, difficulties, telescopic pipe", "cross_family": true } ] }, { "qid": "KOL-2025-03-2765-Q005", "text": "ICCP details ?", "family": "Electrical - ICCP & Cathodic Protection", "subtopic": "ICCP", "tid": "KOL-2025-03-2765", "tray": "review", "candidates": [ { "answer_id": "ICCP-119-P01-002", "score": 0.7500332593917847, "sibling_score": 0.7500332593917847, "answer_score": 0.3851254969835281, "sibling_qid": "MUM-2026-03-2070-Q002", "sibling_text": "iccp details", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP circuit / control arrangement, construction and main components", "cross_family": false }, { "answer_id": "ICCP-119-P01-001", "score": 0.7196105122566223, "sibling_score": 0.7196105122566223, "answer_score": 0.414482569694519, "sibling_qid": "KOL-2026-07-4276-Q008", "sibling_text": "iccp in details", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP — purpose, principle and basic working", "cross_family": false }, { "answer_id": "ICCP-119-P01-003", "score": 0.35236907601356504, "sibling_score": null, "answer_score": 0.35236907601356504, "sibling_qid": "", "sibling_text": "iccp values impressed current meaning anode cathode roles and materials", "sibling_family": "", "via": "answer_title", "answer_title": "ICCP values, impressed-current meaning, anode/cathode roles and materials", "cross_family": false } ] }, { "qid": "KOL-2025-03-2770-Q005", "text": "Types of losses in induction motor ?", "family": "Electrical - Motors & Starters", "subtopic": "Rotor / Stator", "tid": "KOL-2025-03-2770", "tray": "review", "candidates": [ { "answer_id": "ROTSTAT-C-005", "score": 0.8262668251991272, "sibling_score": 0.8262668251991272, "answer_score": 0.6455108821392059, "sibling_qid": "KOL-2021-04-2445-Q003", "sibling_text": "induction motor losses all from stator to output", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Rotor/stator heating, losses & magnetic saturation", "cross_family": false }, { "answer_id": "IND-MOT-A-001", "score": 0.7635436654090881, "sibling_score": 0.7635436654090881, "answer_score": null, "sibling_qid": "KOL-2018-06-2206-Q001", "sibling_text": "losses in an induction motor how to minimize them", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "1. Working principle of a three-phase induction motor", "cross_family": false }, { "answer_id": "IM-GEN-B-002", "score": 0.7486242651939392, "sibling_score": 0.7486242651939392, "answer_score": null, "sibling_qid": "KOL-2024-11-0886-Q015", "sibling_text": "what are the losses in an induction motor and is there any way to check the amount of losses", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motors onboard and types of induction motors", "cross_family": false } ] }, { "qid": "KOL-2025-03-2771-Q002", "text": "Exia Exib ? Zener diode working and construction of circuit ?", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOL-2025-03-2771", "tray": "review", "candidates": [ { "answer_id": "EPC-P02-01", "score": 0.6673560738563538, "sibling_score": 0.6673560738563538, "answer_score": 0.5734354376792907, "sibling_qid": "MUM-2026-05-3171-Q004", "sibling_text": "ex i a b and c no of zener diodes", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a zener diode? Draw its symbol, explain its working principle, and draw and explain its characteristic curve including the zener (breakdown) voltage.", "cross_family": false }, { "answer_id": "EPC-P02-02", "score": 0.6656452417373657, "sibling_score": 0.6656452417373657, "answer_score": 0.5193111419677734, "sibling_qid": "KOL-2017-07-2136-Q001", "sibling_text": "zener diode crystel diode uses construction", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "How is a zener diode different from a normal (PN / crystal) diode — construction, behaviour, output, and use?", "cross_family": false }, { "answer_id": "EPC-P02-03", "score": 0.6531989574432373, "sibling_score": 0.6531989574432373, "answer_score": 0.5492180705070495, "sibling_qid": "KOL-2018-03-2184-Q002", "sibling_text": "zener diode where it is used diagram n explain", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Where is a zener diode used on board and why — voltage regulator, AVR, clipper — and explain one application in detail.", "cross_family": false } ] }, { "qid": "KOL-2025-03-2771-Q004", "text": "T/c rpm senor, where it is fitted, construction details?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Encoders", "tid": "KOL-2025-03-2771", "tray": "new", "candidates": [ { "answer_id": "TCS-059-P04-011", "score": 0.5157166719436646, "sibling_score": 0.5157166719436646, "answer_score": 0.427112078666687, "sibling_qid": "KOL-2025-10-2015-Q005", "sibling_text": "t c rpm how measured working principle", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharger speed (rpm) measurement", "cross_family": true }, { "answer_id": "ANG-ENC-003", "score": 0.5006778240203857, "sibling_score": 0.5006778240203857, "answer_score": null, "sibling_qid": "KOC-2026-02-2092-Q012", "sibling_text": "angle encoders what senses the rpm and direction", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Working principle: sensing crank angle, speed and direction", "cross_family": true }, { "answer_id": "EPC-P03-006", "score": 0.49904966354370117, "sibling_score": 0.49904966354370117, "answer_score": 0.40847873985767363, "sibling_qid": "KOL-2026-05-4089-Q009", "sibling_text": "how rpm indicator of turbocharger tachometer working principle", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "How does a tachometer work — working principle and location — and what is a tacho-generator?", "cross_family": false } ] }, { "qid": "KOL-2025-03-3744-Q001", "text": "While maneuvering ship hull in engine room area got hit and dented your action. Ship going for loading.", "family": "Surveys - Statutory", "subtopic": "Defects on Board / Class Action", "tid": "KOL-2025-03-3744", "tray": "review", "candidates": [ { "answer_id": "HULL-DD-006", "score": 0.6505886912345886, "sibling_score": 0.6505886912345886, "answer_score": null, "sibling_qid": "CHE-2025-07-0404-Q003", "sibling_text": "dent on your ship how to report to office", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "7. Hull damage / collision / dent reporting and shell-plating designation", "cross_family": true }, { "answer_id": "HULL-DD-003", "score": 0.6416983604431152, "sibling_score": 0.6416983604431152, "answer_score": null, "sibling_qid": "MUM-2023-06-2174-Q004", "sibling_text": "damage to weld in hull what action some more dont remember", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "3. Side-shell hole or hull breach at the waterline: emergency action and repair", "cross_family": true }, { "answer_id": "CAS-ESTOP-001", "score": 0.611459493637085, "sibling_score": 0.611459493637085, "answer_score": null, "sibling_qid": "MUM-2025-09-0481-Q019", "sibling_text": "engine room flooding what action", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Engine-room flooding / rapidly rising bilges — immediate action as 2/E", "cross_family": true } ] }, { "qid": "KOL-2025-03-3746-Q004", "text": "Turbocharger clearances", "family": "Turbocharger", "subtopic": "TC Clearances / Inspection", "tid": "KOL-2025-03-3746", "tray": "review", "candidates": [ { "answer_id": "TC-KLM-330-001", "score": 0.8050950169563293, "sibling_score": 0.8050950169563293, "answer_score": 0.5796751588582992, "sibling_qid": "KOL-2026-05-4242-Q004", "sibling_text": "all clearances in turbo charger", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "What are turbocharger K, L and M clearances, and how is each one derived?", "cross_family": false }, { "answer_id": "SHRD-440-002", "score": 0.8045920729637146, "sibling_score": 0.8045920729637146, "answer_score": null, "sibling_qid": "MUM-2026-09-3878-Q008", "sibling_text": "clearances to be measured in turbocharger of me", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "How is shroud ring clearance checked — access point and procedure?", "cross_family": false }, { "answer_id": "TURBO-CS-P03-006", "score": 0.7956021428108215, "sibling_score": 0.7956021428108215, "answer_score": 0.6223551779985428, "sibling_qid": "KOL-2019-12-3302-Q003", "sibling_text": "turbocharger clearances", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharger clearances: axial float, radial, K/L/M, effects", "cross_family": false } ] }, { "qid": "KOL-2025-03-3747-Q002", "text": "Pintle clearance and how many pintles and what is locking pintle.", "family": "2-Stroke - Operations & Casualty", "subtopic": "Casualty / Emergency Stop", "tid": "KOL-2025-03-3747", "tray": "new", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.559864342212677, "sibling_score": 0.559864342212677, "answer_score": null, "sibling_qid": "MUM-2026-05-3227-Q009", "sibling_text": "pintle clearances", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": true }, { "answer_id": "METAL-LOCK-001", "score": 0.4856058359146118, "sibling_score": 0.4856058359146118, "answer_score": null, "sibling_qid": "KOL-2018-04-1367-Q007", "sibling_text": "6 metal locking", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "What is metal locking / stitching, why use it, materials & benefits", "cross_family": true }, { "answer_id": "TR-TB-PA-005", "score": 0.4619080424308777, "sibling_score": 0.4619080424308777, "answer_score": 0.39714012295007706, "sibling_qid": "MUM-2025-12-2889-Q003", "sibling_text": "tie bolt pinch screw location", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Pinching screws: purpose, location and clearance", "cross_family": true } ] }, { "qid": "KOL-2025-03-3747-Q003", "text": "Checks in exhaust valve before fitting", "family": "2-Stroke - Operations & Casualty", "subtopic": "Casualty / Emergency Stop", "tid": "KOL-2025-03-3747", "tray": "review", "candidates": [ { "answer_id": "EXV-P02-003", "score": 0.9010161757469177, "sibling_score": 0.9010161757469177, "answer_score": 0.5254626572132111, "sibling_qid": "MUM-2026-01-2537-Q003", "sibling_text": "checks in exhaust valve before fitting", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Checks and tests after overhaul — before refitting", "cross_family": false }, { "answer_id": "EXV-P02-001", "score": 0.7366005182266235, "sibling_score": 0.7366005182266235, "answer_score": 0.5272539317607879, "sibling_qid": "KOL-2026-04-3943-Q004", "sibling_text": "exhaust valve after overhaul checks before putting back", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve overhaul & dismantling — procedure and precautions", "cross_family": true }, { "answer_id": "EXHV-080-BF37-003", "score": 0.710800290107727, "sibling_score": 0.710800290107727, "answer_score": null, "sibling_qid": "MUM-2025-02-2270-Q006", "sibling_text": "after overhauling what checks done on exhaust valve", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "What clearances are taken after overhaul, how do you check seat and spindle, and the maximum allowances?", "cross_family": true } ] }, { "qid": "KOL-2025-03-3748-Q001", "text": "Type of ships sailed", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2025-03-3748", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8040161728858948, "sibling_score": 0.8040161728858948, "answer_score": null, "sibling_qid": "MUM-2026-02-1272-Q002", "sibling_text": "type of ships sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7888457775115967, "sibling_score": 0.7888457775115967, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7683929800987244, "sibling_score": 0.7683929800987244, "answer_score": 0.5071729719638824, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "KOL-2025-03-3748-Q003", "text": "Issues with cast iron welding ?", "family": "Workshop & Welding", "subtopic": "Cast Iron Welding", "tid": "KOL-2025-03-3748", "tray": "review", "candidates": [ { "answer_id": "WELD-B-001", "score": 0.7883073687553406, "sibling_score": 0.7883073687553406, "answer_score": 0.49631781578063966, "sibling_qid": "MUM-2026-07-3727-Q007", "sibling_text": "cast iron welding difficulties", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding & crack-repair of aluminium and cast iron, including metal stitching", "cross_family": false }, { "answer_id": "LH-ELEC-006", "score": 0.5163764834403991, "sibling_score": null, "answer_score": 0.5163764834403991, "sibling_qid": "", "sibling_text": "6 how would you approach a cast iron valve repair when the examiner probes welding and low hydrogen electrodes first response replace or fit a sound same size valve a welded cast iron repair is a stop gap not equal to new if welding cast iron not a plain mild steel low hydrogen rod the high carbon makes a hard brittle cracking weld", "sibling_family": "", "via": "answer_title", "answer_title": "6. How would you approach a cast-iron valve repair when the examiner probes welding and low-hydrogen electrodes?", "cross_family": false }, { "answer_id": "WELD-PATM-011", "score": 0.4879691570997238, "sibling_score": null, "answer_score": 0.4879691570997238, "sibling_qid": "", "sibling_text": "arc welding defects porosity trapped gas lost shield damp rods dirty oily surface slag inclusion slag not chipped cleaned between passes", "sibling_family": "", "via": "answer_title", "answer_title": "Arc welding defects", "cross_family": false } ] }, { "qid": "KOL-2025-03-3749-Q001", "text": "scrap down analysis", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "LO Test / Analysis", "tid": "KOL-2025-03-3749", "tray": "new", "candidates": [ { "answer_id": "SCAV-323-P02-006", "score": 0.48682987689971924, "sibling_score": 0.48682987689971924, "answer_score": 0.32012947797775265, "sibling_qid": "MUM-2026-06-3536-Q006", "sibling_text": "scavenge drain analysis", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Scavenge drain analysis and high scavenge-drain level", "cross_family": true }, { "answer_id": "LO-TEST-P01-003", "score": 0.4852536916732788, "sibling_score": 0.4852536916732788, "answer_score": 0.2700632631778717, "sibling_qid": "KOC-2023-01-1806-Q008", "sibling_text": "lo analysis report", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Reading a shore analysis report: metals, FTIR and red flags", "cross_family": false }, { "answer_id": "FQCC-583-A-005", "score": 0.4201366901397705, "sibling_score": 0.4201366901397705, "answer_score": null, "sibling_qid": "MUM-2025-09-2411-Q005", "sibling_text": "fo analysis report all checks", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "The bunker / fuel oil analysis report — what is checked and who says so", "cross_family": true } ] }, { "qid": "KOL-2025-03-3749-Q003", "text": "Fwg checks and why not vaccuum generate", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "KOL-2025-03-3749", "tray": "new", "candidates": [ { "answer_id": "FWG-RO-003", "score": 0.5531495213508606, "sibling_score": 0.5531495213508606, "answer_score": 0.3155727878212929, "sibling_qid": "CHE-2026-05-0533-Q008", "sibling_text": "checks if fwg not getting production", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "The FWG is not producing enough water or its efficiency has dropped. Reasons, checks and action?", "cross_family": false }, { "answer_id": "FWG-RO-001", "score": 0.48642250895500183, "sibling_score": 0.48642250895500183, "answer_score": 0.320317542552948, "sibling_qid": "MUM-2023-12-2212-Q006", "sibling_text": "how to create vaccum in fwg", "sibling_family": "Fresh Water & Domestic Systems", "via": "sibling", "answer_title": "How is vacuum created in the FWG, why does it run under vacuum, and what if the vacuum will not come?", "cross_family": true }, { "answer_id": "OWS-15PPM-008", "score": 0.43077462911605835, "sibling_score": 0.43077462911605835, "answer_score": null, "sibling_qid": "MUM-2026-06-3505-Q007", "sibling_text": "ows why flush with fw", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": true } ] }, { "qid": "KOL-2025-03-3749-Q004", "text": "Hotwell oil action and most prominent areas of oil generation", "family": "2-Stroke - Operations & Casualty", "subtopic": "Oil Sheen / Hot Well", "tid": "KOL-2025-03-3749", "tray": "new", "candidates": [ { "answer_id": "CASC-COND-001", "score": 0.5696488618850708, "sibling_score": 0.5696488618850708, "answer_score": 0.3631830424070358, "sibling_qid": "MUM-2023-06-2732-Q001", "sibling_text": "oil coming into the hotwell your actions", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Oil found in the cascade tank, hotwell or observation tank — actions, tracing the source, and preventing ingress", "cross_family": true }, { "answer_id": "BCFS-001", "score": 0.5323572754859924, "sibling_score": 0.5323572754859924, "answer_score": 0.31337769627571105, "sibling_qid": "MUM-2023-03-2165-Q005", "sibling_text": "oil in hot well how to find out", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Detecting and responding to oil contamination in the hot well or cascade tank", "cross_family": true }, { "answer_id": "SMK-FUNL-BF01-004", "score": 0.42117470502853394, "sibling_score": 0.42117470502853394, "answer_score": null, "sibling_qid": "CHE-2026-09-3929-Q001", "sibling_text": "action spark in funnel ege fire", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "There are sparks from the funnel on arrival in port — what is the reason and your action?", "cross_family": false } ] }, { "qid": "KOL-2025-03-3749-Q005", "text": "Turbochargers clearances ?", "family": "Turbocharger", "subtopic": "TC Clearances / Inspection", "tid": "KOL-2025-03-3749", "tray": "review", "candidates": [ { "answer_id": "TC-KLM-330-001", "score": 0.7812737822532654, "sibling_score": 0.7812737822532654, "answer_score": 0.5589317679405212, "sibling_qid": "KOL-2026-05-4242-Q004", "sibling_text": "all clearances in turbo charger", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "What are turbocharger K, L and M clearances, and how is each one derived?", "cross_family": false }, { "answer_id": "SHRD-440-002", "score": 0.7664679884910583, "sibling_score": 0.7664679884910583, "answer_score": null, "sibling_qid": "MUM-2026-09-3878-Q008", "sibling_text": "clearances to be measured in turbocharger of me", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "How is shroud ring clearance checked — access point and procedure?", "cross_family": false }, { "answer_id": "TURBO-CS-P03-006", "score": 0.7595197558403015, "sibling_score": 0.7595197558403015, "answer_score": 0.5922700643539428, "sibling_qid": "KOL-2019-12-3302-Q003", "sibling_text": "turbocharger clearances", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharger clearances: axial float, radial, K/L/M, effects", "cross_family": false } ] }, { "qid": "KOL-2025-03-3750-Q003", "text": "Main bearing removal", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "", "tid": "KOL-2025-03-3750", "tray": "review", "candidates": [ { "answer_id": "MAIN-BRG-B-001", "score": 0.8481049537658691, "sibling_score": 0.8481049537658691, "answer_score": 0.5287339270114898, "sibling_qid": "MUM-2026-05-3195-Q005", "sibling_text": "main bearing removal explain", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you open up / remove / overhaul a main-engine main bearing?", "cross_family": false }, { "answer_id": "MN-BRG-C-001", "score": 0.8250393867492676, "sibling_score": 0.8250393867492676, "answer_score": 0.5496751606464386, "sibling_qid": "MUM-2022-10-1027-Q013", "sibling_text": "main bearing removal procedure", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Opening, removing and overhauling a main bearing", "cross_family": false }, { "answer_id": "AE-MB-001", "score": 0.8241967558860779, "sibling_score": 0.8241967558860779, "answer_score": null, "sibling_qid": "MUM-2026-09-3957-Q002", "sibling_text": "ae main bearing removal", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Removing and renewing an auxiliary-engine main bearing", "cross_family": false } ] }, { "qid": "KOL-2025-03-3754-Q001", "text": "bottom end bearing damaged, don't have spares,how to run the engine?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Bottom End Bearing", "tid": "KOL-2025-03-3754", "tray": "review", "candidates": [ { "answer_id": "BEB-C-002", "score": 0.8095729947090149, "sibling_score": 0.8095729947090149, "answer_score": 0.6139308273792267, "sibling_qid": "KOL-2020-03-3332-Q001", "sibling_text": "bottom end bearing completely damaged actions how to run engine", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bottom end bearing damaged, no spare — action to reach port without damaging the pin", "cross_family": false }, { "answer_id": "BEB-A-001", "score": 0.722054660320282, "sibling_score": 0.722054660320282, "answer_score": 0.5185789972543716, "sibling_qid": "KOL-2017-07-3074-Q002", "sibling_text": "bottom end bearing getting over heated on dismantling dark bulged patch action no spare on board", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Removing, overhauling, inspecting and refitting the bottom end bearing", "cross_family": false }, { "answer_id": "CRKPIN-P02-003", "score": 0.5599911510944366, "sibling_score": null, "answer_score": 0.5599911510944366, "sibling_qid": "", "sibling_text": "crankpin or bearing beyond repair no spare casualty action confirm it really is beyond repair before deciding pin cracked oval scored tapered beyond the maker s reclaim limit or bearing destroyed with no serviceable correctly sized spare check against the manual s limits and crack detect first make safe stop isolate and lock starting air open the unit s indicator cock turning gear engaged cooled c", "sibling_family": "", "via": "answer_title", "answer_title": "Crankpin or bearing beyond repair / no spare — casualty action", "cross_family": false } ] }, { "qid": "KOL-2025-03-3754-Q002", "text": "Boiler safety valve on your last ship? Lip clearance and how improved High lift achieved?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2025-03-3754", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.6746610999107361, "sibling_score": 0.6746610999107361, "answer_score": null, "sibling_qid": "MUM-2026-06-3405-Q017", "sibling_text": "improved high lift safety valve details", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ECON-EGB-004", "score": 0.48760169148445126, "sibling_score": null, "answer_score": 0.48760169148445126, "sibling_qid": "", "sibling_text": "safety valve setting after overhaul why set higher than the boiler setting raise pressure under steam on a calibrated gauge adjust spring compression to lift at the approved set pressure verify re seat and blowdown two valves one at a time the other gagged lock and seal surveyor witnessed values are class approved ship specific set pressure accumulation representative limit and blowdown quote the ", "sibling_family": "", "via": "answer_title", "answer_title": "Safety-valve setting after overhaul & why set higher than the boiler", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.41950782537460324, "sibling_score": null, "answer_score": 0.41950782537460324, "sibling_qid": "", "sibling_text": "the boiler accumulation of pressure test what it is why it is done how it is carried out and when purpose proves the installed relieving capacity of the safety valves against the boiler s maximum evaporation it does not prove the set pressure set up main stop and all other steam outlets shut maximum firing rate using the boiler maker s approved accumulation test mode or the ship s approved test pr", "sibling_family": "", "via": "answer_title", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": false } ] }, { "qid": "KOL-2025-03-3755-Q002", "text": "T/c clearance", "family": "Turbocharger", "subtopic": "TC Clearances / Inspection", "tid": "KOL-2025-03-3755", "tray": "review", "candidates": [ { "answer_id": "TC-KLM-330-001", "score": 0.6947709918022156, "sibling_score": 0.6947709918022156, "answer_score": null, "sibling_qid": "MUM-2026-03-2638-Q005", "sibling_text": "clearances to be taken in tc", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "What are turbocharger K, L and M clearances, and how is each one derived?", "cross_family": false }, { "answer_id": "TC-CS-P01-006", "score": 0.6364949345588684, "sibling_score": 0.6364949345588684, "answer_score": 0.2979298025369644, "sibling_qid": "KOC-2024-01-1826-Q004", "sibling_text": "t c overhaul clearance", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "F·Turbocharger overhaul and clearances (ME and AE)", "cross_family": false }, { "answer_id": "TURBO-CS-P03-006", "score": 0.6278811693191528, "sibling_score": 0.6278811693191528, "answer_score": null, "sibling_qid": "KOL-2023-05-3609-Q003", "sibling_text": "t c clearance effects", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharger clearances: axial float, radial, K/L/M, effects", "cross_family": false } ] }, { "qid": "KOL-2025-03-3756-Q002", "text": "■how do u report to company if hull damage, he wants to listen shell exp plan frame number and plate etc", "family": "Surveys - Statutory", "subtopic": "Defects on Board / Class Action", "tid": "KOL-2025-03-3756", "tray": "review", "candidates": [ { "answer_id": "ISM-AUD-P03-003", "score": 0.6847212314605713, "sibling_score": 0.6847212314605713, "answer_score": null, "sibling_qid": "MUM-2026-03-0853-Q005", "sibling_text": "hull damage has taken place how will you report to your company following sms", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "Non-conformity, major non-conformity and incident reporting under SMS", "cross_family": true }, { "answer_id": "SHELL-PLT-A-001", "score": 0.6624154448509216, "sibling_score": 0.6624154448509216, "answer_score": null, "sibling_qid": "KOC-2023-03-0152-Q016", "sibling_text": "damage to shell plate how to identify the plates told abt shell expansion plan frame number but was not satisfied with ans", "sibling_family": "", "via": "sibling", "answer_title": "The shell expansion plan, and how you identify a plate", "cross_family": false }, { "answer_id": "HULL-DD-003", "score": 0.6590508818626404, "sibling_score": 0.6590508818626404, "answer_score": null, "sibling_qid": "KOC-2021-05-1755-Q011", "sibling_text": "hull breach and what actions taken to report to company", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "3. Side-shell hole or hull breach at the waterline: emergency action and repair", "cross_family": true } ] }, { "qid": "KOL-2025-03-3758-Q001", "text": "What type of ship sailed? What kind of maintenance done? (I told DG Turbocharger Overhaul and ME Decarb)", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2025-03-3758", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P01-001", "score": 0.6905953288078308, "sibling_score": 0.6905953288078308, "answer_score": null, "sibling_qid": "MUM-2026-03-2606-Q001", "sibling_text": "type of engine and ship major maintenance done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "SB-PRG-B-001", "score": 0.6383622884750366, "sibling_score": 0.6383622884750366, "answer_score": null, "sibling_qid": "MUM-2026-06-3449-Q001", "sibling_text": "machinery you have overhauled on ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "In-situ stuffing box overhaul (piston in the engine)", "cross_family": false }, { "answer_id": "DCB-OVH-002", "score": 0.6141788363456726, "sibling_score": 0.6141788363456726, "answer_score": null, "sibling_qid": "KOC-2026-03-2008-Q001", "sibling_text": "major overhaul done on ship", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Preparing for a complete unit overhaul or unit survey", "cross_family": true } ] }, { "qid": "KOL-2025-03-3758-Q008", "text": "Cast iron welding?", "family": "Workshop & Welding", "subtopic": "Cast Iron Welding", "tid": "KOL-2025-03-3758", "tray": "review", "candidates": [ { "answer_id": "WELD-B-001", "score": 0.8306350111961365, "sibling_score": 0.8306350111961365, "answer_score": 0.548031622171402, "sibling_qid": "MUM-2026-05-3209-Q007", "sibling_text": "cast iron welding", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding & crack-repair of aluminium and cast iron, including metal stitching", "cross_family": false }, { "answer_id": "LH-ELEC-006", "score": 0.5098121583461761, "sibling_score": null, "answer_score": 0.5098121583461761, "sibling_qid": "", "sibling_text": "6 how would you approach a cast iron valve repair when the examiner probes welding and low hydrogen electrodes first response replace or fit a sound same size valve a welded cast iron repair is a stop gap not equal to new if welding cast iron not a plain mild steel low hydrogen rod the high carbon makes a hard brittle cracking weld", "sibling_family": "", "via": "answer_title", "answer_title": "6. How would you approach a cast-iron valve repair when the examiner probes welding and low-hydrogen electrodes?", "cross_family": false }, { "answer_id": "METAL-LOCK-001", "score": 0.4936324745416641, "sibling_score": null, "answer_score": 0.4936324745416641, "sibling_qid": "", "sibling_text": "what is metal locking stitching why use it materials benefits cold process zero heat applied at any stage for brittle cast iron and other castings where welding risks further cracking or a brittle heat affected zone", "sibling_family": "", "via": "answer_title", "answer_title": "What is metal locking / stitching, why use it, materials & benefits", "cross_family": false } ] }, { "qid": "KOL-2025-03-3760-Q003", "text": "Classification society name", "family": "Surveys - Statutory", "subtopic": "IACS / Classification Society", "tid": "KOL-2025-03-3760", "tray": "review", "candidates": [ { "answer_id": "CSAS-SURV-001", "score": 0.7951202392578125, "sibling_score": 0.7951202392578125, "answer_score": 0.44919993877410885, "sibling_qid": "MUM-2023-03-0088-Q008", "sibling_text": "classification society", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Certificate of class — what it is, who issues it, what class looks after", "cross_family": true }, { "answer_id": "IACS-324-002", "score": 0.743179440498352, "sibling_score": 0.743179440498352, "answer_score": 0.4426739662885666, "sibling_qid": "CHE-2025-10-0076-Q006", "sibling_text": "what is classification society it s functions", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "2. What is a classification society, why does a ship need class, and what are its functions?", "cross_family": false }, { "answer_id": "IACS-324-001", "score": 0.7249658703804016, "sibling_score": 0.7249658703804016, "answer_score": null, "sibling_qid": "CHE-2026-08-3898-Q001", "sibling_text": "iacs international classification society function", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "1. What is IACS and what are its functions?", "cross_family": false } ] }, { "qid": "KOL-2025-03-3762-Q001", "text": "M.E bottom end bearing damaged beyond repair, how to reach port.", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Bottom End Bearing", "tid": "KOL-2025-03-3762", "tray": "review", "candidates": [ { "answer_id": "BEB-C-002", "score": 0.819595992565155, "sibling_score": 0.819595992565155, "answer_score": 0.490063402056694, "sibling_qid": "KOL-2021-08-3444-Q002", "sibling_text": "bottom end bearing damaged beyond repair no spares what you will do to reach the port", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bottom end bearing damaged, no spare — action to reach port without damaging the pin", "cross_family": false }, { "answer_id": "CRKPIN-P02-003", "score": 0.7318353652954102, "sibling_score": 0.7318353652954102, "answer_score": 0.4320995897054672, "sibling_qid": "KOL-2022-07-3545-Q005", "sibling_text": "on unit crankpin bearing damage beyond repair no bearing onboard how to reach port", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankpin or bearing beyond repair / no spare — casualty action", "cross_family": true }, { "answer_id": "BEB-A-001", "score": 0.6630030274391174, "sibling_score": 0.6630030274391174, "answer_score": 0.4458087474107742, "sibling_qid": "MUM-2025-08-2350-Q001", "sibling_text": "1 if your bottom end bearing has damaged and you stop the ship and dismantle", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Removing, overhauling, inspecting and refitting the bottom end bearing", "cross_family": false } ] }, { "qid": "KOL-2025-03-3762-Q005", "text": "How to repair rudder carrier bearing, if the ship is at port.", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2025-03-3762", "tray": "review", "candidates": [ { "answer_id": "PRE-TEN-001", "score": 0.7772878408432007, "sibling_score": 0.7772878408432007, "answer_score": null, "sibling_qid": "MUM-2026-09-3907-Q001", "sibling_text": "rudder carrier bearing replacement in port", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Pre-stressing and pre-tensioning in main-engine bolting", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.6704074144363403, "sibling_score": 0.6704074144363403, "answer_score": 0.47901628017425535, "sibling_qid": "MUM-2026-06-3610-Q003", "sibling_text": "removal of rudder bearing", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "RUD-DROP-003", "score": 0.6385827660560608, "sibling_score": 0.6385827660560608, "answer_score": null, "sibling_qid": "KOL-2024-03-3677-Q002", "sibling_text": "how to check rudder drop where to fit trammel gauge rudder drop has reached its max limit and bearing white metal has gone how u ll proceed with its repair and what you ll do to bearing", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Rudder drop at the limit: the decision", "cross_family": false } ] }, { "qid": "KOL-2025-03-3763-Q002", "text": "Cast iron welding procedure, pre heating temperature ?", "family": "Workshop & Welding", "subtopic": "Cast Iron Welding", "tid": "KOL-2025-03-3763", "tray": "review", "candidates": [ { "answer_id": "WELD-B-001", "score": 0.7732571959495544, "sibling_score": 0.7732571959495544, "answer_score": 0.49008442759513854, "sibling_qid": "MUM-2026-04-2967-Q008", "sibling_text": "cast iron welding and why preheating", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding & crack-repair of aluminium and cast iron, including metal stitching", "cross_family": false }, { "answer_id": "PW-327-004", "score": 0.4492340862751007, "sibling_score": null, "answer_score": 0.4492340862751007, "sibling_qid": "", "sibling_text": "4 surface preparation before welding clean to bright metal each side of the joint rust loose mill scale paint oil grease moisture and old slag all removed edge preparation to the joint design bevel groove root face root gap deburr", "sibling_family": "", "via": "answer_title", "answer_title": "4. Surface preparation before welding", "cross_family": false }, { "answer_id": "METAL-LOCK-001", "score": 0.43437100648880006, "sibling_score": null, "answer_score": 0.43437100648880006, "sibling_qid": "", "sibling_text": "what is metal locking stitching why use it materials benefits cold process zero heat applied at any stage for brittle cast iron and other castings where welding risks further cracking or a brittle heat affected zone", "sibling_family": "", "via": "answer_title", "answer_title": "What is metal locking / stitching, why use it, materials & benefits", "cross_family": false } ] }, { "qid": "KOL-2025-03-3763-Q007", "text": "Main engine liner removal procedure? Where to fit jack. Clover leafing, location.", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "KOL-2025-03-3763", "tray": "new", "candidates": [ { "answer_id": "CYL-LINER-P03-006", "score": 0.6408510208129883, "sibling_score": 0.6408510208129883, "answer_score": null, "sibling_qid": "KOL-2017-04-1289-Q008", "sibling_text": "removing old liner procedure of main engine and checks br fitting new liner", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Fitting a new cylinder liner — checks and precautions during renewal and installation", "cross_family": false }, { "answer_id": "CYL-LINER-P03-008", "score": 0.6302455067634583, "sibling_score": 0.6302455067634583, "answer_score": 0.5145897686481475, "sibling_qid": "KOC-2026-03-2018-Q002", "sibling_text": "how will take out liner wants everything preprations ra isolations taking cylinder head stuffing box piston what all items you check after removing jacket", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Main-engine cylinder liner removal — full procedure, the lifting tool, and precautions", "cross_family": false }, { "answer_id": "MAIN-BRG-B-001", "score": 0.6106086373329163, "sibling_score": 0.6106086373329163, "answer_score": null, "sibling_qid": "KOC-2024-09-1859-Q002", "sibling_text": "how will you remove main bearing he accepted one tackle outside engine one tackle above crankcase door one tackle on opposite girder or opposite guide shoe bottom centre how many hydraulic jack s and dial gauge position also particularly asking about guide pulley position", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you open up / remove / overhaul a main-engine main bearing?", "cross_family": true } ] }, { "qid": "KOL-2025-03-3764-Q002", "text": "Cast iron welding ?", "family": "Workshop & Welding", "subtopic": "Cast Iron Welding", "tid": "KOL-2025-03-3764", "tray": "review", "candidates": [ { "answer_id": "WELD-B-001", "score": 0.8306350111961365, "sibling_score": 0.8306350111961365, "answer_score": 0.548031622171402, "sibling_qid": "MUM-2026-05-3209-Q007", "sibling_text": "cast iron welding", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding & crack-repair of aluminium and cast iron, including metal stitching", "cross_family": false }, { "answer_id": "LH-ELEC-006", "score": 0.5098121583461761, "sibling_score": null, "answer_score": 0.5098121583461761, "sibling_qid": "", "sibling_text": "6 how would you approach a cast iron valve repair when the examiner probes welding and low hydrogen electrodes first response replace or fit a sound same size valve a welded cast iron repair is a stop gap not equal to new if welding cast iron not a plain mild steel low hydrogen rod the high carbon makes a hard brittle cracking weld", "sibling_family": "", "via": "answer_title", "answer_title": "6. How would you approach a cast-iron valve repair when the examiner probes welding and low-hydrogen electrodes?", "cross_family": false }, { "answer_id": "METAL-LOCK-001", "score": 0.4936324745416641, "sibling_score": null, "answer_score": 0.4936324745416641, "sibling_qid": "", "sibling_text": "what is metal locking stitching why use it materials benefits cold process zero heat applied at any stage for brittle cast iron and other castings where welding risks further cracking or a brittle heat affected zone", "sibling_family": "", "via": "answer_title", "answer_title": "What is metal locking / stitching, why use it, materials & benefits", "cross_family": false } ] }, { "qid": "KOL-2025-03-3766-Q001", "text": "thrust bearing clearance,", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "", "tid": "KOL-2025-03-3766", "tray": "review", "candidates": [ { "answer_id": "THR-BRG-A-001", "score": 0.8357035517692566, "sibling_score": 0.8357035517692566, "answer_score": null, "sibling_qid": "KOC-2025-11-1969-Q004", "sibling_text": "thrust bearing clearance how to take", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you check, measure, limit and adjust main-engine thrust bearing clearance?", "cross_family": false }, { "answer_id": "RUN-CLR-001", "score": 0.587677377462387, "sibling_score": null, "answer_score": 0.587677377462387, "sibling_qid": "", "sibling_text": "running clearances taken from the crankcase after main engine decarbonisation bumping top clearance bottom end bearing clearance crosshead bearing clearance main bearing clearance both sides crosshead guide slipper clearance thrust clearance", "sibling_family": "", "via": "answer_title", "answer_title": "Running clearances taken from the crankcase after main-engine decarbonisation", "cross_family": false }, { "answer_id": "CXH-BRG-FINAL-1-006", "score": 0.5685998171567916, "sibling_score": null, "answer_score": 0.5685998171567916, "sibling_qid": "", "sibling_text": "crosshead guide shoe clearances how where how much piston position why clearances crosshead bearing clearance plus guide shoe clearance both sides running and thrust bearing clearance position is maker specified the aim is to put the running gear in the condition that opens the clearance at the measuring point for that design", "sibling_family": "", "via": "answer_title", "answer_title": "Crosshead & guide-shoe clearances: how, where, how much, piston position & why", "cross_family": false } ] }, { "qid": "KOL-2025-03-3767-Q002", "text": "Fitting arrangement of sump below and why below only. How will you know below leaking.", "family": "2-Stroke - Operations & Casualty", "subtopic": "Casualty / Emergency Stop", "tid": "KOL-2025-03-3767", "tray": "review", "candidates": [ { "answer_id": "LO-SUMP-004", "score": 0.8008888959884644, "sibling_score": 0.8008888959884644, "answer_score": 0.48762550354003903, "sibling_qid": "MUM-2025-03-2280-Q002", "sibling_text": "fitting arrangement of sump below and why below only how will you know below leaking", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main-engine dry sump — arrangement, why below, inspection and leak detection", "cross_family": true }, { "answer_id": "BOT-PLUG-001", "score": 0.5235325694084167, "sibling_score": 0.5235325694084167, "answer_score": null, "sibling_qid": "MUM-2024-01-0157-Q005", "sibling_text": "bottom plug reinstalled how to test its not leaking", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "How do you check the watertight integrity of a DB tank bottom plug in dry dock?", "cross_family": true }, { "answer_id": "LO-SUMP-002", "score": 0.5202412009239197, "sibling_score": 0.5202412009239197, "answer_score": 0.4065126746892929, "sibling_qid": "CHE-2026-08-0670-Q007", "sibling_text": "when ur coming to engine room finding sump level full reasons", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Main-engine LO sump level low / dropping — reasons and action", "cross_family": true } ] }, { "qid": "KOL-2025-03-3767-Q004", "text": "Holding bolt tighten procedure in deatils", "family": "2-Stroke - Operations & Casualty", "subtopic": "Casualty / Emergency Stop", "tid": "KOL-2025-03-3767", "tray": "new", "candidates": [ { "answer_id": "TBR-TT-P02-002", "score": 0.6268742084503174, "sibling_score": 0.6268742084503174, "answer_score": null, "sibling_qid": "MUM-2026-02-2548-Q003", "sibling_text": "holding down bolt tighness check", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Checking tie rod tightness / slackness — stopped and running", "cross_family": true }, { "answer_id": "TBR-TT-P02-001", "score": 0.6263868808746338, "sibling_score": 0.6263868808746338, "answer_score": null, "sibling_qid": "KOL-2023-07-3619-Q001", "sibling_text": "tie bolt tightening procedure", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Tie rod tightening / hydraulic tensioning procedure", "cross_family": true }, { "answer_id": "FB-COUP-001", "score": 0.6164117455482483, "sibling_score": 0.6164117455482483, "answer_score": null, "sibling_qid": "MUM-2026-07-3674-Q004", "sibling_text": "fitted bolts procedure for fitting", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What fitted bolts are, what they do, and where they sit onboard", "cross_family": true } ] }, { "qid": "KOL-2025-03-3768-Q001", "text": "Boiler guage glass found oil ,action", "family": "Boilers - Operations & Firing", "subtopic": "Scum / Blow Down", "tid": "KOL-2025-03-3768", "tray": "review", "candidates": [ { "answer_id": "SBD-001", "score": 0.8359252214431763, "sibling_score": 0.8359252214431763, "answer_score": 0.603882747888565, "sibling_qid": "KOL-2016-11-3017-Q005", "sibling_text": "by bnd oil in boiler gauge glass course of actions", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "You find oil in the boiler gauge glass — causes, how you identify the source, and your actions as 2/E (including if manoeuvring). What is carryover?", "cross_family": false }, { "answer_id": "BCFS-001", "score": 0.5314727187156677, "sibling_score": null, "answer_score": 0.5314727187156677, "sibling_qid": "", "sibling_text": "detecting and responding to oil contamination in the hot well or cascade tank detect oil film or sheen on the observation tank surface smell oiliness in the gauge glass oil in water monitor alarm if fitted foaming or an unstable boiler water level never let oil into the boiler it forms an insulating film on heating surfaces causing local overheating tube bulging and failure and it makes the water ", "sibling_family": "", "via": "answer_title", "answer_title": "Detecting and responding to oil contamination in the hot well or cascade tank", "cross_family": false }, { "answer_id": "BLR-GG-005", "score": 0.5282156348228454, "sibling_score": null, "answer_score": 0.5282156348228454, "sibling_qid": "", "sibling_text": "what checks are made on a gauge glass during boiler survey glass erosion etching cracks clarity renew if doubtful don t pass a marginal glass cocks steam water drain free full bore not choked prove by blow through", "sibling_family": "", "via": "answer_title", "answer_title": "What checks are made on a gauge glass during boiler survey?", "cross_family": false } ] }, { "qid": "KOL-2025-03-3768-Q007", "text": "A/e preformance by 4/e, what parameters as 2 nd engineer you will observe and how will you come to know which unit is bad", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Decarb / Balancing / High Exhaust Temperature", "tid": "KOL-2025-03-3768", "tray": "review", "candidates": [ { "answer_id": "AEDEC-291-004", "score": 0.6787219047546387, "sibling_score": 0.6787219047546387, "answer_score": 0.4758393466472626, "sibling_qid": "KOL-2019-11-3298-Q002", "sibling_text": "ae full oh carried out ae running on no load what all things u will check as 2nd eng not satisfied with answer", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "4. Checks on no-load and before taking load", "cross_family": false }, { "answer_id": "AE-HOT-BLOW-005", "score": 0.6022293567657471, "sibling_score": 0.6022293567657471, "answer_score": null, "sibling_qid": "KOL-2018-03-1361-Q007", "sibling_text": "ae one unit exhaust temp rising all unit rising why how to confirm nozzle ring is chocked there is no tc rpm monitor", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Auxiliary engine units rising — one versus all, and confirming a choked turbocharger nozzle ring", "cross_family": false }, { "answer_id": "IND-CARD-005", "score": 0.5752644538879395, "sibling_score": 0.5752644538879395, "answer_score": 0.4691005349159241, "sibling_qid": "MUM-2022-09-1022-Q002", "sibling_text": "power balancing of main engine what to do if 1 unit developing less power power card draw card basically how to find out fault with these curves", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "How is main-engine power balancing carried out, and how do card curves diagnose a low-power unit?", "cross_family": true } ] }, { "qid": "KOL-2025-03-3768-Q008", "text": "boiler guage glass found oil action?", "family": "Boilers - Operations & Firing", "subtopic": "Scum / Blow Down", "tid": "KOL-2025-03-3768", "tray": "review", "candidates": [ { "answer_id": "SBD-001", "score": 0.8361464142799377, "sibling_score": 0.8361464142799377, "answer_score": 0.6037946939468384, "sibling_qid": "KOL-2016-11-3017-Q005", "sibling_text": "by bnd oil in boiler gauge glass course of actions", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "You find oil in the boiler gauge glass — causes, how you identify the source, and your actions as 2/E (including if manoeuvring). What is carryover?", "cross_family": false }, { "answer_id": "BCFS-001", "score": 0.5312091648578644, "sibling_score": null, "answer_score": 0.5312091648578644, "sibling_qid": "", "sibling_text": "detecting and responding to oil contamination in the hot well or cascade tank detect oil film or sheen on the observation tank surface smell oiliness in the gauge glass oil in water monitor alarm if fitted foaming or an unstable boiler water level never let oil into the boiler it forms an insulating film on heating surfaces causing local overheating tube bulging and failure and it makes the water ", "sibling_family": "", "via": "answer_title", "answer_title": "Detecting and responding to oil contamination in the hot well or cascade tank", "cross_family": false }, { "answer_id": "BLR-GG-005", "score": 0.5284259915351868, "sibling_score": null, "answer_score": 0.5284259915351868, "sibling_qid": "", "sibling_text": "what checks are made on a gauge glass during boiler survey glass erosion etching cracks clarity renew if doubtful don t pass a marginal glass cocks steam water drain free full bore not choked prove by blow through", "sibling_family": "", "via": "answer_title", "answer_title": "What checks are made on a gauge glass during boiler survey?", "cross_family": false } ] }, { "qid": "KOL-2025-03-3769-Q001", "text": "1- pistons top land weardown measurement? Name the template 2- pistons lubrication in 2strock engine? 3- oil mist detector in main engine? 4- Temperature rise of main engine bearing, reason! Pistons temperature high reasons. 5- main bearing bottom side check", "family": "2-Stroke - Components (Other)", "subtopic": "Piston (Crown/Skirt/Inspection)", "tid": "KOL-2025-03-3769", "tray": "review", "candidates": [ { "answer_id": "PRING-B-006", "score": 0.764592707157135, "sibling_score": 0.764592707157135, "answer_score": null, "sibling_qid": "MUM-2023-09-2196-Q002", "sibling_text": "me piston check during overhaul", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "General oral questions", "cross_family": false }, { "answer_id": "PIST-CSI-B-003", "score": 0.7560721635818481, "sibling_score": 0.7560721635818481, "answer_score": null, "sibling_qid": "KOC-2026-05-0040-Q006", "sibling_text": "piston overhauling checks", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Inspecting, calibrating and gauging a removed piston", "cross_family": false }, { "answer_id": "PIST-CSI-C-001", "score": 0.746268093585968, "sibling_score": 0.746268093585968, "answer_score": null, "sibling_qid": "MUM-2026-09-3895-Q005", "sibling_text": "wear down of piston crown of ae and measuring", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston crown damage — pitting, burning, cracks and reconditioning", "cross_family": false } ] }, { "qid": "KOL-2025-03-3770-Q003", "text": "Chemical cleaning of boiler?", "family": "Boilers - Safety & Survey", "subtopic": "Hard Scale Removal", "tid": "KOL-2025-03-3770", "tray": "review", "candidates": [ { "answer_id": "BLR-CHEM-003", "score": 0.7591021656990051, "sibling_score": 0.7591021656990051, "answer_score": 0.530255264043808, "sibling_qid": "KOL-2020-02-1528-Q005", "sibling_text": "boiler water impurities chemical used", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "3. Boiler chemical dosing programme", "cross_family": false }, { "answer_id": "BWTEST-A-002", "score": 0.7570738196372986, "sibling_score": 0.7570738196372986, "answer_score": null, "sibling_qid": "KOL-2022-05-4008-Q002", "sibling_text": "composite boiler boiler water treatment chloride removal blodown procedure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What does high boiler-water chloride, salinity or TDS indicate, and what action is required?", "cross_family": false }, { "answer_id": "BW-TEST-D-001", "score": 0.7467094659805298, "sibling_score": 0.7467094659805298, "answer_score": 0.5816996902227402, "sibling_qid": "MUM-2026-07-3721-Q005", "sibling_text": "boiler water chemicals", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Boiler-water treatment — why, and the chemicals used", "cross_family": false } ] }, { "qid": "KOL-2025-03-4048-Q001", "text": "int.-Vikrant Rai Ext:-A.K Biswash Fun:-6 1 :- liner crack onboard what will do 2:- loadline survey w.r.t E/R as a 2nd engineer what will preparation carried out.", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "KOL-2025-03-4048", "tray": "new", "candidates": [ { "answer_id": "LLC-SURV-P01-001", "score": 0.6328563690185547, "sibling_score": 0.6328563690185547, "answer_score": 0.5198876976966857, "sibling_qid": "MUM-2025-05-0275-Q003", "sibling_text": "preparation for loadline survey as 2nd engg only for enginer room side", "sibling_family": "", "via": "sibling", "answer_title": "Load line survey preparation as Second Engineer: engine-room scope, machinery openings, tanks/vents, valves and overboard checks", "cross_family": false }, { "answer_id": "LLC-SURV-P02-001", "score": 0.6159814596176147, "sibling_score": 0.6159814596176147, "answer_score": null, "sibling_qid": "KOL-2021-07-3435-Q002", "sibling_text": "what all preparations done as 2nd eng for load line survey", "sibling_family": "", "via": "sibling", "answer_title": "1. Load line survey preparation: readiness, weather-tight checks and attendance", "cross_family": false }, { "answer_id": "LL-CONV-P06-001", "score": 0.6054673790931702, "sibling_score": 0.6054673790931702, "answer_score": null, "sibling_qid": "KOL-2019-07-3967-Q002", "sibling_text": "loadline survey preparation full detail he want to listen mainly corrosion at weld for all opening and engine room openings prep mine is tanker so especially he said in tanker you should check function of one main thing i said pv valve then he said to draw how pv valve is connected to deck i made diagram he want to see mainlt stub piece corrosion while pv valve pipe pass through deck", "sibling_family": "", "via": "sibling", "answer_title": "LLC-P06-01 - Ship categories and freeboard differences: Type A, Type B and practical ship cases", "cross_family": false } ] }, { "qid": "KOL-2025-03-4049-Q002", "text": "Constructional differences between category X,Y,Z Chemical tanker", "family": "MARPOL - Annex II / IBC Code", "subtopic": "Chemical Tanker Categories X/Y/Z", "tid": "KOL-2025-03-4049", "tray": "review", "candidates": [ { "answer_id": "BCH-IBC-A-001", "score": 0.7074246406555176, "sibling_score": 0.7074246406555176, "answer_score": 0.5239784061908722, "sibling_qid": "MUM-2026-07-3798-Q003", "sibling_text": "types of chemical tanker and constructional difference category of cargo", "sibling_family": "MARPOL - Annex II / IBC Code", "via": "sibling", "answer_title": "Type 1, Type 2 and Type 3 chemical tankers — the ship-type classification", "cross_family": false }, { "answer_id": "COT-03", "score": 0.6614804267883301, "sibling_score": 0.6614804267883301, "answer_score": null, "sibling_qid": "KOL-2018-08-0210-Q001", "sibling_text": "constructional difference between product and chemical tanker", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Product tanker versus chemical tanker", "cross_family": true }, { "answer_id": "COT-04", "score": 0.6536444425582886, "sibling_score": 0.6536444425582886, "answer_score": 0.515041184425354, "sibling_qid": "KOL-2024-12-0892-Q002", "sibling_text": "type of ship construction of tanks in chemical tanker and xques", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Chemical-tanker midship section and cargo-tank construction", "cross_family": true } ] }, { "qid": "KOL-2025-03-4050-Q005", "text": "Boiler carry over", "family": "Boilers - Operations & Firing", "subtopic": "Boiler Water Circulation", "tid": "KOL-2025-03-4050", "tray": "review", "candidates": [ { "answer_id": "SBD-001", "score": 0.7631472945213318, "sibling_score": 0.7631472945213318, "answer_score": null, "sibling_qid": "KOL-2023-09-1935-Q004", "sibling_text": "carryover in boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "You find oil in the boiler gauge glass — causes, how you identify the source, and your actions as 2/E (including if manoeuvring). What is carryover?", "cross_family": false }, { "answer_id": "BLR-OPS-001", "score": 0.5930827260017395, "sibling_score": 0.5930827260017395, "answer_score": null, "sibling_qid": "KOL-2019-09-1482-Q005", "sibling_text": "boiler raising from cold", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Explain the procedure for raising steam in an auxiliary boiler from cold.", "cross_family": false }, { "answer_id": "BFS-257-001", "score": 0.5924950838088989, "sibling_score": 0.5924950838088989, "answer_score": null, "sibling_qid": "KOL-2024-09-3713-Q005", "sibling_text": "boiler burner routine", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler main / pilot burner overhaul — checks and routines", "cross_family": false } ] }, { "qid": "KOL-2025-03-4050-Q006", "text": "FW generator ejector pump function", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "KOL-2025-03-4050", "tray": "new", "candidates": [ { "answer_id": "AEFP-471-008", "score": 0.5608700513839722, "sibling_score": 0.5608700513839722, "answer_score": 0.41584715247154236, "sibling_qid": "KOL-2023-11-3653-Q003", "sibling_text": "how to purge fuel pump to injector hp line in generator after overhaul did not accept pushing rack and blow thru", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "How do you purge the AE fuel-pump-to-injector HP pipe after an injector routine or overhaul?", "cross_family": true }, { "answer_id": "ALT-GEN-P03-002", "score": 0.508888840675354, "sibling_score": 0.508888840675354, "answer_score": null, "sibling_qid": "CHE-2026-02-0341-Q002", "sibling_text": "ae running suddenly the ballast pump started what happened on the running generator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Generator load effects, voltage dip/droop, noise, and overheating symptoms", "cross_family": true }, { "answer_id": "FP-OVHL-001", "score": 0.5005584955215454, "sibling_score": 0.5005584955215454, "answer_score": 0.39840289652347566, "sibling_qid": "MUM-2024-11-2776-Q012", "sibling_text": "howvto overhaul bosch fuel pump of generator", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Aux-engine / Bosch jerk fuel pump — overhaul, checks, boxing up", "cross_family": true } ] }, { "qid": "KOL-2025-03-4050-Q008", "text": "3 stage air compressor what is compression ratio", "family": "Air Compressor", "subtopic": "Reciprocating Compressor", "tid": "KOL-2025-03-4050", "tray": "review", "candidates": [ { "answer_id": "AC-STAGE-002", "score": 0.7707712054252625, "sibling_score": 0.7707712054252625, "answer_score": 0.4668973624706268, "sibling_qid": "KOL-2021-11-1645-Q003", "sibling_text": "in three stage air compressor wht is the compression ration", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Intermediate pressure / pressure ratio for minimum work", "cross_family": false }, { "answer_id": "AC-STAGE-001", "score": 0.6420055031776428, "sibling_score": 0.6420055031776428, "answer_score": 0.45897676348686217, "sibling_qid": "KOL-2017-12-1333-Q003", "sibling_text": "why compressor works in stages relation between each stages", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Why multistage compression — advantages over single-stage", "cross_family": false }, { "answer_id": "ACSS-003", "score": 0.617217481136322, "sibling_score": 0.617217481136322, "answer_score": 0.48769015073776245, "sibling_qid": "MUM-2025-01-1099-Q004", "sibling_text": "in 3 stage air cooled air compressor for me how it works what is the setting of relief valves in each stage if it is air cooled what is the provision there how cooling takes place", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Multistage working, cooling, stage arrangement and stage faults", "cross_family": false } ] }, { "qid": "KOL-2025-04-0929-Q004", "text": "DMLC part 1", "family": "MLC", "subtopic": "MLC / DMLC / Work-Rest", "tid": "KOL-2025-04-0929", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.6552230715751648, "sibling_score": 0.6552230715751648, "answer_score": 0.3157062619924545, "sibling_qid": "KOC-2025-10-2080-Q013", "sibling_text": "dmlc part 1 and part", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "DCP-PPC-003", "score": 0.23739013373851775, "sibling_score": null, "answer_score": 0.23739013373851775, "sibling_qid": "", "sibling_text": "c3 dcp general working advantages disadvantages common issues", "sibling_family": "", "via": "answer_title", "answer_title": "C3 — DCP — General Working, Advantages, Disadvantages & Common Issues", "cross_family": false }, { "answer_id": "IND-CARD-003", "score": 0.22284319698810576, "sibling_score": null, "answer_score": 0.22284319698810576, "sibling_qid": "", "sibling_text": "how do you take indicator cards and calculate indicated power procedure blow cock through connect phased drive fit correct spring drop stylus for 1 2 cycles mep enclosed area diagram length spring scale", "sibling_family": "", "via": "answer_title", "answer_title": "How do you take indicator cards and calculate indicated power?", "cross_family": false } ] }, { "qid": "KOL-2025-04-0931-Q002", "text": "different types of rudder", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2025-04-0931", "tray": "review", "candidates": [ { "answer_id": "SPR-STERN-006", "score": 0.7296488285064697, "sibling_score": 0.7296488285064697, "answer_score": null, "sibling_qid": "MUM-2026-09-3951-Q002", "sibling_text": "types of rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Propeller types & special propulsors", "cross_family": false }, { "answer_id": "TRS-002", "score": 0.6236563324928284, "sibling_score": 0.6236563324928284, "answer_score": 0.4428116202354431, "sibling_qid": "KOC-2026-02-1103-Q008", "sibling_text": "how rudder stock and carrier bearing is attached told 2 half fitted bolts x does bearing turn with rudder i told yes then he told that there are 2 types one turn with rudder other dont turn with rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.621361494064331, "sibling_score": 0.621361494064331, "answer_score": null, "sibling_qid": "CHE-2026-05-0635-Q004", "sibling_text": "how wil you identify the rudder type jus looking at diagram or jus by looking at it", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false } ] }, { "qid": "KOL-2025-04-0931-Q008", "text": "audit and survey", "family": "Surveys - Statutory", "subtopic": "Audit vs Survey", "tid": "KOL-2025-04-0931", "tray": "review", "candidates": [ { "answer_id": "AUDIT-IE-004", "score": 0.7213360071182251, "sibling_score": 0.7213360071182251, "answer_score": 0.43703446090221404, "sibling_qid": "KOC-2024-10-0437-Q006", "sibling_text": "audit and survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Difference between audit and survey", "cross_family": false }, { "answer_id": "SVY-SCOPE-003", "score": 0.581593930721283, "sibling_score": 0.581593930721283, "answer_score": null, "sibling_qid": "MUM-2023-01-2161-Q007", "sibling_text": "periodical survey and annual survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the difference between a periodical survey and an annual survey?", "cross_family": false }, { "answer_id": "ISM-AUDIT-P01-002", "score": 0.5785118341445923, "sibling_score": 0.5785118341445923, "answer_score": null, "sibling_qid": "KOC-2023-12-0253-Q003", "sibling_text": "what are the audits carried in ism survey", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM/SMS audits and verifications — types, who conducts them, intervals and validity", "cross_family": true } ] }, { "qid": "KOL-2025-04-0931-Q011", "text": "Life boat lowering and manoeuvring was not able to be done due to some reasons andPSC inspector comes onboard what will be his action ?", "family": "Surveys - Statutory", "subtopic": "Detention / Clear Ground", "tid": "KOL-2025-04-0931", "tray": "review", "candidates": [ { "answer_id": "PSC-RO-P02-006", "score": 0.6506049036979675, "sibling_score": 0.6506049036979675, "answer_score": null, "sibling_qid": "KOL-2017-07-0102-Q001", "sibling_text": "psc inspection of lifeboat bilge pump", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What does a PSC inspection check on board?", "cross_family": false }, { "answer_id": "LB-SURV-C-009", "score": 0.6459636092185974, "sibling_score": 0.6459636092185974, "answer_score": 0.5348302185535431, "sibling_qid": "KOL-2020-10-0432-Q004", "sibling_text": "before psc audit checks on life boat", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "PSC inspection of the lifeboat / LSA — what is checked, common deficiencies", "cross_family": true }, { "answer_id": "DRG-B-011", "score": 0.6410872340202332, "sibling_score": 0.6410872340202332, "answer_score": null, "sibling_qid": "KOL-2022-08-0670-Q005", "sibling_text": "what inspection will u do in lowering mechanism of lifeboat", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lowering mechanism — inspection and checks as 2/E", "cross_family": true } ] }, { "qid": "KOL-2025-04-0932-Q001", "text": "Container ship cargo hold construction", "family": "", "subtopic": "Container Stability", "tid": "KOL-2025-04-0932", "tray": "review", "candidates": [ { "answer_id": "DBTB-A-004", "score": 0.7265032529830933, "sibling_score": 0.7265032529830933, "answer_score": 0.5777144134044647, "sibling_qid": "KOL-2017-06-0094-Q008", "sibling_text": "container ship construction n torsional box", "sibling_family": "", "via": "sibling", "answer_title": "Torsion box: construction and arrangement in a container ship", "cross_family": false }, { "answer_id": "SHIPTYPE-BTC-001", "score": 0.720784068107605, "sibling_score": 0.720784068107605, "answer_score": 0.625602889060974, "sibling_qid": "KOC-2025-11-0721-Q013", "sibling_text": "container ship special constructional features", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Container ship construction — cross-section, framing and special structural features", "cross_family": false }, { "answer_id": "PPS-230-005", "score": 0.7164096236228943, "sibling_score": 0.7164096236228943, "answer_score": null, "sibling_qid": "CHE-2025-08-0014-Q001", "sibling_text": "container ship forward strengthening arrangement", "sibling_family": "", "via": "sibling", "answer_title": "Panting and pounding arrangements: extent and alternative members", "cross_family": false } ] }, { "qid": "KOL-2025-04-0932-Q005", "text": "clear ground ?", "family": "Surveys - Statutory", "subtopic": "Detention / Clear Ground", "tid": "KOL-2025-04-0932", "tray": "review", "candidates": [ { "answer_id": "DCG-001", "score": 0.7415053248405457, "sibling_score": 0.7415053248405457, "answer_score": null, "sibling_qid": "KOL-2026-05-4216-Q004", "sibling_text": "clear ground", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is meant by \"clear grounds\", under PSC and under SOLAS? Give examples and state the conditions.", "cross_family": false }, { "answer_id": "DCG-003", "score": 0.6690189838409424, "sibling_score": 0.6690189838409424, "answer_score": null, "sibling_qid": "KOL-2023-09-0767-Q005", "sibling_text": "clear ground give any example of clear ground code", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the PSC deficiency code, which code leads to a detainable deficiency, and can you give an example of a \"clear-ground code\"?", "cross_family": false }, { "answer_id": "DCG-004", "score": 0.5933825373649597, "sibling_score": 0.5933825373649597, "answer_score": null, "sibling_qid": "KOL-2025-08-1020-Q010", "sibling_text": "clear ground nc mnc action", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the relationship between clear grounds, NC and MNC, and what action follows?", "cross_family": false } ] }, { "qid": "KOL-2025-04-0933-Q003", "text": "What dobu know about explosive meter?", "family": "Risk & Safety Management", "subtopic": "Enclosed Space Entry", "tid": "KOL-2025-04-0933", "tray": "review", "candidates": [ { "answer_id": "GAS-DET-008", "score": 0.6859061121940613, "sibling_score": 0.6859061121940613, "answer_score": 0.46478042006492615, "sibling_qid": "CHE-2026-02-0475-Q006", "sibling_text": "explosive meter working", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "Explosimeter: construction, working, calibration, gases detected", "cross_family": false }, { "answer_id": "ESE-P01-009", "score": 0.624372661113739, "sibling_score": 0.624372661113739, "answer_score": null, "sibling_qid": "KOL-2025-09-1051-Q007", "sibling_text": "in what atmosphere explosion meter will not work what is the other name of explosion meter", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "Atmosphere checks, gases to test and safe entry limits", "cross_family": false }, { "answer_id": "ESE-P02-003", "score": 0.595945417881012, "sibling_score": 0.595945417881012, "answer_score": 0.39419325441122055, "sibling_qid": "KOL-2025-03-0915-Q005", "sibling_text": "explosimeter will not give accurate reading in which atmosphere", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "ESE-P02-03. Explosimeter (catalytic detector): where it reads wrong", "cross_family": false } ] }, { "qid": "KOL-2025-04-1978-Q002", "text": "Boiler safety v/v dia, type of safety valve, diff b/w high lift and improved high lift safety v/v", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2025-04-1978", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.797181248664856, "sibling_score": 0.797181248664856, "answer_score": null, "sibling_qid": "KOL-2021-08-1614-Q006", "sibling_text": "boiler survey interval types of safety valves improved high lift safety valve in detail", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACRV-005", "score": 0.7110482454299927, "sibling_score": 0.7110482454299927, "answer_score": 0.4990600526332855, "sibling_qid": "MUM-2025-07-1140-Q007", "sibling_text": "q difference between safety valve and relief valve boiler all safety devices", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": false }, { "answer_id": "BLR-STM-PR-B54-003", "score": 0.5122183918952942, "sibling_score": null, "answer_score": 0.5122183918952942, "sibling_qid": "", "sibling_text": "the boiler high pressure cut out has operated what makes it cut out what it is an independent burner shut off on pressure a protective device not part of the modulating control order of set points working pressure control band high pressure alarm high pressure cut out safety valve set pressure then the class accumulation limit above that", "sibling_family": "", "via": "answer_title", "answer_title": "The boiler high-pressure cut-out has operated — what makes it cut out", "cross_family": false } ] }, { "qid": "KOL-2025-04-2777-Q005", "text": "Exi a and EXi b ?", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOL-2025-04-2777", "tray": "new", "candidates": [ { "answer_id": "EXD-EXI-A-001", "score": 0.556647777557373, "sibling_score": 0.556647777557373, "answer_score": null, "sibling_qid": "CHE-2026-02-0335-Q007", "sibling_text": "exi and exd", "sibling_family": "", "via": "sibling", "answer_title": "Ex i (intrinsically safe) vs Ex d (flameproof / explosion-proof) — the difference", "cross_family": false }, { "answer_id": "EXD-EXI-A-002", "score": 0.5398162603378296, "sibling_score": 0.5398162603378296, "answer_score": null, "sibling_qid": "KOC-2024-10-1417-Q003", "sibling_text": "exi exd", "sibling_family": "", "via": "sibling", "answer_title": "Ex d (flameproof / explosion-proof) — construction, shipboard applications and maintenance", "cross_family": false }, { "answer_id": "EECS-003", "score": 0.5149489641189575, "sibling_score": 0.5149489641189575, "answer_score": null, "sibling_qid": "KOC-2026-08-2156-Q002", "sibling_text": "eexi and cii", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "03. Explain EEXI and CII, including how each is calculated", "cross_family": false } ] }, { "qid": "KOL-2025-04-3771-Q004", "text": "Safety valve setting ? KEY ANS : 10% of working pressure and 3% is tolerance above that 10%", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2025-04-3771", "tray": "review", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-002", "score": 0.7457453012466431, "sibling_score": 0.7457453012466431, "answer_score": null, "sibling_qid": "KOL-2026-02-3922-Q005", "sibling_text": "what is lifting of safety valve tell only within 3 percent of designated set pressure nothing else", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Acceptance limits and durations — the accumulation limit, the maximum test periods, and the action if the limit is exceeded", "cross_family": false }, { "answer_id": "ECON-EGB-004", "score": 0.6993289589881897, "sibling_score": 0.6993289589881897, "answer_score": 0.5103709816932678, "sibling_qid": "KOL-2026-09-4304-Q003", "sibling_text": "safety valve setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Safety-valve setting after overhaul & why set higher than the boiler", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.6879349946975708, "sibling_score": 0.6879349946975708, "answer_score": null, "sibling_qid": "KOL-2026-02-3913-Q004", "sibling_text": "improved high lift safety valve pressure setting 3 above designated set pressure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOL-2025-04-3771-Q006", "text": "Piston alignment ?", "family": "2-Stroke - Components (Other)", "subtopic": "Piston (Crown/Skirt/Inspection)", "tid": "KOL-2025-04-3771", "tray": "review", "candidates": [ { "answer_id": "PST-CSI-BF-010", "score": 0.8342029452323914, "sibling_score": 0.8342029452323914, "answer_score": 0.5667383730411529, "sibling_qid": "KOL-2022-05-4009-Q008", "sibling_text": "alignment of piston", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Checking piston alignment / centring in the liner, and correcting eccentricity", "cross_family": false }, { "answer_id": "PIST-CSI-B-002", "score": 0.8201794028282166, "sibling_score": 0.8201794028282166, "answer_score": 0.6078509509563446, "sibling_qid": "KOL-2021-12-3498-Q004", "sibling_text": "checks on piston alignment", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Checking and correcting piston alignment / centering in the liner", "cross_family": false }, { "answer_id": "PRING-B-006", "score": 0.7520163655281067, "sibling_score": 0.7520163655281067, "answer_score": null, "sibling_qid": "MUM-2026-03-2593-Q005", "sibling_text": "piston centering", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "General oral questions", "cross_family": false } ] }, { "qid": "KOL-2025-04-3772-Q001", "text": "While lapping boiler safety valve what you have to check?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2025-04-3772", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P01-001", "score": 0.7920721173286438, "sibling_score": 0.7920721173286438, "answer_score": null, "sibling_qid": "KOL-2026-01-3900-Q005", "sibling_text": "check on safety valve during overhaul", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-003", "score": 0.7564018368721008, "sibling_score": 0.7564018368721008, "answer_score": null, "sibling_qid": "KOL-2022-09-3574-Q003", "sibling_text": "accumulation pr test of boiler how much lift of safety v v how to check", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "The accumulation test and the safety valve — required lift, how lift and capacity are verified, and why accumulation must stay inside the limit", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.7311559319496155, "sibling_score": 0.7311559319496155, "answer_score": null, "sibling_qid": "MUM-2026-01-1242-Q010", "sibling_text": "boiler safety valve type and what is left of safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOL-2025-04-3774-Q002", "text": "Exhaust valve actuator fail, no spare beyond repair what you do.", "family": "2-Stroke - Exhaust, Valve & Starting Air", "subtopic": "Exhaust Valve", "tid": "KOL-2025-04-3774", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.7906052470207214, "sibling_score": 0.7906052470207214, "answer_score": null, "sibling_qid": "KOL-2023-12-3660-Q004", "sibling_text": "exhaust actuator roller beyond repair no spares how to run engine", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "EXV-P02-001", "score": 0.7175370454788208, "sibling_score": 0.7175370454788208, "answer_score": 0.496680822968483, "sibling_qid": "KOL-2017-12-3105-Q004", "sibling_text": "spare exhaust valve overhauling", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve overhaul & dismantling — procedure and precautions", "cross_family": false }, { "answer_id": "EXHV-297-002", "score": 0.6992070078849792, "sibling_score": 0.6992070078849792, "answer_score": 0.49223430156707765, "sibling_qid": "MUM-2023-06-2733-Q003", "sibling_text": "suppose actuater of exhaust valve is not working how will you run the engine", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Actuator parts, throttle/damper, air-spring failure & back-up", "cross_family": false } ] }, { "qid": "KOL-2025-04-3774-Q003", "text": "Oil in boiler gauge glass what action as 2E, how you scum oil, how you find out source of oil.", "family": "Boilers - Operations & Firing", "subtopic": "Scum / Blow Down", "tid": "KOL-2025-04-3774", "tray": "review", "candidates": [ { "answer_id": "SBD-001", "score": 0.7707752585411072, "sibling_score": 0.7707752585411072, "answer_score": 0.6456063330173493, "sibling_qid": "KOL-2026-03-3936-Q002", "sibling_text": "traces of oil found in boiler gauge glass how do you counteract", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "You find oil in the boiler gauge glass — causes, how you identify the source, and your actions as 2/E (including if manoeuvring). What is carryover?", "cross_family": false }, { "answer_id": "BCFS-001", "score": 0.5602705121040344, "sibling_score": null, "answer_score": 0.5602705121040344, "sibling_qid": "", "sibling_text": "detecting and responding to oil contamination in the hot well or cascade tank detect oil film or sheen on the observation tank surface smell oiliness in the gauge glass oil in water monitor alarm if fitted foaming or an unstable boiler water level never let oil into the boiler it forms an insulating film on heating surfaces causing local overheating tube bulging and failure and it makes the water ", "sibling_family": "", "via": "answer_title", "answer_title": "Detecting and responding to oil contamination in the hot well or cascade tank", "cross_family": false }, { "answer_id": "CASC-COND-001", "score": 0.5528883695602417, "sibling_score": null, "answer_score": 0.5528883695602417, "sibling_qid": "", "sibling_text": "oil found in the cascade tank hotwell or observation tank actions tracing the source and preventing ingress first action is protection not diagnosis stop feeding contaminated water change over to clean feed or feed direct bypass the cascade tank inform the chief skim off and dump the oily water do not let it reach the feed pump", "sibling_family": "", "via": "answer_title", "answer_title": "Oil found in the cascade tank, hotwell or observation tank — actions, tracing the source, and preventing ingress", "cross_family": false } ] }, { "qid": "KOL-2025-04-3775-Q001", "text": "One unit bottom end bearing damaged, no spares, you have to sail, what’s your action", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Bottom End Bearing", "tid": "KOL-2025-04-3775", "tray": "review", "candidates": [ { "answer_id": "BEB-C-002", "score": 0.800766110420227, "sibling_score": 0.800766110420227, "answer_score": 0.5295402944087982, "sibling_qid": "KOL-2026-02-3911-Q001", "sibling_text": "one unit bottom end bearing worn out no spare onboard how to proceed port", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bottom end bearing damaged, no spare — action to reach port without damaging the pin", "cross_family": false }, { "answer_id": "BEB-A-001", "score": 0.7355937957763672, "sibling_score": 0.7355937957763672, "answer_score": 0.46909967362880706, "sibling_qid": "MUM-2025-08-2350-Q001", "sibling_text": "1 if your bottom end bearing has damaged and you stop the ship and dismantle", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Removing, overhauling, inspecting and refitting the bottom end bearing", "cross_family": false }, { "answer_id": "CRKPIN-P02-003", "score": 0.7123819589614868, "sibling_score": 0.7123819589614868, "answer_score": 0.5339724272489548, "sibling_qid": "KOL-2022-07-3545-Q005", "sibling_text": "on unit crankpin bearing damage beyond repair no bearing onboard how to reach port", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankpin or bearing beyond repair / no spare — casualty action", "cross_family": true } ] }, { "qid": "KOL-2025-04-3776-Q006", "text": "Tell something about rudder carrier bearing", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2025-04-3776", "tray": "review", "candidates": [ { "answer_id": "TRS-002", "score": 0.7446591258049011, "sibling_score": 0.7446591258049011, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "PRE-TEN-001", "score": 0.7280353903770447, "sibling_score": 0.7280353903770447, "answer_score": null, "sibling_qid": "MUM-2026-06-3504-Q007", "sibling_text": "rudder carrier bearing removal procedure", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Pre-stressing and pre-tensioning in main-engine bolting", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.7019379734992981, "sibling_score": 0.7019379734992981, "answer_score": 0.47193918526172635, "sibling_qid": "CHE-2026-02-0110-Q006", "sibling_text": "how rudder weight is carried key ans i said carrier bearing how it carrying explain", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false } ] }, { "qid": "KOL-2025-05-0936-Q006", "text": "ISM code.", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOL-2025-05-0936", "tray": "review", "candidates": [ { "answer_id": "ISM-ELEM-002", "score": 0.7959063053131104, "sibling_score": 0.7959063053131104, "answer_score": 0.41637461483478544, "sibling_qid": "MUM-2026-06-3653-Q001", "sibling_text": "ism code", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the ISM Code?", "cross_family": false }, { "answer_id": "ISM-ELEM-003", "score": 0.41558131873607634, "sibling_score": null, "answer_score": 0.41558131873607634, "sibling_qid": "", "sibling_text": "elements chapters structure of the ism code part a implementation the 12 elements 1 general 1 1 definitions 1 2 objectives 1 3 application 1 4 functional requirements for an sms", "sibling_family": "", "via": "answer_title", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": false }, { "answer_id": "ISM-AUD-P02-002", "score": 0.38878943771123886, "sibling_score": null, "answer_score": 0.38878943771123886, "sibling_qid": "", "sibling_text": "ism code what it is purpose objectives and structure full name carries both limbs safe operation of ships and pollution prevention never drop the pollution half adopted by resolution a 741 18 in 1993 given legal force through solas chapter ix in force 1 july 1998 phase 1", "sibling_family": "", "via": "answer_title", "answer_title": "ISM Code — what it is, purpose, objectives and structure", "cross_family": false } ] }, { "qid": "KOL-2025-05-0936-Q007", "text": "Motor: purpose of equilising connection.", "family": "Electrical - Generator & Alternator", "subtopic": "Load Sharing Imbalance", "tid": "KOL-2025-05-0936", "tray": "new", "candidates": [ { "answer_id": "SDC-001", "score": 0.5890821218490601, "sibling_score": 0.5890821218490601, "answer_score": 0.3789700299501419, "sibling_qid": "KOC-2021-11-0036-Q013", "sibling_text": "motor connection", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Why is the alternator star connected and the motor delta connected?", "cross_family": false }, { "answer_id": "TEV-TXV-002", "score": 0.5387948155403137, "sibling_score": 0.5387948155403137, "answer_score": null, "sibling_qid": "MUM-2026-02-2926-Q002", "sibling_text": "tev connection equalising line purpose", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "TEV / TXV — purpose, construction, location and working", "cross_family": true }, { "answer_id": "LS-IMB-A-001", "score": 0.5198829770088196, "sibling_score": 0.5198829770088196, "answer_score": null, "sibling_qid": "KOL-2017-08-2147-Q004", "sibling_text": "wht is purpose of equalisin line in alternator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. 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Construction & Components", "via": "sibling", "answer_title": "The ogee ring: what it is, where it sits, its purpose, and how it's formed and connected", "cross_family": true } ] }, { "qid": "KOL-2025-05-2779-Q001", "text": "salient pole motor? What is salient?", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator / Generator", "tid": "KOL-2025-05-2779", "tray": "new", "candidates": [ { "answer_id": "SYNC-ASYNC-A-002", "score": 0.6480793356895447, "sibling_score": 0.6480793356895447, "answer_score": 0.44473533034324647, "sibling_qid": "KOL-2025-09-2856-Q004", "sibling_text": "salient pole of synchronous motor and function", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Construction and main parts of a synchronous motor", "cross_family": false }, { "answer_id": "SYNC-ASY-C-001", "score": 0.5658267140388489, "sibling_score": 0.5658267140388489, "answer_score": null, "sibling_qid": "KOC-2026-05-0028-Q013", "sibling_text": "internal synchronous motor explain both stator and rotor are stationary how the flux will cut key ans he wanted rotating magnetic field", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Working principle of a synchronous motor", "cross_family": false }, { "answer_id": "SYN-ASY-B-002", "score": 0.5392818450927734, "sibling_score": 0.5392818450927734, "answer_score": null, "sibling_qid": "KOC-2025-12-1677-Q009", "sibling_text": "slip ring and synchronous motor adv and dis", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Synchronous speed, slip relation, and speed control", "cross_family": false } ] }, { "qid": "KOL-2025-05-2779-Q006", "text": "ISM under which solas regulation? Elements of ISM Risk assessment? Unit of Risk assessment.", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOL-2025-05-2779", "tray": "new", "candidates": [ { "answer_id": "ISM-AUD-P02-005", "score": 0.6349244713783264, "sibling_score": 0.6349244713783264, "answer_score": 0.44313130974769593, "sibling_qid": "KOL-2019-10-3279-Q003", "sibling_text": "risk assessment according to ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM and maintenance: PMS, risk assessment and critical spares", "cross_family": false }, { "answer_id": "RA-MGMT-A-001", "score": 0.5987370014190674, "sibling_score": 0.5987370014190674, "answer_score": null, "sibling_qid": "KOL-2020-03-3338-Q002", "sibling_text": "risk unit of risk ism element related to risk", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "What is risk, what is hazard, and what is risk assessment?", "cross_family": true }, { "answer_id": "RISK-RA-C-001", "score": 0.5736074447631836, "sibling_score": 0.5736074447631836, "answer_score": 0.5502029776573181, "sibling_qid": "KOC-2026-03-0879-Q009", "sibling_text": "ism code risk assessment under which chapter", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "Preparing and carrying out a shipboard risk assessment", "cross_family": true } ] }, { "qid": "KOL-2025-05-2783-Q002", "text": "How is Soft starter superior over star delta?", "family": "Electrical - Motors & Starters", "subtopic": "Soft Starter", "tid": "KOL-2025-05-2783", "tray": "review", "candidates": [ { "answer_id": "SOFTSTART-P03-001", "score": 0.789635419845581, "sibling_score": 0.789635419845581, "answer_score": 0.5637580156326294, "sibling_qid": "MUM-2026-06-3636-Q001", "sibling_text": "soft starter advantage over star delta starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Star-delta starter versus soft starter", "cross_family": false }, { "answer_id": "SDST-A-001", "score": 0.6833409070968628, "sibling_score": 0.6833409070968628, "answer_score": null, "sibling_qid": "KOC-2025-03-1504-Q004", "sibling_text": "star delta starter advantages", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false }, { "answer_id": "SOFTSTART-P02-004", "score": 0.5327913492918014, "sibling_score": null, "answer_score": 0.5327913492918014, "sibling_qid": "", "sibling_text": "soft starter advantages and disadvantages adv smooth stepless acceleration reduced starting current representative 3 4 flc vs 6 8 dol actual value is set on the unit adv less supply voltage dip easier on generators less light flicker and lower nuisance trip risk", "sibling_family": "", "via": "answer_title", "answer_title": "Soft starter — advantages and disadvantages", "cross_family": false } ] }, { "qid": "KOL-2025-05-3781-Q003", "text": "Boiler safety valve setting in details", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2025-05-3781", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-001", "score": 0.8234987854957581, "sibling_score": 0.8234987854957581, "answer_score": null, "sibling_qid": "CHE-2026-05-0597-Q020", "sibling_text": "boiler safety valve how the setting is done", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.7959597706794739, "sibling_score": 0.7959597706794739, "answer_score": null, "sibling_qid": "KOC-2026-05-0034-Q010", "sibling_text": "boiler safety valve types and how safety valve is set complete procedures", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.7913866639137268, "sibling_score": 0.7913866639137268, "answer_score": null, "sibling_qid": "CHE-2026-05-0568-Q013", "sibling_text": "boiler safety valve how you confirm the proper setting of safety valve engineer observation", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false } ] }, { "qid": "KOL-2025-05-3782-Q001", "text": "Disadvantages of globe valve.", "family": "General Marine Engineering", "subtopic": "Glove Valve", "tid": "KOL-2025-05-3782", "tray": "review", "candidates": [ { "answer_id": "SDNR-SDR-001", "score": 0.8447211384773254, "sibling_score": 0.8447211384773254, "answer_score": 0.49130998849868773, "sibling_qid": "KOL-2026-07-4285-Q006", "sibling_text": "globe valve disadvantage", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "SDNR versus a plain globe valve -- telling them apart from outside, and the drawbacks of each", "cross_family": false }, { "answer_id": "GV-330-002", "score": 0.6661472916603088, "sibling_score": 0.6661472916603088, "answer_score": null, "sibling_qid": "KOL-2026-07-4246-Q005", "sibling_text": "defects in gate valve", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Gate valve overhaul, checks & the stuck / not-operating valve", "cross_family": false }, { "answer_id": "GV-330-001", "score": 0.6356837153434753, "sibling_score": 0.6356837153434753, "answer_score": null, "sibling_qid": "KOC-2026-08-2117-Q004", "sibling_text": "globe valve or gate valve draw anyone", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Draw and explain the gate valve — construction, main parts, operation & onboard use", "cross_family": false } ] }, { "qid": "KOL-2025-06-0951-Q002", "text": "Type of ships sailed", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2025-06-0951", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8047345280647278, "sibling_score": 0.8047345280647278, "answer_score": null, "sibling_qid": "MUM-2026-02-1272-Q002", "sibling_text": "type of ships sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7896885275840759, "sibling_score": 0.7896885275840759, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7689732909202576, "sibling_score": 0.7689732909202576, "answer_score": 0.5079576551914214, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "KOL-2025-06-0955-Q001", "text": "Which type of ship you sailed", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2025-06-0955", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8002550005912781, "sibling_score": 0.8002550005912781, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7992348670959473, "sibling_score": 0.7992348670959473, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.7542420029640198, "sibling_score": 0.7542420029640198, "answer_score": null, "sibling_qid": "MUM-2026-02-1280-Q001", "sibling_text": "type of ship done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false } ] }, { "qid": "KOL-2025-06-0955-Q002", "text": "Which type of cargo your ship Carry", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOL-2025-06-0955", "tray": "review", "candidates": [ { "answer_id": "ODC-008", "score": 0.7487753629684448, "sibling_score": 0.7487753629684448, "answer_score": null, "sibling_qid": "MUM-2026-03-2647-Q001", "sibling_text": "type of cargo discharge in your ship", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "Cargo-area discharge criteria for an oil tanker — outside a special area", "cross_family": false }, { "answer_id": "CHEM-PA-012", "score": 0.7431148290634155, "sibling_score": 0.7431148290634155, "answer_score": 0.5156403362751006, "sibling_qid": "CHE-2026-04-0159-Q002", "sibling_text": "categories of cargo your ship cargo", "sibling_family": "MARPOL - Annex II (NLS)", "via": "sibling", "answer_title": "Differentiating chemical tankers and finding a ship’s allowable cargo", "cross_family": true }, { "answer_id": "TKR-TYPE-004", "score": 0.7376484870910645, "sibling_score": 0.7376484870910645, "answer_score": 0.5358494251966476, "sibling_qid": "MUM-2025-09-0481-Q004", "sibling_text": "type of cargo", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "4. Tanker cargo-type classification, examples, and sweet vs sour crude", "cross_family": true } ] }, { "qid": "KOL-2025-06-0955-Q011", "text": "Oil mist detector alarm came and as 2nd eng how u will calibrate", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "OMD / Oil Mist Detector", "tid": "KOL-2025-06-0955", "tray": "review", "candidates": [ { "answer_id": "OMD-001", "score": 0.6713087558746338, "sibling_score": 0.6713087558746338, "answer_score": 0.49028536081314084, "sibling_qid": "KOL-2019-05-3241-Q002", "sibling_text": "omd alarm your action he told me as alarm limit is at a safer limit 5 lel reset the alarm and if it s gone it s gone for good we don t need to do crankcase inspections that will make you loose 2 3 hours and time charter won t be happy about any unnecessary delay", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "The OMD alarm sounds on your watch. What are your actions, the checks and crankcase inspection that follow, and what are the alarm levels?", "cross_family": false }, { "answer_id": "TPL-SENS-A-002", "score": 0.6526684165000916, "sibling_score": 0.6526684165000916, "answer_score": null, "sibling_qid": "CHE-2025-10-0304-Q009", "sibling_text": "how you will try out generator lube oil low pressure alarm and trips with the pressure calibrator", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Pressure transmitter / transducer / switch working and calibration", "cross_family": true }, { "answer_id": "OMD-003", "score": 0.6298030614852905, "sibling_score": 0.6298030614852905, "answer_score": null, "sibling_qid": "MUM-2024-08-0189-Q004", "sibling_text": "omd zero setting calibration", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Explain the OMD working principle, its types and their differences, the electrical side, and zero setting and calibration.", "cross_family": false } ] }, { "qid": "KOL-2025-06-0967-Q005", "text": "FACTOR Of Subdivision 06/12/2023 Fn - 3 Int- Srinivasan Ext- Sarkar 1.Management review 2.Angle of loll and its significan...", "family": "SOLAS", "subtopic": "Floodable Length / Permeability", "tid": "KOL-2025-06-0967", "tray": "new", "candidates": [ { "answer_id": "LOLL-P02-001", "score": 0.5176361799240112, "sibling_score": 0.5176361799240112, "answer_score": null, "sibling_qid": "MUM-2025-06-0335-Q004", "sibling_text": "factor of subdivision", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "4. Significance of angle of loll — and why it occurs", "cross_family": false }, { "answer_id": "FLP-142-P02-004", "score": 0.5093981027603149, "sibling_score": 0.5093981027603149, "answer_score": 0.36804483085870743, "sibling_qid": "KOL-2026-04-1219-Q005", "sibling_text": "what is factor of subdivision", "sibling_family": "", "via": "sibling", "answer_title": "Factor of subdivision — what it is", "cross_family": false }, { "answer_id": "FLP-142-P02-005", "score": 0.5059754848480225, "sibling_score": 0.5059754848480225, "answer_score": 0.3471306264400482, "sibling_qid": "KOL-2026-07-4150-Q003", "sibling_text": "significance of factor of subdivision", "sibling_family": "", "via": "sibling", "answer_title": "Factor of subdivision — how it is fixed (length and criterion numeral)", "cross_family": false } ] }, { "qid": "KOL-2025-06-1803-Q005", "text": "Main air compressor 500 hrs routine maintenance. 5 AE conrod check and xonrod ovality increased above limits,ur action.", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Engine Theory / Performance", "tid": "KOL-2025-06-1803", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-004", "score": 0.6635230779647827, "sibling_score": 0.6635230779647827, "answer_score": 0.5098688006401062, "sibling_qid": "KOC-2021-05-1760-Q004", "sibling_text": "connecting rod checks in auxiliary engine ans normal procedure he needs that no need to check anything on conrod bolts change it after running hours specified in manual and reason for conrod ovality is excessive lapping of serrations", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE connecting-rod inspection — ovality, trueness, serrations, action if out of limit", "cross_family": true }, { "answer_id": "CPP-POL-01", "score": 0.6511951088905334, "sibling_score": 0.6511951088905334, "answer_score": null, "sibling_qid": "CHE-2026-04-0366-Q001", "sibling_text": "at explain valve liner calibration con rod ovality how do check me performance how do fix centrifugal pump casing studd reassembly stuffing box in place overhaul explain details what and all test u do after major overhaul in auxiliary engine etc", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Why and how is a main-engine performance test prepared, taken and assessed?", "cross_family": false }, { "answer_id": "CRB-001", "score": 0.6379446983337402, "sibling_score": 0.6379446983337402, "answer_score": null, "sibling_qid": "KOC-2026-05-2129-Q009", "sibling_text": "overhaul done on ae told decarb no need explain details about ovality draw explain the points of measurement and micrometer least count", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What checks are carried out on the connecting rod at decarbonisation? Explain the ovality and trueness checks — how many readings, at which positions, with what instrument, and the permissible limit.", "cross_family": true } ] }, { "qid": "KOL-2025-06-1803-Q006", "text": "Checks on AE (on piston,piston ring,conrod,bottom end bearing etc) after decarb .", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Decarb Checks / Connecting Rod / Bottom End Bearing", "tid": "KOL-2025-06-1803", "tray": "review", "candidates": [ { "answer_id": "AEDEC-291-006", "score": 0.7500908970832825, "sibling_score": 0.7500908970832825, "answer_score": null, "sibling_qid": "MUM-2026-06-3662-Q002", "sibling_text": "3e doing decarb checks on piston", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "6. Clearances, measurements, piston checks, ovality", "cross_family": false }, { "answer_id": "AE-CRP-003", "score": 0.7450293898582458, "sibling_score": 0.7450293898582458, "answer_score": 0.5644792675971985, "sibling_qid": "KOC-2026-01-1989-Q007", "sibling_text": "what checks to be done piston of ae", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE piston, ring and groove checks; piston material", "cross_family": false }, { "answer_id": "AEDEC-291-003", "score": 0.7145389914512634, "sibling_score": 0.7145389914512634, "answer_score": null, "sibling_qid": "KOL-2020-01-3309-Q001", "sibling_text": "ae decarb checks", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "3. Pre-start checks after decarb / recommissioning", "cross_family": false } ] }, { "qid": "KOL-2025-06-1803-Q008", "text": "liner crack u dnt have spare liner?wat u will do?", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "KOL-2025-06-1803", "tray": "review", "candidates": [ { "answer_id": "CYL-LINER-P03-002", "score": 0.8054929971694946, "sibling_score": 0.8054929971694946, "answer_score": null, "sibling_qid": "MUM-2025-06-0972-Q008", "sibling_text": "liner crack u dnt have spare liner wat u will do", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Detecting and confirming a cracked or leaking liner — and pinning the unit", "cross_family": false }, { "answer_id": "CYL-LINER-P03-005", "score": 0.7265483736991882, "sibling_score": 0.7265483736991882, "answer_score": null, "sibling_qid": "MUM-2025-11-1212-Q010", "sibling_text": "if you dont have spare liner then what will you do", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Spare cylinder liner — what checks and certificates before you fit it?", "cross_family": false }, { "answer_id": "CYL-LINER-P03-004", "score": 0.7034457921981812, "sibling_score": 0.7034457921981812, "answer_score": 0.4823113620281219, "sibling_qid": "KOL-2021-12-3496-Q004", "sibling_text": "liner crack removal procedure if spare is the and what to do if no spare", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Cracked or leaking liner at sea, no spare — isolating the unit and reaching port", "cross_family": false } ] }, { "qid": "KOL-2025-06-1803-Q009", "text": "wat will u check in engine room 1 day prior bunkering as 2nd engineering?", "family": "MARPOL - General & Compliance", "subtopic": "Bunker Sample Storage", "tid": "KOL-2025-06-1803", "tray": "review", "candidates": [ { "answer_id": "BUNK-PLAN-001", "score": 0.8472329378128052, "sibling_score": 0.8472329378128052, "answer_score": null, "sibling_qid": "MUM-2025-06-0972-Q009", "sibling_text": "wat will u check in engine room 1 day prior bunkering as 2nd engineering", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Second Engineer's duties, preparation and checks for bunkering", "cross_family": false }, { "answer_id": "BUNK-PLAN-004", "score": 0.7143316864967346, "sibling_score": 0.7143316864967346, "answer_score": null, "sibling_qid": "CHE-2024-06-0397-Q001", "sibling_text": "ce not there bunker barge arrived what you will do start with sopep scrubber plug quantity check bdn flash pont density sulphur content viscosity emergency signal grade of fuel", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Bunker plan: tank selection, quantity / overflow control, calculation and procedure", "cross_family": false }, { "answer_id": "BUNK-PLAN-002", "score": 0.7027807831764221, "sibling_score": 0.7027807831764221, "answer_score": null, "sibling_qid": "KOL-2025-09-1076-Q008", "sibling_text": "as 2nd engineer u r taking round on deck during bunker what u will check key ans bunker house grounding to be checked wilden pump grounding", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Safety, environmental, electrical and deck-round precautions during bunkering", "cross_family": false } ] }, { "qid": "KOL-2025-06-1803-Q010", "text": "ME C engine how fuel injection take place?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Injection System", "tid": "KOL-2025-06-1803", "tray": "review", "candidates": [ { "answer_id": "CR-248-001", "score": 0.7442935109138489, "sibling_score": 0.7442935109138489, "answer_score": null, "sibling_qid": "MUM-2025-05-0277-Q010", "sibling_text": "how fuel injection takes place in me c engine", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "The common rail fuel injection system — layout, working sequence, rail valves, timing & quantity control", "cross_family": false }, { "answer_id": "FIS-221-002", "score": 0.7406206727027893, "sibling_score": 0.7406206727027893, "answer_score": 0.6245577424764633, "sibling_qid": "MUM-2024-10-0963-Q004", "sibling_text": "explain mec engine fuel injection", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How fuel injection takes place in an ME / ME-C / ME-B engine", "cross_family": false }, { "answer_id": "FIVA-220-002", "score": 0.699834406375885, "sibling_score": 0.699834406375885, "answer_score": null, "sibling_qid": "MUM-2024-02-1076-Q003", "sibling_text": "how fuel injection take place in me engine fiva", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "FIVA control of fuel injection — timing, quantity and actuation", "cross_family": false } ] }, { "qid": "KOL-2025-06-1980-Q007", "text": "Difference between fatigue strength and UTS ?", "family": "Workshop & Welding", "subtopic": "Welding / NDT / Heat Treatment", "tid": "KOL-2025-06-1980", "tray": "new", "candidates": [ { "answer_id": "CFF-P02-002", "score": 0.5570865273475647, "sibling_score": 0.5570865273475647, "answer_score": 0.4168552130460739, "sibling_qid": "KOL-2017-01-3030-Q001", "sibling_text": "wat is endurance strength how is it different from ultimate tensile strength", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "The S-N curve and the endurance (fatigue) limit", "cross_family": true }, { "answer_id": "CFF-P02-001", "score": 0.5211243629455566, "sibling_score": 0.5211243629455566, "answer_score": 0.4641870945692062, "sibling_qid": "MUM-2026-05-3227-Q012", "sibling_text": "and do brittle failure is a fatigue failure", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Fatigue failure — what it is and where it occurs", "cross_family": true }, { "answer_id": "MATPROP-A-004", "score": 0.49772512912750244, "sibling_score": 0.49772512912750244, "answer_score": null, "sibling_qid": "KOL-2022-07-1701-Q006", "sibling_text": "strength versus toughness", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Mechanical properties", "cross_family": true } ] }, { "qid": "KOL-2025-06-2787-Q002", "text": "ICCP ?", "family": "Electrical - ICCP & Cathodic Protection", "subtopic": "ICCP", "tid": "KOL-2025-06-2787", "tray": "review", "candidates": [ { "answer_id": "ICCP-119-P01-001", "score": 0.7969819903373718, "sibling_score": 0.7969819903373718, "answer_score": 0.4761619746685028, "sibling_qid": "MUM-2025-08-1578-Q012", "sibling_text": "iccp", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP — purpose, principle and basic working", "cross_family": false }, { "answer_id": "ICCP-119-P01-002", "score": 0.4517205715179443, "sibling_score": null, "answer_score": 0.4517205715179443, "sibling_qid": "", "sibling_text": "iccp circuit control arrangement construction and main components", "sibling_family": "", "via": "answer_title", "answer_title": "ICCP circuit / control arrangement, construction and main components", "cross_family": false }, { "answer_id": "ICCP-119-P01-003", "score": 0.39582156836986543, "sibling_score": null, "answer_score": 0.39582156836986543, "sibling_qid": "", "sibling_text": "iccp values impressed current meaning anode cathode roles and materials", "sibling_family": "", "via": "answer_title", "answer_title": "ICCP values, impressed-current meaning, anode/cathode roles and materials", "cross_family": false } ] }, { "qid": "KOL-2025-06-2787-Q006", "text": "IP protection ? what Protection on deck?", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOL-2025-06-2787", "tray": "review", "candidates": [ { "answer_id": "IP-ENCL-002", "score": 0.7680071592330933, "sibling_score": 0.7680071592330933, "answer_score": 0.42357730567455293, "sibling_qid": "MUM-2025-06-1538-Q006", "sibling_text": "ip protection what protection on deck", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Suitable IP rating by location — ER, deck, pump, generator", "cross_family": false }, { "answer_id": "FIRE-P03-06", "score": 0.5879061222076416, "sibling_score": 0.5879061222076416, "answer_score": null, "sibling_qid": "MUM-2026-05-3340-Q007", "sibling_text": "protection from fire on deck", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Structural fire protection — subdivision, decks, bulkheads and prevention of spread", "cross_family": false }, { "answer_id": "IMSP-007", "score": 0.5751838684082031, "sibling_score": 0.5751838684082031, "answer_score": null, "sibling_qid": "MUM-2023-06-1391-Q005", "sibling_text": "what protection for motor on deck", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What safeties and protections are provided in an induction motor and its starter — overload, short-circuit, thermal? What about a motor on deck, and large three-phase motors?", "cross_family": false } ] }, { "qid": "KOL-2025-06-2788-Q002", "text": "ALTERNATOR ENCLOSURE SPECIFICATIONS ?", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator / Generator", "tid": "KOL-2025-06-2788", "tray": "review", "candidates": [ { "answer_id": "ALT-GEN-P02-001", "score": 0.6888803839683533, "sibling_score": 0.6888803839683533, "answer_score": 0.482832795381546, "sibling_qid": "CHE-2026-09-3906-Q001", "sibling_text": "alternator specification", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Alternator/generator specifications, ratings and ship electrical supply details", "cross_family": false }, { "answer_id": "ALT-GEN-P04-008", "score": 0.4765474259853363, "sibling_score": null, "answer_score": 0.4765474259853363, "sibling_qid": "", "sibling_text": "alternator cooling type and leak detection cooling arrangement is maker and rating specific state it from the alternator nameplate manual common marine arrangements open air ventilation closed air circuit with air to water cooler or forced ventilation for larger ratings", "sibling_family": "", "via": "answer_title", "answer_title": "Alternator cooling type and leak detection", "cross_family": false }, { "answer_id": "BL-ALT-C-002", "score": 0.4742124259471893, "sibling_score": null, "answer_score": 0.4742124259471893, "sibling_qid": "", "sibling_text": "how to identify onboard that an alternator is brushless open the exciter non drive end cover no brushes no brush boxes or springs no slip rings no carbon dust brushless defining proof no slip rings on the main rotor a visible shaft mounted rotating rectifier diode wheel plus surge suppressor", "sibling_family": "", "via": "answer_title", "answer_title": "How to identify onboard that an alternator is brushless", "cross_family": false } ] }, { "qid": "KOL-2025-06-2799-Q005", "text": "How High voltage produced? brushless excitation ? IR measurement in high voltage,? how much megger value used ? why 5000dc why not 500 dc in", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator / Generator", "tid": "KOL-2025-06-2799", "tray": "review", "candidates": [ { "answer_id": "IRT-C-003", "score": 0.6632106900215149, "sibling_score": 0.6632106900215149, "answer_score": null, "sibling_qid": "MUM-2025-08-1573-Q011", "sibling_text": "ir testing of motor procedure max voltage of megger for hv system", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "HV vs LV megger — choosing the test voltage", "cross_family": true }, { "answer_id": "IR-TEST-D-005", "score": 0.6543161273002625, "sibling_score": 0.6543161273002625, "answer_score": null, "sibling_qid": "MUM-2022-03-1326-Q004", "sibling_text": "why multimeter can not be used of ir measurement why only 500 v dc why not 400 what is your system voltage is 1000 v ac then how much dc required for megger", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Megger test-voltage selection — why a range of voltages, and on a tanker", "cross_family": true }, { "answer_id": "IR-TEST-B-004", "score": 0.652173638343811, "sibling_score": 0.652173638343811, "answer_score": null, "sibling_qid": "MUM-2026-09-3990-Q008", "sibling_text": "how megger produce 500v dc", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "How a megger works — voltage generation, ranges, battery", "cross_family": true } ] }, { "qid": "KOL-2025-06-3784-Q005", "text": "5 Zero setting of fuel pump of helix type", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Pump Overhaul", "tid": "KOL-2025-06-3784", "tray": "review", "candidates": [ { "answer_id": "FP-OVHL-005", "score": 0.7014918923377991, "sibling_score": 0.7014918923377991, "answer_score": 0.5769593179225921, "sibling_qid": "KOL-2023-12-3662-Q005", "sibling_text": "zero setting of fuel pump m e and g e", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel pump zero setting — what it is, why, and how to set it", "cross_family": false }, { "answer_id": "COS343-003", "score": 0.5157682120800018, "sibling_score": null, "answer_score": 0.5157682120800018, "sibling_qid": "", "sibling_text": "what is the zero fuel zero delivery setting of a fuel pump and how is it done zero delivery zero fuel setting the rack index position giving no fuel delivery purpose all pumps reach zero and begin delivery together clean common stop on the handle and even load sharing", "sibling_family": "", "via": "answer_title", "answer_title": "What is the zero-fuel / zero-delivery setting of a fuel pump, and how is it done?", "cross_family": false }, { "answer_id": "AEFP-471-008", "score": 0.4370839595794678, "sibling_score": null, "answer_score": 0.4370839595794678, "sibling_qid": "", "sibling_text": "how do you purge the ae fuel pump to injector hp pipe after an injector routine or overhaul why air in the hp pipe is compressible plunger displacement is absorbed below needle opening pressure the unit cannot fire prime the lp side first booster priming pump on pump body and filters vented until bubble free", "sibling_family": "", "via": "answer_title", "answer_title": "How do you purge the AE fuel-pump-to-injector HP pipe after an injector routine or overhaul?", "cross_family": false } ] }, { "qid": "KOL-2025-06-3786-Q001", "text": "TYPE OF SHIP SAILED", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2025-06-3786", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.84583979845047, "sibling_score": 0.84583979845047, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8448489904403687, "sibling_score": 0.8448489904403687, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7927220463752747, "sibling_score": 0.7927220463752747, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "KOL-2025-06-3786-Q002", "text": "ON DECK YOU WANT TO weld cast iron how to prepare? how will you prepare and what electrode you will use?", "family": "Workshop & Welding", "subtopic": "Cast Iron Welding", "tid": "KOL-2025-06-3786", "tray": "review", "candidates": [ { "answer_id": "WELD-B-001", "score": 0.7428508400917053, "sibling_score": 0.7428508400917053, "answer_score": 0.4771548867225647, "sibling_qid": "MUM-2026-06-3641-Q001", "sibling_text": "cast iron welding which electrode", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding & crack-repair of aluminium and cast iron, including metal stitching", "cross_family": false }, { "answer_id": "WELD-B-006", "score": 0.6711379289627075, "sibling_score": 0.6711379289627075, "answer_score": 0.48553287982940674, "sibling_qid": "KOC-2025-06-1916-Q010", "sibling_text": "what welding electrodes will you use and step by step preparation for welding", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding electrodes — selection, storage and handling", "cross_family": false }, { "answer_id": "LH-ELEC-003", "score": 0.5119364976882934, "sibling_score": null, "answer_score": 0.5119364976882934, "sibling_qid": "", "sibling_text": "3 how do you select or order the correct welding electrode or rod match to base material and strength first mild steel high tensile stainless cast iron this fixes the electrode family then coating type for the duty rutile e g e6013 general basic low hydrogen e7018 crack sensitive or high tensile", "sibling_family": "", "via": "answer_title", "answer_title": "3. How do you select or order the correct welding electrode or rod?", "cross_family": false } ] }, { "qid": "KOL-2025-06-3791-Q001", "text": "Status of all examinations, written and oral. Type of engine sailed.", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOL-2025-06-3791", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.7088402509689331, "sibling_score": 0.7088402509689331, "answer_score": null, "sibling_qid": "MUM-2026-01-2903-Q002", "sibling_text": "type of engine sailed on written exam conditions", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.6652336120605469, "sibling_score": 0.6652336120605469, "answer_score": null, "sibling_qid": "CHE-2026-01-0101-Q001", "sibling_text": "types of ship done and exam status", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "DUS-P1-02", "score": 0.6512999534606934, "sibling_score": 0.6512999534606934, "answer_score": null, "sibling_qid": "KOL-2025-08-3851-Q006", "sibling_text": "drydock plans rudder checks cross questions what about other written oral exams status told waiting for naval written result to come all other paper cleared", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Plans, drawings and special tools kept ready for drydock — engine-department view", "cross_family": true } ] }, { "qid": "KOL-2025-06-3791-Q002", "text": "Main Engine Piston seized and you have to proceed to port, how to manage, how to remove con rod. MAINLY HOW TO LOCK CROSSHEAD.", "family": "2-Stroke - Components (Other)", "subtopic": "Piston (Crown/Skirt/Inspection)", "tid": "KOL-2025-06-3791", "tray": "review", "candidates": [ { "answer_id": "PIST-CSI-C-004", "score": 0.7036105990409851, "sibling_score": 0.7036105990409851, "answer_score": null, "sibling_qid": "KOL-2026-02-3913-Q002", "sibling_text": "piston seized how to proceed", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston seizure, stuck piston and emergency running to port", "cross_family": false }, { "answer_id": "PST-CSI-BF-014", "score": 0.6914037466049194, "sibling_score": 0.6914037466049194, "answer_score": null, "sibling_qid": "MUM-2021-09-1010-Q014", "sibling_text": "piston removal complete what if u dnt put liner locking tool", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Preparation and procedure for removing and overhauling a piston, and how long it takes", "cross_family": false }, { "answer_id": "PIST-CSI-C-003", "score": 0.6891310811042786, "sibling_score": 0.6891310811042786, "answer_score": null, "sibling_qid": "KOL-2018-04-1363-Q004", "sibling_text": "main engine piston removal precautions", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston removal, lifting precautions and overhaul / decarbonising", "cross_family": false } ] }, { "qid": "KOL-2025-06-3791-Q003", "text": "Type of Boiler, Type of Safety valve, Improved High Lift Safety valve overhaul and checks. How to check spindle trueness.", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2025-06-3791", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.7692949175834656, "sibling_score": 0.7692949175834656, "answer_score": null, "sibling_qid": "KOL-2021-08-1614-Q006", "sibling_text": "boiler survey interval types of safety valves improved high lift safety valve in detail", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.706057608127594, "sibling_score": 0.706057608127594, "answer_score": null, "sibling_qid": "KOL-2026-01-3900-Q005", "sibling_text": "check on safety valve during overhaul", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.6919702291488647, "sibling_score": 0.6919702291488647, "answer_score": null, "sibling_qid": "CHE-2026-05-0647-Q007", "sibling_text": "boiler safety valve maintenance", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false } ] }, { "qid": "KOL-2025-06-3791-Q004", "text": "How to set safety valve , AT WHAT PRESSURE, WHAT DO YOU MEAN BY DESIGN PRESSURE, SET PRESSURE, MAXIMUM WORKING PRESSURE.", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2025-06-3791", "tray": "review", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-002", "score": 0.7318004965782166, "sibling_score": 0.7318004965782166, "answer_score": null, "sibling_qid": "KOL-2026-02-3922-Q005", "sibling_text": "what is lifting of safety valve tell only within 3 percent of designated set pressure nothing else", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Acceptance limits and durations — the accumulation limit, the maximum test periods, and the action if the limit is exceeded", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.7138041257858276, "sibling_score": 0.7138041257858276, "answer_score": null, "sibling_qid": "CHE-2026-09-3931-Q006", "sibling_text": "boiler safety valve pressure setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "ACRV-005", "score": 0.7114779353141785, "sibling_score": 0.7114779353141785, "answer_score": null, "sibling_qid": "CHE-2026-03-0497-Q003", "sibling_text": "what is the pressure difference between two safety valve set pressure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": false } ] }, { "qid": "KOL-2025-06-3791-Q005", "text": "Rudder Carrier bearing is worn out in drydock how to repair. How to remove rudder carrier bearing.", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2025-06-3791", "tray": "review", "candidates": [ { "answer_id": "PRE-TEN-001", "score": 0.8036199808120728, "sibling_score": 0.8036199808120728, "answer_score": null, "sibling_qid": "MUM-2026-06-3504-Q007", "sibling_text": "rudder carrier bearing removal procedure", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Pre-stressing and pre-tensioning in main-engine bolting", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.7869469523429871, "sibling_score": 0.7869469523429871, "answer_score": 0.553902205824852, "sibling_qid": "MUM-2026-06-3610-Q003", "sibling_text": "removal of rudder bearing", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "RUD-DROP-003", "score": 0.6985155940055847, "sibling_score": 0.6985155940055847, "answer_score": null, "sibling_qid": "KOL-2024-03-3677-Q002", "sibling_text": "how to check rudder drop where to fit trammel gauge rudder drop has reached its max limit and bearing white metal has gone how u ll proceed with its repair and what you ll do to bearing", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Rudder drop at the limit: the decision", "cross_family": false } ] }, { "qid": "KOL-2025-06-3791-Q007", "text": "Air Compressor discharge valve overhaul. 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What is IACS and what are its functions?", "cross_family": false }, { "answer_id": "ICCP-119-P01-001", "score": 0.3260802626609802, "sibling_score": 0.3260802626609802, "answer_score": 0.2277091145515442, "sibling_qid": "MUM-2025-09-1642-Q004", "sibling_text": "function of iccp", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP — purpose, principle and basic working", "cross_family": true }, { "answer_id": "IEEC-001", "score": 0.31245875358581543, "sibling_score": 0.31245875358581543, "answer_score": null, "sibling_qid": "MUM-2022-11-2715-Q003", "sibling_text": "ieec", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Basis, requirement and prerequisites for issuing an IEEC", "cross_family": true } ] }, { "qid": "KOL-2025-07-0998-Q001", "text": "CSR , location and which regulation", "family": "Surveys - Statutory", "subtopic": "CSR / Continuous Synopsis Record", "tid": "KOL-2025-07-0998", "tray": "new", "candidates": [ { "answer_id": "CSR-585-001", "score": 0.5995521545410156, "sibling_score": 0.5995521545410156, "answer_score": 0.31250815093517303, "sibling_qid": "KOL-2026-02-1182-Q003", "sibling_text": "csr regulation", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the Continuous Synopsis Record (CSR)? Explain its purpose and requirements.", "cross_family": false }, { "answer_id": "CERT-LIST-P01-001", "score": 0.5067350268363953, "sibling_score": 0.5067350268363953, "answer_score": null, "sibling_qid": "KOL-2026-01-1159-Q006", "sibling_text": "csr and its forms", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "List the statutory certificates carried onboard a ship.", "cross_family": false }, { "answer_id": "EDG-P01-003", "score": 0.4849511384963989, "sibling_score": 0.4849511384963989, "answer_score": null, "sibling_qid": "KOC-2023-07-1269-Q007", "sibling_text": "esb location and solas regulation", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Emergency switchboard — location and the EG–board arrangement", "cross_family": true } ] }, { "qid": "KOL-2025-07-1812-Q009", "text": "Sample survey for forward part of ship. What certificates are required.", "family": "Surveys - Statutory", "subtopic": "Audit (Internal/External)", "tid": "KOL-2025-07-1812", "tray": "review", "candidates": [ { "answer_id": "CERT-LIST-P01-001", "score": 0.6770485043525696, "sibling_score": 0.6770485043525696, "answer_score": null, "sibling_qid": "MUM-2026-03-0827-Q004", "sibling_text": "certificates carried onboard ships along with conventions supporting it", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "List the statutory certificates carried onboard a ship.", "cross_family": false }, { "answer_id": "CERT-LIST-P02-001", "score": 0.6646036505699158, "sibling_score": 0.6646036505699158, "answer_score": 0.5267657846212387, "sibling_qid": "CHE-2025-08-0410-Q012", "sibling_text": "list of all certificates carried on board section wise solas marpol mlc load line all", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "SOLAS certificates carried onboard", "cross_family": false }, { "answer_id": "CERT-LIST-P03-001", "score": 0.6568477749824524, "sibling_score": 0.6568477749824524, "answer_score": 0.5186947137117386, "sibling_qid": "MUM-2025-07-0353-Q003", "sibling_text": "all certificates under marpol", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "MARPOL, AFS & annex-specific certificates", "cross_family": false } ] }, { "qid": "KOL-2025-07-1813-Q001", "text": "Construction and lubrication difference between man and sulzer liner.", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "KOL-2025-07-1813", "tray": "new", "candidates": [ { "answer_id": "XHD-BRG-B-006", "score": 0.6012538075447083, "sibling_score": 0.6012538075447083, "answer_score": 0.5102472096681595, "sibling_qid": "KOL-2022-02-1662-Q004", "sibling_text": "crosshead bearing material type of lubrication difference between man sulzer", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "MAN B&W versus Sulzer / Wärtsilä crosshead bearing and lubrication", "cross_family": true }, { "answer_id": "CXH-BRG-FINAL-1-005", "score": 0.587835431098938, "sibling_score": 0.587835431098938, "answer_score": 0.42659966349601747, "sibling_qid": "MUM-2025-08-1159-Q001", "sibling_text": "contructional and lubrication process difference between man and sulzer crosshead bearing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead lubrication: why it is uniquely difficult, MAN vs Sulzer, improvements", "cross_family": true }, { "answer_id": "XHD-BRG-C-004", "score": 0.5870299339294434, "sibling_score": 0.5870299339294434, "answer_score": null, "sibling_qid": "KOL-2025-07-1993-Q001", "sibling_text": "contructional and lubrication process difference between man and sulzer crosshead bearing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "D. Crosshead and guide-shoe lubrication: oil path, the no-load-reversal film problem, MAN vs Sulzer", "cross_family": true } ] }, { "qid": "KOL-2025-07-1813-Q007", "text": "Wartsila Air lubrication.", "family": "General Marine Engineering", "subtopic": "Shafting / Propeller / CPP", "tid": "KOL-2025-07-1813", "tray": "review", "candidates": [ { "answer_id": "EEXI-002", "score": 0.6506804823875427, "sibling_score": 0.6506804823875427, "answer_score": null, "sibling_qid": "MUM-2026-06-3506-Q005", "sibling_text": "air lubrication", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "How can the EEXI of a ship be improved or attained, and what design technologies improve energy efficiency?", "cross_family": false }, { "answer_id": "LO-TEST-P01-005", "score": 0.599804162979126, "sibling_score": 0.599804162979126, "answer_score": null, "sibling_qid": "KOL-2017-03-1846-Q004", "sibling_text": "air compressor lub oil properties", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Lube-oil properties, types and selection by duty", "cross_family": true }, { "answer_id": "RES-PROP-P01-002", "score": 0.5828173756599426, "sibling_score": 0.5828173756599426, "answer_score": null, "sibling_qid": "MUM-2024-04-0172-Q008", "sibling_text": "air hull lubrication", "sibling_family": "", "via": "sibling", "answer_title": "Resistance types and methods of reducing them", "cross_family": false } ] }, { "qid": "KOL-2025-07-1814-Q001", "text": "Type of ship & Engine.", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "KOL-2025-07-1814", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8355502486228943, "sibling_score": 0.8355502486228943, "answer_score": null, "sibling_qid": "MUM-2025-08-2357-Q001", "sibling_text": "type of ship type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.8157877326011658, "sibling_score": 0.8157877326011658, "answer_score": null, "sibling_qid": "MUM-2026-07-3668-Q004", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "AC-VE-001", "score": 0.7841073274612427, "sibling_score": 0.7841073274612427, "answer_score": null, "sibling_qid": "MUM-2026-01-2904-Q001", "sibling_text": "what type of ship engine power and nomenclature", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Volumetric efficiency: define it, and if it drops how do you improve it (with bumping clearance)?", "cross_family": false } ] }, { "qid": "KOL-2025-07-1819-Q008", "text": "Safety valve test", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2025-07-1819", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P01-001", "score": 0.706426203250885, "sibling_score": 0.706426203250885, "answer_score": null, "sibling_qid": "MUM-2026-03-2589-Q003", "sibling_text": "checks on safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-003", "score": 0.6906729340553284, "sibling_score": 0.6906729340553284, "answer_score": 0.5205728769302368, "sibling_qid": "MUM-2023-08-2191-Q004", "sibling_text": "safety valve accumulation pr test", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "The accumulation test and the safety valve — required lift, how lift and capacity are verified, and why accumulation must stay inside the limit", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-002", "score": 0.6329227685928345, "sibling_score": 0.6329227685928345, "answer_score": null, "sibling_qid": "MUM-2022-07-2694-Q001", "sibling_text": "accumulation pr test if safety valve lifts then y u want that it should not go beyond 10 like for 10 bar if it lifts at 3 of 10 bar then y it should go beyond that upto 10", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Acceptance limits and durations — the accumulation limit, the maximum test periods, and the action if the limit is exceeded", "cross_family": false } ] }, { "qid": "KOL-2025-07-1819-Q011", "text": "Refer oil charging", "family": "Refrigeration & AC", "subtopic": "Refrigeration Lubricating Oil / Flock Point / Oil Charging", "tid": "KOL-2025-07-1819", "tray": "review", "candidates": [ { "answer_id": "REEF-COMP-004", "score": 0.861552894115448, "sibling_score": 0.861552894115448, "answer_score": 0.5327117562294006, "sibling_qid": "MUM-2026-06-3494-Q007", "sibling_text": "oil charging in refer", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Charging, replenishing and draining compressor lube oil — including with no charging pump", "cross_family": false }, { "answer_id": "REEF-CHG-001", "score": 0.707696259021759, "sibling_score": 0.707696259021759, "answer_score": null, "sibling_qid": "CHE-2026-02-0471-Q001", "sibling_text": "how to charge gas in refer", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "01Charging or replenishing the refrigerant in a refrigeration / AC plant", "cross_family": false }, { "answer_id": "REEF-COMP-010", "score": 0.4550019234418869, "sibling_score": null, "answer_score": 0.4550019234418869, "sibling_qid": "", "sibling_text": "starting changing over and lubricating a reefer compressor plant after provisions and in normal running before start crankcase oil pan heater on well ahead warms the oil and drives off dissolved refrigerant preventing foaming oil loss and a low oil pressure trip check oil level and charge open suction and discharge service valves before starting never start against a closed discharge over pressure", "sibling_family": "", "via": "answer_title", "answer_title": "Starting, changing over and lubricating a reefer compressor/plant — after provisions and in normal running", "cross_family": false } ] }, { "qid": "KOL-2025-07-1820-Q006", "text": "One specific type of liner defect he asked i have not herd forgot Wait in lobby.", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOL-2025-07-1820", "tray": "new", "candidates": [ { "answer_id": "CYL-LINER-P03-002", "score": 0.5436639785766602, "sibling_score": 0.5436639785766602, "answer_score": null, "sibling_qid": "MUM-2023-06-2732-Q002", "sibling_text": "liner cracked of a particular unit how will you come to know", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Detecting and confirming a cracked or leaking liner — and pinning the unit", "cross_family": true }, { "answer_id": "CYL-LINER-P04-002", "score": 0.5242656469345093, "sibling_score": 0.5242656469345093, "answer_score": null, "sibling_qid": "KOL-2018-08-3166-Q009", "sibling_text": "then asked how liner is lifted why could it get loose after telling all points still wanted to know how it is loose", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Judging, measuring, removing & discarding a cylinder liner", "cross_family": true }, { "answer_id": "CYL-LINER-P03-003", "score": 0.5107085704803467, "sibling_score": 0.5107085704803467, "answer_score": null, "sibling_qid": "MUM-2026-06-3608-Q002", "sibling_text": "liner stuck", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Removing a stuck cylinder liner — how, and where do you jack?", "cross_family": true } ] }, { "qid": "KOL-2025-07-1989-Q001", "text": "Status of writtens and orals.", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOL-2025-07-1989", "tray": "review", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.7574568390846252, "sibling_score": 0.7574568390846252, "answer_score": null, "sibling_qid": "MUM-2026-03-1294-Q001", "sibling_text": "status of writtens and orals", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": false }, { "answer_id": "DUS-P1-02", "score": 0.4749893844127655, "sibling_score": 0.4749893844127655, "answer_score": null, "sibling_qid": "KOL-2025-08-3851-Q006", "sibling_text": "drydock plans rudder checks cross questions what about other written oral exams status told waiting for naval written result to come all other paper cleared", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Plans, drawings and special tools kept ready for drydock — engine-department view", "cross_family": true }, { "answer_id": "EXHV-P01-001", "score": 0.43905529379844666, "sibling_score": 0.43905529379844666, "answer_score": null, "sibling_qid": "KOC-2026-08-2106-Q001", "sibling_text": "status of written oral company type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": true } ] }, { "qid": "KOL-2025-07-1989-Q002", "text": "Type of ship and engine", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "KOL-2025-07-1989", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8335285782814026, "sibling_score": 0.8335285782814026, "answer_score": null, "sibling_qid": "MUM-2025-08-2357-Q001", "sibling_text": "type of ship type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.8273107409477234, "sibling_score": 0.8273107409477234, "answer_score": null, "sibling_qid": "MUM-2026-07-3668-Q004", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7620292901992798, "sibling_score": 0.7620292901992798, "answer_score": null, "sibling_qid": "KOL-2025-12-2031-Q002", "sibling_text": "type of ship and engine sailed engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "KOL-2025-07-1989-Q007", "text": "Balanced rudder, why called balanced.", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2025-07-1989", "tray": "new", "candidates": [ { "answer_id": "STEER-055-A-004", "score": 0.6098876595497131, "sibling_score": 0.6098876595497131, "answer_score": null, "sibling_qid": "KOL-2019-02-3212-Q005", "sibling_text": "rudder is taking more to come from one side to the other reasons and maintenance", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Hydraulic faults — air, sluggish response, locking, leakage", "cross_family": false }, { "answer_id": "TRS-001", "score": 0.5989430546760559, "sibling_score": 0.5989430546760559, "answer_score": null, "sibling_qid": "KOL-2019-05-3236-Q005", "sibling_text": "rudder stock twisted how will you balance it how to find changed mishsip position", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "The rudder stock is twisted — how do you proceed, recover the true midship datum, and what regulations let you proceed to the next port?", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.5758554339408875, "sibling_score": 0.5758554339408875, "answer_score": null, "sibling_qid": "MUM-2026-06-3584-Q005", "sibling_text": "what takes weight of rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false } ] }, { "qid": "KOL-2025-07-1990-Q001", "text": "Ext Mitra Sir Int Oreaon sir Type of vessel and Engine", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "KOL-2025-07-1990", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.6683607697486877, "sibling_score": 0.6683607697486877, "answer_score": null, "sibling_qid": "CHE-2026-02-0247-Q001", "sibling_text": "what type of engine vessel", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.6381210684776306, "sibling_score": 0.6381210684776306, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q001", "sibling_text": "type of ship sailed and engines details", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "BOW-THR-003", "score": 0.42192875146865844, "sibling_score": null, "answer_score": 0.42192875146865844, "sibling_qid": "", "sibling_text": "bow thruster motor type supply voltage starter connection and vfd control motor 3 phase squirrel cage induction motor robust brushless low maintenance mounted above the tunnel drives the propeller through a right angle bevel gear supply voltage is ship specific 440v lv on smaller ships 3 3kv or 6 6kv hv on larger ships bt is a major consumer hv keeps current cable and motor size down representativ", "sibling_family": "", "via": "answer_title", "answer_title": "Bow-thruster motor — type, supply voltage, starter, connection and VFD control", "cross_family": false } ] }, { "qid": "KOL-2025-07-1990-Q005", "text": "How to derate boiler?(he want to listen reduce safety valve setting )", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2025-07-1990", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-001", "score": 0.7042168974876404, "sibling_score": 0.7042168974876404, "answer_score": null, "sibling_qid": "KOC-2026-05-0003-Q005", "sibling_text": "boiler safety valve setting procedure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.6785986423492432, "sibling_score": 0.6785986423492432, "answer_score": null, "sibling_qid": "CHE-2026-05-0568-Q013", "sibling_text": "boiler safety valve how you confirm the proper setting of safety valve engineer observation", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.660311758518219, "sibling_score": 0.660311758518219, "answer_score": null, "sibling_qid": "MUM-2026-05-3274-Q007", "sibling_text": "boiler type make and rating and setting of safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOL-2025-07-1991-Q002", "text": "What all parts you can see in bed plate? Bed plate material?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Bedplate / A-Frame", "tid": "KOL-2025-07-1991", "tray": "new", "candidates": [ { "answer_id": "FWFB-P02-007", "score": 0.6403103470802307, "sibling_score": 0.6403103470802307, "answer_score": null, "sibling_qid": "MUM-2026-03-2952-Q007", "sibling_text": "what type of bedplate", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Transverse and longitudinal girders: arrangement and purpose", "cross_family": false }, { "answer_id": "CHK-330-004", "score": 0.5714845061302185, "sibling_score": 0.5714845061302185, "answer_score": 0.4159608423709869, "sibling_qid": "MUM-2026-03-1306-Q014S4", "sibling_text": "bed plate parts choking arrangement alignment of shaft intermediate shaft take out procedure", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Chocking arrangement on the main engine bedplate seating", "cross_family": false }, { "answer_id": "BED-CHOCK-001", "score": 0.5352143049240112, "sibling_score": 0.5352143049240112, "answer_score": null, "sibling_qid": "MUM-2023-08-0952-Q004", "sibling_text": "how to fix bed plate on ship", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "How is the main-engine bedplate fixed to the ship's structure?", "cross_family": false } ] }, { "qid": "KOL-2025-07-1992-Q002", "text": "Hydraulic vane pump operation", "family": "Pumps - Centrifugal & PD", "subtopic": "Positive Displacement Pump", "tid": "KOL-2025-07-1992", "tray": "review", "candidates": [ { "answer_id": "HSAP-B-001", "score": 0.6632583737373352, "sibling_score": 0.6632583737373352, "answer_score": null, "sibling_qid": "KOC-2022-01-0954-Q008", "sibling_text": "swash plate pump working", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Axial piston / swash-plate pump — construction, working, swash-plate function and maximum angle, delivery and direction control", "cross_family": false }, { "answer_id": "PCD-P05-01", "score": 0.6631636023521423, "sibling_score": 0.6631636023521423, "answer_score": 0.5157403469085693, "sibling_qid": "CHE-2025-09-0443-Q006", "sibling_text": "positive displacement pump used in hydraulic system types explain", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Positive-displacement pump — overhaul, performance, and PD pumps in hydraulic service", "cross_family": false }, { "answer_id": "HSAP-583-A-001", "score": 0.6609098315238953, "sibling_score": 0.6609098315238953, "answer_score": null, "sibling_qid": "KOL-2018-03-1360-Q004", "sibling_text": "radial piston pump working", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Hele-Shaw pump: construction and working — draw and explain", "cross_family": false } ] }, { "qid": "KOL-2025-07-1992-Q009", "text": "wire drawing effect on valve what is the phenomenon what will happen what is the reason", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2025-07-1992", "tray": "new", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.5166944861412048, "sibling_score": 0.5166944861412048, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q012", "sibling_text": "draw top part of improved high lift safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "MR-DS-PV-B-006", "score": 0.5120648145675659, "sibling_score": 0.5120648145675659, "answer_score": null, "sibling_qid": "KOC-2026-03-2095-Q006", "sibling_text": "full bore safety valve draw and explain", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "6. Deck isolating valve, deck relief/safety devices, and cargo-tank pressure", "cross_family": false }, { "answer_id": "SAV-001", "score": 0.4968727231025696, "sibling_score": 0.4968727231025696, "answer_score": null, "sibling_qid": "KOC-2025-01-1026-Q013", "sibling_text": "starting air valve drawing", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Construction and working of the main automatic starting air valve", "cross_family": true } ] }, { "qid": "KOL-2025-07-1994-Q005", "text": "What is crankshaft material of medium speed engines 7. 4.", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft Material", "tid": "KOL-2025-07-1994", "tray": "review", "candidates": [ { "answer_id": "CRANK-217-001", "score": 0.6756492853164673, "sibling_score": 0.6756492853164673, "answer_score": 0.4413305103778839, "sibling_qid": "MUM-2026-05-3266-Q006", "sibling_text": "material of crankshaft", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankshaft types and how the type is identified", "cross_family": false }, { "answer_id": "HT-A-001", "score": 0.6496047377586365, "sibling_score": 0.6496047377586365, "answer_score": null, "sibling_qid": "MUM-2026-05-3334-Q006", "sibling_text": "crankshaft material and heat treatment", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Heat treatment: what it is, the main methods, and why it is done", "cross_family": false }, { "answer_id": "CRANK-217-002", "score": 0.4578682869672775, "sibling_score": null, "answer_score": 0.4578682869672775, "sibling_qid": "", "sibling_text": "semi built crankshaft construction fitting and comparison throw two webs crankpin as one piece forged or cast steel in some designs per maker class main journals machined separately and shrink fitted into the bored webs fit made by heating the web bore expands and or chilling the journal interference grips on cooling no key no dowel", "sibling_family": "", "via": "answer_title", "answer_title": "Semi-built crankshaft: construction, fitting and comparison", "cross_family": false } ] }, { "qid": "KOL-2025-07-1994-Q006", "text": "Main Engine Bed plate function", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Bedplate / A-Frame", "tid": "KOL-2025-07-1994", "tray": "new", "candidates": [ { "answer_id": "ETP-344-P01-008", "score": 0.609283983707428, "sibling_score": 0.609283983707428, "answer_score": null, "sibling_qid": "MUM-2026-06-3538-Q009", "sibling_text": "what are the check and testing done on bed plate while running of an engine", "sibling_family": "2-Stroke - 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Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "KOL-2025-07-1996-Q004", "text": "Nip of bearing", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Bearing Clearance", "tid": "KOL-2025-07-1996", "tray": "review", "candidates": [ { "answer_id": "BRG-NOM-004", "score": 0.8120186924934387, "sibling_score": 0.8120186924934387, "answer_score": 0.4752407521009445, "sibling_qid": "MUM-2025-10-1210-Q004", "sibling_text": "nip of bearing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bearing Nip/Crush, Clearance, and How the Shell is Held", "cross_family": false }, { "answer_id": "WMAT-170-005", "score": 0.620049238204956, "sibling_score": 0.620049238204956, "answer_score": 0.43898172974586486, "sibling_qid": "MUM-2026-06-3652-Q013", "sibling_text": "bedding of bearing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bearing bedding and seating / contact assessment", "cross_family": false }, { "answer_id": "MN-BRG-C-002", "score": 0.6192479133605957, "sibling_score": 0.6192479133605957, "answer_score": null, "sibling_qid": "KOL-2022-08-3560-Q001", "sibling_text": "bedding of bearing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bedding, contact check and fitting of shells", "cross_family": false } ] }, { "qid": "KOL-2025-07-1999-Q007", "text": "nip and crush of bearing", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Bearing Clearance", "tid": "KOL-2025-07-1999", "tray": "review", "candidates": [ { "answer_id": "BRG-NOM-004", "score": 0.6994603276252747, "sibling_score": 0.6994603276252747, "answer_score": 0.5118634402751923, "sibling_qid": "MUM-2025-10-1210-Q004", "sibling_text": "nip of bearing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bearing Nip/Crush, Clearance, and How the Shell is Held", "cross_family": false }, { "answer_id": "AE-CRP-007", "score": 0.6176507472991943, "sibling_score": 0.6176507472991943, "answer_score": 0.44824061691761014, "sibling_qid": "MUM-2025-12-1227-Q013", "sibling_text": "aux engine bearing nip and crush why bearing dont rotate many cross on this", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE big-end / bottom-end bearing — inspection, bedding, nip and crush", "cross_family": true }, { "answer_id": "WMAT-170-007", "score": 0.5728207230567932, "sibling_score": 0.5728207230567932, "answer_score": null, "sibling_qid": "KOL-2022-10-1714-Q005", "sibling_text": "defects in bearing corrosion crack bulging wipe out", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Tin-oxide corrosion of white metal and its prevention", "cross_family": false } ] }, { "qid": "KOL-2025-07-2002-Q001", "text": "ig alarms and trips", "family": "Tanker - Inert Gas System", "subtopic": "IG Alarms / Trips", "tid": "KOL-2025-07-2002", "tray": "review", "candidates": [ { "answer_id": "IGAT-583-001", "score": 0.7809143662452698, "sibling_score": 0.7809143662452698, "answer_score": 0.45238578915596006, "sibling_qid": "MUM-2026-04-0929-Q002", "sibling_text": "ig alarms and trips", "sibling_family": "Tanker - Inert Gas System", "via": "sibling", "answer_title": "State all the alarms, trips and safety cut-outs provided on a tanker inert gas (IG) system.", "cross_family": false }, { "answer_id": "MR-DS-PV-B-003", "score": 0.4584426641464233, "sibling_score": null, "answer_score": 0.4584426641464233, "sibling_qid": "", "sibling_text": "3 alarms trips valves and abnormal conditions of the deck seal key seal alarm low water level audible and visual fss requirement any low low trip interlock of gas delivery is maker ship sms logic and should be quoted from the approved ig manual a low seal a lost first barrier pressure oxygen instrumentation when ig is being supplied continuously indicate and permanently record the pressure of the ", "sibling_family": "", "via": "answer_title", "answer_title": "3. Alarms, trips, valves, and abnormal conditions of the deck seal", "cross_family": false }, { "answer_id": "IGAT-583-003", "score": 0.4334269344806671, "sibling_score": null, "answer_score": 0.4334269344806671, "sibling_qid": "", "sibling_text": "what are the set values for the ig system alarms and trips ig line high low and low low pressure oxygen content pv valve and breaker pressures statutory fss code ch 15 msc 367 93 oxygen alarm in excess of 5 by volume in the delivered gas 2 2 4 5 1 1 statutory gas pressure alarm less than 100 mm water gauge 2 2 4 5 1 3", "sibling_family": "", "via": "answer_title", "answer_title": "What are the set values for the IG system alarms and trips — IG line high, low and low-low pressure, oxygen content, PV valve and breaker pressures?", "cross_family": false } ] }, { "qid": "KOL-2025-07-2003-Q001", "text": "Risk Assessment and factor of risk assessment", "family": "ISM Code", "subtopic": "Risk Assessment", "tid": "KOL-2025-07-2003", "tray": "review", "candidates": [ { "answer_id": "ISM-AUD-P02-005", "score": 0.71121746301651, "sibling_score": 0.71121746301651, "answer_score": null, "sibling_qid": "KOC-2026-09-2191-Q007", "sibling_text": "risk assessment criteria", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM and maintenance: PMS, risk assessment and critical spares", "cross_family": false }, { "answer_id": "RA-MGMT-B-001", "score": 0.6808664798736572, "sibling_score": 0.6808664798736572, "answer_score": null, "sibling_qid": "KOL-2026-03-1209-Q008", "sibling_text": "risk assessment and factors affecting risk assessment", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "How is a shipboard risk assessment prepared and carried out?", "cross_family": true }, { "answer_id": "RISK-RA-D-001", "score": 0.6661422848701477, "sibling_score": 0.6661422848701477, "answer_score": 0.5255622625350952, "sibling_qid": "KOL-2024-09-3707-Q007", "sibling_text": "risk assessment if one factor for assessment of risk is frequency", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "", "cross_family": true } ] }, { "qid": "KOL-2025-07-2003-Q005", "text": "Type of ship and specifications", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2025-07-2003", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.7857339382171631, "sibling_score": 0.7857339382171631, "answer_score": null, "sibling_qid": "MUM-2026-05-3002-Q001", "sibling_text": "type of ship and all", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7733374238014221, "sibling_score": 0.7733374238014221, "answer_score": null, "sibling_qid": "CHE-2026-04-0373-Q001S6", "sibling_text": "type of ship specification of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.7564883828163147, "sibling_score": 0.7564883828163147, "answer_score": null, "sibling_qid": "MUM-2026-04-2675-Q006S5", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false } ] }, { "qid": "KOL-2025-07-2803-Q002", "text": "Sensors in boiler combustion control, how does flow sensor works. 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ICCP & Cathodic Protection", "subtopic": "ICCP", "tid": "KOL-2025-07-2814", "tray": "review", "candidates": [ { "answer_id": "ICCP-119-P01-001", "score": 0.7969819903373718, "sibling_score": 0.7969819903373718, "answer_score": 0.4761619746685028, "sibling_qid": "MUM-2025-08-1578-Q012", "sibling_text": "iccp", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP — purpose, principle and basic working", "cross_family": false }, { "answer_id": "ICCP-119-P01-002", "score": 0.4517205715179443, "sibling_score": null, "answer_score": 0.4517205715179443, "sibling_qid": "", "sibling_text": "iccp circuit control arrangement construction and main components", "sibling_family": "", "via": "answer_title", "answer_title": "ICCP circuit / control arrangement, construction and main components", "cross_family": false }, { "answer_id": "ICCP-119-P01-003", "score": 0.39582156836986543, "sibling_score": null, "answer_score": 0.39582156836986543, "sibling_qid": "", "sibling_text": "iccp values impressed current meaning anode cathode roles and materials", "sibling_family": "", "via": "answer_title", "answer_title": "ICCP values, impressed-current meaning, anode/cathode roles and materials", "cross_family": false } ] }, { "qid": "KOL-2025-07-3810-Q001", "text": "bottom end bearing damaged, how to proceed to port ( Key point is securing of con-rod inside the engine, con-rod should be opened from bottom end bearing side only to save guard the Crank-pin and it is tied inside the engine)", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Bottom End Bearing", "tid": "KOL-2025-07-3810", "tray": "review", "candidates": [ { "answer_id": "BEB-C-002", "score": 0.8131352066993713, "sibling_score": 0.8131352066993713, "answer_score": 0.6355780124664306, "sibling_qid": "KOL-2021-12-3492-Q002", "sibling_text": "bottom bearing damaged without damaging the pin proceed to port", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bottom end bearing damaged, no spare — action to reach port without damaging the pin", "cross_family": false }, { "answer_id": "BEB-A-001", "score": 0.7607648968696594, "sibling_score": 0.7607648968696594, "answer_score": null, "sibling_qid": "MUM-2026-05-3257-Q006", "sibling_text": "how to take out connecting rod of main engine how you take out top shell of bottom end bearing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Removing, overhauling, inspecting and refitting the bottom end bearing", "cross_family": false }, { "answer_id": "MN-BRG-C-001", "score": 0.7411739230155945, "sibling_score": 0.7411739230155945, "answer_score": null, "sibling_qid": "MUM-2026-09-3927-Q007", "sibling_text": "how to remove main bearing bottom shell how to make sure crankshaft is not over stressed how to lift crankshaft", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Opening, removing and overhauling a main bearing", "cross_family": false } ] }, { "qid": "KOL-2025-07-3810-Q002", "text": "Improved high lift safety valve", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2025-07-3810", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.835677444934845, "sibling_score": 0.835677444934845, "answer_score": null, "sibling_qid": "MUM-2026-06-3405-Q017", "sibling_text": "improved high lift safety valve details", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACSS-002", "score": 0.49537171721458434, "sibling_score": null, "answer_score": 0.49537171721458434, "sibling_qid": "", "sibling_text": "relief safety valves settings testing lifting reasons bursting disc set just above stage working pressure the class standard accumulation limit is about 10 though the exact set point is a maker sms value non isolable from its stage test to the maker s method easing gear or test rig for lifting pressure log and reset", "sibling_family": "", "via": "answer_title", "answer_title": "Relief / safety valves: settings, testing, lifting reasons; bursting disc", "cross_family": false }, { "answer_id": "ACRV-004", "score": 0.4748403042554855, "sibling_score": null, "answer_score": 0.4748403042554855, "sibling_qid": "", "sibling_text": "final stage relief valve setting adjustment and safety cut out pressure always set by an authorised competent person to the maker s figure on a calibrated master gauge with the valve on a rig or the stage isolated and depressurised never adjust to mask a fault adjusting screw in raises the lift pressure more spring load out lowers it slacken the lock nut first relock and cap seal after", "sibling_family": "", "via": "answer_title", "answer_title": "Final-stage relief-valve setting/adjustment and safety cut-out pressure", "cross_family": false } ] }, { "qid": "KOL-2025-07-3810-Q004", "text": "Setting pressure of safety valve ( 3% above the Designed Working Pressure of the boiler )", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2025-07-3810", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-001", "score": 0.7406264543533325, "sibling_score": 0.7406264543533325, "answer_score": null, "sibling_qid": "CHE-2026-09-3931-Q006", "sibling_text": "boiler safety valve pressure setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-002", "score": 0.7396830916404724, "sibling_score": 0.7396830916404724, "answer_score": null, "sibling_qid": "KOL-2026-02-3922-Q005", "sibling_text": "what is lifting of safety valve tell only within 3 percent of designated set pressure nothing else", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Acceptance limits and durations — the accumulation limit, the maximum test periods, and the action if the limit is exceeded", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.7277409434318542, "sibling_score": 0.7277409434318542, "answer_score": null, "sibling_qid": "KOL-2026-02-3913-Q004", "sibling_text": "improved high lift safety valve pressure setting 3 above designated set pressure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOL-2025-07-3811-Q003", "text": "But clearance procedure and location in liner where you take and why?", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "KOL-2025-07-3811", "tray": "new", "candidates": [ { "answer_id": "CYL-LINER-P03-008", "score": 0.5462526679039001, "sibling_score": 0.5462526679039001, "answer_score": 0.32391805201768875, "sibling_qid": "KOL-2021-12-3494-Q004", "sibling_text": "describe the procedure of removal of a liner in detail", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Main-engine cylinder liner removal — full procedure, the lifting tool, and precautions", "cross_family": false }, { "answer_id": "CYL-LINER-P03-007", "score": 0.5332144498825073, "sibling_score": 0.5332144498825073, "answer_score": null, "sibling_qid": "MUM-2026-08-3851-Q009", "sibling_text": "checks and clearances on liner during overhaul", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Cylinder liner checks at overhaul, decarb and under-piston inspection", "cross_family": false }, { "answer_id": "CYL-LINER-P03-003", "score": 0.5169726014137268, "sibling_score": 0.5169726014137268, "answer_score": null, "sibling_qid": "KOL-2022-03-3529-Q001", "sibling_text": "me liner removal procedure safety cheks how will you remove if its stuck", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Removing a stuck cylinder liner — how, and where do you jack?", "cross_family": false } ] }, { "qid": "KOL-2025-07-3814-Q006", "text": "rocking test of winch", "family": "Auxiliary Equipment", "subtopic": "Windlass / Winch", "tid": "KOL-2025-07-3814", "tray": "review", "candidates": [ { "answer_id": "WBRT-001", "score": 0.6520544290542603, "sibling_score": 0.6520544290542603, "answer_score": 0.394731280207634, "sibling_qid": "KOC-2024-04-0335-Q008", "sibling_text": "tests carried out on winch", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Carrying out a mooring-winch brake rendering test", "cross_family": false }, { "answer_id": "CRANE-ROCK-LT-001", "score": 0.6027624607086182, "sibling_score": 0.6027624607086182, "answer_score": 0.45711020231246946, "sibling_qid": "MUM-2026-05-3278-Q009", "sibling_text": "rocking test", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Crane rocking test — what it is, how it is taken, and why", "cross_family": true }, { "answer_id": "WIND-WNCH-005", "score": 0.4090774357318878, "sibling_score": null, "answer_score": 0.4090774357318878, "sibling_qid": "", "sibling_text": "brake tests rendering and load efficiency testing why prove the brake holds and that a mooring winch brake renders before the line parts static holding test known pull applied no slip or permanent set", "sibling_family": "", "via": "answer_title", "answer_title": "Brake tests, rendering and load / efficiency testing", "cross_family": false } ] }, { "qid": "KOL-2025-07-3814-Q007", "text": "how to check piston alingment( plz mention you do this without piston ring)", "family": "2-Stroke - Components (Other)", "subtopic": "Piston Rings", "tid": "KOL-2025-07-3814", "tray": "review", "candidates": [ { "answer_id": "PIST-CSI-B-002", "score": 0.797118067741394, "sibling_score": 0.797118067741394, "answer_score": 0.6301714599132537, "sibling_qid": "KOL-2021-12-3498-Q004", "sibling_text": "checks on piston alignment", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Checking and correcting piston alignment / centering in the liner", "cross_family": false }, { "answer_id": "PST-CSI-BF-010", "score": 0.7609933018684387, "sibling_score": 0.7609933018684387, "answer_score": 0.6050330728292465, "sibling_qid": "KOL-2025-07-4058-Q001", "sibling_text": "how to check the piston alignment respect to cylinder", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Checking piston alignment / centring in the liner, and correcting eccentricity", "cross_family": false }, { "answer_id": "SB-PRG-B-005", "score": 0.7236863374710083, "sibling_score": 0.7236863374710083, "answer_score": null, "sibling_qid": "KOL-2022-01-3509-Q002", "sibling_text": "how to check the piston rod straight ness", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Ring set, segment identification, checks and clearances", "cross_family": false } ] }, { "qid": "KOL-2025-07-3815-Q001", "text": "oil in gauge glass action and cause", "family": "Boilers - Operations & Firing", "subtopic": "Scum / Blow Down", "tid": "KOL-2025-07-3815", "tray": "review", "candidates": [ { "answer_id": "SBD-001", "score": 0.7629527449607849, "sibling_score": 0.7629527449607849, "answer_score": 0.4818926751613617, "sibling_qid": "KOL-2026-02-4083-Q008", "sibling_text": "oil in gauge glass action and cause", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "You find oil in the boiler gauge glass — causes, how you identify the source, and your actions as 2/E (including if manoeuvring). What is carryover?", "cross_family": false }, { "answer_id": "BCFS-001", "score": 0.4181019261479378, "sibling_score": null, "answer_score": 0.4181019261479378, "sibling_qid": "", "sibling_text": "detecting and responding to oil contamination in the hot well or cascade tank detect oil film or sheen on the observation tank surface smell oiliness in the gauge glass oil in water monitor alarm if fitted foaming or an unstable boiler water level never let oil into the boiler it forms an insulating film on heating surfaces causing local overheating tube bulging and failure and it makes the water ", "sibling_family": "", "via": "answer_title", "answer_title": "Detecting and responding to oil contamination in the hot well or cascade tank", "cross_family": false }, { "answer_id": "CASC-COND-005", "score": 0.409082755446434, "sibling_score": null, "answer_score": 0.409082755446434, "sibling_qid": "", "sibling_text": "why there is an observation tank and where it is and the cascade tank and cascade system explained observation tank watch the returns for oil before the boiler a sight glass oil shows as a sheen sited in the return line ahead of the feed tank often the sight glass compartment of the cascade tank cascade tank the atmospheric feed observation and collecting tank the returns cascade over trays or wei", "sibling_family": "", "via": "answer_title", "answer_title": "Why there is an observation tank and where it is, and the cascade tank and cascade system explained", "cross_family": false } ] }, { "qid": "KOL-2025-07-3817-Q002", "text": "Rudder checks and clearances", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2025-07-3817", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.6946260333061218, "sibling_score": 0.6946260333061218, "answer_score": 0.40926018059253694, "sibling_qid": "KOL-2021-03-1582-Q006", "sibling_text": "checks on rudder in dd", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "STEER-055-A-005", "score": 0.4601020604372024, "sibling_score": null, "answer_score": 0.4601020604372024, "sibling_qid": "", "sibling_text": "checks clearances trials and steering room duties routine 2 e checks reservoir oil levels leaks motor pump heat noise vibration rudder follows helm both ways without hunting rai agrees with the actual rudder alarms healthy confined water critical transit run both power units redundancy test before entry no maintenance standby manning comms with the bridge confirmed", "sibling_family": "", "via": "answer_title", "answer_title": "Checks, clearances, trials and steering-room duties", "cross_family": false }, { "answer_id": "RUD-DROP-002", "score": 0.4579033464193344, "sibling_score": null, "answer_score": 0.4579033464193344, "sibling_qid": "", "sibling_text": "rudder clearances which where and how taken pintle bush clearance at each pintle top bottom f a and p s on long feeler gauges or pintle od vs bush id by caliper top mid bottom the maximum is the clearance renew the bush at the maker class limit carrier bearing wear down the rudder drop poker trammel gauge hull datum to stock mark against the recorded newbuilding reading", "sibling_family": "", "via": "answer_title", "answer_title": "Rudder clearances: which, where and how taken", "cross_family": false } ] }, { "qid": "KOL-2025-07-3818-Q012", "text": "6 aux engine bottom end bearing dismantling", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Decarb Checks / Connecting Rod / Bottom End Bearing", "tid": "KOL-2025-07-3818", "tray": "review", "candidates": [ { "answer_id": "AE-MB-002", "score": 0.736627995967865, "sibling_score": 0.736627995967865, "answer_score": 0.5314213454723358, "sibling_qid": "KOL-2022-02-3517-Q001", "sibling_text": "auxiliary engine main bearing lower shell removal normal bearing and then under slug bearing", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Removing the lower shell / bottom half of an AE main bearing", "cross_family": false }, { "answer_id": "AE-MB-001", "score": 0.7076988816261292, "sibling_score": 0.7076988816261292, "answer_score": null, "sibling_qid": "KOL-2026-02-4083-Q014", "sibling_text": "how to take out main bearing lower shell of aux engine", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Removing and renewing an auxiliary-engine main bearing", "cross_family": false }, { "answer_id": "AE-CRP-007", "score": 0.683363139629364, "sibling_score": 0.683363139629364, "answer_score": null, "sibling_qid": "KOL-2026-01-3903-Q002", "sibling_text": "aux engine bottom end bearing inspection", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE big-end / bottom-end bearing — inspection, bedding, nip and crush", "cross_family": false } ] }, { "qid": "KOL-2025-07-3822-Q001", "text": "Fracture in rudder how to proceed . Step by step procedure , How it's plate is ordered.(Asking about one word that required in ordering plate).", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2025-07-3822", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.6771224141120911, "sibling_score": 0.6771224141120911, "answer_score": null, "sibling_qid": "MUM-2026-04-2689-Q008", "sibling_text": "rudder crack repair", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "PRE-TEN-001", "score": 0.6059769988059998, "sibling_score": 0.6059769988059998, "answer_score": null, "sibling_qid": "MUM-2026-06-3504-Q007", "sibling_text": "rudder carrier bearing removal procedure", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Pre-stressing and pre-tensioning in main-engine bolting", "cross_family": false }, { "answer_id": "WBS-C-006", "score": 0.46446762084960935, "sibling_score": null, "answer_score": 0.46446762084960935, "sibling_qid": "", "sibling_text": "propeller and rudder repair grading the damage and the class approved route grade the damage first minor nicks erosion bent tip vs crack major minor grind and blend out the notch restore a fair section keep balance small cold repair epoxy fillers for minor surface defects only", "sibling_family": "", "via": "answer_title", "answer_title": "Propeller and rudder repair — grading the damage and the Class-approved route", "cross_family": false } ] }, { "qid": "KOL-2025-07-3822-Q004", "text": "Crack in A frame , reasons.", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Bedplate / A-Frame", "tid": "KOL-2025-07-3822", "tray": "review", "candidates": [ { "answer_id": "FWFB-P02-008", "score": 0.7262057065963745, "sibling_score": 0.7262057065963745, "answer_score": null, "sibling_qid": "MUM-2026-05-3081-Q001", "sibling_text": "a frame crack reason", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Forces and stresses on transverse girders; action for cracks", "cross_family": false }, { "answer_id": "CYL-LINER-P03-002", "score": 0.4752625823020935, "sibling_score": 0.4752625823020935, "answer_score": null, "sibling_qid": "MUM-2022-12-1037-Q022", "sibling_text": "one unit cylinder crack reasons", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Detecting and confirming a cracked or leaking liner — and pinning the unit", "cross_family": true }, { "answer_id": "CRK-DEFL-001", "score": 0.44779667258262634, "sibling_score": 0.44779667258262634, "answer_score": null, "sibling_qid": "MUM-2023-07-2738-Q003", "sibling_text": "reason for taking crank web deflection", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Purpose, timing and scope of crankshaft deflection", "cross_family": false } ] }, { "qid": "KOL-2025-07-3823-Q002", "text": "Classification Society, Scope of classification", "family": "Surveys - Statutory", "subtopic": "IACS / Classification Society", "tid": "KOL-2025-07-3823", "tray": "review", "candidates": [ { "answer_id": "IACS-324-002", "score": 0.7124236226081848, "sibling_score": 0.7124236226081848, "answer_score": 0.4245096236467361, "sibling_qid": "CHE-2025-10-0076-Q006", "sibling_text": "what is classification society it s functions", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "2. What is a classification society, why does a ship need class, and what are its functions?", "cross_family": false }, { "answer_id": "IACS-324-008", "score": 0.6726437211036682, "sibling_score": 0.6726437211036682, "answer_score": null, "sibling_qid": "KOC-2025-09-0652-Q002", "sibling_text": "surveys under classification society", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "8. What surveys are carried out under a classification society?", "cross_family": false }, { "answer_id": "CSAS-SURV-001", "score": 0.6648494005203247, "sibling_score": 0.6648494005203247, "answer_score": 0.4107636332511902, "sibling_qid": "MUM-2023-03-0088-Q008", "sibling_text": "classification society", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Certificate of class — what it is, who issues it, what class looks after", "cross_family": true } ] }, { "qid": "KOL-2025-07-3831-Q001", "text": "Pintle work and how to take clearance", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2025-07-3831", "tray": "new", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.5151599645614624, "sibling_score": 0.5151599645614624, "answer_score": null, "sibling_qid": "KOL-2020-09-3346-Q009", "sibling_text": "clearances that you will measure for propellor and rudder in drydock how to check pintle clearance without removing rudder from place finally can breathe freely thanx everyone for all the help", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "BCL-592-002", "score": 0.42405322194099426, "sibling_score": 0.42405322194099426, "answer_score": 0.3472986280918121, "sibling_qid": "MUM-2026-05-3001-Q006S2", "sibling_text": "how to take clearance", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Take me through all the clearances you measure on the main engine and how you take each one.", "cross_family": true }, { "answer_id": "RUD-DROP-003", "score": 0.42031586170196533, "sibling_score": 0.42031586170196533, "answer_score": null, "sibling_qid": "KOL-2020-10-3354-Q003", "sibling_text": "ur ship is in drydock what all clearances u take in drydock for rudder and propeller how do u take what all measuring tools reqd all clearances value when ship is new and maximum wear down limit too many cross", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Rudder drop at the limit: the decision", "cross_family": false } ] }, { "qid": "KOL-2025-07-3831-Q004", "text": "how load is transmitted via flange", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft Nose", "tid": "KOL-2025-07-3831", "tray": "new", "candidates": [ { "answer_id": "FB-COUP-004", "score": 0.6056141257286072, "sibling_score": 0.6056141257286072, "answer_score": 0.4138649761676788, "sibling_qid": "KOL-2025-10-3870-Q002", "sibling_text": "how to decide a flange to connect two shafts basically flange specifications to consider and function of the bolts in the flange which type of load it takes shear stress", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Coupling bolt selection and the load it carries", "cross_family": false }, { "answer_id": "CRK-DEFL-004", "score": 0.4823290705680847, "sibling_score": 0.4823290705680847, "answer_score": null, "sibling_qid": "KOL-2022-04-3531-Q003", "sibling_text": "crankshaft deflection he gave values for all unit vertical deflection asked me how all bearings are loaded", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Interpreting the readings and acting on abnormal values", "cross_family": false }, { "answer_id": "PIPEFAB-008", "score": 0.46396684646606445, "sibling_score": 0.46396684646606445, "answer_score": null, "sibling_qid": "KOL-2022-01-4004-Q006", "sibling_text": "difference in different types of flanges onboard", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "What are the different types of flange used on board, and how do they differ?", "cross_family": true } ] }, { "qid": "KOL-2025-07-3834-Q001", "text": "Rudder inspection all including painting", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Painting", "tid": "KOL-2025-07-3834", "tray": "review", "candidates": [ { "answer_id": "HULL-PAINT-002", "score": 0.7640966773033142, "sibling_score": 0.7640966773033142, "answer_score": null, "sibling_qid": "CHE-2026-02-0110-Q012", "sibling_text": "rudder internal painting", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Types of hull coating, the paint scheme by section, and why each is used", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.7640966773033142, "sibling_score": 0.7640966773033142, "answer_score": 0.48229560554027556, "sibling_qid": "MUM-2026-05-3150-Q003", "sibling_text": "rudder internal painting", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "AIRBTL-CORR-001", "score": 0.7053416967391968, "sibling_score": 0.7053416967391968, "answer_score": null, "sibling_qid": "KOL-2024-03-1775-Q005", "sibling_text": "air bottle inspection 2 rudder inspection painting why 2 45 m", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "AIRBTL-CORR-01 — Air bottle survey and internal inspection — preparation, checks and what you show the surveyor", "cross_family": true } ] }, { "qid": "KOL-2025-07-3834-Q004", "text": "Boiler safety valve survey", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2025-07-3834", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P01-001", "score": 0.8325006365776062, "sibling_score": 0.8325006365776062, "answer_score": null, "sibling_qid": "MUM-2026-03-2935-Q013", "sibling_text": "boiler safety valve setting in presence of surveyor after survey", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.8048974871635437, "sibling_score": 0.8048974871635437, "answer_score": null, "sibling_qid": "KOL-2021-08-1614-Q006", "sibling_text": "boiler survey interval types of safety valves improved high lift safety valve in detail", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACRV-005", "score": 0.7754886746406555, "sibling_score": 0.7754886746406555, "answer_score": null, "sibling_qid": "MUM-2026-06-3549-Q005", "sibling_text": "boiler safety valve maximum questions", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": false } ] }, { "qid": "KOL-2025-07-3835-Q002", "text": "Rudder inspection and painting of rudder", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Painting", "tid": "KOL-2025-07-3835", "tray": "review", "candidates": [ { "answer_id": "HULL-PAINT-002", "score": 0.7678678631782532, "sibling_score": 0.7678678631782532, "answer_score": null, "sibling_qid": "CHE-2026-02-0110-Q012", "sibling_text": "rudder internal painting", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Types of hull coating, the paint scheme by section, and why each is used", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.7678678631782532, "sibling_score": 0.7678678631782532, "answer_score": 0.4762583374977112, "sibling_qid": "MUM-2026-05-3150-Q003", "sibling_text": "rudder internal painting", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "DUS-P5-05", "score": 0.5329788565635681, "sibling_score": null, "answer_score": 0.5329788565635681, "sibling_qid": "", "sibling_text": "rudder checks and rudder blade tightness leak test in drydock visual checks coating condition cavitation erosion on the blade leading edge propeller side face sacrificial anodes against the approved cathodic protection plan grounding continuity against the approved acceptance criterion plate and weld cracks pintle clearance measured with feeler the numerical acceptance limit is class specific and ", "sibling_family": "", "via": "answer_title", "answer_title": "Rudder checks and rudder-blade tightness/leak test in drydock", "cross_family": false } ] }, { "qid": "KOL-2025-07-3837-Q001", "text": "exhaust valve cut out.", "family": "2-Stroke - Exhaust, Valve & Starting Air", "subtopic": "Exhaust Valve", "tid": "KOL-2025-07-3837", "tray": "review", "candidates": [ { "answer_id": "EXHV-080-BF37-002", "score": 0.7006548047065735, "sibling_score": 0.7006548047065735, "answer_score": 0.5056106984615326, "sibling_qid": "MUM-2026-04-1007-Q006", "sibling_text": "exhaust valve working complete", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Explain the working and construction of the exhaust valve, its mountings and internal parts.", "cross_family": false }, { "answer_id": "EXHV-297-001", "score": 0.6859031915664673, "sibling_score": 0.6859031915664673, "answer_score": null, "sibling_qid": "MUM-2026-02-1259-Q006", "sibling_text": "type of exhaust valve not understood", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve — construction, materials, type, working & latest developments", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.68464595079422, "sibling_score": 0.68464595079422, "answer_score": null, "sibling_qid": "KOL-2018-01-1345-Q001", "sibling_text": "exhaust valve working", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false } ] }, { "qid": "KOL-2025-07-3838-Q003", "text": "cast iron welding ?", "family": "Workshop & Welding", "subtopic": "Cast Iron Welding", "tid": "KOL-2025-07-3838", "tray": "review", "candidates": [ { "answer_id": "WELD-B-001", "score": 0.830560028553009, "sibling_score": 0.830560028553009, "answer_score": 0.5481056928634643, "sibling_qid": "MUM-2026-05-3209-Q007", "sibling_text": "cast iron welding", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding & crack-repair of aluminium and cast iron, including metal stitching", "cross_family": false }, { "answer_id": "LH-ELEC-006", "score": 0.509849750995636, "sibling_score": null, "answer_score": 0.509849750995636, "sibling_qid": "", "sibling_text": "6 how would you approach a cast iron valve repair when the examiner probes welding and low hydrogen electrodes first response replace or fit a sound same size valve a welded cast iron repair is a stop gap not equal to new if welding cast iron not a plain mild steel low hydrogen rod the high carbon makes a hard brittle cracking weld", "sibling_family": "", "via": "answer_title", "answer_title": "6. How would you approach a cast-iron valve repair when the examiner probes welding and low-hydrogen electrodes?", "cross_family": false }, { "answer_id": "METAL-LOCK-001", "score": 0.49347369372844696, "sibling_score": null, "answer_score": 0.49347369372844696, "sibling_qid": "", "sibling_text": "what is metal locking stitching why use it materials benefits cold process zero heat applied at any stage for brittle cast iron and other castings where welding risks further cracking or a brittle heat affected zone", "sibling_family": "", "via": "answer_title", "answer_title": "What is metal locking / stitching, why use it, materials & benefits", "cross_family": false } ] }, { "qid": "KOL-2025-07-3840-Q004", "text": "How do you measure A/E crankshaft ovality?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Crankshaft / Crankpin / Bearings", "tid": "KOL-2025-07-3840", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-004", "score": 0.7170435786247253, "sibling_score": 0.7170435786247253, "answer_score": null, "sibling_qid": "CHE-2025-08-0512-Q004", "sibling_text": "how u measure connecting rod ovality in 4s why not in 2s", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE connecting-rod inspection — ovality, trueness, serrations, action if out of limit", "cross_family": false }, { "answer_id": "CRPIN-CHK-P01-001", "score": 0.7081805467605591, "sibling_score": 0.7081805467605591, "answer_score": 0.6106647253036499, "sibling_qid": "KOL-2016-08-1230-Q002", "sibling_text": "crank pin ovality how to measure", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankpin ovality — how it is measured and at what positions", "cross_family": true }, { "answer_id": "AECR-651-002", "score": 0.7039043307304382, "sibling_score": 0.7039043307304382, "answer_score": 0.5862267673015594, "sibling_qid": "KOL-2026-05-0079-Q002", "sibling_text": "connecting rod ovality how to measure", "sibling_family": "", "via": "sibling", "answer_title": "How do you take the ovality of the AE big end in a 4-stroke, and what are the ovality limits and maximum value?", "cross_family": false } ] }, { "qid": "KOL-2025-07-3841-Q002", "text": "Exhaust valve actuator stuck. How to run engine. Steps to cut off unit. Cyl lubrication any change?", "family": "2-Stroke - Exhaust, Valve & Starting Air", "subtopic": "Exhaust Valve", "tid": "KOL-2025-07-3841", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.7353586554527283, "sibling_score": 0.7353586554527283, "answer_score": 0.5337736219167709, "sibling_qid": "KOL-2023-09-3638-Q003", "sibling_text": "exhast valve actuator damaged how to run engine", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "EXHV-297-002", "score": 0.6932885050773621, "sibling_score": 0.6932885050773621, "answer_score": null, "sibling_qid": "MUM-2023-06-2733-Q003", "sibling_text": "suppose actuater of exhaust valve is not working how will you run the engine", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Actuator parts, throttle/damper, air-spring failure & back-up", "cross_family": false }, { "answer_id": "EXV-P02-001", "score": 0.6772369742393494, "sibling_score": 0.6772369742393494, "answer_score": 0.5842170804738999, "sibling_qid": "KOL-2026-07-4268-Q001", "sibling_text": "precaution before overhaul me exhaust valve", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve overhaul & dismantling — procedure and precautions", "cross_family": false } ] }, { "qid": "KOL-2025-07-3843-Q002", "text": "Cast iron welding and procedure electrode, and cross Ques ?", "family": "Workshop & Welding", "subtopic": "Cast Iron Welding", "tid": "KOL-2025-07-3843", "tray": "review", "candidates": [ { "answer_id": "WELD-B-001", "score": 0.7875970602035522, "sibling_score": 0.7875970602035522, "answer_score": 0.49885841012001036, "sibling_qid": "MUM-2026-06-3641-Q001", "sibling_text": "cast iron welding which electrode", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding & crack-repair of aluminium and cast iron, including metal stitching", "cross_family": false }, { "answer_id": "LH-ELEC-003", "score": 0.5372431904077529, "sibling_score": null, "answer_score": 0.5372431904077529, "sibling_qid": "", "sibling_text": "3 how do you select or order the correct welding electrode or rod match to base material and strength first mild steel high tensile stainless cast iron this fixes the electrode family then coating type for the duty rutile e g e6013 general basic low hydrogen e7018 crack sensitive or high tensile", "sibling_family": "", "via": "answer_title", "answer_title": "3. How do you select or order the correct welding electrode or rod?", "cross_family": false }, { "answer_id": "LH-ELEC-006", "score": 0.5039563179016113, "sibling_score": null, "answer_score": 0.5039563179016113, "sibling_qid": "", "sibling_text": "6 how would you approach a cast iron valve repair when the examiner probes welding and low hydrogen electrodes first response replace or fit a sound same size valve a welded cast iron repair is a stop gap not equal to new if welding cast iron not a plain mild steel low hydrogen rod the high carbon makes a hard brittle cracking weld", "sibling_family": "", "via": "answer_title", "answer_title": "6. How would you approach a cast-iron valve repair when the examiner probes welding and low-hydrogen electrodes?", "cross_family": false } ] }, { "qid": "KOL-2025-07-4058-Q002", "text": "Function of accumulator in fridge system", "family": "Refrigeration & AC", "subtopic": "Refer Cycle", "tid": "KOL-2025-07-4058", "tray": "review", "candidates": [ { "answer_id": "REF-CYC-002", "score": 0.7851672172546387, "sibling_score": 0.7851672172546387, "answer_score": 0.42666253745555877, "sibling_qid": "KOL-2026-07-4281-Q006", "sibling_text": "accumulator in fridge compressor", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "2. Refrigeration plant components and their control functions", "cross_family": false }, { "answer_id": "AIR-REF-004", "score": 0.5951069593429565, "sibling_score": 0.5951069593429565, "answer_score": null, "sibling_qid": "KOC-2021-11-1769-Q006", "sibling_text": "air in reefer system action", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "4. Detecting and purging air from a refrigeration system", "cross_family": false }, { "answer_id": "AIR-REF-001", "score": 0.5884791612625122, "sibling_score": 0.5884791612625122, "answer_score": null, "sibling_qid": "MUM-2026-06-3447-Q003", "sibling_text": "air in fridge system", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "1. Indications that air is present in a refrigeration system", "cross_family": false } ] }, { "qid": "KOL-2025-07-4059-Q002", "text": "VLCC Type of engine- 9s 80mcc Boiler type - Mitsubishi donkey boiler Q1. During discharging boiler automation failed, in emergency firing how will you maintain 02? Q2. ESP of tanker ship ? Which part? What are the regulations? Q3. New type of venting arrangement in PV valve and regulations of both solas and ISGOT", "family": "Boilers - Operations & Firing", "subtopic": "Automatic Combustion Control", "tid": "KOL-2025-07-4059", "tray": "review", "candidates": [ { "answer_id": "SBD-003", "score": 0.682040274143219, "sibling_score": 0.682040274143219, "answer_score": null, "sibling_qid": "KOL-2019-01-3207-Q005", "sibling_text": "how boiler blowdown valve is fitted on ship side", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "How is the boiler blowdown valve fitted on the ship's side and how are the blowdown valves arranged? What is the blowdown pressure and its significance? 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PLC ? source of power ?", "family": "Electrical - High Voltage", "subtopic": "Earthing / Neutral / NER", "tid": "KOL-2025-08-2820", "tray": "review", "candidates": [ { "answer_id": "ENR-P02B-001", "score": 0.6849046945571899, "sibling_score": 0.6849046945571899, "answer_score": null, "sibling_qid": "MUM-2025-12-1836-Q002", "sibling_text": "what is done with neutral point on hv system earthed to where", "sibling_family": "", "via": "sibling", "answer_title": "Ship’s earthing / distribution system — insulated LV neutral, earthed (Class-approved) HV neutral", "cross_family": false }, { "answer_id": "EARTH-NEU-02A-002", "score": 0.6226375699043274, "sibling_score": 0.6226375699043274, "answer_score": 0.4985571622848511, "sibling_qid": "KOC-2025-04-1525-Q004", "sibling_text": "insulated neutral and earthed neutral why earthed neutral on hv system", "sibling_family": "", "via": "sibling", "answer_title": "Insulated neutral vs earthed neutral — how each behaves, where each is used, which is safer", "cross_family": false }, { "answer_id": "NER-HV-P04-002", "score": 0.6202941536903381, "sibling_score": 0.6202941536903381, "answer_score": null, "sibling_qid": "KOL-2025-08-2847-Q010", "sibling_text": "system for neutral earth for high voltage value of ner in high voltage", "sibling_family": "", "via": "sibling", "answer_title": "How the NER value is selected/calculated, and its construction and material", "cross_family": false } ] }, { "qid": "KOL-2025-08-2820-Q009", "text": "What is fail safe ?", "family": "Electrical - Protection & Relays", "subtopic": "Protection / Relays", "tid": "KOL-2025-08-2820", "tray": "new", "candidates": [ { "answer_id": "AUC-P03-05", "score": 0.5496404767036438, "sibling_score": 0.5496404767036438, "answer_score": 0.42339230626821517, "sibling_qid": "MUM-2026-07-3698-Q003", "sibling_text": "fail set and failsafe", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Fail-safe, fail-set and redundancy — three-way jacket-water valve on loss of signal", "cross_family": true }, { "answer_id": "CTRL-TL-010", "score": 0.5431164503097534, "sibling_score": 0.5431164503097534, "answer_score": null, "sibling_qid": "KOL-2021-07-2466-Q003", "sibling_text": "fail safe in control system", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Pneumatic control: nozzle-flapper, DP, actuators and fail-safe", "cross_family": true }, { "answer_id": "FSF-BF073-001", "score": 0.5368025302886963, "sibling_score": 0.5368025302886963, "answer_score": 0.44773088693618773, "sibling_qid": "MUM-2026-03-2021-Q005", "sibling_text": "what is fail safe where we use and how it work", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "What is fail safe — where do we use it on board and how does it work?", "cross_family": true } ] }, { "qid": "KOL-2025-08-2824-Q002", "text": "Vacuum diode & it's function ? How it's different from normal diode?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Zener / Diode / Rectifier", "tid": "KOL-2025-08-2824", "tray": "new", "candidates": [ { "answer_id": "DSC-004", "score": 0.5988437533378601, "sibling_score": 0.5988437533378601, "answer_score": null, "sibling_qid": "KOL-2023-05-2654-Q004", "sibling_text": "normal diode how developed minority and majority carrier", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a PN junction, what are majority and minority carriers, and what is breakdown voltage?", "cross_family": false }, { "answer_id": "EPC-P02-02", "score": 0.5983995199203491, "sibling_score": 0.5983995199203491, "answer_score": 0.4882517606019974, "sibling_qid": "KOL-2016-11-2079-Q002", "sibling_text": "zenor diode differance with normal diode its special property nd where they r used", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "How is a zener diode different from a normal (PN / crystal) diode — construction, behaviour, output, and use?", "cross_family": false }, { "answer_id": "EPC-P02-01", "score": 0.5958269238471985, "sibling_score": 0.5958269238471985, "answer_score": null, "sibling_qid": "MUM-2025-08-1571-Q002", "sibling_text": "voltage diode", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a zener diode? Draw its symbol, explain its working principle, and draw and explain its characteristic curve including the zener (breakdown) voltage.", "cross_family": false } ] }, { "qid": "KOL-2025-08-2824-Q004", "text": "Brushless Excitation system? Cross ques on how voltage is sensed by AVR, which part stationary, which part rotary in this excitation system?", "family": "Electrical - Generator & Alternator", "subtopic": "Brushless Alternator", "tid": "KOL-2025-08-2824", "tray": "review", "candidates": [ { "answer_id": "BRUSHALT-A-001", "score": 0.7415533661842346, "sibling_score": 0.7415533661842346, "answer_score": null, "sibling_qid": "KOL-2021-10-2502-Q002", "sibling_text": "brushless alternator where rotor exciter fitted how current going exciter to main rotor", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01 · Working principle of the brushless alternator / brushless excitation systemHigh", "cross_family": false }, { "answer_id": "BL-ALT-C-002", "score": 0.7021549940109253, "sibling_score": 0.7021549940109253, "answer_score": null, "sibling_qid": "KOL-2026-05-4243-Q010", "sibling_text": "brushless excitation system decider question", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "How to identify onboard that an alternator is brushless", "cross_family": false }, { "answer_id": "AVR-EXC-G-002", "score": 0.6882542371749878, "sibling_score": 0.6882542371749878, "answer_score": 0.6564913809299469, "sibling_qid": "MUM-2022-09-1353-Q007", "sibling_text": "how avr gives dc current to rotor", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Brushless excitation: how DC reaches the rotor", "cross_family": false } ] }, { "qid": "KOL-2025-08-2824-Q005", "text": "What do u mean by Ex-i device ?Cross ques on Zener diode, where located, why connected in Reverse biased. ? (He asked as u r saying it works in Reverse biased mode, then how will u test it in circuit how will u confirm it's working or faulty - couldn't ans.)", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOL-2025-08-2824", "tray": "review", "candidates": [ { "answer_id": "EPC-P02-01", "score": 0.6918302774429321, "sibling_score": 0.6918302774429321, "answer_score": 0.5631805479526519, "sibling_qid": "KOL-2022-08-2593-Q004", "sibling_text": "what is zener diode how diode test onboard", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a zener diode? Draw its symbol, explain its working principle, and draw and explain its characteristic curve including the zener (breakdown) voltage.", "cross_family": false }, { "answer_id": "EPC-P02-03", "score": 0.6779838800430298, "sibling_score": 0.6779838800430298, "answer_score": 0.5660140305757523, "sibling_qid": "KOL-2021-08-2486-Q002", "sibling_text": "zener diode function and usage and cross", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Where is a zener diode used on board and why — voltage regulator, AVR, clipper — and explain one application in detail.", "cross_family": false }, { "answer_id": "EPC-P01-01", "score": 0.6586592197418213, "sibling_score": 0.6586592197418213, "answer_score": null, "sibling_qid": "KOL-2018-11-1431-Q006", "sibling_text": "what is a zener diode it s uses", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a diode? Symbol, forward and reverse bias, and the characteristic curve", "cross_family": false } ] }, { "qid": "KOL-2025-08-2825-Q008", "text": "Vacuum diode?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Zener / Diode / Rectifier", "tid": "KOL-2025-08-2825", "tray": "new", "candidates": [ { "answer_id": "EPC-P02-01", "score": 0.6371092796325684, "sibling_score": 0.6371092796325684, "answer_score": null, "sibling_qid": "MUM-2025-08-1571-Q002", "sibling_text": "voltage diode", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a zener diode? Draw its symbol, explain its working principle, and draw and explain its characteristic curve including the zener (breakdown) voltage.", "cross_family": false }, { "answer_id": "EPC-P01-01", "score": 0.6261724233627319, "sibling_score": 0.6261724233627319, "answer_score": 0.41619227528572084, "sibling_qid": "MUM-2026-03-2035-Q009", "sibling_text": "diode", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a diode? Symbol, forward and reverse bias, and the characteristic curve", "cross_family": false }, { "answer_id": "EPC-P01-02", "score": 0.6097248196601868, "sibling_score": 0.6097248196601868, "answer_score": 0.43921052813529965, "sibling_qid": "KOC-2026-02-1715-Q004", "sibling_text": "type of diodes", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Types of diodes, and where diodes are used on board", "cross_family": false } ] }, { "qid": "KOL-2025-08-2826-Q004", "text": "Brushless alternator working? construction?", "family": "Electrical - Generator & Alternator", "subtopic": "Brushless Alternator", "tid": "KOL-2025-08-2826", "tray": "review", "candidates": [ { "answer_id": "BRUSHALT-A-001", "score": 0.8319758772850037, "sibling_score": 0.8319758772850037, "answer_score": 0.6086194217205048, "sibling_qid": "MUM-2026-06-3522-Q007", "sibling_text": "brushless alternators construction", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01 · Working principle of the brushless alternator / brushless excitation systemHigh", "cross_family": false }, { "answer_id": "ALT-GEN-P03-003", "score": 0.5881271719932556, "sibling_score": null, "answer_score": 0.5881271719932556, "sibling_qid": "", "sibling_text": "brushless alternator advantages and brushed vs brushless comparison brushed dc excitation reaches rotor through brushes and slip rings brushless avr feeds exciter field exciter output is rectified by rotating diodes to feed main rotor", "sibling_family": "", "via": "answer_title", "answer_title": "Brushless alternator advantages and brushed vs brushless comparison", "cross_family": false }, { "answer_id": "BL-ALT-C-002", "score": 0.5691744983196259, "sibling_score": null, "answer_score": 0.5691744983196259, "sibling_qid": "", "sibling_text": "how to identify onboard that an alternator is brushless open the exciter non drive end cover no brushes no brush boxes or springs no slip rings no carbon dust brushless defining proof no slip rings on the main rotor a visible shaft mounted rotating rectifier diode wheel plus surge suppressor", "sibling_family": "", "via": "answer_title", "answer_title": "How to identify onboard that an alternator is brushless", "cross_family": false } ] }, { "qid": "KOL-2025-08-2826-Q006", "text": "Alternator stator construction ?", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator / Generator", "tid": "KOL-2025-08-2826", "tray": "review", "candidates": [ { "answer_id": "ROTSTAT-C-003", "score": 0.7944517731666565, "sibling_score": 0.7944517731666565, "answer_score": 0.5618621706962585, "sibling_qid": "KOL-2026-01-2951-Q001", "sibling_text": "alternator stator construction", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Stator construction, winding & types", "cross_family": false }, { "answer_id": "ALT-GEN-P03-005", "score": 0.6991936564445496, "sibling_score": 0.6991936564445496, "answer_score": 0.5334994792938232, "sibling_qid": "KOC-2023-02-1231-Q004", "sibling_text": "alternator construction", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Alternator construction, parts, and direct connection", "cross_family": false }, { "answer_id": "BRUSHALT-A-001", "score": 0.6672431826591492, "sibling_score": 0.6672431826591492, "answer_score": null, "sibling_qid": "MUM-2026-06-3522-Q007", "sibling_text": "brushless alternators construction", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01 · Working principle of the brushless alternator / brushless excitation systemHigh", "cross_family": false } ] }, { "qid": "KOL-2025-08-2827-Q002", "text": "Alternator Stator Rotor construction ?working & material used. Types & How is voltage developed? Lots of Cross questions", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator / Generator", "tid": "KOL-2025-08-2827", "tray": "review", "candidates": [ { "answer_id": "ROTSTAT-C-003", "score": 0.8081282377243042, "sibling_score": 0.8081282377243042, "answer_score": 0.5656206250190735, "sibling_qid": "KOL-2026-01-2951-Q001", "sibling_text": "alternator stator construction", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Stator construction, winding & types", "cross_family": false }, { "answer_id": "ALT-GEN-P03-005", "score": 0.7762040495872498, "sibling_score": 0.7762040495872498, "answer_score": 0.5968757718801498, "sibling_qid": "KOC-2023-02-1231-Q004", "sibling_text": "alternator construction", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Alternator construction, parts, and direct connection", "cross_family": false }, { "answer_id": "ALT-MTN-B-001", "score": 0.7534427046775818, "sibling_score": 0.7534427046775818, "answer_score": null, "sibling_qid": "KOL-2019-08-2318-Q002", "sibling_text": "alternator parts type of windings", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Routine onboard alternator maintenance checks", "cross_family": false } ] }, { "qid": "KOL-2025-08-2827-Q006", "text": "ICCP full working ?", "family": "Electrical - ICCP & Cathodic Protection", "subtopic": "ICCP", "tid": "KOL-2025-08-2827", "tray": "review", "candidates": [ { "answer_id": "ICCP-119-P01-001", "score": 0.703406572341919, "sibling_score": 0.703406572341919, "answer_score": 0.4087755292654037, "sibling_qid": "MUM-2025-05-1494-Q004", "sibling_text": "iccp working", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP — purpose, principle and basic working", "cross_family": false }, { "answer_id": "ICCP-119-P01-002", "score": 0.656853973865509, "sibling_score": 0.656853973865509, "answer_score": 0.3754885300993919, "sibling_qid": "MUM-2024-01-1421-Q004", "sibling_text": "iccp complete working with components", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP circuit / control arrangement, construction and main components", "cross_family": false }, { "answer_id": "ICCP-MGPS-002", "score": 0.3177684873342514, "sibling_score": null, "answer_score": 0.3177684873342514, "sibling_qid": "", "sibling_text": "knowing iccp and mgps are performing satisfactorily iccp healthy hull potential within the protective criterion about 0 80 v or more negative vs ag agcl seawater on the reference cells rectifier current steady and self modulating no overprotection not driven too negative iccp backup checks anodes dielectric shields and hull bonds sound at dry dock reference cell not drifting logbook trend stable", "sibling_family": "", "via": "answer_title", "answer_title": "Knowing ICCP and MGPS are performing satisfactorily", "cross_family": false } ] }, { "qid": "KOL-2025-08-2830-Q004", "text": "What is the safety inside the alternator?", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator Protection", "tid": "KOL-2025-08-2830", "tray": "review", "candidates": [ { "answer_id": "ALT-GEN-P01-001", "score": 0.7670000195503235, "sibling_score": 0.7670000195503235, "answer_score": 0.5194220453500747, "sibling_qid": "KOL-2026-01-2950-Q002", "sibling_text": "alternator internal safeties", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Alternator/generator safeties and protection trips", "cross_family": false }, { "answer_id": "SHAFT-GEN-005", "score": 0.4875840097665787, "sibling_score": null, "answer_score": 0.4875840097665787, "sibling_qid": "", "sibling_text": "safeties provided for a shaft generator standard alternator protections over current short circuit over under voltage over under frequency reverse power paralleled earth fault and preferential load shedding trips sg specific interlocks breaker closes only when synchronised clutch gear engagement interlocks", "sibling_family": "", "via": "answer_title", "answer_title": "Safeties provided for a shaft generator", "cross_family": false }, { "answer_id": "ALT-MAINT-A-001", "score": 0.45898517370223996, "sibling_score": null, "answer_score": 0.45898517370223996, "sibling_qid": "", "sibling_text": "routine maintenance care of a ship s alternator make safe first permit to work isolate rack out and lock off the breaker immobilise the prime mover the set is engine driven a blackout dead bus auto start can crank it prove dead discharge the windings the space heater supply is separate it stays live after the alternator breaker is open isolate it independently before touching the windings", "sibling_family": "", "via": "answer_title", "answer_title": "Routine maintenance & care of a ship’s alternator", "cross_family": false } ] }, { "qid": "KOL-2025-08-2830-Q006", "text": "What is losses of induction motor?", "family": "Electrical - Motors & Starters", "subtopic": "Rotor / Stator", "tid": "KOL-2025-08-2830", "tray": "review", "candidates": [ { "answer_id": "ROTSTAT-C-005", "score": 0.7954772710800171, "sibling_score": 0.7954772710800171, "answer_score": 0.5809036076068878, "sibling_qid": "KOL-2021-04-2445-Q003", "sibling_text": "induction motor losses all from stator to output", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Rotor/stator heating, losses & magnetic saturation", "cross_family": false }, { "answer_id": "IND-MOT-A-001", "score": 0.7217147946357727, "sibling_score": 0.7217147946357727, "answer_score": null, "sibling_qid": "KOL-2018-06-2206-Q001", "sibling_text": "losses in an induction motor how to minimize them", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "1. Working principle of a three-phase induction motor", "cross_family": false }, { "answer_id": "IM-GEN-B-002", "score": 0.7204635143280029, "sibling_score": 0.7204635143280029, "answer_score": null, "sibling_qid": "KOL-2024-11-0886-Q015", "sibling_text": "what are the losses in an induction motor and is there any way to check the amount of losses", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motors onboard and types of induction motors", "cross_family": false } ] }, { "qid": "KOL-2025-08-2831-Q002", "text": "Exi-A & Exi-b ? cross ques", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOL-2025-08-2831", "tray": "new", "candidates": [ { "answer_id": "EECS-011", "score": 0.631692111492157, "sibling_score": 0.631692111492157, "answer_score": 0.24192802757024764, "sibling_qid": "MUM-2026-08-3837-Q001", "sibling_text": "eexi eeoi cross ques", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "11. Explain EEXI and EEOI", "cross_family": false }, { "answer_id": "EECS-002", "score": 0.5649233460426331, "sibling_score": 0.5649233460426331, "answer_score": null, "sibling_qid": "MUM-2026-05-3232-Q001", "sibling_text": "eexi eeoi cii and cross questions", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "02. Differentiate EEXI and CII", "cross_family": false }, { "answer_id": "EEDI-C-001", "score": 0.5277191996574402, "sibling_score": 0.5277191996574402, "answer_score": 0.2879149839282036, "sibling_qid": "MUM-2026-05-3261-Q005", "sibling_text": "eexi and eedi their units and cross", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "EEDI versus EEXI — what is the difference?", "cross_family": false } ] }, { "qid": "KOL-2025-08-2834-Q003", "text": "Diode test?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Zener / Diode / Rectifier", "tid": "KOL-2025-08-2834", "tray": "review", "candidates": [ { "answer_id": "EPC-P01-02", "score": 0.7323091626167297, "sibling_score": 0.7323091626167297, "answer_score": null, "sibling_qid": "CHE-2026-05-0627-Q008", "sibling_text": "diode testing", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Types of diodes, and where diodes are used on board", "cross_family": false }, { "answer_id": "EPC-P02-01", "score": 0.6372507214546204, "sibling_score": 0.6372507214546204, "answer_score": null, "sibling_qid": "KOL-2022-08-2593-Q004", "sibling_text": "what is zener diode how diode test onboard", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a zener diode? Draw its symbol, explain its working principle, and draw and explain its characteristic curve including the zener (breakdown) voltage.", "cross_family": false }, { "answer_id": "TC-A-004", "score": 0.6289560198783875, "sibling_score": 0.6289560198783875, "answer_score": 0.5073159456253051, "sibling_qid": "KOC-2025-07-1544-Q003", "sibling_text": "transistor testing other than diode mode", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Testing a transistor — and testing it other than in diode mode", "cross_family": false } ] }, { "qid": "KOL-2025-08-2834-Q005", "text": "T/C rpm sensor how it works?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Encoders", "tid": "KOL-2025-08-2834", "tray": "new", "candidates": [ { "answer_id": "TCS-059-P04-011", "score": 0.6346144676208496, "sibling_score": 0.6346144676208496, "answer_score": 0.5127999633550644, "sibling_qid": "KOL-2025-10-2015-Q005", "sibling_text": "t c rpm how measured working principle", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharger speed (rpm) measurement", "cross_family": true }, { "answer_id": "EPC-P03-006", "score": 0.5967863202095032, "sibling_score": 0.5967863202095032, "answer_score": 0.5096161901950836, "sibling_qid": "KOL-2026-05-4089-Q009", "sibling_text": "how rpm indicator of turbocharger tachometer working principle", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "How does a tachometer work — working principle and location — and what is a tacho-generator?", "cross_family": false }, { "answer_id": "ANG-ENC-003", "score": 0.563988208770752, "sibling_score": 0.563988208770752, "answer_score": 0.5125730395317077, "sibling_qid": "KOC-2026-02-2092-Q012", "sibling_text": "angle encoders what senses the rpm and direction", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Working principle: sensing crank angle, speed and direction", "cross_family": true } ] }, { "qid": "KOL-2025-08-2835-Q002", "text": "turbocharger rpm indicator how does it work and where it is fitted ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Encoders", "tid": "KOL-2025-08-2835", "tray": "review", "candidates": [ { "answer_id": "EPC-P03-006", "score": 0.7362208962440491, "sibling_score": 0.7362208962440491, "answer_score": null, "sibling_qid": "KOL-2026-05-4089-Q009", "sibling_text": "how rpm indicator of turbocharger tachometer working principle", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "How does a tachometer work — working principle and location — and what is a tacho-generator?", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-011", "score": 0.7188389301300049, "sibling_score": 0.7188389301300049, "answer_score": 0.6569240510463714, "sibling_qid": "KOL-2024-01-4033-Q002", "sibling_text": "turbocharger rpm indicator how does it work and where it is fitted", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "11. Turbocharger RPM indicator — how it works and where it is fitted", "cross_family": true }, { "answer_id": "TCS-059-P04-011", "score": 0.6527408957481384, "sibling_score": 0.6527408957481384, "answer_score": 0.5775212824344634, "sibling_qid": "MUM-2026-05-3330-Q005", "sibling_text": "how the me turbocharger rpm is measured", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharger speed (rpm) measurement", "cross_family": true } ] }, { "qid": "KOL-2025-08-2835-Q006", "text": "what is diode and how to test the diode?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Zener / Diode / Rectifier", "tid": "KOL-2025-08-2835", "tray": "review", "candidates": [ { "answer_id": "EPC-P01-02", "score": 0.7158907055854797, "sibling_score": 0.7158907055854797, "answer_score": null, "sibling_qid": "CHE-2026-05-0627-Q008", "sibling_text": "diode testing", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Types of diodes, and where diodes are used on board", "cross_family": false }, { "answer_id": "EPC-P02-01", "score": 0.6521548628807068, "sibling_score": 0.6521548628807068, "answer_score": null, "sibling_qid": "KOL-2022-08-2593-Q004", "sibling_text": "what is zener diode how diode test onboard", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a zener diode? Draw its symbol, explain its working principle, and draw and explain its characteristic curve including the zener (breakdown) voltage.", "cross_family": false }, { "answer_id": "GMCM-583-A-006", "score": 0.645706832408905, "sibling_score": 0.645706832408905, "answer_score": 0.4996362030506134, "sibling_qid": "KOC-2025-11-1652-Q001", "sibling_text": "how to test diodes and transistors using a multimeter", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "06. Testing diodes and transistors with a multimeter", "cross_family": false } ] }, { "qid": "KOL-2025-08-2835-Q007", "text": "Ex i(a) & i(b) ?", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOL-2025-08-2835", "tray": "new", "candidates": [ { "answer_id": "EXD-EXI-A-002", "score": 0.6138736009597778, "sibling_score": 0.6138736009597778, "answer_score": null, "sibling_qid": "KOC-2025-05-2064-Q007", "sibling_text": "ex i and exd", "sibling_family": "", "via": "sibling", "answer_title": "Ex d (flameproof / explosion-proof) — construction, shipboard applications and maintenance", "cross_family": false }, { "answer_id": "HAZ-EX-B-001", "score": 0.6028037071228027, "sibling_score": 0.6028037071228027, "answer_score": null, "sibling_qid": "KOL-2021-04-2443-Q001", "sibling_text": "ex i what denotes i", "sibling_family": "", "via": "sibling", "answer_title": "Intrinsically safe (Ex i) equipment — what it is, how it works, where it is used, how you identify it", "cross_family": false }, { "answer_id": "EXD-EXI-A-001", "score": 0.5988020896911621, "sibling_score": 0.5988020896911621, "answer_score": null, "sibling_qid": "KOL-2025-12-2942-Q001", "sibling_text": "ex d and ex i", "sibling_family": "", "via": "sibling", "answer_title": "Ex i (intrinsically safe) vs Ex d (flameproof / explosion-proof) — the difference", "cross_family": false } ] }, { "qid": "KOL-2025-08-2835-Q009", "text": "Diode test ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Zener / Diode / Rectifier", "tid": "KOL-2025-08-2835", "tray": "review", "candidates": [ { "answer_id": "EPC-P01-02", "score": 0.7323091626167297, "sibling_score": 0.7323091626167297, "answer_score": null, "sibling_qid": "CHE-2026-05-0627-Q008", "sibling_text": "diode testing", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Types of diodes, and where diodes are used on board", "cross_family": false }, { "answer_id": "EPC-P02-01", "score": 0.6372507214546204, "sibling_score": 0.6372507214546204, "answer_score": null, "sibling_qid": "KOL-2022-08-2593-Q004", "sibling_text": "what is zener diode how diode test onboard", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a zener diode? Draw its symbol, explain its working principle, and draw and explain its characteristic curve including the zener (breakdown) voltage.", "cross_family": false }, { "answer_id": "TC-A-004", "score": 0.628956139087677, "sibling_score": 0.628956139087677, "answer_score": 0.5073159456253051, "sibling_qid": "KOC-2025-07-1544-Q003", "sibling_text": "transistor testing other than diode mode", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Testing a transistor — and testing it other than in diode mode", "cross_family": false } ] }, { "qid": "KOL-2025-08-2835-Q012", "text": "What is a diode and how to test it ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Zener / Diode / Rectifier", "tid": "KOL-2025-08-2835", "tray": "review", "candidates": [ { "answer_id": "EPC-P01-02", "score": 0.7099459767341614, "sibling_score": 0.7099459767341614, "answer_score": null, "sibling_qid": "CHE-2026-05-0627-Q008", "sibling_text": "diode testing", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Types of diodes, and where diodes are used on board", "cross_family": false }, { "answer_id": "GMCM-583-A-006", "score": 0.6472872495651245, "sibling_score": 0.6472872495651245, "answer_score": 0.5015289574861527, "sibling_qid": "KOC-2025-11-1652-Q001", "sibling_text": "how to test diodes and transistors using a multimeter", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "06. Testing diodes and transistors with a multimeter", "cross_family": false }, { "answer_id": "EPC-P02-01", "score": 0.6427924633026123, "sibling_score": 0.6427924633026123, "answer_score": null, "sibling_qid": "KOL-2022-08-2593-Q004", "sibling_text": "what is zener diode how diode test onboard", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a zener diode? Draw its symbol, explain its working principle, and draw and explain its characteristic curve including the zener (breakdown) voltage.", "cross_family": false } ] }, { "qid": "KOL-2025-08-2835-Q013", "text": "Ex i(a) & i(b) ?", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOL-2025-08-2835", "tray": "new", "candidates": [ { "answer_id": "EXD-EXI-A-002", "score": 0.6138735413551331, "sibling_score": 0.6138735413551331, "answer_score": null, "sibling_qid": "KOC-2025-05-2064-Q007", "sibling_text": "ex i and exd", "sibling_family": "", "via": "sibling", "answer_title": "Ex d (flameproof / explosion-proof) — construction, shipboard applications and maintenance", "cross_family": false }, { "answer_id": "HAZ-EX-B-001", "score": 0.6028037071228027, "sibling_score": 0.6028037071228027, "answer_score": null, "sibling_qid": "KOL-2021-04-2443-Q001", "sibling_text": "ex i what denotes i", "sibling_family": "", "via": "sibling", "answer_title": "Intrinsically safe (Ex i) equipment — what it is, how it works, where it is used, how you identify it", "cross_family": false }, { "answer_id": "EXD-EXI-A-001", "score": 0.5988020896911621, "sibling_score": 0.5988020896911621, "answer_score": null, "sibling_qid": "KOL-2025-12-2942-Q001", "sibling_text": "ex d and ex i", "sibling_family": "", "via": "sibling", "answer_title": "Ex i (intrinsically safe) vs Ex d (flameproof / explosion-proof) — the difference", "cross_family": false } ] }, { "qid": "KOL-2025-08-2835-Q014", "text": "Turbocharger rpm indicator how does it work and where it is fitted ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Encoders", "tid": "KOL-2025-08-2835", "tray": "review", "candidates": [ { "answer_id": "EPC-P03-006", "score": 0.7362209558486938, "sibling_score": 0.7362209558486938, "answer_score": null, "sibling_qid": "KOL-2026-05-4089-Q009", "sibling_text": "how rpm indicator of turbocharger tachometer working principle", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "How does a tachometer work — working principle and location — and what is a tacho-generator?", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-011", "score": 0.7188389301300049, "sibling_score": 0.7188389301300049, "answer_score": 0.6569240510463714, "sibling_qid": "KOL-2024-01-4033-Q002", "sibling_text": "turbocharger rpm indicator how does it work and where it is fitted", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "11. Turbocharger RPM indicator — how it works and where it is fitted", "cross_family": true }, { "answer_id": "TCS-059-P04-011", "score": 0.6527408957481384, "sibling_score": 0.6527408957481384, "answer_score": 0.5775213330984116, "sibling_qid": "MUM-2026-05-3330-Q005", "sibling_text": "how the me turbocharger rpm is measured", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharger speed (rpm) measurement", "cross_family": true } ] }, { "qid": "KOL-2025-08-2837-Q004", "text": "ICCP components ?", "family": "Electrical - ICCP & Cathodic Protection", "subtopic": "ICCP", "tid": "KOL-2025-08-2837", "tray": "review", "candidates": [ { "answer_id": "ICCP-119-P01-002", "score": 0.7362503409385681, "sibling_score": 0.7362503409385681, "answer_score": 0.49104126691818234, "sibling_qid": "MUM-2024-01-1421-Q004", "sibling_text": "iccp complete working with components", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP circuit / control arrangement, construction and main components", "cross_family": false }, { "answer_id": "ICCP-119-P01-001", "score": 0.662598192691803, "sibling_score": 0.662598192691803, "answer_score": 0.4059168666601181, "sibling_qid": "MUM-2025-09-1642-Q004", "sibling_text": "function of iccp", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP — purpose, principle and basic working", "cross_family": false }, { "answer_id": "ICCP-119-P01-003", "score": 0.35821103453636166, "sibling_score": null, "answer_score": 0.35821103453636166, "sibling_qid": "", "sibling_text": "iccp values impressed current meaning anode cathode roles and materials", "sibling_family": "", "via": "answer_title", "answer_title": "ICCP values, impressed-current meaning, anode/cathode roles and materials", "cross_family": false } ] }, { "qid": "KOL-2025-08-2840-Q003", "text": "Explain about all the explosion protection devices Ex(d) Ex(p) Ex(s) Ex(q) ? Explain risk criterion in Zone 0 , Zone 1 , Zone 2 ?", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOL-2025-08-2840", "tray": "review", "candidates": [ { "answer_id": "EXD-EXI-A-002", "score": 0.6566596031188965, "sibling_score": 0.6566596031188965, "answer_score": null, "sibling_qid": "KOC-2025-01-0521-Q009", "sibling_text": "explosion proof notations exd exe", "sibling_family": "", "via": "sibling", "answer_title": "Ex d (flameproof / explosion-proof) — construction, shipboard applications and maintenance", "cross_family": false }, { "answer_id": "SAE-388-001", "score": 0.5824358463287354, "sibling_score": 0.5824358463287354, "answer_score": null, "sibling_qid": "CHE-2026-02-0483-Q010", "sibling_text": "starting air explosion protection", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "What safeties are fitted on the main engine starting air line?", "cross_family": false }, { "answer_id": "EXD-EXI-A-001", "score": 0.5754326581954956, "sibling_score": 0.5754326581954956, "answer_score": 0.5268977642059326, "sibling_qid": "MUM-2023-04-1382-Q001", "sibling_text": "what s is explosion proof and intrinsically safe difference", "sibling_family": "", "via": "sibling", "answer_title": "Ex i (intrinsically safe) vs Ex d (flameproof / explosion-proof) — the difference", "cross_family": false } ] }, { "qid": "KOL-2025-08-2841-Q003", "text": "How to test a diode ? How to know positive and negative phase? If digital multimeter not present? How to test ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Zener / Diode / Rectifier", "tid": "KOL-2025-08-2841", "tray": "review", "candidates": [ { "answer_id": "EPC-P01-02", "score": 0.7152900695800781, "sibling_score": 0.7152900695800781, "answer_score": null, "sibling_qid": "CHE-2026-05-0627-Q008", "sibling_text": "diode testing", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Types of diodes, and where diodes are used on board", "cross_family": false }, { "answer_id": "FUSE-HRC-005", "score": 0.708336591720581, "sibling_score": 0.708336591720581, "answer_score": null, "sibling_qid": "KOL-2023-12-2684-Q008", "sibling_text": "hrc fuse material made how different from normal fuse 8 how to test a diode how to know positive and negetive phase if digital multimeter not present how to test", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Fuse vs other protective devices (relay, breaker, contactor, thermistor); and HRC vs HBC", "cross_family": true }, { "answer_id": "GMCM-583-A-006", "score": 0.6810513138771057, "sibling_score": 0.6810513138771057, "answer_score": 0.5102889060974121, "sibling_qid": "KOC-2025-11-1652-Q001", "sibling_text": "how to test diodes and transistors using a multimeter", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "06. Testing diodes and transistors with a multimeter", "cross_family": false } ] }, { "qid": "KOL-2025-08-2842-Q002", "text": "Explain Exi a and b and differences?", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOL-2025-08-2842", "tray": "new", "candidates": [ { "answer_id": "EECS-002", "score": 0.5224050283432007, "sibling_score": 0.5224050283432007, "answer_score": 0.29409611225128174, "sibling_qid": "CHE-2026-09-3905-Q002", "sibling_text": "eexi and cii only differences", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "02. Differentiate EEXI and CII", "cross_family": false }, { "answer_id": "EXD-EXI-A-001", "score": 0.5202887058258057, "sibling_score": 0.5202887058258057, "answer_score": null, "sibling_qid": "KOC-2023-03-1241-Q002", "sibling_text": "exd and exi explain application of both", "sibling_family": "", "via": "sibling", "answer_title": "Ex i (intrinsically safe) vs Ex d (flameproof / explosion-proof) — the difference", "cross_family": false }, { "answer_id": "EECS-001", "score": 0.48264169692993164, "sibling_score": 0.48264169692993164, "answer_score": null, "sibling_qid": "MUM-2024-09-0203-Q002", "sibling_text": "eexi eedi differences", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "01. Differentiate EEDI and EEXI — formula and units of each", "cross_family": false } ] }, { "qid": "KOL-2025-08-2843-Q002", "text": "Exi a & Exi b ?", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOL-2025-08-2843", "tray": "new", "candidates": [ { "answer_id": "EXD-EXI-A-001", "score": 0.5981358289718628, "sibling_score": 0.5981358289718628, "answer_score": null, "sibling_qid": "CHE-2026-02-0335-Q007", "sibling_text": "exi and exd", "sibling_family": "", "via": "sibling", "answer_title": "Ex i (intrinsically safe) vs Ex d (flameproof / explosion-proof) — the difference", "cross_family": false }, { "answer_id": "EXD-EXI-A-002", "score": 0.5922373533248901, "sibling_score": 0.5922373533248901, "answer_score": null, "sibling_qid": "KOC-2024-10-1417-Q003", "sibling_text": "exi exd", "sibling_family": "", "via": "sibling", "answer_title": "Ex d (flameproof / explosion-proof) — construction, shipboard applications and maintenance", "cross_family": false }, { "answer_id": "CII-107-P04-003", "score": 0.5401595830917358, "sibling_score": 0.5401595830917358, "answer_score": null, "sibling_qid": "CHE-2026-09-3923-Q005", "sibling_text": "eexi and cii", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "CII within the family — EEXI, EEDI, SEEMP, DCS, the GHG strategy and the regional rules", "cross_family": false } ] }, { "qid": "KOL-2025-08-2843-Q007", "text": "Brushless alternator ? working, arrangement, principle ?", "family": "Electrical - Generator & Alternator", "subtopic": "Brushless Alternator", "tid": "KOL-2025-08-2843", "tray": "review", "candidates": [ { "answer_id": "BRUSHALT-A-001", "score": 0.8062196969985962, "sibling_score": 0.8062196969985962, "answer_score": 0.6311822563409805, "sibling_qid": "KOL-2025-12-2934-Q005", "sibling_text": "brushless alternator working principle", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01 · Working principle of the brushless alternator / brushless excitation systemHigh", "cross_family": false }, { "answer_id": "BL-ALT-C-001", "score": 0.7864821553230286, "sibling_score": 0.7864821553230286, "answer_score": null, "sibling_qid": "KOL-2021-03-2432-Q002", "sibling_text": "brushless alternator only tell electrical advantage", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Electrical advantages of brushless excitation over brushed / static", "cross_family": false }, { "answer_id": "ALT-GEN-P03-003", "score": 0.5958926886320114, "sibling_score": null, "answer_score": 0.5958926886320114, "sibling_qid": "", "sibling_text": "brushless alternator advantages and brushed vs brushless comparison brushed dc excitation reaches rotor through brushes and slip rings brushless avr feeds exciter field exciter output is rectified by rotating diodes to feed main rotor", "sibling_family": "", "via": "answer_title", "answer_title": "Brushless alternator advantages and brushed vs brushless comparison", "cross_family": false } ] }, { "qid": "KOL-2025-08-2843-Q016", "text": "EXI(A)& EXI (B) ?", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOL-2025-08-2843", "tray": "new", "candidates": [ { "answer_id": "EXD-EXI-A-001", "score": 0.598135769367218, "sibling_score": 0.598135769367218, "answer_score": null, "sibling_qid": "CHE-2026-02-0335-Q007", "sibling_text": "exi and exd", "sibling_family": "", "via": "sibling", "answer_title": "Ex i (intrinsically safe) vs Ex d (flameproof / explosion-proof) — the difference", "cross_family": false }, { "answer_id": "EXD-EXI-A-002", "score": 0.5922372937202454, "sibling_score": 0.5922372937202454, "answer_score": null, "sibling_qid": "KOC-2024-10-1417-Q003", "sibling_text": "exi exd", "sibling_family": "", "via": "sibling", "answer_title": "Ex d (flameproof / explosion-proof) — construction, shipboard applications and maintenance", "cross_family": false }, { "answer_id": "CII-107-P04-003", "score": 0.5401595830917358, "sibling_score": 0.5401595830917358, "answer_score": null, "sibling_qid": "CHE-2026-09-3923-Q005", "sibling_text": "eexi and cii", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "CII within the family — EEXI, EEDI, SEEMP, DCS, the GHG strategy and the regional rules", "cross_family": false } ] }, { "qid": "KOL-2025-08-3850-Q003", "text": "Rudder checks as a 2nd engineer ? after repair what checks … how to find out leakage.? lot of cross question….", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2025-08-3850", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.7462421655654907, "sibling_score": 0.7462421655654907, "answer_score": null, "sibling_qid": "MUM-2026-09-3946-Q013", "sibling_text": "drydock as 2e what all checks on rudder many cross 6creep location remedy", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "PCD-P03-04", "score": 0.740830659866333, "sibling_score": 0.740830659866333, "answer_score": null, "sibling_qid": "MUM-2026-07-3733-Q010", "sibling_text": "how to find leakage in rudder", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Gland packing — types, and gland leakage that persists after re-packing", "cross_family": true }, { "answer_id": "DUS-P5-05", "score": 0.5781212449073792, "sibling_score": null, "answer_score": 0.5781212449073792, "sibling_qid": "", "sibling_text": "rudder checks and rudder blade tightness leak test in drydock visual checks coating condition cavitation erosion on the blade leading edge propeller side face sacrificial anodes against the approved cathodic protection plan grounding continuity against the approved acceptance criterion plate and weld cracks pintle clearance measured with feeler the numerical acceptance limit is class specific and ", "sibling_family": "", "via": "answer_title", "answer_title": "Rudder checks and rudder-blade tightness/leak test in drydock", "cross_family": false } ] }, { "qid": "KOL-2025-08-3851-Q002", "text": "boiler safety valve settings,step by step procedure cross questions", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2025-08-3851", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-001", "score": 0.830737292766571, "sibling_score": 0.830737292766571, "answer_score": null, "sibling_qid": "KOC-2026-05-0003-Q005", "sibling_text": "boiler safety valve setting procedure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.8126534819602966, "sibling_score": 0.8126534819602966, "answer_score": null, "sibling_qid": "KOL-2026-01-3904-Q003", "sibling_text": "setting of boiler safety valve cross questions in high lift safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.8100464940071106, "sibling_score": 0.8100464940071106, "answer_score": null, "sibling_qid": "CHE-2026-05-0568-Q013", "sibling_text": "boiler safety valve how you confirm the proper setting of safety valve engineer observation", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false } ] }, { "qid": "KOL-2025-08-3851-Q005", "text": "■ME turbocharger bearings types,roller bearings and ball bearings, reasons to use cross questions", "family": "Turbocharger", "subtopic": "TC Bearing", "tid": "KOL-2025-08-3851", "tray": "review", "candidates": [ { "answer_id": "TURBO-CS-P03-008", "score": 0.7360406517982483, "sibling_score": 0.7360406517982483, "answer_score": 0.6262881696224213, "sibling_qid": "CHE-2026-03-0181-Q012", "sibling_text": "turbocharger types of bearing", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharger bearings: types, lubrication, damage and action", "cross_family": false }, { "answer_id": "BRG-NOM-002", "score": 0.7251011729240417, "sibling_score": 0.7251011729240417, "answer_score": 0.5809936374425888, "sibling_qid": "MUM-2026-06-3376-Q016", "sibling_text": "for which thrust it s used difference b w ball and roller bearing", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Ball, Roller, Radial and Axial Bearings — Choosing the Type", "cross_family": false }, { "answer_id": "TCS-059-P04-006", "score": 0.7208091020584106, "sibling_score": 0.7208091020584106, "answer_score": 0.617190545797348, "sibling_qid": "KOL-2023-12-3665-Q003", "sibling_text": "in radial turbocharger what kind of bearing used arrangement for axial thrust", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Bearings and axial thrust (radial turbocharger)", "cross_family": false } ] }, { "qid": "KOL-2025-08-3853-Q001", "text": "In your watch you found boiler Guage glass have oil your immidiate action and how you identity the source", "family": "Boilers - Operations & Firing", "subtopic": "Scum / Blow Down", "tid": "KOL-2025-08-3853", "tray": "review", "candidates": [ { "answer_id": "SBD-001", "score": 0.77034592628479, "sibling_score": 0.77034592628479, "answer_score": 0.5663024604320526, "sibling_qid": "KOL-2016-11-3017-Q005", "sibling_text": "by bnd oil in boiler gauge glass course of actions", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "You find oil in the boiler gauge glass — causes, how you identify the source, and your actions as 2/E (including if manoeuvring). What is carryover?", "cross_family": false }, { "answer_id": "CASC-COND-001", "score": 0.4937931805849075, "sibling_score": null, "answer_score": 0.4937931805849075, "sibling_qid": "", "sibling_text": "oil found in the cascade tank hotwell or observation tank actions tracing the source and preventing ingress first action is protection not diagnosis stop feeding contaminated water change over to clean feed or feed direct bypass the cascade tank inform the chief skim off and dump the oily water do not let it reach the feed pump", "sibling_family": "", "via": "answer_title", "answer_title": "Oil found in the cascade tank, hotwell or observation tank — actions, tracing the source, and preventing ingress", "cross_family": false }, { "answer_id": "BCFS-001", "score": 0.4854350984096527, "sibling_score": null, "answer_score": 0.4854350984096527, "sibling_qid": "", "sibling_text": "detecting and responding to oil contamination in the hot well or cascade tank detect oil film or sheen on the observation tank surface smell oiliness in the gauge glass oil in water monitor alarm if fitted foaming or an unstable boiler water level never let oil into the boiler it forms an insulating film on heating surfaces causing local overheating tube bulging and failure and it makes the water ", "sibling_family": "", "via": "answer_title", "answer_title": "Detecting and responding to oil contamination in the hot well or cascade tank", "cross_family": false } ] }, { "qid": "KOL-2025-08-3853-Q004", "text": "Setting of boiler safety valve", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2025-08-3853", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-001", "score": 0.8565627932548523, "sibling_score": 0.8565627932548523, "answer_score": null, "sibling_qid": "MUM-2026-05-3281-Q004", "sibling_text": "setting of boiler safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.8161737322807312, "sibling_score": 0.8161737322807312, "answer_score": null, "sibling_qid": "MUM-2026-03-2935-Q013", "sibling_text": "boiler safety valve setting in presence of surveyor after survey", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.8018604516983032, "sibling_score": 0.8018604516983032, "answer_score": null, "sibling_qid": "KOC-2026-05-0034-Q010", "sibling_text": "boiler safety valve types and how safety valve is set complete procedures", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOL-2025-08-3854-Q003", "text": "Cast iron welding ?", "family": "Workshop & Welding", "subtopic": "Cast Iron Welding", "tid": "KOL-2025-08-3854", "tray": "review", "candidates": [ { "answer_id": "WELD-B-001", "score": 0.8306350111961365, "sibling_score": 0.8306350111961365, "answer_score": 0.548031622171402, "sibling_qid": "MUM-2026-05-3209-Q007", "sibling_text": "cast iron welding", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding & crack-repair of aluminium and cast iron, including metal stitching", "cross_family": false }, { "answer_id": "LH-ELEC-006", "score": 0.5098121583461761, "sibling_score": null, "answer_score": 0.5098121583461761, "sibling_qid": "", "sibling_text": "6 how would you approach a cast iron valve repair when the examiner probes welding and low hydrogen electrodes first response replace or fit a sound same size valve a welded cast iron repair is a stop gap not equal to new if welding cast iron not a plain mild steel low hydrogen rod the high carbon makes a hard brittle cracking weld", "sibling_family": "", "via": "answer_title", "answer_title": "6. How would you approach a cast-iron valve repair when the examiner probes welding and low-hydrogen electrodes?", "cross_family": false }, { "answer_id": "METAL-LOCK-001", "score": 0.4936324745416641, "sibling_score": null, "answer_score": 0.4936324745416641, "sibling_qid": "", "sibling_text": "what is metal locking stitching why use it materials benefits cold process zero heat applied at any stage for brittle cast iron and other castings where welding risks further cracking or a brittle heat affected zone", "sibling_family": "", "via": "answer_title", "answer_title": "What is metal locking / stitching, why use it, materials & benefits", "cross_family": false } ] }, { "qid": "KOL-2025-08-3854-Q007", "text": "FQS sensor on your main engine DF engine. Not sure about . Waiting", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Quality / CCAI", "tid": "KOL-2025-08-3854", "tray": "new", "candidates": [ { "answer_id": "FIVA-220-002", "score": 0.5677303671836853, "sibling_score": 0.5677303671836853, "answer_score": null, "sibling_qid": "KOL-2023-10-3640-Q007", "sibling_text": "which engine you have sailed on tell me how me engine will time the fuel injection lots of x quest on angle encoder fiva valve control signal coming from where what type of valve is fiva solenoid lots of x ques on valve timing signal", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "FIVA control of fuel injection — timing, quantity and actuation", "cross_family": false }, { "answer_id": "TPL-SENS-B-002", "score": 0.5354864597320557, "sibling_score": 0.5354864597320557, "answer_score": null, "sibling_qid": "KOC-2023-07-1266-Q004", "sibling_text": "what type of sensor in main engine exhaust how it is transmitting circuit diagram internal paul sir explain jacket water cascade control what type of sensor is used", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Sensors, transducers & transmitters — and why 4–20 mA", "cross_family": true }, { "answer_id": "FCL-P03-003", "score": 0.5350450277328491, "sibling_score": 0.5350450277328491, "answer_score": null, "sibling_qid": "KOC-2025-01-1893-Q002", "sibling_text": "how to check fuel pump timing of main engine i told i wl explain sulzer he told you have done man and you want to tell sulzer i told i can tell man he told go ahead with sulzer", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Sulzer / RTA fuel pump timing and lead", "cross_family": false } ] }, { "qid": "KOL-2025-08-3855-Q005", "text": "Exhaust valve actuator damaged, how to proceed?", "family": "2-Stroke - Exhaust, Valve & Starting Air", "subtopic": "Exhaust Valve", "tid": "KOL-2025-08-3855", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.7544471025466919, "sibling_score": 0.7544471025466919, "answer_score": null, "sibling_qid": "KOL-2023-09-3638-Q003", "sibling_text": "exhast valve actuator damaged how to run engine", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "EXV-P02-001", "score": 0.6664509177207947, "sibling_score": 0.6664509177207947, "answer_score": 0.5078273475170135, "sibling_qid": "KOC-2021-07-1764-Q002", "sibling_text": "exhaust valve overhaul and checks before fitting back", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve overhaul & dismantling — procedure and precautions", "cross_family": false }, { "answer_id": "EXHV-297-002", "score": 0.6555982232093811, "sibling_score": 0.6555982232093811, "answer_score": 0.48719597458839414, "sibling_qid": "MUM-2025-03-0242-Q005", "sibling_text": "exhaust valve actuator checks", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Actuator parts, throttle/damper, air-spring failure & back-up", "cross_family": false } ] }, { "qid": "KOL-2025-08-3856-Q003", "text": "boiler gauge glass oil action and how to trace it ?", "family": "Boilers - Operations & Firing", "subtopic": "Scum / Blow Down", "tid": "KOL-2025-08-3856", "tray": "review", "candidates": [ { "answer_id": "SBD-001", "score": 0.7885367274284363, "sibling_score": 0.7885367274284363, "answer_score": 0.5703682929277419, "sibling_qid": "KOL-2022-10-3576-Q003", "sibling_text": "oil traces in boiler guage glass action", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "You find oil in the boiler gauge glass — causes, how you identify the source, and your actions as 2/E (including if manoeuvring). What is carryover?", "cross_family": false }, { "answer_id": "BLR-GG-005", "score": 0.4904356300830841, "sibling_score": null, "answer_score": 0.4904356300830841, "sibling_qid": "", "sibling_text": "what checks are made on a gauge glass during boiler survey glass erosion etching cracks clarity renew if doubtful don t pass a marginal glass cocks steam water drain free full bore not choked prove by blow through", "sibling_family": "", "via": "answer_title", "answer_title": "What checks are made on a gauge glass during boiler survey?", "cross_family": false }, { "answer_id": "CASC-COND-005", "score": 0.48337059319019315, "sibling_score": null, "answer_score": 0.48337059319019315, "sibling_qid": "", "sibling_text": "why there is an observation tank and where it is and the cascade tank and cascade system explained observation tank watch the returns for oil before the boiler a sight glass oil shows as a sheen sited in the return line ahead of the feed tank often the sight glass compartment of the cascade tank cascade tank the atmospheric feed observation and collecting tank the returns cascade over trays or wei", "sibling_family": "", "via": "answer_title", "answer_title": "Why there is an observation tank and where it is, and the cascade tank and cascade system explained", "cross_family": false } ] }, { "qid": "KOL-2025-09-1028-Q003", "text": "Fin stabilizer why on large ship, why not passive tank .. disadvantage of fin stabilizer", "family": "", "subtopic": "Anti-Roll Tank / Stabiliser", "tid": "KOL-2025-09-1028", "tray": "new", "candidates": [ { "answer_id": "PAR-ROLL-003", "score": 0.5439638495445251, "sibling_score": 0.5439638495445251, "answer_score": 0.4291415750980377, "sibling_qid": "MUM-2025-11-2867-Q007", "sibling_text": "parametric rolling in detail reasons why not on other ships", "sibling_family": "", "via": "sibling", "answer_title": "03. 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Where mentioned & under which convention?", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOL-2025-09-1056", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-010", "score": 0.4862908124923706, "sibling_score": 0.4862908124923706, "answer_score": 0.24558725655078886, "sibling_qid": "MUM-2026-08-3834-Q008", "sibling_text": "fair wages how decided", "sibling_family": "MLC", "via": "sibling", "answer_title": "SEA, the CBA parties, and how wages are set — action on non-payment", "cross_family": false }, { "answer_id": "MLC-WRH-B-011", "score": 0.4223741292953491, "sibling_score": 0.4223741292953491, "answer_score": null, "sibling_qid": "CHE-2025-08-0031-Q018", "sibling_text": "regarding food and grievance which convention", "sibling_family": "MLC", "via": "sibling", "answer_title": "The on-board complaint and grievance procedure", "cross_family": false }, { "answer_id": "MLC-WRH-B-002", "score": 0.4122284948825836, "sibling_score": 0.4122284948825836, "answer_score": null, "sibling_qid": "MUM-2022-07-0027-Q005", "sibling_text": "mlc 2006 wages rest hours", "sibling_family": "MLC", "via": "sibling", "answer_title": "Work and rest hours under MLC — the criteria, the weekly limit, the intervals", "cross_family": false } ] }, { "qid": "KOL-2025-09-1058-Q004", "text": "Flag state port state coastal state difference, Type of survey done by flag state, If flag state enforcing compliance then why port state. What all checks psc do,what coastal state do.", "family": "Surveys - Statutory", "subtopic": "PSC / Flag / RO / CIC / MoU", "tid": "KOL-2025-09-1058", "tray": "review", "candidates": [ { "answer_id": "PSC-SURV-P01-004", "score": 0.7382165193557739, "sibling_score": 0.7382165193557739, "answer_score": 0.5483401656150818, "sibling_qid": "KOL-2025-09-1061-Q008", "sibling_text": "port state coastal state flag state", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the difference between flag State, port State and coastal State control?", "cross_family": false }, { "answer_id": "UNCLOS-005", "score": 0.6980763673782349, "sibling_score": 0.6980763673782349, "answer_score": null, "sibling_qid": "MUM-2024-09-0209-Q008", "sibling_text": "flag state port state and coastal state by internal", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is a coastal state under UNCLOS, and how does it differ from the flag state and the port state?", "cross_family": true }, { "answer_id": "PSC-002", "score": 0.6946011185646057, "sibling_score": 0.6946011185646057, "answer_score": null, "sibling_qid": "MUM-2026-05-3311-Q005", "sibling_text": "initial survey extended survey by port state", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "2. Types, criteria and escalation of a PSC inspection", "cross_family": false } ] }, { "qid": "KOL-2025-09-1058-Q006", "text": "If a vessel is in violation of convention can it berth.", "family": "Surveys - Statutory", "subtopic": "Detention / Clear Ground", "tid": "KOL-2025-09-1058", "tray": "new", "candidates": [ { "answer_id": "CERT-LIST-P01-001", "score": 0.5033289194107056, "sibling_score": 0.5033289194107056, "answer_score": null, "sibling_qid": "MUM-2026-09-3906-Q008", "sibling_text": "if no class certificate what happened ship can sail or not", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "List the statutory certificates carried onboard a ship.", "cross_family": false }, { "answer_id": "PSC-001", "score": 0.4967198967933655, "sibling_score": 0.4967198967933655, "answer_score": null, "sibling_qid": "KOC-2024-12-0487-Q003", "sibling_text": "under which rule psc enters vessels", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "1. What is PSC, why it is required, and its legal basis and scope", "cross_family": false }, { "answer_id": "BCL-592-006", "score": 0.482059121131897, "sibling_score": 0.482059121131897, "answer_score": null, "sibling_qid": "KOL-2025-10-2021-Q014", "sibling_text": "clearance is coming zero how you will take the vessel to port rest forgot", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bearing clearance is reading zero. How do you get the vessel to port?", "cross_family": true } ] }, { "qid": "KOL-2025-09-1058-Q010", "text": "How minimum wage set for seafarers. 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reasons, your actions as 2/E, and telling which side of the cooler is leaking", "cross_family": true } ] }, { "qid": "KOL-2025-09-1062-Q007", "text": "Mlc titles name", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOL-2025-09-1062", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.618663489818573, "sibling_score": 0.618663489818573, "answer_score": 0.2429243594408035, "sibling_qid": "KOC-2026-05-2135-Q011", "sibling_text": "mlc titles explain title 1 explain dmlc part 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "MLC-WRH-B-006", "score": 0.5192234516143799, "sibling_score": 0.5192234516143799, "answer_score": null, "sibling_qid": "MUM-2026-06-3645-Q001", "sibling_text": "certificates of mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false }, { "answer_id": "ISMNC-002", "score": 0.46527281403541565, "sibling_score": 0.46527281403541565, "answer_score": null, "sibling_qid": "MUM-2026-01-0685-Q005", "sibling_text": "mlc mnc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a major non-conformity under the ISM Code? Give the definition and name some.", "cross_family": true } ] }, { "qid": "KOL-2025-09-1064-Q004", "text": "Cross devils claw how its connected how anchor is secured?How bottle srew is tightened?", "family": "", "subtopic": "Bulwark", "tid": "KOL-2025-09-1064", "tray": "new", "candidates": [ { "answer_id": "ANCH-CHN-A-004", "score": 0.5675085783004761, "sibling_score": 0.5675085783004761, "answer_score": null, "sibling_qid": "KOC-2024-01-1828-Q005", "sibling_text": "how chain connected to anchor swivel block each cable connected by d shackle", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Cable arrangement: anchor to bitter end, and the bitter-end release", "cross_family": false }, { "answer_id": "ANCH-CHN-A-006", "score": 0.5427265167236328, "sibling_score": 0.5427265167236328, "answer_score": 0.46379009187221526, "sibling_qid": "KOL-2026-09-4308-Q002", "sibling_text": "connection of anchor chain with anchor", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Holding, securing the cable for sea, and general checks", "cross_family": false }, { "answer_id": "ANCH-C-003", "score": 0.5350795865058898, "sibling_score": null, "answer_score": 0.5350795865058898, "sibling_qid": "", "sibling_text": "chain tightening relieving strain anchor home bow stopper on first devil s claw onto a link bottlescrew turnbuckle tightened to remove slack", "sibling_family": "", "via": "answer_title", "answer_title": "Chain tightening & relieving strain", "cross_family": false } ] }, { "qid": "KOL-2025-09-1065-Q003", "text": "MLC 2006, who decides wages ? And XQ", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOL-2025-09-1065", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-010", "score": 0.5667280554771423, "sibling_score": 0.5667280554771423, "answer_score": 0.20777210369706153, "sibling_qid": "MUM-2025-11-0573-Q004", "sibling_text": "how are wages set under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "SEA, the CBA parties, and how wages are set — action on non-payment", "cross_family": false }, { "answer_id": "MLC-WRH-B-002", "score": 0.5205914378166199, "sibling_score": 0.5205914378166199, "answer_score": 0.20234366431832312, "sibling_qid": "MUM-2022-07-0027-Q005", "sibling_text": "mlc 2006 wages rest hours", "sibling_family": "MLC", "via": "sibling", "answer_title": "Work and rest hours under MLC — the criteria, the weekly limit, the intervals", "cross_family": false }, { "answer_id": "MLC-WRH-B-011", "score": 0.3519341051578522, "sibling_score": 0.3519341051578522, "answer_score": null, "sibling_qid": "CHE-2026-05-0637-Q002", "sibling_text": "mlc grievance system", "sibling_family": "MLC", "via": "sibling", "answer_title": "The on-board complaint and grievance procedure", "cross_family": false } ] }, { "qid": "KOL-2025-09-1072-Q006", "text": "Difference between immersion suit and TPA", "family": "SOLAS - LSA & Lifeboats", "subtopic": "LSA Code", "tid": "KOL-2025-09-1072", "tray": "new", "candidates": [ { "answer_id": "SCBA-EEBD-005", "score": 0.5469741821289062, "sibling_score": 0.5469741821289062, "answer_score": 0.396478097140789, "sibling_qid": "KOL-2017-01-0042-Q005", "sibling_text": "difference between firemans outfit ppa immerssion suit when it is used", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fireman's outfit vs PPA vs immersion suit — what each is, when used", "cross_family": true }, { "answer_id": "LB-SURV-C-003", "score": 0.49294883012771606, "sibling_score": 0.49294883012771606, "answer_score": null, "sibling_qid": "CHE-2026-02-0103-Q002", "sibling_text": "immersion suit monthly 6 month and annual maintenance", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Routine maintenance ladder — weekly / monthly / quarterly / 6-monthly onboard checks", "cross_family": false }, { "answer_id": "LSA-LB-A-008", "score": 0.4211254119873047, "sibling_score": 0.4211254119873047, "answer_score": null, "sibling_qid": "CHE-2025-12-0328-Q005", "sibling_text": "lifeboat sprinkler system testing without immersing into water", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Water-spray (sprinkler) system — testing without launching", "cross_family": false } ] }, { "qid": "KOL-2025-09-1075-Q004", "text": "Explain Directional Stability.", "family": "SOLAS", "subtopic": "Static / Dynamic Stability", "tid": "KOL-2025-09-1075", "tray": "review", "candidates": [ { "answer_id": "STAB-D-003", "score": 0.6963859796524048, "sibling_score": 0.6963859796524048, "answer_score": 0.44663467109203336, "sibling_qid": "KOL-2023-08-0765-Q004", "sibling_text": "explain directional stability", "sibling_family": "", "via": "sibling", "answer_title": "Righting Moment, and Transverse vs Longitudinal vs Directional Stability", "cross_family": false }, { "answer_id": "STAB-D-001", "score": 0.6625211238861084, "sibling_score": 0.6625211238861084, "answer_score": null, "sibling_qid": "KOL-2021-11-0575-Q004", "sibling_text": "direction stability", "sibling_family": "", "via": "sibling", "answer_title": "General Ship Stability - How I Open Any Stability Question", "cross_family": false }, { "answer_id": "STAB-D-002", "score": 0.5726947784423828, "sibling_score": 0.5726947784423828, "answer_score": null, "sibling_qid": "KOL-2022-09-0683-Q002", "sibling_text": "directional stability criteria on what factors directional stability depends he gave hints that we do this during passing through narrow channel plz answer", "sibling_family": "", "via": "sibling", "answer_title": "Stability Criteria - How We Judge a Ship Is Stable", "cross_family": false } ] }, { "qid": "KOL-2025-09-1075-Q007", "text": "type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2025-09-1075", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8361091613769531, "sibling_score": 0.8361091613769531, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8013883233070374, "sibling_score": 0.8013883233070374, "answer_score": 0.5470469176769256, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8000956177711487, "sibling_score": 0.8000956177711487, "answer_score": 0.5211817562580109, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "KOL-2025-09-1076-Q002", "text": "orb 1 and 2", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "KOL-2025-09-1076", "tray": "new", "candidates": [ { "answer_id": "OWS-ORB-006", "score": 0.630872905254364, "sibling_score": 0.630872905254364, "answer_score": null, "sibling_qid": "KOC-2026-03-0870-Q004", "sibling_text": "orb part 2", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "6. Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-002", "score": 0.5629715323448181, "sibling_score": 0.5629715323448181, "answer_score": null, "sibling_qid": "CHE-2026-05-0543-Q003", "sibling_text": "orb in details", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "The Oil Record Book Part I — purpose, the letter codes, and how entries are made", "cross_family": false }, { "answer_id": "A6-NSEC-005", "score": 0.45364975929260254, "sibling_score": 0.45364975929260254, "answer_score": null, "sibling_qid": "KOC-2021-11-0039-Q005", "sibling_text": "seemp 1 and 2", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP — Part I, II & III", "cross_family": true } ] }, { "qid": "KOL-2025-09-1076-Q003", "text": "entries in orb 2", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "KOL-2025-09-1076", "tray": "review", "candidates": [ { "answer_id": "OWS-ORB-006", "score": 0.7377011179924011, "sibling_score": 0.7377011179924011, "answer_score": 0.23238679021596909, "sibling_qid": "MUM-2025-09-0447-Q007", "sibling_text": "orb entries", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "6. Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-002", "score": 0.673507571220398, "sibling_score": 0.673507571220398, "answer_score": 0.23678191304206847, "sibling_qid": "CHE-2024-10-0509-Q002", "sibling_text": "orb entries all in detail", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "The Oil Record Book Part I — purpose, the letter codes, and how entries are made", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-004", "score": 0.5180357098579407, "sibling_score": 0.5180357098579407, "answer_score": null, "sibling_qid": "KOC-2025-01-2059-Q013", "sibling_text": "weekly entries of orb internal", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Weekly ORB entries — the mandatory sludge retention record, the bunker entry, and what is voluntary", "cross_family": false } ] }, { "qid": "KOL-2025-09-1076-Q005", "text": "type of ship , what u were doing with coal residue", "family": "MARPOL - Annex V (Garbage)", "subtopic": "Garbage / Cargo Residue", "tid": "KOL-2025-09-1076", "tray": "new", "candidates": [ { "answer_id": "OILRES-DISCH-TOPIC467-FINAL-002", "score": 0.5558875799179077, "sibling_score": 0.5558875799179077, "answer_score": null, "sibling_qid": "KOL-2025-12-1146-Q004", "sibling_text": "oil residues disposal from ship procedure", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Transferring, disposing and discharging oil residue (sludge) — procedure and MARPOL requirement", "cross_family": true }, { "answer_id": "BFS-257-008", "score": 0.5495879650115967, "sibling_score": 0.5495879650115967, "answer_score": null, "sibling_qid": "MUM-2026-05-3277-Q009", "sibling_text": "boiler soot blowing procedure what type of boiler you had on ship auxiliary or composite", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler / EGB soot-blowing — procedure, precautions, sequence", "cross_family": true }, { "answer_id": "GARB-261-002", "score": 0.5404608845710754, "sibling_score": 0.5404608845710754, "answer_score": null, "sibling_qid": "MUM-2023-09-0129-Q006", "sibling_text": "onboard ship you have garbage management plan what all garbage you can throw overboard what abt incinerator ashes why cannot throw it ovbd", "sibling_family": "MARPOL - Annex V (Garbage)", "via": "sibling", "answer_title": "Discharge criteria — inside vs outside special areas", "cross_family": false } ] }, { "qid": "KOL-2025-09-1086-Q007", "text": "Name all the MLC certificates ?", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOL-2025-09-1086", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-006", "score": 0.7094836235046387, "sibling_score": 0.7094836235046387, "answer_score": 0.2958226129412651, "sibling_qid": "MUM-2026-06-3656-Q002", "sibling_text": "certificates under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false }, { "answer_id": "CBL-INS-B-002", "score": 0.5568520426750183, "sibling_score": 0.5568520426750183, "answer_score": null, "sibling_qid": "CHE-2026-08-3900-Q011", "sibling_text": "name all certificate which kept on board", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Layers and construction of a shipboard cable", "cross_family": true }, { "answer_id": "CERT-LIST-P01-001", "score": 0.5514856576919556, "sibling_score": 0.5514856576919556, "answer_score": null, "sibling_qid": "MUM-2026-06-3456-Q008", "sibling_text": "all statutory certificates name", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "List the statutory certificates carried onboard a ship.", "cross_family": true } ] }, { "qid": "KOL-2025-09-1086-Q008", "text": "What is DMLC Part 1 ?", "family": "MLC", "subtopic": "MLC / DMLC / Work-Rest", "tid": "KOL-2025-09-1086", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.6095241904258728, "sibling_score": 0.6095241904258728, "answer_score": 0.3296639516949654, "sibling_qid": "KOC-2025-10-2080-Q013", "sibling_text": "dmlc part 1 and part", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "ISM-ELEM-003", "score": 0.2239660620689392, "sibling_score": null, "answer_score": 0.2239660620689392, "sibling_qid": "", "sibling_text": "elements chapters structure of the ism code part a implementation the 12 elements 1 general 1 1 definitions 1 2 objectives 1 3 application 1 4 functional requirements for an sms", "sibling_family": "", "via": "answer_title", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": false }, { "answer_id": "FLAG-ST-007", "score": 0.2122647926211357, "sibling_score": null, "answer_score": 0.2122647926211357, "sibling_qid": "", "sibling_text": "flag state enforcement of mlc compliance mlc 2006 the fourth pillar with solas marpol and stcw the flag enforces it on its own ships mechanism dmlc part i flag s national requirements part ii owner s measures the maritime labour certificate which the flag or its ro issues after inspection", "sibling_family": "", "via": "answer_title", "answer_title": "Flag State enforcement of MLC compliance", "cross_family": false } ] }, { "qid": "KOL-2025-09-1086-Q009", "text": "Titles of MLC ?", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOL-2025-09-1086", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.6263675689697266, "sibling_score": 0.6263675689697266, "answer_score": 0.28444468080997465, "sibling_qid": "KOC-2026-05-2135-Q011", "sibling_text": "mlc titles explain title 1 explain dmlc part 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "MLC-WRH-B-006", "score": 0.5564916729927063, "sibling_score": 0.5564916729927063, "answer_score": null, "sibling_qid": "MUM-2026-06-3645-Q001", "sibling_text": "certificates of mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false }, { "answer_id": "ISMNC-002", "score": 0.47800755500793457, "sibling_score": 0.47800755500793457, "answer_score": null, "sibling_qid": "MUM-2026-01-0685-Q005", "sibling_text": "mlc mnc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a major non-conformity under the ISM Code? Give the definition and name some.", "cross_family": true } ] }, { "qid": "KOL-2025-09-1091-Q012", "text": "what is SMS. What is written in it (not agreed)", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOL-2025-09-1091", "tray": "review", "candidates": [ { "answer_id": "SMSFR-002", "score": 0.6524901986122131, "sibling_score": 0.6524901986122131, "answer_score": 0.30764170140027997, "sibling_qid": "KOL-2025-11-1118-Q005", "sibling_text": "what is there in sms", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the Safety Management System — the SMS manual, its contents, objectives, why it is needed onboard, and the company SMS policy?", "cross_family": false }, { "answer_id": "ISM-AUD-P02-004", "score": 0.6349846124649048, "sibling_score": 0.6349846124649048, "answer_score": null, "sibling_qid": "MUM-2022-08-0033-Q001", "sibling_text": "contents of sms", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "SMS contents, manuals, documents and drill records onboard", "cross_family": false }, { "answer_id": "ISM-SMCDOC-A-001", "score": 0.631474494934082, "sibling_score": 0.631474494934082, "answer_score": null, "sibling_qid": "MUM-2026-05-3182-Q002", "sibling_text": "what is sms", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM certificates: the DOC and SMC family", "cross_family": false } ] }, { "qid": "KOL-2025-09-2013-Q002", "text": "Status of Written & Oral", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOL-2025-09-2013", "tray": "review", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.7875964045524597, "sibling_score": 0.7875964045524597, "answer_score": null, "sibling_qid": "MUM-2026-05-3187-Q001", "sibling_text": "status of other orals and written", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.5826817154884338, "sibling_score": 0.5826817154884338, "answer_score": null, "sibling_qid": "KOC-2026-08-2106-Q001", "sibling_text": "status of written oral company type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": true }, { "answer_id": "AE-CRP-005", "score": 0.44202882051467896, "sibling_score": 0.44202882051467896, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q001", "sibling_text": "type of vessel engine make written and oral status", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": true } ] }, { "qid": "KOL-2025-09-2013-Q003", "text": "What types of ship you have sailed", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2025-09-2013", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.7721775770187378, "sibling_score": 0.7721775770187378, "answer_score": null, "sibling_qid": "CHE-2026-09-3938-Q001", "sibling_text": "types of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7362056970596313, "sibling_score": 0.7362056970596313, "answer_score": 0.47550369799137115, "sibling_qid": "KOC-2026-02-0833-Q005", "sibling_text": "types of ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7337163090705872, "sibling_score": 0.7337163090705872, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false } ] }, { "qid": "KOL-2025-09-2851-Q004", "text": "ICCP Voltage working ? Difference between normal and ICCP anodes ?", "family": "Electrical - ICCP & Cathodic Protection", "subtopic": "ICCP", "tid": "KOL-2025-09-2851", "tray": "review", "candidates": [ { "answer_id": "ICCP-119-P01-003", "score": 0.6917234063148499, "sibling_score": 0.6917234063148499, "answer_score": 0.49646109342575073, "sibling_qid": "KOC-2025-05-1535-Q008", "sibling_text": "iccp explain values of anode current and voltage", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP values, impressed-current meaning, anode/cathode roles and materials", "cross_family": false }, { "answer_id": "ICCP-P02-001", "score": 0.6711937189102173, "sibling_score": 0.6711937189102173, "answer_score": null, "sibling_qid": "KOC-2022-11-1206-Q006", "sibling_text": "iccp working what all anodes used why reference anode not consumed how potential difference is made", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP reference cell / reference electrode — purpose, material, location, selection", "cross_family": false }, { "answer_id": "SAC-ANODE-002", "score": 0.6540785431861877, "sibling_score": 0.6540785431861877, "answer_score": null, "sibling_qid": "KOL-2019-02-2261-Q003", "sibling_text": "iccp system difference between iccp and sacrificial anode system things to check on iccp value of voltage and current", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "Explain sacrificial-anode protection and compare it with ICCP.", "cross_family": false } ] }, { "qid": "KOL-2025-09-2857-Q002", "text": "One characteristics of salient pole rotor which distinguish it from others ?", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator / Generator", "tid": "KOL-2025-09-2857", "tray": "review", "candidates": [ { "answer_id": "SYNC-ASYNC-A-002", "score": 0.7106561660766602, "sibling_score": 0.7106561660766602, "answer_score": null, "sibling_qid": "KOL-2022-09-4012-Q003", "sibling_text": "salient rotor construction", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Construction and main parts of a synchronous motor", "cross_family": true }, { "answer_id": "SYNC-ASY-C-001", "score": 0.6094312071800232, "sibling_score": 0.6094312071800232, "answer_score": null, "sibling_qid": "KOC-2026-05-0028-Q013", "sibling_text": "internal synchronous motor explain both stator and rotor are stationary how the flux will cut key ans he wanted rotating magnetic field", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Working principle of a synchronous motor", "cross_family": false }, { "answer_id": "SYNC-ASYNC-A-001", "score": 0.6072266101837158, "sibling_score": 0.6072266101837158, "answer_score": null, "sibling_qid": "KOC-2026-04-1743-Q003", "sibling_text": "induction motor and synchronous motors characteristics", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Synchronous motor vs induction/asynchronous motor", "cross_family": false } ] }, { "qid": "KOL-2025-09-2857-Q004", "text": "Contractor maintenance and how you will know it’s fully closed or not?", "family": "Electrical - Protection & Relays", "subtopic": "Protection / Relays", "tid": "KOL-2025-09-2857", "tray": "new", "candidates": [ { "answer_id": "DCB-OVH-002", "score": 0.4728010296821594, "sibling_score": 0.4728010296821594, "answer_score": null, "sibling_qid": "KOC-2025-04-1909-Q007", "sibling_text": "major maintenance done during last contract", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Preparing for a complete unit overhaul or unit survey", "cross_family": true }, { "answer_id": "EXD-EXI-A-002", "score": 0.4117015600204468, "sibling_score": 0.4117015600204468, "answer_score": null, "sibling_qid": "KOC-2021-12-1157-Q006", "sibling_text": "exd its maintenance", "sibling_family": "", "via": "sibling", "answer_title": "Ex d (flameproof / explosion-proof) — construction, shipboard applications and maintenance", "cross_family": false }, { "answer_id": "WTD-001", "score": 0.4067729711532593, "sibling_score": 0.4067729711532593, "answer_score": null, "sibling_qid": "KOL-2018-09-0216-Q003", "sibling_text": "water tight doors regulation maintenance", "sibling_family": "SOLAS - Watertight & Closing Appliances", "via": "sibling", "answer_title": "What watertight doors are, the types fitted, and the SOLAS/Class requirements", "cross_family": true } ] }, { "qid": "KOL-2025-09-2861-Q005", "text": "How bus bar is insulated? Materials used ?", "family": "SOLAS", "subtopic": "MSB / ESB / Switchboard", "tid": "KOL-2025-09-2861", "tray": "review", "candidates": [ { "answer_id": "MSB-ESB-A-001", "score": 0.6612521409988403, "sibling_score": 0.6612521409988403, "answer_score": 0.41611359417438504, "sibling_qid": "MUM-2026-04-2953-Q003", "sibling_text": "bus bar insulation", "sibling_family": "", "via": "sibling", "answer_title": "Busbars: construction, arrangement, connection, checks and rating", "cross_family": false }, { "answer_id": "CABLE-INSUL-D-001", "score": 0.514518678188324, "sibling_score": 0.514518678188324, "answer_score": null, "sibling_qid": "KOC-2023-03-0175-Q008", "sibling_text": "insulation on lv mv and hv materials", "sibling_family": "", "via": "sibling", "answer_title": "Insulation: materials, classes and required properties", "cross_family": false }, { "answer_id": "HV-SYS-P05-002", "score": 0.49141258001327515, "sibling_score": 0.49141258001327515, "answer_score": null, "sibling_qid": "KOL-2025-09-2850-Q009", "sibling_text": "how to isolate busbar in hv ships", "sibling_family": "", "via": "sibling", "answer_title": "Working on the HV system: precautions, isolation and earthing before maintenance", "cross_family": false } ] }, { "qid": "KOL-2025-09-2867-Q004", "text": "How High voltage produced? brushless excitation ?IR measurement in high voltage, how much megger value used , why 5000dc why not 500 dc in Megger ?", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator / Generator", "tid": "KOL-2025-09-2867", "tray": "review", "candidates": [ { "answer_id": "IRT-C-003", "score": 0.6727793216705322, "sibling_score": 0.6727793216705322, "answer_score": null, "sibling_qid": "MUM-2025-08-1573-Q011", "sibling_text": "ir testing of motor procedure max voltage of megger for hv system", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "HV vs LV megger — choosing the test voltage", "cross_family": true }, { "answer_id": "IR-TEST-D-005", "score": 0.6637611985206604, "sibling_score": 0.6637611985206604, "answer_score": null, "sibling_qid": "MUM-2022-03-1326-Q004", "sibling_text": "why multimeter can not be used of ir measurement why only 500 v dc why not 400 what is your system voltage is 1000 v ac then how much dc required for megger", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Megger test-voltage selection — why a range of voltages, and on a tanker", "cross_family": true }, { "answer_id": "IR-TEST-B-004", "score": 0.6632053852081299, "sibling_score": 0.6632053852081299, "answer_score": 0.5457505792379379, "sibling_qid": "MUM-2026-09-3990-Q008", "sibling_text": "how megger produce 500v dc", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "How a megger works — voltage generation, ranges, battery", "cross_family": true } ] }, { "qid": "KOL-2025-09-2868-Q008", "text": "Types of DC Alternator ?", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator / Generator", "tid": "KOL-2025-09-2868", "tray": "review", "candidates": [ { "answer_id": "BL-ALT-C-003", "score": 0.7304044365882874, "sibling_score": 0.7304044365882874, "answer_score": 0.532102370262146, "sibling_qid": "KOL-2018-06-2202-Q002", "sibling_text": "brushless and static alternator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Compare excitation types: brushed / static / brushless", "cross_family": false }, { "answer_id": "ALT-GEN-P01-002", "score": 0.7188631892204285, "sibling_score": 0.7188631892204285, "answer_score": null, "sibling_qid": "KOL-2022-01-0592-Q007", "sibling_text": "type of alternator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "2. Types of generator/alternator carried onboard", "cross_family": false }, { "answer_id": "ALT-GEN-P03-005", "score": 0.7118517756462097, "sibling_score": 0.7118517756462097, "answer_score": null, "sibling_qid": "KOC-2024-12-1456-Q001", "sibling_text": "direct connected alternator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Alternator construction, parts, and direct connection", "cross_family": false } ] }, { "qid": "KOL-2025-09-2869-Q010", "text": "How you measure rpm of main engine? pickup sensor.Explain in detail working of pickup sensor?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Encoders", "tid": "KOL-2025-09-2869", "tray": "review", "candidates": [ { "answer_id": "PROX-SW-004", "score": 0.6805808544158936, "sibling_score": 0.6805808544158936, "answer_score": 0.5635182738304138, "sibling_qid": "NOI-2026-09-0007-Q005", "sibling_text": "how main engine rpm is sensed", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Speed measurement by sensor, and the proximity sensor working principle", "cross_family": true }, { "answer_id": "EPC-P03-006", "score": 0.62889164686203, "sibling_score": 0.62889164686203, "answer_score": null, "sibling_qid": "KOL-2026-05-4089-Q009", "sibling_text": "how rpm indicator of turbocharger tachometer working principle", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "How does a tachometer work — working principle and location — and what is a tacho-generator?", "cross_family": false }, { "answer_id": "TCS-059-P04-011", "score": 0.6128699779510498, "sibling_score": 0.6128699779510498, "answer_score": 0.5707084000110626, "sibling_qid": "KOL-2025-10-2015-Q005", "sibling_text": "t c rpm how measured working principle", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharger speed (rpm) measurement", "cross_family": true } ] }, { "qid": "KOL-2025-09-2873-Q005", "text": "MPU working and construction ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Encoders", "tid": "KOL-2025-09-2873", "tray": "new", "candidates": [ { "answer_id": "MGPS-001", "score": 0.46047237515449524, "sibling_score": 0.46047237515449524, "answer_score": null, "sibling_qid": "MUM-2025-05-1522-Q013", "sibling_text": "mgps working", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "Explain the MGPS — purpose, working principle, layout, and how it prevents marine growth", "cross_family": true }, { "answer_id": "ROT-STAT-A-002", "score": 0.4478071331977844, "sibling_score": 0.4478071331977844, "answer_score": null, "sibling_qid": "KOC-2023-01-1223-Q002", "sibling_text": "im construction and working", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Rotor and stator construction of a three-phase induction motor", "cross_family": true }, { "answer_id": "IND-MOT-A-002", "score": 0.43165773153305054, "sibling_score": 0.43165773153305054, "answer_score": null, "sibling_qid": "CHE-2026-03-0343-Q002", "sibling_text": "motor a working b material c construction", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "2. Construction and main parts of a three-phase induction motor", "cross_family": true } ] }, { "qid": "KOL-2025-09-2875-Q003", "text": "Where is emergency fuel tank located,what safeties are provided for the fuel tank, what is the flash point of fuel", "family": "Auxiliary Equipment", "subtopic": "Quick Closing Valve", "tid": "KOL-2025-09-2875", "tray": "new", "candidates": [ { "answer_id": "FPC-001", "score": 0.58111572265625, "sibling_score": 0.58111572265625, "answer_score": 0.5352553904056548, "sibling_qid": "KOL-2024-03-1776-Q006", "sibling_text": "flashpoint of fuel bunker fuel flashpoint", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Flash point of fuel oil, and the flash-point test methods", "cross_family": true }, { "answer_id": "TNK-SAFE-BF26-002", "score": 0.5584818124771118, "sibling_score": 0.5584818124771118, "answer_score": null, "sibling_qid": "MUM-2023-09-1400-Q003", "sibling_text": "electrical safeties installed inside cargo tank", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What safeties are provided on the cargo tanks of an oil, crude or chemical tanker?", "cross_family": true }, { "answer_id": "VENT-HD-002", "score": 0.5484659671783447, "sibling_score": 0.5484659671783447, "answer_score": null, "sibling_qid": "KOC-2021-09-2025-Q007", "sibling_text": "ballast tank vent the diagram should have a float and flame arrestor and explain its working", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Ballast tank vent head (float + screen) — draw and explain", "cross_family": false } ] }, { "qid": "KOL-2025-09-2875-Q004", "text": "What are the maintenance done on a contactor?", "family": "Electrical - Protection & Relays", "subtopic": "Protection / Relays", "tid": "KOL-2025-09-2875", "tray": "new", "candidates": [ { "answer_id": "CB033-C-001", "score": 0.6227130889892578, "sibling_score": 0.6227130889892578, "answer_score": 0.4405353397130966, "sibling_qid": "CHE-2026-05-0633-Q011", "sibling_text": "maintenance on circuit breaker", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "How do you carry out maintenance and testing on an ACB / main circuit breaker?", "cross_family": false }, { "answer_id": "PRL-594-001", "score": 0.5731311440467834, "sibling_score": 0.5731311440467834, "answer_score": null, "sibling_qid": "CHE-2026-05-0611-Q006", "sibling_text": "contactor power supply", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "What is the difference between a relay and a contactor?", "cross_family": false }, { "answer_id": "CB033-C-002", "score": 0.5647121071815491, "sibling_score": 0.5647121071815491, "answer_score": null, "sibling_qid": "KOL-2019-03-2269-Q004", "sibling_text": "maintenance on vaccum circuit breaker", "sibling_family": "", "via": "sibling", "answer_title": "How do you maintain and test a VCB / SF6 breaker, and confirm the vacuum or gas integrity?", "cross_family": false } ] }, { "qid": "KOL-2025-09-2875-Q008", "text": "What will you check in contactor ?", "family": "Electrical - Protection & Relays", "subtopic": "Protection / Relays", "tid": "KOL-2025-09-2875", "tray": "new", "candidates": [ { "answer_id": "SHFT-ERTH-300-001", "score": 0.5667928457260132, "sibling_score": 0.5667928457260132, "answer_score": null, "sibling_qid": "KOL-2023-09-2678-Q005", "sibling_text": "shaft earthing why 5 skd what will you check in contactor reverse power trip", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Purpose, principle and arrangement", "cross_family": false }, { "answer_id": "CBR-ARC-G-002", "score": 0.5453883409500122, "sibling_score": 0.5453883409500122, "answer_score": null, "sibling_qid": "KOL-2021-08-2483-Q005", "sibling_text": "how many contactors are there in acb", "sibling_family": "", "via": "sibling", "answer_title": "ACB construction, contacts, arc chutes, auxiliaries and VCB parts", "cross_family": false }, { "answer_id": "CB033-C-001", "score": 0.5422787070274353, "sibling_score": 0.5422787070274353, "answer_score": null, "sibling_qid": "MUM-2025-12-1838-Q001", "sibling_text": "acb contacor continuity test", "sibling_family": "", "via": "sibling", "answer_title": "How do you carry out maintenance and testing on an ACB / main circuit breaker?", "cross_family": false } ] }, { "qid": "KOL-2025-09-2877-Q004", "text": "ICCP working ?", "family": "Electrical - ICCP & Cathodic Protection", "subtopic": "ICCP", "tid": "KOL-2025-09-2877", "tray": "review", "candidates": [ { "answer_id": "ICCP-119-P01-001", "score": 0.7806418538093567, "sibling_score": 0.7806418538093567, "answer_score": 0.45008625388145446, "sibling_qid": "MUM-2026-06-3465-Q004", "sibling_text": "iccp working", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP — purpose, principle and basic working", "cross_family": false }, { "answer_id": "ICCP-119-P01-002", "score": 0.3893647775053978, "sibling_score": null, "answer_score": 0.3893647775053978, "sibling_qid": "", "sibling_text": "iccp circuit control arrangement construction and main components", "sibling_family": "", "via": "answer_title", "answer_title": "ICCP circuit / control arrangement, construction and main components", "cross_family": false }, { "answer_id": "ICCP-119-P01-003", "score": 0.3367210850119591, "sibling_score": null, "answer_score": 0.3367210850119591, "sibling_qid": "", "sibling_text": "iccp values impressed current meaning anode cathode roles and materials", "sibling_family": "", "via": "answer_title", "answer_title": "ICCP values, impressed-current meaning, anode/cathode roles and materials", "cross_family": false } ] }, { "qid": "KOL-2025-09-2880-Q004", "text": "How you will bypass the diodes without removing them?", "family": "Electrical - Generator & Alternator", "subtopic": "Brushless Alternator", "tid": "KOL-2025-09-2880", "tray": "new", "candidates": [ { "answer_id": "DIODESO-001", "score": 0.5649453997612, "sibling_score": 0.5649453997612, "answer_score": 0.3345288306474686, "sibling_qid": "MUM-2026-05-3003-Q003S2", "sibling_text": "diodes open while running", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Two alternators in parallel — one rotating rectifier diode goes short circuit. What happens, what if it goes open instead, and how do you know which it is?", "cross_family": false }, { "answer_id": "EPC-P01-02", "score": 0.5129010677337646, "sibling_score": 0.5129010677337646, "answer_score": 0.333888640999794, "sibling_qid": "MUM-2025-12-1793-Q003", "sibling_text": "diode and use onboard", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Types of diodes, and where diodes are used on board", "cross_family": true }, { "answer_id": "IR-TEST-305-002", "score": 0.4539451003074646, "sibling_score": 0.4539451003074646, "answer_score": 0.33398920893669126, "sibling_qid": "KOL-2026-07-4276-Q007", "sibling_text": "during alternator maintenance how will you protect the diodes wanted to hear jumper cable arrangement decider question", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Precautions, isolation and protecting the AVR, diodes and electronics", "cross_family": false } ] }, { "qid": "KOL-2025-09-2884-Q008", "text": "Brushless excitation and AVR ?", "family": "Electrical - Generator & Alternator", "subtopic": "Brushless Alternator", "tid": "KOL-2025-09-2884", "tray": "review", "candidates": [ { "answer_id": "BRUSHALT-A-001", "score": 0.6622619032859802, "sibling_score": 0.6622619032859802, "answer_score": 0.523802500963211, "sibling_qid": "KOL-2026-02-2961-Q001", "sibling_text": "brushless excitation working", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01 · Working principle of the brushless alternator / brushless excitation systemHigh", "cross_family": false }, { "answer_id": "AVR-EXC-F-001", "score": 0.6494500637054443, "sibling_score": 0.6494500637054443, "answer_score": null, "sibling_qid": "MUM-2026-04-2104-Q004", "sibling_text": "what types of avr i told carbon pile electronic avr for brushless static avr transformer miscommunication i explained static avr but was expecting brushless type but no time to explain that", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "How does a carbon-pile AVR / regulator work?", "cross_family": false }, { "answer_id": "AVR-EXC-G-002", "score": 0.6486963629722595, "sibling_score": 0.6486963629722595, "answer_score": 0.5939630508422852, "sibling_qid": "MUM-2025-05-1525-Q001", "sibling_text": "uti tape working and full form brushless alternator component why avr", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Brushless excitation: how DC reaches the rotor", "cross_family": false } ] }, { "qid": "KOL-2025-09-3858-Q005", "text": "torque wrinch calibration on board", "family": "Gauges & Tools", "subtopic": "Torque Wrench / Torque Spanner", "tid": "KOL-2025-09-3858", "tray": "review", "candidates": [ { "answer_id": "MICR-002", "score": 0.7439780235290527, "sibling_score": 0.7439780235290527, "answer_score": null, "sibling_qid": "MUM-2026-05-2998-Q007", "sibling_text": "how will you calibrate torque wrench onboard", "sibling_family": "Gauges & Tools", "via": "sibling", "answer_title": "Zero setting, calibration, error check and trueness", "cross_family": false }, { "answer_id": "ANG-ENC-004", "score": 0.6008138656616211, "sibling_score": 0.6008138656616211, "answer_score": 0.5034648776054382, "sibling_qid": "KOL-2026-04-3947-Q002", "sibling_text": "angle encoder calibration", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Checks, testing, calibration and maintenance", "cross_family": true }, { "answer_id": "RES-PROP-P02-004", "score": 0.5876463651657104, "sibling_score": 0.5876463651657104, "answer_score": null, "sibling_qid": "KOC-2025-11-2083-Q004", "sibling_text": "torsional meter working", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Ship power definitions and estimation — effective, delivered, shaft and indicated power", "cross_family": true } ] }, { "qid": "KOL-2025-09-4062-Q002", "text": "Last ship, container, about reefer containers", "family": "Refrigeration & AC", "subtopic": "Reefer Cargo Prep", "tid": "KOL-2025-09-4062", "tray": "review", "candidates": [ { "answer_id": "REEF-COMP-001", "score": 0.6876783967018127, "sibling_score": 0.6876783967018127, "answer_score": null, "sibling_qid": "KOC-2024-07-0369-Q013", "sibling_text": "low pressure cut out in reefer system internal paul sir type of ship container", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Reefer/AC compressor safeties and cut-outs — safety valve, HP and LP cut-outs", "cross_family": false }, { "answer_id": "REEF-PREP-005", "score": 0.6717811822891235, "sibling_score": 0.6717811822891235, "answer_score": 0.5528990089893341, "sibling_qid": "KOC-2024-01-1326-Q007", "sibling_text": "reefer container", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Reefer container — arrangement, air passage, ventilation and cooling types", "cross_family": false }, { "answer_id": "REF-CYC-001", "score": 0.6323961615562439, "sibling_score": 0.6323961615562439, "answer_score": null, "sibling_qid": "KOL-2020-09-1545-Q004", "sibling_text": "diff between cargo ship and passenger ship refrigeration system one more can t remember", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "1. The vapour-compression refrigeration cycle and refrigerant flow", "cross_family": false } ] }, { "qid": "KOL-2025-09-4062-Q003", "text": "Purpose of residual magnetism", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Faraday Law", "tid": "KOL-2025-09-4062", "tray": "review", "candidates": [ { "answer_id": "RES-MAG-001", "score": 0.6678297519683838, "sibling_score": 0.6678297519683838, "answer_score": 0.4617583155632019, "sibling_qid": "CHE-2026-05-0553-Q005", "sibling_text": "why we need residual magnetism", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Residual magnetism — what it is, where it is stored, how it is lost and how you restore it", "cross_family": true }, { "answer_id": "IM-TSS-P01-001", "score": 0.292059725522995, "sibling_score": null, "answer_score": 0.292059725522995, "sibling_qid": "", "sibling_text": "skew and cogging skew rotor bars angled relative to the shaft axis by roughly one slot pitch purpose prevent cogging magnetic locking teeth alignment at start reduce crawling locking at a low harmonic speed and cut noise and torque ripple", "sibling_family": "", "via": "answer_title", "answer_title": "Skew and cogging", "cross_family": false }, { "answer_id": "RES-MAG-005", "score": 0.28462998420000074, "sibling_score": null, "answer_score": 0.28462998420000074, "sibling_qid": "", "sibling_text": "how voltage builds up when the avr is not yet in function and no power is available self excitation is a bootstrap remanence residual volts avr wakes exciter field current more flux more volts until the avr regulates on a shunt machine the avr s power supply comes from the main stator sensing leads which is exactly why it needs residual volts before it can do anything", "sibling_family": "", "via": "answer_title", "answer_title": "How voltage builds up when the AVR is not yet in function and no power is available", "cross_family": false } ] }, { "qid": "KOL-2025-10-1094-Q005", "text": "Lifeboat davit test", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Davit / Release Gear", "tid": "KOL-2025-10-1094", "tray": "review", "candidates": [ { "answer_id": "LB-SDT-A-001", "score": 0.7849439978599548, "sibling_score": 0.7849439978599548, "answer_score": 0.5149515092372894, "sibling_qid": "KOC-2024-10-0425-Q008", "sibling_text": "lifeboat davit tests", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat static and dynamic test — purpose and procedure", "cross_family": false }, { "answer_id": "DRG-B-013", "score": 0.7818785309791565, "sibling_score": 0.7818785309791565, "answer_score": null, "sibling_qid": "MUM-2025-11-0560-Q004", "sibling_text": "life boat davit tests", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "The test and examination regime — and what PSC looks at", "cross_family": false }, { "answer_id": "LBT-TEST-B-004", "score": 0.7783172726631165, "sibling_score": 0.7783172726631165, "answer_score": 0.5198936760425568, "sibling_qid": "KOC-2024-02-0305-Q009", "sibling_text": "int what are the tests done on life boat davits", "sibling_family": "SOLAS - 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What is parametric rolling?", "cross_family": false }, { "answer_id": "PAR-ROLL-004", "score": 0.41488225758075714, "sibling_score": null, "answer_score": 0.41488225758075714, "sibling_qid": "", "sibling_text": "04 parametric vs synchronous rolling and the sequential prismatic variants synchronous direct forced resonance encounter period natural roll period 1 1 typically beam near beam seas driven by the wave s direct rolling moment parametric resonance from cyclic gm gz righting moment variation the principal container ship case is encounter period roll period 2 1 so stability varies at about twice the r", "sibling_family": "", "via": "answer_title", "answer_title": "04. Parametric vs synchronous rolling (and the ‘sequential / prismatic’ variants)", "cross_family": false } ] }, { "qid": "KOL-2025-10-1098-Q002", "text": "Condition of class", "family": "Surveys - Statutory", "subtopic": "Condition of Class", "tid": "KOL-2025-10-1098", "tray": "review", "candidates": [ { "answer_id": "COC-001", "score": 0.8517777323722839, "sibling_score": 0.8517777323722839, "answer_score": 0.38388580083847046, "sibling_qid": "KOC-2026-04-0899-Q005", "sibling_text": "condition of class", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is a Condition of Class? Give examples, say where it is found, how much time is given to rectify it, and what happens if it is not met in time.", "cross_family": false }, { "answer_id": "COC-002", "score": 0.8064543604850769, "sibling_score": 0.8064543604850769, "answer_score": 0.4057216838002205, "sibling_qid": "KOL-2016-12-0036-Q002", "sibling_text": "condition of class condition assessignment", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the difference between a Condition of Class and a Condition of Assignment?", "cross_family": false }, { "answer_id": "IACS-324-003", "score": 0.7033582329750061, "sibling_score": 0.7033582329750061, "answer_score": null, "sibling_qid": "KOC-2024-03-0321-Q011", "sibling_text": "how class can become ro explain conditions", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "3. What is a Recognized Organization, how is it recognized by a flag State, and how can a classification society become one?", "cross_family": false } ] }, { "qid": "KOL-2025-10-1099-Q005", "text": "Mlc part 1 and part 2", "family": "MLC", "subtopic": "MLC / DMLC / Work-Rest", "tid": "KOL-2025-10-1099", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.5610349774360657, "sibling_score": 0.5610349774360657, "answer_score": 0.29268919974565505, "sibling_qid": "MUM-2026-05-3314-Q007", "sibling_text": "dmlc part 1 and part 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "ENG-NOM-006", "score": 0.24698276966810226, "sibling_score": null, "answer_score": 0.24698276966810226, "sibling_qid": "", "sibling_text": "short form asks smc c lmc and me vs mc quickly smc c super long stroke man programme camshaft controlled compact lmc l long stroke the l is the stroke letter not a control or compact letter", "sibling_family": "", "via": "answer_title", "answer_title": "Short-form asks: SMC-C, LMC, and ME vs MC quickly", "cross_family": false }, { "answer_id": "FLAG-ST-007", "score": 0.23916788101196287, "sibling_score": null, "answer_score": 0.23916788101196287, "sibling_qid": "", "sibling_text": "flag state enforcement of mlc compliance mlc 2006 the fourth pillar with solas marpol and stcw the flag enforces it on its own ships mechanism dmlc part i flag s national requirements part ii owner s measures the maritime labour certificate which the flag or its ro issues after inspection", "sibling_family": "", "via": "answer_title", "answer_title": "Flag State enforcement of MLC compliance", "cross_family": false } ] }, { "qid": "KOL-2025-10-1102-Q002", "text": "Type of ships sailed", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2025-10-1102", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.804734468460083, "sibling_score": 0.804734468460083, "answer_score": null, "sibling_qid": "MUM-2026-02-1272-Q002", "sibling_text": "type of ships sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7896885275840759, "sibling_score": 0.7896885275840759, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7689732909202576, "sibling_score": 0.7689732909202576, "answer_score": 0.5079576551914214, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "KOL-2025-10-1105-Q001", "text": "Ship type :oil tanker", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2025-10-1105", "tray": "review", "candidates": [ { "answer_id": "COT-01", "score": 0.8210108876228333, "sibling_score": 0.8210108876228333, "answer_score": 0.5902067244052887, "sibling_qid": "KOC-2026-04-0892-Q003", "sibling_text": "type of ship sailed tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Oil-tanker types, definitions and cargo capability", "cross_family": false }, { "answer_id": "IBC-BCH-B-004", "score": 0.780596137046814, "sibling_score": 0.780596137046814, "answer_score": null, "sibling_qid": "MUM-2026-05-3156-Q001", "sibling_text": "type of ships chemical tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Certificate of Fitness and MARPOL Annex II in practice", "cross_family": false }, { "answer_id": "TKR-TYPE-004", "score": 0.7590008974075317, "sibling_score": 0.7590008974075317, "answer_score": 0.5578616946935654, "sibling_qid": "MUM-2025-12-0992-Q003", "sibling_text": "which type tanker", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "4. Tanker cargo-type classification, examples, and sweet vs sour crude", "cross_family": true } ] }, { "qid": "KOL-2025-10-1107-Q007", "text": "Factors affecting hull of ship", "family": "Ship Construction & Stability", "subtopic": "", "tid": "KOL-2025-10-1107", "tray": "review", "candidates": [ { "answer_id": "DUS-P4-01", "score": 0.7591841220855713, "sibling_score": 0.7591841220855713, "answer_score": 0.5300801694393158, "sibling_qid": "KOC-2025-10-0681-Q007", "sibling_text": "factors affecting hull of ship", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Card 1 — Factors affecting the hull of a ship, and what I look for in drydock", "cross_family": true }, { "answer_id": "SHELL-PLT-A-004", "score": 0.6496419310569763, "sibling_score": 0.6496419310569763, "answer_score": null, "sibling_qid": "MUM-2025-10-0504-Q003", "sibling_text": "hull thickness", "sibling_family": "", "via": "sibling", "answer_title": "Measuring hull / shell-plate thickness in drydock", "cross_family": false }, { "answer_id": "RES-PROP-P01-002", "score": 0.6491995453834534, "sibling_score": 0.6491995453834534, "answer_score": null, "sibling_qid": "MUM-2026-01-0696-Q001S4", "sibling_text": "different types of ship resistance", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Resistance types and methods of reducing them", "cross_family": false } ] }, { "qid": "KOL-2025-10-1110-Q001", "text": "ship hull dmage reporting detail system as per sms, with in what time give detailed report", "family": "ISM Code", "subtopic": "Root Cause / Incident Reporting", "tid": "KOL-2025-10-1110", "tray": "review", "candidates": [ { "answer_id": "ISM-AUD-P03-003", "score": 0.7049843668937683, "sibling_score": 0.7049843668937683, "answer_score": null, "sibling_qid": "KOC-2025-10-2075-Q006", "sibling_text": "hull damage has taken place how will you report to your company following sms one more question which i never heard", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Non-conformity, major non-conformity and incident reporting under SMS", "cross_family": false }, { "answer_id": "RCA-INC-001", "score": 0.5812788009643555, "sibling_score": 0.5812788009643555, "answer_score": 0.47005210518836976, "sibling_qid": "KOL-2025-09-1058-Q003", "sibling_text": "under ism proper reporting procedure for accident or incident on board", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "RCA-INC-01 — Reporting procedure for an accident or incident on board under ISM / SMS", "cross_family": false }, { "answer_id": "HULL-DD-006", "score": 0.5778331160545349, "sibling_score": 0.5778331160545349, "answer_score": 0.5549092531204224, "sibling_qid": "KOL-2019-09-0323-Q002", "sibling_text": "your ship had a collision how will u report the same to office wants to hear abt the designation of shell plating", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "7. Hull damage / collision / dent reporting and shell-plating designation", "cross_family": true } ] }, { "qid": "KOL-2025-10-1110-Q005", "text": "ism code objective", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOL-2025-10-1110", "tray": "review", "candidates": [ { "answer_id": "ISM-ELEM-001", "score": 0.7891830801963806, "sibling_score": 0.7891830801963806, "answer_score": 0.4508429706096649, "sibling_qid": "MUM-2025-11-0579-Q001", "sibling_text": "ism code objective", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "ISM-ELEM-002", "score": 0.5914806127548218, "sibling_score": 0.5914806127548218, "answer_score": null, "sibling_qid": "MUM-2026-08-3836-Q007", "sibling_text": "what is ism code", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the ISM Code?", "cross_family": false }, { "answer_id": "ISM-ELEM-003", "score": 0.44993335008621216, "sibling_score": null, "answer_score": 0.44993335008621216, "sibling_qid": "", "sibling_text": "elements chapters structure of the ism code part a implementation the 12 elements 1 general 1 1 definitions 1 2 objectives 1 3 application 1 4 functional requirements for an sms", "sibling_family": "", "via": "answer_title", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": false } ] }, { "qid": "KOL-2025-10-1110-Q007", "text": "weekly entry code orb Int", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "KOL-2025-10-1110", "tray": "review", "candidates": [ { "answer_id": "ORB-IOPP-OWS-004", "score": 0.7795009016990662, "sibling_score": 0.7795009016990662, "answer_score": 0.347434838116169, "sibling_qid": "KOC-2026-04-0901-Q013", "sibling_text": "orb weekly entry code and number", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Weekly ORB entries — the mandatory sludge retention record, the bunker entry, and what is voluntary", "cross_family": false }, { "answer_id": "OWS-ORB-006", "score": 0.5788111090660095, "sibling_score": 0.5788111090660095, "answer_score": null, "sibling_qid": "KOL-2026-03-1212-Q011", "sibling_text": "orb codes and entries", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "6. Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-002", "score": 0.4807741641998291, "sibling_score": 0.4807741641998291, "answer_score": 0.24582649171352386, "sibling_qid": "CHE-2024-10-0509-Q002", "sibling_text": "orb entries all in detail", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "The Oil Record Book Part I — purpose, the letter codes, and how entries are made", "cross_family": false } ] }, { "qid": "KOL-2025-10-1110-Q010", "text": "weekly retention code.", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "KOL-2025-10-1110", "tray": "new", "candidates": [ { "answer_id": "ORB-IOPP-OWS-004", "score": 0.6236117482185364, "sibling_score": 0.6236117482185364, "answer_score": 0.3785162836313248, "sibling_qid": "KOC-2025-01-2059-Q014", "sibling_text": "orb entry of bunker and weekly retention in detail", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Weekly ORB entries — the mandatory sludge retention record, the bunker entry, and what is voluntary", "cross_family": false }, { "answer_id": "EMG-DG-P04-003", "score": 0.5010921955108643, "sibling_score": 0.5010921955108643, "answer_score": null, "sibling_qid": "MUM-2017-01-1322-Q004", "sibling_text": "weekly checks on emergency dg", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Checks, rounds and scheduled maintenance", "cross_family": true }, { "answer_id": "CO2-SYS-002", "score": 0.49270445108413696, "sibling_score": 0.49270445108413696, "answer_score": null, "sibling_qid": "KOC-2026-02-0827-Q014", "sibling_text": "co2 weekly maintenance", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 maintenance, inspection, testing and survey routines", "cross_family": true } ] }, { "qid": "KOL-2025-10-1110-Q012", "text": "how we know what all tanks to be entered in orb,", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "KOL-2025-10-1110", "tray": "new", "candidates": [ { "answer_id": "IOPP-191-004", "score": 0.5149075388908386, "sibling_score": 0.5149075388908386, "answer_score": null, "sibling_qid": "KOC-2025-11-0703-Q006", "sibling_text": "iopp tanks list where it is mentioned", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "IOPP Supplement tank information: where sludge, bilge and oil-residue tanks are recorded", "cross_family": false }, { "answer_id": "OWS-ORB-006", "score": 0.4559781551361084, "sibling_score": 0.4559781551361084, "answer_score": null, "sibling_qid": "MUM-2025-09-0447-Q007", "sibling_text": "orb entries", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "6. Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": false }, { "answer_id": "OILRES-DISCH-TOPIC467-FINAL-001", "score": 0.45587319135665894, "sibling_score": 0.45587319135665894, "answer_score": null, "sibling_qid": "MUM-2026-06-3498-Q005", "sibling_text": "as second engineer how will you about which tanks are store oil and sludge", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Managing sludge and oily residues onboard — tanks, storage, hazards and the regulatory basis", "cross_family": false } ] }, { "qid": "KOL-2025-10-1111-Q003", "text": "verification of compliance", "family": "Other Conventions", "subtopic": "III Code", "tid": "KOL-2025-10-1111", "tray": "new", "candidates": [ { "answer_id": "CERT-LIST-P02-002", "score": 0.605286717414856, "sibling_score": 0.605286717414856, "answer_score": null, "sibling_qid": "KOL-2019-07-3260-Q005", "sibling_text": "certificate of compliance", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Document of Compliance, Certificate and Statement of Compliance", "cross_family": true }, { "answer_id": "MRV-DCS-001", "score": 0.5880112648010254, "sibling_score": 0.5880112648010254, "answer_score": null, "sibling_qid": "MUM-2022-10-0054-Q005", "sibling_text": "how monitoring and verification done", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is the difference between EU MRV and IMO DCS?", "cross_family": true }, { "answer_id": "AIRP-188-008", "score": 0.5800462961196899, "sibling_score": 0.5800462961196899, "answer_score": 0.43822693824768066, "sibling_qid": "MUM-2025-09-0481-Q007", "sibling_text": "nox verification methods", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "How do you demonstrate NOx and SOx compliance to a surveyor?", "cross_family": true } ] }, { "qid": "KOL-2025-10-1111-Q012", "text": "rudder pressure test ?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2025-10-1111", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.8010337352752686, "sibling_score": 0.8010337352752686, "answer_score": null, "sibling_qid": "MUM-2026-02-1272-Q011", "sibling_text": "pressure test of rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "DUS-P5-05", "score": 0.4222450718283653, "sibling_score": null, "answer_score": 0.4222450718283653, "sibling_qid": "", "sibling_text": "rudder checks and rudder blade tightness leak test in drydock visual checks coating condition cavitation erosion on the blade leading edge propeller side face sacrificial anodes against the approved cathodic protection plan grounding continuity against the approved acceptance criterion plate and weld cracks pintle clearance measured with feeler the numerical acceptance limit is class specific and ", "sibling_family": "", "via": "answer_title", "answer_title": "Rudder checks and rudder-blade tightness/leak test in drydock", "cross_family": false }, { "answer_id": "RUD-DROP-002", "score": 0.4214336633682251, "sibling_score": null, "answer_score": 0.4214336633682251, "sibling_qid": "", "sibling_text": "rudder clearances which where and how taken pintle bush clearance at each pintle top bottom f a and p s on long feeler gauges or pintle od vs bush id by caliper top mid bottom the maximum is the clearance renew the bush at the maker class limit carrier bearing wear down the rudder drop poker trammel gauge hull datum to stock mark against the recorded newbuilding reading", "sibling_family": "", "via": "answer_title", "answer_title": "Rudder clearances: which, where and how taken", "cross_family": false } ] }, { "qid": "KOL-2025-10-2017-Q002", "text": "Nip and crush of bearing", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Bearing Clearance", "tid": "KOL-2025-10-2017", "tray": "review", "candidates": [ { "answer_id": "BRG-NOM-004", "score": 0.6994603276252747, "sibling_score": 0.6994603276252747, "answer_score": 0.5118634402751923, "sibling_qid": "MUM-2025-10-1210-Q004", "sibling_text": "nip of bearing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bearing Nip/Crush, Clearance, and How the Shell is Held", "cross_family": false }, { "answer_id": "AE-CRP-007", "score": 0.6176507472991943, "sibling_score": 0.6176507472991943, "answer_score": 0.4482405662536621, "sibling_qid": "MUM-2025-12-1227-Q013", "sibling_text": "aux engine bearing nip and crush why bearing dont rotate many cross on this", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE big-end / bottom-end bearing — inspection, bedding, nip and crush", "cross_family": true }, { "answer_id": "WMAT-170-007", "score": 0.5728207230567932, "sibling_score": 0.5728207230567932, "answer_score": null, "sibling_qid": "KOL-2022-10-1714-Q005", "sibling_text": "defects in bearing corrosion crack bulging wipe out", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Tin-oxide corrosion of white metal and its prevention", "cross_family": false } ] }, { "qid": "KOL-2025-10-2017-Q008", "text": "AE crankpin ovality, action", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Crankshaft / Crankpin / Bearings", "tid": "KOL-2025-10-2017", "tray": "review", "candidates": [ { "answer_id": "AE-CSB-346-004", "score": 0.7582319378852844, "sibling_score": 0.7582319378852844, "answer_score": 0.505446496605873, "sibling_qid": "MUM-2022-07-1014-Q005", "sibling_text": "ae crankpin ovality and action", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Crankpin ovality / damage — check and repair action", "cross_family": false }, { "answer_id": "CRPIN-CHK-P01-004", "score": 0.6716092824935913, "sibling_score": 0.6716092824935913, "answer_score": null, "sibling_qid": "KOL-2022-04-3530-Q003", "sibling_text": "crank pin ovality action how to do grinding", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Repairing an oval or worn crankpin — grinding, undersize bearings, renewal", "cross_family": true }, { "answer_id": "CRPIN-CHK-P01-001", "score": 0.6709263324737549, "sibling_score": 0.6709263324737549, "answer_score": 0.5076802194118499, "sibling_qid": "KOL-2025-12-1828-Q009", "sibling_text": "what to do if crankpin is oval", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankpin ovality — how it is measured and at what positions", "cross_family": true } ] }, { "qid": "KOL-2025-10-2019-Q003", "text": "Function of leaf spring in t/c.", "family": "Turbocharger", "subtopic": "TC Construction", "tid": "KOL-2025-10-2019", "tray": "new", "candidates": [ { "answer_id": "STEER-055-A-003", "score": 0.42769506573677063, "sibling_score": 0.42769506573677063, "answer_score": null, "sibling_qid": "KOL-2019-07-3253-Q002", "sibling_text": "buffer spring purpose", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Hunting gear, floating lever and buffer spring", "cross_family": true }, { "answer_id": "TURBO-CS-P02-015", "score": 0.4229477047920227, "sibling_score": 0.4229477047920227, "answer_score": null, "sibling_qid": "KOL-2018-09-3187-Q004", "sibling_text": "tc vibration cause action", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharger vibration — cause and action", "cross_family": false }, { "answer_id": "TURBO-CS-P03-004", "score": 0.4207535982131958, "sibling_score": 0.4207535982131958, "answer_score": null, "sibling_qid": "KOL-2021-08-1614-Q005", "sibling_text": "t c blades arrangements", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Rotor blade fixing: fir-tree / bulb root, damping (lacing) wire", "cross_family": false } ] }, { "qid": "KOL-2025-10-2020-Q001", "text": "Types of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2025-10-2020", "tray": "review", "candidates": [ { "answer_id": "LLST-AB-001", "score": 0.816759467124939, "sibling_score": 0.816759467124939, "answer_score": 0.5332269072532654, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.7934107780456543, "sibling_score": 0.7934107780456543, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.7863463163375854, "sibling_score": 0.7863463163375854, "answer_score": 0.5275216400623322, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "KOL-2025-10-2021-Q002", "text": "Type of engine & type of vessel you have sailed,", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "KOL-2025-10-2021", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8387782573699951, "sibling_score": 0.8387782573699951, "answer_score": null, "sibling_qid": "CHE-2026-03-0255-Q001", "sibling_text": "type of vessel and engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.7856807708740234, "sibling_score": 0.7856807708740234, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q001", "sibling_text": "type of ship sailed and engines details", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "SPR-STERN-006", "score": 0.49222994446754453, "sibling_score": null, "answer_score": 0.49222994446754453, "sibling_qid": "", "sibling_text": "propeller types special propulsors", "sibling_family": "", "via": "answer_title", "answer_title": "Propeller types & special propulsors", "cross_family": false } ] }, { "qid": "KOL-2025-10-2021-Q006", "text": "Boiler safety valve setting.", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2025-10-2021", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-001", "score": 0.8649305105209351, "sibling_score": 0.8649305105209351, "answer_score": null, "sibling_qid": "CHE-2026-04-0500-Q005", "sibling_text": "boiler safety valve setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.8231759667396545, "sibling_score": 0.8231759667396545, "answer_score": null, "sibling_qid": "MUM-2026-03-2935-Q013", "sibling_text": "boiler safety valve setting in presence of surveyor after survey", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.8126764893531799, "sibling_score": 0.8126764893531799, "answer_score": null, "sibling_qid": "KOC-2026-05-0034-Q010", "sibling_text": "boiler safety valve types and how safety valve is set complete procedures", "sibling_family": "Boilers - 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Clearance.", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Crankshaft / Crankpin / Bearings", "tid": "KOL-2025-10-2021", "tray": "review", "candidates": [ { "answer_id": "CRPIN-CHK-P01-001", "score": 0.6985740661621094, "sibling_score": 0.6985740661621094, "answer_score": 0.5577872693538666, "sibling_qid": "KOL-2026-01-3902-Q002", "sibling_text": "con rod be crank pin ovality how to measure", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankpin ovality — how it is measured and at what positions", "cross_family": true }, { "answer_id": "AE-CSB-346-004", "score": 0.676019012928009, "sibling_score": 0.676019012928009, "answer_score": 0.5443674027919769, "sibling_qid": "MUM-2022-07-1014-Q005", "sibling_text": "ae crankpin ovality and action", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Crankpin ovality / damage — check and repair action", "cross_family": false }, { "answer_id": "AE-CRP-004", "score": 0.6592432856559753, "sibling_score": 0.6592432856559753, "answer_score": null, "sibling_qid": "KOC-2021-05-1760-Q004", "sibling_text": "connecting rod checks in auxiliary engine ans normal procedure he needs that no need to check anything on conrod bolts change it after running hours specified in manual and reason for conrod ovality is excessive lapping of serrations", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE connecting-rod inspection — ovality, trueness, serrations, action if out of limit", "cross_family": false } ] }, { "qid": "KOL-2025-10-2890-Q003", "text": "ICCP ? Why Stopped in Fresh water & Port, Reasons ?", "family": "Electrical - ICCP & Cathodic Protection", "subtopic": "ICCP", "tid": "KOL-2025-10-2890", "tray": "review", "candidates": [ { "answer_id": "ICCP-P02-003", "score": 0.7123470902442932, "sibling_score": 0.7123470902442932, "answer_score": 0.4164488881826401, "sibling_qid": "KOC-2026-01-1686-Q010", "sibling_text": "why iccp stopped at port", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP operation — port / berth practice, seawater temperature, starting & adjustment", "cross_family": false }, { "answer_id": "ICCP-P02-002", "score": 0.5496004819869995, "sibling_score": 0.5496004819869995, "answer_score": null, "sibling_qid": "MUM-2025-09-2401-Q002", "sibling_text": "checks on iccp in drydock", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP drydock checks — anodes, shields, reference cells, bonding, hull", "cross_family": false }, { "answer_id": "ICCP-MGPS-005", "score": 0.542337954044342, "sibling_score": 0.542337954044342, "answer_score": 0.42629877030849456, "sibling_qid": "KOL-2025-07-2812-Q004", "sibling_text": "difference between iccp and mgps xx nd while visiting to port side why iccp need to switch off", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "Differentiate ICCP and MGPS — and why ICCP is switched off in port / fresh water", "cross_family": false } ] }, { "qid": "KOL-2025-10-2891-Q006", "text": "Field flashing ?", "family": "Electrical - Generator & Alternator", "subtopic": "Residual Magnetism / Flashing", "tid": "KOL-2025-10-2891", "tray": "review", "candidates": [ { "answer_id": "RES-MAG-004", "score": 0.7110051512718201, "sibling_score": 0.7110051512718201, "answer_score": 0.3371568456292152, "sibling_qid": "MUM-2026-06-3421-Q004", "sibling_text": "flashing up", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Field flashing — the procedure, where the battery connects, which terminal, and the precautions", "cross_family": false }, { "answer_id": "ELEC-ELX-016", "score": 0.4058214157819748, "sibling_score": null, "answer_score": 0.4058214157819748, "sibling_qid": "", "sibling_text": "stroboscopic effect", "sibling_family": "", "via": "answer_title", "answer_title": "Stroboscopic effect", "cross_family": false }, { "answer_id": "ELEC-ELX-010", "score": 0.3267835289239883, "sibling_score": null, "answer_score": 0.3267835289239883, "sibling_qid": "", "sibling_text": "electrical spark and static charge", "sibling_family": "", "via": "answer_title", "answer_title": "Electrical spark and static charge", "cross_family": false } ] }, { "qid": "KOL-2025-10-2894-Q002", "text": "Exi and Explosion proof ?", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOL-2025-10-2894", "tray": "review", "candidates": [ { "answer_id": "EXD-EXI-A-002", "score": 0.6837054491043091, "sibling_score": 0.6837054491043091, "answer_score": 0.5077015995979309, "sibling_qid": "KOC-2025-01-0521-Q009", "sibling_text": "explosion proof notations exd exe", "sibling_family": "", "via": "sibling", "answer_title": "Ex d (flameproof / explosion-proof) — construction, shipboard applications and maintenance", "cross_family": false }, { "answer_id": "EXD-EXI-A-001", "score": 0.6199774742126465, "sibling_score": 0.6199774742126465, "answer_score": 0.5194952547550201, "sibling_qid": "KOC-2025-10-1580-Q005", "sibling_text": "flameproof explosion proof", "sibling_family": "", "via": "sibling", "answer_title": "Ex i (intrinsically safe) vs Ex d (flameproof / explosion-proof) — the difference", "cross_family": false }, { "answer_id": "TNK-SAFE-BF26-003", "score": 0.5762799978256226, "sibling_score": 0.5762799978256226, "answer_score": null, "sibling_qid": "MUM-2026-03-2041-Q005S7", "sibling_text": "explosion proof safety for hazardous area on product tanker ex ia what type of fault they will tolerate", "sibling_family": "", "via": "sibling", "answer_title": "What safeties, including electrical safeties and Ex ratings, are provided on the deck of a tanker?", "cross_family": false } ] }, { "qid": "KOL-2025-10-2897-Q008", "text": "Contactor Maintenance ?", "family": "Electrical - Protection & Relays", "subtopic": "Protection / Relays", "tid": "KOL-2025-10-2897", "tray": "new", "candidates": [ { "answer_id": "CBR-ARC-G-002", "score": 0.5975686311721802, "sibling_score": 0.5975686311721802, "answer_score": null, "sibling_qid": "CHE-2026-05-0630-Q007", "sibling_text": "acb maintenance working how many contacts are there", "sibling_family": "Electrical - Switchgear & Protection", "via": "sibling", "answer_title": "ACB construction, contacts, arc chutes, auxiliaries and VCB parts", "cross_family": true }, { "answer_id": "CB033-C-001", "score": 0.5943019986152649, "sibling_score": 0.5943019986152649, "answer_score": null, "sibling_qid": "CHE-2026-05-0633-Q011", "sibling_text": "maintenance on circuit breaker", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "How do you carry out maintenance and testing on an ACB / main circuit breaker?", "cross_family": false }, { "answer_id": "PRL-594-001", "score": 0.5904427170753479, "sibling_score": 0.5904427170753479, "answer_score": null, "sibling_qid": "CHE-2026-05-0611-Q006", "sibling_text": "contactor power supply", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "What is the difference between a relay and a contactor?", "cross_family": false } ] }, { "qid": "KOL-2025-10-3861-Q001", "text": "Vikrant rai sir & debajyoti chaki sir Type of main engine worked on. Tell me what all overhauling you have been involved. And too much cross question. All answer satisfied.", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOL-2025-10-3861", "tray": "new", "candidates": [ { "answer_id": "EXV-P02-001", "score": 0.5782027840614319, "sibling_score": 0.5782027840614319, "answer_score": null, "sibling_qid": "KOL-2019-11-3297-Q001", "sibling_text": "what o h u have done on main engine i told exhaust valve full overhauling of exhaust valve and many cross questions", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve overhaul & dismantling — procedure and precautions", "cross_family": true }, { "answer_id": "CYL-LINER-P02-004", "score": 0.5765483379364014, "sibling_score": 0.5765483379364014, "answer_score": null, "sibling_qid": "KOL-2022-09-1710-Q001", "sibling_text": "type of main engine how liner becomes oval and cross by rao sir", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L4 · T044-PART_02-G004High", "cross_family": true }, { "answer_id": "MAIN-BRG-B-001", "score": 0.5623273253440857, "sibling_score": 0.5623273253440857, "answer_score": null, "sibling_qid": "KOC-2024-09-1865-Q002", "sibling_text": "overhaul of main bearing of main engine", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you open up / remove / overhaul a main-engine main bearing?", "cross_family": true } ] }, { "qid": "KOL-2025-10-3867-Q001", "text": "Main engine cylinder liner ovality how to check, how many positions", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "KOL-2025-10-3867", "tray": "review", "candidates": [ { "answer_id": "CYL-LINER-P02-004", "score": 0.6913971304893494, "sibling_score": 0.6913971304893494, "answer_score": null, "sibling_qid": "MUM-2023-09-1059-Q007", "sibling_text": "you found liner ovalility is more but is within limits what are your actions and will you change or run the engine piston centering and you found the piston is not cenetered how to center it back", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L4 · T044-PART_02-G004High", "cross_family": false }, { "answer_id": "CRPIN-CHK-P01-001", "score": 0.6690003275871277, "sibling_score": 0.6690003275871277, "answer_score": 0.509847217798233, "sibling_qid": "KOL-2020-06-3340-Q001", "sibling_text": "crank pin ovality how to measure how many positions what if", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankpin ovality — how it is measured and at what positions", "cross_family": true }, { "answer_id": "CYL-LINER-P01-002", "score": 0.6530354619026184, "sibling_score": 0.6530354619026184, "answer_score": null, "sibling_qid": "CHE-2026-03-0492-Q001", "sibling_text": "liner calibration how it is done how to calculate wear rate ovality no of position to be taken and their positions", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Getting true readings: tool, position and temperature", "cross_family": false } ] }, { "qid": "KOL-2025-10-3867-Q004", "text": "How to do welding on rudder", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2025-10-3867", "tray": "review", "candidates": [ { "answer_id": "WBS-C-006", "score": 0.7030251026153564, "sibling_score": 0.7030251026153564, "answer_score": null, "sibling_qid": "KOL-2025-11-4070-Q006", "sibling_text": "rudder welding", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Propeller and rudder repair — grading the damage and the Class-approved route", "cross_family": true }, { "answer_id": "RUD-DROP-001", "score": 0.6963176727294922, "sibling_score": 0.6963176727294922, "answer_score": null, "sibling_qid": "MUM-2026-09-3982-Q002", "sibling_text": "rudder inspection welding on rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "PW-327-003", "score": 0.5770629644393921, "sibling_score": 0.5770629644393921, "answer_score": null, "sibling_qid": "KOL-2021-08-1623-Q007", "sibling_text": "weld then in dd", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "3. Shell / deck plate repair and renewal in dry dock (class context)", "cross_family": true } ] }, { "qid": "KOL-2025-10-3868-Q006", "text": "When will you change you change compressor valve plate? What is the allowable reduction of thickness of valve plate!", "family": "Air Compressor", "subtopic": "Reciprocating Compressor", "tid": "KOL-2025-10-3868", "tray": "new", "candidates": [ { "answer_id": "REEF-COMP-008", "score": 0.6312081217765808, "sibling_score": 0.6312081217765808, "answer_score": null, "sibling_qid": "KOL-2026-05-4096-Q003", "sibling_text": "compressor valves to be replaced how to check and renew", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Valves, clearances, oil carry-over, refrigerant-in-oil, frosting, tandem valves, cooling — fault checks", "cross_family": false }, { "answer_id": "MAC-598-001", "score": 0.6126424670219421, "sibling_score": 0.6126424670219421, "answer_score": null, "sibling_qid": "KOC-2023-08-0983-Q006", "sibling_text": "compressor valve details", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "The main air compressor valve — arrangement, parts, and why the construction is so complex", "cross_family": false }, { "answer_id": "AIRCOMP-PERF-003", "score": 0.6059439778327942, "sibling_score": 0.6059439778327942, "answer_score": null, "sibling_qid": "KOL-2021-01-3373-Q004", "sibling_text": "compressor capacity reduced drastically reason nd action", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Why does the main air compressor take more time to fill the air bottle, or why is its capacity reduced?", "cross_family": false } ] }, { "qid": "KOL-2025-10-3869-Q002", "text": "Which type of ship and engine sailed", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "KOL-2025-10-3869", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.7685099840164185, "sibling_score": 0.7685099840164185, "answer_score": null, "sibling_qid": "MUM-2026-06-3490-Q006", "sibling_text": "engine sailed type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.7520487904548645, "sibling_score": 0.7520487904548645, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q001", "sibling_text": "type of ship sailed and engines details", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.6737488508224487, "sibling_score": 0.6737488508224487, "answer_score": null, "sibling_qid": "KOL-2025-12-2031-Q002", "sibling_text": "type of ship and engine sailed engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "KOL-2025-10-3869-Q003", "text": "How to align piston inside liner", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "KOL-2025-10-3869", "tray": "review", "candidates": [ { "answer_id": "PIST-CSI-B-002", "score": 0.7835266590118408, "sibling_score": 0.7835266590118408, "answer_score": 0.5741822242736816, "sibling_qid": "MUM-2026-09-3956-Q008", "sibling_text": "alignment of piston in liner", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Checking and correcting piston alignment / centering in the liner", "cross_family": false }, { "answer_id": "PST-CSI-BF-010", "score": 0.7240081429481506, "sibling_score": 0.7240081429481506, "answer_score": 0.5389760494232178, "sibling_qid": "KOL-2026-01-3903-Q005", "sibling_text": "piston liner alignment procedure", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Checking piston alignment / centring in the liner, and correcting eccentricity", "cross_family": false }, { "answer_id": "CYL-LINER-P02-004", "score": 0.674786388874054, "sibling_score": 0.674786388874054, "answer_score": 0.4476509392261505, "sibling_qid": "KOL-2020-03-1531-Q003", "sibling_text": "liner ovality piston alignment", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L4 · T044-PART_02-G004High", "cross_family": false } ] }, { "qid": "KOL-2025-10-3869-Q007", "text": "who take load of rudder, where rudder carrier bearing located", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2025-10-3869", "tray": "review", "candidates": [ { "answer_id": "TRS-002", "score": 0.7038286328315735, "sibling_score": 0.7038286328315735, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.6952144503593445, "sibling_score": 0.6952144503593445, "answer_score": 0.4226226449012756, "sibling_qid": "CHE-2026-02-0110-Q006", "sibling_text": "how rudder weight is carried key ans i said carrier bearing how it carrying explain", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "PRE-TEN-001", "score": 0.6583952307701111, "sibling_score": 0.6583952307701111, "answer_score": null, "sibling_qid": "MUM-2026-06-3504-Q007", "sibling_text": "rudder carrier bearing removal procedure", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Pre-stressing and pre-tensioning in main-engine bolting", "cross_family": false } ] }, { "qid": "KOL-2025-10-3870-Q004", "text": "Main engine bottom end bearing damage beyond repair, how to proceed without spares", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Bottom End Bearing", "tid": "KOL-2025-10-3870", "tray": "review", "candidates": [ { "answer_id": "BEB-C-002", "score": 0.8108307719230652, "sibling_score": 0.8108307719230652, "answer_score": 0.5642301023006439, "sibling_qid": "KOL-2018-03-3129-Q001", "sibling_text": "if one of the bottom end bearing of main engine is damaged can t be used again don t have spare what will be your course of action", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bottom end bearing damaged, no spare — action to reach port without damaging the pin", "cross_family": false }, { "answer_id": "BEB-A-001", "score": 0.7130854725837708, "sibling_score": 0.7130854725837708, "answer_score": 0.510709822177887, "sibling_qid": "KOL-2017-07-3074-Q002", "sibling_text": "bottom end bearing getting over heated on dismantling dark bulged patch action no spare on board", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Removing, overhauling, inspecting and refitting the bottom end bearing", "cross_family": false }, { "answer_id": "CRKPIN-P02-003", "score": 0.5498429596424103, "sibling_score": null, "answer_score": 0.5498429596424103, "sibling_qid": "", "sibling_text": "crankpin or bearing beyond repair no spare casualty action confirm it really is beyond repair before deciding pin cracked oval scored tapered beyond the maker s reclaim limit or bearing destroyed with no serviceable correctly sized spare check against the manual s limits and crack detect first make safe stop isolate and lock starting air open the unit s indicator cock turning gear engaged cooled c", "sibling_family": "", "via": "answer_title", "answer_title": "Crankpin or bearing beyond repair / no spare — casualty action", "cross_family": false } ] }, { "qid": "KOL-2025-10-4064-Q001", "text": "Rolling period aur usse xxx", "family": "SOLAS", "subtopic": "Static / Dynamic Stability", "tid": "KOL-2025-10-4064", "tray": "review", "candidates": [ { "answer_id": "BK-002", "score": 0.6521812677383423, "sibling_score": 0.6521812677383423, "answer_score": 0.31687867641448975, "sibling_qid": "KOL-2026-05-4185-Q004", "sibling_text": "period of roll", "sibling_family": "", "via": "sibling", "answer_title": "How does a bilge keel reduce rolling, and how does it relate to roll period and radius of gyration?", "cross_family": false }, { "answer_id": "PAR-ROLL-001", "score": 0.5568655729293823, "sibling_score": 0.5568655729293823, "answer_score": 0.32391701340675355, "sibling_qid": "KOL-2021-12-0578-Q003", "sibling_text": "parametric rolling relation between rolling and pitching periods", "sibling_family": "", "via": "sibling", "answer_title": "01. What is parametric rolling?", "cross_family": false }, { "answer_id": "PAR-ROLL-004", "score": 0.5339505672454834, "sibling_score": 0.5339505672454834, "answer_score": 0.3493796497583389, "sibling_qid": "KOL-2022-09-0679-Q005", "sibling_text": "roll period formulae parametric and synchronous rolling", "sibling_family": "", "via": "sibling", "answer_title": "04. Parametric vs synchronous rolling (and the ‘sequential / prismatic’ variants)", "cross_family": false } ] }, { "qid": "KOL-2025-10-4064-Q010", "text": "Engine bedplate construction", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Bedplate / A-Frame", "tid": "KOL-2025-10-4064", "tray": "review", "candidates": [ { "answer_id": "TR-TB-PA-001", "score": 0.6527408957481384, "sibling_score": 0.6527408957481384, "answer_score": null, "sibling_qid": "KOL-2024-04-3686-Q003", "sibling_text": "how firing forces transmitted tie rods arrangement how fitted how crankshaft rests on bedplate how bed plate girders fitted", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Function of tie rods and the firing-load path", "cross_family": false }, { "answer_id": "ETP-344-P01-008", "score": 0.6115007996559143, "sibling_score": 0.6115007996559143, "answer_score": null, "sibling_qid": "MUM-2026-06-3525-Q003", "sibling_text": "what are the check and testing done on bed plate while running of an engine", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Verifying power — shop test, test bed, sea trial", "cross_family": false }, { "answer_id": "CHK-330-004", "score": 0.6105762720108032, "sibling_score": 0.6105762720108032, "answer_score": 0.5644902110099792, "sibling_qid": "MUM-2026-03-1306-Q014S4", "sibling_text": "bed plate parts choking arrangement alignment of shaft intermediate shaft take out procedure", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Chocking arrangement on the main engine bedplate seating", "cross_family": false } ] }, { "qid": "KOL-2025-10-4065-Q005", "text": "Life boat release mechanism , How many means of release , How to test hook ? How to test hook without releasing the boat, How much pressure to release ,How to calculate releasing pressure", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Davit / Release Gear", "tid": "KOL-2025-10-4065", "tray": "review", "candidates": [ { "answer_id": "DRG-583-A-005", "score": 0.705995500087738, "sibling_score": 0.705995500087738, "answer_score": null, "sibling_qid": "KOL-2019-08-0311-Q003", "sibling_text": "lifeboat davit hook testing", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Annual examination, operational test and 5-yearly overhaul of the release gear", "cross_family": false }, { "answer_id": "DRG-583-A-001", "score": 0.6984384655952454, "sibling_score": 0.6984384655952454, "answer_score": null, "sibling_qid": "KOL-2021-09-0550-Q002", "sibling_text": "different mechanisms of lifeboat release", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "On-load and off-load release: what each one is, and why both are fitted", "cross_family": false }, { "answer_id": "DRG-583-A-002", "score": 0.6980701684951782, "sibling_score": 0.6980701684951782, "answer_score": null, "sibling_qid": "KOC-2024-12-0492-Q008", "sibling_text": "life boat onload and offload release what is the name of the lever why onload and offload release is given", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Why on-load release is essential, and why off-load will not do in a seaway", "cross_family": false } ] }, { "qid": "KOL-2025-10-4065-Q008", "text": "What if shore supply is 60 hz What will happen", "family": "Electrical - Distribution & MSB", "subtopic": "High Voltage System / Earthing / Shore Supply", "tid": "KOL-2025-10-4065", "tray": "review", "candidates": [ { "answer_id": "SHORE-CONN-P04-001", "score": 0.6664307117462158, "sibling_score": 0.6664307117462158, "answer_score": 0.5034538328647613, "sibling_qid": "KOC-2025-02-1500-Q008", "sibling_text": "your shore is supplying 50 hz and your ship has 60hz you can t reduce voltage how will you run your machinery", "sibling_family": "", "via": "sibling", "answer_title": "Accepting shore supply at a different frequency or voltage (incl. dry dock)", "cross_family": false }, { "answer_id": "EPC-P01-05", "score": 0.40882021486759185, "sibling_score": null, "answer_score": 0.40882021486759185, "sibling_qid": "", "sibling_text": "three phase bridge rectifier construction working and why it is used each diode conducts 120 per cycle the conducting pair steps every 60 natural commutation round the bridge ripple frequency 6f 360 hz on a 60 hz ship shallow and easy to filter", "sibling_family": "", "via": "answer_title", "answer_title": "Three-phase bridge rectifier — construction, working and why it is used", "cross_family": false }, { "answer_id": "SHORE-CONN-P02-002", "score": 0.3910231605172157, "sibling_score": null, "answer_score": 0.3910231605172157, "sibling_qid": "", "sibling_text": "the shore connection single line diagram and why the transformer the single line shore supply shore box 3 terminals earth isolator breaker transformer if voltage differs cable commonlyemergency switchboard bus tie main switchboard or directly to the main switchboard on ships so arranged instrumentstapped on the incoming side voltmeter frequency meter phase sequence indicator plus supply available ", "sibling_family": "", "via": "answer_title", "answer_title": "The shore connection single-line diagram — and why the transformer", "cross_family": false } ] }, { "qid": "KOL-2025-10-4065-Q011", "text": "As second engineer What will you check before taking the shore supply - this i told parameters like voltage frequency is same , shore connection junction box is ok,proper grounding - said NO!!! He asked what's the first thing you will check as 2nd engineer ,", "family": "Electrical - Distribution & MSB", "subtopic": "High Voltage System / Earthing / Shore Supply", "tid": "KOL-2025-10-4065", "tray": "review", "candidates": [ { "answer_id": "SHORE-CONN-P03-001", "score": 0.7896854877471924, "sibling_score": 0.7896854877471924, "answer_score": null, "sibling_qid": "MUM-2025-09-1658-Q001", "sibling_text": "checks before taking shore power", "sibling_family": "", "via": "sibling", "answer_title": "Taking electrical shore power in dry dock — preparation, checks and procedure", "cross_family": false }, { "answer_id": "SHORE-CONN-P02-001", "score": 0.7859101295471191, "sibling_score": 0.7859101295471191, "answer_score": null, "sibling_qid": "KOL-2021-11-2507-Q003", "sibling_text": "shore power supply condition what wil you check shore power terminal box", "sibling_family": "", "via": "sibling", "answer_title": "The shore connection box — what is in it, where it is, and the interlocks", "cross_family": false }, { "answer_id": "SHORE-CONN-P04-001", "score": 0.7819898128509521, "sibling_score": 0.7819898128509521, "answer_score": null, "sibling_qid": "KOL-2022-10-2613-Q002", "sibling_text": "parameters to be check before shore supply connection i told him about voltage frequency and vfd as remedy location of connection box he told me u are missing one more parameters i told phase then he was happy told me why u were waiting for this", "sibling_family": "", "via": "sibling", "answer_title": "Accepting shore supply at a different frequency or voltage (incl. dry dock)", "cross_family": false } ] }, { "qid": "KOL-2025-10-4067-Q002", "text": "10.2025 Mep Fn6 What factors are considered for filtration of turbine oil Air in refer , reason and how will you take it out Vessel laid for one year and during commencing you join as 2nd eng what all checks you will carry out Rudder plate renewal procedure and checks New gearbox installed per and post checks", "family": "Steam & Turbine Plant", "subtopic": "Turbine Lubricating Oil / Filtration", "tid": "KOL-2025-10-4067", "tray": "new", "candidates": [ { "answer_id": "LOF-359-007", "score": 0.6134703159332275, "sibling_score": 0.6134703159332275, "answer_score": 0.5288377881050109, "sibling_qid": "KOL-2026-01-4079-Q007", "sibling_text": "filtration of turbine oil", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Turbine Oil Filtration — Arrangements and Checks", "cross_family": true }, { "answer_id": "PIST-CSI-C-002", "score": 0.5995441675186157, "sibling_score": 0.5995441675186157, "answer_score": null, "sibling_qid": "KOL-2018-04-3133-Q007", "sibling_text": "pr testing procedure of piston what checks you will do on high pr fuel oil pipe before fitting just before leaving drydock wat check you will do on tailshaft", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston pressure / hydraulic leak testing after overhaul", "cross_family": true }, { "answer_id": "dus-p6-05", "score": 0.5926631689071655, "sibling_score": 0.5926631689071655, "answer_score": null, "sibling_qid": "KOL-2025-07-3822-Q005", "sibling_text": "as 2nd er 4 5 months layed over ship ready to commission what all checks to be carried out on me ae boiler both repeat", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Post-lay-up recommissioning — checks on ME, AE and boiler before returning to service", "cross_family": true } ] }, { "qid": "KOL-2025-11-1114-Q001", "text": "What type of ship Crude oil tanker What type of crude Pure crude: vlcc", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2025-11-1114", "tray": "review", "candidates": [ { "answer_id": "COT-01", "score": 0.663170576095581, "sibling_score": 0.663170576095581, "answer_score": 0.5103109955787658, "sibling_qid": "MUM-2026-01-0696-Q002", "sibling_text": "type of oil tanker difference between ulcc and vlcc", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Oil-tanker types, definitions and cargo capability", "cross_family": true }, { "answer_id": "IBC-BCH-B-004", "score": 0.6546790599822998, "sibling_score": 0.6546790599822998, "answer_score": null, "sibling_qid": "MUM-2026-05-3156-Q001", "sibling_text": "type of ships chemical tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Certificate of Fitness and MARPOL Annex II in practice", "cross_family": false }, { "answer_id": "MARPOL-OV-002", "score": 0.6449533700942993, "sibling_score": 0.6449533700942993, "answer_score": null, "sibling_qid": "MUM-2026-09-3976-Q004", "sibling_text": "vlcc which are marpol annex applicable", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "The six annexes and what each covers", "cross_family": true } ] }, { "qid": "KOL-2025-11-1114-Q003", "text": "What do you know about explosive meter?", "family": "Risk & Safety Management", "subtopic": "Enclosed Space Entry", "tid": "KOL-2025-11-1114", "tray": "review", "candidates": [ { "answer_id": "GAS-DET-008", "score": 0.7606708407402039, "sibling_score": 0.7606708407402039, "answer_score": 0.5437195122241973, "sibling_qid": "CHE-2026-02-0475-Q006", "sibling_text": "explosive meter working", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "Explosimeter: construction, working, calibration, gases detected", "cross_family": false }, { "answer_id": "ESE-P01-009", "score": 0.6973971724510193, "sibling_score": 0.6973971724510193, "answer_score": null, "sibling_qid": "KOL-2025-09-1051-Q007", "sibling_text": "in what atmosphere explosion meter will not work what is the other name of explosion meter", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "Atmosphere checks, gases to test and safe entry limits", "cross_family": false }, { "answer_id": "ESE-P02-003", "score": 0.6569883227348328, "sibling_score": 0.6569883227348328, "answer_score": 0.43841054439544674, "sibling_qid": "KOL-2025-03-0915-Q005", "sibling_text": "explosimeter will not give accurate reading in which atmosphere", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "ESE-P02-03. Explosimeter (catalytic detector): where it reads wrong", "cross_family": false } ] }, { "qid": "KOL-2025-11-1117-Q001", "text": "Vessel type", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2025-11-1117", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8375237584114075, "sibling_score": 0.8375237584114075, "answer_score": null, "sibling_qid": "MUM-2026-06-3384-Q001", "sibling_text": "type of vessel", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.755794107913971, "sibling_score": 0.755794107913971, "answer_score": null, "sibling_qid": "CHE-2026-02-0481-Q001", "sibling_text": "type of vessels sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7513262629508972, "sibling_score": 0.7513262629508972, "answer_score": 0.5115907669067382, "sibling_qid": "CHE-2026-02-0109-Q001", "sibling_text": "type of ship explain what type is your vessel explain their type and difference", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "KOL-2025-11-1118-Q002", "text": "Ism code", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOL-2025-11-1118", "tray": "review", "candidates": [ { "answer_id": "ISM-ELEM-002", "score": 0.7959063053131104, "sibling_score": 0.7959063053131104, "answer_score": 0.41637461483478544, "sibling_qid": "MUM-2026-06-3653-Q001", "sibling_text": "ism code", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the ISM Code?", "cross_family": false }, { "answer_id": "ISM-ELEM-003", "score": 0.41558131873607634, "sibling_score": null, "answer_score": 0.41558131873607634, "sibling_qid": "", "sibling_text": "elements chapters structure of the ism code part a implementation the 12 elements 1 general 1 1 definitions 1 2 objectives 1 3 application 1 4 functional requirements for an sms", "sibling_family": "", "via": "answer_title", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": false }, { "answer_id": "ISM-AUD-P02-002", "score": 0.38878943771123886, "sibling_score": null, "answer_score": 0.38878943771123886, "sibling_qid": "", "sibling_text": "ism code what it is purpose objectives and structure full name carries both limbs safe operation of ships and pollution prevention never drop the pollution half adopted by resolution a 741 18 in 1993 given legal force through solas chapter ix in force 1 july 1998 phase 1", "sibling_family": "", "via": "answer_title", "answer_title": "ISM Code — what it is, purpose, objectives and structure", "cross_family": false } ] }, { "qid": "KOL-2025-11-1120-Q005", "text": "scantling draft Wait for result", "family": "", "subtopic": "Scantlings", "tid": "KOL-2025-11-1120", "tray": "new", "candidates": [ { "answer_id": "LLC-P05-001", "score": 0.5242018699645996, "sibling_score": 0.5242018699645996, "answer_score": null, "sibling_qid": "MUM-2026-06-3455-Q002", "sibling_text": "scantling draft", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Freeboard, deck line, Plimsoll mark, assignment and scantling draft", "cross_family": false }, { "answer_id": "COC-001", "score": 0.46740007400512695, "sibling_score": 0.46740007400512695, "answer_score": null, "sibling_qid": "KOL-2025-08-1015-Q007", "sibling_text": "condition of class waiting for result", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is a Condition of Class? Give examples, say where it is found, how much time is given to rectify it, and what happens if it is not met in time.", "cross_family": false }, { "answer_id": "LLC-SUR-POA-3-FINAL-001", "score": 0.44572436809539795, "sibling_score": 0.44572436809539795, "answer_score": null, "sibling_qid": "KOL-2025-11-1119-Q005", "sibling_text": "condition of assignment wait for result", "sibling_family": "", "via": "sibling", "answer_title": "Conditions of assignment of freeboard", "cross_family": false } ] }, { "qid": "KOL-2025-11-1121-Q001", "text": "Type of ship , status of written & orals company name", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2025-11-1121", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8692581057548523, "sibling_score": 0.8692581057548523, "answer_score": null, "sibling_qid": "KOC-2026-08-2106-Q001", "sibling_text": "status of written oral company type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.6921634674072266, "sibling_score": 0.6921634674072266, "answer_score": null, "sibling_qid": "MUM-2026-05-3139-Q001", "sibling_text": "status of oral and written type of ship sailed container nomenclature of main and auxiliary engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.6893636584281921, "sibling_score": 0.6893636584281921, "answer_score": null, "sibling_qid": "KOC-2026-03-0873-Q001", "sibling_text": "type of ship company", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "KOL-2025-11-1121-Q003", "text": "As 2nd engineer How will you ensure that forms used onboard are latest versions.", "family": "ISM Code", "subtopic": "SMS / Functional Requirements", "tid": "KOL-2025-11-1121", "tray": "new", "candidates": [ { "answer_id": "BC-IMSBC-005", "score": 0.4155193865299225, "sibling_score": 0.4155193865299225, "answer_score": null, "sibling_qid": "MUM-2026-09-3968-Q005", "sibling_text": "latest amendments of ism fss", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "5. Latest IMSBC Code amendments", "cross_family": false }, { "answer_id": "PSC-005", "score": 0.4108520746231079, "sibling_score": 0.4108520746231079, "answer_score": null, "sibling_qid": "MUM-2023-05-0102-Q005", "sibling_text": "as a 2nd eng how will u make sure it is complied", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "5. As second engineer: preparing for PSC and ensuring compliance", "cross_family": true }, { "answer_id": "ISM-AUD-P03-004", "score": 0.40843552350997925, "sibling_score": 0.40843552350997925, "answer_score": 0.31709691137075424, "sibling_qid": "CHE-2026-05-0565-Q010", "sibling_text": "ism how u will ensure ism is implemented onboard", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Ensuring ISM / SMS is implemented and followed onboard", "cross_family": false } ] }, { "qid": "KOL-2025-11-1122-Q001", "text": "Safety Type of ship- Container", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2025-11-1122", "tray": "review", "candidates": [ { "answer_id": "SOLAS12-BC-B-001", "score": 0.7636734843254089, "sibling_score": 0.7636734843254089, "answer_score": null, "sibling_qid": "MUM-2026-06-3622-Q001", "sibling_text": "type of ship container and bulk safety", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Additional safety measures for bulk carriers (SOLAS Chapter XII)", "cross_family": false }, { "answer_id": "DB-TORBOX-B-003", "score": 0.7179818749427795, "sibling_score": 0.7179818749427795, "answer_score": null, "sibling_qid": "CHE-2026-04-0150-Q001", "sibling_text": "type of ship sailed container", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "What is a torsion box — definition and construction", "cross_family": false }, { "answer_id": "CO2-SYS-005", "score": 0.6692960262298584, "sibling_score": 0.6692960262298584, "answer_score": null, "sibling_qid": "KOL-2022-01-0600-Q001", "sibling_text": "type of ship bulk co2 safeties", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 system safeties, CO2-room requirements, alarms and ventilation", "cross_family": true } ] }, { "qid": "KOL-2025-11-1126-Q005", "text": "MLC Regulation", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "KOL-2025-11-1126", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-010", "score": 0.5464920997619629, "sibling_score": 0.5464920997619629, "answer_score": null, "sibling_qid": "MUM-2025-11-0573-Q004", "sibling_text": "how are wages set under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "SEA, the CBA parties, and how wages are set — action on non-payment", "cross_family": false }, { "answer_id": "MLC-WRH-B-006", "score": 0.5128033757209778, "sibling_score": 0.5128033757209778, "answer_score": null, "sibling_qid": "MUM-2026-07-3680-Q005", "sibling_text": "what is mlc certificate under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false }, { "answer_id": "MLC-WRH-B-007", "score": 0.5062716007232666, "sibling_score": 0.5062716007232666, "answer_score": 0.3115603804588318, "sibling_qid": "MUM-2026-01-0701-Q002", "sibling_text": "detainable deficiency of mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false } ] }, { "qid": "KOL-2025-11-1129-Q003", "text": "CSR meaning and purpose", "family": "Surveys - Statutory", "subtopic": "CSR / Continuous Synopsis Record", "tid": "KOL-2025-11-1129", "tray": "new", "candidates": [ { "answer_id": "CSR-585-001", "score": 0.6290048956871033, "sibling_score": 0.6290048956871033, "answer_score": 0.31732127666473386, "sibling_qid": "KOC-2025-11-0718-Q006", "sibling_text": "what is csr", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the Continuous Synopsis Record (CSR)? Explain its purpose and requirements.", "cross_family": false }, { "answer_id": "CERT-LIST-P01-001", "score": 0.576780378818512, "sibling_score": 0.576780378818512, "answer_score": null, "sibling_qid": "KOL-2026-01-1159-Q006", "sibling_text": "csr and its forms", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "List the statutory certificates carried onboard a ship.", "cross_family": false }, { "answer_id": "SVY-SCOPE-004", "score": 0.4231390357017517, "sibling_score": 0.4231390357017517, "answer_score": null, "sibling_qid": "MUM-2023-08-2741-Q014", "sibling_text": "csm requirement", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What are the CSM requirements, and how is CSM carried out for a machine?", "cross_family": false } ] }, { "qid": "KOL-2025-11-1825-Q003", "text": "How Axial pump works and where it is used?", "family": "Pumps - Centrifugal & PD", "subtopic": "Axial Flow Pump", "tid": "KOL-2025-11-1825", "tray": "new", "candidates": [ { "answer_id": "PCD-P05-02", "score": 0.6239085793495178, "sibling_score": 0.6239085793495178, "answer_score": null, "sibling_qid": "KOL-2021-04-1902-Q004", "sibling_text": "screw pump axial thrust", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Screw pump — construction, working, types, drive arrangement, clearances, why preferred over gear", "cross_family": false }, { "answer_id": "HSAP-583-A-013", "score": 0.6204324960708618, "sibling_score": 0.6204324960708618, "answer_score": 0.5120697438716888, "sibling_qid": "KOL-2020-02-0390-Q012", "sibling_text": "why axial flow pumps are used", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "\"Why are axial flow pumps used?\"", "cross_family": false }, { "answer_id": "HSAP-B-001", "score": 0.6136294007301331, "sibling_score": 0.6136294007301331, "answer_score": 0.47803659141063687, "sibling_qid": "KOL-2021-12-1649-Q004", "sibling_text": "axial piston pump", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Axial piston / swash-plate pump — construction, working, swash-plate function and maximum angle, delivery and direction control", "cross_family": false } ] }, { "qid": "KOL-2025-11-1825-Q007", "text": "How to pressure test double bottom tank ? What will be the pressure for testing?", "family": "Boilers - Safety & Survey", "subtopic": "Hydrostatic Test", "tid": "KOL-2025-11-1825", "tray": "review", "candidates": [ { "answer_id": "DBTB-A-003", "score": 0.7486511468887329, "sibling_score": 0.7486511468887329, "answer_score": 0.6036504536867141, "sibling_qid": "KOC-2026-02-2000-Q003", "sibling_text": "double bottom tank pressure testing", "sibling_family": "", "via": "sibling", "answer_title": "Carrying out a double-bottom tank pressure / tank test", "cross_family": false }, { "answer_id": "ACCT-583-A-001", "score": 0.6935666799545288, "sibling_score": 0.6935666799545288, "answer_score": null, "sibling_qid": "MUM-2026-09-3962-Q001", "sibling_text": "accumulation of pressure test purpose hoe to carry out", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Explain the boiler accumulation pressure test — what it is, its purpose, and how it is carried out (including when and at what interval)", "cross_family": false }, { "answer_id": "HYD-602-004", "score": 0.5194182962179184, "sibling_score": null, "answer_score": 0.5194182962179184, "sibling_qid": "", "sibling_text": "what pump raises the pressure and what pressure and measurements are applied pump a dedicated controllable hydraulic test pump positive displacement plunger piston type hand driven on small boilers motor driven on large ones it must carry its own relief valve set and verified as the approved test procedure requires on incompressible water one extra stroke can spike the pressure", "sibling_family": "", "via": "answer_title", "answer_title": "What pump raises the pressure, and what pressure and measurements are applied?", "cross_family": false } ] }, { "qid": "KOL-2025-11-1825-Q009", "text": "AE crankcase inspection. What will you check?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE CRANKCASE", "tid": "KOL-2025-11-1825", "tray": "review", "candidates": [ { "answer_id": "CRKC-INSP-001", "score": 0.8604463934898376, "sibling_score": 0.8604463934898376, "answer_score": null, "sibling_qid": "MUM-2026-02-2579-Q006", "sibling_text": "crankcase inspection of ae what all check", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Routine main-engine crankcase inspection — checks as 2/E", "cross_family": false }, { "answer_id": "CC-RELIEF-312-002", "score": 0.7678600549697876, "sibling_score": 0.7678600549697876, "answer_score": null, "sibling_qid": "MUM-2025-12-2889-Q004", "sibling_text": "crankcase inspection", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Crankcase / camcase inspection — checks and contamination", "cross_family": true }, { "answer_id": "CXH-BRG-FINAL-1-003", "score": 0.5738781899213791, "sibling_score": null, "answer_score": 0.5738781899213791, "sibling_qid": "", "sibling_text": "crosshead bearing failure indications detection at crankcase inspection on rounds knock pound oil outlet temperature rise crosshead oil pressure flow drop omd activity metal in crankcase oil or at the filter at crankcase inspection edge squeezed white metal fretting movement marks displaced or nipped shell slack stretched bolts smeared metal", "sibling_family": "", "via": "answer_title", "answer_title": "Crosshead bearing failure: indications & detection at crankcase inspection", "cross_family": false } ] }, { "qid": "KOL-2025-11-1826-Q002", "text": "Reason for main engine longitudinal guirder crack.", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Bedplate / A-Frame", "tid": "KOL-2025-11-1826", "tray": "new", "candidates": [ { "answer_id": "FWFB-P02-008", "score": 0.6261052489280701, "sibling_score": 0.6261052489280701, "answer_score": null, "sibling_qid": "MUM-2026-05-3138-Q005", "sibling_text": "reason for girder crack", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Forces and stresses on transverse girders; action for cracks", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.5760666131973267, "sibling_score": 0.5760666131973267, "answer_score": null, "sibling_qid": "CHE-2026-03-0495-Q005", "sibling_text": "crack in the rudder as 2eng prepare repair plan internal deciding", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": true }, { "answer_id": "CRK-DEFL-001", "score": 0.5473681688308716, "sibling_score": 0.5473681688308716, "answer_score": null, "sibling_qid": "CHE-2026-05-0648-Q005", "sibling_text": "stresses on crank shaft not accepting any stress", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Purpose, timing and scope of crankshaft deflection", "cross_family": false } ] }, { "qid": "KOL-2025-11-2022-Q001", "text": "and 6 (3rd Attempt in both functions) Introduction,types of vessels and engines worked till now.", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "KOL-2025-11-2022", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.682636559009552, "sibling_score": 0.682636559009552, "answer_score": null, "sibling_qid": "CHE-2026-03-0255-Q001", "sibling_text": "type of vessel and engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.6646053791046143, "sibling_score": 0.6646053791046143, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q001", "sibling_text": "type of ship sailed and engines details", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "EECS-005", "score": 0.444875568151474, "sibling_score": null, "answer_score": 0.444875568151474, "sibling_qid": "", "sibling_text": "05 seemp and eedi what the seemp and eedi files hold on board eedi technical file attained eedi calculation engine sfc speed capacity data esd credits sea trial confirmed seemp carried per its applicable parts part i 400 gt part ii 5000 gt part iii 5000 gt in the specified cii ship categories ongoing ship specific plan", "sibling_family": "", "via": "answer_title", "answer_title": "05. SEEMP and EEDI — what the SEEMP and EEDI files hold on board", "cross_family": false } ] }, { "qid": "KOL-2025-11-2022-Q007", "text": ")How do you convert a Purifier into a Clarifer?", "family": "Purifier & Centrifuges", "subtopic": "Clarifier vs Purifier", "tid": "KOL-2025-11-2022", "tray": "review", "candidates": [ { "answer_id": "PUR-BOWL-P03-FINAL-1-004", "score": 0.7113930583000183, "sibling_score": 0.7113930583000183, "answer_score": 0.42927583456039425, "sibling_qid": "KOL-2022-07-3554-Q004", "sibling_text": "how to convert purifier to clarifier", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "4. Purifier versus Clarifier — Differences, Conversion and Batch Purification", "cross_family": false }, { "answer_id": "PUR-OPS-P01-003", "score": 0.6689718961715698, "sibling_score": 0.6689718961715698, "answer_score": null, "sibling_qid": "KOL-2026-03-1836-Q004", "sibling_text": "how to convert purifier to clarifier he answered put blank disc at bottom removed gravity disc shut off water supply put sealing ring", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Gravity disc, E-line and the oil-water interface — purpose, selection, and the effect of a shift", "cross_family": false }, { "answer_id": "PURIF-172-006", "score": 0.5351113677024841, "sibling_score": 0.5351113677024841, "answer_score": 0.32867461144924165, "sibling_qid": "MUM-2025-07-2330-Q005", "sibling_text": "purifier operation", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Operation, types, throughput & 24V control loss", "cross_family": false } ] }, { "qid": "KOL-2025-11-2024-Q001", "text": "type of engine sailed", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOL-2025-11-2024", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8489938378334045, "sibling_score": 0.8489938378334045, "answer_score": null, "sibling_qid": "MUM-2026-04-1007-Q002", "sibling_text": "type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.7679435610771179, "sibling_score": 0.7679435610771179, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q001", "sibling_text": "type of ship sailed and engines details", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7359977960586548, "sibling_score": 0.7359977960586548, "answer_score": null, "sibling_qid": "KOL-2025-12-2031-Q002", "sibling_text": "type of ship and engine sailed engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "KOL-2025-11-2025-Q006", "text": "High lift and improved high lift safety valve. What components make it a improved high lift.", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2025-11-2025", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.7918553948402405, "sibling_score": 0.7918553948402405, "answer_score": null, "sibling_qid": "MUM-2026-06-3405-Q017", "sibling_text": "improved high lift safety valve details", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACSS-002", "score": 0.4418299555778503, "sibling_score": null, "answer_score": 0.4418299555778503, "sibling_qid": "", "sibling_text": "relief safety valves settings testing lifting reasons bursting disc set just above stage working pressure the class standard accumulation limit is about 10 though the exact set point is a maker sms value non isolable from its stage test to the maker s method easing gear or test rig for lifting pressure log and reset", "sibling_family": "", "via": "answer_title", "answer_title": "Relief / safety valves: settings, testing, lifting reasons; bursting disc", "cross_family": false }, { "answer_id": "SCAV-323-P02-008", "score": 0.43620934784412385, "sibling_score": null, "answer_score": 0.43620934784412385, "sibling_qid": "", "sibling_text": "safeties and relief arrangements for the scavenge space hazard oily deposits blow past air scavenge fire explosion relief valve door fitted per the maker s design scavenge air receiver or cylinder section spring loaded cup spring lifts at permitted overpressure self closing to prevent air re entry", "sibling_family": "", "via": "answer_title", "answer_title": "Safeties and relief arrangements for the scavenge space", "cross_family": false } ] }, { "qid": "KOL-2025-11-2902-Q002", "text": "Steering gear motor safeties ?", "family": "Steering Gear & Hydraulics", "subtopic": "Steering Gear Motor", "tid": "KOL-2025-11-2902", "tray": "review", "candidates": [ { "answer_id": "STEER-055-A-002", "score": 0.7924417853355408, "sibling_score": 0.7924417853355408, "answer_score": null, "sibling_qid": "MUM-2024-12-1480-Q006", "sibling_text": "safieties of steering gear motor", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Steering gear motor and power unit", "cross_family": false }, { "answer_id": "SGM-ELEC-001", "score": 0.7691116333007812, "sibling_score": 0.7691116333007812, "answer_score": 0.5877206444740295, "sibling_qid": "MUM-2025-06-1536-Q001", "sibling_text": "special safeties for steering gear motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What are the safeties, alarms and trips on the steering gear motor as per SOLAS — and how do you activate the safematic?", "cross_family": true }, { "answer_id": "SGM-ELEC-002", "score": 0.7643042802810669, "sibling_score": 0.7643042802810669, "answer_score": null, "sibling_qid": "MUM-2026-05-3190-Q008", "sibling_text": "steering gear motor safeties", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What type of motor is the steering gear motor, how does it differ from other engine-room motors, and how do you order one?", "cross_family": true } ] }, { "qid": "KOL-2025-11-2906-Q002", "text": "what are internal safeties in alternator ?", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator Protection", "tid": "KOL-2025-11-2906", "tray": "review", "candidates": [ { "answer_id": "ALT-GEN-P01-001", "score": 0.7827309966087341, "sibling_score": 0.7827309966087341, "answer_score": 0.5499672889709473, "sibling_qid": "KOL-2026-01-2950-Q002", "sibling_text": "alternator internal safeties", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Alternator/generator safeties and protection trips", "cross_family": false }, { "answer_id": "SHAFT-GEN-005", "score": 0.5246937304735183, "sibling_score": null, "answer_score": 0.5246937304735183, "sibling_qid": "", "sibling_text": "safeties provided for a shaft generator standard alternator protections over current short circuit over under voltage over under frequency reverse power paralleled earth fault and preferential load shedding trips sg specific interlocks breaker closes only when synchronised clutch gear engagement interlocks", "sibling_family": "", "via": "answer_title", "answer_title": "Safeties provided for a shaft generator", "cross_family": false }, { "answer_id": "EMG-DG-P04-004", "score": 0.48540784120559693, "sibling_score": null, "answer_score": 0.48540784120559693, "sibling_qid": "", "sibling_text": "safeties trips protections failure to start come on load protection philosophy minimal by design losing emergency power is worse than running the set hard so non critical trips are often alarm only overridden in emergency mode maker and flag dependent typically fitted short circuit overload breaker overspeed low lo pressure sometimes high cooling water temp reverse power only where it can parallel", "sibling_family": "", "via": "answer_title", "answer_title": "Safeties, trips, protections & failure to start / come on load", "cross_family": false } ] }, { "qid": "KOL-2025-11-2919-Q001", "text": "Starter inspection? Cross questions", "family": "Electrical - Motors & Starters", "subtopic": "Starter Maintenance / Inspection", "tid": "KOL-2025-11-2919", "tray": "review", "candidates": [ { "answer_id": "SOFT-START-P01-001", "score": 0.7061657309532166, "sibling_score": 0.7061657309532166, "answer_score": null, "sibling_qid": "KOL-2025-07-2818-Q003", "sibling_text": "soft starter cross questions", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Soft Starter — Definition, Purpose and Working", "cross_family": false }, { "answer_id": "CONT-317-001", "score": 0.6203444600105286, "sibling_score": 0.6203444600105286, "answer_score": null, "sibling_qid": "KOL-2019-02-2265-Q001", "sibling_text": "continuity test procedure cross questions", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Continuity test of a motor winding — what it is and how it is done", "cross_family": false }, { "answer_id": "STR-DEC-A-001", "score": 0.6066765189170837, "sibling_score": 0.6066765189170837, "answer_score": null, "sibling_qid": "MUM-2026-05-3296-Q002", "sibling_text": "type of motor starters used on your ship and cross questions", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false } ] }, { "qid": "KOL-2025-11-2919-Q006", "text": "ICCP ?", "family": "Electrical - ICCP & Cathodic Protection", "subtopic": "ICCP", "tid": "KOL-2025-11-2919", "tray": "review", "candidates": [ { "answer_id": "ICCP-119-P01-001", "score": 0.7969819903373718, "sibling_score": 0.7969819903373718, "answer_score": 0.4761619746685028, "sibling_qid": "MUM-2025-08-1578-Q012", "sibling_text": "iccp", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP — purpose, principle and basic working", "cross_family": false }, { "answer_id": "ICCP-119-P01-002", "score": 0.4517205715179443, "sibling_score": null, "answer_score": 0.4517205715179443, "sibling_qid": "", "sibling_text": "iccp circuit control arrangement construction and main components", "sibling_family": "", "via": "answer_title", "answer_title": "ICCP circuit / control arrangement, construction and main components", "cross_family": false }, { "answer_id": "ICCP-119-P01-003", "score": 0.39582156836986543, "sibling_score": null, "answer_score": 0.39582156836986543, "sibling_qid": "", "sibling_text": "iccp values impressed current meaning anode cathode roles and materials", "sibling_family": "", "via": "answer_title", "answer_title": "ICCP values, impressed-current meaning, anode/cathode roles and materials", "cross_family": false } ] }, { "qid": "KOL-2025-11-3872-Q003", "text": "Rudder inspection and measurements of clearances. If found corroded from inside your actions.", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2025-11-3872", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.734890878200531, "sibling_score": 0.734890878200531, "answer_score": 0.5424494177103042, "sibling_qid": "KOL-2020-09-3346-Q009", "sibling_text": "clearances that you will measure for propellor and rudder in drydock how to check pintle clearance without removing rudder from place finally can breathe freely thanx everyone for all the help", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "RUD-DROP-003", "score": 0.6903423070907593, "sibling_score": 0.6903423070907593, "answer_score": null, "sibling_qid": "KOL-2026-01-4081-Q007", "sibling_text": "rudder clearance high before leaving drydock action clearance and overhaul", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Rudder drop at the limit: the decision", "cross_family": false }, { "answer_id": "RUD-DROP-002", "score": 0.5834264695644379, "sibling_score": null, "answer_score": 0.5834264695644379, "sibling_qid": "", "sibling_text": "rudder clearances which where and how taken pintle bush clearance at each pintle top bottom f a and p s on long feeler gauges or pintle od vs bush id by caliper top mid bottom the maximum is the clearance renew the bush at the maker class limit carrier bearing wear down the rudder drop poker trammel gauge hull datum to stock mark against the recorded newbuilding reading", "sibling_family": "", "via": "answer_title", "answer_title": "Rudder clearances: which, where and how taken", "cross_family": false } ] }, { "qid": "KOL-2025-11-3872-Q005", "text": "smoke from aux engine sump dip stick corrective action and how you will find the defective unit.", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE Hot / Blow Past", "tid": "KOL-2025-11-3872", "tray": "new", "candidates": [ { "answer_id": "AE-CRP-002", "score": 0.5728944540023804, "sibling_score": 0.5728944540023804, "answer_score": null, "sibling_qid": "KOL-2019-04-3231-Q003", "sibling_text": "aux engine one unit piston stuck how to remove", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Seized piston in an AE liner — actions and safe removal", "cross_family": false }, { "answer_id": "AE-HOT-BLOW-002", "score": 0.5502318143844604, "sibling_score": 0.5502318143844604, "answer_score": 0.47048832178115846, "sibling_qid": "MUM-2025-05-2295-Q006", "sibling_text": "on deck you smell exhaust gas from the vent heads what will be your action and reasons for smell told exhaust from ae crankcase due to blowpast leading to mist box", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "How you know blow-past is occurring in an auxiliary engine — indications and effects", "cross_family": false }, { "answer_id": "AE-CRP-007", "score": 0.5488505959510803, "sibling_score": 0.5488505959510803, "answer_score": null, "sibling_qid": "KOL-2026-01-3903-Q002", "sibling_text": "aux engine bottom end bearing inspection", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE big-end / bottom-end bearing — inspection, bedding, nip and crush", "cross_family": false } ] }, { "qid": "KOL-2025-11-3873-Q003", "text": "ME turbocharger lub oil pressure drop. Reason? 3 . Fish room temp increasing?", "family": "Turbocharger", "subtopic": "TC Bearing", "tid": "KOL-2025-11-3873", "tray": "review", "candidates": [ { "answer_id": "EXHV-297-007", "score": 0.7136374115943909, "sibling_score": 0.7136374115943909, "answer_score": null, "sibling_qid": "MUM-2026-06-3415-Q006", "sibling_text": "high temperature drop across turbocharger problems", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Exhaust manifold / gas receiver — construction, joints, inspection & temperature locations", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-014", "score": 0.7109608054161072, "sibling_score": 0.7109608054161072, "answer_score": null, "sibling_qid": "KOL-2026-03-3931-Q005", "sibling_text": "turbocharger blower side oil renewed level going down reason", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "14. Blower-side oil level reduces after oil renewal — why", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-013", "score": 0.6564978361129761, "sibling_score": 0.6564978361129761, "answer_score": null, "sibling_qid": "KOL-2026-03-3928-Q004", "sibling_text": "turbocharger compressor side oil renewed and now found leaking answered sealing air valve closed by accident", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "13. Compressor-side oil leaks after oil renewal — why", "cross_family": false } ] }, { "qid": "KOL-2025-11-3873-Q005", "text": "How to calculate SFOC of generator after overhaul?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "SFOC", "tid": "KOL-2025-11-3873", "tray": "new", "candidates": [ { "answer_id": "SFOC-002", "score": 0.6111041903495789, "sibling_score": 0.6111041903495789, "answer_score": 0.4225439131259918, "sibling_qid": "KOL-2019-12-1505-Q006", "sibling_text": "sfoc calculation not only the formula how we calculate while taking engine performance or in noon report", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "How do you calculate SFOC on board? The step-by-step procedure", "cross_family": false }, { "answer_id": "SFOC-001", "score": 0.608746349811554, "sibling_score": 0.608746349811554, "answer_score": null, "sibling_qid": "MUM-2025-10-0986-Q007", "sibling_text": "how to calculate sfoc of engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What is SFOC? Definition, formula, unit — and how you get the corrected density", "cross_family": false }, { "answer_id": "AEFP-471-002", "score": 0.45725864768028257, "sibling_score": null, "answer_score": 0.45725864768028257, "sibling_qid": "", "sibling_text": "how do you measure the quantity of fuel oil injected in a generator engine whole engine flowmeter or tank drop over a timed steady load run correct for temperature density and any return line to the tank with kwh produced this gives sfoc broad representative order about 180 220 g kwh for many medium speed gensets but the engine s test bed technical file value governs", "sibling_family": "", "via": "answer_title", "answer_title": "How do you measure the quantity of fuel oil injected in a generator engine?", "cross_family": false } ] }, { "qid": "KOL-2025-11-3874-Q001", "text": "Different tests on steel ?", "family": "NDT & Material Testing", "subtopic": "NDT Methods (MPI/DPT/UT/RT)", "tid": "KOL-2025-11-3874", "tray": "new", "candidates": [ { "answer_id": "STEEL-GR-004", "score": 0.6231765747070312, "sibling_score": 0.6231765747070312, "answer_score": null, "sibling_qid": "MUM-2026-05-3173-Q002", "sibling_text": "different types of steel", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Types of steel and the effect of alloying elements", "cross_family": false }, { "answer_id": "PLT-DBL-004", "score": 0.6201807260513306, "sibling_score": 0.6201807260513306, "answer_score": 0.4928197741508484, "sibling_qid": "KOL-2026-03-3929-Q007", "sibling_text": "tests on new steel plate", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "What tests are carried out on a new / newly-fitted steel plate?", "cross_family": true }, { "answer_id": "MATPROP-A-004", "score": 0.6084535717964172, "sibling_score": 0.6084535717964172, "answer_score": null, "sibling_qid": "KOL-2022-03-3524-Q004", "sibling_text": "cast iron and cast steel difference endurance limit and how to test it", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Mechanical properties", "cross_family": false } ] }, { "qid": "KOL-2025-11-3876-Q002", "text": "Rudder inspection during drydock, what checks you'll do, how internal surface is painted, clearances for rudder.", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Painting", "tid": "KOL-2025-11-3876", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.7828948497772217, "sibling_score": 0.7828948497772217, "answer_score": 0.5585443407297134, "sibling_qid": "KOL-2018-09-1417-Q005", "sibling_text": "all rudder clearances in detail and checks on a rudder in dry dock", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "HULL-PAINT-002", "score": 0.7500497698783875, "sibling_score": 0.7500497698783875, "answer_score": null, "sibling_qid": "CHE-2026-02-0110-Q012", "sibling_text": "rudder internal painting", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Types of hull coating, the paint scheme by section, and why each is used", "cross_family": false }, { "answer_id": "DUS-P5-05", "score": 0.6161387622356415, "sibling_score": null, "answer_score": 0.6161387622356415, "sibling_qid": "", "sibling_text": "rudder checks and rudder blade tightness leak test in drydock visual checks coating condition cavitation erosion on the blade leading edge propeller side face sacrificial anodes against the approved cathodic protection plan grounding continuity against the approved acceptance criterion plate and weld cracks pintle clearance measured with feeler the numerical acceptance limit is class specific and ", "sibling_family": "", "via": "answer_title", "answer_title": "Rudder checks and rudder-blade tightness/leak test in drydock", "cross_family": false } ] }, { "qid": "KOL-2025-11-3877-Q004", "text": "Safety valve, all parts", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2025-11-3877", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.705217719078064, "sibling_score": 0.705217719078064, "answer_score": null, "sibling_qid": "MUM-2026-09-3885-Q006", "sibling_text": "all types of safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.6658862233161926, "sibling_score": 0.6658862233161926, "answer_score": null, "sibling_qid": "MUM-2026-03-2589-Q003", "sibling_text": "checks on safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "MR-DS-PV-B-006", "score": 0.6611139178276062, "sibling_score": 0.6611139178276062, "answer_score": null, "sibling_qid": "KOC-2026-09-2180-Q009", "sibling_text": "full bore safety valve construction", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "6. Deck isolating valve, deck relief/safety devices, and cargo-tank pressure", "cross_family": false } ] }, { "qid": "KOL-2025-11-3877-Q005", "text": "What is huddling chamber", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2025-11-3877", "tray": "new", "candidates": [ { "answer_id": "ESE-P01-003", "score": 0.3420563340187073, "sibling_score": 0.3420563340187073, "answer_score": null, "sibling_qid": "KOC-2026-08-2143-Q005", "sibling_text": "enclosed space", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "General enclosed-space entry procedure as second engineer", "cross_family": true }, { "answer_id": "ESE-P02-008", "score": 0.3416564166545868, "sibling_score": 0.3416564166545868, "answer_score": null, "sibling_qid": "KOL-2018-08-0211-Q011", "sibling_text": "enclosed space", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "ESE-P02-08. Before, during and after: confirming a space is safe to enter", "cross_family": true }, { "answer_id": "ESE-P01-001", "score": 0.33829107880592346, "sibling_score": 0.33829107880592346, "answer_score": null, "sibling_qid": "MUM-2026-05-3182-Q003", "sibling_text": "enclosed space definition", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "Definition and criteria of an enclosed space", "cross_family": true } ] }, { "qid": "KOL-2025-11-3879-Q001", "text": "SAVCON survey what you check on main engine", "family": "Surveys - Statutory", "subtopic": "Sample Preparation - Main Engine Survey", "tid": "KOL-2025-11-3879", "tray": "review", "candidates": [ { "answer_id": "SVY-SCOPE-007", "score": 0.7479493021965027, "sibling_score": 0.7479493021965027, "answer_score": 0.48026823699474336, "sibling_qid": "MUM-2026-02-1967-Q007", "sibling_text": "what all to be check on main engine in the survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "How should the Main Engine be prepared for a safety survey?", "cross_family": false }, { "answer_id": "SVY-SCOPE-002", "score": 0.6222999691963196, "sibling_score": 0.6222999691963196, "answer_score": null, "sibling_qid": "MUM-2023-01-0079-Q004", "sibling_text": "what items to check during safcon survey in engine room", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is checked in the engine room during a SAFCON (Safety Construction) survey?", "cross_family": false }, { "answer_id": "CPP-POL-01", "score": 0.6047945022583008, "sibling_score": 0.6047945022583008, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q015", "sibling_text": "what parameters do you check when taking main engine performance", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Why and how is a main-engine performance test prepared, taken and assessed?", "cross_family": true } ] }, { "qid": "KOL-2025-11-3880-Q005", "text": "main conrod defective how to proceed port", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Bottom End Bearing", "tid": "KOL-2025-11-3880", "tray": "new", "candidates": [ { "answer_id": "BEB-C-002", "score": 0.5974919199943542, "sibling_score": 0.5974919199943542, "answer_score": 0.3939340829849243, "sibling_qid": "KOL-2021-12-3492-Q002", "sibling_text": "bottom bearing damaged without damaging the pin proceed to port", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bottom end bearing damaged, no spare — action to reach port without damaging the pin", "cross_family": false }, { "answer_id": "CRKPIN-P02-003", "score": 0.5533684492111206, "sibling_score": 0.5533684492111206, "answer_score": 0.4179744303226471, "sibling_qid": "KOL-2022-07-3545-Q005", "sibling_text": "on unit crankpin bearing damage beyond repair no bearing onboard how to reach port", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankpin or bearing beyond repair / no spare — casualty action", "cross_family": true }, { "answer_id": "XHEAD-303-008", "score": 0.5027575492858887, "sibling_score": 0.5027575492858887, "answer_score": null, "sibling_qid": "MUM-2025-09-2390-Q005", "sibling_text": "crosshead of 1 unit is damaged how will you continue running the engine asked to logout rejoin", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Effects and signs of crosshead guide wear or damage, and operational action", "cross_family": false } ] }, { "qid": "KOL-2025-11-3881-Q008", "text": "Steam line distribution (wanted to hear tracing steam reducing valve)", "family": "Boilers - Construction & Components", "subtopic": "Steam Trap", "tid": "KOL-2025-11-3881", "tray": "new", "candidates": [ { "answer_id": "GV-330-001", "score": 0.6487179398536682, "sibling_score": 0.6487179398536682, "answer_score": null, "sibling_qid": "KOC-2026-03-1124-Q005", "sibling_text": "steam stop valve diagram", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Draw and explain the gate valve — construction, main parts, operation & onboard use", "cross_family": false }, { "answer_id": "BLR-GG-002", "score": 0.5833529233932495, "sibling_score": 0.5833529233932495, "answer_score": null, "sibling_qid": "KOC-2026-08-2163-Q024", "sibling_text": "what is the speciality of that valve in boiler gauge glass", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "What safety arrangements and precautions are provided for a boiler gauge glass?", "cross_family": false }, { "answer_id": "STM-TRAP-001", "score": 0.5779985785484314, "sibling_score": 0.5779985785484314, "answer_score": null, "sibling_qid": "KOC-2023-01-0127-Q005", "sibling_text": "steam trap types and drawing", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Types of steam trap, how they work, why and where fitted", "cross_family": false } ] }, { "qid": "KOL-2025-11-3881-Q010", "text": "ME LO px starting procedure (wanted to hear 3way recirc valve before and after heater)", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "LO Cooler", "tid": "KOL-2025-11-3881", "tray": "new", "candidates": [ { "answer_id": "SAV-003", "score": 0.548973798751831, "sibling_score": 0.548973798751831, "answer_score": null, "sibling_qid": "MUM-2025-07-2342-Q002", "sibling_text": "me unit no 3 starting air valve red hot actions", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Action when a unit starting air valve leaks or the line goes red hot in manoeuvring", "cross_family": true }, { "answer_id": "SAE-388-003", "score": 0.5078785419464111, "sibling_score": 0.5078785419464111, "answer_score": null, "sibling_qid": "MUM-2025-11-2876-Q002", "sibling_text": "st air line getting hot your first action as 2e he wanted close valve me air valve and drain line thats it", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "The starting air line is getting hot, or a starting valve is leaking — your action as 2nd Engineer?", "cross_family": true }, { "answer_id": "CAS-ESTOP-006", "score": 0.49774616956710815, "sibling_score": 0.49774616956710815, "answer_score": null, "sibling_qid": "KOC-2025-10-1056-Q009", "sibling_text": "no 3 unit starting air line hot your actions", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Abnormal symptoms — knocking, piston seizure, sump water, hot starting-air line", "cross_family": true } ] }, { "qid": "KOL-2025-11-3883-Q004", "text": "How to take out rudder carrier bearing? General idea", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2025-11-3883", "tray": "review", "candidates": [ { "answer_id": "PRE-TEN-001", "score": 0.7931003570556641, "sibling_score": 0.7931003570556641, "answer_score": null, "sibling_qid": "MUM-2026-06-3504-Q007", "sibling_text": "rudder carrier bearing removal procedure", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Pre-stressing and pre-tensioning in main-engine bolting", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.7519726753234863, "sibling_score": 0.7519726753234863, "answer_score": null, "sibling_qid": "MUM-2026-06-3610-Q003", "sibling_text": "removal of rudder bearing", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "TRS-002", "score": 0.6944294571876526, "sibling_score": 0.6944294571876526, "answer_score": null, "sibling_qid": "KOC-2026-02-1103-Q008", "sibling_text": "how rudder stock and carrier bearing is attached told 2 half fitted bolts x does bearing turn with rudder i told yes then he told that there are 2 types one turn with rudder other dont turn with rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false } ] }, { "qid": "KOL-2025-11-3884-Q001", "text": "Exhaust valve Hydraulic actuator damage, no spare how to proceed.", "family": "2-Stroke - Exhaust, Valve & Starting Air", "subtopic": "Exhaust Valve", "tid": "KOL-2025-11-3884", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.740052342414856, "sibling_score": 0.740052342414856, "answer_score": 0.5149018079042434, "sibling_qid": "KOL-2023-12-3660-Q004", "sibling_text": "exhaust actuator roller beyond repair no spares how to run engine", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "EXV-P02-001", "score": 0.6845550537109375, "sibling_score": 0.6845550537109375, "answer_score": 0.5182210564613342, "sibling_qid": "KOL-2017-12-3105-Q004", "sibling_text": "spare exhaust valve overhauling", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve overhaul & dismantling — procedure and precautions", "cross_family": false }, { "answer_id": "EXHV-297-002", "score": 0.6547886729240417, "sibling_score": 0.6547886729240417, "answer_score": 0.5334488153457642, "sibling_qid": "MUM-2025-07-2817-Q007", "sibling_text": "exhaust valve air spring not working what is there for back up", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Actuator parts, throttle/damper, air-spring failure & back-up", "cross_family": false } ] }, { "qid": "KOL-2025-11-3886-Q004", "text": "Globe valve overhaul", "family": "Pumps - Centrifugal & PD", "subtopic": "Bilge Line / Pump", "tid": "KOL-2025-11-3886", "tray": "review", "candidates": [ { "answer_id": "GV-330-002", "score": 0.7948803901672363, "sibling_score": 0.7948803901672363, "answer_score": 0.5224603623151779, "sibling_qid": "KOL-2026-03-3935-Q002", "sibling_text": "overhauling of globe valve", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Gate valve overhaul, checks & the stuck / not-operating valve", "cross_family": true }, { "answer_id": "EXV-P02-001", "score": 0.6091281175613403, "sibling_score": 0.6091281175613403, "answer_score": null, "sibling_qid": "KOC-2026-02-0807-Q010", "sibling_text": "exh valve overhauling procedure", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve overhaul & dismantling — procedure and precautions", "cross_family": true }, { "answer_id": "SDNR-SDR-001", "score": 0.6071487069129944, "sibling_score": 0.6071487069129944, "answer_score": null, "sibling_qid": "KOL-2026-07-4285-Q006", "sibling_text": "globe valve disadvantage", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "SDNR versus a plain globe valve -- telling them apart from outside, and the drawbacks of each", "cross_family": true } ] }, { "qid": "KOL-2025-11-3888-Q003", "text": "What is procedure of checking main engime foundation bolt. ( hammer and thumb method)", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Holding Down Bolts", "tid": "KOL-2025-11-3888", "tray": "new", "candidates": [ { "answer_id": "TBR-TT-P02-002", "score": 0.5983402132987976, "sibling_score": 0.5983402132987976, "answer_score": null, "sibling_qid": "MUM-2026-02-2548-Q003", "sibling_text": "holding down bolt tighness check", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Checking tie rod tightness / slackness — stopped and running", "cross_family": false }, { "answer_id": "TBR-TT-P02-001", "score": 0.589658796787262, "sibling_score": 0.589658796787262, "answer_score": null, "sibling_qid": "CHE-2026-05-0641-Q012", "sibling_text": "holding down bolts checks and tightening", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Tie rod tightening / hydraulic tensioning procedure", "cross_family": false }, { "answer_id": "CRB-002", "score": 0.5746859908103943, "sibling_score": 0.5746859908103943, "answer_score": 0.45447709560394284, "sibling_qid": "MUM-2025-09-2832-Q008", "sibling_text": "checks on con rod bolts", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What checks and tests are carried out on connecting rod bolts? Why NDT, why check elongation, what is the maximum limit, and which section tends to shear off?", "cross_family": true } ] }, { "qid": "KOL-2025-11-3889-Q001", "text": "How spindle & lid is connected in globe valve?", "family": "General Marine Engineering", "subtopic": "Glove Valve", "tid": "KOL-2025-11-3889", "tray": "new", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.543307900428772, "sibling_score": 0.543307900428772, "answer_score": null, "sibling_qid": "KOL-2025-07-1814-Q004", "sibling_text": "how spindle is fitted in exhaust valve", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": true }, { "answer_id": "GV-330-001", "score": 0.5294306874275208, "sibling_score": 0.5294306874275208, "answer_score": null, "sibling_qid": "KOC-2026-08-2117-Q004", "sibling_text": "globe valve or gate valve draw anyone", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Draw and explain the gate valve — construction, main parts, operation & onboard use", "cross_family": false }, { "answer_id": "GV-330-002", "score": 0.5251678824424744, "sibling_score": 0.5251678824424744, "answer_score": null, "sibling_qid": "KOL-2026-03-3935-Q002", "sibling_text": "overhauling of globe valve", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Gate valve overhaul, checks & the stuck / not-operating valve", "cross_family": false } ] }, { "qid": "KOL-2025-11-4070-Q004", "text": "How steam generated at sea", "family": "Boilers - Operations & Firing", "subtopic": "Boiler Water Circulation", "tid": "KOL-2025-11-4070", "tray": "review", "candidates": [ { "answer_id": "EGB-003", "score": 0.6869880557060242, "sibling_score": 0.6869880557060242, "answer_score": 0.49389070868492124, "sibling_qid": "KOL-2025-08-2006-Q002", "sibling_text": "how steam is generating in sea", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "What is the exhaust gas boiler, how does it recover waste heat, and how is steam raised at sea?", "cross_family": true }, { "answer_id": "BLR-OPS-005", "score": 0.5707254409790039, "sibling_score": 0.5707254409790039, "answer_score": null, "sibling_qid": "KOL-2023-07-3628-Q001", "sibling_text": "boiler raising steam after survey", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Raising steam after a boiler survey, and guiding the Fourth Engineer to fire it from cold.", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-001", "score": 0.5673298835754395, "sibling_score": 0.5673298835754395, "answer_score": null, "sibling_qid": "MUM-2026-02-1280-Q002", "sibling_text": "type of boiler compressor and generator on ship", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "1. Turbocharger type — main engine vs generator engine", "cross_family": true } ] }, { "qid": "KOL-2025-12-1137-Q001", "text": "Safety He asked What type of vessel sailed ( Gas tanker )..then From where u did Preparatory..", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2025-12-1137", "tray": "review", "candidates": [ { "answer_id": "IBC-BCH-B-004", "score": 0.6994654536247253, "sibling_score": 0.6994654536247253, "answer_score": null, "sibling_qid": "MUM-2026-03-0859-Q001", "sibling_text": "pre sea and vessel type chemical tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Certificate of Fitness and MARPOL Annex II in practice", "cross_family": false }, { "answer_id": "IGC-GAS-010", "score": 0.6834957003593445, "sibling_score": 0.6834957003593445, "answer_score": null, "sibling_qid": "KOC-2026-05-0030-Q001", "sibling_text": "safeties on gas tanker on deck", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Cargo-handling deck safeties and precautions (loading and discharge)", "cross_family": true }, { "answer_id": "LPG-LNG-009", "score": 0.6789649128913879, "sibling_score": 0.6789649128913879, "answer_score": null, "sibling_qid": "CHE-2026-04-0164-Q001", "sibling_text": "type of ship sailed lpg carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Gas-carrier fundamentals and ship-specific traps", "cross_family": false } ] }, { "qid": "KOL-2025-12-1137-Q004", "text": "Code for missed entry in ORB ?", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "KOL-2025-12-1137", "tray": "new", "candidates": [ { "answer_id": "OWS-ORB-006", "score": 0.6456888318061829, "sibling_score": 0.6456888318061829, "answer_score": null, "sibling_qid": "MUM-2025-09-0447-Q007", "sibling_text": "orb entries", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "6. Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-004", "score": 0.6212740540504456, "sibling_score": 0.6212740540504456, "answer_score": null, "sibling_qid": "KOC-2026-02-0805-Q007", "sibling_text": "weekly entries of orb code item no bunker missed entry", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Weekly ORB entries — the mandatory sludge retention record, the bunker entry, and what is voluntary", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-005", "score": 0.6170151233673096, "sibling_score": 0.6170151233673096, "answer_score": 0.33421962857246396, "sibling_qid": "KOC-2026-05-0044-Q003", "sibling_text": "bunker miss entry procedure for orb", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "A missed bunker entry — how to add it, and how that differs from correcting a wrong entry", "cross_family": false } ] }, { "qid": "KOL-2025-12-1138-Q004", "text": "For a bedplate what is the role of longitudinal and transverse girders 5.", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Bedplate / A-Frame", "tid": "KOL-2025-12-1138", "tray": "new", "candidates": [ { "answer_id": "FWFB-P02-007", "score": 0.6184152364730835, "sibling_score": 0.6184152364730835, "answer_score": 0.48580504655838014, "sibling_qid": "MUM-2026-05-3306-Q002", "sibling_text": "bedplate material types construction transverse longitudinal 3 girder etc material", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Transverse and longitudinal girders: arrangement and purpose", "cross_family": true }, { "answer_id": "KGF-A-005", "score": 0.49070337414741516, "sibling_score": 0.49070337414741516, "answer_score": null, "sibling_qid": "MUM-2025-07-0365-Q002", "sibling_text": "strengthening members providing transverse and longitudinal strength", "sibling_family": "", "via": "sibling", "answer_title": "Strengthening members & longitudinal / transverse strength", "cross_family": false }, { "answer_id": "CHK-330-004", "score": 0.4803954541683197, "sibling_score": null, "answer_score": 0.4803954541683197, "sibling_qid": "", "sibling_text": "chocking arrangement on the main engine bedplate seating seating thick top plate on longitudinal girders in the double bottom transverse floors beneath supporting chocks under the bedplate flange in way of each holding down bolt near girders and bearing saddles", "sibling_family": "", "via": "answer_title", "answer_title": "Chocking arrangement on the main engine bedplate seating", "cross_family": false } ] }, { "qid": "KOL-2025-12-1141-Q001", "text": "Type of ship ?(container) Type of engine? (Rt-flex) (Borai)", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "KOL-2025-12-1141", "tray": "review", "candidates": [ { "answer_id": "DB-TORBOX-B-003", "score": 0.6665534377098083, "sibling_score": 0.6665534377098083, "answer_score": null, "sibling_qid": "CHE-2026-04-0150-Q001", "sibling_text": "type of ship sailed container", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "What is a torsion box — definition and construction", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.6650785803794861, "sibling_score": 0.6650785803794861, "answer_score": null, "sibling_qid": "MUM-2026-05-3139-Q001", "sibling_text": "status of oral and written type of ship sailed container nomenclature of main and auxiliary engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "DBTB-A-002", "score": 0.6212674975395203, "sibling_score": 0.6212674975395203, "answer_score": null, "sibling_qid": "KOL-2025-09-1058-Q002", "sibling_text": "type of ship sailed special const in a container ship where fitted what exactly does why not in bulk carrier", "sibling_family": "", "via": "sibling", "answer_title": "Double-bottom tanks: purpose, advantages, disadvantages and stability effect", "cross_family": false } ] }, { "qid": "KOL-2025-12-1141-Q002", "text": "Heat treatment in metal? Why?", "family": "NDT & Material Testing", "subtopic": "Heat Treatment", "tid": "KOL-2025-12-1141", "tray": "review", "candidates": [ { "answer_id": "HT-A-001", "score": 0.6825435161590576, "sibling_score": 0.6825435161590576, "answer_score": 0.5397968560457229, "sibling_qid": "CHE-2026-05-0569-Q003", "sibling_text": "why cast iron and heat treatment process", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Heat treatment: what it is, the main methods, and why it is done", "cross_family": false }, { "answer_id": "HT-A-002", "score": 0.6767410635948181, "sibling_score": 0.6767410635948181, "answer_score": 0.5101993322372437, "sibling_qid": "MUM-2025-08-2378-Q001", "sibling_text": "heat treatment name them what is annealing temp how cooling is done what result why", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Annealing: process, cooling control, and the reused copper washer", "cross_family": false }, { "answer_id": "HEAT-TRT-C-001", "score": 0.6588611006736755, "sibling_score": 0.6588611006736755, "answer_score": null, "sibling_qid": "KOL-2017-08-3082-Q003", "sibling_text": "anealing tempting normalizing nitriding where done in engine room and reason for doing so", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Nitriding — process, gas and where it is used on board", "cross_family": false } ] }, { "qid": "KOL-2025-12-1142-Q001", "text": "Type Of vessel", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2025-12-1142", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8512236475944519, "sibling_score": 0.8512236475944519, "answer_score": null, "sibling_qid": "MUM-2026-06-3384-Q001", "sibling_text": "type of vessel", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.7771531939506531, "sibling_score": 0.7771531939506531, "answer_score": null, "sibling_qid": "CHE-2026-02-0481-Q001", "sibling_text": "type of vessels sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7702096700668335, "sibling_score": 0.7702096700668335, "answer_score": 0.5228903472423553, "sibling_qid": "CHE-2026-02-0109-Q001", "sibling_text": "type of ship explain what type is your vessel explain their type and difference", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "KOL-2025-12-1142-Q003", "text": "ISM and Emergency Preparedness", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "KOL-2025-12-1142", "tray": "review", "candidates": [ { "answer_id": "ISM-ELEM-005", "score": 0.7495775818824768, "sibling_score": 0.7495775818824768, "answer_score": 0.4273485779762268, "sibling_qid": "MUM-2025-08-0393-Q006", "sibling_text": "ism emergency preparedness", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Emergency preparedness (Element 8)", "cross_family": false }, { "answer_id": "ISM-DPA-004", "score": 0.5520520806312561, "sibling_score": 0.5520520806312561, "answer_score": null, "sibling_qid": "CHE-2026-05-0557-Q015", "sibling_text": "masters overriding authority and emergency preparedness internal deciding question", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Master's overriding authority and the DPA relationship (ISM chapters)", "cross_family": false }, { "answer_id": "SMSFR-002", "score": 0.5439112186431885, "sibling_score": 0.5439112186431885, "answer_score": null, "sibling_qid": "KOL-2019-12-0373-Q002", "sibling_text": "i e sms manual nd its contents 4 emergency preparedness under sms manual 5 hru in liferaft chakraborty func 3", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the Safety Management System — the SMS manual, its contents, objectives, why it is needed onboard, and the company SMS policy?", "cross_family": false } ] }, { "qid": "KOL-2025-12-1143-Q002", "text": "LRIT", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "KOL-2025-12-1143", "tray": "new", "candidates": [ { "answer_id": "EPIRB-SART-001", "score": 0.4723976254463196, "sibling_score": 0.4723976254463196, "answer_score": null, "sibling_qid": "KOL-2017-09-0112-Q004", "sibling_text": "lrit vdr epirb sart mob marker", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What is the difference between EPIRB and SART? 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Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-005", "score": 0.6336031556129456, "sibling_score": 0.6336031556129456, "answer_score": 0.3052729845046997, "sibling_qid": "KOC-2026-05-0044-Q003", "sibling_text": "bunker miss entry procedure for orb", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "A missed bunker entry — how to add it, and how that differs from correcting a wrong entry", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-002", "score": 0.6280677318572998, "sibling_score": 0.6280677318572998, "answer_score": null, "sibling_qid": "CHE-2024-10-0509-Q002", "sibling_text": "orb entries all in detail", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "The Oil Record Book Part I — purpose, the letter codes, and how entries are made", "cross_family": false } ] }, { "qid": "KOL-2025-12-1828-Q005", "text": "2 How to set boiler safety valve", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2025-12-1828", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-001", "score": 0.8083483576774597, "sibling_score": 0.8083483576774597, "answer_score": null, "sibling_qid": "CHE-2026-05-0597-Q020", "sibling_text": "boiler safety valve how the setting is done", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.7807621359825134, "sibling_score": 0.7807621359825134, "answer_score": null, "sibling_qid": "CHE-2026-05-0568-Q013", "sibling_text": "boiler safety valve how you confirm the proper setting of safety valve engineer observation", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.7772477269172668, "sibling_score": 0.7772477269172668, "answer_score": null, "sibling_qid": "KOC-2026-05-0034-Q010", "sibling_text": "boiler safety valve types and how safety valve is set complete procedures", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOL-2025-12-1828-Q007", "text": "4 Rudder crack, how to weld", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2025-12-1828", "tray": "new", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.6443933844566345, "sibling_score": 0.6443933844566345, "answer_score": null, "sibling_qid": "MUM-2026-09-3982-Q002", "sibling_text": "rudder inspection welding on rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "WBS-C-006", "score": 0.628119945526123, "sibling_score": 0.628119945526123, "answer_score": null, "sibling_qid": "KOL-2025-11-4070-Q006", "sibling_text": "rudder welding", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Propeller and rudder repair — grading the damage and the Class-approved route", "cross_family": true }, { "answer_id": "HULL-DD-001", "score": 0.6040434837341309, "sibling_score": 0.6040434837341309, "answer_score": 0.4798511207103729, "sibling_qid": "KOL-2020-11-3360-Q004", "sibling_text": "hull crack repair i told the procedure followed by welding then he asked if crack occurs in the welding again then how will you repair", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "1. Hull plate / shell-weld crack repair in drydock", "cross_family": true } ] }, { "qid": "KOL-2025-12-2029-Q007", "text": "FOUR reasons of FWG production decreased.", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "KOL-2025-12-2029", "tray": "review", "candidates": [ { "answer_id": "FWG-RO-003", "score": 0.7610679864883423, "sibling_score": 0.7610679864883423, "answer_score": 0.35961673110723497, "sibling_qid": "KOC-2026-02-1098-Q007", "sibling_text": "fwg production reduces reasons", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "The FWG is not producing enough water or its efficiency has dropped. Reasons, checks and action?", "cross_family": false }, { "answer_id": "FWG-RO-001", "score": 0.40206438302993774, "sibling_score": 0.40206438302993774, "answer_score": null, "sibling_qid": "MUM-2025-09-1197-Q006", "sibling_text": "fwg working principle did not accept low pressure evaporation and cooling", "sibling_family": "Fresh Water & Domestic Systems", "via": "sibling", "answer_title": "How is vacuum created in the FWG, why does it run under vacuum, and what if the vacuum will not come?", "cross_family": true }, { "answer_id": "AIRCOMP-PERF-003", "score": 0.3928585946559906, "sibling_score": 0.3928585946559906, "answer_score": null, "sibling_qid": "KOL-2021-01-3373-Q004", "sibling_text": "compressor capacity reduced drastically reason nd action", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Why does the main air compressor take more time to fill the air bottle, or why is its capacity reduced?", "cross_family": true } ] }, { "qid": "KOL-2025-12-2030-Q001", "text": "Int- Type of vessel sailed on Type of main engine", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "KOL-2025-12-2030", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8146065473556519, "sibling_score": 0.8146065473556519, "answer_score": null, "sibling_qid": "CHE-2026-03-0255-Q001", "sibling_text": "type of vessel and engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.7987913489341736, "sibling_score": 0.7987913489341736, "answer_score": null, "sibling_qid": "MUM-2026-07-3668-Q004", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.5034498810768128, "sibling_score": null, "answer_score": 0.5034498810768128, "sibling_qid": "", "sibling_text": "constructional and operational differences between main and auxiliary engine conventional direct drive case main engine usually a large slow speed 2 stroke crosshead auxiliary usually a medium speed 4 stroke trunk piston four stroke mains and diesel electric plants also exist main engine coupled to the propeller reversible or cpp for astern auxiliary drives an alternator at constant governed speed", "sibling_family": "", "via": "answer_title", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false } ] }, { "qid": "KOL-2025-12-2030-Q004", "text": "Turndown Ratio in boiler and xx", "family": "Boilers - Operations & Firing", "subtopic": "Burner Type (Rotary Cup / Pressure Jet)", "tid": "KOL-2025-12-2030", "tray": "review", "candidates": [ { "answer_id": "BURNER-TYPE-001", "score": 0.7302863001823425, "sibling_score": 0.7302863001823425, "answer_score": 0.5740054070949554, "sibling_qid": "KOC-2024-03-2043-Q005", "sibling_text": "turndown ratio of boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler burner turn-down ratio", "cross_family": false }, { "answer_id": "TDR-584-001", "score": 0.7300506830215454, "sibling_score": 0.7300506830215454, "answer_score": 0.5142082691192627, "sibling_qid": "KOL-2023-10-1761-Q003", "sibling_text": "turndown ratio of boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "What is the turndown ratio of a marine boiler? Explain.", "cross_family": false }, { "answer_id": "BFS-257-004", "score": 0.5332529485225678, "sibling_score": null, "answer_score": 0.5332529485225678, "sibling_qid": "", "sibling_text": "boiler burner turn down ratio turn down maximum firing rate minimum firing rate with a stable well atomised flame wide turn down follows low demand without on off cycling narrow turn down cycles", "sibling_family": "", "via": "answer_title", "answer_title": "Boiler burner turn-down ratio", "cross_family": false } ] }, { "qid": "KOL-2025-12-2934-Q002", "text": "Exi(a) and exi(b) difference, What protects exi(a) and exi(b) ?", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOL-2025-12-2934", "tray": "new", "candidates": [ { "answer_id": "EECS-002", "score": 0.5003060102462769, "sibling_score": 0.5003060102462769, "answer_score": null, "sibling_qid": "CHE-2026-09-3904-Q002", "sibling_text": "eexi and cii only difference", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "02. Differentiate EEXI and CII", "cross_family": false }, { "answer_id": "EXD-EXI-A-001", "score": 0.47052156925201416, "sibling_score": 0.47052156925201416, "answer_score": 0.28871332108974457, "sibling_qid": "KOC-2023-03-1241-Q002", "sibling_text": "exd and exi explain application of both", "sibling_family": "", "via": "sibling", "answer_title": "Ex i (intrinsically safe) vs Ex d (flameproof / explosion-proof) — the difference", "cross_family": false }, { "answer_id": "HAZ-EX-B-001", "score": 0.4370795786380768, "sibling_score": 0.4370795786380768, "answer_score": null, "sibling_qid": "KOL-2018-04-2190-Q004", "sibling_text": "intrinsically safe circuit what is the difference between e x i a and e x i b", "sibling_family": "", "via": "sibling", "answer_title": "Intrinsically safe (Ex i) equipment — what it is, how it works, where it is used, how you identify it", "cross_family": false } ] }, { "qid": "KOL-2025-12-2934-Q003", "text": "How to test diode in Resistance?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Zener / Diode / Rectifier", "tid": "KOL-2025-12-2934", "tray": "review", "candidates": [ { "answer_id": "EPC-P01-02", "score": 0.6853199601173401, "sibling_score": 0.6853199601173401, "answer_score": null, "sibling_qid": "CHE-2026-05-0627-Q008", "sibling_text": "diode testing", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Types of diodes, and where diodes are used on board", "cross_family": false }, { "answer_id": "EPC-P01-01", "score": 0.6401470303535461, "sibling_score": 0.6401470303535461, "answer_score": null, "sibling_qid": "MUM-2023-08-1398-Q012", "sibling_text": "what is diode and what is resistance in diode", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a diode? Symbol, forward and reverse bias, and the characteristic curve", "cross_family": false }, { "answer_id": "GMCM-583-A-006", "score": 0.6367666721343994, "sibling_score": 0.6367666721343994, "answer_score": 0.517779266834259, "sibling_qid": "KOC-2025-11-1652-Q001", "sibling_text": "how to test diodes and transistors using a multimeter", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "06. Testing diodes and transistors with a multimeter", "cross_family": false } ] }, { "qid": "KOL-2025-12-2934-Q004", "text": "Turbocharger rpm or Main engine RPM working Principle ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Encoders", "tid": "KOL-2025-12-2934", "tray": "review", "candidates": [ { "answer_id": "EPC-P03-006", "score": 0.7280574440956116, "sibling_score": 0.7280574440956116, "answer_score": null, "sibling_qid": "KOL-2026-05-4089-Q009", "sibling_text": "how rpm indicator of turbocharger tachometer working principle", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "How does a tachometer work — working principle and location — and what is a tacho-generator?", "cross_family": false }, { "answer_id": "TCS-059-P04-011", "score": 0.6763007044792175, "sibling_score": 0.6763007044792175, "answer_score": null, "sibling_qid": "MUM-2026-05-3330-Q005", "sibling_text": "how the me turbocharger rpm is measured", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharger speed (rpm) measurement", "cross_family": true }, { "answer_id": "TURBO-CS-P03-012", "score": 0.6664479374885559, "sibling_score": 0.6664479374885559, "answer_score": 0.545584300160408, "sibling_qid": "KOL-2022-06-1689-Q002", "sibling_text": "matching of turbocharger", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharger matching with the engine", "cross_family": true } ] }, { "qid": "KOL-2025-12-2939-Q001", "text": "Cargo tanks which type of Intrinsic safe equipment ( Exi a and Exi b) ?", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOL-2025-12-2939", "tray": "new", "candidates": [ { "answer_id": "HAZ-EX-B-001", "score": 0.6059308052062988, "sibling_score": 0.6059308052062988, "answer_score": 0.4709097445011139, "sibling_qid": "KOL-2025-06-2788-Q005", "sibling_text": "non intrinsically safe equipments used on tankers", "sibling_family": "", "via": "sibling", "answer_title": "Intrinsically safe (Ex i) equipment — what it is, how it works, where it is used, how you identify it", "cross_family": false }, { "answer_id": "TNK-SAFE-BF26-002", "score": 0.6031680107116699, "sibling_score": 0.6031680107116699, "answer_score": null, "sibling_qid": "MUM-2023-09-1400-Q003", "sibling_text": "electrical safeties installed inside cargo tank", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What safeties are provided on the cargo tanks of an oil, crude or chemical tanker?", "cross_family": false }, { "answer_id": "EXD-EXI-A-001", "score": 0.5691520571708679, "sibling_score": 0.5691520571708679, "answer_score": null, "sibling_qid": "KOC-2026-08-2144-Q005", "sibling_text": "exi and exd equipment", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Ex i (intrinsically safe) vs Ex d (flameproof / explosion-proof) — the difference", "cross_family": false } ] }, { "qid": "KOL-2025-12-2939-Q004", "text": "Why proportional control cannot eliminate offset .", "family": "", "subtopic": "", "tid": "KOL-2025-12-2939", "tray": "review", "candidates": [ { "answer_id": "CTRL-TL-003", "score": 0.721753716468811, "sibling_score": 0.721753716468811, "answer_score": 0.39728854298591615, "sibling_qid": "KOL-2025-10-2887-Q005", "sibling_text": "proportional control offset why", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Feedback, open/closed loop, offset, hysteresis, P-I-D action", "cross_family": false }, { "answer_id": "CTRL-001", "score": 0.6680265069007874, "sibling_score": 0.6680265069007874, "answer_score": null, "sibling_qid": "KOL-2024-02-2696-Q005", "sibling_text": "cascade control system why there is offset in proportional controller", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Cascade control — how it works", "cross_family": false }, { "answer_id": "AUC-CTL-01", "score": 0.5449187785387039, "sibling_score": null, "answer_score": 0.5449187785387039, "sibling_qid": "", "sibling_text": "choosing p pi or pid control p alone leaves an offset proportional to the load change steady state error is inherent to pure proportional action integral reset eliminates offset but slows response and can wind up on prolonged saturation", "sibling_family": "", "via": "answer_title", "answer_title": "Choosing P, PI or PID control", "cross_family": false } ] }, { "qid": "KOL-2025-12-2939-Q004S2", "text": "What is microcontroller and impedance circuit on microcontroller.", "family": "", "subtopic": "", "tid": "KOL-2025-12-2939", "tray": "new", "candidates": [ { "answer_id": "EPC-P02-08", "score": 0.5575844049453735, "sibling_score": 0.5575844049453735, "answer_score": 0.4747242331504822, "sibling_qid": "KOL-2025-08-2822-Q003", "sibling_text": "what is microcontroller", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a microcontroller — parts and applications?", "cross_family": false }, { "answer_id": "TC-A-010", "score": 0.5030109286308289, "sibling_score": 0.5030109286308289, "answer_score": 0.40305397361516954, "sibling_qid": "KOC-2026-02-1716-Q010", "sibling_text": "impedance of rc circuit", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Impedance and the RC circuit — finding Xc and XL", "cross_family": false }, { "answer_id": "AVR-EXC-H-001", "score": 0.4932518005371094, "sibling_score": 0.4932518005371094, "answer_score": null, "sibling_qid": "KOL-2026-05-0017-Q005", "sibling_text": "what are the parts in the circuit of modern avr", "sibling_family": "", "via": "sibling", "answer_title": "AVR — location, components and fault checks", "cross_family": false } ] }, { "qid": "KOL-2025-12-2941-Q001", "text": "Draw and explain Brushless Alternator?", "family": "Electrical - Generator & Alternator", "subtopic": "Brushless Alternator", "tid": "KOL-2025-12-2941", "tray": "review", "candidates": [ { "answer_id": "BRUSHALT-A-001", "score": 0.7668686509132385, "sibling_score": 0.7668686509132385, "answer_score": 0.5668129503726959, "sibling_qid": "MUM-2026-05-3167-Q010", "sibling_text": "brushless alternator explain", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01 · Working principle of the brushless alternator / brushless excitation systemHigh", "cross_family": false }, { "answer_id": "BL-ALT-C-001", "score": 0.7258471846580505, "sibling_score": 0.7258471846580505, "answer_score": null, "sibling_qid": "KOL-2021-03-2432-Q002", "sibling_text": "brushless alternator only tell electrical advantage", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Electrical advantages of brushless excitation over brushed / static", "cross_family": false }, { "answer_id": "BL-ALT-C-002", "score": 0.5591058492660522, "sibling_score": null, "answer_score": 0.5591058492660522, "sibling_qid": "", "sibling_text": "how to identify onboard that an alternator is brushless open the exciter non drive end cover no brushes no brush boxes or springs no slip rings no carbon dust brushless defining proof no slip rings on the main rotor a visible shaft mounted rotating rectifier diode wheel plus surge suppressor", "sibling_family": "", "via": "answer_title", "answer_title": "How to identify onboard that an alternator is brushless", "cross_family": false } ] }, { "qid": "KOL-2025-12-2941-Q004", "text": "How star and delta connected in motor terminal ?", "family": "Electrical - Generator & Alternator", "subtopic": "Star or Delta Connection", "tid": "KOL-2025-12-2941", "tray": "review", "candidates": [ { "answer_id": "SDC-001", "score": 0.7700690627098083, "sibling_score": 0.7700690627098083, "answer_score": 0.5793860197067261, "sibling_qid": "MUM-2024-07-1444-Q008", "sibling_text": "for a small motor needs to connected in star delta how are where the connections are made", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Why is the alternator star connected and the motor delta connected?", "cross_family": false }, { "answer_id": "SDC-002", "score": 0.7340282797813416, "sibling_score": 0.7340282797813416, "answer_score": 0.6317849040031432, "sibling_qid": "KOC-2024-10-1417-Q009", "sibling_text": "how u identify star connection by looking at motor terminal box", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "How do you identify star or delta at the terminal box, and why the terminal counts?", "cross_family": false }, { "answer_id": "SDST-A-001", "score": 0.7234662175178528, "sibling_score": 0.7234662175178528, "answer_score": null, "sibling_qid": "MUM-2026-07-3704-Q016", "sibling_text": "star delta connection", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false } ] }, { "qid": "KOL-2025-12-3894-Q004", "text": "boiler gauge glass oil", "family": "Boilers - Operations & Firing", "subtopic": "Scum / Blow Down", "tid": "KOL-2025-12-3894", "tray": "review", "candidates": [ { "answer_id": "SBD-001", "score": 0.8379564881324768, "sibling_score": 0.8379564881324768, "answer_score": 0.5670436739921569, "sibling_qid": "KOL-2026-05-4242-Q002", "sibling_text": "boiler gauge glass oil actions as 2e", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "You find oil in the boiler gauge glass — causes, how you identify the source, and your actions as 2/E (including if manoeuvring). What is carryover?", "cross_family": false }, { "answer_id": "BLR-GG-003", "score": 0.5536247193813324, "sibling_score": null, "answer_score": 0.5536247193813324, "sibling_qid": "", "sibling_text": "what are the types parts material and indication features of a boiler gauge glass tubular round glass lower pressure auxiliary boilers read the meniscus directly pressure band representative maker standard dependent flat plate glass for higher pressure reflex and through vision transparent types band representative", "sibling_family": "", "via": "answer_title", "answer_title": "What are the types, parts, material and indication features of a boiler gauge glass?", "cross_family": false }, { "answer_id": "BLR-GG-005", "score": 0.5453628987073899, "sibling_score": null, "answer_score": 0.5453628987073899, "sibling_qid": "", "sibling_text": "what checks are made on a gauge glass during boiler survey glass erosion etching cracks clarity renew if doubtful don t pass a marginal glass cocks steam water drain free full bore not choked prove by blow through", "sibling_family": "", "via": "answer_title", "answer_title": "What checks are made on a gauge glass during boiler survey?", "cross_family": false } ] }, { "qid": "KOL-2025-12-3895-Q004", "text": "What records are required.", "family": "Shipboard Records", "subtopic": "Records Required Onboard", "tid": "KOL-2025-12-3895", "tray": "new", "candidates": [ { "answer_id": "AVICERT-001", "score": 0.5358654260635376, "sibling_score": 0.5358654260635376, "answer_score": null, "sibling_qid": "MUM-2026-03-0843-Q006", "sibling_text": "which records to maintain under annex 6", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What certificates and documents are required to be carried on board under MARPOL Annex VI?", "cross_family": true }, { "answer_id": "VOC-MGT-004", "score": 0.519286036491394, "sibling_score": 0.519286036491394, "answer_score": null, "sibling_qid": "KOC-2025-10-0670-Q016", "sibling_text": "voc records and plan", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "The VOC management plan - contents, records and documents", "cross_family": true }, { "answer_id": "AIRP-188-005", "score": 0.5082802772521973, "sibling_score": 0.5082802772521973, "answer_score": null, "sibling_qid": "KOL-2025-09-1092-Q002", "sibling_text": "ods record book what all entries", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "ODS Record Book and the IAPP equipment list — what and where?", "cross_family": true } ] }, { "qid": "KOL-2025-12-3895-Q007", "text": "What is an unplanned survey. Why is it required.", "family": "Surveys - Statutory", "subtopic": "Defects on Board / Class Action", "tid": "KOL-2025-12-3895", "tray": "new", "candidates": [ { "answer_id": "CSAS-SURV-004", "score": 0.49571406841278076, "sibling_score": 0.49571406841278076, "answer_score": null, "sibling_qid": "KOC-2025-03-0571-Q009", "sibling_text": "why additional survey is carried out", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Annual vs intermediate vs periodical vs additional survey", "cross_family": true }, { "answer_id": "HSSC-002", "score": 0.49277544021606445, "sibling_score": 0.49277544021606445, "answer_score": null, "sibling_qid": "CHE-2026-05-0623-Q011", "sibling_text": "what is initial annual periodical and intermediate survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What are the initial, annual, periodical and intermediate surveys under HSSC, which surveys are NOT included, and which conventions does the harmonised system cover?", "cross_family": false }, { "answer_id": "SURV-GEN-004", "score": 0.48421287536621094, "sibling_score": 0.48421287536621094, "answer_score": 0.4245701670646667, "sibling_qid": "KOL-2020-09-0426-Q004", "sibling_text": "additinal survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Additional / non-periodical survey", "cross_family": false } ] }, { "qid": "KOL-2025-12-3896-Q001", "text": "Hatch cover pin is bend, why and how to rectify?", "family": "", "subtopic": "Hatch Coaming", "tid": "KOL-2025-12-3896", "tray": "new", "candidates": [ { "answer_id": "EFP-B-002", "score": 0.5046442747116089, "sibling_score": 0.5046442747116089, "answer_score": null, "sibling_qid": "KOC-2024-12-1886-Q008", "sibling_text": "emg fire pp shaft bend how will you rectify onboard", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Emergency fire pump defect & failure to deliver — your action", "cross_family": false }, { "answer_id": "HATCH-CVR-001", "score": 0.49579188227653503, "sibling_score": 0.49579188227653503, "answer_score": null, "sibling_qid": "KOL-2024-08-0851-Q003", "sibling_text": "why hatch cover if forward hold has more strength and how it is made string than other hatch covers", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "What are the structural strengthening arrangements used in hatch covers — and why is the No.1 hatch cover the strongest?", "cross_family": false }, { "answer_id": "CRPIN-CHK-P01-001", "score": 0.4831675589084625, "sibling_score": 0.4831675589084625, "answer_score": null, "sibling_qid": "KOL-2021-07-3417-Q001", "sibling_text": "crank pin ovality how to find out bent pin", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankpin ovality — how it is measured and at what positions", "cross_family": false } ] }, { "qid": "KOL-2025-12-3897-Q005", "text": "As a second engineer your ships hull is damaged how to report", "family": "Surveys - Statutory", "subtopic": "Defects on Board / Class Action", "tid": "KOL-2025-12-3897", "tray": "review", "candidates": [ { "answer_id": "ISM-AUD-P03-003", "score": 0.6879701018333435, "sibling_score": 0.6879701018333435, "answer_score": null, "sibling_qid": "MUM-2026-03-0853-Q005", "sibling_text": "hull damage has taken place how will you report to your company following sms", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "Non-conformity, major non-conformity and incident reporting under SMS", "cross_family": true }, { "answer_id": "HULL-DD-006", "score": 0.6870599985122681, "sibling_score": 0.6870599985122681, "answer_score": 0.5662329494953156, "sibling_qid": "CHE-2025-07-0404-Q003", "sibling_text": "dent on your ship how to report to office", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "7. Hull damage / collision / dent reporting and shell-plating designation", "cross_family": true }, { "answer_id": "HULL-DD-003", "score": 0.6753486394882202, "sibling_score": 0.6753486394882202, "answer_score": 0.49611434936523435, "sibling_qid": "KOC-2021-05-1755-Q011", "sibling_text": "hull breach and what actions taken to report to company", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "3. Side-shell hole or hull breach at the waterline: emergency action and repair", "cross_family": true } ] }, { "qid": "KOL-2025-12-4072-Q006", "text": "Lifeboat survey as a 2nd engineer", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Lifeboat", "tid": "KOL-2025-12-4072", "tray": "review", "candidates": [ { "answer_id": "LB-SURV-C-002", "score": 0.7913288474082947, "sibling_score": 0.7913288474082947, "answer_score": 0.5343872129917144, "sibling_qid": "KOL-2020-07-0416-Q003", "sibling_text": "lifeboat survey preparation as second engineer", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Preparing the lifeboat and its engine for survey as 2/E", "cross_family": false }, { "answer_id": "LB-SURV-C-001", "score": 0.7797103524208069, "sibling_score": 0.7797103524208069, "answer_score": 0.5018098890781403, "sibling_qid": "KOL-2023-05-0744-Q004", "sibling_text": "life boat survey as 2nd engineer 5", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Annual thorough examination / SEQ survey of the lifeboat — scope, by whom, certificate", "cross_family": false }, { "answer_id": "LB-SURV-C-011", "score": 0.696150004863739, "sibling_score": 0.696150004863739, "answer_score": null, "sibling_qid": "KOL-2018-08-0212-Q004", "sibling_text": "enclosed lifeboat checks during survey", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Enclosed lifeboat — survey checks and type distinctions", "cross_family": false } ] }, { "qid": "KOL-2025-12-4073-Q003", "text": "What is Additional survey, what is condition of class What is difference between survey and audit, if there is a hull breach what will be the procedure and action.", "family": "Surveys - Statutory", "subtopic": "Audit vs Survey", "tid": "KOL-2025-12-4073", "tray": "new", "candidates": [ { "answer_id": "SURV-GEN-001", "score": 0.6113453507423401, "sibling_score": 0.6113453507423401, "answer_score": null, "sibling_qid": "MUM-2026-06-3621-Q013", "sibling_text": "hull survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What statutory surveys are carried out on board?", "cross_family": false }, { "answer_id": "SURV-GEN-003", "score": 0.5902741551399231, "sibling_score": 0.5902741551399231, "answer_score": null, "sibling_qid": "KOL-2024-08-0856-Q004", "sibling_text": "special survey of ship", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Annual, renewal, intermediate and special surveys", "cross_family": false }, { "answer_id": "ESP-B-001", "score": 0.5788077712059021, "sibling_score": 0.5788077712059021, "answer_score": null, "sibling_qid": "KOL-2022-11-0703-Q003", "sibling_text": "enhanced survey program why to do when to do on which type of ship and what to check in this survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "How an ESP survey is carried out — conduct, engine-room preparation & 2/E duties", "cross_family": false } ] }, { "qid": "KOL-2025-12-4073-Q007", "text": "Checks done in chain locker", "family": "Auxiliary Equipment", "subtopic": "Chain Locker Entry", "tid": "KOL-2025-12-4073", "tray": "review", "candidates": [ { "answer_id": "CHAIN-TENS-A-004", "score": 0.6797530055046082, "sibling_score": 0.6797530055046082, "answer_score": 0.42579932510852814, "sibling_qid": "MUM-2026-07-3842-Q005", "sibling_text": "chain locker inspection what all checks", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Chain-Case / Chain-Drive Inspection", "cross_family": false }, { "answer_id": "ANCHR-B-002", "score": 0.6732154488563538, "sibling_score": 0.6732154488563538, "answer_score": null, "sibling_qid": "MUM-2026-05-3235-Q007", "sibling_text": "checks on anchor chain", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Anchor & cable survey in dry dock — the systematic inspection", "cross_family": false }, { "answer_id": "ANCHR-B-004", "score": 0.6427902579307556, "sibling_score": 0.6427902579307556, "answer_score": null, "sibling_qid": "KOC-2026-04-0906-Q008", "sibling_text": "regulations regarding chain locker", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Chain locker, spurling pipe & bitter-end securing", "cross_family": false } ] }, { "qid": "KOL-2025-12-4075-Q002", "text": "Centrifugal pump voltage reduced by 10 percent what will be effect on heat generation and discharge", "family": "Pumps - Centrifugal & PD", "subtopic": "Centrifugal Pump", "tid": "KOL-2025-12-4075", "tray": "new", "candidates": [ { "answer_id": "PCD-P01-06", "score": 0.6302343606948853, "sibling_score": 0.6302343606948853, "answer_score": 0.43258697688579556, "sibling_qid": "KOC-2026-03-2017-Q008", "sibling_text": "centrifugal pump efficiency reduced reasons internal no questions", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Centrifugal pump — reasons for performance drop, low efficiency, vibration, and still-poor-after-overhaul", "cross_family": false }, { "answer_id": "MNS-018", "score": 0.5753428936004639, "sibling_score": 0.5753428936004639, "answer_score": 0.43796743750572203, "sibling_qid": "KOC-2024-08-1388-Q004", "sibling_text": "reduced voltage effect on motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "The effect of reduced voltage on a motor", "cross_family": true }, { "answer_id": "IM-TRQ-P02-001", "score": 0.5694809556007385, "sibling_score": 0.5694809556007385, "answer_score": null, "sibling_qid": "KOL-2022-07-2587-Q001", "sibling_text": "induction motor 10 percent volt reduction what will b be torque 19 percent reduction", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Factors affecting torque; conditions for maximum torque", "cross_family": true } ] }, { "qid": "KOL-2025-12-4075-Q007", "text": "how plasma coating is done,which has and electrode Mep Black spot and inflation in bottom end bearing reason Web slip between 5 and 6 unit , effect,how to correct? Engine bracing function and testing While taking draw card it's found that pmax and p comp is ok but exhaust is abnormal, reasons for same Rocking test procedure,how many positions,value Some more don't remember will update", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "KOL-2025-12-4075", "tray": "review", "candidates": [ { "answer_id": "PIST-CSI-C-001", "score": 0.7249971032142639, "sibling_score": 0.7249971032142639, "answer_score": 0.5054278522729874, "sibling_qid": "KOL-2018-02-1354-Q007", "sibling_text": "reconditioning of piston after severe pitting how it s done i said plasma coating he wanted to know complete sequence", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston crown damage — pitting, burning, cracks and reconditioning", "cross_family": false }, { "answer_id": "PRING-B-003", "score": 0.6803396940231323, "sibling_score": 0.6803396940231323, "answer_score": null, "sibling_qid": "KOL-2022-03-1665-Q001", "sibling_text": "piston ring coating plasma coating", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Material, coating & manufacture", "cross_family": false }, { "answer_id": "PRING-CLR-A-002", "score": 0.6560378670692444, "sibling_score": 0.6560378670692444, "answer_score": null, "sibling_qid": "KOL-2020-09-3346-Q002", "sibling_text": "piston ring calibration and checks after me decarb", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston-ring clearances and calibration — butt, axial, radial, wear limits", "cross_family": false } ] }, { "qid": "KOL-2025-12-4076-Q008", "text": "Cast iron welding and electrodes ?", "family": "Workshop & Welding", "subtopic": "Cast Iron Welding", "tid": "KOL-2025-12-4076", "tray": "review", "candidates": [ { "answer_id": "WELD-B-001", "score": 0.8169016242027283, "sibling_score": 0.8169016242027283, "answer_score": 0.49988329112529756, "sibling_qid": "MUM-2026-06-3641-Q001", "sibling_text": "cast iron welding which electrode", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding & crack-repair of aluminium and cast iron, including metal stitching", "cross_family": false }, { "answer_id": "LH-ELEC-003", "score": 0.5318972826004028, "sibling_score": null, "answer_score": 0.5318972826004028, "sibling_qid": "", "sibling_text": "3 how do you select or order the correct welding electrode or rod match to base material and strength first mild steel high tensile stainless cast iron this fixes the electrode family then coating type for the duty rutile e g e6013 general basic low hydrogen e7018 crack sensitive or high tensile", "sibling_family": "", "via": "answer_title", "answer_title": "3. How do you select or order the correct welding electrode or rod?", "cross_family": false }, { "answer_id": "WELD-B-006", "score": 0.526521635055542, "sibling_score": null, "answer_score": 0.526521635055542, "sibling_qid": "", "sibling_text": "welding electrodes selection storage and handling selection match electrode to parent metal to welding position to available current type ac dc and size to plate thickness low hydrogen basic coated electrodes are moisture sensitive absorbed moisture becomes hydrogen in the arc causes porosity and hydrogen cold cracking", "sibling_family": "", "via": "answer_title", "answer_title": "Welding electrodes — selection, storage and handling", "cross_family": false } ] }, { "qid": "KOL-2025-12-4078-Q001", "text": "12.2025 Internal: Chaki sir External: Rajeev wad sir Status of function Written and oral Type of ship.", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2025-12-4078", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.6511034369468689, "sibling_score": 0.6511034369468689, "answer_score": null, "sibling_qid": "KOC-2026-08-2106-Q001", "sibling_text": "status of written oral company type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.5821481943130493, "sibling_score": 0.5821481943130493, "answer_score": null, "sibling_qid": "MUM-2026-05-3139-Q001", "sibling_text": "status of oral and written type of ship sailed container nomenclature of main and auxiliary engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.5239609479904175, "sibling_score": 0.5239609479904175, "answer_score": null, "sibling_qid": "MUM-2026-06-3459-Q001", "sibling_text": "type of ship sail and status of other function", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false } ] }, { "qid": "KOL-2025-12-4078-Q008", "text": "What is frictionless transmission.", "family": "General Marine Engineering", "subtopic": "Shafting / Propeller / CPP", "tid": "KOL-2025-12-4078", "tray": "new", "candidates": [ { "answer_id": "LM-SULZER-002", "score": 0.5055583715438843, "sibling_score": 0.5055583715438843, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q002", "sibling_text": "lost motion clutch explanation", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Draw and explain the lost-motion clutch arrangement and its servomotor", "cross_family": true }, { "answer_id": "RGEAR-002", "score": 0.5052285194396973, "sibling_score": 0.5052285194396973, "answer_score": null, "sibling_qid": "KOL-2018-04-3134-Q003", "sibling_text": "flexible coupling where used in engine room in hydrophore p p peculiarity as it cuts in cuts of fluctuating torque", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Flexible coupling — types, working, and where it is used in the engine room", "cross_family": false }, { "answer_id": "LM-SULZER-001", "score": 0.49260133504867554, "sibling_score": 0.49260133504867554, "answer_score": null, "sibling_qid": "MUM-2022-11-0945-Q007", "sibling_text": "lost motion clutch", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "What is lost motion / the lost-motion clutch in Sulzer reversing gear?", "cross_family": true } ] }, { "qid": "KOL-2026-01-1153-Q003", "text": "LRIT. Equipment under LRIT.", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "KOL-2026-01-1153", "tray": "new", "candidates": [ { "answer_id": "ETA-567-002", "score": 0.4870694875717163, "sibling_score": 0.4870694875717163, "answer_score": null, "sibling_qid": "CHE-2025-12-0328-Q006", "sibling_text": "equipments in eta", "sibling_family": "", "via": "sibling", "answer_title": "Emergency towing arrangement — equipment and contents", "cross_family": false }, { "answer_id": "GAM-439-001", "score": 0.4623711407184601, "sibling_score": 0.4623711407184601, "answer_score": null, "sibling_qid": "MUM-2024-10-0215-Q005", "sibling_text": "equipments of eta", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Aft emergency towing arrangement (ETA) — equipment and requirements", "cross_family": true }, { "answer_id": "SEW-DISCH-004", "score": 0.4574735462665558, "sibling_score": 0.4574735462665558, "answer_score": null, "sibling_qid": "MUM-2023-08-0120-Q002", "sibling_text": "annex iv different types of equipment", "sibling_family": "MARPOL - Annex IV (Sewage)", "via": "sibling", "answer_title": "4. Annex IV requirements, equipment, documents and recent amendments", "cross_family": true } ] }, { "qid": "KOL-2026-01-1154-Q005", "text": "What is use for dense fog? How it works?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "EPIRB / SART", "tid": "KOL-2026-01-1154", "tray": "new", "candidates": [ { "answer_id": "FOAM-032-P03-002", "score": 0.4150337278842926, "sibling_score": 0.4150337278842926, "answer_score": null, "sibling_qid": "KOL-2025-08-1018-Q007", "sibling_text": "high density foam settles down on oil displaces air he told not exactly in high expansion foam foam density is less then how still we fight fire one more property is there i told i don t know sir then he told its effervescence", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "High-expansion foam generator / nozzle arrangement — draw and explain", "cross_family": true }, { "answer_id": "FIRE-P02-04", "score": 0.39397740364074707, "sibling_score": 0.39397740364074707, "answer_score": 0.32163842767477036, "sibling_qid": "KOL-2017-03-0071-Q002", "sibling_text": "water mist and co2 lot of cross questioning", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist vs sprinkler and CO₂ — comparison and coexistence", "cross_family": true }, { "answer_id": "FIRE-P01-03", "score": 0.38333290815353394, "sibling_score": 0.38333290815353394, "answer_score": 0.324208964407444, "sibling_qid": "CHE-2026-04-0506-Q001S2", "sibling_text": "hifog and hyper mist difference", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist — how the mist is formed and how it extinguishes fire", "cross_family": true } ] }, { "qid": "KOL-2026-01-1155-Q003", "text": "What is IACS and its role in shipbuilding", "family": "Surveys - Statutory", "subtopic": "PSC / Flag / RO / CIC / MoU", "tid": "KOL-2026-01-1155", "tray": "new", "candidates": [ { "answer_id": "IACS-324-001", "score": 0.5727037787437439, "sibling_score": 0.5727037787437439, "answer_score": 0.3777452543377876, "sibling_qid": "KOL-2023-03-0724-Q002", "sibling_text": "what is iacs and it s function in maritime industry", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "1. What is IACS and what are its functions?", "cross_family": false }, { "answer_id": "IACS-324-002", "score": 0.42259135842323303, "sibling_score": 0.42259135842323303, "answer_score": null, "sibling_qid": "KOC-2023-05-0192-Q004", "sibling_text": "y ship need to be classed classification society functions", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "2. What is a classification society, why does a ship need class, and what are its functions?", "cross_family": false }, { "answer_id": "AUDIT-IE-002", "score": 0.4159277677536011, "sibling_score": 0.4159277677536011, "answer_score": null, "sibling_qid": "MUM-2024-08-1457-Q011", "sibling_text": "audit on ship realted to ism", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "As Second Engineer, preparing for and handling an internal audit on board", "cross_family": false } ] }, { "qid": "KOL-2026-01-1158-Q005", "text": "2 main documents of mlc", "family": "MLC", "subtopic": "MLC / DMLC / Work-Rest", "tid": "KOL-2026-01-1158", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.577105700969696, "sibling_score": 0.577105700969696, "answer_score": 0.3108075141906738, "sibling_qid": "KOC-2026-05-2135-Q011", "sibling_text": "mlc titles explain title 1 explain dmlc part 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "MEB-MEC-P03-001", "score": 0.28955831974744795, "sibling_score": null, "answer_score": 0.28955831974744795, "sibling_qid": "", "sibling_text": "me b vs me c the core difference", "sibling_family": "", "via": "answer_title", "answer_title": "ME-B vs ME-C — the core difference", "cross_family": false }, { "answer_id": "MLC-WRH-B-006", "score": 0.28890488147735593, "sibling_score": null, "answer_score": 0.28890488147735593, "sibling_qid": "", "sibling_text": "mlc certificates and the documents carried on board maritime labour certificate issued by the flag or an authorised ro validity not exceeding 5 years intermediate inspection between the second and third anniversary dates where only one is carried out on a 5 year certificate declaration of maritime labour compliance parts i and ii attached to the certificate", "sibling_family": "", "via": "answer_title", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false } ] }, { "qid": "KOL-2026-01-1160-Q005", "text": "Types of ship sailed", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2026-01-1160", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8295608758926392, "sibling_score": 0.8295608758926392, "answer_score": null, "sibling_qid": "CHE-2026-09-3938-Q001", "sibling_text": "types of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.79740971326828, "sibling_score": 0.79740971326828, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7830531597137451, "sibling_score": 0.7830531597137451, "answer_score": null, "sibling_qid": "CHE-2026-03-0253-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "KOL-2026-01-1161-Q001", "text": "Status of mep written, in how much attempt pass, mep oral which attempt", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOL-2026-01-1161", "tray": "new", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.53851717710495, "sibling_score": 0.53851717710495, "answer_score": null, "sibling_qid": "MUM-2026-01-1252-Q001", "sibling_text": "status of results oral written exam", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": false }, { "answer_id": "NDT-METH-P01-001", "score": 0.4726322293281555, "sibling_score": 0.4726322293281555, "answer_score": null, "sibling_qid": "MUM-2026-03-2946-Q006", "sibling_text": "the best thing you can do is figure out which exams you can appear for whether single subjects pairs or all together it depends on your will and capability for me i appeared in pairs 2 writtens and 1 oral because i knew my capability it differs for everyone many attempt all 6 together as per my knowledge few pass all 6 some pass 4 5 some pass 1 3 and some failed all", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "NDT methods, NDT vs destructive testing, and onboard use", "cross_family": false }, { "answer_id": "STAB-SD-C-002", "score": 0.44890880584716797, "sibling_score": 0.44890880584716797, "answer_score": null, "sibling_qid": "MUM-2026-03-2946-Q028", "sibling_text": "i failed too but i accepted my mistakes i worked on my mistakes and cleared almost everything in 7 months without any classes all i did was self study", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "Static stability — what it is and what it quantifies", "cross_family": false } ] }, { "qid": "KOL-2026-01-1161-Q002", "text": "How much attempt for safety written", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOL-2026-01-1161", "tray": "new", "candidates": [ { "answer_id": "HV-SYS-P05-001", "score": 0.450204074382782, "sibling_score": 0.450204074382782, "answer_score": null, "sibling_qid": "KOL-2021-02-2423-Q003", "sibling_text": "hv additional safeties", "sibling_family": "", "via": "sibling", "answer_title": "HV switchboard (MSB): safeties, interlocks and protective features", "cross_family": false }, { "answer_id": "TNK-SAFE-BF26-003", "score": 0.44163742661476135, "sibling_score": 0.44163742661476135, "answer_score": null, "sibling_qid": "KOC-2022-11-1210-Q011", "sibling_text": "safeties on deck", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What safeties, including electrical safeties and Ex ratings, are provided on the deck of a tanker?", "cross_family": true }, { "answer_id": "IGAT-583-001", "score": 0.43764209747314453, "sibling_score": 0.43764209747314453, "answer_score": null, "sibling_qid": "KOL-2017-03-0078-Q002", "sibling_text": "i g safeties", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "State all the alarms, trips and safety cut-outs provided on a tanker inert gas (IG) system.", "cross_family": true } ] }, { "qid": "KOL-2026-01-1162-Q001", "text": "Lit which I don't know", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOL-2026-01-1162", "tray": "new", "candidates": [ { "answer_id": "ENG-NOM-004", "score": 0.4193747043609619, "sibling_score": 0.4193747043609619, "answer_score": null, "sibling_qid": "MUM-2025-08-1153-Q002", "sibling_text": "what l stands for", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Decode every letter and number: 6S60MC-C and 6S70ME-C", "cross_family": true }, { "answer_id": "SGRS-328-006", "score": 0.4143340587615967, "sibling_score": 0.4143340587615967, "answer_score": null, "sibling_qid": "MUM-2025-12-1225-Q012", "sibling_text": "what is latern ring", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "What is the function of the neck bush and lantern ring in the ram gland?", "cross_family": true }, { "answer_id": "BDC-P01-06", "score": 0.41287192702293396, "sibling_score": 0.41287192702293396, "answer_score": null, "sibling_qid": "CHE-2025-12-0319-Q004", "sibling_text": "why li not used and cross ques", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "Lithium batteries vs lead-acid — basics, electrolyte and selection limits", "cross_family": true } ] }, { "qid": "KOL-2026-01-2036-Q005", "text": "in a steering gear system what is balanced rudder and why is it called so !", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2026-01-2036", "tray": "new", "candidates": [ { "answer_id": "STEER-055-A-004", "score": 0.5725781917572021, "sibling_score": 0.5725781917572021, "answer_score": null, "sibling_qid": "KOL-2019-02-3212-Q005", "sibling_text": "rudder is taking more to come from one side to the other reasons and maintenance", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Hydraulic faults — air, sluggish response, locking, leakage", "cross_family": false }, { "answer_id": "TRS-001", "score": 0.5643243193626404, "sibling_score": 0.5643243193626404, "answer_score": null, "sibling_qid": "KOL-2019-05-3236-Q005", "sibling_text": "rudder stock twisted how will you balance it how to find changed mishsip position", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "The rudder stock is twisted — how do you proceed, recover the true midship datum, and what 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Pumps", "via": "sibling", "answer_title": "CCAI — what it is, how it is calculated, and what it is really for", "cross_family": false }, { "answer_id": "FQCC-583-B-001", "score": 0.6111233234405518, "sibling_score": 0.6111233234405518, "answer_score": 0.3999840423464775, "sibling_qid": "KOL-2021-02-1895-Q002", "sibling_text": "what is do you understand by fuel quality how adjustment is done for fuel quality in the engine and how it is done on the engine fuel quality setting how does it work", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel quality — what properties do you look for, and how do you check them?", "cross_family": false }, { "answer_id": "FQCC-583-B-005", "score": 0.591395914554596, "sibling_score": 0.591395914554596, "answer_score": null, "sibling_qid": "KOC-2024-02-0990-Q007", "sibling_text": "fuel ignition quality", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Cetane number, octane number and fuel ignition quality — why no cetane number for residual fuels?", "cross_family": false } ] }, { "qid": "KOL-2026-01-3904-Q001", "text": "Purpose of pintle bearing", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2026-01-3904", "tray": "new", "candidates": [ { "answer_id": "TRS-002", "score": 0.6200886368751526, "sibling_score": 0.6200886368751526, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "BRG-NOM-004", "score": 0.5620301961898804, "sibling_score": 0.5620301961898804, "answer_score": null, "sibling_qid": "KOL-2026-05-0042-Q009", "sibling_text": "nip of bearing load carrying", "sibling_family": "", "via": "sibling", "answer_title": "Bearing Nip/Crush, Clearance, and How the Shell is Held", "cross_family": false }, { "answer_id": "BRG-NOM-003", "score": 0.5287978649139404, "sibling_score": 0.5287978649139404, "answer_score": null, "sibling_qid": "KOC-2026-01-1092-Q014", "sibling_text": "why thin metal bearing is used", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Thin-Shell, Bi-Metal and Tri-Metal Bearings — Construction and Why Thin-Shell", "cross_family": true } ] }, { "qid": "KOL-2026-01-4082-Q002", "text": "De emulsifier and emulsifier function examples", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Lube Oil Emulsification", "tid": "KOL-2026-01-4082", "tray": "new", "candidates": [ { "answer_id": "LO-TEST-P02-003", "score": 0.5044077634811401, "sibling_score": 0.5044077634811401, "answer_score": null, "sibling_qid": "MUM-2026-09-3878-Q006", "sibling_text": "emulsification of lube oil and actions to be taken", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Abnormal LO condition: sump rise, colour, high temperature/pressure, lacquer, deterioration", "cross_family": false }, { "answer_id": "LO-TEST-P02-001", "score": 0.4397924542427063, "sibling_score": 0.4397924542427063, "answer_score": null, "sibling_qid": "KOL-2020-10-1551-Q006", "sibling_text": "we use for that how will you come to know that lub oil dispersency characteristics has gone", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Lube-oil additives; detergency, dispersancy, lubricity and friction modifiers", "cross_family": false }, { "answer_id": "LO-TEST-P01-001", "score": 0.41072511672973633, "sibling_score": 0.41072511672973633, "answer_score": null, "sibling_qid": "MUM-2023-10-2201-Q002", "sibling_text": "viscosity not coming down", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Onboard lube-oil tests and the viscosity test", "cross_family": false } ] }, { "qid": "KOL-2026-02-1166-Q001", "text": "Type of vessel", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2026-02-1166", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8509957194328308, "sibling_score": 0.8509957194328308, "answer_score": null, "sibling_qid": "MUM-2026-06-3384-Q001", "sibling_text": "type of vessel", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.7771771550178528, "sibling_score": 0.7771771550178528, "answer_score": null, "sibling_qid": "CHE-2026-02-0481-Q001", "sibling_text": "type of vessels sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7703128457069397, "sibling_score": 0.7703128457069397, "answer_score": 0.5230402112007141, "sibling_qid": "CHE-2026-02-0109-Q001", "sibling_text": "type of ship explain what type is your vessel explain their type and difference", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "KOL-2026-02-1168-Q003", "text": "Role of IACS and cross question.", "family": "Surveys - Statutory", "subtopic": "PSC / Flag / RO / CIC / MoU", "tid": "KOL-2026-02-1168", "tray": "new", "candidates": [ { "answer_id": "IACS-324-001", "score": 0.5394426584243774, "sibling_score": 0.5394426584243774, "answer_score": 0.2851207658648491, "sibling_qid": "CHE-2026-05-0586-Q005", "sibling_text": "role of iacs", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "1. What is IACS and what are its functions?", "cross_family": false }, { "answer_id": "ICCP-119-P01-001", "score": 0.4592722952365875, "sibling_score": 0.4592722952365875, "answer_score": 0.18710866048932076, "sibling_qid": "CHE-2026-08-0668-Q004", "sibling_text": "what is iccp cross questions", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP — purpose, principle and basic working", "cross_family": true }, { "answer_id": "ICCP-119-P01-002", "score": 0.4420654773712158, "sibling_score": 0.4420654773712158, "answer_score": null, "sibling_qid": "MUM-2024-09-2771-Q009", "sibling_text": "construction of iccp and cross questions", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP circuit / control arrangement, construction and main components", "cross_family": true } ] }, { "qid": "KOL-2026-02-1172-Q005", "text": "LRIT", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "KOL-2026-02-1172", "tray": "new", "candidates": [ { "answer_id": "EPIRB-SART-001", "score": 0.47152647376060486, "sibling_score": 0.47152647376060486, "answer_score": null, "sibling_qid": "KOL-2017-09-0112-Q004", "sibling_text": "lrit vdr epirb sart mob marker", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What is the difference between EPIRB and SART? Give the function, construction, use and operation of each.", "cross_family": true }, { "answer_id": "TONN-007", "score": 0.43808573484420776, "sibling_score": 0.43808573484420776, "answer_score": null, "sibling_qid": "MUM-2026-06-3480-Q005", "sibling_text": "grt nrt", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Differentiate GT, NT, GRT/NRT, DWT, Lightweight and Displacement", "cross_family": true }, { "answer_id": "LCF-LCB-002", "score": 0.4151909053325653, "sibling_score": 0.4151909053325653, "answer_score": null, "sibling_qid": "MUM-2023-06-0109-Q007", "sibling_text": "lcf trim relationship", "sibling_family": "", "via": "sibling", "answer_title": "How does LCF relate to trim, and why does trim change about LCF rather than LCB?", "cross_family": false } ] }, { "qid": "KOL-2026-02-1175-Q001", "text": "External : bk roy Internal : oraon Which ship (tankers)", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2026-02-1175", "tray": "new", "candidates": [ { "answer_id": "COT-01", "score": 0.6342859864234924, "sibling_score": 0.6342859864234924, "answer_score": 0.44579035639762876, "sibling_qid": "KOC-2026-04-0892-Q003", "sibling_text": "type of ship sailed tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Oil-tanker types, definitions and cargo capability", "cross_family": false }, { "answer_id": "IBC-BCH-B-004", "score": 0.6000795960426331, "sibling_score": 0.6000795960426331, "answer_score": null, "sibling_qid": "MUM-2026-05-3156-Q001", "sibling_text": "type of ships chemical tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Certificate of Fitness and MARPOL Annex II in practice", "cross_family": false }, { "answer_id": "TKR-TYPE-004", "score": 0.5931210517883301, "sibling_score": 0.5931210517883301, "answer_score": null, "sibling_qid": "MUM-2025-12-0992-Q003", "sibling_text": "which type tanker", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "4. Tanker cargo-type classification, examples, and sweet vs sour crude", "cross_family": true } ] }, { "qid": "KOL-2026-02-1176-Q003", "text": "Type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2026-02-1176", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8366292715072632, "sibling_score": 0.8366292715072632, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8018827438354492, "sibling_score": 0.8018827438354492, "answer_score": 0.5473108261823654, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8003316521644592, "sibling_score": 0.8003316521644592, "answer_score": 0.5218650102615356, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "KOL-2026-02-1186-Q005", "text": "hazard area classification not zone 0,1,2.\tdont know what he", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "KOL-2026-02-1186", "tray": "new", "candidates": [ { "answer_id": "FLD-601-002", "score": 0.512171745300293, "sibling_score": 0.512171745300293, "answer_score": null, "sibling_qid": "MUM-2026-05-3085-Q007", "sibling_text": "what is flammability zone", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What is the flammable range and the flammability zone? What happens inside a cargo tank below 1% LEL?", "cross_family": false }, { "answer_id": "RA-MGMT-A-001", "score": 0.5057650804519653, "sibling_score": 0.5057650804519653, "answer_score": null, "sibling_qid": "KOL-2024-07-3702-Q002", "sibling_text": "what is hazard", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "What is risk, what is hazard, and what is risk assessment?", "cross_family": false }, { "answer_id": "ODC-007", "score": 0.49731090664863586, "sibling_score": 0.49731090664863586, "answer_score": null, "sibling_qid": "KOL-2025-03-0922-Q006", "sibling_text": "annex 1 discharge criteria what is special area how a special area is designated", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Special areas under Annex I — what they are, how one is designated, and which are in effect", "cross_family": false } ] }, { "qid": "KOL-2026-02-1831-Q003", "text": "Sfoc of gen(want to listen to keep power constant for 1 hour what all need to do)", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "SFOC", "tid": "KOL-2026-02-1831", "tray": "new", "candidates": [ { "answer_id": "LS-IMB-A-001", "score": 0.5421673655509949, "sibling_score": 0.5421673655509949, "answer_score": null, "sibling_qid": "KOL-2026-09-4291-Q003", "sibling_text": "generator power balancing", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "1. Two paralleled generators sharing unequal load — cause and correction", "cross_family": false }, { "answer_id": "IND-CARD-B-003", "score": 0.4976400136947632, "sibling_score": 0.4976400136947632, "answer_score": null, "sibling_qid": "KOL-2018-01-1337-Q005", "sibling_text": "draw power card and draw card then he told few faults to draw on them how to calculate power and sfoc after tht", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Power calculation from the indicator / power card", "cross_family": false }, { "answer_id": "VDIP-589-004", "score": 0.4808956980705261, "sibling_score": 0.4808956980705261, "answer_score": null, "sibling_qid": "KOL-2020-03-2380-Q002", "sibling_text": "regulation of generator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "What is voltage regulation of a generator?", "cross_family": true } ] }, { "qid": "KOL-2026-02-2957-Q006", "text": "How to carry out IR testing of bus bar ?", "family": "Electrical - Distribution & MSB", "subtopic": "MSB / ESB / Switchboard", "tid": "KOL-2026-02-2957", "tray": "new", "candidates": [ { "answer_id": "IRT-A-002", "score": 0.5750957727432251, "sibling_score": 0.5750957727432251, "answer_score": 0.4585629403591156, "sibling_qid": "MUM-2025-08-1607-Q014", "sibling_text": "first tell me about how will you isolate for ir testing what will check in ir test of", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Taking an IR test on a motor - isolation and procedure", "cross_family": true }, { "answer_id": "IRT-C-010", "score": 0.55571049451828, "sibling_score": 0.55571049451828, "answer_score": null, "sibling_qid": "KOC-2021-05-1132-Q003", "sibling_text": "procedure to check ir of galley heater megger uses is there any minimum ir value specified", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "IR of cables and heaters (non-motor)", "cross_family": true }, { "answer_id": "IRT-C-014", "score": 0.5523570775985718, "sibling_score": 0.5523570775985718, "answer_score": null, "sibling_qid": "KOL-2022-11-2626-Q006", "sibling_text": "ir test open circut short circuit", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Detecting winding faults — open, short & continuity", "cross_family": true } ] }, { "qid": "KOL-2026-02-2969-Q008", "text": "Contactor Maintenance?", "family": "Electrical - Protection & Relays", "subtopic": "Protection / Relays", "tid": "KOL-2026-02-2969", "tray": "new", "candidates": [ { "answer_id": "CBR-ARC-G-002", "score": 0.5971436500549316, "sibling_score": 0.5971436500549316, "answer_score": null, "sibling_qid": "CHE-2026-05-0630-Q007", "sibling_text": "acb maintenance working how many contacts are there", "sibling_family": "Electrical - Switchgear & Protection", "via": "sibling", "answer_title": "ACB construction, contacts, arc chutes, auxiliaries and VCB parts", "cross_family": true }, { "answer_id": "CB033-C-001", "score": 0.5946468114852905, "sibling_score": 0.5946468114852905, "answer_score": null, "sibling_qid": "CHE-2026-05-0633-Q011", "sibling_text": "maintenance on circuit breaker", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "How do you carry out maintenance and testing on an ACB / main circuit breaker?", "cross_family": false }, { "answer_id": "PRL-594-001", "score": 0.5911585688591003, "sibling_score": 0.5911585688591003, "answer_score": null, "sibling_qid": "CHE-2026-05-0611-Q006", "sibling_text": "contactor power supply", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "What is the difference between a relay and a contactor?", "cross_family": false } ] }, { "qid": "KOL-2026-02-3913-Q001", "text": "Piston ring calibration", "family": "2-Stroke - Components (Other)", "subtopic": "Piston Rings", "tid": "KOL-2026-02-3913", "tray": "review", "candidates": [ { "answer_id": "CYL-LINER-P01-001", "score": 0.8378397822380066, "sibling_score": 0.8378397822380066, "answer_score": null, "sibling_qid": "KOL-2023-11-3658-Q006", "sibling_text": "piston ring calibration liner calibration", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Carrying out main-engine liner calibration (gauging)", "cross_family": false }, { "answer_id": "PRING-CLR-A-002", "score": 0.8276286125183105, "sibling_score": 0.8276286125183105, "answer_score": 0.6073521137237549, "sibling_qid": "KOL-2021-08-3450-Q002", "sibling_text": "piston ring calibration", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston-ring clearances and calibration — butt, axial, radial, wear limits", "cross_family": false }, { "answer_id": "PST-CSI-BF-009", "score": 0.7432466149330139, "sibling_score": 0.7432466149330139, "answer_score": 0.6464914321899414, "sibling_qid": "MUM-2026-02-2572-Q009", "sibling_text": "piston calibration and how to compare", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "How do you calibrate a piston, and what do you compare the readings against?", "cross_family": false } ] }, { "qid": "KOL-2026-02-3914-Q004", "text": "1 unit hyd actuator is not working how will you procced", "family": "2-Stroke - Exhaust, Valve & Starting Air", "subtopic": "Exhaust Valve", "tid": "KOL-2026-02-3914", "tray": "new", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.6355000138282776, "sibling_score": 0.6355000138282776, "answer_score": null, "sibling_qid": "KOL-2026-05-4091-Q003", "sibling_text": "exhaust valve actuator is out of order for unit number 1 what is your action", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "HYD-JACK-002", "score": 0.5867341160774231, "sibling_score": 0.5867341160774231, "answer_score": null, "sibling_qid": "MUM-2026-01-1244-Q005", "sibling_text": "hydraulic jack leaking and you have to do unit overhaul tommorow your action as 2ae", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Hydraulic jack leaks, seizes, will not reach pressure, or nut will not loosen", "cross_family": true }, { "answer_id": "PIST-CSI-C-004", "score": 0.5605976581573486, "sibling_score": 0.5605976581573486, "answer_score": null, "sibling_qid": "KOL-2026-01-3905-Q005", "sibling_text": "one unit piston seized how you will proceed to shore", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston seizure, stuck piston and emergency running to port", "cross_family": true } ] }, { "qid": "KOL-2026-02-3919-Q005", "text": "5 degree shift in crank web how to what to do and what will change in engine ?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft Web / Journal / Shrink Fit", "tid": "KOL-2026-02-3919", "tray": "new", "candidates": [ { "answer_id": "CRK-DEFL-004", "score": 0.6134405732154846, "sibling_score": 0.6134405732154846, "answer_score": null, "sibling_qid": "MUM-2026-03-2636-Q009", "sibling_text": "crankshaft misallignment taken p s direction reading is showing large deviation why and actions", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Interpreting the readings and acting on abnormal values", "cross_family": false }, { "answer_id": "CRK-DEFL-003", "score": 0.6120840907096863, "sibling_score": 0.6120840907096863, "answer_score": null, "sibling_qid": "CHE-2026-05-0585-Q008", "sibling_text": "chain tightening and adjusting camshaft why if someone else takes crankshaft deflection by see it how can you say it is correct or wrong", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Verifying deflection readings taken by others", "cross_family": false }, { "answer_id": "CRANK-217-004", "score": 0.611339271068573, "sibling_score": 0.611339271068573, "answer_score": null, "sibling_qid": "MUM-2026-04-2104-Q008S5", "sibling_text": "crankshaft misalignment crankshaft slippage and how it rectified", "sibling_family": "2-Stroke - 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Overflow, Oil-Over-Water and Sludge Carry-Over — Causes, Checks and After-Overhaul Action", "cross_family": false }, { "answer_id": "PUR-DSL-002", "score": 0.5324609279632568, "sibling_score": 0.5324609279632568, "answer_score": 0.47996607720851897, "sibling_qid": "MUM-2024-06-2229-Q002", "sibling_text": "purifier overflow reasons and bowl height adjustment in detail", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Purifier overflow after desludging — causes, and checking or adjusting bowl height", "cross_family": false } ] }, { "qid": "KOL-2026-05-0041-Q004", "text": "Condition for Star connected motor( Six terminals in the JB Insulation good enough to withstand delta volatage and forgot)", "family": "", "subtopic": "", "tid": "KOL-2026-05-0041", "tray": "review", "candidates": [ { "answer_id": "SDST-D-001", "score": 0.67469322681427, "sibling_score": 0.67469322681427, "answer_score": 0.5848652243614196, "sibling_qid": "MUM-2026-01-1896-Q005", "sibling_text": "condition required to run an induction motor in a star delta connection minimum 3 don t mention about starter only motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Requirements for star-delta starting - motor-side criteria, nameplate logic and terminal connections.", "cross_family": false }, { "answer_id": "IR-TEST-D-002", "score": 0.6736272573471069, "sibling_score": 0.6736272573471069, "answer_score": null, "sibling_qid": "KOC-2024-06-1363-Q010", "sibling_text": "why eto periodically checking insulation resistance of motor paul show me how star and delta connection in motor terminal connection arrangement", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Why the motor's insulation is watched so closely — and why periodically", "cross_family": false }, { "answer_id": "SDST-C-001", "score": 0.6450490951538086, "sibling_score": 0.6450490951538086, "answer_score": null, "sibling_qid": "KOC-2025-11-1626-Q010", "sibling_text": "what happen in star delta if motor runs in star and if both contacts make that means in star and delta", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Star-delta faults - stuck in star, both contactors in, dead after changeover, symptoms and safe action.", "cross_family": false } ] }, { "qid": "KOL-2026-05-0041-Q005", "text": "Value of NER and what is it ?", "family": "", "subtopic": "", "tid": "KOL-2026-05-0041", "tray": "new", "candidates": [ { "answer_id": "NER-HV-P04-002", "score": 0.6097117066383362, "sibling_score": 0.6097117066383362, "answer_score": 0.3456647157669067, "sibling_qid": "MUM-2026-03-2041-Q002", "sibling_text": "how do you calculate the value of ner", "sibling_family": "", "via": "sibling", "answer_title": "How the NER value is selected/calculated, and its construction and material", "cross_family": false }, { "answer_id": "NER-HV-P04-001", "score": 0.5877118110656738, "sibling_score": 0.5877118110656738, "answer_score": 0.3204597055912018, "sibling_qid": "MUM-2025-08-1597-Q001", "sibling_text": "what is ner", "sibling_family": "", "via": "sibling", "answer_title": "What an NER is, where it is used, and why it is fitted in HV systems", "cross_family": false }, { "answer_id": "IR-TEST-305-005", "score": 0.2896301358938217, "sibling_score": null, "answer_score": 0.2896301358938217, "sibling_qid": "", "sibling_text": "star point hv alternator and ner context hv alternator neutral is earthed through an ner neutral earthing resistor to limit earth fault current lift the star point ner link before meggering otherwise you read through the resistor false low", "sibling_family": "", "via": "answer_title", "answer_title": "Star-point, HV alternator and NER context", "cross_family": false } ] }, { "qid": "KOL-2026-05-0042-Q002", "text": "Reefer LO properties, separator construction.", "family": "", "subtopic": "", "tid": "KOL-2026-05-0042", "tray": "new", "candidates": [ { "answer_id": "LO-TEST-P01-005", "score": 0.4983710050582886, "sibling_score": 0.4983710050582886, "answer_score": null, "sibling_qid": "MUM-2025-06-1132-Q008", "sibling_text": "lo properties", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Lube-oil properties, types and selection by duty", "cross_family": false }, { "answer_id": "LO-TEST-P02-001", "score": 0.40906572341918945, "sibling_score": 0.40906572341918945, "answer_score": null, "sibling_qid": "KOL-2025-07-4060-Q004", "sibling_text": "additives in l o name and it s properties no properties of l o only properties of additives", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Lube-oil additives; detergency, dispersancy, lubricity and friction modifiers", "cross_family": false }, { "answer_id": "PURIF-BOWL-P02-002", "score": 0.3987395167350769, "sibling_score": 0.3987395167350769, "answer_score": null, "sibling_qid": "KOL-2022-02-1661-Q002", "sibling_text": "driving source of a separator", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Drive, rated RPM, overload, vibration / wobbling & dynamic balancing — causes and troubleshooting", "cross_family": false } ] }, { "qid": "KOL-2026-05-0042-Q004", "text": "Plain tube & staytubes construction & materials.", "family": "", "subtopic": "", "tid": "KOL-2026-05-0042", "tray": "new", "candidates": [ { "answer_id": "BLR-TUBE-P01-004", "score": 0.5472451448440552, "sibling_score": 0.5472451448440552, "answer_score": 0.4408954083919525, "sibling_qid": "KOL-2018-12-1866-Q002", "sibling_text": "boiler tubes construction draw material", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "04. Tube material, dimensions and thickness checks", "cross_family": false }, { "answer_id": "BLR-TUBE-P01-002", "score": 0.5374396443367004, "sibling_score": 0.5374396443367004, "answer_score": null, "sibling_qid": "KOL-2025-07-1812-Q005", "sibling_text": "difference between stay tube and plain tube", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "03. Types, functions and arrangement of boiler tubes", "cross_family": false }, { "answer_id": "STT-BRG-002", "score": 0.5300124883651733, "sibling_score": 0.5300124883651733, "answer_score": 0.40563831627368924, "sibling_qid": "MUM-2026-03-2942-Q035", "sibling_text": "material used in stern tube manufacturing", "sibling_family": "Materials & Metallurgy", "via": "sibling", "answer_title": "1. Stern tube — arrangement, function, materials and types", "cross_family": false } ] }, { "qid": "KOL-2026-05-0043-Q004", "text": "Purifier overflowing, checks?", "family": "", "subtopic": "", "tid": "KOL-2026-05-0043", "tray": "new", "candidates": [ { "answer_id": "PURIF-172-004", "score": 0.5859930515289307, "sibling_score": 0.5859930515289307, "answer_score": 0.29644854068756105, "sibling_qid": "MUM-2026-06-3365-Q005", "sibling_text": "purifier overflow reasons", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Overflow, leakage & water-in-oil troubleshooting", "cross_family": false }, { "answer_id": "PUR-BOWL-P03-FINAL-1-003", "score": 0.530491292476654, "sibling_score": 0.530491292476654, "answer_score": 0.3241104483604431, "sibling_qid": "CHE-2026-02-0481-Q006", "sibling_text": "purifier overflowing after overhaul check as a second engineer do", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "3. Overflow, Oil-Over-Water and Sludge Carry-Over — Causes, Checks and After-Overhaul Action", "cross_family": false }, { "answer_id": "OCR-185-001", "score": 0.5050486922264099, "sibling_score": 0.5050486922264099, "answer_score": null, "sibling_qid": "MUM-2026-06-3613-Q006", "sibling_text": "overload over current checks", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Testing an overcurrent relay / overcurrent trip onboard", "cross_family": false } ] }, { "qid": "KOL-2026-05-0044-Q001", "text": "Whirling of shaft .", "family": "", "subtopic": "", "tid": "KOL-2026-05-0044", "tray": "new", "candidates": [ { "answer_id": "ALT-GEN-P04-001", "score": 0.5846080780029297, "sibling_score": 0.5846080780029297, "answer_score": null, "sibling_qid": "KOL-2019-10-2341-Q005", "sibling_text": "shaft generator working", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Shaft generator - working and arrangement", "cross_family": false }, { "answer_id": "SHAFT-GEN-001", "score": 0.5837506055831909, "sibling_score": 0.5837506055831909, "answer_score": null, "sibling_qid": "KOC-2025-10-1601-Q008", "sibling_text": "shaft generator working", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Shaft generator — working, arrangement, components and function", "cross_family": false }, { "answer_id": "VIB-BAL-C-FINAL-1-003", "score": 0.554000735282898, "sibling_score": 0.554000735282898, "answer_score": null, "sibling_qid": "MUM-2025-09-2400-Q002", "sibling_text": "balancing of shaft", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Static and Dynamic Balancing of the Crankshaft / Shaft", "cross_family": false } ] }, { "qid": "KOL-2026-05-0044-Q002", "text": "Global vibration analysis", "family": "", "subtopic": "", "tid": "KOL-2026-05-0044", "tray": "new", "candidates": [ { "answer_id": "VIB-BAL-A-001", "score": 0.5543578863143921, "sibling_score": 0.5543578863143921, "answer_score": 0.41848309636116027, "sibling_qid": "MUM-2025-09-1183-Q002", "sibling_text": "vibration topic in detail", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "VIB-A-01 — Engine vibration — what it is, its types and causes, and how it is controlled", "cross_family": false }, { "answer_id": "VIB-BAL-B-002", "score": 0.5336973667144775, "sibling_score": 0.5336973667144775, "answer_score": null, "sibling_qid": "KOL-2026-07-4277-Q005", "sibling_text": "trosional and axial vibration with location decider liner cranck indication", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Axial vibration and the axial vibration damper", "cross_family": false }, { "answer_id": "VIB-BAL-B-003", "score": 0.531928300857544, "sibling_score": 0.531928300857544, "answer_score": null, "sibling_qid": "KOL-2023-04-1929-Q002", "sibling_text": "about axial tortional and longitudinal vibration and it s arrangements and location", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Torsional vibration: what it is, what causes it, how it is controlled", "cross_family": false } ] }, { "qid": "KOL-2026-05-0044-Q003", "text": "Dynamic limiter", "family": "", "subtopic": "", "tid": "KOL-2026-05-0044", "tray": "new", "candidates": [ { "answer_id": "BCME-003", "score": 0.5093171000480652, "sibling_score": 0.5093171000480652, "answer_score": 0.3141323864459991, "sibling_qid": "MUM-2023-12-1068-Q008", "sibling_text": "what are the limiters and why are they provided", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Bridge-control safeties, limiters, ECS load/speed sensing and control-panel checks", "cross_family": false }, { "answer_id": "ESE-P02-001", "score": 0.4886220395565033, "sibling_score": 0.4886220395565033, "answer_score": null, "sibling_qid": "CHE-2026-05-0547-Q002", "sibling_text": "thresholds limit if value is within limit then can we enter", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "ESE-P02-01. Threshold limits, TLV and toxic-gas interpretation for entry", "cross_family": false }, { "answer_id": "COT-P03-01", "score": 0.4742943048477173, "sibling_score": 0.4742943048477173, "answer_score": null, "sibling_qid": "CHE-2025-11-0082-Q005", "sibling_text": "threshold limit", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "H₂S, benzene and toxic-cargo vapour exposure — hazards, limits, PPE and respirator checks", "cross_family": false } ] }, { "qid": "KOL-2026-05-0044-Q006", "text": "Extended surface area of plate type cooler . \n\nAnd lots of cross questions in all \nDecider:", "family": "", "subtopic": "", "tid": "KOL-2026-05-0044", "tray": "new", "candidates": [ { "answer_id": "PTHE-006", "score": 0.5469918847084045, "sibling_score": 0.5469918847084045, "answer_score": 0.42294172644615174, "sibling_qid": "CHE-2026-02-0111-Q004", "sibling_text": "factors you will consider for selecting a heat exchanger which one is very efficient i said plate type he asked if plate type is very efficient then you or we are using tube type in the main engine air cooler", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Why a plate type is not used for charge/scavenge air cooling", "cross_family": false }, { "answer_id": "PTHE-004", "score": 0.5357570648193359, "sibling_score": 0.5357570648193359, "answer_score": null, "sibling_qid": "KOL-2020-03-3332-Q002", "sibling_text": "plate type cooler leak detections", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Leak detection: external vs internal, and finding the plate", "cross_family": false }, { "answer_id": "PTHE-003", "score": 0.5354024767875671, "sibling_score": 0.5354024767875671, "answer_score": null, "sibling_qid": "KOL-2026-01-3901-Q004", "sibling_text": "plate type cooler cleaning", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Opening, cleaning, overhaul, plate alignment and reassembly", "cross_family": false } ] }, { "qid": "KOL-2026-05-0045-Q006", "text": "Fail alignment and how to check load on intermediate bearing which one have more load st or intermediate bearing", "family": "", "subtopic": "", "tid": "KOL-2026-05-0045", "tray": "new", "candidates": [ { "answer_id": "INT-SHAFT-003", "score": 0.6466966867446899, "sibling_score": 0.6466966867446899, "answer_score": null, "sibling_qid": "KOL-2025-12-3896-Q004", "sibling_text": "intermediate shaft bearing repaired on ship where will be the load more isb or st bearing and how to find out how much load", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "3. Intermediate-shaft bearings: lubrication, high temperature, survey and load", "cross_family": false }, { "answer_id": "ISB-435-002", "score": 0.6429239511489868, "sibling_score": 0.6429239511489868, "answer_score": 0.47157207429409026, "sibling_qid": "KOL-2021-09-3458-Q002", "sibling_text": "intermediate bearing load where all you put jacks and dial gauge how you decide load", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Checking the load on an intermediate shaft bearing — jack placement, dial gauge, and reading the load", "cross_family": false }, { "answer_id": "ISB-435-001", "score": 0.6361702680587769, "sibling_score": 0.6361702680587769, "answer_score": null, "sibling_qid": "KOL-2021-04-1586-Q004", "sibling_text": "intermediate shaft bearing overloaded hw you will come to know", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Intermediate shaft bearing running hot — causes, overload indication, immediate action", "cross_family": false } ] }, { "qid": "KOL-2026-05-0045-Q008", "text": "Types of main engine, I said ME-b and ME-C, ELFI", "family": "", "subtopic": "", "tid": "KOL-2026-05-0045", "tray": "new", "candidates": [ { "answer_id": "MEB-MEC-P03-001", "score": 0.5849205255508423, "sibling_score": 0.5849205255508423, "answer_score": null, "sibling_qid": "MUM-2026-05-3000-Q003", "sibling_text": "different between me b and me c engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "ME-B vs ME-C — the core difference", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.5641153454780579, "sibling_score": 0.5641153454780579, "answer_score": null, "sibling_qid": "MUM-2026-09-3880-Q001", "sibling_text": "main engine type", "sibling_family": "2-Stroke - Operations & General", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false }, { "answer_id": "CTRL-TL-002", "score": 0.5607753992080688, "sibling_score": 0.5607753992080688, "answer_score": null, "sibling_qid": "MUM-2025-06-1133-Q004", "sibling_text": "main engine me type of controller", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Function of a controller, and types used on board", "cross_family": false } ] }, { "qid": "KOL-2026-05-0045-Q009", "text": "Having 2 T/C can we run the engine if one fail how and how to isolate tell procedure.", "family": "", "subtopic": "", "tid": "KOL-2026-05-0045", "tray": "new", "candidates": [ { "answer_id": "TC-CS-P01-007", "score": 0.5973300337791443, "sibling_score": 0.5973300337791443, "answer_score": null, "sibling_qid": "KOC-2025-02-1901-Q004", "sibling_text": "if t c fails how to run engine", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "G·Running the engine with a turbocharger out of service", "cross_family": false }, { "answer_id": "TURBO-CS-P02-013", "score": 0.5097740292549133, "sibling_score": 0.5097740292549133, "answer_score": 0.35284544378519056, "sibling_qid": "KOL-2019-03-3221-Q001", "sibling_text": "one tc without bypass isolate 2 drydock checks after flooding by 2nd eng", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Multi-turbocharger engine: isolating one unit (bypass vs non-bypass)", "cross_family": false }, { "answer_id": "TURBO-CS-P03-017", "score": 0.4669610261917114, "sibling_score": 0.4669610261917114, "answer_score": 0.3595851168036461, "sibling_qid": "KOL-2021-07-3420-Q003", "sibling_text": "how to isolate one t c in engine with 2 t c what all to monitor before and after", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Operating with one turbocharger isolated (multi-T/c engine)", "cross_family": false } ] }, { "qid": "KOL-2026-05-0046-Q002", "text": "In control panel how power come.", "family": "", "subtopic": "", "tid": "KOL-2026-05-0046", "tray": "new", "candidates": [ { "answer_id": "MSB-ESB-A-003", "score": 0.5817292928695679, "sibling_score": 0.5817292928695679, "answer_score": null, "sibling_qid": "KOL-2025-03-2774-Q003", "sibling_text": "power supply details for control panel in ecr", "sibling_family": "", "via": "sibling", "answer_title": "Feeder panels, group-starter panels and motor panels", "cross_family": false }, { "answer_id": "IND-CARD-B-003", "score": 0.5488805174827576, "sibling_score": 0.5488805174827576, "answer_score": null, "sibling_qid": "KOC-2024-03-1836-Q003", "sibling_text": "power calculation from power card", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Power calculation from the indicator / power card", "cross_family": false }, { "answer_id": "AUC-PLC-03", "score": 0.5460162162780762, "sibling_score": 0.5460162162780762, "answer_score": 0.3857516020536423, "sibling_qid": "KOL-2025-05-2784-Q003", "sibling_text": "plc source of power", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "PLC power supply arrangements — normal, emergency and ride-through", "cross_family": false } ] }, { "qid": "KOL-2026-05-0047-Q001", "text": "There is emergency onboard,tell me 4 important elements during emergency action,function of command centre?", "family": "SOLAS - Fire Safety", "subtopic": "Fire Emergency Response / Container Firefighting", "tid": "KOL-2026-05-0047", "tray": "new", "candidates": [ { "answer_id": "FCP-001", "score": 0.6253284811973572, "sibling_score": 0.6253284811973572, "answer_score": null, "sibling_qid": "KOC-2025-02-0546-Q002", "sibling_text": "fire control plan content expecting emerg escape route", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "What is the fire control plan, and what does it show — including bulkhead types and escape routes?", "cross_family": false }, { "answer_id": "FIRE-P04-04", "score": 0.6228967308998108, "sibling_score": 0.6228967308998108, "answer_score": 0.4525375783443451, "sibling_qid": "KOL-2017-10-0120-Q005", "sibling_text": "action in case of control room fire", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Control-room / ECR fire — response and control continuity", "cross_family": false }, { "answer_id": "CH-FIRE-001", "score": 0.6168664693832397, "sibling_score": 0.6168664693832397, "answer_score": null, "sibling_qid": "KOL-2022-05-0632-Q006", "sibling_text": "4 cargo hold fire detection and extinguish", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Cargo hold fire detection / smoke detection system", "cross_family": false } ] }, { "qid": "KOL-2026-05-0047-Q002", "text": "Why LPG fire fighting is many challenge explain harm in using low foam?", "family": "Cargo Ops - Gas Carriers", "subtopic": "LPG / LNG", "tid": "KOL-2026-05-0047", "tray": "new", "candidates": [ { "answer_id": "FOAM-032-P03-002", "score": 0.5966030955314636, "sibling_score": 0.5966030955314636, "answer_score": null, "sibling_qid": "KOL-2018-12-0243-Q005", "sibling_text": "high expansion foam and why it is preferred these days 7 co2 fire fighting disadvantages 8 lrit in detail", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "High-expansion foam generator / nozzle arrangement — draw and explain", "cross_family": true }, { "answer_id": "IGC-GAS-006", "score": 0.5836336016654968, "sibling_score": 0.5836336016654968, "answer_score": null, "sibling_qid": "MUM-2022-07-0020-Q004", "sibling_text": "lng firefighting", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Deck fixed dry chemical powder (DCP) fire-extinguishing system", "cross_family": false }, { "answer_id": "FOAM-P02-001", "score": 0.5742336511611938, "sibling_score": 0.5742336511611938, "answer_score": null, "sibling_qid": "MUM-2024-07-0186-Q004", "sibling_text": "foam fixed firefighting why low expansion foam on deck", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Draw and explain the fixed deck foam firefighting system used on a tanker.", "cross_family": true } ] }, { "qid": "KOL-2026-05-0047-Q005", "text": "Why transversally rigid and longitudinal flexible \nXx on rt flex fuel pp", "family": "", "subtopic": "", "tid": "KOL-2026-05-0047", "tray": "new", "candidates": [ { "answer_id": "TOP-BRC-001", "score": 0.6446874737739563, "sibling_score": 0.6446874737739563, "answer_score": null, "sibling_qid": "KOL-2022-01-1657-Q006", "sibling_text": "engine is supported rigid transversely and is flexible longitudinally reason", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "1. What top bracing is, where it is fitted, and why", "cross_family": false }, { "answer_id": "RTFLEX-319-004", "score": 0.5744050145149231, "sibling_score": 0.5744050145149231, "answer_score": null, "sibling_qid": "KOL-2020-07-1541-Q006", "sibling_text": "rt flex common rail pr", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Common-rail fuel injection: control, timing, volume and FQS setting", "cross_family": false }, { "answer_id": "RTFLEX-319-002", "score": 0.5334182977676392, "sibling_score": 0.5334182977676392, "answer_score": 0.44072360694408413, "sibling_qid": "KOL-2016-11-3017-Q001", "sibling_text": "engine type rt flex", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "RT-flex overview, 'describe your engine', working and the type designation", "cross_family": false } ] }, { "qid": "KOL-2026-05-0047-Q007", "text": "Carbon increase on metal,what will happen xx,", "family": "", "subtopic": "", "tid": "KOL-2026-05-0047", "tray": "new", "candidates": [ { "answer_id": "MATPROP-A-001", "score": 0.5380071401596069, "sibling_score": 0.5380071401596069, "answer_score": null, "sibling_qid": "KOL-2020-02-1524-Q003", "sibling_text": "effect of carbon on steel", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Steel types and composition", "cross_family": false }, { "answer_id": "STEEL-GR-002", "score": 0.5225235223770142, "sibling_score": 0.5225235223770142, "answer_score": null, "sibling_qid": "KOL-2020-02-0390-Q009", "sibling_text": "carbon percentage and effects of carbon on steel", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Mild steel — composition, use, and how it differs from cast iron", "cross_family": false }, { "answer_id": "HT-TCS-B-002", "score": 0.47523483633995056, "sibling_score": 0.47523483633995056, "answer_score": null, "sibling_qid": "KOL-2020-01-3313-Q004", "sibling_text": "carbonizing", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Case & surface hardening — methods and engine components", "cross_family": false } ] }, { "qid": "KOL-2026-05-0047-Q009", "text": "Shape of efficiency curve of centeifugal pp", "family": "", "subtopic": "", "tid": "KOL-2026-05-0047", "tray": "new", "candidates": [ { "answer_id": "PCD-P01-04", "score": 0.5519944429397583, "sibling_score": 0.5519944429397583, "answer_score": 0.4397386997938156, "sibling_qid": "CHE-2025-12-0235-Q003", "sibling_text": "draw centrifugal pump hq curve why efficiency curve passes hq curve at what point you will run your pump more about efficiency curve", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Centrifugal pump characteristic curves — H-Q, efficiency, power, NPSH, operating point, parallel running", "cross_family": false }, { "answer_id": "PERF-CRV-001", "score": 0.5281221866607666, "sibling_score": 0.5281221866607666, "answer_score": null, "sibling_qid": "MUM-2026-07-3769-Q003", "sibling_text": "propeller curve", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Propeller curve — what it is, use and margin", "cross_family": false }, { "answer_id": "SHAFT-CPP-001", "score": 0.5274081230163574, "sibling_score": 0.5274081230163574, "answer_score": 0.3773589670658111, "sibling_qid": "MUM-2026-05-3129-Q003", "sibling_text": "propeller curve", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "1. 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Components (Other)", "via": "sibling", "answer_title": "How is a shipboard risk assessment prepared and carried out?", "cross_family": true } ] }, { "qid": "KOL-2026-05-0049-Q004", "text": "Delivered power", "family": "", "subtopic": "", "tid": "KOL-2026-05-0049", "tray": "review", "candidates": [ { "answer_id": "RES-PROP-P02-004", "score": 0.716777503490448, "sibling_score": 0.716777503490448, "answer_score": null, "sibling_qid": "KOL-2019-11-0355-Q005", "sibling_text": "delivered power and effective power", "sibling_family": "", "via": "sibling", "answer_title": "Ship power definitions and estimation — effective, delivered, shaft and indicated power", "cross_family": false }, { "answer_id": "IND-CARD-B-003", "score": 0.6462571620941162, "sibling_score": 0.6462571620941162, "answer_score": null, "sibling_qid": "KOC-2024-03-1836-Q003", "sibling_text": "power calculation from power card", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Power calculation from the indicator / power card", "cross_family": false }, { "answer_id": "MIP-264-003", "score": 0.6448342204093933, "sibling_score": 0.6448342204093933, "answer_score": null, "sibling_qid": "KOC-2021-05-2022-Q021", "sibling_text": "power calculation in detail", "sibling_family": "2-Stroke - 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How is the alternator air gap checked, and what does an abnormal gap tell you?", "cross_family": false } ] }, { "qid": "KOL-2026-05-0055-Q001", "text": "TYPE OF SHIP", "family": "", "subtopic": "", "tid": "KOL-2026-05-0055", "tray": "review", "candidates": [ { "answer_id": "LLST-AB-002", "score": 0.8003316521644592, "sibling_score": 0.8003316521644592, "answer_score": 0.5218650102615356, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.7866291999816895, "sibling_score": 0.7866291999816895, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7726447582244873, "sibling_score": 0.7726447582244873, "answer_score": 0.5473108768463134, "sibling_qid": "KOL-2016-12-0035-Q003", "sibling_text": "type a type b ship define", "sibling_family": "", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "KOL-2026-05-0055-Q002", "text": "EICU AND ITS FUNCTION", "family": "", "subtopic": "", "tid": "KOL-2026-05-0055", "tray": "new", "candidates": [ { "answer_id": "EICU-MAN-P01-001", "score": 0.5729345083236694, "sibling_score": 0.5729345083236694, "answer_score": 0.3927352473139763, "sibling_qid": "KOC-2026-08-2158-Q013", "sibling_text": "function of eicu and ecu", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "EICU, ECU, CCU, ACU — the ME control units and what is controlled electronically", "cross_family": false }, { "answer_id": "MEB-MEC-P03-002", "score": 0.5415260791778564, "sibling_score": 0.5415260791778564, "answer_score": 0.2777319610118866, "sibling_qid": "KOL-2026-01-4081-Q002", "sibling_text": "ccu function eicu function", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "ME camless control architecture — ECS, CCU, EICU, MPC", "cross_family": false }, { "answer_id": "EICU-MAN-P01-004", "score": 0.5395448803901672, "sibling_score": 0.5395448803901672, "answer_score": 0.2991317793726921, "sibling_qid": "KOL-2025-07-1993-Q003", "sibling_text": "ecu and eicu", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Control-unit failure — CCU / ECU / EICU: can you still run the engine?", "cross_family": false } ] }, { "qid": "KOL-2026-05-0055-Q004", "text": "BILGE INJECTION VALVE AND HOW TO TEST ITS WORKING", "family": "", "subtopic": "", "tid": "KOL-2026-05-0055", "tray": "new", "candidates": [ { "answer_id": "PCD-P04-02", "score": 0.6277326345443726, "sibling_score": 0.6277326345443726, "answer_score": 0.5210059016942977, "sibling_qid": "MUM-2025-12-0661-Q003", "sibling_text": "how to test emergency bilge suction valve said procedure and can check from pr gauge pr drop said dimag hai kay and touched his head and laughing", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "02. Emergency bilge suction — the bilge injection valve, testing and SOLAS requirements", "cross_family": false }, { "answer_id": "PPS-622-004", "score": 0.5876104831695557, "sibling_score": 0.5876104831695557, "answer_score": null, "sibling_qid": "KOL-2017-01-3022-Q001", "sibling_text": "bilge pump showing suction pr 0 is it right if not why what its shows how u will test bilge pump suction line", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "The bilge or ballast pump is not taking suction — reasons, how to identify the problem, how to rectify it. What does the suction gauge read, and what is suction head?", "cross_family": false }, { "answer_id": "PCD-P04-01", "score": 0.5650845766067505, "sibling_score": 0.5650845766067505, "answer_score": null, "sibling_qid": "MUM-2026-06-3406-Q004", "sibling_text": "valves on bilge pump", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "01. Bilge pump — type, why not centrifugal, and the suction valve chest", "cross_family": false } ] }, { "qid": "KOL-2026-05-0055-Q008", "text": "EXHAUST PIPE OF ALL THE GENERATOR HAVE BECOME RED HOT. WHY AND WHAT ACTIONS TO TAKE", "family": "", "subtopic": "", "tid": "KOL-2026-05-0055", "tray": "review", "candidates": [ { "answer_id": "AE-HOT-BLOW-005", "score": 0.6877367496490479, "sibling_score": 0.6877367496490479, "answer_score": null, "sibling_qid": "MUM-2026-07-3847-Q010", "sibling_text": "ae all unit exhaust pipe red hot reson", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Auxiliary engine units rising — one versus all, and confirming a choked turbocharger nozzle ring", "cross_family": false }, { "answer_id": "EXH-T-HI-001", "score": 0.6874697208404541, "sibling_score": 0.6874697208404541, "answer_score": 0.5462286442518234, "sibling_qid": "MUM-2026-06-3616-Q013", "sibling_text": "ae all unit exhaust pipe red hot reason", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "All units exhaust temperature high — causes and actions", "cross_family": false }, { "answer_id": "EXH-T-HI-002", "score": 0.672195553779602, "sibling_score": 0.672195553779602, "answer_score": 0.5327496528625488, "sibling_qid": "CHE-2026-04-0259-Q004", "sibling_text": "temp of one unit exhaust is high wt will be ur action", "sibling_family": "2-Stroke - 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Give examples, say where it is found, how much time is given to rectify it, and what happens if it is not met in time.", "cross_family": false } ] }, { "qid": "KOL-2026-05-0062-Q001", "text": "High voltage hazard and safety", "family": "", "subtopic": "", "tid": "KOL-2026-05-0062", "tray": "review", "candidates": [ { "answer_id": "HV-SYS-P04-001", "score": 0.7321783304214478, "sibling_score": 0.7321783304214478, "answer_score": 0.5320531755685806, "sibling_qid": "KOL-2025-06-1981-Q002", "sibling_text": "all safeties in high voltage", "sibling_family": "", "via": "sibling", "answer_title": "HV-SYS-P04-001 - HV hazards, advantages and safeties", "cross_family": false }, { "answer_id": "HV-SYS-P05-001", "score": 0.7217448949813843, "sibling_score": 0.7217448949813843, "answer_score": null, "sibling_qid": "MUM-2022-08-1346-Q002", "sibling_text": "define high voltage what additional safeties if high voltage", "sibling_family": "", "via": "sibling", "answer_title": "HV switchboard (MSB): safeties, interlocks and protective features", "cross_family": false }, { "answer_id": "HV-SYS-P05-002", "score": 0.7083019614219666, "sibling_score": 0.7083019614219666, "answer_score": null, "sibling_qid": "MUM-2026-01-1913-Q003", "sibling_text": "safety taken before working on high voltage", "sibling_family": "", "via": "sibling", "answer_title": "Working on the HV system: precautions, isolation and earthing before maintenance", "cross_family": false } ] }, { "qid": "KOL-2026-05-0063-Q002", "text": "Engines you have worked on.", "family": "", "subtopic": "", "tid": "KOL-2026-05-0063", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.7352765202522278, "sibling_score": 0.7352765202522278, "answer_score": null, "sibling_qid": "KOL-2026-05-4244-Q002", "sibling_text": "engines you have worked on", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "MCC-MEB-P02-001", "score": 0.6491059064865112, "sibling_score": 0.6491059064865112, "answer_score": null, "sibling_qid": "MUM-2026-07-3762-Q017", "sibling_text": "development on me engines", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Trace the development from MC / SMC engines to MC-C and ME engines", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.6095150709152222, "sibling_score": 0.6095150709152222, "answer_score": null, "sibling_qid": "CHE-2026-04-0506-Q003", "sibling_text": "types of engine you worked specifications of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false } ] }, { "qid": "KOL-2026-05-0063-Q005", "text": "Power balancing of main engine? How would you adjust Pmax of the fuel pump.(He wanted to listen to timing adjustment by cam adjustment.) How will you get the value of MEP from Power Card?", "family": "", "subtopic": "", "tid": "KOL-2026-05-0063", "tray": "review", "candidates": [ { "answer_id": "MIP-264-006", "score": 0.6785129904747009, "sibling_score": 0.6785129904747009, "answer_score": null, "sibling_qid": "CHE-2026-02-0112-Q001", "sibling_text": "how to increase the mep of our engine i said by increasing pmax he asked how to increase pmax i said pcomp he asked how to increase pcom i said by increasing scavenge pressure he asked how to increase scavenge pressure i said don t know", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Increasing engine power / MEP, and what increasing MEP achieves", "cross_family": false }, { "answer_id": "MIP-264-005", "score": 0.6697529554367065, "sibling_score": 0.6697529554367065, "answer_score": 0.6060050100088119, "sibling_qid": "MUM-2026-06-3663-Q008", "sibling_text": "hot to calculate the engine power if unbalance in power how will you adjust", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Power balancing using MIP/MEP and indicator-card data", "cross_family": false }, { "answer_id": "FCL-P03-001", "score": 0.6659322381019592, "sibling_score": 0.6659322381019592, "answer_score": null, "sibling_qid": "KOL-2024-06-3695-Q002", "sibling_text": "ae performance peak pressure and exhaust temp is high on kne unit reason how to adjust fuel pump timings all process to adjust timing need to retard or advance by srinivas", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "AE / auxiliary-engine fuel pump timing check and adjustment", "cross_family": false } ] }, { "qid": "KOL-2026-05-0063-Q006", "text": "How will you check the tightness of tie rods in MC and MC-C engines.(He wanted to listen to the loosening of pinching screws and then the sequence of tightening, whether forward to aft or centre to either side, depending upon the Engine Model.)", "family": "", "subtopic": "", "tid": "KOL-2026-05-0063", "tray": "review", "candidates": [ { "answer_id": "TBR-TT-P02-002", "score": 0.7292603254318237, "sibling_score": 0.7292603254318237, "answer_score": 0.5549857556819916, "sibling_qid": "KOL-2026-05-4244-Q010", "sibling_text": "how will you check the tightness of tie rods in mc and mc c engines", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Checking tie rod tightness / slackness — stopped and running", "cross_family": false }, { "answer_id": "TBR-TT-P02-001", "score": 0.6715301275253296, "sibling_score": 0.6715301275253296, "answer_score": 0.5481844246387482, "sibling_qid": "CHE-2026-04-0502-Q002", "sibling_text": "tie rod tightening procedure me engine", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Tie rod tightening / hydraulic tensioning procedure", "cross_family": false }, { "answer_id": "TR-TB-PA-004", "score": 0.6712272763252258, "sibling_score": 0.6712272763252258, "answer_score": 0.5275848686695098, "sibling_qid": "KOL-2022-01-3999-Q003", "sibling_text": "tie rod position of tie rod from centre line in mc c is it closer or apart from centre line as compared to mc engine", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Arrangement, number and position; twin tie rods and MC/MC-C developments", "cross_family": false } ] }, { "qid": "KOL-2026-05-0063-Q007", "text": "Type of Fresh water Generator you had? Fresh Water production has dropped drastically, what will be your sequence of actions?(Starting from condenser tubes, to pressure testing of condenser shell to ascertain leaks and cracks or corrosion. He finally accepted scaling of evaporator tubes.) Chemical cleaning of the tubes did not quite help in the scale removal, what is your next plan of action? Condenser is overhauled, and you observe that few tubes are fully choked with hard scale, which cannot be cleaned even by applying wire brush, what is your plan of action?(He did not accept chemical cleaning, wire brush cleaning or tube renewal", "family": "", "subtopic": "", "tid": "KOL-2026-05-0063", "tray": "review", "candidates": [ { "answer_id": "STHX-006", "score": 0.7242066860198975, "sibling_score": 0.7242066860198975, "answer_score": 0.5863854467868804, "sibling_qid": "MUM-2026-02-2571-Q007", "sibling_text": "how to remove the scaling of the heat exchanger on the atm condensor", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "STHX-06 — Cleaning, descaling, inspection, maintenance and precautions", "cross_family": false }, { "answer_id": "VAC-COND-004", "score": 0.6917661428451538, "sibling_score": 0.6917661428451538, "answer_score": 0.5988883972167969, "sibling_qid": "KOC-2026-09-2214-Q010", "sibling_text": "how to renew replace the atmospheric condenser tubes", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Vacuum condenser tube replacement and pressure testing", "cross_family": false }, { "answer_id": "STHX-008", "score": 0.6744116544723511, "sibling_score": 0.6744116544723511, "answer_score": null, "sibling_qid": "KOL-2018-08-3176-Q005", "sibling_text": "retubing full procedure asked if condenser tube has leaked how to replace it", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "STHX-08 — Condensers (main / auxiliary / dump): tube attachment, testing, renewal and safety", "cross_family": false } ] }, { "qid": "KOL-2026-05-0064-Q004", "text": "Why not octane no?", "family": "", "subtopic": "", "tid": "KOL-2026-05-0064", "tray": "new", "candidates": [ { "answer_id": "FQCC-583-B-005", "score": 0.5289261341094971, "sibling_score": 0.5289261341094971, "answer_score": 0.41659604161977765, "sibling_qid": "KOC-2023-08-0983-Q001", "sibling_text": "cetane no octane no", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Cetane number, octane number and fuel ignition quality — why no cetane number for residual fuels?", "cross_family": false }, { "answer_id": "FQCC-583-A-001", "score": 0.44500336050987244, "sibling_score": 0.44500336050987244, "answer_score": null, "sibling_qid": "MUM-2026-06-3450-Q011", "sibling_text": "what is octane cetane and ccai", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "CCAI — what it is, how it is calculated, and what it is really for", "cross_family": false }, { "answer_id": "FQCC-583-A-004", "score": 0.40242719650268555, "sibling_score": 0.40242719650268555, "answer_score": null, "sibling_qid": "KOL-2025-07-4060-Q003", "sibling_text": "why mixed fame in fuel oil", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "FAME — what it is, why it is blended, and the limits", "cross_family": false } ] }, { "qid": "KOL-2026-05-0064-Q006", "text": "What are static members of main engine?", "family": "", "subtopic": "", "tid": "KOL-2026-05-0064", "tray": "new", "candidates": [ { "answer_id": "CPP-GRM-05", "score": 0.5020451545715332, "sibling_score": 0.5020451545715332, "answer_score": 0.33718491345643997, "sibling_qid": "KOC-2025-02-1030-Q007", "sibling_text": "define static and dynamic load in engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Static and dynamic engine loads", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.45877909660339355, "sibling_score": 0.45877909660339355, "answer_score": null, "sibling_qid": "MUM-2026-09-3880-Q001", "sibling_text": "main engine type", "sibling_family": "2-Stroke - Operations & General", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false }, { "answer_id": "MIP-264-003", "score": 0.4564972221851349, "sibling_score": 0.4564972221851349, "answer_score": null, "sibling_qid": "MUM-2026-01-1248-Q002", "sibling_text": "engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Calculate engine power: IHP and BHP, and where each is measured", "cross_family": false } ] }, { "qid": "KOL-2026-05-0064-Q007", "text": "How is A frame and bedplate fitted", "family": "", "subtopic": "", "tid": "KOL-2026-05-0064", "tray": "new", "candidates": [ { "answer_id": "FB-COUP-001", "score": 0.5006498694419861, "sibling_score": 0.5006498694419861, "answer_score": null, "sibling_qid": "KOL-2026-05-0064-Q008", "sibling_text": "how is a frame and entablature fitted fitted bolts is the answer", "sibling_family": "", "via": "sibling", "answer_title": "What fitted bolts are, what they do, and where they sit onboard", "cross_family": false }, { "answer_id": "BED-CHOCK-001", "score": 0.4702748954296112, "sibling_score": 0.4702748954296112, "answer_score": 0.385627880692482, "sibling_qid": "MUM-2023-08-0952-Q004", "sibling_text": "how to fix bed plate on ship", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "How is the main-engine bedplate fixed to the ship's structure?", "cross_family": false }, { "answer_id": "FLR-WFB-P01-006", "score": 0.4645593762397766, "sibling_score": 0.4645593762397766, "answer_score": null, "sibling_qid": "KOL-2020-10-0428-Q004", "sibling_text": "what is frames explain longitudinal and transvers frame web frame where fitted", "sibling_family": "", "via": "sibling", "answer_title": "Web frames — what they are, where situated, how they give transverse strength", "cross_family": false } ] }, { "qid": "KOL-2026-05-0064-Q010", "text": "Back pressure valve...why not in case of meat room and fish room?", "family": "", "subtopic": "", "tid": "KOL-2026-05-0064", "tray": "review", "candidates": [ { "answer_id": "BPV-315-006", "score": 0.6511582136154175, "sibling_score": 0.6511582136154175, "answer_score": 0.4392435610294342, "sibling_qid": "KOC-2026-05-0011-Q003", "sibling_text": "in provision refer plant how veg fish and meat room temp maintaining ask me to sketch where back pressure valve will be there", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Where the back pressure valve fits in a provision plant (sketch)", "cross_family": false }, { "answer_id": "BPV-315-002", "score": 0.5950446128845215, "sibling_score": 0.5950446128845215, "answer_score": 0.5283286154270171, "sibling_qid": "MUM-2026-06-3620-Q006", "sibling_text": "back pressure valve in veg room", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Why a back pressure valve after the veg room when a TEV is already fitted", "cross_family": false }, { "answer_id": "REFR-FLT-001", "score": 0.5383573770523071, "sibling_score": 0.5383573770523071, "answer_score": null, "sibling_qid": "KOL-2025-03-3758-Q007", "sibling_text": "fish room temp not coming up reason told him about the faulty solenoid valve again asked me what will you do if no spare solenoid valve available onboard and you can t shift the fish to the meat room", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Provision/cold room temperature: will not pull down, runs too low, or will not hold", "cross_family": false } ] }, { "qid": "KOL-2026-05-0064-Q012", "text": "Why we are doing it at 40%\n\nDecider", "family": "", "subtopic": "", "tid": "KOL-2026-05-0064", "tray": "new", "candidates": [ { "answer_id": "PMAX-PCOMP-BF041-003", "score": 0.4291599988937378, "sibling_score": 0.4291599988937378, "answer_score": null, "sibling_qid": "KOC-2024-10-1012-Q011", "sibling_text": "why 40 bar", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Pcomp and Pmax — the difference, the values you would expect, and what you do if either is low or high", "cross_family": false }, { "answer_id": "VIT-MECH-B-001", "score": 0.4163420498371124, "sibling_score": 0.4163420498371124, "answer_score": null, "sibling_qid": "KOL-2017-09-1325-Q006", "sibling_text": "vit set points why it is restricted to 40 some more cross", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "The VIT / Super VIT curve — breakpoint, range and load-dependent advance/retard", "cross_family": false }, { "answer_id": "EGTP-P02-008", "score": 0.37784942984580994, "sibling_score": 0.37784942984580994, "answer_score": null, "sibling_qid": "MUM-2023-08-1058-Q009", "sibling_text": "why not at and below 40 45 load", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "General Engine Theory — Operating Envelope", "cross_family": false } ] }, { "qid": "KOL-2026-05-0066-Q003", "text": "Boiler survey..how many times you call surveyor", "family": "", "subtopic": "", "tid": "KOL-2026-05-0066", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.693892240524292, "sibling_score": 0.693892240524292, "answer_score": null, "sibling_qid": "KOL-2026-05-0045-Q005", "sibling_text": "boiler surveyor how many times surveyor comes", "sibling_family": "", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.56721031665802, "sibling_score": 0.56721031665802, "answer_score": 0.40437647998332976, "sibling_qid": "MUM-2026-05-3001-Q008", "sibling_text": "how frequently we do boiler survey and cross question on survey", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-008", "score": 0.5459963083267212, "sibling_score": 0.5459963083267212, "answer_score": null, "sibling_qid": "KOL-2017-01-1841-Q004", "sibling_text": "boiler preparation for survey", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOL-2026-05-0066-Q005", "text": "Er ums requirement (he wanted to ask most important req)", "family": "", "subtopic": "", "tid": "KOL-2026-05-0066", "tray": "new", "candidates": [ { "answer_id": "UMS-310-001", "score": 0.6052857041358948, "sibling_score": 0.6052857041358948, "answer_score": null, "sibling_qid": "MUM-2023-07-0117-Q004", "sibling_text": "ums requirements", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a UMS ship and what does SOLAS require? (Part E, regs 46–53)", "cross_family": false }, { "answer_id": "UMS-310-002", "score": 0.548877477645874, "sibling_score": 0.548877477645874, "answer_score": 0.3525848537683487, "sibling_qid": "KOL-2024-02-0817-Q005", "sibling_text": "additional requirements as per ums", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Additional requirements / precautions for UMS operation", "cross_family": false }, { "answer_id": "OMD-004", "score": 0.4982265830039978, "sibling_score": 0.4982265830039978, "answer_score": null, "sibling_qid": "KOC-2025-01-0524-Q006", "sibling_text": "omd requirements", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What are the OMD requirements? Why is an OMD fitted on the main engine and not the auxiliary, and can the two be interchanged?", "cross_family": false } ] }, { "qid": "KOL-2026-05-0067-Q006", "text": "secondary nox methods , hpscr, lpscr , ammonia slip \n\nDecider", "family": "", "subtopic": "", "tid": "KOL-2026-05-0067", "tray": "new", "candidates": [ { "answer_id": "AV6-P03-04", "score": 0.5901261568069458, "sibling_score": 0.5901261568069458, "answer_score": null, "sibling_qid": "KOL-2023-12-1769-Q004", "sibling_text": "secondary method of nox reduction scr working by product hp lp scr", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "HP SCR versus LP SCR — pre-turbine and post-turbine arrangements", "cross_family": false }, { "answer_id": "AV6-P03-02", "score": 0.5630464553833008, "sibling_score": 0.5630464553833008, "answer_score": 0.41452330350875854, "sibling_qid": "MUM-2025-12-2898-Q002", "sibling_text": "secondary methods to reduce nox reduction explain scr", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SCR for marine NOx control — meaning, working principle, chemistry and system components", "cross_family": false }, { "answer_id": "BDN-001-006", "score": 0.5453302264213562, "sibling_score": 0.5453302264213562, "answer_score": null, "sibling_qid": "KOL-2025-06-0954-Q005", "sibling_text": "bdn 7 nox reduction primary and secondary menthod in scr something about ammonia no idea 8 afs convention 9 breast hook solid floor 10 free surface effect how to reduce", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Compound-record fragment — general BDN reading", "cross_family": false } ] }, { "qid": "KOL-2026-05-0068-Q005", "text": "Shaft generator \n\nDecider", "family": "", "subtopic": "", "tid": "KOL-2026-05-0068", "tray": "new", "candidates": [ { "answer_id": "ALT-GEN-P04-001", "score": 0.5826230049133301, "sibling_score": 0.5826230049133301, "answer_score": 0.38363481163978574, "sibling_qid": "KOL-2021-10-2501-Q005", "sibling_text": "shaft generator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Shaft generator - working and arrangement", "cross_family": false }, { "answer_id": "SHAFT-GEN-001", "score": 0.5826230049133301, "sibling_score": 0.5826230049133301, "answer_score": 0.36210764944553375, "sibling_qid": "KOC-2026-02-1695-Q003", "sibling_text": "shaft generator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Shaft generator — working, arrangement, components and function", "cross_family": false }, { "answer_id": "SHAFT-GEN-003", "score": 0.5242966413497925, "sibling_score": 0.5242966413497925, "answer_score": null, "sibling_qid": "KOC-2026-02-1703-Q003", "sibling_text": "shaft generator limitations", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Limitations, drawbacks and disadvantages of a shaft generator", "cross_family": false } ] }, { "qid": "KOL-2026-05-0068-Q006", "text": "AVR clearance, if clearance zero - reason?", "family": "", "subtopic": "", "tid": "KOL-2026-05-0068", "tray": "new", "candidates": [ { "answer_id": "BCL-592-006", "score": 0.5047566890716553, "sibling_score": 0.5047566890716553, "answer_score": 0.3583771616220474, "sibling_qid": "KOL-2025-10-2021-Q014", "sibling_text": "clearance is coming zero how you will take the vessel to port rest forgot", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bearing clearance is reading zero. How do you get the vessel to port?", "cross_family": false }, { "answer_id": "BRG-NOM-004", "score": 0.4762703776359558, "sibling_score": 0.4762703776359558, "answer_score": null, "sibling_qid": "KOC-2025-10-1946-Q011", "sibling_text": "what happens if clearance increases", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bearing Nip/Crush, Clearance, and How the Shell is Held", "cross_family": false }, { "answer_id": "BCL-592-003", "score": 0.4602576792240143, "sibling_score": 0.4602576792240143, "answer_score": null, "sibling_qid": "KOC-2022-07-0966-Q016", "sibling_text": "what happens if more less clearances", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What are the effects of bearing clearance being too high or too low?", "cross_family": false } ] }, { "qid": "KOL-2026-05-0070-Q001", "text": "Type of vessel", "family": "", "subtopic": "", "tid": "KOL-2026-05-0070", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8009957075119019, "sibling_score": 0.8009957075119019, "answer_score": null, "sibling_qid": "MUM-2026-06-3384-Q001", "sibling_text": "type of vessel", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.7427272200584412, "sibling_score": 0.7427272200584412, "answer_score": 0.4737408459186554, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.7271771430969238, "sibling_score": 0.7271771430969238, "answer_score": null, "sibling_qid": "CHE-2026-02-0481-Q001", "sibling_text": "type of vessels sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false } ] }, { "qid": "KOL-2026-05-0070-Q004", "text": "Type of engine", "family": "", "subtopic": "", "tid": "KOL-2026-05-0070", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.7497999668121338, "sibling_score": 0.7497999668121338, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7431306838989258, "sibling_score": 0.7431306838989258, "answer_score": null, "sibling_qid": "MUM-2026-09-3880-Q001", "sibling_text": "main engine type", "sibling_family": "2-Stroke - Operations & General", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.7421889901161194, "sibling_score": 0.7421889901161194, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false } ] }, { "qid": "KOL-2026-05-0071-Q008", "text": "Current and power factor,reason", "family": "", "subtopic": "", "tid": "KOL-2026-05-0071", "tray": "review", "candidates": [ { "answer_id": "GEN-LSI-B-001", "score": 0.7126190662384033, "sibling_score": 0.7126190662384033, "answer_score": null, "sibling_qid": "KOL-2025-07-2801-Q003", "sibling_text": "same kw diff power factor and different current reason", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01. Two alternators in parallel — same kW but different current and power factor: cause and correction", "cross_family": false }, { "answer_id": "PF-A-004", "score": 0.6842608451843262, "sibling_score": 0.6842608451843262, "answer_score": 0.537232905626297, "sibling_qid": "KOL-2023-07-2666-Q006", "sibling_text": "in your rounds you see low power factor what cud be the reasons", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "The bare 'power factor' prompt — and the drills it triggers", "cross_family": false }, { "answer_id": "PF-A-001", "score": 0.6735736727714539, "sibling_score": 0.6735736727714539, "answer_score": 0.5199421107769012, "sibling_qid": "KOC-2023-05-1257-Q005", "sibling_text": "what is power factor why power factor becomes less", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "What is power factor, and why does it matter on board?", "cross_family": false } ] }, { "qid": "KOL-2026-05-0072-Q001", "text": "Status of written and orals.", "family": "", "subtopic": "", "tid": "KOL-2026-05-0072", "tray": "review", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.7291345596313477, "sibling_score": 0.7291345596313477, "answer_score": null, "sibling_qid": "MUM-2026-03-1294-Q001", "sibling_text": "status of writtens and orals", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.48786336183547974, "sibling_score": 0.48786336183547974, "answer_score": null, "sibling_qid": "MUM-2026-05-2995-Q001", "sibling_text": "written and oral status type of ship and company", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "DUS-P1-02", "score": 0.4700196087360382, "sibling_score": 0.4700196087360382, "answer_score": null, "sibling_qid": "KOL-2025-08-3851-Q006", "sibling_text": "drydock plans rudder checks cross questions what about other written oral exams status told waiting for naval written result to come all other paper cleared", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Plans, drawings and special tools kept ready for drydock — engine-department view", "cross_family": false } ] }, { "qid": "KOL-2026-05-0072-Q004", "text": "Explosion in Main Air Compressor crankcase? Reasons and safeties? (Wants to listen low pressure switch for lube oil)", "family": "", "subtopic": "", "tid": "KOL-2026-05-0072", "tray": "review", "candidates": [ { "answer_id": "REEF-COMP-002", "score": 0.6654890775680542, "sibling_score": 0.6654890775680542, "answer_score": null, "sibling_qid": "KOC-2023-10-1289-Q001", "sibling_text": "how lube oil low pressure trip in refer compressor actives", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Lube-oil low-pressure / differential-pressure trip — how it works, tests and sets", "cross_family": false }, { "answer_id": "REEF-COMP-001", "score": 0.6388368010520935, "sibling_score": 0.6388368010520935, "answer_score": null, "sibling_qid": "MUM-2026-07-3671-Q008", "sibling_text": "safeties on compressor", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Reefer/AC compressor safeties and cut-outs — safety valve, HP and LP cut-outs", "cross_family": false }, { "answer_id": "OMD-001", "score": 0.6382935643196106, "sibling_score": 0.6382935643196106, "answer_score": null, "sibling_qid": "KOC-2026-05-0046-Q010", "sibling_text": "explain crankcase explosion oil mist alarm actions", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "The OMD alarm sounds on your watch. What are your actions, the checks and crankcase inspection that follow, and what are the alarm levels?", "cross_family": false } ] }, { "qid": "KOL-2026-05-0072-Q005", "text": "Is main air compressor crankcase explosion and main engine crankcase explosion same?", "family": "", "subtopic": "", "tid": "KOL-2026-05-0072", "tray": "new", "candidates": [ { "answer_id": "CCE-322-002", "score": 0.6440389752388, "sibling_score": 0.6440389752388, "answer_score": 0.5207526326179505, "sibling_qid": "KOL-2021-02-1578-Q007", "sibling_text": "primary secondary explosion in crankcase", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Primary versus secondary crankcase explosion", "cross_family": false }, { "answer_id": "CCE-322-001", "score": 0.6388849020004272, "sibling_score": 0.6388849020004272, "answer_score": null, "sibling_qid": "CHE-2025-08-0204-Q005", "sibling_text": "crankcase explosion explain", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankcase explosion — how oil mist forms and ignites", "cross_family": false }, { "answer_id": "OMD-001", "score": 0.5748748779296875, "sibling_score": 0.5748748779296875, "answer_score": null, "sibling_qid": "KOC-2026-05-0046-Q010", "sibling_text": "explain crankcase explosion oil mist alarm actions", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "The OMD alarm sounds on your watch. What are your actions, the checks and crankcase inspection that follow, and what are the alarm levels?", "cross_family": false } ] }, { "qid": "KOL-2026-05-0072-Q006", "text": "Gate valve working and number of seats? Seat material?", "family": "", "subtopic": "", "tid": "KOL-2026-05-0072", "tray": "new", "candidates": [ { "answer_id": "GV-330-002", "score": 0.5473569631576538, "sibling_score": 0.5473569631576538, "answer_score": null, "sibling_qid": "KOL-2026-07-4289-Q004", "sibling_text": "gate valve defects and seat repair steps", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Gate valve overhaul, checks & the stuck / not-operating valve", "cross_family": false }, { "answer_id": "GV-330-001", "score": 0.5065598487854004, "sibling_score": 0.5065598487854004, "answer_score": 0.48769754767417905, "sibling_qid": "KOC-2023-12-1311-Q011", "sibling_text": "gate valve draw and explain 6", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Draw and explain the gate valve — construction, main parts, operation & onboard use", "cross_family": false }, { "answer_id": "EXHV-P01-003", "score": 0.4940453857183456, "sibling_score": null, "answer_score": 0.4940453857183456, "sibling_qid": "", "sibling_text": "construction seat geometry and overhaul checks materials heat corrosion resistant spindle nimonic or dura type hard faced seat stellite type water cooled bottom piece representative the maker drawing and current service letters govern the exact material rotation a vane winged wheel turns the spindle a little each cycle even thermal load even wear self cleaning seat the valve is held seated by the ", "sibling_family": "", "via": "answer_title", "answer_title": "Construction, seat geometry and overhaul checks", "cross_family": false } ] }, { "qid": "KOL-2026-05-0073-Q003", "text": "salient pole motor", "family": "", "subtopic": "", "tid": "KOL-2026-05-0073", "tray": "new", "candidates": [ { "answer_id": "SYNC-ASYNC-A-002", "score": 0.6340068578720093, "sibling_score": 0.6340068578720093, "answer_score": 0.47456773221492765, "sibling_qid": "KOL-2025-09-2856-Q004", "sibling_text": "salient pole of synchronous motor and function", "sibling_family": "Electrical - 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Lubrication on 4 stroke engine ?", "family": "", "subtopic": "", "tid": "KOL-2026-05-0075", "tray": "review", "candidates": [ { "answer_id": "CYL-LUB-A-001", "score": 0.6527689099311829, "sibling_score": 0.6527689099311829, "answer_score": null, "sibling_qid": "KOL-2026-10-4324-Q001", "sibling_text": "main engine cylinder oil lubrication", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Cylinder lubrication — how it is carried out and its purpose", "cross_family": false }, { "answer_id": "CYL-LUB-A-003", "score": 0.6409333944320679, "sibling_score": 0.6409333944320679, "answer_score": null, "sibling_qid": "KOL-2019-07-1460-Q002", "sibling_text": "cylinder lubrication of me engine line groove cut or nozzle spray oil tangentially property of cyl oil which make oil perfect for cylinder lubrication", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Lubricator quills — arrangement and oil distribution on the liner", "cross_family": false }, { "answer_id": "LO-TEST-P02-005", "score": 0.6310960054397583, "sibling_score": 0.6310960054397583, "answer_score": null, "sibling_qid": "KOC-2024-01-1829-Q006", "sibling_text": "types of lubrication in engines where lubrication is difficult to achieve", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Types of lubrication; defining a lubricant; lubricity", "cross_family": false } ] }, { "qid": "KOL-2026-05-0075-Q003", "text": "Ogee ring , location and how it is fitted ?", "family": "", "subtopic": "", "tid": "KOL-2026-05-0075", "tray": "new", "candidates": [ { "answer_id": "OGEE-RING-001", "score": 0.5848108530044556, "sibling_score": 0.5848108530044556, "answer_score": 0.40236709713935853, "sibling_qid": "KOL-2026-09-4299-Q004", "sibling_text": "ogee ring location and how it is fitted", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "The ogee ring: what it is, where it sits, its purpose, and how it's formed and connected", "cross_family": false }, { "answer_id": "PRING-CLR-A-001", "score": 0.4540039300918579, "sibling_score": 0.4540039300918579, "answer_score": null, "sibling_qid": "MUM-2026-04-2960-Q003", "sibling_text": "ogee ring", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston-ring types — CPR, POP, the PC ring, and the pinned gap", "cross_family": false }, { "answer_id": "CYL-LINER-P02-009", "score": 0.3075146108865738, "sibling_score": null, "answer_score": 0.3075146108865738, "sibling_qid": "", "sibling_text": "l9 t044 part 02 g009high definition an unworn raised step or ledge in the bore at the top and sometimes bottom limit of ring travel cause the ring does not sweep the extreme top so metal above the top ring reversal point stays unworn while the swept band below wears leaving a ridge worse with heavy wear lower down", "sibling_family": "", "via": "answer_title", "answer_title": "L9 · T044-PART_02-G009High", "cross_family": false } ] }, { "qid": "KOL-2026-05-0076-Q001", "text": "what is cellular container", "family": "", "subtopic": "", "tid": "KOL-2026-05-0076", "tray": "new", "candidates": [ { "answer_id": "KGF-A-004", "score": 0.5742315053939819, "sibling_score": 0.5742315053939819, "answer_score": null, "sibling_qid": "MUM-2026-01-0676-Q003", "sibling_text": "container", "sibling_family": "Electrical - 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Ultrasonic Testing & Thickness Gauging", "cross_family": false }, { "answer_id": "BLR-SURV-P02-004", "score": 0.38887858390808105, "sibling_score": 0.38887858390808105, "answer_score": null, "sibling_qid": "MUM-2026-06-3564-Q002", "sibling_text": "tests on boiler structure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOL-2026-05-0080-Q001", "text": "Tool steel, value of carbon Content in it.", "family": "", "subtopic": "", "tid": "KOL-2026-05-0080", "tray": "review", "candidates": [ { "answer_id": "MATPROP-A-001", "score": 0.6905167698860168, "sibling_score": 0.6905167698860168, "answer_score": 0.46892498433589935, "sibling_qid": "KOL-2026-02-2042-Q002", "sibling_text": "what is tool steel asking about the range of carbon", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Steel types and composition", "cross_family": false }, { "answer_id": "SGB-212-002", "score": 0.5920252799987793, "sibling_score": 0.5920252799987793, "answer_score": null, "sibling_qid": "KOC-2025-07-1043-Q005", "sibling_text": "what is stainless steel and carbon percentage in it", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Stainless steel — composition and the role of Cr, Ni, C", "cross_family": false }, { "answer_id": "STEEL-GR-002", "score": 0.589211106300354, "sibling_score": 0.589211106300354, "answer_score": null, "sibling_qid": "KOC-2022-01-1777-Q009", "sibling_text": "mild steel carbon percentage", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Mild steel — composition, use, and how it differs from cast iron", "cross_family": false } ] }, { "qid": "KOL-2026-05-0080-Q002", "text": "CCU and it's working. ECU - How many present. How signal reaches CCU.", "family": "", "subtopic": "", "tid": "KOL-2026-05-0080", "tray": "new", "candidates": [ { "answer_id": "FIVA-220-003", "score": 0.6119598746299744, "sibling_score": 0.6119598746299744, "answer_score": null, "sibling_qid": "KOL-2026-07-4280-Q003", "sibling_text": "about ecu ccu fiva what signals are sent from ecu to ccu", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "FIVA control signal, controller type, voice-coil drive and fail-safe behaviour", "cross_family": false }, { "answer_id": "EICU-MAN-P01-001", "score": 0.5628052949905396, "sibling_score": 0.5628052949905396, "answer_score": 0.45822470784187314, "sibling_qid": "KOL-2026-07-4246-Q002", "sibling_text": "ecu ccu difference how many ecu why do ccu nd ecu can be interchanged working of ecu and ccu", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "EICU, ECU, CCU, ACU — the ME control units and what is controlled electronically", "cross_family": false }, { "answer_id": "MEB-MEC-P03-002", "score": 0.5553508996963501, "sibling_score": 0.5553508996963501, "answer_score": 0.4093699693679809, "sibling_qid": "KOL-2026-01-4082-Q003", "sibling_text": "ecu from where gets signal", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "ME camless control architecture — ECS, CCU, EICU, MPC", "cross_family": false } ] }, { "qid": "KOL-2026-05-0080-Q004", "text": "FIVA valve working, what constructional replacement has happened in ME Engine due to it.", "family": "", "subtopic": "", "tid": "KOL-2026-05-0080", "tray": "new", "candidates": [ { "answer_id": "FIVA-220-002", "score": 0.5628780722618103, "sibling_score": 0.5628780722618103, "answer_score": null, "sibling_qid": "KOL-2024-03-1773-Q002", "sibling_text": "type of engine worked on working of fiva valve in me c engine fail safe arrangement of fiva valve in me c engine type of action given by fiva valve proportional for fuel and on off for exhaust valve type of controller controlling the fiva valve electro hydraulic solenoid valve and working of that", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "FIVA control of fuel injection — timing, quantity and actuation", "cross_family": false }, { "answer_id": "FIVA-220-001", "score": 0.5617456436157227, "sibling_score": 0.5617456436157227, "answer_score": 0.4500303208827972, "sibling_qid": "KOL-2025-08-2009-Q004", "sibling_text": "fiva valve construction operation", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "FIVA valve — construction, function and basic operation", "cross_family": false }, { "answer_id": "EXV-P02-001", "score": 0.5282605886459351, "sibling_score": 0.5282605886459351, "answer_score": null, "sibling_qid": "KOL-2019-11-3297-Q001", "sibling_text": "what o h u have done on main engine i told exhaust valve full overhauling of exhaust valve and many cross questions", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve overhaul & dismantling — procedure and precautions", "cross_family": false } ] }, { "qid": "KOL-2026-05-0082-Q001", "text": "CSR, what it keeps and why so.", "family": "", "subtopic": "", "tid": "KOL-2026-05-0082", "tray": "new", "candidates": [ { "answer_id": "CSR-585-001", "score": 0.41332578659057617, "sibling_score": 0.41332578659057617, "answer_score": 0.2728885382413864, "sibling_qid": "KOC-2025-11-0718-Q006", "sibling_text": "what is csr", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the Continuous Synopsis Record (CSR)? Explain its purpose and requirements.", "cross_family": false }, { "answer_id": "CERT-LIST-P01-001", "score": 0.40519464015960693, "sibling_score": 0.40519464015960693, "answer_score": null, "sibling_qid": "KOL-2026-01-1159-Q006", "sibling_text": "csr and its forms", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "List the statutory certificates carried onboard a ship.", "cross_family": false }, { "answer_id": "A6-NSEC-003", "score": 0.35702449083328247, "sibling_score": 0.35702449083328247, "answer_score": null, "sibling_qid": "MUM-2025-10-0525-Q001S5", "sibling_text": "scr what is it what all are the records and documents to be kept under this", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "NOx — formation, limits & reduction (SCR / EGR)", "cross_family": false } ] }, { "qid": "KOL-2026-05-0082-Q002", "text": "Rudder inspection in Drydock, How rudder internally coated ,Coating Material.", "family": "", "subtopic": "", "tid": "KOL-2026-05-0082", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.7250680923461914, "sibling_score": 0.7250680923461914, "answer_score": 0.48004252910614015, "sibling_qid": "KOC-2026-04-0916-Q022", "sibling_text": "rudder internal coating", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "HULL-PAINT-002", "score": 0.6318774223327637, "sibling_score": 0.6318774223327637, "answer_score": null, "sibling_qid": "CHE-2026-02-0110-Q012", "sibling_text": "rudder internal painting", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Types of hull coating, the paint scheme by section, and why each is used", "cross_family": false }, { "answer_id": "HULL-PAINT-001", "score": 0.598247230052948, "sibling_score": 0.598247230052948, "answer_score": null, "sibling_qid": "MUM-2026-05-3352-Q008", "sibling_text": "paint scheme in drydock in detail tell about all the coats with thickness", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Preparing the hull surface before painting in dry dock — cleanliness standard and methods", "cross_family": false } ] }, { "qid": "KOL-2026-05-0084-Q001", "text": "Type of ship sailed", "family": "", "subtopic": "", "tid": "KOL-2026-05-0084", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.7957899570465088, "sibling_score": 0.7957899570465088, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7948032021522522, "sibling_score": 0.7948032021522522, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.7495025396347046, "sibling_score": 0.7495025396347046, "answer_score": 0.4696081876754761, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "KOL-2026-05-0084-Q002", "text": "B1 and B2 regulations of BWMS ? 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Statutory", "via": "sibling", "answer_title": "Statutory certificates, surveys & validity (+ stability booklet)", "cross_family": false } ] }, { "qid": "KOL-2026-05-0084-Q003S2", "text": "Procedure and precautions (disconnect AVR) to do field flashing of exciter winding ?", "family": "", "subtopic": "", "tid": "KOL-2026-05-0084", "tray": "review", "candidates": [ { "answer_id": "AVR-EXC-A-001", "score": 0.8574855327606201, "sibling_score": 0.8574855327606201, "answer_score": null, "sibling_qid": "KOL-2026-05-0084-Q012", "sibling_text": "procedure and precautions disconnect avr to do field flashing of exciter winding", "sibling_family": "", "via": "sibling", "answer_title": "What is the purpose and function of the AVR?", "cross_family": false }, { "answer_id": "RES-MAG-004", "score": 0.6553326845169067, "sibling_score": 0.6553326845169067, "answer_score": 0.5302088052034378, "sibling_qid": "CHE-2025-08-0278-Q006", "sibling_text": "field winding flashing procedure", "sibling_family": "Electrical - 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HV hazards, advantages and safeties", "cross_family": false } ] }, { "qid": "KOL-2026-06-0002-Q004", "text": "Why vfd is use in sw not in fresh water", "family": "", "subtopic": "", "tid": "KOL-2026-06-0002", "tray": "new", "candidates": [ { "answer_id": "VFD-INV-P01-002", "score": 0.4839601218700409, "sibling_score": 0.4839601218700409, "answer_score": 0.3647330045700073, "sibling_qid": "KOC-2023-01-1227-Q005", "sibling_text": "vfd where used", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Where is a VFD used onboard, and why?", "cross_family": false }, { "answer_id": "VFD-INV-P01-001", "score": 0.4510714113712311, "sibling_score": 0.4510714113712311, "answer_score": null, "sibling_qid": "KOC-2023-12-1315-Q003", "sibling_text": "vfd with dia uses in ship", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a VFD and what does it do?", "cross_family": false }, { "answer_id": "INV-VFD-P03-002", "score": 0.4267244338989258, "sibling_score": 0.4267244338989258, "answer_score": 0.33118627667427064, "sibling_qid": "KOC-2022-07-1184-Q003", "sibling_text": "vfd how is it different", "sibling_family": "Electrical - 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"qid": "KOL-2026-07-4247-Q001", "text": "Froude number ?", "family": "Ship Construction & Naval Architecture", "subtopic": "", "tid": "KOL-2026-07-4247", "tray": "review", "candidates": [ { "answer_id": "RES-PROP-P01-001", "score": 0.6920254230499268, "sibling_score": 0.6920254230499268, "answer_score": 0.5154186308383941, "sibling_qid": "KOL-2025-09-1048-Q003", "sibling_text": "froudes number", "sibling_family": "", "via": "sibling", "answer_title": "Resistance fundamentals: Froude & Reynolds numbers, boundary layer, frictional resistance", "cross_family": false }, { "answer_id": "RES-PROP-P01-002", "score": 0.4721140772104263, "sibling_score": null, "answer_score": 0.4721140772104263, "sibling_qid": "", "sibling_text": "resistance types and methods of reducing them four components frictional wave making eddy form air residuary wave making eddy the froude scaled part frictional largest single part on most ships 80 slow full 50 fast fine wetted area v", "sibling_family": "", "via": "answer_title", "answer_title": "Resistance types and methods of reducing them", "cross_family": false }, { "answer_id": "RES-PROP-P02-001", "score": 0.4565219938755035, "sibling_score": null, "answer_score": 0.4565219938755035, "sibling_qid": "", "sibling_text": "ship model and towing tests purpose scaling and resistance prediction purpose predict ship resistance and the power ehp curve before build cheaper and surer than a full scale trial tow ageosim geometrically similar model at thecorresponding speed speed over root length equal to the ship so the froude number matches", "sibling_family": "", "via": "answer_title", "answer_title": "Ship model and towing tests — purpose, scaling and resistance prediction", "cross_family": false } ] }, { "qid": "KOL-2026-07-4248-Q003", "text": "Rudder drop in detail?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Drop", "tid": "KOL-2026-07-4248", "tray": "new", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.5153968334197998, "sibling_score": 0.5153968334197998, "answer_score": 0.37563304901123046, "sibling_qid": "KOC-2026-04-0894-Q008", "sibling_text": "what checks at rudder how you measure drop", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "RUD-DROP-003", "score": 0.5072394013404846, "sibling_score": 0.5072394013404846, "answer_score": 0.3234681814908981, "sibling_qid": "CHE-2021-07-0171-Q007", "sibling_text": "rudder drop is more wat actions you take during sailing", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Rudder drop at the limit: the decision", "cross_family": false }, { "answer_id": "PROP-PN-C-002", "score": 0.3104306757450104, "sibling_score": null, "answer_score": 0.3104306757450104, "sibling_qid": "", "sibling_text": "propeller drop measurement and consequences drop aft stern tube bush wear down the propeller weight cantilevers on the aft bush so the shaft sinks as it wears tool the ship s own poker wear down gauge supplied at newbuilding with recorded datum dimensions always use the same tool for comparability", "sibling_family": "", "via": "answer_title", "answer_title": "Propeller drop — measurement and consequences", "cross_family": false } ] }, { "qid": "KOL-2026-07-4248-Q005", "text": "Sea water pipe pressure testing?", "family": "Workshop & Welding", "subtopic": "Pipe Fabrication", "tid": "KOL-2026-07-4248", "tray": "review", "candidates": [ { "answer_id": "PIPEFAB-009", "score": 0.6987670063972473, "sibling_score": 0.6987670063972473, "answer_score": null, "sibling_qid": "KOC-2022-11-1796-Q006", "sibling_text": "sea water pipe leaking what action as 2nd engr no cold and no hot work", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "A seawater or fire line is leaking / thinned down — action as 2/E, valve not holding, no hot work possible", "cross_family": false }, { "answer_id": "PIPE-MAT-001", "score": 0.6918070912361145, "sibling_score": 0.6918070912361145, "answer_score": null, "sibling_qid": "CHE-2025-09-0441-Q007", "sibling_text": "how to order pipe for sea water system", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Ordering / specifying a replacement or sea-water pipe", "cross_family": false }, { "answer_id": "PIPEFAB-001", "score": 0.6691356301307678, "sibling_score": 0.6691356301307678, "answer_score": null, "sibling_qid": "MUM-2026-03-2640-Q002", "sibling_text": "how to fabricate a new sea water pipe line", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "A damaged pipe has been removed — fabricate the new one: profiling an uneven/bent section and the instructions you give the 3/E or fitter", "cross_family": false } ] }, { "qid": "KOL-2026-07-4249-Q001", "text": "Status of written Which attempt Why not consistent", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOL-2026-07-4249", "tray": "new", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.5316981673240662, "sibling_score": 0.5316981673240662, "answer_score": null, "sibling_qid": "MUM-2026-03-1294-Q001", "sibling_text": "status of writtens and orals", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": false }, { "answer_id": "DAM-STAB-P03-002", "score": 0.4567674994468689, "sibling_score": 0.4567674994468689, "answer_score": null, "sibling_qid": "KOL-2024-03-0825-Q005", "sibling_text": "damaged stability criteria again wasn t satisfied", "sibling_family": "", "via": "sibling", "answer_title": "General cargo-ship damage stability criteria and requirements", "cross_family": false }, { "answer_id": "DS-BASIC-P01-001", "score": 0.44100695848464966, "sibling_score": 0.44100695848464966, "answer_score": 0.27186041474342343, "sibling_qid": "KOL-2019-07-0301-Q003", "sibling_text": "damage stability will not agree", "sibling_family": "", "via": "sibling", "answer_title": "Damage stability: definition, meaning and oral overview", "cross_family": false } ] }, { "qid": "KOL-2026-07-4249-Q003", "text": "S/G why restriction 35 to 35 only ?", "family": "Steering Gear & Hydraulics", "subtopic": "Steering Gear System", "tid": "KOL-2026-07-4249", "tray": "new", "candidates": [ { "answer_id": "VIT-MECH-B-001", "score": 0.4187127947807312, "sibling_score": 0.4187127947807312, "answer_score": null, "sibling_qid": "KOL-2017-09-1325-Q006", "sibling_text": "vit set points why it is restricted to 40 some more cross", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "The VIT / Super VIT curve — breakpoint, range and load-dependent advance/retard", "cross_family": true }, { "answer_id": "SG-055-B-003", "score": 0.39199361205101013, "sibling_score": 0.39199361205101013, "answer_score": null, "sibling_qid": "MUM-2026-07-3808-Q001", "sibling_text": "50 redundancy of s g", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Redundancy and the single-failure requirement (50% / 100%)", "cross_family": false }, { "answer_id": "SOX-LIMIT-001", "score": 0.3648611307144165, "sibling_score": 0.3648611307144165, "answer_score": null, "sibling_qid": "KOL-2026-02-1188-Q005", "sibling_text": "sox limitation", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "MARPOL Annex VI sulphur limits — the 2020 global cap", "cross_family": true } ] }, { "qid": "KOL-2026-07-4249-Q004", "text": "What is boiler blowdon effect?", "family": "Boilers - Operations & Firing", "subtopic": "Boiler Operations", "tid": "KOL-2026-07-4249", "tray": "review", "candidates": [ { "answer_id": "SBD-002", "score": 0.6690580248832703, "sibling_score": 0.6690580248832703, "answer_score": null, "sibling_qid": "KOL-2021-01-1572-Q004", "sibling_text": "boiler blowdown effect", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "What is scum blow down and bottom blow down — why and when, the valve opening sequence, and what you check afterwards? How do you instruct the junior engineer or TME?", "cross_family": false }, { "answer_id": "BBF-621-001", "score": 0.6472256183624268, "sibling_score": 0.6472256183624268, "answer_score": 0.48239465355873107, "sibling_qid": "KOC-2023-02-0923-Q007", "sibling_text": "boiler blowback explanation reasons", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "What is boiler backfire / blowback? Explain the furnace event, the reasons, and how you prevent it.", "cross_family": false }, { "answer_id": "BFS-257-006", "score": 0.6350148320198059, "sibling_score": 0.6350148320198059, "answer_score": 0.4710931986570358, "sibling_qid": "CHE-2026-02-0483-Q001", "sibling_text": "boiler blow back", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler backfire / blowback / panting — causes, prevention, actions", "cross_family": false } ] }, { "qid": "KOL-2026-07-4249-Q005", "text": "Principle of reversing inter lock, working , checks ?", "family": "2-Stroke - Reversing & Maneuvering", "subtopic": "", "tid": "KOL-2026-07-4249", "tray": "new", "candidates": [ { "answer_id": "EICU-MAN-P02-004", "score": 0.6033987402915955, "sibling_score": 0.6033987402915955, "answer_score": 0.4068365186452865, "sibling_qid": "KOL-2026-01-2034-Q005", "sibling_text": "me interlocks", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Main-engine manoeuvring interlocks and the running-direction interlock", "cross_family": false }, { "answer_id": "REV-PROC-001", "score": 0.5813606381416321, "sibling_score": 0.5813606381416321, "answer_score": null, "sibling_qid": "CHE-2025-11-0223-Q003", "sibling_text": "how reversing is done", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Reversing a reversible two-stroke main engine — the principle", "cross_family": false }, { "answer_id": "ILK-318-001", "score": 0.5538464784622192, "sibling_score": 0.5538464784622192, "answer_score": null, "sibling_qid": "KOC-2026-01-1091-Q008", "sibling_text": "me interlocks", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "1. What are the main engine interlocks?", "cross_family": true } ] }, { "qid": "KOL-2026-07-4249-Q009", "text": "Ows oil sensing probe working/", "family": "MARPOL - Annex I (Oil)", "subtopic": "", "tid": "KOL-2026-07-4249", "tray": "review", "candidates": [ { "answer_id": "OWS-15PPM-003", "score": 0.7197282314300537, "sibling_score": 0.7197282314300537, "answer_score": null, "sibling_qid": "MUM-2026-02-1954-Q003", "sibling_text": "what sensor in ows oil detection", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "TPL-SENS-B-002", "score": 0.6548494100570679, "sibling_score": 0.6548494100570679, "answer_score": null, "sibling_qid": "KOL-2025-12-2940-Q009", "sibling_text": "which sensor is used in ows for oil discharge from ows", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Sensors, transducers & transmitters — and why 4–20 mA", "cross_family": true }, { "answer_id": "OMD-001", "score": 0.5909043550491333, "sibling_score": 0.5909043550491333, "answer_score": null, "sibling_qid": "MUM-2026-01-0701-Q008", "sibling_text": "oil mist detector omd working", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "The OMD alarm sounds on your watch. What are your actions, the checks and crankcase inspection that follow, and what are the alarm levels?", "cross_family": true } ] }, { "qid": "KOL-2026-07-4250-Q003", "text": "Moving iron coil construction ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Galvanometer / Multimeter / Clamp Meter", "tid": "KOL-2026-07-4250", "tray": "review", "candidates": [ { "answer_id": "XFMR-THY-D-001", "score": 0.6642434597015381, "sibling_score": 0.6642434597015381, "answer_score": null, "sibling_qid": "KOL-2021-09-2491-Q004", "sibling_text": "construction of transformer core", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Transformer — principle and working", "cross_family": false }, { "answer_id": "FAR-EMI-004", "score": 0.6435330510139465, "sibling_score": 0.6435330510139465, "answer_score": 0.46523740887641907, "sibling_qid": "KOC-2024-03-0310-Q014", "sibling_text": "induction coil", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is an induction coil?", "cross_family": false }, { "answer_id": "ELEC-ELX-008", "score": 0.6048725247383118, "sibling_score": 0.6048725247383118, "answer_score": null, "sibling_qid": "KOL-2020-11-2410-Q002", "sibling_text": "draw solenoid", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Solenoid — construction and operating principle", "cross_family": false } ] }, { "qid": "KOL-2026-07-4250-Q004", "text": "Droop, calculation?", "family": "Electrical - Generator & Alternator", "subtopic": "Voltage Dip / Droop", "tid": "KOL-2026-07-4250", "tray": "new", "candidates": [ { "answer_id": "DROOP-001", "score": 0.594545841217041, "sibling_score": 0.594545841217041, "answer_score": 0.35488684624433514, "sibling_qid": "KOL-2021-07-2462-Q003", "sibling_text": "droop formula to calculate explain", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Governor / speed droop — what, why, setting and formula", "cross_family": true }, { "answer_id": "AVRD-618-001", "score": 0.5798813104629517, "sibling_score": 0.5798813104629517, "answer_score": null, "sibling_qid": "KOC-2022-08-1191-Q007", "sibling_text": "avr droop", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "What is AVR droop, and why is it required?", "cross_family": false }, { "answer_id": "INCL-EXP-D-001", "score": 0.38197625130414964, "sibling_score": null, "answer_score": 0.38197625130414964, "sibling_qid": "", "sibling_text": "finding gm then kg and the centre of gravity measured inputs known weightw shift distanced displacementwat the as inclined draught and heel angle from the pendulum tan deflection pendulum length the weight shift moves g horizontally gg w d w", "sibling_family": "", "via": "answer_title", "answer_title": "Finding GM — then KG and the centre of gravity", "cross_family": false } ] }, { "qid": "KOL-2026-07-4251-Q005", "text": "Checks on exhaust valve. Decider question", "family": "2-Stroke - Exhaust, Valve & Starting Air", "subtopic": "Exhaust Valve", "tid": "KOL-2026-07-4251", "tray": "review", "candidates": [ { "answer_id": "EXV-P02-001", "score": 0.7216684222221375, "sibling_score": 0.7216684222221375, "answer_score": null, "sibling_qid": "MUM-2026-09-3933-Q004", "sibling_text": "how will you check whether the exhaust valve is opening and closing", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve overhaul & dismantling — procedure and precautions", "cross_family": false }, { "answer_id": "EXHV-297-002", "score": 0.714379608631134, "sibling_score": 0.714379608631134, "answer_score": null, "sibling_qid": "MUM-2025-03-0242-Q005", "sibling_text": "exhaust valve actuator checks", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Actuator parts, throttle/damper, air-spring failure & back-up", "cross_family": false }, { "answer_id": "EXHV-P03-002", "score": 0.7125576734542847, "sibling_score": 0.7125576734542847, "answer_score": null, "sibling_qid": "CHE-2025-09-0442-Q006", "sibling_text": "checks do in exhaust valve deciding what all can be checked from draw card by looking draw card how u know exhaust valve is leaking what is rate shaping method what is the interlock for rate shaping method to inject fuel", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Leaking exhaust valve — indications, the draw card, and immediate action", "cross_family": false } ] }, { "qid": "KOL-2026-07-4252-Q005", "text": "Type of engine?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOL-2026-07-4252", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.7998000383377075, "sibling_score": 0.7998000383377075, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.7921890616416931, "sibling_score": 0.7921890616416931, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-001", "score": 0.45207613110542294, "sibling_score": null, "answer_score": 0.45207613110542294, "sibling_qid": "", "sibling_text": "1 turbocharger type main engine vs generator engine compressor is centrifugal in both cases only the turbine type differs large slow speed main engine axial flow turbine single stage constant pressure system", "sibling_family": "", "via": "answer_title", "answer_title": "1. Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "KOL-2026-07-4254-Q002", "text": "what is the doping in a diode?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Zener / Diode / Rectifier", "tid": "KOL-2026-07-4254", "tray": "new", "candidates": [ { "answer_id": "DSC-001", "score": 0.6252756714820862, "sibling_score": 0.6252756714820862, "answer_score": 0.4945990413427353, "sibling_qid": "MUM-2025-07-1561-Q002", "sibling_text": "2 dopping in semiconductor", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is doping, why is it needed, and what materials are used?", "cross_family": false }, { "answer_id": "SCR-306-B-001", "score": 0.6046329736709595, "sibling_score": 0.6046329736709595, "answer_score": null, "sibling_qid": "KOL-2021-05-3403-Q006", "sibling_text": "semi conductors doping what materials npn and pnp diff thyristor applications", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Thyristor / SCR vs other semiconductor devices", "cross_family": false }, { "answer_id": "DSC-004", "score": 0.5618909001350403, "sibling_score": 0.5618909001350403, "answer_score": null, "sibling_qid": "KOL-2023-05-2654-Q004", "sibling_text": "normal diode how developed minority and majority carrier", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a PN junction, what are majority and minority carriers, and what is breakdown voltage?", "cross_family": false } ] }, { "qid": "KOL-2026-07-4254-Q006", "text": "what will happen if three phases are shorted in running generator ?", "family": "Electrical - Generator & Alternator", "subtopic": "Generator Hot / Trip", "tid": "KOL-2026-07-4254", "tray": "new", "candidates": [ { "answer_id": "DIODESO-001", "score": 0.6494420170783997, "sibling_score": 0.6494420170783997, "answer_score": null, "sibling_qid": "MUM-2025-09-1640-Q001", "sibling_text": "two gen running and suddenly one diode open ckt short ckt", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Two alternators in parallel — one rotating rectifier diode goes short circuit. What happens, what if it goes open instead, and how do you know which it is?", "cross_family": false }, { "answer_id": "SYNC-D-001", "score": 0.6227931976318359, "sibling_score": 0.6227931976318359, "answer_score": null, "sibling_qid": "MUM-2023-03-1381-Q002", "sibling_text": "what happens when u close d circuit breaker of a generator whose voltage is not in phase", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Closing the breaker out of phase — wrong-synchronizing consequences", "cross_family": false }, { "answer_id": "NO-VOLT-001", "score": 0.6125048995018005, "sibling_score": 0.6125048995018005, "answer_score": null, "sibling_qid": "MUM-2025-05-1501-Q002", "sibling_text": "3e started the generator voltage not coming actions as 2e", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "The 3/E reports the generator has started but no voltage is showing — reasons, and your actions as 2/E", "cross_family": false } ] }, { "qid": "KOL-2026-07-4254-Q010", "text": "emergency lighting regulations?", "family": "SOLAS - General", "subtopic": "", "tid": "KOL-2026-07-4254", "tray": "review", "candidates": [ { "answer_id": "LT-SRC-002", "score": 0.8258252739906311, "sibling_score": 0.8258252739906311, "answer_score": 0.5597542464733124, "sibling_qid": "MUM-2026-07-3710-Q010", "sibling_text": "emergency lighting regulations", "sibling_family": "SOLAS - General", "via": "sibling", "answer_title": "Where is emergency lighting required, and what does SOLAS demand?", "cross_family": false }, { "answer_id": "LSA-CODE-BF044-004", "score": 0.6666979789733887, "sibling_score": 0.6666979789733887, "answer_score": null, "sibling_qid": "MUM-2026-01-0726-Q006", "sibling_text": "low location lighting regulations", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "What is the regulation for the use of the emergency escape route and escape appliances?", "cross_family": true }, { "answer_id": "LT-SRC-012", "score": 0.6575371623039246, "sibling_score": 0.6575371623039246, "answer_score": null, "sibling_qid": "MUM-2017-01-1322-Q006", "sibling_text": "specific location and requirement of such lighting", "sibling_family": "", "via": "sibling", "answer_title": "General lighting-source residual: multi-lamp wiring, location & emergency-source SOLAS", "cross_family": false } ] }, { "qid": "KOL-2026-07-4255-Q003", "text": "flywheel teeth broken what will happen and what u will do?", "family": "Diesel Engines - General", "subtopic": "", "tid": "KOL-2026-07-4255", "tray": "review", "candidates": [ { "answer_id": "PROP-RP-004", "score": 0.7572335004806519, "sibling_score": 0.7572335004806519, "answer_score": null, "sibling_qid": "KOL-2026-07-4258-Q006", "sibling_text": "flywheel 2 teeth broken what will happen", "sibling_family": "Diesel Engines - General", "via": "sibling", "answer_title": "Blade damage, repair zones, polishing and balancing", "cross_family": false }, { "answer_id": "TG-MOTOR-006", "score": 0.5437612533569336, "sibling_score": 0.5437612533569336, "answer_score": 0.4271460235118866, "sibling_qid": "CHE-2026-04-0501-Q001", "sibling_text": "if tg motor burnt how you will remove tg out of flywheel", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "The turning gear motor is burnt or stuck during engine preparation. How do you operate the turning gear in an emergency and get it out of the flywheel?", "cross_family": true }, { "answer_id": "CRKPIN-P02-003", "score": 0.542401909828186, "sibling_score": 0.542401909828186, "answer_score": 0.44857494831085204, "sibling_qid": "KOL-2021-05-3405-Q001", "sibling_text": "crank pin damaged beyond repair action", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankpin or bearing beyond repair / no spare — casualty action", "cross_family": true } ] }, { "qid": "KOL-2026-07-4255-Q005", "text": "priming and foaming in boiler what u wish do?", "family": "Boilers - Operations & Firing", "subtopic": "Scum / Blow Down", "tid": "KOL-2026-07-4255", "tray": "new", "candidates": [ { "answer_id": "UPT-FIRE-001", "score": 0.6006795763969421, "sibling_score": 0.6006795763969421, "answer_score": null, "sibling_qid": "KOL-2019-11-3288-Q002", "sibling_text": "actions as 2 e on boiler uptake fire", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "The 4/E reports an uptake fire — your actions as 2/E", "cross_family": false }, { "answer_id": "BFS-257-008", "score": 0.5998724102973938, "sibling_score": 0.5998724102973938, "answer_score": null, "sibling_qid": "CHE-2026-05-0601-Q011", "sibling_text": "how to blow down boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler / EGB soot-blowing — procedure, precautions, sequence", "cross_family": false }, { "answer_id": "BLR-OPS-007", "score": 0.5972604155540466, "sibling_score": 0.5972604155540466, "answer_score": null, "sibling_qid": "MUM-2026-06-3587-Q004", "sibling_text": "manual firing of boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Explain the firing sequence of an automatically fired boiler.", "cross_family": false } ] }, { "qid": "KOL-2026-07-4255-Q007", "text": "what is teu in container ship?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2026-07-4255", "tray": "new", "candidates": [ { "answer_id": "DB-TORBOX-B-003", "score": 0.6196882724761963, "sibling_score": 0.6196882724761963, "answer_score": null, "sibling_qid": "CHE-2026-04-0150-Q001", "sibling_text": "type of ship sailed container", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "What is a torsion box — definition and construction", "cross_family": false }, { "answer_id": "TONN-007", "score": 0.5907908082008362, "sibling_score": 0.5907908082008362, "answer_score": null, "sibling_qid": "KOL-2018-07-3964-Q002", "sibling_text": "what is a container standard dimension of container how canal dues charged on basis of teu or gt", "sibling_family": "", "via": "sibling", "answer_title": "Differentiate GT, NT, GRT/NRT, DWT, Lightweight and Displacement", "cross_family": false }, { "answer_id": "SOLAS12-BC-B-001", "score": 0.5830188393592834, "sibling_score": 0.5830188393592834, "answer_score": null, "sibling_qid": "MUM-2026-06-3622-Q001", "sibling_text": "type of ship container and bulk safety", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Additional safety measures for bulk carriers (SOLAS Chapter XII)", "cross_family": false } ] }, { "qid": "KOL-2026-07-4256-Q001", "text": "ME T/C Blower washing procedure?", "family": "Turbocharger", "subtopic": "Overhaul / Maintenance / Water Washing / Clearances", "tid": "KOL-2026-07-4256", "tray": "new", "candidates": [ { "answer_id": "COT-P02-07", "score": 0.6204783916473389, "sibling_score": 0.6204783916473389, "answer_score": 0.45662403106689453, "sibling_qid": "MUM-2025-05-0270-Q004", "sibling_text": "procedure for washing ig blower explain step by step", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Describe the safe washing, stopping and maintenance procedures for an inert-gas blower/fan.", "cross_family": true }, { "answer_id": "TC-WASH-001", "score": 0.5939432978630066, "sibling_score": 0.5939432978630066, "answer_score": null, "sibling_qid": "KOL-2019-03-3220-Q003", "sibling_text": "me tc wet washing procedure", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "01. How is turbocharger wet / water washing carried out (ME or AE)?", "cross_family": false }, { "answer_id": "TC-WASH-003", "score": 0.5453559756278992, "sibling_score": 0.5453559756278992, "answer_score": 0.4174497291445732, "sibling_qid": "KOL-2018-09-3186-Q003", "sibling_text": "me turbocharger washing procedure both dry and wet", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "03. Explain wet washing and dry / grit washing of a turbocharger — method and precautions.", "cross_family": false } ] }, { "qid": "KOL-2026-07-4257-Q001", "text": "Written status?", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOL-2026-07-4257", "tray": "review", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.6558264493942261, "sibling_score": 0.6558264493942261, "answer_score": null, "sibling_qid": "MUM-2026-03-1294-Q001", "sibling_text": "status of writtens and orals", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.5298769474029541, "sibling_score": 0.5298769474029541, "answer_score": null, "sibling_qid": "KOC-2026-08-2106-Q001", "sibling_text": "status of written oral company type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": true }, { "answer_id": "FLAG-ST-001", "score": 0.503226637840271, "sibling_score": 0.503226637840271, "answer_score": null, "sibling_qid": "KOL-2025-08-1003-Q005", "sibling_text": "flag state", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Flag State — authority, role, duties and requirements", "cross_family": true } ] }, { "qid": "KOL-2026-07-4257-Q002", "text": "Which type of ship , type of cargo loaded, engine type,stroke of ur engine ?", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "KOL-2026-07-4257", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.7294943332672119, "sibling_score": 0.7294943332672119, "answer_score": null, "sibling_qid": "CHE-2026-04-0373-Q001S6", "sibling_text": "type of ship specification of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "SOLAS12-BC-A-001", "score": 0.7026278376579285, "sibling_score": 0.7026278376579285, "answer_score": null, "sibling_qid": "MUM-2026-06-3382-Q001", "sibling_text": "type of ship sailed bulk carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "SOLAS definition and scope of a bulk carrier", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.7012166380882263, "sibling_score": 0.7012166380882263, "answer_score": null, "sibling_qid": "MUM-2026-07-3668-Q004", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false } ] }, { "qid": "KOL-2026-07-4257-Q003", "text": "which function?", "family": "Status & Introduction", "subtopic": "", "tid": "KOL-2026-07-4257", "tray": "review", "candidates": [ { "answer_id": "IMO-CODES-P03-002", "score": 0.8088463544845581, "sibling_score": 0.8088463544845581, "answer_score": null, "sibling_qid": "MUM-2026-03-0815-Q003", "sibling_text": "which function", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": true }, { "answer_id": "AVR-EXC-A-001", "score": 0.5549893379211426, "sibling_score": 0.5549893379211426, "answer_score": null, "sibling_qid": "CHE-2026-02-0332-Q009", "sibling_text": "avr function", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "What is the purpose and function of the AVR?", "cross_family": true }, { "answer_id": "CHK-330-001", "score": 0.5541940927505493, "sibling_score": 0.5541940927505493, "answer_score": null, "sibling_qid": "KOC-2022-05-1785-Q007", "sibling_text": "function of chock", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What is the purpose and function of main engine chocks?", "cross_family": true } ] }, { "qid": "KOL-2026-07-4257-Q006", "text": "External equaliser txv details?", "family": "air", "subtopic": "PT / CT", "tid": "KOL-2026-07-4257", "tray": "review", "candidates": [ { "answer_id": "TEV-TXV-003", "score": 0.7533555030822754, "sibling_score": 0.7533555030822754, "answer_score": 0.36349933743476864, "sibling_qid": "MUM-2026-07-3707-Q004", "sibling_text": "external equaliser txv details", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Equalizing line — internal vs external equalized TEV", "cross_family": true }, { "answer_id": "EQ-LINE-002", "score": 0.5231195092201233, "sibling_score": 0.5231195092201233, "answer_score": 0.3549671486020088, "sibling_qid": "MUM-2026-05-3209-Q003", "sibling_text": "external equalising line in refer where is it mounted", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Where the equalising line is used and connected in a refrigeration plant", "cross_family": true }, { "answer_id": "TEV-TXV-002", "score": 0.4784628748893738, "sibling_score": 0.4784628748893738, "answer_score": 0.3089805215597153, "sibling_qid": "MUM-2026-02-2926-Q002", "sibling_text": "tev connection equalising line purpose", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "TEV / TXV — purpose, construction, location and working", "cross_family": true } ] }, { "qid": "KOL-2026-07-4258-Q001", "text": "About ship and engine which I sailed", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "KOL-2026-07-4258", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P01-001", "score": 0.7604628801345825, "sibling_score": 0.7604628801345825, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q001", "sibling_text": "type of ship sailed and engines details", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7545717358589172, "sibling_score": 0.7545717358589172, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "PERF-470-004", "score": 0.4833175480365753, "sibling_score": null, "answer_score": 0.4833175480365753, "sibling_qid": "", "sibling_text": "your ship s main engine specifications mean piston speed calculation and significance state your own ship s specs from the project guide shop trial and say that is the source mean piston speed 2ln 60 l in metres n rpm metres per second", "sibling_family": "", "via": "answer_title", "answer_title": "Your ship's main-engine specifications — mean piston speed, calculation and significance", "cross_family": false } ] }, { "qid": "KOL-2026-07-4258-Q003", "text": "Priming and foaming?", "family": "Boilers - Operations & Firing", "subtopic": "Scum / Blow Down", "tid": "KOL-2026-07-4258", "tray": "new", "candidates": [ { "answer_id": "FOAM-SYS-P04-003", "score": 0.5400230884552002, "sibling_score": 0.5400230884552002, "answer_score": 0.40107324123382565, "sibling_qid": "CHE-2026-03-0128-Q004", "sibling_text": "how foam generated", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "2. How mechanical foam is produced", "cross_family": true }, { "answer_id": "FOAM-SYS-P06-002", "score": 0.5368542075157166, "sibling_score": 0.5368542075157166, "answer_score": null, "sibling_qid": "CHE-2026-08-3878-Q006", "sibling_text": "foam maintenance", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "2. Maintenance routines — fixed foam system & concentrate", "cross_family": true }, { "answer_id": "FOAM-SYS-P05-005", "score": 0.5158803462982178, "sibling_score": 0.5158803462982178, "answer_score": null, "sibling_qid": "KOL-2024-12-0900-Q006", "sibling_text": "responsibility for expansion of foam and type of foam", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "5. Foam types carried onboard and how the correct foam is selected", "cross_family": true } ] }, { "qid": "KOL-2026-07-4260-Q001", "text": "W-mip? 2 difference between swilrl and squish with respect to combination space?", "family": "Ship Construction & Stability", "subtopic": "Stern Frame / Transom", "tid": "KOL-2026-07-4260", "tray": "new", "candidates": [ { "answer_id": "TONN-004", "score": 0.48009392619132996, "sibling_score": 0.48009392619132996, "answer_score": null, "sibling_qid": "KOL-2026-06-0001-Q007S2", "sibling_text": "difference between dwt lightweight", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Lightweight / Lightship Weight", "cross_family": false }, { "answer_id": "A6-NSEC-005", "score": 0.4389793872833252, "sibling_score": 0.4389793872833252, "answer_score": null, "sibling_qid": "MUM-2024-11-2777-Q008", "sibling_text": "diff between seemp 2 3", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP — Part I, II & III", "cross_family": true }, { "answer_id": "OWS-15PPM-006", "score": 0.4267222583293915, "sibling_score": 0.4267222583293915, "answer_score": null, "sibling_qid": "KOC-2022-02-1172-Q010", "sibling_text": "odme diff bw both", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": true } ] }, { "qid": "KOL-2026-07-4260-Q003", "text": "one unit jacket water temperature is reduced reason?", "family": "2-Stroke - Operations & Casualty", "subtopic": "", "tid": "KOL-2026-07-4260", "tray": "new", "candidates": [ { "answer_id": "JCW-SYS-003", "score": 0.6241675615310669, "sibling_score": 0.6241675615310669, "answer_score": 0.5387111276388168, "sibling_qid": "MUM-2026-06-3505-Q005", "sibling_text": "jcw temp increase for all units reason", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "ME jacket-water temperature is rising on all units and will not hold setpoint - reasons, your actions as 2/E, and telling which side of the cooler is leaking", "cross_family": true }, { "answer_id": "CPP-POL-02", "score": 0.6079773902893066, "sibling_score": 0.6079773902893066, "answer_score": null, "sibling_qid": "KOL-2026-07-4275-Q006", "sibling_text": "one unit exhaust temperature low reason", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "One main-engine cylinder has a low exhaust temperature — what are the causes and checks?", "cross_family": true }, { "answer_id": "EGTP-P02-007", "score": 0.5938014984130859, "sibling_score": 0.5938014984130859, "answer_score": null, "sibling_qid": "MUM-2026-07-3794-Q002", "sibling_text": "one unit temp high reasons", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "High Exhaust Temperature — One Unit vs All Units", "cross_family": true } ] }, { "qid": "KOL-2026-07-4261-Q003", "text": "Angle encoder, full working, location?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Angle Encoder", "tid": "KOL-2026-07-4261", "tray": "review", "candidates": [ { "answer_id": "ANG-ENC-003", "score": 0.891062319278717, "sibling_score": 0.891062319278717, "answer_score": 0.42685308456420895, "sibling_qid": "MUM-2026-07-3713-Q003", "sibling_text": "angle encoder full working location", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Working principle: sensing crank angle, speed and direction", "cross_family": false }, { "answer_id": "ANG-ENC-002", "score": 0.7325482368469238, "sibling_score": 0.7325482368469238, "answer_score": 0.45223207473754884, "sibling_qid": "KOL-2025-10-4064-Q013", "sibling_text": "position of angle encoder and xxx", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Arrangement, location, types and main components", "cross_family": false }, { "answer_id": "ANG-ENC-004", "score": 0.7136867046356201, "sibling_score": 0.7136867046356201, "answer_score": null, "sibling_qid": "MUM-2026-07-3763-Q007", "sibling_text": "angle encoder setting", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Checks, testing, calibration and maintenance", "cross_family": false } ] }, { "qid": "KOL-2026-07-4262-Q001", "text": "Status of written and which engine i worked on", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOL-2026-07-4262", "tray": "new", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.5862195491790771, "sibling_score": 0.5862195491790771, "answer_score": null, "sibling_qid": "KOC-2026-05-0045-Q002", "sibling_text": "whether done me engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": true }, { "answer_id": "MCC-MEB-P02-001", "score": 0.5292249321937561, "sibling_score": 0.5292249321937561, "answer_score": null, "sibling_qid": "MUM-2026-07-3762-Q017", "sibling_text": "development on me engines", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Trace the development from MC / SMC engines to MC-C and ME engines", "cross_family": true }, { "answer_id": "ENG-NOM-006", "score": 0.5195671319961548, "sibling_score": 0.5195671319961548, "answer_score": null, "sibling_qid": "CHE-2026-05-0585-Q001", "sibling_text": "main engine specification complete", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Short-form asks: SMC-C, LMC, and ME vs MC quickly", "cross_family": true } ] }, { "qid": "KOL-2026-07-4262-Q002", "text": "Comfort temperature in air conditioning,relative humidity?", "family": "Refrigeration & AC", "subtopic": "Comfort Zone", "tid": "KOL-2026-07-4262", "tray": "review", "candidates": [ { "answer_id": "CFZ-330-001", "score": 0.879420280456543, "sibling_score": 0.879420280456543, "answer_score": 0.5771689146757125, "sibling_qid": "MUM-2026-07-3712-Q002", "sibling_text": "comfort temperature in air conditioning relative humidity", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Define the comfort zone and state its parameters and ranges", "cross_family": false }, { "answer_id": "CFZ-330-004", "score": 0.8336563110351562, "sibling_score": 0.8336563110351562, "answer_score": 0.5991456687450408, "sibling_qid": "KOL-2019-10-3284-Q002", "sibling_text": "2 air condition relative humidity 70 and temperature 30 degree how to make it in comfort zone", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "AHU, relative humidity and psychrometric adjustment — bringing 30 °C / 70% air into the comfort zone; sweating and cooler drain water", "cross_family": false }, { "answer_id": "HUM-334-001", "score": 0.7553730607032776, "sibling_score": 0.7553730607032776, "answer_score": 0.5218182981014251, "sibling_qid": "KOL-2018-08-1861-Q011", "sibling_text": "what is relative humidity how air conditioning is maintaining this relative humidity neeraj kumar paul and sinha", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "How is humidity controlled in a ship air-conditioning plant / accommodation AC?", "cross_family": false } ] }, { "qid": "KOL-2026-07-4262-Q003", "text": "while running lubrication failure what will happen for ME (want to know how the fuel cut off by auto)?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Cut-off Slide", "tid": "KOL-2026-07-4262", "tray": "new", "candidates": [ { "answer_id": "COS343-002", "score": 0.6477875113487244, "sibling_score": 0.6477875113487244, "answer_score": null, "sibling_qid": "KOL-2026-07-4265-Q009", "sibling_text": "fuel pump cut off", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How do you cut off / cut out one main-engine fuel pump (unit)?", "cross_family": false }, { "answer_id": "COS343-004", "score": 0.642296314239502, "sibling_score": 0.642296314239502, "answer_score": 0.4629412680864334, "sibling_qid": "KOC-2026-05-0037-Q005", "sibling_text": "fuel pump cut off when and how u will do", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "When — and how — will you cut off a fuel pump while at sea?", "cross_family": false }, { "answer_id": "VIT-MECH-C-001", "score": 0.6211915612220764, "sibling_score": 0.6211915612220764, "answer_score": null, "sibling_qid": "CHE-2025-10-0515-Q002", "sibling_text": "when you cutoff fuel in particular unit vit you need to do some precautions what manual says did you read manual", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "MAN B&W MC VIT — varying the start of injection on a helix pump", "cross_family": false } ] }, { "qid": "KOL-2026-07-4263-Q004", "text": "D1, D2, B1 & B2?", "family": "Other Conventions", "subtopic": "", "tid": "KOL-2026-07-4263", "tray": "review", "candidates": [ { "answer_id": "BWM-D1D2-P02-001", "score": 0.6786643862724304, "sibling_score": 0.6786643862724304, "answer_score": null, "sibling_qid": "KOL-2025-09-1085-Q006", "sibling_text": "bwm d1 d2", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Regulation D-1 — ballast water exchange standard and the accepted methods", "cross_family": false }, { "answer_id": "BWMS-A-002", "score": 0.6490069031715393, "sibling_score": 0.6490069031715393, "answer_score": null, "sibling_qid": "MUM-2024-08-0193-Q004", "sibling_text": "bwms d1 d2", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "D-1 versus D-2: the two ballast water standards", "cross_family": false }, { "answer_id": "BWM-D1D2-P02-002", "score": 0.6434652805328369, "sibling_score": 0.6434652805328369, "answer_score": null, "sibling_qid": "KOC-2022-09-0098-Q009", "sibling_text": "bwm d2 d4", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "BWM Section D standards — D-1 to D-5 overview and how they differ", "cross_family": false } ] }, { "qid": "KOL-2026-07-4263-Q007", "text": "IES, NES & NER?", "family": "Electrical - Distribution & MSB", "subtopic": "", "tid": "KOL-2026-07-4263", "tray": "new", "candidates": [ { "answer_id": "NER-HV-P04-001", "score": 0.571161687374115, "sibling_score": 0.571161687374115, "answer_score": 0.36574577689170834, "sibling_qid": "MUM-2026-06-3533-Q005", "sibling_text": "what is ner", "sibling_family": "Electrical - Distribution & MSB", "via": "sibling", "answer_title": "What an NER is, where it is used, and why it is fitted in HV systems", "cross_family": false }, { "answer_id": "NER-HV-P04-002", "score": 0.45255863666534424, "sibling_score": 0.45255863666534424, "answer_score": 0.3090664982795715, "sibling_qid": "MUM-2026-01-0676-Q013", "sibling_text": "how to calculate ner", "sibling_family": "", "via": "sibling", "answer_title": "How the NER value is selected/calculated, and its construction and material", "cross_family": false }, { "answer_id": "IR-TEST-305-005", "score": 0.3067902684211731, "sibling_score": null, "answer_score": 0.3067902684211731, "sibling_qid": "", "sibling_text": "star point hv alternator and ner context hv alternator neutral is earthed through an ner neutral earthing resistor to limit earth fault current lift the star point ner link before meggering otherwise you read through the resistor false low", "sibling_family": "", "via": "answer_title", "answer_title": "Star-point, HV alternator and NER context", "cross_family": false } ] }, { "qid": "KOL-2026-07-4263-Q008", "text": "ICCP, MGPS, When we stop?", "family": "Electrical - ICCP & Cathodic Protection", "subtopic": "ICCP / MGPS", "tid": "KOL-2026-07-4263", "tray": "new", "candidates": [ { "answer_id": "ICCP-MGPS-004", "score": 0.5670085549354553, "sibling_score": 0.5670085549354553, "answer_score": null, "sibling_qid": "KOL-2021-07-2457-Q001", "sibling_text": "iccp mgps", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP and MGPS together as ship-side anti-corrosion / anti-fouling systems", "cross_family": false }, { "answer_id": "ICCP-MGPS-003", "score": 0.562206506729126, "sibling_score": 0.562206506729126, "answer_score": 0.3003972381353378, "sibling_qid": "KOL-2018-08-3179-Q004", "sibling_text": "mgps maintenance what is iccp", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "MGPS maintenance, and its relationship / difference with ICCP", "cross_family": false }, { "answer_id": "ICCP-P02-003", "score": 0.510984480381012, "sibling_score": 0.510984480381012, "answer_score": null, "sibling_qid": "KOC-2026-01-1686-Q010", "sibling_text": "why iccp stopped at port", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP operation — port / berth practice, seawater temperature, starting & adjustment", "cross_family": false } ] }, { "qid": "KOL-2026-07-4263-Q010", "text": "Salient motor?", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator / Generator", "tid": "KOL-2026-07-4263", "tray": "new", "candidates": [ { "answer_id": "SYNC-ASY-C-003", "score": 0.5798659920692444, "sibling_score": 0.5798659920692444, "answer_score": null, "sibling_qid": "KOC-2025-01-1463-Q011", "sibling_text": "sync motor onboard", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Onboard uses of synchronous motors", "cross_family": false }, { "answer_id": "SYNC-ASYNC-A-002", "score": 0.5487653017044067, "sibling_score": 0.5487653017044067, "answer_score": null, "sibling_qid": "KOL-2025-09-2856-Q004", "sibling_text": "salient pole of synchronous motor and function", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Construction and main parts of a synchronous motor", "cross_family": false }, { "answer_id": "SYNC-ASY-C-001", "score": 0.5440633296966553, "sibling_score": 0.5440633296966553, "answer_score": null, "sibling_qid": "KOC-2024-02-1332-Q003", "sibling_text": "synchrous motor", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Working principle of a synchronous motor", "cross_family": false } ] }, { "qid": "KOL-2026-07-4263-Q011", "text": "IMO DCS, ESP. Decider question", "family": "Surveys - Statutory", "subtopic": "ESP / Enhanced Survey", "tid": "KOL-2026-07-4263", "tray": "new", "candidates": [ { "answer_id": "IMODCS-003", "score": 0.5706206560134888, "sibling_score": 0.5706206560134888, "answer_score": null, "sibling_qid": "KOL-2026-07-4267-Q006", "sibling_text": "what data sent for imo dcs decider question", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "How is the DCS report submitted — company, flag State, IMO — and how does it relate to the SEEMP?", "cross_family": true }, { "answer_id": "MRV-DCS-001", "score": 0.5324245095252991, "sibling_score": 0.5324245095252991, "answer_score": null, "sibling_qid": "KOL-2026-07-4267-Q005", "sibling_text": "imo dcs vs eu mrv decider question", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is the difference between EU MRV and IMO DCS?", "cross_family": true }, { "answer_id": "ESP-B-001", "score": 0.5109786987304688, "sibling_score": 0.5109786987304688, "answer_score": 0.29184855818748473, "sibling_qid": "KOL-2025-07-0995-Q008", "sibling_text": "decider what is esp which chapter of solas what all are checked", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "How an ESP survey is carried out — conduct, engine-room preparation & 2/E duties", "cross_family": false } ] }, { "qid": "KOL-2026-07-4264-Q009", "text": "Pounding arrangemet?", "family": "Ship Construction & Stability", "subtopic": "Panting / Pounding / Slamming", "tid": "KOL-2026-07-4264", "tray": "review", "candidates": [ { "answer_id": "PPS-230-004", "score": 0.6514832377433777, "sibling_score": 0.6514832377433777, "answer_score": 0.3495618373155594, "sibling_qid": "CHE-2025-08-0016-Q004", "sibling_text": "stern arrangement and pounding arrangement", "sibling_family": "", "via": "sibling", "answer_title": "Forward strengthening to resist pounding / slamming", "cross_family": false }, { "answer_id": "PPS-230-003", "score": 0.5917625427246094, "sibling_score": 0.5917625427246094, "answer_score": 0.3440653055906296, "sibling_qid": "KOL-2019-01-0258-Q002", "sibling_text": "pounding wht are the two important movements in it", "sibling_family": "", "via": "sibling", "answer_title": "Pounding and slamming: what they are, causes, and the ship motions", "cross_family": false }, { "answer_id": "PPS-230-001", "score": 0.569711446762085, "sibling_score": 0.569711446762085, "answer_score": null, "sibling_qid": "KOL-2026-07-4264-Q008", "sibling_text": "panting arrangement", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Panting: what it is and how the ship is protected", "cross_family": false } ] }, { "qid": "KOL-2026-07-4265-Q001", "text": "Shroud ring?", "family": "Turbocharger", "subtopic": "Shroud Ring", "tid": "KOL-2026-07-4265", "tray": "review", "candidates": [ { "answer_id": "SHRD-440-001", "score": 0.6857780814170837, "sibling_score": 0.6857780814170837, "answer_score": 0.3744486778974533, "sibling_qid": "KOL-2026-03-2049-Q005", "sibling_text": "shroud ring", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "What is the shroud ring, where is it fitted, and what does it do?", "cross_family": false }, { "answer_id": "SB-PRG-B-005", "score": 0.3389497667551041, "sibling_score": null, "answer_score": 0.3389497667551041, "sibling_qid": "", "sibling_text": "ring set segment identification checks and clearances", "sibling_family": "", "via": "answer_title", "answer_title": "Ring set, segment identification, checks and clearances", "cross_family": false }, { "answer_id": "SHRD-440-002", "score": 0.29843603670597074, "sibling_score": null, "answer_score": 0.29843603670597074, "sibling_qid": "", "sibling_text": "how is shroud ring clearance checked access point and procedure definition radial gap between turbine blade tips and the shroud ring access through the inspection opening or protective grating on the gas outlet side the exact access point is maker and design specific", "sibling_family": "", "via": "answer_title", "answer_title": "How is shroud ring clearance checked — access point and procedure?", "cross_family": false } ] }, { "qid": "KOL-2026-07-4265-Q002", "text": "Bore relief?", "family": "2-Stroke - Cylinder Head & Exhaust Valve", "subtopic": "", "tid": "KOL-2026-07-4265", "tray": "new", "candidates": [ { "answer_id": "CYL-LINER-P02-008", "score": 0.5203054547309875, "sibling_score": 0.5203054547309875, "answer_score": null, "sibling_qid": "KOL-2022-09-1711-Q002", "sibling_text": "causes of bore polishing", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L8 · T044-PART_02-G008High", "cross_family": true }, { "answer_id": "DCP-FIXED-A-003", "score": 0.49784573912620544, "sibling_score": 0.49784573912620544, "answer_score": null, "sibling_qid": "KOC-2025-01-0511-Q005", "sibling_text": "relief valves lifting pressure", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Capacities, pressures, relief settings, regulations and calculation", "cross_family": true }, { "answer_id": "ACRV-005", "score": 0.49478861689567566, "sibling_score": 0.49478861689567566, "answer_score": null, "sibling_qid": "MUM-2026-06-3409-Q004", "sibling_text": "blowdown of relief valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": true } ] }, { "qid": "KOL-2026-07-4265-Q004", "text": "Screen tube?", "family": "Boilers - Construction & Components", "subtopic": "Boiler Tubes", "tid": "KOL-2026-07-4265", "tray": "new", "candidates": [ { "answer_id": "SH-332-002", "score": 0.5000187158584595, "sibling_score": 0.5000187158584595, "answer_score": 0.33365204036235807, "sibling_qid": "MUM-2023-10-0955-Q006", "sibling_text": "tube attachment", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Where superheater tubes are fitted; attachment, support and expansion", "cross_family": false }, { "answer_id": "BCFS-004", "score": 0.48845216631889343, "sibling_score": 0.48845216631889343, "answer_score": null, "sibling_qid": "KOL-2025-07-1999-Q004", "sibling_text": "riser downcomer screen tube in boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Boiler forced circulation, risers, downcomers and screen tubes", "cross_family": false }, { "answer_id": "BLR-TUBE-P01-001", "score": 0.480509877204895, "sibling_score": 0.480509877204895, "answer_score": null, "sibling_qid": "KOL-2018-08-3180-Q004", "sibling_text": "tube expander function", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "01. Attaching, fitting and supporting boiler tubes", "cross_family": false } ] }, { "qid": "KOL-2026-07-4265-Q010", "text": "Nip and crush ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Bearing Clearance", "tid": "KOL-2026-07-4265", "tray": "new", "candidates": [ { "answer_id": "BRG-NOM-004", "score": 0.5126986503601074, "sibling_score": 0.5126986503601074, "answer_score": 0.32864563167095184, "sibling_qid": "MUM-2026-06-3447-Q004", "sibling_text": "nip of bearing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bearing Nip/Crush, Clearance, and How the Shell is Held", "cross_family": false }, { "answer_id": "FSE-P02-003", "score": 0.44064074754714966, "sibling_score": 0.44064074754714966, "answer_score": null, "sibling_qid": "KOC-2026-09-2171-Q006", "sibling_text": "swirl and squish", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Slack / partly-filled tanks and sloshing", "cross_family": true }, { "answer_id": "FP-OVHL-003", "score": 0.42467352747917175, "sibling_score": 0.42467352747917175, "answer_score": null, "sibling_qid": "KOL-2024-09-1951-Q001", "sibling_text": "what is nip and function", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Jerk pump general — leak to camshaft, retarded roller, and 'NIP'", "cross_family": true } ] }, { "qid": "KOL-2026-07-4266-Q002", "text": "ME main brng bottom removal?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE MAIN BEARING", "tid": "KOL-2026-07-4266", "tray": "new", "candidates": [ { "answer_id": "MAIN-BRG-B-001", "score": 0.581634521484375, "sibling_score": 0.581634521484375, "answer_score": null, "sibling_qid": "KOL-2021-09-3463-Q002", "sibling_text": "main brg bottom half removal position of web", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you open up / remove / overhaul a main-engine main bearing?", "cross_family": true }, { "answer_id": "MN-BRG-C-001", "score": 0.5544885993003845, "sibling_score": 0.5544885993003845, "answer_score": null, "sibling_qid": "KOL-2026-01-3900-Q001", "sibling_text": "main beraing removal", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Opening, removing and overhauling a main bearing", "cross_family": true }, { "answer_id": "BEB-A-001", "score": 0.5235956907272339, "sibling_score": 0.5235956907272339, "answer_score": 0.30565065890550613, "sibling_qid": "MUM-2025-12-2514-Q001", "sibling_text": "removal of bottom end brg to access remove top half", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Removing, overhauling, inspecting and refitting the bottom end bearing", "cross_family": true } ] }, { "qid": "KOL-2026-07-4266-Q004", "text": "Ductiliy and malleability ?", "family": "NDT & Material Testing", "subtopic": "Material Properties", "tid": "KOL-2026-07-4266", "tray": "review", "candidates": [ { "answer_id": "MATPROP-A-004", "score": 0.7096802592277527, "sibling_score": 0.7096802592277527, "answer_score": 0.4544547528028488, "sibling_qid": "KOL-2026-01-4082-Q008", "sibling_text": "ductility and malleability where used", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Mechanical properties", "cross_family": false }, { "answer_id": "DBT-490-003", "score": 0.6520244479179382, "sibling_score": 0.6520244479179382, "answer_score": null, "sibling_qid": "MUM-2026-06-3367-Q009", "sibling_text": "ductile to brittle", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Ductile-to-brittle transition and transition temperature", "cross_family": false }, { "answer_id": "STRSTR-298-004", "score": 0.564775288105011, "sibling_score": 0.564775288105011, "answer_score": null, "sibling_qid": "KOL-2025-12-1827-Q010", "sibling_text": "elastic and plastic deformation", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Elastic and plastic deformation, yield point, elastic point and fracture point on the curve", "cross_family": false } ] }, { "qid": "KOL-2026-07-4266-Q005", "text": "Rudder repair and checks ?", "family": "Shafting, Propeller & Rudder", "subtopic": "Stern Tube / Shafting / Propeller / Rudder", "tid": "KOL-2026-07-4266", "tray": "new", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.6368080377578735, "sibling_score": 0.6368080377578735, "answer_score": null, "sibling_qid": "KOL-2018-02-3123-Q004", "sibling_text": "drydock checks on rudder stern tube propeller all rudder clearences taking and values repairs cracks got funtion 6", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": true }, { "answer_id": "DDI-001", "score": 0.5996538996696472, "sibling_score": 0.5996538996696472, "answer_score": null, "sibling_qid": "MUM-2026-05-3307-Q003", "sibling_text": "checks done on propellor and rudder while on dry dock any measurements of propeller shaft and rudder", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "You have just docked and the water is pumped out — what do you check on the hull, propeller, rudder, sea chest and underwater valves? Where do you gauge hull thickness, and how do you find a damaged rudder?", "cross_family": false }, { "answer_id": "DUS-P5-05", "score": 0.5879074335098267, "sibling_score": 0.5879074335098267, "answer_score": 0.4809998244047165, "sibling_qid": "MUM-2025-05-0258-Q006", "sibling_text": "rudder checks in drydock", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Rudder checks and rudder-blade tightness/leak test in drydock", "cross_family": true } ] }, { "qid": "KOL-2026-07-4266-Q006", "text": "Setting of Boiler Safety valve? Decider question", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2026-07-4266", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-001", "score": 0.7934717535972595, "sibling_score": 0.7934717535972595, "answer_score": null, "sibling_qid": "CHE-2026-05-0597-Q020", "sibling_text": "boiler safety valve how the setting is done", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.7718578577041626, "sibling_score": 0.7718578577041626, "answer_score": null, "sibling_qid": "KOL-2026-01-3904-Q003", "sibling_text": "setting of boiler safety valve cross questions in high lift safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.7700968384742737, "sibling_score": 0.7700968384742737, "answer_score": null, "sibling_qid": "CHE-2026-05-0568-Q013", "sibling_text": "boiler safety valve how you confirm the proper setting of safety valve engineer observation", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false } ] }, { "qid": "KOL-2026-07-4267-Q001", "text": "Pounding and its arrangements ?", "family": "Ship Construction & Stability", "subtopic": "Panting / Pounding / Slamming", "tid": "KOL-2026-07-4267", "tray": "review", "candidates": [ { "answer_id": "PPS-230-004", "score": 0.6511343121528625, "sibling_score": 0.6511343121528625, "answer_score": 0.3493167757987976, "sibling_qid": "CHE-2026-05-0626-Q009", "sibling_text": "what is pounding and how it is strengthened", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Forward strengthening to resist pounding / slamming", "cross_family": false }, { "answer_id": "PPS-230-003", "score": 0.6126761436462402, "sibling_score": 0.6126761436462402, "answer_score": 0.3767552047967911, "sibling_qid": "KOL-2019-01-0258-Q002", "sibling_text": "pounding wht are the two important movements in it", "sibling_family": "", "via": "sibling", "answer_title": "Pounding and slamming: what they are, causes, and the ship motions", "cross_family": false }, { "answer_id": "PPS-230-001", "score": 0.5361948013305664, "sibling_score": 0.5361948013305664, "answer_score": null, "sibling_qid": "MUM-2026-09-3994-Q002", "sibling_text": "panting arrangement", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Panting: what it is and how the ship is protected", "cross_family": false } ] }, { "qid": "KOL-2026-07-4267-Q003", "text": "Esp , its frequency ?", "family": "Surveys - Statutory", "subtopic": "ESP / Enhanced Survey", "tid": "KOL-2026-07-4267", "tray": "review", "candidates": [ { "answer_id": "ALT-GEN-P04-007", "score": 0.7288575768470764, "sibling_score": 0.7288575768470764, "answer_score": null, "sibling_qid": "KOC-2026-03-1727-Q004", "sibling_text": "frequency", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Frequency, poles, speed and 50/60 Hz relation", "cross_family": true }, { "answer_id": "VFD-INV-P02-002", "score": 0.6130837202072144, "sibling_score": 0.6130837202072144, "answer_score": 0.3567327618598938, "sibling_qid": "KOL-2017-06-2135-Q004", "sibling_text": "frequency control in im", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "How are voltage and frequency varied and controlled in a VFD?", "cross_family": true }, { "answer_id": "RISK-RA-D-001", "score": 0.5996731519699097, "sibling_score": 0.5996731519699097, "answer_score": null, "sibling_qid": "KOL-2023-08-3633-Q006", "sibling_text": "frequency in risk management", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "", "cross_family": true } ] }, { "qid": "KOL-2026-07-4268-Q003", "text": "how to check slippage in crankshaft ?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft / Crankpin", "tid": "KOL-2026-07-4268", "tray": "review", "candidates": [ { "answer_id": "CRKC-INSP-003", "score": 0.6893268823623657, "sibling_score": 0.6893268823623657, "answer_score": 0.5123887240886688, "sibling_qid": "KOL-2019-07-3254-Q004", "sibling_text": "crank case inspection main points how will u check slippage where exactly are these marks there are lot of punches where u will look stuffing box what u will check and where what else u will check got function6 thanks guys", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Reference checks: piston rod, pinching screws, web slippage, stuffing box, chain slackness", "cross_family": false }, { "answer_id": "CRANK-217-004", "score": 0.67937833070755, "sibling_score": 0.67937833070755, "answer_score": 0.5760627686977386, "sibling_qid": "KOL-2026-02-3917-Q002", "sibling_text": "crankshaft slippage action and how will you know", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankshaft slippage, tell-tale marks and action if found", "cross_family": false }, { "answer_id": "CSD-BF036-003", "score": 0.6660642027854919, "sibling_score": 0.6660642027854919, "answer_score": null, "sibling_qid": "MUM-2025-12-2901-Q010", "sibling_text": "crankshaft deflection results how to verify", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "A 3/E has handed you the deflection readings — how do you verify they were taken correctly?", "cross_family": false } ] }, { "qid": "KOL-2026-07-4268-Q004", "text": "how to calibrate a torque spanner ?", "family": "Workshop Practice / Tools", "subtopic": "Torque Wrench Calibration", "tid": "KOL-2026-07-4268", "tray": "review", "candidates": [ { "answer_id": "MICR-002", "score": 0.7571737170219421, "sibling_score": 0.7571737170219421, "answer_score": 0.490618222951889, "sibling_qid": "MUM-2026-03-2944-Q006", "sibling_text": "how you calibrate torque spanner onboard ship", "sibling_family": "Workshop Practice / Tools", "via": "sibling", "answer_title": "Zero setting, calibration, error check and trueness", "cross_family": false }, { "answer_id": "MICR-003", "score": 0.6008484363555908, "sibling_score": 0.6008484363555908, "answer_score": null, "sibling_qid": "MUM-2026-02-2580-Q005", "sibling_text": "how to check the tool is properly calibrated", "sibling_family": "Gauges & Tools", "via": "sibling", "answer_title": "Cylinder liner calibration with the inside micrometer", "cross_family": true }, { "answer_id": "PRE-TEN-004", "score": 0.5958116054534912, "sibling_score": 0.5958116054534912, "answer_score": null, "sibling_qid": "CHE-2025-10-0446-Q001", "sibling_text": "you don t have torque wrench how you tight", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Tightening cylinder-head hydraulic bolts or nuts without a torque wrench", "cross_family": true } ] }, { "qid": "KOL-2026-07-4269-Q003", "text": "Megi and mega difference and what are the three step of megi and mega? 4 Top bracing function .where it is fitted ?", "family": "2-Stroke - Components (Other)", "subtopic": "Top Bracing", "tid": "KOL-2026-07-4269", "tray": "new", "candidates": [ { "answer_id": "TOP-BRC-001", "score": 0.5363317131996155, "sibling_score": 0.5363317131996155, "answer_score": 0.3457162410020828, "sibling_qid": "KOC-2021-07-0920-Q010", "sibling_text": "top bracing function", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "1. What top bracing is, where it is fitted, and why", "cross_family": false }, { "answer_id": "TOP-BRC-003", "score": 0.5181568264961243, "sibling_score": 0.5181568264961243, "answer_score": null, "sibling_qid": "KOL-2017-07-3076-Q005", "sibling_text": "top bracing function and testing", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "3. Checks, testing, maintenance, overhaul and malfunction", "cross_family": false }, { "answer_id": "TOP-BRC-002", "score": 0.5024215579032898, "sibling_score": 0.5024215579032898, "answer_score": null, "sibling_qid": "KOC-2024-09-1006-Q006", "sibling_text": "top bracing diagram working", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "2. Types and working — mechanical (friction) and hydraulic", "cross_family": false } ] }, { "qid": "KOL-2026-07-4270-Q008", "text": "VIT, at which Load cut in and cut off. Decider question", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "VIT Mechanism", "tid": "KOL-2026-07-4270", "tray": "new", "candidates": [ { "answer_id": "VIT-MECH-B-001", "score": 0.566424548625946, "sibling_score": 0.566424548625946, "answer_score": 0.3517705321311951, "sibling_qid": "MUM-2026-05-3175-Q005", "sibling_text": "vit at what load works", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "The VIT / Super VIT curve — breakpoint, range and load-dependent advance/retard", "cross_family": false }, { "answer_id": "VIT-MECH-D-002", "score": 0.513922393321991, "sibling_score": 0.513922393321991, "answer_score": null, "sibling_qid": "CHE-2026-05-0570-Q003", "sibling_text": "after one unit cut off how will u adjust vit and where u will adjust the vit", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "VIT malfunction, cut-out and unit isolation — checks, calibration, precautions", "cross_family": false }, { "answer_id": "EGTP-P02-008", "score": 0.4605085253715515, "sibling_score": 0.4605085253715515, "answer_score": null, "sibling_qid": "MUM-2023-08-1058-Q009", "sibling_text": "why not at and below 40 45 load", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "General Engine Theory — Operating Envelope", "cross_family": true } ] }, { "qid": "KOL-2026-07-4272-Q003", "text": "Fretting ?", "family": "Materials & Metallurgy", "subtopic": "", "tid": "KOL-2026-07-4272", "tray": "review", "candidates": [ { "answer_id": "WMAT-170-008", "score": 0.7276409864425659, "sibling_score": 0.7276409864425659, "answer_score": null, "sibling_qid": "KOL-2025-08-2011-Q001", "sibling_text": "fretting", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bearing defects and damage indications, and reading them", "cross_family": true }, { "answer_id": "MATPROP-A-005", "score": 0.6864350438117981, "sibling_score": 0.6864350438117981, "answer_score": null, "sibling_qid": "KOL-2022-06-1691-Q003", "sibling_text": "fretting where it occurs", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Corrosion and degradation mechanisms", "cross_family": true }, { "answer_id": "CFF-P02-001", "score": 0.5144714713096619, "sibling_score": 0.5144714713096619, "answer_score": null, "sibling_qid": "KOL-2024-07-1947-Q005", "sibling_text": "fatigue uts and fretting", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Fatigue failure — what it is and where it occurs", "cross_family": true } ] }, { "qid": "KOL-2026-07-4273-Q002", "text": "TC non functional how will you run the engine on low load how will aux blower take suction from TC path if TC is blocked?", "family": "Turbocharger", "subtopic": "Turbocharger Construction & Surging", "tid": "KOL-2026-07-4273", "tray": "review", "candidates": [ { "answer_id": "TURBO-CS-P03-018", "score": 0.7193359732627869, "sibling_score": 0.7193359732627869, "answer_score": 0.5830021083354949, "sibling_qid": "KOL-2023-11-3655-Q004", "sibling_text": "what will you do if your engine has only 1 t c and it has to be taken out of operation why do you need to remove compensating bellows from compressor discharge outlet from where does aux blower take suction", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Running with the only / all turbocharger(s) out of action", "cross_family": false }, { "answer_id": "TC-CS-P01-003", "score": 0.6518375277519226, "sibling_score": 0.6518375277519226, "answer_score": null, "sibling_qid": "CHE-2025-12-0233-Q007", "sibling_text": "hybrid tc systems and about aux blower", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "C·Hybrid turbocharger and the auxiliary blower", "cross_family": false }, { "answer_id": "TC-CONST-005", "score": 0.6494935154914856, "sibling_score": 0.6494935154914856, "answer_score": null, "sibling_qid": "MUM-2026-02-0995-Q002", "sibling_text": "blower side of tc", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Compressor/blower side components and air flow", "cross_family": false } ] }, { "qid": "KOL-2026-07-4273-Q004", "text": "Air compressor bursting disc rupture causes and cross.", "family": "Air Compressor", "subtopic": "Air Compressor Stages / Safeties", "tid": "KOL-2026-07-4273", "tray": "review", "candidates": [ { "answer_id": "ICAC-299-008", "score": 0.7792152762413025, "sibling_score": 0.7792152762413025, "answer_score": 0.5770785808563232, "sibling_qid": "KOL-2026-04-3953-Q004", "sibling_text": "air compressor intercooler bursting disc ruptured reasons", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Bursting disc gives way: running the compressor safely", "cross_family": false }, { "answer_id": "ACSS-002", "score": 0.6817412376403809, "sibling_score": 0.6817412376403809, "answer_score": null, "sibling_qid": "CHE-2026-03-0486-Q001", "sibling_text": "air compressor safeties and why intercooler bursting disc", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Relief / safety valves: settings, testing, lifting reasons; bursting disc", "cross_family": false }, { "answer_id": "ICAC-299-010", "score": 0.6599494814872742, "sibling_score": 0.6599494814872742, "answer_score": null, "sibling_qid": "KOL-2025-08-3853-Q002", "sibling_text": "in your watch main air compressor after cooler bursted not bursting disc what are the reasons", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Aftercooler burst: probable reasons", "cross_family": false } ] }, { "qid": "KOL-2026-07-4274-Q005", "text": "Ogee ring and where fitted what will happen and leakage and what provision provided to check", "family": "Boilers - Construction & Components", "subtopic": "Ogee Ring", "tid": "KOL-2026-07-4274", "tray": "new", "candidates": [ { "answer_id": "OGEE-RING-001", "score": 0.565727174282074, "sibling_score": 0.565727174282074, "answer_score": 0.3757417738437652, "sibling_qid": "KOL-2025-12-2029-Q004", "sibling_text": "ogee ring purpose shape how fitted bolted riveted welded", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "The ogee ring: what it is, where it sits, its purpose, and how it's formed and connected", "cross_family": false }, { "answer_id": "BLR-TUBE-P01-003", "score": 0.4941544532775879, "sibling_score": 0.4941544532775879, "answer_score": null, "sibling_qid": "KOL-2018-07-1391-Q003", "sibling_text": "what provision is there for tube expansion in water tube boiler draw ogee ring", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "02. Thermal expansion arrangements for boiler tubes", "cross_family": false }, { "answer_id": "SBPG-A-003", "score": 0.36823780983686444, "sibling_score": null, "answer_score": 0.36823780983686444, "sibling_qid": "", "sibling_text": "stuffing box leakage symptoms drain tank rise running checks source and post assembly confirmation primary symptom stuffing box drain tank level rising faster than usual rings worn carry over passing to the drain tank each unit has its own stuffing box drain line observe per unit to find the offender heavy continuous blackened or unusually contaminated drainings point to the leaking unit", "sibling_family": "", "via": "answer_title", "answer_title": "Stuffing box leakage — symptoms, drain-tank rise, running checks, source and post-assembly confirmation", "cross_family": false } ] }, { "qid": "KOL-2026-07-4275-Q003", "text": "How x head and guide is lubricated ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Crosshead Bearing", "tid": "KOL-2026-07-4275", "tray": "review", "candidates": [ { "answer_id": "XHEAD-303-006", "score": 0.7312604188919067, "sibling_score": 0.7312604188919067, "answer_score": 0.5054610371589661, "sibling_qid": "KOL-2026-02-4083-Q004", "sibling_text": "x head bearing and guide shue lubrication", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead and guide-shoe lubrication, difficulties, telescopic pipe", "cross_family": false }, { "answer_id": "XHD-BRG-C-004", "score": 0.6456372141838074, "sibling_score": 0.6456372141838074, "answer_score": null, "sibling_qid": "KOL-2025-01-1795-Q001", "sibling_text": "crosshead and guide shoe lubrication", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "D. Crosshead and guide-shoe lubrication: oil path, the no-load-reversal film problem, MAN vs Sulzer", "cross_family": false }, { "answer_id": "XHD-BRG-B-007", "score": 0.634671151638031, "sibling_score": 0.634671151638031, "answer_score": 0.489471697807312, "sibling_qid": "KOL-2023-11-1765-Q001", "sibling_text": "how cross head bearing and guide and guide shoe lubrication happen", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Guide and guide-shoe lubrication, and the oil path from sump to crosshead", "cross_family": false } ] }, { "qid": "KOL-2026-07-4275-Q005", "text": "Top bracing ? Decider", "family": "2-Stroke - Components (Other)", "subtopic": "Top Bracing", "tid": "KOL-2026-07-4275", "tray": "review", "candidates": [ { "answer_id": "TOP-BRC-001", "score": 0.6666728854179382, "sibling_score": 0.6666728854179382, "answer_score": 0.34791769087314606, "sibling_qid": "KOC-2021-07-0920-Q010", "sibling_text": "top bracing function", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "1. What top bracing is, where it is fitted, and why", "cross_family": false }, { "answer_id": "TOP-BRC-003", "score": 0.6657631993293762, "sibling_score": 0.6657631993293762, "answer_score": null, "sibling_qid": "MUM-2026-05-3343-Q003", "sibling_text": "top bracing function and checks", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "3. Checks, testing, maintenance, overhaul and malfunction", "cross_family": false }, { "answer_id": "HATCH-COAM-005", "score": 0.32192115783691405, "sibling_score": null, "answer_score": 0.32192115783691405, "sibling_qid": "", "sibling_text": "what supports stays or strengthening members are provided for hatch coamings and large hatch openings coaming stays triangular bracket plates between coaming and deck at intervals top stiffener bulb flat or equivalent 600 mm or higher coaming or a substantial rolled fabricated section lower exact section per class", "sibling_family": "", "via": "answer_title", "answer_title": "What supports, stays or strengthening members are provided for hatch coamings and large hatch openings?", "cross_family": false } ] }, { "qid": "KOL-2026-07-4275-Q008", "text": "What will be rise in pressure with addition of shim?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Injector", "tid": "KOL-2026-07-4275", "tray": "new", "candidates": [ { "answer_id": "FINJ-002", "score": 0.520324170589447, "sibling_score": 0.520324170589447, "answer_score": null, "sibling_qid": "KOL-2023-11-3654-Q004", "sibling_text": "what all testing in fuel valve if fuel v v opening pr is at 350 bar and its opening at 200 bar only what yo do for 1 shims addition or subtraction how much pr changes", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel injector overhaul and testing — spray pattern and opening pressure", "cross_family": false }, { "answer_id": "CO2-SYS-005", "score": 0.48776060342788696, "sibling_score": 0.48776060342788696, "answer_score": null, "sibling_qid": "KOC-2026-03-0843-Q005", "sibling_text": "fixed co2 system relief vv lifting pressure how the pressure rises", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 system safeties, CO2-room requirements, alarms and ventilation", "cross_family": true }, { "answer_id": "BLR-SURV-P02-001", "score": 0.4624824523925781, "sibling_score": 0.4624824523925781, "answer_score": null, "sibling_qid": "KOL-2026-02-3913-Q004", "sibling_text": "improved high lift safety valve pressure setting 3 above designated set pressure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": true } ] }, { "qid": "KOL-2026-07-4276-Q003", "text": "AVR SOLAS requirement ?", "family": "Electrical - Generator & Alternator", "subtopic": "AVR / Excitation", "tid": "KOL-2026-07-4276", "tray": "review", "candidates": [ { "answer_id": "AVR-EXC-H-004", "score": 0.7143463492393494, "sibling_score": 0.7143463492393494, "answer_score": 0.4269827842712402, "sibling_qid": "KOL-2026-10-4317-Q002", "sibling_text": "avr solas requirements", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "SOLAS / Class requirements for AVR voltage regulation", "cross_family": false }, { "answer_id": "SMSFR-001", "score": 0.3261363983154297, "sibling_score": null, "answer_score": 0.3261363983154297, "sibling_qid": "", "sibling_text": "what are the functional requirements of the ism code and the sms and the requirement for internal audit six functional requirements sit in ism code paragraph 1 4 the code is mandatory through solas chapter ix 1 a safety and environmental protection policy", "sibling_family": "", "via": "answer_title", "answer_title": "What are the functional requirements of the ISM Code and the SMS — and the requirement for internal audit?", "cross_family": false }, { "answer_id": "MOB-MKR-005", "score": 0.31883886456489563, "sibling_score": null, "answer_score": 0.31883886456489563, "sibling_qid": "", "sibling_text": "what is the solas requirement and regulation for the mob marker solas iii 7 1 3 is the regulation quote it by number not less than half of all lifebuoys self igniting lights lsa 2 1 2", "sibling_family": "", "via": "answer_title", "answer_title": "What is the SOLAS requirement and regulation for the MOB marker?", "cross_family": false } ] }, { "qid": "KOL-2026-07-4277-Q001", "text": "Type of ur ship?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2026-07-4277", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.7748485207557678, "sibling_score": 0.7748485207557678, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.7483564615249634, "sibling_score": 0.7483564615249634, "answer_score": 0.46725413799285886, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.740465521812439, "sibling_score": 0.740465521812439, "answer_score": 0.49837973713874817, "sibling_qid": "CHE-2026-05-0614-Q001", "sibling_text": "start from type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "KOL-2026-07-4277-Q003", "text": "Vgt cross from where it gets signal for operation?", "family": "2-Stroke - Components (Other)", "subtopic": "", "tid": "KOL-2026-07-4277", "tray": "new", "candidates": [ { "answer_id": "T038-P01-002", "score": 0.432989239692688, "sibling_score": 0.432989239692688, "answer_score": null, "sibling_qid": "KOC-2023-11-1303-Q002", "sibling_text": "adv of hv and cross", "sibling_family": "", "via": "sibling", "answer_title": "HV system onboard — layout, components, applications, earthing & protection", "cross_family": false }, { "answer_id": "TLM-218-001", "score": 0.4329872727394104, "sibling_score": 0.4329872727394104, "answer_score": null, "sibling_qid": "KOL-2021-07-3992-Q007", "sibling_text": "degree from bridge how the signal is coming and sequence of action", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Helm order from bridge to rudder — the full sequence", "cross_family": true }, { "answer_id": "AVR-EXC-H-001", "score": 0.4287913739681244, "sibling_score": 0.4287913739681244, "answer_score": null, "sibling_qid": "MUM-2026-06-3363-Q003", "sibling_text": "components of avr cross ques", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "AVR — location, components and fault checks", "cross_family": true } ] }, { "qid": "KOL-2026-07-4277-Q004", "text": "Types of variation in engine ?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOL-2026-07-4277", "tray": "new", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.5939655900001526, "sibling_score": 0.5939655900001526, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.5913916826248169, "sibling_score": 0.5913916826248169, "answer_score": null, "sibling_qid": "MUM-2026-09-3915-Q001", "sibling_text": "type of engine me and ae", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.5864673852920532, "sibling_score": 0.5864673852920532, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false } ] }, { "qid": "KOL-2026-07-4279-Q002", "text": "Back emf?", "family": "Electrical - Motors & Starters", "subtopic": "Starting Current", "tid": "KOL-2026-07-4279", "tray": "new", "candidates": [ { "answer_id": "DCMOT-A-003", "score": 0.5747835040092468, "sibling_score": 0.5747835040092468, "answer_score": 0.33294869810342786, "sibling_qid": "KOC-2024-12-1452-Q006", "sibling_text": "back emf internal no qns", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Back EMF in a DC motor", "cross_family": false }, { "answer_id": "ALT-GEN-P04-004", "score": 0.5046466588973999, "sibling_score": 0.5046466588973999, "answer_score": 0.28329030275344846, "sibling_qid": "KOL-2025-09-2864-Q002", "sibling_text": "what is emf", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Alternator EMF generation and EMF equation", "cross_family": true }, { "answer_id": "TBR-TT-P02-001", "score": 0.5044605135917664, "sibling_score": 0.5044605135917664, "answer_score": null, "sibling_qid": "MUM-2026-06-3655-Q014", "sibling_text": "what is emf", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Tie rod tightening / hydraulic tensioning procedure", "cross_family": true } ] }, { "qid": "KOL-2026-07-4279-Q003", "text": "Double cage induction motor?", "family": "Electrical - Motors & Starters", "subtopic": "Induction Motor (General / Working)", "tid": "KOL-2026-07-4279", "tray": "review", "candidates": [ { "answer_id": "IM-GEN-B-002", "score": 0.7742089629173279, "sibling_score": 0.7742089629173279, "answer_score": 0.5167276859283447, "sibling_qid": "MUM-2026-05-3167-Q002", "sibling_text": "where double cage induction motor used and why", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motors onboard and types of induction motors", "cross_family": false }, { "answer_id": "ROTSTAT-C-004", "score": 0.7634820342063904, "sibling_score": 0.7634820342063904, "answer_score": 0.5704697728157043, "sibling_qid": "MUM-2025-10-1709-Q007", "sibling_text": "working of double cage motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Single-cage & double-cage rotor construction", "cross_family": false }, { "answer_id": "ROT-STAT-A-001", "score": 0.7170404195785522, "sibling_score": 0.7170404195785522, "answer_score": null, "sibling_qid": "KOC-2025-02-1489-Q008", "sibling_text": "sq cage induction motor construction", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Squirrel-cage rotor — construction, parts and materials", "cross_family": false } ] }, { "qid": "KOL-2026-07-4279-Q005", "text": "Rated torque?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Transformer Theory", "tid": "KOL-2026-07-4279", "tray": "new", "candidates": [ { "answer_id": "IM-TRQ-P02-001", "score": 0.6417424082756042, "sibling_score": 0.6417424082756042, "answer_score": 0.4816140741109848, "sibling_qid": "KOL-2024-08-2724-Q001", "sibling_text": "max torque condition for im", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Factors affecting torque; conditions for maximum torque", "cross_family": true }, { "answer_id": "ETP-344-P01-006", "score": 0.6297610402107239, "sibling_score": 0.6297610402107239, "answer_score": null, "sibling_qid": "MUM-2026-06-3356-Q004", "sibling_text": "torque enrich", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Torque-rich condition", "cross_family": true }, { "answer_id": "INV-VFD-P03-001", "score": 0.6258178353309631, "sibling_score": 0.6258178353309631, "answer_score": null, "sibling_qid": "KOC-2025-05-0596-Q019", "sibling_text": "how speed controlled how starting torque controlled", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Speed control of an AC induction motor by frequency / VFD", "cross_family": false } ] }, { "qid": "KOL-2026-07-4279-Q006", "text": "Stall torque?", "family": "Electrical - Motors & Starters", "subtopic": "Induction Motor (General / Working)", "tid": "KOL-2026-07-4279", "tray": "review", "candidates": [ { "answer_id": "IM-TRQ-P02-001", "score": 0.6830527186393738, "sibling_score": 0.6830527186393738, "answer_score": 0.4897578477859497, "sibling_qid": "MUM-2026-04-2112-Q003", "sibling_text": "starting torque depends on", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Factors affecting torque; conditions for maximum torque", "cross_family": false }, { "answer_id": "IM-TRQ-P02-002", "score": 0.6196466684341431, "sibling_score": 0.6196466684341431, "answer_score": 0.4926074415445328, "sibling_qid": "MUM-2022-07-1341-Q006", "sibling_text": "speed torque char", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "The torque-speed / torque-slip characteristic curve", "cross_family": false }, { "answer_id": "CPP-GRM-06", "score": 0.4469948410987854, "sibling_score": null, "answer_score": 0.4469948410987854, "sibling_qid": "", "sibling_text": "flywheel and crankshaft speed irregularity factor flywheel function energy storage release across the cycle smoothing torque swing carrying engine through dead centres providing turning gear teeth inertia for starting cyclic torque varies wildly through the cycle near zero at compression peak at combustion tapering through expansion resistive on exhaust flywheel averages it out", "sibling_family": "", "via": "answer_title", "answer_title": "Flywheel and crankshaft speed-irregularity factor", "cross_family": false } ] }, { "qid": "KOL-2026-07-4280-Q001", "text": "Fun -4B Status of written", "family": "Status & Introduction", "subtopic": "Exam Status", "tid": "KOL-2026-07-4280", "tray": "new", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.5031818151473999, "sibling_score": 0.5031818151473999, "answer_score": null, "sibling_qid": "MUM-2026-03-1294-Q001", "sibling_text": "status of writtens and orals", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": true }, { "answer_id": "EXHV-P01-001", "score": 0.48780059814453125, "sibling_score": 0.48780059814453125, "answer_score": null, "sibling_qid": "KOC-2026-08-2106-Q001", "sibling_text": "status of written oral company type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.42365145683288574, "sibling_score": 0.42365145683288574, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q001", "sibling_text": "type of vessel engine make written and oral status", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "KOL-2026-07-4280-Q004", "text": "from angle Encoder how the signals are sent × cross questions?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Angle Encoder", "tid": "KOL-2026-07-4280", "tray": "review", "candidates": [ { "answer_id": "ANG-ENC-001", "score": 0.7509763836860657, "sibling_score": 0.7509763836860657, "answer_score": 0.43160992264747616, "sibling_qid": "KOC-2025-12-1081-Q002", "sibling_text": "angle encoder to many cross", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Purpose of the angle encoder on an electronically controlled main engine", "cross_family": false }, { "answer_id": "ANG-ENC-004", "score": 0.7312268614768982, "sibling_score": 0.7312268614768982, "answer_score": null, "sibling_qid": "CHE-2026-05-0558-Q016", "sibling_text": "angle encoders what checks deciding question", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Checks, testing, calibration and maintenance", "cross_family": false }, { "answer_id": "ANG-ENC-003", "score": 0.701305091381073, "sibling_score": 0.701305091381073, "answer_score": 0.4518628358840942, "sibling_qid": "KOC-2022-07-0079-Q023", "sibling_text": "angle encoder working", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Working principle: sensing crank angle, speed and direction", "cross_family": false } ] }, { "qid": "KOL-2026-07-4280-Q006", "text": "High carbon steel composition where it is used and why it is used?", "family": "Materials & Metallurgy", "subtopic": "Steel types, killed steel, high-tensile steel", "tid": "KOL-2026-07-4280", "tray": "new", "candidates": [ { "answer_id": "MATPROP-A-001", "score": 0.6387150883674622, "sibling_score": 0.6387150883674622, "answer_score": 0.44759551286697385, "sibling_qid": "KOL-2020-11-3358-Q001", "sibling_text": "percentage of carbon in basic steel percentage of carbon in high carbon steel what property is enhanced in high carbon steel where is high carbon steel used what is strength", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Steel types and composition", "cross_family": true }, { "answer_id": "STEEL-GR-002", "score": 0.5339683294296265, "sibling_score": 0.5339683294296265, "answer_score": 0.42433931678533554, "sibling_qid": "KOL-2026-05-0047-Q006", "sibling_text": "plain carbon steel carbon contain", "sibling_family": "", "via": "sibling", "answer_title": "Mild steel — composition, use, and how it differs from cast iron", "cross_family": false }, { "answer_id": "STEEL-GR-003", "score": 0.518790066242218, "sibling_score": 0.518790066242218, "answer_score": 0.43428330719470976, "sibling_qid": "KOL-2025-09-1072-Q004", "sibling_text": "why high tensile steel is used more stress region where crack occurs", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "High-tensile steel — where and why it is used", "cross_family": true } ] }, { "qid": "KOL-2026-07-4280-Q007", "text": "Metal locking X cross question and on what material is done and under what condition it is carried out?", "family": "Workshop & Welding", "subtopic": "Metal Locking", "tid": "KOL-2026-07-4280", "tray": "review", "candidates": [ { "answer_id": "METAL-LOCK-002", "score": 0.6575410962104797, "sibling_score": 0.6575410962104797, "answer_score": 0.48425179123878476, "sibling_qid": "KOL-2019-11-3291-Q003", "sibling_text": "metal locking procedure", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Metal locking procedure: pockets, keys, stitching pins", "cross_family": false }, { "answer_id": "METAL-LOCK-001", "score": 0.6558640003204346, "sibling_score": 0.6558640003204346, "answer_score": 0.4798264980316162, "sibling_qid": "KOL-2026-01-3909-Q004", "sibling_text": "metal locking explain", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "What is metal locking / stitching, why use it, materials & benefits", "cross_family": false }, { "answer_id": "METAL-LOCK-003", "score": 0.5868493318557739, "sibling_score": 0.5868493318557739, "answer_score": null, "sibling_qid": "KOL-2017-06-3063-Q003", "sibling_text": "how you will do metal locking in cracked liner", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Cold repair of cracked cast-iron parts: liner, pump/valve cage, loose bearing seat", "cross_family": false } ] }, { "qid": "KOL-2026-07-4280-Q010", "text": "What difficulties faced in MIG welding and on which material was done and x cross question?", "family": "Workshop & Welding", "subtopic": "Plasma / Arc / TIG / MIG", "tid": "KOL-2026-07-4280", "tray": "new", "candidates": [ { "answer_id": "WELD-PATM-004", "score": 0.6333460211753845, "sibling_score": 0.6333460211753845, "answer_score": 0.4541000038385391, "sibling_qid": "KOL-2025-05-3782-Q003", "sibling_text": "disadvantages of mig welding", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "MIG welding – process and applications", "cross_family": false }, { "answer_id": "WELD-B-001", "score": 0.6298952698707581, "sibling_score": 0.6298952698707581, "answer_score": null, "sibling_qid": "MUM-2026-07-3727-Q007", "sibling_text": "cast iron welding difficulties", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding & crack-repair of aluminium and cast iron, including metal stitching", "cross_family": false }, { "answer_id": "WELD-PATM-005", "score": 0.6032121181488037, "sibling_score": 0.6032121181488037, "answer_score": 0.41650479584932326, "sibling_qid": "KOL-2021-03-3383-Q003", "sibling_text": "tig welding what is difference between mig and tig is it expensive where it is used", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "TIG vs MIG – differences, uses, advantages", "cross_family": false } ] }, { "qid": "KOL-2026-07-4281-Q003", "text": "Causes of A FRAME break ?", "family": "2-Stroke - Components (Other)", "subtopic": "", "tid": "KOL-2026-07-4281", "tray": "new", "candidates": [ { "answer_id": "FWFB-P02-008", "score": 0.5958943367004395, "sibling_score": 0.5958943367004395, "answer_score": null, "sibling_qid": "MUM-2026-05-3081-Q001", "sibling_text": "a frame crack reason", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Forces and stresses on transverse girders; action for cracks", "cross_family": true }, { "answer_id": "FWFB-P02-003", "score": 0.49467548727989197, "sibling_score": 0.49467548727989197, "answer_score": null, "sibling_qid": "CHE-2025-08-0016-Q005", "sibling_text": "types of frames", "sibling_family": "", "via": "sibling", "answer_title": "Framing systems and racking", "cross_family": false }, { "answer_id": "KGF-A-003", "score": 0.48833680152893066, "sibling_score": 0.48833680152893066, "answer_score": 0.418885038793087, "sibling_qid": "MUM-2026-02-0742-Q006", "sibling_text": "types of frame", "sibling_family": "", "via": "sibling", "answer_title": "Frames: types & purpose", "cross_family": false } ] }, { "qid": "KOL-2026-07-4281-Q004", "text": "Developments in exahust valve factors affecting turbine oil?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Viscosity Index", "tid": "KOL-2026-07-4281", "tray": "review", "candidates": [ { "answer_id": "EXHV-P03-008", "score": 0.6593402624130249, "sibling_score": 0.6593402624130249, "answer_score": 0.5354682296514511, "sibling_qid": "KOL-2026-05-4096-Q005", "sibling_text": "exhaust valve latest developments", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Latest developments in main-engine exhaust valves", "cross_family": true }, { "answer_id": "EXHV-297-001", "score": 0.6566647291183472, "sibling_score": 0.6566647291183472, "answer_score": null, "sibling_qid": "MUM-2026-05-3145-Q005", "sibling_text": "exhaust valve latest development", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve — construction, materials, type, working & latest developments", "cross_family": true }, { "answer_id": "EXHV-080-BF37-004", "score": 0.6089319586753845, "sibling_score": 0.6089319586753845, "answer_score": null, "sibling_qid": "MUM-2023-08-2187-Q010", "sibling_text": "few more don t remember internal decider what is exhaust valve overhaul interval what new design introduced that increased tbo what is nimonic", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "What is the overhaul interval, when do you do it, and what developments increased the TBO?", "cross_family": true } ] }, { "qid": "KOL-2026-07-4281-Q007", "text": "Tightness check of holding down bolts?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Holding Down Bolts", "tid": "KOL-2026-07-4281", "tray": "review", "candidates": [ { "answer_id": "TBR-TT-P02-002", "score": 0.7902276515960693, "sibling_score": 0.7902276515960693, "answer_score": 0.4687542974948883, "sibling_qid": "MUM-2026-02-2549-Q006", "sibling_text": "holding down bolts tightness check", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Checking tie rod tightness / slackness — stopped and running", "cross_family": false }, { "answer_id": "TBR-TT-P02-001", "score": 0.7459595799446106, "sibling_score": 0.7459595799446106, "answer_score": null, "sibling_qid": "CHE-2026-05-0641-Q012", "sibling_text": "holding down bolts checks and tightening", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Tie rod tightening / hydraulic tensioning procedure", "cross_family": false }, { "answer_id": "FB-COUP-001", "score": 0.6573976874351501, "sibling_score": 0.6573976874351501, "answer_score": null, "sibling_qid": "MUM-2026-06-3439-Q003", "sibling_text": "how the fitted bolts are bolted", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What fitted bolts are, what they do, and where they sit onboard", "cross_family": false } ] }, { "qid": "KOL-2026-07-4282-Q003", "text": "What is cold steel?", "family": "Materials & Metallurgy", "subtopic": "Steel types, killed steel, high-tensile steel", "tid": "KOL-2026-07-4282", "tray": "new", "candidates": [ { "answer_id": "ICD-065-002", "score": 0.5325384736061096, "sibling_score": 0.5325384736061096, "answer_score": null, "sibling_qid": "MUM-2023-12-1068-Q005", "sibling_text": "what is eutectic steel", "sibling_family": "Materials & Metallurgy", "via": "sibling", "answer_title": "What is eutectic steel?", "cross_family": false }, { "answer_id": "MATPROP-A-010", "score": 0.516144871711731, "sibling_score": 0.516144871711731, "answer_score": 0.42533068358898163, "sibling_qid": "CHE-2025-12-0236-Q005", "sibling_text": "what is cold rolling", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Cold rolling, plastic deformation and plastic steel", "cross_family": true }, { "answer_id": "MATPROP-A-001", "score": 0.49692195653915405, "sibling_score": 0.49692195653915405, "answer_score": null, "sibling_qid": "KOL-2021-07-1598-Q001", "sibling_text": "what is steel chromium steel compostion uses", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Steel types and composition", "cross_family": true } ] }, { "qid": "KOL-2026-07-4282-Q005", "text": "How to take axial thrust clearance in thrust block. He isn't satisfied with dial gauge method?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Thrust Bearing", "tid": "KOL-2026-07-4282", "tray": "review", "candidates": [ { "answer_id": "THR-BRG-A-001", "score": 0.7020466923713684, "sibling_score": 0.7020466923713684, "answer_score": null, "sibling_qid": "KOL-2021-11-3486-Q003", "sibling_text": "thrust pad bearing clearance how to check he want to listen to shift shaft aft and ahead and take clearance by filler gauge or dial gauge", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you check, measure, limit and adjust main-engine thrust bearing clearance?", "cross_family": false }, { "answer_id": "THRUST-PC-003", "score": 0.6971942186355591, "sibling_score": 0.6971942186355591, "answer_score": 0.5414148092269897, "sibling_qid": "KOL-2019-01-3203-Q002", "sibling_text": "how will you take the clearence of the thrust bearing without removing the thrust block", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Taking the thrust clearance (without removing the block)", "cross_family": false }, { "answer_id": "TB-BEAR-001", "score": 0.6905795335769653, "sibling_score": 0.6905795335769653, "answer_score": 0.5678384900093079, "sibling_qid": "MUM-2026-06-3516-Q004", "sibling_text": "thrust block clearance measurement procedure both sulzer and man", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Thrust bearing clearance — measurement procedure & value", "cross_family": false } ] }, { "qid": "KOL-2026-07-4283-Q001", "text": "Coating technical file information ?", "family": "SOLAS - General", "subtopic": "", "tid": "KOL-2026-07-4283", "tray": "new", "candidates": [ { "answer_id": "A6-NSEC-005", "score": 0.6315832138061523, "sibling_score": 0.6315832138061523, "answer_score": null, "sibling_qid": "KOL-2016-08-0008-Q004", "sibling_text": "seemp technical file details", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP — Part I, II & III", "cross_family": true }, { "answer_id": "EEDI-A-002", "score": 0.5981522798538208, "sibling_score": 0.5981522798538208, "answer_score": null, "sibling_qid": "KOL-2019-12-0375-Q003", "sibling_text": "eedi technical file", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "The EEDI Technical File and the IEEC documentation", "cross_family": true }, { "answer_id": "HULL-PAINT-001", "score": 0.5944310426712036, "sibling_score": 0.5944310426712036, "answer_score": null, "sibling_qid": "MUM-2026-05-3352-Q008", "sibling_text": "paint scheme in drydock in detail tell about all the coats with thickness", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Preparing the hull surface before painting in dry dock — cleanliness standard and methods", "cross_family": true } ] }, { "qid": "KOL-2026-07-4283-Q002", "text": "Why we don't have uniform corrosion in ballast tank?", "family": "Cargo Ops - Bulk Carriers", "subtopic": "", "tid": "KOL-2026-07-4283", "tray": "new", "candidates": [ { "answer_id": "COT-06", "score": 0.5304462909698486, "sibling_score": 0.5304462909698486, "answer_score": 0.4523842692375183, "sibling_qid": "KOL-2016-08-2068-Q008", "sibling_text": "corrosion inside cargo tank in what condition how to mitigate it", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Cargo-tank corrosion and protective surface films", "cross_family": true }, { "answer_id": "ESP-B-002", "score": 0.5105366110801697, "sibling_score": 0.5105366110801697, "answer_score": null, "sibling_qid": "MUM-2026-04-0926-Q001", "sibling_text": "esp why only for bulk carrier what u will check and what is substantial corrosion", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Close-up survey, thickness gauging, substantial corrosion & renewal criteria", "cross_family": true }, { "answer_id": "SUB-CORR-001", "score": 0.5010973215103149, "sibling_score": 0.5010973215103149, "answer_score": null, "sibling_qid": "MUM-2026-05-3232-Q006", "sibling_text": "substantial corrosion", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "SUB-CORR-01 — What is substantial corrosion, and how is it identified against survey limits?", "cross_family": true } ] }, { "qid": "KOL-2026-07-4283-Q003", "text": "Advance Speed ratio of propeller ?", "family": "Shafting, Propeller & Rudder", "subtopic": "Stern Tube / Shafting / Propeller / Rudder", "tid": "KOL-2026-07-4283", "tray": "review", "candidates": [ { "answer_id": "SPR-STERN-003", "score": 0.7479321360588074, "sibling_score": 0.7479321360588074, "answer_score": 0.5378519177436828, "sibling_qid": "KOL-2018-11-0230-Q005", "sibling_text": "propeller pitch ratio", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Propeller pitch & pitch ratio, and how it's measured", "cross_family": false }, { "answer_id": "RES-PROP-P01-004", "score": 0.7473019361495972, "sibling_score": 0.7473019361495972, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q006", "sibling_text": "propeller power ratio", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "From resistance to power: effective power, propulsive coefficient, the Admiralty coefficient and model testing", "cross_family": false }, { "answer_id": "SPR-STERN-006", "score": 0.6856189370155334, "sibling_score": 0.6856189370155334, "answer_score": null, "sibling_qid": "MUM-2026-09-3935-Q005", "sibling_text": "propeller advancement", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Propeller types & special propulsors", "cross_family": false } ] }, { "qid": "KOL-2026-07-4284-Q003", "text": "Accumulator in fridge compressor?", "family": "Refrigeration & AC", "subtopic": "Refer Cycle", "tid": "KOL-2026-07-4284", "tray": "review", "candidates": [ { "answer_id": "REF-CYC-002", "score": 0.8598807454109192, "sibling_score": 0.8598807454109192, "answer_score": null, "sibling_qid": "KOL-2026-07-4281-Q006", "sibling_text": "accumulator in fridge compressor", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "2. Refrigeration plant components and their control functions", "cross_family": false }, { "answer_id": "REEF-COMP-008", "score": 0.6522455811500549, "sibling_score": 0.6522455811500549, "answer_score": null, "sibling_qid": "KOL-2023-07-3617-Q006", "sibling_text": "cooling arrangement of compressor in refrigeration system", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Valves, clearances, oil carry-over, refrigerant-in-oil, frosting, tandem valves, cooling — fault checks", "cross_family": false }, { "answer_id": "CAP-CTRL-002", "score": 0.6505811810493469, "sibling_score": 0.6505811810493469, "answer_score": null, "sibling_qid": "KOL-2023-04-3606-Q002", "sibling_text": "ac compressor cylinder arrangement unloader working", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "CG-002 · How the cylinder-unloader mechanism works", "cross_family": false } ] }, { "qid": "KOL-2026-07-4284-Q005", "text": "Steering gear system oil high temperature, reasons?", "family": "Steering Gear & Hydraulics", "subtopic": "", "tid": "KOL-2026-07-4284", "tray": "review", "candidates": [ { "answer_id": "SG-055-B-002", "score": 0.7766416668891907, "sibling_score": 0.7766416668891907, "answer_score": null, "sibling_qid": "KOL-2026-09-4312-Q012", "sibling_text": "steering gear room high temperature alarm causes related to hydraulic oil", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Steering-gear alarms, trips and electrical / hydraulic safeties", "cross_family": false }, { "answer_id": "SGRS-328-003", "score": 0.635671079158783, "sibling_score": 0.635671079158783, "answer_score": null, "sibling_qid": "KOC-2026-03-0933-Q009", "sibling_text": "steering gear oil leaking major leak minor leak actions seal changing procedure no of seals seal type", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "What action will you take for minor and major ram seal leakage?", "cross_family": false }, { "answer_id": "LO-TEST-P02-003", "score": 0.630324125289917, "sibling_score": 0.630324125289917, "answer_score": null, "sibling_qid": "MUM-2026-09-3942-Q008", "sibling_text": "ae lube oil temp increase reasons", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Abnormal LO condition: sump rise, colour, high temperature/pressure, lacquer, deterioration", "cross_family": true } ] }, { "qid": "KOL-2026-07-4285-Q001", "text": "Safematic s/g - how it work. What arrangements are provided. How will the system decide?", "family": "Steering Gear & Hydraulics", "subtopic": "safematic", "tid": "KOL-2026-07-4285", "tray": "new", "candidates": [ { "answer_id": "STG-055-C-001", "score": 0.6081969738006592, "sibling_score": 0.6081969738006592, "answer_score": null, "sibling_qid": "KOL-2023-07-1747-Q005", "sibling_text": "s g safematic system explain", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Safematic steering gear, redundancy and the single-failure criterion", "cross_family": false }, { "answer_id": "SGS-BF1-001", "score": 0.5058428645133972, "sibling_score": 0.5058428645133972, "answer_score": null, "sibling_qid": "KOC-2025-08-1561-Q011", "sibling_text": "safematic system how working", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Safematic steering gear system — how it is asked in the oral, and what SOLAS actually requires", "cross_family": true }, { "answer_id": "FSF-BF073-001", "score": 0.4638039469718933, "sibling_score": 0.4638039469718933, "answer_score": 0.33131552040576934, "sibling_qid": "KOL-2019-02-0262-Q005", "sibling_text": "what is fail safe system in s g", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "What is fail safe — where do we use it on board and how does it work?", "cross_family": true } ] }, { "qid": "KOL-2026-07-4285-Q002", "text": "Vit as super vit - breakpoint, difference how it work?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "VIT Mechanism", "tid": "KOL-2026-07-4285", "tray": "review", "candidates": [ { "answer_id": "VIT-MECH-B-001", "score": 0.8006420135498047, "sibling_score": 0.8006420135498047, "answer_score": 0.36450435817241666, "sibling_qid": "KOL-2021-10-1628-Q005", "sibling_text": "vit and super vit main difference how breakpoint adjusted", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "The VIT / Super VIT curve — breakpoint, range and load-dependent advance/retard", "cross_family": false }, { "answer_id": "VIT-MECH-D-001", "score": 0.6742437481880188, "sibling_score": 0.6742437481880188, "answer_score": 0.3494715541601181, "sibling_qid": "KOL-2025-07-4060-Q005", "sibling_text": "vit super vit breakepoint", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Super-VIT — construction and working (double-thread / upper-lower thread)", "cross_family": false }, { "answer_id": "VIT-MECH-A-003", "score": 0.5953828692436218, "sibling_score": 0.5953828692436218, "answer_score": 0.3811171680688858, "sibling_qid": "KOL-2018-06-1383-Q006", "sibling_text": "vit super vit difference", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Conventional VIT vs Super-VIT — what actually differs", "cross_family": false } ] }, { "qid": "KOL-2026-07-4285-Q004", "text": "C/s deflection after reading how many point you take. What all check after obtaining reading...does not accept graph and previous report match?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft Deflection", "tid": "KOL-2026-07-4285", "tray": "review", "candidates": [ { "answer_id": "CRK-DEFL-003", "score": 0.6792436242103577, "sibling_score": 0.6792436242103577, "answer_score": 0.47824132442474365, "sibling_qid": "KOL-2017-07-3076-Q002", "sibling_text": "how to know c c deflection taken is correct", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Verifying deflection readings taken by others", "cross_family": false }, { "answer_id": "CSD-BF036-003", "score": 0.6780350804328918, "sibling_score": 0.6780350804328918, "answer_score": 0.491249343752861, "sibling_qid": "MUM-2026-05-3195-Q007", "sibling_text": "3e took crankshaft deflection and given readings to you as 2e how you will check if it s taken correctly and graph plotting", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "A 3/E has handed you the deflection readings — how do you verify they were taken correctly?", "cross_family": false }, { "answer_id": "CRK-DEFL-005", "score": 0.6540027856826782, "sibling_score": 0.6540027856826782, "answer_score": 0.5052221566438675, "sibling_qid": "KOL-2025-11-3888-Q004", "sibling_text": "3rd engineer has taken crank shaft deflection reading and submitted to you what will you do now how will you verify readings t b p s how to get meaningful insight from graph how to draw graph what is on x axis and y axis", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Plotting and interpreting the deflection curve", "cross_family": false } ] }, { "qid": "KOL-2026-07-4285-Q005", "text": "Tig welding disadvantage?", "family": "Workshop & Welding", "subtopic": "Plasma / Arc / TIG / MIG", "tid": "KOL-2026-07-4285", "tray": "review", "candidates": [ { "answer_id": "WELD-PATM-004", "score": 0.7301642298698425, "sibling_score": 0.7301642298698425, "answer_score": null, "sibling_qid": "KOL-2025-05-3782-Q003", "sibling_text": "disadvantages of mig welding", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "MIG welding – process and applications", "cross_family": false }, { "answer_id": "WELD-PATM-003", "score": 0.7229810357093811, "sibling_score": 0.7229810357093811, "answer_score": 0.5242615163326263, "sibling_qid": "KOL-2020-11-1563-Q007", "sibling_text": "tig welding advantage", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "TIG welding – process, shielding gas, advantages, uses", "cross_family": false }, { "answer_id": "WELD-PATM-005", "score": 0.6815019249916077, "sibling_score": 0.6815019249916077, "answer_score": 0.4889354705810547, "sibling_qid": "KOL-2021-03-3383-Q003", "sibling_text": "tig welding what is difference between mig and tig is it expensive where it is used", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "TIG vs MIG – differences, uses, advantages", "cross_family": false } ] }, { "qid": "KOL-2026-07-4285-Q007", "text": "Fire line crack repair procedure?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Lifeboat", "tid": "KOL-2026-07-4285", "tray": "review", "candidates": [ { "answer_id": "LSA-LB-A-006", "score": 0.7011287808418274, "sibling_score": 0.7011287808418274, "answer_score": null, "sibling_qid": "CHE-2026-04-0503-Q006", "sibling_text": "life crack repair procedure", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat hull material and crack / hole repair", "cross_family": false }, { "answer_id": "PIPEFAB-009", "score": 0.6584157943725586, "sibling_score": 0.6584157943725586, "answer_score": null, "sibling_qid": "KOL-2025-03-3761-Q002", "sibling_text": "fire line hole how to do temporary repairs", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "A seawater or fire line is leaking / thinned down — action as 2/E, valve not holding, no hot work possible", "cross_family": true }, { "answer_id": "WBS-C-005", "score": 0.6416548490524292, "sibling_score": 0.6416548490524292, "answer_score": null, "sibling_qid": "MUM-2024-11-2252-Q006", "sibling_text": "steam line crack how would you repair", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Crack and leak repair — deck plate, steam line, air receiver and other shipboard cracks", "cross_family": true } ] }, { "qid": "KOL-2026-07-4286-Q001", "text": "Plain carbon steel definition ( don't tell me type and composition)?", "family": "Materials & Metallurgy", "subtopic": "Steel types, killed steel, high-tensile steel", "tid": "KOL-2026-07-4286", "tray": "review", "candidates": [ { "answer_id": "STEEL-GR-002", "score": 0.7638280391693115, "sibling_score": 0.7638280391693115, "answer_score": 0.4379551768302917, "sibling_qid": "KOL-2026-05-0047-Q006", "sibling_text": "plain carbon steel carbon contain", "sibling_family": "", "via": "sibling", "answer_title": "Mild steel — composition, use, and how it differs from cast iron", "cross_family": false }, { "answer_id": "ICD-065-001", "score": 0.5872048735618591, "sibling_score": 0.5872048735618591, "answer_score": null, "sibling_qid": "MUM-2026-03-2942-Q024", "sibling_text": "iron carbon diagram full details", "sibling_family": "Materials & Metallurgy", "via": "sibling", "answer_title": "Draw and explain the iron-carbon diagram in full detail", "cross_family": false }, { "answer_id": "MATPROP-A-001", "score": 0.5849094390869141, "sibling_score": 0.5849094390869141, "answer_score": 0.5674254268407821, "sibling_qid": "KOL-2020-11-3358-Q001", "sibling_text": "percentage of carbon in basic steel percentage of carbon in high carbon steel what property is enhanced in high carbon steel where is high carbon steel used what is strength", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Steel types and composition", "cross_family": true } ] }, { "qid": "KOL-2026-07-4286-Q006", "text": "Repair in sea water line step by step procedure?", "family": "Workshop & Welding", "subtopic": "Pipe Fabrication", "tid": "KOL-2026-07-4286", "tray": "new", "candidates": [ { "answer_id": "PIPEFAB-010", "score": 0.6070829033851624, "sibling_score": 0.6070829033851624, "answer_score": null, "sibling_qid": "KOL-2025-09-4063-Q002", "sibling_text": "how to repair copper pipe of sea water pump discharge gauge", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "How do you repair the copper pipe of the seawater pump discharge gauge?", "cross_family": false }, { "answer_id": "PIPEFAB-009", "score": 0.5855066180229187, "sibling_score": 0.5855066180229187, "answer_score": null, "sibling_qid": "KOL-2021-04-3398-Q004", "sibling_text": "how to renew sea water pipe", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "A seawater or fire line is leaking / thinned down — action as 2/E, valve not holding, no hot work possible", "cross_family": false }, { "answer_id": "PIPEFAB-001", "score": 0.582152783870697, "sibling_score": 0.582152783870697, "answer_score": null, "sibling_qid": "MUM-2026-01-2544-Q001", "sibling_text": "a sea water pipe has leak and read to be fabricated with same old flanges how will you guide fitter to carry out the job", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "A damaged pipe has been removed — fabricate the new one: profiling an uneven/bent section and the instructions you give the 3/E or fitter", "cross_family": false } ] }, { "qid": "KOL-2026-07-4287-Q004", "text": "LRIT working and appliances?", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "KOL-2026-07-4287", "tray": "new", "candidates": [ { "answer_id": "EPC-P03-008", "score": 0.42547985911369324, "sibling_score": 0.42547985911369324, "answer_score": null, "sibling_qid": "KOL-2017-08-2148-Q001", "sibling_text": "household wattmeter working", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "How does a wattmeter work — current coil and voltage coil; how does the disc rotate in the household energy meter; and what do the CT and VT do?", "cross_family": true }, { "answer_id": "MIB-A-002", "score": 0.4219316840171814, "sibling_score": 0.4219316840171814, "answer_score": null, "sibling_qid": "KOC-2021-11-1151-Q006", "sibling_text": "igbt working applications which appliance at home have igbt", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "IGBT construction, working, symbol and function", "cross_family": true }, { "answer_id": "DSC-002", "score": 0.41546088457107544, "sibling_score": 0.41546088457107544, "answer_score": null, "sibling_qid": "KOC-2025-09-1574-Q008", "sibling_text": "digital devices working", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a semiconductor, why silicon, and why is it called solid state?", "cross_family": true } ] }, { "qid": "KOL-2026-07-4288-Q001", "text": "Tanker how to take care of residual charge?", "family": "Cargo Ops - Tankers", "subtopic": "Static Electricity / Bonding", "tid": "KOL-2026-07-4288", "tray": "new", "candidates": [ { "answer_id": "TCM-374-006", "score": 0.606713593006134, "sibling_score": 0.606713593006134, "answer_score": 0.4393469154834747, "sibling_qid": "KOL-2019-05-0284-Q001", "sibling_text": "cargo stripping in tanker different types regulation for residual cargo amount in tank purge vent stripper", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Cargo stripping and tank residues (bellmouth and discharge limits)", "cross_family": false }, { "answer_id": "AII-DISCH-003", "score": 0.6022948622703552, "sibling_score": 0.6022948622703552, "answer_score": 0.49175025820732116, "sibling_qid": "MUM-2026-09-3905-Q002", "sibling_text": "in tanker cargo residue how you will discharge", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Preparation and procedure before discharging residues, including when the pump will not take suction", "cross_family": false }, { "answer_id": "TCM-374-004", "score": 0.5381218194961548, "sibling_score": 0.5381218194961548, "answer_score": null, "sibling_qid": "KOC-2023-08-0216-Q003", "sibling_text": "after dry dock how you prepare your tank for taking cargo", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Chemical-tank cleaning: Category X, solidifying/non-solidifying, and cargo changeover", "cross_family": false } ] }, { "qid": "KOL-2026-07-4288-Q004", "text": "there is no circuit diagram for electrical and having wire diagram how to find fault?", "family": "Electrical - Motors & Starters", "subtopic": "Single Phasing", "tid": "KOL-2026-07-4288", "tray": "review", "candidates": [ { "answer_id": "EF-DET-P01-003", "score": 0.7612298130989075, "sibling_score": 0.7612298130989075, "answer_score": 0.531641936302185, "sibling_qid": "KOL-2026-05-0017-Q004", "sibling_text": "how to find out fault in line if you don have circuit diagram onboard", "sibling_family": "", "via": "sibling", "answer_title": "Tracing and locating an earth fault or low-insulation fault on a 440V / 220V / deck circuit", "cross_family": false }, { "answer_id": "CONT-317-002", "score": 0.6697922945022583, "sibling_score": 0.6697922945022583, "answer_score": 0.5271428257226943, "sibling_qid": "KOL-2019-02-2260-Q005", "sibling_text": "how to find out short circuit in motor after i answered he asked if anything is to be done on terminals", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Checking a winding for open-circuit and short-circuit faults", "cross_family": false }, { "answer_id": "IRT-A-001", "score": 0.6543332934379578, "sibling_score": 0.6543332934379578, "answer_score": null, "sibling_qid": "KOC-2024-06-1367-Q007", "sibling_text": "draw megger diagram and explain", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "The megger - what it is and how it works", "cross_family": false } ] }, { "qid": "KOL-2026-07-4289-Q001", "text": "steering, have u heard of it?", "family": "Steering Gear & Hydraulics", "subtopic": "Steering Gear System", "tid": "KOL-2026-07-4289", "tray": "new", "candidates": [ { "answer_id": "STG-055-C-002", "score": 0.6249427199363708, "sibling_score": 0.6249427199363708, "answer_score": null, "sibling_qid": "KOC-2024-09-0412-Q004", "sibling_text": "steering gear regulations", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "SOLAS steering-gear requirements, tests and drills", "cross_family": false }, { "answer_id": "STEER-055-A-003", "score": 0.6158213019371033, "sibling_score": 0.6158213019371033, "answer_score": null, "sibling_qid": "MUM-2026-03-2593-Q002", "sibling_text": "steering gear hunting reasons", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Hunting gear, floating lever and buffer spring", "cross_family": false }, { "answer_id": "SG-055-B-002", "score": 0.6125529408454895, "sibling_score": 0.6125529408454895, "answer_score": null, "sibling_qid": "KOL-2018-12-1864-Q004", "sibling_text": "steering gear safeties explain", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Steering-gear alarms, trips and electrical / hydraulic safeties", "cross_family": false } ] }, { "qid": "KOL-2026-08-4162-Q001", "text": "Type of ship sailed ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2026-08-4162", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8455203175544739, "sibling_score": 0.8455203175544739, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8445307612419128, "sibling_score": 0.8445307612419128, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7924375534057617, "sibling_score": 0.7924375534057617, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "KOL-2026-08-4162-Q014S2", "text": "What is total power ?", "family": "Electrical - Generator & Alternator", "subtopic": "Active / Reactive / Apparent Power", "tid": "KOL-2026-08-4162", "tray": "review", "candidates": [ { "answer_id": "IND-CARD-B-003", "score": 0.6806418895721436, "sibling_score": 0.6806418895721436, "answer_score": 0.38410558104515075, "sibling_qid": "KOL-2026-05-0084-Q014", "sibling_text": "unit of power what is total power", "sibling_family": "", "via": "sibling", "answer_title": "Power calculation from the indicator / power card", "cross_family": false }, { "answer_id": "MIP-264-003", "score": 0.5655573606491089, "sibling_score": 0.5655573606491089, "answer_score": null, "sibling_qid": "KOC-2021-05-2022-Q021", "sibling_text": "power calculation in detail", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Calculate engine power: IHP and BHP, and where each is measured", "cross_family": true }, { "answer_id": "PERF-470-003", "score": 0.5552690029144287, "sibling_score": 0.5552690029144287, "answer_score": 0.38061969876289364, "sibling_qid": "MUM-2024-08-1090-Q008", "sibling_text": "power calculation", "sibling_family": "2-Stroke - 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Combustion, Power & Performance", "via": "sibling", "answer_title": "FIVA control signal, controller type, voice-coil drive and fail-safe behaviour", "cross_family": false }, { "answer_id": "RTFLEX-319-003", "score": 0.4328744411468506, "sibling_score": 0.4328744411468506, "answer_score": null, "sibling_qid": "KOL-2019-04-3232-Q002", "sibling_text": "ecu hcu acu ccu function", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Electronic control modules: WECS, FCM-20, ICU, VCU — and the MAN-ME contrast", "cross_family": false } ] }, { "qid": "KOL-2026-09-4290-Q005", "text": "How cantilever of propeller is take by tail shaft?", "family": "Drydock & Underwater Surveys", "subtopic": "Propeller / Pilgrim Nut", "tid": "KOL-2026-09-4290", "tray": "new", "candidates": [ { "answer_id": "PROP-PIL-A-001", "score": 0.6118250489234924, "sibling_score": 0.6118250489234924, "answer_score": 0.4442746937274933, "sibling_qid": "MUM-2022-07-1016-Q001", "sibling_text": "how to mount propeller on tail shaft", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Pilgrim / SKF hydraulic nut — fitting, push-up, extraction and removal", "cross_family": false }, { "answer_id": "PROP-PN-C-001", "score": 0.5834638476371765, "sibling_score": 0.5834638476371765, "answer_score": null, "sibling_qid": "KOL-2024-06-3699-Q006", "sibling_text": "what is arrangement made in propeller bush to have sufficient friction for torque transmission by the tail shaft how the sleeve is fitted inside the propeller boss what kind of fit told him the answer but wasn t satisfied", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Keyless propeller — sleeve, boss fit and material", "cross_family": false }, { "answer_id": "STS-P02-004", "score": 0.5815312266349792, "sibling_score": 0.5815312266349792, "answer_score": 0.4866875112056732, "sibling_qid": "CHE-2026-05-0548-Q004", "sibling_text": "tail shaft explain like stress material etc", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "STS-P02-04 - Tail shaft design, bearing materials and bending support", "cross_family": false } ] }, { "qid": "KOL-2026-09-4292-Q002", "text": "Auxiliary engine balancing?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Vibration / Balancing", "tid": "KOL-2026-09-4292", "tray": "review", "candidates": [ { "answer_id": "PERF-470-005", "score": 0.7085383534431458, "sibling_score": 0.7085383534431458, "answer_score": 0.5353220641613007, "sibling_qid": "KOL-2026-05-4244-Q006", "sibling_text": "power balancing of main engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main-engine power balancing — procedure", "cross_family": false }, { "answer_id": "MIP-264-005", "score": 0.7001960277557373, "sibling_score": 0.7001960277557373, "answer_score": 0.5035268902778626, "sibling_qid": "MUM-2026-06-3598-Q013", "sibling_text": "balancing of engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Power balancing using MIP/MEP and indicator-card data", "cross_family": false }, { "answer_id": "VIB-BAL-C-FINAL-1-003", "score": 0.6996986269950867, "sibling_score": 0.6996986269950867, "answer_score": null, "sibling_qid": "KOL-2025-12-4076-Q007", "sibling_text": "balancing of engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Static and Dynamic Balancing of the Crankshaft / Shaft", "cross_family": false } ] }, { "qid": "KOL-2026-09-4292-Q007", "text": "Break holding test? decider ques", "family": "Auxiliary Equipment", "subtopic": "Winch Brake Rendering Test", "tid": "KOL-2026-09-4292", "tray": "new", "candidates": [ { "answer_id": "WBRT-001", "score": 0.5517413020133972, "sibling_score": 0.5517413020133972, "answer_score": 0.31424412578344346, "sibling_qid": "MUM-2026-02-2585-Q001", "sibling_text": "break rendering test break test", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Carrying out a mooring-winch brake rendering test", "cross_family": false }, { "answer_id": "WBRT-002", "score": 0.5288845300674438, "sibling_score": 0.5288845300674438, "answer_score": null, "sibling_qid": "KOL-2025-11-3882-Q003", "sibling_text": "break rendering test why it is done how to carryout procedure and calculation", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Why 60%, and how the jack load and pressure are set", "cross_family": false }, { "answer_id": "WBRT-005", "score": 0.5213331580162048, "sibling_score": 0.5213331580162048, "answer_score": null, "sibling_qid": "KOL-2022-05-1685-Q008", "sibling_text": "what type of break in windlass and how to adjust it break rendering test", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Brake maintenance: lining, drum, pad fitting and adjustment", "cross_family": false } ] }, { "qid": "KOL-2026-09-4293-Q007", "text": "Start of Injection in AE?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "", "tid": "KOL-2026-09-4293", "tray": "new", "candidates": [ { "answer_id": "ICCP-119-P01-003", "score": 0.5010484457015991, "sibling_score": 0.5010484457015991, "answer_score": null, "sibling_qid": "MUM-2022-10-1363-Q005", "sibling_text": "current injection method purpose", "sibling_family": "Electrical - 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AE decarb / overhaul — preparation and full procedure", "cross_family": false } ] }, { "qid": "KOL-2026-09-4293-Q008", "text": "How to find end of injection?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Camshaft, Timing Gear / Valve Timing", "tid": "KOL-2026-09-4293", "tray": "new", "candidates": [ { "answer_id": "VIT-MECH-A-002", "score": 0.5300962924957275, "sibling_score": 0.5300962924957275, "answer_score": 0.2600062668323517, "sibling_qid": "CHE-2025-08-0186-Q001", "sibling_text": "vit working how beginning of injection and end of injection happening", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How VIT works — varying the start of injection on the fuel pump", "cross_family": true }, { "answer_id": "FIS-221-006", "score": 0.4716086983680725, "sibling_score": 0.4716086983680725, "answer_score": null, "sibling_qid": "KOL-2025-01-4046-Q009", "sibling_text": "how to know injection done", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Confirming that injection has taken place", "cross_family": true }, { "answer_id": "ICCP-119-P01-003", "score": 0.4449266791343689, "sibling_score": 0.4449266791343689, "answer_score": null, "sibling_qid": "MUM-2022-10-1363-Q005", "sibling_text": "current injection method purpose", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP values, impressed-current meaning, anode/cathode roles and materials", "cross_family": true } ] }, { "qid": "KOL-2026-09-4294-Q001", "text": "No of attempts, status of all writtens etc?", "family": "Status & Introduction", "subtopic": "", "tid": "KOL-2026-09-4294", "tray": "new", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.4610184133052826, "sibling_score": 0.4610184133052826, "answer_score": null, "sibling_qid": "MUM-2026-03-1294-Q001", "sibling_text": "status of writtens and orals", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": true }, { "answer_id": "EXHV-P01-001", "score": 0.43649226427078247, "sibling_score": 0.43649226427078247, "answer_score": null, "sibling_qid": "CHE-2026-01-0101-Q001", "sibling_text": "types of ship done and exam status", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "AIRP-188-005", "score": 0.3773217499256134, "sibling_score": 0.3773217499256134, "answer_score": null, "sibling_qid": "KOC-2026-02-0840-Q007", "sibling_text": "ods log what all entries", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "ODS Record Book and the IAPP equipment list — what and where?", "cross_family": true } ] }, { "qid": "KOL-2026-09-4294-Q005", "text": "Tell me 5 advantages of ME engines over MC?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Active / Reactive / Apparent Power", "tid": "KOL-2026-09-4294", "tray": "new", "candidates": [ { "answer_id": "MCC-MEB-P02-003", "score": 0.5560972690582275, "sibling_score": 0.5560972690582275, "answer_score": 0.40374662578105924, "sibling_qid": "KOC-2026-08-2155-Q014", "sibling_text": "differences between me mc engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Conventional MC / MC-C versus electronic ME — the practical operating differences", "cross_family": true }, { "answer_id": "EGTP-P02-005", "score": 0.5524285435676575, "sibling_score": 0.5524285435676575, "answer_score": 0.406778635084629, "sibling_qid": "CHE-2026-08-3882-Q001", "sibling_text": "difference between me and mc engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "MC / MC-C / ME-C and Electronically Controlled Engines", "cross_family": true }, { "answer_id": "MCC-MEB-P02-002", "score": 0.548079252243042, "sibling_score": 0.548079252243042, "answer_score": null, "sibling_qid": "KOL-2017-09-1325-Q002", "sibling_text": "me n mc engine differences design aspects", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "MAN B&W nomenclature — and what MC, MC-C, ME-B, ME-C actually mean", "cross_family": true } ] }, { "qid": "KOL-2026-09-4295-Q001", "text": "Types of ship sailed on?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2026-09-4295", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8130354285240173, "sibling_score": 0.8130354285240173, "answer_score": null, "sibling_qid": "CHE-2026-09-3938-Q001", "sibling_text": "types of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7873979210853577, "sibling_score": 0.7873979210853577, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7688922882080078, "sibling_score": 0.7688922882080078, "answer_score": null, "sibling_qid": "CHE-2026-03-0253-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "KOL-2026-09-4295-Q008", "text": "Bumping clearance of compressor how will you measure and size of lead wire you will put?", "family": "2-Stroke - Components (Other)", "subtopic": "Running Clearances (Bumping/Jumping)", "tid": "KOL-2026-09-4295", "tray": "review", "candidates": [ { "answer_id": "MAC-353-008", "score": 0.8188871741294861, "sibling_score": 0.8188871741294861, "answer_score": 0.45760751962661744, "sibling_qid": "MUM-2026-03-2944-Q008", "sibling_text": "what is diameter of lead wire used for taking bumping clearance of compressor", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Taking bumping clearance without opening the cylinder (lead-ball method)", "cross_family": false }, { "answer_id": "FCAM-LEAD-P04-001", "score": 0.5843194723129272, "sibling_score": 0.5843194723129272, "answer_score": null, "sibling_qid": "KOL-2025-05-3781-Q004", "sibling_text": "pump lead cam lead how to measure", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel cam lead, cam profile, negative cam and cam slip", "cross_family": true }, { "answer_id": "SB-PRG-B-002", "score": 0.5518873333930969, "sibling_score": 0.5518873333930969, "answer_score": null, "sibling_qid": "CHE-2026-03-0489-Q009", "sibling_text": "stuffing box in place overhaul clearances how to measure the spring if ring end clearance is less what will you do", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Worn rings, springs, O-rings and no-spare actions", "cross_family": false } ] }, { "qid": "KOL-2026-09-4296-Q007", "text": "why boiler pump shaft seal broken?", "family": "Boilers - Feed Water & Water Treatment", "subtopic": "", "tid": "KOL-2026-09-4296", "tray": "new", "candidates": [ { "answer_id": "PCD-P02-05", "score": 0.620331883430481, "sibling_score": 0.620331883430481, "answer_score": null, "sibling_qid": "KOL-2021-10-1637-Q004", "sibling_text": "centrifugal pump shaft worn out and leaking air at the gland position explain the repair if you don t have spare shaft", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Centrifugal / sea-water pump shaft repair — worn shaft, no spare", "cross_family": true }, { "answer_id": "CPFE-583-007", "score": 0.6169066429138184, "sibling_score": 0.6169066429138184, "answer_score": null, "sibling_qid": "CHE-2026-03-0494-Q004", "sibling_text": "boiler feed pump not making pr why will post more questions if i remember internal po external ilamathivannan internal s s moorthy", "sibling_family": "Boilers - Feed Water & Water Treatment", "via": "sibling", "answer_title": "Pressure not building — and purging the hydraulic system", "cross_family": false }, { "answer_id": "PUMP-CAS-003", "score": 0.5980522632598877, "sibling_score": 0.5980522632598877, "answer_score": null, "sibling_qid": "KOC-2024-12-1886-Q009", "sibling_text": "pump casing leak", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "03. Pump casing leak, thinning or crack — actions and repair", "cross_family": true } ] }, { "qid": "KOL-2026-09-4296-Q008", "text": "Holding Down bold found fretting corrosion what will you do as 2nd engineer?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "White Metal & Material", "tid": "KOL-2026-09-4296", "tray": "new", "candidates": [ { "answer_id": "WMAT-170-007", "score": 0.5893223285675049, "sibling_score": 0.5893223285675049, "answer_score": null, "sibling_qid": "MUM-2026-06-3396-Q008", "sibling_text": "fretting corrosion", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Tin-oxide corrosion of white metal and its prevention", "cross_family": false }, { "answer_id": "CFF-P02-006", "score": 0.5729703903198242, "sibling_score": 0.5729703903198242, "answer_score": null, "sibling_qid": "MUM-2025-11-2866-Q009", "sibling_text": "what is corrosion fatigue examples remedies actions as 2e", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Corrosion fatigue", "cross_family": true }, { "answer_id": "TBR-TT-P02-002", "score": 0.5602570176124573, "sibling_score": 0.5602570176124573, "answer_score": null, "sibling_qid": "MUM-2026-07-3763-Q008", "sibling_text": "how to check tightness of holding down bolt selective corrosion how to prevent", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Checking tie rod tightness / slackness — stopped and running", "cross_family": true } ] }, { "qid": "KOL-2026-09-4297-Q001", "text": "Oros cylinder what is it ?", "family": "2-Stroke - Components (Other)", "subtopic": "Piston (Crown/Skirt/Inspection)", "tid": "KOL-2026-09-4297", "tray": "new", "candidates": [ { "answer_id": "CYL-LINER-P02-004", "score": 0.547702968120575, "sibling_score": 0.547702968120575, "answer_score": null, "sibling_qid": "KOL-2026-01-4081-Q003", "sibling_text": "one unit cylinder liner oval reason", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L4 · T044-PART_02-G004High", "cross_family": false }, { "answer_id": "PIST-CSI-A-001", "score": 0.5344679355621338, "sibling_score": 0.5344679355621338, "answer_score": 0.33539797067642213, "sibling_qid": "KOL-2018-01-1339-Q003", "sibling_text": "oros type piston", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Oros combustion chamber, high top land and modern 2-stroke piston development", "cross_family": false }, { "answer_id": "CYL-LINER-P04-002", "score": 0.5173410773277283, "sibling_score": 0.5173410773277283, "answer_score": 0.32582357376813886, "sibling_qid": "KOL-2021-11-3490-Q002", "sibling_text": "me cylinder liner o h", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Judging, measuring, removing & discarding a cylinder liner", "cross_family": false } ] }, { "qid": "KOL-2026-09-4298-Q001", "text": "Function 3... Safety Type of vessels sailed on?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2026-09-4298", "tray": "review", "candidates": [ { "answer_id": "ESP-A-002", "score": 0.6582527756690979, "sibling_score": 0.6582527756690979, "answer_score": null, "sibling_qid": "KOL-2025-07-0982-Q013", "sibling_text": "3 which type of vessel under esp", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "On which ships is ESP applicable, under which statutory framework, and when is it carried out?", "cross_family": true }, { "answer_id": "MR-DS-PV-B-003", "score": 0.6256413459777832, "sibling_score": 0.6256413459777832, "answer_score": null, "sibling_qid": "KOC-2024-02-0298-Q002", "sibling_text": "which type of ship explain ig safeties on deck", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "3. Alarms, trips, valves, and abnormal conditions of the deck seal", "cross_family": true }, { "answer_id": "COT-P02-06", "score": 0.625598132610321, "sibling_score": 0.625598132610321, "answer_score": null, "sibling_qid": "KOL-2024-11-0889-Q001", "sibling_text": "which type of ship sailed ig blowers safety", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Explain the inert-gas blower arrangement, required capacity, pressure control, redundancy and safeguards.", "cross_family": true } ] }, { "qid": "KOL-2026-09-4299-Q001", "text": "Which type of engine done?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "KOL-2026-09-4299", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.8014761805534363, "sibling_score": 0.8014761805534363, "answer_score": null, "sibling_qid": "KOL-2026-03-2048-Q001", "sibling_text": "type of engine done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.7077358365058899, "sibling_score": 0.7077358365058899, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "EGTP-P02-009", "score": 0.4056340605020523, "sibling_score": null, "answer_score": 0.4056340605020523, "sibling_qid": "", "sibling_text": "engine development and efficiency improvements super long stroke low rpm large efficient propeller better propulsive and thermal efficiency high efficiency turbocharging with maker specific matching tuning exhaust gas bypass variable turbine area turbocharger cut out where fitted two stage only where fitted better air supply part load and sfoc", "sibling_family": "", "via": "answer_title", "answer_title": "Engine Development and Efficiency Improvements", "cross_family": false } ] }, { "qid": "KOL-2026-09-4300-Q001", "text": "Type of engine and vessel?", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "KOL-2026-09-4300", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8264291882514954, "sibling_score": 0.8264291882514954, "answer_score": null, "sibling_qid": "CHE-2026-03-0255-Q001", "sibling_text": "type of vessel and engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.7951579689979553, "sibling_score": 0.7951579689979553, "answer_score": null, "sibling_qid": "MUM-2026-07-3668-Q004", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7638691663742065, "sibling_score": 0.7638691663742065, "answer_score": null, "sibling_qid": "KOL-2025-12-2031-Q002", "sibling_text": "type of ship and engine sailed engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "KOL-2026-09-4300-Q003", "text": " When VEC will close, what happens to Exhaust temp?", "family": "", "subtopic": "", "tid": "KOL-2026-09-4300", "tray": "new", "candidates": [ { "answer_id": "EXH-T-HI-002", "score": 0.5760071873664856, "sibling_score": 0.5760071873664856, "answer_score": null, "sibling_qid": "KOC-2026-02-0807-Q012", "sibling_text": "one unit exhaust temp increase ur actions exh valve open early how to find out", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "One unit exhaust temperature high — causes, checks and actions", "cross_family": false }, { "answer_id": "IND-CARD-006", "score": 0.5512758493423462, "sibling_score": 0.5512758493423462, "answer_score": null, "sibling_qid": "MUM-2024-11-0966-Q006", "sibling_text": "n what happened to exhaust temperature n pcomp", "sibling_family": "2-Stroke - 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Decider: power card and explanation", "family": "Boilers - Safety & Survey", "subtopic": "Boiler Chemicals", "tid": "KOL-2026-09-4300", "tray": "new", "candidates": [ { "answer_id": "BLR-CHEM-002", "score": 0.5864459276199341, "sibling_score": 0.5864459276199341, "answer_score": 0.37781788110733033, "sibling_qid": "KOL-2017-06-1850-Q004", "sibling_text": "caustic embrittlement reasons nd methods to reduce name a chemical to reduce content of sodium hydroxide", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "2. Caustic embrittlement", "cross_family": false }, { "answer_id": "BWT-B-001", "score": 0.5442454814910889, "sibling_score": 0.5442454814910889, "answer_score": null, "sibling_qid": "KOL-2025-01-4044-Q012", "sibling_text": "what is caustic embrittlement and how to avoid", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Why are P, T and M alkalinity tests done in boiler water, and how are the results read?", "cross_family": false }, { "answer_id": "CORR-DEZ-002", "score": 0.32604145407676693, "sibling_score": null, "answer_score": 0.32604145407676693, "sibling_qid": "", "sibling_text": "how can dezincification be avoided primary defence is material selection not environment tweaking inhibited arsenical dzr brass small as addition 0 02 0 06 per alloy standard suppresses leaching", "sibling_family": "", "via": "answer_title", "answer_title": "How can dezincification be avoided?", "cross_family": false } ] }, { "qid": "KOL-2026-09-4302-Q005", "text": "What we are using in MIG?", "family": "Workshop & Welding", "subtopic": "Plasma / Arc / TIG / MIG", "tid": "KOL-2026-09-4302", "tray": "new", "candidates": [ { "answer_id": "CTRL-TL-002", "score": 0.409201055765152, "sibling_score": 0.409201055765152, "answer_score": null, "sibling_qid": "KOL-2022-10-1926-Q005", "sibling_text": "used where", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Function of a controller, and types used on board", "cross_family": true }, { "answer_id": "MGPS-001", "score": 0.4079365134239197, "sibling_score": 0.4079365134239197, "answer_score": null, "sibling_qid": "MUM-2025-12-1839-Q002", "sibling_text": "mgps working", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "Explain the MGPS — purpose, working principle, layout, and how it prevents marine growth", "cross_family": true }, { "answer_id": "MEGI-304-002", "score": 0.4031885862350464, "sibling_score": 0.4031885862350464, "answer_score": null, "sibling_qid": "KOL-2026-01-2036-Q001", "sibling_text": "what is me g", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "2. ME-GI / ME-GA / ME-G and recent dual-fuel engine advancements", "cross_family": true } ] }, { "qid": "KOL-2026-09-4303-Q001", "text": "Programming of AI powered engines?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "ME-GI / Dual Fuel", "tid": "KOL-2026-09-4303", "tray": "new", "candidates": [ { "answer_id": "MCC-MEB-P02-004", "score": 0.6322854161262512, "sibling_score": 0.6322854161262512, "answer_score": 0.3273598313331604, "sibling_qid": "KOL-2019-10-1489-Q001", "sibling_text": "intelligent engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What an intelligent (smart) ME engine is, and why owners prefer it", "cross_family": false }, { "answer_id": "MCC-MEB-P02-001", "score": 0.5871767401695251, "sibling_score": 0.5871767401695251, "answer_score": null, "sibling_qid": "MUM-2026-07-3762-Q017", "sibling_text": "development on me engines", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Trace the development from MC / SMC engines to MC-C and ME engines", "cross_family": false }, { "answer_id": "CPP-ATC-03", "score": 0.34876995980739595, "sibling_score": null, "answer_score": 0.34876995980739595, "sibling_qid": "", "sibling_text": "main engine auto tuning purpose method and running procedure auto tuning electronic combustion balance and trim on me family engines man b w everllence terminology two generations on man pmi auto tuning earlier operator initiated from the mop stated25 100 load range andpmi adaptive cylinder control acco current continuous closed loop always activatedabove 10 stated10 100 range", "sibling_family": "", "via": "answer_title", "answer_title": "Main-engine auto-tuning — purpose, method and running procedure", "cross_family": false } ] }, { "qid": "KOL-2026-09-4304-Q001", "text": "Type of ship?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2026-09-4304", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8364932537078857, "sibling_score": 0.8364932537078857, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.801879346370697, "sibling_score": 0.801879346370697, "answer_score": 0.547000914812088, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8004297018051147, "sibling_score": 0.8004297018051147, "answer_score": 0.5217102825641632, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "KOL-2026-09-4304-Q002", "text": "CCU from where sensing signal and details?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "PT / CT", "tid": "KOL-2026-09-4304", "tray": "new", "candidates": [ { "answer_id": "MEB-MEC-P03-002", "score": 0.48365285992622375, "sibling_score": 0.48365285992622375, "answer_score": null, "sibling_qid": "KOL-2026-02-1830-Q001", "sibling_text": "function of ccu", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "ME camless control architecture — ECS, CCU, EICU, MPC", "cross_family": true }, { "answer_id": "FIVA-220-003", "score": 0.44953352212905884, "sibling_score": 0.44953352212905884, "answer_score": null, "sibling_qid": "KOL-2026-07-4280-Q003", "sibling_text": "about ecu ccu fiva what signals are sent from ecu to ccu", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "FIVA control signal, controller type, voice-coil drive and fail-safe behaviour", "cross_family": true }, { "answer_id": "TPL-SENS-006", "score": 0.4353831708431244, "sibling_score": 0.4353831708431244, "answer_score": null, "sibling_qid": "CHE-2025-08-0283-Q005", "sibling_text": "cross float sensor type cascade control system internal deciding", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Float-type level sensors — types and working", "cross_family": false } ] }, { "qid": "KOL-2026-09-4305-Q003", "text": "SPEED DROOP SETTING?", "family": "Automation & Controls", "subtopic": "Governor (Mechanical / Electronic)", "tid": "KOL-2026-09-4305", "tray": "new", "candidates": [ { "answer_id": "DROOP-001", "score": 0.6439951062202454, "sibling_score": 0.6439951062202454, "answer_score": 0.43743956983089444, "sibling_qid": "MUM-2026-05-3130-Q004", "sibling_text": "speed droop", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Governor / speed droop — what, why, setting and formula", "cross_family": false }, { "answer_id": "GOV-P03-002", "score": 0.6419466137886047, "sibling_score": 0.6419466137886047, "answer_score": 0.4125316023826599, "sibling_qid": "CHE-2026-09-3919-Q003", "sibling_text": "speed droop and how to adjust manually", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Droop, isochronous operation and load sharing", "cross_family": false }, { "answer_id": "DROOP-002", "score": 0.6092056035995483, "sibling_score": 0.6092056035995483, "answer_score": null, "sibling_qid": "KOL-2026-04-2057-Q003", "sibling_text": "speed droop characteristics", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Speed-droop characteristic — the curve and what it shows", "cross_family": false } ] }, { "qid": "KOL-2026-09-4309-Q001", "text": "Filter Circuit and its use? ", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Electronic Circuits / Filters", "tid": "KOL-2026-09-4309", "tray": "new", "candidates": [ { "answer_id": "EPC-P02-06", "score": 0.5852439999580383, "sibling_score": 0.5852439999580383, "answer_score": 0.3545275628566742, "sibling_qid": "CHE-2025-08-0269-Q005", "sibling_text": "define harmonic filter", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What are harmonics, where does the high voltage / distortion come from, and what is a harmonic filter — define, use and where fitted?", "cross_family": false }, { "answer_id": "TC-A-009", "score": 0.5830729603767395, "sibling_score": 0.5830729603767395, "answer_score": null, "sibling_qid": "KOL-2019-07-2307-Q004", "sibling_text": "resonance and filter circuit", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "The LC circuit, resonance and the oscillator", "cross_family": false }, { "answer_id": "RAC-MAT-320-004", "score": 0.5540008544921875, "sibling_score": 0.5540008544921875, "answer_score": null, "sibling_qid": "KOL-2018-08-1403-Q007", "sibling_text": "filter in a c system", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "4. AHU maintenance, filters and pre-climate-change checks", "cross_family": true } ] }, { "qid": "KOL-2026-09-4309-Q002", "text": "How inductor is filtering Why, How , Basics ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Electronic Circuits / Filters", "tid": "KOL-2026-09-4309", "tray": "new", "candidates": [ { "answer_id": "TC-A-008", "score": 0.5666595101356506, "sibling_score": 0.5666595101356506, "answer_score": 0.5422306001186371, "sibling_qid": "KOL-2025-09-2861-Q007", "sibling_text": "what is an inductor key ans coiled conductor which resists change in current through it", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "The inductor and the filter choke — and inductance in an HV system", "cross_family": false }, { "answer_id": "EPC-P02-06", "score": 0.5271812081336975, "sibling_score": 0.5271812081336975, "answer_score": 0.37826957553625107, "sibling_qid": "CHE-2025-08-0269-Q005", "sibling_text": "define harmonic filter", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What are harmonics, where does the high voltage / distortion come from, and what is a harmonic filter — define, use and where fitted?", "cross_family": false }, { "answer_id": "TC-A-009", "score": 0.5232155919075012, "sibling_score": 0.5232155919075012, "answer_score": null, "sibling_qid": "KOL-2019-07-2307-Q004", "sibling_text": "resonance and filter circuit", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "The LC circuit, resonance and the oscillator", "cross_family": false } ] }, { "qid": "KOL-2026-09-4312-Q002", "text": "What is the carbon percentage in cast iron?", "family": "Workshop & Welding", "subtopic": "Cast Iron Welding", "tid": "KOL-2026-09-4312", "tray": "new", "candidates": [ { "answer_id": "SGB-212-002", "score": 0.617072343826294, "sibling_score": 0.617072343826294, "answer_score": null, "sibling_qid": "KOC-2025-04-1911-Q005", "sibling_text": "carbon content in stainless steel and cast iron", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Stainless steel — composition and the role of Cr, Ni, C", "cross_family": true }, { "answer_id": "ICD-065-003", "score": 0.6010323762893677, "sibling_score": 0.6010323762893677, "answer_score": 0.540045666694641, "sibling_qid": "MUM-2026-02-1255-Q004", "sibling_text": "percentage of c in cementite", "sibling_family": "Materials & Metallurgy", "via": "sibling", "answer_title": "What percentage of carbon is in cementite?", "cross_family": true }, { "answer_id": "ICD-065-001", "score": 0.5908722281455994, "sibling_score": 0.5908722281455994, "answer_score": 0.44213773906230924, "sibling_qid": "MUM-2026-06-3356-Q001", "sibling_text": "iron carbide diagram draw percentage of carbon in ferrite austenite perlite etc etc", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Draw and explain the iron-carbon diagram in full detail", "cross_family": true } ] }, { "qid": "KOL-2026-09-4312-Q003", "text": "What is slugging in a refrigeration compressor?", "family": "Refrigeration & AC", "subtopic": "Reefer Compressor", "tid": "KOL-2026-09-4312", "tray": "new", "candidates": [ { "answer_id": "CCSC-314-001", "score": 0.565346896648407, "sibling_score": 0.565346896648407, "answer_score": 0.3933915227651596, "sibling_qid": "KOC-2024-08-1001-Q008", "sibling_text": "refer compressor short cycling reasoning", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Refrigeration compressor short cycling — meaning, causes and corrective action", "cross_family": false }, { "answer_id": "REEF-COMP-003", "score": 0.5331300497055054, "sibling_score": 0.5331300497055054, "answer_score": null, "sibling_qid": "MUM-2024-06-1081-Q007", "sibling_text": "lo properties of refrigeration compressor", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Refrigeration-compressor lube oil — properties, selection, and its jobs beyond lubrication", "cross_family": false }, { "answer_id": "REEF-COMP-009", "score": 0.5257405042648315, "sibling_score": 0.5257405042648315, "answer_score": 0.3921088382601738, "sibling_qid": "KOL-2025-10-3865-Q004", "sibling_text": "sluggish operation of fridge compressor 5 how steam is produced in egb all cross question", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Confirming a reefer/AC (MAC) compressor runs well on rounds — high current, sluggish, won't-load faults", "cross_family": false } ] }, { "qid": "KOL-2026-09-4312-Q005", "text": "What is the Dynamic Limiter and its function?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Injection System", "tid": "KOL-2026-09-4312", "tray": "new", "candidates": [ { "answer_id": "BCME-003", "score": 0.47718629240989685, "sibling_score": 0.47718629240989685, "answer_score": 0.3087732046842575, "sibling_qid": "MUM-2023-12-1068-Q008", "sibling_text": "what are the limiters and why are they provided", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Bridge-control safeties, limiters, ECS load/speed sensing and control-panel checks", "cross_family": true }, { "answer_id": "SCAV-323-P02-004", "score": 0.41673341393470764, "sibling_score": 0.41673341393470764, "answer_score": null, "sibling_qid": "KOL-2023-02-4019-Q010", "sibling_text": "scavenge limiter why and what it limits", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Auxiliary blower, air cooler and scavenge-air limiter", "cross_family": true }, { "answer_id": "TC-CS-P01-008", "score": 0.3954685926437378, "sibling_score": 0.3954685926437378, "answer_score": null, "sibling_qid": "MUM-2026-06-3621-Q008", "sibling_text": "static dynamic balancing", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "H·Static and dynamic balancing of the turbocharger rotor", "cross_family": true } ] }, { "qid": "KOL-2026-09-4312-Q006", "text": "How much can the Dynamic Limiter increase / percentage?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Injection System", "tid": "KOL-2026-09-4312", "tray": "new", "candidates": [ { "answer_id": "PMAX-PCOMP-BF041-001", "score": 0.48429906368255615, "sibling_score": 0.48429906368255615, "answer_score": null, "sibling_qid": "CHE-2026-02-0112-Q002", "sibling_text": "why are we increasing pmax", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What is Pmax, what is its significance, and why do we want to increase it?", "cross_family": true }, { "answer_id": "BCME-003", "score": 0.4782522916793823, "sibling_score": 0.4782522916793823, "answer_score": null, "sibling_qid": "MUM-2023-12-1068-Q008", "sibling_text": "what are the limiters and why are they provided", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Bridge-control safeties, limiters, ECS load/speed sensing and control-panel checks", "cross_family": true }, { "answer_id": "COT-P03-01", "score": 0.47796231508255005, "sibling_score": 0.47796231508255005, "answer_score": null, "sibling_qid": "CHE-2025-11-0082-Q005", "sibling_text": "threshold limit", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "H₂S, benzene and toxic-cargo vapour exposure — hazards, limits, PPE and respirator checks", "cross_family": true } ] }, { "qid": "KOL-2026-09-4312-Q007", "text": "What is graphite grease used for when seawater is present?", "family": "Drydock & Underwater Surveys", "subtopic": "Stern Tube / Tail Shaft", "tid": "KOL-2026-09-4312", "tray": "review", "candidates": [ { "answer_id": "STERN-TUBE-P04-001", "score": 0.7736164331436157, "sibling_score": 0.7736164331436157, "answer_score": null, "sibling_qid": "KOL-2026-09-4312-Q009", "sibling_text": "what happens if graphite grease is used where seawater is present", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Stern tube or seal leakage at sea: diagnosis and 2/E actions", "cross_family": false }, { "answer_id": "HULL-PAINT-005", "score": 0.4945005476474762, "sibling_score": 0.4945005476474762, "answer_score": null, "sibling_qid": "KOC-2023-05-0189-Q003", "sibling_text": "antifouling paint signa coating", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Anti-fouling and silicone (foul-release) coatings, the AFS Convention, and current developments", "cross_family": false }, { "answer_id": "STS-P02-006", "score": 0.48369401693344116, "sibling_score": 0.48369401693344116, "answer_score": null, "sibling_qid": "MUM-2026-02-2575-Q002", "sibling_text": "changing of stern tube seal at sea", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "STS-P02-06 - Stern tube seals, integrity test, sleeve wasting and afloat repair", "cross_family": false } ] }, { "qid": "KOL-2026-09-4312-Q008", "text": "What are the disadvantages of graphite grease?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "MOSFET / IGBT / BJT", "tid": "KOL-2026-09-4312", "tray": "new", "candidates": [ { "answer_id": "STERN-TUBE-P04-001", "score": 0.6279470920562744, "sibling_score": 0.6279470920562744, "answer_score": null, "sibling_qid": "KOL-2026-09-4312-Q009", "sibling_text": "what happens if graphite grease is used where seawater is present", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Stern tube or seal leakage at sea: diagnosis and 2/E actions", "cross_family": true }, { "answer_id": "LO-TEST-P02-003", "score": 0.49666324257850647, "sibling_score": 0.49666324257850647, "answer_score": null, "sibling_qid": "MUM-2023-02-2164-Q009", "sibling_text": "lub oil have microdegrad your action", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Abnormal LO condition: sump rise, colour, high temperature/pressure, lacquer, deterioration", "cross_family": true }, { "answer_id": "LO-TEST-P02-001", "score": 0.4854508936405182, "sibling_score": 0.4854508936405182, "answer_score": null, "sibling_qid": "KOL-2024-07-1785-Q003", "sibling_text": "undesirable properties of fresh lube oil what additives to add", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Lube-oil additives; detergency, dispersancy, lubricity and friction modifiers", "cross_family": true } ] }, { "qid": "KOL-2026-09-4312-Q011", "text": "How can the PID be set if it malfunctions?", "family": "Automation & Controls", "subtopic": "PID / Two-Step / Ratio Control", "tid": "KOL-2026-09-4312", "tray": "new", "candidates": [ { "answer_id": "PID-CTRL-001", "score": 0.5741444230079651, "sibling_score": 0.5741444230079651, "answer_score": 0.30733156204223633, "sibling_qid": "KOC-2023-03-0924-Q007", "sibling_text": "explain actual definition of pid", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "What a PID controller is and how it works", "cross_family": false }, { "answer_id": "AUC-CTL-02", "score": 0.5574138760566711, "sibling_score": 0.5574138760566711, "answer_score": 0.32898041903972625, "sibling_qid": "KOC-2024-02-1331-Q005", "sibling_text": "pid how to adjust", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "PID tuning and dynamic response", "cross_family": false }, { "answer_id": "PID-CTRL-003", "score": 0.5512426495552063, "sibling_score": 0.5512426495552063, "answer_score": null, "sibling_qid": "MUM-2024-11-2776-Q009", "sibling_text": "what is p in pid", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Proportional gain and proportional band", "cross_family": false } ] }, { "qid": "KOL-2026-09-4312-Q014", "text": "Why can air enter when the hydraulic-oil level is low?", "family": "Automation & Controls", "subtopic": "Level Sensor / Instrumentation Fault", "tid": "KOL-2026-09-4312", "tray": "new", "candidates": [ { "answer_id": "AUC-SEN-03", "score": 0.592656672000885, "sibling_score": 0.592656672000885, "answer_score": null, "sibling_qid": "MUM-2022-10-1359-Q006", "sibling_text": "low oil level in framo action sensor is ok but level is ok then action", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "False low-oil-level alarm on a Framo hydraulic power pack — how you diagnose it", "cross_family": false }, { "answer_id": "STEER-055-A-004", "score": 0.5456910729408264, "sibling_score": 0.5456910729408264, "answer_score": 0.5353705495595932, "sibling_qid": "KOL-2026-09-4312-Q013", "sibling_text": "how can air enter the steering gear hydraulic system", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Hydraulic faults — air, sluggish response, locking, leakage", "cross_family": true }, { "answer_id": "PURIF-172-004", "score": 0.5430052876472473, "sibling_score": 0.5430052876472473, "answer_score": null, "sibling_qid": "MUM-2024-11-2779-Q004", "sibling_text": "ae lub oil level going down one fine morning reasons wants to hear purifier leaked", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Overflow, leakage & water-in-oil troubleshooting", "cross_family": true } ] }, { "qid": "KOL-2026-09-4312-Q015", "text": "What is riding/dragging of an anchor?", "family": "Auxiliary Equipment", "subtopic": "Anchor / Anchor Chain", "tid": "KOL-2026-09-4312", "tray": "new", "candidates": [ { "answer_id": "ANCHR-B-003", "score": 0.5505519509315491, "sibling_score": 0.5505519509315491, "answer_score": null, "sibling_qid": "MUM-2026-07-3762-Q001", "sibling_text": "ranging of anchor", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Ranging the cable — what it is, why, and the parts", "cross_family": false }, { "answer_id": "ANCHR-B-002", "score": 0.5264658331871033, "sibling_score": 0.5264658331871033, "answer_score": null, "sibling_qid": "KOL-2020-10-0434-Q006", "sibling_text": "checks on anchor in dd", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Anchor & cable survey in dry dock — the systematic inspection", "cross_family": false }, { "answer_id": "WIND-WNCH-010", "score": 0.4962001442909241, "sibling_score": 0.4962001442909241, "answer_score": null, "sibling_qid": "KOC-2024-09-1862-Q006", "sibling_text": "routines done on anchor windlass", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Survey prep, checks, routines and maintenance", "cross_family": false } ] }, { "qid": "KOL-2026-09-4312-Q016", "text": "How do we prevent riding/dragging of anchor?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Vibration / Balancing", "tid": "KOL-2026-09-4312", "tray": "new", "candidates": [ { "answer_id": "ANCHR-B-002", "score": 0.5336476564407349, "sibling_score": 0.5336476564407349, "answer_score": null, "sibling_qid": "KOL-2020-10-0434-Q006", "sibling_text": "checks on anchor in dd", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Anchor & cable survey in dry dock — the systematic inspection", "cross_family": true }, { "answer_id": "ANCHR-B-003", "score": 0.5084075927734375, "sibling_score": 0.5084075927734375, "answer_score": null, "sibling_qid": "MUM-2024-09-2240-Q003", "sibling_text": "anchor ranging checks", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Ranging the cable — what it is, why, and the parts", "cross_family": true }, { "answer_id": "ANCH-C-005", "score": 0.4556812047958374, "sibling_score": 0.4556812047958374, "answer_score": 0.34155842810869214, "sibling_qid": "KOC-2022-04-1784-Q002", "sibling_text": "anchor not heaving up reasons", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Anchor not heaving up — reasons & actions", "cross_family": true } ] }, { "qid": "KOL-2026-09-4312-Q019", "text": "What is toroidal wear?", "family": "Drydock & Underwater Surveys", "subtopic": "Crane Rocking / Load Test", "tid": "KOL-2026-09-4312", "tray": "new", "candidates": [ { "answer_id": "CRANE-ROCK-LT-004", "score": 0.5727238655090332, "sibling_score": 0.5727238655090332, "answer_score": null, "sibling_qid": "KOL-2025-10-3868-Q002", "sibling_text": "toroidal wear in crane", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Slew bearing type and toroidal wear behind the rocking/racking test", "cross_family": false }, { "answer_id": "WRG-004", "score": 0.441858172416687, "sibling_score": 0.441858172416687, "answer_score": null, "sibling_qid": "KOL-2017-01-1260-Q005", "sibling_text": "factors causing wear of wear ring", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Why wear rings wear, why they wear out frequently, and reusing an over-clearance ring with no spare on board", "cross_family": true }, { "answer_id": "SGD-003", "score": 0.44055649638175964, "sibling_score": 0.44055649638175964, "answer_score": null, "sibling_qid": "KOL-2025-01-1964-Q014", "sibling_text": "if shaft grounding not working what is the wear called torsional vibration how to reduce", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "How are static charges produced in shafting, and what damage occurs if shaft grounding is ineffective?", "cross_family": true } ] }, { "qid": "KOL-2026-09-4312-Q020", "text": "What precautions are required before running a newly installed gearbox?", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "KOL-2026-09-4312", "tray": "new", "candidates": [ { "answer_id": "MN-BRG-C-001", "score": 0.5722755193710327, "sibling_score": 0.5722755193710327, "answer_score": null, "sibling_qid": "KOL-2025-08-3849-Q002", "sibling_text": "main bearing survey how to check 2 bottom half of jounral without opening the bottom bearing cover new gearbox installed what is the precaution at the time", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Opening, removing and overhauling a main bearing", "cross_family": true }, { "answer_id": "TG-MOTOR-007", "score": 0.55682373046875, "sibling_score": 0.55682373046875, "answer_score": null, "sibling_qid": "KOL-2017-01-3023-Q003", "sibling_text": "precautions befor turning turning gear", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What precautions do you take before engaging and turning the turning gear?", "cross_family": true }, { "answer_id": "RGEAR-003", "score": 0.5357658863067627, "sibling_score": 0.5357658863067627, "answer_score": 0.5145362168550491, "sibling_qid": "KOL-2026-05-4096-Q006", "sibling_text": "gear box renewed what checks to be carried out", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Checks to carry out after a gearbox is renewed", "cross_family": true } ] }, { "qid": "KOL-2026-09-4313-Q004", "text": "S/G Feedback mechanism Fails Action ?", "family": "Steering Gear & Hydraulics", "subtopic": "", "tid": "KOL-2026-09-4313", "tray": "new", "candidates": [ { "answer_id": "IGAT-583-004", "score": 0.5427902340888977, "sibling_score": 0.5427902340888977, "answer_score": null, "sibling_qid": "KOC-2021-07-0013-Q006", "sibling_text": "ig fail what action int", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "As Second Engineer, what actions do you take if the inert gas plant of a crude oil tanker is repeatedly tripping on IG high temperature?", "cross_family": true }, { "answer_id": "TLM-218-004", "score": 0.5190949440002441, "sibling_score": 0.5190949440002441, "answer_score": null, "sibling_qid": "MUM-2026-09-3915-Q010", "sibling_text": "telemotor failure your action", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Telemotor fails — how to keep steering", "cross_family": false }, { "answer_id": "CTRL-004", "score": 0.4996910095214844, "sibling_score": 0.4996910095214844, "answer_score": 0.3303827717900276, "sibling_qid": "KOC-2022-05-1183-Q003", "sibling_text": "negative feed back explain", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Feedback in control systems — negative and positive", "cross_family": true } ] }, { "qid": "KOL-2026-09-4314-Q004", "text": "How do you check the operating water and sealing water pressure for the purifier?", "family": "Purifier & Centrifuges", "subtopic": "Purifier Operation / Bowl", "tid": "KOL-2026-09-4314", "tray": "new", "candidates": [ { "answer_id": "PURIF-172-003", "score": 0.6037066578865051, "sibling_score": 0.6037066578865051, "answer_score": null, "sibling_qid": "KOC-2026-01-1987-Q003", "sibling_text": "how to check alcap purifier transducer when the purifier is running", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "ALCAP and the water transducer", "cross_family": false }, { "answer_id": "TPL-SENS-005", "score": 0.5934891700744629, "sibling_score": 0.5934891700744629, "answer_score": null, "sibling_qid": "KOC-2023-07-0195-Q012", "sibling_text": "pressure transmitter how to check", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Checking a pressure transmitter on board", "cross_family": true }, { "answer_id": "CO2-SYS-002", "score": 0.5794320106506348, "sibling_score": 0.5794320106506348, "answer_score": null, "sibling_qid": "KOC-2026-04-0916-Q018", "sibling_text": "how to pressure test the system at what pressure is it tested relief valve pressure setting in the line", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 maintenance, inspection, testing and survey routines", "cross_family": true } ] }, { "qid": "KOL-2026-09-4314-Q005", "text": "Where is the pressure gauge located for the operating water and sealing water on a purifier?", "family": "Purifier & Centrifuges", "subtopic": "Purifier Operation / Bowl", "tid": "KOL-2026-09-4314", "tray": "new", "candidates": [ { "answer_id": "MR-DS-PV-B-003", "score": 0.5599368214607239, "sibling_score": 0.5599368214607239, "answer_score": null, "sibling_qid": "MUM-2025-09-0457-Q003", "sibling_text": "deck seal pressure sensor location", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "3. Alarms, trips, valves, and abnormal conditions of the deck seal", "cross_family": true }, { "answer_id": "PURIF-172-003", "score": 0.5564231276512146, "sibling_score": 0.5564231276512146, "answer_score": null, "sibling_qid": "KOC-2026-05-0046-Q009", "sibling_text": "purifier water transducer location on purifier and how it works why disk stack needed in purifier purpose", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "ALCAP and the water transducer", "cross_family": false }, { "answer_id": "PUR-OPS-P01-004", "score": 0.525049090385437, "sibling_score": 0.525049090385437, "answer_score": null, "sibling_qid": "CHE-2021-07-0171-Q008", "sibling_text": "hydrostatic balance of purifier", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Hydrostatic balancing in the bowl — what it means and what controls it", "cross_family": false } ] }, { "qid": "KOL-2026-09-4314-Q006", "text": "On a Mitsubishi SelfJector purifier, where does the operating water come from?", "family": "Purifier & Centrifuges", "subtopic": "Purifier Operation / Bowl", "tid": "KOL-2026-09-4314", "tray": "new", "candidates": [ { "answer_id": "PUR-BOWL-P03-FINAL-1-003", "score": 0.5575795769691467, "sibling_score": 0.5575795769691467, "answer_score": null, "sibling_qid": "KOL-2017-02-1843-Q002", "sibling_text": "purifier overflowing waterline oil is coming", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "3. Overflow, Oil-Over-Water and Sludge Carry-Over — Causes, Checks and After-Overhaul Action", "cross_family": false }, { "answer_id": "FIRE-P02-03", "score": 0.5533002614974976, "sibling_score": 0.5533002614974976, "answer_score": 0.3783071175217628, "sibling_qid": "MUM-2026-09-3881-Q005", "sibling_text": "from which tank the water is supplied for hyper mist", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist — low water level or empty FW tank contingency", "cross_family": true }, { "answer_id": "PURIF-172-004", "score": 0.5410675406455994, "sibling_score": 0.5410675406455994, "answer_score": null, "sibling_qid": "KOC-2024-12-1887-Q002", "sibling_text": "purifier water leaking in oil", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Overflow, leakage & water-in-oil troubleshooting", "cross_family": false } ] }, { "qid": "KOL-2026-09-4314-Q007", "text": "What will you do for the time being regarding the operating water pressure?", "family": "Purifier & Centrifuges", "subtopic": "Purifier Operation / Bowl", "tid": "KOL-2026-09-4314", "tray": "new", "candidates": [ { "answer_id": "HYD-JACK-002", "score": 0.5578100681304932, "sibling_score": 0.5578100681304932, "answer_score": null, "sibling_qid": "KOL-2025-06-3791-Q009", "sibling_text": "operating this if desired pressure is not coming what to do how will you repair it and make it for use", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Hydraulic jack leaks, seizes, will not reach pressure, or nut will not loosen", "cross_family": true }, { "answer_id": "TPL-SENS-A-002", "score": 0.5051480531692505, "sibling_score": 0.5051480531692505, "answer_score": null, "sibling_qid": "MUM-2023-05-1385-Q005", "sibling_text": "how to set pressure switch", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Pressure transmitter / transducer / switch working and calibration", "cross_family": true }, { "answer_id": "HYD-602-002", "score": 0.49634867906570435, "sibling_score": 0.49634867906570435, "answer_score": null, "sibling_qid": "KOL-2021-12-3503-Q002", "sibling_text": "boiler hydrostatic pressure when done how done precautions", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Why is the hydrostatic test carried out, when is it done, and what does it prove?", "cross_family": true } ] }, { "qid": "KOL-2026-09-4314-Q008", "text": "After stopping the feed to the purifier, what do you do next?", "family": "Purifier & Centrifuges", "subtopic": "Purifier Operation / Bowl", "tid": "KOL-2026-09-4314", "tray": "review", "candidates": [ { "answer_id": "PUR-BOWL-P03-FINAL-1-003", "score": 0.6621094346046448, "sibling_score": 0.6621094346046448, "answer_score": null, "sibling_qid": "KOL-2026-09-4314-Q003", "sibling_text": "what do you do next after stopping the feed when a purifier overflows", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "3. Overflow, Oil-Over-Water and Sludge Carry-Over — Causes, Checks and After-Overhaul Action", "cross_family": false }, { "answer_id": "PUR-DSL-001", "score": 0.6084625124931335, "sibling_score": 0.6084625124931335, "answer_score": 0.38620950281620026, "sibling_qid": "KOL-2026-09-4314-Q009", "sibling_text": "after doing the sludge discharge on the purifier what is the next step", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Manual desludging of a purifier — the step-by-step procedure", "cross_family": false }, { "answer_id": "PUR-BOWL-P03-FINAL-1-002", "score": 0.5405297875404358, "sibling_score": 0.5405297875404358, "answer_score": null, "sibling_qid": "KOL-2019-09-3273-Q002", "sibling_text": "purifier starting procedure", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "2. Operation, Starting, and Running on Manual After a Supply or Automation Failure", "cross_family": false } ] }, { "qid": "KOL-2026-09-4314-Q010", "text": "What do you mean by non-periodical survey?", "family": "Surveys - Statutory", "subtopic": "Scope of Survey", "tid": "KOL-2026-09-4314", "tray": "new", "candidates": [ { "answer_id": "SVY-SCOPE-003", "score": 0.6283121705055237, "sibling_score": 0.6283121705055237, "answer_score": null, "sibling_qid": "MUM-2023-01-2161-Q007", "sibling_text": "periodical survey and annual survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the difference between a periodical survey and an annual survey?", "cross_family": false }, { "answer_id": "HSSC-002", "score": 0.5852466225624084, "sibling_score": 0.5852466225624084, "answer_score": null, "sibling_qid": "CHE-2026-05-0623-Q011", "sibling_text": "what is initial annual periodical and intermediate survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What are the initial, annual, periodical and intermediate surveys under HSSC, which surveys are NOT included, and which conventions does the harmonised system cover?", "cross_family": false }, { "answer_id": "SURV-GEN-004", "score": 0.5842617154121399, "sibling_score": 0.5064695477485657, "answer_score": 0.5842617154121399, "sibling_qid": "KOL-2023-11-4029-Q006", "sibling_text": "what is non periodical survey couldn t answer this one correctly ext how would you carry out chain case inspection", "sibling_family": "Surveys - Statutory", "via": "answer_title", "answer_title": "Additional / non-periodical survey", "cross_family": false } ] }, { "qid": "KOL-2026-09-4314-Q012", "text": "What type of hydraulic nut was used on your ship for the propeller?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2026-09-4314", "tray": "new", "candidates": [ { "answer_id": "PROP-PIL-A-001", "score": 0.5928791761398315, "sibling_score": 0.5928791761398315, "answer_score": 0.5143992722034454, "sibling_qid": "KOL-2026-09-4305-Q007", "sibling_text": "pilgrim nut method of propeller fittings", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Pilgrim / SKF hydraulic nut — fitting, push-up, extraction and removal", "cross_family": true }, { "answer_id": "PROP-PN-B-002", "score": 0.5281506776809692, "sibling_score": 0.5281506776809692, "answer_score": null, "sibling_qid": "NOI-2026-09-0023-Q003", "sibling_text": "wet fit propeller", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Fitting a keyless propeller (oil-injection push-up method)", "cross_family": true }, { "answer_id": "SHAFT-CPP-004", "score": 0.5211146473884583, "sibling_score": 0.5211146473884583, "answer_score": 0.4860928177833557, "sibling_qid": "MUM-2022-12-1037-Q013", "sibling_text": "explain hydraulic method of fitting propeller where u get push up distance after fitting which valve you close first", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "4. Keyless propeller — hydraulic fitting, push-up, dry/wet fit", "cross_family": true } ] }, { "qid": "KOL-2026-09-4314-Q013", "text": "Is a Pilgrim nut a normal nut or hydraulically tightened?", "family": "Drydock & Underwater Surveys", "subtopic": "Propeller / Pilgrim Nut", "tid": "KOL-2026-09-4314", "tray": "new", "candidates": [ { "answer_id": "PROP-PIL-A-001", "score": 0.5678268671035767, "sibling_score": 0.5678268671035767, "answer_score": 0.48360177278518673, "sibling_qid": "KOL-2024-06-3694-Q004", "sibling_text": "pilgrim nut dry fit method", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Pilgrim / SKF hydraulic nut — fitting, push-up, extraction and removal", "cross_family": false }, { "answer_id": "HYD-JACK-003", "score": 0.483928918838501, "sibling_score": 0.483928918838501, "answer_score": 0.4581504851579666, "sibling_qid": "KOL-2025-06-3791-Q008", "sibling_text": "what advancement is there now a days for cylinder head mounting hydraulic nuts how to tighten or loosen it what are the difficulties faced while", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Hydraulic tightening and loosening of main-engine nuts — elongation principle", "cross_family": true }, { "answer_id": "PRE-TEN-004", "score": 0.4549270421266556, "sibling_score": null, "answer_score": 0.4549270421266556, "sibling_qid": "", "sibling_text": "tightening cylinder head hydraulic bolts or nuts without a torque wrench hydraulic head bolts are tensioned not torqued a torque wrench is not the tool jacks to the maker s pressure giving a known stud load seat nuts release", "sibling_family": "", "via": "answer_title", "answer_title": "Tightening cylinder-head hydraulic bolts or nuts without a torque wrench", "cross_family": false } ] }, { "qid": "KOL-2026-09-4314-Q015", "text": "How do you take the rudder drop?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Drop", "tid": "KOL-2026-09-4314", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.6599655747413635, "sibling_score": 0.6599655747413635, "answer_score": 0.43561272919178007, "sibling_qid": "KOL-2026-09-4314-Q016", "sibling_text": "where do you take the rudder drop", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "RUD-DROP-003", "score": 0.6162092089653015, "sibling_score": 0.6162092089653015, "answer_score": 0.40038079172372815, "sibling_qid": "CHE-2021-07-0171-Q007", "sibling_text": "rudder drop is more wat actions you take during sailing", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Rudder drop at the limit: the decision", "cross_family": false }, { "answer_id": "RUD-DROP-002", "score": 0.3813814058899879, "sibling_score": null, "answer_score": 0.3813814058899879, "sibling_qid": "", "sibling_text": "rudder clearances which where and how taken pintle bush clearance at each pintle top bottom f a and p s on long feeler gauges or pintle od vs bush id by caliper top mid bottom the maximum is the clearance renew the bush at the maker class limit carrier bearing wear down the rudder drop poker trammel gauge hull datum to stock mark against the recorded newbuilding reading", "sibling_family": "", "via": "answer_title", "answer_title": "Rudder clearances: which, where and how taken", "cross_family": false } ] }, { "qid": "KOL-2026-09-4314-Q017", "text": "Where is the upper pintle located on the rudder?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2026-09-4314", "tray": "new", "candidates": [ { "answer_id": "TRS-002", "score": 0.6164267063140869, "sibling_score": 0.6164267063140869, "answer_score": 0.39217090159654616, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.5348706841468811, "sibling_score": 0.5348706841468811, "answer_score": null, "sibling_qid": "MUM-2026-05-3150-Q003", "sibling_text": "rudder internal painting", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "HULL-PAINT-002", "score": 0.5348706841468811, "sibling_score": 0.5348706841468811, "answer_score": null, "sibling_qid": "CHE-2026-02-0110-Q012", "sibling_text": "rudder internal painting", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Types of hull coating, the paint scheme by section, and why each is used", "cross_family": false } ] }, { "qid": "KOL-2026-09-4314-Q018", "text": "Where is the lower pintle located and why is it there?", "family": "SOLAS - Fire Safety", "subtopic": "CO2 System", "tid": "KOL-2026-09-4314", "tray": "new", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.40102195739746094, "sibling_score": 0.40102195739746094, "answer_score": null, "sibling_qid": "NOI-2026-09-0024-Q001", "sibling_text": "pintle clearance", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": true }, { "answer_id": "TR-TB-PA-005", "score": 0.38645315170288086, "sibling_score": 0.38645315170288086, "answer_score": 0.3146294504404068, "sibling_qid": "MUM-2025-12-2889-Q003", "sibling_text": "tie bolt pinch screw location", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Pinching screws: purpose, location and clearance", "cross_family": true }, { "answer_id": "BOT-PLUG-001", "score": 0.3798203468322754, "sibling_score": 0.3798203468322754, "answer_score": null, "sibling_qid": "MUM-2026-02-0732-Q003", "sibling_text": "bottom plug", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "How do you check the watertight integrity of a DB tank bottom plug in dry dock?", "cross_family": true } ] }, { "qid": "KOL-2026-09-4314-Q019", "text": "Can you take the rudder drop measurement in the afloat condition, and how do you take it?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Drop", "tid": "KOL-2026-09-4314", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.7071473598480225, "sibling_score": 0.7071473598480225, "answer_score": 0.5114090353250503, "sibling_qid": "KOC-2021-05-1760-Q003", "sibling_text": "rudder drop measurement using poker gauge ans by first unit on tdc the remove rope guard drain oil by removing both top and bottom plugs remove copper gasket and put poker gauge till the matching mark on poker gauge then press the measuring pin and lock it and take readings take on both top and bottom", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "RUD-DROP-002", "score": 0.4522597372531891, "sibling_score": null, "answer_score": 0.4522597372531891, "sibling_qid": "", "sibling_text": "rudder clearances which where and how taken pintle bush clearance at each pintle top bottom f a and p s on long feeler gauges or pintle od vs bush id by caliper top mid bottom the maximum is the clearance renew the bush at the maker class limit carrier bearing wear down the rudder drop poker trammel gauge hull datum to stock mark against the recorded newbuilding reading", "sibling_family": "", "via": "answer_title", "answer_title": "Rudder clearances: which, where and how taken", "cross_family": false }, { "answer_id": "RUD-DROP-003", "score": 0.4457265704870224, "sibling_score": null, "answer_score": 0.4457265704870224, "sibling_qid": "", "sibling_text": "rudder drop at the limit the decision verify before acting re measure drop jumping crosshead confirm the datum marks and the newbuilding reference and exclude a set up skeg or keel blocks in way of the skeg reaching the limit is a renewal trigger not a monitor at the maker class maximum the worn component is renewed not run on", "sibling_family": "", "via": "answer_title", "answer_title": "Rudder drop at the limit: the decision", "cross_family": false } ] }, { "qid": "KOL-2026-09-4314-Q021", "text": "Is the trammel gauge measurement taken inside or outside the ship?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft Deflection", "tid": "KOL-2026-09-4314", "tray": "new", "candidates": [ { "answer_id": "CSD-BF036-002", "score": 0.588722288608551, "sibling_score": 0.588722288608551, "answer_score": null, "sibling_qid": "KOL-2026-02-3920-Q004", "sibling_text": "trammel gauge how to take measurements 5", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "How do you take a crankshaft deflection — pre-checks, and instructing the 3/E?", "cross_family": false }, { "answer_id": "DDHSC-009", "score": 0.5664496421813965, "sibling_score": 0.5664496421813965, "answer_score": null, "sibling_qid": "CHE-2026-04-0523-Q012", "sibling_text": "measuring hull thickness in dry dock", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "How do you measure hull thickness in drydock?", "cross_family": true }, { "answer_id": "SHELL-PLT-A-004", "score": 0.562577486038208, "sibling_score": 0.562577486038208, "answer_score": null, "sibling_qid": "MUM-2025-08-2361-Q008", "sibling_text": "measuring hull thickness in drydock", "sibling_family": "", "via": "sibling", "answer_title": "Measuring hull / shell-plate thickness in drydock", "cross_family": false } ] }, { "qid": "KOL-2026-09-4314-Q024", "text": "Which portion of the rudder wears off?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2026-09-4314", "tray": "new", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.6149163246154785, "sibling_score": 0.6149163246154785, "answer_score": 0.4477340281009674, "sibling_qid": "MUM-2026-06-3610-Q003", "sibling_text": "removal of rudder bearing", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "STEER-055-A-004", "score": 0.593174159526825, "sibling_score": 0.593174159526825, "answer_score": null, "sibling_qid": "KOL-2019-02-3212-Q005", "sibling_text": "rudder is taking more to come from one side to the other reasons and maintenance", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Hydraulic faults — air, sluggish response, locking, leakage", "cross_family": false }, { "answer_id": "TRS-002", "score": 0.581542432308197, "sibling_score": 0.581542432308197, "answer_score": null, "sibling_qid": "KOC-2026-02-1103-Q008", "sibling_text": "how rudder stock and carrier bearing is attached told 2 half fitted bolts x does bearing turn with rudder i told yes then he told that there are 2 types one turn with rudder other dont turn with rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false } ] }, { "qid": "KOL-2026-09-4314-Q025", "text": "Where does the rudder wear down happen?", "family": "Steering Gear & Hydraulics", "subtopic": "Tiller / Rudder Stock", "tid": "KOL-2026-09-4314", "tray": "new", "candidates": [ { "answer_id": "STEER-055-A-004", "score": 0.5969260334968567, "sibling_score": 0.5969260334968567, "answer_score": null, "sibling_qid": "KOL-2019-02-3212-Q005", "sibling_text": "rudder is taking more to come from one side to the other reasons and maintenance", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Hydraulic faults — air, sluggish response, locking, leakage", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.58608478307724, "sibling_score": 0.58608478307724, "answer_score": 0.4539964973926544, "sibling_qid": "CHE-2026-04-0159-Q007", "sibling_text": "how rudder weight is carried how to take wear down clearances how to measure rudder drop", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "PRE-TEN-001", "score": 0.5689921975135803, "sibling_score": 0.5689921975135803, "answer_score": null, "sibling_qid": "MUM-2026-09-3907-Q001", "sibling_text": "rudder carrier bearing replacement in port", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Pre-stressing and pre-tensioning in main-engine bolting", "cross_family": false } ] }, { "qid": "KOL-2026-10-4315-Q001", "text": "Upper hopper tank and why?", "family": "Cargo Ops - Bulk Carriers", "subtopic": "Heavy Weather Ballast", "tid": "KOL-2026-10-4315", "tray": "new", "candidates": [ { "answer_id": "BC-HOPPER-G-001", "score": 0.6475071907043457, "sibling_score": 0.6475071907043457, "answer_score": 0.47295874655246734, "sibling_qid": "KOL-2017-05-0090-Q002", "sibling_text": "why upper and lower hopper tanks provided", "sibling_family": "", "via": "sibling", "answer_title": "Hopper and topside tanks — what they are and their purpose", "cross_family": false }, { "answer_id": "BC-HOPPER-G-002", "score": 0.6453414559364319, "sibling_score": 0.6453414559364319, "answer_score": 0.4295367538928985, "sibling_qid": "KOL-2022-10-0689-Q043", "sibling_text": "hopper tanks upper hopper tk when it is filled", "sibling_family": "", "via": "sibling", "answer_title": "Ballasting the upper hopper / topside tank — when and why", "cross_family": false }, { "answer_id": "BC-IMSBC-003", "score": 0.6263832449913025, "sibling_score": 0.6263832449913025, "answer_score": 0.46561804711818694, "sibling_qid": "KOL-2025-08-1021-Q001", "sibling_text": "upper hooper tank purpose", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "3. Topside, upper hopper and lower hopper tanks", "cross_family": false } ] }, { "qid": "KOL-2026-10-4315-Q003", "text": "Sox emission at funnel? KEY ANS : Value is 6g/Kwhr", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "SOx Limit", "tid": "KOL-2026-10-4315", "tray": "new", "candidates": [ { "answer_id": "AVI-SCOPE-005", "score": 0.5299447178840637, "sibling_score": 0.5299447178840637, "answer_score": null, "sibling_qid": "CHE-2026-03-0122-Q009", "sibling_text": "annex 6 emissions", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What pollutants, gases, emissions and substances are controlled under MARPOL Annex VI?", "cross_family": false }, { "answer_id": "AV6-P04-01", "score": 0.48714274168014526, "sibling_score": 0.48714274168014526, "answer_score": null, "sibling_qid": "MUM-2025-09-0446-Q007", "sibling_text": "6 global warming potential", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Define Global Warming Potential and Ozone Depletion Potential; give the reference bases, meaning of a stated value, and the time-horizon and equal-mass points examiners drill.", "cross_family": false }, { "answer_id": "A6-NSEC-002", "score": 0.4858853816986084, "sibling_score": 0.4858853816986084, "answer_score": null, "sibling_qid": "KOL-2017-04-0086-Q007", "sibling_text": "6 nox emissions n technical file", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "NOx Technical Code vs NOx Technical File", "cross_family": false } ] }, { "qid": "KOL-2026-10-4315-Q004", "text": "Construction under Main engine?\nkey ans: consists of centre girder, intercostal girder, solid floor ,flat bar stiffeners and continuous horizontal plates", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Bedplate / A-Frame", "tid": "KOL-2026-10-4315", "tray": "review", "candidates": [ { "answer_id": "PPS-230-006", "score": 0.6785022020339966, "sibling_score": 0.6785022020339966, "answer_score": null, "sibling_qid": "KOL-2021-01-0461-Q001", "sibling_text": "intercostal girder solid floor panting stringers", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Fore-end / fore-peak structure: draw and describe", "cross_family": true }, { "answer_id": "FLR-WFB-P01-002", "score": 0.6358526945114136, "sibling_score": 0.6358526945114136, "answer_score": 0.5727413415908813, "sibling_qid": "CHE-2026-04-0139-Q004", "sibling_text": "solid floor girders", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "The solid floor — what it is, where it is fitted, its components", "cross_family": true }, { "answer_id": "FWFB-P02-004", "score": 0.6337986588478088, "sibling_score": 0.6337986588478088, "answer_score": null, "sibling_qid": "KOL-2023-02-0718-Q002", "sibling_text": "solid plate stringer breast hook intercostal girder and it s function", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Centre, side, intercostal and longitudinal girders", "cross_family": true } ] }, { "qid": "KOL-2026-10-4315-Q007", "text": " CII AND RATING, EEDI FORMULA AND UNITS ? Decider Ques Srinivasan", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "EEDI", "tid": "KOL-2026-10-4315", "tray": "new", "candidates": [ { "answer_id": "CII-CALC-P03-001", "score": 0.6201995015144348, "sibling_score": 0.6201995015144348, "answer_score": null, "sibling_qid": "KOL-2025-09-1082-Q005", "sibling_text": "cii rating and unit", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Calculating attained & required CII — formula, unit, reduction factor, measurements", "cross_family": false }, { "answer_id": "CII-RATE-P02-002", "score": 0.5762671828269958, "sibling_score": 0.5762671828269958, "answer_score": null, "sibling_qid": "KOL-2024-10-0876-Q005", "sibling_text": "cii rating cross rating d and e", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "2. Corrective action when the ship is rated D or E", "cross_family": false }, { "answer_id": "EEDI-B-001", "score": 0.5762476325035095, "sibling_score": 0.5762476325035095, "answer_score": 0.3773608416318893, "sibling_qid": "KOL-2025-07-0982-Q011", "sibling_text": "eedi formula units", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "EEDI — formula, unit and the calculation terms", "cross_family": false } ] }, { "qid": "KOL-2026-10-4316-Q002", "text": "Loss in induction motor ?", "family": "Electrical - Motors & Starters", "subtopic": "Induction Motor (General / Working)", "tid": "KOL-2026-10-4316", "tray": "review", "candidates": [ { "answer_id": "ROTSTAT-C-005", "score": 0.8161077499389648, "sibling_score": 0.8161077499389648, "answer_score": 0.59617620408535, "sibling_qid": "KOL-2021-04-2445-Q003", "sibling_text": "induction motor losses all from stator to output", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Rotor/stator heating, losses & magnetic saturation", "cross_family": false }, { "answer_id": "IND-MOT-A-001", "score": 0.7695215344429016, "sibling_score": 0.7695215344429016, "answer_score": null, "sibling_qid": "KOL-2018-06-2206-Q001", "sibling_text": "losses in an induction motor how to minimize them", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "1. Working principle of a three-phase induction motor", "cross_family": false }, { "answer_id": "IM-GEN-B-002", "score": 0.7550694346427917, "sibling_score": 0.7550694346427917, "answer_score": null, "sibling_qid": "KOL-2024-11-0886-Q015", "sibling_text": "what are the losses in an induction motor and is there any way to check the amount of losses", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motors onboard and types of induction motors", "cross_family": false } ] }, { "qid": "KOL-2026-10-4316-Q003", "text": "How to reduce core loss ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Transformer Theory", "tid": "KOL-2026-10-4316", "tray": "new", "candidates": [ { "answer_id": "XFMR-THY-E-001", "score": 0.6395487785339355, "sibling_score": 0.6395487785339355, "answer_score": 0.3106885552406311, "sibling_qid": "KOL-2021-07-2463-Q007", "sibling_text": "losses in core", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Core / iron loss and eddy-current loss", "cross_family": false }, { "answer_id": "XFMR-THY-C-001", "score": 0.5572506785392761, "sibling_score": 0.5572506785392761, "answer_score": 0.32653725147247314, "sibling_qid": "KOL-2021-12-2520-Q003", "sibling_text": "how to reduce core loss iron loss how to reduce hysteresis loss", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Hysteresis loss in a transformer — cause, the factors it depends on, and how to cut it", "cross_family": false }, { "answer_id": "XFMR-A-004", "score": 0.5151417851448059, "sibling_score": 0.5151417851448059, "answer_score": 0.331635108590126, "sibling_qid": "KOL-2017-08-0106-Q005", "sibling_text": "transformee lossess how to eliminate", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Transformer losses and loss reduction", "cross_family": false } ] }, { "qid": "KOL-2026-10-4317-Q005", "text": "Thyristor ? cross ques", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Thyristor / SCR", "tid": "KOL-2026-10-4317", "tray": "review", "candidates": [ { "answer_id": "SCR-306-A-001", "score": 0.6890383958816528, "sibling_score": 0.6890383958816528, "answer_score": 0.4734391927719116, "sibling_qid": "KOL-2025-08-2823-Q005", "sibling_text": "use of thyristor on ship cross ques", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What an SCR is and how it works", "cross_family": false }, { "answer_id": "SCR-306-B-003", "score": 0.6751226782798767, "sibling_score": 0.6751226782798767, "answer_score": null, "sibling_qid": "CHE-2025-08-0283-Q003", "sibling_text": "cross triac", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "TRIAC and DIAC — construction, triggering and use", "cross_family": false }, { "answer_id": "CYC-599-001", "score": 0.666670560836792, "sibling_score": 0.666670560836792, "answer_score": null, "sibling_qid": "KOL-2025-09-2866-Q009", "sibling_text": "what is triac full details why using igbt some cross from diode n all cycloconverter", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a cycloconverter and how does it work?", "cross_family": false } ] }, { "qid": "KOL-2026-10-4318-Q004", "text": "ISM code preparation as 2eng ?", "family": "ISM Code", "subtopic": "2E Responsibility", "tid": "KOL-2026-10-4318", "tray": "new", "candidates": [ { "answer_id": "ISM-2E-A-002", "score": 0.5944193005561829, "sibling_score": 0.5944193005561829, "answer_score": null, "sibling_qid": "KOC-2024-03-0319-Q007", "sibling_text": "ism preparation 2e", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "How a Second Engineer prepares for an ISM audit or survey", "cross_family": false }, { "answer_id": "ISM-2E-C-001", "score": 0.5943556427955627, "sibling_score": 0.5943556427955627, "answer_score": 0.3369518846273422, "sibling_qid": "KOC-2024-08-0379-Q002", "sibling_text": "ism preparation as 2 e only documents", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM audit / survey preparation as Second Engineer — beyond the paperwork", "cross_family": false }, { "answer_id": "ISM-ELEM-002", "score": 0.5942692756652832, "sibling_score": 0.5942692756652832, "answer_score": 0.32943685054779054, "sibling_qid": "MUM-2026-06-3653-Q001", "sibling_text": "ism code", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the ISM Code?", "cross_family": false } ] }, { "qid": "KOL-2026-10-4318-Q005", "text": "NLS and types ?", "family": "Turbocharger", "subtopic": "TC Construction", "tid": "KOL-2026-10-4318", "tray": "new", "candidates": [ { "answer_id": "CHEM-PA-002", "score": 0.5895391702651978, "sibling_score": 0.5895391702651978, "answer_score": null, "sibling_qid": "KOL-2025-08-1008-Q002", "sibling_text": "nls and category", "sibling_family": "MARPOL - Annex II (NLS)", "via": "sibling", "answer_title": "Noxious liquid substances and their categories", "cross_family": true }, { "answer_id": "SCR-306-A-006", "score": 0.4305340051651001, "sibling_score": 0.4305340051651001, "answer_score": null, "sibling_qid": "MUM-2024-06-2230-Q005", "sibling_text": "scr and types", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Types of thyristor / SCR", "cross_family": true }, { "answer_id": "TC-CONST-001", "score": 0.429107666015625, "sibling_score": 0.429107666015625, "answer_score": null, "sibling_qid": "MUM-2025-12-1227-Q006", "sibling_text": "types of t c", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharger types, series names, and ME/AE arrangements", "cross_family": false } ] }, { "qid": "KOL-2026-10-4319-Q001", "text": "How Fire Gas extractor-detectors within cargo hold works ?", "family": "SOLAS - Fire Safety", "subtopic": "Cargo Hold Fire", "tid": "KOL-2026-10-4319", "tray": "review", "candidates": [ { "answer_id": "CH-FIRE-001", "score": 0.7123048901557922, "sibling_score": 0.7123048901557922, "answer_score": 0.5586221605539322, "sibling_qid": "KOL-2024-10-0877-Q001", "sibling_text": "working of cargo hold gas detector cross too many all details", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Cargo hold fire detection / smoke detection system", "cross_family": false }, { "answer_id": "WIDAS-SMK-006", "score": 0.6706976294517517, "sibling_score": 0.6706976294517517, "answer_score": null, "sibling_qid": "MUM-2023-01-0079-Q008", "sibling_text": "how does cargo hold fire detection works", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Cargo-hold smoke / fire detection system and how it works", "cross_family": false }, { "answer_id": "CONT-FIRE-FINAL-1-002", "score": 0.5834958285093307, "sibling_score": null, "answer_score": 0.5834958285093307, "sibling_qid": "", "sibling_text": "cargo hold fire detection ventilation shut off and the sample extraction system detection sample extraction smoke detection system per hold sampling pipes to a bridge cabinet approved under the fss code locates the fire to a specific hold first actions as 2 e alarm muster confirm the hold", "sibling_family": "", "via": "answer_title", "answer_title": "Cargo-hold fire — detection, ventilation shut-off and the sample-extraction system", "cross_family": false } ] }, { "qid": "KOL-2026-10-4319-Q006", "text": "Classification and Explain EUMRV and IIMO DCS ? Decider ques Srinivasan", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "MRV / DCS", "tid": "KOL-2026-10-4319", "tray": "new", "candidates": [ { "answer_id": "MRV-DCS-001", "score": 0.6068972945213318, "sibling_score": 0.6068972945213318, "answer_score": 0.3043163478374481, "sibling_qid": "KOL-2026-07-4267-Q005", "sibling_text": "imo dcs vs eu mrv decider question", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is the difference between EU MRV and IMO DCS?", "cross_family": false }, { "answer_id": "IMO-CODES-P03-002", "score": 0.2783164709806442, "sibling_score": null, "answer_score": 0.2783164709806442, "sibling_qid": "", "sibling_text": "imo overview structure committees certificates imsas ui and carbon strategy", "sibling_family": "", "via": "answer_title", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": false }, { "answer_id": "EEDI-C-002", "score": 0.260892379283905, "sibling_score": null, "answer_score": 0.260892379283905, "sibling_qid": "", "sibling_text": "eedi versus eeoi what is the difference", "sibling_family": "", "via": "answer_title", "answer_title": "EEDI versus EEOI — what is the difference?", "cross_family": false } ] }, { "qid": "KOL-2026-10-4320-Q001", "text": "Crosshead lubrication in ME engine, why telescopic pipe design advantages?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Crosshead Bearing", "tid": "KOL-2026-10-4320", "tray": "review", "candidates": [ { "answer_id": "XHEAD-303-006", "score": 0.6859578490257263, "sibling_score": 0.6859578490257263, "answer_score": 0.5656073004007339, "sibling_qid": "CHE-2026-04-0139-Q007", "sibling_text": "crosshead lubrication piston cooling flow telescopic pipe function", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead and guide-shoe lubrication, difficulties, telescopic pipe", "cross_family": false }, { "answer_id": "XHD-BRG-B-007", "score": 0.6765201091766357, "sibling_score": 0.6765201091766357, "answer_score": 0.502290689945221, "sibling_qid": "KOL-2021-10-1628-Q003", "sibling_text": "crosshead lubrication how pipelines arranged fr lubrication in main engine", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Guide and guide-shoe lubrication, and the oil path from sump to crosshead", "cross_family": false }, { "answer_id": "CXH-BRG-FINAL-1-004", "score": 0.6197143197059631, "sibling_score": 0.6197143197059631, "answer_score": 0.5156018823385239, "sibling_qid": "KOL-2018-04-1370-Q004", "sibling_text": "crosshead lubrication in me engine", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead lubrication: how oil reaches the crosshead", "cross_family": false } ] }, { "qid": "KOL-2026-10-4320-Q002", "text": "VEC ? why we need this how to achieve and advantages ?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Engine Theory / Performance", "tid": "KOL-2026-10-4320", "tray": "new", "candidates": [ { "answer_id": "EXHV-080-BF37-001", "score": 0.6373177766799927, "sibling_score": 0.6373177766799927, "answer_score": 0.29711332768201826, "sibling_qid": "KOL-2023-09-1755-Q002", "sibling_text": "advantage of vec", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "What is variable exhaust valve closing (VEC)? Components and advantages.", "cross_family": true }, { "answer_id": "ETP-344-P03-011", "score": 0.5763170719146729, "sibling_score": 0.5763170719146729, "answer_score": 0.3127230420708656, "sibling_qid": "CHE-2026-03-0250-Q005", "sibling_text": "what is vec", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "VEC — Variable Exhaust valve Closing", "cross_family": false }, { "answer_id": "VOC-MGT-003", "score": 0.526547372341156, "sibling_score": 0.526547372341156, "answer_score": 0.2992008849978447, "sibling_qid": "MUM-2025-12-1236-Q004", "sibling_text": "what is vec", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Managing and controlling VOC - VECS and onboard measures", "cross_family": true } ] }, { "qid": "KOL-2026-10-4320-Q003", "text": "Gear pump principle design application and advantages ?", "family": "Pumps - Centrifugal & PD", "subtopic": "Gear / Screw / Mono Pump", "tid": "KOL-2026-10-4320", "tray": "review", "candidates": [ { "answer_id": "PCD-P05-03", "score": 0.7025226354598999, "sibling_score": 0.7025226354598999, "answer_score": 0.5515784025192261, "sibling_qid": "KOL-2020-03-3331-Q005", "sibling_text": "gear pump working", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Gear pump — construction, working, backlash, tooth profile, safety valve, why not for sea water", "cross_family": false }, { "answer_id": "PCD-P05-02", "score": 0.6675554513931274, "sibling_score": 0.6675554513931274, "answer_score": 0.5005996286869049, "sibling_qid": "KOL-2025-12-2029-Q005", "sibling_text": "screw pump principle timing gear function", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Screw pump — construction, working, types, drive arrangement, clearances, why preferred over gear", "cross_family": false }, { "answer_id": "PCP-BF01-001", "score": 0.6363292336463928, "sibling_score": 0.6363292336463928, "answer_score": null, "sibling_qid": "MUM-2026-05-3163-Q009", "sibling_text": "progressive cavity pump construction working where you will see such pumps application advantages and disadvantages of using such pumps", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "What is a progressive cavity pump — construction and working", "cross_family": false } ] }, { "qid": "KOL-2026-10-4320-Q004", "text": "Cascade control, type and advantages ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "PID Controller", "tid": "KOL-2026-10-4320", "tray": "new", "candidates": [ { "answer_id": "PID-CTRL-005", "score": 0.6437444090843201, "sibling_score": 0.6437444090843201, "answer_score": 0.40787720680236816, "sibling_qid": "CHE-2026-02-0336-Q007", "sibling_text": "cascade control", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Open-loop, closed-loop, cascade and other control types onboard", "cross_family": false }, { "answer_id": "CTRL-001", "score": 0.6287000179290771, "sibling_score": 0.6287000179290771, "answer_score": 0.4327302545309067, "sibling_qid": "KOC-2024-04-0993-Q009", "sibling_text": "cascade controller only explain", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Cascade control — how it works", "cross_family": true }, { "answer_id": "CTRL-TL-008", "score": 0.6052725911140442, "sibling_score": 0.6052725911140442, "answer_score": 0.43781696557998656, "sibling_qid": "KOL-2026-02-2040-Q004", "sibling_text": "cascade control what is function", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Cascade control, the slave controller, and split-range control", "cross_family": true } ] }, { "qid": "KOL-2026-10-4321-Q001", "text": "WHAT IS EICU ?", "family": "Automation & Controls", "subtopic": "Bridge Control of ME", "tid": "KOL-2026-10-4321", "tray": "new", "candidates": [ { "answer_id": "EICU-MAN-P01-001", "score": 0.5599854588508606, "sibling_score": 0.5599854588508606, "answer_score": 0.40394958555698396, "sibling_qid": "KOC-2026-08-2158-Q013", "sibling_text": "function of eicu and ecu", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "EICU, ECU, CCU, ACU — the ME control units and what is controlled electronically", "cross_family": false }, { "answer_id": "EICU-MAN-P01-004", "score": 0.5354006290435791, "sibling_score": 0.5354006290435791, "answer_score": 0.2993551820516586, "sibling_qid": "MUM-2025-08-1159-Q003", "sibling_text": "ecu and eicu", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Control-unit failure — CCU / ECU / EICU: can you still run the engine?", "cross_family": true }, { "answer_id": "MEB-MEC-P03-002", "score": 0.4602739214897156, "sibling_score": 0.4602739214897156, "answer_score": 0.28334507048130037, "sibling_qid": "KOL-2026-01-4081-Q002", "sibling_text": "ccu function eicu function", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "ME camless control architecture — ECS, CCU, EICU, MPC", "cross_family": true } ] }, { "qid": "KOL-2026-10-4321-Q002", "text": "Thrust pad design ahead and astern direction in FPP and reversible propeller ?", "family": "General Marine Engineering", "subtopic": "Shafting / Propeller / CPP", "tid": "KOL-2026-10-4321", "tray": "new", "candidates": [ { "answer_id": "SHAFT-CPP-005", "score": 0.5956219434738159, "sibling_score": 0.5956219434738159, "answer_score": null, "sibling_qid": "KOC-2024-12-0482-Q006", "sibling_text": "why propeller efficiency is more in ahead direction not in astern direction", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "5. Propeller types, design criteria & latest developments", "cross_family": false }, { "answer_id": "TB-BEAR-003", "score": 0.5951510667800903, "sibling_score": 0.5951510667800903, "answer_score": null, "sibling_qid": "KOC-2024-11-1015-Q009", "sibling_text": "at what angle thrust pads are fitted in aft and forward of engine", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Michell / tilting-pad thrust bearing — principle & oil-wedge lubrication", "cross_family": true }, { "answer_id": "THRUST-PC-006", "score": 0.5876906007528305, "sibling_score": 0.5867470502853394, "answer_score": 0.5876906007528305, "sibling_qid": "KOL-2020-01-3307-Q003", "sibling_text": "types of thrust pad in fixed pitch propeller and cpp in which they are interchange how many one pad abnormal what to do", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "answer_title", "answer_title": "Thrust pad types — FPP vs CPP and interchangeability", "cross_family": true } ] }, { "qid": "KOL-2026-10-4321-Q003", "text": "SFOC consumption depends ?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "SFOC", "tid": "KOL-2026-10-4321", "tray": "new", "candidates": [ { "answer_id": "SFOC-003", "score": 0.6182173490524292, "sibling_score": 0.6182173490524292, "answer_score": 0.3368311271071434, "sibling_qid": "MUM-2025-10-2862-Q004", "sibling_text": "sfoc value", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What is the SFOC of your main engine? With BHP, stroke and cylinder oil consumption", "cross_family": false }, { "answer_id": "SFOC-001", "score": 0.6122534871101379, "sibling_score": 0.6122534871101379, "answer_score": 0.3856920972466469, "sibling_qid": "MUM-2026-06-3353-Q010", "sibling_text": "sfoc calculations", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What is SFOC? Definition, formula, unit — and how you get the corrected density", "cross_family": false }, { "answer_id": "ETP-344-P01-007", "score": 0.43601150512695314, "sibling_score": null, "answer_score": 0.43601150512695314, "sibling_qid": "", "sibling_text": "sfoc specific fuel oil consumption and its significance sfoc fuel mass per kwh of brake power g kwh fuel mass flow brake power direct fuel economy measure inverse to brake thermal efficiency 3600 sfoc cv", "sibling_family": "", "via": "answer_title", "answer_title": "SFOC — specific fuel oil consumption and its significance", "cross_family": false } ] }, { "qid": "KOL-2026-10-4321-Q005", "text": "How to reduce radial thrust in MCSW p/p ?", "family": "Purifier & Centrifuges", "subtopic": "Purifier Operation / Bowl", "tid": "KOL-2026-10-4321", "tray": "new", "candidates": [ { "answer_id": "PURIF-BOWL-P02-003", "score": 0.47447794675827026, "sibling_score": 0.47447794675827026, "answer_score": null, "sibling_qid": "KOL-2023-10-1758-Q015", "sibling_text": "radial and thrust load on purifiers", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Vertical shaft, bowl height, bearings & load support — checks, adjustment, overhaul, renewal", "cross_family": false }, { "answer_id": "PUMP-CAS-002", "score": 0.47337257862091064, "sibling_score": 0.47337257862091064, "answer_score": 0.34075271934270857, "sibling_qid": "KOL-2026-02-3922-Q003", "sibling_text": "in centrifugal pump how the radila thrust is minimized", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "02. Double-volute casing — why it is used, which thrust it balances, and the clearance in question", "cross_family": true }, { "answer_id": "PCD-P02-01", "score": 0.47027504444122314, "sibling_score": 0.47027504444122314, "answer_score": null, "sibling_qid": "KOL-2022-07-3545-Q002", "sibling_text": "in multistage centrifugal pp how axial and radial thrust are taken", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Axial thrust in a centrifugal / multistage pump — how it is balanced", "cross_family": true } ] }, { "qid": "KOL-2026-10-4321-Q006", "text": "Why steering gear limited to 35 deg ?", "family": "Steering Gear & Hydraulics", "subtopic": "Steering Gear System", "tid": "KOL-2026-10-4321", "tray": "new", "candidates": [ { "answer_id": "SG-055-B-003", "score": 0.6169046759605408, "sibling_score": 0.6169046759605408, "answer_score": null, "sibling_qid": "KOL-2026-01-4081-Q008", "sibling_text": "50 capability of steering gear", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Redundancy and the single-failure requirement (50% / 100%)", "cross_family": false }, { "answer_id": "STG-055-C-002", "score": 0.5835655331611633, "sibling_score": 0.5835655331611633, "answer_score": 0.3950647503137588, "sibling_qid": "KOC-2024-09-0412-Q004", "sibling_text": "steering gear regulations", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "SOLAS steering-gear requirements, tests and drills", "cross_family": false }, { "answer_id": "STG-055-C-001", "score": 0.5826253294944763, "sibling_score": 0.5826253294944763, "answer_score": null, "sibling_qid": "KOL-2025-06-0953-Q004", "sibling_text": "steering gear safematic requirement", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Safematic steering gear, redundancy and the single-failure criterion", "cross_family": false } ] }, { "qid": "KOL-2026-10-4321-Q007", "text": "2 stage air comp 2nd stage pr value for less work done ?", "family": "Air Compressor", "subtopic": "Air Compressor Stages / Safeties", "tid": "KOL-2026-10-4321", "tray": "new", "candidates": [ { "answer_id": "AC-STAGE-002", "score": 0.6025617718696594, "sibling_score": 0.6025617718696594, "answer_score": 0.4671789020299911, "sibling_qid": "KOL-2021-06-1594-Q004", "sibling_text": "intermediate pr in compressor in 2nd n 3rd stage", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Intermediate pressure / pressure ratio for minimum work", "cross_family": false }, { "answer_id": "AC-STAGE-001", "score": 0.5642666220664978, "sibling_score": 0.5642666220664978, "answer_score": 0.3839047491550445, "sibling_qid": "KOL-2017-03-1282-Q004", "sibling_text": "why 2 stages compression fr compressor", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Why multistage compression — advantages over single-stage", "cross_family": false }, { "answer_id": "ACRV-001", "score": 0.5547654032707214, "sibling_score": 0.5547654032707214, "answer_score": null, "sibling_qid": "CHE-2026-04-0257-Q008", "sibling_text": "two stage air compressor first stage pressure relief valve lift what reason", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "First-stage relief valve lifting or leaking — reasons and checks", "cross_family": false } ] }, { "qid": "KOL-2026-10-4322-Q001", "text": "KW sharing of alternator, cross question on droop setting, which alternator shares more KW ?", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator / Generator", "tid": "KOL-2026-10-4322", "tray": "review", "candidates": [ { "answer_id": "GEN-LSI-B-001", "score": 0.7283722758293152, "sibling_score": 0.7283722758293152, "answer_score": 0.533242917060852, "sibling_qid": "KOL-2019-03-2269-Q002", "sibling_text": "two alternators running in parallel sharing equal kw load one generator excitation drop what happens cross question on pf", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01. Two alternators in parallel — same kW but different current and power factor: cause and correction", "cross_family": false }, { "answer_id": "LS-IMB-A-001", "score": 0.703853189945221, "sibling_score": 0.703853189945221, "answer_score": null, "sibling_qid": "MUM-2026-03-1994-Q003", "sibling_text": "two alternators sharing unequal load", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Two paralleled generators sharing unequal load — cause and correction", "cross_family": false }, { "answer_id": "LS-IMB-A-002", "score": 0.663932740688324, "sibling_score": 0.663932740688324, "answer_score": null, "sibling_qid": "KOL-2026-05-4185-Q009", "sibling_text": "load sharing not happening explain droop characteristics", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "2. Governor speed droop, isochronous control and the load-control switch", "cross_family": false } ] }, { "qid": "KOL-2026-10-4322-Q004", "text": "Offset ? How to control offset. PID ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "PID Controller", "tid": "KOL-2026-10-4322", "tray": "new", "candidates": [ { "answer_id": "CTRL-TL-003", "score": 0.5917733907699585, "sibling_score": 0.5917733907699585, "answer_score": null, "sibling_qid": "KOL-2020-06-2384-Q002", "sibling_text": "2 offset control", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Feedback, open/closed loop, offset, hysteresis, P-I-D action", "cross_family": true }, { "answer_id": "PID-CTRL-002", "score": 0.575086772441864, "sibling_score": 0.575086772441864, "answer_score": 0.3883297637104988, "sibling_qid": "KOL-2021-01-3986-Q003", "sibling_text": "pid controller how differential has advantage over p i offset and deviation difference", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Proportional, integral and derivative actions", "cross_family": false }, { "answer_id": "PID-CTRL-001", "score": 0.5666815638542175, "sibling_score": 0.5666815638542175, "answer_score": 0.36862794756889344, "sibling_qid": "KOL-2021-12-1650-Q004", "sibling_text": "what is pid controller why i d are reqd what is offset why offset is reqd", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "What a PID controller is and how it works", "cross_family": true } ] }, { "qid": "KOL-2026-10-4322-Q007", "text": "AVR working ? Decider ques", "family": "Electrical - Generator & Alternator", "subtopic": "AVR / Excitation", "tid": "KOL-2026-10-4322", "tray": "new", "candidates": [ { "answer_id": "AVR-EXC-B-001", "score": 0.6357083320617676, "sibling_score": 0.6357083320617676, "answer_score": 0.3225898206233978, "sibling_qid": "KOC-2024-07-1368-Q010", "sibling_text": "avr working", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Explain the AVR working principle and control-loop operation.", "cross_family": false }, { "answer_id": "AVR-EXC-H-001", "score": 0.5874477028846741, "sibling_score": 0.5874477028846741, "answer_score": 0.2993071526288986, "sibling_qid": "CHE-2026-02-0479-Q011", "sibling_text": "avr components working", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "AVR — location, components and fault checks", "cross_family": false }, { "answer_id": "AVR-EXC-A-001", "score": 0.32408053129911424, "sibling_score": null, "answer_score": 0.32408053129911424, "sibling_qid": "", "sibling_text": "what is the purpose and function of the avr purpose hold terminal voltage within close limits despite changes in load current and power factor method a closed loop sense terminal voltage compare with a stable reference amplify the error adjust the exciter field current", "sibling_family": "", "via": "answer_title", "answer_title": "What is the purpose and function of the AVR?", "cross_family": false } ] }, { "qid": "KOL-2026-10-4323-Q001", "text": "Crosshead lubrication and cross questions ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Crosshead Bearing", "tid": "KOL-2026-10-4323", "tray": "review", "candidates": [ { "answer_id": "XHD-BRG-B-005", "score": 0.7510846257209778, "sibling_score": 0.7510846257209778, "answer_score": 0.5427174806594849, "sibling_qid": "KOL-2024-04-3682-Q003", "sibling_text": "how lub oil is going to crosshead type of lubrication in crosshead what modification done in crosshead", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How crosshead lubrication is achieved — and why it is the hard one", "cross_family": false }, { "answer_id": "CXH-BRG-FINAL-1-004", "score": 0.7466413378715515, "sibling_score": 0.7466413378715515, "answer_score": 0.5706201940774918, "sibling_qid": "MUM-2026-05-3139-Q003", "sibling_text": "how lube oil supply to crosshead", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead lubrication: how oil reaches the crosshead", "cross_family": false }, { "answer_id": "XHD-BRG-B-007", "score": 0.7346711754798889, "sibling_score": 0.7346711754798889, "answer_score": 0.5278539955615997, "sibling_qid": "KOL-2023-09-1755-Q001", "sibling_text": "man bnw crosshead lubrication explain where lube oil should be delivered guide or shoe why lo not delivered in guide", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Guide and guide-shoe lubrication, and the oil path from sump to crosshead", "cross_family": false } ] }, { "qid": "KOL-2026-10-4323-Q004", "text": "Ogee ring and construction ?", "family": "Boilers - Construction & Components", "subtopic": "Ogee Ring", "tid": "KOL-2026-10-4323", "tray": "new", "candidates": [ { "answer_id": "OGEE-RING-001", "score": 0.6276884078979492, "sibling_score": 0.6276884078979492, "answer_score": 0.4282644808292389, "sibling_qid": "KOL-2025-12-2029-Q004", "sibling_text": "ogee ring purpose shape how fitted bolted riveted welded", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "The ogee ring: what it is, where it sits, its purpose, and how it's formed and connected", "cross_family": false }, { "answer_id": "PRING-B-006", "score": 0.30837432742118837, "sibling_score": null, "answer_score": 0.30837432742118837, "sibling_qid": "", "sibling_text": "general oral questions oblique angular or stepped ring gap joint seals across the gap as it wears avoiding the straight blow by path of a plain butt cut the man b w cpr ring uses a gas tight double s lock finger lock joint engine top ring taller thicker than a compressor ring it takes far higher combustion pressure and temperature so it needs strength bearing area and heat transfer capacity the co", "sibling_family": "", "via": "answer_title", "answer_title": "General oral questions", "cross_family": false }, { "answer_id": "CYL-LINER-P02-009", "score": 0.30143975019454955, "sibling_score": null, "answer_score": 0.30143975019454955, "sibling_qid": "", "sibling_text": "l9 t044 part 02 g009high definition an unworn raised step or ledge in the bore at the top and sometimes bottom limit of ring travel cause the ring does not sweep the extreme top so metal above the top ring reversal point stays unworn while the swept band below wears leaving a ridge worse with heavy wear lower down", "sibling_family": "", "via": "answer_title", "answer_title": "L9 · T044-PART_02-G009High", "cross_family": false } ] }, { "qid": "KOL-2026-10-4324-Q002", "text": "Draw card, everything is normal Exhaust pressure abnormal ?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Indicator Card / Power Card", "tid": "KOL-2026-10-4324", "tray": "review", "candidates": [ { "answer_id": "IND-CARD-B-005", "score": 0.8270962834358215, "sibling_score": 0.8270962834358215, "answer_score": null, "sibling_qid": "KOL-2022-08-1705-Q001", "sibling_text": "draw card diagram why it is called draw card if pmax pcom is normal but exhaust line above normal reason", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Interpreting Pmax, Pcomp and compression / expansion-line abnormalities", "cross_family": false }, { "answer_id": "EXH-T-HI-005", "score": 0.7830008864402771, "sibling_score": 0.7830008864402771, "answer_score": null, "sibling_qid": "KOL-2023-02-4019-Q003", "sibling_text": "in a draw card taken pmax and pcomp are good but exhaust line is high reasons", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Exhaust line high with Pmax and Pcomp normal — probable causes", "cross_family": false }, { "answer_id": "INDCARD-C-001", "score": 0.7503256797790527, "sibling_score": 0.7503256797790527, "answer_score": null, "sibling_qid": "KOC-2024-01-0987-Q008", "sibling_text": "draw early injection draw card what happens to exhaust temperature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Early/late injection, ignition delay & after-burning on the indicator card", "cross_family": false } ] }, { "qid": "KOL-2026-10-4324-Q005", "text": "How to take bottom end bearing clearance ?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Decarb Checks / Connecting Rod / Bottom End Bearing", "tid": "KOL-2026-10-4324", "tray": "review", "candidates": [ { "answer_id": "BEB-B-002", "score": 0.7925848960876465, "sibling_score": 0.7925848960876465, "answer_score": 0.6018002569675446, "sibling_qid": "MUM-2026-06-3438-Q005", "sibling_text": "me bottom end bearing how to take clearnce", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Bottom End Bearing — Clearance Measurement", "cross_family": false }, { "answer_id": "AE-CRP-007", "score": 0.7763844132423401, "sibling_score": 0.7763844132423401, "answer_score": 0.5538530111312866, "sibling_qid": "MUM-2026-05-3331-Q003", "sibling_text": "how to take bottom end bearing clearance of ae", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE big-end / bottom-end bearing — inspection, bedding, nip and crush", "cross_family": false }, { "answer_id": "XHD-BRG-B-004", "score": 0.772135317325592, "sibling_score": 0.772135317325592, "answer_score": null, "sibling_qid": "MUM-2026-05-3265-Q007", "sibling_text": "bottom end cross head bearing clearance how to take", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Measuring crosshead bearing and guide-shoe clearances", "cross_family": false } ] }, { "qid": "KOL-2026-10-4324-Q008", "text": "Propeller tightening ?", "family": "Drydock & Underwater Surveys", "subtopic": "Propeller / Pilgrim Nut", "tid": "KOL-2026-10-4324", "tray": "review", "candidates": [ { "answer_id": "PROP-PN-B-005", "score": 0.7511216998100281, "sibling_score": 0.7511216998100281, "answer_score": null, "sibling_qid": "KOL-2020-01-3316-Q003", "sibling_text": "propeller fitting checks during fitting and after tightening", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Checks before & after fitting (the 2/E's job)", "cross_family": false }, { "answer_id": "PROP-PIL-A-001", "score": 0.7313017249107361, "sibling_score": 0.7313017249107361, "answer_score": null, "sibling_qid": "KOL-2026-09-4314-Q014", "sibling_text": "how do you tighten the propeller nut and what are the steps you follow for it", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Pilgrim / SKF hydraulic nut — fitting, push-up, extraction and removal", "cross_family": false }, { "answer_id": "PROP-PIL-A-002", "score": 0.7227702736854553, "sibling_score": 0.7227702736854553, "answer_score": null, "sibling_qid": "KOL-2019-11-1501-Q002", "sibling_text": "keyed propeller problem how will u sure it loose feet or tight fit", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Bedding on the taper and fit verification", "cross_family": false } ] }, { "qid": "KOL-2026-10-4325-Q001", "text": "Type of engine Type of ship ?", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "KOL-2026-10-4325", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8300026655197144, "sibling_score": 0.8300026655197144, "answer_score": null, "sibling_qid": "MUM-2025-08-2357-Q001", "sibling_text": "type of ship type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.8066132664680481, "sibling_score": 0.8066132664680481, "answer_score": null, "sibling_qid": "MUM-2026-07-3668-Q004", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "AC-VE-001", "score": 0.7703480124473572, "sibling_score": 0.7703480124473572, "answer_score": null, "sibling_qid": "MUM-2026-01-2904-Q001", "sibling_text": "what type of ship engine power and nomenclature", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Volumetric efficiency: define it, and if it drops how do you improve it (with bumping clearance)?", "cross_family": false } ] }, { "qid": "KOL-2026-10-4325-Q002", "text": "Man and Band W , w type seat its purpose ?", "family": "Cargo Ops - Tankers", "subtopic": "IG System", "tid": "KOL-2026-10-4325", "tray": "new", "candidates": [ { "answer_id": "CHAIN-TENS-C-001", "score": 0.39888885617256165, "sibling_score": 0.39888885617256165, "answer_score": null, "sibling_qid": "KOC-2024-12-1886-Q003", "sibling_text": "man b w chain tightening and figure", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main-engine chain drive — how you know it is slack, and how you check and tighten it", "cross_family": true }, { "answer_id": "ACRV-005", "score": 0.38525649905204773, "sibling_score": 0.38525649905204773, "answer_score": null, "sibling_qid": "KOC-2026-02-1103-Q007", "sibling_text": "difference between relif vv and safety vv pop up action and blowdown explained x how blowdown is obtained told about lip on disc and blow down ring on seat area increases", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": true }, { "answer_id": "REV-PROC-002", "score": 0.37336066365242004, "sibling_score": 0.37336066365242004, "answer_score": null, "sibling_qid": "KOL-2025-08-2010-Q006", "sibling_text": "man b w reversing", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Reversing in MAN B&W MC / MC-C / ME-C / ME-B engines", "cross_family": true } ] }, { "qid": "KOL-2026-10-4325-Q003", "text": "Material valve and valve seat are made up of in main engine. What area of valve is made up of stellate ?", "family": "2-Stroke - Exhaust, Valve & Starting Air", "subtopic": "Exhaust Valve", "tid": "KOL-2026-10-4325", "tray": "new", "candidates": [ { "answer_id": "EXHV-P03-006", "score": 0.6162134408950806, "sibling_score": 0.6162134408950806, "answer_score": 0.4903062343597412, "sibling_qid": "MUM-2026-09-3892-Q010", "sibling_text": "exhaust valve seat material", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Exhaust valve materials — Stellite and Nimonic 80A: composition, use and why", "cross_family": true }, { "answer_id": "EXHV-297-001", "score": 0.5981780886650085, "sibling_score": 0.5981780886650085, "answer_score": null, "sibling_qid": "MUM-2025-09-0978-Q001", "sibling_text": "exhaust valve construction and materials", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve — construction, materials, type, working & latest developments", "cross_family": false }, { "answer_id": "EXHV-P03-007", "score": 0.5930593013763428, "sibling_score": 0.5930593013763428, "answer_score": 0.5171649158000946, "sibling_qid": "KOL-2022-09-1707-Q004", "sibling_text": "dura spindle in exhaust valve", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "DuraSpindle and the anti-wear seat arrangement (valve rotation)", "cross_family": false } ] }, { "qid": "KOL-2026-10-4325-Q004", "text": "Plate type cooler how flow is happening and how both cooling and coolant medium is separated ? said by gasket not accepted.", "family": "Heat Exchangers & Coolers", "subtopic": "Shell and Tube", "tid": "KOL-2026-10-4325", "tray": "review", "candidates": [ { "answer_id": "PTHE-003", "score": 0.6548580527305603, "sibling_score": 0.6548580527305603, "answer_score": null, "sibling_qid": "MUM-2026-06-3512-Q006", "sibling_text": "plate type heat exchanger sealing arrangement", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Opening, cleaning, overhaul, plate alignment and reassembly", "cross_family": false }, { "answer_id": "STHX-001", "score": 0.6293950080871582, "sibling_score": 0.6293950080871582, "answer_score": null, "sibling_qid": "NOI-2026-09-0019-Q001", "sibling_text": "difference between plate type cooler and shell and tube type cooler", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "STHX-01 — Construction, parts, materials, tube fitting, pass arrangement and flow", "cross_family": false }, { "answer_id": "PTHE-004", "score": 0.6290556788444519, "sibling_score": 0.6290556788444519, "answer_score": 0.4484847664833069, "sibling_qid": "KOL-2020-03-3332-Q002", "sibling_text": "plate type cooler leak detections", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Leak detection: external vs internal, and finding the plate", "cross_family": false } ] }, { "qid": "KOL-2026-10-4325-Q005", "text": "Construction of tri metal bearing and material of each layer ? said interlay is of nickel not accepted.", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "White Metal & Material", "tid": "KOL-2026-10-4325", "tray": "review", "candidates": [ { "answer_id": "WMAT-170-002", "score": 0.7421305775642395, "sibling_score": 0.7421305775642395, "answer_score": 0.5343535214662551, "sibling_qid": "KOL-2023-11-3651-Q004", "sibling_text": "trimetal bearing all layer", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bi-metal and tri-metal bearings: layers, materials, functions, advantages", "cross_family": false }, { "answer_id": "BRG-NOM-003", "score": 0.7326552867889404, "sibling_score": 0.7326552867889404, "answer_score": 0.5781269192695617, "sibling_qid": "KOC-2024-05-0994-Q005", "sibling_text": "trimetal bearing layers with thickness of each layers", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Thin-Shell, Bi-Metal and Tri-Metal Bearings — Construction and Why Thin-Shell", "cross_family": false }, { "answer_id": "MAIN-BRG-D-002", "score": 0.43777126669883726, "sibling_score": null, "answer_score": 0.43777126669883726, "sibling_qid": "", "sibling_text": "main bearing construction materials and edge design build steel back for strength and shape bonded bearing lining for the running surface the shell locates in the housing by lugs so it cannot rotate lining tin based white metal softer very tolerant of particles lower fatigue strength or tin aluminium harder higher fatigue strength used as peak pressures rose a thin tin flash layer over both", "sibling_family": "", "via": "answer_title", "answer_title": "Main bearing construction, materials and edge design", "cross_family": false } ] }, { "qid": "KOL-2026-10-4325-Q006", "text": "How to measure cam lift in man b and w engine ?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Cam Profile / Camshaft", "tid": "KOL-2026-10-4325", "tray": "review", "candidates": [ { "answer_id": "FCAM-LEAD-P04-001", "score": 0.720522403717041, "sibling_score": 0.720522403717041, "answer_score": 0.5225528240203857, "sibling_qid": "KOL-2022-04-1916-Q005", "sibling_text": "cam lift cam lead tool used measurement", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel cam lead, cam profile, negative cam and cam slip", "cross_family": false }, { "answer_id": "COS343-005", "score": 0.6364485621452332, "sibling_score": 0.6364485621452332, "answer_score": null, "sibling_qid": "KOL-2020-11-3364-Q005", "sibling_text": "say more then he said best is to lift the pump follower above the cam", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Why is the rack/governor linkage to zero not enough — and what follower-lifting method is used?", "cross_family": false }, { "answer_id": "FCL-P01-001", "score": 0.5891456007957458, "sibling_score": 0.5891456007957458, "answer_score": null, "sibling_qid": "KOL-2026-05-4091-Q001", "sibling_text": "how to measure fuel pump lead and cam lead name the instrument", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel pump lead and fuel cam lead: meaning, measurement, significance and adjustment", "cross_family": false } ] }, { "qid": "KOL-2026-10-4325-Q007", "text": "If the simplex seal of ( something said) liner is worn out how it can be repaired ?", "family": "Shafting, Propeller & Rudder", "subtopic": "Stern Tube / Tail Shaft Bearings", "tid": "KOL-2026-10-4325", "tray": "new", "candidates": [ { "answer_id": "STT-BRG-006", "score": 0.6397626996040344, "sibling_score": 0.6397626996040344, "answer_score": null, "sibling_qid": "KOL-2022-06-3543-Q002", "sibling_text": "simplex seal leaking what are the reasons for leaking during inspection crome liner is had groove you have no spare what to do", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "5. Seal leakage — corrective action at sea and in dry dock", "cross_family": false }, { "answer_id": "METAL-LOCK-003", "score": 0.6018569469451904, "sibling_score": 0.6018569469451904, "answer_score": null, "sibling_qid": "KOL-2018-08-3184-Q001", "sibling_text": "liner cracked how to repair", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Cold repair of cracked cast-iron parts: liner, pump/valve cage, loose bearing seat", "cross_family": true }, { "answer_id": "CYL-LINER-P03-001", "score": 0.575843334197998, "sibling_score": 0.575843334197998, "answer_score": null, "sibling_qid": "KOL-2024-06-3701-Q003", "sibling_text": "how to repair crack in liner", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Cracked cylinder liner — can it be repaired, and what are the options?", "cross_family": true } ] }, { "qid": "KOL-2026-10-4325-Q008", "text": "what is plasma coated piston ring and how is is made ?", "family": "2-Stroke - Components (Other)", "subtopic": "Piston Rings", "tid": "KOL-2026-10-4325", "tray": "review", "candidates": [ { "answer_id": "PRING-B-003", "score": 0.7420365214347839, "sibling_score": 0.7420365214347839, "answer_score": null, "sibling_qid": "KOL-2022-03-1665-Q001", "sibling_text": "piston ring coating plasma coating", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Material, coating & manufacture", "cross_family": false }, { "answer_id": "PIST-CSI-C-001", "score": 0.6335821747779846, "sibling_score": 0.6335821747779846, "answer_score": null, "sibling_qid": "KOL-2018-02-1354-Q007", "sibling_text": "reconditioning of piston after severe pitting how it s done i said plasma coating he wanted to know complete sequence", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston crown damage — pitting, burning, cracks and reconditioning", "cross_family": false }, { "answer_id": "PIST-CSI-B-001", "score": 0.5908868312835693, "sibling_score": 0.5908868312835693, "answer_score": null, "sibling_qid": "KOL-2022-08-1703-Q005", "sibling_text": "coating on piston", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Main-engine piston — construction and the checks expected", "cross_family": false } ] }, { "qid": "KOL-2026-10-4326-Q001", "text": "how many attempts ?", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOL-2026-10-4326", "tray": "new", "candidates": [ { "answer_id": "CHAIN-TENS-A-003", "score": 0.5309211015701294, "sibling_score": 0.5309211015701294, "answer_score": null, "sibling_qid": "MUM-2026-02-2546-Q006", "sibling_text": "6 repeat", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "Chain Tightening Procedure — MC / MC-C / ME", "cross_family": false }, { "answer_id": "CTRL-TL-010", "score": 0.44421201944351196, "sibling_score": 0.44421201944351196, "answer_score": null, "sibling_qid": "KOL-2018-12-2250-Q004", "sibling_text": "4 failsafematic", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Pneumatic control: nozzle-flapper, DP, actuators and fail-safe", "cross_family": true }, { "answer_id": "SG-055-B-003", "score": 0.4178459644317627, "sibling_score": 0.4178459644317627, "answer_score": null, "sibling_qid": "KOL-2021-08-1619-Q004", "sibling_text": "50 redundancy", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Redundancy and the single-failure requirement (50% / 100%)", "cross_family": true } ] }, { "qid": "KOL-2026-10-4326-Q003", "text": "What cause foam to become high exp and low exp ?", "family": "SOLAS - Fire Safety", "subtopic": "Foam System / Monitor", "tid": "KOL-2026-10-4326", "tray": "new", "candidates": [ { "answer_id": "FOAM-032-P03-002", "score": 0.6054012179374695, "sibling_score": 0.6054012179374695, "answer_score": null, "sibling_qid": "KOL-2020-01-0379-Q005", "sibling_text": "foam surfactant additives used in foam high expansion foam low expansion foam what is expansion ratio advantages disadvantages he went deeply inside the foam", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "High-expansion foam generator / nozzle arrangement — draw and explain", "cross_family": false }, { "answer_id": "FOAM-SYS-P04-001", "score": 0.591656506061554, "sibling_score": 0.591656506061554, "answer_score": 0.3905819788575172, "sibling_qid": "MUM-2023-07-2739-Q002", "sibling_text": "expansion of foam low high ratio mechanism", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "4. Expansion ratios — low, medium, high", "cross_family": false }, { "answer_id": "FOAM-SYS-P06-002", "score": 0.5823931097984314, "sibling_score": 0.5823931097984314, "answer_score": null, "sibling_qid": "CHE-2026-04-0139-Q006", "sibling_text": "difference between high and low exp foam", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "2. Maintenance routines — fixed foam system & concentrate", "cross_family": false } ] }, { "qid": "KOL-2026-10-4326-Q004", "text": "Watertight door properties ?", "family": "SOLAS - Watertight & Closing Appliances", "subtopic": "Watertight Door", "tid": "KOL-2026-10-4326", "tray": "review", "candidates": [ { "answer_id": "WEATH-545-001", "score": 0.7292724251747131, "sibling_score": 0.7292724251747131, "answer_score": 0.403151273727417, "sibling_qid": "MUM-2026-09-3882-Q006", "sibling_text": "water tight door", "sibling_family": "SOLAS - Watertight & Closing Appliances", "via": "sibling", "answer_title": "What is weathertight, and how does it differ from watertight — meaning, application, location and testing?", "cross_family": false }, { "answer_id": "WTD-001", "score": 0.6835295557975769, "sibling_score": 0.6835295557975769, "answer_score": 0.47237464189529416, "sibling_qid": "KOL-2025-11-1126-Q001", "sibling_text": "watertight door regulations", "sibling_family": "SOLAS - Watertight & Closing Appliances", "via": "sibling", "answer_title": "What watertight doors are, the types fitted, and the SOLAS/Class requirements", "cross_family": false }, { "answer_id": "WTD-002", "score": 0.6649059057235718, "sibling_score": 0.6649059057235718, "answer_score": 0.39154352992773056, "sibling_qid": "CHE-2026-09-3914-Q005", "sibling_text": "what things to check in water tight door", "sibling_family": "SOLAS - Watertight & Closing Appliances", "via": "sibling", "answer_title": "Inspecting, maintaining and testing watertight doors and watertight integrity in survey", "cross_family": false } ] }, { "qid": "KOL-2026-10-4326-Q005", "text": "Cyber security under ISM code ?", "family": "ISM Code", "subtopic": "Cyber Security", "tid": "KOL-2026-10-4326", "tray": "new", "candidates": [ { "answer_id": "CYBER-SEC-001", "score": 0.6178398728370667, "sibling_score": 0.6178398728370667, "answer_score": 0.5779876440763473, "sibling_qid": "MUM-2023-03-0097-Q006", "sibling_text": "ements of cyber risk security", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is cyber security / cyber risk management onboard, and its requirements and elements?", "cross_family": false }, { "answer_id": "CYBER-SEC-003", "score": 0.5953841209411621, "sibling_score": 0.5953841209411621, "answer_score": 0.4802560269832611, "sibling_qid": "KOC-2024-05-1357-Q004", "sibling_text": "flemings right hand rule and application onboard paul sir how cyber security is managed onboard he wanted details of identify detect protect reapond and recover", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "How would you implement and manage cyber security onboard, including cyber hygiene and the identify-protect-detect-respond-recover controls?", "cross_family": false }, { "answer_id": "CYBER-SEC-002", "score": 0.5793787837028503, "sibling_score": 0.5793787837028503, "answer_score": null, "sibling_qid": "KOC-2022-09-0089-Q006", "sibling_text": "cyber security risk management what is it and ot", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What are IT and OT in shipboard cyber risk management, and how do they differ?", "cross_family": false } ] }, { "qid": "KOL-2026-10-4327-Q001", "text": "Pump room safeties? Ventilation fan arrangements?", "family": "Cargo Ops - Tankers", "subtopic": "Pump Room Safety", "tid": "KOL-2026-10-4327", "tray": "review", "candidates": [ { "answer_id": "PR-SAFE-A-003", "score": 0.7428494691848755, "sibling_score": 0.7428494691848755, "answer_score": 0.5911115825176239, "sibling_qid": "KOL-2018-08-1861-Q014", "sibling_text": "pump room ventilation", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Pump-room ventilation requirements and interlocks", "cross_family": false }, { "answer_id": "PUMPRM-B-004", "score": 0.6830308437347412, "sibling_score": 0.6830308437347412, "answer_score": null, "sibling_qid": "CHE-2021-06-0001-Q008", "sibling_text": "pump room all safeties", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Safeties provided in a cargo pump room", "cross_family": false }, { "answer_id": "PR-SAFE-A-002", "score": 0.664702296257019, "sibling_score": 0.664702296257019, "answer_score": null, "sibling_qid": "KOC-2024-10-0431-Q007", "sibling_text": "fixed gas detection system in pump room which all gases monitored", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Pump-room fixed gas detection and atmosphere monitoring", "cross_family": false } ] }, { "qid": "KOL-2026-10-4327-Q002", "text": "P and A manual? NLS category?", "family": "MARPOL - Annex II (NLS)", "subtopic": "Chemical Cargo / P&A Manual", "tid": "KOL-2026-10-4327", "tray": "review", "candidates": [ { "answer_id": "CHEM-PA-002", "score": 0.6940664052963257, "sibling_score": 0.6940664052963257, "answer_score": null, "sibling_qid": "KOL-2025-08-1008-Q002", "sibling_text": "nls and category", "sibling_family": "MARPOL - Annex II (NLS)", "via": "sibling", "answer_title": "Noxious liquid substances and their categories", "cross_family": false }, { "answer_id": "CHEM-PA-001", "score": 0.5228978991508484, "sibling_score": 0.5228978991508484, "answer_score": null, "sibling_qid": "KOL-2026-03-1209-Q003", "sibling_text": "what is p and a manual", "sibling_family": "MARPOL - Annex II (NLS)", "via": "sibling", "answer_title": "Scope and applicability of MARPOL Annex II", "cross_family": false }, { "answer_id": "CHEM-PA-003", "score": 0.4948073625564575, "sibling_score": 0.4948073625564575, "answer_score": null, "sibling_qid": "KOL-2025-07-0972-Q002", "sibling_text": "p a manual", "sibling_family": "MARPOL - Annex II (NLS)", "via": "sibling", "answer_title": "The Procedures & Arrangements (P&A) Manual", "cross_family": false } ] }, { "qid": "KOL-2026-10-4327-Q003", "text": "Training manual? Ship security description?", "family": "SOLAS - Fire Safety", "subtopic": "FSS Code", "tid": "KOL-2026-10-4327", "tray": "review", "candidates": [ { "answer_id": "ISPS-SSP-P01-001", "score": 0.6831328272819519, "sibling_score": 0.6831328272819519, "answer_score": 0.5276790529489517, "sibling_qid": "KOC-2023-02-0148-Q006", "sibling_text": "ship security plan", "sibling_family": "ISPS", "via": "sibling", "answer_title": "Ship Security Plan (SSP): purpose, scope & contents", "cross_family": true }, { "answer_id": "ISPS-SSP-P02-001", "score": 0.6773163080215454, "sibling_score": 0.6773163080215454, "answer_score": null, "sibling_qid": "KOC-2024-11-0475-Q009", "sibling_text": "ship security plan content", "sibling_family": "ISPS", "via": "sibling", "answer_title": "Ship Security Plan (SSP) — purpose, scope and contents", "cross_family": true }, { "answer_id": "ISPS-SSP-P02-002", "score": 0.6627838611602783, "sibling_score": 0.6627838611602783, "answer_score": null, "sibling_qid": "KOC-2023-08-0216-Q008", "sibling_text": "4 steps for preparing ship security plan", "sibling_family": "ISPS", "via": "sibling", "answer_title": "SSP — who prepares it, approval, and who has access", "cross_family": true } ] }, { "qid": "KOL-2026-10-4327-Q004", "text": "Life boat static and dynamic testing?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Lifeboat Static / Dynamic Test", "tid": "KOL-2026-10-4327", "tray": "review", "candidates": [ { "answer_id": "LB-SDT-A-001", "score": 0.8382541537284851, "sibling_score": 0.8382541537284851, "answer_score": 0.5486788034439086, "sibling_qid": "KOC-2022-01-0045-Q009", "sibling_text": "lifeboat static and dynamic test int", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat static and dynamic test — purpose and procedure", "cross_family": false }, { "answer_id": "LBT-TEST-B-004", "score": 0.8008914589881897, "sibling_score": 0.8008914589881897, "answer_score": null, "sibling_qid": "KOL-2019-08-0312-Q005", "sibling_text": "lifeboat testing static nd dynamic", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Tests carried out on the lifeboat/davit onboard (overview)", "cross_family": false }, { "answer_id": "LB-DAVIT-HRU-007", "score": 0.5120216637849807, "sibling_score": null, "answer_score": 0.5120216637849807, "sibling_qid": "", "sibling_text": "lifeboat static and dynamic load test static structure test launching appliance and attachments other than winch brakes factory static proof load 2 2 times mwl lsa 6 1 1 5 winch brake static test proof load 1 5 times mwl lsa 6 1 2 5", "sibling_family": "", "via": "answer_title", "answer_title": "Lifeboat static and dynamic load test", "cross_family": false } ] }, { "qid": "KOL-2026-10-4327-Q005", "text": "Hyper mist regulation ? ", "family": "SOLAS - Fire Safety", "subtopic": "Sprinkler / Water Mist / Hi-Fog", "tid": "KOL-2026-10-4327", "tray": "review", "candidates": [ { "answer_id": "FIRE-P02-01", "score": 0.7509271502494812, "sibling_score": 0.7509271502494812, "answer_score": null, "sibling_qid": "KOL-2025-10-1109-Q002", "sibling_text": "hypermist regulation", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist — SOLAS/FSS basis and ECR/machinery-space arrangement", "cross_family": false }, { "answer_id": "FIRE-P01-01", "score": 0.702575147151947, "sibling_score": 0.702575147151947, "answer_score": 0.33428812623023985, "sibling_qid": "MUM-2026-06-3586-Q002", "sibling_text": "hyper mist working", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist / water-mist system — draw and explain the machinery-space arrangement and normal working", "cross_family": false }, { "answer_id": "FIRE-P02-04", "score": 0.3838641673326492, "sibling_score": null, "answer_score": 0.3838641673326492, "sibling_qid": "", "sibling_text": "hypermist vs sprinkler and co comparison and coexistence sprinkler fss ch 8 accommodation service spaces and control stations low pressure large droplets wet and cool single head activation on heat water mist fss ch 7 msc 1 circ 1387 for local application machinery space local application high pressure fine droplets evaporative cooling and steam envelope oxygen displacement", "sibling_family": "", "via": "answer_title", "answer_title": "Hypermist vs sprinkler and CO₂ — comparison and coexistence", "cross_family": false } ] }, { "qid": "KOL-2026-10-4327-Q006", "text": "Co2 room 10 years maintenance ? Decider ques", "family": "SOLAS - Fire Safety", "subtopic": "CO2 System", "tid": "KOL-2026-10-4327", "tray": "review", "candidates": [ { "answer_id": "CO2-SYS-P06-001", "score": 0.7022140622138977, "sibling_score": 0.7022140622138977, "answer_score": null, "sibling_qid": "MUM-2025-06-0310-Q007", "sibling_text": "10 yearly maintenance of co2 system", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 fixed system — full maintenance and inspection schedule (weekly to 10-yearly, and the revised cylinder-test regime)", "cross_family": false }, { "answer_id": "CO2-SYS-002", "score": 0.6986870169639587, "sibling_score": 0.6986870169639587, "answer_score": 0.3699803456664085, "sibling_qid": "CHE-2026-04-0143-Q002", "sibling_text": "co2 ten year maintenance", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 maintenance, inspection, testing and survey routines", "cross_family": false }, { "answer_id": "CO2-SYS-P08-001", "score": 0.40037468671798704, "sibling_score": null, "answer_score": 0.40037468671798704, "sibling_qid": "", "sibling_text": "co2 room safety location access and ventilation arrangements", "sibling_family": "", "via": "answer_title", "answer_title": "CO2 room safety, location, access and ventilation arrangements", "cross_family": false } ] }, { "qid": "KOL-2026-10-4327-Q007", "text": "Propeller drop? Procedure to fit propeller? Decider ques", "family": "Drydock & Underwater Surveys", "subtopic": "Propeller / Pilgrim Nut", "tid": "KOL-2026-10-4327", "tray": "review", "candidates": [ { "answer_id": "STERN-TUBE-TAIL-SHAFT-002", "score": 0.6899619698524475, "sibling_score": 0.6899619698524475, "answer_score": null, "sibling_qid": "KOL-2020-09-3347-Q002", "sibling_text": "propeller drop complete procedure", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "PROP-PN-C-002", "score": 0.6567490100860596, "sibling_score": 0.6567490100860596, "answer_score": 0.45641965270042417, "sibling_qid": "KOL-2026-04-3945-Q003", "sibling_text": "propeller drop check how to do", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Propeller drop — measurement and consequences", "cross_family": false }, { "answer_id": "PROP-RP-001", "score": 0.4513679504394531, "sibling_score": null, "answer_score": 0.4513679504394531, "sibling_qid": "", "sibling_text": "propeller removal procedure tools and sequence make safe first ship landed and blocked shaft locked turning gear disengaged and isolated engine cannot be started area barriered take and record the propeller drop wear down poker bridge gauge before disturbing anything", "sibling_family": "", "via": "answer_title", "answer_title": "Propeller removal — procedure, tools and sequence", "cross_family": false } ] }, { "qid": "KOL-2026-10-4327-Q008", "text": "Life boat davit 5 years maintenance ? Decider ques", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Davit / Release Gear", "tid": "KOL-2026-10-4327", "tray": "review", "candidates": [ { "answer_id": "LB-DAVIT-HRU-005", "score": 0.7859904766082764, "sibling_score": 0.7859904766082764, "answer_score": 0.5696821510791779, "sibling_qid": "MUM-2022-09-0046-Q005", "sibling_text": "5 yearly maintenance on life boat david winch", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "The 5-yearly maintenance and testing of the lifeboat davit and winch", "cross_family": false }, { "answer_id": "LBT-TEST-B-002", "score": 0.7728301882743835, "sibling_score": 0.7728301882743835, "answer_score": 0.494169157743454, "sibling_qid": "CHE-2026-09-3917-Q011", "sibling_text": "5 year life boat maintenance deciding ques", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Annual and 5-yearly lifeboat/davit tests (the servicing regime)", "cross_family": false }, { "answer_id": "DRG-B-006", "score": 0.7224172949790955, "sibling_score": 0.7224172949790955, "answer_score": null, "sibling_qid": "KOL-2021-12-0583-Q005", "sibling_text": "lifeboat yearly maintenance as 2e lowering and davit and fall maintenance", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Falls — maintenance, end-for-ending and renewal", "cross_family": false } ] }, { "qid": "KOL-2026-10-4328-Q001", "text": "Liquefaction of cargo?", "family": "Other Conventions", "subtopic": "IMDG Code", "tid": "KOL-2026-10-4328", "tray": "review", "candidates": [ { "answer_id": "IMSBC-BULK-002", "score": 0.6585500240325928, "sibling_score": 0.6585500240325928, "answer_score": 0.5195844233036041, "sibling_qid": "MUM-2024-11-0219-Q006", "sibling_text": "liquification of cargo preventive measures", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Liquefaction, moisture content and TML", "cross_family": true }, { "answer_id": "LPG-LNG-001", "score": 0.6038662195205688, "sibling_score": 0.6038662195205688, "answer_score": null, "sibling_qid": "KOL-2023-08-0761-Q003", "sibling_text": "type of tanker lpg why carried in liquid form", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "LPG vs LNG – properties, carriage and comparison", "cross_family": true }, { "answer_id": "SOLAS12-BC-E-003", "score": 0.5794047713279724, "sibling_score": 0.5794047713279724, "answer_score": null, "sibling_qid": "KOC-2025-04-0588-Q008", "sibling_text": "de watering in bulk carrier", "sibling_family": "", "via": "sibling", "answer_title": "Dewatering system / availability of pumping systems — SOLAS XII/13", "cross_family": false } ] }, { "qid": "KOL-2026-10-4328-Q002", "text": "How crosshead lubrication is carried out in 2s engine?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Crosshead Bearing", "tid": "KOL-2026-10-4328", "tray": "review", "candidates": [ { "answer_id": "XHD-BRG-C-004", "score": 0.6824886202812195, "sibling_score": 0.6824886202812195, "answer_score": 0.496165469288826, "sibling_qid": "KOL-2025-07-1818-Q001", "sibling_text": "crosshead and guide shoes lubrication carried out in mc engine", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "D. Crosshead and guide-shoe lubrication: oil path, the no-load-reversal film problem, MAN vs Sulzer", "cross_family": false }, { "answer_id": "CXH-BRG-FINAL-1-004", "score": 0.6676133275032043, "sibling_score": 0.6676133275032043, "answer_score": 0.54814313352108, "sibling_qid": "KOL-2017-07-1309-Q003", "sibling_text": "main engine crosshead lubrication", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead lubrication: how oil reaches the crosshead", "cross_family": false }, { "answer_id": "XHD-BRG-B-005", "score": 0.6630286574363708, "sibling_score": 0.6630286574363708, "answer_score": null, "sibling_qid": "KOL-2023-01-1927-Q002", "sibling_text": "crosshead lubrication", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How crosshead lubrication is achieved — and why it is the hard one", "cross_family": false } ] }, { "qid": "KOL-2026-10-4328-Q003", "text": "Miller cycle?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Miller / Otto / Diesel Cycle", "tid": "KOL-2026-10-4328", "tray": "review", "candidates": [ { "answer_id": "CPP-TCV-02", "score": 0.6973374485969543, "sibling_score": 0.6973374485969543, "answer_score": 0.3991291135549545, "sibling_qid": "MUM-2023-05-2728-Q003", "sibling_text": "what is millers cycle explain millers cycle", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Miller cycle — principle and PV effect", "cross_family": false }, { "answer_id": "CPP-TCV-03", "score": 0.3387527853250503, "sibling_score": null, "answer_score": 0.3387527853250503, "sibling_qid": "", "sibling_text": "applying miller timing to 4 stroke and 2 stroke engines 4s miller inlet valve timing modification eivc close before bdc or livc close after bdc on compression stroke 2s uniflow miller exhaust valve timing modification the 2s has no inlet valve so exhaust valve closing is the only variable timing feature on the trapping side", "sibling_family": "", "via": "answer_title", "answer_title": "Applying Miller timing to 4-stroke and 2-stroke engines", "cross_family": false }, { "answer_id": "CPP-TCV-04", "score": 0.3354206174612045, "sibling_score": null, "answer_score": 0.3354206174612045, "sibling_qid": "", "sibling_text": "miller cycle for nox reduction and power recovery millerreduces nox this is the first thing the examiner listens for state it up front mechanism early ivc 4s or shifted exhaust valve timing 2s lower effective cr lower peak compression t lower peak combustion t lower nox exhaust temperature also drops", "sibling_family": "", "via": "answer_title", "answer_title": "Miller cycle for NOx reduction and power recovery", "cross_family": false } ] }, { "qid": "KOL-2026-10-4328-Q004", "text": "Ogee ring?", "family": "Boilers - Construction & Components", "subtopic": "Ogee Ring", "tid": "KOL-2026-10-4328", "tray": "review", "candidates": [ { "answer_id": "OGEE-RING-001", "score": 0.6898186206817627, "sibling_score": 0.6898186206817627, "answer_score": 0.4009989932179451, "sibling_qid": "KOC-2026-09-2179-Q005", "sibling_text": "ogee ring", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "The ogee ring: what it is, where it sits, its purpose, and how it's formed and connected", "cross_family": false }, { "answer_id": "CYL-LINER-P02-009", "score": 0.3324787899851799, "sibling_score": null, "answer_score": 0.3324787899851799, "sibling_qid": "", "sibling_text": "l9 t044 part 02 g009high definition an unworn raised step or ledge in the bore at the top and sometimes bottom limit of ring travel cause the ring does not sweep the extreme top so metal above the top ring reversal point stays unworn while the swept band below wears leaving a ridge worse with heavy wear lower down", "sibling_family": "", "via": "answer_title", "answer_title": "L9 · T044-PART_02-G009High", "cross_family": false }, { "answer_id": "PRING-B-006", "score": 0.31504294425249096, "sibling_score": null, "answer_score": 0.31504294425249096, "sibling_qid": "", "sibling_text": "general oral questions oblique angular or stepped ring gap joint seals across the gap as it wears avoiding the straight blow by path of a plain butt cut the man b w cpr ring uses a gas tight double s lock finger lock joint engine top ring taller thicker than a compressor ring it takes far higher combustion pressure and temperature so it needs strength bearing area and heat transfer capacity the co", "sibling_family": "", "via": "answer_title", "answer_title": "General oral questions", "cross_family": false } ] }, { "qid": "KOL-2026-10-4328-Q005", "text": "Working principle of Screw pump?", "family": "Pumps - Centrifugal & PD", "subtopic": "Gear / Screw / Mono Pump", "tid": "KOL-2026-10-4328", "tray": "review", "candidates": [ { "answer_id": "PCD-P05-02", "score": 0.8197209239006042, "sibling_score": 0.8197209239006042, "answer_score": 0.6331625580787659, "sibling_qid": "KOL-2026-10-4324-Q007", "sibling_text": "screw type pump working", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Screw pump — construction, working, types, drive arrangement, clearances, why preferred over gear", "cross_family": false }, { "answer_id": "PCP-BF01-001", "score": 0.5208116054534911, "sibling_score": null, "answer_score": 0.5208116054534911, "sibling_qid": "", "sibling_text": "what is a progressive cavity pump construction and working rotary positive displacement pump single start helical rotor inside a twin start elastomer stator the stator pitch is twice the rotor pitch the interference fit between rotor and stator is the seal no running clearance no suction or discharge valves", "sibling_family": "", "via": "answer_title", "answer_title": "What is a progressive cavity pump — construction and working", "cross_family": false }, { "answer_id": "CPFE-583-016", "score": 0.5143812358379364, "sibling_score": null, "answer_score": 0.5143812358379364, "sibling_qid": "", "sibling_text": "loading through the pump flow path and direction of rotation flow axial in at the suction bell radial out through the impeller into the volute up the discharge pipe to the top plate rotation as marked wrong rotation still pumps but with badly reduced head it is a trap not a stoppage", "sibling_family": "", "via": "answer_title", "answer_title": "Loading through the pump, flow path and direction of rotation", "cross_family": false } ] }, { "qid": "KOL-2026-10-4329-Q001", "text": "Torsion box why fitted and where fitted ?", "family": "Ship Construction & Stability", "subtopic": "Double Bottom / Torsion Box", "tid": "KOL-2026-10-4329", "tray": "review", "candidates": [ { "answer_id": "DB-TORBOX-B-001", "score": 0.6725546717643738, "sibling_score": 0.6725546717643738, "answer_score": 0.44843531847000123, "sibling_qid": "KOL-2026-06-0001-Q002S2", "sibling_text": "why torsion box needed", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Torsion box — purpose, location, and why container ships", "cross_family": false }, { "answer_id": "DB-TORBOX-B-003", "score": 0.6437740325927734, "sibling_score": 0.6437740325927734, "answer_score": 0.4184991061687469, "sibling_qid": "MUM-2026-05-3233-Q001", "sibling_text": "torsion box", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "What is a torsion box — definition and construction", "cross_family": false }, { "answer_id": "CONT-FIRE-FINAL-1-004", "score": 0.6383267045021057, "sibling_score": 0.6383267045021057, "answer_score": null, "sibling_qid": "KOL-2026-05-4094-Q003", "sibling_text": "why torsional box is fitted", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Container ship construction differences and the torsion box", "cross_family": true } ] }, { "qid": "KOL-2026-10-4329-Q002", "text": "Parametric rolling criteria ?", "family": "Ship Construction & Stability", "subtopic": "Parametric / Synchronous Rolling", "tid": "KOL-2026-10-4329", "tray": "review", "candidates": [ { "answer_id": "PAR-ROLL-001", "score": 0.7029730677604675, "sibling_score": 0.7029730677604675, "answer_score": 0.410222390294075, "sibling_qid": "MUM-2026-03-0810-Q001", "sibling_text": "explain parametric rolling", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "01. What is parametric rolling?", "cross_family": false }, { "answer_id": "PAR-ROLL-007", "score": 0.7029730677604675, "sibling_score": 0.7029730677604675, "answer_score": 0.3959050625562668, "sibling_qid": "MUM-2026-06-3622-Q005", "sibling_text": "explain parametric rolling", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "07. Variant / garbled wording (declared interpretation: parametric rolling)", "cross_family": false }, { "answer_id": "PAR-ROLL-004", "score": 0.37661438435316086, "sibling_score": null, "answer_score": 0.37661438435316086, "sibling_qid": "", "sibling_text": "04 parametric vs synchronous rolling and the sequential prismatic variants synchronous direct forced resonance encounter period natural roll period 1 1 typically beam near beam seas driven by the wave s direct rolling moment parametric resonance from cyclic gm gz righting moment variation the principal container ship case is encounter period roll period 2 1 so stability varies at about twice the r", "sibling_family": "", "via": "answer_title", "answer_title": "04. Parametric vs synchronous rolling (and the ‘sequential / prismatic’ variants)", "cross_family": false } ] }, { "qid": "KOL-2026-10-4329-Q003", "text": "Cargo hold fire detection system ?", "family": "SOLAS - Fire Safety", "subtopic": "Cargo Hold Fire", "tid": "KOL-2026-10-4329", "tray": "review", "candidates": [ { "answer_id": "CH-FIRE-001", "score": 0.8619440197944641, "sibling_score": 0.8619440197944641, "answer_score": 0.6194892704486846, "sibling_qid": "KOL-2025-08-1022-Q011", "sibling_text": "cargo hold fire detection arrangement", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Cargo hold fire detection / smoke detection system", "cross_family": false }, { "answer_id": "CONT-FIRE-FINAL-1-002", "score": 0.6557311177253723, "sibling_score": null, "answer_score": 0.6557311177253723, "sibling_qid": "", "sibling_text": "cargo hold fire detection ventilation shut off and the sample extraction system detection sample extraction smoke detection system per hold sampling pipes to a bridge cabinet approved under the fss code locates the fire to a specific hold first actions as 2 e alarm muster confirm the hold", "sibling_family": "", "via": "answer_title", "answer_title": "Cargo-hold fire — detection, ventilation shut-off and the sample-extraction system", "cross_family": false }, { "answer_id": "WIDAS-SMK-006", "score": 0.6472056925296783, "sibling_score": null, "answer_score": 0.6472056925296783, "sibling_qid": "", "sibling_text": "cargo hold smoke fire detection system and how it works", "sibling_family": "", "via": "answer_title", "answer_title": "Cargo-hold smoke / fire detection system and how it works", "cross_family": false } ] }, { "qid": "KOL-2026-10-4329-Q004", "text": "Rudder drop where taken? why taken ?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Drop", "tid": "KOL-2026-10-4329", "tray": "new", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.5530837178230286, "sibling_score": 0.5530837178230286, "answer_score": 0.38366903513669964, "sibling_qid": "KOL-2026-09-4314-Q016", "sibling_text": "where do you take the rudder drop", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "RUD-DROP-003", "score": 0.5180820822715759, "sibling_score": 0.5180820822715759, "answer_score": 0.3382461458444595, "sibling_qid": "CHE-2021-07-0171-Q007", "sibling_text": "rudder drop is more wat actions you take during sailing", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Rudder drop at the limit: the decision", "cross_family": false }, { "answer_id": "STERN-TUBE-TAIL-SHAFT-002", "score": 0.49707359075546265, "sibling_score": 0.49707359075546265, "answer_score": 0.3114407122135162, "sibling_qid": "KOL-2021-04-3397-Q001", "sibling_text": "propeller drop why taken", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "", "cross_family": true } ] }, { "qid": "KOL-2026-10-4329-Q005", "text": "Pintle clearance why take ?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2026-10-4329", "tray": "new", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.5693690776824951, "sibling_score": 0.5693690776824951, "answer_score": null, "sibling_qid": "NOI-2026-09-0024-Q001", "sibling_text": "pintle clearance", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": true }, { "answer_id": "RUN-CLR-003", "score": 0.47204238176345825, "sibling_score": 0.47204238176345825, "answer_score": null, "sibling_qid": "KOC-2026-05-2137-Q003", "sibling_text": "why jumping clearance", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Jumping clearance — how it is measured and where it is checked", "cross_family": false }, { "answer_id": "CRKPIN-P02-002", "score": 0.47064271569252014, "sibling_score": 0.47064271569252014, "answer_score": null, "sibling_qid": "CHE-2025-12-0460-Q005", "sibling_text": "why we take crankpin bearing clearance at the bottom", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankpin bearing clearance — measurement and interpretation", "cross_family": true } ] }, { "qid": "KOL-2026-10-4329-Q006", "text": "Keyless propeller fitting ?", "family": "Drydock & Underwater Surveys", "subtopic": "Propeller / Pilgrim Nut", "tid": "KOL-2026-10-4329", "tray": "review", "candidates": [ { "answer_id": "PROP-PN-B-002", "score": 0.8129634261131287, "sibling_score": 0.8129634261131287, "answer_score": null, "sibling_qid": "KOL-2021-08-1623-Q004", "sibling_text": "keyless propeller fitting", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Fitting a keyless propeller (oil-injection push-up method)", "cross_family": false }, { "answer_id": "PROP-PN-B-005", "score": 0.7726413011550903, "sibling_score": 0.7726413011550903, "answer_score": null, "sibling_qid": "KOL-2022-08-3560-Q002", "sibling_text": "after keyless propeller survey your action before fitting propeller", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Checks before & after fitting (the 2/E's job)", "cross_family": false }, { "answer_id": "PROP-PN-B-004", "score": 0.7687641978263855, "sibling_score": 0.7687641978263855, "answer_score": null, "sibling_qid": "KOC-2024-10-2055-Q014", "sibling_text": "keyless propeller removing and fitting", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Removing / withdrawing a keyless propeller", "cross_family": false } ] }, { "qid": "KOL-2026-10-4329-Q007", "text": "Cast iron sleeve material and how the bonding is done ?", "family": "NDT & Material Testing", "subtopic": "Material Properties", "tid": "KOL-2026-10-4329", "tray": "new", "candidates": [ { "answer_id": "PROP-PIL-A-001", "score": 0.5404919385910034, "sibling_score": 0.5404919385910034, "answer_score": null, "sibling_qid": "MUM-2025-08-2353-Q003", "sibling_text": "material of sleeve between the propeller boss and shaft why used how fitted fitting process properties of pearlitic grey cast iron", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Pilgrim / SKF hydraulic nut — fitting, push-up, extraction and removal", "cross_family": true }, { "answer_id": "PROP-PN-C-001", "score": 0.5403772592544556, "sibling_score": 0.5403772592544556, "answer_score": null, "sibling_qid": "KOL-2025-07-3814-Q003", "sibling_text": "propeller hub sleve material and how it is fitted perlitic cast iron joined by pressurised adeldrite", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Keyless propeller — sleeve, boss fit and material", "cross_family": true }, { "answer_id": "MATPROP-A-003", "score": 0.5253428220748901, "sibling_score": 0.5253428220748901, "answer_score": null, "sibling_qid": "KOC-2026-08-2155-Q004", "sibling_text": "cast iron and composition", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Cast iron: grey, white, nodular; versus cast steel", "cross_family": false } ] }, { "qid": "KOL-2026-10-4329-Q008", "text": "Crosshead bearing properties ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Crosshead Bearing", "tid": "KOL-2026-10-4329", "tray": "review", "candidates": [ { "answer_id": "XHD-BRG-C-005", "score": 0.7517008185386658, "sibling_score": 0.7517008185386658, "answer_score": 0.5246375441551209, "sibling_qid": "CHE-2026-05-0609-Q012", "sibling_text": "cross head advantage tri metal bearing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "E. Crosshead bearing design specialities: load max/min position, large pin, oil grooves, why no separate pump", "cross_family": false }, { "answer_id": "CXH-BRG-FINAL-1-006", "score": 0.7403948903083801, "sibling_score": 0.7403948903083801, "answer_score": null, "sibling_qid": "MUM-2026-06-3472-Q009", "sibling_text": "crosshead bearing clearance lots of cross", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead & guide-shoe clearances: how, where, how much, piston position & why", "cross_family": false }, { "answer_id": "XHEAD-303-004", "score": 0.737015426158905, "sibling_score": 0.737015426158905, "answer_score": null, "sibling_qid": "CHE-2026-08-3870-Q003", "sibling_text": "cross head bearing stresses", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Stresses acting on the crosshead and its components", "cross_family": false } ] }, { "qid": "KOL-2026-10-4329-Q009", "text": "How to take out lower main bearing from a generator which is upside type ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Main Bearing", "tid": "KOL-2026-10-4329", "tray": "review", "candidates": [ { "answer_id": "MN-BRG-C-001", "score": 0.8138707280158997, "sibling_score": 0.8138707280158997, "answer_score": 0.528489726781845, "sibling_qid": "KOL-2025-11-3883-Q002", "sibling_text": "generator how to take out bottom part of main bearing not underslung type", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Opening, removing and overhauling a main bearing", "cross_family": false }, { "answer_id": "MAIN-BRG-B-001", "score": 0.7528027296066284, "sibling_score": 0.7528027296066284, "answer_score": null, "sibling_qid": "KOC-2025-09-2072-Q007", "sibling_text": "how to remove main bearing in generator", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you open up / remove / overhaul a main-engine main bearing?", "cross_family": false }, { "answer_id": "AE-MB-002", "score": 0.7352205514907837, "sibling_score": 0.7352205514907837, "answer_score": 0.5782922863960266, "sibling_qid": "KOL-2026-02-3911-Q005", "sibling_text": "generator main bearing bottom part how to remove", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Removing the lower shell / bottom half of an AE main bearing", "cross_family": true } ] }, { "qid": "KOL-2026-10-4330-Q001", "text": "Difference between TEV and Automatic expansion v/v ?", "family": "Refrigeration & AC", "subtopic": "TEV / TXV", "tid": "KOL-2026-10-4330", "tray": "new", "candidates": [ { "answer_id": "TEV-TXV-002", "score": 0.47881650924682617, "sibling_score": 0.47881650924682617, "answer_score": null, "sibling_qid": "CHE-2025-08-0421-Q003", "sibling_text": "explain tev working", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "TEV / TXV — purpose, construction, location and working", "cross_family": false }, { "answer_id": "TEV-TXV-001", "score": 0.4687471389770508, "sibling_score": 0.4687471389770508, "answer_score": 0.34988988637924195, "sibling_qid": "MUM-2026-05-3256-Q004", "sibling_text": "tev types of tev", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Types of expansion valve", "cross_family": false }, { "answer_id": "TEV-TXV-003", "score": 0.45979446172714233, "sibling_score": 0.45979446172714233, "answer_score": null, "sibling_qid": "MUM-2026-05-3256-Q005", "sibling_text": "what is externally and internally equalized tev", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Equalizing line — internal vs external equalized TEV", "cross_family": false } ] }, { "qid": "KOL-2026-10-4330-Q002", "text": "Angle encoder ?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Angle Encoder", "tid": "KOL-2026-10-4330", "tray": "review", "candidates": [ { "answer_id": "ANG-ENC-003", "score": 0.8342595100402832, "sibling_score": 0.8342595100402832, "answer_score": 0.48474465012550355, "sibling_qid": "KOC-2022-07-0079-Q023", "sibling_text": "angle encoder working", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Working principle: sensing crank angle, speed and direction", "cross_family": false }, { "answer_id": "ANG-ENC-001", "score": 0.8279860019683838, "sibling_score": 0.8279860019683838, "answer_score": 0.49977218508720395, "sibling_qid": "MUM-2023-11-1066-Q008", "sibling_text": "angle encoder function", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Purpose of the angle encoder on an electronically controlled main engine", "cross_family": true }, { "answer_id": "ETP-344-P03-013", "score": 0.426802521944046, "sibling_score": null, "answer_score": 0.426802521944046, "sibling_qid": "", "sibling_text": "me engine speed tacho sensors how many and why man b w me two redundant tacho systems system a and system b one per ecu control side each system is an angle encoder on the crankshaft fore end the standard arrangement also has a reference sensor on the turning wheel flywheel", "sibling_family": "", "via": "answer_title", "answer_title": "ME engine speed / tacho sensors — how many and why", "cross_family": false } ] }, { "qid": "KOL-2026-10-4330-Q003", "text": "MC engine chain tightening ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Chain & Tensioning", "tid": "KOL-2026-10-4330", "tray": "review", "candidates": [ { "answer_id": "CHAIN-TENS-C-001", "score": 0.8219199180603027, "sibling_score": 0.8219199180603027, "answer_score": 0.4735534906387329, "sibling_qid": "KOC-2022-01-1777-Q002", "sibling_text": "chain tightening mc engine", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main-engine chain drive — how you know it is slack, and how you check and tighten it", "cross_family": false }, { "answer_id": "CHAIN-TENS-A-003", "score": 0.791191041469574, "sibling_score": 0.791191041469574, "answer_score": 0.5611323058605194, "sibling_qid": "KOC-2024-12-1888-Q007", "sibling_text": "mc engine chain tightening procedure", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Chain Tightening Procedure — MC / MC-C / ME", "cross_family": false }, { "answer_id": "CHAIN-TENS-B-002", "score": 0.7437382340431213, "sibling_score": 0.7437382340431213, "answer_score": 0.4525213658809662, "sibling_qid": "KOL-2024-12-3731-Q001", "sibling_text": "chain tightening procedure in mc engine cross about all this chain replacement etc", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Changing a damaged link and renewing the main-engine chain", "cross_family": false } ] }, { "qid": "KOL-2026-10-4330-Q004", "text": "Slugging in refrigeration ?", "family": "Refrigeration & AC", "subtopic": "Reefer Compressor", "tid": "KOL-2026-10-4330", "tray": "new", "candidates": [ { "answer_id": "REF-SCSH-001", "score": 0.5662887692451477, "sibling_score": 0.5662887692451477, "answer_score": 0.39418547749519345, "sibling_qid": "CHE-2026-05-0568-Q004", "sibling_text": "refrigeration what is subcooling", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Subcooling in refrigeration — meaning, purpose, significance and expected values", "cross_family": false }, { "answer_id": "REEF-COMP-004", "score": 0.5642433762550354, "sibling_score": 0.5642433762550354, "answer_score": null, "sibling_qid": "MUM-2026-01-2526-Q004", "sibling_text": "l o charge in reefer", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Charging, replenishing and draining compressor lube oil — including with no charging pump", "cross_family": false }, { "answer_id": "REEF-COMP-010", "score": 0.5638061165809631, "sibling_score": 0.5638061165809631, "answer_score": null, "sibling_qid": "KOC-2026-03-2012-Q002", "sibling_text": "reefer lubrication", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Starting, changing over and lubricating a reefer compressor/plant — after provisions and in normal running", "cross_family": false } ] }, { "qid": "KOL-2026-10-4330-Q005", "text": "Main engine main bearing survey ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Main Bearing", "tid": "KOL-2026-10-4330", "tray": "review", "candidates": [ { "answer_id": "MAIN-BRG-A-001", "score": 0.8522701859474182, "sibling_score": 0.8522701859474182, "answer_score": 0.5480345606803894, "sibling_qid": "KOL-2019-07-3257-Q001", "sibling_text": "main engine main bearing for survey", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How is a main bearing surveyed, inspected or condition-monitored?", "cross_family": false }, { "answer_id": "BEB-A-001", "score": 0.7606993317604065, "sibling_score": 0.7606993317604065, "answer_score": null, "sibling_qid": "KOL-2023-04-3604-Q003", "sibling_text": "main engine bottom end bearing opening up procedure for survey", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Removing, overhauling, inspecting and refitting the bottom end bearing", "cross_family": false }, { "answer_id": "MN-BRG-C-001", "score": 0.7560133337974548, "sibling_score": 0.7560133337974548, "answer_score": null, "sibling_qid": "KOL-2023-10-1758-Q011", "sibling_text": "main bearing and crankpin bearing survey overhauling", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Opening, removing and overhauling a main bearing", "cross_family": false } ] }, { "qid": "KOL-2026-10-4330-Q006", "text": "Rocking test ?", "family": "Drydock & Underwater Surveys", "subtopic": "Crane Rocking / Load Test", "tid": "KOL-2026-10-4330", "tray": "review", "candidates": [ { "answer_id": "CRANE-ROCK-LT-001", "score": 0.7716376781463623, "sibling_score": 0.7716376781463623, "answer_score": 0.37670365422964097, "sibling_qid": "MUM-2026-05-3267-Q009", "sibling_text": "rocking test", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Crane rocking test — what it is, how it is taken, and why", "cross_family": false }, { "answer_id": "CAS-ESTOP-002", "score": 0.2889367237687111, "sibling_score": null, "answer_score": 0.2889367237687111, "sibling_qid": "", "sibling_text": "main engine checks after grounding before turning or a kick", "sibling_family": "", "via": "answer_title", "answer_title": "Main-engine checks after grounding, before turning or a kick", "cross_family": false }, { "answer_id": "CRANE-ROCK-LT-004", "score": 0.2803303122520447, "sibling_score": null, "answer_score": 0.2803303122520447, "sibling_qid": "", "sibling_text": "slew bearing type and toroidal wear behind the rocking racking test common marine deck crane arrangement single row four point contact ball slewing ring inner outer ring one ball row often geared confirm the actual crane from the maker drawing manual carries axial radial and overturning moment loads together the thin ring needs a stiff supporting structure not to distort", "sibling_family": "", "via": "answer_title", "answer_title": "Slew bearing type and toroidal wear behind the rocking/racking test", "cross_family": false } ] }, { "qid": "KOL-2026-10-4330-Q007", "text": "Caustic embrittlement ?", "family": "Boilers - Safety & Survey", "subtopic": "Boiler Chemicals", "tid": "KOL-2026-10-4330", "tray": "review", "candidates": [ { "answer_id": "BLR-CHEM-002", "score": 0.7374182343482971, "sibling_score": 0.7374182343482971, "answer_score": 0.5189707309007644, "sibling_qid": "KOL-2026-02-2040-Q003", "sibling_text": "caustic embrittlement xxx", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "2. Caustic embrittlement", "cross_family": false }, { "answer_id": "BLR-CHEM-005", "score": 0.36469845175743104, "sibling_score": null, "answer_score": 0.36469845175743104, "sibling_qid": "", "sibling_text": "5 boiler and condensate corrosion water chemistry oxygen pitting dissolved o2 localised pits cure deaerate scavenger acidic corrosion mg salt hydrolysis co2 carbonic acid low ph attack", "sibling_family": "", "via": "answer_title", "answer_title": "5. Boiler and condensate corrosion (water chemistry)", "cross_family": false }, { "answer_id": "CFF-P02-006", "score": 0.36119747161865234, "sibling_score": null, "answer_score": 0.36119747161865234, "sibling_qid": "", "sibling_text": "corrosion fatigue combined action cyclic stress corrosive medium seawater synergistic worse than the sum of the two pits act as stress raisers faster initiation corrosion at the crack tip accelerates propagation", "sibling_family": "", "via": "answer_title", "answer_title": "Corrosion fatigue", "cross_family": false } ] }, { "qid": "KOL-2026-10-4331-Q001", "text": "Huddling chamber in boiler safety valve?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "KOL-2026-10-4331", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P01-001", "score": 0.6609570980072021, "sibling_score": 0.6609570980072021, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q011", "sibling_text": "boiler safety valve setting in front of surveyor", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.6595097184181213, "sibling_score": 0.6595097184181213, "answer_score": null, "sibling_qid": "CHE-2026-04-0500-Q005", "sibling_text": "boiler safety valve setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.6551455855369568, "sibling_score": 0.6551455855369568, "answer_score": null, "sibling_qid": "CHE-2026-05-0583-Q002", "sibling_text": "boiler safety valve lifting pressure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOL-2026-10-4331-Q002", "text": "Milling scale?", "family": "Workshop & Welding", "subtopic": "Workshop Machine Tools", "tid": "KOL-2026-10-4331", "tray": "new", "candidates": [ { "answer_id": "MATPROP-A-006", "score": 0.4984247088432312, "sibling_score": 0.4984247088432312, "answer_score": null, "sibling_qid": "CHE-2025-09-0215-Q006", "sibling_text": "explain mill test", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Destructive and material tests", "cross_family": true }, { "answer_id": "MICR-003", "score": 0.4984021782875061, "sibling_score": 0.4984021782875061, "answer_score": 0.4267415225505829, "sibling_qid": "KOL-2024-09-3711-Q010", "sibling_text": "q2 least count of inside micromere how wil u take 150 mm bore liner how maney scale in inside micrometer", "sibling_family": "Gauges & Tools", "via": "sibling", "answer_title": "Cylinder liner calibration with the inside micrometer", "cross_family": true }, { "answer_id": "LATHE-TD-001", "score": 0.47860264778137207, "sibling_score": 0.47860264778137207, "answer_score": null, "sibling_qid": "KOL-2022-01-3512-Q006", "sibling_text": "lathe machine operation", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "The lathe — types, main parts, construction and shipboard use", "cross_family": false } ] }, { "qid": "KOL-2026-10-4331-Q003", "text": "Types of superheated?", "family": "Turbocharger", "subtopic": "TC Construction", "tid": "KOL-2026-10-4331", "tray": "review", "candidates": [ { "answer_id": "SH-332-004", "score": 0.682178795337677, "sibling_score": 0.682178795337677, "answer_score": 0.5242757022380828, "sibling_qid": "KOL-2024-12-4043-Q004", "sibling_text": "types of superheating processes", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Types of superheater and methods of achieving superheating", "cross_family": true }, { "answer_id": "SH-332-003", "score": 0.622440755367279, "sibling_score": 0.622440755367279, "answer_score": 0.506262794137001, "sibling_qid": "KOL-2024-09-1951-Q003", "sibling_text": "superheated steam", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Superheated steam, degree of superheat, and saturated vs superheated", "cross_family": true }, { "answer_id": "REF-CYC-006", "score": 0.5693075656890869, "sibling_score": 0.5693075656890869, "answer_score": null, "sibling_qid": "KOL-2026-09-4290-Q009", "sibling_text": "sub cooling and superheating", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "6. Saturation temperature, subcooling, superheat and dryness fraction", "cross_family": true } ] }, { "qid": "KOL-2026-10-4331-Q004", "text": "Stress in bed plate and engine?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Bedplate / A-Frame", "tid": "KOL-2026-10-4331", "tray": "new", "candidates": [ { "answer_id": "ETP-344-P01-008", "score": 0.6181723475456238, "sibling_score": 0.6181723475456238, "answer_score": null, "sibling_qid": "MUM-2026-06-3538-Q009", "sibling_text": "what are the check and testing done on bed plate while running of an engine", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Verifying power — shop test, test bed, sea trial", "cross_family": false }, { "answer_id": "STRSTR-298-002", "score": 0.5857678651809692, "sibling_score": 0.5857678651809692, "answer_score": null, "sibling_qid": "KOL-2022-01-1654-Q001", "sibling_text": "1 proof stress bed plate for large engine hcv and lcv plash point and fir point tbn and range", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "What is proof stress, and how is it different from yield stress or yield strength?", "cross_family": true }, { "answer_id": "TR-TB-PA-001", "score": 0.584963858127594, "sibling_score": 0.584963858127594, "answer_score": null, "sibling_qid": "KOL-2024-04-3686-Q003", "sibling_text": "how firing forces transmitted tie rods arrangement how fitted how crankshaft rests on bedplate how bed plate girders fitted", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Function of tie rods and the firing-load path", "cross_family": false } ] }, { "qid": "KOL-2026-10-4331-Q005", "text": "Electronic governor in auxillary engine components?", "family": "Automation & Controls", "subtopic": "Governor (Mechanical / Electronic)", "tid": "KOL-2026-10-4331", "tray": "review", "candidates": [ { "answer_id": "GOV-P02-002", "score": 0.7866681218147278, "sibling_score": 0.7866681218147278, "answer_score": 0.6067163825035095, "sibling_qid": "KOC-2024-11-1439-Q010", "sibling_text": "electronic governor parts", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Electronic governor — components & parts", "cross_family": false }, { "answer_id": "GOV-P02-001", "score": 0.7862783670425415, "sibling_score": 0.7862783670425415, "answer_score": 0.5636019706726074, "sibling_qid": "CHE-2026-03-0253-Q004", "sibling_text": "electronic governor working", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Electronic governor — draw, block diagram & working", "cross_family": false }, { "answer_id": "GOV-P02-005", "score": 0.77936851978302, "sibling_score": 0.77936851978302, "answer_score": null, "sibling_qid": "KOL-2026-09-4303-Q005", "sibling_text": "pid control system for an electronic governor of an auxiliary engine", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "PID control, loop stability & detuning", "cross_family": false } ] }, { "qid": "KOL-2026-10-4331-Q006", "text": "How lacquer is formed in liner?", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "KOL-2026-10-4331", "tray": "review", "candidates": [ { "answer_id": "CYL-LINER-P02-007", "score": 0.6517658829689026, "sibling_score": 0.6517658829689026, "answer_score": 0.30204852819442746, "sibling_qid": "KOL-2025-08-2006-Q003", "sibling_text": "how lacquer is form in linear", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L7 · T044-PART_02-G007High", "cross_family": false }, { "answer_id": "LO-TEST-P02-003", "score": 0.5459791421890259, "sibling_score": 0.5459791421890259, "answer_score": null, "sibling_qid": "KOC-2024-10-1869-Q006", "sibling_text": "lacquer formation", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Abnormal LO condition: sump rise, colour, high temperature/pressure, lacquer, deterioration", "cross_family": true }, { "answer_id": "CYL-LINER-P04-006", "score": 0.47011756896972656, "sibling_score": 0.47011756896972656, "answer_score": null, "sibling_qid": "KOL-2019-06-3245-Q006", "sibling_text": "liner manufacturing process material", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Material & manufacturing", "cross_family": false } ] }, { "qid": "KOL-2026-10-4331-Q007", "text": "Why stress on y-axis and why strain on x axis?", "family": "NDT & Material Testing", "subtopic": "Stress / Strain", "tid": "KOL-2026-10-4331", "tray": "review", "candidates": [ { "answer_id": "STRSTR-298-005", "score": 0.7751800417900085, "sibling_score": 0.7751800417900085, "answer_score": 0.570788499712944, "sibling_qid": "KOL-2026-04-2054-Q005", "sibling_text": "stress on y and strain on x axis", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Why is stress plotted on the y-axis and strain on the x-axis?", "cross_family": false }, { "answer_id": "BLR-DRUM-005", "score": 0.5320661664009094, "sibling_score": 0.5320661664009094, "answer_score": null, "sibling_qid": "KOL-2025-07-1813-Q006", "sibling_text": "stress along which axis and stress values", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Boiler manhole-door minor-axis orientation — longitudinal vs transverse stress", "cross_family": true }, { "answer_id": "STRSTR-298-003", "score": 0.5030904412269592, "sibling_score": 0.5030904412269592, "answer_score": null, "sibling_qid": "KOL-2025-03-1801-Q003", "sibling_text": "tensile stress why carried out information we get", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "How is a tensile test carried out, and what do UTM, UTS and the stress-strain curve give you?", "cross_family": false } ] }, { "qid": "KOL-2026-10-4332-Q001", "text": "MIG and TIG ?", "family": "Workshop & Welding", "subtopic": "Plasma / Arc / TIG / MIG", "tid": "KOL-2026-10-4332", "tray": "new", "candidates": [ { "answer_id": "WELD-PATM-003", "score": 0.59217369556427, "sibling_score": 0.59217369556427, "answer_score": 0.31940870732069016, "sibling_qid": "KOL-2026-09-4302-Q004", "sibling_text": "mig advantage over tig", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "TIG welding – process, shielding gas, advantages, uses", "cross_family": false }, { "answer_id": "WELD-PATM-005", "score": 0.5663091540336609, "sibling_score": 0.5663091540336609, "answer_score": 0.4204651206731796, "sibling_qid": "KOL-2018-01-3118-Q005", "sibling_text": "difference between tig mig where are they used", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "TIG vs MIG – differences, uses, advantages", "cross_family": false }, { "answer_id": "WELD-PATM-004", "score": 0.33517821580171586, "sibling_score": null, "answer_score": 0.33517821580171586, "sibling_qid": "", "sibling_text": "mig welding process and applications consumable wire fed continuously electrode and filler in one semi automatic gas shield inert ar he mig on non ferrous active co ar co mag on steel", "sibling_family": "", "via": "answer_title", "answer_title": "MIG welding – process and applications", "cross_family": false } ] }, { "qid": "KOL-2026-10-4332-Q002", "text": "Stellite coat composition ?", "family": "2-Stroke - Exhaust, Valve & Starting Air", "subtopic": "Exhaust Valve", "tid": "KOL-2026-10-4332", "tray": "review", "candidates": [ { "answer_id": "EXHV-P03-006", "score": 0.7847841382026672, "sibling_score": 0.7847841382026672, "answer_score": 0.4500908643007278, "sibling_qid": "KOL-2021-10-1626-Q004", "sibling_text": "stellite compound composition", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve materials — Stellite and Nimonic 80A: composition, use and why", "cross_family": false }, { "answer_id": "COAT-543-004", "score": 0.6530594825744629, "sibling_score": 0.6530594825744629, "answer_score": 0.5587471485137939, "sibling_qid": "KOL-2020-06-1536-Q009", "sibling_text": "stellite coating name the process", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Stellite and nickel coatings — process and purpose", "cross_family": true }, { "answer_id": "SGB-212-002", "score": 0.6222227811813354, "sibling_score": 0.6222227811813354, "answer_score": null, "sibling_qid": "KOL-2017-06-1850-Q003", "sibling_text": "stainless composition", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Stainless steel — composition and the role of Cr, Ni, C", "cross_family": true } ] }, { "qid": "KOL-2026-10-4332-Q003", "text": "Difference between Man and Sulzer Cross head ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Crosshead Bearing", "tid": "KOL-2026-10-4332", "tray": "review", "candidates": [ { "answer_id": "XHD-BRG-B-006", "score": 0.7001557946205139, "sibling_score": 0.7001557946205139, "answer_score": 0.5230652391910553, "sibling_qid": "KOL-2021-11-1642-Q003", "sibling_text": "difference between cross head bearing of man and sulzer", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "MAN B&W versus Sulzer / Wärtsilä crosshead bearing and lubrication", "cross_family": false }, { "answer_id": "CXH-BRG-FINAL-1-005", "score": 0.6627899408340454, "sibling_score": 0.6627899408340454, "answer_score": 0.4632665306329727, "sibling_qid": "KOL-2018-10-1426-Q002", "sibling_text": "cross head lubrication diffrence between sulzer and man b w", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead lubrication: why it is uniquely difficult, MAN vs Sulzer, improvements", "cross_family": false }, { "answer_id": "XHD-BRG-C-004", "score": 0.646956205368042, "sibling_score": 0.646956205368042, "answer_score": 0.4074434980750084, "sibling_qid": "KOL-2025-07-1993-Q001", "sibling_text": "contructional and lubrication process difference between man and sulzer crosshead bearing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "D. Crosshead and guide-shoe lubrication: oil path, the no-load-reversal film problem, MAN vs Sulzer", "cross_family": false } ] }, { "qid": "KOL-2026-10-4332-Q004", "text": "Fuel pump timing check AE ?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Cam & Lead", "tid": "KOL-2026-10-4332", "tray": "review", "candidates": [ { "answer_id": "FCL-P03-001", "score": 0.8266016840934753, "sibling_score": 0.8266016840934753, "answer_score": 0.6038087785243987, "sibling_qid": "CHE-2026-08-3875-Q003", "sibling_text": "ae fuel pump timing check", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "AE / auxiliary-engine fuel pump timing check and adjustment", "cross_family": false }, { "answer_id": "FCL-P03-003", "score": 0.7853770852088928, "sibling_score": 0.7853770852088928, "answer_score": null, "sibling_qid": "CHE-2026-05-0647-Q006", "sibling_text": "ae fuel pump timing check no marking in fly wheel", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Sulzer / RTA fuel pump timing and lead", "cross_family": false }, { "answer_id": "FCL-P02-001", "score": 0.7359573245048523, "sibling_score": 0.7359573245048523, "answer_score": 0.5453598082065582, "sibling_qid": "KOC-2022-01-1778-Q003", "sibling_text": "fuel pump timing checks", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel pump / injection timing check, setting, and adjustment", "cross_family": false } ] }, { "qid": "KOL-2026-10-4332-Q005", "text": "Advantages of chain drive over gear drive ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Chain & Tensioning", "tid": "KOL-2026-10-4332", "tray": "review", "candidates": [ { "answer_id": "CHAIN-TENS-B-004", "score": 0.806546151638031, "sibling_score": 0.806546151638031, "answer_score": 0.5542103946208954, "sibling_qid": "KOL-2021-08-1612-Q001", "sibling_text": "advantage chain drive over gear drive", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Chain drive versus gear drive for the camshaft", "cross_family": false }, { "answer_id": "CHAIN-TENS-B-003", "score": 0.6574917435646057, "sibling_score": 0.6574917435646057, "answer_score": 0.4967072695493698, "sibling_qid": "KOL-2018-01-1340-Q004", "sibling_text": "advantages of chain and sprocket over gears i gave him a few points but he said u r missing something very important", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Chain-drive arrangement — sprockets, idlers, links and chain case", "cross_family": false }, { "answer_id": "CHAIN-TENS-B-002", "score": 0.6234793066978455, "sibling_score": 0.6234793066978455, "answer_score": null, "sibling_qid": "MUM-2025-05-1118-Q002", "sibling_text": "parts of chain link of chain drive", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Changing a damaged link and renewing the main-engine chain", "cross_family": false } ] }, { "qid": "KOL-2026-10-4332-Q006", "text": "Refrigerant critical temperature ?", "family": "Refrigeration & AC", "subtopic": "Critical Temp", "tid": "KOL-2026-10-4332", "tray": "review", "candidates": [ { "answer_id": "CTMP-575-001", "score": 0.8364940285682678, "sibling_score": 0.8364940285682678, "answer_score": 0.6251659631729126, "sibling_qid": "KOL-2025-11-3878-Q004", "sibling_text": "refrigerant critical temp importance of the critical temp", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "What is the critical temperature of a refrigerant, and why is it important in refrigeration?", "cross_family": false }, { "answer_id": "CTMP-575-002", "score": 0.699864387512207, "sibling_score": 0.699864387512207, "answer_score": 0.5970528423786163, "sibling_qid": "KOC-2026-08-2107-Q003", "sibling_text": "critical temp and pressure", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Explain critical pressure, critical temperature and vapour pressure for a refrigerant.", "cross_family": false }, { "answer_id": "HT-TCS-B-001", "score": 0.6969119310379028, "sibling_score": 0.6969119310379028, "answer_score": null, "sibling_qid": "KOC-2025-07-1926-Q006", "sibling_text": "what is critical temperature", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Tempering — purpose, classes and where it is used on board", "cross_family": true } ] }, { "qid": "KOL-2026-10-4332-Q007", "text": "How to repair liner crack shore ?", "family": "Workshop & Welding", "subtopic": "Metal Locking", "tid": "KOL-2026-10-4332", "tray": "review", "candidates": [ { "answer_id": "METAL-LOCK-003", "score": 0.7534803748130798, "sibling_score": 0.7534803748130798, "answer_score": 0.4386876761913299, "sibling_qid": "KOL-2018-08-3184-Q001", "sibling_text": "liner cracked how to repair", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Cold repair of cracked cast-iron parts: liner, pump/valve cage, loose bearing seat", "cross_family": false }, { "answer_id": "CYL-LINER-P03-001", "score": 0.6993945240974426, "sibling_score": 0.6993945240974426, "answer_score": null, "sibling_qid": "KOL-2024-06-3701-Q003", "sibling_text": "how to repair crack in liner", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Cracked cylinder liner — can it be repaired, and what are the options?", "cross_family": true }, { "answer_id": "CYL-LINER-P03-004", "score": 0.6518387794494629, "sibling_score": 0.6518387794494629, "answer_score": 0.46369524896144865, "sibling_qid": "KOL-2026-09-4293-Q001", "sibling_text": "liner cracked can be repaired on ship", "sibling_family": "2-Stroke - Liner & Piston Overhaul", "via": "sibling", "answer_title": "Cracked or leaking liner at sea, no spare — isolating the unit and reaching port", "cross_family": true } ] }, { "qid": "KOL-2026-10-4332-Q008", "text": "Boiler internal survey ?", "family": "Boilers - Safety & Survey", "subtopic": "", "tid": "KOL-2026-10-4332", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P01-001", "score": 0.7518449425697327, "sibling_score": 0.7518449425697327, "answer_score": 0.4634678691625595, "sibling_qid": "KOL-2021-07-1602-Q009", "sibling_text": "survey preparation of boiler", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-008", "score": 0.7426721453666687, "sibling_score": 0.7426721453666687, "answer_score": null, "sibling_qid": "KOL-2017-01-1841-Q004", "sibling_text": "boiler preparation for survey", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "BLR-OPS-005", "score": 0.4785448521375656, "sibling_score": null, "answer_score": 0.4785448521375656, "sibling_qid": "", "sibling_text": "raising steam after a boiler survey and guiding the fourth engineer to fire it from cold confirm the box up manhole handhole doors made up with new joints correctly tightened remove every survey blank plug and safety valve gag refit and line up all mountings", "sibling_family": "", "via": "answer_title", "answer_title": "Raising steam after a boiler survey, and guiding the Fourth Engineer to fire it from cold.", "cross_family": false } ] }, { "qid": "KOL-2026-10-4332-Q009", "text": "Defects in bearing ?bedding thick shell bearing ?Decider Ques Srinivasan", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Main Bearing", "tid": "KOL-2026-10-4332", "tray": "review", "candidates": [ { "answer_id": "WMAT-170-007", "score": 0.7418096661567688, "sibling_score": 0.7418096661567688, "answer_score": null, "sibling_qid": "KOL-2026-07-4272-Q006", "sibling_text": "types of bearing defects decider question by srinivasan", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Tin-oxide corrosion of white metal and its prevention", "cross_family": false }, { "answer_id": "BRG-NOM-005", "score": 0.6599854826927185, "sibling_score": 0.6599854826927185, "answer_score": null, "sibling_qid": "KOL-2026-02-3917-Q007", "sibling_text": "thick shell bearing new bearing installed but its not fitting reasons and how will you rectify", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bush, Insert, End-Loaded and Undersize Bearings — and Ordering Data", "cross_family": false }, { "answer_id": "WMAT-170-008", "score": 0.6481342911720276, "sibling_score": 0.6481342911720276, "answer_score": 0.5309531092643738, "sibling_qid": "KOL-2025-07-3821-Q006", "sibling_text": "in main bearing shell there is dark grey material formed and it is also swelled what is it", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bearing defects and damage indications, and reading them", "cross_family": false } ] }, { "qid": "KOL-2026-10-4332-Q010", "text": "Boiler water test? Reason chloride excess ? Decider Ques Srinivasan", "family": "Boilers - Safety & Survey", "subtopic": "Water Test (Chloride / pH / Phosphate)", "tid": "KOL-2026-10-4332", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-002", "score": 0.7958634495735168, "sibling_score": 0.7958634495735168, "answer_score": 0.5767740905284882, "sibling_qid": "CHE-2025-08-0174-Q007", "sibling_text": "boiler test and chloride value high how", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What does high boiler-water chloride, salinity or TDS indicate, and what action is required?", "cross_family": false }, { "answer_id": "BWTEST-A-003", "score": 0.7765475511550903, "sibling_score": 0.7765475511550903, "answer_score": null, "sibling_qid": "KOL-2025-03-3749-Q002", "sibling_text": "boiler water sample and testing and chloride level actions", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "How should boiler-water samples be taken and checked before testing?", "cross_family": false }, { "answer_id": "BLR-CHEM-008", "score": 0.5180992603302002, "sibling_score": null, "answer_score": 0.5180992603302002, "sibling_qid": "", "sibling_text": "8 boiler water contaminants hardness scale and sludge contaminants ca mg hardness carbonate bicarbonate sulphate chloride o2 co2 oil silica seawater chloride sources poor makeup shore water evaporator carryover condenser cooler leaks oily returns", "sibling_family": "", "via": "answer_title", "answer_title": "8. Boiler-water contaminants, hardness, scale and sludge", "cross_family": false } ] }, { "qid": "KOL-2026-10-4333-Q001", "text": "Intact Stability Criteria ?", "family": "Ship Construction & Stability", "subtopic": "Static / Dynamic Stability/damage stability", "tid": "KOL-2026-10-4333", "tray": "review", "candidates": [ { "answer_id": "STAB-SD-A-001", "score": 0.8347007036209106, "sibling_score": 0.8347007036209106, "answer_score": 0.44395216703414914, "sibling_qid": "KOL-2026-07-4264-Q004", "sibling_text": "intact stability criteria", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Intact stability and the 2008 IS Code criteria", "cross_family": false }, { "answer_id": "SCS-DEF-001", "score": 0.46192221343517303, "sibling_score": null, "answer_score": 0.46192221343517303, "sibling_qid": "", "sibling_text": "1 what is intact stability stability of theundamaged watertightship the opposite case to damage stability which assumes flooding ability to return to the initial equilibrium upright after a heeling force is removed", "sibling_family": "", "via": "answer_title", "answer_title": "1. What is intact stability?", "cross_family": false }, { "answer_id": "DAM-STAB-P03-001", "score": 0.4411303371191025, "sibling_score": null, "answer_score": 0.4411303371191025, "sibling_qid": "", "sibling_text": "intact static dynamic and damage stability difference and criteria intact stability means the ship is undamaged damage stability means one or more spaces are assumed flooded and the residual condition is assessed static stability is the righting lever gz at a stated heel angle dynamic stability is the area under the gz curve it represents work or energy to heel the ship through an angle", "sibling_family": "", "via": "answer_title", "answer_title": "Intact, static, dynamic and damage stability: difference and criteria", "cross_family": false } ] }, { "qid": "KOL-2026-10-4333-Q002", "text": "Observation and Non Conformity ?", "family": "ISM Code", "subtopic": "Major / Minor NC", "tid": "KOL-2026-10-4333", "tray": "review", "candidates": [ { "answer_id": "ISMNC-004", "score": 0.7953400015830994, "sibling_score": 0.7953400015830994, "answer_score": 0.44404123425483705, "sibling_qid": "KOL-2024-12-0900-Q005", "sibling_text": "observation and non conformity", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Differentiate between an observation and a non-conformity under the ISM Code.", "cross_family": false }, { "answer_id": "ISMNC-001", "score": 0.6638938784599304, "sibling_score": 0.6638938784599304, "answer_score": 0.4406815558671951, "sibling_qid": "MUM-2026-05-3084-Q008", "sibling_text": "non conformity", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a non-conformity under the ISM Code? Give the definition.", "cross_family": false }, { "answer_id": "ISMNC-003", "score": 0.6513534188270569, "sibling_score": 0.6513534188270569, "answer_score": null, "sibling_qid": "MUM-2026-06-3360-Q003", "sibling_text": "non conformity major conformity", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Differentiate between a major non-conformity and a non-conformity under the ISM Code.", "cross_family": false } ] }, { "qid": "KOL-2026-10-4333-Q003", "text": "Hyper mist regulations ?", "family": "SOLAS - Fire Safety", "subtopic": "Sprinkler / Water Mist / Hi-Fog", "tid": "KOL-2026-10-4333", "tray": "review", "candidates": [ { "answer_id": "FIRE-P02-01", "score": 0.7768999934196472, "sibling_score": 0.7768999934196472, "answer_score": null, "sibling_qid": "KOC-2025-10-0681-Q004", "sibling_text": "hyper mist regulations", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist — SOLAS/FSS basis and ECR/machinery-space arrangement", "cross_family": false }, { "answer_id": "FIRE-P02-02", "score": 0.36836880147457124, "sibling_score": null, "answer_score": 0.36836880147457124, "sibling_qid": "", "sibling_text": "hypermist routine testing alarms and 2 e maintenance statutory anchor solas ii 2 reg 14 operational readiness and maintenance to the approved plan under reg 14 2 2 current imo maintenance guideline msc 1 circ 1432 as amended by msc 1 circ 1516 the framework for fss code fixed ff systems", "sibling_family": "", "via": "answer_title", "answer_title": "Hypermist — routine testing, alarms and 2/E maintenance", "cross_family": false }, { "answer_id": "FIRE-P02-04", "score": 0.3682136684656143, "sibling_score": null, "answer_score": 0.3682136684656143, "sibling_qid": "", "sibling_text": "hypermist vs sprinkler and co comparison and coexistence sprinkler fss ch 8 accommodation service spaces and control stations low pressure large droplets wet and cool single head activation on heat water mist fss ch 7 msc 1 circ 1387 for local application machinery space local application high pressure fine droplets evaporative cooling and steam envelope oxygen displacement", "sibling_family": "", "via": "answer_title", "answer_title": "Hypermist vs sprinkler and CO₂ — comparison and coexistence", "cross_family": false } ] }, { "qid": "KOL-2026-10-4333-Q004", "text": "Underwater Radiated Noise regulation ?", "family": "Drydock & Underwater Surveys", "subtopic": "", "tid": "KOL-2026-10-4333", "tray": "new", "candidates": [ { "answer_id": "NOISE-CODE-001", "score": 0.5865241289138794, "sibling_score": 0.5865241289138794, "answer_score": 0.45534294247627255, "sibling_qid": "KOC-2023-07-0203-Q015", "sibling_text": "consitions for carrying out noise measurement", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is the Noise Code — under which convention, and what does it cover?", "cross_family": true }, { "answer_id": "NOISE-CODE-005", "score": 0.5839159488677979, "sibling_score": 0.5839159488677979, "answer_score": null, "sibling_qid": "KOC-2024-01-0288-Q006", "sibling_text": "noise code who measure noise level are you authorised where to find noise level of ship in detail what are the instruments", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What instruments, weighting filters and authority requirements go with Noise Code measurements?", "cross_family": true }, { "answer_id": "EECS-019", "score": 0.5749738216400146, "sibling_score": 0.5749738216400146, "answer_score": 0.4658949255943298, "sibling_qid": "KOC-2024-01-0291-Q005", "sibling_text": "explain cii eexi bwms d2 biofouling under water noise", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "19. CII and EEXI together with BWMS D-2, biofouling and underwater radiated noise", "cross_family": true } ] }, { "qid": "KOL-2026-10-4334-Q001", "text": "Status of oral and written then started viva?", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOL-2026-10-4334", "tray": "new", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.6453667879104614, "sibling_score": 0.6453667879104614, "answer_score": null, "sibling_qid": "MUM-2026-03-1294-Q001", "sibling_text": "status of writtens and orals", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": false }, { "answer_id": "DUS-P1-02", "score": 0.4453275799751282, "sibling_score": 0.4453275799751282, "answer_score": null, "sibling_qid": "KOL-2025-08-3851-Q006", "sibling_text": "drydock plans rudder checks cross questions what about other written oral exams status told waiting for naval written result to come all other paper cleared", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Plans, drawings and special tools kept ready for drydock — engine-department view", "cross_family": true }, { "answer_id": "ACCT-583-A-001", "score": 0.3990026116371155, "sibling_score": 0.3990026116371155, "answer_score": null, "sibling_qid": "MUM-2024-10-2246-Q006", "sibling_text": "boiler accumulation test passes done with orals", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Explain the boiler accumulation pressure test — what it is, its purpose, and how it is carried out (including when and at what interval)", "cross_family": true } ] }, { "qid": "KOL-2026-10-4334-Q002", "text": "Viscotherm working ?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Heater & Viscosity", "tid": "KOL-2026-10-4334", "tray": "review", "candidates": [ { "answer_id": "FHV-001", "score": 0.730837881565094, "sibling_score": 0.730837881565094, "answer_score": 0.4532429218292236, "sibling_qid": "KOC-2026-08-2155-Q009", "sibling_text": "viscotherm working", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "01. Viscotherm / viscometer / viscosity controller", "cross_family": false }, { "answer_id": "FHV-003", "score": 0.6101646423339844, "sibling_score": 0.6101646423339844, "answer_score": 0.4198457032442093, "sibling_qid": "KOC-2022-01-1774-Q008", "sibling_text": "how to set correct temperature to maintain viscosity if viscotherm not working", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "03. Viscotherm failed or heater cannot raise temperature", "cross_family": false }, { "answer_id": "FHV-002", "score": 0.42650715112686155, "sibling_score": null, "answer_score": 0.42650715112686155, "sibling_qid": "", "sibling_text": "02 viscotherm overhaul checks and procedure permit to work first isolate fuel and steam electrical drain cool tag out hot oil and live heating supply capillary type clean the fine capillary bore carbon lacquer reads high and falsifies control and service the constant flow gear pump", "sibling_family": "", "via": "answer_title", "answer_title": "02. Viscotherm overhaul — checks and procedure", "cross_family": false } ] }, { "qid": "KOL-2026-10-4334-Q003", "text": "TIG welding(temperature, gas) ?", "family": "Workshop & Welding", "subtopic": "Plasma / Arc / TIG / MIG", "tid": "KOL-2026-10-4334", "tray": "review", "candidates": [ { "answer_id": "WELD-PATM-003", "score": 0.7021676898002625, "sibling_score": 0.7021676898002625, "answer_score": 0.5098603904247284, "sibling_qid": "KOL-2024-02-3671-Q003", "sibling_text": "tig welding composition of inert gas why co2 not use in inert gas", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "TIG welding – process, shielding gas, advantages, uses", "cross_family": false }, { "answer_id": "WELD-PATM-005", "score": 0.6457098126411438, "sibling_score": 0.6457098126411438, "answer_score": null, "sibling_qid": "KOL-2021-03-3383-Q003", "sibling_text": "tig welding what is difference between mig and tig is it expensive where it is used", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "TIG vs MIG – differences, uses, advantages", "cross_family": false }, { "answer_id": "WELD-A-004", "score": 0.49750826656818387, "sibling_score": null, "answer_score": 0.49750826656818387, "sibling_qid": "", "sibling_text": "oxy acetylene gas welding flame types and gas composition neutral flame 1 1 oxygen acetylene by volume supplied from the cylinders flame temperature 3 100 3 200 c representative sources span 3 100 3 300 three flame types by ratio neutral most steel oxidising excess o brass bronze hotter shorter carburising reducing excess c h hard facing shows an acetylene feather", "sibling_family": "", "via": "answer_title", "answer_title": "Oxy-acetylene gas welding — flame types and gas composition", "cross_family": false } ] }, { "qid": "KOL-2026-10-4334-Q004", "text": "How to weld aluminium with steel ?", "family": "Workshop & Welding", "subtopic": "Welding / NDT / Materials", "tid": "KOL-2026-10-4334", "tray": "review", "candidates": [ { "answer_id": "WELD-B-004", "score": 0.8040279746055603, "sibling_score": 0.8040279746055603, "answer_score": 0.5959225803613662, "sibling_qid": "KOL-2025-07-3831-Q003", "sibling_text": "aluminium welding with steel", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Joining dissimilar metals — aluminium to steel, and explosive welding", "cross_family": false }, { "answer_id": "WELD-PATM-007", "score": 0.7457833886146545, "sibling_score": 0.7457833886146545, "answer_score": null, "sibling_qid": "KOL-2021-07-3418-Q002", "sibling_text": "what is cladding plasma welding and how steel is joint to aluminium", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Plasma spraying / coating / cladding", "cross_family": false }, { "answer_id": "WELD-PATM-003", "score": 0.742792546749115, "sibling_score": 0.742792546749115, "answer_score": null, "sibling_qid": "KOL-2018-05-3150-Q001", "sibling_text": "how do you weld steel with aluminium for superstructure what filler metal used for tig in this case", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "TIG welding – process, shielding gas, advantages, uses", "cross_family": false } ] }, { "qid": "KOL-2026-10-4334-Q005", "text": "CPP propeller ?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Performance Curve", "tid": "KOL-2026-10-4334", "tray": "new", "candidates": [ { "answer_id": "SHAFT-CPP-003", "score": 0.6467674970626831, "sibling_score": 0.6467674970626831, "answer_score": null, "sibling_qid": "MUM-2026-01-1243-Q004", "sibling_text": "cpp propeller full construction and working principle", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "3. CPP — working, construction, oil channel, feedback & emergency", "cross_family": true }, { "answer_id": "PERF-CRV-001", "score": 0.5872597098350525, "sibling_score": 0.5872597098350525, "answer_score": null, "sibling_qid": "CHE-2026-09-3920-Q006", "sibling_text": "propeller draw", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Propeller curve — what it is, use and margin", "cross_family": false }, { "answer_id": "SHAFT-CPP-005", "score": 0.5720711946487427, "sibling_score": 0.5720711946487427, "answer_score": 0.4281763255596161, "sibling_qid": "KOL-2019-02-3214-Q006", "sibling_text": "propeller latest modifications", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "5. Propeller types, design criteria & latest developments", "cross_family": true } ] }, { "qid": "KOL-2026-10-4334-Q006", "text": "Stack tube and plain tube ?", "family": "Boilers - Construction & Components", "subtopic": "Boiler Tubes", "tid": "KOL-2026-10-4334", "tray": "new", "candidates": [ { "answer_id": "BLR-TUBE-P01-002", "score": 0.5510820150375366, "sibling_score": 0.5510820150375366, "answer_score": null, "sibling_qid": "KOL-2025-07-1812-Q005", "sibling_text": "difference between stay tube and plain tube", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "03. Types, functions and arrangement of boiler tubes", "cross_family": false }, { "answer_id": "SH-332-002", "score": 0.5103082656860352, "sibling_score": 0.5103082656860352, "answer_score": null, "sibling_qid": "MUM-2024-07-0960-Q007", "sibling_text": "sh tubes expansion arrangement", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Where superheater tubes are fitted; attachment, support and expansion", "cross_family": false }, { "answer_id": "BLR-TUBE-P02-003", "score": 0.4935089945793152, "sibling_score": 0.4935089945793152, "answer_score": null, "sibling_qid": "KOL-2024-02-3672-Q002", "sibling_text": "boiler tube requirement dimensions procedure for tube tube renewal fitting of tubes how strength of tubes and tubestack is achieved", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Repairing, removing and renewing a boiler tube; Class formalities", "cross_family": false } ] }, { "qid": "KOL-2026-10-4334-Q007", "text": "Alignment of propeller shaft to intermediate shaft ?", "family": "Drydock & Underwater Surveys", "subtopic": "Shaft Alignment", "tid": "KOL-2026-10-4334", "tray": "review", "candidates": [ { "answer_id": "INT-SHAFT-001", "score": 0.8393570780754089, "sibling_score": 0.8393570780754089, "answer_score": 0.6086501747369766, "sibling_qid": "MUM-2026-09-3862-Q004", "sibling_text": "shaft alignment intermediate crankshaft propeller shaft", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "1. Connecting and aligning the intermediate shaft", "cross_family": false }, { "answer_id": "SHAFT-ALN-001", "score": 0.7722745537757874, "sibling_score": 0.7722745537757874, "answer_score": 0.5127834975719452, "sibling_qid": "KOC-2025-05-2063-Q004", "sibling_text": "what type alignment used for propeller shaft", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Shaft alignment — methods and procedure", "cross_family": false }, { "answer_id": "SHAFT-ALN-004", "score": 0.7133477330207825, "sibling_score": 0.7133477330207825, "answer_score": null, "sibling_qid": "KOL-2025-03-3750-Q006", "sibling_text": "bedding of propeller material of propeller shaft what to do if misalignment", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Misalignment findings, propeller bedding and corrective action", "cross_family": false } ] }, { "qid": "KOL-2026-10-4334-Q008", "text": "Difference between sulzer and man b&w liner construction ?", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "KOL-2026-10-4334", "tray": "new", "candidates": [ { "answer_id": "FCL-P03-003", "score": 0.5846883654594421, "sibling_score": 0.5846883654594421, "answer_score": null, "sibling_qid": "MUM-2026-06-3357-Q002", "sibling_text": "sulzer man bw fuel pumps construction and operational difference", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Sulzer / RTA fuel pump timing and lead", "cross_family": false }, { "answer_id": "CXH-BRG-FINAL-1-005", "score": 0.5309708118438721, "sibling_score": 0.5309708118438721, "answer_score": null, "sibling_qid": "KOL-2018-10-1426-Q002", "sibling_text": "cross head lubrication diffrence between sulzer and man b w", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead lubrication: why it is uniquely difficult, MAN vs Sulzer, improvements", "cross_family": true }, { "answer_id": "XHD-BRG-B-006", "score": 0.5226467847824097, "sibling_score": 0.5226467847824097, "answer_score": 0.4639473021030426, "sibling_qid": "KOL-2022-02-1662-Q004", "sibling_text": "crosshead bearing material type of lubrication difference between man sulzer", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "MAN B&W versus Sulzer / Wärtsilä crosshead bearing and lubrication", "cross_family": true } ] }, { "qid": "KOL-2026-10-4334-Q009", "text": "Propeller shaft’s MPT test ?", "family": "NDT & Material Testing", "subtopic": "NDT Methods (MPI/DPT/UT/RT)", "tid": "KOL-2026-10-4334", "tray": "review", "candidates": [ { "answer_id": "NDT-METH-P02-001", "score": 0.750098705291748, "sibling_score": 0.750098705291748, "answer_score": null, "sibling_qid": "KOL-2022-07-1697-Q004", "sibling_text": "ndt test on propeller shaft how mpt done in details", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "1. Magnetic Particle Inspection (MPI / MPT)", "cross_family": false }, { "answer_id": "STERN-TUBE-TAIL-SHAFT-001", "score": 0.6672273278236389, "sibling_score": 0.6672273278236389, "answer_score": 0.488394683599472, "sibling_qid": "KOL-2026-01-3901-Q002", "sibling_text": "test to be done on taper portion of the propeller shaft after propeller is dismounted", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "", "cross_family": true }, { "answer_id": "NDT-METH-P01-002", "score": 0.6178442239761353, "sibling_score": 0.6178442239761353, "answer_score": null, "sibling_qid": "KOL-2023-03-3596-Q003", "sibling_text": "magnetic particle testing explain how to test mpt on tail shaft what s the difference between dpt and mpt", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Dye penetrant test (DPT): principle, procedure, penetrant/developer properties, safety", "cross_family": false } ] }, { "qid": "KOL-2026-10-4334-Q010", "text": "Main engine spare piston overhauling ?", "family": "2-Stroke - Components (Other)", "subtopic": "Piston (Crown/Skirt/Inspection)", "tid": "KOL-2026-10-4334", "tray": "review", "candidates": [ { "answer_id": "PIST-CSI-C-003", "score": 0.7374934554100037, "sibling_score": 0.7374934554100037, "answer_score": null, "sibling_qid": "KOL-2020-03-3337-Q004", "sibling_text": "piston overhauling complete", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston removal, lifting precautions and overhaul / decarbonising", "cross_family": false }, { "answer_id": "PIST-CSI-C-002", "score": 0.728670060634613, "sibling_score": 0.728670060634613, "answer_score": null, "sibling_qid": "KOL-2021-07-3422-Q003", "sibling_text": "main engine piston overhauling and pressure testing procedure", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston pressure / hydraulic leak testing after overhaul", "cross_family": false }, { "answer_id": "PIST-CSI-C-001", "score": 0.7172062993049622, "sibling_score": 0.7172062993049622, "answer_score": null, "sibling_qid": "KOL-2025-07-1812-Q011", "sibling_text": "piston is wear down your plan to recondition it onboard as 2e", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston crown damage — pitting, burning, cracks and reconditioning", "cross_family": false } ] }, { "qid": "KOL-2026-10-4335-Q001", "text": "Commutation ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Thyristor / SCR", "tid": "KOL-2026-10-4335", "tray": "review", "candidates": [ { "answer_id": "COMM-DC-001", "score": 0.6617425680160522, "sibling_score": 0.6617425680160522, "answer_score": null, "sibling_qid": "MUM-2026-06-3613-Q003", "sibling_text": "commutators", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What is a commutator, where is it used, and its purpose in a DC machine?", "cross_family": true }, { "answer_id": "DCMOT-CMU-B-002", "score": 0.6516134142875671, "sibling_score": 0.6516134142875671, "answer_score": null, "sibling_qid": "KOL-2025-08-2829-Q005", "sibling_text": "commutator", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "The commutator — function, construction, purpose", "cross_family": true }, { "answer_id": "COMM-DC-003", "score": 0.6262133121490479, "sibling_score": 0.6262133121490479, "answer_score": null, "sibling_qid": "MUM-2026-05-3191-Q002", "sibling_text": "commutator construction", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Describe the construction of a commutator.", "cross_family": true } ] }, { "qid": "KOL-2026-10-4335-Q002", "text": "Interpoles ?", "family": "Electrical - Motors & Starters", "subtopic": "DC Motor / Commutator", "tid": "KOL-2026-10-4335", "tray": "review", "candidates": [ { "answer_id": "DCMOT-CMU-B-003", "score": 0.7832894921302795, "sibling_score": 0.7832894921302795, "answer_score": 0.30430246591567994, "sibling_qid": "KOC-2024-12-1456-Q002", "sibling_text": "interpol", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Interpoles (commutating poles) & 'magnetic locking'", "cross_family": false }, { "answer_id": "AR-263-004", "score": 0.7764269113540649, "sibling_score": 0.7764269113540649, "answer_score": 0.2816896006464958, "sibling_qid": "KOC-2025-12-1678-Q007", "sibling_text": "interpoles", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "What are interpoles / compensating windings, and how do they help?", "cross_family": true }, { "answer_id": "SIMP-RULE-002", "score": 0.29794388711452485, "sibling_score": null, "answer_score": 0.29794388711452485, "sibling_qid": "", "sibling_text": "what assumptions are used in simpson s first and second rules curve between ordinates is assumed to be a polynomial integrated exactly first rule second degree parabola y a bx cx squared even spaces odd ordinates", "sibling_family": "", "via": "answer_title", "answer_title": "What assumptions are used in Simpson's first and second rules?", "cross_family": false } ] }, { "qid": "KOL-2026-10-4335-Q003", "text": "Air Horn Working ?", "family": "Auxiliary Equipment", "subtopic": "air horn", "tid": "KOL-2026-10-4335", "tray": "new", "candidates": [ { "answer_id": "VENT-HD-004", "score": 0.5733217597007751, "sibling_score": 0.5733217597007751, "answer_score": null, "sibling_qid": "KOC-2025-12-1086-Q002", "sibling_text": "tank air vent working i explained ball type air vent", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Ball-float type tank air vent head — construction and working", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.5612907409667969, "sibling_score": 0.5612907409667969, "answer_score": null, "sibling_qid": "KOL-2018-01-1345-Q001", "sibling_text": "exhaust valve working", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": true }, { "answer_id": "AIR-DIST-001", "score": 0.5599654316902161, "sibling_score": 0.5599654316902161, "answer_score": null, "sibling_qid": "KOL-2017-10-1329-Q001", "sibling_text": "air distributor working air pressure and associated all solenoid vv and full operation", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Air distributor — construction, types and working", "cross_family": true } ] }, { "qid": "KOL-2026-10-4335-Q004", "text": "Types of Cable ?", "family": "Turbocharger", "subtopic": "TC Construction", "tid": "KOL-2026-10-4335", "tray": "review", "candidates": [ { "answer_id": "CBL-INS-B-003", "score": 0.7565414905548096, "sibling_score": 0.7565414905548096, "answer_score": 0.5315985679626465, "sibling_qid": "MUM-2025-08-1629-Q005", "sibling_text": "types of cable", "sibling_family": "", "via": "sibling", "answer_title": "Types of cables used on board and their purposes", "cross_family": false }, { "answer_id": "CBL-INS-B-002", "score": 0.7375385165214539, "sibling_score": 0.7375385165214539, "answer_score": 0.5011764883995056, "sibling_qid": "KOC-2023-11-1296-Q010", "sibling_text": "types cables layers of cables", "sibling_family": "", "via": "sibling", "answer_title": "Layers and construction of a shipboard cable", "cross_family": false }, { "answer_id": "CABLE-INSUL-D-002", "score": 0.4828584313392639, "sibling_score": null, "answer_score": 0.4828584313392639, "sibling_qid": "", "sibling_text": "armouring sheathing and flame retardant frls cable three layers three roles insulation withstands voltage sheath protects the whole cable armour mechanical protection plus screen earth path sheath purpose protect the cores and insulation from oil water abrasion uv and mechanical damage and carry the flame retardant low smoke property marine sheath shf1 halogen free fr thermoplastic shf2 halogen fr", "sibling_family": "", "via": "answer_title", "answer_title": "Armouring, sheathing and flame-retardant / FRLS cable", "cross_family": false } ] }, { "qid": "KOL-2026-10-4335-Q005", "text": "Alternator Maintenance ?", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator Maintenance", "tid": "KOL-2026-10-4335", "tray": "review", "candidates": [ { "answer_id": "ALT-MAINT-A-001", "score": 0.8497310280799866, "sibling_score": 0.8497310280799866, "answer_score": 0.5721646338701248, "sibling_qid": "KOL-2023-05-2659-Q003", "sibling_text": "alternator routines maintenance", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Routine maintenance & care of a ship’s alternator", "cross_family": false }, { "answer_id": "ALT-MTN-B-001", "score": 0.649583300948143, "sibling_score": null, "answer_score": 0.649583300948143, "sibling_qid": "", "sibling_text": "routine onboard alternator maintenance checks clean air path dry low pressure air blow through cooler and filters clear keep winding temperature in band insulation resistance to earth on a megger trended over time investigate a falling trend do not wait for the alarm", "sibling_family": "", "via": "answer_title", "answer_title": "Routine onboard alternator maintenance checks", "cross_family": false }, { "answer_id": "BL-ALT-C-004", "score": 0.5878115862607955, "sibling_score": null, "answer_score": 0.5878115862607955, "sibling_qid": "", "sibling_text": "brushless alternator excitation maintenance ir test megger main stator main field and exciter windings trend it maintain space heaters test before re energising after a standstill rotating rectifier brushless specific test diodes for open short check the surge suppressor varistor over voltage protection a failed diode unstable or lost output", "sibling_family": "", "via": "answer_title", "answer_title": "Brushless alternator / excitation maintenance", "cross_family": false } ] }, { "qid": "KOL-2026-10-4336-Q001", "text": "Open circuit and close circuit test in Transformer ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Transformer Theory", "tid": "KOL-2026-10-4336", "tray": "review", "candidates": [ { "answer_id": "XFMR-THY-C-002", "score": 0.8148168921470642, "sibling_score": 0.8148168921470642, "answer_score": 0.6091506838798523, "sibling_qid": "KOL-2024-10-2736-Q001", "sibling_text": "tests on transformer open and short circuit", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Open-circuit and short-circuit tests on a transformer — how each is done, which side, and what each gives", "cross_family": false }, { "answer_id": "XFMR-THY-D-001", "score": 0.8144113421440125, "sibling_score": 0.8144113421440125, "answer_score": null, "sibling_qid": "KOL-2025-12-2921-Q002", "sibling_text": "open circuit and closed circuit test of transformer", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Transformer — principle and working", "cross_family": false }, { "answer_id": "XFMR-THY-B-002", "score": 0.8100737929344177, "sibling_score": 0.8100737929344177, "answer_score": 0.5880268573760986, "sibling_qid": "KOL-2024-03-2703-Q001", "sibling_text": "transformer open ckt and close ckt test", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Transformer open-circuit (no-load) test and core-loss measurement", "cross_family": false } ] }, { "qid": "KOL-2026-10-4336-Q002", "text": "Polarisation Index ?", "family": "Electrical - Motors & Starters", "subtopic": "Polarization Index", "tid": "KOL-2026-10-4336", "tray": "review", "candidates": [ { "answer_id": "PI-211-001", "score": 0.8344256281852722, "sibling_score": 0.8344256281852722, "answer_score": 0.4528922766447067, "sibling_qid": "MUM-2026-06-3653-Q020", "sibling_text": "polarisation index", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What polarization index is, why we use it, and the value expected", "cross_family": false }, { "answer_id": "IRT-C-007", "score": 0.532953929901123, "sibling_score": null, "answer_score": 0.532953929901123, "sibling_qid": "", "sibling_text": "polarization index pi and pi vs spot ir ir spot single reading usually at 1 min pi ratio of ir at 10 min to ir at 1 min pi ir 10 min ir 1 min", "sibling_family": "", "via": "answer_title", "answer_title": "Polarization Index (PI) — and PI vs spot IR", "cross_family": false }, { "answer_id": "IR-TEST-B-005", "score": 0.4873496383428573, "sibling_score": null, "answer_score": 0.4873496383428573, "sibling_qid": "", "sibling_text": "polarisation index pi dar and trending pi ir at 10 min ir at 1 min dar ir at 60 s ir at 30 s same continuous test commonly cited ieee 43 guide now inactive standard pi 2 acceptable class a 1 5 pi 1 unacceptable a very high pi is diagnostic context not a fixed limit check the actual readings and trend", "sibling_family": "", "via": "answer_title", "answer_title": "Polarisation index (PI), DAR, and trending", "cross_family": false } ] }, { "qid": "KOL-2026-10-4336-Q003", "text": "How will you do the continuity test for cargo line ?", "family": "Cargo Ops - Tankers", "subtopic": "Static Electricity / Bonding", "tid": "KOL-2026-10-4336", "tray": "review", "candidates": [ { "answer_id": "STAT-562-002", "score": 0.718795120716095, "sibling_score": 0.718795120716095, "answer_score": 0.5470567464828491, "sibling_qid": "KOL-2025-08-2832-Q009", "sibling_text": "continuity test in cargo pipeline procedure", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Cargo pipeline continuity test — purpose & procedure", "cross_family": false }, { "answer_id": "CONT-317-001", "score": 0.5906147956848145, "sibling_score": 0.5906147956848145, "answer_score": 0.4326381981372833, "sibling_qid": "MUM-2024-02-1425-Q002", "sibling_text": "how you do continuity test", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Continuity test of a motor winding — what it is and how it is done", "cross_family": true }, { "answer_id": "CONT-317-004", "score": 0.5756750106811523, "sibling_score": 0.5756750106811523, "answer_score": 0.5162153720855712, "sibling_qid": "CHE-2026-05-0620-Q009", "sibling_text": "continuity test of a long cable", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Continuity of a long cable or thick wire", "cross_family": true } ] }, { "qid": "KOL-2026-10-4336-Q004", "text": "Indications of fully charged, overcharged and undercharged battery ?", "family": "Electrical - Batteries & DC Systems", "subtopic": "Battery Testing / Load Test / SG", "tid": "KOL-2026-10-4336", "tray": "review", "candidates": [ { "answer_id": "BDC-P04-01", "score": 0.7551730275154114, "sibling_score": 0.7551730275154114, "answer_score": null, "sibling_qid": "KOL-2017-03-2120-Q002", "sibling_text": "how to ascertain the charging condition of a battery from s g what instrument is used how it looks like battery overcharging undercharging significance", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "Hydrometer and specific gravity — measuring it, reading it, and what it tells you", "cross_family": false }, { "answer_id": "BDC-P04-02", "score": 0.7275175452232361, "sibling_score": 0.7275175452232361, "answer_score": 0.5470487922430038, "sibling_qid": "MUM-2024-07-1441-Q005", "sibling_text": "how to test battery is fully charged", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "Battery health and state of charge — weak cell, dead cell, and when to renew", "cross_family": false }, { "answer_id": "BDC-P03-01", "score": 0.7155054211616516, "sibling_score": 0.7155054211616516, "answer_score": 0.5220944672822952, "sibling_qid": "KOL-2016-05-2059-Q003", "sibling_text": "battery charging everything float and trickle etc", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "Trickle, float, boost and full charging — purpose and changeover", "cross_family": false } ] }, { "qid": "KOL-2026-10-4336-Q005", "text": "Cascade controller ?", "family": "Automation & Controls", "subtopic": "Controller", "tid": "KOL-2026-10-4336", "tray": "review", "candidates": [ { "answer_id": "CTRL-001", "score": 0.7931219935417175, "sibling_score": 0.7931219935417175, "answer_score": 0.443151068687439, "sibling_qid": "KOC-2024-04-0993-Q009", "sibling_text": "cascade controller only explain", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Cascade control — how it works", "cross_family": false }, { "answer_id": "CTRL-002", "score": 0.6877972483634949, "sibling_score": 0.6877972483634949, "answer_score": 0.3817511513829231, "sibling_qid": "KOC-2024-07-1000-Q013", "sibling_text": "cascade control jcw", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Cascade applied to main-engine jacket cooling-water temperature", "cross_family": false }, { "answer_id": "CTRL-TL-008", "score": 0.4414311796426773, "sibling_score": null, "answer_score": 0.4414311796426773, "sibling_qid": "", "sibling_text": "cascade control the slave controller and split range control two controllers in series master primary sets the set point of slave secondary master output is the slave s set point not a direct valve signal", "sibling_family": "", "via": "answer_title", "answer_title": "Cascade control, the slave controller, and split-range control", "cross_family": false } ] }, { "qid": "KOL-2026-10-4337-Q001", "text": "Factor of subdivision?", "family": "Ship Construction & Stability", "subtopic": "DEFINITION", "tid": "KOL-2026-10-4337", "tray": "review", "candidates": [ { "answer_id": "FLP-142-P02-005", "score": 0.8377761244773865, "sibling_score": 0.8377761244773865, "answer_score": 0.4481454700231552, "sibling_qid": "MUM-2026-09-3878-Q003", "sibling_text": "factor of subdivision", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Factor of subdivision — how it is fixed (length and criterion numeral)", "cross_family": false }, { "answer_id": "FLP-142-P02-004", "score": 0.7882629632949829, "sibling_score": 0.7882629632949829, "answer_score": 0.5010066628456116, "sibling_qid": "KOL-2019-12-0365-Q004", "sibling_text": "factor of subdivision", "sibling_family": "", "via": "sibling", "answer_title": "Factor of subdivision — what it is", "cross_family": false }, { "answer_id": "LOLL-P02-001", "score": 0.7877761125564575, "sibling_score": 0.7877761125564575, "answer_score": null, "sibling_qid": "MUM-2025-06-0335-Q004", "sibling_text": "factor of subdivision", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "4. Significance of angle of loll — and why it occurs", "cross_family": true } ] }, { "qid": "KOL-2026-10-4337-Q002", "text": "What causes foam to become high and low expansion??", "family": "SOLAS - Fire Safety", "subtopic": "Foam System / Monitor", "tid": "KOL-2026-10-4337", "tray": "review", "candidates": [ { "answer_id": "FOAM-SYS-P04-001", "score": 0.7070410847663879, "sibling_score": 0.7070410847663879, "answer_score": 0.4859501481056213, "sibling_qid": "MUM-2023-07-2739-Q002", "sibling_text": "expansion of foam low high ratio mechanism", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "4. Expansion ratios — low, medium, high", "cross_family": false }, { "answer_id": "FOAM-032-P03-002", "score": 0.6928728818893433, "sibling_score": 0.6928728818893433, "answer_score": 0.3989304095506668, "sibling_qid": "KOL-2020-01-0379-Q005", "sibling_text": "foam surfactant additives used in foam high expansion foam low expansion foam what is expansion ratio advantages disadvantages he went deeply inside the foam", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "High-expansion foam generator / nozzle arrangement — draw and explain", "cross_family": false }, { "answer_id": "FOAM-SYS-P04-005", "score": 0.6529993414878845, "sibling_score": 0.6529993414878845, "answer_score": 0.4697109341621399, "sibling_qid": "KOL-2025-07-0998-Q002", "sibling_text": "expansion of foam how decided", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "5. What decides the foam expansion ratio", "cross_family": false } ] }, { "qid": "KOL-2026-10-4337-Q003", "text": "Onboard Training manual?", "family": "SOLAS - Fire Safety", "subtopic": "FSS Code", "tid": "KOL-2026-10-4337", "tray": "review", "candidates": [ { "answer_id": "FIRE-P05-01", "score": 0.7998283505439758, "sibling_score": 0.7998283505439758, "answer_score": 0.40850637704133985, "sibling_qid": "KOL-2023-12-0797-Q002", "sibling_text": "training manual on board", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fire-safety training manual — SOLAS II-2 Reg 15 contents and location", "cross_family": false }, { "answer_id": "XFMR-THY-G-007", "score": 0.4303664267063141, "sibling_score": null, "answer_score": 0.4303664267063141, "sibling_qid": "", "sibling_text": "7 step up step down the real purpose onboard", "sibling_family": "", "via": "answer_title", "answer_title": "7. Step-up / step-down: the real purpose onboard", "cross_family": false }, { "answer_id": "JOIN-HDVR-003", "score": 0.4108624279499054, "sibling_score": null, "answer_score": 0.4108624279499054, "sibling_qid": "", "sibling_text": "familiarising and training a newly joined junior engineer as second engineer safety familiarisation before any duty stcw reg i 14 a vi 1 ism 6 3 escape routes muster list emergency duties lsa ffa location and use engine room hazards ppe ship and job specific familiarisation machinery in his charge ums alarm and dead man system main and auxiliary start stop bunkering pms permit to work and risk ass", "sibling_family": "", "via": "answer_title", "answer_title": "Familiarising and training a newly joined junior engineer as Second Engineer", "cross_family": false } ] }, { "qid": "KOL-2026-10-4337-Q004", "text": "As a 2E what all thing to be prepare for Ism audit.?", "family": "ISM Code", "subtopic": "ISM / SMS / Audit", "tid": "KOL-2026-10-4337", "tray": "review", "candidates": [ { "answer_id": "ISM-AUDIT-P01-001", "score": 0.7361785769462585, "sibling_score": 0.7361785769462585, "answer_score": 0.48294557332992555, "sibling_qid": "KOL-2023-10-0779-Q004", "sibling_text": "ism audit as a 2e what all you ll prepare", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Preparing engine room, records and documents for ISM/SMS audit (2/E)", "cross_family": false }, { "answer_id": "ISM-2E-B-001", "score": 0.7139557003974915, "sibling_score": 0.7139557003974915, "answer_score": null, "sibling_qid": "KOC-2022-10-0106-Q003", "sibling_text": "ism audit preparations as 2 e", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "B1. Preparing for an ISM audit as Second Engineer", "cross_family": false }, { "answer_id": "ISM-2E-C-001", "score": 0.6780097484588623, "sibling_score": 0.6780097484588623, "answer_score": 0.46602543592453, "sibling_qid": "KOC-2022-11-0108-Q003", "sibling_text": "ism audit by external surveyor what all preparations as 2e other than documentation and machinery side preparations training or crew drills etc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM audit / survey preparation as Second Engineer — beyond the paperwork", "cross_family": false } ] }, { "qid": "KOL-2026-10-4338-Q001", "text": "Crosshead bearing survey ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Crosshead Bearing", "tid": "KOL-2026-10-4338", "tray": "review", "candidates": [ { "answer_id": "XHD-BRG-C-001", "score": 0.8211845755577087, "sibling_score": 0.8211845755577087, "answer_score": null, "sibling_qid": "KOC-2021-11-1768-Q006", "sibling_text": "cross head bearing survey", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "A. Present the crosshead bottom shell for survey, piston in place", "cross_family": false }, { "answer_id": "CXH-BRG-FINAL-1-001", "score": 0.8193625211715698, "sibling_score": 0.8193625211715698, "answer_score": null, "sibling_qid": "KOL-2016-11-1838-Q004", "sibling_text": "cross head bearing survey", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead bearing survey: open-up, removal & inspection", "cross_family": false }, { "answer_id": "XHD-BRG-B-001", "score": 0.8151712417602539, "sibling_score": 0.8151712417602539, "answer_score": 0.48887198865413667, "sibling_qid": "KOL-2019-07-3259-Q003", "sibling_text": "crosshead bearing survey", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Preparing the crosshead bottom-end bearing and presenting it to the surveyor", "cross_family": false } ] }, { "qid": "KOL-2026-10-4338-Q002", "text": "Fuel pump lead ,cam lead, zero setting how to check?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Pump Overhaul", "tid": "KOL-2026-10-4338", "tray": "review", "candidates": [ { "answer_id": "FP-OVHL-005", "score": 0.7622438073158264, "sibling_score": 0.7622438073158264, "answer_score": 0.552501094341278, "sibling_qid": "MUM-2026-05-3246-Q006", "sibling_text": "fuel pump zero setting fuel pump lead", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel pump zero setting — what it is, why, and how to set it", "cross_family": false }, { "answer_id": "FCL-P01-001", "score": 0.7560591101646423, "sibling_score": 0.7560591101646423, "answer_score": 0.575780975818634, "sibling_qid": "KOL-2025-11-3882-Q002", "sibling_text": "fuel pump cam lead how to check both", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel pump lead and fuel cam lead: meaning, measurement, significance and adjustment", "cross_family": false }, { "answer_id": "FCAM-LEAD-P04-001", "score": 0.740693986415863, "sibling_score": 0.740693986415863, "answer_score": 0.5694644987583161, "sibling_qid": "KOL-2021-10-3471-Q004", "sibling_text": "how to check fuel cam lead", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel cam lead, cam profile, negative cam and cam slip", "cross_family": false } ] }, { "qid": "KOL-2026-10-4338-Q003", "text": "Boiler gauge glass has oil What steps to be taken How to find the oil leak?", "family": "Boilers - Operations & Firing", "subtopic": "Scum / Blow Down", "tid": "KOL-2026-10-4338", "tray": "review", "candidates": [ { "answer_id": "SBD-001", "score": 0.7990557551383972, "sibling_score": 0.7990557551383972, "answer_score": 0.6325192272663116, "sibling_qid": "KOL-2016-11-3017-Q005", "sibling_text": "by bnd oil in boiler gauge glass course of actions", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "You find oil in the boiler gauge glass — causes, how you identify the source, and your actions as 2/E (including if manoeuvring). What is carryover?", "cross_family": false }, { "answer_id": "BCFS-001", "score": 0.5526093631982804, "sibling_score": null, "answer_score": 0.5526093631982804, "sibling_qid": "", "sibling_text": "detecting and responding to oil contamination in the hot well or cascade tank detect oil film or sheen on the observation tank surface smell oiliness in the gauge glass oil in water monitor alarm if fitted foaming or an unstable boiler water level never let oil into the boiler it forms an insulating film on heating surfaces causing local overheating tube bulging and failure and it makes the water ", "sibling_family": "", "via": "answer_title", "answer_title": "Detecting and responding to oil contamination in the hot well or cascade tank", "cross_family": false }, { "answer_id": "BLR-TUBE-P02-004", "score": 0.5524361431598663, "sibling_score": null, "answer_score": 0.5524361431598663, "sibling_qid": "", "sibling_text": "oil in the cascade hotwell tracing the leaking element symptom oil film sheen in the cascade observation tank or hotwell contamination of the condensate feed safety critical first action do not pump contaminated water to the boiler oil forms an insulating film on the water side causing local overheating bagging blistering and tube failure", "sibling_family": "", "via": "answer_title", "answer_title": "Oil in the cascade/hotwell: tracing the leaking element", "cross_family": false } ] }, { "qid": "KOL-2026-10-4338-Q004", "text": "How to check chain is loose ? How to measure length ? Tightness procedure ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Chain & Tensioning", "tid": "KOL-2026-10-4338", "tray": "review", "candidates": [ { "answer_id": "CHAIN-TENS-B-001", "score": 0.7297695875167847, "sibling_score": 0.7297695875167847, "answer_score": 0.5443069100379944, "sibling_qid": "MUM-2022-11-2715-Q022", "sibling_text": "chain elongation indication how to measure and tight", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Chain elongation and wear — checking, then tighten or renew", "cross_family": false }, { "answer_id": "CHAIN-TENS-A-002", "score": 0.6981512904167175, "sibling_score": 0.6981512904167175, "answer_score": 0.5667185634374619, "sibling_qid": "KOL-2025-01-3736-Q001", "sibling_text": "how will you know tightness of chain", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Measuring Chain Slackness At Site", "cross_family": false }, { "answer_id": "CHAIN-TENS-A-001", "score": 0.6907375454902649, "sibling_score": 0.6907375454902649, "answer_score": null, "sibling_qid": "KOL-2018-08-3172-Q005", "sibling_text": "chain tightness how will u makeout that chain is loose without touching rao asked 1 quest checks to be made in chain drive ext paul int rao 01 03 18", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Slack Chain — Indication & Effects", "cross_family": false } ] }, { "qid": "KOL-2026-10-4338-Q005", "text": "Propeller fitting and removal ? Pilgrim nut", "family": "Drydock & Underwater Surveys", "subtopic": "Propeller / Pilgrim Nut", "tid": "KOL-2026-10-4338", "tray": "review", "candidates": [ { "answer_id": "PROP-PIL-A-001", "score": 0.8096404671669006, "sibling_score": 0.8096404671669006, "answer_score": 0.6010883778333663, "sibling_qid": "KOL-2022-09-3568-Q004", "sibling_text": "propeller removal and fixing pilgrim nut method checks before fitting", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Pilgrim / SKF hydraulic nut — fitting, push-up, extraction and removal", "cross_family": false }, { "answer_id": "PROP-PN-B-004", "score": 0.5412618041038513, "sibling_score": null, "answer_score": 0.5412618041038513, "sibling_qid": "", "sibling_text": "removing withdrawing a keyless propeller take the propeller s full weight on crane slingsfirst never work under an unsupported propeller slacken the nut butleave the nut on or fit a withdrawal plate as a positive mechanical stop before any oil goes in", "sibling_family": "", "via": "answer_title", "answer_title": "Removing / withdrawing a keyless propeller", "cross_family": false }, { "answer_id": "PROP-RP-002", "score": 0.5158748090267181, "sibling_score": null, "answer_score": 0.5158748090267181, "sibling_qid": "", "sibling_text": "propeller fitting push up drop bedding dry vs wet bed first engineer s blue contact check well distributed no concentration at the large or small end meet the class maker minimum contact area a keyless fit is an interference fit torque is carried by friction so the push up is the safety critical step", "sibling_family": "", "via": "answer_title", "answer_title": "Propeller fitting — push-up, drop, bedding, dry vs wet", "cross_family": false } ] }, { "qid": "KOL-2026-10-4339-Q001", "text": "Status of oral and written then started viva ?", "family": "__META__ (non-exam)", "subtopic": "", "tid": "KOL-2026-10-4339", "tray": "new", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.6453667879104614, "sibling_score": 0.6453667879104614, "answer_score": null, "sibling_qid": "MUM-2026-03-1294-Q001", "sibling_text": "status of writtens and orals", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": false }, { "answer_id": "DUS-P1-02", "score": 0.4453275501728058, "sibling_score": 0.4453275501728058, "answer_score": null, "sibling_qid": "KOL-2025-08-3851-Q006", "sibling_text": "drydock plans rudder checks cross questions what about other written oral exams status told waiting for naval written result to come all other paper cleared", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Plans, drawings and special tools kept ready for drydock — engine-department view", "cross_family": true }, { "answer_id": "ACCT-583-A-001", "score": 0.3990025818347931, "sibling_score": 0.3990025818347931, "answer_score": null, "sibling_qid": "MUM-2024-10-2246-Q006", "sibling_text": "boiler accumulation test passes done with orals", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Explain the boiler accumulation pressure test — what it is, its purpose, and how it is carried out (including when and at what interval)", "cross_family": true } ] }, { "qid": "KOL-2026-10-4339-Q002", "text": "Type of ship ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2026-10-4339", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8367663025856018, "sibling_score": 0.8367663025856018, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8020406365394592, "sibling_score": 0.8020406365394592, "answer_score": 0.5474629700183868, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8004519939422607, "sibling_score": 0.8004519939422607, "answer_score": 0.5221094131469727, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "KOL-2026-10-4339-Q003", "text": "SCR working ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Thyristor / SCR", "tid": "KOL-2026-10-4339", "tray": "review", "candidates": [ { "answer_id": "SCR-306-A-001", "score": 0.79851895570755, "sibling_score": 0.79851895570755, "answer_score": 0.35998298078775404, "sibling_qid": "CHE-2026-02-0479-Q012", "sibling_text": "scr working", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What an SCR is and how it works", "cross_family": false }, { "answer_id": "AV6-P03-02", "score": 0.6852923035621643, "sibling_score": 0.6852923035621643, "answer_score": null, "sibling_qid": "KOC-2024-08-1004-Q002", "sibling_text": "scr system working", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SCR for marine NOx control — meaning, working principle, chemistry and system components", "cross_family": true }, { "answer_id": "SCR-306-A-004", "score": 0.6448274254798889, "sibling_score": 0.6448274254798889, "answer_score": null, "sibling_qid": "KOL-2022-09-2610-Q006", "sibling_text": "scr uses", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Applications and onboard uses", "cross_family": false } ] }, { "qid": "KOL-2026-10-4339-Q004", "text": "Ammonia slip ?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Methane Slip", "tid": "KOL-2026-10-4339", "tray": "review", "candidates": [ { "answer_id": "AV6-P03-03", "score": 0.8015583157539368, "sibling_score": 0.8015583157539368, "answer_score": 0.37200490236282346, "sibling_qid": "KOC-2026-09-2209-Q002", "sibling_text": "ammonia slip", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "SCR operation, urea/ammonia dosing and ammonia slip — 2/E responsibilities", "cross_family": false }, { "answer_id": "MSLIP-330-001", "score": 0.5964175462722778, "sibling_score": 0.5964175462722778, "answer_score": null, "sibling_qid": "MUM-2026-07-3679-Q005", "sibling_text": "methane slip", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What is methane slip?", "cross_family": false }, { "answer_id": "BIO-FUEL-004", "score": 0.37393058836460114, "sibling_score": null, "answer_score": 0.37393058836460114, "sibling_qid": "", "sibling_text": "ammonia injection in the electronically controlled me two stroke ammonia nh3 carbon free at the point of use no co2 from combustion made from hydrogen via the haber bosch process poor combustion high autoignition temperature narrow flammability low flame speed needs a pilot fuel like methanol so it stays dual fuel", "sibling_family": "", "via": "answer_title", "answer_title": "Ammonia injection in the electronically-controlled (ME) two-stroke", "cross_family": false } ] }, { "qid": "KOL-2026-10-4339-Q005", "text": "Contra rotating propeller construction and Cross questions ?", "family": "General Marine Engineering", "subtopic": "Shafting / Propeller / CPP", "tid": "KOL-2026-10-4339", "tray": "review", "candidates": [ { "answer_id": "SHAFT-CPP-005", "score": 0.6617874503135681, "sibling_score": 0.6617874503135681, "answer_score": 0.431684398651123, "sibling_qid": "KOC-2024-09-1868-Q007", "sibling_text": "contra rotating propeller", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "5. Propeller types, design criteria & latest developments", "cross_family": false }, { "answer_id": "SHAFT-CPP-001", "score": 0.6297011971473694, "sibling_score": 0.6297011971473694, "answer_score": null, "sibling_qid": "MUM-2022-10-1031-Q011", "sibling_text": "draw propeller curve and cross questions", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "1. Propeller curve & load diagram", "cross_family": false }, { "answer_id": "SPR-STERN-006", "score": 0.6120089888572693, "sibling_score": 0.6120089888572693, "answer_score": null, "sibling_qid": "KOL-2025-05-1802-Q004", "sibling_text": "contra rotating propeller", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Propeller types & special propulsors", "cross_family": true } ] }, { "qid": "KOL-2026-10-4339-Q006", "text": "Crankpin ovality what to do ?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankpin Checks", "tid": "KOL-2026-10-4339", "tray": "review", "candidates": [ { "answer_id": "CRPIN-CHK-P01-001", "score": 0.7958927154541016, "sibling_score": 0.7958927154541016, "answer_score": 0.5390429258346557, "sibling_qid": "KOL-2025-12-1828-Q009", "sibling_text": "what to do if crankpin is oval", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankpin ovality — how it is measured and at what positions", "cross_family": false }, { "answer_id": "CRPIN-CHK-P01-002", "score": 0.756862461566925, "sibling_score": 0.756862461566925, "answer_score": 0.53448965549469, "sibling_qid": "KOL-2017-01-1270-Q010", "sibling_text": "what you will do if your crankpin is oval beyond limit", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankpin ovality — causes, effects, limit and immediate action", "cross_family": false }, { "answer_id": "CRPIN-CHK-P01-004", "score": 0.7501429915428162, "sibling_score": 0.7501429915428162, "answer_score": 0.5629629462957382, "sibling_qid": "KOL-2021-02-3378-Q002", "sibling_text": "crank pin ovalitity limit how to remove whole process and final remedy tell him about undersized bearing", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Repairing an oval or worn crankpin — grinding, undersize bearings, renewal", "cross_family": false } ] }, { "qid": "KOL-2026-10-4339-Q007", "text": "How to do liner reconditioning in Generator ?", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "KOL-2026-10-4339", "tray": "new", "candidates": [ { "answer_id": "CYL-LINER-P03-007", "score": 0.5654926896095276, "sibling_score": 0.5654926896095276, "answer_score": null, "sibling_qid": "KOL-2018-12-3202-Q002", "sibling_text": "how will you recondition a liner whose clearance is exceeded", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Cylinder liner checks at overhaul, decarb and under-piston inspection", "cross_family": false }, { "answer_id": "CYL-LINER-P03-003", "score": 0.560291588306427, "sibling_score": 0.560291588306427, "answer_score": null, "sibling_qid": "KOL-2022-05-3536-Q003", "sibling_text": "liner renewal procedure special checks tools if liner stuck then what to do", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Removing a stuck cylinder liner — how, and where do you jack?", "cross_family": false }, { "answer_id": "CYL-LINER-P03-006", "score": 0.5576741099357605, "sibling_score": 0.5576741099357605, "answer_score": 0.4308531045913696, "sibling_qid": "KOL-2017-04-1289-Q008", "sibling_text": "removing old liner procedure of main engine and checks br fitting new liner", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Fitting a new cylinder liner — checks and precautions during renewal and installation", "cross_family": false } ] }, { "qid": "KOL-2026-10-4339-Q008", "text": "Maximum liner wear in Generator ?", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "KOL-2026-10-4339", "tray": "review", "candidates": [ { "answer_id": "CYL-LINER-P01-003", "score": 0.69252610206604, "sibling_score": 0.69252610206604, "answer_score": null, "sibling_qid": "KOC-2026-08-2146-Q014", "sibling_text": "maximum wear down of liner", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "From the readings: wear, wear rate, units and renewal limits", "cross_family": false }, { "answer_id": "CYL-LINER-P02-003", "score": 0.5972639918327332, "sibling_score": 0.5972639918327332, "answer_score": null, "sibling_qid": "KOL-2024-12-3728-Q005", "sibling_text": "if you use worn down liner more than 0 8 what will happen", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L3 · T044-PART_02-G003High", "cross_family": false }, { "answer_id": "CYL-LINER-P02-005", "score": 0.5881960988044739, "sibling_score": 0.5881960988044739, "answer_score": null, "sibling_qid": "KOL-2026-04-3950-Q004", "sibling_text": "main engine one unit liner wear down increasing and all unit wear down increasing reasons", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L5 · T044-PART_02-G005High", "cross_family": false } ] }, { "qid": "KOL-2026-10-4339-Q009", "text": "Why tie rods are present in 2 stroke engine and not in 4 stroke engine ?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Tie Rod / Tie Bolt", "tid": "KOL-2026-10-4339", "tray": "review", "candidates": [ { "answer_id": "TR-TB-PA-002", "score": 0.716399610042572, "sibling_score": 0.716399610042572, "answer_score": 0.6063518047332763, "sibling_qid": "CHE-2025-11-0222-Q003", "sibling_text": "why tie rod provided on the 2stoke not in the 4stroke", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Why tie rods in large two-strokes but not in auxiliary/four-stroke engines", "cross_family": false }, { "answer_id": "TR-TB-PA-004", "score": 0.5972679257392883, "sibling_score": 0.5972679257392883, "answer_score": 0.470807808637619, "sibling_qid": "CHE-2025-08-0201-Q006", "sibling_text": "tie rods how many in ur engine why twin tie rod can it be used as redundancy", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Arrangement, number and position; twin tie rods and MC/MC-C developments", "cross_family": false }, { "answer_id": "TR-TB-PA-001", "score": 0.5685299634933472, "sibling_score": 0.5685299634933472, "answer_score": null, "sibling_qid": "KOL-2019-07-1460-Q005", "sibling_text": "tie rod function how much tie rod in your engine how generator work without tie rod from where gas from transmit to hull", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Function of tie rods and the firing-load path", "cross_family": false } ] }, { "qid": "KOL-2026-10-4339-Q010", "text": "Survey of lifeboat brakes ?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Lifeboat", "tid": "KOL-2026-10-4339", "tray": "review", "candidates": [ { "answer_id": "DRG-B-003", "score": 0.7260287404060364, "sibling_score": 0.7260287404060364, "answer_score": null, "sibling_qid": "KOL-2022-09-0677-Q005", "sibling_text": "life boat survey types of brake construction and purpose davit fall changing interval", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Brakes — types, why two, and how the centrifugal brake works", "cross_family": false }, { "answer_id": "DRG-B-004", "score": 0.7026605010032654, "sibling_score": 0.7026605010032654, "answer_score": null, "sibling_qid": "KOL-2018-08-0213-Q004", "sibling_text": "maintenance on lifeboat davit testing of brakes checks as 2 e", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Brake testing — static, dynamic, and what you actually do onboard", "cross_family": false }, { "answer_id": "LBT-TEST-B-003", "score": 0.6708577275276184, "sibling_score": 0.6708577275276184, "answer_score": null, "sibling_qid": "KOC-2025-02-0539-Q004", "sibling_text": "life boat brake testing", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Winch/davit brake test — static vs dynamic, holding capacity, slippage", "cross_family": false } ] }, { "qid": "KOL-2026-10-4339-Q011", "text": "How to do hull plate repair in dry dock if damaged and how to test it ?", "family": "Drydock & Underwater Surveys", "subtopic": "Hull Repairs in DD", "tid": "KOL-2026-10-4339", "tray": "review", "candidates": [ { "answer_id": "PW-327-003", "score": 0.714160680770874, "sibling_score": 0.714160680770874, "answer_score": 0.5392718762159348, "sibling_qid": "MUM-2017-01-2126-Q008", "sibling_text": "test on weld of hull plating repair during drydock", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "3. Shell / deck plate repair and renewal in dry dock (class context)", "cross_family": true }, { "answer_id": "HULL-DD-005", "score": 0.7051523923873901, "sibling_score": 0.7051523923873901, "answer_score": 0.5679936230182647, "sibling_qid": "KOL-2022-03-3522-Q002", "sibling_text": "in dry dock if a hull plate is renewed how would insure it is intact and no leakage will occur during flooding", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "6. Integrity and leak test after plate renewal, before flooding the dock", "cross_family": false }, { "answer_id": "HULL-DD-004", "score": 0.682981550693512, "sibling_score": 0.682981550693512, "answer_score": null, "sibling_qid": "KOL-2021-10-3464-Q004", "sibling_text": "during dry dock you found one of hull plate damaged how to find thickness of that plate how to order", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "4. Hull plate renewal / insert plate: thickness, ordering and fit", "cross_family": false } ] }, { "qid": "KOL-2026-10-4339-Q012", "text": "How to find the original plate thickness of the hull ?", "family": "Ship Construction & Stability", "subtopic": "Tumblehome / Hull Form", "tid": "KOL-2026-10-4339", "tray": "new", "candidates": [ { "answer_id": "SUB-CORR-002", "score": 0.6253710985183716, "sibling_score": 0.6253710985183716, "answer_score": 0.48520447611808776, "sibling_qid": "KOL-2025-03-1970-Q009", "sibling_text": "thickness measurement of hull", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "SUB-CORR-02 — How is hull plating thickness measured at survey, and how is wastage / substantial corrosion assessed from the readings?", "cross_family": true }, { "answer_id": "SHELL-PLT-A-004", "score": 0.6223450899124146, "sibling_score": 0.6223450899124146, "answer_score": 0.5303631782531738, "sibling_qid": "MUM-2026-05-3144-Q009", "sibling_text": "hull thickness measurement", "sibling_family": "", "via": "sibling", "answer_title": "Measuring hull / shell-plate thickness in drydock", "cross_family": false }, { "answer_id": "DDHSC-009", "score": 0.621923565864563, "sibling_score": 0.621923565864563, "answer_score": 0.49663791060447693, "sibling_qid": "MUM-2026-06-3628-Q005", "sibling_text": "hull thickness measurement", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "How do you measure hull thickness in drydock?", "cross_family": true } ] }, { "qid": "KOL-2026-10-4339-Q013", "text": "What is jet shaker effect ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Crosshead Bearing", "tid": "KOL-2026-10-4339", "tray": "review", "candidates": [ { "answer_id": "XHD-BRG-B-006", "score": 0.6754154562950134, "sibling_score": 0.6754154562950134, "answer_score": null, "sibling_qid": "KOL-2022-03-1666-Q002", "sibling_text": "jet shaker effect in sulzer engine", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "MAN B&W versus Sulzer / Wärtsilä crosshead bearing and lubrication", "cross_family": false }, { "answer_id": "IM-GW-C-001", "score": 0.52736496925354, "sibling_score": 0.52736496925354, "answer_score": null, "sibling_qid": "KOL-2019-09-2323-Q002", "sibling_text": "clogging and jogging of motors in jet", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Cogging, crawling and harmonic effects in induction motors", "cross_family": true }, { "answer_id": "THRUST-BRG-B-001", "score": 0.5139150619506836, "sibling_score": 0.5139150619506836, "answer_score": null, "sibling_qid": "KOL-2024-09-3709-Q004", "sibling_text": "til til motion in thrust pad", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Thrust block — construction, location and how thrust reaches the hull", "cross_family": false } ] }, { "qid": "KOL-2026-10-4340-Q001", "text": "Different between chemical tanker and product tanker?", "family": "Tanker - Cargo Systems", "subtopic": "", "tid": "KOL-2026-10-4340", "tray": "review", "candidates": [ { "answer_id": "COT-03", "score": 0.7773693799972534, "sibling_score": 0.7773693799972534, "answer_score": 0.604645037651062, "sibling_qid": "MUM-2025-07-0348-Q003", "sibling_text": "chemical tanker and product tanker difference", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Product tanker versus chemical tanker", "cross_family": true }, { "answer_id": "TKR-TYPE-001", "score": 0.7621410489082336, "sibling_score": 0.7621410489082336, "answer_score": 0.5903082549571991, "sibling_qid": "KOL-2016-10-0016-Q001", "sibling_text": "product tanker n chemical tkr difference n all details", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "1. Crude oil tanker vs product tanker / carrier — construction and cargo-area differences", "cross_family": true }, { "answer_id": "COT-P03-08", "score": 0.7308229207992554, "sibling_score": 0.7308229207992554, "answer_score": 0.5892597138881683, "sibling_qid": "MUM-2023-10-0136-Q003", "sibling_text": "diff between product tanker and chem tanker cargo residues discharge arrangment diffrence", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Discharge, stripping and residue arrangements — oil/product tanker versus chemical tanker", "cross_family": true } ] }, { "qid": "KOL-2026-10-4340-Q002", "text": "Different type of inspection by PSC ?", "family": "Surveys - Statutory", "subtopic": "CSM(Continuous Machinery survey)", "tid": "KOL-2026-10-4340", "tray": "review", "candidates": [ { "answer_id": "PSC-002", "score": 0.7869612574577332, "sibling_score": 0.7869612574577332, "answer_score": 0.5456974834203719, "sibling_qid": "MUM-2022-07-0015-Q004", "sibling_text": "types of inspection by psc", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "2. Types, criteria and escalation of a PSC inspection", "cross_family": false }, { "answer_id": "PSC-003", "score": 0.708073079586029, "sibling_score": 0.708073079586029, "answer_score": 0.4632286846637726, "sibling_qid": "CHE-2026-02-0106-Q005", "sibling_text": "psc inspection", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "3. What the PSCO checks after coming aboard, and how the inspection is conducted", "cross_family": false }, { "answer_id": "PSC-SURV-P01-002", "score": 0.6748138666152954, "sibling_score": 0.6748138666152954, "answer_score": null, "sibling_qid": "MUM-2024-08-1457-Q016", "sibling_text": "cic inspection under psc", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is a Concentrated Inspection Campaign (CIC) under PSC?", "cross_family": false } ] }, { "qid": "KOL-2026-10-4340-Q003", "text": "Requirements for coming on port as fire detector system ?", "family": "SOLAS - Fire Safety", "subtopic": "Fire Detector Type", "tid": "KOL-2026-10-4340", "tray": "review", "candidates": [ { "answer_id": "FIRE-P03-01", "score": 0.7092914581298828, "sibling_score": 0.7092914581298828, "answer_score": 0.4797309458255768, "sibling_qid": "MUM-2026-03-0865-Q008", "sibling_text": "fire detection system requirements", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fixed fire-detection and alarm — loop architecture, control cabinet, power and indications", "cross_family": false }, { "answer_id": "FSH-DET-005", "score": 0.6187191605567932, "sibling_score": 0.6187191605567932, "answer_score": null, "sibling_qid": "CHE-2026-02-0106-Q009", "sibling_text": "fire detectors testing methods intervals requirements", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Testing, planned maintenance, fault identification, isolation and circuit protection", "cross_family": false }, { "answer_id": "FSS-CODE-005", "score": 0.6069052815437317, "sibling_score": 0.6069052815437317, "answer_score": null, "sibling_qid": "MUM-2022-09-0047-Q002", "sibling_text": "requirements fire fighting system as per fss code he expecting some number of hoses as per fss i don t know", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "What are the functional requirements placed on a fire-fighting system, and what does the framework require of the arrangements you must have?", "cross_family": false } ] }, { "qid": "KOL-2026-10-4340-Q004", "text": "Documents for ESP ?", "family": "Surveys - Statutory", "subtopic": "ESP / Enhanced Survey", "tid": "KOL-2026-10-4340", "tray": "review", "candidates": [ { "answer_id": "ESP-A-003", "score": 0.7107853293418884, "sibling_score": 0.7107853293418884, "answer_score": 0.3819166451692581, "sibling_qid": "MUM-2026-01-0726-Q005", "sibling_text": "esp file content", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What documents, ESP file, certificates, class notation and access are required for ESP?", "cross_family": false }, { "answer_id": "ESP-A-001", "score": 0.6882049441337585, "sibling_score": 0.6882049441337585, "answer_score": null, "sibling_qid": "KOL-2019-08-0317-Q007", "sibling_text": "explain esp", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the Enhanced Survey Programme (ESP), and what is its purpose?", "cross_family": false }, { "answer_id": "MSB-ESB-B-005", "score": 0.3707637876272201, "sibling_score": null, "answer_score": 0.3707637876272201, "sibling_qid": "", "sibling_text": "esb feed to essential services", "sibling_family": "", "via": "answer_title", "answer_title": "ESB feed to essential services", "cross_family": false } ] }, { "qid": "KOL-2026-10-4340-Q006", "text": "Switch board survey ?", "family": "Surveys - Statutory", "subtopic": "Electrical Survey", "tid": "KOL-2026-10-4340", "tray": "review", "candidates": [ { "answer_id": "ELEC-SURV-007", "score": 0.7097553610801697, "sibling_score": 0.7097553610801697, "answer_score": null, "sibling_qid": "KOL-2024-12-2753-Q002", "sibling_text": "main switch board survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Main switchboard survey & ACB testing", "cross_family": false }, { "answer_id": "SURV-GEN-001", "score": 0.596709668636322, "sibling_score": 0.596709668636322, "answer_score": 0.3882879659533501, "sibling_qid": "KOC-2023-01-0125-Q005", "sibling_text": "types of surveys on board", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What statutory surveys are carried out on board?", "cross_family": false }, { "answer_id": "ELEC-SURV-004", "score": 0.5472254753112793, "sibling_score": 0.5472254753112793, "answer_score": null, "sibling_qid": "MUM-2025-09-1663-Q005", "sibling_text": "elec survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Preparing & carrying out the survey as Second Engineer", "cross_family": false } ] }, { "qid": "KOL-2026-10-4340-Q007", "text": "AVR parts and functions ?", "family": "Electrical - Generator & Alternator", "subtopic": "AVR / Excitation", "tid": "KOL-2026-10-4340", "tray": "review", "candidates": [ { "answer_id": "AVR-EXC-A-001", "score": 0.7525872588157654, "sibling_score": 0.7525872588157654, "answer_score": 0.3662779003381729, "sibling_qid": "MUM-2026-09-3919-Q004", "sibling_text": "avr function", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "What is the purpose and function of the AVR?", "cross_family": false }, { "answer_id": "AVR-EXC-B-001", "score": 0.7329927086830139, "sibling_score": 0.7329927086830139, "answer_score": 0.34708984196186066, "sibling_qid": "KOL-2023-10-0782-Q008", "sibling_text": "avr function in details", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Explain the AVR working principle and control-loop operation.", "cross_family": false }, { "answer_id": "AVR-EXC-H-001", "score": 0.7238625288009644, "sibling_score": 0.7238625288009644, "answer_score": 0.39663429409265516, "sibling_qid": "CHE-2026-02-0479-Q011", "sibling_text": "avr components working", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "AVR — location, components and fault checks", "cross_family": false } ] }, { "qid": "KOL-2026-10-4340-Q008", "text": "Load test of battery and time and how to measure specific gravity ?", "family": "Electrical - Batteries & DC Systems", "subtopic": "Battery Testing / Load Test / SG", "tid": "KOL-2026-10-4340", "tray": "review", "candidates": [ { "answer_id": "BDC-P04-01", "score": 0.690811038017273, "sibling_score": 0.690811038017273, "answer_score": null, "sibling_qid": "MUM-2026-02-0794-Q012", "sibling_text": "how to check specific gravity of battery value for fully charged condition", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "Hydrometer and specific gravity — measuring it, reading it, and what it tells you", "cross_family": false }, { "answer_id": "BDC-P04-03", "score": 0.6873909831047058, "sibling_score": 0.6873909831047058, "answer_score": 0.47818817794322965, "sibling_qid": "MUM-2025-07-1567-Q004", "sibling_text": "load test of a battery value", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "Battery load test on board — preparation, deciding the load, and reading the result", "cross_family": false }, { "answer_id": "BDC-P04-02", "score": 0.6720214486122131, "sibling_score": 0.6720214486122131, "answer_score": 0.4618145525455475, "sibling_qid": "KOL-2026-07-4250-Q001", "sibling_text": "second hand ship you join and ce tell you to check the battery condition how to check specific gravity load test", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "Battery health and state of charge — weak cell, dead cell, and when to renew", "cross_family": false } ] }, { "qid": "KOL-2026-10-4341-Q001", "text": "Benzene ring in engine ?", "family": "2-Stroke - Components (Other)", "subtopic": "Piston Rings", "tid": "KOL-2026-10-4341", "tray": "new", "candidates": [ { "answer_id": "PRING-CLR-A-002", "score": 0.5027640461921692, "sibling_score": 0.5027640461921692, "answer_score": null, "sibling_qid": "CHE-2026-03-0490-Q006", "sibling_text": "ring width of piston ring importance func 4b ext t mohan int po", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston-ring clearances and calibration — butt, axial, radial, wear limits", "cross_family": false }, { "answer_id": "PRING-B-004", "score": 0.49859514832496643, "sibling_score": 0.49859514832496643, "answer_score": null, "sibling_qid": "KOL-2018-01-1337-Q001", "sibling_text": "piston ring details of main engine", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Function, sealing, position & arrangement", "cross_family": false }, { "answer_id": "CYL-LINER-P04-005", "score": 0.4930502474308014, "sibling_score": 0.4930502474308014, "answer_score": 0.36201708763837814, "sibling_qid": "KOL-2024-02-1772-Q002", "sibling_text": "flame ring in 4 stoke engine purpose", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Anti-polishing / flame / fire ring — location, purpose, material", "cross_family": false } ] }, { "qid": "KOL-2026-10-4341-Q002", "text": "What is benzene ring ?", "family": "Electrical - Motors & Starters", "subtopic": "Commutator", "tid": "KOL-2026-10-4341", "tray": "new", "candidates": [ { "answer_id": "FQCC-583-A-001", "score": 0.44895464181900024, "sibling_score": 0.44895464181900024, "answer_score": null, "sibling_qid": "KOL-2026-01-1829-Q002", "sibling_text": "what are polyaromatic compounds where is it name of compound having this", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "CCAI — what it is, how it is calculated, and what it is really for", "cross_family": true }, { "answer_id": "OGEE-RING-001", "score": 0.42601844668388367, "sibling_score": 0.42601844668388367, "answer_score": 0.2924457848072052, "sibling_qid": "KOC-2024-09-1005-Q004", "sibling_text": "ooge ring diagram", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "The ogee ring: what it is, where it sits, its purpose, and how it's formed and connected", "cross_family": true }, { "answer_id": "SGRS-328-006", "score": 0.4020858407020569, "sibling_score": 0.4020858407020569, "answer_score": null, "sibling_qid": "MUM-2025-12-1225-Q012", "sibling_text": "what is latern ring", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "What is the function of the neck bush and lantern ring in the ram gland?", "cross_family": true } ] }, { "qid": "KOL-2026-10-4341-Q003", "text": "What is the purpose of benzene ring in the engine ?", "family": "2-Stroke - Components (Other)", "subtopic": "Piston Rings", "tid": "KOL-2026-10-4341", "tray": "new", "candidates": [ { "answer_id": "CYL-LINER-P04-005", "score": 0.5150604248046875, "sibling_score": 0.5150604248046875, "answer_score": 0.3841462641954422, "sibling_qid": "KOL-2024-02-1772-Q002", "sibling_text": "flame ring in 4 stoke engine purpose", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Anti-polishing / flame / fire ring — location, purpose, material", "cross_family": false }, { "answer_id": "PRING-CLR-A-002", "score": 0.4862612783908844, "sibling_score": 0.4862612783908844, "answer_score": null, "sibling_qid": "CHE-2026-03-0490-Q006", "sibling_text": "ring width of piston ring importance func 4b ext t mohan int po", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston-ring clearances and calibration — butt, axial, radial, wear limits", "cross_family": false }, { "answer_id": "PRING-B-004", "score": 0.48317021131515503, "sibling_score": 0.48317021131515503, "answer_score": null, "sibling_qid": "KOL-2018-01-1337-Q001", "sibling_text": "piston ring details of main engine", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Function, sealing, position & arrangement", "cross_family": false } ] }, { "qid": "KOL-2026-10-4341-Q004", "text": "ME C engines ?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "ME-GI / Dual Fuel", "tid": "KOL-2026-10-4341", "tray": "review", "candidates": [ { "answer_id": "MCC-MEB-P02-003", "score": 0.6778051257133484, "sibling_score": 0.6778051257133484, "answer_score": 0.4544260770082474, "sibling_qid": "MUM-2024-01-1070-Q003", "sibling_text": "me c engine what difference from mcc engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Conventional MC / MC-C versus electronic ME — the practical operating differences", "cross_family": false }, { "answer_id": "MEB-MEC-P03-001", "score": 0.6647299528121948, "sibling_score": 0.6647299528121948, "answer_score": null, "sibling_qid": "KOC-2024-04-1838-Q006", "sibling_text": "diff btwn me c and me b engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "ME-B vs ME-C — the core difference", "cross_family": false }, { "answer_id": "MCC-MEB-P02-002", "score": 0.6623491644859314, "sibling_score": 0.6623491644859314, "answer_score": null, "sibling_qid": "MUM-2026-06-3364-Q007", "sibling_text": "which engine mc c", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "MAN B&W nomenclature — and what MC, MC-C, ME-B, ME-C actually mean", "cross_family": false } ] }, { "qid": "KOL-2026-10-4341-Q005", "text": "What is sustainable corrosion ?", "family": "NDT & Material Testing", "subtopic": "Material Properties", "tid": "KOL-2026-10-4341", "tray": "new", "candidates": [ { "answer_id": "CC-294-001", "score": 0.6077592372894287, "sibling_score": 0.6077592372894287, "answer_score": null, "sibling_qid": "KOL-2026-01-1829-Q006", "sibling_text": "what is sustainable corrosion and what s its significance included cross questions for all", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What cold corrosion is, and what it attacks", "cross_family": true }, { "answer_id": "MATPROP-A-005", "score": 0.5540254712104797, "sibling_score": 0.5540254712104797, "answer_score": 0.4266783446073532, "sibling_qid": "MUM-2022-10-0061-Q016", "sibling_text": "what is crevice corrosion and stress corrosion", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Corrosion and degradation mechanisms", "cross_family": false }, { "answer_id": "CFF-P02-006", "score": 0.5504292845726013, "sibling_score": 0.5504292845726013, "answer_score": 0.40399647504091263, "sibling_qid": "MUM-2025-11-2866-Q009", "sibling_text": "what is corrosion fatigue examples remedies actions as 2e", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Corrosion fatigue", "cross_family": false } ] }, { "qid": "KOL-2026-10-4341-Q006", "text": "ME scrap down analysis, taking procedure, purpose, what data we will get ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "LO Test / Analysis", "tid": "KOL-2026-10-4341", "tray": "new", "candidates": [ { "answer_id": "SCAV-323-P02-006", "score": 0.4750846326351166, "sibling_score": 0.4750846326351166, "answer_score": 0.37485804259777067, "sibling_qid": "MUM-2026-06-3536-Q006", "sibling_text": "scavenge drain analysis", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Scavenge drain analysis and high scavenge-drain level", "cross_family": true }, { "answer_id": "LO-TEST-P01-003", "score": 0.4723277688026428, "sibling_score": 0.4723277688026428, "answer_score": 0.2953701585531235, "sibling_qid": "MUM-2022-08-2139-Q015", "sibling_text": "what all things you will find in lo analysis report", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Reading a shore analysis report: metals, FTIR and red flags", "cross_family": false }, { "answer_id": "LO-TEST-P01-002", "score": 0.45789116621017456, "sibling_score": 0.45789116621017456, "answer_score": null, "sibling_qid": "MUM-2022-08-2139-Q018", "sibling_text": "which all samples you send for lo analysis", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Taking the sample: where, how and how often", "cross_family": false } ] }, { "qid": "KOL-2026-10-4341-Q007", "text": "How to adjust the pick up sensor in ME details, how to adjust, after adjusting how to know that working good ?", "family": "Electrical - ICCP & Cathodic Protection", "subtopic": "ICCP", "tid": "KOL-2026-10-4341", "tray": "new", "candidates": [ { "answer_id": "AVR-EXC-G-004", "score": 0.5371426343917847, "sibling_score": 0.5371426343917847, "answer_score": null, "sibling_qid": "KOC-2024-05-1356-Q008", "sibling_text": "adjust the trimming regulator using screwdriver", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Inside the AVR: sensing, reference and control devices", "cross_family": true }, { "answer_id": "ANG-ENC-004", "score": 0.49820441007614136, "sibling_score": 0.49820441007614136, "answer_score": null, "sibling_qid": "KOL-2026-09-4296-Q004", "sibling_text": "encoder adjustments and calibration", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Checks, testing, calibration and maintenance", "cross_family": true }, { "answer_id": "WIDAS-SMK-004", "score": 0.49408096075057983, "sibling_score": 0.49408096075057983, "answer_score": null, "sibling_qid": "KOC-2025-05-1535-Q007", "sibling_text": "widas sensor type working how to test how to replace sensor when cargo hold filled", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Testing, maintenance and sensor replacement of WIDAS", "cross_family": true } ] }, { "qid": "KOL-2026-10-4341-Q008", "text": "How to calculate SCC ?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "SFOC", "tid": "KOL-2026-10-4341", "tray": "new", "candidates": [ { "answer_id": "SFOC-001", "score": 0.46827247738838196, "sibling_score": 0.46827247738838196, "answer_score": null, "sibling_qid": "KOC-2025-03-1031-Q002", "sibling_text": "sfoc calc", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What is SFOC? Definition, formula, unit — and how you get the corrected density", "cross_family": false }, { "answer_id": "CII-CALC-P03-001", "score": 0.2784884750843048, "sibling_score": null, "answer_score": 0.2784884750843048, "sibling_qid": "", "sibling_text": "calculating attained required cii formula unit reduction factor measurements attained cii m w where m fcj cfj and w capacity distance sailed one calendar year m mass of co in grams each fuel s mass consumed in the year its carbon factor cf summed over fuel types fuel data from the imo dcs marpol annex vi reg 27 g1 defines m in grams if you use tonnes of fuel with cf in t co t fuel the product is t", "sibling_family": "", "via": "answer_title", "answer_title": "Calculating attained & required CII — formula, unit, reduction factor, measurements", "cross_family": false }, { "answer_id": "SFOC-002", "score": 0.26446851938962934, "sibling_score": null, "answer_score": 0.26446851938962934, "sibling_qid": "", "sibling_text": "how do you calculate sfoc on board the step by step procedure conditions first steady load and rpm moderate sea no manoeuvring no soot blowing no transfers one fuel grade throughout log the start and stop flowmeter readings and the exact times use the minimum test duration in the maker s or ship s procedure extend it while conditions remain steady", "sibling_family": "", "via": "answer_title", "answer_title": "How do you calculate SFOC on board? The step-by-step procedure", "cross_family": false } ] }, { "qid": "KOL-2026-10-4341-Q009", "text": "Why is cast iron welding challenging ?", "family": "Workshop & Welding", "subtopic": "Cast Iron Welding", "tid": "KOL-2026-10-4341", "tray": "review", "candidates": [ { "answer_id": "WELD-B-001", "score": 0.7968205213546753, "sibling_score": 0.7968205213546753, "answer_score": 0.47785607576370237, "sibling_qid": "MUM-2026-07-3727-Q007", "sibling_text": "cast iron welding difficulties", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding & crack-repair of aluminium and cast iron, including metal stitching", "cross_family": false }, { "answer_id": "LH-ELEC-006", "score": 0.46887239515781404, "sibling_score": null, "answer_score": 0.46887239515781404, "sibling_qid": "", "sibling_text": "6 how would you approach a cast iron valve repair when the examiner probes welding and low hydrogen electrodes first response replace or fit a sound same size valve a welded cast iron repair is a stop gap not equal to new if welding cast iron not a plain mild steel low hydrogen rod the high carbon makes a hard brittle cracking weld", "sibling_family": "", "via": "answer_title", "answer_title": "6. How would you approach a cast-iron valve repair when the examiner probes welding and low-hydrogen electrodes?", "cross_family": false }, { "answer_id": "METAL-LOCK-001", "score": 0.4442502737045288, "sibling_score": null, "answer_score": 0.4442502737045288, "sibling_qid": "", "sibling_text": "what is metal locking stitching why use it materials benefits cold process zero heat applied at any stage for brittle cast iron and other castings where welding risks further cracking or a brittle heat affected zone", "sibling_family": "", "via": "answer_title", "answer_title": "What is metal locking / stitching, why use it, materials & benefits", "cross_family": false } ] }, { "qid": "KOL-2026-10-4341-Q010", "text": "Brittle happens why ?", "family": "NDT & Material Testing", "subtopic": "Ductile-Brittle Transition", "tid": "KOL-2026-10-4341", "tray": "new", "candidates": [ { "answer_id": "DBT-490-002", "score": 0.6076566576957703, "sibling_score": 0.6076566576957703, "answer_score": 0.38424597084522244, "sibling_qid": "MUM-2026-05-3207-Q002", "sibling_text": "brittle", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Explain brittle fracture", "cross_family": false }, { "answer_id": "CFF-P02-001", "score": 0.5598692297935486, "sibling_score": 0.5598692297935486, "answer_score": 0.2960251674056053, "sibling_qid": "MUM-2026-05-3227-Q012", "sibling_text": "and do brittle failure is a fatigue failure", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Fatigue failure — what it is and where it occurs", "cross_family": false }, { "answer_id": "DBT-490-001", "score": 0.4813142716884613, "sibling_score": 0.4813142716884613, "answer_score": 0.3061863034963608, "sibling_qid": "MUM-2023-07-1051-Q008", "sibling_text": "brittle nd ductile fracture", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Differentiate ductile fracture and brittle fracture", "cross_family": false } ] }, { "qid": "KOL-2026-10-4341-Q011", "text": "Why difficult to weld in brittle ?", "family": "Workshop & Welding", "subtopic": "Cast Iron Welding", "tid": "KOL-2026-10-4341", "tray": "new", "candidates": [ { "answer_id": "WELD-B-001", "score": 0.6162835955619812, "sibling_score": 0.6162835955619812, "answer_score": null, "sibling_qid": "MUM-2026-07-3727-Q007", "sibling_text": "cast iron welding difficulties", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding & crack-repair of aluminium and cast iron, including metal stitching", "cross_family": false }, { "answer_id": "WBS-C-001", "score": 0.548321545124054, "sibling_score": 0.548321545124054, "answer_score": null, "sibling_qid": "KOL-2018-01-3111-Q001", "sibling_text": "alumunium welding diffuclties and how are they dealt with", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding, brazing and soldering — what they are, the shipboard processes, and workshop safety", "cross_family": false }, { "answer_id": "WELD-DEF-001", "score": 0.544991672039032, "sibling_score": 0.544991672039032, "answer_score": 0.40304596871137616, "sibling_qid": "KOL-2022-08-4011-Q004", "sibling_text": "welding defects reasons", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Common welding defects and their causes", "cross_family": false } ] }, { "qid": "KOL-2026-10-4341-Q012", "text": "What is multi grade and mono grade oil ? details", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Quality / CCAI", "tid": "KOL-2026-10-4341", "tray": "new", "candidates": [ { "answer_id": "LO-TEST-P01-004", "score": 0.570583701133728, "sibling_score": 0.570583701133728, "answer_score": null, "sibling_qid": "KOL-2018-04-1860-Q007", "sibling_text": "monograde lub oil and multigrade lub oil difference how will you identify from label", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "TBN, BN, TAN, SAN and the SAE grade", "cross_family": true }, { "answer_id": "FQCC-583-A-003", "score": 0.5494978427886963, "sibling_score": 0.5494978427886963, "answer_score": 0.3728686213493347, "sibling_qid": "CHE-2026-08-3872-Q002", "sibling_text": "fuel oil grade", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel grades and marine fuel naming", "cross_family": false }, { "answer_id": "CYL-LUB-B-003", "score": 0.4855000376701355, "sibling_score": 0.4855000376701355, "answer_score": null, "sibling_qid": "CHE-2026-08-3872-Q003", "sibling_text": "cylinder oil grade", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "BN / TBN selection and sulphur matching (HSFO, VLSFO, SECA)", "cross_family": true } ] }, { "qid": "KOL-2026-10-4341-Q013", "text": "How is lacquer is formed in liner ? What do you mean by poor quality of fuel", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "KOL-2026-10-4341", "tray": "new", "candidates": [ { "answer_id": "CYL-LINER-P02-007", "score": 0.6491518616676331, "sibling_score": 0.6491518616676331, "answer_score": null, "sibling_qid": "KOL-2026-01-1829-Q001", "sibling_text": "what is lacquering which type of fuel oil causes lacquering", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L7 · T044-PART_02-G007High", "cross_family": false }, { "answer_id": "FQCC-583-A-001", "score": 0.5020236968994141, "sibling_score": 0.5020236968994141, "answer_score": null, "sibling_qid": "KOC-2026-03-1123-Q005", "sibling_text": "how do you define poor quality of a fuel i told high ccai value x which fuel grade high ccai told rmk 700", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "CCAI — what it is, how it is calculated, and what it is really for", "cross_family": true }, { "answer_id": "LO-TEST-P02-003", "score": 0.4635562300682068, "sibling_score": 0.4635562300682068, "answer_score": 0.383653861284256, "sibling_qid": "KOC-2024-10-1869-Q006", "sibling_text": "lacquer formation", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Abnormal LO condition: sump rise, colour, high temperature/pressure, lacquer, deterioration", "cross_family": true } ] }, { "qid": "KOL-2026-10-4341-Q014", "text": "What is hydrogen damage ?Types ?", "family": "Turbocharger", "subtopic": "TC Construction", "tid": "KOL-2026-10-4341", "tray": "new", "candidates": [ { "answer_id": "LH-ELEC-002", "score": 0.5629353523254395, "sibling_score": 0.5629353523254395, "answer_score": null, "sibling_qid": "CHE-2026-05-0555-Q010", "sibling_text": "hydrogen embrittlement caustic embrittlement", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "2. Why are low-hydrogen electrodes used, and what hydrogen defect do they prevent?", "cross_family": true }, { "answer_id": "DS-BASIC-P01-001", "score": 0.5299674272537231, "sibling_score": 0.5299674272537231, "answer_score": null, "sibling_qid": "KOL-2023-03-0728-Q003", "sibling_text": "damage stability how many types", "sibling_family": "", "via": "sibling", "answer_title": "Damage stability: definition, meaning and oral overview", "cross_family": false }, { "answer_id": "EFBF-330-003", "score": 0.5236420035362244, "sibling_score": 0.5236420035362244, "answer_score": 0.3824217140674591, "sibling_qid": "MUM-2024-02-0165-Q002", "sibling_text": "green hydrogen and blue hydrogen", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Green hydrogen and blue hydrogen", "cross_family": true } ] }, { "qid": "KOL-2026-10-4341-Q015", "text": "Factor to choose honing machine ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "RMS Value", "tid": "KOL-2026-10-4341", "tray": "new", "candidates": [ { "answer_id": "CYL-LINER-P02-001", "score": 0.49138861894607544, "sibling_score": 0.49138861894607544, "answer_score": 0.3987793803215027, "sibling_qid": "KOL-2021-08-3446-Q002", "sibling_text": "how honing is done in liner", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L1 · T044-PART_02-G001High", "cross_family": true }, { "answer_id": "CYL-LINER-P02-008", "score": 0.48341071605682373, "sibling_score": 0.48341071605682373, "answer_score": null, "sibling_qid": "CHE-2026-09-3909-Q003", "sibling_text": "liner honing", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L8 · T044-PART_02-G008High", "cross_family": true }, { "answer_id": "XFMR-THY-C-001", "score": 0.4717114567756653, "sibling_score": 0.4717114567756653, "answer_score": null, "sibling_qid": "KOL-2018-01-2173-Q002", "sibling_text": "3 factors on which hysteresis loss depends", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Hysteresis loss in a transformer — cause, the factors it depends on, and how to cut it", "cross_family": false } ] }, { "qid": "KOL-2026-10-4342-Q001", "text": "Sulzer &BW Liner difference ?", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "KOL-2026-10-4342", "tray": "new", "candidates": [ { "answer_id": "FCL-P03-003", "score": 0.5428197979927063, "sibling_score": 0.5428197979927063, "answer_score": null, "sibling_qid": "MUM-2026-06-3357-Q002", "sibling_text": "sulzer man bw fuel pumps construction and operational difference", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Sulzer / RTA fuel pump timing and lead", "cross_family": false }, { "answer_id": "CXH-BRG-FINAL-1-005", "score": 0.5081397294998169, "sibling_score": 0.5081397294998169, "answer_score": null, "sibling_qid": "KOL-2018-10-1426-Q002", "sibling_text": "cross head lubrication diffrence between sulzer and man b w", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead lubrication: why it is uniquely difficult, MAN vs Sulzer, improvements", "cross_family": true }, { "answer_id": "XHD-BRG-B-006", "score": 0.4754447042942047, "sibling_score": 0.4754447042942047, "answer_score": 0.40163221657276155, "sibling_qid": "KOL-2021-11-1642-Q003", "sibling_text": "difference between cross head bearing of man and sulzer", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "MAN B&W versus Sulzer / Wärtsilä crosshead bearing and lubrication", "cross_family": true } ] }, { "qid": "KOL-2026-10-4342-Q002", "text": "Jacket cooling difference for Sulzer and MAN B&W?", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "KOL-2026-10-4342", "tray": "new", "candidates": [ { "answer_id": "FCL-P03-003", "score": 0.5630216002464294, "sibling_score": 0.5630216002464294, "answer_score": null, "sibling_qid": "MUM-2026-06-3357-Q002", "sibling_text": "sulzer man bw fuel pumps construction and operational difference", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Sulzer / RTA fuel pump timing and lead", "cross_family": false }, { "answer_id": "CXH-BRG-FINAL-1-005", "score": 0.5390050411224365, "sibling_score": 0.5390050411224365, "answer_score": null, "sibling_qid": "KOL-2018-10-1426-Q002", "sibling_text": "cross head lubrication diffrence between sulzer and man b w", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead lubrication: why it is uniquely difficult, MAN vs Sulzer, improvements", "cross_family": true }, { "answer_id": "CPP-ATC-05", "score": 0.5131888389587402, "sibling_score": 0.5131888389587402, "answer_score": 0.4203234136104584, "sibling_qid": "KOL-2021-01-1571-Q002", "sibling_text": "difn betn sulzer and man b w mc engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "MAN B&W versus Sulzer low-speed engines — constructional comparison", "cross_family": true } ] }, { "qid": "KOL-2026-10-4342-Q003", "text": "Explain Sulzer bore cooling ?", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "KOL-2026-10-4342", "tray": "new", "candidates": [ { "answer_id": "PC-TP-003", "score": 0.535814642906189, "sibling_score": 0.535814642906189, "answer_score": null, "sibling_qid": "KOC-2023-07-0925-Q009", "sibling_text": "how piston crown cooling taking place lube circuit from telescopic pipe where it return back", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston crown cooling oil circuit and where the oil returns", "cross_family": false }, { "answer_id": "BLR-STM-PR-B54-004", "score": 0.5084209442138672, "sibling_score": 0.5084209442138672, "answer_score": null, "sibling_qid": "KOL-2017-03-1281-Q009", "sibling_text": "pressure and steam flow rate shaft tunnel intermediate bearings how is it cooled", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Steam pressure and steam flow rate — what each one actually tells you", "cross_family": true }, { "answer_id": "HYDRO-LUB-001", "score": 0.497165709733963, "sibling_score": 0.497165709733963, "answer_score": null, "sibling_qid": "KOL-2017-01-1262-Q002", "sibling_text": "details about different types of lubrication 5 advancements in bearing designs 6 fo service tank drain valve clogged actions m e running full load cannot stop m e 7 t c sleeve type brgs how axial thrust is taken by the bearings why overflow tank for lubrication reqd 8 lo cooler for m e shell tube type only one on board pin hole in water side end cover actions cannot stop m e and only one cooler on board 9 water mist catcher details where does drained water go where do you discharge which type of pump 10 ship transiting in calm m e thrust bearing temp high lubrication and clearance of thrust pad is ok reason", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "1. Lubrication, tribology & the types of lubrication", "cross_family": true } ] }, { "qid": "KOL-2026-10-4342-Q004", "text": "CPP propeller working principle detailed ?", "family": "General Marine Engineering", "subtopic": "Shafting / Propeller / CPP", "tid": "KOL-2026-10-4342", "tray": "review", "candidates": [ { "answer_id": "SHAFT-CPP-003", "score": 0.7747876048088074, "sibling_score": 0.7747876048088074, "answer_score": null, "sibling_qid": "MUM-2026-01-1243-Q004", "sibling_text": "cpp propeller full construction and working principle", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "3. CPP — working, construction, oil channel, feedback & emergency", "cross_family": false }, { "answer_id": "SHAFT-CPP-005", "score": 0.6904061436653137, "sibling_score": 0.6904061436653137, "answer_score": null, "sibling_qid": "KOC-2025-04-0589-Q004", "sibling_text": "propeller design criteria how propeller working", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "5. Propeller types, design criteria & latest developments", "cross_family": false }, { "answer_id": "SHAFT-CPP-002", "score": 0.6327258944511414, "sibling_score": 0.6327258944511414, "answer_score": null, "sibling_qid": "KOL-2024-08-0859-Q004", "sibling_text": "propeller pitch calculation", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "2. Propeller slip, pitch & pitch measurement", "cross_family": false } ] }, { "qid": "KOL-2026-10-4342-Q005", "text": "Function of unloader in refrigerator and how ?", "family": "Refrigeration & AC", "subtopic": "Capacity Control / Unloader", "tid": "KOL-2026-10-4342", "tray": "review", "candidates": [ { "answer_id": "CAP-CTRL-002", "score": 0.711852490901947, "sibling_score": 0.711852490901947, "answer_score": 0.3856353282928467, "sibling_qid": "MUM-2026-05-3277-Q008", "sibling_text": "refrigeration unloader how it works", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "CG-002 · How the cylinder-unloader mechanism works", "cross_family": false }, { "answer_id": "UNL-330-002", "score": 0.6252580881118774, "sibling_score": 0.6252580881118774, "answer_score": 0.40352555364370346, "sibling_qid": "KOC-2026-09-2193-Q003", "sibling_text": "reefer unloader working", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Explain the working of the main air compressor unloader.", "cross_family": true }, { "answer_id": "CAP-CTRL-003", "score": 0.4492295265197754, "sibling_score": null, "answer_score": 0.4492295265197754, "sibling_qid": "", "sibling_text": "cg 003 ac compressor vs refrigeration compressor unloaders the real difference mechanism essentially identical cylinder unloading by suction valve lift in both reefer provision plant several rooms different temps per room solenoid tev warm rooms on back pressure evaporator pressure regulators coarse steps on off", "sibling_family": "", "via": "answer_title", "answer_title": "CG-003 · AC-compressor vs refrigeration-compressor unloaders — the real difference", "cross_family": false } ] }, { "qid": "KOL-2026-10-4342-Q006", "text": "Define semi built crankshaft. Why semi built? Purpose ?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft Material", "tid": "KOL-2026-10-4342", "tray": "review", "candidates": [ { "answer_id": "CRANK-217-001", "score": 0.7172887325286865, "sibling_score": 0.7172887325286865, "answer_score": 0.535789692401886, "sibling_qid": "MUM-2026-01-1240-Q003", "sibling_text": "crankshaft type explain semi built", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankshaft types and how the type is identified", "cross_family": false }, { "answer_id": "CRANK-217-002", "score": 0.6570534110069275, "sibling_score": 0.6570534110069275, "answer_score": 0.521921145915985, "sibling_qid": "MUM-2026-05-3163-Q008", "sibling_text": "how is semi built crankshaft constructed some cross questions like advantages over fully built and where these type of crankshaft is seen", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Semi-built crankshaft: construction, fitting and comparison", "cross_family": false }, { "answer_id": "CRANK-217-004", "score": 0.5946420431137085, "sibling_score": 0.5946420431137085, "answer_score": null, "sibling_qid": "MUM-2026-02-2570-Q003", "sibling_text": "semi built crank shaft slippage", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankshaft slippage, tell-tale marks and action if found", "cross_family": false } ] }, { "qid": "KOL-2026-10-4342-Q007", "text": "Assembly of crankshaft Explain each component ?", "family": "Electrical - Generator & Alternator", "subtopic": "Shaft Generator", "tid": "KOL-2026-10-4342", "tray": "review", "candidates": [ { "answer_id": "CRK-DEFL-001", "score": 0.6819384098052979, "sibling_score": 0.6819384098052979, "answer_score": null, "sibling_qid": "CHE-2026-05-0644-Q006", "sibling_text": "parts of crankshaft explain what stresses are acting on each part of crankshaft and why", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Purpose, timing and scope of crankshaft deflection", "cross_family": true }, { "answer_id": "CRANK-217-001", "score": 0.6733256578445435, "sibling_score": 0.6733256578445435, "answer_score": 0.5405070126056671, "sibling_qid": "MUM-2026-05-3266-Q006", "sibling_text": "material of crankshaft", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankshaft types and how the type is identified", "cross_family": true }, { "answer_id": "SHAFT-GEN-001", "score": 0.6582460999488831, "sibling_score": 0.6582460999488831, "answer_score": null, "sibling_qid": "KOC-2025-05-1533-Q009", "sibling_text": "shaft generator explain each component and how it works", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Shaft generator — working, arrangement, components and function", "cross_family": false } ] }, { "qid": "KOL-2026-10-4343-Q001", "text": "Motor and MEP Introduction Last vessel and Engine Written Status ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2026-10-4343", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.6675310134887695, "sibling_score": 0.6675310134887695, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q001", "sibling_text": "type of vessel engine make written and oral status", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ALT-GEN-P02-001", "score": 0.6573190689086914, "sibling_score": 0.6573190689086914, "answer_score": null, "sibling_qid": "MUM-2026-09-3974-Q008", "sibling_text": "define last vessel power generation system", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Alternator/generator specifications, ratings and ship electrical supply details", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.6458715796470642, "sibling_score": 0.6458715796470642, "answer_score": null, "sibling_qid": "MUM-2026-03-2606-Q001", "sibling_text": "type of engine and ship major maintenance done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false } ] }, { "qid": "KOL-2026-10-4343-Q002", "text": "Phosphate hideout ?", "family": "Boilers - Safety & Survey", "subtopic": "Water Test (Chloride / pH / Phosphate)", "tid": "KOL-2026-10-4343", "tray": "review", "candidates": [ { "answer_id": "BWT-B-002", "score": 0.8142005801200867, "sibling_score": 0.8142005801200867, "answer_score": 0.3922113820910454, "sibling_qid": "MUM-2026-05-3138-Q006", "sibling_text": "phosphate hide out", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Why is phosphate tested and maintained in boiler water, and what does phosphate hideout indicate?", "cross_family": false }, { "answer_id": "HT-A-002", "score": 0.7558398246765137, "sibling_score": 0.7558398246765137, "answer_score": null, "sibling_qid": "KOL-2026-06-0002-Q008", "sibling_text": "what is phosphate hide out", "sibling_family": "", "via": "sibling", "answer_title": "Annealing: process, cooling control, and the reused copper washer", "cross_family": false }, { "answer_id": "BLR-CHEM-007", "score": 0.40031424462795256, "sibling_score": null, "answer_score": 0.40031424462795256, "sibling_qid": "", "sibling_text": "7 phosphate reserve and reserve alkalinity phosphate reserve maintained excess po4 instant precipitation of in leaking hardness as soft sludge why reserve not exact dose margin for a hardness surge phosphate always available", "sibling_family": "", "via": "answer_title", "answer_title": "7. Phosphate reserve and reserve alkalinity", "cross_family": false } ] }, { "qid": "KOL-2026-10-4343-Q003", "text": "A frame damage ,mounting and damage reason ?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Bedplate / A-Frame", "tid": "KOL-2026-10-4343", "tray": "review", "candidates": [ { "answer_id": "FWFB-P02-008", "score": 0.6782717108726501, "sibling_score": 0.6782717108726501, "answer_score": null, "sibling_qid": "MUM-2026-05-3081-Q001", "sibling_text": "a frame crack reason", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Forces and stresses on transverse girders; action for cracks", "cross_family": false }, { "answer_id": "SHELL-PLT-A-001", "score": 0.5317128300666809, "sibling_score": 0.5317128300666809, "answer_score": null, "sibling_qid": "KOC-2023-03-0152-Q016", "sibling_text": "damage to shell plate how to identify the plates told abt shell expansion plan frame number but was not satisfied with ans", "sibling_family": "", "via": "sibling", "answer_title": "The shell expansion plan, and how you identify a plate", "cross_family": false }, { "answer_id": "CRKPIN-P02-003", "score": 0.513872504234314, "sibling_score": 0.513872504234314, "answer_score": null, "sibling_qid": "KOL-2021-05-3405-Q001", "sibling_text": "crank pin damaged beyond repair action", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankpin or bearing beyond repair / no spare — casualty action", "cross_family": false } ] }, { "qid": "KOL-2026-10-4343-Q004", "text": "Emergency manoeuvring of ME engine ?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Engine Theory / Performance", "tid": "KOL-2026-10-4343", "tray": "review", "candidates": [ { "answer_id": "EICU-MAN-P01-002", "score": 0.7123501896858215, "sibling_score": 0.7123501896858215, "answer_score": null, "sibling_qid": "MUM-2026-05-3247-Q003", "sibling_text": "manoeuvring of me engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "ME / ME-C / ME-B manoeuvring system — diagram and explanation", "cross_family": false }, { "answer_id": "EICU-MAN-P02-001", "score": 0.6420174241065979, "sibling_score": 0.6420174241065979, "answer_score": null, "sibling_qid": "KOC-2025-01-1024-Q001", "sibling_text": "maneuvering of mcc engine", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "MC / MC-C conventional manoeuvring system — handle, microswitches, block valves, reversing servomotor", "cross_family": true }, { "answer_id": "EICU-MAN-P01-003", "score": 0.6301999092102051, "sibling_score": 0.6301999092102051, "answer_score": 0.5401386857032776, "sibling_qid": "MUM-2026-01-2912-Q003", "sibling_text": "emergency manoeuring for me", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Main-engine manoeuvring sequence and emergency manoeuvring", "cross_family": true } ] }, { "qid": "KOL-2026-10-4343-Q005", "text": "Electronic governor component ? not accepting pickup sensors, ecu etc", "family": "Automation & Controls", "subtopic": "Governor (Mechanical / Electronic)", "tid": "KOL-2026-10-4343", "tray": "review", "candidates": [ { "answer_id": "GOV-P02-002", "score": 0.710663914680481, "sibling_score": 0.710663914680481, "answer_score": 0.5850825726985931, "sibling_qid": "KOL-2026-05-4109-Q003", "sibling_text": "components of electronic governor", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Electronic governor — components & parts", "cross_family": false }, { "answer_id": "GOV-P02-001", "score": 0.6879664063453674, "sibling_score": 0.6879664063453674, "answer_score": 0.5207197010517121, "sibling_qid": "KOC-2023-09-1283-Q008", "sibling_text": "me electronic governor working", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Electronic governor — draw, block diagram & working", "cross_family": false }, { "answer_id": "GOV-P02-003", "score": 0.6828686594963074, "sibling_score": 0.6828686594963074, "answer_score": null, "sibling_qid": "KOC-2024-04-1343-Q012", "sibling_text": "input signals to the controller of electronic governor", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Input signals, feedback & the load signal", "cross_family": false } ] }, { "qid": "KOL-2026-10-4343-Q006", "text": "After finishing drydock check done on shipside ? and then sudden change his question to before ", "family": "Drydock & Underwater Surveys", "subtopic": "Drydock / Hull Repair / Sea Chest", "tid": "KOL-2026-10-4343", "tray": "review", "candidates": [ { "answer_id": "DUS-P1-01", "score": 0.7368103861808777, "sibling_score": 0.7368103861808777, "answer_score": null, "sibling_qid": "KOL-2019-03-3222-Q004", "sibling_text": "what check after dry dock when ship is going", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Drydock preparation as 2E — full workflow from office confirmation to entry", "cross_family": false }, { "answer_id": "DDI-003", "score": 0.7182919979095459, "sibling_score": 0.7182919979095459, "answer_score": 0.5008854746818542, "sibling_qid": "MUM-2022-11-2719-Q010", "sibling_text": "after drydock as 2ewhat all things to cheek in propeller rudden sit before flooding few more result fail", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Before flooding the dock, what checks do you carry out — in the engine room, and on the propeller, rudder and stern tube?", "cross_family": false }, { "answer_id": "STERN-TUBE-TAIL-SHAFT-004", "score": 0.7129705548286438, "sibling_score": 0.7129705548286438, "answer_score": null, "sibling_qid": "KOC-2025-07-1924-Q011", "sibling_text": "drydock checks as 2e as soon as dock is empty what checks on rudder part", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOL-2026-10-4343-Q007", "text": "Sluggish effect, refer compressor ,accumulator parts ,working ?", "family": "Refrigeration & AC", "subtopic": "Capacity Control / Unloader", "tid": "KOL-2026-10-4343", "tray": "review", "candidates": [ { "answer_id": "CAP-CTRL-002", "score": 0.6505234837532043, "sibling_score": 0.6505234837532043, "answer_score": null, "sibling_qid": "KOL-2017-01-1267-Q002", "sibling_text": "refer compressor unloader working", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "CG-002 · How the cylinder-unloader mechanism works", "cross_family": false }, { "answer_id": "CCSC-314-001", "score": 0.6419535875320435, "sibling_score": 0.6419535875320435, "answer_score": null, "sibling_qid": "KOC-2024-08-1001-Q008", "sibling_text": "refer compressor short cycling reasoning", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Refrigeration compressor short cycling — meaning, causes and corrective action", "cross_family": false }, { "answer_id": "REF-CYC-002", "score": 0.6395498514175415, "sibling_score": 0.6395498514175415, "answer_score": null, "sibling_qid": "KOL-2026-07-4281-Q006", "sibling_text": "accumulator in fridge compressor", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "2. Refrigeration plant components and their control functions", "cross_family": false } ] }, { "qid": "KOL-2026-10-4343-Q008", "text": "Flake stress in main engine ?", "family": "Turbocharger", "subtopic": "Turbocharger Construction & Surging", "tid": "KOL-2026-10-4343", "tray": "new", "candidates": [ { "answer_id": "CREEP-FAT-P01-001", "score": 0.4741867184638977, "sibling_score": 0.4741867184638977, "answer_score": null, "sibling_qid": "KOL-2023-01-1721-Q001", "sibling_text": "creep in main engine", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "What is creep, and where does it occur in a marine engine?", "cross_family": true }, { "answer_id": "ENG-DERATE-002", "score": 0.4600079655647278, "sibling_score": 0.4600079655647278, "answer_score": null, "sibling_qid": "MUM-2026-06-3451-Q012", "sibling_text": "derating of the main engine", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "How is a main engine temporarily derated and later restored, without propeller changes?", "cross_family": false }, { "answer_id": "TC-SURGE-003", "score": 0.4568626284599304, "sibling_score": 0.4568626284599304, "answer_score": null, "sibling_qid": "MUM-2025-12-2879-Q007", "sibling_text": "main engine t c surging and what will be action as second 2 e", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharger surging on your watch — causes, and what immediate and remedial action do you take?", "cross_family": false } ] }, { "qid": "KOL-2026-10-4343-Q009", "text": "Ductile to brittle ?", "family": "NDT & Material Testing", "subtopic": "Ductile-Brittle Transition", "tid": "KOL-2026-10-4343", "tray": "review", "candidates": [ { "answer_id": "DBT-490-003", "score": 0.8057160973548889, "sibling_score": 0.8057160973548889, "answer_score": 0.5413368880748749, "sibling_qid": "MUM-2026-06-3367-Q009", "sibling_text": "ductile to brittle", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Ductile-to-brittle transition and transition temperature", "cross_family": false }, { "answer_id": "DBT-490-001", "score": 0.717424750328064, "sibling_score": 0.717424750328064, "answer_score": 0.5151167750358582, "sibling_qid": "MUM-2023-07-1051-Q008", "sibling_text": "brittle nd ductile fracture", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Differentiate ductile fracture and brittle fracture", "cross_family": false }, { "answer_id": "DBT-490-002", "score": 0.6920356154441833, "sibling_score": 0.6920356154441833, "answer_score": 0.4642428755760193, "sibling_qid": "MUM-2026-05-3207-Q002", "sibling_text": "brittle", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Explain brittle fracture", "cross_family": false } ] }, { "qid": "KOL-2026-10-4343-Q010", "text": "Painting on shell plating check ?", "family": "Drydock & Underwater Surveys", "subtopic": "Drydock / Hull Repair / Sea Chest", "tid": "KOL-2026-10-4343", "tray": "new", "candidates": [ { "answer_id": "PW-327-003", "score": 0.6315562725067139, "sibling_score": 0.6315562725067139, "answer_score": null, "sibling_qid": "KOC-2026-05-2137-Q004", "sibling_text": "check on welds in shell plating during drydock", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "3. Shell / deck plate repair and renewal in dry dock (class context)", "cross_family": false }, { "answer_id": "HULL-PAINT-001", "score": 0.6054069399833679, "sibling_score": 0.6054069399833679, "answer_score": 0.41233259439468384, "sibling_qid": "CHE-2023-04-0390-Q001", "sibling_text": "hull surface preparation before painting", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Preparing the hull surface before painting in dry dock — cleanliness standard and methods", "cross_family": false }, { "answer_id": "SHELL-PLT-A-001", "score": 0.5796332359313965, "sibling_score": 0.5796332359313965, "answer_score": 0.40268997848033905, "sibling_qid": "KOC-2026-09-2199-Q005", "sibling_text": "how to identify damaged plating from shell expansion plan", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "The shell expansion plan, and how you identify a plate", "cross_family": true } ] }, { "qid": "KOL-2026-10-4344-Q001", "text": "What is radius of gyration ?", "family": "SOLAS", "subtopic": "Static / Dynamic Stability", "tid": "KOL-2026-10-4344", "tray": "review", "candidates": [ { "answer_id": "BK-001", "score": 0.668548583984375, "sibling_score": 0.668548583984375, "answer_score": null, "sibling_qid": "KOC-2026-03-0878-Q015", "sibling_text": "raduis of gyration", "sibling_family": "", "via": "sibling", "answer_title": "What is a bilge keel and what is its purpose?", "cross_family": false }, { "answer_id": "BK-004", "score": 0.6333204507827759, "sibling_score": 0.6333204507827759, "answer_score": null, "sibling_qid": "KOC-2025-07-0633-Q019", "sibling_text": "how its connected radius of gyration", "sibling_family": "", "via": "sibling", "answer_title": "How is a bilge keel attached to the hull, and how is hull cracking or rupture controlled?", "cross_family": false }, { "answer_id": "BK-002", "score": 0.5563737154006958, "sibling_score": 0.5563737154006958, "answer_score": 0.3600216627120972, "sibling_qid": "KOC-2026-04-0894-Q004", "sibling_text": "period of roll radius of gyration", "sibling_family": "", "via": "sibling", "answer_title": "How does a bilge keel reduce rolling, and how does it relate to roll period and radius of gyration?", "cross_family": false } ] }, { "qid": "KOL-2026-10-4344-Q002", "text": "Factors at which radius of gyration depends and formula?", "family": "SOLAS", "subtopic": "Static / Dynamic Stability", "tid": "KOL-2026-10-4344", "tray": "new", "candidates": [ { "answer_id": "BK-004", "score": 0.6453806161880493, "sibling_score": 0.6453806161880493, "answer_score": null, "sibling_qid": "KOC-2025-07-0633-Q019", "sibling_text": "how its connected radius of gyration", "sibling_family": "", "via": "sibling", "answer_title": "How is a bilge keel attached to the hull, and how is hull cracking or rupture controlled?", "cross_family": false }, { "answer_id": "BK-001", "score": 0.630750298500061, "sibling_score": 0.630750298500061, "answer_score": null, "sibling_qid": "KOC-2026-03-0878-Q015", "sibling_text": "raduis of gyration", "sibling_family": "", "via": "sibling", "answer_title": "What is a bilge keel and what is its purpose?", "cross_family": false }, { "answer_id": "BK-002", "score": 0.5944726467132568, "sibling_score": 0.5944726467132568, "answer_score": null, "sibling_qid": "KOC-2026-03-0882-Q005", "sibling_text": "radius of gyration and time period of roll amplitude of roll", "sibling_family": "", "via": "sibling", "answer_title": "How does a bilge keel reduce rolling, and how does it relate to roll period and radius of gyration?", "cross_family": false } ] }, { "qid": "KOL-2026-10-4344-Q003", "text": "Relation effect of GM while ballasting tank ? cross ques", "family": "Electrical - Batteries & DC Systems", "subtopic": "Battery", "tid": "KOL-2026-10-4344", "tray": "new", "candidates": [ { "answer_id": "GM-META-005", "score": 0.5737882852554321, "sibling_score": 0.5737882852554321, "answer_score": null, "sibling_qid": "CHE-2026-04-0163-Q004", "sibling_text": "why gm is always high in tankers", "sibling_family": "", "via": "sibling", "answer_title": "The metacentre and metacentric height", "cross_family": false }, { "answer_id": "GM-META-006", "score": 0.5606900453567505, "sibling_score": 0.5606900453567505, "answer_score": 0.4518286377191543, "sibling_qid": "MUM-2023-07-0112-Q009", "sibling_text": "relation between gm and gz", "sibling_family": "", "via": "sibling", "answer_title": "GM and the righting lever GZ", "cross_family": false }, { "answer_id": "GM-META-004", "score": 0.5285081267356873, "sibling_score": 0.5285081267356873, "answer_score": null, "sibling_qid": "MUM-2026-08-3836-Q005", "sibling_text": "what is gm and its use in stability of ship", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Negative GM, angle of loll and recovery", "cross_family": true } ] }, { "qid": "KOL-2026-10-4344-Q004", "text": "In bulk carrier how CO2 system works? How to test? Where extractor fan is located?", "family": "SOLAS - Fire Safety", "subtopic": "CO2 System", "tid": "KOL-2026-10-4344", "tray": "review", "candidates": [ { "answer_id": "CO2-SYS-005", "score": 0.6612109541893005, "sibling_score": 0.6612109541893005, "answer_score": null, "sibling_qid": "KOL-2017-05-0089-Q006", "sibling_text": "co2 room ventilation system wanted to hear where the suction of the exhaust fan is placed and why", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 system safeties, CO2-room requirements, alarms and ventilation", "cross_family": false }, { "answer_id": "CO2-SYS-001", "score": 0.6393734812736511, "sibling_score": 0.6393734812736511, "answer_score": null, "sibling_qid": "KOL-2017-08-0108-Q004", "sibling_text": "fixed co2 system operation for cargo hold and fixed co2 system and how air blow and where is fitting given", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 release procedure, shutdowns, re-entry and casualty-use decisions", "cross_family": false }, { "answer_id": "CO2-SYS-002", "score": 0.6295364499092102, "sibling_score": 0.6295364499092102, "answer_score": null, "sibling_qid": "KOC-2024-01-0269-Q004", "sibling_text": "co2 room inspection as 2nd engg weekly taking a normal round what all checks to do he asked specifically what will be checked in the exhaust fan suction", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 maintenance, inspection, testing and survey routines", "cross_family": false } ] }, { "qid": "KOL-2026-10-4344-Q005", "text": "Long term maintenance of CO2 as 2nd engr?. (2 yearly,5yrs,10yrs,15 yrs).", "family": "SOLAS - Fire Safety", "subtopic": "CO2 System", "tid": "KOL-2026-10-4344", "tray": "review", "candidates": [ { "answer_id": "CO2-SYS-002", "score": 0.7704014778137207, "sibling_score": 0.7704014778137207, "answer_score": 0.4344926506280899, "sibling_qid": "KOC-2025-06-0615-Q009", "sibling_text": "co2 2 5 10 yrly maintenance", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 maintenance, inspection, testing and survey routines", "cross_family": false }, { "answer_id": "CO2-SYS-P06-001", "score": 0.4341733157634735, "sibling_score": null, "answer_score": 0.4341733157634735, "sibling_qid": "", "sibling_text": "co2 fixed system full maintenance and inspection schedule weekly to 10 yearly and the revised cylinder test regime controlling sources in order solas ii 2 and fss code chapter 5 statutory msc 1 circ 1318 rev 1 imo fixed co2 maintenance guidance 25 may 2021 in india dgs engineering circular 01 of 2022 implements it maker s manual and ship sms pms on top weekly indian dgs mmd layer msc 1 circ 1432 f", "sibling_family": "", "via": "answer_title", "answer_title": "CO2 fixed system — full maintenance and inspection schedule (weekly to 10-yearly, and the revised cylinder-test regime)", "cross_family": false }, { "answer_id": "CSAS-SURV-005", "score": 0.3824285790324211, "sibling_score": null, "answer_score": 0.3824285790324211, "sibling_qid": "", "sibling_text": "continuous survey of machinery csm purpose spread the machinery special survey over the 5 year cycle avoid one big shutdown items split into 5 groups 20 per year interval per item 5 years", "sibling_family": "", "via": "answer_title", "answer_title": "Continuous Survey of Machinery (CSM)", "cross_family": false } ] }, { "qid": "KOL-2026-10-4344-Q006", "text": "Annual survey of CO2 what all things. Who does shore people or ship staffs?", "family": "Surveys - Statutory", "subtopic": "Scope of Survey", "tid": "KOL-2026-10-4344", "tray": "new", "candidates": [ { "answer_id": "SURV-GEN-001", "score": 0.5876550078392029, "sibling_score": 0.5876550078392029, "answer_score": 0.40964813977479936, "sibling_qid": "KOL-2021-12-0580-Q003", "sibling_text": "all surveys on ship", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What statutory surveys are carried out on board?", "cross_family": false }, { "answer_id": "CO2-SYS-002", "score": 0.5644736289978027, "sibling_score": 0.5644736289978027, "answer_score": null, "sibling_qid": "CHE-2026-04-0144-Q009", "sibling_text": "co2 annual survey", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 maintenance, inspection, testing and survey routines", "cross_family": true }, { "answer_id": "SURV-GEN-004", "score": 0.5433217883110046, "sibling_score": 0.5433217883110046, "answer_score": null, "sibling_qid": "KOL-2021-02-0473-Q002", "sibling_text": "marpol additional surveys", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Additional / non-periodical survey", "cross_family": false } ] }, { "qid": "KOL-2026-10-4344-Q007", "text": "SEEMP PART 2 ? ", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "SEEMP I/II/III", "tid": "KOL-2026-10-4344", "tray": "review", "candidates": [ { "answer_id": "AV6-P05-01", "score": 0.6754425764083862, "sibling_score": 0.6754425764083862, "answer_score": null, "sibling_qid": "KOL-2026-05-4092-Q004", "sibling_text": "seemp part 2", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP Part II — IMO DCS plan and contents", "cross_family": false }, { "answer_id": "A6-NSEC-005", "score": 0.6233161687850952, "sibling_score": 0.6233161687850952, "answer_score": 0.23725853413343428, "sibling_qid": "KOC-2022-02-0061-Q005", "sibling_text": "seemp seemp2", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP — Part I, II & III", "cross_family": false }, { "answer_id": "EEDI-C-003", "score": 0.26435890793800354, "sibling_score": null, "answer_score": 0.26435890793800354, "sibling_qid": "", "sibling_text": "how eedi sits against eexi cii and seemp", "sibling_family": "", "via": "answer_title", "answer_title": "How EEDI sits against EEXI, CII and SEEMP", "cross_family": false } ] }, { "qid": "KOL-2026-10-4344-Q008", "text": "ESP survey full in detail? What is close up survey? what is overall survey. ", "family": "IMO Structure & Conventions", "subtopic": "SOLAS Chapters", "tid": "KOL-2026-10-4344", "tray": "new", "candidates": [ { "answer_id": "ESP-B-002", "score": 0.6109558939933777, "sibling_score": 0.6109558939933777, "answer_score": null, "sibling_qid": "MUM-2026-05-3257-Q009", "sibling_text": "close up survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Close-up survey, thickness gauging, substantial corrosion & renewal criteria", "cross_family": true }, { "answer_id": "ESP-A-001", "score": 0.6035627126693726, "sibling_score": 0.6035627126693726, "answer_score": null, "sibling_qid": "MUM-2026-09-3941-Q009", "sibling_text": "esp survey in detail", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the Enhanced Survey Programme (ESP), and what is its purpose?", "cross_family": true }, { "answer_id": "MSB-ESB-B-004", "score": 0.3706142023205757, "sibling_score": null, "answer_score": 0.3706142023205757, "sibling_qid": "", "sibling_text": "msb survey what you demonstrate to the surveyor", "sibling_family": "", "via": "answer_title", "answer_title": "MSB survey — what you demonstrate to the surveyor", "cross_family": false } ] }, { "qid": "KOL-2026-10-4344-Q009", "text": "ESP comes under which SOLAS chapter. What all checks in ESP? ", "family": "IMO Structure & Conventions", "subtopic": "SOLAS Chapters", "tid": "KOL-2026-10-4344", "tray": "review", "candidates": [ { "answer_id": "ESP-B-001", "score": 0.6554116606712341, "sibling_score": 0.6554116606712341, "answer_score": 0.38344634175300596, "sibling_qid": "KOL-2025-07-0995-Q008", "sibling_text": "decider what is esp which chapter of solas what all are checked", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "How an ESP survey is carried out — conduct, engine-room preparation & 2/E duties", "cross_family": true }, { "answer_id": "ESP-A-002", "score": 0.5343402624130249, "sibling_score": 0.5343402624130249, "answer_score": null, "sibling_qid": "KOL-2025-07-0982-Q012", "sibling_text": "esp full form solas ch", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "On which ships is ESP applicable, under which statutory framework, and when is it carried out?", "cross_family": true }, { "answer_id": "ESP-A-001", "score": 0.5047852396965027, "sibling_score": 0.5047852396965027, "answer_score": 0.37811127603054046, "sibling_qid": "MUM-2026-06-3580-Q006", "sibling_text": "explain esp in detail", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the Enhanced Survey Programme (ESP), and what is its purpose?", "cross_family": true } ] }, { "qid": "KOL-2026-10-4344-Q010", "text": "substantial corrosion and it's definition ? decider ques", "family": "", "subtopic": "", "tid": "KOL-2026-10-4344", "tray": "review", "candidates": [ { "answer_id": "SUB-CORR-001", "score": 0.6931623816490173, "sibling_score": 0.6931623816490173, "answer_score": 0.5516118407249451, "sibling_qid": "MUM-2025-09-2392-Q010", "sibling_text": "what is substantial corrosion", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "SUB-CORR-01 — What is substantial corrosion, and how is it identified against survey limits?", "cross_family": false }, { "answer_id": "CORR-DEZ-003", "score": 0.46178486347198483, "sibling_score": null, "answer_score": 0.46178486347198483, "sibling_qid": "", "sibling_text": "what is pitting corrosion and what are the other types of corrosion pitting localised passive film breakdown deep narrow pit surrounding surface intact danger perforation with minimal total metal loss escapes thickness weight checks", "sibling_family": "", "via": "answer_title", "answer_title": "What is pitting corrosion, and what are the other types of corrosion?", "cross_family": false }, { "answer_id": "MATPROP-A-005", "score": 0.43771442174911496, "sibling_score": null, "answer_score": 0.43771442174911496, "sibling_qid": "", "sibling_text": "corrosion and degradation mechanisms crevice stagnant low oxygen gap an oxygen concentration differential aeration cell stress corrosion cracking tensile stress specific environment fine cracks little metal loss sudden", "sibling_family": "", "via": "answer_title", "answer_title": "Corrosion and degradation mechanisms", "cross_family": false } ] }, { "qid": "KOL-2026-10-4344-Q011", "text": " Explain full procedure how data is send. IMO duties regarding SEEMP certificate?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "SEEMP I/II/III", "tid": "KOL-2026-10-4344", "tray": "new", "candidates": [ { "answer_id": "IMODCS-003", "score": 0.5955293774604797, "sibling_score": 0.5955293774604797, "answer_score": 0.4685871571302414, "sibling_qid": "KOC-2022-12-0118-Q009", "sibling_text": "carried out annually report send to company and flag state from there report send to imo", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "How is the DCS report submitted — company, flag State, IMO — and how does it relate to the SEEMP?", "cross_family": false }, { "answer_id": "CII-107-P04-002", "score": 0.5376985669136047, "sibling_score": 0.5376985669136047, "answer_score": null, "sibling_qid": "KOL-2026-02-1173-Q003", "sibling_text": "cii compliance how will psc verify that the imo dcs data submitted is properly submitted", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Showing and verifying CII compliance — DCS, the Statement of Compliance, records and PSC", "cross_family": false }, { "answer_id": "IMODCS-001", "score": 0.5306848287582397, "sibling_score": 0.5306848287582397, "answer_score": null, "sibling_qid": "KOL-2026-07-4247-Q002", "sibling_text": "data under imo dcs", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is the IMO DCS? What data is collected, over what period, and what are the “gradings”?", "cross_family": false } ] }, { "qid": "KOL-2026-10-4345-Q001", "text": "Requirements for the pump room ?", "family": "Cargo Ops - Tankers", "subtopic": "Pump Room Safety", "tid": "KOL-2026-10-4345", "tray": "review", "candidates": [ { "answer_id": "PR-SAFE-A-004", "score": 0.7562428116798401, "sibling_score": 0.7562428116798401, "answer_score": null, "sibling_qid": "KOC-2025-03-0574-Q003", "sibling_text": "pump room requirements only electrical", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Pump-room electrical safety, lighting and portable equipment", "cross_family": false }, { "answer_id": "PUMPRM-B-002", "score": 0.7169379591941833, "sibling_score": 0.7169379591941833, "answer_score": 0.5243322432041168, "sibling_qid": "KOC-2024-10-1411-Q011", "sibling_text": "what is the requirement for pump room opening to accomodation", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Pump-room regulatory and construction requirements", "cross_family": false }, { "answer_id": "PR-SAFE-A-003", "score": 0.7083035707473755, "sibling_score": 0.7083035707473755, "answer_score": 0.5299398809671402, "sibling_qid": "KOC-2023-04-0181-Q016", "sibling_text": "pump room exhaust fan requirements", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Pump-room ventilation requirements and interlocks", "cross_family": false } ] }, { "qid": "KOL-2026-10-4345-Q002", "text": "Garbage discharge criteria inside and outside special area ?", "family": "MARPOL - Annex V (Garbage)", "subtopic": "Garbage Discharge / GRB", "tid": "KOL-2026-10-4345", "tray": "review", "candidates": [ { "answer_id": "GARB-261-002", "score": 0.8239645957946777, "sibling_score": 0.8239645957946777, "answer_score": 0.557914537191391, "sibling_qid": "KOL-2024-12-0900-Q002", "sibling_text": "garbage discharge criteria for inside outside special area", "sibling_family": "MARPOL - Annex V (Garbage)", "via": "sibling", "answer_title": "Discharge criteria — inside vs outside special areas", "cross_family": false }, { "answer_id": "GARB-261-001", "score": 0.6651099920272827, "sibling_score": 0.6651099920272827, "answer_score": null, "sibling_qid": "KOL-2021-04-0497-Q002", "sibling_text": "type of garbage and discharge criteria", "sibling_family": "MARPOL - Annex V (Garbage)", "via": "sibling", "answer_title": "MARPOL Annex V — scope, definitions and the garbage categories", "cross_family": false }, { "answer_id": "ODC-008", "score": 0.47746991515159604, "sibling_score": null, "answer_score": 0.47746991515159604, "sibling_qid": "", "sibling_text": "cargo area discharge criteria for an oil tanker outside a special area regulation 34 cargo area of an oil tanker six conditions all together 1 not within a special area", "sibling_family": "", "via": "answer_title", "answer_title": "Cargo-area discharge criteria for an oil tanker — outside a special area", "cross_family": false } ] }, { "qid": "KOL-2026-10-4345-Q004", "text": "Automatic Sprinkler system ?", "family": "SOLAS - Fire Safety", "subtopic": "Sprinkler / Water Mist / Hi-Fog", "tid": "KOL-2026-10-4345", "tray": "review", "candidates": [ { "answer_id": "FIRE-P02-05", "score": 0.7893195748329163, "sibling_score": 0.7893195748329163, "answer_score": null, "sibling_qid": "KOL-2018-10-0224-Q008", "sibling_text": "sprinkler system", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Automatic sprinkler system — arrangement and normal working", "cross_family": false }, { "answer_id": "FIRE-P02-06", "score": 0.7624436020851135, "sibling_score": 0.7624436020851135, "answer_score": 0.44357041418552395, "sibling_qid": "KOL-2026-01-1159-Q004", "sibling_text": "automatic sprinkler requirement xx question sprinkler heads", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Sprinkler heads, bulbs and temperature ratings", "cross_family": false }, { "answer_id": "FIRE-P02-07", "score": 0.7524593472480774, "sibling_score": 0.7524593472480774, "answer_score": null, "sibling_qid": "KOC-2025-02-0534-Q003", "sibling_text": "solas requirmnets for automatic sprinkler system", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Automatic sprinkler — SOLAS/FSS statutory requirements", "cross_family": false } ] }, { "qid": "KOL-2026-10-4345-Q005", "text": "P and A manual ?", "family": "Cargo Ops - Tankers", "subtopic": "P&A Manual", "tid": "KOL-2026-10-4345", "tray": "review", "candidates": [ { "answer_id": "PA-MAN-001", "score": 0.8003292679786682, "sibling_score": 0.8003292679786682, "answer_score": 0.34824449867010115, "sibling_qid": "KOL-2026-10-4318-Q001", "sibling_text": "p and a manual", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What is the P&A Manual (Procedures and Arrangements Manual)?", "cross_family": false }, { "answer_id": "CHEM-PA-001", "score": 0.7203391790390015, "sibling_score": 0.7203391790390015, "answer_score": null, "sibling_qid": "KOL-2026-03-1209-Q003", "sibling_text": "what is p and a manual", "sibling_family": "MARPOL - Annex II (NLS)", "via": "sibling", "answer_title": "Scope and applicability of MARPOL Annex II", "cross_family": true }, { "answer_id": "CHEM-PA-003", "score": 0.7112069129943848, "sibling_score": 0.7112069129943848, "answer_score": 0.3359892189502716, "sibling_qid": "KOL-2025-07-0972-Q002", "sibling_text": "p a manual", "sibling_family": "MARPOL - Annex II (NLS)", "via": "sibling", "answer_title": "The Procedures & Arrangements (P&A) Manual", "cross_family": true } ] }, { "qid": "KOL-2026-10-4345-Q006", "text": "What parameters are sent to the flag state regarding IMO DCS? Decider ques", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "MRV / DCS", "tid": "KOL-2026-10-4345", "tray": "new", "candidates": [ { "answer_id": "IMODCS-003", "score": 0.638631284236908, "sibling_score": 0.638631284236908, "answer_score": 0.32703588604927064, "sibling_qid": "KOL-2026-07-4267-Q006", "sibling_text": "what data sent for imo dcs decider question", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "How is the DCS report submitted — company, flag State, IMO — and how does it relate to the SEEMP?", "cross_family": false }, { "answer_id": "IMODCS-001", "score": 0.5870422720909119, "sibling_score": 0.5870422720909119, "answer_score": 0.3233529210090637, "sibling_qid": "KOL-2021-07-2455-Q009", "sibling_text": "what is imo dcs what data we are sending to flag state key ans do consumption and distance travelled", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is the IMO DCS? What data is collected, over what period, and what are the “gradings”?", "cross_family": false }, { "answer_id": "MRV-DCS-001", "score": 0.46569451689720154, "sibling_score": 0.46569451689720154, "answer_score": null, "sibling_qid": "KOL-2026-07-4267-Q005", "sibling_text": "imo dcs vs eu mrv decider question", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is the difference between EU MRV and IMO DCS?", "cross_family": false } ] }, { "qid": "KOL-2026-10-4345-Q007", "text": "EEXI and calculation, correction factor details, formula, unit ? Decider ques", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "EEDI", "tid": "KOL-2026-10-4345", "tray": "review", "candidates": [ { "answer_id": "EEDI-B-001", "score": 0.6825726628303528, "sibling_score": 0.6825726628303528, "answer_score": 0.40630773901939393, "sibling_qid": "KOL-2023-05-0746-Q005", "sibling_text": "eedi eexi cii formula and unit difference between eedi eexi correction factor", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "EEDI — formula, unit and the calculation terms", "cross_family": false }, { "answer_id": "EECS-001", "score": 0.6287477016448975, "sibling_score": 0.6287477016448975, "answer_score": 0.40736519694328305, "sibling_qid": "KOL-2024-12-0893-Q008", "sibling_text": "formula for eedi and eexi unit", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "01. Differentiate EEDI and EEXI — formula and units of each", "cross_family": false }, { "answer_id": "EECS-003", "score": 0.6234259009361267, "sibling_score": 0.6234259009361267, "answer_score": 0.4014366030693054, "sibling_qid": "KOL-2025-09-1084-Q008", "sibling_text": "what is eexi cii formula", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "03. Explain EEXI and CII, including how each is calculated", "cross_family": false } ] }, { "qid": "KOL-2026-10-4346-Q001", "text": "Explain Parametric rolling and synchronous rolling ?", "family": "Ship Construction & Stability", "subtopic": "Parametric / Synchronous Rolling", "tid": "KOL-2026-10-4346", "tray": "review", "candidates": [ { "answer_id": "PAR-ROLL-007", "score": 0.6855307221412659, "sibling_score": 0.6855307221412659, "answer_score": 0.3783763498067856, "sibling_qid": "KOL-2026-07-4245-Q005", "sibling_text": "explain parametric rolling", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "07. Variant / garbled wording (declared interpretation: parametric rolling)", "cross_family": false }, { "answer_id": "PAR-ROLL-001", "score": 0.6855307221412659, "sibling_score": 0.6855307221412659, "answer_score": 0.37669643461704255, "sibling_qid": "MUM-2026-03-0810-Q001", "sibling_text": "explain parametric rolling", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "01. What is parametric rolling?", "cross_family": false }, { "answer_id": "PAR-ROLL-004", "score": 0.4370857834815979, "sibling_score": null, "answer_score": 0.4370857834815979, "sibling_qid": "", "sibling_text": "04 parametric vs synchronous rolling and the sequential prismatic variants synchronous direct forced resonance encounter period natural roll period 1 1 typically beam near beam seas driven by the wave s direct rolling moment parametric resonance from cyclic gm gz righting moment variation the principal container ship case is encounter period roll period 2 1 so stability varies at about twice the r", "sibling_family": "", "via": "answer_title", "answer_title": "04. Parametric vs synchronous rolling (and the ‘sequential / prismatic’ variants)", "cross_family": false } ] }, { "qid": "KOL-2026-10-4346-Q002", "text": "What conditions class certificate can be withdrawn ?", "family": "Surveys - Statutory", "subtopic": "Condition of Class", "tid": "KOL-2026-10-4346", "tray": "new", "candidates": [ { "answer_id": "CERT-LIST-P02-005", "score": 0.6171215176582336, "sibling_score": 0.6171215176582336, "answer_score": 0.34878105521202085, "sibling_qid": "KOL-2018-02-0150-Q001", "sibling_text": "class certificate criteria issue", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Class certificate / classification certificate", "cross_family": false }, { "answer_id": "COC-001", "score": 0.5886146426200867, "sibling_score": 0.5886146426200867, "answer_score": null, "sibling_qid": "MUM-2025-03-2273-Q006", "sibling_text": "class certificate vs condition of class", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is a Condition of Class? Give examples, say where it is found, how much time is given to rectify it, and what happens if it is not met in time.", "cross_family": false }, { "answer_id": "CERT-LIST-P01-001", "score": 0.5582550168037415, "sibling_score": 0.5582550168037415, "answer_score": null, "sibling_qid": "KOL-2026-08-4162-Q004", "sibling_text": "what are the certificates issued by the class", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "List the statutory certificates carried onboard a ship.", "cross_family": false } ] }, { "qid": "KOL-2026-10-4346-Q003", "text": "Hyper mist regulations ?", "family": "SOLAS - Fire Safety", "subtopic": "Sprinkler / Water Mist / Hi-Fog", "tid": "KOL-2026-10-4346", "tray": "review", "candidates": [ { "answer_id": "FIRE-P02-01", "score": 0.7755656838417053, "sibling_score": 0.7755656838417053, "answer_score": null, "sibling_qid": "KOC-2025-10-0681-Q004", "sibling_text": "hyper mist regulations", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist — SOLAS/FSS basis and ECR/machinery-space arrangement", "cross_family": false }, { "answer_id": "FIRE-P02-02", "score": 0.36744854152202605, "sibling_score": null, "answer_score": 0.36744854152202605, "sibling_qid": "", "sibling_text": "hypermist routine testing alarms and 2 e maintenance statutory anchor solas ii 2 reg 14 operational readiness and maintenance to the approved plan under reg 14 2 2 current imo maintenance guideline msc 1 circ 1432 as amended by msc 1 circ 1516 the framework for fss code fixed ff systems", "sibling_family": "", "via": "answer_title", "answer_title": "Hypermist — routine testing, alarms and 2/E maintenance", "cross_family": false }, { "answer_id": "FIRE-P02-04", "score": 0.36632998287677765, "sibling_score": null, "answer_score": 0.36632998287677765, "sibling_qid": "", "sibling_text": "hypermist vs sprinkler and co comparison and coexistence sprinkler fss ch 8 accommodation service spaces and control stations low pressure large droplets wet and cool single head activation on heat water mist fss ch 7 msc 1 circ 1387 for local application machinery space local application high pressure fine droplets evaporative cooling and steam envelope oxygen displacement", "sibling_family": "", "via": "answer_title", "answer_title": "Hypermist vs sprinkler and CO₂ — comparison and coexistence", "cross_family": false } ] }, { "qid": "KOL-2026-10-4346-Q004", "text": "ISM internal and external audit details ?", "family": "ISM Code", "subtopic": "ISM / SMS / Audit", "tid": "KOL-2026-10-4346", "tray": "review", "candidates": [ { "answer_id": "ISM-AUD-P02-007", "score": 0.691006600856781, "sibling_score": 0.691006600856781, "answer_score": 0.49610051810741423, "sibling_qid": "KOL-2026-05-4230-Q007", "sibling_text": "ism 3 difference between internal audit and external audit need to here internal detailed review", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Internal versus external ISM audit: purpose, difference and who does it", "cross_family": false }, { "answer_id": "ISM-AUDIT-P01-002", "score": 0.6447691917419434, "sibling_score": 0.6447691917419434, "answer_score": null, "sibling_qid": "KOL-2018-09-0221-Q003", "sibling_text": "additional audits in ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM/SMS audits and verifications — types, who conducts them, intervals and validity", "cross_family": false }, { "answer_id": "ISM-AUD-P02-001", "score": 0.6088488101959229, "sibling_score": 0.6088488101959229, "answer_score": null, "sibling_qid": "KOC-2024-03-0321-Q013", "sibling_text": "ism audit full", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM / SMS audit: how it is carried out and what objective evidence means", "cross_family": false } ] }, { "qid": "KOL-2026-10-4346-Q005", "text": "STP tests ? Decider ques Srinivasan ", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "MRV / DCS", "tid": "KOL-2026-10-4346", "tray": "new", "candidates": [ { "answer_id": "STP-SEW-008", "score": 0.4470937252044678, "sibling_score": 0.4470937252044678, "answer_score": null, "sibling_qid": "KOC-2024-02-0301-Q008", "sibling_text": "stp working", "sibling_family": "MARPOL - Annex IV (Sewage)", "via": "sibling", "answer_title": "Working principle, reactions and recirculation", "cross_family": true }, { "answer_id": "STP-SEW-011", "score": 0.4226950705051422, "sibling_score": 0.4226950705051422, "answer_score": 0.2320885568857193, "sibling_qid": "KOC-2025-02-0545-Q007", "sibling_text": "stp criteria", "sibling_family": "MARPOL - Annex IV (Sewage)", "via": "sibling", "answer_title": "STP basics and onboard system requirements", "cross_family": true }, { "answer_id": "STP-SEW-005", "score": 0.41793403029441833, "sibling_score": 0.41793403029441833, "answer_score": null, "sibling_qid": "KOC-2023-01-0129-Q006", "sibling_text": "stp check during survey", "sibling_family": "MARPOL - Annex IV (Sewage)", "via": "sibling", "answer_title": "PSC and survey checks on the sewage system", "cross_family": true } ] }, { "qid": "KOL-2026-10-4346-Q006", "text": "CII ratings ? Decider ques Srinivasan ", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "CII / Carbon Intensity", "tid": "KOL-2026-10-4346", "tray": "new", "candidates": [ { "answer_id": "CII-RATE-P02-001", "score": 0.5891710519790649, "sibling_score": 0.5891710519790649, "answer_score": 0.24062365889549256, "sibling_qid": "MUM-2026-06-3597-Q011", "sibling_text": "what is cii explain the ratings", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "1. The CII rating scale A to E — what each rating means", "cross_family": false }, { "answer_id": "CII-P01-002", "score": 0.3022889539599419, "sibling_score": null, "answer_score": 0.3022889539599419, "sibling_qid": "", "sibling_text": "when did cii enter into force when are ratings issued and the implementation timings in force 1 november 2022 the mepc 328 76 amendments mandatory from 1 january 2023 first reporting year 2023 first ratings issued 2024 on 2023 calendar year data", "sibling_family": "", "via": "answer_title", "answer_title": "When did CII enter into force, when are ratings issued, and the implementation timings", "cross_family": false }, { "answer_id": "EECS-018", "score": 0.2543893069028854, "sibling_score": null, "answer_score": 0.2543893069028854, "sibling_qid": "", "sibling_text": "18 the reduction factor what it is how it is obtained from when it applies z factor annual cut in required cii below the 2019 reference line required cii 2019 reference line reduced by the year s z", "sibling_family": "", "via": "answer_title", "answer_title": "18. The reduction factor — what it is, how it is obtained, from when it applies", "cross_family": false } ] }, { "qid": "KOL-2026-10-4347-Q001", "text": "Explain Inclining Experiment?", "family": "Ship Construction & Stability", "subtopic": "Inclining Experiment", "tid": "KOL-2026-10-4347", "tray": "review", "candidates": [ { "answer_id": "INCL-EXP-A-001", "score": 0.7218789458274841, "sibling_score": 0.7218789458274841, "answer_score": 0.44609251618385315, "sibling_qid": "MUM-2026-07-3796-Q003", "sibling_text": "explain inclining experiment", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "What is an inclining experiment?", "cross_family": false }, { "answer_id": "INCL-EXP-B-001", "score": 0.7208138108253479, "sibling_score": 0.7208138108253479, "answer_score": 0.40681610107421873, "sibling_qid": "KOL-2026-02-1175-Q003", "sibling_text": "explain inclining experiment why", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "B1. Purpose and outputs of an inclining experiment", "cross_family": false }, { "answer_id": "INCL-EXP-C-001", "score": 0.4938580811023712, "sibling_score": null, "answer_score": 0.4938580811023712, "sibling_qid": "", "sibling_text": "what preparations conditions precautions data and procedure are required for an inclining experiment", "sibling_family": "", "via": "answer_title", "answer_title": "What preparations, conditions, precautions, data, and procedure are required for an inclining experiment?", "cross_family": false } ] }, { "qid": "KOL-2026-10-4347-Q002", "text": "Anchor calibration ?", "family": "Auxiliary Equipment", "subtopic": "Anchor / Anchor Chain", "tid": "KOL-2026-10-4347", "tray": "review", "candidates": [ { "answer_id": "ANCHR-B-003", "score": 0.684325098991394, "sibling_score": 0.684325098991394, "answer_score": null, "sibling_qid": "MUM-2026-07-3762-Q001", "sibling_text": "ranging of anchor", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Ranging the cable — what it is, why, and the parts", "cross_family": false }, { "answer_id": "ANCHR-B-002", "score": 0.6537649035453796, "sibling_score": 0.6537649035453796, "answer_score": null, "sibling_qid": "KOL-2026-07-4281-Q005", "sibling_text": "anchor checks", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Anchor & cable survey in dry dock — the systematic inspection", "cross_family": false }, { "answer_id": "ANCH-CHN-A-006", "score": 0.6387057900428772, "sibling_score": 0.6387057900428772, "answer_score": null, "sibling_qid": "MUM-2024-09-0962-Q006", "sibling_text": "how to check anchor", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Holding, securing the cable for sea, and general checks", "cross_family": false } ] }, { "qid": "KOL-2026-10-4347-Q003", "text": "Static and dynamic stability ?", "family": "Ship Construction & Stability", "subtopic": "Static / Dynamic Stability/damage stability", "tid": "KOL-2026-10-4347", "tray": "review", "candidates": [ { "answer_id": "STAB-SD-C-001", "score": 0.8395628929138184, "sibling_score": 0.8395628929138184, "answer_score": 0.5940440118312835, "sibling_qid": "MUM-2026-08-3835-Q006", "sibling_text": "static stability dynamic stability", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Static stability vs dynamic stability — and how each is measured", "cross_family": false }, { "answer_id": "STAB-B-001", "score": 0.8075181841850281, "sibling_score": 0.8075181841850281, "answer_score": 0.4889192581176758, "sibling_qid": "MUM-2026-02-0729-Q004", "sibling_text": "intact stability and dynamic stability", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Dynamic stability — definition, physical meaning, and the IS Code criteria", "cross_family": false }, { "answer_id": "STAB-SD-C-002", "score": 0.785752534866333, "sibling_score": 0.785752534866333, "answer_score": 0.575268104672432, "sibling_qid": "KOC-2023-06-0193-Q003", "sibling_text": "static stabilty", "sibling_family": "", "via": "sibling", "answer_title": "Static stability — what it is and what it quantifies", "cross_family": false } ] }, { "qid": "KOL-2026-10-4347-Q004", "text": "9l foam extinguisher recharge ?", "family": "SOLAS - Fire Safety", "subtopic": "Fire Extinguisher Types", "tid": "KOL-2026-10-4347", "tray": "review", "candidates": [ { "answer_id": "FEXT-583-009", "score": 0.830350935459137, "sibling_score": 0.830350935459137, "answer_score": 0.5103086650371551, "sibling_qid": "KOL-2026-03-3925-Q003", "sibling_text": "how to recharge 9l foam extinguisher", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Recharging and refilling — DCP, foam and CO2, and what can be done on board", "cross_family": false }, { "answer_id": "FOAM-570-001", "score": 0.8092960715293884, "sibling_score": 0.8092960715293884, "answer_score": 0.5496836721897125, "sibling_qid": "KOL-2018-04-3141-Q006", "sibling_text": "empty 9 ltr foam extinguisher fill it", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "What is the capacity, weight and filling quantity of a hand-held foam extinguisher?", "cross_family": false }, { "answer_id": "FOAM-570-002", "score": 0.7507424354553223, "sibling_score": 0.7507424354553223, "answer_score": 0.63127780854702, "sibling_qid": "KOL-2019-10-3277-Q006", "sibling_text": "recharging foam extinguisher", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "How is a 9-litre foam extinguisher filled or recharged?", "cross_family": false } ] }, { "qid": "KOL-2026-10-4347-Q005", "text": "Difference between DOL starters and soft starters?", "family": "Electrical - Motors & Starters", "subtopic": "Soft Starter", "tid": "KOL-2026-10-4347", "tray": "review", "candidates": [ { "answer_id": "STARTER-DEC-B-003", "score": 0.7674320340156555, "sibling_score": 0.7674320340156555, "answer_score": null, "sibling_qid": "KOC-2024-11-1433-Q002", "sibling_text": "dol and soft starter only explanation", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "DOL starter — use, current, range and limits", "cross_family": false }, { "answer_id": "STR-DEC-A-001", "score": 0.7426181435585022, "sibling_score": 0.7426181435585022, "answer_score": 0.4891096532344818, "sibling_qid": "KOL-2025-12-2929-Q006", "sibling_text": "dol and starter difference what other types of starters soft starters scr functioning", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "SOFTSTART-P03-002", "score": 0.7363656163215637, "sibling_score": 0.7363656163215637, "answer_score": 0.5672359943389892, "sibling_qid": "KOL-2025-05-2782-Q002", "sibling_text": "difference between dol starter and soft starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "DOL starter versus soft starter", "cross_family": false } ] }, { "qid": "KOL-2026-10-4347-Q006", "text": "How to test Reverse power trip ?", "family": "Electrical - Generator & Alternator", "subtopic": "Reverse Power Trip", "tid": "KOL-2026-10-4347", "tray": "review", "candidates": [ { "answer_id": "RPT-C-002", "score": 0.7252865433692932, "sibling_score": 0.7252865433692932, "answer_score": 0.5690890789031983, "sibling_qid": "KOC-2021-05-1132-Q007", "sibling_text": "testing use and setting of reverse power trip", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Testing & trying out the reverse power trip — onboard, at survey, and when it fails", "cross_family": false }, { "answer_id": "RPT-A-003", "score": 0.7160463929176331, "sibling_score": 0.7160463929176331, "answer_score": 0.4840365707874298, "sibling_qid": "KOL-2020-06-2383-Q003", "sibling_text": "reverse power trip working", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "How the reverse-power trip works, and the sequence once reverse power develops", "cross_family": false }, { "answer_id": "RPT-A-001", "score": 0.7070066332817078, "sibling_score": 0.7070066332817078, "answer_score": null, "sibling_qid": "MUM-2023-07-2739-Q006", "sibling_text": "reverse power trip function", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Reverse power: what it is, why it happens, why we protect against it", "cross_family": false } ] }, { "qid": "KOL-2026-10-4347-Q007", "text": "Synchronoscope working ?", "family": "Electrical - Generator & Alternator", "subtopic": "Synchronization", "tid": "KOL-2026-10-4347", "tray": "review", "candidates": [ { "answer_id": "SYNC-D-003", "score": 0.7685160636901855, "sibling_score": 0.7685160636901855, "answer_score": null, "sibling_qid": "MUM-2025-09-1676-Q002", "sibling_text": "synccroscope working", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Correct paralleling — checks, the synchroscope & phase angle, voltage trim, interlocks", "cross_family": false }, { "answer_id": "SYNC-B-001", "score": 0.7525378465652466, "sibling_score": 0.7525378465652466, "answer_score": 0.4391277939081192, "sibling_qid": "MUM-2026-02-1918-Q001", "sibling_text": "synchronoscope working", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Synchroscope — construction, working and purpose", "cross_family": false }, { "answer_id": "SYNCRO-A-001", "score": 0.7085644602775574, "sibling_score": 0.7085644602775574, "answer_score": 0.46160753965377804, "sibling_qid": "KOL-2019-02-2266-Q003", "sibling_text": "synchroscope everything", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Synchroscope — construction, working, purpose & circuit/principle", "cross_family": false } ] }, { "qid": "KOL-2026-10-4347-Q008", "text": "Load test of battery ?", "family": "Electrical - Batteries & DC Systems", "subtopic": "Battery Testing / Load Test / SG", "tid": "KOL-2026-10-4347", "tray": "review", "candidates": [ { "answer_id": "BDC-P04-03", "score": 0.8054675459861755, "sibling_score": 0.8054675459861755, "answer_score": 0.5412921518087387, "sibling_qid": "MUM-2025-07-1567-Q004", "sibling_text": "load test of a battery value", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "Battery load test on board — preparation, deciding the load, and reading the result", "cross_family": false }, { "answer_id": "BAT-CHG-05", "score": 0.4691308319568634, "sibling_score": null, "answer_score": 0.4691308319568634, "sibling_qid": "", "sibling_text": "battery charging full charged under charged and overcharged", "sibling_family": "", "via": "answer_title", "answer_title": "Battery Charging-Full charged under charged and overcharged", "cross_family": false }, { "answer_id": "BDC-P04-02", "score": 0.45647908151149746, "sibling_score": null, "answer_score": 0.45647908151149746, "sibling_qid": "", "sibling_text": "battery health and state of charge weak cell dead cell and when to renew layered evidence visual condition open circuit voltage per cell and bank specific gravity per cell lead acid on load voltage behaviour internal resistance trend capacity test no single reading condemns a battery fully charged indicators beyond a voltmeter gravity at maximum and unchanged across successive readings at the make", "sibling_family": "", "via": "answer_title", "answer_title": "Battery health and state of charge — weak cell, dead cell, and when to renew", "cross_family": false } ] }, { "qid": "KOL-2026-10-4348-Q001", "text": "What is URN ?", "family": "Drydock & Underwater Surveys", "subtopic": "", "tid": "KOL-2026-10-4348", "tray": "new", "candidates": [ { "answer_id": "IMDG-003", "score": 0.4167299270629883, "sibling_score": 0.4167299270629883, "answer_score": 0.24320169389247895, "sibling_qid": "CHE-2025-10-0070-Q019", "sibling_text": "what is un number", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is a UN number and a Proper Shipping Name? Give an example", "cross_family": true }, { "answer_id": "UMS-310-001", "score": 0.38148266077041626, "sibling_score": 0.38148266077041626, "answer_score": null, "sibling_qid": "MUM-2025-12-0652-Q001", "sibling_text": "ums regs", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a UMS ship and what does SOLAS require? (Part E, regs 46–53)", "cross_family": true }, { "answer_id": "NER-HV-P04-001", "score": 0.38102948665618896, "sibling_score": 0.38102948665618896, "answer_score": null, "sibling_qid": "MUM-2025-08-1597-Q001", "sibling_text": "what is ner", "sibling_family": "", "via": "sibling", "answer_title": "What an NER is, where it is used, and why it is fitted in HV systems", "cross_family": false } ] }, { "qid": "KOL-2026-10-4348-Q002", "text": "Statutory certificate required for chemical tanker ?", "family": "Surveys - Statutory", "subtopic": "Certificates List", "tid": "KOL-2026-10-4348", "tray": "review", "candidates": [ { "answer_id": "BCH-IBC-A-003", "score": 0.7849826812744141, "sibling_score": 0.7849826812744141, "answer_score": 0.5299138903617858, "sibling_qid": "MUM-2026-04-0897-Q004", "sibling_text": "statutory certificate for chemical tankers", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Certificate of Fitness — what a chemical tanker is allowed to carry", "cross_family": true }, { "answer_id": "CERT-LIST-P03-001", "score": 0.7796754837036133, "sibling_score": 0.7796754837036133, "answer_score": 0.5315076768398285, "sibling_qid": "KOC-2024-01-0287-Q004", "sibling_text": "statutory certificates for a tanker under marpol", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "MARPOL, AFS & annex-specific certificates", "cross_family": false }, { "answer_id": "CERT-LIST-P02-003", "score": 0.7227111458778381, "sibling_score": 0.7227111458778381, "answer_score": null, "sibling_qid": "KOC-2026-01-0787-Q002", "sibling_text": "gas tanker certificates", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Certificates that decide ship type and permitted cargo", "cross_family": false } ] }, { "qid": "KOL-2026-10-4348-Q003", "text": "Watertight door regulation ?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankcase Explosion", "tid": "KOL-2026-10-4348", "tray": "review", "candidates": [ { "answer_id": "WTD-001", "score": 0.7118878364562988, "sibling_score": 0.7118878364562988, "answer_score": 0.4944346368312836, "sibling_qid": "KOL-2023-03-0725-Q002", "sibling_text": "regulation of water tight doors", "sibling_family": "SOLAS - Watertight & Closing Appliances", "via": "sibling", "answer_title": "What watertight doors are, the types fitted, and the SOLAS/Class requirements", "cross_family": true }, { "answer_id": "WEATH-545-001", "score": 0.670799970626831, "sibling_score": 0.670799970626831, "answer_score": null, "sibling_qid": "MUM-2026-09-3882-Q006", "sibling_text": "water tight door", "sibling_family": "SOLAS - Watertight & Closing Appliances", "via": "sibling", "answer_title": "What is weathertight, and how does it differ from watertight — meaning, application, location and testing?", "cross_family": true }, { "answer_id": "WTD-002", "score": 0.6312669515609741, "sibling_score": 0.6312669515609741, "answer_score": 0.42094108313322065, "sibling_qid": "KOL-2021-10-0562-Q003", "sibling_text": "watertight door maintenance", "sibling_family": "SOLAS - Watertight & Closing Appliances", "via": "sibling", "answer_title": "Inspecting, maintaining and testing watertight doors and watertight integrity in survey", "cross_family": true } ] }, { "qid": "KOL-2026-10-4348-Q004", "text": "Explain Unseaworthy ships and unsafe ships?", "family": "Maritime Law & Certificates", "subtopic": "Seaworthiness / Unseaworthy Ship", "tid": "KOL-2026-10-4348", "tray": "review", "candidates": [ { "answer_id": "SEAWTHY-001", "score": 0.7105605006217957, "sibling_score": 0.7105605006217957, "answer_score": 0.5276883244514465, "sibling_qid": "MUM-2026-05-3084-Q005", "sibling_text": "explain unseaworthy ships and unsafe ships", "sibling_family": "Maritime Law & Certificates", "via": "sibling", "answer_title": "Difference between an unsafe vessel and an unseaworthy vessel", "cross_family": false }, { "answer_id": "SEAWTHY-002", "score": 0.7105604410171509, "sibling_score": 0.7105604410171509, "answer_score": 0.4555009126663208, "sibling_qid": "MUM-2026-05-3157-Q005", "sibling_text": "explain unseaworthy ships and unsafe ships", "sibling_family": "Maritime Law & Certificates", "via": "sibling", "answer_title": "What is a seaworthy vessel — and an unseaworthy one?", "cross_family": false }, { "answer_id": "SEAWTHY-003", "score": 0.5994154810905457, "sibling_score": 0.5994154810905457, "answer_score": 0.5200821459293365, "sibling_qid": "MUM-2025-01-2787-Q002", "sibling_text": "going for drydock prepration will you do anil sir joined continue from dry dock prepration stealer plate he joined for certificate qstn what is unsafe n unseaworthy ship now tell me certificates again was unable to recall", "sibling_family": "Maritime Law & Certificates", "via": "sibling", "answer_title": "Unsafe and unseaworthy vessel — in a certificates and drydock discussion", "cross_family": false } ] }, { "qid": "KOL-2026-10-4349-Q001", "text": "Damage stability criteria ?", "family": "Ship Construction & Stability", "subtopic": "Static / Dynamic Stability/damage stability", "tid": "KOL-2026-10-4349", "tray": "review", "candidates": [ { "answer_id": "DAM-STAB-P03-002", "score": 0.7624465227127075, "sibling_score": 0.7624465227127075, "answer_score": null, "sibling_qid": "CHE-2025-08-0041-Q015", "sibling_text": "damage stability criteria", "sibling_family": "", "via": "sibling", "answer_title": "General cargo-ship damage stability criteria and requirements", "cross_family": false }, { "answer_id": "DS-049-P02-001", "score": 0.7582904100418091, "sibling_score": 0.7582904100418091, "answer_score": 0.49850710630416867, "sibling_qid": "KOC-2024-09-0405-Q008", "sibling_text": "damage stability intact stability criteria", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Difference between intact stability (static / dynamic) and damage stability criteria", "cross_family": true }, { "answer_id": "DAM-STAB-P03-001", "score": 0.7576406002044678, "sibling_score": 0.7576406002044678, "answer_score": 0.5034122377634048, "sibling_qid": "KOL-2023-08-0763-Q004", "sibling_text": "damage stability intact stability what and criteria", "sibling_family": "", "via": "sibling", "answer_title": "Intact, static, dynamic and damage stability: difference and criteria", "cross_family": false } ] }, { "qid": "KOL-2026-10-4349-Q002", "text": "Incinerator requirement ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "OMD / Oil Mist Detector", "tid": "KOL-2026-10-4349", "tray": "review", "candidates": [ { "answer_id": "INCIN-003", "score": 0.6986795663833618, "sibling_score": 0.6986795663833618, "answer_score": null, "sibling_qid": "KOL-2026-09-4307-Q003", "sibling_text": "incinerator requirements", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Which MARPOL annex and code; batch vs continuous-feed", "cross_family": true }, { "answer_id": "INCIN-004", "score": 0.597781777381897, "sibling_score": 0.597781777381897, "answer_score": 0.4494010746479034, "sibling_qid": "KOL-2023-03-3594-Q002", "sibling_text": "incinerator according to marpol maintainenece", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Incinerator PMS, maintenance and PSC verification", "cross_family": true }, { "answer_id": "INCIN-002", "score": 0.577865481376648, "sibling_score": 0.577865481376648, "answer_score": null, "sibling_qid": "KOL-2026-02-1183-Q006", "sibling_text": "in incinerator what you can burn and what you can t burn give exact details with marpol", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "What you can and cannot burn under MARPOL", "cross_family": true } ] }, { "qid": "KOL-2026-10-4349-Q004", "text": "ISM internal and external audit ?", "family": "ISM Code", "subtopic": "ISM / SMS / Audit", "tid": "KOL-2026-10-4349", "tray": "review", "candidates": [ { "answer_id": "ISM-AUD-P02-007", "score": 0.7245146036148071, "sibling_score": 0.7245146036148071, "answer_score": 0.5158818513154984, "sibling_qid": "CHE-2026-05-0586-Q022", "sibling_text": "ism internal and external audit", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Internal versus external ISM audit: purpose, difference and who does it", "cross_family": false }, { "answer_id": "ISM-AUDIT-P01-002", "score": 0.6835098266601562, "sibling_score": 0.6835098266601562, "answer_score": null, "sibling_qid": "KOL-2026-02-1187-Q003", "sibling_text": "ism internal audits", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM/SMS audits and verifications — types, who conducts them, intervals and validity", "cross_family": false }, { "answer_id": "ISM-AUD-P03-002", "score": 0.6300613880157471, "sibling_score": 0.6300613880157471, "answer_score": null, "sibling_qid": "KOC-2022-09-0090-Q008", "sibling_text": "ism audit", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM audit / survey — what it is, who conducts it, what it covers onboard", "cross_family": false } ] }, { "qid": "KOL-2026-10-4350-Q001", "text": "Damage stability of bulk carrier ?", "family": "Ship Construction & Naval Architecture", "subtopic": "", "tid": "KOL-2026-10-4350", "tray": "review", "candidates": [ { "answer_id": "DS-P04-004", "score": 0.8110581636428833, "sibling_score": 0.8110581636428833, "answer_score": null, "sibling_qid": "CHE-2026-05-0612-Q010", "sibling_text": "damage stability for bulk carriers", "sibling_family": "Ship Construction & Naval Architecture", "via": "sibling", "answer_title": "Damage stability requirements for bulk carriers", "cross_family": false }, { "answer_id": "DS-P05-001", "score": 0.5505906581878662, "sibling_score": null, "answer_score": 0.5505906581878662, "sibling_qid": "", "sibling_text": "1 damage stability criteria for tankers chemical gas lng lpg carriers", "sibling_family": "", "via": "answer_title", "answer_title": "1. Damage stability criteria for tankers, chemical/gas/LNG/LPG carriers", "cross_family": false }, { "answer_id": "CONT-FIRE-FINAL-1-005", "score": 0.5389600902795791, "sibling_score": null, "answer_score": 0.5389600902795791, "sibling_qid": "", "sibling_text": "container ship stability and on deck tier loading the gm window too little gm tender risk of loll capsize too much stiff violent short period roll that overloads lashings and stacks parametric rolling in longitudinal head following seas the dangerous resonant roll counter by altering course or speed", "sibling_family": "", "via": "answer_title", "answer_title": "Container ship stability and on-deck tier loading", "cross_family": false } ] }, { "qid": "KOL-2026-10-4350-Q002", "text": "How to know high or low expansion foam ?", "family": "SOLAS - Fire Safety", "subtopic": "Foam System / Monitor", "tid": "KOL-2026-10-4350", "tray": "review", "candidates": [ { "answer_id": "FOAM-SYS-P04-001", "score": 0.7082831859588623, "sibling_score": 0.7082831859588623, "answer_score": 0.5161555886268615, "sibling_qid": "KOL-2022-03-0610-Q006", "sibling_text": "difference between high expansion and low expansion foam not expansion ratio", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "4. Expansion ratios — low, medium, high", "cross_family": false }, { "answer_id": "FOAM-032-P03-002", "score": 0.6745492815971375, "sibling_score": 0.6745492815971375, "answer_score": null, "sibling_qid": "KOC-2025-12-0760-Q009", "sibling_text": "high expansion foam expansion ratio foam base concentration", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "High-expansion foam generator / nozzle arrangement — draw and explain", "cross_family": false }, { "answer_id": "FOAM-SYS-P04-004", "score": 0.4523535668849945, "sibling_score": null, "answer_score": 0.4523535668849945, "sibling_qid": "", "sibling_text": "3 why low expansion foam on deck not high expansion three reasons throw reach dense projectable by monitor wind resistance open exposed deck a coherent wet fuel sealing burnback resistant blanket high expansion is light and airy needs confinement to flood engine room holds not the open deck choice", "sibling_family": "", "via": "answer_title", "answer_title": "3. Why low-expansion foam on deck, not high-expansion", "cross_family": false } ] }, { "qid": "KOL-2026-10-4350-Q003", "text": "GHG latest regulations ?", "family": "General Marine Engineering", "subtopic": "Rules and Regulation", "tid": "KOL-2026-10-4350", "tray": "review", "candidates": [ { "answer_id": "MEPC-GHG-005", "score": 0.6948474645614624, "sibling_score": 0.6948474645614624, "answer_score": null, "sibling_qid": "KOL-2023-10-0779-Q003", "sibling_text": "ghg new regulations", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "The IMO GHG Strategy and its revised version — the new and latest GHG measures, the strategy on CO2, and the requirements for reducing GHG.", "cross_family": true }, { "answer_id": "MEPC-GHG-001", "score": 0.6573022603988647, "sibling_score": 0.6573022603988647, "answer_score": null, "sibling_qid": "KOL-2023-12-0792-Q005", "sibling_text": "latest amendments for ghg", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What was decided at the latest MEPC meeting? Explain the latest MEPC circular and outcomes.", "cross_family": true }, { "answer_id": "CII-RATE-P02-001", "score": 0.6052941083908081, "sibling_score": 0.6052941083908081, "answer_score": null, "sibling_qid": "KOL-2023-12-0798-Q004", "sibling_text": "latest ghg regulations x questions of cii ratings and seemp pt", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "1. The CII rating scale A to E — what each rating means", "cross_family": true } ] }, { "qid": "KOL-2026-10-4350-Q004", "text": "Preparation of ISM Audit as 2/E ?", "family": "ISM Code", "subtopic": "ISM / SMS / Audit", "tid": "KOL-2026-10-4350", "tray": "review", "candidates": [ { "answer_id": "ISM-2E-B-001", "score": 0.7370956540107727, "sibling_score": 0.7370956540107727, "answer_score": 0.4114191234111786, "sibling_qid": "KOC-2022-10-0106-Q003", "sibling_text": "ism audit preparations as 2 e", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "B1. Preparing for an ISM audit as Second Engineer", "cross_family": false }, { "answer_id": "ISM-AUDIT-P01-001", "score": 0.7132956385612488, "sibling_score": 0.7132956385612488, "answer_score": 0.40939398407936095, "sibling_qid": "KOL-2023-12-0792-Q002", "sibling_text": "ism audit preparation as 2eo", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Preparing engine room, records and documents for ISM/SMS audit (2/E)", "cross_family": false }, { "answer_id": "ISM-2E-C-001", "score": 0.6725754737854004, "sibling_score": 0.6725754737854004, "answer_score": 0.4517978847026825, "sibling_qid": "KOC-2025-03-0579-Q005", "sibling_text": "ism audit preparation as 2e without documentation", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM audit / survey preparation as Second Engineer — beyond the paperwork", "cross_family": false } ] }, { "qid": "KOL-2026-10-4350-Q005", "text": "Incinerator operation requirements ?", "family": "Auxiliary Equipment", "subtopic": "Incinerator", "tid": "KOL-2026-10-4350", "tray": "review", "candidates": [ { "answer_id": "INCIN-003", "score": 0.7484256029129028, "sibling_score": 0.7484256029129028, "answer_score": null, "sibling_qid": "KOL-2026-09-4307-Q003", "sibling_text": "incinerator requirements", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Which MARPOL annex and code; batch vs continuous-feed", "cross_family": false }, { "answer_id": "INCIN-002", "score": 0.6890254020690918, "sibling_score": 0.6890254020690918, "answer_score": null, "sibling_qid": "KOL-2017-07-0102-Q003", "sibling_text": "incinerator operations what to not burn", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "What you can and cannot burn under MARPOL", "cross_family": false }, { "answer_id": "INCIN-004", "score": 0.665637195110321, "sibling_score": 0.665637195110321, "answer_score": 0.5043592989444733, "sibling_qid": "KOL-2023-03-3594-Q002", "sibling_text": "incinerator according to marpol maintainenece", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Incinerator PMS, maintenance and PSC verification", "cross_family": false } ] }, { "qid": "KOL-2026-10-4350-Q006", "text": "Risk + Risk Assessment + Matrix + How to calculate ? Internal ques Srinivasan ", "family": "Risk & Safety Management", "subtopic": "Risk Assessment / Management", "tid": "KOL-2026-10-4350", "tray": "new", "candidates": [ { "answer_id": "RISK-RA-D-001", "score": 0.6387869715690613, "sibling_score": 0.6387869715690613, "answer_score": 0.4588961064815521, "sibling_qid": "MUM-2023-11-2210-Q001", "sibling_text": "risk assessment formula for risk assessment matrix too many cross questions", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "LVC-577-003", "score": 0.5696213841438293, "sibling_score": 0.5696213841438293, "answer_score": 0.48556469678878783, "sibling_qid": "KOC-2026-02-2001-Q002", "sibling_text": "contents of a ra form for risk assessment as a second engineer x qns how many types of likelihood are there names how many types of consequence name 5th what will be risk if likelyhood 4 and conseqnc 3", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "Using likelihood and consequence in a risk matrix", "cross_family": false }, { "answer_id": "RA-MGMT-A-001", "score": 0.5651319622993469, "sibling_score": 0.5651319622993469, "answer_score": 0.40328419059514997, "sibling_qid": "MUM-2025-09-0446-Q003", "sibling_text": "2 what is risk assessment and how we calculate", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "What is risk, what is hazard, and what is risk assessment?", "cross_family": false } ] }, { "qid": "KOL-2026-10-4350-Q007", "text": "Explain Shell expansion plan? Internal ques Srinivasan", "family": "Ship Construction & Stability", "subtopic": "Shell Expansion Plan", "tid": "KOL-2026-10-4350", "tray": "review", "candidates": [ { "answer_id": "SHELL-PLT-A-001", "score": 0.769061267375946, "sibling_score": 0.769061267375946, "answer_score": 0.33977933824062345, "sibling_qid": "MUM-2026-09-3867-Q003", "sibling_text": "explain shell expansion plan", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "The shell expansion plan, and how you identify a plate", "cross_family": false }, { "answer_id": "GA-GI-DWG-001", "score": 0.769061267375946, "sibling_score": 0.769061267375946, "answer_score": 0.3988704487681389, "sibling_qid": "MUM-2026-07-3757-Q006", "sibling_text": "explain shell expansion plan", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "1. What is a shell expansion plan and where is it used?", "cross_family": false }, { "answer_id": "SHELL-PLT-A-002", "score": 0.7674347758293152, "sibling_score": 0.7674347758293152, "answer_score": null, "sibling_qid": "MUM-2026-09-3980-Q004", "sibling_text": "explain shell expansion plan", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Shell plating, strakes, and the named strakes", "cross_family": false } ] }, { "qid": "KOL-2026-10-4351-Q001", "text": "Function of inducer, diffuser and labyrinth seal ?", "family": "Turbocharger", "subtopic": "Turbocharger Construction & Surging", "tid": "KOL-2026-10-4351", "tray": "review", "candidates": [ { "answer_id": "TCS-059-P04-002", "score": 0.6963807344436646, "sibling_score": 0.6963807344436646, "answer_score": 0.4370688617229462, "sibling_qid": "KOL-2024-06-1782-Q003", "sibling_text": "t c diffuser inducer blower and labyrinth seal function", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Air-side components: inducer, impeller, diffuser", "cross_family": false }, { "answer_id": "TCS-059-P04-003", "score": 0.6685450077056885, "sibling_score": 0.6685450077056885, "answer_score": 0.4792882442474365, "sibling_qid": "KOL-2025-07-2003-Q003", "sibling_text": "inducer diffuser turbine labyrinth seal and impeller working how and from where air is supplied for the sealing", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Labyrinth seals and the sealing-air supply", "cross_family": false }, { "answer_id": "TC-CONST-006", "score": 0.5339295268058777, "sibling_score": 0.5339295268058777, "answer_score": 0.44085386395454407, "sibling_qid": "MUM-2025-07-1147-Q015", "sibling_text": "turbocharger labyrinth seal", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Labyrinth seals and geometry terms such as A/R", "cross_family": false } ] }, { "qid": "KOL-2026-10-4351-Q002", "text": "How a labyrinth seal work?", "family": "Pumps - Centrifugal & PD", "subtopic": "Labyrinth Seal", "tid": "KOL-2026-10-4351", "tray": "review", "candidates": [ { "answer_id": "LAB-SEAL-001", "score": 0.6961182951927185, "sibling_score": 0.6961182951927185, "answer_score": 0.4621313035488129, "sibling_qid": "CHE-2026-05-0596-Q006", "sibling_text": "labyrinth seal working", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Labyrinth seal — location, purpose, construction and working principle", "cross_family": false }, { "answer_id": "LAB-SEAL-003", "score": 0.5134113430976868, "sibling_score": 0.5134113430976868, "answer_score": 0.37155774235725403, "sibling_qid": "MUM-2025-08-2388-Q006", "sibling_text": "labyrinth seal damaged how will you repair", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Labyrinth seal damaged — how would you repair or renew it?", "cross_family": false }, { "answer_id": "STT-BRG-004", "score": 0.4855066239833832, "sibling_score": 0.4855066239833832, "answer_score": null, "sibling_qid": "MUM-2024-09-2240-Q005", "sibling_text": "how stern tube seals are fitted and repairs carried out internal joined external said pass in all 3 internal said i ll ask you one question only what s d english meaning of labrinth you never thought this is a unique word and lemme check it out all started laughing then asked if you had oil inside hotwell howbwill you find the source i replied but he said it s a long tedious process you need to know basic to actually locate the exact place from where it is coming then said pass in 4b 5 you comback with 6 i ll ask you english meaning of labrinth seal again", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "3. Chrome liner and seal securing — fitting, retention and repair", "cross_family": true } ] }, { "qid": "KOL-2026-10-4351-Q003", "text": "Steering gear 100 percent redundancy?", "family": "Steering Gear & Hydraulics", "subtopic": "Steering Gear System", "tid": "KOL-2026-10-4351", "tray": "review", "candidates": [ { "answer_id": "SG-055-B-003", "score": 0.8185485005378723, "sibling_score": 0.8185485005378723, "answer_score": null, "sibling_qid": "KOL-2026-10-4324-Q003", "sibling_text": "steering gear 100 redundancy", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Redundancy and the single-failure requirement (50% / 100%)", "cross_family": false }, { "answer_id": "STG-055-C-001", "score": 0.7482174038887024, "sibling_score": 0.7482174038887024, "answer_score": 0.5186398446559906, "sibling_qid": "KOL-2025-12-2029-Q003", "sibling_text": "safematic steering gear 100 redundancy capacity regulation", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Safematic steering gear, redundancy and the single-failure criterion", "cross_family": false }, { "answer_id": "RVSG-213-001", "score": 0.7446159720420837, "sibling_score": 0.7446159720420837, "answer_score": null, "sibling_qid": "KOL-2020-10-1552-Q005", "sibling_text": "what is 100 redundency in steering gear", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Construction, main parts, materials & vane fitment", "cross_family": false } ] }, { "qid": "KOL-2026-10-4351-Q004", "text": "Caustic embrittlement ?", "family": "Boilers - Safety & Survey", "subtopic": "Boiler Chemicals", "tid": "KOL-2026-10-4351", "tray": "review", "candidates": [ { "answer_id": "BLR-CHEM-002", "score": 0.7375831007957458, "sibling_score": 0.7375831007957458, "answer_score": 0.5193704694509506, "sibling_qid": "KOL-2026-02-2040-Q003", "sibling_text": "caustic embrittlement xxx", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "2. Caustic embrittlement", "cross_family": false }, { "answer_id": "BLR-CHEM-005", "score": 0.3647663414478302, "sibling_score": null, "answer_score": 0.3647663414478302, "sibling_qid": "", "sibling_text": "5 boiler and condensate corrosion water chemistry oxygen pitting dissolved o2 localised pits cure deaerate scavenger acidic corrosion mg salt hydrolysis co2 carbonic acid low ph attack", "sibling_family": "", "via": "answer_title", "answer_title": "5. Boiler and condensate corrosion (water chemistry)", "cross_family": false }, { "answer_id": "CFF-P02-006", "score": 0.3619606986641884, "sibling_score": null, "answer_score": 0.3619606986641884, "sibling_qid": "", "sibling_text": "corrosion fatigue combined action cyclic stress corrosive medium seawater synergistic worse than the sum of the two pits act as stress raisers faster initiation corrosion at the crack tip accelerates propagation", "sibling_family": "", "via": "answer_title", "answer_title": "Corrosion fatigue", "cross_family": false } ] }, { "qid": "KOL-2026-10-4351-Q005", "text": "Screw pump working principle ?", "family": "Pumps - Centrifugal & PD", "subtopic": "Gear / Screw / Mono Pump", "tid": "KOL-2026-10-4351", "tray": "review", "candidates": [ { "answer_id": "PCD-P05-02", "score": 0.8353672623634338, "sibling_score": 0.8353672623634338, "answer_score": 0.6354927957057953, "sibling_qid": "MUM-2024-11-2252-Q005", "sibling_text": "screw pump working", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Screw pump — construction, working, types, drive arrangement, clearances, why preferred over gear", "cross_family": false }, { "answer_id": "PCP-BF01-001", "score": 0.5278566807508468, "sibling_score": null, "answer_score": 0.5278566807508468, "sibling_qid": "", "sibling_text": "what is a progressive cavity pump construction and working rotary positive displacement pump single start helical rotor inside a twin start elastomer stator the stator pitch is twice the rotor pitch the interference fit between rotor and stator is the seal no running clearance no suction or discharge valves", "sibling_family": "", "via": "answer_title", "answer_title": "What is a progressive cavity pump — construction and working", "cross_family": false }, { "answer_id": "CPFE-583-016", "score": 0.5179650515317916, "sibling_score": null, "answer_score": 0.5179650515317916, "sibling_qid": "", "sibling_text": "loading through the pump flow path and direction of rotation flow axial in at the suction bell radial out through the impeller into the volute up the discharge pipe to the top plate rotation as marked wrong rotation still pumps but with badly reduced head it is a trap not a stoppage", "sibling_family": "", "via": "answer_title", "answer_title": "Loading through the pump, flow path and direction of rotation", "cross_family": false } ] }, { "qid": "KOL-2026-10-4351-Q006", "text": "What is timing gear with respect to screw pump?its function", "family": "Pumps - Centrifugal & PD", "subtopic": "Gear / Screw / Mono Pump", "tid": "KOL-2026-10-4351", "tray": "review", "candidates": [ { "answer_id": "PCD-P05-02", "score": 0.7927885055541992, "sibling_score": 0.7927885055541992, "answer_score": 0.44161721765995027, "sibling_qid": "MUM-2022-12-1037-Q026", "sibling_text": "timing gear in screw pump significane", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Screw pump — construction, working, types, drive arrangement, clearances, why preferred over gear", "cross_family": false }, { "answer_id": "PCD-P05-03", "score": 0.5887352824211121, "sibling_score": 0.5887352824211121, "answer_score": 0.4098011955618858, "sibling_qid": "KOL-2020-03-3331-Q005", "sibling_text": "gear pump working", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Gear pump — construction, working, backlash, tooth profile, safety valve, why not for sea water", "cross_family": false }, { "answer_id": "STEER-055-A-003", "score": 0.38926567882299423, "sibling_score": null, "answer_score": 0.38926567882299423, "sibling_qid": "", "sibling_text": "hunting gear floating lever and buffer spring hunting gear follow up feedback nulls the pump stroke when the rudder reaches the order preventing over run and continuous hunting floating lever three connections order input rudder feedback pump control both ends move hence floating and the pump control is taken from a point between them", "sibling_family": "", "via": "answer_title", "answer_title": "Hunting gear, floating lever and buffer spring", "cross_family": false } ] }, { "qid": "KOL-2026-10-4351-Q007", "text": "what is VIT ? how it works", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "VIT Mechanism", "tid": "KOL-2026-10-4351", "tray": "new", "candidates": [ { "answer_id": "VIT-MECH-A-002", "score": 0.6200200915336609, "sibling_score": 0.6200200915336609, "answer_score": 0.34406991600990294, "sibling_qid": "CHE-2026-02-0118-Q013", "sibling_text": "what is vit how does it work", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How VIT works — varying the start of injection on the fuel pump", "cross_family": false }, { "answer_id": "VIT-MECH-A-001", "score": 0.5763978362083435, "sibling_score": 0.5763978362083435, "answer_score": 0.3346427738666534, "sibling_qid": "MUM-2023-05-0951-Q007", "sibling_text": "what is vit", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "VIT — what it is, why it is fitted, and its trade-offs", "cross_family": false }, { "answer_id": "VIT-MECH-B-002", "score": 0.2543268382549286, "sibling_score": null, "answer_score": 0.2543268382549286, "sibling_qid": "", "sibling_text": "how vit is adjusted and set timing and fuel quality fqs interactions vit curve set at shop sea trial via indicator cards confirm pmax meets the ceiling at the breakpoint and holds to full load single cylinder pmax vit rack mechanical orp offset electronic notthe fuel index", "sibling_family": "", "via": "answer_title", "answer_title": "How VIT is adjusted and set — timing and fuel-quality (FQS) interactions", "cross_family": false } ] }, { "qid": "KOL-2026-10-4352-Q001", "text": "Advantages of axial displacement pump ?", "family": "Pumps - Centrifugal & PD", "subtopic": "Hele-Shaw / Axial Piston", "tid": "KOL-2026-10-4352", "tray": "review", "candidates": [ { "answer_id": "HSAP-583-A-013", "score": 0.7033898830413818, "sibling_score": 0.7033898830413818, "answer_score": 0.5838454097509383, "sibling_qid": "KOL-2020-02-0390-Q012", "sibling_text": "why axial flow pumps are used", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "\"Why are axial flow pumps used?\"", "cross_family": false }, { "answer_id": "PCD-P05-02", "score": 0.6898301243782043, "sibling_score": 0.6898301243782043, "answer_score": null, "sibling_qid": "KOL-2019-07-1462-Q003", "sibling_text": "screw pump advantage", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Screw pump — construction, working, types, drive arrangement, clearances, why preferred over gear", "cross_family": false }, { "answer_id": "HSAP-B-006", "score": 0.6789852976799011, "sibling_score": 0.6789852976799011, "answer_score": null, "sibling_qid": "KOL-2020-08-1542-Q002", "sibling_text": "defects of axial piston pump", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Axial piston pump — defects, peculiarities, safeties and alarms", "cross_family": false } ] }, { "qid": "KOL-2026-10-4352-Q002", "text": " Thrust bearing survey ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Thrust Bearing", "tid": "KOL-2026-10-4352", "tray": "review", "candidates": [ { "answer_id": "THRUST-PC-001", "score": 0.8320253491401672, "sibling_score": 0.8320253491401672, "answer_score": 0.5221024215221405, "sibling_qid": "KOL-2019-11-1877-Q003", "sibling_text": "thrust bearing survey", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Thrust bearing / block survey — 2/E scope", "cross_family": false }, { "answer_id": "BEB-B-001", "score": 0.7465639114379883, "sibling_score": 0.7465639114379883, "answer_score": null, "sibling_qid": "MUM-2026-07-3759-Q011", "sibling_text": "big end bearing survey", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bottom End Bearing — Survey & Inspection", "cross_family": false }, { "answer_id": "THRUST-PC-002", "score": 0.7412500977516174, "sibling_score": 0.7412500977516174, "answer_score": 0.48730049431324, "sibling_qid": "KOL-2018-08-3168-Q007", "sibling_text": "thrust bearing checks overhaul of thrust bearing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Overhaul of the thrust bearing", "cross_family": false } ] }, { "qid": "KOL-2026-10-4352-Q003", "text": "Chief officer reported there is a hole in the CH bilge line how will you find the hole ?", "family": "Pumps - Centrifugal & PD", "subtopic": "Bilge Line / Pump", "tid": "KOL-2026-10-4352", "tray": "review", "candidates": [ { "answer_id": "PHL-001", "score": 0.7855327725410461, "sibling_score": 0.7855327725410461, "answer_score": 0.592798489332199, "sibling_qid": "MUM-2025-09-2409-Q004", "sibling_text": "how to find hole in bilge line", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "There is a hole in a line — bilge suction main, sea-water line, starting-air line or steam line: your action as 2/E, and how you find the exact location", "cross_family": false }, { "answer_id": "CEM-BOX-002", "score": 0.5712453871965408, "sibling_score": null, "answer_score": 0.5712453871965408, "sibling_qid": "", "sibling_text": "hole or leak in the sea chest seawater line how do you approach it inform the chief engineer and bridge at once treat it as flooding first a repair job second compare the rate of ingress with bilge and gs pumping capacity watch free surface in the space", "sibling_family": "", "via": "answer_title", "answer_title": "Hole or leak in the sea chest / seawater line—how do you approach it?", "cross_family": false }, { "answer_id": "HULL-DD-003", "score": 0.4990871578454971, "sibling_score": null, "answer_score": 0.4990871578454971, "sibling_qid": "", "sibling_text": "3 side shell hole or hull breach at the waterline emergency action and repair flooding and watertight integrity are the immediate danger raise the alarm account for people close watertight boundaries identify and isolate the flooded compartment run bilge emergency bilge to control the level check adjacent spaces", "sibling_family": "", "via": "answer_title", "answer_title": "3. Side-shell hole or hull breach at the waterline: emergency action and repair", "cross_family": false } ] }, { "qid": "KOL-2026-10-4352-Q004", "text": "Scavenge fire and actions ?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Scavenging / Scavenge Fire", "tid": "KOL-2026-10-4352", "tray": "review", "candidates": [ { "answer_id": "SCAV-323-P01-001", "score": 0.7385883927345276, "sibling_score": 0.7385883927345276, "answer_score": 0.306599822640419, "sibling_qid": "KOC-2024-03-2043-Q007", "sibling_text": "scavenge fire actions", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Scavenge fire in the main engine — your actions", "cross_family": false }, { "answer_id": "SCAV-323-P01-005", "score": 0.6944242715835571, "sibling_score": 0.6944242715835571, "answer_score": null, "sibling_qid": "KOL-2025-11-3872-Q008", "sibling_text": "scavenge fire and its actions after fire actions", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Post-fire checks before restarting and loading", "cross_family": false }, { "answer_id": "SCAV-323-P01-004", "score": 0.3126293644309044, "sibling_score": null, "answer_score": 0.3126293644309044, "sibling_qid": "", "sibling_text": "causes of a scavenge fire in a two stroke main engine fire triangle in the scavenge box fuel oil carbon sludge oxygen scavenge air ignition blow by ignition source hot gas flame blow by past worn broken or sticking rings worn liner poor ring sealing", "sibling_family": "", "via": "answer_title", "answer_title": "Causes of a scavenge fire in a two-stroke main engine", "cross_family": false } ] }, { "qid": "KOL-2026-10-4352-Q005", "text": "Firing order how it is decided?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Firing Order / Pressure", "tid": "KOL-2026-10-4352", "tray": "review", "candidates": [ { "answer_id": "FOP-326-A-001", "score": 0.6802989840507507, "sibling_score": 0.6802989840507507, "answer_score": 0.3148529291152954, "sibling_qid": "KOL-2022-07-1922-Q003", "sibling_text": "firing order deciding principle", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "How is the firing order decided?", "cross_family": false }, { "answer_id": "FOP-326-A-003", "score": 0.6463790535926819, "sibling_score": 0.6463790535926819, "answer_score": null, "sibling_qid": "KOL-2025-12-4076-Q006", "sibling_text": "firing order importance", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Significance — power balance, stress, vibration", "cross_family": false }, { "answer_id": "FOP-326-A-002", "score": 0.6367754340171814, "sibling_score": 0.6367754340171814, "answer_score": null, "sibling_qid": "MUM-2026-07-3686-Q003", "sibling_text": "firing order", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "How is the firing order derived / “calculated” (e.g. 6-cylinder)?", "cross_family": false } ] }, { "qid": "KOL-2026-10-4352-Q006", "text": "How you will control the accommodation AC humidity? Where will you get all the parameters like dew point , humidity etc", "family": "Refrigeration & AC", "subtopic": "Humidity", "tid": "KOL-2026-10-4352", "tray": "review", "candidates": [ { "answer_id": "HUM-334-001", "score": 0.7258396744728088, "sibling_score": 0.7258396744728088, "answer_score": 0.539821782708168, "sibling_qid": "KOL-2018-08-1399-Q003", "sibling_text": "air conditioning system everything how does humidistat work", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "How is humidity controlled in a ship air-conditioning plant / accommodation AC?", "cross_family": false }, { "answer_id": "CFZ-330-001", "score": 0.6953665614128113, "sibling_score": 0.6953665614128113, "answer_score": null, "sibling_qid": "MUM-2026-07-3712-Q002", "sibling_text": "comfort temperature in air conditioning relative humidity", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Define the comfort zone and state its parameters and ranges", "cross_family": false }, { "answer_id": "CFZ-330-004", "score": 0.6785466074943542, "sibling_score": 0.6785466074943542, "answer_score": 0.5776629894971848, "sibling_qid": "KOL-2019-10-1483-Q003", "sibling_text": "details about ahu relative humidity comfort zone", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "AHU, relative humidity and psychrometric adjustment — bringing 30 °C / 70% air into the comfort zone; sweating and cooler drain water", "cross_family": false } ] }, { "qid": "KOL-2026-10-4352-Q007", "text": "Safe Matic arrangement in the steering gear?", "family": "Steering Gear & Hydraulics", "subtopic": "Steering Gear System", "tid": "KOL-2026-10-4352", "tray": "review", "candidates": [ { "answer_id": "STG-055-C-001", "score": 0.7528522610664368, "sibling_score": 0.7528522610664368, "answer_score": 0.47606409192085264, "sibling_qid": "KOL-2026-07-4249-Q006", "sibling_text": "safematic arrangement in steering gear", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Safematic steering gear, redundancy and the single-failure criterion", "cross_family": false }, { "answer_id": "SG-055-B-002", "score": 0.6951162815093994, "sibling_score": 0.6951162815093994, "answer_score": 0.41786550283432006, "sibling_qid": "KOL-2026-07-4272-Q004", "sibling_text": "fail safe arrangement in steering gear n", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Steering-gear alarms, trips and electrical / hydraulic safeties", "cross_family": false }, { "answer_id": "SGS-BF1-001", "score": 0.6945289373397827, "sibling_score": 0.6945289373397827, "answer_score": null, "sibling_qid": "MUM-2026-06-3607-Q008", "sibling_text": "safe matic in steering gear", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Safematic steering gear system — how it is asked in the oral, and what SOLAS actually requires", "cross_family": true } ] }, { "qid": "KOL-2026-10-4352-Q008", "text": "How will you overhaul mechanical foam extinguisher?", "family": "SOLAS - Fire Safety", "subtopic": "Foam System / Monitor", "tid": "KOL-2026-10-4352", "tray": "review", "candidates": [ { "answer_id": "FEXT-583-009", "score": 0.7683679461479187, "sibling_score": 0.7683679461479187, "answer_score": null, "sibling_qid": "KOL-2019-07-0294-Q004", "sibling_text": "overhauling foam type fire extinguisher", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Recharging and refilling — DCP, foam and CO2, and what can be done on board", "cross_family": false }, { "answer_id": "FOAM-570-002", "score": 0.6862887740135193, "sibling_score": 0.6862887740135193, "answer_score": 0.5101869702339172, "sibling_qid": "KOL-2019-10-3277-Q006", "sibling_text": "recharging foam extinguisher", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "How is a 9-litre foam extinguisher filled or recharged?", "cross_family": false }, { "answer_id": "DCP-B-003", "score": 0.6857791543006897, "sibling_score": 0.6857791543006897, "answer_score": 0.48928110003471376, "sibling_qid": "KOL-2018-08-0212-Q005", "sibling_text": "dcp extinguisher overhaul", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Portable DCP extinguisher — overhaul, survey, refilling and pressure-test precautions", "cross_family": false } ] }, { "qid": "KOL-2026-10-4352-Q009", "text": "Bedplate function, choke function , advantages?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Bedplate / A-Frame", "tid": "KOL-2026-10-4352", "tray": "new", "candidates": [ { "answer_id": "CHK-RM-001", "score": 0.5330173373222351, "sibling_score": 0.5330173373222351, "answer_score": 0.423445326089859, "sibling_qid": "KOL-2025-05-3783-Q007", "sibling_text": "function of chock", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What are chocks? Function, types, where fitted and how placed — which have the biggest area, and how does the bedplate connect to the hull?", "cross_family": false }, { "answer_id": "CHK-330-001", "score": 0.5328038930892944, "sibling_score": 0.5328038930892944, "answer_score": 0.4152267977595329, "sibling_qid": "KOC-2022-05-1785-Q007", "sibling_text": "function of chock", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What is the purpose and function of main engine chocks?", "cross_family": false }, { "answer_id": "CHK-330-004", "score": 0.5229498744010925, "sibling_score": 0.5229498744010925, "answer_score": 0.3787162289023399, "sibling_qid": "MUM-2026-03-1306-Q014S4", "sibling_text": "bed plate parts choking arrangement alignment of shaft intermediate shaft take out procedure", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Chocking arrangement on the main engine bedplate seating", "cross_family": false } ] }, { "qid": "KOL-2026-10-4352-Q010", "text": "Ni alloy advantages?", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator / Generator", "tid": "KOL-2026-10-4352", "tray": "review", "candidates": [ { "answer_id": "MATPROP-A-005", "score": 0.6568403244018555, "sibling_score": 0.6568403244018555, "answer_score": null, "sibling_qid": "KOL-2024-01-1770-Q004", "sibling_text": "advantages of nickel i said better resistance to wear and corrosion for the 1st tym he agreed ok thts correct but here comes", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Corrosion and degradation mechanisms", "cross_family": true }, { "answer_id": "MATPROP-A-002", "score": 0.567386269569397, "sibling_score": 0.567386269569397, "answer_score": 0.44019746184349057, "sibling_qid": "KOL-2021-07-1608-Q001", "sibling_text": "nikel is used as alloying what are the properties of nikel for which we use it on board", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Alloying elements and their property contribution", "cross_family": true }, { "answer_id": "COAT-543-004", "score": 0.5294114351272583, "sibling_score": 0.5294114351272583, "answer_score": null, "sibling_qid": "KOL-2024-10-3715-Q003", "sibling_text": "nickel coating why it is provided i said wear resistance withstand high thermal load corrosion resistance", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Stellite and nickel coatings — process and purpose", "cross_family": true } ] }, { "qid": "KOL-2026-10-4352-Q011", "text": "Oil in boiler gauge glass ,actions?", "family": "Boilers - Operations & Firing", "subtopic": "Scum / Blow Down", "tid": "KOL-2026-10-4352", "tray": "review", "candidates": [ { "answer_id": "SBD-001", "score": 0.8356601595878601, "sibling_score": 0.8356601595878601, "answer_score": 0.5997952312231064, "sibling_qid": "KOL-2016-11-3017-Q005", "sibling_text": "by bnd oil in boiler gauge glass course of actions", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "You find oil in the boiler gauge glass — causes, how you identify the source, and your actions as 2/E (including if manoeuvring). What is carryover?", "cross_family": false }, { "answer_id": "BCFS-001", "score": 0.5390402913093567, "sibling_score": null, "answer_score": 0.5390402913093567, "sibling_qid": "", "sibling_text": "detecting and responding to oil contamination in the hot well or cascade tank detect oil film or sheen on the observation tank surface smell oiliness in the gauge glass oil in water monitor alarm if fitted foaming or an unstable boiler water level never let oil into the boiler it forms an insulating film on heating surfaces causing local overheating tube bulging and failure and it makes the water ", "sibling_family": "", "via": "answer_title", "answer_title": "Detecting and responding to oil contamination in the hot well or cascade tank", "cross_family": false }, { "answer_id": "BLR-GG-001", "score": 0.5256382584571838, "sibling_score": null, "answer_score": 0.5256382584571838, "sibling_qid": "", "sibling_text": "how do you overhaul repair renew assemble or tighten a boiler gauge glass isolate first steam cock shut water cock shut drain open allow to cool work only on a dead glass strip evenly inspect glass for erosion etching cracks plus cocks ball check valves seats gland faces", "sibling_family": "", "via": "answer_title", "answer_title": "How do you overhaul, repair, renew, assemble or tighten a boiler gauge glass?", "cross_family": false } ] }, { "qid": "KOL-2026-10-4353-Q001", "text": "Interpole and magnetic locking ?", "family": "Electrical - Motors & Starters", "subtopic": "DC Motor / Commutator", "tid": "KOL-2026-10-4353", "tray": "review", "candidates": [ { "answer_id": "DCMOT-CMU-B-003", "score": 0.779413640499115, "sibling_score": 0.779413640499115, "answer_score": 0.39785111546516416, "sibling_qid": "KOL-2024-05-2713-Q004", "sibling_text": "describe magnetic locking and interpole", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Interpoles (commutating poles) & 'magnetic locking'", "cross_family": false }, { "answer_id": "AR-263-004", "score": 0.5919181704521179, "sibling_score": 0.5919181704521179, "answer_score": 0.30524124354124066, "sibling_qid": "KOC-2025-12-1678-Q007", "sibling_text": "interpoles", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "What are interpoles / compensating windings, and how do they help?", "cross_family": true }, { "answer_id": "IM-TSS-P01-001", "score": 0.359334659576416, "sibling_score": null, "answer_score": 0.359334659576416, "sibling_qid": "", "sibling_text": "skew and cogging skew rotor bars angled relative to the shaft axis by roughly one slot pitch purpose prevent cogging magnetic locking teeth alignment at start reduce crawling locking at a low harmonic speed and cut noise and torque ripple", "sibling_family": "", "via": "answer_title", "answer_title": "Skew and cogging", "cross_family": false } ] }, { "qid": "KOL-2026-10-4353-Q002", "text": "AVR SOLAS requirement ?", "family": "Electrical - Generator & Alternator", "subtopic": "AVR / Excitation", "tid": "KOL-2026-10-4353", "tray": "review", "candidates": [ { "answer_id": "AVR-EXC-H-004", "score": 0.7142594456672668, "sibling_score": 0.7142594456672668, "answer_score": 0.42684406638145445, "sibling_qid": "KOL-2026-10-4317-Q002", "sibling_text": "avr solas requirements", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "SOLAS / Class requirements for AVR voltage regulation", "cross_family": false }, { "answer_id": "SMSFR-001", "score": 0.3258865237236023, "sibling_score": null, "answer_score": 0.3258865237236023, "sibling_qid": "", "sibling_text": "what are the functional requirements of the ism code and the sms and the requirement for internal audit six functional requirements sit in ism code paragraph 1 4 the code is mandatory through solas chapter ix 1 a safety and environmental protection policy", "sibling_family": "", "via": "answer_title", "answer_title": "What are the functional requirements of the ISM Code and the SMS — and the requirement for internal audit?", "cross_family": false }, { "answer_id": "MOB-MKR-005", "score": 0.3188234120607376, "sibling_score": null, "answer_score": 0.3188234120607376, "sibling_qid": "", "sibling_text": "what is the solas requirement and regulation for the mob marker solas iii 7 1 3 is the regulation quote it by number not less than half of all lifebuoys self igniting lights lsa 2 1 2", "sibling_family": "", "via": "answer_title", "answer_title": "What is the SOLAS requirement and regulation for the MOB marker?", "cross_family": false } ] }, { "qid": "KOL-2026-10-4353-Q003", "text": "Emergency battery requirement and where it supply ?", "family": "Electrical - Batteries & DC Systems", "subtopic": "Emergency Battery / SOLAS", "tid": "KOL-2026-10-4353", "tray": "review", "candidates": [ { "answer_id": "EDG-P01-001", "score": 0.7746115326881409, "sibling_score": 0.7746115326881409, "answer_score": 0.5489032447338104, "sibling_qid": "KOL-2026-03-2978-Q005", "sibling_text": "emergency battery requirements", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "Emergency source of power — the SOLAS requirements", "cross_family": false }, { "answer_id": "bdc-p05-01", "score": 0.7567748427391052, "sibling_score": 0.7567748427391052, "answer_score": 0.5632333397865296, "sibling_qid": "CHE-2026-03-0360-Q004", "sibling_text": "why emergency battery supply required", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "CQ-BDC-022 Emergency battery on your ship — purpose, type, arrangement and rating Medium", "cross_family": false }, { "answer_id": "EMG-DG-P02-FINAL-2-001", "score": 0.7433628439903259, "sibling_score": 0.7433628439903259, "answer_score": null, "sibling_qid": "MUM-2023-04-1384-Q004", "sibling_text": "what loads supplied from emergency battery", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "Emergency generator loads and duration of emergency supply", "cross_family": false } ] }, { "qid": "KOL-2026-10-4353-Q004", "text": "Cascade control ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "PID Controller", "tid": "KOL-2026-10-4353", "tray": "review", "candidates": [ { "answer_id": "PID-CTRL-005", "score": 0.7291339635848999, "sibling_score": 0.7291339635848999, "answer_score": null, "sibling_qid": "CHE-2026-02-0336-Q007", "sibling_text": "cascade control", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Open-loop, closed-loop, cascade and other control types onboard", "cross_family": false }, { "answer_id": "CTRL-001", "score": 0.6994837522506714, "sibling_score": 0.6994837522506714, "answer_score": 0.44567697048187255, "sibling_qid": "KOL-2020-11-2409-Q003", "sibling_text": "cascade control working", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Cascade control — how it works", "cross_family": true }, { "answer_id": "CTRL-TL-008", "score": 0.44259361326694485, "sibling_score": null, "answer_score": 0.44259361326694485, "sibling_qid": "", "sibling_text": "cascade control the slave controller and split range control two controllers in series master primary sets the set point of slave secondary master output is the slave s set point not a direct valve signal", "sibling_family": "", "via": "answer_title", "answer_title": "Cascade control, the slave controller, and split-range control", "cross_family": false } ] }, { "qid": "KOL-2026-10-4353-Q005", "text": "Eddy current and how to reduce it ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Eddy Current Losses", "tid": "KOL-2026-10-4353", "tray": "review", "candidates": [ { "answer_id": "EDDY-CUR-002", "score": 0.6919496059417725, "sibling_score": 0.6919496059417725, "answer_score": 0.5408455491065979, "sibling_qid": "KOL-2025-07-0997-Q012", "sibling_text": "eddy current how to minimise it", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "How are eddy currents formed, and how are they minimized?", "cross_family": false }, { "answer_id": "XFMR-THY-E-001", "score": 0.6416428685188293, "sibling_score": 0.6416428685188293, "answer_score": 0.40532582104206083, "sibling_qid": "KOL-2024-10-2735-Q001", "sibling_text": "eddy current definition why it occurs and remedies", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Core / iron loss and eddy-current loss", "cross_family": false }, { "answer_id": "EDDY-CUR-001", "score": 0.592715859413147, "sibling_score": 0.592715859413147, "answer_score": 0.45848785638809203, "sibling_qid": "KOL-2026-01-2951-Q002", "sibling_text": "what is eddy current", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is an eddy current?", "cross_family": false } ] }, { "qid": "KOL-2026-10-4353-Q006", "text": "Application of zener diode and how it works ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Zener / Diode / Rectifier", "tid": "KOL-2026-10-4353", "tray": "review", "candidates": [ { "answer_id": "EPC-P02-01", "score": 0.7375601530075073, "sibling_score": 0.7375601530075073, "answer_score": 0.5564092606306076, "sibling_qid": "MUM-2026-06-3633-Q006", "sibling_text": "how it works what is zener barrier applications of zener diode", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a zener diode? Draw its symbol, explain its working principle, and draw and explain its characteristic curve including the zener (breakdown) voltage.", "cross_family": false }, { "answer_id": "EPC-P02-03", "score": 0.7231670618057251, "sibling_score": 0.7231670618057251, "answer_score": 0.5924814343452454, "sibling_qid": "KOL-2020-02-2368-Q002", "sibling_text": "what is zener diode and it s applications describe any one application of zener diode", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Where is a zener diode used on board and why — voltage regulator, AVR, clipper — and explain one application in detail.", "cross_family": false }, { "answer_id": "EPC-P01-01", "score": 0.7096692323684692, "sibling_score": 0.7096692323684692, "answer_score": null, "sibling_qid": "KOL-2018-11-1431-Q006", "sibling_text": "what is a zener diode it s uses", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a diode? Symbol, forward and reverse bias, and the characteristic curve", "cross_family": false } ] }, { "qid": "KOL-2026-10-4353-Q007", "text": "What is Avalanche breakdown?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Avalanche Breakdown", "tid": "KOL-2026-10-4353", "tray": "review", "candidates": [ { "answer_id": "EPC-P02-04", "score": 0.7557132840156555, "sibling_score": 0.7557132840156555, "answer_score": 0.4224940091371536, "sibling_qid": "MUM-2026-06-3487-Q009", "sibling_text": "avalanche breakdown explain", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is avalanche breakdown, how does it differ from zener breakdown, and in which diodes does each occur?", "cross_family": false }, { "answer_id": "TCS-059-P04-024", "score": 0.3223784506320953, "sibling_score": null, "answer_score": 0.3223784506320953, "sibling_qid": "", "sibling_text": "breakdown contributors not causes contributors underlying conditions that allow a breakdown versus the final failure event the examiner calls the cause neglected maintenance missed washing fouling", "sibling_family": "", "via": "answer_title", "answer_title": "Breakdown contributors (not causes)", "cross_family": false }, { "answer_id": "PRING-B-002", "score": 0.29769239127635955, "sibling_score": null, "answer_score": 0.29769239127635955, "sibling_qid": "", "sibling_text": "breakage seizure blow past failure symptoms breakage is usually the end of a chain that starts with lost sealing not a primary event classic chain ring sticks carbon lacquer blow past oil film burns micro seizure ring loads up and cracks", "sibling_family": "", "via": "answer_title", "answer_title": "Breakage, seizure, blow-past & failure symptoms", "cross_family": false } ] }, { "qid": "KOL-2026-10-4354-Q001", "text": "Type of ship ,engine ?", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "KOL-2026-10-4354", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8353667855262756, "sibling_score": 0.8353667855262756, "answer_score": null, "sibling_qid": "MUM-2025-08-2357-Q001", "sibling_text": "type of ship type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.8154363036155701, "sibling_score": 0.8154363036155701, "answer_score": null, "sibling_qid": "MUM-2026-07-3668-Q004", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "AC-VE-001", "score": 0.7843069434165955, "sibling_score": 0.7843069434165955, "answer_score": null, "sibling_qid": "MUM-2026-01-2904-Q001", "sibling_text": "what type of ship engine power and nomenclature", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Volumetric efficiency: define it, and if it drops how do you improve it (with bumping clearance)?", "cross_family": false } ] }, { "qid": "KOL-2026-10-4354-Q002", "text": "crosshead and guide shoe lubrication ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Crosshead Bearing", "tid": "KOL-2026-10-4354", "tray": "review", "candidates": [ { "answer_id": "XHD-BRG-C-004", "score": 0.785467267036438, "sibling_score": 0.785467267036438, "answer_score": 0.4884067416191101, "sibling_qid": "KOL-2025-01-1795-Q001", "sibling_text": "crosshead and guide shoe lubrication", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "D. Crosshead and guide-shoe lubrication: oil path, the no-load-reversal film problem, MAN vs Sulzer", "cross_family": false }, { "answer_id": "XHD-BRG-B-007", "score": 0.767197847366333, "sibling_score": 0.767197847366333, "answer_score": 0.5783352494239807, "sibling_qid": "KOL-2024-09-3709-Q001", "sibling_text": "cross head bearing survey crosshead guide shoe lubrication", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Guide and guide-shoe lubrication, and the oil path from sump to crosshead", "cross_family": false }, { "answer_id": "XHEAD-303-006", "score": 0.7423422932624817, "sibling_score": 0.7423422932624817, "answer_score": 0.6004688084125519, "sibling_qid": "MUM-2025-06-0976-Q005", "sibling_text": "crosshead lubrication and how oil is going to guide shoe", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead and guide-shoe lubrication, difficulties, telescopic pipe", "cross_family": false } ] }, { "qid": "KOL-2026-10-4354-Q003", "text": "VGT working? From where it takes feedback ?", "family": "SOLAS - Fire Safety", "subtopic": "Cargo Hold Fire", "tid": "KOL-2026-10-4354", "tray": "new", "candidates": [ { "answer_id": "CTRL-004", "score": 0.5402113199234009, "sibling_score": 0.5402113199234009, "answer_score": 0.26356315463781355, "sibling_qid": "KOC-2021-07-1142-Q006", "sibling_text": "where feed back is supplied", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Feedback in control systems — negative and positive", "cross_family": true }, { "answer_id": "VTA-TC-001", "score": 0.4560508728027344, "sibling_score": 0.4560508728027344, "answer_score": null, "sibling_qid": "KOL-2026-04-2057-Q002", "sibling_text": "vgt explain", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "What VTA / VGT is and how it works", "cross_family": true }, { "answer_id": "AUC-CTL-04", "score": 0.45025208592414856, "sibling_score": 0.45025208592414856, "answer_score": 0.2571528732776642, "sibling_qid": "KOL-2022-07-2586-Q005", "sibling_text": "what is ve feed back advantage of that", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Negative feedback in a control loop", "cross_family": true } ] }, { "qid": "KOL-2026-10-4354-Q004", "text": "Types of vibration and how to prevent it ?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Vibration / Balancing", "tid": "KOL-2026-10-4354", "tray": "review", "candidates": [ { "answer_id": "VIB-BAL-A-001", "score": 0.7395181059837341, "sibling_score": 0.7395181059837341, "answer_score": 0.504010021686554, "sibling_qid": "KOL-2024-12-1961-Q006", "sibling_text": "types of vibration how to prevent it", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "VIB-A-01 — Engine vibration — what it is, its types and causes, and how it is controlled", "cross_family": false }, { "answer_id": "VIB-BAL-A-006", "score": 0.6288629174232483, "sibling_score": 0.6288629174232483, "answer_score": 0.4516109347343445, "sibling_qid": "CHE-2026-02-0249-Q004", "sibling_text": "what are the types of vibration and vibration dampers explanation", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "VIB-A-06 — Types of vibration dampers and compensators, and where they are located", "cross_family": false }, { "answer_id": "VIB-BAL-B-001", "score": 0.617519736289978, "sibling_score": 0.617519736289978, "answer_score": 0.4338874191045761, "sibling_qid": "KOL-2017-07-1303-Q002", "sibling_text": "types of vibration in main engine axial vibration torsional torsional damper", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Torsional / viscous vibration damper: working and condition checks", "cross_family": false } ] }, { "qid": "KOL-2026-10-4354-Q005", "text": "Speed droop characteristics and how speed droop helps in paralleling of generator ?", "family": "Automation & Controls", "subtopic": "Governor (Mechanical / Electronic)", "tid": "KOL-2026-10-4354", "tray": "review", "candidates": [ { "answer_id": "DROOP-001", "score": 0.6677728295326233, "sibling_score": 0.6677728295326233, "answer_score": null, "sibling_qid": "KOC-2026-02-2090-Q010", "sibling_text": "speed droop in generator and it s purpose internal no questions", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Governor / speed droop — what, why, setting and formula", "cross_family": false }, { "answer_id": "GOV-P03-002", "score": 0.6507869362831116, "sibling_score": 0.6507869362831116, "answer_score": 0.5832479298114777, "sibling_qid": "MUM-2026-05-2977-Q009", "sibling_text": "speed droop in generator and it s purpose", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Droop, isochronous operation and load sharing", "cross_family": false }, { "answer_id": "DROOP-002", "score": 0.648867666721344, "sibling_score": 0.648867666721344, "answer_score": null, "sibling_qid": "KOL-2026-04-2057-Q003", "sibling_text": "speed droop characteristics", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Speed-droop characteristic — the curve and what it shows", "cross_family": false } ] }, { "qid": "KOL-2026-10-4354-Q006", "text": "Swelling and shrinkage of Boiler ?", "family": "Boilers - Operations & Firing", "subtopic": "Boiler Water Circulation", "tid": "KOL-2026-10-4354", "tray": "review", "candidates": [ { "answer_id": "DP-TX-006", "score": 0.8078281283378601, "sibling_score": 0.8078281283378601, "answer_score": 0.5649500370025634, "sibling_qid": "KOL-2025-08-2012-Q004", "sibling_text": "swell and shrink in boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler swell and shrink in relation to DP level measurement and control", "cross_family": false }, { "answer_id": "LWL-004", "score": 0.739225447177887, "sibling_score": 0.739225447177887, "answer_score": 0.5808118045330047, "sibling_qid": "KOL-2021-08-3446-Q003", "sibling_text": "what is swell and shrinkage how swell and shrinkage is nullified in boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "What are swell and shrinkage, and how are they nullified in the boiler?", "cross_family": false }, { "answer_id": "BLR-TUBE-P01-003", "score": 0.6544952988624573, "sibling_score": 0.6544952988624573, "answer_score": null, "sibling_qid": "KOL-2020-11-1557-Q002", "sibling_text": "small boiler tube expansion", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "02. Thermal expansion arrangements for boiler tubes", "cross_family": true } ] }, { "qid": "KOL-2026-10-4355-Q001", "text": "Type of ship ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2026-10-4355", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8368158936500549, "sibling_score": 0.8368158936500549, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8019043803215027, "sibling_score": 0.8019043803215027, "answer_score": 0.5472971469163894, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8006531000137329, "sibling_score": 0.8006531000137329, "answer_score": 0.5216498911380768, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "KOL-2026-10-4355-Q002", "text": "Tool metal ? ", "family": "", "subtopic": "", "tid": "KOL-2026-10-4355", "tray": "new", "candidates": [ { "answer_id": "SGB-212-010", "score": 0.5469989776611328, "sibling_score": 0.5469989776611328, "answer_score": null, "sibling_qid": "MUM-2026-05-3235-Q002", "sibling_text": "what is gun metal", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Gun metal", "cross_family": false }, { "answer_id": "LATHE-TD-002", "score": 0.536304235458374, "sibling_score": 0.536304235458374, "answer_score": 0.3849739104509354, "sibling_qid": "KOL-2025-03-3770-Q001", "sibling_text": "what is the material of cutting tool", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Lathe tools, tool setting, chucks and tailstock precautions", "cross_family": false }, { "answer_id": "TNK-SAFE-BF26-003", "score": 0.5265202522277832, "sibling_score": 0.5265202522277832, "answer_score": null, "sibling_qid": "MUM-2025-09-0471-Q003", "sibling_text": "tool used on tanker on deck brass has non sparking", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What safeties, including electrical safeties and Ex ratings, are provided on the deck of a tanker?", "cross_family": false } ] }, { "qid": "KOL-2026-10-4355-Q003", "text": "Bedplate material ?", "family": "MARPOL - General & Compliance", "subtopic": "Bunker Sample Storage", "tid": "KOL-2026-10-4355", "tray": "new", "candidates": [ { "answer_id": "FWFB-P02-007", "score": 0.6408945918083191, "sibling_score": 0.6408945918083191, "answer_score": null, "sibling_qid": "MUM-2026-05-3306-Q002", "sibling_text": "bedplate material types construction transverse longitudinal 3 girder etc material", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Transverse and longitudinal girders: arrangement and purpose", "cross_family": true }, { "answer_id": "BUNK-SAMP-004", "score": 0.5582109689712524, "sibling_score": 0.5582109689712524, "answer_score": null, "sibling_qid": "KOC-2025-02-2060-Q017", "sibling_text": "material", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Sample container, material, quantity, marking and bottles", "cross_family": false }, { "answer_id": "SHELL-PLT-B-002", "score": 0.5185433626174927, "sibling_score": 0.5185433626174927, "answer_score": null, "sibling_qid": "KOL-2025-09-1046-Q002", "sibling_text": "steeler plate", "sibling_family": "", "via": "sibling", "answer_title": "Stealer plate and strake nesting", "cross_family": false } ] }, { "qid": "KOL-2026-10-4355-Q004", "text": "Subcooling ?", "family": "Refrigeration & AC", "subtopic": "Sub-cooling / Superheat", "tid": "KOL-2026-10-4355", "tray": "review", "candidates": [ { "answer_id": "REF-CYC-006", "score": 0.7943864464759827, "sibling_score": 0.7943864464759827, "answer_score": 0.505777382850647, "sibling_qid": "MUM-2025-09-2848-Q020", "sibling_text": "sub cooling", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "6. Saturation temperature, subcooling, superheat and dryness fraction", "cross_family": false }, { "answer_id": "REF-SCSH-001", "score": 0.7875368595123291, "sibling_score": 0.7875368595123291, "answer_score": 0.5416633158922195, "sibling_qid": "MUM-2026-06-3494-Q006", "sibling_text": "sub cooling in refer", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Subcooling in refrigeration — meaning, purpose, significance and expected values", "cross_family": false }, { "answer_id": "REF-SCSH-003", "score": 0.5257855892181397, "sibling_score": null, "answer_score": 0.5257855892181397, "sibling_qid": "", "sibling_text": "subcooling and superheating together where they occur warm sea water and compressor liquid protection subcooling high side after the condenser condenser bottom receiver dedicated sub cooler or suction to liquid heat exchanger liquid below the condensing saturation temperature superheating low side in the evaporator tail and suction line vapour above the evaporating saturation temperature", "sibling_family": "", "via": "answer_title", "answer_title": "Subcooling and superheating together — where they occur, warm sea water, and compressor liquid protection", "cross_family": false } ] }, { "qid": "KOL-2026-10-4355-Q005", "text": "Gate valve checks during overhaul ?", "family": "General Marine Engineering", "subtopic": "Gate Valve", "tid": "KOL-2026-10-4355", "tray": "review", "candidates": [ { "answer_id": "GV-330-002", "score": 0.7762817740440369, "sibling_score": 0.7762817740440369, "answer_score": 0.5842216908931732, "sibling_qid": "KOL-2018-04-3140-Q003", "sibling_text": "gate valve overhaul n checks", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Gate valve overhaul, checks & the stuck / not-operating valve", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.635944128036499, "sibling_score": 0.635944128036499, "answer_score": null, "sibling_qid": "KOL-2026-01-3900-Q005", "sibling_text": "check on safety valve during overhaul", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": true }, { "answer_id": "SAV-002", "score": 0.5812200903892517, "sibling_score": 0.5812200903892517, "answer_score": null, "sibling_qid": "KOL-2018-04-3137-Q002", "sibling_text": "main start air v v overhaul how to check valve is not leaking", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Identifying and testing a leaking starting air valve", "cross_family": true } ] }, { "qid": "KOL-2026-10-4355-Q006", "text": "Ogee ring where it is fitted ?", "family": "Boilers - Construction & Components", "subtopic": "Ogee Ring", "tid": "KOL-2026-10-4355", "tray": "review", "candidates": [ { "answer_id": "OGEE-RING-001", "score": 0.6952781081199646, "sibling_score": 0.6952781081199646, "answer_score": 0.4347863495349884, "sibling_qid": "KOL-2025-07-1819-Q006", "sibling_text": "ogee ring how fitted", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "The ogee ring: what it is, where it sits, its purpose, and how it's formed and connected", "cross_family": false }, { "answer_id": "CYL-LINER-P02-009", "score": 0.3430488348007202, "sibling_score": null, "answer_score": 0.3430488348007202, "sibling_qid": "", "sibling_text": "l9 t044 part 02 g009high definition an unworn raised step or ledge in the bore at the top and sometimes bottom limit of ring travel cause the ring does not sweep the extreme top so metal above the top ring reversal point stays unworn while the swept band below wears leaving a ridge worse with heavy wear lower down", "sibling_family": "", "via": "answer_title", "answer_title": "L9 · T044-PART_02-G009High", "cross_family": false }, { "answer_id": "PRING-B-006", "score": 0.32573883831501005, "sibling_score": null, "answer_score": 0.32573883831501005, "sibling_qid": "", "sibling_text": "general oral questions oblique angular or stepped ring gap joint seals across the gap as it wears avoiding the straight blow by path of a plain butt cut the man b w cpr ring uses a gas tight double s lock finger lock joint engine top ring taller thicker than a compressor ring it takes far higher combustion pressure and temperature so it needs strength bearing area and heat transfer capacity the co", "sibling_family": "", "via": "answer_title", "answer_title": "General oral questions", "cross_family": false } ] }, { "qid": "KOL-2026-10-4355-Q007", "text": "Turbocharger water wash ?", "family": "Turbocharger", "subtopic": "TC Construction", "tid": "KOL-2026-10-4355", "tray": "review", "candidates": [ { "answer_id": "TC-WASH-002", "score": 0.8404070734977722, "sibling_score": 0.8404070734977722, "answer_score": null, "sibling_qid": "KOL-2026-09-4302-Q009", "sibling_text": "turbocharger washing wet washing water pressure", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "02. What water-wash pressure and turbocharger RPM / engine-load conditions are required?", "cross_family": false }, { "answer_id": "TC-WASH-001", "score": 0.8344893455505371, "sibling_score": 0.8344893455505371, "answer_score": 0.5924345195293427, "sibling_qid": "KOL-2018-09-0217-Q009", "sibling_text": "me turbocharger water washing", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "01. How is turbocharger wet / water washing carried out (ME or AE)?", "cross_family": false }, { "answer_id": "TC-WASH-003", "score": 0.8031545877456665, "sibling_score": 0.8031545877456665, "answer_score": 0.5777311325073242, "sibling_qid": "MUM-2026-06-3449-Q005", "sibling_text": "turbocharger washing", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "03. Explain wet washing and dry / grit washing of a turbocharger — method and precautions.", "cross_family": false } ] }, { "qid": "KOL-2026-10-4355-Q008", "text": "Purifier height adjustment ?", "family": "Purifier & Centrifuges", "subtopic": "Purifier Operation / Bowl", "tid": "KOL-2026-10-4355", "tray": "review", "candidates": [ { "answer_id": "PUR-DSL-002", "score": 0.7251659035682678, "sibling_score": 0.7251659035682678, "answer_score": 0.3919248268008232, "sibling_qid": "MUM-2026-06-3474-Q006", "sibling_text": "purifier height", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Purifier overflow after desludging — causes, and checking or adjusting bowl height", "cross_family": false }, { "answer_id": "PURIF-BOWL-P02-003", "score": 0.7208228707313538, "sibling_score": 0.7208228707313538, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q009", "sibling_text": "purifier vertical height measurement reason", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Vertical shaft, bowl height, bearings & load support — checks, adjustment, overhaul, renewal", "cross_family": false }, { "answer_id": "PUR-OPS-P01-002", "score": 0.699004054069519, "sibling_score": 0.699004054069519, "answer_score": 0.33910393714904785, "sibling_qid": "CHE-2026-03-0494-Q001", "sibling_text": "purifier overhaul vertical height what you will check", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Purifier — principle, working, and how the self-cleaning bowl closes", "cross_family": false } ] }, { "qid": "KOL-2026-10-4355-Q009", "text": "Crankpin bearing measurement ?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankpin Checks", "tid": "KOL-2026-10-4355", "tray": "review", "candidates": [ { "answer_id": "CRKPIN-P02-002", "score": 0.8258334994316101, "sibling_score": 0.8258334994316101, "answer_score": 0.624008697271347, "sibling_qid": "KOL-2024-07-1949-Q004", "sibling_text": "crankpin bearing how to measure clearance", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankpin bearing clearance — measurement and interpretation", "cross_family": false }, { "answer_id": "CRPIN-CHK-P01-001", "score": 0.7997151017189026, "sibling_score": 0.7997151017189026, "answer_score": 0.6208064317703247, "sibling_qid": "KOL-2016-08-1230-Q002", "sibling_text": "crank pin ovality how to measure", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankpin ovality — how it is measured and at what positions", "cross_family": false }, { "answer_id": "CRKPIN-P02-001", "score": 0.7952417135238647, "sibling_score": 0.7952417135238647, "answer_score": null, "sibling_qid": "MUM-2025-12-2517-Q001", "sibling_text": "crank pin bearing survey", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankpin (bottom-end) bearing — removal, overhaul and survey inspection", "cross_family": false } ] }, { "qid": "KOL-2026-10-4355-Q010", "text": "Micro meter zero setting ?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "", "tid": "KOL-2026-10-4355", "tray": "review", "candidates": [ { "answer_id": "MICR-002", "score": 0.7085456252098083, "sibling_score": 0.7085456252098083, "answer_score": 0.4960982888936996, "sibling_qid": "KOL-2026-07-4256-Q002", "sibling_text": "big c micrometer zero setting", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Zero setting, calibration, error check and trueness", "cross_family": false }, { "answer_id": "OMD-003", "score": 0.6299083232879639, "sibling_score": 0.6299083232879639, "answer_score": null, "sibling_qid": "MUM-2024-08-0189-Q004", "sibling_text": "omd zero setting calibration", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Explain the OMD working principle, its types and their differences, the electrical side, and zero setting and calibration.", "cross_family": true }, { "answer_id": "MICR-003", "score": 0.6106902360916138, "sibling_score": 0.6106902360916138, "answer_score": 0.4039908766746521, "sibling_qid": "KOL-2024-09-3709-Q005", "sibling_text": "liner calibration micometer zerro error setting and how to take reading", "sibling_family": "Gauges & Tools", "via": "sibling", "answer_title": "Cylinder liner calibration with the inside micrometer", "cross_family": true } ] }, { "qid": "KOL-2026-10-4356-Q001", "text": "Explain Parametric rolling and synchronous rolling ?", "family": "Ship Construction & Stability", "subtopic": "Parametric / Synchronous Rolling", "tid": "KOL-2026-10-4356", "tray": "review", "candidates": [ { "answer_id": "PAR-ROLL-007", "score": 0.6855307221412659, "sibling_score": 0.6855307221412659, "answer_score": 0.3783763751387596, "sibling_qid": "KOL-2026-07-4245-Q005", "sibling_text": "explain parametric rolling", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "07. Variant / garbled wording (declared interpretation: parametric rolling)", "cross_family": false }, { "answer_id": "PAR-ROLL-001", "score": 0.6855307221412659, "sibling_score": 0.6855307221412659, "answer_score": 0.37669645994901657, "sibling_qid": "MUM-2026-03-0810-Q001", "sibling_text": "explain parametric rolling", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "01. What is parametric rolling?", "cross_family": false }, { "answer_id": "PAR-ROLL-004", "score": 0.43708573281764984, "sibling_score": null, "answer_score": 0.43708573281764984, "sibling_qid": "", "sibling_text": "04 parametric vs synchronous rolling and the sequential prismatic variants synchronous direct forced resonance encounter period natural roll period 1 1 typically beam near beam seas driven by the wave s direct rolling moment parametric resonance from cyclic gm gz righting moment variation the principal container ship case is encounter period roll period 2 1 so stability varies at about twice the r", "sibling_family": "", "via": "answer_title", "answer_title": "04. Parametric vs synchronous rolling (and the ‘sequential / prismatic’ variants)", "cross_family": false } ] }, { "qid": "KOL-2026-10-4356-Q002", "text": "What conditions class certificate can be withdrawn ?", "family": "Surveys - Statutory", "subtopic": "Condition of Class", "tid": "KOL-2026-10-4356", "tray": "new", "candidates": [ { "answer_id": "CERT-LIST-P02-005", "score": 0.6171215176582336, "sibling_score": 0.6171215176582336, "answer_score": 0.34878102988004683, "sibling_qid": "KOL-2018-02-0150-Q001", "sibling_text": "class certificate criteria issue", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Class certificate / classification certificate", "cross_family": false }, { "answer_id": "COC-001", "score": 0.5886146426200867, "sibling_score": 0.5886146426200867, "answer_score": null, "sibling_qid": "MUM-2025-03-2273-Q006", "sibling_text": "class certificate vs condition of class", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is a Condition of Class? Give examples, say where it is found, how much time is given to rectify it, and what happens if it is not met in time.", "cross_family": false }, { "answer_id": "CERT-LIST-P01-001", "score": 0.5582550168037415, "sibling_score": 0.5582550168037415, "answer_score": null, "sibling_qid": "KOL-2026-08-4162-Q004", "sibling_text": "what are the certificates issued by the class", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "List the statutory certificates carried onboard a ship.", "cross_family": false } ] }, { "qid": "KOL-2026-10-4356-Q003", "text": "Hyper mist regulations ?", "family": "SOLAS - Fire Safety", "subtopic": "Sprinkler / Water Mist / Hi-Fog", "tid": "KOL-2026-10-4356", "tray": "review", "candidates": [ { "answer_id": "FIRE-P02-01", "score": 0.7760267853736877, "sibling_score": 0.7760267853736877, "answer_score": null, "sibling_qid": "KOC-2025-10-0681-Q004", "sibling_text": "hyper mist regulations", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist — SOLAS/FSS basis and ECR/machinery-space arrangement", "cross_family": false }, { "answer_id": "FIRE-P02-02", "score": 0.36761479526758195, "sibling_score": null, "answer_score": 0.36761479526758195, "sibling_qid": "", "sibling_text": "hypermist routine testing alarms and 2 e maintenance statutory anchor solas ii 2 reg 14 operational readiness and maintenance to the approved plan under reg 14 2 2 current imo maintenance guideline msc 1 circ 1432 as amended by msc 1 circ 1516 the framework for fss code fixed ff systems", "sibling_family": "", "via": "answer_title", "answer_title": "Hypermist — routine testing, alarms and 2/E maintenance", "cross_family": false }, { "answer_id": "FIRE-P02-04", "score": 0.3669352650642395, "sibling_score": null, "answer_score": 0.3669352650642395, "sibling_qid": "", "sibling_text": "hypermist vs sprinkler and co comparison and coexistence sprinkler fss ch 8 accommodation service spaces and control stations low pressure large droplets wet and cool single head activation on heat water mist fss ch 7 msc 1 circ 1387 for local application machinery space local application high pressure fine droplets evaporative cooling and steam envelope oxygen displacement", "sibling_family": "", "via": "answer_title", "answer_title": "Hypermist vs sprinkler and CO₂ — comparison and coexistence", "cross_family": false } ] }, { "qid": "KOL-2026-10-4356-Q004", "text": "ISM internal and external audit details ?", "family": "ISM Code", "subtopic": "ISM / SMS / Audit", "tid": "KOL-2026-10-4356", "tray": "review", "candidates": [ { "answer_id": "ISM-AUD-P02-007", "score": 0.691006600856781, "sibling_score": 0.691006600856781, "answer_score": 0.49610056877136227, "sibling_qid": "KOL-2026-05-4230-Q007", "sibling_text": "ism 3 difference between internal audit and external audit need to here internal detailed review", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Internal versus external ISM audit: purpose, difference and who does it", "cross_family": false }, { "answer_id": "ISM-AUDIT-P01-002", "score": 0.6447692513465881, "sibling_score": 0.6447692513465881, "answer_score": null, "sibling_qid": "KOL-2018-09-0221-Q003", "sibling_text": "additional audits in ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM/SMS audits and verifications — types, who conducts them, intervals and validity", "cross_family": false }, { "answer_id": "ISM-AUD-P02-001", "score": 0.6088487505912781, "sibling_score": 0.6088487505912781, "answer_score": null, "sibling_qid": "KOC-2024-03-0321-Q013", "sibling_text": "ism audit full", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM / SMS audit: how it is carried out and what objective evidence means", "cross_family": false } ] }, { "qid": "KOL-2026-10-4356-Q005", "text": "Cyber security regulation?", "family": "ISM Code", "subtopic": "Cyber Security", "tid": "KOL-2026-10-4356", "tray": "review", "candidates": [ { "answer_id": "CYBER-SEC-001", "score": 0.674362301826477, "sibling_score": 0.674362301826477, "answer_score": 0.5143409073352814, "sibling_qid": "KOC-2024-03-0313-Q004", "sibling_text": "cyber security explain", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is cyber security / cyber risk management onboard, and its requirements and elements?", "cross_family": false }, { "answer_id": "CYBER-SEC-003", "score": 0.6358440518379211, "sibling_score": 0.6358440518379211, "answer_score": 0.461820125579834, "sibling_qid": "KOC-2026-01-0781-Q003", "sibling_text": "five parts of cyber security managemnet", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "How would you implement and manage cyber security onboard, including cyber hygiene and the identify-protect-detect-respond-recover controls?", "cross_family": false }, { "answer_id": "CYBER-SEC-005", "score": 0.6356261432170868, "sibling_score": null, "answer_score": 0.6356261432170868, "sibling_qid": "", "sibling_text": "cyber security regulation", "sibling_family": "", "via": "answer_title", "answer_title": "Cyber security Regulation", "cross_family": false } ] }, { "qid": "KOL-2026-10-4356-Q006", "text": "STP tests ? Decider ques Srinivasan", "family": "MARPOL - Annex IV (Sewage)", "subtopic": "STP / Sewage Treatment", "tid": "KOL-2026-10-4356", "tray": "new", "candidates": [ { "answer_id": "STP-SEW-008", "score": 0.49709373712539673, "sibling_score": 0.49709373712539673, "answer_score": null, "sibling_qid": "KOC-2024-02-0301-Q008", "sibling_text": "stp working", "sibling_family": "MARPOL - Annex IV (Sewage)", "via": "sibling", "answer_title": "Working principle, reactions and recirculation", "cross_family": false }, { "answer_id": "STP-SEW-011", "score": 0.4726950526237488, "sibling_score": 0.4726950526237488, "answer_score": 0.2320885568857193, "sibling_qid": "KOC-2025-02-0545-Q007", "sibling_text": "stp criteria", "sibling_family": "MARPOL - Annex IV (Sewage)", "via": "sibling", "answer_title": "STP basics and onboard system requirements", "cross_family": false }, { "answer_id": "STP-SEW-005", "score": 0.4679340124130249, "sibling_score": 0.4679340124130249, "answer_score": null, "sibling_qid": "KOC-2023-01-0129-Q006", "sibling_text": "stp check during survey", "sibling_family": "MARPOL - Annex IV (Sewage)", "via": "sibling", "answer_title": "PSC and survey checks on the sewage system", "cross_family": false } ] }, { "qid": "KOL-2026-10-4356-Q007", "text": "CII ratings ? Decider ques Srinivasan", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "CII / Carbon Intensity", "tid": "KOL-2026-10-4356", "tray": "new", "candidates": [ { "answer_id": "CII-RATE-P02-001", "score": 0.5891710519790649, "sibling_score": 0.5891710519790649, "answer_score": 0.24062365889549256, "sibling_qid": "MUM-2026-06-3597-Q011", "sibling_text": "what is cii explain the ratings", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "1. The CII rating scale A to E — what each rating means", "cross_family": false }, { "answer_id": "CII-P01-002", "score": 0.3022889286279678, "sibling_score": null, "answer_score": 0.3022889286279678, "sibling_qid": "", "sibling_text": "when did cii enter into force when are ratings issued and the implementation timings in force 1 november 2022 the mepc 328 76 amendments mandatory from 1 january 2023 first reporting year 2023 first ratings issued 2024 on 2023 calendar year data", "sibling_family": "", "via": "answer_title", "answer_title": "When did CII enter into force, when are ratings issued, and the implementation timings", "cross_family": false }, { "answer_id": "EECS-018", "score": 0.2543893069028854, "sibling_score": null, "answer_score": 0.2543893069028854, "sibling_qid": "", "sibling_text": "18 the reduction factor what it is how it is obtained from when it applies z factor annual cut in required cii below the 2019 reference line required cii 2019 reference line reduced by the year s z", "sibling_family": "", "via": "answer_title", "answer_title": "18. The reduction factor — what it is, how it is obtained, from when it applies", "cross_family": false } ] }, { "qid": "KOL-2026-10-4357-Q001", "text": "IMO triple I code ?", "family": "IMO Structure & Conventions", "subtopic": "IMO / Committees / Codes", "tid": "KOL-2026-10-4357", "tray": "new", "candidates": [ { "answer_id": "IMO-5PIL-001", "score": 0.5692800879478455, "sibling_score": 0.5692800879478455, "answer_score": null, "sibling_qid": "MUM-2025-05-0252-Q004", "sibling_text": "structure of imo", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Structure of IMO — the main organs", "cross_family": false }, { "answer_id": "IMO-CC-P01-001", "score": 0.5692472457885742, "sibling_score": 0.5692472457885742, "answer_score": null, "sibling_qid": "KOC-2024-09-0418-Q002", "sibling_text": "structure of imo", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Explain the structure and organs of IMO — Assembly, Council, Committees and Secretariat.", "cross_family": false }, { "answer_id": "IMO-CODES-P03-002", "score": 0.4050831407308578, "sibling_score": null, "answer_score": 0.4050831407308578, "sibling_qid": "", "sibling_text": "imo overview structure committees certificates imsas ui and carbon strategy", "sibling_family": "", "via": "answer_title", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": false } ] }, { "qid": "KOL-2026-10-4357-Q002", "text": "Unsafe & unseaworthy ship ?", "family": "Maritime Law & Certificates", "subtopic": "Seaworthiness / Unseaworthy Ship", "tid": "KOL-2026-10-4357", "tray": "review", "candidates": [ { "answer_id": "SEAWTHY-002", "score": 0.7474247813224792, "sibling_score": 0.7474247813224792, "answer_score": 0.47371835112571714, "sibling_qid": "MUM-2025-09-0442-Q002", "sibling_text": "unseaworthy seaworthy ship", "sibling_family": "Maritime Law & Certificates", "via": "sibling", "answer_title": "What is a seaworthy vessel — and an unseaworthy one?", "cross_family": false }, { "answer_id": "SEAWTHY-001", "score": 0.7262060046195984, "sibling_score": 0.7262060046195984, "answer_score": 0.5125081896781921, "sibling_qid": "KOL-2026-10-4345-Q003", "sibling_text": "explain unseaworthy ships and unsafe ships", "sibling_family": "Maritime Law & Certificates", "via": "sibling", "answer_title": "Difference between an unsafe vessel and an unseaworthy vessel", "cross_family": false }, { "answer_id": "SEAWTHY-003", "score": 0.5443060487508774, "sibling_score": null, "answer_score": 0.5443060487508774, "sibling_qid": "", "sibling_text": "unsafe and unseaworthy vessel in a certificates and drydock discussion certificates evidence and police seaworthiness by themselves they do not make a vessel seaworthy necessary not sufficient unseaworthy not fit in every respect for the voyage s 3 69 unsafe condition risking life or the environment or substantially below standard s 307", "sibling_family": "", "via": "answer_title", "answer_title": "Unsafe and unseaworthy vessel — in a certificates and drydock discussion", "cross_family": false } ] }, { "qid": "KOL-2026-10-4357-Q003", "text": "IMO regulations on URN ?", "family": "Other Conventions", "subtopic": "Ballast Water Convention / BWM / BWMS", "tid": "KOL-2026-10-4357", "tray": "new", "candidates": [ { "answer_id": "SOLAS-OVW-011", "score": 0.5433118343353271, "sibling_score": 0.5433118343353271, "answer_score": null, "sibling_qid": "KOC-2026-04-0896-Q004", "sibling_text": "imo number regulation and places where it will be there", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "SOLAS Chapter XI-1 — special measures (safety): IMO number marking", "cross_family": true }, { "answer_id": "STCW-MAN-011", "score": 0.5314241647720337, "sibling_score": 0.5314241647720337, "answer_score": null, "sibling_qid": "KOL-2018-04-0172-Q002", "sibling_text": "white list of imo as per stcw", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is the White List under the STCW Convention?", "cross_family": false }, { "answer_id": "OTH-CONV-004", "score": 0.5203471183776855, "sibling_score": 0.5203471183776855, "answer_score": null, "sibling_qid": "KOL-2025-09-1037-Q007", "sibling_text": "pollution related conventions of imo other than marpol", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Pollution-related IMO conventions other than MARPOL", "cross_family": false } ] }, { "qid": "KOL-2026-10-4357-Q004", "text": "Pump room safeties ?", "family": "Cargo Ops - Tankers", "subtopic": "Pump Room Safety", "tid": "KOL-2026-10-4357", "tray": "review", "candidates": [ { "answer_id": "PUMPRM-B-004", "score": 0.7899666428565979, "sibling_score": 0.7899666428565979, "answer_score": 0.5374493926763534, "sibling_qid": "KOC-2022-03-0069-Q003", "sibling_text": "pump room safeties safeties on pump", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Safeties provided in a cargo pump room", "cross_family": false }, { "answer_id": "PUMPRM-B-001", "score": 0.5099519908428192, "sibling_score": null, "answer_score": 0.5099519908428192, "sibling_qid": "", "sibling_text": "entering the cargo pump room precautions and permit enclosed space and hazardous zone entry only under an enclosed space entry permit authorised never casual risk assessment and toolbox brief before anyone enters", "sibling_family": "", "via": "answer_title", "answer_title": "Entering the cargo pump room - precautions and permit", "cross_family": false }, { "answer_id": "PR-SAFE-A-004", "score": 0.5090496152639389, "sibling_score": null, "answer_score": 0.5090496152639389, "sibling_qid": "", "sibling_text": "pump room electrical safety lighting and portable equipment the cargo pump room is a zone 1 hazardous area iec 60092 502 an explosive atmosphere is likely in normal operation electrical equipment in the space is minimised fixed equipment must be certified for zone 1 flameproof ex d light fittings increased safety ex e intrinsically safe ex i and certified cable glands", "sibling_family": "", "via": "answer_title", "answer_title": "Pump-room electrical safety, lighting and portable equipment", "cross_family": false } ] }, { "qid": "KOL-2026-10-4357-Q005", "text": "incinerator requirements ?", "family": "Auxiliary Equipment", "subtopic": "Incinerator", "tid": "KOL-2026-10-4357", "tray": "review", "candidates": [ { "answer_id": "INCIN-003", "score": 0.7755545973777771, "sibling_score": 0.7755545973777771, "answer_score": null, "sibling_qid": "KOL-2026-09-4307-Q003", "sibling_text": "incinerator requirements", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Which MARPOL annex and code; batch vs continuous-feed", "cross_family": false }, { "answer_id": "INCIN-004", "score": 0.6587705016136169, "sibling_score": 0.6587705016136169, "answer_score": 0.48069487810134887, "sibling_qid": "KOL-2023-03-3594-Q002", "sibling_text": "incinerator according to marpol maintainenece", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Incinerator PMS, maintenance and PSC verification", "cross_family": false }, { "answer_id": "INCIN-002", "score": 0.652286946773529, "sibling_score": 0.652286946773529, "answer_score": null, "sibling_qid": "KOL-2026-02-1183-Q006", "sibling_text": "in incinerator what you can burn and what you can t burn give exact details with marpol", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "What you can and cannot burn under MARPOL", "cross_family": false } ] }, { "qid": "KOL-2026-10-4358-Q001", "text": "Type of ship sailed ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2026-10-4358", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8460181951522827, "sibling_score": 0.8460181951522827, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8450309634208679, "sibling_score": 0.8450309634208679, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7928885817527771, "sibling_score": 0.7928885817527771, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "KOL-2026-10-4358-Q002", "text": "Difference between commutator and slip rings ?", "family": "Electrical - Motors & Starters", "subtopic": "DC Motor / Commutator", "tid": "KOL-2026-10-4358", "tray": "review", "candidates": [ { "answer_id": "DCMOT-CMU-B-002", "score": 0.7512603998184204, "sibling_score": 0.7512603998184204, "answer_score": 0.46485398411750795, "sibling_qid": "KOL-2025-07-2813-Q001", "sibling_text": "difference between commutator and slip rings", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "The commutator — function, construction, purpose", "cross_family": false }, { "answer_id": "COMM-DC-005", "score": 0.6627156138420105, "sibling_score": 0.6627156138420105, "answer_score": 0.5967320382595062, "sibling_qid": "KOC-2022-11-1211-Q011", "sibling_text": "difference between slip ring and split ring", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Differentiate a slip ring from a split ring (commutator).", "cross_family": false }, { "answer_id": "ROT-STAT-B-002", "score": 0.6616670489311218, "sibling_score": 0.6616670489311218, "answer_score": 0.5011632144451141, "sibling_qid": "KOC-2026-03-1723-Q005", "sibling_text": "slip ring squirrel cage constructional differences", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Squirrel cage vs wound / slip-ring — differences, advantages, disadvantages", "cross_family": false } ] }, { "qid": "KOL-2026-10-4358-Q003", "text": "Types of cable ?", "family": "Turbocharger", "subtopic": "TC Construction", "tid": "KOL-2026-10-4358", "tray": "review", "candidates": [ { "answer_id": "CBL-INS-B-003", "score": 0.7565823793411255, "sibling_score": 0.7565823793411255, "answer_score": 0.5318020850419998, "sibling_qid": "MUM-2025-08-1629-Q005", "sibling_text": "types of cable", "sibling_family": "", "via": "sibling", "answer_title": "Types of cables used on board and their purposes", "cross_family": false }, { "answer_id": "CBL-INS-B-002", "score": 0.7375751733779907, "sibling_score": 0.7375751733779907, "answer_score": 0.5014612197875976, "sibling_qid": "KOC-2023-11-1296-Q010", "sibling_text": "types cables layers of cables", "sibling_family": "", "via": "sibling", "answer_title": "Layers and construction of a shipboard cable", "cross_family": false }, { "answer_id": "CABLE-INSUL-D-002", "score": 0.4829428881406784, "sibling_score": null, "answer_score": 0.4829428881406784, "sibling_qid": "", "sibling_text": "armouring sheathing and flame retardant frls cable three layers three roles insulation withstands voltage sheath protects the whole cable armour mechanical protection plus screen earth path sheath purpose protect the cores and insulation from oil water abrasion uv and mechanical damage and carry the flame retardant low smoke property marine sheath shf1 halogen free fr thermoplastic shf2 halogen fr", "sibling_family": "", "via": "answer_title", "answer_title": "Armouring, sheathing and flame-retardant / FRLS cable", "cross_family": false } ] }, { "qid": "KOL-2026-10-4358-Q004", "text": "Fog horn ?", "family": "Auxiliary Equipment", "subtopic": "air horn", "tid": "KOL-2026-10-4358", "tray": "new", "candidates": [ { "answer_id": "HKC-IHM-A-001", "score": 0.5735633373260498, "sibling_score": 0.5735633373260498, "answer_score": null, "sibling_qid": "KOC-2024-12-0485-Q013", "sibling_text": "honking convention", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Hong Kong Convention — what it is and what it requires", "cross_family": true }, { "answer_id": "FIRE-P02-02", "score": 0.5234369039535522, "sibling_score": 0.5234369039535522, "answer_score": null, "sibling_qid": "CHE-2026-02-0117-Q006", "sibling_text": "hi fog operational check", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist — routine testing, alarms and 2/E maintenance", "cross_family": true }, { "answer_id": "VENT-HD-003", "score": 0.5038862824440002, "sibling_score": 0.5038862824440002, "answer_score": null, "sibling_qid": "KOC-2024-01-0282-Q006", "sibling_text": "f o tank air vent diagram", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Fuel-oil / diesel-oil / bunker tank vent arrangements — draw and explain", "cross_family": false } ] }, { "qid": "KOL-2026-10-4358-Q005", "text": "How you will prepare for electrical survey ?", "family": "Surveys - Statutory", "subtopic": "Electrical Survey", "tid": "KOL-2026-10-4358", "tray": "review", "candidates": [ { "answer_id": "ELEC-SURV-004", "score": 0.7869505882263184, "sibling_score": 0.7869505882263184, "answer_score": 0.528159499168396, "sibling_qid": "MUM-2024-07-1437-Q003", "sibling_text": "electrical survey preparation", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Preparing & carrying out the survey as Second Engineer", "cross_family": false }, { "answer_id": "ELEC-SURV-006", "score": 0.7301236987113953, "sibling_score": 0.7301236987113953, "answer_score": null, "sibling_qid": "KOL-2016-07-2061-Q001", "sibling_text": "how to prepare emergency electrical eqpt for survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Emergency electrical equipment — survey preparation", "cross_family": false }, { "answer_id": "ELEC-SURV-003", "score": 0.7298951148986816, "sibling_score": 0.7298951148986816, "answer_score": null, "sibling_qid": "MUM-2022-11-1366-Q006", "sibling_text": "documents to be kept ready before electrical survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Documents, certificates & trend records", "cross_family": false } ] }, { "qid": "KOL-2026-10-4358-Q006", "text": "Alternator maintenance ?", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator Maintenance", "tid": "KOL-2026-10-4358", "tray": "review", "candidates": [ { "answer_id": "ALT-MAINT-A-001", "score": 0.8499947786331177, "sibling_score": 0.8499947786331177, "answer_score": 0.5722937256097793, "sibling_qid": "KOL-2023-05-2659-Q003", "sibling_text": "alternator routines maintenance", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Routine maintenance & care of a ship’s alternator", "cross_family": false }, { "answer_id": "ALT-MTN-B-001", "score": 0.6499437749385834, "sibling_score": null, "answer_score": 0.6499437749385834, "sibling_qid": "", "sibling_text": "routine onboard alternator maintenance checks clean air path dry low pressure air blow through cooler and filters clear keep winding temperature in band insulation resistance to earth on a megger trended over time investigate a falling trend do not wait for the alarm", "sibling_family": "", "via": "answer_title", "answer_title": "Routine onboard alternator maintenance checks", "cross_family": false }, { "answer_id": "BL-ALT-C-004", "score": 0.5880325317382812, "sibling_score": null, "answer_score": 0.5880325317382812, "sibling_qid": "", "sibling_text": "brushless alternator excitation maintenance ir test megger main stator main field and exciter windings trend it maintain space heaters test before re energising after a standstill rotating rectifier brushless specific test diodes for open short check the surge suppressor varistor over voltage protection a failed diode unstable or lost output", "sibling_family": "", "via": "answer_title", "answer_title": "Brushless alternator / excitation maintenance", "cross_family": false } ] }, { "qid": "KOL-2026-10-4358-Q007", "text": "Explain static excitation system ? Decider ques Srinivasan", "family": "Electrical - Generator & Alternator", "subtopic": "AVR / Excitation", "tid": "KOL-2026-10-4358", "tray": "new", "candidates": [ { "answer_id": "AVR-EXC-E-001", "score": 0.6306461691856384, "sibling_score": 0.6306461691856384, "answer_score": 0.42491655647754667, "sibling_qid": "KOL-2026-04-2981-Q006", "sibling_text": "static excitation system explain full", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "How does a static AVR / static excitation system work? (draw & explain)", "cross_family": false }, { "answer_id": "AVR-EXC-D-001", "score": 0.6065720915794373, "sibling_score": 0.6065720915794373, "answer_score": 0.4269344002008438, "sibling_qid": "KOC-2024-08-1380-Q008", "sibling_text": "static excitation system", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Static AVR / static excitation — types of AVR, and how the static system works", "cross_family": false }, { "answer_id": "BL-ALT-C-002", "score": 0.5375974178314209, "sibling_score": 0.5375974178314209, "answer_score": null, "sibling_qid": "KOL-2026-05-4243-Q010", "sibling_text": "brushless excitation system decider question", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "How to identify onboard that an alternator is brushless", "cross_family": false } ] }, { "qid": "KOL-2026-10-4358-Q008", "text": "You are in dd, now want to start your AE, but voltage not developing, reasons? Solution ? Decider ques Srinivasan", "family": "Electrical - Generator & Alternator", "subtopic": "Voltage Not Coming", "tid": "KOL-2026-10-4358", "tray": "review", "candidates": [ { "answer_id": "NO-VOLT-001", "score": 0.7105011343955994, "sibling_score": 0.7105011343955994, "answer_score": 0.47714455127716066, "sibling_qid": "MUM-2026-06-3445-Q004", "sibling_text": "as 2 e you started generator voltage not building cause action to restore", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "The 3/E reports the generator has started but no voltage is showing — reasons, and your actions as 2/E", "cross_family": false }, { "answer_id": "RES-MAG-005", "score": 0.680979311466217, "sibling_score": 0.680979311466217, "answer_score": null, "sibling_qid": "MUM-2022-10-1361-Q006", "sibling_text": "initialy avr not in function how voltage developing", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "How voltage builds up when the AVR is not yet in function and no power is available", "cross_family": false }, { "answer_id": "NO-VOLT-003", "score": 0.6790646910667419, "sibling_score": 0.6790646910667419, "answer_score": 0.537304139137268, "sibling_qid": "MUM-2024-06-1433-Q001", "sibling_text": "u r in drydock generator started voltage not developed what will u do", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Started after a long standby or in drydock and no voltage develops — causes, and how do you restore it?", "cross_family": false } ] }, { "qid": "KOL-2026-10-4359-Q001", "text": "Difference in IR test and PI test?", "family": "Ship Construction & Stability", "subtopic": "Inclining Experiment", "tid": "KOL-2026-10-4359", "tray": "review", "candidates": [ { "answer_id": "PI-211-003", "score": 0.70078444480896, "sibling_score": 0.70078444480896, "answer_score": 0.43507700860500337, "sibling_qid": "KOL-2025-12-2926-Q005", "sibling_text": "difference between pi and ir test", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "PI versus insulation resistance, and why the 1-minute and 10-minute readings are compared", "cross_family": true }, { "answer_id": "IRT-C-007", "score": 0.6722468137741089, "sibling_score": 0.6722468137741089, "answer_score": 0.3645503610372543, "sibling_qid": "KOL-2024-06-2715-Q005", "sibling_text": "ir testing how what is the difference between pi test and ir test", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Polarization Index (PI) — and PI vs spot IR", "cross_family": true }, { "answer_id": "PI-211-004", "score": 0.5304180383682251, "sibling_score": 0.5304180383682251, "answer_score": 0.40590713918209076, "sibling_qid": "KOL-2024-03-2702-Q005", "sibling_text": "pi test and dar test", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "PI and DAR — how they relate, their purpose, and acceptable values", "cross_family": true } ] }, { "qid": "KOL-2026-10-4359-Q002", "text": "Difference between Shaft grounding and Shaft earthing ?", "family": "Electrical - ICCP & Cathodic Protection", "subtopic": "Shaft Grounding Device", "tid": "KOL-2026-10-4359", "tray": "review", "candidates": [ { "answer_id": "SGD-001", "score": 0.7574419379234314, "sibling_score": 0.7574419379234314, "answer_score": 0.5369367241859436, "sibling_qid": "KOL-2022-10-2619-Q008", "sibling_text": "shaft grounding", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "What is shaft earthing / grounding, how is it connected, and why is it fitted?", "cross_family": false }, { "answer_id": "EF-SHAFT-ERES-P05-002", "score": 0.7175783514976501, "sibling_score": 0.7175783514976501, "answer_score": 0.51675965487957, "sibling_qid": "CHE-2026-08-3866-Q008", "sibling_text": "shaft earthing", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "Shaft earthing — purpose and working", "cross_family": false }, { "answer_id": "SHFT-ERTH-300-001", "score": 0.7074419260025024, "sibling_score": 0.7074419260025024, "answer_score": null, "sibling_qid": "KOL-2024-12-2748-Q005", "sibling_text": "shaft grounding", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Purpose, principle and arrangement", "cross_family": true } ] }, { "qid": "KOL-2026-10-4359-Q003", "text": "Cogging of induction motor ?", "family": "Electrical - Motors & Starters", "subtopic": "Induction Motor (General / Working)", "tid": "KOL-2026-10-4359", "tray": "review", "candidates": [ { "answer_id": "IM-GW-C-001", "score": 0.7981832027435303, "sibling_score": 0.7981832027435303, "answer_score": 0.5927071928977966, "sibling_qid": "KOL-2017-04-2125-Q006", "sibling_text": "induction motor constructional details cogging", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Cogging, crawling and harmonic effects in induction motors", "cross_family": false }, { "answer_id": "MNS-012", "score": 0.5971031010150909, "sibling_score": null, "answer_score": 0.5971031010150909, "sibling_qid": "", "sibling_text": "cogging and magnetic locking in an induction motor what they are where and why cogging and magnetic locking are the same phenomenon say so do not treat them as two cause rotor slots equal to or an integer multiple of stator slots", "sibling_family": "", "via": "answer_title", "answer_title": "Cogging and magnetic locking in an induction motor — what they are, where, and why", "cross_family": false }, { "answer_id": "ROTSTAT-C-001", "score": 0.5146431177854538, "sibling_score": null, "answer_score": 0.5146431177854538, "sibling_qid": "", "sibling_text": "rotor skewing cogging crawling harmonics skew rotor bars set at an angle to the shaft roughly one stator slot pitch representative figure design set three purposes smooth quiet torque less noise vibration suppress slot harmonics", "sibling_family": "", "via": "answer_title", "answer_title": "Rotor skewing, cogging, crawling & harmonics", "cross_family": false } ] }, { "qid": "KOL-2026-10-4359-Q004", "text": "Differential protection in power transformer what for ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Transformer Theory", "tid": "KOL-2026-10-4359", "tray": "new", "candidates": [ { "answer_id": "XFMR-THY-C-002", "score": 0.6178328990936279, "sibling_score": 0.6178328990936279, "answer_score": null, "sibling_qid": "KOL-2024-10-2736-Q001", "sibling_text": "tests on transformer open and short circuit", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Open-circuit and short-circuit tests on a transformer — how each is done, which side, and what each gives", "cross_family": false }, { "answer_id": "MSB-ESB-E-001", "score": 0.6125267148017883, "sibling_score": 0.6125267148017883, "answer_score": null, "sibling_qid": "KOL-2018-03-2184-Q004", "sibling_text": "protection provide in msb n function of each idmt and ins short ckt trip why provided both reverse power relay function", "sibling_family": "", "via": "sibling", "answer_title": "What safeties, protection trips, relays and alarms are provided on the MSB / ESB, and how are they tested?", "cross_family": false }, { "answer_id": "TFR-THY-F-002", "score": 0.6113464832305908, "sibling_score": 0.6113464832305908, "answer_score": 0.4511917412281036, "sibling_qid": "CHE-2026-02-0340-Q009", "sibling_text": "transformers isolation transformer why how it prevents shock", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Isolation transformer & onboard use", "cross_family": false } ] }, { "qid": "KOL-2026-10-4359-Q005", "text": "Voltage not developed in alternator what is reason ?(flash fileding)", "family": "Electrical - Generator & Alternator", "subtopic": "Residual Magnetism / Flashing", "tid": "KOL-2026-10-4359", "tray": "review", "candidates": [ { "answer_id": "RES-MAG-002", "score": 0.8188896179199219, "sibling_score": 0.8188896179199219, "answer_score": null, "sibling_qid": "MUM-2026-06-3489-Q003", "sibling_text": "alternator not developing voltage cross flashing up", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Generator started but no voltage developing — reasons, and your action as Second Engineer", "cross_family": false }, { "answer_id": "NO-VOLT-001", "score": 0.7951613068580627, "sibling_score": 0.7951613068580627, "answer_score": 0.5152838140726089, "sibling_qid": "KOC-2026-05-0001-Q012", "sibling_text": "alternator not developing voltage reasons", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "The 3/E reports the generator has started but no voltage is showing — reasons, and your actions as 2/E", "cross_family": false }, { "answer_id": "NO-VOLT-003", "score": 0.5336276590824127, "sibling_score": null, "answer_score": 0.5336276590824127, "sibling_qid": "", "sibling_text": "started after a long standby or in drydock and no voltage develops causes and how do you restore it two independent families insulation gone down while idle and excitation that has decayed or been disturbed test both finding one does not clear the other inspect and clean before you test debris salt hygroscopic dust and moisture on the winding outhang are what pull the reading down", "sibling_family": "", "via": "answer_title", "answer_title": "Started after a long standby or in drydock and no voltage develops — causes, and how do you restore it?", "cross_family": false } ] }, { "qid": "KOL-2026-10-4359-Q006", "text": "Alternator maintenance? Decider ques", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator Maintenance", "tid": "KOL-2026-10-4359", "tray": "review", "candidates": [ { "answer_id": "ALT-MAINT-A-001", "score": 0.7316650748252869, "sibling_score": 0.7316650748252869, "answer_score": 0.4934841811656952, "sibling_qid": "MUM-2026-05-3168-Q005", "sibling_text": "alternator maintenance before survey", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Routine maintenance & care of a ship’s alternator", "cross_family": false }, { "answer_id": "ALT-MAINT-C-001", "score": 0.7251526713371277, "sibling_score": 0.7251526713371277, "answer_score": null, "sibling_qid": "KOL-2016-05-2059-Q005", "sibling_text": "when and why u do alternator maintainance what are the maintainances air gap significane value etc", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. How is the alternator air gap checked, and what does an abnormal gap tell you?", "cross_family": false }, { "answer_id": "IR-TEST-305-002", "score": 0.7204083204269409, "sibling_score": 0.7204083204269409, "answer_score": null, "sibling_qid": "KOL-2026-07-4276-Q007", "sibling_text": "during alternator maintenance how will you protect the diodes wanted to hear jumper cable arrangement decider question", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Precautions, isolation and protecting the AVR, diodes and electronics", "cross_family": false } ] }, { "qid": "KOL-2026-10-4360-Q001", "text": "Type of ship sailed?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2026-10-4360", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8460181951522827, "sibling_score": 0.8460181951522827, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8450309634208679, "sibling_score": 0.8450309634208679, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7928885817527771, "sibling_score": 0.7928885817527771, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "KOL-2026-10-4360-Q002", "text": "Explain SEEMP all parts in detail ?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "SEEMP I/II/III", "tid": "KOL-2026-10-4360", "tray": "review", "candidates": [ { "answer_id": "AV6-P05-01", "score": 0.675032377243042, "sibling_score": 0.675032377243042, "answer_score": null, "sibling_qid": "KOC-2021-07-0011-Q016", "sibling_text": "seemp part 1 part 2 explain detail", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP Part II — IMO DCS plan and contents", "cross_family": false }, { "answer_id": "A6-NSEC-005", "score": 0.6638420224189758, "sibling_score": 0.6638420224189758, "answer_score": null, "sibling_qid": "KOC-2024-08-0390-Q002", "sibling_text": "explain seemp part", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP — Part I, II & III", "cross_family": false }, { "answer_id": "SEEMP-123-B-003", "score": 0.608742892742157, "sibling_score": 0.608742892742157, "answer_score": null, "sibling_qid": "KOL-2026-02-1188-Q004", "sibling_text": "seemp full explain eeoi explain", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Where SEEMP fits in MARPOL Annex VI, and its certification", "cross_family": false } ] }, { "qid": "KOL-2026-10-4360-Q003", "text": "For an enclosed space what are all the gases that we measure before make an entry ?", "family": "Risk & Safety Management", "subtopic": "Enclosed Space Entry", "tid": "KOL-2026-10-4360", "tray": "review", "candidates": [ { "answer_id": "ESE-P01-009", "score": 0.7674221396446228, "sibling_score": 0.7674221396446228, "answer_score": 0.5760110914707184, "sibling_qid": "KOC-2021-07-0005-Q005", "sibling_text": "enclosed space entry gas parameters what kind of instruments", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "Atmosphere checks, gases to test and safe entry limits", "cross_family": false }, { "answer_id": "ESE-P01-001", "score": 0.7496927380561829, "sibling_score": 0.7496927380561829, "answer_score": null, "sibling_qid": "KOL-2017-02-0064-Q002", "sibling_text": "definition for enclosed space exact definition enclosed space entry procedure in detail what gases are found in an enclosed space what concentration is allowed for man entry", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "Definition and criteria of an enclosed space", "cross_family": false }, { "answer_id": "ESE-P02-002", "score": 0.7381781935691833, "sibling_score": 0.7381781935691833, "answer_score": null, "sibling_qid": "KOC-2025-10-1583-Q008", "sibling_text": "enclosed space entry what all gas u check and values how o2analyser works", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "ESE-P02-02. Oxygen analyser: working principle and calibration", "cross_family": false } ] }, { "qid": "KOL-2026-10-4360-Q004", "text": "What is the purpose of time delay unit in Fixed CO2 system, how time delay help in positive opening of master valve ?", "family": "SOLAS - Fire Safety", "subtopic": "CO2 System", "tid": "KOL-2026-10-4360", "tray": "review", "candidates": [ { "answer_id": "CO2-SYS-005", "score": 0.7511463761329651, "sibling_score": 0.7511463761329651, "answer_score": 0.44439907371997833, "sibling_qid": "CHE-2025-08-0015-Q008", "sibling_text": "time delay unit in co2 what happen if u open master valve after opening bottle operating valve", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 system safeties, CO2-room requirements, alarms and ventilation", "cross_family": false }, { "answer_id": "CO2-SYS-001", "score": 0.6982775926589966, "sibling_score": 0.6982775926589966, "answer_score": null, "sibling_qid": "KOL-2019-02-0261-Q002", "sibling_text": "co 2 discharge procedure for machinery space co2 manifold fittings purpose of time delay unit", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 release procedure, shutdowns, re-entry and casualty-use decisions", "cross_family": false }, { "answer_id": "CO2-SYS-006", "score": 0.6913885474205017, "sibling_score": 0.6913885474205017, "answer_score": null, "sibling_qid": "KOC-2024-12-0491-Q003", "sibling_text": "purpose of delay valve in co2 system lot of x", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 bottles, manifolds, pilot cylinders and valve components", "cross_family": false } ] }, { "qid": "KOL-2026-10-4360-Q005", "text": "CO2 10 yearly maintenance ?", "family": "SOLAS - Fire Safety", "subtopic": "CO2 System", "tid": "KOL-2026-10-4360", "tray": "review", "candidates": [ { "answer_id": "CO2-SYS-002", "score": 0.813565194606781, "sibling_score": 0.813565194606781, "answer_score": 0.4065948516130447, "sibling_qid": "KOC-2025-03-0556-Q003", "sibling_text": "co2 10 yearly maintenance", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 maintenance, inspection, testing and survey routines", "cross_family": false }, { "answer_id": "CO2-SYS-P06-001", "score": 0.77351313829422, "sibling_score": 0.77351313829422, "answer_score": 0.4335886538028717, "sibling_qid": "MUM-2025-06-0310-Q007", "sibling_text": "10 yearly maintenance of co2 system", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 fixed system — full maintenance and inspection schedule (weekly to 10-yearly, and the revised cylinder-test regime)", "cross_family": false }, { "answer_id": "EGCS-393-004", "score": 0.36683302521705624, "sibling_score": null, "answer_score": 0.36683302521705624, "sibling_qid": "", "sibling_text": "egcs maintenance and the safety arrangements to work on it routine maintenance nozzle and demister cleaning analyser sensor calibration ph turbidity so2 co2 pump and seal service naoh dosing system checks washwater treatment hydrocyclone sludge landed ashore inspection tower internals and packing maker class approved corrosion resistant linings alloys for example gre grp or high alloy for acid cor", "sibling_family": "", "via": "answer_title", "answer_title": "EGCS maintenance and the safety arrangements to work on it", "cross_family": false } ] }, { "qid": "KOL-2026-10-4360-Q006", "text": "static and dynamic stability of a ship ?", "family": "Ship Construction & Stability", "subtopic": "Static / Dynamic Stability/damage stability", "tid": "KOL-2026-10-4360", "tray": "review", "candidates": [ { "answer_id": "STAB-SD-C-001", "score": 0.733312726020813, "sibling_score": 0.733312726020813, "answer_score": null, "sibling_qid": "MUM-2026-08-3835-Q006", "sibling_text": "static stability dynamic stability", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Static stability vs dynamic stability — and how each is measured", "cross_family": false }, { "answer_id": "STAB-SD-A-002", "score": 0.7031038403511047, "sibling_score": 0.7031038403511047, "answer_score": null, "sibling_qid": "KOC-2022-11-0110-Q004", "sibling_text": "stability booklet content explain how each one maintains the stability of the ship", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "The stability booklet — contents and use", "cross_family": false }, { "answer_id": "STAB-B-001", "score": 0.7030218839645386, "sibling_score": 0.7030218839645386, "answer_score": 0.5986358880996704, "sibling_qid": "KOC-2025-06-0604-Q017", "sibling_text": "what affects dynamic stability of a ship", "sibling_family": "", "via": "sibling", "answer_title": "Dynamic stability — definition, physical meaning, and the IS Code criteria", "cross_family": false } ] }, { "qid": "KOL-2026-10-4360-Q007", "text": "CLC 92 protocol ? Decider ques Srinivasan ", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "MRV / DCS", "tid": "KOL-2026-10-4360", "tray": "new", "candidates": [ { "answer_id": "CLC-CIV-A-001", "score": 0.4056817293167114, "sibling_score": 0.4056817293167114, "answer_score": 0.24126387387514114, "sibling_qid": "MUM-2022-08-0036-Q003", "sibling_text": "3 clc 92 convention", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "CLC Convention — objective, scope and shipowner liability", "cross_family": true }, { "answer_id": "IMODCS-001", "score": 0.3889050781726837, "sibling_score": 0.3889050781726837, "answer_score": null, "sibling_qid": "KOL-2026-02-1191-Q006", "sibling_text": "isps code srinivasa sir decider what are all the data for imo dcs key ans hours underway", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is the IMO DCS? What data is collected, over what period, and what are the “gradings”?", "cross_family": false }, { "answer_id": "IMODCS-003", "score": 0.38279181718826294, "sibling_score": 0.38279181718826294, "answer_score": null, "sibling_qid": "KOL-2026-07-4267-Q006", "sibling_text": "what data sent for imo dcs decider question", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "How is the DCS report submitted — company, flag State, IMO — and how does it relate to the SEEMP?", "cross_family": false } ] }, { "qid": "KOL-2026-10-4361-Q001", "text": "Function 3 written paper full name ?", "family": "IMO Structure & Conventions", "subtopic": "IMO / Committees / Codes", "tid": "KOL-2026-10-4361", "tray": "new", "candidates": [ { "answer_id": "ENG-NOM-005", "score": 0.4689182639122009, "sibling_score": 0.4689182639122009, "answer_score": null, "sibling_qid": "MUM-2026-06-3513-Q002", "sibling_text": "full nomenclature", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true }, { "answer_id": "SEEMP-123-B-001", "score": 0.46637290716171265, "sibling_score": 0.46637290716171265, "answer_score": null, "sibling_qid": "KOC-2026-03-0880-Q002", "sibling_text": "function 3 contents", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SEEMP Part III — the ship's operational carbon-intensity (CII) plan", "cross_family": false }, { "answer_id": "IMO-CODES-P03-002", "score": 0.4642895758152008, "sibling_score": 0.4642895758152008, "answer_score": null, "sibling_qid": "KOC-2026-04-0895-Q002", "sibling_text": "function name", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": false } ] }, { "qid": "KOL-2026-10-4361-Q002", "text": "Condition of assignment ?", "family": "Surveys - Statutory", "subtopic": "Condition of Class", "tid": "KOL-2026-10-4361", "tray": "review", "candidates": [ { "answer_id": "LLC-SUR-POA-3-FINAL-001", "score": 0.8769838213920593, "sibling_score": 0.8769838213920593, "answer_score": 0.2942327782511711, "sibling_qid": "CHE-2026-05-0600-Q008", "sibling_text": "condition of assignment", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Conditions of assignment of freeboard", "cross_family": false }, { "answer_id": "COC-002", "score": 0.41137418448925017, "sibling_score": null, "answer_score": 0.41137418448925017, "sibling_qid": "", "sibling_text": "what is the difference between a condition of class and a condition of assignment condition of class class regime iacs a specific repair survey measure within a time limit to retain class defect driven on the survey status overdue society s suspension procedure condition of assignment statutory international convention on load lines 1966 chapter ii the conditions of assignment of freeboard traditi", "sibling_family": "", "via": "answer_title", "answer_title": "What is the difference between a Condition of Class and a Condition of Assignment?", "cross_family": false }, { "answer_id": "LO-TEST-P02-004", "score": 0.3175545334815979, "sibling_score": null, "answer_score": 0.3175545334815979, "sibling_qid": "", "sibling_text": "judging lo fit for use changing ordering and substituting between machinery fit for use is condition based by analysis against the maker s condemning limits not just running hours lab parameters viscosity grade drift bn alkaline reserve water insolubles oxidation flash point fuel dilution wear metals icp tan where relevant", "sibling_family": "", "via": "answer_title", "answer_title": "Judging LO fit-for-use; changing, ordering and substituting between machinery", "cross_family": false } ] }, { "qid": "KOL-2026-10-4361-Q003", "text": "Type of keel ?", "family": "SOLAS", "subtopic": "Keel & Framing", "tid": "KOL-2026-10-4361", "tray": "review", "candidates": [ { "answer_id": "KEEL-FRM-B-001", "score": 0.7302598357200623, "sibling_score": 0.7302598357200623, "answer_score": 0.5501777976751328, "sibling_qid": "MUM-2026-02-0742-Q005", "sibling_text": "type of keels", "sibling_family": "", "via": "sibling", "answer_title": "Types of keel and keel selection", "cross_family": false }, { "answer_id": "KEEL-FRM-B-002", "score": 0.7122963666915894, "sibling_score": 0.7122963666915894, "answer_score": 0.4829766809940338, "sibling_qid": "MUM-2026-09-3918-Q005", "sibling_text": "what are the types of keels explain the purpose of a duct keel", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Duct keel and keel arrangements", "cross_family": false }, { "answer_id": "SHELL-PLT-B-003", "score": 0.48200874626636503, "sibling_score": null, "answer_score": 0.48200874626636503, "sibling_qid": "", "sibling_text": "garboard and bilge strakes garboard strake bottom shell strake adjacent to the keel plate each side the a strake first lettered outboard of the keel why it matters beside the keel centre girder carries dry docking block grounding loads ties bottom plating to the keel thick amidships tapering to the ends pounding region forward an exception", "sibling_family": "", "via": "answer_title", "answer_title": "Garboard and bilge strakes", "cross_family": false } ] }, { "qid": "KOL-2026-10-4361-Q004", "text": "Slip of propeller, which affect slip ?", "family": "Shafting, Propeller & Rudder", "subtopic": "Stern Tube / Shafting / Propeller / Rudder", "tid": "KOL-2026-10-4361", "tray": "review", "candidates": [ { "answer_id": "SHAFT-CPP-002", "score": 0.7160741686820984, "sibling_score": 0.7160741686820984, "answer_score": 0.5358458280563354, "sibling_qid": "KOC-2026-09-2165-Q002", "sibling_text": "propeller slip", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "2. Propeller slip, pitch & pitch measurement", "cross_family": false }, { "answer_id": "SPR-STERN-005", "score": 0.7157986760139465, "sibling_score": 0.7157986760139465, "answer_score": 0.4854034334421158, "sibling_qid": "KOC-2025-04-0932-Q001", "sibling_text": "propeller slip", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Slip, wake, wake speed & speed of advance", "cross_family": false }, { "answer_id": "SPR-STERN-004", "score": 0.646663248538971, "sibling_score": 0.646663248538971, "answer_score": 0.5020769894123077, "sibling_qid": "KOL-2022-03-3523-Q004", "sibling_text": "skew of propeller", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Propeller rake & skew", "cross_family": false } ] }, { "qid": "KOL-2026-10-4361-Q005", "text": "Addition safety measure for bulk carrier ?", "family": "Cargo Ops - Bulk Carriers", "subtopic": "IMSBC / TML", "tid": "KOL-2026-10-4361", "tray": "review", "candidates": [ { "answer_id": "SOLAS12-BC-B-001", "score": 0.83637535572052, "sibling_score": 0.83637535572052, "answer_score": 0.5669277548789978, "sibling_qid": "MUM-2026-06-3436-Q003", "sibling_text": "additional safety measures in bulk carrier", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Additional safety measures for bulk carriers (SOLAS Chapter XII)", "cross_family": false }, { "answer_id": "BC-IMSBC-001", "score": 0.7940080761909485, "sibling_score": 0.7940080761909485, "answer_score": null, "sibling_qid": "MUM-2026-06-3541-Q003", "sibling_text": "what additional safety of bulk carrier", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "1. Bulk carrier safety requirements — SOLAS Chapter XII and recent additions", "cross_family": false }, { "answer_id": "SOLAS12-BC-F-002", "score": 0.7548747658729553, "sibling_score": 0.7548747658729553, "answer_score": null, "sibling_qid": "KOL-2023-03-0721-Q005", "sibling_text": "add bulk carrier safety", "sibling_family": "", "via": "sibling", "answer_title": "Constructional features & structural peculiarity (incl. vs tanker holds)", "cross_family": false } ] }, { "qid": "KOL-2026-10-4362-Q001", "text": "Explain Isolation transformer?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Transformer Theory", "tid": "KOL-2026-10-4362", "tray": "review", "candidates": [ { "answer_id": "TFR-THY-F-002", "score": 0.726646363735199, "sibling_score": 0.726646363735199, "answer_score": 0.4854289174079895, "sibling_qid": "MUM-2026-09-3986-Q004", "sibling_text": "explain isolation transformer", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Isolation transformer & onboard use", "cross_family": false }, { "answer_id": "TFR-THY-F-004", "score": 0.4589396774768829, "sibling_score": null, "answer_score": 0.4589396774768829, "sibling_qid": "", "sibling_text": "auto transformer principle onboard application single tapped winding part common to primary and secondary energy byconduction induction no galvanic isolation primary and secondary electrically connected vs the isolation transformer", "sibling_family": "", "via": "answer_title", "answer_title": "Auto-transformer principle & onboard application", "cross_family": false }, { "answer_id": "XFMR-THY-D-001", "score": 0.399791544675827, "sibling_score": null, "answer_score": 0.399791544675827, "sibling_qid": "", "sibling_text": "transformer principle and working static device energy transfer bymutual induction no moving parts two windings primary secondary on a common magnetic core core islaminated grain oriented silicon steelto cut eddy current and hysteresis iron loss", "sibling_family": "", "via": "answer_title", "answer_title": "Transformer — principle and working", "cross_family": false } ] }, { "qid": "KOL-2026-10-4362-Q002", "text": "Explain Current transformer?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "PT / CT", "tid": "KOL-2026-10-4362", "tray": "review", "candidates": [ { "answer_id": "PT-CT-001", "score": 0.8651676774024963, "sibling_score": 0.8651676774024963, "answer_score": 0.6371488988399505, "sibling_qid": "MUM-2026-07-3699-Q008", "sibling_text": "explain current transformer", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Current transformer — what it is, working and diagram", "cross_family": false }, { "answer_id": "PT-CT-003", "score": 0.833873450756073, "sibling_score": 0.833873450756073, "answer_score": 0.575625741481781, "sibling_qid": "KOL-2026-02-2963-Q004", "sibling_text": "explain current transformer application", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "CT and PT instrument transformers — purpose, uses and differences", "cross_family": false }, { "answer_id": "GMCM-583-A-009", "score": 0.548469054698944, "sibling_score": null, "answer_score": 0.548469054698944, "sibling_qid": "", "sibling_text": "09 the clamp tong meter working principle types and why only a single conductor is clamped rigid jaw ac clamp a split core current transformer the clamped conductor is the single turn primary no electrical connection to the circuit it reads live and running without breaking in", "sibling_family": "", "via": "answer_title", "answer_title": "09. The clamp (tong) meter — working principle, types, and why only a single conductor is clamped", "cross_family": false } ] }, { "qid": "KOL-2026-10-4362-Q003", "text": "Forward bias, Avalanche ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Avalanche Breakdown", "tid": "KOL-2026-10-4362", "tray": "new", "candidates": [ { "answer_id": "EPC-P02-04", "score": 0.5713613629341125, "sibling_score": 0.5713613629341125, "answer_score": 0.3618432849645615, "sibling_qid": "KOL-2026-10-4316-Q005", "sibling_text": "what is avalanche breakdown internal ques srinivasan", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is avalanche breakdown, how does it differ from zener breakdown, and in which diodes does each occur?", "cross_family": false }, { "answer_id": "SCR-306-A-002", "score": 0.4006073862314224, "sibling_score": null, "answer_score": 0.4006073862314224, "sibling_qid": "", "sibling_text": "characteristics and operating principle three regions forward blocking forward conduction reverse blocking forward blocking anode ve no trigger j2 reverse biased small forward leakage up to the forward breakover voltage", "sibling_family": "", "via": "answer_title", "answer_title": "Characteristics and operating principle", "cross_family": false }, { "answer_id": "TCAP-B-002", "score": 0.3511061757802963, "sibling_score": null, "answer_score": 0.3511061757802963, "sibling_qid": "", "sibling_text": "faithful amplification the conditions faithful amplification output is a magnified replica same shape no clipping no distortion condition 1 base emitter junction forward biased throughout the entire signal swing", "sibling_family": "", "via": "answer_title", "answer_title": "Faithful amplification — the conditions", "cross_family": false } ] }, { "qid": "KOL-2026-10-4362-Q004", "text": "where reverse bias used on board ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Zener / Diode / Rectifier", "tid": "KOL-2026-10-4362", "tray": "new", "candidates": [ { "answer_id": "EPC-P01-02", "score": 0.5061514377593994, "sibling_score": 0.5061514377593994, "answer_score": null, "sibling_qid": "MUM-2025-12-1793-Q003", "sibling_text": "diode and use onboard", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Types of diodes, and where diodes are used on board", "cross_family": false }, { "answer_id": "EPC-P01-03", "score": 0.5054485201835632, "sibling_score": 0.5054485201835632, "answer_score": null, "sibling_qid": "KOL-2018-08-2217-Q003", "sibling_text": "where all places rectifiers used onboard more more more", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Rectifiers — definition, types, and where they are used on board", "cross_family": false }, { "answer_id": "EPC-P01-01", "score": 0.4907154440879822, "sibling_score": 0.4907154440879822, "answer_score": null, "sibling_qid": "KOL-2025-12-2926-Q006", "sibling_text": "fwd bias and reverse bias difference", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a diode? Symbol, forward and reverse bias, and the characteristic curve", "cross_family": false } ] }, { "qid": "KOL-2026-10-4362-Q005", "text": "Shaft generator ?", "family": "Electrical - Generator & Alternator", "subtopic": "Shaft Generator", "tid": "KOL-2026-10-4362", "tray": "review", "candidates": [ { "answer_id": "ALT-GEN-P04-001", "score": 0.7309197187423706, "sibling_score": 0.7309197187423706, "answer_score": 0.41780728995800015, "sibling_qid": "KOL-2021-10-2501-Q005", "sibling_text": "shaft generator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Shaft generator - working and arrangement", "cross_family": false }, { "answer_id": "SHAFT-GEN-001", "score": 0.7309197187423706, "sibling_score": 0.7309197187423706, "answer_score": 0.41269286572933195, "sibling_qid": "KOC-2026-02-1695-Q003", "sibling_text": "shaft generator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Shaft generator — working, arrangement, components and function", "cross_family": false }, { "answer_id": "SHAFT-GEN-003", "score": 0.6414934992790222, "sibling_score": 0.6414934992790222, "answer_score": null, "sibling_qid": "KOC-2026-02-1703-Q003", "sibling_text": "shaft generator limitations", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Limitations, drawbacks and disadvantages of a shaft generator", "cross_family": false } ] }, { "qid": "KOL-2026-10-4362-Q006", "text": "MSB maintenance in dry dock?", "family": "Drydock & Underwater Surveys", "subtopic": "MSB/ESB - Layout/Safeties", "tid": "KOL-2026-10-4362", "tray": "review", "candidates": [ { "answer_id": "ELEC-SURV-007", "score": 0.8214601278305054, "sibling_score": 0.8214601278305054, "answer_score": null, "sibling_qid": "MUM-2024-02-1423-Q005", "sibling_text": "maintenance on msb in drydock", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Main switchboard survey & ACB testing", "cross_family": false }, { "answer_id": "MSB-ESB-B-003", "score": 0.7656348943710327, "sibling_score": 0.7656348943710327, "answer_score": 0.5224849343299866, "sibling_qid": "KOC-2025-01-1472-Q013", "sibling_text": "msb maintenance in drydock", "sibling_family": "", "via": "sibling", "answer_title": "MSB/ESB work in drydock & the trips you test", "cross_family": false }, { "answer_id": "MSB-ESB-C-001", "score": 0.6477725505828857, "sibling_score": 0.6477725505828857, "answer_score": null, "sibling_qid": "KOC-2024-05-1359-Q008", "sibling_text": "msb maintenance when we do i told him during dry dock then he asked when we get long anchorage can we do is there any provision to isolate msb and do maintenance then he asked about some tie rod like that it was not clear i asked whether it s tie breaker he told no", "sibling_family": "", "via": "sibling", "answer_title": "MSB-ESB interconnection, tie breaker/interlock and emergency supply transfer", "cross_family": false } ] }, { "qid": "KOL-2026-10-4362-Q007", "text": "Exi and Exd ? Decider ques Srinivasan", "family": "Electrical - Distribution & Earthing", "subtopic": "", "tid": "KOL-2026-10-4362", "tray": "new", "candidates": [ { "answer_id": "EXD-EXI-A-002", "score": 0.49248436093330383, "sibling_score": 0.49248436093330383, "answer_score": null, "sibling_qid": "KOL-2019-02-2263-Q004", "sibling_text": "what is exd n exi", "sibling_family": "", "via": "sibling", "answer_title": "Ex d (flameproof / explosion-proof) — construction, shipboard applications and maintenance", "cross_family": false }, { "answer_id": "EXD-EXI-A-001", "score": 0.4893069267272949, "sibling_score": 0.4893069267272949, "answer_score": null, "sibling_qid": "KOC-2023-03-1241-Q002", "sibling_text": "exd and exi explain application of both", "sibling_family": "", "via": "sibling", "answer_title": "Ex i (intrinsically safe) vs Ex d (flameproof / explosion-proof) — the difference", "cross_family": false }, { "answer_id": "EEDI-C-003", "score": 0.2978487655520439, "sibling_score": null, "answer_score": 0.2978487655520439, "sibling_qid": "", "sibling_text": "how eedi sits against eexi cii and seemp", "sibling_family": "", "via": "answer_title", "answer_title": "How EEDI sits against EEXI, CII and SEEMP", "cross_family": false } ] }, { "qid": "KOL-2026-10-4363-Q001", "text": "VIT, SVIT ?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "VIT Mechanism", "tid": "KOL-2026-10-4363", "tray": "review", "candidates": [ { "answer_id": "VIT-MECH-A-001", "score": 0.6520170569419861, "sibling_score": 0.6520170569419861, "answer_score": 0.27505558729171753, "sibling_qid": "KOL-2024-02-1772-Q005", "sibling_text": "about vit", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "VIT — what it is, why it is fitted, and its trade-offs", "cross_family": false }, { "answer_id": "VIT-MECH-A-002", "score": 0.6513786911964417, "sibling_score": 0.6513786911964417, "answer_score": null, "sibling_qid": "KOL-2024-07-1949-Q002", "sibling_text": "vit function", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How VIT works — varying the start of injection on the fuel pump", "cross_family": false }, { "answer_id": "VIT-MECH-D-001", "score": 0.6403629183769226, "sibling_score": 0.6403629183769226, "answer_score": null, "sibling_qid": "MUM-2026-05-3151-Q003", "sibling_text": "vit super vit", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Super-VIT — construction and working (double-thread / upper-lower thread)", "cross_family": false } ] }, { "qid": "KOL-2026-10-4363-Q002", "text": "ALCAP purifier ?", "family": "Purifier & Centrifuges", "subtopic": "Purifier Operation / Bowl", "tid": "KOL-2026-10-4363", "tray": "review", "candidates": [ { "answer_id": "PUR-OPS-P01-001", "score": 0.7330044507980347, "sibling_score": 0.7330044507980347, "answer_score": 0.4847691714763641, "sibling_qid": "KOL-2018-03-1360-Q003", "sibling_text": "alcap purifier in detail", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "ALCAP / modern self-ejecting purifier — concept, working, and the difference from a conventional purifier", "cross_family": false }, { "answer_id": "PURIF-172-003", "score": 0.6906070113182068, "sibling_score": 0.6906070113182068, "answer_score": 0.4457503825426102, "sibling_qid": "MUM-2024-08-2238-Q009", "sibling_text": "alcap purifier advantages", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "ALCAP and the water transducer", "cross_family": false }, { "answer_id": "PARD-330-004", "score": 0.6624202132225037, "sibling_score": 0.6624202132225037, "answer_score": null, "sibling_qid": "KOL-2022-05-4008-Q004", "sibling_text": "purifier which type how different from alcap alcap full working what is the function of pairing disc in purifier", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "What is the purpose of the paring disc — why does the purifier need it at all?", "cross_family": false } ] }, { "qid": "KOL-2026-10-4363-Q003", "text": "Brass uses onboard ?", "family": "Electrical - Distribution & MSB", "subtopic": "Voltage System (440V / 690V / HV)", "tid": "KOL-2026-10-4363", "tray": "new", "candidates": [ { "answer_id": "SGB-212-005", "score": 0.5514919757843018, "sibling_score": 0.5514919757843018, "answer_score": 0.40895406901836395, "sibling_qid": "KOC-2024-09-1868-Q002", "sibling_text": "brass composition properties where is it used onboard", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Brass — composition and onboard use", "cross_family": true }, { "answer_id": "SGB-212-006", "score": 0.5425344705581665, "sibling_score": 0.5425344705581665, "answer_score": 0.35200667679309844, "sibling_qid": "KOL-2026-01-2037-Q001", "sibling_text": "bronze used onboard", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Bronze — composition and onboard use", "cross_family": true }, { "answer_id": "VFD-INV-P01-002", "score": 0.49431678652763367, "sibling_score": 0.49431678652763367, "answer_score": null, "sibling_qid": "KOC-2025-01-1481-Q011", "sibling_text": "where all its used on board", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Where is a VFD used onboard, and why?", "cross_family": true } ] }, { "qid": "KOL-2026-10-4363-Q004", "text": "How to know water ingress in crankcase ?", "family": "Pumps - Centrifugal & PD", "subtopic": "Bilge Line / Pump", "tid": "KOL-2026-10-4363", "tray": "new", "candidates": [ { "answer_id": "CAS-ESTOP-001", "score": 0.6058981418609619, "sibling_score": 0.6058981418609619, "answer_score": null, "sibling_qid": "KOL-2025-07-3823-Q005", "sibling_text": "how will you know water ingress in er", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Engine-room flooding / rapidly rising bilges — immediate action as 2/E", "cross_family": false }, { "answer_id": "LO-TEST-P02-002", "score": 0.5923997163772583, "sibling_score": 0.5923997163772583, "answer_score": null, "sibling_qid": "KOC-2024-04-2044-Q005", "sibling_text": "indication for lube oil water ingress", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "LO contamination by water, fuel, microbes or solids: sources, indications, actions", "cross_family": true }, { "answer_id": "STT-BRG-005", "score": 0.5828759670257568, "sibling_score": 0.5828759670257568, "answer_score": null, "sibling_qid": "KOL-2021-12-3502-Q001", "sibling_text": "stern tube aft seal how to know water ingress wants to hear lab test", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "4. Seal leakage — detection, water-ingress diagnosis and integrity test", "cross_family": true } ] }, { "qid": "KOL-2026-10-4363-Q005", "text": "3 important drawing for drydock ?", "family": "Drydock & Underwater Surveys", "subtopic": "Drydock / Hull Repair / Sea Chest", "tid": "KOL-2026-10-4363", "tray": "review", "candidates": [ { "answer_id": "DUS-P1-02", "score": 0.7292202115058899, "sibling_score": 0.7292202115058899, "answer_score": 0.5666176408529281, "sibling_qid": "KOL-2022-03-3520-Q001", "sibling_text": "dry dock drawings plan and tools used", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Plans, drawings and special tools kept ready for drydock — engine-department view", "cross_family": false }, { "answer_id": "DUS-P1-03", "score": 0.6939879059791565, "sibling_score": 0.6939879059791565, "answer_score": 0.482869678735733, "sibling_qid": "KOL-2023-05-3613-Q004", "sibling_text": "3 docking plan he want to know where ship will seat on block during docking exact answer he want how u will do painting in area under block not accepting alternate in dry dock shell expansion plan purpose explained everything but he want to listen 3d view into 2d on paper", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Docking plan — content, purpose and how the 2E uses it", "cross_family": false }, { "answer_id": "GA-GI-DWG-003", "score": 0.5274425029754638, "sibling_score": null, "answer_score": 0.5274425029754638, "sibling_qid": "", "sibling_text": "3 what is a sheer plan and why is it needed in drydock sheer plan the profile side elevation view of the lines plan shows stem stern profile deck sheer keel profile flat of keel and buttock lines as curves", "sibling_family": "", "via": "answer_title", "answer_title": "3. What is a sheer plan and why is it needed in drydock?", "cross_family": false } ] }, { "qid": "KOL-2026-10-4363-Q006", "text": "Propeller fitting ?", "family": "Drydock & Underwater Surveys", "subtopic": "Propeller / Pilgrim Nut", "tid": "KOL-2026-10-4363", "tray": "review", "candidates": [ { "answer_id": "PROP-PN-B-002", "score": 0.7811412215232849, "sibling_score": 0.7811412215232849, "answer_score": 0.5313312649726868, "sibling_qid": "KOC-2021-11-1769-Q003", "sibling_text": "propeller fitting", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Fitting a keyless propeller (oil-injection push-up method)", "cross_family": false }, { "answer_id": "PROP-RP-002", "score": 0.7801024913787842, "sibling_score": 0.7801024913787842, "answer_score": 0.541624304652214, "sibling_qid": "MUM-2025-05-2307-Q004", "sibling_text": "propeller fitting", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Propeller fitting — push-up, drop, bedding, dry vs wet", "cross_family": false }, { "answer_id": "PROP-PIL-A-001", "score": 0.7801024913787842, "sibling_score": 0.7801024913787842, "answer_score": null, "sibling_qid": "MUM-2025-05-2282-Q001S3", "sibling_text": "propeller fitting", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Pilgrim / SKF hydraulic nut — fitting, push-up, extraction and removal", "cross_family": false } ] }, { "qid": "KOL-2026-10-4363-Q007", "text": "AE starting checks after O/H in details ?(cross on each question) ", "family": "Refrigeration & AC", "subtopic": "1 Ton Refrigeration", "tid": "KOL-2026-10-4363", "tray": "new", "candidates": [ { "answer_id": "A6-NSEC-005", "score": 0.5254385471343994, "sibling_score": 0.5254385471343994, "answer_score": null, "sibling_qid": "MUM-2024-11-0222-Q002", "sibling_text": "seemp all parts cross questions", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP — Part I, II & III", "cross_family": true }, { "answer_id": "COT-P02-11", "score": 0.5141817331314087, "sibling_score": 0.5141817331314087, "answer_score": null, "sibling_qid": "MUM-2025-07-1140-Q009", "sibling_text": "q before starting ig what all checks you will carry out", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "As second engineer, state the checks and tests to carry out on the inert-gas system before starting it and before arrival for cargo discharge.", "cross_family": true }, { "answer_id": "WMAT-170-010", "score": 0.5138415098190308, "sibling_score": 0.5138415098190308, "answer_score": null, "sibling_qid": "KOL-2024-06-1946-Q007", "sibling_text": "some more cross question on each of the above answers", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bearing types, material selection and properties: where each is used", "cross_family": true } ] }, { "qid": "KOL-2026-10-4363-Q008", "text": "Scavenge fire action ? Decider ques Vikrant rai", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Scavenging / Scavenge Fire", "tid": "KOL-2026-10-4363", "tray": "review", "candidates": [ { "answer_id": "SCAV-323-P01-001", "score": 0.6517451405525208, "sibling_score": 0.6517451405525208, "answer_score": 0.35689065605401993, "sibling_qid": "KOC-2024-03-2043-Q007", "sibling_text": "scavenge fire actions", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Scavenge fire in the main engine — your actions", "cross_family": false }, { "answer_id": "SCAV-323-P01-005", "score": 0.6348996758460999, "sibling_score": 0.6348996758460999, "answer_score": null, "sibling_qid": "KOL-2025-11-3872-Q008", "sibling_text": "scavenge fire and its actions after fire actions", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Post-fire checks before restarting and loading", "cross_family": false }, { "answer_id": "SCAV-323-P01-004", "score": 0.6208359599113464, "sibling_score": 0.6208359599113464, "answer_score": null, "sibling_qid": "KOL-2016-12-3020-Q001", "sibling_text": "scavenge fire reasons n actions", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Causes of a scavenge fire in a two-stroke main engine", "cross_family": false } ] }, { "qid": "KOL-2026-10-4364-Q001", "text": "Fuel cam lead ,how to measure ?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Cam & Lead", "tid": "KOL-2026-10-4364", "tray": "review", "candidates": [ { "answer_id": "FCAM-LEAD-P04-001", "score": 0.7683090567588806, "sibling_score": 0.7683090567588806, "answer_score": 0.5461434781551361, "sibling_qid": "KOL-2025-05-3781-Q004", "sibling_text": "pump lead cam lead how to measure", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel cam lead, cam profile, negative cam and cam slip", "cross_family": false }, { "answer_id": "FCL-P01-001", "score": 0.735282838344574, "sibling_score": 0.735282838344574, "answer_score": 0.5658477008342743, "sibling_qid": "KOL-2026-05-4091-Q001", "sibling_text": "how to measure fuel pump lead and cam lead name the instrument", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel pump lead and fuel cam lead: meaning, measurement, significance and adjustment", "cross_family": false }, { "answer_id": "FCL-P03-003", "score": 0.6550097465515137, "sibling_score": 0.6550097465515137, "answer_score": null, "sibling_qid": "KOL-2023-10-3646-Q003", "sibling_text": "sulzur fuel pump lead how to measure where dial gauge how to get reading exact value of lead", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Sulzer / RTA fuel pump timing and lead", "cross_family": false } ] }, { "qid": "KOL-2026-10-4364-Q002", "text": "Stern tube grooving, what to do while sailing ?", "family": "Drydock & Underwater Surveys", "subtopic": "Stern Tube / Tail Shaft", "tid": "KOL-2026-10-4364", "tray": "new", "candidates": [ { "answer_id": "STERN-TUBE-P04-001", "score": 0.5945285558700562, "sibling_score": 0.5945285558700562, "answer_score": 0.4462098032236099, "sibling_qid": "KOL-2019-07-3255-Q004", "sibling_text": "stern tube is leaking during sailing how will you find out what to do", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Stern tube or seal leakage at sea: diagnosis and 2/E actions", "cross_family": false }, { "answer_id": "STERN-P03-002", "score": 0.5650015473365784, "sibling_score": 0.5650015473365784, "answer_score": null, "sibling_qid": "MUM-2025-12-2518-Q005", "sibling_text": "stern tube in board seals how to fit onboard", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Stern-tube seals: arrangement, air/lip seals, renewal/replacement and the vulcanized split-seal fitting method", "cross_family": false }, { "answer_id": "STS-P02-003", "score": 0.5559492707252502, "sibling_score": 0.5559492707252502, "answer_score": null, "sibling_qid": "CHE-2026-04-0165-Q005", "sibling_text": "how stern tube fitted in vessel", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "STS-P02-03 - Stern tube arrangement, fitting in hull and shaft support", "cross_family": false } ] }, { "qid": "KOL-2026-10-4364-Q003", "text": "Aux engine crankpin ovality, where to check and what positions?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankpin Checks", "tid": "KOL-2026-10-4364", "tray": "review", "candidates": [ { "answer_id": "CRPIN-CHK-P01-001", "score": 0.8305006623268127, "sibling_score": 0.8305006623268127, "answer_score": 0.6155436635017395, "sibling_qid": "CHE-2026-05-0563-Q011", "sibling_text": "crankpin ovality checking positions", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankpin ovality — how it is measured and at what positions", "cross_family": false }, { "answer_id": "CRPIN-CHK-P01-002", "score": 0.7713595032691956, "sibling_score": 0.7713595032691956, "answer_score": null, "sibling_qid": "CHE-2026-05-0638-Q013", "sibling_text": "ae crankpin ovality checking procedure", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankpin ovality — causes, effects, limit and immediate action", "cross_family": false }, { "answer_id": "CRKPIN-P02-001", "score": 0.76095050573349, "sibling_score": 0.76095050573349, "answer_score": null, "sibling_qid": "KOL-2025-10-2021-Q013", "sibling_text": "crankpin bearing inspection crankpin of one unit is oval when you when you are using new bearing shell", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankpin (bottom-end) bearing — removal, overhaul and survey inspection", "cross_family": false } ] }, { "qid": "KOL-2026-10-4364-Q004", "text": "Propeller inspection in drydock ?", "family": "Drydock & Underwater Surveys", "subtopic": "Propeller / Pilgrim Nut", "tid": "KOL-2026-10-4364", "tray": "review", "candidates": [ { "answer_id": "DDI-001", "score": 0.8418044447898865, "sibling_score": 0.8418044447898865, "answer_score": null, "sibling_qid": "CHE-2026-09-3914-Q009", "sibling_text": "checks carried out on propeller in drydock", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "You have just docked and the water is pumped out — what do you check on the hull, propeller, rudder, sea chest and underwater valves? Where do you gauge hull thickness, and how do you find a damaged rudder?", "cross_family": false }, { "answer_id": "PROP-PN-C-003", "score": 0.8062283396720886, "sibling_score": 0.8062283396720886, "answer_score": 0.6385952532291412, "sibling_qid": "MUM-2026-05-3258-Q003", "sibling_text": "propeller check in drydock as 2e", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Drydock propeller inspection — checks and repairs", "cross_family": false }, { "answer_id": "PROP-RP-005", "score": 0.7986603379249573, "sibling_score": 0.7986603379249573, "answer_score": 0.6350433051586151, "sibling_qid": "KOL-2021-10-3466-Q001", "sibling_text": "what propeller inspections will carry out in dry dock he want you to first clean and then inspection", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Drydock propeller inspection — clean, then inspect", "cross_family": false } ] }, { "qid": "KOL-2026-10-4364-Q005", "text": "one of the propeller blade part is broken in 4 blade propeller, what repair to do ?", "family": "Drydock & Underwater Surveys", "subtopic": "Propeller Removal / Polish", "tid": "KOL-2026-10-4364", "tray": "review", "candidates": [ { "answer_id": "PROP-RP-004", "score": 0.7477030158042908, "sibling_score": 0.7477030158042908, "answer_score": 0.5280045688152313, "sibling_qid": "KOL-2018-05-1375-Q008", "sibling_text": "propeller blade damaged at tip how to repair", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Blade damage, repair zones, polishing and balancing", "cross_family": false }, { "answer_id": "PROP-PN-C-003", "score": 0.7195729613304138, "sibling_score": 0.7195729613304138, "answer_score": null, "sibling_qid": "MUM-2023-09-2194-Q006", "sibling_text": "propellor blade crack insitu or remove", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Drydock propeller inspection — checks and repairs", "cross_family": false }, { "answer_id": "IWS-004", "score": 0.7072888016700745, "sibling_score": 0.7072888016700745, "answer_score": null, "sibling_qid": "MUM-2026-07-3816-Q004", "sibling_text": "one propeller blade type is found damaged in iws action told head to dd for repair", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Action when damage or a defect is found during an in-water survey", "cross_family": false } ] }, { "qid": "KOL-2026-10-4364-Q006", "text": "MCC exhaust valve is opening fully how to know (not the indicator moving up and down ) and rotation how to check during normal watchkeeping ?", "family": "2-Stroke - Exhaust, Valve & Starting Air", "subtopic": "Exhaust Valve", "tid": "KOL-2026-10-4364", "tray": "review", "candidates": [ { "answer_id": "EXV-P02-001", "score": 0.7446766495704651, "sibling_score": 0.7446766495704651, "answer_score": null, "sibling_qid": "MUM-2026-09-3933-Q004", "sibling_text": "how will you check whether the exhaust valve is opening and closing", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve overhaul & dismantling — procedure and precautions", "cross_family": false }, { "answer_id": "EXHV-080-BF37-002", "score": 0.7240207195281982, "sibling_score": 0.7240207195281982, "answer_score": null, "sibling_qid": "MUM-2026-04-1007-Q006", "sibling_text": "exhaust valve working complete", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Explain the working and construction of the exhaust valve, its mountings and internal parts.", "cross_family": false }, { "answer_id": "EXHV-080-BF37-007", "score": 0.7131760716438293, "sibling_score": 0.7131760716438293, "answer_score": 0.6054584980010986, "sibling_qid": "KOC-2021-05-1756-Q007", "sibling_text": "how do you know your exh valve is rotating", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "How do you know the exhaust valve is rotating?", "cross_family": false } ] }, { "qid": "KOL-2026-10-4365-Q001", "text": "What do you understand by plunger lift in jerk type fuel pump ?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Pump Overhaul", "tid": "KOL-2026-10-4365", "tray": "new", "candidates": [ { "answer_id": "FPP-049-001", "score": 0.6068937182426453, "sibling_score": 0.6068937182426453, "answer_score": null, "sibling_qid": "KOL-2022-08-3560-Q007", "sibling_text": "what pressure is developed in jerk type fuel pump", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "What pressure is developed at the fuel pump, and at injection?", "cross_family": false }, { "answer_id": "VIT-MECH-C-001", "score": 0.5781152844429016, "sibling_score": 0.5781152844429016, "answer_score": null, "sibling_qid": "KOL-2019-10-1490-Q003", "sibling_text": "hw fuel qty and timing is controlled hw the plunger is rotated", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "MAN B&W MC VIT — varying the start of injection on a helix pump", "cross_family": false }, { "answer_id": "FCL-P02-001", "score": 0.5755132436752319, "sibling_score": 0.5755132436752319, "answer_score": null, "sibling_qid": "KOL-2018-08-3184-Q003", "sibling_text": "timing check of jerk type fuel pump", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel pump / injection timing check, setting, and adjustment", "cross_family": false } ] }, { "qid": "KOL-2026-10-4365-Q002", "text": "How water is removed from compressed air, explain complete process from starting to end ?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE Decarb", "tid": "KOL-2026-10-4365", "tray": "new", "candidates": [ { "answer_id": "ICAC-299-004", "score": 0.5916582942008972, "sibling_score": 0.5916582942008972, "answer_score": 0.529781150817871, "sibling_qid": "KOL-2018-09-3189-Q003", "sibling_text": "air line intercooler and aftercooler purpose and arrangements to remove moisture from compressed air system", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Moisture removal: cooler, separator and drains", "cross_family": true }, { "answer_id": "AIR-REF-001", "score": 0.5579420328140259, "sibling_score": 0.5579420328140259, "answer_score": null, "sibling_qid": "MUM-2026-06-3559-Q004", "sibling_text": "air in refrigeration system indication removal process", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "1. Indications that air is present in a refrigeration system", "cross_family": true }, { "answer_id": "AIR-REF-004", "score": 0.5540257692337036, "sibling_score": 0.5540257692337036, "answer_score": null, "sibling_qid": "MUM-2025-07-2816-Q006", "sibling_text": "how you will remove air from refrigeration plant", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "4. Detecting and purging air from a refrigeration system", "cross_family": true } ] }, { "qid": "KOL-2026-10-4365-Q003", "text": "What is meant by endurance limit?", "family": "NDT & Material Testing", "subtopic": "Creep / Fatigue Failure", "tid": "KOL-2026-10-4365", "tray": "review", "candidates": [ { "answer_id": "CFF-P02-002", "score": 0.686174213886261, "sibling_score": 0.686174213886261, "answer_score": 0.424836228787899, "sibling_qid": "KOL-2020-11-1559-Q007", "sibling_text": "endurance limit", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "The S-N curve and the endurance (fatigue) limit", "cross_family": false }, { "answer_id": "CFF-P02-003", "score": 0.399254709482193, "sibling_score": null, "answer_score": 0.399254709482193, "sibling_qid": "", "sibling_text": "low cycle and high cycle fatigue high cycle fatigue hcf low stress elastic n large broadly 10 4 up to 10 6 10 8 stress controlled the s n endurance limit regime basquin low cycle fatigue lcf high stress into plastic strain each cycle n small broadly 10 4 strain controlled coffin manson no endurance limit benefit", "sibling_family": "", "via": "answer_title", "answer_title": "Low-cycle and high-cycle fatigue", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-002", "score": 0.3824659943580627, "sibling_score": null, "answer_score": 0.3824659943580627, "sibling_qid": "", "sibling_text": "acceptance limits and durations the accumulation limit the maximum test periods and the action if the limit is exceeded the limit is a class figure the lr edition held gives 10 of design pressure mca msis 003 gives 10 of working pressure which it defines as the maximum design pressure the same quantity lr s current edition is 1 july 2026 and is not in hand read the ship s class rule durations are ", "sibling_family": "", "via": "answer_title", "answer_title": "Acceptance limits and durations — the accumulation limit, the maximum test periods, and the action if the limit is exceeded", "cross_family": false } ] }, { "qid": "KOL-2026-10-4365-Q004", "text": "What are the special tools used in dry dock?", "family": "Drydock & Underwater Surveys", "subtopic": "DD Preparation / Plans", "tid": "KOL-2026-10-4365", "tray": "review", "candidates": [ { "answer_id": "DUS-P1-02", "score": 0.8063064217567444, "sibling_score": 0.8063064217567444, "answer_score": 0.49403839409351347, "sibling_qid": "KOL-2017-01-3024-Q004", "sibling_text": "drydock special tool", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Plans, drawings and special tools kept ready for drydock — engine-department view", "cross_family": false }, { "answer_id": "PROP-RP-001", "score": 0.7549242377281189, "sibling_score": 0.7549242377281189, "answer_score": null, "sibling_qid": "KOL-2017-11-0125-Q002", "sibling_text": "special tools carried for dry docking propeller removal", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Propeller removal — procedure, tools and sequence", "cross_family": false }, { "answer_id": "SPR-STERN-002", "score": 0.47497127056121824, "sibling_score": null, "answer_score": 0.47497127056121824, "sibling_qid": "", "sibling_text": "propeller draw dry dock blade repair", "sibling_family": "", "via": "answer_title", "answer_title": "Propeller draw & dry-dock blade repair", "cross_family": false } ] }, { "qid": "KOL-2026-10-4365-Q005", "text": "Types of heat exchanger according to the flow, how you will find and fix one leaking tube?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "LO Cooler", "tid": "KOL-2026-10-4365", "tray": "review", "candidates": [ { "answer_id": "STHX-002", "score": 0.7437719702720642, "sibling_score": 0.7437719702720642, "answer_score": null, "sibling_qid": "MUM-2026-05-3302-Q007", "sibling_text": "shell and tube type heat exchanger how to identify which tube is leaking", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "STHX-02 — Leak detection, indications and isolation", "cross_family": true }, { "answer_id": "STHX-005", "score": 0.7336112260818481, "sibling_score": 0.7336112260818481, "answer_score": null, "sibling_qid": "KOL-2022-09-3563-Q004", "sibling_text": "shell and tube type heat exchanger tube leak detection in place how to operate the heat exchanger when tube is leaking when do you renew the tube", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "STHX-05 — Damaged-tube removal, tube renewal, retubing tools and procedure", "cross_family": true }, { "answer_id": "PTHE-004", "score": 0.6860477924346924, "sibling_score": 0.6860477924346924, "answer_score": null, "sibling_qid": "KOL-2020-02-3328-Q007", "sibling_text": "how to find in plate type heat exchanger which plate is leaking", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Leak detection: external vs internal, and finding the plate", "cross_family": true } ] }, { "qid": "KOL-2026-10-4365-Q006", "text": "How you will fix leaking sea water pipeline?", "family": "Workshop & Welding", "subtopic": "Pipe Fabrication", "tid": "KOL-2026-10-4365", "tray": "review", "candidates": [ { "answer_id": "PIPEFAB-001", "score": 0.7038468718528748, "sibling_score": 0.7038468718528748, "answer_score": null, "sibling_qid": "MUM-2026-01-2544-Q001", "sibling_text": "a sea water pipe has leak and read to be fabricated with same old flanges how will you guide fitter to carry out the job", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "A damaged pipe has been removed — fabricate the new one: profiling an uneven/bent section and the instructions you give the 3/E or fitter", "cross_family": false }, { "answer_id": "PIPEFAB-009", "score": 0.6978880167007446, "sibling_score": 0.6978880167007446, "answer_score": 0.5117763996124267, "sibling_qid": "KOL-2020-12-3367-Q004", "sibling_text": "a e sea water pipe leaking action", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "A seawater or fire line is leaking / thinned down — action as 2/E, valve not holding, no hot work possible", "cross_family": false }, { "answer_id": "PIPEFAB-010", "score": 0.6649269461631775, "sibling_score": 0.6649269461631775, "answer_score": null, "sibling_qid": "MUM-2026-05-3176-Q001", "sibling_text": "how to repair copper pipe of sea water pump discharge gauge", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "How do you repair the copper pipe of the seawater pump discharge gauge?", "cross_family": false } ] }, { "qid": "KOL-2026-10-4365-Q007", "text": "Purpose of anti polishing ring?", "family": "2-Stroke - Components (Other)", "subtopic": "Piston Rings", "tid": "KOL-2026-10-4365", "tray": "review", "candidates": [ { "answer_id": "CYL-LINER-P04-005", "score": 0.7434611320495605, "sibling_score": 0.7434611320495605, "answer_score": 0.4876708477735519, "sibling_qid": "MUM-2026-07-3806-Q002", "sibling_text": "anti polishing ring", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Anti-polishing / flame / fire ring — location, purpose, material", "cross_family": false }, { "answer_id": "CYL-LINER-P02-008", "score": 0.7115294337272644, "sibling_score": 0.7115294337272644, "answer_score": 0.47825247049331665, "sibling_qid": "KOL-2018-01-1347-Q004", "sibling_text": "what is anti polishing ring it s purposes fitting where fitted material", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L8 · T044-PART_02-G008High", "cross_family": false }, { "answer_id": "CYL-LINER-P02-009", "score": 0.38008990585803987, "sibling_score": null, "answer_score": 0.38008990585803987, "sibling_qid": "", "sibling_text": "l9 t044 part 02 g009high definition an unworn raised step or ledge in the bore at the top and sometimes bottom limit of ring travel cause the ring does not sweep the extreme top so metal above the top ring reversal point stays unworn while the swept band below wears leaving a ridge worse with heavy wear lower down", "sibling_family": "", "via": "answer_title", "answer_title": "L9 · T044-PART_02-G009High", "cross_family": false } ] }, { "qid": "KOL-2026-10-4365-Q008", "text": "What are the checks done in ME turbocharger after overhauling?", "family": "Turbocharger", "subtopic": "Turbocharger Construction & Surging", "tid": "KOL-2026-10-4365", "tray": "review", "candidates": [ { "answer_id": "TC-OVHL-001", "score": 0.7666399478912354, "sibling_score": 0.7666399478912354, "answer_score": 0.5887821555137634, "sibling_qid": "MUM-2023-01-1040-Q016", "sibling_text": "turbocharger overhaul in place checks on turbine shaft", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Main-engine turbocharger overhaul — procedure and post-overhaul checks", "cross_family": false }, { "answer_id": "TURBO-CS-P02-004", "score": 0.7558254599571228, "sibling_score": 0.7558254599571228, "answer_score": null, "sibling_qid": "KOL-2017-06-3063-Q002", "sibling_text": "before overhauling turbocharger what all clearance you will check after overhauling what all things you will check material of turbine blade", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharger clearances — what, how, and the k/l/m values", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-012", "score": 0.7432443499565125, "sibling_score": 0.7432443499565125, "answer_score": null, "sibling_qid": "KOL-2026-03-3927-Q002", "sibling_text": "what checks are done to ensure that sealing air is getting admitted into the turbocharger and is working properly", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "12. Confirming turbocharger sealing air is admitted and working", "cross_family": false } ] }, { "qid": "KOL-2026-10-4366-Q001", "text": "Soft starter Working ?How will you control speed?", "family": "Electrical - Motors & Starters", "subtopic": "Soft Starter", "tid": "KOL-2026-10-4366", "tray": "review", "candidates": [ { "answer_id": "SOFTSTART-P02-001", "score": 0.6702367067337036, "sibling_score": 0.6702367067337036, "answer_score": 0.4848589479923248, "sibling_qid": "MUM-2022-11-1371-Q002", "sibling_text": "soft starter working", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "How a soft starter works — SCR / TRIAC phase control", "cross_family": false }, { "answer_id": "SOFT-START-P01-001", "score": 0.6701732277870178, "sibling_score": 0.6701732277870178, "answer_score": 0.5020370662212371, "sibling_qid": "KOC-2025-08-1562-Q006", "sibling_text": "soft starter working", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Soft Starter — Definition, Purpose and Working", "cross_family": false }, { "answer_id": "SOFTSTART-P02-005", "score": 0.6611534357070923, "sibling_score": 0.6611534357070923, "answer_score": null, "sibling_qid": "KOC-2022-03-1175-Q004", "sibling_text": "5 soft starter used for reduced current starting accrdng to tk", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Soft starter — applications onboard", "cross_family": false } ] }, { "qid": "KOL-2026-10-4366-Q002", "text": "RCCB? How Ckt connection? how breaker trip?", "family": "Electrical - Protection & Relays", "subtopic": "Overcurrent / UV Trip", "tid": "KOL-2026-10-4366", "tray": "new", "candidates": [ { "answer_id": "CBKR-D-ISORACK-001", "score": 0.605232298374176, "sibling_score": 0.605232298374176, "answer_score": 0.4518174916505813, "sibling_qid": "MUM-2026-02-1921-Q002", "sibling_text": "racking out of ckt breaker and safeties", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "How do you safely isolate, rack out, withdraw and prove dead an ACB/VCB before work?", "cross_family": false }, { "answer_id": "CB-ACBVCBSF6-E-001", "score": 0.5892088413238525, "sibling_score": 0.5892088413238525, "answer_score": 0.4222454011440277, "sibling_qid": "MUM-2026-09-3894-Q002", "sibling_text": "types of cb circuit breaker", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "What are the common types of circuit breakers used onboard and where are ACB, MCB, MCCB, VCB and SF6 breakers applied?", "cross_family": false }, { "answer_id": "OCR-185-001", "score": 0.5704382658004761, "sibling_score": 0.5704382658004761, "answer_score": null, "sibling_qid": "MUM-2026-04-2088-Q002", "sibling_text": "overcurrent relay trip", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Testing an overcurrent relay / overcurrent trip onboard", "cross_family": false } ] }, { "qid": "KOL-2026-10-4366-Q003", "text": "GMDSS battery load test? not conventional process?", "family": "Electrical - Batteries & DC Systems", "subtopic": "GMDSS Battery", "tid": "KOL-2026-10-4366", "tray": "review", "candidates": [ { "answer_id": "BDC-P04-05", "score": 0.7780715823173523, "sibling_score": 0.7780715823173523, "answer_score": 0.47530666589736936, "sibling_qid": "MUM-2026-04-2109-Q003", "sibling_text": "load test of gmdss battery", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "GMDSS battery — testing it, and ordering the replacement", "cross_family": false }, { "answer_id": "BDC-P04-03", "score": 0.7196930050849915, "sibling_score": 0.7196930050849915, "answer_score": 0.5515167951583863, "sibling_qid": "KOC-2025-06-1539-Q005", "sibling_text": "internal battery load test procedure", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "Battery load test on board — preparation, deciding the load, and reading the result", "cross_family": false }, { "answer_id": "EMG-DG-P04-001", "score": 0.4720516592264175, "sibling_score": null, "answer_score": 0.4720516592264175, "sibling_qid": "", "sibling_text": "emergency generator on load load test procedure inform the duty officer first confirm the set is inauto standby fuel in the day tank with valve open start batteries charged or air pressure up jacket coolant heater on thetest switch simulates a main supply failureto the auto start sensing relay the ship isnotactually blacked out", "sibling_family": "", "via": "answer_title", "answer_title": "Emergency generator on-load / load-test procedure", "cross_family": false } ] }, { "qid": "KOL-2026-10-4366-Q004", "text": "Isolated Neutral system? how current returns?", "family": "Electrical - Distribution & MSB", "subtopic": "High Voltage System / Earthing / Shore Supply", "tid": "KOL-2026-10-4366", "tray": "new", "candidates": [ { "answer_id": "EARTH-NEU-02A-001", "score": 0.6222944855690002, "sibling_score": 0.6222944855690002, "answer_score": null, "sibling_qid": "MUM-2026-05-3254-Q004", "sibling_text": "isolated and neutral earth system", "sibling_family": "Electrical - Distribution & MSB", "via": "sibling", "answer_title": "Earthed (neutral-earth) system — what it is, why we use it, pros and cons", "cross_family": false }, { "answer_id": "EARTH-NEU-02A-002", "score": 0.605257511138916, "sibling_score": 0.605257511138916, "answer_score": 0.47507725954055785, "sibling_qid": "MUM-2026-04-2109-Q002", "sibling_text": "earthed neutral and isolated neutral", "sibling_family": "Electrical - Distribution & MSB", "via": "sibling", "answer_title": "Insulated neutral vs earthed neutral — how each behaves, where each is used, which is safer", "cross_family": false }, { "answer_id": "EF-SHAFT-ERES-P05-001", "score": 0.5984832048416138, "sibling_score": 0.5984832048416138, "answer_score": null, "sibling_qid": "MUM-2026-06-3633-Q002", "sibling_text": "what is isolated neutral system what are its advantages", "sibling_family": "Electrical - Distribution & MSB", "via": "sibling", "answer_title": "Earth fault detection, indication and location", "cross_family": false } ] }, { "qid": "KOL-2026-10-4366-Q005", "text": "Can Different kvr rating generator connected? if yes how will you connect emergency generator with main generator?", "family": "Electrical - Generator & Alternator", "subtopic": "Emergency DG", "tid": "KOL-2026-10-4366", "tray": "review", "candidates": [ { "answer_id": "LS-IMB-A-003", "score": 0.7626075148582458, "sibling_score": 0.7626075148582458, "answer_score": 0.6150473594665528, "sibling_qid": "KOL-2024-07-2722-Q003", "sibling_text": "can you parallel two gen of different kva rating can you parallel emergency generator if tie breaker removed why change droop setting what is type generator on main engine and generator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "3. Paralleling generators of different ratings, and the emergency-generator question", "cross_family": false }, { "answer_id": "EMG-DG-P04-005", "score": 0.7394780516624451, "sibling_score": 0.7394780516624451, "answer_score": 0.5308702230453491, "sibling_qid": "KOL-2023-07-2664-Q005", "sibling_text": "can emergency generator be paralleled with main generator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Interlocks, paralleling restriction, tie breakers & main-bus connection", "cross_family": false }, { "answer_id": "LS-IMB-A-001", "score": 0.6893560290336609, "sibling_score": 0.6893560290336609, "answer_score": null, "sibling_qid": "KOL-2025-09-2856-Q003", "sibling_text": "two generator have different kilowatt can you do parallel operation", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Two paralleled generators sharing unequal load — cause and correction", "cross_family": false } ] }, { "qid": "KOL-2026-10-4367-Q001", "text": "interim doc and interim smc ?", "family": "ISM Code", "subtopic": "SMC / DOC", "tid": "KOL-2026-10-4367", "tray": "review", "candidates": [ { "answer_id": "ISM-SMCDOC-A-002", "score": 0.7512838244438171, "sibling_score": 0.7512838244438171, "answer_score": 0.35608152747154237, "sibling_qid": "KOC-2024-12-0494-Q001", "sibling_text": "interim doc and interim smc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Interim DOC — when, why, how, and how long", "cross_family": false }, { "answer_id": "ISM-SMC-B-002", "score": 0.6456882357597351, "sibling_score": 0.6456882357597351, "answer_score": 0.31419546306133267, "sibling_qid": "KOL-2018-01-0145-Q004", "sibling_text": "interim smc why", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Interim SMC — occasions, procedure and validity", "cross_family": false }, { "answer_id": "ISM-SMC-B-003", "score": 0.29966268688440323, "sibling_score": null, "answer_score": 0.29966268688440323, "sibling_qid": "", "sibling_text": "smc audit cycle initial intermediate renewal additional initial audit first full assessment full smc issued 5 years intermediate verification at least one if only one is carried out on a 5 year smc it is between the 2nd and 3rd anniversary verifies effective sms functioning and that changes still comply", "sibling_family": "", "via": "answer_title", "answer_title": "SMC audit cycle — initial, intermediate, renewal, additional", "cross_family": false } ] }, { "qid": "KOL-2026-10-4367-Q002", "text": "condition of assignment ?", "family": "Surveys - Statutory", "subtopic": "Condition of Class", "tid": "KOL-2026-10-4367", "tray": "review", "candidates": [ { "answer_id": "LLC-SUR-POA-3-FINAL-001", "score": 0.8769838213920593, "sibling_score": 0.8769838213920593, "answer_score": 0.2942327782511711, "sibling_qid": "CHE-2026-05-0600-Q008", "sibling_text": "condition of assignment", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Conditions of assignment of freeboard", "cross_family": false }, { "answer_id": "COC-002", "score": 0.41137418448925017, "sibling_score": null, "answer_score": 0.41137418448925017, "sibling_qid": "", "sibling_text": "what is the difference between a condition of class and a condition of assignment condition of class class regime iacs a specific repair survey measure within a time limit to retain class defect driven on the survey status overdue society s suspension procedure condition of assignment statutory international convention on load lines 1966 chapter ii the conditions of assignment of freeboard traditi", "sibling_family": "", "via": "answer_title", "answer_title": "What is the difference between a Condition of Class and a Condition of Assignment?", "cross_family": false }, { "answer_id": "LO-TEST-P02-004", "score": 0.3175545334815979, "sibling_score": null, "answer_score": 0.3175545334815979, "sibling_qid": "", "sibling_text": "judging lo fit for use changing ordering and substituting between machinery fit for use is condition based by analysis against the maker s condemning limits not just running hours lab parameters viscosity grade drift bn alkaline reserve water insolubles oxidation flash point fuel dilution wear metals icp tan where relevant", "sibling_family": "", "via": "answer_title", "answer_title": "Judging LO fit-for-use; changing, ordering and substituting between machinery", "cross_family": false } ] }, { "qid": "KOL-2026-10-4367-Q003", "text": "MARPOL annex1 discharge criteria ?", "family": "MARPOL - Annex I (Oil)", "subtopic": "OWS / 15ppm / ODMCS", "tid": "KOL-2026-10-4367", "tray": "review", "candidates": [ { "answer_id": "ODC-001", "score": 0.8069797158241272, "sibling_score": 0.8069797158241272, "answer_score": 0.5492593616247177, "sibling_qid": "KOL-2021-07-0513-Q003", "sibling_text": "marpol annex 1 discharge criteria", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "MARPOL Annex I oil discharge criteria — the overall framework", "cross_family": false }, { "answer_id": "ODC-003", "score": 0.792612612247467, "sibling_score": 0.792612612247467, "answer_score": null, "sibling_qid": "KOL-2023-12-0790-Q004", "sibling_text": "discharge criteria in special and outside special area according to marpol annex 1", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Machinery-space bilge discharge inside a special area — and the difference from outside", "cross_family": false }, { "answer_id": "CHEM-PA-001", "score": 0.7425481677055359, "sibling_score": 0.7425481677055359, "answer_score": null, "sibling_qid": "KOL-2022-08-0673-Q002", "sibling_text": "dicharge criteria according to marpol annex2", "sibling_family": "MARPOL - Annex II (NLS)", "via": "sibling", "answer_title": "Scope and applicability of MARPOL Annex II", "cross_family": true } ] }, { "qid": "KOL-2026-10-4367-Q004", "text": "sox documents ?", "family": "Surveys - Statutory", "subtopic": "Certificates List", "tid": "KOL-2026-10-4367", "tray": "new", "candidates": [ { "answer_id": "SOX-LIMIT-003", "score": 0.5169035196304321, "sibling_score": 0.5169035196304321, "answer_score": null, "sibling_qid": "CHE-2026-08-3885-Q003", "sibling_text": "sox reduction", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Controlling SOx onboard — compliant fuel, scrubbers, alternatives", "cross_family": true }, { "answer_id": "AV6-P01-04", "score": 0.5159931182861328, "sibling_score": 0.5159931182861328, "answer_score": 0.2614052250981331, "sibling_qid": "CHE-2026-05-0609-Q001", "sibling_text": "sox nox", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Compare how SOx and NOx are formed on a marine engine and the principal routes to reduce each.", "cross_family": true }, { "answer_id": "SOX-LIMIT-001", "score": 0.5098679065704346, "sibling_score": 0.5098679065704346, "answer_score": null, "sibling_qid": "KOL-2026-02-1188-Q005", "sibling_text": "sox limitation", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "MARPOL Annex VI sulphur limits — the 2020 global cap", "cross_family": true } ] }, { "qid": "KOL-2026-10-4367-Q005", "text": "SMS function ? Decider ques Srinivasan", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "MRV / DCS", "tid": "KOL-2026-10-4367", "tray": "new", "candidates": [ { "answer_id": "SMSFR-002", "score": 0.4909502863883972, "sibling_score": 0.4909502863883972, "answer_score": null, "sibling_qid": "KOL-2019-12-0365-Q002", "sibling_text": "what is sms manal under ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the Safety Management System — the SMS manual, its contents, objectives, why it is needed onboard, and the company SMS policy?", "cross_family": true }, { "answer_id": "ISM-SMCDOC-A-001", "score": 0.4717845320701599, "sibling_score": 0.4717845320701599, "answer_score": null, "sibling_qid": "KOL-2018-06-2202-Q016", "sibling_text": "doc sms ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM certificates: the DOC and SMC family", "cross_family": true }, { "answer_id": "ISM-AUD-P02-003", "score": 0.46751680970191956, "sibling_score": 0.46751680970191956, "answer_score": null, "sibling_qid": "MUM-2026-04-0928-Q006", "sibling_text": "ism elements and functional requirements of sms", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "The six functional requirements of the ISM Code (clause 1.4)", "cross_family": true } ] }, { "qid": "KOL-2026-10-4368-Q001", "text": "ESP , Applicable to which ship and what s check?", "family": "MARPOL - General & Compliance", "subtopic": "Annex Overview", "tid": "KOL-2026-10-4368", "tray": "review", "candidates": [ { "answer_id": "ESP-A-002", "score": 0.6704208850860596, "sibling_score": 0.6704208850860596, "answer_score": 0.5201202452182769, "sibling_qid": "KOL-2026-03-1208-Q004", "sibling_text": "what is esp when conducted and on which type of ships", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "On which ships is ESP applicable, under which statutory framework, and when is it carried out?", "cross_family": true }, { "answer_id": "ESP-B-001", "score": 0.6465576887130737, "sibling_score": 0.6465576887130737, "answer_score": 0.4902929604053497, "sibling_qid": "MUM-2025-07-0355-Q006", "sibling_text": "what is esp and application of which ships and frequency and what are the things they will check in engine room", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "How an ESP survey is carried out — conduct, engine-room preparation & 2/E duties", "cross_family": true }, { "answer_id": "AV6-P05-01", "score": 0.6091290712356567, "sibling_score": 0.6091290712356567, "answer_score": null, "sibling_qid": "MUM-2022-08-0034-Q011", "sibling_text": "which ships it is applicable", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP Part II — IMO DCS plan and contents", "cross_family": true } ] }, { "qid": "KOL-2026-10-4368-Q002", "text": "SOLAS regulation regarding fixed fire fighting? as per SOLAS how many fix firefighting system is there not on your ship as per SOLAS how many? ANS: three types first one CO2 fix fire fighting system second one hyper mist system third one fixed foam system. Can we use any one of three - what are the requirements for using more than one fixed fire fighting system- Ans - passenger ship 500gt cargo ship 2000gt and machinery space of category a 500 m3 and above Can we use any two. No the hyper mist system should be used in addition to the above two system that means at least CO2 or foam should be there then we can use additionally hyper mist --- as per surveyor", "family": "SOLAS - Fire Safety", "subtopic": "CO2 System", "tid": "KOL-2026-10-4368", "tray": "review", "candidates": [ { "answer_id": "FOAM-032-P03-002", "score": 0.8260859251022339, "sibling_score": 0.8260859251022339, "answer_score": null, "sibling_qid": "KOC-2023-10-0224-Q003", "sibling_text": "3 fixed fire fighting system in ur ship annual maintenance of high expansion foam", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "High-expansion foam generator / nozzle arrangement — draw and explain", "cross_family": false }, { "answer_id": "FOAM-SYS-P06-002", "score": 0.8172131180763245, "sibling_score": 0.8172131180763245, "answer_score": null, "sibling_qid": "KOL-2024-10-0869-Q001", "sibling_text": "fixed fire fighting system on your ship x1 additional fire fighting for e r x2 annual checks for h e foam system x3 line diagram and explain working of foam system no decider for fn 5", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "2. Maintenance routines — fixed foam system & concentrate", "cross_family": false }, { "answer_id": "CO2-SYS-008", "score": 0.8145297765731812, "sibling_score": 0.8145297765731812, "answer_score": null, "sibling_qid": "MUM-2026-06-3646-Q003", "sibling_text": "fixed fire fighting system on your ship and co2 system regulation", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 release-rate rules, regulations and confirmation of discharge", "cross_family": false } ] }, { "qid": "KOL-2026-10-4368-Q003", "text": "What is collision bulkhead what is speciality of this b/h than other?how much thick? How much the thickness of plating? what is the structural member to strengthen this bulkhead ?", "family": "Ship Construction & Stability", "subtopic": "Bulkhead Types", "tid": "KOL-2026-10-4368", "tray": "review", "candidates": [ { "answer_id": "BHD-TYPE-B-002", "score": 0.7152851819992065, "sibling_score": 0.7152851819992065, "answer_score": 0.6349867641925812, "sibling_qid": "CHE-2025-08-0037-Q006", "sibling_text": "collision bulkhead what makes it stronger by construction", "sibling_family": "", "via": "sibling", "answer_title": "Collision bulkhead vs ordinary transverse bulkhead — construction and strength", "cross_family": false }, { "answer_id": "BHD-TYPE-B-001", "score": 0.7011422514915466, "sibling_score": 0.7011422514915466, "answer_score": 0.5592280000448226, "sibling_qid": "KOC-2026-09-2199-Q004", "sibling_text": "collision bulkhead function and regulations", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Collision bulkhead — definition, location and SOLAS regulations", "cross_family": false }, { "answer_id": "BHD-TYP-C-003", "score": 0.5747239232063294, "sibling_score": null, "answer_score": 0.5747239232063294, "sibling_qid": "", "sibling_text": "bulkhead construction and strengthening bulkhead stiffened vertical plating resisting cargo liquid flooding loads plain bulkhead plate vertical stiffeners horizontal stringers on long spans", "sibling_family": "", "via": "answer_title", "answer_title": "Bulkhead construction and strengthening", "cross_family": false } ] }, { "qid": "KOL-2026-10-4368-Q004", "text": "Intact stability and criteria -- GM + ,GZ area under curve ", "family": "SOLAS", "subtopic": "Stability Curves (GZ / KN)", "tid": "KOL-2026-10-4368", "tray": "review", "candidates": [ { "answer_id": "STAB-GZ-P04-001", "score": 0.7434210777282715, "sibling_score": 0.7434210777282715, "answer_score": 0.48993051052093506, "sibling_qid": "KOL-2022-08-0668-Q003", "sibling_text": "intact stability criteria want to listen area under gz curve", "sibling_family": "", "via": "sibling", "answer_title": "Dynamic stability — the area under the GZ curve", "cross_family": false }, { "answer_id": "STAB-GZ-P04-002", "score": 0.7112942337989807, "sibling_score": 0.7112942337989807, "answer_score": null, "sibling_qid": "KOL-2025-11-1128-Q003", "sibling_text": "intact stability criteria asked specifically about 4 different criteria and their value like gm gz", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Intact stability criteria — the IS Code 2008 values", "cross_family": false }, { "answer_id": "STAB-GZ-P01-001", "score": 0.6274600028991699, "sibling_score": 0.6274600028991699, "answer_score": 0.4111603319644928, "sibling_qid": "KOL-2026-05-0047-Q003", "sibling_text": "gz curve stability", "sibling_family": "Stability Curves (GZ / KN)", "via": "sibling", "answer_title": "Draw and explain the statical stability (GZ) curve", "cross_family": true } ] }, { "qid": "KOL-2026-10-4368-Q005", "text": "what is category A machinery space , Which ship is not coming under category A machinery space? May be Nuclear ship ", "family": "SOLAS - Fire Safety", "subtopic": "A-60 / B-Class", "tid": "KOL-2026-10-4368", "tray": "review", "candidates": [ { "answer_id": "A60-BCLASS-005", "score": 0.7303016185760498, "sibling_score": 0.7303016185760498, "answer_score": 0.5719758093357086, "sibling_qid": "KOL-2025-09-1033-Q003", "sibling_text": "as per solas category a machinery space category b machinery space which type of ship have category b", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Machinery space of category A (and ‘category B’)", "cross_family": false }, { "answer_id": "FFF-A-002", "score": 0.5990471243858337, "sibling_score": 0.5990471243858337, "answer_score": null, "sibling_qid": "KOL-2025-07-0991-Q008", "sibling_text": "what is catageroy a machinery space as per solas and which chapter", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fixed firefighting in the engine room and machinery spaces", "cross_family": false }, { "answer_id": "ENG-NOM-006", "score": 0.5653516054153442, "sibling_score": 0.5653516054153442, "answer_score": null, "sibling_qid": "KOL-2025-03-1968-Q002", "sibling_text": "type of ship and engine nomeniclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Short-form asks: SMC-C, LMC, and ME vs MC quickly", "cross_family": true } ] }, { "qid": "KOL-2026-10-4368-Q006", "text": "How you will find the initial metacentric height by GZ curve? -- draw tangent from the origin and vertical line from the one Radian on x axis .. intersection of this give GM initial", "family": "Ship Construction & Stability", "subtopic": "Stability Curves (GZ / KN)", "tid": "KOL-2026-10-4368", "tray": "review", "candidates": [ { "answer_id": "STAB-GZ-P01-001", "score": 0.7340279221534729, "sibling_score": 0.7340279221534729, "answer_score": 0.5131803482770919, "sibling_qid": "KOC-2026-09-2192-Q010", "sibling_text": "draw gz curve how to find initial gm", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Draw and explain the statical stability (GZ) curve", "cross_family": false }, { "answer_id": "STAB-GZ-P04-003", "score": 0.7206811904907227, "sibling_score": 0.7206811904907227, "answer_score": null, "sibling_qid": "KOC-2025-12-0748-Q004", "sibling_text": "draw gz curve with initial ve metacentric hight", "sibling_family": "", "via": "sibling", "answer_title": "Negative GM and the angle of loll", "cross_family": false }, { "answer_id": "GM-META-003", "score": 0.6133317351341248, "sibling_score": 0.6133317351341248, "answer_score": 0.5247678518295288, "sibling_qid": "MUM-2024-09-0210-Q002", "sibling_text": "angle for initial gm", "sibling_family": "", "via": "sibling", "answer_title": "Finding the initial GM on board", "cross_family": false } ] }, { "qid": "KOL-2026-10-4369-Q001", "text": "Fuel high pressure pipe purging for auxiliary engine ?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Line / Gas Line Safeties", "tid": "KOL-2026-10-4369", "tray": "review", "candidates": [ { "answer_id": "AEFP-471-009", "score": 0.7039953470230103, "sibling_score": 0.7039953470230103, "answer_score": 0.5296252071857452, "sibling_qid": "KOL-2025-10-3861-Q003", "sibling_text": "aux engine fuel pump overhaul fuel pump hp pipe in aux engine purging answered", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "How is AE fuel-pump overhaul associated with fuel-pump and HP-pipe purging?", "cross_family": true }, { "answer_id": "FLGLS-002", "score": 0.6991958022117615, "sibling_score": 0.6991958022117615, "answer_score": 0.49239247441291806, "sibling_qid": "KOL-2024-10-3720-Q002", "sibling_text": "how to purge high pressure pipe and fuel injector in main engine", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Purging a HP fuel line / injector and confirming all air is removed", "cross_family": false }, { "answer_id": "FLGLS-001", "score": 0.6826096177101135, "sibling_score": 0.6826096177101135, "answer_score": null, "sibling_qid": "MUM-2025-11-2479-Q003", "sibling_text": "fuel pp high pr pipe removed now what all checks", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "HP fuel pipe — construction, fuel/gas-line safeties and post-removal checks", "cross_family": false } ] }, { "qid": "KOL-2026-10-4369-Q002", "text": "Rudder painting inside ?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Painting", "tid": "KOL-2026-10-4369", "tray": "review", "candidates": [ { "answer_id": "HULL-PAINT-002", "score": 0.811123251914978, "sibling_score": 0.811123251914978, "answer_score": null, "sibling_qid": "CHE-2026-02-0110-Q012", "sibling_text": "rudder internal painting", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Types of hull coating, the paint scheme by section, and why each is used", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.811123251914978, "sibling_score": 0.811123251914978, "answer_score": null, "sibling_qid": "MUM-2026-05-3150-Q003", "sibling_text": "rudder internal painting", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "TRS-002", "score": 0.5709201693534851, "sibling_score": 0.5709201693534851, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false } ] }, { "qid": "KOL-2026-10-4369-Q003", "text": "Rudder cracks detection ?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2026-10-4369", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.7152886986732483, "sibling_score": 0.7152886986732483, "answer_score": null, "sibling_qid": "MUM-2026-04-2689-Q008", "sibling_text": "rudder crack repair", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "STS-P02-005", "score": 0.6051504015922546, "sibling_score": 0.6051504015922546, "answer_score": null, "sibling_qid": "KOL-2017-11-3103-Q004", "sibling_text": "tail and shaft crack detection checks", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "STS-P02-05 - Tail shaft removal, drydock inspection and pre-flooding checks", "cross_family": true }, { "answer_id": "DUS-P5-05", "score": 0.5298815667629242, "sibling_score": null, "answer_score": 0.5298815667629242, "sibling_qid": "", "sibling_text": "rudder checks and rudder blade tightness leak test in drydock visual checks coating condition cavitation erosion on the blade leading edge propeller side face sacrificial anodes against the approved cathodic protection plan grounding continuity against the approved acceptance criterion plate and weld cracks pintle clearance measured with feeler the numerical acceptance limit is class specific and ", "sibling_family": "", "via": "answer_title", "answer_title": "Rudder checks and rudder-blade tightness/leak test in drydock", "cross_family": false } ] }, { "qid": "KOL-2026-10-4369-Q004", "text": "Chain checks after repair?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Chain & Tensioning", "tid": "KOL-2026-10-4369", "tray": "review", "candidates": [ { "answer_id": "CHAIN-TENS-B-005", "score": 0.6989452242851257, "sibling_score": 0.6989452242851257, "answer_score": null, "sibling_qid": "KOL-2023-10-4028-Q008", "sibling_text": "chain repaired after checks cross tightening procedure", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Checks and precautions after tightening, renewal or repair", "cross_family": false }, { "answer_id": "CHAIN-TENS-B-002", "score": 0.6040818691253662, "sibling_score": 0.6040818691253662, "answer_score": null, "sibling_qid": "KOL-2023-12-3661-Q005", "sibling_text": "chain repair", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Changing a damaged link and renewing the main-engine chain", "cross_family": false }, { "answer_id": "CHAIN-TENS-A-004", "score": 0.5927826762199402, "sibling_score": 0.5927826762199402, "answer_score": 0.38242247402668, "sibling_qid": "KOL-2021-03-3387-Q002", "sibling_text": "chain inspection", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Chain-Case / Chain-Drive Inspection", "cross_family": false } ] }, { "qid": "KOL-2026-10-4369-Q005", "text": "Cam shaft timing check ?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Cam & Lead", "tid": "KOL-2026-10-4369", "tray": "review", "candidates": [ { "answer_id": "FCAM-LEAD-P04-001", "score": 0.701336145401001, "sibling_score": 0.701336145401001, "answer_score": null, "sibling_qid": "MUM-2024-11-2779-Q003", "sibling_text": "slippage of cam during running engine indications wants hear timing exh gas temp deviation imbalance vibration etc cam slippage allowance", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel cam lead, cam profile, negative cam and cam slip", "cross_family": false }, { "answer_id": "CAM-437-001", "score": 0.6872997879981995, "sibling_score": 0.6872997879981995, "answer_score": null, "sibling_qid": "MUM-2026-05-3323-Q003", "sibling_text": "how camshaft driving", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Function of the camshaft in a main (MC) engine", "cross_family": false }, { "answer_id": "CHAIN-TENS-A-004", "score": 0.6821316480636597, "sibling_score": 0.6821316480636597, "answer_score": null, "sibling_qid": "KOL-2018-01-3112-Q003", "sibling_text": "checks in cam shaft chain drive", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Chain-Case / Chain-Drive Inspection", "cross_family": true } ] }, { "qid": "KOL-2026-10-4369-Q006", "text": "Exhaust valve tests after overhauling ? Decider cross ques", "family": "2-Stroke - Exhaust, Valve & Starting Air", "subtopic": "Exhaust Valve", "tid": "KOL-2026-10-4369", "tray": "review", "candidates": [ { "answer_id": "EXV-P02-001", "score": 0.7844031453132629, "sibling_score": 0.7844031453132629, "answer_score": 0.48872724175453186, "sibling_qid": "KOL-2026-04-3944-Q007", "sibling_text": "test on overhauled exhaust valve wants to hear give air supply one time and check for dropping of valve", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve overhaul & dismantling — procedure and precautions", "cross_family": false }, { "answer_id": "EXHV-080-BF37-003", "score": 0.7550339102745056, "sibling_score": 0.7550339102745056, "answer_score": null, "sibling_qid": "MUM-2025-02-2270-Q006", "sibling_text": "after overhauling what checks done on exhaust valve", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "What clearances are taken after overhaul, how do you check seat and spindle, and the maximum allowances?", "cross_family": false }, { "answer_id": "EXHV-297-004", "score": 0.7385611534118652, "sibling_score": 0.7385611534118652, "answer_score": null, "sibling_qid": "MUM-2024-06-2229-Q001", "sibling_text": "exhaust valve check after overhaul in detail", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Checks, tests & overhaul points — before and after fitting", "cross_family": false } ] }, { "qid": "KOL-2026-10-4370-Q001", "text": "Why transformer is called daily live transformer?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Transformer Theory", "tid": "KOL-2026-10-4370", "tray": "new", "candidates": [ { "answer_id": "XFMR-THY-E-006", "score": 0.5573587417602539, "sibling_score": 0.5573587417602539, "answer_score": 0.32392278909683225, "sibling_qid": "KOL-2025-12-2921-Q001", "sibling_text": "all day efficiency of transformer", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Efficiency and all-day efficiency", "cross_family": false }, { "answer_id": "XFMR-THY-D-001", "score": 0.5095345973968506, "sibling_score": 0.5095345973968506, "answer_score": 0.30231433659791945, "sibling_qid": "CHE-2026-05-0539-Q008", "sibling_text": "transformer", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Transformer — principle and working", "cross_family": false }, { "answer_id": "XFMR-A-002", "score": 0.48577576875686646, "sibling_score": 0.48577576875686646, "answer_score": null, "sibling_qid": "MUM-2026-01-1842-Q009", "sibling_text": "test for transformer", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Transformer maintenance, checks and safeties", "cross_family": false } ] }, { "qid": "KOL-2026-10-4370-Q002", "text": "Salient pole details ?", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator / Generator", "tid": "KOL-2026-10-4370", "tray": "new", "candidates": [ { "answer_id": "ALT-GEN-P04-007", "score": 0.45948702096939087, "sibling_score": 0.45948702096939087, "answer_score": null, "sibling_qid": "KOC-2025-08-1568-Q005", "sibling_text": "why 8poles", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Frequency, poles, speed and 50/60 Hz relation", "cross_family": false }, { "answer_id": "IM-TSS-P01-004", "score": 0.4089452028274536, "sibling_score": 0.4089452028274536, "answer_score": null, "sibling_qid": "KOL-2025-09-2854-Q013", "sibling_text": "how to find number of pole", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Synchronous speed, poles and Ns = 120 f / P", "cross_family": true }, { "answer_id": "SYNC-ASYNC-A-002", "score": 0.4083910882472992, "sibling_score": 0.4083910882472992, "answer_score": null, "sibling_qid": "KOL-2025-09-2856-Q004", "sibling_text": "salient pole of synchronous motor and function", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Construction and main parts of a synchronous motor", "cross_family": false } ] }, { "qid": "KOL-2026-10-4370-Q003", "text": "ICCP and why earthing needed and from where current is generated ?", "family": "Electrical - ICCP & Cathodic Protection", "subtopic": "ICCP", "tid": "KOL-2026-10-4370", "tray": "new", "candidates": [ { "answer_id": "ICCP-119-P01-003", "score": 0.5965304374694824, "sibling_score": 0.5965304374694824, "answer_score": null, "sibling_qid": "KOL-2026-01-2948-Q005", "sibling_text": "iccp working how much current", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP values, impressed-current meaning, anode/cathode roles and materials", "cross_family": false }, { "answer_id": "ICCP-119-P01-002", "score": 0.5744834542274475, "sibling_score": 0.5744834542274475, "answer_score": null, "sibling_qid": "MUM-2026-02-1919-Q002", "sibling_text": "iccp circuit explain and values of current and voltage", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP circuit / control arrangement, construction and main components", "cross_family": false }, { "answer_id": "ICCP-P02-001", "score": 0.5711272358894348, "sibling_score": 0.5711272358894348, "answer_score": null, "sibling_qid": "KOC-2022-10-1203-Q006", "sibling_text": "iccp working why iccp is provided in the forward and aft reference electrodes voltage values", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP reference cell / reference electrode — purpose, material, location, selection", "cross_family": false } ] }, { "qid": "KOL-2026-10-4370-Q004", "text": "Motor amp is 5 amp can U use 6amp fuse ?", "family": "Electrical - Motors & Starters", "subtopic": "", "tid": "KOL-2026-10-4370", "tray": "review", "candidates": [ { "answer_id": "FUSE-HRC-006", "score": 0.6785707473754883, "sibling_score": 0.6785707473754883, "answer_score": 0.4696518093347549, "sibling_qid": "KOL-2025-09-2859-Q004", "sibling_text": "can a motor with working current of 4 ampere has a fuse of 5 amperes", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Selecting and interpreting fuse rating – current, voltage, and the motor trap", "cross_family": true }, { "answer_id": "OC-UV-TRIP-003", "score": 0.5854845643043518, "sibling_score": 0.5854845643043518, "answer_score": null, "sibling_qid": "KOL-2022-05-2561-Q001", "sibling_text": "motor is running with little high amperage 15amp norm but taking 17amp will it trip", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Overload trip — activation, time delay and protection effect", "cross_family": true }, { "answer_id": "FUSE-HRC-005", "score": 0.5703531503677368, "sibling_score": 0.5703531503677368, "answer_score": null, "sibling_qid": "KOL-2019-01-2256-Q004", "sibling_text": "y fuse not used instead of thermistor in motor protection how fuse works material", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Fuse vs other protective devices (relay, breaker, contactor, thermistor); and HRC vs HBC", "cross_family": true } ] }, { "qid": "KOL-2026-10-4371-Q001", "text": "How will you know your ship is at angle of loll by standing outside? Step to correct it ?", "family": "Ship Construction & Stability", "subtopic": "Angle of Loll / Stiff & Tender", "tid": "KOL-2026-10-4371", "tray": "review", "candidates": [ { "answer_id": "LOLL-P02-003", "score": 0.7431235909461975, "sibling_score": 0.7431235909461975, "answer_score": 0.533135712146759, "sibling_qid": "CHE-2026-05-0566-Q008", "sibling_text": "ship listed at angle of loll how will you make sure that is angle of loll by looking at it", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "2. Identifying loll from the jetty — loll versus list and heel", "cross_family": false }, { "answer_id": "LOLL-P02-002", "score": 0.6981946229934692, "sibling_score": 0.6981946229934692, "answer_score": 0.5458309322595596, "sibling_qid": "KOL-2026-02-1171-Q002", "sibling_text": "angle of loll how will decide from out of ship and correction if stwd is listed what to do", "sibling_family": "", "via": "sibling", "answer_title": "1. Correcting angle of loll — the ballasting sequence", "cross_family": false }, { "answer_id": "LOLL-CORE-P01-001", "score": 0.650231122970581, "sibling_score": 0.650231122970581, "answer_score": 0.5047384679317474, "sibling_qid": "KOL-2023-07-0756-Q001", "sibling_text": "angle of loll how will find a ship is at angle of loll or not", "sibling_family": "", "via": "sibling", "answer_title": "What is angle of loll?", "cross_family": false } ] }, { "qid": "KOL-2026-10-4371-Q002", "text": "On the basis of freeboard how are ships are classified ?", "family": "Ship Construction", "subtopic": "", "tid": "KOL-2026-10-4371", "tray": "review", "candidates": [ { "answer_id": "LLST-AB-001", "score": 0.7299450039863586, "sibling_score": 0.7299450039863586, "answer_score": 0.5606183707714081, "sibling_qid": "KOL-2019-06-0288-Q001", "sibling_text": "freeboard freeboard according to ship types class of ship type b class of ship", "sibling_family": "", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-004", "score": 0.6685622930526733, "sibling_score": 0.6685622930526733, "answer_score": 0.554982715845108, "sibling_qid": "KOC-2025-07-0620-Q011", "sibling_text": "freeboard assignment of passenger ships why large freeboard is passenger ship a class b type why", "sibling_family": "", "via": "sibling", "answer_title": "Passenger-ship freeboard and classification in the load-line context", "cross_family": false }, { "answer_id": "LLC-P05-001", "score": 0.6529902815818787, "sibling_score": 0.6529902815818787, "answer_score": null, "sibling_qid": "CHE-2026-05-0560-Q006", "sibling_text": "freeboard", "sibling_family": "Ship Construction", "via": "sibling", "answer_title": "Freeboard, deck line, Plimsoll mark, assignment and scantling draft", "cross_family": false } ] }, { "qid": "KOL-2026-10-4371-Q003", "text": "In ISM code what is management review? ", "family": "ISM Code", "subtopic": "ISM / SMS / Audit", "tid": "KOL-2026-10-4371", "tray": "review", "candidates": [ { "answer_id": "ISM-AUD-P02-006", "score": 0.747829258441925, "sibling_score": 0.747829258441925, "answer_score": 0.47100352346897123, "sibling_qid": "MUM-2026-06-3542-Q002", "sibling_text": "management review of ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Master's review, company / management review and change management", "cross_family": false }, { "answer_id": "ISM-ELEM-006", "score": 0.6501789689064026, "sibling_score": 0.6501789689064026, "answer_score": 0.46419363021850585, "sibling_qid": "MUM-2025-06-0335-Q001", "sibling_text": "management review", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Master’s review & management review", "cross_family": false }, { "answer_id": "ISM-AUD-P02-002", "score": 0.609463632106781, "sibling_score": 0.609463632106781, "answer_score": null, "sibling_qid": "MUM-2022-09-0044-Q001", "sibling_text": "ism review", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM Code — what it is, purpose, objectives and structure", "cross_family": false } ] }, { "qid": "KOL-2026-10-4371-Q004", "text": "Practically how to take shore supply as 2E ?", "family": "Electrical - Distribution & MSB", "subtopic": "High Voltage System / Earthing / Shore Supply", "tid": "KOL-2026-10-4371", "tray": "new", "candidates": [ { "answer_id": "SHORE-CONN-P03-001", "score": 0.6279968023300171, "sibling_score": 0.6279968023300171, "answer_score": 0.362140479683876, "sibling_qid": "KOL-2022-01-2531-Q002", "sibling_text": "things to check as 2e before taking shore supply", "sibling_family": "", "via": "sibling", "answer_title": "Taking electrical shore power in dry dock — preparation, checks and procedure", "cross_family": false }, { "answer_id": "SHORE-CONN-P02-001", "score": 0.5560762882232666, "sibling_score": 0.5560762882232666, "answer_score": 0.3373682156205177, "sibling_qid": "KOL-2023-07-2670-Q004", "sibling_text": "shore supply parameters account for", "sibling_family": "", "via": "sibling", "answer_title": "The shore connection box — what is in it, where it is, and the interlocks", "cross_family": false }, { "answer_id": "SHORE-CONN-P04-003", "score": 0.3808819860219955, "sibling_score": null, "answer_score": 0.3808819860219955, "sibling_qid": "", "sibling_text": "operating on shore supply running loads cargo use and fault finding before shore on the ship s generators are stopped and their breakers open dead bus changeover on shore run the essential harbour set within shore capacity lighting ventilation cooling bilge fire pumps as needed refrigeration chargers workshop accommodation in dry dock the limited docked set no main propulsion", "sibling_family": "", "via": "answer_title", "answer_title": "Operating on shore supply: running loads, cargo use, and fault-finding", "cross_family": false } ] }, { "qid": "KOL-2026-10-4371-Q005", "text": "Type of starter in your ship? most common cross in it are how star Delta conversation happen who decide ?", "family": "Electrical - Motors & Starters", "subtopic": "Star-Delta Starter", "tid": "KOL-2026-10-4371", "tray": "new", "candidates": [ { "answer_id": "SDST-A-001", "score": 0.6235386729240417, "sibling_score": 0.6235386729240417, "answer_score": 0.3972968265414238, "sibling_qid": "KOC-2024-01-1323-Q006", "sibling_text": "starters type explain star delta", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false }, { "answer_id": "SDST-B-001", "score": 0.35261580944061277, "sibling_score": null, "answer_score": 0.35261580944061277, "sibling_qid": "", "sibling_text": "explain the star delta control circuit timer interlocks changeover and how the switching point is chosen start path includes stop contact overload contact start button main hold in auxiliary star delta electrical interlocks and timer main and star energise for start timer begins timing main auxiliary seals the circuit", "sibling_family": "", "via": "answer_title", "answer_title": "Explain the star-delta control circuit - timer, interlocks, changeover and how the switching point is chosen.", "cross_family": false }, { "answer_id": "TG-MOTOR-003", "score": 0.33957977294921876, "sibling_score": null, "answer_score": 0.33957977294921876, "sibling_qid": "", "sibling_text": "what starter is used on the turning gear motor and why not a star delta or a soft starter direct on line dol reversing starter two contactors fwd rev interlocked full starting torque needed from standstill so dol", "sibling_family": "", "via": "answer_title", "answer_title": "What starter is used on the turning gear motor, and why not a star-delta or a soft starter?", "cross_family": false } ] }, { "qid": "KOL-2026-10-4371-Q006", "text": "How does rpm sensor of main engine works ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Encoders", "tid": "KOL-2026-10-4371", "tray": "review", "candidates": [ { "answer_id": "PROX-SW-004", "score": 0.7020338773727417, "sibling_score": 0.7020338773727417, "answer_score": 0.5256355226039886, "sibling_qid": "NOI-2026-09-0007-Q005", "sibling_text": "how main engine rpm is sensed", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Speed measurement by sensor, and the proximity sensor working principle", "cross_family": true }, { "answer_id": "EPC-P03-006", "score": 0.6309963464736938, "sibling_score": 0.6309963464736938, "answer_score": null, "sibling_qid": "KOL-2026-05-4089-Q009", "sibling_text": "how rpm indicator of turbocharger tachometer working principle", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "How does a tachometer work — working principle and location — and what is a tacho-generator?", "cross_family": false }, { "answer_id": "VIB-BAL-A-005", "score": 0.6035794615745544, "sibling_score": 0.6035794615745544, "answer_score": null, "sibling_qid": "KOL-2018-01-2173-Q001", "sibling_text": "vibration analyser accelometer working 2 turbocharger rpm sensor working 3 during synchronising how governor is controlled how dc motor control governor 4 how lub oil low pressure trip works in generator how circuit is operated", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "VIB-A-05 — Measuring and monitoring engine vibration — instruments and parameters", "cross_family": true } ] }, { "qid": "KOL-2026-10-4372-Q001", "text": "Centrifugal pump clearances ?", "family": "Pumps - Centrifugal & PD", "subtopic": "Centrifugal Pump", "tid": "KOL-2026-10-4372", "tray": "review", "candidates": [ { "answer_id": "PCD-P03-01", "score": 0.7983562350273132, "sibling_score": 0.7983562350273132, "answer_score": 0.5267427831888198, "sibling_qid": "KOL-2025-07-3811-Q002", "sibling_text": "clearances in centrifugal pump", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Centrifugal pump overhaul — procedure, checks, clearances and survey evidence", "cross_family": false }, { "answer_id": "WRG-002", "score": 0.789482057094574, "sibling_score": 0.789482057094574, "answer_score": 0.5373339295387268, "sibling_qid": "KOL-2020-03-3980-Q004", "sibling_text": "centrifugal pump clearance between impeller and casing", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Wear-ring and impeller-to-casing clearance — how to know it is good, and what happens when it opens up or closes in", "cross_family": false }, { "answer_id": "PCD-P05-03", "score": 0.736328661441803, "sibling_score": 0.736328661441803, "answer_score": null, "sibling_qid": "KOC-2025-10-1959-Q014", "sibling_text": "works on pumps i said gear pump some clearance values", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Gear pump — construction, working, backlash, tooth profile, safety valve, why not for sea water", "cross_family": false } ] }, { "qid": "KOL-2026-10-4372-Q002", "text": "Reciprocating bilge pump defects ?", "family": "Pumps - Centrifugal & PD", "subtopic": "Bilge Line / Pump", "tid": "KOL-2026-10-4372", "tray": "review", "candidates": [ { "answer_id": "PCD-P04-04", "score": 0.8257081508636475, "sibling_score": 0.8257081508636475, "answer_score": 0.5304931819438934, "sibling_qid": "KOL-2020-01-1515-Q002", "sibling_text": "reciprocating pump defects bilge pump", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "04. Bilge / reciprocating pump overhaul — checks, valves and piston-ring wear", "cross_family": false }, { "answer_id": "PPS-622-004", "score": 0.7374795079231262, "sibling_score": 0.7374795079231262, "answer_score": 0.5194785356521606, "sibling_qid": "CHE-2026-08-3890-Q004", "sibling_text": "bilge reciprocating pump loses suction reasons", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "The bilge or ballast pump is not taking suction — reasons, how to identify the problem, how to rectify it. What does the suction gauge read, and what is suction head?", "cross_family": false }, { "answer_id": "PCD-P04-05", "score": 0.6852933168411255, "sibling_score": 0.6852933168411255, "answer_score": null, "sibling_qid": "KOC-2025-08-1936-Q001", "sibling_text": "reciprocating bilge pump valves explain", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "05. Reciprocating pump — construction, working and how you know it is discharging", "cross_family": false } ] }, { "qid": "KOL-2026-10-4372-Q003", "text": "Rudder pressure test ?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "KOL-2026-10-4372", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.8014890551567078, "sibling_score": 0.8014890551567078, "answer_score": null, "sibling_qid": "MUM-2026-02-1272-Q011", "sibling_text": "pressure test of rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "DUS-P5-05", "score": 0.4221596777439117, "sibling_score": null, "answer_score": 0.4221596777439117, "sibling_qid": "", "sibling_text": "rudder checks and rudder blade tightness leak test in drydock visual checks coating condition cavitation erosion on the blade leading edge propeller side face sacrificial anodes against the approved cathodic protection plan grounding continuity against the approved acceptance criterion plate and weld cracks pintle clearance measured with feeler the numerical acceptance limit is class specific and ", "sibling_family": "", "via": "answer_title", "answer_title": "Rudder checks and rudder-blade tightness/leak test in drydock", "cross_family": false }, { "answer_id": "RUD-DROP-002", "score": 0.42093155831098555, "sibling_score": null, "answer_score": 0.42093155831098555, "sibling_qid": "", "sibling_text": "rudder clearances which where and how taken pintle bush clearance at each pintle top bottom f a and p s on long feeler gauges or pintle od vs bush id by caliper top mid bottom the maximum is the clearance renew the bush at the maker class limit carrier bearing wear down the rudder drop poker trammel gauge hull datum to stock mark against the recorded newbuilding reading", "sibling_family": "", "via": "answer_title", "answer_title": "Rudder clearances: which, where and how taken", "cross_family": false } ] }, { "qid": "KOL-2026-10-4372-Q004", "text": "Bend test ?", "family": "Ship Construction & Stability", "subtopic": "Inclining Experiment", "tid": "KOL-2026-10-4372", "tray": "new", "candidates": [ { "answer_id": "MATPROP-A-006", "score": 0.6277130842208862, "sibling_score": 0.6277130842208862, "answer_score": 0.3997536480426788, "sibling_qid": "KOL-2020-06-1535-Q007", "sibling_text": "bent test how to do bent test", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Destructive and material tests", "cross_family": true }, { "answer_id": "CRB-001", "score": 0.5254054069519043, "sibling_score": 0.5254054069519043, "answer_score": null, "sibling_qid": "NOI-2026-09-0013-Q008", "sibling_text": "how to check bending of con rod", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What checks are carried out on the connecting rod at decarbonisation? Explain the ovality and trueness checks — how many readings, at which positions, with what instrument, and the permissible limit.", "cross_family": true }, { "answer_id": "BM-SF-CF-001", "score": 0.48420464992523193, "sibling_score": 0.48420464992523193, "answer_score": 0.3309580355882645, "sibling_qid": "MUM-2026-06-3575-Q007", "sibling_text": "what is angle of contra flexure", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Point (“angle”) of contraflexure — what it is and how to find it", "cross_family": false } ] }, { "qid": "KOL-2026-10-4372-Q005", "text": "Shrink fitting ?", "family": "Drydock & Underwater Surveys", "subtopic": "Propeller / Pilgrim Nut", "tid": "KOL-2026-10-4372", "tray": "review", "candidates": [ { "answer_id": "PROP-PIL-A-001", "score": 0.6643528938293457, "sibling_score": 0.6643528938293457, "answer_score": null, "sibling_qid": "KOL-2026-07-4285-Q008", "sibling_text": "shrink fitting", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Pilgrim / SKF hydraulic nut — fitting, push-up, extraction and removal", "cross_family": false }, { "answer_id": "MUFF-COUP-004", "score": 0.5268725752830505, "sibling_score": 0.5268725752830505, "answer_score": 0.3466876208782196, "sibling_qid": "KOL-2018-01-3117-Q003", "sibling_text": "interference fit n shrink fit", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Shrink / interference / taper fit — and its use for keyless sleeves and couplings", "cross_family": false }, { "answer_id": "SHAFT-ALN-002", "score": 0.45686236023902893, "sibling_score": 0.45686236023902893, "answer_score": null, "sibling_qid": "KOL-2023-01-3590-Q006", "sibling_text": "fair curve alignment method n use of influence number", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Fair-curve alignment, influence numbers and propeller overhang", "cross_family": false } ] }, { "qid": "KOL-2026-10-4372-Q006", "text": " ME crankpin bearing overhaul ? Decider ques", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankpin Checks", "tid": "KOL-2026-10-4372", "tray": "review", "candidates": [ { "answer_id": "CRPIN-CHK-P01-004", "score": 0.7369144558906555, "sibling_score": 0.7369144558906555, "answer_score": null, "sibling_qid": "KOL-2022-08-3559-Q003", "sibling_text": "crankpin bearing beyond repair actions", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Repairing an oval or worn crankpin — grinding, undersize bearings, renewal", "cross_family": false }, { "answer_id": "CRKPIN-P02-001", "score": 0.7230811715126038, "sibling_score": 0.7230811715126038, "answer_score": 0.5130367159843444, "sibling_qid": "KOC-2024-10-0929-Q012", "sibling_text": "crankpin bearing overhaul", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankpin (bottom-end) bearing — removal, overhaul and survey inspection", "cross_family": false }, { "answer_id": "CRKPIN-P02-003", "score": 0.7182592749595642, "sibling_score": 0.7182592749595642, "answer_score": 0.5491223663091659, "sibling_qid": "KOL-2022-09-3567-Q004", "sibling_text": "crank pin bearing damaged how to run m e rao decider", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankpin or bearing beyond repair / no spare — casualty action", "cross_family": false } ] }, { "qid": "KOL-2026-10-4373-Q001", "text": "High voltage effect on human body? specific name?", "family": "Electrical - Distribution & MSB", "subtopic": "High Voltage System / Earthing / Shore Supply", "tid": "KOL-2026-10-4373", "tray": "review", "candidates": [ { "answer_id": "T038-P01-002", "score": 0.7261658310890198, "sibling_score": 0.7261658310890198, "answer_score": null, "sibling_qid": "MUM-2026-06-3441-Q001", "sibling_text": "what s high voltage", "sibling_family": "Electrical - Distribution & MSB", "via": "sibling", "answer_title": "HV system onboard — layout, components, applications, earthing & protection", "cross_family": false }, { "answer_id": "NER-HV-P04-001", "score": 0.7209634780883789, "sibling_score": 0.7209634780883789, "answer_score": null, "sibling_qid": "KOL-2017-09-2149-Q004", "sibling_text": "high voltage ner", "sibling_family": "", "via": "sibling", "answer_title": "What an NER is, where it is used, and why it is fitted in HV systems", "cross_family": false }, { "answer_id": "HV-SYS-P04-001", "score": 0.7207916378974915, "sibling_score": 0.7207916378974915, "answer_score": null, "sibling_qid": "KOL-2026-07-4247-Q007", "sibling_text": "high voltage hazards", "sibling_family": "Electrical - Distribution & MSB", "via": "sibling", "answer_title": "HV-SYS-P04-001 - HV hazards, advantages and safeties", "cross_family": false } ] }, { "qid": "KOL-2026-10-4373-Q002", "text": "Thermistor? how it works? how it protect the component? Actual working?", "family": "Automation & Controls", "subtopic": "Thermistor / Thermostat", "tid": "KOL-2026-10-4373", "tray": "review", "candidates": [ { "answer_id": "AUC-SEN-05", "score": 0.7364431023597717, "sibling_score": 0.7364431023597717, "answer_score": 0.5262280881404876, "sibling_qid": "KOL-2026-01-2947-Q005", "sibling_text": "thermistor working", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Thermistor — principle, NTC and PTC behaviour, and shipboard applications", "cross_family": false }, { "answer_id": "SPHS-B-015", "score": 0.7214187979698181, "sibling_score": 0.7214187979698181, "answer_score": 0.5709163755178451, "sibling_qid": "KOL-2019-04-2277-Q005", "sibling_text": "motor protection what is thermistor", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Thermistors — how do they avoid single phasing, and what is the working principle?", "cross_family": false }, { "answer_id": "AUC-SEN-06", "score": 0.6756859421730042, "sibling_score": 0.6756859421730042, "answer_score": 0.5444576859474182, "sibling_qid": "KOL-2025-08-2843-Q004", "sibling_text": "thermistor thermostat", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Thermistor versus thermostat — bimetallic and wax-element principles", "cross_family": false } ] }, { "qid": "KOL-2026-10-4373-Q003", "text": "Disadvantages of electrical propulsion ? advantages of electrical propulsion?", "family": "Turbocharger", "subtopic": "Turbocharger Construction & Surging", "tid": "KOL-2026-10-4373", "tray": "review", "candidates": [ { "answer_id": "RES-PROP-P03-001", "score": 0.7944157123565674, "sibling_score": 0.7944157123565674, "answer_score": 0.5907794803380966, "sibling_qid": "KOL-2020-02-2371-Q001", "sibling_text": "electrical propulsion advantage", "sibling_family": "", "via": "sibling", "answer_title": "1. Electric (diesel-electric) propulsion: arrangement, speed control, advantages and limitations", "cross_family": false }, { "answer_id": "HV-SYS-P02-001", "score": 0.6939115524291992, "sibling_score": 0.6939115524291992, "answer_score": 0.5166939437389374, "sibling_qid": "KOC-2025-03-1504-Q005", "sibling_text": "high voltage ship advantages", "sibling_family": "", "via": "sibling", "answer_title": "Why high voltage is used onboard ships", "cross_family": false }, { "answer_id": "DCMOT-A-001", "score": 0.6860166788101196, "sibling_score": 0.6860166788101196, "answer_score": null, "sibling_qid": "CHE-2025-08-0280-Q020", "sibling_text": "why dc motor prefer over ac motor in propulsion", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types, characteristics and shipboard use of DC motors", "cross_family": true } ] }, { "qid": "KOL-2026-10-4373-Q004", "text": "Integral controller? on what its output depend ? specific name.", "family": "Automation & Controls", "subtopic": "PID / Two-Step / Ratio Control", "tid": "KOL-2026-10-4373", "tray": "review", "candidates": [ { "answer_id": "PID-CTRL-002", "score": 0.7370147109031677, "sibling_score": 0.7370147109031677, "answer_score": 0.4469148933887482, "sibling_qid": "KOC-2021-11-1152-Q006", "sibling_text": "integral controller", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Proportional, integral and derivative actions", "cross_family": false }, { "answer_id": "CTRL-TL-003", "score": 0.7096309065818787, "sibling_score": 0.7096309065818787, "answer_score": null, "sibling_qid": "MUM-2026-01-0676-Q015", "sibling_text": "integral controller what it does", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Feedback, open/closed loop, offset, hysteresis, P-I-D action", "cross_family": false }, { "answer_id": "CTRL-TL-008", "score": 0.6146407723426819, "sibling_score": 0.6146407723426819, "answer_score": null, "sibling_qid": "KOL-2023-05-1931-Q003", "sibling_text": "cascade control proportional control and integral control difference", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Cascade control, the slave controller, and split-range control", "cross_family": false } ] }, { "qid": "KOL-2026-10-4373-Q005", "text": "Derivative controller ? on what its output depend ?specific name.", "family": "Automation & Controls", "subtopic": "PID / Two-Step / Ratio Control", "tid": "KOL-2026-10-4373", "tray": "review", "candidates": [ { "answer_id": "PID-CTRL-002", "score": 0.7477860450744629, "sibling_score": 0.7477860450744629, "answer_score": 0.3932235211133957, "sibling_qid": "KOL-2025-11-2900-Q004", "sibling_text": "derivative controller", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Proportional, integral and derivative actions", "cross_family": false }, { "answer_id": "GOV-P02-005", "score": 0.6436031460762024, "sibling_score": 0.6436031460762024, "answer_score": null, "sibling_qid": "KOL-2023-06-2663-Q002", "sibling_text": "pid control in governor how derivative action works", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "PID control, loop stability & detuning", "cross_family": false }, { "answer_id": "CTRL-006", "score": 0.4245778679847717, "sibling_score": null, "answer_score": 0.4245778679847717, "sibling_qid": "", "sibling_text": "types of controllers used onboard by action on off two step proportional p integral i derivative d and pi pd pid on off cycles around setpoint simple for slow tolerant loops", "sibling_family": "", "via": "answer_title", "answer_title": "Types of controllers used onboard", "cross_family": false } ] }, { "qid": "KOL-2026-10-4373-Q006", "text": "OP-Amp ?what it is(integrated circuit), what is does(specific name)", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Electrical Components / Electronics", "tid": "KOL-2026-10-4373", "tray": "review", "candidates": [ { "answer_id": "TC-A-006", "score": 0.7631123661994934, "sibling_score": 0.7631123661994934, "answer_score": 0.5804491519927978, "sibling_qid": "KOC-2024-09-1399-Q002", "sibling_text": "op amp explain", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "The operational amplifier — what it is and why \"operational\"", "cross_family": false }, { "answer_id": "ELEC-ELX-003", "score": 0.7583737969398499, "sibling_score": 0.7583737969398499, "answer_score": 0.5445138216018677, "sibling_qid": "KOL-2023-03-2640-Q003", "sibling_text": "what is opamp", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Operational amplifier — working, feedback and applications", "cross_family": false }, { "answer_id": "TCAP-B-005", "score": 0.7384193539619446, "sibling_score": 0.7384193539619446, "answer_score": 0.5918873995542526, "sibling_qid": "KOC-2022-09-1795-Q002", "sibling_text": "what s operational amplifier", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Operational amplifier — what it is, and where it works on board", "cross_family": false } ] }, { "qid": "KOL-2026-10-4374-Q001", "text": "Explain ventilation fans trip circuit and location of emergency stop for trip?", "family": "Cargo Ops - Tankers", "subtopic": "Cargo Plant / System", "tid": "KOL-2026-10-4374", "tray": "new", "candidates": [ { "answer_id": "REV-MOT-BF67-003", "score": 0.497367799282074, "sibling_score": 0.497367799282074, "answer_score": null, "sibling_qid": "KOL-2023-04-2652-Q007", "sibling_text": "e r vent fan circuit diagram shown a which type of starter in diagram b why two parellel contactor given c what are there for motor protection in circuit diagram", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw the reversing circuit, and where is motor reversing applied on board?", "cross_family": true }, { "answer_id": "REEF-COMP-002", "score": 0.4929928481578827, "sibling_score": 0.4929928481578827, "answer_score": null, "sibling_qid": "KOC-2023-10-1284-Q002", "sibling_text": "refer lo trip control circuit", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Lube-oil low-pressure / differential-pressure trip — how it works, tests and sets", "cross_family": true }, { "answer_id": "IGAT-583-001", "score": 0.4844989776611328, "sibling_score": 0.4844989776611328, "answer_score": null, "sibling_qid": "KOC-2026-09-2176-Q005", "sibling_text": "ig alarms and venting system", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "State all the alarms, trips and safety cut-outs provided on a tanker inert gas (IG) system.", "cross_family": false } ] }, { "qid": "KOL-2026-10-4374-Q002", "text": "Trip circuit is not working how to find fault in trip circuit?", "family": "Refrigeration & AC", "subtopic": "Reefer Compressor", "tid": "KOL-2026-10-4374", "tray": "review", "candidates": [ { "answer_id": "REEF-COMP-002", "score": 0.6585573554039001, "sibling_score": 0.6585573554039001, "answer_score": null, "sibling_qid": "KOC-2023-10-1284-Q002", "sibling_text": "refer lo trip control circuit", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Lube-oil low-pressure / differential-pressure trip — how it works, tests and sets", "cross_family": false }, { "answer_id": "RAC-HPLP-389-001", "score": 0.6339655518531799, "sibling_score": 0.6339655518531799, "answer_score": null, "sibling_qid": "MUM-2022-07-2136-Q006", "sibling_text": "ref comp hp trip what to check", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Refrigeration / AC compressor trips on high pressure — causes and checks", "cross_family": false }, { "answer_id": "OC-UV-TRIP-001", "score": 0.62616366147995, "sibling_score": 0.62616366147995, "answer_score": null, "sibling_qid": "KOC-2021-09-1146-Q014", "sibling_text": "approved voltage injection tester connect it to same leads and test at what voltage it trips", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Under-voltage trip / no-volt coil — purpose, working, onboard test and calibration", "cross_family": true } ] }, { "qid": "KOL-2026-10-4374-Q003", "text": "Continuity test procedure and position of selector switch? what is the range of ohmic value?", "family": "Electrical - Motors & Starters", "subtopic": "Continuity Test", "tid": "KOL-2026-10-4374", "tray": "new", "candidates": [ { "answer_id": "CONT-317-004", "score": 0.5745618343353271, "sibling_score": 0.5745618343353271, "answer_score": 0.4704441428184509, "sibling_qid": "CHE-2025-08-0039-Q005", "sibling_text": "continuity test of a long cable", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Continuity of a long cable or thick wire", "cross_family": false }, { "answer_id": "CONT-317-001", "score": 0.5743044018745422, "sibling_score": 0.5743044018745422, "answer_score": 0.4518165796995163, "sibling_qid": "MUM-2024-02-1425-Q002", "sibling_text": "how you do continuity test", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Continuity test of a motor winding — what it is and how it is done", "cross_family": false }, { "answer_id": "CB033-C-001", "score": 0.5589492321014404, "sibling_score": 0.5589492321014404, "answer_score": null, "sibling_qid": "MUM-2025-12-1838-Q001", "sibling_text": "acb contacor continuity test", "sibling_family": "", "via": "sibling", "answer_title": "How do you carry out maintenance and testing on an ACB / main circuit breaker?", "cross_family": false } ] }, { "qid": "KOL-2026-10-4374-Q004", "text": "HV system insulation cable name and properties? Why used what other cable type can we use ?", "family": "Electrical - Cables & Insulation", "subtopic": "", "tid": "KOL-2026-10-4374", "tray": "review", "candidates": [ { "answer_id": "CABLE-INSUL-D-001", "score": 0.7209361791610718, "sibling_score": 0.7209361791610718, "answer_score": 0.5307061731815338, "sibling_qid": "KOL-2025-11-2906-Q005", "sibling_text": "hv insulation cables", "sibling_family": "", "via": "sibling", "answer_title": "Insulation: materials, classes and required properties", "cross_family": false }, { "answer_id": "CABLE-INS-E-001", "score": 0.6916041970252991, "sibling_score": 0.6916041970252991, "answer_score": null, "sibling_qid": "KOL-2025-11-2909-Q002", "sibling_text": "cables used in hv system", "sibling_family": "", "via": "sibling", "answer_title": "LV, MV and HV cable & insulation requirements on ships", "cross_family": false }, { "answer_id": "CBL-INS-B-003", "score": 0.6865684390068054, "sibling_score": 0.6865684390068054, "answer_score": 0.5525059580802917, "sibling_qid": "KOL-2024-08-2730-Q003", "sibling_text": "type of cable in hv", "sibling_family": "", "via": "sibling", "answer_title": "Types of cables used on board and their purposes", "cross_family": false } ] }, { "qid": "KOL-2026-10-4374-Q005", "text": "Give the explanation of trueness of statement In synchronous motor armature is rotor and field is stator ", "family": "Electrical - Motors & Starters", "subtopic": "Rotor / Stator", "tid": "KOL-2026-10-4374", "tray": "new", "candidates": [ { "answer_id": "SYNC-ASY-C-001", "score": 0.6345328092575073, "sibling_score": 0.6345328092575073, "answer_score": 0.5000798165798187, "sibling_qid": "KOC-2026-05-0028-Q013", "sibling_text": "internal synchronous motor explain both stator and rotor are stationary how the flux will cut key ans he wanted rotating magnetic field", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Working principle of a synchronous motor", "cross_family": true }, { "answer_id": "ROT-STAT-A-002", "score": 0.618177592754364, "sibling_score": 0.618177592754364, "answer_score": null, "sibling_qid": "KOL-2016-08-2065-Q003", "sibling_text": "rotor construction of motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Rotor and stator construction of a three-phase induction motor", "cross_family": false }, { "answer_id": "ROTSTAT-C-003", "score": 0.6173076033592224, "sibling_score": 0.6173076033592224, "answer_score": null, "sibling_qid": "KOL-2026-04-2980-Q002", "sibling_text": "motor stator construction", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Stator construction, winding & types", "cross_family": false } ] }, { "qid": "KOL-2026-10-4374-Q006", "text": " In dc filtration inductor what do and how do ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "LO Filter", "tid": "KOL-2026-10-4374", "tray": "new", "candidates": [ { "answer_id": "TC-A-008", "score": 0.5145844995975494, "sibling_score": 0.4834863841533661, "answer_score": 0.5145844995975494, "sibling_qid": "KOL-2025-06-2790-Q006", "sibling_text": "what is an inductor key ans coiled conductor which resists change in current through it what s the advantage and disadvantage in hv system", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "answer_title", "answer_title": "The inductor and the filter choke — and inductance in an HV system", "cross_family": true }, { "answer_id": "TC-A-010", "score": 0.4507039785385132, "sibling_score": 0.4507039785385132, "answer_score": null, "sibling_qid": "CHE-2025-11-0312-Q004", "sibling_text": "inductance and capacitance on ac circuit and on dc circuit deciding", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Impedance and the RC circuit — finding Xc and XL", "cross_family": true }, { "answer_id": "EPC-P02-06", "score": 0.44459694623947144, "sibling_score": 0.44459694623947144, "answer_score": null, "sibling_qid": "CHE-2025-08-0269-Q005", "sibling_text": "define harmonic filter", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What are harmonics, where does the high voltage / distortion come from, and what is a harmonic filter — define, use and where fitted?", "cross_family": true } ] }, { "qid": "KOL-2026-10-4375-Q001", "text": "Ex(d) construction ?", "family": "Electrical - Motors & Starters", "subtopic": "Induction Motor (General / Working)", "tid": "KOL-2026-10-4375", "tray": "new", "candidates": [ { "answer_id": "EXD-EXI-A-001", "score": 0.5796679258346558, "sibling_score": 0.5796679258346558, "answer_score": null, "sibling_qid": "MUM-2026-07-3777-Q001", "sibling_text": "ex i and ex d", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Ex i (intrinsically safe) vs Ex d (flameproof / explosion-proof) — the difference", "cross_family": false }, { "answer_id": "EXD-EXI-A-002", "score": 0.5616455078125, "sibling_score": 0.5616455078125, "answer_score": 0.30110362023115156, "sibling_qid": "KOC-2022-07-0076-Q004", "sibling_text": "ex d", "sibling_family": "", "via": "sibling", "answer_title": "Ex d (flameproof / explosion-proof) — construction, shipboard applications and maintenance", "cross_family": false }, { "answer_id": "HAZ-EX-B-001", "score": 0.5285013318061829, "sibling_score": 0.5285013318061829, "answer_score": null, "sibling_qid": "MUM-2026-03-2019-Q002", "sibling_text": "ex i and ex d", "sibling_family": "", "via": "sibling", "answer_title": "Intrinsically safe (Ex i) equipment — what it is, how it works, where it is used, how you identify it", "cross_family": false } ] }, { "qid": "KOL-2026-10-4375-Q002", "text": "⁠Minimum number of Generator set requirements ?", "family": "Electrical - Generator & Alternator", "subtopic": "Emergency DG", "tid": "KOL-2026-10-4375", "tray": "new", "candidates": [ { "answer_id": "LS-IMB-A-001", "score": 0.571641743183136, "sibling_score": 0.571641743183136, "answer_score": null, "sibling_qid": "MUM-2024-04-0168-Q022", "sibling_text": "one generator load is low", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Two paralleled generators sharing unequal load — cause and correction", "cross_family": false }, { "answer_id": "EDG-P01-001", "score": 0.5453550219535828, "sibling_score": 0.5453550219535828, "answer_score": null, "sibling_qid": "KOL-2025-04-2775-Q004", "sibling_text": "emergency generator requirement", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Emergency source of power — the SOLAS requirements", "cross_family": false }, { "answer_id": "LS-IMB-A-002", "score": 0.5322601199150085, "sibling_score": 0.5322601199150085, "answer_score": null, "sibling_qid": "KOL-2022-07-2574-Q004", "sibling_text": "two generators running parallel one generator rpm little less why", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "2. Governor speed droop, isochronous control and the load-control switch", "cross_family": false } ] }, { "qid": "KOL-2026-10-4375-Q003", "text": "⁠Governor droop ?", "family": "Automation & Controls", "subtopic": "Droop", "tid": "KOL-2026-10-4375", "tray": "review", "candidates": [ { "answer_id": "GOV-P03-002", "score": 0.7416650652885437, "sibling_score": 0.7416650652885437, "answer_score": 0.45138456821441647, "sibling_qid": "KOL-2024-06-1781-Q004", "sibling_text": "droop in governor", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Droop, isochronous operation and load sharing", "cross_family": false }, { "answer_id": "DROOP-001", "score": 0.7291939854621887, "sibling_score": 0.7291939854621887, "answer_score": 0.45889838635921476, "sibling_qid": "KOC-2021-05-2022-Q006", "sibling_text": "droop in governor explain", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Governor / speed droop — what, why, setting and formula", "cross_family": false }, { "answer_id": "DROOP-002", "score": 0.6492186188697815, "sibling_score": 0.6492186188697815, "answer_score": null, "sibling_qid": "KOL-2017-01-2102-Q004", "sibling_text": "governor droop drawing", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Speed-droop characteristic — the curve and what it shows", "cross_family": false } ] }, { "qid": "KOL-2026-10-4375-Q004", "text": "⁠Microcontroller ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Logic Gates / Circuits", "tid": "KOL-2026-10-4375", "tray": "review", "candidates": [ { "answer_id": "EPC-P02-08", "score": 0.7751572132110596, "sibling_score": 0.7751572132110596, "answer_score": 0.5660289764404297, "sibling_qid": "KOL-2025-08-2822-Q003", "sibling_text": "what is microcontroller", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a microcontroller — parts and applications?", "cross_family": false }, { "answer_id": "SCR-306-B-005", "score": 0.5897635817527771, "sibling_score": 0.5897635817527771, "answer_score": null, "sibling_qid": "KOL-2019-06-2297-Q001", "sibling_text": "thyrister functions in avr", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Thyristor / SCR in an AVR excitation circuit", "cross_family": false }, { "answer_id": "ALPHA-LUB-B-001", "score": 0.5798239707946777, "sibling_score": 0.5798239707946777, "answer_score": 0.4055873483419418, "sibling_qid": "KOL-2018-10-1421-Q004", "sibling_text": "input and output singal for mcu for alpha lubricator", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Alpha lubricator — control, HMI, sensors, inputs/outputs and feedback", "cross_family": true } ] }, { "qid": "KOL-2026-10-4376-Q001", "text": "What is meant by weather tight and water tight tell about integrity point of view?", "family": "SOLAS - Watertight & Closing Appliances", "subtopic": "Weather Tight", "tid": "KOL-2026-10-4376", "tray": "review", "candidates": [ { "answer_id": "WEATH-545-001", "score": 0.6555904746055603, "sibling_score": 0.6555904746055603, "answer_score": 0.4742486000061035, "sibling_qid": "KOL-2025-09-1047-Q008", "sibling_text": "weathertight meaning", "sibling_family": "SOLAS - Watertight & Closing Appliances", "via": "sibling", "answer_title": "What is weathertight, and how does it differ from watertight — meaning, application, location and testing?", "cross_family": false }, { "answer_id": "WTD-002", "score": 0.6305356025695801, "sibling_score": 0.6305356025695801, "answer_score": null, "sibling_qid": "MUM-2023-03-0093-Q009", "sibling_text": "water tight", "sibling_family": "SOLAS - Watertight & Closing Appliances", "via": "sibling", "answer_title": "Inspecting, maintaining and testing watertight doors and watertight integrity in survey", "cross_family": false }, { "answer_id": "WTD-004", "score": 0.44216697216033934, "sibling_score": null, "answer_score": 0.44216697216033934, "sibling_qid": "", "sibling_text": "watertight vs weathertight doors and pressure hose testing watertight solas ii 1 reg 2 resists water both directions under the design head intact damaged sustained pressure below the bulkhead freeboard deck weathertight load line icll water will not penetrate in any sea condition resists external sea and spray momentary not a standing head exposed decks and superstructures", "sibling_family": "", "via": "answer_title", "answer_title": "Watertight vs weathertight doors, and pressure/hose testing", "cross_family": false } ] }, { "qid": "KOL-2026-10-4376-Q002", "text": "What is freeboard deck?", "family": "Ship Construction", "subtopic": "", "tid": "KOL-2026-10-4376", "tray": "review", "candidates": [ { "answer_id": "LLC-P05-001", "score": 0.7227756977081299, "sibling_score": 0.7227756977081299, "answer_score": 0.5066314756870269, "sibling_qid": "KOL-2022-08-0667-Q006", "sibling_text": "define freeboard deck", "sibling_family": "", "via": "sibling", "answer_title": "Freeboard, deck line, Plimsoll mark, assignment and scantling draft", "cross_family": false }, { "answer_id": "LL-CONV-P06-001", "score": 0.6216592788696289, "sibling_score": 0.6216592788696289, "answer_score": null, "sibling_qid": "KOL-2023-10-0783-Q002", "sibling_text": "bulkhead deck freeboard deck difference", "sibling_family": "", "via": "sibling", "answer_title": "LLC-P06-01 - Ship categories and freeboard differences: Type A, Type B and practical ship cases", "cross_family": false }, { "answer_id": "TPC-FWA-010", "score": 0.46988075971603394, "sibling_score": null, "answer_score": 0.46988075971603394, "sibling_qid": "", "sibling_text": "define freeboard draught displacement and tpc freeboard load line sense measured vertically downwards amidships from the upper edge of the deck line to the upper edge of the related assigned load line it represents assigned reserve buoyancy under the load line convention draught waterline keel", "sibling_family": "", "via": "answer_title", "answer_title": "Define freeboard, draught, displacement and TPC", "cross_family": false } ] }, { "qid": "KOL-2026-10-4376-Q003", "text": "What all things we cannot burn in incinerator? What is the basic one?", "family": "Auxiliary Equipment", "subtopic": "Incinerator", "tid": "KOL-2026-10-4376", "tray": "review", "candidates": [ { "answer_id": "INCIN-002", "score": 0.7574201822280884, "sibling_score": 0.7574201822280884, "answer_score": 0.4619271278381348, "sibling_qid": "KOL-2017-07-0102-Q003", "sibling_text": "incinerator operations what to not burn", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "What you can and cannot burn under MARPOL", "cross_family": false }, { "answer_id": "INCIN-003", "score": 0.6650030016899109, "sibling_score": 0.6650030016899109, "answer_score": null, "sibling_qid": "KOL-2026-09-4307-Q003", "sibling_text": "incinerator requirements", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Which MARPOL annex and code; batch vs continuous-feed", "cross_family": false }, { "answer_id": "GARB-261-005", "score": 0.4681288510560989, "sibling_score": null, "answer_score": 0.4681288510560989, "sibling_qid": "", "sibling_text": "onboard segregation and incineration restrictions segregate at source into category receptacles colour coded labelled per the gmp mixing contaminates so the most stringent discharge rule then applies and usually blocks sea discharge incinerate only materials the maker s manual permits shipboard incinerators installed after 1 january 2000 are type approved and meet annex vi air pollution criteria", "sibling_family": "", "via": "answer_title", "answer_title": "Onboard segregation and incineration restrictions", "cross_family": false } ] }, { "qid": "KOL-2026-10-4377-Q001", "text": "100% capability of steering gear ?", "family": "Steering Gear & Hydraulics", "subtopic": "Steering Gear System", "tid": "KOL-2026-10-4377", "tray": "review", "candidates": [ { "answer_id": "SG-055-B-003", "score": 0.7608752846717834, "sibling_score": 0.7608752846717834, "answer_score": null, "sibling_qid": "KOL-2022-05-1686-Q004", "sibling_text": "100 working of steering gear", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Redundancy and the single-failure requirement (50% / 100%)", "cross_family": false }, { "answer_id": "SG-RAM-003", "score": 0.7138280272483826, "sibling_score": 0.7138280272483826, "answer_score": 0.46968965530395507, "sibling_qid": "KOL-2021-05-1903-Q004", "sibling_text": "4 ram steering gear working what is 100 capacity not redundancy", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Four-ram steering gear — bridge-to-rudder working, 100% capacity not redundancy, and hydraulic locking", "cross_family": false }, { "answer_id": "STG-055-C-001", "score": 0.6878748536109924, "sibling_score": 0.6878748536109924, "answer_score": null, "sibling_qid": "KOL-2025-12-2029-Q003", "sibling_text": "safematic steering gear 100 redundancy capacity regulation", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Safematic steering gear, redundancy and the single-failure criterion", "cross_family": false } ] }, { "qid": "KOL-2026-10-4377-Q002", "text": "cascade control ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "PID Controller", "tid": "KOL-2026-10-4377", "tray": "review", "candidates": [ { "answer_id": "PID-CTRL-005", "score": 0.7292758822441101, "sibling_score": 0.7292758822441101, "answer_score": null, "sibling_qid": "CHE-2026-02-0336-Q007", "sibling_text": "cascade control", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Open-loop, closed-loop, cascade and other control types onboard", "cross_family": false }, { "answer_id": "CTRL-001", "score": 0.6997119188308716, "sibling_score": 0.6997119188308716, "answer_score": 0.4459901243448257, "sibling_qid": "KOL-2020-11-2409-Q003", "sibling_text": "cascade control working", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Cascade control — how it works", "cross_family": true }, { "answer_id": "CTRL-TL-008", "score": 0.6794167757034302, "sibling_score": 0.6794167757034302, "answer_score": 0.4429059565067291, "sibling_qid": "KOL-2020-01-1514-Q005", "sibling_text": "cascade control", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Cascade control, the slave controller, and split-range control", "cross_family": true } ] }, { "qid": "KOL-2026-10-4377-Q003", "text": "proportional band ?", "family": "Automation & Controls", "subtopic": "PID / Two-Step / Ratio Control", "tid": "KOL-2026-10-4377", "tray": "review", "candidates": [ { "answer_id": "PID-CTRL-003", "score": 0.7942255139350891, "sibling_score": 0.7942255139350891, "answer_score": 0.5048651784658432, "sibling_qid": "KOL-2021-07-2458-Q004", "sibling_text": "proportional band", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Proportional gain and proportional band", "cross_family": false }, { "answer_id": "CTRL-003", "score": 0.35602675974369047, "sibling_score": null, "answer_score": 0.35602675974369047, "sibling_qid": "", "sibling_text": "split range control working and use one controller one controlled variable two or more final control elements controller output range is split into bands each element works over its own band", "sibling_family": "", "via": "answer_title", "answer_title": "Split-range control — working and use", "cross_family": false }, { "answer_id": "FOAM-SYS-P04-001", "score": 0.33699160516262056, "sibling_score": null, "answer_score": 0.33699160516262056, "sibling_qid": "", "sibling_text": "4 expansion ratios low medium high definition expansion ratio volume of finished foam volume of foam solution general bands engineering convention representative low up to 20 1 medium 20 1 to 200 1 high 200 1 to 1000 1", "sibling_family": "", "via": "answer_title", "answer_title": "4. Expansion ratios — low, medium, high", "cross_family": false } ] }, { "qid": "KOL-2026-10-4377-Q004", "text": "Main bearing clearance in auxiliary engine ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Main Bearing", "tid": "KOL-2026-10-4377", "tray": "review", "candidates": [ { "answer_id": "MN-BRG-C-003", "score": 0.7486411929130554, "sibling_score": 0.7486411929130554, "answer_score": 0.5150758385658264, "sibling_qid": "MUM-2026-03-2642-Q008", "sibling_text": "main bearing clearance in main engine", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main bearing clearance and wear-down: measuring and interpreting", "cross_family": false }, { "answer_id": "THR-BRG-A-001", "score": 0.7302460074424744, "sibling_score": 0.7302460074424744, "answer_score": null, "sibling_qid": "KOL-2021-08-3446-Q004", "sibling_text": "how to take thrust bearing clearance in main engine is thrust bearing also present in aux engine aux engine thrust bearing position and function done with orals", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you check, measure, limit and adjust main-engine thrust bearing clearance?", "cross_family": false }, { "answer_id": "AE-CSB-346-003", "score": 0.7268112301826477, "sibling_score": 0.7268112301826477, "answer_score": 0.536604368686676, "sibling_qid": "MUM-2026-09-3946-Q003", "sibling_text": "ae main bearing clearances", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Checking / measuring auxiliary-engine thrust-bearing clearance (end float)", "cross_family": false } ] }, { "qid": "KOL-2026-10-4377-Q005", "text": "COP of refrigeration ?", "family": "Refrigeration & AC", "subtopic": "Refer Cycle", "tid": "KOL-2026-10-4377", "tray": "review", "candidates": [ { "answer_id": "REF-CYC-007", "score": 0.7232312560081482, "sibling_score": 0.7232312560081482, "answer_score": 0.5863553017377853, "sibling_qid": "KOL-2018-06-1383-Q003", "sibling_text": "refrigeration cop", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "7. COP and improving refrigeration efficiency", "cross_family": false }, { "answer_id": "TON-REF-003", "score": 0.6786574721336365, "sibling_score": 0.6786574721336365, "answer_score": 0.5516185790300369, "sibling_qid": "MUM-2026-04-1007-Q016", "sibling_text": "coefficient of refrigeration why not ton of refrigeration", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Why is refrigeration capacity expressed as ton of refrigeration instead of only coefficient of performance?", "cross_family": false }, { "answer_id": "CAP-CTRL-001", "score": 0.6592442989349365, "sibling_score": 0.6592442989349365, "answer_score": null, "sibling_qid": "MUM-2026-05-3144-Q007", "sibling_text": "capacity control refrigeration", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "CG-001 · Capacity control in an AC / refrigeration compressor — why and how", "cross_family": false } ] }, { "qid": "KOL-2026-10-4377-Q006", "text": "How crosshead lubrication ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Crosshead Bearing", "tid": "KOL-2026-10-4377", "tray": "review", "candidates": [ { "answer_id": "XHD-BRG-B-005", "score": 0.74434894323349, "sibling_score": 0.74434894323349, "answer_score": 0.547293397784233, "sibling_qid": "KOL-2023-01-1927-Q002", "sibling_text": "crosshead lubrication", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How crosshead lubrication is achieved — and why it is the hard one", "cross_family": false }, { "answer_id": "CXH-BRG-FINAL-1-004", "score": 0.7345927357673645, "sibling_score": 0.7345927357673645, "answer_score": 0.5947353720664977, "sibling_qid": "MUM-2026-05-3139-Q003", "sibling_text": "how lube oil supply to crosshead", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead lubrication: how oil reaches the crosshead", "cross_family": false }, { "answer_id": "XHD-BRG-C-004", "score": 0.732860267162323, "sibling_score": 0.732860267162323, "answer_score": null, "sibling_qid": "KOL-2026-03-2045-Q003", "sibling_text": "crosshead bearing lubrication how guide shoes are getting lubricated", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "D. Crosshead and guide-shoe lubrication: oil path, the no-load-reversal film problem, MAN vs Sulzer", "cross_family": false } ] }, { "qid": "KOL-2026-10-4377-Q007", "text": "Indicator card pmax and pcomp normal but exhaust temperature above normal ?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Indicator Card / Power Card", "tid": "KOL-2026-10-4377", "tray": "review", "candidates": [ { "answer_id": "EXH-T-HI-005", "score": 0.8121337294578552, "sibling_score": 0.8121337294578552, "answer_score": 0.6211451202630996, "sibling_qid": "KOL-2023-02-4019-Q003", "sibling_text": "in a draw card taken pmax and pcomp are good but exhaust line is high reasons", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Exhaust line high with Pmax and Pcomp normal — probable causes", "cross_family": false }, { "answer_id": "IND-CARD-B-005", "score": 0.7895950675010681, "sibling_score": 0.7895950675010681, "answer_score": null, "sibling_qid": "KOL-2026-04-2056-Q002", "sibling_text": "all units pcomp pmax are okay one units exhaust line is higher in draw card reasons", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Interpreting Pmax, Pcomp and compression / expansion-line abnormalities", "cross_family": false }, { "answer_id": "IND-CARD-006", "score": 0.762049674987793, "sibling_score": 0.762049674987793, "answer_score": 0.5736219316720962, "sibling_qid": "MUM-2024-11-0966-Q006", "sibling_text": "n what happened to exhaust temperature n pcomp", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Interpreting Pmax, Pcomp and exhaust-temperature changes for timing and combustion", "cross_family": false } ] }, { "qid": "KOL-2026-10-4377-Q008", "text": "piston centring ? How to adjust clearance forward and aft ?", "family": "2-Stroke - Components (Other)", "subtopic": "Piston (Crown/Skirt/Inspection)", "tid": "KOL-2026-10-4377", "tray": "review", "candidates": [ { "answer_id": "PRING-CLR-A-002", "score": 0.7110657095909119, "sibling_score": 0.7110657095909119, "answer_score": null, "sibling_qid": "MUM-2025-08-2354-Q001", "sibling_text": "piston centring method and how to take clearance", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston-ring clearances and calibration — butt, axial, radial, wear limits", "cross_family": false }, { "answer_id": "PIST-CSI-B-002", "score": 0.705538809299469, "sibling_score": 0.705538809299469, "answer_score": 0.5535795778036118, "sibling_qid": "CHE-2026-03-0488-Q004", "sibling_text": "how to do piston centring where to add the shims", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Checking and correcting piston alignment / centering in the liner", "cross_family": false }, { "answer_id": "PST-CSI-BF-010", "score": 0.7012224793434143, "sibling_score": 0.7012224793434143, "answer_score": 0.5553906112909317, "sibling_qid": "CHE-2026-08-0654-Q008", "sibling_text": "how to do piston centring", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Checking piston alignment / centring in the liner, and correcting eccentricity", "cross_family": false } ] }, { "qid": "KOL-2026-10-4377-Q009", "text": "Influence number ?", "family": "Drydock & Underwater Surveys", "subtopic": "Shaft Alignment", "tid": "KOL-2026-10-4377", "tray": "review", "candidates": [ { "answer_id": "DUS-P5-04", "score": 0.7718651294708252, "sibling_score": 0.7718651294708252, "answer_score": null, "sibling_qid": "MUM-2026-05-3268-Q014", "sibling_text": "influence number", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Intermediate shaft — overhaul, oil supply to the bearing, and the influence number", "cross_family": false }, { "answer_id": "SHAFT-ALN-002", "score": 0.7717100381851196, "sibling_score": 0.7717100381851196, "answer_score": null, "sibling_qid": "KOC-2025-10-1947-Q003", "sibling_text": "influence number", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Fair-curve alignment, influence numbers and propeller overhang", "cross_family": false }, { "answer_id": "KGF-A-002", "score": 0.30475190579891204, "sibling_score": null, "answer_score": 0.30475190579891204, "sibling_qid": "", "sibling_text": "frame numbering spacing identification", "sibling_family": "", "via": "answer_title", "answer_title": "Frame numbering, spacing & identification", "cross_family": false } ] }, { "qid": "KOL-2026-10-4377-Q010", "text": "Fair curve alignment ?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft Deflection", "tid": "KOL-2026-10-4377", "tray": "review", "candidates": [ { "answer_id": "SHAFT-ALN-002", "score": 0.8433351516723633, "sibling_score": 0.8433351516723633, "answer_score": 0.46051669418811797, "sibling_qid": "MUM-2026-07-3799-Q002", "sibling_text": "fair curve alignment", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Fair-curve alignment, influence numbers and propeller overhang", "cross_family": false }, { "answer_id": "CRK-DEFL-005", "score": 0.8431611061096191, "sibling_score": 0.8431611061096191, "answer_score": 0.36363901793956754, "sibling_qid": "CHE-2025-08-0419-Q003", "sibling_text": "fair curve alignment", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Plotting and interpreting the deflection curve", "cross_family": false }, { "answer_id": "SHAFT-ALN-001", "score": 0.39627764523029324, "sibling_score": null, "answer_score": 0.39627764523029324, "sibling_qid": "", "sibling_text": "shaft alignment methods and procedure aim a continuous fair shaft centreline through every bearing acceptable bearing reactions slope and bending moment no negative or overloaded bearing reference line methods taut piano wire correct for wire sag optical telescope or laser laser optical avoid the sag error", "sibling_family": "", "via": "answer_title", "answer_title": "Shaft alignment — methods and procedure", "cross_family": false } ] }, { "qid": "KOL-2026-10-4377-Q011", "text": "Air compressor intermediate stage pressure ?", "family": "Air Compressor", "subtopic": "Air Compressor Stages / Safeties", "tid": "KOL-2026-10-4377", "tray": "review", "candidates": [ { "answer_id": "AC-STAGE-002", "score": 0.8569266200065613, "sibling_score": 0.8569266200065613, "answer_score": 0.5922568410634994, "sibling_qid": "KOL-2022-08-1705-Q005", "sibling_text": "intermediate pressure of multi stage air compressor", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Intermediate pressure / pressure ratio for minimum work", "cross_family": false }, { "answer_id": "AC-STAGE-001", "score": 0.6868680715560913, "sibling_score": 0.6868680715560913, "answer_score": null, "sibling_qid": "KOL-2017-12-1333-Q003", "sibling_text": "why compressor works in stages relation between each stages", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Why multistage compression — advantages over single-stage", "cross_family": false }, { "answer_id": "ACRV-001", "score": 0.6787146925926208, "sibling_score": 0.6787146925926208, "answer_score": null, "sibling_qid": "CHE-2026-04-0257-Q008", "sibling_text": "two stage air compressor first stage pressure relief valve lift what reason", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "First-stage relief valve lifting or leaking — reasons and checks", "cross_family": false } ] }, { "qid": "KOL-2026-10-4378-Q001", "text": "Miller cycle in 4stroke and 2 stroke engine ?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Miller / Otto / Diesel Cycle", "tid": "KOL-2026-10-4378", "tray": "review", "candidates": [ { "answer_id": "CPP-TCV-03", "score": 0.7429311871528625, "sibling_score": 0.7429311871528625, "answer_score": 0.5423376023769378, "sibling_qid": "MUM-2023-08-1055-Q007", "sibling_text": "miller cycle and why not in 2 stroke", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Applying Miller timing to 4-stroke and 2-stroke engines", "cross_family": false }, { "answer_id": "CPP-TCV-04", "score": 0.7172748446464539, "sibling_score": 0.7172748446464539, "answer_score": null, "sibling_qid": "KOL-2025-07-1819-Q010", "sibling_text": "miller cycle 2 stage t c arrangement", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Miller cycle for NOx reduction and power recovery", "cross_family": false }, { "answer_id": "CPP-TCV-02", "score": 0.6901934146881104, "sibling_score": 0.6901934146881104, "answer_score": 0.5581857919692993, "sibling_qid": "KOL-2024-05-1778-Q003", "sibling_text": "2 miller cycle", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Miller cycle — principle and PV effect", "cross_family": false } ] }, { "qid": "KOL-2026-10-4378-Q002", "text": "Thrust bearing working principle? I told procedure but he wants to know only working principle", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Crankshaft / Crankpin / Bearings", "tid": "KOL-2026-10-4378", "tray": "review", "candidates": [ { "answer_id": "THRUST-BRG-B-003", "score": 0.7437365055084229, "sibling_score": 0.7437365055084229, "answer_score": 0.6201888889074325, "sibling_qid": "MUM-2026-05-3308-Q006", "sibling_text": "principle and requirement of thrust bearing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Michell / tilting-pad / collar thrust bearing — working principle", "cross_family": true }, { "answer_id": "AE-CSB-346-001", "score": 0.7225314378738403, "sibling_score": 0.7225314378738403, "answer_score": 0.5184504628181458, "sibling_qid": "KOL-2023-08-3632-Q001", "sibling_text": "ae thrust bearing", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Thrust bearing in an auxiliary / generator engine — purpose and location", "cross_family": false }, { "answer_id": "THRUST-PC-005", "score": 0.6981799602508545, "sibling_score": 0.6981799602508545, "answer_score": null, "sibling_qid": "KOL-2017-04-3050-Q002", "sibling_text": "how thrust bearing is lubricated its construction running hot yo action", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "One pad overheating — reasons and actions", "cross_family": true } ] }, { "qid": "KOL-2026-10-4378-Q003", "text": "PID controller in 4 stroke engine where used? I told governor.. ", "family": "Electrical - Electronics & Power Conversion", "subtopic": "PID Controller", "tid": "KOL-2026-10-4378", "tray": "review", "candidates": [ { "answer_id": "PID-CTRL-001", "score": 0.8202157616615295, "sibling_score": 0.8202157616615295, "answer_score": null, "sibling_qid": "KOL-2026-09-4304-Q005", "sibling_text": "pid controller in governor", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What a PID controller is and how it works", "cross_family": false }, { "answer_id": "GOV-P02-005", "score": 0.7396748661994934, "sibling_score": 0.7396748661994934, "answer_score": null, "sibling_qid": "KOL-2025-08-2847-Q018", "sibling_text": "pid in electronic governor", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "PID control, loop stability & detuning", "cross_family": true }, { "answer_id": "GOV-P02-001", "score": 0.5755202084779739, "sibling_score": null, "answer_score": 0.5755202084779739, "sibling_qid": "", "sibling_text": "electronic governor draw block diagram working closed loop sense speed compare to setpoint pid limiters actuator fuel rack fiva feedback speed sensing magnetic pickups on the flywheel ring gear camshaft pulse frequency proportional to rpm usually dual pickups for redundancy", "sibling_family": "", "via": "answer_title", "answer_title": "Electronic governor — draw, block diagram & working", "cross_family": false } ] }, { "qid": "KOL-2026-10-4378-Q004", "text": "What is P,I,D and what it does what is AVR?", "family": "Electrical - Generator & Alternator", "subtopic": "AVR / Excitation", "tid": "KOL-2026-10-4378", "tray": "new", "candidates": [ { "answer_id": "AVR-EXC-B-001", "score": 0.5431671142578125, "sibling_score": 0.5431671142578125, "answer_score": 0.34586182385683056, "sibling_qid": "KOL-2026-01-2948-Q004", "sibling_text": "what is avr avr working", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Explain the AVR working principle and control-loop operation.", "cross_family": false }, { "answer_id": "AVR-EXC-C-001", "score": 0.5226826071739197, "sibling_score": 0.5226826071739197, "answer_score": null, "sibling_qid": "KOC-2024-05-1359-Q003", "sibling_text": "types of avr explain how avr works any one", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Types of AVR / excitation and how one is selected", "cross_family": false }, { "answer_id": "AVR-EXC-A-001", "score": 0.521102786064148, "sibling_score": 0.521102786064148, "answer_score": 0.36663508117198945, "sibling_qid": "KOL-2018-09-2224-Q004", "sibling_text": "function of avr", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "What is the purpose and function of the AVR?", "cross_family": false } ] }, { "qid": "KOL-2026-10-4378-Q005", "text": "Types of Brakes used in mooring winches? I told band brake and dynamic friction brakes which are water cooled, not accepted", "family": "Electrical - Motors & Starters", "subtopic": "Windlass / Crane Motor", "tid": "KOL-2026-10-4378", "tray": "review", "candidates": [ { "answer_id": "WIND-WNCH-006", "score": 0.7314935922622681, "sibling_score": 0.7314935922622681, "answer_score": 0.5543377637863159, "sibling_qid": "KOL-2025-04-3771-Q003", "sibling_text": "windlass brakes type", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Brake types, adjustment and slipping / damaged brake", "cross_family": true }, { "answer_id": "WCM-P02-003", "score": 0.7010114192962646, "sibling_score": 0.7010114192962646, "answer_score": null, "sibling_qid": "KOC-2026-08-2163-Q017", "sibling_text": "types of hydraulic mooring winches", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Windlass / winch motor: type, construction and speed control", "cross_family": false }, { "answer_id": "WBRT-001", "score": 0.6843034029006958, "sibling_score": 0.6843034029006958, "answer_score": null, "sibling_qid": "CHE-2024-06-0397-Q006", "sibling_text": "type of break used in winches", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Carrying out a mooring-winch brake rendering test", "cross_family": true } ] }, { "qid": "KOL-2026-10-4378-Q006", "text": "AE Main bearing clearance ?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "", "tid": "KOL-2026-10-4378", "tray": "review", "candidates": [ { "answer_id": "AE-CSB-346-003", "score": 0.8175323009490967, "sibling_score": 0.8175323009490967, "answer_score": null, "sibling_qid": "CHE-2026-05-0615-Q004", "sibling_text": "main bearing clearance of ae", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Checking / measuring auxiliary-engine thrust-bearing clearance (end float)", "cross_family": false }, { "answer_id": "AE-MB-004", "score": 0.7360520362854004, "sibling_score": 0.7360520362854004, "answer_score": 0.5335680782794953, "sibling_qid": "KOL-2017-04-1289-Q007", "sibling_text": "a e main bearing clearance and how to take out bearing", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Checking AE main-bearing clearance without opening the bearing", "cross_family": false }, { "answer_id": "AE-CRP-007", "score": 0.730981707572937, "sibling_score": 0.730981707572937, "answer_score": null, "sibling_qid": "KOC-2025-08-1048-Q013", "sibling_text": "ae big end bearing clearance measurement procedure", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE big-end / bottom-end bearing — inspection, bedding, nip and crush", "cross_family": false } ] }, { "qid": "KOL-2026-10-4378-Q007", "text": "AE Main bearing overhaul ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Main Bearing", "tid": "KOL-2026-10-4378", "tray": "review", "candidates": [ { "answer_id": "MAIN-BRG-B-001", "score": 0.7754669189453125, "sibling_score": 0.7754669189453125, "answer_score": 0.5211299270391464, "sibling_qid": "KOC-2022-09-1793-Q002", "sibling_text": "me main bearing overhaul", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you open up / remove / overhaul a main-engine main bearing?", "cross_family": false }, { "answer_id": "AE-MB-001", "score": 0.771655797958374, "sibling_score": 0.771655797958374, "answer_score": null, "sibling_qid": "MUM-2026-09-3957-Q002", "sibling_text": "ae main bearing removal", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Removing and renewing an auxiliary-engine main bearing", "cross_family": false }, { "answer_id": "BEB-A-001", "score": 0.5295076668262482, "sibling_score": null, "answer_score": 0.5295076668262482, "sibling_qid": "", "sibling_text": "removing overhauling inspecting and refitting the bottom end bearing", "sibling_family": "", "via": "answer_title", "answer_title": "Removing, overhauling, inspecting and refitting the bottom end bearing", "cross_family": false } ] }, { "qid": "KOL-2026-10-4378-Q008", "text": "How to remove top side of main bearing shell which is top open model , he asked me whether we need to remove Side bolts - I said not required. And jack the hydraulic jacks to bolts and removing procedure - he said ok", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE MAIN BEARING", "tid": "KOL-2026-10-4378", "tray": "review", "candidates": [ { "answer_id": "AE-MB-003", "score": 0.7980827689170837, "sibling_score": 0.7980827689170837, "answer_score": 0.7084890574216842, "sibling_qid": "MUM-2024-01-1073-Q008", "sibling_text": "ae main bearing removal procedure how to remove top shell", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Removing the top shell and the main-bearing locking arrangement", "cross_family": false }, { "answer_id": "AE-MB-002", "score": 0.7407204508781433, "sibling_score": 0.7407204508781433, "answer_score": 0.5970363765954971, "sibling_qid": "KOL-2021-07-3418-Q001", "sibling_text": "ae main bearing bottom half removal procedure", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Removing the lower shell / bottom half of an AE main bearing", "cross_family": false }, { "answer_id": "AE-MB-001", "score": 0.722564160823822, "sibling_score": 0.722564160823822, "answer_score": null, "sibling_qid": "CHE-2026-04-0505-Q005", "sibling_text": "ae main bearing removal procedure", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Removing and renewing an auxiliary-engine main bearing", "cross_family": false } ] }, { "qid": "KOL-2026-10-4378-Q009", "text": "Working principle of O2 analyser in Tanker? i said working method he wants only principle..", "family": "Cargo Ops - Tankers", "subtopic": "IG System", "tid": "KOL-2026-10-4378", "tray": "review", "candidates": [ { "answer_id": "COT-P02-08", "score": 0.7650896906852722, "sibling_score": 0.7650896906852722, "answer_score": 0.6164954364299774, "sibling_qid": "KOL-2022-09-0678-Q005", "sibling_text": "o2 analyser working principle", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Explain the working principle, sampling arrangement, calibration and failure response of the inert-gas oxygen analyser.", "cross_family": false }, { "answer_id": "IGAT-583-003", "score": 0.6627247929573059, "sibling_score": 0.6627247929573059, "answer_score": null, "sibling_qid": "KOC-2023-03-0154-Q014", "sibling_text": "ig alarms o2 content of ig in tank", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What are the set values for the IG system alarms and trips — IG line high, low and low-low pressure, oxygen content, PV valve and breaker pressures?", "cross_family": false }, { "answer_id": "IGAT-583-001", "score": 0.6566858887672424, "sibling_score": 0.6566858887672424, "answer_score": null, "sibling_qid": "KOL-2021-10-0570-Q001", "sibling_text": "ig alarms and trip o2 analyzer", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "State all the alarms, trips and safety cut-outs provided on a tanker inert gas (IG) system.", "cross_family": false } ] }, { "qid": "KOL-2026-10-4378-Q010", "text": "In two stage air compressor how much will be the Intermediate pressure? I told him P2=√(P1xP3) when P1 is 1 bar, P3 is 30bar, P2 approx. 5.5 to 6 bar", "family": "Air Compressor", "subtopic": "Air Compressor Stages / Safeties", "tid": "KOL-2026-10-4378", "tray": "review", "candidates": [ { "answer_id": "AC-STAGE-002", "score": 0.7312279343605042, "sibling_score": 0.7312279343605042, "answer_score": 0.5749266803264618, "sibling_qid": "KOL-2022-08-1705-Q005", "sibling_text": "intermediate pressure of multi stage air compressor", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Intermediate pressure / pressure ratio for minimum work", "cross_family": false }, { "answer_id": "AC-STAGE-001", "score": 0.6437957286834717, "sibling_score": 0.6437957286834717, "answer_score": null, "sibling_qid": "KOL-2025-11-1825-Q004", "sibling_text": "working principle or two stage air compressor", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Why multistage compression — advantages over single-stage", "cross_family": false }, { "answer_id": "AC-STAGE-004", "score": 0.5373695969581603, "sibling_score": null, "answer_score": 0.5373695969581603, "sibling_qid": "", "sibling_text": "p v diagram of a two stage air compressor two overlapping loops drawn at suction intermediate and final pressures 1st stage induct at suction pressure polytropic compression to intermediate pressure deliver", "sibling_family": "", "via": "answer_title", "answer_title": "P-V diagram of a two-stage air compressor", "cross_family": false } ] }, { "qid": "KOL-2026-10-4379-Q001", "text": "What is metacentre and effects in stability ?", "family": "Ship Construction & Stability", "subtopic": "Parametric / Synchronous Rolling", "tid": "KOL-2026-10-4379", "tray": "review", "candidates": [ { "answer_id": "GM-META-005", "score": 0.6887901425361633, "sibling_score": 0.6887901425361633, "answer_score": 0.5652038633823394, "sibling_qid": "MUM-2026-09-3870-Q003", "sibling_text": "metacentre", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "The metacentre and metacentric height", "cross_family": false }, { "answer_id": "STAB-D-001", "score": 0.6296268701553345, "sibling_score": 0.6296268701553345, "answer_score": 0.5804721534252166, "sibling_qid": "KOC-2025-07-0633-Q023", "sibling_text": "what is metacentre", "sibling_family": "", "via": "sibling", "answer_title": "General Ship Stability - How I Open Any Stability Question", "cross_family": false }, { "answer_id": "STAB-SD-A-001", "score": 0.6124231815338135, "sibling_score": 0.6124231815338135, "answer_score": null, "sibling_qid": "KOL-2025-09-1080-Q009", "sibling_text": "intact stability requirements with values metacentric height righting lever etc", "sibling_family": "", "via": "sibling", "answer_title": "Intact stability and the 2008 IS Code criteria", "cross_family": false } ] }, { "qid": "KOL-2026-10-4379-Q002", "text": "London convention for dumping and your vessel will come which annex ?", "family": "Other Conventions", "subtopic": "EEZ / PSSA / Special Area", "tid": "KOL-2026-10-4379", "tray": "new", "candidates": [ { "answer_id": "MARPOL-OV-003", "score": 0.6144348382949829, "sibling_score": 0.6144348382949829, "answer_score": null, "sibling_qid": "MUM-2026-09-3916-Q003", "sibling_text": "marpol annexes all", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "General overview of MARPOL and all annexes", "cross_family": true }, { "answer_id": "BWMS-A-001", "score": 0.6123196482658386, "sibling_score": 0.6123196482658386, "answer_score": null, "sibling_qid": "KOL-2016-08-0007-Q001", "sibling_text": "ballast water managment accordance with annex 1", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "The BWM Convention: what it is and why it is required", "cross_family": false }, { "answer_id": "IMODCS-004", "score": 0.6105670928955078, "sibling_score": 0.6105670928955078, "answer_score": null, "sibling_qid": "KOL-2025-09-1047-Q004", "sibling_text": "annex 6 marpol latest convention imo dcs", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is the latest amendment to MARPOL Annex VI affecting the IMO DCS?", "cross_family": true } ] }, { "qid": "KOL-2026-10-4379-Q003", "text": "DCP fire extinguisher ?", "family": "SOLAS - Fire Safety", "subtopic": "DCP / Dry Powder", "tid": "KOL-2026-10-4379", "tray": "review", "candidates": [ { "answer_id": "DCP-B-003", "score": 0.7831641435623169, "sibling_score": 0.7831641435623169, "answer_score": 0.5845108807086944, "sibling_qid": "KOL-2018-12-0248-Q003", "sibling_text": "dcp fire extinguisher overhaul", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Portable DCP extinguisher — overhaul, survey, refilling and pressure-test precautions", "cross_family": false }, { "answer_id": "DCP-B-002", "score": 0.7822325229644775, "sibling_score": 0.7822325229644775, "answer_score": 0.5644229292869568, "sibling_qid": "KOC-2022-09-0101-Q002", "sibling_text": "dcp portable fire extinguishers", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Portable DCP extinguisher — construction, working, safeties, application and empty indication", "cross_family": false }, { "answer_id": "DCP-FIXED-A-001", "score": 0.7674304842948914, "sibling_score": 0.7674304842948914, "answer_score": null, "sibling_qid": "KOC-2023-07-0202-Q003", "sibling_text": "draw dcp fire extinguisher", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Draw and explain the fixed DCP/dry-powder deck fire-fighting system", "cross_family": false } ] }, { "qid": "KOL-2026-10-4379-Q004", "text": "solid floor ?", "family": "Ship Construction & Stability", "subtopic": "DEFINITION", "tid": "KOL-2026-10-4379", "tray": "review", "candidates": [ { "answer_id": "FLR-WFB-P01-002", "score": 0.7600411176681519, "sibling_score": 0.7600411176681519, "answer_score": 0.4786147177219391, "sibling_qid": "MUM-2026-03-0864-Q008", "sibling_text": "solid floor", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "The solid floor — what it is, where it is fitted, its components", "cross_family": true }, { "answer_id": "FLR-WFB-P01-003", "score": 0.4570288360118866, "sibling_score": null, "answer_score": 0.4570288360118866, "sibling_qid": "", "sibling_text": "solid floor compared with the bracket plain floor solid full continuous plate centre girder to margin bracket plain open brackets at each end transverse stiffeners struts open in the middle", "sibling_family": "", "via": "answer_title", "answer_title": "Solid floor compared with the bracket (plain) floor", "cross_family": false }, { "answer_id": "FLR-WFB-P01-001", "score": 0.41577906012535093, "sibling_score": null, "answer_score": 0.41577906012535093, "sibling_qid": "", "sibling_text": "floors what they are the types and where they are fitted transverse vertical plate member at a frame runs centre girder to margin plate supports the inner bottom tank top and stiffens the bottom transversely", "sibling_family": "", "via": "answer_title", "answer_title": "Floors — what they are, the types, and where they are fitted", "cross_family": false } ] }, { "qid": "KOL-2026-10-4379-Q005", "text": "MARPOL annex vi certificate and validity ?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "Marpol Annex Certificates", "tid": "KOL-2026-10-4379", "tray": "review", "candidates": [ { "answer_id": "AVICERT-003", "score": 0.7691695094108582, "sibling_score": 0.7691695094108582, "answer_score": 0.5573449730873108, "sibling_qid": "KOL-2025-11-1116-Q004", "sibling_text": "marpol annex 6 all certificate and validity", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What are the types of certificate under MARPOL Annex VI and what is the validity of each?", "cross_family": false }, { "answer_id": "AVICERT-001", "score": 0.7390885949134827, "sibling_score": 0.7390885949134827, "answer_score": 0.5440878897905349, "sibling_qid": "KOL-2023-04-0735-Q005", "sibling_text": "certificates associated with marpol annex vi", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What certificates and documents are required to be carried on board under MARPOL Annex VI?", "cross_family": false }, { "answer_id": "AVICERT-006", "score": 0.7026963829994202, "sibling_score": 0.7026963829994202, "answer_score": null, "sibling_qid": "KOL-2018-04-0169-Q004", "sibling_text": "certificates in marpol", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What certificates are carried on board under all the MARPOL annexes, Annex I to Annex VI?", "cross_family": false } ] }, { "qid": "KOL-2026-10-4380-Q001", "text": "Type of ship ? bulk carriers", "family": "Status & Introduction", "subtopic": "", "tid": "KOL-2026-10-4380", "tray": "review", "candidates": [ { "answer_id": "SOLAS12-BC-A-001", "score": 0.84408038854599, "sibling_score": 0.84408038854599, "answer_score": 0.5839602649211884, "sibling_qid": "MUM-2026-06-3382-Q001", "sibling_text": "type of ship sailed bulk carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "SOLAS definition and scope of a bulk carrier", "cross_family": false }, { "answer_id": "SOLAS-XII-BC-002", "score": 0.7574065923690796, "sibling_score": 0.7574065923690796, "answer_score": null, "sibling_qid": "KOC-2026-09-2208-Q005", "sibling_text": "bulk carrier as per solas", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Explain SOLAS Chapter XII — the additional safety measures for bulk carriers", "cross_family": true }, { "answer_id": "BC-IMSBC-002", "score": 0.745523989200592, "sibling_score": 0.745523989200592, "answer_score": 0.572045624256134, "sibling_qid": "MUM-2026-06-3384-Q002", "sibling_text": "offshore and bulk carrier", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "2. Bulk carrier construction and structural design", "cross_family": true } ] }, { "qid": "KOL-2026-10-4380-Q002", "text": "WIDAS ?", "family": "Cargo Ops - Bulk Carriers", "subtopic": "WIDAS / Smoke Detection", "tid": "KOL-2026-10-4380", "tray": "review", "candidates": [ { "answer_id": "WIDAS-SMK-001", "score": 0.776500403881073, "sibling_score": 0.776500403881073, "answer_score": 0.3271086901426315, "sibling_qid": "MUM-2025-08-0380-Q003", "sibling_text": "widas", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "WIDAS — water ingress detection and alarm system", "cross_family": false }, { "answer_id": "WIDAS-SMK-002", "score": 0.3825298562645912, "sibling_score": null, "answer_score": 0.3825298562645912, "sibling_qid": "", "sibling_text": "widas purpose and the three protected spaces", "sibling_family": "", "via": "answer_title", "answer_title": "WIDAS purpose and the three protected spaces", "cross_family": false }, { "answer_id": "WIDAS-SMK-004", "score": 0.36676880866289135, "sibling_score": null, "answer_score": 0.36676880866289135, "sibling_qid": "", "sibling_text": "testing maintenance and sensor replacement of widas", "sibling_family": "", "via": "answer_title", "answer_title": "Testing, maintenance and sensor replacement of WIDAS", "cross_family": false } ] }, { "qid": "KOL-2026-10-4380-Q004", "text": "Certificate carried by ship for trading ?", "family": "Cargo Ops - Tankers", "subtopic": "Chemical Tanker Code (BCH/IBC)", "tid": "KOL-2026-10-4380", "tray": "review", "candidates": [ { "answer_id": "CERT-LIST-P02-006", "score": 0.795135498046875, "sibling_score": 0.795135498046875, "answer_score": null, "sibling_qid": "KOL-2025-09-1038-Q008", "sibling_text": "certificate required for vessels to trade", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Statutory vs mandatory vs trading vs class vs non-statutory", "cross_family": true }, { "answer_id": "COT-P03-04", "score": 0.7365661263465881, "sibling_score": 0.7365661263465881, "answer_score": null, "sibling_qid": "KOL-2025-05-0944-Q005", "sibling_text": "tanker specific certificates", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Tanker-specific statutory certificates and documents — and what each demonstrates", "cross_family": false }, { "answer_id": "BCH-IBC-A-003", "score": 0.7346275448799133, "sibling_score": 0.7346275448799133, "answer_score": null, "sibling_qid": "KOC-2025-04-0586-Q002", "sibling_text": "certificates for annex 2 in your ship", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Certificate of Fitness — what a chemical tanker is allowed to carry", "cross_family": false } ] }, { "qid": "KOL-2026-10-4380-Q005", "text": "Construction of DB tank, solid floor ?", "family": "Ship Construction & Stability", "subtopic": "DEFINITION", "tid": "KOL-2026-10-4380", "tray": "review", "candidates": [ { "answer_id": "FLR-WFB-P01-001", "score": 0.7188538908958435, "sibling_score": 0.7188538908958435, "answer_score": 0.40026586055755614, "sibling_qid": "KOL-2025-03-0920-Q003", "sibling_text": "db tank construction what is floor", "sibling_family": "", "via": "sibling", "answer_title": "Floors — what they are, the types, and where they are fitted", "cross_family": false }, { "answer_id": "DBTB-A-002", "score": 0.6329564452171326, "sibling_score": 0.6329564452171326, "answer_score": null, "sibling_qid": "KOL-2017-01-0060-Q005", "sibling_text": "db tank construction details simple diagram margin plate solid plate floor longitudinals show in the diagram", "sibling_family": "", "via": "sibling", "answer_title": "Double-bottom tanks: purpose, advantages, disadvantages and stability effect", "cross_family": false }, { "answer_id": "PPS-230-006", "score": 0.5473821759223938, "sibling_score": 0.5473821759223938, "answer_score": null, "sibling_qid": "MUM-2026-08-3829-Q005", "sibling_text": "forepeak tank construction", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Fore-end / fore-peak structure: draw and describe", "cross_family": false } ] }, { "qid": "KOL-2026-10-4380-Q007", "text": "construction difference b/w container and bulk carriers ? Internal ques", "family": "Cargo Ops - Container Ships", "subtopic": "", "tid": "KOL-2026-10-4380", "tray": "review", "candidates": [ { "answer_id": "DBTB-A-002", "score": 0.7634378671646118, "sibling_score": 0.7634378671646118, "answer_score": null, "sibling_qid": "CHE-2025-10-0072-Q015", "sibling_text": "bulk carriers and container construction difference", "sibling_family": "", "via": "sibling", "answer_title": "Double-bottom tanks: purpose, advantages, disadvantages and stability effect", "cross_family": false }, { "answer_id": "CONT-FIRE-FINAL-1-004", "score": 0.7360002994537354, "sibling_score": 0.7360002994537354, "answer_score": 0.5791100025177002, "sibling_qid": "CHE-2026-05-0544-Q002", "sibling_text": "container ship construction difference", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Container ship construction differences and the torsion box", "cross_family": true }, { "answer_id": "SOLAS12-BC-F-002", "score": 0.6935113072395325, "sibling_score": 0.6935113072395325, "answer_score": null, "sibling_qid": "KOL-2024-10-0873-Q002", "sibling_text": "constructional difference between bulk carrier and oil tanker holds", "sibling_family": "", "via": "sibling", "answer_title": "Constructional features & structural peculiarity (incl. vs tanker holds)", "cross_family": false } ] }, { "qid": "KOL-2026-10-4380-Q008", "text": "Torsion box ? Internal ques", "family": "Ship Construction & Stability", "subtopic": "Double Bottom / Torsion Box", "tid": "KOL-2026-10-4380", "tray": "review", "candidates": [ { "answer_id": "DB-TORBOX-B-001", "score": 0.681986391544342, "sibling_score": 0.681986391544342, "answer_score": 0.41068008840084075, "sibling_qid": "KOL-2026-06-0001-Q002", "sibling_text": "what is torsion box", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Torsion box — purpose, location, and why container ships", "cross_family": false }, { "answer_id": "DB-TORBOX-B-003", "score": 0.6581926941871643, "sibling_score": 0.6581926941871643, "answer_score": 0.4461468279361725, "sibling_qid": "KOC-2026-08-2112-Q006", "sibling_text": "torsional box", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "What is a torsion box — definition and construction", "cross_family": false }, { "answer_id": "DBTB-A-004", "score": 0.6275312900543213, "sibling_score": 0.6275312900543213, "answer_score": 0.40881190598011014, "sibling_qid": "CHE-2025-08-0022-Q004", "sibling_text": "torsion box details", "sibling_family": "", "via": "sibling", "answer_title": "Torsion box: construction and arrangement in a container ship", "cross_family": false } ] }, { "qid": "KOL-2026-10-4381-Q001", "text": "How much voltage and frequency variation is allowed as per regulations ?", "family": "Electrical - Distribution & Panels", "subtopic": "", "tid": "KOL-2026-10-4381", "tray": "new", "candidates": [ { "answer_id": "AVR-EXC-H-002", "score": 0.5582659244537354, "sibling_score": 0.5582659244537354, "answer_score": null, "sibling_qid": "KOC-2021-09-1146-Q007", "sibling_text": "small voltage adjustments max 2 volts", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Voltage trimmer — adjustment and biasing", "cross_family": true }, { "answer_id": "VFD-INV-P02-002", "score": 0.5470815896987915, "sibling_score": 0.5470815896987915, "answer_score": null, "sibling_qid": "CHE-2025-08-0281-Q001", "sibling_text": "vfd why ans voltage and frequency varies cross when frequency changes does voltage change", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "How are voltage and frequency varied and controlled in a VFD?", "cross_family": true }, { "answer_id": "OC-UV-TRIP-001", "score": 0.5388045310974121, "sibling_score": 0.5388045310974121, "answer_score": null, "sibling_qid": "MUM-2022-12-1373-Q002", "sibling_text": "undervoltage frequency overload values and timings", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Under-voltage trip / no-volt coil — purpose, working, onboard test and calibration", "cross_family": true } ] }, { "qid": "KOL-2026-10-4381-Q002", "text": "Dynamic resistance in diode ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Zener / Diode / Rectifier", "tid": "KOL-2026-10-4381", "tray": "review", "candidates": [ { "answer_id": "EPC-P01-01", "score": 0.761576235294342, "sibling_score": 0.761576235294342, "answer_score": 0.4203960657119751, "sibling_qid": "MUM-2025-09-1640-Q002", "sibling_text": "static and dynamic resistance of diode", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a diode? Symbol, forward and reverse bias, and the characteristic curve", "cross_family": false }, { "answer_id": "DSC-004", "score": 0.5890381932258606, "sibling_score": 0.5890381932258606, "answer_score": null, "sibling_qid": "KOL-2021-09-2490-Q004", "sibling_text": "leakage current in pn diaode", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a PN junction, what are majority and minority carriers, and what is breakdown voltage?", "cross_family": false }, { "answer_id": "EPC-P02-04", "score": 0.5797441601753235, "sibling_score": 0.5797441601753235, "answer_score": null, "sibling_qid": "KOL-2021-03-2441-Q003", "sibling_text": "revese breakdown of diode", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is avalanche breakdown, how does it differ from zener breakdown, and in which diodes does each occur?", "cross_family": false } ] }, { "qid": "KOL-2026-10-4381-Q003", "text": "Overcurrent trip relay working ?", "family": "Electrical - Protection & Relays", "subtopic": "Overcurrent Relay", "tid": "KOL-2026-10-4381", "tray": "review", "candidates": [ { "answer_id": "OC-UV-TRIP-003", "score": 0.7607259154319763, "sibling_score": 0.7607259154319763, "answer_score": 0.5413236141204834, "sibling_qid": "KOC-2025-08-1563-Q014", "sibling_text": "overload trip working", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Overload trip — activation, time delay and protection effect", "cross_family": false }, { "answer_id": "OCR-185-001", "score": 0.7361787557601929, "sibling_score": 0.7361787557601929, "answer_score": 0.5533609122037887, "sibling_qid": "MUM-2026-04-2088-Q002", "sibling_text": "overcurrent relay trip", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Testing an overcurrent relay / overcurrent trip onboard", "cross_family": false }, { "answer_id": "OS-TRIP-001", "score": 0.7102055549621582, "sibling_score": 0.7102055549621582, "answer_score": null, "sibling_qid": "MUM-2025-08-1597-Q005", "sibling_text": "overspeed trip overcurrent relay trip", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "01. What is an overspeed trip / overspeed relay, and what is its purpose?", "cross_family": false } ] }, { "qid": "KOL-2026-10-4381-Q004", "text": "Problem with over discharging of lead acid battery ?", "family": "Electrical - Batteries & DC Systems", "subtopic": "Battery Charging / Trickle / Maintenance", "tid": "KOL-2026-10-4381", "tray": "review", "candidates": [ { "answer_id": "BDC-P03-04", "score": 0.78852379322052, "sibling_score": 0.78852379322052, "answer_score": 0.4936715364456177, "sibling_qid": "KOL-2021-07-3993-Q006", "sibling_text": "what is the problem if lead acid batteries too much discharged two more questions by ext can t remember now", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "Battery charging faults — gassing, overcharge, deep discharge, terminal corrosion", "cross_family": false }, { "answer_id": "BDC-P01-03", "score": 0.7227368354797363, "sibling_score": 0.7227368354797363, "answer_score": null, "sibling_qid": "KOL-2020-02-2367-Q003", "sibling_text": "alkaline battery terminals electrolyte specific gravity what will happen because of continuous discharging in lead acid battery", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "Nickel-cadmium (alkaline) battery — construction, working and cell data", "cross_family": false }, { "answer_id": "BDC-P03-02", "score": 0.7177172303199768, "sibling_score": 0.7177172303199768, "answer_score": null, "sibling_qid": "KOC-2024-07-1371-Q008", "sibling_text": "discharging formula in led acid battery", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "Lead-acid charging and discharging — reactions, plates and electrolyte", "cross_family": false } ] }, { "qid": "KOL-2026-10-4381-Q005", "text": "Why proportional controller cannot eliminate offset ?", "family": "Automation & Controls", "subtopic": "PID / Two-Step / Ratio Control", "tid": "KOL-2026-10-4381", "tray": "review", "candidates": [ { "answer_id": "CTRL-TL-003", "score": 0.7837742567062378, "sibling_score": 0.7837742567062378, "answer_score": 0.41949906051158903, "sibling_qid": "KOL-2025-10-2887-Q005", "sibling_text": "proportional control offset why", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Feedback, open/closed loop, offset, hysteresis, P-I-D action", "cross_family": false }, { "answer_id": "CTRL-001", "score": 0.7354632019996643, "sibling_score": 0.7354632019996643, "answer_score": null, "sibling_qid": "KOL-2024-02-2696-Q005", "sibling_text": "cascade control system why there is offset in proportional controller", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Cascade control — how it works", "cross_family": false }, { "answer_id": "AUC-CTL-01", "score": 0.5681231200695037, "sibling_score": null, "answer_score": 0.5681231200695037, "sibling_qid": "", "sibling_text": "choosing p pi or pid control p alone leaves an offset proportional to the load change steady state error is inherent to pure proportional action integral reset eliminates offset but slows response and can wind up on prolonged saturation", "sibling_family": "", "via": "answer_title", "answer_title": "Choosing P, PI or PID control", "cross_family": false } ] }, { "qid": "KOL-2026-10-4381-Q006", "text": "PI test ? Decider ques", "family": "Auxiliary Equipment", "subtopic": "Winch Brake Rendering Test", "tid": "KOL-2026-10-4381", "tray": "new", "candidates": [ { "answer_id": "PI-211-002", "score": 0.5845742225646973, "sibling_score": 0.5845742225646973, "answer_score": 0.3323560059070587, "sibling_qid": "MUM-2022-04-1328-Q004", "sibling_text": "pi test", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "How the PI test is carried out — equipment, procedure, leakage-current behaviour", "cross_family": true }, { "answer_id": "PI-211-001", "score": 0.5635450482368469, "sibling_score": 0.5635450482368469, "answer_score": null, "sibling_qid": "KOL-2023-05-2659-Q001", "sibling_text": "pi why checked", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What polarization index is, why we use it, and the value expected", "cross_family": true }, { "answer_id": "PI-211-004", "score": 0.5468145608901978, "sibling_score": 0.5468145608901978, "answer_score": 0.3081240475177765, "sibling_qid": "KOL-2023-06-2660-Q007", "sibling_text": "pi test and dar and test values", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "PI and DAR — how they relate, their purpose, and acceptable values", "cross_family": true } ] }, { "qid": "KOL-2026-10-4382-Q001", "text": "Type of ship? What kind LPG carriage was done on your ship? What are the uses of reliquification plant other than cargo return reliquification. Why don't we use LPG boil off in the boiler. Or as a fuel", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "KOL-2026-10-4382", "tray": "review", "candidates": [ { "answer_id": "LPG-LNG-009", "score": 0.7467091679573059, "sibling_score": 0.7467091679573059, "answer_score": 0.5850786209106446, "sibling_qid": "CHE-2026-04-0164-Q001", "sibling_text": "type of ship sailed lpg carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Gas-carrier fundamentals and ship-specific traps", "cross_family": false }, { "answer_id": "LPG-LNG-001", "score": 0.7034067511558533, "sibling_score": 0.7034067511558533, "answer_score": null, "sibling_qid": "MUM-2026-09-3961-Q001", "sibling_text": "how lpg ship differ from other ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "LPG vs LNG – properties, carriage and comparison", "cross_family": false }, { "answer_id": "BLEVE-BOG-004", "score": 0.6887710094451904, "sibling_score": 0.6887710094451904, "answer_score": null, "sibling_qid": "CHE-2026-02-0115-Q003", "sibling_text": "how to you maintain gas vapour from tank i explained about the lng carriers in my vessel but he was expecting a re liquefaction plant from lpg", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "How are LNG boil-off, tank pressure and cargo temperature controlled?", "cross_family": true } ] }, { "qid": "KOL-2026-10-4382-Q002", "text": "Ship certificates lists ? All statutory, MARPOL SOLAS STCW all discussed. Asked what else is there.", "family": "Surveys - Statutory", "subtopic": "Certificates List", "tid": "KOL-2026-10-4382", "tray": "review", "candidates": [ { "answer_id": "CERT-LIST-P02-001", "score": 0.855747401714325, "sibling_score": 0.855747401714325, "answer_score": null, "sibling_qid": "KOC-2024-05-0339-Q005", "sibling_text": "certificates other than solas and marpol", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "SOLAS certificates carried onboard", "cross_family": false }, { "answer_id": "CERT-LIST-P03-001", "score": 0.8229271769523621, "sibling_score": 0.8229271769523621, "answer_score": 0.6350272953510284, "sibling_qid": "MUM-2025-07-0353-Q003", "sibling_text": "all certificates under marpol", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "MARPOL, AFS & annex-specific certificates", "cross_family": false }, { "answer_id": "CERT-LIST-P01-001", "score": 0.808115541934967, "sibling_score": 0.808115541934967, "answer_score": 0.6050885498523711, "sibling_qid": "KOC-2025-02-0535-Q008", "sibling_text": "statutory certificates in ship i listed more than 10 as i could remember", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "List the statutory certificates carried onboard a ship.", "cross_family": false } ] }, { "qid": "KOL-2026-10-4382-Q003", "text": "CLC convention? ", "family": "Other Conventions", "subtopic": "CLC / Civil Liability", "tid": "KOL-2026-10-4382", "tray": "review", "candidates": [ { "answer_id": "CLC-CIV-A-001", "score": 0.7590142488479614, "sibling_score": 0.7590142488479614, "answer_score": 0.30272240936756134, "sibling_qid": "KOL-2026-01-1160-Q003", "sibling_text": "clc convention", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "CLC Convention — objective, scope and shipowner liability", "cross_family": false }, { "answer_id": "CLC-CIV-A-006", "score": 0.6536920666694641, "sibling_score": 0.6536920666694641, "answer_score": 0.29941815733909605, "sibling_qid": "MUM-2026-07-3793-Q009", "sibling_text": "clc and fund convention", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Difference between CLC, the Fund and the Supplementary Fund", "cross_family": false }, { "answer_id": "CLC-CIV-B-003", "score": 0.6254104375839233, "sibling_score": 0.6254104375839233, "answer_score": null, "sibling_qid": "MUM-2024-02-0161-Q001", "sibling_text": "clc convention llmc bunker convention", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "LLMC: purpose, scope and limitation of maritime claims", "cross_family": false } ] }, { "qid": "KOL-2026-10-4382-Q004", "text": "Differences in 1972 and 1969. What is SDR? What currency it is based on? What type of ships are exempted from CLC.", "family": "Other Conventions", "subtopic": "CLC / Civil Liability", "tid": "KOL-2026-10-4382", "tray": "new", "candidates": [ { "answer_id": "CLC-CIV-A-002", "score": 0.4884641170501709, "sibling_score": 0.4884641170501709, "answer_score": 0.4664877951145172, "sibling_qid": "KOL-2024-09-0863-Q005", "sibling_text": "clc 69 79 sdr", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "CLC liability limits, SDR values and amendments", "cross_family": false }, { "answer_id": "EEDI-A-003", "score": 0.4101066589355469, "sibling_score": 0.4101066589355469, "answer_score": null, "sibling_qid": "KOL-2026-03-1198-Q007", "sibling_text": "which ships are exempted from eedi", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Which ships EEDI applies to — scope, exemptions and amendments", "cross_family": true }, { "answer_id": "BWM-D1D2-P02-001", "score": 0.4092317819595337, "sibling_score": 0.4092317819595337, "answer_score": null, "sibling_qid": "KOC-2023-02-0147-Q001", "sibling_text": "bwts convention d1 and d2 standard for which ships when came into effect", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Regulation D-1 — ballast water exchange standard and the accepted methods", "cross_family": false } ] }, { "qid": "KOL-2026-10-4382-Q005", "text": "What are floors? How it is decided what kind of floor is required?", "family": "Turbocharger", "subtopic": "Turbocharger Construction & Surging", "tid": "KOL-2026-10-4382", "tray": "new", "candidates": [ { "answer_id": "FLR-WFB-P01-001", "score": 0.6021392345428467, "sibling_score": 0.6021392345428467, "answer_score": 0.4835465997457504, "sibling_qid": "KOC-2022-09-0091-Q007", "sibling_text": "type of floors", "sibling_family": "", "via": "sibling", "answer_title": "Floors — what they are, the types, and where they are fitted", "cross_family": false }, { "answer_id": "FLR-WFB-P01-002", "score": 0.5675400495529175, "sibling_score": 0.5675400495529175, "answer_score": 0.4149391785264015, "sibling_qid": "KOC-2021-07-0014-Q012", "sibling_text": "types of floor what s solid floor where it is what s t use", "sibling_family": "", "via": "sibling", "answer_title": "The solid floor — what it is, where it is fitted, its components", "cross_family": false }, { "answer_id": "FLR-WFB-P01-005", "score": 0.43808725774288176, "sibling_score": null, "answer_score": 0.43808725774288176, "sibling_qid": "", "sibling_text": "false floor where it is located declared interpretation engine room floor plates removable chequered durbar plates forming the working platforms laid on angle bearers above the tank top and bilges at each engine room level", "sibling_family": "", "via": "answer_title", "answer_title": "False floor — where it is located (declared interpretation)", "cross_family": false } ] }, { "qid": "KOL-2026-10-4382-Q006", "text": "Static and dynamic stability? What is plotted. What do the graphs ?", "family": "Ship Construction & Stability", "subtopic": "Static / Dynamic Stability/damage stability", "tid": "KOL-2026-10-4382", "tray": "review", "candidates": [ { "answer_id": "STAB-SD-C-001", "score": 0.6715925335884094, "sibling_score": 0.6715925335884094, "answer_score": 0.4899056851863861, "sibling_qid": "MUM-2026-08-3835-Q006", "sibling_text": "static stability dynamic stability", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Static stability vs dynamic stability — and how each is measured", "cross_family": false }, { "answer_id": "STAB-GZ-P01-001", "score": 0.6701892614364624, "sibling_score": 0.6701892614364624, "answer_score": 0.4766027003526688, "sibling_qid": "KOC-2022-04-0070-Q003", "sibling_text": "statical stability curve draw", "sibling_family": "", "via": "sibling", "answer_title": "Draw and explain the statical stability (GZ) curve", "cross_family": false }, { "answer_id": "GZKN-P02-001", "score": 0.661607563495636, "sibling_score": 0.661607563495636, "answer_score": null, "sibling_qid": "KOL-2019-04-0280-Q003", "sibling_text": "cross curves of stability and statical stability in detail", "sibling_family": "", "via": "sibling", "answer_title": "Cross curves of stability (KN curves) — draw, explain, and use to build the GZ curve", "cross_family": false } ] }, { "qid": "KOL-2026-10-4382-Q007", "text": "Explain. Similar type of curves. Explain KN curve. What is the formula for GZ through this. Simply say what is Bonjean curve?", "family": "Ship Construction & Stability", "subtopic": "", "tid": "KOL-2026-10-4382", "tray": "review", "candidates": [ { "answer_id": "STAB-GZ-P01-001", "score": 0.7115975022315979, "sibling_score": 0.7115975022315979, "answer_score": null, "sibling_qid": "CHE-2026-09-3935-Q005", "sibling_text": "gz curve full explanation", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Draw and explain the statical stability (GZ) curve", "cross_family": false }, { "answer_id": "GZKN-P02-001", "score": 0.6760608553886414, "sibling_score": 0.6760608553886414, "answer_score": 0.4218774288892746, "sibling_qid": "MUM-2026-07-3822-Q006", "sibling_text": "kn curve", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Cross curves of stability (KN curves) — draw, explain, and use to build the GZ curve", "cross_family": false }, { "answer_id": "STAB-GZ-P03-001", "score": 0.44094698429107665, "sibling_score": null, "answer_score": 0.44094698429107665, "sibling_qid": "", "sibling_text": "cross curves kn curves what they are their axes and how they give you gz kn is the righting arm from the keel k to the line of action of buoyancy n is the foot of that perpendicular pure hull geometry a function of hull form displacement and heel angle only independent of kg", "sibling_family": "", "via": "answer_title", "answer_title": "Cross curves / KN curves — what they are, their axes, and how they give you GZ", "cross_family": false } ] }, { "qid": "KOL-2026-10-4383-Q001", "text": "Froude number significance ?", "family": "Ship Construction & Naval Architecture", "subtopic": "", "tid": "KOL-2026-10-4383", "tray": "new", "candidates": [ { "answer_id": "RES-PROP-P01-001", "score": 0.6437077522277832, "sibling_score": 0.6437077522277832, "answer_score": 0.480420583486557, "sibling_qid": "KOL-2026-02-1181-Q002", "sibling_text": "froude number importance what is v here", "sibling_family": "", "via": "sibling", "answer_title": "Resistance fundamentals: Froude & Reynolds numbers, boundary layer, frictional resistance", "cross_family": false }, { "answer_id": "RES-PROP-P02-002", "score": 0.4761292636394501, "sibling_score": 0.4761292636394501, "answer_score": null, "sibling_qid": "KOL-2019-05-0286-Q002", "sibling_text": "admiralty coefficient explain different parameters involved in it significance", "sibling_family": "", "via": "sibling", "answer_title": "Admiralty coefficient — formula, significance and power estimation", "cross_family": false }, { "answer_id": "FLP-142-P02-005", "score": 0.47348707914352417, "sibling_score": 0.47348707914352417, "answer_score": null, "sibling_qid": "KOL-2022-11-0702-Q003", "sibling_text": "factor of sub division floodable lenght value of fos for cargo ship and passenger which is greater", "sibling_family": "", "via": "sibling", "answer_title": "Factor of subdivision — how it is fixed (length and criterion numeral)", "cross_family": false } ] }, { "qid": "KOL-2026-10-4383-Q002", "text": "How to correct unstable equilibrium ship ", "family": "Status & Introduction", "subtopic": "", "tid": "KOL-2026-10-4383", "tray": "review", "candidates": [ { "answer_id": "STAB-GZ-P01-001", "score": 0.6595863699913025, "sibling_score": 0.6595863699913025, "answer_score": 0.47343595027923585, "sibling_qid": "KOC-2022-05-0075-Q002", "sibling_text": "how ship comes back to equilibrium after heeled", "sibling_family": "", "via": "sibling", "answer_title": "Draw and explain the statical stability (GZ) curve", "cross_family": false }, { "answer_id": "LOLL-P02-002", "score": 0.6034064888954163, "sibling_score": 0.6034064888954163, "answer_score": null, "sibling_qid": "MUM-2025-05-0265-Q004", "sibling_text": "how to make the ship upright from loll", "sibling_family": "", "via": "sibling", "answer_title": "1. Correcting angle of loll — the ballasting sequence", "cross_family": false }, { "answer_id": "STAB-D-004", "score": 0.5961835384368896, "sibling_score": 0.5961835384368896, "answer_score": 0.5517128646373749, "sibling_qid": "KOL-2022-01-0598-Q005", "sibling_text": "how can you say that your ship is stable", "sibling_family": "", "via": "sibling", "answer_title": "Ship Stability Basics - Equilibrium States, Factors, and Motions", "cross_family": false } ] }, { "qid": "KOL-2026-10-4383-Q003", "text": "If freeboard height increase what happens with stability ?", "family": "SOLAS", "subtopic": "Stability Curves (GZ / KN)", "tid": "KOL-2026-10-4383", "tray": "review", "candidates": [ { "answer_id": "STAB-GZ-P04-004", "score": 0.6743072271347046, "sibling_score": 0.6743072271347046, "answer_score": 0.5630812466144561, "sibling_qid": "KOC-2023-03-0175-Q002", "sibling_text": "statical stability draw for more and less freeboard", "sibling_family": "", "via": "sibling", "answer_title": "Beam, freeboard, GM and the wall-sided curve", "cross_family": false }, { "answer_id": "LL-CONV-P06-001", "score": 0.6446928977966309, "sibling_score": 0.6446928977966309, "answer_score": null, "sibling_qid": "CHE-2025-08-0024-Q012", "sibling_text": "what happens when freeboard is less in bulk", "sibling_family": "", "via": "sibling", "answer_title": "LLC-P06-01 - Ship categories and freeboard differences: Type A, Type B and practical ship cases", "cross_family": false }, { "answer_id": "MARGIN-LINE-004", "score": 0.6345288157463074, "sibling_score": 0.6345288157463074, "answer_score": null, "sibling_qid": "KOC-2022-09-0099-Q010", "sibling_text": "intact stability damage stability criteria margine line distance from freeboard", "sibling_family": "", "via": "sibling", "answer_title": "Margin line in subdivision, floodable length and stability criteria", "cross_family": false } ] }, { "qid": "KOL-2026-10-4383-Q004", "text": "SCAW of propeller?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Performance Curve", "tid": "KOL-2026-10-4383", "tray": "new", "candidates": [ { "answer_id": "PERF-CRV-001", "score": 0.6061180233955383, "sibling_score": 0.6061180233955383, "answer_score": null, "sibling_qid": "CHE-2026-09-3920-Q006", "sibling_text": "propeller draw", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Propeller curve — what it is, use and margin", "cross_family": false }, { "answer_id": "SPR-STERN-004", "score": 0.602431058883667, "sibling_score": 0.602431058883667, "answer_score": 0.48275710344314576, "sibling_qid": "KOL-2018-01-0142-Q001", "sibling_text": "skewed of a propeller", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Propeller rake & skew", "cross_family": true }, { "answer_id": "RES-PROP-P03-003", "score": 0.47143948674201963, "sibling_score": null, "answer_score": 0.47143948674201963, "sibling_qid": "", "sibling_text": "3 propeller particulars and service symptoms pitch skew pbcf ballast slapping and astern vibration pitch the geometric advance per revolution with no slip measure with a pitch gauge pitchometer against the blade face at a defined radius commonly 0 7r or take it from the drawing pitch can vary radially so measure at several radii skew the blade tip swept back circumferentially from a radial referen", "sibling_family": "", "via": "answer_title", "answer_title": "3. Propeller particulars and service symptoms: pitch, skew, PBCF, ballast slapping and astern vibration", "cross_family": false } ] }, { "qid": "KOL-2026-10-4384-Q001", "text": "How to purge the AE fuel line after a major overhaul ?", "family": "Cargo Ops - Tankers", "subtopic": "IG System", "tid": "KOL-2026-10-4384", "tray": "new", "candidates": [ { "answer_id": "AEFP-471-008", "score": 0.5977333784103394, "sibling_score": 0.5977333784103394, "answer_score": 0.5345538973808288, "sibling_qid": "KOL-2023-11-3653-Q003", "sibling_text": "how to purge fuel pump to injector hp line in generator after overhaul did not accept pushing rack and blow thru", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "How do you purge the AE fuel-pump-to-injector HP pipe after an injector routine or overhaul?", "cross_family": true }, { "answer_id": "FLGLS-002", "score": 0.5861088037490845, "sibling_score": 0.5861088037490845, "answer_score": 0.47115075290203096, "sibling_qid": "KOL-2025-01-3741-Q001", "sibling_text": "how to purge high pressure fuel line step to be taken in detail", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Purging a HP fuel line / injector and confirming all air is removed", "cross_family": true }, { "answer_id": "AEFP-471-009", "score": 0.5619680285453796, "sibling_score": 0.5619680285453796, "answer_score": 0.5614912092685699, "sibling_qid": "KOL-2025-10-3861-Q003", "sibling_text": "aux engine fuel pump overhaul fuel pump hp pipe in aux engine purging answered", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "How is AE fuel-pump overhaul associated with fuel-pump and HP-pipe purging?", "cross_family": true } ] }, { "qid": "KOL-2026-10-4384-Q002", "text": "Fwd seal leaking plan of actions and what is the speciality of stern tube oil and cross , what oil was in yr last ship and the brand /", "family": "Drydock & Underwater Surveys", "subtopic": "Stern Tube / Tail Shaft", "tid": "KOL-2026-10-4384", "tray": "review", "candidates": [ { "answer_id": "STERN-TUBE-P04-001", "score": 0.7301476001739502, "sibling_score": 0.7301476001739502, "answer_score": 0.5006004393100738, "sibling_qid": "CHE-2026-02-0473-Q006", "sibling_text": "stern tube oil seal is leaking actions to take", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Stern tube or seal leakage at sea: diagnosis and 2/E actions", "cross_family": false }, { "answer_id": "STERN-P03-002", "score": 0.6441009044647217, "sibling_score": 0.6441009044647217, "answer_score": 0.5315248012542725, "sibling_qid": "KOL-2023-08-1749-Q002", "sibling_text": "stern tube sealing arrangement air and oil system latest water type how working", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Stern-tube seals: arrangement, air/lip seals, renewal/replacement and the vulcanized split-seal fitting method", "cross_family": false }, { "answer_id": "SGRS-328-003", "score": 0.46987098157405854, "sibling_score": null, "answer_score": 0.46987098157405854, "sibling_qid": "", "sibling_text": "what action will you take for minor and major ram seal leakage classify first weep vs streaming level falling alarm sluggish steering minor monitor log top up approved oil watch tank level and low level alarm plan renewal at a safe opportunity port alongside calm don t strip on passage for a weep", "sibling_family": "", "via": "answer_title", "answer_title": "What action will you take for minor and major ram seal leakage?", "cross_family": false } ] }, { "qid": "KOL-2026-10-4384-Q003", "text": "Centrifugal pump checks after overhaul ?", "family": "Pumps - Centrifugal & PD", "subtopic": "Centrifugal Pump", "tid": "KOL-2026-10-4384", "tray": "review", "candidates": [ { "answer_id": "PCD-P03-01", "score": 0.8219015002250671, "sibling_score": 0.8219015002250671, "answer_score": 0.5887408137321472, "sibling_qid": "MUM-2026-05-3078-Q006", "sibling_text": "overhaul of centrifugal pump checks on that", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Centrifugal pump overhaul — procedure, checks, clearances and survey evidence", "cross_family": false }, { "answer_id": "PCD-P01-05", "score": 0.8157644271850586, "sibling_score": 0.8157644271850586, "answer_score": 0.5352729201316834, "sibling_qid": "KOL-2022-12-3584-Q008", "sibling_text": "centrifugal pump overhauled performance check after overhaul", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Checking centrifugal pump performance — head, flow and the MCSW check with M/E running", "cross_family": false }, { "answer_id": "PCD-P02-06", "score": 0.780053973197937, "sibling_score": 0.780053973197937, "answer_score": null, "sibling_qid": "MUM-2022-10-2149-Q003", "sibling_text": "checks on shaft of centrifugal pp after overhaul", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Checking pump shaft trueness / bend and static-vs-dynamic balancing", "cross_family": false } ] }, { "qid": "KOL-2026-10-4384-Q004", "text": "Scavenge fire what is ur action as a duty engineer ?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Scavenging / Scavenge Fire", "tid": "KOL-2026-10-4384", "tray": "review", "candidates": [ { "answer_id": "SCAV-323-P01-003", "score": 0.7792652249336243, "sibling_score": 0.7792652249336243, "answer_score": null, "sibling_qid": "KOL-2026-02-3917-Q003", "sibling_text": "scavenger fire what instructions as a 2e to duty engineer xx", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "As Second Engineer — instructions to the watchkeeper", "cross_family": false }, { "answer_id": "SCAV-323-P01-001", "score": 0.7289047241210938, "sibling_score": 0.7289047241210938, "answer_score": 0.5497581481933593, "sibling_qid": "KOL-2021-04-3399-Q004", "sibling_text": "as a second engineer how to deal scavenge fire", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Scavenge fire in the main engine — your actions", "cross_family": false }, { "answer_id": "SCAV-323-P01-002", "score": 0.7151759266853333, "sibling_score": 0.7151759266853333, "answer_score": null, "sibling_qid": "KOL-2023-02-1726-Q005", "sibling_text": "scavenge fire in one unit your action on running engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Fire in one unit, engine running and cannot be stopped (Malacca Strait)", "cross_family": false } ] }, { "qid": "KOL-2026-10-4384-Q005", "text": "How will check the shaft trueness, alignments ?", "family": "Workshop & Welding", "subtopic": "Shaft Trueness", "tid": "KOL-2026-10-4384", "tray": "review", "candidates": [ { "answer_id": "SHAFT-TRU-001", "score": 0.7320182919502258, "sibling_score": 0.7320182919502258, "answer_score": 0.5672961831092834, "sibling_qid": "KOL-2017-08-3090-Q001", "sibling_text": "how to check the trueness of the shaft", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "How do you check the trueness or run-out of a shaft?", "cross_family": false }, { "answer_id": "SHAFT-ALN-001", "score": 0.6845097541809082, "sibling_score": 0.6845097541809082, "answer_score": 0.5460947901010513, "sibling_qid": "CHE-2026-08-3872-Q015", "sibling_text": "shaft alignment checking", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Shaft alignment — methods and procedure", "cross_family": true }, { "answer_id": "SHAFT-ALN-003", "score": 0.6723480224609375, "sibling_score": 0.6723480224609375, "answer_score": 0.534821555018425, "sibling_qid": "KOL-2022-01-3512-Q005", "sibling_text": "shaft trueness how to check", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Coupling alignment, shaft trueness and matching points", "cross_family": true } ] }, { "qid": "KOL-2026-10-4384-Q006", "text": "What is annealing? How do u do it at what temp , for example if its a copper washer what u do ? ", "family": "NDT & Material Testing", "subtopic": "Heat Treatment", "tid": "KOL-2026-10-4384", "tray": "review", "candidates": [ { "answer_id": "HT-A-002", "score": 0.7082731127738953, "sibling_score": 0.7082731127738953, "answer_score": 0.5395990133285522, "sibling_qid": "KOL-2022-12-3584-Q006", "sibling_text": "how to reuse copper washer annealing critical point", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Annealing: process, cooling control, and the reused copper washer", "cross_family": false }, { "answer_id": "HEAT-TRT-C-002", "score": 0.6260420083999634, "sibling_score": 0.6260420083999634, "answer_score": 0.39378138184547423, "sibling_qid": "MUM-2023-09-2193-Q009", "sibling_text": "annealing normalizing induction hardening and where used on board and then result coc", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Induction hardening and flame hardening — principle and use", "cross_family": false }, { "answer_id": "GKT-MAT-005", "score": 0.5665453433990478, "sibling_score": null, "answer_score": 0.5665453433990478, "sibling_qid": "", "sibling_text": "reusing copper washers onboard copper washers seal by plastic deformation and work harden in doing so reuse anneal clean heat evenly to dull red quench in water", "sibling_family": "", "via": "answer_title", "answer_title": "Reusing copper washers onboard", "cross_family": false } ] }, { "qid": "KOL-2026-10-4385-Q001", "text": "Selective catalytic reduction- process and contents ?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "EGCS / Scrubber", "tid": "KOL-2026-10-4385", "tray": "review", "candidates": [ { "answer_id": "AV6-P03-02", "score": 0.7956485748291016, "sibling_score": 0.7956485748291016, "answer_score": 0.526972645521164, "sibling_qid": "KOC-2025-03-0931-Q008", "sibling_text": "scr selective reduction", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SCR for marine NOx control — meaning, working principle, chemistry and system components", "cross_family": false }, { "answer_id": "A6-NSEC-003", "score": 0.6609725952148438, "sibling_score": 0.6609725952148438, "answer_score": 0.49295068979263307, "sibling_qid": "KOL-2023-03-1728-Q009", "sibling_text": "nox reduction method s", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "NOx — formation, limits & reduction (SCR / EGR)", "cross_family": false }, { "answer_id": "AV6-P03-04", "score": 0.6572889685630798, "sibling_score": 0.6572889685630798, "answer_score": null, "sibling_qid": "KOL-2025-11-2023-Q003", "sibling_text": "secondary nox em dreduction methods and scr what is lp and hp scr", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "HP SCR versus LP SCR — pre-turbine and post-turbine arrangements", "cross_family": false } ] }, { "qid": "KOL-2026-10-4385-Q002", "text": "Protective clothing requirements and features?", "family": "SOLAS - Fire Safety", "subtopic": "FSS Code", "tid": "KOL-2026-10-4385", "tray": "review", "candidates": [ { "answer_id": "SCBA-EEBD-005", "score": 0.692511260509491, "sibling_score": 0.692511260509491, "answer_score": 0.4863532304763794, "sibling_qid": "KOL-2025-12-1144-Q002", "sibling_text": "protective clothing name", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fireman's outfit vs PPA vs immersion suit — what each is, when used", "cross_family": false }, { "answer_id": "TNK-SAFE-BF26-008", "score": 0.5999466180801392, "sibling_score": 0.5999466180801392, "answer_score": 0.45184981524944307, "sibling_qid": "KOL-2025-12-1145-Q003", "sibling_text": "protective suit for gas clothing material used in gas clothing", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What material is used for a gas protective suit, and what precautions are taken during instrumentation?", "cross_family": true }, { "answer_id": "COT-P03-01", "score": 0.5931572914123535, "sibling_score": 0.5931572914123535, "answer_score": null, "sibling_qid": "KOL-2025-03-0915-Q004", "sibling_text": "protection for body from hazardous cargo chemical and vapours chemical splash suits material and accessories", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "H₂S, benzene and toxic-cargo vapour exposure — hazards, limits, PPE and respirator checks", "cross_family": true } ] }, { "qid": "KOL-2026-10-4385-Q003", "text": "Detectors and sensors installed on tankers and types ?", "family": "Automation & Controls", "subtopic": "Fire / Smoke / Heat Detector", "tid": "KOL-2026-10-4385", "tray": "review", "candidates": [ { "answer_id": "FSH-DET-001", "score": 0.6702361702919006, "sibling_score": 0.6702361702919006, "answer_score": null, "sibling_qid": "KOL-2023-09-2677-Q010", "sibling_text": "8 type of detector used in engine room and working function", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Types of fire, smoke, heat and flame detectors used onboard", "cross_family": false }, { "answer_id": "PR-SAFE-A-001", "score": 0.6686291098594666, "sibling_score": 0.6686291098594666, "answer_score": 0.4874587178230286, "sibling_qid": "KOL-2026-02-1187-Q004", "sibling_text": "fixed fire detection system in oil tankers", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Pump-room fire detection and monitoring", "cross_family": true }, { "answer_id": "GAS-DET-005", "score": 0.6622132062911987, "sibling_score": 0.6622132062911987, "answer_score": null, "sibling_qid": "MUM-2025-08-2828-Q008", "sibling_text": "gas detectors used on tankers tanlscope why and when", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Tankscope: purpose, working, when to use, gases measured", "cross_family": true } ] }, { "qid": "KOL-2026-10-4385-Q004", "text": "Provision for fighting IPG gas fire ?", "family": "Cargo Ops - Gas Carriers", "subtopic": "Gas Detection / Leak", "tid": "KOL-2026-10-4385", "tray": "new", "candidates": [ { "answer_id": "IGC-GAS-006", "score": 0.6065760850906372, "sibling_score": 0.6065760850906372, "answer_score": null, "sibling_qid": "MUM-2022-07-0020-Q004", "sibling_text": "lng firefighting", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Deck fixed dry chemical powder (DCP) fire-extinguishing system", "cross_family": false }, { "answer_id": "FFF-A-001", "score": 0.5781025886535645, "sibling_score": 0.5781025886535645, "answer_score": null, "sibling_qid": "MUM-2026-09-3903-Q002", "sibling_text": "gas tanker fire fighting", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Fixed firefighting on deck and in the cargo area — tankers, chemical and gas carriers", "cross_family": false }, { "answer_id": "DCP-FIXED-A-004", "score": 0.5474113821983337, "sibling_score": 0.5474113821983337, "answer_score": null, "sibling_qid": "KOL-2024-11-0885-Q003", "sibling_text": "fixed fire extinguisher for gas tanker and motive behind this how dcp extinguisher extinguish gas fire principle behind this he don t want to listen chain reaction", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Why DCP on gas carriers, not foam/water/CO2, and the extinguishing principle", "cross_family": true } ] }, { "qid": "KOL-2026-10-4386-Q001", "text": "Precautions while fitting Gasket on boiler manhole door ?", "family": "Boilers - Safety & Survey", "subtopic": "Manhole / Mud Hole", "tid": "KOL-2026-10-4386", "tray": "review", "candidates": [ { "answer_id": "BLR-MANHOLE-004", "score": 0.6674951314926147, "sibling_score": 0.6674951314926147, "answer_score": null, "sibling_qid": "KOC-2026-05-2136-Q006", "sibling_text": "boiler manhole fitting precautions spigot clearance", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Manhole door drawing, construction, and spigot clearance + significance", "cross_family": false }, { "answer_id": "BLR-MANHOLE-005", "score": 0.63155597448349, "sibling_score": 0.63155597448349, "answer_score": 0.5844306290149689, "sibling_qid": "KOC-2025-11-1072-Q005", "sibling_text": "how to fit manhole of boiler", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "How to fit / refit a boiler manhole door safely", "cross_family": false }, { "answer_id": "BLR-SURV-P02-005", "score": 0.6154163479804993, "sibling_score": 0.6154163479804993, "answer_score": null, "sibling_qid": "KOL-2019-08-3268-Q002", "sibling_text": "how to take out boiler manhole upper door with precaution", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOL-2026-10-4386-Q002", "text": "Precautions before taking crankshaft deflection in drydock ?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft Deflection", "tid": "KOL-2026-10-4386", "tray": "review", "candidates": [ { "answer_id": "CRK-DEFL-001", "score": 0.7425929307937622, "sibling_score": 0.7425929307937622, "answer_score": null, "sibling_qid": "CHE-2025-08-0436-Q005", "sibling_text": "can you take crankshaft deflection in drydock", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Purpose, timing and scope of crankshaft deflection", "cross_family": false }, { "answer_id": "CRK-DEFL-003", "score": 0.6800220012664795, "sibling_score": 0.6800220012664795, "answer_score": null, "sibling_qid": "KOL-2020-10-3355-Q004", "sibling_text": "crankcase inspection after long voyage instruction to juniors to take crank shaft deflection how to know correctly taken", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Verifying deflection readings taken by others", "cross_family": false }, { "answer_id": "CRK-DEFL-005", "score": 0.6580001711845398, "sibling_score": 0.6580001711845398, "answer_score": null, "sibling_qid": "KOC-2022-08-1790-Q002", "sibling_text": "crankshaft deflection procedure he told no need of safeties go direct to measurement how to plot graph what precaution while measuring last 3 units explained as per manual", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Plotting and interpreting the deflection curve", "cross_family": false } ] }, { "qid": "KOL-2026-10-4386-Q003", "text": "Radiography can be done on which materials ?", "family": "NDT & Material Testing", "subtopic": "NDT Methods (MPI/DPT/UT/RT)", "tid": "KOL-2026-10-4386", "tray": "new", "candidates": [ { "answer_id": "NDT-METH-P03-001", "score": 0.6226654648780823, "sibling_score": 0.6226654648780823, "answer_score": 0.4889759004116058, "sibling_qid": "KOL-2024-01-3667-Q002", "sibling_text": "what is radiography", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Radiography / X-ray testing: application, radiation, limitations & safety", "cross_family": false }, { "answer_id": "FSH-DET-002", "score": 0.5856213569641113, "sibling_score": 0.5856213569641113, "answer_score": null, "sibling_qid": "MUM-2026-05-3192-Q003", "sibling_text": "material of radiation material", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Working of smoke detectors — ionization type and cargo-hold smoke detection", "cross_family": true }, { "answer_id": "NDT-METH-P02-002", "score": 0.4980042278766632, "sibling_score": 0.4980042278766632, "answer_score": null, "sibling_qid": "KOL-2025-08-3850-Q005", "sibling_text": "four ndt test explain radiography explain ultrasonic test lots of cross question in every question", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "2. Ultrasonic Testing & Thickness Gauging", "cross_family": false } ] }, { "qid": "KOL-2026-10-4386-Q004", "text": "Turbocharger clearances ,K value ?", "family": "Turbocharger", "subtopic": "Turbocharger Construction & Surging", "tid": "KOL-2026-10-4386", "tray": "review", "candidates": [ { "answer_id": "TC-KLM-330-001", "score": 0.7773852348327637, "sibling_score": 0.7773852348327637, "answer_score": 0.5674437671899796, "sibling_qid": "KOL-2024-08-1950-Q008", "sibling_text": "t c what are the clearances k value for turbocharged in between where the clearance given", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "What are turbocharger K, L and M clearances, and how is each one derived?", "cross_family": false }, { "answer_id": "TC-KLM-330-003", "score": 0.7380192279815674, "sibling_score": 0.7380192279815674, "answer_score": null, "sibling_qid": "MUM-2023-05-2170-Q004", "sibling_text": "turbocharger overhaul inplace what is k value", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Finding the K value during overhaul — procedure, and the reasons for taking it", "cross_family": false }, { "answer_id": "TC-CS-P01-006", "score": 0.7118778824806213, "sibling_score": 0.7118778824806213, "answer_score": null, "sibling_qid": "KOC-2025-05-1915-Q002", "sibling_text": "ae turbocharger overhaul how to take clearnce k l m", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "F·Turbocharger overhaul and clearances (ME and AE)", "cross_family": false } ] }, { "qid": "KOL-2026-10-4386-Q005", "text": "Engine room water ingress below bilge level , how to identify ?", "family": "2-Stroke - Operations & Casualty", "subtopic": "ER Round", "tid": "KOL-2026-10-4386", "tray": "review", "candidates": [ { "answer_id": "CAS-ESTOP-001", "score": 0.689278244972229, "sibling_score": 0.689278244972229, "answer_score": 0.5591608703136444, "sibling_qid": "KOL-2020-08-3343-Q003", "sibling_text": "engine room flooding how to find the point of leak", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Engine-room flooding / rapidly rising bilges — immediate action as 2/E", "cross_family": false }, { "answer_id": "OWS-15PPM-005", "score": 0.6518145799636841, "sibling_score": 0.6518145799636841, "answer_score": 0.49234550893306733, "sibling_qid": "MUM-2025-05-2295-Q011", "sibling_text": "aft bilge is lined up for ows and after hours of running you find no change in level reason", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": true }, { "answer_id": "PHL-001", "score": 0.6504552960395813, "sibling_score": 0.6504552960395813, "answer_score": null, "sibling_qid": "MUM-2026-01-2527-Q003", "sibling_text": "bilge line leak how to identify", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "There is a hole in a line — bilge suction main, sea-water line, starting-air line or steam line: your action as 2/E, and how you find the exact location", "cross_family": true } ] }, { "qid": "KOL-2026-10-4387-Q001", "text": "Cylinder lubrication feeds depend upon what factor ,if feed depend upon load then from where it sense how much load is there on engine?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Alpha Lubricator", "tid": "KOL-2026-10-4387", "tray": "review", "candidates": [ { "answer_id": "ALPHA-LUB-B-001", "score": 0.784309446811676, "sibling_score": 0.784309446811676, "answer_score": null, "sibling_qid": "CHE-2026-05-0619-Q004", "sibling_text": "alpha lubrication explains how it determines the feed and controls asking it acts on by rpm or engine load", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Alpha lubricator — control, HMI, sensors, inputs/outputs and feedback", "cross_family": false }, { "answer_id": "CYL-LUB-A-002", "score": 0.7401496171951294, "sibling_score": 0.7401496171951294, "answer_score": null, "sibling_qid": "MUM-2026-07-3733-Q006", "sibling_text": "load dependent cylinder lubrication", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Feed-rate control — quantity, timing and load/rpm-dependent dosing", "cross_family": false }, { "answer_id": "CYL-LUB-B-004", "score": 0.7128263115882874, "sibling_score": 0.7128263115882874, "answer_score": null, "sibling_qid": "CHE-2025-08-0212-Q004", "sibling_text": "why liner lubrication depends on rpm and load dependent expecting more load more fuel more sulphur to neturalize so more injection", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Feed rate, over- and under-lubrication, sufficiency checks", "cross_family": false } ] }, { "qid": "KOL-2026-10-4387-Q002", "text": "What is EICU ?", "family": "Automation & Controls", "subtopic": "Bridge Control of ME", "tid": "KOL-2026-10-4387", "tray": "new", "candidates": [ { "answer_id": "EICU-MAN-P01-001", "score": 0.5601741671562195, "sibling_score": 0.5601741671562195, "answer_score": 0.4042417392134666, "sibling_qid": "KOC-2026-08-2158-Q013", "sibling_text": "function of eicu and ecu", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "EICU, ECU, CCU, ACU — the ME control units and what is controlled electronically", "cross_family": false }, { "answer_id": "EICU-MAN-P01-004", "score": 0.5361646413803101, "sibling_score": 0.5361646413803101, "answer_score": 0.29942185580730435, "sibling_qid": "MUM-2025-08-1159-Q003", "sibling_text": "ecu and eicu", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Control-unit failure — CCU / ECU / EICU: can you still run the engine?", "cross_family": true }, { "answer_id": "MEB-MEC-P03-002", "score": 0.4601903557777405, "sibling_score": 0.4601903557777405, "answer_score": 0.28339431583881375, "sibling_qid": "KOL-2026-01-4081-Q002", "sibling_text": "ccu function eicu function", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "ME camless control architecture — ECS, CCU, EICU, MPC", "cross_family": true } ] }, { "qid": "KOL-2026-10-4387-Q003", "text": "Reason for ovality of liner in one of the unit in forward and aft direction ?", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "KOL-2026-10-4387", "tray": "review", "candidates": [ { "answer_id": "CYL-LINER-P02-004", "score": 0.7461487650871277, "sibling_score": 0.7461487650871277, "answer_score": 0.40407910794019697, "sibling_qid": "KOL-2021-12-1647-Q002", "sibling_text": "liner oval in fwd and aft direction reason", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L4 · T044-PART_02-G004High", "cross_family": false }, { "answer_id": "CYL-LINER-P01-004", "score": 0.5299311667680741, "sibling_score": null, "answer_score": 0.5299311667680741, "sibling_qid": "", "sibling_text": "ovality measuring it and reading the cause ovality out of roundness at a level larger diameter smaller diameter from two planes at right angles f a and p s at the same height safety conditioncrosshead engine side thrust is taken by the guides not the liner so the trunk engine piston thrust on the liner reason does not explain crosshead liner ovality", "sibling_family": "", "via": "answer_title", "answer_title": "Ovality: measuring it and reading the cause", "cross_family": false }, { "answer_id": "CRB-011", "score": 0.407393442094326, "sibling_score": null, "answer_score": 0.407393442094326, "sibling_qid": "", "sibling_text": "why is ovality checked on a 4 stroke connecting rod and not on a 2 stroke connecting rod the 4 stroke big end bore takes a genuine load reversal compression at firing tension at the low gas exhaust intake overlap tdc where inertia pulls on it which with bearing wear works the bore out of round along the load line so ovality is a real checked defect on the trunk piston 4 stroke rod the low speed 2 ", "sibling_family": "", "via": "answer_title", "answer_title": "Why is ovality checked on a 4-stroke connecting rod and not on a 2-stroke connecting rod?", "cross_family": false } ] }, { "qid": "KOL-2026-10-4387-Q004", "text": "How will you remove the bearing shell of main bearing ( top opening type) in AE ?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE MAIN BEARING", "tid": "KOL-2026-10-4387", "tray": "review", "candidates": [ { "answer_id": "AE-MB-003", "score": 0.8051979541778564, "sibling_score": 0.8051979541778564, "answer_score": 0.6114016830921173, "sibling_qid": "MUM-2024-01-1073-Q008", "sibling_text": "ae main bearing removal procedure how to remove top shell", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Removing the top shell and the main-bearing locking arrangement", "cross_family": false }, { "answer_id": "AE-MB-002", "score": 0.7482940554618835, "sibling_score": 0.7482940554618835, "answer_score": 0.5950831294059753, "sibling_qid": "KOL-2017-03-3042-Q006", "sibling_text": "ae main bearing lower shell removal procedure", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Removing the lower shell / bottom half of an AE main bearing", "cross_family": false }, { "answer_id": "AE-MB-001", "score": 0.7093682885169983, "sibling_score": 0.7093682885169983, "answer_score": null, "sibling_qid": "CHE-2026-04-0505-Q005", "sibling_text": "ae main bearing removal procedure", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Removing and renewing an auxiliary-engine main bearing", "cross_family": false } ] }, { "qid": "KOL-2026-10-4387-Q005", "text": "In main engine fuel pump governor has PID controller then what p ,I and d is sensing ?", "family": "Automation & Controls", "subtopic": "PID / Two-Step / Ratio Control", "tid": "KOL-2026-10-4387", "tray": "review", "candidates": [ { "answer_id": "GOV-P02-005", "score": 0.7840904593467712, "sibling_score": 0.7840904593467712, "answer_score": null, "sibling_qid": "KOL-2021-11-1643-Q003", "sibling_text": "ae electronic governor working on pid how what d is doing what it is sensing", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "PID control, loop stability & detuning", "cross_family": false }, { "answer_id": "PID-CTRL-002", "score": 0.7265350818634033, "sibling_score": 0.7265350818634033, "answer_score": null, "sibling_qid": "KOL-2025-03-1971-Q008", "sibling_text": "what are the type of controllers used in main engine why exact definitions of p i d", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Proportional, integral and derivative actions", "cross_family": false }, { "answer_id": "PID-CTRL-001", "score": 0.7078213095664978, "sibling_score": 0.7078213095664978, "answer_score": null, "sibling_qid": "MUM-2026-07-3804-Q005", "sibling_text": "how pid work in electronic governor", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "What a PID controller is and how it works", "cross_family": false } ] }, { "qid": "KOL-2026-10-4387-Q006", "text": "New steel plate has to be used on open deck in place of old one ,what checks to be done?", "family": "Workshop & Welding", "subtopic": "Plate Renewal / Doubler", "tid": "KOL-2026-10-4387", "tray": "review", "candidates": [ { "answer_id": "PLT-DBL-004", "score": 0.6957271695137024, "sibling_score": 0.6957271695137024, "answer_score": 0.5222621142864227, "sibling_qid": "KOL-2025-04-3772-Q005", "sibling_text": "new steel plate fitted to ship hull what all tests to carry", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "What tests are carried out on a new / newly-fitted steel plate?", "cross_family": false }, { "answer_id": "PW-327-003", "score": 0.6356807351112366, "sibling_score": 0.6356807351112366, "answer_score": 0.4956836551427841, "sibling_qid": "KOL-2021-08-1623-Q006", "sibling_text": "deck plates welding seam joints have got eroded how you plan to", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "3. Shell / deck plate repair and renewal in dry dock (class context)", "cross_family": false }, { "answer_id": "WBS-C-005", "score": 0.6313560605049133, "sibling_score": 0.6313560605049133, "answer_score": null, "sibling_qid": "MUM-2026-01-1238-Q007", "sibling_text": "if crack on deck and need to do welding which welding to do process what are the checks to do welding how to ensure welding is satisfactory", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Crack and leak repair — deck plate, steam line, air receiver and other shipboard cracks", "cross_family": false } ] }, { "qid": "KOL-2026-10-4387-Q007", "text": "In refrigeration system what is the purpose of equalizing line and where it is being used ?", "family": "Cargo Ops - Tankers", "subtopic": "IG System", "tid": "KOL-2026-10-4387", "tray": "new", "candidates": [ { "answer_id": "TEV-TXV-003", "score": 0.6289792060852051, "sibling_score": 0.6289792060852051, "answer_score": 0.5061197698116302, "sibling_qid": "MUM-2026-05-3266-Q002", "sibling_text": "in reefer system where is external equalising line fitted", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Equalizing line — internal vs external equalized TEV", "cross_family": true }, { "answer_id": "EQ-LINE-001", "score": 0.6176131367683411, "sibling_score": 0.6176131367683411, "answer_score": 0.5439725786447525, "sibling_qid": "KOC-2024-11-0451-Q004", "sibling_text": "reefer plant equilizing line", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Purpose and function of the equalising line / equalising valve in refrigeration service", "cross_family": true }, { "answer_id": "EQ-LINE-002", "score": 0.5707467794418335, "sibling_score": 0.5707467794418335, "answer_score": 0.5619266152381897, "sibling_qid": "MUM-2025-08-2382-Q003", "sibling_text": "equalizing line where used", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Where the equalising line is used and connected in a refrigeration plant", "cross_family": true } ] }, { "qid": "KOL-2026-10-4388-Q001", "text": "Which type of ship? which type of engine? not done ME engine?", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "KOL-2026-10-4388", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.7318906784057617, "sibling_score": 0.7318906784057617, "answer_score": null, "sibling_qid": "MUM-2026-06-3490-Q006", "sibling_text": "engine sailed type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.6978930830955505, "sibling_score": 0.6978930830955505, "answer_score": null, "sibling_qid": "MUM-2026-07-3668-Q004", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "AC-VE-001", "score": 0.6866055130958557, "sibling_score": 0.6866055130958557, "answer_score": null, "sibling_qid": "MUM-2026-01-2904-Q001", "sibling_text": "what type of ship engine power and nomenclature", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Volumetric efficiency: define it, and if it drops how do you improve it (with bumping clearance)?", "cross_family": false } ] }, { "qid": "KOL-2026-10-4388-Q002", "text": "Crude oil washing why done? How done ? What is one thing from which the crude oil washing is not possible? Types of cow", "family": "MARPOL - Annex I (Oil)", "subtopic": "COW / Crude Oil Wash", "tid": "KOL-2026-10-4388", "tray": "review", "candidates": [ { "answer_id": "COW-593-002", "score": 0.7613142132759094, "sibling_score": 0.7613142132759094, "answer_score": null, "sibling_qid": "MUM-2026-03-0827-Q003", "sibling_text": "crude oil washing procedure who does cow onboard", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Take me through the COW operation. How is it done, when is it started, and at what pump pressure?", "cross_family": false }, { "answer_id": "COW-593-001", "score": 0.703456699848175, "sibling_score": 0.703456699848175, "answer_score": 0.5359043449163436, "sibling_qid": "KOC-2023-03-0169-Q010", "sibling_text": "whats crude oil washing", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "What is crude oil washing?", "cross_family": false }, { "answer_id": "COW-593-005", "score": 0.7032068371772766, "sibling_score": 0.7032068371772766, "answer_score": 0.48648576736450194, "sibling_qid": "MUM-2025-06-0324-Q002", "sibling_text": "need for crude oil washing", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Why do we crude oil wash, and what are its advantages?", "cross_family": false } ] }, { "qid": "KOL-2026-10-4388-Q003", "text": "All controller onboard ?", "family": "Dual Fuel / Gas Systems", "subtopic": "", "tid": "KOL-2026-10-4388", "tray": "new", "candidates": [ { "answer_id": "PID-CTRL-005", "score": 0.6109629273414612, "sibling_score": 0.6109629273414612, "answer_score": null, "sibling_qid": "CHE-2026-05-0603-Q010", "sibling_text": "electrical controllers onboard", "sibling_family": "Instrumentation & Controls", "via": "sibling", "answer_title": "Open-loop, closed-loop, cascade and other control types onboard", "cross_family": true }, { "answer_id": "CTRL-TL-001", "score": 0.5525017976760864, "sibling_score": 0.5525017976760864, "answer_score": null, "sibling_qid": "MUM-2023-06-2175-Q005", "sibling_text": "almost asked about all details of this controller", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "SIPART controller — what it is, and the parameters to know", "cross_family": true }, { "answer_id": "CTRL-TL-002", "score": 0.5334270000457764, "sibling_score": 0.5334270000457764, "answer_score": 0.3622888743877411, "sibling_qid": "MUM-2025-06-1133-Q004", "sibling_text": "main engine me type of controller", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Function of a controller, and types used on board", "cross_family": true } ] }, { "qid": "KOL-2026-10-4388-Q004", "text": "Ums requirement (which particular thing is required for ship to get ums) ?", "family": "ISM Code", "subtopic": "UMS Requirement / Hours", "tid": "KOL-2026-10-4388", "tray": "review", "candidates": [ { "answer_id": "UMS-310-001", "score": 0.738863468170166, "sibling_score": 0.738863468170166, "answer_score": 0.467183917760849, "sibling_qid": "KOL-2025-12-1152-Q006", "sibling_text": "ums ship solas requirement", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a UMS ship and what does SOLAS require? (Part E, regs 46–53)", "cross_family": false }, { "answer_id": "UMS-310-004", "score": 0.6317759156227112, "sibling_score": 0.6317759156227112, "answer_score": 0.4805300682783127, "sibling_qid": "KOL-2025-09-1029-Q005", "sibling_text": "as u join vessel how you will know that ship is ums class", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "How do you confirm, on joining, that the vessel is UMS class?", "cross_family": false }, { "answer_id": "CLASS-NOT-002", "score": 0.500658956170082, "sibling_score": null, "answer_score": 0.500658956170082, "sibling_qid": "", "sibling_text": "what is ums class notation and what bilge system requirements go with a ums ship ums periodically unattended machinery space automation and alarms let the engineers leave the space typically overnight at sea statutory home solas ii 1 part e regs 46 54 flooding bilge under reg 48 alarms under reg 51 class ums notation rules andiacs unified requirementsadd the detail", "sibling_family": "", "via": "answer_title", "answer_title": "What is UMS class notation, and what bilge-system requirements go with a UMS ship?", "cross_family": false } ] }, { "qid": "KOL-2026-10-4388-Q005", "text": "BOD? What is BOD? As per MARPOL what should be the BOD ? Why BOD required ?", "family": "MARPOL - Annex IV (Sewage)", "subtopic": "Sewage Discharge", "tid": "KOL-2026-10-4388", "tray": "new", "candidates": [ { "answer_id": "VOC-MGT-004", "score": 0.5565871000289917, "sibling_score": 0.5565871000289917, "answer_score": null, "sibling_qid": "KOL-2022-05-0642-Q006", "sibling_text": "docs onboard according to marpol annex vi wanted to hear voc", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "The VOC management plan - contents, records and documents", "cross_family": true }, { "answer_id": "SEW-DISCH-001", "score": 0.5457847118377686, "sibling_score": 0.5457847118377686, "answer_score": null, "sibling_qid": "MUM-2022-08-0037-Q004", "sibling_text": "sewage def as per marpol", "sibling_family": "MARPOL - Annex IV (Sewage)", "via": "sibling", "answer_title": "1. Define sewage under MARPOL Annex IV", "cross_family": false }, { "answer_id": "SEW-DISCH-004", "score": 0.539516806602478, "sibling_score": 0.539516806602478, "answer_score": null, "sibling_qid": "KOC-2021-07-0014-Q014", "sibling_text": "marpol annex 4", "sibling_family": "MARPOL - Annex IV (Sewage)", "via": "sibling", "answer_title": "4. Annex IV requirements, equipment, documents and recent amendments", "cross_family": false } ] }, { "qid": "KOL-2026-10-4388-Q006", "text": "LO additives name and for what it is required ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "LO Test / Analysis", "tid": "KOL-2026-10-4388", "tray": "review", "candidates": [ { "answer_id": "LO-TEST-P02-001", "score": 0.7429232597351074, "sibling_score": 0.7429232597351074, "answer_score": 0.4306407213211059, "sibling_qid": "KOL-2019-11-1493-Q003", "sibling_text": "lo additives chemical name", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Lube-oil additives; detergency, dispersancy, lubricity and friction modifiers", "cross_family": false }, { "answer_id": "FQCC-583-B-011", "score": 0.5501689910888672, "sibling_score": 0.5501689910888672, "answer_score": 0.3983742713928223, "sibling_qid": "KOL-2019-10-1484-Q010", "sibling_text": "f o additives", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel oil additives — name four, what they do, and what the regulation allows", "cross_family": true }, { "answer_id": "NBAB-574-002", "score": 0.36125221401453017, "sibling_score": null, "answer_score": 0.36125221401453017, "sibling_qid": "", "sibling_text": "bunker analysis suggests used or burnt lubricating oil which parameters and tests identify it ulo fingerprint additive metals calcium detergent zinc and phosphorus zddp anti wear iso 8217 general requirement rule fuel free from ulo ulo deemed present if ca 30 mg kg and zn 15 or p 15 mg kg", "sibling_family": "", "via": "answer_title", "answer_title": "Bunker analysis suggests used or burnt lubricating oil — which parameters and tests identify it?", "cross_family": false } ] }, { "qid": "KOL-2026-10-4388-Q009", "text": "Purifier manual de sludge process what is the exact name of the water you supply to the purifier ?", "family": "Purifier & Centrifuges", "subtopic": "Desludging", "tid": "KOL-2026-10-4388", "tray": "review", "candidates": [ { "answer_id": "PUR-DSL-001", "score": 0.732401430606842, "sibling_score": 0.732401430606842, "answer_score": 0.5304456084966659, "sibling_qid": "MUM-2026-08-3854-Q007", "sibling_text": "purifier manual desludge", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Manual desludging of a purifier — the step-by-step procedure", "cross_family": false }, { "answer_id": "PURIF-BOWL-P02-001", "score": 0.725580096244812, "sibling_score": 0.725580096244812, "answer_score": null, "sibling_qid": "KOL-2023-07-3628-Q004", "sibling_text": "purifier manual desludging", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Bowl opening, closing & manual desludging — mechanism, manual operation, failure causes", "cross_family": false }, { "answer_id": "PUR-BOWL-P03-FINAL-1-003", "score": 0.7147702574729919, "sibling_score": 0.7147702574729919, "answer_score": null, "sibling_qid": "KOL-2021-09-3457-Q001", "sibling_text": "purifier water side sludge coming reasons", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "3. Overflow, Oil-Over-Water and Sludge Carry-Over — Causes, Checks and After-Overhaul Action", "cross_family": false } ] }, { "qid": "KOL-2026-10-4388-Q010", "text": "Centrifugal pump performance how to take ?", "family": "Pumps - Centrifugal & PD", "subtopic": "Centrifugal Pump", "tid": "KOL-2026-10-4388", "tray": "review", "candidates": [ { "answer_id": "PCD-P01-05", "score": 0.835935652256012, "sibling_score": 0.835935652256012, "answer_score": 0.6030526190996169, "sibling_qid": "KOL-2025-03-3757-Q003", "sibling_text": "centrifugal pump performance how to take", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Checking centrifugal pump performance — head, flow and the MCSW check with M/E running", "cross_family": false }, { "answer_id": "CPFE-583-006", "score": 0.5565086126327514, "sibling_score": null, "answer_score": 0.5565086126327514, "sibling_qid": "", "sibling_text": "performance testing a framo pump and the h q curve with two pumps one test point speed head from discharge pressure and cargo density flow meter or timed level drop compare against the maker s h q curve at that speed not against a remembered number", "sibling_family": "", "via": "answer_title", "answer_title": "Performance testing a Framo pump, and the H-Q curve with two pumps", "cross_family": false }, { "answer_id": "PCD-P01-04", "score": 0.545237809419632, "sibling_score": null, "answer_score": 0.545237809419632, "sibling_qid": "", "sibling_text": "centrifugal pump characteristic curves h q efficiency power npsh operating point parallel running h q curve head falls with rising flow shut off head at q 0 runout at h 0 flow q is volumetric flow so pump discharge is stated in m h for the same q mass flow changes with fluid density", "sibling_family": "", "via": "answer_title", "answer_title": "Centrifugal pump characteristic curves — H-Q, efficiency, power, NPSH, operating point, parallel running", "cross_family": false } ] }, { "qid": "KOL-2026-10-4388-Q011", "text": "Boiler survey preparation as 2nd engineer, how many time surveyor come how you will do the inspection what surveyor will check ?", "family": "Boilers - Safety & Survey", "subtopic": "Boiler Survey Prep", "tid": "KOL-2026-10-4388", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P01-001", "score": 0.7846965789794922, "sibling_score": 0.7846965789794922, "answer_score": 0.544364058971405, "sibling_qid": "KOL-2022-05-3536-Q004", "sibling_text": "boiler survey preparations as a 2 e", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-002", "score": 0.7816179394721985, "sibling_score": 0.7816179394721985, "answer_score": null, "sibling_qid": "KOL-2021-11-3485-Q003", "sibling_text": "boiler internal survey when and how and wht parts u will check", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.7815178036689758, "sibling_score": 0.7815178036689758, "answer_score": null, "sibling_qid": "KOL-2022-05-1677-Q004", "sibling_text": "boiler survey when carried out", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "KOL-2026-10-4388-Q012", "text": "Can you take out stuffing box without opening cylinder head? Decider ques Murthi", "family": "2-Stroke - Operations & Casualty", "subtopic": "Hydraulic Jack", "tid": "KOL-2026-10-4388", "tray": "new", "candidates": [ { "answer_id": "SB-PRG-B-001", "score": 0.6271229982376099, "sibling_score": 0.6271229982376099, "answer_score": 0.4474326282739639, "sibling_qid": "MUM-2025-12-2514-Q002", "sibling_text": "overhaul of stuffing box in place which two bolts will be kept outter are you sure how is the stuffing box held inside engine", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "In-situ stuffing box overhaul (piston in the engine)", "cross_family": true }, { "answer_id": "SB-PRG-B-003", "score": 0.618349015712738, "sibling_score": 0.618349015712738, "answer_score": null, "sibling_qid": "KOC-2022-01-1775-Q005", "sibling_text": "stuffing box overhaul just overhaul no need to explain the removal of stuffing box keep two studs below the working plate from the piston palm as a safety measure tell this in the beginning", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Safety, working table and securing studs", "cross_family": true }, { "answer_id": "SB-PRG-B-004", "score": 0.608014702796936, "sibling_score": 0.608014702796936, "answer_score": null, "sibling_qid": "KOC-2024-12-1881-Q001", "sibling_text": "stuffing box overhaul with piston out of engine", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Bench overhaul with the piston drawn", "cross_family": true } ] }, { "qid": "KOL-2026-10-4389-Q001", "text": "Reynolds number formula?", "family": "Auxiliary Equipment", "subtopic": "Anchor / Anchor Chain", "tid": "KOL-2026-10-4389", "tray": "review", "candidates": [ { "answer_id": "RES-PROP-P01-001", "score": 0.6845274567604065, "sibling_score": 0.6845274567604065, "answer_score": 0.46812180876731874, "sibling_qid": "KOL-2020-06-0412-Q001", "sibling_text": "reynolds number", "sibling_family": "", "via": "sibling", "answer_title": "Resistance fundamentals: Froude & Reynolds numbers, boundary layer, frictional resistance", "cross_family": false }, { "answer_id": "STOKES-001", "score": 0.5312904119491577, "sibling_score": 0.5312904119491577, "answer_score": 0.44691550135612484, "sibling_qid": "KOL-2023-08-1750-Q004", "sibling_text": "stokes law", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "State Stokes' law and explain its importance and where it is used", "cross_family": true }, { "answer_id": "RES-PROP-P02-002", "score": 0.39394553303718566, "sibling_score": null, "answer_score": 0.39394553303718566, "sibling_qid": "", "sibling_text": "admiralty coefficient formula significance and power estimation formula c 2 3 v3 p displacement tonnes v speed knots p shaft power origin resistance wetted area v2 power resistance speed so power area v3 wetted area scales as 2 3", "sibling_family": "", "via": "answer_title", "answer_title": "Admiralty coefficient — formula, significance and power estimation", "cross_family": false } ] }, { "qid": "KOL-2026-10-4389-Q002", "text": "Pitch angle formula?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "EEDI", "tid": "KOL-2026-10-4389", "tray": "new", "candidates": [ { "answer_id": "SHAFT-CPP-002", "score": 0.5983858704566956, "sibling_score": 0.5983858704566956, "answer_score": 0.4226174771785736, "sibling_qid": "KOL-2025-03-0918-Q006", "sibling_text": "what is slip and how to calculate pitch", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "2. Propeller slip, pitch & pitch measurement", "cross_family": true }, { "answer_id": "INCL-EXP-D-001", "score": 0.5688297748565674, "sibling_score": 0.5688297748565674, "answer_score": 0.4173936441540718, "sibling_qid": "KOC-2024-04-0333-Q005", "sibling_text": "inclination experiment only final formula", "sibling_family": "", "via": "sibling", "answer_title": "Finding GM — then KG and the centre of gravity", "cross_family": false }, { "answer_id": "LOLL-CORE-P01-001", "score": 0.5461447238922119, "sibling_score": 0.5461447238922119, "answer_score": null, "sibling_qid": "CHE-2025-08-0056-Q006", "sibling_text": "angle of loll po", "sibling_family": "", "via": "sibling", "answer_title": "What is angle of loll?", "cross_family": false } ] }, { "qid": "KOL-2026-10-4389-Q003", "text": "Metacentre?", "family": "Ship Construction & Stability", "subtopic": "Parametric / Synchronous Rolling", "tid": "KOL-2026-10-4389", "tray": "review", "candidates": [ { "answer_id": "GM-META-005", "score": 0.7465377449989319, "sibling_score": 0.7465377449989319, "answer_score": 0.5576202809810639, "sibling_qid": "MUM-2026-09-3870-Q003", "sibling_text": "metacentre", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "The metacentre and metacentric height", "cross_family": false }, { "answer_id": "STAB-D-001", "score": 0.6675375699996948, "sibling_score": 0.6675375699996948, "answer_score": 0.5358276903629303, "sibling_qid": "KOC-2025-07-0633-Q023", "sibling_text": "what is metacentre", "sibling_family": "", "via": "sibling", "answer_title": "General Ship Stability - How I Open Any Stability Question", "cross_family": false }, { "answer_id": "GM-META-003", "score": 0.6091244220733643, "sibling_score": 0.6091244220733643, "answer_score": null, "sibling_qid": "MUM-2026-04-0925-Q003", "sibling_text": "metacentric height value of gm of your ship", "sibling_family": "", "via": "sibling", "answer_title": "Finding the initial GM on board", "cross_family": false } ] }, { "qid": "KOL-2026-10-4389-Q004", "text": "Pitching rolling heaving difference?", "family": "SOLAS", "subtopic": "Ship Motions / Six Degrees of Freedom", "tid": "KOL-2026-10-4389", "tray": "new", "candidates": [ { "answer_id": "PAR-ROLL-001", "score": 0.591640293598175, "sibling_score": 0.591640293598175, "answer_score": null, "sibling_qid": "KOL-2021-12-0578-Q003", "sibling_text": "parametric rolling relation between rolling and pitching periods", "sibling_family": "", "via": "sibling", "answer_title": "01. What is parametric rolling?", "cross_family": false }, { "answer_id": "BK-001", "score": 0.5386924147605896, "sibling_score": 0.5386924147605896, "answer_score": null, "sibling_qid": "MUM-2026-05-3085-Q008", "sibling_text": "how to reduce rolling", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "What is a bilge keel and what is its purpose?", "cross_family": false }, { "answer_id": "BK-002", "score": 0.5275580883026123, "sibling_score": 0.5275580883026123, "answer_score": 0.4127173364162445, "sibling_qid": "KOC-2025-08-0643-Q004", "sibling_text": "bilge keel amplitude of rolling period of roll", "sibling_family": "", "via": "sibling", "answer_title": "How does a bilge keel reduce rolling, and how does it relate to roll period and radius of gyration?", "cross_family": false } ] }, { "qid": "KOL-2026-10-4389-Q005", "text": "Effective power?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Active / Reactive / Apparent Power", "tid": "KOL-2026-10-4389", "tray": "review", "candidates": [ { "answer_id": "PWR-ARA-006", "score": 0.8225063681602478, "sibling_score": 0.8225063681602478, "answer_score": 0.48218145966529846, "sibling_qid": "KOL-2021-03-2438-Q003", "sibling_text": "effective power", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Active / true / effective power", "cross_family": false }, { "answer_id": "RES-PROP-P02-004", "score": 0.7730519771575928, "sibling_score": 0.7730519771575928, "answer_score": 0.4132465973496437, "sibling_qid": "KOL-2021-10-0565-Q004", "sibling_text": "effective power", "sibling_family": "", "via": "sibling", "answer_title": "Ship power definitions and estimation — effective, delivered, shaft and indicated power", "cross_family": false }, { "answer_id": "PERF-470-003", "score": 0.6250615119934082, "sibling_score": 0.6250615119934082, "answer_score": null, "sibling_qid": "MUM-2024-08-1090-Q008", "sibling_text": "power calculation", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main-engine power calculation — formulae and cross-checks", "cross_family": true } ] }, { "qid": "MUM-2020-08-0001-Q002", "text": "Type of ship sailed & Main Engine Worked on ?.", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2020-08-0001", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.7163141369819641, "sibling_score": 0.7163141369819641, "answer_score": null, "sibling_qid": "MUM-2026-09-3882-Q001", "sibling_text": "introduction types of ship main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.7130677103996277, "sibling_score": 0.7130677103996277, "answer_score": null, "sibling_qid": "MUM-2026-07-3668-Q004", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "MEB-MEC-P03-001", "score": 0.6760468482971191, "sibling_score": 0.6760468482971191, "answer_score": null, "sibling_qid": "KOL-2022-06-1691-Q009", "sibling_text": "type of main engine sailed on diff bw me c b crosshead design in man lubrication", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "ME-B vs ME-C — the core difference", "cross_family": true } ] }, { "qid": "MUM-2020-08-0001-Q003", "text": "4 Codes & 4 Conventions along with dates.", "family": "Other Conventions", "subtopic": "UNCLOS", "tid": "MUM-2020-08-0001", "tray": "new", "candidates": [ { "answer_id": "IMO-CODES-P03-001", "score": 0.6304785013198853, "sibling_score": 0.6304785013198853, "answer_score": 0.29112082123756405, "sibling_qid": "KOL-2025-09-1060-Q007", "sibling_text": "4 convention 4 codes how does codes comes", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Important IMO conventions and codes: parent links", "cross_family": true }, { "answer_id": "BWM-D1D2-P04-002", "score": 0.48823100328445435, "sibling_score": 0.48823100328445435, "answer_score": null, "sibling_qid": "KOC-2025-04-0585-Q003", "sibling_text": "bwms code not convention", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "D-2 standard and the BWMS Code (ex-G8) — type approval of treatment systems", "cross_family": false }, { "answer_id": "IMO-CODES-P02-001", "score": 0.47736281156539917, "sibling_score": 0.47736281156539917, "answer_score": null, "sibling_qid": "KOC-2026-03-0858-Q003", "sibling_text": "what are the incidents that lead for the above conventions and year", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "IMO instruments: convention, code, protocol, amendment, regulation, resolution and rule", "cross_family": true } ] }, { "qid": "MUM-2020-08-0001-Q005", "text": "Types of Slip & Calculation ?", "family": "Shafting, Propeller & Rudder", "subtopic": "Propeller Curve", "tid": "MUM-2020-08-0001", "tray": "review", "candidates": [ { "answer_id": "SPR-STERN-005", "score": 0.7293264865875244, "sibling_score": 0.7293264865875244, "answer_score": 0.3996810719370842, "sibling_qid": "KOC-2023-10-0232-Q007", "sibling_text": "slip calculation", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Slip, wake, wake speed & speed of advance", "cross_family": false }, { "answer_id": "RES-PROP-P03-002", "score": 0.5924721360206604, "sibling_score": 0.5924721360206604, "answer_score": null, "sibling_qid": "CHE-2026-04-0156-Q002", "sibling_text": "observed slip and true slip", "sibling_family": "", "via": "sibling", "answer_title": "2. Propulsive coefficients: QPC, hull/propeller/relative-rotative efficiency, wake, slip and propeller curves", "cross_family": false }, { "answer_id": "IM-TSS-P01-003", "score": 0.5637401342391968, "sibling_score": 0.5637401342391968, "answer_score": 0.36088500171899796, "sibling_qid": "CHE-2026-02-0108-Q004S2", "sibling_text": "actual slip", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Slip — what it is, why it is necessary, and zero-slip", "cross_family": true } ] }, { "qid": "MUM-2020-08-0001-Q007", "text": "MARPOL Annexes ( All along with dates ) ?.", "family": "MARPOL - Annex I (Oil)", "subtopic": "Oil Discharge Criteria", "tid": "MUM-2020-08-0001", "tray": "review", "candidates": [ { "answer_id": "MARPOL-OV-003", "score": 0.7441504001617432, "sibling_score": 0.7441504001617432, "answer_score": 0.5393015146255493, "sibling_qid": "MUM-2026-09-3916-Q003", "sibling_text": "marpol annexes all", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "General overview of MARPOL and all annexes", "cross_family": false }, { "answer_id": "OILPOL-OWS-013", "score": 0.6643016934394836, "sibling_score": 0.6643016934394836, "answer_score": null, "sibling_qid": "MUM-2026-02-0790-Q001", "sibling_text": "marpol annex i latest amendment", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Latest / recent amendment under MARPOL Annex I", "cross_family": false }, { "answer_id": "MARPOL-OV-002", "score": 0.6594092845916748, "sibling_score": 0.6594092845916748, "answer_score": null, "sibling_qid": "KOC-2025-03-0552-Q016", "sibling_text": "marpol all annexes titles only", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "The six annexes and what each covers", "cross_family": true } ] }, { "qid": "MUM-2020-08-0001-Q012", "text": "You are the watch keeper and one SW line has been holed causing excessive water to go in bilges?. Your actions? KEY ANS : First you will Blackout and close the sea chest. ", "family": "2-Stroke - Operations & Casualty", "subtopic": "Bilge Line / Pump", "tid": "MUM-2020-08-0001", "tray": "review", "candidates": [ { "answer_id": "CAS-ESTOP-001", "score": 0.7213066220283508, "sibling_score": 0.7213066220283508, "answer_score": 0.5584495991468429, "sibling_qid": "KOL-2025-07-1812-Q008", "sibling_text": "er flooding from sea chest your action as 2e", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Engine-room flooding / rapidly rising bilges — immediate action as 2/E", "cross_family": false }, { "answer_id": "CAS-ESTOP-007", "score": 0.683185875415802, "sibling_score": 0.683185875415802, "answer_score": null, "sibling_qid": "MUM-2022-10-2152-Q005", "sibling_text": "explain how will you take ship to safe port full procedure", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Major machinery casualty — first actions and taking the ship to a safe port", "cross_family": false }, { "answer_id": "PCD-P04-02", "score": 0.6766529083251953, "sibling_score": 0.6766529083251953, "answer_score": null, "sibling_qid": "MUM-2025-06-2325-Q004", "sibling_text": "bilge water filled upto floor level actions to start emergency bilge suction", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "02. Emergency bilge suction — the bilge injection valve, testing and SOLAS requirements", "cross_family": true } ] }, { "qid": "MUM-2020-08-0001-Q015", "text": "Where on LPG tankers you will find various scenarios related to Cargo ?. Its Cause and Effect Chart.", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Transformer Theory", "tid": "MUM-2020-08-0001", "tray": "new", "candidates": [ { "answer_id": "GAS-DET-005", "score": 0.6075735688209534, "sibling_score": 0.6075735688209534, "answer_score": null, "sibling_qid": "MUM-2026-05-3076-Q003", "sibling_text": "tank scope working as per lpg ships", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Tankscope: purpose, working, when to use, gases measured", "cross_family": false }, { "answer_id": "TCM-374-005", "score": 0.5803208947181702, "sibling_score": 0.5803208947181702, "answer_score": null, "sibling_qid": "KOL-2016-11-0023-Q002", "sibling_text": "tanker gas freeing how exactly done hazards during loading discharging fire hazard during discharging cargo", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Gas-freeing a tanker after discharge or before dry dock (why through the IG system)", "cross_family": true }, { "answer_id": "SHELL-PLT-B-001", "score": 0.5751116871833801, "sibling_score": 0.5751116871833801, "answer_score": null, "sibling_qid": "KOC-2026-03-0871-Q002", "sibling_text": "draw cross section of ship lpg lotz of cross type of tank material of tank how tank is fixed hold space y inerting show bilge keel show sheer strake purpose of sheer strake", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Sheer strake — location, why strengthened, deck-edge / gunwale connection", "cross_family": true } ] }, { "qid": "MUM-2020-08-0003-Q001", "text": "Ships sailed on?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2020-08-0003", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.7754762768745422, "sibling_score": 0.7754762768745422, "answer_score": null, "sibling_qid": "MUM-2026-04-1320-Q002", "sibling_text": "ship sailed on", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7104212641716003, "sibling_score": 0.7104212641716003, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "INCL-EXP-B-002", "score": 0.43169392347335817, "sibling_score": null, "answer_score": 0.43169392347335817, "sibling_qid": "", "sibling_text": "b2 when and for which ships the experiment is carried out completion baseline every passenger ship regardless of size every cargo ship of length l 24 m and upwards the completion result determines lightship displacement and the longitudinal transverse and vertical position of the centre of gravity", "sibling_family": "", "via": "answer_title", "answer_title": "B2. When and for which ships the experiment is carried out", "cross_family": false } ] }, { "qid": "MUM-2020-08-0003-Q002", "text": "What are the constructional differences between Bulk carrier and a oil tanker?", "family": "Cargo Ops - Bulk Carriers", "subtopic": "Cargo Hold Level Detector", "tid": "MUM-2020-08-0003", "tray": "review", "candidates": [ { "answer_id": "SOLAS12-BC-F-002", "score": 0.7252662777900696, "sibling_score": 0.7252662777900696, "answer_score": null, "sibling_qid": "KOL-2024-10-0873-Q002", "sibling_text": "constructional difference between bulk carrier and oil tanker holds", "sibling_family": "", "via": "sibling", "answer_title": "Constructional features & structural peculiarity (incl. vs tanker holds)", "cross_family": false }, { "answer_id": "LL-CONV-P06-001", "score": 0.6847026944160461, "sibling_score": 0.6847026944160461, "answer_score": null, "sibling_qid": "MUM-2023-11-0144-Q001", "sibling_text": "constructional difference between tanker and bulk carrier why tanker has less freeboard", "sibling_family": "", "via": "sibling", "answer_title": "LLC-P06-01 - Ship categories and freeboard differences: Type A, Type B and practical ship cases", "cross_family": false }, { "answer_id": "BC-IMSBC-002", "score": 0.677836000919342, "sibling_score": 0.677836000919342, "answer_score": 0.5497526258230209, "sibling_qid": "MUM-2026-02-0762-Q001", "sibling_text": "difference between offshore vessels and bulk carrier arrangement", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "2. Bulk carrier construction and structural design", "cross_family": false } ] }, { "qid": "MUM-2020-08-0003-Q003", "text": "What kind of hazards we encounter while carrying a solid bulk cargo?", "family": "Cargo Ops - Bulk Carriers", "subtopic": "Cargo Hold Level Detector", "tid": "MUM-2020-08-0003", "tray": "review", "candidates": [ { "answer_id": "IMSBC-BULK-004", "score": 0.7586343288421631, "sibling_score": 0.7586343288421631, "answer_score": null, "sibling_qid": "KOL-2021-02-0473-Q001", "sibling_text": "hazards in carrying solid cargos", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "The IMSBC Code and solid bulk cargo hazards", "cross_family": false }, { "answer_id": "BC-IMSBC-009", "score": 0.659259021282196, "sibling_score": 0.659259021282196, "answer_score": null, "sibling_qid": "KOC-2021-07-0007-Q017", "sibling_text": "dangerous possibilities of carrying coal cargo", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "9. Coal cargo — hazards and precautions", "cross_family": false }, { "answer_id": "PAR-ROLL-006", "score": 0.6378273963928223, "sibling_score": 0.6378273963928223, "answer_score": 0.4768642783164978, "sibling_qid": "KOL-2017-01-0045-Q001", "sibling_text": "cargo vessel hazards one is water ingress nd second is cargo shifting parametric rolling", "sibling_family": "", "via": "sibling", "answer_title": "06. Hazards and stability effects of parametric rolling", "cross_family": false } ] }, { "qid": "MUM-2020-08-0003-Q004", "text": "What’s an Angle of repose ?", "family": "Cargo Ops - Tankers", "subtopic": "Angle of Repose / Bulk Cargo Stability", "tid": "MUM-2020-08-0003", "tray": "new", "candidates": [ { "answer_id": "IMSBC-BULK-003", "score": 0.6435616612434387, "sibling_score": 0.6435616612434387, "answer_score": 0.5615869134664535, "sibling_qid": "MUM-2026-06-3359-Q002", "sibling_text": "angle of repose", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Angle of repose, slope of stowage and cargo shifting", "cross_family": true }, { "answer_id": "LOLL-P02-005", "score": 0.4941115975379944, "sibling_score": 0.4941115975379944, "answer_score": null, "sibling_qid": "KOL-2016-11-0029-Q003", "sibling_text": "angle of lol angle of lurch angle of downflooding and practical application angle of vanishing stability", "sibling_family": "", "via": "sibling", "answer_title": "5. Loll among the limits — vanishing stability, lurch, downflooding, contraflexure", "cross_family": false }, { "answer_id": "LOLL-P02-001", "score": 0.48783761262893677, "sibling_score": 0.48783761262893677, "answer_score": null, "sibling_qid": "MUM-2026-03-0839-Q008", "sibling_text": "angle of loll and how it happens how to understand it is angle of loll", "sibling_family": "", "via": "sibling", "answer_title": "4. Significance of angle of loll — and why it occurs", "cross_family": false } ] }, { "qid": "MUM-2020-08-0003-Q005", "text": "Free surface effect?", "family": "Ship Construction & Stability", "subtopic": "Static / Dynamic Stability/damage stability", "tid": "MUM-2020-08-0003", "tray": "review", "candidates": [ { "answer_id": "FSE-P03-003", "score": 0.7664222121238708, "sibling_score": 0.7664222121238708, "answer_score": 0.4186956316232681, "sibling_qid": "KOC-2026-04-0900-Q004", "sibling_text": "explain free surface effect calculation", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "3. Formula, factors and calculation", "cross_family": false }, { "answer_id": "FSE-P01-001", "score": 0.7612894177436829, "sibling_score": 0.7612894177436829, "answer_score": 0.49091622829437254, "sibling_qid": "KOC-2026-05-2133-Q007", "sibling_text": "explain free surface effect", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "What is free surface effect? Explain the basic concept.", "cross_family": false }, { "answer_id": "FSE-P02-001", "score": 0.5358182668685912, "sibling_score": null, "answer_score": 0.5358182668685912, "sibling_qid": "", "sibling_text": "reducing and correcting free surface effect in practice fse is a virtual rise of g i e a virtual loss of gm m is fixed by the waterplane and does not move free surface correction rise of g i tank w in metres the liquid density is in it not just geometry", "sibling_family": "", "via": "answer_title", "answer_title": "Reducing and correcting free surface effect in practice", "cross_family": false } ] }, { "qid": "MUM-2020-08-0003-Q007", "text": "Annex 4 discharge criteria ?", "family": "MARPOL - Annex I (Oil)", "subtopic": "Oil Discharge Criteria", "tid": "MUM-2020-08-0003", "tray": "review", "candidates": [ { "answer_id": "ODC-001", "score": 0.7122982740402222, "sibling_score": 0.7122982740402222, "answer_score": null, "sibling_qid": "KOC-2024-11-0463-Q003", "sibling_text": "annex i discharge criteria", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "MARPOL Annex I oil discharge criteria — the overall framework", "cross_family": false }, { "answer_id": "SEW-DISCH-002", "score": 0.7086890339851379, "sibling_score": 0.7086890339851379, "answer_score": null, "sibling_qid": "CHE-2026-04-0169-Q010", "sibling_text": "annex 4 discharge criteria internal deciding questions", "sibling_family": "MARPOL - Annex IV (Sewage)", "via": "sibling", "answer_title": "2. MARPOL Annex IV sewage discharge criteria", "cross_family": true }, { "answer_id": "CHEM-PA-005", "score": 0.695492684841156, "sibling_score": 0.695492684841156, "answer_score": null, "sibling_qid": "MUM-2026-03-2940-Q003", "sibling_text": "annex 2 discharge criteria", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Discharge criteria for NLS cargo residues, by category", "cross_family": false } ] }, { "qid": "MUM-2020-08-0003-Q010", "text": "Certificate for the company under ism?", "family": "ISM Code", "subtopic": "SMC / DOC", "tid": "MUM-2020-08-0003", "tray": "review", "candidates": [ { "answer_id": "ISM-SMCDOC-A-001", "score": 0.7156211733818054, "sibling_score": 0.7156211733818054, "answer_score": null, "sibling_qid": "KOC-2024-01-0272-Q008", "sibling_text": "statutory certificate related to ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM certificates: the DOC and SMC family", "cross_family": false }, { "answer_id": "ISM-SMC-B-001", "score": 0.6894749402999878, "sibling_score": 0.6894749402999878, "answer_score": 0.4523160755634308, "sibling_qid": "KOL-2018-12-0251-Q005", "sibling_text": "ism smc who gives certificate validity", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "SMC — purpose, contents, issue and validity", "cross_family": false }, { "answer_id": "ISM-SMC-B-005", "score": 0.6837167143821716, "sibling_score": 0.6837167143821716, "answer_score": null, "sibling_qid": "KOL-2023-07-0752-Q003", "sibling_text": "initial ism certificate issued and relevant documents for certificate issued", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Obtaining the DOC and SMC — who issues, who audits", "cross_family": false } ] }, { "qid": "MUM-2020-08-0003-Q011", "text": "Certificates under MLC ? Process !", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2020-08-0003", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-006", "score": 0.7923720479011536, "sibling_score": 0.7923720479011536, "answer_score": 0.3781573295593262, "sibling_qid": "MUM-2026-06-3656-Q002", "sibling_text": "certificates under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false }, { "answer_id": "CERT-LIST-P01-001", "score": 0.5414508581161499, "sibling_score": 0.5414508581161499, "answer_score": null, "sibling_qid": "KOC-2023-01-0142-Q002", "sibling_text": "certificates", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "List the statutory certificates carried onboard a ship.", "cross_family": true }, { "answer_id": "AVICERT-001", "score": 0.5411717891693115, "sibling_score": 0.5411717891693115, "answer_score": null, "sibling_qid": "KOC-2026-03-0853-Q008", "sibling_text": "certificates come under annex", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What certificates and documents are required to be carried on board under MARPOL Annex VI?", "cross_family": true } ] }, { "qid": "MUM-2020-09-0004-Q001", "text": "Types of ship sailed.", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2020-09-0004", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8295242190361023, "sibling_score": 0.8295242190361023, "answer_score": null, "sibling_qid": "CHE-2026-09-3938-Q001", "sibling_text": "types of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7972626686096191, "sibling_score": 0.7972626686096191, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7830641269683838, "sibling_score": 0.7830641269683838, "answer_score": null, "sibling_qid": "CHE-2026-03-0253-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "MUM-2020-09-0004-Q003", "text": "What is CSR and where used?", "family": "Surveys - Statutory", "subtopic": "CSR / Continuous Synopsis Record", "tid": "MUM-2020-09-0004", "tray": "new", "candidates": [ { "answer_id": "CSR-585-001", "score": 0.5812769532203674, "sibling_score": 0.5812769532203674, "answer_score": 0.29057653844356535, "sibling_qid": "KOC-2025-11-0718-Q006", "sibling_text": "what is csr", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the Continuous Synopsis Record (CSR)? Explain its purpose and requirements.", "cross_family": false }, { "answer_id": "CERT-LIST-P01-001", "score": 0.5428190231323242, "sibling_score": 0.5428190231323242, "answer_score": null, "sibling_qid": "KOL-2026-01-1159-Q006", "sibling_text": "csr and its forms", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "List the statutory certificates carried onboard a ship.", "cross_family": false }, { "answer_id": "ISPS-P03-001", "score": 0.37633562088012695, "sibling_score": 0.37633562088012695, "answer_score": null, "sibling_qid": "KOC-2026-08-2106-Q006", "sibling_text": "function of cso", "sibling_family": "ISPS", "via": "sibling", "answer_title": "Company Security Officer (CSO): duties, functions and responsibilities", "cross_family": true } ] }, { "qid": "MUM-2020-09-0004-Q004", "text": "What is BELEVE?", "family": "Cargo Ops - Tankers", "subtopic": "Flammability Diagram", "tid": "MUM-2020-09-0004", "tray": "new", "candidates": [ { "answer_id": "BLEVE-BOG-001", "score": 0.40935662388801575, "sibling_score": 0.40935662388801575, "answer_score": 0.16320121735334395, "sibling_qid": "KOC-2025-06-0614-Q001", "sibling_text": "bleve", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "What is BLEVE and how is it explained on gas carriers?", "cross_family": true }, { "answer_id": "CERT-LIST-P03-004", "score": 0.17352939248085023, "sibling_score": null, "answer_score": 0.17352939248085023, "sibling_qid": "", "sibling_text": "statutory certificates surveys validity stability booklet", "sibling_family": "", "via": "answer_title", "answer_title": "Statutory certificates, surveys & validity (+ stability booklet)", "cross_family": false }, { "answer_id": "MSB-ESB-B-005", "score": 0.16466814130544663, "sibling_score": null, "answer_score": 0.16466814130544663, "sibling_qid": "", "sibling_text": "esb feed to essential services", "sibling_family": "", "via": "answer_title", "answer_title": "ESB feed to essential services", "cross_family": false } ] }, { "qid": "MUM-2020-09-0004-Q007", "text": "What does area under statical stability curve give?", "family": "SOLAS", "subtopic": "Stability Curves (GZ / KN)", "tid": "MUM-2020-09-0004", "tray": "review", "candidates": [ { "answer_id": "STAB-GZ-P04-001", "score": 0.6650996804237366, "sibling_score": 0.6650996804237366, "answer_score": 0.5598993480205535, "sibling_qid": "KOL-2022-08-0668-Q003", "sibling_text": "intact stability criteria want to listen area under gz curve", "sibling_family": "", "via": "sibling", "answer_title": "Dynamic stability — the area under the GZ curve", "cross_family": false }, { "answer_id": "STAB-GZ-P01-001", "score": 0.6447611451148987, "sibling_score": 0.6447611451148987, "answer_score": null, "sibling_qid": "KOL-2018-09-0220-Q001", "sibling_text": "static stability defn and curve", "sibling_family": "", "via": "sibling", "answer_title": "Draw and explain the statical stability (GZ) curve", "cross_family": false }, { "answer_id": "GZKN-P02-001", "score": 0.6255335807800293, "sibling_score": 0.6255335807800293, "answer_score": null, "sibling_qid": "KOL-2020-02-0391-Q003", "sibling_text": "cross curve of stability statical stability curve details", "sibling_family": "", "via": "sibling", "answer_title": "Cross curves of stability (KN curves) — draw, explain, and use to build the GZ curve", "cross_family": false } ] }, { "qid": "MUM-2020-09-2127-Q005", "text": "What js an influence number", "family": "Shafting, Propeller & Rudder", "subtopic": "Propeller Drydock Checks / Propeller Shaft Measurements", "tid": "MUM-2020-09-2127", "tray": "new", "candidates": [ { "answer_id": "DUS-P5-04", "score": 0.6353698968887329, "sibling_score": 0.6353698968887329, "answer_score": null, "sibling_qid": "MUM-2026-09-3950-Q008", "sibling_text": "what is a influence number", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Intermediate shaft — overhaul, oil supply to the bearing, and the influence number", "cross_family": true }, { "answer_id": "SHAFT-ALN-002", "score": 0.6164883375167847, "sibling_score": 0.6164883375167847, "answer_score": 0.2173191800713539, "sibling_qid": "KOC-2025-10-1947-Q003", "sibling_text": "influence number", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Fair-curve alignment, influence numbers and propeller overhang", "cross_family": true }, { "answer_id": "LOF-359-001", "score": 0.23396808803081512, "sibling_score": null, "answer_score": 0.23396808803081512, "sibling_qid": "", "sibling_text": "beta ratio beta efficiency x particle count x m upstream particle count x m downstream efficiency 1 1 100 mathematical identity from the definition", "sibling_family": "", "via": "answer_title", "answer_title": "Beta Ratio / Beta Efficiency", "cross_family": false } ] }, { "qid": "MUM-2020-12-0005-Q003", "text": "Bulbous Bow and on which ships they r provided and y", "family": "", "subtopic": "Bulbous Bow", "tid": "MUM-2020-12-0005", "tray": "new", "candidates": [ { "answer_id": "PPS-230-006", "score": 0.5876553058624268, "sibling_score": 0.5876553058624268, "answer_score": null, "sibling_qid": "MUM-2026-02-0782-Q011", "sibling_text": "bulbous bow how it is connected to ship shape of bow", "sibling_family": "", "via": "sibling", "answer_title": "Fore-end / fore-peak structure: draw and describe", "cross_family": false }, { "answer_id": "BC-IMSBC-002", "score": 0.5130297541618347, "sibling_score": 0.5130297541618347, "answer_score": null, "sibling_qid": "MUM-2022-08-0040-Q002", "sibling_text": "since i sailed on container and bulk carrier he started with what s the design difference the bulbous bow of container and bulk carrier and why it is so", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "2. Bulk carrier construction and structural design", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.4909203350543976, "sibling_score": 0.4909203350543976, "answer_score": null, "sibling_qid": "KOC-2024-11-0474-Q002", "sibling_text": "b60 type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2020-12-0005-Q005S4", "text": "Name 3 conventions concerning oil pollution coverage Some More .", "family": "MARPOL - Annex I (Oil)", "subtopic": "AMMENDMENTS", "tid": "MUM-2020-12-0005", "tray": "review", "candidates": [ { "answer_id": "CLC-CIV-B-001", "score": 0.7554931640625, "sibling_score": 0.7554931640625, "answer_score": null, "sibling_qid": "KOL-2024-09-0865-Q004", "sibling_text": "3 conventions dealing with compensation from oil pollution damage", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "The conventions for oil-pollution compensation: CLC, Fund, Supplementary Fund", "cross_family": true }, { "answer_id": "OILPOL-OWS-008", "score": 0.7397311329841614, "sibling_score": 0.7397311329841614, "answer_score": 0.5806649804115295, "sibling_qid": "KOL-2025-05-0939-Q006", "sibling_text": "convention related to oil pollution", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Convention and Annex I framework for oil pollution", "cross_family": false }, { "answer_id": "OPRC-330-001", "score": 0.7235289812088013, "sibling_score": 0.7235289812088013, "answer_score": 0.5340225845575333, "sibling_qid": "KOL-2025-09-1069-Q005", "sibling_text": "2 conventions related to oil pollution oprc convention in detail", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Explain the OPRC Convention — its purpose, aims and how it works", "cross_family": true } ] }, { "qid": "MUM-2021-01-0008-Q005", "text": "EGB uptake fire", "family": "Boilers - Operations & Firing", "subtopic": "Burner Type (Rotary Cup / Pressure Jet)", "tid": "MUM-2021-01-0008", "tray": "review", "candidates": [ { "answer_id": "UPT-FIRE-003", "score": 0.7426828742027283, "sibling_score": 0.7426828742027283, "answer_score": 0.3614193797111511, "sibling_qid": "KOC-2024-06-1843-Q007", "sibling_text": "egb uptake fire actions", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Fire in the exhaust gas boiler or economiser — actions and instructions to the duty engineers", "cross_family": false }, { "answer_id": "UPT-FIRE-001", "score": 0.6140566468238831, "sibling_score": 0.6140566468238831, "answer_score": 0.3641133338212967, "sibling_qid": "MUM-2026-03-0999-Q005", "sibling_text": "uptake fire", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "The 4/E reports an uptake fire — your actions as 2/E", "cross_family": false }, { "answer_id": "SMK-FUNL-BF01-004", "score": 0.3896348163485527, "sibling_score": null, "answer_score": 0.3896348163485527, "sibling_qid": "", "sibling_text": "there are sparks from the funnel on arrival in port what is the reason and your action cause egb soot fire ignited by arrival load transients on a soot loaded gas side confirm rising egb gas outlet temp with steady inlet classical signature of a tube fire", "sibling_family": "", "via": "answer_title", "answer_title": "There are sparks from the funnel on arrival in port — what is the reason and your action?", "cross_family": false } ] }, { "qid": "MUM-2021-01-0008-Q006", "text": "Annexes of Marpol", "family": "MARPOL - Annex I (Oil)", "subtopic": "Oil Discharge Criteria", "tid": "MUM-2021-01-0008", "tray": "review", "candidates": [ { "answer_id": "MARPOL-OV-003", "score": 0.8259881138801575, "sibling_score": 0.8259881138801575, "answer_score": null, "sibling_qid": "MUM-2026-09-3916-Q003", "sibling_text": "marpol annexes all", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "General overview of MARPOL and all annexes", "cross_family": false }, { "answer_id": "IOPP-191-005", "score": 0.7500516772270203, "sibling_score": 0.7500516772270203, "answer_score": null, "sibling_qid": "CHE-2026-04-0147-Q005", "sibling_text": "marpol annex 1 documents", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "MARPOL Annex I certificates and documents for IOPP / OWS / PSC preparation", "cross_family": false }, { "answer_id": "AVI-SCOPE-004", "score": 0.7385314106941223, "sibling_score": 0.7385314106941223, "answer_score": null, "sibling_qid": "MUM-2026-03-0799-Q003", "sibling_text": "marpol annex 6", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Explain MARPOL Annex VI: purpose, scope, chapters/regulations and main onboard requirements.", "cross_family": false } ] }, { "qid": "MUM-2021-02-1009-Q001", "text": "types of ships sailed on", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2021-02-1009", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8005818128585815, "sibling_score": 0.8005818128585815, "answer_score": null, "sibling_qid": "CHE-2026-09-3938-Q001", "sibling_text": "types of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7698948383331299, "sibling_score": 0.7698948383331299, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.498785200715065, "sibling_score": null, "answer_score": 0.498785200715065, "sibling_qid": "", "sibling_text": "type a and type b ships how form and cargo set the freeboard", "sibling_family": "", "via": "answer_title", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "MUM-2021-02-1009-Q002", "text": "TYPES of engines done. Last ship engine specifications", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2021-02-1009", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.759646475315094, "sibling_score": 0.759646475315094, "answer_score": null, "sibling_qid": "CHE-2026-04-0373-Q001S6", "sibling_text": "type of ship specification of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P03-003", "score": 0.7271450757980347, "sibling_score": 0.7271450757980347, "answer_score": null, "sibling_qid": "KOC-2025-08-1938-Q005", "sibling_text": "last ship engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Engine nomenclature, layout, mark number and engine constant", "cross_family": true }, { "answer_id": "ETP-344-P01-001", "score": 0.723484218120575, "sibling_score": 0.723484218120575, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q001", "sibling_text": "type of ship sailed and engines details", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false } ] }, { "qid": "MUM-2021-02-1009-Q005", "text": "Expansion allowance for boiler", "family": "Boilers - Construction & Components", "subtopic": "Boiler Construction / Supports", "tid": "MUM-2021-02-1009", "tray": "review", "candidates": [ { "answer_id": "BLR-TUBE-P01-003", "score": 0.7550790309906006, "sibling_score": 0.7550790309906006, "answer_score": 0.5076877176761627, "sibling_qid": "CHE-2026-05-0613-Q004", "sibling_text": "expansion arrangement boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "02. Thermal expansion arrangements for boiler tubes", "cross_family": false }, { "answer_id": "BLR-TUBE-P02-001", "score": 0.6750584840774536, "sibling_score": 0.6750584840774536, "answer_score": null, "sibling_qid": "KOL-2018-01-1347-Q005", "sibling_text": "how is expansion of tubes accomodated in boilers ege how is leakage prevented in such an arrangement due to expansion", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Identifying a boiler tube leak and finding the leaking tube", "cross_family": false }, { "answer_id": "BLR-DRUM-004", "score": 0.5449611335992813, "sibling_score": null, "answer_score": 0.5449611335992813, "sibling_qid": "", "sibling_text": "boiler drum expansion arrangements boiler heats from cold to operating temperature drums and tubes expand they must expand freely or the structure cracks principle one fixed anchored point the rest free to slide", "sibling_family": "", "via": "answer_title", "answer_title": "Boiler-drum expansion arrangements", "cross_family": false } ] }, { "qid": "MUM-2021-05-0009-Q002", "text": "BWM convention applied to which ship ?", "family": "Other Conventions", "subtopic": "Ballast Water Convention / BWM / BWMS", "tid": "MUM-2021-05-0009", "tray": "new", "candidates": [ { "answer_id": "BWM-D1D2-P02-001", "score": 0.6431240439414978, "sibling_score": 0.6431240439414978, "answer_score": null, "sibling_qid": "KOC-2023-02-0147-Q001", "sibling_text": "bwts convention d1 and d2 standard for which ships when came into effect", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Regulation D-1 — ballast water exchange standard and the accepted methods", "cross_family": false }, { "answer_id": "BWMS-A-003", "score": 0.6430962681770325, "sibling_score": 0.6430962681770325, "answer_score": null, "sibling_qid": "KOL-2025-09-1086-Q004", "sibling_text": "bwm convention and type used in your ship what all record keeping", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Records, the management plan and certificate checks", "cross_family": false }, { "answer_id": "BWMS-A-001", "score": 0.6333175301551819, "sibling_score": 0.6333175301551819, "answer_score": 0.4700639098882675, "sibling_qid": "KOL-2024-05-0840-Q006", "sibling_text": "bwm convention", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "The BWM Convention: what it is and why it is required", "cross_family": false } ] }, { "qid": "MUM-2021-05-0009-Q003", "text": "Debunkering operation is recorded where ? Code and item number?", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "MUM-2021-05-0009", "tray": "new", "candidates": [ { "answer_id": "ORB-IOPP-OWS-004", "score": 0.48858392238616943, "sibling_score": 0.48858392238616943, "answer_score": null, "sibling_qid": "KOC-2026-02-0805-Q007", "sibling_text": "weekly entries of orb code item no bunker missed entry", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Weekly ORB entries — the mandatory sludge retention record, the bunker entry, and what is voluntary", "cross_family": false }, { "answer_id": "CO2-SYS-006", "score": 0.47187185287475586, "sibling_score": 0.47187185287475586, "answer_score": null, "sibling_qid": "KOC-2026-03-0851-Q005", "sibling_text": "syphon tube function 6orb part 1 codes and under which code and item number ae sump clng manual tranfer to record", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "CO2 bottles, manifolds, pilot cylinders and valve components", "cross_family": false }, { "answer_id": "OWS-ORB-006", "score": 0.44799479842185974, "sibling_score": 0.44799479842185974, "answer_score": null, "sibling_qid": "KOC-2026-03-0848-Q011", "sibling_text": "orb codes and entries", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "6. Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": false } ] }, { "qid": "MUM-2021-05-1325-Q001", "text": "What protection is there for deck equipment working in hazardous area ? Told about zener barrier but he was asking what is the name of that device ?", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "MUM-2021-05-1325", "tray": "review", "candidates": [ { "answer_id": "HAZ-EX-B-001", "score": 0.6769559383392334, "sibling_score": 0.6769559383392334, "answer_score": 0.4459001451730728, "sibling_qid": "CHE-2026-03-0358-Q005", "sibling_text": "zener barrier working in intrinsically safe", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Intrinsically safe (Ex i) equipment — what it is, how it works, where it is used, how you identify it", "cross_family": false }, { "answer_id": "FSF-BF073-004", "score": 0.6640192270278931, "sibling_score": 0.6640192270278931, "answer_score": null, "sibling_qid": "CHE-2026-03-0359-Q001", "sibling_text": "zener diode zener barrier working in intrinsically safe", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a magnetic fail safe?", "cross_family": false }, { "answer_id": "WCM-P02-001", "score": 0.6057354211807251, "sibling_score": 0.6057354211807251, "answer_score": 0.4435434103012085, "sibling_qid": "MUM-2026-06-3651-Q006", "sibling_text": "deck electrical safeties", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Safeties and trips on ship's cranes (deck, cargo, provision, engine-room)", "cross_family": false } ] }, { "qid": "MUM-2021-05-1325-Q003", "text": "Maintenance on Busbar ?", "family": "ISM Code", "subtopic": "ISM - Non-conformity / Maintenance", "tid": "MUM-2021-05-1325", "tray": "review", "candidates": [ { "answer_id": "HV-SYS-P05-002", "score": 0.6511666774749756, "sibling_score": 0.6511666774749756, "answer_score": 0.4588326245546341, "sibling_qid": "KOL-2018-10-2228-Q002", "sibling_text": "high voltage bus bar maintenance how it look like safety and all", "sibling_family": "", "via": "sibling", "answer_title": "Working on the HV system: precautions, isolation and earthing before maintenance", "cross_family": false }, { "answer_id": "MSB-ESB-A-001", "score": 0.6251319646835327, "sibling_score": 0.6251319646835327, "answer_score": 0.4635753273963928, "sibling_qid": "MUM-2025-07-1549-Q002", "sibling_text": "bus bar working", "sibling_family": "", "via": "sibling", "answer_title": "Busbars: construction, arrangement, connection, checks and rating", "cross_family": false }, { "answer_id": "CB033-C-001", "score": 0.6215661764144897, "sibling_score": 0.6215661764144897, "answer_score": null, "sibling_qid": "MUM-2022-08-1349-Q001", "sibling_text": "maintenances on mcbs", "sibling_family": "", "via": "sibling", "answer_title": "How do you carry out maintenance and testing on an ACB / main circuit breaker?", "cross_family": false } ] }, { "qid": "MUM-2021-06-0936-Q005", "text": "Types of safety valve Amount of lift for each", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2021-06-0936", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.7455698847770691, "sibling_score": 0.7455698847770691, "answer_score": null, "sibling_qid": "MUM-2026-07-3737-Q004", "sibling_text": "boiler type safety valve type lift of safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACRV-005", "score": 0.7044946551322937, "sibling_score": 0.7044946551322937, "answer_score": 0.48357481956481935, "sibling_qid": "MUM-2026-06-3429-Q010", "sibling_text": "safety valve lift difference", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-002", "score": 0.6822177171707153, "sibling_score": 0.6822177171707153, "answer_score": null, "sibling_qid": "KOL-2026-02-3922-Q005", "sibling_text": "what is lifting of safety valve tell only within 3 percent of designated set pressure nothing else", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Acceptance limits and durations — the accumulation limit, the maximum test periods, and the action if the limit is exceeded", "cross_family": false } ] }, { "qid": "MUM-2021-06-0936-Q006", "text": "Improved high lift safety valve. How achieved? Why floating ring provided?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2021-06-0936", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.6787518858909607, "sibling_score": 0.6787518858909607, "answer_score": null, "sibling_qid": "MUM-2026-06-3405-Q017", "sibling_text": "improved high lift safety valve details", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACSS-002", "score": 0.43823089003562926, "sibling_score": null, "answer_score": 0.43823089003562926, "sibling_qid": "", "sibling_text": "relief safety valves settings testing lifting reasons bursting disc set just above stage working pressure the class standard accumulation limit is about 10 though the exact set point is a maker sms value non isolable from its stage test to the maker s method easing gear or test rig for lifting pressure log and reset", "sibling_family": "", "via": "answer_title", "answer_title": "Relief / safety valves: settings, testing, lifting reasons; bursting disc", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-003", "score": 0.42540232241153714, "sibling_score": null, "answer_score": 0.42540232241153714, "sibling_qid": "", "sibling_text": "the accumulation test and the safety valve required lift how lift and capacity are verified and why accumulation must stay inside the limit popping test proves setting accumulation test proves installed relieving capacity not two versions of one test sizing the class discharge formula sizes the aggregate valve area from the maker s specified peak evaporation using a constant for the valve type", "sibling_family": "", "via": "answer_title", "answer_title": "The accumulation test and the safety valve — required lift, how lift and capacity are verified, and why accumulation must stay inside the limit", "cross_family": false } ] }, { "qid": "MUM-2021-06-2129-Q004", "text": "Rudder crack. What test How to check after repair", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "MUM-2021-06-2129", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.6953975558280945, "sibling_score": 0.6953975558280945, "answer_score": null, "sibling_qid": "KOL-2018-02-3123-Q004", "sibling_text": "drydock checks on rudder stern tube propeller all rudder clearences taking and values repairs cracks got funtion 6", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "DUS-P5-05", "score": 0.5613368868827819, "sibling_score": null, "answer_score": 0.5613368868827819, "sibling_qid": "", "sibling_text": "rudder checks and rudder blade tightness leak test in drydock visual checks coating condition cavitation erosion on the blade leading edge propeller side face sacrificial anodes against the approved cathodic protection plan grounding continuity against the approved acceptance criterion plate and weld cracks pintle clearance measured with feeler the numerical acceptance limit is class specific and ", "sibling_family": "", "via": "answer_title", "answer_title": "Rudder checks and rudder-blade tightness/leak test in drydock", "cross_family": false }, { "answer_id": "HULL-DD-005", "score": 0.47748643159866333, "sibling_score": null, "answer_score": 0.47748643159866333, "sibling_qid": "", "sibling_text": "6 integrity and leak test after plate renewal before flooding the dock two things to prove before flooding weld soundness no defects and weld tightness no leak they are not the same test soundness visual then mpi dye penetrant for surface cracks ultrasonic or radiography on critical butts extent agreed with the attending surveyor", "sibling_family": "", "via": "answer_title", "answer_title": "6. Integrity and leak test after plate renewal, before flooding the dock", "cross_family": false } ] }, { "qid": "MUM-2021-09-1010-Q009", "text": "Cylinder head overhaul complete?", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Cover / Head", "tid": "MUM-2021-09-1010", "tray": "review", "candidates": [ { "answer_id": "XHEAD-303-007", "score": 0.7889207005500793, "sibling_score": 0.7889207005500793, "answer_score": null, "sibling_qid": "KOC-2026-02-2003-Q007", "sibling_text": "cylinder head overhaul", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Crosshead inspection, survey and overhaul, including in-place overhaul", "cross_family": false }, { "answer_id": "PIST-CSI-C-003", "score": 0.7842646241188049, "sibling_score": 0.7842646241188049, "answer_score": null, "sibling_qid": "KOL-2020-03-3337-Q004", "sibling_text": "piston overhauling complete", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston removal, lifting precautions and overhaul / decarbonising", "cross_family": false }, { "answer_id": "CCH-590-002", "score": 0.76321941614151, "sibling_score": 0.76321941614151, "answer_score": null, "sibling_qid": "CHE-2026-03-0486-Q010", "sibling_text": "cylinder head overhauling and checks", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "How do you pressure test a cylinder head, and how do you find and rectify a leak from it?", "cross_family": false } ] }, { "qid": "MUM-2021-09-1010-Q011", "text": "How to remove exh vv seat assembly. I said welding old seat method and hydraullic jacking method.", "family": "Workshop & Welding", "subtopic": "Welding / NDT / Heat Treatment", "tid": "MUM-2021-09-1010", "tray": "new", "candidates": [ { "answer_id": "EXV-P02-001", "score": 0.6336193084716797, "sibling_score": 0.6336193084716797, "answer_score": 0.49901617765426637, "sibling_qid": "KOL-2016-09-3002-Q002", "sibling_text": "mtd to remove exh valve wen seat is stuck", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve overhaul & dismantling — procedure and precautions", "cross_family": true }, { "answer_id": "AVS-436-002", "score": 0.6265348196029663, "sibling_score": 0.6265348196029663, "answer_score": 0.5607681334018707, "sibling_qid": "KOL-2024-11-1789-Q008", "sibling_text": "ae cyl head ext vv seat and removal and renewal", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "02. AE valve seat — removal, fitting and renewal procedure", "cross_family": true }, { "answer_id": "EXHV-080-BF37-009", "score": 0.6078872680664062, "sibling_score": 0.6078872680664062, "answer_score": 0.5146521866321564, "sibling_qid": "MUM-2023-03-2165-Q004", "sibling_text": "how to remove exh and inlet valve seat without damaging", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "How do you remove an exhaust or inlet valve seat without damaging it?", "cross_family": true } ] }, { "qid": "MUM-2021-09-1010-Q012", "text": "How to remove valve guide? KEY ANS : Using mandrel Tool.", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Cover / Head", "tid": "MUM-2021-09-1010", "tray": "new", "candidates": [ { "answer_id": "AVS-436-002", "score": 0.5552829504013062, "sibling_score": 0.5552829504013062, "answer_score": 0.46636255383491515, "sibling_qid": "MUM-2026-05-3165-Q002", "sibling_text": "ae valve seat how to remove", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "02. AE valve seat — removal, fitting and renewal procedure", "cross_family": true }, { "answer_id": "PST-CSI-BF-014", "score": 0.5435051321983337, "sibling_score": 0.5435051321983337, "answer_score": null, "sibling_qid": "MUM-2021-09-1010-Q014", "sibling_text": "piston removal complete what if u dnt put liner locking tool", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Preparation and procedure for removing and overhauling a piston, and how long it takes", "cross_family": false }, { "answer_id": "PIST-CSI-B-001", "score": 0.5217588543891907, "sibling_score": 0.5217588543891907, "answer_score": null, "sibling_qid": "KOC-2022-12-1799-Q010", "sibling_text": "how to remv piston bottom end brng", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Main-engine piston — construction and the checks expected", "cross_family": false } ] }, { "qid": "MUM-2021-09-1010-Q013", "text": "What if u dont hv mandreal i said will chk the diameter of valve guide and will use brass rod teflon rod or other material of slightly bigger dia and will fabricate accordingly.", "family": "Cargo Ops - Tankers", "subtopic": "IG System", "tid": "MUM-2021-09-1010", "tray": "new", "candidates": [ { "answer_id": "GAU-GOU-002", "score": 0.5640898942947388, "sibling_score": 0.5640898942947388, "answer_score": null, "sibling_qid": "MUM-2026-05-3154-Q011", "sibling_text": "stub piece in sw line i said between valve and o b then asked how to measure thickness", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "How do you measure (gauge) wall thickness on a seawater-line stub piece?", "cross_family": true }, { "answer_id": "EXV-P02-002", "score": 0.5465121865272522, "sibling_score": 0.5465121865272522, "answer_score": null, "sibling_qid": "KOC-2023-03-0924-Q015", "sibling_text": "draw all clearance with the templete and how much burn out allowed in valve", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Seat/spindle grinding, templates, clearances (G1·G2·G3·F1) and seating-angle checks", "cross_family": true }, { "answer_id": "PRE-TEN-008", "score": 0.540034830570221, "sibling_score": 0.540034830570221, "answer_score": null, "sibling_qid": "CHE-2026-04-0502-Q003", "sibling_text": "ae con rod bolt new one before going to use how you do stretch free", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "New auxiliary-engine connecting-rod bolt — checking stretch-free condition before use", "cross_family": true } ] }, { "qid": "MUM-2021-09-1010-Q017", "text": "How will you come to knw the con rod bolt has elongated.", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Connecting Rod & Bolts", "tid": "MUM-2021-09-1010", "tray": "review", "candidates": [ { "answer_id": "CRB-002", "score": 0.6828154921531677, "sibling_score": 0.6828154921531677, "answer_score": 0.4607052147388458, "sibling_qid": "MUM-2025-07-1143-Q009", "sibling_text": "con rod bolts elongation how and when to check", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What checks and tests are carried out on connecting rod bolts? Why NDT, why check elongation, what is the maximum limit, and which section tends to shear off?", "cross_family": false }, { "answer_id": "CRB-001", "score": 0.6139804124832153, "sibling_score": 0.6139804124832153, "answer_score": null, "sibling_qid": "MUM-2026-03-2951-Q008", "sibling_text": "checks on con rod", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What checks are carried out on the connecting rod at decarbonisation? Explain the ovality and trueness checks — how many readings, at which positions, with what instrument, and the permissible limit.", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.5990222692489624, "sibling_score": 0.5990222692489624, "answer_score": 0.4465455025434494, "sibling_qid": "CHE-2026-05-0548-Q008S5", "sibling_text": "connecting rod bolt elongation check", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": true } ] }, { "qid": "MUM-2021-09-1010-Q018", "text": "While taking com rod ovality u have removed the bearings and assembled the caps and tightened with specified torque what if ur torque spanner is faulty how will u ensure that the bolts are tightned correctly?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Connecting Rod & Bolts", "tid": "MUM-2021-09-1010", "tray": "review", "candidates": [ { "answer_id": "CRB-002", "score": 0.6836668848991394, "sibling_score": 0.6836668848991394, "answer_score": null, "sibling_qid": "CHE-2025-11-0221-Q004", "sibling_text": "checks on conrod bolts", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What checks and tests are carried out on connecting rod bolts? Why NDT, why check elongation, what is the maximum limit, and which section tends to shear off?", "cross_family": false }, { "answer_id": "PRE-TEN-004", "score": 0.670283854007721, "sibling_score": 0.670283854007721, "answer_score": null, "sibling_qid": "CHE-2025-10-0446-Q001", "sibling_text": "you don t have torque wrench how you tight", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Tightening cylinder-head hydraulic bolts or nuts without a torque wrench", "cross_family": true }, { "answer_id": "TBR-TT-P02-002", "score": 0.6375530958175659, "sibling_score": 0.6375530958175659, "answer_score": null, "sibling_qid": "MUM-2026-02-2548-Q003", "sibling_text": "holding down bolt tighness check", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Checking tie rod tightness / slackness — stopped and running", "cross_family": true } ] }, { "qid": "MUM-2022-04-0010-Q002", "text": "how float on air vent prevents sea water ingress in tank through vent pipe", "family": "Auxiliary Equipment", "subtopic": "Vent Heads / Air Vents", "tid": "MUM-2022-04-0010", "tray": "new", "candidates": [ { "answer_id": "VENT-HD-008", "score": 0.6105275750160217, "sibling_score": 0.6105275750160217, "answer_score": 0.5542063921689987, "sibling_qid": "KOC-2024-10-0433-Q005", "sibling_text": "ballast tank vent arrangement", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Compare ballast, bunker and fuel tank vent-head arrangements and fittings", "cross_family": false }, { "answer_id": "VENT-HD-002", "score": 0.609688937664032, "sibling_score": 0.609688937664032, "answer_score": 0.5706225752830505, "sibling_qid": "KOC-2021-09-2025-Q007", "sibling_text": "ballast tank vent the diagram should have a float and flame arrestor and explain its working", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Ballast tank vent head (float + screen) — draw and explain", "cross_family": false }, { "answer_id": "VENT-HD-004", "score": 0.6006476283073425, "sibling_score": 0.6006476283073425, "answer_score": 0.5551777720451355, "sibling_qid": "KOC-2025-12-1088-Q002", "sibling_text": "tank air vent working i explained ball type air vent", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Ball-float type tank air vent head — construction and working", "cross_family": false } ] }, { "qid": "MUM-2022-04-0010-Q010", "text": "Latest amendment to Marpol annex 4", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "NOx / SOx / ODS", "tid": "MUM-2022-04-0010", "tray": "review", "candidates": [ { "answer_id": "AVIAMD-002", "score": 0.7151502966880798, "sibling_score": 0.7151502966880798, "answer_score": 0.5699639439582824, "sibling_qid": "KOL-2020-07-0418-Q010", "sibling_text": "latest amendment in marpol", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What are the latest amendments to MARPOL, covering both Annex I and Annex VI?", "cross_family": false }, { "answer_id": "AVIAMD-001", "score": 0.712638795375824, "sibling_score": 0.712638795375824, "answer_score": null, "sibling_qid": "KOL-2018-08-0211-Q005", "sibling_text": "latest amendment of marpol annex 6", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What are the latest amendments to MARPOL Annex VI, and when did they enter into force?", "cross_family": false }, { "answer_id": "SEW-DISCH-004", "score": 0.7048633098602295, "sibling_score": 0.7048633098602295, "answer_score": null, "sibling_qid": "MUM-2022-08-0039-Q007", "sibling_text": "new amendments in marpol annex 4", "sibling_family": "MARPOL - Annex IV (Sewage)", "via": "sibling", "answer_title": "4. Annex IV requirements, equipment, documents and recent amendments", "cross_family": true } ] }, { "qid": "MUM-2022-04-0011-Q001", "text": "Type of ships after class 4. How many ships?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2022-04-0011", "tray": "new", "candidates": [ { "answer_id": "LLST-AB-001", "score": 0.6013169884681702, "sibling_score": 0.6013169884681702, "answer_score": null, "sibling_qid": "KOC-2026-09-2198-Q001", "sibling_text": "type a and b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLC-P05-001", "score": 0.5524067282676697, "sibling_score": 0.5524067282676697, "answer_score": null, "sibling_qid": "KOL-2018-07-0201-Q001", "sibling_text": "how many ships after class 4 grt of them deck line how is it drawn wanted to know the location and distance", "sibling_family": "", "via": "sibling", "answer_title": "Freeboard, deck line, Plimsoll mark, assignment and scantling draft", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.5401591062545776, "sibling_score": 0.5401591062545776, "answer_score": null, "sibling_qid": "MUM-2026-02-1280-Q001", "sibling_text": "type of ship done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false } ] }, { "qid": "MUM-2022-04-0011-Q002", "text": "What is solas chap 12? Only wanted water ingress detector and their instalation height. What to do if you get alarm?", "family": "SOLAS - General (HOLD)", "subtopic": "Solas Chapter 12 - Bulk", "tid": "MUM-2022-04-0011", "tray": "review", "candidates": [ { "answer_id": "SOLAS12-BC-E-001", "score": 0.6807045340538025, "sibling_score": 0.6807045340538025, "answer_score": 0.556864982843399, "sibling_qid": "KOL-2022-04-0622-Q005", "sibling_text": "solas chapter 12 water ingress all regulations where alarm", "sibling_family": "", "via": "sibling", "answer_title": "Water ingress detection & alarm system (WIDAS) — SOLAS XII/12", "cross_family": false }, { "answer_id": "SOLAS12-BC-A-004", "score": 0.5446946620941162, "sibling_score": 0.5446946620941162, "answer_score": null, "sibling_qid": "KOC-2021-12-0044-Q003", "sibling_text": "solas chapter 12 explain said no of regulations stability damag stability excemptions about equilateral triangle water ingress alarm no crossquestion", "sibling_family": "", "via": "sibling", "answer_title": "The solid triangle mark and high-density-cargo restriction", "cross_family": false }, { "answer_id": "SOLAS-XII-BC-003", "score": 0.5439933001995086, "sibling_score": null, "answer_score": 0.5439933001995086, "sibling_qid": "", "sibling_text": "solas chapter xii regulation 12 hold ballast and dry space water ingress alarms applies to all bulk carriers regardless of build date existing ships by first survey after 1 jul 2004 each hold two levels 0 5 m above inner bottom and 15 of hold depth not more than 2 m detectors at aft end", "sibling_family": "", "via": "answer_title", "answer_title": "SOLAS Chapter XII Regulation 12 — hold, ballast and dry-space water ingress alarms", "cross_family": false } ] }, { "qid": "MUM-2022-04-0011-Q003", "text": "Is grain cargo fumigated?", "family": "Cargo Ops - Bulk Carriers", "subtopic": "Grain Code / Loading", "tid": "MUM-2022-04-0011", "tray": "new", "candidates": [ { "answer_id": "IMSBC-BULK-002", "score": 0.5643389821052551, "sibling_score": 0.5643389821052551, "answer_score": null, "sibling_qid": "MUM-2024-11-0219-Q006", "sibling_text": "liquification of cargo preventive measures", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Liquefaction, moisture content and TML", "cross_family": false }, { "answer_id": "BC-IMSBC-008", "score": 0.5189521908760071, "sibling_score": 0.5189521908760071, "answer_score": null, "sibling_qid": "KOC-2022-02-0062-Q006", "sibling_text": "green ammonia int how segregation of cargo in bulk carrier i explained about imsbc code", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "8. Segregation of bulk cargoes under the IMSBC Code", "cross_family": false }, { "answer_id": "BC-IMSBC-001", "score": 0.5136128664016724, "sibling_score": 0.5136128664016724, "answer_score": null, "sibling_qid": "CHE-2025-12-0097-Q006", "sibling_text": "what is there for bulk carrier cargo safety", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "1. Bulk carrier safety requirements — SOLAS Chapter XII and recent additions", "cross_family": false } ] }, { "qid": "MUM-2022-04-0011-Q005", "text": "Where is ship owner responsibility wrt repatriation mentioned in mlc?", "family": "ISM Code", "subtopic": "MLC 2006", "tid": "MUM-2022-04-0011", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-009", "score": 0.5683273673057556, "sibling_score": 0.5683273673057556, "answer_score": 0.41387125849723816, "sibling_qid": "CHE-2025-08-0426-Q009", "sibling_text": "ship owner abandoned the ship what will you do as per mlc i told financial security certificate for repartation", "sibling_family": "MLC", "via": "sibling", "answer_title": "Abandonment — financial security and repatriation", "cross_family": true }, { "answer_id": "CLC-CIV-B-003", "score": 0.5165722370147705, "sibling_score": 0.5165722370147705, "answer_score": null, "sibling_qid": "MUM-2026-04-0880-Q004", "sibling_text": "mlc what is shipowner liability", "sibling_family": "MLC", "via": "sibling", "answer_title": "LLMC: purpose, scope and limitation of maritime claims", "cross_family": true }, { "answer_id": "ISMNC-006", "score": 0.47514504194259644, "sibling_score": 0.47514504194259644, "answer_score": null, "sibling_qid": "MUM-2026-02-0741-Q004", "sibling_text": "ur ship has mnc what u will do", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Your ship has been issued a major non-conformity: what action do you take, what are the repercussions, and can the ship sail with it?", "cross_family": false } ] }, { "qid": "MUM-2022-04-0937-Q002", "text": "me specification MAN ME engien", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2022-04-0937", "tray": "new", "candidates": [ { "answer_id": "ALT-MTN-B-001", "score": 0.6036562323570251, "sibling_score": 0.6036562323570251, "answer_score": null, "sibling_qid": "MUM-2026-02-1281-Q001", "sibling_text": "main engine specification mc c", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Routine onboard alternator maintenance checks", "cross_family": false }, { "answer_id": "ENG-NOM-006", "score": 0.6016202569007874, "sibling_score": 0.6016202569007874, "answer_score": null, "sibling_qid": "CHE-2026-05-0585-Q001", "sibling_text": "main engine specification complete", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Short-form asks: SMC-C, LMC, and ME vs MC quickly", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.5663071274757385, "sibling_score": 0.5663071274757385, "answer_score": null, "sibling_qid": "MUM-2026-02-1272-Q003", "sibling_text": "me ae engine nomenclature", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false } ] }, { "qid": "MUM-2022-04-0937-Q003", "text": "ae specification MAN engine", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2022-04-0937", "tray": "new", "candidates": [ { "answer_id": "ENG-NOM-005", "score": 0.5865477919578552, "sibling_score": 0.5865477919578552, "answer_score": null, "sibling_qid": "MUM-2026-02-1272-Q003", "sibling_text": "me ae engine nomenclature", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false }, { "answer_id": "GOV-082-P01-002", "score": 0.5696713924407959, "sibling_score": 0.5696713924407959, "answer_score": null, "sibling_qid": "MUM-2026-09-3915-Q005", "sibling_text": "governor specification of ae", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Types of governor fitted on ships and how they differ", "cross_family": true }, { "answer_id": "ENG-NOM-006", "score": 0.5647624731063843, "sibling_score": 0.5647624731063843, "answer_score": null, "sibling_qid": "CHE-2026-05-0585-Q001", "sibling_text": "main engine specification complete", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Short-form asks: SMC-C, LMC, and ME vs MC quickly", "cross_family": false } ] }, { "qid": "MUM-2022-04-0937-Q004", "text": "Chocks of ME and AE different how ?", "family": "2-Stroke - Structure & Tie Rods", "subtopic": "ME/AE Chocks", "tid": "MUM-2022-04-0937", "tray": "new", "candidates": [ { "answer_id": "AEME-DIFF-001", "score": 0.5098079442977905, "sibling_score": 0.5098079442977905, "answer_score": null, "sibling_qid": "MUM-2026-02-1272-Q004", "sibling_text": "constructional difference between me and ae", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": true }, { "answer_id": "EMD-MEAE-001", "score": 0.48361408710479736, "sibling_score": 0.48361408710479736, "answer_score": 0.22082765847444533, "sibling_qid": "MUM-2026-01-1253-Q006", "sibling_text": "difference in foundations of me ae", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "1. ME vs AE foundation — rigid chocking against resilient mounting", "cross_family": true }, { "answer_id": "PSC-RO-P02-004", "score": 0.4481199383735657, "sibling_score": 0.4481199383735657, "answer_score": null, "sibling_qid": "MUM-2024-09-0205-Q008", "sibling_text": "different mou", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What are PSC MoUs, and what are the major regional MoUs?", "cross_family": true } ] }, { "qid": "MUM-2022-04-0937-Q005", "text": "fuel pump of ae and me different how", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "ME vs AE Fuel Pump Construction", "tid": "MUM-2022-04-0937", "tray": "review", "candidates": [ { "answer_id": "AEFP-471-006", "score": 0.7266236543655396, "sibling_score": 0.7266236543655396, "answer_score": 0.5181185632944106, "sibling_qid": "MUM-2026-04-2986-Q002", "sibling_text": "difference in fuel pump of me and ae from outside", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "What is the difference between main-engine and auxiliary-engine fuel pumps?", "cross_family": false }, { "answer_id": "FIS-221-004", "score": 0.6689059138298035, "sibling_score": 0.6689059138298035, "answer_score": null, "sibling_qid": "MUM-2025-05-0273-Q008", "sibling_text": "difference between conventional fuel pump and me engine fuel pump", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Conventional versus ME / electronically controlled injection", "cross_family": false }, { "answer_id": "FP-OVHL-001", "score": 0.6467511057853699, "sibling_score": 0.6467511057853699, "answer_score": null, "sibling_qid": "MUM-2025-12-1227-Q004", "sibling_text": "diff btw fuel pump of me and aux engine", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Aux-engine / Bosch jerk fuel pump — overhaul, checks, boxing up", "cross_family": false } ] }, { "qid": "MUM-2022-04-0937-Q006", "text": "what pressure of hyd oil and fuel oil for injection", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Injection System", "tid": "MUM-2022-04-0937", "tray": "review", "candidates": [ { "answer_id": "CR-248-002", "score": 0.684514582157135, "sibling_score": 0.684514582157135, "answer_score": 0.45196953415870667, "sibling_qid": "KOC-2026-03-1108-Q010", "sibling_text": "how in me engine fuel injection occurs fuel pump controlled by hydraulic pressure x pressure of hyd oil and fuel oil 250 bar and 1000 bar x how 250 bar generates 1000 bar area is much larger internal as second engineer how you will do a decarb expain detail", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How fuel is injected in electronically controlled ME / RT-flex engines — how rail or hydraulic pressure produces injection", "cross_family": false }, { "answer_id": "CR-248-001", "score": 0.6676483154296875, "sibling_score": 0.6676483154296875, "answer_score": null, "sibling_qid": "KOL-2022-01-1656-Q002", "sibling_text": "common rail fuel oil injection system details and pressure value how the fule quantity is controlled", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "The common rail fuel injection system — layout, working sequence, rail valves, timing & quantity control", "cross_family": false }, { "answer_id": "FPP-049-001", "score": 0.6349632143974304, "sibling_score": 0.6349632143974304, "answer_score": 0.4768830746412277, "sibling_qid": "MUM-2023-11-2211-Q003", "sibling_text": "what is fuel oil pressure at fuel pump", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "What pressure is developed at the fuel pump, and at injection?", "cross_family": false } ] }, { "qid": "MUM-2022-04-0938-Q002", "text": "main boiler specification", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2022-04-0938", "tray": "review", "candidates": [ { "answer_id": "BLR-CAP-BOILER-CAPACITY-RATING-006", "score": 0.7198952436447144, "sibling_score": 0.7198952436447144, "answer_score": 0.5429426312446594, "sibling_qid": "KOC-2026-05-0034-Q009", "sibling_text": "boiler specifications", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "State the boiler specifications relevant to rating/capacity.", "cross_family": true }, { "answer_id": "BLR-DRUM-002", "score": 0.6517029404640198, "sibling_score": 0.6517029404640198, "answer_score": null, "sibling_qid": "MUM-2026-06-3660-Q005", "sibling_text": "boiler type and boiler construction", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Steam-drum construction, material and plate manufacture, and construction-stage tests", "cross_family": true }, { "answer_id": "BLR-SURV-P02-004", "score": 0.6451890468597412, "sibling_score": 0.6451890468597412, "answer_score": null, "sibling_qid": "MUM-2026-06-3564-Q002", "sibling_text": "tests on boiler structure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": true } ] }, { "qid": "MUM-2022-04-0938-Q008", "text": "reduction gear specification (Helical gear)", "family": "General Marine Engineering", "subtopic": "Reduction Gear / Helical Gear", "tid": "MUM-2022-04-0938", "tray": "new", "candidates": [ { "answer_id": "RGEAR-001", "score": 0.5182677686214446, "sibling_score": 0.4821292757987976, "answer_score": 0.5182677686214446, "sibling_qid": "MUM-2025-08-0374-Q007", "sibling_text": "reduction factor", "sibling_family": "General Marine Engineering", "via": "answer_title", "answer_title": "Reduction factor / reduction ratio in reduction gearing", "cross_family": false }, { "answer_id": "CHAIN-TENS-B-003", "score": 0.510601818561554, "sibling_score": 0.510601818561554, "answer_score": null, "sibling_qid": "MUM-2026-05-3274-Q006", "sibling_text": "chain sprockets numbers and type spur or helical but spur not accepted", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Chain-drive arrangement — sprockets, idlers, links and chain case", "cross_family": true }, { "answer_id": "LATHE-TD-003", "score": 0.48067647218704224, "sibling_score": 0.48067647218704224, "answer_score": null, "sibling_qid": "MUM-2024-02-2222-Q005", "sibling_text": "you need to make 8 tpi threads on the shaft on lathe machine what will be the gearing ratio parts of lathe machine 4b pass 6 repeat", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Thread cutting — lathe, taps & dies, TPI and tapping-drill size", "cross_family": true } ] }, { "qid": "MUM-2022-04-0938-Q009", "text": "why helical", "family": "General Marine Engineering", "subtopic": "Reduction Gear / Helical Gear", "tid": "MUM-2022-04-0938", "tray": "new", "candidates": [ { "answer_id": "SHAFT-CPP-001", "score": 0.41469305753707886, "sibling_score": 0.41469305753707886, "answer_score": null, "sibling_qid": "MUM-2026-03-1312-Q005", "sibling_text": "propeller curve and it s propose", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "1. Propeller curve & load diagram", "cross_family": false }, { "answer_id": "SHAFT-CPP-005", "score": 0.38305720686912537, "sibling_score": 0.38305720686912537, "answer_score": null, "sibling_qid": "KOC-2024-12-0482-Q006", "sibling_text": "why propeller efficiency is more in ahead direction not in astern direction", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "5. Propeller types, design criteria & latest developments", "cross_family": false }, { "answer_id": "STAB-D-001", "score": 0.3775109052658081, "sibling_score": 0.3775109052658081, "answer_score": null, "sibling_qid": "MUM-2026-05-3244-Q003", "sibling_text": "gz curve angle of heel unit why in radian", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "General Ship Stability - How I Open Any Stability Question", "cross_family": true } ] }, { "qid": "MUM-2022-04-0938-Q010", "text": "Turbine vibration how measured ? ", "family": "Steam & Turbine Plant", "subtopic": "Turbine vibration monitoring / protection", "tid": "MUM-2022-04-0938", "tray": "new", "candidates": [ { "answer_id": "VIB-BAL-B-002", "score": 0.6212700009346008, "sibling_score": 0.6212700009346008, "answer_score": null, "sibling_qid": "KOL-2026-07-4277-Q005", "sibling_text": "trosional and axial vibration with location decider liner cranck indication", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Axial vibration and the axial vibration damper", "cross_family": true }, { "answer_id": "VIB-BAL-A-005", "score": 0.6175229549407959, "sibling_score": 0.6175229549407959, "answer_score": 0.5884467601776123, "sibling_qid": "CHE-2025-08-0411-Q009", "sibling_text": "how do you measure vibration", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "VIB-A-05 — Measuring and monitoring engine vibration — instruments and parameters", "cross_family": true }, { "answer_id": "TC-CONST-003", "score": 0.6083581447601318, "sibling_score": 0.6083581447601318, "answer_score": null, "sibling_qid": "MUM-2026-05-3081-Q002", "sibling_text": "what is condition monitoring in t c how to obtain vibration of it", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "General construction and turbocharger arrangement", "cross_family": true } ] }, { "qid": "MUM-2022-04-2130-Q003", "text": "Evaporator outlet temp is 14C and cabin temp is 30C ,reasons for less cooling", "family": "Refrigeration & AC", "subtopic": "Refrigeration Faults / Checks", "tid": "MUM-2022-04-2130", "tray": "new", "candidates": [ { "answer_id": "REFR-FLT-003", "score": 0.643710732460022, "sibling_score": 0.643710732460022, "answer_score": null, "sibling_qid": "MUM-2026-02-1259-Q009", "sibling_text": "ac is not cooling down reasons sufficient refrigerant present", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Refrigerant leakage or loss: detect, confirm, respond, and the record-keeping", "cross_family": false }, { "answer_id": "REFR-FLT-001", "score": 0.6094355583190918, "sibling_score": 0.6094355583190918, "answer_score": 0.4970394730567932, "sibling_qid": "KOL-2019-10-3279-Q005", "sibling_text": "cooling not taking place in refer what problems not basic ones", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Provision/cold room temperature: will not pull down, runs too low, or will not hold", "cross_family": false }, { "answer_id": "ICAC-299-011", "score": 0.5983723998069763, "sibling_score": 0.5983723998069763, "answer_score": null, "sibling_qid": "CHE-2026-03-0359-Q002", "sibling_text": "high temp in ac compressor", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Discharge temperature rising with cooling-water flow normal", "cross_family": false } ] }, { "qid": "MUM-2022-04-2130-Q004", "text": "How to change the temperature setting for meat room and fish room", "family": "Refrigeration & AC", "subtopic": "Comfort Zone", "tid": "MUM-2022-04-2130", "tray": "review", "candidates": [ { "answer_id": "RAC-MAT-320-001", "score": 0.7070054411888123, "sibling_score": 0.7070054411888123, "answer_score": 0.5178644835948943, "sibling_qid": "KOL-2024-09-3710-Q004", "sibling_text": "how different temperatures maintained in four different room such as fish meat veg dairy room", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "1. Holding different room temperatures — meat, fish, vegetable, dairy", "cross_family": false }, { "answer_id": "REFR-FLT-001", "score": 0.6667670011520386, "sibling_score": 0.6667670011520386, "answer_score": null, "sibling_qid": "KOL-2021-11-3489-Q006", "sibling_text": "fish room temperature why not maintain", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Provision/cold room temperature: will not pull down, runs too low, or will not hold", "cross_family": false }, { "answer_id": "REEF-PREP-001", "score": 0.6552720665931702, "sibling_score": 0.6552720665931702, "answer_score": 0.5067025572061539, "sibling_qid": "KOL-2026-01-2953-Q005", "sibling_text": "how meat room temperature is controlled", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Provision (domestic) refrigerated rooms — arrangement and temperature control", "cross_family": false } ] }, { "qid": "MUM-2022-07-0012-Q004", "text": "COFS have u heard ? What is this ? Wer mentioned ? Who is responsible for this liability ?", "family": "Maritime Law & Certificates", "subtopic": "COFS", "tid": "MUM-2022-07-0012", "tray": "new", "candidates": [ { "answer_id": "CLC-CIV-B-002", "score": 0.4836879074573517, "sibling_score": 0.4836879074573517, "answer_score": 0.2992644429206848, "sibling_qid": "KOC-2025-08-0642-Q019", "sibling_text": "any other liability convention you know", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "The civil-liability map: which compensation convention applies to what", "cross_family": true }, { "answer_id": "CLC-CIV-B-001", "score": 0.4651150405406952, "sibling_score": 0.4651150405406952, "answer_score": 0.2788958132266998, "sibling_qid": "KOL-2025-10-1102-Q008", "sibling_text": "liability conventions", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "The conventions for oil-pollution compensation: CLC, Fund, Supplementary Fund", "cross_family": true }, { "answer_id": "ISPS-P03-001", "score": 0.45389848947525024, "sibling_score": 0.45389848947525024, "answer_score": null, "sibling_qid": "MUM-2026-03-0805-Q005", "sibling_text": "cso responsibility", "sibling_family": "ISPS", "via": "sibling", "answer_title": "Company Security Officer (CSO): duties, functions and responsibilities", "cross_family": true } ] }, { "qid": "MUM-2022-07-0012-Q005", "text": "Regarding launching what are regulations about lifeboat ( x question degree of rolling and pitching what u r mentioning is about lifeboat or vessel ?)", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Lifeboat", "tid": "MUM-2022-07-0012", "tray": "review", "candidates": [ { "answer_id": "LB-D-001", "score": 0.7043442130088806, "sibling_score": 0.7043442130088806, "answer_score": null, "sibling_qid": "KOL-2022-04-0622-Q001", "sibling_text": "lifeboat launching solas requirements", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Davit-launched lifeboat — lowering & launching (drill and actual emergency)", "cross_family": false }, { "answer_id": "LDL-617-004", "score": 0.6940652132034302, "sibling_score": 0.6940652132034302, "answer_score": 0.5697283565998077, "sibling_qid": "KOL-2021-07-2468-Q005", "sibling_text": "free fall lifeboat lowering arrangement checks if port doesn t allow to lower it full", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Free-fall lifeboat — launch, and checks when the port will not allow a full drop", "cross_family": false }, { "answer_id": "LDL-617-003", "score": 0.6862945556640625, "sibling_score": 0.6862945556640625, "answer_score": 0.5526987850666046, "sibling_qid": "MUM-2024-07-0186-Q005", "sibling_text": "type of lifeboat lifeboat launching procedure and checks", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat types and the launching procedure and checks", "cross_family": false } ] }, { "qid": "MUM-2022-07-0012-Q006", "text": "Launching procedure ?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Lifeboat", "tid": "MUM-2022-07-0012", "tray": "review", "candidates": [ { "answer_id": "LB-D-001", "score": 0.8388009667396545, "sibling_score": 0.8388009667396545, "answer_score": null, "sibling_qid": "KOC-2022-12-0120-Q009", "sibling_text": "procedure to launch", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Davit-launched lifeboat — lowering & launching (drill and actual emergency)", "cross_family": false }, { "answer_id": "LB-SURV-C-010", "score": 0.7280557751655579, "sibling_score": 0.7280557751655579, "answer_score": 0.3600828394293785, "sibling_qid": "MUM-2026-08-3837-Q007", "sibling_text": "l b launching procedure", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Launching / lowering procedure and precautions (davit-launched)", "cross_family": false }, { "answer_id": "LRHR-B-008", "score": 0.549328088760376, "sibling_score": 0.549328088760376, "answer_score": 0.32928176820278166, "sibling_qid": "KOC-2023-09-0218-Q013", "sibling_text": "life raft launching procedure", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Take me through launching and inflating the liferaft manually.", "cross_family": false } ] }, { "qid": "MUM-2022-07-0012-Q008", "text": "How will you come to know wether ISM is being followed or not onboard ? Documents as per ISM ?? 8 . What is NC ? What u will do if auditor gives u MLC ?", "family": "ISM Code", "subtopic": "ISM / SMS / Audit", "tid": "MUM-2022-07-0012", "tray": "review", "candidates": [ { "answer_id": "ISM-SMC-B-001", "score": 0.667411744594574, "sibling_score": 0.667411744594574, "answer_score": null, "sibling_qid": "MUM-2022-12-0074-Q012", "sibling_text": "ism audit procedure types of doc types of smc when who issued nc mnc define objective evidence", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "SMC — purpose, contents, issue and validity", "cross_family": false }, { "answer_id": "ISM-AUDIT-P01-002", "score": 0.5807567238807678, "sibling_score": 0.5807567238807678, "answer_score": null, "sibling_qid": "KOL-2019-12-0360-Q005", "sibling_text": "additional audit as per ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM/SMS audits and verifications — types, who conducts them, intervals and validity", "cross_family": false }, { "answer_id": "ISM-SMC-B-003", "score": 0.5718579292297363, "sibling_score": 0.5718579292297363, "answer_score": null, "sibling_qid": "MUM-2026-07-3676-Q008", "sibling_text": "ism smc how many audits", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "SMC audit cycle — initial, intermediate, renewal, additional", "cross_family": false } ] }, { "qid": "MUM-2022-07-0013-Q005", "text": "What is your understanding of MLC 2006", "family": "MLC", "subtopic": "MLC / DMLC / Work-Rest", "tid": "MUM-2022-07-0013", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-007", "score": 0.4625626802444458, "sibling_score": 0.4625626802444458, "answer_score": null, "sibling_qid": "MUM-2026-02-0734-Q007", "sibling_text": "mlc 2006 detainable deficiency", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false }, { "answer_id": "MLC-WRH-B-006", "score": 0.3795406222343445, "sibling_score": 0.3795406222343445, "answer_score": null, "sibling_qid": "MUM-2026-07-3680-Q005", "sibling_text": "what is mlc certificate under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false }, { "answer_id": "MLC-WRH-B-002", "score": 0.37374749779701233, "sibling_score": 0.37374749779701233, "answer_score": null, "sibling_qid": "MUM-2022-07-0027-Q005", "sibling_text": "mlc 2006 wages rest hours", "sibling_family": "MLC", "via": "sibling", "answer_title": "Work and rest hours under MLC — the criteria, the weekly limit, the intervals", "cross_family": false } ] }, { "qid": "MUM-2022-07-0013-Q009", "text": "What is free surface effect", "family": "Ship Construction & Stability", "subtopic": "Static / Dynamic Stability/damage stability", "tid": "MUM-2022-07-0013", "tray": "review", "candidates": [ { "answer_id": "FSE-P01-001", "score": 0.6843571066856384, "sibling_score": 0.6843571066856384, "answer_score": 0.4609373569488525, "sibling_qid": "MUM-2026-01-0713-Q004", "sibling_text": "explain free surface effect", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "What is free surface effect? Explain the basic concept.", "cross_family": false }, { "answer_id": "FSE-P02-001", "score": 0.47003315687179564, "sibling_score": null, "answer_score": 0.47003315687179564, "sibling_qid": "", "sibling_text": "reducing and correcting free surface effect in practice fse is a virtual rise of g i e a virtual loss of gm m is fixed by the waterplane and does not move free surface correction rise of g i tank w in metres the liquid density is in it not just geometry", "sibling_family": "", "via": "answer_title", "answer_title": "Reducing and correcting free surface effect in practice", "cross_family": false }, { "answer_id": "FSE-P03-001", "score": 0.4620447695255279, "sibling_score": null, "answer_score": 0.4620447695255279, "sibling_qid": "", "sibling_text": "1 draw and explain free surface effect a free surface exists whenever a tank is slack not empty not pressed up on heeling liquid shifts to the low side the wedge transfer moves the liquid s centroid", "sibling_family": "", "via": "answer_title", "answer_title": "1. Draw and explain free surface effect", "cross_family": false } ] }, { "qid": "MUM-2022-07-0014-Q010", "text": "Isps code", "family": "ISPS", "subtopic": "ISPS Code / Security Level", "tid": "MUM-2022-07-0014", "tray": "review", "candidates": [ { "answer_id": "ISPS-SL-001", "score": 0.7833240032196045, "sibling_score": 0.7833240032196045, "answer_score": 0.38912703692913053, "sibling_qid": "KOL-2023-08-0762-Q005", "sibling_text": "isps code", "sibling_family": "ISPS", "via": "sibling", "answer_title": "The ISPS Code — purpose, scope and the SOLAS link", "cross_family": false }, { "answer_id": "ISPS-OV-001", "score": 0.7488355040550232, "sibling_score": 0.7488355040550232, "answer_score": 0.4004838168621063, "sibling_qid": "MUM-2025-09-0453-Q001", "sibling_text": "isps code in detail", "sibling_family": "ISPS", "via": "sibling", "answer_title": "ISPS Code: what it is, structure and key elements", "cross_family": false }, { "answer_id": "ISPS-SL-002", "score": 0.7295778393745422, "sibling_score": 0.7295778393745422, "answer_score": null, "sibling_qid": "KOL-2022-10-0689-Q046", "sibling_text": "isps code elements in this code describe", "sibling_family": "ISPS", "via": "sibling", "answer_title": "Elements, contents, functional requirements, training and equipment", "cross_family": false } ] }, { "qid": "MUM-2022-07-0015-Q001", "text": "Difference between flag and RO", "family": "IMO Structure & Conventions", "subtopic": "IMO / PSC / Codes", "tid": "MUM-2022-07-0015", "tray": "new", "candidates": [ { "answer_id": "IACS-324-003", "score": 0.6059712171554565, "sibling_score": 0.6059712171554565, "answer_score": null, "sibling_qid": "KOC-2023-12-0255-Q002", "sibling_text": "how ro is recognized by any flag state steps", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "3. What is a Recognized Organization, how is it recognized by a flag State, and how can a classification society become one?", "cross_family": true }, { "answer_id": "PSC-SURV-P01-003", "score": 0.5404249429702759, "sibling_score": 0.5404249429702759, "answer_score": 0.35635303556919096, "sibling_qid": "KOL-2021-07-0529-Q004", "sibling_text": "diff between ro and class", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the difference between a Recognised Organisation (RO) and a classification society?", "cross_family": true }, { "answer_id": "IACS-324-005", "score": 0.5040105581283569, "sibling_score": 0.5040105581283569, "answer_score": null, "sibling_qid": "KOC-2024-01-0269-Q011", "sibling_text": "diffrence between class and ro", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "5. What is the difference between a classification society, a Recognized Organization, and statutory certification?", "cross_family": true } ] }, { "qid": "MUM-2022-07-0015-Q002", "text": "Difference between flag and psc", "family": "IMO Structure & Conventions", "subtopic": "IMO / PSC / Codes", "tid": "MUM-2022-07-0015", "tray": "new", "candidates": [ { "answer_id": "FLAG-ST-003", "score": 0.6449242830276489, "sibling_score": 0.6449242830276489, "answer_score": 0.312607604265213, "sibling_qid": "KOC-2025-03-0556-Q005", "sibling_text": "psc and flag state difference", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Flag state vs port state / PSC / PSI vs class vs coastal state", "cross_family": true }, { "answer_id": "PSC-SURV-P01-004", "score": 0.478570818901062, "sibling_score": 0.478570818901062, "answer_score": null, "sibling_qid": "KOL-2025-09-1055-Q005", "sibling_text": "difference between flag state costal state and psc", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the difference between flag State, port State and coastal State control?", "cross_family": true }, { "answer_id": "FLAG-ST-001", "score": 0.44232431054115295, "sibling_score": 0.44232431054115295, "answer_score": null, "sibling_qid": "KOC-2024-01-0286-Q005", "sibling_text": "role of flagstate", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Flag State — authority, role, duties and requirements", "cross_family": true } ] }, { "qid": "MUM-2022-07-0015-Q003", "text": "What gives power to psc to carry out inspection, name of the chapters", "family": "IMO Structure & Conventions", "subtopic": "IMO / PSC / Codes", "tid": "MUM-2022-07-0015", "tray": "new", "candidates": [ { "answer_id": "PSC-003", "score": 0.6306335926055908, "sibling_score": 0.6306335926055908, "answer_score": 0.37951124757528304, "sibling_qid": "MUM-2026-05-3313-Q004", "sibling_text": "inspections under psc", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "3. What the PSCO checks after coming aboard, and how the inspection is conducted", "cross_family": true }, { "answer_id": "PSC-RO-P02-003", "score": 0.5997766852378845, "sibling_score": 0.5997766852378845, "answer_score": 0.47270106971263887, "sibling_qid": "KOL-2018-04-0172-Q001", "sibling_text": "instrument under imo which gives power to psc to conduct inspection", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What gives PSC its authority to inspect, and what references are used?", "cross_family": true }, { "answer_id": "PSC-SURV-P01-002", "score": 0.5951782464981079, "sibling_score": 0.5951782464981079, "answer_score": null, "sibling_qid": "MUM-2024-08-1457-Q016", "sibling_text": "cic inspection under psc", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is a Concentrated Inspection Campaign (CIC) under PSC?", "cross_family": true } ] }, { "qid": "MUM-2022-07-0015-Q013", "text": "IGC code chapters and explain", "family": "Cargo Ops - Gas Carriers", "subtopic": "IGC / Gas Carrier Safety", "tid": "MUM-2022-07-0015", "tray": "review", "candidates": [ { "answer_id": "IGC-GAS-002", "score": 0.7378191351890564, "sibling_score": 0.7378191351890564, "answer_score": null, "sibling_qid": "KOC-2026-08-2157-Q002", "sibling_text": "chapters of igc code", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "The IGC Code — status, scope, which ships it governs, chapter structure", "cross_family": false }, { "answer_id": "IGC-IGF-003", "score": 0.5528371334075928, "sibling_score": 0.5528371334075928, "answer_score": null, "sibling_qid": "CHE-2026-08-3877-Q002", "sibling_text": "explain what the igc code says", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "IGC Code — scope and which gas tankers come under it", "cross_family": true }, { "answer_id": "BCH-IBC-A-002", "score": 0.5277395248413086, "sibling_score": 0.5277395248413086, "answer_score": null, "sibling_qid": "MUM-2025-09-0443-Q004", "sibling_text": "ibc code chapt 17 18 explain in brief", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "The IBC Code — scope, purpose and application", "cross_family": true } ] }, { "qid": "MUM-2022-07-0016-Q002", "text": "marpol annex 6", "family": "MARPOL - Annex I (Oil)", "subtopic": "Oil Discharge Criteria", "tid": "MUM-2022-07-0016", "tray": "review", "candidates": [ { "answer_id": "AVI-SCOPE-004", "score": 0.7617496848106384, "sibling_score": 0.7617496848106384, "answer_score": null, "sibling_qid": "MUM-2026-03-0799-Q003", "sibling_text": "marpol annex 6", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Explain MARPOL Annex VI: purpose, scope, chapters/regulations and main onboard requirements.", "cross_family": false }, { "answer_id": "AVI-SCOPE-002", "score": 0.7204998135566711, "sibling_score": 0.7204998135566711, "answer_score": null, "sibling_qid": "KOL-2022-01-0591-Q006", "sibling_text": "marpol anex 6", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Explain the purpose and scope of MARPOL Annex VI.", "cross_family": true }, { "answer_id": "MARPOL-OV-003", "score": 0.715941846370697, "sibling_score": 0.715941846370697, "answer_score": null, "sibling_qid": "MUM-2026-09-3916-Q003", "sibling_text": "marpol annexes all", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "General overview of MARPOL and all annexes", "cross_family": false } ] }, { "qid": "MUM-2022-07-0016-Q006", "text": "MLC CHAPTERS", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2022-07-0016", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.5402634739875793, "sibling_score": 0.5402634739875793, "answer_score": null, "sibling_qid": "KOC-2026-05-2135-Q011", "sibling_text": "mlc titles explain title 1 explain dmlc part 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "ISM-ELEM-003", "score": 0.487667977809906, "sibling_score": 0.487667977809906, "answer_score": null, "sibling_qid": "KOC-2026-10-2218-Q007", "sibling_text": "ism all chapters", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": true }, { "answer_id": "SOLAS12-C-001", "score": 0.4711877107620239, "sibling_score": 0.4711877107620239, "answer_score": null, "sibling_qid": "KOC-2026-01-0788-Q005", "sibling_text": "solas chapter xii and how many chapters", "sibling_family": "", "via": "sibling", "answer_title": "Explain SOLAS Chapter XII for bulk carriers — oral-exam overview", "cross_family": false } ] }, { "qid": "MUM-2022-07-0017-Q003", "text": "Type of ships?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2022-07-0017", "tray": "review", "candidates": [ { "answer_id": "LLST-AB-001", "score": 0.8284794688224792, "sibling_score": 0.8284794688224792, "answer_score": 0.5265103876590729, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.7941863536834717, "sibling_score": 0.7941863536834717, "answer_score": 0.5289253354072571, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.7894187569618225, "sibling_score": 0.7894187569618225, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false } ] }, { "qid": "MUM-2022-07-0017-Q013", "text": "Checks on Engine as per SEQ (or SAFCON, dono mein se ek tha) survey.", "family": "Surveys - Statutory", "subtopic": "Sample Preparation - Main Engine Survey", "tid": "MUM-2022-07-0017", "tray": "new", "candidates": [ { "answer_id": "SEQ-330-001", "score": 0.5926591753959656, "sibling_score": 0.5926591753959656, "answer_score": null, "sibling_qid": "MUM-2026-06-3625-Q004", "sibling_text": "seq survey what all checks to be done", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Safety Equipment survey — what it is, its scope, and what is checked", "cross_family": false }, { "answer_id": "SVY-SCOPE-007", "score": 0.5850434899330139, "sibling_score": 0.5850434899330139, "answer_score": 0.40145208090543744, "sibling_qid": "MUM-2026-02-1967-Q007", "sibling_text": "what all to be check on main engine in the survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "How should the Main Engine be prepared for a safety survey?", "cross_family": false }, { "answer_id": "SVY-SCOPE-002", "score": 0.5387036204338074, "sibling_score": 0.5387036204338074, "answer_score": 0.40133076608181, "sibling_qid": "MUM-2023-01-0079-Q004", "sibling_text": "what items to check during safcon survey in engine room", "sibling_family": "Surveys - 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{ "answer_id": "FLR-WFB-P01-003", "score": 0.7343317866325378, "sibling_score": 0.7343317866325378, "answer_score": 0.586106339097023, "sibling_qid": "CHE-2026-02-0110-Q005", "sibling_text": "solid floor and bracket floor", "sibling_family": "", "via": "sibling", "answer_title": "Solid floor compared with the bracket (plain) floor", "cross_family": false }, { "answer_id": "FLR-WFB-P01-002", "score": 0.6523432731628418, "sibling_score": 0.6523432731628418, "answer_score": 0.4500074714422226, "sibling_qid": "KOC-2026-05-0035-Q002", "sibling_text": "solid floor plate", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "The solid floor — what it is, where it is fitted, its components", "cross_family": false }, { "answer_id": "FLR-WFB-P01-001", "score": 0.49711881279945375, "sibling_score": null, "answer_score": 0.49711881279945375, "sibling_qid": "", "sibling_text": "floors what they are the types and where they are fitted transverse vertical plate member at a frame runs centre girder to margin plate supports the inner bottom tank top and stiffens the bottom transversely", "sibling_family": "", "via": "answer_title", "answer_title": "Floors — what they are, the types, and where they are fitted", "cross_family": false } ] }, { "qid": "MUM-2022-07-0021-Q009", "text": "stresses on ship , and arrangement for each stress , global and local stress, panting stringer and panting beam difference, stealer plate.", "family": "Ship Construction & Stability", "subtopic": "", "tid": "MUM-2022-07-0021", "tray": "new", "candidates": [ { "answer_id": "STRSTR-298-001", "score": 0.5901542901992798, "sibling_score": 0.5901542901992798, "answer_score": null, "sibling_qid": "KOL-2025-07-0982-Q002", "sibling_text": "types of stresses in ship", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "What is stress, and what types of stress are commonly discussed in ships?", "cross_family": true }, { "answer_id": "PPS-230-002", "score": 0.5803041458129883, "sibling_score": 0.5803041458129883, "answer_score": 0.5148569196462631, "sibling_qid": "KOL-2019-10-0334-Q005", "sibling_text": "panting stringer and diagram of forward portion of ship", "sibling_family": "", "via": "sibling", "answer_title": "Panting beams and panting stringers: purpose in the forward structure", "cross_family": false }, { "answer_id": "PPS-230-006", "score": 0.57084059715271, "sibling_score": 0.57084059715271, "answer_score": null, "sibling_qid": "KOC-2024-02-0306-Q001", "sibling_text": "forward construction of ship and panting stringer", "sibling_family": "", "via": "sibling", "answer_title": "Fore-end / fore-peak structure: draw and describe", "cross_family": false } ] }, { "qid": "MUM-2022-07-0023-Q001", "text": "Types of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2022-07-0023", "tray": "review", "candidates": [ { "answer_id": "LLST-AB-001", "score": 0.8170881271362305, "sibling_score": 0.8170881271362305, "answer_score": 0.5335115373134612, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.7936882376670837, "sibling_score": 0.7936882376670837, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.7862745523452759, "sibling_score": 0.7862745523452759, "answer_score": 0.5277353405952453, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2022-07-0023-Q002", "text": "Types of engine", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2022-07-0023", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.7228509783744812, "sibling_score": 0.7228509783744812, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.7153037190437317, "sibling_score": 0.7153037190437317, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-001", "score": 0.4480996191501617, "sibling_score": null, 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Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "MUM-2022-07-0023-Q003", "text": "How many containers carry", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2022-07-0023", "tray": "new", "candidates": [ { "answer_id": "CONT-FIRE-FINAL-1-007", "score": 0.5509624481201172, "sibling_score": 0.5509624481201172, "answer_score": null, "sibling_qid": "MUM-2025-10-0544-Q003", "sibling_text": "3 container size dimensions", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Standard container sizes and dimensions", "cross_family": true }, { "answer_id": "CONT-FIRE-FINAL-1-005", "score": 0.5457994937896729, "sibling_score": 0.5457994937896729, "answer_score": null, "sibling_qid": "MUM-2024-09-0210-Q006", "sibling_text": "tiers of container on deck", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Container ship stability and on-deck tier loading", "cross_family": true }, { "answer_id": "DB-TORBOX-B-003", "score": 0.5448361039161682, "sibling_score": 0.5448361039161682, "answer_score": null, "sibling_qid": "CHE-2026-04-0150-Q001", "sibling_text": "type of ship sailed container", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "What is a torsion box — definition and construction", "cross_family": false } ] }, { "qid": "MUM-2022-07-0023-Q004", "text": "What is TEU", "family": "Cargo Ops - Containers", "subtopic": "TEU", "tid": "MUM-2022-07-0023", "tray": "new", "candidates": [ { "answer_id": "TEV-TXV-001", "score": 0.4653184413909912, "sibling_score": 0.4653184413909912, "answer_score": null, "sibling_qid": "MUM-2026-05-3256-Q004", "sibling_text": "tev types of tev", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Types of expansion valve", "cross_family": true }, { "answer_id": "TEV-TXV-002", "score": 0.45256564021110535, "sibling_score": 0.45256564021110535, "answer_score": null, "sibling_qid": "CHE-2025-08-0421-Q003", "sibling_text": "explain tev working", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "TEV / TXV — purpose, construction, location and working", "cross_family": true }, { "answer_id": "TEV-TXV-004", "score": 0.4454096555709839, "sibling_score": 0.4454096555709839, "answer_score": null, "sibling_qid": "KOC-2023-02-1234-Q014", "sibling_text": "explain electronic tev", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Electronic expansion valve (electronic TEV)", "cross_family": true } ] }, { "qid": "MUM-2022-07-0023-Q005", "text": "What is FEU", "family": "Cargo Ops - Containers", "subtopic": "TEU", "tid": "MUM-2022-07-0023", "tray": "new", "candidates": [ { "answer_id": "FVE-BF061-002", "score": 0.42673003673553467, "sibling_score": 0.42673003673553467, "answer_score": null, "sibling_qid": "MUM-2025-12-2896-Q002", "sibling_text": "full form of fire", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "What is the fire triangle, the fire rectangle and the fire tetrahedron?", "cross_family": true }, { "answer_id": "MIB-B-001", "score": 0.4018210768699646, "sibling_score": 0.4018210768699646, "answer_score": null, "sibling_qid": "KOL-2023-08-2673-Q005", "sibling_text": "4 what is fet", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "MOSFET, FET and JFET — construction, operation and where they are used", "cross_family": true }, { "answer_id": "FSE-P01-001", "score": 0.40048307180404663, "sibling_score": 0.40048307180404663, "answer_score": null, "sibling_qid": "KOL-2016-08-0009-Q003", "sibling_text": "what is f s e", "sibling_family": "", "via": "sibling", "answer_title": "What is free surface effect? 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"sibling_text": "4 failsafematic", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Pneumatic control: nozzle-flapper, DP, actuators and fail-safe", "cross_family": true } ] }, { "qid": "MUM-2022-07-0024-Q001", "text": "Status of other functions. Which attempt for fn3? Preparatory course from where?", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2022-07-0024", "tray": "new", "candidates": [ { "answer_id": "LLC-SUR-POA-3-FINAL-001", "score": 0.46636825799942017, "sibling_score": 0.46636825799942017, "answer_score": null, "sibling_qid": "MUM-2025-09-0469-Q005", "sibling_text": "condition of assignment few x questions then said we will switch to other fn", "sibling_family": "", "via": "sibling", "answer_title": "Conditions of assignment of freeboard", "cross_family": false }, { "answer_id": "SOFT-START-P01-001", "score": 0.4453602433204651, "sibling_score": 0.4453602433204651, "answer_score": null, "sibling_qid": "KOC-2022-12-0121-Q018", "sibling_text": "soft starter told not prepared fn", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Soft Starter — Definition, Purpose and Working", "cross_family": true }, { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.43818122148513794, "sibling_score": 0.43818122148513794, "answer_score": null, "sibling_qid": "MUM-2026-01-1252-Q001", "sibling_text": "status of results oral written exam", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": false } ] }, { "qid": "MUM-2022-07-0024-Q004", "text": "Constructional difference between oil tanker and bulk carrier. I said hatches open in a bulk carrier and hence deck needs additional strengthening in the form of stool spaces. (I haven't sailed on tankers, still asked this).", "family": "Ship Construction & Stability", "subtopic": "", "tid": "MUM-2022-07-0024", "tray": "review", "candidates": [ { "answer_id": "SOLAS12-BC-F-002", "score": 0.7375138998031616, "sibling_score": 0.7375138998031616, "answer_score": null, "sibling_qid": "KOL-2024-10-0873-Q002", "sibling_text": "constructional difference between bulk carrier and oil tanker holds", "sibling_family": "", "via": "sibling", "answer_title": "Constructional features & structural peculiarity (incl. vs tanker holds)", "cross_family": false }, { "answer_id": "BHD-TYPE-A-003", "score": 0.7275707721710205, "sibling_score": 0.7275707721710205, "answer_score": null, "sibling_qid": "KOL-2026-02-1170-Q003", "sibling_text": "in tanker types of bulkheads", "sibling_family": "", "via": "sibling", "answer_title": "Tanker and cargo-tank bulkheads — transverse and longitudinal arrangement", "cross_family": false }, { "answer_id": "SOLAS12-BC-F-001", "score": 0.7156182527542114, "sibling_score": 0.7156182527542114, "answer_score": null, "sibling_qid": "KOL-2017-10-0119-Q001", "sibling_text": "additional safety of bulk carrier difference between the bulkhead of foremost two bulkhead with other bulkhead", "sibling_family": "", "via": "sibling", "answer_title": "Barriers, foremost bulkheads, hatchways & double-side skin", "cross_family": false } ] }, { "qid": "MUM-2022-07-0024-Q007", "text": "Why bulbous bow used? Wanted resistance reduces as angle of entrance decreases and bow wave reduces.", "family": "", "subtopic": "Bulbous Bow", "tid": "MUM-2022-07-0024", "tray": "new", "candidates": [ { "answer_id": "PPS-230-006", "score": 0.5868425965309143, "sibling_score": 0.5868425965309143, "answer_score": null, "sibling_qid": "MUM-2026-04-0896-Q004", "sibling_text": "bulbous bow how it is attached to ship why it is attached name of the wave which counteracts the original bow wave how bulbous bow improves efficiency", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Fore-end / fore-peak structure: draw and describe", "cross_family": false }, { "answer_id": "RES-PROP-P01-002", "score": 0.5489813089370728, "sibling_score": 0.5489813089370728, "answer_score": 0.4507192999124527, "sibling_qid": "KOL-2024-09-0867-Q004", "sibling_text": "how to reduce hull resistance", "sibling_family": "", "via": "sibling", "answer_title": "Resistance types and methods of reducing them", "cross_family": false }, { "answer_id": "RES-PROP-P01-001", "score": 0.5176927447319031, "sibling_score": 0.5176927447319031, "answer_score": 0.4100505381822586, "sibling_qid": "KOL-2023-07-4025-Q008", "sibling_text": "frictional resistance of hull reduction methods", "sibling_family": "", "via": "sibling", "answer_title": "Resistance fundamentals: Froude & Reynolds numbers, boundary layer, frictional resistance", "cross_family": false } ] }, { "qid": "MUM-2022-07-0024-Q008", "text": "Any min speed criteria when fitting bulbous bow? Couldn't answer this.", "family": "", "subtopic": "Bulbous Bow", "tid": "MUM-2022-07-0024", "tray": "new", "candidates": [ { "answer_id": "LBT-TEST-B-006", "score": 0.5105248689651489, "sibling_score": 0.5105248689651489, "answer_score": null, "sibling_qid": "KOC-2024-01-0279-Q008", "sibling_text": "life boat static test and dynamic test x question lowering speed 36m min answer is not accepting paul sir no questions", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Dynamic-test lowering speed and brake application", "cross_family": false }, { "answer_id": "DRG-B-008", "score": 0.5033526420593262, "sibling_score": 0.5033526420593262, "answer_score": null, "sibling_qid": "MUM-2026-05-3225-Q001", "sibling_text": "lifeboat max lowering speed", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lowering speed — the limits and how they are held", "cross_family": false }, { "answer_id": "VIB-BAL-B-005", "score": 0.4967260956764221, "sibling_score": 0.4967260956764221, "answer_score": 0.40573561638593675, "sibling_qid": "MUM-2026-05-3234-Q002", "sibling_text": "barred speed range", "sibling_family": "2-Stroke - 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Equilibrium States, Factors, and Motions", "cross_family": false }, { "answer_id": "RES-PROP-P03-004", "score": 0.5616443157196045, "sibling_score": 0.5616443157196045, "answer_score": null, "sibling_qid": "KOC-2025-12-0761-Q006", "sibling_text": "checks during seatrial how ship speed is calculated answered speed log then said distance trveled by time", "sibling_family": "", "via": "sibling", "answer_title": "4. Sea trials before handover and ship-speed verification", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.5558042526245117, "sibling_score": 0.5558042526245117, "answer_score": null, "sibling_qid": "MUM-2026-04-1320-Q002", "sibling_text": "ship sailed on", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": true } ] }, { "qid": "MUM-2022-07-0028-Q001S2", "text": "Anchor chain not lowering? Actions? Where will you go check cable?", "family": "Auxiliary Equipment", "subtopic": "Anchor / Anchor Chain", "tid": "MUM-2022-07-0028", "tray": "review", "candidates": [ { "answer_id": "ANCHR-B-002", "score": 0.7153859734535217, "sibling_score": 0.7153859734535217, "answer_score": null, "sibling_qid": "KOC-2024-08-1857-Q005", "sibling_text": "checks on anchor chain in dd and type of cable chains", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Anchor & cable survey in dry dock — the systematic inspection", "cross_family": false }, { "answer_id": "ANCH-CHN-A-002", "score": 0.6631280779838562, "sibling_score": 0.6631280779838562, "answer_score": null, "sibling_qid": "MUM-2026-05-3145-Q008", "sibling_text": "anchor cable checks anchor cable length anchor cable material anchor drop test anchor cable play many more relating anchor and anchor cables", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Chain construction: material, stud links & joining shackles", "cross_family": false }, { "answer_id": "ANCH-CHN-A-004", "score": 0.6570135354995728, "sibling_score": 0.6570135354995728, "answer_score": null, "sibling_qid": "KOC-2024-01-1828-Q005", "sibling_text": "how chain connected to anchor swivel block each cable connected by d shackle", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Cable arrangement: anchor to bitter end, and the bitter-end release", "cross_family": false } ] }, { "qid": "MUM-2022-07-0028-Q001S3S2", "text": "Solas chapter 13", "family": "SOLAS - General (HOLD)", "subtopic": "", "tid": "MUM-2022-07-0028", "tray": "new", "candidates": [ { "answer_id": "SOLAS-OVW-002", "score": 0.6360347270965576, "sibling_score": 0.6360347270965576, "answer_score": null, "sibling_qid": "KOC-2021-11-0036-Q002", "sibling_text": "solas chapter 13 details", "sibling_family": "", "via": "sibling", "answer_title": "SOLAS Chapter XIII — verification of compliance (III Code / IMSAS)", "cross_family": false }, { "answer_id": "SOLAS-CH-012", "score": 0.5752401351928711, "sibling_score": 0.5752401351928711, "answer_score": 0.30613467693328855, "sibling_qid": "MUM-2020-08-0001-Q009", "sibling_text": "solas how many capters explain chapter 13 14", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS XI-1, XI-2 and XIII - safety, security and audit", "cross_family": true }, { "answer_id": "SOLAS12-C-001", "score": 0.5705533027648926, "sibling_score": 0.5705533027648926, "answer_score": null, "sibling_qid": "KOL-2019-12-0361-Q003", "sibling_text": "solas chapter 12 13", "sibling_family": "", "via": "sibling", "answer_title": "Explain SOLAS Chapter XII for bulk carriers — oral-exam overview", "cross_family": false } ] }, { "qid": "MUM-2022-07-0028-Q001S3S3", "text": "Enclosed space entry", "family": "Risk & Safety Management", "subtopic": "Enclosed Space Entry", "tid": "MUM-2022-07-0028", "tray": "review", "candidates": [ { "answer_id": "ESE-P01-003", "score": 0.8053573369979858, "sibling_score": 0.8053573369979858, "answer_score": 0.34999845921993256, "sibling_qid": "CHE-2026-04-0163-Q012", "sibling_text": "enclose space entry checks", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "General enclosed-space entry procedure as second engineer", "cross_family": false }, { "answer_id": "ESE-P02-008", "score": 0.7307485938072205, "sibling_score": 0.7307485938072205, "answer_score": null, "sibling_qid": "KOL-2019-03-0272-Q003", "sibling_text": "enclose space pre entry during entry after completion check", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "ESE-P02-08. Before, during and after: confirming a space is safe to enter", "cross_family": false }, { "answer_id": "ESE-P01-001", "score": 0.3644250437617302, "sibling_score": null, "answer_score": 0.3644250437617302, "sibling_qid": "", "sibling_text": "definition and criteria of an enclosed space enclosed space a space that may contain a hazardous atmosphere or lack oxygen and has any of these characteristics limited openings inadequate ventilation or not designed for continuous human occupancy any one suffices imo msc 581 110 definition 2 1 in force 3 december 2025 revoking a 1050 27 the danger is the atmosphere oxygen deficiency oxygen enrichm", "sibling_family": "", "via": "answer_title", "answer_title": "Definition and criteria of an enclosed space", "cross_family": false } ] }, { "qid": "MUM-2022-07-0028-Q001S4", "text": "ship grounding Your actions and checks", "family": "Ship Construction & Stability", "subtopic": "", "tid": "MUM-2022-07-0028", "tray": "new", "candidates": [ { "answer_id": "SGP-001", "score": 0.5443083047866821, "sibling_score": 0.5443083047866821, "answer_score": 0.4240593984723091, "sibling_qid": "KOL-2018-04-3135-Q002", "sibling_text": "actions after u reach port after grounding actions as a ce not as 2nd doesn t want to hear mud in coolers and sea chest changeover only checks as ce", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "What checks and actions are required when a ship is aground or after grounding?", "cross_family": true }, { "answer_id": "DUS-P1-01", "score": 0.5245180130004883, "sibling_score": 0.5245180130004883, "answer_score": null, "sibling_qid": "KOC-2026-01-2087-Q006", "sibling_text": "your ship is entering drydock checks to do as a 2e", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Drydock preparation as 2E — full workflow from office confirmation to entry", "cross_family": true }, { "answer_id": "CAS-ESTOP-002", "score": 0.5147852897644043, "sibling_score": 0.5147852897644043, "answer_score": null, "sibling_qid": "KOL-2017-06-3063-Q004", "sibling_text": "just after leaving the port your ship is grounded what engine related parameter you will check just before giving kick", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Main-engine checks after grounding, before turning or a kick", "cross_family": true } ] }, { "qid": "MUM-2022-07-0028-Q001S5", "text": "Anti fouling system new rules Life boat speed", "family": "", "subtopic": "", "tid": "MUM-2022-07-0028", "tray": "new", "candidates": [ { "answer_id": "DRG-B-008", "score": 0.6110796332359314, "sibling_score": 0.6110796332359314, "answer_score": null, "sibling_qid": "CHE-2026-03-0122-Q006", "sibling_text": "lifeboat lowering speed", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lowering speed — the limits and how they are held", "cross_family": false }, { "answer_id": "DRG-B-013", "score": 0.593634843826294, "sibling_score": 0.593634843826294, "answer_score": null, "sibling_qid": "KOL-2020-11-0442-Q005", "sibling_text": "life boat gravity davit dynamic testing name of the handle used to operate deadman handle and finally the speed regulation not more den 36m min", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "The test and examination regime — and what PSC looks at", "cross_family": false }, { "answer_id": "LB-REQ-B-007", "score": 0.586899995803833, "sibling_score": 0.586899995803833, "answer_score": null, "sibling_qid": "MUM-2026-07-3676-Q013", "sibling_text": "speed and ventilation system of fully enclosed lifeboat", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat ventilation (totally enclosed) — the new LSA requirement", "cross_family": false } ] }, { "qid": "MUM-2022-07-0028-Q001S6", "text": "Towing speed", "family": "", "subtopic": "", "tid": "MUM-2022-07-0028", "tray": "new", "candidates": [ { "answer_id": "WIND-WNCH-011", "score": 0.6100280284881592, "sibling_score": 0.6100280284881592, "answer_score": 0.44638454318046566, "sibling_qid": "KOL-2026-02-1176-Q010", "sibling_text": "windlass heaving speed", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Heaving / hoisting speed and how it is checked", "cross_family": false }, { "answer_id": "IM-TRQ-P02-002", "score": 0.5927227139472961, "sibling_score": 0.5927227139472961, "answer_score": null, "sibling_qid": "MUM-2022-07-1341-Q006", "sibling_text": "speed torque char", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "The torque-speed / torque-slip characteristic curve", "cross_family": false }, { "answer_id": "RES-PROP-P03-002", "score": 0.5910592079162598, "sibling_score": 0.5910592079162598, "answer_score": null, "sibling_qid": "CHE-2026-04-0157-Q003", "sibling_text": "ship speed of advance", "sibling_family": "", "via": "sibling", "answer_title": "2. Propulsive coefficients: QPC, hull/propeller/relative-rotative efficiency, wake, slip and propeller curves", "cross_family": false } ] }, { "qid": "MUM-2022-07-0028-Q001S7", "text": "Turbocharger maintaince ?clearanceWhat is K value? After blackout how does turbocharger shaft not fail due to improper lubrication?", "family": "", "subtopic": "", "tid": "MUM-2022-07-0028", "tray": "review", "candidates": [ { "answer_id": "TC-KLM-330-001", "score": 0.6594958305358887, "sibling_score": 0.6594958305358887, "answer_score": 0.5324321925640106, "sibling_qid": "KOL-2026-05-0058-Q002", "sibling_text": "clearances in turbocharger what are k and l clearances how to take them what tools are used value of the clearances", "sibling_family": "", "via": "sibling", "answer_title": "What are turbocharger K, L and M clearances, and how is each one derived?", "cross_family": false }, { "answer_id": "TC-CS-P01-006", "score": 0.6578695774078369, "sibling_score": 0.6578695774078369, "answer_score": null, "sibling_qid": "KOC-2025-05-1915-Q002", "sibling_text": "ae turbocharger overhaul how to take clearnce k l m", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "F·Turbocharger overhaul and clearances (ME and AE)", "cross_family": false }, { "answer_id": "TC-KLM-330-003", "score": 0.6543907523155212, "sibling_score": 0.6543907523155212, "answer_score": null, "sibling_qid": "MUM-2023-05-2170-Q004", "sibling_text": "turbocharger overhaul inplace what is k value", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Finding the K value during overhaul — procedure, and the reasons for taking it", "cross_family": false } ] }, { "qid": "MUM-2022-07-0028-Q003", "text": "Cast iron welding. How to weld cast iron with copper?", "family": "Workshop & Welding", "subtopic": "Welding / NDT / Heat Treatment", "tid": "MUM-2022-07-0028", "tray": "review", "candidates": [ { "answer_id": "WELD-B-001", "score": 0.7260648608207703, "sibling_score": 0.7260648608207703, "answer_score": 0.5121161520481109, "sibling_qid": "CHE-2026-05-0531-Q005", "sibling_text": "cast iron welding procedure", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding & crack-repair of aluminium and cast iron, including metal stitching", "cross_family": false }, { "answer_id": "WELD-B-003", "score": 0.4510650813579559, "sibling_score": null, "answer_score": 0.4510650813579559, "sibling_qid": "", "sibling_text": "joining copper and refrigeration pipes brazing and cold methods copper pipe joining silver brazing or copper phosphorus bcup brazing into a capillary socket clean bright small gap heat the parent not the rod cu p filler is self fluxing on copper to copper flux is required for copper to brass dissimilar joints", "sibling_family": "", "via": "answer_title", "answer_title": "Joining copper and refrigeration pipes — brazing and cold methods", "cross_family": false }, { "answer_id": "LH-ELEC-006", "score": 0.45065075159072876, "sibling_score": null, "answer_score": 0.45065075159072876, "sibling_qid": "", "sibling_text": "6 how would you approach a cast iron valve repair when the examiner probes welding and low hydrogen electrodes first response replace or fit a sound same size valve a welded cast iron repair is a stop gap not equal to new if welding cast iron not a plain mild steel low hydrogen rod the high carbon makes a hard brittle cracking weld", "sibling_family": "", "via": "answer_title", "answer_title": "6. How would you approach a cast-iron valve repair when the examiner probes welding and low-hydrogen electrodes?", "cross_family": false } ] }, { "qid": "MUM-2022-07-0028-Q005", "text": "What is heat exchanger? Possible faults?", "family": "Heat Exchangers & Coolers", "subtopic": "", "tid": "MUM-2022-07-0028", "tray": "review", "candidates": [ { "answer_id": "PTHE-008", "score": 0.6976465582847595, "sibling_score": 0.6976465582847595, "answer_score": null, "sibling_qid": "KOL-2020-02-1526-Q004", "sibling_text": "platevtype heat exchanger 5 causes of exhaust valve burning", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "General plate-cooler prompt (declared interpretation)", "cross_family": false }, { "answer_id": "STHX-007", "score": 0.6959297060966492, "sibling_score": 0.6959297060966492, "answer_score": null, "sibling_qid": "CHE-2025-08-0174-Q010", "sibling_text": "tube type heater exchanger not heating fuel reasons and remedies", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "STHX-07 — Performance, efficiency, choking and poor heat transfer", "cross_family": false }, { "answer_id": "STHX-002", "score": 0.6921480298042297, "sibling_score": 0.6921480298042297, "answer_score": null, "sibling_qid": "KOL-2017-08-3080-Q003", "sibling_text": "3 heatexchanger leak found", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "STHX-02 — Leak detection, indications and isolation", "cross_family": false } ] }, { "qid": "MUM-2022-07-0030-Q005", "text": "ISPS Code", "family": "ISPS", "subtopic": "ISPS Code / Security Level", "tid": "MUM-2022-07-0030", "tray": "review", "candidates": [ { "answer_id": "ISPS-SL-001", "score": 0.7833240032196045, "sibling_score": 0.7833240032196045, "answer_score": 0.38912703692913053, "sibling_qid": "KOL-2023-08-0762-Q005", "sibling_text": "isps code", "sibling_family": "ISPS", "via": "sibling", "answer_title": "The ISPS Code — purpose, scope and the SOLAS link", "cross_family": false }, { "answer_id": "ISPS-OV-001", "score": 0.7488355040550232, "sibling_score": 0.7488355040550232, "answer_score": 0.4004838168621063, "sibling_qid": "MUM-2025-09-0453-Q001", "sibling_text": "isps code in detail", "sibling_family": "ISPS", "via": "sibling", "answer_title": "ISPS Code: what it is, structure and key elements", "cross_family": false }, { "answer_id": "ISPS-SL-002", "score": 0.7295778393745422, "sibling_score": 0.7295778393745422, "answer_score": null, "sibling_qid": "KOL-2022-10-0689-Q046", "sibling_text": "isps code elements in this code describe", "sibling_family": "ISPS", "via": "sibling", "answer_title": "Elements, contents, functional requirements, training and equipment", "cross_family": false } ] }, { "qid": "MUM-2022-07-0939-Q001", "text": "Type of engine. Specifications.", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2022-07-0939", "tray": "review", "candidates": [ { "answer_id": "ENG-NOM-006", "score": 0.8062860369682312, "sibling_score": 0.8062860369682312, "answer_score": null, "sibling_qid": "CHE-2026-03-0181-Q001", "sibling_text": "engine specification", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Short-form asks: SMC-C, LMC, and ME vs MC quickly", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.8037287592887878, "sibling_score": 0.8037287592887878, "answer_score": 0.48985927700996396, "sibling_qid": "MUM-2026-07-3719-Q006", "sibling_text": "type of engine and it s specification", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false }, { "answer_id": "ETP-344-P03-001", "score": 0.7974323034286499, "sibling_score": 0.7974323034286499, "answer_score": null, "sibling_qid": "MUM-2026-07-3737-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false } ] }, { "qid": "MUM-2022-07-0939-Q005", "text": "Purpose of top bracing and when to adjust them? Wanted to hear during DD.", "family": "2-Stroke - Structure & Tie Rods", "subtopic": "Top Bracing / Holding-down / Chocking", "tid": "MUM-2022-07-0939", "tray": "new", "candidates": [ { "answer_id": "TOP-BRC-001", "score": 0.603800892829895, "sibling_score": 0.603800892829895, "answer_score": 0.3983738154172897, "sibling_qid": "KOC-2021-07-0920-Q010", "sibling_text": "top bracing function", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "1. What top bracing is, where it is fitted, and why", "cross_family": true }, { "answer_id": "TOP-BRC-003", "score": 0.5877023339271545, "sibling_score": 0.5877023339271545, "answer_score": null, "sibling_qid": "MUM-2026-05-3343-Q003", "sibling_text": "top bracing function and checks", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "3. Checks, testing, maintenance, overhaul and malfunction", "cross_family": true }, { "answer_id": "PRE-TEN-005", "score": 0.3554032891988754, "sibling_score": null, "answer_score": 0.3554032891988754, "sibling_qid": "", "sibling_text": "tie rod tightening procedure tie rods clamp bedplate columns entablature into one rigid pre compressed structure they keep the structure pre compressed so the transverse girders are spared fluctuating tensile stress and they hold alignment", "sibling_family": "", "via": "answer_title", "answer_title": "Tie-rod tightening procedure", "cross_family": false } ] }, { "qid": "MUM-2022-07-0940-Q001", "text": "What all will be given on the name plate of the engine", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2022-07-0940", "tray": "review", "candidates": [ { "answer_id": "ENG-NOM-005", "score": 0.7027345299720764, "sibling_score": 0.7027345299720764, "answer_score": 0.49652026891708373, "sibling_qid": "MUM-2026-05-3142-Q006", "sibling_text": "full nomenclature of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false }, { "answer_id": "ETP-344-P03-001", "score": 0.6750419735908508, "sibling_score": 0.6750419735908508, "answer_score": null, "sibling_qid": "KOC-2026-05-0046-Q002", "sibling_text": "company and type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "ENG-NOM-006", "score": 0.6687960624694824, "sibling_score": 0.6687960624694824, "answer_score": null, "sibling_qid": "CHE-2026-05-0568-Q001", "sibling_text": "specifications of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Short-form asks: SMC-C, LMC, and ME vs MC quickly", "cross_family": false } ] }, { "qid": "MUM-2022-07-0940-Q005", "text": "One unit in the generator, exhaust temperature is high. What will you check", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Decarb / Balancing / High Exhaust Temperature", "tid": "MUM-2022-07-0940", "tray": "review", "candidates": [ { "answer_id": "AE-HOT-BLOW-005", "score": 0.7957833409309387, "sibling_score": 0.7957833409309387, "answer_score": null, "sibling_qid": "KOL-2018-03-1361-Q007", "sibling_text": "ae one unit exhaust temp rising all unit rising why how to confirm nozzle ring is chocked there is no tc rpm monitor", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Auxiliary engine units rising — one versus all, and confirming a choked turbocharger nozzle ring", "cross_family": false }, { "answer_id": "EXH-T-HI-002", "score": 0.7939316034317017, "sibling_score": 0.7939316034317017, "answer_score": 0.6723422050476074, "sibling_qid": "CHE-2026-04-0259-Q004", "sibling_text": "temp of one unit exhaust is high wt will be ur action", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "One unit exhaust temperature high — causes, checks and actions", "cross_family": true }, { "answer_id": "CPP-POL-02", "score": 0.7895082831382751, "sibling_score": 0.7895082831382751, "answer_score": null, "sibling_qid": "CHE-2026-05-0531-Q001", "sibling_text": "one unit exhaust temp less reason checks", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "One main-engine cylinder has a low exhaust temperature — what are the causes and checks?", "cross_family": false } ] }, { "qid": "MUM-2022-07-0940-Q006", "text": "Type of boiler. Why blow back takes place", "family": "Boilers - Operations & Firing", "subtopic": "Boiler Backfire / Blowback", "tid": "MUM-2022-07-0940", "tray": "review", "candidates": [ { "answer_id": "BBF-621-001", "score": 0.7605823874473572, "sibling_score": 0.7605823874473572, "answer_score": 0.5778987795114517, "sibling_qid": "MUM-2024-07-2767-Q014", "sibling_text": "bolier what is blow back reasons", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "What is boiler backfire / blowback? Explain the furnace event, the reasons, and how you prevent it.", "cross_family": false }, { "answer_id": "BFS-257-006", "score": 0.754165530204773, "sibling_score": 0.754165530204773, "answer_score": 0.6045745640993118, "sibling_qid": "CHE-2026-02-0483-Q001", "sibling_text": "boiler blow back", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler backfire / blowback / panting — causes, prevention, actions", "cross_family": false }, { "answer_id": "BBF-621-002", "score": 0.7353175282478333, "sibling_score": 0.7353175282478333, "answer_score": null, "sibling_qid": "KOC-2026-05-0004-Q007", "sibling_text": "boiler blow back reason and action", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Backfire has occurred on the oil-fired boiler. What are your actions as 2/E, and what instructions do you give the junior engineer or watchkeeper?", "cross_family": false } ] }, { "qid": "MUM-2022-07-0940-Q007", "text": "In refer one chamber temperature is rising, what are the reason", "family": "Refrigeration & AC", "subtopic": "Refrigeration Faults / Checks", "tid": "MUM-2022-07-0940", "tray": "review", "candidates": [ { "answer_id": "REFR-FLT-001", "score": 0.6637141704559326, "sibling_score": 0.6637141704559326, "answer_score": null, "sibling_qid": "KOL-2021-03-3384-Q003", "sibling_text": "temperature of one of the cold storage room is increasing why detect the fault and rectify", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Provision/cold room temperature: will not pull down, runs too low, or will not hold", "cross_family": false }, { "answer_id": "RAC-HPLP-389-001", "score": 0.6394323706626892, "sibling_score": 0.6394323706626892, "answer_score": null, "sibling_qid": "MUM-2026-03-2648-Q001", "sibling_text": "condenser temperature high", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Refrigeration / AC compressor trips on high pressure — causes and checks", "cross_family": false }, { "answer_id": "EXH-T-HI-001", "score": 0.6275956630706787, "sibling_score": 0.6275956630706787, "answer_score": null, "sibling_qid": "KOL-2017-01-1841-Q003", "sibling_text": "exhaust temperatures of all units rising suddenly reasons", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "All units exhaust temperature high — causes and actions", "cross_family": true } ] }, { "qid": "MUM-2022-07-1012-Q002", "text": "During E/R round things to check in control air dyrer", "family": "Air Compressor", "subtopic": "MAC / Air Compressor", "tid": "MUM-2022-07-1012", "tray": "new", "candidates": [ { "answer_id": "AIRBTL-CORR-001", "score": 0.5776317119598389, "sibling_score": 0.5776317119598389, "answer_score": null, "sibling_qid": "KOL-2018-04-3140-Q006", "sibling_text": "air bottle inspection n checks", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "AIRBTL-CORR-01 — Air bottle survey and internal inspection — preparation, checks and what you show the surveyor", "cross_family": false }, { "answer_id": "MAC-353-003", "score": 0.5678501725196838, "sibling_score": 0.5678501725196838, "answer_score": null, "sibling_qid": "CHE-2026-03-0489-Q005", "sibling_text": "air compressor valve checks", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Main air compressor suction / delivery valve inspection and overhaul", "cross_family": false }, { "answer_id": "MAC-598-003", "score": 0.5476831197738647, "sibling_score": 0.5476831197738647, "answer_score": null, "sibling_qid": "MUM-2024-12-2262-Q002", "sibling_text": "while taking engine room rounds you found compressor running with low amps and not filling air bottle what are your actions", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "The compressor is not filling the bottle, or is taking longer than usual, or running continuously on low amps — checks and actions as 2/E", "cross_family": false } ] }, { "qid": "MUM-2022-07-1012-Q005", "text": "how to keep boiler warm up when it is temporary out of service for 1-2days", "family": "Boilers - Safety & Survey", "subtopic": "Wet/Dry Layup", "tid": "MUM-2022-07-1012", "tray": "new", "candidates": [ { "answer_id": "BLR-OPS-006", "score": 0.6387969851493835, "sibling_score": 0.6387969851493835, "answer_score": 0.5220698952674866, "sibling_qid": "MUM-2023-09-1061-Q002", "sibling_text": "warming up of boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Explain the warming up of a boiler.", "cross_family": true }, { "answer_id": "BLR-SURV-P02-006", "score": 0.6353160738945007, "sibling_score": 0.6353160738945007, "answer_score": null, "sibling_qid": "MUM-2026-03-2589-Q001", "sibling_text": "boiler how to fire after survey", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "BWTEST-C-002", "score": 0.6259977221488953, "sibling_score": 0.6259977221488953, "answer_score": null, "sibling_qid": "KOC-2021-07-0920-Q007", "sibling_text": "mechanical o2 scavenging in boiler at wat temp hot well maintained", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Oxygen, hydrazine & sulphite tests — removing the main corrodent", "cross_family": false } ] }, { "qid": "MUM-2022-07-1012-Q009", "text": "In boiler circulating pump how bearing is protected from steam or water leakage", "family": "Boilers - Operations & Firing", "subtopic": "Circulating Pump", "tid": "MUM-2022-07-1012", "tray": "new", "candidates": [ { "answer_id": "PAL-620-001", "score": 0.6198809742927551, "sibling_score": 0.6198809742927551, "answer_score": null, "sibling_qid": "MUM-2026-07-3673-Q005", "sibling_text": "boiler water circulating pump from where its taking suction and where putting", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "How do you check and set the alignment between a pump and its motor? Horizontal centrifugal pump — where the dial gauge goes and what values apply.", "cross_family": false }, { "answer_id": "SBD-001", "score": 0.6172199845314026, "sibling_score": 0.6172199845314026, "answer_score": null, "sibling_qid": "KOL-2016-11-3017-Q005", "sibling_text": "by bnd oil in boiler gauge glass course of actions", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "You find oil in the boiler gauge glass — causes, how you identify the source, and your actions as 2/E (including if manoeuvring). What is carryover?", "cross_family": false }, { "answer_id": "BLR-STM-PR-B54-004", "score": 0.6037996411323547, "sibling_score": 0.6037996411323547, "answer_score": null, "sibling_qid": "KOL-2017-03-1281-Q009", "sibling_text": "pressure and steam flow rate shaft tunnel intermediate bearings how is it cooled", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Steam pressure and steam flow rate — what each one actually tells you", "cross_family": false } ] }, { "qid": "MUM-2022-07-1012-Q010", "text": "T/C sleeve bearing advantage", "family": "Turbocharger", "subtopic": "TC Bearing", "tid": "MUM-2022-07-1012", "tray": "new", "candidates": [ { "answer_id": "TURBO-CS-P02-001", "score": 0.5799883604049683, "sibling_score": 0.5799883604049683, "answer_score": 0.41803008466958996, "sibling_qid": "KOC-2025-11-1067-Q005", "sibling_text": "type of t c bearings explain", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharger bearings — types and lubrication", "cross_family": false }, { "answer_id": "WMAT-170-003", "score": 0.5795955657958984, "sibling_score": 0.5795955657958984, "answer_score": 0.43449092805385586, "sibling_qid": "KOL-2021-04-3395-Q005", "sibling_text": "advantage of thin shell bearing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Thin-shell and thick-shell bearings: design, advantages, developments", "cross_family": true }, { "answer_id": "TC-CONST-003", "score": 0.5509138107299805, "sibling_score": 0.5509138107299805, "answer_score": null, "sibling_qid": "KOL-2018-07-1393-Q005", "sibling_text": "arrangement for expansion of t c shaft with outboard bearings", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "General construction and turbocharger arrangement", "cross_family": false } ] }, { "qid": "MUM-2022-07-1012-Q012", "text": "fwg production is low explain only why related to evaporator, and remedies", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "MUM-2022-07-1012", "tray": "new", "candidates": [ { "answer_id": "FWG-RO-003", "score": 0.6286484599113464, "sibling_score": 0.6286484599113464, "answer_score": 0.46753927469253537, "sibling_qid": "CHE-2026-03-0495-Q003", "sibling_text": "fwg reason for reduced production and parameters", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "The FWG is not producing enough water or its efficiency has dropped. Reasons, checks and action?", "cross_family": false }, { "answer_id": "FWG-RO-001", "score": 0.56418776512146, "sibling_score": 0.56418776512146, "answer_score": 0.41292738914489746, "sibling_qid": "MUM-2025-09-1197-Q006", "sibling_text": "fwg working principle did not accept low pressure evaporation and cooling", "sibling_family": "Fresh Water & Domestic Systems", "via": "sibling", "answer_title": "How is vacuum created in the FWG, why does it run under vacuum, and what if the vacuum will not come?", "cross_family": true }, { "answer_id": "STHX-007", "score": 0.4679776430130005, "sibling_score": 0.4679776430130005, "answer_score": null, "sibling_qid": "KOL-2016-05-2988-Q003", "sibling_text": "after cleaning condenser efficiency not increasing also reason", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "STHX-07 — Performance, efficiency, choking and poor heat transfer", "cross_family": false } ] }, { "qid": "MUM-2022-07-1012-Q013", "text": "Boiler derating process", "family": "Boilers - Operations & Firing", "subtopic": "Boiler Operations", "tid": "MUM-2022-07-1012", "tray": "new", "candidates": [ { "answer_id": "TDR-584-001", "score": 0.6358222365379333, "sibling_score": 0.6358222365379333, "answer_score": null, "sibling_qid": "KOC-2026-09-2200-Q004", "sibling_text": "turn down ratio of boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "What is the turndown ratio of a marine boiler? Explain.", "cross_family": false }, { "answer_id": "BURNER-TYPE-001", "score": 0.6257578730583191, "sibling_score": 0.6257578730583191, "answer_score": 0.46405881345272065, "sibling_qid": "KOC-2024-10-2056-Q003", "sibling_text": "boiler turn down ratio", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler burner turn-down ratio", "cross_family": false }, { "answer_id": "BLRBURN-005", "score": 0.6152946352958679, "sibling_score": 0.6152946352958679, "answer_score": null, "sibling_qid": "KOC-2026-02-2092-Q003", "sibling_text": "boiler turn down ratio pressrue jet burner diagram", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Explain turndown ratio, and draw the pressure jet burner — its construction, working and how throughput is controlled.", "cross_family": false } ] }, { "qid": "MUM-2022-07-1012-Q015", "text": "All 3 provision room temp not coming", "family": "Refrigeration & AC", "subtopic": "Refrigeration Faults / Checks", "tid": "MUM-2022-07-1012", "tray": "new", "candidates": [ { "answer_id": "RAC-MAT-320-001", "score": 0.6385558247566223, "sibling_score": 0.6385558247566223, "answer_score": 0.3399802207946777, "sibling_qid": "MUM-2024-06-2229-Q004", "sibling_text": "refer room temp not coming reasons", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "1. Holding different room temperatures — meat, fish, vegetable, dairy", "cross_family": false }, { "answer_id": "RAC-MAT-320-002", "score": 0.5902080535888672, "sibling_score": 0.5902080535888672, "answer_score": null, "sibling_qid": "MUM-2026-02-2581-Q005", "sibling_text": "accomodation ac temp not developing", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "2. Accommodation / passenger AC — holding temperature and \"cooling not developing\"", "cross_family": false }, { "answer_id": "REFR-FLT-001", "score": 0.5820293426513672, "sibling_score": 0.5820293426513672, "answer_score": 0.3899529606103897, "sibling_qid": "CHE-2026-03-0497-Q001", "sibling_text": "in refer system one room temperature is not maintaining what you will check", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Provision/cold room temperature: will not pull down, runs too low, or will not hold", "cross_family": false } ] }, { "qid": "MUM-2022-07-1013-Q003", "text": "Clearence of t/c ? Why we take k clearence? How many types clearence", "family": "Turbocharger", "subtopic": "TC Clearances / Inspection", "tid": "MUM-2022-07-1013", "tray": "new", "candidates": [ { "answer_id": "TC-KLM-330-001", "score": 0.5171988606452942, "sibling_score": 0.5171988606452942, "answer_score": 0.2928630024194717, "sibling_qid": "MUM-2026-03-2638-Q005", "sibling_text": "clearances to be taken in tc", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "What are turbocharger K, L and M clearances, and how is each one derived?", "cross_family": false }, { "answer_id": "TURBO-CS-P03-006", "score": 0.5150405764579773, "sibling_score": 0.5150405764579773, "answer_score": 0.2727002203464508, "sibling_qid": "KOL-2023-05-3609-Q003", "sibling_text": "t c clearance effects", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharger clearances: axial float, radial, K/L/M, effects", "cross_family": false }, { "answer_id": "TC-KLM-330-002", "score": 0.4751355051994324, "sibling_score": 0.4751355051994324, "answer_score": null, "sibling_qid": "MUM-2025-05-0273-Q016", "sibling_text": "what is k value in t c", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "What is the K value, why is it important, and what happens if it is wrong?", "cross_family": false } ] }, { "qid": "MUM-2022-07-1013-Q004", "text": "What type of lubrication on t/c", "family": "Turbocharger", "subtopic": "TC Bearing", "tid": "MUM-2022-07-1013", "tray": "review", "candidates": [ { "answer_id": "TC-OVHL-001", "score": 0.7036263942718506, "sibling_score": 0.7036263942718506, "answer_score": null, "sibling_qid": "MUM-2026-05-3219-Q003", "sibling_text": "me tc lubrication type", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Main-engine turbocharger overhaul — procedure and post-overhaul checks", "cross_family": false }, { "answer_id": "TURBO-CS-P02-001", "score": 0.6723929047584534, "sibling_score": 0.6723929047584534, "answer_score": 0.4273855626583099, "sibling_qid": "CHE-2026-05-0605-Q003", "sibling_text": "tc types and how bearing lubricated", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharger bearings — types and lubrication", "cross_family": false }, { "answer_id": "HYDRO-LUB-001", "score": 0.5755888223648071, "sibling_score": 0.5755888223648071, "answer_score": 0.4160304799675941, "sibling_qid": "MUM-2026-09-3997-Q012", "sibling_text": "type of lubrication examples", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "1. Lubrication, tribology & the types of lubrication", "cross_family": false } ] }, { "qid": "MUM-2022-07-1013-Q005", "text": "Crevic corrosion?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "", "tid": "MUM-2022-07-1013", "tray": "review", "candidates": [ { "answer_id": "CORR-DEZ-004", "score": 0.7197327017784119, "sibling_score": 0.7197327017784119, "answer_score": 0.5524295568466187, "sibling_qid": "CHE-2026-05-0613-Q001", "sibling_text": "crevices corrosion", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What is crevice corrosion?", "cross_family": false }, { "answer_id": "MATPROP-A-005", "score": 0.656369686126709, "sibling_score": 0.656369686126709, "answer_score": 0.5250371813774108, "sibling_qid": "KOL-2025-10-3868-Q003", "sibling_text": "creavage corrosion", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Corrosion and degradation mechanisms", "cross_family": true }, { "answer_id": "SUB-CORR-001", "score": 0.6337071061134338, "sibling_score": 0.6337071061134338, "answer_score": null, "sibling_qid": "MUM-2026-08-3855-Q013", "sibling_text": "what is substaincial corrosion", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "SUB-CORR-01 — What is substantial corrosion, and how is it identified against survey limits?", "cross_family": false } ] }, { "qid": "MUM-2022-07-1014-Q002", "text": "Type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2022-07-1014", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8366292119026184, "sibling_score": 0.8366292119026184, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8018827438354492, "sibling_score": 0.8018827438354492, "answer_score": 0.5473108768463134, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8003316521644592, "sibling_score": 0.8003316521644592, "answer_score": 0.5218650102615356, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2022-07-1014-Q003", "text": "Type of engine (he wanted to listen ME ,But i worked on Mcc)", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2022-07-1014", "tray": "review", "candidates": [ { "answer_id": "MCC-MEB-P01-001", "score": 0.6628870368003845, "sibling_score": 0.6628870368003845, "answer_score": 0.37557093501091005, "sibling_qid": "MUM-2026-06-3596-Q002", "sibling_text": "what type of engine mcc", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "MC-C (\"Compact\") engine — design and the main constructional differences from MC", "cross_family": false }, { "answer_id": "EGTP-P02-005", "score": 0.6194548606872559, "sibling_score": 0.6194548606872559, "answer_score": 0.3878636807203293, "sibling_qid": "MUM-2026-06-3500-Q002", "sibling_text": "mc vs me engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "MC / MC-C / ME-C and Electronically Controlled Engines", "cross_family": false }, { "answer_id": "ALT-MTN-B-001", "score": 0.5854153037071228, "sibling_score": 0.5854153037071228, "answer_score": null, "sibling_qid": "MUM-2026-02-1281-Q001", "sibling_text": "main engine specification mc c", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Routine onboard alternator maintenance checks", "cross_family": false } ] }, { "qid": "MUM-2022-07-1016-Q003", "text": "Sliding valve how it works", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Cut-off Slide", "tid": "MUM-2022-07-1016", "tray": "new", "candidates": [ { "answer_id": "FINJ-003", "score": 0.6331984996795654, "sibling_score": 0.6331984996795654, "answer_score": null, "sibling_qid": "KOL-2018-01-1345-Q004", "sibling_text": "slide type fuel valve working", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Sac volume, zero-sac and the slide-type fuel valve development", "cross_family": false }, { "answer_id": "COS343-001", "score": 0.5545943379402161, "sibling_score": 0.5545943379402161, "answer_score": null, "sibling_qid": "MUM-2026-05-3163-Q004", "sibling_text": "what is cut off slide in fuel valve", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "What is the fuel-pump “cut-off” (cut-off slide) and what does it do?", "cross_family": false }, { "answer_id": "SLOWTURN-BT-001", "score": 0.5304184556007385, "sibling_score": 0.5304184556007385, "answer_score": null, "sibling_qid": "MUM-2026-05-3176-Q006", "sibling_text": "how slow turning valve works", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Slow turning of the main engine — the slow-turning valve and the failure alarm", "cross_family": true } ] }, { "qid": "MUM-2022-07-1016-Q005", "text": "Steering gear what is fail safe", "family": "Electrical - Protection & Relays", "subtopic": "Protection / Relays", "tid": "MUM-2022-07-1016", "tray": "review", "candidates": [ { "answer_id": "SG-055-B-002", "score": 0.6933757066726685, "sibling_score": 0.6933757066726685, "answer_score": 0.4721934676170349, "sibling_qid": "KOL-2026-07-4272-Q004", "sibling_text": "fail safe arrangement in steering gear n", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Steering-gear alarms, trips and electrical / hydraulic safeties", "cross_family": true }, { "answer_id": "SG-055-B-003", "score": 0.6453835964202881, "sibling_score": 0.6453835964202881, "answer_score": null, "sibling_qid": "KOC-2026-03-0887-Q007", "sibling_text": "steering gear motor 100 redundency fail safe", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Redundancy and the single-failure requirement (50% / 100%)", "cross_family": true }, { "answer_id": "STG-055-C-001", "score": 0.6285039186477661, "sibling_score": 0.6285039186477661, "answer_score": 0.5139173567295074, "sibling_qid": "KOL-2026-07-4249-Q006", "sibling_text": "safematic arrangement in steering gear", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Safematic steering gear, redundancy and the single-failure criterion", "cross_family": true } ] }, { "qid": "MUM-2022-07-1016-Q007", "text": "High lift safety valve explain everything", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2022-07-1016", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.7240431308746338, "sibling_score": 0.7240431308746338, "answer_score": null, "sibling_qid": "MUM-2026-06-3405-Q017", "sibling_text": "improved high lift safety valve details", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACSS-002", "score": 0.5029884338378906, "sibling_score": null, "answer_score": 0.5029884338378906, "sibling_qid": "", "sibling_text": "relief safety valves settings testing lifting reasons bursting disc set just above stage working pressure the class standard accumulation limit is about 10 though the exact set point is a maker sms value non isolable from its stage test to the maker s method easing gear or test rig for lifting pressure log and reset", "sibling_family": "", "via": "answer_title", "answer_title": "Relief / safety valves: settings, testing, lifting reasons; bursting disc", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-003", "score": 0.4933052361011505, "sibling_score": null, "answer_score": 0.4933052361011505, "sibling_qid": "", "sibling_text": "the accumulation test and the safety valve required lift how lift and capacity are verified and why accumulation must stay inside the limit popping test proves setting accumulation test proves installed relieving capacity not two versions of one test sizing the class discharge formula sizes the aggregate valve area from the maker s specified peak evaporation using a constant for the valve type", "sibling_family": "", "via": "answer_title", "answer_title": "The accumulation test and the safety valve — required lift, how lift and capacity are verified, and why accumulation must stay inside the limit", "cross_family": false } ] }, { "qid": "MUM-2022-07-1329-Q004", "text": "Rpm sensors", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Encoders", "tid": "MUM-2022-07-1329", "tray": "new", "candidates": [ { "answer_id": "PROX-SW-004", "score": 0.6072502136230469, "sibling_score": 0.6072502136230469, "answer_score": 0.4759809017181396, "sibling_qid": "NOI-2026-09-0007-Q005", "sibling_text": "how main engine rpm is sensed", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Speed measurement by sensor, and the proximity sensor working principle", "cross_family": true }, { "answer_id": "GOV-P03-003", "score": 0.5957484245300293, "sibling_score": 0.5957484245300293, "answer_score": null, "sibling_qid": "KOL-2024-05-3688-Q007", "sibling_text": "reason for me rpm fluctuations", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Hunting, RPM fluctuation and troubleshooting", "cross_family": true }, { "answer_id": "ANG-ENC-003", "score": 0.5896334648132324, "sibling_score": 0.5896334648132324, "answer_score": null, "sibling_qid": "KOC-2026-02-2092-Q012", "sibling_text": "angle encoders what senses the rpm and direction", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Working principle: sensing crank angle, speed and direction", "cross_family": true } ] }, { "qid": "MUM-2022-07-1334-Q001", "text": "What the solas requirement for alternator?", "family": "Surveys - Statutory", "subtopic": "Certificates List", "tid": "MUM-2022-07-1334", "tray": "new", "candidates": [ { "answer_id": "ALT-GEN-P02-001", "score": 0.6252268552780151, "sibling_score": 0.6252268552780151, "answer_score": null, "sibling_qid": "CHE-2026-09-3906-Q001", "sibling_text": "alternator specification", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Alternator/generator specifications, ratings and ship electrical supply details", "cross_family": true }, { "answer_id": "AVR-EXC-H-004", "score": 0.498087203502655, "sibling_score": null, "answer_score": 0.498087203502655, "sibling_qid": "", "sibling_text": "solas class requirements for avr voltage regulation solas gives the functional duty not a voltage regulation number solas ii 1 part d reg 41 main source of electrical power and lighting sufficient capacity with any one set out of action the rest maintain essential services and habitability propulsion steering maintained or immediately restored on loss of one generator", "sibling_family": "", "via": "answer_title", "answer_title": "SOLAS / Class requirements for AVR voltage regulation", "cross_family": false }, { "answer_id": "EDG-P01-001", "score": 0.48890137374401094, "sibling_score": null, "answer_score": 0.48890137374401094, "sibling_qid": "", "sibling_text": "emergency source of power the solas requirements instrument solas ch ii 1 part d reg 43 cargo reg 42 passenger reg 44 starting arrangements a self contained independent emergency source either a generator or an accumulator battery", "sibling_family": "", "via": "answer_title", "answer_title": "Emergency source of power — the SOLAS requirements", "cross_family": false } ] }, { "qid": "MUM-2022-07-1334-Q005", "text": "After dry dock/modification surveyor told show me the alternator load test ?How can you done load test.?? Full procedure", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator Maintenance", "tid": "MUM-2022-07-1334", "tray": "review", "candidates": [ { "answer_id": "IR-TEST-305-001", "score": 0.7064515948295593, "sibling_score": 0.7064515948295593, "answer_score": null, "sibling_qid": "MUM-2026-05-3296-Q006", "sibling_text": "insulation test of alternator stepwise procedure", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Carrying out the IR (megger) test on an alternator winding", "cross_family": false }, { "answer_id": "LS-IMB-A-001", "score": 0.6756395697593689, "sibling_score": 0.6756395697593689, "answer_score": null, "sibling_qid": "KOL-2025-08-2835-Q015", "sibling_text": "alternators running at different loads actions you will take as 2e", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Two paralleled generators sharing unequal load — cause and correction", "cross_family": false }, { "answer_id": "ALT-MAINT-A-001", "score": 0.6619873642921448, "sibling_score": 0.6619873642921448, "answer_score": null, "sibling_qid": "KOL-2026-07-4247-Q013", "sibling_text": "alternator maintenance test", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Routine maintenance & care of a ship’s alternator", "cross_family": false } ] }, { "qid": "MUM-2022-07-1337-Q002", "text": "How to order Motor", "family": "Electrical - Motors & Starters", "subtopic": "Motor Specification / Ordering", "tid": "MUM-2022-07-1337", "tray": "review", "candidates": [ { "answer_id": "BRG-NOM-001", "score": 0.8257383108139038, "sibling_score": 0.8257383108139038, "answer_score": null, "sibling_qid": "NOI-2026-09-0015-Q005", "sibling_text": "how to order motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Bearing Numbers, Suffixes and What to State When Ordering", "cross_family": false }, { "answer_id": "IP-ENCL-002", "score": 0.6725749373435974, "sibling_score": 0.6725749373435974, "answer_score": null, "sibling_qid": "KOC-2026-10-2222-Q002", "sibling_text": "how to order sea water motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Suitable IP rating by location — ER, deck, pump, generator", "cross_family": false }, { "answer_id": "SGM-ELEC-002", "score": 0.6453049182891846, "sibling_score": 0.6453049182891846, "answer_score": 0.49151477217674255, "sibling_qid": "MUM-2025-08-1605-Q001", "sibling_text": "steering motor type and difference from other er motors how to order motor over speed test over current test", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What type of motor is the steering gear motor, how does it differ from other engine-room motors, and how do you order one?", "cross_family": false } ] }, { "qid": "MUM-2022-07-1337-Q003", "text": "Frame no", "family": "Electrical - Motors & Starters", "subtopic": "Frame Number", "tid": "MUM-2022-07-1337", "tray": "review", "candidates": [ { "answer_id": "ELECTRICAL-M-A-01", "score": 0.7898924946784973, "sibling_score": 0.7898924946784973, "answer_score": 0.44379769265651703, "sibling_qid": "MUM-2026-03-1997-Q004", "sibling_text": "frame number", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Motor Frame Number", "cross_family": false }, { "answer_id": "KGF-A-002", "score": 0.7390808463096619, "sibling_score": 0.7390808463096619, "answer_score": 0.5479308009147644, "sibling_qid": "KOC-2026-08-2115-Q010", "sibling_text": "frame number", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Frame numbering, spacing & identification", "cross_family": true }, { "answer_id": "SHELL-PLT-A-001", "score": 0.6107726097106934, "sibling_score": 0.6107726097106934, "answer_score": null, "sibling_qid": "KOC-2024-08-0392-Q013", "sibling_text": "frame numbering shell expansion plan", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "The shell expansion plan, and how you identify a plate", "cross_family": true } ] }, { "qid": "MUM-2022-07-1339-Q005", "text": "Diode test", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Zener / Diode / Rectifier", "tid": "MUM-2022-07-1339", "tray": "review", "candidates": [ { "answer_id": "EPC-P01-02", "score": 0.7327156066894531, "sibling_score": 0.7327156066894531, "answer_score": null, "sibling_qid": "CHE-2026-05-0627-Q008", "sibling_text": "diode testing", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Types of diodes, and where diodes are used on board", "cross_family": false }, { "answer_id": "EPC-P02-01", "score": 0.6376187801361084, "sibling_score": 0.6376187801361084, "answer_score": null, "sibling_qid": "KOL-2022-08-2593-Q004", "sibling_text": "what is zener diode how diode test onboard", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a zener diode? Draw its symbol, explain its working principle, and draw and explain its characteristic curve including the zener (breakdown) voltage.", "cross_family": false }, { "answer_id": "TC-A-004", "score": 0.6295345425605774, "sibling_score": 0.6295345425605774, "answer_score": 0.5075696706771851, "sibling_qid": "KOC-2025-07-1544-Q003", "sibling_text": "transistor testing other than diode mode", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Testing a transistor — and testing it other than in diode mode", "cross_family": false } ] }, { "qid": "MUM-2022-07-1341-Q001", "text": "Type of Alternators", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator / Generator", "tid": "MUM-2022-07-1341", "tray": "review", "candidates": [ { "answer_id": "ALT-GEN-P01-002", "score": 0.7245325446128845, "sibling_score": 0.7245325446128845, "answer_score": 0.5012252271175385, "sibling_qid": "KOL-2022-01-0592-Q007", "sibling_text": "type of alternator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "2. Types of generator/alternator carried onboard", "cross_family": false }, { "answer_id": "PF-C-002", "score": 0.6793110966682434, "sibling_score": 0.6793110966682434, "answer_score": null, "sibling_qid": "MUM-2026-06-3653-Q024", "sibling_text": "alternator parallel but pf is different", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Two alternators in parallel — same kW, different power factor: cause and action", "cross_family": false }, { "answer_id": "BL-ALT-C-003", "score": 0.6737692952156067, "sibling_score": 0.6737692952156067, "answer_score": null, "sibling_qid": "KOL-2018-06-2202-Q002", "sibling_text": "brushless and static alternator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Compare excitation types: brushed / static / brushless", "cross_family": false } ] }, { "qid": "MUM-2022-07-2131-Q002", "text": "STP working and principle. Wanted to hear air blower use on stp.", "family": "MARPOL - Annex IV (Sewage)", "subtopic": "STP / Sewage Treatment", "tid": "MUM-2022-07-2131", "tray": "new", "candidates": [ { "answer_id": "STP-SEW-008", "score": 0.5217323899269104, "sibling_score": 0.5217323899269104, "answer_score": null, "sibling_qid": "KOC-2025-08-0642-Q003", "sibling_text": "stp recirculation draw and explain the principle", "sibling_family": "MARPOL - Annex IV (Sewage)", "via": "sibling", "answer_title": "Working principle, reactions and recirculation", "cross_family": false }, { "answer_id": "STP-SEW-007", "score": 0.5083895325660706, "sibling_score": 0.5083895325660706, "answer_score": null, "sibling_qid": "CHE-2025-08-0026-Q005", "sibling_text": "stp what are the chamber which chamber required air why", "sibling_family": "MARPOL - Annex IV (Sewage)", "via": "sibling", "answer_title": "Components, chambers, piping and venting", "cross_family": false }, { "answer_id": "FWG-RO-001", "score": 0.45361971855163574, "sibling_score": 0.45361971855163574, "answer_score": null, "sibling_qid": "KOC-2026-08-2158-Q004", "sibling_text": "air ejector working principle and explanation", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "How is vacuum created in the FWG, why does it run under vacuum, and what if the vacuum will not come?", "cross_family": true } ] }, { "qid": "MUM-2022-07-2131-Q003", "text": "Propeller drop. Why and how to measure?", "family": "Shafting, Propeller & Rudder", "subtopic": "Propeller Drydock Checks / Propeller Shaft Measurements", "tid": "MUM-2022-07-2131", "tray": "review", "candidates": [ { "answer_id": "PROP-PN-C-002", "score": 0.6969814896583557, "sibling_score": 0.6969814896583557, "answer_score": 0.5511003375053406, "sibling_qid": "MUM-2026-04-2691-Q003", "sibling_text": "how to measure propeller drop", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Propeller drop — measurement and consequences", "cross_family": false }, { "answer_id": "STERN-TUBE-TAIL-SHAFT-002", "score": 0.6634601354598999, "sibling_score": 0.6634601354598999, "answer_score": 0.4522852212190628, "sibling_qid": "MUM-2022-10-0054-Q009", "sibling_text": "how propeller drop measured", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "", "cross_family": true }, { "answer_id": "RES-PROP-P03-003", "score": 0.466277539730072, "sibling_score": null, "answer_score": 0.466277539730072, "sibling_qid": "", "sibling_text": "3 propeller particulars and service symptoms pitch skew pbcf ballast slapping and astern vibration pitch the geometric advance per revolution with no slip measure with a pitch gauge pitchometer against the blade face at a defined radius commonly 0 7r or take it from the drawing pitch can vary radially so measure at several radii skew the blade tip swept back circumferentially from a radial referen", "sibling_family": "", "via": "answer_title", "answer_title": "3. Propeller particulars and service symptoms: pitch, skew, PBCF, ballast slapping and astern vibration", "cross_family": false } ] }, { "qid": "MUM-2022-07-2131-Q004", "text": "Checks on main engine after grounding.", "family": "2-Stroke - Operations & Casualty", "subtopic": "Casualty / Emergency Stop", "tid": "MUM-2022-07-2131", "tray": "review", "candidates": [ { "answer_id": "CAS-ESTOP-002", "score": 0.6793068051338196, "sibling_score": 0.6793068051338196, "answer_score": 0.6198307454586028, "sibling_qid": "KOL-2018-04-3136-Q003", "sibling_text": "ship aground what checks of main engine", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Main-engine checks after grounding, before turning or a kick", "cross_family": false }, { "answer_id": "RWX-CHK-001", "score": 0.6364205479621887, "sibling_score": 0.6364205479621887, "answer_score": null, "sibling_qid": "MUM-2026-06-3370-Q003", "sibling_text": "checks on main engine and auxiliary engine after bad weather and cross questions", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Engine-room and machinery checks before and after rough weather", "cross_family": false }, { "answer_id": "DCB-OVH-002", "score": 0.6352491974830627, "sibling_score": 0.6352491974830627, "answer_score": null, "sibling_qid": "KOL-2023-08-3954-Q006", "sibling_text": "any major overhauling in main engine", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Preparing for a complete unit overhaul or unit survey", "cross_family": false } ] }, { "qid": "MUM-2022-07-2132-Q001S3", "text": "jacket water pressure is fluctuating reason", "family": "2-Stroke - Operations & Casualty", "subtopic": "JCW Related Issues", "tid": "MUM-2022-07-2132", "tray": "review", "candidates": [ { "answer_id": "PCD-P01-06", "score": 0.7286017537117004, "sibling_score": 0.7286017537117004, "answer_score": null, "sibling_qid": "MUM-2025-05-2294-Q004", "sibling_text": "jacket water pump pressure gauge fluctuating state reasons", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Centrifugal pump — reasons for performance drop, low efficiency, vibration, and still-poor-after-overhaul", "cross_family": true }, { "answer_id": "JCW-SYS-002", "score": 0.5913227200508118, "sibling_score": 0.5913227200508118, "answer_score": null, "sibling_qid": "KOL-2017-04-3049-Q002", "sibling_text": "jw inlet temp fluctuating what to do", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "The ME jacket-water controller has failed, or inlet temperature is fluctuating - immediate action and how you resolve it", "cross_family": true }, { "answer_id": "BLR-STM-PR-B54-002", "score": 0.5637269020080566, "sibling_score": 0.5637269020080566, "answer_score": null, "sibling_qid": "KOC-2022-04-1784-Q005", "sibling_text": "during round steam pressure incresing suddenly reasons", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "On rounds the steam pressure is suddenly climbing — reasons, and what you do about it", "cross_family": true } ] }, { "qid": "MUM-2022-07-2132-Q001S4", "text": "how to order sea water pipe cross questions", "family": "Workshop & Welding", "subtopic": "Pipe Material", "tid": "MUM-2022-07-2132", "tray": "review", "candidates": [ { "answer_id": "PIPE-MAT-001", "score": 0.774515688419342, "sibling_score": 0.774515688419342, "answer_score": 0.41313842982053756, "sibling_qid": "KOL-2026-02-3916-Q006", "sibling_text": "how to order sea water pipe", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Ordering / specifying a replacement or sea-water pipe", "cross_family": false }, { "answer_id": "PIPEFAB-002", "score": 0.7549198865890503, "sibling_score": 0.7549198865890503, "answer_score": 0.4728661835193634, "sibling_qid": "MUM-2026-05-3248-Q010", "sibling_text": "how to order sea water pipe what things you need for ordering", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "What details are required to order a pipe, and how do you order one on board?", "cross_family": false }, { "answer_id": "PIPEFAB-010", "score": 0.40288397073745724, "sibling_score": null, "answer_score": 0.40288397073745724, "sibling_qid": "", "sibling_text": "how do you repair the copper pipe of the seawater pump discharge gauge small bore copper impulse line to the discharge pressure gauge isolate at the gauge cock root valve and depressurise before touching it it is a pump discharge under pressure", "sibling_family": "", "via": "answer_title", "answer_title": "How do you repair the copper pipe of the seawater pump discharge gauge?", "cross_family": false } ] }, { "qid": "MUM-2022-07-2134-Q001", "text": "What is fatigue, give one example of fatigue failure, what are we doing for it", "family": "Workshop & Welding", "subtopic": "Welding / NDT / Heat Treatment", "tid": "MUM-2022-07-2134", "tray": "new", "candidates": [ { "answer_id": "CFF-P02-001", "score": 0.6110403537750244, "sibling_score": 0.6110403537750244, "answer_score": 0.471693617105484, "sibling_qid": "MUM-2025-07-2816-Q012", "sibling_text": "what is fatigue failure", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Fatigue failure — what it is and where it occurs", "cross_family": true }, { "answer_id": "MNS-016", "score": 0.45028080344200133, "sibling_score": null, "answer_score": 0.45028080344200133, "sibling_qid": "", "sibling_text": "a motor shaft has broken why and how almost always fatigue say so first then explain what fatigue needs fatigue needs a cyclic stress plus a stress raiser plus time", "sibling_family": "", "via": "answer_title", "answer_title": "A motor shaft has broken — why, and how", "cross_family": false }, { "answer_id": "CRB-010", "score": 0.4463169068098068, "sibling_score": null, "answer_score": 0.4463169068098068, "sibling_qid": "", "sibling_text": "how is the connecting rod designed to cope with fatigue and what precautions avoid fatigue failure fatigue failure under cyclic fluctuating stress below the ultimate strength cracks initiate at stress raisers and propagate steel has an endurance limit the design keeps below design measures generous fillet radii at section changes and bore junctions smooth polished surfaces no sharp corners or tool", "sibling_family": "", "via": "answer_title", "answer_title": "How is the connecting rod designed to cope with fatigue, and what precautions avoid fatigue failure?", "cross_family": false } ] }, { "qid": "MUM-2022-07-2134-Q005", "text": "In the refer if you suspect air ingress, what will you check", "family": "Refrigeration & AC", "subtopic": "Air in System", "tid": "MUM-2022-07-2134", "tray": "review", "candidates": [ { "answer_id": "AIR-REF-004", "score": 0.6813111901283264, "sibling_score": 0.6813111901283264, "answer_score": null, "sibling_qid": "MUM-2025-06-2324-Q001", "sibling_text": "air ingress indications in refer and how to remove", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "4. Detecting and purging air from a refrigeration system", "cross_family": false }, { "answer_id": "AIR-REF-001", "score": 0.6715737581253052, "sibling_score": 0.6715737581253052, "answer_score": null, "sibling_qid": "KOC-2021-11-1770-Q005", "sibling_text": "how do you detect air in refer system", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "1. Indications that air is present in a refrigeration system", "cross_family": false }, { "answer_id": "AIR-REF-002", "score": 0.6341924071311951, "sibling_score": 0.6341924071311951, "answer_score": null, "sibling_qid": "MUM-2026-05-3257-Q004", "sibling_text": "indications of air in ref system", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "2. 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Indications that air is present in a refrigeration system", "cross_family": true } ] }, { "qid": "MUM-2022-08-0038-Q001", "text": "Type of ships sailed", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2022-08-0038", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8040724396705627, "sibling_score": 0.8040724396705627, "answer_score": null, "sibling_qid": "MUM-2026-02-1272-Q002", "sibling_text": "type of ships sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7889921069145203, "sibling_score": 0.7889921069145203, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7685424089431763, "sibling_score": 0.7685424089431763, "answer_score": 0.5075398802757263, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "MUM-2022-08-0038-Q002", "text": "What is smpep and difference between sopep and smpep.", "family": "MARPOL - 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Annex I (Oil)", "via": "sibling", "answer_title": "SOPEP vs SMPEP and Other Shipboard Plans; Drills", "cross_family": true } ] }, { "qid": "MUM-2022-08-0039-Q001", "text": "4 conventions and 4 codes", "family": "IMO Structure & Conventions", "subtopic": "IMO / Committees / Codes", "tid": "MUM-2022-08-0039", "tray": "review", "candidates": [ { "answer_id": "IMO-CODES-P03-001", "score": 0.7385177612304688, "sibling_score": 0.7385177612304688, "answer_score": 0.30081126391887664, "sibling_qid": "KOL-2026-05-4089-Q002", "sibling_text": "name any 4 convention and 4 code", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Important IMO conventions and codes: parent links", "cross_family": false }, { "answer_id": "IMO-CODES-P02-001", "score": 0.5769118666648865, "sibling_score": 0.5769118666648865, "answer_score": null, "sibling_qid": "KOL-2024-12-0897-Q004", "sibling_text": "code and convention", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "IMO instruments: convention, code, protocol, amendment, regulation, resolution and rule", "cross_family": false }, { "answer_id": "IMO-5PIL-007", "score": 0.3130082294344902, "sibling_score": null, "answer_score": 0.3130082294344902, "sibling_qid": "", "sibling_text": "codes protocols and amendments convention the parent treaty legal force code detailed technical operational requirements mandatory when referenced by a convention ism via solas ix isps via solas xi 2 igc ibc imdg imsbc fss lsa polar some codes are recommendatory", "sibling_family": "", "via": "answer_title", "answer_title": "Codes, protocols and amendments", "cross_family": false } ] }, { "qid": "MUM-2022-08-0039-Q002", "text": "STCW Manila Ammendments and details, different codes in stcw", "family": "Other Conventions", "subtopic": "STCW / Manila Amendments", "tid": "MUM-2022-08-0039", "tray": "review", "candidates": [ { "answer_id": "STCW-MAN-010", "score": 0.6910208463668823, "sibling_score": 0.6910208463668823, "answer_score": 0.4646572560071945, "sibling_qid": "KOL-2020-01-0379-Q006", "sibling_text": "why stcw came what is code what amendments have taken place in manila amendment", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What are the STCW 2010 Manila amendments, and what changed compared with STCW 1995?", "cross_family": false }, { "answer_id": "STCW-MAN-008", "score": 0.5619950294494629, "sibling_score": 0.5619950294494629, "answer_score": null, "sibling_qid": "KOC-2023-11-0249-Q001", "sibling_text": "stcw chapters and explain 5 6 latest amendments", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Explain STCW Chapter V and its special training requirements — including which chapter applies to a gas tanker, and what is required other than for tankers and passenger ships.", "cross_family": false }, { "answer_id": "STCW-MAN-002", "score": 0.5578224062919617, "sibling_score": 0.5578224062919617, "answer_score": null, "sibling_qid": "KOC-2024-11-0455-Q005", "sibling_text": "stcw", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Name the chapters of the STCW Convention and explain them.", "cross_family": false } ] }, { "qid": "MUM-2022-08-0039-Q003", "text": "Ism code", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "MUM-2022-08-0039", "tray": "review", "candidates": [ { "answer_id": "ISM-ELEM-002", "score": 0.7952260375022888, "sibling_score": 0.7952260375022888, "answer_score": 0.4160147994756698, "sibling_qid": "MUM-2026-06-3653-Q001", "sibling_text": "ism code", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the ISM Code?", "cross_family": false }, { "answer_id": "ISM-ELEM-003", "score": 0.41524860858917234, "sibling_score": null, "answer_score": 0.41524860858917234, "sibling_qid": "", "sibling_text": "elements chapters structure of the ism code part a implementation the 12 elements 1 general 1 1 definitions 1 2 objectives 1 3 application 1 4 functional requirements for an sms", "sibling_family": "", "via": "answer_title", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": false }, { "answer_id": "ISM-AUD-P02-002", "score": 0.38827036023139955, "sibling_score": null, "answer_score": 0.38827036023139955, "sibling_qid": "", "sibling_text": "ism code what it is purpose objectives and structure full name carries both limbs safe operation of ships and pollution prevention never drop the pollution half adopted by resolution a 741 18 in 1993 given legal force through solas chapter ix in force 1 july 1998 phase 1", "sibling_family": "", "via": "answer_title", "answer_title": "ISM Code — what it is, purpose, objectives and structure", "cross_family": false } ] }, { "qid": "MUM-2022-08-0039-Q004", "text": "Solas chapters", "family": "SOLAS - General (HOLD)", "subtopic": "Solas Chapters Overview", "tid": "MUM-2022-08-0039", "tray": "review", "candidates": [ { "answer_id": "SOLAS-CH-015", "score": 0.74762362241745, "sibling_score": 0.74762362241745, "answer_score": 0.5634366542100906, "sibling_qid": "MUM-2026-03-0864-Q021", "sibling_text": "solas chapters all", "sibling_family": "SOLAS - General (HOLD)", "via": "sibling", "answer_title": "SOLAS chapters overview - current count and scope", "cross_family": false }, { "answer_id": "SOLAS-OVW-001", "score": 0.7261297702789307, "sibling_score": 0.7261297702789307, "answer_score": 0.44192104935646054, "sibling_qid": "KOL-2022-07-0649-Q003", "sibling_text": "solas chapters", "sibling_family": "", "via": "sibling", "answer_title": "SOLAS — how many chapters, and what each covers", "cross_family": false }, { "answer_id": "SOLAS12-C-001", "score": 0.7054650783538818, "sibling_score": 0.7054650783538818, "answer_score": null, "sibling_qid": "KOC-2026-01-0788-Q005", "sibling_text": "solas chapter xii and how many chapters", "sibling_family": "", "via": "sibling", "answer_title": "Explain SOLAS Chapter XII for bulk carriers — oral-exam overview", "cross_family": false } ] }, { "qid": "MUM-2022-08-0040-Q001", "text": "Type of vessel sailed", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2022-08-0040", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8422918319702148, "sibling_score": 0.8422918319702148, "answer_score": null, "sibling_qid": "CHE-2026-02-0481-Q001", "sibling_text": "type of vessels sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8255379796028137, "sibling_score": 0.8255379796028137, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.804318368434906, "sibling_score": 0.804318368434906, "answer_score": null, "sibling_qid": "CHE-2026-03-0255-Q001", "sibling_text": "type of vessel and engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "MUM-2022-08-0041-Q001", "text": "What is cofs", "family": "Maritime Law & Certificates", "subtopic": "COFS", "tid": "MUM-2022-08-0041", "tray": "new", "candidates": [ { "answer_id": "CLC-CIV-B-002", "score": 0.4596782326698303, "sibling_score": 0.4596782326698303, "answer_score": null, "sibling_qid": "KOL-2025-10-1110-Q009", "sibling_text": "ciofs", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "The civil-liability map: which compensation convention applies to what", "cross_family": true }, { "answer_id": "CERT-LIST-P02-003", "score": 0.43299657106399536, "sibling_score": 0.43299657106399536, "answer_score": null, "sibling_qid": "KOC-2025-01-2059-Q008", "sibling_text": "cof and cof related surveys internal", "sibling_family": "Surveys - 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Type of bearing on those turbocharger . Emergency lubrication required during blackout. What provisions there to lubricate bearings of Aux engine after blackout when engine suddenly stopped.", "family": "Turbocharger", "subtopic": "TC Bearing", "tid": "MUM-2022-08-0941", "tray": "review", "candidates": [ { "answer_id": "TURBO-CS-P03-008", "score": 0.6894160509109497, "sibling_score": 0.6894160509109497, "answer_score": 0.5668753683567047, "sibling_qid": "KOL-2022-07-3554-Q002", "sibling_text": "types of turbocharger types of bearing bearing damaged how you will proceed", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharger bearings: types, lubrication, damage and action", "cross_family": false }, { "answer_id": "TURBO-CS-P02-003", "score": 0.681938111782074, "sibling_score": 0.681938111782074, "answer_score": null, "sibling_qid": "KOC-2025-10-1964-Q003", "sibling_text": "aux eng turbocharger overhaul and what all checks thrust bearing cross question", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharger overhaul — procedure and checks (incl. thrust bearing)", "cross_family": false }, { "answer_id": "TC-CS-P01-013", "score": 0.674207866191864, "sibling_score": 0.674207866191864, "answer_score": 0.6093072354793548, "sibling_qid": "KOC-2024-07-1847-Q007", "sibling_text": "lubrication of ae turbocharger", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "M·Lubrication of the auxiliary-engine turbocharger", "cross_family": false } ] }, { "qid": "MUM-2022-08-0942-Q003", "text": "Turbine blades fixing arrangment .", "family": "Steam & Turbine Plant", "subtopic": "Turbine Construction / Blading / Stages", "tid": "MUM-2022-08-0942", "tray": "review", "candidates": [ { "answer_id": "TC-CONST-004", "score": 0.6569235920906067, "sibling_score": 0.6569235920906067, "answer_score": 0.4707868337631225, "sibling_qid": "KOL-2024-11-4042-Q006", "sibling_text": "turbocharger blade fitting arrangements", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbine-side components: nozzle rings, vanes and blade fitting", "cross_family": true }, { "answer_id": "TURBO-CS-P03-004", "score": 0.6363565325737, "sibling_score": 0.6363565325737, "answer_score": 0.5620766311883926, "sibling_qid": "KOL-2021-08-1614-Q005", "sibling_text": "t c blades arrangements", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Rotor blade fixing: fir-tree / bulb root, damping (lacing) wire", "cross_family": true }, { "answer_id": "TURBO-CS-P02-010", "score": 0.6241047382354736, "sibling_score": 0.6241047382354736, "answer_score": 0.5840249121189117, "sibling_qid": "KOL-2019-07-1466-Q003", "sibling_text": "turbocharger blade fixing arrangement and related cross question", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbine blade fixing, connection and material", "cross_family": true } ] }, { "qid": "MUM-2022-08-1017-Q002", "text": "Sailing time n type of engine done.", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": 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Annex I (Oil)", "via": "sibling", "answer_title": "Machinery-space (engine room) bilge discharge criteria — outside a special area", "cross_family": false } ] }, { "qid": "MUM-2022-09-0049-Q001", "text": "Type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2022-09-0049", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8366292715072632, "sibling_score": 0.8366292715072632, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8018827438354492, "sibling_score": 0.8018827438354492, "answer_score": 0.5473108768463134, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8003316521644592, "sibling_score": 0.8003316521644592, "answer_score": 0.5218650102615356, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2022-09-0049-Q003", "text": "SEQ survey in detail all machinery regulations", "family": "Surveys - 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Bulk Carriers", "subtopic": "IMSBC / TML", "tid": "MUM-2022-09-0050", "tray": "review", "candidates": [ { "answer_id": "SOLAS12-BC-B-001", "score": 0.8332371115684509, "sibling_score": 0.8332371115684509, "answer_score": null, "sibling_qid": "MUM-2026-06-3436-Q003", "sibling_text": "additional safety measures in bulk carrier", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Additional safety measures for bulk carriers (SOLAS Chapter XII)", "cross_family": false }, { "answer_id": "BC-IMSBC-001", "score": 0.8196535706520081, "sibling_score": 0.8196535706520081, "answer_score": null, "sibling_qid": "MUM-2026-06-3541-Q003", "sibling_text": "what additional safety of bulk carrier", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "1. 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Bilge cleaning and compartment-entry precautions", "cross_family": true }, { "answer_id": "MR-DS-PV-B-003", "score": 0.41930776834487915, "sibling_score": 0.41930776834487915, "answer_score": null, "sibling_qid": "KOC-2022-12-0120-Q012", "sibling_text": "is it ok to pump out deck seal water", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "3. 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sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.836710512638092, "sibling_score": 0.836710512638092, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.5173083961009979, "sibling_score": null, "answer_score": 0.5173083961009979, "sibling_qid": "", "sibling_text": "type a and type b ships how form and cargo set the freeboard", "sibling_family": "", "via": "answer_title", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "MUM-2022-09-2146-Q007", "text": "Type of steel used onboard and % of carbon in high tensile steel ?", "family": "Materials & Metallurgy", "subtopic": "Steel types, killed steel, high-tensile steel", "tid": "MUM-2022-09-2146", "tray": "new", "candidates": [ { "answer_id": "MATPROP-A-001", "score": 0.6041053533554077, "sibling_score": 0.6041053533554077, "answer_score": 0.49234763681888577, "sibling_qid": "KOL-2020-11-3358-Q001", "sibling_text": "percentage of carbon in basic steel percentage of carbon in high carbon steel what property is enhanced in high carbon steel where is high carbon steel used what is strength", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Steel types and composition", "cross_family": true }, { "answer_id": "STEEL-GR-003", "score": 0.585946798324585, "sibling_score": 0.585946798324585, "answer_score": 0.4762822508811951, "sibling_qid": "MUM-2026-06-3576-Q002", "sibling_text": "high tensile strength steel used where on ship and why", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "High-tensile steel — where and why it is used", "cross_family": true }, { "answer_id": "STEEL-GR-002", "score": 0.5683530569076538, "sibling_score": 0.5683530569076538, "answer_score": null, "sibling_qid": "KOL-2026-05-0047-Q006", "sibling_text": "plain carbon steel carbon contain", "sibling_family": "", "via": "sibling", "answer_title": "Mild steel — composition, use, and how it differs from cast iron", "cross_family": false } ] }, { "qid": "MUM-2022-09-2146-Q008", "text": "What is killed steel?", "family": "Materials & Metallurgy", "subtopic": "Steel types, killed steel, high-tensile steel", "tid": "MUM-2022-09-2146", "tray": "new", "candidates": [ { "answer_id": "ICD-065-002", "score": 0.5122266411781311, "sibling_score": 0.5122266411781311, "answer_score": null, "sibling_qid": "MUM-2023-12-1068-Q005", "sibling_text": "what is eutectic steel", "sibling_family": "Materials & Metallurgy", "via": "sibling", "answer_title": "What is eutectic steel?", "cross_family": false }, { "answer_id": "HT-A-001", "score": 0.47773584723472595, "sibling_score": 0.47773584723472595, "answer_score": 0.3738235354423523, "sibling_qid": "MUM-2025-12-2522-Q001", "sibling_text": "heat treatment process of steel", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Heat treatment: what it is, the main methods, and why it is done", "cross_family": true }, { "answer_id": "HT-A-002", "score": 0.4745972752571106, "sibling_score": 0.4745972752571106, "answer_score": null, "sibling_qid": "MUM-2026-05-3276-Q006", "sibling_text": "normalising of steel", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Annealing: process, cooling control, and the reused copper washer", "cross_family": true } ] }, { "qid": "MUM-2022-09-2147-Q002", "text": "Types of grease? What is drop point of grease?", "family": "Lube Oil System", "subtopic": "Grease / Dropping Point", "tid": "MUM-2022-09-2147", "tray": "new", "candidates": [ { "answer_id": "LO-TEST-P01-005", "score": 0.5945740938186646, "sibling_score": 0.5945740938186646, "answer_score": 0.4702210187911987, "sibling_qid": "KOC-2026-09-2182-Q012", "sibling_text": "gear oil properties", "sibling_family": "Lube Oil System", "via": "sibling", "answer_title": "Lube-oil properties, types and selection by duty", "cross_family": false }, { "answer_id": "VISC-IDX-002", "score": 0.5621536374092102, "sibling_score": 0.5621536374092102, "answer_score": 0.4242435872554779, "sibling_qid": "KOC-2026-03-1108-Q005", "sibling_text": "lube oil properties viscosity index and load bearing capacity is imp", "sibling_family": "Lube Oil System", "via": "sibling", "answer_title": "Which lube-oil properties are important, including VI and load-bearing capacity?", "cross_family": false }, { "answer_id": "REEF-COMP-003", "score": 0.5408591032028198, "sibling_score": 0.5408591032028198, "answer_score": null, "sibling_qid": "MUM-2026-09-3942-Q007", "sibling_text": "refer lube oil properties", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Refrigeration-compressor lube oil — properties, selection, and its jobs beyond lubrication", "cross_family": true } ] }, { "qid": "MUM-2022-09-2696-Q006", "text": "Anti friction bearing ?", "family": "Auxiliary Equipment", "subtopic": "Anti-Friction Bearing", "tid": "MUM-2022-09-2696", "tray": "review", "candidates": [ { "answer_id": "BRG-NOM-002", "score": 0.669624388217926, "sibling_score": 0.669624388217926, "answer_score": 0.5097579479217529, "sibling_qid": "MUM-2026-06-3376-Q015", "sibling_text": "ball bearing where it is used", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Ball, Roller, Radial and Axial Bearings — Choosing the Type", "cross_family": false }, { "answer_id": "THRUST-BRG-B-001", "score": 0.6663486361503601, "sibling_score": 0.6663486361503601, "answer_score": null, "sibling_qid": "MUM-2026-06-3419-Q010", "sibling_text": "what type of thrust is taken by ball bearing and roller bearing", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Thrust block — construction, location and how thrust reaches the hull", "cross_family": false }, { "answer_id": "BRG-NOM-003", "score": 0.6566617488861084, "sibling_score": 0.6566617488861084, "answer_score": null, "sibling_qid": "MUM-2026-07-3759-Q003", "sibling_text": "thin shell bearing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Thin-Shell, Bi-Metal and Tri-Metal Bearings — Construction and Why Thin-Shell", "cross_family": true } ] }, { "qid": "MUM-2022-09-2696-Q008", "text": "5 shell and tube type heat exchanger arrangements for expansion in body", "family": "Heat Exchangers & Coolers", "subtopic": "Expansion Arrangement", "tid": "MUM-2022-09-2696", "tray": "review", "candidates": [ { "answer_id": "STHX-001", "score": 0.6636983156204224, "sibling_score": 0.6636983156204224, "answer_score": 0.5188827782869339, "sibling_qid": "MUM-2026-05-3327-Q008", "sibling_text": "shell and tube heat exchanger tube construction", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "STHX-01 — Construction, parts, materials, tube fitting, pass arrangement and flow", "cross_family": false }, { "answer_id": "STHX-006", "score": 0.6548855900764465, "sibling_score": 0.6548855900764465, "answer_score": null, "sibling_qid": "CHE-2026-08-0670-Q006", "sibling_text": "heat exchanger overhaul shell n tube", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "STHX-06 — Cleaning, descaling, inspection, maintenance and precautions", "cross_family": false }, { "answer_id": "SH-332-002", "score": 0.6423419117927551, "sibling_score": 0.6423419117927551, "answer_score": null, "sibling_qid": "MUM-2024-07-0960-Q007", "sibling_text": "sh tubes expansion arrangement", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Where superheater tubes are fitted; attachment, support and expansion", "cross_family": true } ] }, { "qid": "MUM-2022-10-0053-Q001", "text": "Type of Ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2022-10-0053", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8360850214958191, "sibling_score": 0.8360850214958191, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8013965487480164, "sibling_score": 0.8013965487480164, "answer_score": 0.5467735856771468, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.799839973449707, "sibling_score": 0.799839973449707, "answer_score": 0.5213733673095703, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2022-10-0053-Q006", "text": "rudder inspections in drydock..how will you boxback the rudder", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "MUM-2022-10-0053", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.6869975924491882, "sibling_score": 0.6869975924491882, "answer_score": 0.4500364512205124, "sibling_qid": "MUM-2026-07-3733-Q009", "sibling_text": "checks in rudder in dry dock", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "DUS-P5-05", "score": 0.6583142280578613, "sibling_score": 0.6583142280578613, "answer_score": 0.4601410716772079, "sibling_qid": "MUM-2026-05-2994-Q006", "sibling_text": "rudder check in dry dock", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Rudder checks and rudder-blade tightness/leak test in drydock", "cross_family": false }, { "answer_id": "RUD-DROP-002", "score": 0.46292698085308076, "sibling_score": null, "answer_score": 0.46292698085308076, "sibling_qid": "", "sibling_text": "rudder clearances which where and how taken pintle bush clearance at each pintle top bottom f a and p s on long feeler gauges or pintle od vs bush id by caliper top mid bottom the maximum is the clearance renew the bush at the maker class limit carrier bearing wear down the rudder drop poker trammel gauge hull datum to stock mark against the recorded newbuilding reading", "sibling_family": "", "via": "answer_title", "answer_title": "Rudder clearances: which, where and how taken", "cross_family": false } ] }, { "qid": "MUM-2022-10-0053-Q007", "text": "SEQ survey in detail", "family": "Surveys - Statutory", "subtopic": "Safety Equipment Survey", "tid": "MUM-2022-10-0053", "tray": "review", "candidates": [ { "answer_id": "SEQ-330-001", "score": 0.7082017064094543, "sibling_score": 0.7082017064094543, "answer_score": null, "sibling_qid": "KOC-2025-01-0500-Q003", "sibling_text": "seq survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Safety Equipment survey — what it is, its scope, and what is checked", "cross_family": false }, { "answer_id": "SEQ-330-003", "score": 0.6010745763778687, "sibling_score": 0.6010745763778687, "answer_score": 0.33684455305337907, "sibling_qid": "KOC-2024-09-0418-Q005", "sibling_text": "seq survey apart from lsa and ffa", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "SEQ survey scope apart from LSA, FFA and navigation items", "cross_family": false }, { "answer_id": "SEQ-330-002", "score": 0.5755236744880676, "sibling_score": 0.5755236744880676, "answer_score": null, "sibling_qid": "KOC-2024-12-2058-Q003", "sibling_text": "explain seq survey preparations as a second engineer", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Preparing the ship for the Safety Equipment survey as Second Engineer", "cross_family": false } ] }, { "qid": "MUM-2022-10-0054-Q001", "text": "Type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2022-10-0054", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8360850214958191, "sibling_score": 0.8360850214958191, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8013965487480164, "sibling_score": 0.8013965487480164, "answer_score": 0.5467735856771468, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.799839973449707, "sibling_score": 0.799839973449707, "answer_score": 0.5213733673095703, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2022-10-0054-Q007", "text": "Measures for junior engrs in MLC", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2022-10-0054", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-004", "score": 0.4232449233531952, "sibling_score": 0.4232449233531952, "answer_score": null, "sibling_qid": "KOC-2022-01-0051-Q006", "sibling_text": "young seafarer as 2e what to ensure explained him about the mlc work and rest hours and also the night work criteria as second eng will not allow young seafarer to do critical jobs alone", "sibling_family": "MLC", "via": "sibling", "answer_title": "Young seafarers — minimum age, night work, and what the 2/E must ensure", "cross_family": false }, { "answer_id": "JOIN-HDVR-003", "score": 0.40422603487968445, "sibling_score": 0.40422603487968445, "answer_score": 0.3380312293767929, "sibling_qid": "MUM-2026-06-3643-Q003", "sibling_text": "as a 2e under which regulation you can train the junior engineer", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Familiarising and training a newly joined junior engineer as Second Engineer", "cross_family": true }, { "answer_id": "STCW-MAN-005", "score": 0.3789086937904358, "sibling_score": 0.3789086937904358, "answer_score": 0.29957861006259917, "sibling_qid": "MUM-2022-10-0055-Q005", "sibling_text": "under stcw what are requirements for certification for junior engineers", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Where is an engineer's competency laid down in STCW, and what are the certification requirements for junior engineers?", "cross_family": true } ] }, { "qid": "MUM-2022-10-0055-Q001", "text": "Latest MEPC resolution when and what?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Scavenging / Scavenge Fire", "tid": "MUM-2022-10-0055", "tray": "new", "candidates": [ { "answer_id": "MEPC-GHG-001", "score": 0.49754828214645386, "sibling_score": 0.49754828214645386, "answer_score": 0.3768048048019409, "sibling_qid": "MUM-2026-07-3747-Q007", "sibling_text": "when was last mepc meeting held and amendments", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "What was decided at the latest MEPC meeting? Explain the latest MEPC circular and outcomes.", "cross_family": true }, { "answer_id": "IND-CARD-004", "score": 0.4379537105560303, "sibling_score": 0.4379537105560303, "answer_score": null, "sibling_qid": "MUM-2022-09-1022-Q005", "sibling_text": "what is mep significance", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "How are MEP, diagram area and engine power calculated from indicator-card data?", "cross_family": false }, { "answer_id": "IMO-5PIL-009", "score": 0.42606714367866516, "sibling_score": 0.42606714367866516, "answer_score": null, "sibling_qid": "MUM-2025-05-0247-Q001", "sibling_text": "mepc last meeting when it was held and what highlights", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Latest MEPC meeting — highlights", "cross_family": true } ] }, { "qid": "MUM-2022-10-0055-Q003", "text": "What is FAME ?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Quality / CCAI", "tid": "MUM-2022-10-0055", "tray": "new", "candidates": [ { "answer_id": "BIO-FUEL-005", "score": 0.6080721616744995, "sibling_score": 0.6080721616744995, "answer_score": 0.2212465226650238, "sibling_qid": "MUM-2026-01-0674-Q008", "sibling_text": "what is fame", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Biofuel and FAME as marine fuel", "cross_family": false }, { "answer_id": "FQCC-583-A-004", "score": 0.6077427864074707, "sibling_score": 0.6077427864074707, "answer_score": 0.2878396213054657, "sibling_qid": "MUM-2026-06-3392-Q001", "sibling_text": "what is fame", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "FAME — what it is, why it is blended, and the limits", "cross_family": false }, { "answer_id": "EFBF-330-004", "score": 0.6075358390808105, "sibling_score": 0.6075358390808105, "answer_score": 0.29619973003864286, "sibling_qid": "MUM-2026-07-3684-Q003", "sibling_text": "what is fame", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "What is FAME?", "cross_family": false } ] }, { "qid": "MUM-2022-10-0055-Q006", "text": "What ism audit what is corrective and preventive action for a NC", "family": "ISM Code", "subtopic": "Major / Minor NC", "tid": "MUM-2022-10-0055", "tray": "new", "candidates": [ { "answer_id": "ISM-SMC-B-001", "score": 0.5576416850090027, "sibling_score": 0.5576416850090027, "answer_score": null, "sibling_qid": "MUM-2022-12-0074-Q012", "sibling_text": "ism audit procedure types of doc types of smc when who issued nc mnc define objective evidence", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "SMC — purpose, contents, issue and validity", "cross_family": false }, { "answer_id": "ISMNC-008", "score": 0.5240229964256287, "sibling_score": 0.5240229964256287, "answer_score": 0.39110566675662994, "sibling_qid": "MUM-2026-01-0682-Q007", "sibling_text": "what is mnc including corrective action plan", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Explain a major non-conformity including the corrective action plan.", "cross_family": false }, { "answer_id": "ISM-AUDIT-P01-002", "score": 0.520107626914978, "sibling_score": 0.520107626914978, "answer_score": null, "sibling_qid": "KOC-2024-01-0289-Q003", "sibling_text": "audits done to maintain ism certification", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM/SMS audits and verifications — types, who conducts them, intervals and validity", "cross_family": false } ] }, { "qid": "MUM-2022-10-0055-Q014", "text": "Can't remember all questions. Posting whatever I remember. Total time of oral around 1 hr ( only)", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2022-10-0055", "tray": "new", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.5475351810455322, "sibling_score": 0.5475351810455322, "answer_score": null, "sibling_qid": "MUM-2026-03-1294-Q001", "sibling_text": "status of writtens and orals", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": false }, { "answer_id": "XFMR-THY-E-004", "score": 0.5359827280044556, "sibling_score": 0.5359827280044556, "answer_score": null, "sibling_qid": "MUM-2026-02-1969-Q013", "sibling_text": "what is humming of the transformer cross questions surveyor was good and was listening for answers told me to wait in lobby after 30 mins internal asked how was your oral i said good then internal started his set of questions", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Humming and magnetostriction", "cross_family": true }, { "answer_id": "ISM-AUDIT-P01-001", "score": 0.5211889743804932, "sibling_score": 0.5211889743804932, "answer_score": null, "sibling_qid": "KOC-2021-12-0044-Q007", "sibling_text": "ism survey preparation explain fully but explain slowly he want to listen in long duration i clubed everything together so i ended up in short time", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Preparing engine room, records and documents for ISM/SMS audit (2/E)", "cross_family": true } ] }, { "qid": "MUM-2022-10-0057-Q003", "text": "ORB WEEKLY ENTRIES", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "MUM-2022-10-0057", "tray": "review", "candidates": [ { "answer_id": "ORB-IOPP-OWS-004", "score": 0.8045303225517273, "sibling_score": 0.8045303225517273, "answer_score": 0.3656330496072769, "sibling_qid": "KOC-2025-01-2059-Q013", "sibling_text": "weekly entries of orb internal", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Weekly ORB entries — the mandatory sludge retention record, the bunker entry, and what is voluntary", "cross_family": false }, { "answer_id": "OWS-ORB-006", "score": 0.6140912175178528, "sibling_score": 0.6140912175178528, "answer_score": null, "sibling_qid": "MUM-2024-02-0162-Q004", "sibling_text": "orb entries", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "6. Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-002", "score": 0.5808972716331482, "sibling_score": 0.5808972716331482, "answer_score": null, "sibling_qid": "CHE-2024-10-0509-Q002", "sibling_text": "orb entries all in detail", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "The Oil Record Book Part I — purpose, the letter codes, and how entries are made", "cross_family": false } ] }, { "qid": "MUM-2022-10-0057-Q006", "text": "RUDDER PINTLE CLEARANCES CHECKS", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "MUM-2022-10-0057", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.7072814106941223, "sibling_score": 0.7072814106941223, "answer_score": 0.46040452420711514, "sibling_qid": "KOL-2020-09-3346-Q009", "sibling_text": "clearances that you will measure for propellor and rudder in drydock how to check pintle clearance without removing rudder from place finally can breathe freely thanx everyone for all the help", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "RUD-DROP-002", "score": 0.5765678882598877, "sibling_score": null, "answer_score": 0.5765678882598877, "sibling_qid": "", "sibling_text": "rudder clearances which where and how taken pintle bush clearance at each pintle top bottom f a and p s on long feeler gauges or pintle od vs bush id by caliper top mid bottom the maximum is the clearance renew the bush at the maker class limit carrier bearing wear down the rudder drop poker trammel gauge hull datum to stock mark against the recorded newbuilding reading", "sibling_family": "", "via": "answer_title", "answer_title": "Rudder clearances: which, where and how taken", "cross_family": false }, { "answer_id": "DUS-P5-05", "score": 0.4889965713024139, "sibling_score": null, "answer_score": 0.4889965713024139, "sibling_qid": "", "sibling_text": "rudder checks and rudder blade tightness leak test in drydock visual checks coating condition cavitation erosion on the blade leading edge propeller side face sacrificial anodes against the approved cathodic protection plan grounding continuity against the approved acceptance criterion plate and weld cracks pintle clearance measured with feeler the numerical acceptance limit is class specific and ", "sibling_family": "", "via": "answer_title", "answer_title": "Rudder checks and rudder-blade tightness/leak test in drydock", "cross_family": false } ] }, { "qid": "MUM-2022-10-0059-Q002", "text": "Type of ships?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2022-10-0059", "tray": "review", "candidates": [ { "answer_id": "LLST-AB-001", "score": 0.828616201877594, "sibling_score": 0.828616201877594, "answer_score": 0.5267254054546356, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.7948365211486816, "sibling_score": 0.7948365211486816, "answer_score": 0.5289259433746337, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.7895225286483765, "sibling_score": 0.7895225286483765, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false } ] }, { "qid": "MUM-2022-10-0059-Q008", "text": "L/b falls wires stability requirement", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Davit / Release Gear", "tid": "MUM-2022-10-0059", "tray": "new", "candidates": [ { "answer_id": "DRG-B-006", "score": 0.5132608413696289, "sibling_score": 0.5132608413696289, "answer_score": null, "sibling_qid": "KOL-2025-09-1032-Q006", "sibling_text": "maintenance on falls of lb", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Falls — maintenance, end-for-ending and renewal", "cross_family": false }, { "answer_id": "GZKN-P02-001", "score": 0.47873708605766296, "sibling_score": 0.47873708605766296, "answer_score": null, "sibling_qid": "KOL-2020-01-3979-Q003", "sibling_text": "intact stability requirements what is cross curve of stability", "sibling_family": "", "via": "sibling", "answer_title": "Cross curves of stability (KN curves) — draw, explain, and use to build the GZ curve", "cross_family": false }, { "answer_id": "LSA-LB-A-001", "score": 0.47528204321861267, "sibling_score": 0.47528204321861267, "answer_score": null, "sibling_qid": "MUM-2026-06-3602-Q010", "sibling_text": "solas requirement for lifeboats falls wire", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "SOLAS requirements for lifeboats", "cross_family": false } ] }, { "qid": "MUM-2022-10-0060-Q005", "text": "Lifebuoy solas requirement", "family": "SOLAS - LSA & Lifeboats", "subtopic": "LIFEBUOY", "tid": "MUM-2022-10-0060", "tray": "review", "candidates": [ { "answer_id": "LRHR-A-001", "score": 0.7174038290977478, "sibling_score": 0.7174038290977478, "answer_score": null, "sibling_qid": "KOL-2016-12-0038-Q005", "sibling_text": "life raft solas requirement", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "SOLAS requirement for liferafts on a cargo ship — number and total capacity", "cross_family": false }, { "answer_id": "LSA-LB-A-001", "score": 0.7107864022254944, "sibling_score": 0.7107864022254944, "answer_score": null, "sibling_qid": "NOI-2026-09-0020-Q005", "sibling_text": "solas requirement for a life boat", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "SOLAS requirements for lifeboats", "cross_family": false }, { "answer_id": "LRHR-B-001", "score": 0.7095754146575928, "sibling_score": 0.7095754146575928, "answer_score": null, "sibling_qid": "CHE-2025-08-0039-Q013", "sibling_text": "life raft requirement as per solas", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What does SOLAS require for liferafts on a cargo ship — how many, what capacity, and the forward raft?", "cross_family": false } ] }, { "qid": "MUM-2022-10-0944-Q001", "text": "Type of engine", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2022-10-0944", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.8005335330963135, "sibling_score": 0.8005335330963135, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.792962908744812, "sibling_score": 0.792962908744812, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-001", "score": 0.45256524085998534, "sibling_score": null, "answer_score": 0.45256524085998534, "sibling_qid": "", "sibling_text": "1 turbocharger type main engine vs generator engine compressor is centrifugal in both cases only the turbine type differs large slow speed main engine axial flow turbine single stage constant pressure system", "sibling_family": "", "via": "answer_title", "answer_title": "1. Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "MUM-2022-10-0944-Q008", "text": "Foaming and priming ?", "family": "Boilers - Operations & Firing", "subtopic": "Boiler Operations", "tid": "MUM-2022-10-0944", "tray": "new", "candidates": [ { "answer_id": "FOAM-SYS-P06-002", "score": 0.5684171319007874, "sibling_score": 0.5684171319007874, "answer_score": null, "sibling_qid": "CHE-2026-08-3878-Q006", "sibling_text": "foam maintenance", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "2. Maintenance routines — fixed foam system & concentrate", "cross_family": true }, { "answer_id": "FOAM-SYS-P04-003", "score": 0.5656555891036987, "sibling_score": 0.5656555891036987, "answer_score": 0.41999110877513884, "sibling_qid": "CHE-2026-03-0128-Q004", "sibling_text": "how foam generated", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "2. How mechanical foam is produced", "cross_family": true }, { "answer_id": "FOAM-P01-005", "score": 0.5445041656494141, "sibling_score": 0.5445041656494141, "answer_score": null, "sibling_qid": "MUM-2026-09-3875-Q004", "sibling_text": "foam calculation", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Calculating foam quantity/capacity for a fixed deck foam system", "cross_family": true } ] }, { "qid": "MUM-2022-10-1025-Q001", "text": "What all types of engine you worked on?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2022-10-1025", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.7113556265830994, "sibling_score": 0.7113556265830994, "answer_score": null, "sibling_qid": "KOL-2026-05-4244-Q002", "sibling_text": "engines you have worked on", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.680354654788971, "sibling_score": 0.680354654788971, "answer_score": null, "sibling_qid": "CHE-2026-04-0506-Q003", "sibling_text": "types of engine you worked specifications of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false }, { "answer_id": "MCC-MEB-P01-001", "score": 0.6681175231933594, "sibling_score": 0.6681175231933594, "answer_score": null, "sibling_qid": "MUM-2026-09-3997-Q002", "sibling_text": "type of engine worked me mcc me b and rta", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "MC-C (\"Compact\") engine — design and the main constructional differences from MC", "cross_family": false } ] }, { "qid": "MUM-2022-10-1025-Q003", "text": "What is stress corrosion?", "family": "NDT & Material Testing", "subtopic": "Hydrogen Embrittlement", "tid": "MUM-2022-10-1025", "tray": "review", "candidates": [ { "answer_id": "MATPROP-A-005", "score": 0.7360170483589172, "sibling_score": 0.7360170483589172, "answer_score": 0.5339539349079132, "sibling_qid": "MUM-2026-09-3891-Q001", "sibling_text": "stress corrosion", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Corrosion and degradation mechanisms", "cross_family": false }, { "answer_id": "CFF-P02-006", "score": 0.6216091513633728, "sibling_score": 0.6216091513633728, "answer_score": 0.5150103807449341, "sibling_qid": "MUM-2026-06-3549-Q008", "sibling_text": "what is corrosion fatigue", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Corrosion fatigue", "cross_family": false }, { "answer_id": "SUB-CORR-001", "score": 0.6012118458747864, "sibling_score": 0.6012118458747864, "answer_score": null, "sibling_qid": "MUM-2026-08-3855-Q013", "sibling_text": "what is substaincial corrosion", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "SUB-CORR-01 — What is substantial corrosion, and how is it identified against survey limits?", "cross_family": true } ] }, { "qid": "MUM-2022-10-1027-Q004", "text": "CALORIFIER MOUNTINGS", "family": "Boilers - Construction & Components", "subtopic": "Cascade Tank / Condenser", "tid": "MUM-2022-10-1027", "tray": "review", "candidates": [ { "answer_id": "FURN-REF-004", "score": 0.7256155610084534, "sibling_score": 0.7256155610084534, "answer_score": 0.45897742211818693, "sibling_qid": "KOL-2025-06-1808-Q004", "sibling_text": "boiler furnace mountings", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Boiler furnace construction, corrugation, swirl / contraction and furnace mountings", "cross_family": false }, { "answer_id": "SH-332-005", "score": 0.5898025035858154, "sibling_score": 0.5898025035858154, "answer_score": null, "sibling_qid": "KOL-2025-07-1999-Q005", "sibling_text": "attemperator in boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Desuperheater / attemperator: what, why, and superheat control", "cross_family": false }, { "answer_id": "BLR-TUBE-P01-003", "score": 0.5605578422546387, "sibling_score": 0.5605578422546387, "answer_score": null, "sibling_qid": "KOL-2021-09-1625-Q003", "sibling_text": "boiler tube expansion arrangement in combustion space", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "02. Thermal expansion arrangements for boiler tubes", "cross_family": false } ] }, { "qid": "MUM-2022-10-1027-Q005", "text": "JET ASSIST FULL DETAILS", "family": "Turbocharger", "subtopic": "Jet Assist / Auxiliary Blower", "tid": "MUM-2022-10-1027", "tray": "new", "candidates": [ { "answer_id": "ESP-A-001", "score": 0.4248158931732178, "sibling_score": 0.4248158931732178, "answer_score": null, "sibling_qid": "KOC-2023-01-0136-Q003", "sibling_text": "esp full details", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the Enhanced Survey Programme (ESP), and what is its purpose?", "cross_family": true }, { "answer_id": "AVR-EXC-B-001", "score": 0.41416147351264954, "sibling_score": 0.41416147351264954, "answer_score": null, "sibling_qid": "KOL-2026-05-0031-Q020", "sibling_text": "avr full details", "sibling_family": "", "via": "sibling", "answer_title": "Explain the AVR working principle and control-loop operation.", "cross_family": false }, { "answer_id": "TC-OVHL-002", "score": 0.4093593955039978, "sibling_score": 0.4093593955039978, "answer_score": 0.29055987000465394, "sibling_qid": "MUM-2025-08-2388-Q005", "sibling_text": "ae tc in place full overhaul with all clearances and values", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Auxiliary-engine turbocharger overhaul and checks", "cross_family": false } ] }, { "qid": "MUM-2022-10-1031-Q001", "text": "Types of ship sailed", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2022-10-1031", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8296436071395874, "sibling_score": 0.8296436071395874, "answer_score": null, "sibling_qid": "CHE-2026-09-3938-Q001", "sibling_text": "types of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7975111603736877, "sibling_score": 0.7975111603736877, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7829650044441223, "sibling_score": 0.7829650044441223, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "MUM-2022-10-1031-Q002", "text": "Types of engine", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2022-10-1031", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.7231263518333435, "sibling_score": 0.7231263518333435, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.7156073451042175, "sibling_score": 0.7156073451042175, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-001", "score": 0.4484001576900482, "sibling_score": null, "answer_score": 0.4484001576900482, "sibling_qid": "", "sibling_text": "1 turbocharger type main engine vs generator engine compressor is centrifugal in both cases only the turbine type differs large slow speed main engine axial flow turbine single stage constant pressure system", "sibling_family": "", "via": "answer_title", "answer_title": "1. 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Alarms, trips, valves, and abnormal conditions of the deck seal", "cross_family": true } ] }, { "qid": "MUM-2022-10-2697-Q015", "text": "S/G MOTOR SAFETY.", "family": "Electrical - Motors & Starters", "subtopic": "STEERING GEAR MOTOR-ELECTRICAL", "tid": "MUM-2022-10-2697", "tray": "review", "candidates": [ { "answer_id": "SGM-ELEC-001", "score": 0.7830559015274048, "sibling_score": 0.7830559015274048, "answer_score": 0.45306620597839353, "sibling_qid": "MUM-2022-10-1363-Q001", "sibling_text": "safeties in s g motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What are the safeties, alarms and trips on the steering gear motor as per SOLAS — and how do you activate the safematic?", "cross_family": false }, { "answer_id": "IMSP-007", "score": 0.6881542205810547, "sibling_score": 0.6881542205810547, "answer_score": null, "sibling_qid": "KOL-2024-04-2706-Q008", "sibling_text": "safeties provided in motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What safeties and protections are provided in an induction motor and its starter — overload, short-circuit, thermal? What about a motor on deck, and large three-phase motors?", "cross_family": false }, { "answer_id": "MNS-020", "score": 0.6483991742134094, "sibling_score": 0.6483991742134094, "answer_score": null, "sibling_qid": "KOC-2024-02-1329-Q007", "sibling_text": "gang way motor saftey", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Motor protections and safeties — the types, and the gangway motor", "cross_family": false } ] }, { "qid": "MUM-2022-10-2698-Q001", "text": "Introduce yourself Engine Type & Make Man BW 6s60 MC-C", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2022-10-2698", "tray": "review", "candidates": [ { "answer_id": "MCC-MEB-P01-001", "score": 0.6699873805046082, "sibling_score": 0.6699873805046082, "answer_score": null, "sibling_qid": "MUM-2026-02-2576-Q003", "sibling_text": "engine type mc c", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "MC-C (\"Compact\") engine — design and the main constructional differences from MC", "cross_family": false }, { "answer_id": "ALT-MTN-B-001", "score": 0.6397430300712585, "sibling_score": 0.6397430300712585, "answer_score": null, "sibling_qid": "MUM-2026-02-1281-Q001", "sibling_text": "main engine specification mc c", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Routine onboard alternator maintenance checks", "cross_family": false }, { "answer_id": "ENG-NOM-004", "score": 0.5999389886856079, "sibling_score": 0.5999389886856079, "answer_score": 0.49881828427314756, "sibling_qid": "KOL-2018-07-1396-Q001", "sibling_text": "motor what does each letter in 6s 60 mc c stand for", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Decode every letter and number: 6S60MC-C and 6S70ME-C", "cross_family": true } ] }, { "qid": "MUM-2022-10-2698-Q001S2", "text": "Boiler Type & Make - Mine were all AFRAMAX Crude Oil ShipsVertical Type Water Tube Boiler", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2022-10-2698", "tray": "review", "candidates": [ { "answer_id": "TC-TROUBLE-338-001", "score": 0.6512194871902466, "sibling_score": 0.6512194871902466, "answer_score": null, "sibling_qid": "MUM-2026-02-1280-Q002", "sibling_text": "type of boiler compressor and generator on ship", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "1. Turbocharger type — main engine vs generator engine", "cross_family": false }, { "answer_id": "CTRL-007", "score": 0.6321921348571777, "sibling_score": 0.6321921348571777, "answer_score": null, "sibling_qid": "KOC-2026-05-0050-Q007", "sibling_text": "boiler automation for tankers", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Explain an automatic controller / automation process onboard", "cross_family": true }, { "answer_id": "SH-332-002", "score": 0.6200388669967651, "sibling_score": 0.6200388669967651, "answer_score": null, "sibling_qid": "MUM-2025-03-1101-Q010", "sibling_text": "type of boiler on your ship what are super heater tubes and their arrangement", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Where superheater tubes are fitted; attachment, support and expansion", "cross_family": true } ] }, { "qid": "MUM-2022-10-2702-Q002", "text": "Status of written", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2022-10-2702", "tray": "new", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.6471778750419617, "sibling_score": 0.6471778750419617, "answer_score": null, "sibling_qid": "MUM-2026-03-1294-Q001", "sibling_text": "status of writtens and orals", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.5111057758331299, "sibling_score": 0.5111057758331299, "answer_score": null, "sibling_qid": "KOC-2026-08-2106-Q001", "sibling_text": "status of written oral company type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": true }, { "answer_id": "FLAG-ST-001", "score": 0.4864621162414551, "sibling_score": 0.4864621162414551, "answer_score": null, "sibling_qid": "MUM-2025-11-0607-Q004", "sibling_text": "flag state", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Flag State — authority, role, duties and requirements", "cross_family": true } ] }, { "qid": "MUM-2022-10-2702-Q003", "text": "No of attempts.", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2022-10-2702", "tray": "new", "candidates": [ { "answer_id": "CHAIN-TENS-A-003", "score": 0.5413892865180969, "sibling_score": 0.5413892865180969, "answer_score": null, "sibling_qid": "MUM-2026-02-2546-Q006", "sibling_text": "6 repeat", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "Chain Tightening Procedure — MC / MC-C / ME", "cross_family": false }, { "answer_id": "CTRL-TL-010", "score": 0.45367056131362915, "sibling_score": 0.45367056131362915, "answer_score": null, "sibling_qid": "KOL-2018-12-2250-Q004", "sibling_text": "4 failsafematic", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Pneumatic control: nozzle-flapper, DP, actuators and fail-safe", "cross_family": true }, { "answer_id": "RISK-RA-D-002", "score": 0.4481849670410156, "sibling_score": 0.4481849670410156, "answer_score": null, "sibling_qid": "MUM-2024-02-0162-Q007", "sibling_text": "u tried level best risk is not able to control what will u do", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "", "cross_family": true } ] }, { "qid": "MUM-2022-10-2702-Q006", "text": "Types of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2022-10-2702", "tray": "review", "candidates": [ { "answer_id": "LLST-AB-001", "score": 0.817030131816864, "sibling_score": 0.817030131816864, "answer_score": 0.5336870372295379, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.7937093377113342, "sibling_score": 0.7937093377113342, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.7861573696136475, "sibling_score": 0.7861573696136475, "answer_score": 0.5278961479663848, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2022-10-2702-Q011", "text": "Cross questions- Explain crevice and pitting corrosion?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "", "tid": "MUM-2022-10-2702", "tray": "review", "candidates": [ { "answer_id": "CORR-DEZ-004", "score": 0.7393786311149597, "sibling_score": 0.7393786311149597, "answer_score": 0.5833804160356522, "sibling_qid": "CHE-2026-05-0613-Q001", "sibling_text": "crevices corrosion", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What is crevice corrosion?", "cross_family": false }, { "answer_id": "MATPROP-A-005", "score": 0.6773573160171509, "sibling_score": 0.6773573160171509, "answer_score": 0.5609017848968506, "sibling_qid": "MUM-2022-10-0061-Q016", "sibling_text": "what is crevice corrosion and stress corrosion", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Corrosion and degradation mechanisms", "cross_family": true }, { "answer_id": "CC-294-001", "score": 0.6699742674827576, "sibling_score": 0.6699742674827576, "answer_score": null, "sibling_qid": "CHE-2026-05-0639-Q007", "sibling_text": "what is cold corrosion cross questions", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What cold corrosion is, and what it attacks", "cross_family": false } ] }, { "qid": "MUM-2022-10-2702-Q014", "text": "Type of engine", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2022-10-2702", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.8005334734916687, "sibling_score": 0.8005334734916687, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.792962908744812, "sibling_score": 0.792962908744812, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-001", "score": 0.45256524085998534, "sibling_score": null, "answer_score": 0.45256524085998534, "sibling_qid": "", "sibling_text": "1 turbocharger type main engine vs generator engine compressor is centrifugal in both cases only the turbine type differs large slow speed main engine axial flow turbine single stage constant pressure system", "sibling_family": "", "via": "answer_title", "answer_title": "1. Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "MUM-2022-10-2702-Q017", "text": "How electronic control", "family": "2-Stroke - Reversing & Maneuvering", "subtopic": "EICU / Manoeuvring System", "tid": "MUM-2022-10-2702", "tray": "review", "candidates": [ { "answer_id": "PID-CTRL-005", "score": 0.6927835941314697, "sibling_score": 0.6927835941314697, "answer_score": null, "sibling_qid": "MUM-2026-03-1306-Q017", "sibling_text": "what is electronically controlled", "sibling_family": "2-Stroke - ME-C / Electronic Engine", "via": "sibling", "answer_title": "Open-loop, closed-loop, cascade and other control types onboard", "cross_family": true }, { "answer_id": "EICU-MAN-P01-001", "score": 0.6457786560058594, "sibling_score": 0.6457786560058594, "answer_score": 0.5167111694812775, "sibling_qid": "MUM-2025-09-2846-Q005", "sibling_text": "which things are control electronically in me", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "EICU, ECU, CCU, ACU — the ME control units and what is controlled electronically", "cross_family": false }, { "answer_id": "GOV-P02-001", "score": 0.5971941351890564, "sibling_score": 0.5971941351890564, "answer_score": null, "sibling_qid": "KOC-2024-10-1414-Q006", "sibling_text": "me electronic governor", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Electronic governor — draw, block diagram & working", "cross_family": true } ] }, { "qid": "MUM-2022-10-2702-Q023", "text": "I started preparation on june-12, this year, After gap from shipping for almost 3-years.", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2022-10-2702", "tray": "new", "candidates": [ { "answer_id": "dus-p6-05", "score": 0.4333254396915436, "sibling_score": 0.4333254396915436, "answer_score": null, "sibling_qid": "MUM-2026-07-3725-Q005", "sibling_text": "ship is layed up for 2 years what all precautions you will take to start ship starting from jetty", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Post-lay-up recommissioning — checks on ME, AE and boiler before returning to service", "cross_family": true }, { "answer_id": "CPS-316-002", "score": 0.4234212636947632, "sibling_score": 0.4234212636947632, "answer_score": 0.29891506433486936, "sibling_qid": "MUM-2024-08-0198-Q006", "sibling_text": "preparation before cargo discharge", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "2/E checks and preparation before cargo discharge / cargo operations", "cross_family": true }, { "answer_id": "DUS-P1-01", "score": 0.4160096049308777, "sibling_score": 0.4160096049308777, "answer_score": null, "sibling_qid": "KOL-2025-04-0931-Q004", "sibling_text": "preparations before drydock", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Drydock preparation as 2E — full workflow from office confirmation to entry", "cross_family": true } ] }, { "qid": "MUM-2022-10-2706-Q001", "text": "18/10/22 Mumbai Internal:- Gopikrishnan sir External:- Bhansal sir Gopi sir started with type of vessel. 1. How do you classify a ship as general cargo?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2022-10-2706", "tray": "review", "candidates": [ { "answer_id": "SOLAS12-BC-A-001", "score": 0.7108451128005981, "sibling_score": 0.7108451128005981, "answer_score": 0.5234581887722015, "sibling_qid": "MUM-2026-06-3436-Q002", "sibling_text": "type of bulk carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "SOLAS definition and scope of a bulk carrier", "cross_family": false }, { "answer_id": "DB-TORBOX-B-003", "score": 0.6819194555282593, "sibling_score": 0.6819194555282593, "answer_score": null, "sibling_qid": "CHE-2026-04-0150-Q001", "sibling_text": "type of ship sailed container", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "What is a torsion box — definition and construction", "cross_family": false }, { "answer_id": "SOLAS-XII-BC-002", "score": 0.6647195816040039, "sibling_score": 0.6647195816040039, "answer_score": null, "sibling_qid": "KOC-2026-09-2208-Q005", "sibling_text": "bulk carrier as per solas", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Explain SOLAS Chapter XII — the additional safety measures for bulk carriers", "cross_family": true } ] }, { "qid": "MUM-2022-10-2706-Q004", "text": "Apart from chapter 9 which else chapter talks about bulk definition?", "family": "SOLAS - General (HOLD)", "subtopic": "Solas Chapter 12 - Bulk", "tid": "MUM-2022-10-2706", "tray": "new", "candidates": [ { "answer_id": "A5-GARB-005", "score": 0.5270982980728149, "sibling_score": 0.5270982980728149, "answer_score": null, "sibling_qid": "MUM-2025-09-2842-Q004", "sibling_text": "annex 5 what s there only for bulk", "sibling_family": "MARPOL - Annex V (Garbage)", "via": "sibling", "answer_title": "Cargo residues and bulk-carrier garbage", "cross_family": true }, { "answer_id": "SOLAS-XII-BC-002", "score": 0.5173395872116089, "sibling_score": 0.5173395872116089, "answer_score": null, "sibling_qid": "MUM-2024-11-0220-Q002", "sibling_text": "chapter 12 in detail", "sibling_family": "SOLAS - General (HOLD)", "via": "sibling", "answer_title": "Explain SOLAS Chapter XII — the additional safety measures for bulk carriers", "cross_family": false }, { "answer_id": "SOLAS12-BC-A-001", "score": 0.5156545042991638, "sibling_score": 0.5156545042991638, "answer_score": null, "sibling_qid": "KOC-2026-02-0822-Q006", "sibling_text": "definition of bulk carrier where all it is mentioned solas chapter 9 and 12", "sibling_family": "", "via": "sibling", "answer_title": "SOLAS definition and scope of a bulk carrier", "cross_family": false } ] }, { "qid": "MUM-2022-10-2706-Q005", "text": "Which chapter tells you about carriage of goods? ", "family": "SOLAS - General (HOLD)", "subtopic": "Chapter VI / Carriage of Cargoes", "tid": "MUM-2022-10-2706", "tray": "review", "candidates": [ { "answer_id": "SOLAS12-BC-A-003", "score": 0.6539427638053894, "sibling_score": 0.6539427638053894, "answer_score": 0.47237519919872284, "sibling_qid": "MUM-2026-06-3497-Q002", "sibling_text": "which chapter in solas deals with bulk carrier", "sibling_family": "SOLAS - General (HOLD)", "via": "sibling", "answer_title": "Which SOLAS chapters cover bulk carriers, and where the definition is found", "cross_family": false }, { "answer_id": "SOLAS12-BC-B-001", "score": 0.6476152539253235, "sibling_score": 0.6476152539253235, "answer_score": null, "sibling_qid": "KOL-2025-08-1021-Q010", "sibling_text": "chapter 12 bulk carrier safeties", "sibling_family": "", "via": "sibling", "answer_title": "Additional safety measures for bulk carriers (SOLAS Chapter XII)", "cross_family": false }, { "answer_id": "WIDAS-SMK-005", "score": 0.63145911693573, "sibling_score": 0.63145911693573, "answer_score": null, "sibling_qid": "MUM-2026-03-0839-Q003", "sibling_text": "chapter 12 for bulk carrier what is states especially widas system", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Regulation, SOLAS Chapter XII references and exemptions", "cross_family": true } ] }, { "qid": "MUM-2022-10-2708-Q006", "text": "How to order Mat", "family": "Electrical - Motors & Starters", "subtopic": "Motor Specification / Ordering", "tid": "MUM-2022-10-2708", "tray": "new", "candidates": [ { "answer_id": "ELEC-SAFE-002", "score": 0.524317741394043, "sibling_score": 0.524317741394043, "answer_score": 0.34064650237560273, "sibling_qid": "MUM-2022-07-1338-Q005", "sibling_text": "how to order insulation mats", "sibling_family": "", "via": "sibling", "answer_title": "How to order insulating rubber mats", "cross_family": false }, { "answer_id": "BRG-NOM-001", "score": 0.5149392485618591, "sibling_score": 0.5149392485618591, "answer_score": null, "sibling_qid": "MUM-2026-09-3871-Q005", "sibling_text": "how to order motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Bearing Numbers, Suffixes and What to State When Ordering", "cross_family": false }, { "answer_id": "IP-ENCL-002", "score": 0.4319661855697632, "sibling_score": 0.4319661855697632, "answer_score": null, "sibling_qid": "KOC-2026-10-2222-Q002", "sibling_text": "how to order sea water motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Suitable IP rating by location — ER, deck, pump, generator", "cross_family": false } ] }, { "qid": "MUM-2022-10-2708-Q007", "text": "Frame No. of Motor what it signifies, was asking some formula", "family": "Electrical - Motors & Starters", "subtopic": "Frame Number", "tid": "MUM-2022-10-2708", "tray": "review", "candidates": [ { "answer_id": "ELECTRICAL-M-A-01", "score": 0.8332429528236389, "sibling_score": 0.8332429528236389, "answer_score": 0.5839953243732452, "sibling_qid": "NOI-2026-09-0005-Q009", "sibling_text": "frame number of motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Motor Frame Number", "cross_family": false }, { "answer_id": "IM-TSS-P01-004", "score": 0.657301127910614, "sibling_score": 0.657301127910614, "answer_score": null, "sibling_qid": "KOL-2023-11-2683-Q004", "sibling_text": "can you have a motor with 950 rpm how many poles which formula used", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Synchronous speed, poles and Ns = 120 f / P", "cross_family": false }, { "answer_id": "IP-ENCL-001", "score": 0.6312351822853088, "sibling_score": 0.6312351822853088, "answer_score": null, "sibling_qid": "MUM-2026-05-3140-Q007", "sibling_text": "ip for motor what does the numbers indicate", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "IP rating of motors — what the numbers mean", "cross_family": false } ] }, { "qid": "MUM-2022-10-2708-Q021", "text": "Boiler Dry & Wet Layup", "family": "Boilers - Safety & Survey", "subtopic": "Wet/Dry Layup", "tid": "MUM-2022-10-2708", "tray": "new", "candidates": [ { "answer_id": "BLR-SURV-P02-004", "score": 0.568359911441803, "sibling_score": 0.568359911441803, "answer_score": null, "sibling_qid": "MUM-2026-06-3564-Q002", "sibling_text": "tests on boiler structure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "BWTEST-A-002", "score": 0.5607142448425293, "sibling_score": 0.5607142448425293, "answer_score": null, "sibling_qid": "NOI-2026-09-0019-Q003", "sibling_text": "boiler mountings and water tests carried out", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What does high boiler-water chloride, salinity or TDS indicate, and what action is required?", "cross_family": false }, { "answer_id": "BLR-SURV-P02-008", "score": 0.5587906241416931, "sibling_score": 0.5587906241416931, "answer_score": null, "sibling_qid": "MUM-2026-06-3504-Q012", "sibling_text": "boiler survey and boiler gasket material", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "MUM-2022-10-2708-Q022", "text": "Rudder removal if upper and lower pintle", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "MUM-2022-10-2708", "tray": "new", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.635953962802887, "sibling_score": 0.635953962802887, "answer_score": 0.4019864588975906, "sibling_qid": "KOL-2016-11-3015-Q002", "sibling_text": "rudder test n removal", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "TRS-002", "score": 0.5940028429031372, "sibling_score": 0.5940028429031372, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "PRE-TEN-001", "score": 0.5907413363456726, "sibling_score": 0.5907413363456726, "answer_score": null, "sibling_qid": "MUM-2026-06-3504-Q007", "sibling_text": "rudder carrier bearing removal procedure", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Pre-stressing and pre-tensioning in main-engine bolting", "cross_family": false } ] }, { "qid": "MUM-2022-10-2708-Q023", "text": "How to check pintle clearances and checking of bush dia without removal", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "MUM-2022-10-2708", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.653881311416626, "sibling_score": 0.653881311416626, "answer_score": null, "sibling_qid": "MUM-2026-06-3469-Q003", "sibling_text": "pintle clearance checking measurement", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": true }, { "answer_id": "AE-CRP-003", "score": 0.6079785227775574, "sibling_score": 0.6079785227775574, "answer_score": null, "sibling_qid": "KOL-2025-06-3785-Q006", "sibling_text": "checks on ae piston and clearances to be taken with clearance values i just answered clearance will be mentioned on the manual", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE piston, ring and groove checks; piston material", "cross_family": true }, { "answer_id": "MN-BRG-C-003", "score": 0.5882228016853333, "sibling_score": 0.5882228016853333, "answer_score": null, "sibling_qid": "KOC-2024-07-1847-Q002", "sibling_text": "checks on main bearing how will you take clearances which all methods", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main bearing clearance and wear-down: measuring and interpreting", "cross_family": true } ] }, { "qid": "MUM-2022-10-2710-Q006", "text": "Fore peak tank construction.", "family": "", "subtopic": "Peak Tank Construction", "tid": "MUM-2022-10-2710", "tray": "review", "candidates": [ { "answer_id": "PPS-230-006", "score": 0.7386220693588257, "sibling_score": 0.7386220693588257, "answer_score": null, "sibling_qid": "MUM-2026-08-3829-Q005", "sibling_text": "forepeak tank construction", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Fore-end / fore-peak structure: draw and describe", "cross_family": false }, { "answer_id": "BSBH-420-002", "score": 0.6423699855804443, "sibling_score": 0.6423699855804443, "answer_score": 0.49303985834121705, "sibling_qid": "MUM-2026-06-3359-Q004", "sibling_text": "forepeak construction", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Fore-end / forepeak construction forward of the collision bulkhead — members and cross-section", "cross_family": false }, { "answer_id": "BCFS-002", "score": 0.5675173997879028, "sibling_score": 0.5675173997879028, "answer_score": null, "sibling_qid": "MUM-2024-09-1093-Q003", "sibling_text": "cascade tank construction", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "The cascade tank — purpose, location, construction, temperature control and abnormal steaming", "cross_family": false } ] }, { "qid": "MUM-2022-10-2710-Q007", "text": "ORB entries. Entry pertaining to drain of lube oil from ae sump.", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "MUM-2022-10-2710", "tray": "review", "candidates": [ { "answer_id": "CO2-SYS-006", "score": 0.6785506010055542, "sibling_score": 0.6785506010055542, "answer_score": null, "sibling_qid": "KOC-2026-04-0903-Q005", "sibling_text": "in orb entries aux engine sump oil renewal manual transfer in which code and section", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "CO2 bottles, manifolds, pilot cylinders and valve components", "cross_family": false }, { "answer_id": "OWS-ORB-006", "score": 0.6661054491996765, "sibling_score": 0.6661054491996765, "answer_score": null, "sibling_qid": "MUM-2024-07-0181-Q008", "sibling_text": "orb part 1 and part 2 entries tell me about bulk lube oil entry", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "6. Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": false }, { "answer_id": "LO-SUMP-002", "score": 0.5807368159294128, "sibling_score": 0.5807368159294128, "answer_score": null, "sibling_qid": "MUM-2024-06-1081-Q004", "sibling_text": "me sump level reducing stuffing box last 2 scrapper ring not working so oil scrapped in stuffing box drain tank accepted don t say lo purifier", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main-engine LO sump level low / dropping — reasons and action", "cross_family": true } ] }, { "qid": "MUM-2022-10-2712-Q003", "text": "Generator one unit exhaust temperature raising. (I said fualt in fault in fuel valve and pump). Explain full what faults in it.", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Decarb / Balancing / High Exhaust Temperature", "tid": "MUM-2022-10-2712", "tray": "review", "candidates": [ { "answer_id": "AE-HOT-BLOW-005", "score": 0.7195938229560852, "sibling_score": 0.7195938229560852, "answer_score": null, "sibling_qid": "KOL-2018-03-1361-Q007", "sibling_text": "ae one unit exhaust temp rising all unit rising why how to confirm nozzle ring is chocked there is no tc rpm monitor", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Auxiliary engine units rising — one versus all, and confirming a choked turbocharger nozzle ring", "cross_family": false }, { "answer_id": "CPP-POL-02", "score": 0.677335798740387, "sibling_score": 0.677335798740387, "answer_score": null, "sibling_qid": "MUM-2026-03-2618-Q003", "sibling_text": "a e one unit exhaust temperature is low causes", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "One main-engine cylinder has a low exhaust temperature — what are the causes and checks?", "cross_family": false }, { "answer_id": "AE-HOT-BLOW-004", "score": 0.6734412908554077, "sibling_score": 0.6734412908554077, "answer_score": null, "sibling_qid": "MUM-2025-12-2879-Q006", "sibling_text": "rating of the ae running at low load but exhaust temp are high reason", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Auxiliary engine at low load but exhaust temperatures high — reasons", "cross_family": false } ] }, { "qid": "MUM-2022-10-2712-Q008", "text": "Forging, what will happen to component when it is forge.", "family": "Materials & Metallurgy", "subtopic": "Shot Peening / Work Hardening / Forging / Spark Erosion", "tid": "MUM-2022-10-2712", "tray": "new", "candidates": [ { "answer_id": "FORGE-002", "score": 0.4885135889053345, "sibling_score": 0.4885135889053345, "answer_score": 0.34633393585681915, "sibling_qid": "MUM-2026-06-3389-Q005", "sibling_text": "what is forging", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "What is forging?", "cross_family": true }, { "answer_id": "FORGE-001", "score": 0.43900543451309204, "sibling_score": 0.43900543451309204, "answer_score": 0.33867329359054565, "sibling_qid": "MUM-2026-04-1316-Q010", "sibling_text": "forging process wher n why", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "The forging process — how it is done, where it is used, and its advantages", "cross_family": true }, { "answer_id": "WELD-B-009", "score": 0.3773931562900543, "sibling_score": 0.3773931562900543, "answer_score": null, "sibling_qid": "KOL-2025-10-2017-Q010", "sibling_text": "forging welding", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Special welding processes — submerged arc, spot, friction, forge, MMA and alloy welding", "cross_family": true } ] }, { "qid": "MUM-2022-10-2712-Q009", "text": "Charging of accumulator. At what pressure you are charging", "family": "Steering Gear & Hydraulics", "subtopic": "Hydraulic Valves", "tid": "MUM-2022-10-2712", "tray": "review", "candidates": [ { "answer_id": "ALPHA-LUB-A-003", "score": 0.7068034410476685, "sibling_score": 0.7068034410476685, "answer_score": null, "sibling_qid": "CHE-2026-05-0594-Q003", "sibling_text": "alpha lubri nitrogen accumulator charging how much bar accumulation pressure test internal and external tev why", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Alpha lubricator overhaul, checks and local maintenance", "cross_family": true }, { "answer_id": "ACCT-583-A-001", "score": 0.6338585019111633, "sibling_score": 0.6338585019111633, "answer_score": null, "sibling_qid": "CHE-2026-08-3880-Q006", "sibling_text": "accumulator pressure test purpose", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Explain the boiler accumulation pressure test — what it is, its purpose, and how it is carried out (including when and at what interval)", "cross_family": true }, { "answer_id": "REEF-COMP-001", "score": 0.6277909278869629, "sibling_score": 0.6277909278869629, "answer_score": null, "sibling_qid": "MUM-2026-05-3285-Q008", "sibling_text": "refer compressor charging precautions", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Reefer/AC compressor safeties and cut-outs — safety valve, HP and LP cut-outs", "cross_family": true } ] }, { "qid": "MUM-2022-10-2713-Q001", "text": "type of engine u worked", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2022-10-2713", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.7542098760604858, "sibling_score": 0.7542098760604858, "answer_score": null, "sibling_qid": "KOL-2026-03-2048-Q001", "sibling_text": "type of engine done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "MCC-MEB-P01-001", "score": 0.7449703216552734, "sibling_score": 0.7449703216552734, "answer_score": null, "sibling_qid": "MUM-2026-09-3997-Q002", "sibling_text": "type of engine worked me mcc me b and rta", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "MC-C (\"Compact\") engine — design and the main constructional differences from MC", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7221055030822754, "sibling_score": 0.7221055030822754, "answer_score": null, "sibling_qid": "CHE-2026-04-0506-Q003", "sibling_text": "types of engine you worked specifications of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false } ] }, { "qid": "MUM-2022-10-2713-Q004", "text": "elfi valve working", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "ELFI", "tid": "MUM-2022-10-2713", "tray": "new", "candidates": [ { "answer_id": "FIVA-220-001", "score": 0.6284803748130798, "sibling_score": 0.6284803748130798, "answer_score": 0.39138490110635754, "sibling_qid": "CHE-2026-04-0256-Q001", "sibling_text": "fiva valve working", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "FIVA valve — construction, function and basic operation", "cross_family": false }, { "answer_id": "MEB-MEC-P03-001", "score": 0.5409500598907471, "sibling_score": 0.5409500598907471, "answer_score": null, "sibling_qid": "KOL-2023-02-4019-Q009", "sibling_text": "fiva elfi valve does me b has ccu", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "ME-B vs ME-C — the core difference", "cross_family": true }, { "answer_id": "FIVA-220-003", "score": 0.5326637029647827, "sibling_score": 0.5326637029647827, "answer_score": null, "sibling_qid": "MUM-2026-03-2588-Q002", "sibling_text": "how fiva valve working what will be it s position in fail safe", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "FIVA control signal, controller type, voice-coil drive and fail-safe behaviour", "cross_family": false } ] }, { "qid": "MUM-2022-10-2713-Q005", "text": "How fuel quatity controlled", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Injection System", "tid": "MUM-2022-10-2713", "tray": "review", "candidates": [ { "answer_id": "VIT-MECH-C-001", "score": 0.6925631165504456, "sibling_score": 0.6925631165504456, "answer_score": null, "sibling_qid": "KOL-2021-07-1597-Q001", "sibling_text": "vit in man b w explain how it is being done and how quantity of fuel is controlled", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "MAN B&W MC VIT — varying the start of injection on a helix pump", "cross_family": false }, { "answer_id": "CR-248-001", "score": 0.6579214930534363, "sibling_score": 0.6579214930534363, "answer_score": null, "sibling_qid": "MUM-2025-08-2828-Q006", "sibling_text": "how fuel oil quantity is controlled in me c engine", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "The common rail fuel injection system — layout, working sequence, rail valves, timing & quantity control", "cross_family": false }, { "answer_id": "FIVA-220-002", "score": 0.616840660572052, "sibling_score": 0.616840660572052, "answer_score": 0.46324915289878843, "sibling_qid": "MUM-2026-05-3217-Q014", "sibling_text": "how quantity of fuel oil in electronic engine", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "FIVA control of fuel injection — timing, quantity and actuation", "cross_family": false } ] }, { "qid": "MUM-2022-10-2713-Q008", "text": "AE kub oil temp high", "family": "Heat Exchangers & Coolers", "subtopic": "JCW System", "tid": "MUM-2022-10-2713", "tray": "new", "candidates": [ { "answer_id": "LO-TEST-P02-003", "score": 0.5658782720565796, "sibling_score": 0.5658782720565796, "answer_score": null, "sibling_qid": "MUM-2026-09-3942-Q008", "sibling_text": "ae lube oil temp increase reasons", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Abnormal LO condition: sump rise, colour, high temperature/pressure, lacquer, deterioration", "cross_family": true }, { "answer_id": "JCW-SYS-001", "score": 0.5292041897773743, "sibling_score": 0.5292041897773743, "answer_score": null, "sibling_qid": "KOL-2016-08-1229-Q003", "sibling_text": "why jacket water temp is maintained high in new engine how much then he told me in new engines it increased to 120 and said to check this and find out the reasons", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "How is jacket water temperature controlled - HT/LT controllers, cascade, why it is kept high, and testing the thermostatic valve", "cross_family": false }, { "answer_id": 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"sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Define the comfort zone and state its parameters and ranges", "cross_family": false }, { "answer_id": "CFZ-330-004", "score": 0.789551854133606, "sibling_score": 0.789551854133606, "answer_score": 0.601336732506752, "sibling_qid": "KOL-2019-10-3284-Q002", "sibling_text": "2 air condition relative humidity 70 and temperature 30 degree how to make it in comfort zone", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "AHU, relative humidity and psychrometric adjustment — bringing 30 °C / 70% air into the comfort zone; sweating and cooler drain water", "cross_family": false }, { "answer_id": "CFZ-330-003", "score": 0.7491959929466248, "sibling_score": 0.7491959929466248, "answer_score": 0.6073975086212158, "sibling_qid": "KOL-2018-01-1340-Q003", "sibling_text": "comfort zone what is it range how humidity controlled in summer and winter", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Summer and winter operation — how the comfort zone is held, and how relative humidity is raised", "cross_family": false } ] }, { "qid": "MUM-2022-10-2713-Q012", "text": "steering gear safety", "family": "Steering Gear & Hydraulics", "subtopic": "Frame System / Pump Type", "tid": "MUM-2022-10-2713", "tray": "review", "candidates": [ { "answer_id": "SG-055-B-002", "score": 0.806002676486969, "sibling_score": 0.806002676486969, "answer_score": 0.5179897248744965, "sibling_qid": "KOL-2018-12-1864-Q004", "sibling_text": "steering gear safeties explain", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Steering-gear alarms, trips and electrical / hydraulic safeties", "cross_family": false }, { "answer_id": "STG-055-C-001", "score": 0.786232054233551, "sibling_score": 0.786232054233551, "answer_score": null, "sibling_qid": "KOL-2026-07-4249-Q006", "sibling_text": "safematic arrangement in steering gear", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Safematic steering gear, redundancy and the single-failure criterion", "cross_family": false }, { "answer_id": "STEER-055-A-001", "score": 0.7778181433677673, "sibling_score": 0.7778181433677673, "answer_score": null, "sibling_qid": "MUM-2026-05-3347-Q002", "sibling_text": "steering gear safeties x questions", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Steering gear — construction, types and working", "cross_family": false } ] }, { "qid": "MUM-2022-10-2713-Q013", "text": "double bottom tank pressure testing", "family": "Ship Construction & Naval Architecture", "subtopic": "Double Bottom / Torsion Box", "tid": "MUM-2022-10-2713", "tray": "review", "candidates": [ { "answer_id": "DBTB-A-003", "score": 0.7929050326347351, "sibling_score": 0.7929050326347351, "answer_score": 0.5870592772960662, "sibling_qid": "KOC-2026-02-2000-Q003", "sibling_text": "double bottom tank pressure testing", "sibling_family": "", "via": "sibling", "answer_title": "Carrying out a double-bottom tank pressure / tank test", "cross_family": false }, { "answer_id": "DUS-P5-06", "score": 0.6989055871963501, "sibling_score": 0.6989055871963501, "answer_score": null, "sibling_qid": "CHE-2026-05-0641-Q007", "sibling_text": "db ballast tank pressure testing", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "DB and ballast tank pressure testing — procedure and head", "cross_family": true }, { "answer_id": "STHX-003", "score": 0.5029790103435516, "sibling_score": null, "answer_score": 0.5029790103435516, "sibling_qid": "", "sibling_text": "sthx 03 pressure and leak testing isolate drain the non test side fill the test side with water and vent all the air test each side separately so a tube joint leak shows from the open side", "sibling_family": "", "via": "answer_title", "answer_title": "STHX-03 — Pressure and leak testing", "cross_family": false } ] }, { "qid": "MUM-2022-10-2714-Q001", "text": "IHR what all certificates and validity? When exemption certificate and when control certificate is given?", "family": "Maritime Law & Certificates", "subtopic": "CERTIFICATES", "tid": "MUM-2022-10-2714", "tray": "new", "candidates": [ { "answer_id": "ISM-SMCDOC-A-001", "score": 0.5669011473655701, "sibling_score": 0.5669011473655701, "answer_score": null, "sibling_qid": "KOL-2026-10-4315-Q002", "sibling_text": "certificates under ism and validity", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM certificates: the DOC and SMC family", "cross_family": true }, { "answer_id": "CERT-LIST-P02-004", "score": 0.5652626752853394, "sibling_score": 0.5652626752853394, "answer_score": 0.40957824885845184, "sibling_qid": "MUM-2026-06-3625-Q006", "sibling_text": "list of statutory certificates afs certificate validity", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Validity, renewal, interim certificates and e-certificate verification", "cross_family": true }, { "answer_id": "AVICERT-003", "score": 0.553435742855072, "sibling_score": 0.553435742855072, "answer_score": null, "sibling_qid": "KOL-2026-02-1170-Q006", "sibling_text": "types of certificates in annex 6 their validity", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What are the types of certificate under MARPOL Annex VI and what is the validity of each?", "cross_family": true } ] }, { "qid": "MUM-2022-10-2714-Q003", "text": "Transom space construction? Where is it? What's the design of it?", "family": "Ship Construction & Stability", "subtopic": "Stern Frame / Transom", "tid": "MUM-2022-10-2714", "tray": "new", "candidates": [ { "answer_id": "DUS-P5-03", "score": 0.6322848796844482, "sibling_score": 0.6322848796844482, "answer_score": null, "sibling_qid": "NOI-2026-09-0006-Q003", "sibling_text": "transom space", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Stern frame construction, cross-section and rudder-axis sketch", "cross_family": false }, { "answer_id": "PPS-230-004", "score": 0.48583775758743286, "sibling_score": 0.48583775758743286, "answer_score": null, "sibling_qid": "NOI-2026-09-0006-Q004", "sibling_text": "panting pounding arrangements in transom space", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Forward strengthening to resist pounding / slamming", "cross_family": false }, { "answer_id": "PPS-230-006", "score": 0.4845404028892517, "sibling_score": 0.4845404028892517, "answer_score": null, "sibling_qid": "CHE-2026-09-3914-Q002", "sibling_text": "forward ship constructional arrangements", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Fore-end / fore-peak structure: draw and describe", "cross_family": false } ] }, { "qid": "MUM-2022-11-0064-Q002", "text": "Solas requirements of lifebuoy? IAPP SURVEY PREPARATION?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "LSA Code", "tid": "MUM-2022-11-0064", "tray": "new", "candidates": [ { "answer_id": "LB-SURV-C-002", "score": 0.6299116015434265, "sibling_score": 0.6299116015434265, "answer_score": 0.47043993771076204, "sibling_qid": "KOL-2024-12-0903-Q004", "sibling_text": "lifeboat to make ready for survey", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Preparing the lifeboat and its engine for survey as 2/E", "cross_family": false }, { "answer_id": "LB-SURV-C-001", "score": 0.6271181702613831, "sibling_score": 0.6271181702613831, "answer_score": 0.4707971692085266, "sibling_qid": "KOL-2025-09-1071-Q006", "sibling_text": "life boat checks for survey", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Annual thorough examination / SEQ survey of the lifeboat — scope, by whom, certificate", "cross_family": false }, { "answer_id": "LB-SURV-C-011", "score": 0.6127553582191467, "sibling_score": 0.6127553582191467, "answer_score": null, "sibling_qid": "KOL-2018-08-0212-Q004", "sibling_text": "enclosed lifeboat checks during survey", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Enclosed lifeboat — survey checks and type distinctions", "cross_family": false } ] }, { "qid": "MUM-2022-11-0065-Q001", "text": "Type of ship? Few basic questions on lng ships.", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2022-11-0065", "tray": "review", "candidates": [ { "answer_id": "LPG-LNG-009", "score": 0.7893202304840088, "sibling_score": 0.7893202304840088, "answer_score": 0.5596903085708618, "sibling_qid": "MUM-2026-01-0682-Q001", "sibling_text": "type of ship lng tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Gas-carrier fundamentals and ship-specific traps", "cross_family": false }, { "answer_id": "LPG-LNG-001", "score": 0.7349768877029419, "sibling_score": 0.7349768877029419, "answer_score": null, "sibling_qid": "MUM-2026-09-3961-Q001", "sibling_text": "how lpg ship differ from other ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "LPG vs LNG – properties, carriage and comparison", "cross_family": false }, { "answer_id": "IGC-GAS-004", "score": 0.7042360901832581, "sibling_score": 0.7042360901832581, 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"sibling_score": 0.4072996973991394, "answer_score": null, "sibling_qid": "MUM-2026-03-0822-Q004", "sibling_text": "seemp part1 2 and 3", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP — Part I, II & III", "cross_family": true }, { "answer_id": "HKC-IHM-B-001", "score": 0.3831850290298462, "sibling_score": 0.3831850290298462, "answer_score": null, "sibling_qid": "MUM-2022-11-0065-Q005", "sibling_text": "ihm part 1 2 3", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is the IHM — its parts, categories and contents?", "cross_family": true } ] }, { "qid": "MUM-2022-11-0067-Q001", "text": "type of ship, all about pollution damage compensation", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2022-11-0067", "tray": "review", "candidates": [ { "answer_id": "IBC-BCH-B-004", "score": 0.6683362126350403, "sibling_score": 0.6683362126350403, "answer_score": null, "sibling_qid": "MUM-2026-05-3156-Q001", "sibling_text": "type of ships chemical tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Certificate of Fitness and MARPOL Annex II in practice", "cross_family": false }, { "answer_id": "COT-01", "score": 0.6657511591911316, "sibling_score": 0.6657511591911316, "answer_score": null, "sibling_qid": "KOC-2026-04-0892-Q003", "sibling_text": "type of ship sailed tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Oil-tanker types, definitions and cargo capability", "cross_family": false }, { "answer_id": "CLC-CIV-A-001", "score": 0.6503939032554626, "sibling_score": 0.6503939032554626, "answer_score": null, "sibling_qid": "KOL-2022-11-0696-Q007", "sibling_text": "oil pollution damage why and role of shipowner features etc", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "CLC Convention — objective, scope and shipowner liability", "cross_family": true } ] }, { "qid": "MUM-2022-11-0067-Q003", "text": "functional req of ISM", "family": "ISM Code", "subtopic": "SMS / Functional Requirements", "tid": "MUM-2022-11-0067", "tray": "review", "candidates": [ { "answer_id": "ISM-AUD-P02-003", "score": 0.7576825022697449, "sibling_score": 0.7576825022697449, "answer_score": 0.41071226000785827, "sibling_qid": "MUM-2026-09-3991-Q005", "sibling_text": "functional requirements of ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "The six functional requirements of the ISM Code (clause 1.4)", "cross_family": false }, { "answer_id": "SMSFR-001", "score": 0.7074138522148132, "sibling_score": 0.7074138522148132, "answer_score": 0.4467351377010345, "sibling_qid": "MUM-2026-06-3581-Q001", "sibling_text": "what are the functional requirements of the ism code", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What are the functional requirements of the ISM Code and the SMS — and the requirement for internal audit?", "cross_family": 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NLS cargo residues, by category", "cross_family": false }, { "answer_id": "ODC-001", "score": 0.7690966725349426, "sibling_score": 0.7690966725349426, "answer_score": null, "sibling_qid": "KOC-2023-03-0165-Q002", "sibling_text": "annex 1 and 2 discharge criteria", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "MARPOL Annex I oil discharge criteria — the overall framework", "cross_family": false }, { "answer_id": "AII-DISCH-001", "score": 0.7349623441696167, "sibling_score": 0.7349623441696167, "answer_score": null, "sibling_qid": "CHE-2026-05-0547-Q008", "sibling_text": "annex 2 discharge criteria deciding", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "State the MARPOL Annex II discharge criteria for NLS residues and tank washings", "cross_family": true } ] }, { "qid": "MUM-2022-11-0068-Q005", "text": "CRUISER STERN", "family": "Ship Construction & Stability", "subtopic": "Stern Frame / Transom", "tid": "MUM-2022-11-0068", "tray": "new", "candidates": [ { "answer_id": "DUS-P5-03", "score": 0.6173487305641174, "sibling_score": 0.6173487305641174, "answer_score": 0.40329548865556714, "sibling_qid": "CHE-2026-02-0105-Q005", "sibling_text": "transom stern explain", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Stern frame construction, cross-section and rudder-axis sketch", "cross_family": false }, { "answer_id": "SHELL-PLT-A-001", "score": 0.512036919593811, "sibling_score": 0.512036919593811, "answer_score": null, "sibling_qid": "KOC-2025-02-0543-Q006", "sibling_text": "shell expansion plan draw stern side without propeller and rudder int", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "The shell expansion plan, and how you identify a plate", "cross_family": true }, { "answer_id": "STS-P02-003", "score": 0.5110608339309692, "sibling_score": 0.5110608339309692, "answer_score": 0.4001621514558792, "sibling_qid": 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"score": 0.8360850214958191, "sibling_score": 0.8360850214958191, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8013965487480164, "sibling_score": 0.8013965487480164, "answer_score": 0.5467735856771468, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.7998400330543518, "sibling_score": 0.7998400330543518, "answer_score": 0.5213733673095703, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships 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"sibling", "answer_title": "Crankcase / camcase inspection — checks and contamination", "cross_family": true } ] }, { "qid": "MUM-2022-11-1369-Q007", "text": "Alternator nameplate details?", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator / Generator", "tid": "MUM-2022-11-1369", "tray": "review", "candidates": [ { "answer_id": "ALT-GEN-P02-001", "score": 0.8126645684242249, "sibling_score": 0.8126645684242249, "answer_score": 0.5011484205722808, "sibling_qid": "CHE-2026-08-0667-Q008", "sibling_text": "name plate specification of alternator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Alternator/generator specifications, ratings and ship electrical supply details", "cross_family": false }, { "answer_id": "BL-ALT-C-002", "score": 0.5122474223375321, "sibling_score": null, "answer_score": 0.5122474223375321, "sibling_qid": "", "sibling_text": "how to identify onboard that an alternator is brushless open the exciter non drive end cover no brushes no brush boxes or springs no slip rings no carbon dust brushless defining proof no slip rings on the main rotor a visible shaft mounted rotating rectifier diode wheel plus surge suppressor", "sibling_family": "", "via": "answer_title", "answer_title": "How to identify onboard that an alternator is brushless", "cross_family": false }, { "answer_id": "ALT-GEN-P03-005", "score": 0.4736746788024902, "sibling_score": null, "answer_score": 0.4736746788024902, "sibling_qid": "", "sibling_text": "alternator construction parts and direct connection main parts stator rotor field shaft bearings frame exciter diode wheel or brushes avr terminal box cooling heaters and sensors stator carries the three phase output rotor carries the magnetic field", "sibling_family": "", "via": "answer_title", "answer_title": "Alternator construction, parts, and direct connection", "cross_family": false } ] }, { "qid": "MUM-2022-11-1369-Q008", "text": "Explain each one and what information you will know from this?", "family": "Electrical - Motors & Starters", "subtopic": "Insulation Class", "tid": "MUM-2022-11-1369", "tray": "new", "candidates": [ { "answer_id": "ENG-NOM-004", "score": 0.5358709096908569, "sibling_score": 0.5358709096908569, "answer_score": null, "sibling_qid": "KOL-2024-07-1948-Q003", "sibling_text": "explain nomenclature of each term", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Decode every letter and number: 6S60MC-C and 6S70ME-C", "cross_family": true }, { "answer_id": "SEEMP-123-B-001", "score": 0.5315492153167725, "sibling_score": 0.5315492153167725, "answer_score": null, "sibling_qid": "KOC-2024-11-0466-Q007", "sibling_text": "seemp 3 contents and explain", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP Part III — the ship's operational carbon-intensity (CII) plan", "cross_family": true }, { "answer_id": "IR-TEST-D-004", "score": 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"answer_id": "DFUEL-566-001", "score": 0.7659044861793518, "sibling_score": 0.7659044861793518, "answer_score": null, "sibling_qid": "MUM-2026-05-3267-Q003", "sibling_text": "how gas injection and pilot fuel injection", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "How does a dual-fuel engine use gas fuel with pilot fuel injection — and can it run on both liquid and gas?", "cross_family": true }, { "answer_id": "CR-248-002", "score": 0.7451069951057434, "sibling_score": 0.7451069951057434, "answer_score": 0.5787213087081909, "sibling_qid": "KOL-2023-07-1747-Q009", "sibling_text": "fuel injection in electronic engine", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How fuel is injected in electronically controlled ME / RT-flex engines — how rail or hydraulic pressure produces injection", "cross_family": false } ] }, { "qid": "MUM-2022-11-2715-Q035", "text": "ACB maintenance.", "family": "", "subtopic": "Circuit Breakers (ACB / VCB / SF6)", "tid": "MUM-2022-11-2715", "tray": "review", "candidates": [ { "answer_id": "CB033-C-001", "score": 0.7552276849746704, "sibling_score": 0.7552276849746704, "answer_score": 0.4055870443582535, "sibling_qid": "KOL-2025-09-2876-Q004", "sibling_text": "maintenance on acb", "sibling_family": "", "via": "sibling", "answer_title": "How do you carry out maintenance and testing on an ACB / main circuit breaker?", "cross_family": false }, { "answer_id": "ALPHA-LUB-A-003", "score": 0.3761731773614883, "sibling_score": null, "answer_score": 0.3761731773614883, "sibling_qid": "", "sibling_text": "alpha lubricator overhaul checks and local maintenance", "sibling_family": "", "via": "answer_title", "answer_title": "Alpha lubricator overhaul, checks and local maintenance", "cross_family": false }, { "answer_id": "MSB-ESB-B-001", "score": 0.37272235453128816, "sibling_score": null, "answer_score": 0.37272235453128816, "sibling_qid": "", "sibling_text": "routine maintenance health check of the msb", "sibling_family": "", "via": "answer_title", "answer_title": "Routine maintenance & health check of the MSB", "cross_family": false } ] }, { "qid": "MUM-2022-11-2717-Q007", "text": "Ac system - How to control humidity", "family": "Refrigeration & AC", "subtopic": "Cooling Capacity / Psychrometrics / Humidity Control", "tid": "MUM-2022-11-2717", "tray": "review", "candidates": [ { "answer_id": "HUM-334-001", "score": 0.7493523359298706, "sibling_score": 0.7493523359298706, "answer_score": 0.5672060519456863, "sibling_qid": "KOL-2018-08-1399-Q003", "sibling_text": "air conditioning system everything how does humidistat work", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "How is humidity controlled in a ship air-conditioning plant / accommodation AC?", "cross_family": false }, { "answer_id": "HUM-334-003", "score": 0.6915400624275208, "sibling_score": 0.6915400624275208, "answer_score": 0.5525858044624329, "sibling_qid": 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Automatic temperature and humidity control, and the master controller", "cross_family": false } ] }, { "qid": "MUM-2022-11-2717-Q008", "text": "Aux engine- one unit temp is dropping - reasons", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Unit Temperature Low / Troubleshooting", "tid": "MUM-2022-11-2717", "tray": "new", "candidates": [ { "answer_id": "EGTP-P02-007", "score": 0.6475993990898132, "sibling_score": 0.6475993990898132, "answer_score": null, "sibling_qid": "MUM-2026-07-3794-Q002", "sibling_text": "one unit temp high reasons", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "High Exhaust Temperature — One Unit vs All Units", "cross_family": false }, { "answer_id": "CPP-POL-02", "score": 0.6471697688102722, "sibling_score": 0.6471697688102722, "answer_score": null, "sibling_qid": "CHE-2026-05-0531-Q001", "sibling_text": "one unit exhaust temp less reason checks", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "One main-engine cylinder has a low exhaust temperature — what are the causes and checks?", "cross_family": false }, { "answer_id": "AE-HOT-BLOW-006", "score": 0.6085929274559021, "sibling_score": 0.6085929274559021, "answer_score": 0.5069534450769424, "sibling_qid": "MUM-2026-05-3301-Q003", "sibling_text": "ae one unit air temp low reason", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Auxiliary engine all units exhaust temperature high — reasons", "cross_family": false } ] }, { "qid": "MUM-2022-11-2717-Q009", "text": "Aux engine - lub oil temp is gradually dropping - reasons", "family": "Heat Exchangers & Coolers", "subtopic": "JCW System", "tid": "MUM-2022-11-2717", "tray": "review", "candidates": [ { "answer_id": "AE-LOLOSS-003", "score": 0.7370222806930542, "sibling_score": 0.7370222806930542, "answer_score": 0.5574504554271698, "sibling_qid": "MUM-2024-11-1096-Q006", "sibling_text": "aux engine running fine for few days then lub oilo dropping reasons", "sibling_family": "Auxiliary Engines", "via": "sibling", "answer_title": "Auxiliary engine sump/crankcase level decreases during operation — reasons", "cross_family": true }, { "answer_id": "LO-TEST-P02-003", "score": 0.6451600790023804, "sibling_score": 0.6451600790023804, "answer_score": null, "sibling_qid": "MUM-2026-09-3942-Q008", "sibling_text": "ae lube oil temp increase reasons", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Abnormal LO condition: sump rise, colour, high temperature/pressure, lacquer, deterioration", "cross_family": true }, { "answer_id": "PURIF-172-004", "score": 0.6171809434890747, "sibling_score": 0.6171809434890747, "answer_score": null, "sibling_qid": "MUM-2024-11-2779-Q004", "sibling_text": "ae lub oil level going down one fine morning reasons wants to hear purifier leaked", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Overflow, leakage & water-in-oil troubleshooting", "cross_family": true } ] }, { "qid": "MUM-2022-11-2717-Q013", "text": "Muffing noise in Aux engine - reasons", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE Hot / Blow Past", "tid": "MUM-2022-11-2717", "tray": "new", "candidates": [ { "answer_id": "AEOVT-559-003", "score": 0.5306935906410217, "sibling_score": 0.5306935906410217, "answer_score": null, "sibling_qid": "MUM-2026-01-1905-Q001S3", "sibling_text": "over speed of auxiliary engine", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Overspeed of a diesel generator / auxiliary engine — what it is and why it matters", "cross_family": false }, { "answer_id": "AEFP-471-009", "score": 0.5287737846374512, "sibling_score": 0.5287737846374512, "answer_score": null, "sibling_qid": "KOL-2025-10-3861-Q003", "sibling_text": "aux engine fuel pump overhaul fuel pump hp pipe in aux engine purging answered", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "How is AE fuel-pump overhaul associated with fuel-pump and HP-pipe purging?", "cross_family": false }, { "answer_id": "AE-CRP-007", "score": 0.5280113220214844, "sibling_score": 0.5280113220214844, "answer_score": null, "sibling_qid": "MUM-2025-12-1227-Q013", "sibling_text": "aux engine bearing nip and crush why bearing dont rotate many cross on this", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE big-end / bottom-end bearing — inspection, bedding, nip and crush", "cross_family": false } ] }, { "qid": "MUM-2022-11-2718-Q002", "text": "What are the Fuel injection systems,", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Injection System", "tid": "MUM-2022-11-2718", "tray": "review", "candidates": [ { "answer_id": "CR-248-002", "score": 0.7018882632255554, "sibling_score": 0.7018882632255554, "answer_score": 0.5609161227941513, "sibling_qid": "KOL-2021-07-1602-Q005", "sibling_text": "wartsila fuel injection system", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How fuel is injected in electronically controlled ME / RT-flex engines — how rail or hydraulic pressure produces injection", "cross_family": false }, { "answer_id": "CR-248-001", "score": 0.6798354387283325, "sibling_score": 0.6798354387283325, "answer_score": null, "sibling_qid": "KOL-2018-06-1388-Q003", "sibling_text": "common rail injection system", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "The common rail fuel injection system — layout, working sequence, rail valves, timing & quantity control", "cross_family": false }, { "answer_id": "FIS-221-002", "score": 0.6633448004722595, "sibling_score": 0.6633448004722595, "answer_score": 0.5336216807365417, "sibling_qid": "MUM-2024-10-0963-Q004", "sibling_text": "explain mec engine fuel injection", "sibling_family": "2-Stroke - 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P H. Product tankers? structural", "family": "", "subtopic": "Damage Stability", "tid": "MUM-2022-11-2719", "tray": "new", "candidates": [ { "answer_id": "COT-07", "score": 0.5459492206573486, "sibling_score": 0.5459492206573486, "answer_score": null, "sibling_qid": "MUM-2024-07-0181-Q003", "sibling_text": "strengthening arrangement for product tanker tanks type of frames spacing between frames", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Oil-tanker cargo-tank construction and strengthening", "cross_family": false }, { "answer_id": "COT-03", "score": 0.5440318584442139, "sibling_score": 0.5440318584442139, "answer_score": null, "sibling_qid": "KOL-2024-12-0904-Q005", "sibling_text": "product tanker and chemical tanker structural difference", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Product tanker versus chemical tanker", "cross_family": false }, { "answer_id": "SHELL-PLT-A-003", "score": 0.5360981225967407, "sibling_score": 0.5360981225967407, "answer_score": null, "sibling_qid": "KOC-2026-04-0890-Q002", "sibling_text": "product tanker section and show in dia and cross sheer strake bilge keel camber ballast tank", "sibling_family": "Cargo Ops - 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Fuel Injection & Pumps", "subtopic": "Fuel Injection System", "tid": "MUM-2022-12-1036", "tray": "review", "candidates": [ { "answer_id": "CR-248-002", "score": 0.8103783130645752, "sibling_score": 0.8103783130645752, "answer_score": 0.5901128441095352, "sibling_qid": "KOL-2023-01-1721-Q004", "sibling_text": "electronic fuel injection in me", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How fuel is injected in electronically controlled ME / RT-flex engines — how rail or hydraulic pressure produces injection", "cross_family": false }, { "answer_id": "FIS-221-002", "score": 0.768929660320282, "sibling_score": 0.768929660320282, "answer_score": 0.6035256683826447, "sibling_qid": "MUM-2024-10-0963-Q004", "sibling_text": "explain mec engine fuel injection", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How fuel injection takes place in an ME / ME-C / ME-B engine", "cross_family": false }, { "answer_id": "EICU-MAN-P01-003", "score": 0.7422590851783752, "sibling_score": 0.7422590851783752, "answer_score": null, "sibling_qid": "MUM-2026-05-3248-Q004", "sibling_text": "how fuel injection controlled in me", "sibling_family": "2-Stroke - 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Crankshaft & Bedplate", "subtopic": "Crosshead & Guide Shoes", "tid": "MUM-2022-12-1039", "tray": "new", "candidates": [ { "answer_id": "VIB-BAL-B-003", "score": 0.5571538209915161, "sibling_score": 0.5571538209915161, "answer_score": 0.4294120192527771, "sibling_qid": "KOL-2021-08-1622-Q002", "sibling_text": "2 torsonal vibration how to", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Torsional vibration: what it is, what causes it, how it is controlled", "cross_family": true }, { "answer_id": "VIB-BAL-B-004", "score": 0.5507790446281433, "sibling_score": 0.5507790446281433, "answer_score": null, "sibling_qid": "KOL-2017-11-1856-Q002", "sibling_text": "torsional vibration working of detuner top bracing type and working", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Detuner / detuning wheel versus damper", "cross_family": true }, { "answer_id": "VIB-BAL-B-001", "score": 0.5206328630447388, "sibling_score": 0.5206328630447388, "answer_score": null, "sibling_qid": "KOL-2019-02-1440-Q004", "sibling_text": "torsional vibrations how to damp", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Torsional / viscous vibration damper: working and condition checks", "cross_family": true } ] }, { "qid": "MUM-2022-12-1039-Q015", "text": "How to tight holding down bolts ??", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Holding Down Bolts", "tid": "MUM-2022-12-1039", "tray": "review", "candidates": [ { "answer_id": "TBR-TT-P02-001", "score": 0.7265763878822327, "sibling_score": 0.7265763878822327, "answer_score": null, "sibling_qid": "CHE-2026-05-0641-Q012", "sibling_text": "holding down bolts checks and tightening", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Tie rod tightening / hydraulic tensioning procedure", "cross_family": false }, { "answer_id": "TBR-TT-P02-002", "score": 0.7181426286697388, "sibling_score": 0.7181426286697388, "answer_score": null, "sibling_qid": "MUM-2026-02-2549-Q006", "sibling_text": "holding down bolts tightness check", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Checking tie rod tightness / slackness — stopped and running", "cross_family": false }, { "answer_id": "FB-COUP-001", "score": 0.6815361976623535, "sibling_score": 0.6815361976623535, "answer_score": 0.4705619364976883, "sibling_qid": "MUM-2026-06-3439-Q003", "sibling_text": "how the fitted bolts are bolted", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What fitted bolts are, what they do, and where they sit onboard", "cross_family": false } ] }, { "qid": "MUM-2022-12-1372-Q010", "text": "fire pump starter panel circuit? All components", "family": "Electrical - Motors & Starters", "subtopic": "Starter Panel / Control Circuit", "tid": "MUM-2022-12-1372", "tray": "review", "candidates": [ { "answer_id": "IMSP-004", "score": 0.6901119351387024, "sibling_score": 0.6901119351387024, "answer_score": null, "sibling_qid": "MUM-2026-01-1913-Q005", "sibling_text": "star delta starter all components", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Explain the star-delta starter, and what you find inside it when you open it — its components.", "cross_family": false }, { "answer_id": "REV-MOT-BF67-003", "score": 0.66954106092453, "sibling_score": 0.66954106092453, "answer_score": null, "sibling_qid": "KOL-2023-04-2652-Q007", "sibling_text": "e r vent fan circuit diagram shown a which type of starter in diagram b why two parellel contactor given c what are there for motor protection in circuit diagram", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw the reversing circuit, and where is motor reversing applied on board?", "cross_family": false }, { "answer_id": "STARTER-DEC-B-001", "score": 0.6664484143257141, "sibling_score": 0.6664484143257141, "answer_score": null, "sibling_qid": "KOC-2025-02-1495-Q008", "sibling_text": "sw pump which starter is used and on what basis motor starters are decided on", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Selecting the right starter for a motor", "cross_family": false } ] }, { "qid": "MUM-2022-12-2158-Q004", "text": "Clearances in t/c", "family": "Turbocharger", "subtopic": "TC Clearances / Inspection", "tid": "MUM-2022-12-2158", "tray": "new", "candidates": [ { "answer_id": "TC-KLM-330-001", "score": 0.6492910981178284, "sibling_score": 0.6492910981178284, "answer_score": null, "sibling_qid": "MUM-2026-03-2638-Q005", "sibling_text": "clearances to be taken in tc", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "What are turbocharger K, L and M clearances, and how is each one derived?", "cross_family": false }, { "answer_id": "TURBO-CS-P03-006", "score": 0.5656561255455017, "sibling_score": 0.5656561255455017, "answer_score": 0.26492155641317366, "sibling_qid": "KOL-2023-05-3609-Q003", "sibling_text": "t c clearance effects", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharger clearances: axial float, radial, K/L/M, effects", "cross_family": false }, { "answer_id": "TC-CS-P01-006", "score": 0.5517634749412537, "sibling_score": 0.5517634749412537, "answer_score": 0.2615364700555801, "sibling_qid": "KOC-2024-01-1826-Q004", "sibling_text": "t c overhaul clearance", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "F·Turbocharger overhaul and clearances (ME and AE)", "cross_family": false } ] }, { "qid": "MUM-2022-12-2720-Q002", "text": "Type of engine", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2022-12-2720", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.8006401062011719, "sibling_score": 0.8006401062011719, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.7930276393890381, "sibling_score": 0.7930276393890381, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-001", "score": 0.45252704024314877, "sibling_score": null, "answer_score": 0.45252704024314877, "sibling_qid": "", "sibling_text": "1 turbocharger type main engine vs generator engine compressor is centrifugal in both cases only the turbine type differs large slow speed main engine axial flow turbine single stage constant pressure system", "sibling_family": "", "via": "answer_title", "answer_title": "1. Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "MUM-2022-12-2720-Q004", "text": "NAS number of LO ?", "family": "Steering Gear & Hydraulics", "subtopic": "Hydraulic Oil Cleanliness / NAS / ISO Particle Count", "tid": "MUM-2022-12-2720", "tray": "new", "candidates": [ { "answer_id": "OWS-ORB-006", "score": 0.464435875415802, "sibling_score": 0.464435875415802, "answer_score": null, "sibling_qid": "MUM-2026-03-0808-Q002", "sibling_text": "orb entry for lo", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "6. Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": true }, { "answer_id": "ANCH-CHN-A-003", "score": 0.44928255677223206, "sibling_score": 0.44928255677223206, "answer_score": null, "sibling_qid": "MUM-2026-01-0726-Q004", "sibling_text": "en number", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Equipment Number & how cable length is decided", "cross_family": true }, { "answer_id": "LO-TEST-P01-005", "score": 0.4231939911842346, "sibling_score": 0.4231939911842346, "answer_score": null, "sibling_qid": "KOL-2023-07-1748-Q002", "sibling_text": "lo properties", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Lube-oil properties, types and selection by duty", "cross_family": true } ] }, { "qid": "MUM-2022-12-2720-Q006", "text": "What does 10/10000 mean what unit ?", "family": "Steering Gear & Hydraulics", "subtopic": "Hydraulic Oil Cleanliness / NAS / ISO Particle Count", "tid": "MUM-2022-12-2720", "tray": "new", "candidates": [ { "answer_id": "EEXI-001", "score": 0.39649879932403564, "sibling_score": 0.39649879932403564, "answer_score": null, "sibling_qid": "MUM-2026-02-0730-Q006", "sibling_text": "units of eexi", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is EEXI? Explain it in full — formula, unit, application, and what an existing ship is", "cross_family": true }, { "answer_id": "ISM-ELEM-003", "score": 0.3883011043071747, "sibling_score": 0.3883011043071747, "answer_score": null, "sibling_qid": "MUM-2020-09-0004-Q002", "sibling_text": "ism code element 10", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": true }, { "answer_id": "EEDI-B-001", "score": 0.3782303035259247, "sibling_score": 0.3782303035259247, "answer_score": null, "sibling_qid": "MUM-2026-04-0901-Q008", "sibling_text": "unit", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "EEDI — formula, unit and the calculation terms", "cross_family": true } ] }, { "qid": "MUM-2022-12-2720-Q007", "text": "ISO particle size what is it ? KEY ANS : Microns", "family": "Steering Gear & Hydraulics", "subtopic": "Hydraulic Oil Cleanliness / NAS / ISO Particle Count", "tid": "MUM-2022-12-2720", "tray": "new", "candidates": [ { "answer_id": "LOF-359-002", "score": 0.5420746803283691, "sibling_score": 0.5420746803283691, "answer_score": null, "sibling_qid": "NOI-2026-09-0008-Q007", "sibling_text": "what is mesh size and micron size", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "FO Filter vs LO Filter — Which Is Finer, and Why?", "cross_family": true }, { "answer_id": "FLT-BF052-005", "score": 0.4267628788948059, "sibling_score": 0.4267628788948059, "answer_score": null, "sibling_qid": "KOL-2026-04-1214-Q010", "sibling_text": "1micron equals how many meter", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "What type of fuel filter is fitted, and what is a micron in filter rating?", "cross_family": true }, { "answer_id": "WIDAS-SMK-007", "score": 0.41956567764282227, "sibling_score": 0.41956567764282227, "answer_score": null, "sibling_qid": "MUM-2026-03-0855-Q003", "sibling_text": "diff between iso ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Smoke sampling line — testing, confirming clear, and what is in the tube", "cross_family": true } ] }, { "qid": "MUM-2022-12-2720-Q008", "text": "What is Micron ?", "family": "Steering Gear & Hydraulics", "subtopic": "Hydraulic Oil Cleanliness / NAS / ISO Particle Count", "tid": "MUM-2022-12-2720", "tray": "new", "candidates": [ { "answer_id": "FLT-BF052-005", "score": 0.4869127869606018, "sibling_score": 0.4869127869606018, "answer_score": 0.29911863207817074, "sibling_qid": "KOL-2026-04-1214-Q010", "sibling_text": "1micron equals how many meter", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "What type of fuel filter is fitted, and what is a micron in filter rating?", "cross_family": true }, { "answer_id": "MICR-002", "score": 0.4564068913459778, "sibling_score": 0.4564068913459778, "answer_score": null, "sibling_qid": "KOL-2018-08-3168-Q005", "sibling_text": "micrometer error check", "sibling_family": "Gauges & Tools", "via": "sibling", "answer_title": "Zero setting, calibration, error check and trueness", "cross_family": true }, { "answer_id": "LOF-359-002", "score": 0.43682360649108887, "sibling_score": 0.43682360649108887, "answer_score": null, "sibling_qid": "NOI-2026-09-0008-Q007", "sibling_text": "what is mesh size and micron size", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "FO Filter vs LO Filter — Which Is Finer, and Why?", "cross_family": true } ] }, { "qid": "MUM-2022-12-2720-Q012", "text": "Cylinder head is removed ? How to take out piston for Aux engine ?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Piston & Piston Rings", "tid": "MUM-2022-12-2720", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-002", "score": 0.7552295327186584, "sibling_score": 0.7552295327186584, "answer_score": null, "sibling_qid": "KOL-2019-04-3231-Q003", "sibling_text": "aux engine one unit piston stuck how to remove", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Seized piston in an AE liner — actions and safe removal", "cross_family": false }, { "answer_id": "AE-CRP-001", "score": 0.7087532877922058, "sibling_score": 0.7087532877922058, "answer_score": 0.5276097446680069, "sibling_qid": "MUM-2026-03-2951-Q006", "sibling_text": "how will you individually take out the piston only with motorman of ae", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE piston overhaul — removal, ring handling and refit", "cross_family": false }, { "answer_id": "AE-MB-002", "score": 0.6782671809196472, "sibling_score": 0.6782671809196472, "answer_score": null, "sibling_qid": "KOL-2021-05-3407-Q003", "sibling_text": "removal of bottom shell of aux engine", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Removing the lower shell / bottom half of an AE main bearing", "cross_family": false } ] }, { "qid": "MUM-2023-01-0079-Q001", "text": "attempt: 2", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2023-01-0079", "tray": "new", "candidates": [ { "answer_id": "AV6-P05-01", "score": 0.5007383823394775, "sibling_score": 0.5007383823394775, "answer_score": null, "sibling_qid": "KOC-2025-03-0558-Q007", "sibling_text": "seemp 2", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP Part II — IMO DCS plan and contents", "cross_family": true }, { "answer_id": "DUS-P1-01", "score": 0.48402881622314453, "sibling_score": 0.48402881622314453, "answer_score": null, "sibling_qid": "KOC-2025-02-1485-Q005", "sibling_text": "drychecks as 2e", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Drydock preparation as 2E — full workflow from office confirmation to entry", "cross_family": true }, { "answer_id": "LO-TEST-P01-005", "score": 0.4383058249950409, "sibling_score": 0.4383058249950409, "answer_score": null, "sibling_qid": "KOL-2018-04-1367-Q003", "sibling_text": "2 lo contaimination me", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Lube-oil properties, types and selection by duty", "cross_family": true } ] }, { "qid": "MUM-2023-01-0079-Q002", "text": "What ship sailed on?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2023-01-0079", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.7553183436393738, "sibling_score": 0.7553183436393738, "answer_score": null, "sibling_qid": "MUM-2026-06-3479-Q001", "sibling_text": "what kind of ship sailed on", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7094385027885437, "sibling_score": 0.7094385027885437, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.3929312154650688, "sibling_score": null, "answer_score": 0.3929312154650688, "sibling_qid": "", "sibling_text": "type a and type b ships how form and cargo set the freeboard", "sibling_family": "", "via": "answer_title", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "MUM-2023-01-0079-Q005", "text": "What is detainable deficiencies as per MLC", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2023-01-0079", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-007", "score": 0.7286445498466492, "sibling_score": 0.7286445498466492, "answer_score": 0.4027727127075195, "sibling_qid": "MUM-2026-03-0826-Q004", "sibling_text": "detainable deficiencies as per mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false }, { "answer_id": "DCG-002", "score": 0.5559051036834717, "sibling_score": 0.5559051036834717, "answer_score": 0.3819826856255531, "sibling_qid": "KOL-2025-04-0931-Q013", "sibling_text": "example for detainable deficiency", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What are the reasons for PSC detention and what is a detainable deficiency? Which engine-room deficiencies can detain your ship, which conventions can ground a detainable deficiency, and what is banning by PSC?", "cross_family": true }, { "answer_id": "IGC-IGF-005", "score": 0.5385276079177856, "sibling_score": 0.5385276079177856, "answer_score": 0.38969186395406724, "sibling_qid": "KOC-2024-03-0308-Q002", "sibling_text": "detainable deficiencies as per igc code", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Detainable deficiencies under the IGC Code", "cross_family": true } ] }, { "qid": "MUM-2023-01-0079-Q006", "text": "What is young seafarer?", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2023-01-0079", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-004", "score": 0.7064714431762695, "sibling_score": 0.7064714431762695, "answer_score": 0.411286586523056, "sibling_qid": "MUM-2026-07-3682-Q005", "sibling_text": "young seafarer", "sibling_family": "MLC", "via": "sibling", "answer_title": "Young seafarers — minimum age, night work, and what the 2/E must ensure", "cross_family": false }, { "answer_id": "MLC-WRH-B-011", "score": 0.4198962152004242, "sibling_score": 0.4198962152004242, "answer_score": null, "sibling_qid": "MUM-2026-04-0914-Q007", "sibling_text": "what is the complaint procedure onboard for seafarer", "sibling_family": "MLC", "via": "sibling", "answer_title": "The on-board complaint and grievance procedure", "cross_family": false }, { "answer_id": "LSA-LB-A-010", "score": 0.4179181456565857, "sibling_score": 0.4179181456565857, "answer_score": null, "sibling_qid": "KOL-2019-11-0354-Q003", "sibling_text": "bulk carrier lifeboat regulations and y", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Ship-type differences — tanker (fire-protected) vs bulk / cargo lifeboats", "cross_family": true } ] }, { "qid": "MUM-2023-01-0079-Q007", "text": "What is CBA", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2023-01-0079", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-010", "score": 0.5948002934455872, "sibling_score": 0.5948002934455872, "answer_score": 0.27656504362821577, "sibling_qid": "MUM-2025-11-0573-Q005", "sibling_text": "which parties are a part of cba", "sibling_family": "MLC", "via": "sibling", "answer_title": "SEA, the CBA parties, and how wages are set — action on non-payment", "cross_family": false }, { "answer_id": "CB033-C-001", "score": 0.45364445447921753, "sibling_score": 0.45364445447921753, "answer_score": null, "sibling_qid": "CHE-2026-04-0370-Q002", "sibling_text": "what is acb", "sibling_family": "Electrical - Switchgear & Protection", "via": "sibling", "answer_title": "How do you carry out maintenance and testing on an ACB / main circuit breaker?", "cross_family": true }, { "answer_id": "CB-ACBVCBSF6-E-001", "score": 0.44341403245925903, "sibling_score": 0.44341403245925903, "answer_score": null, "sibling_qid": "MUM-2025-07-1556-Q002", "sibling_text": "cb types", "sibling_family": "", "via": "sibling", "answer_title": "What are the common types of circuit breakers used onboard and where are ACB, MCB, MCCB, VCB and SF6 breakers applied?", "cross_family": false } ] }, { "qid": "MUM-2023-01-0081-Q002", "text": "Why we should not fight economiser fire with water?", "family": "Boilers - Operations & Firing", "subtopic": "Uptake Fire", "tid": "MUM-2023-01-0081", "tray": "new", "candidates": [ { "answer_id": "SIH-FIRE-001", "score": 0.5785200595855713, "sibling_score": 0.5785200595855713, "answer_score": null, "sibling_qid": "MUM-2026-05-3147-Q002", "sibling_text": "how will you fight economiser fire", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "How will you identify an economiser / EGB fire — indications, symptoms and control?", "cross_family": false }, { "answer_id": "UPT-FIRE-001", "score": 0.5296250581741333, "sibling_score": 0.5296250581741333, "answer_score": null, "sibling_qid": "MUM-2026-04-2960-Q009", "sibling_text": "accumulated oil in furnace caught fire how will you extinguish", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "The 4/E reports an uptake fire — your actions as 2/E", "cross_family": false }, { "answer_id": "CO2-SYS-001", "score": 0.5173068642616272, "sibling_score": 0.5173068642616272, "answer_score": null, "sibling_qid": "KOC-2025-12-0761-Q010", "sibling_text": "why co2 is last resort of fire fighting said co2 process is an ireversible process once it activated there is no back up for the further voyage he said there are other reasons also", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 release procedure, shutdowns, re-entry and casualty-use decisions", "cross_family": true } ] }, { "qid": "MUM-2023-01-0081-Q004", "text": "Free surface effect.", "family": "Ship Construction & Stability", "subtopic": "Static / Dynamic Stability/damage stability", "tid": "MUM-2023-01-0081", "tray": "review", "candidates": [ { "answer_id": "FSE-P03-003", "score": 0.7662019729614258, "sibling_score": 0.7662019729614258, "answer_score": 0.417999204993248, "sibling_qid": "KOC-2026-04-0900-Q004", "sibling_text": "explain free surface effect calculation", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "3. Formula, factors and calculation", "cross_family": false }, { "answer_id": "FSE-P01-001", "score": 0.7613072991371155, "sibling_score": 0.7613072991371155, "answer_score": 0.49070338904857635, "sibling_qid": "CHE-2026-05-0626-Q008", "sibling_text": "explain free surface effect", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "What is free surface effect? Explain the basic concept.", "cross_family": false }, { "answer_id": "FSE-P02-001", "score": 0.5347528547048569, "sibling_score": null, "answer_score": 0.5347528547048569, "sibling_qid": "", "sibling_text": "reducing and correcting free surface effect in practice fse is a virtual rise of g i e a virtual loss of gm m is fixed by the waterplane and does not move free surface correction rise of g i tank w in metres the liquid density is in it not just geometry", "sibling_family": "", "via": "answer_title", "answer_title": "Reducing and correcting free surface effect in practice", "cross_family": false } ] }, { "qid": "MUM-2023-01-0082-Q004", "text": "Marpol annex1, dicharge criteria, Certificate details, Sopep, orb", "family": "MARPOL - Annex I (Oil)", "subtopic": "SOPEP", "tid": "MUM-2023-01-0082", "tray": "review", "candidates": [ { "answer_id": "ODC-001", "score": 0.6706979870796204, "sibling_score": 0.6706979870796204, "answer_score": null, "sibling_qid": "KOL-2026-07-4264-Q001", "sibling_text": "marpol annex 1 discharge critera", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "MARPOL Annex I oil discharge criteria — the overall framework", "cross_family": false }, { "answer_id": "ODC-003", "score": 0.6566147208213806, "sibling_score": 0.6566147208213806, "answer_score": null, "sibling_qid": "KOL-2023-12-0790-Q004", "sibling_text": "discharge criteria in special and outside special area according to marpol annex 1", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Machinery-space bilge discharge inside a special area — and the difference from outside", "cross_family": false }, { "answer_id": "AVICERT-006", "score": 0.6401373147964478, "sibling_score": 0.6401373147964478, "answer_score": null, "sibling_qid": "KOL-2025-12-1141-Q005", "sibling_text": "certificates related marpol orb part 1 2", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What certificates are carried on board under all the MARPOL annexes, Annex I to Annex VI?", "cross_family": true } ] }, { "qid": "MUM-2023-01-0082-Q007", "text": "Period of roll Can't recollect more now", "family": "", "subtopic": "Static / Dynamic Stability", "tid": "MUM-2023-01-0082", "tray": "new", "candidates": [ { "answer_id": "BK-002", "score": 0.6221070289611816, "sibling_score": 0.6221070289611816, "answer_score": null, "sibling_qid": "KOL-2026-05-4185-Q004", "sibling_text": "period of roll", "sibling_family": "", "via": "sibling", "answer_title": "How does a bilge keel reduce rolling, and how does it relate to roll period and radius of gyration?", "cross_family": false }, { "answer_id": "BK-001", "score": 0.4678652286529541, "sibling_score": 0.4678652286529541, "answer_score": null, "sibling_qid": "KOC-2025-07-0633-Q017", "sibling_text": "how its reducing rolling", "sibling_family": "", "via": "sibling", "answer_title": "What is a bilge keel and what is its purpose?", "cross_family": false }, { "answer_id": "FSE-P03-002", "score": 0.4658094048500061, "sibling_score": 0.4658094048500061, "answer_score": null, "sibling_qid": "KOL-2019-10-0329-Q005", "sibling_text": "with rolling magnitude so gm reducing is not permanent and so", "sibling_family": "", "via": "sibling", "answer_title": "2. Effect on ship stability — GM, GZ and centre of gravity", "cross_family": false } ] }, { "qid": "MUM-2023-01-0083-Q001", "text": "(1) Risk Assessment", "family": "Risk & Safety Management", "subtopic": "Enclosed Space Entry", "tid": "MUM-2023-01-0083", "tray": "review", "candidates": [ { "answer_id": "RA-MGMT-B-001", "score": 0.7107078433036804, "sibling_score": 0.7107078433036804, "answer_score": null, "sibling_qid": "KOL-2019-12-3306-Q005", "sibling_text": "one type of risk assessment elaborate", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "How is a shipboard risk assessment prepared and carried out?", "cross_family": false }, { "answer_id": "RA-MGMT-A-001", "score": 0.6937025785446167, "sibling_score": 0.6937025785446167, "answer_score": 0.5033020436763763, "sibling_qid": "MUM-2025-09-0446-Q003", "sibling_text": "2 what is risk assessment and how we calculate", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "What is risk, what is hazard, and what is risk assessment?", "cross_family": false }, { "answer_id": "LVC-577-001", "score": 0.6771463751792908, "sibling_score": 0.6771463751792908, "answer_score": 0.5268858075141907, "sibling_qid": "MUM-2026-06-3392-Q009", "sibling_text": "risk assessment what is likelihood and consequences", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "Define likelihood and consequence in risk assessment", "cross_family": false } ] }, { "qid": "MUM-2023-01-0946-Q001", "text": "ME Fuel system full, HPS, HCU", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Injection System", "tid": "MUM-2023-01-0946", "tray": "new", "candidates": [ { "answer_id": "FIVA-220-002", "score": 0.5737395882606506, "sibling_score": 0.5737395882606506, "answer_score": null, "sibling_qid": "MUM-2022-10-2702-Q018", "sibling_text": "after i told hcu fiva controls fuel injection exh vakve actuation cylindee lubrication start air system wanted to hear start air", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "FIVA control of fuel injection — timing, quantity and actuation", "cross_family": false }, { "answer_id": "FQCC-583-B-007", "score": 0.5581517219543457, "sibling_score": 0.5581517219543457, "answer_score": null, "sibling_qid": "KOL-2017-12-1334-Q004", "sibling_text": "hcv lcv of fuel 5", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "High and low calorific value — the difference and which one you use", "cross_family": false }, { "answer_id": "CR-248-002", "score": 0.5489398837089539, "sibling_score": 0.5489398837089539, "answer_score": 0.41900022327899933, "sibling_qid": "KOC-2026-02-1103-Q010", "sibling_text": "how in me engine fuel injection occurs fuel pump controlled by hydraulic pressure x pressure of hyd oil and fuel oil 250 bar and 1000 bar x how 250 bar generates 1000 bar area is much larger internal as second engineer how you will do a decarb expain detail", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How fuel is injected in electronically controlled ME / RT-flex engines — how rail or hydraulic pressure produces injection", "cross_family": false } ] }, { "qid": "MUM-2023-01-0946-Q004", "text": "Oil Mist Detector working, action if alarm", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "OMD / Oil Mist Detector", "tid": "MUM-2023-01-0946", "tray": "review", "candidates": [ { "answer_id": "OMD-001", "score": 0.8045206665992737, "sibling_score": 0.8045206665992737, "answer_score": 0.5084788858890533, "sibling_qid": "KOC-2025-04-1037-Q014", "sibling_text": "oil mist alarm action", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "The OMD alarm sounds on your watch. What are your actions, the checks and crankcase inspection that follow, and what are the alarm levels?", "cross_family": false }, { "answer_id": "LO-PR-ALM-001", "score": 0.6491884589195251, "sibling_score": 0.6491884589195251, "answer_score": null, "sibling_qid": "MUM-2023-11-2211-Q001", "sibling_text": "actions as 2e when lo lp alarm main engine", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main engine low lubricating-oil pressure — alarm, slowdown or trip: your actions as 2/E, and is the alarm true or false?", "cross_family": false }, { "answer_id": "CCE-322-005", "score": 0.5292132079601287, "sibling_score": null, "answer_score": 0.5292132079601287, "sibling_qid": "", "sibling_text": "action on an omd crankcase explosion alarm checking a faulty sensor treat the alarm as real first never assume false reduce to slow stop the engine inform the bridge", "sibling_family": "", "via": "answer_title", "answer_title": "Action on an OMD / crankcase-explosion alarm; checking a faulty sensor", "cross_family": false } ] }, { "qid": "MUM-2023-01-1374-Q001", "text": "Msb safeties , under frequency bola to pel diya , bolta hai try out kiya hai kabhi .", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator Protection", "tid": "MUM-2023-01-1374", "tray": "new", "candidates": [ { "answer_id": "MSB-ESB-F-001", "score": 0.5479884743690491, "sibling_score": 0.5479884743690491, "answer_score": 0.39337090253829954, "sibling_qid": "MUM-2026-06-3570-Q001", "sibling_text": "msb safety", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "What safeties, protection trips, relays and alarms are provided on the MSB/ESB and how are they tested?", "cross_family": false }, { "answer_id": "MSB-ESB-E-001", "score": 0.5472024083137512, "sibling_score": 0.5472024083137512, "answer_score": 0.355025640130043, "sibling_qid": "MUM-2026-09-3985-Q001", "sibling_text": "msb safety", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "What safeties, protection trips, relays and alarms are provided on the MSB / ESB, and how are they tested?", "cross_family": false }, { "answer_id": "EPIRB-002", "score": 0.35244795978069304, "sibling_score": null, "answer_score": 0.35244795978069304, "sibling_qid": "", "sibling_text": "how is the epirb tested monthly built in self test to the maker s manual plus a float free mounting check logged in the gmdss log never a live transmission annual performance test by an approved shore based maintainer or qualified technician solas iv 15 9 to the msc 1 circ 1040 rev 2 testing guidelines at intervals not exceeding 12 months frequency stability signal strength coding", "sibling_family": "", "via": "answer_title", "answer_title": "How is the EPIRB tested?", "cross_family": false } ] }, { "qid": "MUM-2023-01-1375-Q003", "text": "(3) How will you simulate blackout test?", "family": "Electrical - Generator & Alternator", "subtopic": "Black Out Test / Recovery", "tid": "MUM-2023-01-1375", "tray": "review", "candidates": [ { "answer_id": "BOT-001", "score": 0.6582942008972168, "sibling_score": 0.6582942008972168, "answer_score": 0.47209852337837216, "sibling_qid": "MUM-2026-06-3546-Q004", "sibling_text": "actual blackout test in front of surveyor and precautions to taken before simulate", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "How do you carry out and demonstrate the blackout test in front of the surveyor — procedure, simulation, precautions before simulating, and what happens to machinery on the emergency switchboard?", "cross_family": false }, { "answer_id": "EMG-DG-P04-001", "score": 0.6016978621482849, "sibling_score": 0.6016978621482849, "answer_score": null, "sibling_qid": "KOC-2026-05-0028-Q010", "sibling_text": "black out test test simulation he accepted", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Emergency generator on-load / load-test procedure", "cross_family": false }, { "answer_id": "PTRIP-BO-001", "score": 0.43544153571128846, "sibling_score": null, "answer_score": 0.43544153571128846, "sibling_qid": "", "sibling_text": "blackout test how would you carry it out purpose prove the whole chain emergency generator auto start and connection within 45 seconds standby generator auto start and sequential restart before a real blackout tests it for you permission first chief engineer s authority bridge and master informed safe conditions only in port or open sea never manoeuvring or restricted waters", "sibling_family": "", "via": "answer_title", "answer_title": "Blackout test — how would you carry it out?", "cross_family": false } ] }, { "qid": "MUM-2023-01-1376-Q001", "text": "High voltage system safety", "family": "", "subtopic": "High Voltage System", "tid": "MUM-2023-01-1376", "tray": "review", "candidates": [ { "answer_id": "HV-SYS-P04-001", "score": 0.7546390891075134, "sibling_score": 0.7546390891075134, "answer_score": 0.5595474362373352, "sibling_qid": "KOC-2025-10-1594-Q003", "sibling_text": "high voltage system safeties", "sibling_family": "", "via": "sibling", "answer_title": "HV-SYS-P04-001 - HV hazards, advantages and safeties", "cross_family": false }, { "answer_id": "T038-P01-002", "score": 0.7415156960487366, "sibling_score": 0.7415156960487366, "answer_score": null, "sibling_qid": "MUM-2026-03-2061-Q003", "sibling_text": "safeties in high voltage system", "sibling_family": "Electrical - High Voltage", "via": "sibling", "answer_title": "HV system onboard — layout, components, applications, earthing & protection", "cross_family": false }, { "answer_id": "IR-TEST-B-007", "score": 0.5608701705932617, "sibling_score": null, "answer_score": 0.5608701705932617, "sibling_qid": "", "sibling_text": "hv ir test safety precautions and how hv differs from lv hv stores a lethal capacitive charge discharge to earth with a resistor fitted rod before and after earth the frame leave earthed full safe isolation hv permit rack out lock off tag prove dead with a proved hv detector", "sibling_family": "", "via": "answer_title", "answer_title": "HV IR test — safety precautions and how HV differs from LV", "cross_family": false } ] }, { "qid": "MUM-2023-01-1376-Q002", "text": "High voltage types of circuit breakers", "family": "", "subtopic": "Circuit Breakers (ACB / VCB / SF6)", "tid": "MUM-2023-01-1376", "tray": "review", "candidates": [ { "answer_id": "CB-ACBVCBSF6-E-001", "score": 0.7734262347221375, "sibling_score": 0.7734262347221375, "answer_score": 0.5727114498615264, "sibling_qid": "KOC-2024-02-0296-Q014", "sibling_text": "types of circuit breakers what is used for hv", "sibling_family": "", "via": "sibling", "answer_title": "What are the common types of circuit breakers used onboard and where are ACB, MCB, MCCB, VCB and SF6 breakers applied?", "cross_family": false }, { "answer_id": "CB-ACBVCB-B-001", "score": 0.7636605501174927, "sibling_score": 0.7636605501174927, "answer_score": null, "sibling_qid": "KOL-2020-01-2366-Q004", "sibling_text": "type of breakers explain what type of breaker use in high voltage system system high voltage safeties", "sibling_family": "", "via": "sibling", "answer_title": "ACB/main circuit breaker safeties, trips, settings and testing", "cross_family": false }, { "answer_id": "CBKR-H-001", "score": 0.7597718238830566, "sibling_score": 0.7597718238830566, "answer_score": 0.5894045114517211, "sibling_qid": "KOL-2020-11-0435-Q012", "sibling_text": "hv voltage and sf6 breaker", "sibling_family": "", "via": "sibling", "answer_title": "How do VCB and SF6 breakers work in a high-voltage system, and why are they used instead of an ACB?", "cross_family": false } ] }, { "qid": "MUM-2023-01-1377-Q004", "text": "Zener barrier?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Zener / Diode / Rectifier", "tid": "MUM-2023-01-1377", "tray": "review", "candidates": [ { "answer_id": "EPC-P02-03", "score": 0.7391281127929688, "sibling_score": 0.7391281127929688, "answer_score": 0.4375505745410919, "sibling_qid": "CHE-2026-02-0333-Q002", "sibling_text": "zener barrier", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Where is a zener diode used on board and why — voltage regulator, AVR, clipper — and explain one application in detail.", "cross_family": false }, { "answer_id": "EPC-P02-01", "score": 0.7386656403541565, "sibling_score": 0.7386656403541565, "answer_score": 0.4725635677576065, "sibling_qid": "MUM-2026-03-2019-Q005", "sibling_text": "zener barrier", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a zener diode? Draw its symbol, explain its working principle, and draw and explain its characteristic curve including the zener (breakdown) voltage.", "cross_family": false }, { "answer_id": "HAZ-EX-B-001", "score": 0.671729326248169, "sibling_score": 0.671729326248169, "answer_score": null, "sibling_qid": "CHE-2026-03-0358-Q005", "sibling_text": "zener barrier working in intrinsically safe", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Intrinsically safe (Ex i) equipment — what it is, how it works, where it is used, how you identify it", "cross_family": false } ] }, { "qid": "MUM-2023-01-2160-Q001", "text": "Welding electrodes for Cast iron welding", "family": "Workshop & Welding", "subtopic": "Cast Iron Welding", "tid": "MUM-2023-01-2160", "tray": "review", "candidates": [ { "answer_id": "WELD-B-001", "score": 0.8369092345237732, "sibling_score": 0.8369092345237732, "answer_score": 0.5032435268163681, "sibling_qid": "MUM-2026-06-3641-Q001", "sibling_text": "cast iron welding which electrode", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding & crack-repair of aluminium and cast iron, including metal stitching", "cross_family": false }, { "answer_id": "LH-ELEC-001", "score": 0.7635543942451477, "sibling_score": 0.7635543942451477, "answer_score": null, "sibling_qid": "MUM-2026-06-3451-Q014", "sibling_text": "ci welding electrodes", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "1. Where are low-hydrogen electrodes used onboard?", "cross_family": false }, { "answer_id": "LH-ELEC-003", "score": 0.5607404708862305, "sibling_score": null, "answer_score": 0.5607404708862305, "sibling_qid": "", "sibling_text": "3 how do you select or order the correct welding electrode or rod match to base material and strength first mild steel high tensile stainless cast iron this fixes the electrode family then coating type for the duty rutile e g e6013 general basic low hydrogen e7018 crack sensitive or high tensile", "sibling_family": "", "via": "answer_title", "answer_title": "3. How do you select or order the correct welding electrode or rod?", "cross_family": false } ] }, { "qid": "MUM-2023-01-2160-Q002", "text": "Cast iron welding: Instructions as a 2E to Fitter", "family": "Workshop & Welding", "subtopic": "Cast Iron Welding", "tid": "MUM-2023-01-2160", "tray": "review", "candidates": [ { "answer_id": "WELD-B-001", "score": 0.7524577975273132, "sibling_score": 0.7524577975273132, "answer_score": 0.5228991121053695, "sibling_qid": "CHE-2026-05-0531-Q005", "sibling_text": "cast iron welding procedure", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding & crack-repair of aluminium and cast iron, including metal stitching", "cross_family": false }, { "answer_id": "LH-ELEC-006", "score": 0.5238320887088775, "sibling_score": null, "answer_score": 0.5238320887088775, "sibling_qid": "", "sibling_text": "6 how would you approach a cast iron valve repair when the examiner probes welding and low hydrogen electrodes first response replace or fit a sound same size valve a welded cast iron repair is a stop gap not equal to new if welding cast iron not a plain mild steel low hydrogen rod the high carbon makes a hard brittle cracking weld", "sibling_family": "", "via": "answer_title", "answer_title": "6. How would you approach a cast-iron valve repair when the examiner probes welding and low-hydrogen electrodes?", "cross_family": false }, { "answer_id": "PIPEFAB-006", "score": 0.4963211089372635, "sibling_score": null, "answer_score": 0.4963211089372635, "sibling_qid": "", "sibling_text": "how do you weld a pipe to a flange explain with a sketch and how you decide the electrode diameter and welding current fit the flange square slip on set back from the pipe end checked square with a set square before tacking tack at 3 4 points re check squareness alignment then weld", "sibling_family": "", "via": "answer_title", "answer_title": "How do you weld a pipe to a flange? Explain with a sketch, and how you decide the electrode diameter and welding current", "cross_family": false } ] }, { "qid": "MUM-2023-01-2161-Q001", "text": "margin plate", "family": "", "subtopic": "Margin Plate", "tid": "MUM-2023-01-2161", "tray": "review", "candidates": [ { "answer_id": "MARGIN-LINE-001", "score": 0.7143641710281372, "sibling_score": 0.7143641710281372, "answer_score": 0.3612833723425865, "sibling_qid": "MUM-2026-04-0880-Q002", "sibling_text": "margine plate", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "What is the margin line, and what is its purpose?", "cross_family": false }, { "answer_id": "FWFB-P02-001", "score": 0.5520129203796387, "sibling_score": 0.5520129203796387, "answer_score": null, "sibling_qid": "MUM-2026-02-0753-Q003", "sibling_text": "guset plate coffin plate margin plate", "sibling_family": "", "via": "sibling", "answer_title": "Brackets, knees and gusset plates", "cross_family": false }, { "answer_id": "MARGIN-LINE-002", "score": 0.3456732779741287, "sibling_score": null, "answer_score": 0.3456732779741287, "sibling_qid": "", "sibling_text": "why is the margin line imaginary and not permanently marked it is adesign calculation referenceused in subdivision and damage stability work not an operational limit the crew operate to themarkedlines deck line plimsoll load line marks draught marks intact loading", "sibling_family": "", "via": "answer_title", "answer_title": "Why is the margin line imaginary, and not permanently marked?", "cross_family": false } ] }, { "qid": "MUM-2023-01-2161-Q003", "text": "panting strake", "family": "SOLAS", "subtopic": "Panting / Pounding / Slamming", "tid": "MUM-2023-01-2161", "tray": "review", "candidates": [ { "answer_id": "PPS-230-002", "score": 0.6679583191871643, "sibling_score": 0.6679583191871643, "answer_score": 0.29723337590694426, "sibling_qid": "MUM-2022-07-0014-Q006", "sibling_text": "panting stringers", "sibling_family": "SOLAS", "via": 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protection plan grounding continuity against the approved acceptance criterion plate and weld cracks pintle clearance measured with feeler the numerical acceptance limit is class specific and ", "sibling_family": "", "via": "answer_title", "answer_title": "Rudder checks and rudder-blade tightness/leak test in drydock", "cross_family": false }, { "answer_id": "STEER-055-A-005", "score": 0.3753909260034561, "sibling_score": null, "answer_score": 0.3753909260034561, "sibling_qid": "", "sibling_text": "checks clearances trials and steering room duties routine 2 e checks reservoir oil levels leaks motor pump heat noise vibration rudder follows helm both ways without hunting rai agrees with the actual rudder alarms healthy confined water critical transit run both power units redundancy test before entry no maintenance standby manning comms with the bridge confirmed", "sibling_family": "", "via": "answer_title", "answer_title": "Checks, clearances, trials and steering-room duties", "cross_family": false } ] }, { "qid": "MUM-2023-02-2164-Q002", "text": "How to paint Rudder internally ?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Painting", "tid": "MUM-2023-02-2164", "tray": "review", "candidates": [ { "answer_id": "HULL-PAINT-002", "score": 0.720717191696167, "sibling_score": 0.720717191696167, "answer_score": null, "sibling_qid": "CHE-2026-02-0110-Q012", "sibling_text": "rudder internal painting", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Types of hull coating, the paint scheme by section, and why each is used", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.720717191696167, "sibling_score": 0.720717191696167, "answer_score": null, "sibling_qid": "MUM-2026-05-3150-Q003", "sibling_text": "rudder internal painting", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "TRS-002", "score": 0.47506046295166016, "sibling_score": 0.47506046295166016, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false } ] }, { "qid": "MUM-2023-02-2164-Q003", "text": "Thrust pad clearance ?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "MUM-2023-02-2164", "tray": "review", "candidates": [ { "answer_id": "STEER-055-A-005", "score": 0.8156885504722595, "sibling_score": 0.8156885504722595, "answer_score": null, "sibling_qid": "KOL-2021-08-1621-Q011", "sibling_text": "thrust pad clearance", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Checks, clearances, trials and 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precaution, how to plot result", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2023-02-2164", "tray": "review", "candidates": [ { "answer_id": "CRK-DEFL-005", "score": 0.6810380220413208, "sibling_score": 0.6810380220413208, "answer_score": 0.5225793719291687, "sibling_qid": "KOC-2024-03-0991-Q008", "sibling_text": "how to plot crankshaft deflection curve only explain", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Plotting and interpreting the deflection curve", "cross_family": true }, { "answer_id": "CSD-BF036-003", "score": 0.6710764765739441, "sibling_score": 0.6710764765739441, "answer_score": null, "sibling_qid": "MUM-2024-10-0963-Q005", "sibling_text": "crankshaft deflection by 3e how to verify and explain your interpretation explain plotting of graph", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "A 3/E has handed you the deflection readings — how do you verify they were taken correctly?", "cross_family": true }, { "answer_id": "CSD-BF036-004", "score": 0.6597253084182739, "sibling_score": 0.6597253084182739, "answer_score": 0.5670615077018738, "sibling_qid": "MUM-2023-08-1056-Q005", "sibling_text": "crankshaft deflection and how to plot the curve", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "How do you plot the deflection curve — what goes on each axis, what is the datum line, and how do you read it?", "cross_family": true } ] }, { "qid": "MUM-2023-03-0087-Q011", "text": "Functional requirement of ISM", "family": "ISM Code", "subtopic": "SMS / Functional Requirements", "tid": "MUM-2023-03-0087", "tray": "review", "candidates": [ { "answer_id": "ISM-AUD-P02-003", "score": 0.7810109257698059, "sibling_score": 0.7810109257698059, "answer_score": 0.43816132843494415, "sibling_qid": "MUM-2026-09-3991-Q005", "sibling_text": "functional requirements of ism", "sibling_family": "ISM Code", "via": "sibling", 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"cross_family": false } ] }, { "qid": "MUM-2023-03-0088-Q001", "text": "type of ship sailed", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2023-03-0088", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8459994196891785, "sibling_score": 0.8459994196891785, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8450109362602234, "sibling_score": 0.8450109362602234, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7931061387062073, "sibling_score": 0.7931061387062073, 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Why is an OMD fitted on the main engine and not the auxiliary, and can the two be interchanged?", "cross_family": true } ] }, { "qid": "MUM-2023-03-0088-Q006", "text": "intact and damage stability", "family": "SOLAS", "subtopic": "Damage Stability", "tid": "MUM-2023-03-0088", "tray": "review", "candidates": [ { "answer_id": "DS-049-P02-001", "score": 0.8290889859199524, "sibling_score": 0.8290889859199524, "answer_score": 0.4743114739656448, "sibling_qid": "KOC-2022-08-0082-Q009", "sibling_text": "intact and damage stability", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Difference between intact stability (static / dynamic) and damage stability criteria", "cross_family": false }, { "answer_id": "DAM-STAB-P03-001", "score": 0.8290889859199524, "sibling_score": 0.8290889859199524, "answer_score": 0.4935281574726105, "sibling_qid": "KOC-2025-10-0674-Q007", "sibling_text": "intact and damage stability", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Intact, static, dynamic and damage stability: difference and criteria", "cross_family": false }, { "answer_id": "DS-BASIC-P01-001", "score": 0.5219932913780212, "sibling_score": null, "answer_score": 0.5219932913780212, "sibling_qid": "", "sibling_text": "damage stability definition meaning and oral overview", "sibling_family": "", "via": "answer_title", "answer_title": "Damage stability: definition, meaning and oral overview", "cross_family": false } ] }, { "qid": "MUM-2023-03-0090-Q001", "text": "Types of ships sailed, Types under IBC code of in details.", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2023-03-0090", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.7047414779663086, "sibling_score": 0.7047414779663086, "answer_score": null, "sibling_qid": "CHE-2026-09-3938-Q001", "sibling_text": "types of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.6974344849586487, "sibling_score": 0.6974344849586487, "answer_score": 0.5014965832233429, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "IGC-IGF-002", "score": 0.6889132857322693, "sibling_score": 0.6889132857322693, "answer_score": null, "sibling_qid": "KOL-2022-07-0657-Q001", "sibling_text": "type of ship sailed about igf code", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "IGF Code — scope, ships and fuels it applies to", "cross_family": true } ] }, { "qid": "MUM-2023-03-0090-Q009", "text": "Clear Grounds.", "family": "Surveys - Statutory", "subtopic": "Detention / Clear Ground", "tid": "MUM-2023-03-0090", "tray": "review", "candidates": [ { "answer_id": "DCG-001", "score": 0.7191140651702881, "sibling_score": 0.7191140651702881, "answer_score": 0.24761302918195724, "sibling_qid": "KOC-2026-08-2114-Q003", "sibling_text": "clear grounds", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is meant by \"clear grounds\", under PSC and under SOLAS? 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0.5205349802970886, "sibling_qid": "", "sibling_text": "elements chapters structure of the ism code part a implementation the 12 elements 1 general 1 1 definitions 1 2 objectives 1 3 application 1 4 functional requirements for an sms", "sibling_family": "", "via": "answer_title", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": false } ] }, { "qid": "MUM-2023-03-0091-Q002", "text": "Type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2023-03-0091", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8367661833763123, "sibling_score": 0.8367661833763123, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8020406365394592, "sibling_score": 0.8020406365394592, "answer_score": 0.5474629700183868, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8004519939422607, "sibling_score": 0.8004519939422607, "answer_score": 0.5221094131469727, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2023-03-0091-Q003", "text": "Torsion box", "family": "SOLAS", "subtopic": "Double Bottom / Torsion Box", "tid": "MUM-2023-03-0091", "tray": "review", "candidates": [ { "answer_id": "DB-TORBOX-B-003", "score": 0.7160940766334534, "sibling_score": 0.7160940766334534, "answer_score": 0.47486518025398256, "sibling_qid": "MUM-2026-05-3222-Q002", "sibling_text": "torsion box", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "What is a torsion box — definition and construction", "cross_family": false }, { "answer_id": "DBTB-A-004", "score": 0.6867043972015381, "sibling_score": 0.6867043972015381, "answer_score": 0.45147611796855924, "sibling_qid": "CHE-2026-05-0590-Q002", "sibling_text": "draw torsion box", "sibling_family": "Ship Construction", "via": "sibling", "answer_title": "Torsion box: construction and arrangement in a container ship", "cross_family": true }, { "answer_id": "DB-TORBOX-B-001", "score": 0.4314260125160217, "sibling_score": null, "answer_score": 0.4314260125160217, "sibling_qid": "", "sibling_text": "torsion box purpose location and why container ships closed box section cell at each deck side strength deck on top sheer strake side shell outboard inner longitudinal bulkhead inboard second deck platform closing it below purpose restore the torsional rigidity lost to the large deck openings resist hull twisting and warping in oblique quartering seas", "sibling_family": "", "via": "answer_title", "answer_title": "Torsion box — purpose, location, and why container ships", "cross_family": false } ] }, { "qid": "MUM-2023-03-0091-Q007", "text": "CSR, what is it? Which regulation covers it and which convention?", "family": "Surveys - Statutory", "subtopic": "CSR / Continuous Synopsis Record", "tid": "MUM-2023-03-0091", "tray": "new", "candidates": [ { "answer_id": "CSR-585-001", "score": 0.6092355847358704, "sibling_score": 0.6092355847358704, "answer_score": 0.38820895552635193, "sibling_qid": "KOL-2026-02-1182-Q003", "sibling_text": "csr regulation", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the Continuous Synopsis Record (CSR)? Explain its purpose and requirements.", "cross_family": false }, { "answer_id": "CERT-LIST-P01-001", "score": 0.5555621981620789, "sibling_score": 0.5555621981620789, "answer_score": null, "sibling_qid": "KOL-2026-01-1159-Q006", "sibling_text": "csr and its forms", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "List the statutory certificates carried onboard a ship.", "cross_family": false }, { "answer_id": "SVY-SCOPE-004", "score": 0.4654710292816162, "sibling_score": 0.4654710292816162, "answer_score": null, "sibling_qid": "MUM-2023-08-2741-Q014", "sibling_text": "csm requirement", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What are the CSM requirements, and how is CSM carried out for a machine?", "cross_family": false } ] }, { "qid": "MUM-2023-03-0092-Q004", "text": "ism ? Who is responsible for ism", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "MUM-2023-03-0092", "tray": "review", "candidates": [ { "answer_id": "ISM-DPA-002", "score": 0.7455577254295349, "sibling_score": 0.7455577254295349, "answer_score": null, "sibling_qid": "KOC-2023-03-0172-Q004", "sibling_text": "ism who is responsible for ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "DPA basis : which convention, which code, and who is responsible for ISM", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.5249736905097961, "sibling_score": 0.5249736905097961, "answer_score": null, "sibling_qid": "MUM-2025-09-0457-Q008", "sibling_text": "objectives of ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "ISM-AUD-P02-006", "score": 0.5186715722084045, "sibling_score": 0.5186715722084045, "answer_score": null, "sibling_qid": "MUM-2026-06-3542-Q002", "sibling_text": "management review of ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Master's review, company / management review and change management", "cross_family": false } ] }, { "qid": "MUM-2023-03-0093-Q002", "text": "Introduction, status of written exam, orals remaining..", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2023-03-0093", "tray": "review", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.6872544884681702, "sibling_score": 0.6872544884681702, "answer_score": null, "sibling_qid": "MUM-2026-05-3187-Q001", "sibling_text": "status of other orals and written", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": false }, { "answer_id": "DUS-P1-02", "score": 0.5266649723052979, "sibling_score": 0.5266649723052979, "answer_score": null, "sibling_qid": "KOL-2025-08-3851-Q006", "sibling_text": "drydock plans rudder checks cross questions what about other written oral exams status told waiting for naval written result to come all other paper cleared", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Plans, drawings and special tools kept ready for drydock — engine-department view", "cross_family": true }, { "answer_id": "EXHV-P01-001", "score": 0.46439939737319946, "sibling_score": 0.46439939737319946, "answer_score": null, "sibling_qid": "CHE-2026-01-0101-Q001", "sibling_text": "types of ship done and exam status", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": true } ] }, { "qid": "MUM-2023-03-0093-Q003", "text": "Draw curve of statical stability for negative gm and explain.", "family": "Stability Curves (GZ / KN)", "subtopic": "Stability Curves (GZ / KN)", "tid": "MUM-2023-03-0093", "tray": "review", "candidates": [ { "answer_id": "STAB-GZ-P04-003", "score": 0.7788668274879456, "sibling_score": 0.7788668274879456, "answer_score": 0.45229505002498627, "sibling_qid": "KOC-2025-11-0711-Q001", "sibling_text": "draw stability curve with negative gm", "sibling_family": "", "via": "sibling", "answer_title": "Negative GM and the angle of loll", "cross_family": false }, { "answer_id": "LOLL-P02-004", "score": 0.7210080623626709, "sibling_score": 0.7210080623626709, "answer_score": 0.5339342772960662, "sibling_qid": "KOC-2023-08-0212-Q003", "sibling_text": "stability curve with negative gm draw explain", "sibling_family": "", "via": "sibling", "answer_title": "3. Angle of loll on the GZ curve — the GM condition", "cross_family": false }, { "answer_id": "STAB-GZ-P01-001", "score": 0.6602998375892639, "sibling_score": 0.6602998375892639, "answer_score": 0.5129575282335281, "sibling_qid": "KOC-2026-09-2189-Q003", "sibling_text": "stability curve when gz ve", "sibling_family": "Stability Curves (GZ / KN)", "via": "sibling", "answer_title": "Draw and explain the statical stability (GZ) curve", "cross_family": false } ] }, { "qid": "MUM-2023-03-0095-Q003", "text": "Which marpol annex are applicable to your ship.", "family": "MARPOL - General & Compliance", "subtopic": "MARPOL Annexes Overview", "tid": "MUM-2023-03-0095", "tray": "review", "candidates": [ { "answer_id": "MARPOL-OV-001", "score": 0.8127333521842957, "sibling_score": 0.8127333521842957, "answer_score": 0.6578979134559632, "sibling_qid": "MUM-2025-11-0556-Q012", "sibling_text": "which marpol annexes ur ship following", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Which MARPOL annexes apply to your ship?", "cross_family": false }, { "answer_id": "MARPOL-OV-003", "score": 0.8113932013511658, "sibling_score": 0.8113932013511658, "answer_score": null, "sibling_qid": "KOC-2026-03-0862-Q007", "sibling_text": "marpol annex", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "General overview of MARPOL and all annexes", "cross_family": false }, { "answer_id": "MARPOL-OV-002", "score": 0.8113932013511658, "sibling_score": 0.8113932013511658, "answer_score": null, "sibling_qid": "KOC-2026-03-0853-Q007", "sibling_text": "marpol annex", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "The six annexes and what each covers", "cross_family": false } ] }, { "qid": "MUM-2023-03-0096-Q001", "text": "Safeties on oxygen acetylene bottle and line", "family": "Workshop & Welding", "subtopic": "Welding / NDT / Heat Treatment", "tid": "MUM-2023-03-0096", "tray": "review", "candidates": [ { "answer_id": "WELD-A-003", "score": 0.7907002568244934, "sibling_score": 0.7907002568244934, "answer_score": 0.592007777094841, "sibling_qid": "MUM-2024-09-0201-Q002", "sibling_text": "oxygen and acetalyne bottles safety", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Oxy-acetylene cylinders — storage, handling and safety", "cross_family": false }, { "answer_id": "WELD-A-001", "score": 0.7165071368217468, "sibling_score": 0.7165071368217468, "answer_score": 0.47451276183128355, "sibling_qid": "MUM-2025-05-0250-Q007", "sibling_text": "oxygen acetylene line safety what is flashback arrestor and function of it", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Flashback arrestor — location, purpose, working and maintenance", "cross_family": false }, { "answer_id": "PPT-003", "score": 0.6780399680137634, "sibling_score": 0.6780399680137634, "answer_score": 0.568802523612976, "sibling_qid": "CHE-2025-12-0224-Q006", "sibling_text": "acetylene bottle pipeline pressure testing procedure", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Acetylene bottle pipeline pressure test procedure", "cross_family": false } ] }, { "qid": "MUM-2023-03-0096-Q003", "text": "Risk assessment", "family": "Risk & Safety Management", "subtopic": "Enclosed Space Entry", "tid": "MUM-2023-03-0096", "tray": "review", "candidates": [ { "answer_id": "RA-MGMT-B-001", "score": 0.7977879643440247, "sibling_score": 0.7977879643440247, "answer_score": null, "sibling_qid": "KOL-2022-09-3563-Q003", "sibling_text": "risc assessment", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "How is a shipboard risk assessment prepared and carried out?", "cross_family": false }, { "answer_id": "RA-MGMT-A-001", "score": 0.7891297936439514, "sibling_score": 0.7891297936439514, "answer_score": 0.566388589143753, "sibling_qid": "MUM-2026-08-3829-Q002", "sibling_text": "risk assessment", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "What is risk, what is hazard, and what is risk assessment?", "cross_family": false }, { "answer_id": "LVC-577-001", "score": 0.5820225715637207, "sibling_score": null, "answer_score": 0.5820225715637207, "sibling_qid": "", "sibling_text": "define likelihood and consequence in risk assessment risk has two elements likelihood and consequence the matrix rating commonly combines them by multiplying where the sms uses that method likelihood the chance probability the harm occurs how likely how often", "sibling_family": "", "via": "answer_title", "answer_title": "Define likelihood and consequence in risk assessment", "cross_family": false } ] }, { "qid": "MUM-2023-03-0096-Q006", "text": "Safety training manual", "family": "SOLAS - LSA & Lifeboats", "subtopic": "LSA Code", "tid": "MUM-2023-03-0096", "tray": "review", "candidates": [ { "answer_id": "FIRE-P05-01", "score": 0.8487284779548645, "sibling_score": 0.8487284779548645, "answer_score": 0.5235897123813629, "sibling_qid": "KOL-2026-07-4278-Q001", "sibling_text": "safety training manual", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Fire-safety training manual — SOLAS II-2 Reg 15 contents and location", "cross_family": false }, { "answer_id": "IMO-5PIL-005", "score": 0.6336053013801575, "sibling_score": 0.6336053013801575, "answer_score": null, "sibling_qid": "KOL-2017-02-0061-Q003", "sibling_text": "safety conventions", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "IMO conventions for ship safety", "cross_family": true }, { "answer_id": "JOIN-HDVR-003", "score": 0.48476628363132473, "sibling_score": null, "answer_score": 0.48476628363132473, "sibling_qid": "", "sibling_text": "familiarising and training a newly joined junior engineer as second engineer safety familiarisation before any duty stcw reg i 14 a vi 1 ism 6 3 escape routes muster list emergency duties lsa ffa location and use engine room hazards ppe ship and job specific familiarisation machinery in his charge ums alarm and dead man system main and auxiliary start stop bunkering pms permit to work and risk ass", "sibling_family": "", "via": "answer_title", "answer_title": "Familiarising and training a newly joined junior engineer as Second Engineer", "cross_family": false } ] }, { "qid": "MUM-2023-03-0097-Q005", "text": "How to calibrate ODME ?", "family": "MARPOL - Annex I (Oil)", "subtopic": "OCM / ODME / ODMCS", "tid": "MUM-2023-03-0097", "tray": "new", "candidates": [ { "answer_id": "OMD-003", "score": 0.6480553150177002, "sibling_score": 0.6480553150177002, "answer_score": 0.3908036082983017, "sibling_qid": "KOL-2026-03-3937-Q001", "sibling_text": "omd calibration", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Explain the OMD working principle, its types and their differences, the electrical side, and zero setting and calibration.", "cross_family": true }, { "answer_id": "OILPOL-OWS-001", "score": 0.5907976031303406, "sibling_score": 0.5907976031303406, "answer_score": 0.4523729205131531, "sibling_qid": "CHE-2026-05-0543-Q016", "sibling_text": "odmcs calibration shore validity", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "ODMCS / ODME shore calibration — how long is it valid?", "cross_family": false }, { "answer_id": "ODC-014", "score": 0.5906324982643127, "sibling_score": 0.5906324982643127, "answer_score": null, "sibling_qid": "CHE-2025-08-0019-Q016", "sibling_text": "odmcs calibration shore validity", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "ODMCS — what it records, the log, and calibration", "cross_family": false } ] }, { "qid": "MUM-2023-03-0098-Q001", "text": "Type of ship (Gas carrier)", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2023-03-0098", "tray": "review", "candidates": [ { "answer_id": "LPG-LNG-009", "score": 0.816087543964386, "sibling_score": 0.816087543964386, "answer_score": 0.5714566051959992, "sibling_qid": "CHE-2026-04-0164-Q001", "sibling_text": "type of ship sailed lpg carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Gas-carrier fundamentals and ship-specific traps", "cross_family": false }, { "answer_id": "IGC-GAS-004", "score": 0.7746543884277344, "sibling_score": 0.7746543884277344, "answer_score": null, "sibling_qid": "KOL-2025-08-1014-Q002", "sibling_text": "type of ship sailed lpg classification of gas carriers of as per igc code", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Ship-type classification under the IGC Code — 1G / 2G / 2PG / 3G", "cross_family": true }, { "answer_id": "COT-01", "score": 0.7298569083213806, "sibling_score": 0.7298569083213806, "answer_score": null, "sibling_qid": "KOC-2026-04-0892-Q003", "sibling_text": "type of ship sailed tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Oil-tanker types, definitions and cargo capability", "cross_family": false } ] }, { "qid": "MUM-2023-03-0098-Q006", "text": "N2 bottles how much,stored in which form, capacity?", "family": "Cargo Ops - Tankers", "subtopic": "IG System", "tid": "MUM-2023-03-0098", "tray": "new", "candidates": [ { "answer_id": "LPG-LNG-006", "score": 0.6499369144439697, "sibling_score": 0.6499369144439697, "answer_score": null, "sibling_qid": "MUM-2026-03-0840-Q006", "sibling_text": "how is n2 stored in bottle liquid or gas form", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Nitrogen generator, dry IG, and padding on gas carriers", "cross_family": true }, { "answer_id": "DCP-FIXED-A-003", "score": 0.6294224262237549, "sibling_score": 0.6294224262237549, "answer_score": null, "sibling_qid": "KOC-2025-01-0511-Q003", "sibling_text": "nitrogen bottle pressure and capacity", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Capacities, pressures, relief settings, regulations and calculation", "cross_family": true }, { "answer_id": "FIXED-FF-B-001", "score": 0.6152362823486328, "sibling_score": 0.6152362823486328, "answer_score": null, "sibling_qid": "MUM-2025-11-0566-Q008", "sibling_text": "draw fixed system n2 bottle capacity and pressure", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fixed fire-fighting systems carried onboard and the risks they protect", "cross_family": true } ] }, { "qid": "MUM-2023-03-0098-Q007", "text": "Gas detector where all are present onboard?", "family": "Gas Detection & Instruments", "subtopic": "Explosimeter / Gas Detector", "tid": "MUM-2023-03-0098", "tray": "new", "candidates": [ { "answer_id": "PR-SAFE-A-002", "score": 0.6332409381866455, "sibling_score": 0.6332409381866455, "answer_score": 0.48585469722747804, "sibling_qid": "KOC-2024-10-0431-Q007", "sibling_text": "fixed gas detection system in pump room which all gases monitored", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Pump-room fixed gas detection and atmosphere monitoring", "cross_family": true }, { "answer_id": "GAS-DET-001", "score": 0.6272217631340027, "sibling_score": 0.6272217631340027, "answer_score": 0.5143805265426635, "sibling_qid": "KOC-2024-06-0352-Q013", "sibling_text": "fixed gas detection system", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Fixed gas detection system on a gas carrier (cargo area / \"pump room\")", "cross_family": true }, { "answer_id": "GAS-DET-003", "score": 0.6212989091873169, "sibling_score": 0.6212989091873169, "answer_score": null, "sibling_qid": "CHE-2026-09-3934-Q005", "sibling_text": "multi gas detector function what are the gases", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Gas measuring instruments and what each one reads", "cross_family": true } ] }, { "qid": "MUM-2023-03-0098-Q008", "text": "BLEVE, what arrangement onboard to prevent ?", "family": "Cargo Ops - Gas Carriers", "subtopic": "BLEVE / Boil-Off", "tid": "MUM-2023-03-0098", "tray": "new", "candidates": [ { "answer_id": "MR-DS-PV-B-003", "score": 0.5071825981140137, "sibling_score": 0.5071825981140137, "answer_score": null, "sibling_qid": "MUM-2026-07-3676-Q003", "sibling_text": "safeties onboard", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "3. Alarms, trips, valves, and abnormal conditions of the deck seal", "cross_family": true }, { "answer_id": "TNK-SAFE-BF26-003", "score": 0.506316602230072, "sibling_score": 0.506316602230072, "answer_score": null, "sibling_qid": "MUM-2026-04-0883-Q002", "sibling_text": "safeties onboard", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "What safeties, including electrical safeties and Ex ratings, are provided on the deck of a tanker?", "cross_family": true }, { "answer_id": "FSE-P02-002", "score": 0.5058255195617676, "sibling_score": 0.5058255195617676, "answer_score": null, "sibling_qid": "MUM-2022-07-0014-Q009", "sibling_text": "what arrangements in tanker to prevent fse", "sibling_family": "", "via": "sibling", "answer_title": "Constructional arrangements in tanks and tankers that reduce FSE", "cross_family": false } ] }, { "qid": "MUM-2023-03-0098-Q011", "text": "Type of cargo tank ? Insulation material ? GAS TANKER", "family": "Cargo Ops - Gas Carriers", "subtopic": "Cargo Tank Construction", "tid": "MUM-2023-03-0098", "tray": "review", "candidates": [ { "answer_id": "GC-TANK-004", "score": 0.8329871296882629, "sibling_score": 0.8329871296882629, "answer_score": 0.6424771249294281, "sibling_qid": "MUM-2026-09-3894-Q011", "sibling_text": "cargo tank insulation material", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Gas-carrier cargo tank construction: materials, insulation, fixing and tank safeties", "cross_family": false }, { "answer_id": "GC-TANK-005", "score": 0.8007159233093262, "sibling_score": 0.8007159233093262, "answer_score": 0.5648945093154907, "sibling_qid": "KOC-2026-08-2155-Q013", "sibling_text": "lng tank insulation material", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "LNG Moss-type cargo tank: construction and advantages", "cross_family": false }, { "answer_id": "CABLE-INS-E-002", "score": 0.7589948773384094, "sibling_score": 0.7589948773384094, "answer_score": null, "sibling_qid": "KOL-2017-10-2155-Q001", "sibling_text": "type of insulation in tanker", "sibling_family": "", "via": "sibling", "answer_title": "Cable for hazardous areas, tanker pump rooms and deck", "cross_family": false } ] }, { "qid": "MUM-2023-03-0949-Q004", "text": "Generator not stopping on stop command, what are your actions", "family": "Electrical - Generator & Alternator", "subtopic": "Emergency DG", "tid": "MUM-2023-03-0949", "tray": "review", "candidates": [ { "answer_id": "ALT-MTN-B-001", "score": 0.6655572652816772, "sibling_score": 0.6655572652816772, "answer_score": null, "sibling_qid": "MUM-2023-05-0950-Q007", "sibling_text": "suppose your generator is not stopping from control room after stopping your action", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Routine onboard alternator maintenance checks", "cross_family": false }, { "answer_id": "AEDEC-291-003", "score": 0.5080116987228394, "sibling_score": 0.5080116987228394, "answer_score": null, "sibling_qid": "MUM-2026-06-3491-Q006", "sibling_text": "generator tripped checks before starting", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "3. Pre-start checks after decarb / recommissioning", "cross_family": true }, { "answer_id": "ALT-GEN-P03-001", "score": 0.47850847244262695, "sibling_score": 0.47850847244262695, "answer_score": null, "sibling_qid": "KOC-2023-12-1309-Q001", "sibling_text": "how generator is started", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Alternator/generator working principle and onboard electricity generation", "cross_family": false } ] }, { "qid": "MUM-2023-03-1042-Q001", "text": "Bore cooling", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "MUM-2023-03-1042", "tray": "new", "candidates": [ { "answer_id": "PC-TP-003", "score": 0.6038498878479004, "sibling_score": 0.6038498878479004, "answer_score": 0.44428492784500123, "sibling_qid": "KOC-2023-07-0925-Q009", "sibling_text": "how piston crown cooling taking place lube circuit from telescopic pipe where it return back", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston crown cooling oil circuit and where the oil returns", "cross_family": false }, { "answer_id": "CYL-LINER-P01-001", "score": 0.599776566028595, "sibling_score": 0.599776566028595, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001S4", "sibling_text": "liner cooling liner calibration", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Carrying out main-engine liner calibration (gauging)", "cross_family": false }, { "answer_id": "PIST-CSI-A-002", "score": 0.5846431255340576, "sibling_score": 0.5846431255340576, "answer_score": null, "sibling_qid": "CHE-2025-08-0190-Q002", "sibling_text": "type of piston type of cooling", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "2-stroke piston: parts, cooling arrangement and operating stresses", "cross_family": false } ] }, { "qid": "MUM-2023-03-1042-Q005", "text": "How to maintain temp in AC.", "family": "Refrigeration & AC", "subtopic": "Comfort Zone", "tid": "MUM-2023-03-1042", "tray": "review", "candidates": [ { "answer_id": "CFZ-330-002", "score": 0.6527622938156128, "sibling_score": 0.6527622938156128, "answer_score": null, "sibling_qid": "KOC-2021-05-2022-Q014", "sibling_text": "how comfort condition is maintained in ac", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "How is the comfort zone maintained in a shipboard air-conditioning system?", "cross_family": false }, { "answer_id": "RAC-HPLP-389-003", "score": 0.6205811500549316, "sibling_score": 0.6205811500549316, "answer_score": null, "sibling_qid": "CHE-2026-02-0483-Q005", "sibling_text": "ac high temperature", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Trips and cutouts on a refrigeration compressor (HP, LP, LO)", "cross_family": false }, { "answer_id": "REEF-PREP-001", "score": 0.6014555096626282, "sibling_score": 0.6014555096626282, "answer_score": null, "sibling_qid": "MUM-2025-12-1233-Q011", "sibling_text": "ref room temp how maintained", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Provision (domestic) refrigerated rooms — arrangement and temperature control", "cross_family": false } ] }, { "qid": "MUM-2023-03-1042-Q008", "text": "Difference between water tube and smoke tube.", "family": "Boilers - Construction & Components", "subtopic": "Steam / Superheated Steam", "tid": "MUM-2023-03-1042", "tray": "review", "candidates": [ { "answer_id": "BLR-TUBE-P01-002", "score": 0.6774846911430359, "sibling_score": 0.6774846911430359, "answer_score": null, "sibling_qid": "KOL-2020-09-1544-Q003", "sibling_text": "which boiler water tube difference between water tube and smoke tube", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "03. Types, functions and arrangement of boiler tubes", "cross_family": false }, { "answer_id": "BLR-TUBE-P01-001", "score": 0.5908916592597961, "sibling_score": 0.5908916592597961, "answer_score": null, "sibling_qid": "KOC-2025-07-1044-Q003", "sibling_text": "boiler how smoke tube is connected to water tube", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "01. Attaching, fitting and supporting boiler tubes", "cross_family": false }, { "answer_id": "BLR-TUBE-P02-002", "score": 0.5119940042495728, "sibling_score": 0.5119940042495728, "answer_score": null, "sibling_qid": "KOL-2019-06-3246-Q005", "sibling_text": "tube plugging process in smoke tube boiler and material of plug", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Plugging a leaking boiler tube (temporary arrest)", "cross_family": false } ] }, { "qid": "MUM-2023-03-1043-Q002", "text": "Angle encoder", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Angle Encoder", "tid": "MUM-2023-03-1043", "tray": "review", "candidates": [ { "answer_id": "ANG-ENC-003", "score": 0.8342595100402832, "sibling_score": 0.8342595100402832, "answer_score": 0.48474465012550355, "sibling_qid": "KOC-2022-07-0079-Q023", "sibling_text": "angle encoder working", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Working principle: sensing crank angle, speed and direction", "cross_family": false }, { "answer_id": "ANG-ENC-001", "score": 0.8279860019683838, "sibling_score": 0.8279860019683838, "answer_score": 0.49977218508720395, "sibling_qid": "MUM-2023-11-1066-Q008", "sibling_text": "angle encoder function", "sibling_family": "Electrical - 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How many gears ?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Camshaft Drive / Gear Arrangement", "tid": "MUM-2023-03-1045", "tray": "new", "candidates": [ { "answer_id": "AE-CAMTIM-001", "score": 0.6379687190055847, "sibling_score": 0.6379687190055847, "answer_score": 0.54632009267807, "sibling_qid": "MUM-2026-09-3971-Q012", "sibling_text": "gear ratio speed ratio for crankshaft camshaft", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Crankshaft-to-camshaft speed and gear ratio (four-stroke AE, and versus the main engine)", "cross_family": false }, { "answer_id": "CHAIN-TENS-B-003", "score": 0.5951860547065735, "sibling_score": 0.5951860547065735, "answer_score": 0.44380438029766084, "sibling_qid": "KOL-2021-10-1632-Q003", "sibling_text": "3 how from crankshaft the chain is transmitted to camshaft", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Chain-drive arrangement — sprockets, idlers, links and chain case", "cross_family": true }, { "answer_id": "CHAIN-TENS-A-004", "score": 0.5623916387557983, "sibling_score": 0.5623916387557983, "answer_score": null, "sibling_qid": "KOL-2018-01-3112-Q003", "sibling_text": "checks in cam shaft chain drive", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Chain-Case / Chain-Drive Inspection", "cross_family": true } ] }, { "qid": "MUM-2023-03-1045-Q007", "text": "How Main and crankpin bearing prevented from rotating.", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "", "tid": "MUM-2023-03-1045", "tray": "new", "candidates": [ { "answer_id": "BEB-A-002", "score": 0.6323300004005432, "sibling_score": 0.6323300004005432, "answer_score": null, "sibling_qid": "MUM-2024-03-1079-Q014", "sibling_text": "crank pin bearing how lubricated", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How the bottom end (crankpin) bearing is lubricated", "cross_family": false }, { "answer_id": "BEB-C-001", "score": 0.6276620030403137, "sibling_score": 0.6276620030403137, "answer_score": null, "sibling_qid": "KOL-2016-08-1234-Q008", "sibling_text": "one of crankpin bearing in main engine is flatened with grey marks on it what are the reasons nd preventive measures", "sibling_family": "2-Stroke - 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Operations & Firing", "via": "sibling", "answer_title": "Draw and explain the steam-assisted pressure jet burner — its advantages, disadvantages and nozzle material.", "cross_family": false }, { "answer_id": "BLR-CAP-BOILER-CAPACITY-RATING-005", "score": 0.72206711769104, "sibling_score": 0.72206711769104, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q009", "sibling_text": "type of boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "What are boiler pressure ratings or maximum working pressure?", "cross_family": true }, { "answer_id": "BLR-DRUM-002", "score": 0.69417804479599, "sibling_score": 0.69417804479599, "answer_score": null, "sibling_qid": "MUM-2026-06-3660-Q005", "sibling_text": "boiler type and boiler construction", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Steam-drum construction, material and plate manufacture, and construction-stage tests", "cross_family": true } ] }, { "qid": "MUM-2023-03-1046-Q003", "text": "How many safety valves", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2023-03-1046", "tray": "review", "candidates": [ { "answer_id": "ACRV-005", "score": 0.7206991314888, "sibling_score": 0.7206991314888, "answer_score": null, "sibling_qid": "MUM-2026-03-2942-Q020", "sibling_text": "19 type of safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.6194111704826355, "sibling_score": 0.6194111704826355, "answer_score": null, "sibling_qid": "MUM-2026-03-2589-Q003", "sibling_text": "checks on safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.607429027557373, "sibling_score": 0.607429027557373, "answer_score": null, "sibling_qid": "MUM-2026-09-3885-Q006", "sibling_text": "all types of safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "MUM-2023-03-1046-Q004", "text": "Which setting highest and lowest", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2023-03-1046", "tray": "new", "candidates": [ { "answer_id": "OMD-003", "score": 0.5270611047744751, "sibling_score": 0.5270611047744751, "answer_score": null, "sibling_qid": "KOL-2021-10-1908-Q006", "sibling_text": "zero settings", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Explain the OMD working principle, its types and their differences, the electrical side, and zero setting and calibration.", "cross_family": true }, { "answer_id": "IGAT-583-003", "score": 0.48362788558006287, "sibling_score": 0.48362788558006287, "answer_score": null, "sibling_qid": "KOC-2023-01-0976-Q003", "sibling_text": "all i g alarms high pr set point and low pr set point", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What are the set values for the IG system alarms and trips — IG line high, low and low-low pressure, oxygen content, PV valve and breaker pressures?", "cross_family": true }, { "answer_id": "DROOP-001", "score": 0.4816250503063202, "sibling_score": 0.4816250503063202, "answer_score": null, "sibling_qid": "KOL-2026-09-4299-Q005", "sibling_text": "droop setting", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Governor / speed droop — what, why, setting and formula", "cross_family": true } ] }, { "qid": "MUM-2023-03-1046-Q005", "text": "Why economizer safety valve highest.", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2023-03-1046", "tray": "new", "candidates": [ { "answer_id": "ECON-EGB-004", "score": 0.6138477921485901, "sibling_score": 0.6138477921485901, "answer_score": 0.3927381351590156, "sibling_qid": "KOL-2025-10-3868-Q005", "sibling_text": "why economiser safety valve has highier setting than auxiliary boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Safety-valve setting after overhaul & why set higher than the boiler", "cross_family": true }, { "answer_id": "BWTEST-A-001", "score": 0.5682966113090515, "sibling_score": 0.5682966113090515, "answer_score": null, "sibling_qid": "KOC-2026-05-2126-Q006", "sibling_text": "egb safety valve setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.5639936327934265, "sibling_score": 0.5639936327934265, "answer_score": null, "sibling_qid": "KOL-2026-02-3913-Q004", "sibling_text": "improved high lift safety valve pressure setting 3 above designated set pressure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "MUM-2023-03-1046-Q007", "text": "Main turbine type.", "family": "Boilers - Construction & Components", "subtopic": "Exhaust Gas Boiler", "tid": "MUM-2023-03-1046", "tray": "review", "candidates": [ { "answer_id": "COPT-BF043-003", "score": 0.6903353929519653, "sibling_score": 0.6903353929519653, "answer_score": null, "sibling_qid": "MUM-2026-05-3327-Q007", "sibling_text": "copt turbine type", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "3. Starting and running a COPT; bringing No.2 on with No.1 running", "cross_family": true }, { "answer_id": "TC-CONST-004", "score": 0.6438482999801636, "sibling_score": 0.6438482999801636, "answer_score": null, "sibling_qid": "MUM-2026-03-2937-Q003", "sibling_text": "type of vanes in turbine", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbine-side components: nozzle rings, vanes and blade fitting", "cross_family": true }, { "answer_id": "BLR-CAP-BOILER-CAPACITY-RATING-006", "score": 0.6296584010124207, "sibling_score": 0.6296584010124207, "answer_score": null, "sibling_qid": "MUM-2022-08-0942-Q002", "sibling_text": "boiler specs complete turbine specs", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "State the boiler specifications relevant to rating/capacity.", "cross_family": false } ] }, { "qid": "MUM-2023-03-1046-Q008", "text": "How many stages in each turbine .", "family": "Boilers - Construction & Components", "subtopic": "Exhaust Gas Boiler", "tid": "MUM-2023-03-1046", "tray": "new", "candidates": [ { "answer_id": "COPT-BF043-003", "score": 0.5660024881362915, "sibling_score": 0.5660024881362915, "answer_score": null, "sibling_qid": "MUM-2026-05-3310-Q002", "sibling_text": "copt turbine type and stages", "sibling_family": "Steam & Turbine Plant", "via": "sibling", "answer_title": "3. Starting and running a COPT; bringing No.2 on with No.1 running", "cross_family": true }, { "answer_id": "A6-NSEC-005", "score": 0.5226874351501465, "sibling_score": 0.5226874351501465, "answer_score": null, "sibling_qid": "MUM-2026-06-3625-Q002", "sibling_text": "in how many stages its implemented", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "SEEMP — Part I, II & III", "cross_family": true }, { "answer_id": "BLRBURN-012", "score": 0.5084439516067505, "sibling_score": 0.5084439516067505, "answer_score": null, "sibling_qid": "MUM-2026-08-3861-Q005", "sibling_text": "boiler flame how many stages for pressure jet and rotary cup", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Explain the boiler pressure jet burner and the superheater.", "cross_family": true } ] }, { "qid": "MUM-2023-03-1046-Q009", "text": "Reduction gear type.", "family": "Boilers - Construction & Components", "subtopic": "Exhaust Gas Boiler", "tid": "MUM-2023-03-1046", "tray": "new", "candidates": [ { "answer_id": "TG-MOTOR-001", "score": 0.5985013246536255, "sibling_score": 0.5985013246536255, "answer_score": 0.4043811157345772, "sibling_qid": "MUM-2023-09-1402-Q001", "sibling_text": "turning gear motor type", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What type of motor is used for the turning gear, and what type of rotor does it have?", "cross_family": true }, { "answer_id": "MATPROP-A-007", "score": 0.5453778505325317, "sibling_score": 0.5453778505325317, "answer_score": null, "sibling_qid": "KOL-2017-05-1292-Q001", "sibling_text": "transmission gear material", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Materials for ship and engine components", "cross_family": true }, { "answer_id": "TG-MOTOR-003", "score": 0.5373897552490234, "sibling_score": 0.5373897552490234, "answer_score": null, "sibling_qid": "MUM-2026-06-3615-Q004", "sibling_text": "turning gear motor type and startor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What starter is used on the turning gear motor, and why not a star-delta or a soft starter?", "cross_family": true } ] }, { "qid": "MUM-2023-03-1046-Q011", "text": "Lube oil pump how many,attached or seperate?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "LO System Alarms / LO System Troubleshooting / LO Pump Arrangement", "tid": "MUM-2023-03-1046", "tray": "new", "candidates": [ { "answer_id": "LO-CLR-001", "score": 0.5666686296463013, "sibling_score": 0.5666686296463013, "answer_score": null, "sibling_qid": "KOL-2019-03-3221-Q002", "sibling_text": "two ae running in parallel hw will u know lub oil leaking in one ae just in rounds", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you detect a leaking AE / DG lube-oil cooler, and locate the tube?", "cross_family": false }, { "answer_id": "BRLU-581-001", "score": 0.5583831667900085, "sibling_score": 0.5583831667900085, "answer_score": 0.46448170542716977, "sibling_qid": "MUM-2026-06-3491-Q007", "sibling_text": "lub oil flow from lub oil pump to sump main engine", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main engine lubrication path — large 2-stroke crosshead engine", "cross_family": false }, { "answer_id": "CYL-LUB-A-002", "score": 0.5511294007301331, "sibling_score": 0.5511294007301331, "answer_score": null, "sibling_qid": "KOL-2022-10-1926-Q002", "sibling_text": "1 cylinder lub depends on parameters", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Feed-rate control — quantity, timing and load/rpm-dependent dosing", "cross_family": false } ] }, { "qid": "MUM-2023-03-1046-Q012", "text": "Astern turbine safeties", "family": "Boilers - Construction & Components", "subtopic": "Exhaust Gas Boiler", "tid": "MUM-2023-03-1046", "tray": "new", "candidates": [ { "answer_id": "TC-KLM-330-003", "score": 0.5222846269607544, "sibling_score": 0.5222846269607544, "answer_score": null, "sibling_qid": "CHE-2025-12-0464-Q003", "sibling_text": "turbine k value and clearence checks", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Finding the K value during overhaul — procedure, and the reasons for taking it", "cross_family": true }, { "answer_id": "AEOVT-559-001", "score": 0.5188591480255127, "sibling_score": 0.5188591480255127, "answer_score": null, "sibling_qid": "KOC-2026-05-0034-Q007", "sibling_text": "safeties in aux engine explain overspeed tripping how the sensor is activated", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "The auxiliary engine overspeed trip — how the device works", "cross_family": true }, { "answer_id": "BOW-THR-002", "score": 0.5083983540534973, "sibling_score": 0.5083983540534973, "answer_score": null, "sibling_qid": "KOL-2025-10-2019-Q006", "sibling_text": "bow thruster details safeties any interlock", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Starting a bow thruster — validation, checks, safeties and interlocks", "cross_family": true } ] }, { "qid": "MUM-2023-03-1046-Q016", "text": " Blowdown valves arrangement ? why 2 on boiler and 2 on ship side?", "family": "Boilers - Construction & Components", "subtopic": "Scum / Blow Down", "tid": "MUM-2023-03-1046", "tray": "new", "candidates": [ { "answer_id": "BLR-CAP-BOILER-CAPACITY-RATING-003", "score": 0.5979436039924622, "sibling_score": 0.5979436039924622, "answer_score": null, "sibling_qid": "KOL-2022-08-1924-Q001", "sibling_text": "and 6 which ship sailed what engines type of boilers sailed on how do you rate a boiler if 2 boilers present how to parallel 2 boilers what is chokefast its not choking process", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "What is the boiler capacity/rating of the boiler on your last ship?", "cross_family": false }, { "answer_id": "SBD-003", "score": 0.5887082815170288, "sibling_score": 0.5887082815170288, "answer_score": 0.5179473698139191, "sibling_qid": "KOL-2019-01-3207-Q005", "sibling_text": "how boiler blowdown valve is fitted on ship side", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "How is the boiler blowdown valve fitted on the ship's side and how are the blowdown valves arranged? What is the blowdown pressure and its significance? The overboard blowdown valve is leaking — what do you do?", "cross_family": true }, { "answer_id": "BLR-DRUM-008", "score": 0.5402700304985046, "sibling_score": 0.5402700304985046, "answer_score": null, "sibling_qid": "KOL-2022-07-1698-Q003", "sibling_text": "how boiler supported to ship structure", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "How a boiler is supported to the ship structure", "cross_family": false } ] }, { "qid": "MUM-2023-03-1379-Q001", "text": "Which type of ship?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2023-03-1379", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.823513925075531, "sibling_score": 0.823513925075531, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8043797612190247, "sibling_score": 0.8043797612190247, "answer_score": 0.5256601959466934, "sibling_qid": "MUM-2026-02-0731-Q002", "sibling_text": "what type of ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7976520657539368, "sibling_score": 0.7976520657539368, "answer_score": 0.5402675241231918, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "MUM-2023-03-1379-Q002", "text": "What is generator output on your ship? How to calculate?", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator / Generator", "tid": "MUM-2023-03-1379", "tray": "new", "candidates": [ { "answer_id": "ALT-GEN-P02-001", "score": 0.577938973903656, "sibling_score": 0.577938973903656, "answer_score": 0.4371291011571884, "sibling_qid": "KOC-2025-10-1580-Q002", "sibling_text": "generator specs in your last vessel", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Alternator/generator specifications, ratings and ship electrical supply details", "cross_family": false }, { "answer_id": "PF-D-001", "score": 0.5760483741760254, "sibling_score": 0.5760483741760254, "answer_score": null, "sibling_qid": "KOC-2025-11-1627-Q005", "sibling_text": "power calculation of a generator if your wattmeter is not working", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "How kW, kVA, kVAR, current and the power triangle relate to power factor", "cross_family": false }, { "answer_id": "PWR-ARA-004", "score": 0.5599880814552307, "sibling_score": 0.5599880814552307, "answer_score": null, "sibling_qid": "KOL-2019-04-2280-Q001", "sibling_text": "what type of generator in ur ship and it s rating rating of alternator give in the name plate in kva or kw and why difference btwn them other ratings of generator", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Why an alternator is rated in kVA, not kW", "cross_family": true } ] }, { "qid": "MUM-2023-03-1379-Q003", "text": "How to synchronise 2 generators? How to adjust frequency?", "family": "Electrical - Generator & Alternator", "subtopic": "Synchronization", "tid": "MUM-2023-03-1379", "tray": "new", "candidates": [ { "answer_id": "SYNCRO-A-001", "score": 0.6435354351997375, "sibling_score": 0.6435354351997375, "answer_score": null, "sibling_qid": "KOL-2017-01-2100-Q003", "sibling_text": "synchronising of generator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Synchroscope — construction, working, purpose & circuit/principle", "cross_family": false }, { "answer_id": "SYNC-B-004", "score": 0.6295315623283386, "sibling_score": 0.6295315623283386, "answer_score": null, "sibling_qid": "KOL-2017-01-2101-Q003", "sibling_text": "synchronising of generator why incoming faster what will happen if slow", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Why the incoming machine is run slightly fast", "cross_family": false }, { "answer_id": "SYNC-D-001", "score": 0.627570390701294, "sibling_score": 0.627570390701294, "answer_score": null, "sibling_qid": "KOL-2025-08-2838-Q002", "sibling_text": "checks to be carried out when two generators are not synchronised", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Closing the breaker out of phase — wrong-synchronizing consequences", "cross_family": false } ] }, { "qid": "MUM-2023-03-1380-Q005", "text": "Alternator safeties", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator Protection", "tid": "MUM-2023-03-1380", "tray": "review", "candidates": [ { "answer_id": "ALT-GEN-P01-001", "score": 0.7865256667137146, "sibling_score": 0.7865256667137146, "answer_score": 0.541239258646965, "sibling_qid": "MUM-2026-05-3046-Q005", "sibling_text": "safeties for alternator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Alternator/generator safeties and protection trips", "cross_family": false }, { "answer_id": "ALT-MAINT-A-001", "score": 0.5208843588829041, "sibling_score": null, "answer_score": 0.5208843588829041, "sibling_qid": "", "sibling_text": "routine maintenance care of a ship s alternator make safe first permit to work isolate rack out and lock off the breaker immobilise the prime mover the set is engine driven a blackout dead bus auto start can crank it prove dead discharge the windings the space heater supply is separate it stays live after the alternator breaker is open isolate it independently before touching the windings", "sibling_family": "", "via": "answer_title", "answer_title": "Routine maintenance & care of a ship’s alternator", "cross_family": false }, { "answer_id": "ALT-MTN-B-001", "score": 0.5139374703168869, "sibling_score": null, "answer_score": 0.5139374703168869, "sibling_qid": "", "sibling_text": "routine onboard alternator maintenance checks clean air path dry low pressure air blow through cooler and filters clear keep winding temperature in band insulation resistance to earth on a megger trended over time investigate a falling trend do not wait for the alarm", "sibling_family": "", "via": "answer_title", "answer_title": "Routine onboard alternator maintenance checks", "cross_family": false } ] }, { "qid": "MUM-2023-03-1381-Q003", "text": "Two generators are running in parallel, when loss of excitation happen in one. What happens?", "family": "Electrical - Generator & Alternator", "subtopic": "Motoring Effect", "tid": "MUM-2023-03-1381", "tray": "review", "candidates": [ { "answer_id": "AVR-EXC-G-003", "score": 0.7882676124572754, "sibling_score": 0.7882676124572754, "answer_score": 0.541735816001892, "sibling_qid": "MUM-2023-03-1380-Q003", "sibling_text": "2 generators one loses excitation what happens", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Loss or reduction of excitation: effect and action", "cross_family": false }, { "answer_id": "SYNC-C-001", "score": 0.738101601600647, "sibling_score": 0.738101601600647, "answer_score": null, "sibling_qid": "CHE-2026-05-0581-Q005", "sibling_text": "two generator running in parallel if one prime mover stops suddenly and asked what will happen after this", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Paralleling generators — procedure, conditions and practical checks", "cross_family": false }, { "answer_id": "LS-IMB-A-001", "score": 0.710625946521759, "sibling_score": 0.710625946521759, "answer_score": null, "sibling_qid": "MUM-2026-07-3748-Q004", "sibling_text": "two generator running parallel sharing equal load one of generator suddenly off load what r the reason", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Two paralleled generators sharing unequal load — cause and correction", "cross_family": false } ] }, { "qid": "MUM-2023-03-2166-Q002", "text": "What is Grease and its purpose and how many types?", "family": "Lube Oil System", "subtopic": "Grease / Dropping Point", "tid": "MUM-2023-03-2166", "tray": "new", "candidates": [ { "answer_id": "PCD-P03-02", "score": 0.4964568614959717, "sibling_score": 0.4964568614959717, "answer_score": 0.3730688452720642, "sibling_qid": "MUM-2026-05-3219-Q012", "sibling_text": "pump greasing", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Greasing a centrifugal pump — correct method and instructing a TME", "cross_family": true }, { "answer_id": "LO-TEST-P01-005", "score": 0.49310821294784546, "sibling_score": 0.49310821294784546, "answer_score": null, "sibling_qid": "KOC-2026-09-2182-Q012", "sibling_text": "gear oil properties", "sibling_family": "Lube Oil System", "via": "sibling", "answer_title": "Lube-oil properties, types and selection by duty", "cross_family": false }, { "answer_id": "HYDRO-LUB-001", "score": 0.4890747368335724, "sibling_score": 0.4890747368335724, "answer_score": 0.3983676850795746, "sibling_qid": "MUM-2026-09-3892-Q005", "sibling_text": "type of lubricator", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "1. Lubrication, tribology & the types of lubrication", "cross_family": true } ] }, { "qid": "MUM-2023-03-2167-Q002", "text": "Ship is going on a long voyage and how will you plan as a 2E", "family": "ISM Code", "subtopic": "Joining Ship Handover", "tid": "MUM-2023-03-2167", "tray": "new", "candidates": [ { "answer_id": "JOIN-HDVR-001", "score": 0.5597025752067566, "sibling_score": 0.5597025752067566, "answer_score": null, "sibling_qid": "MUM-2024-07-0179-Q004", "sibling_text": "join on an vessel as 2nd things to do and check for interim smc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Taking over a ship from new management — confirming the ISM/SMS is in place and being followed", "cross_family": false }, { "answer_id": "ISM-AUDIT-P01-001", "score": 0.5513087511062622, "sibling_score": 0.5513087511062622, "answer_score": null, "sibling_qid": "KOL-2023-12-0798-Q006", "sibling_text": "as 2e what all you prepare for ism survey i think the most important bit that surveyors want to listen during this question is the bit about critical spares because after saying everything when i reached critical spares thats when they looked more interested and started asking x questions what will you do if critical spare missing vessel superintendent says at port that he will supply at next port which a 40 day long voyage i said i will recommend chied engineer to have a word with dpa and take approval from him he nodded and looked satisfied and told me yes because a 40 day long voyage should not be undertaken without critical spares", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Preparing engine room, records and documents for ISM/SMS audit (2/E)", "cross_family": false }, { "answer_id": "ISM-2E-B-002", "score": 0.5315471887588501, "sibling_score": 0.5315471887588501, "answer_score": null, "sibling_qid": "CHE-2025-08-0199-Q001", "sibling_text": "as 2 nd you take over ship", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "B2. Joining or taking over a ship and confirming ISM/SMS is followed", "cross_family": false } ] }, { "qid": "MUM-2023-03-2167-Q005", "text": "While overhauling fuel pump (jerk type) how will you make sure helix matching with spill port( zero marking)", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Pump Overhaul", "tid": "MUM-2023-03-2167", "tray": "review", "candidates": [ { "answer_id": "FP-OVHL-005", "score": 0.6667101979255676, "sibling_score": 0.6667101979255676, "answer_score": 0.5887344807386398, "sibling_qid": "MUM-2023-03-1042-Q009", "sibling_text": "how you will set zero mark on jerk type fuel pump rest questions don t remember will update later got function 6", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel pump zero setting — what it is, why, and how to set it", "cross_family": false }, { "answer_id": "FCAM-LEAD-P04-002", "score": 0.6209028363227844, "sibling_score": 0.6209028363227844, "answer_score": null, "sibling_qid": "MUM-2026-04-2685-Q005", "sibling_text": "how will you fix fuel pump if u don t have markings on flywheel lot of cross questions", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Finding TDC when flywheel markings are missing", "cross_family": false }, { "answer_id": "FCL-P01-001", "score": 0.6205349564552307, "sibling_score": 0.6205349564552307, "answer_score": null, "sibling_qid": "KOL-2026-03-3938-Q002", "sibling_text": "fuel pump lead taking procedure how will you ensure the plunger has come to spill port", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel pump lead and fuel cam lead: meaning, measurement, significance and adjustment", "cross_family": false } ] }, { "qid": "MUM-2023-03-2167-Q006", "text": "DG fuel pump timing check methods", "family": "Electrical - Generator & Alternator", "subtopic": "Emergency DG", "tid": "MUM-2023-03-2167", "tray": "review", "candidates": [ { "answer_id": "FCL-P02-001", "score": 0.6944725513458252, "sibling_score": 0.6944725513458252, "answer_score": 0.5367870628833771, "sibling_qid": "KOC-2022-01-1778-Q003", "sibling_text": "fuel pump timing checks", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel pump / injection timing check, setting, and adjustment", "cross_family": true }, { "answer_id": "FCL-P03-001", "score": 0.6854570508003235, "sibling_score": 0.6854570508003235, "answer_score": 0.5751906394958496, "sibling_qid": "CHE-2026-08-0669-Q008", "sibling_text": "generator fuel pump timing how will u check", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "AE / auxiliary-engine fuel pump timing check and adjustment", "cross_family": true }, { "answer_id": "AEFP-471-004", "score": 0.5013717472553253, "sibling_score": null, "answer_score": 0.5013717472553253, "sibling_qid": "", "sibling_text": "how do you take or check auxiliary engine fuel pump lead lead flywheel degrees btdc at spill port closure the start of injection method prime the pump remove delivery valve and spring refit holder with gooseneck swan neck pipe free flow while ports open", "sibling_family": "", "via": "answer_title", "answer_title": "How do you take or check auxiliary-engine fuel-pump lead?", "cross_family": false } ] }, { "qid": "MUM-2023-03-2167-Q007", "text": "Capacity of boiler", "family": "Boilers - Operations & Firing", "subtopic": "Boiler Operations", "tid": "MUM-2023-03-2167", "tray": "review", "candidates": [ { "answer_id": "BLR-CAP-BOILER-CAPACITY-RATING-003", "score": 0.8067274689674377, "sibling_score": 0.8067274689674377, "answer_score": 0.5496825069189072, "sibling_qid": "MUM-2026-06-3617-Q003", "sibling_text": "boiler burner capacity", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "What is the boiler capacity/rating of the boiler on your last ship?", "cross_family": false }, { "answer_id": "BLR-CAP-BOILER-CAPACITY-RATING-001", "score": 0.7022972702980042, "sibling_score": 0.7022972702980042, "answer_score": 0.5805881738662719, "sibling_qid": "MUM-2025-05-0969-Q007", "sibling_text": "how is the capacity of boilier defined kg hr", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "How is boiler rating or boiler capacity defined onboard?", "cross_family": true }, { "answer_id": "BLR-CAP-BOILER-CAPACITY-RATING-005", "score": 0.6845088005065918, "sibling_score": 0.6845088005065918, "answer_score": null, "sibling_qid": "MUM-2025-12-1227-Q009", "sibling_text": "type of boiler and pressure ratings capacity", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "What are boiler pressure ratings or maximum working pressure?", "cross_family": true } ] }, { "qid": "MUM-2023-03-2167-Q008", "text": "How to make sure no oxygen in boiler water /", "family": "Boilers - Water Treatment & Chemistry", "subtopic": "Cascade Tank / Condenser", "tid": "MUM-2023-03-2167", "tray": "review", "candidates": [ { "answer_id": "BWTEST-C-002", "score": 0.6677025556564331, "sibling_score": 0.6677025556564331, "answer_score": 0.5668463885784149, "sibling_qid": "KOL-2017-08-1319-Q004", "sibling_text": "effects of oxygen present in boiler water how u will remove", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Oxygen, hydrazine & sulphite tests — removing the main corrodent", "cross_family": true }, { "answer_id": "BLR-CHEM-005", "score": 0.6121712923049927, "sibling_score": 0.6121712923049927, "answer_score": 0.4757567137479782, "sibling_qid": "CHE-2025-12-0226-Q007", "sibling_text": "types of corrosion in boiler 8 how to reduce dissolved oxygen content in boiler", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "5. Boiler and condensate corrosion (water chemistry)", "cross_family": true }, { "answer_id": "BLR-CHEM-006", "score": 0.6085668206214905, "sibling_score": 0.6085668206214905, "answer_score": 0.5599225521087646, "sibling_qid": "KOL-2018-07-3162-Q004", "sibling_text": "what chemical treatment in boiler how to remove oxygen from boiler water what excess oxygen will do to boiler water why boiler water test is performed at 25 degree centigrade one more question which i don t remember few other questions which was asked to other aspirants were", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "6. Hydrazine / oxygen-scavenger dosing and safety", "cross_family": true } ] }, { "qid": "MUM-2023-03-2167-Q009", "text": "How will you make sure shrinkage of web and journal are correct", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft Web / Journal / Shrink Fit", "tid": "MUM-2023-03-2167", "tray": "new", "candidates": [ { "answer_id": "CRPIN-CHK-P01-005", "score": 0.4617665708065033, "sibling_score": 0.4617665708065033, "answer_score": null, "sibling_qid": "KOL-2022-08-3562-Q002", "sibling_text": "indication of slippage in journal and web how to rectify", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Journal or crankpin slippage — identifying, investigating, rectifying", "cross_family": false }, { "answer_id": "TBR-TT-P02-001", "score": 0.34778261184692383, "sibling_score": 0.34778261184692383, "answer_score": null, "sibling_qid": "KOC-2025-10-1947-Q005", "sibling_text": "after tightening what all check you will do", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Tie rod tightening / hydraulic tensioning procedure", "cross_family": false }, { "answer_id": "IND-CARD-B-005", "score": 0.33950120210647583, "sibling_score": 0.33950120210647583, "answer_score": null, "sibling_qid": "MUM-2026-06-3448-Q005", "sibling_text": "compression card and what will be the reason if expansion line is more than the compression reason line", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Interpreting Pmax, Pcomp and compression / expansion-line abnormalities", "cross_family": true } ] }, { "qid": "MUM-2023-03-2722-Q004", "text": "Csr . How many forms in there , How many amendments in csr u can think will happen in ships life time . If changes would be 4 or 5 max then why do u need an index for the that ..u can juts write the amendment . How do u ensure safety of navigation as 2e . Motor . Details of engine No of tie bolts . What us pretensioning why its done . if tightening pressure was 2200 then how much is read pressure and how much is pre tensioning pressure Reasons for serrations in con rod for 4 stroke engines . How they help , How better compared to a planing slant bolt How electronic engines are protected against failure of control cards . How many seconds it would take before the control\nis restored. Wanted to know electrical circuitry of its working Electrical . 1 how is high Voltage common point connected . . 2 How will you do\na continuity test for a 100 m long wire", "family": "Surveys - Statutory", "subtopic": "CSR / Continuous Synopsis Record", "tid": "MUM-2023-03-2722", "tray": "review", "candidates": [ { "answer_id": "SG-055-B-002", "score": 0.6615778207778931, "sibling_score": 0.6615778207778931, "answer_score": null, "sibling_qid": "KOC-2025-12-1675-Q009", "sibling_text": "steering gear safety and reason for each internal type of ship electrical job done in gas plant generator ir test precautions total how many readings which reading will be recorded sent to the company and value of the ir test", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Steering-gear alarms, trips and electrical / hydraulic safeties", "cross_family": true }, { "answer_id": "ELEC-SURV-002", "score": 0.6288593411445618, "sibling_score": 0.6288593411445618, "answer_score": 0.5121523261070251, "sibling_qid": "MUM-2022-09-1355-Q009", "sibling_text": "electrical checks in engine room", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Survey checks & engine-room electrical inspection", "cross_family": false }, { "answer_id": "ELEC-SURV-003", "score": 0.619307816028595, "sibling_score": 0.619307816028595, "answer_score": 0.519946163892746, "sibling_qid": "KOL-2025-08-2836-Q006", "sibling_text": "what all electrical survey certificate required on board ship", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Documents, certificates & trend records", "cross_family": false } ] }, { "qid": "MUM-2023-03-2727-Q002", "text": "ME details", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2023-03-2727", "tray": "new", "candidates": [ { "answer_id": "EEXI-001", "score": 0.4695529043674469, "sibling_score": 0.4695529043674469, "answer_score": null, "sibling_qid": "KOL-2021-12-0580-Q005", "sibling_text": "eexi details", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is EEXI? Explain it in full — formula, unit, application, and what an existing ship is", "cross_family": true }, { "answer_id": "MGPS-001", "score": 0.4638718068599701, "sibling_score": 0.4638718068599701, "answer_score": null, "sibling_qid": "KOL-2018-08-0204-Q003", "sibling_text": "mgps details", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "Explain the MGPS — purpose, working principle, layout, and how it prevents marine growth", "cross_family": true }, { "answer_id": "MEGI-304-002", "score": 0.46263736486434937, "sibling_score": 0.46263736486434937, "answer_score": null, "sibling_qid": "KOL-2026-01-2036-Q001", "sibling_text": "what is me g", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "2. ME-GI / ME-GA / ME-G and recent dual-fuel engine advancements", "cross_family": true } ] }, { "qid": "MUM-2023-03-2727-Q003", "text": "Power nd what rpm", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2023-03-2727", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P01-004", "score": 0.6713608503341675, "sibling_score": 0.6713608503341675, "answer_score": null, "sibling_qid": "KOC-2025-11-1069-Q003", "sibling_text": "why power is mentioned with rpm", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "MCR, NCR, sea margin, load curve, heavy running — and why ~85%", "cross_family": true }, { "answer_id": "IM-TSS-P01-002", "score": 0.6149423718452454, "sibling_score": 0.6149423718452454, "answer_score": null, "sibling_qid": "KOC-2022-08-1187-Q005", "sibling_text": "synchronous speed 1800rpm rated speed 1750 rpm power produced 25hp are given data then what power produced when the speed is 1775 rpm", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Torque production, rotor rotation and load response", "cross_family": true }, { "answer_id": "ETP-344-P01-001", "score": 0.6005840301513672, "sibling_score": 0.6005840301513672, "answer_score": 0.47511652410030364, "sibling_qid": "MUM-2025-07-1139-Q006", "sibling_text": "what is power description of your engine something given on name plate", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": true } ] }, { "qid": "MUM-2023-04-0099-Q003", "text": "Annex1 Discharge criteria", "family": "MARPOL - Annex I (Oil)", "subtopic": "OWS / 15ppm / ODMCS", "tid": "MUM-2023-04-0099", "tray": "review", "candidates": [ { "answer_id": "ODC-001", "score": 0.8020274043083191, "sibling_score": 0.8020274043083191, "answer_score": null, "sibling_qid": "KOL-2023-10-0780-Q004", "sibling_text": "discharge criteria as per annex 1", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "MARPOL Annex I oil discharge criteria — the overall framework", "cross_family": false }, { "answer_id": "CHEM-PA-005", "score": 0.763859212398529, "sibling_score": 0.763859212398529, "answer_score": null, "sibling_qid": "MUM-2026-03-2940-Q003", "sibling_text": "annex 2 discharge criteria", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Discharge criteria for NLS cargo residues, by category", "cross_family": false }, { "answer_id": "ODC-002", "score": 0.750893235206604, "sibling_score": 0.750893235206604, "answer_score": null, "sibling_qid": "MUM-2025-05-0268-Q003", "sibling_text": "annex 1 e r discharge criteria", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Machinery-space (engine room) bilge discharge criteria — outside a special area", "cross_family": false } ] }, { "qid": "MUM-2023-04-1382-Q004", "text": "undercurrent trip how to check", "family": "Electrical - Protection & Relays", "subtopic": "Protection / Relays", "tid": "MUM-2023-04-1382", "tray": "new", "candidates": [ { "answer_id": "OC-UV-TRIP-001", "score": 0.6156507730484009, "sibling_score": 0.6156507730484009, "answer_score": 0.4079131782054901, "sibling_qid": "MUM-2026-07-3797-Q013", "sibling_text": "how to check under voltage trip", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Under-voltage trip / no-volt coil — purpose, working, onboard test and calibration", "cross_family": false }, { "answer_id": "OCR-185-002", "score": 0.6037655472755432, "sibling_score": 0.6037655472755432, "answer_score": null, "sibling_qid": "KOL-2022-12-2628-Q002", "sibling_text": "how you check overcurrent trip onbaord 1 primary injection salt bath 2 secondary injection shore test kit", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Primary and secondary injection methods", "cross_family": false }, { "answer_id": "OCR-185-001", "score": 0.593071460723877, "sibling_score": 0.593071460723877, "answer_score": 0.39628679007291795, "sibling_qid": "KOL-2017-07-2139-Q002", "sibling_text": "over current trip testing", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Testing an overcurrent relay / overcurrent trip onboard", "cross_family": false } ] }, { "qid": "MUM-2023-04-1382-Q006", "text": "Motor overhaul checks", "family": "Electrical - Motors & Starters", "subtopic": "Motor Not Starting", "tid": "MUM-2023-04-1382", "tray": "review", "candidates": [ { "answer_id": "IR-TEST-B-016", "score": 0.8167353868484497, "sibling_score": 0.8167353868484497, "answer_score": 0.5583151876926422, "sibling_qid": "MUM-2025-05-1517-Q002", "sibling_text": "motor checks after receiving from overhaul", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Post-overhaul motor testing — proving it good without coupling to load", "cross_family": false }, { "answer_id": "ROTSTAT-C-002", "score": 0.7571037411689758, "sibling_score": 0.7571037411689758, "answer_score": null, "sibling_qid": "MUM-2024-06-1434-Q006", "sibling_text": "motor overhaul checks in rotor and stator", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Rotor & stator overhaul and inspection checks", "cross_family": false }, { "answer_id": "IRT-C-013", "score": 0.7557539939880371, "sibling_score": 0.7557539939880371, "answer_score": null, "sibling_qid": "KOC-2025-12-1662-Q003", "sibling_text": "checkes carried out on spare motor", "sibling_family": "Electrical - 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Alternator/generator safeties and protection trips", "cross_family": false }, { "answer_id": "ALT-MTN-B-001", "score": 0.5347865968942642, "sibling_score": null, "answer_score": 0.5347865968942642, "sibling_qid": "", "sibling_text": "routine onboard alternator maintenance checks clean air path dry low pressure air blow through cooler and filters clear keep winding temperature in band insulation resistance to earth on a megger trended over time investigate a falling trend do not wait for the alarm", "sibling_family": "", "via": "answer_title", "answer_title": "Routine onboard alternator maintenance checks", "cross_family": false }, { "answer_id": "ALT-MAINT-A-001", "score": 0.5309461176395416, "sibling_score": null, "answer_score": 0.5309461176395416, "sibling_qid": "", "sibling_text": "routine maintenance care of a ship s alternator make safe first permit to work isolate rack out and lock off the breaker immobilise the prime mover the set is engine driven a blackout dead bus auto start can crank it prove dead discharge the windings the space heater supply is separate it stays live after the alternator breaker is open isolate it independently before touching the windings", "sibling_family": "", "via": "answer_title", "answer_title": "Routine maintenance & care of a ship’s alternator", "cross_family": false } ] }, { "qid": "MUM-2023-04-2168-Q004", "text": "Nitriding how and where", "family": "Workshop & Welding", "subtopic": "Welding / NDT / Heat Treatment", "tid": "MUM-2023-04-2168", "tray": "new", "candidates": [ { "answer_id": "HEAT-TRT-C-001", "score": 0.5518006682395935, "sibling_score": 0.5518006682395935, "answer_score": 0.4202240616083145, "sibling_qid": "MUM-2026-05-3206-Q010", "sibling_text": "what is nitriding components on which nitriding carried out", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Nitriding — process, gas and where it is used on board", "cross_family": false }, { "answer_id": "HEAT-TRT-C-002", "score": 0.3121447890996933, "sibling_score": null, "answer_score": 0.3121447890996933, "sibling_qid": "", "sibling_text": "induction hardening and flame hardening principle and use both heat the surface above the upper critical austenitising temperature then quench the opposite of nitriding induction high frequency ac in a coil induces eddy currents the steel s own resistance heats the surface in seconds", "sibling_family": "", "via": "answer_title", "answer_title": "Induction hardening and flame hardening — principle and use", "cross_family": false }, { "answer_id": "LH-ELEC-001", "score": 0.27092460095882415, "sibling_score": null, "answer_score": 0.27092460095882415, "sibling_qid": "", "sibling_text": "1 where are low hydrogen electrodes used onboard used where the heat affected zone would harden and crack if hydrogen entered high tensile higher strength steels high carbon or alloy steels thick or heavily restrained joints highly stressed members typical onboard jobs hull deck bulkhead structural steel of the higher grades rudder and stern frame machinery seatings and brackets crack repairs on s", "sibling_family": "", "via": "answer_title", "answer_title": "1. Where are low-hydrogen electrodes used onboard?", "cross_family": false } ] }, { "qid": "MUM-2023-05-0100-Q002", "text": "Free surface effect", "family": "Ship Construction & Stability", "subtopic": "Static / Dynamic Stability/damage stability", "tid": "MUM-2023-05-0100", "tray": "review", "candidates": [ { "answer_id": "FSE-P03-003", "score": 0.7662019729614258, "sibling_score": 0.7662019729614258, "answer_score": 0.417999204993248, "sibling_qid": "KOC-2026-04-0900-Q004", "sibling_text": "explain free surface effect calculation", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "3. 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Give examples and state the conditions.", "cross_family": false }, { "answer_id": "DCG-003", "score": 0.6689119935035706, "sibling_score": 0.6689119935035706, "answer_score": null, "sibling_qid": "KOL-2023-09-0767-Q005", "sibling_text": "clear ground give any example of clear ground code", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the PSC deficiency code, which code leads to a detainable deficiency, and can you give an example of a \"clear-ground code\"?", "cross_family": false }, { "answer_id": "DCG-004", "score": 0.5930082201957703, "sibling_score": 0.5930082201957703, "answer_score": null, "sibling_qid": "KOL-2025-08-1020-Q010", "sibling_text": "clear ground nc mnc action", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the relationship between clear grounds, NC and MNC, and what action follows?", "cross_family": false } ] }, { "qid": "MUM-2023-05-0950-Q001", "text": "types of ship sailed and type of engines", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "MUM-2023-05-0950", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8174617886543274, "sibling_score": 0.8174617886543274, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.7811970710754395, "sibling_score": 0.7811970710754395, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q001", "sibling_text": "type of ship sailed and engines details", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7285633087158203, "sibling_score": 0.7285633087158203, "answer_score": null, "sibling_qid": "KOL-2025-12-2031-Q002", "sibling_text": "type of ship and engine sailed engine nomenclature", "sibling_family": "2-Stroke - 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Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "MUM-2023-05-0951-Q002", "text": "What is S", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2023-05-0951", "tray": "new", "candidates": [ { "answer_id": "ENG-NOM-003", "score": 0.5381479263305664, "sibling_score": 0.5381479263305664, "answer_score": null, "sibling_qid": "MUM-2025-11-1215-Q005", "sibling_text": "s stands for and s b ratio", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Stroke letters S/L/K/G, stroke-bore ratio, mark and series number", "cross_family": true }, { "answer_id": "SFOC-001", "score": 0.4685947895050049, "sibling_score": 0.4685947895050049, "answer_score": null, "sibling_qid": "CHE-2025-11-0083-Q005", "sibling_text": "what is sfc", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What is SFOC? 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Governor speed droop, isochronous control and the load-control switch", "cross_family": true }, { "answer_id": "SB-RATIO-004", "score": 0.5125826001167297, "sibling_score": 0.5125826001167297, "answer_score": 0.37749631702899933, "sibling_qid": "CHE-2025-08-0213-Q002", "sibling_text": "when 2 engines hv same rpm but one hv more stroke length what diff it will make", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Why is the stroke length increased? Its effect on the ship, which stroke creates more power, and two engines at the same rpm", "cross_family": true }, { "answer_id": "EGTP-P02-008", "score": 0.5048094987869263, "sibling_score": 0.5048094987869263, "answer_score": null, "sibling_qid": "MUM-2023-03-2727-Q004", "sibling_text": "why not run at more rpm", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "General Engine Theory — Operating Envelope", "cross_family": true } ] }, { "qid": "MUM-2023-05-1048-Q007", "text": "Ring type and what to do incase no spare and worn out", "family": "2-Stroke - Components (Other)", "subtopic": "Piston Rings", "tid": "MUM-2023-05-1048", "tray": "new", "candidates": [ { "answer_id": "SB-PRG-B-002", "score": 0.603277325630188, "sibling_score": 0.603277325630188, "answer_score": 0.4015457838773727, "sibling_qid": "MUM-2026-04-2956-Q003S7", "sibling_text": "o ring also no spare what will u do", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Worn rings, springs, O-rings and no-spare actions", "cross_family": false }, { "answer_id": "WRG-004", "score": 0.5299204587936401, "sibling_score": 0.5299204587936401, "answer_score": 0.3749212712049484, "sibling_qid": "MUM-2026-05-3301-Q007", "sibling_text": "wear ring wearing out", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Why wear rings wear, why they wear out frequently, and reusing an over-clearance ring with no spare on board", "cross_family": true }, { "answer_id": "PRING-B-005", "score": 0.5126219391822815, "sibling_score": 0.5126219391822815, "answer_score": null, "sibling_qid": "MUM-2023-06-2736-Q001S6", "sibling_text": "man b w piston ring new circular", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Running-in & latest developments", "cross_family": false } ] }, { "qid": "MUM-2023-05-1048-Q011", "text": "Conrod checks, why serration", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "", "tid": "MUM-2023-05-1048", "tray": "review", "candidates": [ { "answer_id": "CRB-007", "score": 0.6798822283744812, "sibling_score": 0.6798822283744812, "answer_score": 0.40904610008001324, "sibling_qid": "MUM-2026-03-2951-Q010", "sibling_text": "checks on serration", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Why are serrations provided at the connecting rod, and why are they not provided at the main bearing?", "cross_family": false }, { "answer_id": "AE-CRP-004", "score": 0.5670959949493408, "sibling_score": 0.5670959949493408, "answer_score": 0.3150391191244125, "sibling_qid": "KOC-2021-08-1765-Q002", "sibling_text": "conrod checks ovality of conrod only need to check if serration lapping is done", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE connecting-rod inspection — ovality, trueness, serrations, action if out of limit", "cross_family": true }, { "answer_id": "AE-CRP-006", "score": 0.5654441118240356, "sibling_score": 0.5654441118240356, "answer_score": 0.3072701066732407, "sibling_qid": "KOL-2018-08-1409-Q008", "sibling_text": "a e why conrod have serrations in bottom bearing cover", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE connecting-rod design — section, serrations, oblique cut, whip loading", "cross_family": true } ] }, { "qid": "MUM-2023-05-1049-Q007", "text": "Boiler water tests?", "family": "Boilers - Water Treatment & Chemistry", "subtopic": "Boiler Water Test / Treatment", "tid": "MUM-2023-05-1049", "tray": "new", "candidates": [ { "answer_id": "BLR-SURV-P02-004", "score": 0.555486798286438, "sibling_score": 0.555486798286438, "answer_score": null, "sibling_qid": "MUM-2026-06-3564-Q002", "sibling_text": "tests on boiler structure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": true }, { "answer_id": "BWTEST-A-001", "score": 0.5319867134094238, "sibling_score": 0.5319867134094238, "answer_score": 0.3441037341952324, "sibling_qid": "MUM-2022-11-2715-Q026", "sibling_text": "boiler water tests with all parameters", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": true }, { "answer_id": "NDT-METH-P01-001", "score": 0.4714341163635254, "sibling_score": 0.4714341163635254, "answer_score": null, "sibling_qid": "MUM-2024-01-2216-Q006", "sibling_text": "tests destructive and non destructive", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "NDT methods, NDT vs destructive testing, and onboard use", "cross_family": true } ] }, { "qid": "MUM-2023-05-1385-Q001", "text": "How many alternates on last ship", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2023-05-1385", "tray": "new", "candidates": [ { "answer_id": "CLASS-NOT-001", "score": 0.4827958941459656, "sibling_score": 0.4827958941459656, "answer_score": null, "sibling_qid": "MUM-2026-06-3644-Q002", "sibling_text": "draw notation of last ship", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is class notation, and how would you explain the notation written for your ship?", "cross_family": true }, { "answer_id": "SFOC-003", "score": 0.4569404721260071, "sibling_score": 0.4569404721260071, "answer_score": null, "sibling_qid": "KOL-2018-01-1346-Q002", "sibling_text": "sfoc value in ur last ship", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What is the SFOC of your main engine? With BHP, stroke and cylinder oil consumption", "cross_family": true }, { "answer_id": "KGF-A-004", "score": 0.4508332908153534, "sibling_score": 0.4508332908153534, "answer_score": null, "sibling_qid": "KOC-2024-08-0400-Q002", "sibling_text": "mid ship section of your last ship", "sibling_family": "", "via": "sibling", "answer_title": "Hull / midship cross-section: draw & identify", "cross_family": false } ] }, { "qid": "MUM-2023-05-1385-Q002", "text": "Capacity of alternator, why this capacity is needed?", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator / Generator", "tid": "MUM-2023-05-1385", "tray": "review", "candidates": [ { "answer_id": "ALT-GEN-P02-001", "score": 0.6954795122146606, "sibling_score": 0.6954795122146606, "answer_score": 0.44249547719955445, "sibling_qid": "KOC-2025-11-1648-Q002", "sibling_text": "alternator capacity", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Alternator/generator specifications, ratings and ship electrical supply details", "cross_family": false }, { "answer_id": "LS-IMB-A-001", "score": 0.5842127799987793, "sibling_score": 0.5842127799987793, "answer_score": null, "sibling_qid": "KOL-2025-10-2898-Q002", "sibling_text": "reason two alternator kw load same current not same", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Two paralleled generators sharing unequal load — cause and correction", "cross_family": false }, { "answer_id": "PWR-ARA-004", "score": 0.4773057639598846, "sibling_score": null, "answer_score": 0.4773057639598846, "sibling_qid": "", "sibling_text": "why an alternator is rated in kva not kw rating is limited by current copper i r heating and by voltage and frequency iron flux insulation not by watts maker cannot know the load pf so cannot guarantee kw he rates the kva it can carry", "sibling_family": "", "via": "answer_title", "answer_title": "Why an alternator is rated in kVA, not kW", "cross_family": false } ] }, { "qid": "MUM-2023-05-1386-Q004", "text": "Q How do you change the Battery of PLC", "family": "Electrical - Electronics & Power Conversion", "subtopic": "PLC", "tid": "MUM-2023-05-1386", "tray": "review", "candidates": [ { "answer_id": "EPC-P03-002", "score": 0.8423125147819519, "sibling_score": 0.8423125147819519, "answer_score": null, "sibling_qid": "MUM-2026-01-1841-Q005", "sibling_text": "how to change a battery of plc", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What are the components and parts of a PLC — including the memory types and what data is stored in each?", "cross_family": false }, { "answer_id": "BATT-TYPE-001", "score": 0.7201539874076843, "sibling_score": 0.7201539874076843, "answer_score": null, "sibling_qid": "MUM-2026-07-3675-Q005", "sibling_text": "type of plc battery", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What type of battery is used onboard, and how do you select one?", "cross_family": false }, { "answer_id": "BDC-P01-03", "score": 0.7165222764015198, "sibling_score": 0.7165222764015198, "answer_score": null, "sibling_qid": "MUM-2026-04-2953-Q006", "sibling_text": "plc battery voltage", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Nickel-cadmium (alkaline) battery — construction, working and cell data", "cross_family": false } ] }, { "qid": "MUM-2023-05-1386-Q005", "text": "X how do you make sure in this process the data is remained protected.", "family": "Electrical - Electronics & Power Conversion", "subtopic": "PLC", "tid": "MUM-2023-05-1386", "tray": "new", "candidates": [ { "answer_id": "IP-RATING-001", "score": 0.4951317012310028, "sibling_score": 0.4951317012310028, "answer_score": null, "sibling_qid": "MUM-2026-03-2607-Q002", "sibling_text": "what is there to protect it", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "IP (ingress protection) rating — the two digits, why it is needed, and how it is kept intact on ship equipment", "cross_family": false }, { "answer_id": "T038-P01-002", "score": 0.4350980520248413, "sibling_score": 0.4350980520248413, "answer_score": null, "sibling_qid": "MUM-2026-04-2098-Q002", "sibling_text": "hv special protections", "sibling_family": "", "via": "sibling", "answer_title": "HV system onboard — layout, components, applications, earthing & protection", "cross_family": false }, { "answer_id": "STAT-BOND-BF045-002", "score": 0.4318845868110657, "sibling_score": 0.4318845868110657, "answer_score": null, "sibling_qid": "CHE-2025-11-0080-Q003", "sibling_text": "how will you protect and action", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "How is static electricity controlled and prevented on a tanker — deck and cargo-tank arrangements?", "cross_family": true } ] }, { "qid": "MUM-2023-05-1386-Q015", "text": "Q. what are the various types of C/B in HV system.", "family": "", "subtopic": "Circuit Breakers (ACB / VCB / SF6)", "tid": "MUM-2023-05-1386", "tray": "review", "candidates": [ { "answer_id": "CB-ACBVCBSF6-E-001", "score": 0.674254298210144, "sibling_score": 0.674254298210144, "answer_score": 0.5043927371501923, "sibling_qid": "MUM-2026-09-3894-Q002", "sibling_text": "types of cb circuit breaker", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "What are the common types of circuit breakers used onboard and where are ACB, MCB, MCCB, VCB and SF6 breakers applied?", "cross_family": false }, { "answer_id": "CBKR-H-001", "score": 0.6686071157455444, "sibling_score": 0.6686071157455444, "answer_score": 0.49364108741283413, "sibling_qid": "KOC-2024-12-1454-Q011", "sibling_text": "cb used in hv working of vcb", "sibling_family": "", "via": "sibling", "answer_title": "How do VCB and SF6 breakers work in a high-voltage system, and why are they used instead of an ACB?", "cross_family": false }, { "answer_id": "CB033-C-001", "score": 0.6284827589988708, "sibling_score": 0.6284827589988708, "answer_score": null, "sibling_qid": "MUM-2026-02-1949-Q011", "sibling_text": "breaker types acb maintenance vcb advantages", "sibling_family": "", "via": "sibling", "answer_title": "How do you carry out maintenance and testing on an ACB / main circuit breaker?", "cross_family": false } ] }, { "qid": "MUM-2023-05-1388-Q004", "text": "DIFFERENCE BETWEEN DRAWING AND MANUALS.", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "MUM-2023-05-1388", "tray": "new", "candidates": [ { "answer_id": "FIRE-P01-02", "score": 0.5025966763496399, "sibling_score": 0.5025966763496399, "answer_score": null, "sibling_qid": "KOC-2024-02-0295-Q001", "sibling_text": "hypermist draw and explain manual operation", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist — automatic and manual activation, detector logic, and backup supply", "cross_family": true }, { "answer_id": "EICU-MAN-P01-003", "score": 0.48282480239868164, "sibling_score": 0.48282480239868164, "answer_score": null, "sibling_qid": "KOL-2017-11-1330-Q001", "sibling_text": "manoeuvring diag he didn t want me to draw just the explanation", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Main-engine manoeuvring sequence and emergency manoeuvring", "cross_family": true }, { "answer_id": "PA-MAN-001", "score": 0.4689634442329407, "sibling_score": 0.4689634442329407, "answer_score": null, "sibling_qid": "KOL-2026-10-4318-Q001", "sibling_text": "p and a manual", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What is the P&A Manual (Procedures and Arrangements Manual)?", "cross_family": true } ] }, { "qid": "MUM-2023-05-2170-Q002", "text": "auxilary water tube boiler tube leaking how to repair", "family": "Boilers - Operations & Firing", "subtopic": "Boiler Operations", "tid": "MUM-2023-05-2170", "tray": "review", "candidates": [ { "answer_id": "BLR-TUBE-P02-003", "score": 0.7228946685791016, "sibling_score": 0.7228946685791016, "answer_score": 0.5354120433330536, "sibling_qid": "KOL-2021-09-3456-Q003", "sibling_text": "boiler tube leaking explain about the repair procedure", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Repairing, removing and renewing a boiler tube; Class formalities", "cross_family": true }, { "answer_id": "BLR-TUBE-P02-001", "score": 0.7089794874191284, "sibling_score": 0.7089794874191284, "answer_score": 0.5291803777217865, "sibling_qid": "KOL-2021-08-1621-Q012", "sibling_text": "boiler tubes fitting what to do if tube leaking", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Identifying a boiler tube leak and finding the leaking tube", "cross_family": true }, { "answer_id": "BLR-TUBE-P02-002", "score": 0.7058672904968262, "sibling_score": 0.7058672904968262, "answer_score": 0.5866331428289413, "sibling_qid": "MUM-2026-02-2572-Q003", "sibling_text": "boiler tube leaking how to plug", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Plugging a leaking boiler tube (temporary arrest)", "cross_family": true } ] }, { "qid": "MUM-2023-05-2170-Q007", "text": "various modification in design of piston ring", "family": "2-Stroke - Components (Other)", "subtopic": "Piston Rings", "tid": "MUM-2023-05-2170", "tray": "review", "candidates": [ { "answer_id": "PRING-CLR-A-002", "score": 0.8066673874855042, "sibling_score": 0.8066673874855042, "answer_score": null, "sibling_qid": "NOI-2026-09-0025-Q008", "sibling_text": "piston ring new type modifications", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston-ring clearances and calibration — butt, axial, radial, wear limits", "cross_family": false }, { "answer_id": "PRING-B-005", "score": 0.7862066030502319, "sibling_score": 0.7862066030502319, "answer_score": null, "sibling_qid": "MUM-2024-02-2759-Q005", "sibling_text": "modifications in piston rings", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Running-in & latest developments", "cross_family": false }, { "answer_id": "PRING-B-004", "score": 0.6769313812255859, "sibling_score": 0.6769313812255859, "answer_score": null, "sibling_qid": "KOL-2021-02-1578-Q004", "sibling_text": "in normal piston rings whts u have check types of piston rings where use angular oblique type piston rings", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Function, sealing, position & arrangement", "cross_family": false } ] }, { "qid": "MUM-2023-05-2170-Q008", "text": "how to charge oil on refrigeration compressor,when you dont have hand pump", "family": "Refrigeration & AC", "subtopic": "Refrigeration Lubricating Oil / Flock Point / Oil Charging", "tid": "MUM-2023-05-2170", "tray": "review", "candidates": [ { "answer_id": "REEF-COMP-004", "score": 0.7462909817695618, "sibling_score": 0.7462909817695618, "answer_score": 0.6269249647855758, "sibling_qid": "KOL-2026-09-4301-Q002", "sibling_text": "how to charge oil in refer compressor", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Charging, replenishing and draining compressor lube oil — including with no charging pump", "cross_family": false }, { "answer_id": "REEF-COMP-001", "score": 0.6980994343757629, "sibling_score": 0.6980994343757629, "answer_score": null, "sibling_qid": "KOL-2026-10-4320-Q007", "sibling_text": "how to charge oil in domestic fridge compressor why vacuum pump needed which gauge required", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Reefer/AC compressor safeties and cut-outs — safety valve, HP and LP cut-outs", "cross_family": false }, { "answer_id": "REEF-COMP-010", "score": 0.5173234939575195, "sibling_score": null, "answer_score": 0.5173234939575195, "sibling_qid": "", "sibling_text": "starting changing over and lubricating a reefer compressor plant after provisions and in normal running before start crankcase oil pan heater on well ahead warms the oil and drives off dissolved refrigerant preventing foaming oil loss and a low oil pressure trip check oil level and charge open suction and discharge service valves before starting never start against a closed discharge over pressure", "sibling_family": "", "via": "answer_title", "answer_title": "Starting, changing over and lubricating a reefer compressor/plant — after provisions and in normal running", "cross_family": false } ] }, { "qid": "MUM-2023-05-2171-Q002", "text": "Different types of welding(1G,2G,3G,4G, 5G,6G)", "family": "Workshop & Welding", "subtopic": "Welding / Brazing / Soldering", "tid": "MUM-2023-05-2171", "tray": "new", "candidates": [ { "answer_id": "WELD-PATM-004", "score": 0.6366519927978516, "sibling_score": 0.6366519927978516, "answer_score": null, "sibling_qid": "KOL-2025-10-2017-Q009", "sibling_text": "ig welding", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "MIG welding – process and applications", "cross_family": false }, { "answer_id": "WELD-PATM-005", "score": 0.6348012089729309, "sibling_score": 0.6348012089729309, "answer_score": null, "sibling_qid": "MUM-2026-03-2626-Q003", "sibling_text": "types of welding procedure explain tig mig", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "TIG vs MIG – differences, uses, advantages", "cross_family": false }, { "answer_id": "PIPEFAB-011", "score": 0.6339618563652039, "sibling_score": 0.6339618563652039, "answer_score": 0.44453318119049073, "sibling_qid": "CHE-2026-05-0643-Q011", "sibling_text": "gi welding procedure", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Explain the repair procedure for a GI or GRP pipe, including welding a GI pipe", "cross_family": false } ] }, { "qid": "MUM-2023-05-2171-Q003", "text": "what are the problems in welding cast iron, which is the electrode used", "family": "Workshop & Welding", "subtopic": "Cast Iron Welding", "tid": "MUM-2023-05-2171", "tray": "review", "candidates": [ { "answer_id": "WELD-B-001", "score": 0.7439236044883728, "sibling_score": 0.7439236044883728, "answer_score": null, "sibling_qid": "MUM-2026-06-3641-Q001", "sibling_text": "cast iron welding which electrode", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding & crack-repair of aluminium and cast iron, including metal stitching", "cross_family": false }, { "answer_id": "WELD-B-006", "score": 0.5047294497489929, "sibling_score": null, "answer_score": 0.5047294497489929, "sibling_qid": "", "sibling_text": "welding electrodes selection storage and handling selection match electrode to parent metal to welding position to available current type ac dc and size to plate thickness low hydrogen basic coated electrodes are moisture sensitive absorbed moisture becomes hydrogen in the arc causes porosity and hydrogen cold cracking", "sibling_family": "", "via": "answer_title", "answer_title": "Welding electrodes — selection, storage and handling", "cross_family": false }, { "answer_id": "LH-ELEC-006", "score": 0.49958422183990475, "sibling_score": null, "answer_score": 0.49958422183990475, "sibling_qid": "", "sibling_text": "6 how would you approach a cast iron valve repair when the examiner probes welding and low hydrogen electrodes first response replace or fit a sound same size valve a welded cast iron repair is a stop gap not equal to new if welding cast iron not a plain mild steel low hydrogen rod the high carbon makes a hard brittle cracking weld", "sibling_family": "", "via": "answer_title", "answer_title": "6. How would you approach a cast-iron valve repair when the examiner probes welding and low-hydrogen electrodes?", "cross_family": false } ] }, { "qid": "MUM-2023-05-2171-Q005", "text": "Stern tube integrity test ? ", "family": "Shafting, Propeller & Rudder", "subtopic": "Tail Shaft / Stern Tube", "tid": "MUM-2023-05-2171", "tray": "review", "candidates": [ { "answer_id": "STT-BRG-005", "score": 0.7987011075019836, "sibling_score": 0.7987011075019836, "answer_score": null, "sibling_qid": "KOC-2024-08-1001-Q007", "sibling_text": "stern tube integrity test", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "4. Seal leakage — detection, water-ingress diagnosis and integrity test", "cross_family": false }, { "answer_id": "STERN-TUBE-P04-002", "score": 0.7764729857444763, "sibling_score": 0.7764729857444763, "answer_score": 0.5007848560810089, "sibling_qid": "KOC-2022-01-1773-Q006", "sibling_text": "stern tube integrity test int", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Stern tube and seal integrity tests after survey and while underway", "cross_family": true }, { "answer_id": "STT-BRG-002", "score": 0.720609724521637, "sibling_score": 0.720609724521637, "answer_score": 0.4287322610616684, "sibling_qid": "MUM-2022-11-2717-Q010", "sibling_text": "stern tube checks", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "1. Stern tube — arrangement, function, materials and types", "cross_family": false } ] }, { "qid": "MUM-2023-05-2172-Q001", "text": "Type of boilers", "family": "Boilers - Construction & Components", "subtopic": "Boiler Components / Circulation", "tid": "MUM-2023-05-2172", "tray": "review", "candidates": [ { "answer_id": "BLR-CAP-BOILER-CAPACITY-RATING-005", "score": 0.8219864964485168, "sibling_score": 0.8219864964485168, "answer_score": null, "sibling_qid": "MUM-2026-09-3885-Q004", "sibling_text": "types of boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "What are boiler pressure ratings or maximum working pressure?", "cross_family": false }, { "answer_id": "BLR-DRUM-002", "score": 0.794281542301178, "sibling_score": 0.794281542301178, "answer_score": null, "sibling_qid": "MUM-2026-06-3660-Q005", "sibling_text": "boiler type and boiler construction", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Steam-drum construction, material and plate manufacture, and construction-stage tests", "cross_family": false }, { "answer_id": "BLR-TUBE-P01-002", "score": 0.7901744246482849, "sibling_score": 0.7901744246482849, "answer_score": 0.5647630363702774, "sibling_qid": "CHE-2026-05-0555-Q009", "sibling_text": "what type boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "03. Types, functions and arrangement of boiler tubes", "cross_family": false } ] }, { "qid": "MUM-2023-05-2728-Q004", "text": "location of fusible plug in boiler, which type of boiler?", "family": "Boilers - Operations & Firing", "subtopic": "Boiler Operations", "tid": "MUM-2023-05-2728", "tray": "new", "candidates": [ { "answer_id": "CTRL-003", "score": 0.6402617692947388, "sibling_score": 0.6402617692947388, "answer_score": null, "sibling_qid": "KOL-2026-07-4281-Q002", "sibling_text": "spilt control in boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Split-range control — working and use", "cross_family": false }, { "answer_id": "BLR-ALM-005", "score": 0.6398824453353882, "sibling_score": 0.6398824453353882, "answer_score": 0.4931338906288147, "sibling_qid": "KOC-2022-03-1178-Q007", "sibling_text": "boiler electrical safeties", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler electrical alarms and safeties — identify the electrical protections associated with the boiler", "cross_family": false }, { "answer_id": "BLRBURN-002", "score": 0.6274097561836243, "sibling_score": 0.6274097561836243, "answer_score": null, "sibling_qid": "MUM-2026-03-2952-Q013", "sibling_text": "what type of boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Draw and explain the steam-assisted pressure jet burner — its advantages, disadvantages and nozzle material.", "cross_family": false } ] }, { "qid": "MUM-2023-05-2728-Q006", "text": "gas charging in ref?", "family": "Refrigeration & AC", "subtopic": "Reefer Charging", "tid": "MUM-2023-05-2728", "tray": "review", "candidates": [ { "answer_id": "REEF-CHG-001", "score": 0.7131896018981934, "sibling_score": 0.7131896018981934, "answer_score": 0.3916351556777954, "sibling_qid": "CHE-2026-02-0471-Q001", "sibling_text": "how to charge gas in refer", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "01Charging or replenishing the refrigerant in a refrigeration / AC plant", "cross_family": false }, { "answer_id": "REEF-CHG-002", "score": 0.6562939286231995, "sibling_score": 0.6562939286231995, "answer_score": 0.39317901283502577, "sibling_qid": "KOL-2019-02-3209-Q002", "sibling_text": "refer charging both process liquid gas", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "02Where and how gas and liquid refrigerant are charged into the system", "cross_family": false }, { "answer_id": "REEF-COMP-004", "score": 0.6061379313468933, "sibling_score": 0.6061379313468933, "answer_score": null, "sibling_qid": "KOC-2025-01-1457-Q011", "sibling_text": "refer charging", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Charging, replenishing and draining compressor lube oil — including with no charging pump", "cross_family": false } ] }, { "qid": "MUM-2023-06-0103-Q001", "text": "Type of ship - PCC Tell about your ship construction (i just started random things about no. Of deck, length, breath, etc)", "family": "Ship Construction & Stability", "subtopic": "", "tid": "MUM-2023-06-0103", "tray": "new", "candidates": [ { "answer_id": "PPS-230-006", "score": 0.6209771633148193, "sibling_score": 0.6209771633148193, "answer_score": null, "sibling_qid": "CHE-2026-09-3914-Q002", "sibling_text": "forward ship constructional arrangements", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Fore-end / fore-peak structure: draw and describe", "cross_family": false }, { "answer_id": "TONN-001", "score": 0.6046934127807617, "sibling_score": 0.6046934127807617, "answer_score": null, "sibling_qid": "CHE-2026-04-0166-Q002S2", "sibling_text": "tonnage deck", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Gross Tonnage (GT / GRT) — basis, units, significance", "cross_family": false }, { "answer_id": "SHELL-PLT-B-001", "score": 0.5957186222076416, "sibling_score": 0.5957186222076416, "answer_score": null, "sibling_qid": "KOL-2019-10-0330-Q002", "sibling_text": "how ship is made describe him frm keel plate to sheer strake with deck plating difinition of deck plating deck line", "sibling_family": "", "via": "sibling", "answer_title": "Sheer strake — location, why strengthened, deck-edge / gunwale connection", "cross_family": false } ] }, { "qid": "MUM-2023-06-0103-Q003", "text": "Watertight doors type n working", "family": "SOLAS - Watertight & Closing Appliances", "subtopic": "Watertight / Weathertight Doors", "tid": "MUM-2023-06-0103", "tray": "new", "candidates": [ { "answer_id": "WEATH-545-001", "score": 0.6285843253135681, "sibling_score": 0.6285843253135681, "answer_score": null, "sibling_qid": "MUM-2026-06-3358-Q003", "sibling_text": "water tight doors", "sibling_family": "SOLAS - Watertight & Closing Appliances", "via": "sibling", "answer_title": "What is weathertight, and how does it differ from watertight — meaning, application, location and testing?", "cross_family": false }, { "answer_id": "WTD-001", "score": 0.6127695441246033, "sibling_score": 0.6127695441246033, "answer_score": 0.4367224723100662, "sibling_qid": "MUM-2026-02-0782-Q006", "sibling_text": "types of watertight doors", "sibling_family": "SOLAS - Watertight & Closing Appliances", "via": "sibling", "answer_title": "What watertight doors are, the types fitted, and the SOLAS/Class requirements", "cross_family": false }, { "answer_id": "WTD-002", "score": 0.5966530442237854, "sibling_score": 0.5966530442237854, "answer_score": 0.4056451812386513, "sibling_qid": "KOL-2021-10-0562-Q003", "sibling_text": "watertight door maintenance", "sibling_family": "SOLAS - Watertight & Closing Appliances", "via": "sibling", "answer_title": "Inspecting, maintaining and testing watertight doors and watertight integrity in survey", "cross_family": false } ] }, { "qid": "MUM-2023-06-0104-Q006", "text": "TYPE OF SHIP", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2023-06-0104", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8361091017723083, "sibling_score": 0.8361091017723083, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8013882040977478, "sibling_score": 0.8013882040977478, "answer_score": 0.5470469176769256, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8000955581665039, "sibling_score": 0.8000955581665039, "answer_score": 0.5211816549301147, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2023-06-0104-Q007", "text": "LNG DFD Engine Safeties", "family": "Cargo Ops - Gas Carriers", "subtopic": "Dual Fuel", "tid": "MUM-2023-06-0104", "tray": "new", "candidates": [ { "answer_id": "ILK-318-005", "score": 0.564537525177002, "sibling_score": 0.564537525177002, "answer_score": null, "sibling_qid": "KOC-2024-05-2048-Q010", "sibling_text": "safeties in me engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "5. Main-engine trips and shutdowns linked with interlocks", "cross_family": true }, { "answer_id": "IGC-GAS-012", "score": 0.5185393691062927, "sibling_score": 0.5185393691062927, "answer_score": null, "sibling_qid": "CHE-2025-12-0326-Q002", "sibling_text": "2 safeties in compressor room and motor room in lng ships what is fusible plug", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Compressor-room and motor-room safeties (including the fusible plug)", "cross_family": false }, { "answer_id": "ILK-318-001", "score": 0.4881523847579956, "sibling_score": 0.4881523847579956, "answer_score": null, "sibling_qid": "CHE-2026-08-0663-Q011", "sibling_text": "interlock in main engine during engine operation under lng", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "1. What are the main engine interlocks?", "cross_family": true } ] }, { "qid": "MUM-2023-06-0104-Q013", "text": "How done?", "family": "Workshop & Welding", "subtopic": "Welding / NDT / Heat Treatment", "tid": "MUM-2023-06-0104", "tray": "new", "candidates": [ { "answer_id": "IR-TEST-B-002", "score": 0.5219077467918396, "sibling_score": 0.5219077467918396, "answer_score": null, "sibling_qid": "KOC-2025-11-1624-Q017", "sibling_text": "how to do", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "IR test of a low-voltage motor — the standard megger procedure", "cross_family": true }, { "answer_id": "ETP-344-P03-001", "score": 0.5035518407821655, "sibling_score": 0.5035518407821655, "answer_score": null, "sibling_qid": "KOC-2026-05-0045-Q002", "sibling_text": "whether done me engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": true }, { "answer_id": "BFS-257-010", "score": 0.4844512641429901, "sibling_score": 0.4844512641429901, "answer_score": null, "sibling_qid": "MUM-2025-05-0277-Q022", "sibling_text": "how to confirm if it s done properly got function 6", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "How to confirm soot blowing has been carried out effectively", "cross_family": true } ] }, { "qid": "MUM-2023-06-0104-Q018", "text": "GAS CARRIER Cargo tank construction ?", "family": "Cargo Ops - Gas Carriers", "subtopic": "Cargo Tank Construction", "tid": "MUM-2023-06-0104", "tray": "review", "candidates": [ { "answer_id": "GC-TANK-004", "score": 0.7822306752204895, "sibling_score": 0.7822306752204895, "answer_score": 0.5891732811927796, "sibling_qid": "KOL-2025-04-0931-Q007", "sibling_text": "cargo tank construction lpg carrier int", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Gas-carrier cargo tank construction: materials, insulation, fixing and tank safeties", "cross_family": false }, { "answer_id": "GC-TANK-001", "score": 0.7193677425384521, "sibling_score": 0.7193677425384521, "answer_score": null, "sibling_qid": "CHE-2026-02-0115-Q003S2", "sibling_text": "types of tanks in gas carriers", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Main cargo containment and independent tank types on LPG and LNG carriers", "cross_family": false }, { "answer_id": "IGC-GAS-001", "score": 0.7066901326179504, "sibling_score": 0.7066901326179504, "answer_score": null, "sibling_qid": "CHE-2025-08-0046-Q003", "sibling_text": "gas tanker specification", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "What is a gas carrier? Definition, cargoes, LPG / LNG / VLEC", "cross_family": false } ] }, { "qid": "MUM-2023-06-0104-Q020", "text": "Temp inside tanks, How temp maintained?", "family": "Cargo Ops - Gas Carriers", "subtopic": "Tank Cooldown", "tid": "MUM-2023-06-0104", "tray": "new", "candidates": [ { "answer_id": "CO2-SYS-002", "score": 0.5685420036315918, "sibling_score": 0.5685420036315918, "answer_score": null, "sibling_qid": "KOL-2020-12-0446-Q004", "sibling_text": "co2 maintainence how much temp maintained", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 maintenance, inspection, testing and survey routines", "cross_family": true }, { "answer_id": "REFR-FLT-001", "score": 0.5633913278579712, "sibling_score": 0.5633913278579712, "answer_score": null, "sibling_qid": "KOL-2021-11-3489-Q006", "sibling_text": "fish room temperature why not maintain", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Provision/cold room temperature: will not pull down, runs too low, or will not hold", "cross_family": true }, { "answer_id": "REEF-PREP-001", "score": 0.5580215454101562, "sibling_score": 0.5580215454101562, "answer_score": null, "sibling_qid": "MUM-2025-12-1233-Q011", "sibling_text": "ref room temp how maintained", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Provision (domestic) refrigerated rooms — arrangement and temperature control", "cross_family": true } ] }, { "qid": "MUM-2023-06-0104-Q022", "text": "Got Func 3", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2023-06-0104", "tray": "new", "candidates": [ { "answer_id": "SEEMP-123-B-001", "score": 0.6235113143920898, "sibling_score": 0.6235113143920898, "answer_score": null, "sibling_qid": "KOC-2026-03-0880-Q002", "sibling_text": "function 3 contents", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SEEMP Part III — the ship's operational carbon-intensity (CII) plan", "cross_family": true }, { "answer_id": "UNL-330-001", "score": 0.5366350412368774, "sibling_score": 0.5366350412368774, "answer_score": null, "sibling_qid": "KOL-2022-04-1673-Q005", "sibling_text": "3 function of unloder x que", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "What is the function of the main air compressor unloader?", "cross_family": true }, { "answer_id": "A6-NSEC-005", "score": 0.5290844440460205, "sibling_score": 0.5290844440460205, "answer_score": null, "sibling_qid": "MUM-2024-11-2777-Q007", "sibling_text": "seemp 3", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP — Part I, II & III", "cross_family": true } ] }, { "qid": "MUM-2023-06-0105-Q003", "text": "NC as per MLC", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2023-06-0105", "tray": "new", "candidates": [ { "answer_id": "ISMNC-001", "score": 0.5869600772857666, "sibling_score": 0.5869600772857666, "answer_score": null, "sibling_qid": "MUM-2023-03-0091-Q008", "sibling_text": "define nc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a non-conformity under the ISM Code? Give the definition.", "cross_family": true }, { "answer_id": "ISMNC-003", "score": 0.5639162063598633, "sibling_score": 0.5639162063598633, "answer_score": null, "sibling_qid": "MUM-2023-06-2730-Q006", "sibling_text": "mnc nc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Differentiate between a major non-conformity and a non-conformity under the ISM Code.", "cross_family": true }, { "answer_id": "DCG-004", "score": 0.2859826356172562, "sibling_score": null, "answer_score": 0.2859826356172562, "sibling_qid": "", "sibling_text": "what is the relationship between clear grounds nc and mnc and what action follows one chain clear grounds trigger detailed inspection findings graded nc or major nc under the ism code non conformity ism an observed situation where objective evidence shows a specified sms requirement is not fulfilled", "sibling_family": "", "via": "answer_title", "answer_title": "What is the relationship between clear grounds, NC and MNC, and what action follows?", "cross_family": false } ] }, { "qid": "MUM-2023-06-0105-Q004", "text": "work rest hours as per MLC", "family": "MLC", "subtopic": "MLC / DMLC / Work-Rest", "tid": "MUM-2023-06-0105", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-002", "score": 0.7295823693275452, "sibling_score": 0.7295823693275452, "answer_score": 0.5533761620521546, "sibling_qid": "MUM-2026-02-2918-Q018", "sibling_text": "mlc work and rest hours", "sibling_family": "MLC", "via": "sibling", "answer_title": "Work and rest hours under MLC — the criteria, the weekly limit, the intervals", "cross_family": false }, { "answer_id": "MLC-WRH-B-004", "score": 0.5968965888023376, "sibling_score": 0.5968965888023376, "answer_score": null, "sibling_qid": "KOL-2021-07-0526-Q006", "sibling_text": "4 mlc 2006 rest hours minimum age required to workonboard minimum age for night watch", "sibling_family": "MLC", "via": "sibling", "answer_title": "Young seafarers — minimum age, night work, and what the 2/E must ensure", "cross_family": false }, { "answer_id": "MLC-WRH-B-003", "score": 0.5893719792366028, "sibling_score": 0.5893719792366028, "answer_score": 0.4753174066543579, "sibling_qid": "MUM-2025-10-0519-Q001", "sibling_text": "are rest hours in stcw and mlc same", "sibling_family": "MLC", "via": "sibling", "answer_title": "STCW versus MLC rest hours — the Manila amendments, and is a 6-2-2 split acceptable", "cross_family": false } ] }, { "qid": "MUM-2023-06-0105-Q005", "text": "what is permiability", "family": "", "subtopic": "Floodable Length / Permeability", "tid": "MUM-2023-06-0105", "tray": "new", "candidates": [ { "answer_id": "FLP-142-P02-002", "score": 0.6464610695838928, "sibling_score": 0.6464610695838928, "answer_score": 0.4989984452724457, "sibling_qid": "KOL-2021-10-0562-Q004", "sibling_text": "permiability define in 1 line", "sibling_family": "", "via": "sibling", "answer_title": "Permeability — what it is and where it is used", "cross_family": false }, { "answer_id": "FLP-142-P02-003", "score": 0.6122679710388184, "sibling_score": 0.6122679710388184, "answer_score": 0.4013718545436859, "sibling_qid": "MUM-2025-12-0626-Q008", "sibling_text": "permeability its range", "sibling_family": "", "via": "sibling", "answer_title": "Permeability values — stores, accommodation, machinery, cargo, ro-ro", "cross_family": false }, { "answer_id": "MARGIN-LINE-004", "score": 0.39094607532024384, "sibling_score": null, "answer_score": 0.39094607532024384, "sibling_qid": "", "sibling_text": "margin line in subdivision floodable length and stability criteria floodable lengthat a point max length centred there that floods without immersing the margin line at the assumed permeability no list permeability percentage of a space that can fill with water varies by space type", "sibling_family": "", "via": "answer_title", "answer_title": "Margin line in subdivision, floodable length and stability criteria", "cross_family": false } ] }, { "qid": "MUM-2023-06-0105-Q006", "text": "what is audit and survey", "family": "ISM Code", "subtopic": "ISM / SMS / Audit", "tid": "MUM-2023-06-0105", "tray": "new", "candidates": [ { "answer_id": "AUDIT-IE-004", "score": 0.6236364841461182, "sibling_score": 0.6236364841461182, "answer_score": 0.4542888283729553, "sibling_qid": "KOC-2024-10-0437-Q006", "sibling_text": "audit and survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Difference between audit and survey", "cross_family": true }, { "answer_id": "ISM-AUD-P03-001", "score": 0.5983397364616394, "sibling_score": 0.5983397364616394, "answer_score": 0.40488360077142715, "sibling_qid": "KOC-2026-02-0822-Q011", "sibling_text": "difference between audit and survey he wants definition and differences", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Audit vs survey vs inspection; initial vs interim audit", "cross_family": false }, { "answer_id": "ISM-AUDIT-P01-002", "score": 0.5747390985488892, "sibling_score": 0.5747390985488892, "answer_score": null, "sibling_qid": "KOC-2023-12-0253-Q003", "sibling_text": "what are the audits carried in ism survey", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM/SMS audits and verifications — types, who conducts them, intervals and validity", "cross_family": false } ] }, { "qid": "MUM-2023-06-0105-Q007", "text": "what is included in SMS", "family": "ISM Code", "subtopic": "SMS / Functional Requirements", "tid": "MUM-2023-06-0105", "tray": "review", "candidates": [ { "answer_id": "SMSFR-002", "score": 0.7272577881813049, "sibling_score": 0.7272577881813049, "answer_score": 0.33519648015499115, "sibling_qid": "KOC-2022-03-0063-Q002", "sibling_text": "contents of sms", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the Safety Management System — the SMS manual, its contents, objectives, why it is needed onboard, and the company SMS policy?", "cross_family": false }, { "answer_id": "ISM-AUD-P02-004", "score": 0.726934552192688, "sibling_score": 0.726934552192688, "answer_score": 0.3137417674064636, "sibling_qid": "MUM-2022-08-0033-Q001", "sibling_text": "contents of sms", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "SMS contents, manuals, documents and drill records onboard", "cross_family": false }, { "answer_id": "ISM-AUD-P02-003", "score": 0.6548404097557068, "sibling_score": 0.6548404097557068, "answer_score": null, "sibling_qid": "MUM-2026-04-0928-Q006", "sibling_text": "ism elements and functional requirements of sms", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "The six functional requirements of the ISM Code (clause 1.4)", "cross_family": false } ] }, { "qid": "MUM-2023-06-0107-Q001", "text": "What is Air lubricated hull system?", "family": "", "subtopic": "Air Lubricated Hull System", "tid": "MUM-2023-06-0107", "tray": "review", "candidates": [ { "answer_id": "RES-PROP-P01-002", "score": 0.6622986793518066, "sibling_score": 0.6622986793518066, "answer_score": null, "sibling_qid": "MUM-2024-04-0172-Q008", "sibling_text": "air hull lubrication", "sibling_family": "", "via": "sibling", "answer_title": "Resistance types and methods of reducing them", "cross_family": false }, { "answer_id": "STS-P02-002", "score": 0.5785889625549316, "sibling_score": 0.5785889625549316, "answer_score": null, "sibling_qid": "KOC-2026-05-0029-Q008", "sibling_text": "sterntube lubrication how and draw air lubrication", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "STS-P02-02 - Stern tube lubrication, header tank and oil properties", "cross_family": false }, { "answer_id": "DUS-P4-03", "score": 0.5748838186264038, "sibling_score": 0.5748838186264038, "answer_score": 0.49822485744953154, "sibling_qid": "KOC-2025-12-1079-Q004", "sibling_text": "ship skin resistance reduction methods hull coating propeller advancements air lubrication of hull", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Card 3 — Ship skin-resistance reduction: hull coating, propeller and air-lubrication advances", "cross_family": false } ] }, { "qid": "MUM-2023-06-0108-Q002", "text": "What is odmcs system and how to calibrate", "family": "MARPOL - Annex I (Oil)", "subtopic": "OCM / ODME / ODMCS", "tid": "MUM-2023-06-0108", "tray": "new", "candidates": [ { "answer_id": "OMD-003", "score": 0.5542027950286865, "sibling_score": 0.5542027950286865, "answer_score": 0.37810010462999344, "sibling_qid": "KOL-2026-03-3937-Q001", "sibling_text": "omd calibration", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Explain the OMD working principle, its types and their differences, the electrical side, and zero setting and calibration.", "cross_family": true }, { "answer_id": "OILPOL-OWS-001", "score": 0.5522319674491882, "sibling_score": 0.5522319674491882, "answer_score": 0.429355376958847, "sibling_qid": "CHE-2026-05-0543-Q016", "sibling_text": "odmcs calibration shore validity", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "ODMCS / ODME shore calibration — how long is it valid?", "cross_family": false }, { "answer_id": "ODC-014", "score": 0.5519593358039856, "sibling_score": 0.5519593358039856, "answer_score": null, "sibling_qid": "CHE-2025-08-0019-Q016", "sibling_text": "odmcs calibration shore validity", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "ODMCS — what it records, the log, and calibration", "cross_family": false } ] }, { "qid": "MUM-2023-06-0108-Q004", "text": "Panting strake why thickness is more", "family": "SOLAS", "subtopic": "Panting / Pounding / Slamming", "tid": "MUM-2023-06-0108", "tray": "new", "candidates": [ { "answer_id": "SHELL-PLT-B-001", "score": 0.6212928891181946, "sibling_score": 0.6212928891181946, "answer_score": null, "sibling_qid": "KOL-2019-08-0318-Q003", "sibling_text": "sheer strake why higher thickness", "sibling_family": "", "via": "sibling", "answer_title": "Sheer strake — location, why strengthened, deck-edge / gunwale connection", "cross_family": false }, { "answer_id": "PPS-230-002", "score": 0.4856663942337036, "sibling_score": 0.4856663942337036, "answer_score": 0.3172798842191696, "sibling_qid": "MUM-2022-07-0014-Q006", "sibling_text": "panting stringers", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Panting beams and panting stringers: purpose in the forward structure", "cross_family": false }, { "answer_id": "SB-RATIO-004", "score": 0.45384836196899414, "sibling_score": 0.45384836196899414, "answer_score": null, "sibling_qid": "KOC-2025-09-1053-Q006", "sibling_text": "why the stroke length is increased", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Why is the stroke length increased? Its effect on the ship, which stroke creates more power, and two engines at the same rpm", "cross_family": true } ] }, { "qid": "MUM-2023-06-0109-Q002", "text": "Status of exams how many attempt", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2023-06-0109", "tray": "new", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.5765315890312195, "sibling_score": 0.5765315890312195, "answer_score": null, "sibling_qid": "MUM-2026-01-1252-Q001", "sibling_text": "status of results oral written exam", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": false }, { "answer_id": "NDT-METH-P01-001", "score": 0.5084372162818909, "sibling_score": 0.5084372162818909, "answer_score": null, "sibling_qid": "MUM-2026-03-2946-Q006", "sibling_text": "the best thing you can do is figure out which exams you can appear for whether single subjects pairs or all together it depends on your will and capability for me i appeared in pairs 2 writtens and 1 oral because i knew my capability it differs for everyone many attempt all 6 together as per my knowledge few pass all 6 some pass 4 5 some pass 1 3 and some failed all", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "NDT methods, NDT vs destructive testing, and onboard use", "cross_family": false }, { "answer_id": "CFF-P02-001", "score": 0.4810057282447815, "sibling_score": 0.4810057282447815, "answer_score": null, "sibling_qid": "KOL-2017-09-1324-Q005", "sibling_text": "fatigue failure lots of cross qst with all qst finally done with cl 2 thank you all for your support and best of luck for who r in que", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Fatigue failure — what it is and where it occurs", "cross_family": true } ] }, { "qid": "MUM-2023-06-0109-Q010", "text": "Hru, what should not be done with painter", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Liferaft / HRU", "tid": "MUM-2023-06-0109", "tray": "new", "candidates": [ { "answer_id": "LRHR-B-010", "score": 0.5911769270896912, "sibling_score": 0.5911769270896912, "answer_score": null, "sibling_qid": "KOL-2022-04-0622-Q002", "sibling_text": "hru operation painter connected to weak link", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Explain the HRU's operating principle and full operation. Draw it.", "cross_family": false }, { "answer_id": "PLE-468-002", "score": 0.4968644380569458, "sibling_score": 0.4968644380569458, "answer_score": null, "sibling_qid": "KOL-2026-02-1176-Q008", "sibling_text": "rescue boat painter regulation", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "2. Painter requirements for lifeboats and rescue boats", "cross_family": false }, { "answer_id": "AFS-309-004", "score": 0.49161458015441895, "sibling_score": 0.49161458015441895, "answer_score": 0.2696443736553192, "sibling_qid": "KOC-2025-09-0659-Q004", "sibling_text": "paint which doesn t have this harmful effect", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Anti-fouling paint types, biocide-free coatings, and the harm from TBT and cybutryne", "cross_family": true } ] }, { "qid": "MUM-2023-06-0109-Q011", "text": "What is fast rescue boat", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Lifeboat / Davit / LSA", "tid": "MUM-2023-06-0109", "tray": "review", "candidates": [ { "answer_id": "RB-FRB-001", "score": 0.7330980896949768, "sibling_score": 0.7330980896949768, "answer_score": 0.5418967247009278, "sibling_qid": "MUM-2025-11-0553-Q003", "sibling_text": "rescue boat fast rescue boat", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Rescue boat vs fast rescue boat — and where a fast rescue boat is required", "cross_family": false }, { "answer_id": "RB-FRB-004", "score": 0.637585461139679, "sibling_score": 0.637585461139679, "answer_score": 0.48519333004951476, "sibling_qid": "MUM-2026-04-0925-Q012", "sibling_text": "speed of high speed rescue boat", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Rescue-boat technical checks — speed, emergency-power supply, and engine differences", "cross_family": false }, { "answer_id": "LSA-LB-A-009", "score": 0.6209930181503296, "sibling_score": 0.6209930181503296, "answer_score": 0.4396660983562469, "sibling_qid": "KOL-2022-07-0652-Q002", "sibling_text": "lifeboat liferat rescue boat", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat vs liferaft vs rescue boat — and why each is carried", "cross_family": false } ] }, { "qid": "MUM-2023-06-0109-Q012", "text": "Difference between fast and normal rescue boat, requirements", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Lifeboat / Davit / LSA", "tid": "MUM-2023-06-0109", "tray": "review", "candidates": [ { "answer_id": "RB-FRB-001", "score": 0.7283239960670471, "sibling_score": 0.7283239960670471, "answer_score": 0.5839084863662719, "sibling_qid": "MUM-2026-05-3338-Q003", "sibling_text": "different b w rescue boat and fast rescue boat where both type used", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Rescue boat vs fast rescue boat — and where a fast rescue boat is required", "cross_family": false }, { "answer_id": "RB-FRB-002", "score": 0.6803939342498779, "sibling_score": 0.6803939342498779, "answer_score": 0.48641007542610165, "sibling_qid": "KOL-2021-03-0477-Q008", "sibling_text": "difference between life boat and rescue boat in detail construction capacity time gear fuel speed etc rao s decider", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat vs rescue boat — and when a lifeboat is accepted as a rescue boat", "cross_family": false }, { "answer_id": "LSA-LB-A-009", "score": 0.6153375506401062, "sibling_score": 0.6153375506401062, "answer_score": 0.46250287294387815, "sibling_qid": "KOL-2022-05-0635-Q005", "sibling_text": "diff b w life raft life boat and rescue boat regulations because of which they are on board min max capacity of liferaft", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat vs liferaft vs rescue boat — and why each is carried", "cross_family": false } ] }, { "qid": "MUM-2023-06-0109-Q013", "text": "Dmlc parts who made it", "family": "MLC", "subtopic": "MLC / DMLC / Work-Rest", "tid": "MUM-2023-06-0109", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.5078585147857666, "sibling_score": 0.5078585147857666, "answer_score": 0.27159366905689236, "sibling_qid": "KOC-2025-08-2071-Q013", "sibling_text": "dmlc part 1 and part", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "CBR-ARC-G-002", "score": 0.2294341206550598, "sibling_score": null, "answer_score": 0.2294341206550598, "sibling_qid": "", "sibling_text": "acb construction contacts arc chutes auxiliaries and vcb parts", "sibling_family": "", "via": "answer_title", "answer_title": "ACB construction, contacts, arc chutes, auxiliaries and VCB parts", "cross_family": false }, { "answer_id": "CSM-214-003", "score": 0.22895283848047257, "sibling_score": null, "answer_score": 0.22895283848047257, "sibling_qid": "", "sibling_text": "what the chief engineer can credit what he cannot and how ce creditable irs section 3 me covers valves liners pistons rods connecting rods crossheads bearings fuel injection booster pumps scavenge pumps blowers air coolers dampers balancers camshaft drive thrust bearing turbocharger governor complete auxiliary diesel steam engines incl coolers pumps me driven and independently driven pumps fw lo c", "sibling_family": "", "via": "answer_title", "answer_title": "What the Chief Engineer can credit, what he cannot, and how", "cross_family": false } ] }, { "qid": "MUM-2023-06-0111-Q001", "text": "Bulk carrier water ingress", "family": "SOLAS - General (HOLD)", "subtopic": "Solas Chapter 12 - Bulk", "tid": "MUM-2023-06-0111", "tray": "review", "candidates": [ { "answer_id": "SOLAS12-BC-E-001", "score": 0.7099558115005493, "sibling_score": 0.7099558115005493, "answer_score": 0.5156497597694397, "sibling_qid": "KOL-2022-07-0663-Q001", "sibling_text": "additional safety on bulk carrier only water ingress system", "sibling_family": "", "via": "sibling", "answer_title": "Water ingress detection & alarm system (WIDAS) — SOLAS XII/12", "cross_family": false }, { "answer_id": "BC-IMSBC-002", "score": 0.6650779247283936, "sibling_score": 0.6650779247283936, "answer_score": null, "sibling_qid": "MUM-2025-07-0341-Q005", "sibling_text": "uperdeck drainage provision in bulk carrier", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "2. Bulk carrier construction and structural design", "cross_family": true }, { "answer_id": "SOLAS12-BC-E-003", "score": 0.6605618000030518, "sibling_score": 0.6605618000030518, "answer_score": 0.5251156091690063, "sibling_qid": "KOC-2025-04-0588-Q008", "sibling_text": "de watering in bulk carrier", "sibling_family": "", "via": "sibling", "answer_title": "Dewatering system / availability of pumping systems — SOLAS XII/13", "cross_family": false } ] }, { "qid": "MUM-2023-06-0111-Q003", "text": "Detainable deficiency", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2023-06-0111", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-007", "score": 0.7847686409950256, "sibling_score": 0.7847686409950256, "answer_score": null, "sibling_qid": "MUM-2026-02-0732-Q001", "sibling_text": "detainable deficiency as per mic", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false }, { "answer_id": "DCG-002", "score": 0.7387465834617615, "sibling_score": 0.7387465834617615, "answer_score": 0.4090285450220108, "sibling_qid": "KOL-2025-04-0931-Q013", "sibling_text": "example for detainable deficiency", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What are the reasons for PSC detention and what is a detainable deficiency? Which engine-room deficiencies can detain your ship, which conventions can ground a detainable deficiency, and what is banning by PSC?", "cross_family": true }, { "answer_id": "IGC-GAS-005", "score": 0.6436177492141724, "sibling_score": 0.6436177492141724, "answer_score": 0.4007729053497314, "sibling_qid": "KOC-2025-01-0530-Q006", "sibling_text": "detainable deficiency under igc code internal no questions", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Detainable deficiencies under the IGC Code (port State control)", "cross_family": true } ] }, { "qid": "MUM-2023-06-0111-Q004", "text": "Deficiency as per MLC", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2023-06-0111", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-007", "score": 0.6999032497406006, "sibling_score": 0.6999032497406006, "answer_score": 0.31407143771648405, "sibling_qid": "MUM-2026-06-3511-Q003", "sibling_text": "deficiency in mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false }, { "answer_id": "AII-DISCH-007", "score": 0.3095920607447624, "sibling_score": null, "answer_score": 0.3095920607447624, "sibling_qid": "", "sibling_text": "what deficiency may be raised when the annex ii discharge criteria are not satisfied a non compliant discharge is an illegal nls discharge not a minor defect psc deficiency discharge outside reg 13 inadequate stripping cargo record book gaps or false entries potentially detainable", "sibling_family": "", "via": "answer_title", "answer_title": "What deficiency may be raised when the Annex II discharge criteria are not satisfied", "cross_family": false }, { "answer_id": "DCG-003", "score": 0.3041705623269081, "sibling_score": null, "answer_score": 0.3041705623269081, "sibling_qid": "", "sibling_text": "what is the psc deficiency code which code leads to a detainable deficiency and can you give an example of a clear ground code two systems a nature of deficiency code what the fault is vs an action taken code what the psco decided action taken codes belong to the regional mou regime paris tokyo mou thetis not to the imo procedures treat the numbers as regime dependent verify against the current re", "sibling_family": "", "via": "answer_title", "answer_title": "What is the PSC deficiency code, which code leads to a detainable deficiency, and can you give an example of a \"clear-ground code\"?", "cross_family": false } ] }, { "qid": "MUM-2023-06-0111-Q005", "text": "Intact stability", "family": "Ship Construction & Stability", "subtopic": "Static / Dynamic Stability/damage stability", "tid": "MUM-2023-06-0111", "tray": "review", "candidates": [ { "answer_id": "STAB-SD-A-001", "score": 0.8643038272857666, "sibling_score": 0.8643038272857666, "answer_score": null, "sibling_qid": "CHE-2026-05-0626-Q017", "sibling_text": "intact stability", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Intact stability and the 2008 IS Code criteria", "cross_family": false }, { "answer_id": "STAB-GZ-P01-001", "score": 0.8143332600593567, "sibling_score": 0.8143332600593567, "answer_score": null, "sibling_qid": "KOC-2024-05-2047-Q002", "sibling_text": "intact stability", "sibling_family": "", "via": "sibling", "answer_title": "Draw and explain the statical stability (GZ) curve", "cross_family": false }, { "answer_id": "SCS-DEF-001", "score": 0.4798119068145752, "sibling_score": null, "answer_score": 0.4798119068145752, "sibling_qid": "", "sibling_text": "1 what is intact stability stability of theundamaged watertightship the opposite case to damage stability which assumes flooding ability to return to the initial equilibrium upright after a heeling force is removed", "sibling_family": "", "via": "answer_title", "answer_title": "1. What is intact stability?", "cross_family": false } ] }, { "qid": "MUM-2023-06-1050-Q002", "text": "Types of engine", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2023-06-1050", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.7234609723091125, "sibling_score": 0.7234609723091125, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.7160386443138123, "sibling_score": 0.7160386443138123, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-001", "score": 0.4488496482372284, "sibling_score": null, "answer_score": 0.4488496482372284, "sibling_qid": "", "sibling_text": "1 turbocharger type main engine vs generator engine compressor is centrifugal in both cases only the turbine type differs large slow speed main engine axial flow turbine single stage constant pressure system", "sibling_family": "", "via": "answer_title", "answer_title": "1. Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "MUM-2023-06-1050-Q005", "text": "Beta ratio of filter", "family": "NDT & Material Testing", "subtopic": "Oil / Fuel Test", "tid": "MUM-2023-06-1050", "tray": "review", "candidates": [ { "answer_id": "LOF-359-001", "score": 0.813783586025238, "sibling_score": 0.813783586025238, "answer_score": 0.4799955129623413, "sibling_qid": "MUM-2026-06-3418-Q004", "sibling_text": "beta ratio of filter", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Beta Ratio / Beta Efficiency", "cross_family": false }, { "answer_id": "CTRL-TL-004", "score": 0.35709303319454194, "sibling_score": null, "answer_score": 0.35709303319454194, "sibling_qid": "", "sibling_text": "ratio control and where it is used on board ratio control hold flow b as a fixed multiple of measured flow a wild flow measured but not controlled controlled flow manipulated to keep the ratio", "sibling_family": "", "via": "answer_title", "answer_title": "Ratio control and where it is used on board", "cross_family": false }, { "answer_id": "PID-CTRL-003", "score": 0.32280980348587035, "sibling_score": null, "answer_score": 0.32280980348587035, "sibling_qid": "", "sibling_text": "proportional gain and proportional band gain change in output divided by change in input error dimensionless when both are in percent of range proportional band is the percent of input span needed to stroke the output from 0 to 100", "sibling_family": "", "via": "answer_title", "answer_title": "Proportional gain and proportional band", "cross_family": false } ] }, { "qid": "MUM-2023-06-1389-Q003", "text": "Boiler remote gauge not working troubleshooting", "family": "Boilers - Operations & Firing", "subtopic": "Boiler Operations", "tid": "MUM-2023-06-1389", "tray": "review", "candidates": [ { "answer_id": "LWL-006", "score": 0.7670362591743469, "sibling_score": 0.7670362591743469, "answer_score": 0.5380962193012238, "sibling_qid": "KOL-2025-05-3783-Q003", "sibling_text": "in boiler both gauge glass is wrong due to some reason what is your course of action just said stop the boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "On watch you find no water in the boiler gauge glass. What are your checks and immediate actions? What if both gauge glasses read wrong?", "cross_family": false }, { "answer_id": "BLR-BSP-001", "score": 0.7217822074890137, "sibling_score": 0.7217822074890137, "answer_score": null, "sibling_qid": "MUM-2025-10-0983-Q006", "sibling_text": "boiler panting reason and action as 2e how will you calibrate remote level gauge of boiler location of stuffing box full working angle encoder types absolute encoder", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler panting (combustion pulsation): causes, symptoms, and your actions as 2/E", "cross_family": false }, { "answer_id": "DP-TX-005", "score": 0.7212678790092468, "sibling_score": 0.7212678790092468, "answer_score": null, "sibling_qid": "MUM-2026-04-1007-Q010", "sibling_text": "how will you calibrate remote level gauge of boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "DP transmitter calibration, testing, isolation/renewal and precautions", "cross_family": false } ] }, { "qid": "MUM-2023-06-1390-Q004", "text": "Hv system advantages", "family": "", "subtopic": "High Voltage System", "tid": "MUM-2023-06-1390", "tray": "review", "candidates": [ { "answer_id": "HV-SYS-P02-001", "score": 0.7532192468643188, "sibling_score": 0.7532192468643188, "answer_score": null, "sibling_qid": "KOC-2024-05-1359-Q004", "sibling_text": "hv system advantages", "sibling_family": "", "via": "sibling", "answer_title": "Why high voltage is used onboard ships", "cross_family": false }, { "answer_id": "HV-SYS-P03-001", "score": 0.6778798699378967, "sibling_score": 0.6778798699378967, "answer_score": 0.40675028860569, "sibling_qid": "KOC-2026-05-0049-Q012", "sibling_text": "hv system advantage and disadvantage", "sibling_family": "", "via": "sibling", "answer_title": "What are the advantages and disadvantages of a high-voltage ship electrical system?", "cross_family": false }, { "answer_id": "HV-SYS-P04-001", "score": 0.46879756450653076, "sibling_score": null, "answer_score": 0.46879756450653076, "sibling_qid": "", "sibling_text": "hv sys p04 001 hv hazards advantages and safeties", "sibling_family": "", "via": "answer_title", "answer_title": "HV-SYS-P04-001 - HV hazards, advantages and safeties", "cross_family": false } ] }, { "qid": "MUM-2023-06-1390-Q005", "text": "Hv system neutral earth system purpose", "family": "", "subtopic": "High Voltage System", "tid": "MUM-2023-06-1390", "tray": "review", "candidates": [ { "answer_id": "NER-HV-P04-002", "score": 0.7289248704910278, "sibling_score": 0.7289248704910278, "answer_score": null, "sibling_qid": "KOL-2025-08-2847-Q010", "sibling_text": "system for neutral earth for high voltage value of ner in high voltage", "sibling_family": "", "via": "sibling", "answer_title": "How the NER value is selected/calculated, and its construction and material", "cross_family": false }, { "answer_id": "EARTH-NEU-02A-001", "score": 0.7067460417747498, "sibling_score": 0.7067460417747498, "answer_score": 0.535115709900856, "sibling_qid": "KOC-2021-08-1145-Q002", "sibling_text": "why hv systems earthed neutral system", "sibling_family": "", "via": "sibling", "answer_title": "Earthed (neutral-earth) system — what it is, why we use it, pros and cons", "cross_family": false }, { "answer_id": "ENR-P02B-001", "score": 0.6990786790847778, "sibling_score": 0.6990786790847778, "answer_score": null, "sibling_qid": "KOL-2021-09-2495-Q002", "sibling_text": "why hv system neutral is erthed", "sibling_family": "", "via": "sibling", "answer_title": "Ship’s earthing / distribution system — insulated LV neutral, earthed (Class-approved) HV neutral", "cross_family": false } ] }, { "qid": "MUM-2023-06-1392-Q002", "text": "Last vessel", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2023-06-1392", "tray": "review", "candidates": [ { "answer_id": "CLASS-NOT-001", "score": 0.7417287230491638, "sibling_score": 0.7417287230491638, "answer_score": null, "sibling_qid": "MUM-2026-06-3643-Q002", "sibling_text": "notation of your last vessel", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "What is class notation, and how would you explain the notation written for your ship?", "cross_family": false }, { "answer_id": "CHEM-PA-011", "score": 0.6562963128089905, "sibling_score": 0.6562963128089905, "answer_score": null, "sibling_qid": "MUM-2026-03-2938-Q002", "sibling_text": "which vessel", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "What ‘en route’ means for Annex II discharge", "cross_family": false }, { "answer_id": "ALT-GEN-P02-001", "score": 0.6310546398162842, "sibling_score": 0.6310546398162842, "answer_score": null, "sibling_qid": "MUM-2026-09-3974-Q008", "sibling_text": "define last vessel power generation system", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Alternator/generator specifications, ratings and ship electrical supply details", "cross_family": false } ] }, { "qid": "MUM-2023-06-1392-Q006", "text": "How to report incident.What is root cause analysis,How to close report.", "family": "Surveys - Statutory", "subtopic": "Audit (Internal/External)", "tid": "MUM-2023-06-1392", "tray": "new", "candidates": [ { "answer_id": "RCA-INC-001", "score": 0.47135937213897705, "sibling_score": 0.47135937213897705, "answer_score": 0.43146684765815735, "sibling_qid": "KOL-2023-05-0746-Q004", "sibling_text": "reporting procedure of accidents and incidents in sms internal", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "RCA-INC-01 — Reporting procedure for an accident or incident on board under ISM / SMS", "cross_family": true }, { "answer_id": "RCA-INC-004", "score": 0.4513896107673645, "sibling_score": 0.4513896107673645, "answer_score": 0.38917516767978666, "sibling_qid": "KOC-2024-12-0487-Q016", "sibling_text": "how to report collision", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "RCA-INC-04 — Action in case of an accident on board, and how to report a collision", "cross_family": true }, { "answer_id": "HULL-DD-003", "score": 0.4440765678882599, "sibling_score": 0.4440765678882599, "answer_score": null, "sibling_qid": "KOC-2021-05-1755-Q011", "sibling_text": "hull breach and what actions taken to report to company", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "3. Side-shell hole or hull breach at the waterline: emergency action and repair", "cross_family": true } ] }, { "qid": "MUM-2023-06-1392-Q009", "text": "Fore peak tank arrangements.", "family": "", "subtopic": "Peak Tank Construction", "tid": "MUM-2023-06-1392", "tray": "review", "candidates": [ { "answer_id": "PPS-230-006", "score": 0.6962192058563232, "sibling_score": 0.6962192058563232, "answer_score": null, "sibling_qid": "KOL-2025-09-1065-Q005", "sibling_text": "fore peak tank construction panting pounding arrangement", "sibling_family": "", "via": "sibling", "answer_title": "Fore-end / fore-peak structure: draw and describe", "cross_family": false }, { "answer_id": "SOLAS12-BC-E-001", "score": 0.5605889558792114, "sibling_score": 0.5605889558792114, "answer_score": null, "sibling_qid": "KOL-2021-09-0554-Q002", "sibling_text": "water ingress alarm requirement what arrangement in fore peak tank for water ingress could not answer this one", "sibling_family": "", "via": "sibling", "answer_title": "Water ingress detection & alarm system (WIDAS) — SOLAS XII/12", "cross_family": false }, { "answer_id": "BSBH-420-002", "score": 0.5407123565673828, "sibling_score": 0.5407123565673828, "answer_score": 0.4612938791513443, "sibling_qid": "MUM-2026-06-3359-Q004", "sibling_text": "forepeak construction", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Fore-end / forepeak construction forward of the collision bulkhead — members and cross-section", "cross_family": false } ] }, { "qid": "MUM-2023-06-2173-Q001", "text": "Asked abt type of ship sailed Company Engine done Told MCC only", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "MUM-2023-06-2173", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.726803719997406, "sibling_score": 0.726803719997406, "answer_score": null, "sibling_qid": "MUM-2026-05-3248-Q001", "sibling_text": "introduction sea time company pre sea ship type engine type me", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.7089935541152954, "sibling_score": 0.7089935541152954, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q001", "sibling_text": "type of ship sailed and engines details", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "MCC-MEB-P01-001", "score": 0.6965926289558411, "sibling_score": 0.6965926289558411, "answer_score": null, "sibling_qid": "MUM-2026-06-3596-Q002", "sibling_text": "what type of engine mcc", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "MC-C (\"Compact\") engine — design and the main constructional differences from MC", "cross_family": false } ] }, { "qid": "MUM-2023-06-2174-Q002", "text": "AC plant working, Capacity control", "family": "Refrigeration & AC", "subtopic": "Cooling Capacity / Psychrometrics / Humidity Control", "tid": "MUM-2023-06-2174", "tray": "review", "candidates": [ { "answer_id": "CAP-CTRL-001", "score": 0.7696073651313782, "sibling_score": 0.7696073651313782, "answer_score": 0.5490284860134125, "sibling_qid": "MUM-2023-06-1389-Q004", "sibling_text": "capacity control on ac comp", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "CG-001 · Capacity control in an AC / refrigeration compressor — why and how", "cross_family": false }, { "answer_id": "CCSC-314-002", "score": 0.7409890294075012, "sibling_score": 0.7409890294075012, "answer_score": 0.5312383979558944, "sibling_qid": "MUM-2026-07-3817-Q012", "sibling_text": "ac capacity control", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Compressor capacity control and the capacity controller", "cross_family": false }, { "answer_id": "REEF-COMP-007", "score": 0.534420245885849, "sibling_score": null, "answer_score": 0.534420245885849, "sibling_qid": "", "sibling_text": "capacity control and performance methods and improving the plant under seemp cylinder unloading suction valve lift by oil pressure solenoid the main marine reciprocating method loads unloads cylinder banks to match demand needs oil pressure on off cycling thermostat lp cut out on small plant hot gas bypass variable speed drive multiple compressor sequencing slide valve on screw compressors", "sibling_family": "", "via": "answer_title", "answer_title": "Capacity control and performance — methods, and improving the plant under SEEMP", "cross_family": false } ] }, { "qid": "MUM-2023-06-2176-Q002", "text": "engine worked on", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2023-06-2176", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.7119874954223633, "sibling_score": 0.7119874954223633, "answer_score": null, "sibling_qid": "KOL-2026-05-4244-Q002", "sibling_text": "engines you have worked on", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "MIP-264-003", "score": 0.6820028424263, "sibling_score": 0.6820028424263, "answer_score": null, "sibling_qid": "MUM-2026-01-1248-Q002", "sibling_text": "engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Calculate engine power: IHP and BHP, and where each is measured", "cross_family": false }, { "answer_id": "MCC-MEB-P01-001", "score": 0.6657590866088867, "sibling_score": 0.6657590866088867, "answer_score": null, "sibling_qid": "MUM-2026-09-3997-Q002", "sibling_text": "type of engine worked me mcc me b and rta", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "MC-C (\"Compact\") engine — design and the main constructional differences from MC", "cross_family": false } ] }, { "qid": "MUM-2023-06-2176-Q005", "text": "how to check if soot blowing effectively done or not", "family": "Boilers - Operations & Firing", "subtopic": "Soot Blower / Economiser Fire", "tid": "MUM-2023-06-2176", "tray": "review", "candidates": [ { "answer_id": "BFS-257-010", "score": 0.752688467502594, "sibling_score": 0.752688467502594, "answer_score": 0.6060852110385895, "sibling_qid": "MUM-2025-11-2474-Q003", "sibling_text": "soot blowing done efficiently how do u know", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "How to confirm soot blowing has been carried out effectively", "cross_family": false }, { "answer_id": "BFS-257-008", "score": 0.5647498965263367, "sibling_score": 0.5647498965263367, "answer_score": 0.41367792487144467, "sibling_qid": "MUM-2025-05-0277-Q021", "sibling_text": "soot blowing procedure", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler / EGB soot-blowing — procedure, precautions, sequence", "cross_family": false }, { "answer_id": "BLR-OPS-013", "score": 0.44440358281135556, "sibling_score": null, "answer_score": 0.44440358281135556, "sibling_qid": "", "sibling_text": "how do you check boiler performance uptake exhaust gas temperature fouling and heat loss indicator flue gas analysis o2 co2 co smoke combustion quality and air fuel ratio", "sibling_family": "", "via": "answer_title", "answer_title": "How do you check boiler performance?", "cross_family": false } ] }, { "qid": "MUM-2023-06-2177-Q001", "text": "AE lube oil level decreased suddenly , reason?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE vs ME Differences", "tid": "MUM-2023-06-2177", "tray": "review", "candidates": [ { "answer_id": "PURIF-172-004", "score": 0.7209160327911377, "sibling_score": 0.7209160327911377, "answer_score": null, "sibling_qid": "MUM-2024-11-2779-Q004", "sibling_text": "ae lub oil level going down one fine morning reasons wants to hear purifier leaked", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Overflow, leakage & water-in-oil troubleshooting", "cross_family": true }, { "answer_id": "AE-LOLOSS-003", "score": 0.6839775443077087, "sibling_score": 0.6839775443077087, "answer_score": 0.5513666272163391, "sibling_qid": "MUM-2026-02-1257-Q003", "sibling_text": "lube oil level decreasing in auxiliary engine sump reasons", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Auxiliary engine sump/crankcase level decreases during operation — reasons", "cross_family": true }, { "answer_id": "AEDEC-291-008", "score": 0.6268170475959778, "sibling_score": 0.6268170475959778, "answer_score": null, "sibling_qid": "MUM-2026-03-0999-Q008", "sibling_text": "ae lub oil consumption increased after overhauling reason and cross questions", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "8. Post-decarb abnormal running — overspeed, RPM, air-start, LO", "cross_family": false } ] }, { "qid": "MUM-2023-06-2178-Q003", "text": "Boiler safety valve setting", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2023-06-2178", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-001", "score": 0.864810049533844, "sibling_score": 0.864810049533844, "answer_score": null, "sibling_qid": "CHE-2026-04-0500-Q005", "sibling_text": "boiler safety valve setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.823114275932312, "sibling_score": 0.823114275932312, "answer_score": null, "sibling_qid": "MUM-2026-03-2935-Q013", "sibling_text": "boiler safety valve setting in presence of surveyor after survey", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.8128049373626709, "sibling_score": 0.8128049373626709, "answer_score": null, "sibling_qid": "KOC-2026-05-0034-Q010", "sibling_text": "boiler safety valve types and how safety valve is set complete procedures", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "MUM-2023-06-2178-Q004", "text": "AC not taking full load", "family": "Refrigeration & AC", "subtopic": "Capacity Control / Unloader", "tid": "MUM-2023-06-2178", "tray": "new", "candidates": [ { "answer_id": "CAP-CTRL-001", "score": 0.6359928250312805, "sibling_score": 0.6359928250312805, "answer_score": 0.4775572597980499, "sibling_qid": "MUM-2023-06-1389-Q004", "sibling_text": "capacity control on ac comp", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "CG-001 · Capacity control in an AC / refrigeration compressor — why and how", "cross_family": false }, { "answer_id": "CAP-CTRL-004", "score": 0.6264979839324951, "sibling_score": 0.6264979839324951, "answer_score": null, "sibling_qid": "MUM-2025-05-1497-Q005", "sibling_text": "capacity control of ac not working and alot more cnt recollect got function 3 repeat function 5", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "CG-004 · Actions when the capacity control / unloader is not working", "cross_family": false }, { "answer_id": "REEF-COMP-009", "score": 0.6110077500343323, "sibling_score": 0.6110077500343323, "answer_score": 0.43581123054027554, "sibling_qid": "MUM-2025-09-2834-Q004", "sibling_text": "3 ac compressor not going above stage 1", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Confirming a reefer/AC (MAC) compressor runs well on rounds — high current, sluggish, won't-load faults", "cross_family": false } ] }, { "qid": "MUM-2023-06-2730-Q002", "text": "Bulk carrier defination", "family": "SOLAS - General (HOLD)", "subtopic": "Solas Chapter 12 - Bulk", "tid": "MUM-2023-06-2730", "tray": "review", "candidates": [ { "answer_id": "SOLAS12-BC-A-001", "score": 0.8332979679107666, "sibling_score": 0.8332979679107666, "answer_score": 0.5795345157384872, "sibling_qid": "MUM-2026-06-3626-Q002", "sibling_text": "define bulk carrier", "sibling_family": "SOLAS - General (HOLD)", "via": "sibling", "answer_title": "SOLAS definition and scope of a bulk carrier", "cross_family": false }, { "answer_id": "SOLAS-XII-BC-002", "score": 0.7096783518791199, "sibling_score": 0.7096783518791199, "answer_score": null, "sibling_qid": "KOC-2026-09-2208-Q005", "sibling_text": "bulk carrier as per solas", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Explain SOLAS Chapter XII — the additional safety measures for bulk carriers", "cross_family": true }, { "answer_id": "BC-IMSBC-002", "score": 0.5294515818357467, "sibling_score": null, "answer_score": 0.5294515818357467, "sibling_qid": "", "sibling_text": "2 bulk carrier construction and structural design single deck engine aft large holds wide hatch openings sized for grab discharge topside upper wing tanks hopper lower wing tanks double bottom ballast capacity and self trimming hold geometry", "sibling_family": "", "via": "answer_title", "answer_title": "2. Bulk carrier construction and structural design", "cross_family": false } ] }, { "qid": "MUM-2023-06-2730-Q003", "text": "Bulk carrier construction", "family": "SOLAS - General (HOLD)", "subtopic": "Solas Chapter 12 - Bulk", "tid": "MUM-2023-06-2730", "tray": "review", "candidates": [ { "answer_id": "SOLAS12-BC-F-002", "score": 0.8244331479072571, "sibling_score": 0.8244331479072571, "answer_score": null, "sibling_qid": "MUM-2026-09-3867-Q002", "sibling_text": "bulk carrier construction", "sibling_family": "SOLAS - General (HOLD)", "via": "sibling", "answer_title": "Constructional features & structural peculiarity (incl. vs tanker holds)", "cross_family": false }, { "answer_id": "SOLAS12-BC-A-001", "score": 0.722762405872345, "sibling_score": 0.722762405872345, "answer_score": null, "sibling_qid": "MUM-2026-06-3626-Q002", "sibling_text": "define bulk carrier", "sibling_family": "SOLAS - General (HOLD)", "via": "sibling", "answer_title": "SOLAS definition and scope of a bulk carrier", "cross_family": false }, { "answer_id": "SOLAS12-BC-F-003", "score": 0.6923757791519165, "sibling_score": 0.6923757791519165, "answer_score": 0.5580441355705261, "sibling_qid": "KOC-2026-03-0882-Q003", "sibling_text": "bulk carrier cross section and all ship construction terms", "sibling_family": "", "via": "sibling", "answer_title": "Bulk-carrier midship cross-section — draw & explain", "cross_family": false } ] }, { "qid": "MUM-2023-06-2730-Q005", "text": "In dry dock what you check on rudder ?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "MUM-2023-06-2730", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.8370838165283203, "sibling_score": 0.8370838165283203, "answer_score": 0.5837648034095764, "sibling_qid": "MUM-2026-07-3733-Q009", "sibling_text": "checks in rudder in dry dock", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "DUS-P5-05", "score": 0.830934464931488, "sibling_score": 0.830934464931488, "answer_score": 0.6058837711811066, "sibling_qid": "MUM-2026-05-2994-Q006", "sibling_text": "rudder check in dry dock", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Rudder checks and rudder-blade tightness/leak test in drydock", "cross_family": false }, { "answer_id": "DDHSC-003", "score": 0.5814669907093047, "sibling_score": null, "answer_score": 0.5814669907093047, "sibling_qid": "", "sibling_text": "what checks do you carry out on the hull propeller and rudder in drydock including jumping clearance hull shell plating cracks coating weld seams thickness gauging areas propeller erosion pitting cavitation cracks dye penetrant cone cap tight rope guard propeller drop wear", "sibling_family": "", "via": "answer_title", "answer_title": "What checks do you carry out on the hull, propeller and rudder in drydock, including jumping clearance?", "cross_family": false } ] }, { "qid": "MUM-2023-06-2730-Q007", "text": "fuel oil tank inspection and entry u have to sign entry permit as per 2nd engineer what u will check", "family": "Risk & Safety Management", "subtopic": "Enclosed Space Entry", "tid": "MUM-2023-06-2730", "tray": "review", "candidates": [ { "answer_id": "ESE-P01-004", "score": 0.7868931293487549, "sibling_score": 0.7868931293487549, "answer_score": 0.6209607541561126, "sibling_qid": "MUM-2023-03-0095-Q004", "sibling_text": "fuel oil tank entry as 2nd engg procedure 6 risk assestment procedure carried out for entry to fuel tank", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "Fuel-oil, settling, bunker or double-bottom tank entry and inspection", "cross_family": false }, { "answer_id": "RISK-RA-D-003", "score": 0.7629019618034363, "sibling_score": 0.7629019618034363, "answer_score": null, "sibling_qid": "MUM-2026-04-0913-Q005", "sibling_text": "bunker tank entry as a second engineer how u plan he needs tk hear risk assessment and types of gases presnt types of gas detectors used limits", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ESE-P01-005", "score": 0.7530651688575745, "sibling_score": 0.7530651688575745, "answer_score": null, "sibling_qid": "KOL-2018-03-3962-Q003", "sibling_text": "after discharging u have to do tank inspection tell all the steps and checks to be made before entry", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "Cargo tank, pump-room, ballast tank or duct-keel entry preparation", "cross_family": false } ] }, { "qid": "MUM-2023-06-2730-Q009", "text": "bulk carrier all alarms in cago hold ballast tank and values", "family": "SOLAS - General (HOLD)", "subtopic": "Solas Chapter 12 - Bulk", "tid": "MUM-2023-06-2730", "tray": "new", "candidates": [ { "answer_id": "BC-IMSBC-002", "score": 0.6283758282661438, "sibling_score": 0.6283758282661438, "answer_score": null, "sibling_qid": "MUM-2022-10-0061-Q002", "sibling_text": "req for bilges alarms in bulk carriers", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "2. Bulk carrier construction and structural design", "cross_family": true }, { "answer_id": "SOLAS12-BC-E-001", "score": 0.6222386956214905, "sibling_score": 0.6222386956214905, "answer_score": 0.5256167769432067, "sibling_qid": "KOL-2026-05-0057-Q011", "sibling_text": "bulk carriers cargo hold alarm requirements", "sibling_family": "", "via": "sibling", "answer_title": "Water ingress detection & alarm system (WIDAS) — SOLAS XII/12", "cross_family": false }, { "answer_id": "WIDAS-SMK-002", "score": 0.6090403199195862, "sibling_score": 0.6090403199195862, "answer_score": null, "sibling_qid": "KOL-2017-03-0077-Q001", "sibling_text": "what are the different alarms fitted for water ingress in cargo hold cofferdam fore peak tank", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "WIDAS purpose and the three protected spaces", "cross_family": true } ] }, { "qid": "MUM-2023-06-2730-Q010", "text": "Got fn3 pass", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2023-06-2730", "tray": "new", "candidates": [ { "answer_id": "SG-055-B-001", "score": 0.5067508220672607, "sibling_score": 0.5067508220672607, "answer_score": null, "sibling_qid": "KOL-2026-01-1156-Q006", "sibling_text": "deadman handle results passed fn3", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Emergency steering operation and the deadman handle", "cross_family": true }, { "answer_id": "SEEMP-123-B-001", "score": 0.48248612880706787, "sibling_score": 0.48248612880706787, "answer_score": null, "sibling_qid": "KOC-2026-03-0880-Q002", "sibling_text": "function 3 contents", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SEEMP Part III — the ship's operational carbon-intensity (CII) plan", "cross_family": true }, { "answer_id": "ISM-2E-A-004", "score": 0.4637902081012726, "sibling_score": 0.4637902081012726, "answer_score": null, "sibling_qid": "KOC-2025-03-0931-Q017", "sibling_text": "works done as 3e", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Shipboard jobs, machineries and maintenance areas under the Second Engineer", "cross_family": true } ] }, { "qid": "MUM-2023-06-2733-Q005", "text": "Water tube boiler leaking...how will you know which tube", "family": "Boilers - Operations & Firing", "subtopic": "Boiler Operations", "tid": "MUM-2023-06-2733", "tray": "review", "candidates": [ { "answer_id": "BLR-TUBE-P02-001", "score": 0.7601866722106934, "sibling_score": 0.7601866722106934, "answer_score": 0.6117728978395461, "sibling_qid": "KOL-2022-05-3539-Q002", "sibling_text": "boiler water tube leaking indications how to identify which tube and repair", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Identifying a boiler tube leak and finding the leaking tube", "cross_family": true }, { "answer_id": "BLR-TUBE-P02-002", "score": 0.7345872521400452, "sibling_score": 0.7345872521400452, "answer_score": 0.5530812978744507, "sibling_qid": "MUM-2025-07-2344-Q001", "sibling_text": "in boiler inspection from furnace you found tube is leaking and it s water tube boiler how will you proceed to find leaky tube and plug it", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Plugging a leaking boiler tube (temporary arrest)", "cross_family": true }, { "answer_id": "HYD-602-005", "score": 0.604142552614212, "sibling_score": null, "answer_score": 0.604142552614212, "sibling_qid": "", "sibling_text": "how do you find a leaking boiler tube during the test and how do you test the shell welding leaking tube signs water weeping from the expanded or welded tube end at the drum header or tubeplate or from a crack an unexplained steady pressure drop dry suspect areas and inspect only at the authorised stage from a safe position identify whether a leak is the tube to tubeplate joint the tube wall end o", "sibling_family": "", "via": "answer_title", "answer_title": "How do you find a leaking boiler tube during the test, and how do you test the shell welding?", "cross_family": false } ] }, { "qid": "MUM-2023-06-2733-Q009", "text": "Scav fire. what to do", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Scavenging / Scavenge Fire", "tid": "MUM-2023-06-2733", "tray": "new", "candidates": [ { "answer_id": "SCAV-323-P01-001", "score": 0.6316559910774231, "sibling_score": 0.6316559910774231, "answer_score": 0.4217828392982483, "sibling_qid": "KOC-2024-03-2043-Q007", "sibling_text": "scavenge fire actions", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Scavenge fire in the main engine — your actions", "cross_family": false }, { "answer_id": "SCAV-323-P01-005", "score": 0.6270480155944824, "sibling_score": 0.6270480155944824, "answer_score": null, "sibling_qid": "MUM-2026-09-3876-Q003", "sibling_text": "action after scavenge fire", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Post-fire checks before restarting and loading", "cross_family": false }, { "answer_id": "UPT-FIRE-003", "score": 0.3605922400951385, "sibling_score": null, "answer_score": 0.3605922400951385, "sibling_qid": "", "sibling_text": "fire in the exhaust gas boiler or economiser actions and instructions to the duty engineers same casualty located in the egb economiser order the watch inform bridge reduce load stop the me with the bridge if confirmed or worsening to remove exhaust heat and gas flow", "sibling_family": "", "via": "answer_title", "answer_title": "Fire in the exhaust gas boiler or economiser — actions and instructions to the duty engineers", "cross_family": false } ] }, { "qid": "MUM-2023-06-2734-Q003", "text": "Types of vessel", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2023-06-2734", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8044430613517761, "sibling_score": 0.8044430613517761, "answer_score": null, "sibling_qid": "MUM-2026-06-3384-Q001", "sibling_text": "type of vessel", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7624772191047668, "sibling_score": 0.7624772191047668, "answer_score": 0.5046769618988037, "sibling_qid": "KOC-2026-02-0833-Q005", "sibling_text": "types of ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.7600163817405701, "sibling_score": 0.7600163817405701, "answer_score": null, "sibling_qid": "CHE-2026-02-0481-Q001", "sibling_text": "type of vessels sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false } ] }, { "qid": "MUM-2023-06-2734-Q005", "text": "Said about water content and identification rectification", "family": "Electrical - 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Bulk Carriers", "via": "sibling", "answer_title": "7. Group A cargo — precautions and the moisture test", "cross_family": true } ] }, { "qid": "MUM-2023-06-2735-Q002", "text": "Strain Hardening and component used in ME", "family": "Materials & Metallurgy", "subtopic": "Shot Peening / Work Hardening / Forging / Spark Erosion", "tid": "MUM-2023-06-2735", "tray": "new", "candidates": [ { "answer_id": "HEAT-TRT-C-001", "score": 0.5014632344245911, "sibling_score": 0.5014632344245911, "answer_score": null, "sibling_qid": "KOL-2020-02-1526-Q003", "sibling_text": "hardening in which component nitriding", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Nitriding — process, gas and where it is used on board", "cross_family": true }, { "answer_id": "HEAT-TRT-C-002", "score": 0.46664193272590637, "sibling_score": 0.46664193272590637, "answer_score": null, "sibling_qid": "MUM-2023-09-2193-Q009", "sibling_text": "annealing normalizing induction hardening and where used on board and then result coc", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Induction hardening and flame hardening — principle and use", "cross_family": true }, { "answer_id": "HT-TCS-B-003", "score": 0.45101398229599, "sibling_score": 0.45101398229599, "answer_score": 0.40260020196437835, "sibling_qid": "KOL-2021-04-1584-Q009", "sibling_text": "what metal is best for hardening which steel is good for hardening few more question was there but all are from material and composition part only", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Hardening — purpose, suitable materials and components", "cross_family": true } ] }, { "qid": "MUM-2023-06-2735-Q003", "text": "type of bolt used in Rudder Stock", "family": "Steering Gear & Hydraulics", "subtopic": "Tiller / Rudder Stock", "tid": "MUM-2023-06-2735", "tray": "review", "candidates": [ { "answer_id": "TRS-002", "score": 0.6593655943870544, "sibling_score": 0.6593655943870544, "answer_score": null, "sibling_qid": "KOC-2026-02-1103-Q008", "sibling_text": "how rudder stock and carrier bearing is attached told 2 half fitted bolts x does bearing turn with rudder i told yes then he told that there are 2 types one turn with rudder other dont turn with rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "FB-COUP-001", "score": 0.5956347584724426, "sibling_score": 0.5956347584724426, "answer_score": 0.4443297147750854, "sibling_qid": "KOL-2019-05-3241-Q004", "sibling_text": "fitted bolt", "sibling_family": "2-Stroke - 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Lubrication & Bearings", "subtopic": "Main Bearing", "tid": "MUM-2023-06-2735", "tray": "review", "candidates": [ { "answer_id": "WMAT-170-005", "score": 0.653685986995697, "sibling_score": 0.653685986995697, "answer_score": 0.5658399492502212, "sibling_qid": "KOL-2024-03-1775-Q009", "sibling_text": "procedure of bedding of bearing all", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bearing bedding and seating / contact assessment", "cross_family": false }, { "answer_id": "BEB-C-003", "score": 0.6383323073387146, "sibling_score": 0.6383323073387146, "answer_score": null, "sibling_qid": "KOL-2019-07-1464-Q003", "sibling_text": "bedding of bottom end bearing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bedding / contact check of a bottom end bearing — and the use of blue", "cross_family": false }, { "answer_id": "MN-BRG-C-002", "score": 0.6356561183929443, "sibling_score": 0.6356561183929443, "answer_score": 0.5392355501651763, "sibling_qid": "KOL-2019-11-3286-Q001", "sibling_text": "bedding of bearing", "sibling_family": "2-Stroke - 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Lubrication, tribology & the types of lubrication", "cross_family": false }, { "answer_id": "CYL-LUB-A-001", "score": 0.779093325138092, "sibling_score": 0.779093325138092, "answer_score": 0.5320024609565734, "sibling_qid": "MUM-2026-05-3002-Q004S2", "sibling_text": "lubrication type of lubrication in liner", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Cylinder lubrication — how it is carried out and its purpose", "cross_family": false }, { "answer_id": "TC-OVHL-001", "score": 0.7633392214775085, "sibling_score": 0.7633392214775085, "answer_score": null, "sibling_qid": "MUM-2026-06-3354-Q010", "sibling_text": "tc lubrication methods", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main-engine turbocharger overhaul — procedure and post-overhaul checks", "cross_family": false } ] }, { "qid": "MUM-2023-06-2736-Q001S2", "text": "Steering gear regulation", "family": "Steering Gear & Hydraulics", "subtopic": "", "tid": "MUM-2023-06-2736", "tray": "review", "candidates": [ { "answer_id": "STG-055-C-002", "score": 0.8022541403770447, "sibling_score": 0.8022541403770447, "answer_score": null, "sibling_qid": "KOC-2024-09-0412-Q004", "sibling_text": "steering gear regulations", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "SOLAS steering-gear requirements, tests and drills", "cross_family": false }, { "answer_id": "SG-RAM-002", "score": 0.7397534847259521, "sibling_score": 0.7397534847259521, "answer_score": null, "sibling_qid": "KOL-2016-09-1236-Q004", "sibling_text": "2 ram steering gear regulations", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Which ships may use a two-ram steering gear, and what is the SOLAS basis?", "cross_family": false }, { "answer_id": "STEER-055-A-003", "score": 0.7301358580589294, "sibling_score": 0.7301358580589294, "answer_score": null, "sibling_qid": "KOL-2020-11-1559-Q008", "sibling_text": "steering gear floating lever", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Hunting gear, floating lever and buffer spring", "cross_family": false } ] }, { "qid": "MUM-2023-06-2736-Q001S5", "text": "Boiler safety valve material", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2023-06-2736", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.7533146739006042, "sibling_score": 0.7533146739006042, "answer_score": null, "sibling_qid": "CHE-2026-05-0625-Q002", "sibling_text": "boiler safety valve selection", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "SGB-212-011", "score": 0.7527729272842407, "sibling_score": 0.7527729272842407, "answer_score": 0.6179783701896667, "sibling_qid": "KOL-2026-01-2037-Q002", "sibling_text": "material of boiler steam stop valve", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Material for a boiler / main steam stop valve", "cross_family": true }, { "answer_id": "ACRV-005", "score": 0.7429363131523132, "sibling_score": 0.7429363131523132, "answer_score": null, "sibling_qid": "MUM-2026-06-3357-Q006", "sibling_text": "safety valve boiler types and construction boiler water", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": false } ] }, { "qid": "MUM-2023-06-2736-Q001S6S2", "text": "Caustic embitterment Carburizing Nitriding Where it is used in engine components ?", "family": "", "subtopic": "", "tid": "MUM-2023-06-2736", "tray": "review", "candidates": [ { "answer_id": "HEAT-TRT-C-001", "score": 0.6883258819580078, "sibling_score": 0.6883258819580078, "answer_score": 0.45982629656791685, "sibling_qid": "MUM-2026-09-3936-Q007", "sibling_text": "nitriding and where all done in engine part", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Nitriding — process, gas and where it is used on board", "cross_family": false }, { "answer_id": "HT-TCS-B-002", "score": 0.45056279897689816, "sibling_score": null, "answer_score": 0.45056279897689816, "sibling_qid": "", "sibling_text": "case surface hardening methods and engine components goal a very hard wear resistant case over a tougher shock absorbing core the point is the surface core property split notthat a through hardened part cannot be tough a quenched and tempered steel can be tough throughout case hardening gives a harder wear skin than you would want or could achieve across the whole section family a chemistry change", "sibling_family": "", "via": "answer_title", "answer_title": "Case & surface hardening — methods and engine components", "cross_family": false }, { "answer_id": "HEAT-TRT-C-002", "score": 0.423868978023529, "sibling_score": null, "answer_score": 0.423868978023529, "sibling_qid": "", "sibling_text": "induction hardening and flame hardening principle and use both heat the surface above the upper critical austenitising temperature then quench the opposite of nitriding induction high frequency ac in a coil induces eddy currents the steel s own resistance heats the surface in seconds", "sibling_family": "", "via": "answer_title", "answer_title": "Induction hardening and flame hardening — principle and use", "cross_family": false } ] }, { "qid": "MUM-2023-06-2737-Q001", "text": "oil hotwell 1st action He want to listen felt filter se absorb krna hai. Steam trap wghra kuch b nai sunna", "family": "2-Stroke - Operations & Casualty", "subtopic": "Oil Sheen / Hot Well", "tid": "MUM-2023-06-2737", "tray": "new", "candidates": [ { "answer_id": "CASC-COND-001", "score": 0.5798521041870117, "sibling_score": 0.5798521041870117, "answer_score": 0.4850131690502167, "sibling_qid": "MUM-2026-05-3258-Q008", "sibling_text": "oil in hot well causes and action any other method to find out leakage other than traditional method like from heater drain or steam trap in steam return line", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Oil found in the cascade tank, hotwell or observation tank — actions, tracing the source, and preventing ingress", "cross_family": true }, { "answer_id": "FLT-BF052-003", "score": 0.5632910132408142, "sibling_score": 0.5632910132408142, "answer_score": 0.4504026502370834, "sibling_qid": "KOL-2018-03-3125-Q002", "sibling_text": "hot filter cleaning procedure how to isolate it and cross questions", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How do you change over and clean a hot fuel filter, and how do you isolate it?", "cross_family": true }, { "answer_id": "STM-TRAP-004", "score": 0.5603821873664856, "sibling_score": 0.5603821873664856, "answer_score": null, "sibling_qid": "KOC-2026-09-2219-Q006", "sibling_text": "steam trap working", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "How to verify a steam trap is working correctly", "cross_family": true } ] }, { "qid": "MUM-2023-07-0112-Q001", "text": "Type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2023-07-0112", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8361091017723083, "sibling_score": 0.8361091017723083, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8013883233070374, "sibling_score": 0.8013883233070374, "answer_score": 0.5470469176769256, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8000956177711487, "sibling_score": 0.8000956177711487, "answer_score": 0.5211817562580109, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2023-07-0112-Q002", "text": "What is SOLAS definition of tanker ?", "family": "SOLAS - General (HOLD)", "subtopic": "Tanker Type", "tid": "MUM-2023-07-0112", "tray": "review", "candidates": [ { "answer_id": "COT-01", "score": 0.7334787845611572, "sibling_score": 0.7334787845611572, "answer_score": 0.5440530836582184, "sibling_qid": "KOC-2026-03-0865-Q004", "sibling_text": "oil tanker solas definition", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Oil-tanker types, definitions and cargo capability", "cross_family": true }, { "answer_id": "ODC-019", "score": 0.6349430084228516, "sibling_score": 0.6349430084228516, "answer_score": 0.5237490504980087, "sibling_qid": "CHE-2026-04-0518-Q001", "sibling_text": "define crude oil tanker as per annex where it is mentioned", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Annex I definitions — crude oil tanker and the terms around it", "cross_family": true }, { "answer_id": "SOLAS12-BC-A-001", "score": 0.6296154260635376, "sibling_score": 0.6296154260635376, "answer_score": 0.5329226195812226, "sibling_qid": "MUM-2026-06-3456-Q002", "sibling_text": "definition of bulk carrier as per solas", "sibling_family": "SOLAS - General (HOLD)", "via": "sibling", "answer_title": "SOLAS definition and scope of a bulk carrier", "cross_family": false } ] }, { "qid": "MUM-2023-07-0112-Q008", "text": "Intact and damage stability", "family": "SOLAS", "subtopic": "Damage Stability", "tid": "MUM-2023-07-0112", "tray": "review", "candidates": [ { "answer_id": "DS-049-P02-001", "score": 0.8295339941978455, "sibling_score": 0.8295339941978455, "answer_score": 0.4742255985736847, "sibling_qid": "KOC-2022-08-0082-Q009", "sibling_text": "intact and damage stability", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Difference between intact stability (static / dynamic) and damage stability criteria", "cross_family": false }, { "answer_id": "DAM-STAB-P03-001", "score": 0.8295339941978455, "sibling_score": 0.8295339941978455, "answer_score": 0.4934421807527542, "sibling_qid": "KOC-2025-10-0674-Q007", "sibling_text": "intact and damage stability", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Intact, static, dynamic and damage stability: difference and criteria", "cross_family": false }, { "answer_id": "DS-BASIC-P01-001", "score": 0.5223486483097076, "sibling_score": null, "answer_score": 0.5223486483097076, "sibling_qid": "", "sibling_text": "damage stability definition meaning and oral overview", "sibling_family": "", "via": "answer_title", "answer_title": "Damage stability: definition, meaning and oral overview", "cross_family": false } ] }, { "qid": "MUM-2023-07-0113-Q001", "text": "Lng ship construction and how tanks are supported..different types of tanks", "family": "Cargo Ops - Gas Carriers", "subtopic": "Cargo Tank Construction", "tid": "MUM-2023-07-0113", "tray": "review", "candidates": [ { "answer_id": "GC-TANK-001", "score": 0.7023242115974426, "sibling_score": 0.7023242115974426, "answer_score": 0.6114092826843261, "sibling_qid": "MUM-2025-09-1196-Q014", "sibling_text": "type of tanks for lng", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Main cargo containment and independent tank types on LPG and LNG carriers", "cross_family": false }, { "answer_id": "GC-TANK-005", "score": 0.6944717764854431, "sibling_score": 0.6944717764854431, "answer_score": 0.6183627575635909, "sibling_qid": "KOC-2021-07-0015-Q002", "sibling_text": "lng tank construction type material insulation fire fighting medium moss type tank advantages", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "LNG Moss-type cargo tank: construction and advantages", "cross_family": false }, { "answer_id": "GC-TANK-004", "score": 0.690345823764801, "sibling_score": 0.690345823764801, "answer_score": 0.5667493164539337, "sibling_qid": "KOL-2025-04-0931-Q007", "sibling_text": "cargo tank construction lpg carrier int", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Gas-carrier cargo tank construction: materials, insulation, fixing and tank safeties", "cross_family": false } ] }, { "qid": "MUM-2023-07-0113-Q003", "text": "Difference between lng nd lpg boiling point", "family": "Cargo Ops - Gas Carriers", "subtopic": "LPG / LNG", "tid": "MUM-2023-07-0113", "tray": "review", "candidates": [ { "answer_id": "LPG-LNG-001", "score": 0.7532716393470764, "sibling_score": 0.7532716393470764, "answer_score": 0.581945714354515, "sibling_qid": "KOL-2018-04-0166-Q003", "sibling_text": "lng properties difference between lng and lpg", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "LPG vs LNG – properties, carriage and comparison", "cross_family": false }, { "answer_id": "LPG-LNG-009", "score": 0.6555694937705994, "sibling_score": 0.6555694937705994, "answer_score": 0.5150262385606765, "sibling_qid": "MUM-2026-03-0852-Q016", "sibling_text": "lpg and lng", "sibling_family": "Cargo Ops - 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Stern tube bearings — number, size, fixing, clearance, weardown and high-temperature", "cross_family": false } ] }, { "qid": "MUM-2023-07-0115-Q002", "text": "SOPEP requirements", "family": "MARPOL - Annex I (Oil)", "subtopic": "SOPEP", "tid": "MUM-2023-07-0115", "tray": "new", "candidates": [ { "answer_id": "SOPEP-001", "score": 0.5236608982086182, "sibling_score": 0.5236608982086182, "answer_score": null, "sibling_qid": "MUM-2026-06-3597-Q002", "sibling_text": "what is sopep", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "SOPEP — Definition, Applicability and the Governing Regulation", "cross_family": false }, { "answer_id": "SOPEP-002", "score": 0.5190064907073975, "sibling_score": 0.5190064907073975, "answer_score": 0.31881495118141173, "sibling_qid": "KOC-2024-04-0335-Q001", "sibling_text": "sopep contents", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "SOPEP — Mandatory Contents, Appendices, Locker and Equipment", "cross_family": false }, { "answer_id": "ETA-567-001", "score": 0.5165072679519653, "sibling_score": 0.5165072679519653, "answer_score": null, "sibling_qid": "CHE-2021-06-0508-Q008", "sibling_text": "eta solas requirement", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Emergency towing arrangement — purpose, SOLAS requirement, standby and passing to the tug", "cross_family": true } ] }, { "qid": "MUM-2023-07-0115-Q004", "text": "Lifeboat Davit survey", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Lifeboat / Davit / LSA", "tid": "MUM-2023-07-0115", "tray": "review", "candidates": [ { "answer_id": "DRG-B-012", "score": 0.7806556820869446, "sibling_score": 0.7806556820869446, "answer_score": 0.5151103913784026, "sibling_qid": "KOL-2022-08-0667-Q003", "sibling_text": "lifeboat davit survey without lowering lifeboat", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Davit survey without lowering the boat", "cross_family": false }, { "answer_id": "LBT-TEST-B-005", "score": 0.6969436407089233, "sibling_score": 0.6969436407089233, "answer_score": null, "sibling_qid": "KOL-2026-04-3945-Q007", "sibling_text": "lifeboat davit checks", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Checks after the dynamic/overload load test", "cross_family": false }, { "answer_id": "LB-SURV-C-001", "score": 0.6820080876350403, "sibling_score": 0.6820080876350403, "answer_score": null, "sibling_qid": "KOL-2025-09-1071-Q006", "sibling_text": "life boat checks for survey", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Annual thorough examination / SEQ survey of the lifeboat — scope, by whom, certificate", "cross_family": false } ] }, { "qid": "MUM-2023-07-0116-Q001", "text": "Fore peak tank construction", "family": "", "subtopic": "Peak Tank Construction", "tid": "MUM-2023-07-0116", "tray": "review", "candidates": [ { "answer_id": "PPS-230-006", "score": 0.7376390695571899, "sibling_score": 0.7376390695571899, "answer_score": null, "sibling_qid": "MUM-2026-08-3829-Q005", "sibling_text": "forepeak tank construction", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Fore-end / fore-peak structure: draw and describe", "cross_family": false }, { "answer_id": "BSBH-420-002", "score": 0.642113208770752, "sibling_score": 0.642113208770752, "answer_score": 0.4927749872207641, "sibling_qid": "MUM-2026-06-3359-Q004", "sibling_text": "forepeak construction", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Fore-end / forepeak construction forward of the collision bulkhead — members and cross-section", "cross_family": false }, { "answer_id": "BCFS-002", "score": 0.5664355158805847, "sibling_score": 0.5664355158805847, "answer_score": null, "sibling_qid": "MUM-2024-09-1093-Q003", "sibling_text": "cascade tank construction", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "The cascade tank — purpose, location, construction, temperature control and abnormal steaming", "cross_family": false } ] }, { "qid": "MUM-2023-07-0116-Q002", "text": "Risk assessment", "family": "Risk & Safety Management", "subtopic": "Enclosed Space Entry", "tid": "MUM-2023-07-0116", "tray": "review", "candidates": [ { "answer_id": "RA-MGMT-B-001", "score": 0.7981410622596741, "sibling_score": 0.7981410622596741, "answer_score": null, "sibling_qid": "KOL-2022-09-3563-Q003", "sibling_text": "risc assessment", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "How is a shipboard risk assessment prepared and carried out?", "cross_family": false }, { "answer_id": "RA-MGMT-A-001", "score": 0.7894574999809265, "sibling_score": 0.7894574999809265, "answer_score": 0.5666805148124695, "sibling_qid": "MUM-2026-08-3829-Q002", "sibling_text": "risk assessment", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "What is risk, what is hazard, and what is risk assessment?", "cross_family": false }, { "answer_id": "LVC-577-001", "score": 0.5822328269481659, "sibling_score": null, "answer_score": 0.5822328269481659, "sibling_qid": "", "sibling_text": "define likelihood and consequence in risk assessment risk has two elements likelihood and consequence the matrix rating commonly combines them by multiplying where the sms uses that method likelihood the chance probability the harm occurs how likely how often", "sibling_family": "", "via": "answer_title", "answer_title": "Define likelihood and consequence in risk assessment", "cross_family": false } ] }, { "qid": "MUM-2023-07-0117-Q002", "text": "Why MLC 2006 came.", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2023-07-0117", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-007", "score": 0.4446120858192444, "sibling_score": 0.4446120858192444, "answer_score": null, "sibling_qid": "MUM-2026-02-0734-Q007", "sibling_text": "mlc 2006 detainable deficiency", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false }, { "answer_id": "DUS-P1-03", "score": 0.3521907925605774, "sibling_score": 0.3521907925605774, "answer_score": null, "sibling_qid": "KOL-2023-04-0735-Q004", "sibling_text": "docking plan 5 mlc 2006", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Docking plan — content, purpose and how the 2E uses it", "cross_family": true }, { "answer_id": "MLC-WRH-B-002", "score": 0.34726932644844055, "sibling_score": 0.34726932644844055, "answer_score": null, "sibling_qid": "MUM-2022-07-0027-Q005", "sibling_text": "mlc 2006 wages rest hours", "sibling_family": "MLC", "via": "sibling", "answer_title": "Work and rest hours under MLC — the criteria, the weekly limit, the intervals", "cross_family": false } ] }, { "qid": "MUM-2023-07-0117-Q003", "text": "Risk assessment.", "family": "Risk & Safety Management", "subtopic": "Enclosed Space Entry", "tid": "MUM-2023-07-0117", "tray": "review", "candidates": [ { "answer_id": "RA-MGMT-B-001", "score": 0.7981410622596741, "sibling_score": 0.7981410622596741, "answer_score": null, "sibling_qid": "KOL-2022-09-3563-Q003", "sibling_text": "risc assessment", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "How is a shipboard risk assessment prepared and carried out?", "cross_family": false }, { "answer_id": "RA-MGMT-A-001", "score": 0.7894574999809265, "sibling_score": 0.7894574999809265, "answer_score": 0.5666805148124695, "sibling_qid": "MUM-2026-08-3829-Q002", "sibling_text": "risk assessment", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "What is risk, what is hazard, and what is risk assessment?", "cross_family": false }, { "answer_id": "LVC-577-001", "score": 0.5822328269481659, "sibling_score": null, "answer_score": 0.5822328269481659, "sibling_qid": "", "sibling_text": "define likelihood and consequence in risk assessment risk has two elements likelihood and consequence the matrix rating commonly combines them by multiplying where the sms uses that method likelihood the chance probability the harm occurs how likely how often", "sibling_family": "", "via": "answer_title", "answer_title": "Define likelihood and consequence in risk assessment", "cross_family": false } ] }, { "qid": "MUM-2023-07-1051-Q004", "text": "Angle encoder", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Angle Encoder", "tid": "MUM-2023-07-1051", "tray": "review", "candidates": [ { "answer_id": "ANG-ENC-003", "score": 0.8341319561004639, "sibling_score": 0.8341319561004639, "answer_score": 0.4851591318845749, "sibling_qid": "KOC-2022-07-0079-Q023", "sibling_text": "angle encoder working", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Working principle: sensing crank angle, speed and direction", "cross_family": false }, { "answer_id": "ANG-ENC-001", "score": 0.8278650045394897, "sibling_score": 0.8278650045394897, "answer_score": 0.5001119375228882, "sibling_qid": "MUM-2023-11-1066-Q008", "sibling_text": "angle encoder function", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Purpose of the angle encoder on an electronically controlled main engine", "cross_family": true }, { "answer_id": "ETP-344-P03-013", "score": 0.4267754167318344, "sibling_score": null, "answer_score": 0.4267754167318344, "sibling_qid": "", "sibling_text": "me engine speed tacho sensors how many and why man b w me two redundant tacho systems system a and system b one per ecu control side each system is an angle encoder on the crankshaft fore end the standard arrangement also has a reference sensor on the turning wheel flywheel", "sibling_family": "", "via": "answer_title", "answer_title": "ME engine speed / tacho sensors — how many and why", "cross_family": false } ] }, { "qid": "MUM-2023-07-1051-Q005", "text": "Beta ratio of filter", "family": "NDT & Material Testing", "subtopic": "Oil / Fuel Test", "tid": "MUM-2023-07-1051", "tray": "review", "candidates": [ { "answer_id": "LOF-359-001", "score": 0.8138689398765564, "sibling_score": 0.8138689398765564, "answer_score": 0.4797356069087982, "sibling_qid": "MUM-2026-07-3719-Q014", "sibling_text": "beta ratio of filter", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Beta Ratio / Beta Efficiency", "cross_family": false }, { "answer_id": "CTRL-TL-004", "score": 0.35714339315891264, "sibling_score": null, "answer_score": 0.35714339315891264, "sibling_qid": "", "sibling_text": "ratio control and where it is used on board ratio control hold flow b as a fixed multiple of measured flow a wild flow measured but not controlled controlled flow manipulated to keep the ratio", "sibling_family": "", "via": "answer_title", "answer_title": "Ratio control and where it is used on board", "cross_family": false }, { "answer_id": "PID-CTRL-003", "score": 0.32288724333047863, "sibling_score": null, "answer_score": 0.32288724333047863, "sibling_qid": "", "sibling_text": "proportional gain and proportional band gain change in output divided by change in input error dimensionless when both are in percent of range proportional band is the percent of input span needed to stroke the output from 0 to 100", "sibling_family": "", "via": "answer_title", "answer_title": "Proportional gain and proportional band", "cross_family": false } ] }, { "qid": "MUM-2023-07-1051-Q006", "text": "Pickling and pulverisation", "family": "Materials & Metallurgy", "subtopic": "Galvanising / Pickling / Surface Treatment", "tid": "MUM-2023-07-1051", "tray": "review", "candidates": [ { "answer_id": "WELD-B-008", "score": 0.6707521677017212, "sibling_score": 0.6707521677017212, "answer_score": 0.335758039355278, "sibling_qid": "MUM-2026-06-3523-Q007", "sibling_text": "pickling", "sibling_family": "Materials & Metallurgy", "via": "sibling", "answer_title": "Pickling after welding — what it is and what it removes", "cross_family": false }, { "answer_id": "T038-P01-002", "score": 0.6017492413520813, "sibling_score": 0.6017492413520813, "answer_score": null, "sibling_qid": "MUM-2026-06-3550-Q001", "sibling_text": "pickling and passivation", "sibling_family": "Materials & Metallurgy", "via": "sibling", "answer_title": "HV system onboard — layout, components, applications, earthing & protection", "cross_family": false }, { "answer_id": "HT-TCS-B-002", "score": 0.4294944107532501, "sibling_score": 0.4294944107532501, "answer_score": null, "sibling_qid": "KOL-2020-01-3313-Q004", "sibling_text": "carbonizing", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Case & surface hardening — methods and engine components", "cross_family": true } ] }, { "qid": "MUM-2023-07-1051-Q010", "text": "Risk assessment", "family": "Risk & Safety Management", "subtopic": "Enclosed Space Entry", "tid": "MUM-2023-07-1051", "tray": "review", "candidates": [ { "answer_id": "RA-MGMT-B-001", "score": 0.7981410622596741, "sibling_score": 0.7981410622596741, "answer_score": null, "sibling_qid": "KOL-2022-09-3563-Q003", "sibling_text": "risc assessment", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "How is a shipboard risk assessment prepared and carried out?", "cross_family": false }, { "answer_id": "RA-MGMT-A-001", "score": 0.7894574999809265, "sibling_score": 0.7894574999809265, "answer_score": 0.5666805148124695, "sibling_qid": "MUM-2026-08-3829-Q002", "sibling_text": "risk assessment", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "What is risk, what is hazard, and what is risk assessment?", "cross_family": false }, { "answer_id": "LVC-577-001", "score": 0.5822328269481659, "sibling_score": null, "answer_score": 0.5822328269481659, "sibling_qid": "", "sibling_text": "define likelihood and consequence in risk assessment risk has two elements likelihood and consequence the matrix rating commonly combines them by multiplying where the sms uses that method likelihood the chance probability the harm occurs how likely how often", "sibling_family": "", "via": "answer_title", "answer_title": "Define likelihood and consequence in risk assessment", "cross_family": false } ] }, { "qid": "MUM-2023-07-1052-Q001", "text": "Type of ships sailed on", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2023-07-1052", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.7930871844291687, "sibling_score": 0.7930871844291687, "answer_score": null, "sibling_qid": "MUM-2026-02-1272-Q002", "sibling_text": "type of ships sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7783145308494568, "sibling_score": 0.7783145308494568, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.49510279297828674, "sibling_score": null, "answer_score": 0.49510279297828674, "sibling_qid": "", "sibling_text": "type a and type b ships how form and cargo set the freeboard", "sibling_family": "", "via": "answer_title", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "MUM-2023-07-1052-Q002", "text": "Emulsification of lub oil,actions as 2nd eng", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Viscosity Index", "tid": "MUM-2023-07-1052", "tray": "review", "candidates": [ { "answer_id": "LO-TEST-P02-003", "score": 0.6976884007453918, "sibling_score": 0.6976884007453918, "answer_score": null, "sibling_qid": "MUM-2026-09-3878-Q006", "sibling_text": "emulsification of lube oil and actions to be taken", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Abnormal LO condition: sump rise, colour, high temperature/pressure, lacquer, deterioration", "cross_family": false }, { "answer_id": "LO-TEST-P02-002", "score": 0.5698092579841614, "sibling_score": 0.5698092579841614, "answer_score": null, "sibling_qid": "MUM-2025-06-0972-Q004", "sibling_text": "me sump oil with full of water ur action as 2nd eng also u have less time", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "LO contamination by water, fuel, microbes or solids: sources, indications, actions", "cross_family": false }, { "answer_id": "LO-TEST-P02-001", "score": 0.551791787147522, "sibling_score": 0.551791787147522, "answer_score": 0.38607863783836366, "sibling_qid": "KOL-2020-10-1551-Q006", "sibling_text": "we use for that how will you come to know that lub oil dispersency characteristics has gone", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Lube-oil additives; detergency, dispersancy, lubricity and friction modifiers", "cross_family": false } ] }, { "qid": "MUM-2023-07-1393-Q001", "text": "What is High voltage system, safeties, vcb and acb difference Who is permitted to operate HV gears in ecr", "family": "", "subtopic": "High Voltage System", "tid": "MUM-2023-07-1393", "tray": "new", "candidates": [ { "answer_id": "CBKR-H-001", "score": 0.6447815895080566, "sibling_score": 0.6447815895080566, "answer_score": 0.549530667066574, "sibling_qid": "KOC-2024-12-1454-Q011", "sibling_text": "cb used in hv working of vcb", "sibling_family": "", "via": "sibling", "answer_title": "How do VCB and SF6 breakers work in a high-voltage system, and why are they used instead of an ACB?", "cross_family": false }, { "answer_id": "CB033-C-001", "score": 0.5969811677932739, "sibling_score": 0.5969811677932739, "answer_score": null, "sibling_qid": "MUM-2025-08-1584-Q001", "sibling_text": "types of cb acb vcb where to use vcb maintenance of acb safeties in acb", "sibling_family": "", "via": "sibling", "answer_title": "How do you carry out maintenance and testing on an ACB / main circuit breaker?", "cross_family": false }, { "answer_id": "CB-ACBVCBSF6-E-001", "score": 0.5954706072807312, "sibling_score": 0.5954706072807312, "answer_score": null, "sibling_qid": "MUM-2026-02-1936-Q006", "sibling_text": "type of circuit breaker used for hv i told vcb", "sibling_family": "", "via": "sibling", "answer_title": "What are the common types of circuit breakers used onboard and where are ACB, MCB, MCCB, VCB and SF6 breakers applied?", "cross_family": false } ] }, { "qid": "MUM-2023-07-1393-Q006", "text": "ACB maintenance", "family": "", "subtopic": "Circuit Breakers (ACB / VCB / SF6)", "tid": "MUM-2023-07-1393", "tray": "review", "candidates": [ { "answer_id": "CB033-C-001", "score": 0.7556977272033691, "sibling_score": 0.7556977272033691, "answer_score": 0.40621056556701657, "sibling_qid": "KOL-2025-09-2876-Q004", "sibling_text": "maintenance on acb", "sibling_family": "", "via": "sibling", "answer_title": "How do you carry out maintenance and testing on an ACB / main circuit breaker?", "cross_family": false }, { "answer_id": "ALPHA-LUB-A-003", "score": 0.3767831206321716, "sibling_score": null, "answer_score": 0.3767831206321716, "sibling_qid": "", "sibling_text": "alpha lubricator overhaul checks and local maintenance", "sibling_family": "", "via": "answer_title", "answer_title": "Alpha lubricator overhaul, checks and local maintenance", "cross_family": false }, { "answer_id": "MSB-ESB-B-001", "score": 0.3735213756561279, "sibling_score": null, "answer_score": 0.3735213756561279, "sibling_qid": "", "sibling_text": "routine maintenance health check of the msb", "sibling_family": "", "via": "answer_title", "answer_title": "Routine maintenance & health check of the MSB", "cross_family": false } ] }, { "qid": "MUM-2023-07-1395-Q002", "text": "Alternator safety.", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator Protection", "tid": "MUM-2023-07-1395", "tray": "review", "candidates": [ { "answer_id": "ALT-GEN-P01-001", "score": 0.7953287959098816, "sibling_score": 0.7953287959098816, "answer_score": 0.5255777657032012, "sibling_qid": "MUM-2026-09-3990-Q001", "sibling_text": "alternator safety", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Alternator/generator safeties and protection trips", "cross_family": false }, { "answer_id": "ALT-MTN-B-001", "score": 0.5342584252357483, "sibling_score": null, "answer_score": 0.5342584252357483, "sibling_qid": "", "sibling_text": "routine onboard alternator maintenance checks clean air path dry low pressure air blow through cooler and filters clear keep winding temperature in band insulation resistance to earth on a megger trended over time investigate a falling trend do not wait for the alarm", "sibling_family": "", "via": "answer_title", "answer_title": "Routine onboard alternator maintenance checks", "cross_family": false }, { "answer_id": "ALT-MAINT-A-001", "score": 0.5310807824134827, "sibling_score": null, "answer_score": 0.5310807824134827, "sibling_qid": "", "sibling_text": "routine maintenance care of a ship s alternator make safe first permit to work isolate rack out and lock off the breaker immobilise the prime mover the set is engine driven a blackout dead bus auto start can crank it prove dead discharge the windings the space heater supply is separate it stays live after the alternator breaker is open isolate it independently before touching the windings", "sibling_family": "", "via": "answer_title", "answer_title": "Routine maintenance & care of a ship’s alternator", "cross_family": false } ] }, { "qid": "MUM-2023-07-1395-Q003", "text": "Steering gear motor safety.", "family": "Electrical - Motors & Starters", "subtopic": "STEERING GEAR MOTOR-ELECTRICAL", "tid": "MUM-2023-07-1395", "tray": "review", "candidates": [ { "answer_id": "SGM-ELEC-001", "score": 0.8191611766815186, "sibling_score": 0.8191611766815186, "answer_score": 0.5610006809234619, "sibling_qid": "MUM-2026-06-3456-Q019", "sibling_text": "steering gear motor safeties", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What are the safeties, alarms and trips on the steering gear motor as per SOLAS — and how do you activate the safematic?", "cross_family": false }, { "answer_id": "SGM-ELEC-002", "score": 0.8189722895622253, "sibling_score": 0.8189722895622253, "answer_score": null, "sibling_qid": "MUM-2026-05-3190-Q008", "sibling_text": "steering gear motor safeties", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What type of motor is the steering gear motor, how does it differ from other engine-room motors, and how do you order one?", "cross_family": false }, { "answer_id": "SG-055-B-002", "score": 0.8177167773246765, "sibling_score": 0.8177167773246765, "answer_score": 0.582449060678482, "sibling_qid": "KOC-2026-04-1748-Q002", "sibling_text": "steering gear motor safeties", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Steering-gear alarms, trips and electrical / hydraulic safeties", "cross_family": false } ] }, { "qid": "MUM-2023-07-2179-Q001", "text": "remaining..will try to clear next attempt", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2023-07-2179", "tray": "new", "candidates": [ { "answer_id": "CHAIN-TENS-C-001", "score": 0.4535439908504486, "sibling_score": 0.4535439908504486, "answer_score": null, "sibling_qid": "KOL-2025-07-3835-Q003", "sibling_text": "chain tightening remaining forgot will update later", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main-engine chain drive — how you know it is slack, and how you check and tighten it", "cross_family": true }, { "answer_id": "BCL-592-003", "score": 0.4200424253940582, "sibling_score": 0.4200424253940582, "answer_score": null, "sibling_qid": "KOC-2022-07-0966-Q016", "sibling_text": "what happens if more less clearances", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What are the effects of bearing clearance being too high or too low?", "cross_family": true }, { "answer_id": "ETP-344-P03-006", "score": 0.41278645396232605, "sibling_score": 0.41278645396232605, "answer_score": null, "sibling_qid": "KOC-2025-07-1925-Q015", "sibling_text": "after burning reasons need more", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Afterburning — causes, indications, remedies", "cross_family": true } ] }, { "qid": "MUM-2023-07-2738-Q003S2", "text": "After decarb what inspection in crankcase ?", "family": "", "subtopic": "", "tid": "MUM-2023-07-2738", "tray": "review", "candidates": [ { "answer_id": "CRKC-INSP-001", "score": 0.7280563712120056, "sibling_score": 0.7280563712120056, "answer_score": null, "sibling_qid": "MUM-2026-03-2600-Q004", "sibling_text": "after ae decarb crankcase inspection what will u check explain minimum 5 point", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Routine main-engine crankcase inspection — checks as 2/E", "cross_family": false }, { "answer_id": "RUN-CLR-001", "score": 0.6967754364013672, "sibling_score": 0.6967754364013672, "answer_score": null, "sibling_qid": "MUM-2026-02-2578-Q001", "sibling_text": "after m e decarb what all clearances you will take from crankcase", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Running clearances taken from the crankcase after main-engine decarbonisation", "cross_family": false }, { "answer_id": "PRING-CLR-A-002", "score": 0.6874631643295288, "sibling_score": 0.6874631643295288, "answer_score": null, "sibling_qid": "KOL-2020-09-3346-Q002", "sibling_text": "piston ring calibration and checks after me decarb", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston-ring clearances and calibration — butt, axial, radial, wear limits", "cross_family": false } ] }, { "qid": "MUM-2023-07-2738-Q003S3", "text": "Cat fines ? How to tackle ?", "family": "", "subtopic": "", "tid": "MUM-2023-07-2738", "tray": "new", "candidates": [ { "answer_id": "BCAT-001", "score": 0.6456289291381836, "sibling_score": 0.6456289291381836, "answer_score": null, "sibling_qid": "MUM-2026-06-3417-Q008", "sibling_text": "cat fines", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "BCAT-01. What are cat fines in bunker fuel, and what do they do to the engine?", "cross_family": false }, { "answer_id": "CATF-438-002", "score": 0.5942939519882202, "sibling_score": 0.5942939519882202, "answer_score": 0.3254570454359054, "sibling_qid": "MUM-2022-10-2708-Q010", "sibling_text": "cat fines what where how to remove", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How are cat fines removed or reduced onboard before the fuel is used?", "cross_family": false }, { "answer_id": "BCAT-003", "score": 0.5939618349075317, "sibling_score": 0.5939618349075317, "answer_score": null, "sibling_qid": "MUM-2026-09-3878-Q005", "sibling_text": "high cat fines in bunker what to do", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "BCAT-03. Cat fines: what limits apply in fuel analysis and at the engine inlet, and how are they reduced?", "cross_family": false } ] }, { "qid": "MUM-2023-07-2738-Q003S4", "text": "How do u inspect and what checks for liner damage ?", "family": "", "subtopic": "", "tid": "MUM-2023-07-2738", "tray": "new", "candidates": [ { "answer_id": "CYL-LINER-P01-003", "score": 0.6476845741271973, "sibling_score": 0.6476845741271973, "answer_score": null, "sibling_qid": "KOL-2022-08-1923-Q001", "sibling_text": "u have removed liner what all checks u will carry out routine inspections wear rate in liner", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "From the readings: wear, wear rate, units and renewal limits", "cross_family": false }, { "answer_id": "CYL-LINER-P03-007", "score": 0.6464211940765381, "sibling_score": 0.6464211940765381, "answer_score": 0.4538188189268112, "sibling_qid": "KOL-2019-07-1874-Q001", "sibling_text": "liner inspection", "sibling_family": "2-Stroke - 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"answer_title": "Taking the thrust clearance (without removing the block)", "cross_family": false }, { "answer_id": "TB-BEAR-001", "score": 0.5584069907665252, "sibling_score": null, "answer_score": 0.5584069907665252, "sibling_qid": "", "sibling_text": "thrust bearing clearance measurement procedure value engine stopped and secured while fitting and reading the gauge movement between ahead and astern positions only by the maker approved method do not combine an engaged turning gear with engine starting dial gauge mounted rigidly on a fixed bracket probe on the thrust collar end face or crankshaft flange", "sibling_family": "", "via": "answer_title", "answer_title": "Thrust bearing clearance — measurement procedure & value", "cross_family": false } ] }, { "qid": "MUM-2023-08-1055-Q003", "text": "Why back pressure valve where and why ,", "family": "Refrigeration & AC", "subtopic": "Back Pressure Valve", "tid": "MUM-2023-08-1055", "tray": "review", "candidates": [ { "answer_id": 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Explain the ovality and trueness checks — how many readings, at which positions, with what instrument, and the permissible limit.", "cross_family": false }, { "answer_id": "CRB-014", "score": 0.6986625790596008, "sibling_score": 0.6986625790596008, "answer_score": 0.5178774535655976, "sibling_qid": "KOL-2023-08-3632-Q002", "sibling_text": "ovality check of con rod where oversized and undersized bearings r used", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you check connecting rod ovality, and where are oversize and undersize bearings used?", "cross_family": false } ] }, { "qid": "MUM-2023-08-1397-Q004", "text": "How electricity is produced in brushless generator", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator / Generator", "tid": "MUM-2023-08-1397", "tray": "review", "candidates": [ { "answer_id": "BRUSHALT-A-001", "score": 0.7305090427398682, "sibling_score": 0.7305090427398682, "answer_score": 0.543593156337738, "sibling_qid": "MUM-2026-09-3921-Q001", "sibling_text": "brushless generator parts n working", "sibling_family": "Electrical - 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High Voltage", "via": "sibling", "answer_title": "HV vs LV onboard — systems, equipment and motor terminal boxes", "cross_family": false } ] }, { "qid": "MUM-2023-08-1398-Q004", "text": "HV advantages", "family": "", "subtopic": "High Voltage System", "tid": "MUM-2023-08-1398", "tray": "review", "candidates": [ { "answer_id": "HV-SYS-P02-001", "score": 0.7507968544960022, "sibling_score": 0.7507968544960022, "answer_score": null, "sibling_qid": "KOL-2020-02-2372-Q001", "sibling_text": "hv advantages", "sibling_family": "", "via": "sibling", "answer_title": "Why high voltage is used onboard ships", "cross_family": false }, { "answer_id": "HV-SYS-P03-001", "score": 0.6831358671188354, "sibling_score": 0.6831358671188354, "answer_score": 0.32166236639022827, "sibling_qid": "KOC-2025-01-1473-Q005", "sibling_text": "advantage disv of hv", "sibling_family": "", "via": "sibling", "answer_title": "What are the advantages and disadvantages of a high-voltage ship electrical system?", "cross_family": false }, { "answer_id": "HV-SYS-P04-001", "score": 0.415591299533844, "sibling_score": null, "answer_score": 0.415591299533844, "sibling_qid": "", "sibling_text": "hv sys p04 001 hv hazards advantages and safeties", "sibling_family": "", "via": "answer_title", "answer_title": "HV-SYS-P04-001 - HV hazards, advantages and safeties", "cross_family": false } ] }, { "qid": "MUM-2023-08-2183-Q002", "text": "WELDING DIFFERENT TYPES OF WELDING", "family": "Workshop & Welding", "subtopic": "Welding / Brazing / Soldering", "tid": "MUM-2023-08-2183", "tray": "review", "candidates": [ { "answer_id": "WELD-PATM-008", "score": 0.8197395205497742, "sibling_score": 0.8197395205497742, "answer_score": 0.6382142603397369, "sibling_qid": "KOL-2023-06-3615-Q005", "sibling_text": "types of welding", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding process types and classification", "cross_family": false }, { "answer_id": "WELD-B-010", "score": 0.8127649426460266, "sibling_score": 0.8127649426460266, "answer_score": 0.5663651317358017, "sibling_qid": "MUM-2022-10-2152-Q001", "sibling_text": "slot welding and some other weldings", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Weld joint types and selection — butt, lap, slot and others", "cross_family": false }, { "answer_id": "WELD-PATM-005", "score": 0.805374801158905, "sibling_score": 0.805374801158905, "answer_score": null, "sibling_qid": "CHE-2026-09-3919-Q007", "sibling_text": "mig and tig welding", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "TIG vs MIG – differences, uses, advantages", "cross_family": false } ] }, { "qid": "MUM-2023-08-2183-Q003", "text": "WHAT IS 3.4 ON CHEMICAL DRUM,BROWN COLOUR INDICATION ON CHEMICAL DRUM WHAT IS THE MEANING", "family": "Other Conventions", "subtopic": "IMDG Code", "tid": "MUM-2023-08-2183", "tray": "new", "candidates": [ { "answer_id": "AFS-309-004", "score": 0.5902836918830872, "sibling_score": 0.5902836918830872, "answer_score": null, "sibling_qid": "KOC-2024-12-0488-Q007", "sibling_text": "four types of paint as per afs told 3", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Anti-fouling paint types, biocide-free coatings, and the harm from TBT and cybutryne", "cross_family": false }, { "answer_id": "BWT-B-001", "score": 0.517636775970459, "sibling_score": 0.517636775970459, "answer_score": null, "sibling_qid": "KOL-2018-04-1858-Q003", "sibling_text": "3 boiler water p alk t alk why done what it shows", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Why are P, T and M alkalinity tests done in boiler water, and how are the results read?", "cross_family": true }, { "answer_id": "SBD-001", "score": 0.5067694783210754, "sibling_score": 0.5067694783210754, "answer_score": null, "sibling_qid": "KOL-2019-10-3284-Q004", "sibling_text": "4 oil in guage glass in boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "You find oil in the boiler gauge glass — causes, how you identify the source, and your actions as 2/E (including if manoeuvring). What is carryover?", "cross_family": true } ] }, { "qid": "MUM-2023-08-2183-Q004", "text": "COLD PLUG ON FILTER", "family": "Drydock & Underwater Surveys", "subtopic": "Bottom Plug / Bedrock", "tid": "MUM-2023-08-2183", "tray": "review", "candidates": [ { "answer_id": "FQCC-583-A-008", "score": 0.683189332485199, "sibling_score": 0.683189332485199, "answer_score": 0.3639663070440292, "sibling_qid": "MUM-2026-06-3367-Q006", "sibling_text": "cold filter plug point", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Cold-flow properties — cloud point, pour point, CFPP", "cross_family": false }, { "answer_id": "FLT-BF052-003", "score": 0.524197518825531, "sibling_score": 0.524197518825531, "answer_score": 0.38502535969018936, "sibling_qid": "KOL-2018-05-1373-Q008", "sibling_text": "how to change over a hot filter", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How do you change over and clean a hot fuel filter, and how do you isolate it?", "cross_family": true }, { "answer_id": "FQCC-583-B-004", "score": 0.5068209171295166, "sibling_score": 0.5068209171295166, "answer_score": null, "sibling_qid": "MUM-2025-11-2487-Q007", "sibling_text": "filter getting choked with new fuel want to hear cfpp", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Cloud point, pour point, CFPP and floc point — and the filter choking on the new fuel", "cross_family": true } ] }, { "qid": "MUM-2023-08-2183-Q006", "text": "3G WELDING", "family": "Workshop & Welding", "subtopic": "Welding / Brazing / Soldering", "tid": "MUM-2023-08-2183", "tray": "new", "candidates": [ { "answer_id": "PIPEFAB-011", "score": 0.6270186901092529, "sibling_score": 0.6270186901092529, "answer_score": null, "sibling_qid": "CHE-2026-05-0643-Q011", "sibling_text": "gi welding procedure", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Explain the repair procedure for a GI or GRP pipe, including welding a GI pipe", "cross_family": false }, { "answer_id": "WELD-PATM-003", "score": 0.6032264828681946, "sibling_score": 0.6032264828681946, "answer_score": 0.42356669157743454, "sibling_qid": "KOL-2026-07-4256-Q004", "sibling_text": "tig welding adv", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "TIG welding – process, shielding gas, advantages, uses", "cross_family": false }, { "answer_id": "WELD-B-009", "score": 0.5960416793823242, "sibling_score": 0.5960416793823242, "answer_score": 0.4040620595216751, "sibling_qid": "MUM-2026-06-3617-Q006", "sibling_text": "spot welding tig mig", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Special welding processes — submerged arc, spot, friction, forge, MMA and alloy welding", "cross_family": false } ] }, { "qid": "MUM-2023-08-2184-Q004", "text": "How to lock rudder in place. More questions will add soon. Simple questions followed by cross questions. All asked by external Anil Deswal Sir. Oral timing 10 minutes only .", "family": "Steering Gear & Hydraulics", "subtopic": "Tiller / Rudder Stock", "tid": "MUM-2023-08-2184", "tray": "review", "candidates": [ { "answer_id": "STEER-055-A-004", "score": 0.7449489235877991, "sibling_score": 0.7449489235877991, "answer_score": null, "sibling_qid": "CHE-2026-01-0240-Q016", "sibling_text": "how will you hydraulically lock rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Hydraulic faults — air, sluggish response, locking, leakage", "cross_family": false }, { "answer_id": "TRS-002", "score": 0.6822981238365173, "sibling_score": 0.6822981238365173, "answer_score": null, "sibling_qid": "MUM-2024-12-1098-Q005", "sibling_text": "how coupling for rudder is done", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "RVSG-213-004", "score": 0.6707030534744263, "sibling_score": 0.6707030534744263, "answer_score": null, "sibling_qid": "KOC-2024-07-0997-Q007", "sibling_text": "steering gear construction how rotor vanes are fitted to rotor how top and bottom sealing is done i said 2 o rings and gland packing at top he moved on to next material of rotor i said cast steel he moved on to next question also local maneuvering he wants to hear press the directional valve and look at the rudder angle indicator", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Redundancy, emergency steering, local operation & bypass", "cross_family": false } ] }, { "qid": "MUM-2023-08-2186-Q004", "text": "WELDING of cast iron difficulties", "family": "Workshop & Welding", "subtopic": "Cast Iron Welding", "tid": "MUM-2023-08-2186", "tray": "review", "candidates": [ { "answer_id": "WELD-B-001", "score": 0.8359069228172302, "sibling_score": 0.8359069228172302, "answer_score": 0.5157124817371368, "sibling_qid": "MUM-2026-07-3727-Q007", "sibling_text": "cast iron welding difficulties", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding & crack-repair of aluminium and cast iron, including metal stitching", "cross_family": false }, { "answer_id": "LH-ELEC-006", "score": 0.5132656157016754, "sibling_score": null, "answer_score": 0.5132656157016754, "sibling_qid": "", "sibling_text": "6 how would you approach a cast iron valve repair when the examiner probes welding and low hydrogen electrodes first response replace or fit a sound same size valve a welded cast iron repair is a stop gap not equal to new if welding cast iron not a plain mild steel low hydrogen rod the high carbon makes a hard brittle cracking weld", "sibling_family": "", "via": "answer_title", "answer_title": "6. How would you approach a cast-iron valve repair when the examiner probes welding and low-hydrogen electrodes?", "cross_family": false }, { "answer_id": "WELD-PATM-011", "score": 0.4574364274740219, "sibling_score": null, "answer_score": 0.4574364274740219, "sibling_qid": "", "sibling_text": "arc welding defects porosity trapped gas lost shield damp rods dirty oily surface slag inclusion slag not chipped cleaned between passes", "sibling_family": "", "via": "answer_title", "answer_title": "Arc welding defects", "cross_family": false } ] }, { "qid": "MUM-2023-08-2187-Q001", "text": "Asked to introduce myself, what all papers cleared, no of attempt.", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2023-08-2187", "tray": "new", "candidates": [ { "answer_id": "STAB-SD-C-002", "score": 0.48031526803970337, "sibling_score": 0.48031526803970337, "answer_score": null, "sibling_qid": "MUM-2026-03-2946-Q028", "sibling_text": "i failed too but i accepted my mistakes i worked on my mistakes and cleared almost everything in 7 months without any classes all i did was self study", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "Static stability — what it is and what it quantifies", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.45376986265182495, "sibling_score": 0.45376986265182495, "answer_score": null, "sibling_qid": "MUM-2026-03-0866-Q001", "sibling_text": "coc attempt internal sirish sir external vishwanathan iyer sir started with what function you are applying how many ships type of ships you did after class 4 pre sea from where how many written cleared what about other functions", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": true }, { "answer_id": "CERT-LIST-P01-001", "score": 0.4494361877441406, "sibling_score": 0.4494361877441406, "answer_score": null, "sibling_qid": "KOC-2024-02-0300-Q006", "sibling_text": "statutory certificate told all 17 but still said i missed some important certificates", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "List the statutory certificates carried onboard a ship.", "cross_family": true } ] }, { "qid": "MUM-2023-08-2187-Q004", "text": "Problems faced with cast iron welding. what precautions to take.\nWhat electrode do we use.", "family": "Workshop & Welding", "subtopic": "Cast Iron Welding", "tid": "MUM-2023-08-2187", "tray": "review", "candidates": [ { "answer_id": "WELD-B-001", "score": 0.7760496735572815, "sibling_score": 0.7760496735572815, "answer_score": 0.5081026047468186, "sibling_qid": "KOL-2026-09-4305-Q006", "sibling_text": "cast iron welding precaution", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding & crack-repair of aluminium and cast iron, including metal stitching", "cross_family": false }, { "answer_id": "WELD-B-006", "score": 0.5367310285568238, "sibling_score": null, "answer_score": 0.5367310285568238, "sibling_qid": "", "sibling_text": "welding electrodes selection storage and handling selection match electrode to parent metal to welding position to available current type ac dc and size to plate thickness low hydrogen basic coated electrodes are moisture sensitive absorbed moisture becomes hydrogen in the arc causes porosity and hydrogen cold cracking", "sibling_family": "", "via": "answer_title", "answer_title": "Welding electrodes — selection, storage and handling", "cross_family": false }, { "answer_id": "LH-ELEC-006", "score": 0.5284983396530151, "sibling_score": null, "answer_score": 0.5284983396530151, "sibling_qid": "", "sibling_text": "6 how would you approach a cast iron valve repair when the examiner probes welding and low hydrogen electrodes first response replace or fit a sound same size valve a welded cast iron repair is a stop gap not equal to new if welding cast iron not a plain mild steel low hydrogen rod the high carbon makes a hard brittle cracking weld", "sibling_family": "", "via": "answer_title", "answer_title": "6. How would you approach a cast-iron valve repair when the examiner probes welding and low-hydrogen electrodes?", "cross_family": false } ] }, { "qid": "MUM-2023-08-2187-Q005", "text": "What is hot lay up and cold lay up of a ship (couldn't answer)......searched on google. very easy.", "family": "Boilers - Safety & Survey", "subtopic": "Wet/Dry Layup", "tid": "MUM-2023-08-2187", "tray": "new", "candidates": [ { "answer_id": "SHELL-PLT-B-001", "score": 0.5549237132072449, "sibling_score": 0.5549237132072449, "answer_score": null, "sibling_qid": "KOL-2019-10-0330-Q002", "sibling_text": "how ship is made describe him frm keel plate to sheer strake with deck plating difinition of deck plating deck line", "sibling_family": "", "via": "sibling", "answer_title": "Sheer strake — location, why strengthened, deck-edge / gunwale connection", "cross_family": false }, { "answer_id": "DUS-P1-02", "score": 0.5518890619277954, "sibling_score": 0.5518890619277954, "answer_score": 0.4563339799642563, "sibling_qid": "KOL-2021-10-3994-Q004", "sibling_text": "drydock which all engine room drawing u will keep ready", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Plans, drawings and special tools kept ready for drydock — engine-department view", "cross_family": true }, { "answer_id": "WBS-C-003", "score": 0.5504546165466309, "sibling_score": 0.5504546165466309, "answer_score": null, "sibling_qid": "MUM-2017-01-2126-Q002", "sibling_text": "procedure for hot work when vessel sailing", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Shipboard hot work — the permit, the designated area, and work near fuel tanks", "cross_family": true } ] }, { "qid": "MUM-2023-08-2187-Q006", "text": "Chemical drum in steering gear room has red sticker on it and number 3.4 written ?What does both indicate ? Red sticker means ? KEY ANS : Number 3 means Flammable, flammable liquid according to UN hazard classification. ", "family": "Other Conventions", "subtopic": "Chemical Label and Hazard Class", "tid": "MUM-2023-08-2187", "tray": "new", "candidates": [ { "answer_id": "IGC-GAS-008", "score": 0.6434816122055054, "sibling_score": 0.6434816122055054, "answer_score": null, "sibling_qid": "KOC-2023-10-0224-Q004", "sibling_text": "4 fire potential on lng", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Cargo hazards and properties of liquefied gases", "cross_family": true }, { "answer_id": "FLD-601-001", "score": 0.6387994885444641, "sibling_score": 0.6387994885444641, "answer_score": null, "sibling_qid": "KOC-2025-10-0692-Q008", "sibling_text": "hc flammability diagram explanation", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Draw and explain the hydrocarbon flammability diagram. What is its purpose and functional requirement, why is the line tapered, and how do you mark a point on it?", "cross_family": true }, { "answer_id": "IGC-IGF-002", "score": 0.6346606016159058, "sibling_score": 0.6346606016159058, "answer_score": null, "sibling_qid": "KOC-2023-10-0223-Q004", "sibling_text": "igf code nd for what type of fuels it applies", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "IGF Code — scope, ships and fuels it applies to", "cross_family": false } ] }, { "qid": "MUM-2023-08-2187-Q007", "text": "Shell and tube heat exchanger overhaul (double pass type)...what all checks as a 2nd engineer......told everything. he said one\nimportant thing is missing.......moved on to the next question. then I\nremembered that it is double pass. so sealing between 1st and 2nd\npass should be checkes...no short cycling. he said correct.", "family": "Heat Exchangers & Coolers", "subtopic": "Shell and Tube", "tid": "MUM-2023-08-2187", "tray": "review", "candidates": [ { "answer_id": "ACJCW-008", "score": 0.7359457612037659, "sibling_score": 0.7359457612037659, "answer_score": 0.5402904242277146, "sibling_qid": "KOL-2022-04-1916-Q003", "sibling_text": "shell and tube type cooler leak detection check accepted tell tale hole check what is inside the tube and what is outside the tube why expansion arrangement sealing material no of seals", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Shell-and-tube cooler: leak detection, tube-side flow, expansion and sealing", "cross_family": false }, { "answer_id": "PTHE-003", "score": 0.7351343035697937, "sibling_score": 0.7351343035697937, "answer_score": null, "sibling_qid": "MUM-2022-12-1037-Q019", "sibling_text": "checks on plate typeheat exchanger while opening", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Opening, cleaning, overhaul, plate alignment and reassembly", "cross_family": false }, { "answer_id": "STHX-005", "score": 0.7129824161529541, "sibling_score": 0.7129824161529541, "answer_score": null, "sibling_qid": "KOL-2022-09-3563-Q004", "sibling_text": "shell and tube type heat exchanger tube leak detection in place how to operate the heat exchanger when tube is leaking when do you renew the tube", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "STHX-05 — Damaged-tube removal, tube renewal, retubing tools and procedure", "cross_family": false } ] }, { "qid": "MUM-2023-08-2187-Q009", "text": "Water came inside ME lube oil sump tank. how will you come to\nknow....I said emulsion.....then sounding increase. from sighr\nglass we will see color of lube oil change. he asked what about\npurifier.......I said since water content is high. interface will move\ninside. correct.", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Lube Oil Emulsification", "tid": "MUM-2023-08-2187", "tray": "review", "candidates": [ { "answer_id": "LO-TEST-P02-003", "score": 0.7001200318336487, "sibling_score": 0.7001200318336487, "answer_score": null, "sibling_qid": "KOC-2026-05-0003-Q012", "sibling_text": "me lub oil is contaminated with fresh water actions", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Abnormal LO condition: sump rise, colour, high temperature/pressure, lacquer, deterioration", "cross_family": false }, { "answer_id": "LO-TEST-P02-002", "score": 0.6945174932479858, "sibling_score": 0.6945174932479858, "answer_score": 0.5386762708425522, "sibling_qid": "KOC-2024-04-2044-Q005", "sibling_text": "indication for lube oil water ingress", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "LO contamination by water, fuel, microbes or solids: sources, indications, actions", "cross_family": false }, { "answer_id": "PUR-BOWL-P03-FINAL-1-003", "score": 0.6913026571273804, "sibling_score": 0.6913026571273804, "answer_score": null, "sibling_qid": "KOL-2017-02-1843-Q002", "sibling_text": "purifier overflowing waterline oil is coming", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "3. Overflow, Oil-Over-Water and Sludge Carry-Over — Causes, Checks and After-Overhaul Action", "cross_family": true } ] }, { "qid": "MUM-2023-08-2190-Q001", "text": "Fully balanced rudder.", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "MUM-2023-08-2190", "tray": "new", "candidates": [ { "answer_id": "TRS-001", "score": 0.6444764733314514, "sibling_score": 0.6444764733314514, "answer_score": null, "sibling_qid": "KOL-2019-05-3236-Q005", "sibling_text": "rudder stock twisted how will you balance it how to find changed mishsip position", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "The rudder stock is twisted — how do you proceed, recover the true midship datum, and what regulations let you proceed to the next port?", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.6208375096321106, "sibling_score": 0.6208375096321106, "answer_score": null, "sibling_qid": "MUM-2026-06-3584-Q005", "sibling_text": "what takes weight of rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "STEER-055-A-004", "score": 0.6200541257858276, "sibling_score": 0.6200541257858276, "answer_score": null, "sibling_qid": "KOL-2019-02-3212-Q005", "sibling_text": "rudder is taking more to come from one side to the other reasons and maintenance", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Hydraulic faults — air, sluggish response, locking, leakage", "cross_family": false } ] }, { "qid": "MUM-2023-08-2190-Q006", "text": "Risk assessment.", "family": "Risk & Safety Management", "subtopic": "Enclosed Space Entry", "tid": "MUM-2023-08-2190", "tray": "review", "candidates": [ { "answer_id": "RA-MGMT-B-001", "score": 0.7981410622596741, "sibling_score": 0.7981410622596741, "answer_score": null, "sibling_qid": "KOL-2022-09-3563-Q003", "sibling_text": "risc assessment", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "How is a shipboard risk assessment prepared and carried out?", "cross_family": false }, { "answer_id": "RA-MGMT-A-001", "score": 0.7894574999809265, "sibling_score": 0.7894574999809265, "answer_score": 0.5666805148124695, "sibling_qid": "MUM-2026-08-3829-Q002", "sibling_text": "risk assessment", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "What is risk, what is hazard, and what is risk assessment?", "cross_family": false }, { "answer_id": "LVC-577-001", "score": 0.5822328269481659, "sibling_score": null, "answer_score": 0.5822328269481659, "sibling_qid": "", "sibling_text": "define likelihood and consequence in risk assessment risk has two elements likelihood and consequence the matrix rating commonly combines them by multiplying where the sms uses that method likelihood the chance probability the harm occurs how likely how often", "sibling_family": "", "via": "answer_title", "answer_title": "Define likelihood and consequence in risk assessment", "cross_family": false } ] }, { "qid": "MUM-2023-08-2191-Q001", "text": "Bearing nomenclature", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Bearing Nomenclature", "tid": "MUM-2023-08-2191", "tray": "review", "candidates": [ { "answer_id": "BRG-NOM-001", "score": 0.8185634613037109, "sibling_score": 0.8185634613037109, "answer_score": 0.5008006125688552, "sibling_qid": "MUM-2025-12-2519-Q010", "sibling_text": "bearing nomenclature with eg", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bearing Numbers, Suffixes and What to State When Ordering", "cross_family": false }, { "answer_id": "BRG-NOM-002", "score": 0.7156135439872742, "sibling_score": 0.7156135439872742, "answer_score": 0.4700494706630707, "sibling_qid": "CHE-2025-08-0207-Q002", "sibling_text": "typesof bearing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Ball, Roller, Radial and Axial Bearings — Choosing the Type", "cross_family": false }, { "answer_id": "BRG-NOM-004", "score": 0.70860755443573, "sibling_score": 0.70860755443573, "answer_score": 0.45823585391044613, "sibling_qid": "MUM-2025-07-1147-Q008", "sibling_text": "nip of bearing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bearing Nip/Crush, Clearance, and How the Shell is Held", "cross_family": false } ] }, { "qid": "MUM-2023-08-2191-Q002", "text": "Welding electrode specification", "family": "Workshop & Welding", "subtopic": "Electrode (LH)", "tid": "MUM-2023-08-2191", "tray": "review", "candidates": [ { "answer_id": "WELD-PATM-002", "score": 0.9051328301429749, "sibling_score": 0.9051328301429749, "answer_score": 0.6238734245300293, "sibling_qid": "KOL-2019-10-3279-Q006", "sibling_text": "welding electrode specifications", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Manual metal-arc – electrode and current selection", "cross_family": false }, { "answer_id": "LH-ELEC-003", "score": 0.8268428444862366, "sibling_score": 0.8268428444862366, "answer_score": 0.5969592660665511, "sibling_qid": "KOL-2020-11-1563-Q004", "sibling_text": "welding electrode selection", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "3. How do you select or order the correct welding electrode or rod?", "cross_family": false }, { "answer_id": "LH-ELEC-001", "score": 0.804273247718811, "sibling_score": 0.804273247718811, "answer_score": null, "sibling_qid": "MUM-2026-06-3451-Q014", "sibling_text": "ci welding electrodes", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "1. Where are low-hydrogen electrodes used onboard?", "cross_family": false } ] }, { "qid": "MUM-2023-08-2740-Q001", "text": "2NDRY EXPLOSION", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Crankcase Explosion", "tid": "MUM-2023-08-2740", "tray": "new", "candidates": [ { "answer_id": "CCE-322-002", "score": 0.5889610052108765, "sibling_score": 0.5889610052108765, "answer_score": 0.39971225559711454, "sibling_qid": "MUM-2026-05-3137-Q004", "sibling_text": "how does secondary explosion occurs", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Primary versus secondary crankcase explosion", "cross_family": true }, { "answer_id": "EXD-EXI-A-002", "score": 0.5181674361228943, "sibling_score": 0.5181674361228943, "answer_score": null, "sibling_qid": "KOC-2025-01-1477-Q004", "sibling_text": "exd explain uses how inside explosion pressure vented out", "sibling_family": "", "via": "sibling", "answer_title": "Ex d (flameproof / explosion-proof) — construction, shipboard applications and maintenance", "cross_family": false }, { "answer_id": "SAE-388-002", "score": 0.4956371486186981, "sibling_score": 0.4956371486186981, "answer_score": null, "sibling_qid": "MUM-2023-05-2728-Q008", "sibling_text": "starting air explosion with cross question", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "What causes a starting air line explosion, and how is it prevented?", "cross_family": true } ] }, { "qid": "MUM-2023-08-2741-Q012", "text": "Pickling", "family": "Materials & Metallurgy", "subtopic": "Galvanising / Pickling / Surface Treatment", "tid": "MUM-2023-08-2741", "tray": "review", "candidates": [ { "answer_id": "WELD-B-008", "score": 0.760964035987854, "sibling_score": 0.760964035987854, "answer_score": null, "sibling_qid": "MUM-2024-01-2216-Q005", "sibling_text": "pickling asked by internal", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Pickling after welding — what it is and what it removes", "cross_family": true }, { "answer_id": "T038-P01-002", "score": 0.55214923620224, "sibling_score": 0.55214923620224, "answer_score": null, "sibling_qid": "MUM-2026-06-3550-Q001", "sibling_text": "pickling and passivation", "sibling_family": "Materials & Metallurgy", "via": "sibling", "answer_title": "HV system onboard — layout, components, applications, earthing & protection", "cross_family": false }, { "answer_id": "WMAT-170-004", "score": 0.41814279556274414, "sibling_score": 0.41814279556274414, "answer_score": null, "sibling_qid": "KOL-2024-03-1776-Q002", "sibling_text": "embedibilty", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Embeddability and conformability of bearing materials", "cross_family": true } ] }, { "qid": "MUM-2023-08-2741-Q015", "text": "Acid and basic refractory", "family": "Boilers - Construction & Components", "subtopic": "Furnace / Refractory", "tid": "MUM-2023-08-2741", "tray": "review", "candidates": [ { "answer_id": "FURN-REF-001", "score": 0.7821136116981506, "sibling_score": 0.7821136116981506, "answer_score": 0.43779224157333374, "sibling_qid": "MUM-2026-02-1254-Q008", "sibling_text": "acidic and basic refractory", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Boiler refractory — materials, types, composition and acidic / basic refractory", "cross_family": false }, { "answer_id": "FURN-REF-002", "score": 0.5026923418045044, "sibling_score": 0.5026923418045044, "answer_score": null, "sibling_qid": "MUM-2022-07-1013-Q010", "sibling_text": "what type of refractory on boiler if you put refrectory on boiler how can insert whats the procedure whats the composition too much cross question", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Boiler refractory patch-up, restoration, brick support and repair procedure", "cross_family": false }, { "answer_id": "FURN-REF-003", "score": 0.4945079982280731, "sibling_score": 0.4945079982280731, "answer_score": null, "sibling_qid": "KOL-2019-10-1876-Q004", "sibling_text": "4 refractory defects and how to maintain refractory in good condition", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Boiler refractory purpose, defects, failure reasons, maintenance and survey", "cross_family": false } ] }, { "qid": "MUM-2023-08-2741-Q016", "text": "Purpose of blowdown ring and location", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2023-08-2741", "tray": "new", "candidates": [ { "answer_id": "ACCT-583-A-001", "score": 0.42518895864486694, "sibling_score": 0.42518895864486694, "answer_score": null, "sibling_qid": "MUM-2023-06-2174-Q003", "sibling_text": "boiler blowdown ring accumulation of pressure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Explain the boiler accumulation pressure test — what it is, its purpose, and how it is carried out (including when and at what interval)", "cross_family": false }, { "answer_id": "SHRD-440-001", "score": 0.40235546231269836, "sibling_score": 0.40235546231269836, "answer_score": 0.3080860495567322, "sibling_qid": "KOL-2025-12-1827-Q004", "sibling_text": "shroud ring t c function and location", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "What is the shroud ring, where is it fitted, and what does it do?", "cross_family": true }, { "answer_id": "ACRV-005", "score": 0.3892134726047516, "sibling_score": 0.3892134726047516, "answer_score": null, "sibling_qid": "MUM-2026-06-3450-Q008", "sibling_text": "what is blowdown in relief valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": false } ] }, { "qid": "MUM-2023-08-2741-Q017", "text": "Type of refractory", "family": "Boilers - Construction & Components", "subtopic": "Furnace / Refractory", "tid": "MUM-2023-08-2741", "tray": "review", "candidates": [ { "answer_id": "FURN-REF-001", "score": 0.801495373249054, "sibling_score": 0.801495373249054, "answer_score": 0.4022161439061165, "sibling_qid": "MUM-2026-09-3975-Q014", "sibling_text": "type of refractory", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Boiler refractory — materials, types, composition and acidic / basic refractory", "cross_family": false }, { "answer_id": "FURN-REF-003", "score": 0.5876871943473816, "sibling_score": 0.5876871943473816, "answer_score": 0.393634532392025, "sibling_qid": "KOL-2019-10-1876-Q004", "sibling_text": "4 refractory defects and how to maintain refractory in good condition", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Boiler refractory purpose, defects, failure reasons, maintenance and survey", "cross_family": false }, { "answer_id": "FURN-REF-002", "score": 0.5641118288040161, "sibling_score": 0.5641118288040161, "answer_score": null, "sibling_qid": "MUM-2022-09-2146-Q012", "sibling_text": "refractory patch up in boiler furnace type of refractory used and procedure", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Boiler refractory patch-up, restoration, brick support and repair procedure", "cross_family": false } ] }, { "qid": "MUM-2023-08-2741-Q018", "text": "Type of safety valve and lift", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2023-08-2741", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.7770325541496277, "sibling_score": 0.7770325541496277, "answer_score": null, "sibling_qid": "MUM-2026-07-3737-Q004", "sibling_text": "boiler type safety valve type lift of safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACRV-005", "score": 0.6986201405525208, "sibling_score": 0.6986201405525208, "answer_score": 0.484643018245697, "sibling_qid": "MUM-2026-06-3429-Q010", "sibling_text": "safety valve lift difference", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-003", "score": 0.5156781315803528, "sibling_score": null, "answer_score": 0.5156781315803528, "sibling_qid": "", "sibling_text": "the accumulation test and the safety valve required lift how lift and capacity are verified and why accumulation must stay inside the limit popping test proves setting accumulation test proves installed relieving capacity not two versions of one test sizing the class discharge formula sizes the aggregate valve area from the maker s specified peak evaporation using a constant for the valve type", "sibling_family": "", "via": "answer_title", "answer_title": "The accumulation test and the safety valve — required lift, how lift and capacity are verified, and why accumulation must stay inside the limit", "cross_family": false } ] }, { "qid": "MUM-2023-08-2741-Q020", "text": "WHAT power train and working", "family": "General Marine Engineering", "subtopic": "Shafting / Propeller / CPP", "tid": "MUM-2023-08-2741", "tray": "new", "candidates": [ { "answer_id": "PERF-470-003", "score": 0.5352318286895752, "sibling_score": 0.5352318286895752, "answer_score": 0.4092661082744598, "sibling_qid": "MUM-2026-06-3534-Q005", "sibling_text": "engine power", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main-engine power calculation — formulae and cross-checks", "cross_family": true }, { "answer_id": "SHAFT-GEN-001", "score": 0.505656898021698, "sibling_score": 0.505656898021698, "answer_score": null, "sibling_qid": "KOC-2025-10-1601-Q008", "sibling_text": "shaft generator working", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Shaft generator — working, arrangement, components and function", "cross_family": true }, { "answer_id": "PERF-470-005", "score": 0.5054613351821899, "sibling_score": 0.5054613351821899, "answer_score": 0.4099303886294365, "sibling_qid": "KOL-2026-05-4244-Q006", "sibling_text": "power balancing of main engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main-engine power balancing — procedure", "cross_family": true } ] }, { "qid": "MUM-2023-08-2741-Q023", "text": "Work hardening", "family": "Materials & Metallurgy", "subtopic": "Shot Peening / Work Hardening / Forging / Spark Erosion", "tid": "MUM-2023-08-2741", "tray": "new", "candidates": [ { "answer_id": "HT-TCS-B-002", "score": 0.5501053333282471, "sibling_score": 0.5501053333282471, "answer_score": 0.3927062168717384, "sibling_qid": "KOL-2020-08-3345-Q003", "sibling_text": "case hardening", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Case & surface hardening — methods and engine components", "cross_family": true }, { "answer_id": "HT-TCS-B-003", "score": 0.47575581073760986, "sibling_score": 0.47575581073760986, "answer_score": 0.349238221347332, "sibling_qid": "CHE-2025-12-0459-Q004", "sibling_text": "hardening purpose of hardening which part in engine hardened", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Hardening — purpose, suitable materials and components", "cross_family": true }, { "answer_id": "HT-TCS-B-001", "score": 0.46733158826828003, "sibling_score": 0.46733158826828003, "answer_score": null, "sibling_qid": "MUM-2026-05-3246-Q009", "sibling_text": "hardening and tempering", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Tempering — purpose, classes and where it is used on board", "cross_family": true } ] }, { "qid": "MUM-2023-09-0126-Q001", "text": "Type of ship.... LNG fuelled oil tanker ship...", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2023-09-0126", "tray": "review", "candidates": [ { "answer_id": "LPG-LNG-009", "score": 0.8157539367675781, "sibling_score": 0.8157539367675781, "answer_score": null, "sibling_qid": "MUM-2026-01-0682-Q001", "sibling_text": "type of ship lng tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Gas-carrier fundamentals and ship-specific traps", "cross_family": false }, { "answer_id": "COT-01", "score": 0.7361168265342712, "sibling_score": 0.7361168265342712, "answer_score": 0.5455415397882462, "sibling_qid": "KOC-2026-04-0892-Q003", "sibling_text": "type of ship sailed tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Oil-tanker types, definitions and cargo capability", "cross_family": false }, { "answer_id": "IBC-BCH-B-004", "score": 0.7057012319564819, "sibling_score": 0.7057012319564819, "answer_score": null, "sibling_qid": "MUM-2026-05-3156-Q001", "sibling_text": "type of ships chemical tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Certificate of Fitness and MARPOL Annex II in practice", "cross_family": false } ] }, { "qid": "MUM-2023-09-0126-Q002S3", "text": "DCP for lng fuelled- how it is propelled.by what means How system is exceuted.?", "family": "", "subtopic": "", "tid": "MUM-2023-09-0126", "tray": "new", "candidates": [ { "answer_id": "DCP-FIXED-A-004", "score": 0.5495827794075012, "sibling_score": 0.5495827794075012, "answer_score": null, "sibling_qid": "KOC-2022-08-0087-Q002", "sibling_text": "fixed dcp system draw and explain why dcp used in lpg ship ship spec", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Why DCP on gas carriers, not foam/water/CO2, and the extinguishing principle", "cross_family": false }, { "answer_id": "IGC-GAS-006", "score": 0.5433648824691772, "sibling_score": 0.5433648824691772, "answer_score": null, "sibling_qid": "KOL-2024-03-0818-Q001", "sibling_text": "deck fixed fire fighting system on lng ship how it propelled why nitrogen", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Deck fixed dry chemical powder (DCP) fire-extinguishing system", "cross_family": false }, { "answer_id": "DCP-B-001", "score": 0.5007944107055664, "sibling_score": 0.5007944107055664, "answer_score": null, "sibling_qid": "KOC-2023-03-0158-Q002", "sibling_text": "type of ship lpg fixed dcp system draw and explain cross on working and chemical name and what chemical used for preventing caking maintenance", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fixed DCP system — maintenance, agitation, sampling and survey preparation", "cross_family": false } ] }, { "qid": "MUM-2023-09-0126-Q002S4", "text": "Spurling pipe.", "family": "", "subtopic": "", "tid": "MUM-2023-09-0126", "tray": "new", "candidates": [ { "answer_id": "PIPEFAB-011", "score": 0.48148152232170105, "sibling_score": 0.48148152232170105, "answer_score": null, "sibling_qid": "CHE-2026-08-3886-Q007", "sibling_text": "gi pipe", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Explain the repair procedure for a GI or GRP pipe, including welding a GI pipe", "cross_family": false }, { "answer_id": "ANCH-CHN-A-005", "score": 0.4672778248786926, "sibling_score": 0.4672778248786926, "answer_score": 0.33271164149045945, "sibling_qid": "KOC-2026-04-0901-Q010", "sibling_text": "dia of spurling pipe and hawse pipe", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Hawse pipe, spurling pipe & chain clearance", "cross_family": false }, { "answer_id": "PIPE-MAT-007", "score": 0.4360160529613495, "sibling_score": 0.4360160529613495, "answer_score": null, "sibling_qid": "KOL-2024-04-3681-Q004", "sibling_text": "seamless pipe where onboard", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Seamless pipe — manufacture, use onboard, vs welded", "cross_family": false } ] }, { "qid": "MUM-2023-09-0126-Q002S5", "text": "Oily bilge discharge", "family": "", "subtopic": "", "tid": "MUM-2023-09-0126", "tray": "review", "candidates": [ { "answer_id": "ODC-002", "score": 0.6939907670021057, "sibling_score": 0.6939907670021057, "answer_score": null, "sibling_qid": "KOL-2025-07-0978-Q004", "sibling_text": "annex 1 discharge regulation for bilge oil", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Machinery-space (engine room) bilge discharge criteria — outside a special area", "cross_family": false }, { "answer_id": "OILRES-DISCH-TOPIC467-FINAL-002", "score": 0.6792052984237671, "sibling_score": 0.6792052984237671, "answer_score": null, "sibling_qid": "KOL-2019-12-3976-Q005", "sibling_text": "how to discharge oil residue from ship", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Transferring, disposing and discharging oil residue (sludge) — procedure and MARPOL requirement", "cross_family": false }, { "answer_id": "OILRES-DISCH-TOPIC467-FINAL-004", "score": 0.674508273601532, "sibling_score": 0.674508273601532, "answer_score": null, "sibling_qid": "MUM-2022-08-0042-Q003", "sibling_text": "oil discharge regulations for cargo oil residues", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Cargo oil residues and the slop tank — purpose, capacity, handling, discharge criteria and reception facilities", "cross_family": false } ] }, { "qid": "MUM-2023-09-0128-Q005", "text": "structure of deck", "family": "Ship Construction & Stability", "subtopic": "Decks / Superstructure", "tid": "MUM-2023-09-0128", "tray": "new", "candidates": [ { "answer_id": "LLC-SURV-P02-002", "score": 0.5186858177185059, "sibling_score": 0.5186858177185059, "answer_score": 0.3365308418869972, "sibling_qid": "KOL-2022-03-0612-Q006", "sibling_text": "flush deck", "sibling_family": "", "via": "sibling", "answer_title": "2. Structural and watertight-integrity items: sheer, superstructure and flush deck", "cross_family": false }, { "answer_id": "CONT-FIRE-FINAL-1-005", "score": 0.5050725340843201, "sibling_score": 0.5050725340843201, "answer_score": null, "sibling_qid": "MUM-2024-09-0210-Q006", "sibling_text": "tiers of container on deck", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Container ship stability and on-deck tier loading", "cross_family": true }, { "answer_id": "FOAM-SYS-P05-001", "score": 0.4998587369918823, "sibling_score": 0.4998587369918823, "answer_score": null, "sibling_qid": "KOC-2026-02-2094-Q011", "sibling_text": "why ar afff is used in deck", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "1. Alcohol-resistant (AR-AFFF) foam — what it is and when it is used", "cross_family": true } ] }, { "qid": "MUM-2023-09-0129-Q002", "text": "In bulk carrier they are required to do their renewal survey as per ESP? What is ESP and what is their requirments? What is close up survey in ESP?", "family": "SOLAS - General (HOLD)", "subtopic": "Solas Chapter 12 - Bulk", "tid": "MUM-2023-09-0129", "tray": "review", "candidates": [ { "answer_id": "ESP-A-001", "score": 0.6539119482040405, "sibling_score": 0.6539119482040405, "answer_score": 0.4948044836521149, "sibling_qid": "MUM-2026-05-3148-Q001", "sibling_text": "what is esp in bulk carrier", "sibling_family": "SOLAS - General (HOLD)", "via": "sibling", "answer_title": "What is the Enhanced Survey Programme (ESP), and what is its purpose?", "cross_family": false }, { "answer_id": "ESP-B-002", "score": 0.6390825510025024, "sibling_score": 0.6390825510025024, "answer_score": null, "sibling_qid": "KOL-2020-10-0428-Q005", "sibling_text": "esp which type of ships its applicable what they surveyed in esp rao 1 related to esp cross question like what is close up survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Close-up survey, thickness gauging, substantial corrosion & renewal criteria", "cross_family": true }, { "answer_id": "ESP-A-002", "score": 0.5896583795547485, "sibling_score": 0.5896583795547485, "answer_score": null, "sibling_qid": "KOC-2022-01-0058-Q003", "sibling_text": "enhanced survey program of bulk carrier", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "On which ships is ESP applicable, under which statutory framework, and when is it carried out?", "cross_family": true } ] }, { "qid": "MUM-2023-09-0129-Q003", "text": "In bulk carriers we have 2 level detectors in cargo hold…..why 2 are provided? Rest all place like in engine room we have only one sensor for level in tank….then why 2 in Cargo hold at different level?……he told me I will give you one hint…..how will you find rate of rise water in a tank?", "family": "Cargo Ops - Bulk Carriers", "subtopic": "Cargo Hold Level Detector", "tid": "MUM-2023-09-0129", "tray": "review", "candidates": [ { "answer_id": "WIDAS-SMK-003", "score": 0.9117607474327087, "sibling_score": 0.9117607474327087, "answer_score": null, "sibling_qid": "MUM-2026-06-3387-Q008", "sibling_text": "in bulk carriers we have 2 level detectors in cargo hold why 2 are provided rest all place like in engine room we have only one sensor for level in tank then why 2 in cargo hold at different level he told me i will give you one hint how will you find rate of rise water in a tank", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "WIDAS arrangement — sensors, levels, panel and repeater", "cross_family": false }, { "answer_id": "TPL-SENS-B-001", "score": 0.6172229051589966, "sibling_score": 0.6172229051589966, "answer_score": null, "sibling_qid": "KOC-2026-05-2134-Q012", "sibling_text": "level transmitter working on cargo tanks", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Level sensing — float switches, level transmitters & boiler remote indicators", "cross_family": true }, { "answer_id": "WIDAS-SMK-002", "score": 0.593685507774353, "sibling_score": 0.593685507774353, "answer_score": null, "sibling_qid": "KOL-2017-03-0077-Q001", "sibling_text": "what are the different alarms fitted for water ingress in cargo hold cofferdam fore peak tank", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "WIDAS purpose and the three protected spaces", "cross_family": false } ] }, { "qid": "MUM-2023-09-0129-Q007", "text": "Difference between Net Tonnage and Gross Tonnage? If net tonnage is only revenue space of cargo hold, then what abt passenger ships? Cargo are people there and they are staying in accimodation….so accommodation does not come under net tonnage? so what is net tonnage there?", "family": "Cargo Ops - Bulk Carriers", "subtopic": "IMSBC / TML", "tid": "MUM-2023-09-0129", "tray": "review", "candidates": [ { "answer_id": "TONN-001", "score": 0.8733220100402832, "sibling_score": 0.8733220100402832, "answer_score": 0.5392748653888703, "sibling_qid": "MUM-2026-06-3387-Q012", "sibling_text": "difference between net tonnage and gross tonnage if net tonnage is only revenue space of cargo hold then what about passenger ships cargo are people there and they are staying in accimodation so accommodation does not come under net tonnage so what is net tonnage there", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Gross Tonnage (GT / GRT) — basis, units, significance", "cross_family": false }, { "answer_id": "TONN-007", "score": 0.6818028688430786, "sibling_score": 0.6818028688430786, "answer_score": 0.5652795553207397, "sibling_qid": "KOC-2023-03-0154-Q003", "sibling_text": "gt and nt of ship definition unit of both", "sibling_family": "", "via": "sibling", "answer_title": "Differentiate GT, NT, GRT/NRT, DWT, Lightweight and Displacement", "cross_family": false }, { "answer_id": "TONN-003", "score": 0.6649843454360962, "sibling_score": 0.6649843454360962, "answer_score": null, "sibling_qid": "CHE-2025-08-0047-Q002", "sibling_text": "what is deadweight gross tonnage", "sibling_family": "", "via": "sibling", "answer_title": "Deadweight Tonnage (DWT) — definition and calculation", "cross_family": false } ] }, { "qid": "MUM-2023-09-0132-Q001", "text": "Water received by propeller and thrust created by propeller", "family": "Shafting, Propeller & Rudder", "subtopic": "Stern Tube / Shafting / Propeller / Rudder", "tid": "MUM-2023-09-0132", "tray": "review", "candidates": [ { "answer_id": "TB-BEAR-002", "score": 0.6611378788948059, "sibling_score": 0.6611378788948059, "answer_score": null, "sibling_qid": "KOC-2025-03-1036-Q010", "sibling_text": "draw thrust transmission from propeller to ships hull", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Thrust block location, arrangement & thrust transmission to hull", "cross_family": false }, { "answer_id": "SPR-STERN-001", "score": 0.6456870436668396, "sibling_score": 0.6456870436668396, "answer_score": null, "sibling_qid": "MUM-2026-09-3973-Q005", "sibling_text": "efficiency of propeller", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Propeller design factors, efficiency, handedness & material", "cross_family": false }, { "answer_id": "SPR-STERN-004", "score": 0.6332690119743347, "sibling_score": 0.6332690119743347, "answer_score": null, "sibling_qid": "KOL-2022-03-0619-Q004", "sibling_text": "rake of propeller", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Propeller rake & skew", "cross_family": false } ] }, { "qid": "MUM-2023-09-0132-Q002", "text": "Functional requirements of fire safety code", "family": "ISM Code", "subtopic": "SMS / Functional Requirements", "tid": "MUM-2023-09-0132", "tray": "review", "candidates": [ { "answer_id": "FSS-CODE-005", "score": 0.6807946562767029, "sibling_score": 0.6807946562767029, "answer_score": 0.6075119078159332, "sibling_qid": "KOC-2025-03-0581-Q003", "sibling_text": "what is the functional requirements of fire fighting system as per solas", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "What are the functional requirements placed on a fire-fighting system, and what does the framework require of the arrangements you must have?", "cross_family": true }, { "answer_id": "FIRE-P03-01", "score": 0.6580857634544373, "sibling_score": 0.6580857634544373, "answer_score": null, "sibling_qid": "MUM-2023-07-0117-Q005", "sibling_text": "fixed fire detection requirements", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fixed fire-detection and alarm — loop architecture, control cabinet, power and indications", "cross_family": true }, { "answer_id": "FLD-601-001", "score": 0.645322322845459, "sibling_score": 0.645322322845459, "answer_score": null, "sibling_qid": "KOL-2025-09-1048-Q007", "sibling_text": "functional requirement of flammability diagram", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Draw and explain the hydrocarbon flammability diagram. What is its purpose and functional requirement, why is the line tapered, and how do you mark a point on it?", "cross_family": true } ] }, { "qid": "MUM-2023-09-0132-Q003", "text": "MFA certificate issued under which convention which regulation", "family": "Other Conventions", "subtopic": "STCW / Manila Amendments", "tid": "MUM-2023-09-0132", "tray": "new", "candidates": [ { "answer_id": "AFS-309-003", "score": 0.6244296431541443, "sibling_score": 0.6244296431541443, "answer_score": null, "sibling_qid": "KOC-2025-03-0556-Q002", "sibling_text": "afs convention and its certificate validity", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "IAFS Certificate, survey, validity and drydock compliance", "cross_family": false }, { "answer_id": "MLC-WRH-B-006", "score": 0.5540890693664551, "sibling_score": 0.5540890693664551, "answer_score": null, "sibling_qid": "MUM-2026-06-3656-Q002", "sibling_text": "certificates under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": true }, { "answer_id": "HKC-IHM-B-002", "score": 0.5448766946792603, "sibling_score": 0.5448766946792603, "answer_score": null, "sibling_qid": "KOC-2023-10-0221-Q004", "sibling_text": "hong kong convention and certificates involved", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What surveys, certificates and documents go with the IHM and the Hong Kong Convention?", "cross_family": false } ] }, { "qid": "MUM-2023-09-0132-Q006", "text": "OCM of what type, Light obscuring or Light scattered ?", "family": "MARPOL - Annex I (Oil)", "subtopic": "OCM / ODME / ODMCS", "tid": "MUM-2023-09-0132", "tray": "new", "candidates": [ { "answer_id": "OWS-15PPM-003", "score": 0.4762771725654602, "sibling_score": 0.4762771725654602, "answer_score": null, "sibling_qid": "KOL-2017-02-0062-Q003", "sibling_text": "ows separator 15 ppm how it s sensing light types", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "OWS-15PPM-004", "score": 0.4243749678134918, "sibling_score": 0.4243749678134918, "answer_score": null, "sibling_qid": "CHE-2026-02-0475-Q004", "sibling_text": "ows o c m device working principle", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ODC-014", "score": 0.40455561876296997, "sibling_score": 0.40455561876296997, "answer_score": null, "sibling_qid": "CHE-2025-08-0019-Q016", "sibling_text": "odmcs calibration shore validity", "sibling_family": "MARPOL - 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AE decarb / overhaul — preparation and full procedure", "cross_family": false }, { "answer_id": "EMD-MEAE-001", "score": 0.38615137338638306, "sibling_score": 0.38615137338638306, "answer_score": 0.26126516461372373, "sibling_qid": "MUM-2026-05-3238-Q001", "sibling_text": "foundation difference in ae and me mountings", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "1. ME vs AE foundation — rigid chocking against resilient mounting", "cross_family": true }, { "answer_id": "STAB-SD-A-001", "score": 0.35315513610839844, "sibling_score": 0.35315513610839844, "answer_score": null, "sibling_qid": "KOL-2018-04-0169-Q002", "sibling_text": "intact stability on what it depends", "sibling_family": "", "via": "sibling", "answer_title": "Intact stability and the 2008 IS Code criteria", "cross_family": false } ] }, { "qid": "MUM-2023-09-1061-Q009", "text": "why are multistages provider in a compressor.", "family": "Refrigeration & AC", "subtopic": "Reefer Compressor", "tid": "MUM-2023-09-1061", "tray": "new", "candidates": [ { "answer_id": "AC-STAGE-001", "score": 0.4933648705482483, "sibling_score": 0.4933648705482483, "answer_score": 0.4398278176784515, "sibling_qid": "KOL-2017-12-1333-Q003", "sibling_text": "why compressor works in stages relation between each stages", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Why multistage compression — advantages over single-stage", "cross_family": true }, { "answer_id": "ACSS-003", "score": 0.4176848351955414, "sibling_score": 0.39687860012054443, "answer_score": 0.4176848351955414, "sibling_qid": "KOC-2025-11-1970-Q001", "sibling_text": "main air compressor working advntages of multistages what all are the safeties provided on compressor reasons for lifting of safety valves", "sibling_family": "Air Compressor", "via": "answer_title", "answer_title": "Multistage working, cooling, stage arrangement and stage faults", "cross_family": true }, { "answer_id": "REEF-COMP-005", "score": 0.41534358263015747, "sibling_score": 0.41534358263015747, "answer_score": null, "sibling_qid": "KOC-2025-12-1984-Q004", "sibling_text": "reffer compressor why belt driven 4b pass 6 repeat", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "V-belt drive on reefer compressors — why, and checking condition, alignment, tension, replacement", "cross_family": false } ] }, { "qid": "MUM-2023-09-1062-Q002", "text": "Why suction is taken from crankcase in ref system", "family": "Refrigeration & AC", "subtopic": "Reefer Compressor", "tid": "MUM-2023-09-1062", "tray": "new", "candidates": [ { "answer_id": "MAC-353-003", "score": 0.5935525894165039, "sibling_score": 0.5935525894165039, "answer_score": null, "sibling_qid": "MUM-2026-05-3302-Q003", "sibling_text": "ac compressor why taking suction from crankcase x questions", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Main air compressor suction / delivery valve inspection and overhaul", "cross_family": true }, { "answer_id": "AIR-REF-002", "score": 0.5583926439285278, "sibling_score": 0.5583926439285278, "answer_score": null, "sibling_qid": "KOL-2025-08-3849-Q003", "sibling_text": "air in the ref system from where it is coming", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "2. How air enters a refrigeration system", "cross_family": false }, { "answer_id": "REEF-COMP-004", "score": 0.5364639759063721, "sibling_score": 0.5364639759063721, "answer_score": 0.41168536245822906, "sibling_qid": "MUM-2026-09-3876-Q007", "sibling_text": "lube oil charging in refer system", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Charging, replenishing and draining compressor lube oil — including with no charging pump", "cross_family": false } ] }, { "qid": "MUM-2023-09-1062-Q003", "text": "How EGB performance is taken ?", "family": "Boilers - Construction & Components", "subtopic": "EGB", "tid": "MUM-2023-09-1062", "tray": "new", "candidates": [ { "answer_id": "EGB-001", "score": 0.42959755659103394, "sibling_score": 0.42959755659103394, "answer_score": null, "sibling_qid": "KOC-2025-04-1037-Q015", "sibling_text": "egb leaking actions", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "The exhaust gas boiler tubes are leaking — indications, how you confirm it, your action as 2/E, and what you do when plugging is not enough and the engine cannot be stopped.", "cross_family": false }, { "answer_id": "CPP-POL-01", "score": 0.40966662764549255, "sibling_score": 0.40966662764549255, "answer_score": null, "sibling_qid": "MUM-2026-07-3767-Q014", "sibling_text": "main engine performance evaluation me engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Why and how is a main-engine performance test prepared, taken and assessed?", "cross_family": true }, { "answer_id": "ETP-344-P01-004", "score": 0.40832361578941345, "sibling_score": 0.40832361578941345, "answer_score": null, "sibling_qid": "CHE-2026-05-0551-Q011", "sibling_text": "why we are taking performance at 85 always", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "MCR, NCR, sea margin, load curve, heavy running — and why ~85%", "cross_family": true } ] }, { "qid": "MUM-2023-09-1062-Q004", "text": "What is pinch point", "family": "Boilers - Construction & Components", "subtopic": "Pinch Point", "tid": "MUM-2023-09-1062", "tray": "new", "candidates": [ { "answer_id": "TR-TB-PA-005", "score": 0.4282059073448181, "sibling_score": 0.4282059073448181, "answer_score": 0.3246045231819153, "sibling_qid": "MUM-2025-12-2889-Q003", "sibling_text": "tie bolt pinch screw location", "sibling_family": "2-Stroke - 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Generator & Alternator", "subtopic": "Alternator Protection", "tid": "MUM-2023-09-1400", "tray": "review", "candidates": [ { "answer_id": "ALT-GEN-P03-001", "score": 0.7349458336830139, "sibling_score": 0.7349458336830139, "answer_score": null, "sibling_qid": "MUM-2026-05-3347-Q001", "sibling_text": "alternator safeties x questions", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Alternator/generator working principle and onboard electricity generation", "cross_family": false }, { "answer_id": "ALT-GEN-P01-001", "score": 0.7191952466964722, "sibling_score": 0.7191952466964722, "answer_score": 0.4977993309497833, "sibling_qid": "MUM-2026-10-4001-Q010", "sibling_text": "alternator safeties not accepting answers", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Alternator/generator safeties and protection trips", "cross_family": false }, { "answer_id": "RPT-A-004", "score": 0.7168903946876526, "sibling_score": 0.7168903946876526, "answer_score": null, "sibling_qid": "KOC-2025-04-1521-Q019", "sibling_text": "when the alternator is rotating your prime mover what kind of safety is there for the prime mover", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Motoring action, what it does to the prime mover if the trip fails, and restarting after a reverse-power trip", "cross_family": false } ] }, { "qid": "MUM-2023-09-1401-Q001", "text": "Why 220V E/F not shown in 440V and 440V E/F in 220V?", "family": "", "subtopic": "Earth-Fault Detection (Lamp / Insulation Alarm)", "tid": "MUM-2023-09-1401", "tray": "new", "candidates": [ { "answer_id": "EFD-P02-003", "score": 0.5724981427192688, "sibling_score": 0.5724981427192688, "answer_score": 0.437015563249588, "sibling_qid": "CHE-2026-05-0643-Q005", "sibling_text": "earth fault 440 220 110 why separate", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Why separate 440V and 220V earth-fault / insulation monitors are provided", "cross_family": false }, { "answer_id": "IRT-A-004", "score": 0.526049017906189, "sibling_score": 0.526049017906189, "answer_score": null, "sibling_qid": "KOC-2026-03-0887-Q004", "sibling_text": "why ir indicator separately for 220 and 440v", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Choosing the megger test voltage - 250/500/1000 V and the 220/440 split", "cross_family": false }, { "answer_id": "VOLT-SYS-008", "score": 0.5046764612197876, "sibling_score": 0.5046764612197876, "answer_score": 0.3730916440486908, "sibling_qid": "CHE-2025-07-0266-Q003", "sibling_text": "why 440 220 110 why not in the other figure he was expecting the history of how 440 or 220 or 110 develops", "sibling_family": "Electrical - Distribution & MSB", "via": "sibling", "answer_title": "Why standard shipboard voltages: 440, 230/220, 110 and 24", "cross_family": false } ] }, { "qid": "MUM-2023-09-1403-Q002", "text": "How windings are cooled.", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator / Generator", "tid": "MUM-2023-09-1403", "tray": "new", "candidates": [ { "answer_id": "ALT-MTN-B-003", "score": 0.636907160282135, "sibling_score": 0.636907160282135, "answer_score": 0.4796563684940338, "sibling_qid": "MUM-2023-11-1410-Q007", "sibling_text": "alternator winding cooling system", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Heating control and cooling checks", "cross_family": false }, { "answer_id": "XFMR-THY-G-001", "score": 0.5710335969924927, "sibling_score": 0.5710335969924927, "answer_score": 0.448390531539917, "sibling_qid": "KOC-2022-01-1168-Q008", "sibling_text": "transformer cooling", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "1. 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Generator & Alternator", "subtopic": "Frequency", "tid": "MUM-2023-09-1404", "tray": "new", "candidates": [ { "answer_id": "VDIP-589-004", "score": 0.6082524657249451, "sibling_score": 0.6082524657249451, "answer_score": null, "sibling_qid": "KOL-2020-03-2380-Q002", "sibling_text": "regulation of generator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "What is voltage regulation of a generator?", "cross_family": false }, { "answer_id": "AVR-EXC-H-003", "score": 0.5991394519805908, "sibling_score": 0.5991394519805908, "answer_score": null, "sibling_qid": "MUM-2022-11-1370-Q004", "sibling_text": "its regulation based on time and stabilizing voltage range", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Voltage regulation, dip, droop and transient response", "cross_family": false }, { "answer_id": "VFD-INV-P02-002", "score": 0.5964240431785583, "sibling_score": 0.5964240431785583, "answer_score": 0.46927015781402587, "sibling_qid": "KOC-2024-09-1389-Q011", "sibling_text": "vfd how frequency is controlled", "sibling_family": "Electrical - 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Hull plate / shell-weld crack repair in drydock", "cross_family": true }, { "answer_id": "CEM-BOX-001", "score": 0.49270304441452023, "sibling_score": null, "answer_score": 0.49270304441452023, "sibling_qid": "", "sibling_text": "temporary repair with a cement box until dry dock take me through it reduce the head first trim or list by ballast isolate the line where the system allows crack drill stop holes at both tips removes the sharp stress raising tip so the crack cannot run", "sibling_family": "", "via": "answer_title", "answer_title": "Temporary repair with a cement box until dry dock—take me through it.", "cross_family": false } ] }, { "qid": "MUM-2023-09-2195-Q001", "text": "Blr derating.", "family": "Boilers - Construction & Components", "subtopic": "Boiler Capacity / Rating", "tid": "MUM-2023-09-2195", "tray": "new", "candidates": [ { "answer_id": "ENG-DERATE-001", "score": 0.5211496353149414, "sibling_score": 0.5211496353149414, "answer_score": 0.3126681730151176, "sibling_qid": "MUM-2026-07-3762-Q013", "sibling_text": "derating", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What is main-engine derating, and why is it done?", "cross_family": true }, { "answer_id": "ENG-DERATE-002", "score": 0.4900828003883362, "sibling_score": 0.4900828003883362, "answer_score": 0.27144659161567686, "sibling_qid": "KOL-2017-03-1281-Q002", "sibling_text": "how derated", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "How is a main engine temporarily derated and later restored, without propeller changes?", "cross_family": true }, { "answer_id": "BLR-CAP-BOILER-CAPACITY-RATING-001", "score": 0.4843498468399048, "sibling_score": 0.4843498468399048, "answer_score": null, "sibling_qid": "MUM-2025-08-0377-Q009", "sibling_text": "b iler rating", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "How is boiler rating or boiler capacity defined onboard?", "cross_family": false } ] }, { "qid": "MUM-2023-09-2195-Q002", "text": "Exhaust bellow removal and fitting,", "family": "2-Stroke - 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Lubrication & Bearings", "subtopic": "", "tid": "MUM-2023-09-2744", "tray": "review", "candidates": [ { "answer_id": "BEB-C-002", "score": 0.7508178353309631, "sibling_score": 0.7508178353309631, "answer_score": 0.5218493044376373, "sibling_qid": "KOL-2020-03-3332-Q001", "sibling_text": "bottom end bearing completely damaged actions how to run engine", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bottom end bearing damaged, no spare — action to reach port without damaging the pin", "cross_family": false }, { "answer_id": "MN-BRG-C-001", "score": 0.7352732419967651, "sibling_score": 0.7352732419967651, "answer_score": 0.5159029275178909, "sibling_qid": "KOL-2024-10-3720-Q005", "sibling_text": "main engine main bearing overhaul", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Opening, removing and overhauling a main bearing", "cross_family": false }, { "answer_id": "BEB-B-001", "score": 0.727540135383606, "sibling_score": 0.727540135383606, "answer_score": null, "sibling_qid": "MUM-2026-05-3255-Q006", "sibling_text": "main engine big end bearing have to inspect how will u proceed", "sibling_family": "2-Stroke - 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What is S and what is L?", "cross_family": false }, { "answer_id": "ENG-NOM-006", "score": 0.24555865675210953, "sibling_score": null, "answer_score": 0.24555865675210953, "sibling_qid": "", "sibling_text": "short form asks smc c lmc and me vs mc quickly smc c super long stroke man programme camshaft controlled compact lmc l long stroke the l is the stroke letter not a control or compact letter", "sibling_family": "", "via": "answer_title", "answer_title": "Short-form asks: SMC-C, LMC, and ME vs MC quickly", "cross_family": false } ] }, { "qid": "MUM-2023-09-2745-Q008", "text": "ISM maintenance", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "MUM-2023-09-2745", "tray": "review", "candidates": [ { "answer_id": "ISM-AUD-P02-005", "score": 0.7457643151283264, "sibling_score": 0.7457643151283264, "answer_score": 0.4038298666477203, "sibling_qid": "KOC-2025-05-2066-Q010", "sibling_text": "ism maintenance", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM and maintenance: PMS, risk assessment and critical spares", "cross_family": false }, { "answer_id": "PMS-392-002", "score": 0.6047309637069702, "sibling_score": 0.6047309637069702, "answer_score": 0.37938734889030457, "sibling_qid": "KOL-2020-06-1534-Q009", "sibling_text": "how to co relate maintenance to ism", "sibling_family": "Surveys - 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Crankshaft & Bedplate", "subtopic": "Crankshaft Material", "tid": "MUM-2023-09-2747", "tray": "new", "candidates": [ { "answer_id": "HT-A-001", "score": 0.4788080155849457, "sibling_score": 0.4788080155849457, "answer_score": 0.3746228605508804, "sibling_qid": "MUM-2025-12-2522-Q001", "sibling_text": "heat treatment process of steel", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Heat treatment: what it is, the main methods, and why it is done", "cross_family": true }, { "answer_id": "HT-A-002", "score": 0.4758480191230774, "sibling_score": 0.4758480191230774, "answer_score": null, "sibling_qid": "MUM-2026-05-3276-Q006", "sibling_text": "normalising of steel", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Annealing: process, cooling control, and the reused copper washer", "cross_family": true }, { "answer_id": "STEEL-GR-004", "score": 0.4738764762878418, "sibling_score": 0.4738764762878418, "answer_score": null, "sibling_qid": "MUM-2026-05-3173-Q002", "sibling_text": "different types of steel", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Types of steel and the effect of alloying elements", "cross_family": true } ] }, { "qid": "MUM-2023-09-2747-Q009", "text": "Safety valve checks ?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2023-09-2747", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P01-001", "score": 0.7643527388572693, "sibling_score": 0.7643527388572693, "answer_score": null, "sibling_qid": "MUM-2026-03-2589-Q003", "sibling_text": "checks on safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-003", "score": 0.6156989932060242, "sibling_score": 0.6156989932060242, "answer_score": 0.477212592959404, "sibling_qid": "MUM-2023-03-1044-Q007", "sibling_text": "accumulation of pressure test y is it carried out a how do u know if ur safety valve is of proper size", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "The accumulation test and the safety valve — required lift, how lift and capacity are verified, and why accumulation must stay inside the limit", "cross_family": false }, { "answer_id": "ECON-EGB-004", "score": 0.6091036200523376, "sibling_score": 0.6091036200523376, "answer_score": null, "sibling_qid": "KOL-2026-09-4304-Q003", "sibling_text": "safety valve setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Safety-valve setting after overhaul & why set higher than the boiler", "cross_family": false } ] }, { "qid": "MUM-2023-09-2747-Q012", "text": "Vane steering gear sealing arrangement Many more... MEP 6", "family": "Steering Gear & Hydraulics", "subtopic": "Frame System / Pump Type", "tid": "MUM-2023-09-2747", "tray": "review", "candidates": [ { "answer_id": "RVSG-213-003", "score": 0.6963975429534912, "sibling_score": 0.6963975429534912, "answer_score": 0.48437404334545137, "sibling_qid": "CHE-2026-04-0139-Q010", "sibling_text": "rotary vane steering gear sealing arrangements", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Sealing, clearances, relief, shock absorption & volumetric efficiency", "cross_family": false }, { "answer_id": "RVSG-213-005", "score": 0.681061327457428, "sibling_score": 0.681061327457428, "answer_score": null, "sibling_qid": "KOC-2021-07-0920-Q008", "sibling_text": "vane type steering jumping clearance accommodation it sealing of it", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Jumping clearance, thrust accommodation, stock connection & overhaul", "cross_family": false }, { "answer_id": "RVSG-213-004", "score": 0.6627698540687561, "sibling_score": 0.6627698540687561, "answer_score": null, "sibling_qid": "KOL-2022-02-3518-Q002", "sibling_text": "steering gear by pass valve use sealing on rotary vane steering gear", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Redundancy, emergency steering, local operation & bypass", "cross_family": false } ] }, { "qid": "MUM-2023-09-2747-Q016", "text": "Types of steel ?", "family": "Materials & Metallurgy", "subtopic": "Steel types, killed steel, high-tensile steel", "tid": "MUM-2023-09-2747", "tray": "review", "candidates": [ { "answer_id": "STEEL-GR-004", "score": 0.7671626806259155, "sibling_score": 0.7671626806259155, "answer_score": 0.5729578793048858, "sibling_qid": "MUM-2026-05-3173-Q002", "sibling_text": "different types of steel", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Types of steel and the effect of alloying elements", "cross_family": true }, { "answer_id": "STEEL-GR-002", "score": 0.705163836479187, "sibling_score": 0.705163836479187, "answer_score": null, "sibling_qid": "MUM-2026-06-3355-Q019", "sibling_text": "grades of steel whether is it mild steel or what type also heat number and types of steel", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Mild steel — composition, use, and how it differs from cast iron", "cross_family": true }, { "answer_id": "SGB-212-003", "score": 0.7041765451431274, "sibling_score": 0.7041765451431274, "answer_score": 0.5363997370004654, "sibling_qid": "MUM-2025-06-1131-Q003", "sibling_text": "types of stainless steel", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Types of stainless steel (austenitic) and onboard use", "cross_family": true } ] }, { "qid": "MUM-2023-10-0133-Q001", "text": "What type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2023-10-0133", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8166287541389465, "sibling_score": 0.8166287541389465, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.7903702855110168, "sibling_score": 0.7903702855110168, "answer_score": 0.50989271402359, "sibling_qid": "MUM-2026-02-0731-Q002", "sibling_text": "what type of ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7813363671302795, "sibling_score": 0.7813363671302795, "answer_score": 0.534677517414093, "sibling_qid": "KOC-2026-09-2198-Q001", "sibling_text": "type a and b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "MUM-2023-10-0133-Q003", "text": "Alarm values and whether it will trip or give alarm.", "family": "Electrical - Protection & Relays", "subtopic": "Protection / Relays", "tid": "MUM-2023-10-0133", "tray": "review", "candidates": [ { "answer_id": "IGAT-583-003", "score": 0.710152804851532, "sibling_score": 0.710152804851532, "answer_score": 0.48146106898784635, "sibling_qid": "KOC-2026-04-0903-Q007", "sibling_text": "ig alarms and trips and it s values int no question", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What are the set values for the IG system alarms and trips — IG line high, low and low-low pressure, oxygen content, PV valve and breaker pressures?", "cross_family": true }, { "answer_id": "EFD-P02-001", "score": 0.6729036569595337, "sibling_score": 0.6729036569595337, "answer_score": null, "sibling_qid": "CHE-2026-03-0342-Q010", "sibling_text": "what is the alarm value", "sibling_family": "", "via": "sibling", "answer_title": "Insulation / earth-fault monitor: principle, alarm value, test button, surveyor demonstration", "cross_family": false }, { "answer_id": "IGAT-583-001", "score": 0.6471472978591919, "sibling_score": 0.6471472978591919, "answer_score": null, "sibling_qid": "KOC-2025-07-0636-Q006", "sibling_text": "igs only alarms not trips", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "State all the alarms, trips and safety cut-outs provided on a tanker inert gas (IG) system.", "cross_family": true } ] }, { "qid": "MUM-2023-10-0133-Q005", "text": "What is Audit and Survey", "family": "ISM Code", "subtopic": "ISM / SMS / Audit", "tid": "MUM-2023-10-0133", "tray": "new", "candidates": [ { "answer_id": "AUDIT-IE-004", "score": 0.6236023902893066, "sibling_score": 0.6236023902893066, "answer_score": 0.4534832715988159, "sibling_qid": "KOC-2024-10-0437-Q006", "sibling_text": "audit and survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Difference between audit and survey", "cross_family": true }, { "answer_id": "ISM-AUD-P03-001", "score": 0.597977340221405, "sibling_score": 0.597977340221405, "answer_score": 0.40395034551620485, "sibling_qid": "KOC-2026-02-0822-Q011", "sibling_text": "difference between audit and survey he wants definition and differences", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Audit vs survey vs inspection; initial vs interim audit", "cross_family": false }, { "answer_id": "ISM-AUDIT-P01-002", "score": 0.5747894048690796, "sibling_score": 0.5747894048690796, "answer_score": null, "sibling_qid": "KOC-2023-12-0253-Q003", "sibling_text": "what are the audits carried in ism survey", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM/SMS audits and verifications — types, who conducts them, intervals and validity", "cross_family": false } ] }, { "qid": "MUM-2023-10-0133-Q008", "text": "Work rest hours in MLC 2006", "family": "MLC", "subtopic": "MLC / DMLC / Work-Rest", "tid": "MUM-2023-10-0133", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-002", "score": 0.7064472436904907, "sibling_score": 0.7064472436904907, "answer_score": 0.4774623155593872, "sibling_qid": "MUM-2022-07-0027-Q005", "sibling_text": "mlc 2006 wages rest hours", "sibling_family": "MLC", "via": "sibling", "answer_title": "Work and rest hours under MLC — the criteria, the weekly limit, the intervals", "cross_family": false }, { "answer_id": "MLC-WRH-B-004", "score": 0.5955800414085388, "sibling_score": 0.5955800414085388, "answer_score": 0.29393363296985625, "sibling_qid": "KOL-2021-07-0526-Q006", "sibling_text": "4 mlc 2006 rest hours minimum age required to workonboard minimum age for night watch", "sibling_family": "MLC", "via": "sibling", "answer_title": "Young seafarers — minimum age, night work, and what the 2/E must ensure", "cross_family": false }, { "answer_id": "MLC-WRH-B-003", "score": 0.5258373618125916, "sibling_score": 0.5258373618125916, "answer_score": 0.4401797294616699, "sibling_qid": "MUM-2025-10-0519-Q001", "sibling_text": "are rest hours in stcw and mlc same", "sibling_family": "MLC", "via": "sibling", "answer_title": "STCW versus MLC rest hours — the Manila amendments, and is a 6-2-2 split acceptable", "cross_family": false } ] }, { "qid": "MUM-2023-10-0134-Q002", "text": "Told me to explain the entire solas chapter 12 and esp.", "family": "SOLAS - General (HOLD)", "subtopic": "Solas Chapter 12 - Bulk", "tid": "MUM-2023-10-0134", "tray": "review", "candidates": [ { "answer_id": "SOLAS-XII-BC-002", "score": 0.6678147315979004, "sibling_score": 0.6678147315979004, "answer_score": 0.30218795537948606, "sibling_qid": "MUM-2023-02-0086-Q003", "sibling_text": "solas chapter 12 explain", "sibling_family": "SOLAS - General (HOLD)", "via": "sibling", "answer_title": "Explain SOLAS Chapter XII — the additional safety measures for bulk carriers", "cross_family": false }, { "answer_id": "SOLAS12-C-001", "score": 0.6430692672729492, "sibling_score": 0.6430692672729492, "answer_score": 0.290408131480217, "sibling_qid": "KOC-2025-10-0674-Q010", "sibling_text": "explain solas chapter 12", "sibling_family": "", "via": "sibling", "answer_title": "Explain SOLAS Chapter XII for bulk carriers — oral-exam overview", "cross_family": false }, { "answer_id": "SOLAS12-BC-B-002", "score": 0.6211438179016113, "sibling_score": 0.6211438179016113, "answer_score": 0.3056468844413757, "sibling_qid": "KOC-2025-07-0628-Q002", "sibling_text": "solas chapter 12 explain all contents", "sibling_family": "", "via": "sibling", "answer_title": "SOLAS Chapter XII — the 14 regulations (list)", "cross_family": false } ] }, { "qid": "MUM-2023-10-0135-Q001", "text": "Type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2023-10-0135", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8361091613769531, "sibling_score": 0.8361091613769531, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8013883233070374, "sibling_score": 0.8013883233070374, "answer_score": 0.5470469176769256, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8000956177711487, "sibling_score": 0.8000956177711487, "answer_score": 0.5211817562580109, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2023-10-0135-Q004", "text": "Solas ch 13", "family": "SOLAS - General (HOLD)", "subtopic": "Solas Chapters Overview", "tid": "MUM-2023-10-0135", "tray": "new", "candidates": [ { "answer_id": "SOLAS-OVW-002", "score": 0.6130642294883728, "sibling_score": 0.6130642294883728, "answer_score": null, "sibling_qid": "KOC-2021-11-0036-Q002", "sibling_text": "solas chapter 13 details", "sibling_family": "", "via": "sibling", "answer_title": "SOLAS Chapter XIII — verification of compliance (III Code / IMSAS)", "cross_family": false }, { "answer_id": "SOLAS12-C-001", "score": 0.5632618069648743, "sibling_score": 0.5632618069648743, "answer_score": null, "sibling_qid": "KOL-2019-12-0361-Q003", "sibling_text": "solas chapter 12 13", "sibling_family": "", "via": "sibling", "answer_title": "Explain SOLAS Chapter XII for bulk carriers — oral-exam overview", "cross_family": false }, { "answer_id": "SOLAS-XII-BC-002", "score": 0.5600525736808777, "sibling_score": 0.5600525736808777, "answer_score": null, "sibling_qid": "MUM-2025-11-0551-Q002", "sibling_text": "solas chap 12", "sibling_family": "SOLAS - General (HOLD)", "via": "sibling", "answer_title": "Explain SOLAS Chapter XII — the additional safety measures for bulk carriers", "cross_family": false } ] }, { "qid": "MUM-2023-10-0135-Q005", "text": "What is III code", "family": "Other Conventions", "subtopic": "III Code", "tid": "MUM-2023-10-0135", "tray": "new", "candidates": [ { "answer_id": "IGC-IGF-003", "score": 0.4954826235771179, "sibling_score": 0.4954826235771179, "answer_score": null, "sibling_qid": "KOC-2024-02-0294-Q001", "sibling_text": "what is igc code", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "IGC Code — scope and which gas tankers come under it", "cross_family": false }, { "answer_id": "IGC-IGF-002", "score": 0.4735819697380066, "sibling_score": 0.4735819697380066, "answer_score": null, "sibling_qid": "KOC-2025-03-0552-Q023", "sibling_text": "what is igf code", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "IGF Code — scope, ships and fuels it applies to", "cross_family": false }, { "answer_id": "IGC-IGF-001", "score": 0.4715692400932312, "sibling_score": 0.4715692400932312, "answer_score": null, "sibling_qid": "KOL-2025-11-1119-Q003", "sibling_text": "igc code igf code", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "IGC Code vs IGF Code — what they are and the difference", "cross_family": false } ] }, { "qid": "MUM-2023-10-0135-Q006", "text": "EPIRB and it's frequency", "family": "SOLAS - LSA & Lifeboats", "subtopic": "EPIRB / SART", "tid": "MUM-2023-10-0135", "tray": "review", "candidates": [ { "answer_id": "EPIRB-002", "score": 0.6728110909461975, "sibling_score": 0.6728110909461975, "answer_score": 0.4060872495174408, "sibling_qid": "KOC-2025-11-0712-Q003", "sibling_text": "epirb operation frequency testing", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "How is the EPIRB tested?", "cross_family": false }, { "answer_id": "EPIRB-SART-001", "score": 0.6499968767166138, "sibling_score": 0.6499968767166138, "answer_score": 0.39146386086940765, "sibling_qid": "KOC-2024-03-0313-Q003", "sibling_text": "sart and epirb frequency", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What is the difference between EPIRB and SART? Give the function, construction, use and operation of each.", "cross_family": false }, { "answer_id": "EPIRB-003", "score": 0.5788305401802063, "sibling_score": 0.5788305401802063, "answer_score": 0.44186982810497283, "sibling_qid": "CHE-2025-07-0011-Q005", "sibling_text": "epirb what signal it send", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What signal does the EPIRB send — frequency, how and where it is routed, who receives it, and how it is stored and activated?", "cross_family": false } ] }, { "qid": "MUM-2023-10-0135-Q009", "text": "life boat davit 5 yearly maintenance", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Lifeboat / Davit / LSA", "tid": "MUM-2023-10-0135", "tray": "review", "candidates": [ { "answer_id": "LB-DAVIT-HRU-005", "score": 0.8280035257339478, "sibling_score": 0.8280035257339478, "answer_score": 0.596014940738678, "sibling_qid": "MUM-2022-09-0046-Q005", "sibling_text": "5 yearly maintenance on life boat david winch", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "The 5-yearly maintenance and testing of the lifeboat davit and winch", "cross_family": false }, { "answer_id": "DRG-B-006", "score": 0.7914925217628479, "sibling_score": 0.7914925217628479, "answer_score": null, "sibling_qid": "KOL-2021-12-0583-Q005", "sibling_text": "lifeboat yearly maintenance as 2e lowering and davit and fall maintenance", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Falls — maintenance, end-for-ending and renewal", "cross_family": false }, { "answer_id": "LBT-TEST-B-002", "score": 0.7883907556533813, "sibling_score": 0.7883907556533813, "answer_score": 0.5429634541273117, "sibling_qid": "KOC-2026-02-0824-Q005", "sibling_text": "life boat davit 5 yearly and yearly test", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Annual and 5-yearly lifeboat/davit tests (the servicing regime)", "cross_family": false } ] }, { "qid": "MUM-2023-10-0136-Q002", "text": "What type of ship you have sailed?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2023-10-0136", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.7796620726585388, "sibling_score": 0.7796620726585388, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7786681056022644, "sibling_score": 0.7786681056022644, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.7554470896720886, "sibling_score": 0.7554470896720886, "answer_score": null, "sibling_qid": "MUM-2026-02-1280-Q001", "sibling_text": "type of ship done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false } ] }, { "qid": "MUM-2023-10-0136-Q005", "text": "MLC work hours and rest hours?", "family": "MLC", "subtopic": "MLC / DMLC / Work-Rest", "tid": "MUM-2023-10-0136", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-002", "score": 0.7474618554115295, "sibling_score": 0.7474618554115295, "answer_score": 0.5326306939125061, "sibling_qid": "MUM-2026-02-2918-Q018", "sibling_text": "mlc work and rest hours", "sibling_family": "MLC", "via": "sibling", "answer_title": "Work and rest hours under MLC — the criteria, the weekly limit, the intervals", "cross_family": false }, { "answer_id": "MLC-WRH-B-004", "score": 0.5703930258750916, "sibling_score": 0.5703930258750916, "answer_score": null, "sibling_qid": "KOL-2021-07-0526-Q006", "sibling_text": "4 mlc 2006 rest hours minimum age required to workonboard minimum age for night watch", "sibling_family": "MLC", "via": "sibling", "answer_title": "Young seafarers — minimum age, night work, and what the 2/E must ensure", "cross_family": false }, { "answer_id": "MLC-WRH-B-003", "score": 0.5581637620925903, "sibling_score": 0.5581637620925903, "answer_score": 0.46710817515850067, "sibling_qid": "MUM-2025-10-0519-Q001", "sibling_text": "are rest hours in stcw and mlc same", "sibling_family": "MLC", "via": "sibling", "answer_title": "STCW versus MLC rest hours — the Manila amendments, and is a 6-2-2 split acceptable", "cross_family": false } ] }, { "qid": "MUM-2023-10-0136-Q008", "text": "What is periodic survey, scope and in which survey?", "family": "Surveys - Statutory", "subtopic": "Safety Construction / Cargo Safety Cert", "tid": "MUM-2023-10-0136", "tray": "new", "candidates": [ { "answer_id": "SVY-SCOPE-003", "score": 0.6459195017814636, "sibling_score": 0.6459195017814636, "answer_score": 0.38454235494136807, "sibling_qid": "MUM-2023-01-2161-Q007", "sibling_text": "periodical survey and annual survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the difference between a periodical survey and an annual survey?", "cross_family": false }, { "answer_id": "HSSC-002", "score": 0.6279657483100891, "sibling_score": 0.6279657483100891, "answer_score": null, "sibling_qid": "CHE-2026-05-0623-Q011", "sibling_text": "what is initial annual periodical and intermediate survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What are the initial, annual, periodical and intermediate surveys under HSSC, which surveys are NOT included, and which conventions does the harmonised system cover?", "cross_family": false }, { "answer_id": "CSAS-SURV-004", "score": 0.616836667060852, "sibling_score": 0.616836667060852, "answer_score": 0.4252427816390991, "sibling_qid": "KOL-2021-10-3467-Q003", "sibling_text": "what is periodic survey", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Annual vs intermediate vs periodical vs additional survey", "cross_family": true } ] }, { "qid": "MUM-2023-10-0137-Q001", "text": "Explain bleve , what causes it, where does it occur?", "family": "Cargo Ops - Gas Carriers", "subtopic": "BLEVE / Boil-Off", "tid": "MUM-2023-10-0137", "tray": "new", "candidates": [ { "answer_id": "BLEVE-BOG-001", "score": 0.5632308721542358, "sibling_score": 0.5632308721542358, "answer_score": 0.3905976086854935, "sibling_qid": "MUM-2026-04-0915-Q001", "sibling_text": "bleve full form and explain", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "What is BLEVE and how is it explained on gas carriers?", "cross_family": false }, { "answer_id": "BBF-621-001", "score": 0.329805126786232, "sibling_score": null, "answer_score": 0.329805126786232, "sibling_qid": "", "sibling_text": "what is boiler backfire blowback explain the furnace event the reasons and how you prevent it one event two names backfire blowback a fireside furnace explosion it endangers anyone at the boiler front and can distort the casing the mechanism is always the same a combustible fuel air charge accumulates in the furnace then meets an ignition source and deflagrates", "sibling_family": "", "via": "answer_title", "answer_title": "What is boiler backfire / blowback? Explain the furnace event, the reasons, and how you prevent it.", "cross_family": false }, { "answer_id": "BFS-257-006", "score": 0.298268136382103, "sibling_score": null, "answer_score": 0.298268136382103, "sibling_qid": "", "sibling_text": "boiler backfire blowback panting causes prevention actions backfire blowback outward flame and pressure pulse from the furnace front panting combustion pulsation mechanism unburnt fuel gas accumulates then ignites late or combustion is unstable", "sibling_family": "", "via": "answer_title", "answer_title": "Boiler backfire / blowback / panting — causes, prevention, actions", "cross_family": false } ] }, { "qid": "MUM-2023-10-0137-Q005", "text": "lifeboat air bottle details", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Lifeboat / Davit / LSA", "tid": "MUM-2023-10-0137", "tray": "review", "candidates": [ { "answer_id": "LB-REQ-B-007", "score": 0.6764898896217346, "sibling_score": 0.6764898896217346, "answer_score": null, "sibling_qid": "MUM-2026-07-3838-Q009", "sibling_text": "life boat ventilation criteria", "sibling_family": "SOLAS - 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Tankers", "subtopic": "Pump Room Safety", "tid": "MUM-2023-10-0139", "tray": "new", "candidates": [ { "answer_id": "UPT-FIRE-001", "score": 0.4789136052131653, "sibling_score": 0.4789136052131653, "answer_score": null, "sibling_qid": "KOC-2025-01-1892-Q005", "sibling_text": "uptake fire actions", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "The 4/E reports an uptake fire — your actions as 2/E", "cross_family": true }, { "answer_id": "FIRE-P04-05", "score": 0.44654324650764465, "sibling_score": 0.44654324650764465, "answer_score": null, "sibling_qid": "MUM-2023-03-0094-Q004", "sibling_text": "fire in dd actions as 2e if no ce", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fire in dry dock / alongside repair — 2/E stepwise actions", "cross_family": true }, { "answer_id": "PUMPRM-B-003", "score": 0.4356050491333008, "sibling_score": 0.4356050491333008, "answer_score": null, "sibling_qid": "MUM-2026-04-2991-Q003", "sibling_text": "pump room fire", "sibling_family": "Cargo Ops - 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Stern tube bearings — number, size, fixing, clearance, weardown and high-temperature", "cross_family": false } ] }, { "qid": "MUM-2023-10-0953-Q004", "text": "Main bearing clearance check", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "", "tid": "MUM-2023-10-0953", "tray": "review", "candidates": [ { "answer_id": "BCL-592-001", "score": 0.8016801476478577, "sibling_score": 0.8016801476478577, "answer_score": null, "sibling_qid": "KOL-2025-10-2017-Q006", "sibling_text": "main bearing clearance how to check", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you take main bearing clearance with a bridge gauge? What checks and precautions come first, and where must the crankshaft be positioned?", "cross_family": false }, { "answer_id": "MN-BRG-C-003", "score": 0.7996504902839661, "sibling_score": 0.7996504902839661, "answer_score": 0.571084377169609, "sibling_qid": "KOC-2024-07-1847-Q002", "sibling_text": "checks on main bearing how will you take clearances which all methods", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main bearing clearance and wear-down: measuring and interpreting", "cross_family": false }, { "answer_id": "MAIN-BRG-D-004", "score": 0.7634591460227966, "sibling_score": 0.7634591460227966, "answer_score": null, "sibling_qid": "KOC-2025-05-2063-Q011", "sibling_text": "checks on main bearing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main bearing overhaul — jack-up, clearance check and tightening", "cross_family": false } ] }, { "qid": "MUM-2023-10-0954-Q004", "text": "Fresh water generator vacuum test", "family": "Fresh Water & Domestic Systems", "subtopic": "FWG / RO", "tid": "MUM-2023-10-0954", "tray": "review", "candidates": [ { "answer_id": "FWG-RO-001", "score": 0.6775416135787964, "sibling_score": 0.6775416135787964, "answer_score": 0.48831503987312314, "sibling_qid": "MUM-2026-07-3709-Q006", "sibling_text": "fresh water generator not getting vacuum why any 6 reasons", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "How is vacuum created in the FWG, why does it run under vacuum, and what if the vacuum will not come?", "cross_family": true }, { "answer_id": "VAC-COND-002", "score": 0.6604902744293213, "sibling_score": 0.6604902744293213, "answer_score": 0.4385646641254425, "sibling_qid": "KOL-2026-07-4255-Q006", "sibling_text": "fresh water generator not getting vaccum why any 6 reasons", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Low vacuum, suction loss and failure to build vacuum — the reasons", "cross_family": true }, { "answer_id": "VAC-COND-004", "score": 0.6168045997619629, "sibling_score": 0.6168045997619629, "answer_score": 0.46225968599319456, "sibling_qid": "KOC-2024-12-1887-Q007", "sibling_text": "vaccum condenser pressure testing pressure", "sibling_family": "Cargo Ops - 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Generator & Alternator", "via": "sibling", "answer_title": "Which type of excitation gives the least voltage dip, and how do the types compare?", "cross_family": false }, { "answer_id": "RPT-A-001", "score": 0.41758406162261963, "sibling_score": 0.41758406162261963, "answer_score": null, "sibling_qid": "KOL-2020-01-2366-Q002", "sibling_text": "reverse power trip why reverse power happen due to reverse power trip one dg will be out so after what happens what is idmt why it is inverse", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Reverse power: what it is, why it happens, why we protect against it", "cross_family": false } ] }, { "qid": "MUM-2023-10-1409-Q005", "text": "shore power phases are different from the ship what will happen?", "family": "SOLAS", "subtopic": "Phase Sequence", "tid": "MUM-2023-10-1409", "tray": "review", "candidates": [ { "answer_id": "SHORE-CONN-P02-003", "score": 0.6774193048477173, "sibling_score": 0.6774193048477173, "answer_score": null, "sibling_qid": "KOC-2025-04-1526-Q004", "sibling_text": "shore supply pre checks what to do in case the phase sequence is not matching few more can t remember internal", "sibling_family": "", "via": "sibling", "answer_title": "Phase sequence — checking, correcting, and when the indicator is dead", "cross_family": false }, { "answer_id": "SHORE-CONN-P04-003", "score": 0.5897836685180664, "sibling_score": 0.5897836685180664, "answer_score": 0.4748777449131012, "sibling_qid": "KOC-2025-02-1497-Q005", "sibling_text": "difference between shore electrical system and ship electrical system why only 3 phase and 3 wire system in ship and what is the purpose internal ubaidu procedure to take shore connection precautions and check before shore connection what all machines that are required to be stopped before shore supply on list the machines that will be running in shore supply", "sibling_family": "", "via": "sibling", "answer_title": "Operating on shore supply: running loads, cargo use, and fault-finding", "cross_family": false }, { "answer_id": "SHORE-CONN-P04-001", "score": 0.5814288854598999, "sibling_score": 0.5814288854598999, "answer_score": null, "sibling_qid": "KOL-2025-12-2928-Q003", "sibling_text": "shore supply voltage same but frequency low actions", "sibling_family": "", "via": "sibling", "answer_title": "Accepting shore supply at a different frequency or voltage (incl. dry dock)", "cross_family": false } ] }, { "qid": "MUM-2023-10-1409-Q007", "text": "He told me little more efforts required as it was my first attempt", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2023-10-1409", "tray": "new", "candidates": [ { "answer_id": "ISM-AUDIT-P01-001", "score": 0.5024895668029785, "sibling_score": 0.5024895668029785, "answer_score": null, "sibling_qid": "KOC-2021-07-0009-Q006", "sibling_text": "ism preparation i told more than 10 but he is not satisfied", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Preparing engine room, records and documents for ISM/SMS audit (2/E)", "cross_family": true }, { "answer_id": "STAB-SD-A-001", "score": 0.44250455498695374, "sibling_score": 0.44250455498695374, "answer_score": null, "sibling_qid": "KOL-2021-07-0519-Q006", "sibling_text": "intact stability criteria i started after 2 points he stopped like you know it no need further he was satisfied with my all answers", "sibling_family": "", "via": "sibling", "answer_title": "Intact stability and the 2008 IS Code criteria", "cross_family": false }, { "answer_id": "CERT-LIST-P01-001", "score": 0.42999792098999023, "sibling_score": 0.42999792098999023, "answer_score": null, "sibling_qid": "KOC-2024-11-0475-Q008", "sibling_text": "but he expected 2 more certificate that i was missing", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "List the statutory certificates carried onboard a ship.", "cross_family": true } ] }, { "qid": "MUM-2023-10-2197-Q001", "text": "How to check fuel pump timing in ME engine and how to adjust it", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Injection System", "tid": "MUM-2023-10-2197", "tray": "review", "candidates": [ { "answer_id": "FCL-P02-001", "score": 0.7770640254020691, "sibling_score": 0.7770640254020691, "answer_score": 0.597355306148529, "sibling_qid": "KOC-2024-03-2043-Q009", "sibling_text": "me fuel pump timing check", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel pump / injection timing check, setting, and adjustment", "cross_family": false }, { "answer_id": "FCL-P03-001", "score": 0.757726788520813, "sibling_score": 0.757726788520813, "answer_score": 0.6303476691246033, "sibling_qid": "KOL-2025-11-3881-Q004", "sibling_text": "ae fuel pump timing check and adjustment", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "AE / auxiliary-engine fuel pump timing check and adjustment", "cross_family": false }, { "answer_id": "FCL-P03-003", "score": 0.7465956807136536, "sibling_score": 0.7465956807136536, "answer_score": null, "sibling_qid": "KOC-2022-03-2029-Q005", "sibling_text": "sulzer fuel pump timing check ans answered as per video in youtube using dialguages in suction spill plunger assembly", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Sulzer / RTA fuel pump timing and lead", "cross_family": false } ] }, { "qid": "MUM-2023-10-2197-Q002", "text": "what piston position to take AE bottom bearing clearance", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Decarb Checks / Connecting Rod / Bottom End Bearing", "tid": "MUM-2023-10-2197", "tray": "review", "candidates": [ { "answer_id": "AECR-651-004", "score": 0.7739068269729614, "sibling_score": 0.7739068269729614, "answer_score": null, "sibling_qid": "MUM-2026-06-3353-Q004", "sibling_text": "ae bottom end bearing clearance hook up piston", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "How do you inspect the bottom-end bearing, and how do you take the AE big-end clearance without removing it?", "cross_family": false }, { "answer_id": "BEB-B-002", "score": 0.7630006074905396, "sibling_score": 0.7630006074905396, "answer_score": 0.5585183501243591, "sibling_qid": "KOC-2026-08-2158-Q016", "sibling_text": "what will be piston position while taking main bearing clearance", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Bottom End Bearing — Clearance Measurement", "cross_family": false }, { "answer_id": "AE-CRP-007", "score": 0.710267961025238, "sibling_score": 0.710267961025238, "answer_score": null, "sibling_qid": "MUM-2026-05-3331-Q003", "sibling_text": "how to take bottom end bearing clearance of ae", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE big-end / bottom-end bearing — inspection, bedding, nip and crush", "cross_family": false } ] }, { "qid": "MUM-2023-10-2198-Q004", "text": "Globe valve overhaul", "family": "Pumps - Centrifugal & PD", "subtopic": "Bilge Line / Pump", "tid": "MUM-2023-10-2198", "tray": "review", "candidates": [ { "answer_id": "GV-330-002", "score": 0.7945411205291748, "sibling_score": 0.7945411205291748, "answer_score": 0.5220067679882049, "sibling_qid": "KOL-2026-03-3935-Q002", "sibling_text": "overhauling of globe valve", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Gate valve overhaul, checks & the stuck / not-operating valve", "cross_family": true }, { "answer_id": "EXV-P02-001", "score": 0.6082959771156311, "sibling_score": 0.6082959771156311, "answer_score": null, "sibling_qid": "KOC-2026-02-0807-Q010", "sibling_text": "exh valve overhauling procedure", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve overhaul & dismantling — procedure and precautions", "cross_family": true }, { "answer_id": "SDNR-SDR-001", "score": 0.6067146062850952, "sibling_score": 0.6067146062850952, "answer_score": null, "sibling_qid": "KOL-2026-07-4285-Q006", "sibling_text": "globe valve disadvantage", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "SDNR versus a plain globe valve -- telling them apart from outside, and the drawbacks of each", "cross_family": true } ] }, { "qid": "MUM-2023-10-2199-Q001", "text": "Purifier desluging not happening reasons", "family": "Purifier & Centrifuges", "subtopic": "Desludging", "tid": "MUM-2023-10-2199", "tray": "new", "candidates": [ { "answer_id": "PURIF-BOWL-P02-001", "score": 0.6234731078147888, "sibling_score": 0.6234731078147888, "answer_score": 0.3030098006129265, "sibling_qid": "MUM-2026-05-3206-Q011", "sibling_text": "purifier not desludging reasons", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Bowl opening, closing & manual desludging — mechanism, manual operation, failure causes", "cross_family": false }, { "answer_id": "PUR-BOWL-P03-FINAL-1-003", "score": 0.5167274475097656, "sibling_score": 0.5167274475097656, "answer_score": null, "sibling_qid": "KOL-2021-09-3457-Q001", "sibling_text": "purifier water side sludge coming reasons", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "3. Overflow, Oil-Over-Water and Sludge Carry-Over — Causes, Checks and After-Overhaul Action", "cross_family": false }, { "answer_id": "PURIF-BOWL-P02-002", "score": 0.48771268129348755, "sibling_score": 0.48771268129348755, "answer_score": null, "sibling_qid": "KOL-2026-02-3917-Q006", "sibling_text": "purifier not pick up speed reasons and xx", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Drive, rated RPM, overload, vibration / wobbling & dynamic balancing — causes and troubleshooting", "cross_family": false } ] }, { "qid": "MUM-2023-10-2199-Q003", "text": "Bolt broken how to extract", "family": "Workshop & Welding", "subtopic": "Broken Bolt Removal", "tid": "MUM-2023-10-2199", "tray": "new", "candidates": [ { "answer_id": "BBR-001", "score": 0.6469741463661194, "sibling_score": 0.6469741463661194, "answer_score": 0.5144884407520294, "sibling_qid": "MUM-2026-03-2642-Q005", "sibling_text": "how to remove broken banjo bolt", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "How do you extract a broken or sheared stud/bolt from machinery or structure?", "cross_family": false }, { "answer_id": "BBR-003", "score": 0.5480199456214905, "sibling_score": 0.5480199456214905, "answer_score": 0.4442524015903473, "sibling_qid": "KOC-2026-01-1093-Q015", "sibling_text": "aux engine cylinder head exhaust manifold one bolt head got rounded how to remove 4b repeat and 6 pass", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "How do you remove a rounded bolt head on an auxiliary-engine exhaust manifold or similar assembly?", "cross_family": false }, { "answer_id": "INT-SHAFT-002", "score": 0.5381678342819214, "sibling_score": 0.5381678342819214, "answer_score": null, "sibling_qid": "KOL-2018-12-3965-Q010", "sibling_text": "intermediate shaft bolt removal process actually he wants to listen hollow bolts removal got fn 5", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "2. Removing and overhauling the intermediate shaft (with hollow coupling bolts)", "cross_family": true } ] }, { "qid": "MUM-2023-10-2199-Q005", "text": "Cast iron welding process", "family": "Workshop & Welding", "subtopic": "Cast Iron Welding", "tid": "MUM-2023-10-2199", "tray": "review", "candidates": [ { "answer_id": "WELD-B-001", "score": 0.8330458402633667, "sibling_score": 0.8330458402633667, "answer_score": 0.553712773323059, "sibling_qid": "CHE-2026-05-0531-Q005", "sibling_text": "cast iron welding procedure", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding & crack-repair of aluminium and cast iron, including metal stitching", "cross_family": false }, { "answer_id": "METAL-LOCK-001", "score": 0.504215008020401, "sibling_score": null, "answer_score": 0.504215008020401, "sibling_qid": "", "sibling_text": "what is metal locking stitching why use it materials benefits cold process zero heat applied at any stage for brittle cast iron and other castings where welding risks further cracking or a brittle heat affected zone", "sibling_family": "", "via": "answer_title", "answer_title": "What is metal locking / stitching, why use it, materials & benefits", "cross_family": false }, { "answer_id": "LH-ELEC-006", "score": 0.49733828902244565, "sibling_score": null, "answer_score": 0.49733828902244565, "sibling_qid": "", "sibling_text": "6 how would you approach a cast iron valve repair when the examiner probes welding and low hydrogen electrodes first response replace or fit a sound same size valve a welded cast iron repair is a stop gap not equal to new if welding cast iron not a plain mild steel low hydrogen rod the high carbon makes a hard brittle cracking weld", "sibling_family": "", "via": "answer_title", "answer_title": "6. How would you approach a cast-iron valve repair when the examiner probes welding and low-hydrogen electrodes?", "cross_family": false } ] }, { "qid": "MUM-2023-10-2200-Q001", "text": "Internal questions - boiler tube renewal procedure", "family": "Boilers - Operations & Firing", "subtopic": "Boiler Operations", "tid": "MUM-2023-10-2200", "tray": "review", "candidates": [ { "answer_id": "BLR-TUBE-P02-003", "score": 0.7637280225753784, "sibling_score": 0.7637280225753784, "answer_score": 0.6363090932369232, "sibling_qid": "KOL-2022-04-3531-Q002", "sibling_text": "boiler tube renewal", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Repairing, removing and renewing a boiler tube; Class formalities", "cross_family": true }, { "answer_id": "BLR-TUBE-P02-002", "score": 0.7210114002227783, "sibling_score": 0.7210114002227783, "answer_score": 0.5262152194976807, "sibling_qid": "KOL-2024-12-1792-Q006", "sibling_text": "criteria for plugging of boiler tube and renewal of tube", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Plugging a leaking boiler tube (temporary arrest)", "cross_family": true }, { "answer_id": "BLR-TUBE-P01-002", "score": 0.704107403755188, "sibling_score": 0.704107403755188, "answer_score": null, "sibling_qid": "KOL-2019-10-3283-Q004", "sibling_text": "boiler tube removal procedure", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "03. Types, functions and arrangement of boiler tubes", "cross_family": true } ] }, { "qid": "MUM-2023-10-2200-Q005", "text": "Many of tube plug then renewal procedure of tube", "family": "Drydock & Underwater Surveys", "subtopic": "Bottom Plug / Bedrock", "tid": "MUM-2023-10-2200", "tray": "new", "candidates": [ { "answer_id": "STERN-P03-002", "score": 0.5257993340492249, "sibling_score": 0.5257993340492249, "answer_score": null, "sibling_qid": "MUM-2026-03-2663-Q002", "sibling_text": "stern tube seal renewal in place", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Stern-tube seals: arrangement, air/lip seals, renewal/replacement and the vulcanized split-seal fitting method", "cross_family": false }, { "answer_id": "BLR-TUBE-P02-002", "score": 0.5174062848091125, "sibling_score": 0.5174062848091125, "answer_score": 0.45023865103721616, "sibling_qid": "KOL-2024-12-1792-Q006", "sibling_text": "criteria for plugging of boiler tube and renewal of tube", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Plugging a leaking boiler tube (temporary arrest)", "cross_family": true }, { "answer_id": "BLR-TUBE-P02-003", "score": 0.5048953294754028, "sibling_score": 0.5048953294754028, "answer_score": 0.4249070316553116, "sibling_qid": "KOL-2021-08-3439-Q003", "sibling_text": "leaky boiler tube to be renewed how", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Repairing, removing and renewing a boiler tube; Class formalities", "cross_family": true } ] }, { "qid": "MUM-2023-10-2200-Q006", "text": "3 arc welding safety precaution", "family": "Workshop & Welding", "subtopic": "Hot Work", "tid": "MUM-2023-10-2200", "tray": "review", "candidates": [ { "answer_id": "WELD-PATM-010", "score": 0.7567417025566101, "sibling_score": 0.7567417025566101, "answer_score": 0.5453585922718048, "sibling_qid": "KOL-2019-07-3260-Q002", "sibling_text": "overhead welding precaution", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Vertical and overhead arc welding – technique and precautions", "cross_family": false }, { "answer_id": "WELD-B-007", "score": 0.7496053576469421, "sibling_score": 0.7496053576469421, "answer_score": 0.5587846904993057, "sibling_qid": "KOL-2018-03-3132-Q004", "sibling_text": "precaution during carrying out a overhead welding process", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Overhead welding — precautions, checks and advantages", "cross_family": false }, { "answer_id": "WBS-C-001", "score": 0.7229227423667908, "sibling_score": 0.7229227423667908, "answer_score": null, "sibling_qid": "CHE-2026-03-0493-Q005", "sibling_text": "safety checks before gas welding", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding, brazing and soldering — what they are, the shipboard processes, and workshop safety", "cross_family": false } ] }, { "qid": "MUM-2023-10-2201-Q004", "text": "Boiler heavy vibration while firing ?", "family": "Boilers - Operations & Firing", "subtopic": "Boiler firing/vibration/noise troubleshooting", "tid": "MUM-2023-10-2201", "tray": "review", "candidates": [ { "answer_id": "BFM-330-003", "score": 0.8132002949714661, "sibling_score": 0.8132002949714661, "answer_score": 0.5670147955417633, "sibling_qid": "MUM-2025-09-2834-Q005", "sibling_text": "4 boiler vibrating during firing", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler vibration, backflow and furnace blowback during firing", "cross_family": false }, { "answer_id": "BLR-BSP-001", "score": 0.6783578991889954, "sibling_score": 0.6783578991889954, "answer_score": 0.5757550358772278, "sibling_qid": "MUM-2026-05-3196-Q004", "sibling_text": "3e tells you he started the boiler 2 times and both the times the boiler did not start and stopped with vibrations and loud sound may be it s because of panting what checks as 2e you will do", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler panting (combustion pulsation): causes, symptoms, and your actions as 2/E", "cross_family": false }, { "answer_id": "BFS-257-006", "score": 0.655200183391571, "sibling_score": 0.655200183391571, "answer_score": 0.5172832667827606, "sibling_qid": "MUM-2023-09-2193-Q006", "sibling_text": "boiler is back firing reasons", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler backfire / blowback / panting — causes, prevention, actions", "cross_family": false } ] }, { "qid": "MUM-2023-10-2748-Q001", "text": "Vessel sailed", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2023-10-2748", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.7639740109443665, "sibling_score": 0.7639740109443665, "answer_score": null, "sibling_qid": "MUM-2026-04-1320-Q002", "sibling_text": "ship sailed on", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7375065088272095, "sibling_score": 0.7375065088272095, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "SEA-CHEST-004", "score": 0.4306743621826172, "sibling_score": null, "answer_score": 0.4306743621826172, "sibling_qid": "", "sibling_text": "action if the grating or suction is blocked during sailing", "sibling_family": "", "via": "answer_title", "answer_title": "Action if the grating or suction is blocked during sailing", "cross_family": false } ] }, { "qid": "MUM-2023-11-0140-Q001", "text": "What about remaining functions & written.", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2023-11-0140", "tray": "new", "candidates": [ { "answer_id": "IMO-CODES-P03-002", "score": 0.5847025513648987, "sibling_score": 0.5847025513648987, "answer_score": null, "sibling_qid": "MUM-2026-03-0815-Q003", "sibling_text": "which function", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": false }, { "answer_id": "A6-NSEC-003", "score": 0.5250366926193237, "sibling_score": 0.5250366926193237, "answer_score": null, "sibling_qid": "CHE-2024-10-0010-Q001", "sibling_text": "nox reduction methods got both functions finally cleared class", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "NOx — formation, limits & reduction (SCR / EGR)", "cross_family": true }, { "answer_id": "LRHR-B-010", "score": 0.49962443113327026, "sibling_score": 0.49962443113327026, "answer_score": null, "sibling_qid": "KOL-2018-09-0221-Q005", "sibling_text": "hru function n everything", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Explain the HRU's operating principle and full operation. Draw it.", "cross_family": true } ] }, { "qid": "MUM-2023-11-0140-Q002", "text": "Types of ships sailed.", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2023-11-0140", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8167218565940857, "sibling_score": 0.8167218565940857, "answer_score": null, "sibling_qid": "CHE-2026-09-3938-Q001", "sibling_text": "types of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7802029848098755, "sibling_score": 0.7802029848098755, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7766692042350769, "sibling_score": 0.7766692042350769, "answer_score": 0.5094334453344345, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "MUM-2023-11-0140-Q004", "text": "Difference between DMLC Part 1 & 2.", "family": "MLC", "subtopic": "MLC / DMLC / Work-Rest", "tid": "MUM-2023-11-0140", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.6247475147247314, "sibling_score": 0.6247475147247314, "answer_score": 0.25193235874176023, "sibling_qid": "MUM-2026-01-0673-Q004", "sibling_text": "dmlc 1 and dmlc 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "MEB-MEC-P03-001", "score": 0.27736842185258864, "sibling_score": null, "answer_score": 0.27736842185258864, "sibling_qid": "", "sibling_text": "me b vs me c the core difference", "sibling_family": "", "via": "answer_title", "answer_title": "ME-B vs ME-C — the core difference", "cross_family": false }, { "answer_id": "SIMP-RULE-003", "score": 0.23191776871681213, "sibling_score": null, "answer_score": 0.23191776871681213, "sibling_qid": "", "sibling_text": "what is the difference between simpson s first rule and simpson s second rule assumed curve first second degree parabola second third degree cubic multipliers first 1 4 2 4 4 1 second 1 3 3 2 3 3 3 3 1", "sibling_family": "", "via": "answer_title", "answer_title": "What is the difference between Simpson's first rule and Simpson's second rule?", "cross_family": false } ] }, { "qid": "MUM-2023-11-0141-Q002", "text": "Content of ship structure certificate", "family": "Surveys - Statutory", "subtopic": "Safety Construction / Cargo Safety Cert", "tid": "MUM-2023-11-0141", "tray": "review", "candidates": [ { "answer_id": "CERT-LIST-P01-001", "score": 0.6904622912406921, "sibling_score": 0.6904622912406921, "answer_score": null, "sibling_qid": "KOL-2020-06-3340-Q004", "sibling_text": "which certificate will tell u about the class to which ship is classified", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "List the statutory certificates carried onboard a ship.", "cross_family": false }, { "answer_id": "CERT-LIST-P02-005", "score": 0.6750451922416687, "sibling_score": 0.6750451922416687, "answer_score": null, "sibling_qid": "MUM-2025-11-2475-Q001", "sibling_text": "why class certificate is there for ship", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Class certificate / classification certificate", "cross_family": false }, { "answer_id": "GA-GI-DWG-004", "score": 0.6728259325027466, "sibling_score": 0.6728259325027466, "answer_score": null, "sibling_qid": "KOC-2022-04-0070-Q016", "sibling_text": "structural related plans for ship", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "4. Which structural drawings or plans are referred to for a ship?", "cross_family": true } ] }, { "qid": "MUM-2023-11-0143-Q001", "text": "Types of ships…….I said Tanker and Bulk carrier", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2023-11-0143", "tray": "review", "candidates": [ { "answer_id": "SOLAS12-BC-A-001", "score": 0.8024187088012695, "sibling_score": 0.8024187088012695, "answer_score": 0.5826705634593964, "sibling_qid": "MUM-2026-06-3596-Q001", "sibling_text": "what type of ship types of bulk carriers", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "SOLAS definition and scope of a bulk carrier", "cross_family": false }, { "answer_id": "COT-01", "score": 0.7755753397941589, "sibling_score": 0.7755753397941589, "answer_score": 0.5554994881153107, "sibling_qid": "KOC-2026-04-0892-Q003", "sibling_text": "type of ship sailed tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Oil-tanker types, definitions and cargo capability", "cross_family": false }, { "answer_id": "BC-IMSBC-002", "score": 0.7585762739181519, "sibling_score": 0.7585762739181519, "answer_score": 0.5448085337877273, "sibling_qid": "MUM-2026-06-3384-Q002", "sibling_text": "offshore and bulk carrier", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "2. Bulk carrier construction and structural design", "cross_family": true } ] }, { "qid": "MUM-2023-11-0144-Q004", "text": "Life raft Pack A and Pack B?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Lifeboat / Davit / LSA", "tid": "MUM-2023-11-0144", "tray": "review", "candidates": [ { "answer_id": "LRHR-B-004", "score": 0.7687857747077942, "sibling_score": 0.7687857747077942, "answer_score": 0.5147626340389252, "sibling_qid": "MUM-2026-06-3361-Q004", "sibling_text": "solas pack a and pack b in life rafts", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What is the difference between a SOLAS A pack and a SOLAS B pack?", "cross_family": false }, { "answer_id": "SPAB-330-001", "score": 0.7687857747077942, "sibling_score": 0.7687857747077942, "answer_score": 0.49661186933517454, "sibling_qid": "MUM-2026-05-3315-Q004", "sibling_text": "solas pack a and pack b in life rafts", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "SOLAS Pack A and Pack B in liferafts — what they are and the difference", "cross_family": false }, { "answer_id": "LRHR-A-004", "score": 0.7687857747077942, "sibling_score": 0.7687857747077942, "answer_score": 0.46096370220184324, "sibling_qid": "MUM-2026-05-3312-Q002", "sibling_text": "solas pack a and pack b in life rafts", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Liferaft equipment as per SOLAS — the A pack and the B pack", "cross_family": false } ] }, { "qid": "MUM-2023-11-0144-Q005", "text": "Static test of lifeboat", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Lifeboat / Davit / LSA", "tid": "MUM-2023-11-0144", "tray": "review", "candidates": [ { "answer_id": "LB-SDT-A-001", "score": 0.771986186504364, "sibling_score": 0.771986186504364, "answer_score": 0.4749018609523773, "sibling_qid": "KOC-2022-01-0045-Q009", "sibling_text": "lifeboat static and dynamic test int", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat static and dynamic test — purpose and procedure", "cross_family": false }, { "answer_id": "LBT-TEST-B-004", "score": 0.7014437317848206, "sibling_score": 0.7014437317848206, "answer_score": null, "sibling_qid": "KOL-2019-08-0312-Q005", "sibling_text": "lifeboat testing static nd dynamic", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Tests carried out on the lifeboat/davit onboard (overview)", "cross_family": false }, { "answer_id": "LB-DAVIT-HRU-007", "score": 0.4498103380203247, "sibling_score": null, "answer_score": 0.4498103380203247, "sibling_qid": "", "sibling_text": "lifeboat static and dynamic load test static structure test launching appliance and attachments other than winch brakes factory static proof load 2 2 times mwl lsa 6 1 1 5 winch brake static test proof load 1 5 times mwl lsa 6 1 2 5", "sibling_family": "", "via": "answer_title", "answer_title": "Lifeboat static and dynamic load test", "cross_family": false } ] }, { "qid": "MUM-2023-11-0145-Q003", "text": "MLC (plenty cross questions )", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2023-11-0145", "tray": "new", "candidates": [ { "answer_id": "PSC-SURV-P01-001", "score": 0.5397039651870728, "sibling_score": 0.5397039651870728, "answer_score": null, "sibling_qid": "MUM-2025-11-2864-Q010", "sibling_text": "x many cross in this what is mou and why it is and all", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is a PSC MoU, and why is regional cooperation between port States required?", "cross_family": true }, { "answer_id": "FIRE-P01-01", "score": 0.5110479593276978, "sibling_score": 0.5110479593276978, "answer_score": null, "sibling_qid": "MUM-2023-11-0145-Q005", "sibling_text": "hypermist many cross questions", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist / water-mist system — draw and explain the machinery-space arrangement and normal working", "cross_family": true }, { "answer_id": "MARGIN-LINE-002", "score": 0.5099837779998779, "sibling_score": 0.5099837779998779, "answer_score": null, "sibling_qid": "KOC-2024-04-0334-Q008", "sibling_text": "margine line uses is it visible lots of cross questions in each", "sibling_family": "", "via": "sibling", "answer_title": "Why is the margin line imaginary, and not permanently marked?", "cross_family": false } ] }, { "qid": "MUM-2023-11-0145-Q006", "text": "Forepeak tank construction", "family": "", "subtopic": "Peak Tank Construction", "tid": "MUM-2023-11-0145", "tray": "review", "candidates": [ { "answer_id": "PPS-230-006", "score": 0.7321181297302246, "sibling_score": 0.7321181297302246, "answer_score": null, "sibling_qid": "MUM-2026-08-3829-Q005", "sibling_text": "forepeak tank construction", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Fore-end / fore-peak structure: draw and describe", "cross_family": false }, { "answer_id": "BSBH-420-002", "score": 0.6230051517486572, "sibling_score": 0.6230051517486572, "answer_score": 0.5053328067064286, "sibling_qid": "MUM-2026-05-3340-Q009", "sibling_text": "forepeak construction", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Fore-end / forepeak construction forward of the collision bulkhead — members and cross-section", "cross_family": false }, { "answer_id": "BCFS-002", "score": 0.5428354144096375, "sibling_score": 0.5428354144096375, "answer_score": null, "sibling_qid": "MUM-2024-09-1093-Q003", "sibling_text": "cascade tank construction", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "The cascade tank — purpose, location, construction, temperature control and abnormal steaming", "cross_family": false } ] }, { "qid": "MUM-2023-11-0147-Q001", "text": "Which ship sailed", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2023-11-0147", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.7993870973587036, "sibling_score": 0.7993870973587036, "answer_score": null, "sibling_qid": "MUM-2026-04-1320-Q002", "sibling_text": "ship sailed on", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7225809693336487, "sibling_score": 0.7225809693336487, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "INCL-EXP-B-002", "score": 0.40613649487495423, "sibling_score": null, "answer_score": 0.40613649487495423, "sibling_qid": "", "sibling_text": "b2 when and for which ships the experiment is carried out completion baseline every passenger ship regardless of size every cargo ship of length l 24 m and upwards the completion result determines lightship displacement and the longitudinal transverse and vertical position of the centre of gravity", "sibling_family": "", "via": "answer_title", "answer_title": "B2. When and for which ships the experiment is carried out", "cross_family": false } ] }, { "qid": "MUM-2023-11-0147-Q006", "text": "Solas chp 2 parts and name", "family": "SOLAS - General (HOLD)", "subtopic": "Solas Chapters Overview", "tid": "MUM-2023-11-0147", "tray": "review", "candidates": [ { "answer_id": "SOLAS-OVW-005", "score": 0.6722050309181213, "sibling_score": 0.6722050309181213, "answer_score": null, "sibling_qid": "MUM-2026-03-0813-Q016", "sibling_text": "solas chapter 2", "sibling_family": "SOLAS - General (HOLD)", "via": "sibling", "answer_title": "SOLAS Chapter II and its sub-divisions", "cross_family": false }, { "answer_id": "SOLAS-CH-002", "score": 0.6222373843193054, "sibling_score": 0.6222373843193054, "answer_score": null, "sibling_qid": "KOC-2025-01-0496-Q004", "sibling_text": "solas chapter 2", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS Chapter II-1 - construction, machinery and electrical installations", "cross_family": true }, { "answer_id": "SOLAS-CH-003", "score": 0.6027593612670898, "sibling_score": 0.6027593612670898, "answer_score": null, "sibling_qid": "KOC-2025-12-0769-Q007", "sibling_text": "solas chapter ii 2", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS Chapter II-2 - fire protection, detection and extinction", "cross_family": true } ] }, { "qid": "MUM-2023-11-0147-Q007", "text": "Solas chp 3", "family": "SOLAS - General (HOLD)", "subtopic": "Solas Chapters Overview", "tid": "MUM-2023-11-0147", "tray": "review", "candidates": [ { "answer_id": "LSA-CODE-001", "score": 0.6569380164146423, "sibling_score": 0.6569380164146423, "answer_score": null, "sibling_qid": "KOL-2016-11-0027-Q010", "sibling_text": "solas ch 3", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "SOLAS Chapter III and the LSA Code — what each is, and how they link", "cross_family": true }, { "answer_id": "SOLAS-CH-005", "score": 0.5667432546615601, "sibling_score": 0.5667432546615601, "answer_score": 0.3729420334100723, "sibling_qid": "KOC-2026-02-0804-Q003", "sibling_text": "solas chapter 3 9 15", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Combined SOLAS Chapters III, IX and XV", "cross_family": true }, { "answer_id": "SOLAS-CH-015", "score": 0.5603410601615906, "sibling_score": 0.5603410601615906, "answer_score": 0.33156825751066205, "sibling_qid": "MUM-2026-02-0752-Q007", "sibling_text": "solas all chapters 8 3 4 more", "sibling_family": "SOLAS - General (HOLD)", "via": "sibling", "answer_title": "SOLAS chapters overview - current count and scope", "cross_family": false } ] }, { "qid": "MUM-2023-11-0147-Q008", "text": "Marpol annex 4 discharge criteria,max speed how much", "family": "MARPOL - Annex IV (Sewage)", "subtopic": "Sewage Discharge", "tid": "MUM-2023-11-0147", "tray": "review", "candidates": [ { "answer_id": "STP-SEW-002", "score": 0.6580197215080261, "sibling_score": 0.6580197215080261, "answer_score": null, "sibling_qid": "MUM-2026-09-3947-Q006", "sibling_text": "marpol annex iv discharge criteria discharge rate", "sibling_family": "MARPOL - Annex IV (Sewage)", "via": "sibling", "answer_title": "Discharge criteria under Regulation 11", "cross_family": false }, { "answer_id": "OS-TRIP-001", "score": 0.6079963445663452, "sibling_score": 0.6079963445663452, "answer_score": null, "sibling_qid": "KOC-2025-09-1575-Q003", "sibling_text": "3 over speed of auxiliary engine", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "01. What is an overspeed trip / overspeed relay, and what is its purpose?", "cross_family": true }, { "answer_id": "SEW-DISCH-002", "score": 0.6024104952812195, "sibling_score": 0.6024104952812195, "answer_score": null, "sibling_qid": "MUM-2026-07-3694-Q005", "sibling_text": "marpol annex iv discharge criteria effluent details and limits", "sibling_family": "MARPOL - Annex IV (Sewage)", "via": "sibling", "answer_title": "2. MARPOL Annex IV sewage discharge criteria", "cross_family": false } ] }, { "qid": "MUM-2023-11-0147-Q009", "text": "Dynamic loading", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Lifeboat Static / Dynamic Test", "tid": "MUM-2023-11-0147", "tray": "review", "candidates": [ { "answer_id": "LB-SDT-A-001", "score": 0.8080671429634094, "sibling_score": 0.8080671429634094, "answer_score": null, "sibling_qid": "KOC-2026-05-0008-Q005", "sibling_text": "static load dynamic load", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat static and dynamic test — purpose and procedure", "cross_family": false }, { "answer_id": "DRG-583-A-001", "score": 0.6335621476173401, "sibling_score": 0.6335621476173401, "answer_score": null, "sibling_qid": "MUM-2025-10-0504-Q005", "sibling_text": "onload and offload", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "On-load and off-load release: what each one is, and why both are fitted", "cross_family": false }, { "answer_id": "CPP-GRM-05", "score": 0.5830873250961304, "sibling_score": 0.5830873250961304, "answer_score": 0.3309787318110466, "sibling_qid": "KOC-2025-02-1030-Q007", "sibling_text": "define static and dynamic load in engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Static and dynamic engine loads", "cross_family": true } ] }, { "qid": "MUM-2023-11-0148-Q005", "text": "Propeller advancements", "family": "General Marine Engineering", "subtopic": "Shafting / Propeller / CPP", "tid": "MUM-2023-11-0148", "tray": "review", "candidates": [ { "answer_id": "SHAFT-CPP-005", "score": 0.7843471765518188, "sibling_score": 0.7843471765518188, "answer_score": 0.5619442462921143, "sibling_qid": "KOC-2025-12-1079-Q005", "sibling_text": "latest propeller advancements", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "5. Propeller types, design criteria & latest developments", "cross_family": false }, { "answer_id": "SPR-STERN-006", "score": 0.7293452024459839, "sibling_score": 0.7293452024459839, "answer_score": 0.5333144545555114, "sibling_qid": "KOC-2021-07-0013-Q009", "sibling_text": "latest advancement in propeller", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Propeller types & special propulsors", "cross_family": true }, { "answer_id": "SHAFT-CPP-007", "score": 0.6720324158668518, "sibling_score": 0.6720324158668518, "answer_score": null, "sibling_qid": "MUM-2023-09-2747-Q013", "sibling_text": "propellar damage fit new one steps", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "7. Propeller damage, replacement & new-propeller fitting", "cross_family": false } ] }, { "qid": "MUM-2023-11-0149-Q004", "text": "Difference between DPA and your ship’s Superintendent.", "family": "ISM Code", "subtopic": "Designated Person / DPA", "tid": "MUM-2023-11-0149", "tray": "new", "candidates": [ { "answer_id": "ISM-DPA-004", "score": 0.5523511171340942, "sibling_score": 0.5523511171340942, "answer_score": null, "sibling_qid": "KOC-2023-03-0158-Q004", "sibling_text": "ism chapters masters overriding authority role of dpa", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Master's overriding authority and the DPA relationship (ISM chapters)", "cross_family": false }, { "answer_id": "ISM-DPA-001", "score": 0.5443310141563416, "sibling_score": 0.5443310141563416, "answer_score": 0.4211172670125961, "sibling_qid": "KOC-2023-07-0201-Q007", "sibling_text": "dpa duties", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Role, duties and responsibility of the Designated Person Ashore (DPA)", "cross_family": false }, { "answer_id": "ISM-DPA-003", "score": 0.5417816042900085, "sibling_score": 0.5417816042900085, "answer_score": 0.40113829374313353, "sibling_qid": "KOL-2025-09-1081-Q006", "sibling_text": "ism full details masters responsibilities and role of dpa", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Master's responsibilities and the role of the DPA under the ISM Code", "cross_family": false } ] }, { "qid": "MUM-2023-11-0149-Q005", "text": "Lifeboat davit maintenance.", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Lifeboat / Davit / LSA", "tid": "MUM-2023-11-0149", "tray": "review", "candidates": [ { "answer_id": "DRG-B-013", "score": 0.7968281507492065, "sibling_score": 0.7968281507492065, "answer_score": null, "sibling_qid": "KOC-2024-02-1327-Q010", "sibling_text": "what all maintenance done on lifeboat davit", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "The test and examination regime — and what PSC looks at", "cross_family": false }, { "answer_id": "DRG-B-006", "score": 0.7855516672134399, "sibling_score": 0.7855516672134399, "answer_score": null, "sibling_qid": "KOL-2021-12-0583-Q005", "sibling_text": "lifeboat yearly maintenance as 2e lowering and davit and fall maintenance", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Falls — maintenance, end-for-ending and renewal", "cross_family": false }, { "answer_id": "DRG-B-002", "score": 0.7614484429359436, "sibling_score": 0.7614484429359436, "answer_score": null, "sibling_qid": "KOL-2018-01-0145-Q007", "sibling_text": "long term maintenance on life boat davit winches", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "The lifeboat winch — construction, hoisting and long-term maintenance", "cross_family": false } ] }, { "qid": "MUM-2023-11-0150-Q001", "text": "Solas chapter 11 deals with what? And any codes related to it?", "family": "SOLAS - General (HOLD)", "subtopic": "Solas Chapters Overview", "tid": "MUM-2023-11-0150", "tray": "new", "candidates": [ { "answer_id": "SOLAS-CH-012", "score": 0.5705641508102417, "sibling_score": 0.5705641508102417, "answer_score": 0.3863388478755951, "sibling_qid": "MUM-2022-07-0015-Q016", "sibling_text": "solas chapter 11 1 what it includes", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS XI-1, XI-2 and XIII - safety, security and audit", "cross_family": true }, { "answer_id": "SOLAS-CH-015", "score": 0.5529144406318665, "sibling_score": 0.5529144406318665, "answer_score": null, "sibling_qid": "MUM-2025-03-0242-Q006", "sibling_text": "solas chap 11", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS chapters overview - current count and scope", "cross_family": true }, { "answer_id": "SOLAS-XII-BC-002", "score": 0.5346782803535461, "sibling_score": 0.5346782803535461, "answer_score": null, "sibling_qid": "MUM-2026-03-2931-Q002", "sibling_text": "solas chap xi name and what are covered", "sibling_family": "SOLAS - General (HOLD)", "via": "sibling", "answer_title": "Explain SOLAS Chapter XII — the additional safety measures for bulk carriers", "cross_family": false } ] }, { "qid": "MUM-2023-11-0151-Q001", "text": "What is critical equipment? Name few critical equipments on board?", "family": "ISM Code", "subtopic": "ISM - Non-conformity / Maintenance", "tid": "MUM-2023-11-0151", "tray": "review", "candidates": [ { "answer_id": "CREQ-542-002", "score": 0.7498849034309387, "sibling_score": 0.7498849034309387, "answer_score": 0.5611896574497223, "sibling_qid": "CHE-2026-05-0609-Q005", "sibling_text": "critical equipment", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Name examples of critical equipment or critical machinery onboard.", "cross_family": false }, { "answer_id": "CREQ-542-001", "score": 0.7101491093635559, "sibling_score": 0.7101491093635559, "answer_score": 0.4618197202682495, "sibling_qid": "MUM-2024-02-2755-Q001", "sibling_text": "critical equipment on board under what code", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Under which code is critical equipment addressed onboard?", "cross_family": false }, { "answer_id": "CREQ-542-003", "score": 0.6397628784179688, "sibling_score": 0.6397628784179688, "answer_score": 0.4737454056739807, "sibling_qid": "MUM-2026-06-3624-Q004", "sibling_text": "y how we do critical equipment checklist", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What criteria are used for choosing or identifying critical equipment?", "cross_family": false } ] }, { "qid": "MUM-2023-11-0151-Q002", "text": "Critical spares name a few", "family": "ISM Code", "subtopic": "Critical Equipment", "tid": "MUM-2023-11-0151", "tray": "review", "candidates": [ { "answer_id": "ISM-AUD-P02-005", "score": 0.6911776661872864, "sibling_score": 0.6911776661872864, "answer_score": null, "sibling_qid": "CHE-2026-05-0609-Q006", "sibling_text": "critical spare", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM and maintenance: PMS, risk assessment and critical spares", "cross_family": false }, { "answer_id": "CREQ-542-002", "score": 0.5810170769691467, "sibling_score": 0.5810170769691467, "answer_score": 0.39147399365901947, "sibling_qid": "MUM-2026-02-0770-Q001", "sibling_text": "critical equipments was only interested in names not how to find", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Name examples of critical equipment or critical machinery onboard.", "cross_family": false }, { "answer_id": "ISM-AUDIT-P01-001", "score": 0.5518512725830078, "sibling_score": 0.5518512725830078, "answer_score": null, "sibling_qid": "KOC-2026-05-2133-Q019", "sibling_text": "what are all the critical spares with respect to bride equipment and navigation internal ques", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Preparing engine room, records and documents for ISM/SMS audit (2/E)", "cross_family": true } ] }, { "qid": "MUM-2023-11-0151-Q006", "text": "Balanced Rudder", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "MUM-2023-11-0151", "tray": "review", "candidates": [ { "answer_id": "TRS-001", "score": 0.6576875448226929, "sibling_score": 0.6576875448226929, "answer_score": null, "sibling_qid": "KOL-2019-05-3236-Q005", "sibling_text": "rudder stock twisted how will you balance it how to find changed mishsip position", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "The rudder stock is twisted — how do you proceed, recover the true midship datum, and what regulations let you proceed to the next port?", "cross_family": false }, { "answer_id": "STEER-055-A-004", "score": 0.6343336701393127, "sibling_score": 0.6343336701393127, "answer_score": null, "sibling_qid": "KOL-2019-02-3212-Q005", "sibling_text": "rudder is taking more to come from one side to the other reasons and maintenance", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Hydraulic faults — air, sluggish response, locking, leakage", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.6237087249755859, "sibling_score": 0.6237087249755859, "answer_score": null, "sibling_qid": "MUM-2026-06-3584-Q005", "sibling_text": "what takes weight of rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false } ] }, { "qid": "MUM-2023-11-1066-Q003", "text": "Types of engine and ship sailed", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "MUM-2023-11-1066", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8287971615791321, "sibling_score": 0.8287971615791321, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.7766715884208679, "sibling_score": 0.7766715884208679, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q001", "sibling_text": "type of ship sailed and engines details", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7470347881317139, "sibling_score": 0.7470347881317139, "answer_score": null, "sibling_qid": "KOL-2025-12-2031-Q002", "sibling_text": "type of ship and engine sailed engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "MUM-2023-11-1066-Q004", "text": "Written and viva status", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2023-11-1066", "tray": "new", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.6023620963096619, "sibling_score": 0.6023620963096619, "answer_score": null, "sibling_qid": "MUM-2026-03-1294-Q001", "sibling_text": "status of writtens and orals", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.4436637759208679, "sibling_score": 0.4436637759208679, "answer_score": null, "sibling_qid": "CHE-2026-04-0157-Q001", "sibling_text": "type of vessel and written status", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": true }, { "answer_id": "DUS-P1-02", "score": 0.4237176775932312, "sibling_score": 0.4237176775932312, "answer_score": null, "sibling_qid": "KOL-2025-08-3851-Q006", "sibling_text": "drydock plans rudder checks cross questions what about other written oral exams status told waiting for naval written result to come all other paper cleared", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Plans, drawings and special tools kept ready for drydock — engine-department view", "cross_family": true } ] }, { "qid": "MUM-2023-11-1066-Q005", "text": "Engine nomenclature", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2023-11-1066", "tray": "review", "candidates": [ { "answer_id": "ENG-NOM-005", "score": 0.8081522583961487, "sibling_score": 0.8081522583961487, "answer_score": 0.5280656188726425, "sibling_qid": "MUM-2026-05-3153-Q007", "sibling_text": "engines nomenclature", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false }, { "answer_id": "ETP-344-P03-003", "score": 0.5837772667407989, "sibling_score": null, "answer_score": 0.5837772667407989, "sibling_qid": "", "sibling_text": "engine nomenclature layout mark number and engine constant designation order man b w cylinders stroke bore letter k l s g bore in cm m programme concept e electronic c camshaft design c compact b camshaft controlled exhaust hybrid mark number gi if gas injection tier rating stroke bore letters k short l long s super long g ultra long green the ratios are approximate design values not exact", "sibling_family": "", "via": "answer_title", "answer_title": "Engine nomenclature, layout, mark number and engine constant", "cross_family": false }, { "answer_id": "ENG-NOM-001", "score": 0.5670371383428573, "sibling_score": null, "answer_score": 0.5670371383428573, "sibling_qid": "", "sibling_text": "nomenclature of me and ae asked together main engine and auxiliary engine are decoded on different rules don t run one set of letters across both main engine man b w two stroke cylinders stroke letter bore in cm programme letter control letter then compact version", "sibling_family": "", "via": "answer_title", "answer_title": "Nomenclature of ME and AE (asked together)", "cross_family": false } ] }, { "qid": "MUM-2023-11-1067-Q002", "text": "Boiler feed water control and its system.", "family": "Boilers - Operations & Firing", "subtopic": "Boiler Operations", "tid": "MUM-2023-11-1067", "tray": "review", "candidates": [ { "answer_id": "DP-TX-003", "score": 0.8349497318267822, "sibling_score": 0.8349497318267822, "answer_score": 0.6044600635766982, "sibling_qid": "KOL-2020-07-1539-Q003", "sibling_text": "boiler feed water control explain", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler feed-water control with the DP cell — single, two and three-element", "cross_family": false }, { "answer_id": "LWL-002", "score": 0.7882471084594727, "sibling_score": 0.7882471084594727, "answer_score": null, "sibling_qid": "CHE-2026-05-0647-Q003", "sibling_text": "element boiler water control", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "What is the difference between one-, two- and three-element boiler water level control, and what are the water level controllers?", "cross_family": false }, { "answer_id": "LWL-001", "score": 0.7806475758552551, "sibling_score": 0.7806475758552551, "answer_score": 0.5718650072813034, "sibling_qid": "KOL-2025-07-2808-Q006", "sibling_text": "three elements water control system in boiler water and pid working", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Explain three-element boiler water level control — the three elements, how it removes swell and shrinkage, and how the PID works", "cross_family": false } ] }, { "qid": "MUM-2023-11-1411-Q002", "text": "Residual magnetism", "family": "Electrical - Generator & Alternator", "subtopic": "Residual Magnetism / Flashing", "tid": "MUM-2023-11-1411", "tray": "review", "candidates": [ { "answer_id": "RES-MAG-001", "score": 0.8040727972984314, "sibling_score": 0.8040727972984314, "answer_score": 0.5074597299098969, "sibling_qid": "KOC-2026-02-0830-Q002", "sibling_text": "residual magnetism", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Residual magnetism — what it is, where it is stored, how it is lost and how you restore it", "cross_family": false }, { "answer_id": "AR-263-001", "score": 0.3512875780463219, "sibling_score": null, "answer_score": 0.3512875780463219, "sibling_qid": "", "sibling_text": "what is armature reaction and where is it found armature mmf from load current acting on the main field mmf no load current no reaction with brushes on neutral the dc machine effect is mainly cross magnetizing pole tip saturation still gives a small net flux weakening a true demagnetizing component comes in only when the brushes are shifted off neutral", "sibling_family": "", "via": "answer_title", "answer_title": "What is armature reaction, and where is it found?", "cross_family": false }, { "answer_id": "XFMR-THY-G-004", "score": 0.346344929933548, "sibling_score": null, "answer_score": 0.346344929933548, "sibling_qid": "", "sibling_text": "4 transformer leakage flux and magnetic reluctance", "sibling_family": "", "via": "answer_title", "answer_title": "4. Transformer leakage flux and magnetic reluctance", "cross_family": false } ] }, { "qid": "MUM-2023-11-1413-Q001", "text": "Murthy sir and Mishra sir Types of ship sailed Type of Engine", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "MUM-2023-11-1413", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.7474848628044128, "sibling_score": 0.7474848628044128, "answer_score": null, "sibling_qid": "MUM-2026-06-3490-Q006", "sibling_text": "engine sailed type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.7197201251983643, "sibling_score": 0.7197201251983643, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q001", "sibling_text": "type of ship sailed and engines details", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.6909240484237671, "sibling_score": 0.6909240484237671, "answer_score": null, "sibling_qid": "KOL-2025-12-2031-Q002", "sibling_text": "type of ship and engine sailed engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "MUM-2023-11-1413-Q002", "text": "Maintenance on starter, what all precautions to take and what all things to be done.", "family": "Electrical - Motors & Starters", "subtopic": "Star-Delta Starter", "tid": "MUM-2023-11-1413", "tray": "review", "candidates": [ { "answer_id": "STR-DEC-A-001", "score": 0.7184757590293884, "sibling_score": 0.7184757590293884, "answer_score": null, "sibling_qid": "MUM-2022-09-1355-Q008", "sibling_text": "maintenanace on starters", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "STARTER-DEC-B-001", "score": 0.6295461654663086, "sibling_score": 0.6295461654663086, "answer_score": null, "sibling_qid": "MUM-2022-11-1366-Q004", "sibling_text": "how do you decide which type of starter to be used", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Selecting the right starter for a motor", "cross_family": false }, { "answer_id": "STARTER-DEC-B-002", "score": 0.6253581643104553, "sibling_score": 0.6253581643104553, "answer_score": null, "sibling_qid": "KOL-2024-10-2737-Q008", "sibling_text": "importance of starter and it s safety", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Why a starter is needed & reducing starting current", "cross_family": false } ] }, { "qid": "MUM-2023-11-1415-Q002", "text": "Why resistor provided i didn't understand what he wanted", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Zener / Diode / Rectifier", "tid": "MUM-2023-11-1415", "tray": "new", "candidates": [ { "answer_id": "TC-A-011", "score": 0.5372900366783142, "sibling_score": 0.5372900366783142, "answer_score": 0.30877333134412766, "sibling_qid": "KOC-2025-10-1593-Q003", "sibling_text": "how will u identify resistor", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Identifying a resistor — colour code, value and rating", "cross_family": false }, { "answer_id": "RCC-568-001", "score": 0.5095135569572449, "sibling_score": 0.5095135569572449, "answer_score": 0.32090002596378325, "sibling_qid": "KOC-2023-04-0181-Q011", "sibling_text": "how to find resistor value", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Resistor colour code — read the bands and find the value", "cross_family": false }, { "answer_id": "RCC-568-002", "score": 0.5033445358276367, "sibling_score": 0.5033445358276367, "answer_score": 0.3706553667783737, "sibling_qid": "KOC-2026-03-1721-Q010", "sibling_text": "how will you find resistor capacity", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Finding a resistor's rating — the “capacity” question", "cross_family": false } ] }, { "qid": "MUM-2023-11-1415-Q005", "text": "How to change plc battery", "family": "Electrical - Electronics & Power Conversion", "subtopic": "PLC", "tid": "MUM-2023-11-1415", "tray": "review", "candidates": [ { "answer_id": "EPC-P03-002", "score": 0.8584665060043335, "sibling_score": 0.8584665060043335, "answer_score": null, "sibling_qid": "MUM-2026-01-1841-Q005", "sibling_text": "how to change a battery of plc", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What are the components and parts of a PLC — including the memory types and what data is stored in each?", "cross_family": false }, { "answer_id": "BDC-P01-03", "score": 0.7374213933944702, "sibling_score": 0.7374213933944702, "answer_score": null, "sibling_qid": "MUM-2026-04-2953-Q006", "sibling_text": "plc battery voltage", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Nickel-cadmium (alkaline) battery — construction, working and cell data", "cross_family": false }, { "answer_id": "BATT-TYPE-001", "score": 0.7370672821998596, "sibling_score": 0.7370672821998596, "answer_score": null, "sibling_qid": "MUM-2026-07-3675-Q005", "sibling_text": "type of plc battery", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What type of battery is used onboard, and how do you select one?", "cross_family": false } ] }, { "qid": "MUM-2023-11-1416-Q002", "text": "PLC battery changing", "family": "Electrical - Electronics & Power Conversion", "subtopic": "PLC", "tid": "MUM-2023-11-1416", "tray": "review", "candidates": [ { "answer_id": "EPC-P03-002", "score": 0.8472674489021301, "sibling_score": 0.8472674489021301, "answer_score": null, "sibling_qid": "MUM-2026-01-1841-Q005", "sibling_text": "how to change a battery of plc", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What are the components and parts of a PLC — including the memory types and what data is stored in each?", "cross_family": false }, { "answer_id": "BDC-P01-03", "score": 0.7596036791801453, "sibling_score": 0.7596036791801453, "answer_score": null, "sibling_qid": "MUM-2026-04-2953-Q006", "sibling_text": "plc battery voltage", "sibling_family": "Electrical - 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What bearings used in M/E and A/E turbocharger.", "family": "Turbocharger", "subtopic": "TC Bearing", "tid": "MUM-2023-11-2204", "tray": "review", "candidates": [ { "answer_id": "TURBO-CS-P03-008", "score": 0.6758665442466736, "sibling_score": 0.6758665442466736, "answer_score": 0.5402624070644378, "sibling_qid": "CHE-2026-08-3882-Q006", "sibling_text": "turbo charger bearing types", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharger bearings: types, lubrication, damage and action", "cross_family": false }, { "answer_id": "TCS-059-P04-006", "score": 0.6406566500663757, "sibling_score": 0.6406566500663757, "answer_score": 0.5510714590549469, "sibling_qid": "KOL-2023-12-3665-Q003", "sibling_text": "in radial turbocharger what kind of bearing used arrangement for axial thrust", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Bearings and axial thrust (radial turbocharger)", "cross_family": false }, { "answer_id": "TC-OVHL-002", "score": 0.6303514838218689, "sibling_score": 0.6303514838218689, "answer_score": null, "sibling_qid": "KOL-2025-03-3757-Q001", "sibling_text": "ae turbocharger overhauling balancing how to change bearing t c specifications", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Auxiliary-engine turbocharger overhaul and checks", "cross_family": false } ] }, { "qid": "MUM-2023-11-2205-Q003", "text": "Main bearing removal", "family": "2-Stroke - 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Water Treatment & Chemistry", "subtopic": "Boiler Water Test / Treatment", "tid": "MUM-2023-11-2205", "tray": "new", "candidates": [ { "answer_id": "BLR-SURV-P02-004", "score": 0.5554820895195007, "sibling_score": 0.5554820895195007, "answer_score": null, "sibling_qid": "MUM-2026-06-3564-Q002", "sibling_text": "tests on boiler structure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": true }, { "answer_id": "BWTEST-A-001", "score": 0.5320394039154053, "sibling_score": 0.5320394039154053, "answer_score": 0.34415462613105774, "sibling_qid": "MUM-2022-11-2715-Q026", "sibling_text": "boiler water tests with all parameters", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": true }, { "answer_id": "NDT-METH-P01-001", "score": 0.4712350368499756, "sibling_score": 0.4712350368499756, "answer_score": null, "sibling_qid": "MUM-2024-01-2216-Q006", "sibling_text": "tests destructive and non destructive", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "NDT methods, NDT vs destructive testing, and onboard use", "cross_family": true } ] }, { "qid": "MUM-2023-11-2208-Q001", "text": "Introduce yourself", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2023-11-2208", "tray": "new", "candidates": [ { "answer_id": "MEB-MEC-P03-005", "score": 0.48772045969963074, "sibling_score": 0.48772045969963074, "answer_score": null, "sibling_qid": "MUM-2024-11-0965-Q002", "sibling_text": "brief review about me and rt flex engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "MAN ME vs Sulzer / Wärtsilä RT-flex", "cross_family": true }, { "answer_id": "ENG-NOM-005", "score": 0.4839745759963989, "sibling_score": 0.4839745759963989, "answer_score": null, "sibling_qid": "MUM-2026-09-3934-Q001", "sibling_text": "nomenclature of me", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true }, { "answer_id": "EICU-MAN-P01-002", "score": 0.46922406554222107, "sibling_score": 0.46922406554222107, "answer_score": null, "sibling_qid": "KOC-2024-07-1000-Q002", "sibling_text": "me c explain", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "ME / ME-C / ME-B manoeuvring system — diagram and explanation", "cross_family": true } ] }, { "qid": "MUM-2023-11-2208-Q002", "text": "What type of ships ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2023-11-2208", "tray": "review", "candidates": [ { "answer_id": "LLST-AB-001", "score": 0.8142119646072388, "sibling_score": 0.8142119646072388, "answer_score": 0.509778618812561, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.7884953618049622, "sibling_score": 0.7884953618049622, "answer_score": 0.5124546378850937, "sibling_qid": "MUM-2026-02-0731-Q002", "sibling_text": "what type of ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.7555100321769714, "sibling_score": 0.7555100321769714, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false } ] }, { "qid": "MUM-2023-11-2208-Q003", "text": "What type of engine ?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2023-11-2208", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.7481136322021484, "sibling_score": 0.7481136322021484, "answer_score": null, "sibling_qid": "KOL-2026-03-2048-Q001", "sibling_text": "type of engine done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.7442948222160339, "sibling_score": 0.7442948222160339, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-001", "score": 0.43596474230289456, "sibling_score": null, "answer_score": 0.43596474230289456, "sibling_qid": "", "sibling_text": "1 turbocharger type main engine vs generator engine compressor is centrifugal in both cases only the turbine type differs large slow speed main engine axial flow turbine single stage constant pressure system", "sibling_family": "", "via": "answer_title", "answer_title": "1. Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "MUM-2023-11-2209-Q002", "text": "Preparation for Main engine unit decarb", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE vs ME Differences", "tid": "MUM-2023-11-2209", "tray": "review", "candidates": [ { "answer_id": "DCB-OVH-001", "score": 0.6953041553497314, "sibling_score": 0.6953041553497314, "answer_score": 0.48653166890144345, "sibling_qid": "CHE-2025-08-0438-Q002", "sibling_text": "how you will prepare for main engine decarb as 2 e", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Preparing for main-engine / unit decarb as 2/E", "cross_family": true }, { "answer_id": "AEDEC-291-001", "score": 0.6810430884361267, "sibling_score": 0.6810430884361267, "answer_score": 0.5434264719486236, "sibling_qid": "KOC-2026-03-2009-Q003", "sibling_text": "work done onboard generator decarb", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "1. AE decarb / overhaul — preparation and full procedure", "cross_family": false }, { "answer_id": "AEDEC-291-006", "score": 0.6521309018135071, "sibling_score": 0.6521309018135071, "answer_score": null, "sibling_qid": "CHE-2026-08-3875-Q007", "sibling_text": "aux engine measurements during decarb", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "6. 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Why marpol sample?", "family": "MARPOL - General & Compliance", "subtopic": "Bunker Sample Storage", "tid": "MUM-2023-11-2210", "tray": "review", "candidates": [ { "answer_id": "BUNK-SAMP-002", "score": 0.7413540482521057, "sibling_score": 0.7413540482521057, "answer_score": 0.5529380202293396, "sibling_qid": "KOC-2025-07-0625-Q005", "sibling_text": "4 bunker sample in use marpol ship sample difference", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "The three MARPOL fuel-oil samples: delivered, in-use, onboard", "cross_family": false }, { "answer_id": "BUNK-SAMP-005", "score": 0.6384039521217346, "sibling_score": 0.6384039521217346, "answer_score": 0.5261305093765258, "sibling_qid": "KOL-2025-09-1030-Q006", "sibling_text": "bunker sample minimum no plus how many month s to keep onboard lab sample lost in the way what to do ship sample leaked too den what to do", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Number of samples, retention period, storage and lost or leaked samples", "cross_family": false }, { "answer_id": "BUNK-SAMP-001", "score": 0.5823151469230652, "sibling_score": 0.5823151469230652, "answer_score": 0.5529876708984375, "sibling_qid": "KOL-2022-10-0693-Q005", "sibling_text": "bunker sample procedure", "sibling_family": "MARPOL - 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Open circuits, continuity and checking a fuse with a multimeter", "cross_family": false } ] }, { "qid": "MUM-2023-12-1419-Q011", "text": "If PLC for soft starter failed, how would you order new PLC?", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2023-12-1419", "tray": "new", "candidates": [ { "answer_id": "EPC-P03-003", "score": 0.5850220918655396, "sibling_score": 0.5850220918655396, "answer_score": 0.4442252963781357, "sibling_qid": "KOC-2025-03-1516-Q009", "sibling_text": "plc is defective your actions", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "PLC maintenance — what is a hardware test? 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taken", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "", "tid": "MUM-2023-12-2214", "tray": "review", "candidates": [ { "answer_id": "XHEAD-303-005", "score": 0.8044829964637756, "sibling_score": 0.8044829964637756, "answer_score": 0.5706583440303802, "sibling_qid": "KOL-2026-01-3906-Q005", "sibling_text": "crosshead clearance which position and value", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead guide and shoe clearances: how and where taken, limits", "cross_family": false }, { "answer_id": "XHD-BRG-B-004", "score": 0.7887651324272156, "sibling_score": 0.7887651324272156, "answer_score": 0.5306896060705185, "sibling_qid": "MUM-2026-05-3257-Q002", "sibling_text": "how to take crosshead bearing clearance at how many positions", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Measuring crosshead bearing and guide-shoe clearances", "cross_family": false }, { "answer_id": 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is carried out?", "family": "Surveys & Certification", "subtopic": "Additional Survey", "tid": "MUM-2024-01-0156", "tray": "review", "candidates": [ { "answer_id": "ISM-AUDIT-P01-002", "score": 0.7688232064247131, "sibling_score": 0.7688232064247131, "answer_score": null, "sibling_qid": "KOL-2024-01-0806-Q002", "sibling_text": "as per ism when additional survey is carried out", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM/SMS audits and verifications — types, who conducts them, intervals and validity", "cross_family": true }, { "answer_id": "CSAS-SURV-004", "score": 0.6209853887557983, "sibling_score": 0.6209853887557983, "answer_score": null, "sibling_qid": "KOC-2025-03-0571-Q009", "sibling_text": "why additional survey is carried out", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Annual vs intermediate vs periodical vs additional survey", "cross_family": true }, { "answer_id": "SURV-GEN-004", "score": 0.6107410192489624, 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Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "MUM-2024-01-1070-Q007", "text": "Main air comp why plate type valves used", "family": "Air Compressor", "subtopic": "Reciprocating Compressor", "tid": "MUM-2024-01-1070", "tray": "new", "candidates": [ { "answer_id": "MAC-598-001", "score": 0.5587590336799622, "sibling_score": 0.5587590336799622, "answer_score": 0.46884138882160187, "sibling_qid": "MUM-2025-09-2429-Q005S2", "sibling_text": "decider ques the compressor valve has so many parts why the construction of valve is so complex", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "The main air compressor valve — arrangement, parts, and why the construction is so complex", "cross_family": false }, { "answer_id": "ACSS-003", "score": 0.5452969670295715, "sibling_score": 0.5452969670295715, "answer_score": null, "sibling_qid": "KOC-2025-11-1977-Q001", "sibling_text": "main air compressor working advntages of multistages what all are the safeties provided on compressor reasons for lifting of safety valves", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Multistage working, cooling, stage arrangement and stage faults", "cross_family": false }, { "answer_id": "MAC-353-003", "score": 0.5362919569015503, "sibling_score": 0.5362919569015503, "answer_score": 0.44119772017002107, "sibling_qid": "CHE-2026-03-0486-Q004", "sibling_text": "difference between suction valve and discharge valve of air comp", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Main air compressor suction / delivery valve inspection and overhaul", "cross_family": false } ] }, { "qid": "MUM-2024-01-1070-Q010", "text": "6205ZZ C3 bearing. 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Generator & Alternator", "subtopic": "Voltage Not Coming", "tid": "MUM-2024-01-1421", "tray": "review", "candidates": [ { "answer_id": "RES-MAG-002", "score": 0.7930788397789001, "sibling_score": 0.7930788397789001, "answer_score": 0.5365218371152878, "sibling_qid": "KOL-2023-04-2646-Q005", "sibling_text": "alternator started after many days and voltage not developing", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Generator started but no voltage developing — reasons, and your action as Second Engineer", "cross_family": false }, { "answer_id": "NO-VOLT-001", "score": 0.7845218777656555, "sibling_score": 0.7845218777656555, "answer_score": 0.5789360731840133, "sibling_qid": "MUM-2026-02-1981-Q002", "sibling_text": "alternator started no voltage", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "The 3/E reports the generator has started but no voltage is showing — reasons, and your actions as 2/E", "cross_family": false }, { "answer_id": "NO-VOLT-003", "score": 0.5368168532848357, "sibling_score": null, "answer_score": 0.5368168532848357, "sibling_qid": "", "sibling_text": "started after a long standby or in drydock and no voltage develops causes and how do you restore it two independent families insulation gone down while idle and excitation that has decayed or been disturbed test both finding one does not clear the other inspect and clean before you test debris salt hygroscopic dust and moisture on the winding outhang are what pull the reading down", "sibling_family": "", "via": "answer_title", "answer_title": "Started after a long standby or in drydock and no voltage develops — causes, and how do you restore it?", "cross_family": false } ] }, { "qid": "MUM-2024-01-1421-Q003", "text": "Reversepower relay how to test , calibration of reversepower relay", "family": "Electrical - Generator & Alternator", "subtopic": "Reverse Power Trip", "tid": "MUM-2024-01-1421", "tray": "review", "candidates": [ { "answer_id": "RPT-C-002", "score": 0.759666919708252, "sibling_score": 0.759666919708252, "answer_score": 0.5576059937477111, "sibling_qid": "KOL-2023-06-2663-Q004", "sibling_text": "how to test reverse power relay", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Testing & trying out the reverse power trip — onboard, at survey, and when it fails", "cross_family": false }, { "answer_id": "OCR-185-007", "score": 0.5221083998680115, "sibling_score": null, "answer_score": 0.5221083998680115, "sibling_qid": "", "sibling_text": "relay calibration and the ocr s place in generator protection calibration inject known multiples of the plug setting measure operating time compare with the maker s curve within tolerance confirm trip to the breaker out of tolerance adjust older induction relay or correct settings numerical then re test", "sibling_family": "", "via": "answer_title", "answer_title": "Relay calibration and the OCR's place in generator protection", "cross_family": false }, { "answer_id": "RPT-C-001", "score": 0.49361337423324586, "sibling_score": null, "answer_score": 0.49361337423324586, "sibling_qid": "", "sibling_text": "reverse power in the paralleling picture where it sits among the alternator safeties reverse power a paralleled set is motored by the others after its prime mover fails while its breaker is still closed it is sensed as reversepower the relay reads voltage and current and the phase angle between them and acts on real power direction don t call it a simple reverse current trip on dc you can use reve", "sibling_family": "", "via": "answer_title", "answer_title": "Reverse power in the paralleling picture — where it sits among the alternator safeties", "cross_family": false } ] }, { "qid": "MUM-2024-01-2216-Q002", "text": "Holding down bolts testing", "family": "2-Stroke - 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Types, functions and arrangement of boiler tubes", "cross_family": true } ] }, { "qid": "MUM-2024-01-2217-Q007", "text": "How to charge lube oil in refrigeration?", "family": "Refrigeration & AC", "subtopic": "Refrigeration Lubricating Oil / Flock Point / Oil Charging", "tid": "MUM-2024-01-2217", "tray": "review", "candidates": [ { "answer_id": "REEF-COMP-004", "score": 0.7356482148170471, "sibling_score": 0.7356482148170471, "answer_score": 0.5873995870351791, "sibling_qid": "MUM-2026-07-3760-Q005", "sibling_text": "detail the step by step procedures for charging oil into a refrigeration compressor", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Charging, replenishing and draining compressor lube oil — including with no charging pump", "cross_family": false }, { "answer_id": "REEF-CHG-001", "score": 0.6818382143974304, "sibling_score": 0.6818382143974304, "answer_score": 0.4890243351459503, "sibling_qid": "KOL-2026-07-4271-Q002", "sibling_text": "oil charging in refrigeration", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "01Charging or replenishing the refrigerant in a refrigeration / AC plant", "cross_family": false }, { "answer_id": "REEF-COMP-001", "score": 0.6677621603012085, "sibling_score": 0.6677621603012085, "answer_score": null, "sibling_qid": "KOL-2026-10-4320-Q007", "sibling_text": "how to charge oil in domestic fridge compressor why vacuum pump needed which gauge required", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Reefer/AC compressor safeties and cut-outs — safety valve, HP and LP cut-outs", "cross_family": false } ] }, { "qid": "MUM-2024-01-2217-Q009", "text": "Checks on rudder in dd", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "MUM-2024-01-2217", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.7749540209770203, "sibling_score": 0.7749540209770203, "answer_score": 0.40210693776607515, "sibling_qid": "MUM-2026-06-3564-Q005", "sibling_text": "checks in dd on rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "DUS-P5-05", "score": 0.3985510885715485, "sibling_score": null, "answer_score": 0.3985510885715485, "sibling_qid": "", "sibling_text": "rudder checks and rudder blade tightness leak test in drydock visual checks coating condition cavitation erosion on the blade leading edge propeller side face sacrificial anodes against the approved cathodic protection plan grounding continuity against the approved acceptance criterion plate and weld cracks pintle clearance measured with feeler the numerical acceptance limit is class specific and ", "sibling_family": "", "via": "answer_title", "answer_title": "Rudder checks and rudder-blade tightness/leak test in drydock", "cross_family": false }, { "answer_id": "STEER-055-A-005", "score": 0.38372382819652556, "sibling_score": null, "answer_score": 0.38372382819652556, "sibling_qid": "", "sibling_text": "checks clearances trials and steering room duties routine 2 e checks reservoir oil levels leaks motor pump heat noise vibration rudder follows helm both ways without hunting rai agrees with the actual rudder alarms healthy confined water critical transit run both power units redundancy test before entry no maintenance standby manning comms with the bridge confirmed", "sibling_family": "", "via": "answer_title", "answer_title": "Checks, clearances, trials and steering-room duties", "cross_family": false } ] }, { "qid": "MUM-2024-01-2217-Q010", "text": "Types of pintle and which is where?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Pintle / Rudder Inspection", "tid": "MUM-2024-01-2217", "tray": "new", "candidates": [ { "answer_id": "TRS-002", "score": 0.507622241973877, "sibling_score": 0.507622241973877, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.5057229995727539, "sibling_score": 0.5057229995727539, "answer_score": null, "sibling_qid": "MUM-2026-05-3227-Q009", "sibling_text": "pintle clearances", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": true }, { "answer_id": "FB-COUP-001", "score": 0.47131121158599854, "sibling_score": 0.47131121158599854, "answer_score": 0.3559377685189247, "sibling_qid": "MUM-2026-07-3769-Q009", "sibling_text": "fitted bolts types", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What fitted bolts are, what they do, and where they sit onboard", "cross_family": true } ] }, { "qid": "MUM-2024-01-2218-Q001", "text": "MEP COC attempt", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2024-01-2218", "tray": "new", "candidates": [ { "answer_id": "CERT-LIST-P01-001", "score": 0.400800883769989, "sibling_score": 0.400800883769989, "answer_score": null, "sibling_qid": "MUM-2026-03-2596-Q007", "sibling_text": "finally coc", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "List the statutory certificates carried onboard a ship.", "cross_family": true }, { "answer_id": "AV6-P01-01", "score": 0.38018137216567993, "sibling_score": 0.38018137216567993, "answer_score": null, "sibling_qid": "KOC-2026-03-0884-Q005", "sibling_text": "mepc 83", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Explain the latest Annex VI amendment or MEPC development, and state its date and status.", "cross_family": true }, { "answer_id": "IMO-CC-P01-003", "score": 0.37263840436935425, "sibling_score": 0.37263840436935425, "answer_score": null, "sibling_qid": "KOC-2025-07-0638-Q005", "sibling_text": "mepc msc", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Name the IMO Committees and Sub-Committees (MSC, MEPC, FAL …) and state their functions.", "cross_family": true } ] }, { "qid": "MUM-2024-01-2218-Q003", "text": "What is procedure of checking main engime foundation bolt. ( hammer and thumb method)", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Holding Down Bolts", "tid": "MUM-2024-01-2218", "tray": "new", "candidates": [ { "answer_id": "TBR-TT-P02-002", "score": 0.5983173847198486, "sibling_score": 0.5983173847198486, "answer_score": null, "sibling_qid": "MUM-2026-02-2548-Q003", "sibling_text": "holding down bolt tighness check", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Checking tie rod tightness / slackness — stopped and running", "cross_family": false }, { "answer_id": "TBR-TT-P02-001", "score": 0.5897068977355957, "sibling_score": 0.5897068977355957, "answer_score": null, "sibling_qid": "CHE-2026-05-0641-Q012", "sibling_text": "holding down bolts checks and tightening", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Tie rod tightening / hydraulic tensioning procedure", "cross_family": false }, { "answer_id": "CRB-002", "score": 0.5748343467712402, "sibling_score": 0.5748343467712402, "answer_score": 0.45461865067481994, "sibling_qid": "MUM-2025-09-2832-Q008", "sibling_text": "checks on con rod bolts", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What checks and tests are carried out on connecting rod bolts? Why NDT, why check elongation, what is the maximum limit, and which section tends to shear off?", "cross_family": true } ] }, { "qid": "MUM-2024-01-2220-Q001", "text": "How do you do bunker line pressure testing", "family": "Boilers - Safety & Survey", "subtopic": "Hydrostatic Test", "tid": "MUM-2024-01-2220", "tray": "review", "candidates": [ { "answer_id": "BLT-339-001", "score": 0.7356390357017517, "sibling_score": 0.7356390357017517, "answer_score": 0.513480532169342, "sibling_qid": "KOL-2024-07-1947-Q009", "sibling_text": "bunker line pressure testing all", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Bunker Line Pressure Test — medium, pressure, holding, draining and records", "cross_family": true }, { "answer_id": "PPT-002", "score": 0.5526914894580841, "sibling_score": null, "answer_score": 0.5526914894580841, "sibling_qid": "", "sibling_text": "bunker line pressure test procedure frequency pressure duration checks and draining hydraulic test liquid not air testing with air is invalid and a recognised port state deficiency pressure basis for marine fuel oil piping iacs ur p2 class expresses the test as 1 5 design pressure use the ship approved value from the bunker plan or line rating 33 cfr 156 170 s 1 5 mawp is a us transfer operation b", "sibling_family": "", "via": "answer_title", "answer_title": "Bunker line pressure test: procedure, frequency, pressure, duration, checks and draining", "cross_family": false }, { "answer_id": "LO-CLR-002", "score": 0.4809448540210724, "sibling_score": null, "answer_score": 0.4809448540210724, "sibling_qid": "", "sibling_text": "how do you pressure test a lube oil cooler safety and isolation first stop with bridge permission cool down isolate both sides drain open water boxes blank one side connect a pump to the other raise pressure slowly and hold", "sibling_family": "", "via": "answer_title", "answer_title": "How do you pressure-test a lube-oil cooler?", "cross_family": false } ] }, { "qid": "MUM-2024-01-2220-Q003", "text": "How do you select Lo oil for a refer compressor", "family": "Refrigeration & AC", "subtopic": "Refrigeration Lubricating Oil / Flock Point / Oil Charging", "tid": "MUM-2024-01-2220", "tray": "review", "candidates": [ { "answer_id": "REEF-COMP-003", "score": 0.7198870778083801, "sibling_score": 0.7198870778083801, "answer_score": 0.4937377035617828, "sibling_qid": "MUM-2026-06-3513-Q007", "sibling_text": "how you select the refer compressor oil", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Refrigeration-compressor lube oil — properties, selection, and its jobs beyond lubrication", "cross_family": false }, { "answer_id": "REEF-COMP-004", "score": 0.6479156613349915, "sibling_score": 0.6479156613349915, "answer_score": 0.47357558012008666, "sibling_qid": "NOI-2026-09-0004-Q006", "sibling_text": "lube oil charging in refer compressor", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Charging, replenishing and draining compressor lube oil — including with no charging pump", "cross_family": false }, { "answer_id": "REEF-COMP-002", "score": 0.6446569561958313, "sibling_score": 0.6446569561958313, "answer_score": null, "sibling_qid": "KOC-2023-10-1290-Q008", "sibling_text": "refer lo oil differential pr switch working and how it s trip compressor", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Lube-oil low-pressure / differential-pressure trip — how it works, tests and sets", "cross_family": false } ] }, { "qid": "MUM-2024-01-2220-Q004", "text": "Only meat room temperature rising what reasons A few more questions I don't remember", "family": "Refrigeration & AC", "subtopic": "Refrigeration Faults / Checks", "tid": "MUM-2024-01-2220", "tray": "review", "candidates": [ { "answer_id": "REFR-FLT-001", "score": 0.8161634802818298, "sibling_score": 0.8161634802818298, "answer_score": null, "sibling_qid": "MUM-2026-03-2663-Q001", "sibling_text": "meat room temperature not rising reasons", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Provision/cold room temperature: will not pull down, runs too low, or will not hold", "cross_family": false }, { "answer_id": "REEF-PREP-001", "score": 0.7040613293647766, "sibling_score": 0.7040613293647766, "answer_score": null, "sibling_qid": "KOL-2026-01-2953-Q005", "sibling_text": "how meat room temperature is controlled", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Provision (domestic) refrigerated rooms — arrangement and temperature control", "cross_family": false }, { "answer_id": "RAC-MAT-320-001", "score": 0.6809415221214294, "sibling_score": 0.6809415221214294, "answer_score": 0.4030172675848007, "sibling_qid": "MUM-2024-01-2216-Q004", "sibling_text": "meat room temp reduction to be done how", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "1. Holding different room temperatures — meat, fish, vegetable, dairy", "cross_family": false } ] }, { "qid": "MUM-2024-02-0158-Q001", "text": "Factor of subdivision", "family": "SOLAS", "subtopic": "Damage Stability", "tid": "MUM-2024-02-0158", "tray": "review", "candidates": [ { "answer_id": "LOLL-P02-001", "score": 0.8378638029098511, "sibling_score": 0.8378638029098511, "answer_score": null, "sibling_qid": "MUM-2025-06-0335-Q004", "sibling_text": "factor of subdivision", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "4. Significance of angle of loll — and why it occurs", "cross_family": false }, { "answer_id": "FLP-142-P02-005", "score": 0.7905055284500122, "sibling_score": 0.7905055284500122, "answer_score": 0.44840826392173766, "sibling_qid": "KOL-2022-11-0701-Q001", "sibling_text": "factor of subdivision range", "sibling_family": "", "via": "sibling", "answer_title": "Factor of subdivision — how it is fixed (length and criterion numeral)", "cross_family": false }, { "answer_id": "FLP-142-P02-004", "score": 0.7883505821228027, "sibling_score": 0.7883505821228027, "answer_score": 0.5008431702852248, "sibling_qid": "KOL-2019-12-0365-Q004", "sibling_text": "factor of subdivision", "sibling_family": "", "via": "sibling", "answer_title": "Factor of subdivision — what it is", "cross_family": false } ] }, { "qid": "MUM-2024-02-0158-Q003", "text": "EEdI and which type of ships not applicable.", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2024-02-0158", "tray": "new", "candidates": [ { "answer_id": "EEDI-A-003", "score": 0.6277287602424622, "sibling_score": 0.6277287602424622, "answer_score": 0.4881094455718994, "sibling_qid": "KOL-2026-03-1198-Q007", "sibling_text": "which ships are exempted from eedi", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Which ships EEDI applies to — scope, exemptions and amendments", "cross_family": true }, { "answer_id": "EEDI-C-001", "score": 0.5954844951629639, "sibling_score": 0.5954844951629639, "answer_score": null, "sibling_qid": "KOL-2022-05-0640-Q003", "sibling_text": "eexi and eedi latest developments what is required by a particular ship regarding the same and cii", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "EEDI versus EEXI — what is the difference?", "cross_family": true }, { "answer_id": "EEDI-A-004", "score": 0.5899792909622192, "sibling_score": 0.5899792909622192, "answer_score": null, "sibling_qid": "KOL-2019-08-0310-Q006", "sibling_text": "eedi latest technology design in ship", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Salient features and design measures affecting EEDI", "cross_family": true } ] }, { "qid": "MUM-2024-02-0158-Q004", "text": "chapter 14 - solas", "family": "SOLAS - General (HOLD)", "subtopic": "Solas Chapters Overview", "tid": "MUM-2024-02-0158", "tray": "review", "candidates": [ { "answer_id": "SOLAS-XII-BC-002", "score": 0.657425582408905, "sibling_score": 0.657425582408905, "answer_score": null, "sibling_qid": "MUM-2025-06-0312-Q001", "sibling_text": "chapter 12 solas", "sibling_family": "SOLAS - General (HOLD)", "via": "sibling", "answer_title": "Explain SOLAS Chapter XII — the additional safety measures for bulk carriers", "cross_family": false }, { "answer_id": "SOLAS-OVW-003", "score": 0.6456910967826843, "sibling_score": 0.6456910967826843, "answer_score": null, "sibling_qid": "KOL-2026-01-1161-Q011", "sibling_text": "solas chapter 14", "sibling_family": "", "via": "sibling", "answer_title": "SOLAS Chapter XIV — ships operating in polar waters (Polar Code)", "cross_family": false }, { "answer_id": "SOLAS-CH-014", "score": 0.6142118573188782, "sibling_score": 0.6142118573188782, "answer_score": 0.4436563909053802, "sibling_qid": "KOC-2022-10-0102-Q009", "sibling_text": "solas how many chapters what is the 14th chapter", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS Chapter XIV - Polar Code", "cross_family": true } ] }, { "qid": "MUM-2024-02-0158-Q005", "text": "chapter 15 - Polar code ..what is code h in Polar code ?", "family": "Other Conventions", "subtopic": "Polar Code", "tid": "MUM-2024-02-0158", "tray": "new", "candidates": [ { "answer_id": "OTH-CONV-006", "score": 0.6270506978034973, "sibling_score": 0.6270506978034973, "answer_score": 0.3366945371031761, "sibling_qid": "KOC-2021-12-0040-Q005", "sibling_text": "contents of polar code", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Polar Code — contents and scope", "cross_family": false }, { "answer_id": "OPRC-SALV-004", "score": 0.4626697599887848, "sibling_score": 0.4626697599887848, "answer_score": null, "sibling_qid": "MUM-2024-12-2780-Q002", "sibling_text": "oprc hns", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "HNS — two different conventions, and the OPRC connection", "cross_family": false }, { "answer_id": "NOISE-CODE-004", "score": 0.4574214518070221, "sibling_score": 0.4574214518070221, "answer_score": null, "sibling_qid": "KOC-2025-10-0678-Q002", "sibling_text": "condition of noise code", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What conditions are required for carrying out a shipboard noise survey?", "cross_family": false } ] }, { "qid": "MUM-2024-02-0158-Q006", "text": "Model ship", "family": "", "subtopic": "", "tid": "MUM-2024-02-0158", "tray": "new", "candidates": [ { "answer_id": "RES-PROP-P02-001", "score": 0.6375737190246582, "sibling_score": 0.6375737190246582, "answer_score": 0.4619969934225082, "sibling_qid": "KOL-2019-08-0322-Q001", "sibling_text": "1 model exp criteria for selection model relation with ship for various calculations", "sibling_family": "", "via": "sibling", "answer_title": "Ship model and towing tests — purpose, scaling and resistance prediction", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.6068853139877319, "sibling_score": 0.6068853139877319, "answer_score": null, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.5980229377746582, "sibling_score": 0.5980229377746582, "answer_score": null, "sibling_qid": "MUM-2026-02-1280-Q001", "sibling_text": "type of ship done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false } ] }, { "qid": "MUM-2024-02-0159-Q003", "text": "Condition of Class", "family": "Surveys - Statutory", "subtopic": "Condition of Class", "tid": "MUM-2024-02-0159", "tray": "review", "candidates": [ { "answer_id": "COC-001", "score": 0.8517777323722839, "sibling_score": 0.8517777323722839, "answer_score": 0.38388575017452237, "sibling_qid": "KOC-2026-04-0899-Q005", "sibling_text": "condition of class", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is a Condition of Class? Give examples, say where it is found, how much time is given to rectify it, and what happens if it is not met in time.", "cross_family": false }, { "answer_id": "COC-002", "score": 0.8064543604850769, "sibling_score": 0.8064543604850769, "answer_score": 0.4057216584682464, "sibling_qid": "KOL-2016-12-0036-Q002", "sibling_text": "condition of class condition assessignment", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the difference between a Condition of Class and a Condition of Assignment?", "cross_family": false }, { "answer_id": "IACS-324-003", "score": 0.7033582329750061, "sibling_score": 0.7033582329750061, "answer_score": null, "sibling_qid": "KOC-2024-03-0321-Q011", "sibling_text": "how class can become ro explain conditions", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "3. What is a Recognized Organization, how is it recognized by a flag State, and how can a classification society become one?", "cross_family": false } ] }, { "qid": "MUM-2024-02-0159-Q004", "text": "Survival craft regulations", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Lifeboat / Davit / LSA", "tid": "MUM-2024-02-0159", "tray": "review", "candidates": [ { "answer_id": "LRHR-A-008", "score": 0.7488579154014587, "sibling_score": 0.7488579154014587, "answer_score": 0.5008054256439208, "sibling_qid": "MUM-2026-04-0911-Q003", "sibling_text": "survival craft reg", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "SOLAS requirements for survival craft — where the requirements live", "cross_family": false }, { "answer_id": "LRHR-A-001", "score": 0.6713463664054871, "sibling_score": 0.6713463664054871, "answer_score": null, "sibling_qid": "KOC-2026-09-2174-Q004", "sibling_text": "life raft solas regulations", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "SOLAS requirement for liferafts on a cargo ship — number and total capacity", "cross_family": false }, { "answer_id": "LSA-LB-A-009", "score": 0.465064999461174, "sibling_score": null, "answer_score": 0.465064999461174, "sibling_qid": "", "sibling_text": "lifeboat vs liferaft vs rescue boat and why each is carried lifeboat rigid powered davit free fall launched full complement survival craft primary abandonment liferaft inflatable or rigid no engine float free hru weak link painter or davit launched back up survival capacity", "sibling_family": "", "via": "answer_title", "answer_title": "Lifeboat vs liferaft vs rescue boat — and why each is carried", "cross_family": false } ] }, { "qid": "MUM-2024-02-0159-Q006", "text": "Dynamic and static stability difference", "family": "SOLAS", "subtopic": "Static / Dynamic Stability", "tid": "MUM-2024-02-0159", "tray": "review", "candidates": [ { "answer_id": "STAB-SD-C-001", "score": 0.7282381653785706, "sibling_score": 0.7282381653785706, "answer_score": 0.5626654982566833, "sibling_qid": "KOL-2024-01-0805-Q006", "sibling_text": "difference between static stability and dynamic stability", "sibling_family": "", "via": "sibling", "answer_title": "Static stability vs dynamic stability — and how each is measured", "cross_family": false }, { "answer_id": "DAM-STAB-P03-001", "score": 0.5146152019500733, "sibling_score": null, "answer_score": 0.5146152019500733, "sibling_qid": "", "sibling_text": "intact static dynamic and damage stability difference and criteria intact stability means the ship is undamaged damage stability means one or more spaces are assumed flooded and the residual condition is assessed static stability is the righting lever gz at a stated heel angle dynamic stability is the area under the gz curve it represents work or energy to heel the ship through an angle", "sibling_family": "", "via": "answer_title", "answer_title": "Intact, static, dynamic and damage stability: difference and criteria", "cross_family": false }, { "answer_id": "STAB-SD-C-002", "score": 0.5133188128471374, "sibling_score": null, "answer_score": 0.5133188128471374, "sibling_qid": "", "sibling_text": "static stability what it is and what it quantifies", "sibling_family": "", "via": "answer_title", "answer_title": "Static stability — what it is and what it quantifies", "cross_family": false } ] }, { "qid": "MUM-2024-02-0159-Q008", "text": "Weathertight and watertight doors", "family": "SOLAS - Watertight & Closing Appliances", "subtopic": "Watertight / Weathertight Doors", "tid": "MUM-2024-02-0159", "tray": "review", "candidates": [ { "answer_id": "WEATH-545-001", "score": 0.7431421279907227, "sibling_score": 0.7431421279907227, "answer_score": 0.4280592918395996, "sibling_qid": "KOL-2021-12-0581-Q003", "sibling_text": "water tight door vs weather tight door", "sibling_family": "SOLAS - Watertight & Closing Appliances", "via": "sibling", "answer_title": "What is weathertight, and how does it differ from watertight — meaning, application, location and testing?", "cross_family": false }, { "answer_id": "WTD-004", "score": 0.6694779396057129, "sibling_score": 0.6694779396057129, "answer_score": 0.467462620139122, "sibling_qid": "KOC-2024-11-0449-Q005", "sibling_text": "weather tight and watertight doors and method of pressure testing", "sibling_family": "SOLAS - Watertight & Closing Appliances", "via": "sibling", "answer_title": "Watertight vs weathertight doors, and pressure/hose testing", "cross_family": false }, { "answer_id": "WTD-001", "score": 0.6675540804862976, "sibling_score": 0.6675540804862976, "answer_score": 0.4602212727069855, "sibling_qid": "MUM-2026-02-0782-Q006", "sibling_text": "types of watertight doors", "sibling_family": "SOLAS - Watertight & Closing Appliances", "via": "sibling", "answer_title": "What watertight doors are, the types fitted, and the SOLAS/Class requirements", "cross_family": false } ] }, { "qid": "MUM-2024-02-0161-Q003", "text": "FONAR", "family": "MARPOL - General & Compliance", "subtopic": "Marpol Sample / In-Use", "tid": "MUM-2024-02-0161", "tray": "review", "candidates": [ { "answer_id": "SOX-LIMIT-004", "score": 0.7067461013793945, "sibling_score": 0.7067461013793945, "answer_score": null, "sibling_qid": "MUM-2026-05-3304-Q002", "sibling_text": "fonar", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Compliant fuel unavailable or off-spec — FONAR", "cross_family": true }, { "answer_id": "EEDI-C-002", "score": 0.5607658624649048, "sibling_score": 0.5607658624649048, "answer_score": null, "sibling_qid": "KOL-2020-03-0407-Q003", "sibling_text": "eedi eeoi fonar", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "EEDI versus EEOI — what is the difference?", "cross_family": true }, { "answer_id": "IGC-GAS-006", "score": 0.4252732992172241, "sibling_score": 0.4252732992172241, "answer_score": null, "sibling_qid": "KOL-2019-08-0306-Q002", "sibling_text": "lng ffa", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Deck fixed dry chemical powder (DCP) fire-extinguishing system", "cross_family": true } ] }, { "qid": "MUM-2024-02-0161-Q005", "text": "dynamic stability and static stability", "family": "SOLAS", "subtopic": "Static / Dynamic Stability", "tid": "MUM-2024-02-0161", "tray": "review", "candidates": [ { "answer_id": "STAB-SD-C-001", "score": 0.79970383644104, "sibling_score": 0.79970383644104, "answer_score": 0.5996111690998077, "sibling_qid": "KOL-2025-09-1061-Q009", "sibling_text": "dynamic stability static stability", "sibling_family": "", "via": "sibling", "answer_title": "Static stability vs dynamic stability — and how each is measured", "cross_family": false }, { "answer_id": "DAM-STAB-P03-001", "score": 0.7679868340492249, "sibling_score": 0.7679868340492249, "answer_score": null, "sibling_qid": "KOL-2019-12-0370-Q002", "sibling_text": "dynamic stability damage stability", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Intact, static, dynamic and damage stability: difference and criteria", "cross_family": false }, { "answer_id": "STAB-SD-C-002", "score": 0.5650157988071441, "sibling_score": null, "answer_score": 0.5650157988071441, "sibling_qid": "", "sibling_text": "static stability what it is and what it quantifies", "sibling_family": "", "via": "answer_title", "answer_title": "Static stability — what it is and what it quantifies", "cross_family": false } ] }, { "qid": "MUM-2024-02-0161-Q006S3", "text": "as 2/e preparation for load line survey", "family": "", "subtopic": "", "tid": "MUM-2024-02-0161", "tray": "review", "candidates": [ { "answer_id": "LLC-SURV-P01-001", "score": 0.7540120482444763, "sibling_score": 0.7540120482444763, "answer_score": 0.44441523551940915, "sibling_qid": "MUM-2025-06-0306-Q005", "sibling_text": "as 2 e prepare for load line survey", "sibling_family": "", "via": "sibling", "answer_title": "Load line survey preparation as Second Engineer: engine-room scope, machinery openings, tanks/vents, valves and overboard checks", "cross_family": false }, { "answer_id": "SVY-SCOPE-008", "score": 0.42554205358028413, "sibling_score": null, "answer_score": 0.42554205358028413, "sibling_qid": "", "sibling_text": "as second engineer what is your role and scope during a load line survey purpose conditions of assignment maintained the integrity that justified the assigned freeboard ll 66 88 annual within 3 months of anniversary endorsed on the 5 year load line certificate renewal 5 yearly", "sibling_family": "", "via": "answer_title", "answer_title": "As Second Engineer, what is your role and scope during a Load Line survey?", "cross_family": false }, { "answer_id": "ELEC-SURV-004", "score": 0.3959846556186676, "sibling_score": null, "answer_score": 0.3959846556186676, "sibling_qid": "", "sibling_text": "preparing carrying out the survey as second engineer three stages plan scope items due permits isolations prepare clean records pre test demonstrate trips emergency gen steering nav lights items alternators governors main emergency switchboards ir motors starters emergency power steering gear parts nav light indicators tanker hazardous area ums alarms", "sibling_family": "", "via": "answer_title", "answer_title": "Preparing & carrying out the survey as Second Engineer", "cross_family": false } ] }, { "qid": "MUM-2024-02-0161-Q006S4", "text": "Nox all tiers? present what tiers are in use", "family": "", "subtopic": "", "tid": "MUM-2024-02-0161", "tray": "new", "candidates": [ { "answer_id": "A6-NSEC-003", "score": 0.6001572012901306, "sibling_score": 0.6001572012901306, "answer_score": null, "sibling_qid": "MUM-2024-07-0179-Q007", "sibling_text": "nox tier1 and nox2 and 3", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "NOx — formation, limits & reduction (SCR / EGR)", "cross_family": false }, { "answer_id": "A6-NSEC-002", "score": 0.4924927055835724, "sibling_score": 0.4924927055835724, "answer_score": 0.2846553415060043, "sibling_qid": "KOL-2018-06-0185-Q002", "sibling_text": "nox tech file and what is tier is annex 6", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "NOx Technical Code vs NOx Technical File", "cross_family": false }, { "answer_id": "AIRP-188-007", "score": 0.44998452067375183, "sibling_score": 0.44998452067375183, "answer_score": 0.2872861936688423, "sibling_qid": "MUM-2025-05-0271-Q010", "sibling_text": "details about all the 3 tiers of nox and asked me after 2016 is it applicable in eca areas or whole world area", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "NOx and SOx control under Annex VI (Reg 13 & 14) — limits and abatement", "cross_family": false } ] }, { "qid": "MUM-2024-02-0161-Q006S5", "text": "3/E states his medical certificate expired how will you guide him you are out at sea", "family": "", "subtopic": "", "tid": "MUM-2024-02-0161", "tray": "new", "candidates": [ { "answer_id": "CERT-LIST-P02-004", "score": 0.6041565537452698, "sibling_score": 0.6041565537452698, "answer_score": null, "sibling_qid": "KOC-2026-04-0909-Q009", "sibling_text": "you are in port and you realise that your statutory certificates are expired who all to inform what actions they will take", "sibling_family": "Maritime Law & Certificates", "via": "sibling", "answer_title": "Validity, renewal, interim certificates and e-certificate verification", "cross_family": false }, { "answer_id": "MLC-WRH-B-008", "score": 0.6034337282180786, "sibling_score": 0.6034337282180786, "answer_score": 0.48664302825927735, "sibling_qid": "KOC-2023-12-0264-Q002", "sibling_text": "mlc medical certificate requirement can u join ship with expired medical certificate how long is validity of such certificate", "sibling_family": "MLC", "via": "sibling", "answer_title": "Medical certificate — requirements, validity, and joining on an expired one", "cross_family": false }, { "answer_id": "CERT-LIST-P01-001", "score": 0.5367988348007202, "sibling_score": 0.5367988348007202, "answer_score": null, "sibling_qid": "MUM-2026-03-0827-Q004", "sibling_text": "certificates carried onboard ships along with conventions supporting it", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "List the statutory certificates carried onboard a ship.", "cross_family": false } ] }, { "qid": "MUM-2024-02-0163-Q004", "text": "Difference between audit and survey", "family": "Surveys - Statutory", "subtopic": "Audit vs Survey", "tid": "MUM-2024-02-0163", "tray": "review", "candidates": [ { "answer_id": "AUDIT-IE-004", "score": 0.7319959998130798, "sibling_score": 0.7319959998130798, "answer_score": 0.5063647300004959, "sibling_qid": "KOC-2026-09-2211-Q001", "sibling_text": "audit and survey difference", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Difference between audit and survey", "cross_family": false }, { "answer_id": "ISM-AUD-P03-001", "score": 0.6350294947624207, "sibling_score": 0.6350294947624207, "answer_score": 0.41351777613162993, "sibling_qid": "KOC-2026-02-0822-Q011", "sibling_text": "difference between audit and survey he wants definition and differences", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Audit vs survey vs inspection; initial vs interim audit", "cross_family": true }, { "answer_id": "SURV-GEN-002", "score": 0.5528395771980286, "sibling_score": 0.5528395771980286, "answer_score": 0.42279667556285855, "sibling_qid": "KOL-2023-11-3655-Q006", "sibling_text": "differences between statutory survey and class survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Statutory survey versus classification survey", "cross_family": false } ] }, { "qid": "MUM-2024-02-0163-Q005", "text": "Intact and damage stability", "family": "SOLAS", "subtopic": "Damage Stability", "tid": "MUM-2024-02-0163", "tray": "review", "candidates": [ { "answer_id": "DS-049-P02-001", "score": 0.8288210034370422, "sibling_score": 0.8288210034370422, "answer_score": 0.4739679217338562, "sibling_qid": "KOC-2024-07-0355-Q003", "sibling_text": "intact stability damage stability", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Difference between intact stability (static / dynamic) and damage stability criteria", "cross_family": false }, { "answer_id": "DAM-STAB-P03-001", "score": 0.8287171721458435, "sibling_score": 0.8287171721458435, "answer_score": 0.4931431621313095, "sibling_qid": "KOC-2025-10-0674-Q007", "sibling_text": "intact and damage stability", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Intact, static, dynamic and damage stability: difference and criteria", "cross_family": false }, { "answer_id": "DS-BASIC-P01-001", "score": 0.5215699434280395, "sibling_score": null, "answer_score": 0.5215699434280395, "sibling_qid": "", "sibling_text": "damage stability definition meaning and oral overview", "sibling_family": "", "via": "answer_title", "answer_title": "Damage stability: definition, meaning and oral overview", "cross_family": false } ] }, { "qid": "MUM-2024-02-0163-Q007", "text": "Ism chapters", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "MUM-2024-02-0163", "tray": "review", "candidates": [ { "answer_id": "ISM-ELEM-003", "score": 0.7638055682182312, "sibling_score": 0.7638055682182312, "answer_score": 0.43757879436016084, "sibling_qid": "KOC-2026-08-2149-Q007", "sibling_text": "ism chapters", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": false }, { "answer_id": "ISM-AUD-P02-002", "score": 0.7132927775382996, "sibling_score": 0.7132927775382996, "answer_score": null, "sibling_qid": "KOL-2019-02-3209-Q005", "sibling_text": "ism chapters specifically how many numbers", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM Code — what it is, purpose, objectives and structure", "cross_family": false }, { "answer_id": "ISM-AUD-P02-006", "score": 0.5306048393249512, "sibling_score": 0.5306048393249512, "answer_score": null, "sibling_qid": "KOL-2025-09-1090-Q003", "sibling_text": "ism code chapter and management review", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Master's review, company / management review and change management", "cross_family": false } ] }, { "qid": "MUM-2024-02-0164-Q003", "text": "Attempt: COC", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2024-02-0164", "tray": "new", "candidates": [ { "answer_id": "CERT-LIST-P01-001", "score": 0.5742293000221252, "sibling_score": 0.5742293000221252, "answer_score": null, "sibling_qid": "MUM-2026-03-2596-Q007", "sibling_text": "finally coc", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "List the statutory certificates carried onboard a ship.", "cross_family": true }, { "answer_id": "COC-001", "score": 0.49437764286994934, "sibling_score": 0.49437764286994934, "answer_score": null, "sibling_qid": "KOL-2025-07-0978-Q001", "sibling_text": "what is coc where it is found", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is a Condition of Class? Give examples, say where it is found, how much time is given to rectify it, and what happens if it is not met in time.", "cross_family": true }, { "answer_id": "FSE-P03-002", "score": 0.449929416179657, "sibling_score": 0.449929416179657, "answer_score": null, "sibling_qid": "KOC-2025-12-0747-Q004", "sibling_text": "what happens to cog", "sibling_family": "", "via": "sibling", "answer_title": "2. Effect on ship stability — GM, GZ and centre of gravity", "cross_family": false } ] }, { "qid": "MUM-2024-02-0164-Q007", "text": "Detainanble deficieny as per PSC", "family": "Surveys - Statutory", "subtopic": "Detention / Clear Ground", "tid": "MUM-2024-02-0164", "tray": "new", "candidates": [ { "answer_id": "DCG-002", "score": 0.627551257610321, "sibling_score": 0.627551257610321, "answer_score": 0.38042175471782685, "sibling_qid": "MUM-2022-10-0061-Q007", "sibling_text": "under psc which conventions can be a reason for detainable deficiency", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What are the reasons for PSC detention and what is a detainable deficiency? Which engine-room deficiencies can detain your ship, which conventions can ground a detainable deficiency, and what is banning by PSC?", "cross_family": false }, { "answer_id": "MLC-WRH-B-007", "score": 0.591628909111023, "sibling_score": 0.591628909111023, "answer_score": null, "sibling_qid": "MUM-2026-02-0732-Q001", "sibling_text": "detainable deficiency as per mic", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": true }, { "answer_id": "DCG-003", "score": 0.5395129323005676, "sibling_score": 0.5395129323005676, "answer_score": 0.3846818581223488, "sibling_qid": "KOL-2025-04-0931-Q009", "sibling_text": "psc deficiency code", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the PSC deficiency code, which code leads to a detainable deficiency, and can you give an example of a \"clear-ground code\"?", "cross_family": false } ] }, { "qid": "MUM-2024-02-0165-Q006", "text": "Lng membrane tank", "family": "Cargo Ops - Gas Carriers", "subtopic": "Independent Tank Type", "tid": "MUM-2024-02-0165", "tray": "review", "candidates": [ { "answer_id": "GC-TANK-005", "score": 0.7037491202354431, "sibling_score": 0.7037491202354431, "answer_score": 0.4763136625289917, "sibling_qid": "KOC-2026-08-2155-Q012", "sibling_text": "lng tank material", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "LNG Moss-type cargo tank: construction and advantages", "cross_family": false }, { "answer_id": "MARVS-TANK-004", "score": 0.6995280385017395, "sibling_score": 0.6995280385017395, "answer_score": 0.4656745374202728, "sibling_qid": "MUM-2024-11-0221-Q003", "sibling_text": "membrane tank composition", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Membrane tanks — NO96 vs Mark III, composition, insulation material and PU-foam generation", "cross_family": false }, { "answer_id": "GC-TANK-001", "score": 0.6988082528114319, "sibling_score": 0.6988082528114319, "answer_score": 0.49345768392086026, "sibling_qid": "MUM-2025-09-1196-Q014", "sibling_text": "type of tanks for lng", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Main cargo containment and independent tank types on LPG and LNG carriers", "cross_family": false } ] }, { "qid": "MUM-2024-02-0165-Q007", "text": "Invar composition", "family": "Materials & Metallurgy", "subtopic": "", "tid": "MUM-2024-02-0165", "tray": "new", "candidates": [ { "answer_id": "COT-P02-02", "score": 0.43119949102401733, "sibling_score": 0.43119949102401733, "answer_score": null, "sibling_qid": "KOL-2017-01-0047-Q003", "sibling_text": "composition of ig", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "State the normal composition and key operating parameters of tanker inert gas, and explain the oxygen limits at the plant outlet and in cargo tanks.", "cross_family": true }, { "answer_id": "DCP-PPC-001", "score": 0.4148191511631012, "sibling_score": 0.4148191511631012, "answer_score": 0.22318411469459534, "sibling_qid": "KOC-2025-01-0511-Q002", "sibling_text": "dcp composition", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "C1 — Composition, Chemical Names & Anti-caking Agents", "cross_family": true }, { "answer_id": "EXHV-080-BF37-001", "score": 0.37012404203414917, "sibling_score": 0.37012404203414917, "answer_score": null, "sibling_qid": "KOL-2024-10-1953-Q001", "sibling_text": "vec components", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "What is variable exhaust valve closing (VEC)? Components and advantages.", "cross_family": true } ] }, { "qid": "MUM-2024-02-0166-Q001", "text": "Type of ship done?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2024-02-0166", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8604289293289185, "sibling_score": 0.8604289293289185, "answer_score": null, "sibling_qid": "MUM-2026-02-1280-Q001", "sibling_text": "type of ship done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "SOLAS12-BC-A-001", "score": 0.7239090800285339, "sibling_score": 0.7239090800285339, "answer_score": null, "sibling_qid": "MUM-2026-04-2958-Q001", "sibling_text": "ship done bulk carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "SOLAS definition and scope of a bulk carrier", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7188595533370972, "sibling_score": 0.7188595533370972, "answer_score": 0.46408500671386715, "sibling_qid": "CHE-2026-05-0614-Q001", "sibling_text": "start from type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "MUM-2024-02-0166-Q005", "text": "Main Bearing Survey what all safety checks you will carryout?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "", "tid": "MUM-2024-02-0166", "tray": "review", "candidates": [ { "answer_id": "MAIN-BRG-A-001", "score": 0.7607907652854919, "sibling_score": 0.7607907652854919, "answer_score": 0.580162090063095, "sibling_qid": "CHE-2026-08-3893-Q001", "sibling_text": "main bearing survey with safety aspects", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How is a main bearing surveyed, inspected or condition-monitored?", "cross_family": false }, { "answer_id": "MN-BRG-C-003", "score": 0.7271987199783325, "sibling_score": 0.7271987199783325, "answer_score": null, "sibling_qid": "KOC-2024-07-1847-Q002", "sibling_text": "checks on main bearing how will you take clearances which all methods", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main bearing clearance and wear-down: measuring and interpreting", "cross_family": false }, { "answer_id": "MAIN-BRG-D-004", "score": 0.7133968472480774, "sibling_score": 0.7133968472480774, "answer_score": null, "sibling_qid": "KOC-2025-05-2063-Q011", "sibling_text": "checks on main bearing", "sibling_family": "2-Stroke - 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Motors & Starters", "via": "sibling", "answer_title": "HV IR test — safety precautions and how HV differs from LV", "cross_family": false } ] }, { "qid": "MUM-2024-02-1424-Q006", "text": "What is residual magnetism", "family": "Electrical - Generator & Alternator", "subtopic": "Residual Magnetism / Flashing", "tid": "MUM-2024-02-1424", "tray": "review", "candidates": [ { "answer_id": "RES-MAG-001", "score": 0.7227498888969421, "sibling_score": 0.7227498888969421, "answer_score": 0.4809859424829483, "sibling_qid": "KOC-2026-02-0830-Q002", "sibling_text": "residual magnetism", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Residual magnetism — what it is, where it is stored, how it is lost and how you restore it", "cross_family": false }, { "answer_id": "AR-263-001", "score": 0.3021431431174278, "sibling_score": null, "answer_score": 0.3021431431174278, "sibling_qid": "", "sibling_text": "what is armature reaction and where is it found armature mmf from load current acting on the main field mmf no load current no reaction with brushes on neutral the dc machine effect is mainly cross magnetizing pole tip saturation still gives a small net flux weakening a true demagnetizing component comes in only when the brushes are shifted off neutral", "sibling_family": "", "via": "answer_title", "answer_title": "What is armature reaction, and where is it found?", "cross_family": false }, { "answer_id": "PROX-SW-002", "score": 0.2987864792346954, "sibling_score": null, "answer_score": 0.2987864792346954, "sibling_qid": "", "sibling_text": "magnetic pickup sensor how it works passive self generating coil on a permanent magnet needs no external excitation supply faces a rotating ferrous toothed wheel flywheel ring gear phonic tone wheel", "sibling_family": "", "via": "answer_title", "answer_title": "Magnetic pickup sensor — how it works", "cross_family": false } ] }, { "qid": "MUM-2024-02-1424-Q007", "text": "Flashing up of alternator", "family": "Electrical - Generator & Alternator", "subtopic": "Residual Magnetism / Flashing", "tid": "MUM-2024-02-1424", "tray": "review", "candidates": [ { "answer_id": "RES-MAG-002", "score": 0.8010859489440918, "sibling_score": 0.8010859489440918, "answer_score": null, "sibling_qid": "MUM-2026-02-2913-Q005", "sibling_text": "flashing up of alternator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Generator started but no voltage developing — reasons, and your action as Second Engineer", "cross_family": false }, { "answer_id": "RES-MAG-004", "score": 0.6916896104812622, "sibling_score": 0.6916896104812622, "answer_score": null, "sibling_qid": "MUM-2026-06-3484-Q009", "sibling_text": "flashing of generator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Field flashing — the procedure, where the battery connects, which terminal, and the precautions", "cross_family": false }, { "answer_id": "ALT-GEN-P03-001", "score": 0.6620105504989624, "sibling_score": 0.6620105504989624, "answer_score": null, "sibling_qid": "KOC-2026-09-2203-Q001", "sibling_text": "alternator working", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Alternator/generator working principle and onboard electricity generation", "cross_family": false } ] }, { "qid": "MUM-2024-02-1429-Q001", "text": "DG is started but voltage is not coming, what r the reason and it corrective action?", "family": "Electrical - Generator & Alternator", "subtopic": "Voltage Not Coming", "tid": "MUM-2024-02-1429", "tray": "review", "candidates": [ { "answer_id": "NO-VOLT-001", "score": 0.8316577672958374, "sibling_score": 0.8316577672958374, "answer_score": 0.5476471841335296, "sibling_qid": "MUM-2025-11-1783-Q004", "sibling_text": "voltage not coming in dg", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "The 3/E reports the generator has started but no voltage is showing — reasons, and your actions as 2/E", "cross_family": false }, { "answer_id": "RES-MAG-002", "score": 0.769027590751648, "sibling_score": 0.769027590751648, "answer_score": 0.5805764704942703, "sibling_qid": "KOL-2025-09-2871-Q001", "sibling_text": "voltage not coming reasons after starting of generator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Generator started but no voltage developing — reasons, and your action as Second Engineer", "cross_family": false }, { "answer_id": "NO-VOLT-003", "score": 0.5851007103919983, "sibling_score": null, "answer_score": 0.5851007103919983, "sibling_qid": "", "sibling_text": "started after a long standby or in drydock and no voltage develops causes and how do you restore it two independent families insulation gone down while idle and excitation that has decayed or been disturbed test both finding one does not clear the other inspect and clean before you test debris salt hygroscopic dust and moisture on the winding outhang are what pull the reading down", "sibling_family": "", "via": "answer_title", "answer_title": "Started after a long standby or in drydock and no voltage develops — causes, and how do you restore it?", "cross_family": false } ] }, { "qid": "MUM-2024-02-2221-Q001", "text": "How do you determine performance of a purifier ?", "family": "Purifier & Centrifuges", "subtopic": "Performance Check", "tid": "MUM-2024-02-2221", "tray": "new", "candidates": [ { "answer_id": "PURIF-172-006", "score": 0.5813692212104797, "sibling_score": 0.5813692212104797, "answer_score": null, "sibling_qid": "KOC-2023-10-1820-Q001", "sibling_text": "type of purifier worked", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Operation, types, throughput & 24V control loss", "cross_family": false }, { "answer_id": "PURIF-BOWL-P02-002", "score": 0.5546709299087524, "sibling_score": 0.5546709299087524, "answer_score": null, "sibling_qid": "CHE-2026-03-0487-Q002", "sibling_text": "how will u find out whthr purifier has developed the required rpm and checks to do prior starting", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Drive, rated RPM, overload, vibration / wobbling & dynamic balancing — causes and troubleshooting", "cross_family": false }, { "answer_id": "PURIF-172-001", "score": 0.5503438711166382, "sibling_score": 0.5503438711166382, "answer_score": null, "sibling_qid": "MUM-2026-05-3277-Q006", "sibling_text": "purifier type and what is the rpm you were operating it", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Purifier not picking up speed — drive, clutch, brake, shear pin", "cross_family": false } ] }, { "qid": "MUM-2024-02-2221-Q002", "text": "#3 Generator lube oil consumption is high and doubt in quality of lube oil, explain your following actions.", "family": "Electrical - Generator & Alternator", "subtopic": "Emergency DG", "tid": "MUM-2024-02-2221", "tray": "new", "candidates": [ { "answer_id": "STHX-003", "score": 0.6495993137359619, "sibling_score": 0.6495993137359619, "answer_score": null, "sibling_qid": "MUM-2026-01-2907-Q009", "sibling_text": "generator lub oil daily 30litre consumption lub oil cooler testing procedure", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "STHX-03 — Pressure and leak testing", "cross_family": true }, { "answer_id": "CYL-LUB-A-002", "score": 0.6368686556816101, "sibling_score": 0.6368686556816101, "answer_score": null, "sibling_qid": "MUM-2026-05-3265-Q010", "sibling_text": "lube oil consumption more what is action", "sibling_family": "Fault Diagnosis & 2/E Actions", "via": "sibling", "answer_title": "Feed-rate control — quantity, timing and load/rpm-dependent dosing", "cross_family": true }, { "answer_id": "LO-TEST-P01-004", "score": 0.6123378276824951, "sibling_score": 0.6123378276824951, "answer_score": null, "sibling_qid": "MUM-2025-08-2357-Q005", "sibling_text": "ge c c oil is not present onboard and you have to change the generator cc oil what you will do how to know correct tbn", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "TBN, BN, TAN, SAN and the SAE grade", "cross_family": true } ] }, { "qid": "MUM-2024-02-2222-Q002", "text": "Bridge informs Smoke from funnel, actions as 2E", "family": "2-Stroke - Operations & Casualty", "subtopic": "Smoke from Funnel", "tid": "MUM-2024-02-2222", "tray": "new", "candidates": [ { "answer_id": "SMK-FUNL-BF01-001", "score": 0.632733166217804, "sibling_score": 0.632733166217804, "answer_score": 0.3962232321500778, "sibling_qid": "MUM-2026-04-2968-Q005", "sibling_text": "smoke from funnel your action as 2e", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "The bridge reports smoke from the funnel — what is your action as 2/E?", "cross_family": false }, { "answer_id": "SMK-FUNL-BF01-004", "score": 0.5987408757209778, "sibling_score": 0.5987408757209778, "answer_score": 0.2591493114829063, "sibling_qid": "MUM-2026-05-3195-Q004", "sibling_text": "bridge informed sparks coming out from funnel your actions", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "There are sparks from the funnel on arrival in port — what is the reason and your action?", "cross_family": false }, { "answer_id": "AE-HOT-BLOW-001", "score": 0.43588361144065857, "sibling_score": 0.43588361144065857, "answer_score": null, "sibling_qid": "KOC-2025-09-1054-Q007", "sibling_text": "black smoke coming in ae action as a 2e", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE / DG giving black or dark smoke — causes and corrective action", "cross_family": true } ] }, { "qid": "MUM-2024-02-2222-Q003", "text": "In rounds you find start air line running hot from particular unit. Actions as 2E", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Starting Air Timing", "tid": "MUM-2024-02-2222", "tray": "new", "candidates": [ { "answer_id": "SAV-003", "score": 0.5933824777603149, "sibling_score": 0.5933824777603149, "answer_score": 0.4523455619812012, "sibling_qid": "MUM-2025-07-2815-Q011", "sibling_text": "starting air line red hot first action no cross question", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Action when a unit starting air valve leaks or the line goes red hot in manoeuvring", "cross_family": true }, { "answer_id": "SAE-388-003", "score": 0.5367494821548462, "sibling_score": 0.5367494821548462, "answer_score": 0.3979356735944748, "sibling_qid": "MUM-2025-09-2831-Q007", "sibling_text": "no3 unit air starting v v leak starting air line red hot action few more with cross ask for wait in the lobby", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "The starting air line is getting hot, or a starting valve is leaking — your action as 2nd Engineer?", "cross_family": true }, { "answer_id": "SCAV-323-P01-001", "score": 0.5214304327964783, "sibling_score": 0.5214304327964783, "answer_score": null, "sibling_qid": "KOC-2023-05-1814-Q007", "sibling_text": "scavenge fire on unit 6 actions as 2 e", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Scavenge fire in the main engine — your actions", "cross_family": true } ] }, { "qid": "MUM-2024-02-2223-Q001", "text": "How you open pintle?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Pintle / Rudder Inspection", "tid": "MUM-2024-02-2223", "tray": "new", "candidates": [ { "answer_id": "WBS-C-001", "score": 0.43799108266830444, "sibling_score": 0.43799108266830444, "answer_score": null, "sibling_qid": "CHE-2026-02-0483-Q007", "sibling_text": "gas torch procedure to open", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding, brazing and soldering — what they are, the shipboard processes, and workshop safety", "cross_family": true }, { "answer_id": "RUD-DROP-001", "score": 0.40002620220184326, "sibling_score": 0.40002620220184326, "answer_score": null, "sibling_qid": "MUM-2026-05-3227-Q009", "sibling_text": "pintle clearances", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": true }, { "answer_id": "BBR-005", "score": 0.3935163617134094, "sibling_score": 0.3935163617134094, "answer_score": null, "sibling_qid": "KOC-2024-11-1016-Q004", "sibling_text": "pinching screws", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "What are pinching (jacking) screws and how are they used in workshop removal/holding work?", "cross_family": true } ] }, { "qid": "MUM-2024-02-2223-Q003", "text": "If your lifeboat winch is had recently load tested, what u will check afterwards?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Lifeboat / Davit / LSA", "tid": "MUM-2024-02-2223", "tray": "review", "candidates": [ { "answer_id": "LBT-TEST-B-003", "score": 0.7996049523353577, "sibling_score": 0.7996049523353577, "answer_score": null, "sibling_qid": "MUM-2022-10-0061-Q008", "sibling_text": "dynamic load test on lifeboat winch brake checks after", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Winch/davit brake test — static vs dynamic, holding capacity, slippage", "cross_family": false }, { "answer_id": "LBT-TEST-B-005", "score": 0.7773458957672119, "sibling_score": 0.7773458957672119, "answer_score": null, "sibling_qid": "KOC-2025-12-0740-Q005", "sibling_text": "checks on lifeboat davit after dynamic test is carried out", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Checks after the dynamic/overload load test", "cross_family": false }, { "answer_id": "LBT-TEST-B-001", "score": 0.7339441180229187, "sibling_score": 0.7339441180229187, "answer_score": null, "sibling_qid": "KOC-2021-07-0020-Q004", "sibling_text": "winch load test for lifeboat static and dynamic", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat/davit load-test proof loads and test conditions", "cross_family": false } ] }, { "qid": "MUM-2024-02-2223-Q006", "text": "How do you centre job in four jaw chock of lathemachine", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Bedplate / Chocks / HDB", "tid": "MUM-2024-02-2223", "tray": "new", "candidates": [ { "answer_id": "LATHE-TD-002", "score": 0.5806673765182495, "sibling_score": 0.5806673765182495, "answer_score": 0.4503223985433578, "sibling_qid": "KOL-2019-07-3264-Q003", "sibling_text": "how centring of cutting tool of lathe is done", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Lathe tools, tool setting, chucks and tailstock precautions", "cross_family": true }, { "answer_id": "CRANK-217-005", "score": 0.5532926917076111, "sibling_score": 0.5532926917076111, "answer_score": 0.4270441889762878, "sibling_qid": "MUM-2025-09-1188-Q002", "sibling_text": "1 crankshaft centring", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankshaft centring / misalignment check", "cross_family": false }, { "answer_id": "PST-CSI-BF-010", "score": 0.4918622672557831, "sibling_score": 0.4918622672557831, "answer_score": 0.39532425105571745, "sibling_qid": "KOL-2025-11-3877-Q007", "sibling_text": "piston centring", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Checking piston alignment / centring in the liner, and correcting eccentricity", "cross_family": true } ] }, { "qid": "MUM-2024-02-2224-Q004", "text": "What to check if feed water consumption is high? What are the action?", "family": "Boilers - Operations & Firing", "subtopic": "Boiler Water Circulation", "tid": "MUM-2024-02-2224", "tray": "new", "candidates": [ { "answer_id": "FWG-RO-003", "score": 0.5447883605957031, "sibling_score": 0.5447883605957031, "answer_score": null, "sibling_qid": "MUM-2022-08-2138-Q006", "sibling_text": "fwg not producing enough water what to do", "sibling_family": "Fresh Water & Domestic Systems", "via": "sibling", "answer_title": "The FWG is not producing enough water or its efficiency has dropped. Reasons, checks and action?", "cross_family": true }, { "answer_id": "BLR-OPS-011", "score": 0.5319486856460571, "sibling_score": 0.5319486856460571, "answer_score": null, "sibling_qid": "MUM-2024-02-2224-Q007", "sibling_text": "what to if the boiler fuel oil constipation is high actions", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "What are the reasons for high boiler fuel-oil consumption, and what action would you take?", "cross_family": false }, { "answer_id": "BLR-OPS-008", "score": 0.5204696655273438, "sibling_score": 0.5204696655273438, "answer_score": null, "sibling_qid": "KOL-2025-05-3783-Q002", "sibling_text": "during rounds what to check in boiler want to hear water level", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "What do you check on the boiler during your engine-room rounds?", "cross_family": false } ] }, { "qid": "MUM-2024-02-2755-Q003", "text": "Jumping clearance it's relationship with steering gear ram", "family": "2-Stroke - Components (Other)", "subtopic": "Running Clearances (Bumping/Jumping)", "tid": "MUM-2024-02-2755", "tray": "new", "candidates": [ { "answer_id": "STEER-055-A-005", "score": 0.6302595138549805, "sibling_score": 0.6302595138549805, "answer_score": null, "sibling_qid": "KOC-2022-05-1785-Q004", "sibling_text": "during normal operation of steering gear where will you check jumping clearance", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Checks, clearances, trials and steering-room duties", "cross_family": true }, { "answer_id": "RVSG-213-005", "score": 0.615947961807251, "sibling_score": 0.615947961807251, "answer_score": 0.4355087161064148, "sibling_qid": "KOC-2021-11-0946-Q004", "sibling_text": "what is the provision for jumping clearance in the rotary vane steering gear draw and explain", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Jumping clearance, thrust accommodation, stock connection & overhaul", "cross_family": true }, { "answer_id": "RUN-CLR-003", "score": 0.5787006378173828, "sibling_score": 0.5760149955749512, "answer_score": 0.5787006378173828, "sibling_qid": "KOC-2025-01-1894-Q010", "sibling_text": "jumping clearance explain where do u check", "sibling_family": "2-Stroke - Components (Other)", "via": "answer_title", "answer_title": "Jumping clearance — how it is measured and where it is checked", "cross_family": false } ] }, { "qid": "MUM-2024-03-0167-Q008", "text": "transom space inspection ?", "family": "", "subtopic": "Peak Tank Construction", "tid": "MUM-2024-03-0167", "tray": "review", "candidates": [ { "answer_id": "DUS-P5-03", "score": 0.6524897813796997, "sibling_score": 0.6524897813796997, "answer_score": null, "sibling_qid": "NOI-2026-09-0006-Q003", "sibling_text": "transom space", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Stern frame construction, cross-section and rudder-axis sketch", "cross_family": false }, { "answer_id": "CYL-LINER-P03-007", "score": 0.6059297919273376, "sibling_score": 0.6059297919273376, "answer_score": null, "sibling_qid": "KOL-2021-11-3479-Q002", "sibling_text": "liner cw space inspection", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Cylinder liner checks at overhaul, decarb and under-piston inspection", "cross_family": false }, { "answer_id": "DDHSC-001", "score": 0.5829523205757141, "sibling_score": 0.5829523205757141, "answer_score": null, "sibling_qid": "KOL-2018-01-1341-Q005", "sibling_text": "drydock preliminary survey underwaterparts inspection what are the things u will check from forward to aft wanted to listen db tanks plug condition", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Ship is in drydock and the dock is pumped dry — what checks do you carry out as Second Engineer?", "cross_family": false } ] }, { "qid": "MUM-2024-03-1079-Q002", "text": "Type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2024-03-1079", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8368158936500549, "sibling_score": 0.8368158936500549, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8019043803215027, "sibling_score": 0.8019043803215027, "answer_score": 0.5472971469163894, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8006531000137329, "sibling_score": 0.8006531000137329, "answer_score": 0.5216498911380768, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2024-03-1079-Q003", "text": "Type of engine", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2024-03-1079", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.8005254864692688, "sibling_score": 0.8005254864692688, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.7928923964500427, "sibling_score": 0.7928923964500427, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-001", "score": 0.4519229233264923, "sibling_score": null, "answer_score": 0.4519229233264923, "sibling_qid": "", "sibling_text": "1 turbocharger type main engine vs generator engine compressor is centrifugal in both cases only the turbine type differs large slow speed main engine axial flow turbine single stage constant pressure system", "sibling_family": "", "via": "answer_title", "answer_title": "1. Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "MUM-2024-03-1079-Q005", "text": "Type of boiler", "family": "Boilers - Operations & Firing", "subtopic": "Boiler Operations", "tid": "MUM-2024-03-1079", "tray": "review", "candidates": [ { "answer_id": "BLRBURN-002", "score": 0.8027319312095642, "sibling_score": 0.8027319312095642, "answer_score": null, "sibling_qid": "MUM-2026-03-2952-Q013", "sibling_text": "what type of boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Draw and explain the steam-assisted pressure jet burner — its advantages, disadvantages and nozzle material.", "cross_family": false }, { "answer_id": "BLR-CAP-BOILER-CAPACITY-RATING-005", "score": 0.791324257850647, "sibling_score": 0.791324257850647, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q009", "sibling_text": "type of boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "What are boiler pressure ratings or maximum working pressure?", "cross_family": true }, { "answer_id": "BLR-TUBE-P01-002", "score": 0.7627182006835938, "sibling_score": 0.7627182006835938, "answer_score": 0.5584955513477325, "sibling_qid": "CHE-2026-05-0555-Q009", "sibling_text": "what type boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "03. Types, functions and arrangement of boiler tubes", "cross_family": true } ] }, { "qid": "MUM-2024-03-1079-Q007", "text": "Hot gas defrosting process", "family": "Refrigeration & AC", "subtopic": "Refrigeration Faults / Checks", "tid": "MUM-2024-03-1079", "tray": "review", "candidates": [ { "answer_id": "REFR-FLT-002", "score": 0.773309051990509, "sibling_score": 0.773309051990509, "answer_score": 0.5451493501663208, "sibling_qid": "KOL-2018-10-1422-Q002", "sibling_text": "hot gas defrosting", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Evaporator defrosting: methods, control, and defrost faults", "cross_family": false }, { "answer_id": "REEF-PREP-004", "score": 0.4555520832538605, "sibling_score": null, "answer_score": 0.4555520832538605, "sibling_qid": "", "sibling_text": "refrigerated room pan heating arrangement the pan is the drip tray drain pan under the evaporator that catches defrost meltwater the pan heater is an electric element in that tray energised during and just after defrost keeping meltwater liquid so it drains instead of re freezing", "sibling_family": "", "via": "answer_title", "answer_title": "Refrigerated-room pan-heating arrangement", "cross_family": false }, { "answer_id": "AIR-REF-005", "score": 0.4413628339767456, "sibling_score": null, "answer_score": 0.4413628339767456, "sibling_qid": "", "sibling_text": "5 removing air using a recovery purge unit same indications prompt the check high head pressure not matching saturation temperature hot discharge poor cooling automatic purge unit takes gas from condenser top sub cools in a purge chamber condenses refrigerant back vents only residual air", "sibling_family": "", "via": "answer_title", "answer_title": "5. Removing air using a recovery / purge unit", "cross_family": false } ] }, { "qid": "MUM-2024-03-1079-Q011", "text": "ME engine what all controlled electronically", "family": "2-Stroke - Reversing & Maneuvering", "subtopic": "EICU / Manoeuvring System", "tid": "MUM-2024-03-1079", "tray": "review", "candidates": [ { "answer_id": "GOV-P02-001", "score": 0.6763731837272644, "sibling_score": 0.6763731837272644, "answer_score": null, "sibling_qid": "KOC-2023-09-1283-Q008", "sibling_text": "me electronic governor working", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Electronic governor — draw, block diagram & working", "cross_family": true }, { "answer_id": "PID-CTRL-005", "score": 0.6577625870704651, "sibling_score": 0.6577625870704651, "answer_score": null, "sibling_qid": "MUM-2026-03-1306-Q017", "sibling_text": "what is electronically controlled", "sibling_family": "2-Stroke - ME-C / Electronic Engine", "via": "sibling", "answer_title": "Open-loop, closed-loop, cascade and other control types onboard", "cross_family": true }, { "answer_id": "EGTP-P02-005", "score": 0.6558554768562317, "sibling_score": 0.6558554768562317, "answer_score": null, "sibling_qid": "CHE-2026-05-0541-Q001", "sibling_text": "type of engine spec explain what is me c how and what is electronically controlled explain", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "MC / MC-C / ME-C and Electronically Controlled Engines", "cross_family": true } ] }, { "qid": "MUM-2024-03-1431-Q001", "text": "How to order motor", "family": "Electrical - Motors & Starters", "subtopic": "Motor Specification / Ordering", "tid": "MUM-2024-03-1431", "tray": "review", "candidates": [ { "answer_id": "BRG-NOM-001", "score": 0.8256855607032776, "sibling_score": 0.8256855607032776, "answer_score": null, "sibling_qid": "NOI-2026-09-0015-Q005", "sibling_text": "how to order motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Bearing Numbers, Suffixes and What to State When Ordering", "cross_family": false }, { "answer_id": "IP-ENCL-002", "score": 0.6723238825798035, "sibling_score": 0.6723238825798035, "answer_score": null, "sibling_qid": "KOC-2026-10-2222-Q002", "sibling_text": "how to order sea water motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Suitable IP rating by location — ER, deck, pump, generator", "cross_family": false }, { "answer_id": "SGM-ELEC-002", "score": 0.6456419825553894, "sibling_score": 0.6456419825553894, "answer_score": 0.49169315993785856, "sibling_qid": "MUM-2025-08-1605-Q001", "sibling_text": "steering motor type and difference from other er motors how to order motor over speed test over current test", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What type of motor is the steering gear motor, how does it differ from other engine-room motors, and how do you order one?", "cross_family": false } ] }, { "qid": "MUM-2024-03-1431-Q003", "text": "What is phanse sequence", "family": "Electrical - Distribution & MSB", "subtopic": "Phase Sequence / Three-Phase Fault", "tid": "MUM-2024-03-1431", "tray": "new", "candidates": [ { "answer_id": "PH-SEQ-001", "score": 0.5261917114257812, "sibling_score": 0.5261917114257812, "answer_score": 0.32935781478881837, "sibling_qid": "MUM-2024-02-1424-Q003", "sibling_text": "what is phase sequence", "sibling_family": "", "via": "sibling", "answer_title": "What is phase sequence, and how is it related to phase angle?", "cross_family": false }, { "answer_id": "SYNC-B-003", "score": 0.5255783796310425, "sibling_score": 0.5255783796310425, "answer_score": 0.32537187933921813, "sibling_qid": "KOC-2025-02-1483-Q003", "sibling_text": "what is phase sequence", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Phase sequence — what it is and how it is matched", "cross_family": true }, { "answer_id": "PH-SEQ-002", "score": 0.4519355595111847, "sibling_score": 0.4519355595111847, "answer_score": null, "sibling_qid": "KOC-2022-11-1211-Q006", "sibling_text": "how to check phase seq", "sibling_family": "", "via": "sibling", "answer_title": "How do you check or verify correct phase sequence, including at shore supply?", "cross_family": false } ] }, { "qid": "MUM-2024-03-1431-Q007", "text": "Application", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "MUM-2024-03-1431", "tray": "new", "candidates": [ { "answer_id": "EXD-EXI-A-002", "score": 0.5956023931503296, "sibling_score": 0.5956023931503296, "answer_score": 0.3664005324244499, "sibling_qid": "KOC-2022-09-2033-Q004", "sibling_text": "exd explain application on board", "sibling_family": "", "via": "sibling", "answer_title": "Ex d (flameproof / explosion-proof) — construction, shipboard applications and maintenance", "cross_family": false }, { "answer_id": "FLD-601-001", "score": 0.585601270198822, "sibling_score": 0.585601270198822, "answer_score": null, "sibling_qid": "KOL-2019-03-0265-Q003", "sibling_text": "lel diagram and application onboard", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Draw and explain the hydrocarbon flammability diagram. What is its purpose and functional requirement, why is the line tapered, and how do you mark a point on it?", "cross_family": true }, { "answer_id": "STR-DEC-A-001", "score": 0.5708546042442322, "sibling_score": 0.5708546042442322, "answer_score": null, "sibling_qid": "KOL-2026-01-2953-Q008", "sibling_text": "types of starters applications", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": true } ] }, { "qid": "MUM-2024-03-2760-Q001", "text": "Main Engine LO low pressure alarm. Actions as 2E. Wanted to listen checking filter. Also asked how will you know filter is chocked.", "family": "2-Stroke - Operations & Casualty", "subtopic": "ME LP Alarm Action", "tid": "MUM-2024-03-2760", "tray": "review", "candidates": [ { "answer_id": "LO-PR-ALM-001", "score": 0.6694085597991943, "sibling_score": 0.6694085597991943, "answer_score": 0.5238274276256562, "sibling_qid": "MUM-2023-11-2211-Q001", "sibling_text": "actions as 2e when lo lp alarm main engine", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main engine low lubricating-oil pressure — alarm, slowdown or trip: your actions as 2/E, and is the alarm true or false?", "cross_family": true }, { "answer_id": "TPL-SENS-A-002", "score": 0.6097673177719116, "sibling_score": 0.6097673177719116, "answer_score": null, "sibling_qid": "CHE-2026-03-0357-Q003", "sibling_text": "lube oil low pressure alarm testing", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Pressure transmitter / transducer / switch working and calibration", "cross_family": true }, { "answer_id": "LOF-359-004", "score": 0.6085450649261475, "sibling_score": 0.6085450649261475, "answer_score": null, "sibling_qid": "CHE-2025-11-0451-Q001", "sibling_text": "hot filter how u will change over expecting check the vent and drain before the change over 2 magnetic particle testing procedure and what type of defects it identify surface cracks and only for ferrous materials 3 while taking rounds u notice air conditioning compressor discharge compressor pressure high what are the reasons expecting to check the cooling water temp first 4 soot fire in funnel how you know it s coming from economizer or from funnel expecting to check the inlet and outlet temp of economizer first to determine whether it is economizer fire or not 5 ows why priming is needed 6 how you determine the air compressor performance 7 centrifugal pump shaft parts 8 what is the purpose of sleeve po deciding gas carrier safeties in engine", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Duplex / Hot Filter Changeover and Zero Differential Pressure", "cross_family": true } ] }, { "qid": "MUM-2024-03-2760-Q003", "text": "While blowing through AE water coming from all units. Actions? Told him about starting air line water but don't know what he was expecting.", "family": "2-Stroke - Operations & Casualty", "subtopic": "Slow Turning vs Blow Through", "tid": "MUM-2024-03-2760", "tray": "new", "candidates": [ { "answer_id": "SAV-003", "score": 0.6496233344078064, "sibling_score": 0.6496233344078064, "answer_score": 0.46372113823890687, "sibling_qid": "MUM-2026-02-2546-Q004", "sibling_text": "ae starting time water is coming from indicator cockw while blow through what action as 2e", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Action when a unit starting air valve leaks or the line goes red hot in manoeuvring", "cross_family": false }, { "answer_id": "SAE-388-003", "score": 0.6074925065040588, "sibling_score": 0.6074925065040588, "answer_score": null, "sibling_qid": "MUM-2025-11-2876-Q002", "sibling_text": "st air line getting hot your first action as 2e he wanted close valve me air valve and drain line thats it", "sibling_family": "2-Stroke - 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Generator & Alternator", "subtopic": "Alternator / Generator", "tid": "MUM-2024-06-1432", "tray": "review", "candidates": [ { "answer_id": "ALT-GEN-P02-001", "score": 0.687717616558075, "sibling_score": 0.687717616558075, "answer_score": 0.5314631938934326, "sibling_qid": "KOC-2026-05-0030-Q007", "sibling_text": "alternator specifications", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Alternator/generator specifications, ratings and ship electrical supply details", "cross_family": false }, { "answer_id": "ALT-GEN-P01-002", "score": 0.5516820609569549, "sibling_score": null, "answer_score": 0.5516820609569549, "sibling_qid": "", "sibling_text": "2 types of generator alternator carried onboard answer from the actual ship alternator maker kva kw voltage frequency power factor speed excitation system and cooling as shown on the nameplate and drawings common main generator diesel engine driven three phase ac synchronous alternator feeding the main switchboard", "sibling_family": "", "via": "answer_title", "answer_title": "2. Types of generator/alternator carried onboard", "cross_family": false }, { "answer_id": "OC-UV-TRIP-006", "score": 0.49013174772262574, "sibling_score": null, "answer_score": 0.49013174772262574, "sibling_qid": "", "sibling_text": "trip settings and combined overcurrent undervoltage protection alternator context alternator protection is a suite overcurrent short circuit ansi 50 51 reverse power 32 under voltage 27 over under frequency 81 earth fault 50n 51n and differential 87 on larger machines reverse power trips to prevent the alternator motoring when its prime mover loses drive protects the engine and the bus", "sibling_family": "", "via": "answer_title", "answer_title": "Trip settings and combined overcurrent / undervoltage protection — alternator context", "cross_family": false } ] }, { "qid": "MUM-2024-06-1433-Q002", "text": "How is it done?", "family": "Workshop & Welding", "subtopic": "Welding / NDT / Heat Treatment", "tid": "MUM-2024-06-1433", "tray": "new", "candidates": [ { "answer_id": "NDT-METH-P03-003", "score": 0.4371874928474426, "sibling_score": 0.4371874928474426, "answer_score": null, "sibling_qid": "MUM-2025-11-0560-Q005", "sibling_text": "how to carry out", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Two or more NDT processes with shipboard applications", "cross_family": true }, { "answer_id": "IR-TEST-B-002", "score": 0.4352036118507385, "sibling_score": 0.4352036118507385, "answer_score": null, "sibling_qid": "KOC-2025-11-1624-Q017", "sibling_text": "how to do", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "IR test of a low-voltage motor — the standard megger procedure", "cross_family": true }, { "answer_id": "ISM-2E-A-004", "score": 0.40411192178726196, "sibling_score": 0.40411192178726196, "answer_score": null, "sibling_qid": "KOC-2025-03-0931-Q017", "sibling_text": "works done as 3e", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Shipboard jobs, machineries and maintenance areas under the Second Engineer", "cross_family": true } ] }, { "qid": "MUM-2024-06-1434-Q003", "text": "Busbar maintenance", "family": "ISM Code", "subtopic": "ISM - Non-conformity / Maintenance", "tid": "MUM-2024-06-1434", "tray": "new", "candidates": [ { "answer_id": "HV-SYS-P05-002", "score": 0.6487416625022888, "sibling_score": 0.6487416625022888, "answer_score": 0.43933186829090115, "sibling_qid": "KOL-2018-10-2228-Q002", "sibling_text": "high voltage bus bar maintenance how it look like safety and all", "sibling_family": "", "via": "sibling", "answer_title": "Working on the HV system: precautions, isolation and earthing before maintenance", "cross_family": false }, { "answer_id": "MSB-ESB-A-001", "score": 0.6426813006401062, "sibling_score": 0.6426813006401062, "answer_score": 0.4829482078552246, "sibling_qid": "MUM-2025-07-1549-Q002", "sibling_text": "bus bar working", "sibling_family": "", "via": "sibling", "answer_title": "Busbars: construction, arrangement, connection, checks and rating", "cross_family": false }, { "answer_id": "CB033-C-001", "score": 0.6137214303016663, "sibling_score": 0.6137214303016663, "answer_score": null, "sibling_qid": "KOL-2025-09-2859-Q005", "sibling_text": "breaker maintenance", "sibling_family": "", "via": "sibling", "answer_title": "How do you carry out maintenance and testing on an ACB / main circuit breaker?", "cross_family": false } ] }, { "qid": "MUM-2024-06-1434-Q007", "text": "Preferential trip", "family": "Electrical - Protection & Relays", "subtopic": "Preferential Trip", "tid": "MUM-2024-06-1434", "tray": "review", "candidates": [ { "answer_id": "PTRIP-222-001", "score": 0.809556782245636, "sibling_score": 0.809556782245636, "answer_score": 0.3384796053171158, "sibling_qid": "KOC-2026-08-2108-Q006", "sibling_text": "preferential trip", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Preferential trip — purpose, working principle and activation", "cross_family": false }, { "answer_id": "MSB-ESB-B-003", "score": 0.2860259026288986, "sibling_score": null, "answer_score": 0.2860259026288986, "sibling_qid": "", "sibling_text": "msb esb work in drydock the trips you test", "sibling_family": "", "via": "answer_title", "answer_title": "MSB/ESB work in drydock & the trips you test", "cross_family": false }, { "answer_id": "PTRIP-BO-002", "score": 0.26318244040012356, "sibling_score": null, "answer_score": 0.26318244040012356, "sibling_qid": "", "sibling_text": "preferential trip load shedding how does it work and how is it tested job shed non essential load on generator overload so essential services stay powered and the main breaker never opens it prevents blackout statutory basis solas ii 1 reg 41 5 load shedding to protect generators against sustained overload the shedding is automatic only non essential loads are shed air conditioning ventilation ref", "sibling_family": "", "via": "answer_title", "answer_title": "Preferential trip / load shedding — how does it work, and how is it tested?", "cross_family": false } ] }, { "qid": "MUM-2024-06-1434-Q011", "text": "Difference between star and delta.", "family": "Electrical - Motors & Starters", "subtopic": "Star-Delta Starter", "tid": "MUM-2024-06-1434", "tray": "review", "candidates": [ { "answer_id": "SDST-B-001", "score": 0.7453510165214539, "sibling_score": 0.7453510165214539, "answer_score": null, "sibling_qid": "MUM-2026-06-3611-Q007", "sibling_text": "star delta is not changing to delta reason", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Explain the star-delta control circuit - timer, interlocks, changeover and how the switching point is chosen.", "cross_family": false }, { "answer_id": "STR-DEC-A-001", "score": 0.6949037313461304, "sibling_score": 0.6949037313461304, "answer_score": null, "sibling_qid": "KOC-2022-12-0120-Q015", "sibling_text": "dol star delta difference", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "SDST-A-001", "score": 0.6818261742591858, "sibling_score": 0.6818261742591858, "answer_score": 0.3368724435567856, "sibling_qid": "MUM-2026-06-3568-Q002", "sibling_text": "star delta change not changing over", "sibling_family": "Electrical - 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Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "MUM-2024-07-0179-Q001", "text": "Type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2024-07-0179", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8363437056541443, "sibling_score": 0.8363437056541443, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.801550567150116, "sibling_score": 0.801550567150116, "answer_score": 0.5469070851802825, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8001151084899902, "sibling_score": 0.8001151084899902, "answer_score": 0.5216073334217072, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2024-07-0179-Q002", "text": "LNG carrier Construction", "family": "Cargo Ops - Gas Carriers", "subtopic": "Cargo Tank Construction", "tid": "MUM-2024-07-0179", "tray": "review", "candidates": [ { "answer_id": "GC-TANK-004", "score": 0.7128347754478455, "sibling_score": 0.7128347754478455, "answer_score": 0.4960218369960785, "sibling_qid": "MUM-2026-09-3868-Q001", "sibling_text": "construction of gas carrier", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Gas-carrier cargo tank construction: materials, insulation, fixing and tank safeties", "cross_family": false }, { "answer_id": "FLR-WFB-P01-006", "score": 0.6958755850791931, "sibling_score": 0.6958755850791931, "answer_score": null, "sibling_qid": "MUM-2026-09-3870-Q007", "sibling_text": "lng ship construction and strengthening members", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Web frames — what they are, where situated, how they give transverse strength", "cross_family": false }, { "answer_id": "LPG-LNG-009", "score": 0.6316243410110474, "sibling_score": 0.6316243410110474, "answer_score": null, "sibling_qid": "MUM-2026-09-3984-Q002", "sibling_text": "construction of an lpg ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Gas-carrier fundamentals and ship-specific traps", "cross_family": true } ] }, { "qid": "MUM-2024-07-0179-Q005", "text": "Stiff and tender vessel", "family": "SOLAS", "subtopic": "Angle of Loll / Stiff & Tender", "tid": "MUM-2024-07-0179", "tray": "review", "candidates": [ { "answer_id": "STF-TND-P03-001", "score": 0.6912051439285278, "sibling_score": 0.6912051439285278, "answer_score": 0.41364349871873857, "sibling_qid": "KOL-2025-04-0929-Q002", "sibling_text": "stiff and tender ship", "sibling_family": "", "via": "sibling", "answer_title": "Stiff and tender ships — what they are and how GM drives behaviour", "cross_family": false }, { "answer_id": "STT-BRG-002", "score": 0.49740880727767944, "sibling_score": 0.49740880727767944, "answer_score": 0.36778041571378706, "sibling_qid": "MUM-2025-08-1152-Q004", "sibling_text": "tyles of stern tube what is lignum vite", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "1. Stern tube — arrangement, function, materials and types", "cross_family": true }, { "answer_id": "FWFB-P02-004", "score": 0.4875406324863434, "sibling_score": 0.4875406324863434, "answer_score": null, "sibling_qid": "KOL-2023-06-0749-Q003", "sibling_text": "ships term brest hook girder framing girder stiffener", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Centre, side, intercostal and longitudinal girders", "cross_family": false } ] }, { "qid": "MUM-2024-07-0179-Q006", "text": "Lifeboat maintenance", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Lifeboat / Davit / LSA", "tid": "MUM-2024-07-0179", "tray": "review", "candidates": [ { "answer_id": "LB-SURV-C-003", "score": 0.8289510607719421, "sibling_score": 0.8289510607719421, "answer_score": null, "sibling_qid": "MUM-2022-07-0016-Q008", "sibling_text": "life boat all maintainance", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Routine maintenance ladder — weekly / monthly / quarterly / 6-monthly onboard checks", "cross_family": false }, { "answer_id": "LB-SURV-C-007", "score": 0.8166811466217041, "sibling_score": 0.8166811466217041, "answer_score": null, "sibling_qid": "KOL-2021-09-0553-Q004", "sibling_text": "life boat lowering maintenance", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Launching appliance — davit, winch brake and on-load release gear maintenance and tests", "cross_family": false }, { "answer_id": "DRG-B-006", "score": 0.8083693385124207, "sibling_score": 0.8083693385124207, "answer_score": null, "sibling_qid": "KOL-2021-12-0583-Q005", "sibling_text": "lifeboat yearly maintenance as 2e lowering and davit and fall maintenance", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Falls — maintenance, end-for-ending and renewal", "cross_family": false } ] }, { "qid": "MUM-2024-07-0181-Q002", "text": "Type of ship sailed, status of written results?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2024-07-0181", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.6920561194419861, "sibling_score": 0.6920561194419861, "answer_score": null, "sibling_qid": "KOC-2026-08-2106-Q001", "sibling_text": "status of written oral company type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.6406977772712708, "sibling_score": 0.6406977772712708, "answer_score": null, "sibling_qid": "CHE-2026-02-0478-Q004", "sibling_text": "this type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.6248809695243835, "sibling_score": 0.6248809695243835, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false } ] }, { "qid": "MUM-2024-07-0182-Q001", "text": "Type of Ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2024-07-0182", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8363437056541443, "sibling_score": 0.8363437056541443, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8015506267547607, "sibling_score": 0.8015506267547607, "answer_score": 0.5469070851802825, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8001151084899902, "sibling_score": 0.8001151084899902, "answer_score": 0.5216073334217072, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2024-07-0182-Q002", "text": "Company, experience on rank", "family": "Status & Introduction", "subtopic": "Company Introduction", "tid": "MUM-2024-07-0182", "tray": "new", "candidates": [ { "answer_id": "ISM-AUD-P02-006", "score": 0.38845181465148926, "sibling_score": 0.38845181465148926, "answer_score": null, "sibling_qid": "KOL-2021-08-0536-Q006", "sibling_text": "master review vs company review", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Master's review, company / management review and change management", "cross_family": true }, { "answer_id": "PIST-CSI-B-001", "score": 0.3769139051437378, "sibling_score": 0.3769139051437378, "answer_score": null, "sibling_qid": "CHE-2026-08-3897-Q011", "sibling_text": "any important troubleshooting in your career internal ques", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main-engine piston — construction and the checks expected", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.3732115626335144, "sibling_score": 0.3732115626335144, "answer_score": null, "sibling_qid": "MUM-2026-05-3280-Q001", "sibling_text": "what company and what vessels you have sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2024-07-0182-Q003", "text": "Functional requirement of ISM", "family": "ISM Code", "subtopic": "SMS / Functional Requirements", "tid": "MUM-2024-07-0182", "tray": "review", "candidates": [ { "answer_id": "ISM-AUD-P02-003", "score": 0.7808604836463928, "sibling_score": 0.7808604836463928, "answer_score": 0.4381662428379059, "sibling_qid": "MUM-2026-09-3991-Q005", "sibling_text": "functional requirements of ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "The six functional requirements of the ISM Code (clause 1.4)", "cross_family": false }, { "answer_id": "SMSFR-001", "score": 0.7287356853485107, "sibling_score": 0.7287356853485107, "answer_score": 0.46933404505252835, "sibling_qid": "MUM-2026-06-3581-Q001", "sibling_text": "what are the functional requirements of the ism code", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What are the functional requirements of the ISM Code and the SMS — and the requirement for internal audit?", "cross_family": false }, { "answer_id": "ISM-ELEM-003", "score": 0.4996267795562744, "sibling_score": null, "answer_score": 0.4996267795562744, "sibling_qid": "", "sibling_text": "elements chapters structure of the ism code part a implementation the 12 elements 1 general 1 1 definitions 1 2 objectives 1 3 application 1 4 functional requirements for an sms", "sibling_family": "", "via": "answer_title", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": false } ] }, { "qid": "MUM-2024-07-0182-Q007", "text": "Type of lifeboat,", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Lifeboat / Davit / LSA", "tid": "MUM-2024-07-0182", "tray": "review", "candidates": [ { "answer_id": "LSA-LB-A-002", "score": 0.8410853743553162, "sibling_score": 0.8410853743553162, "answer_score": 0.6084491401910782, "sibling_qid": "MUM-2026-09-3894-Q008", "sibling_text": "type of lifeboat", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Types of lifeboat — and which type on your ship", "cross_family": false }, { "answer_id": "LB-DAVIT-HRU-011", "score": 0.8016897439956665, "sibling_score": 0.8016897439956665, "answer_score": 0.6014290422201156, "sibling_qid": "CHE-2026-05-0547-Q005", "sibling_text": "types of lifeboat", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Types of lifeboat", "cross_family": false }, { "answer_id": "LSA-LB-A-009", "score": 0.7742595076560974, "sibling_score": 0.7742595076560974, "answer_score": 0.5538047790527344, "sibling_qid": "KOL-2022-07-0652-Q002", "sibling_text": "lifeboat liferat rescue boat", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat vs liferaft vs rescue boat — and why each is carried", "cross_family": false } ] }, { "qid": "MUM-2024-07-0182-Q008", "text": "Loweing speed", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Lifeboat Static / Dynamic Test", "tid": "MUM-2024-07-0182", "tray": "new", "candidates": [ { "answer_id": "DRG-B-008", "score": 0.6142532825469971, "sibling_score": 0.6142532825469971, "answer_score": null, "sibling_qid": 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"MUM-2024-07-0183-Q001", "text": "Introduce yourself and type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2024-07-0183", "tray": "review", "candidates": [ { "answer_id": "LLST-AB-001", "score": 0.6779157519340515, "sibling_score": 0.6779157519340515, "answer_score": 0.4033360451459885, "sibling_qid": "CHE-2026-02-0109-Q001", "sibling_text": "type of ship explain what type is your vessel explain their type and difference", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.6501033306121826, "sibling_score": 0.6501033306121826, "answer_score": null, "sibling_qid": "MUM-2026-05-3002-Q001", "sibling_text": "type of ship and all", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.6242148876190186, "sibling_score": 0.6242148876190186, "answer_score": null, "sibling_qid": "MUM-2026-05-3248-Q001", "sibling_text": "introduction sea time company pre sea ship type engine type me", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "MUM-2024-07-0183-Q006", "text": "Rescue boat regulations", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Lifeboat / Davit / LSA", "tid": "MUM-2024-07-0183", "tray": "review", "candidates": [ { "answer_id": "RB-FRB-002", "score": 0.778187096118927, "sibling_score": 0.778187096118927, "answer_score": 0.5239772409200668, "sibling_qid": "MUM-2024-08-1457-Q017", "sibling_text": "life boat as a rescue boat regulation", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat vs rescue boat — and when a lifeboat is accepted as a rescue boat", "cross_family": false }, { "answer_id": "RB-FRB-003", "score": 0.7448424696922302, "sibling_score": 0.7448424696922302, "answer_score": 0.5614308178424835, "sibling_qid": "CHE-2026-05-0606-Q004", "sibling_text": "rescue boat regulation and cross questions", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "SOLAS/LSA Code requirements and special arrangements for a rescue boat", "cross_family": false }, { "answer_id": "LSA-LB-A-001", "score": 0.7335876822471619, "sibling_score": 0.7335876822471619, "answer_score": null, "sibling_qid": "KOC-2025-03-0576-Q002", "sibling_text": "lifeboat regulations", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "SOLAS requirements for lifeboats", "cross_family": false } ] }, { "qid": "MUM-2024-07-0185-Q001", "text": "type of ship?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2024-07-0185", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 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difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2024-07-0185-Q002", "text": "water ingress alarm in Solas chapt 12", "family": "SOLAS - General (HOLD)", "subtopic": "Solas Chapter 12 - Bulk", "tid": "MUM-2024-07-0185", "tray": "review", "candidates": [ { "answer_id": "SOLAS12-BC-E-001", "score": 0.7038038969039917, "sibling_score": 0.7038038969039917, "answer_score": 0.5377769351005554, "sibling_qid": "KOL-2022-04-0622-Q005", "sibling_text": "solas chapter 12 water ingress all regulations where alarm", "sibling_family": "", "via": "sibling", "answer_title": "Water ingress detection & alarm system (WIDAS) — SOLAS XII/12", "cross_family": false }, { "answer_id": "SOLAS12-BC-E-002", "score": 0.5580604076385498, "sibling_score": 0.5580604076385498, "answer_score": 0.5439794182777404, "sibling_qid": "KOL-2019-09-0324-Q003", "sibling_text": "additional safety of bulk carriers water ingress alarm details what will be your actions when you encounter water ingress alarm in a hold during your watch at night 4 unclos", "sibling_family": "", "via": "sibling", "answer_title": "Flooding / water-ingress watch actions, detection arrangement & sailing with a hold empty", "cross_family": false }, { "answer_id": "SOLAS12-BC-A-004", "score": 0.5527962446212769, "sibling_score": 0.5527962446212769, "answer_score": null, "sibling_qid": "KOC-2021-12-0044-Q003", "sibling_text": "solas chapter 12 explain said no of regulations stability damag stability excemptions about equilateral triangle water ingress alarm no crossquestion", "sibling_family": "", "via": "sibling", "answer_title": "The solid triangle mark and high-density-cargo restriction", "cross_family": false } ] }, { "qid": "MUM-2024-07-0185-Q003", "text": "Static and dynamic stability difference?", "family": "SOLAS", "subtopic": "Static / Dynamic Stability", "tid": "MUM-2024-07-0185", "tray": "review", "candidates": [ { "answer_id": "STAB-SD-C-001", "score": 0.7393261790275574, "sibling_score": 0.7393261790275574, "answer_score": 0.5702403664588928, "sibling_qid": "MUM-2026-01-0717-Q005", "sibling_text": "static dymanic stability", "sibling_family": "", "via": "sibling", "answer_title": "Static stability vs dynamic stability — and how each is measured", "cross_family": false }, { "answer_id": "STAB-SD-C-002", "score": 0.5281790047883987, "sibling_score": null, "answer_score": 0.5281790047883987, "sibling_qid": "", "sibling_text": "static stability what it is and what it quantifies", "sibling_family": "", "via": "answer_title", "answer_title": "Static stability — what it is and what it quantifies", "cross_family": false }, { "answer_id": "DAM-STAB-P03-001", "score": 0.5143283426761627, "sibling_score": null, "answer_score": 0.5143283426761627, "sibling_qid": "", "sibling_text": "intact static dynamic and damage stability difference and criteria intact stability means the ship is undamaged damage stability means one or more spaces are assumed flooded and the residual condition is assessed static stability is the righting lever gz at a stated heel angle dynamic stability is the area under the gz curve it represents work or energy to heel the ship through an angle", "sibling_family": "", "via": "answer_title", "answer_title": "Intact, static, dynamic and damage stability: difference and criteria", "cross_family": false } ] }, { "qid": "MUM-2024-07-0185-Q004", "text": "Shell exp plan and its importance?", "family": "Ship Construction & Stability", "subtopic": "Shell Expansion Plan", "tid": "MUM-2024-07-0185", "tray": "review", "candidates": [ { "answer_id": "SHELL-PLT-A-002", "score": 0.7048412561416626, "sibling_score": 0.7048412561416626, "answer_score": null, "sibling_qid": "MUM-2025-07-0347-Q004", "sibling_text": "shell exp plan", "sibling_family": "", "via": "sibling", "answer_title": "Shell plating, strakes, and the named strakes", "cross_family": false }, { "answer_id": "SHELL-PLT-A-001", "score": 0.688035786151886, "sibling_score": 0.688035786151886, 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What is a shell expansion plan and where is it used?", "cross_family": false } ] }, { "qid": "MUM-2024-07-0185-Q008", "text": "how will u check benzene and H2S? Where will u check this in bulk carrier? Procedure? What will u do after getting value on the tube?(cross)", "family": "SOLAS - General (HOLD)", "subtopic": "Solas Chapter 12 - Bulk", "tid": "MUM-2024-07-0185", "tray": "new", "candidates": [ { "answer_id": "BUNK-PLAN-004", "score": 0.5872392654418945, "sibling_score": 0.5872392654418945, "answer_score": null, "sibling_qid": "CHE-2024-06-0397-Q001", "sibling_text": "ce not there bunker barge arrived what you will do start with sopep scrubber plug quantity check bdn flash pont density sulphur content viscosity emergency signal grade of fuel", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Bunker plan: tank selection, quantity / overflow control, calculation and procedure", "cross_family": true }, { "answer_id": "COT-P03-01", "score": 0.584388792514801, "sibling_score": 0.584388792514801, "answer_score": 0.5053946673870087, "sibling_qid": "MUM-2024-12-0229-Q007", "sibling_text": "how will you check toxic gases and beneze", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "H₂S, benzene and toxic-cargo vapour exposure — hazards, limits, PPE and respirator checks", "cross_family": true }, { "answer_id": "TNK-SAFE-BF26-004", "score": 0.5766524076461792, "sibling_score": 0.5766524076461792, "answer_score": null, "sibling_qid": "KOC-2023-03-0163-Q003", "sibling_text": "what action to take it hc detected in ballast tank", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What safeties are fitted in the ballast tank of a tanker, and what do you do if hydrocarbon is detected?", "cross_family": true } ] }, { "qid": "MUM-2024-07-0185-Q009", "text": "Permit to work system? Explain?", "family": "Risk & Safety Management", "subtopic": "Permit to Work / Enclosed Space", "tid": "MUM-2024-07-0185", "tray": "new", "candidates": [ { "answer_id": "ESE-P01-003", "score": 0.517133355140686, "sibling_score": 0.517133355140686, "answer_score": 0.3205870747566223, "sibling_qid": "KOL-2022-03-0607-Q003", "sibling_text": "enclosed entry what checks what is permit", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "General enclosed-space entry procedure as second engineer", "cross_family": false }, { "answer_id": "AIR-DIST-002", "score": 0.48971638083457947, "sibling_score": 0.48971638083457947, "answer_score": null, "sibling_qid": "MUM-2022-12-1037-Q003", "sibling_text": "starting system explain", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Control-air route and starting sequence through the air distributor", "cross_family": true }, { "answer_id": "CPFE-583-001", "score": 0.42463958263397217, "sibling_score": 0.42463958263397217, "answer_score": null, "sibling_qid": "MUM-2025-01-2267-Q003", "sibling_text": "framo system working", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "The Framo system — what it is, how it works, and the driving mechanism", "cross_family": true } ] }, { "qid": "MUM-2024-07-0186-Q001", "text": "Type of ship sailed", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2024-07-0186", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8460181951522827, "sibling_score": 0.8460181951522827, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8450309634208679, "sibling_score": 0.8450309634208679, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7928885817527771, "sibling_score": 0.7928885817527771, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "MUM-2024-07-0187-Q001", "text": "Asked type of ship.: Vlcc Attempt: first", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2024-07-0187", "tray": "review", "candidates": [ { "answer_id": "LLST-AB-001", "score": 0.6929450035095215, "sibling_score": 0.6929450035095215, "answer_score": 0.4236900582909584, "sibling_qid": "CHE-2026-05-0614-Q001", "sibling_text": "start from type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.6331467032432556, "sibling_score": 0.6331467032432556, "answer_score": null, "sibling_qid": "CHE-2026-04-0520-Q008", "sibling_text": "po deciding ques type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "T038-P01-002", "score": 0.6159809231758118, "sibling_score": 0.6159809231758118, "answer_score": null, "sibling_qid": "CHE-2026-04-0374-Q001", "sibling_text": "type of ship sailed high or low voltage lv ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "HV system onboard — layout, components, applications, earthing & protection", "cross_family": false } ] }, { "qid": "MUM-2024-07-0187-Q002", "text": "Hazardous zones on oil tanker", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "MUM-2024-07-0187", "tray": "review", "candidates": [ { "answer_id": "TCM-374-005", "score": 0.7358921766281128, "sibling_score": 0.7358921766281128, "answer_score": null, "sibling_qid": "KOC-2026-04-0912-Q020", "sibling_text": "hazard zone in chemical tanker", "sibling_family": "", "via": "sibling", "answer_title": "Gas-freeing a tanker after discharge or before dry dock (why through the IG system)", "cross_family": false }, { "answer_id": "TNK-SAFE-BF26-003", "score": 0.7186338901519775, "sibling_score": 0.7186338901519775, "answer_score": 0.5769239544868469, "sibling_qid": "KOL-2026-01-1153-Q006", "sibling_text": "different type of zones in oil tanker in hazardous area example of equipments fitted in different zones", "sibling_family": "", "via": "sibling", "answer_title": "What safeties, including electrical safeties and Ex ratings, are provided on the deck of a tanker?", "cross_family": false }, { "answer_id": "ELEC-SAFE-010", "score": 0.6356248259544373, "sibling_score": 0.6356248259544373, "answer_score": null, "sibling_qid": "KOL-2021-09-2490-Q005", "sibling_text": "bunker safeties in tanker", "sibling_family": "", "via": "sibling", "answer_title": "Electrical safety during bunkering and tanker bunker operations", "cross_family": false } ] }, { "qid": "MUM-2024-07-0187-Q006", "text": "What is CSR, what are the forms in csr( never heard about this question)", "family": "Surveys - Statutory", "subtopic": "CSR / Continuous Synopsis Record", "tid": "MUM-2024-07-0187", "tray": "review", "candidates": [ { "answer_id": "CERT-LIST-P01-001", "score": 0.6974982023239136, "sibling_score": 0.6974982023239136, "answer_score": null, "sibling_qid": "KOL-2026-01-1159-Q006", "sibling_text": "csr and its forms", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "List the statutory certificates carried onboard a ship.", "cross_family": false }, { "answer_id": "CSR-585-001", "score": 0.6087920069694519, "sibling_score": 0.6087920069694519, "answer_score": 0.31046061813831327, "sibling_qid": "KOC-2025-11-0718-Q006", "sibling_text": "what is csr", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the Continuous Synopsis Record (CSR)? Explain its purpose and requirements.", "cross_family": false }, { "answer_id": "PSC-RO-P02-007", "score": 0.4410706162452698, "sibling_score": 0.4410706162452698, "answer_score": 0.2976388901472092, "sibling_qid": "KOC-2025-08-0650-Q009", "sibling_text": "psc form a and form b", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What are PSC Form A and Form B?", "cross_family": false } ] }, { "qid": "MUM-2024-07-0188-Q002", "text": "Scantling draught", "family": "", "subtopic": "Scantlings", "tid": "MUM-2024-07-0188", "tray": "review", "candidates": [ { "answer_id": "LLC-P05-001", "score": 0.7183477878570557, "sibling_score": 0.7183477878570557, "answer_score": 0.4979188472032547, "sibling_qid": "MUM-2026-01-0726-Q007", "sibling_text": "scantling draught", "sibling_family": "", "via": "sibling", "answer_title": "Freeboard, deck line, Plimsoll mark, assignment and scantling draft", "cross_family": false }, { "answer_id": "LLC-P05-002", "score": 0.5305184125900269, "sibling_score": 0.5305184125900269, "answer_score": null, "sibling_qid": "KOL-2022-04-0622-Q010", "sibling_text": "if ship in port after loading at certain draught when in sea draught inc or dec fresh water allowance", "sibling_family": "", "via": "sibling", "answer_title": "Fresh Water Allowance: formula, use and draft change", "cross_family": false }, { "answer_id": "LL-CONV-P06-002", "score": 0.5048690438270569, "sibling_score": 0.5048690438270569, "answer_score": null, "sibling_qid": "KOC-2024-03-0321-Q017", "sibling_text": "loadline markings summer loadline winter loadline freshwater line why it s there draft level increase decrease with respect to loadline markings", "sibling_family": "", "via": "sibling", "answer_title": "LLC-P06-02 - Types of load lines: standard, seasonal, timber, WNA and multiple load lines", "cross_family": false } ] }, { "qid": "MUM-2024-07-0960-Q002", "text": "Written and oral status.", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2024-07-0960", "tray": "review", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.7631154656410217, "sibling_score": 0.7631154656410217, "answer_score": null, "sibling_qid": "MUM-2026-05-3187-Q001", "sibling_text": "status of other orals and written", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.5738569498062134, "sibling_score": 0.5738569498062134, "answer_score": null, "sibling_qid": "MUM-2026-05-2995-Q001", "sibling_text": "written and oral status type of ship and company", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": true }, { "answer_id": "AE-CRP-005", "score": 0.44687795639038086, "sibling_score": 0.44687795639038086, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q001", "sibling_text": "type of vessel engine make written and oral status", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": true } ] }, { "qid": "MUM-2024-07-0960-Q003", "text": "Type of Ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2024-07-0960", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8363436460494995, "sibling_score": 0.8363436460494995, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.801550567150116, "sibling_score": 0.801550567150116, "answer_score": 0.5469070851802825, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.800115168094635, "sibling_score": 0.800115168094635, "answer_score": 0.521607282757759, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2024-07-0960-Q004", "text": "Type of Boiler and specification.", "family": "Boilers - Operations & Firing", "subtopic": "Boiler Operations", "tid": "MUM-2024-07-0960", "tray": "review", "candidates": [ { "answer_id": "BLRBURN-002", "score": 0.775417685508728, "sibling_score": 0.775417685508728, "answer_score": null, "sibling_qid": "MUM-2026-03-2952-Q013", "sibling_text": "what type of boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Draw and explain the steam-assisted pressure jet burner — its advantages, disadvantages and nozzle material.", "cross_family": false }, { "answer_id": "BLR-CAP-BOILER-CAPACITY-RATING-006", "score": 0.7609637975692749, "sibling_score": 0.7609637975692749, "answer_score": 0.6171655178070068, "sibling_qid": "KOC-2026-05-0034-Q009", "sibling_text": "boiler specifications", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "State the boiler specifications relevant to rating/capacity.", "cross_family": true }, { "answer_id": "BLR-CAP-BOILER-CAPACITY-RATING-005", "score": 0.7494255304336548, "sibling_score": 0.7494255304336548, "answer_score": null, "sibling_qid": "MUM-2026-09-3891-Q009", "sibling_text": "type of boiler", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What are boiler pressure ratings or maximum working pressure?", "cross_family": true } ] }, { "qid": "MUM-2024-07-0960-Q008", "text": "3 element feed controller", "family": "Boilers - Operations & Firing", "subtopic": "Low Water Level", "tid": "MUM-2024-07-0960", "tray": "review", "candidates": [ { "answer_id": "LWL-001", "score": 0.6758448481559753, "sibling_score": 0.6758448481559753, "answer_score": 0.3057559639215469, "sibling_qid": "KOL-2025-11-2910-Q003", "sibling_text": "3 elements controller", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Explain three-element boiler water level control — the three elements, how it removes swell and shrinkage, and how the PID works", "cross_family": false }, { "answer_id": "DP-TX-003", "score": 0.6193862557411194, "sibling_score": 0.6193862557411194, "answer_score": 0.29304189682006837, "sibling_qid": "KOL-2021-05-1589-Q005", "sibling_text": "3 element cntrl", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler feed-water control with the DP cell — single, two and three-element", "cross_family": false }, { "answer_id": "CTRL-TL-007", "score": 0.6132460236549377, "sibling_score": 0.6132460236549377, "answer_score": 0.3618783444166183, "sibling_qid": "MUM-2026-02-2919-Q008", "sibling_text": "three element controller", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Three-element control and boiler-water level control", "cross_family": true } ] }, { "qid": "MUM-2024-07-0960-Q011", "text": "HP turbine type and stages.", "family": "Steam & Turbine Plant", "subtopic": "Turbine Construction / Blading / Stages", "tid": "MUM-2024-07-0960", "tray": "review", "candidates": [ { "answer_id": "COPT-BF043-003", "score": 0.7366455793380737, "sibling_score": 0.7366455793380737, "answer_score": null, "sibling_qid": "MUM-2026-05-3310-Q002", "sibling_text": "copt turbine type and stages", "sibling_family": "Steam & Turbine Plant", "via": "sibling", "answer_title": "3. Starting and running a COPT; bringing No.2 on with No.1 running", "cross_family": false }, { "answer_id": "COPT-BF043-007", "score": 0.5787113904953003, "sibling_score": 0.5787113904953003, "answer_score": 0.44796850085258483, "sibling_qid": "KOC-2025-11-1073-Q006", "sibling_text": "what all are the trips associated with hp turbine", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "7. Trips on the HP turbine", "cross_family": true }, { "answer_id": "TURBO-CS-P02-009", "score": 0.5743657350540161, "sibling_score": 0.5743657350540161, "answer_score": null, "sibling_qid": "KOL-2018-07-3163-Q003", "sibling_text": "turbine n rotor expansion arrangements", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharger rotor assembly — components, functions and expansion", "cross_family": true } ] }, { "qid": "MUM-2024-07-0960-Q012", "text": "Alarms in HP turbine", "family": "Turbocharger", "subtopic": "Turbine Alarms / Monitoring", "tid": "MUM-2024-07-0960", "tray": "new", "candidates": [ { "answer_id": "LO-PR-ALM-001", "score": 0.5941873788833618, "sibling_score": 0.5941873788833618, "answer_score": null, "sibling_qid": "MUM-2023-11-2211-Q001", "sibling_text": "actions as 2e when lo lp alarm main engine", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main engine low lubricating-oil pressure — alarm, slowdown or trip: your actions as 2/E, and is the alarm true or false?", "cross_family": true }, { "answer_id": "LWL-006", "score": 0.5937998294830322, "sibling_score": 0.5937998294830322, "answer_score": null, "sibling_qid": "KOC-2025-04-1037-Q013", "sibling_text": "boiler low level alarm actions taken", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "On watch you find no water in the boiler gauge glass. What are your checks and immediate actions? What if both gauge glasses read wrong?", "cross_family": true }, { "answer_id": "IGAT-583-003", "score": 0.5925717353820801, "sibling_score": 0.5925717353820801, "answer_score": null, "sibling_qid": "KOC-2023-01-0976-Q003", "sibling_text": "all i g alarms high pr set point and low pr set point", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What are the set values for the IG system alarms and trips — IG line high, low and low-low pressure, oxygen content, PV valve and breaker pressures?", "cross_family": true } ] }, { "qid": "MUM-2024-07-0960-Q013", "text": "Vibration value of trip in HP turbine and unit of vibration.", "family": "Steam & Turbine Plant", "subtopic": "Turbine vibration monitoring / protection", "tid": "MUM-2024-07-0960", "tray": "new", "candidates": [ { "answer_id": "COPT-BF043-007", "score": 0.5616801381111145, "sibling_score": 0.5616801381111145, "answer_score": 0.4883893638849258, "sibling_qid": "KOC-2025-11-1073-Q006", "sibling_text": "what all are the trips associated with hp turbine", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "7. Trips on the HP turbine", "cross_family": true }, { "answer_id": "VIB-BAL-B-005", "score": 0.531790018081665, "sibling_score": 0.531790018081665, "answer_score": 0.4004885286092758, "sibling_qid": "MUM-2022-09-1023-Q001", "sibling_text": "defn of vibration types of vibration torsional vibration in detail critical rpm", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Critical speed / barred speed range", "cross_family": true }, { "answer_id": "TC-CS-P01-011", "score": 0.5104614496231079, "sibling_score": 0.5104614496231079, "answer_score": null, "sibling_qid": "KOC-2021-08-1765-Q011", "sibling_text": "a e t c rpm value", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "K·Turbocharger rpm — typical values", "cross_family": true } ] }, { "qid": "MUM-2024-07-0960-Q014", "text": "Main condenser ovbd valve instructions.", "family": "Boilers - Construction & Components", "subtopic": "Cascade Tank / Condenser", "tid": "MUM-2024-07-0960", "tray": "new", "candidates": [ { "answer_id": "ECON-EGB-004", "score": 0.584352433681488, "sibling_score": 0.584352433681488, "answer_score": null, "sibling_qid": "KOC-2022-08-1790-Q004", "sibling_text": "economiser safety valve setting procedure", "sibling_family": "Boilers - 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Operations & Firing", "via": "sibling", "answer_title": "Two-element and three-element boiler water level control", "cross_family": false } ] }, { "qid": "MUM-2024-07-1086-Q006", "text": "Me lub oil pressure low actions", "family": "2-Stroke - Operations & Casualty", "subtopic": "ME LP Alarm Action", "tid": "MUM-2024-07-1086", "tray": "review", "candidates": [ { "answer_id": "LO-PR-ALM-001", "score": 0.7208520174026489, "sibling_score": 0.7208520174026489, "answer_score": 0.5652531087398529, "sibling_qid": "MUM-2026-01-1244-Q006", "sibling_text": "action as 2ae if low lube oil pressure alarm comes", "sibling_family": "Fault Diagnosis & 2/E Actions", "via": "sibling", "answer_title": "Main engine low lubricating-oil pressure — alarm, slowdown or trip: your actions as 2/E, and is the alarm true or false?", "cross_family": true }, { "answer_id": "AE-LOLOSS-001", "score": 0.6776143312454224, "sibling_score": 0.6776143312454224, "answer_score": 0.5617367774248123, "sibling_qid": "MUM-2025-12-2520-Q003", "sibling_text": "ae l ub oil pressure down reasons what will u do", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Auxiliary engine LO pressure drops — causes and immediate actions", "cross_family": true }, { "answer_id": "REEF-COMP-002", "score": 0.6760042905807495, "sibling_score": 0.6760042905807495, "answer_score": 0.5230063676834106, "sibling_qid": "KOC-2024-07-1370-Q008", "sibling_text": "lube oil low pressure trip", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Lube-oil low-pressure / differential-pressure trip — how it works, tests and sets", "cross_family": true } ] }, { "qid": "MUM-2024-07-1087-Q001", "text": "Types of ships sailed", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2024-07-1087", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8162106871604919, "sibling_score": 0.8162106871604919, "answer_score": null, "sibling_qid": "CHE-2026-09-3938-Q001", "sibling_text": "types of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7797151803970337, "sibling_score": 0.7797151803970337, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7758318781852722, "sibling_score": 0.7758318781852722, "answer_score": 0.509307849407196, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "MUM-2024-07-1087-Q002", "text": "Types of engines", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2024-07-1087", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.7059539556503296, "sibling_score": 0.7059539556503296, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.7014650702476501, "sibling_score": 0.7014650702476501, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-001", "score": 0.44160171449184416, "sibling_score": null, "answer_score": 0.44160171449184416, "sibling_qid": "", "sibling_text": "1 turbocharger type main engine vs generator engine compressor is centrifugal in both cases only the turbine type differs large slow speed main engine axial flow turbine single stage constant pressure system", "sibling_family": "", "via": "answer_title", "answer_title": "1. Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "MUM-2024-07-1087-Q007", "text": "Explain Boiler water level controller.", "family": "Boilers - Operations & Firing", "subtopic": "Boiler Operations", "tid": "MUM-2024-07-1087", "tray": "review", "candidates": [ { "answer_id": "DP-TX-003", "score": 0.8037244081497192, "sibling_score": 0.8037244081497192, "answer_score": null, "sibling_qid": "KOL-2019-07-1875-Q003", "sibling_text": "boiler water level controller", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler feed-water control with the DP cell — single, two and three-element", "cross_family": false }, { "answer_id": "LWL-003", "score": 0.8005302548408508, "sibling_score": 0.8005302548408508, "answer_score": 0.5911564707756042, "sibling_qid": "KOC-2022-05-0962-Q004", "sibling_text": "what type of water level controller for boiler explain", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "What type of water level controller is fitted on your boiler? Explain and draw it, and how it controls the level", "cross_family": false }, { "answer_id": "LWL-001", "score": 0.7816397547721863, "sibling_score": 0.7816397547721863, "answer_score": 0.5874152421951294, "sibling_qid": "KOL-2024-05-2713-Q005", "sibling_text": "three elements control in a boiler for water level control explain in detail", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Explain three-element boiler water level control — the three elements, how it removes swell and shrinkage, and how the PID works", "cross_family": false } ] }, { "qid": "MUM-2024-07-1088-Q001", "text": "Type of ship, type of main engine", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "MUM-2024-07-1088", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P01-001", "score": 0.8082690834999084, "sibling_score": 0.8082690834999084, "answer_score": null, "sibling_qid": "MUM-2026-07-3668-Q004", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.807429313659668, "sibling_score": 0.807429313659668, "answer_score": null, "sibling_qid": "MUM-2026-09-3882-Q001", "sibling_text": "introduction types of ship main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "AC-VE-001", "score": 0.7355687618255615, "sibling_score": 0.7355687618255615, "answer_score": null, "sibling_qid": "MUM-2026-01-2904-Q001", "sibling_text": "what type of ship engine power and nomenclature", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Volumetric efficiency: define it, and if it drops how do you improve it (with bumping clearance)?", "cross_family": false } ] }, { "qid": "MUM-2024-07-1088-Q005", "text": "What is under slung type of crankshaft?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Modern Bedplate Construction", "tid": "MUM-2024-07-1088", "tray": "review", "candidates": [ { "answer_id": "CRANK-217-003", "score": 0.7230697274208069, "sibling_score": 0.7230697274208069, "answer_score": 0.5263920366764069, "sibling_qid": "MUM-2022-10-1031-Q009", "sibling_text": "underslung crankshaft", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Underslung crankshaft", "cross_family": false }, { "answer_id": "CRANK-217-001", "score": 0.6302817463874817, "sibling_score": 0.6302817463874817, "answer_score": 0.4594563484191894, "sibling_qid": "MUM-2026-01-1240-Q003", "sibling_text": "crankshaft type explain semi built", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankshaft types and how the type is identified", "cross_family": false }, { "answer_id": "CRANK-217-004", "score": 0.6149572730064392, "sibling_score": 0.6149572730064392, "answer_score": null, "sibling_qid": "MUM-2026-02-2570-Q003", "sibling_text": "semi built crank shaft slippage", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankshaft slippage, tell-tale marks and action if found", "cross_family": false } ] }, { "qid": "MUM-2024-07-1088-Q006", "text": "Explain in detail turbocharger lubrication system?", "family": "Turbocharger", "subtopic": "TC Bearing", "tid": "MUM-2024-07-1088", "tray": "review", "candidates": [ { "answer_id": "TC-CS-P01-013", "score": 0.7292062640190125, "sibling_score": 0.7292062640190125, "answer_score": 0.6273347854614257, "sibling_qid": "KOC-2024-07-1847-Q007", "sibling_text": "lubrication of ae turbocharger", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "M·Lubrication of the auxiliary-engine turbocharger", "cross_family": false }, { "answer_id": "TURBO-CS-P03-009", "score": 0.7190998196601868, "sibling_score": 0.7190998196601868, "answer_score": 0.524442994594574, "sibling_qid": "KOL-2022-07-1702-Q004", "sibling_text": "me turbocharger type nozzle ring working types of lubrication", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Lubrication arrangement: integral vs external, sealing air", "cross_family": false }, { "answer_id": "TC-CONST-005", "score": 0.6965233087539673, "sibling_score": 0.6965233087539673, "answer_score": null, "sibling_qid": "MUM-2025-07-2815-Q005", "sibling_text": "turbocharger compressor side construction and type of bearing and lubrication", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Compressor/blower side components and air flow", "cross_family": false } ] }, { "qid": "MUM-2024-07-1088-Q007", "text": "Types of bearings of turbocharger and where fitted ?", "family": "Turbocharger", "subtopic": "TC Bearing", "tid": "MUM-2024-07-1088", "tray": "review", "candidates": [ { "answer_id": "TURBO-CS-P03-008", "score": 0.798058271408081, "sibling_score": 0.798058271408081, "answer_score": 0.6236301869153976, "sibling_qid": "CHE-2026-03-0181-Q012", "sibling_text": "turbocharger types of bearing", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharger bearings: types, lubrication, damage and action", "cross_family": false }, { "answer_id": "TCS-059-P04-006", "score": 0.7388663291931152, "sibling_score": 0.7388663291931152, "answer_score": 0.6414776265621185, "sibling_qid": "KOL-2023-12-3665-Q003", "sibling_text": "in radial turbocharger what kind of bearing used arrangement for axial thrust", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Bearings and axial thrust (radial turbocharger)", "cross_family": false }, { "answer_id": "TC-CONST-005", "score": 0.7366853356361389, "sibling_score": 0.7366853356361389, "answer_score": null, "sibling_qid": "MUM-2025-07-2815-Q005", "sibling_text": "turbocharger compressor side construction and type of bearing and lubrication", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Compressor/blower side components and air flow", "cross_family": false } ] }, { "qid": "MUM-2024-07-1436-Q001", "text": "Power plant on bulk carrier", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2024-07-1436", "tray": "review", "candidates": [ { "answer_id": "ALT-GEN-P02-001", "score": 0.7061101198196411, "sibling_score": 0.7061101198196411, "answer_score": null, "sibling_qid": "MUM-2026-09-3974-Q008", "sibling_text": "define last vessel power generation system", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Alternator/generator specifications, ratings and ship electrical supply details", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-001", "score": 0.64210045337677, "sibling_score": 0.64210045337677, "answer_score": null, "sibling_qid": "MUM-2026-02-1280-Q002", "sibling_text": "type of boiler compressor and generator on ship", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "1. Turbocharger type — main engine vs generator engine", "cross_family": true }, { "answer_id": "AE-CRP-005", "score": 0.6379123330116272, "sibling_score": 0.6379123330116272, "answer_score": null, "sibling_qid": "MUM-2026-09-3882-Q001", "sibling_text": "introduction types of ship main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "MUM-2024-07-1437-Q007", "text": "Instructions to be given to Junior Officers regarding Electrical Watchkeeping and safety?", "family": "ISM Code", "subtopic": "Joining Ship Handover", "tid": "MUM-2024-07-1437", "tray": "new", "candidates": [ { "answer_id": "ISM-AUD-P02-004", "score": 0.5506435632705688, "sibling_score": 0.5506435632705688, "answer_score": null, "sibling_qid": "KOC-2026-02-0799-Q015", "sibling_text": "when a junior join in ship what all u do familiarise him about means of escape alarm sounds especially co2 alarm sounds", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "SMS contents, manuals, documents and drill records onboard", "cross_family": false }, { "answer_id": "ELEC-SAFE-010", "score": 0.5474796295166016, "sibling_score": 0.5474796295166016, "answer_score": null, "sibling_qid": "KOL-2025-08-2825-Q005", "sibling_text": "electrical safety while bunker", "sibling_family": "", "via": "sibling", "answer_title": "Electrical safety during bunkering and tanker bunker operations", "cross_family": false }, { "answer_id": "IRT-A-013", "score": 0.5370041131973267, "sibling_score": 0.5370041131973267, "answer_score": 0.4416410803794861, "sibling_qid": "KOL-2022-05-2560-Q003", "sibling_text": "electrical officer chkd insulation resistance of all motor in e r and make a report and submit to 2e as a 2e what ur action", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Electrical officer hands you an IR report - your action as 2/E", "cross_family": true } ] }, { "qid": "MUM-2024-07-1443-Q005", "text": "Alternator overhauling. What all checks will be carried out. What safeties are considered.", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator Protection", "tid": "MUM-2024-07-1443", "tray": "review", "candidates": [ { "answer_id": "ALT-MAINT-A-001", "score": 0.7494049668312073, "sibling_score": 0.7494049668312073, "answer_score": 0.5452771246433258, "sibling_qid": "MUM-2026-06-3545-Q003", "sibling_text": "safeties to be carried out while maintenance on alternator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Routine maintenance & care of a ship’s alternator", "cross_family": false }, { "answer_id": "ALT-GEN-P01-001", "score": 0.7382276654243469, "sibling_score": 0.7382276654243469, "answer_score": null, "sibling_qid": "MUM-2026-05-3046-Q005", "sibling_text": "safeties for alternator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Alternator/generator safeties and protection trips", "cross_family": false }, { "answer_id": "ALT-MTN-B-001", "score": 0.5742979407310486, "sibling_score": null, "answer_score": 0.5742979407310486, "sibling_qid": "", "sibling_text": "routine onboard alternator maintenance checks clean air path dry low pressure air blow through cooler and filters clear keep winding temperature in band insulation resistance to earth on a megger trended over time investigate a falling trend do not wait for the alarm", "sibling_family": "", "via": "answer_title", "answer_title": "Routine onboard alternator maintenance checks", "cross_family": false } ] }, { "qid": "MUM-2024-07-1444-Q001", "text": "What type of ships sailed on?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2024-07-1444", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.7465278506278992, "sibling_score": 0.7465278506278992, "answer_score": null, "sibling_qid": "MUM-2026-02-0769-Q001", "sibling_text": "what types of ships sailed on", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7003857493400574, "sibling_score": 0.7003857493400574, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.42274993807077405, "sibling_score": null, "answer_score": 0.42274993807077405, "sibling_qid": "", "sibling_text": "type a and type b ships how form and cargo set the freeboard", "sibling_family": "", "via": "answer_title", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "MUM-2024-07-1444-Q006", "text": "How to know the Max full load current of a motor.", "family": "Electrical - Motors & Starters", "subtopic": "Motor Specification / Ordering", "tid": "MUM-2024-07-1444", "tray": "new", "candidates": [ { "answer_id": "IM-TRQ-P02-001", "score": 0.6384664177894592, "sibling_score": 0.6384664177894592, "answer_score": null, "sibling_qid": "KOL-2022-10-2615-Q005", "sibling_text": "induction motor max torque criteria", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Factors affecting torque; conditions for maximum torque", "cross_family": false }, { "answer_id": "GMC-583-B-005", "score": 0.6241117119789124, "sibling_score": 0.6241117119789124, "answer_score": null, "sibling_qid": "KOC-2023-03-1245-Q003", "sibling_text": "checking of current in running motor n x", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Proving a meter faulty, and getting the reading another way", "cross_family": true }, { "answer_id": "IRT-C-003", "score": 0.6103033423423767, "sibling_score": 0.6103033423423767, "answer_score": null, "sibling_qid": "MUM-2025-08-1573-Q011", "sibling_text": "ir testing of motor procedure max voltage of megger for hv system", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "HV vs LV megger — choosing the test voltage", "cross_family": false } ] }, { "qid": "MUM-2024-07-1445-Q005", "text": "One of the rotating rectifier diode gets short circuited. What will be the effect.", "family": "Electrical - Generator & Alternator", "subtopic": "Diode Short / Open", "tid": "MUM-2024-07-1445", "tray": "review", "candidates": [ { "answer_id": "DIODESO-001", "score": 0.7646642327308655, "sibling_score": 0.7646642327308655, "answer_score": 0.477261483669281, "sibling_qid": "MUM-2025-12-1831-Q002", "sibling_text": "what will happen when rotating rectifier diodes get short ckted and open ckted", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Two alternators in parallel — one rotating rectifier diode goes short circuit. What happens, what if it goes open instead, and how do you know which it is?", "cross_family": false }, { "answer_id": "DIODESO-002", "score": 0.6288591027259827, "sibling_score": 0.6288591027259827, "answer_score": 0.44221353232860566, "sibling_qid": "KOL-2016-08-2063-Q001", "sibling_text": "brushless excitation problems diode shrt ckt", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Explain the rotating diodes in a brushless alternator and the problems that arise in the brushless excitation system, including diode short circuit", "cross_family": false }, { "answer_id": "AVR-EXC-G-003", "score": 0.4473455369472504, "sibling_score": null, "answer_score": 0.4473455369472504, "sibling_qid": "", "sibling_text": "loss or reduction of excitation effect and action single machine terminal voltage collapses as the field dies paralleled machine draws magnetising var from the bus behaves as an induction generator reverse leading reactive power rising stator current heating", "sibling_family": "", "via": "answer_title", "answer_title": "Loss or reduction of excitation: effect and action", "cross_family": false } ] }, { "qid": "MUM-2024-07-1446-Q003", "text": "what is intrensically safe meaning,which equipment install on tanker with intrensically safe system", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "MUM-2024-07-1446", "tray": "review", "candidates": [ { "answer_id": "HAZ-EX-B-001", "score": 0.6915014982223511, "sibling_score": 0.6915014982223511, "answer_score": 0.5123997688293457, "sibling_qid": "KOL-2025-06-2788-Q005", "sibling_text": "non intrinsically safe equipments used on tankers", "sibling_family": "", "via": "sibling", "answer_title": "Intrinsically safe (Ex i) equipment — what it is, how it works, where it is used, how you identify it", "cross_family": false }, { "answer_id": "TNK-SAFE-BF26-002", "score": 0.6386584639549255, "sibling_score": 0.6386584639549255, "answer_score": null, "sibling_qid": "MUM-2023-09-1400-Q003", "sibling_text": "electrical safeties installed inside cargo tank", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What safeties are provided on the cargo tanks of an oil, crude or chemical tanker?", "cross_family": false }, { "answer_id": "FFF-A-001", "score": 0.6351384520530701, "sibling_score": 0.6351384520530701, "answer_score": null, "sibling_qid": "KOL-2017-03-0073-Q002", "sibling_text": "fixed fire systems on board ur tanker", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fixed firefighting on deck and in the cargo area — tankers, chemical and gas carriers", "cross_family": false } ] }, { "qid": "MUM-2024-07-1447-Q001", "text": "Brushless exciter KVa rating of your ship", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator / Generator", "tid": "MUM-2024-07-1447", "tray": "review", "candidates": [ { "answer_id": "PWR-ARA-004", "score": 0.6641830801963806, "sibling_score": 0.6641830801963806, "answer_score": null, "sibling_qid": "MUM-2026-06-3467-Q006", "sibling_text": "why alternator in kva how many in your ship ratings this was first question", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Why an alternator is rated in kVA, not kW", "cross_family": false }, { "answer_id": "ALT-GEN-P02-001", "score": 0.6238915324211121, "sibling_score": 0.6238915324211121, "answer_score": 0.4839957356452942, "sibling_qid": "KOC-2024-10-1422-Q003", "sibling_text": "alternator rating onboard kva and kw", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Alternator/generator specifications, ratings and ship electrical supply details", "cross_family": false }, { "answer_id": "BRUSHALT-A-001", "score": 0.6162195801734924, "sibling_score": 0.6162195801734924, "answer_score": 0.4516382932662964, "sibling_qid": "CHE-2026-05-0553-Q003", "sibling_text": "brushless exciter", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01 · Working principle of the brushless alternator / brushless excitation systemHigh", "cross_family": false } ] }, { "qid": "MUM-2024-07-2233-Q002", "text": "Boiler cold and hot layup", "family": "Boilers - Safety & Survey", "subtopic": "Wet/Dry Layup", "tid": "MUM-2024-07-2233", "tray": "new", "candidates": [ { "answer_id": "BLR-SURV-P02-004", "score": 0.5284237265586853, "sibling_score": 0.5284237265586853, "answer_score": null, "sibling_qid": "MUM-2026-06-3564-Q002", "sibling_text": "tests on boiler structure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "BLR-OPS-001", "score": 0.5255722999572754, "sibling_score": 0.5255722999572754, "answer_score": null, "sibling_qid": "KOL-2019-09-1482-Q005", "sibling_text": "boiler raising from cold", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Explain the procedure for raising steam in an auxiliary boiler from cold.", "cross_family": true }, { "answer_id": "BLR-SURV-P02-008", "score": 0.5114045739173889, "sibling_score": 0.5114045739173889, "answer_score": null, "sibling_qid": "MUM-2026-06-3504-Q012", "sibling_text": "boiler survey and boiler gasket material", "sibling_family": "Boilers - 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Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "MUM-2024-07-2765-Q002", "text": "How is the gas injection carried out?", "family": "Dual Fuel / Gas Systems", "subtopic": "Gas Injection", "tid": "MUM-2024-07-2765", "tray": "new", "candidates": [ { "answer_id": "MEGI-304-003", "score": 0.6459859013557434, "sibling_score": 0.6459859013557434, "answer_score": 0.4752516448497772, "sibling_qid": "KOC-2024-06-2049-Q003", "sibling_text": "how is the gas injection carried out", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "3. How LNG / gas is fed, admitted or injected — and at what cycle and compression", "cross_family": true }, { "answer_id": "DFUEL-566-001", "score": 0.5329421758651733, "sibling_score": 0.5329421758651733, "answer_score": null, "sibling_qid": "MUM-2026-05-3267-Q003", "sibling_text": "how gas injection and pilot fuel injection", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "How does a dual-fuel engine use gas fuel with pilot fuel injection — and can it run on both liquid and gas?", "cross_family": true }, { "answer_id": "REEF-CHG-001", "score": 0.5115811228752136, "sibling_score": 0.5115811228752136, "answer_score": null, "sibling_qid": "CHE-2026-03-0253-Q006", "sibling_text": "refer gas charging procedure", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "01Charging or replenishing the refrigerant in a refrigeration / AC plant", "cross_family": true } ] }, { "qid": "MUM-2024-07-2765-Q003", "text": "What is an octane number? What is cetane number? How much for your engine?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Quality / CCAI", "tid": "MUM-2024-07-2765", "tray": "review", "candidates": [ { "answer_id": "FQCC-583-B-005", "score": 0.7364042401313782, "sibling_score": 0.7364042401313782, "answer_score": 0.5857875108718872, "sibling_qid": "KOC-2023-08-0983-Q001", "sibling_text": "cetane no octane no", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Cetane number, octane number and fuel ignition quality — why no cetane number for residual fuels?", "cross_family": false }, { "answer_id": "FQCC-583-A-001", "score": 0.7039613127708435, "sibling_score": 0.7039613127708435, "answer_score": 0.4410844355821609, "sibling_qid": "MUM-2026-06-3450-Q011", "sibling_text": "what is octane cetane and ccai", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "CCAI — what it is, how it is calculated, and what it is really for", "cross_family": false }, { "answer_id": "BDI-469-001", "score": 0.5854833126068115, "sibling_score": 0.5854833126068115, "answer_score": null, "sibling_qid": "MUM-2024-07-1084-Q011", "sibling_text": "fuel density from 91 to 95", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "New bunker density is higher or different from the previous fuel — your actions", "cross_family": true } ] }, { "qid": "MUM-2024-07-2765-Q004", "text": "What is FAME?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Quality / CCAI", "tid": "MUM-2024-07-2765", "tray": "new", "candidates": [ { "answer_id": "BIO-FUEL-005", "score": 0.6091626286506653, "sibling_score": 0.6091626286506653, "answer_score": 0.2211612045764923, "sibling_qid": "MUM-2026-01-0674-Q008", "sibling_text": "what is fame", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Biofuel and FAME as marine fuel", "cross_family": false }, { "answer_id": "FQCC-583-A-004", "score": 0.6088330149650574, "sibling_score": 0.6088330149650574, "answer_score": 0.287874199450016, "sibling_qid": "MUM-2026-06-3392-Q001", "sibling_text": "what is fame", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "FAME — what it is, why it is blended, and the limits", "cross_family": false }, { "answer_id": "EFBF-330-004", "score": 0.6086294054985046, "sibling_score": 0.6086294054985046, "answer_score": 0.29596999436616894, "sibling_qid": "MUM-2026-07-3684-Q003", "sibling_text": "what is fame", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "What is FAME?", "cross_family": false } ] }, { "qid": "MUM-2024-07-2765-Q007", "text": "Explain the Boiler expansion Arrangement?", "family": "Boilers - Operations & Firing", "subtopic": "Boiler Operations", "tid": "MUM-2024-07-2765", "tray": "review", "candidates": [ { "answer_id": "BLR-TUBE-P01-003", "score": 0.759215235710144, "sibling_score": 0.759215235710144, "answer_score": 0.5414757072925568, "sibling_qid": "CHE-2026-05-0613-Q004", "sibling_text": "expansion arrangement boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "02. Thermal expansion arrangements for boiler tubes", "cross_family": true }, { "answer_id": "DP-TX-006", "score": 0.6588863134384155, "sibling_score": 0.6588863134384155, "answer_score": null, "sibling_qid": "KOL-2025-08-2012-Q004", "sibling_text": "swell and shrink in boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler swell and shrink in relation to DP level measurement and control", "cross_family": false }, { "answer_id": "ACC-603-007", "score": 0.6573510766029358, "sibling_score": 0.6573510766029358, "answer_score": 0.4921817123889923, "sibling_qid": "KOC-2026-03-1728-Q003", "sibling_text": "flapper nozzle arrangement in boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "The flapper-nozzle arrangement in the boiler control system", "cross_family": false } ] }, { "qid": "MUM-2024-07-2766-Q001", "text": "Types of ships sailed (Chemical tanker)", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2024-07-2766", "tray": "review", "candidates": [ { "answer_id": "IBC-BCH-B-004", "score": 0.8470428586006165, "sibling_score": 0.8470428586006165, "answer_score": null, "sibling_qid": "MUM-2026-05-3156-Q001", "sibling_text": "type of ships chemical tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Certificate of Fitness and MARPOL Annex II in practice", "cross_family": false }, { "answer_id": "BCH-IBC-A-001", "score": 0.827839195728302, "sibling_score": 0.827839195728302, "answer_score": 0.5955202072858811, "sibling_qid": "CHE-2026-03-0128-Q001", "sibling_text": "type of chemical tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type 1, Type 2 and Type 3 chemical tankers — the ship-type classification", "cross_family": false }, { "answer_id": "COT-01", "score": 0.8036782145500183, "sibling_score": 0.8036782145500183, "answer_score": 0.5987774431705475, "sibling_qid": "KOC-2026-04-0892-Q003", "sibling_text": "type of ship sailed tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Oil-tanker types, definitions and cargo capability", "cross_family": false } ] }, { "qid": "MUM-2024-07-2766-Q007", "text": "What is FEMA", "family": "NDT & Material Testing", "subtopic": "NDT Methods (MPI/DPT/UT/RT)", "tid": "MUM-2024-07-2766", "tray": "new", "candidates": [ { "answer_id": "ISM-ELEM-005", "score": 0.43370479345321655, "sibling_score": 0.43370479345321655, "answer_score": null, "sibling_qid": "MUM-2025-08-0393-Q006", "sibling_text": "ism emergency preparedness", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Emergency preparedness (Element 8)", "cross_family": true }, { "answer_id": "OIL-FUEL-TEST-002", "score": 0.4200836718082428, "sibling_score": 0.4200836718082428, "answer_score": null, "sibling_qid": "KOL-2020-07-0418-Q016", "sibling_text": "what is fobas", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "What is FOBAS in fuel-oil analysis?", "cross_family": false }, { "answer_id": "FSE-P01-001", "score": 0.40237176418304443, "sibling_score": 0.40237176418304443, "answer_score": null, "sibling_qid": "KOL-2016-08-0009-Q003", "sibling_text": "what is f s e", "sibling_family": "", "via": "sibling", "answer_title": "What is free surface effect? Explain the basic concept.", "cross_family": false } ] }, { "qid": "MUM-2024-07-2766-Q012", "text": "What all convention are there regarding safety of ship. Than internal came he again asked functional requirements of ISM.", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "MUM-2024-07-2766", "tray": "review", "candidates": [ { "answer_id": "IMO-5PIL-005", "score": 0.6905582547187805, "sibling_score": 0.6905582547187805, "answer_score": 0.5874941766262054, "sibling_qid": "MUM-2026-06-3626-Q008", "sibling_text": "various conventions under imo for safety", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "IMO conventions for ship safety", "cross_family": true }, { "answer_id": "UMS-310-001", "score": 0.6491016745567322, "sibling_score": 0.6491016745567322, "answer_score": null, "sibling_qid": "KOC-2025-02-0534-Q005", "sibling_text": "solas requirembts for ums class ship", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a UMS ship and what does SOLAS require? 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What entry in ORB. (In -what unit lube oil will be mentioned)", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "MUM-2024-08-0198", "tray": "review", "candidates": [ { "answer_id": "OWS-ORB-006", "score": 0.7522600293159485, "sibling_score": 0.7522600293159485, "answer_score": 0.4895358383655548, "sibling_qid": "KOC-2026-03-0844-Q005", "sibling_text": "orb bunkering codes and details where to mention lube oil received in bulk and lube oil received in drums", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "6. Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": false }, { "answer_id": "NBAB-574-002", "score": 0.5921619534492493, "sibling_score": 0.5921619534492493, "answer_score": 0.45592735111713406, "sibling_qid": "KOL-2025-01-1967-Q006", "sibling_text": "burnt lube oil in bunkered heavy oil analysis report how will you know", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Bunker analysis suggests used or burnt lubricating oil — which parameters and tests identify it?", "cross_family": true }, { "answer_id": "CO2-SYS-006", "score": 0.5915842056274414, "sibling_score": 0.5915842056274414, "answer_score": null, "sibling_qid": "KOC-2026-04-0903-Q005", "sibling_text": "in orb entries aux engine sump oil renewal manual transfer in which code and section", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "CO2 bottles, manifolds, pilot cylinders and valve components", "cross_family": false } ] }, { "qid": "MUM-2024-08-1089-Q001", "text": "What kind of ships sailed", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2024-08-1089", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.7423495650291443, "sibling_score": 0.7423495650291443, "answer_score": null, "sibling_qid": "CHE-2026-02-0478-Q004", "sibling_text": "this type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7005447745323181, "sibling_score": 0.7005447745323181, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.4223274007439613, "sibling_score": null, "answer_score": 0.4223274007439613, "sibling_qid": "", "sibling_text": "type a and type b ships how form and cargo set the freeboard", "sibling_family": "", "via": "answer_title", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "MUM-2024-08-1089-Q002", "text": "■Model of the engine", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2024-08-1089", "tray": "new", "candidates": [ { "answer_id": "MIP-264-003", "score": 0.647386372089386, "sibling_score": 0.647386372089386, "answer_score": null, "sibling_qid": "MUM-2026-01-1248-Q002", "sibling_text": "engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Calculate engine power: IHP and BHP, and where each is measured", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.6387043595314026, "sibling_score": 0.6387043595314026, "answer_score": 0.4309850841760635, "sibling_qid": "MUM-2026-06-3390-Q001", "sibling_text": "type of engine model", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false }, { "answer_id": "ENG-NOM-006", "score": 0.6291149258613586, "sibling_score": 0.6291149258613586, "answer_score": null, "sibling_qid": "CHE-2026-05-0583-Q001", "sibling_text": "main engine specification", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Short-form asks: SMC-C, LMC, and ME vs MC quickly", "cross_family": false } ] }, { "qid": "MUM-2024-08-1089-Q005", "text": "■what will be the outlet pressure at the generator fuel pump", "family": "2-Stroke - 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Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "MUM-2024-08-1090-Q004", "text": "GI and GA difference.", "family": "Ship Construction & Stability", "subtopic": "GA Plan / General Arrangement", "tid": "MUM-2024-08-1090", "tray": "new", "candidates": [ { "answer_id": "MEGI-304-002", "score": 0.49624165892601013, "sibling_score": 0.49624165892601013, "answer_score": null, "sibling_qid": "KOC-2025-07-1043-Q002", "sibling_text": "explain gi and ga engines", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "2. 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Generator & Alternator", "via": "sibling", "answer_title": "How does a carbon-pile AVR / regulator work?", "cross_family": false }, { "answer_id": "CO2-CALC-P01-002", "score": 0.5229654312133789, "sibling_score": 0.5229654312133789, "answer_score": null, "sibling_qid": "KOC-2022-08-0088-Q003", "sibling_text": "fixed co2 calculations for e r", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "How is the required CO2 quantity and number of bottles calculated for an engine-room total-flooding system?", "cross_family": false }, { "answer_id": "EECS-003", "score": 0.35765661895275114, "sibling_score": null, "answer_score": 0.35765661895275114, "sibling_qid": "", "sibling_text": "03 explain eexi and cii including how each is calculated eexi attained engine power sfc carbon factor capacity reference speed one time required cii attained annual co2 dwt or gt by type total distance travelled annual", "sibling_family": "", "via": "answer_title", "answer_title": "03. Explain EEXI and CII, including how each is calculated", "cross_family": false } ] }, { "qid": "MUM-2024-08-1452-Q006", "text": "Electrical clutch", "family": "", "subtopic": "", "tid": "MUM-2024-08-1452", "tray": "new", "candidates": [ { "answer_id": "ELEC-SURV-003", "score": 0.616614818572998, "sibling_score": 0.616614818572998, "answer_score": null, "sibling_qid": "MUM-2025-08-1583-Q003", "sibling_text": "main engine documents electrically", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Documents, certificates & trend records", "cross_family": false }, { "answer_id": "WCM-P02-004", "score": 0.6105537414550781, "sibling_score": 0.6105537414550781, "answer_score": 0.45930146872997285, "sibling_qid": "MUM-2026-09-3866-Q008", "sibling_text": "why slipping clutch fitted", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Windlass / mooring-winch motor safeties, switchboard checks and the slipping clutch", "cross_family": false }, { "answer_id": "CRANE-EMBRK-001", "score": 0.6096323728561401, "sibling_score": 0.6096323728561401, "answer_score": null, "sibling_qid": "KOC-2021-11-1155-Q004", "sibling_text": "electromagnetic braking working", "sibling_family": "Electrical - 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Loll among the limits — vanishing stability, lurch, downflooding, contraflexure", "cross_family": false }, { "answer_id": "STAB-GZ-P03-003", "score": 0.5735304951667786, "sibling_score": 0.5735304951667786, "answer_score": null, "sibling_qid": "KOC-2021-07-0016-Q015", "sibling_text": "gz curve draw and show angle of contraflexure down flooding angle angle of vanishing stability", "sibling_family": "", "via": "sibling", "answer_title": "Key points on the GZ curve — max GZ, vanishing stability, downflooding, inflection, instability", "cross_family": false } ] }, { "qid": "MUM-2024-09-0210-Q005", "text": "EGE Fire symptoms and explanation", "family": "Boilers - Operations & Firing", "subtopic": "Uptake Fire", "tid": "MUM-2024-09-0210", "tray": "review", "candidates": [ { "answer_id": "SIH-FIRE-001", "score": 0.7090458273887634, "sibling_score": 0.7090458273887634, "answer_score": 0.43469697833061216, "sibling_qid": "MUM-2026-02-2548-Q002", "sibling_text": "egb fire what is symptoms", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "How will you identify an economiser / EGB fire — indications, symptoms and control?", "cross_family": false }, { "answer_id": "UPT-FIRE-003", "score": 0.5562474131584167, "sibling_score": 0.5562474131584167, "answer_score": null, "sibling_qid": "MUM-2026-07-3738-Q007", "sibling_text": "what are the indications of a soot fire in an exhaust gas economizer ege what immediate actions must be taken by the duty engineer", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Fire in the exhaust gas boiler or economiser — actions and instructions to the duty engineers", "cross_family": false }, { "answer_id": "BLR-BSP-001", "score": 0.5208794474601746, "sibling_score": 0.5208794474601746, "answer_score": null, "sibling_qid": "MUM-2026-05-3196-Q004", "sibling_text": "3e tells you he started the boiler 2 times and both the times the boiler did not start and stopped with vibrations and loud sound may be it s because of panting what checks as 2e you will do", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler panting (combustion pulsation): causes, symptoms, and your actions as 2/E", "cross_family": false } ] }, { "qid": "MUM-2024-09-0210-Q010", "text": "Weather right vs watertight", "family": "SOLAS - Watertight & Closing Appliances", "subtopic": "Watertight / Weathertight Doors", "tid": "MUM-2024-09-0210", "tray": "review", "candidates": [ { "answer_id": "WEATH-545-001", "score": 0.7461816668510437, "sibling_score": 0.7461816668510437, "answer_score": 0.5025258213281631, "sibling_qid": "KOL-2017-12-0131-Q004", "sibling_text": "diff between weather type watertight", "sibling_family": "SOLAS - Watertight & Closing Appliances", "via": "sibling", "answer_title": "What is weathertight, and how does it differ from watertight — meaning, application, location and testing?", "cross_family": false }, { "answer_id": "WTD-002", "score": 0.648446798324585, "sibling_score": 0.648446798324585, "answer_score": null, "sibling_qid": "MUM-2023-03-0093-Q009", "sibling_text": "water tight", "sibling_family": "SOLAS - 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Combustion, Power & Performance", "via": "sibling", "answer_title": "Decode every letter and number: 6S60MC-C and 6S70ME-C", "cross_family": true }, { "answer_id": "AC-VE-001", "score": 0.619905948638916, "sibling_score": 0.619905948638916, "answer_score": null, "sibling_qid": "MUM-2026-01-2904-Q001", "sibling_text": "what type of ship engine power and nomenclature", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Volumetric efficiency: define it, and if it drops how do you improve it (with bumping clearance)?", "cross_family": false } ] }, { "qid": "MUM-2024-09-0962-Q005", "text": "How to improve present rudder efficiency ?", "family": "Shafting, Propeller & Rudder", "subtopic": "Rudder Construction / Pintle", "tid": "MUM-2024-09-0962", "tray": "review", "candidates": [ { "answer_id": "RES-PROP-P03-002", "score": 0.7455440759658813, "sibling_score": 0.7455440759658813, "answer_score": null, "sibling_qid": "MUM-2026-06-3564-Q004", "sibling_text": "rudder efficiency how to improve", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "2. Propulsive coefficients: QPC, hull/propeller/relative-rotative efficiency, wake, slip and propeller curves", "cross_family": false }, { "answer_id": "SPR-STERN-001", "score": 0.725555956363678, "sibling_score": 0.725555956363678, "answer_score": null, "sibling_qid": "MUM-2026-07-3841-Q005", "sibling_text": "how to increase the efficiency of rudder", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Propeller design factors, efficiency, handedness & material", "cross_family": false }, { "answer_id": "SPR-STERN-007", "score": 0.5395184755325317, "sibling_score": 0.5395184755325317, "answer_score": 0.39359549582004544, "sibling_qid": "KOL-2016-08-0010-Q002", "sibling_text": "what is the regulation for rudder area how such a small rudder is able to turn big ship", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Rudder types, area, construction, load support & turning", "cross_family": false } ] }, { "qid": "MUM-2024-09-1091-Q001", "text": "& 6 mumbai attempt: 1st Int: oraon sir Ext: pakrasi sir Type of ship No of ships sailed after class 4 Why so delay in class 2 Type of engine Which attempt Status of other functions? Status of written", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "MUM-2024-09-1091", "tray": "new", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.5909419059753418, "sibling_score": 0.5909419059753418, "answer_score": null, "sibling_qid": "MUM-2026-05-3139-Q001", "sibling_text": "status of oral and written type of ship sailed container nomenclature of main and auxiliary engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.5905227661132812, "sibling_score": 0.5905227661132812, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q001", "sibling_text": "type of ship sailed and engines details", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.5885716080665588, "sibling_score": 0.5885716080665588, "answer_score": null, "sibling_qid": "MUM-2026-03-0866-Q001", "sibling_text": "coc attempt internal sirish sir external vishwanathan iyer sir started with what function you are applying how many ships type of ships you did after class 4 pre sea from where how many written cleared what about other functions", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false } ] }, { "qid": "MUM-2024-09-1092-Q001", "text": "Difference between mc and me?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2024-09-1092", "tray": "review", "candidates": [ { "answer_id": "EGTP-P02-005", "score": 0.6878078579902649, "sibling_score": 0.6878078579902649, "answer_score": 0.3951743111014366, "sibling_qid": "MUM-2026-09-3978-Q001", "sibling_text": "mc mcc me b and me c difference", "sibling_family": "2-Stroke - 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Fuel Injection & Pumps", "subtopic": "ME vs AE Fuel Pump Construction", "tid": "MUM-2024-09-1092", "tray": "review", "candidates": [ { "answer_id": "AEFP-471-006", "score": 0.7270491719245911, "sibling_score": 0.7270491719245911, "answer_score": 0.5912065267562866, "sibling_qid": "MUM-2026-04-2986-Q002", "sibling_text": "difference in fuel pump of me and ae from outside", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "What is the difference between main-engine and auxiliary-engine fuel pumps?", "cross_family": false }, { "answer_id": "FP-OVHL-001", "score": 0.725970447063446, "sibling_score": 0.725970447063446, "answer_score": 0.5163092017173767, "sibling_qid": "MUM-2026-09-3897-Q002", "sibling_text": "main engine and aux engine fuel pump difference when looking from outside", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Aux-engine / Bosch jerk fuel pump — overhaul, checks, boxing up", "cross_family": false }, { "answer_id": "FIS-221-004", "score": 0.6864891648292542, "sibling_score": 0.6864891648292542, "answer_score": null, "sibling_qid": "MUM-2025-05-0273-Q008", "sibling_text": "difference between conventional fuel pump and me engine fuel pump", "sibling_family": "2-Stroke - 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Generator & Alternator", "via": "sibling", "answer_title": "Emergency generator on-load / load-test procedure", "cross_family": false } ] }, { "qid": "MUM-2024-09-1459-Q005", "text": "4b and 6 pass.. 5 repeat", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2024-09-1459", "tray": "new", "candidates": [ { "answer_id": "CHAIN-TENS-A-003", "score": 0.5820279717445374, "sibling_score": 0.5820279717445374, "answer_score": null, "sibling_qid": "MUM-2026-02-2546-Q006", "sibling_text": "6 repeat", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "Chain Tightening Procedure — MC / MC-C / ME", "cross_family": false }, { "answer_id": "CBV-001", "score": 0.5358977317810059, "sibling_score": 0.5358977317810059, "answer_score": null, "sibling_qid": "MUM-2025-12-2517-Q005", "sibling_text": "counter balance valve 4b pass 6 repeat", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "What is a counter-balance valve, why fitted, and why needed even with a directional-control valve?", "cross_family": true }, { "answer_id": "BDI-469-002", "score": 0.4976271092891693, "sibling_score": 0.4976271092891693, "answer_score": null, "sibling_qid": "CHE-2025-08-0187-Q010", "sibling_text": "density correction formula some questions forgot 6 pass 4b repeat", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Density correction — VCF and WCF in bunker calculations", "cross_family": true } ] }, { "qid": "MUM-2024-09-1462-Q003", "text": "Written oral status?", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2024-09-1462", "tray": "review", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.7930355668067932, "sibling_score": 0.7930355668067932, "answer_score": null, "sibling_qid": "MUM-2026-05-3187-Q001", "sibling_text": "status of other orals and written", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.5720146894454956, "sibling_score": 0.5720146894454956, "answer_score": null, "sibling_qid": "KOC-2026-08-2106-Q001", "sibling_text": "status of written oral company type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": true }, { "answer_id": "AE-CRP-005", "score": 0.4577813148498535, "sibling_score": 0.4577813148498535, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q001", "sibling_text": "type of vessel engine make written and oral status", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": true } ] }, { "qid": "MUM-2024-09-2241-Q005", "text": "Egb cleaning preparation as 2e", "family": "Boilers - Construction & Components", "subtopic": "Exhaust Gas Boiler", "tid": "MUM-2024-09-2241", "tray": "new", "candidates": [ { "answer_id": "ECON-EGB-005", "score": 0.5455804467201233, "sibling_score": 0.5455804467201233, "answer_score": 0.3325076937675476, "sibling_qid": "KOC-2025-01-1457-Q010", "sibling_text": "egb cleaning wanted to hear chemical cleaning and chemical used didn t knew", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Cleaning, choking & soot-fire prevention / indication / temperature", "cross_family": false }, { "answer_id": "ISM-2E-A-002", "score": 0.4747186601161957, "sibling_score": 0.4747186601161957, "answer_score": null, "sibling_qid": "KOC-2024-04-0329-Q003", "sibling_text": "ism preperation as 2e", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "How a Second Engineer prepares for an ISM audit or survey", "cross_family": true }, { "answer_id": "ISM-2E-B-001", "score": 0.47468066215515137, "sibling_score": 0.47468066215515137, "answer_score": null, "sibling_qid": "KOC-2023-03-0160-Q006", "sibling_text": "ism preparation as 2 e", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "B1. Preparing for an ISM audit as Second Engineer", "cross_family": true } ] }, { "qid": "MUM-2024-09-2242-Q006", "text": "As 2e what preparation for egb cleaning", "family": "Boilers - Construction & Components", "subtopic": "Exhaust Gas Boiler", "tid": "MUM-2024-09-2242", "tray": "new", "candidates": [ { "answer_id": "ECON-EGB-005", "score": 0.5614005923271179, "sibling_score": 0.5614005923271179, "answer_score": 0.3774041086435318, "sibling_qid": "KOC-2025-01-1457-Q010", "sibling_text": "egb cleaning wanted to hear chemical cleaning and chemical used didn t knew", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Cleaning, choking & soot-fire prevention / indication / temperature", "cross_family": false }, { "answer_id": "BFS-257-009", "score": 0.4731702208518982, "sibling_score": 0.4731702208518982, "answer_score": 0.3784717500209808, "sibling_qid": "KOC-2025-04-1911-Q016", "sibling_text": "how to do egb cleaning while the main engine is running", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "EGB soot-blowing arrangement and cleaning with the main engine running", "cross_family": true }, { "answer_id": "TCM-374-003", "score": 0.46028220653533936, "sibling_score": 0.46028220653533936, "answer_score": null, "sibling_qid": "MUM-2023-06-0103-Q007", "sibling_text": "as 2e tank cleaning is to be carried out what all to be done wanted values of gases how much tlv types explain", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Preparing for tank cleaning and tank entry: gas checks, TLV and precautions", "cross_family": true } ] }, { "qid": "MUM-2024-09-2244-Q001", "text": "3 rd engineer come and informs that Start air valve is red hot what is your action as 2nd engineer", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Starting Air Timing", "tid": "MUM-2024-09-2244", "tray": "review", "candidates": [ { "answer_id": "SAE-388-003", "score": 0.7406994700431824, "sibling_score": 0.7406994700431824, "answer_score": 0.6452418565750122, "sibling_qid": "MUM-2025-11-2876-Q002", "sibling_text": "st air line getting hot your first action as 2e he wanted close valve me air valve and drain line thats it", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "The starting air line is getting hot, or a starting valve is leaking — your action as 2nd Engineer?", "cross_family": true }, { "answer_id": "SAV-003", "score": 0.7343155145645142, "sibling_score": 0.7343155145645142, "answer_score": 0.5948866039514541, "sibling_qid": "MUM-2026-01-1241-Q001", "sibling_text": "starting air valve line hot what actions you will take as a 2e", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Action when a unit starting air valve leaks or the line goes red hot in manoeuvring", "cross_family": true }, { "answer_id": "FHV-003", "score": 0.6289175152778625, "sibling_score": 0.6289175152778625, "answer_score": null, "sibling_qid": "KOC-2026-03-2012-Q005", "sibling_text": "what to do if f o heater steam is full open but f o temp is not going up action required as 2nd eng", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "03. Viscotherm failed or heater cannot raise temperature", "cross_family": false } ] }, { "qid": "MUM-2024-09-2770-Q001", "text": "Attempt -1 4b and 6 Mumbai Mmd Internal - shrivastav External - Vishwanath. Which ship you sailed after 4E - Lpg. NO Questions on lpg. How many written cleared i said this was 1st attempt and results are not out yet , so he got pissed up and said then say nothing cleared yet . Dont knw but was not the day i guess bec the way it started .", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2024-09-2770", "tray": "review", "candidates": [ { "answer_id": "AIR-REF-001", "score": 0.664656400680542, "sibling_score": 0.664656400680542, "answer_score": null, "sibling_qid": "MUM-2022-07-2694-Q005", "sibling_text": "air in the reefer system indication so many x questions and he was not accepting any thing at last said nothing only wankhede sir said padhai kiya karo all d best do t know whether pass fail waiting for the update in dg site", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "1. Indications that air is present in a refrigeration system", "cross_family": true }, { "answer_id": "EXHV-P01-001", "score": 0.6626282334327698, "sibling_score": 0.6626282334327698, "answer_score": null, "sibling_qid": "MUM-2026-03-0866-Q001", "sibling_text": "coc attempt internal sirish sir external vishwanathan iyer sir started with what function you are applying how many ships type of ships you did after class 4 pre sea from where how many written cleared what about other functions", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "ODC-009", "score": 0.6201244592666626, "sibling_score": 0.6201244592666626, "answer_score": null, "sibling_qid": "KOL-2022-09-0678-Q006", "sibling_text": "annex 1 cargo resedue discharge criteria and cross ques i gave all ans of mitra sir suddenly entry mr rao and asking mitra sir what questions he asked then rao sir told oh this is class 4 question ok then he started", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Cargo-area discharge inside a special area — and the Antarctic", "cross_family": true } ] }, { "qid": "MUM-2024-09-2770-Q004", "text": "Cross section of AE conrod .", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "", "tid": "MUM-2024-09-2770", "tray": "new", "candidates": [ { "answer_id": "AECR-651-001", "score": 0.5570088624954224, "sibling_score": 0.5570088624954224, "answer_score": null, "sibling_qid": "MUM-2022-12-1037-Q023", "sibling_text": "checks on con rod of ae", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What checks do you carry out on the connecting rod of an AE / DG — inspection, overhaul checks and the trueness check?", "cross_family": false }, { "answer_id": "AE-CRP-006", "score": 0.5439231395721436, "sibling_score": 0.5439231395721436, "answer_score": 0.280759359896183, "sibling_qid": "MUM-2026-05-3185-Q006", "sibling_text": "cross section of conrod in ae why not circular", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE connecting-rod design — section, serrations, oblique cut, whip loading", "cross_family": true }, { "answer_id": "AEME-DIFF-001", "score": 0.5087039470672607, "sibling_score": 0.5087039470672607, "answer_score": null, "sibling_qid": "MUM-2024-08-1089-Q004", "sibling_text": "cross sectional difference between me and ae con rods", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": true } ] }, { "qid": "MUM-2024-09-2771-Q002", "text": "IMO structure", "family": "Other Conventions", "subtopic": "UNCLOS", "tid": "MUM-2024-09-2771", "tray": "review", "candidates": [ { "answer_id": "IMO-CC-P01-001", "score": 0.7831246256828308, "sibling_score": 0.7831246256828308, "answer_score": 0.3919749081134796, "sibling_qid": "MUM-2026-03-0826-Q006", "sibling_text": "imo structure", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Explain the structure and organs of IMO — Assembly, Council, Committees and Secretariat.", "cross_family": false }, { "answer_id": "IMO-5PIL-001", "score": 0.732419490814209, "sibling_score": 0.732419490814209, "answer_score": 0.3913001656532287, "sibling_qid": "MUM-2025-11-0571-Q001", "sibling_text": "imo structure", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Structure of IMO — the main organs", "cross_family": true }, { "answer_id": "IMO-CODES-P03-002", "score": 0.4318648636341095, "sibling_score": null, "answer_score": 0.4318648636341095, "sibling_qid": "", "sibling_text": "imo overview structure committees certificates imsas ui and carbon strategy", "sibling_family": "", "via": "answer_title", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": false } ] }, { "qid": "MUM-2024-09-2771-Q011", "text": "Type of engine", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2024-09-2771", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.7999672293663025, "sibling_score": 0.7999672293663025, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.7922845482826233, "sibling_score": 0.7922845482826233, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-001", "score": 0.4517221927642822, "sibling_score": null, "answer_score": 0.4517221927642822, "sibling_qid": "", "sibling_text": "1 turbocharger type main engine vs generator engine compressor is centrifugal in both cases only the turbine type differs large slow speed main engine axial flow turbine single stage constant pressure system", "sibling_family": "", "via": "answer_title", "answer_title": "1. Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "MUM-2024-09-2771-Q014", "text": "What type of fuel pump", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Pump Overhaul", "tid": "MUM-2024-09-2771", "tray": "review", "candidates": [ { "answer_id": "FP-OVHL-004", "score": 0.7867838144302368, "sibling_score": 0.7867838144302368, "answer_score": null, "sibling_qid": "MUM-2026-01-1240-Q002", "sibling_text": "fuel pump type", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Overhaul procedure, boxing-up checks, and briefing the junior", "cross_family": false }, { "answer_id": "FP-OVHL-006", "score": 0.7733442187309265, "sibling_score": 0.7733442187309265, "answer_score": 0.5533535659313201, "sibling_qid": "MUM-2026-09-3892-Q006", "sibling_text": "what are the type of fuel pump used", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Main-engine fuel pump — construction, working, VIT, reversing, MC vs ME-C", "cross_family": false }, { "answer_id": "FCL-P02-001", "score": 0.7462809681892395, "sibling_score": 0.7462809681892395, "answer_score": null, "sibling_qid": "KOC-2023-01-1802-Q003", "sibling_text": "main engine fuel pump timing any type", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel pump / injection timing check, setting, and adjustment", "cross_family": false } ] }, { "qid": "MUM-2024-09-2771-Q016", "text": "3E come with the 2 globe valves without opening how to recognise non return and simple screw down", "family": "Workshop & Welding", "subtopic": "Pipe Fabrication", "tid": "MUM-2024-09-2771", "tray": "new", "candidates": [ { "answer_id": "SDNR-SDR-002", "score": 0.6076421737670898, "sibling_score": 0.6076421737670898, "answer_score": 0.5249401092529297, "sibling_qid": "KOC-2024-09-1862-Q004", "sibling_text": "draw screw down non return valve", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Draw and explain a screw-down non-return (SDNR) valve -- construction and working", "cross_family": true }, { "answer_id": "SDNR-SDR-001", "score": 0.6072441935539246, "sibling_score": 0.6072441935539246, "answer_score": 0.5416605293750762, "sibling_qid": "MUM-2025-11-2495-Q005", "sibling_text": "how will u identify sdnr and normal globe valve from outside", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "SDNR versus a plain globe valve -- telling them apart from outside, and the drawbacks of each", "cross_family": true }, { "answer_id": "SDNR-SDR-004", "score": 0.5968704223632812, "sibling_score": 0.5968704223632812, "answer_score": 0.5134888917207717, "sibling_qid": "KOL-2024-09-3711-Q003", "sibling_text": "spring loaded non return globe valve where use in engine room", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Spring-loaded spindleless non-return globe valve -- working principle and engine-room use", "cross_family": true } ] }, { "qid": "MUM-2024-10-0211-Q001", "text": "Types of ship sailed:", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2024-10-0211", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8301514983177185, "sibling_score": 0.8301514983177185, "answer_score": null, "sibling_qid": "CHE-2026-09-3938-Q001", "sibling_text": "types of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7980006337165833, "sibling_score": 0.7980006337165833, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7835177779197693, "sibling_score": 0.7835177779197693, "answer_score": null, "sibling_qid": "CHE-2026-03-0253-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "MUM-2024-10-0211-Q002", "text": "1 Construction of LPG tanker ?", "family": "Cargo Ops - Gas Carriers", "subtopic": "Cargo Tank Construction", "tid": "MUM-2024-10-0211", "tray": "review", "candidates": [ { "answer_id": "GC-TANK-004", "score": 0.7601718902587891, "sibling_score": 0.7601718902587891, "answer_score": 0.49140594601631166, "sibling_qid": "KOL-2025-04-0931-Q007", "sibling_text": "cargo tank construction lpg carrier int", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Gas-carrier cargo tank construction: materials, insulation, fixing and tank safeties", "cross_family": false }, { "answer_id": "LPG-LNG-009", "score": 0.7001700401306152, "sibling_score": 0.7001700401306152, "answer_score": null, "sibling_qid": "MUM-2026-09-3984-Q002", "sibling_text": "construction of an lpg ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Gas-carrier fundamentals and ship-specific traps", "cross_family": true }, { "answer_id": "GC-TANK-001", "score": 0.6882327198982239, "sibling_score": 0.6882327198982239, "answer_score": 0.4831927627325058, "sibling_qid": "MUM-2025-12-0649-Q004", "sibling_text": "lpg construction types", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Main cargo containment and independent tank types on LPG and LNG carriers", "cross_family": false } ] }, { "qid": "MUM-2024-10-0211-Q010", "text": "9 MLC all titles?", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2024-10-0211", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.5492192506790161, "sibling_score": 0.5492192506790161, "answer_score": 0.24388208538293837, "sibling_qid": "KOC-2026-05-2135-Q011", "sibling_text": "mlc titles explain title 1 explain dmlc part 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "MLC-WRH-B-006", "score": 0.4652731120586395, "sibling_score": 0.4652731120586395, "answer_score": null, "sibling_qid": "MUM-2026-06-3645-Q001", "sibling_text": "certificates of mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false }, { "answer_id": "AV6-P05-01", "score": 0.42372727394104004, "sibling_score": 0.42372727394104004, "answer_score": null, "sibling_qid": "KOC-2025-01-0517-Q002", "sibling_text": "seemp part 2 name all 9", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP Part II — IMO DCS plan and contents", "cross_family": true } ] }, { "qid": "MUM-2024-10-0211-Q012", "text": "11 As per SOLAS frequency of enclosed space drills?", "family": "Risk & Safety Management", "subtopic": "Enclosed Space Entry", "tid": "MUM-2024-10-0211", "tray": "new", "candidates": [ { "answer_id": "ESE-P02-005", "score": 0.6032258868217468, "sibling_score": 0.6032258868217468, "answer_score": null, "sibling_qid": "MUM-2026-09-3868-Q005", "sibling_text": "enclosed space drill timing", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "ESE-P02-05. Latest enclosed-space requirements, amendments and the drill", "cross_family": false }, { "answer_id": "SOLAS-CH-004", "score": 0.5854198336601257, "sibling_score": 0.5854198336601257, "answer_score": 0.3859042018651962, "sibling_qid": "MUM-2023-05-0102-Q006", "sibling_text": "frequency of drills enclosed space fire drill boat drill", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "SOLAS Chapter III - drills and life-saving appliances", "cross_family": true }, { "answer_id": "ESE-P01-003", "score": 0.5570021271705627, "sibling_score": 0.5570021271705627, "answer_score": null, "sibling_qid": "MUM-2026-09-3974-Q007", "sibling_text": "enclosed space entry procedure and enclosed space entry drill steps", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "General enclosed-space entry procedure as second engineer", "cross_family": false } ] }, { "qid": "MUM-2024-10-0211-Q013", "text": "As per SOLAS requirement to make entry in drill book regarding enclosed space drill?", "family": "SOLAS - General (HOLD)", "subtopic": "Enclosed Space Entry", "tid": "MUM-2024-10-0211", "tray": "review", "candidates": [ { "answer_id": "ESE-P01-003", "score": 0.6892060041427612, "sibling_score": 0.6892060041427612, "answer_score": 0.4821953415870666, "sibling_qid": "MUM-2026-09-3974-Q007", "sibling_text": "enclosed space entry procedure and enclosed space entry drill steps", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "General enclosed-space entry procedure as second engineer", "cross_family": true }, { "answer_id": "ESE-P02-005", "score": 0.6631495952606201, "sibling_score": 0.6631495952606201, "answer_score": 0.472566556930542, "sibling_qid": "KOC-2025-07-1922-Q003", "sibling_text": "minimum requirement of enclosed space entry drill", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "ESE-P02-05. Latest enclosed-space requirements, amendments and the drill", "cross_family": true }, { "answer_id": "SOLAS-CH-004", "score": 0.611738383769989, "sibling_score": 0.611738383769989, "answer_score": null, "sibling_qid": "MUM-2023-05-0102-Q006", "sibling_text": "frequency of drills enclosed space fire drill boat drill", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "SOLAS Chapter III - drills and life-saving appliances", "cross_family": true } ] }, { "qid": "MUM-2024-10-0212-Q002", "text": "Lifeboat break dynamic test, where to do? How to achieve? Methods? Requirements?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Lifeboat / Davit / LSA", "tid": "MUM-2024-10-0212", "tray": "new", "candidates": [ { "answer_id": "LB-SDT-A-001", "score": 0.6451422572135925, "sibling_score": 0.6451422572135925, "answer_score": 0.4852711498737335, "sibling_qid": "KOC-2022-01-0045-Q009", "sibling_text": "lifeboat static and dynamic test int", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat static and dynamic test — purpose and procedure", "cross_family": false }, { "answer_id": "LB-DAVIT-HRU-006", "score": 0.4373754799365997, "sibling_score": null, "answer_score": 0.4373754799365997, "sibling_qid": "", "sibling_text": "on load and off load lifeboat release mechanism and how to test and check it off load releases only when waterborne with no load on the hooks on load releases with the boat s full weight on the hooks for controlled slipping at the waterline", "sibling_family": "", "via": "answer_title", "answer_title": "On-load and off-load lifeboat release mechanism, and how to test and check it", "cross_family": false }, { "answer_id": "LB-DAVIT-HRU-007", "score": 0.43087022900581357, "sibling_score": null, "answer_score": 0.43087022900581357, "sibling_qid": "", "sibling_text": "lifeboat static and dynamic load test static structure test launching appliance and attachments other than winch brakes factory static proof load 2 2 times mwl lsa 6 1 1 5 winch brake static test proof load 1 5 times mwl lsa 6 1 2 5", "sibling_family": "", "via": "answer_title", "answer_title": "Lifeboat static and dynamic load test", "cross_family": false } ] }, { "qid": "MUM-2024-10-0212-Q004", "text": "ISM elements. I was answering Surveyor stopped in between\nand said ok we will consider him. Then Internal said Ok You are passed this function.", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "MUM-2024-10-0212", "tray": "new", "candidates": [ { "answer_id": "ISM-ELEM-003", "score": 0.5276598334312439, "sibling_score": 0.5276598334312439, "answer_score": 0.29137804210186, "sibling_qid": "KOC-2026-04-0916-Q007", "sibling_text": "elements of ism i answered the chapters he said to tell the elements of ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": false }, { "answer_id": "ISM-2E-C-001", "score": 0.5275819897651672, "sibling_score": 0.5275819897651672, "answer_score": 0.3105995893478393, "sibling_qid": "KOC-2025-01-0495-Q007", "sibling_text": "ism survey as a second engineer documentation part only", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM audit / survey preparation as Second Engineer — beyond the paperwork", "cross_family": false }, { "answer_id": "ISM-2E-B-001", "score": 0.5188621878623962, "sibling_score": 0.5188621878623962, "answer_score": null, "sibling_qid": "KOC-2022-07-0080-Q013", "sibling_text": "ism survey prep as 2 e internal paul", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "B1. Preparing for an ISM audit as Second Engineer", "cross_family": false } ] }, { "qid": "MUM-2024-10-0213-Q002", "text": "Prepare for settling tank Survey ?", "family": "Fuel Oil System", "subtopic": "Settling Tank Survey / Tank Preparation", "tid": "MUM-2024-10-0213", "tray": "new", "candidates": [ { "answer_id": "BTKS-573-001", "score": 0.6081748008728027, "sibling_score": 0.6081748008728027, "answer_score": 0.40631678253412246, "sibling_qid": "MUM-2025-04-0243-Q003", "sibling_text": "hfo bunter tank survey preparations", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "How will you prepare a fuel-oil / bunker tank for survey, inspection or hot work?", "cross_family": true }, { "answer_id": "FO-SVCSET-001", "score": 0.572743833065033, "sibling_score": 0.572743833065033, "answer_score": null, "sibling_qid": "KOL-2021-11-3476-Q004", "sibling_text": "settling tank function", "sibling_family": "Fuel Oil System", "via": "sibling", "answer_title": "What is the function of a fuel oil settling tank?", "cross_family": false }, { "answer_id": "LLC-SURV-P02-001", "score": 0.5567167401313782, "sibling_score": 0.5567167401313782, "answer_score": null, "sibling_qid": "KOL-2019-12-0357-Q003", "sibling_text": "ll survey preparation", "sibling_family": "", "via": "sibling", "answer_title": "1. Load line survey preparation: readiness, weather-tight checks and attendance", "cross_family": false } ] }, { "qid": "MUM-2024-10-0214-Q001", "text": "Type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2024-10-0214", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8367276191711426, "sibling_score": 0.8367276191711426, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8018048405647278, "sibling_score": 0.8018048405647278, "answer_score": 0.5473710656166076, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8003591299057007, "sibling_score": 0.8003591299057007, "answer_score": 0.5217903822660446, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2024-10-0214-Q002", "text": "Definition of bulk carrier as per solas", "family": "SOLAS - General (HOLD)", "subtopic": "Solas Chapter 12 - Bulk", "tid": "MUM-2024-10-0214", "tray": "review", "candidates": [ { "answer_id": "SOLAS12-BC-A-001", "score": 0.7942000031471252, "sibling_score": 0.7942000031471252, "answer_score": 0.6084858208894729, "sibling_qid": "MUM-2026-06-3626-Q002", "sibling_text": "define bulk carrier", "sibling_family": "SOLAS - General (HOLD)", "via": "sibling", "answer_title": "SOLAS definition and scope of a bulk carrier", "cross_family": false }, { "answer_id": "SOLAS-XII-BC-002", "score": 0.7415951490402222, "sibling_score": 0.7415951490402222, "answer_score": null, "sibling_qid": "KOC-2026-09-2208-Q005", "sibling_text": "bulk carrier as per solas", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Explain SOLAS Chapter XII — the additional safety measures for bulk carriers", "cross_family": true }, { "answer_id": "BC-CODES-342-002", "score": 0.5377519577741623, "sibling_score": null, "answer_score": 0.5377519577741623, "sibling_qid": "", "sibling_text": "the bulk carrier cargo codes imsbc grain and blu imsbc code solid bulk cargoes except grain mandatory solas chapter vi res msc 268 85 see the imsbc card international grain code grain in bulk mandatory solas chapter vi part c reg vi 9 res msc 23 59 stability criteria document of authorization see the grain code card", "sibling_family": "", "via": "answer_title", "answer_title": "The bulk-carrier cargo codes — IMSBC, Grain and BLU", "cross_family": false } ] }, { "qid": "MUM-2024-10-0215-Q001", "text": "Type of ship sailed on", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2024-10-0215", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8368828892707825, "sibling_score": 0.8368828892707825, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.836000919342041, "sibling_score": 0.836000919342041, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.5167184144258499, "sibling_score": null, "answer_score": 0.5167184144258499, "sibling_qid": "", "sibling_text": "type a and type b ships how form and cargo set the freeboard", "sibling_family": "", "via": "answer_title", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "MUM-2024-10-0216-Q001", "text": "Types of ship you have done,", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2024-10-0216", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.7791973948478699, "sibling_score": 0.7791973948478699, "answer_score": null, "sibling_qid": "MUM-2026-02-1280-Q001", "sibling_text": "type of ship done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7332612872123718, "sibling_score": 0.7332612872123718, "answer_score": 0.47199927270412445, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.7290390133857727, "sibling_score": 0.7290390133857727, "answer_score": null, "sibling_qid": "CHE-2026-09-3938-Q001", "sibling_text": "types of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false } ] }, { "qid": "MUM-2024-10-0216-Q002", "text": "Number of ships you have done after class 4,", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2024-10-0216", "tray": "new", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.5796560645103455, "sibling_score": 0.5796560645103455, "answer_score": null, "sibling_qid": "MUM-2026-03-2588-Q001", "sibling_text": "which ships u have done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLC-P05-001", "score": 0.5739820003509521, "sibling_score": 0.5739820003509521, "answer_score": null, "sibling_qid": "KOL-2018-07-0201-Q001", "sibling_text": "how many ships after class 4 grt of them deck line how is it drawn wanted to know the location and distance", "sibling_family": "", "via": "sibling", "answer_title": "Freeboard, deck line, Plimsoll mark, assignment and scantling draft", "cross_family": false }, { "answer_id": "CN-576-001", "score": 0.5304356813430786, "sibling_score": 0.5304356813430786, "answer_score": null, "sibling_qid": "MUM-2026-04-0919-Q005", "sibling_text": "class notation of your ship", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What are the class notations of the vessel?", "cross_family": true } ] }, { "qid": "MUM-2024-10-0216-Q004", "text": "III code,", "family": "Other Conventions", "subtopic": "III Code", "tid": "MUM-2024-10-0216", "tray": "new", "candidates": [ { "answer_id": "IGC-IGF-002", "score": 0.6053063273429871, "sibling_score": 0.6053063273429871, "answer_score": null, "sibling_qid": "KOC-2024-02-0296-Q005", "sibling_text": "igf code", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "IGF Code — scope, ships and fuels it applies to", "cross_family": false }, { "answer_id": "IGC-IGF-001", "score": 0.5952046513557434, "sibling_score": 0.5952046513557434, "answer_score": null, "sibling_qid": "KOL-2025-11-1120-Q003", "sibling_text": "igc code igf code", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "IGC Code vs IGF Code — what they are and the difference", "cross_family": false }, { "answer_id": "IGC-GAS-002", "score": 0.5673080086708069, "sibling_score": 0.5673080086708069, "answer_score": null, "sibling_qid": "KOL-2022-05-0629-Q003", "sibling_text": "igc code", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "The IGC Code — status, scope, which ships it governs, chapter structure", "cross_family": true } ] }, { "qid": "MUM-2024-10-0216-Q007", "text": "HSSC,", "family": "Surveys - Statutory", "subtopic": "HSSC", "tid": "MUM-2024-10-0216", "tray": "review", "candidates": [ { "answer_id": "HSSC-001", "score": 0.7350603938102722, "sibling_score": 0.7350603938102722, "answer_score": 0.35751432925462723, "sibling_qid": "MUM-2026-09-3989-Q009", "sibling_text": "hssc", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is HSSC — the Harmonised System of Survey and Certification? Explain the harmonised survey system and programme, and what the \"HSSC code\" is.", "cross_family": false }, { "answer_id": "OPRC-SALV-004", "score": 0.732672393321991, "sibling_score": 0.732672393321991, "answer_score": 0.2892680406570434, "sibling_qid": "MUM-2026-09-3965-Q002", "sibling_text": "hssc", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "HNS — two different conventions, and the OPRC connection", "cross_family": false }, { "answer_id": "HSSC-002", "score": 0.5077799558639526, "sibling_score": 0.5077799558639526, "answer_score": 0.27821063399314877, "sibling_qid": "KOC-2026-04-0916-Q010", "sibling_text": "harmonised system of survey and certification which surveys are not included in hssc", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What are the initial, annual, periodical and intermediate surveys under HSSC, which surveys are NOT included, and which conventions does the harmonised system cover?", "cross_family": false } ] }, { "qid": "MUM-2024-10-0216-Q008", "text": "STCW main difference between Manila and 95,", "family": "Other Conventions", "subtopic": "STCW / Manila Amendments", "tid": "MUM-2024-10-0216", "tray": "new", "candidates": [ { "answer_id": "STCW-MAN-010", "score": 0.523205041885376, "sibling_score": 0.523205041885376, "answer_score": 0.4463459372520447, "sibling_qid": "KOL-2020-01-0379-Q006", "sibling_text": "why stcw came what is code what amendments have taken place in manila amendment", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What are the STCW 2010 Manila amendments, and what changed compared with STCW 1995?", "cross_family": false }, { "answer_id": "STCW-MAN-011", "score": 0.48839783668518066, "sibling_score": 0.48839783668518066, "answer_score": null, "sibling_qid": "KOL-2026-03-1198-Q003", "sibling_text": "white list of imo and certificate under stcw", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is the White List under the STCW Convention?", "cross_family": false }, { "answer_id": "STCW-MAN-008", "score": 0.4860878884792328, "sibling_score": 0.4860878884792328, "answer_score": null, "sibling_qid": "KOC-2024-11-0472-Q007", "sibling_text": "stcw ch v he needs training requirements other than tankers and passenger ships", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Explain STCW Chapter V and its special training requirements — including which chapter applies to a gas tanker, and what is required other than for tankers and passenger ships.", "cross_family": false } ] }, { "qid": "MUM-2024-10-0216-Q011", "text": "Torsion box,", "family": "SOLAS", "subtopic": "Double Bottom / Torsion Box", "tid": "MUM-2024-10-0216", "tray": "review", "candidates": [ { "answer_id": "DB-TORBOX-B-003", "score": 0.7157624363899231, "sibling_score": 0.7157624363899231, "answer_score": 0.4750941306352615, "sibling_qid": "MUM-2026-05-3222-Q002", "sibling_text": "torsion box", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "What is a torsion box — definition and construction", "cross_family": false }, { "answer_id": "DBTB-A-004", "score": 0.6865665912628174, "sibling_score": 0.6865665912628174, "answer_score": 0.45162962973117826, "sibling_qid": "CHE-2026-05-0590-Q002", "sibling_text": "draw torsion box", "sibling_family": "Ship Construction", "via": "sibling", "answer_title": "Torsion box: construction and arrangement in a container ship", "cross_family": true }, { "answer_id": "DB-TORBOX-B-001", "score": 0.4316496431827545, "sibling_score": null, "answer_score": 0.4316496431827545, "sibling_qid": "", "sibling_text": "torsion box purpose location and why container ships closed box section cell at each deck side strength deck on top sheer strake side shell outboard inner longitudinal bulkhead inboard second deck platform closing it below purpose restore the torsional rigidity lost to the large deck openings resist hull twisting and warping in oblique quartering seas", "sibling_family": "", "via": "answer_title", "answer_title": "Torsion box — purpose, location, and why container ships", "cross_family": false } ] }, { "qid": "MUM-2024-10-0217-Q004", "text": "Free surface effect", "family": "Ship Construction & Stability", "subtopic": "Static / Dynamic Stability/damage stability", "tid": "MUM-2024-10-0217", "tray": "review", "candidates": [ { "answer_id": "FSE-P03-003", "score": 0.7662714123725891, "sibling_score": 0.7662714123725891, "answer_score": 0.4187038391828537, "sibling_qid": "KOC-2026-04-0900-Q004", "sibling_text": "explain free surface effect calculation", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "3. Formula, factors and calculation", "cross_family": false }, { "answer_id": "FSE-P01-001", "score": 0.7610568404197693, "sibling_score": 0.7610568404197693, "answer_score": 0.4906503438949585, "sibling_qid": "CHE-2026-05-0565-Q004", "sibling_text": "explain free surface effect", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "What is free surface effect? Explain the basic concept.", "cross_family": false }, { "answer_id": "FSE-P02-001", "score": 0.5355286210775375, "sibling_score": null, "answer_score": 0.5355286210775375, "sibling_qid": "", "sibling_text": "reducing and correcting free surface effect in practice fse is a virtual rise of g i e a virtual loss of gm m is fixed by the waterplane and does not move free surface correction rise of g i tank w in metres the liquid density is in it not just geometry", "sibling_family": "", "via": "answer_title", "answer_title": "Reducing and correcting free surface effect in practice", "cross_family": false } ] }, { "qid": "MUM-2024-10-0963-Q006", "text": "Both boiler circulating pumps out of order , explain your actions 6 . Explain working of starting air valve of Me and explain how to overhaul it and checks after overhaul .", "family": "Boilers - Operations & Firing", "subtopic": "Circulating Pump", "tid": "MUM-2024-10-0963", "tray": "review", "candidates": [ { "answer_id": "SAV-003", "score": 0.6883265376091003, "sibling_score": 0.6883265376091003, "answer_score": 0.5396043330430984, "sibling_qid": "MUM-2024-03-2760-Q002", "sibling_text": "you find one starting air line of unit red hot actions wanted to listen closing of starting air valve from air bottle then other actions", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Action when a unit starting air valve leaks or the line goes red hot in manoeuvring", "cross_family": true }, { "answer_id": "BLR-BSP-001", "score": 0.6678832769393921, "sibling_score": 0.6678832769393921, "answer_score": null, "sibling_qid": "MUM-2025-11-2876-Q003", "sibling_text": "3e starting boiler and mis firing ur action as 2e boiler panting situation explained check damper if its malfunctioned", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler panting (combustion pulsation): causes, symptoms, and your actions as 2/E", "cross_family": false }, { "answer_id": "BLR-OPS-004", "score": 0.6663587689399719, "sibling_score": 0.6663587689399719, "answer_score": null, "sibling_qid": "KOL-2019-03-3220-Q004", "sibling_text": "boiler starting procedure from laid up condition", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Explain the procedure for starting a boiler from a laid-up condition.", "cross_family": false } ] }, { "qid": "MUM-2024-10-0964-Q002", "text": "Strain Hardening", "family": "Materials & Metallurgy", "subtopic": "Shot Peening / Work Hardening / Forging / Spark Erosion", "tid": "MUM-2024-10-0964", "tray": "new", "candidates": [ { "answer_id": "HT-TCS-B-003", "score": 0.6332342624664307, "sibling_score": 0.6332342624664307, "answer_score": 0.44385377764701844, "sibling_qid": "MUM-2024-11-2250-Q001", "sibling_text": "material hardening process", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Hardening — purpose, suitable materials and components", "cross_family": true }, { "answer_id": "HT-A-001", "score": 0.6081359386444092, "sibling_score": 0.6081359386444092, "answer_score": null, "sibling_qid": "CHE-2026-05-0569-Q006", "sibling_text": "hardening heat treatment process", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Heat treatment: what it is, the main methods, and why it is done", "cross_family": true }, { "answer_id": "HT-TCS-B-001", "score": 0.598022997379303, "sibling_score": 0.598022997379303, "answer_score": null, "sibling_qid": "MUM-2026-05-3246-Q009", "sibling_text": "hardening and tempering", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Tempering — purpose, classes and where it is used on board", "cross_family": true } ] }, { "qid": "MUM-2024-10-1463-Q001", "text": "Alternator safety", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator Protection", "tid": "MUM-2024-10-1463", "tray": "review", "candidates": [ { "answer_id": "ALT-GEN-P01-001", "score": 0.7951489686965942, "sibling_score": 0.7951489686965942, "answer_score": 0.5258773922920227, "sibling_qid": "MUM-2026-09-3990-Q001", "sibling_text": "alternator safety", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Alternator/generator safeties and protection trips", "cross_family": false }, { "answer_id": "ALT-MTN-B-001", "score": 0.5349849462509155, "sibling_score": null, "answer_score": 0.5349849462509155, "sibling_qid": "", "sibling_text": "routine onboard alternator maintenance checks clean air path dry low pressure air blow through cooler and filters clear keep winding temperature in band insulation resistance to earth on a megger trended over time investigate a falling trend do not wait for the alarm", "sibling_family": "", "via": "answer_title", "answer_title": "Routine onboard alternator maintenance checks", "cross_family": false }, { "answer_id": "ALT-MAINT-A-001", "score": 0.5312209695577621, "sibling_score": null, "answer_score": 0.5312209695577621, "sibling_qid": "", "sibling_text": "routine maintenance care of a ship s alternator make safe first permit to work isolate rack out and lock off the breaker immobilise the prime mover the set is engine driven a blackout dead bus auto start can crank it prove dead discharge the windings the space heater supply is separate it stays live after the alternator breaker is open isolate it independently before touching the windings", "sibling_family": "", "via": "answer_title", "answer_title": "Routine maintenance & care of a ship’s alternator", "cross_family": false } ] }, { "qid": "MUM-2024-10-1464-Q001", "text": "Generator not developing voltage", "family": "Electrical - Generator & Alternator", "subtopic": "Voltage Not Coming", "tid": "MUM-2024-10-1464", "tray": "review", "candidates": [ { "answer_id": "NO-VOLT-001", "score": 0.8586115837097168, "sibling_score": 0.8586115837097168, "answer_score": 0.553959760069847, "sibling_qid": "MUM-2026-06-3465-Q003", "sibling_text": "generator not developing voltage", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "The 3/E reports the generator has started but no voltage is showing — reasons, and your actions as 2/E", "cross_family": false }, { "answer_id": "RES-MAG-002", "score": 0.8172047734260559, "sibling_score": 0.8172047734260559, "answer_score": 0.602009043097496, "sibling_qid": "KOL-2021-07-2455-Q005", "sibling_text": "generator started after many days and voltage not developing reasons", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Generator started but no voltage developing — reasons, and your action as Second Engineer", "cross_family": false }, { "answer_id": "RES-MAG-003", "score": 0.5602243065834045, "sibling_score": null, "answer_score": 0.5602243065834045, "sibling_qid": "", "sibling_text": "after 2 months in drydock or laid up generator started no voltage why two separate failure paths after a lay up damp insulation and decayed or lost remanence prove insulation first megger before you flash applying normal uncontrolled excitation to damp windings is how a drying job becomes a rewind", "sibling_family": "", "via": "answer_title", "answer_title": "After 2 months in drydock or laid up — generator started, no voltage. Why?", "cross_family": false } ] }, { "qid": "MUM-2024-10-1464-Q002", "text": "One generator excitation loss while running in parallel", "family": "Electrical - Generator & Alternator", "subtopic": "Motoring Effect", "tid": "MUM-2024-10-1464", "tray": "new", "candidates": [ { "answer_id": "SYNC-C-001", "score": 0.597984790802002, "sibling_score": 0.597984790802002, "answer_score": null, "sibling_qid": "KOL-2022-08-2599-Q001", "sibling_text": "generator paralleling", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Paralleling generators — procedure, conditions and practical checks", "cross_family": false }, { "answer_id": "LS-IMB-A-001", "score": 0.5862477421760559, "sibling_score": 0.5862477421760559, "answer_score": 0.33799345940351483, "sibling_qid": "KOL-2025-11-2905-Q002", "sibling_text": "two generators running in parallel but different kw reason", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Two paralleled generators sharing unequal load — cause and correction", "cross_family": false }, { "answer_id": "AVR-EXC-G-003", "score": 0.5809908509254456, "sibling_score": 0.5809908509254456, "answer_score": 0.39297937154769896, "sibling_qid": "MUM-2026-09-3866-Q011", "sibling_text": "two gen running in parallel one lost excitation what will happen", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Loss or reduction of excitation: effect and action", "cross_family": false } ] }, { "qid": "MUM-2024-10-1464-Q003", "text": "Vacuum diode", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Zener / Diode / Rectifier", "tid": "MUM-2024-10-1464", "tray": "new", "candidates": [ { "answer_id": "EPC-P02-01", "score": 0.6382430195808411, "sibling_score": 0.6382430195808411, "answer_score": null, "sibling_qid": "MUM-2025-08-1571-Q002", "sibling_text": "voltage diode", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a zener diode? Draw its symbol, explain its working principle, and draw and explain its characteristic curve including the zener (breakdown) voltage.", "cross_family": false }, { "answer_id": "EPC-P01-01", "score": 0.6270860433578491, "sibling_score": 0.6270860433578491, "answer_score": 0.4167561143636703, "sibling_qid": "MUM-2026-03-2035-Q009", "sibling_text": "diode", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a diode? Symbol, forward and reverse bias, and the characteristic curve", "cross_family": false }, { "answer_id": "EPC-P01-02", "score": 0.6105933785438538, "sibling_score": 0.6105933785438538, "answer_score": 0.43977426588535307, "sibling_qid": "KOC-2026-02-1715-Q004", "sibling_text": "type of diodes", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Types of diodes, and where diodes are used on board", "cross_family": false } ] }, { "qid": "MUM-2024-10-1464-Q007", "text": "Inductance", "family": "Electrical - Distribution & MSB", "subtopic": "", "tid": "MUM-2024-10-1464", "tray": "review", "candidates": [ { "answer_id": "TC-A-008", "score": 0.7233167886734009, "sibling_score": 0.7233167886734009, "answer_score": 0.5366045206785202, "sibling_qid": "KOC-2024-11-1877-Q005", "sibling_text": "what is inductance", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "The inductor and the filter choke — and inductance in an HV system", "cross_family": true }, { "answer_id": "TC-A-010", "score": 0.6642590761184692, "sibling_score": 0.6642590761184692, "answer_score": null, "sibling_qid": "CHE-2026-09-3911-Q009", "sibling_text": "what is inductance and reactance", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Impedance and the RC circuit — finding Xc and XL", "cross_family": true }, { "answer_id": "FAR-EMI-003", "score": 0.6543209552764893, "sibling_score": 0.6543209552764893, "answer_score": 0.47213221490383145, "sibling_qid": "KOL-2017-08-2147-Q002", "sibling_text": "self inductance and mutual inductance diff by givin examples omboard", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Self-induction versus mutual induction — with shipboard examples", "cross_family": true } ] }, { "qid": "MUM-2024-10-1465-Q002", "text": "You have brushless excitation system it's components.", "family": "Electrical - Generator & Alternator", "subtopic": "Brushless Alternator", "tid": "MUM-2024-10-1465", "tray": "review", "candidates": [ { "answer_id": "BRUSHALT-A-001", "score": 0.8244184851646423, "sibling_score": 0.8244184851646423, "answer_score": 0.5868041843175887, "sibling_qid": "MUM-2026-09-3931-Q003", "sibling_text": "brushless excitation system location of each part and construction", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01 · Working principle of the brushless alternator / brushless excitation systemHigh", "cross_family": false }, { "answer_id": "BL-ALT-C-003", "score": 0.770237147808075, "sibling_score": 0.770237147808075, "answer_score": 0.5425150781869889, "sibling_qid": "KOL-2025-03-2774-Q001", "sibling_text": "types of excitation system how you will say you hv brushless excitation system onboard", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Compare excitation types: brushed / static / brushless", "cross_family": false }, { "answer_id": "AVR-EXC-G-002", "score": 0.5897496849298477, "sibling_score": null, "answer_score": 0.5897496849298477, "sibling_qid": "", "sibling_text": "brushless excitation how dc reaches the rotor avr senses terminal voltage and sets the dc to the stationary exciter field the exciter is inverted field stationary armature rotating on the shaft", "sibling_family": "", "via": "answer_title", "answer_title": "Brushless excitation: how DC reaches the rotor", "cross_family": false } ] }, { "qid": "MUM-2024-10-1465-Q003", "text": "Motor in hand held grinders", "family": "Electrical - Motors & Starters", "subtopic": "PORTABLE DEVICES", "tid": "MUM-2024-10-1465", "tray": "new", "candidates": [ { "answer_id": "TG-MOTOR-001", "score": 0.642095148563385, "sibling_score": 0.642095148563385, "answer_score": 0.48115044832229614, "sibling_qid": "MUM-2026-07-3697-Q001", "sibling_text": "turning gear motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What type of motor is used for the turning gear, and what type of rotor does it have?", "cross_family": false }, { "answer_id": "ROT-STAT-B-003", "score": 0.6269885301589966, "sibling_score": 0.6269885301589966, "answer_score": null, "sibling_qid": "MUM-2022-07-1332-Q005", "sibling_text": "wound motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "The wound / slip-ring rotor — construction, use and slip-ring problems", "cross_family": false }, { "answer_id": "ROT-STAT-A-001", "score": 0.6170050501823425, "sibling_score": 0.6170050501823425, "answer_score": null, "sibling_qid": "KOC-2024-02-1332-Q002", "sibling_text": "squirrel cage motor", "sibling_family": "Electrical - 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Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "MUM-2024-11-0966-Q002", "text": "Which attempt", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2024-11-0966", "tray": "new", "candidates": [ { "answer_id": "IMO-CODES-P03-002", "score": 0.48044800758361816, "sibling_score": 0.48044800758361816, "answer_score": null, "sibling_qid": "MUM-2026-03-0815-Q003", "sibling_text": "which function", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": false }, { "answer_id": "ANG-ENC-005", "score": 0.44002804160118103, "sibling_score": 0.44002804160118103, "answer_score": null, "sibling_qid": "CHE-2025-08-0514-Q001", "sibling_text": "if one fail what will happen", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Encoder failure: redundancy, offset, backup and emergency starting", "cross_family": true }, { "answer_id": "IGAT-583-004", "score": 0.43519240617752075, "sibling_score": 0.43519240617752075, "answer_score": null, "sibling_qid": "KOC-2021-07-0013-Q006", "sibling_text": "ig fail what action int", "sibling_family": "Cargo Ops - 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Its effect on the ship, which stroke creates more power, and two engines at the same rpm", "cross_family": true }, { "answer_id": "CTRL-TL-004", "score": 0.2656501546502113, "sibling_score": null, "answer_score": 0.2656501546502113, "sibling_qid": "", "sibling_text": "ratio control and where it is used on board ratio control hold flow b as a fixed multiple of measured flow a wild flow measured but not controlled controlled flow manipulated to keep the ratio", "sibling_family": "", "via": "answer_title", "answer_title": "Ratio control and where it is used on board", "cross_family": false } ] }, { "qid": "MUM-2024-11-1469-Q004", "text": "Flashing of Generator", "family": "Electrical - Generator & Alternator", "subtopic": "Residual Magnetism / Flashing", "tid": "MUM-2024-11-1469", "tray": "review", "candidates": [ { "answer_id": "RES-MAG-004", "score": 0.7669176459312439, "sibling_score": 0.7669176459312439, "answer_score": 0.3237367510795593, "sibling_qid": "MUM-2026-06-3484-Q009", "sibling_text": "flashing of generator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Field flashing — the procedure, where the battery connects, which terminal, and the precautions", "cross_family": false }, { "answer_id": "SCR-306-A-001", "score": 0.6021792888641357, "sibling_score": 0.6021792888641357, "answer_score": null, "sibling_qid": "MUM-2026-01-1912-Q002", "sibling_text": "how to flash a generator", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What an SCR is and how it works", "cross_family": true }, { "answer_id": "RES-MAG-002", "score": 0.5841608643531799, "sibling_score": 0.5841608643531799, "answer_score": 0.3223022520542145, "sibling_qid": "MUM-2025-08-1584-Q001S5", "sibling_text": "gen not producing voltage flashing up of gen", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Generator started but no voltage developing — reasons, and your action as Second Engineer", "cross_family": false } ] }, { "qid": "MUM-2024-11-1473-Q006", "text": "power factor on last ship? 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"answer_id": "MATPROP-A-001", "score": 0.6509125828742981, "sibling_score": 0.6509125828742981, "answer_score": null, "sibling_qid": "KOL-2019-01-1439-Q002", "sibling_text": "carbon in steel cross questions", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Steel types and composition", "cross_family": false }, { "answer_id": "CYL-LINER-P04-006", "score": 0.610235869884491, "sibling_score": 0.610235869884491, "answer_score": 0.3824441075325012, "sibling_qid": "MUM-2026-05-3002-Q004", "sibling_text": "draw iron carbon diagram explain where we use pearlite cylinder liner which material", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Material & manufacturing", "cross_family": true } ] }, { "qid": "MUM-2024-11-2251-Q001", "text": "Status of exams?", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2024-11-2251", "tray": "review", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.7118375897407532, "sibling_score": 0.7118375897407532, "answer_score": null, "sibling_qid": "MUM-2026-01-1252-Q001", "sibling_text": "status of results oral written exam", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.6010823845863342, "sibling_score": 0.6010823845863342, "answer_score": null, "sibling_qid": "CHE-2026-01-0101-Q001", "sibling_text": "types of ship done and exam status", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": true }, { "answer_id": "DUS-P1-02", "score": 0.5552152395248413, "sibling_score": 0.5552152395248413, "answer_score": null, "sibling_qid": "KOL-2025-08-3851-Q006", "sibling_text": "drydock plans rudder checks cross questions what about other 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"type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7686598300933838, "sibling_score": 0.7686598300933838, "answer_score": 0.5074887096881866, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "MUM-2024-11-2251-Q005", "text": "Tell me specific list?", "family": "", "subtopic": "", "tid": "MUM-2024-11-2251", "tray": "new", "candidates": [ { "answer_id": "HKC-IHM-B-001", "score": 0.5384416580200195, "sibling_score": 0.5384416580200195, "answer_score": null, "sibling_qid": "MUM-2025-12-0627-Q006", "sibling_text": "ihm lists", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is the IHM — its parts, categories and contents?", "cross_family": false }, { "answer_id": "ISM-ELEM-003", "score": 0.4619865417480469, "sibling_score": 0.4619865417480469, "answer_score": null, "sibling_qid": "MUM-2026-09-3889-Q004", "sibling_text": "muster list which chapter and it s content", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": false }, { "answer_id": "IMO-CODES-P03-001", "score": 0.45734018087387085, "sibling_score": 0.45734018087387085, "answer_score": null, "sibling_qid": "KOC-2025-12-0770-Q009", "sibling_text": "list out various codes", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Important IMO conventions and codes: parent links", "cross_family": false } ] }, { "qid": "MUM-2024-11-2251-Q007", "text": "Rudder breached, how to rectify, checks?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "MUM-2024-11-2251", "tray": "new", 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"hele shaw pump", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Hele-Shaw pump: construction and working — draw and explain", "cross_family": false }, { "answer_id": "HSAP-583-A-005", "score": 0.5972407460212708, "sibling_score": 0.5972407460212708, "answer_score": null, "sibling_qid": "KOC-2023-03-1808-Q003", "sibling_text": "heleshaw pump o h", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Hele-Shaw pump overhaul", "cross_family": false }, { "answer_id": "HSAP-B-004", "score": 0.5703165531158447, "sibling_score": 0.5703165531158447, "answer_score": null, "sibling_qid": "KOC-2024-09-1863-Q006", "sibling_text": "heleshaw pump overhaul", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Hele-Shaw pump overhaul — procedure, control rods, tail and guide rods, spindle nut, materials", "cross_family": false } ] }, { "qid": "MUM-2024-11-2255-Q005", "text": "5 Zero setting of fuel pump of 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"sibling_family": "", "via": "answer_title", "answer_title": "What is the zero-fuel / zero-delivery setting of a fuel pump, and how is it done?", "cross_family": false }, { "answer_id": "AEFP-471-008", "score": 0.43798476457595825, "sibling_score": null, "answer_score": 0.43798476457595825, "sibling_qid": "", "sibling_text": "how do you purge the ae fuel pump to injector hp pipe after an injector routine or overhaul why air in the hp pipe is compressible plunger displacement is absorbed below needle opening pressure the unit cannot fire prime the lp side first booster priming pump on pump body and filters vented until bubble free", "sibling_family": "", "via": "answer_title", "answer_title": "How do you purge the AE fuel-pump-to-injector HP pipe after an injector routine or overhaul?", "cross_family": false } ] }, { "qid": "MUM-2024-11-2256-Q002", "text": "Rudder inspection in Dry Dock ,checks carried out.", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / 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"04Where refrigerant is charged, and purging the charging line without releasing refrigerant", "cross_family": false } ] }, { "qid": "MUM-2024-11-2259-Q003", "text": "Risk assessment comes under which code and your company risk assessment form main labels", "family": "Risk & Safety Management", "subtopic": "Risk Assessment / Management", "tid": "MUM-2024-11-2259", "tray": "review", "candidates": [ { "answer_id": "RA-MGMT-A-001", "score": 0.7260517477989197, "sibling_score": 0.7260517477989197, "answer_score": 0.4861023426055908, "sibling_qid": "MUM-2026-07-3737-Q014", "sibling_text": "risk management explain risk assessment and tell me details about your co risk assessment form", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "What is risk, what is hazard, and what is risk assessment?", "cross_family": false }, { "answer_id": "RISK-RA-C-001", "score": 0.7147384285926819, "sibling_score": 0.7147384285926819, "answer_score": 0.48082913756370543, 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General & Compliance", "via": "sibling", "answer_title": "Bunker tank overflow alarm — response, and recovering oil with the Wilden pump", "cross_family": true }, { "answer_id": "FIRE-P02-03", "score": 0.5735267996788025, "sibling_score": 0.5735267996788025, "answer_score": 0.45410045981407166, "sibling_qid": "KOL-2017-01-0060-Q003", "sibling_text": "hyper mist how its activated saftey measures to give indication of low level in fw tank apart form low level float alarm", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist — low water level or empty FW tank contingency", "cross_family": true }, { "answer_id": "LWL-005", "score": 0.540457010269165, "sibling_score": 0.540457010269165, "answer_score": null, "sibling_qid": "CHE-2026-03-0493-Q002", "sibling_text": "boiler low water level what are actions", "sibling_family": "Boilers - Feed Water & Water Treatment", "via": "sibling", "answer_title": "How do you test the boiler low-water alarm and the low-low level trip? How do you test high level, and why is there a time delay in the alarm?", "cross_family": true } ] }, { "qid": "MUM-2024-12-2264-Q003S2", "text": "T/C Efficiency ?", "family": "", "subtopic": "", "tid": "MUM-2024-12-2264", "tray": "new", "candidates": [ { "answer_id": "TURBO-CS-P02-007", "score": 0.48298847675323486, "sibling_score": 0.48298847675323486, "answer_score": null, "sibling_qid": "KOC-2026-02-2092-Q009", "sibling_text": "t c advancements", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharger advancements", "cross_family": false }, { "answer_id": "TC-CS-P01-002", "score": 0.48185503482818604, "sibling_score": 0.48185503482818604, "answer_score": null, "sibling_qid": "KOC-2024-09-1007-Q009", "sibling_text": "t c advancements", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "B·Advancements / new developments in turbocharging", "cross_family": false }, { "answer_id": "TC-CS-P01-004", "score": 0.4748424291610718, "sibling_score": 0.4748424291610718, "answer_score": null, "sibling_qid": "KOC-2024-10-0929-Q008", "sibling_text": "t c advancement explain vgt a r ratio", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "D·Variable geometry turbocharging (VGT / VTA) and the A/R ratio", "cross_family": false } ] }, { "qid": "MUM-2024-12-2780-Q003", "text": "Solas latest chp", "family": "SOLAS - General (HOLD)", "subtopic": "Solas Chapters Overview", "tid": "MUM-2024-12-2780", "tray": "new", "candidates": [ { "answer_id": "SOLAS-CH-015", "score": 0.5661141872406006, "sibling_score": 0.5661141872406006, "answer_score": 0.4196051001548767, "sibling_qid": "MUM-2026-02-0752-Q007", "sibling_text": "solas all chapters 8 3 4 more", "sibling_family": "SOLAS - General (HOLD)", "via": "sibling", "answer_title": "SOLAS chapters overview - current count and scope", "cross_family": false }, { "answer_id": "SOLAS-XII-BC-002", "score": 0.5574135780334473, "sibling_score": 0.5574135780334473, "answer_score": null, "sibling_qid": "MUM-2022-10-0061-Q001", "sibling_text": "chp 12 solas", "sibling_family": "SOLAS - General (HOLD)", "via": "sibling", "answer_title": "Explain SOLAS Chapter XII — the additional safety measures for bulk carriers", "cross_family": false }, { "answer_id": "SOLAS12-C-001", "score": 0.5113489627838135, "sibling_score": 0.5113489627838135, "answer_score": null, "sibling_qid": "KOC-2024-01-0278-Q013", "sibling_text": "solas chap 12 all chapters don t miss any", "sibling_family": "", "via": "sibling", "answer_title": "Explain SOLAS Chapter XII for bulk carriers — oral-exam overview", "cross_family": false } ] }, { "qid": "MUM-2024-12-2780-Q004", "text": "HSSC", "family": "Surveys - Statutory", "subtopic": "HSSC", "tid": "MUM-2024-12-2780", "tray": "review", "candidates": [ { "answer_id": "HSSC-001", "score": 0.7344977259635925, "sibling_score": 0.7344977259635925, "answer_score": 0.3573761433362961, "sibling_qid": "MUM-2026-09-3989-Q009", "sibling_text": "hssc", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is HSSC — the Harmonised System of Survey and Certification? Explain the harmonised survey system and programme, and what the \"HSSC code\" is.", "cross_family": false }, { "answer_id": "OPRC-SALV-004", "score": 0.7321109175682068, "sibling_score": 0.7321109175682068, "answer_score": 0.2887029603123665, "sibling_qid": "MUM-2026-09-3965-Q002", "sibling_text": "hssc", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "HNS — two different conventions, and the OPRC connection", "cross_family": false }, { "answer_id": "HSSC-002", "score": 0.5071360468864441, "sibling_score": 0.5071360468864441, "answer_score": 0.2779930830001831, "sibling_qid": "KOC-2026-04-0916-Q010", "sibling_text": "harmonised system of survey and certification which surveys are not included in hssc", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What are the initial, annual, periodical and intermediate surveys under HSSC, which surveys are NOT included, and which conventions does the harmonised system cover?", "cross_family": false } ] }, { "qid": "MUM-2024-12-2780-Q010", "text": "Function 3", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2024-12-2780", "tray": "review", "candidates": [ { "answer_id": "SEEMP-123-B-001", "score": 0.7286076545715332, "sibling_score": 0.7286076545715332, "answer_score": null, "sibling_qid": "KOC-2026-03-0880-Q002", "sibling_text": "function 3 contents", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SEEMP Part III — the ship's operational carbon-intensity (CII) plan", "cross_family": true }, { "answer_id": "UNL-330-001", "score": 0.6153193116188049, "sibling_score": 0.6153193116188049, "answer_score": null, "sibling_qid": "KOL-2022-04-1673-Q005", "sibling_text": "3 function of unloder x que", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "What is the function of the main air compressor unloader?", "cross_family": true }, { "answer_id": "IMO-CODES-P03-002", "score": 0.5826579332351685, "sibling_score": 0.5826579332351685, "answer_score": null, "sibling_qid": "MUM-2026-03-0815-Q003", "sibling_text": "which function", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": false } ] }, { "qid": "MUM-2024-12-2781-Q006", "text": "■solas chapter 15? Which code is there in it ?", "family": "SOLAS - General (HOLD)", "subtopic": "Solas Chapters Overview", "tid": "MUM-2024-12-2781", "tray": "new", "candidates": [ { "answer_id": "SOLAS-OVW-012", "score": 0.590313196182251, "sibling_score": 0.590313196182251, "answer_score": null, "sibling_qid": "KOL-2025-07-0991-Q014", "sibling_text": "solas chapter 15", "sibling_family": "", "via": "sibling", "answer_title": "SOLAS Chapter XV and the newest chapters", "cross_family": false }, { "answer_id": "SOLAS-XII-BC-002", "score": 0.5222335457801819, "sibling_score": 0.5222335457801819, "answer_score": null, "sibling_qid": "MUM-2022-10-0061-Q001", "sibling_text": "chp 12 solas", "sibling_family": "SOLAS - General (HOLD)", "via": "sibling", "answer_title": "Explain SOLAS Chapter XII — the additional safety measures for bulk carriers", "cross_family": false }, { "answer_id": "SOLAS-CH-005", "score": 0.520500898361206, "sibling_score": 0.520500898361206, "answer_score": 0.3722991585731506, "sibling_qid": "KOC-2026-02-0804-Q003", "sibling_text": "solas chapter 3 9 15", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Combined SOLAS Chapters III, IX and XV", "cross_family": true } ] }, { "qid": "MUM-2024-12-2781-Q008", "text": "■Tell me 6 codes under solas?", "family": "IMO Structure & Conventions", "subtopic": "SOLAS Chapters", "tid": "MUM-2024-12-2781", "tray": "review", "candidates": [ { "answer_id": "IMO-CODES-P03-001", "score": 0.7508493065834045, "sibling_score": 0.7508493065834045, "answer_score": null, "sibling_qid": "MUM-2026-06-3385-Q007", "sibling_text": "tell me 6 codes under solas", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Important IMO conventions and codes: parent links", "cross_family": false }, { "answer_id": "SOLAS-CH-016", "score": 0.45492222905158997, "sibling_score": 0.45492222905158997, "answer_score": 0.3820834055542946, "sibling_qid": "KOC-2024-12-2058-Q008", "sibling_text": "which ship u sailed igc code comes under which solas chapter", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Codes and certificates under SOLAS", "cross_family": false }, { "answer_id": "SOLAS-CH-012", "score": 0.4450216293334961, "sibling_score": 0.4450216293334961, "answer_score": null, "sibling_qid": "MUM-2025-08-0423-Q007", "sibling_text": "wht is ispc code solas chapter", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS XI-1, XI-2 and XIII - safety, security and audit", "cross_family": false } ] }, { "qid": "MUM-2024-12-2783-Q008", "text": "ship in hot area ac not able to cope up reasons", "family": "Refrigeration & AC", "subtopic": "Comfort Zone", "tid": "MUM-2024-12-2783", "tray": "review", "candidates": [ { "answer_id": "CAP-CTRL-004", "score": 0.7636167407035828, "sibling_score": 0.7636167407035828, "answer_score": null, "sibling_qid": "MUM-2025-08-2352-Q004", "sibling_text": "ship is going from hot climate to cold climate but the ac is not coping up and temp is getting hot capacity control system is not working actions for troubleshooting", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "CG-004 · Actions when the capacity control / unloader is not working", "cross_family": false }, { "answer_id": "CFZ-330-003", "score": 0.640601634979248, "sibling_score": 0.640601634979248, "answer_score": null, "sibling_qid": "KOL-2025-07-1812-Q006", "sibling_text": "ac comfort zone ship is in extreme cold how comfort zone is maintained how you increase the relative humidity", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Summer and winter operation — how the comfort zone is held, and how relative humidity is raised", "cross_family": false }, { "answer_id": "RAC-HPLP-389-003", "score": 0.6376805901527405, "sibling_score": 0.6376805901527405, "answer_score": null, "sibling_qid": "CHE-2026-02-0483-Q005", "sibling_text": "ac high temperature", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Trips and cutouts on a refrigeration compressor (HP, LP, LO)", "cross_family": false } ] }, { "qid": "MUM-2024-12-2784-Q004", "text": "Bore cooling", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "MUM-2024-12-2784", "tray": "new", "candidates": [ { "answer_id": "PC-TP-003", "score": 0.6033555865287781, "sibling_score": 0.6033555865287781, "answer_score": 0.44379951655864713, "sibling_qid": "KOC-2023-07-0925-Q009", "sibling_text": "how piston crown cooling taking place lube circuit from telescopic pipe where it return back", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston crown cooling oil circuit and where the oil returns", "cross_family": false }, { "answer_id": "CYL-LINER-P01-001", "score": 0.5995472073554993, "sibling_score": 0.5995472073554993, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001S4", "sibling_text": "liner cooling liner calibration", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Carrying out main-engine liner calibration (gauging)", "cross_family": false }, { "answer_id": "PIST-CSI-A-002", "score": 0.5839904546737671, "sibling_score": 0.5839904546737671, "answer_score": null, "sibling_qid": "CHE-2025-08-0190-Q002", "sibling_text": "type of piston type of cooling", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "2-stroke piston: parts, cooling arrangement and operating stresses", "cross_family": false } ] }, { "qid": "MUM-2025-01-0233-Q002", "text": "Container mateiral and structure and regulation", "family": "IMO Structure & Conventions", "subtopic": "IMO / Committees / Codes", "tid": "MUM-2025-01-0233", "tray": "new", "candidates": [ { "answer_id": "DBTB-A-002", "score": 0.6350233554840088, "sibling_score": 0.6350233554840088, "answer_score": null, "sibling_qid": "KOL-2026-05-4216-Q002", "sibling_text": "special construction requirement in container", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Double-bottom tanks: purpose, advantages, disadvantages and stability effect", "cross_family": true }, { "answer_id": "FIRE-P04-06", "score": 0.5840458273887634, "sibling_score": 0.5840458273887634, "answer_score": null, "sibling_qid": "KOL-2024-06-0842-Q001", "sibling_text": "container fir fighting equipment and its solas regulations", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Container-ship additional firefighting — SOLAS II-2/10.7.3, water-mist lance, HydroPen", "cross_family": true }, { "answer_id": "DBTB-A-004", "score": 0.5710821151733398, "sibling_score": 0.5710821151733398, "answer_score": null, "sibling_qid": "KOL-2018-09-0221-Q002", "sibling_text": "torsion box in containers requirements n construction", "sibling_family": "", "via": "sibling", "answer_title": "Torsion box: construction and arrangement in a container ship", "cross_family": false } ] }, { "qid": "MUM-2025-01-0233-Q003", "text": "Container fire fighting and how", "family": "Cargo Ops - Containers", "subtopic": "Fire Safety- Container", "tid": "MUM-2025-01-0233", "tray": "review", "candidates": [ { "answer_id": "CONT-FIRE-002", "score": 0.7805320620536804, "sibling_score": 0.7805320620536804, "answer_score": 0.6094326287508011, "sibling_qid": "MUM-2026-09-3992-Q007", "sibling_text": "container fire fighting", "sibling_family": "Cargo Ops - Containers", "via": "sibling", "answer_title": "How do you fight a fire in containers on deck, or where the affected container is not directly accessible?", "cross_family": false }, { "answer_id": "CONT-FIRE-003", "score": 0.7562996745109558, "sibling_score": 0.7562996745109558, "answer_score": null, "sibling_qid": "KOC-2025-03-0576-Q005", "sibling_text": "container fire fighting equipment", "sibling_family": "Cargo Ops - Containers", "via": "sibling", "answer_title": "What fixed firefighting systems, additional requirements and equipment are provided for container-ship cargo spaces?", "cross_family": false }, { "answer_id": "CONT-FIRE-001", "score": 0.7454028725624084, "sibling_score": 0.7454028725624084, "answer_score": null, "sibling_qid": "MUM-2026-01-2902-Q001", "sibling_text": "container fire fighting advancements", "sibling_family": "Cargo Ops - Containers", "via": "sibling", "answer_title": "What are the latest requirements, amendments and advancements for fire safety on container ships?", "cross_family": false } ] }, { "qid": "MUM-2025-01-0234-Q002", "text": "IG Alarms and trips", "family": "Tanker - Inert Gas System", "subtopic": "IG Alarms / Trips", "tid": "MUM-2025-01-0234", "tray": "review", "candidates": [ { "answer_id": "IGAT-583-001", "score": 0.7805752158164978, "sibling_score": 0.7805752158164978, "answer_score": 0.4528606623411178, "sibling_qid": "MUM-2026-04-0929-Q002", "sibling_text": "ig alarms and trips", "sibling_family": "Tanker - Inert Gas System", "via": "sibling", "answer_title": "State all the alarms, trips and safety cut-outs provided on a tanker inert gas (IG) system.", "cross_family": false }, { "answer_id": "MR-DS-PV-B-003", "score": 0.4589951545000076, "sibling_score": null, "answer_score": 0.4589951545000076, "sibling_qid": "", "sibling_text": "3 alarms trips valves and abnormal conditions of the deck seal key seal alarm low water level audible and visual fss requirement any low low trip interlock of gas delivery is maker ship sms logic and should be quoted from the approved ig manual a low seal a lost first barrier pressure oxygen instrumentation when ig is being supplied continuously indicate and permanently record the pressure of the ", "sibling_family": "", "via": "answer_title", "answer_title": "3. Alarms, trips, valves, and abnormal conditions of the deck seal", "cross_family": false }, { "answer_id": "IGAT-583-003", "score": 0.43376552164554594, "sibling_score": null, "answer_score": 0.43376552164554594, "sibling_qid": "", "sibling_text": "what are the set values for the ig system alarms and trips ig line high low and low low pressure oxygen content pv valve and breaker pressures statutory fss code ch 15 msc 367 93 oxygen alarm in excess of 5 by volume in the delivered gas 2 2 4 5 1 1 statutory gas pressure alarm less than 100 mm water gauge 2 2 4 5 1 3", "sibling_family": "", "via": "answer_title", "answer_title": "What are the set values for the IG system alarms and trips — IG line high, low and low-low pressure, oxygen content, PV valve and breaker pressures?", "cross_family": false } ] }, { "qid": "MUM-2025-01-0234-Q005", "text": "Ism functional requirements", "family": "ISM Code", "subtopic": "SMS / Functional Requirements", "tid": "MUM-2025-01-0234", "tray": "review", "candidates": [ { "answer_id": "ISM-AUD-P02-003", "score": 0.8059152960777283, "sibling_score": 0.8059152960777283, "answer_score": 0.4541552782058716, "sibling_qid": "MUM-2026-09-3991-Q005", "sibling_text": "functional requirements of ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "The six functional requirements of the ISM Code (clause 1.4)", "cross_family": false }, { "answer_id": "SMSFR-001", "score": 0.7537742257118225, "sibling_score": 0.7537742257118225, "answer_score": 0.48686149120330807, "sibling_qid": "MUM-2026-06-3581-Q001", "sibling_text": "what are the functional requirements of the ism code", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What are the functional requirements of the ISM Code and the SMS — and the requirement for internal audit?", "cross_family": false }, { "answer_id": "ISM-ELEM-003", "score": 0.5208906918764115, "sibling_score": null, "answer_score": 0.5208906918764115, "sibling_qid": "", "sibling_text": "elements chapters structure of the ism code part a implementation the 12 elements 1 general 1 1 definitions 1 2 objectives 1 3 application 1 4 functional requirements for an sms", "sibling_family": "", "via": "answer_title", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": false } ] }, { "qid": "MUM-2025-01-0234-Q006", "text": "What is MNC", "family": "ISM Code", "subtopic": "Major / Minor NC", "tid": "MUM-2025-01-0234", "tray": "review", "candidates": [ { "answer_id": "ISMNC-002", "score": 0.6973291039466858, "sibling_score": 0.6973291039466858, "answer_score": null, "sibling_qid": "MUM-2023-03-0091-Q009", "sibling_text": "define mnc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a major non-conformity under the ISM Code? Give the definition and name some.", "cross_family": false }, { "answer_id": "ISMNC-003", "score": 0.6438973546028137, "sibling_score": 0.6438973546028137, "answer_score": null, "sibling_qid": "MUM-2025-07-0350-Q003", "sibling_text": "mnc and nc define", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Differentiate between a major non-conformity and a non-conformity under the ISM Code.", "cross_family": false }, { "answer_id": "ISMNC-005", "score": 0.6358331441879272, "sibling_score": 0.6358331441879272, "answer_score": null, "sibling_qid": "MUM-2025-09-0447-Q005", "sibling_text": "mnc with example", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Give examples of a non-conformity and of a major non-conformity.", "cross_family": false } ] }, { "qid": "MUM-2025-01-0235-Q001", "text": "when was Latest amendment of ISM took place?? What was it??", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "MUM-2025-01-0235", "tray": "review", "candidates": [ { "answer_id": "BC-IMSBC-005", "score": 0.6790658235549927, "sibling_score": 0.6790658235549927, "answer_score": 0.39459671676158903, "sibling_qid": "MUM-2026-06-3603-Q001", "sibling_text": "latest amendments in ism and when", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "5. Latest IMSBC Code amendments", "cross_family": false }, { "answer_id": "COT-P02-10", "score": 0.5572007894515991, "sibling_score": 0.5572007894515991, "answer_score": null, "sibling_qid": "KOC-2025-05-2066-Q005", "sibling_text": "latest amendment in ig", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "State and explain the latest statutory amendments affecting tanker inert-gas systems, including applicability and practical changes on board.", "cross_family": true }, { "answer_id": "IGC-IGF-004", "score": 0.516393780708313, "sibling_score": 0.516393780708313, "answer_score": null, "sibling_qid": "MUM-2025-12-0649-Q015", "sibling_text": "latest amendment in igc code", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Latest amendments / new regulations — IGC and gas tankers", "cross_family": true } ] }, { "qid": "MUM-2025-01-0235-Q005", "text": "Djibouti Code?", "family": "Other Conventions", "subtopic": "Djibouti Code", "tid": "MUM-2025-01-0235", "tray": "new", "candidates": [ { "answer_id": "BWM-D1D2-P04-002", "score": 0.4115413427352905, "sibling_score": 0.4115413427352905, "answer_score": null, "sibling_qid": "KOC-2022-01-0048-Q013", "sibling_text": "bwms code explain d1 d2 d4", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "D-2 standard and the BWMS Code (ex-G8) — type approval of treatment systems", "cross_family": false }, { "answer_id": "IGC-IGF-001", "score": 0.37791579961776733, "sibling_score": 0.37791579961776733, "answer_score": null, "sibling_qid": "KOL-2025-11-1120-Q003", "sibling_text": "igc code igf code", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "IGC Code vs IGF Code — what they are and the difference", "cross_family": false }, { "answer_id": "BWM-D1D2-P02-002", "score": 0.37595438957214355, "sibling_score": 0.37595438957214355, "answer_score": null, "sibling_qid": "KOC-2023-01-0136-Q005", "sibling_text": "bwm d1 d2 etc", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "BWM Section D standards — D-1 to D-5 overview and how they differ", "cross_family": false } ] }, { "qid": "MUM-2025-01-0236-Q001", "text": "Types of ship sailed?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-01-0236", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8294122815132141, "sibling_score": 0.8294122815132141, "answer_score": null, "sibling_qid": "CHE-2026-09-3938-Q001", "sibling_text": "types of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7973535060882568, "sibling_score": 0.7973535060882568, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7828602194786072, "sibling_score": 0.7828602194786072, "answer_score": null, "sibling_qid": "CHE-2026-03-0253-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "MUM-2025-01-0236-Q002", "text": "Number of ships done?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-01-0236", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.664503276348114, "sibling_score": 0.664503276348114, "answer_score": null, "sibling_qid": "MUM-2026-02-1280-Q001", "sibling_text": "type of ship done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.5848960280418396, "sibling_score": 0.5848960280418396, "answer_score": null, "sibling_qid": "CHE-2026-05-0614-Q001", "sibling_text": "start from type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "SOLAS12-BC-A-001", "score": 0.5820056200027466, "sibling_score": 0.5820056200027466, "answer_score": null, "sibling_qid": "MUM-2026-04-2958-Q001", "sibling_text": "ship done bulk carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "SOLAS definition and scope of a bulk carrier", "cross_family": false } ] }, { "qid": "MUM-2025-01-0236-Q008", "text": "What is financial security in MLC?", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2025-01-0236", "tray": "new", "candidates": [ { "answer_id": "CLC-CIV-A-004", "score": 0.5501982569694519, "sibling_score": 0.5501982569694519, "answer_score": 0.2874878868460655, "sibling_qid": "MUM-2026-07-3757-Q004", "sibling_text": "certificate of financial security as per mlc", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "CLC certificate, blue card and certificate of financial security", "cross_family": true }, { "answer_id": "MLC-WRH-B-006", "score": 0.4628782868385315, "sibling_score": 0.4628782868385315, "answer_score": null, "sibling_qid": "MUM-2026-07-3680-Q005", "sibling_text": "what is mlc certificate under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false }, { "answer_id": "MLC-WRH-B-009", "score": 0.42474621534347534, "sibling_score": 0.42474621534347534, "answer_score": null, "sibling_qid": "CHE-2025-08-0426-Q009", "sibling_text": "ship owner abandoned the ship what will you do as per mlc i told financial security certificate for repartation", "sibling_family": "MLC", "via": "sibling", "answer_title": "Abandonment — financial security and repatriation", "cross_family": false } ] }, { "qid": "MUM-2025-01-0236-Q009", "text": "What is Major non conformity?", "family": "ISM Code", "subtopic": "Major / Minor NC", "tid": "MUM-2025-01-0236", "tray": "review", "candidates": [ { "answer_id": "ISMNC-002", "score": 0.7166178226470947, "sibling_score": 0.7166178226470947, "answer_score": 0.41696946024894715, "sibling_qid": "CHE-2026-05-0626-Q004", "sibling_text": "major non conformity", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a major non-conformity under the ISM Code? Give the definition and name some.", "cross_family": false }, { "answer_id": "ISMNC-003", "score": 0.6747875213623047, "sibling_score": 0.6747875213623047, "answer_score": 0.43737568259239196, "sibling_qid": "MUM-2025-01-0238-Q006", "sibling_text": "major non conformity and non conformity", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Differentiate between a major non-conformity and a non-conformity under the ISM Code.", "cross_family": false }, { "answer_id": "ISMNC-005", "score": 0.6144106388092041, "sibling_score": 0.6144106388092041, "answer_score": 0.4638977527618408, "sibling_qid": "KOL-2025-04-0931-Q012", "sibling_text": "example for major non confirmity", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Give examples of a non-conformity and of a major non-conformity.", "cross_family": false } ] }, { "qid": "MUM-2025-01-0237-Q001", "text": "Type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-01-0237", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8362272381782532, "sibling_score": 0.8362272381782532, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8015320897102356, "sibling_score": 0.8015320897102356, "answer_score": 0.5472018480300903, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8003028035163879, "sibling_score": 0.8003028035163879, "answer_score": 0.521466538310051, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2025-01-0237-Q004", "text": "Mlc detainable defiency.", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2025-01-0237", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-007", "score": 0.7292885780334473, "sibling_score": 0.7292885780334473, "answer_score": 0.3657629773020744, "sibling_qid": "MUM-2026-02-0754-Q002", "sibling_text": "mlc detainable dificiency", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false }, { "answer_id": "DCG-002", "score": 0.5402006506919861, "sibling_score": 0.5402006506919861, "answer_score": 0.3402876242995262, "sibling_qid": "KOL-2025-04-0931-Q013", "sibling_text": "example for detainable deficiency", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What are the reasons for PSC detention and what is a detainable deficiency? Which engine-room deficiencies can detain your ship, which conventions can ground a detainable deficiency, and what is banning by PSC?", "cross_family": true }, { "answer_id": "IGC-IGF-005", "score": 0.34581891149282457, "sibling_score": null, "answer_score": 0.34581891149282457, "sibling_qid": "", "sibling_text": "detainable deficiencies under the igc code detainable deficiency hazardous enough to warrant psc detention until rectified psc mou guidance applied with the igc code no valid international certificate of fitness or cargo not listed on it", "sibling_family": "", "via": "answer_title", "answer_title": "Detainable deficiencies under the IGC Code", "cross_family": false } ] }, { "qid": "MUM-2025-01-0238-Q004", "text": "Transom space", "family": "Ship Construction & Stability", "subtopic": "Stern Frame / Transom", "tid": "MUM-2025-01-0238", "tray": "review", "candidates": [ { "answer_id": "DUS-P5-03", "score": 0.7602606415748596, "sibling_score": 0.7602606415748596, "answer_score": null, "sibling_qid": "NOI-2026-09-0006-Q003", "sibling_text": "transom space", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Stern frame construction, cross-section and rudder-axis sketch", "cross_family": false }, { "answer_id": "PPS-230-004", "score": 0.5984110236167908, "sibling_score": 0.5984110236167908, "answer_score": null, "sibling_qid": "NOI-2026-09-0006-Q004", "sibling_text": "panting pounding arrangements in transom space", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Forward strengthening to resist pounding / slamming", "cross_family": false }, { "answer_id": "BHD-TYP-C-004", "score": 0.5129668712615967, "sibling_score": 0.5129668712615967, "answer_score": null, "sibling_qid": "KOC-2025-12-0741-Q004", "sibling_text": "what is wash bulkhead in transverse direction", "sibling_family": "", "via": "sibling", "answer_title": "Wash (swash) bulkhead — purpose and how it works", "cross_family": false } ] }, { "qid": "MUM-2025-01-0238-Q005", "text": "Neil robertson stretcher", "family": "SOLAS - LSA & Lifeboats", "subtopic": "LSA Code", "tid": "MUM-2025-01-0238", "tray": "new", "candidates": [ { "answer_id": "LSA-CODE-BF044-003", "score": 0.5119664400815963, "sibling_score": 0.3862053155899048, "answer_score": 0.5119664400815963, "sibling_qid": "KOL-2025-07-0982-Q006", "sibling_text": "name of strecher", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "answer_title", "answer_title": "What is the name of the stretcher carried on board?", "cross_family": false }, { "answer_id": "LRHR-B-002", "score": 0.2938547432422638, "sibling_score": 0.2938547432422638, "answer_score": null, "sibling_qid": "KOC-2025-01-2059-Q005", "sibling_text": "liferaft securing drawing", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "How is the liferaft stowed and secured on deck? Draw the arrangement.", "cross_family": false }, { "answer_id": "DRG-583-A-008", "score": 0.2922923266887665, "sibling_score": 0.2922923266887665, "answer_score": null, "sibling_qid": "KOC-2026-02-0831-Q009", "sibling_text": "draw lifeboat davit brake", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Davit safeties, and the limit switch", "cross_family": false } ] }, { "qid": "MUM-2025-01-1099-Q005", "text": "What is MDO chiller/ MDO cooler, how it works, when you will use what is the cooling media, what is its purpose, if temperature is high what arrangements in there in the line.", "family": "Heat Exchangers & Coolers", "subtopic": "Cooler Capacity Increase", "tid": "MUM-2025-01-1099", "tray": "new", "candidates": [ { "answer_id": "STHX-001", "score": 0.5507737398147583, "sibling_score": 0.5507737398147583, "answer_score": null, "sibling_qid": "CHE-2026-04-0257-Q009", "sibling_text": "shell and tube type cooler components", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "STHX-01 — Construction, parts, materials, tube fitting, pass arrangement and flow", "cross_family": false }, { "answer_id": "ACJCW-011", "score": 0.5500195026397705, "sibling_score": 0.5500195026397705, "answer_score": 0.4411775559186935, "sibling_qid": "MUM-2025-11-2871-Q004", "sibling_text": "sea water cooling air cooler jacker lo cooler which first", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Sea-water cooling order: air cooler, jacket-water cooler or lube-oil cooler first", "cross_family": false }, { "answer_id": "JCW-SYS-006", "score": 0.5321872234344482, "sibling_score": 0.5321872234344482, "answer_score": 0.47592051029205323, "sibling_qid": "KOL-2019-12-1880-Q003", "sibling_text": "teritiary cooling in engine mediums", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Describe the ME cooling system, its tertiary cooling media, and the types, number and arrangement of jackets", "cross_family": false } ] }, { "qid": "MUM-2025-01-2267-Q002", "text": "Type of ships", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-01-2267", "tray": "review", "candidates": [ { "answer_id": "LLST-AB-001", "score": 0.8286085724830627, "sibling_score": 0.8286085724830627, "answer_score": 0.5265603929758071, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.7944483757019043, "sibling_score": 0.7944483757019043, "answer_score": 0.5289273113012314, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.7893660664558411, "sibling_score": 0.7893660664558411, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false } ] }, { "qid": "MUM-2025-01-2267-Q006", "text": "AE con-rod big end clearance measurement. Not accepting the answers.", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Decarb Checks / Connecting Rod / Bottom End Bearing", "tid": "MUM-2025-01-2267", "tray": "new", "candidates": [ { "answer_id": "BEB-B-002", "score": 0.601719319820404, "sibling_score": 0.601719319820404, "answer_score": null, "sibling_qid": "KOC-2025-10-1959-Q015", "sibling_text": "conn rod ovality reason and values i said actual value from the manual with model and make but he asked if i know the thumb rule i think he was expecting 25 of bearing clearance", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bottom End Bearing — Clearance Measurement", "cross_family": true }, { "answer_id": "AE-CRP-004", "score": 0.6014178991317749, "sibling_score": 0.6014178991317749, "answer_score": 0.4555547684431076, "sibling_qid": "CHE-2025-08-0413-Q002", "sibling_text": "ae conn rod ovality checking", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE connecting-rod inspection — ovality, trueness, serrations, action if out of limit", "cross_family": false }, { "answer_id": "AECR-651-002", "score": 0.5996208786964417, "sibling_score": 0.5996208786964417, "answer_score": 0.43513025641441344, "sibling_qid": "MUM-2025-09-2421-Q005", "sibling_text": "ae con rod big end ovality how to take and max value", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you take the ovality of the AE big end in a 4-stroke, and what are the ovality limits and maximum value?", "cross_family": true } ] }, { "qid": "MUM-2025-01-2267-Q007", "text": "How to check integrity of torque wrench. Told we'll do the calibration by using dynamometer and procedure. Then started asking about what is dynamometer and how does it work! Not satisfied with the answers...!", "family": "Gauges & Tools", "subtopic": "Torque Wrench / Torque Spanner", "tid": "MUM-2025-01-2267", "tray": "review", "candidates": [ { "answer_id": "MICR-002", "score": 0.7000638842582703, "sibling_score": 0.7000638842582703, "answer_score": null, "sibling_qid": "MUM-2026-05-2998-Q007", "sibling_text": "how will you calibrate torque wrench onboard", "sibling_family": "Gauges & Tools", "via": "sibling", "answer_title": "Zero setting, calibration, error check and trueness", "cross_family": false }, { "answer_id": "RES-PROP-P02-004", "score": 0.6696904897689819, "sibling_score": 0.6696904897689819, "answer_score": null, "sibling_qid": "KOC-2025-11-2083-Q004", "sibling_text": "torsional meter working", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Ship power definitions and estimation — effective, delivered, shaft and indicated power", "cross_family": true }, { "answer_id": "MICR-003", "score": 0.6500951647758484, "sibling_score": 0.6500951647758484, "answer_score": null, "sibling_qid": "MUM-2026-02-2580-Q005", "sibling_text": "how to check the tool is properly calibrated", "sibling_family": "Gauges & Tools", "via": "sibling", "answer_title": "Cylinder liner calibration with the inside micrometer", "cross_family": false } ] }, { "qid": "MUM-2025-01-2268-Q004", "text": "In butterfly valve if seat is damage how will you repair onboard if you dont have any spares onboard ?", "family": "Auxiliary Equipment", "subtopic": "VALVES", "tid": "MUM-2025-01-2268", "tray": "review", "candidates": [ { "answer_id": "GV-330-002", "score": 0.6512179970741272, "sibling_score": 0.6512179970741272, "answer_score": 0.47920870184898373, "sibling_qid": "KOC-2026-02-2006-Q006", "sibling_text": "butterfly valve overhaul", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Gate valve overhaul, checks & the stuck / not-operating valve", "cross_family": false }, { "answer_id": "METAL-LOCK-003", "score": 0.6167327165603638, "sibling_score": 0.6167327165603638, "answer_score": 0.49679942727088927, "sibling_qid": "MUM-2025-05-0277-Q020", "sibling_text": "cage of main cooling sea water pump valve has crack no spare on board how to repair", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Cold repair of cracked cast-iron parts: liner, pump/valve cage, loose bearing seat", "cross_family": true }, { "answer_id": "PCD-P02-05", "score": 0.616675853729248, "sibling_score": 0.616675853729248, "answer_score": null, "sibling_qid": "MUM-2025-08-2824-Q005", "sibling_text": "how will you repair sleeve of ballast pump if damaged and spare not available onboard i told with cold repair either by metal putty or belzona putty result repeat", "sibling_family": "Pumps - 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How would you approach a cast-iron valve repair when the examiner probes welding and low-hydrogen electrodes?", "cross_family": false }, { "answer_id": "METAL-LOCK-001", "score": 0.4939639687538147, "sibling_score": null, "answer_score": 0.4939639687538147, "sibling_qid": "", "sibling_text": "what is metal locking stitching why use it materials benefits cold process zero heat applied at any stage for brittle cast iron and other castings where welding risks further cracking or a brittle heat affected zone", "sibling_family": "", "via": "answer_title", "answer_title": "What is metal locking / stitching, why use it, materials & benefits", "cross_family": false } ] }, { "qid": "MUM-2025-02-0967-Q002", "text": "Name of engine and type", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2025-02-0967", "tray": "review", "candidates": [ { "answer_id": "ENG-NOM-005", "score": 0.7622634768486023, "sibling_score": 0.7622634768486023, "answer_score": null, "sibling_qid": "KOL-2026-09-4295-Q002", "sibling_text": "engine name and full form", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false }, { "answer_id": "ETP-344-P03-001", "score": 0.7411466836929321, "sibling_score": 0.7411466836929321, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.7212182879447937, "sibling_score": 0.7212182879447937, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false } ] }, { "qid": "MUM-2025-02-0967-Q006", "text": "How the peak pressure and fuel quantity adjusted in me engine", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Injection System", "tid": "MUM-2025-02-0967", "tray": "new", "candidates": [ { "answer_id": "FCL-P03-001", "score": 0.6498726010322571, "sibling_score": 0.6498726010322571, "answer_score": null, "sibling_qid": "KOL-2024-06-3695-Q002", "sibling_text": "ae performance peak pressure and exhaust temp is high on kne unit reason how to adjust fuel pump timings all process to adjust timing need to retard or advance by srinivas", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "AE / auxiliary-engine fuel pump timing check and adjustment", "cross_family": false }, { "answer_id": "CR-248-002", "score": 0.6254975199699402, "sibling_score": 0.6254975199699402, "answer_score": null, "sibling_qid": "KOL-2021-12-1651-Q004", "sibling_text": "2 how fuel is injected in the cylinder in me full process various operating pressure", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How fuel is injected in electronically controlled ME / RT-flex engines — how rail or hydraulic pressure produces injection", "cross_family": false }, { "answer_id": "CR-248-001", "score": 0.6011605262756348, "sibling_score": 0.6011605262756348, "answer_score": null, "sibling_qid": "MUM-2025-08-2828-Q006", "sibling_text": "how fuel oil quantity is controlled in me c engine", "sibling_family": "2-Stroke - 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Annex I (Oil)", "subtopic": "OWS / 15ppm / ODMCS", "tid": "MUM-2025-02-2272", "tray": "review", "candidates": [ { "answer_id": "ODC-002", "score": 0.6694626212120056, "sibling_score": 0.6694626212120056, "answer_score": null, "sibling_qid": "KOL-2026-03-1206-Q004", "sibling_text": "bilge discharge criteria", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Machinery-space (engine room) bilge discharge criteria — outside a special area", "cross_family": false }, { "answer_id": "COT-P03-05", "score": 0.6677364110946655, "sibling_score": 0.6677364110946655, "answer_score": null, "sibling_qid": "MUM-2025-05-0252-Q001", "sibling_text": "test on ig and cargo pumping system before approaching the discharge port", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Alarms, trips and interlocks of the IG and cargo-pumping systems tested before discharge — and how, safely", "cross_family": true }, { "answer_id": "ODC-012", "score": 0.6600129008293152, "sibling_score": 0.6600129008293152, "answer_score": null, "sibling_qid": "CHE-2026-09-3928-Q004", "sibling_text": "slop tank discharge criteria", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Slop tank — arrangement, purpose and how a discharge is actually made", "cross_family": false } ] }, { "qid": "MUM-2025-03-0968-Q003", "text": "In DD checks on rudder, what clearances, how will you take pintle clearance", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "MUM-2025-03-0968", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.7323295474052429, "sibling_score": 0.7323295474052429, "answer_score": 0.5205837190151215, "sibling_qid": "KOL-2020-09-3346-Q009", "sibling_text": "clearances that you will measure for propellor and rudder in drydock how to check pintle clearance without removing rudder from place finally can breathe freely thanx everyone for all the help", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "RUD-DROP-002", "score": 0.608203673362732, "sibling_score": null, "answer_score": 0.608203673362732, "sibling_qid": "", "sibling_text": "rudder clearances which where and how taken pintle bush clearance at each pintle top bottom f a and p s on long feeler gauges or pintle od vs bush id by caliper top mid bottom the maximum is the clearance renew the bush at the maker class limit carrier bearing wear down the rudder drop poker trammel gauge hull datum to stock mark against the recorded newbuilding reading", "sibling_family": "", "via": "answer_title", "answer_title": "Rudder clearances: which, where and how taken", "cross_family": false }, { "answer_id": "DUS-P5-05", "score": 0.5050949394702912, "sibling_score": null, "answer_score": 0.5050949394702912, "sibling_qid": "", "sibling_text": "rudder checks and rudder blade tightness leak test in drydock visual checks coating condition cavitation erosion on the blade leading edge propeller side face sacrificial anodes against the approved cathodic protection plan grounding continuity against the approved acceptance criterion plate and weld cracks pintle clearance measured with feeler the numerical acceptance limit is class specific and ", "sibling_family": "", "via": "answer_title", "answer_title": "Rudder checks and rudder-blade tightness/leak test in drydock", "cross_family": false } ] }, { "qid": "MUM-2025-03-0968-Q004", "text": "Rudder horne what does it do. Few more don't remember and many x ques on every question. Waited in lobby n got fn 4 only", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "MUM-2025-03-0968", "tray": "new", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.5559333562850952, "sibling_score": 0.5559333562850952, "answer_score": null, "sibling_qid": "KOL-2017-03-3044-Q004", "sibling_text": "4 various tests and checks on rudder in dd", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "STEER-055-A-003", "score": 0.512681782245636, "sibling_score": 0.512681782245636, "answer_score": 0.3625643849372864, "sibling_qid": "KOL-2023-08-1751-Q006", "sibling_text": "hunting gear mechanism hunting of rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Hunting gear, floating lever and buffer spring", "cross_family": false }, { "answer_id": "PIST-CSI-A-001", "score": 0.4712288975715637, "sibling_score": 0.4712288975715637, "answer_score": null, "sibling_qid": "KOL-2022-11-1718-Q007", "sibling_text": "top land of me 4 rudder locking", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Oros combustion chamber, high top land and modern 2-stroke piston development", "cross_family": true } ] }, { "qid": "MUM-2025-03-1101-Q004", "text": "arramgement for rocket arm lubrication in 4 stroke engine", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE Tappet", "tid": "MUM-2025-03-1101", "tray": "new", "candidates": [ { "answer_id": "AE-CRP-008", "score": 0.5938312411308289, "sibling_score": 0.5938312411308289, "answer_score": null, "sibling_qid": "KOL-2022-03-1668-Q007", "sibling_text": "4st lubrication system especially gudgeon pin", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE gudgeon pin / small-end — removal, inspection, lubrication", "cross_family": false }, { "answer_id": "AE-CSB-346-001", "score": 0.5772843956947327, "sibling_score": 0.5772843956947327, "answer_score": null, "sibling_qid": "KOL-2022-05-1687-Q003", "sibling_text": "4 stroke propulsion engine thrust block arrangements", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Thrust bearing in an auxiliary / generator engine — purpose and location", "cross_family": false }, { "answer_id": "AE-MB-006", "score": 0.5594000220298767, "sibling_score": 0.5594000220298767, "answer_score": null, "sibling_qid": "KOL-2022-03-1667-Q004", "sibling_text": "ae main bearing upper half lubrication", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Lubrication of the upper half of an AE main bearing", "cross_family": false } ] }, { "qid": "MUM-2025-03-1101-Q005", "text": "How control air system is fitted onboard ? Wants to know more about control air dryer", "family": "Air Compressor", "subtopic": "MAC / Air Compressor", "tid": "MUM-2025-03-1101", "tray": "new", "candidates": [ { "answer_id": "ICAC-299-004", "score": 0.6289969086647034, "sibling_score": 0.6289969086647034, "answer_score": null, "sibling_qid": "KOL-2018-09-3189-Q003", "sibling_text": "air line intercooler and aftercooler purpose and arrangements to remove moisture from compressed air system", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Moisture removal: cooler, separator and drains", "cross_family": false }, { "answer_id": "MAC-598-002", "score": 0.6111257672309875, "sibling_score": 0.6111257672309875, "answer_score": null, "sibling_qid": "MUM-2026-01-1867-Q002", "sibling_text": "main air comp ckt which are the 2 ckt here power ckt and control ckt", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "The main air compressor circuit — power and control circuits, starting, and electrical safeties in the compressor room", "cross_family": false }, { "answer_id": "SAV-005", "score": 0.5772889852523804, "sibling_score": 0.5772889852523804, "answer_score": null, "sibling_qid": "KOL-2018-03-1358-Q002", "sibling_text": "starting air line full description control air pressure and main pressure", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "How air is admitted, and faults that stop starting air admission", "cross_family": true } ] }, { "qid": "MUM-2025-03-1101-Q008", "text": "Type of safety valve on your ship and parts?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2025-03-1101", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.7461764216423035, "sibling_score": 0.7461764216423035, "answer_score": null, "sibling_qid": "MUM-2026-01-2904-Q004", "sibling_text": "type of safety valve on boiler ur ship valve type full explain", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACRV-005", "score": 0.729505717754364, "sibling_score": 0.729505717754364, "answer_score": null, "sibling_qid": "MUM-2026-06-3418-Q007", "sibling_text": "what is the type of safety valve in your ship", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": false }, { "answer_id": "MR-DS-PV-B-006", "score": 0.6808967590332031, "sibling_score": 0.6808967590332031, "answer_score": null, "sibling_qid": "KOC-2026-09-2180-Q009", "sibling_text": "full bore safety valve construction", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "6. Deck isolating valve, deck relief/safety devices, and cargo-tank pressure", "cross_family": false } ] }, { "qid": "MUM-2025-03-1103-Q001", "text": "Fatigue failure ?", "family": "Materials & Metallurgy", "subtopic": "Creep / Fatigue Failure", "tid": "MUM-2025-03-1103", "tray": "review", "candidates": [ { "answer_id": "CFF-P02-001", "score": 0.7799046635627747, "sibling_score": 0.7799046635627747, "answer_score": 0.5618638932704926, "sibling_qid": "MUM-2026-05-3227-Q002", "sibling_text": "fatigue failure", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Fatigue failure — what it is and where it occurs", "cross_family": true }, { "answer_id": "CFF-P02-004", "score": 0.6934865117073059, "sibling_score": 0.6934865117073059, "answer_score": null, "sibling_qid": "MUM-2026-04-2985-Q005", "sibling_text": "fatigue failure and how to identify", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Fatigue crack initiation and identification", "cross_family": true }, { "answer_id": "MNS-016", "score": 0.5163469970226288, "sibling_score": null, "answer_score": 0.5163469970226288, "sibling_qid": "", "sibling_text": "a motor shaft has broken why and how almost always fatigue say so first then explain what fatigue needs fatigue needs a cyclic stress plus a stress raiser plus time", "sibling_family": "", "via": "answer_title", "answer_title": "A motor shaft has broken — why, and how", "cross_family": false } ] }, { "qid": "MUM-2025-03-1103-Q001S10", "text": "Creep failure ?", "family": "Materials & Metallurgy", "subtopic": "Creep / Fatigue Failure", "tid": "MUM-2025-03-1103", "tray": "review", "candidates": [ { "answer_id": "CREEP-FAT-P01-001", "score": 0.6814398765563965, "sibling_score": 0.6814398765563965, "answer_score": null, "sibling_qid": "KOC-2021-05-0936-Q003", "sibling_text": "creep failure", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "What is creep, and where does it occur in a marine engine?", "cross_family": true }, { "answer_id": "MEB-MEC-P03-004", "score": 0.34285686910152435, "sibling_score": null, "answer_score": 0.34285686910152435, "sibling_qid": "", "sibling_text": "me failure modes component replacement", "sibling_family": "", "via": "answer_title", "answer_title": "ME failure modes & component replacement", "cross_family": false }, { "answer_id": "CFF-P02-001", "score": 0.340436626970768, "sibling_score": null, "answer_score": 0.340436626970768, "sibling_qid": "", "sibling_text": "fatigue failure what it is and where it occurs cyclic fluctuating reversing stress below uts and often below yield static strength is no protection three stages crack initiation at a stress raiser slow stable propagation a step per cycle sudden final fast fracture when the remaining section overloads", "sibling_family": "", "via": "answer_title", "answer_title": "Fatigue failure — what it is and where it occurs", "cross_family": false } ] }, { "qid": "MUM-2025-03-1103-Q001S2", "text": "Volumetric efficiency of air compressor ?", "family": "", "subtopic": "", "tid": "MUM-2025-03-1103", "tray": "review", "candidates": [ { "answer_id": "AC-VE-002", "score": 0.7633684873580933, "sibling_score": 0.7633684873580933, "answer_score": 0.5419967353343963, "sibling_qid": "KOL-2020-01-1510-Q006", "sibling_text": "volumetric efficiency of air compressor definition in correct", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "What is volumetric efficiency, how is it calculated, and when/how do you check it?", "cross_family": false }, { "answer_id": "AC-VE-001", "score": 0.7390633821487427, "sibling_score": 0.7390633821487427, "answer_score": 0.5472970962524414, "sibling_qid": "MUM-2026-07-3773-Q004", "sibling_text": "how to get volumetric efficiency of air compressor", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Volumetric efficiency: define it, and if it drops how do you improve it (with bumping clearance)?", "cross_family": false }, { "answer_id": "AC-VE-006", "score": 0.6138651669025421, "sibling_score": null, "answer_score": 0.6138651669025421, "sibling_qid": "", "sibling_text": "what is the difference between volumetric efficiency and total efficiency of an air compressor volumetric efficiency quantity induced volume swept volume how well it breathes total overall efficiency work closeness to ideal normally isothermal", "sibling_family": "", "via": "answer_title", "answer_title": "What is the difference between volumetric efficiency and total efficiency of an air compressor?", "cross_family": false } ] }, { "qid": "MUM-2025-03-1103-Q001S3", "text": "T/c blower construction?", "family": "", "subtopic": "", "tid": "MUM-2025-03-1103", "tray": "review", "candidates": [ { "answer_id": "TC-CONST-005", "score": 0.7083925008773804, "sibling_score": 0.7083925008773804, "answer_score": 0.4144654959440231, "sibling_qid": "MUM-2024-12-2783-Q002", "sibling_text": "tc blower side construction", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Compressor/blower side components and air flow", "cross_family": false }, { "answer_id": "TCS-059-P04-002", "score": 0.5677969455718994, "sibling_score": 0.5677969455718994, "answer_score": 0.43004724383354187, "sibling_qid": "KOL-2024-06-1782-Q003", "sibling_text": "t c diffuser inducer blower and labyrinth seal function", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Air-side components: inducer, impeller, diffuser", "cross_family": false }, { "answer_id": "TURBO-CS-P03-004", "score": 0.5398744344711304, "sibling_score": 0.5398744344711304, "answer_score": null, "sibling_qid": "KOL-2021-08-1614-Q005", "sibling_text": "t c blades arrangements", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Rotor blade fixing: fir-tree / bulb root, damping (lacing) wire", "cross_family": false } ] }, { "qid": "MUM-2025-03-1103-Q001S4", "text": "Hot corrosion Cold corrosion ?", "family": "", "subtopic": "", "tid": "MUM-2025-03-1103", "tray": "review", "candidates": [ { "answer_id": "HOTC-333-002", "score": 0.7699156999588013, "sibling_score": 0.7699156999588013, "answer_score": 0.5735730409622192, "sibling_qid": "MUM-2024-09-1092-Q001S2", "sibling_text": "hot corrosion cold corrosion", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Differentiate hot corrosion and cold corrosion in a marine diesel engine.", "cross_family": false }, { "answer_id": "CC-294-004", "score": 0.7520121335983276, "sibling_score": 0.7520121335983276, "answer_score": 0.6051112473011017, "sibling_qid": "KOL-2024-09-1952-Q005", "sibling_text": "hot n cold corrosion", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Hot corrosion versus cold corrosion", "cross_family": false }, { "answer_id": "CC-294-001", "score": 0.5361021876335144, "sibling_score": null, "answer_score": 0.5361021876335144, "sibling_qid": "", "sibling_text": "what cold corrosion is and what it attacks mechanism s so2 some so3 so3 water combustion scavenge air moisture sulphuric acid which condenses where the liner wall is below the acid dew point it iscorrosivewear chemical acid attack not abrasive cat fine wear a different failure with a different cure", "sibling_family": "", "via": "answer_title", "answer_title": "What cold corrosion is, and what it attacks", "cross_family": false } ] }, { "qid": "MUM-2025-03-1103-Q001S5", "text": "QCV construction ?", "family": "", "subtopic": "", "tid": "MUM-2025-03-1103", "tray": "new", "candidates": [ { "answer_id": "QCV-001", "score": 0.5565056800842285, "sibling_score": 0.5565056800842285, "answer_score": null, "sibling_qid": "KOC-2023-12-0986-Q005", "sibling_text": "draw qcv", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Quick closing valve — construction and what it is", "cross_family": false }, { "answer_id": "FUSE-HRC-004", "score": 0.4151238203048706, "sibling_score": 0.4151238203048706, "answer_score": null, "sibling_qid": "MUM-2022-08-1349-Q003", "sibling_text": "hrc cross q", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "HRC fuse – construction, operation, materials, identification", "cross_family": false }, { "answer_id": "CO2-CALC-P01-002", "score": 0.4046570360660553, "sibling_score": 0.4046570360660553, "answer_score": null, "sibling_qid": "MUM-2025-06-0322-Q005", "sibling_text": "c02 calculations and cross q", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "How is the required CO2 quantity and number of bottles calculated for an engine-room total-flooding system?", "cross_family": false } ] }, { "qid": "MUM-2025-03-1103-Q001S6", "text": "Oil in observation tank action ?", "family": "", "subtopic": "", "tid": "MUM-2025-03-1103", "tray": "review", "candidates": [ { "answer_id": "CASC-COND-001", "score": 0.7211508750915527, "sibling_score": 0.7211508750915527, "answer_score": 0.5351918071508407, "sibling_qid": "MUM-2026-03-2642-Q007", "sibling_text": "oil sheen in observation tank actions", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Oil found in the cascade tank, hotwell or observation tank — actions, tracing the source, and preventing ingress", "cross_family": false }, { "answer_id": "SOPEP-003", "score": 0.6645050048828125, "sibling_score": 0.6645050048828125, "answer_score": null, "sibling_qid": "MUM-2026-03-2639-Q002", "sibling_text": "you are 2 e on ship you see oil shin in cascase tank your action", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Oil Spill and Bunkering-Spill Response under the SOPEP", "cross_family": false }, { "answer_id": "CASC-COND-005", "score": 0.6301603317260742, "sibling_score": 0.6301603317260742, "answer_score": 0.4752295047044754, "sibling_qid": "MUM-2025-07-2815-Q009", "sibling_text": "boiler observation tank have oil action", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Why there is an observation tank and where it is, and the cascade tank and cascade system explained", "cross_family": false } ] }, { "qid": "MUM-2025-03-1103-Q001S7", "text": "Pump greasing Pump and motor alignment ?", "family": "", "subtopic": "", "tid": "MUM-2025-03-1103", "tray": "review", "candidates": [ { "answer_id": "PAL-620-002", "score": 0.7324457764625549, "sibling_score": 0.7324457764625549, "answer_score": 0.5876720070838928, "sibling_qid": "MUM-2025-11-2478-Q001", "sibling_text": "pump motor alignment after pump overhaul", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "How do you align and refit a pump and motor set after an overhaul, and what checks apply? The pump vibrates after overhaul — reasons and actions.", "cross_family": false }, { "answer_id": "PAL-620-001", "score": 0.7243654131889343, "sibling_score": 0.7243654131889343, "answer_score": 0.5094602972269058, "sibling_qid": "MUM-2025-11-2494-Q002", "sibling_text": "pump and motor alignment", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "How do you check and set the alignment between a pump and its motor? Horizontal centrifugal pump — where the dial gauge goes and what values apply.", "cross_family": false }, { "answer_id": "SG-PUMP-003", "score": 0.5075785875320434, "sibling_score": null, "answer_score": 0.5075785875320434, "sibling_qid": "", "sibling_text": "sg pump 03 overhauling a hele shaw steering gear pump work to the maker s manual make safe first stop isolate and lock off the motor electrically shut suction and discharge relieve hydraulic pressure including any pressure trapped in the pump block drain oil open casing lift the rotating assembly inspect and measure key wear points cylinder body to d tube clearance slippers and gudgeon pins floati", "sibling_family": "", "via": "answer_title", "answer_title": "SG-PUMP-03 — Overhauling a Hele-Shaw steering-gear pump", "cross_family": false } ] }, { "qid": "MUM-2025-03-1103-Q001S8", "text": "Capacity control working ? Viscocity not coming up action ?", "family": "", "subtopic": "", "tid": "MUM-2025-03-1103", "tray": "review", "candidates": [ { "answer_id": "CAP-CTRL-004", "score": 0.6723994612693787, "sibling_score": 0.6723994612693787, "answer_score": 0.4890399396419525, "sibling_qid": "MUM-2025-09-2411-Q003", "sibling_text": "capacity control not working actions", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "CG-004 · Actions when the capacity control / unloader is not working", "cross_family": false }, { "answer_id": "CCSC-314-002", "score": 0.6425511837005615, "sibling_score": 0.6425511837005615, "answer_score": 0.4191715434193611, "sibling_qid": "MUM-2024-12-2783-Q010", "sibling_text": "capacity controller working", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Compressor capacity control and the capacity controller", "cross_family": false }, { "answer_id": "FHV-003", "score": 0.5995525121688843, "sibling_score": 0.5995525121688843, "answer_score": null, "sibling_qid": "KOC-2025-03-1031-Q005", "sibling_text": "viscosity of fo if viscothm not working how to control", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "03. Viscotherm failed or heater cannot raise temperature", "cross_family": false } ] }, { "qid": "MUM-2025-03-1103-Q001S9", "text": "Ae taking less load after every start ?", "family": "", "subtopic": "", "tid": "MUM-2025-03-1103", "tray": "new", "candidates": [ { "answer_id": "AEDEC-291-005", "score": 0.48690372705459595, "sibling_score": 0.48690372705459595, "answer_score": null, "sibling_qid": "MUM-2025-09-2421-Q003", "sibling_text": "ae why gradual load xq how to know running in has been achieved", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "5. Running-in, gradual loading, confirming run-in", "cross_family": false }, { "answer_id": "AEDEC-291-004", "score": 0.4815822243690491, "sibling_score": 0.4815822243690491, "answer_score": null, "sibling_qid": "KOL-2024-04-3685-Q005", "sibling_text": "ae checks after decarb how to take on load", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "4. Checks on no-load and before taking load", "cross_family": false }, { "answer_id": "AEDEC-291-003", "score": 0.4813196659088135, "sibling_score": 0.4813196659088135, "answer_score": null, "sibling_qid": "KOL-2019-06-3246-Q004", "sibling_text": "starting checks as 2e after ae decarb", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "3. Pre-start checks after decarb / recommissioning", "cross_family": false } ] }, { "qid": "MUM-2025-03-1104-Q001", "text": "and 6 Which type of ship? Which type of engine both Main engine and Auxiliary engine?\n—", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "MUM-2025-03-1104", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P01-001", "score": 0.6853708624839783, "sibling_score": 0.6853708624839783, "answer_score": null, "sibling_qid": "MUM-2026-04-2675-Q006S5", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.6821480393409729, "sibling_score": 0.6821480393409729, "answer_score": null, "sibling_qid": "MUM-2026-09-3882-Q001", "sibling_text": "introduction types of ship main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "AC-VE-001", "score": 0.6310946941375732, "sibling_score": 0.6310946941375732, "answer_score": null, "sibling_qid": "MUM-2026-01-2904-Q001", "sibling_text": "what type of ship engine power and nomenclature", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Volumetric efficiency: define it, and if it drops how do you improve it (with bumping clearance)?", "cross_family": false } ] }, { "qid": "MUM-2025-03-1106-Q001", "text": "Vessel type and engine", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "MUM-2025-03-1106", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8264346718788147, "sibling_score": 0.8264346718788147, "answer_score": null, "sibling_qid": "CHE-2026-03-0255-Q001", "sibling_text": "type of vessel and engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.791445791721344, "sibling_score": 0.791445791721344, "answer_score": null, "sibling_qid": "MUM-2026-07-3668-Q004", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7544930577278137, "sibling_score": 0.7544930577278137, "answer_score": null, "sibling_qid": "KOL-2025-12-2031-Q002", "sibling_text": "type of ship and engine sailed engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "MUM-2025-03-1106-Q009", "text": "■rudder bearing damaged in voyage,how will u proceed?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "MUM-2025-03-1106", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.7399221658706665, "sibling_score": 0.7399221658706665, "answer_score": null, "sibling_qid": "MUM-2026-06-3606-Q004", "sibling_text": "rudder damage at sea heading to dd for repair what repairs to expect", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "PRE-TEN-001", "score": 0.7172784209251404, "sibling_score": 0.7172784209251404, "answer_score": null, "sibling_qid": "MUM-2026-09-3907-Q001", "sibling_text": "rudder carrier bearing replacement in port", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Pre-stressing and pre-tensioning in main-engine bolting", "cross_family": false }, { "answer_id": "TRS-001", "score": 0.698078989982605, "sibling_score": 0.698078989982605, "answer_score": 0.5327913999557495, "sibling_qid": "KOL-2018-08-3167-Q004", "sibling_text": "rudder stock twisted how will you proceed what are the regulations to comply to proceed to next port if repair is not possible", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "The rudder stock is twisted — how do you proceed, recover the true midship datum, and what regulations let you proceed to the next port?", "cross_family": false } ] }, { "qid": "MUM-2025-03-1107-Q002", "text": "Which type of ship?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-03-1107", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8235278725624084, "sibling_score": 0.8235278725624084, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8042054176330566, "sibling_score": 0.8042054176330566, "answer_score": 0.5258882343769073, "sibling_qid": "MUM-2026-02-0731-Q002", "sibling_text": "what type of ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7978429198265076, "sibling_score": 0.7978429198265076, "answer_score": 0.5407540500164032, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "MUM-2025-03-1107-Q003", "text": "Which type of engine both Main engine and Auxiliary engine?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2025-03-1107", "tray": "review", "candidates": [ { "answer_id": "AEME-DIFF-001", "score": 0.6703264117240906, "sibling_score": 0.6703264117240906, "answer_score": 0.5471069037914276, "sibling_qid": "MUM-2026-03-2642-Q012", "sibling_text": "type of main and aux engine", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": true }, { "answer_id": "CTRL-TL-002", "score": 0.6162360310554504, "sibling_score": 0.6162360310554504, "answer_score": null, "sibling_qid": "MUM-2026-01-1253-Q001", "sibling_text": "type of main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Function of a controller, and types used on board", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.6153755784034729, "sibling_score": 0.6153755784034729, "answer_score": null, "sibling_qid": "MUM-2026-09-3913-Q001", "sibling_text": "type of main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false } ] }, { "qid": "MUM-2025-03-2274-Q001", "text": "How will you instruct junior engineer to take round and checks in running generator engine as a 2nd eng", "family": "2-Stroke - Operations & Casualty", "subtopic": "ER Round", "tid": "MUM-2025-03-2274", "tray": "new", "candidates": [ { "answer_id": "LO-TEST-P01-001", "score": 0.6322739720344543, "sibling_score": 0.6322739720344543, "answer_score": null, "sibling_qid": "MUM-2024-12-2262-Q001", "sibling_text": "as a second engineer how will you guide 4th engineer to check the condition of gen sump oil no test kit", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Onboard lube-oil tests and the viscosity test", "cross_family": true }, { "answer_id": "CRKC-INSP-001", "score": 0.6302604079246521, "sibling_score": 0.6302604079246521, "answer_score": 0.541369566321373, "sibling_qid": "KOL-2019-06-3244-Q002", "sibling_text": "crankcase inspection checks as a 2nd eng if some imp inspection missed by junior as 2nd wht point u shud recheck", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Routine main-engine crankcase inspection — checks as 2/E", "cross_family": true }, { "answer_id": "DDI-001", "score": 0.6212875843048096, "sibling_score": 0.6212875843048096, "answer_score": null, "sibling_qid": "MUM-2022-09-0050-Q007", "sibling_text": "as a 2nd engg what all safeties u check in engineroom anything regarding main engine and aux engine", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "You have just docked and the water is pumped out — what do you check on the hull, propeller, rudder, sea chest and underwater valves? Where do you gauge hull thickness, and how do you find a damaged rudder?", "cross_family": true } ] }, { "qid": "MUM-2025-03-2276-Q001S2", "text": "AE crankcase inspection how to confirm that main bearing shell is not rotating", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE CRANKCASE", "tid": "MUM-2025-03-2276", "tray": "review", "candidates": [ { "answer_id": "SB-PRG-B-003", "score": 0.7769293785095215, "sibling_score": 0.7769293785095215, "answer_score": null, "sibling_qid": "MUM-2025-02-2272-Q001", "sibling_text": "stuffing box overhaul in place with all safety 2 ae crankcase inspection how to confirm that main bearing shell is not rotating", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Safety, working table and securing studs", "cross_family": true }, { "answer_id": "CRKC-INSP-001", "score": 0.6745997071266174, "sibling_score": 0.6745997071266174, "answer_score": null, "sibling_qid": "MUM-2026-09-3876-Q005", "sibling_text": "crank case inspection of ae", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Routine main-engine crankcase inspection — checks as 2/E", "cross_family": false }, { "answer_id": "AE-MB-005", "score": 0.6684629321098328, "sibling_score": 0.6684629321098328, "answer_score": null, "sibling_qid": "MUM-2025-07-2329-Q003", "sibling_text": "4 s engine crank case inspections how to identify if any main bearing is down", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Telling whether an AE main bearing is down, dislocated or defective", "cross_family": false } ] }, { "qid": "MUM-2025-03-2276-Q002", "text": "AE blow through water is coming from indicator reasons", "family": "2-Stroke - Operations & Casualty", "subtopic": "Slow Turning vs Blow Through", "tid": "MUM-2025-03-2276", "tray": "review", "candidates": [ { "answer_id": "SAV-003", "score": 0.6512935161590576, "sibling_score": 0.6512935161590576, "answer_score": null, "sibling_qid": "MUM-2026-02-2546-Q004", "sibling_text": "ae starting time water is coming from indicator cockw while blow through what action as 2e", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Action when a unit starting air valve leaks or the line goes red hot in manoeuvring", "cross_family": false }, { "answer_id": "SEA-CHEST-006", "score": 0.5979415774345398, "sibling_score": 0.5979415774345398, "answer_score": null, "sibling_qid": "MUM-2026-01-2527-Q004", "sibling_text": "ae water coming out from all indicator cocks what action", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "2/E actions: leak, crack, fouling, stuck valve, valve-life", "cross_family": true }, { "answer_id": "PIPEFAB-009", "score": 0.5348162651062012, "sibling_score": 0.5348162651062012, "answer_score": 0.39222070425748823, "sibling_qid": "KOL-2020-12-3367-Q004", "sibling_text": "a e sea water pipe leaking action", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "A seawater or fire line is leaking / thinned down — action as 2/E, valve not holding, no hot work possible", "cross_family": true } ] }, { "qid": "MUM-2025-03-2276-Q003", "text": "sludge shore discharge at next port before that what check u will carry out .. at the tm of discharge u should not face any problem. 5.", "family": "MARPOL - Annex I (Oil)", "subtopic": "OWS / 15ppm / ODMCS", "tid": "MUM-2025-03-2276", "tray": "review", "candidates": [ { "answer_id": "ODC-002", "score": 0.6694626212120056, "sibling_score": 0.6694626212120056, "answer_score": null, "sibling_qid": "KOL-2026-03-1206-Q004", "sibling_text": "bilge discharge criteria", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Machinery-space (engine room) bilge discharge criteria — outside a special area", "cross_family": false }, { "answer_id": "COT-P03-05", "score": 0.6677364110946655, "sibling_score": 0.6677364110946655, "answer_score": null, "sibling_qid": "MUM-2025-05-0252-Q001", "sibling_text": "test on ig and cargo pumping system before approaching the discharge port", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Alarms, trips and interlocks of the IG and cargo-pumping systems tested before discharge — and how, safely", "cross_family": true }, { "answer_id": "ODC-012", "score": 0.66001296043396, "sibling_score": 0.66001296043396, "answer_score": null, "sibling_qid": "CHE-2026-09-3928-Q004", "sibling_text": "slop tank discharge criteria", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Slop tank — arrangement, purpose and how a discharge is actually made", "cross_family": false } ] }, { "qid": "MUM-2025-03-2279-Q001", "text": "In AE While blowing through u find water from all l/C, reason.", "family": "2-Stroke - Operations & Casualty", "subtopic": "Slow Turning vs Blow Through", "tid": "MUM-2025-03-2279", "tray": "new", "candidates": [ { "answer_id": "SAV-003", "score": 0.5772354006767273, "sibling_score": 0.5772354006767273, "answer_score": null, "sibling_qid": "MUM-2026-02-2546-Q004", "sibling_text": "ae starting time water is coming from indicator cockw while blow through what action as 2e", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Action when a unit starting air valve leaks or the line goes red hot in manoeuvring", "cross_family": false }, { "answer_id": "SLOWTURN-BT-002", "score": 0.5607170462608337, "sibling_score": 0.5607170462608337, "answer_score": null, "sibling_qid": "KOC-2025-08-1049-Q010", "sibling_text": "why blow throw", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Blow-through — why it is done, and why slow turning is still needed after it", "cross_family": false }, { "answer_id": "WIDAS-SMK-002", "score": 0.5104835629463196, "sibling_score": 0.5104835629463196, "answer_score": null, "sibling_qid": "KOC-2025-10-0670-Q027", "sibling_text": "widas how water entering into hold", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "WIDAS purpose and the three protected spaces", "cross_family": true } ] }, { "qid": "MUM-2025-03-2280-Q004", "text": "Holding bolt tighten procedure in deatils", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Holding Down Bolts", "tid": "MUM-2025-03-2280", "tray": "review", "candidates": [ { "answer_id": "TBR-TT-P02-002", "score": 0.6768743395805359, "sibling_score": 0.6768743395805359, "answer_score": null, "sibling_qid": "MUM-2026-02-2548-Q003", "sibling_text": "holding down bolt tighness check", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Checking tie rod tightness / slackness — stopped and running", "cross_family": false }, { "answer_id": "TBR-TT-P02-001", "score": 0.6763868927955627, "sibling_score": 0.6763868927955627, "answer_score": null, "sibling_qid": "KOL-2023-07-3619-Q001", "sibling_text": "tie bolt tightening procedure", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Tie rod tightening / hydraulic tensioning procedure", "cross_family": false }, { "answer_id": "FB-COUP-001", "score": 0.6664117574691772, "sibling_score": 0.6664117574691772, "answer_score": null, "sibling_qid": "MUM-2026-07-3674-Q004", "sibling_text": "fitted bolts procedure for fitting", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What fitted bolts are, what they do, and where they sit onboard", "cross_family": false } ] }, { "qid": "MUM-2025-04-0243-Q005", "text": "Risk assessment", "family": "Risk & Safety Management", "subtopic": "Enclosed Space Entry", "tid": "MUM-2025-04-0243", "tray": "review", "candidates": [ { "answer_id": "RA-MGMT-B-001", "score": 0.7983599305152893, "sibling_score": 0.7983599305152893, "answer_score": null, "sibling_qid": "KOL-2022-09-3563-Q003", "sibling_text": "risc assessment", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "How is a shipboard risk assessment prepared and carried out?", "cross_family": false }, { "answer_id": "RA-MGMT-A-001", "score": 0.7896279692649841, "sibling_score": 0.7896279692649841, "answer_score": 0.5664664089679717, "sibling_qid": "MUM-2026-08-3829-Q002", "sibling_text": "risk assessment", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "What is risk, what is hazard, and what is risk assessment?", "cross_family": false }, { "answer_id": "LVC-577-001", "score": 0.5820714116096496, "sibling_score": null, "answer_score": 0.5820714116096496, "sibling_qid": "", "sibling_text": "define likelihood and consequence in risk assessment risk has two elements likelihood and consequence the matrix rating commonly combines them by multiplying where the sms uses that method likelihood the chance probability the harm occurs how likely how often", "sibling_family": "", "via": "answer_title", "answer_title": "Define likelihood and consequence in risk assessment", "cross_family": false } ] }, { "qid": "MUM-2025-04-1489-Q001", "text": "Fisrt attempt , after orals asked me to wait in lobby , shrish told me pass in function 5 4b and 6 repeat", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-04-1489", "tray": "new", "candidates": [ { "answer_id": "WBRT-001", "score": 0.47476595640182495, "sibling_score": 0.47476595640182495, "answer_score": null, "sibling_qid": "MUM-2026-01-2904-Q011", "sibling_text": "brake retedering test he said to internal he is okay in 4b and 6 me thoda thoda bataya then internal said okay i m giving u 4b and repeat in 6", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Carrying out a mooring-winch brake rendering test", "cross_family": true }, { "answer_id": "IGAT-583-001", "score": 0.469521164894104, "sibling_score": 0.469521164894104, "answer_score": null, "sibling_qid": "KOL-2023-06-3616-Q004", "sibling_text": "inert gas generator safety trips and alarms asked me to wait outside then rao called and said you have passed in 4 but we will consider you for 6 as well", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "State all the alarms, trips and safety cut-outs provided on a tanker inert gas (IG) system.", "cross_family": true }, { "answer_id": "NDT-METH-P02-001", "score": 0.4645489454269409, "sibling_score": 0.4645489454269409, "answer_score": null, "sibling_qid": "KOC-2026-02-2001-Q005", "sibling_text": "what is magnetic particle testing told me to wait in the lobby waited almost 1 hr then heard the golden words congrats ur pass in fn 6", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "1. 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Which engine-room deficiencies can detain your ship, which conventions can ground a detainable deficiency, and what is banning by PSC?", "cross_family": true }, { "answer_id": "IGC-IGF-005", "score": 0.5800046920776367, "sibling_score": 0.5800046920776367, "answer_score": 0.5438451588153839, "sibling_qid": "KOC-2024-03-0308-Q002", "sibling_text": "detainable deficiencies as per igc code", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Detainable deficiencies under the IGC Code", "cross_family": true } ] }, { "qid": "MUM-2025-05-0253-Q002", "text": "Imo structure", "family": "Other Conventions", "subtopic": "UNCLOS", "tid": "MUM-2025-05-0253", "tray": "review", "candidates": [ { "answer_id": "IMO-CC-P01-001", "score": 0.7823330760002136, "sibling_score": 0.7823330760002136, "answer_score": 0.39093837440013884, "sibling_qid": "MUM-2026-03-0826-Q006", "sibling_text": "imo structure", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Explain the structure and organs of IMO — Assembly, Council, Committees and Secretariat.", "cross_family": false }, { "answer_id": "IMO-5PIL-001", "score": 0.7316306829452515, "sibling_score": 0.7316306829452515, "answer_score": 0.39054752737283704, "sibling_qid": "MUM-2025-11-0571-Q001", "sibling_text": "imo structure", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Structure of IMO — the main organs", "cross_family": true }, { "answer_id": "IMO-CODES-P03-002", "score": 0.43110378980636593, "sibling_score": null, "answer_score": 0.43110378980636593, "sibling_qid": "", "sibling_text": "imo overview structure committees certificates imsas ui and carbon strategy", "sibling_family": "", "via": "answer_title", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": false } ] }, { "qid": "MUM-2025-05-0254-Q002", "text": "Loadline survey preparation in E/R as 2/E", "family": "Load Line Convention", "subtopic": "Load Line Convention", "tid": "MUM-2025-05-0254", "tray": "review", "candidates": [ { "answer_id": "LLC-SURV-P01-001", "score": 0.6698988676071167, "sibling_score": 0.6698988676071167, "answer_score": 0.38259037435054777, "sibling_qid": "KOC-2024-11-0473-Q009", "sibling_text": "load line survey preparation as 2e inside er and deck", "sibling_family": "", "via": "sibling", "answer_title": "Load line survey preparation as Second Engineer: engine-room scope, machinery openings, tanks/vents, valves and overboard checks", "cross_family": false }, { "answer_id": "LLC-SURV-P02-001", "score": 0.628364086151123, "sibling_score": 0.628364086151123, "answer_score": null, "sibling_qid": "MUM-2025-08-0382-Q009", "sibling_text": "loadline survey as 2 e", "sibling_family": "", "via": "sibling", "answer_title": "1. 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"sibling_score": 0.8003027439117432, "answer_score": 0.5214664876461029, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2025-05-0258-Q004", "text": "Coastal state what they do", "family": "Other Conventions", "subtopic": "UNCLOS", "tid": "MUM-2025-05-0258", "tray": "review", "candidates": [ { "answer_id": "UNCLOS-005", "score": 0.6974973082542419, "sibling_score": 0.6974973082542419, "answer_score": 0.42065242528915403, "sibling_qid": "KOC-2025-05-0598-Q002", "sibling_text": "what is coastal state", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is a coastal state under UNCLOS, and how does it differ from the flag state and the port state?", "cross_family": false }, { "answer_id": "PSC-SURV-P01-004", "score": 0.5913264155387878, "sibling_score": 0.5913264155387878, "answer_score": 0.3117993116378784, "sibling_qid": "KOL-2025-09-1056-Q004", "sibling_text": "flag state port state coastal state describe each", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the difference between flag State, port State and coastal State control?", "cross_family": true }, { "answer_id": "FLAG-ST-003", "score": 0.5763634443283081, "sibling_score": 0.5763634443283081, "answer_score": 0.3067714720964432, "sibling_qid": "MUM-2026-03-0850-Q002", "sibling_text": "flag state and coastal state", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Flag state vs port state / PSC / PSI vs class vs coastal state", "cross_family": true } ] }, { "qid": "MUM-2025-05-0259-Q001", "text": "What type of ship and size", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-05-0259", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.7214736938476562, "sibling_score": 0.7214736938476562, "answer_score": null, "sibling_qid": "CHE-2026-04-0169-Q002", "sibling_text": "what type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.704113781452179, "sibling_score": 0.704113781452179, "answer_score": 0.47476040720939633, "sibling_qid": "MUM-2026-02-0731-Q002", "sibling_text": "what type of ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7027190923690796, "sibling_score": 0.7027190923690796, "answer_score": 0.5003822803497314, "sibling_qid": "KOC-2026-09-2198-Q001", "sibling_text": "type a and b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "MUM-2025-05-0259-Q002", "text": "How center of gravity of ship changes with container loading", "family": "Cargo Ops - Containers", "subtopic": "CARGO HOLD", "tid": "MUM-2025-05-0259", "tray": "review", "candidates": [ { "answer_id": "CONT-STAB-001", "score": 0.6984240412712097, "sibling_score": 0.6984240412712097, "answer_score": 0.564219969511032, "sibling_qid": "MUM-2026-08-3829-Q004", "sibling_text": "container loading on deck affects", "sibling_family": "Cargo Ops - Containers", "via": "sibling", "answer_title": "Loading containers on deck / at higher tiers — effect on stability and how to improve it", "cross_family": false }, { "answer_id": "DBTB-A-004", "score": 0.613335907459259, "sibling_score": 0.613335907459259, "answer_score": null, "sibling_qid": "MUM-2026-06-3658-Q001", "sibling_text": "how are containers loaded on the side of ships what member provides support to it torsion box", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Torsion box: construction and arrangement in a container ship", "cross_family": true }, { "answer_id": "DB-TORBOX-B-001", "score": 0.5711348652839661, "sibling_score": 0.5711348652839661, "answer_score": null, "sibling_qid": "KOL-2023-09-0767-Q001", "sibling_text": "which ship sailed what is different in container ships than others torsion box construction where to where", "sibling_family": "", "via": "sibling", "answer_title": "Torsion box — purpose, location, and why container ships", "cross_family": false } ] }, { "qid": "MUM-2025-05-0259-Q003", "text": "Do we actually take ballast in container ships and why?", "family": "Cargo Ops - Containers", "subtopic": "CARGO HOLD", "tid": "MUM-2025-05-0259", "tray": "new", "candidates": [ { "answer_id": "BUNK-PLAN-004", "score": 0.6493239402770996, "sibling_score": 0.6493239402770996, "answer_score": null, "sibling_qid": "KOL-2017-01-0042-Q006", "sibling_text": "ship in ballast condition and u r taking bunkering wt document on board u ll use so that tank will not causes overflow", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Bunker plan: tank selection, quantity / overflow control, calculation and procedure", "cross_family": true }, { "answer_id": "SOLAS12-C-001", "score": 0.6141776442527771, "sibling_score": 0.6141776442527771, "answer_score": null, "sibling_qid": "KOL-2020-06-0412-Q004", "sibling_text": "in what case we can ballast cargo hold", "sibling_family": "", "via": "sibling", "answer_title": "Explain SOLAS Chapter XII for bulk carriers — oral-exam overview", "cross_family": false }, { "answer_id": "BC-HOPPER-G-002", "score": 0.5860781073570251, "sibling_score": 0.5860781073570251, "answer_score": 0.5159817099571228, "sibling_qid": "KOL-2026-09-4308-Q005", "sibling_text": "under what condition hopper tank of bulk carrier ballasting carried out", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Ballasting the upper hopper / topside tank — when and why", "cross_family": true } ] }, { "qid": "MUM-2025-05-0259-Q006", "text": "Fire fighting system on boilers", "family": "Boilers - Operations & Firing", "subtopic": "Boiler Backfire / Blowback", "tid": "MUM-2025-05-0259", "tray": "review", "candidates": [ { "answer_id": "UPT-FIRE-001", "score": 0.7807156443595886, "sibling_score": 0.7807156443595886, "answer_score": null, "sibling_qid": "KOC-2025-01-1896-Q004", "sibling_text": "boiler uptake fire actions", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "The 4/E reports an uptake fire — your actions as 2/E", "cross_family": false }, { "answer_id": "UPT-FIRE-002", "score": 0.7732368111610413, "sibling_score": 0.7732368111610413, "answer_score": 0.5297311455011368, "sibling_qid": "KOL-2024-11-1789-Q011", "sibling_text": "boiler uptake fire indication action", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "How a boiler uptake fire takes place — indications and prevention", "cross_family": false }, { "answer_id": "BLR-OPS-007", "score": 0.767444372177124, "sibling_score": 0.767444372177124, "answer_score": null, "sibling_qid": "KOL-2019-07-3251-Q004", "sibling_text": "firing of a auto fire boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Explain the firing sequence of an automatically fired boiler.", "cross_family": false } ] }, { "qid": "MUM-2025-05-0259-Q007", "text": "Annex 3 any new norms", "family": "MARPOL - Annex III", "subtopic": "Harmful Substances in Packaged Form", "tid": "MUM-2025-05-0259", "tray": "new", "candidates": [ { "answer_id": "AVIAMD-001", "score": 0.6234076023101807, "sibling_score": 0.6234076023101807, "answer_score": null, "sibling_qid": "MUM-2025-05-0259-Q008", "sibling_text": "annnex 6 any new norms", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What are the 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"EXHV-P01-001", "score": 0.8362665176391602, "sibling_score": 0.8362665176391602, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8014071583747864, "sibling_score": 0.8014071583747864, "answer_score": 0.5467351317405701, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.7999894022941589, "sibling_score": 0.7999894022941589, "answer_score": 0.5214929342269897, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2025-05-0265-Q005", "text": "ISM CODE", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "MUM-2025-05-0265", "tray": "review", "candidates": [ { "answer_id": "ISM-ELEM-002", "score": 0.796021044254303, "sibling_score": 0.796021044254303, "answer_score": 0.41694065779447553, "sibling_qid": "MUM-2026-06-3653-Q001", "sibling_text": "ism code", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the ISM Code?", "cross_family": false }, { "answer_id": "ISM-ELEM-003", "score": 0.4155194580554962, "sibling_score": null, "answer_score": 0.4155194580554962, "sibling_qid": "", "sibling_text": "elements chapters structure of the ism code part a implementation the 12 elements 1 general 1 1 definitions 1 2 objectives 1 3 application 1 4 functional requirements for an sms", "sibling_family": "", "via": "answer_title", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": false }, { "answer_id": "ISM-AUD-P02-002", "score": 0.3895188972353935, "sibling_score": null, "answer_score": 0.3895188972353935, "sibling_qid": "", "sibling_text": "ism code what it is purpose objectives and structure full name carries both limbs safe operation of ships and pollution prevention never drop the pollution half adopted by resolution a 741 18 in 1993 given legal force through solas chapter ix in force 1 july 1998 phase 1", "sibling_family": "", "via": "answer_title", "answer_title": "ISM Code — what it is, purpose, objectives and structure", "cross_family": false } ] }, { "qid": "MUM-2025-05-0265-Q006", "text": "Managemet review", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "MUM-2025-05-0265", "tray": "review", "candidates": [ { "answer_id": "ISM-ELEM-006", "score": 0.7490758299827576, "sibling_score": 0.7490758299827576, "answer_score": 0.45975835621356964, "sibling_qid": 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"Keel & Framing", "tid": "MUM-2025-05-0265", "tray": "review", "candidates": [ { "answer_id": "KEEL-FRM-B-003", "score": 0.7302324771881104, "sibling_score": 0.7302324771881104, "answer_score": 0.37365707904100415, "sibling_qid": "KOL-2020-06-0412-Q003", "sibling_text": "rise of floor from where it rises", "sibling_family": "", "via": "sibling", "answer_title": "Rise of floor, camber, deadrise & hull-form terms", "cross_family": false }, { "answer_id": "FLR-WFB-P01-002", "score": 0.501761257648468, "sibling_score": 0.501761257648468, "answer_score": null, "sibling_qid": "MUM-2023-09-0128-Q002", "sibling_text": "solid floor", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "The solid floor — what it is, where it is fitted, its components", "cross_family": false }, { "answer_id": "FLR-WFB-P01-001", "score": 0.48397061228752136, "sibling_score": 0.48397061228752136, "answer_score": 0.38226004540920255, "sibling_qid": "KOL-2025-10-1101-Q003", "sibling_text": "floor type", 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- Tankers", "via": "sibling", "answer_title": "Draw and explain the hydrocarbon flammability diagram. What is its purpose and functional requirement, why is the line tapered, and how do you mark a point on it?", "cross_family": true }, { "answer_id": "COT-01", "score": 0.642379641532898, "sibling_score": 0.642379641532898, "answer_score": null, "sibling_qid": "KOC-2026-04-0892-Q003", "sibling_text": "type of ship sailed tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Oil-tanker types, definitions and cargo capability", "cross_family": false } ] }, { "qid": "MUM-2025-05-0268-Q002", "text": "Device used onboard to measure hc gas, calibration of same", "family": "Gas Detection & Instruments", "subtopic": "Explosimeter / Gas Detector", "tid": "MUM-2025-05-0268", "tray": "review", "candidates": [ { "answer_id": "ESE-P02-002", "score": 0.6800038814544678, "sibling_score": 0.6800038814544678, "answer_score": null, "sibling_qid": "CHE-2026-04-0145-Q005S2", "sibling_text": "calibration procedure for gas detection equipment", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "ESE-P02-02. Oxygen analyser: working principle and calibration", "cross_family": true }, { "answer_id": "GAS-DET-008", "score": 0.6584539413452148, "sibling_score": 0.6584539413452148, "answer_score": 0.587639582157135, "sibling_qid": "MUM-2026-09-3905-Q001", "sibling_text": "calibration of explosive meter", "sibling_family": "Gas Detection & Instruments", "via": "sibling", "answer_title": "Explosimeter: construction, working, calibration, gases detected", "cross_family": false }, { "answer_id": "GAS-DET-009", "score": 0.6327645778656006, "sibling_score": 0.6327645778656006, "answer_score": 0.5044222742319107, "sibling_qid": "CHE-2025-11-0309-Q002", "sibling_text": "personal gas detector working", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Personal gas detector: principle and use", "cross_family": true } ] }, { "qid": "MUM-2025-05-0270-Q006", "text": "Double bottom tank pressure testing", "family": "Ship Construction & Naval Architecture", "subtopic": "Double Bottom / Torsion Box", "tid": "MUM-2025-05-0270", "tray": "review", "candidates": [ { "answer_id": "DBTB-A-003", "score": 0.7927817702293396, "sibling_score": 0.7927817702293396, "answer_score": 0.5870601385831833, "sibling_qid": "KOC-2026-02-2000-Q003", "sibling_text": "double bottom tank pressure testing", "sibling_family": "", "via": "sibling", "answer_title": "Carrying out a double-bottom tank pressure / tank test", "cross_family": false }, { "answer_id": "DUS-P5-06", "score": 0.6987349390983582, "sibling_score": 0.6987349390983582, "answer_score": null, "sibling_qid": "CHE-2026-05-0641-Q007", "sibling_text": "db ballast tank pressure testing", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "DB and ballast tank pressure testing — procedure and head", "cross_family": true }, { "answer_id": "STHX-003", "score": 0.5032952040433883, "sibling_score": null, "answer_score": 0.5032952040433883, "sibling_qid": "", "sibling_text": "sthx 03 pressure and leak testing isolate drain the non test side fill the test side with water and vent all the air test each side separately so a tube joint leak shows from the open side", "sibling_family": "", "via": "answer_title", "answer_title": "STHX-03 — Pressure and leak testing", "cross_family": false } ] }, { "qid": "MUM-2025-05-0270-Q007", "text": "Life raft solas requirement n x que.", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Liferaft / HRU", "tid": "MUM-2025-05-0270", "tray": "review", "candidates": [ { "answer_id": "LRHR-B-001", "score": 0.6735140681266785, "sibling_score": 0.6735140681266785, "answer_score": 0.47276211977005006, "sibling_qid": "CHE-2026-05-0618-Q006", "sibling_text": "life raft requirement as per solas", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What does SOLAS require for liferafts on a cargo ship — how many, what capacity, and the forward raft?", "cross_family": false }, { "answer_id": "LRHR-A-001", "score": 0.6673802733421326, "sibling_score": 0.6673802733421326, "answer_score": 0.47267416715621946, "sibling_qid": "KOL-2016-12-0038-Q005", "sibling_text": "life raft solas requirement", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "SOLAS requirement for liferafts on a cargo ship — number and total capacity", "cross_family": false }, { "answer_id": "LRHR-A-004", "score": 0.6393704414367676, "sibling_score": 0.6393704414367676, "answer_score": null, "sibling_qid": "KOL-2025-12-1139-Q005", "sibling_text": "as per solas life raft equipment only 4 qstn", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Liferaft equipment as per SOLAS — the A pack and the B pack", "cross_family": false } ] }, { "qid": "MUM-2025-05-0271-Q003", "text": "Bulbous Bow and on which ships they r provided and y", "family": "", "subtopic": "Bulbous Bow", "tid": "MUM-2025-05-0271", "tray": "new", "candidates": [ { "answer_id": "PPS-230-006", "score": 0.5869500637054443, "sibling_score": 0.5869500637054443, "answer_score": null, "sibling_qid": "MUM-2026-02-0782-Q011", "sibling_text": "bulbous bow how it is connected to ship shape of bow", "sibling_family": "", "via": "sibling", "answer_title": "Fore-end / fore-peak structure: draw and describe", "cross_family": false }, { "answer_id": "BC-IMSBC-002", "score": 0.5128241181373596, "sibling_score": 0.5128241181373596, "answer_score": null, "sibling_qid": "MUM-2022-08-0040-Q002", "sibling_text": "since i sailed on container and bulk carrier he started with what s the design difference the bulbous bow of container and bulk carrier and why it is so", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "2. Bulk carrier construction and structural design", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.49015548825263977, "sibling_score": 0.49015548825263977, "answer_score": null, "sibling_qid": "KOC-2024-11-0474-Q002", "sibling_text": "b60 type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2025-05-0273-Q007", "text": "types of engine", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2025-05-0273", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.7226476073265076, "sibling_score": 0.7226476073265076, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.7150670886039734, "sibling_score": 0.7150670886039734, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-001", "score": 0.44813933968544006, "sibling_score": null, "answer_score": 0.44813933968544006, "sibling_qid": "", "sibling_text": "1 turbocharger type main engine vs generator engine compressor is centrifugal in both cases only the turbine type differs large slow speed main engine axial flow turbine single stage constant pressure system", "sibling_family": "", "via": "answer_title", "answer_title": "1. Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "MUM-2025-05-0273-Q009", "text": "how is hydraulic oil supplied to fuel pump", "family": "", "subtopic": "", "tid": "MUM-2025-05-0273", "tray": "new", "candidates": [ { "answer_id": "FP-OVHL-006", "score": 0.6231026649475098, "sibling_score": 0.6231026649475098, "answer_score": null, "sibling_qid": "MUM-2026-02-1259-Q004", "sibling_text": "which pump is used for supplying fuel oil to me", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Main-engine fuel pump — construction, working, VIT, reversing, MC vs ME-C", "cross_family": false }, { "answer_id": "CR-248-002", "score": 0.6119883060455322, "sibling_score": 0.6119883060455322, "answer_score": null, "sibling_qid": "KOC-2026-02-1103-Q010", "sibling_text": "how in me engine fuel injection occurs fuel pump controlled by hydraulic pressure x pressure of hyd oil and fuel oil 250 bar and 1000 bar x how 250 bar generates 1000 bar area is much larger internal as second engineer how you will do a decarb expain detail", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How fuel is injected in electronically controlled ME / RT-flex engines — how rail or hydraulic pressure produces injection", "cross_family": false }, { "answer_id": "HSAP-583-A-006", "score": 0.5884599685668945, "sibling_score": 0.5884599685668945, "answer_score": null, "sibling_qid": "CHE-2026-04-0256-Q002", "sibling_text": "hyd pump working in me engine", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Which pumps go where: steering gear, deck machinery, main engine hydraulics", "cross_family": false } ] }, { "qid": "MUM-2025-05-0273-Q010", "text": "what kind of pump is engine driven pump", "family": "", "subtopic": "", "tid": "MUM-2025-05-0273", "tray": "review", "candidates": [ { "answer_id": "MEB-MEC-P03-003", "score": 0.6745418310165405, "sibling_score": 0.6745418310165405, "answer_score": null, "sibling_qid": "KOL-2018-09-1417-Q004", "sibling_text": "me engine engine driven hydraulic pump use and safeties incorporated", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "ME hydraulic power supply (HPS) & safeties", "cross_family": false }, { "answer_id": "HSAP-583-A-008", "score": 0.6536015272140503, "sibling_score": 0.6536015272140503, "answer_score": null, "sibling_qid": "MUM-2023-06-2734-Q012", "sibling_text": "said swash plate pump at main engin variable displacement motor don t know", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Axial piston / swash plate pump: construction and working", "cross_family": false }, { "answer_id": "VDP-001", "score": 0.6510646343231201, "sibling_score": 0.6510646343231201, "answer_score": null, "sibling_qid": "KOL-2026-05-0080-Q005", "sibling_text": "variable delivery pump working types of variable delivery pump where fitted in engine room", "sibling_family": "", "via": "sibling", "answer_title": "Types and working principle of variable delivery pumps", "cross_family": false } ] }, { "qid": "MUM-2025-05-0273-Q014", "text": "Maker and Model number of T/C", "family": "", "subtopic": "", "tid": "MUM-2025-05-0273", "tray": "new", "candidates": [ { "answer_id": "TC-CONST-005", "score": 0.45643889904022217, "sibling_score": 0.45643889904022217, "answer_score": null, "sibling_qid": "MUM-2025-06-2328-Q003", "sibling_text": "t c compressor", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Compressor/blower side components and air flow", "cross_family": false }, { "answer_id": "TC-CONST-001", "score": 0.45114368200302124, "sibling_score": 0.45114368200302124, "answer_score": null, "sibling_qid": "MUM-2025-12-1227-Q006", "sibling_text": "types of t c", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharger types, series names, and ME/AE arrangements", "cross_family": false }, { "answer_id": "TCS-059-P04-001", "score": 0.4500674903392792, "sibling_score": 0.4500674903392792, "answer_score": null, "sibling_qid": "MUM-2025-05-0273-Q013", "sibling_text": "what kind of t c on your me", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharger construction and main parts", "cross_family": false } ] }, { "qid": "MUM-2025-05-0273-Q015", "text": "how many bearings and what kind of bearings", "family": "", "subtopic": "", "tid": "MUM-2025-05-0273", "tray": "new", "candidates": [ { "answer_id": "STT-BRG-008", "score": 0.5976570248603821, "sibling_score": 0.5976570248603821, "answer_score": null, "sibling_qid": "MUM-2026-03-2942-Q033", "sibling_text": "7 type of sturn tube bearing", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "7. Stern tube bearings — number, size, fixing, clearance, weardown and high-temperature", "cross_family": false }, { "answer_id": "ISB-435-004", "score": 0.5925232172012329, "sibling_score": 0.5925232172012329, "answer_score": 0.4744744598865509, "sibling_qid": "KOC-2025-11-1970-Q008", "sibling_text": "many bearings in intermediate shaft said 2 he accepted", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How many intermediate shaft bearings are there, and what sets the number?", "cross_family": false }, { "answer_id": "AE-CSB-346-001", "score": 0.5858457088470459, "sibling_score": 0.5858457088470459, "answer_score": null, "sibling_qid": "KOL-2020-07-1538-Q010", "sibling_text": "9 generator thrust bearing", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Thrust bearing in an auxiliary / generator engine — purpose and location", "cross_family": false } ] }, { "qid": "MUM-2025-05-0273-Q017", "text": "why we are measuring K value", "family": "", "subtopic": "", "tid": "MUM-2025-05-0273", "tray": "new", "candidates": [ { "answer_id": "TC-KLM-330-002", "score": 0.4888407588005066, "sibling_score": 0.4888407588005066, "answer_score": 0.4135819420218468, "sibling_qid": "CHE-2026-05-0615-Q005", "sibling_text": "k value of tc how to measure", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "What is the K value, why is it important, and what happens if it is wrong?", "cross_family": false }, { "answer_id": "TC-KLM-330-003", "score": 0.4862232506275177, "sibling_score": 0.4862232506275177, "answer_score": 0.4214546889066696, "sibling_qid": "MUM-2024-11-2256-Q003", "sibling_text": "procedure and reasons for finding k value of t c", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Finding the K value during overhaul — procedure, and the reasons for taking it", "cross_family": false }, { "answer_id": "GM-META-001", "score": 0.4438472092151642, "sibling_score": 0.4438472092151642, "answer_score": null, "sibling_qid": "KOL-2021-12-3997-Q003", "sibling_text": "how to get km value", "sibling_family": "", "via": "sibling", "answer_title": "Determining KB, BM, KM, KG and the stability chain", "cross_family": false } ] }, { "qid": "MUM-2025-05-0273-Q018", "text": "how is AE mounted ( Resilient mountings)? why resilient mountings if vibration less", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE Resilient Chock", "tid": "MUM-2025-05-0273", "tray": "new", "candidates": [ { "answer_id": "VIB-BAL-B-002", "score": 0.4986475110054016, "sibling_score": 0.4986475110054016, "answer_score": null, "sibling_qid": "MUM-2022-11-2717-Q006", "sibling_text": "axial vibrations arrangement to counter", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Axial vibration and the axial vibration damper", "cross_family": true }, { "answer_id": "VIB-BAL-A-004", "score": 0.49796940982341764, "sibling_score": 0.45624840259552, "answer_score": 0.49796940982341764, "sibling_qid": "MUM-2025-07-1142-Q004", "sibling_text": "main engine and auxiliary engine foundation vibration damper", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "answer_title", "answer_title": "VIB-A-04 — Mounting and foundation arrangements for main and auxiliary engines", "cross_family": true }, { "answer_id": "TR-TB-PA-006", "score": 0.49689075350761414, "sibling_score": 0.49689075350761414, "answer_score": null, "sibling_qid": "MUM-2026-03-1312-Q002", "sibling_text": "tie rod vibrations dampen arrangements", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Material, condition, fretting, vibration and elongation", "cross_family": true } ] }, { "qid": "MUM-2025-05-0273-Q021", "text": "what is log difference pressure ( never heard of this not even sure if this is what he asked)", "family": "", "subtopic": "", "tid": "MUM-2025-05-0273", "tray": "new", "candidates": [ { "answer_id": "IND-CARD-B-005", "score": 0.5626887679100037, "sibling_score": 0.5626887679100037, "answer_score": null, "sibling_qid": "KOL-2024-09-1951-Q002", "sibling_text": "pcomp pmax pressure difference", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Interpreting Pmax, Pcomp and compression / expansion-line abnormalities", "cross_family": false }, { "answer_id": "DP-TX-001", "score": 0.528150200843811, "sibling_score": 0.528150200843811, "answer_score": 0.4190996006131172, "sibling_qid": "KOL-2020-06-3981-Q003", "sibling_text": "differential pressure gauge how it works", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "DP cell / DP transmitter — working principle, construction and signal", "cross_family": false }, { "answer_id": "MAST-PVA-004", "score": 0.5112636089324951, "sibling_score": 0.5112636089324951, "answer_score": null, "sibling_qid": "MUM-2022-10-0054-Q003", "sibling_text": "terminal pressure setting why different", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "P/V valve & P/V breaker — pressure/vacuum settings and the basis", "cross_family": false } ] }, { "qid": "MUM-2025-05-0273-Q028", "text": "Main air compressor valves checks after overhaul?", "family": "Air Compressor", "subtopic": "Reciprocating Compressor", "tid": "MUM-2025-05-0273", "tray": "review", "candidates": [ { "answer_id": "MAC-353-003", "score": 0.7764670848846436, "sibling_score": 0.7764670848846436, "answer_score": 0.620370215177536, "sibling_qid": "MUM-2022-07-2136-Q007", "sibling_text": "main air compressor valve inspection", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Main air compressor suction / delivery valve inspection and overhaul", "cross_family": false }, { "answer_id": "REEF-COMP-008", "score": 0.7241153120994568, "sibling_score": 0.7241153120994568, "answer_score": null, "sibling_qid": "KOL-2026-05-4096-Q003", "sibling_text": "compressor valves to be replaced how to check and renew", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Valves, clearances, oil carry-over, refrigerant-in-oil, frosting, tandem valves, cooling — fault checks", "cross_family": false }, { "answer_id": "UNL-330-003", "score": 0.7224897146224976, "sibling_score": 0.7224897146224976, "answer_score": null, "sibling_qid": "KOC-2023-10-0984-Q005", "sibling_text": "checks on compressor unloader during overhaul", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "What checks are carried out on the compressor unloader during overhaul?", "cross_family": false } ] }, { "qid": "MUM-2025-05-0275-Q001", "text": "Cargo discharge criteria for tankers", "family": "MARPOL - Annex I (Oil)", "subtopic": "Oil Discharge Criteria", "tid": "MUM-2025-05-0275", "tray": "review", "candidates": [ { "answer_id": "ODC-008", "score": 0.7938308119773865, "sibling_score": 0.7938308119773865, "answer_score": 0.5656402826309204, "sibling_qid": "KOL-2021-07-0532-Q002", "sibling_text": "tanker discharge criteria", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Cargo-area discharge criteria for an oil tanker — outside a special area", "cross_family": false }, { "answer_id": "ODC-011", "score": 0.7559155821800232, "sibling_score": 0.7559155821800232, "answer_score": null, "sibling_qid": "CHE-2026-04-0518-Q002", "sibling_text": "explain cargo discharges criteria for oil tanker", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "The total quantity limit — 1/30,000 of what?", "cross_family": false }, { "answer_id": "AII-DISCH-001", "score": 0.7342233657836914, "sibling_score": 0.7342233657836914, "answer_score": null, "sibling_qid": "KOC-2023-03-1808-Q008", "sibling_text": "discharge criteria for tanker cargo space", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "State the MARPOL Annex II discharge criteria for NLS residues and tank washings", "cross_family": true } ] }, { "qid": "MUM-2025-05-0277-Q014", "text": "what arrangement is there in Auxiliary engines for rotation of camshaft.", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "", "tid": "MUM-2025-05-0277", "tray": "new", "candidates": [ { "answer_id": "AE-CRP-006", "score": 0.5735817551612854, "sibling_score": 0.5735817551612854, "answer_score": null, "sibling_qid": "MUM-2026-04-1319-Q006", "sibling_text": "what shape of conrod in auxiliary engine", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE connecting-rod design — section, serrations, oblique cut, whip loading", "cross_family": false }, { "answer_id": "ILK-318-006", "score": 0.5675299763679504, "sibling_score": 0.5675299763679504, "answer_score": 0.4806123971939087, "sibling_qid": "KOC-2026-05-0031-Q002", "sibling_text": "camshaft functions interlocks in me engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "6. 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"ETP-344-P03-001", "score": 0.6334300637245178, "sibling_score": 0.6334300637245178, "answer_score": null, "sibling_qid": "KOL-2026-03-2048-Q001", "sibling_text": "type of engine done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "EGTP-P02-005", "score": 0.6200124621391296, "sibling_score": 0.6200124621391296, "answer_score": 0.38994059860706326, "sibling_qid": "MUM-2026-06-3481-Q007", "sibling_text": "differentiate between mc and me engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "MC / MC-C / ME-C and Electronically Controlled Engines", "cross_family": false } ] }, { "qid": "MUM-2025-05-1111-Q006", "text": "3 nomenclature of engine", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2025-05-1111", "tray": "review", "candidates": [ { "answer_id": "ENG-NOM-005", "score": 0.7052481174468994, "sibling_score": 0.7052481174468994, "answer_score": 0.4628077685832977, "sibling_qid": "MUM-2026-05-3142-Q006", "sibling_text": "full nomenclature of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false }, { "answer_id": "ETP-344-P03-003", "score": 0.5151585221290588, "sibling_score": null, "answer_score": 0.5151585221290588, "sibling_qid": "", "sibling_text": "engine nomenclature layout mark number and engine constant designation order man b w cylinders stroke bore letter k l s g bore in cm m programme concept e electronic c camshaft design c compact b camshaft controlled exhaust hybrid mark number gi if gas injection tier rating stroke bore letters k short l long s super long g ultra long green the ratios are approximate design values not exact", "sibling_family": "", "via": "answer_title", "answer_title": "Engine nomenclature, layout, mark number and engine constant", "cross_family": false }, { "answer_id": "ENG-NOM-001", "score": 0.5099082171916961, "sibling_score": null, "answer_score": 0.5099082171916961, "sibling_qid": "", "sibling_text": "nomenclature of me and ae asked together main engine and auxiliary engine are decoded on different rules don t run one set of letters across both main engine man b w two stroke cylinders stroke letter bore in cm programme letter control letter then compact version", "sibling_family": "", "via": "answer_title", "answer_title": "Nomenclature of ME and AE (asked together)", "cross_family": false } ] }, { "qid": "MUM-2025-05-1111-Q009", "text": "6 ship specific ratio (350:1550) my ship.", "family": "", "subtopic": "", "tid": "MUM-2025-05-1111", "tray": "new", "candidates": [ { "answer_id": "PERF-470-008", "score": 0.45968931913375854, "sibling_score": 0.45968931913375854, "answer_score": 0.3881786078214645, "sibling_qid": "MUM-2025-08-2374-Q002S4", "sibling_text": "yours ships power to weight ratio", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Your ship's main-engine power-to-weight ratio", "cross_family": false }, { "answer_id": "SHELL-PLT-A-003", "score": 0.44770359992980957, "sibling_score": 0.44770359992980957, "answer_score": null, "sibling_qid": "KOC-2023-10-0224-Q006", "sibling_text": "6 hull construction of ur ship", "sibling_family": "", "via": "sibling", "answer_title": "The midship section — shell members you must mark", "cross_family": false }, { "answer_id": "ENG-NOM-004", "score": 0.44688722491264343, "sibling_score": 0.44688722491264343, "answer_score": null, "sibling_qid": "KOL-2025-06-1808-Q008", "sibling_text": "last ship engine type designation i told him 6s70 me c he asked what is 70", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Decode every letter and number: 6S60MC-C and 6S70ME-C", "cross_family": false } ] }, { "qid": "MUM-2025-05-1111-Q011", "text": "Bore relief in bearing", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Connecting Rod & Bearings", "tid": "MUM-2025-05-1111", "tray": "new", "candidates": [ { "answer_id": "WMAT-170-005", "score": 0.6047459244728088, "sibling_score": 0.6047459244728088, "answer_score": 0.4622728586196899, "sibling_qid": "MUM-2026-06-3652-Q013", "sibling_text": "bedding of bearing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bearing bedding and seating / contact assessment", "cross_family": true }, { "answer_id": "MN-BRG-C-002", "score": 0.604623556137085, "sibling_score": 0.604623556137085, "answer_score": null, "sibling_qid": "KOL-2022-08-3560-Q001", "sibling_text": "bedding of bearing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bedding, contact check and fitting of shells", "cross_family": true }, { "answer_id": "BRG-NOM-001", "score": 0.599626898765564, "sibling_score": 0.599626898765564, 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0.6615214943885803, "sibling_score": 0.6615214943885803, "answer_score": null, "sibling_qid": "KOL-2025-07-1999-Q005", "sibling_text": "attemperator in boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Desuperheater / attemperator: what, why, and superheat control", "cross_family": false }, { "answer_id": "BLR-TUBE-P01-003", "score": 0.6578342318534851, "sibling_score": 0.6578342318534851, "answer_score": null, "sibling_qid": "CHE-2026-05-0613-Q004", "sibling_text": "expansion arrangement boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "02. Thermal expansion arrangements for boiler tubes", "cross_family": false } ] }, { "qid": "MUM-2025-05-1111-Q013", "text": "10 boiler mounting arrangement (foundation)", "family": "Boilers - Construction & Components", "subtopic": "Hull Mounting / Securing", "tid": "MUM-2025-05-1111", "tray": "review", "candidates": [ { "answer_id": "FURN-REF-004", "score": 0.7370856404304504, "sibling_score": 0.7370856404304504, "answer_score": null, "sibling_qid": "KOL-2025-06-1808-Q004", "sibling_text": "boiler furnace mountings", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Boiler furnace construction, corrugation, swirl / contraction and furnace mountings", "cross_family": false }, { "answer_id": "BLR-TUBE-P01-003", "score": 0.638938844203949, "sibling_score": 0.638938844203949, "answer_score": null, "sibling_qid": "KOL-2021-09-1625-Q003", "sibling_text": "boiler tube expansion arrangement in combustion space", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "02. Thermal expansion arrangements for boiler tubes", "cross_family": false }, { "answer_id": "BLR-DRUM-008", "score": 0.6265830397605896, "sibling_score": 0.6265830397605896, "answer_score": 0.5272836208343505, "sibling_qid": "KOL-2022-07-1698-Q003", "sibling_text": "how boiler supported to ship structure", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "How a boiler is supported to the ship structure", "cross_family": false } ] }, { "qid": "MUM-2025-05-1111-Q014", "text": "11 speciality of boiler save wall tray with pump (i said it doesn't have a drain and they accepted)", "family": "", "subtopic": "", "tid": "MUM-2025-05-1111", "tray": "new", "candidates": [ { "answer_id": "VENT-HD-008", "score": 0.5415728092193604, "sibling_score": 0.5415728092193604, "answer_score": null, "sibling_qid": "MUM-2024-07-0187-Q007", "sibling_text": "er double bottom fuel oil tank vent didn t accept flame trap and nr arrangement wanted something else", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Compare ballast, bunker and fuel tank vent-head arrangements and fittings", "cross_family": false }, { "answer_id": "SOX-LIMIT-003", "score": 0.5356353521347046, "sibling_score": 0.5356353521347046, "answer_score": null, "sibling_qid": "KOL-2019-04-0277-Q006", "sibling_text": "also asked about special arrangement in scrubber tower drain", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Controlling SOx onboard — compliant fuel, scrubbers, alternatives", "cross_family": false }, { "answer_id": "EGB-001", "score": 0.5241482257843018, "sibling_score": 0.5241482257843018, "answer_score": null, "sibling_qid": "MUM-2026-03-2614-Q003", "sibling_text": "boiler water washing what will you check he wanted to listen open the drain and check for exhaust gas leak or not", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "The exhaust gas boiler tubes are leaking — indications, how you confirm it, your action as 2/E, and what you do when plugging is not enough and the engine cannot be stopped.", "cross_family": false } ] }, { "qid": "MUM-2025-05-1111-Q018", "text": "when engine is stopped what kind of lubrication is there and specific additive used to enhance its property.", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Bearings / Lubrication", "tid": "MUM-2025-05-1111", "tray": "review", "candidates": [ { "answer_id": "LO-TEST-P02-001", "score": 0.737037718296051, "sibling_score": 0.737037718296051, "answer_score": 0.5267830103635788, "sibling_qid": "MUM-2026-09-3999-Q003", "sibling_text": "additive in lube oil", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Lube-oil additives; detergency, dispersancy, lubricity and friction modifiers", "cross_family": false }, { "answer_id": "CYL-LUB-B-002", "score": 0.7048516869544983, "sibling_score": 0.7048516869544983, "answer_score": 0.486450657248497, "sibling_qid": "KOL-2020-02-1517-Q010", "sibling_text": "cylinder lubrication type cyl lub oil properties and additives", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Cylinder oil — required properties; can any oil be used?", "cross_family": false }, { "answer_id": "LO-TEST-P01-005", "score": 0.6973889470100403, "sibling_score": 0.6973889470100403, "answer_score": 0.5171049296855926, "sibling_qid": "MUM-2026-09-3999-Q004", "sibling_text": "synthetic and mineral lube oil", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Lube-oil properties, types and selection by duty", "cross_family": false } ] }, { "qid": "MUM-2025-05-1112-Q001", "text": "Type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-05-1112", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8362665176391602, "sibling_score": 0.8362665176391602, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8014071583747864, "sibling_score": 0.8014071583747864, "answer_score": 0.5467351317405701, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.7999894022941589, "sibling_score": 0.7999894022941589, "answer_score": 0.5214929342269897, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2025-05-1112-Q002", "text": "Engine", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2025-05-1112", "tray": "review", "candidates": [ { "answer_id": "MIP-264-003", "score": 0.800467312335968, "sibling_score": 0.800467312335968, "answer_score": null, "sibling_qid": "MUM-2026-01-1248-Q002", "sibling_text": "engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Calculate engine power: IHP and BHP, and where each is measured", "cross_family": false }, { "answer_id": "ETP-344-P03-001", "score": 0.7163598537445068, "sibling_score": 0.7163598537445068, "answer_score": null, "sibling_qid": "KOL-2026-03-2048-Q001", "sibling_text": "type of engine done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "MCC-MEB-P02-003", "score": 0.7007127404212952, "sibling_score": 0.7007127404212952, "answer_score": null, "sibling_qid": "MUM-2024-07-1084-Q004", "sibling_text": "me engine tha", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Conventional MC / MC-C versus electronic ME — the practical operating differences", "cross_family": true } ] }, { "qid": "MUM-2025-05-1117-Q001", "text": "Months of sailing experience", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-05-1117", "tray": "new", "candidates": [ { "answer_id": "STCW-MAN-009", "score": 0.53739994764328, "sibling_score": 0.53739994764328, "answer_score": null, "sibling_qid": "KOC-2025-07-0631-Q008", "sibling_text": "what courses to be done to sail on passenger ships", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What additional STCW courses must you do as Second Engineer to join a passenger ship?", "cross_family": true }, { "answer_id": "ISMNC-006", "score": 0.5356192588806152, "sibling_score": 0.5356192588806152, "answer_score": null, "sibling_qid": "MUM-2026-08-3831-Q006", "sibling_text": "sailing with mnc and what to do", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Your ship has been issued a major non-conformity: what action do you take, what are the repercussions, and can the ship sail with it?", "cross_family": true }, { "answer_id": "BM-SF-CF-003", "score": 0.520780622959137, "sibling_score": 0.520780622959137, "answer_score": null, "sibling_qid": "MUM-2026-02-0790-Q004", "sibling_text": "ship experience forces", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Forces on a ship that produce shear force and bending moment", "cross_family": true } ] }, { "qid": "MUM-2025-05-1117-Q002", "text": "Types of ship, Types of ME and AE done", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "MUM-2025-05-1117", "tray": "review", "candidates": [ { "answer_id": "LLST-AB-001", "score": 0.7166926860809326, "sibling_score": 0.7166926860809326, "answer_score": 0.4385844230651855, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.7159652709960938, "sibling_score": 0.7159652709960938, "answer_score": null, "sibling_qid": "MUM-2026-02-1280-Q001", "sibling_text": "type of ship done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.673712968826294, "sibling_score": 0.673712968826294, "answer_score": 0.421227790415287, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2025-05-1117-Q003", "text": "ME specs and cross questions", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2025-05-1117", "tray": "new", "candidates": [ { "answer_id": "A6-NSEC-005", "score": 0.5595477819442749, "sibling_score": 0.5595477819442749, "answer_score": null, "sibling_qid": "MUM-2024-11-0222-Q002", "sibling_text": "seemp all parts cross questions", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP — Part I, II & III", "cross_family": true }, { "answer_id": "RES-PROP-P02-001", "score": 0.5538263320922852, "sibling_score": 0.5538263320922852, "answer_score": null, "sibling_qid": "KOL-2024-10-0871-Q001", "sibling_text": "model test and cross questions", "sibling_family": "", "via": "sibling", "answer_title": "Ship model and towing tests — purpose, scaling and resistance prediction", "cross_family": false }, { "answer_id": "EEZ-PSSA-002", "score": 0.5498601198196411, "sibling_score": 0.5498601198196411, "answer_score": null, "sibling_qid": "KOL-2021-01-0454-Q004", "sibling_text": "definition of speci area and cross questions", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "MARPOL special area — definition, the annexes, the names, the Annex I rule", "cross_family": true } ] }, { "qid": "MUM-2025-05-1117-Q004", "text": "ME engine features and cross questions", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2025-05-1117", "tray": "review", "candidates": [ { "answer_id": "MCC-MEB-P02-004", "score": 0.6509877443313599, "sibling_score": 0.6509877443313599, "answer_score": null, "sibling_qid": "CHE-2025-08-0175-Q001", "sibling_text": "advantages of me engines and cross questions", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What an intelligent (smart) ME engine is, and why owners prefer it", "cross_family": true }, { "answer_id": "MCC-MEB-P02-003", "score": 0.6090039014816284, "sibling_score": 0.6090039014816284, "answer_score": null, "sibling_qid": "MUM-2026-02-1258-Q007", "sibling_text": "differentiate between mc and me engine like what component s in mc absent cross cross questions", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Conventional MC / MC-C versus electronic ME — the practical operating differences", "cross_family": true }, { "answer_id": "MCC-MEB-P01-001", "score": 0.5651451349258423, "sibling_score": 0.5651451349258423, "answer_score": null, "sibling_qid": "KOL-2018-08-1402-Q005", "sibling_text": "mc mcc engine developments crossquestions", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "MC-C (\"Compact\") engine — design and the main constructional differences from MC", "cross_family": true } ] }, { "qid": "MUM-2025-05-1117-Q005", "text": "Why Con rod of AE cross section is in I section,What is Young’s modulus?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Connecting Rod & Bolts", "tid": "MUM-2025-05-1117", "tray": "review", "candidates": [ { "answer_id": "CRB-006", "score": 0.69429612159729, "sibling_score": 0.69429612159729, "answer_score": 0.5012121558189392, "sibling_qid": "MUM-2025-12-1237-Q004", "sibling_text": "con rod i section what is section modulus", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Why is the connecting rod made I-section (or H-section)? Explain section modulus and Young's modulus.", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.5305178165435791, "sibling_score": 0.5305178165435791, "answer_score": null, "sibling_qid": "MUM-2024-08-1089-Q004", "sibling_text": "cross sectional difference between me and ae con rods", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": true }, { "answer_id": "AECR-651-001", "score": 0.4882771968841553, "sibling_score": 0.4882771968841553, "answer_score": null, "sibling_qid": "MUM-2022-12-1037-Q023", "sibling_text": "checks on con rod of ae", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What checks do you carry out on the connecting rod of an AE / DG — inspection, overhaul checks and the trueness check?", "cross_family": false } ] }, { "qid": "MUM-2025-05-1117-Q006", "text": "What all stresses acting on AE connecting rod?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Connecting Rod / Bearings", "tid": "MUM-2025-05-1117", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-004", "score": 0.6793480515480042, "sibling_score": 0.6793480515480042, "answer_score": null, "sibling_qid": "CHE-2026-08-3897-Q004", "sibling_text": "connecting rod checks in details", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE connecting-rod inspection — ovality, trueness, serrations, action if out of limit", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.6402789950370789, "sibling_score": 0.6402789950370789, "answer_score": null, "sibling_qid": "CHE-2026-08-3865-Q003", "sibling_text": "ae connecting rod bolt checks", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "CRK-DEFL-001", "score": 0.6230582594871521, "sibling_score": 0.6230582594871521, "answer_score": null, "sibling_qid": "CHE-2026-05-0648-Q005", "sibling_text": "stresses on crank shaft not accepting any stress", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Purpose, timing and scope of crankshaft deflection", "cross_family": true } ] }, { "qid": "MUM-2025-05-1118-Q001", "text": "type of engine worked on", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2025-05-1118", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.782564103603363, "sibling_score": 0.782564103603363, "answer_score": null, "sibling_qid": "KOL-2026-03-2048-Q001", "sibling_text": "type of engine done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "MCC-MEB-P01-001", "score": 0.7580154538154602, "sibling_score": 0.7580154538154602, "answer_score": null, "sibling_qid": "MUM-2026-09-3997-Q002", "sibling_text": "type of engine worked me mcc me b and rta", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "MC-C (\"Compact\") engine — design and the main constructional differences from MC", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.7438655495643616, "sibling_score": 0.7438655495643616, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false } ] }, { "qid": "MUM-2025-05-1123-Q001", "text": "Type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-05-1123", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8362665176391602, "sibling_score": 0.8362665176391602, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8014071583747864, "sibling_score": 0.8014071583747864, "answer_score": 0.5467351317405701, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.7999894022941589, "sibling_score": 0.7999894022941589, "answer_score": 0.5214929342269897, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2025-05-1123-Q002", "text": "Engine", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2025-05-1123", "tray": "review", "candidates": [ { "answer_id": "MIP-264-003", "score": 0.800467312335968, "sibling_score": 0.800467312335968, "answer_score": null, "sibling_qid": "MUM-2026-01-1248-Q002", "sibling_text": "engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Calculate engine power: IHP and BHP, and where each is measured", "cross_family": false }, { "answer_id": "ETP-344-P03-001", "score": 0.7163598537445068, "sibling_score": 0.7163598537445068, "answer_score": null, "sibling_qid": "KOL-2026-03-2048-Q001", "sibling_text": "type of engine done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "MCC-MEB-P02-003", "score": 0.7007127404212952, "sibling_score": 0.7007127404212952, "answer_score": null, "sibling_qid": "MUM-2024-07-1084-Q004", "sibling_text": "me engine tha", "sibling_family": "2-Stroke - 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Generator & Alternator", "via": "sibling", "answer_title": "Generator started but no voltage developing — reasons, and your action as Second Engineer", "cross_family": false }, { "answer_id": "RES-MAG-003", "score": 0.5603452920913696, "sibling_score": null, "answer_score": 0.5603452920913696, "sibling_qid": "", "sibling_text": "after 2 months in drydock or laid up generator started no voltage why two separate failure paths after a lay up damp insulation and decayed or lost remanence prove insulation first megger before you flash applying normal uncontrolled excitation to damp windings is how a drying job becomes a rewind", "sibling_family": "", "via": "answer_title", "answer_title": "After 2 months in drydock or laid up — generator started, no voltage. Why?", "cross_family": false } ] }, { "qid": "MUM-2025-05-1495-Q002", "text": "How is Soft starter superior over star delta?", "family": "Electrical - Motors & Starters", "subtopic": "Soft Starter", "tid": "MUM-2025-05-1495", "tray": "review", "candidates": [ { "answer_id": "SOFTSTART-P03-001", "score": 0.7898051142692566, "sibling_score": 0.7898051142692566, "answer_score": 0.5638598501682281, "sibling_qid": "MUM-2026-06-3636-Q001", "sibling_text": "soft starter advantage over star delta starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Star-delta starter versus soft starter", "cross_family": false }, { "answer_id": "SDST-A-001", "score": 0.6837542653083801, "sibling_score": 0.6837542653083801, "answer_score": null, "sibling_qid": "KOC-2025-03-1504-Q004", "sibling_text": "star delta starter advantages", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false }, { "answer_id": "SOFTSTART-P02-004", "score": 0.5323635429143906, "sibling_score": null, "answer_score": 0.5323635429143906, "sibling_qid": "", "sibling_text": "soft starter advantages and disadvantages adv smooth stepless acceleration reduced starting current representative 3 4 flc vs 6 8 dol actual value is set on the unit adv less supply voltage dip easier on generators less light flicker and lower nuisance trip risk", "sibling_family": "", "via": "answer_title", "answer_title": "Soft starter — advantages and disadvantages", "cross_family": false } ] }, { "qid": "MUM-2025-05-1497-Q004", "text": "how induction motor rotates( explain everything but he was looking for Lenz law - I couldn't collect it - he said it's basic you should know- only reason didn't get function 5)", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Faraday Law", "tid": "MUM-2025-05-1497", "tray": "review", "candidates": [ { "answer_id": "IM-TSS-P01-002", "score": 0.7041982412338257, "sibling_score": 0.7041982412338257, "answer_score": 0.6319212913513184, "sibling_qid": "KOC-2022-11-1211-Q010", "sibling_text": "how rotor of induction motor rotate tell all the laws and explain it", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Torque production, rotor rotation and load response", "cross_family": true }, { "answer_id": "ROT-STAT-A-002", "score": 0.701392412185669, "sibling_score": 0.701392412185669, "answer_score": 0.5203101336956024, "sibling_qid": "KOC-2024-06-1363-Q003", "sibling_text": "how induction motor rotor rotates how rotating magnetic field produced on stator winding", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Rotor and stator construction of a three-phase induction motor", "cross_family": true }, { "answer_id": "IM-PWC-001", "score": 0.6784921288490295, "sibling_score": 0.6784921288490295, "answer_score": 0.5896304726600646, "sibling_qid": "KOL-2019-10-2345-Q004", "sibling_text": "principle of operation of induction motor 5 external sarkar internal chowdhury", "sibling_family": "Electrical - 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Procedure?", "family": "Electrical - Generator & Alternator", "subtopic": "Blackout Test", "tid": "MUM-2025-05-1501", "tray": "review", "candidates": [ { "answer_id": "BOT-001", "score": 0.8000651001930237, "sibling_score": 0.8000651001930237, "answer_score": 0.47832096815109254, "sibling_qid": "MUM-2026-06-3464-Q004", "sibling_text": "psc wants blackout test procedure", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "How do you carry out and demonstrate the blackout test in front of the surveyor — procedure, simulation, precautions before simulating, and what happens to machinery on the emergency switchboard?", "cross_family": false }, { "answer_id": "EMCY-DG-P03-004", "score": 0.5835016965866089, "sibling_score": 0.5835016965866089, "answer_score": 0.4108889251947403, "sibling_qid": "KOC-2025-02-1487-Q006", "sibling_text": "explain sequence after blackout", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Blackout sequence — starting the set and taking load back", "cross_family": false }, { "answer_id": "PTRIP-BO-001", "score": 0.46742725670337676, "sibling_score": null, "answer_score": 0.46742725670337676, "sibling_qid": "", "sibling_text": "blackout test how would you carry it out purpose prove the whole chain emergency generator auto start and connection within 45 seconds standby generator auto start and sequential restart before a real blackout tests it for you permission first chief engineer s authority bridge and master informed safe conditions only in port or open sea never manoeuvring or restricted waters", "sibling_family": "", "via": "answer_title", "answer_title": "Blackout test — how would you carry it out?", "cross_family": false } ] }, { "qid": "MUM-2025-05-1504-Q001", "text": "Types of timer", "family": "", "subtopic": "", "tid": "MUM-2025-05-1504", "tray": "review", "candidates": [ { "answer_id": "AUC-PLC-06", "score": 0.7417930364608765, "sibling_score": 0.7417930364608765, "answer_score": 0.5013057827949524, "sibling_qid": "MUM-2026-05-3336-Q001", "sibling_text": "types of timer", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Timers in control circuits — types, technologies and shipboard uses", "cross_family": false }, { "answer_id": "SDST-B-001", "score": 0.6108883619308472, "sibling_score": 0.6108883619308472, "answer_score": null, "sibling_qid": "CHE-2025-08-0292-Q005", "sibling_text": "working of timers", "sibling_family": "Electrical - 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Motors & Starters", "via": "sibling", "answer_title": "Faults in a motor contactor", "cross_family": false }, { "answer_id": "CONT-317-003", "score": 0.6707534193992615, "sibling_score": 0.6707534193992615, "answer_score": 0.4972386837005615, "sibling_qid": "MUM-2023-09-1401-Q004", "sibling_text": "motor overhauled how to do star connection how to check continuity", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Continuity to confirm terminal identity after overhaul or rewind", "cross_family": false } ] }, { "qid": "MUM-2025-05-1522-Q008", "text": "Steering gear motor safety", "family": "Electrical - Motors & Starters", "subtopic": "STEERING GEAR MOTOR-ELECTRICAL", "tid": "MUM-2025-05-1522", "tray": "review", "candidates": [ { "answer_id": "SGM-ELEC-001", "score": 0.8186370134353638, "sibling_score": 0.8186370134353638, "answer_score": 0.560588276386261, "sibling_qid": "CHE-2026-02-0333-Q006", "sibling_text": "steering gear motor safeties", "sibling_family": "Electrical - 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Annex VI (Air & GHG)", "subtopic": "EEDI / EEXI / CII / SEEMP", "tid": "MUM-2025-05-1522", "tray": "review", "candidates": [ { "answer_id": "EECS-001", "score": 0.6730848550796509, "sibling_score": 0.6730848550796509, "answer_score": null, "sibling_qid": "MUM-2024-09-0203-Q002", "sibling_text": "eexi eedi differences", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "01. Differentiate EEDI and EEXI — formula and units of each", "cross_family": false }, { "answer_id": "EECS-002", "score": 0.6333776712417603, "sibling_score": 0.6333776712417603, "answer_score": 0.30733614712953566, "sibling_qid": "CHE-2026-02-0104-Q006", "sibling_text": "eexi cii difference", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "02. Differentiate EEXI and CII", "cross_family": false }, { "answer_id": "EEDI-C-001", "score": 0.5800163149833679, "sibling_score": 0.5800163149833679, "answer_score": 0.40672596991062165, "sibling_qid": "CHE-2026-09-3924-Q005", "sibling_text": "eexi vs exedi vs eeoi", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "EEDI versus EEXI — what is the difference?", "cross_family": false } ] }, { "qid": "MUM-2025-05-1522-Q012", "text": "Where use EXi, why cannot we use Exi for light fittings circuit", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "MUM-2025-05-1522", "tray": "new", "candidates": [ { "answer_id": "ELEC-ELX-001", "score": 0.46268314123153687, "sibling_score": 0.46268314123153687, "answer_score": 0.35838759839534756, "sibling_qid": "MUM-2026-02-1919-Q003", "sibling_text": "florescent light circuit", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Fluorescent and LED tube-light — choke and starter", "cross_family": false }, { "answer_id": "EXD-EXI-A-002", "score": 0.46009746193885803, "sibling_score": 0.46009746193885803, "answer_score": null, "sibling_qid": "KOL-2026-05-0068-Q001", "sibling_text": "flame proof and explosion proof light fittings", "sibling_family": "", "via": "sibling", "answer_title": "Ex d (flameproof / explosion-proof) — construction, shipboard applications and maintenance", "cross_family": false }, { "answer_id": "EEXI-001", "score": 0.44561493396759033, "sibling_score": 0.44561493396759033, "answer_score": null, "sibling_qid": "KOL-2022-09-4012-Q007", "sibling_text": "eexi intrinsic safe circuit cross qsns", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is EEXI? 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Shell / deck plate repair and renewal in dry dock (class context)", "cross_family": false }, { "answer_id": "CABLE-INS-C-002", "score": 0.5257905721664429, "sibling_score": 0.5257905721664429, "answer_score": 0.35241366028785703, "sibling_qid": "KOL-2017-03-2122-Q002", "sibling_text": "laying up cable from e r to fwd", "sibling_family": "", "via": "sibling", "answer_title": "Cable laying, routing & watertight-bulkhead penetration", "cross_family": false } ] }, { "qid": "MUM-2025-05-1525-Q004", "text": "cable.", "family": "", "subtopic": "", "tid": "MUM-2025-05-1525", "tray": "review", "candidates": [ { "answer_id": "CABLE-INS-E-005", "score": 0.6837278604507446, "sibling_score": 0.6837278604507446, "answer_score": null, "sibling_qid": "MUM-2025-11-1770-Q009", "sibling_text": "cables", "sibling_family": "", "via": "sibling", "answer_title": "Cable properties, safety, standards and condition", "cross_family": false }, { "answer_id": "CABLE-INSUL-D-001", "score": 0.651918888092041, "sibling_score": 0.651918888092041, "answer_score": null, "sibling_qid": "MUM-2025-08-1578-Q011", "sibling_text": "cable material", "sibling_family": "", "via": "sibling", "answer_title": "Insulation: materials, classes and required properties", "cross_family": false }, { "answer_id": "CBL-INS-A-001", "score": 0.6392408609390259, "sibling_score": 0.6392408609390259, "answer_score": null, "sibling_qid": "KOC-2024-05-1358-Q001", "sibling_text": "cable standard", "sibling_family": "", "via": "sibling", "answer_title": "IEC / marine cable standards used for shipboard cables", "cross_family": false } ] }, { "qid": "MUM-2025-05-2282-Q001S2", "text": "Mac bumping clearance ?", "family": "Air Compressor", "subtopic": "MAC / Air Compressor", "tid": "MUM-2025-05-2282", "tray": "new", "candidates": [ { "answer_id": "AC-VE-005", "score": 0.5376962423324585, "sibling_score": 0.5376962423324585, "answer_score": 0.2991870790719986, "sibling_qid": "MUM-2026-05-3276-Q004", "sibling_text": "how to take bumping clearance", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "If bumping clearance is more or less, what happens, and how do you reduce or adjust it?", "cross_family": false }, { "answer_id": "MAC-353-012", "score": 0.49540507793426514, "sibling_score": 0.49540507793426514, "answer_score": null, "sibling_qid": "CHE-2026-05-0529-Q007", "sibling_text": "mac checks after overhaul", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Checks carried out on the main air compressor after overhaul", "cross_family": false }, { "answer_id": "RUN-CLR-002", "score": 0.4869125187397003, "sibling_score": 0.4869125187397003, "answer_score": 0.2939839169383049, "sibling_qid": "MUM-2024-12-2263-Q003", "sibling_text": "bumping clearances adjustments three methods could answer only two", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Bumping clearance — what it is, why it matters, effects, and how it is adjusted", "cross_family": true } ] }, { "qid": "MUM-2025-05-2282-Q001S6", "text": "Third engineer press the engineers call and you come down and see that your engine room is flooded till bottom platform and it tells you that seawater leaking in main line your actions as a second engineer ?", "family": "", "subtopic": "", "tid": "MUM-2025-05-2282", "tray": "review", "candidates": [ { "answer_id": "SEA-CHEST-006", "score": 0.7840403914451599, "sibling_score": 0.7840403914451599, "answer_score": null, "sibling_qid": "MUM-2026-01-2529-Q004", "sibling_text": "3 e raised engineer call and he s on bottom platform water has reached above bottom reason is leak has happened in common sea chest valve your action as 2e", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "2/E actions: leak, crack, fouling, stuck valve, valve-life", "cross_family": false }, { "answer_id": "CAS-ESTOP-001", "score": 0.7762517929077148, "sibling_score": 0.7762517929077148, "answer_score": 0.6255764424800873, "sibling_qid": "MUM-2025-07-2814-Q010", "sibling_text": "engine room flooding 3e gave engineer call alarm your 1st action as 2e", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Engine-room flooding / rapidly rising bilges — immediate action as 2/E", "cross_family": false }, { "answer_id": "PHL-001", "score": 0.7353835701942444, "sibling_score": 0.7353835701942444, "answer_score": 0.6132499039173126, "sibling_qid": "MUM-2024-12-2262-Q004", "sibling_text": "main sea water line suction like leak and bottom platform full of water what will you do", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "There is a hole in a line — bilge suction main, sea-water line, starting-air line or steam line: your action as 2/E, and how you find the exact location", "cross_family": false } ] }, { "qid": "MUM-2025-05-2282-Q001S7", "text": "Third Engr suspects that there is a hole in bilge line how will you proceed to find the hole", "family": "", "subtopic": "", "tid": "MUM-2025-05-2282", "tray": "review", "candidates": [ { "answer_id": "PHL-001", "score": 0.733697235584259, "sibling_score": 0.733697235584259, "answer_score": 0.5616351455450058, "sibling_qid": "MUM-2025-09-2409-Q004", "sibling_text": "how to find hole in bilge line", "sibling_family": "Pumps - 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Side-shell hole or hull breach at the waterline: emergency action and repair", "cross_family": false } ] }, { "qid": "MUM-2025-05-2285-Q002", "text": "Torque spanner calibration? Unit?", "family": "Gauges & Tools", "subtopic": "Torque Wrench / Torque Spanner", "tid": "MUM-2025-05-2285", "tray": "review", "candidates": [ { "answer_id": "MICR-002", "score": 0.7314197421073914, "sibling_score": 0.7314197421073914, "answer_score": 0.4542521476745605, "sibling_qid": "MUM-2026-05-2998-Q007", "sibling_text": "how will you calibrate torque wrench onboard", "sibling_family": "Gauges & Tools", "via": "sibling", "answer_title": "Zero setting, calibration, error check and trueness", "cross_family": false }, { "answer_id": "RES-PROP-P02-004", "score": 0.6497666835784912, "sibling_score": 0.6497666835784912, "answer_score": null, "sibling_qid": "KOC-2025-11-2083-Q004", "sibling_text": "torsional meter working", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Ship power definitions and estimation — effective, delivered, shaft and indicated power", "cross_family": true }, { "answer_id": "MICR-003", "score": 0.6355193257331848, "sibling_score": 0.6355193257331848, "answer_score": null, "sibling_qid": "MUM-2026-02-2580-Q005", "sibling_text": "how to check the tool is properly calibrated", "sibling_family": "Gauges & Tools", "via": "sibling", "answer_title": "Cylinder liner calibration with the inside micrometer", "cross_family": false } ] }, { "qid": "MUM-2025-05-2288-Q001", "text": "Why ref comp C/Case connected to suction line", "family": "Refrigeration & AC", "subtopic": "Refer Safety", "tid": "MUM-2025-05-2288", "tray": "new", "candidates": [ { "answer_id": "REEF-COMP-008", "score": 0.5055363178253174, "sibling_score": 0.5055363178253174, "answer_score": null, "sibling_qid": "KOL-2020-02-3320-Q003", "sibling_text": "suction vv of ref compressor leaking how to find", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Valves, clearances, oil carry-over, refrigerant-in-oil, frosting, tandem valves, cooling — fault checks", "cross_family": false }, { "answer_id": "AIR-REF-002", "score": 0.4950851500034332, "sibling_score": 0.4950851500034332, "answer_score": 0.33668179512023927, "sibling_qid": "KOL-2025-08-3849-Q003", "sibling_text": "air in the ref system from where it is coming", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "2. How air enters a refrigeration system", "cross_family": false }, { "answer_id": "AIR-REF-004", "score": 0.4772603511810303, "sibling_score": 0.4772603511810303, "answer_score": null, "sibling_qid": "MUM-2025-01-2790-Q006", "sibling_text": "air venting of ref", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "4. Detecting and purging air from a refrigeration system", "cross_family": false } ] }, { "qid": "MUM-2025-05-2288-Q006", "text": "Suppose you are pumping out aft bilge well through OWS, but level not coming down. What are the reasons?", "family": "Fault Diagnosis & 2/E Actions", "subtopic": "Fault Diagnosis / 2E Action", "tid": "MUM-2025-05-2288", "tray": "review", "candidates": [ { "answer_id": "OWS-15PPM-005", "score": 0.7740246057510376, "sibling_score": 0.7740246057510376, "answer_score": 0.5278899669647217, "sibling_qid": "MUM-2025-05-2295-Q011", "sibling_text": "aft bilge is lined up for ows and after hours of running you find no change in level reason", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": true }, { "answer_id": "ODC-018", "score": 0.7168952226638794, "sibling_score": 0.7168952226638794, "answer_score": 0.6475700676441193, "sibling_qid": "MUM-2025-05-2290-Q004", "sibling_text": "er aft bilge well full of water you started ows after permission from ce after running for some time u noticed water level is not going down what can be the reason and actions u will take x que", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "OWS running but the bilge well is not going down — fault diagnosis", "cross_family": true }, { "answer_id": "PPS-622-004", "score": 0.6925613284111023, "sibling_score": 0.6925613284111023, "answer_score": 0.5386561572551727, "sibling_qid": "KOL-2025-03-3751-Q003", "sibling_text": "your bilge pump is not taking suction from a particular bilge well filters are clean other bilge wells it is taking suction what will you do", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "The bilge or ballast pump is not taking suction — reasons, how to identify the problem, how to rectify it. What does the suction gauge read, and what is suction head?", "cross_family": true } ] }, { "qid": "MUM-2025-05-2288-Q007", "text": "Cleared both functions, one more to go.", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-05-2288", "tray": "review", "candidates": [ { "answer_id": "A6-NSEC-003", "score": 0.6761878728866577, "sibling_score": 0.6761878728866577, "answer_score": null, "sibling_qid": "CHE-2024-10-0010-Q001", "sibling_text": "nox reduction methods got both functions finally cleared class", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "NOx — formation, limits & reduction (SCR / EGR)", "cross_family": true }, { "answer_id": "IMO-CODES-P03-002", "score": 0.5538708567619324, "sibling_score": 0.5538708567619324, "answer_score": null, "sibling_qid": "MUM-2026-03-0815-Q003", "sibling_text": "which function", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": false }, { "answer_id": "CPFE-583-012", "score": 0.5484675765037537, "sibling_score": 0.5484675765037537, "answer_score": null, "sibling_qid": "KOC-2022-01-1777-Q010", "sibling_text": "framo seal arrangement cleared both functions", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Seal arrangement, cofferdam, and how leakage is detected", "cross_family": true } ] }, { "qid": "MUM-2025-05-2289-Q003", "text": "V-belt checks for usage", "family": "Auxiliary Equipment", "subtopic": "General Auxiliary Machinery", "tid": "MUM-2025-05-2289", "tray": "new", "candidates": [ { "answer_id": "WIND-WNCH-010", "score": 0.4323972463607788, "sibling_score": 0.4323972463607788, "answer_score": null, "sibling_qid": "MUM-2025-02-0967-Q009", "sibling_text": "checks on windlass", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Survey prep, checks, routines and maintenance", "cross_family": false }, { "answer_id": "VFD-INV-P01-002", "score": 0.4283502697944641, "sibling_score": 0.4283502697944641, "answer_score": null, "sibling_qid": "KOC-2025-01-1477-Q003", "sibling_text": "vfd explain where all used specify", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Where is a VFD used onboard, and why?", "cross_family": true }, { "answer_id": "REEF-COMP-005", "score": 0.4158346354961395, "sibling_score": 0.4158346354961395, "answer_score": 0.3149279624223709, "sibling_qid": "KOL-2021-02-3375-Q007", "sibling_text": "why v belt is used how many usually fitted what specifications are on that name it and explain", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "V-belt drive on reefer compressors — why, and checking condition, alignment, tension, replacement", "cross_family": true } ] }, { "qid": "MUM-2025-05-2291-Q002", "text": "Oil in observation tank, action", "family": "Boilers - Construction & Components", "subtopic": "Cascade Tank / Condenser", "tid": "MUM-2025-05-2291", "tray": "review", "candidates": [ { "answer_id": "CASC-COND-001", "score": 0.7211508750915527, "sibling_score": 0.7211508750915527, "answer_score": 0.5351918071508407, "sibling_qid": "MUM-2026-03-2642-Q007", "sibling_text": "oil sheen in observation tank actions", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Oil found in the cascade tank, hotwell or observation tank — actions, tracing the source, and preventing ingress", "cross_family": true }, { "answer_id": "CASC-COND-005", "score": 0.6801603436470032, "sibling_score": 0.6801603436470032, "answer_score": 0.4752295047044754, "sibling_qid": "MUM-2025-07-2815-Q009", "sibling_text": "boiler observation tank have oil action", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Why there is an observation tank and where it is, and the cascade tank and cascade system explained", "cross_family": false }, { "answer_id": "SOPEP-003", "score": 0.6645050048828125, "sibling_score": 0.6645050048828125, "answer_score": null, "sibling_qid": "MUM-2026-03-2639-Q002", "sibling_text": "you are 2 e on ship you see oil shin in cascase tank your action", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Oil Spill and Bunkering-Spill Response under the SOPEP", "cross_family": true } ] }, { "qid": "MUM-2025-05-2291-Q003", "text": "Diff between spring washer and normal washer.", "family": "Workshop & Welding", "subtopic": "", "tid": "MUM-2025-05-2291", "tray": "new", "candidates": [ { "answer_id": "WTGS-325-008", "score": 0.6290320158004761, "sibling_score": 0.6290320158004761, "answer_score": 0.4025358080863953, "sibling_qid": "KOC-2025-03-2061-Q007", "sibling_text": "types of washers you have come across i had missed out spherical washer explained that spring washer normal washer self locking washer diff material washer copper ss", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Types of washers and their applications", "cross_family": false }, { "answer_id": "GKT-MAT-005", "score": 0.461866557598114, "sibling_score": 0.461866557598114, "answer_score": null, "sibling_qid": "KOL-2026-04-3944-Q001", "sibling_text": "copper washer reuse", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Reusing copper washers onboard", "cross_family": false }, { "answer_id": "GKT-MAT-004", "score": 0.46017348766326904, "sibling_score": 0.46017348766326904, "answer_score": null, "sibling_qid": "MUM-2026-04-2955-Q005", "sibling_text": "backup ring and o ring difference", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "O-ring versus back-up ring — what each does", "cross_family": false } ] }, { "qid": "MUM-2025-05-2291-Q003S2", "text": "what will you check if veg room temperature has dropped to -5. 5 how to know v belt is good for usage.", "family": "Refrigeration & AC", "subtopic": "Refer Safety", "tid": "MUM-2025-05-2291", "tray": "new", "candidates": [ { "answer_id": "REFR-FLT-001", "score": 0.5607793927192688, "sibling_score": 0.5607793927192688, "answer_score": null, "sibling_qid": "KOL-2017-02-3035-Q007", "sibling_text": "vegetable room temp goes below zero reasons n remedial actions", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Provision/cold room temperature: will not pull down, runs too low, or will not hold", "cross_family": false }, { "answer_id": "TEV-TXV-008", "score": 0.5269540548324585, "sibling_score": 0.5269540548324585, "answer_score": null, "sibling_qid": "KOL-2020-12-3368-Q003", "sibling_text": "refrigeration plant veg room provisions are being taken so it ll have more refrigerant flowing through it how the other rooms are maintained in their respective temperatures", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Maintaining different room temperatures off one plant", "cross_family": false }, { "answer_id": "REEF-COMP-005", "score": 0.5169605016708374, "sibling_score": 0.5169605016708374, "answer_score": 0.37243926972150804, "sibling_qid": "MUM-2025-11-2487-Q002", "sibling_text": "why v belt in reefer", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "V-belt drive on reefer compressors — why, and checking condition, alignment, tension, replacement", "cross_family": false } ] }, { "qid": "MUM-2025-05-2293-Q001", "text": "purifier vibrates after desludging operation why and how to rectify", "family": "Purifier & Centrifuges", "subtopic": "Vibration troubleshooting", "tid": "MUM-2025-05-2293", "tray": "review", "candidates": [ { "answer_id": "PURIF-BOWL-P02-002", "score": 0.7100446224212646, "sibling_score": 0.7100446224212646, "answer_score": null, "sibling_qid": "KOL-2022-09-3571-Q003", "sibling_text": "purifier bowl cleaned boxed back as soon as feed is given abnormal vibration is observed reasons rao", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Drive, rated RPM, overload, vibration / wobbling & dynamic balancing — causes and troubleshooting", "cross_family": false }, { "answer_id": "PUR-DSL-001", "score": 0.6157265305519104, "sibling_score": 0.6157265305519104, "answer_score": 0.48609758019447324, "sibling_qid": "MUM-2024-06-0958-Q001", "sibling_text": "manual desludging of purifier", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Manual desludging of a purifier — the step-by-step procedure", "cross_family": false }, { "answer_id": "PURIF-BOWL-P02-001", "score": 0.6149219870567322, "sibling_score": 0.6149219870567322, "answer_score": null, "sibling_qid": "MUM-2026-05-3206-Q011", "sibling_text": "purifier not desludging reasons", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Bowl opening, closing & manual desludging — mechanism, manual operation, failure causes", "cross_family": false } ] }, { "qid": "MUM-2025-05-2293-Q002", "text": "OWS started and level not going down for bilge holding tank. actions you take as a second engineer.", "family": "Fault Diagnosis & 2/E Actions", "subtopic": "Fault Diagnosis / 2E Action", "tid": "MUM-2025-05-2293", "tray": "review", "candidates": [ { "answer_id": "ODC-018", "score": 0.7542724609375, "sibling_score": 0.7542724609375, "answer_score": 0.5852022916078568, "sibling_qid": "MUM-2025-05-2290-Q004", "sibling_text": "er aft bilge well full of water you started ows after permission from ce after running for some time u noticed water level is not going down what can be the reason and actions u will take x que", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "OWS running but the bilge well is not going down — fault diagnosis", "cross_family": true }, { "answer_id": "OWS-15PPM-005", "score": 0.7216023206710815, "sibling_score": 0.7216023206710815, "answer_score": 0.5761549770832062, "sibling_qid": "KOL-2019-05-0283-Q005", "sibling_text": "if ows is not working bilges raising in the engine room actions as 2 e cleared class 2 thanks tobthe group", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": true }, { "answer_id": "CAS-ESTOP-001", "score": 0.6882302165031433, "sibling_score": 0.6882302165031433, "answer_score": 0.5370370894670486, "sibling_qid": "MUM-2026-07-3668-Q010", "sibling_text": "engine room is flooded below pump level you action as 2 e", "sibling_family": "Fault Diagnosis & 2/E Actions", "via": "sibling", "answer_title": "Engine-room flooding / rapidly rising bilges — immediate action as 2/E", "cross_family": false } ] }, { "qid": "MUM-2025-05-2294-Q001", "text": "AE LO sump level going down (purifier is not working). State reasons?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "LO System Alarms / LO System Troubleshooting / LO Pump Arrangement", "tid": "MUM-2025-05-2294", "tray": "review", "candidates": [ { "answer_id": "LO-SUMP-002", "score": 0.7226687669754028, "sibling_score": 0.7226687669754028, "answer_score": 0.48599483370780944, "sibling_qid": "KOL-2025-01-1964-Q007", "sibling_text": "scav drain tank incr and lo sump level low reasons", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main-engine LO sump level low / dropping — reasons and action", "cross_family": false }, { "answer_id": "LO-SUMP-001", "score": 0.6619437336921692, "sibling_score": 0.6619437336921692, "answer_score": null, "sibling_qid": "MUM-2025-11-2866-Q004", "sibling_text": "me sump level rising reasons", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main-engine LO sump level rising / crankcase oil increasing", "cross_family": false }, { "answer_id": "PURIF-172-004", "score": 0.5953279733657837, "sibling_score": 0.5953279733657837, "answer_score": null, "sibling_qid": "MUM-2024-11-2779-Q004", "sibling_text": "ae lub oil level going down one fine morning reasons wants to hear purifier leaked", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Overflow, leakage & water-in-oil troubleshooting", "cross_family": true } ] }, { "qid": "MUM-2025-05-2294-Q003", "text": "Bilge well not taking suction. State reasons", "family": "Fault Diagnosis & 2/E Actions", "subtopic": "Fault Diagnosis / 2E Action", "tid": "MUM-2025-05-2294", "tray": "review", "candidates": [ { "answer_id": "PPS-622-004", "score": 0.7284320592880249, "sibling_score": 0.7284320592880249, "answer_score": 0.5880405366420746, "sibling_qid": "MUM-2023-10-2198-Q003", "sibling_text": "bilge pump not taking suction reason", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "The bilge or ballast pump is not taking suction — reasons, how to identify the problem, how to rectify it. What does the suction gauge read, and what is suction head?", "cross_family": true }, { "answer_id": "PCD-P04-01", "score": 0.6831731796264648, "sibling_score": 0.6831731796264648, "answer_score": null, "sibling_qid": "MUM-2025-08-2826-Q016", "sibling_text": "bilge pump what type if not taking suction reasons", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "01. Bilge pump — type, why not centrifugal, and the suction valve chest", "cross_family": true }, { "answer_id": "ODC-018", "score": 0.5979353070259094, "sibling_score": null, "answer_score": 0.5979353070259094, "sibling_qid": "", "sibling_text": "ows running but the bilge well is not going down fault diagnosis confirm the level is genuine on a second means before chasing the plant suction side choked bilge well strainer valve shut or wrongly lined up air ingress through a slack joint pump lost suction priming", "sibling_family": "", "via": "answer_title", "answer_title": "OWS running but the bilge well is not going down — fault diagnosis", "cross_family": false } ] }, { "qid": "MUM-2025-05-2294-Q005", "text": "FWG vacuum isnt coming. State reasons.", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "MUM-2025-05-2294", "tray": "review", "candidates": [ { "answer_id": "FWG-RO-001", "score": 0.6959373354911804, "sibling_score": 0.6959373354911804, "answer_score": 0.37858625054359435, "sibling_qid": "MUM-2024-06-1081-Q006", "sibling_text": "fwg vaccum not coming", "sibling_family": "Fresh Water & Domestic Systems", "via": "sibling", "answer_title": "How is vacuum created in the FWG, why does it run under vacuum, and what if the vacuum will not come?", "cross_family": true }, { "answer_id": "VAC-COND-002", "score": 0.6355788707733154, "sibling_score": 0.6355788707733154, "answer_score": 0.4527262508869171, "sibling_qid": "CHE-2026-02-0479-Q002", "sibling_text": "vaccum not coming reason", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Low vacuum, suction loss and failure to build vacuum — the reasons", "cross_family": true }, { "answer_id": "VAC-COND-001", "score": 0.5295237898826599, "sibling_score": 0.5295237898826599, "answer_score": null, "sibling_qid": "MUM-2025-09-2396-Q005", "sibling_text": "why vaccum condition", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Purpose, working and thermodynamic principle of the vacuum condenser", "cross_family": true } ] }, { "qid": "MUM-2025-05-2295-Q001", "text": "Types of vessel sailed after class 4", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-05-2295", "tray": "new", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.6196979880332947, "sibling_score": 0.6196979880332947, "answer_score": null, "sibling_qid": "CHE-2026-02-0478-Q004", "sibling_text": "this type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.60708087682724, "sibling_score": 0.60708087682724, "answer_score": null, "sibling_qid": "KOC-2026-09-2198-Q001", "sibling_text": "type a and b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.5926255583763123, "sibling_score": 0.5926255583763123, "answer_score": null, "sibling_qid": "MUM-2026-06-3490-Q006", "sibling_text": "engine sailed type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "MUM-2025-05-2295-Q005", "text": "AE main bearing clearance how to take without removing piston", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Bearing Clearance", "tid": "MUM-2025-05-2295", "tray": "review", "candidates": [ { "answer_id": "BCL-592-002", "score": 0.747983992099762, "sibling_score": 0.747983992099762, "answer_score": 0.5761184990406036, "sibling_qid": "KOC-2026-02-1103-Q006", "sibling_text": "how you take clearences in main engine told main bearing telescopic crank pin cross head guide shoe and strip feeler guage x main bearing method other than feeler guage bridge guage", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Take me through all the clearances you measure on the main engine and how you take each one.", "cross_family": false }, { "answer_id": "MN-BRG-C-003", "score": 0.7419473528862, "sibling_score": 0.7419473528862, "answer_score": 0.5884600341320038, "sibling_qid": "KOC-2024-09-1867-Q001", "sibling_text": "how to take main bearing clearance", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main bearing clearance and wear-down: measuring and interpreting", "cross_family": false }, { "answer_id": "BEB-B-002", "score": 0.7339585423469543, "sibling_score": 0.7339585423469543, "answer_score": 0.5857342630624771, "sibling_qid": "CHE-2026-02-0334-Q003", "sibling_text": "big end bearing clearance where we take the piston position", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bottom End Bearing — Clearance Measurement", "cross_family": false } ] }, { "qid": "MUM-2025-05-2295-Q007", "text": "How will ascertain whether it is blowpast ( i told by removing the sump level dip the exhaust will gush out)", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-05-2295", "tray": "new", "candidates": [ { "answer_id": "AE-HOT-BLOW-002", "score": 0.5901508331298828, "sibling_score": 0.5901508331298828, "answer_score": 0.5040875375270844, "sibling_qid": "KOC-2026-03-2008-Q003", "sibling_text": "how you can find blowpast i have told lots of answer accepted lub oil spot test", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "How you know blow-past is occurring in an auxiliary engine — indications and effects", "cross_family": true }, { "answer_id": "LO-SUMP-004", "score": 0.5645610690116882, "sibling_score": 0.5645610690116882, "answer_score": null, "sibling_qid": "MUM-2025-03-2280-Q002", "sibling_text": "fitting arrangement of sump below and why below only how will you know below leaking", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main-engine dry sump — arrangement, why below, inspection and leak detection", "cross_family": true }, { "answer_id": "EXV-P02-001", "score": 0.5607821345329285, "sibling_score": 0.5607821345329285, "answer_score": null, "sibling_qid": "KOL-2026-04-3944-Q007", "sibling_text": "test on overhauled exhaust valve wants to hear give air supply one time and check for dropping of valve", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve overhaul & dismantling — procedure and precautions", "cross_family": true } ] }, { "qid": "MUM-2025-05-2295-Q008", "text": "How will ascertain which unit", "family": "", "subtopic": "", "tid": "MUM-2025-05-2295", "tray": "new", "candidates": [ { "answer_id": "EEDI-B-001", "score": 0.561663031578064, "sibling_score": 0.561663031578064, "answer_score": null, "sibling_qid": "MUM-2026-04-0901-Q008", "sibling_text": "unit", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "EEDI — formula, unit and the calculation terms", "cross_family": false }, { "answer_id": "WIDAS-SMK-003", "score": 0.5378897786140442, "sibling_score": 0.5378897786140442, "answer_score": null, "sibling_qid": "KOC-2025-09-0665-Q008", "sibling_text": "x location of unit", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "WIDAS arrangement — sensors, levels, panel and repeater", "cross_family": false }, { "answer_id": "JCW-SYS-007", "score": 0.5114527940750122, "sibling_score": 0.5114527940750122, "answer_score": 0.2822864979505539, "sibling_qid": "KOL-2020-03-3337-Q002", "sibling_text": "a e particular unit jcw leaking how will you find out which unit", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "One auxiliary-engine unit's jacket water is leaking - how you find which unit", "cross_family": false } ] }, { "qid": "MUM-2025-05-2295-Q014", "text": "Soot blow of egb done how will you get to know if the soot blow is done properly", "family": "Boilers - Operations & Firing", "subtopic": "Soot Blower / Economiser Fire", "tid": "MUM-2025-05-2295", "tray": "review", "candidates": [ { "answer_id": "BFS-257-010", "score": 0.747706949710846, "sibling_score": 0.747706949710846, "answer_score": 0.5917178273200988, "sibling_qid": "MUM-2025-11-2474-Q003", "sibling_text": "soot blowing done efficiently how do u know", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "How to confirm soot blowing has been carried out effectively", "cross_family": false }, { "answer_id": "BFS-257-008", "score": 0.5906268954277039, "sibling_score": 0.5906268954277039, "answer_score": 0.49215638041496274, "sibling_qid": "MUM-2025-05-0277-Q021", "sibling_text": "soot blowing procedure", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler / EGB soot-blowing — procedure, precautions, sequence", "cross_family": false }, { "answer_id": "SIH-FIRE-001", "score": 0.5885262489318848, "sibling_score": 0.5885262489318848, "answer_score": null, "sibling_qid": "MUM-2024-04-2225-Q003", "sibling_text": "egb soot fir indication", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "How will you identify an economiser / EGB fire — indications, symptoms and control?", "cross_family": false } ] }, { "qid": "MUM-2025-05-2300-Q001", "text": "Flow stick marking , how will you compare", "family": "", "subtopic": "", "tid": "MUM-2025-05-2300", "tray": "new", "candidates": [ { "answer_id": "PCD-P01-05", "score": 0.44342631101608276, "sibling_score": 0.44342631101608276, "answer_score": null, "sibling_qid": "MUM-2026-03-2622-Q002", "sibling_text": "how will you check the flow", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Checking centrifugal pump performance — head, flow and the MCSW check with M/E running", "cross_family": false }, { "answer_id": "BUNK-SAMP-004", "score": 0.4230118691921234, "sibling_score": 0.4230118691921234, "answer_score": null, "sibling_qid": "KOC-2025-02-2060-Q024", "sibling_text": "marking", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Sample container, material, quantity, marking and bottles", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.41436767578125, "sibling_score": 0.41436767578125, "answer_score": null, "sibling_qid": "KOL-2026-01-3908-Q002", "sibling_text": "as 2e rudder drop measurement how why to measure how to identify reference mark if not there not through document how mark is made", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false } ] }, { "qid": "MUM-2025-05-2300-Q003", "text": "AE turbocharger overhauled and fitted back in place. what checks to be carried out before start engine.", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE TURBOCHARGER", "tid": "MUM-2025-05-2300", "tray": "review", "candidates": [ { "answer_id": "TC-OVHL-001", "score": 0.7222971320152283, "sibling_score": 0.7222971320152283, "answer_score": 0.6290348649024963, "sibling_qid": "MUM-2024-07-1084-Q017", "sibling_text": "after turbo charger o haul what all checks you do", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Main-engine turbocharger overhaul — procedure and post-overhaul checks", "cross_family": true }, { "answer_id": "TC-TROUBLE-338-012", "score": 0.7210717797279358, "sibling_score": 0.7210717797279358, "answer_score": null, "sibling_qid": "KOL-2026-03-3927-Q002", "sibling_text": "what checks are done to ensure that sealing air is getting admitted into the turbocharger and is working properly", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "12. Confirming turbocharger sealing air is admitted and working", "cross_family": true }, { "answer_id": "TURBO-CS-P02-004", "score": 0.7188025712966919, "sibling_score": 0.7188025712966919, "answer_score": null, "sibling_qid": "KOL-2017-06-3063-Q002", "sibling_text": "before overhauling turbocharger what all clearance you will check after overhauling what all things you will check material of turbine blade", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharger clearances — what, how, and the k/l/m values", "cross_family": true } ] }, { "qid": "MUM-2025-05-2307-Q002", "text": "What ull check outside one day before flooding", "family": "", "subtopic": "", "tid": "MUM-2025-05-2307", "tray": "review", "candidates": [ { "answer_id": "DDHSC-001", "score": 0.7279089689254761, "sibling_score": 0.7279089689254761, "answer_score": null, "sibling_qid": "MUM-2025-05-2282-Q001", "sibling_text": "drydock what will you what will you check outside one day before flooding", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Ship is in drydock and the dock is pumped dry — what checks do you carry out as Second Engineer?", "cross_family": false }, { "answer_id": "DDHSC-004", "score": 0.6068249940872192, "sibling_score": 0.6068249940872192, "answer_score": 0.37146834582090377, "sibling_qid": "KOL-2019-11-3287-Q002", "sibling_text": "checks when flooding after dd", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "What checks are carried out after docking, and what are the first checks once the ship is out of dock?", "cross_family": false }, { "answer_id": "CRKC-INSP-002", "score": 0.5546954870223999, "sibling_score": 0.5546954870223999, "answer_score": null, "sibling_qid": "KOL-2022-07-3549-Q002", "sibling_text": "checks in cc post heavy weather", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Quick crankcase inspection after rough weather or grounding (short port stay)", "cross_family": false } ] }, { "qid": "MUM-2025-05-2307-Q003", "text": "Mac bumping clearance", "family": "2-Stroke - Components (Other)", "subtopic": "Running Clearances (Bumping/Jumping)", "tid": "MUM-2025-05-2307", "tray": "new", "candidates": [ { "answer_id": "RUN-CLR-002", "score": 0.5369125604629517, "sibling_score": 0.5369125604629517, "answer_score": 0.2939839422702789, "sibling_qid": "MUM-2024-12-2263-Q003", "sibling_text": "bumping clearances adjustments three methods could answer only two", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Bumping clearance — what it is, why it matters, effects, and how it is adjusted", "cross_family": false }, { "answer_id": "AC-VE-005", "score": 0.48769620060920715, "sibling_score": 0.48769620060920715, "answer_score": 0.2991870790719986, "sibling_qid": "MUM-2026-05-3276-Q004", "sibling_text": "how to take bumping clearance", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "If bumping clearance is more or less, what happens, and how do you reduce or adjust it?", "cross_family": true }, { "answer_id": "RUN-CLR-004", "score": 0.4681306481361389, "sibling_score": 0.4681306481361389, "answer_score": null, "sibling_qid": "KOC-2025-12-1085-Q007", "sibling_text": "why ae don t have bumping clearance", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Why auxiliary engines do not have bumping clearance", "cross_family": false } ] }, { "qid": "MUM-2025-05-2307-Q008", "text": "Got fn 4b & 6", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-05-2307", "tray": "new", "candidates": [ { "answer_id": "CB-ACB-F-001", "score": 0.46494612097740173, "sibling_score": 0.46494612097740173, "answer_score": null, "sibling_qid": "MUM-2022-07-1329-Q003", "sibling_text": "sf 6", "sibling_family": "", "via": "sibling", "answer_title": "ACB function & working principle in the ship distribution system", "cross_family": false }, { "answer_id": "CAM-437-001", "score": 0.4644956588745117, "sibling_score": 0.4644956588745117, "answer_score": null, "sibling_qid": "KOC-2026-01-1090-Q007", "sibling_text": "cam function internal gasket types got 6 4b repeat", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Function of the camshaft in a main (MC) engine", "cross_family": true }, { "answer_id": "FCL-P01-001", "score": 0.4634682238101959, "sibling_score": 0.4634682238101959, "answer_score": null, "sibling_qid": "KOL-2026-01-4081-Q012", "sibling_text": "fuel pump lead 4b repeat and fn 6 pass", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel pump lead and fuel cam lead: meaning, measurement, significance and adjustment", "cross_family": true } ] }, { "qid": "MUM-2025-05-2308-Q002", "text": "turbocharger maintenance intervals", "family": "Turbocharger", "subtopic": "", "tid": "MUM-2025-05-2308", "tray": "review", "candidates": [ { "answer_id": "TC-TROUBLE-338-002", "score": 0.7723658680915833, "sibling_score": 0.7723658680915833, "answer_score": null, "sibling_qid": "MUM-2026-05-3145-Q007", "sibling_text": "turbocharger condition based maintainence", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "2. Turbocharger condition monitoring — what to check", "cross_family": false }, { "answer_id": "TC-OVHL-001", "score": 0.74989914894104, "sibling_score": 0.74989914894104, "answer_score": 0.5598454415798187, "sibling_qid": "MUM-2023-01-1040-Q016", "sibling_text": "turbocharger overhaul in place checks on turbine shaft", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Main-engine turbocharger overhaul — procedure and post-overhaul checks", "cross_family": false }, { "answer_id": "TC-CS-P01-006", "score": 0.7375543117523193, "sibling_score": 0.7375543117523193, "answer_score": null, "sibling_qid": "KOC-2022-12-1800-Q004", "sibling_text": "me turbocharger overhaul", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "F·Turbocharger overhaul and clearances (ME and AE)", "cross_family": false } ] }, { "qid": "MUM-2025-05-2795-Q005S10", "text": "Reamer Interference bolt ?", "family": "", "subtopic": "", "tid": "MUM-2025-05-2795", "tray": "new", "candidates": [ { "answer_id": "FB-COUP-001", "score": 0.6442070007324219, "sibling_score": 0.6442070007324219, "answer_score": 0.47568233907222746, "sibling_qid": "CHE-2026-03-0488-Q002", "sibling_text": "what is fitted bolt where it is used how the hole is made i said with reamer tool he accepted", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What fitted bolts are, what they do, and where they sit onboard", "cross_family": false }, { "answer_id": "FB-COUP-002", "score": 0.6073719263076782, "sibling_score": 0.6073719263076782, "answer_score": 0.4311294764280319, "sibling_qid": "KOL-2019-11-1497-Q003", "sibling_text": "interference fit bolt", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Interference fit and shrink fit — the principle and the difference", "cross_family": false }, { "answer_id": "FB-COUP-003", "score": 0.5985219478607178, "sibling_score": 0.5985219478607178, "answer_score": null, "sibling_qid": "KOL-2023-07-3621-Q001", "sibling_text": "1 how to remove interference fitted bolt proper procedure", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Opening interference-fit coupling bolts — the procedure", "cross_family": false } ] }, { "qid": "MUM-2025-05-2795-Q005S11", "text": "Heat exchanger tube expansion arrangement ?", "family": "", "subtopic": "", "tid": "MUM-2025-05-2795", "tray": "review", "candidates": [ { "answer_id": "SH-332-002", "score": 0.7479868531227112, "sibling_score": 0.7479868531227112, "answer_score": null, "sibling_qid": "MUM-2024-07-0960-Q007", "sibling_text": "sh tubes expansion arrangement", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Where superheater tubes are fitted; attachment, support and expansion", "cross_family": false }, { "answer_id": "BLR-TUBE-P01-003", "score": 0.7149516940116882, "sibling_score": 0.7149516940116882, "answer_score": 0.5806801289319992, "sibling_qid": "KOL-2017-04-1287-Q005", "sibling_text": "boiler tubes expansion arrangement", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "02. Thermal expansion arrangements for boiler tubes", "cross_family": false }, { "answer_id": "STHX-001", "score": 0.6643866896629333, "sibling_score": 0.6643866896629333, "answer_score": 0.5542081654071808, "sibling_qid": "MUM-2026-06-3364-Q002", "sibling_text": "how shell and tube heat exchanger expansion is taken care", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "STHX-01 — Construction, parts, materials, tube fitting, pass arrangement and flow", "cross_family": false } ] }, { "qid": "MUM-2025-05-2795-Q005S12", "text": "Engine derating ?", "family": "", "subtopic": "", "tid": "MUM-2025-05-2795", "tray": "review", "candidates": [ { "answer_id": "ENG-DERATE-001", "score": 0.7262798547744751, "sibling_score": 0.7262798547744751, "answer_score": 0.5255130171775818, "sibling_qid": "KOL-2025-03-1968-Q003", "sibling_text": "derating of engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What is main-engine derating, and why is it done?", "cross_family": false }, { "answer_id": "ENG-DERATE-002", "score": 0.7220938205718994, "sibling_score": 0.7220938205718994, "answer_score": 0.5251715421676636, "sibling_qid": "MUM-2026-06-3396-Q012", "sibling_text": "derating and derating if diesel engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "How is a main engine temporarily derated and later restored, without propeller changes?", "cross_family": false }, { "answer_id": "ENG-DERATE-004", "score": 0.5161244809627533, "sibling_score": null, "answer_score": 0.5161244809627533, "sibling_qid": "", "sibling_text": "what is slow steaming and what problems can occur during slow steaming derated operation slow steaming running below design service speed for fuel emissions saving power roughly proportional to the cube of speed engine sits at sustained low load the root of every problem below", "sibling_family": "", "via": "answer_title", "answer_title": "What is slow steaming, and what problems can occur during slow-steaming / derated operation?", "cross_family": false } ] }, { "qid": "MUM-2025-05-2795-Q005S2", "text": "Engine nomenclature?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2025-05-2795", "tray": "review", "candidates": [ { "answer_id": "ENG-NOM-005", "score": 0.8081970810890198, "sibling_score": 0.8081970810890198, "answer_score": 0.527849993109703, "sibling_qid": "MUM-2026-05-3153-Q007", "sibling_text": "engines nomenclature", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false }, { "answer_id": "ETP-344-P03-003", "score": 0.5835734456777573, "sibling_score": null, "answer_score": 0.5835734456777573, "sibling_qid": "", "sibling_text": "engine nomenclature layout mark number and engine constant designation order man b w cylinders stroke bore letter k l s g bore in cm m programme concept e electronic c camshaft design c compact b camshaft controlled exhaust hybrid mark number gi if gas injection tier rating stroke bore letters k short l long s super long g ultra long green the ratios are approximate design values not exact", "sibling_family": "", "via": "answer_title", "answer_title": "Engine nomenclature, layout, mark number and engine constant", "cross_family": false }, { "answer_id": "ENG-NOM-001", "score": 0.5668032735586166, "sibling_score": null, "answer_score": 0.5668032735586166, "sibling_qid": "", "sibling_text": "nomenclature of me and ae asked together main engine and auxiliary engine are decoded on different rules don t run one set of letters across both main engine man b w two stroke cylinders stroke letter bore in cm programme letter control letter then compact version", "sibling_family": "", "via": "answer_title", "answer_title": "Nomenclature of ME and AE (asked together)", "cross_family": false } ] }, { "qid": "MUM-2025-05-2795-Q005S4", "text": "Chain slackness and tightening procedure", "family": "2-Stroke - Components (Other)", "subtopic": "Chain Drive & Tensioning", "tid": "MUM-2025-05-2795", "tray": "review", "candidates": [ { "answer_id": "CHAIN-TENS-A-003", "score": 0.6861480474472046, "sibling_score": 0.6861480474472046, "answer_score": 0.513065493106842, "sibling_qid": "KOC-2024-11-1014-Q006", "sibling_text": "chain tightening procedure and draw diagram to show slack chain", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Chain Tightening Procedure — MC / MC-C / ME", "cross_family": true }, { "answer_id": "ANCH-C-003", "score": 0.667617917060852, "sibling_score": 0.667617917060852, "answer_score": 0.5367560565471649, "sibling_qid": "KOL-2025-11-3886-Q003", "sibling_text": "chain tightening procedure", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Chain tightening & relieving strain", "cross_family": true }, { "answer_id": "CHAIN-TENS-C-001", "score": 0.6643989682197571, "sibling_score": 0.6643989682197571, "answer_score": 0.4673758327960968, "sibling_qid": "KOL-2019-07-1467-Q002", "sibling_text": "chain tightening", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main-engine chain drive — how you know it is slack, and how you check and tighten it", "cross_family": true } ] }, { "qid": "MUM-2025-05-2795-Q005S5", "text": "How to identify chain has slacken", "family": "", "subtopic": "", "tid": "MUM-2025-05-2795", "tray": "review", "candidates": [ { "answer_id": "CHAIN-TENS-A-001", "score": 0.6555030345916748, "sibling_score": 0.6555030345916748, "answer_score": 0.4469664692878723, "sibling_qid": "MUM-2026-06-3555-Q008", "sibling_text": "how to know chain is slacken", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Slack Chain — Indication & Effects", "cross_family": false }, { "answer_id": "CHAIN-TENS-C-001", "score": 0.6326155066490173, "sibling_score": 0.6326155066490173, "answer_score": 0.42879852950572966, "sibling_qid": "KOL-2026-02-4083-Q012", "sibling_text": "chain slackness how to check", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main-engine chain drive — how you know it is slack, and how you check and tighten it", "cross_family": false }, { "answer_id": "CHAIN-TENS-B-001", "score": 0.4372720241546631, "sibling_score": null, "answer_score": 0.4372720241546631, "sibling_qid": "", "sibling_text": "chain elongation and wear checking then tighten or renew elongation is wear at pins bushes and sprocket teeth not stretch the chain has a high factor of safety so lost tension means wear check on the turning gear gauge slack by pulling the chain off the guide bar at mid span limit roughly half to one pitch confirmed on the maker work card", "sibling_family": "", "via": "answer_title", "answer_title": "Chain elongation and wear — checking, then tighten or renew", "cross_family": false } ] }, { "qid": "MUM-2025-05-2795-Q005S6", "text": "Air fuel ratio- full explanation", "family": "", "subtopic": "", "tid": "MUM-2025-05-2795", "tray": "new", "candidates": [ { "answer_id": "AFR-BF68-002", "score": 0.6273048520088196, "sibling_score": 0.6273048520088196, "answer_score": 0.5079335391521453, "sibling_qid": "MUM-2026-05-3195-Q003", "sibling_text": "air fuel ratio how to adjust", "sibling_family": "Boilers - 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How LNG / gas is fed, admitted or injected — and at what cycle and compression", "cross_family": false }, { "answer_id": "AFR-BF68-001", "score": 0.5661501884460449, "sibling_score": 0.5661501884460449, "answer_score": 0.5013526976108551, "sibling_qid": "KOL-2023-10-2681-Q001", "sibling_text": "boiler air fuel ratio controller what increases first air or fuel", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Air-fuel ratio control — and what increases first, air or fuel", "cross_family": false } ] }, { "qid": "MUM-2025-05-2795-Q005S7", "text": "Steering gear hunting- cause explain ? Regulation of steering gear above 10000 dwt", "family": "", "subtopic": "", "tid": "MUM-2025-05-2795", "tray": "new", "candidates": [ { "answer_id": "STG-055-C-002", "score": 0.6365368962287903, "sibling_score": 0.6365368962287903, "answer_score": 0.4297422468662262, "sibling_qid": "KOL-2022-10-1926-Q012", "sibling_text": "6 steering gear 10000dwt regulations", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "SOLAS steering-gear requirements, tests and drills", "cross_family": false }, { "answer_id": "STG-055-C-001", "score": 0.5790332555770874, "sibling_score": 0.5790332555770874, "answer_score": null, "sibling_qid": "KOL-2019-10-1876-Q002", "sibling_text": "2 safematic design of steering gear wat if dwt is more than 100000 for tanker", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Safematic steering gear, redundancy and the single-failure criterion", "cross_family": false }, { "answer_id": "SG-055-B-002", "score": 0.5647608041763306, "sibling_score": 0.5647608041763306, "answer_score": null, "sibling_qid": "KOL-2019-01-1438-Q004", "sibling_text": "steering gear fail safe arrangements and relation to gross tonnage of ship", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Steering-gear alarms, trips and electrical / hydraulic safeties", "cross_family": false } ] }, { "qid": "MUM-2025-05-2795-Q005S8", "text": "Boiler firing manual- explanation ?", "family": "", "subtopic": "", "tid": "MUM-2025-05-2795", "tray": "review", "candidates": [ { "answer_id": "BLR-OPS-007", "score": 0.7609420418739319, "sibling_score": 0.7609420418739319, "answer_score": 0.5582363545894623, "sibling_qid": "MUM-2026-06-3587-Q004", "sibling_text": "manual firing of boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Explain the firing sequence of an automatically fired boiler.", "cross_family": false }, { "answer_id": "BFM-330-003", "score": 0.7134069800376892, "sibling_score": 0.7134069800376892, "answer_score": null, "sibling_qid": "KOC-2026-05-0014-Q005", "sibling_text": "boiler manual firing and cross", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler vibration, backflow and furnace blowback during firing", "cross_family": false }, { "answer_id": "BLR-OPS-004", "score": 0.6948695182800293, "sibling_score": 0.6948695182800293, "answer_score": null, "sibling_qid": "MUM-2026-07-3768-Q007", "sibling_text": "instruction to 4e to start the boiler in manual", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Explain the procedure for starting a boiler from a laid-up condition.", "cross_family": false } ] }, { "qid": "MUM-2025-05-2795-Q005S9", "text": "Boiler Backfire ?", "family": "", "subtopic": "", "tid": "MUM-2025-05-2795", "tray": "review", "candidates": [ { "answer_id": "BFM-330-003", "score": 0.7180269956588745, "sibling_score": 0.7180269956588745, "answer_score": 0.5067820489406586, "sibling_qid": "MUM-2026-09-3957-Q003", "sibling_text": "back fire of boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler vibration, backflow and furnace blowback during firing", "cross_family": false }, { "answer_id": "BFS-257-006", "score": 0.697752833366394, "sibling_score": 0.697752833366394, "answer_score": 0.5610252529382705, "sibling_qid": "MUM-2023-09-2193-Q006", "sibling_text": "boiler is back firing reasons", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler backfire / blowback / panting — causes, prevention, actions", "cross_family": false }, { "answer_id": "BBF-621-001", "score": 0.679843008518219, "sibling_score": 0.679843008518219, "answer_score": 0.5533174932003021, "sibling_qid": "MUM-2025-09-1197-Q004", "sibling_text": "boiler blow back", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "What is boiler backfire / blowback? 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What is a Recognized Organization, how is it recognized by a flag State, and how can a classification society become one?", "cross_family": true }, { "answer_id": "FLAG-ST-001", "score": 0.5540881156921387, "sibling_score": 0.5540881156921387, "answer_score": null, "sibling_qid": "KOL-2025-08-1003-Q005", "sibling_text": "flag state", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Flag State — authority, role, duties and requirements", "cross_family": true } ] }, { "qid": "MUM-2025-05-2800-Q004", "text": "Wake and wake fraction", "family": "Ship Construction & Stability", "subtopic": "DEFINITION", "tid": "MUM-2025-05-2800", "tray": "new", "candidates": [ { "answer_id": "RES-PROP-P03-002", "score": 0.6106643676757812, "sibling_score": 0.6106643676757812, "answer_score": null, "sibling_qid": "KOL-2020-09-0422-Q002", "sibling_text": "what is wake fraction", "sibling_family": "", "via": "sibling", "answer_title": "2. Propulsive coefficients: QPC, hull/propeller/relative-rotative efficiency, wake, slip and propeller curves", "cross_family": false }, { "answer_id": "SPR-STERN-005", "score": 0.5577279329299927, "sibling_score": 0.5577279329299927, "answer_score": 0.3328681424260139, "sibling_qid": "KOC-2021-11-0032-Q002", "sibling_text": "wake", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Slip, wake, wake speed & speed of advance", "cross_family": true }, { "answer_id": "GFI-572-004", "score": 0.49895697832107544, "sibling_score": 0.49895697832107544, "answer_score": null, "sibling_qid": "CHE-2026-04-0134-Q009", "sibling_text": "what is well to wake", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "MEPC 83 GFI: well-to-wake, IMO Net-Zero Fund and remedial units", "cross_family": true } ] }, { "qid": "MUM-2025-06-0306-Q004", "text": "Lifeboat Davit survey", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Lifeboat / Davit / LSA", "tid": "MUM-2025-06-0306", "tray": "review", "candidates": [ { "answer_id": "DRG-B-012", "score": 0.7797659039497375, "sibling_score": 0.7797659039497375, "answer_score": 0.5137329399585724, "sibling_qid": "KOL-2022-08-0667-Q003", "sibling_text": "lifeboat davit survey without lowering lifeboat", "sibling_family": "SOLAS - 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Statutory", "via": "sibling", "answer_title": "List the statutory certificates carried onboard a ship.", "cross_family": true }, { "answer_id": "CSR-585-001", "score": 0.44731563329696655, "sibling_score": 0.44731563329696655, "answer_score": 0.270326817035675, "sibling_qid": "KOL-2026-05-4088-Q002", "sibling_text": "csr and where to find", "sibling_family": "ISPS", "via": "sibling", "answer_title": "What is the Continuous Synopsis Record (CSR)? 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Draw and explain free surface effect", "cross_family": false } ] }, { "qid": "MUM-2025-06-0313-Q001", "text": "working of reliq plant on gas tanker", "family": "Cargo Ops - Gas Carriers", "subtopic": "Reliquefaction Plant", "tid": "MUM-2025-06-0313", "tray": "review", "candidates": [ { "answer_id": "BLEVE-BOG-004", "score": 0.6657267212867737, "sibling_score": 0.6657267212867737, "answer_score": null, "sibling_qid": "CHE-2026-02-0115-Q003", "sibling_text": "how to you maintain gas vapour from tank i explained about the lng carriers in my vessel but he was expecting a re liquefaction plant from lpg", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "How are LNG boil-off, tank pressure and cargo temperature controlled?", "cross_family": false }, { "answer_id": "MARVS-TANK-001", "score": 0.639370858669281, "sibling_score": 0.639370858669281, "answer_score": null, "sibling_qid": "KOC-2025-11-0737-Q004", "sibling_text": "gas tanker safety valve working", "sibling_family": "Cargo Ops - 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Tankers", "via": "sibling", "answer_title": "Two cargoes mixing in a product tanker — exact definition, consequences, assessment and immediate actions", "cross_family": true }, { "answer_id": "IMDG-006", "score": 0.5925737619400024, "sibling_score": 0.5925737619400024, "answer_score": 0.4209555730223656, "sibling_qid": "CHE-2026-05-0608-Q002", "sibling_text": "cargo segregation", "sibling_family": "Ship Construction", "via": "sibling", "answer_title": "Explain the segregation of dangerous cargo and the segregation criteria", "cross_family": true }, { "answer_id": "GC-TANK-001", "score": 0.5804442167282104, "sibling_score": 0.5804442167282104, "answer_score": null, "sibling_qid": "CHE-2025-09-0300-Q010", "sibling_text": "cargo containment", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Main cargo containment and independent tank types on LPG and LNG carriers", "cross_family": false } ] }, { "qid": "MUM-2025-06-0322-Q001", "text": "1st Attempt", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-06-0322", "tray": "new", "candidates": [ { "answer_id": "DDHSC-004", "score": 0.4758678078651428, "sibling_score": 0.4758678078651428, "answer_score": null, "sibling_qid": "KOC-2025-12-1986-Q003", "sibling_text": "first checks after dd", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "What checks are carried out after docking, and what are the first checks once the ship is out of dock?", "cross_family": true }, { "answer_id": "A6-NSEC-005", "score": 0.45831412076950073, "sibling_score": 0.45831412076950073, "answer_score": null, "sibling_qid": "MUM-2026-06-3452-Q006", "sibling_text": "seemp 1 2", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP — Part I, II & III", "cross_family": true }, { "answer_id": "AV6-P05-01", "score": 0.44103652238845825, "sibling_score": 0.44103652238845825, "answer_score": null, "sibling_qid": "KOC-2025-03-0558-Q007", "sibling_text": "seemp 2", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP Part II — IMO DCS plan and contents", "cross_family": true } ] }, { "qid": "MUM-2025-06-0322-Q003", "text": "Damage Stability in detail.", "family": "SOLAS", "subtopic": "Damage Stability", "tid": "MUM-2025-06-0322", "tray": "review", "candidates": [ { "answer_id": "DS-BASIC-P01-001", "score": 0.7155993580818176, "sibling_score": 0.7155993580818176, "answer_score": 0.5375212848186492, "sibling_qid": "MUM-2023-03-0094-Q001", "sibling_text": "damage stability", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Damage stability: definition, meaning and oral overview", "cross_family": false }, { "answer_id": "DS-049-P02-001", "score": 0.693686306476593, "sibling_score": 0.693686306476593, "answer_score": 0.45378684997558594, "sibling_qid": "KOC-2024-09-0405-Q008", "sibling_text": "damage stability intact stability criteria", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Difference between intact stability (static / dynamic) and damage stability criteria", "cross_family": false }, { "answer_id": "DAM-STAB-P03-002", "score": 0.690924882888794, "sibling_score": 0.690924882888794, "answer_score": null, "sibling_qid": "KOC-2024-12-0485-Q011", "sibling_text": "damage stability criteria", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "General cargo-ship damage stability criteria and requirements", "cross_family": false } ] }, { "qid": "MUM-2025-06-0322-Q004", "text": "For tanker what applies.", "family": "SOLAS", "subtopic": "Damage Stability", "tid": "MUM-2025-06-0322", "tray": "review", "candidates": [ { "answer_id": "LL-CONV-P04-001", "score": 0.6768254041671753, "sibling_score": 0.6768254041671753, "answer_score": null, "sibling_qid": "KOL-2016-05-0002-Q005", "sibling_text": "condition of assignment for tankers specially for tanker", "sibling_family": "", "via": "sibling", "answer_title": "Conditions of assignment of freeboard: purpose, checks and effect on freeboard", "cross_family": false }, { "answer_id": "TKR-TYPE-004", "score": 0.6529123783111572, "sibling_score": 0.6529123783111572, "answer_score": null, "sibling_qid": "MUM-2025-12-0992-Q003", "sibling_text": "which type tanker", "sibling_family": "Cargo Ops - 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Statutory", "via": "sibling", "answer_title": "What is a PSC MoU, and why is regional cooperation between port States required?", "cross_family": false }, { "answer_id": "PSC-SURV-P01-002", "score": 0.4710516333580017, "sibling_score": 0.4710516333580017, "answer_score": null, "sibling_qid": "KOL-2025-10-1100-Q004", "sibling_text": "what is psc what is cic what do you understand by mou and its significance", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is a Concentrated Inspection Campaign (CIC) under PSC?", "cross_family": false } ] }, { "qid": "MUM-2025-06-0322-Q007", "text": "Name all Solas Chapters", "family": "SOLAS - General (HOLD)", "subtopic": "Solas Chapters Overview", "tid": "MUM-2025-06-0322", "tray": "review", "candidates": [ { "answer_id": "SOLAS-CH-015", "score": 0.7796445488929749, "sibling_score": 0.7796445488929749, "answer_score": 0.5580407917499542, "sibling_qid": "MUM-2026-03-0864-Q021", "sibling_text": "solas chapters all", "sibling_family": "SOLAS - General (HOLD)", "via": "sibling", "answer_title": "SOLAS chapters overview - current count and scope", "cross_family": false }, { "answer_id": "SOLAS12-C-001", "score": 0.7280380129814148, "sibling_score": 0.7280380129814148, "answer_score": null, "sibling_qid": "KOC-2026-10-2218-Q002", "sibling_text": "solas chapter 12 name all chapters", "sibling_family": "SOLAS - General", "via": "sibling", "answer_title": "Explain SOLAS Chapter XII for bulk carriers — oral-exam overview", "cross_family": true }, { "answer_id": "SOLAS-OVW-001", "score": 0.7279658317565918, "sibling_score": 0.7279658317565918, "answer_score": 0.4204776853322983, "sibling_qid": "KOL-2022-07-0649-Q003", "sibling_text": "solas chapters", "sibling_family": "", "via": "sibling", "answer_title": "SOLAS — how many chapters, and what each covers", "cross_family": false } ] }, { "qid": "MUM-2025-06-0323-Q001", "text": "Which type of ship you sailed", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-06-0323", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8000199198722839, "sibling_score": 0.8000199198722839, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7990004420280457, "sibling_score": 0.7990004420280457, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.7541695237159729, "sibling_score": 0.7541695237159729, "answer_score": null, "sibling_qid": "MUM-2026-02-1280-Q001", "sibling_text": "type of ship done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false } ] }, { "qid": "MUM-2025-06-0323-Q002", "text": "Which type of cargo your ship Carry", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-06-0323", "tray": "review", "candidates": [ { "answer_id": "ODC-008", "score": 0.7483899593353271, "sibling_score": 0.7483899593353271, "answer_score": null, "sibling_qid": "MUM-2026-03-2647-Q001", "sibling_text": "type of cargo discharge in your ship", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "Cargo-area discharge criteria for an oil tanker — outside a special area", "cross_family": false }, { "answer_id": "CHEM-PA-012", "score": 0.7426084280014038, "sibling_score": 0.7426084280014038, "answer_score": 0.5154765903949737, "sibling_qid": "CHE-2026-04-0159-Q002", "sibling_text": "categories of cargo your ship cargo", "sibling_family": "MARPOL - Annex II (NLS)", "via": "sibling", "answer_title": "Differentiating chemical tankers and finding a ship’s allowable cargo", "cross_family": true }, { "answer_id": "TKR-TYPE-004", "score": 0.7372028231620789, "sibling_score": 0.7372028231620789, "answer_score": 0.5357558488845825, "sibling_qid": "MUM-2025-09-0481-Q004", "sibling_text": "type of cargo", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "4. Tanker cargo-type classification, examples, and sweet vs sour crude", "cross_family": true } ] }, { "qid": "MUM-2025-06-0323-Q006", "text": "Limitation clause", "family": "", "subtopic": "", "tid": "MUM-2025-06-0323", "tray": "review", "candidates": [ { "answer_id": "CLC-CIV-B-003", "score": 0.7381757497787476, "sibling_score": 0.7381757497787476, "answer_score": 0.3527550846338272, "sibling_qid": "KOL-2025-06-0955-Q006", "sibling_text": "limitation clause", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "LLMC: purpose, scope and limitation of maritime claims", "cross_family": false }, { "answer_id": "SOX-LIMIT-001", "score": 0.6270036101341248, "sibling_score": 0.6270036101341248, "answer_score": null, "sibling_qid": "KOL-2026-02-1188-Q005", "sibling_text": "sox limitation", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "MARPOL Annex VI sulphur limits — the 2020 global cap", "cross_family": false }, { "answer_id": "ENG-DERATE-003", "score": 0.6074137091636658, "sibling_score": 0.6074137091636658, "answer_score": null, "sibling_qid": "KOL-2017-03-1281-Q005", "sibling_text": "what were the limits", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What limits or restrictions apply after derating, and why is performance taken at ~80–85% MCR?", "cross_family": false } ] }, { "qid": "MUM-2025-06-0323-Q010", "text": "Pssa and what all area for pssa", "family": "", "subtopic": "", "tid": "MUM-2025-06-0323", "tray": "review", "candidates": [ { "answer_id": "EEZ-PSSA-001", "score": 0.6786932945251465, "sibling_score": 0.6786932945251465, "answer_score": 0.42120400369167327, "sibling_qid": "KOL-2025-06-0955-Q010", "sibling_text": "pssa and what all area for pssa", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "PSSA — what it is, who designates it, and how it differs from a MARPOL special area", "cross_family": false }, { "answer_id": "EEZ-PSSA-002", "score": 0.4549161195755005, "sibling_score": 0.4549161195755005, "answer_score": 0.2992204412817955, "sibling_qid": "MUM-2022-09-0048-Q009", "sibling_text": "annex 1 spl areas", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "MARPOL special area — definition, the annexes, the names, the Annex I rule", "cross_family": false }, { "answer_id": "PSC-RO-P02-001", "score": 0.4505764842033386, "sibling_score": 0.4505764842033386, "answer_score": null, "sibling_qid": "CHE-2026-09-3924-Q013", "sibling_text": "psc purpose and function", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is Port State Control, and what is its purpose?", "cross_family": false } ] }, { "qid": "MUM-2025-06-0323-Q011", "text": "Oil mist detector alarm came and as 2nd eng how u will calibrate", "family": "Fault Diagnosis & 2/E Actions", "subtopic": "Fault Diagnosis / 2E Action", "tid": "MUM-2025-06-0323", "tray": "review", "candidates": [ { "answer_id": "TPL-SENS-A-002", "score": 0.6522707343101501, "sibling_score": 0.6522707343101501, "answer_score": null, "sibling_qid": "CHE-2025-10-0304-Q009", "sibling_text": "how you will try out generator lube oil low pressure alarm and trips with the pressure calibrator", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Pressure transmitter / transducer / switch working and calibration", "cross_family": true }, { "answer_id": "CCE-322-006", "score": 0.6279027462005615, "sibling_score": 0.6279027462005615, "answer_score": 0.4968995898962021, "sibling_qid": "MUM-2026-06-3586-Q005", "sibling_text": "me oil mist detector faulty what all checks", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Testing the OMD alarm; alarm and shutdown values", "cross_family": true }, { "answer_id": "OMD-001", "score": 0.6211147308349609, "sibling_score": 0.6211147308349609, "answer_score": 0.49009952545166013, "sibling_qid": "KOL-2019-05-3241-Q002", "sibling_text": "omd alarm your action he told me as alarm limit is at a safer limit 5 lel reset the alarm and if it s gone it s gone for good we don t need to do crankcase inspections that will make you loose 2 3 hours and time charter won t be happy about any unnecessary delay", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "The OMD alarm sounds on your watch. What are your actions, the checks and crankcase inspection that follow, and what are the alarm levels?", "cross_family": true } ] }, { "qid": "MUM-2025-06-0324-Q001", "text": ") Type of ships sailed - Crude oil i said", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-06-0324", "tray": "review", "candidates": [ { "answer_id": "COT-01", "score": 0.7319347262382507, "sibling_score": 0.7319347262382507, "answer_score": 0.4998746275901794, "sibling_qid": "KOC-2026-04-0892-Q003", "sibling_text": "type of ship sailed tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Oil-tanker types, definitions and cargo capability", "cross_family": false }, { "answer_id": "TKR-TYPE-001", "score": 0.7027238011360168, "sibling_score": 0.7027238011360168, "answer_score": 0.48426668643951415, "sibling_qid": "KOL-2023-02-0719-Q001", "sibling_text": "type of ship sailed i said oil product tanker constructional difference between crude oil and product tanker", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "1. Crude oil tanker vs product tanker / carrier — construction and cargo-area differences", "cross_family": true }, { "answer_id": "LPG-LNG-009", "score": 0.6949774622917175, "sibling_score": 0.6949774622917175, "answer_score": null, "sibling_qid": "CHE-2026-04-0164-Q001", "sibling_text": "type of ship sailed lpg carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Gas-carrier fundamentals and ship-specific traps", "cross_family": false } ] }, { "qid": "MUM-2025-06-0324-Q005", "text": " If you have taken lub oil bunker in drum, would there be any entry in ORB.", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "MUM-2025-06-0324", "tray": "review", "candidates": [ { "answer_id": "OWS-ORB-006", "score": 0.7234175801277161, "sibling_score": 0.7234175801277161, "answer_score": 0.42480235993862153, "sibling_qid": "KOC-2026-03-0844-Q005", "sibling_text": "orb bunkering codes and details where to mention lube oil received in bulk and lube oil received in drums", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "6. Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": false }, { "answer_id": "CO2-SYS-006", "score": 0.5762101411819458, "sibling_score": 0.5762101411819458, "answer_score": null, "sibling_qid": "KOC-2026-04-0903-Q005", "sibling_text": "in orb entries aux engine sump oil renewal manual transfer in which code and section", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "CO2 bottles, manifolds, pilot cylinders and valve components", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-004", "score": 0.5515926480293274, "sibling_score": 0.5515926480293274, "answer_score": 0.44349796473979947, "sibling_qid": "MUM-2026-08-3831-Q008", "sibling_text": "bunker entry in orb", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Weekly ORB entries — the mandatory sludge retention record, the bunker entry, and what is voluntary", "cross_family": false } ] }, { "qid": "MUM-2025-06-0324-Q009", "text": " what is damage stability. I told only definition.", "family": "Ship Construction & Stability", "subtopic": "DEFINITION", "tid": "MUM-2025-06-0324", "tray": "review", "candidates": [ { "answer_id": "DS-BASIC-P01-001", "score": 0.6781939268112183, "sibling_score": 0.6781939268112183, "answer_score": 0.5787883877754211, "sibling_qid": "CHE-2026-05-0626-Q018", "sibling_text": "what is damage stability", "sibling_family": "Ship Construction & Naval Architecture", "via": "sibling", "answer_title": "Damage stability: definition, meaning and oral overview", "cross_family": true }, { "answer_id": "DAM-STAB-P03-001", "score": 0.675565242767334, "sibling_score": 0.675565242767334, "answer_score": 0.4717513233423233, "sibling_qid": "MUM-2026-05-3251-Q001", "sibling_text": "intact and damage stability", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Intact, static, dynamic and damage stability: difference and criteria", "cross_family": false }, { "answer_id": "SCS-DEF-001", "score": 0.4744611859321594, "sibling_score": null, "answer_score": 0.4744611859321594, "sibling_qid": "", "sibling_text": "1 what is intact stability stability of theundamaged watertightship the opposite case to damage stability which assumes flooding ability to return to the initial equilibrium upright after a heeling force is removed", "sibling_family": "", "via": "answer_title", "answer_title": "1. What is intact stability?", "cross_family": false } ] }, { "qid": "MUM-2025-06-0324-Q010", "text": ") what is margin line.", "family": "SOLAS", "subtopic": "Margin Line / Subdivision", "tid": "MUM-2025-06-0324", "tray": "review", "candidates": [ { "answer_id": "MARGIN-LINE-001", "score": 0.6776018142700195, "sibling_score": 0.6776018142700195, "answer_score": 0.4313528537750244, "sibling_qid": "KOC-2026-08-2118-Q008", "sibling_text": "margin line explain", "sibling_family": "Ship Construction & Naval Architecture", "via": "sibling", "answer_title": "What is the margin line, and what is its purpose?", "cross_family": true }, { "answer_id": "MARGIN-LINE-002", "score": 0.44599417746067044, "sibling_score": null, "answer_score": 0.44599417746067044, "sibling_qid": "", "sibling_text": "why is the margin line imaginary and not permanently marked it is adesign calculation referenceused in subdivision and damage stability work not an operational limit the crew operate to themarkedlines deck line plimsoll load line marks draught marks intact loading", "sibling_family": "", "via": "answer_title", "answer_title": "Why is the margin line imaginary, and not permanently marked?", "cross_family": false }, { "answer_id": "MARGIN-LINE-006", "score": 0.41542405784130093, "sibling_score": null, "answer_score": 0.41542405784130093, "sibling_qid": "", "sibling_text": "handling ambiguous or compound prompts margin line bare prompts imaginary line marpol line a mishearing of margin line almost always mean the margin line declarethe reading answer andoffer to redirect core fact to deliver 76 mm below the bulkhead deck at side damaged condition limit waterline unmarked calculation line", "sibling_family": "", "via": "answer_title", "answer_title": "Handling ambiguous or compound prompts (margin line)", "cross_family": false } ] }, { "qid": "MUM-2025-06-0328-Q005", "text": "What is safety and what is security.", "family": "Risk & Safety Management", "subtopic": "Safety vs Security", "tid": "MUM-2025-06-0328", "tray": "review", "candidates": [ { "answer_id": "MR-DS-PV-B-003", "score": 0.6866791248321533, "sibling_score": 0.6866791248321533, "answer_score": null, "sibling_qid": "MUM-2026-07-3681-Q004", "sibling_text": "safety vs security", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "3. Alarms, trips, valves, and abnormal conditions of the deck seal", "cross_family": false }, { "answer_id": "TNK-SAFE-BF26-003", "score": 0.5590543746948242, "sibling_score": 0.5590543746948242, "answer_score": null, "sibling_qid": "MUM-2026-04-0883-Q002", "sibling_text": "safeties onboard", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "What safeties, including electrical safeties and Ex ratings, are provided on the deck of a tanker?", "cross_family": false }, { "answer_id": "CO2-SYS-005", "score": 0.5512834787368774, "sibling_score": 0.5512834787368774, "answer_score": null, "sibling_qid": "MUM-2023-06-0104-Q016", "sibling_text": "safeties of system", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 system safeties, CO2-room requirements, alarms and ventilation", "cross_family": true } ] }, { "qid": "MUM-2025-06-0328-Q007", "text": "DMLC part 1 and part 2.", "family": "MLC", "subtopic": "MLC / DMLC / Work-Rest", "tid": "MUM-2025-06-0328", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.7216465473175049, "sibling_score": 0.7216465473175049, "answer_score": 0.2916379481554031, "sibling_qid": "MUM-2026-05-3314-Q007", "sibling_text": "dmlc part 1 and part 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "DCP-PPC-003", "score": 0.2348286911845207, "sibling_score": null, "answer_score": 0.2348286911845207, "sibling_qid": "", "sibling_text": "c3 dcp general working advantages disadvantages common issues", "sibling_family": "", "via": "answer_title", "answer_title": "C3 — DCP — General Working, Advantages, Disadvantages & Common Issues", "cross_family": false }, { "answer_id": "XFMR-THY-G-002", "score": 0.21257343739271164, "sibling_score": null, "answer_score": 0.21257343739271164, "sibling_qid": "", "sibling_text": "2 transformer parallel operation", "sibling_family": "", "via": "answer_title", "answer_title": "2. Transformer parallel operation", "cross_family": false } ] }, { "qid": "MUM-2025-06-0328-Q010", "text": "Major non conformity .", "family": "ISM Code", "subtopic": "Major / Minor NC", "tid": "MUM-2025-06-0328", "tray": "review", "candidates": [ { "answer_id": "ISMNC-002", "score": 0.7928184866905212, "sibling_score": 0.7928184866905212, "answer_score": 0.43916513323783873, "sibling_qid": "MUM-2026-08-3832-Q001", "sibling_text": "major non conformity", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a major non-conformity under the ISM Code? Give the definition and name some.", "cross_family": false }, { "answer_id": "ISMNC-003", "score": 0.7415621876716614, "sibling_score": 0.7415621876716614, "answer_score": 0.46268688440322875, "sibling_qid": "MUM-2025-01-0238-Q006", "sibling_text": "major non conformity and non conformity", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Differentiate between a major non-conformity and a non-conformity under the ISM Code.", "cross_family": false }, { "answer_id": "ISMNC-005", "score": 0.6835760474205017, "sibling_score": 0.6835760474205017, "answer_score": 0.49611389338970185, "sibling_qid": "KOL-2025-04-0931-Q012", "sibling_text": "example for major non confirmity", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Give examples of a non-conformity and of a major non-conformity.", "cross_family": false } ] }, { "qid": "MUM-2025-06-0330-Q002", "text": "MLC detainable deficiency?", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2025-06-0330", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-007", "score": 0.7804800868034363, "sibling_score": 0.7804800868034363, "answer_score": 0.37146462202072145, "sibling_qid": "MUM-2026-01-0701-Q002", "sibling_text": "detainable deficiency of mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false }, { "answer_id": "DCG-002", "score": 0.5824384689331055, "sibling_score": 0.5824384689331055, "answer_score": 0.34852611422538754, "sibling_qid": "KOL-2025-04-0931-Q013", "sibling_text": "example for detainable deficiency", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What are the reasons for PSC detention and what is a detainable deficiency? Which engine-room deficiencies can detain your ship, which conventions can ground a detainable deficiency, and what is banning by PSC?", "cross_family": true }, { "answer_id": "AII-DISCH-007", "score": 0.36009720265865325, "sibling_score": null, "answer_score": 0.36009720265865325, "sibling_qid": "", "sibling_text": "what deficiency may be raised when the annex ii discharge criteria are not satisfied a non compliant discharge is an illegal nls discharge not a minor defect psc deficiency discharge outside reg 13 inadequate stripping cargo record book gaps or false entries potentially detainable", "sibling_family": "", "via": "answer_title", "answer_title": "What deficiency may be raised when the Annex II discharge criteria are not satisfied", "cross_family": false } ] }, { "qid": "MUM-2025-06-0330-Q003", "text": "Major non conformity?", "family": "ISM Code", "subtopic": "Major / Minor NC", "tid": "MUM-2025-06-0330", "tray": "review", "candidates": [ { "answer_id": "ISMNC-002", "score": 0.7928184866905212, "sibling_score": 0.7928184866905212, "answer_score": 0.43916513323783873, "sibling_qid": "MUM-2026-08-3832-Q001", "sibling_text": "major non conformity", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a major non-conformity under the ISM Code? Give the definition and name some.", "cross_family": false }, { "answer_id": "ISMNC-003", "score": 0.7415621876716614, "sibling_score": 0.7415621876716614, "answer_score": 0.46268688440322875, "sibling_qid": "MUM-2025-01-0238-Q006", "sibling_text": "major non conformity and non conformity", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Differentiate between a major non-conformity and a non-conformity under the ISM Code.", "cross_family": false }, { "answer_id": "ISMNC-005", "score": 0.6835760474205017, "sibling_score": 0.6835760474205017, "answer_score": 0.49611389338970185, "sibling_qid": "KOL-2025-04-0931-Q012", "sibling_text": "example for major non confirmity", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Give examples of a non-conformity and of a major non-conformity.", "cross_family": false } ] }, { "qid": "MUM-2025-06-0332-Q001", "text": "type of vsl sailed, engine type.", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "MUM-2025-06-0332", "tray": "review", "candidates": [ { "answer_id": "ISM-ELEM-001", "score": 0.7052481174468994, "sibling_score": 0.7052481174468994, "answer_score": null, "sibling_qid": "MUM-2025-10-0525-Q001", "sibling_text": "type of vsl sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.695113480091095, "sibling_score": 0.695113480091095, "answer_score": null, "sibling_qid": "MUM-2026-04-1007-Q002", "sibling_text": "type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.6053994297981262, "sibling_score": 0.6053994297981262, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q001", "sibling_text": "type of ship sailed and engines details", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false } ] }, { "qid": "MUM-2025-06-0332-Q003", "text": "What is MNC and how to deal with it.", "family": "ISM Code", "subtopic": "Major / Minor NC", "tid": "MUM-2025-06-0332", "tray": "new", "candidates": [ { "answer_id": "ISMNC-006", "score": 0.552070140838623, "sibling_score": 0.552070140838623, "answer_score": null, "sibling_qid": "MUM-2025-07-0361-Q010", "sibling_text": "how to deal with mnc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Your ship has been issued a major non-conformity: what action do you take, what are the repercussions, and can the ship sail with it?", "cross_family": false }, { "answer_id": "ISMNC-002", "score": 0.5499236583709717, "sibling_score": 0.5499236583709717, "answer_score": null, "sibling_qid": "MUM-2023-03-0091-Q009", "sibling_text": "define mnc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a major non-conformity under the ISM Code? Give the definition and name some.", "cross_family": false }, { "answer_id": "ISMNC-003", "score": 0.5156851410865784, "sibling_score": 0.5156851410865784, "answer_score": null, "sibling_qid": "MUM-2025-07-0350-Q003", "sibling_text": "mnc and nc define", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Differentiate between a major non-conformity and a non-conformity under the ISM Code.", "cross_family": false } ] }, { "qid": "MUM-2025-06-0332-Q004", "text": "SCR, what is it, what all are the records and documents to be kept under this.", "family": "Surveys - Statutory", "subtopic": "Safety Construction / Cargo Safety Cert", "tid": "MUM-2025-06-0332", "tray": "review", "candidates": [ { "answer_id": "A6-NSEC-003", "score": 0.6974480152130127, "sibling_score": 0.6974480152130127, "answer_score": null, "sibling_qid": "MUM-2025-10-0525-Q001S5", "sibling_text": "scr what is it what all are the records and documents to be kept under this", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "NOx — formation, limits & reduction (SCR / EGR)", "cross_family": true }, { "answer_id": "AV6-P03-03", "score": 0.6226381063461304, "sibling_score": 0.6226381063461304, "answer_score": null, "sibling_qid": "MUM-2025-12-0632-Q008", "sibling_text": "scr what documents", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SCR operation, urea/ammonia dosing and ammonia slip — 2/E responsibilities", "cross_family": true }, { "answer_id": "AV6-P03-02", "score": 0.49256631731987, "sibling_score": 0.49256631731987, "answer_score": null, "sibling_qid": "CHE-2026-05-0533-Q005", "sibling_text": "explain about scr", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SCR for marine NOx control — meaning, working principle, chemistry and system components", "cross_family": true } ] }, { "qid": "MUM-2025-06-0332-Q010", "text": "what is dynamic load testing. What all are the checks.", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Lifeboat Static / Dynamic Test", "tid": "MUM-2025-06-0332", "tray": "review", "candidates": [ { "answer_id": "LBT-TEST-B-001", "score": 0.7184407114982605, "sibling_score": 0.7184407114982605, "answer_score": null, "sibling_qid": "KOL-2024-12-0896-Q005", "sibling_text": "dynamic and static load testing and xx met", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat/davit load-test proof loads and test conditions", "cross_family": false }, { "answer_id": "LB-SDT-A-001", "score": 0.7030419707298279, "sibling_score": 0.7030419707298279, "answer_score": null, "sibling_qid": "CHE-2026-08-0672-Q004", "sibling_text": "dynamic and static load test", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat static and dynamic test — purpose and procedure", "cross_family": false }, { "answer_id": "LBT-TEST-B-005", "score": 0.619846761226654, "sibling_score": 0.619846761226654, "answer_score": 0.4390094429254532, "sibling_qid": "MUM-2025-08-0430-Q001", "sibling_text": "life boat testing dynamic test and static test what to check in dynamic test", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Checks after the dynamic/overload load test", "cross_family": false } ] }, { "qid": "MUM-2025-06-0334-Q001", "text": "Type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-06-0334", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8366076350212097, "sibling_score": 0.8366076350212097, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8017546534538269, "sibling_score": 0.8017546534538269, "answer_score": 0.5474729001522064, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8005340099334717, "sibling_score": 0.8005340099334717, "answer_score": 0.5217549681663513, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2025-06-0334-Q002", "text": "Mainengine type", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2025-06-0334", "tray": "review", "candidates": [ { "answer_id": "ENG-NOM-005", "score": 0.7580106258392334, "sibling_score": 0.7580106258392334, "answer_score": null, "sibling_qid": "MUM-2026-09-3880-Q001", "sibling_text": "main engine type", "sibling_family": "2-Stroke - Operations & General", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true }, { "answer_id": "CTRL-TL-002", "score": 0.7376183867454529, "sibling_score": 0.7376183867454529, "answer_score": null, "sibling_qid": "MUM-2026-03-1987-Q001", "sibling_text": "type of main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Function of a controller, and types used on board", "cross_family": false }, { "answer_id": "ETP-344-P03-001", "score": 0.7053272724151611, "sibling_score": 0.7053272724151611, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false } ] }, { "qid": "MUM-2025-06-0335-Q004S2", "text": "Management review ?", "family": "", "subtopic": "", "tid": "MUM-2025-06-0335", "tray": "review", "candidates": [ { "answer_id": "ISM-ELEM-006", "score": 0.7685015201568604, "sibling_score": 0.7685015201568604, "answer_score": 0.4947307169437408, "sibling_qid": "MUM-2025-06-0335-Q001", "sibling_text": "management review", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Master’s review & management review", "cross_family": false }, { "answer_id": "ISM-AUD-P02-006", "score": 0.7685015201568604, "sibling_score": 0.7685015201568604, "answer_score": 0.47995310723781587, "sibling_qid": "KOL-2026-05-0059-Q006", "sibling_text": "management review", "sibling_family": "", "via": "sibling", "answer_title": "Master's review, company / management review and change management", "cross_family": false }, { "answer_id": "ISM-DPA-006", "score": 0.41723220348358153, "sibling_score": null, "answer_score": 0.41723220348358153, "sibling_qid": "", "sibling_text": "presenting the engine room in a management review meeting with the dpa present by priority safety critical and statutory items first open defects overdue critical pms alarm trip history", "sibling_family": "", "via": "answer_title", "answer_title": "Presenting the engine room in a management review meeting with the DPA", "cross_family": false } ] }, { "qid": "MUM-2025-06-0335-Q004S3", "text": "Angle of loll and its significance ?", "family": "", "subtopic": "Angle of Loll / Stiff & Tender", "tid": "MUM-2025-06-0335", "tray": "review", "candidates": [ { "answer_id": "LOLL-CORE-P01-001", "score": 0.6579281091690063, "sibling_score": 0.6579281091690063, "answer_score": 0.5128372013568878, "sibling_qid": "MUM-2024-04-0168-Q010", "sibling_text": "angle of loll explain", "sibling_family": "", "via": "sibling", "answer_title": "What is angle of loll?", "cross_family": false }, { "answer_id": "LOLL-P02-001", "score": 0.6560176610946655, "sibling_score": 0.6560176610946655, "answer_score": 0.480033004283905, "sibling_qid": "CHE-2026-05-0580-Q001", "sibling_text": "significance of angle of loll", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "4. Significance of angle of loll — and why it occurs", "cross_family": false }, { "answer_id": "LOLL-P02-002", "score": 0.5063307851552963, "sibling_score": null, "answer_score": 0.5063307851552963, "sibling_qid": "", "sibling_text": "1 correcting angle of loll the ballasting sequence loll is a small negative gm g above m unstable upright settles where gz returns to zero with the curve rising calculation hook for a wall sided estimate tan of the loll angle equals the square root of minus 2 gm over bm using the negative upright gm", "sibling_family": "", "via": "answer_title", "answer_title": "1. Correcting angle of loll — the ballasting sequence", "cross_family": false } ] }, { "qid": "MUM-2025-06-0336-Q005", "text": "Risk assessment", "family": "Risk & Safety Management", "subtopic": "Enclosed Space Entry", "tid": "MUM-2025-06-0336", "tray": "review", "candidates": [ { "answer_id": "RA-MGMT-B-001", "score": 0.7979671359062195, "sibling_score": 0.7979671359062195, "answer_score": null, "sibling_qid": "KOL-2022-09-3563-Q003", "sibling_text": "risc assessment", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "How is a shipboard risk assessment prepared and carried out?", "cross_family": false }, { "answer_id": "RA-MGMT-A-001", "score": 0.7892582416534424, "sibling_score": 0.7892582416534424, "answer_score": 0.5663028657436371, "sibling_qid": "MUM-2026-08-3829-Q002", "sibling_text": "risk assessment", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "What is risk, what is hazard, and what is risk assessment?", "cross_family": false }, { "answer_id": "LVC-577-001", "score": 0.582059758901596, "sibling_score": null, "answer_score": 0.582059758901596, "sibling_qid": "", "sibling_text": "define likelihood and consequence in risk assessment risk has two elements likelihood and consequence the matrix rating commonly combines them by multiplying where the sms uses that method likelihood the chance probability the harm occurs how likely how often", "sibling_family": "", "via": "answer_title", "answer_title": "Define likelihood and consequence in risk assessment", "cross_family": false } ] }, { "qid": "MUM-2025-06-0337-Q002", "text": "Type of ship- LPG", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-06-0337", "tray": "review", "candidates": [ { "answer_id": "LPG-LNG-009", "score": 0.8142086863517761, "sibling_score": 0.8142086863517761, "answer_score": 0.50342176258564, "sibling_qid": "CHE-2026-04-0164-Q001", "sibling_text": "type of ship sailed lpg carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Gas-carrier fundamentals and ship-specific traps", "cross_family": false }, { "answer_id": "IGC-GAS-004", "score": 0.7347649335861206, "sibling_score": 0.7347649335861206, "answer_score": null, "sibling_qid": "KOL-2025-08-1014-Q002", "sibling_text": "type of ship sailed lpg classification of gas carriers of as per igc code", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Ship-type classification under the IGC Code — 1G / 2G / 2PG / 3G", "cross_family": true }, { "answer_id": "LPG-LNG-001", "score": 0.7067189812660217, "sibling_score": 0.7067189812660217, "answer_score": null, "sibling_qid": "MUM-2026-09-3961-Q001", "sibling_text": "how lpg ship differ from other ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "LPG vs LNG – properties, carriage and comparison", "cross_family": false } ] }, { "qid": "MUM-2025-06-0337-Q007", "text": "Safety of compressor and motor room- (motor room high pressure than compressor room)", "family": "", "subtopic": "", "tid": "MUM-2025-06-0337", "tray": "review", "candidates": [ { "answer_id": "IGC-GAS-013", "score": 0.8555095195770264, "sibling_score": 0.8555095195770264, "answer_score": 0.5700897932052612, "sibling_qid": "KOL-2023-10-0776-Q008", "sibling_text": "safety of compressor and motor room motor room high pressure than compressor room", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Cargo machinery air-lock, gas-tight separation and over-pressure protection", "cross_family": false }, { "answer_id": "FIXED-FF-B-002", "score": 0.6718412041664124, "sibling_score": 0.6718412041664124, "answer_score": null, "sibling_qid": "MUM-2022-07-0015-Q011", "sibling_text": "compressor room and motor room fffs", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Local fixed arrangements for boiler fronts, galley fryers, paint lockers, ECRs and small special spaces", "cross_family": false }, { "answer_id": "MAC-598-002", "score": 0.6571979522705078, "sibling_score": 0.6571979522705078, "answer_score": null, "sibling_qid": "KOC-2025-12-1653-Q003", "sibling_text": "electrical safeties in compressor room", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "The main air compressor circuit — power and control circuits, starting, and electrical safeties in the compressor room", "cross_family": false } ] }, { "qid": "MUM-2025-06-0337-Q008", "text": "How pressure is maintained in both room and value of pressures?", "family": "", "subtopic": "", "tid": "MUM-2025-06-0337", "tray": "review", "candidates": [ { "answer_id": "IGC-GAS-013", "score": 0.7245386242866516, "sibling_score": 0.7245386242866516, "answer_score": null, "sibling_qid": "KOL-2023-10-0776-Q009", "sibling_text": "how pressure is maintained in both room and value of pressures", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Cargo machinery air-lock, gas-tight separation and over-pressure protection", "cross_family": false }, { "answer_id": "CO2-SYS-005", "score": 0.5352182388305664, "sibling_score": 0.5352182388305664, "answer_score": null, "sibling_qid": "KOC-2026-03-0843-Q005", "sibling_text": "fixed co2 system relief vv lifting pressure how the pressure rises", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 system safeties, CO2-room requirements, alarms and ventilation", "cross_family": false }, { "answer_id": "MARVS-TANK-001", "score": 0.5131275057792664, "sibling_score": 0.5131275057792664, "answer_score": null, "sibling_qid": "KOL-2023-10-0776-Q011", "sibling_text": "marvs location pressure setting value purpose and how it works", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "MARVS — location, pressure setting, purpose, drawing and how the safety valve works", "cross_family": false } ] }, { "qid": "MUM-2025-06-0337-Q009", "text": "Why two doors in motor room and how pressure lost is avoided?", "family": "", "subtopic": "", "tid": "MUM-2025-06-0337", "tray": "review", "candidates": [ { "answer_id": "IGC-GAS-013", "score": 0.6848059296607971, "sibling_score": 0.6848059296607971, "answer_score": 0.4100787580013275, "sibling_qid": "KOL-2023-10-0776-Q010", "sibling_text": "why two doors in motor room and how pressure lost is avoided", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Cargo machinery air-lock, gas-tight separation and over-pressure protection", "cross_family": false }, { "answer_id": "WTD-005", "score": 0.489339679479599, "sibling_score": 0.489339679479599, "answer_score": 0.37210896611213684, "sibling_qid": "KOC-2025-03-0574-Q005", "sibling_text": "e r to s g door requirements and why two doors", "sibling_family": "SOLAS - Watertight & Closing Appliances", "via": "sibling", "answer_title": "Engine-room to steering-gear-room access: the air-lock and why two doors", "cross_family": false }, { "answer_id": "CRD-002", "score": 0.4579100012779236, "sibling_score": 0.4579100012779236, "answer_score": null, "sibling_qid": "KOL-2021-08-1615-Q002", "sibling_text": "cranckcase door area requirements pressure operated", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Regulations & criteria — applicability, area, material, arrester, opening pressure", "cross_family": false } ] }, { "qid": "MUM-2025-06-0337-Q013", "text": "Fire fighting on board?", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-06-0337", "tray": "review", "candidates": [ { "answer_id": "FIXED-FF-B-001", "score": 0.7414312362670898, "sibling_score": 0.7414312362670898, "answer_score": 0.5420996844768524, "sibling_qid": "KOL-2023-10-0776-Q014", "sibling_text": "fire fighting on board", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fixed fire-fighting systems carried onboard and the risks they protect", "cross_family": true }, { "answer_id": "DCP-FIXED-A-001", "score": 0.7340521812438965, "sibling_score": 0.7340521812438965, "answer_score": null, "sibling_qid": "MUM-2026-03-2929-Q002", "sibling_text": "fixed fire fighting on deck", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Draw and explain the fixed DCP/dry-powder deck fire-fighting system", "cross_family": true }, { "answer_id": "FFF-A-001", "score": 0.7304612398147583, "sibling_score": 0.7304612398147583, "answer_score": null, "sibling_qid": "MUM-2025-12-0618-Q014", "sibling_text": "fire fighting on deck", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fixed firefighting on deck and in the cargo area — tankers, chemical and gas carriers", "cross_family": true } ] }, { "qid": "MUM-2025-06-0337-Q016", "text": "What arrangement after leakage in cargo hold? (Answer- eductor drive to empty cargo hold space)", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-06-0337", "tray": "review", "candidates": [ { "answer_id": "CPFE-583-019", "score": 0.8465338945388794, "sibling_score": 0.8465338945388794, "answer_score": null, "sibling_qid": "KOL-2023-10-0776-Q017", "sibling_text": "what arrangement after leakage in cargo hold answer eductor drive to empty cargo hold space", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "The eductor — principle, and what drives it", "cross_family": true }, { "answer_id": "TCM-374-006", "score": 0.61444491147995, "sibling_score": 0.61444491147995, "answer_score": 0.4775898367166519, "sibling_qid": "KOC-2023-12-1823-Q002", "sibling_text": "how do you strip remaining cargo in the tank procedure", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Cargo stripping and tank residues (bellmouth and discharge limits)", "cross_family": true }, { "answer_id": "CPFE-583-012", "score": 0.6129763126373291, "sibling_score": 0.6129763126373291, "answer_score": null, "sibling_qid": "MUM-2026-06-3490-Q010", "sibling_text": "cargo pump purging", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Seal arrangement, cofferdam, and how leakage is detected", "cross_family": true } ] }, { "qid": "MUM-2025-06-0337-Q017", "text": "What drives the eductor?( answer- for water leakage, fire pump and for cargo leakage cargo pump, both are seperate system)", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-06-0337", "tray": "review", "candidates": [ { "answer_id": "CPFE-583-019", "score": 0.8672852516174316, "sibling_score": 0.8672852516174316, "answer_score": null, "sibling_qid": "KOL-2023-10-0776-Q018", "sibling_text": "what drives the eductor answer for water leakage fire pump and for cargo leakage cargo pump both are seperate system", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "The eductor — principle, and what drives it", "cross_family": true }, { "answer_id": "CPFE-583-002", "score": 0.6684280633926392, "sibling_score": 0.6684280633926392, "answer_score": 0.5288553684949875, "sibling_qid": "KOC-2024-04-0333-Q002", "sibling_text": "cargo pump type why electric motor as prime mover why not hydraulic", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Why a submerged hydraulic pump on a product or chemical tanker — and what makes a cargo pump different", "cross_family": true }, { "answer_id": "CPFE-583-001", "score": 0.6549015641212463, "sibling_score": 0.6549015641212463, "answer_score": null, "sibling_qid": "CHE-2026-04-0159-Q003", "sibling_text": "cargo pump type", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "The Framo system — what it is, how it works, and the driving mechanism", "cross_family": true } ] }, { "qid": "MUM-2025-06-0337-Q020", "text": "How this value is attained?", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-06-0337", "tray": "new", "candidates": [ { "answer_id": "CII-CALC-P03-001", "score": 0.5410436391830444, "sibling_score": 0.5410436391830444, "answer_score": null, "sibling_qid": "MUM-2022-11-2715-Q006", "sibling_text": "how is it calculated", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Calculating attained & required CII — formula, unit, reduction factor, measurements", "cross_family": true }, { "answer_id": "AV6-P05-01", "score": 0.5244642496109009, "sibling_score": 0.5244642496109009, "answer_score": null, "sibling_qid": "MUM-2026-04-0925-Q006", "sibling_text": "seemp part 2 what and how values are calculated when they are submitted", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP Part II — IMO DCS plan and contents", "cross_family": true }, { "answer_id": "EGTP-P02-004", "score": 0.5058861970901489, "sibling_score": 0.5058861970901489, "answer_score": null, "sibling_qid": "KOL-2016-08-2068-Q016", "sibling_text": "compression ratio def value", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Compression Ratio — Value and Why It Falls With Time", "cross_family": true } ] }, { "qid": "MUM-2025-06-0971-Q001", "text": "Details of last 2 ships ( ME, AE, BLR)", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "MUM-2025-06-0971", "tray": "new", "candidates": [ { "answer_id": "LLST-AB-001", "score": 0.4856151342391968, "sibling_score": 0.4856151342391968, "answer_score": 0.3228539824485779, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "UPS-387-002", "score": 0.4836553931236267, "sibling_score": 0.4836553931236267, "answer_score": null, "sibling_qid": "MUM-2026-09-3923-Q004", "sibling_text": "types of ups on your last ship", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Which UPS is used on board, and on what loads?", "cross_family": true }, { "answer_id": "SOLAS12-BC-A-001", "score": 0.48171064257621765, "sibling_score": 0.48171064257621765, "answer_score": null, "sibling_qid": "MUM-2026-04-2958-Q001", "sibling_text": "ship done bulk carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "SOLAS definition and scope of a bulk carrier", "cross_family": false } ] }, { "qid": "MUM-2025-06-0971-Q002", "text": "Fuel injection method in ME engine.", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Injection System", "tid": "MUM-2025-06-0971", "tray": "review", "candidates": [ { "answer_id": "FIS-221-002", "score": 0.7444014549255371, "sibling_score": 0.7444014549255371, "answer_score": 0.5994178354740143, "sibling_qid": "MUM-2024-10-0963-Q004", "sibling_text": "explain mec engine fuel injection", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How fuel injection takes place in an ME / ME-C / ME-B engine", "cross_family": false }, { "answer_id": "CR-248-001", "score": 0.7162099480628967, "sibling_score": 0.7162099480628967, "answer_score": null, "sibling_qid": "MUM-2025-05-0277-Q010", "sibling_text": "how fuel injection takes place in me c engine", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "The common rail fuel injection system — layout, working sequence, rail valves, timing & quantity control", "cross_family": false }, { "answer_id": "CR-248-002", "score": 0.7050473690032959, "sibling_score": 0.7050473690032959, "answer_score": 0.5725551515817642, "sibling_qid": "KOL-2023-01-1721-Q004", "sibling_text": "electronic fuel injection in me", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How fuel is injected in electronically controlled ME / RT-flex engines — how rail or hydraulic pressure produces injection", "cross_family": false } ] }, { "qid": "MUM-2025-06-0971-Q003", "text": "Why engine driven and electric driven pumps are given for the same engine. When does the electric one cut off.", "family": "", "subtopic": "", "tid": "MUM-2025-06-0971", "tray": "new", "candidates": [ { "answer_id": "COPT-BF043-002", "score": 0.6163467764854431, "sibling_score": 0.6163467764854431, "answer_score": null, "sibling_qid": "CHE-2025-08-0049-Q003", "sibling_text": "why copt using compare to electric pump", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "2. Why a steam turbine (COPT) instead of an electric cargo pump", "cross_family": false }, { "answer_id": "AEFP-471-007", "score": 0.6055657863616943, "sibling_score": 0.6055657863616943, "answer_score": 0.5127105414867401, "sibling_qid": "KOL-2025-07-3840-Q003", "sibling_text": "how do you cut off fuel pump in aux engines", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How do you cut off the fuel pump in an auxiliary engine?", "cross_family": false }, { "answer_id": "CPFE-583-002", "score": 0.605167031288147, "sibling_score": 0.605167031288147, "answer_score": 0.47814835608005524, "sibling_qid": "KOC-2024-04-0333-Q002", "sibling_text": "cargo pump type why electric motor as prime mover why not hydraulic", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Why a submerged hydraulic pump on a product or chemical tanker — and what makes a cargo pump different", "cross_family": false } ] }, { "qid": "MUM-2025-06-0971-Q005", "text": "Purpose of crank angle encoder, me-v and how is slow streaming carried out.", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Angle Encoder", "tid": "MUM-2025-06-0971", "tray": "new", "candidates": [ { "answer_id": "ANG-ENC-003", "score": 0.5993391871452332, "sibling_score": 0.5993391871452332, "answer_score": 0.4632389187812805, "sibling_qid": "KOC-2022-06-0964-Q020", "sibling_text": "how is angle encoder working how does it measure fine changes in crank angle", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Working principle: sensing crank angle, speed and direction", "cross_family": false }, { "answer_id": "ANG-ENC-006", "score": 0.5744740962982178, "sibling_score": 0.5744740962982178, "answer_score": null, "sibling_qid": "KOC-2025-02-1028-Q008", "sibling_text": "how timing achieved in mec engine explain angle encoder", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Using the signal: ME/ME-C timing, manoeuvring, injection and exhaust valve", "cross_family": false }, { "answer_id": "ANG-ENC-004", "score": 0.5521165132522583, "sibling_score": 0.5521165132522583, "answer_score": null, "sibling_qid": "MUM-2026-05-3145-Q004", "sibling_text": "crank angle encoder overhaul manual procedure", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Checks, testing, calibration and maintenance", "cross_family": false } ] }, { "qid": "MUM-2025-06-0971-Q006", "text": "Explain Stribeck curve", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Bearings / Lubrication", "tid": "MUM-2025-06-0971", "tray": "new", "candidates": [ { "answer_id": "STAB-GZ-P01-001", "score": 0.47072312235832214, "sibling_score": 0.47072312235832214, "answer_score": 0.32417762875556944, "sibling_qid": "MUM-2026-04-0916-Q005", "sibling_text": "gz curve explain", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Draw and explain the statical stability (GZ) curve", "cross_family": true }, { "answer_id": "CRK-DEFL-005", "score": 0.3445489943027496, "sibling_score": null, "answer_score": 0.3445489943027496, "sibling_qid": "", "sibling_text": "plotting and interpreting the deflection curve plot vertical deflection per throw on the y axis against cylinder unit number on the x axis horizontal deflection can be plotted the same way for side wear datum the from new set is the reference catenary every later curve is read against it change matters more than absolute value", "sibling_family": "", "via": "answer_title", "answer_title": "Plotting and interpreting the deflection curve", "cross_family": false }, { "answer_id": "DROOP-002", "score": 0.3432111874222755, "sibling_score": null, "answer_score": 0.3432111874222755, "sibling_qid": "", "sibling_text": "speed droop characteristic the curve and what it shows axes frequency speed vertical vs load power or load horizontal shape for the oral graph normally a straight downward sloping line actual governor rack behaviour may not be perfectly linear", "sibling_family": "", "via": "answer_title", "answer_title": "Speed-droop characteristic — the curve and what it shows", "cross_family": false } ] }, { "qid": "MUM-2025-06-0971-Q008", "text": "Safety vv on blr.", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2025-06-0971", "tray": "new", "candidates": [ { "answer_id": "ACRV-005", "score": 0.5347749590873718, "sibling_score": 0.5347749590873718, "answer_score": null, "sibling_qid": "MUM-2023-03-1042-Q003", "sibling_text": "safety relief v v difference", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": false }, { "answer_id": "HV-SYS-P05-001", "score": 0.462568461894989, "sibling_score": 0.462568461894989, "answer_score": null, "sibling_qid": "KOL-2021-02-2423-Q003", "sibling_text": "hv additional safeties", "sibling_family": "", "via": "sibling", "answer_title": "HV switchboard (MSB): safeties, interlocks and protective features", "cross_family": false }, { "answer_id": "AVR-EXC-H-005", "score": 0.4622197151184082, "sibling_score": 0.4622197151184082, "answer_score": null, "sibling_qid": "KOL-2025-03-2768-Q005", "sibling_text": "avr safeties", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "AVR / excitation safeties and protections", "cross_family": true } ] }, { "qid": "MUM-2025-06-0971-Q010", "text": "Priming in boiler", "family": "Boilers - Operations & Firing", "subtopic": "Boiler Operations", "tid": "MUM-2025-06-0971", "tray": "review", "candidates": [ { "answer_id": "BLR-OPS-006", "score": 0.6571292877197266, "sibling_score": 0.6571292877197266, "answer_score": 0.48126271963119505, "sibling_qid": "MUM-2023-09-1061-Q002", "sibling_text": "warming up of boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Explain the warming up of a boiler.", "cross_family": false }, { "answer_id": "BLR-OPS-001", "score": 0.644145667552948, "sibling_score": 0.644145667552948, "answer_score": 0.4660068929195404, "sibling_qid": "KOL-2022-02-3516-Q002", "sibling_text": "boiler cold starting", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Explain the procedure for raising steam in an auxiliary boiler from cold.", "cross_family": false }, { "answer_id": "BLR-OPS-004", "score": 0.635783851146698, "sibling_score": 0.635783851146698, "answer_score": 0.4603630304336548, "sibling_qid": "KOL-2019-03-3220-Q004", "sibling_text": "boiler starting procedure from laid up condition", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Explain the procedure for starting a boiler from a laid-up condition.", "cross_family": false } ] }, { "qid": "MUM-2025-06-0971-Q011", "text": "Pinch point and panting", "family": "Ship Construction & Stability", "subtopic": "", "tid": "MUM-2025-06-0971", "tray": "new", "candidates": [ { "answer_id": "PPS-230-001", "score": 0.5399945974349976, "sibling_score": 0.5399945974349976, "answer_score": 0.30701668560504913, "sibling_qid": "KOL-2024-11-0884-Q001", "sibling_text": "panting panting arrangements stresses due to panting", "sibling_family": "", "via": "sibling", "answer_title": "Panting: what it is and how the ship is protected", "cross_family": false }, { "answer_id": "PPS-230-004", "score": 0.5184563398361206, "sibling_score": 0.5184563398361206, "answer_score": null, "sibling_qid": "CHE-2025-09-0059-Q001", "sibling_text": "panting and pounding what arrangement is there to reduce", "sibling_family": "", "via": "sibling", "answer_title": "Forward strengthening to resist pounding / slamming", "cross_family": false }, { "answer_id": "PPS-230-002", "score": 0.4946592450141907, "sibling_score": 0.4946592450141907, "answer_score": null, "sibling_qid": "KOL-2021-08-0539-Q001", "sibling_text": "panting panting beam", "sibling_family": "", "via": "sibling", "answer_title": "Panting beams and panting stringers: purpose in the forward structure", "cross_family": false } ] }, { "qid": "MUM-2025-06-0971-Q012", "text": "Boiler blowback ( reasons and actions, went in detail for this)", "family": "Boilers - Operations & Firing", "subtopic": "Boiler Backfire / Blowback", "tid": "MUM-2025-06-0971", "tray": "review", "candidates": [ { "answer_id": "BBF-621-002", "score": 0.7146342396736145, "sibling_score": 0.7146342396736145, "answer_score": null, "sibling_qid": "KOC-2026-05-0004-Q007", "sibling_text": "boiler blow back reason and action", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Backfire has occurred on the oil-fired boiler. What are your actions as 2/E, and what instructions do you give the junior engineer or watchkeeper?", "cross_family": false }, { "answer_id": "BBF-621-001", "score": 0.6931048035621643, "sibling_score": 0.6931048035621643, "answer_score": 0.5004501193761826, "sibling_qid": "KOC-2023-02-0923-Q007", "sibling_text": "boiler blowback explanation reasons", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "What is boiler backfire / blowback? Explain the furnace event, the reasons, and how you prevent it.", "cross_family": false }, { "answer_id": "BFS-257-006", "score": 0.6369479298591614, "sibling_score": 0.6369479298591614, "answer_score": 0.5273631632328033, "sibling_qid": "MUM-2023-09-2193-Q006", "sibling_text": "boiler is back firing reasons", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler backfire / blowback / panting — causes, prevention, actions", "cross_family": false } ] }, { "qid": "MUM-2025-06-0972-Q003", "text": "Function of Tie rod in detail ?", "family": "2-Stroke - Structure & Tie Rods", "subtopic": "Tie Rod Function / Tightening / Removal", "tid": "MUM-2025-06-0972", "tray": "review", "candidates": [ { "answer_id": "TR-TB-PA-001", "score": 0.7009309530258179, "sibling_score": 0.7009309530258179, "answer_score": 0.4815672606229782, "sibling_qid": "KOC-2025-03-2061-Q004", "sibling_text": "tie rod function", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Function of tie rods and the firing-load path", "cross_family": true }, { "answer_id": "MAIN-BRG-D-006", "score": 0.683707058429718, "sibling_score": 0.683707058429718, "answer_score": 0.5198863297700882, "sibling_qid": "KOL-2025-06-1803-Q003", "sibling_text": "function of tie rod in detail", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Tie rods — function and tightening", "cross_family": true }, { "answer_id": "TIE-ROD-C-001", "score": 0.6611039638519287, "sibling_score": 0.6611039638519287, "answer_score": 0.5203409373760223, "sibling_qid": "KOC-2021-08-2024-Q003", "sibling_text": "tie rod bolt function he accepted only it is keeping all parts in compression the a frame and entablature will fail due to weak material if keeping it in tension", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Detecting a broken or slack tie rod — signs, and effects of running on", "cross_family": true } ] }, { "qid": "MUM-2025-06-0972-Q005S2", "text": "AE conrod check and Conrod ovality increased above limits Ur action. ?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE Conrod / Piston", "tid": "MUM-2025-06-0972", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-004", "score": 0.7939738631248474, "sibling_score": 0.7939738631248474, "answer_score": 0.42429559379816056, "sibling_qid": "KOC-2024-08-1855-Q008", "sibling_text": "ovality of conrod increased no spare connrod what are your actions", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE connecting-rod inspection — ovality, trueness, serrations, action if out of limit", "cross_family": false }, { "answer_id": "CRB-001", "score": 0.6589739322662354, "sibling_score": 0.6589739322662354, "answer_score": null, "sibling_qid": "CHE-2026-09-3938-Q003", "sibling_text": "con rod ovality check and limit", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "What checks are carried out on the connecting rod at decarbonisation? Explain the ovality and trueness checks — how many readings, at which positions, with what instrument, and the permissible limit.", "cross_family": false }, { "answer_id": "CRPIN-CHK-P01-002", "score": 0.6464904546737671, "sibling_score": 0.6464904546737671, "answer_score": null, "sibling_qid": "KOL-2025-07-3840-Q005", "sibling_text": "what action do you take if ovality is more", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankpin ovality — causes, effects, limit and immediate action", "cross_family": true } ] }, { "qid": "MUM-2025-06-0972-Q006", "text": "Checks on AE (on piston,piston ring,conrod,bottom end bearing etc) after decarb ?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Decarb Checks / Connecting Rod / Bottom End Bearing", "tid": "MUM-2025-06-0972", "tray": "review", "candidates": [ { "answer_id": "AEDEC-291-006", "score": 0.7503708004951477, "sibling_score": 0.7503708004951477, "answer_score": null, "sibling_qid": "MUM-2026-06-3662-Q002", "sibling_text": "3e doing decarb checks on piston", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "6. Clearances, measurements, piston checks, ovality", "cross_family": false }, { "answer_id": "AE-CRP-003", "score": 0.7451748251914978, "sibling_score": 0.7451748251914978, "answer_score": 0.5646037995815277, "sibling_qid": "KOC-2026-01-1989-Q007", "sibling_text": "what checks to be done piston of ae", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE piston, ring and groove checks; piston material", "cross_family": false }, { "answer_id": "AEDEC-291-003", "score": 0.7151018977165222, "sibling_score": 0.7151018977165222, "answer_score": null, "sibling_qid": "KOL-2020-01-3309-Q001", "sibling_text": "ae decarb checks", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "3. Pre-start checks after decarb / recommissioning", "cross_family": false } ] }, { "qid": "MUM-2025-06-0972-Q010", "text": "ME C engine how fuel injection take place?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Injection System", "tid": "MUM-2025-06-0972", "tray": "review", "candidates": [ { "answer_id": "CR-248-001", "score": 0.7445200085639954, "sibling_score": 0.7445200085639954, "answer_score": null, "sibling_qid": "MUM-2025-05-0277-Q010", "sibling_text": "how fuel injection takes place in me c engine", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "The common rail fuel injection system — layout, working sequence, rail valves, timing & quantity control", "cross_family": false }, { "answer_id": "FIS-221-002", "score": 0.7405697703361511, "sibling_score": 0.7405697703361511, "answer_score": 0.6244671046733856, "sibling_qid": "MUM-2024-10-0963-Q004", "sibling_text": "explain mec engine fuel injection", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How fuel injection takes place in an ME / ME-C / ME-B engine", "cross_family": false }, { "answer_id": "FIVA-220-002", "score": 0.7001319527626038, "sibling_score": 0.7001319527626038, "answer_score": null, "sibling_qid": "MUM-2024-02-1076-Q003", "sibling_text": "how fuel injection take place in me engine fiva", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "FIVA control of fuel injection — timing, quantity and actuation", "cross_family": false } ] }, { "qid": "MUM-2025-06-0975-Q001", "text": "Type of engine", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2025-06-0975", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.8005489110946655, "sibling_score": 0.8005489110946655, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.7930088639259338, "sibling_score": 0.7930088639259338, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-001", "score": 0.4521990418434143, "sibling_score": null, "answer_score": 0.4521990418434143, "sibling_qid": "", "sibling_text": "1 turbocharger type main engine vs generator engine compressor is centrifugal in both cases only the turbine type differs large slow speed main engine axial flow turbine single stage constant pressure system", "sibling_family": "", "via": "answer_title", "answer_title": "1. Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "MUM-2025-06-0975-Q006", "text": "Chain loose. Effects and procedure to tighten it.", "family": "2-Stroke - Components (Other)", "subtopic": "Chain Drive & Tensioning", "tid": "MUM-2025-06-0975", "tray": "new", "candidates": [ { "answer_id": "CHAIN-TENS-A-003", "score": 0.5678921341896057, "sibling_score": 0.5678921341896057, "answer_score": 0.3333185702562332, "sibling_qid": "CHE-2025-11-0456-Q002", "sibling_text": "loose chain tightening indication effect and tightening procedure", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Chain Tightening Procedure — MC / MC-C / ME", "cross_family": true }, { "answer_id": "CHAIN-TENS-C-001", "score": 0.5433794260025024, "sibling_score": 0.5433794260025024, "answer_score": 0.3066605180501938, "sibling_qid": "KOL-2025-07-3835-Q003", "sibling_text": "chain tightening remaining forgot will update later", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main-engine chain drive — how you know it is slack, and how you check and tighten it", "cross_family": true }, { "answer_id": "ANCH-C-003", "score": 0.5049947500228882, "sibling_score": 0.5049947500228882, "answer_score": 0.38661879152059553, "sibling_qid": "KOL-2025-11-3886-Q003", "sibling_text": "chain tightening procedure", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Chain tightening & relieving strain", "cross_family": true } ] }, { "qid": "MUM-2025-06-0976-Q002", "text": "Vessel type and Engine type", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "MUM-2025-06-0976", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8186670541763306, "sibling_score": 0.8186670541763306, "answer_score": null, "sibling_qid": "CHE-2026-03-0255-Q001", "sibling_text": "type of vessel and engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.7894006967544556, "sibling_score": 0.7894006967544556, "answer_score": null, "sibling_qid": "MUM-2026-07-3668-Q004", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7529356479644775, "sibling_score": 0.7529356479644775, "answer_score": null, "sibling_qid": "KOL-2025-12-2031-Q002", "sibling_text": "type of ship and engine sailed engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "MUM-2025-06-0976-Q008", "text": "type of engine", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2025-06-0976", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.8005489110946655, "sibling_score": 0.8005489110946655, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.7930088639259338, "sibling_score": 0.7930088639259338, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-001", "score": 0.4521990418434143, "sibling_score": null, "answer_score": 0.4521990418434143, "sibling_qid": "", "sibling_text": "1 turbocharger type main engine vs generator engine compressor is centrifugal in both cases only the turbine type differs large slow speed main engine axial flow turbine single stage constant pressure system", "sibling_family": "", "via": "answer_title", "answer_title": "1. Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "MUM-2025-06-0976-Q009", "text": "Explain ME-B and components,? X ques on CCU? ECU ? Crank angle encoder ?What happens if Angle encoder ( A& B) both fails ?", "family": "2-Stroke - Reversing & Maneuvering", "subtopic": "EICU / Manoeuvring System", "tid": "MUM-2025-06-0976", "tray": "review", "candidates": [ { "answer_id": "MEB-MEC-P03-001", "score": 0.7570473551750183, "sibling_score": 0.7570473551750183, "answer_score": null, "sibling_qid": "KOL-2023-10-1762-Q009", "sibling_text": "explain me b and components x ques on ccu ecu crank angle encoder what happens if angle encoder a b both fails thanks guys", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "ME-B vs ME-C — the core difference", "cross_family": true }, { "answer_id": "ANG-ENC-005", "score": 0.6258711814880371, "sibling_score": 0.6258711814880371, "answer_score": 0.5477877765893936, "sibling_qid": "MUM-2024-01-1070-Q005", "sibling_text": "angle encoder 5 what if one of angle encoder fails what happens next", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Encoder failure: redundancy, offset, backup and emergency starting", "cross_family": true }, { "answer_id": "EICU-MAN-P01-004", "score": 0.6178916096687317, "sibling_score": 0.6178916096687317, "answer_score": 0.4203618928790092, "sibling_qid": "MUM-2025-01-2790-Q003", "sibling_text": "ecu a and ecu b failed can we run engine", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Control-unit failure — CCU / ECU / EICU: can you still run the engine?", "cross_family": false } ] }, { "qid": "MUM-2025-06-1128-Q002", "text": "2Latest Development in man engine", "family": "General Marine Engineering", "subtopic": "Rules and Regulation", "tid": "MUM-2025-06-1128", "tray": "review", "candidates": [ { "answer_id": "TCS-059-P04-023", "score": 0.7620271444320679, "sibling_score": 0.7620271444320679, "answer_score": 0.3228435456752777, "sibling_qid": "KOL-2025-06-1980-Q002", "sibling_text": "2latest development in man engine", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Recent turbocharging developments / latest engine developments", "cross_family": true }, { "answer_id": "MCC-MEB-P02-001", "score": 0.5755829215049744, "sibling_score": 0.5755829215049744, "answer_score": null, "sibling_qid": "CHE-2026-03-0182-Q008", "sibling_text": "latest develop in me engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Trace the development from MC / SMC engines to MC-C and ME engines", "cross_family": true }, { "answer_id": "SHAFT-CPP-005", "score": 0.4978526532649994, "sibling_score": 0.4978526532649994, "answer_score": null, "sibling_qid": "KOL-2019-02-3214-Q006", "sibling_text": "propeller latest modifications", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "5. Propeller types, design criteria & latest developments", "cross_family": false } ] }, { "qid": "MUM-2025-06-1128-Q007", "text": "7 Difference between fatigue strength and uts", "family": "Workshop & Welding", "subtopic": "Welding / NDT / Heat Treatment", "tid": "MUM-2025-06-1128", "tray": "new", "candidates": [ { "answer_id": "CFF-P02-002", "score": 0.5413626432418823, "sibling_score": 0.5413626432418823, "answer_score": 0.4191727340221405, "sibling_qid": "KOL-2017-01-3030-Q001", "sibling_text": "wat is endurance strength how is it different from ultimate tensile strength", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "The S-N curve and the endurance (fatigue) limit", "cross_family": true }, { "answer_id": "CFF-P02-001", "score": 0.509346604347229, "sibling_score": 0.509346604347229, "answer_score": 0.4525420367717743, "sibling_qid": "MUM-2026-05-3227-Q012", "sibling_text": "and do brittle failure is a fatigue failure", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Fatigue failure — what it is and where it occurs", "cross_family": true }, { "answer_id": "MATPROP-A-004", "score": 0.4867929220199585, "sibling_score": 0.4867929220199585, "answer_score": null, "sibling_qid": "KOL-2022-07-1701-Q006", "sibling_text": "strength versus toughness", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Mechanical properties", "cross_family": true } ] }, { "qid": "MUM-2025-06-1128-Q008", "text": "Thank you all for posting questions", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-06-1128", "tray": "new", "candidates": [ { "answer_id": "ELEC-ELX-010", "score": 0.49031272530555725, "sibling_score": 0.49031272530555725, "answer_score": null, "sibling_qid": "KOL-2018-03-2178-Q005", "sibling_text": "what is spark keep posting questions guys it helps", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Electrical spark and static charge", "cross_family": true }, { "answer_id": "CFF-P02-001", "score": 0.4898410141468048, "sibling_score": 0.4898410141468048, "answer_score": null, "sibling_qid": "KOL-2017-09-1324-Q005", "sibling_text": "fatigue failure lots of cross qst with all qst finally done with cl 2 thank you all for your support and best of luck for who r in que", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Fatigue failure — what it is and where it occurs", "cross_family": true }, { "answer_id": "STAB-SD-C-002", "score": 0.4778861403465271, "sibling_score": 0.4778861403465271, "answer_score": null, "sibling_qid": "MUM-2025-12-0645-Q005", "sibling_text": "static stability and what you will get from it finally passed and coc done with class 2 thank you all for this wonderful channel and your participation i only prepared for previous question from this group nothing else thank you once again", "sibling_family": "", "via": "sibling", "answer_title": "Static stability — what it is and what it quantifies", "cross_family": false } ] }, { "qid": "MUM-2025-06-1131-Q002", "text": "U tube manometer?Where fitted?Value?Value in bar", "family": "General Marine Engineering", "subtopic": "", "tid": "MUM-2025-06-1131", "tray": "new", "candidates": [ { "answer_id": "TPL-SENS-A-002", "score": 0.4906601905822754, "sibling_score": 0.4906601905822754, "answer_score": null, "sibling_qid": "MUM-2022-11-1035-Q004", "sibling_text": "pressure calibration any one", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Pressure transmitter / transducer / switch working and calibration", "cross_family": true }, { "answer_id": "TPL-SENS-005", "score": 0.471910685300827, "sibling_score": 0.471910685300827, "answer_score": 0.37758133113384246, "sibling_qid": "KOC-2026-10-2217-Q006", "sibling_text": "pressure transmitter calibration", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Checking a pressure transmitter on board", "cross_family": true }, { "answer_id": "MIP-264-002", "score": 0.46905046701431274, "sibling_score": 0.46905046701431274, "answer_score": 0.38848826587200164, "sibling_qid": "KOC-2025-08-1049-Q004", "sibling_text": "mean indicated pressure calculation", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Calculate MIP from the indicator / power card (spring constant, unit conversion)", "cross_family": true } ] }, { "qid": "MUM-2025-06-1132-Q002", "text": "Type of engine", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2025-06-1132", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.8005489110946655, "sibling_score": 0.8005489110946655, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.7930088639259338, "sibling_score": 0.7930088639259338, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-001", "score": 0.4521990418434143, "sibling_score": null, "answer_score": 0.4521990418434143, "sibling_qid": "", "sibling_text": "1 turbocharger type main engine vs generator engine compressor is centrifugal in both cases only the turbine type differs large slow speed main engine axial flow turbine single stage constant pressure system", "sibling_family": "", "via": "answer_title", "answer_title": "1. Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "MUM-2025-06-1132-Q006", "text": "Purifier bowl height significance", "family": "Purifier & Centrifuges", "subtopic": "Purifier Operation / Bowl", "tid": "MUM-2025-06-1132", "tray": "review", "candidates": [ { "answer_id": "PURIF-BOWL-P02-003", "score": 0.7967325448989868, "sibling_score": 0.7967325448989868, "answer_score": null, "sibling_qid": "MUM-2026-03-2608-Q004", "sibling_text": "significance of purifier bowl height", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Vertical shaft, bowl height, bearings & load support — checks, adjustment, overhaul, renewal", "cross_family": false }, { "answer_id": "PUR-DSL-002", "score": 0.6672232151031494, "sibling_score": 0.6672232151031494, "answer_score": 0.436618560552597, "sibling_qid": "MUM-2026-06-3474-Q006", "sibling_text": "purifier height", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Purifier overflow after desludging — causes, and checking or adjusting bowl height", "cross_family": false }, { "answer_id": "PUR-OPS-P01-002", "score": 0.41939104497432705, "sibling_score": null, "answer_score": 0.41939104497432705, "sibling_qid": "", "sibling_text": "purifier principle working and how the self cleaning bowl closes principle separation by density difference accelerated enormously by centrifugal force settling at thousands of g disc stack splits the flow into many thin layers short settling distance fast efficient separation", "sibling_family": "", "via": "answer_title", "answer_title": "Purifier — principle, working, and how the self-cleaning bowl closes", "cross_family": false } ] }, { "qid": "MUM-2025-06-1132-Q009", "text": "What is emulsification of LO.", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Lube Oil Emulsification", "tid": "MUM-2025-06-1132", "tray": "new", "candidates": [ { "answer_id": "LO-TEST-P02-003", "score": 0.4889256954193115, "sibling_score": 0.4889256954193115, "answer_score": null, "sibling_qid": "MUM-2026-09-3878-Q006", "sibling_text": "emulsification of lube oil and actions to be taken", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Abnormal LO condition: sump rise, colour, high temperature/pressure, lacquer, deterioration", "cross_family": false }, { "answer_id": "LO-TEST-P02-001", "score": 0.4260653853416443, "sibling_score": 0.4260653853416443, "answer_score": null, "sibling_qid": "KOL-2020-06-1536-Q005", "sibling_text": "dispersion property of lo how it is achieved why needed additive name", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Lube-oil additives; detergency, dispersancy, lubricity and friction modifiers", "cross_family": false }, { "answer_id": "LO-TEST-P01-005", "score": 0.3846396803855896, "sibling_score": 0.3846396803855896, "answer_score": null, "sibling_qid": "KOL-2020-01-1510-Q008", "sibling_text": "explain properties of l o of ae", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Lube-oil properties, types and selection by duty", "cross_family": false } ] }, { "qid": "MUM-2025-06-1132-Q010", "text": "What actions as 2E for emulsification", "family": "", "subtopic": "", "tid": "MUM-2025-06-1132", "tray": "new", "candidates": [ { "answer_id": "LO-TEST-P02-003", "score": 0.5172154307365417, "sibling_score": 0.5172154307365417, "answer_score": null, "sibling_qid": "MUM-2026-09-3878-Q006", "sibling_text": "emulsification of lube oil and actions to be taken", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Abnormal LO condition: sump rise, colour, high temperature/pressure, lacquer, deterioration", "cross_family": false }, { "answer_id": "CASC-COND-001", "score": 0.4672638773918152, "sibling_score": 0.4672638773918152, "answer_score": null, "sibling_qid": "MUM-2026-03-2614-Q004", "sibling_text": "oil sheen on cascade tank what actions as 2e", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Oil found in the cascade tank, hotwell or observation tank — actions, tracing the source, and preventing ingress", "cross_family": false }, { "answer_id": "SBD-001", "score": 0.4569860100746155, "sibling_score": 0.4569860100746155, "answer_score": null, "sibling_qid": "MUM-2026-04-2691-Q002", "sibling_text": "oil in gauge glass action as 2e", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "You find oil in the boiler gauge glass — causes, how you identify the source, and your actions as 2/E (including if manoeuvring). What is carryover?", "cross_family": false } ] }, { "qid": "MUM-2025-06-1132-Q013", "text": "Purifier vertical height check", "family": "Purifier & Centrifuges", "subtopic": "Purifier Operation / Bowl", "tid": "MUM-2025-06-1132", "tray": "review", "candidates": [ { "answer_id": "PURIF-BOWL-P02-003", "score": 0.7026253342628479, "sibling_score": 0.7026253342628479, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q009", "sibling_text": "purifier vertical height measurement reason", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Vertical shaft, bowl height, bearings & load support — checks, adjustment, overhaul, renewal", "cross_family": false }, { "answer_id": "PUR-DSL-002", "score": 0.6957661509513855, "sibling_score": 0.6957661509513855, "answer_score": null, "sibling_qid": "MUM-2026-03-2599-Q005", "sibling_text": "purifier vertical height", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Purifier overflow after desludging — causes, and checking or adjusting bowl height", "cross_family": false }, { "answer_id": "PUR-OPS-P01-002", "score": 0.6844215393066406, "sibling_score": 0.6844215393066406, "answer_score": null, "sibling_qid": "CHE-2026-03-0494-Q001", "sibling_text": "purifier overhaul vertical height what you will check", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Purifier — principle, working, and how the self-cleaning bowl closes", "cross_family": false } ] }, { "qid": "MUM-2025-06-1132-Q017", "text": "Piston alignment.", "family": "2-Stroke - Components (Other)", "subtopic": "Piston (Crown/Skirt/Inspection)", "tid": "MUM-2025-06-1132", "tray": "review", "candidates": [ { "answer_id": "PST-CSI-BF-010", "score": 0.8342029452323914, "sibling_score": 0.8342029452323914, "answer_score": 0.5667383730411529, "sibling_qid": "KOL-2022-05-4009-Q008", "sibling_text": "alignment of piston", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Checking piston alignment / centring in the liner, and correcting eccentricity", "cross_family": false }, { "answer_id": "PIST-CSI-B-002", "score": 0.8201794028282166, "sibling_score": 0.8201794028282166, "answer_score": 0.6078509509563446, "sibling_qid": "KOL-2021-12-3498-Q004", "sibling_text": "checks on piston alignment", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Checking and correcting piston alignment / centering in the liner", "cross_family": false }, { "answer_id": "PRING-B-006", "score": 0.7520163655281067, "sibling_score": 0.7520163655281067, "answer_score": null, "sibling_qid": "MUM-2026-03-2593-Q005", "sibling_text": "piston centering", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "General oral questions", "cross_family": false } ] }, { "qid": "MUM-2025-06-1133-Q002", "text": "What is the status of functions remaining.", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-06-1133", "tray": "new", "candidates": [ { "answer_id": "IMO-CODES-P03-002", "score": 0.5045455098152161, "sibling_score": 0.5045455098152161, "answer_score": null, "sibling_qid": "MUM-2026-03-0815-Q003", "sibling_text": "which function", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": false }, { "answer_id": "A6-NSEC-003", "score": 0.4825218915939331, "sibling_score": 0.4825218915939331, "answer_score": null, "sibling_qid": "CHE-2024-10-0010-Q001", "sibling_text": "nox reduction methods got both functions finally cleared class", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "NOx — formation, limits & reduction (SCR / EGR)", "cross_family": true }, { "answer_id": "CHAIN-TENS-C-001", "score": 0.4553840458393097, "sibling_score": 0.4553840458393097, "answer_score": null, "sibling_qid": "KOL-2021-10-1636-Q005", "sibling_text": "chain slackness check few question forget got function 4", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main-engine chain drive — how you know it is slack, and how you check and tighten it", "cross_family": true } ] }, { "qid": "MUM-2025-06-1133-Q003", "text": "What type of engine you sailed on. MAN ME ENGINE", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2025-06-1133", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.7122277617454529, "sibling_score": 0.7122277617454529, "answer_score": null, "sibling_qid": "MUM-2026-04-1007-Q002", "sibling_text": "type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "MEB-MEC-P03-001", "score": 0.6748627424240112, "sibling_score": 0.6748627424240112, "answer_score": null, "sibling_qid": "KOL-2022-06-1691-Q009", "sibling_text": "type of main engine sailed on diff bw me c b crosshead design in man lubrication", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "ME-B vs ME-C — the core difference", "cross_family": true }, { "answer_id": "MCC-MEB-P01-001", "score": 0.6482214331626892, "sibling_score": 0.6482214331626892, "answer_score": null, "sibling_qid": "MUM-2026-09-3997-Q002", "sibling_text": "type of engine worked me mcc me b and rta", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "MC-C (\"Compact\") engine — design and the main constructional differences from MC", "cross_family": false } ] }, { "qid": "MUM-2025-06-1133-Q006", "text": "What is voice coil drive", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "ELFI", "tid": "MUM-2025-06-1133", "tray": "new", "candidates": [ { "answer_id": "FIVA-220-003", "score": 0.5676316618919373, "sibling_score": 0.5676316618919373, "answer_score": null, "sibling_qid": "CHE-2025-08-0201-Q004", "sibling_text": "fiva valve which type of control it is i told voice coil drive but he asked me p pi or pid", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "FIVA control signal, controller type, voice-coil drive and fail-safe behaviour", "cross_family": false }, { "answer_id": "OC-UV-TRIP-001", "score": 0.5122309327125549, "sibling_score": 0.5122309327125549, "answer_score": null, "sibling_qid": "KOL-2017-01-2094-Q002", "sibling_text": "no volt coil", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Under-voltage trip / no-volt coil — purpose, working, onboard test and calibration", "cross_family": true }, { "answer_id": "VFD-INV-P01-001", "score": 0.500033974647522, "sibling_score": 0.500033974647522, "answer_score": null, "sibling_qid": "KOL-2022-07-2586-Q004", "sibling_text": "vfd drive", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a VFD and what does it do?", "cross_family": true } ] }, { "qid": "MUM-2025-06-1133-Q007", "text": "If both tacho sensors fails does main engine can run.", "family": "2-Stroke - Operations & Casualty", "subtopic": "", "tid": "MUM-2025-06-1133", "tray": "new", "candidates": [ { "answer_id": "TC-CS-P01-007", "score": 0.5719616413116455, "sibling_score": 0.5719616413116455, "answer_score": null, "sibling_qid": "KOC-2025-02-1901-Q004", "sibling_text": "if t c fails how to run engine", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "G·Running the engine with a turbocharger out of service", "cross_family": true }, { "answer_id": "EICU-MAN-P01-004", "score": 0.5667232871055603, "sibling_score": 0.5667232871055603, "answer_score": 0.42871670722961425, "sibling_qid": "MUM-2025-01-2790-Q003", "sibling_text": "ecu a and ecu b failed can we run engine", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Control-unit failure — CCU / ECU / EICU: can you still run the engine?", "cross_family": true }, { "answer_id": "TURBO-CS-P03-018", "score": 0.5566266775131226, "sibling_score": 0.5566266775131226, "answer_score": 0.4337059915065765, "sibling_qid": "KOL-2023-10-3639-Q002", "sibling_text": "all the t c are down how you will run the engine", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Running with the only / all turbocharger(s) out of action", "cross_family": true } ] }, { "qid": "MUM-2025-06-1133-Q008", "text": "How major quantity of fuel is injected in ME engine", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Injection System", "tid": "MUM-2025-06-1133", "tray": "review", "candidates": [ { "answer_id": "FIS-221-002", "score": 0.6515631079673767, "sibling_score": 0.6515631079673767, "answer_score": 0.5243704438209533, "sibling_qid": "MUM-2024-10-0963-Q004", "sibling_text": "explain mec engine fuel injection", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How fuel injection takes place in an ME / ME-C / ME-B engine", "cross_family": false }, { "answer_id": "CR-248-002", "score": 0.6443100571632385, "sibling_score": 0.6443100571632385, "answer_score": 0.5299660742282867, "sibling_qid": "KOL-2021-12-1651-Q004", "sibling_text": "2 how fuel is injected in the cylinder in me full process various operating pressure", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How fuel is injected in electronically controlled ME / RT-flex engines — how rail or hydraulic pressure produces injection", "cross_family": false }, { "answer_id": "CR-248-001", "score": 0.6433698534965515, "sibling_score": 0.6433698534965515, "answer_score": null, "sibling_qid": "MUM-2025-05-0277-Q010", "sibling_text": "how fuel injection takes place in me c engine", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "The common rail fuel injection system — layout, working sequence, rail valves, timing & quantity control", "cross_family": false } ] }, { "qid": "MUM-2025-06-1133-Q009", "text": "Auxiliary engine bottom end bearing why it needs replacement after certain period and what type of stresses act on it", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Decarb Checks / Connecting Rod / Bottom End Bearing", "tid": "MUM-2025-06-1133", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-007", "score": 0.6716918349266052, "sibling_score": 0.6716918349266052, "answer_score": null, "sibling_qid": "KOL-2026-01-3903-Q002", "sibling_text": "aux engine bottom end bearing inspection", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE big-end / bottom-end bearing — inspection, bedding, nip and crush", "cross_family": false }, { "answer_id": "AE-MB-002", "score": 0.6484890580177307, "sibling_score": 0.6484890580177307, "answer_score": null, "sibling_qid": "KOL-2022-02-3517-Q001", "sibling_text": "auxiliary engine main bearing lower shell removal normal bearing and then under slug bearing", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Removing the lower shell / bottom half of an AE main bearing", "cross_family": false }, { "answer_id": "AE-CSB-346-003", "score": 0.6293946504592896, "sibling_score": 0.6293946504592896, "answer_score": null, "sibling_qid": "MUM-2026-09-3988-Q003", "sibling_text": "where is thrust bearing fitted on an auxiliary engine", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Checking / measuring auxiliary-engine thrust-bearing clearance (end float)", "cross_family": false } ] }, { "qid": "MUM-2025-06-1133-Q011", "text": "What is sludge conditioner.", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "", "tid": "MUM-2025-06-1133", "tray": "new", "candidates": [ { "answer_id": "FQCC-583-B-011", "score": 0.5671374201774597, "sibling_score": 0.5671374201774597, "answer_score": null, "sibling_qid": "KOL-2019-12-1503-Q008", "sibling_text": "residual fuel additives compound of sludge removal name", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel oil additives — name four, what they do, and what the regulation allows", "cross_family": false }, { "answer_id": "IOPP-191-004", "score": 0.5593147277832031, "sibling_score": 0.5593147277832031, "answer_score": null, "sibling_qid": "KOC-2025-05-0591-Q007", "sibling_text": "sludge tank regulation", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "IOPP Supplement tank information: where sludge, bilge and oil-residue tanks are recorded", "cross_family": true }, { "answer_id": "OILRES-DISCH-TOPIC467-FINAL-001", "score": 0.5520089864730835, "sibling_score": 0.5520089864730835, "answer_score": null, "sibling_qid": "MUM-2022-07-0030-Q008", "sibling_text": "sludge management", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Managing sludge and oily residues onboard — tanks, storage, hazards and the regulatory basis", "cross_family": true } ] }, { "qid": "MUM-2025-06-1134-Q004", "text": "how to tell a capacity of AC system?", "family": "Refrigeration & AC", "subtopic": "AC Capacity", "tid": "MUM-2025-06-1134", "tray": "review", "candidates": [ { "answer_id": "CAP-CTRL-001", "score": 0.7031404972076416, "sibling_score": 0.7031404972076416, "answer_score": 0.47711769938468934, "sibling_qid": "MUM-2026-03-1286-Q006", "sibling_text": "how capacity of ac decided and works", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "CG-001 · Capacity control in an AC / refrigeration compressor — why and how", "cross_family": false }, { "answer_id": "CCSC-314-002", "score": 0.6504527926445007, "sibling_score": 0.6504527926445007, "answer_score": 0.46584167778491975, "sibling_qid": "KOL-2025-06-1980-Q005", "sibling_text": "5 capacity control in ac", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Compressor capacity control and the capacity controller", "cross_family": false }, { "answer_id": "TON-REF-001", "score": 0.6392218470573425, "sibling_score": 0.6392218470573425, "answer_score": null, "sibling_qid": "MUM-2026-04-2675-Q006S4", "sibling_text": "one ton of refrigeration capacity control in ac", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "What is 1 ton of refrigeration, and what is its equivalent cooling capacity?", "cross_family": false } ] }, { "qid": "MUM-2025-06-1134-Q005", "text": "what is the meaning of one tone cooling capacity. ( Some cross question)", "family": "Refrigeration & AC", "subtopic": "AC Capacity", "tid": "MUM-2025-06-1134", "tray": "review", "candidates": [ { "answer_id": "TON-REF-001", "score": 0.7441590428352356, "sibling_score": 0.7441590428352356, "answer_score": 0.5087191849946976, "sibling_qid": "MUM-2026-04-2675-Q006S4", "sibling_text": "one ton of refrigeration capacity control in ac", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "What is 1 ton of refrigeration, and what is its equivalent cooling capacity?", "cross_family": false }, { "answer_id": "TON-REF-003", "score": 0.6929712295532227, "sibling_score": 0.6929712295532227, "answer_score": 0.5672394394874573, "sibling_qid": "MUM-2026-04-1007-Q016", "sibling_text": "coefficient of refrigeration why not ton of refrigeration", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Why is refrigeration capacity expressed as ton of refrigeration instead of only coefficient of performance?", "cross_family": false }, { "answer_id": "CAP-CTRL-001", "score": 0.6384345889091492, "sibling_score": 0.6384345889091492, "answer_score": 0.48124787509441375, "sibling_qid": "MUM-2026-03-1286-Q006", "sibling_text": "how capacity of ac decided and works", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "CG-001 · Capacity control in an AC / refrigeration compressor — why and how", "cross_family": false } ] }, { "qid": "MUM-2025-06-1135-Q002", "text": "Important thermodynamic properties of refrigerant and lots of cross question.", "family": "Refrigeration & AC", "subtopic": "", "tid": "MUM-2025-06-1135", "tray": "review", "candidates": [ { "answer_id": "REF-CYC-012", "score": 0.820131242275238, "sibling_score": 0.820131242275238, "answer_score": 0.5877452671527862, "sibling_qid": "KOC-2025-08-1570-Q014", "sibling_text": "refrigerant ideal properties more focusing on to thermodynamics properties", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Refrigerant — definition, ideal properties, and why air is not used", "cross_family": false }, { "answer_id": "REF-CYC-004", "score": 0.8201099038124084, "sibling_score": 0.8201099038124084, "answer_score": 0.5906575322151184, "sibling_qid": "KOC-2025-08-1051-Q004", "sibling_text": "ideal refrigerant thermodynamic properties", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "4. Desirable properties, selection and types of refrigerant", "cross_family": false }, { "answer_id": "REF-CYC-006", "score": 0.5798141807317734, "sibling_score": null, "answer_score": 0.5798141807317734, "sibling_qid": "", "sibling_text": "6 saturation temperature subcooling superheat and dryness fraction saturation temperature the temperature at which the refrigerant boils or condenses at a given pressure read the pressure and convert via the p t relationship subcooling liquid cooled below the saturation condensing temperature at condenser pressure benefits more refrigerating effect per kg no flash gas in the liquid line a solid li", "sibling_family": "", "via": "answer_title", "answer_title": "6. Saturation temperature, subcooling, superheat and dryness fraction", "cross_family": false } ] }, { "qid": "MUM-2025-06-1135-Q004", "text": "What is Endurance limit and what is the value.", "family": "", "subtopic": "", "tid": "MUM-2025-06-1135", "tray": "new", "candidates": [ { "answer_id": "CFF-P02-002", "score": 0.5952116847038269, "sibling_score": 0.5952116847038269, "answer_score": 0.39608894735574723, "sibling_qid": "KOL-2023-12-1767-Q005", "sibling_text": "what is endurance limit", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "The S-N curve and the endurance (fatigue) limit", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-002", "score": 0.37456330507993696, "sibling_score": null, "answer_score": 0.37456330507993696, "sibling_qid": "", "sibling_text": "acceptance limits and durations the accumulation limit the maximum test periods and the action if the limit is exceeded the limit is a class figure the lr edition held gives 10 of design pressure mca msis 003 gives 10 of working pressure which it defines as the maximum design pressure the same quantity lr s current edition is 1 july 2026 and is not in hand read the ship s class rule durations are ", "sibling_family": "", "via": "answer_title", "answer_title": "Acceptance limits and durations — the accumulation limit, the maximum test periods, and the action if the limit is exceeded", "cross_family": false }, { "answer_id": "CFF-P02-003", "score": 0.3655317470431328, "sibling_score": null, "answer_score": 0.3655317470431328, "sibling_qid": "", "sibling_text": "low cycle and high cycle fatigue high cycle fatigue hcf low stress elastic n large broadly 10 4 up to 10 6 10 8 stress controlled the s n endurance limit regime basquin low cycle fatigue lcf high stress into plastic strain each cycle n small broadly 10 4 strain controlled coffin manson no endurance limit benefit", "sibling_family": "", "via": "answer_title", "answer_title": "Low-cycle and high-cycle fatigue", "cross_family": false } ] }, { "qid": "MUM-2025-06-1136-Q002", "text": "Engine types you sailed", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2025-06-1136", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.7967451214790344, "sibling_score": 0.7967451214790344, "answer_score": null, "sibling_qid": "CHE-2026-03-0250-Q003", "sibling_text": "type of engines sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P03-001", "score": 0.728217601776123, "sibling_score": 0.728217601776123, "answer_score": null, "sibling_qid": "KOL-2026-03-2048-Q001", "sibling_text": "type of engine done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.7233873009681702, "sibling_score": 0.7233873009681702, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q001", "sibling_text": "type of ship sailed and engines details", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false } ] }, { "qid": "MUM-2025-06-1136-Q010", "text": "Variable displacement motor? ", "family": "", "subtopic": "", "tid": "MUM-2025-06-1136", "tray": "review", "candidates": [ { "answer_id": "WIND-WNCH-003", "score": 0.7388929724693298, "sibling_score": 0.7388929724693298, "answer_score": 0.529646435379982, "sibling_qid": "NOI-2026-09-0025-Q010", "sibling_text": "variable displacement hydraulic motor where used", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Hydraulic drive: motor, pump, circuit and line identification", "cross_family": false }, { "answer_id": "VDP-002", "score": 0.7352938652038574, "sibling_score": 0.7352938652038574, "answer_score": 0.5965511679649352, "sibling_qid": "MUM-2023-06-2734-Q011", "sibling_text": "variable displacement pump and variable displacement motor", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Variable displacement pump and motor — use, purpose and operation", "cross_family": false }, { "answer_id": "HSAP-583-A-008", "score": 0.686914324760437, "sibling_score": 0.686914324760437, "answer_score": null, "sibling_qid": "MUM-2023-06-2734-Q012", "sibling_text": "said swash plate pump at main engin variable displacement motor don t know", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Axial piston / swash plate pump: construction and working", "cross_family": false } ] }, { "qid": "MUM-2025-06-1137-Q003", "text": "Safety valve pressure setting details regulations. Not satisfied with 3% setting.ask me where u study same with other guy.", "family": "", "subtopic": "", "tid": "MUM-2025-06-1137", "tray": "review", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-002", "score": 0.6994215250015259, "sibling_score": 0.6994215250015259, "answer_score": null, "sibling_qid": "KOL-2026-02-3922-Q005", "sibling_text": "what is lifting of safety valve tell only within 3 percent of designated set pressure nothing else", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Acceptance limits and durations — the accumulation limit, the maximum test periods, and the action if the limit is exceeded", "cross_family": false }, { "answer_id": "MAST-PVA-004", "score": 0.6960415840148926, "sibling_score": 0.6960415840148926, "answer_score": 0.5181184113025665, "sibling_qid": "MUM-2022-10-2697-Q007", "sibling_text": "whats the pressure settings of safety valve", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "P/V valve & P/V breaker — pressure/vacuum settings and the basis", "cross_family": false }, { "answer_id": "ECON-EGB-004", "score": 0.6801831126213074, "sibling_score": 0.6801831126213074, "answer_score": 0.5565249264240265, "sibling_qid": "KOL-2026-09-4304-Q003", "sibling_text": "safety valve setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Safety-valve setting after overhaul & why set higher than the boiler", "cross_family": false } ] }, { "qid": "MUM-2025-06-1137-Q004", "text": "Firing order satisfied with force polygon answer.", "family": "", "subtopic": "", "tid": "MUM-2025-06-1137", "tray": "new", "candidates": [ { "answer_id": "FOP-326-A-001", "score": 0.5421789288520813, "sibling_score": 0.5421789288520813, "answer_score": null, "sibling_qid": "KOL-2022-07-1922-Q003", "sibling_text": "firing order deciding principle", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "How is the firing order decided?", "cross_family": false }, { "answer_id": "FOP-326-A-003", "score": 0.524100661277771, "sibling_score": 0.524100661277771, "answer_score": null, "sibling_qid": "KOL-2025-12-4076-Q006", "sibling_text": "firing order importance", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Significance — power balance, stress, vibration", "cross_family": false }, { "answer_id": "FOP-326-A-002", "score": 0.5190858244895935, "sibling_score": 0.5190858244895935, "answer_score": 0.27849075496196746, "sibling_qid": "MUM-2026-07-3686-Q003", "sibling_text": "firing order", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "How is the firing order derived / “calculated” (e.g. 6-cylinder)?", "cross_family": false } ] }, { "qid": "MUM-2025-06-1137-Q005", "text": "Pid details with me governor.", "family": "", "subtopic": "", "tid": "MUM-2025-06-1137", "tray": "new", "candidates": [ { "answer_id": "PID-CTRL-001", "score": 0.5979109406471252, "sibling_score": 0.5979109406471252, "answer_score": null, "sibling_qid": "KOL-2026-09-4304-Q005", "sibling_text": "pid controller in governor", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What a PID controller is and how it works", "cross_family": false }, { "answer_id": "GOV-P02-005", "score": 0.5431058406829834, "sibling_score": 0.5431058406829834, "answer_score": null, "sibling_qid": "KOL-2025-08-2847-Q018", "sibling_text": "pid in electronic governor", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "PID control, loop stability & detuning", "cross_family": false }, { "answer_id": "PID-CTRL-005", "score": 0.539932370185852, "sibling_score": 0.539932370185852, "answer_score": null, "sibling_qid": "MUM-2025-09-0448-Q030", "sibling_text": "pid where used in details", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Open-loop, closed-loop, cascade and other control types onboard", "cross_family": false } ] }, { "qid": "MUM-2025-06-1137-Q006", "text": "Dp transmitor where use how it work? If question have 5 wh questions if they fitted.dont think only ask one question.", "family": "", "subtopic": "", "tid": "MUM-2025-06-1137", "tray": "new", "candidates": [ { "answer_id": "DP-TX-002", "score": 0.5437024831771851, "sibling_score": 0.5437024831771851, "answer_score": null, "sibling_qid": "MUM-2026-01-1913-Q008", "sibling_text": "why condenser is there in dp transmitter", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler drum-level DP transmitter — wet/reference leg, alarms and trip", "cross_family": false }, { "answer_id": "TPL-SENS-A-001", "score": 0.5340390205383301, "sibling_score": 0.5340390205383301, "answer_score": 0.3831190526485443, "sibling_qid": "KOL-2025-08-2825-Q006", "sibling_text": "working of dp transmitter", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Differential pressure cell / DP transmitter working and use", "cross_family": false }, { "answer_id": "STERN-TUBE-TAIL-SHAFT-002", "score": 0.5230444669723511, "sibling_score": 0.5230444669723511, "answer_score": null, "sibling_qid": "KOL-2019-03-3219-Q001", "sibling_text": "propelller drop how and where taking x questions", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "MUM-2025-06-1536-Q003", "text": "Kirchhoff laws", "family": "Electrical - Distribution & MSB", "subtopic": "", "tid": "MUM-2025-06-1536", "tray": "review", "candidates": [ { "answer_id": "EPC-P02-05", "score": 0.6676419973373413, "sibling_score": 0.6676419973373413, "answer_score": 0.5757533639669418, "sibling_qid": "KOC-2024-07-2052-Q009", "sibling_text": "what is kirchoffs law", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "State and explain Kirchhoff's current and voltage laws.", "cross_family": true }, { "answer_id": "FAR-EMI-002", "score": 0.49143052101135254, "sibling_score": 0.49143052101135254, "answer_score": 0.34737437069416044, "sibling_qid": "KOC-2024-09-1405-Q007", "sibling_text": "laws applied in generator", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Fleming's left-hand and right-hand rules — what each tells you, and the laws in a generator", "cross_family": true }, { "answer_id": "FAR-EMI-001", "score": 0.4765968918800354, "sibling_score": 0.4765968918800354, "answer_score": 0.3858899146318436, "sibling_qid": "KOC-2024-09-1397-Q001", "sibling_text": "faraday laws lenz law lorentz law flemings rh and lh rules", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Faraday's laws of electromagnetic induction and Lenz's law — and their shipboard use", "cross_family": true } ] }, { "qid": "MUM-2025-06-1537-Q002", "text": "Insulation type ,what type we use onboard", "family": "Electrical - Distribution & MSB", "subtopic": "", "tid": "MUM-2025-06-1537", "tray": "review", "candidates": [ { "answer_id": "CABLE-INSUL-D-001", "score": 0.6916298270225525, "sibling_score": 0.6916298270225525, "answer_score": null, "sibling_qid": "KOL-2024-05-2712-Q007", "sibling_text": "types of insulation used onboard", "sibling_family": "", "via": "sibling", "answer_title": "Insulation: materials, classes and required properties", "cross_family": false }, { "answer_id": "ENR-P02B-001", "score": 0.6817096471786499, "sibling_score": 0.6817096471786499, "answer_score": null, "sibling_qid": "MUM-2025-11-1781-Q006", "sibling_text": "type of insulation system onboard advantage", "sibling_family": "", "via": "sibling", "answer_title": "Ship’s earthing / distribution system — insulated LV neutral, earthed (Class-approved) HV neutral", "cross_family": false }, { "answer_id": "INS-CLASS-001", "score": 0.6577357053756714, "sibling_score": 0.6577357053756714, "answer_score": null, "sibling_qid": "KOC-2025-07-1549-Q005", "sibling_text": "insulation type", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What is meant by insulation class?", "cross_family": true } ] }, { "qid": "MUM-2025-06-1537-Q008", "text": "Asked how was ur oral ?", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-06-1537", "tray": "new", "candidates": [ { "answer_id": "FHD-616-001", "score": 0.613173246383667, "sibling_score": 0.613173246383667, "answer_score": null, "sibling_qid": "MUM-2022-10-2706-Q010", "sibling_text": "diameter of fire hose gopi sir asked how was your oral then he asked me", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "SOLAS fire-hose requirements — diameter, length, material and quantity; deck vs engine-room length", "cross_family": true }, { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.5307552218437195, "sibling_score": 0.5307552218437195, "answer_score": null, "sibling_qid": "MUM-2026-05-3187-Q001", "sibling_text": "status of other orals and written", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": false }, { "answer_id": "XFMR-THY-E-004", "score": 0.5043178200721741, "sibling_score": 0.5043178200721741, "answer_score": null, "sibling_qid": "MUM-2026-02-1969-Q013", "sibling_text": "what is humming of the transformer cross questions surveyor was good and was listening for answers told me to wait in lobby after 30 mins internal asked how was your oral i said good then internal started his set of questions", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Humming and magnetostriction", "cross_family": true } ] }, { "qid": "MUM-2025-06-1537-Q009", "text": "Which function u did good?", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-06-1537", "tray": "new", "candidates": [ { "answer_id": "IMO-CODES-P03-002", "score": 0.5825998783111572, "sibling_score": 0.5825998783111572, "answer_score": null, "sibling_qid": "MUM-2026-03-0815-Q003", "sibling_text": "which function", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": false }, { "answer_id": "LRHR-B-010", "score": 0.47661271691322327, "sibling_score": 0.47661271691322327, "answer_score": null, "sibling_qid": "KOL-2018-09-0221-Q005", "sibling_text": "hru function n everything", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Explain the HRU's operating principle and full operation. Draw it.", "cross_family": true }, { "answer_id": "BFS-257-010", "score": 0.4584212303161621, "sibling_score": 0.4584212303161621, "answer_score": 0.24584901183843613, "sibling_qid": "MUM-2025-05-0277-Q022", "sibling_text": "how to confirm if it s done properly got function 6", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "How to confirm soot blowing has been carried out effectively", "cross_family": true } ] }, { "qid": "MUM-2025-06-1540-Q002", "text": "ALTERNATOR NOT DEVLOPING VOLTAGE IN DD ?", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator Protection", "tid": "MUM-2025-06-1540", "tray": "review", "candidates": [ { "answer_id": "RES-MAG-002", "score": 0.7590705752372742, "sibling_score": 0.7590705752372742, "answer_score": null, "sibling_qid": "KOL-2023-04-2646-Q005", "sibling_text": "alternator started after many days and voltage not developing", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Generator started but no voltage developing — reasons, and your action as Second Engineer", "cross_family": false }, { "answer_id": "NO-VOLT-001", "score": 0.7536504864692688, "sibling_score": 0.7536504864692688, "answer_score": 0.5002768993377685, "sibling_qid": "KOC-2026-05-0001-Q012", "sibling_text": "alternator not developing voltage reasons", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "The 3/E reports the generator has started but no voltage is showing — reasons, and your actions as 2/E", "cross_family": false }, { "answer_id": "IR-TEST-B-013", "score": 0.5056115090847015, "sibling_score": null, "answer_score": 0.5056115090847015, "sibling_qid": "", "sibling_text": "ir test of an alternator generator isolate prove dead discharge then disconnect the avr rotating diodes and all electronics megger voltage destroys them test the stator winding to frame and the rotor field winding separately voltage by rating 500 1000 v lv 2500 5000 v hv", "sibling_family": "", "via": "answer_title", "answer_title": "IR test of an alternator / generator", "cross_family": false } ] }, { "qid": "MUM-2025-06-1540-Q003", "text": "WHAT IS PHASOR DIAGRAM", "family": "Electrical - Distribution & MSB", "subtopic": "", "tid": "MUM-2025-06-1540", "tray": "new", "candidates": [ { "answer_id": "PF-D-001", "score": 0.6062060594558716, "sibling_score": 0.6062060594558716, "answer_score": 0.438755464553833, "sibling_qid": "KOC-2025-07-1552-Q005", "sibling_text": "draw power triangle with cos phi mep", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "How kW, kVA, kVAR, current and the power triangle relate to power factor", "cross_family": true }, { "answer_id": "SYNC-B-003", "score": 0.5903007984161377, "sibling_score": 0.5903007984161377, "answer_score": null, "sibling_qid": "MUM-2026-09-3873-Q007", "sibling_text": "explain phase sequence and phase angle with the sinusoidal wave diagram", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Phase sequence — what it is and how it is matched", "cross_family": true }, { "answer_id": "SYNC-B-006", "score": 0.5852482318878174, "sibling_score": 0.5852482318878174, "answer_score": 0.4603012204170227, "sibling_qid": "KOL-2019-10-2339-Q003", "sibling_text": "show paralleling using phasor diagram", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Synchronising — parameters, procedure and the phasor / voltage picture", "cross_family": true } ] }, { "qid": "MUM-2025-06-1540-Q006", "text": "HOW YOU CAN INCREASE DRECREASE VOLTAGE ALT.", "family": "Electrical - Generator & Alternator", "subtopic": "Voltage Dip / Droop", "tid": "MUM-2025-06-1540", "tray": "review", "candidates": [ { "answer_id": "AVR-EXC-H-002", "score": 0.6533933281898499, "sibling_score": 0.6533933281898499, "answer_score": 0.49995487928390503, "sibling_qid": "KOC-2024-06-1364-Q007", "sibling_text": "how to adjust voltage of generator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Voltage trimmer — adjustment and biasing", "cross_family": false }, { "answer_id": "AVR-EXC-H-001", "score": 0.6138090491294861, "sibling_score": 0.6138090491294861, "answer_score": null, "sibling_qid": "KOC-2023-04-1252-Q004", "sibling_text": "avr components how voltages is adjusted", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "AVR — location, components and fault checks", "cross_family": false }, { "answer_id": "SYNC-D-003", "score": 0.6048794388771057, "sibling_score": 0.6048794388771057, "answer_score": null, "sibling_qid": "CHE-2025-07-0265-Q012", "sibling_text": "while llel 2 gen incoming generator voltage is low i said voltage trimmer is provided in the msb or generator can adjust or 5v he need percentage i don t surveyor said 2 5 of rated voltage", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Correct paralleling — checks, the synchroscope & phase angle, voltage trim, interlocks", "cross_family": false } ] }, { "qid": "MUM-2025-06-1540-Q007S2", "text": "DEFINE HIGH VOLTAGE AND ASSOCIATED SAFETIES WITH IT.", "family": "", "subtopic": "High Voltage System", "tid": "MUM-2025-06-1540", "tray": "review", "candidates": [ { "answer_id": "HV-SYS-P05-001", "score": 0.7151987552642822, "sibling_score": 0.7151987552642822, "answer_score": null, "sibling_qid": "MUM-2022-08-1346-Q002", "sibling_text": "define high voltage what additional safeties if high voltage", "sibling_family": "", "via": "sibling", "answer_title": "HV switchboard (MSB): safeties, interlocks and protective features", "cross_family": false }, { "answer_id": "HV-SYS-P04-001", "score": 0.6936902403831482, "sibling_score": 0.6936902403831482, "answer_score": 0.4782422363758087, "sibling_qid": "KOL-2025-06-1981-Q002", "sibling_text": "all safeties in high voltage", "sibling_family": "", "via": "sibling", "answer_title": "HV-SYS-P04-001 - HV hazards, advantages and safeties", "cross_family": false }, { "answer_id": "T038-P01-002", "score": 0.6493011713027954, "sibling_score": 0.6493011713027954, "answer_score": null, "sibling_qid": "KOL-2022-05-2569-Q006", "sibling_text": "high voltage safties", "sibling_family": "", "via": "sibling", "answer_title": "HV system onboard — layout, components, applications, earthing & protection", "cross_family": false } ] }, { "qid": "MUM-2025-06-1545-Q001", "text": "Types of fuses", "family": "Electrical - Protection & Relays", "subtopic": "Protection / Relays", "tid": "MUM-2025-06-1545", "tray": "review", "candidates": [ { "answer_id": "FUSE-HRC-002", "score": 0.789086103439331, "sibling_score": 0.789086103439331, "answer_score": 0.5749638170003891, "sibling_qid": "KOL-2021-11-2516-Q008", "sibling_text": "fuse types", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Types of fuses used on board", "cross_family": false }, { "answer_id": "FUSE-HRC-003", "score": 0.7402836084365845, "sibling_score": 0.7402836084365845, "answer_score": 0.5725487172603607, "sibling_qid": "KOC-2024-11-1441-Q007", "sibling_text": "types of fuses explain cartridge type fuse", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Specific fuse types: cartridge, rewireable, thermal, low-current", "cross_family": false }, { "answer_id": "FUSE-HRC-004", "score": 0.4975436806678772, "sibling_score": null, "answer_score": 0.4975436806678772, "sibling_qid": "", "sibling_text": "hrc fuse construction operation materials identification hrc high rupturing breaking capacity a cartridge fuse for high fault current duty current limiting body heat resisting ceramic steatite porcelain sealed with metal end caps or knife blade contacts", "sibling_family": "", "via": "answer_title", "answer_title": "HRC fuse – construction, operation, materials, identification", "cross_family": false } ] }, { "qid": "MUM-2025-06-2309-Q007", "text": "At last ext said answer like 2nd engineer then internal said", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-06-2309", "tray": "new", "candidates": [ { "answer_id": "EECS-007", "score": 0.5490989089012146, "sibling_score": 0.5490989089012146, "answer_score": null, "sibling_qid": "KOL-2018-08-0204-Q004", "sibling_text": "eeoi n ssemp what u do as 2nd engineer", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "07. EEDI, EEOI and SEEMP — and how each applies on board", "cross_family": true }, { "answer_id": "ISM-SMCDOC-A-001", "score": 0.5488588809967041, "sibling_score": 0.5488588809967041, "answer_score": null, "sibling_qid": "MUM-2023-03-2725-Q004", "sibling_text": "intrim sms survey as 2nd eng internal donot want to hear about all checks only specific to 2nd engg he was very specific if i say about all checklist he said donot waste time be specific", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM certificates: the DOC and SMC family", "cross_family": true }, { "answer_id": "ISM-2E-A-001", "score": 0.5376503467559814, "sibling_score": 0.5376503467559814, "answer_score": null, "sibling_qid": "CHE-2025-08-0040-Q006", "sibling_text": "ism role as 2nd engg", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Roles, duties and responsibilities of a Second Engineer under ISM/SMS", "cross_family": true } ] }, { "qid": "MUM-2025-06-2312-Q002", "text": "Checks on con rod bottom end bolts and why is resilience important.", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-06-2312", "tray": "new", "candidates": [ { "answer_id": "CRB-002", "score": 0.6217871308326721, "sibling_score": 0.6217871308326721, "answer_score": 0.5018360316753387, "sibling_qid": "CHE-2025-11-0221-Q004", "sibling_text": "checks on conrod bolts", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What checks and tests are carried out on connecting rod bolts? Why NDT, why check elongation, what is the maximum limit, and which section tends to shear off?", "cross_family": true }, { "answer_id": "AE-CRP-005", "score": 0.5947152376174927, "sibling_score": 0.5947152376174927, "answer_score": 0.49063291549682614, "sibling_qid": "CHE-2026-04-0170-Q001S4", "sibling_text": "ae con rod bolt stresses checks", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": true }, { "answer_id": "AECR-651-003", "score": 0.5667160153388977, "sibling_score": 0.5667160153388977, "answer_score": 0.47564459443092344, "sibling_qid": "MUM-2025-06-2313-Q005", "sibling_text": "ae conrod check and criteria to change bottom end bolts and tightening procedure", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "What are the criteria to change the bottom-end bolts on an AE connecting rod, and what is the tightening procedure?", "cross_family": true } ] }, { "qid": "MUM-2025-06-2312-Q003", "text": "Explain ME interlocks", "family": "Electrical - Protection & Relays", "subtopic": "", "tid": "MUM-2025-06-2312", "tray": "new", "candidates": [ { "answer_id": "ILK-318-001", "score": 0.6096553802490234, "sibling_score": 0.6096553802490234, "answer_score": 0.39816168546676634, "sibling_qid": "KOC-2026-09-2209-Q005", "sibling_text": "me interlocks", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "1. What are the main engine interlocks?", "cross_family": true }, { "answer_id": "EICU-MAN-P02-004", "score": 0.608993649482727, "sibling_score": 0.608993649482727, "answer_score": 0.3775476902723312, "sibling_qid": "KOL-2026-01-2034-Q005", "sibling_text": "me interlocks", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Main-engine manoeuvring interlocks and the running-direction interlock", "cross_family": true }, { "answer_id": "IGAT-583-001", "score": 0.5476858615875244, "sibling_score": 0.5476858615875244, "answer_score": null, "sibling_qid": "KOL-2025-03-3753-Q002", "sibling_text": "what are the interlocks in igg", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "State all the alarms, trips and safety cut-outs provided on a tanker inert gas (IG) system.", "cross_family": true } ] }, { "qid": "MUM-2025-06-2312-Q004", "text": "How to check that AE is performing effectively during night round.", "family": "2-Stroke - Operations & Casualty", "subtopic": "ER Round", "tid": "MUM-2025-06-2312", "tray": "new", "candidates": [ { "answer_id": "FCL-P03-001", "score": 0.46011626720428467, "sibling_score": 0.46011626720428467, "answer_score": 0.3035062566399574, "sibling_qid": "KOL-2020-11-3361-Q003", "sibling_text": "ae timing check", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "AE / auxiliary-engine fuel pump timing check and adjustment", "cross_family": true }, { "answer_id": "CO2-SYS-002", "score": 0.4495637118816376, "sibling_score": 0.4495637118816376, "answer_score": null, "sibling_qid": "KOC-2024-11-0466-Q008", "sibling_text": "checks in the co2 room during routine rounds", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 maintenance, inspection, testing and survey routines", "cross_family": true }, { "answer_id": "AECR-651-001", "score": 0.44843003153800964, "sibling_score": 0.44843003153800964, "answer_score": null, "sibling_qid": "MUM-2022-12-1037-Q023", "sibling_text": "checks on con rod of ae", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What checks do you carry out on the connecting rod of an AE / DG — inspection, overhaul checks and the trueness check?", "cross_family": true } ] }, { "qid": "MUM-2025-06-2313-Q003", "text": "Main engine Tie rod tightening procedure ?", "family": "2-Stroke - Structure & Tie Rods", "subtopic": "Tie Rod Function / Tightening / Removal", "tid": "MUM-2025-06-2313", "tray": "review", "candidates": [ { "answer_id": "MAIN-BRG-D-006", "score": 0.7898592948913574, "sibling_score": 0.7898592948913574, "answer_score": null, "sibling_qid": "KOL-2025-06-3785-Q003", "sibling_text": "main engine tie rod tightening procedure", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Tie rods — function and tightening", "cross_family": true }, { "answer_id": "TBR-TT-P02-001", "score": 0.7592790126800537, "sibling_score": 0.7592790126800537, "answer_score": 0.5879014134407043, "sibling_qid": "CHE-2026-04-0502-Q002", "sibling_text": "tie rod tightening procedure me engine", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Tie rod tightening / hydraulic tensioning procedure", "cross_family": true }, { "answer_id": "PRE-TEN-005", "score": 0.5538924276828766, "sibling_score": null, "answer_score": 0.5538924276828766, "sibling_qid": "", "sibling_text": "tie rod tightening procedure tie rods clamp bedplate columns entablature into one rigid pre compressed structure they keep the structure pre compressed so the transverse girders are spared fluctuating tensile stress and they hold alignment", "sibling_family": "", "via": "answer_title", "answer_title": "Tie-rod tightening procedure", "cross_family": false } ] }, { "qid": "MUM-2025-06-2313-Q006", "text": "Checks on AE piston and clearances to be taken..with clearance values..I just answered clearance will be mentioned on the manual.", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "", "tid": "MUM-2025-06-2313", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-003", "score": 0.8986365795135498, "sibling_score": 0.8986365795135498, "answer_score": null, "sibling_qid": "KOL-2025-06-3785-Q006", "sibling_text": "checks on ae piston and clearances to be taken with clearance values i just answered clearance will be mentioned on the manual", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE piston, ring and groove checks; piston material", "cross_family": false }, { "answer_id": "PRING-CLR-A-002", "score": 0.746260941028595, "sibling_score": 0.746260941028595, "answer_score": null, "sibling_qid": "MUM-2026-05-3325-Q001", "sibling_text": "how take butt clearance of piston ring in ae", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Piston-ring clearances and calibration — butt, axial, radial, wear limits", "cross_family": false }, { "answer_id": "PIST-CSI-B-003", "score": 0.7426548004150391, "sibling_score": 0.7426548004150391, "answer_score": null, "sibling_qid": "KOC-2025-09-1943-Q003", "sibling_text": "what are all the clearance will be taken in piston", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Inspecting, calibrating and gauging a removed piston", "cross_family": true } ] }, { "qid": "MUM-2025-06-2314-Q001", "text": "TYPE OF SHIP SAILED", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-06-2314", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8455203175544739, "sibling_score": 0.8455203175544739, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8445307612419128, "sibling_score": 0.8445307612419128, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7924375534057617, "sibling_score": 0.7924375534057617, "answer_score": null, "sibling_qid": "CHE-2026-03-0253-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "MUM-2025-06-2314-Q002", "text": "ON DECK YOU WANT TO weld cast iron how to prepare? how will you prepare and what electrode you will use?", "family": "Workshop & Welding", "subtopic": "Cast Iron Welding", "tid": "MUM-2025-06-2314", "tray": "review", "candidates": [ { "answer_id": "WELD-B-001", "score": 0.7420323491096497, "sibling_score": 0.7420323491096497, "answer_score": 0.47736007571220396, "sibling_qid": "MUM-2026-06-3641-Q001", "sibling_text": "cast iron welding which electrode", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding & crack-repair of aluminium and cast iron, including metal stitching", "cross_family": false }, { "answer_id": "WELD-B-006", "score": 0.6706266403198242, "sibling_score": 0.6706266403198242, "answer_score": 0.4848177075386047, "sibling_qid": "KOC-2025-06-1916-Q010", "sibling_text": "what welding electrodes will you use and step by step preparation for welding", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding electrodes — selection, storage and handling", "cross_family": false }, { "answer_id": "LH-ELEC-003", "score": 0.5114080727100372, "sibling_score": null, "answer_score": 0.5114080727100372, "sibling_qid": "", "sibling_text": "3 how do you select or order the correct welding electrode or rod match to base material and strength first mild steel high tensile stainless cast iron this fixes the electrode family then coating type for the duty rutile e g e6013 general basic low hydrogen e7018 crack sensitive or high tensile", "sibling_family": "", "via": "answer_title", "answer_title": "3. How do you select or order the correct welding electrode or rod?", "cross_family": false } ] }, { "qid": "MUM-2025-06-2314-Q005", "text": "Load carrying capacity of your AUx eng is Lower What ovrhaul you will plan as 2e?", "family": "Fault Diagnosis & 2/E Actions", "subtopic": "Fault Diagnosis / 2E Action", "tid": "MUM-2025-06-2314", "tray": "review", "candidates": [ { "answer_id": "AEDEC-291-009", "score": 0.8298790454864502, "sibling_score": 0.8298790454864502, "answer_score": 0.4747683107852936, "sibling_qid": "KOL-2025-06-3786-Q005", "sibling_text": "load carrying capacity of your aux eng is lower what ovrhaul you will plan as 2e", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "9. Planning overhaul when load-carrying capacity is low", "cross_family": true }, { "answer_id": "LLC-SURV-P01-001", "score": 0.5615482926368713, "sibling_score": 0.5615482926368713, "answer_score": null, "sibling_qid": "MUM-2025-08-0398-Q001", "sibling_text": "loadline preparation as 2e", "sibling_family": "", "via": "sibling", "answer_title": "Load line survey preparation as Second Engineer: engine-room scope, machinery openings, tanks/vents, valves and overboard checks", "cross_family": false }, { "answer_id": "DCB-OVH-002", "score": 0.552715003490448, "sibling_score": 0.552715003490448, "answer_score": null, "sibling_qid": "KOC-2025-09-1943-Q005", "sibling_text": "the preparation will be done by 2nd engg before major overhauling", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Preparing for a complete unit overhaul or unit survey", "cross_family": true } ] }, { "qid": "MUM-2025-06-2317-Q003", "text": "Main bearing bottom half renewal procedure", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "", "tid": "MUM-2025-06-2317", "tray": "review", "candidates": [ { "answer_id": "MAIN-BRG-B-001", "score": 0.7141111493110657, "sibling_score": 0.7141111493110657, "answer_score": null, "sibling_qid": "KOC-2026-05-0012-Q006", "sibling_text": "removal of bottom part of main bearing full process", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you open up / remove / overhaul a main-engine main bearing?", "cross_family": false }, { "answer_id": "MN-BRG-C-001", "score": 0.7122798562049866, "sibling_score": 0.7122798562049866, "answer_score": null, "sibling_qid": "MUM-2025-07-2339-Q002", "sibling_text": "bottom half main bearing removal procedure", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Opening, removing and overhauling a main bearing", "cross_family": false }, { "answer_id": "BEB-A-001", "score": 0.6857184767723083, "sibling_score": 0.6857184767723083, "answer_score": 0.5177805840969085, "sibling_qid": "KOL-2025-12-4076-Q003", "sibling_text": "bottom end bearing renewal hours reason for con rod renewal", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Removing, overhauling, inspecting and refitting the bottom end bearing", "cross_family": false } ] }, { "qid": "MUM-2025-06-2317-Q004", "text": "How to remove", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "", "tid": "MUM-2025-06-2317", "tray": "new", "candidates": [ { "answer_id": "MN-BRG-C-001", "score": 0.619584858417511, "sibling_score": 0.619584858417511, "answer_score": null, "sibling_qid": "KOL-2026-01-3900-Q001", "sibling_text": "main beraing removal", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Opening, removing and overhauling a main bearing", "cross_family": false }, { "answer_id": "MAIN-BRG-B-001", "score": 0.6194441914558411, "sibling_score": 0.6194441914558411, "answer_score": null, "sibling_qid": "KOC-2025-12-1982-Q001", "sibling_text": "main beraing removal", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you open up / remove / overhaul a main-engine main bearing?", "cross_family": false }, { "answer_id": "AIR-REF-004", "score": 0.5585594773292542, "sibling_score": 0.5585594773292542, "answer_score": null, "sibling_qid": "MUM-2025-06-2309-Q005", "sibling_text": "to remove and indications", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "4. Detecting and purging air from a refrigeration system", "cross_family": true } ] }, { "qid": "MUM-2025-06-2321-Q004", "text": "Brake test on winches?", "family": "Steering Gear & Hydraulics", "subtopic": "Frame System / Pump Type", "tid": "MUM-2025-06-2321", "tray": "review", "candidates": [ { "answer_id": "WBRT-001", "score": 0.7203022241592407, "sibling_score": 0.7203022241592407, "answer_score": 0.5366116642951965, "sibling_qid": "KOL-2026-03-3927-Q003", "sibling_text": "brake rendering test of winch", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Carrying out a mooring-winch brake rendering test", "cross_family": true }, { "answer_id": "WBRT-004", "score": 0.6812505722045898, "sibling_score": 0.6812505722045898, "answer_score": null, "sibling_qid": "MUM-2025-02-2269-Q002", "sibling_text": "windlass checks brake rendering test", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Survey, frequency and the regulation behind brake testing", "cross_family": true }, { "answer_id": "WIND-WNCH-005", "score": 0.6793893575668335, "sibling_score": 0.6793893575668335, "answer_score": 0.570010757446289, "sibling_qid": "KOL-2022-10-0689-Q020", "sibling_text": "brake test of windlass", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Brake tests, rendering and load / efficiency testing", "cross_family": true } ] }, { "qid": "MUM-2025-06-2321-Q005", "text": "Why and how?", "family": "Steering Gear & Hydraulics", "subtopic": "Frame System / Pump Type", "tid": "MUM-2025-06-2321", "tray": "new", "candidates": [ { "answer_id": "ALT-GEN-P03-001", "score": 0.5375304222106934, "sibling_score": 0.5375304222106934, "answer_score": null, "sibling_qid": "MUM-2025-07-1556-Q007", "sibling_text": "action and why", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Alternator/generator working principle and onboard electricity generation", "cross_family": true }, { "answer_id": "VIT-MECH-A-002", "score": 0.5326316356658936, "sibling_score": 0.5326316356658936, "answer_score": null, "sibling_qid": "CHE-2026-05-0556-Q006", "sibling_text": "vit why and how", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How VIT works — varying the start of injection on the fuel pump", "cross_family": true }, { "answer_id": "MSB-ESB-D-001", "score": 0.5226444005966187, "sibling_score": 0.5226444005966187, "answer_score": null, "sibling_qid": "KOL-2020-10-2400-Q006", "sibling_text": "how work why given", "sibling_family": "", "via": "sibling", "answer_title": "Main & emergency switchboards: function, construction & ship power distribution", "cross_family": false } ] }, { "qid": "MUM-2025-06-2321-Q006", "text": "How will you adjust the lift of safety valve in boilers? 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Where are low-hydrogen electrodes used onboard?", "cross_family": false } ] }, { "qid": "MUM-2025-06-2324-Q006", "text": "What is Galvanisation how to be done", "family": "Workshop & Welding", "subtopic": "", "tid": "MUM-2025-06-2324", "tray": "review", "candidates": [ { "answer_id": "COAT-543-001", "score": 0.6525660753250122, "sibling_score": 0.6525660753250122, "answer_score": 0.5172570735216141, "sibling_qid": "MUM-2026-02-1254-Q015", "sibling_text": "galvanisation", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Galvanizing — process and where it is used on board", "cross_family": false }, { "answer_id": "PIPE-MAT-002", "score": 0.5516747832298279, "sibling_score": 0.5516747832298279, "answer_score": null, "sibling_qid": "CHE-2023-11-0393-Q014", "sibling_text": "why do we galvanise pipe", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Material and coating for sea-water / engine-room pipes", "cross_family": false }, { "answer_id": "PIPEFAB-011", "score": 0.4824143648147583, "sibling_score": 0.4824143648147583, "answer_score": 0.37956880182027813, "sibling_qid": "CHE-2026-05-0570-Q001", "sibling_text": "how will u proceed for galvanized pipe welding", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Explain the repair procedure for a GI or GRP pipe, including welding a GI pipe", "cross_family": false } ] }, { "qid": "MUM-2025-06-2326-Q001", "text": "Plummer block lubn", "family": "2-Stroke - 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Lubrication & Bearings", "via": "sibling", "answer_title": "Thrust bearing clearance — measurement procedure & value", "cross_family": false } ] }, { "qid": "MUM-2025-06-2326-Q002", "text": "Spark erosion", "family": "General Marine Engineering", "subtopic": "", "tid": "MUM-2025-06-2326", "tray": "new", "candidates": [ { "answer_id": "SMK-FUNL-BF01-004", "score": 0.49174728989601135, "sibling_score": 0.49174728989601135, "answer_score": 0.28701010048389436, "sibling_qid": "CHE-2026-09-3929-Q001", "sibling_text": "action spark in funnel ege fire", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "There are sparks from the funnel on arrival in port — what is the reason and your action?", "cross_family": true }, { "answer_id": "ELEC-ELX-010", "score": 0.4626339077949524, "sibling_score": 0.4626339077949524, "answer_score": 0.28899141550064084, "sibling_qid": "KOL-2018-03-2178-Q005", "sibling_text": "what is spark keep posting questions guys it helps", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Electrical spark and static charge", "cross_family": true }, { "answer_id": "ACJCW-009", "score": 0.42380544543266296, "sibling_score": 0.42380544543266296, "answer_score": null, "sibling_qid": "KOL-2024-04-3683-Q006", "sibling_text": "function of erosion plug", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Purpose of an erosion plug in a cooler", "cross_family": true } ] }, { "qid": "MUM-2025-06-2326-Q004", "text": "Cargo Crane need to lower after black out what u will do?", "family": "Electrical - Generator & Alternator", "subtopic": "Black Out Test / Recovery", "tid": "MUM-2025-06-2326", "tray": "review", "candidates": [ { "answer_id": "ERC-345-002", "score": 0.664964497089386, "sibling_score": 0.664964497089386, "answer_score": null, "sibling_qid": "KOL-2017-10-3098-Q006", "sibling_text": "you have load on engine room crane something went wrong nd crane stopped working how will you bring down the load", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Brake action and emergency load lowering", "cross_family": true }, { "answer_id": "CRANE-ER-005", "score": 0.6434898376464844, "sibling_score": 0.6434898376464844, "answer_score": null, "sibling_qid": "KOC-2025-09-1943-Q009", "sibling_text": "crane hook is not lowering how will you continue the overhauling", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Limit switches, cut-outs & response to crane faults or failure", "cross_family": true }, { "answer_id": "CRANE-EMBRK-004", "score": 0.62801593542099, "sibling_score": 0.62801593542099, "answer_score": 0.5542348146438598, "sibling_qid": "KOC-2023-03-0152-Q015", "sibling_text": "braking in crane what happens when power failure occurs", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Power-failure behaviour of the brake, and its place in the crane safety chain", "cross_family": true } ] }, { "qid": "MUM-2025-06-2808-Q004", "text": "Nitriding process, why done", "family": "General Marine Engineering", "subtopic": "", "tid": "MUM-2025-06-2808", "tray": "review", "candidates": [ { "answer_id": "HEAT-TRT-C-001", "score": 0.6711812019348145, "sibling_score": 0.6711812019348145, "answer_score": 0.5204618722200394, "sibling_qid": "MUM-2026-04-2666-Q003", "sibling_text": "nitriding why nitriding", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Nitriding — process, gas and where it is used on board", "cross_family": true }, { "answer_id": "HEAT-TRT-C-002", "score": 0.42683727741241456, "sibling_score": null, "answer_score": 0.42683727741241456, "sibling_qid": "", "sibling_text": "induction hardening and flame hardening principle and use both heat the surface above the upper critical austenitising temperature then quench the opposite of nitriding induction high frequency ac in a coil induces eddy currents the steel s own resistance heats the surface in seconds", "sibling_family": "", "via": "answer_title", "answer_title": "Induction hardening and flame hardening — principle and use", "cross_family": false }, { "answer_id": "JCW-SYS-004", "score": 0.37363458424806595, "sibling_score": null, "answer_score": 0.37363458424806595, "sibling_qid": "", "sibling_text": "why jacket water is treated chemicals used what rocor nb stands for the nitrite level maintained and removing scale purpose corrosion protection ferrous and non ferrous scale prevention ph control cavitation erosion protection rocor nb n nitrite the corrosion inhibitor forms a passive oxide film b borate ph buffer alkalinity", "sibling_family": "", "via": "answer_title", "answer_title": "Why jacket water is treated - chemicals used, what Rocor NB stands for, the nitrite level maintained, and removing scale", "cross_family": false } ] }, { "qid": "MUM-2025-06-2809-Q001", "text": "M/E specification,What is Mark No,What it tells.", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2025-06-2809", "tray": "new", "candidates": [ { "answer_id": "ENG-NOM-003", "score": 0.6001080274581909, "sibling_score": 0.6001080274581909, "answer_score": null, "sibling_qid": "KOC-2026-03-1116-Q004", "sibling_text": "what does the mark number signifies", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Stroke letters S/L/K/G, stroke-bore ratio, mark and series number", "cross_family": true }, { "answer_id": "MEB-MEC-P03-001", "score": 0.5202595591545105, "sibling_score": 0.5202595591545105, "answer_score": null, "sibling_qid": "CHE-2025-09-0178-Q007", "sibling_text": "mark 9 significance in me c", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "ME-B vs ME-C — the core difference", "cross_family": true }, { "answer_id": "LL-CONV-P04-002", "score": 0.46358177065849304, "sibling_score": 0.46358177065849304, "answer_score": null, "sibling_qid": "KOC-2025-01-0497-Q010", "sibling_text": "ll marking purpose", "sibling_family": "", "via": "sibling", "answer_title": "Load Line Convention, certificates, assigning authority and detention risk", "cross_family": false } ] }, { "qid": "MUM-2025-06-2809-Q001S2", "text": "What is L.O Bio degradation.In stern tube sea water enters sometimes which is common So why no bio degradation takes place here.", "family": "2-Stroke - 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Stern tube seals — lip, radial-face and simplex arrangement (oil and air)", "cross_family": true } ] }, { "qid": "MUM-2025-06-2809-Q001S3", "text": "Everyday 300litre stern tube are loosing action", "family": "Fault Diagnosis & 2/E Actions", "subtopic": "Fault Diagnosis / 2E Action", "tid": "MUM-2025-06-2809", "tray": "new", "candidates": [ { "answer_id": "STERN-TUBE-P04-001", "score": 0.6442168951034546, "sibling_score": 0.6442168951034546, "answer_score": 0.4411560237407684, "sibling_qid": "MUM-2025-05-2301-Q003", "sibling_text": "in stern tube everyday 30 itrs oil loosing", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Stern tube or seal leakage at sea: diagnosis and 2/E actions", "cross_family": true }, { "answer_id": "STT-BRG-006", "score": 0.5552234649658203, "sibling_score": 0.5552234649658203, "answer_score": null, "sibling_qid": "KOL-2016-10-3009-Q003", "sibling_text": "stern tube system if leaking measures", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "5. 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Watertight & Closing Appliances", "via": "sibling", "answer_title": "What is weathertight, and how does it differ from watertight — meaning, application, location and testing?", "cross_family": false } ] }, { "qid": "MUM-2025-07-0341-Q006", "text": "Dif. B/W ISM and ISO", "family": "ISM Code", "subtopic": "TQM / Quality Management", "tid": "MUM-2025-07-0341", "tray": "review", "candidates": [ { "answer_id": "WIDAS-SMK-007", "score": 0.6643044352531433, "sibling_score": 0.6643044352531433, "answer_score": null, "sibling_qid": "MUM-2026-03-0855-Q003", "sibling_text": "diff between iso ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Smoke sampling line — testing, confirming clear, and what is in the tube", "cross_family": false }, { "answer_id": "ISMNC-003", "score": 0.44138920307159424, "sibling_score": 0.44138920307159424, "answer_score": 0.29505345821380613, "sibling_qid": "MUM-2026-05-3236-Q004", "sibling_text": "difference between conformity and major non conformity as per ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Differentiate between a major non-conformity and a non-conformity under the ISM Code.", "cross_family": false }, { "answer_id": "ISM-AUD-P02-002", "score": 0.43562352657318115, "sibling_score": 0.43562352657318115, "answer_score": null, "sibling_qid": "MUM-2025-10-0519-Q004", "sibling_text": "what is ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM Code — what it is, purpose, objectives and structure", "cross_family": false } ] }, { "qid": "MUM-2025-07-0342-Q001", "text": "Type of ship, rank experience", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-07-0342", "tray": "new", "candidates": [ { "answer_id": "BM-SF-CF-003", "score": 0.6143642067909241, "sibling_score": 0.6143642067909241, "answer_score": null, "sibling_qid": "MUM-2026-02-0790-Q004", "sibling_text": "ship experience forces", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Forces on a ship that produce shear force and bending moment", "cross_family": true }, { "answer_id": "LLST-AB-001", "score": 0.6076338887214661, "sibling_score": 0.6076338887214661, "answer_score": 0.3962387353181839, "sibling_qid": "CHE-2026-05-0614-Q001", "sibling_text": "start from type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.5983648896217346, "sibling_score": 0.5983648896217346, "answer_score": null, "sibling_qid": "MUM-2026-05-3222-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false } ] }, { "qid": "MUM-2025-07-0342-Q005", "text": "CBA ( explained about ship owners and seafarer union negotiations and terms. - but he said some other party is also involved ?, that I don't know 4 angle of lol and correction 5 fore peak tank construction 6 breast hook 7 fire fighting system in engine room all", "family": "", "subtopic": "", "tid": "MUM-2025-07-0342", "tray": "new", "candidates": [ { "answer_id": "FIXED-FF-B-002", "score": 0.578012228012085, "sibling_score": 0.578012228012085, "answer_score": null, "sibling_qid": "KOL-2019-05-0287-Q002", "sibling_text": "b firefighting in paint locker located fwd of the ship working principle of smoke detector and how the cable is passed from fwd to aft", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Local fixed arrangements for boiler fronts, galley fryers, paint lockers, ECRs and small special spaces", "cross_family": false }, { "answer_id": "FFF-A-002", "score": 0.5753225088119507, "sibling_score": 0.5753225088119507, "answer_score": null, "sibling_qid": "MUM-2024-04-0174-Q004", "sibling_text": "fixed fire fighting arrangement in engine room said everything but still not satisfied", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fixed firefighting in the engine room and machinery spaces", "cross_family": false }, { "answer_id": "FOAM-SYS-P06-002", "score": 0.5738823413848877, "sibling_score": 0.5738823413848877, "answer_score": null, "sibling_qid": "KOL-2024-10-0869-Q001", "sibling_text": "fixed fire fighting system on your ship x1 additional fire fighting for e r x2 annual checks for h e foam system x3 line diagram and explain working of foam system no decider for fn 5", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "2. Maintenance routines — fixed foam system & concentrate", "cross_family": false } ] }, { "qid": "MUM-2025-07-0343-Q002", "text": "Type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-07-0343", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.836262583732605, "sibling_score": 0.836262583732605, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8015266060829163, "sibling_score": 0.8015266060829163, "answer_score": 0.5469690978527069, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8002626895904541, "sibling_score": 0.8002626895904541, "answer_score": 0.5215309828519821, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2025-07-0343-Q004", "text": "Types of door", "family": "SOLAS - Watertight & Closing Appliances", "subtopic": "Watertight / Weathertight Doors", "tid": "MUM-2025-07-0343", "tray": "review", "candidates": [ { "answer_id": "WTD-001", "score": 0.6721945405006409, "sibling_score": 0.6721945405006409, "answer_score": 0.3872206538915634, "sibling_qid": "MUM-2026-02-0782-Q006", "sibling_text": "types of watertight doors", "sibling_family": "SOLAS - Watertight & Closing Appliances", "via": "sibling", "answer_title": "What watertight doors are, the types fitted, and the SOLAS/Class requirements", "cross_family": false }, { "answer_id": "FIRE-P03-05", "score": 0.6207584142684937, "sibling_score": 0.6207584142684937, "answer_score": null, "sibling_qid": "MUM-2026-01-0696-Q001", "sibling_text": "different tyoes of fire doors", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fire dampers, smoke dampers and engine-room ventilation flaps — definitions, closures and testing", "cross_family": true }, { "answer_id": "WEATH-545-001", "score": 0.6016814112663269, "sibling_score": 0.6016814112663269, "answer_score": null, "sibling_qid": "KOL-2021-12-0581-Q003", "sibling_text": "water tight door vs weather tight door", "sibling_family": "SOLAS - Watertight & Closing Appliances", "via": "sibling", "answer_title": "What is weathertight, and how does it differ from watertight — meaning, application, location and testing?", "cross_family": false } ] }, { "qid": "MUM-2025-07-0343-Q007", "text": "Dif. B/W ISM and ISO 4b", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "MUM-2025-07-0343", "tray": "new", "candidates": [ { "answer_id": "WIDAS-SMK-007", "score": 0.5990713238716125, "sibling_score": 0.5990713238716125, "answer_score": null, "sibling_qid": "MUM-2026-03-0855-Q003", "sibling_text": "diff between iso ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Smoke sampling line — testing, confirming clear, and what is in the tube", "cross_family": false }, { "answer_id": "ISMNC-003", "score": 0.4391467571258545, "sibling_score": 0.4391467571258545, "answer_score": 0.29698142409324646, "sibling_qid": "KOL-2021-07-0525-Q003", "sibling_text": "major non conformity and non conformity as per ism 4", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Differentiate between a major non-conformity and a non-conformity under the ISM Code.", "cross_family": false }, { "answer_id": "ISM-ELEM-002", "score": 0.43690967559814453, "sibling_score": 0.43690967559814453, "answer_score": null, "sibling_qid": "KOC-2026-05-2138-Q008", "sibling_text": "ism codes describe all the codes in part a and part b", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the ISM Code?", "cross_family": false } ] }, { "qid": "MUM-2025-07-0346-Q001", "text": "Exam situation for written and oral", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-07-0346", "tray": "review", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.6645417809486389, "sibling_score": 0.6645417809486389, "answer_score": null, "sibling_qid": "MUM-2026-01-1252-Q001", "sibling_text": "status of results oral written exam", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": false }, { "answer_id": "NDT-METH-P01-001", "score": 0.5191566348075867, "sibling_score": 0.5191566348075867, "answer_score": null, "sibling_qid": "MUM-2026-03-2946-Q006", "sibling_text": "the best thing you can do is figure out which exams you can appear for whether single subjects pairs or all together it depends on your will and capability for me i appeared in pairs 2 writtens and 1 oral because i knew my capability it differs for everyone many attempt all 6 together as per my knowledge few pass all 6 some pass 4 5 some pass 1 3 and some failed all", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "NDT methods, NDT vs destructive testing, and onboard use", "cross_family": false }, { "answer_id": "DUS-P1-02", "score": 0.49928224086761475, "sibling_score": 0.49928224086761475, "answer_score": null, "sibling_qid": "KOL-2025-08-3851-Q006", "sibling_text": "drydock plans rudder checks cross questions what about other written oral exams status told waiting for naval written result to come all other paper cleared", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Plans, drawings and special tools kept ready for drydock — engine-department view", "cross_family": true } ] }, { "qid": "MUM-2025-07-0346-Q002", "text": "Types of ship sailed", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-07-0346", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.829597532749176, "sibling_score": 0.829597532749176, "answer_score": null, "sibling_qid": "CHE-2026-09-3938-Q001", "sibling_text": "types of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7974901795387268, "sibling_score": 0.7974901795387268, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7831109762191772, "sibling_score": 0.7831109762191772, "answer_score": null, "sibling_qid": "CHE-2026-03-0253-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "MUM-2025-07-0346-Q003", "text": "2e check for cargo loading unloading", "family": "Fault Diagnosis & 2/E Actions", "subtopic": "Fault Diagnosis / 2E Action", "tid": "MUM-2025-07-0346", "tray": "new", "candidates": [ { "answer_id": "COT-P03-05", "score": 0.6015929579734802, "sibling_score": 0.6015929579734802, "answer_score": null, "sibling_qid": "MUM-2026-02-0754-Q001", "sibling_text": "ship arriving port what will u check as 2e", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Alarms, trips and interlocks of the IG and cargo-pumping systems tested before discharge — and how, safely", "cross_family": true }, { "answer_id": "CPS-316-002", "score": 0.5713441371917725, "sibling_score": 0.5713441371917725, "answer_score": 0.5366735756397247, "sibling_qid": "MUM-2022-09-0049-Q002", "sibling_text": "as a 2nd engg what r all checks carriedout before cargo discharge", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "2/E checks and preparation before cargo discharge / cargo operations", "cross_family": true }, { "answer_id": "CPS-316-003", "score": 0.5697891712188721, "sibling_score": 0.5697891712188721, "answer_score": 0.45211098790168763, "sibling_qid": "MUM-2022-10-2697-Q003", "sibling_text": "how will u know during loading cargo is going to tanks", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Confirming cargo to the intended tanks during loading; why two manifold connections", "cross_family": true } ] }, { "qid": "MUM-2025-07-0346-Q004", "text": "All alarms trips", "family": "Fault Diagnosis & 2/E Actions", "subtopic": "Fault Diagnosis / 2E Action", "tid": "MUM-2025-07-0346", "tray": "review", "candidates": [ { "answer_id": "IGAT-583-001", "score": 0.6544353365898132, "sibling_score": 0.6544353365898132, "answer_score": null, "sibling_qid": "KOL-2022-10-0693-Q002", "sibling_text": "ig alarms trips", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "State all the alarms, trips and safety cut-outs provided on a tanker inert gas (IG) system.", "cross_family": true }, { "answer_id": "MSB-ESB-E-001", "score": 0.5854392051696777, "sibling_score": 0.5854392051696777, "answer_score": null, "sibling_qid": "KOC-2023-01-1229-Q006", "sibling_text": "msb alarms not trips", "sibling_family": "", "via": "sibling", "answer_title": "What safeties, protection trips, relays and alarms are provided on the MSB / ESB, and how are they tested?", "cross_family": false }, { "answer_id": "BLR-ALM-001", "score": 0.3971468865871429, "sibling_score": null, "answer_score": 0.3971468865871429, "sibling_qid": "", "sibling_text": "boiler alarms and trips list the alarms and trips on an auxiliary boiler panel a trip cuts the fuel and stops firing an alarm only warns know which is which solas ii 1 32 2 implemented for indian ships by the dgs cargo ship construction survey rules 1991 unattended oil fired boiler fuel shut off alarm at an attended position on low water level combustion air supply failure flame failure", "sibling_family": "", "via": "answer_title", "answer_title": "Boiler alarms and trips — list the alarms and trips on an auxiliary boiler panel", "cross_family": false } ] }, { "qid": "MUM-2025-07-0346-Q005", "text": "Imo structure", "family": "Other Conventions", "subtopic": "UNCLOS", "tid": "MUM-2025-07-0346", "tray": "review", "candidates": [ { "answer_id": "IMO-CC-P01-001", "score": 0.7829366326332092, "sibling_score": 0.7829366326332092, "answer_score": 0.3916673272848129, "sibling_qid": "MUM-2026-03-0826-Q006", "sibling_text": "imo structure", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Explain the structure and organs of IMO — Assembly, Council, Committees and Secretariat.", "cross_family": false }, { "answer_id": "IMO-5PIL-001", "score": 0.7322354912757874, "sibling_score": 0.7322354912757874, "answer_score": 0.3910326600074768, "sibling_qid": "MUM-2025-11-0571-Q001", "sibling_text": "imo structure", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Structure of IMO — the main organs", "cross_family": true }, { "answer_id": "IMO-CODES-P03-002", "score": 0.43152602314949035, "sibling_score": null, "answer_score": 0.43152602314949035, "sibling_qid": "", "sibling_text": "imo overview structure committees certificates imsas ui and carbon strategy", "sibling_family": "", "via": "answer_title", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": false } ] }, { "qid": "MUM-2025-07-0346-Q008", "text": "Financial security in mlc", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2025-07-0346", "tray": "new", "candidates": [ { "answer_id": "CLC-CIV-A-004", "score": 0.5479273200035095, "sibling_score": 0.5479273200035095, "answer_score": 0.27609113305807115, "sibling_qid": "MUM-2026-07-3757-Q004", "sibling_text": "certificate of financial security as per mlc", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "CLC certificate, blue card and certificate of financial security", "cross_family": true }, { "answer_id": "MLC-WRH-B-006", "score": 0.4836132824420929, "sibling_score": 0.4836132824420929, "answer_score": null, "sibling_qid": "MUM-2026-06-3656-Q002", "sibling_text": "certificates under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false }, { "answer_id": "MLC-WRH-B-009", "score": 0.4445171058177948, "sibling_score": 0.4445171058177948, "answer_score": null, "sibling_qid": "CHE-2025-08-0426-Q009", "sibling_text": "ship owner abandoned the ship what will you do as per mlc i told financial security certificate for repartation", "sibling_family": "MLC", "via": "sibling", "answer_title": "Abandonment — financial security and repatriation", "cross_family": false } ] }, { "qid": "MUM-2025-07-0346-Q009", "text": "Detainable deficiency in mlc", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2025-07-0346", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-007", "score": 0.7417271733283997, "sibling_score": 0.7417271733283997, "answer_score": 0.3495904117822647, "sibling_qid": "MUM-2026-01-0701-Q002", "sibling_text": "detainable deficiency of mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false }, { "answer_id": "DCG-002", "score": 0.5627810955047607, "sibling_score": 0.5627810955047607, "answer_score": 0.32738835513591763, "sibling_qid": "KOL-2025-04-0931-Q013", "sibling_text": "example for detainable deficiency", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What are the reasons for PSC detention and what is a detainable deficiency? Which engine-room deficiencies can detain your ship, which conventions can ground a detainable deficiency, and what is banning by PSC?", "cross_family": true }, { "answer_id": "AII-DISCH-007", "score": 0.33913970589637754, "sibling_score": null, "answer_score": 0.33913970589637754, "sibling_qid": "", "sibling_text": "what deficiency may be raised when the annex ii discharge criteria are not satisfied a non compliant discharge is an illegal nls discharge not a minor defect psc deficiency discharge outside reg 13 inadequate stripping cargo record book gaps or false entries potentially detainable", "sibling_family": "", "via": "answer_title", "answer_title": "What deficiency may be raised when the Annex II discharge criteria are not satisfied", "cross_family": false } ] }, { "qid": "MUM-2025-07-0346-Q010", "text": "Free board cross questions", "family": "Ship Construction & Stability", "subtopic": "DEFINITION", "tid": "MUM-2025-07-0346", "tray": "new", "candidates": [ { "answer_id": "LL-CONV-P04-002", "score": 0.6330826878547668, "sibling_score": 0.6330826878547668, "answer_score": null, "sibling_qid": "CHE-2026-09-3921-Q007", "sibling_text": "free board why given", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Load Line Convention, certificates, assigning authority and detention risk", "cross_family": false }, { "answer_id": "A6-NSEC-005", "score": 0.5926865339279175, "sibling_score": 0.5926865339279175, "answer_score": null, "sibling_qid": "MUM-2024-11-0222-Q002", "sibling_text": "seemp all parts cross questions", "sibling_family": "MARPOL - 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Tanker cargo-type classification, examples, and sweet vs sour crude", "cross_family": false }, { "answer_id": "CERT-LIST-P02-003", "score": 0.6658049821853638, "sibling_score": 0.6658049821853638, "answer_score": null, "sibling_qid": "MUM-2026-06-3495-Q001", "sibling_text": "where you come to know which cargo can be carried", "sibling_family": "Maritime Law & Certificates", "via": "sibling", "answer_title": "Certificates that decide ship type and permitted cargo", "cross_family": true }, { "answer_id": "COT-P03-10", "score": 0.656697690486908, "sibling_score": 0.656697690486908, "answer_score": null, "sibling_qid": "MUM-2025-08-2372-Q006", "sibling_text": "cargo system", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Tanker cargo-pumping arrangement — tank suction to shore manifold, with stripping and isolation", "cross_family": true } ] }, { "qid": "MUM-2025-07-0348-Q006", "text": "How to clean tanks after palm oil loading?", "family": "", "subtopic": "", "tid": "MUM-2025-07-0348", "tray": "new", "candidates": [ { "answer_id": "TCM-374-006", "score": 0.6202327013015747, "sibling_score": 0.6202327013015747, "answer_score": null, "sibling_qid": "MUM-2026-06-3616-Q010", "sibling_text": "tank cleaning procedure of your ship", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Cargo stripping and tank residues (bellmouth and discharge limits)", "cross_family": false }, { "answer_id": "CPFE-583-012", "score": 0.5940197706222534, "sibling_score": 0.5940197706222534, "answer_score": null, "sibling_qid": "KOL-2026-05-0051-Q006", "sibling_text": "tank cleaning procedure of your ship xxx question risk assesment complete where to pump out how to pump out what is the regulation to pump overboard procedure of striping what type of tank can pumped out", "sibling_family": "", "via": "sibling", "answer_title": "Seal arrangement, cofferdam, and how leakage is detected", "cross_family": false }, { "answer_id": "ESE-P01-005", "score": 0.5932105779647827, "sibling_score": 0.5932105779647827, "answer_score": null, "sibling_qid": "MUM-2022-07-2136-Q001", "sibling_text": "tank entry after cargo discharge operation warming up purging gas freeing", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "Cargo tank, pump-room, ballast tank or duct-keel entry preparation", "cross_family": false } ] }, { "qid": "MUM-2025-07-0349-Q003", "text": "safematic steering", "family": "Drydock & Underwater Surveys", "subtopic": "Rudder / Pintle Clearance", "tid": "MUM-2025-07-0349", "tray": "review", "candidates": [ { "answer_id": "SGS-BF1-001", "score": 0.7275012135505676, "sibling_score": 0.7275012135505676, "answer_score": 0.45565812289714813, "sibling_qid": "KOC-2024-07-1000-Q014", "sibling_text": "safematic steering only explanation", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Safematic steering gear system — how it is asked in the oral, and what SOLAS actually requires", "cross_family": true }, { "answer_id": "STG-055-C-001", "score": 0.7253543138504028, "sibling_score": 0.7253543138504028, "answer_score": 0.47839199900627133, "sibling_qid": "MUM-2026-08-3849-Q005", "sibling_text": "steering safematic", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Safematic steering gear, redundancy and the single-failure criterion", "cross_family": true }, { "answer_id": "SGS-BF1-003", "score": 0.6891392469406128, "sibling_score": 0.6891392469406128, "answer_score": null, "sibling_qid": "KOC-2024-10-1013-Q007", "sibling_text": "safematic steering gear and regulations", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "SOLAS regulations for automatic isolation and steering redundancy — the \"29.15 vs 29.16\" distinction", "cross_family": true } ] }, { "qid": "MUM-2025-07-0349-Q004", "text": "vessel going to USA 15 ppm not working cross ques", "family": "Auxiliary Equipment", "subtopic": "General Auxiliary Machinery", "tid": "MUM-2025-07-0349", "tray": "new", "candidates": [ { "answer_id": "OWS-ORB-002", "score": 0.547350287437439, "sibling_score": 0.547350287437439, "answer_score": 0.4357188194990158, "sibling_qid": "MUM-2023-11-0148-Q003", "sibling_text": "15 ppm not working how will you report control actions as 2e", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "2. OWS / 15 ppm alarm not working — reporting and control actions as 2/E", "cross_family": true }, { "answer_id": "OWS-15PPM-003", "score": 0.5080493688583374, "sibling_score": 0.5080493688583374, "answer_score": null, "sibling_qid": "CHE-2025-08-0055-Q004", "sibling_text": "how the 15 ppm equipment measuring ppm", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": true }, { "answer_id": "OWS-15PPM-002", "score": 0.4937228858470917, "sibling_score": 0.4937228858470917, "answer_score": 0.4498460054397583, "sibling_qid": "CHE-2025-10-0065-Q007", "sibling_text": "e r bilges discharge criteria what is the meaning by 15ppm without dilution", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": true } ] }, { "qid": "MUM-2025-07-0349-Q005", "text": "bunker regulations 2020", "family": "MARPOL - General & Compliance", "subtopic": "Bunker Tank Survey", "tid": "MUM-2025-07-0349", "tray": "new", "candidates": [ { "answer_id": "SOX-LIMIT-001", "score": 0.5934600830078125, "sibling_score": 0.5934600830078125, "answer_score": null, "sibling_qid": "KOL-2019-10-0346-Q003", "sibling_text": "bunker cap 2020", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "MARPOL Annex VI sulphur limits — the 2020 global cap", "cross_family": true }, { "answer_id": "BDN-001-004", "score": 0.5791022181510925, "sibling_score": 0.5791022181510925, "answer_score": null, "sibling_qid": "KOC-2025-07-1044-Q001", "sibling_text": "f o bunker specification", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Fuel spec on the BDN — sulphur, ISO 8217, % m/m, ppm", "cross_family": false }, { "answer_id": "BUNK-PLAN-001", "score": 0.5664133429527283, "sibling_score": 0.5664133429527283, "answer_score": null, "sibling_qid": "KOL-2020-10-0431-Q005", "sibling_text": "checks as 2 e during bunkering", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Second Engineer's duties, preparation and checks for bunkering", "cross_family": false } ] }, { "qid": "MUM-2025-07-0349-Q006", "text": "bunker sulphur 0.53 what to do and cross", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "SULPHUR", "tid": "MUM-2025-07-0349", "tray": "new", "candidates": [ { "answer_id": "SOX-LIMIT-004", "score": 0.6492117047309875, "sibling_score": 0.6492117047309875, "answer_score": null, "sibling_qid": "MUM-2026-02-0771-Q004", "sibling_text": "then bunker fuel 0 53 sulfur what you do", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Compliant fuel unavailable or off-spec — FONAR", "cross_family": true }, { "answer_id": "BUNK-PLAN-004", "score": 0.5169409513473511, "sibling_score": 0.5169409513473511, "answer_score": null, "sibling_qid": "CHE-2024-06-0397-Q001", "sibling_text": "ce not there bunker barge arrived what you will do start with sopep scrubber plug quantity check bdn flash pont density sulphur content viscosity emergency signal grade of fuel", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Bunker plan: tank selection, quantity / overflow control, calculation and procedure", "cross_family": true }, { "answer_id": "SOX-LIMIT-001", "score": 0.48007285594940186, "sibling_score": 0.48007285594940186, "answer_score": null, "sibling_qid": "KOL-2019-08-0309-Q006", "sibling_text": "a s per latest regulation of using 0 5 sulphur from 2020 what are the requirements for it he wanted to listen points like cleaning of bunker tank trying to consuming all bunker before taking new checking machinery compatibility with the oil etc", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "MARPOL Annex VI sulphur limits — the 2020 global cap", "cross_family": true } ] }, { "qid": "MUM-2025-07-0350-Q001", "text": "Difference between condition of class and memorandum", "family": "Ship Construction & Stability", "subtopic": "DEFINITION", "tid": "MUM-2025-07-0350", "tray": "new", "candidates": [ { "answer_id": "COC-002", "score": 0.5885371565818787, "sibling_score": 0.5885371565818787, "answer_score": 0.4147141546010971, "sibling_qid": "KOL-2021-05-0505-Q002", "sibling_text": "difference between class and condition of assignment", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the difference between a Condition of Class and a Condition of Assignment?", "cross_family": true }, { "answer_id": "COC-001", "score": 0.578438401222229, "sibling_score": 0.578438401222229, "answer_score": 0.3381915047764778, "sibling_qid": "KOC-2026-05-0044-Q005", "sibling_text": "condition of class", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is a Condition of Class? Give examples, say where it is found, how much time is given to rectify it, and what happens if it is not met in time.", "cross_family": true }, { "answer_id": "LL-CONV-P04-001", "score": 0.5433709621429443, "sibling_score": 0.5433709621429443, "answer_score": null, "sibling_qid": "KOL-2024-12-0903-Q002", "sibling_text": "conditions of assignment and conditions of class", "sibling_family": "", "via": "sibling", "answer_title": "Conditions of assignment of freeboard: purpose, checks and effect on freeboard", "cross_family": false } ] }, { "qid": "MUM-2025-07-0353-Q001", "text": "type of ship (Oil/Chem)", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-07-0353", "tray": "review", "candidates": [ { "answer_id": "CPFE-583-002", "score": 0.7353282570838928, "sibling_score": 0.7353282570838928, "answer_score": null, "sibling_qid": "MUM-2026-06-3604-Q002", "sibling_text": "type of ship chemical product", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Why a submerged hydraulic pump on a product or chemical tanker — and what makes a cargo pump different", "cross_family": false }, { "answer_id": "IBC-BCH-B-004", "score": 0.7305658459663391, "sibling_score": 0.7305658459663391, "answer_score": null, "sibling_qid": "MUM-2026-05-3156-Q001", "sibling_text": "type of ships chemical tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Certificate of Fitness and MARPOL Annex II in practice", "cross_family": false }, { "answer_id": "FQCC-583-A-003", "score": 0.698051929473877, "sibling_score": 0.698051929473877, "answer_score": null, "sibling_qid": "KOC-2026-03-1110-Q008", "sibling_text": "grade of fuel oil used in ur ship", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel grades and marine fuel naming", "cross_family": true } ] }, { "qid": "MUM-2025-07-0353-Q002", "text": "Certificate under marpol Annex 1 n 2 for ur ship.", "family": "MARPOL - Annex I (Oil)", "subtopic": "OWS / 15ppm / ODMCS", "tid": "MUM-2025-07-0353", "tray": "review", "candidates": [ { "answer_id": "AVICERT-006", "score": 0.7344589829444885, "sibling_score": 0.7344589829444885, "answer_score": 0.5539452195167541, "sibling_qid": "KOL-2025-12-1141-Q005", "sibling_text": "certificates related marpol orb part 1 2", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What certificates are carried on board under all the MARPOL annexes, Annex I to Annex VI?", "cross_family": true }, { "answer_id": "MARPOL-OV-001", "score": 0.7196052074432373, "sibling_score": 0.7196052074432373, "answer_score": null, "sibling_qid": "KOC-2024-01-0278-Q017", "sibling_text": "marpol annex required for your ship and certificates", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Which MARPOL annexes apply to your ship?", "cross_family": true }, { "answer_id": "CHEM-PA-004", "score": 0.7192370891571045, "sibling_score": 0.7192370891571045, "answer_score": null, "sibling_qid": "KOL-2021-01-0458-Q004", "sibling_text": "marpol annex 2 and 3 certificates", "sibling_family": "MARPOL - Annex II (NLS)", "via": "sibling", "answer_title": "Certificates, documents and records under Annex II", "cross_family": true } ] }, { "qid": "MUM-2025-07-0353-Q009", "text": "Lifeboat davit load testing?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Lifeboat Static / Dynamic Test", "tid": "MUM-2025-07-0353", "tray": "review", "candidates": [ { "answer_id": "LBT-TEST-B-001", "score": 0.761589765548706, "sibling_score": 0.761589765548706, "answer_score": 0.5488451331853866, "sibling_qid": "KOC-2026-05-2131-Q006", "sibling_text": "tests in lifeboat davits explain dynamic test how much is the proof load how it is loaded", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat/davit load-test proof loads and test conditions", "cross_family": false }, { "answer_id": "LB-SDT-A-001", "score": 0.7171624898910522, "sibling_score": 0.7171624898910522, "answer_score": 0.5297079920768738, "sibling_qid": "KOC-2024-10-0425-Q008", "sibling_text": "lifeboat davit tests", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat static and dynamic test — purpose and procedure", "cross_family": false }, { "answer_id": "DRG-B-013", "score": 0.7150249481201172, "sibling_score": 0.7150249481201172, "answer_score": null, "sibling_qid": "MUM-2025-11-0560-Q004", "sibling_text": "life boat davit tests", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "The test and examination regime — and what PSC looks at", "cross_family": false } ] }, { "qid": "MUM-2025-07-0355-Q001", "text": "only 22 july mumbai Internal: Satish devdas kamanth sir, external:v.kamath patience gentleman. What is your ship type", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-07-0355", "tray": "new", "candidates": [ { "answer_id": "COT-01", "score": 0.5830337405204773, "sibling_score": 0.5830337405204773, "answer_score": null, "sibling_qid": "MUM-2026-02-0757-Q001", "sibling_text": "sanjib ship type oil tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Oil-tanker types, definitions and cargo capability", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.5682899355888367, "sibling_score": 0.5682899355888367, "answer_score": null, "sibling_qid": "MUM-2026-02-1280-Q001", "sibling_text": "type of ship done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LPG-LNG-009", "score": 0.5619163513183594, "sibling_score": 0.5619163513183594, "answer_score": null, "sibling_qid": "CHE-2026-04-0164-Q001", "sibling_text": "type of ship sailed lpg carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Gas-carrier fundamentals and ship-specific traps", "cross_family": false } ] }, { "qid": "MUM-2025-07-0355-Q004", "text": "what are the annexes your ship follows .", "family": "MARPOL - General & Compliance", "subtopic": "Vessel Compliance with MARPOL Annexes", "tid": "MUM-2025-07-0355", "tray": "review", "candidates": [ { "answer_id": "MARPOL-OV-001", "score": 0.704294741153717, "sibling_score": 0.704294741153717, "answer_score": 0.4567533254623413, "sibling_qid": "MUM-2022-07-0017-Q006", "sibling_text": "what all annexes apply to your ship", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Which MARPOL annexes apply to your ship?", "cross_family": false }, { "answer_id": "STP-SEW-001", "score": 0.5643728971481323, "sibling_score": 0.5643728971481323, "answer_score": null, "sibling_qid": "KOC-2026-09-2208-Q003", "sibling_text": "annex 4 applicable ships", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "MARPOL Annex IV — scope, applicability and certification", "cross_family": true }, { "answer_id": "MARPOL-OV-002", "score": 0.531552791595459, "sibling_score": 0.531552791595459, "answer_score": null, "sibling_qid": "KOC-2025-03-0552-Q016", "sibling_text": "marpol all annexes titles only", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "The six annexes and what each covers", "cross_family": false } ] }, { "qid": "MUM-2025-07-0355-Q007", "text": "what are solas chapters - i told him 14 - he told I was not updated . He told 15 are there.", "family": "SOLAS - General (HOLD)", "subtopic": "", "tid": "MUM-2025-07-0355", "tray": "review", "candidates": [ { "answer_id": "SOLAS-CH-014", "score": 0.6989961862564087, "sibling_score": 0.6989961862564087, "answer_score": 0.4455239146947861, "sibling_qid": "KOC-2022-10-0102-Q009", "sibling_text": "solas how many chapters what is the 14th chapter", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS Chapter XIV - Polar Code", "cross_family": true }, { "answer_id": "SOLAS-OVW-003", "score": 0.6602694392204285, "sibling_score": 0.6602694392204285, "answer_score": null, "sibling_qid": "KOC-2021-12-0040-Q004", "sibling_text": "how many chapters in solas and what is the 14th chapter", "sibling_family": "", "via": "sibling", "answer_title": "SOLAS Chapter XIV — ships operating in polar waters (Polar Code)", "cross_family": false }, { "answer_id": "SOLAS-CH-012", "score": 0.6558539867401123, "sibling_score": 0.6558539867401123, "answer_score": null, "sibling_qid": "MUM-2020-08-0001-Q009", "sibling_text": "solas how many capters explain chapter 13 14", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS XI-1, XI-2 and XIII - safety, security and audit", "cross_family": true } ] }, { "qid": "MUM-2025-07-0355-Q010", "text": "he asked what is torsion box and location and which ship it's there . And how the ship gets torsional stress.", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-07-0355", "tray": "review", "candidates": [ { "answer_id": "DBTB-A-004", "score": 0.6821035146713257, "sibling_score": 0.6821035146713257, "answer_score": 0.5596531212329864, "sibling_qid": "MUM-2026-05-3215-Q001", "sibling_text": "torsion box in container location connection to collision bulkhead", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Torsion box: construction and arrangement in a container ship", "cross_family": true }, { "answer_id": "DB-TORBOX-B-001", "score": 0.6544224619865417, "sibling_score": 0.6544224619865417, "answer_score": 0.5644966959953308, "sibling_qid": "KOL-2019-08-0318-Q002", "sibling_text": "torsion box what and why only in container ship", "sibling_family": "", "via": "sibling", "answer_title": "Torsion box — purpose, location, and why container ships", "cross_family": false }, { "answer_id": "DB-TORBOX-B-003", "score": 0.6329531073570251, "sibling_score": 0.6329531073570251, "answer_score": 0.5905585348606109, "sibling_qid": "MUM-2025-11-0580-Q002", "sibling_text": "torsional box", "sibling_family": "", "via": "sibling", "answer_title": "What is a torsion box — definition and construction", "cross_family": false } ] }, { "qid": "MUM-2025-07-0357-Q004S3", "text": "Safety checks you carry out before making an entry ?", "family": "", "subtopic": "", "tid": "MUM-2025-07-0357", "tray": "new", "candidates": [ { "answer_id": "ESE-P02-008", "score": 0.5988450050354004, "sibling_score": 0.5988450050354004, "answer_score": 0.36961825042963026, "sibling_qid": "KOL-2025-09-1067-Q005", "sibling_text": "checks prior to entry into enclosed space", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "ESE-P02-08. Before, during and after: confirming a space is safe to enter", "cross_family": false }, { "answer_id": "ESE-P01-003", "score": 0.5561405420303345, "sibling_score": 0.5561405420303345, "answer_score": null, "sibling_qid": "CHE-2026-04-0163-Q012", "sibling_text": "enclose space entry checks", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "General enclosed-space entry procedure as second engineer", "cross_family": false }, { "answer_id": "ESE-P02-001", "score": 0.5376521944999695, "sibling_score": 0.5376521944999695, "answer_score": null, "sibling_qid": "CHE-2026-05-0547-Q002", "sibling_text": "thresholds limit if value is within limit then can we enter", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "ESE-P02-01. Threshold limits, TLV and toxic-gas interpretation for entry", "cross_family": false } ] }, { "qid": "MUM-2025-07-0358-Q001", "text": "Type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-07-0358", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8362626433372498, "sibling_score": 0.8362626433372498, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8015266060829163, "sibling_score": 0.8015266060829163, "answer_score": 0.5469691485166549, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8002626895904541, "sibling_score": 0.8002626895904541, "answer_score": 0.5215309828519821, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2025-07-0358-Q005", "text": "What is enclosed space", "family": "Risk & Safety Management", "subtopic": "Enclosed Space Entry", "tid": "MUM-2025-07-0358", "tray": "review", "candidates": [ { "answer_id": "ESE-P01-003", "score": 0.7632423043251038, "sibling_score": 0.7632423043251038, "answer_score": null, "sibling_qid": "CHE-2026-09-3920-Q011", "sibling_text": "enclosed spaces definition", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "General enclosed-space entry procedure as second engineer", "cross_family": false }, { "answer_id": "ESE-P01-001", "score": 0.7156845927238464, "sibling_score": 0.7156845927238464, "answer_score": 0.442871555685997, "sibling_qid": "MUM-2026-05-3182-Q003", "sibling_text": "enclosed space definition", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "Definition and criteria of an enclosed space", "cross_family": false }, { "answer_id": "ESE-P02-008", "score": 0.7104013562202454, "sibling_score": 0.7104013562202454, "answer_score": null, "sibling_qid": "KOL-2018-08-0211-Q011", "sibling_text": "enclosed space", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "ESE-P02-08. Before, during and after: confirming a space is safe to enter", "cross_family": false } ] }, { "qid": "MUM-2025-07-0361-Q001", "text": "What types of ship sailed?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-07-0361", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.7937155365943909, "sibling_score": 0.7937155365943909, "answer_score": null, "sibling_qid": "CHE-2026-09-3938-Q001", "sibling_text": "types of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7600447535514832, "sibling_score": 0.7600447535514832, "answer_score": 0.47475382089614865, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7535479664802551, "sibling_score": 0.7535479664802551, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false } ] }, { "qid": "MUM-2025-07-0361-Q011", "text": "deficiencies under MLC", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2025-07-0361", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-007", "score": 0.6696428656578064, "sibling_score": 0.6696428656578064, "answer_score": 0.3371118813753128, "sibling_qid": "MUM-2026-01-0701-Q002", "sibling_text": "detainable deficiency of mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false }, { "answer_id": "AII-DISCH-007", "score": 0.2953462958335876, "sibling_score": null, "answer_score": 0.2953462958335876, "sibling_qid": "", "sibling_text": "what deficiency may be raised when the annex ii discharge criteria are not satisfied a non compliant discharge is an illegal nls discharge not a minor defect psc deficiency discharge outside reg 13 inadequate stripping cargo record book gaps or false entries potentially detainable", "sibling_family": "", "via": "answer_title", "answer_title": "What deficiency may be raised when the Annex II discharge criteria are not satisfied", "cross_family": false }, { "answer_id": "MLC-WRH-B-001", "score": 0.2837122321128845, "sibling_score": null, "answer_score": 0.2837122321128845, "sibling_qid": "", "sibling_text": "the dmlc part i and part ii contents who prepares who issues mlc regulation 5 1 3 and standard a5 1 3 the dmlc is attached to the maritime labour certificate a full certificate without a dmlc attached is incomplete part i drawn up by the flag state s competent authority the national requirements for the 16 areas of appendix a5 i with legal references plus any substantial equivalence article vi par", "sibling_family": "", "via": "answer_title", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false } ] }, { "qid": "MUM-2025-07-0362-Q002", "text": "What is intact stability.", "family": "Ship Construction & Stability", "subtopic": "Static / Dynamic Stability/damage stability", "tid": "MUM-2025-07-0362", "tray": "review", "candidates": [ { "answer_id": "STAB-SD-A-001", "score": 0.7266936302185059, "sibling_score": 0.7266936302185059, "answer_score": 0.3761179029941559, "sibling_qid": "CHE-2026-05-0626-Q017", "sibling_text": "intact stability", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Intact stability and the 2008 IS Code criteria", "cross_family": false }, { "answer_id": "SCS-DEF-001", "score": 0.6908660531044006, "sibling_score": 0.6908660531044006, "answer_score": 0.4640816628932953, "sibling_qid": "MUM-2025-06-0324-Q007", "sibling_text": "what is intact stability i told definition only", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "1. What is intact stability?", "cross_family": false }, { "answer_id": "STAB-GZ-P01-001", "score": 0.6765652894973755, "sibling_score": 0.6765652894973755, "answer_score": null, "sibling_qid": "KOC-2024-05-2047-Q002", "sibling_text": "intact stability", "sibling_family": "", "via": "sibling", "answer_title": "Draw and explain the statical stability (GZ) curve", "cross_family": false } ] }, { "qid": "MUM-2025-07-0363-Q001", "text": "Type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-07-0363", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8362626433372498, "sibling_score": 0.8362626433372498, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8015266060829163, "sibling_score": 0.8015266060829163, "answer_score": 0.5469691485166549, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8002626895904541, "sibling_score": 0.8002626895904541, "answer_score": 0.5215309828519821, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2025-07-0363-Q003", "text": "What is green seas", "family": "Risk & Safety Management", "subtopic": "Ship Grounding Plan", "tid": "MUM-2025-07-0363", "tray": "review", "candidates": [ { "answer_id": "CAS-ESTOP-001", "score": 0.6755038499832153, "sibling_score": 0.6755038499832153, "answer_score": null, "sibling_qid": "MUM-2026-01-0697-Q002", "sibling_text": "green seas", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "Engine-room flooding / rapidly rising bilges — immediate action as 2/E", "cross_family": false }, { "answer_id": "ALT-FUEL-001", "score": 0.6283360123634338, "sibling_score": 0.6283360123634338, "answer_score": null, "sibling_qid": "MUM-2026-01-0696-Q004", "sibling_text": "green sea", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "What alternative or latest marine fuels are used for decarbonisation?", "cross_family": false }, { "answer_id": "GHG-591-003", "score": 0.3894628882408142, "sibling_score": 0.3894628882408142, "answer_score": null, "sibling_qid": "KOC-2022-04-0072-Q007", "sibling_text": "green house effect green house gases which annex deals with it and measures to control green house gases on board ship", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Troposphere and above — how does this relate to the ship, which annex, and what controls it on board?", "cross_family": true } ] }, { "qid": "MUM-2025-07-0365-Q001", "text": "Construction of a oil tanker", "family": "Ship Construction & Stability", "subtopic": "", "tid": "MUM-2025-07-0365", "tray": "review", "candidates": [ { "answer_id": "COT-07", "score": 0.7673375010490417, "sibling_score": 0.7673375010490417, "answer_score": 0.5582328081130982, "sibling_qid": "KOC-2024-10-0444-Q004", "sibling_text": "construction of oil tanker", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Oil-tanker cargo-tank construction and strengthening", "cross_family": true }, { "answer_id": "TKR-TYPE-001", "score": 0.7438448667526245, "sibling_score": 0.7438448667526245, "answer_score": null, "sibling_qid": "MUM-2025-11-0553-Q002", "sibling_text": "construction of oil chem tanker", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "1. Crude oil tanker vs product tanker / carrier — construction and cargo-area differences", "cross_family": true }, { "answer_id": "KEEL-FRM-B-001", "score": 0.7318732738494873, "sibling_score": 0.7318732738494873, "answer_score": null, "sibling_qid": "CHE-2025-10-0078-Q011", "sibling_text": "ship construction for tankers from keel to top", "sibling_family": "", "via": "sibling", "answer_title": "Types of keel and keel selection", "cross_family": false } ] }, { "qid": "MUM-2025-07-0365-Q004", "text": "SOLAS Safety booklet contents ?", "family": "SOLAS - General (HOLD)", "subtopic": "", "tid": "MUM-2025-07-0365", "tray": "new", "candidates": [ { "answer_id": "FIRE-P05-01", "score": 0.6476584672927856, "sibling_score": 0.6476584672927856, "answer_score": 0.5359076887369155, "sibling_qid": "MUM-2026-09-3971-Q008", "sibling_text": "solas training manual contents", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Fire-safety training manual — SOLAS II-2 Reg 15 contents and location", "cross_family": true }, { "answer_id": "SOLAS-XII-BC-001", "score": 0.6294261813163757, "sibling_score": 0.6294261813163757, "answer_score": null, "sibling_qid": "MUM-2025-12-0619-Q006", "sibling_text": "under which chapter of solas safety fr bc", "sibling_family": "SOLAS - General (HOLD)", "via": "sibling", "answer_title": "Which SOLAS chapter covers additional safety for bulk carriers?", "cross_family": false }, { "answer_id": "LSA-LB-A-004", "score": 0.6201115846633911, "sibling_score": 0.6201115846633911, "answer_score": null, "sibling_qid": "KOL-2024-02-0817-Q003", "sibling_text": "lifeboat solas requirements and it s equipment", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat equipment / outfit per SOLAS-LSA Code", "cross_family": true } ] }, { "qid": "MUM-2025-07-0365-Q005", "text": "Explain MLC article 3", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2025-07-0365", "tray": "new", "candidates": [ { "answer_id": "AFS-309-001", "score": 0.4307495951652527, "sibling_score": 0.4307495951652527, "answer_score": null, "sibling_qid": "MUM-2025-02-0241-Q002", "sibling_text": "afs convention 3 dmlc 1 2 3", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "The AFS Convention — what it is, why it came, what it controls", "cross_family": true }, { "answer_id": "MLC-WRH-B-010", "score": 0.42739439010620117, "sibling_score": 0.42739439010620117, "answer_score": null, "sibling_qid": "MUM-2025-11-0573-Q004", "sibling_text": "how are wages set under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "SEA, the CBA parties, and how wages are set — action on non-payment", "cross_family": false }, { "answer_id": "MLC-WRH-B-006", "score": 0.40653425455093384, "sibling_score": 0.40653425455093384, "answer_score": 0.2595095828175545, "sibling_qid": "MUM-2026-07-3680-Q005", "sibling_text": "what is mlc certificate under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false } ] }, { "qid": "MUM-2025-07-1139-Q001", "text": "& 6 Type of ship, rank experience 4b", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-07-1139", "tray": "new", "candidates": [ { "answer_id": "LLST-AB-001", "score": 0.5430107116699219, "sibling_score": 0.5430107116699219, "answer_score": 0.3614126920700073, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.5059357285499573, "sibling_score": 0.5059357285499573, "answer_score": null, "sibling_qid": "MUM-2026-02-1280-Q001", "sibling_text": "type of ship done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.5058263540267944, "sibling_score": 0.5058263540267944, "answer_score": 0.386576309800148, "sibling_qid": "KOC-2024-11-0474-Q002", "sibling_text": "b60 type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2025-07-1139-Q002", "text": "Which engine Said 6s60mc & 6s60mcc", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2025-07-1139", "tray": "new", "candidates": [ { "answer_id": "EGTP-P02-012", "score": 0.5914888381958008, "sibling_score": 0.5914888381958008, "answer_score": 0.40591975450515744, "sibling_qid": "KOC-2025-10-1948-Q003", "sibling_text": "what is s in 6s 60mcc", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Stroke, Bore Ratio and Super-Long Stroke", "cross_family": true }, { "answer_id": "ENG-NOM-004", "score": 0.5847047567367554, "sibling_score": 0.5847047567367554, "answer_score": 0.4799280285835266, "sibling_qid": "KOL-2018-07-1396-Q001", "sibling_text": "motor what does each letter in 6s 60 mc c stand for", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Decode every letter and number: 6S60MC-C and 6S70ME-C", "cross_family": true }, { "answer_id": "ENG-NOM-003", "score": 0.5465716123580933, "sibling_score": 0.5465716123580933, "answer_score": null, "sibling_qid": "KOL-2018-03-1355-Q002", "sibling_text": "engine 6s60mcc what is s if it would be l then what does it mean stroke bore ratio of main engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Stroke letters S/L/K/G, stroke-bore ratio, mark and series number", "cross_family": true } ] }, { "qid": "MUM-2025-07-1139-Q003", "text": "Explain details of its name", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-07-1139", "tray": "new", "candidates": [ { "answer_id": "ENG-NOM-005", "score": 0.5838740468025208, "sibling_score": 0.5838740468025208, "answer_score": null, "sibling_qid": "MUM-2026-09-3880-Q002", "sibling_text": "nomenclature full explain", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true }, { "answer_id": "ENG-NOM-004", "score": 0.5633939504623413, "sibling_score": 0.5633939504623413, "answer_score": null, "sibling_qid": "KOL-2024-07-1948-Q003", "sibling_text": "explain nomenclature of each term", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Decode every letter and number: 6S60MC-C and 6S70ME-C", "cross_family": true }, { "answer_id": "ENG-NOM-001", "score": 0.557932436466217, "sibling_score": 0.557932436466217, "answer_score": null, "sibling_qid": "MUM-2026-06-3420-Q002", "sibling_text": "nomenclature of me ae explain full", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Nomenclature of ME and AE (asked together)", "cross_family": true } ] }, { "qid": "MUM-2025-07-1139-Q008", "text": "Boiler safeties", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2025-07-1139", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-008", "score": 0.7709344029426575, "sibling_score": 0.7709344029426575, "answer_score": null, "sibling_qid": "MUM-2026-05-3078-Q008", "sibling_text": "safeties on boiler", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-003", "score": 0.6868404746055603, "sibling_score": 0.6868404746055603, "answer_score": null, "sibling_qid": "KOL-2026-02-2040-Q006", "sibling_text": "boiler safety v v setting boiler accumulation pr test", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "The accumulation test and the safety valve — required lift, how lift and capacity are verified, and why accumulation must stay inside the limit", "cross_family": false }, { "answer_id": "BLR-SURV-P02-007", "score": 0.6723016500473022, "sibling_score": 0.6723016500473022, "answer_score": null, "sibling_qid": "KOC-2023-03-0161-Q006", "sibling_text": "boiler solas regulations and safety explain", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "MUM-2025-07-1140-Q002", "text": "Which all ship you have done after class 4?I said Product tankers", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-07-1140", "tray": "new", "candidates": [ { "answer_id": "COT-01", "score": 0.6349191069602966, "sibling_score": 0.6349191069602966, "answer_score": null, "sibling_qid": "KOC-2026-04-0892-Q003", "sibling_text": "type of ship sailed tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Oil-tanker types, definitions and cargo capability", "cross_family": false }, { "answer_id": "CPFE-583-002", "score": 0.6289926767349243, "sibling_score": 0.6289926767349243, "answer_score": null, "sibling_qid": "MUM-2026-02-0791-Q002", "sibling_text": "types of ships sailed product chemical", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Why a submerged hydraulic pump on a product or chemical tanker — and what makes a cargo pump different", "cross_family": false }, { "answer_id": "SOLAS12-BC-A-001", "score": 0.6240767240524292, "sibling_score": 0.6240767240524292, "answer_score": null, "sibling_qid": "MUM-2026-04-2958-Q001", "sibling_text": "ship done bulk carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "SOLAS definition and scope of a bulk carrier", "cross_family": false } ] }, { "qid": "MUM-2025-07-1140-Q003", "text": "Q.constructuon difference in 4s and 2s", "family": "General Marine Engineering", "subtopic": "", "tid": "MUM-2025-07-1140", "tray": "new", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.44051671028137207, "sibling_score": 0.44051671028137207, "answer_score": null, "sibling_qid": "MUM-2025-12-2899-Q004", "sibling_text": "difference in 4s and 2s", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": true }, { "answer_id": "PST-CSI-BF-004", "score": 0.37545135617256165, "sibling_score": 0.37545135617256165, "answer_score": 0.31498267948627473, "sibling_qid": "MUM-2025-10-2863-Q001", "sibling_text": "diffrence between piston construction in 2s and 4s", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Difference between piston construction in a two-stroke and a four-stroke engine", "cross_family": true }, { "answer_id": "RES-PROP-P03-002", "score": 0.3526797294616699, "sibling_score": 0.3526797294616699, "answer_score": null, "sibling_qid": "KOL-2018-12-0249-Q004", "sibling_text": "4 qpc", "sibling_family": "", "via": "sibling", "answer_title": "2. Propulsive coefficients: QPC, hull/propeller/relative-rotative efficiency, wake, slip and propeller curves", "cross_family": false } ] }, { "qid": "MUM-2025-07-1140-Q006", "text": "Q.crank cas inspection and cross", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-07-1140", "tray": "new", "candidates": [ { "answer_id": "AECR-651-001", "score": 0.6354357600212097, "sibling_score": 0.6354357600212097, "answer_score": null, "sibling_qid": "MUM-2022-08-2142-Q002", "sibling_text": "checks on connecting rod of ae cross q", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What checks do you carry out on the connecting rod of an AE / DG — inspection, overhaul checks and the trueness check?", "cross_family": true }, { "answer_id": "XHD-BRG-B-003", "score": 0.6061081290245056, "sibling_score": 0.6061081290245056, "answer_score": 0.433302503824234, "sibling_qid": "KOL-2026-07-4248-Q004", "sibling_text": "crankpin journal inspecrion and cross", "sibling_family": "Diesel Engines - General", "via": "sibling", "answer_title": "Inspecting the crosshead pin and bottom shell once out", "cross_family": true }, { "answer_id": "CYL-LINER-P03-007", "score": 0.5653016567230225, "sibling_score": 0.5653016567230225, "answer_score": null, "sibling_qid": "KOL-2019-12-1879-Q001", "sibling_text": "liner inspection n cross q", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Cylinder liner checks at overhaul, decarb and under-piston inspection", "cross_family": true } ] }, { "qid": "MUM-2025-07-1142-Q002", "text": "What is two step down??", "family": "", "subtopic": "", "tid": "MUM-2025-07-1142", "tray": "new", "candidates": [ { "answer_id": "CTRL-TL-005", "score": 0.4811592102050781, "sibling_score": 0.4811592102050781, "answer_score": 0.26599730402231214, "sibling_qid": "MUM-2025-07-0354-Q009", "sibling_text": "2 step control", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Two-step (two-position / on-off) controller", "cross_family": false }, { "answer_id": "XFMR-THY-G-007", "score": 0.3653813600540161, "sibling_score": 0.3653813600540161, "answer_score": 0.32031435072422026, "sibling_qid": "KOL-2022-07-2582-Q007", "sibling_text": "why step down is required", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "7. Step-up / step-down: the real purpose onboard", "cross_family": false }, { "answer_id": "BWM-D1D2-P04-001", "score": 0.33174604177474976, "sibling_score": 0.33174604177474976, "answer_score": null, "sibling_qid": "KOC-2025-06-0609-Q005", "sibling_text": "2 btws d2 g7 g8", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "D-2 standard and G7 — risk assessment for Regulation A-4 exemptions", "cross_family": false } ] }, { "qid": "MUM-2025-07-1142-Q003", "text": "Auxiliary engine not stopping after giving command how will you stop?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE 4-Stroke Theory", "tid": "MUM-2025-07-1142", "tray": "new", "candidates": [ { "answer_id": "AEDEC-291-005", "score": 0.603725254535675, "sibling_score": 0.603725254535675, "answer_score": null, "sibling_qid": "KOC-2025-10-1965-Q011", "sibling_text": "explain running in procedure of aux engine", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "5. Running-in, gradual loading, confirming run-in", "cross_family": false }, { "answer_id": "ALT-MTN-B-001", "score": 0.5923642516136169, "sibling_score": 0.5923642516136169, "answer_score": null, "sibling_qid": "MUM-2023-05-0950-Q007", "sibling_text": "suppose your generator is not stopping from control room after stopping your action", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Routine onboard alternator maintenance checks", "cross_family": true }, { "answer_id": "AEDEC-291-001", "score": 0.576507568359375, "sibling_score": 0.576507568359375, "answer_score": null, "sibling_qid": "KOL-2022-01-3999-Q008", "sibling_text": "auxiliary engine overhaul how will you proceed got disconnected upon rejoin he was angry and said repeat both", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "1. AE decarb / overhaul — preparation and full procedure", "cross_family": false } ] }, { "qid": "MUM-2025-07-1143-Q002", "text": "Vessel you sailed", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-07-1143", "tray": "review", "candidates": [ { "answer_id": "CHEM-PA-011", "score": 0.7533109784126282, "sibling_score": 0.7533109784126282, "answer_score": null, "sibling_qid": "MUM-2026-03-2938-Q002", "sibling_text": "which vessel", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "What ‘en route’ means for Annex II discharge", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.7369484901428223, "sibling_score": 0.7369484901428223, "answer_score": null, "sibling_qid": "CHE-2026-02-0481-Q001", "sibling_text": "type of vessels sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 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"sibling_qid": "KOL-2018-07-1393-Q005", "sibling_text": "arrangement for expansion of t c shaft with outboard bearings", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "General construction and turbocharger arrangement", "cross_family": false }, { "answer_id": "BRG-NOM-002", "score": 0.5258404612541199, "sibling_score": 0.5258404612541199, "answer_score": 0.4226991981267929, "sibling_qid": "MUM-2026-06-3376-Q016", "sibling_text": "for which thrust it s used difference b w ball and roller bearing", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Ball, Roller, Radial and Axial Bearings — Choosing the Type", "cross_family": false } ] }, { "qid": "MUM-2025-07-1147-Q002", "text": "types of ship sailed", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-07-1147", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.829597532749176, "sibling_score": 0.829597532749176, "answer_score": null, "sibling_qid": "CHE-2026-09-3938-Q001", "sibling_text": "types of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7974902391433716, "sibling_score": 0.7974902391433716, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.783111035823822, "sibling_score": 0.783111035823822, "answer_score": null, "sibling_qid": "CHE-2026-03-0253-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "MUM-2025-07-1147-Q003", "text": "engine specifications", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2025-07-1147", "tray": "review", "candidates": [ { "answer_id": "ENG-NOM-006", "score": 0.8371808528900146, "sibling_score": 0.8371808528900146, "answer_score": null, "sibling_qid": "CHE-2026-03-0181-Q001", "sibling_text": "engine specification", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Short-form asks: SMC-C, LMC, and ME vs MC quickly", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7628996968269348, "sibling_score": 0.7628996968269348, "answer_score": null, "sibling_qid": "MUM-2026-07-3719-Q006", "sibling_text": "type of engine and it s specification", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false }, { "answer_id": "ETP-344-P03-003", "score": 0.5393383473157882, "sibling_score": null, "answer_score": 0.5393383473157882, "sibling_qid": "", "sibling_text": "engine nomenclature layout mark number and engine constant designation order man b w cylinders stroke bore letter k l s g bore in cm m programme concept e electronic c camshaft design c compact b camshaft controlled exhaust hybrid mark number gi if gas injection tier rating stroke bore letters k short l long s super long g ultra long green the ratios are approximate design values not exact", "sibling_family": "", "via": "answer_title", "answer_title": "Engine nomenclature, layout, mark number and engine constant", "cross_family": false } ] }, { "qid": "MUM-2025-07-1147-Q011", "text": "Temporary and permanent hardness", "family": "NDT & Material Testing", "subtopic": "Brinelling / Hardness", "tid": "MUM-2025-07-1147", "tray": "new", "candidates": [ { "answer_id": "BRHD-528-002", "score": 0.6329865455627441, "sibling_score": 0.6329865455627441, "answer_score": 0.4451677978038788, "sibling_qid": "KOC-2024-09-1868-Q003", "sibling_text": "what is hardness and its unit", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "What is hardness and its unit, and what is the Brinell hardness / Brinell number?", "cross_family": false }, { "answer_id": "HT-TCS-B-001", "score": 0.6259841322898865, "sibling_score": 0.6259841322898865, "answer_score": null, "sibling_qid": "KOL-2020-11-1560-Q004", "sibling_text": "tempering hardening temp", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Tempering — purpose, classes and where it is used on board", "cross_family": false }, { "answer_id": "BRHD-528-003", "score": 0.6232239603996277, "sibling_score": 0.6232239603996277, "answer_score": null, "sibling_qid": "KOL-2021-07-3428-Q004", "sibling_text": "hardness test", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "How is a material hardness test carried out?", "cross_family": false } ] }, { "qid": "MUM-2025-07-1147-Q013", "text": "Detuner and damper", "family": "Electrical - Generator & Alternator", "subtopic": "Detuner / Damper Winding", "tid": "MUM-2025-07-1147", "tray": "review", "candidates": [ { "answer_id": "VIB-BAL-B-004", "score": 0.7828761339187622, "sibling_score": 0.7828761339187622, "answer_score": 0.5515284478664398, "sibling_qid": "MUM-2026-03-1303-Q013", "sibling_text": "detuner and damper", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Detuner / detuning wheel versus damper", "cross_family": false }, { "answer_id": "VIB-BAL-B-002", "score": 0.611198902130127, "sibling_score": 0.611198902130127, "answer_score": null, "sibling_qid": "KOL-2026-07-4258-Q002", "sibling_text": "axial vibration difference between vibration damper and detuner", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Axial vibration and the axial vibration damper", "cross_family": true }, { "answer_id": "VIB-BAL-A-006", "score": 0.4815848410129547, "sibling_score": null, "answer_score": 0.4815848410129547, "sibling_qid": "", "sibling_text": "vib a 06 types of vibration dampers and compensators and where they are located torsional vibration damper detuner crankshaft free fore end viscous silicone damper spring e g geislinger damper or tuning wheel detuner controls torsional vibration of the crankshaft and shafting construction detail dampers volume axial vibration damper crankshaft fore end oil damped piston collar and split housing fo", "sibling_family": "", "via": "answer_title", "answer_title": "VIB-A-06 — Types of vibration dampers and compensators, and where they are located", "cross_family": false } ] }, { "qid": "MUM-2025-07-1148-Q002", "text": "types of ship you sailed", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-07-1148", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8077711462974548, "sibling_score": 0.8077711462974548, "answer_score": null, "sibling_qid": "CHE-2026-09-3938-Q001", "sibling_text": "types of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.781182587146759, "sibling_score": 0.781182587146759, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7610946297645569, "sibling_score": 0.7610946297645569, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "MUM-2025-07-1148-Q003", "text": "Engine nomenclature", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2025-07-1148", "tray": "review", "candidates": [ { "answer_id": "ENG-NOM-005", "score": 0.8079959750175476, "sibling_score": 0.8079959750175476, "answer_score": 0.5279884576797486, "sibling_qid": "MUM-2026-05-3153-Q007", "sibling_text": "engines nomenclature", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false }, { "answer_id": "ETP-344-P03-003", "score": 0.5836586117744446, "sibling_score": null, "answer_score": 0.5836586117744446, "sibling_qid": "", "sibling_text": "engine nomenclature layout mark number and engine constant designation order man b w cylinders stroke bore letter k l s g bore in cm m programme concept e electronic c camshaft design c compact b camshaft controlled exhaust hybrid mark number gi if gas injection tier rating stroke bore letters k short l long s super long g ultra long green the ratios are approximate design values 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water transducer working", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "ALCAP and the water transducer", "cross_family": false } ] }, { "qid": "MUM-2025-07-1148-Q006", "text": "Pairing disk function.", "family": "Purifier & Centrifuges", "subtopic": "Pairing Disc", "tid": "MUM-2025-07-1148", "tray": "review", "candidates": [ { "answer_id": "PARD-330-001", "score": 0.7169839143753052, "sibling_score": 0.7169839143753052, "answer_score": 0.2913515955209732, "sibling_qid": "MUM-2025-09-1190-Q002", "sibling_text": "pairing disc", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "What is the function of the paring disc in a purifier, and where is it fitted?", "cross_family": false }, { "answer_id": "PUR-OPS-P01-005", "score": 0.7142428755760193, "sibling_score": 0.7142428755760193, "answer_score": null, "sibling_qid": "KOL-2021-11-3481-Q003", "sibling_text": "pairing disc location n function", "sibling_family": "Purifier & 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"MUM-2025-07-1149-Q005", "text": "Checks before starting a DG after a major overhaul as per 2e", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE 4-Stroke Theory", "tid": "MUM-2025-07-1149", "tray": "new", "candidates": [ { "answer_id": "AEDEC-291-003", "score": 0.57121741771698, "sibling_score": 0.57121741771698, "answer_score": 0.37500565201044084, "sibling_qid": "KOL-2017-08-1316-Q009", "sibling_text": "after overhaul of generator wat all checks we do before starting generator", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "3. Pre-start checks after decarb / recommissioning", "cross_family": false }, { "answer_id": "DDHSC-004", "score": 0.5039554834365845, "sibling_score": 0.5039554834365845, "answer_score": null, "sibling_qid": "KOC-2025-12-1986-Q003", "sibling_text": "first checks after dd", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "What checks are carried out after docking, and what are the first checks once the ship is out of dock?", "cross_family": true }, { "answer_id": "AECR-651-001", "score": 0.4965566396713257, "sibling_score": 0.4965566396713257, "answer_score": null, "sibling_qid": "MUM-2025-11-2495-Q009", "sibling_text": "checks in dg conrod", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What checks do you carry out on the connecting rod of an AE / DG — inspection, overhaul checks and the trueness check?", "cross_family": true } ] }, { "qid": "MUM-2025-07-1150-Q015", "text": "Latest engine types", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2025-07-1150", "tray": "new", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.6380484700202942, "sibling_score": 0.6380484700202942, "answer_score": null, "sibling_qid": "KOL-2026-03-2048-Q001", "sibling_text": "type of engine done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "MCC-MEB-P02-001", "score": 0.6243935823440552, "sibling_score": 0.6243935823440552, "answer_score": null, "sibling_qid": "CHE-2026-03-0182-Q008", "sibling_text": "latest develop in me engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Trace the development from MC / SMC engines to MC-C and ME engines", "cross_family": true }, { "answer_id": "ENG-NOM-005", "score": 0.6149572730064392, "sibling_score": 0.6149572730064392, "answer_score": null, "sibling_qid": "MUM-2026-09-3915-Q001", "sibling_text": "type of engine me and ae", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false } ] }, { "qid": "MUM-2025-07-1548-Q001", "text": "(First Attempt for Function 5)", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-07-1548", "tray": "new", "candidates": [ { "answer_id": "TC-A-010", "score": 0.48961707949638367, "sibling_score": 0.48961707949638367, "answer_score": null, "sibling_qid": "KOL-2018-05-3963-Q008", "sibling_text": "what is impedence 5 rao gave me func 5 asked me to repeat func 3", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Impedance and the RC circuit — finding Xc and XL", "cross_family": true }, { "answer_id": "IMO-CODES-P03-002", "score": 0.46318432688713074, "sibling_score": 0.46318432688713074, "answer_score": null, "sibling_qid": "MUM-2026-03-0815-Q003", "sibling_text": "which function", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": false }, { "answer_id": "LLC-SURV-P02-002", "score": 0.45888644456863403, "sibling_score": 0.45888644456863403, "answer_score": null, "sibling_qid": "KOL-2022-02-0601-Q004", "sibling_text": "sheer 5", "sibling_family": "", "via": "sibling", "answer_title": "2. Structural and watertight-integrity items: sheer, superstructure and flush deck", "cross_family": false } ] }, { "qid": "MUM-2025-07-1549-Q005", "text": "Difference between phase angle and phase directon", "family": "Electrical - Distribution & MSB", "subtopic": "", "tid": "MUM-2025-07-1549", "tray": "review", "candidates": [ { "answer_id": "SYNC-B-002", "score": 0.6526501178741455, "sibling_score": 0.6526501178741455, "answer_score": 0.47914081215858456, "sibling_qid": "MUM-2026-09-3871-Q007", "sibling_text": "phase angle", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Phase angle and the in-phase (12 o’clock) condition", "cross_family": true }, { "answer_id": "SYNC-B-003", "score": 0.6140450835227966, "sibling_score": 0.6140450835227966, "answer_score": null, "sibling_qid": "MUM-2026-09-3873-Q006", "sibling_text": "phase sequence and phase angle", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Phase sequence — what it is and how it is matched", "cross_family": true }, { "answer_id": "PH-SEQ-001", "score": 0.5816224813461304, "sibling_score": 0.5816224813461304, "answer_score": 0.4583364725112915, "sibling_qid": "MUM-2026-02-1936-Q004", "sibling_text": "what is phase sequence and phase angle", "sibling_family": "", "via": "sibling", "answer_title": "What is phase sequence, and how is it related to phase angle?", "cross_family": false } ] }, { "qid": "MUM-2025-07-1550-Q002", "text": "What is uvt coil", "family": "Electrical - Protection & Relays", "subtopic": "Undervoltage Trip / UVT Coil", "tid": "MUM-2025-07-1550", "tray": "review", "candidates": [ { "answer_id": "OC-UV-TRIP-001", "score": 0.7209088206291199, "sibling_score": 0.7209088206291199, "answer_score": 0.30380089282989503, "sibling_qid": "MUM-2026-01-1905-Q001S2", "sibling_text": "uvt coil", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Under-voltage trip / no-volt coil — purpose, working, onboard test and calibration", "cross_family": false }, { "answer_id": "HV-SYS-P05-002", "score": 0.4770662188529968, "sibling_score": 0.4770662188529968, "answer_score": null, "sibling_qid": "MUM-2026-03-2026-Q001", "sibling_text": "what is bonding what is uvt coil how you work on hv system waiting in lobby", "sibling_family": "", "via": "sibling", "answer_title": "Working on the HV system: precautions, isolation and earthing before maintenance", "cross_family": false }, { "answer_id": "TC-A-006", "score": 0.41818875074386597, "sibling_score": 0.41818875074386597, "answer_score": null, "sibling_qid": "KOC-2024-05-1355-Q005", "sibling_text": "explain opamp internal how to test uvt in front of surveyor", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "The operational amplifier — what it is and why \"operational\"", "cross_family": true } ] }, { "qid": "MUM-2025-07-1553-Q001", "text": "Type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-07-1553", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8362626433372498, "sibling_score": 0.8362626433372498, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8015266060829163, "sibling_score": 0.8015266060829163, "answer_score": 0.5469690978527069, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8002626895904541, "sibling_score": 0.8002626895904541, "answer_score": 0.5215309828519821, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2025-07-1554-Q005", "text": "started.no", "family": "", "subtopic": "", "tid": "MUM-2025-07-1554", "tray": "new", "candidates": [ { "answer_id": "ME-NOSTART-004", "score": 0.6365056037902832, "sibling_score": 0.6365056037902832, "answer_score": null, "sibling_qid": "KOL-2021-08-1623-Q005", "sibling_text": "m e not starting on astern command", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Will not start on astern command — checks and causes", "cross_family": false }, { "answer_id": "SOFT-START-P01-001", "score": 0.6242210268974304, "sibling_score": 0.6242210268974304, "answer_score": null, "sibling_qid": "KOC-2022-12-0121-Q018", "sibling_text": "soft starter told not prepared fn", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Soft Starter — Definition, Purpose and Working", "cross_family": false }, { "answer_id": "STARTER-DEC-B-002", "score": 0.6006353497505188, "sibling_score": 0.6006353497505188, "answer_score": null, "sibling_qid": "KOC-2025-03-1517-Q006", "sibling_text": "why starting method required", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Why a starter is needed & reducing starting current", "cross_family": false } ] }, { "qid": "MUM-2025-07-1554-Q006", "text": "voltage in voltmeter", "family": "", "subtopic": "", "tid": "MUM-2025-07-1554", "tray": "review", "candidates": [ { "answer_id": "GMCM-583-A-004", "score": 0.6609035730361938, "sibling_score": 0.6609035730361938, "answer_score": 0.5453205436468124, "sibling_qid": "KOL-2020-03-2380-Q005", "sibling_text": "multimeter how much max voltage measure", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "04. Measuring voltage — parallel connection, the meter's maximum, and measuring without a multimeter", "cross_family": false }, { "answer_id": "GMC-583-B-002", "score": 0.6590791940689087, "sibling_score": 0.6590791940689087, "answer_score": null, "sibling_qid": "KOL-2016-11-2079-Q003", "sibling_text": "working of voltmeter", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Ammeter and voltmeter — the constructional difference and how each works", "cross_family": false }, { "answer_id": "GMC-583-B-003", "score": 0.642232358455658, "sibling_score": 0.642232358455658, "answer_score": null, "sibling_qid": "KOL-2016-09-2072-Q005", "sibling_text": "hw is d terminals of voltmeter connected in d ckt", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Connecting the meters in circuit, and extending the range with a shunt or a multiplier", "cross_family": false } ] }, { "qid": "MUM-2025-07-1554-Q007", "text": "Residual magnetism", "family": "Electrical - Generator & Alternator", "subtopic": "Residual Magnetism / Flashing", "tid": "MUM-2025-07-1554", "tray": "review", "candidates": [ { "answer_id": "RES-MAG-001", "score": 0.8039289116859436, "sibling_score": 0.8039289116859436, "answer_score": 0.5071292996406555, "sibling_qid": "KOC-2026-04-0911-Q002", "sibling_text": "residual magnetism", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Residual magnetism — what it is, where it is stored, how it is lost and how you restore it", "cross_family": false }, { "answer_id": "AR-263-001", "score": 0.3509461283683777, "sibling_score": null, "answer_score": 0.3509461283683777, "sibling_qid": "", "sibling_text": "what is armature reaction and where is it found armature mmf from load current acting on the main field mmf no load current no reaction with brushes on neutral the dc machine effect is mainly cross magnetizing pole tip saturation still gives a small net flux weakening a true demagnetizing component comes in only when the brushes are shifted off neutral", "sibling_family": "", "via": "answer_title", "answer_title": "What is armature reaction, and where is it found?", "cross_family": false }, { "answer_id": "XFMR-THY-G-004", "score": 0.3461616784334183, "sibling_score": null, "answer_score": 0.3461616784334183, "sibling_qid": "", "sibling_text": "4 transformer leakage flux and magnetic reluctance", "sibling_family": "", "via": "answer_title", "answer_title": "4. Transformer leakage flux and magnetic reluctance", "cross_family": false } ] }, { "qid": "MUM-2025-07-1554-Q008", "text": "Flashing up procedure", "family": "Electrical - Generator & Alternator", "subtopic": "Residual Magnetism / Flashing", "tid": "MUM-2025-07-1554", "tray": "review", "candidates": [ { "answer_id": "RES-MAG-004", "score": 0.7642059922218323, "sibling_score": 0.7642059922218323, "answer_score": 0.29383615553379056, "sibling_qid": "MUM-2026-06-3511-Q011", "sibling_text": "flashing up procedure", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Field flashing — the procedure, where the battery connects, which terminal, and the precautions", "cross_family": false }, { "answer_id": "BLR-OPS-001", "score": 0.28197015225887295, "sibling_score": null, "answer_score": 0.28197015225887295, "sibling_qid": "", "sibling_text": "explain the procedure for raising steam in an auxiliary boiler from cold confirm water level true blow through both gauge glasses before firing open the air vent cock close it only once steam issues steadily", "sibling_family": "", "via": "answer_title", "answer_title": "Explain the procedure for raising steam in an auxiliary boiler from cold.", "cross_family": false }, { "answer_id": "SYNC-C-002", "score": 0.2601906329393387, "sibling_score": null, "answer_score": 0.2601906329393387, "sibling_qid": "", "sibling_text": "synchronising without a synchroscope lamp voltmeter and alternative methods same physics as the synchroscope find the instant the two sets are in phase equal voltage zero phase difference only the indicator changes three lamp all dark method one lamp across each pair of like phases r r y y b b sequence correct all three flash in unison sequence wrong they brighten in rotation flash rate frequency ", "sibling_family": "", "via": "answer_title", "answer_title": "Synchronising without a synchroscope — lamp, voltmeter and alternative methods", "cross_family": false } ] }, { "qid": "MUM-2025-07-1555-Q004", "text": "VFD... Cross que", "family": "Electrical - Distribution & MSB", "subtopic": "", "tid": "MUM-2025-07-1555", "tray": "new", "candidates": [ { "answer_id": "VFD-INV-P01-001", "score": 0.5896546244621277, "sibling_score": 0.5896546244621277, "answer_score": null, "sibling_qid": "KOL-2025-08-2842-Q011", "sibling_text": "vfd in detail cross ques", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a VFD and what does it do?", "cross_family": true }, { "answer_id": "VFD-INV-P01-002", "score": 0.4878799617290497, "sibling_score": 0.4878799617290497, "answer_score": null, "sibling_qid": "KOC-2023-01-1227-Q005", "sibling_text": "vfd where used", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Where is a VFD used onboard, and why?", "cross_family": true }, { "answer_id": "BOW-THR-003", "score": 0.47264569997787476, "sibling_score": 0.47264569997787476, "answer_score": null, "sibling_qid": "KOC-2025-12-1662-Q002", "sibling_text": "vfd cross connected with bow thruster", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Bow-thruster motor — type, supply voltage, starter, connection and VFD control", "cross_family": true } ] }, { "qid": "MUM-2025-07-1556-Q001", "text": "Types of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-07-1556", "tray": "review", "candidates": [ { "answer_id": "LLST-AB-001", "score": 0.8171428442001343, "sibling_score": 0.8171428442001343, "answer_score": 0.5332004606723785, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.793716549873352, "sibling_score": 0.793716549873352, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.7863535284996033, "sibling_score": 0.7863535284996033, "answer_score": 0.5276511371135711, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2025-07-1556-Q005", "text": "Diff between Air and vaccum cb", "family": "Electrical - Protection & Relays", "subtopic": "", "tid": "MUM-2025-07-1556", "tray": "new", "candidates": [ { "answer_id": "CBKR-D-ISORACK-001", "score": 0.5673016309738159, "sibling_score": 0.5673016309738159, "answer_score": null, "sibling_qid": "MUM-2025-08-1592-Q003", "sibling_text": "acb maintenance procedure racking up etc x questions diff between air and vaccum cb", "sibling_family": "", "via": "sibling", "answer_title": "How do you safely isolate, rack out, withdraw and prove dead an ACB/VCB before work?", "cross_family": false }, { "answer_id": "MAC-353-003", "score": 0.5052523612976074, "sibling_score": 0.5052523612976074, "answer_score": null, "sibling_qid": "MUM-2026-09-3892-Q007", "sibling_text": "difference in suction type and valve type", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Main air compressor suction / delivery valve inspection and overhaul", "cross_family": true }, { "answer_id": "CBKR-H-001", "score": 0.47734612226486206, "sibling_score": 0.47734612226486206, "answer_score": null, "sibling_qid": "KOL-2017-12-2161-Q001", "sibling_text": "vacuum cb where it is used and advantage of hv system", "sibling_family": "", "via": "sibling", "answer_title": "How do VCB and SF6 breakers work in a high-voltage system, and why are they used instead of an ACB?", "cross_family": false } ] }, { "qid": "MUM-2025-07-1556-Q010", "text": "Sea water temp relation", "family": "", "subtopic": "", "tid": "MUM-2025-07-1556", "tray": "review", "candidates": [ { "answer_id": "ACJCW-010", "score": 0.7668039798736572, "sibling_score": 0.7668039798736572, "answer_score": 0.532352802157402, "sibling_qid": "MUM-2025-08-1592-Q005", "sibling_text": "sea water temp relation", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Effect of sea-water temperature on cooler performance", "cross_family": false }, { "answer_id": "ICCP-P02-003", "score": 0.7419558763504028, "sibling_score": 0.7419558763504028, "answer_score": 0.47987077832221986, "sibling_qid": "KOC-2026-01-1685-Q009", "sibling_text": "sea water temp relationship in iccp", "sibling_family": "Electrical - 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Deck isolating valve, deck relief/safety devices, and cargo-tank pressure", "cross_family": false }, { "answer_id": "ICCP-P02-003", "score": 0.5589754581451416, "sibling_score": 0.5589754581451416, "answer_score": null, "sibling_qid": "MUM-2026-02-1972-Q001", "sibling_text": "explain iccp fully why iccp is switched off in port", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP operation — port / berth practice, seawater temperature, starting & adjustment", "cross_family": false }, { "answer_id": "BULWARK-003", "score": 0.5105488300323486, "sibling_score": 0.5105488300323486, "answer_score": null, "sibling_qid": "MUM-2020-08-0003-Q006", "sibling_text": "freeing port and purpose", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "What are freeing ports in a bulwark, and what is their purpose?", "cross_family": false } ] }, { "qid": "MUM-2025-07-1560-Q005", "text": "5 exi limits and categories", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "MUM-2025-07-1560", "tray": "new", "candidates": [ { "answer_id": "BWM-D1D2-P03-001", "score": 0.45821282267570496, "sibling_score": 0.45821282267570496, "answer_score": null, "sibling_qid": "KOC-2024-08-0394-Q008", "sibling_text": "d2 all limits and regulations with values and name", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Regulation D-2 — ballast water performance / discharge standardHigh", "cross_family": false }, { "answer_id": "SOX-LIMIT-001", "score": 0.4397065043449402, "sibling_score": 0.4397065043449402, "answer_score": null, "sibling_qid": "KOC-2024-10-0431-Q014", "sibling_text": "sox limits", "sibling_family": "MARPOL - 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Motors & Starters", "via": "sibling", "answer_title": "What type of motor is the steering gear motor, how does it differ from other engine-room motors, and how do you order one?", "cross_family": false } ] }, { "qid": "MUM-2025-07-1563-Q002", "text": "plc battery renewal and cross", "family": "Electrical - Electronics & Power Conversion", "subtopic": "PLC", "tid": "MUM-2025-07-1563", "tray": "review", "candidates": [ { "answer_id": "EPC-P03-002", "score": 0.6770258545875549, "sibling_score": 0.6770258545875549, "answer_score": null, "sibling_qid": "MUM-2026-06-3531-Q010S2", "sibling_text": "plc battery how to change decider ques", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What are the components and parts of a PLC — including the memory types and what data is stored in each?", "cross_family": false }, { "answer_id": "BDC-P01-03", "score": 0.6345057487487793, "sibling_score": 0.6345057487487793, "answer_score": null, "sibling_qid": "MUM-2026-04-2953-Q006", "sibling_text": "plc battery voltage", "sibling_family": "Electrical - 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ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP reference cell / reference electrode — purpose, material, location, selection", "cross_family": false }, { "answer_id": "ICCP-P02-002", "score": 0.4645528197288513, "sibling_score": 0.4645528197288513, "answer_score": 0.3403851270675659, "sibling_qid": "MUM-2026-06-3355-Q016", "sibling_text": "where exactly is iccp anodes fitted", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP drydock checks — anodes, shields, reference cells, bonding, hull", "cross_family": false } ] }, { "qid": "MUM-2025-07-2329-Q001", "text": "Checks on 4-S piston after overhaul.", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Piston & Piston Rings", "tid": "MUM-2025-07-2329", "tray": "review", "candidates": [ { "answer_id": "PIST-CSI-C-002", "score": 0.6836335062980652, "sibling_score": 0.6836335062980652, "answer_score": 0.4706193387508392, "sibling_qid": "CHE-2026-08-3875-Q005", "sibling_text": "piston checks after overhaul pressure test", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Piston pressure / hydraulic leak testing after overhaul", "cross_family": false }, { "answer_id": "PIST-CSI-B-003", "score": 0.6433833837509155, "sibling_score": 0.6433833837509155, "answer_score": null, "sibling_qid": "KOL-2021-01-1573-Q001", "sibling_text": "checks on piston after removal", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Inspecting, calibrating and gauging a removed piston", "cross_family": true }, { "answer_id": "PST-CSI-BF-007", "score": 0.6379903554916382, "sibling_score": 0.6379903554916382, "answer_score": 0.4630136162042618, "sibling_qid": "KOC-2025-04-1037-Q016", "sibling_text": "checks on piston", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "The piston is out — what checks do you carry out on it?", "cross_family": true } ] }, { "qid": "MUM-2025-07-2329-Q002", "text": "If received engineer's call alarm, found major SW leak near sea chest, actions as 2/E", "family": "Fault Diagnosis & 2/E Actions", "subtopic": "Fault Diagnosis / 2E Action", "tid": "MUM-2025-07-2329", "tray": "review", "candidates": [ { "answer_id": "SEA-CHEST-006", "score": 0.7490289807319641, "sibling_score": 0.7490289807319641, "answer_score": null, "sibling_qid": "MUM-2026-01-2529-Q004", "sibling_text": "3 e raised engineer call and he s on bottom platform water has reached above bottom reason is leak has happened in common sea chest valve your action as 2e", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "2/E actions: leak, crack, fouling, stuck valve, valve-life", "cross_family": true }, { "answer_id": "CAS-ESTOP-001", "score": 0.6869218945503235, "sibling_score": 0.6869218945503235, "answer_score": 0.5490206837654114, "sibling_qid": "MUM-2025-07-2814-Q010", "sibling_text": "engine room flooding 3e gave engineer call alarm your 1st action as 2e", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Engine-room flooding / rapidly rising bilges — immediate action as 2/E", "cross_family": true }, { "answer_id": "BNKSP-330-001", "score": 0.6200171113014221, "sibling_score": 0.6200171113014221, "answer_score": null, "sibling_qid": "MUM-2026-02-0737-Q003", "sibling_text": "bunker spill was taking by c e and 4 e sudden announcement bunker spill what will be action of 2nd engineer just want to listen transfer of oil from that tank to other emergency stop and everything done by 4th engineer", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Oil spill during bunkering — immediate actions as Second Engineer", "cross_family": true } ] }, { "qid": "MUM-2025-07-2330-Q002", "text": "What are cyclic stresses, what are varying load.", "family": "General Marine Engineering", "subtopic": "", "tid": "MUM-2025-07-2330", "tray": "new", "candidates": [ { "answer_id": "CPP-GRM-05", "score": 0.46684472262859344, "sibling_score": 0.42937737703323364, "answer_score": 0.46684472262859344, "sibling_qid": "KOC-2026-09-2173-Q002", "sibling_text": "static dynamic load in crankshaft", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "answer_title", "answer_title": "Static and dynamic engine loads", "cross_family": true }, { "answer_id": "CFF-P02-001", "score": 0.4545375108718872, "sibling_score": 0.4545375108718872, "answer_score": 0.3837013840675354, "sibling_qid": "MUM-2026-04-2686-Q002", "sibling_text": "fatigue is a localised structural damage when a material is subjected to cyclic loading ae con rod bolt", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Fatigue failure — what it is and where it occurs", "cross_family": true }, { "answer_id": "CFF-P02-003", "score": 0.4481924772262573, "sibling_score": 0.4481924772262573, "answer_score": 0.4300184667110443, "sibling_qid": "KOL-2026-03-2043-Q001", "sibling_text": "low cycle stress and high cycle street", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Low-cycle and high-cycle fatigue", "cross_family": true } ] }, { "qid": "MUM-2025-07-2330-Q003", "text": "Types of stresses.", "family": "General Marine Engineering", "subtopic": "", "tid": "MUM-2025-07-2330", "tray": "new", "candidates": [ { "answer_id": "LB-SDT-A-001", "score": 0.644687831401825, "sibling_score": 0.644687831401825, "answer_score": null, "sibling_qid": "MUM-2025-08-0412-Q018", "sibling_text": "static and dynamic stress", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat static and dynamic test — purpose and procedure", "cross_family": true }, { "answer_id": "BLR-DRUM-005", "score": 0.5903822183609009, "sibling_score": 0.5903822183609009, "answer_score": null, "sibling_qid": "KOL-2025-07-1813-Q006", "sibling_text": "stress along which axis and stress values", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Boiler manhole-door minor-axis orientation — longitudinal vs transverse stress", "cross_family": true }, { "answer_id": "STRSTR-298-001", "score": 0.5795224905014038, "sibling_score": 0.5795224905014038, "answer_score": 0.4969062775373459, "sibling_qid": "KOL-2025-07-0982-Q002", "sibling_text": "types of stresses in ship", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "What is stress, and what types of stress are commonly discussed in ships?", "cross_family": true } ] }, { "qid": "MUM-2025-07-2330-Q004", "text": "Where you can find, gave some hint", "family": "General Marine Engineering", "subtopic": "", "tid": "MUM-2025-07-2330", "tray": "new", "candidates": [ { "answer_id": "ALT-GEN-P03-001", "score": 0.567207932472229, "sibling_score": 0.567207932472229, "answer_score": null, "sibling_qid": "KOL-2022-10-2614-Q003", "sibling_text": "where u can find it", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Alternator/generator working principle and onboard electricity generation", "cross_family": true }, { "answer_id": "CSBR-005", "score": 0.5315061211585999, "sibling_score": 0.5315061211585999, "answer_score": null, "sibling_qid": "CHE-2025-12-0225-Q003", "sibling_text": "where it is given", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "CSBR-009 — Minimum / low-RPM running limits and precautions", "cross_family": true }, { "answer_id": "BCH-IBC-A-002", "score": 0.4880475103855133, "sibling_score": 0.4880475103855133, "answer_score": null, "sibling_qid": "CHE-2026-03-0128-Q002", "sibling_text": "where it is mentioned", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "The IBC Code — scope, purpose and application", "cross_family": true } ] }, { "qid": "MUM-2025-07-2330-Q007", "text": "NDT- types on board-procedure and X questions.", "family": "Workshop & Welding", "subtopic": "Welding / NDT / Materials", "tid": "MUM-2025-07-2330", "tray": "new", "candidates": [ { "answer_id": "NDT-METH-P01-001", "score": 0.622918426990509, "sibling_score": 0.622918426990509, "answer_score": 0.4547868549823761, "sibling_qid": "MUM-2026-03-2597-Q004", "sibling_text": "types of ndt", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "NDT methods, NDT vs destructive testing, and onboard use", "cross_family": false }, { "answer_id": "NDT-METH-P02-001", "score": 0.5990557074546814, "sibling_score": 0.5990557074546814, "answer_score": null, "sibling_qid": "MUM-2022-10-2712-Q010", "sibling_text": "type of ndt tests onboard how you will do magnetic particle test", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "1. Magnetic Particle Inspection (MPI / MPT)", "cross_family": true }, { "answer_id": "NDT-METH-P02-002", "score": 0.5882216691970825, "sibling_score": 0.5882216691970825, "answer_score": null, "sibling_qid": "KOL-2025-08-3850-Q005", "sibling_text": "four ndt test explain radiography explain ultrasonic test lots of cross question in every question", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "2. Ultrasonic Testing & Thickness Gauging", "cross_family": true } ] }, { "qid": "MUM-2025-07-2331-Q006", "text": "Asked from viscosity how u will know it is good oil, oil will come down any way so how to know it is good Some more about refer system", "family": "Refrigeration & AC", "subtopic": "Compressor / Leakage / Maintenance", "tid": "MUM-2025-07-2331", "tray": "review", "candidates": [ { "answer_id": "LO-TEST-P02-004", "score": 0.7222846746444702, "sibling_score": 0.7222846746444702, "answer_score": null, "sibling_qid": "MUM-2025-07-2332-Q003", "sibling_text": "ae lo testing specific about viscosity how exactly you will know oil is good or bad condition by seeing he want after checking by visgage after visgage flow is not matching your original oil", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Judging LO fit-for-use; changing, ordering and substituting between machinery", "cross_family": true }, { "answer_id": "REEF-COMP-003", "score": 0.6462910771369934, "sibling_score": 0.6462910771369934, "answer_score": null, "sibling_qid": "MUM-2026-09-3942-Q007", "sibling_text": "refer lube oil properties", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Refrigeration-compressor lube oil — properties, selection, and its jobs beyond lubrication", "cross_family": false }, { "answer_id": "CYL-LUB-B-002", "score": 0.6366820931434631, "sibling_score": 0.6366820931434631, "answer_score": null, "sibling_qid": "KOC-2022-07-0966-Q012", "sibling_text": "how is the viscosity index for cyl oil", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Cylinder oil — required properties; can any oil be used?", "cross_family": true } ] }, { "qid": "MUM-2025-07-2332-Q001", "text": "fatigue to many cross questions, areas more prone to fatigue", "family": "General Marine Engineering", "subtopic": "", "tid": "MUM-2025-07-2332", "tray": "review", "candidates": [ { "answer_id": "CFF-P02-001", "score": 0.659717857837677, "sibling_score": 0.659717857837677, "answer_score": null, "sibling_qid": "MUM-2024-09-2241-Q001", "sibling_text": "fatigue and where it exists and cross lots of", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Fatigue failure — what it is and where it occurs", "cross_family": true }, { "answer_id": "CFF-P02-002", "score": 0.5530279874801636, "sibling_score": 0.5530279874801636, "answer_score": null, "sibling_qid": "KOL-2021-04-3396-Q001", "sibling_text": "endurance limit cross questions", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "The S-N curve and the endurance (fatigue) limit", "cross_family": true }, { "answer_id": "SHORE-CONN-P04-001", "score": 0.5318975448608398, "sibling_score": 0.5318975448608398, "answer_score": null, "sibling_qid": "KOL-2022-02-2540-Q002", "sibling_text": "to many cross questions regarding variation in sore and ship s frequency", "sibling_family": "", "via": "sibling", "answer_title": "Accepting shore supply at a different frequency or voltage (incl. dry dock)", "cross_family": false } ] }, { "qid": "MUM-2025-07-2332-Q001S2", "text": "Function of boiler safety valves - what is the need", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2025-07-2332", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.7559987902641296, "sibling_score": 0.7559987902641296, "answer_score": null, "sibling_qid": "MUM-2026-05-3267-Q005", "sibling_text": "boiler safety valve why you required easing gear", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.7364411950111389, "sibling_score": 0.7364411950111389, "answer_score": null, "sibling_qid": "MUM-2026-05-3281-Q004", "sibling_text": "setting of boiler safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P02-008", "score": 0.7346817851066589, "sibling_score": 0.7346817851066589, "answer_score": null, "sibling_qid": "MUM-2026-05-3078-Q008", "sibling_text": "safeties on boiler", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "MUM-2025-07-2332-Q004", "text": "Refer system mostly why we are using belt drives To many cross questions, (what safety provided for flooding of crankcase)", "family": "", "subtopic": "", "tid": "MUM-2025-07-2332", "tray": "new", "candidates": [ { "answer_id": "CC-RELIEF-312-005", "score": 0.6412243247032166, "sibling_score": 0.6412243247032166, "answer_score": null, "sibling_qid": "MUM-2026-06-3502-Q003", "sibling_text": "safety on crankcase", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Safeties fitted for the crankcase", "cross_family": false }, { "answer_id": "CCE-322-004", "score": 0.6114044189453125, "sibling_score": 0.6114044189453125, "answer_score": null, "sibling_qid": "KOC-2022-02-0957-Q006", "sibling_text": "safeties against crankcase explosion and draw of relief door", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Preventive measures and safety devices", "cross_family": false }, { "answer_id": "CRD-002", "score": 0.5757338404655457, "sibling_score": 0.5757338404655457, "answer_score": null, "sibling_qid": "KOL-2023-08-1749-Q004", "sibling_text": "crankcase safety for the main engine regulation for crankcase relief door", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Regulations & criteria — applicability, area, material, arrester, opening pressure", "cross_family": false } ] }, { "qid": "MUM-2025-07-2337-Q001", "text": "what all maintenance work done you have done in engine room", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2025-07-2337", "tray": "review", "candidates": [ { "answer_id": "ERC-345-003", "score": 0.7134015560150146, "sibling_score": 0.7134015560150146, "answer_score": null, "sibling_qid": "KOL-2026-05-4244-Q001", "sibling_text": "maintenance that you have carried out in the engine room", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Pre-lift checks and maintenance", "cross_family": true }, { "answer_id": "ETP-344-P01-001", "score": 0.6903085708618164, "sibling_score": 0.6903085708618164, "answer_score": null, "sibling_qid": "MUM-2026-03-2606-Q001", "sibling_text": "type of engine and ship major maintenance done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "AUX-CRANE-003", "score": 0.6327766180038452, "sibling_score": 0.6327766180038452, "answer_score": null, "sibling_qid": "KOL-2022-09-3566-Q003", "sibling_text": "engine room overhead crane maintenance", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Routine checks, inspections, maintenance and risk-assessment of cranes, cargo gear, lifting gear and wires", "cross_family": true } ] }, { "qid": "MUM-2025-07-2337-Q004", "text": "how AC COMPRESSOR reduce the stage as per temperature and what feed back is given to compressor when TEV is operating. X questions more", "family": "Refrigeration & AC", "subtopic": "Refrigerant Handling / Expansion Valve / Compressor Control Circuit", "tid": "MUM-2025-07-2337", "tray": "review", "candidates": [ { "answer_id": "REEF-COMP-009", "score": 0.6575278639793396, "sibling_score": 0.6575278639793396, "answer_score": null, "sibling_qid": "MUM-2025-09-2834-Q004", "sibling_text": "3 ac compressor not going above stage 1", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Confirming a reefer/AC (MAC) compressor runs well on rounds — high current, sluggish, won't-load faults", "cross_family": false }, { "answer_id": "CAP-CTRL-005", "score": 0.6535421013832092, "sibling_score": 0.6535421013832092, "answer_score": 0.5309219509363174, "sibling_qid": "MUM-2024-07-2767-Q019", "sibling_text": "air conditioner ac has reached ambient temperature of the room what will happen now with the compressor", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "CG-005 · What happens as load drops or the room reaches set temperature", "cross_family": false }, { "answer_id": "CCSC-314-001", "score": 0.646476686000824, "sibling_score": 0.646476686000824, "answer_score": null, "sibling_qid": "KOC-2024-08-1001-Q008", "sibling_text": "refer compressor short cycling reasoning", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Refrigeration compressor short cycling — meaning, causes and corrective action", "cross_family": false } ] }, { "qid": "MUM-2025-07-2337-Q006", "text": "what welding of CI and what is the process of selecting the electrode", "family": "Workshop & Welding", "subtopic": "Cast Iron Welding", "tid": "MUM-2025-07-2337", "tray": "review", "candidates": [ { "answer_id": "LH-ELEC-001", "score": 0.6996493339538574, "sibling_score": 0.6996493339538574, "answer_score": null, "sibling_qid": "MUM-2026-06-3451-Q014", "sibling_text": "ci welding electrodes", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "1. Where are low-hydrogen electrodes used onboard?", "cross_family": false }, { "answer_id": "WELD-PATM-002", "score": 0.6938009858131409, "sibling_score": 0.6938009858131409, "answer_score": null, "sibling_qid": "MUM-2026-06-3494-Q010", "sibling_text": "ci welding electrode details", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Manual metal-arc – electrode and current selection", "cross_family": false }, { "answer_id": "LH-ELEC-003", "score": 0.6362138390541077, "sibling_score": 0.6362138390541077, "answer_score": 0.48246553242206575, "sibling_qid": "KOL-2020-11-1563-Q004", "sibling_text": "welding electrode selection", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "3. How do you select or order the correct welding electrode or rod?", "cross_family": false } ] }, { "qid": "MUM-2025-07-2337-Q008", "text": "Maintenance of safety valve how to do onbard and explain the procedure of gaging and what lift up pressure", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2025-07-2337", "tray": "review", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-002", "score": 0.7369951605796814, "sibling_score": 0.7369951605796814, "answer_score": null, "sibling_qid": "KOL-2026-02-3922-Q005", "sibling_text": "what is lifting of safety valve tell only within 3 percent of designated set pressure nothing else", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Acceptance limits and durations — the accumulation limit, the maximum test periods, and the action if the limit is exceeded", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.6965509057044983, "sibling_score": 0.6965509057044983, "answer_score": null, "sibling_qid": "CHE-2026-05-0583-Q002", "sibling_text": "boiler safety valve lifting pressure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ECON-EGB-004", "score": 0.6908092498779297, "sibling_score": 0.6908092498779297, "answer_score": 0.5806966960430145, "sibling_qid": "CHE-2026-05-0601-Q010", "sibling_text": "safety valve setting procedure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Safety-valve setting after overhaul & why set higher than the boiler", "cross_family": false } ] }, { "qid": "MUM-2025-07-2338-Q002", "text": "removal of rudder bearing.", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "MUM-2025-07-2338", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.8401886820793152, "sibling_score": 0.8401886820793152, "answer_score": 0.4787512570619583, "sibling_qid": "MUM-2026-06-3610-Q003", "sibling_text": "removal of rudder bearing", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "PRE-TEN-001", "score": 0.8181672692298889, "sibling_score": 0.8181672692298889, "answer_score": null, "sibling_qid": "MUM-2026-06-3504-Q007", "sibling_text": "rudder carrier bearing removal procedure", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Pre-stressing and pre-tensioning in main-engine bolting", "cross_family": false }, { "answer_id": "TRS-002", "score": 0.6798568367958069, "sibling_score": 0.6798568367958069, "answer_score": null, "sibling_qid": "KOC-2026-02-1103-Q008", "sibling_text": "how rudder stock and carrier bearing is attached told 2 half fitted bolts x does bearing turn with rudder i told yes then he told that there are 2 types one turn with rudder other dont turn with rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false } ] }, { "qid": "MUM-2025-07-2339-Q004", "text": "Heat exchanger tube leakage test", "family": "Auxiliary Equipment", "subtopic": "General Auxiliary Machinery", "tid": "MUM-2025-07-2339", "tray": "review", "candidates": [ { "answer_id": "STHX-003", "score": 0.7168267965316772, "sibling_score": 0.7168267965316772, "answer_score": 0.5691543847322463, "sibling_qid": "KOL-2025-03-3763-Q005", "sibling_text": "shell and tube type heat exchanger leak test", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "STHX-03 — Pressure and leak testing", "cross_family": true }, { "answer_id": "HYD-602-005", "score": 0.7029170989990234, "sibling_score": 0.7029170989990234, "answer_score": 0.5588874876499176, "sibling_qid": "KOL-2024-02-3671-Q002", "sibling_text": "boiler hydraulic testing how will you find tube is leaking", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "How do you find a leaking boiler tube during the test, and how do you test the shell welding?", "cross_family": true }, { "answer_id": "STHX-005", "score": 0.6957067251205444, "sibling_score": 0.6957067251205444, "answer_score": null, "sibling_qid": "KOL-2022-09-3563-Q004", "sibling_text": "shell and tube type heat exchanger tube leak detection in place how to operate the heat exchanger when tube is leaking when do you renew the tube", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "STHX-05 — Damaged-tube removal, tube renewal, retubing tools and procedure", "cross_family": true } ] }, { "qid": "MUM-2025-07-2342-Q005", "text": "Equalising line where and what type used", "family": "", "subtopic": "", "tid": "MUM-2025-07-2342", "tray": "new", "candidates": [ { "answer_id": "EQ-LINE-002", "score": 0.6015841960906982, "sibling_score": 0.6015841960906982, "answer_score": 0.30995420664548873, "sibling_qid": "MUM-2025-08-2382-Q003", "sibling_text": "equalizing line where used", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Where the equalising line is used and connected in a refrigeration plant", "cross_family": false }, { "answer_id": "GEN-LSI-B-003", "score": 0.541226863861084, "sibling_score": 0.541226863861084, "answer_score": 0.299286051094532, "sibling_qid": "KOL-2019-12-2354-Q003", "sibling_text": "equalising line", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "03. Purpose of the equalising line / equalising connection in parallel operation", "cross_family": false }, { "answer_id": "EQ-LINE-001", "score": 0.48525553941726685, "sibling_score": 0.48525553941726685, "answer_score": null, "sibling_qid": "MUM-2025-09-1196-Q008", "sibling_text": "what is the purpose of equalizing line", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Purpose and function of the equalising line / equalising valve in refrigeration service", "cross_family": false } ] }, { "qid": "MUM-2025-07-2343-Q002", "text": "Main engine Tie rod loose and tightening procedure ?", "family": "2-Stroke - Structure & Tie Rods", "subtopic": "Tie Rod Function / Tightening / Removal", "tid": "MUM-2025-07-2343", "tray": "review", "candidates": [ { "answer_id": "MAIN-BRG-D-006", "score": 0.7724547386169434, "sibling_score": 0.7724547386169434, "answer_score": null, "sibling_qid": "KOL-2023-08-3631-Q002", "sibling_text": "main engine tie rod loose and tightening procedure", "sibling_family": "2-Stroke - 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Annex IV (Sewage)", "subtopic": "", "tid": "MUM-2025-07-2343", "tray": "review", "candidates": [ { "answer_id": "STP-SEW-006", "score": 0.8532896637916565, "sibling_score": 0.8532896637916565, "answer_score": null, "sibling_qid": "KOL-2023-08-3631-Q003", "sibling_text": "sewage plant maintenance in drydock how to start plant after drydock", "sibling_family": "MARPOL - Annex IV (Sewage)", "via": "sibling", "answer_title": "Routine checks, maintenance and starting after overhaul", "cross_family": false }, { "answer_id": "BOT-PLUG-001", "score": 0.5984006524085999, "sibling_score": 0.5984006524085999, "answer_score": null, "sibling_qid": "MUM-2024-09-0209-Q004", "sibling_text": "checks in drain plugs after completion of dry dock", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "How do you check the watertight integrity of a DB tank bottom plug in dry dock?", "cross_family": true }, { "answer_id": "DUS-P1-01", "score": 0.5846902132034302, "sibling_score": 0.5846902132034302, "answer_score": null, "sibling_qid": "KOL-2021-12-3501-Q001", "sibling_text": "drydock preparation first thing to check as 2e after docking is complete like an hour round", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Drydock preparation as 2E — full workflow from office confirmation to entry", "cross_family": true } ] }, { "qid": "MUM-2025-07-2343-Q004", "text": "Main engine injector stuck how to remove", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Injector", "tid": "MUM-2025-07-2343", "tray": "review", "candidates": [ { "answer_id": "FINJ-004", "score": 0.8355732560157776, "sibling_score": 0.8355732560157776, "answer_score": 0.6000145554542541, "sibling_qid": "KOL-2024-08-3704-Q002", "sibling_text": "main engine injector stuck how to remove", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel injector stuck or seized — removal procedure and precautions", "cross_family": false }, { "answer_id": "FLGLS-002", "score": 0.6502704620361328, "sibling_score": 0.6502704620361328, "answer_score": 0.48218429684638975, "sibling_qid": "KOL-2024-10-3720-Q002", "sibling_text": "how to purge high pressure pipe and fuel injector in main engine", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Purging a HP fuel line / injector and confirming all air is removed", "cross_family": false }, { "answer_id": "COS343-002", "score": 0.49844651222229003, "sibling_score": null, "answer_score": 0.49844651222229003, "sibling_qid": "", "sibling_text": "how do you cut off cut out one main engine fuel pump unit positive method lift the cam follower roller clear of the fuel cam and positively lock it plunger gets no stroke zero delivery whatever the index reads man b w mc turn engine so the roller sits on the cam base circle then engage the roller guide lifting locking device", "sibling_family": "", "via": "answer_title", "answer_title": "How do you cut off / cut out one main-engine fuel pump (unit)?", "cross_family": false } ] }, { "qid": "MUM-2025-07-2343-Q006", "text": "Nitriding", "family": "Workshop & Welding", "subtopic": "Welding / NDT / Heat Treatment", "tid": "MUM-2025-07-2343", "tray": "review", "candidates": [ { "answer_id": "HEAT-TRT-C-001", "score": 0.7548301219940186, "sibling_score": 0.7548301219940186, "answer_score": 0.5550900220870971, "sibling_qid": "MUM-2026-05-3206-Q010", "sibling_text": "what is nitriding components on which nitriding carried out", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Nitriding — process, gas and where it is used on board", "cross_family": false }, { "answer_id": "HEAT-TRT-C-002", "score": 0.4282915353775024, "sibling_score": null, "answer_score": 0.4282915353775024, "sibling_qid": "", "sibling_text": "induction hardening and flame hardening principle and use both heat the surface above the upper critical austenitising temperature then quench the opposite of nitriding induction high frequency ac in a coil induces eddy currents the steel s own resistance heats the surface in seconds", "sibling_family": "", "via": "answer_title", "answer_title": "Induction hardening and flame hardening — principle and use", "cross_family": false }, { "answer_id": "COAT-543-004", "score": 0.3646568566560745, "sibling_score": null, "answer_score": 0.3646568566560745, "sibling_qid": "", "sibling_text": "stellite and nickel coatings process and purpose stellite cobalt based hardfacing alloy co cr w with carbon forming hard carbides stellite is a trade family name key property retains hardness and wear galling resistance when hot red hardness resists v na hot corrosion", "sibling_family": "", "via": "answer_title", "answer_title": "Stellite and nickel coatings — process and purpose", "cross_family": false } ] }, { "qid": "MUM-2025-07-2343-Q007", "text": "Synthetic oil and properties", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "", "tid": "MUM-2025-07-2343", "tray": "review", "candidates": [ { "answer_id": "SYN-LUBE-002", "score": 0.7048324346542358, "sibling_score": 0.7048324346542358, "answer_score": 0.5167611747980118, "sibling_qid": "KOL-2023-08-3631-Q007", "sibling_text": "synthetic oil and properties external", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "SL-002 – Composition, properties, and advantages over mineral oil", "cross_family": true }, { "answer_id": "LO-TEST-P01-005", "score": 0.6597709655761719, "sibling_score": 0.6597709655761719, "answer_score": 0.479918909072876, "sibling_qid": "KOL-2023-08-1750-Q003", "sibling_text": "examples of synthetic oils", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Lube-oil properties, types and selection by duty", "cross_family": true }, { "answer_id": "SYN-LUBE-001", "score": 0.6587573885917664, "sibling_score": 0.6587573885917664, "answer_score": 0.5521682322025299, "sibling_qid": "MUM-2026-04-1319-Q004", "sibling_text": "what is synthetic oil", "sibling_family": "2-Stroke - 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Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.7361060976982117, "sibling_score": 0.7361060976982117, "answer_score": null, "sibling_qid": "KOC-2026-09-2205-Q019", "sibling_text": "setting safety valve infront of surveyor", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false } ] }, { "qid": "MUM-2025-07-2344-Q004", "text": "✓What major jobs were done by you on generator", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-07-2344", "tray": "new", "candidates": [ { "answer_id": "ISM-2E-A-004", "score": 0.4308820068836212, "sibling_score": 0.4308820068836212, "answer_score": null, "sibling_qid": "KOC-2022-07-0966-Q018", "sibling_text": "major jobs carried out", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Shipboard jobs, machineries and maintenance areas under the Second Engineer", "cross_family": true }, { "answer_id": "DCB-OVH-008", "score": 0.4301389753818512, "sibling_score": 0.4301389753818512, "answer_score": 0.2840208262205124, "sibling_qid": "KOC-2025-10-1946-Q012", "sibling_text": "major jobs carried out", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Major ME / AE overhaul jobs carried out onboard", "cross_family": true }, { "answer_id": "AEDEC-291-003", "score": 0.4290885329246521, "sibling_score": 0.4290885329246521, "answer_score": null, "sibling_qid": "KOL-2017-08-1316-Q009", "sibling_text": "after overhaul of generator wat all checks we do before starting generator", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "3. Pre-start checks after decarb / recommissioning", "cross_family": true } ] }, { "qid": "MUM-2025-07-2344-Q009", "text": "What is nitriding", "family": "Workshop & Welding", "subtopic": "Welding / NDT / Heat Treatment", "tid": "MUM-2025-07-2344", "tray": "review", "candidates": [ { "answer_id": "HEAT-TRT-C-001", "score": 0.7193147540092468, "sibling_score": 0.7193147540092468, "answer_score": 0.5358117818832397, "sibling_qid": "MUM-2026-05-3206-Q010", "sibling_text": "what is nitriding components on which nitriding carried out", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Nitriding — process, gas and where it is used on board", "cross_family": false }, { "answer_id": "HEAT-TRT-C-002", "score": 0.43825156092643736, "sibling_score": null, "answer_score": 0.43825156092643736, "sibling_qid": "", "sibling_text": "induction hardening and flame hardening principle and use both heat the surface above the upper critical austenitising temperature then quench the opposite of nitriding induction high frequency ac in a coil induces eddy currents the steel s own resistance heats the surface in seconds", "sibling_family": "", "via": "answer_title", "answer_title": "Induction hardening and flame hardening — principle and use", "cross_family": false }, { "answer_id": "COAT-543-004", "score": 0.3565266102552414, "sibling_score": null, "answer_score": 0.3565266102552414, "sibling_qid": "", "sibling_text": "stellite and nickel coatings process and purpose stellite cobalt based hardfacing alloy co cr w with carbon forming hard carbides stellite is a trade family name key property retains hardness and wear galling resistance when hot red hardness resists v na hot corrosion", "sibling_family": "", "via": "answer_title", "answer_title": "Stellite and nickel coatings — process and purpose", "cross_family": false } ] }, { "qid": "MUM-2025-07-2344-Q010", "text": "Which components undergo nitriding", "family": "Workshop & Welding", "subtopic": "Welding / NDT / Heat Treatment", "tid": "MUM-2025-07-2344", "tray": "review", "candidates": [ { "answer_id": "HEAT-TRT-C-001", "score": 0.7470722198486328, "sibling_score": 0.7470722198486328, "answer_score": 0.5006920397281647, "sibling_qid": "MUM-2026-05-3206-Q010", "sibling_text": "what is nitriding components on which nitriding carried out", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Nitriding — process, gas and where it is used on board", "cross_family": false }, { "answer_id": "HEAT-TRT-C-002", "score": 0.37736935317516324, "sibling_score": null, "answer_score": 0.37736935317516324, "sibling_qid": "", "sibling_text": "induction hardening and flame hardening principle and use both heat the surface above the upper critical austenitising temperature then quench the opposite of nitriding induction high frequency ac in a coil induces eddy currents the steel s own resistance heats the surface in seconds", "sibling_family": "", "via": "answer_title", "answer_title": "Induction hardening and flame hardening — principle and use", "cross_family": false }, { "answer_id": "TURBO-CS-P03-005", "score": 0.35737287551164626, "sibling_score": null, "answer_score": 0.35737287551164626, "sibling_qid": "", "sibling_text": "turbine blade and rotor materials turbine blade nickel based superalloy nimonic inconel family creep hot corrosion and oxidation resistance turbine disc shaft high strength heat resisting alloy steel", "sibling_family": "", "via": "answer_title", "answer_title": "Turbine blade and rotor materials", "cross_family": false } ] }, { "qid": "MUM-2025-07-2344-Q011", "text": "Then he told passing you in function 6", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-07-2344", "tray": "new", "candidates": [ { "answer_id": "SPR-STERN-002", "score": 0.48213833570480347, "sibling_score": 0.48213833570480347, "answer_score": null, "sibling_qid": "KOL-2018-02-1354-Q011", "sibling_text": "propeller draw i cudnt understand wat he wanted to know didn t answer got function 6", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Propeller draw & dry-dock blade repair", "cross_family": true }, { "answer_id": "BFS-257-010", "score": 0.4539960026741028, "sibling_score": 0.4539960026741028, "answer_score": null, "sibling_qid": "MUM-2025-05-0277-Q022", "sibling_text": "how to confirm if it s done properly got function 6", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "How to confirm soot blowing has been carried out effectively", "cross_family": true }, { "answer_id": "IMO-CODES-P03-002", "score": 0.43302154541015625, "sibling_score": 0.43302154541015625, "answer_score": null, "sibling_qid": "MUM-2026-03-0815-Q003", "sibling_text": "which function", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": false } ] }, { "qid": "MUM-2025-07-2344-Q012", "text": "4b repeat", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-07-2344", "tray": "new", "candidates": [ { "answer_id": "CHAIN-TENS-A-003", "score": 0.519681990146637, "sibling_score": 0.519681990146637, "answer_score": null, "sibling_qid": "MUM-2026-02-2546-Q006", "sibling_text": "6 repeat", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "Chain Tightening Procedure — MC / MC-C / ME", "cross_family": false }, { "answer_id": "CBV-001", "score": 0.5003458261489868, "sibling_score": 0.5003458261489868, "answer_score": null, "sibling_qid": "MUM-2025-12-2517-Q005", "sibling_text": "counter balance valve 4b pass 6 repeat", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "What is a counter-balance valve, why fitted, and why needed even with a directional-control valve?", "cross_family": true }, { "answer_id": "REEF-COMP-005", "score": 0.4684232175350189, "sibling_score": 0.4684232175350189, "answer_score": null, "sibling_qid": "KOC-2025-12-1983-Q004", "sibling_text": "reffer compressor why belt driven 4b pass 6 repeat", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "V-belt drive on reefer compressors — why, and checking condition, alignment, tension, replacement", "cross_family": true } ] }, { "qid": "MUM-2025-07-2344-Q013", "text": "I gave all the answers except that variable displacement motor question maybe they were not in good mood", "family": "", "subtopic": "", "tid": "MUM-2025-07-2344", "tray": "new", "candidates": [ { "answer_id": "HSAP-583-A-008", "score": 0.6226464509963989, "sibling_score": 0.6226464509963989, "answer_score": null, "sibling_qid": "MUM-2023-06-2734-Q012", "sibling_text": "said swash plate pump at main engin variable displacement motor don t know", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Axial piston / swash plate pump: construction and working", "cross_family": false }, { "answer_id": "VDP-002", "score": 0.6213299632072449, "sibling_score": 0.6213299632072449, "answer_score": 0.47323359847068786, "sibling_qid": "KOL-2023-11-1765-Q003", "sibling_text": "variable delivery motor where it use and it s purpose cross questions", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Variable displacement pump and motor — use, purpose and operation", "cross_family": false }, { "answer_id": "VIB-BAL-B-003", "score": 0.604332447052002, "sibling_score": 0.604332447052002, "answer_score": null, "sibling_qid": "MUM-2023-01-2159-Q002", "sibling_text": "now he asked me have you worked on electronic engines i said no then he asked my engine specifications firing order how does manufacturer decides the firing order wanted to hear about torsional vibrations x quest wht arrangements in engine to deal with such vibrations", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Torsional vibration: what it is, what causes it, how it is controlled", "cross_family": false } ] }, { "qid": "MUM-2025-07-2345-Q004", "text": "+ Types of NDT", "family": "Workshop & Welding", "subtopic": "Welding / NDT / Heat Treatment", "tid": "MUM-2025-07-2345", "tray": "review", "candidates": [ { "answer_id": "NDT-METH-P01-001", "score": 0.727229118347168, "sibling_score": 0.727229118347168, "answer_score": 0.4752923786640167, "sibling_qid": "MUM-2026-03-2597-Q004", "sibling_text": "types of ndt", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "NDT methods, NDT vs destructive testing, and onboard use", "cross_family": false }, { "answer_id": "NDT-METH-P02-001", "score": 0.6403884887695312, "sibling_score": 0.6403884887695312, "answer_score": null, "sibling_qid": "KOL-2023-12-3661-Q002", "sibling_text": "types of ndt explain mpt", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "1. Magnetic Particle Inspection (MPI / MPT)", "cross_family": true }, { "answer_id": "NDT-METH-P01-002", "score": 0.5943806171417236, "sibling_score": 0.5943806171417236, "answer_score": null, "sibling_qid": "CHE-2025-07-0404-Q004", "sibling_text": "explain ndt explain dpt", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Dye penetrant test (DPT): principle, procedure, penetrant/developer properties, safety", "cross_family": true } ] }, { "qid": "MUM-2025-07-2811-Q002", "text": "Loadline preparations as a 2E( he stopped me in between when I was telling about checks in engine room, asked me what you will check in bunker tank.. wants to hear about vents)", "family": "", "subtopic": "", "tid": "MUM-2025-07-2811", "tray": "review", "candidates": [ { "answer_id": "LLC-SURV-P01-001", "score": 0.7267098426818848, "sibling_score": 0.7267098426818848, "answer_score": 0.5645908802747727, "sibling_qid": "KOL-2025-05-0946-Q004", "sibling_text": "checks as 2nd engineer for load line survey wanted to listen about e r tanks vent head safety arrangements", "sibling_family": "", "via": "sibling", "answer_title": "Load line survey preparation as Second Engineer: engine-room scope, machinery openings, tanks/vents, valves and overboard checks", "cross_family": false }, { "answer_id": "BUNK-PLAN-001", "score": 0.6738654375076294, "sibling_score": 0.6738654375076294, "answer_score": null, "sibling_qid": "KOL-2022-08-0671-Q002", "sibling_text": "during bunkering operation as 2nd engineer whall all checks he don t want to listen sounding temperature rate just want to listen leakage any pipeline scuppers and communication with bridge ecr manifold ccr acknowledge with ce", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Second Engineer's duties, preparation and checks for bunkering", "cross_family": false }, { "answer_id": "LL-CONV-P06-001", "score": 0.6590003967285156, "sibling_score": 0.6590003967285156, "answer_score": null, "sibling_qid": "KOL-2019-07-3967-Q002", "sibling_text": "loadline survey preparation full detail he want to listen mainly corrosion at weld for all opening and engine room openings prep mine is tanker so especially he said in tanker you should check function of one main thing i said pv valve then he said to draw how pv valve is connected to deck i made diagram he want to see mainlt stub piece corrosion while pv valve pipe pass through deck", "sibling_family": "", "via": "sibling", "answer_title": "LLC-P06-01 - Ship categories and freeboard differences: Type A, Type B and practical ship cases", "cross_family": false } ] }, { "qid": "MUM-2025-07-2811-Q003", "text": "IMO structure", "family": "Other Conventions", "subtopic": "UNCLOS", "tid": "MUM-2025-07-2811", "tray": "review", "candidates": [ { "answer_id": "IMO-CC-P01-001", "score": 0.7823330163955688, "sibling_score": 0.7823330163955688, "answer_score": 0.3909383237361908, "sibling_qid": "MUM-2026-03-0826-Q006", "sibling_text": "imo structure", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Explain the structure and organs of IMO — Assembly, Council, Committees and Secretariat.", "cross_family": false }, { "answer_id": "IMO-5PIL-001", "score": 0.7316306233406067, "sibling_score": 0.7316306233406067, "answer_score": 0.39054752737283704, "sibling_qid": "MUM-2025-11-0571-Q001", "sibling_text": "imo structure", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Structure of IMO — the main organs", "cross_family": true }, { "answer_id": "IMO-CODES-P03-002", "score": 0.43110378980636593, "sibling_score": null, "answer_score": 0.43110378980636593, "sibling_qid": "", "sibling_text": "imo overview structure committees certificates imsas ui and carbon strategy", "sibling_family": "", "via": "answer_title", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": false } ] }, { "qid": "MUM-2025-07-2811-Q004", "text": "Detainable deficiency as per MLC 2006 Only 4 questions", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2025-07-2811", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-007", "score": 0.6591172814369202, "sibling_score": 0.6591172814369202, "answer_score": 0.379125314950943, "sibling_qid": "MUM-2026-02-1260-Q001", "sibling_text": "1 detainable deficiency as per mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false }, { "answer_id": "IGC-GAS-005", "score": 0.5447536110877991, "sibling_score": 0.5447536110877991, "answer_score": null, "sibling_qid": "KOC-2025-01-0530-Q006", "sibling_text": "detainable deficiency under igc code internal no questions", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Detainable deficiencies under the IGC Code (port State control)", "cross_family": true }, { "answer_id": "DCG-002", "score": 0.5222575664520264, "sibling_score": 0.5222575664520264, "answer_score": 0.3603545755147934, "sibling_qid": "KOL-2025-04-0931-Q013", "sibling_text": "example for detainable deficiency", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What are the reasons for PSC detention and what is a detainable deficiency? Which engine-room deficiencies can detain your ship, which conventions can ground a detainable deficiency, and what is banning by PSC?", "cross_family": true } ] }, { "qid": "MUM-2025-07-2813-Q002", "text": "Type of ship - me engine", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "MUM-2025-07-2813", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.6643961668014526, "sibling_score": 0.6643961668014526, "answer_score": null, "sibling_qid": "MUM-2025-08-2357-Q001", "sibling_text": "type of ship type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.6377330422401428, "sibling_score": 0.6377330422401428, "answer_score": null, "sibling_qid": "MUM-2026-07-3668-Q004", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.4041766613721847, "sibling_score": null, "answer_score": 0.4041766613721847, "sibling_qid": "", "sibling_text": "type a and type b ships how form and cargo set the freeboard", "sibling_family": "", "via": "answer_title", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "MUM-2025-07-2813-Q003", "text": "Reversing in me engine ?", "family": "2-Stroke - Reversing & Maneuvering", "subtopic": "Reversing - ME/MC/Sulzer", "tid": "MUM-2025-07-2813", "tray": "review", "candidates": [ { "answer_id": "REV-PROC-002", "score": 0.7933595776557922, "sibling_score": 0.7933595776557922, "answer_score": 0.46104491651058194, "sibling_qid": "MUM-2026-08-3854-Q003", "sibling_text": "reversing in me engine", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Reversing in MAN B&W MC / MC-C / ME-C / ME-B engines", "cross_family": false }, { "answer_id": "REV-PROC-001", "score": 0.7381483912467957, "sibling_score": 0.7381483912467957, "answer_score": 0.4545609444379806, "sibling_qid": "KOC-2022-07-0971-Q002", "sibling_text": "m e engine reversing", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Reversing a reversible two-stroke main engine — the principle", "cross_family": false }, { "answer_id": "RSTA-563-006", "score": 0.48567129373550416, "sibling_score": null, "answer_score": 0.48567129373550416, "sibling_qid": "", "sibling_text": "on an me c engine what commands the astern direction during reversing me c has no camshaft no mechanical reversing gear no engine driven starting air distributor astern is commanded electronically telegraph lever to astern the control system sets astern mode and the cylinder units execute it", "sibling_family": "", "via": "answer_title", "answer_title": "On an ME-C engine, what commands the astern direction during reversing?", "cross_family": false } ] }, { "qid": "MUM-2025-07-2813-Q006", "text": "Beta ratio ?", "family": "NDT & Material Testing", "subtopic": "Oil / Fuel Test", "tid": "MUM-2025-07-2813", "tray": "review", "candidates": [ { "answer_id": "LOF-359-001", "score": 0.7523792386054993, "sibling_score": 0.7523792386054993, "answer_score": 0.5015943139791489, "sibling_qid": "MUM-2026-02-2928-Q012", "sibling_text": "beta ratio", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Beta Ratio / Beta Efficiency", "cross_family": false }, { "answer_id": "CTRL-TL-004", "score": 0.366595259308815, "sibling_score": null, "answer_score": 0.366595259308815, "sibling_qid": "", "sibling_text": "ratio control and where it is used on board ratio control hold flow b as a fixed multiple of measured flow a wild flow measured but not controlled controlled flow manipulated to keep the ratio", "sibling_family": "", "via": "answer_title", "answer_title": "Ratio control and where it is used on board", "cross_family": false }, { "answer_id": "SPR-STERN-003", "score": 0.31925598084926604, "sibling_score": null, "answer_score": 0.31925598084926604, "sibling_qid": "", "sibling_text": "propeller pitch pitch ratio and how it s measured", "sibling_family": "", "via": "answer_title", "answer_title": "Propeller pitch & pitch ratio, and how it's measured", "cross_family": false } ] }, { "qid": "MUM-2025-07-2813-Q012", "text": "As a second engineer how will you guide your fourth engineer for purifier , operation and manual desludge ?", "family": "Purifier & Centrifuges", "subtopic": "Desludging", "tid": "MUM-2025-07-2813", "tray": "review", "candidates": [ { "answer_id": "PUR-DSL-001", "score": 0.7846106886863708, "sibling_score": 0.7846106886863708, "answer_score": 0.5494121134281158, "sibling_qid": "MUM-2026-04-2985-Q006", "sibling_text": "how you will show a first time 4th engineer to desludge purifier step by step", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Manual desludging of a purifier — the step-by-step procedure", "cross_family": false }, { "answer_id": "PURIF-BOWL-P02-001", "score": 0.68996262550354, "sibling_score": 0.68996262550354, "answer_score": null, "sibling_qid": "CHE-2023-11-0393-Q005", "sibling_text": "how will you instruct new 4e to do manual desludging of hfo purifier when automation is not working", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Bowl opening, closing & manual desludging — mechanism, manual operation, failure causes", "cross_family": false }, { "answer_id": "PUR-BOWL-P03-FINAL-1-003", "score": 0.663310170173645, "sibling_score": 0.663310170173645, "answer_score": null, "sibling_qid": "CHE-2026-02-0481-Q006", "sibling_text": "purifier overflowing after overhaul check as a second engineer do", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "3. Overflow, Oil-Over-Water and Sludge Carry-Over — Causes, Checks and After-Overhaul Action", "cross_family": false } ] }, { "qid": "MUM-2025-07-2814-Q003", "text": "what is naturally aspirated engine?", "family": "General Marine Engineering", "subtopic": "", "tid": "MUM-2025-07-2814", "tray": "new", "candidates": [ { "answer_id": "SCAV-323-P02-002", "score": 0.5350186228752136, "sibling_score": 0.5350186228752136, "answer_score": null, "sibling_qid": "CHE-2026-04-0506-Q006", "sibling_text": "under piston scavenging advantage", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Types of scavenging and the under-piston space", "cross_family": true }, { "answer_id": "MEB-MEC-P03-002", "score": 0.5134755969047546, "sibling_score": 0.5134755969047546, "answer_score": null, "sibling_qid": "KOC-2022-01-0949-Q005", "sibling_text": "camless engine inputs", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "ME camless control architecture — ECS, CCU, EICU, MPC", "cross_family": true }, { "answer_id": "CPP-SGX-04", "score": 0.5049768090248108, "sibling_score": 0.5049768090248108, "answer_score": null, "sibling_qid": "KOL-2021-08-1620-Q004", "sibling_text": "tuned exhaust system in engine i dont know anything about this but something related to scavanging and exhausting", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Tuned exhaust system", "cross_family": true } ] }, { "qid": "MUM-2025-07-2814-Q004", "text": "where you find in ship ?", "family": "General Marine Engineering", "subtopic": "", "tid": "MUM-2025-07-2814", "tray": "review", "candidates": [ { "answer_id": "EXD-EXI-A-002", "score": 0.6673412919044495, "sibling_score": 0.6673412919044495, "answer_score": null, "sibling_qid": "KOC-2022-03-1174-Q006", "sibling_text": "exd explain where found in ship", "sibling_family": "", "via": "sibling", "answer_title": "Ex d (flameproof / explosion-proof) — construction, shipboard applications and maintenance", "cross_family": false }, { "answer_id": "TPL-SENS-B-004", "score": 0.6513797044754028, "sibling_score": 0.6513797044754028, "answer_score": null, "sibling_qid": "KOL-2021-09-2490-Q002", "sibling_text": "where it is fitted in ship", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Shipboard T/P/L instrumentation — principles & the remote-indication chain", "cross_family": true }, { "answer_id": "KGF-A-004", "score": 0.6340965628623962, "sibling_score": 0.6340965628623962, "answer_score": null, "sibling_qid": "KOC-2024-08-0400-Q002", "sibling_text": "mid ship section of your last ship", "sibling_family": "", "via": "sibling", "answer_title": "Hull / midship cross-section: draw & identify", "cross_family": false } ] }, { "qid": "MUM-2025-07-2814-Q005", "text": "working of such engine?", "family": "General Marine Engineering", "subtopic": "", "tid": "MUM-2025-07-2814", "tray": "new", "candidates": [ { "answer_id": "MIP-264-003", "score": 0.5742250680923462, "sibling_score": 0.5742250680923462, "answer_score": null, "sibling_qid": "KOL-2021-12-1651-Q007", "sibling_text": "engine how", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Calculate engine power: IHP and BHP, and where each is measured", "cross_family": true }, { "answer_id": "MEB-MEC-P03-002", "score": 0.5625821352005005, "sibling_score": 0.5625821352005005, "answer_score": null, "sibling_qid": "MUM-2023-07-1051-Q002", "sibling_text": "how me engine works", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "ME camless control architecture — ECS, CCU, EICU, MPC", "cross_family": true }, { "answer_id": "RSTA-563-001", "score": 0.561557412147522, "sibling_score": 0.561557412147522, "answer_score": null, "sibling_qid": "KOL-2019-07-3261-Q006", "sibling_text": "running of main engine step by step process", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What happens, step by step, when the start / air-run signal is given?", "cross_family": true } ] }, { "qid": "MUM-2025-07-2814-Q006", "text": "Working principle of such engine.", "family": "General Marine Engineering", "subtopic": "", "tid": "MUM-2025-07-2814", "tray": "new", "candidates": [ { "answer_id": "MEB-MEC-P03-002", "score": 0.5895470380783081, "sibling_score": 0.5895470380783081, "answer_score": null, "sibling_qid": "MUM-2023-07-1051-Q002", "sibling_text": "how me engine works", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "ME camless control architecture — ECS, CCU, EICU, MPC", "cross_family": true }, { "answer_id": "MIP-264-003", "score": 0.5742827653884888, "sibling_score": 0.5742827653884888, "answer_score": null, "sibling_qid": "KOL-2021-12-1651-Q007", "sibling_text": "engine how", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Calculate engine power: IHP and BHP, and where each is measured", "cross_family": true }, { "answer_id": "OMD-003", "score": 0.5651260614395142, "sibling_score": 0.5651260614395142, "answer_score": null, "sibling_qid": "KOC-2025-12-1078-Q006", "sibling_text": "working principle", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Explain the OMD working principle, its types and their differences, the electrical side, and zero setting and calibration.", "cross_family": true } ] }, { "qid": "MUM-2025-07-2814-Q007", "text": "while blow thro water coming out from indicator cock aux engine reason?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE Hot / Blow Past", "tid": "MUM-2025-07-2814", "tray": "review", "candidates": [ { "answer_id": "SEA-CHEST-006", "score": 0.7419707179069519, "sibling_score": 0.7419707179069519, "answer_score": null, "sibling_qid": "MUM-2026-01-2527-Q004", "sibling_text": "ae water coming out from all indicator cocks what action", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "2/E actions: leak, crack, fouling, stuck valve, valve-life", "cross_family": false }, { "answer_id": "SAV-003", "score": 0.6495674848556519, "sibling_score": 0.6495674848556519, "answer_score": null, "sibling_qid": "MUM-2026-02-2546-Q004", "sibling_text": "ae starting time water is coming from indicator cockw while blow through what action as 2e", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Action when a unit starting air valve leaks or the line goes red hot in manoeuvring", "cross_family": true }, { "answer_id": "AEFP-471-009", "score": 0.6271932125091553, "sibling_score": 0.6271932125091553, "answer_score": null, "sibling_qid": "KOL-2025-10-3861-Q003", "sibling_text": "aux engine fuel pump overhaul fuel pump hp pipe in aux engine purging answered", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "How is AE fuel-pump overhaul associated with fuel-pump and HP-pipe purging?", "cross_family": false } ] }, { "qid": "MUM-2025-07-2814-Q009", "text": "which one you mount the pump or motor", "family": "", "subtopic": "", "tid": "MUM-2025-07-2814", "tray": "new", "candidates": [ { "answer_id": "PAL-620-001", "score": 0.6379348635673523, "sibling_score": 0.6379348635673523, "answer_score": null, "sibling_qid": "MUM-2026-03-2597-Q006", "sibling_text": "alignment of pump and motor", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "How do you check and set the alignment between a pump and its motor? Horizontal centrifugal pump — where the dial gauge goes and what values apply.", "cross_family": false }, { "answer_id": "PAL-620-002", "score": 0.5982305407524109, "sibling_score": 0.5982305407524109, "answer_score": 0.44654464125633236, "sibling_qid": "MUM-2025-11-2478-Q001", "sibling_text": "pump motor alignment after pump overhaul", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "How do you align and refit a pump and motor set after an overhaul, and what checks apply? The pump vibrates after overhaul — reasons and actions.", "cross_family": false }, { "answer_id": "STARTER-DEC-B-001", "score": 0.5720231533050537, "sibling_score": 0.5720231533050537, "answer_score": null, "sibling_qid": "KOC-2025-02-1495-Q008", "sibling_text": "sw pump which starter is used and on what basis motor starters are decided on", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Selecting the right starter for a motor", "cross_family": false } ] }, { "qid": "MUM-2025-07-2815-Q002", "text": "type of ship,engine nomenclature ,status of written exam waiting for result", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "MUM-2025-07-2815", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.7479536533355713, "sibling_score": 0.7479536533355713, "answer_score": null, "sibling_qid": "MUM-2026-01-2903-Q002", "sibling_text": "type of engine sailed on written exam conditions", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.7253018617630005, "sibling_score": 0.7253018617630005, "answer_score": null, "sibling_qid": "CHE-2026-01-0101-Q001", "sibling_text": "types of ship done and exam status", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "AC-VE-001", "score": 0.6861803531646729, "sibling_score": 0.6861803531646729, "answer_score": null, "sibling_qid": "MUM-2026-01-2904-Q001", "sibling_text": "what type of ship engine power and nomenclature", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Volumetric efficiency: define it, and if it drops how do you improve it (with bumping clearance)?", "cross_family": false } ] }, { "qid": "MUM-2025-07-2816-Q001", "text": "Attempt 1 motor mep", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-07-2816", "tray": "new", "candidates": [ { "answer_id": "MIP-264-007", "score": 0.49040186405181885, "sibling_score": 0.49040186405181885, "answer_score": 0.3838075250387192, "sibling_qid": "KOL-2022-06-1691-Q001", "sibling_text": "6 motor mep", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Fragmentary 'Motor & MEP' prompt (declared interpretation)", "cross_family": true }, { "answer_id": "LH-ELEC-002", "score": 0.47629302740097046, "sibling_score": 0.47629302740097046, "answer_score": null, "sibling_qid": "MUM-2022-11-2717-Q016", "sibling_text": "why to use low hydrogen electrodes got motor failed in mep", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "2. Why are low-hydrogen electrodes used, and what hydrogen defect do they prevent?", "cross_family": true }, { "answer_id": "IND-MOT-A-001", "score": 0.46093329787254333, "sibling_score": 0.46093329787254333, "answer_score": null, "sibling_qid": "MUM-2023-01-1375-Q001", "sibling_text": "1 induction motor working", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "1. Working principle of a three-phase induction motor", "cross_family": true } ] }, { "qid": "MUM-2025-07-2816-Q002", "text": "Status of written", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-07-2816", "tray": "new", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.6474674344062805, "sibling_score": 0.6474674344062805, "answer_score": null, "sibling_qid": "MUM-2026-03-1294-Q001", "sibling_text": "status of writtens and orals", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.5112338662147522, "sibling_score": 0.5112338662147522, "answer_score": null, "sibling_qid": "KOC-2026-08-2106-Q001", "sibling_text": "status of written oral company type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": true }, { "answer_id": "FLAG-ST-001", "score": 0.48646998405456543, "sibling_score": 0.48646998405456543, "answer_score": null, "sibling_qid": "MUM-2025-11-0607-Q004", "sibling_text": "flag state", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Flag State — authority, role, duties and requirements", "cross_family": true } ] }, { "qid": "MUM-2025-07-2816-Q003", "text": "Type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-07-2816", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8362272381782532, "sibling_score": 0.8362272381782532, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.801531970500946, "sibling_score": 0.801531970500946, "answer_score": 0.5472018480300903, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8003027439117432, "sibling_score": 0.8003027439117432, "answer_score": 0.5214664876461029, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2025-07-2816-Q007", "text": "What is FAME ?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Quality / CCAI", "tid": "MUM-2025-07-2816", "tray": "new", "candidates": [ { "answer_id": "BIO-FUEL-005", "score": 0.6071915030479431, "sibling_score": 0.6071915030479431, "answer_score": 0.2214621990919113, "sibling_qid": "MUM-2026-01-0674-Q008", "sibling_text": "what is fame", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Biofuel and FAME as marine fuel", "cross_family": false }, { "answer_id": "FQCC-583-A-004", "score": 0.606863796710968, "sibling_score": 0.606863796710968, "answer_score": 0.28887521773576735, "sibling_qid": "MUM-2026-06-3392-Q001", "sibling_text": "what is fame", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "FAME — what it is, why it is blended, and the limits", "cross_family": false }, { "answer_id": "EFBF-330-004", "score": 0.6066566109657288, "sibling_score": 0.6066566109657288, "answer_score": 0.29711441695690155, "sibling_qid": "MUM-2026-07-3684-Q003", "sibling_text": "what is fame", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "What is FAME?", "cross_family": false } ] }, { "qid": "MUM-2025-07-2816-Q010", "text": "Difference between ball bearings and roller bearings", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Bearing Clearance", "tid": "MUM-2025-07-2816", "tray": "review", "candidates": [ { "answer_id": "BRG-NOM-002", "score": 0.7814313173294067, "sibling_score": 0.7814313173294067, "answer_score": 0.6092886418104172, "sibling_qid": "KOL-2022-05-1679-Q008", "sibling_text": "ball bearing roller bearing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Ball, Roller, Radial and Axial Bearings — Choosing the Type", "cross_family": false }, { "answer_id": "BRG-NOM-005", "score": 0.6958944201469421, "sibling_score": 0.6958944201469421, "answer_score": null, "sibling_qid": "KOC-2025-11-1968-Q009", "sibling_text": "difference between end loaded and bush bearings", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bush, Insert, End-Loaded and Undersize Bearings — and Ordering Data", "cross_family": false }, { "answer_id": "BRG-NOM-001", "score": 0.6936619877815247, "sibling_score": 0.6936619877815247, "answer_score": null, "sibling_qid": "KOC-2023-01-1805-Q003", "sibling_text": "bearing nomenclature expecially asking roller bearing", "sibling_family": "2-Stroke - 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Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "MUM-2025-07-2820-Q002", "text": "what jobs you have done in E/R jobs in AE and ME?", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-07-2820", "tray": "new", "candidates": [ { "answer_id": "AEDEC-291-001", "score": 0.4299299716949463, "sibling_score": 0.4299299716949463, "answer_score": null, "sibling_qid": "KOC-2026-05-0047-Q006", "sibling_text": "major jobs done on ae", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "1. AE decarb / overhaul — preparation and full procedure", "cross_family": true }, { "answer_id": "FFF-A-002", "score": 0.396757036447525, "sibling_score": 0.396757036447525, "answer_score": null, "sibling_qid": "MUM-2026-07-3749-Q005", "sibling_text": "firefighting in er", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Fixed firefighting in the engine room and machinery spaces", "cross_family": true }, { "answer_id": "BNKSP-330-001", "score": 0.3754628002643585, "sibling_score": 0.3754628002643585, "answer_score": null, "sibling_qid": "MUM-2025-06-0332-Q006", "sibling_text": "during bunker oil spill action as a 2nd engineer", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Oil spill during bunkering — immediate actions as Second Engineer", "cross_family": true } ] }, { "qid": "MUM-2025-07-2820-Q002S2", "text": "T/C K L M clearance. how will you adjust K value?", "family": "Turbocharger", "subtopic": "K/L/M Values", "tid": "MUM-2025-07-2820", "tray": "new", "candidates": [ { "answer_id": "TC-KLM-330-003", "score": 0.5385040044784546, "sibling_score": 0.5385040044784546, "answer_score": 0.3767229825258255, "sibling_qid": "MUM-2024-11-2256-Q003", "sibling_text": "procedure and reasons for finding k value of t c", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Finding the K value during overhaul — procedure, and the reasons for taking it", "cross_family": false }, { "answer_id": "TC-KLM-330-002", "score": 0.5359525680541992, "sibling_score": 0.5359525680541992, "answer_score": 0.36941969841718675, "sibling_qid": "MUM-2025-05-0273-Q016", "sibling_text": "what is k value in t c", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "What is the K value, why is it important, and what happens if it is wrong?", "cross_family": false }, { "answer_id": "TC-KLM-330-001", "score": 0.5288496017456055, "sibling_score": 0.5288496017456055, "answer_score": null, "sibling_qid": "KOL-2024-08-1950-Q008", "sibling_text": "t c what are the clearances k value for turbocharged in between where the clearance given", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "What are turbocharger K, L and M clearances, and how is each one derived?", "cross_family": false } ] }, { "qid": "MUM-2025-07-2820-Q006", "text": "You hear slapping noise near the chain casing. what could be the reasons?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Chain & Tensioning", "tid": "MUM-2025-07-2820", "tray": "new", "candidates": [ { "answer_id": "CHAIN-TENS-B-002", "score": 0.6058949828147888, "sibling_score": 0.6058949828147888, "answer_score": null, "sibling_qid": "MUM-2025-12-2516-Q008", "sibling_text": "chain inspection how many chain links u can remove dont knw how to adjust chain tightnening heavy sound coming from chain case how you proceed for troubleshooting", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Changing a damaged link and renewing the main-engine chain", "cross_family": false }, { "answer_id": "CHAIN-TENS-A-004", "score": 0.6034295558929443, "sibling_score": 0.6034295558929443, "answer_score": null, "sibling_qid": "KOL-2022-10-3580-Q008", "sibling_text": "bearing defects 2 chain case inspection how to find out whether chain is slack or not", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Chain-Case / Chain-Drive Inspection", "cross_family": false }, { "answer_id": "CHAIN-TENS-C-001", "score": 0.5901605486869812, "sibling_score": 0.5901605486869812, "answer_score": null, "sibling_qid": "CHE-2026-08-3889-Q007", "sibling_text": "what happens if chain is slack in main engine", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main-engine chain drive — how you know it is slack, and how you check and tighten it", "cross_family": false } ] }, { "qid": "MUM-2025-07-2820-Q008", "text": "how will you change purifier to clarifier?", "family": "Purifier & Centrifuges", "subtopic": "Clarifier vs Purifier", "tid": "MUM-2025-07-2820", "tray": "review", "candidates": [ { "answer_id": "PUR-BOWL-P03-FINAL-1-004", "score": 0.753182590007782, "sibling_score": 0.753182590007782, "answer_score": 0.4554280579090118, "sibling_qid": "MUM-2026-07-3802-Q010", "sibling_text": "purifier to clarifier", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "4. 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Alarms, trips, valves, and abnormal conditions of the deck seal", "cross_family": true }, { "answer_id": "ISPS-SL-003", "score": 0.4969732463359833, "sibling_score": 0.4969732463359833, "answer_score": 0.3326819270849228, "sibling_qid": "MUM-2026-02-0781-Q007", "sibling_text": "isps security levels", "sibling_family": "ISPS", "via": "sibling", "answer_title": "Security levels — who sets them, ship vs port, level 2 vs 3", "cross_family": true } ] }, { "qid": "MUM-2025-08-0371-Q007", "text": "Asked which attempt then moved to fxn 5", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-08-0371", "tray": "new", "candidates": [ { "answer_id": "LLC-SUR-POA-3-FINAL-001", "score": 0.4691522717475891, "sibling_score": 0.4691522717475891, "answer_score": null, "sibling_qid": "MUM-2025-09-0469-Q005", "sibling_text": "condition of assignment few x questions then said we will switch to other fn", "sibling_family": "", "via": "sibling", "answer_title": "Conditions of assignment of freeboard", "cross_family": false }, { "answer_id": "TC-A-010", "score": 0.4613373279571533, "sibling_score": 0.4613373279571533, "answer_score": null, "sibling_qid": "KOL-2018-05-3963-Q008", "sibling_text": "what is impedence 5 rao gave me func 5 asked me to repeat func 3", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Impedance and the RC circuit — finding Xc and XL", "cross_family": true }, { "answer_id": "BFS-257-010", "score": 0.4193750023841858, "sibling_score": 0.4193750023841858, "answer_score": null, "sibling_qid": "MUM-2025-05-0277-Q022", "sibling_text": "how to confirm if it s done properly got function 6", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "How to confirm soot blowing has been carried out effectively", "cross_family": true } ] }, { "qid": "MUM-2025-08-0372-Q003", "text": "Detainble deficiency", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2025-08-0372", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-007", "score": 0.7759167551994324, "sibling_score": 0.7759167551994324, "answer_score": null, "sibling_qid": "MUM-2026-02-0732-Q001", "sibling_text": "detainable deficiency as per mic", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false }, { "answer_id": "DCG-002", "score": 0.7307337522506714, "sibling_score": 0.7307337522506714, "answer_score": 0.3663155183196068, "sibling_qid": "KOL-2025-04-0931-Q013", "sibling_text": "example for detainable deficiency", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What are the reasons for PSC detention and what is a detainable deficiency? 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Explain EEXI and EEOI", "cross_family": true } ] }, { "qid": "MUM-2025-08-0373-Q006", "text": "MLC titles and owner liability?", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2025-08-0373", "tray": "new", "candidates": [ { "answer_id": "CLC-CIV-B-003", "score": 0.5179117918014526, "sibling_score": 0.5179117918014526, "answer_score": 0.2602985978126526, "sibling_qid": "MUM-2026-04-0880-Q004", "sibling_text": "mlc what is shipowner liability", "sibling_family": "MLC", "via": "sibling", "answer_title": "LLMC: purpose, scope and limitation of maritime claims", "cross_family": false }, { "answer_id": "MLC-WRH-B-001", "score": 0.47021204233169556, "sibling_score": 0.47021204233169556, "answer_score": null, "sibling_qid": "KOC-2026-05-2135-Q011", "sibling_text": "mlc titles explain title 1 explain dmlc part 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "MLC-WRH-B-006", "score": 0.4228028655052185, "sibling_score": 0.4228028655052185, "answer_score": null, "sibling_qid": "MUM-2026-07-3680-Q005", "sibling_text": "what is mlc certificate under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false } ] }, { "qid": "MUM-2025-08-0374-Q001", "text": "Torsion box", "family": "SOLAS", "subtopic": "Double Bottom / Torsion Box", "tid": "MUM-2025-08-0374", "tray": "review", "candidates": [ { "answer_id": "DB-TORBOX-B-003", "score": 0.715310275554657, "sibling_score": 0.715310275554657, "answer_score": 0.4753572285175323, "sibling_qid": "MUM-2026-05-3222-Q002", "sibling_text": "torsion box", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "What is a torsion box — definition and construction", "cross_family": false }, { "answer_id": "DBTB-A-004", "score": 0.6861041188240051, "sibling_score": 0.6861041188240051, "answer_score": 0.4518747419118881, "sibling_qid": "CHE-2026-05-0590-Q002", "sibling_text": "draw torsion box", "sibling_family": "Ship Construction", "via": "sibling", "answer_title": "Torsion box: construction and arrangement in a container ship", "cross_family": true }, { "answer_id": "DB-TORBOX-B-001", "score": 0.43197004199028016, "sibling_score": null, "answer_score": 0.43197004199028016, "sibling_qid": "", "sibling_text": "torsion box purpose location and why container ships closed box section cell at each deck side strength deck on top sheer strake side shell outboard inner longitudinal bulkhead inboard second deck platform closing it below purpose restore the torsional rigidity lost to the large deck openings resist hull twisting and warping in oblique quartering seas", "sibling_family": "", "via": "answer_title", "answer_title": "Torsion box — purpose, location, and why container ships", "cross_family": false } ] }, { "qid": "MUM-2025-08-0375-Q001", "text": "Which function appearing for", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-08-0375", "tray": "review", "candidates": [ { "answer_id": "IMO-CODES-P03-002", "score": 0.7692147493362427, "sibling_score": 0.7692147493362427, "answer_score": null, "sibling_qid": "MUM-2026-03-0815-Q003", "sibling_text": "which function", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": false }, { "answer_id": "CHK-RM-001", "score": 0.54466712474823, "sibling_score": 0.54466712474823, "answer_score": null, "sibling_qid": "KOL-2025-05-3783-Q007", "sibling_text": "function of chock", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What are chocks? 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committees, certificates, IMSAS, UI and carbon strategy", "cross_family": false }, { "answer_id": "LLC-SUR-POA-3-FINAL-001", "score": 0.5916300415992737, "sibling_score": 0.5916300415992737, "answer_score": null, "sibling_qid": "MUM-2025-09-0469-Q005", "sibling_text": "condition of assignment few x questions then said we will switch to other fn", "sibling_family": "", "via": "sibling", "answer_title": "Conditions of assignment of freeboard", "cross_family": false }, { "answer_id": "COC-002", "score": 0.5709342956542969, "sibling_score": 0.5709342956542969, "answer_score": null, "sibling_qid": "KOL-2016-12-0036-Q002", "sibling_text": "condition of class condition assessignment", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the difference between a Condition of Class and a Condition of Assignment?", "cross_family": true } ] }, { "qid": "MUM-2025-08-0375-Q006", "text": "S&P Global", "family": "", "subtopic": "", "tid": "MUM-2025-08-0375", "tray": "review", "candidates": [ { "answer_id": "AV6-P04-04", "score": 0.664048969745636, "sibling_score": 0.664048969745636, "answer_score": 0.3557369619607925, "sibling_qid": "MUM-2026-04-3029-Q003", "sibling_text": "s p global", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Explain the “S&P Global” reference only to the extent it relates to the recorded GHG oral; declare the reading, since the source thread does not resolve the examiner’s intended angle.", "cross_family": false }, { "answer_id": "ISPS-SSP-P02-001", "score": 0.4397895336151123, "sibling_score": 0.4397895336151123, "answer_score": 0.2520382970571518, "sibling_qid": "KOC-2025-12-0773-Q008", "sibling_text": "ssp int", "sibling_family": "ISPS", "via": "sibling", "answer_title": "Ship Security Plan (SSP) — purpose, scope and contents", "cross_family": false }, { "answer_id": "OTH-CONV-007", "score": 0.42695188522338867, "sibling_score": 0.42695188522338867, "answer_score": null, 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"via": "sibling", "answer_title": "What alternative or latest marine fuels are used for decarbonisation?", "cross_family": false }, { "answer_id": "JCW-SYS-003", "score": 0.48656922578811646, "sibling_score": 0.48656922578811646, "answer_score": null, "sibling_qid": "MUM-2026-06-3420-Q007", "sibling_text": "me sea water cooled temp starting to rise your actions", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "ME jacket-water temperature is rising on all units and will not hold setpoint - reasons, your actions as 2/E, and telling which side of the cooler is leaking", "cross_family": true } ] }, { "qid": "MUM-2025-08-0375-Q008", "text": "Young seafarer definition & requirements", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2025-08-0375", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-004", "score": 0.7984508872032166, "sibling_score": 0.7984508872032166, "answer_score": 0.4938971936702728, "sibling_qid": 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0.38942602276802063, "answer_score": null, "sibling_qid": "KOC-2022-04-0072-Q007", "sibling_text": "green house effect green house gases which annex deals with it and measures to control green house gases on board ship", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Troposphere and above — how does this relate to the ship, which annex, and what controls it on board?", "cross_family": true } ] }, { "qid": "MUM-2025-08-0386-Q001", "text": "✓What types of ship sailed", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-08-0386", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.7935722470283508, "sibling_score": 0.7935722470283508, "answer_score": null, "sibling_qid": "CHE-2026-09-3938-Q001", "sibling_text": "types of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "LLST-AB-001", 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Topside, upper hopper and lower hopper tanks", "cross_family": false }, { "answer_id": "BC-HOPPER-G-001", "score": 0.7469789981842041, "sibling_score": 0.7469789981842041, "answer_score": 0.5754596650600433, "sibling_qid": "KOL-2025-09-1062-Q003", "sibling_text": "tst topside tank in bulk carrier", "sibling_family": "", "via": "sibling", "answer_title": "Hopper and topside tanks — what they are and their purpose", "cross_family": false }, { "answer_id": "SOLAS12-BC-F-003", "score": 0.6614299416542053, "sibling_score": 0.6614299416542053, "answer_score": null, "sibling_qid": "KOC-2025-03-0563-Q004", "sibling_text": "bulk carrier cross section hopper tank and top side tank to be of same proportions", "sibling_family": "", "via": "sibling", "answer_title": "Bulk-carrier midship cross-section — draw & explain", "cross_family": false } ] }, { "qid": "MUM-2025-08-0393-Q018", "text": "Arrangement of bulk carrier cargo hold", "family": "Cargo Ops - Bulk Carriers", "subtopic": "IMSBC / Grain / BLU Code", "tid": "MUM-2025-08-0393", "tray": "review", "candidates": [ { "answer_id": "BC-IMSBC-002", "score": 0.8694020509719849, "sibling_score": 0.8694020509719849, "answer_score": 0.6036080479621887, "sibling_qid": "MUM-2026-02-0762-Q008", "sibling_text": "arrangement of bulk carrier cargo hold", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "2. Bulk carrier construction and structural design", "cross_family": false }, { "answer_id": "BSBH-420-002", "score": 0.775886595249176, "sibling_score": 0.775886595249176, "answer_score": null, "sibling_qid": "MUM-2026-05-3262-Q001", "sibling_text": "bulk carrier arrangement forward of collision bulkhead", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Fore-end / forepeak construction forward of the collision bulkhead — members and cross-section", "cross_family": false }, { "answer_id": "BC-IMSBC-001", "score": 0.7046574354171753, "sibling_score": 0.7046574354171753, "answer_score": null, "sibling_qid": "CHE-2025-08-0052-Q005", "sibling_text": "bulk carrier safeties relates to construction particulary in cargo hold for strengthen", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "1. Bulk carrier safety requirements — SOLAS Chapter XII and recent additions", "cross_family": false } ] }, { "qid": "MUM-2025-08-0394-Q002", "text": "Why loadicator is approved type, and its purpose ?", "family": "Stability & Loadicator", "subtopic": "Loadicator", "tid": "MUM-2025-08-0394", "tray": "review", "candidates": [ { "answer_id": "SOLAS12-BC-D-001", "score": 0.6598393321037292, "sibling_score": 0.6598393321037292, "answer_score": 0.3449364721775055, "sibling_qid": "MUM-2026-06-3413-Q001", "sibling_text": "why load indicator is approved type and its purpose", "sibling_family": "Stability & Loadicator", "via": "sibling", "answer_title": "Loadicator — why a loading instrument is required, and the loading-restriction concern", "cross_family": false }, { "answer_id": "LL-CONV-P06-002", "score": 0.42838990688323975, "sibling_score": 0.42838990688323975, "answer_score": 0.28766956776380537, "sibling_qid": "MUM-2024-07-0184-Q004", "sibling_text": "type of loadline", "sibling_family": "", "via": "sibling", "answer_title": "LLC-P06-02 - Types of load lines: standard, seasonal, timber, WNA and multiple load lines", "cross_family": false }, { "answer_id": "LL-CONV-P04-002", "score": 0.4076254367828369, "sibling_score": 0.4076254367828369, "answer_score": 0.2912244290113449, "sibling_qid": "KOL-2021-08-0534-Q004", "sibling_text": "requirements for loadline certificate issuance", "sibling_family": "", "via": "sibling", "answer_title": "Load Line Convention, certificates, assigning authority and detention risk", "cross_family": false } ] }, { "qid": "MUM-2025-08-0396-Q003", "text": "What is safety and what is security. 6. Solas A pack and B pack. 7. DMLC part 1 and part 2. 8. Load line certificates", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2025-08-0396", "tray": "new", "candidates": [ { "answer_id": "MSB-ESB-E-001", "score": 0.5103718042373657, "sibling_score": 0.5103718042373657, "answer_score": null, "sibling_qid": "KOL-2019-02-2266-Q004", "sibling_text": "msb safety in both log and high voltage which are most 2 important safety", "sibling_family": "", "via": "sibling", "answer_title": "What safeties, protection trips, relays and alarms are provided on the MSB / ESB, and how are they tested?", "cross_family": false }, { "answer_id": "CERT-LIST-P02-001", "score": 0.5048171877861023, "sibling_score": 0.5048171877861023, "answer_score": null, "sibling_qid": "CHE-2026-05-0560-Q023", "sibling_text": "list of all certificates carried on board section wise solas marpol mlc load line all", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "SOLAS certificates carried onboard", "cross_family": true }, { "answer_id": "CERT-LIST-P02-003", "score": 0.5029375553131104, "sibling_score": 0.5029375553131104, "answer_score": null, "sibling_qid": "KOL-2020-06-0411-Q003", "sibling_text": "sec cargo ship safety equipment cert", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Certificates that decide ship type and permitted cargo", "cross_family": true } ] }, { "qid": "MUM-2025-08-0396-Q005", "text": "Major non conformity . Result - pass, coc", "family": "ISM Code", "subtopic": "Major / Minor NC", "tid": "MUM-2025-08-0396", "tray": "review", "candidates": [ { "answer_id": "ISMNC-002", "score": 0.6644396185874939, "sibling_score": 0.6644396185874939, "answer_score": null, "sibling_qid": "MUM-2026-08-3832-Q001", "sibling_text": "major non conformity", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a major non-conformity under the ISM Code? Give the definition and name some.", "cross_family": false }, { "answer_id": "ISMNC-005", "score": 0.5989048480987549, "sibling_score": 0.5989048480987549, "answer_score": 0.43726290464401246, "sibling_qid": "KOL-2025-04-0931-Q012", "sibling_text": "example for major non confirmity", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Give examples of a non-conformity and of a major non-conformity.", "cross_family": false }, { "answer_id": "ISMNC-003", "score": 0.5977997183799744, "sibling_score": 0.5977997183799744, "answer_score": 0.42280280590057373, "sibling_qid": "MUM-2025-01-0238-Q006", "sibling_text": "major non conformity and non conformity", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Differentiate between a major non-conformity and a non-conformity under the ISM Code.", "cross_family": false } ] }, { "qid": "MUM-2025-08-0397-Q004", "text": "Er sw pipe crack, flooded above bottom platform, action as 2nd eng?", "family": "Workshop & Welding", "subtopic": "Boiler Plate Replacement", "tid": "MUM-2025-08-0397", "tray": "new", "candidates": [ { "answer_id": "CAS-ESTOP-001", "score": 0.6381470561027527, "sibling_score": 0.6381470561027527, "answer_score": 0.43328548073768614, "sibling_qid": "MUM-2024-09-2244-Q003", "sibling_text": "crack in main sea water line water flooded till tank top action as 2nd engineer", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Engine-room flooding / rapidly rising bilges — immediate action as 2/E", "cross_family": true }, { "answer_id": "WBS-C-005", "score": 0.6123943328857422, "sibling_score": 0.6123943328857422, "answer_score": null, "sibling_qid": "MUM-2025-12-2507-Q004", "sibling_text": "steam pipe crack your action as second engineer", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Crack and leak repair — deck plate, steam line, air receiver and other shipboard cracks", "cross_family": false }, { "answer_id": "SEA-CHEST-006", "score": 0.6121687293052673, "sibling_score": 0.6121687293052673, "answer_score": null, "sibling_qid": "MUM-2026-01-2529-Q004", "sibling_text": "3 e raised engineer call and he s on bottom platform water has reached above bottom reason is leak has happened in common sea chest valve your action as 2e", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "2/E actions: leak, crack, fouling, stuck valve, valve-life", "cross_family": true } ] }, { "qid": "MUM-2025-08-0397-Q005", "text": "IMO structure", "family": "Other Conventions", "subtopic": "UNCLOS", "tid": "MUM-2025-08-0397", "tray": "review", "candidates": [ { "answer_id": "IMO-CC-P01-001", "score": 0.7823330163955688, "sibling_score": 0.7823330163955688, "answer_score": 0.39093837440013884, "sibling_qid": "MUM-2026-03-0826-Q006", "sibling_text": "imo structure", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Explain the structure and organs of IMO — Assembly, Council, Committees and Secretariat.", "cross_family": false }, { "answer_id": "IMO-5PIL-001", "score": 0.7316306829452515, "sibling_score": 0.7316306829452515, "answer_score": 0.39054752737283704, "sibling_qid": "MUM-2025-11-0571-Q001", "sibling_text": "imo structure", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Structure of IMO — the main organs", "cross_family": true }, { "answer_id": "IMO-CODES-P03-002", "score": 0.43110378980636593, "sibling_score": null, "answer_score": 0.43110378980636593, "sibling_qid": "", "sibling_text": "imo overview structure committees certificates imsas ui and carbon strategy", "sibling_family": "", "via": "answer_title", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": false } ] }, { "qid": "MUM-2025-08-0398-Q003", "text": "Checks on bunker tank", "family": "MARPOL - General & Compliance", "subtopic": "Bunker Plan / Checks", "tid": "MUM-2025-08-0398", "tray": "review", "candidates": [ { "answer_id": "BTKS-573-003", "score": 0.6846159100532532, "sibling_score": 0.6846159100532532, "answer_score": 0.4957894921302795, "sibling_qid": "MUM-2025-07-0357-Q004S2", "sibling_text": "bunker tank inspection tank is empty and ventilated", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "How will you inspect a bunker tank when the tank is empty and ventilated?", "cross_family": false }, { "answer_id": "BUNK-PLAN-001", "score": 0.6787230372428894, "sibling_score": 0.6787230372428894, "answer_score": null, "sibling_qid": "KOL-2020-10-0431-Q005", "sibling_text": "checks as 2 e during bunkering", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Second Engineer's duties, preparation and checks for bunkering", "cross_family": false }, { "answer_id": "BTKS-573-001", "score": 0.6446883082389832, "sibling_score": 0.6446883082389832, "answer_score": 0.4431222915649414, "sibling_qid": "MUM-2025-12-0618-Q008", "sibling_text": "bunker tank survey", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "How will you prepare a fuel-oil / bunker tank for survey, inspection or hot work?", "cross_family": false } ] }, { "qid": "MUM-2025-08-0398-Q004", "text": "IMO structure", "family": "Other Conventions", "subtopic": "UNCLOS", "tid": "MUM-2025-08-0398", "tray": "review", "candidates": [ { "answer_id": "IMO-CC-P01-001", "score": 0.7823330760002136, "sibling_score": 0.7823330760002136, "answer_score": 0.3909383237361908, "sibling_qid": "MUM-2026-03-0826-Q006", "sibling_text": "imo structure", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Explain the structure and organs of IMO — Assembly, Council, Committees and Secretariat.", "cross_family": false }, { "answer_id": "IMO-5PIL-001", "score": 0.7316306233406067, "sibling_score": 0.7316306233406067, "answer_score": 0.390547502040863, "sibling_qid": "MUM-2025-11-0571-Q001", "sibling_text": "imo structure", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Structure of IMO — the main organs", "cross_family": true }, { "answer_id": "IMO-CODES-P03-002", "score": 0.43110378980636593, "sibling_score": null, "answer_score": 0.43110378980636593, "sibling_qid": "", "sibling_text": "imo overview structure committees certificates imsas ui and carbon strategy", "sibling_family": "", "via": "answer_title", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": false } ] }, { "qid": "MUM-2025-08-0402-Q002S10", "text": "COA and load line survey?", "family": "", "subtopic": "", "tid": "MUM-2025-08-0402", "tray": "review", "candidates": [ { "answer_id": "COC-002", "score": 0.6723588705062866, "sibling_score": 0.6723588705062866, "answer_score": null, "sibling_qid": "MUM-2025-10-0525-Q001S9", "sibling_text": "coa and load line survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the difference between a Condition of Class and a Condition of Assignment?", "cross_family": false }, { "answer_id": "LL-CONV-P04-001", "score": 0.6719100475311279, "sibling_score": 0.6719100475311279, "answer_score": null, "sibling_qid": "MUM-2025-06-0332-Q008", "sibling_text": "coa and load line survey", "sibling_family": "", "via": "sibling", "answer_title": "Conditions of assignment of freeboard: purpose, checks and effect on freeboard", "cross_family": false }, { "answer_id": "LLC-SURV-P01-001", "score": 0.6069622039794922, "sibling_score": 0.6069622039794922, "answer_score": 0.3894917920231819, "sibling_qid": "MUM-2025-06-0312-Q002", "sibling_text": "load line survey as 2 e", "sibling_family": "", "via": "sibling", "answer_title": "Load line survey preparation as Second Engineer: engine-room scope, machinery openings, tanks/vents, valves and overboard checks", "cross_family": false } ] }, { "qid": "MUM-2025-08-0402-Q002S2", "text": "Engine type ?", "family": "", "subtopic": "", "tid": "MUM-2025-08-0402", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.7829769849777222, "sibling_score": 0.7829769849777222, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7662839889526367, "sibling_score": 0.7662839889526367, "answer_score": null, "sibling_qid": "MUM-2026-09-3880-Q001", "sibling_text": "main engine type", "sibling_family": "2-Stroke - Operations & General", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.7547570466995239, "sibling_score": 0.7547570466995239, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false } ] }, { "qid": "MUM-2025-08-0402-Q002S3", "text": "ISM ? what is it ?why it is necessary.", "family": "ISM Code", "subtopic": "ISM - Elements/Objectives", "tid": "MUM-2025-08-0402", "tray": "new", "candidates": [ { "answer_id": "ISM-DPA-002", "score": 0.5559268593788147, "sibling_score": 0.5559268593788147, "answer_score": null, "sibling_qid": "KOC-2023-03-0172-Q004", "sibling_text": "ism who is responsible for ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "DPA basis : which convention, which code, and who is responsible for ISM", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.5499415993690491, "sibling_score": 0.5499415993690491, "answer_score": null, "sibling_qid": "MUM-2025-06-0332-Q002", "sibling_text": "ism what is it why it is necessary", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "ISM-AUD-P02-002", "score": 0.5223119854927063, "sibling_score": 0.5223119854927063, "answer_score": 0.3179867476224899, "sibling_qid": "KOC-2026-01-2087-Q013", "sibling_text": "what is the purpose of ism internal", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM Code — what it is, purpose, objectives and structure", "cross_family": false } ] }, { "qid": "MUM-2025-08-0402-Q002S4", "text": "What is MNC and how to deal with it ?", "family": "", "subtopic": "", "tid": "MUM-2025-08-0402", "tray": "new", "candidates": [ { "answer_id": "ISMNC-006", "score": 0.5021095275878906, "sibling_score": 0.5021095275878906, "answer_score": null, "sibling_qid": "MUM-2025-07-0361-Q010", "sibling_text": "how to deal with mnc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Your ship has been issued a major non-conformity: what action do you take, what are the repercussions, and can the ship sail with it?", "cross_family": false }, { "answer_id": "ISMNC-002", "score": 0.5002512335777283, "sibling_score": 0.5002512335777283, "answer_score": null, "sibling_qid": "MUM-2023-03-0091-Q009", "sibling_text": "define mnc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a major non-conformity under the ISM Code? Give the definition and name some.", "cross_family": false }, { "answer_id": "ISMNC-003", "score": 0.46624571084976196, "sibling_score": 0.46624571084976196, "answer_score": null, "sibling_qid": "MUM-2025-07-0350-Q003", "sibling_text": "mnc and nc define", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Differentiate between a major non-conformity and a non-conformity under the ISM Code.", "cross_family": false } ] }, { "qid": "MUM-2025-08-0402-Q002S5", "text": "SCR ? what is it", "family": "", "subtopic": "", "tid": "MUM-2025-08-0402", "tray": "new", "candidates": [ { "answer_id": "SCR-306-A-001", "score": 0.6242098808288574, "sibling_score": 0.6242098808288574, "answer_score": 0.3857178598642349, "sibling_qid": "MUM-2024-04-2762-Q006", "sibling_text": "explain scr", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What an SCR is and how it works", "cross_family": false }, { "answer_id": "AV6-P03-02", "score": 0.6132069230079651, "sibling_score": 0.6132069230079651, "answer_score": 0.3195196360349655, "sibling_qid": "CHE-2026-05-0533-Q005", "sibling_text": "explain about scr", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SCR for marine NOx control — meaning, working principle, chemistry and system components", "cross_family": false }, { "answer_id": "SCR-306-A-004", "score": 0.570977509021759, "sibling_score": 0.570977509021759, "answer_score": null, "sibling_qid": "KOL-2022-09-2610-Q006", "sibling_text": "scr uses", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Applications and onboard uses", "cross_family": false } ] }, { "qid": "MUM-2025-08-0402-Q002S6", "text": "what all are the records and documents to be kept under this ?", "family": "", "subtopic": "", "tid": "MUM-2025-08-0402", "tray": "new", "candidates": [ { "answer_id": "A6-NSEC-003", "score": 0.6054786443710327, "sibling_score": 0.6054786443710327, "answer_score": null, "sibling_qid": "MUM-2025-10-0525-Q001S5", "sibling_text": "scr what is it what all are the records and documents to be kept under this", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "NOx — formation, limits & reduction (SCR / EGR)", "cross_family": false }, { "answer_id": "AVICERT-001", "score": 0.601502537727356, "sibling_score": 0.601502537727356, "answer_score": null, "sibling_qid": "MUM-2026-02-0757-Q004", "sibling_text": "annenx 6 what all records u maintain", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What certificates and documents are required to be carried on board under MARPOL Annex VI?", "cross_family": false }, { "answer_id": "AIRP-188-005", "score": 0.5460727214813232, "sibling_score": 0.5460727214813232, "answer_score": null, "sibling_qid": "KOC-2026-08-2121-Q002", "sibling_text": "ods record book why and what it contents", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "ODS Record Book and the IAPP equipment list — what and where?", "cross_family": false } ] }, { "qid": "MUM-2025-08-0402-Q002S9", "text": "IMO structures?.", "family": "IMO Structure & Conventions", "subtopic": "IMO 5 Pillars / Committees", "tid": "MUM-2025-08-0402", "tray": "review", "candidates": [ { "answer_id": "IMO-5PIL-001", "score": 0.7806234359741211, "sibling_score": 0.7806234359741211, "answer_score": 0.39248869121074675, "sibling_qid": "MUM-2025-06-0332-Q007", "sibling_text": "imo structures", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Structure of IMO — the main organs", "cross_family": false }, { "answer_id": "IMO-CC-P01-001", "score": 0.775056779384613, "sibling_score": 0.775056779384613, "answer_score": 0.3963077649474144, "sibling_qid": "MUM-2026-06-3478-Q001", "sibling_text": "imo structure", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Explain the structure and organs of IMO — Assembly, Council, Committees and Secretariat.", "cross_family": false }, { "answer_id": "IMO-CODES-P03-002", "score": 0.4428975462913513, "sibling_score": null, "answer_score": 0.4428975462913513, "sibling_qid": "", "sibling_text": "imo overview structure committees certificates imsas ui and carbon strategy", "sibling_family": "", "via": "answer_title", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": false } ] }, { "qid": "MUM-2025-08-0402-Q003S2", "text": "What is dynamic load testing ? What all are the checks ?", "family": "", "subtopic": "", "tid": "MUM-2025-08-0402", "tray": "review", "candidates": [ { "answer_id": "LBT-TEST-B-001", "score": 0.6683880686759949, "sibling_score": 0.6683880686759949, "answer_score": null, "sibling_qid": "KOL-2024-12-0896-Q005", "sibling_text": "dynamic and static load testing and xx met", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat/davit load-test proof loads and test conditions", "cross_family": false }, { "answer_id": "LB-SDT-A-001", "score": 0.6529247760772705, "sibling_score": 0.6529247760772705, "answer_score": null, "sibling_qid": "CHE-2026-08-0672-Q004", "sibling_text": "dynamic and static load test", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat static and dynamic test — purpose and procedure", "cross_family": false }, { "answer_id": "RA-MGMT-B-001", "score": 0.6056836843490601, "sibling_score": 0.6056836843490601, "answer_score": null, "sibling_qid": "MUM-2025-10-0525-Q002", "sibling_text": "how will you prepare ra risk assessment at what basis u will analyse risk 10 what is dynamic load testing what all are the checks", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "How is a shipboard risk assessment prepared and carried out?", "cross_family": false } ] }, { "qid": "MUM-2025-08-0402-Q003S3", "text": "Difference between Mair air compressor and AC comp lubrication system pressure ?", "family": "", "subtopic": "", "tid": "MUM-2025-08-0402", "tray": "review", "candidates": [ { "answer_id": "MAC-353-005", "score": 0.8040545582771301, "sibling_score": 0.8040545582771301, "answer_score": 0.5652619242668152, "sibling_qid": "MUM-2025-06-1134-Q001", "sibling_text": "difference between mair air compressor and ac comp lubrication system pressure", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Lubrication of the main air compressor; MAC vs A/C-compressor LO pressure", "cross_family": false }, { "answer_id": "CAP-CTRL-003", "score": 0.6200121641159058, "sibling_score": 0.6200121641159058, "answer_score": 0.49709971249103546, "sibling_qid": "MUM-2026-05-3259-Q009", "sibling_text": "ref and ac compressor why discharge press is different", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "CG-003 · AC-compressor vs refrigeration-compressor unloaders — the real difference", "cross_family": false }, { "answer_id": "REEF-COMP-008", "score": 0.6132687330245972, "sibling_score": 0.6132687330245972, "answer_score": null, "sibling_qid": "KOL-2017-12-3109-Q003", "sibling_text": "refer suction press garage and compressor suc press gauge difference", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Valves, clearances, oil carry-over, refrigerant-in-oil, frosting, tandem valves, cooling — fault checks", "cross_family": false } ] }, { "qid": "MUM-2025-08-0402-Q003S4", "text": "what is the meaning of Fail safe and fail set ?", "family": "", "subtopic": "", "tid": "MUM-2025-08-0402", "tray": "review", "candidates": [ { "answer_id": "AUC-P03-05", "score": 0.6518861055374146, "sibling_score": 0.6518861055374146, "answer_score": 0.45464808642864224, "sibling_qid": "MUM-2026-07-3698-Q003", "sibling_text": "fail set and failsafe", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Fail-safe, fail-set and redundancy — three-way jacket-water valve on loss of signal", "cross_family": false }, { "answer_id": "FSF-BF073-002", "score": 0.5196290016174316, "sibling_score": 0.5196290016174316, "answer_score": 0.46940624117851254, "sibling_qid": "MUM-2022-09-2696-Q013", "sibling_text": "3 fail safe and fail set where in engine room", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "What is the difference between fail safe and fail set, and where are they found in the engine room?", "cross_family": false }, { "answer_id": "CTRL-TL-010", "score": 0.49421489238739014, "sibling_score": 0.49421489238739014, "answer_score": null, "sibling_qid": "KOL-2021-07-2466-Q003", "sibling_text": "fail safe in control system", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Pneumatic control: nozzle-flapper, DP, actuators and fail-safe", "cross_family": false } ] }, { "qid": "MUM-2025-08-0402-Q003S5", "text": "Tell me about Capacity control in AC ? At what condition unit cuts off ? how it’s work.", "family": "", "subtopic": "", "tid": "MUM-2025-08-0402", "tray": "review", "candidates": [ { "answer_id": "CAP-CTRL-005", "score": 0.6953239440917969, "sibling_score": 0.6953239440917969, "answer_score": 0.5335605293512344, "sibling_qid": "MUM-2025-06-1134-Q003", "sibling_text": "tell me about capacity control in ac at what condition unit cuts off how it s work", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "CG-005 · What happens as load drops or the room reaches set temperature", "cross_family": false }, { "answer_id": "CAP-CTRL-001", "score": 0.6580125093460083, "sibling_score": 0.6580125093460083, "answer_score": 0.5510063052177429, "sibling_qid": "MUM-2026-02-1266-Q004", "sibling_text": "capacity control in ac why working", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "CG-001 · Capacity control in an AC / refrigeration compressor — why and how", "cross_family": false }, { "answer_id": "CCSC-314-002", "score": 0.632875919342041, "sibling_score": 0.632875919342041, "answer_score": 0.5387897074222564, "sibling_qid": "KOL-2025-06-1980-Q005", "sibling_text": "5 capacity control in ac", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Compressor capacity control and the capacity controller", "cross_family": false } ] }, { "qid": "MUM-2025-08-0402-Q003S6", "text": "How to tell a capacity of AC system?", "family": "", "subtopic": "", "tid": "MUM-2025-08-0402", "tray": "review", "candidates": [ { "answer_id": "CAP-CTRL-001", "score": 0.6536859273910522, "sibling_score": 0.6536859273910522, "answer_score": 0.4775888234376907, "sibling_qid": "MUM-2026-03-1286-Q006", "sibling_text": "how capacity of ac decided and works", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "CG-001 · Capacity control in an AC / refrigeration compressor — why and how", "cross_family": false }, { "answer_id": "CCSC-314-002", "score": 0.600801944732666, "sibling_score": 0.600801944732666, "answer_score": 0.4666005730628967, "sibling_qid": "KOL-2025-06-1980-Q005", "sibling_text": "5 capacity control in ac", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Compressor capacity control and the capacity controller", "cross_family": false }, { "answer_id": "TON-REF-001", "score": 0.5906723141670227, "sibling_score": 0.5906723141670227, "answer_score": null, "sibling_qid": "MUM-2026-04-2675-Q006S4", "sibling_text": "one ton of refrigeration capacity control in ac", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "What is 1 ton of refrigeration, and what is its equivalent cooling capacity?", "cross_family": false } ] }, { "qid": "MUM-2025-08-0402-Q004", "text": "what is the meaning of one tone cooling capacity. ( Some cross question)", "family": "Refrigeration & AC", "subtopic": "Cooling Capacity / Psychrometrics / Humidity Control", "tid": "MUM-2025-08-0402", "tray": "review", "candidates": [ { "answer_id": "TON-REF-001", "score": 0.7434671521186829, "sibling_score": 0.7434671521186829, "answer_score": 0.5083157479763031, "sibling_qid": "MUM-2026-04-2675-Q006S4", "sibling_text": "one ton of refrigeration capacity control in ac", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "What is 1 ton of refrigeration, and what is its equivalent cooling capacity?", "cross_family": false }, { "answer_id": "TON-REF-003", "score": 0.6924883723258972, "sibling_score": 0.6924883723258972, "answer_score": 0.5669738590717316, "sibling_qid": "MUM-2026-04-1007-Q016", "sibling_text": "coefficient of refrigeration why not ton of refrigeration", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Why is refrigeration capacity expressed as ton of refrigeration instead of only coefficient of performance?", "cross_family": false }, { "answer_id": "CAP-CTRL-001", "score": 0.6386361718177795, "sibling_score": 0.6386361718177795, "answer_score": 0.4809272229671478, "sibling_qid": "MUM-2026-03-1286-Q006", "sibling_text": "how capacity of ac decided and works", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "CG-001 · Capacity control in an AC / refrigeration compressor — why and how", "cross_family": false } ] }, { "qid": "MUM-2025-08-0408-Q003", "text": "Icing on cargo tank. how to remove? KEY ANS : Secondary barrier moisture removal and sea water spray on top of tank dome.", "family": "Cargo Ops - Gas Carriers", "subtopic": "Cargo Tank Construction", "tid": "MUM-2025-08-0408", "tray": "new", "candidates": [ { "answer_id": "GC-TANK-003", "score": 0.5784011483192444, "sibling_score": 0.5784011483192444, "answer_score": null, "sibling_qid": "KOL-2024-08-0852-Q002", "sibling_text": "primary and secondary barrier of cargo tank", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "What is a Type B independent tank and the purpose of a partial secondary barrier?", "cross_family": false }, { "answer_id": "LPG-LNG-005", "score": 0.5696387887001038, "sibling_score": 0.5696387887001038, "answer_score": null, "sibling_qid": "KOL-2019-03-0264-Q002", "sibling_text": "hydrates in cargo what to do", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Hydrate formation in LPG cargo – prevention and treatment", "cross_family": false }, { "answer_id": "ESE-P01-005", "score": 0.5585356950759888, "sibling_score": 0.5585356950759888, "answer_score": null, "sibling_qid": "MUM-2022-07-2136-Q001", "sibling_text": "tank entry after cargo discharge operation warming up purging gas freeing", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "Cargo tank, pump-room, ballast tank or duct-keel entry preparation", "cross_family": true } ] }, { "qid": "MUM-2025-08-0408-Q003S2", "text": "Damage stability for gas tankers ? Exact values ?", "family": "", "subtopic": "", "tid": "MUM-2025-08-0408", "tray": "review", "candidates": [ { "answer_id": "DS-P05-001", "score": 0.6678276062011719, "sibling_score": 0.6678276062011719, "answer_score": 0.5460881531238556, "sibling_qid": "MUM-2026-09-3961-Q017", "sibling_text": "damage stability criteria for gas tankers", "sibling_family": "Ship Construction & Naval Architecture", "via": "sibling", "answer_title": "1. Damage stability criteria for tankers, chemical/gas/LNG/LPG carriers", "cross_family": false }, { "answer_id": "DS-P04-004", "score": 0.5920547246932983, "sibling_score": 0.5920547246932983, "answer_score": null, "sibling_qid": "KOL-2019-04-0278-Q002", "sibling_text": "damage stablity criteria wrt to oil tanker gas carrier n bulk carrier", "sibling_family": "", "via": "sibling", "answer_title": "Damage stability requirements for bulk carriers", "cross_family": false }, { "answer_id": "STAB-SD-A-001", "score": 0.5763974189758301, "sibling_score": 0.5763974189758301, "answer_score": null, "sibling_qid": "KOL-2026-05-4087-Q005", "sibling_text": "criteria for intact stability of tankers", "sibling_family": "", "via": "sibling", "answer_title": "Intact stability and the 2008 IS Code criteria", "cross_family": false } ] }, { "qid": "MUM-2025-08-0408-Q005", "text": "how to calculate dcp req quantity (answered him with formula) lot of x questions. 7 .Why 2 safety valves are provided on tank dome.(Satisfied with answer)", "family": "Boilers - Mountings & Safety Devices", "subtopic": "Safety Valve", "tid": "MUM-2025-08-0408", "tray": "new", "candidates": [ { "answer_id": "DCP-FIXED-A-003", "score": 0.6093729138374329, "sibling_score": 0.6093729138374329, "answer_score": null, "sibling_qid": "KOC-2025-11-0708-Q001", "sibling_text": "fixed dcp system draw and explain what is the chemical inside what is the use of magnisium sterate is there a relief valve in the main tank what is the pressure inside the tank what is the pressure of relief valve", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Capacities, pressures, relief settings, regulations and calculation", "cross_family": true }, { "answer_id": "CO2-SYS-005", "score": 0.5895096659660339, "sibling_score": 0.5895096659660339, "answer_score": null, "sibling_qid": "MUM-2022-04-0011-Q007", "sibling_text": "how is amount of co2 required calculated what if air bottle relief valve doesn t vent to atmosphere", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 system safeties, CO2-room requirements, alarms and ventilation", "cross_family": true }, { "answer_id": "CO2-CALC-P01-002", "score": 0.5862125754356384, "sibling_score": 0.5862125754356384, "answer_score": null, "sibling_qid": "CHE-2025-08-0016-Q011", "sibling_text": "how many bottles require to flood engine room with co2 answer him with flooding regulation and show him how it is calculated", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "How is the required CO2 quantity and number of bottles calculated for an engine-room total-flooding system?", "cross_family": true } ] }, { "qid": "MUM-2025-08-0408-Q006", "text": "Coffin plate..how it’s attached and oxter plate..( explain him well- satisfied with answer)", "family": "Ship Construction", "subtopic": "Coffin plate", "tid": "MUM-2025-08-0408", "tray": "new", "candidates": [ { "answer_id": "KGF-A-001", "score": 0.5966747999191284, "sibling_score": 0.5966747999191284, "answer_score": null, "sibling_qid": "MUM-2026-08-3837-Q005", "sibling_text": "coffin plate", "sibling_family": "Ship Construction", "via": "sibling", "answer_title": "Construction terminology & structural member identification", "cross_family": false }, { "answer_id": "FWFB-P02-001", "score": 0.5927466154098511, "sibling_score": 0.5927466154098511, "answer_score": null, "sibling_qid": "MUM-2026-02-0753-Q003", "sibling_text": "guset plate coffin plate margin plate", "sibling_family": "", "via": "sibling", "answer_title": "Brackets, knees and gusset plates", "cross_family": false }, { "answer_id": "SHELL-PLT-B-002", "score": 0.5878462791442871, "sibling_score": 0.5878462791442871, "answer_score": null, "sibling_qid": "KOL-2024-08-0854-Q003", "sibling_text": "stealer plate coffin plate gusset plate", "sibling_family": "", "via": "sibling", "answer_title": "Stealer plate and strake nesting", "cross_family": false } ] }, { "qid": "MUM-2025-08-0408-Q006S2", "text": "Differet tyoes of fire doors", "family": "SOLAS - 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Angle of loll on the GZ curve — the GM condition", "cross_family": false }, { "answer_id": "STAB-GZ-P03-001", "score": 0.28875496685504914, "sibling_score": null, "answer_score": 0.28875496685504914, "sibling_qid": "", "sibling_text": "cross curves kn curves what they are their axes and how they give you gz kn is the righting arm from the keel k to the line of action of buoyancy n is the foot of that perpendicular pure hull geometry a function of hull form displacement and heel angle only independent of kg", "sibling_family": "", "via": "answer_title", "answer_title": "Cross curves / KN curves — what they are, their axes, and how they give you GZ", "cross_family": false } ] }, { "qid": "MUM-2025-08-0414-Q001", "text": "Ig and cargo Alarms and trip before dischargeing", "family": "Cargo Ops - Bulk Carriers", "subtopic": "IMSBC / Grain / BLU Code", "tid": "MUM-2025-08-0414", "tray": "review", "candidates": [ { "answer_id": "COT-P03-05", "score": 0.8039790391921997, "sibling_score": 0.8039790391921997, "answer_score": 0.585648387670517, "sibling_qid": "MUM-2026-01-0701-Q001", "sibling_text": "ig and cargo alarms and trip before dischargeing", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Alarms, trips and interlocks of the IG and cargo-pumping systems tested before discharge — and how, safely", "cross_family": true }, { "answer_id": "IGAT-583-001", "score": 0.7137982845306396, "sibling_score": 0.7137982845306396, "answer_score": null, "sibling_qid": "MUM-2025-11-0555-Q002", "sibling_text": "before discharging ig alarm and cargo checks", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "State all the alarms, trips and safety cut-outs provided on a tanker inert gas (IG) system.", "cross_family": true }, { "answer_id": "CPS-316-004", "score": 0.663375735282898, "sibling_score": 0.663375735282898, "answer_score": 0.5593943297863007, "sibling_qid": "MUM-2025-12-2880-Q005", "sibling_text": "cargo pumping alarm before discharge", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Cargo-system alarms, trips, safeties, emergency stops and monitoring during discharge", "cross_family": true } ] }, { "qid": "MUM-2025-08-0414-Q002", "text": "Detainable deficiency of mlc", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2025-08-0414", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-007", "score": 0.7601947784423828, "sibling_score": 0.7601947784423828, "answer_score": 0.3542370557785034, "sibling_qid": "MUM-2026-01-0701-Q002", "sibling_text": "detainable deficiency of mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false }, { "answer_id": "IGC-IGF-005", "score": 0.3276086926460266, "sibling_score": null, "answer_score": 0.3276086926460266, "sibling_qid": "", "sibling_text": "detainable deficiencies under the igc code detainable deficiency hazardous enough to warrant psc detention until rectified psc mou guidance applied with the igc code no valid international certificate of fitness or cargo not listed on it", "sibling_family": "", "via": "answer_title", "answer_title": "Detainable deficiencies under the IGC Code", "cross_family": false }, { "answer_id": "AII-DISCH-007", "score": 0.32588297724723814, "sibling_score": null, "answer_score": 0.32588297724723814, "sibling_qid": "", "sibling_text": "what deficiency may be raised when the annex ii discharge criteria are not satisfied a non compliant discharge is an illegal nls discharge not a minor defect psc deficiency discharge outside reg 13 inadequate stripping cargo record book gaps or false entries potentially detainable", "sibling_family": "", "via": "answer_title", "answer_title": "What deficiency may be raised when the Annex II discharge criteria are not satisfied", "cross_family": false } ] }, { "qid": "MUM-2025-08-0414-Q004", "text": "Imo structure", "family": "Other Conventions", "subtopic": "UNCLOS", "tid": "MUM-2025-08-0414", "tray": "review", "candidates": [ { "answer_id": "IMO-CC-P01-001", "score": 0.7823330760002136, "sibling_score": 0.7823330760002136, "answer_score": 0.3909383490681648, "sibling_qid": "MUM-2026-03-0826-Q006", "sibling_text": "imo structure", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Explain the structure and organs of IMO — Assembly, Council, Committees and Secretariat.", "cross_family": false }, { "answer_id": "IMO-5PIL-001", "score": 0.7316306829452515, "sibling_score": 0.7316306829452515, "answer_score": 0.39054752737283704, "sibling_qid": "MUM-2025-11-0571-Q001", "sibling_text": "imo structure", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Structure of IMO — the main organs", "cross_family": true }, { "answer_id": "IMO-CODES-P03-002", "score": 0.43110378980636593, "sibling_score": null, "answer_score": 0.43110378980636593, "sibling_qid": "", "sibling_text": "imo overview structure committees certificates imsas ui and carbon strategy", "sibling_family": "", "via": "answer_title", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": false } ] }, { "qid": "MUM-2025-08-0415-Q004", "text": "Oil Mist Detector (OMD) working?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "OMD / Oil Mist Detector", "tid": "MUM-2025-08-0415", "tray": "review", "candidates": [ { "answer_id": "OMD-001", "score": 0.8310055732727051, "sibling_score": 0.8310055732727051, "answer_score": 0.47948568165302274, "sibling_qid": "MUM-2026-01-0701-Q008", "sibling_text": "oil mist detector omd working", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "The OMD alarm sounds on your watch. What are your actions, the checks and crankcase inspection that follow, and what are the alarm levels?", "cross_family": false }, { "answer_id": "OMD-002", "score": 0.6337299942970276, "sibling_score": 0.6337299942970276, "answer_score": null, "sibling_qid": "MUM-2023-01-0081-Q005", "sibling_text": "omd working and how to find if it s actual or fault alarm", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you verify whether an OMD alarm is a true alarm or a fault?", "cross_family": false }, { "answer_id": "CCE-322-006", "score": 0.6240620613098145, "sibling_score": 0.6240620613098145, "answer_score": 0.5165102362632751, "sibling_qid": "MUM-2026-06-3586-Q005", "sibling_text": "me oil mist detector faulty what all checks", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Testing the OMD alarm; alarm and shutdown values", "cross_family": true } ] }, { "qid": "MUM-2025-08-0423-Q001", "text": "Type of vessels sailed", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-08-0423", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8299561142921448, "sibling_score": 0.8299561142921448, "answer_score": null, "sibling_qid": "CHE-2026-02-0481-Q001", "sibling_text": "type of vessels sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7674170136451721, "sibling_score": 0.7674170136451721, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7585368752479553, "sibling_score": 0.7585368752479553, "answer_score": null, "sibling_qid": "CHE-2026-03-0255-Q001", "sibling_text": "type of vessel and engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "MUM-2025-08-0423-Q002", "text": "Total rank experience", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-08-0423", "tray": "new", "candidates": [ { "answer_id": "A6-NSEC-003", "score": 0.4206935465335846, "sibling_score": 0.4206935465335846, "answer_score": null, "sibling_qid": "MUM-2023-03-2727-Q011", "sibling_text": "tier values", "sibling_family": "MARPOL - 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Explain the basic concept.", "cross_family": false }, { "answer_id": "FSE-P02-001", "score": 0.5350884020328521, "sibling_score": null, "answer_score": 0.5350884020328521, "sibling_qid": "", "sibling_text": "reducing and correcting free surface effect in practice fse is a virtual rise of g i e a virtual loss of gm m is fixed by the waterplane and does not move free surface correction rise of g i tank w in metres the liquid density is in it not just geometry", "sibling_family": "", "via": "answer_title", "answer_title": "Reducing and correcting free surface effect in practice", "cross_family": false } ] }, { "qid": "MUM-2025-08-0427-Q005", "text": "Admiralty coefficient", "family": "", "subtopic": "Resistance & Propulsion", "tid": "MUM-2025-08-0427", "tray": "review", "candidates": [ { "answer_id": "RES-PROP-P02-002", "score": 0.7695232033729553, "sibling_score": 0.7695232033729553, "answer_score": 0.5543988645076752, "sibling_qid": "KOL-2020-01-0381-Q003", "sibling_text": "admiralty coefficient", "sibling_family": "", "via": "sibling", "answer_title": "Admiralty coefficient — formula, significance and power estimation", "cross_family": false }, { "answer_id": "RES-PROP-P01-004", "score": 0.6983861327171326, "sibling_score": 0.6983861327171326, "answer_score": null, "sibling_qid": "KOL-2019-11-0355-Q003", "sibling_text": "admarility coefficient where used", "sibling_family": "", "via": "sibling", "answer_title": "From resistance to power: effective power, propulsive coefficient, the Admiralty coefficient and model testing", "cross_family": false }, { "answer_id": "RES-PROP-P02-001", "score": 0.6805785298347473, "sibling_score": 0.6805785298347473, "answer_score": null, "sibling_qid": "KOL-2023-12-0788-Q003", "sibling_text": "admiralty coefficient why you need so answerd for power assumption of similar ships without model experiment he asked why you need to find so", "sibling_family": "", "via": "sibling", "answer_title": "Ship model and towing tests — purpose, scaling and resistance prediction", "cross_family": false } ] }, { "qid": "MUM-2025-08-0430-Q004", "text": "latest regulation about lifeboat Results-pass(coc)", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Lifeboat / Davit / LSA", "tid": "MUM-2025-08-0430", "tray": "new", "candidates": [ { "answer_id": "LSA-LB-A-011", "score": 0.64454185962677, "sibling_score": 0.64454185962677, "answer_score": 0.46943785548210143, "sibling_qid": "KOC-2025-12-0747-Q010", "sibling_text": "lifeboat latest amendments", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Latest amendments to lifeboat regulations", "cross_family": false }, { "answer_id": "LB-DAVIT-HRU-002", "score": 0.5932086110115051, "sibling_score": 0.5932086110115051, "answer_score": 0.4714587390422821, "sibling_qid": "MUM-2026-05-3214-Q006", "sibling_text": "lifeboat regulation", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat regulations and the latest amendments", "cross_family": false }, { "answer_id": "DRG-B-006", "score": 0.5906257033348083, "sibling_score": 0.5906257033348083, "answer_score": null, "sibling_qid": "KOL-2026-05-4230-Q006", "sibling_text": "life boat davit falls change requirements", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Falls — maintenance, end-for-ending and renewal", "cross_family": false } ] }, { "qid": "MUM-2025-08-1151-Q002", "text": "Ship sailed", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-08-1151", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8449568152427673, "sibling_score": 0.8449568152427673, "answer_score": null, "sibling_qid": "MUM-2026-04-1319-Q001", "sibling_text": "ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.6832410097122192, "sibling_score": 0.6832410097122192, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.6813992261886597, "sibling_score": 0.6813992261886597, "answer_score": null, "sibling_qid": "MUM-2026-02-1280-Q001", "sibling_text": "type of ship done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false } ] }, { "qid": "MUM-2025-08-1151-Q010", "text": "Rudder breached how to repair", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "MUM-2025-08-1151", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.7540319561958313, "sibling_score": 0.7540319561958313, "answer_score": null, "sibling_qid": "MUM-2026-05-3161-Q003", "sibling_text": "how to repair breached rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "PRE-TEN-001", "score": 0.5855840444564819, "sibling_score": 0.5855840444564819, "answer_score": null, "sibling_qid": "MUM-2026-09-3907-Q001", "sibling_text": "rudder carrier bearing replacement in port", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Pre-stressing and pre-tensioning in main-engine bolting", "cross_family": false }, { "answer_id": "WBS-C-006", "score": 0.5034206479787826, "sibling_score": null, "answer_score": 0.5034206479787826, "sibling_qid": "", "sibling_text": "propeller and rudder repair grading the damage and the class approved route grade the damage first minor nicks erosion bent tip vs crack major minor grind and blend out the notch restore a fair section keep balance small cold repair epoxy fillers for minor surface defects only", "sibling_family": "", "via": "answer_title", "answer_title": "Propeller and rudder repair — grading the damage and the Class-approved route", "cross_family": false } ] }, { "qid": "MUM-2025-08-1151-Q011", "text": "Fd fan balancing", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Vibration / Balancing", "tid": "MUM-2025-08-1151", "tray": "new", "candidates": [ { "answer_id": "VIB-BAL-C-FINAL-1-003", "score": 0.5335197448730469, "sibling_score": 0.5335197448730469, "answer_score": null, "sibling_qid": "MUM-2026-07-3766-Q002", "sibling_text": "static balancing", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Static and Dynamic Balancing of the Crankshaft / Shaft", "cross_family": false }, { "answer_id": "PERF-470-005", "score": 0.5128227472305298, "sibling_score": 0.5128227472305298, "answer_score": 0.30502417385578157, "sibling_qid": "KOL-2018-06-1381-Q001", "sibling_text": "how load balancing is done full procedure", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main-engine power balancing — procedure", "cross_family": false }, { "answer_id": "VIB-BAL-C-FINAL-1-002", "score": 0.497871994972229, "sibling_score": 0.497871994972229, "answer_score": 0.3056315079331398, "sibling_qid": "MUM-2022-11-2715-Q016", "sibling_text": "power balancing", "sibling_family": "2-Stroke - 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Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true }, { "answer_id": "ENG-NOM-004", "score": 0.703366756439209, "sibling_score": 0.703366756439209, "answer_score": null, "sibling_qid": "MUM-2026-06-3390-Q002", "sibling_text": "each nomenclature meaning", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Decode every letter and number: 6S60MC-C and 6S70ME-C", "cross_family": true }, { "answer_id": "ENG-NOM-001", "score": 0.7002842426300049, "sibling_score": 0.7002842426300049, "answer_score": 0.36387931704521176, "sibling_qid": "MUM-2026-06-3408-Q001", "sibling_text": "me ae nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Nomenclature of ME and AE (asked together)", "cross_family": true } ] }, { "qid": "MUM-2025-08-1162-Q003", "text": "What is Mark number", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-08-1162", "tray": "review", "candidates": [ { "answer_id": "ENG-NOM-003", "score": 0.6639649271965027, "sibling_score": 0.6639649271965027, "answer_score": null, "sibling_qid": "KOC-2026-03-1116-Q004", "sibling_text": "what does the mark number signifies", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Stroke letters S/L/K/G, stroke-bore ratio, mark and series number", "cross_family": true }, { "answer_id": "MEB-MEC-P03-001", "score": 0.49223262071609497, "sibling_score": 0.49223262071609497, "answer_score": null, "sibling_qid": "CHE-2025-09-0178-Q007", "sibling_text": "mark 9 significance in me c", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "ME-B vs ME-C — the core difference", "cross_family": true }, { "answer_id": "BUNK-SAMP-004", "score": 0.4752327501773834, "sibling_score": 0.4752327501773834, "answer_score": null, "sibling_qid": "KOC-2025-02-2060-Q024", "sibling_text": "marking", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Sample container, material, quantity, marking and bottles", "cross_family": true } ] }, { "qid": "MUM-2025-08-1162-Q013", "text": "Holding Down Bolts & Side choke explain", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Holding Down Bolts", "tid": "MUM-2025-08-1162", "tray": "new", "candidates": [ { "answer_id": "CHK-RM-004", "score": 0.6181451678276062, "sibling_score": 0.6181451678276062, "answer_score": 0.44998614192008973, "sibling_qid": "KOL-2024-12-4043-Q006", "sibling_text": "end chock why longer bolts uses", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Function of side chocks and end chocks; why do end chocks have longer bolts; and what is meant by lateral movement of the main engine?", "cross_family": false }, { "answer_id": "CHK-330-005", "score": 0.5624740719795227, "sibling_score": 0.5624740719795227, "answer_score": 0.45671401023864744, "sibling_qid": "KOC-2022-01-0955-Q002", "sibling_text": "chocks reasons for use how it is made holding down bolts check", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Chocks and holding-down bolts — interface, and the checks you perform", "cross_family": false }, { "answer_id": "CHK-330-003", "score": 0.5532604455947876, "sibling_score": 0.5532604455947876, "answer_score": null, "sibling_qid": "KOC-2022-02-0958-Q005", "sibling_text": "draw and explain end chokes draw and explain side chokes", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "End chocks and side chocks — sketch and explanation", "cross_family": false } ] }, { "qid": "MUM-2025-08-1168-Q001S2", "text": "Tail shaft monitoring system ?", "family": "", "subtopic": "", "tid": "MUM-2025-08-1168", "tray": "review", "candidates": [ { "answer_id": "STERN-TUBE-TAIL-SHAFT-001", "score": 0.7518724203109741, "sibling_score": 0.7518724203109741, "answer_score": null, "sibling_qid": "MUM-2026-09-3956-Q005", "sibling_text": "tail shaft monitoring", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "STERN-TUBE-TAIL-SHAFT-003", "score": 0.7512526512145996, "sibling_score": 0.7512526512145996, "answer_score": 0.4997075378894806, "sibling_qid": "KOC-2024-09-1867-Q005", "sibling_text": "tail shaft monitoring", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "STT-BRG-001", "score": 0.7167205810546875, "sibling_score": 0.7167205810546875, "answer_score": null, "sibling_qid": "KOL-2018-11-1430-Q010", "sibling_text": "condition monitoring of tail shaft system", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "8. Tail shaft — survey, condition monitoring, wet test, removal checks and propeller overhang", "cross_family": false } ] }, { "qid": "MUM-2025-08-1168-Q001S3", "text": "Top bracing ?", "family": "", "subtopic": "", "tid": "MUM-2025-08-1168", "tray": "review", "candidates": [ { "answer_id": "TOP-BRC-001", "score": 0.7317456007003784, "sibling_score": 0.7317456007003784, "answer_score": 0.42549407482147217, "sibling_qid": "KOC-2021-07-0920-Q010", "sibling_text": "top bracing function", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "1. What top bracing is, where it is fitted, and why", "cross_family": false }, { "answer_id": "TOP-BRC-003", "score": 0.7019271850585938, "sibling_score": 0.7019271850585938, "answer_score": null, "sibling_qid": "KOL-2022-07-3552-Q001", "sibling_text": "top bracing function and test", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "3. Checks, testing, maintenance, overhaul and malfunction", "cross_family": false }, { "answer_id": "TOP-BRC-002", "score": 0.651540994644165, "sibling_score": 0.651540994644165, "answer_score": null, "sibling_qid": "CHE-2025-11-0456-Q005", "sibling_text": "top bracing function and types", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "2. Types and working — mechanical (friction) and hydraulic", "cross_family": false } ] }, { "qid": "MUM-2025-08-1168-Q001S4", "text": "Stern tube chrome liner ( damage ) ?", "family": "", "subtopic": "", "tid": "MUM-2025-08-1168", "tray": "review", "candidates": [ { "answer_id": "STERN-P03-001", "score": 0.6758821606636047, "sibling_score": 0.6758821606636047, "answer_score": 0.47107521295547483, "sibling_qid": "KOL-2019-02-3212-Q003", "sibling_text": "crome stell liner of stern tube removal and inspection", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Chrome / shaft liner: fitting, removal, grooving & wastage, and repair options", "cross_family": false }, { "answer_id": "STT-BRG-004", "score": 0.6361861824989319, "sibling_score": 0.6361861824989319, "answer_score": 0.4491106182336807, "sibling_qid": "KOC-2026-08-2158-Q006", "sibling_text": "stern tube chrome liner diagram and sealing arrangement explain", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "3. Chrome liner and seal securing — fitting, retention and repair", "cross_family": false }, { "answer_id": "STT-BRG-006", "score": 0.6260195374488831, "sibling_score": 0.6260195374488831, "answer_score": null, "sibling_qid": "KOL-2021-11-3488-Q002", "sibling_text": "stern tube seal oil leak girter spring chrome liner", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "5. Seal leakage — corrective action at sea and in dry dock", "cross_family": false } ] }, { "qid": "MUM-2025-08-1168-Q001S5", "text": "Cast iron welding ?", "family": "Workshop & Welding", "subtopic": "Cast Iron Welding", "tid": "MUM-2025-08-1168", "tray": "review", "candidates": [ { "answer_id": "WELD-B-001", "score": 0.8306757807731628, "sibling_score": 0.8306757807731628, "answer_score": 0.5478373259305954, "sibling_qid": "MUM-2026-05-3211-Q005", "sibling_text": "cast iron welding", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding & crack-repair of aluminium and cast iron, including metal stitching", "cross_family": false }, { "answer_id": "LH-ELEC-006", "score": 0.5098633795976638, "sibling_score": null, "answer_score": 0.5098633795976638, "sibling_qid": "", "sibling_text": "6 how would you approach a cast iron valve repair when the examiner probes welding and low hydrogen electrodes first response replace or fit a sound same size valve a welded cast iron repair is a stop gap not equal to new if welding cast iron not a plain mild steel low hydrogen rod the high carbon makes a hard brittle cracking weld", "sibling_family": "", "via": "answer_title", "answer_title": "6. How would you approach a cast-iron valve repair when the examiner probes welding and low-hydrogen electrodes?", "cross_family": false }, { "answer_id": "METAL-LOCK-001", "score": 0.49348793029785154, "sibling_score": null, "answer_score": 0.49348793029785154, "sibling_qid": "", "sibling_text": "what is metal locking stitching why use it materials benefits cold process zero heat applied at any stage for brittle cast iron and other castings where welding risks further cracking or a brittle heat affected zone", "sibling_family": "", "via": "answer_title", "answer_title": "What is metal locking / stitching, why use it, materials & benefits", "cross_family": false } ] }, { "qid": "MUM-2025-08-1168-Q001S6", "text": "How to change exhaust bellow in Main engine?", "family": "", "subtopic": "", "tid": "MUM-2025-08-1168", "tray": "new", "candidates": [ { "answer_id": "MCC-MEB-P02-003", "score": 0.6226840615272522, "sibling_score": 0.6226840615272522, "answer_score": null, "sibling_qid": "KOL-2025-06-4057-Q002", "sibling_text": "what was your previous engine what changes have been done from mc to me engines exhaust valve bellow material how is it joined to exhaust manifold", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Conventional MC / MC-C versus electronic ME — the practical operating differences", "cross_family": false }, { "answer_id": "EXV-P02-001", "score": 0.6124439239501953, "sibling_score": 0.6124439239501953, "answer_score": 0.5045028299093246, "sibling_qid": "KOC-2023-01-1801-Q001", "sibling_text": "1 exhaust vv overhaul", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve overhaul & dismantling — procedure and precautions", "cross_family": false }, { "answer_id": "EXHV-297-004", "score": 0.5953701734542847, "sibling_score": 0.5953701734542847, "answer_score": null, "sibling_qid": "MUM-2025-06-1132-Q011", "sibling_text": "exhaust valve overhaul", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Checks, tests & overhaul points — before and after fitting", "cross_family": false } ] }, { "qid": "MUM-2025-08-1168-Q001S7", "text": "Exhaust manifold had hole u r in narrow Passage what action ?", "family": "", "subtopic": "", "tid": "MUM-2025-08-1168", "tray": "new", "candidates": [ { "answer_id": "SCAV-323-P02-001", "score": 0.6008561849594116, "sibling_score": 0.6008561849594116, "answer_score": null, "sibling_qid": "KOL-2018-01-3113-Q004", "sibling_text": "scavange manifold crack how to finf and what to do", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Scavenging and its operational significance", "cross_family": false }, { "answer_id": "UPT-FIRE-005", "score": 0.5972524881362915, "sibling_score": 0.5972524881362915, "answer_score": null, "sibling_qid": "KOC-2022-12-0114-Q010", "sibling_text": "ae exhaust manifold fire actions", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Fire in the generator engine exhaust trunking or the AE exhaust manifold — your actions", "cross_family": false }, { "answer_id": "EXHV-297-007", "score": 0.5968353152275085, "sibling_score": 0.5968353152275085, "answer_score": null, "sibling_qid": "MUM-2026-05-3153-Q009", "sibling_text": "have you ever went inside exhaust manifold then he mentioned its not single piece and how all units exhaust manifold is connected together", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust manifold / gas receiver — construction, joints, inspection & temperature locations", "cross_family": false } ] }, { "qid": "MUM-2025-08-1168-Q001S8", "text": "Particle test ?", "family": "", "subtopic": "", "tid": "MUM-2025-08-1168", "tray": "new", "candidates": [ { "answer_id": "NDT-METH-P02-001", "score": 0.53378826379776, "sibling_score": 0.53378826379776, "answer_score": null, "sibling_qid": "KOL-2021-08-3453-Q005", "sibling_text": "magnetic particle test i will post later in details", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "1. Magnetic Particle Inspection (MPI / MPT)", "cross_family": false }, { "answer_id": "PI-211-002", "score": 0.48528826236724854, "sibling_score": 0.48528826236724854, "answer_score": 0.2840245500206947, "sibling_qid": "MUM-2022-04-1328-Q004", "sibling_text": "pi test", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "How the PI test is carried out — equipment, procedure, leakage-current behaviour", "cross_family": false }, { "answer_id": "PI-211-004", "score": 0.47164657711982727, "sibling_score": 0.47164657711982727, "answer_score": null, "sibling_qid": "KOL-2023-06-2660-Q007", "sibling_text": "pi test and dar and test values", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "PI and DAR — how they relate, their purpose, and acceptable values", "cross_family": false } ] }, { "qid": "MUM-2025-08-1175-Q001", "text": "Type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-08-1175", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8360850214958191, "sibling_score": 0.8360850214958191, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8013965487480164, "sibling_score": 0.8013965487480164, "answer_score": 0.5467735856771468, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.799839973449707, "sibling_score": 0.799839973449707, "answer_score": 0.5213733673095703, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2025-08-1175-Q002", "text": "Engine", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2025-08-1175", "tray": "review", "candidates": [ { "answer_id": "MIP-264-003", "score": 0.8008667826652527, "sibling_score": 0.8008667826652527, "answer_score": null, "sibling_qid": "MUM-2026-01-1248-Q002", "sibling_text": "engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Calculate engine power: IHP and BHP, and where each is measured", "cross_family": false }, { "answer_id": "ETP-344-P03-001", "score": 0.7167393565177917, "sibling_score": 0.7167393565177917, "answer_score": null, "sibling_qid": "KOL-2026-03-2048-Q001", "sibling_text": "type of engine done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "MCC-MEB-P02-003", "score": 0.7008637189865112, "sibling_score": 0.7008637189865112, "answer_score": null, "sibling_qid": "MUM-2024-07-1084-Q004", "sibling_text": "me engine tha", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Conventional MC / MC-C versus electronic ME — the practical operating differences", "cross_family": true } ] }, { "qid": "MUM-2025-08-1177-Q001", "text": "Type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-08-1177", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8360850214958191, "sibling_score": 0.8360850214958191, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8013965487480164, "sibling_score": 0.8013965487480164, "answer_score": 0.5467735856771468, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.799839973449707, "sibling_score": 0.799839973449707, "answer_score": 0.5213733673095703, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2025-08-1177-Q002", "text": "Type of ME and AE", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2025-08-1177", "tray": "new", "candidates": [ { "answer_id": "AEME-DIFF-001", "score": 0.624154806137085, "sibling_score": 0.624154806137085, "answer_score": null, "sibling_qid": "MUM-2025-05-2295-Q004", "sibling_text": "types of me and ae worked on", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": true }, { "answer_id": "ENG-NOM-001", "score": 0.5554804801940918, "sibling_score": 0.5554804801940918, "answer_score": 0.27307911068201063, "sibling_qid": "NOI-2026-09-0008-Q002", "sibling_text": "me and ae type and nomenclature", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Nomenclature of ME and AE (asked together)", "cross_family": true }, { "answer_id": "ENG-NOM-005", "score": 0.5333009958267212, "sibling_score": 0.5333009958267212, "answer_score": null, "sibling_qid": "MUM-2026-09-3915-Q001", "sibling_text": "type of engine me and ae", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false } ] }, { "qid": "MUM-2025-08-1177-Q003", "text": "Shape of con rod in AE? Why?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Connecting Rod & Bolts", "tid": "MUM-2025-08-1177", "tray": "new", "candidates": [ { "answer_id": "AECR-651-001", "score": 0.5924658179283142, "sibling_score": 0.5924658179283142, "answer_score": null, "sibling_qid": "MUM-2022-12-1037-Q023", "sibling_text": "checks on con rod of ae", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What checks do you carry out on the connecting rod of an AE / DG — inspection, overhaul checks and the trueness check?", "cross_family": false }, { "answer_id": "AECR-651-002", "score": 0.5799348950386047, "sibling_score": 0.5799348950386047, "answer_score": null, "sibling_qid": "MUM-2025-09-2421-Q005", "sibling_text": "ae con rod big end ovality how to take and max value", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you take the ovality of the AE big end in a 4-stroke, and what are the ovality limits and maximum value?", "cross_family": false }, { "answer_id": "AE-CRP-004", "score": 0.5659206509590149, "sibling_score": 0.5659206509590149, "answer_score": 0.3560867205262184, "sibling_qid": "CHE-2026-08-3865-Q004", "sibling_text": "ae con rod ovality", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE connecting-rod inspection — ovality, trueness, serrations, action if out of limit", "cross_family": true } ] }, { "qid": "MUM-2025-08-1573-Q003", "text": "Crawling and clogging", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Faraday Law", "tid": "MUM-2025-08-1573", "tray": "review", "candidates": [ { "answer_id": "IM-GW-C-001", "score": 0.7592675685882568, "sibling_score": 0.7592675685882568, "answer_score": null, "sibling_qid": "MUM-2026-01-1876-Q003", "sibling_text": "clogging and crawling", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Cogging, crawling and harmonic effects in induction motors", "cross_family": false }, { "answer_id": "SEA-CHEST-004", "score": 0.32546109855175015, "sibling_score": null, "answer_score": 0.32546109855175015, "sibling_qid": "", "sibling_text": "action if the grating or suction is blocked during sailing", "sibling_family": "", "via": "answer_title", "answer_title": "Action if the grating or suction is blocked during sailing", "cross_family": false }, { "answer_id": "PURIF-BOWL-P02-001", "score": 0.32293486744165417, "sibling_score": null, "answer_score": 0.32293486744165417, "sibling_qid": "", "sibling_text": "bowl opening closing manual desludging mechanism manual operation failure causes closed operating water under the sliding bowl bottom holding it up against the seal ring sludge ports covered make up closing water keeps the seal desludge drain that operating water opening water via the operating slide valve plugs faster than make up sliding bowl bottom drops ports open sludge ejected closing water ", "sibling_family": "", "via": "answer_title", "answer_title": "Bowl opening, closing & manual desludging — mechanism, manual operation, failure causes", "cross_family": false } ] }, { "qid": "MUM-2025-08-1573-Q009", "text": "2 ae running in parallel and 1 ae lost excitation... reason and x questions (he wants to hear what is happening electrically step by step)", "family": "Electrical - Generator & Alternator", "subtopic": "Motoring Effect", "tid": "MUM-2025-08-1573", "tray": "review", "candidates": [ { "answer_id": "AVR-EXC-G-003", "score": 0.729006826877594, "sibling_score": 0.729006826877594, "answer_score": 0.5200215011835098, "sibling_qid": "MUM-2026-09-3866-Q011", "sibling_text": "two gen running in parallel one lost excitation what will happen", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Loss or reduction of excitation: effect and action", "cross_family": false }, { "answer_id": "SYNC-D-001", "score": 0.7096084952354431, "sibling_score": 0.7096084952354431, "answer_score": null, "sibling_qid": "MUM-2025-10-1738-Q005", "sibling_text": "parallelling 2 a e s incorrect synchronization closed breaker at 6 o clock sequence of events 5 asked abt some electrode didn t get what electrode where do we use onboard", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Closing the breaker out of phase — wrong-synchronizing consequences", "cross_family": false }, { "answer_id": "GEN-LSI-B-001", "score": 0.6667675375938416, "sibling_score": 0.6667675375938416, "answer_score": 0.46648303270339964, "sibling_qid": "KOL-2019-03-2269-Q002", "sibling_text": "two alternators running in parallel sharing equal kw load one generator excitation drop what happens cross question on pf", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01. Two alternators in parallel — same kW but different current and power factor: cause and correction", "cross_family": false } ] }, { "qid": "MUM-2025-08-1576-Q002", "text": "Frequency less from shore", "family": "Electrical - Generator & Alternator", "subtopic": "Frequency", "tid": "MUM-2025-08-1576", "tray": "review", "candidates": [ { "answer_id": "SHORE-CONN-P04-001", "score": 0.7326076030731201, "sibling_score": 0.7326076030731201, "answer_score": 0.3957290560007095, "sibling_qid": "MUM-2026-04-2107-Q004", "sibling_text": "if shore supply less frequency", "sibling_family": "", "via": "sibling", "answer_title": "Accepting shore supply at a different frequency or voltage (incl. dry dock)", "cross_family": false }, { "answer_id": "BWMS-STD-B-001", "score": 0.5663283467292786, "sibling_score": 0.5663283467292786, "answer_score": null, "sibling_qid": "KOL-2022-12-0708-Q004", "sibling_text": "why water exchanged 200 nm away from shore", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "D-1 Ballast Water Exchange Standard & the exchange methods", "cross_family": true }, { "answer_id": "SHORE-CONN-P03-001", "score": 0.5480188131332397, "sibling_score": 0.5480188131332397, "answer_score": null, "sibling_qid": "KOL-2025-08-2845-Q002", "sibling_text": "checks for shore connection", "sibling_family": "", "via": "sibling", "answer_title": "Taking electrical shore power in dry dock — preparation, checks and procedure", "cross_family": false } ] }, { "qid": "MUM-2025-08-1577-Q003S5", "text": "Your junior told no valtage showing after generator start", "family": "Electrical - Generator & Alternator", "subtopic": "Synchronization", "tid": "MUM-2025-08-1577", "tray": "review", "candidates": [ { "answer_id": "NO-VOLT-001", "score": 0.9292312264442444, "sibling_score": 0.9292312264442444, "answer_score": 0.5903854161500931, "sibling_qid": "MUM-2026-06-3484-Q007", "sibling_text": "your junior told no voltage showing after generator start", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "The 3/E reports the generator has started but no voltage is showing — reasons, and your actions as 2/E", "cross_family": false }, { "answer_id": "RES-MAG-002", "score": 0.769321858882904, "sibling_score": 0.769321858882904, "answer_score": 0.5965699136257171, "sibling_qid": "KOL-2025-08-2843-Q011", "sibling_text": "generator started voltage not coming trimmer circuit", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Generator started but no voltage developing — reasons, and your action as Second Engineer", "cross_family": false }, { "answer_id": "NO-VOLT-004", "score": 0.5586879223585128, "sibling_score": null, "answer_score": 0.5586879223585128, "sibling_qid": "", "sibling_text": "the generator is turning the voltmeter reads zero and the meters were recently calibrated how do you investigate and how do you remove and test the voltmeter calibrated is not the same as working a certificate covers accuracy on a date it does not cover a blown fuse a dirty selector contact or a failure since prove the machine first the maker s own instruction is to use a single independent instru", "sibling_family": "", "via": "answer_title", "answer_title": "The generator is turning, the voltmeter reads zero, and the meters were recently calibrated — how do you investigate, and how do you remove and test the voltmeter?", "cross_family": false } ] }, { "qid": "MUM-2025-08-1577-Q003S6", "text": "Residual magnetism", "family": "Electrical - Generator & Alternator", "subtopic": "Residual Magnetism / Flashing", "tid": "MUM-2025-08-1577", "tray": "review", "candidates": [ { "answer_id": "RES-MAG-001", "score": 0.803888738155365, "sibling_score": 0.803888738155365, "answer_score": 0.5072507411241531, "sibling_qid": "KOC-2026-02-0830-Q002", "sibling_text": "residual magnetism", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Residual magnetism — what it is, where it is stored, how it is lost and how you restore it", "cross_family": false }, { "answer_id": "AR-263-001", "score": 0.35104003399610517, "sibling_score": null, "answer_score": 0.35104003399610517, "sibling_qid": "", "sibling_text": "what is armature reaction and where is it found armature mmf from load current acting on the main field mmf no load current no reaction with brushes on neutral the dc machine effect is mainly cross magnetizing pole tip saturation still gives a small net flux weakening a true demagnetizing component comes in only when the brushes are shifted off neutral", "sibling_family": "", "via": "answer_title", "answer_title": "What is armature reaction, and where is it found?", "cross_family": false }, { "answer_id": "XFMR-THY-G-004", "score": 0.34617692828178404, "sibling_score": null, "answer_score": 0.34617692828178404, "sibling_qid": "", "sibling_text": "4 transformer leakage flux and magnetic reluctance", "sibling_family": "", "via": "answer_title", "answer_title": "4. Transformer leakage flux and magnetic reluctance", "cross_family": false } ] }, { "qid": "MUM-2025-08-1577-Q003S7", "text": "Flashing of generator", "family": "Electrical - Generator & Alternator", "subtopic": "Residual Magnetism / Flashing", "tid": "MUM-2025-08-1577", "tray": "review", "candidates": [ { "answer_id": "RES-MAG-004", "score": 0.7654192447662354, "sibling_score": 0.7654192447662354, "answer_score": 0.32263562083244324, "sibling_qid": "MUM-2026-06-3484-Q009", "sibling_text": "flashing of generator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Field flashing — the procedure, where the battery connects, which terminal, and the precautions", "cross_family": false }, { "answer_id": "SCR-306-A-001", "score": 0.6010349988937378, "sibling_score": 0.6010349988937378, "answer_score": null, "sibling_qid": "MUM-2026-01-1912-Q002", "sibling_text": "how to flash a generator", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What an SCR is and how it works", "cross_family": true }, { "answer_id": "RES-MAG-002", "score": 0.5824136137962341, "sibling_score": 0.5824136137962341, "answer_score": 0.32103998512029647, "sibling_qid": "MUM-2025-08-1584-Q001S5", "sibling_text": "gen not producing voltage flashing up of gen", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Generator started but no voltage developing — reasons, and your action as Second Engineer", "cross_family": false } ] }, { "qid": "MUM-2025-08-1578-Q016", "text": "Slip rings", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator / Generator", "tid": "MUM-2025-08-1578", "tray": "review", "candidates": [ { "answer_id": "COMM-DC-005", "score": 0.7021456956863403, "sibling_score": 0.7021456956863403, "answer_score": 0.46465487480163575, "sibling_qid": "MUM-2026-06-3613-Q004", "sibling_text": "slip rings", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Differentiate a slip ring from a split ring (commutator).", "cross_family": false }, { "answer_id": "ROT-STAT-B-003", "score": 0.5747852921485901, "sibling_score": 0.5747852921485901, "answer_score": 0.45061939060688017, "sibling_qid": "CHE-2026-04-0383-Q004", "sibling_text": "what is slip ring why it s provided", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "The wound / slip-ring rotor — construction, use and slip-ring problems", "cross_family": true }, { "answer_id": "ROT-STAT-B-002", "score": 0.5622531771659851, "sibling_score": 0.5622531771659851, "answer_score": 0.3882838115096092, "sibling_qid": "KOC-2026-03-1723-Q005", "sibling_text": "slip ring squirrel cage constructional differences", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Squirrel cage vs wound / slip-ring — differences, advantages, disadvantages", "cross_family": true } ] }, { "qid": "MUM-2025-08-1582-Q001", "text": "You have removed MCB from panel not how will you rest it. 2 ae running in parallel and 1 ae lost excitation... reason and x questions (he wants to hear what is happening electrically step by step) Polarisation index and why it is used why not other method. IR testing of motor... procedure...Max voltage of megger for HV system", "family": "Electrical - Generator & Alternator", "subtopic": "Motoring Effect", "tid": "MUM-2025-08-1582", "tray": "review", "candidates": [ { "answer_id": "RPT-C-002", "score": 0.7421801090240479, "sibling_score": 0.7421801090240479, "answer_score": 0.540228208899498, "sibling_qid": "CHE-2026-03-0349-Q006", "sibling_text": "how to test low voltage trip patro sir transformer working and diagram distance between windings purpose will emg generator run in parallel with main generator cross how to check ir for single conductor purpose of insulation draw explain what happen if leakage current increase", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Testing & trying out the reverse power trip — onboard, at survey, and when it fails", "cross_family": false }, { "answer_id": "RES-MAG-002", "score": 0.7334257960319519, "sibling_score": 0.7334257960319519, "answer_score": 0.5469495922327041, "sibling_qid": "MUM-2024-09-2771-Q008", "sibling_text": "ae running but voltage is not showing what will be you action questions on residual megnetism which place and how", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Generator started but no voltage developing — reasons, and your action as Second Engineer", "cross_family": false }, { "answer_id": "AVR-EXC-G-003", "score": 0.7208783030509949, "sibling_score": 0.7208783030509949, "answer_score": 0.5588277041912079, "sibling_qid": "MUM-2026-09-3866-Q011", "sibling_text": "two gen running in parallel one lost excitation what will happen", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Loss or reduction of excitation: effect and action", "cross_family": false } ] }, { "qid": "MUM-2025-08-1583-Q001", "text": "Wrong way alarm", "family": "", "subtopic": "Earth-Fault Detection (Lamp / Insulation Alarm)", "tid": "MUM-2025-08-1583", "tray": "new", "candidates": [ { "answer_id": "IGAT-583-001", "score": 0.5385019779205322, "sibling_score": 0.5385019779205322, "answer_score": null, "sibling_qid": "KOL-2025-08-1016-Q005", "sibling_text": "ig working alarm trips", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "State all the alarms, trips and safety cut-outs provided on a tanker inert gas (IG) system.", "cross_family": false }, { "answer_id": "SG-055-B-002", "score": 0.5185845494270325, "sibling_score": 0.5185845494270325, "answer_score": null, "sibling_qid": "MUM-2026-05-3242-Q004", "sibling_text": "steering gear alarms", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Steering-gear alarms, trips and electrical / hydraulic safeties", "cross_family": false }, { "answer_id": "OMD-001", "score": 0.5065224170684814, "sibling_score": 0.5065224170684814, "answer_score": null, "sibling_qid": "MUM-2026-03-2058-Q009", "sibling_text": "if omd alarm sounds your action", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "The OMD alarm sounds on your watch. What are your actions, the checks and crankcase inspection that follow, and what are the alarm levels?", "cross_family": false } ] }, { "qid": "MUM-2025-08-1583-Q014", "text": "Switchboard safety. How many terminals are there in a motor. How to connect them in start and delta. How reverse power trip works. Pid controller and its working. Pt & Ct working.", "family": "Electrical - Motors & Starters", "subtopic": "Star-Delta Starter", "tid": "MUM-2025-08-1583", "tray": "review", "candidates": [ { "answer_id": "REV-MOT-BF67-001", "score": 0.7846816182136536, "sibling_score": 0.7846816182136536, "answer_score": null, "sibling_qid": "MUM-2026-04-2123-Q003", "sibling_text": "suddenly you get low insulation alarm from deck machinery what is your action suppose there are 15 machineries on deck how will find out switchboard safety how many terminals are there in a motor how to connect them in start and delta how reverse power trip works pid controller and its working", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "How do you reverse a single-phase induction motor — what is the wiring connection?", "cross_family": false }, { "answer_id": "TG-MOTOR-005", "score": 0.730984628200531, "sibling_score": 0.730984628200531, "answer_score": 0.5527790874242783, "sibling_qid": "KOC-2025-01-1476-Q001", "sibling_text": "single phasing indications for purifier motor engine room turning gear circuit diagram turning gear starter mcb vs mccb thermistor vs thermocouple types of starter reverse power trip working and how it s carried out internal", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw the turning gear circuit diagram and explain the starter.", "cross_family": false }, { "answer_id": "CONT-317-003", "score": 0.7155455946922302, "sibling_score": 0.7155455946922302, "answer_score": null, "sibling_qid": "MUM-2026-01-1899-Q004", "sibling_text": "how many terminals are there in a motor how to connect them in start and delta", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Continuity to confirm terminal identity after overhaul or rewind", "cross_family": false } ] }, { "qid": "MUM-2025-08-1583-Q016", "text": "Motor number of terminal", "family": "Electrical - Motors & Starters", "subtopic": "Motor Terminals / Connections", "tid": "MUM-2025-08-1583", "tray": "review", "candidates": [ { "answer_id": "IP-ENCL-001", "score": 0.8828830122947693, "sibling_score": 0.8828830122947693, "answer_score": null, "sibling_qid": "MUM-2026-01-1899-Q009", "sibling_text": "motor number of terminal", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "IP rating of motors — what the numbers mean", "cross_family": false }, { "answer_id": "ELECTRICAL-M-A-01", "score": 0.7232938408851624, "sibling_score": 0.7232938408851624, "answer_score": 0.5565342485904693, "sibling_qid": "MUM-2026-01-1850-Q006", "sibling_text": "frame number of motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Motor Frame Number", "cross_family": false }, { "answer_id": "CONT-317-003", "score": 0.6638373732566833, "sibling_score": 0.6638373732566833, "answer_score": null, "sibling_qid": "MUM-2024-07-1445-Q002", "sibling_text": "motor received overhaul terminal markings have gone how to identify the terminals", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Continuity to confirm terminal identity after overhaul or rewind", "cross_family": false } ] }, { "qid": "MUM-2025-08-1583-Q017", "text": "Star delta connection", "family": "Electrical - Motors & Starters", "subtopic": "Star-Delta Starter", "tid": "MUM-2025-08-1583", "tray": "review", "candidates": [ { "answer_id": "SDST-B-001", "score": 0.6770082116127014, "sibling_score": 0.6770082116127014, "answer_score": 0.33584794253110883, "sibling_qid": "MUM-2026-06-3611-Q007", "sibling_text": "star delta is not changing to delta reason", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Explain the star-delta control circuit - timer, interlocks, changeover and how the switching point is chosen.", "cross_family": false }, { "answer_id": "SDST-A-001", "score": 0.6672574281692505, "sibling_score": 0.6672574281692505, "answer_score": 0.3559638351202011, "sibling_qid": "KOC-2025-01-1468-Q011", "sibling_text": "star delta starting explanation only", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false }, { "answer_id": "IMSP-004", "score": 0.6326391100883484, "sibling_score": 0.6326391100883484, "answer_score": null, "sibling_qid": "MUM-2026-06-3528-Q005", "sibling_text": "star delta components", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Explain the star-delta starter, and what you find inside it when you open it — its components.", "cross_family": false } ] }, { "qid": "MUM-2025-08-1584-Q001S3", "text": "Humming Sound in Transformer", "family": "", "subtopic": "", "tid": "MUM-2025-08-1584", "tray": "review", "candidates": [ { "answer_id": "XFMR-THY-E-004", "score": 0.7731738090515137, "sibling_score": 0.7731738090515137, "answer_score": 0.5609437346458435, "sibling_qid": "KOL-2021-09-2491-Q005", "sibling_text": "transformer humming", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Humming and magnetostriction", "cross_family": false }, { "answer_id": "MNS-011", "score": 0.5278411269187927, "sibling_score": null, "answer_score": 0.5278411269187927, "sibling_qid": "", "sibling_text": "humming noise from a motor the reasons and what you do about it first question always is it turning that splits the fault tree in two humming and stationary single phasing locked rotor cogging or severe undervoltage", "sibling_family": "", "via": "answer_title", "answer_title": "Humming noise from a motor — the reasons, and what you do about it", "cross_family": false }, { "answer_id": "SPHS-B-003", "score": 0.46322154104709623, "sibling_score": null, "answer_score": 0.46322154104709623, "sibling_qid": "", "sibling_text": "how will you know single phasing has occurred on a running motor sound first a heavy growl or hum markedly different from the normal note this is what the examiner wants said first common and usually the earliest indication but not proof audibility depends on the enclosure the load and how loud the space is confirm electrically vibration accompanying the growl", "sibling_family": "", "via": "answer_title", "answer_title": "How will you know single phasing has occurred on a running motor?", "cross_family": false } ] }, { "qid": "MUM-2025-08-1584-Q002", "text": "4E started standby gen to take on load. He said Voltage is zero. All meters are recently calibrated. So no issue there. What are the reasons for no voltage?2. How will you flash the alternator?", "family": "Electrical - Generator & Alternator", "subtopic": "Residual Magnetism / Flashing", "tid": "MUM-2025-08-1584", "tray": "review", "candidates": [ { "answer_id": "NO-VOLT-004", "score": 0.7959917783737183, "sibling_score": 0.7959917783737183, "answer_score": 0.5633162260055542, "sibling_qid": "MUM-2025-09-1662-Q001", "sibling_text": "4e started standby gen to take on load he said voltage is zero all meters are recently calibrated so no issue there what are the reasons for no voltage", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "The generator is turning, the voltmeter reads zero, and the meters were recently calibrated — how do you investigate, and how do you remove and test the voltmeter?", "cross_family": false }, { "answer_id": "NO-VOLT-001", "score": 0.7720646262168884, "sibling_score": 0.7720646262168884, "answer_score": 0.6307174146175384, "sibling_qid": "MUM-2026-02-1981-Q002", "sibling_text": "alternator started no voltage", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "The 3/E reports the generator has started but no voltage is showing — reasons, and your actions as 2/E", "cross_family": false }, { "answer_id": "RES-MAG-002", "score": 0.7488926649093628, "sibling_score": 0.7488926649093628, "answer_score": 0.5691384762525559, "sibling_qid": "MUM-2026-01-1860-Q001S4", "sibling_text": "alternator not developing voltage cross flashing up", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Generator started but no voltage developing — reasons, and your action as Second Engineer", "cross_family": false } ] }, { "qid": "MUM-2025-08-1584-Q004S2", "text": "What is back emf?", "family": "", "subtopic": "", "tid": "MUM-2025-08-1584", "tray": "new", "candidates": [ { "answer_id": "DCMOT-A-003", "score": 0.607001543045044, "sibling_score": 0.607001543045044, "answer_score": 0.46251513361930846, "sibling_qid": "KOL-2022-01-2533-Q001", "sibling_text": "back emf", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Back EMF in a DC motor", "cross_family": false }, { "answer_id": "ALT-GEN-P04-004", "score": 0.5384895205497742, "sibling_score": 0.5384895205497742, "answer_score": 0.3706008017063141, "sibling_qid": "KOL-2025-09-2864-Q002", "sibling_text": "what is emf", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Alternator EMF generation and EMF equation", "cross_family": false }, { "answer_id": "TBR-TT-P02-001", "score": 0.537724494934082, "sibling_score": 0.537724494934082, "answer_score": null, "sibling_qid": "MUM-2026-06-3655-Q014", "sibling_text": "what is emf", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Tie rod tightening / hydraulic tensioning procedure", "cross_family": false } ] }, { "qid": "MUM-2025-08-1592-Q001", "text": "Types of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-08-1592", "tray": "review", "candidates": [ { "answer_id": "LLST-AB-001", "score": 0.8170300722122192, "sibling_score": 0.8170300722122192, "answer_score": 0.5336870372295379, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.7937093377113342, "sibling_score": 0.7937093377113342, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.7861573696136475, "sibling_score": 0.7861573696136475, "answer_score": 0.5278961479663848, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2025-08-1592-Q006", "text": "In ports why Off", "family": "", "subtopic": "", "tid": "MUM-2025-08-1592", "tray": "new", "candidates": [ { "answer_id": "MR-DS-PV-B-006", "score": 0.5632247924804688, "sibling_score": 0.5632247924804688, "answer_score": null, "sibling_qid": "MUM-2022-10-2697-Q008", "sibling_text": "why more in port", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "6. Deck isolating valve, deck relief/safety devices, and cargo-tank pressure", "cross_family": false }, { "answer_id": "ICCP-P02-003", "score": 0.5593314170837402, "sibling_score": 0.5593314170837402, "answer_score": null, "sibling_qid": "MUM-2026-02-1972-Q001", "sibling_text": "explain iccp fully why iccp is switched off in port", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP operation — port / berth practice, seawater temperature, starting & adjustment", "cross_family": false }, { "answer_id": "BULWARK-003", "score": 0.5111804008483887, "sibling_score": 0.5111804008483887, "answer_score": null, "sibling_qid": "MUM-2020-08-0003-Q006", "sibling_text": "freeing port and purpose", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "What are freeing ports in a bulwark, and what is their purpose?", "cross_family": false } ] }, { "qid": "MUM-2025-08-1595-Q002", "text": "How many alternator in your ship", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator / Generator", "tid": "MUM-2025-08-1595", "tray": "review", "candidates": [ { "answer_id": "ALT-GEN-P02-001", "score": 0.6669479608535767, "sibling_score": 0.6669479608535767, "answer_score": 0.4635143280029297, "sibling_qid": "CHE-2025-08-0292-Q007", "sibling_text": "your ship alternator spec", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Alternator/generator specifications, ratings and ship electrical supply details", "cross_family": false }, { "answer_id": "GEN-LSI-B-001", "score": 0.6336207389831543, "sibling_score": 0.6336207389831543, "answer_score": null, "sibling_qid": "MUM-2026-02-1959-Q001", "sibling_text": "how many main alternators you had and their rating", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01. Two alternators in parallel — same kW but different current and power factor: cause and correction", "cross_family": false }, { "answer_id": "LS-IMB-A-001", "score": 0.6195826530456543, "sibling_score": 0.6195826530456543, "answer_score": null, "sibling_qid": "MUM-2026-03-1994-Q003", "sibling_text": "two alternators sharing unequal load", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Two paralleled generators sharing unequal load — cause and correction", "cross_family": false } ] }, { "qid": "MUM-2025-08-1597-Q004", "text": "How Steering gear motor is different from other motors ?", "family": "Steering Gear & Hydraulics", "subtopic": "Steering Gear Motor", "tid": "MUM-2025-08-1597", "tray": "review", "candidates": [ { "answer_id": "SGM-ELEC-002", "score": 0.7212603688240051, "sibling_score": 0.7212603688240051, "answer_score": 0.5337578654289246, "sibling_qid": "MUM-2023-01-1376-Q004", "sibling_text": "steering gear motor is different from regular motors in what way", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What type of motor is the steering gear motor, how does it differ from other engine-room motors, and how do you order one?", "cross_family": true }, { "answer_id": "STEER-055-A-002", "score": 0.711075484752655, "sibling_score": 0.711075484752655, "answer_score": 0.5208047151565551, "sibling_qid": "MUM-2026-05-3285-Q005S2", "sibling_text": "steering gear motor type", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Steering gear motor and power unit", "cross_family": false }, { "answer_id": "TG-MOTOR-001", "score": 0.6871306896209717, "sibling_score": 0.6871306896209717, "answer_score": null, "sibling_qid": "MUM-2026-06-3467-Q001", "sibling_text": "turning gear motor difference from other motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What type of motor is used for the turning gear, and what type of rotor does it have?", "cross_family": true } ] }, { "qid": "MUM-2025-08-1597-Q004S2", "text": "ACB safeties ?", "family": "", "subtopic": "", "tid": "MUM-2025-08-1597", "tray": "review", "candidates": [ { "answer_id": "CB-ACBVCB-B-001", "score": 0.6840729713439941, "sibling_score": 0.6840729713439941, "answer_score": 0.40302367657423016, "sibling_qid": "MUM-2026-09-3920-Q011", "sibling_text": "acb safeties", "sibling_family": "Electrical - Switchgear & Protection", "via": "sibling", "answer_title": "ACB/main circuit breaker safeties, trips, settings and testing", "cross_family": false }, { "answer_id": "MSB-ESB-E-001", "score": 0.6562567949295044, "sibling_score": 0.6562567949295044, "answer_score": null, "sibling_qid": "KOC-2025-09-1577-Q009", "sibling_text": "msb safeties not acb safeties", "sibling_family": "", "via": "sibling", "answer_title": "What safeties, protection trips, relays and alarms are provided on the MSB / ESB, and how are they tested?", "cross_family": false }, { "answer_id": "CBKR-D-ISORACK-001", "score": 0.626856803894043, "sibling_score": 0.626856803894043, "answer_score": 0.3672946497797966, "sibling_qid": "MUM-2026-01-1850-Q005", "sibling_text": "safeties on acb for racking out", "sibling_family": "", "via": "sibling", "answer_title": "How do you safely isolate, rack out, withdraw and prove dead an ACB/VCB before work?", "cross_family": false } ] }, { "qid": "MUM-2025-08-1597-Q005S2", "text": "Faraday law", "family": "Electrical - Distribution & MSB", "subtopic": "", "tid": "MUM-2025-08-1597", "tray": "review", "candidates": [ { "answer_id": "FAR-EMI-001", "score": 0.7233088612556458, "sibling_score": 0.7233088612556458, "answer_score": 0.5391686230897903, "sibling_qid": "MUM-2026-01-1869-Q008", "sibling_text": "faraday law", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Faraday's laws of electromagnetic induction and Lenz's law — and their shipboard use", "cross_family": true }, { "answer_id": "FAR-EMI-002", "score": 0.5405555963516235, "sibling_score": 0.5405555963516235, "answer_score": 0.4244262307882309, "sibling_qid": "KOC-2024-09-1405-Q007", "sibling_text": "laws applied in generator", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Fleming's left-hand and right-hand rules — what each tells you, and the laws in a generator", "cross_family": true }, { "answer_id": "IRT-C-001", "score": 0.5379157066345215, "sibling_score": 0.5379157066345215, "answer_score": null, "sibling_qid": "MUM-2022-07-1336-Q003", "sibling_text": "megger law", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "How a megger works — construction & principle", "cross_family": true } ] }, { "qid": "MUM-2025-08-1597-Q005S3", "text": "Principle of working of alternator.", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator / Generator", "tid": "MUM-2025-08-1597", "tray": "review", "candidates": [ { "answer_id": "ALT-GEN-P03-001", "score": 0.805220901966095, "sibling_score": 0.805220901966095, "answer_score": 0.6119722604751586, "sibling_qid": "KOC-2024-10-1408-Q012", "sibling_text": "alternator working in steps beginning from start of generator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Alternator/generator working principle and onboard electricity generation", "cross_family": false }, { "answer_id": "ALT-GEN-P03-005", "score": 0.7784186601638794, "sibling_score": 0.7784186601638794, "answer_score": null, "sibling_qid": "CHE-2026-09-3906-Q003", "sibling_text": "components in alternator working principle", "sibling_family": "Electrical - 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Protection & Relays", "via": "sibling", "answer_title": "What is a relay, what is it for, and what are its types?", "cross_family": false } ] }, { "qid": "MUM-2025-08-1607-Q002", "text": "Hight voltage gloves rating color", "family": "", "subtopic": "Electrical Safety / PPE", "tid": "MUM-2025-08-1607", "tray": "new", "candidates": [ { "answer_id": "ELEC-SAFE-004", "score": 0.6180014610290527, "sibling_score": 0.6180014610290527, "answer_score": 0.49981160163879396, "sibling_qid": "MUM-2022-08-1346-Q006", "sibling_text": "what kind of gloves and boots used for high voltage system from where you will find the ratings of the gloves and boots", "sibling_family": "", "via": "sibling", "answer_title": "HV PPE: rubber gloves and boots — material, class and rating source", "cross_family": false }, { "answer_id": "HV-SYS-P05-002", "score": 0.5564296245574951, "sibling_score": 0.5564296245574951, "answer_score": null, "sibling_qid": "KOC-2025-11-1614-Q010", "sibling_text": "if you ordered gloves for hv system how you can confirm that it is designated to use in hv system", "sibling_family": "", "via": "sibling", "answer_title": "Working on the HV system: precautions, isolation and earthing before maintenance", "cross_family": false }, { "answer_id": "RCC-568-001", "score": 0.5532058477401733, "sibling_score": 0.5532058477401733, "answer_score": null, "sibling_qid": "KOC-2023-01-0131-Q011", "sibling_text": "resistance colour code", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Resistor colour code — read the bands and find the value", "cross_family": false } ] }, { "qid": "MUM-2025-08-1607-Q004", "text": "Have you cleared other functions I said applied only Electrical", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-08-1607", "tray": "new", "candidates": [ { "answer_id": "IRT-A-016", "score": 0.5479092597961426, "sibling_score": 0.5479092597961426, "answer_score": null, "sibling_qid": "KOC-2025-05-1533-Q007", "sibling_text": "any electrical maintenance done by u onboard", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Electrical maintenance you do onboard", "cross_family": true }, { "answer_id": "ELEC-SAFE-001", "score": 0.546359121799469, "sibling_score": 0.546359121799469, "answer_score": null, "sibling_qid": "MUM-2026-05-3321-Q003", "sibling_text": "all electrical isolation permits", "sibling_family": "", "via": "sibling", "answer_title": "Electrical isolation checklist before working on equipment", "cross_family": false }, { "answer_id": "WIDAS-SMK-001", "score": 0.5353926420211792, "sibling_score": 0.5353926420211792, "answer_score": null, "sibling_qid": "KOC-2023-04-0178-Q012", "sibling_text": "explain widas electrical", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "WIDAS — water ingress detection and alarm system", "cross_family": true } ] }, { "qid": "MUM-2025-08-1607-Q011", "text": "How is Boiler fuel controlled?", "family": "Boilers - Operations & Firing", "subtopic": "Automatic Combustion Control", "tid": "MUM-2025-08-1607", "tray": "review", "candidates": [ { "answer_id": "ACC-603-001", "score": 0.7280042171478271, "sibling_score": 0.7280042171478271, "answer_score": 0.5417027831077575, "sibling_qid": "MUM-2026-07-3800-Q003", "sibling_text": "boiler combustion control", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "The automatic combustion control system — how it works, the start sequence, and the emergency arrangement", "cross_family": false }, { "answer_id": "AFR-BF68-001", "score": 0.7072424292564392, "sibling_score": 0.7072424292564392, "answer_score": 0.592809584736824, "sibling_qid": "KOL-2023-10-2681-Q001", "sibling_text": "boiler air fuel ratio controller what increases first air or fuel", "sibling_family": "Boilers - 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(LV: PVC, HV XLPE and full form)", "family": "Electrical - Cables & Insulation", "subtopic": "Cable Types & Insulation", "tid": "MUM-2025-08-1607", "tray": "review", "candidates": [ { "answer_id": "CBL-INS-A-001", "score": 0.6609975099563599, "sibling_score": 0.6609975099563599, "answer_score": 0.5325259208679199, "sibling_qid": "KOC-2023-10-1292-Q003", "sibling_text": "iec cables for lv and hv", "sibling_family": "", "via": "sibling", "answer_title": "IEC / marine cable standards used for shipboard cables", "cross_family": false }, { "answer_id": "CABLE-INSUL-D-001", "score": 0.6502517461776733, "sibling_score": 0.6502517461776733, "answer_score": null, "sibling_qid": "KOL-2025-11-2906-Q005", "sibling_text": "hv insulation cables", "sibling_family": "", "via": "sibling", "answer_title": "Insulation: materials, classes and required properties", "cross_family": false }, { "answer_id": "CABLE-INS-E-001", "score": 0.6441159248352051, "sibling_score": 0.6441159248352051, "answer_score": 0.5279086112976074, "sibling_qid": "KOL-2025-11-2909-Q002", "sibling_text": "cables used in hv system", "sibling_family": "", "via": "sibling", "answer_title": "LV, MV and HV cable & insulation requirements on ships", "cross_family": false } ] }, { "qid": "MUM-2025-08-1607-Q015", "text": "Alternator? (Safety precautions TBT RA and generator to manual, than will", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator Maintenance", "tid": "MUM-2025-08-1607", "tray": "review", "candidates": [ { "answer_id": "ALT-MTN-B-002", "score": 0.7045418620109558, "sibling_score": 0.7045418620109558, "answer_score": null, "sibling_qid": "KOC-2025-10-1579-Q008", "sibling_text": "precautions for removing alternator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Isolation and safety precautions before maintenance or removal", "cross_family": false }, { "answer_id": "ALT-MAINT-A-001", "score": 0.6982306241989136, "sibling_score": 0.6982306241989136, "answer_score": 0.5413589775562286, "sibling_qid": "MUM-2026-06-3545-Q003", "sibling_text": "safeties to be carried out while maintenance on alternator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Routine maintenance & care of a ship’s alternator", "cross_family": false }, { "answer_id": "ALT-GEN-P01-001", "score": 0.692737877368927, "sibling_score": 0.692737877368927, "answer_score": 0.49688388407230377, "sibling_qid": "KOC-2025-05-1537-Q003", "sibling_text": "alternator safeties mounted on alternator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Alternator/generator safeties and protection trips", "cross_family": false } ] }, { "qid": "MUM-2025-08-1607-Q019", "text": "less what will happen amd when normal what will happen)", "family": "", "subtopic": "", "tid": "MUM-2025-08-1607", "tray": "new", "candidates": [ { "answer_id": "AC-VE-005", "score": 0.4956773519515991, "sibling_score": 0.4956773519515991, "answer_score": null, "sibling_qid": "KOC-2026-01-1993-Q030", "sibling_text": "what happens if less and more to compressor", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "If bumping clearance is more or less, what happens, and how do you reduce or adjust it?", "cross_family": false }, { "answer_id": "CYL-LINER-P04-002", "score": 0.47263842821121216, "sibling_score": 0.47263842821121216, "answer_score": null, "sibling_qid": "CHE-2026-02-0474-Q003", "sibling_text": "your reading is less than previous reading what will you do", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Judging, measuring, removing & discarding a cylinder liner", "cross_family": false }, { "answer_id": "BCL-592-003", "score": 0.4694507122039795, "sibling_score": 0.4694507122039795, "answer_score": null, "sibling_qid": "KOC-2022-07-0966-Q016", "sibling_text": "what happens if more less clearances", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What are the effects of bearing clearance being too high or too low?", "cross_family": false } ] }, { "qid": "MUM-2025-08-1607-Q021", "text": "mannual add this line)", "family": "", "subtopic": "", "tid": "MUM-2025-08-1607", "tray": "new", "candidates": [ { "answer_id": "PA-MAN-001", "score": 0.5525429248809814, "sibling_score": 0.5525429248809814, "answer_score": null, "sibling_qid": "MUM-2022-08-0037-Q001", "sibling_text": "pa manual", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What is the P&A Manual (Procedures and Arrangements Manual)?", "cross_family": false }, { "answer_id": "LLC-SURV-P01-001", "score": 0.5166106224060059, "sibling_score": 0.5166106224060059, "answer_score": null, "sibling_qid": "MUM-2025-10-0508-Q003", "sibling_text": "load line as 2e", "sibling_family": "", "via": "sibling", "answer_title": "Load line survey preparation as Second Engineer: engine-room scope, machinery openings, tanks/vents, valves and overboard checks", "cross_family": false }, { "answer_id": "LL-CONV-P06-004", "score": 0.515764594078064, "sibling_score": 0.515764594078064, "answer_score": null, "sibling_qid": "MUM-2026-03-0798-Q004", "sibling_text": "load line", "sibling_family": "", "via": "sibling", "answer_title": "LLC-P06-04 - General load-line requirement, marks, stability link and overloading consequences", "cross_family": false } ] }, { "qid": "MUM-2025-08-1609-Q003", "text": "Generator started but voltage not developing and action to be taken", "family": "Electrical - Generator & Alternator", "subtopic": "Voltage Not Coming", "tid": "MUM-2025-08-1609", "tray": "review", "candidates": [ { "answer_id": "NO-VOLT-001", "score": 0.8582088947296143, "sibling_score": 0.8582088947296143, "answer_score": 0.5862471342086791, "sibling_qid": "MUM-2026-06-3485-Q003", "sibling_text": "generator started but voltage not developing and action to be taken", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "The 3/E reports the generator has started but no voltage is showing — reasons, and your actions as 2/E", "cross_family": false }, { "answer_id": "RES-MAG-002", "score": 0.7793582081794739, "sibling_score": 0.7793582081794739, "answer_score": 0.6434925317764282, "sibling_qid": "KOL-2021-07-2455-Q005", "sibling_text": "generator started after many days and voltage not developing reasons", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Generator started but no voltage developing — reasons, and your action as Second Engineer", "cross_family": false }, { "answer_id": "NO-VOLT-003", "score": 0.5553992748260498, "sibling_score": null, "answer_score": 0.5553992748260498, "sibling_qid": "", "sibling_text": "started after a long standby or in drydock and no voltage develops causes and how do you restore it two independent families insulation gone down while idle and excitation that has decayed or been disturbed test both finding one does not clear the other inspect and clean before you test debris salt hygroscopic dust and moisture on the winding outhang are what pull the reading down", "sibling_family": "", "via": "answer_title", "answer_title": "Started after a long standby or in drydock and no voltage develops — causes, and how do you restore it?", "cross_family": false } ] }, { "qid": "MUM-2025-08-1611-Q003", "text": "Alternator safety", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator Protection", "tid": "MUM-2025-08-1611", "tray": "review", "candidates": [ { "answer_id": "ALT-GEN-P01-001", "score": 0.7953636646270752, "sibling_score": 0.7953636646270752, "answer_score": 0.525908601284027, "sibling_qid": "MUM-2026-09-3990-Q001", "sibling_text": "alternator safety", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Alternator/generator safeties and protection trips", "cross_family": false }, { "answer_id": "ALT-MTN-B-001", "score": 0.5347012281417847, "sibling_score": null, "answer_score": 0.5347012281417847, "sibling_qid": "", "sibling_text": "routine onboard alternator maintenance checks clean air path dry low pressure air blow through cooler and filters clear keep winding temperature in band insulation resistance to earth on a megger trended over time investigate a falling trend do not wait for the alarm", "sibling_family": "", "via": "answer_title", "answer_title": "Routine onboard alternator maintenance checks", "cross_family": false }, { "answer_id": "ALT-MAINT-A-001", "score": 0.531174612045288, "sibling_score": null, "answer_score": 0.531174612045288, "sibling_qid": "", "sibling_text": "routine maintenance care of a ship s alternator make safe first permit to work isolate rack out and lock off the breaker immobilise the prime mover the set is engine driven a blackout dead bus auto start can crank it prove dead discharge the windings the space heater supply is separate it stays live after the alternator breaker is open isolate it independently before touching the windings", "sibling_family": "", "via": "answer_title", "answer_title": "Routine maintenance & care of a ship’s alternator", "cross_family": false } ] }, { "qid": "MUM-2025-08-1612-Q002", "text": "Type of ship - bulk carrier", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-08-1612", "tray": "review", "candidates": [ { "answer_id": "SOLAS12-BC-A-001", "score": 0.8663186430931091, "sibling_score": 0.8663186430931091, "answer_score": 0.5892977625131607, "sibling_qid": "MUM-2026-06-3382-Q001", "sibling_text": "type of ship sailed bulk carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "SOLAS definition and scope of a bulk carrier", "cross_family": false }, { "answer_id": "SOLAS-XII-BC-002", "score": 0.7811163663864136, "sibling_score": 0.7811163663864136, "answer_score": null, "sibling_qid": "KOC-2026-09-2208-Q005", "sibling_text": "bulk carrier as per solas", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Explain SOLAS Chapter XII — the additional safety measures for bulk carriers", "cross_family": true }, { "answer_id": "COT-01", "score": 0.7596115469932556, "sibling_score": 0.7596115469932556, "answer_score": null, "sibling_qid": "KOC-2026-04-0892-Q003", "sibling_text": "type of ship sailed tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Oil-tanker types, definitions and cargo capability", "cross_family": false } ] }, { "qid": "MUM-2025-08-1613-Q007", "text": "reverse power said I want on alternator safety", "family": "Electrical - Generator & Alternator", "subtopic": "Reverse Power Trip", "tid": "MUM-2025-08-1613", "tray": "review", "candidates": [ { "answer_id": "RPT-C-001", "score": 0.7690357565879822, "sibling_score": 0.7690357565879822, "answer_score": 0.5591858476400375, "sibling_qid": "MUM-2024-07-1443-Q001", "sibling_text": "alternator safeties reverse power trip working", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Reverse power in the paralleling picture — where it sits among the alternator safeties", "cross_family": false }, { "answer_id": "RPT-A-001", "score": 0.7013241648674011, "sibling_score": 0.7013241648674011, "answer_score": 0.46099551916122433, "sibling_qid": "KOL-2022-01-2530-Q004", "sibling_text": "reverse power trip what happens in alternator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Reverse power: what it is, why it happens, why we protect against it", "cross_family": false }, { "answer_id": "RPT-B-001", "score": 0.6939654350280762, "sibling_score": 0.6939654350280762, "answer_score": null, "sibling_qid": "KOL-2022-12-2628-Q003", "sibling_text": "what is directional protection in alternator reverse power trip", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Construction & directional working — coils and the aluminium disc", "cross_family": false } ] }, { "qid": "MUM-2025-08-1619-Q006", "text": "Tanker vessel what is the specification of electrical system. Half the questions were not clear as he was eating something during the", "family": "General Marine Engineering", "subtopic": "Engine Ratings (MCR/NOR)", "tid": "MUM-2025-08-1619", "tray": "review", "candidates": [ { "answer_id": "ELEC-SURV-005", "score": 0.7352203130722046, "sibling_score": 0.7352203130722046, "answer_score": null, "sibling_qid": "KOL-2018-09-2223-Q004", "sibling_text": "class requirements for all electrical equipments on board a tanker all details", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Regulatory basis & equipment standards", "cross_family": true }, { "answer_id": "ALT-GEN-P02-001", "score": 0.7330325841903687, "sibling_score": 0.7330325841903687, "answer_score": 0.5733026981353759, "sibling_qid": "KOC-2025-04-1521-Q002", "sibling_text": "tell me the specification of the electrical power system in your vessel", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Alternator/generator specifications, ratings and ship electrical supply details", "cross_family": true }, { "answer_id": "VOLT-SYS-001", "score": 0.720295786857605, "sibling_score": 0.720295786857605, "answer_score": 0.5556008160114289, "sibling_qid": "KOC-2026-03-0887-Q002", "sibling_text": "ship electrical specs", "sibling_family": "Electrical - Distribution & MSB", "via": "sibling", "answer_title": "Shipboard voltages and frequency in use", "cross_family": true } ] }, { "qid": "MUM-2025-08-1620-Q002", "text": "How was the neutral connected in your vessel", "family": "Electrical - Distribution & Earthing", "subtopic": "Neutral Connection / Earthing", "tid": "MUM-2025-08-1620", "tray": "new", "candidates": [ { "answer_id": "NER-HV-P04-001", "score": 0.5436793565750122, "sibling_score": 0.5436793565750122, "answer_score": 0.4272079348564148, "sibling_qid": "KOC-2023-05-1261-Q007", "sibling_text": "in hv how neutral is connected to ship what is ner in single phase how neutral is connected where cables are going from circuit breaker where it is going", "sibling_family": "", "via": "sibling", "answer_title": "What an NER is, where it is used, and why it is fitted in HV systems", "cross_family": false }, { "answer_id": "ICCP-P02-001", "score": 0.5211447477340698, "sibling_score": 0.5211447477340698, "answer_score": null, "sibling_qid": "MUM-2026-03-2041-Q001", "sibling_text": "cold ironing why called cold ironing some cross question steering gear trip and alarms and cross question reference electrode material and working overcurrent trip procedure how was the neutral connected in your vessel", "sibling_family": "Electrical - 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Magnetic Particle Inspection (MPI / MPT)", "cross_family": true }, { "answer_id": "NDT-METH-P01-002", "score": 0.5940037965774536, "sibling_score": 0.5940037965774536, "answer_score": null, "sibling_qid": "CHE-2025-07-0404-Q004", "sibling_text": "explain ndt explain dpt", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Dye penetrant test (DPT): principle, procedure, penetrant/developer properties, safety", "cross_family": true } ] }, { "qid": "MUM-2025-08-2356-Q001", "text": "How to check timing of fuel pump ?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Pump Timing", "tid": "MUM-2025-08-2356", "tray": "review", "candidates": [ { "answer_id": "FCL-P02-001", "score": 0.8153950572013855, "sibling_score": 0.8153950572013855, "answer_score": 0.5919269174337387, "sibling_qid": "KOC-2023-12-0986-Q013", "sibling_text": "fuel pump timing how to check", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel pump / injection timing check, setting, and adjustment", "cross_family": false }, { "answer_id": "FCL-P03-001", "score": 0.8033856749534607, "sibling_score": 0.8033856749534607, "answer_score": 0.6285670846700668, "sibling_qid": "CHE-2026-08-0669-Q008", "sibling_text": "generator fuel pump timing how will u check", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "AE / auxiliary-engine fuel pump timing check and adjustment", "cross_family": false }, { "answer_id": "AEFP-471-004", "score": 0.5528325378894806, "sibling_score": null, "answer_score": 0.5528325378894806, "sibling_qid": "", "sibling_text": "how do you take or check auxiliary engine fuel pump lead lead flywheel degrees btdc at spill port closure the start of injection method prime the pump remove delivery valve and spring refit holder with gooseneck swan neck pipe free flow while ports open", "sibling_family": "", "via": "answer_title", "answer_title": "How do you take or check auxiliary-engine fuel-pump lead?", "cross_family": false } ] }, { "qid": "MUM-2025-08-2356-Q001S2", "text": "How to soot blow EGB ?", "family": "", "subtopic": "", "tid": "MUM-2025-08-2356", "tray": "new", "candidates": [ { "answer_id": "SIH-FIRE-001", "score": 0.567649245262146, "sibling_score": 0.567649245262146, "answer_score": null, "sibling_qid": "KOC-2026-05-2124-Q012", "sibling_text": "egb soot fire", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "How will you identify an economiser / EGB fire — indications, symptoms and control?", "cross_family": false }, { "answer_id": "BFS-257-010", "score": 0.5585614442825317, "sibling_score": 0.5585614442825317, "answer_score": 0.3787398636341095, "sibling_qid": "MUM-2026-05-3346-Q004", "sibling_text": "how to know egb soot blow done correctly", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "How to confirm soot blowing has been carried out effectively", "cross_family": false }, { "answer_id": "BFS-257-009", "score": 0.5556613206863403, "sibling_score": 0.5556613206863403, "answer_score": 0.45623781979084016, "sibling_qid": "KOL-2017-12-3108-Q003", "sibling_text": "soot blowing arrangement for egb", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "EGB soot-blowing arrangement and cleaning with the main engine running", "cross_family": false } ] }, { "qid": "MUM-2025-08-2356-Q003", "text": "What to do if coupling bush is broken and no spare. Cast iron welding.", "family": "Workshop & Welding", "subtopic": "Cast Iron Welding", "tid": "MUM-2025-08-2356", "tray": "new", "candidates": [ { "answer_id": "LH-ELEC-006", "score": 0.595288097858429, "sibling_score": 0.595288097858429, "answer_score": 0.4105958342552185, "sibling_qid": "MUM-2025-12-0992-Q012", "sibling_text": "valve broken from bridge how to repair i said to salvage from a old same sized valve he shouting then i said by welding again asking cast iron how to weld lh electrode explained", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "6. How would you approach a cast-iron valve repair when the examiner probes welding and low-hydrogen electrodes?", "cross_family": false }, { "answer_id": "PCD-P02-05", "score": 0.5270715951919556, "sibling_score": 0.5270715951919556, "answer_score": null, "sibling_qid": "KOL-2021-07-1603-Q005", "sibling_text": "centrifugal pump shaft worn out in way of impeller coupling no spare how to make repair for temporary at least 1 month use", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Centrifugal / sea-water pump shaft repair — worn shaft, no spare", "cross_family": true }, { "answer_id": "PCD-P05-03", "score": 0.5137088298797607, "sibling_score": 0.5137088298797607, "answer_score": null, "sibling_qid": "MUM-2022-10-2151-Q007", "sibling_text": "no spare bush for gear pump what to do in urgency", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Gear pump — construction, working, backlash, tooth profile, safety valve, why not for sea water", "cross_family": true } ] }, { "qid": "MUM-2025-08-2357-Q001S2", "text": "in AE Checks on con rod bolts?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE Conrod / Piston", "tid": "MUM-2025-08-2357", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.7470794320106506, "sibling_score": 0.7470794320106506, "answer_score": 0.49648358821868893, "sibling_qid": "CHE-2026-05-0569-Q010", "sibling_text": "ae conn rod bolt checking", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "AECR-651-001", "score": 0.707943320274353, "sibling_score": 0.707943320274353, "answer_score": 0.46293194591999054, "sibling_qid": "MUM-2022-12-1037-Q023", "sibling_text": "checks on con rod of ae", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What checks do you carry out on the connecting rod of an AE / DG — inspection, overhaul checks and the trueness check?", "cross_family": true }, { "answer_id": "AE-CRP-004", "score": 0.6912532448768616, "sibling_score": 0.6912532448768616, "answer_score": null, "sibling_qid": "KOL-2018-04-3139-Q003", "sibling_text": "a e con rod ovality what 2 check in con rod bolts", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE connecting-rod inspection — ovality, trueness, serrations, action if out of limit", "cross_family": false } ] }, { "qid": "MUM-2025-08-2357-Q001S3", "text": "One boiler circulation pump running in right direction but stby pump running in wrong direction", "family": "Boilers - Operations & Firing", "subtopic": "Boiler Water Circulation", "tid": "MUM-2025-08-2357", "tray": "review", "candidates": [ { "answer_id": "PAL-620-001", "score": 0.8826454877853394, "sibling_score": 0.8826454877853394, "answer_score": null, "sibling_qid": "MUM-2026-03-2658-Q004", "sibling_text": "one boiler circulation pump running in right direction but stby pump running in wrong direction", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "How do you check and set the alignment between a pump and its motor? 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Specification of ME", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "MUM-2025-08-2357", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.7274938821792603, "sibling_score": 0.7274938821792603, "answer_score": null, "sibling_qid": "MUM-2026-02-1280-Q001", "sibling_text": "type of ship done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.6841967105865479, "sibling_score": 0.6841967105865479, "answer_score": 0.4755212277173996, "sibling_qid": "CHE-2026-02-0109-Q001", "sibling_text": "type of ship explain what type is your vessel explain their type and difference", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.6772764325141907, "sibling_score": 0.6772764325141907, "answer_score": null, "sibling_qid": "CHE-2026-04-0373-Q001S6", "sibling_text": "type of ship specification of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "MUM-2025-08-2357-Q003", "text": "what do you understand by mark 9?", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-08-2357", "tray": "new", "candidates": [ { "answer_id": "MEB-MEC-P03-001", "score": 0.6002827882766724, "sibling_score": 0.6002827882766724, "answer_score": null, "sibling_qid": "CHE-2025-09-0178-Q007", "sibling_text": "mark 9 significance in me c", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "ME-B vs ME-C — the core difference", "cross_family": true }, { "answer_id": "ENG-NOM-003", "score": 0.45674657821655273, "sibling_score": 0.45674657821655273, "answer_score": null, "sibling_qid": "KOC-2026-03-1116-Q004", "sibling_text": "what does the mark number signifies", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Stroke letters S/L/K/G, stroke-bore ratio, mark and series number", "cross_family": true }, { "answer_id": "BWM-D1D2-P04-003", "score": 0.4139217138290405, "sibling_score": 0.4139217138290405, "answer_score": null, "sibling_qid": "KOC-2023-08-0216-Q009", "sibling_text": "g9 in bwms", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "G9 — approval of systems that use Active Substances", "cross_family": true } ] }, { "qid": "MUM-2025-08-2361-Q004", "text": "Repair of breached rudder", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "MUM-2025-08-2361", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.8108026385307312, "sibling_score": 0.8108026385307312, "answer_score": null, "sibling_qid": "MUM-2026-06-3598-Q004", "sibling_text": "repair of breached rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "PRE-TEN-001", "score": 0.6212568879127502, "sibling_score": 0.6212568879127502, "answer_score": null, "sibling_qid": "MUM-2026-09-3907-Q001", "sibling_text": "rudder carrier bearing replacement in port", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Pre-stressing and pre-tensioning in main-engine bolting", "cross_family": false }, { "answer_id": "WBS-C-006", "score": 0.5227462083101272, "sibling_score": null, "answer_score": 0.5227462083101272, "sibling_qid": "", "sibling_text": "propeller and rudder repair grading the damage and the class approved route grade the damage first minor nicks erosion bent tip vs crack major minor grind and blend out the notch restore a fair section keep balance small cold repair epoxy fillers for minor surface defects only", "sibling_family": "", "via": "answer_title", "answer_title": "Propeller and rudder repair — grading the damage and the Class-approved route", "cross_family": false } ] }, { "qid": "MUM-2025-08-2366-Q001", "text": "Fatigue ?\"What are cyclic stresses ? what are varying load Where you can find ?", "family": "Materials & Metallurgy", "subtopic": "Creep / Fatigue Failure", "tid": "MUM-2025-08-2366", "tray": "new", "candidates": [ { "answer_id": "CFF-P02-002", "score": 0.5756111741065979, "sibling_score": 0.5756111741065979, "answer_score": 0.4473896145820618, "sibling_qid": "KOL-2019-12-1879-Q004", "sibling_text": "sn curve uses fatigue stresses where onboard", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "The S-N curve and the endurance (fatigue) limit", "cross_family": true }, { "answer_id": "CFF-P02-001", "score": 0.5663299560546875, "sibling_score": 0.5663299560546875, "answer_score": 0.4838530659675598, "sibling_qid": "KOC-2025-09-1944-Q002", "sibling_text": "what is fatigue what kind of load causes fatigue few components that can fail by fatigue in engine room", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Fatigue failure — what it is and where it occurs", "cross_family": true }, { "answer_id": "CFF-P02-005", "score": 0.5169052481651306, "sibling_score": 0.5169052481651306, "answer_score": null, "sibling_qid": "KOL-2022-08-1923-Q002", "sibling_text": "what is fatigue fatigue in engine components con rod bolts check what maintanence routines how many hours renewal", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Reducing and preventing fatigue failure", "cross_family": true } ] }, { "qid": "MUM-2025-08-2366-Q001S2", "text": "Purifier operation ?Purifier desludging procedure ?", "family": "", "subtopic": "", "tid": "MUM-2025-08-2366", "tray": "review", "candidates": [ { "answer_id": "PUR-DSL-001", "score": 0.7497113943099976, "sibling_score": 0.7497113943099976, "answer_score": 0.6246215283870696, "sibling_qid": "MUM-2024-07-2767-Q015", "sibling_text": "purifier desludging manual procedure", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Manual desludging of a purifier — the step-by-step procedure", "cross_family": false }, { "answer_id": "PURIF-BOWL-P02-001", "score": 0.7249550819396973, "sibling_score": 0.7249550819396973, "answer_score": null, "sibling_qid": "KOL-2023-07-3628-Q004", "sibling_text": "purifier manual desludging", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Bowl opening, closing & manual desludging — mechanism, manual operation, failure causes", "cross_family": false }, { "answer_id": "PUR-DSL-002", "score": 0.5020265281200409, "sibling_score": null, "answer_score": 0.5020265281200409, "sibling_qid": "", "sibling_text": "purifier overflow after desludging causes and checking or adjusting bowl height first suspect after a desludge bowl not fully closed the seal never re made operating water side pressure strainer solenoid bowl side pilot plugs seal ring", "sibling_family": "", "via": "answer_title", "answer_title": "Purifier overflow after desludging — causes, and checking or adjusting bowl height", "cross_family": false } ] }, { "qid": "MUM-2025-08-2366-Q001S3", "text": "Refrigeration charging procedure ?", "family": "", "subtopic": "", "tid": "MUM-2025-08-2366", "tray": "review", "candidates": [ { "answer_id": "REEF-CHG-001", "score": 0.7886111736297607, "sibling_score": 0.7886111736297607, "answer_score": 0.6248099982738494, "sibling_qid": "CHE-2025-12-0461-Q003", "sibling_text": "refrigerant charging procedure", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "01Charging or replenishing the refrigerant in a refrigeration / AC plant", "cross_family": false }, { "answer_id": "REEF-COMP-004", "score": 0.7446401119232178, "sibling_score": 0.7446401119232178, "answer_score": null, "sibling_qid": "KOL-2016-07-2989-Q002", "sibling_text": "reefer lo charging procedure", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Charging, replenishing and draining compressor lube oil — including with no charging pump", "cross_family": false }, { "answer_id": "REEF-CHG-004", "score": 0.7362180948257446, "sibling_score": 0.7362180948257446, "answer_score": 0.6056486904621124, "sibling_qid": "KOL-2019-03-3225-Q003", "sibling_text": "how to charge refrigerant how to purge air from connection line before charging not the usual one cant release in armosphere", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "04Where refrigerant is charged, and purging the charging line without releasing refrigerant", "cross_family": false } ] }, { "qid": "MUM-2025-08-2367-Q001", "text": "Type of ship, rank experience", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-08-2367", "tray": "new", "candidates": [ { "answer_id": "BM-SF-CF-003", "score": 0.6139786243438721, "sibling_score": 0.6139786243438721, "answer_score": null, "sibling_qid": "MUM-2026-02-0790-Q004", "sibling_text": "ship experience forces", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Forces on a ship that produce shear force and bending moment", "cross_family": true }, { "answer_id": "LLST-AB-001", "score": 0.6076658368110657, "sibling_score": 0.6076658368110657, "answer_score": 0.3965242519974708, "sibling_qid": "CHE-2026-05-0614-Q001", "sibling_text": "start from type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.598438560962677, "sibling_score": 0.598438560962677, "answer_score": null, "sibling_qid": "KOL-2026-09-4290-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false } ] }, { "qid": "MUM-2025-08-2372-Q002", "text": "removal of rudder bearing. 3.iapp certificate survey 4. How to know the breach of the rudder.", "family": "Surveys - Statutory", "subtopic": "Audit", "tid": "MUM-2025-08-2372", "tray": "review", "candidates": [ { "answer_id": "ESP-B-002", "score": 0.7063695788383484, "sibling_score": 0.7063695788383484, "answer_score": null, "sibling_qid": "MUM-2025-07-2338-Q003", "sibling_text": "iapp certificate survey 4 how to know the breach of the rudder 5 esp", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Close-up survey, thickness gauging, substantial corrosion & renewal criteria", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.6153643131256104, "sibling_score": 0.6153643131256104, "answer_score": 0.49323273599147793, "sibling_qid": "MUM-2026-06-3610-Q003", "sibling_text": "removal of rudder bearing", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": true }, { "answer_id": "RUD-DROP-003", "score": 0.6089895963668823, "sibling_score": 0.6089895963668823, "answer_score": 0.4540091633796692, "sibling_qid": "KOL-2024-03-3677-Q002", "sibling_text": "how to check rudder drop where to fit trammel gauge rudder drop has reached its max limit and bearing white metal has gone how u ll proceed with its repair and what you ll do to bearing", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Rudder drop at the limit: the decision", "cross_family": true } ] }, { "qid": "MUM-2025-08-2372-Q004", "text": "Type of ship and engine ?", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "MUM-2025-08-2372", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8331958651542664, "sibling_score": 0.8331958651542664, "answer_score": null, "sibling_qid": "MUM-2025-08-2357-Q001", "sibling_text": "type of ship type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.8268977999687195, "sibling_score": 0.8268977999687195, "answer_score": null, "sibling_qid": "MUM-2026-07-3668-Q004", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7617085576057434, "sibling_score": 0.7617085576057434, "answer_score": null, "sibling_qid": "KOL-2025-12-2031-Q002", "sibling_text": "type of ship and engine sailed engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "MUM-2025-08-2372-Q008", "text": "How camshaft of ur engine gets drive ? No camshaft only servo and fuel rails. Den over to external", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Camshaft Drive / Gear Arrangement", "tid": "MUM-2025-08-2372", "tray": "review", "candidates": [ { "answer_id": "CAM-437-001", "score": 0.7262808680534363, "sibling_score": 0.7262808680534363, "answer_score": null, "sibling_qid": "MUM-2026-05-3323-Q003", "sibling_text": "how camshaft driving", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Function of the camshaft in a main (MC) engine", "cross_family": false }, { "answer_id": "CAM-437-002", "score": 0.6840448975563049, "sibling_score": 0.6840448975563049, "answer_score": null, "sibling_qid": "MUM-2025-05-1111-Q016", "sibling_text": "main engine cam operation", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Cam operation in the main engine", "cross_family": false }, { "answer_id": "FCL-P01-001", "score": 0.680750846862793, "sibling_score": 0.680750846862793, "answer_score": null, "sibling_qid": "KOL-2018-08-3176-Q002", "sibling_text": "by rao fuel pump cam lead full procedure", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel pump lead and fuel cam lead: meaning, measurement, significance and adjustment", "cross_family": false } ] }, { "qid": "MUM-2025-08-2374-Q001", "text": "Types of bedplates", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Bedplate / A-Frame", "tid": "MUM-2025-08-2374", "tray": "review", "candidates": [ { "answer_id": "FWFB-P02-007", "score": 0.7203740477561951, "sibling_score": 0.7203740477561951, "answer_score": null, "sibling_qid": "MUM-2026-03-2952-Q007", "sibling_text": "what type of bedplate", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Transverse and longitudinal girders: arrangement and purpose", "cross_family": false }, { "answer_id": "BED-CHOCK-001", "score": 0.5414868593215942, "sibling_score": 0.5414868593215942, "answer_score": null, "sibling_qid": "MUM-2023-08-0952-Q004", "sibling_text": "how to fix bed plate on ship", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "How is the main-engine bedplate fixed to the ship's structure?", "cross_family": false }, { "answer_id": "SHELL-PLT-B-002", "score": 0.5236255526542664, "sibling_score": 0.5236255526542664, "answer_score": null, "sibling_qid": "KOL-2024-08-0854-Q003", "sibling_text": "stealer plate coffin plate gusset plate", "sibling_family": "", "via": "sibling", "answer_title": "Stealer plate and strake nesting", "cross_family": false } ] }, { "qid": "MUM-2025-08-2374-Q003", "text": "why class is important for vessels. 6. Keel plate renewal and material and how will you do maintenance on DD in front of surveyor. Why High tensile steel not used for keel. How keel is placed it’s geometry. 7. Types of steel", "family": "Surveys - Statutory", "subtopic": "Audit", "tid": "MUM-2025-08-2374", "tray": "new", "candidates": [ { "answer_id": "IACS-324-002", "score": 0.6255351305007935, "sibling_score": 0.6255351305007935, "answer_score": null, "sibling_qid": "KOC-2023-05-0192-Q004", "sibling_text": "y ship need to be classed classification society functions", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "2. What is a classification society, why does a ship need class, and what are its functions?", "cross_family": false }, { "answer_id": "STEEL-GR-001", "score": 0.62037193775177, "sibling_score": 0.62037193775177, "answer_score": null, "sibling_qid": "KOC-2021-12-0040-Q008", "sibling_text": "material used in ship construction classes", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Materials and steel grades for ship and hull construction", "cross_family": true }, { "answer_id": "CERT-LIST-P01-001", "score": 0.6176233291625977, "sibling_score": 0.6176233291625977, "answer_score": null, "sibling_qid": "KOL-2020-06-3340-Q004", "sibling_text": "which certificate will tell u about the class to which ship is classified", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "List the statutory certificates carried onboard a ship.", "cross_family": false } ] }, { "qid": "MUM-2025-08-2374-Q004", "text": "Killed steel and alloy steels ?", "family": "Materials & Metallurgy", "subtopic": "Steel Types / Killed Steel / Alloy Steel", "tid": "MUM-2025-08-2374", "tray": "new", "candidates": [ { "answer_id": "ICD-065-002", "score": 0.5483317971229553, "sibling_score": 0.5483317971229553, "answer_score": null, "sibling_qid": "MUM-2023-12-1068-Q005", "sibling_text": "what is eutectic steel", "sibling_family": "Materials & Metallurgy", "via": "sibling", "answer_title": "What is eutectic steel?", "cross_family": false }, { "answer_id": "STEEL-GR-004", "score": 0.5275639295578003, "sibling_score": 0.5275639295578003, "answer_score": 0.4242801919579506, "sibling_qid": "MUM-2026-05-3173-Q002", "sibling_text": "different types of steel", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Types of steel and the effect of alloying elements", "cross_family": true }, { "answer_id": "MATPROP-A-003", "score": 0.5223451852798462, "sibling_score": 0.5223451852798462, "answer_score": null, "sibling_qid": "KOL-2018-03-1857-Q003", "sibling_text": "alloy steel cast iron and stainless steel composition difference and property of each partly satisfied", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Cast iron: grey, white, nodular; versus cast steel", "cross_family": true } ] }, { "qid": "MUM-2025-08-2378-Q003", "text": "For anti heeling what kind of pump and motor is there why specifically this type of pump is", "family": "Pumps - Centrifugal & PD", "subtopic": "Centrifugal Pump", "tid": "MUM-2025-08-2378", "tray": "new", "candidates": [ { "answer_id": "HSAP-583-A-001", "score": 0.620898425579071, "sibling_score": 0.620898425579071, "answer_score": null, "sibling_qid": "KOC-2025-06-1040-Q006", "sibling_text": "hele shaw pump", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Hele-Shaw pump: construction and working — draw and explain", "cross_family": false }, { "answer_id": "HSAP-583-A-012", "score": 0.6194887757301331, "sibling_score": 0.6194887757301331, "answer_score": null, "sibling_qid": "MUM-2026-06-3563-Q002", "sibling_text": "hele shaw p p and swash plate pump", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Hele-Shaw against swash plate: radial and axial piston pumps compared", "cross_family": false }, { "answer_id": "PCD-P05-03", "score": 0.617644190788269, "sibling_score": 0.617644190788269, "answer_score": null, "sibling_qid": "KOL-2020-03-3331-Q005", "sibling_text": "gear pump working", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Gear pump — construction, working, backlash, tooth profile, safety valve, why not for sea water", "cross_family": false } ] }, { "qid": "MUM-2025-08-2378-Q004", "text": "only used. What pumps you had onboard. Tail shaft survey from starting to end how will you do it as 2E. From rudder removal to what", "family": "Pumps - Centrifugal & PD", "subtopic": "Centrifugal Pump", "tid": "MUM-2025-08-2378", "tray": "new", "candidates": [ { "answer_id": "PCD-P02-05", "score": 0.6239628195762634, "sibling_score": 0.6239628195762634, "answer_score": null, "sibling_qid": "KOL-2021-07-3430-Q002", "sibling_text": "main sea water pump survey how to use slacken shaft if no spare available what to do with pitting marks", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Centrifugal / sea-water pump shaft repair — worn shaft, no spare", "cross_family": false }, { "answer_id": "STERN-TUBE-TAIL-SHAFT-001", "score": 0.6032339930534363, "sibling_score": 0.6032339930534363, "answer_score": null, "sibling_qid": "MUM-2025-12-2522-Q002", "sibling_text": "tailshaft survey complete removal of tailshaft process", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "", "cross_family": true }, { "answer_id": "PAL-620-002", "score": 0.6019178032875061, "sibling_score": 0.6019178032875061, "answer_score": null, "sibling_qid": "KOL-2024-03-3677-Q006", "sibling_text": "windlass load test skd multistage centrifugal pump was asking about circulating pump only has been removed for overhauling and how u ll proceed to fit it back was not interested to listen it s overhauling it was about how u ll fit back i e preparation for the foundation of pump how u ll prepare to fit back and later as in circulating pump basement gets pitting and other defects due to leakage of pump how u ll do alignment and shims material", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "How do you align and refit a pump and motor set after an overhaul, and what checks apply? The pump vibrates after overhaul — reasons and actions.", "cross_family": false } ] }, { "qid": "MUM-2025-08-2378-Q005", "text": "checks on shaft. Lets say you found a crack on shaft what kind of welding and how will you proceed", "family": "Workshop & Welding", "subtopic": "Boiler Plate Replacement", "tid": "MUM-2025-08-2378", "tray": "review", "candidates": [ { "answer_id": "WBS-C-005", "score": 0.7094587683677673, "sibling_score": 0.7094587683677673, "answer_score": null, "sibling_qid": "MUM-2026-01-1238-Q007", "sibling_text": "if crack on deck and need to do welding which welding to do process what are the checks to do welding how to ensure welding is satisfactory", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Crack and leak repair — deck plate, steam line, air receiver and other shipboard cracks", "cross_family": false }, { "answer_id": "PW-327-003", "score": 0.6550219058990479, "sibling_score": 0.6550219058990479, "answer_score": null, "sibling_qid": "MUM-2022-09-2145-Q010", "sibling_text": "if in drydock crack on shell plate welding action if no class surveyor available", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "3. Shell / deck plate repair and renewal in dry dock (class context)", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.6335021257400513, "sibling_score": 0.6335021257400513, "answer_score": null, "sibling_qid": "MUM-2026-06-3514-Q007", "sibling_text": "welding in boiler steam drum how to proceed if crack is present", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": true } ] }, { "qid": "MUM-2025-08-2380-Q004", "text": "One nut and bolt is loosing oftenly your actions", "family": "Workshop & Welding", "subtopic": "Nut-Bolt Loosening / Locking Arrangements", "tid": "MUM-2025-08-2380", "tray": "review", "candidates": [ { "answer_id": "TBR-TT-P02-002", "score": 0.6656447052955627, "sibling_score": 0.6656447052955627, "answer_score": null, "sibling_qid": "MUM-2026-04-2670-Q003", "sibling_text": "nut bolt lossening frequently reasons what to do to prevent", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Checking tie rod tightness / slackness — stopped and running", "cross_family": false }, { "answer_id": "FB-COUP-001", "score": 0.5589615106582642, "sibling_score": 0.5589615106582642, "answer_score": null, "sibling_qid": "MUM-2026-09-3863-Q008", "sibling_text": "bolt getting loose how will you do and where else we use lock nut on ship", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What fitted bolts are, what they do, and where they sit onboard", "cross_family": true }, { "answer_id": "AE-CRP-005", "score": 0.5321670174598694, "sibling_score": 0.5321670174598694, "answer_score": 0.3878672271966934, "sibling_qid": "KOL-2019-08-3267-Q003", "sibling_text": "4s con rod nut loose what will be ur action 4 5", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": true } ] }, { "qid": "MUM-2025-08-2380-Q006", "text": "Anti heeling pump explain location working and what type of pump it is (axial flow type)", "family": "Pumps - Centrifugal & PD", "subtopic": "Centrifugal Pump", "tid": "MUM-2025-08-2380", "tray": "review", "candidates": [ { "answer_id": "HSAP-B-002", "score": 0.6576860547065735, "sibling_score": 0.6576860547065735, "answer_score": null, "sibling_qid": "CHE-2025-12-0226-Q006", "sibling_text": "hps system type of pump used why axial and radial flow pumps difference", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Hele-Shaw versus swash-plate — the real differences, suction and discharge in each, and the bent-axis cousin", "cross_family": false }, { "answer_id": "HSAP-583-A-012", "score": 0.6555923819541931, "sibling_score": 0.6555923819541931, "answer_score": null, "sibling_qid": "KOL-2021-02-3378-Q008", "sibling_text": "what is helesaw pump axial or radial working for pumping action", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Hele-Shaw against swash plate: radial and axial piston pumps compared", "cross_family": false }, { "answer_id": "PCD-P02-01", "score": 0.6492902636528015, "sibling_score": 0.6492902636528015, "answer_score": null, "sibling_qid": "KOL-2018-04-1370-Q007", "sibling_text": "centrifugal pump axial load what takes how where located", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Axial thrust in a centrifugal / multistage pump — how it is balanced", "cross_family": false } ] }, { "qid": "MUM-2025-08-2382-Q001", "text": "Risk assessment", "family": "Risk & Safety Management", "subtopic": "Enclosed Space Entry", "tid": "MUM-2025-08-2382", "tray": "review", "candidates": [ { "answer_id": "RA-MGMT-B-001", "score": 0.7985818982124329, "sibling_score": 0.7985818982124329, "answer_score": null, "sibling_qid": "KOL-2022-09-3563-Q003", "sibling_text": "risc assessment", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "How is a shipboard risk assessment prepared and carried out?", "cross_family": false }, { "answer_id": "RA-MGMT-A-001", "score": 0.7898251414299011, "sibling_score": 0.7898251414299011, "answer_score": 0.5668026149272919, "sibling_qid": "MUM-2026-08-3829-Q002", "sibling_text": "risk assessment", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "What is risk, what is hazard, and what is risk assessment?", "cross_family": false }, { "answer_id": "LVC-577-001", "score": 0.5825463354587554, "sibling_score": null, "answer_score": 0.5825463354587554, "sibling_qid": "", "sibling_text": "define likelihood and consequence in risk assessment risk has two elements likelihood and consequence the matrix rating commonly combines them by multiplying where the sms uses that method likelihood the chance probability the harm occurs how likely how often", "sibling_family": "", "via": "answer_title", "answer_title": "Define likelihood and consequence in risk assessment", "cross_family": false } ] }, { "qid": "MUM-2025-08-2388-Q002", "text": "Jobs done on ME", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-08-2388", "tray": "new", "candidates": [ { "answer_id": "ISM-2E-A-004", "score": 0.48874565958976746, "sibling_score": 0.48874565958976746, "answer_score": null, "sibling_qid": "KOC-2022-07-0966-Q018", "sibling_text": "major jobs carried out", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Shipboard jobs, machineries and maintenance areas under the Second Engineer", "cross_family": true }, { "answer_id": "DCB-OVH-008", "score": 0.48837631940841675, "sibling_score": 0.48837631940841675, "answer_score": 0.28950096815824505, "sibling_qid": "KOC-2025-10-1948-Q012", "sibling_text": "major jobs carried out", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Major ME / AE overhaul jobs carried out onboard", "cross_family": true }, { "answer_id": "AEDEC-291-001", "score": 0.4868706464767456, "sibling_score": 0.4868706464767456, "answer_score": null, "sibling_qid": "KOC-2026-05-0047-Q006", "sibling_text": "major jobs done on ae", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "1. AE decarb / overhaul — preparation and full procedure", "cross_family": true } ] }, { "qid": "MUM-2025-08-2388-Q007", "text": "Ae conrod checks", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "", "tid": "MUM-2025-08-2388", "tray": "review", "candidates": [ { "answer_id": "AECR-651-001", "score": 0.7427422404289246, "sibling_score": 0.7427422404289246, "answer_score": 0.3878820210695267, "sibling_qid": "MUM-2022-12-1037-Q023", "sibling_text": "checks on con rod of ae", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What checks do you carry out on the connecting rod of an AE / DG — inspection, overhaul checks and the trueness check?", "cross_family": false }, { "answer_id": "AE-CRP-004", "score": 0.6398293972015381, "sibling_score": 0.6398293972015381, "answer_score": null, "sibling_qid": "CHE-2026-05-0546-Q005", "sibling_text": "ae con rod checks", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE connecting-rod inspection — ovality, trueness, serrations, action if out of limit", "cross_family": true }, { "answer_id": "CRB-001", "score": 0.619899570941925, "sibling_score": 0.619899570941925, "answer_score": 0.32350815534591676, "sibling_qid": "MUM-2026-03-2951-Q008", "sibling_text": "checks on con rod", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What checks are carried out on the connecting rod at decarbonisation? Explain the ovality and trueness checks — how many readings, at which positions, with what instrument, and the permissible limit.", "cross_family": false } ] }, { "qid": "MUM-2025-08-2388-Q008", "text": "How to check ovality", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Connecting Rod & Bolts", "tid": "MUM-2025-08-2388", "tray": "review", "candidates": [ { "answer_id": "CRB-001", "score": 0.7269995808601379, "sibling_score": 0.7269995808601379, "answer_score": null, "sibling_qid": "MUM-2026-03-2951-Q009", "sibling_text": "how to check ovality", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What checks are carried out on the connecting rod at decarbonisation? Explain the ovality and trueness checks — how many readings, at which positions, with what instrument, and the permissible limit.", "cross_family": false }, { "answer_id": "AECR-651-002", "score": 0.6420266032218933, "sibling_score": 0.6420266032218933, "answer_score": 0.42926534712314607, "sibling_qid": "KOL-2024-02-3670-Q004", "sibling_text": "how to check ae con rod ovality", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you take the ovality of the AE big end in a 4-stroke, and what are the ovality limits and maximum value?", "cross_family": false }, { "answer_id": "BEB-C-004", "score": 0.6296648383140564, "sibling_score": 0.6296648383140564, "answer_score": 0.4266729235649109, "sibling_qid": "KOC-2025-12-1980-Q006", "sibling_text": "ovality range", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crankpin ovality check during a bottom end inspection", "cross_family": false } ] }, { "qid": "MUM-2025-08-2824-Q002", "text": "After dd , boiler safety valve setting .. procedure..(too many x questions ..started to give step by step not accepting)", "family": "Boilers - Mountings & Safety Devices", "subtopic": "Safety Valve", "tid": "MUM-2025-08-2824", "tray": "review", "candidates": [ { "answer_id": "ACRV-005", "score": 0.6860633492469788, "sibling_score": 0.6860633492469788, "answer_score": null, "sibling_qid": "MUM-2026-06-3549-Q005", "sibling_text": "boiler safety valve maximum questions", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": true }, { "answer_id": "BWTEST-A-001", "score": 0.6500829458236694, "sibling_score": 0.6500829458236694, "answer_score": null, "sibling_qid": "KOC-2026-05-0003-Q005", "sibling_text": "boiler safety valve setting procedure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": true }, { "answer_id": "BLR-SURV-P02-001", "score": 0.6399308443069458, "sibling_score": 0.6399308443069458, "answer_score": null, "sibling_qid": "KOL-2026-01-3904-Q003", "sibling_text": "setting of boiler safety valve cross questions in high lift safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": true } ] }, { "qid": "MUM-2025-08-2826-Q003", "text": "Which type of ship sailed on?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-08-2826", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.7892410755157471, "sibling_score": 0.7892410755157471, "answer_score": null, "sibling_qid": "CHE-2026-02-0478-Q004", "sibling_text": "this type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7696591019630432, "sibling_score": 0.7696591019630432, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.4540293276309967, "sibling_score": null, "answer_score": 0.4540293276309967, "sibling_qid": "", "sibling_text": "type a and type b ships how form and cargo set the freeboard", "sibling_family": "", "via": "answer_title", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "MUM-2025-08-2826-Q004", "text": "Main Engine type & it’s nomenclature ?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2025-08-2826", "tray": "review", "candidates": [ { "answer_id": "ENG-NOM-005", "score": 0.8324553370475769, "sibling_score": 0.8324553370475769, "answer_score": 0.46812312602996825, "sibling_qid": "MUM-2026-05-3166-Q002", "sibling_text": "main engine type it s nomenclature", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false }, { "answer_id": "CTRL-TL-002", "score": 0.7401050925254822, "sibling_score": 0.7401050925254822, "answer_score": null, "sibling_qid": "MUM-2026-03-1987-Q001", "sibling_text": "type of main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Function of a controller, and types used on board", "cross_family": false }, { "answer_id": "ETP-344-P03-001", "score": 0.718105137348175, "sibling_score": 0.718105137348175, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false } ] }, { "qid": "MUM-2025-08-2826-Q007", "text": "Undersize bearing & oversize Bearing ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Bearing Clearance", "tid": "MUM-2025-08-2826", "tray": "review", "candidates": [ { "answer_id": "BRG-NOM-005", "score": 0.8681814074516296, "sibling_score": 0.8681814074516296, "answer_score": 0.5006416797637939, "sibling_qid": "MUM-2026-05-3166-Q005", "sibling_text": "undersize bearing oversize bearing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bush, Insert, End-Loaded and Undersize Bearings — and Ordering Data", "cross_family": false }, { "answer_id": "CRB-014", "score": 0.6735318303108215, "sibling_score": 0.6735318303108215, "answer_score": 0.531523585319519, "sibling_qid": "KOL-2023-08-3632-Q002", "sibling_text": "ovality check of con rod where oversized and undersized bearings r used", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you check connecting rod ovality, and where are oversize and undersize bearings used?", "cross_family": false }, { "answer_id": "BCL-592-005", "score": 0.6551790833473206, "sibling_score": 0.6551790833473206, "answer_score": 0.4644181728363037, "sibling_qid": "KOC-2022-07-0966-Q017", "sibling_text": "what provision given on bearing for less clearance overlayer", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What provision is made in the bearing itself to accommodate low clearance?", "cross_family": false } ] }, { "qid": "MUM-2025-08-2826-Q009", "text": "Ae crankcase inspection ?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Crankcase Inspection", "tid": "MUM-2025-08-2826", "tray": "review", "candidates": [ { "answer_id": "CRKC-INSP-001", "score": 0.8573821187019348, "sibling_score": 0.8573821187019348, "answer_score": null, "sibling_qid": "MUM-2026-09-3876-Q005", "sibling_text": "crank case inspection of ae", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Routine main-engine crankcase inspection — checks as 2/E", "cross_family": false }, { "answer_id": "AE-CRP-007", "score": 0.7295481562614441, "sibling_score": 0.7295481562614441, "answer_score": null, "sibling_qid": "KOC-2026-05-0045-Q007", "sibling_text": "auxiliary engine crankcase inspection and safeties", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE big-end / bottom-end bearing — inspection, bedding, nip and crush", "cross_family": false }, { "answer_id": "CC-RELIEF-312-002", "score": 0.7208556532859802, "sibling_score": 0.7208556532859802, "answer_score": null, "sibling_qid": "MUM-2025-12-2889-Q004", "sibling_text": "crankcase inspection", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Crankcase / camcase inspection — checks and contamination", "cross_family": true } ] }, { "qid": "MUM-2025-08-2826-Q013", "text": "Bulkhead crack , Wht type of welding ?", "family": "Workshop & Welding", "subtopic": "Crack on Main Deck", "tid": "MUM-2025-08-2826", "tray": "review", "candidates": [ { "answer_id": "DUS-P4-04", "score": 0.7805174589157104, "sibling_score": 0.7805174589157104, "answer_score": 0.5108719974756241, "sibling_qid": "MUM-2026-05-3165-Q003", "sibling_text": "bulkhead crack what type of welding", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Card 4 — Crack on a bulkhead: insert welding repair and location reporting", "cross_family": true }, { "answer_id": "PLT-DBL-001", "score": 0.6906126737594604, "sibling_score": 0.6906126737594604, "answer_score": 0.5258545935153961, "sibling_qid": "MUM-2020-09-2127-Q001", "sibling_text": "how to weld an insert in a bulkhead", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "How do you weld an insert plate into a bulkhead?", "cross_family": false }, { "answer_id": "HULL-DD-001", "score": 0.6694473028182983, "sibling_score": 0.6694473028182983, "answer_score": 0.5081790566444396, "sibling_qid": "KOL-2019-10-3276-Q003", "sibling_text": "ship hull crack welding", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "1. Hull plate / shell-weld crack repair in drydock", "cross_family": true } ] }, { "qid": "MUM-2025-08-2826-Q015", "text": "How to calibrate pressure gauge ?", "family": "Gauges & Tools", "subtopic": "Pressure Gauge Calibration", "tid": "MUM-2025-08-2826", "tray": "review", "candidates": [ { "answer_id": "TPL-SENS-A-002", "score": 0.8111137747764587, "sibling_score": 0.8111137747764587, "answer_score": 0.5444122910499573, "sibling_qid": "MUM-2026-05-3165-Q005", "sibling_text": "how to calibrate pressure gauge", "sibling_family": "Gauges & Tools", "via": "sibling", "answer_title": "Pressure transmitter / transducer / switch working and calibration", "cross_family": false }, { "answer_id": "TPL-SENS-005", "score": 0.7061336040496826, "sibling_score": 0.7061336040496826, "answer_score": 0.5144953310489654, "sibling_qid": "KOC-2026-10-2217-Q006", "sibling_text": "pressure transmitter calibration", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Checking a pressure transmitter on board", "cross_family": true }, { "answer_id": "MICR-002", "score": 0.6796991229057312, "sibling_score": 0.6796991229057312, "answer_score": null, "sibling_qid": "MUM-2026-02-2580-Q003", "sibling_text": "tool how to calibrate it", "sibling_family": "Gauges & Tools", "via": "sibling", "answer_title": "Zero setting, calibration, error check and trueness", "cross_family": false } ] }, { "qid": "MUM-2025-08-2828-Q001", "text": "Type of ship, engine", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "MUM-2025-08-2828", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8351995348930359, "sibling_score": 0.8351995348930359, "answer_score": null, "sibling_qid": "MUM-2025-08-2357-Q001", "sibling_text": "type of ship type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.815255343914032, "sibling_score": 0.815255343914032, "answer_score": null, "sibling_qid": "MUM-2026-07-3668-Q004", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "AC-VE-001", "score": 0.7839050889015198, "sibling_score": 0.7839050889015198, "answer_score": null, "sibling_qid": "MUM-2026-01-2904-Q001", "sibling_text": "what type of ship engine power and nomenclature", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Volumetric efficiency: define it, and if it drops how do you improve it (with bumping clearance)?", "cross_family": false } ] }, { "qid": "MUM-2025-08-2828-Q009", "text": "EGB survey ?", "family": "Surveys - Statutory", "subtopic": "Audit", "tid": "MUM-2025-08-2828", "tray": "new", "candidates": [ { "answer_id": "ESP-A-001", "score": 0.5714239478111267, "sibling_score": 0.5714239478111267, "answer_score": null, "sibling_qid": "KOC-2024-05-0341-Q002", "sibling_text": "esp survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the Enhanced Survey Programme (ESP), and what is its purpose?", "cross_family": false }, { "answer_id": "ESP-B-001", "score": 0.5288906693458557, "sibling_score": 0.5288906693458557, "answer_score": null, "sibling_qid": "MUM-2026-06-3627-Q001", "sibling_text": "prep for esp survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "How an ESP survey is carried out — conduct, engine-room preparation & 2/E duties", "cross_family": false }, { "answer_id": "ESP-A-002", "score": 0.5253108739852905, "sibling_score": 0.5253108739852905, "answer_score": null, "sibling_qid": "KOC-2025-12-0750-Q002", "sibling_text": "enhanced survey program cross what s the survey intervel", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "On which ships is ESP applicable, under which statutory framework, and when is it carried out?", "cross_family": false } ] }, { "qid": "MUM-2025-08-2828-Q010", "text": "safety valve setting of auxiliary boiler ?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2025-08-2828", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-001", "score": 0.7575443983078003, "sibling_score": 0.7575443983078003, "answer_score": null, "sibling_qid": "MUM-2026-05-3332-Q004", "sibling_text": "setting of boiler safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.7274149656295776, "sibling_score": 0.7274149656295776, "answer_score": null, "sibling_qid": "MUM-2026-03-2935-Q013", "sibling_text": "boiler safety valve setting in presence of surveyor after survey", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.7150980830192566, "sibling_score": 0.7150980830192566, "answer_score": null, "sibling_qid": "KOC-2026-05-0034-Q010", "sibling_text": "boiler safety valve types and how safety valve is set complete procedures", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "MUM-2025-08-2828-Q011", "text": "Diff betweem improved high lift and full lift safety valve ? Internal - Refrigerant oil property, What is viscosity index", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2025-08-2828", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.6515231728553772, "sibling_score": 0.6515231728553772, "answer_score": null, "sibling_qid": "MUM-2026-06-3405-Q017", "sibling_text": "improved high lift safety valve details", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACRV-005", "score": 0.6269023418426514, "sibling_score": 0.6269023418426514, "answer_score": null, "sibling_qid": "MUM-2026-06-3429-Q010", "sibling_text": "safety valve lift difference", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": false }, { "answer_id": "VISC-IDX-002", "score": 0.5082521140575409, "sibling_score": null, "answer_score": 0.5082521140575409, "sibling_qid": "", "sibling_text": "which lube oil properties are important including vi and load bearing capacity the correct viscosity grade for the duty is the first requirement everything else qualifies it viscosity index stability of viscosity with temperature high vi preferred", "sibling_family": "", "via": "answer_title", "answer_title": "Which lube-oil properties are important, including VI and load-bearing capacity?", "cross_family": false } ] }, { "qid": "MUM-2025-09-0432-Q001", "text": "Oral written status Room check", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-09-0432", "tray": "review", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.6945955157279968, "sibling_score": 0.6945955157279968, "answer_score": null, "sibling_qid": "MUM-2026-05-3187-Q001", "sibling_text": "status of other orals and written", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": false }, { "answer_id": "EDG-P01-002", "score": 0.4973607063293457, "sibling_score": 0.4973607063293457, "answer_score": null, "sibling_qid": "CHE-2025-08-0292-Q003", "sibling_text": "wt u check in emcy gen room", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Emergency generator room — location and rounds", "cross_family": true }, { "answer_id": "EXHV-P01-001", "score": 0.4755899906158447, "sibling_score": 0.4755899906158447, "answer_score": null, "sibling_qid": "KOC-2026-08-2106-Q001", "sibling_text": "status of written oral company type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": true } ] }, { "qid": "MUM-2025-09-0432-Q002", "text": "ism when come in force", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "MUM-2025-09-0432", "tray": "new", "candidates": [ { "answer_id": "CII-P01-002", "score": 0.5815977454185486, "sibling_score": 0.5815977454185486, "answer_score": 0.37322453558444973, "sibling_qid": "CHE-2025-08-0018-Q005", "sibling_text": "cii when it came into force", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "When did CII enter into force, when are ratings issued, and the implementation timings", "cross_family": true }, { "answer_id": "BC-IMSBC-005", "score": 0.5074342489242554, "sibling_score": 0.5074342489242554, "answer_score": 0.39842012226581575, "sibling_qid": "MUM-2026-06-3603-Q001", "sibling_text": "latest amendments in ism and when", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "5. Latest IMSBC Code amendments", "cross_family": false }, { "answer_id": "AV6-P01-01", "score": 0.46501025557518005, "sibling_score": 0.46501025557518005, "answer_score": null, "sibling_qid": "KOC-2024-05-2047-Q006", "sibling_text": "new reg coming 01 05 2024", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Explain the latest Annex VI amendment or MEPC development, and state its date and status.", "cross_family": true } ] }, { "qid": "MUM-2025-09-0432-Q003", "text": "in how many stages its implemented", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "MUM-2025-09-0432", "tray": "review", "candidates": [ { "answer_id": "A6-NSEC-005", "score": 0.777559757232666, "sibling_score": 0.777559757232666, "answer_score": null, "sibling_qid": "MUM-2026-06-3625-Q002", "sibling_text": "in how many stages its implemented", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "SEEMP — Part I, II & III", "cross_family": false }, { "answer_id": "CREEP-FAT-P01-002", "score": 0.5439025163650513, "sibling_score": 0.5439025163650513, "answer_score": null, "sibling_qid": "MUM-2025-08-1160-Q008", "sibling_text": "creep complete including stages", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "What is creep, and what are its stages?", "cross_family": true }, { "answer_id": "AC-STAGE-002", "score": 0.5059806108474731, "sibling_score": 0.5059806108474731, "answer_score": null, "sibling_qid": "KOL-2025-12-2031-Q006", "sibling_text": "mac ratio btwn stages", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Intermediate pressure / pressure ratio for minimum work", "cross_family": true } ] }, { "qid": "MUM-2025-09-0432-Q004", "text": "latest amendment in ism in 2010 which amendment come", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "MUM-2025-09-0432", "tray": "new", "candidates": [ { "answer_id": "BC-IMSBC-005", "score": 0.6135405898094177, "sibling_score": 0.6135405898094177, "answer_score": 0.3371646225452423, "sibling_qid": "MUM-2026-06-3603-Q001", "sibling_text": "latest amendments in ism and when", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "5. Latest IMSBC Code amendments", "cross_family": false }, { "answer_id": "ISM-ELEM-003", "score": 0.5141777396202087, "sibling_score": 0.5141777396202087, "answer_score": null, "sibling_qid": "MUM-2020-09-0004-Q002", "sibling_text": "ism code element 10", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": false }, { "answer_id": "STP-SEW-001", "score": 0.5053260326385498, "sibling_score": 0.5053260326385498, "answer_score": null, "sibling_qid": "KOC-2025-10-0678-Q003", "sibling_text": "2010 amendment of stp", "sibling_family": "MARPOL - Annex IV (Sewage)", "via": "sibling", "answer_title": "MARPOL Annex IV — scope, applicability and certification", "cross_family": true } ] }, { "qid": "MUM-2025-09-0432-Q005", "text": "Seq survey what all checks to be done", "family": "Surveys - Statutory", "subtopic": "Anniversary Survey", "tid": "MUM-2025-09-0432", "tray": "review", "candidates": [ { "answer_id": "SEQ-330-001", "score": 0.8152022957801819, "sibling_score": 0.8152022957801819, "answer_score": null, "sibling_qid": "MUM-2026-06-3625-Q004", "sibling_text": "seq survey what all checks to be done", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Safety Equipment survey — what it is, its scope, and what is checked", "cross_family": false }, { "answer_id": "SEQ-330-003", "score": 0.5561425685882568, "sibling_score": 0.5561425685882568, "answer_score": 0.39634596556425095, "sibling_qid": "KOC-2024-09-0418-Q005", "sibling_text": "seq survey apart from lsa and ffa", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "SEQ survey scope apart from LSA, FFA and navigation items", "cross_family": false }, { "answer_id": "SEQ-330-002", "score": 0.552022397518158, "sibling_score": 0.552022397518158, "answer_score": null, "sibling_qid": "KOC-2024-12-2058-Q003", "sibling_text": "explain seq survey preparations as a second engineer", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Preparing the ship for the Safety Equipment survey as Second Engineer", "cross_family": false } ] }, { "qid": "MUM-2025-09-0432-Q006", "text": "How to do emergency steering in that survey", "family": "Surveys - Statutory", "subtopic": "Audit", "tid": "MUM-2025-09-0432", "tray": "review", "candidates": [ { "answer_id": "SG-055-B-001", "score": 0.751730740070343, "sibling_score": 0.751730740070343, "answer_score": 0.4415246546268463, "sibling_qid": "MUM-2026-06-3625-Q005", "sibling_text": "how to do emergency steering in that survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Emergency steering operation and the deadman handle", "cross_family": false }, { "answer_id": "RVSG-213-004", "score": 0.5820614099502563, "sibling_score": 0.5820614099502563, "answer_score": null, "sibling_qid": "KOC-2026-09-2180-Q008", "sibling_text": "emergency steering of vane type steering gear", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Redundancy, emergency steering, local operation & bypass", "cross_family": true }, { "answer_id": "STG-055-C-002", "score": 0.5500205159187317, "sibling_score": 0.5500205159187317, "answer_score": null, "sibling_qid": "KOL-2025-09-1030-Q011", "sibling_text": "emergency steering drill interval", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "SOLAS steering-gear requirements, tests and drills", "cross_family": true } ] }, { "qid": "MUM-2025-09-0432-Q012", "text": "Bulbous bow shape of it in your ship", "family": "", "subtopic": "Bulbous Bow", "tid": "MUM-2025-09-0432", "tray": "review", "candidates": [ { "answer_id": "PPS-230-006", "score": 0.6734844446182251, "sibling_score": 0.6734844446182251, "answer_score": null, "sibling_qid": "MUM-2026-02-0782-Q011", "sibling_text": "bulbous bow how it is connected to ship shape of bow", "sibling_family": "", "via": "sibling", "answer_title": "Fore-end / fore-peak structure: draw and describe", "cross_family": false }, { "answer_id": "BC-IMSBC-002", "score": 0.537818431854248, "sibling_score": 0.537818431854248, "answer_score": null, "sibling_qid": "MUM-2022-08-0040-Q002", "sibling_text": "since i sailed on container and bulk carrier he started with what s the design difference the bulbous bow of container and bulk carrier and why it is so", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "2. Bulk carrier construction and structural design", "cross_family": false }, { "answer_id": "SHIPTYPE-BTC-002", "score": 0.5021792054176331, "sibling_score": 0.5021792054176331, "answer_score": null, "sibling_qid": "CHE-2025-11-0082-Q008", "sibling_text": "why bow flare is big in container compared to bulk carrier", "sibling_family": "", "via": "sibling", "answer_title": "Why a container ship has more bow flare than a bulk carrier or tanker", "cross_family": false } ] }, { "qid": "MUM-2025-09-0432-Q013", "text": "How it is connected to the ship hull", "family": "Ship Construction & Stability", "subtopic": "", "tid": "MUM-2025-09-0432", "tray": "review", "candidates": [ { "answer_id": "CHK-RM-001", "score": 0.8113508820533752, "sibling_score": 0.8113508820533752, "answer_score": null, "sibling_qid": "MUM-2026-06-3625-Q012", "sibling_text": "how it is connected to the ship hull", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "What are chocks? Function, types, where fitted and how placed — which have the biggest area, and how does the bedplate connect to the hull?", "cross_family": false }, { "answer_id": "STS-P02-003", "score": 0.6345958113670349, "sibling_score": 0.6345958113670349, "answer_score": 0.517864230275154, "sibling_qid": "CHE-2026-02-0115-Q006", "sibling_text": "how sterntube is connected to the ship explain", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "STS-P02-03 - Stern tube arrangement, fitting in hull and shaft support", "cross_family": true }, { "answer_id": "ANCH-CHN-A-004", "score": 0.620629072189331, "sibling_score": 0.620629072189331, "answer_score": null, "sibling_qid": "KOL-2017-01-0050-Q008", "sibling_text": "how anchor is connected to ship", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Cable arrangement: anchor to bitter end, and the bitter-end release", "cross_family": true } ] }, { "qid": "MUM-2025-09-0433-Q001", "text": "Oral written status", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-09-0433", "tray": "review", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.7968797087669373, "sibling_score": 0.7968797087669373, "answer_score": null, "sibling_qid": "MUM-2026-05-3187-Q001", "sibling_text": "status of other orals and written", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.5953373908996582, "sibling_score": 0.5953373908996582, "answer_score": null, "sibling_qid": "KOC-2026-08-2106-Q001", "sibling_text": "status of written oral company type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": true }, { "answer_id": "AE-CRP-005", "score": 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What is a Recognized Organization, how is it recognized by a flag State, and how can a classification society become one?", "cross_family": true } ] }, { "qid": "MUM-2025-09-0448-Q013", "text": "■how to avoid it", "family": "", "subtopic": "", "tid": "MUM-2025-09-0448", "tray": "new", "candidates": [ { "answer_id": "VIB-BAL-A-001", "score": 0.5610061883926392, "sibling_score": 0.5610061883926392, "answer_score": null, "sibling_qid": "KOL-2021-08-1622-Q003", "sibling_text": "prevent", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "VIB-A-01 — Engine vibration — what it is, its types and causes, and how it is controlled", "cross_family": false }, { "answer_id": "IM-GW-C-001", "score": 0.5119102001190186, "sibling_score": 0.5119102001190186, "answer_score": null, "sibling_qid": "KOC-2024-01-1318-Q005", "sibling_text": "crawling and cogging how to avoid", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Cogging, crawling and harmonic effects in induction motors", "cross_family": false }, { "answer_id": "CORR-DEZ-002", "score": 0.49302995204925537, "sibling_score": 0.49302995204925537, "answer_score": 0.3394720613956451, "sibling_qid": "KOC-2025-06-1916-Q014", "sibling_text": "what are the ways in which dezincification can be avoided", "sibling_family": "Materials & Metallurgy", "via": "sibling", "answer_title": "How can dezincification be avoided?", "cross_family": false } ] }, { "qid": "MUM-2025-09-0448-Q020", "text": "■I-ISM", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-09-0448", "tray": "review", "candidates": [ { "answer_id": "ISM-AUD-P02-002", "score": 0.7148923873901367, "sibling_score": 0.7148923873901367, "answer_score": null, "sibling_qid": "MUM-2026-06-3622-Q010", "sibling_text": "i ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM Code — what it is, purpose, objectives and structure", "cross_family": true }, { "answer_id": "ISM-DPA-002", "score": 0.6150029897689819, "sibling_score": 0.6150029897689819, "answer_score": null, "sibling_qid": "KOC-2023-03-0172-Q004", "sibling_text": "ism who is responsible for ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "DPA basis : which convention, which code, and who is responsible for ISM", "cross_family": true }, { "answer_id": "ISM-ELEM-002", "score": 0.6111566424369812, "sibling_score": 0.6111566424369812, "answer_score": 0.2866947174072266, "sibling_qid": "MUM-2026-05-3136-Q006", "sibling_text": "ism explain", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the ISM Code?", "cross_family": true } ] }, { "qid": "MUM-2025-09-0448-Q027", "text": "■type of cable used for supply to steering gear", "family": "Steering Gear & Hydraulics", "subtopic": "Counter-Balance Valve", "tid": "MUM-2025-09-0448", "tray": "review", "candidates": [ { "answer_id": "SGM-ELEC-002", "score": 0.7870381474494934, "sibling_score": 0.7870381474494934, "answer_score": 0.42799261808395384, "sibling_qid": "MUM-2026-06-3456-Q020", "sibling_text": "type of cable used for steering gear motor", "sibling_family": "Electrical - 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Give the definition and name some.", "cross_family": false }, { "answer_id": "ISMNC-003", "score": 0.6738211512565613, "sibling_score": 0.6738211512565613, "answer_score": 0.4364870876073837, "sibling_qid": "MUM-2025-01-0238-Q006", "sibling_text": "major non conformity and non conformity", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Differentiate between a major non-conformity and a non-conformity under the ISM Code.", "cross_family": false }, { "answer_id": "ISMNC-005", "score": 0.613568127155304, "sibling_score": 0.613568127155304, "answer_score": 0.4630050539970398, "sibling_qid": "KOL-2025-04-0931-Q012", "sibling_text": "example for major non confirmity", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Give examples of a non-conformity and of a major non-conformity.", "cross_family": false } ] }, { "qid": "MUM-2025-09-0452-Q001", "text": "Staus of other functions and written", "family": "__META__ (non-exam)", "subtopic": "", "tid": 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What is the difference between a classification society, a Recognized Organization, and statutory certification?", "cross_family": true }, { "answer_id": "IACS-324-003", "score": 0.5525439381599426, "sibling_score": 0.5525439381599426, "answer_score": null, "sibling_qid": "KOC-2023-12-0255-Q002", "sibling_text": "how ro is recognized by any flag state steps", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "3. What is a Recognized Organization, how is it recognized by a flag State, and how can a classification society become one?", "cross_family": true } ] }, { "qid": "MUM-2025-09-0452-Q012", "text": "■how to avoid it", "family": "", "subtopic": "", "tid": "MUM-2025-09-0452", "tray": "new", "candidates": [ { "answer_id": "VIB-BAL-A-001", "score": 0.5610061883926392, "sibling_score": 0.5610061883926392, "answer_score": null, "sibling_qid": "KOL-2021-08-1622-Q003", "sibling_text": "prevent", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "VIB-A-01 — Engine vibration — what it is, its types and causes, and how it is controlled", "cross_family": false }, { "answer_id": "IM-GW-C-001", "score": 0.5119102001190186, "sibling_score": 0.5119102001190186, "answer_score": null, "sibling_qid": "KOC-2024-01-1318-Q005", "sibling_text": "crawling and cogging how to avoid", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Cogging, crawling and harmonic effects in induction motors", "cross_family": false }, { "answer_id": "CORR-DEZ-002", "score": 0.493029922246933, "sibling_score": 0.493029922246933, "answer_score": 0.3394720360636711, "sibling_qid": "KOC-2025-06-1916-Q014", "sibling_text": "what are the ways in which dezincification can be avoided", "sibling_family": "Materials & Metallurgy", "via": "sibling", "answer_title": "How can dezincification be avoided?", "cross_family": false } ] }, { "qid": "MUM-2025-09-0452-Q019", "text": "■I-ISM", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-09-0452", "tray": "review", "candidates": [ { "answer_id": "ISM-AUD-P02-002", "score": 0.7148923873901367, "sibling_score": 0.7148923873901367, "answer_score": null, "sibling_qid": "MUM-2026-06-3622-Q010", "sibling_text": "i ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM Code — what it is, purpose, objectives and structure", "cross_family": true }, { "answer_id": "ISM-DPA-002", "score": 0.6150029301643372, "sibling_score": 0.6150029301643372, "answer_score": null, "sibling_qid": "KOC-2023-03-0172-Q004", "sibling_text": "ism who is responsible for ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "DPA basis : which convention, which code, and who is responsible for ISM", "cross_family": true }, { "answer_id": "ISM-ELEM-002", "score": 0.6111565828323364, "sibling_score": 0.6111565828323364, "answer_score": 0.2866947174072266, "sibling_qid": "MUM-2026-05-3136-Q006", "sibling_text": "ism explain", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the ISM Code?", "cross_family": true } ] }, { "qid": "MUM-2025-09-0453-Q005", "text": "Forepeak tank construction?", "family": "", "subtopic": "Peak Tank Construction", "tid": "MUM-2025-09-0453", "tray": "review", "candidates": [ { "answer_id": "PPS-230-006", "score": 0.7317647933959961, "sibling_score": 0.7317647933959961, "answer_score": null, "sibling_qid": "MUM-2026-08-3829-Q005", "sibling_text": "forepeak tank construction", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Fore-end / fore-peak structure: draw and describe", "cross_family": false }, { "answer_id": "BSBH-420-002", "score": 0.6228275299072266, "sibling_score": 0.6228275299072266, "answer_score": 0.5047702848911285, "sibling_qid": "MUM-2026-05-3340-Q009", "sibling_text": "forepeak construction", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Fore-end / forepeak construction forward of the collision bulkhead — members and cross-section", "cross_family": false }, { "answer_id": "BCFS-002", "score": 0.5429025888442993, "sibling_score": 0.5429025888442993, "answer_score": null, "sibling_qid": "MUM-2024-09-1093-Q003", "sibling_text": "cascade tank construction", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "The cascade tank — purpose, location, construction, temperature control and abnormal steaming", "cross_family": false } ] }, { "qid": "MUM-2025-09-0453-Q006", "text": "Ism code", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "MUM-2025-09-0453", "tray": "review", "candidates": [ { "answer_id": "ISM-ELEM-002", "score": 0.7958571314811707, "sibling_score": 0.7958571314811707, "answer_score": 0.4164786279201507, "sibling_qid": "MUM-2026-06-3653-Q001", "sibling_text": "ism code", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the ISM Code?", "cross_family": false }, { "answer_id": "ISM-ELEM-003", "score": 0.4157224684953689, "sibling_score": null, "answer_score": 0.4157224684953689, "sibling_qid": "", "sibling_text": "elements chapters structure of the ism code part a implementation the 12 elements 1 general 1 1 definitions 1 2 objectives 1 3 application 1 4 functional requirements for an sms", "sibling_family": "", "via": "answer_title", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": false }, { "answer_id": "ISM-AUD-P02-002", "score": 0.38902434110641476, "sibling_score": null, "answer_score": 0.38902434110641476, "sibling_qid": "", "sibling_text": "ism code what it is purpose objectives and structure full name carries both limbs safe operation of ships and pollution prevention never drop the pollution half adopted by resolution a 741 18 in 1993 given legal force through solas chapter ix in force 1 july 1998 phase 1", "sibling_family": "", "via": "answer_title", "answer_title": "ISM Code — what it is, purpose, objectives and structure", "cross_family": false } ] }, { "qid": "MUM-2025-09-0457-Q001", "text": "what types of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-09-0457", "tray": "review", "candidates": [ { "answer_id": "LLST-AB-001", "score": 0.826423168182373, "sibling_score": 0.826423168182373, "answer_score": 0.5283619523048401, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.7841598987579346, "sibling_score": 0.7841598987579346, "answer_score": 0.5194369912147522, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.7817375659942627, "sibling_score": 0.7817375659942627, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false } ] }, { "qid": "MUM-2025-09-0457-Q006", "text": "aft peak tank construction", "family": "", "subtopic": "Peak Tank Construction", "tid": "MUM-2025-09-0457", "tray": "review", "candidates": [ { "answer_id": "PPS-230-006", "score": 0.6585270166397095, "sibling_score": 0.6585270166397095, "answer_score": null, "sibling_qid": "MUM-2026-08-3829-Q005", "sibling_text": "forepeak tank construction", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Fore-end / fore-peak structure: draw and describe", "cross_family": false }, { "answer_id": "BCFS-002", "score": 0.5375148057937622, "sibling_score": 0.5375148057937622, "answer_score": null, "sibling_qid": "MUM-2024-09-1093-Q003", "sibling_text": "cascade tank construction", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "The cascade tank — purpose, location, construction, temperature control and abnormal steaming", "cross_family": false }, { "answer_id": "BSBH-420-002", "score": 0.5264198184013367, "sibling_score": 0.5264198184013367, "answer_score": 0.4669843018054962, "sibling_qid": "KOC-2024-05-0347-Q005", "sibling_text": "forepeak construction", "sibling_family": "", "via": "sibling", "answer_title": "Fore-end / forepeak construction forward of the collision bulkhead — members and cross-section", "cross_family": false } ] }, { "qid": "MUM-2025-09-0457-Q009", "text": "ism and iso difference", "family": "ISM Code", "subtopic": "TQM / Quality Management", "tid": "MUM-2025-09-0457", "tray": "review", "candidates": [ { "answer_id": "WIDAS-SMK-007", "score": 0.682930588722229, "sibling_score": 0.682930588722229, "answer_score": null, "sibling_qid": "MUM-2026-03-0855-Q003", "sibling_text": "diff between iso ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Smoke sampling line — testing, confirming clear, and what is in the tube", "cross_family": false }, { "answer_id": "ISM-AUD-P02-002", "score": 0.5004829168319702, "sibling_score": 0.5004829168319702, "answer_score": null, "sibling_qid": "MUM-2025-10-0519-Q004", "sibling_text": "what is ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM Code — what it is, purpose, objectives and structure", "cross_family": false }, { "answer_id": "ISM-SMCDOC-A-001", "score": 0.4982219338417053, "sibling_score": 0.4982219338417053, "answer_score": null, "sibling_qid": "KOL-2017-03-0075-Q005", "sibling_text": "interim ism and ism code significance", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM certificates: the DOC and SMC family", "cross_family": false } ] }, { "qid": "MUM-2025-09-0457-Q010", "text": "example of iso in fuel latest amendment", "family": "MARPOL - General & Compliance", "subtopic": "Latest Fuels", "tid": "MUM-2025-09-0457", "tray": "new", "candidates": [ { "answer_id": "NBAB-574-002", "score": 0.6100572943687439, "sibling_score": 0.6100572943687439, "answer_score": null, "sibling_qid": "KOL-2022-05-4009-Q011", "sibling_text": "iso 8217 2017 ammendment in fuel oil", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Bunker analysis suggests used or burnt lubricating oil — which parameters and tests identify it?", "cross_family": false }, { "answer_id": "FQCC-583-A-002", "score": 0.5475778579711914, "sibling_score": 0.5475778579711914, "answer_score": 0.41722404658794404, "sibling_qid": "MUM-2026-05-3258-Q002", "sibling_text": "fuel standard which iso difference between previous fuel grade iso and new one", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "ISO 8217 — the standard, and what changed from 2017 to 2024", "cross_family": true }, { "answer_id": "BDN-001-002", "score": 0.543814480304718, "sibling_score": 0.543814480304718, "answer_score": null, "sibling_qid": "MUM-2025-12-0618-Q011", "sibling_text": "latest fuel amendment", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Latest amendment — the flashpoint entry", "cross_family": true } ] }, { "qid": "MUM-2025-09-0458-Q001", "text": "Type of ship sailed.", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-09-0458", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8459994196891785, "sibling_score": 0.8459994196891785, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8450109362602234, "sibling_score": 0.8450109362602234, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.793106198310852, "sibling_score": 0.793106198310852, "answer_score": null, "sibling_qid": "CHE-2026-03-0253-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "MUM-2025-09-0458-Q004", "text": "Before discharging what checks to carry out as per ISM?", "family": "MARPOL - Annex I (Oil)", "subtopic": "Oil Discharge Criteria", "tid": "MUM-2025-09-0458", "tray": "new", "candidates": [ { "answer_id": "IGAT-583-001", "score": 0.6107282042503357, "sibling_score": 0.6107282042503357, "answer_score": null, "sibling_qid": "MUM-2025-11-0555-Q002", "sibling_text": "before discharging ig alarm and cargo checks", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "State all the alarms, trips and safety cut-outs provided on a tanker inert gas (IG) system.", "cross_family": true }, { "answer_id": "ESE-P01-005", "score": 0.5368543863296509, "sibling_score": 0.5368543863296509, "answer_score": null, "sibling_qid": "KOL-2018-03-3962-Q003", "sibling_text": "after discharging u have to do tank inspection tell all the steps and checks to be made before entry", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "Cargo tank, pump-room, ballast tank or duct-keel entry preparation", "cross_family": true }, { "answer_id": "OWS-15PPM-001", "score": 0.5223149061203003, "sibling_score": 0.5223149061203003, "answer_score": null, "sibling_qid": "KOL-2019-08-0317-Q006", "sibling_text": "what all checks ur going to carry out before running ows n checks while ows running", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "MUM-2025-09-0459-Q001", "text": "Risk assessment?", "family": "Risk & Safety Management", "subtopic": "Enclosed Space Entry", "tid": "MUM-2025-09-0459", "tray": "review", "candidates": [ { "answer_id": "RA-MGMT-B-001", "score": 0.7977879643440247, "sibling_score": 0.7977879643440247, "answer_score": null, "sibling_qid": "KOL-2022-09-3563-Q003", "sibling_text": "risc assessment", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "How is a shipboard risk assessment prepared and carried out?", "cross_family": false }, { "answer_id": "RA-MGMT-A-001", "score": 0.7891297936439514, "sibling_score": 0.7891297936439514, "answer_score": 0.566388589143753, "sibling_qid": "MUM-2026-08-3829-Q002", "sibling_text": "risk assessment", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "What is risk, what is hazard, and what is risk assessment?", "cross_family": false }, { "answer_id": "LVC-577-001", "score": 0.5820225715637207, "sibling_score": null, "answer_score": 0.5820225715637207, "sibling_qid": "", "sibling_text": "define likelihood and consequence in risk assessment risk has two elements likelihood and consequence the matrix rating commonly combines them by multiplying where the sms uses that method likelihood the chance probability the harm occurs how likely how often", "sibling_family": "", "via": "answer_title", "answer_title": "Define likelihood and consequence in risk assessment", "cross_family": false } ] }, { "qid": "MUM-2025-09-0459-Q002", "text": "Panting stringer?", "family": "Boilers - Operations & Firing", "subtopic": "Black Smoke / Panting", "tid": "MUM-2025-09-0459", "tray": "review", "candidates": [ { "answer_id": "PPS-230-002", "score": 0.7420279383659363, "sibling_score": 0.7420279383659363, "answer_score": 0.3007119372487068, "sibling_qid": "MUM-2026-03-0864-Q007", "sibling_text": "panting stringer", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Panting beams and panting stringers: purpose in the forward structure", "cross_family": false }, { "answer_id": "PPS-230-001", "score": 0.6920285224914551, "sibling_score": 0.6920285224914551, "answer_score": 0.2718482807278633, "sibling_qid": "MUM-2026-08-3828-Q002", "sibling_text": "panting stringer", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Panting: what it is and how the ship is protected", "cross_family": true }, { "answer_id": "PPS-230-005", "score": 0.5543662905693054, "sibling_score": 0.5543662905693054, "answer_score": 0.27851276844739914, "sibling_qid": "KOL-2022-07-0660-Q007", "sibling_text": "panting arrangements", "sibling_family": "", "via": "sibling", "answer_title": "Panting and pounding arrangements: extent and alternative members", "cross_family": false } ] }, { "qid": "MUM-2025-09-0464-Q006", "text": "Diff between: safety and security", "family": "Risk & Safety Management", "subtopic": "Safety vs Security", "tid": "MUM-2025-09-0464", "tray": "review", "candidates": [ { "answer_id": "MR-DS-PV-B-003", "score": 0.7201328873634338, "sibling_score": 0.7201328873634338, "answer_score": null, "sibling_qid": "MUM-2026-07-3681-Q004", "sibling_text": "safety vs security", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "3. Alarms, trips, valves, and abnormal conditions of the deck seal", "cross_family": false }, { "answer_id": "ISPS-SL-003", "score": 0.6153867244720459, "sibling_score": 0.6153867244720459, "answer_score": 0.38427915573120114, "sibling_qid": "KOL-2025-09-1061-Q002", "sibling_text": "security 2 3 difference", "sibling_family": "ISPS", "via": "sibling", "answer_title": "Security levels — who sets them, ship vs port, level 2 vs 3", "cross_family": true }, { "answer_id": "ACRV-005", "score": 0.5917139053344727, "sibling_score": 0.5917139053344727, "answer_score": 0.368582147359848, "sibling_qid": "KOC-2025-03-1031-Q017", "sibling_text": "diff bw safety vv relief vv", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": true } ] }, { "qid": "MUM-2025-09-0464-Q008", "text": "Steering gear room arrangement", "family": "Steering Gear & Hydraulics", "subtopic": "Frame System / Pump Type", "tid": "MUM-2025-09-0464", "tray": "review", "candidates": [ { "answer_id": "STEER-055-A-001", "score": 0.8530974984169006, "sibling_score": 0.8530974984169006, "answer_score": 0.46911239027976986, "sibling_qid": "MUM-2026-05-3339-Q008", "sibling_text": "steering gear room arrangement", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Steering gear — construction, types and working", "cross_family": false }, { "answer_id": "TLM-218-001", "score": 0.6816793084144592, "sibling_score": 0.6816793084144592, "answer_score": null, "sibling_qid": "KOL-2019-02-1440-Q002", "sibling_text": "rudder control from bridge to steering gear room", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Helm order from bridge to rudder — the full sequence", "cross_family": false }, { "answer_id": "STEER-055-A-005", "score": 0.6776373982429504, "sibling_score": 0.6776373982429504, "answer_score": null, "sibling_qid": "CHE-2026-03-0487-Q005", "sibling_text": "steering room checks when u enter engine room", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Checks, clearances, trials and steering-room duties", "cross_family": false } ] }, { "qid": "MUM-2025-09-0466-Q001", "text": "what is transom space", "family": "Ship Construction & Stability", "subtopic": "Stern Frame / Transom", "tid": "MUM-2025-09-0466", "tray": "review", "candidates": [ { "answer_id": "DUS-P5-03", "score": 0.7206817269325256, "sibling_score": 0.7206817269325256, "answer_score": null, "sibling_qid": "NOI-2026-09-0006-Q003", "sibling_text": "transom space", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Stern frame construction, cross-section and rudder-axis sketch", "cross_family": false }, { "answer_id": "PPS-230-004", "score": 0.5457918047904968, "sibling_score": 0.5457918047904968, "answer_score": null, "sibling_qid": "NOI-2026-09-0006-Q004", "sibling_text": "panting pounding arrangements in transom space", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Forward strengthening to resist pounding / slamming", "cross_family": false }, { "answer_id": "BHD-TYP-C-004", "score": 0.4657115340232849, "sibling_score": 0.4657115340232849, "answer_score": null, "sibling_qid": "KOC-2025-12-0741-Q004", "sibling_text": "what is wash bulkhead in transverse direction", "sibling_family": "", "via": "sibling", "answer_title": "Wash (swash) bulkhead — purpose and how it works", "cross_family": false } ] }, { "qid": "MUM-2025-09-0466-Q004", "text": "What is free surface effect", "family": "Ship Construction & Stability", "subtopic": "Static / Dynamic Stability/damage stability", "tid": "MUM-2025-09-0466", "tray": "review", "candidates": [ { "answer_id": "FSE-P01-001", "score": 0.6859635710716248, "sibling_score": 0.6859635710716248, "answer_score": 0.46197029352188107, "sibling_qid": "CHE-2026-08-3900-Q001", "sibling_text": "explain free surface effect", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "What is free surface effect? Explain the basic concept.", "cross_family": false }, { "answer_id": "FSE-P02-001", "score": 0.471564120054245, "sibling_score": null, "answer_score": 0.471564120054245, "sibling_qid": "", "sibling_text": "reducing and correcting free surface effect in practice fse is a virtual rise of g i e a virtual loss of gm m is fixed by the waterplane and does not move free surface correction rise of g i tank w in metres the liquid density is in it not just geometry", "sibling_family": "", "via": "answer_title", "answer_title": "Reducing and correcting free surface effect in practice", "cross_family": false }, { "answer_id": "FSE-P03-001", "score": 0.4632913053035736, "sibling_score": null, "answer_score": 0.4632913053035736, "sibling_qid": "", "sibling_text": "1 draw and explain free surface effect a free surface exists whenever a tank is slack not empty not pressed up on heeling liquid shifts to the low side the wedge transfer moves the liquid s centroid", "sibling_family": "", "via": "answer_title", "answer_title": "1. Draw and explain free surface effect", "cross_family": false } ] }, { "qid": "MUM-2025-09-0466-Q005", "text": "How to reduce rolling MEP", "family": "", "subtopic": "Static / Dynamic Stability", "tid": "MUM-2025-09-0466", "tray": "new", "candidates": [ { "answer_id": "BK-001", "score": 0.541901171207428, "sibling_score": 0.541901171207428, "answer_score": null, "sibling_qid": "KOC-2025-07-0633-Q017", "sibling_text": "how its reducing rolling", "sibling_family": "", "via": "sibling", "answer_title": "What is a bilge keel and what is its purpose?", "cross_family": false }, { "answer_id": "BK-002", "score": 0.5085158348083496, "sibling_score": 0.5085158348083496, "answer_score": 0.3176204219460487, "sibling_qid": "KOC-2022-10-0107-Q006", "sibling_text": "how it reduces rolling explain with time period of rolling equation", "sibling_family": "", "via": "sibling", "answer_title": "How does a bilge keel reduce rolling, and how does it relate to roll period and radius of gyration?", "cross_family": false }, { "answer_id": "PAR-ROLL-005", "score": 0.49621516466140747, "sibling_score": 0.49621516466140747, "answer_score": 0.2680773377418518, "sibling_qid": "KOL-2020-03-0405-Q002", "sibling_text": "parametric rolling and measures to reduce same", "sibling_family": "", "via": "sibling", "answer_title": "05. Measures and operational actions to avoid or counter it", "cross_family": false } ] }, { "qid": "MUM-2025-09-0466-Q009", "text": "What is back less clearance", "family": "2-Stroke - Components (Other)", "subtopic": "Running Clearances (Bumping/Jumping)", "tid": "MUM-2025-09-0466", "tray": "new", "candidates": [ { "answer_id": "PRING-CLR-A-002", "score": 0.5268334746360779, "sibling_score": 0.5268334746360779, "answer_score": null, "sibling_qid": "KOC-2023-10-1820-Q006", "sibling_text": "butt clearance", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston-ring clearances and calibration — butt, axial, radial, wear limits", "cross_family": false }, { "answer_id": "RUN-CLR-002", "score": 0.49882519245147705, "sibling_score": 0.49882519245147705, "answer_score": null, "sibling_qid": "MUM-2026-06-3470-Q004", "sibling_text": "bumping clearance", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Bumping clearance — what it is, why it matters, effects, and how it is adjusted", "cross_family": false }, { "answer_id": "BCL-592-005", "score": 0.48755237460136414, "sibling_score": 0.48755237460136414, "answer_score": null, "sibling_qid": "KOC-2022-07-0966-Q017", "sibling_text": "what provision given on bearing for less clearance overlayer", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What provision is made in the bearing itself to accommodate low clearance?", "cross_family": true } ] }, { "qid": "MUM-2025-09-0467-Q002", "text": "Solas emg gen", "family": "Electrical - Generator & Alternator", "subtopic": "Emergency DG", "tid": "MUM-2025-09-0467", "tray": "new", "candidates": [ { "answer_id": "EDG-P01-001", "score": 0.6034809947013855, "sibling_score": 0.6034809947013855, "answer_score": null, "sibling_qid": "MUM-2024-07-1441-Q004", "sibling_text": "emg gen solas requirements", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Emergency source of power — the SOLAS requirements", "cross_family": false }, { "answer_id": "EMCY-DG-P03-001", "score": 0.587719738483429, "sibling_score": 0.587719738483429, "answer_score": 0.28448637723922726, "sibling_qid": "MUM-2025-12-1838-Q002", "sibling_text": "emg gen starting method", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Emergency generator — means of starting, starting motor & SOLAS arrangements", "cross_family": false }, { "answer_id": "EDG-P01-004", "score": 0.5555528998374939, "sibling_score": 0.5555528998374939, "answer_score": null, "sibling_qid": "CHE-2026-04-0141-Q008", "sibling_text": "emg generator how you tried from ecr x", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Emergency generator — explain it as a 2nd Engineer", "cross_family": false } ] }, { "qid": "MUM-2025-09-0468-Q002", "text": "Type of Ship, which attempt, written status", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-09-0468", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.7329898476600647, "sibling_score": 0.7329898476600647, "answer_score": null, "sibling_qid": "KOC-2026-08-2106-Q001", "sibling_text": "status of written oral company type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.6877425312995911, "sibling_score": 0.6877425312995911, "answer_score": null, "sibling_qid": "MUM-2026-06-3459-Q001", "sibling_text": "type of ship sail and status of other function", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.6714911460876465, "sibling_score": 0.6714911460876465, "answer_score": 0.4349912852048874, "sibling_qid": "CHE-2026-05-0614-Q001", "sibling_text": "start from type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "MUM-2025-09-0472-Q001", "text": "3rd attempt", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-09-0472", "tray": "new", "candidates": [ { "answer_id": "ISM-2E-A-004", "score": 0.5023996829986572, "sibling_score": 0.5023996829986572, "answer_score": null, "sibling_qid": "KOC-2025-03-0931-Q017", "sibling_text": "works done as 3e", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Shipboard jobs, machineries and maintenance areas under the Second Engineer", "cross_family": true }, { "answer_id": "A6-NSEC-005", "score": 0.49884527921676636, "sibling_score": 0.49884527921676636, "answer_score": null, "sibling_qid": "MUM-2024-11-2777-Q007", "sibling_text": "seemp 3", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP — Part I, II & III", "cross_family": true }, { "answer_id": "SEEMP-123-B-001", "score": 0.49884524941444397, "sibling_score": 0.49884524941444397, "answer_score": null, "sibling_qid": "MUM-2026-04-3030-Q003", "sibling_text": "seemp 3", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP Part III — the ship's operational carbon-intensity (CII) plan", "cross_family": true } ] }, { "qid": "MUM-2025-09-0472-Q002", "text": "Which function?", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-09-0472", "tray": "review", "candidates": [ { "answer_id": "IMO-CODES-P03-002", "score": 0.8591871857643127, "sibling_score": 0.8591871857643127, "answer_score": null, "sibling_qid": "MUM-2026-03-0815-Q003", "sibling_text": "which function", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": false }, { "answer_id": "AVR-EXC-A-001", "score": 0.555498480796814, "sibling_score": 0.555498480796814, "answer_score": null, "sibling_qid": "CHE-2026-02-0332-Q009", "sibling_text": "avr function", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "What is the purpose and function of the AVR?", "cross_family": true }, { "answer_id": "CHK-330-001", "score": 0.554787814617157, "sibling_score": 0.554787814617157, "answer_score": null, "sibling_qid": "KOC-2022-05-1785-Q007", "sibling_text": "function of chock", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What is the purpose and function of main engine chocks?", "cross_family": true } ] }, { "qid": "MUM-2025-09-0472-Q003", "text": "Status of other functions?", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-09-0472", "tray": "new", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.5764543414115906, "sibling_score": 0.5764543414115906, "answer_score": null, "sibling_qid": "MUM-2026-05-3187-Q001", "sibling_text": "status of other orals and written", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": false }, { "answer_id": "IMO-CODES-P03-002", "score": 0.5637672543525696, "sibling_score": 0.5637672543525696, "answer_score": null, "sibling_qid": "MUM-2026-03-0815-Q003", "sibling_text": "which function", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": false }, { "answer_id": "AVR-EXC-B-001", "score": 0.5095140933990479, "sibling_score": 0.5095140933990479, "answer_score": null, "sibling_qid": "KOC-2025-12-1676-Q004", "sibling_text": "explain status avr", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Explain the AVR working principle and control-loop operation.", "cross_family": true } ] }, { "qid": "MUM-2025-09-0472-Q004", "text": "Which attempt?", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-09-0472", "tray": "new", "candidates": [ { "answer_id": "IMO-CODES-P03-002", "score": 0.4799121022224426, "sibling_score": 0.4799121022224426, "answer_score": null, "sibling_qid": "MUM-2026-03-0815-Q003", "sibling_text": "which function", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": false }, { "answer_id": "ANG-ENC-005", "score": 0.43966248631477356, "sibling_score": 0.43966248631477356, "answer_score": null, "sibling_qid": "CHE-2025-08-0514-Q001", "sibling_text": "if one fail what will happen", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Encoder failure: redundancy, offset, backup and emergency starting", "cross_family": true }, { "answer_id": "IGAT-583-004", "score": 0.4350600838661194, "sibling_score": 0.4350600838661194, "answer_score": null, "sibling_qid": "KOC-2021-07-0013-Q006", "sibling_text": "ig fail what action int", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "As Second Engineer, what actions do you take if the inert gas plant of a crude oil tanker is repeatedly tripping on IG high temperature?", "cross_family": true } ] }, { "qid": "MUM-2025-09-0472-Q005", "text": "Which type of ship (lpg)?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-09-0472", "tray": "review", "candidates": [ { "answer_id": "LPG-LNG-009", "score": 0.8016673922538757, "sibling_score": 0.8016673922538757, "answer_score": 0.5051250338554382, "sibling_qid": "CHE-2026-04-0164-Q001", "sibling_text": "type of ship sailed lpg carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Gas-carrier fundamentals and ship-specific traps", "cross_family": false }, { "answer_id": "IGC-GAS-004", "score": 0.7138220071792603, "sibling_score": 0.7138220071792603, "answer_score": null, "sibling_qid": "KOL-2025-08-1014-Q002", "sibling_text": "type of ship sailed lpg classification of gas carriers of as per igc code", "sibling_family": "Cargo Ops - 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What the PSCO checks after coming aboard, and how the inspection is conducted", "cross_family": true } ] }, { "qid": "MUM-2025-09-0979-Q015", "text": "type of pipeline on deck hydraulic system, why square flane ?", "family": "Steering Gear & Hydraulics", "subtopic": "Counter-Balance Valve", "tid": "MUM-2025-09-0979", "tray": "new", "candidates": [ { "answer_id": "RVSG-213-004", "score": 0.5161824226379395, "sibling_score": 0.5161824226379395, "answer_score": null, "sibling_qid": "KOL-2019-07-1469-Q002", "sibling_text": "rotary vane s g what is the redundancy what is 100 redundancy in case of passenger ship how much what will happen to redundancy if the oil pipeline is damaged and leakage", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Redundancy, emergency steering, local operation & bypass", "cross_family": false }, { "answer_id": "FFF-A-003", "score": 0.5141750574111938, "sibling_score": 0.5141750574111938, "answer_score": null, "sibling_qid": "KOC-2025-05-2065-Q005", "sibling_text": "why deck isolation valve fitted", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fire main, hydrants, isolating and deck valves, and fire-line fittings", "cross_family": true }, { "answer_id": "FOAM-P02-001", "score": 0.5073853135108948, "sibling_score": 0.5073853135108948, "answer_score": null, "sibling_qid": "CHE-2025-08-0043-Q004", "sibling_text": "fixed fire fighting system on deck cross ques expansion ratio", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Draw and explain the fixed deck foam firefighting system used on a tanker.", "cross_family": true } ] }, { "qid": "MUM-2025-09-0979-Q019", "text": "safeties on deck hydraulic lines ?", "family": "Steering Gear & Hydraulics", "subtopic": "Counter-Balance Valve", "tid": "MUM-2025-09-0979", "tray": "review", "candidates": [ { "answer_id": "HYD-JACK-006", "score": 0.6671006083488464, "sibling_score": 0.6671006083488464, "answer_score": 0.49449072182178494, "sibling_qid": "KOL-2019-07-3256-Q004", "sibling_text": "hydraulic line safeties", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Safety precautions for hydraulic jack hoses and high-pressure lines", "cross_family": true }, { "answer_id": "SG-055-B-002", "score": 0.610282838344574, "sibling_score": 0.610282838344574, "answer_score": null, "sibling_qid": "KOL-2017-03-1283-Q004", "sibling_text": "what are safeties in hydraulic system of steering gear", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Steering-gear alarms, trips and electrical / hydraulic safeties", "cross_family": false }, { "answer_id": "TNK-SAFE-BF26-003", "score": 0.5976669788360596, "sibling_score": 0.5976669788360596, "answer_score": null, "sibling_qid": "MUM-2024-09-1460-Q007", "sibling_text": "tankers deck safeties", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What safeties, including electrical safeties and Ex ratings, are provided on the deck of a tanker?", "cross_family": true } ] }, { "qid": "MUM-2025-09-0979-Q021", "text": "done with COC:", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-09-0979", "tray": "review", "candidates": [ { "answer_id": "CERT-LIST-P01-001", "score": 0.6687426567077637, "sibling_score": 0.6687426567077637, "answer_score": null, "sibling_qid": "MUM-2026-03-2596-Q007", "sibling_text": "finally coc", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "List the statutory certificates carried onboard a ship.", "cross_family": true }, { "answer_id": "FSE-P03-002", "score": 0.5290116667747498, "sibling_score": 0.5290116667747498, "answer_score": null, "sibling_qid": "KOC-2025-12-0747-Q004", "sibling_text": "what happens to cog", "sibling_family": "", "via": "sibling", "answer_title": "2. 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Give examples, say where it is found, how much time is given to rectify it, and what happens if it is not met in time.", "cross_family": true } ] }, { "qid": "MUM-2025-09-1182-Q002", "text": "Type of ship sailed?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-09-1182", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8459994196891785, "sibling_score": 0.8459994196891785, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8450109362602234, "sibling_score": 0.8450109362602234, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.793106198310852, "sibling_score": 0.793106198310852, "answer_score": null, "sibling_qid": "CHE-2026-03-0253-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "MUM-2025-09-1182-Q003", "text": "Type of main engine,generator,boiler,purifier,compressor?", "family": "Purifier & Centrifuges", "subtopic": "FO/LO/DO Purifier", "tid": "MUM-2025-09-1182", "tray": "review", "candidates": [ { "answer_id": "TC-TROUBLE-338-001", "score": 0.8284733295440674, "sibling_score": 0.8284733295440674, "answer_score": 0.5817817151546478, "sibling_qid": "MUM-2026-06-3637-Q001", "sibling_text": "type of main engine generator boiler purifier compressor", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "1. Turbocharger type — main engine vs generator engine", "cross_family": true }, { "answer_id": "AEME-DIFF-001", "score": 0.7108926177024841, "sibling_score": 0.7108926177024841, "answer_score": null, "sibling_qid": "MUM-2026-07-3784-Q001", "sibling_text": "type of engine boiler aux engine generator", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": true }, { "answer_id": "ENG-NOM-006", "score": 0.6315340399742126, "sibling_score": 0.6315340399742126, "answer_score": null, "sibling_qid": "MUM-2026-04-1320-Q003", "sibling_text": "main engine and generator specifications", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Short-form asks: SMC-C, LMC, and ME vs MC quickly", "cross_family": true } ] }, { "qid": "MUM-2025-09-1182-Q006", "text": "What are reasones boiler is not firing?", "family": "Boilers - Operations & Firing", "subtopic": "Boiler Operations", "tid": "MUM-2025-09-1182", "tray": "review", "candidates": [ { "answer_id": "BFM-330-001", "score": 0.8325161933898926, "sibling_score": 0.8325161933898926, "answer_score": 0.6172772824764251, "sibling_qid": "MUM-2026-05-3208-Q001", "sibling_text": "boiler not firing reason", "sibling_family": "Boilers - 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Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "MUM-2025-09-1184-Q005", "text": "gusset stay how they are connected and purpose", "family": "Boilers - Construction & Components", "subtopic": "Baffle Plate", "tid": "MUM-2025-09-1184", "tray": "new", "candidates": [ { "answer_id": "OGEE-RING-001", "score": 0.5445505380630493, "sibling_score": 0.5445505380630493, "answer_score": null, "sibling_qid": "KOC-2022-07-0972-Q003", "sibling_text": "ogee ring and gusset stay explain with figures", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "The ogee ring: what it is, where it sits, its purpose, and how it's formed and connected", "cross_family": false }, { "answer_id": "FWFB-P02-001", "score": 0.5237009525299072, "sibling_score": 0.5237009525299072, "answer_score": 0.42449992150068283, "sibling_qid": "MUM-2022-10-0061-Q005", "sibling_text": "gusset plate where used", "sibling_family": "", "via": "sibling", "answer_title": "Brackets, knees and gusset plates", "cross_family": false }, { "answer_id": "HATCH-COAM-005", "score": 0.40958505868911743, "sibling_score": 0.40958505868911743, "answer_score": 0.3343549013137817, "sibling_qid": "KOC-2026-03-0863-Q005", "sibling_text": "hatch coaming strengthening member with plan view to show support", "sibling_family": "", "via": "sibling", "answer_title": "What supports, stays or strengthening members are provided for hatch coamings and large hatch openings?", "cross_family": false } ] }, { "qid": "MUM-2025-09-1184-Q011", "text": "one unit showing jacket water temp high …all possible checks and troubleshooting.", "family": "2-Stroke - Operations & Casualty", "subtopic": "Jacket Water High Temp", "tid": "MUM-2025-09-1184", "tray": "review", "candidates": [ { "answer_id": "EXH-T-HI-002", "score": 0.6813713908195496, "sibling_score": 0.6813713908195496, "answer_score": null, "sibling_qid": "KOC-2026-02-0807-Q012", "sibling_text": "one unit exhaust temp increase ur actions exh valve open early how to find out", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "One unit exhaust temperature high — causes, checks and actions", "cross_family": false }, { "answer_id": "JCW-SYS-003", "score": 0.6746855974197388, "sibling_score": 0.6746855974197388, "answer_score": 0.6407445192337036, "sibling_qid": "MUM-2025-12-1222-Q007", "sibling_text": "jacket water temp rising from 70 to 75 actions", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "ME jacket-water temperature is rising on all units and will not hold setpoint - reasons, your actions as 2/E, and telling which side of the cooler is leaking", "cross_family": true }, { "answer_id": "SCAV-323-P02-001", "score": 0.6619555354118347, "sibling_score": 0.6619555354118347, "answer_score": null, "sibling_qid": "KOL-2018-07-3163-Q005", "sibling_text": "one unit temp high scavenging probs hw ll you confirm", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Scavenging and its operational significance", "cross_family": true } ] }, { "qid": "MUM-2025-09-1185-Q003", "text": "Semi balanced rudder", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "MUM-2025-09-1185", "tray": "new", "candidates": [ { "answer_id": "SPR-STERN-004", "score": 0.6270583868026733, "sibling_score": 0.6270583868026733, "answer_score": null, "sibling_qid": "MUM-2026-04-0894-Q003", "sibling_text": "what type of rudder i said semi balanced double plated rudder angle of attack stall angle", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Propeller rake & skew", "cross_family": true }, { "answer_id": "TRS-001", "score": 0.5979386568069458, "sibling_score": 0.5979386568069458, "answer_score": null, "sibling_qid": "KOL-2019-05-3236-Q005", "sibling_text": "rudder stock twisted how will you balance it how to find changed mishsip position", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "The rudder stock is twisted — how do you proceed, recover the true midship datum, and what regulations let you proceed to the next port?", "cross_family": false }, { "answer_id": "STEER-055-A-004", "score": 0.5968759655952454, "sibling_score": 0.5968759655952454, "answer_score": null, "sibling_qid": "KOL-2019-02-3212-Q005", "sibling_text": "rudder is taking more to come from one side to the other reasons and maintenance", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Hydraulic faults — air, sluggish response, locking, leakage", "cross_family": false } ] }, { "qid": "MUM-2025-09-1186-Q001", "text": "1 Pakrashi sir Type of engine type of boiler.", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2025-09-1186", "tray": "review", "candidates": [ { "answer_id": "AEME-DIFF-001", "score": 0.7430265545845032, "sibling_score": 0.7430265545845032, "answer_score": null, "sibling_qid": "MUM-2026-05-3082-Q001", "sibling_text": "type of engine boiler aux engine generator", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-001", "score": 0.7010824084281921, "sibling_score": 0.7010824084281921, "answer_score": null, "sibling_qid": "MUM-2026-06-3637-Q001", "sibling_text": "type of main engine generator boiler purifier compressor", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "1. 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bush clearance at each pintle top bottom f a and p s on long feeler gauges or pintle od vs bush id by caliper top mid bottom the maximum is the clearance renew the bush at the maker class limit carrier bearing wear down the rudder drop poker trammel gauge hull datum to stock mark against the recorded newbuilding reading", "sibling_family": "", "via": "answer_title", "answer_title": "Rudder clearances: which, where and how taken", "cross_family": false }, { "answer_id": "DUS-P5-05", "score": 0.35823228806257246, "sibling_score": null, "answer_score": 0.35823228806257246, "sibling_qid": "", "sibling_text": "rudder checks and rudder blade tightness leak test in drydock visual checks coating condition cavitation erosion on the blade leading edge propeller side face sacrificial anodes against the approved cathodic protection plan grounding continuity against the approved acceptance criterion plate and weld cracks pintle clearance measured with feeler the numerical acceptance limit is class 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"answer_title": "MC-C (\"Compact\") engine — design and the main constructional differences from MC", "cross_family": false } ] }, { "qid": "MUM-2025-09-1195-Q002", "text": "Difference in Fuel pump of ME & AE seeing from outside", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE vs ME Differences", "tid": "MUM-2025-09-1195", "tray": "review", "candidates": [ { "answer_id": "AEFP-471-006", "score": 0.7732309103012085, "sibling_score": 0.7732309103012085, "answer_score": 0.4412360221147537, "sibling_qid": "MUM-2026-04-2986-Q002", "sibling_text": "difference in fuel pump of me and ae from outside", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "What is the difference between main-engine and auxiliary-engine fuel pumps?", "cross_family": true }, { "answer_id": "FP-OVHL-001", "score": 0.698773980140686, "sibling_score": 0.698773980140686, "answer_score": 0.4548644214868545, "sibling_qid": "MUM-2026-09-3897-Q002", "sibling_text": "main engine and aux engine fuel pump difference when looking from outside", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Aux-engine / Bosch jerk fuel pump — overhaul, checks, boxing up", "cross_family": true }, { "answer_id": "FIS-221-004", "score": 0.6108338832855225, "sibling_score": 0.6108338832855225, "answer_score": null, "sibling_qid": "MUM-2025-05-0273-Q008", "sibling_text": "difference between conventional fuel pump and me engine fuel pump", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Conventional versus ME / electronically controlled injection", "cross_family": true } ] }, { "qid": "MUM-2025-09-1196-Q002", "text": "Type of engine sailed -MEGI", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2025-09-1196", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.6961504817008972, "sibling_score": 0.6961504817008972, "answer_score": null, "sibling_qid": "MUM-2026-04-1007-Q002", "sibling_text": "type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "MCC-MEB-P01-001", "score": 0.6324522495269775, "sibling_score": 0.6324522495269775, "answer_score": null, "sibling_qid": "MUM-2026-09-3997-Q002", "sibling_text": "type of engine worked me mcc me b and rta", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "MC-C (\"Compact\") engine — design and the main constructional differences from MC", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.6297988891601562, "sibling_score": 0.6297988891601562, "answer_score": null, "sibling_qid": "MUM-2026-09-3915-Q001", "sibling_text": "type of engine me and ae", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false } ] }, { "qid": "MUM-2025-09-1196-Q003", "text": "Engine nomenclature", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2025-09-1196", "tray": "review", "candidates": [ { "answer_id": "ENG-NOM-005", "score": 0.8080931901931763, "sibling_score": 0.8080931901931763, "answer_score": 0.5278221786022186, "sibling_qid": "MUM-2026-05-3153-Q007", "sibling_text": "engines nomenclature", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false }, { "answer_id": "ETP-344-P03-003", "score": 0.5835463404655457, "sibling_score": null, "answer_score": 0.5835463404655457, "sibling_qid": "", "sibling_text": "engine nomenclature layout mark number and engine constant designation order man b w cylinders stroke bore letter k l s g bore in cm m programme concept e electronic c camshaft design c compact b camshaft controlled exhaust hybrid mark number gi if gas injection tier rating stroke bore letters k short l long s super long g ultra long green the ratios are approximate design values not exact", "sibling_family": "", "via": "answer_title", "answer_title": "Engine nomenclature, layout, mark number and engine constant", "cross_family": false }, { "answer_id": "ENG-NOM-001", "score": 0.566735029220581, "sibling_score": null, "answer_score": 0.566735029220581, "sibling_qid": "", "sibling_text": "nomenclature of me and ae asked together main engine and auxiliary engine are decoded on different rules don t run one set of letters across both main engine man b w two stroke cylinders stroke letter bore in cm programme letter control letter then compact version", "sibling_family": "", "via": "answer_title", "answer_title": "Nomenclature of ME and AE (asked together)", "cross_family": false } ] }, { "qid": "MUM-2025-09-1196-Q009", "text": "What is the difference between between automatic thermostatic vale and manual thermal valve didn’t understand", "family": "Steering Gear & Hydraulics", "subtopic": "Counter-Balance Valve", "tid": "MUM-2025-09-1196", "tray": "new", "candidates": [ { "answer_id": "TEV-TXV-002", "score": 0.6324207186698914, "sibling_score": 0.6324207186698914, "answer_score": null, "sibling_qid": "MUM-2022-12-1037-Q007", "sibling_text": "explain thermostatic valve", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "TEV / TXV — purpose, construction, location and working", "cross_family": true }, { "answer_id": "HYD-VLV-002", "score": 0.6189277768135071, "sibling_score": 0.6189277768135071, "answer_score": null, "sibling_qid": "KOL-2018-04-1858-Q006", "sibling_text": "5 s g all about valves in the system what and function of auto n manual bypass valves", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Steering-Gear Valves: Relief, Bypass, Bidirectional and Isolation — and Isolating a Leak", "cross_family": false }, { "answer_id": "AUC-SEN-06", "score": 0.6100021600723267, "sibling_score": 0.6100021600723267, "answer_score": 0.5215813934803009, "sibling_qid": "MUM-2026-01-1904-Q006", "sibling_text": "thermostat wax principle and pressure switch difference", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Thermistor versus thermostat — bimetallic and wax-element principles", "cross_family": true } ] }, { "qid": "MUM-2025-09-1196-Q012", "text": "If 2 cargo pumps not functional how will u discharge the cargo", "family": "Cargo Ops - Bulk Carriers", "subtopic": "IMSBC / Grain / BLU Code", "tid": "MUM-2025-09-1196", "tray": "review", "candidates": [ { "answer_id": "AII-DISCH-003", "score": 0.6712253093719482, "sibling_score": 0.6712253093719482, "answer_score": 0.5314109086990356, "sibling_qid": "KOL-2025-12-1138-Q003", "sibling_text": "how to discharge cargo residues to sea if pump not taking suction", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Preparation and procedure before discharging residues, including when the pump will not take suction", "cross_family": true }, { "answer_id": "CPFE-583-015", "score": 0.6641268134117126, "sibling_score": 0.6641268134117126, "answer_score": 0.5781676530838012, "sibling_qid": "KOC-2024-04-1838-Q002", "sibling_text": "cargo discharge pump damaged what action will u take", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Emergency cargo pumping when a pump fails or is damaged", "cross_family": true }, { "answer_id": "CHEM-PA-005", "score": 0.6393300890922546, "sibling_score": 0.6393300890922546, "answer_score": null, "sibling_qid": "KOL-2022-07-0661-Q002", "sibling_text": "2 discharge regultion for pumping for various type of cargoes", "sibling_family": "MARPOL - Annex II (NLS)", "via": "sibling", "answer_title": "Discharge criteria for NLS cargo residues, by category", "cross_family": true } ] }, { "qid": "MUM-2025-09-1196-Q013", "text": "How the tank pressure inside the LNG maintained", "family": "Cargo Ops - Gas Carriers", "subtopic": "Reliquefaction Plant", "tid": "MUM-2025-09-1196", "tray": "review", "candidates": [ { "answer_id": "BLEVE-BOG-004", "score": 0.7270407676696777, "sibling_score": 0.7270407676696777, "answer_score": 0.49938800036907194, "sibling_qid": "KOL-2026-09-4311-Q002", "sibling_text": "you are on lng you know what is bog how we control bog vapour header pressure control ways i was saying what is pressure generated in tanks where you use on ship mostly", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "How are LNG boil-off, tank pressure and cargo temperature controlled?", "cross_family": false }, { "answer_id": "LPG-LNG-004", "score": 0.6746541261672974, "sibling_score": 0.6746541261672974, "answer_score": null, "sibling_qid": "KOC-2022-12-0116-Q001", "sibling_text": "lpg cargo tank pressure", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Loading / discharging, tank pressure, pump and disconnection", "cross_family": false }, { "answer_id": "GC-TANK-001", "score": 0.6338201761245728, "sibling_score": 0.6338201761245728, "answer_score": 0.49364990293979644, "sibling_qid": "MUM-2025-09-1196-Q014", "sibling_text": "type of tanks for lng", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Main cargo containment and independent tank types on LPG and LNG carriers", "cross_family": false } ] }, { "qid": "MUM-2025-09-1196-Q015", "text": "If secondary barrier leaks and gas leak how u will come to knw", "family": "Cargo Ops - Gas Carriers", "subtopic": "Gas Detection / Leak", "tid": "MUM-2025-09-1196", "tray": "new", "candidates": [ { "answer_id": "IGC-GAS-016", "score": 0.6055678725242615, "sibling_score": 0.6055678725242615, "answer_score": 0.4529672086238861, "sibling_qid": "KOL-2026-09-4311-Q001", "sibling_text": "which type of ship lng okay semi ref or fully fully if secondary barrier leaks as 2e what things u would do how to check trueness of alarms what all u will check what u will do first and all things i cud nt answer fully", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Emergency action — primary and secondary barrier breach", "cross_family": false }, { "answer_id": "GAS-DET-001", "score": 0.5870814323425293, "sibling_score": 0.5870814323425293, "answer_score": null, "sibling_qid": "MUM-2024-07-2767-Q021", "sibling_text": "how is gas leak got to know in the ship", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Fixed gas detection system on a gas carrier (cargo area / \"pump room\")", "cross_family": false }, { "answer_id": "GAS-DET-002", "score": 0.5612295269966125, "sibling_score": 0.5612295269966125, "answer_score": 0.4869792342185974, "sibling_qid": "MUM-2023-06-0104-Q014", "sibling_text": "system for removing gas if leaks", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Detecting a leak: inter-barrier / secondary-barrier spaces and shipboard safeties", "cross_family": false } ] }, { "qid": "MUM-2025-09-1196-Q016", "text": "If the secondary barrier water leaks how will u come to knw", "family": "Cargo Ops - Gas Carriers", "subtopic": "Gas Detection / Leak", "tid": "MUM-2025-09-1196", "tray": "new", "candidates": [ { "answer_id": "PIPEFAB-009", "score": 0.5308880805969238, "sibling_score": 0.5308880805969238, "answer_score": null, "sibling_qid": "MUM-2026-03-2600-Q003", "sibling_text": "running generator water leaking how will know", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "A seawater or fire line is leaking / thinned down — action as 2/E, valve not holding, no hot work possible", "cross_family": true }, { "answer_id": "CAS-ESTOP-001", "score": 0.5246593356132507, "sibling_score": 0.5246593356132507, "answer_score": null, "sibling_qid": "KOL-2025-07-3823-Q005", "sibling_text": "how will you know water ingress in er", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Engine-room flooding / rapidly rising bilges — immediate action as 2/E", "cross_family": true }, { "answer_id": "IGC-GAS-016", "score": 0.5235782861709595, "sibling_score": 0.5235782861709595, "answer_score": null, "sibling_qid": "KOL-2026-09-4311-Q001", "sibling_text": "which type of ship lng okay semi ref or fully fully if secondary barrier leaks as 2e what things u would do how to check trueness of alarms what all u will check what u will do first and all things i cud nt answer fully", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Emergency action — primary and secondary barrier breach", "cross_family": false } ] }, { "qid": "MUM-2025-09-1633-Q001", "text": "Oral written status", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-09-1633", "tray": "review", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.7977424263954163, "sibling_score": 0.7977424263954163, "answer_score": null, "sibling_qid": "MUM-2026-05-3187-Q001", "sibling_text": "status of other orals and written", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.5965845584869385, "sibling_score": 0.5965845584869385, "answer_score": null, "sibling_qid": "KOC-2026-08-2106-Q001", "sibling_text": "status of written oral company type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": true }, { "answer_id": "AE-CRP-005", "score": 0.4670228958129883, "sibling_score": 0.4670228958129883, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q001", "sibling_text": "type of vessel engine make written and oral status", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": true } ] }, { "qid": "MUM-2025-09-1633-Q002", "text": "Room check", "family": "", "subtopic": "", "tid": "MUM-2025-09-1633", "tray": "new", "candidates": [ { "answer_id": "EDG-P01-002", "score": 0.5845034122467041, "sibling_score": 0.5845034122467041, "answer_score": null, "sibling_qid": "CHE-2025-08-0292-Q003", "sibling_text": "wt u check in emcy gen room", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Emergency generator room — location and rounds", "cross_family": false }, { "answer_id": "CO2-SYS-002", "score": 0.5623107552528381, "sibling_score": 0.5623107552528381, "answer_score": null, "sibling_qid": "KOC-2024-03-0317-Q003", "sibling_text": "co2 room checks as 2 e", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 maintenance, inspection, testing and survey routines", "cross_family": false }, { "answer_id": "REEF-SAFE-001", "score": 0.5572267770767212, "sibling_score": 0.5572267770767212, "answer_score": null, "sibling_qid": "KOL-2019-11-1494-Q005", "sibling_text": "refer room safety", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Refrigeration plant and reefer-room safeties — what protects the machinery, and what protects the man?", "cross_family": false } ] }, { "qid": "MUM-2025-09-1634-Q004", "text": "Gmdss equipment", "family": "SOLAS - LSA & Lifeboats", "subtopic": "EPIRB / SART", "tid": "MUM-2025-09-1634", "tray": "review", "candidates": [ { "answer_id": "bdc-p05-03", "score": 0.7553536891937256, "sibling_score": 0.7553536891937256, "answer_score": 0.4892378330230713, "sibling_qid": "KOC-2026-02-1695-Q006", "sibling_text": "gmdss equipments", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "CQ-BDC-025 GMDSS reserve battery — requirement, supply, voltage and equipment Medium", "cross_family": true }, { "answer_id": "UNL-330-001", "score": 0.7271563410758972, "sibling_score": 0.7271563410758972, "answer_score": null, "sibling_qid": "MUM-2026-05-3294-Q006", "sibling_text": "gmdss and gmdss equipment", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "What is the function of the main air compressor unloader?", "cross_family": true }, { "answer_id": "bdc-p05-04", "score": 0.6714186668395996, "sibling_score": 0.6714186668395996, "answer_score": null, "sibling_qid": "MUM-2026-06-3591-Q004", "sibling_text": "gmdss and emergency battery", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "CQ-BDC-027 GMDSS, emergency and engine-starting batteries — three systems, three rules Medium", "cross_family": true } ] }, { "qid": "MUM-2025-09-1637-Q004", "text": "Thermistor, thermostat difference ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Thermistor", "tid": "MUM-2025-09-1637", "tray": "review", "candidates": [ { "answer_id": "AUC-SEN-06", "score": 0.788311779499054, "sibling_score": 0.788311779499054, "answer_score": 0.6140857577323914, "sibling_qid": "KOL-2024-04-2706-Q003", "sibling_text": "difference between thermistor thermostat", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Thermistor versus thermostat — bimetallic and wax-element principles", "cross_family": true }, { "answer_id": "SCR-306-B-001", "score": 0.7408656477928162, "sibling_score": 0.7408656477928162, "answer_score": null, "sibling_qid": "MUM-2024-02-1426-Q003", "sibling_text": "difference between a thermistor and thyristor", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Thyristor / SCR vs other semiconductor devices", "cross_family": false }, { "answer_id": "AUC-SEN-07", "score": 0.6998412609100342, "sibling_score": 0.6998412609100342, "answer_score": 0.555199658870697, "sibling_qid": "KOC-2025-04-1524-Q001", "sibling_text": "difference between thermistor and thermo couple", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Thermistor versus thermocouple — physics, signal and where each goes onboard", "cross_family": true } ] }, { "qid": "MUM-2025-09-1639-Q007", "text": "What type of alternator did you have on your last vessel? Explain", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator / Generator", "tid": "MUM-2025-09-1639", "tray": "review", "candidates": [ { "answer_id": "ALT-GEN-P02-001", "score": 0.7413755655288696, "sibling_score": 0.7413755655288696, "answer_score": 0.4852606117725372, "sibling_qid": "KOC-2026-05-2134-Q001", "sibling_text": "alternator specifications on last vessel", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Alternator/generator specifications, ratings and ship electrical supply details", "cross_family": false }, { "answer_id": "ALT-GEN-P01-002", "score": 0.7078829407691956, "sibling_score": 0.7078829407691956, "answer_score": 0.5300732791423798, "sibling_qid": "KOL-2022-05-2570-Q002", "sibling_text": "what type of alternator you had on your last ship", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "2. Types of generator/alternator carried onboard", "cross_family": false }, { "answer_id": "BL-ALT-C-001", "score": 0.6354362368583679, "sibling_score": 0.6354362368583679, "answer_score": null, "sibling_qid": "KOL-2018-04-2189-Q001", "sibling_text": "what was d company of the alternator on your ship type what is advantage of brushless over others draw diagram of voltage dip", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Electrical advantages of brushless excitation over brushed / static", "cross_family": false } ] }, { "qid": "MUM-2025-09-1640-Q003", "text": "shore supply already given but suddenly black out", "family": "Electrical - Generator & Alternator", "subtopic": "Black Out Test / Recovery", "tid": "MUM-2025-09-1640", "tray": "new", "candidates": [ { "answer_id": "SHORE-CONN-P03-001", "score": 0.6393561363220215, "sibling_score": 0.6393561363220215, "answer_score": null, "sibling_qid": "KOL-2022-07-2575-Q004", "sibling_text": "shore supply full", "sibling_family": "", "via": "sibling", "answer_title": "Taking electrical shore power in dry dock — preparation, checks and procedure", "cross_family": false }, { "answer_id": "EMCY-DG-P03-004", "score": 0.6374173760414124, "sibling_score": 0.6374173760414124, "answer_score": null, "sibling_qid": "KOC-2025-12-1673-Q007", "sibling_text": "blackout happened how emergency generator will get started", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Blackout sequence — starting the set and taking load back", "cross_family": false }, { "answer_id": "SHORE-CONN-P04-001", "score": 0.6273178458213806, "sibling_score": 0.6273178458213806, "answer_score": null, "sibling_qid": "MUM-2026-03-2034-Q009", "sibling_text": "would you take shore supply if frequency is les", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Accepting shore supply at a different frequency or voltage (incl. dry dock)", "cross_family": false } ] }, { "qid": "MUM-2025-09-1640-Q005", "text": "clamp meter", "family": "Gauges & Tools", "subtopic": "Clamp Meter", "tid": "MUM-2025-09-1640", "tray": "new", "candidates": [ { "answer_id": "GMCM-583-A-009", "score": 0.6061667203903198, "sibling_score": 0.6061667203903198, "answer_score": 0.3829628050327301, "sibling_qid": "KOC-2026-10-2217-Q007", "sibling_text": "clamp meter working", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "09. The clamp (tong) meter — working principle, types, and why only a single conductor is clamped", "cross_family": true }, { "answer_id": "GMCM-583-A-011", "score": 0.5422242879867554, "sibling_score": 0.5422242879867554, "answer_score": 0.375368532538414, "sibling_qid": "KOC-2026-05-0028-Q009", "sibling_text": "how to use clamp meters", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "11. Using a clamp meter in service — what it can measure, and where to check on a running motor", "cross_family": true }, { "answer_id": "GMCM-583-A-010", "score": 0.5117499828338623, "sibling_score": 0.5117499828338623, "answer_score": 0.3951220765709877, "sibling_qid": "MUM-2026-05-3004-Q004", "sibling_text": "what is clampmeter if the current the phase is 100 a what will be the reading", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "10. The clamp meter on a three-phase supply — what you read clamping one, two or all three conductors of a 100 A system", "cross_family": true } ] }, { "qid": "MUM-2025-09-1640-Q006", "text": "open ckt characteristic", "family": "", "subtopic": "Insulation / Open-Circuit Test", "tid": "MUM-2025-09-1640", "tray": "new", "candidates": [ { "answer_id": "PID-CTRL-005", "score": 0.500645637512207, "sibling_score": 0.500645637512207, "answer_score": null, "sibling_qid": "CHE-2026-05-0603-Q008", "sibling_text": "open loop electrical", "sibling_family": "Instrumentation & Controls", "via": "sibling", "answer_title": "Open-loop, closed-loop, cascade and other control types onboard", "cross_family": false }, { "answer_id": "GMC-583-B-005", "score": 0.4986056089401245, "sibling_score": 0.4986056089401245, "answer_score": null, "sibling_qid": "MUM-2022-11-2715-Q031", "sibling_text": "open circuit how will we find out", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Proving a meter faulty, and getting the reading another way", "cross_family": false }, { "answer_id": "XFMR-THY-D-001", "score": 0.4857017397880554, "sibling_score": 0.4857017397880554, "answer_score": null, "sibling_qid": "MUM-2023-11-1411-Q001", "sibling_text": "open circuit test", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Transformer — principle and working", "cross_family": false } ] }, { "qid": "MUM-2025-09-1642-Q003", "text": "Generator started but voltage not developing and action to be taken", "family": "Electrical - Generator & Alternator", "subtopic": "Voltage Not Coming", "tid": "MUM-2025-09-1642", "tray": "review", "candidates": [ { "answer_id": "NO-VOLT-001", "score": 0.8582088947296143, "sibling_score": 0.8582088947296143, "answer_score": 0.5862470835447311, "sibling_qid": "MUM-2026-06-3485-Q003", "sibling_text": "generator started but voltage not developing and action to be taken", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "The 3/E reports the generator has started but no voltage is showing — reasons, and your actions as 2/E", "cross_family": false }, { "answer_id": "RES-MAG-002", "score": 0.7793582081794739, "sibling_score": 0.7793582081794739, "answer_score": 0.6434925317764282, "sibling_qid": "KOL-2021-07-2455-Q005", "sibling_text": "generator started after many days and voltage not developing reasons", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Generator started but no voltage developing — reasons, and your action as Second Engineer", "cross_family": false }, { "answer_id": "NO-VOLT-003", "score": 0.5553992241621017, "sibling_score": null, "answer_score": 0.5553992241621017, "sibling_qid": "", "sibling_text": "started after a long standby or in drydock and no voltage develops causes and how do you restore it two independent families insulation gone down while idle and excitation that has decayed or been disturbed test both finding one does not clear the other inspect and clean before you test debris salt hygroscopic dust and moisture on the winding outhang are what pull the reading down", "sibling_family": "", "via": "answer_title", "answer_title": "Started after a long standby or in drydock and no voltage develops — causes, and how do you restore it?", "cross_family": false } ] }, { "qid": "MUM-2025-09-1643-Q003", "text": "Thermistor. explain", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Thermistor", "tid": "MUM-2025-09-1643", "tray": "review", "candidates": [ { "answer_id": "AUC-SEN-05", "score": 0.7519014477729797, "sibling_score": 0.7519014477729797, "answer_score": 0.5996912181377411, "sibling_qid": "KOC-2025-10-1602-Q008", "sibling_text": "thermistor explain where used", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Thermistor — principle, NTC and PTC behaviour, and shipboard applications", "cross_family": true }, { "answer_id": "SCR-306-B-001", "score": 0.7018744349479675, "sibling_score": 0.7018744349479675, "answer_score": null, "sibling_qid": "KOC-2022-03-1177-Q005", "sibling_text": "thermistor thermocouple thyristor", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Thyristor / SCR vs other semiconductor devices", "cross_family": false }, { "answer_id": "SPHS-B-015", "score": 0.5864052057266235, "sibling_score": null, "answer_score": 0.5864052057266235, "sibling_qid": "", "sibling_text": "thermistors how do they avoid single phasing and what is the working principle answer the premise first thermistors do not avoid or detect single phasing they detect temperature whatever caused it ptc thermistor semiconductor typically doped barium titanate resistance low and flat then rising very steeply above the rated switching temperature", "sibling_family": "", "via": "answer_title", "answer_title": "Thermistors — how do they avoid single phasing, and what is the working principle?", "cross_family": false } ] }, { "qid": "MUM-2025-09-1644-Q006", "text": "■type of cable used for supply to steering gear", "family": "Steering Gear & Hydraulics", "subtopic": "Counter-Balance Valve", "tid": "MUM-2025-09-1644", "tray": "review", "candidates": [ { "answer_id": "SGM-ELEC-002", "score": 0.7867186069488525, "sibling_score": 0.7867186069488525, "answer_score": 0.42817348837852476, "sibling_qid": "MUM-2026-06-3456-Q020", "sibling_text": "type of cable used for steering gear motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What type of motor is the steering gear motor, how does it differ from other engine-room motors, and how do you order one?", "cross_family": true }, { "answer_id": "CABLE-INS-E-003", "score": 0.6792005300521851, "sibling_score": 0.6792005300521851, "answer_score": null, "sibling_qid": "MUM-2026-05-3293-Q001", "sibling_text": "type of cable from alternator to bus bar bus bar to steering gear", "sibling_family": "Electrical - Cables & Insulation", "via": "sibling", "answer_title": "Cable / conductor arrangement: alternator to MSB", "cross_family": true }, { "answer_id": "STEER-055-A-002", "score": 0.6363047361373901, "sibling_score": 0.6363047361373901, "answer_score": null, "sibling_qid": "MUM-2026-03-2058-Q008", "sibling_text": "type of steering gear motor", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Steering gear motor and power unit", "cross_family": false } ] }, { "qid": "MUM-2025-09-1645-Q002", "text": "Curve for star delta starter and soft starter", "family": "Electrical - Motors & Starters", "subtopic": "Star-Delta Starter", "tid": "MUM-2025-09-1645", "tray": "review", "candidates": [ { "answer_id": "SOFTSTART-P03-001", "score": 0.7538546919822693, "sibling_score": 0.7538546919822693, "answer_score": 0.5165772140026093, "sibling_qid": "MUM-2026-06-3568-Q001", "sibling_text": "star delta v s soft starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Star-delta starter versus soft starter", "cross_family": false }, { "answer_id": "SDST-A-001", "score": 0.7042816281318665, "sibling_score": 0.7042816281318665, "answer_score": null, "sibling_qid": "MUM-2023-07-1394-Q003", "sibling_text": "star delta starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false }, { "answer_id": "SOFTSTART-P02-003", "score": 0.4975753456354141, "sibling_score": null, "answer_score": 0.4975753456354141, "sibling_qid": "", "sibling_text": "types of starter and types of soft starter starter families dol full voltage star delta autotransformer korndorfer primary resistance reactor rotor resistance slip ring wound rotor motors only electronic soft starter vfd is a separate class running speed control not merely a softer start", "sibling_family": "", "via": "answer_title", "answer_title": "Types of starter, and types of soft starter", "cross_family": false } ] }, { "qid": "MUM-2025-09-1645-Q007", "text": "Checks in Induction motor after overhaul", "family": "Electrical - Motors & Starters", "subtopic": "Motor Not Starting", "tid": "MUM-2025-09-1645", "tray": "review", "candidates": [ { "answer_id": "IR-TEST-B-016", "score": 0.7814964652061462, "sibling_score": 0.7814964652061462, "answer_score": 0.655013969540596, "sibling_qid": "MUM-2025-05-1517-Q002", "sibling_text": "motor checks after receiving from overhaul", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Post-overhaul motor testing — proving it good without coupling to load", "cross_family": false }, { "answer_id": "IND-MOT-A-001", "score": 0.766833484172821, "sibling_score": 0.766833484172821, "answer_score": null, "sibling_qid": "CHE-2026-04-0386-Q006", "sibling_text": "what are checks you will do in 3 phase induction motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "1. Working principle of a three-phase induction motor", "cross_family": false }, { "answer_id": "IRT-C-013", "score": 0.7626163959503174, "sibling_score": 0.7626163959503174, "answer_score": null, "sibling_qid": "MUM-2026-05-3194-Q013", "sibling_text": "you sent a 3 phase induction motor for rewinding what checks will you carry out before putting it into service", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Motor back from shore / rewind — checks before commissioning", "cross_family": false } ] }, { "qid": "MUM-2025-09-1646-Q004", "text": "■iccp working in detail", "family": "Electrical - ICCP & Cathodic Protection", "subtopic": "ICCP", "tid": "MUM-2025-09-1646", "tray": "review", "candidates": [ { "answer_id": "ICCP-119-P01-001", "score": 0.6888335347175598, "sibling_score": 0.6888335347175598, "answer_score": 0.42416199296712875, "sibling_qid": "MUM-2026-01-1913-Q007", "sibling_text": "iccp working in detail", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP — purpose, principle and basic working", "cross_family": false }, { "answer_id": "ICCP-119-P01-002", "score": 0.6287195682525635, "sibling_score": 0.6287195682525635, "answer_score": 0.38080274760723115, "sibling_qid": "MUM-2026-06-3487-Q011", "sibling_text": "iccp in detail", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP circuit / control arrangement, construction and main components", "cross_family": false }, { "answer_id": "ICCP-119-P01-003", "score": 0.32262558937072755, "sibling_score": null, "answer_score": 0.32262558937072755, "sibling_qid": "", "sibling_text": "iccp values impressed current meaning anode cathode roles and materials", "sibling_family": "", "via": "answer_title", "answer_title": "ICCP values, impressed-current meaning, anode/cathode roles and materials", "cross_family": false } ] }, { "qid": "MUM-2025-09-1652-Q001", "text": "Why appearing for only fn 5", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-09-1652", "tray": "new", "candidates": [ { "answer_id": "CTRL-001", "score": 0.4991373121738434, "sibling_score": 0.4991373121738434, "answer_score": null, "sibling_qid": "KOL-2021-12-2522-Q005", "sibling_text": "cascade control system full got fn 5", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Cascade control — how it works", "cross_family": true }, { "answer_id": "NER-HV-P04-001", "score": 0.47170042991638184, "sibling_score": 0.47170042991638184, "answer_score": null, "sibling_qid": "KOL-2018-05-1376-Q009", "sibling_text": "ner use in high voltage got function 5", "sibling_family": "", "via": "sibling", "answer_title": "What an NER is, where it is used, and why it is fitted in HV systems", "cross_family": false }, { "answer_id": "GZKN-P02-001", "score": 0.4627121090888977, "sibling_score": 0.4627121090888977, "answer_score": null, "sibling_qid": "KOL-2019-01-0254-Q003", "sibling_text": "kn curve 5", "sibling_family": "", "via": "sibling", "answer_title": "Cross curves of stability (KN curves) — draw, explain, and use to build the GZ curve", "cross_family": false } ] }, { "qid": "MUM-2025-09-1652-Q002", "text": "What about other functions", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-09-1652", "tray": "review", "candidates": [ { "answer_id": "IMO-CODES-P03-002", "score": 0.6555448174476624, "sibling_score": 0.6555448174476624, "answer_score": null, "sibling_qid": "MUM-2026-03-0815-Q003", "sibling_text": "which function", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": false }, { "answer_id": "LRHR-B-010", "score": 0.534261167049408, "sibling_score": 0.534261167049408, "answer_score": null, "sibling_qid": "KOL-2018-09-0221-Q005", "sibling_text": "hru function n everything", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Explain the HRU's operating principle and full operation. Draw it.", "cross_family": true }, { "answer_id": "CHK-RM-001", "score": 0.5271273851394653, "sibling_score": 0.5271273851394653, "answer_score": null, "sibling_qid": "KOL-2022-04-1918-Q004", "sibling_text": "chocks function types", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What are chocks? Function, types, where fitted and how placed — which have the biggest area, and how does the bedplate connect to the hull?", "cross_family": true } ] }, { "qid": "MUM-2025-09-1652-Q010", "text": "How are the lower current and lower voltage is achieved", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "MUM-2025-09-1652", "tray": "new", "candidates": [ { "answer_id": "XFMR-THY-G-007", "score": 0.4765016436576843, "sibling_score": 0.4765016436576843, "answer_score": null, "sibling_qid": "CHE-2025-12-0323-Q005", "sibling_text": "why you need to step down the voltage", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "7. Step-up / step-down: the real purpose onboard", "cross_family": false }, { "answer_id": "SHORE-CONN-P04-001", "score": 0.4727855622768402, "sibling_score": 0.4727855622768402, "answer_score": null, "sibling_qid": "KOL-2023-04-2651-Q005", "sibling_text": "if shore supply frequency is less than that of ship how can we take it ans current is directly proportional to voltage frequency so if frequency is reduced we need to ask the shore to reduce voltage to keep the current constant and prevent motors from overheating", "sibling_family": "", "via": "sibling", "answer_title": "Accepting shore supply at a different frequency or voltage (incl. dry dock)", "cross_family": false }, { "answer_id": "HV-SYS-P02-001", "score": 0.4722331464290619, "sibling_score": 0.4722331464290619, "answer_score": null, "sibling_qid": "CHE-2026-03-0342-Q005", "sibling_text": "prove me when voltage increases how current reduce", "sibling_family": "", "via": "sibling", "answer_title": "Why high voltage is used onboard ships", "cross_family": false } ] }, { "qid": "MUM-2025-09-1662-Q002", "text": "How will you flash the alternator?", "family": "Electrical - Generator & Alternator", "subtopic": "Residual Magnetism / Flashing", "tid": "MUM-2025-09-1662", "tray": "new", "candidates": [ { "answer_id": "RES-MAG-002", "score": 0.628396213054657, "sibling_score": 0.628396213054657, "answer_score": null, "sibling_qid": "KOC-2026-09-2201-Q002", "sibling_text": "flashing of alternator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Generator started but no voltage developing — reasons, and your action as Second Engineer", "cross_family": false }, { "answer_id": "ALT-MAINT-A-001", "score": 0.6029513478279114, "sibling_score": 0.6029513478279114, "answer_score": null, "sibling_qid": "MUM-2026-06-3653-Q019", "sibling_text": "alternator routines", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Routine maintenance & care of a ship’s alternator", "cross_family": false }, { "answer_id": "ALT-MTN-B-005", "score": 0.6021959781646729, "sibling_score": 0.6021959781646729, "answer_score": null, "sibling_qid": "KOL-2025-01-2761-Q006", "sibling_text": "alternator overhaul procedure", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Overhaul, survey and opened-up checks", "cross_family": false } ] }, { "qid": "MUM-2025-09-1662-Q005", "text": "What is back emf?", "family": "Electrical - Motors & Starters", "subtopic": "DC Motor / Commutator", "tid": "MUM-2025-09-1662", "tray": "review", "candidates": [ { "answer_id": "DCMOT-A-003", "score": 0.6614323258399963, "sibling_score": 0.6614323258399963, "answer_score": 0.4671675533056259, "sibling_qid": "KOL-2022-01-2533-Q001", "sibling_text": "back emf", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Back EMF in a DC motor", "cross_family": false }, { "answer_id": "FAR-EMI-001", "score": 0.5407724380493164, "sibling_score": 0.5407724380493164, "answer_score": null, "sibling_qid": "MUM-2025-08-1573-Q002", "sibling_text": "back emf and what law talks about it", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Faraday's laws of electromagnetic induction and Lenz's law — and their shipboard use", "cross_family": true }, { "answer_id": "DCMOT-A-002", "score": 0.3817998647689819, "sibling_score": null, "answer_score": 0.3817998647689819, "sibling_qid": "", "sibling_text": "working principle fleming s rule and testing force on a current carrying conductor in a field f b i l direction by fleming sleft hand rule motor the right hand rule is the generator rule and gives the back emf direction commutator brushes reverse each armature coil s current as the coil passes the brush neutral zone in the elementary two pole picture twice per revolution unidirectional torque with", "sibling_family": "", "via": "answer_title", "answer_title": "Working principle, Fleming's rule and testing", "cross_family": false } ] }, { "qid": "MUM-2025-09-1664-Q001", "text": "(First Attempt for Function 5)", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-09-1664", "tray": "new", "candidates": [ { "answer_id": "TC-A-010", "score": 0.48997795581817627, "sibling_score": 0.48997795581817627, "answer_score": null, "sibling_qid": "KOL-2018-05-3963-Q008", "sibling_text": "what is impedence 5 rao gave me func 5 asked me to repeat func 3", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Impedance and the RC circuit — finding Xc and XL", "cross_family": true }, { "answer_id": "IMO-CODES-P03-002", "score": 0.4622687101364136, "sibling_score": 0.4622687101364136, "answer_score": null, "sibling_qid": "MUM-2026-03-0815-Q003", "sibling_text": "which function", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": false }, { "answer_id": "LLC-SURV-P02-002", "score": 0.459428608417511, "sibling_score": 0.459428608417511, "answer_score": null, "sibling_qid": "KOL-2022-02-0601-Q004", "sibling_text": "sheer 5", "sibling_family": "", "via": "sibling", "answer_title": "2. Structural and watertight-integrity items: sheer, superstructure and flush deck", "cross_family": false } ] }, { "qid": "MUM-2025-09-1672-Q002", "text": "2 GMDSS explain", "family": "SOLAS - LSA & Lifeboats", "subtopic": "EPIRB / SART", "tid": "MUM-2025-09-1672", "tray": "new", "candidates": [ { "answer_id": "UNL-330-001", "score": 0.6165868043899536, "sibling_score": 0.6165868043899536, "answer_score": null, "sibling_qid": "MUM-2026-05-3193-Q007", "sibling_text": "gmdss", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What is the function of the main air compressor unloader?", "cross_family": false }, { "answer_id": "bdc-p05-03", "score": 0.5361707210540771, "sibling_score": 0.5361707210540771, "answer_score": null, "sibling_qid": "MUM-2026-05-3273-Q003", "sibling_text": "gmdss and equipment under this", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "CQ-BDC-025 GMDSS reserve battery — requirement, supply, voltage and equipment Medium", "cross_family": true }, { "answer_id": "BDC-P02-04", "score": 0.5120018124580383, "sibling_score": 0.5120018124580383, "answer_score": null, "sibling_qid": "CHE-2026-05-0589-Q007", "sibling_text": "why gmdss have dc supply", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "The ship's 24 V DC system — how it is produced, why DC, and what it supplies", "cross_family": true } ] }, { "qid": "MUM-2025-09-1672-Q003", "text": "3 Navtex explain", "family": "SOLAS - LSA & Lifeboats", "subtopic": "EPIRB / SART", "tid": "MUM-2025-09-1672", "tray": "new", "candidates": [ { "answer_id": "EXD-EXI-A-001", "score": 0.4803294539451599, "sibling_score": 0.4803294539451599, "answer_score": null, "sibling_qid": "CHE-2025-12-0326-Q003", "sibling_text": "3 what is ex d ex i ex e explain", "sibling_family": "", "via": "sibling", "answer_title": "Ex i (intrinsically safe) vs Ex d (flameproof / explosion-proof) — the difference", "cross_family": false }, { "answer_id": "A6-NSEC-005", "score": 0.44464829564094543, "sibling_score": 0.44464829564094543, "answer_score": null, "sibling_qid": "CHE-2025-08-0425-Q004", "sibling_text": "seemp 1 2 3 explanations", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP — Part I, II & III", "cross_family": true }, { "answer_id": "SEEMP-123-B-001", "score": 0.4421449303627014, "sibling_score": 0.4421449303627014, "answer_score": null, "sibling_qid": "KOC-2024-05-0340-Q003", "sibling_text": "seemp part 3 explain and how it affects the ship operator or ship owner expecting what action as a ship operator will take for seemp 3", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP Part III — the ship's operational carbon-intensity (CII) plan", "cross_family": true } ] }, { "qid": "MUM-2025-09-1673-Q002", "text": "surge resistor", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Zener / Diode / Rectifier", "tid": "MUM-2025-09-1673", "tray": "review", "candidates": [ { "answer_id": "SCR-306-B-007", "score": 0.804385781288147, "sibling_score": 0.804385781288147, "answer_score": 0.4567343771457672, "sibling_qid": "MUM-2026-05-3243-Q002", "sibling_text": "surge resistor", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "SCR snubber circuit and dv/dt protection", "cross_family": false }, { "answer_id": "ELEC-ELX-017", "score": 0.6239256858825684, "sibling_score": 0.6239256858825684, "answer_score": 0.48825216591358184, "sibling_qid": "CHE-2025-08-0289-Q013", "sibling_text": "varistor", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Varistor", "cross_family": false }, { "answer_id": "TC-SURGE-004", "score": 0.6228781938552856, "sibling_score": 0.6228781938552856, "answer_score": null, "sibling_qid": "MUM-2025-12-1233-Q007", "sibling_text": "surge line", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "What is the turbocharger surge line or surge limit, how is it found and plotted, and what is its significance?", "cross_family": true } ] }, { "qid": "MUM-2025-09-1676-Q003", "text": "Generatoor not building voltage n too cross question", "family": "Electrical - Generator & Alternator", "subtopic": "Voltage Not Coming", "tid": "MUM-2025-09-1676", "tray": "review", "candidates": [ { "answer_id": "NO-VOLT-001", "score": 0.7252399921417236, "sibling_score": 0.7252399921417236, "answer_score": 0.4928341627120972, "sibling_qid": "MUM-2026-06-3484-Q007", "sibling_text": "your junior told no voltage showing after generator start", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "The 3/E reports the generator has started but no voltage is showing — reasons, and your actions as 2/E", "cross_family": false }, { "answer_id": "RES-MAG-002", "score": 0.6973342895507812, "sibling_score": 0.6973342895507812, "answer_score": 0.5003311097621918, "sibling_qid": "KOL-2016-07-2060-Q002", "sibling_text": "generatr running bt no voltage reason", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Generator started but no voltage developing — reasons, and your action as Second Engineer", "cross_family": false }, { "answer_id": "NO-VOLT-002", "score": 0.69293212890625, "sibling_score": 0.69293212890625, "answer_score": 0.4736638873815536, "sibling_qid": "MUM-2026-06-3363-Q002", "sibling_text": "generator started but voltage is less than rated what is the issue what is your action power factor and cross which component control power factor in alternator peak factor", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "After starting, before taking load, the voltage is lower than rated — what would you do?", "cross_family": false } ] }, { "qid": "MUM-2025-09-1676-Q004", "text": "Starter parts", "family": "Electrical - Motors & Starters", "subtopic": "Starter Panel / Control Circuit", "tid": "MUM-2025-09-1676", "tray": "review", "candidates": [ { "answer_id": "IMSP-004", "score": 0.7283872365951538, "sibling_score": 0.7283872365951538, "answer_score": null, "sibling_qid": "MUM-2026-05-3336-Q010", "sibling_text": "starter components", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Explain the star-delta starter, and what you find inside it when you open it — its components.", "cross_family": false }, { "answer_id": "STR-DEC-A-001", "score": 0.6745486855506897, "sibling_score": 0.6745486855506897, "answer_score": null, "sibling_qid": "KOC-2022-09-1794-Q008", "sibling_text": "starters", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "IMSP-002", "score": 0.6450552940368652, "sibling_score": 0.6450552940368652, "answer_score": null, "sibling_qid": "MUM-2025-11-1754-Q002", "sibling_text": "type starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What types of starter are used onboard? Name and explain the starting methods for a three-phase induction motor, including the soft starter.", "cross_family": false } ] }, { "qid": "MUM-2025-09-1678-Q002", "text": "How to order motor", "family": "Electrical - Motors & Starters", "subtopic": "Motor Specification / Ordering", "tid": "MUM-2025-09-1678", "tray": "review", "candidates": [ { "answer_id": "BRG-NOM-001", "score": 0.825907289981842, "sibling_score": 0.825907289981842, "answer_score": null, "sibling_qid": "MUM-2026-09-3871-Q005", "sibling_text": "how to order motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Bearing Numbers, Suffixes and What to State When Ordering", "cross_family": false }, { "answer_id": "IP-ENCL-002", "score": 0.6724303960800171, "sibling_score": 0.6724303960800171, "answer_score": null, "sibling_qid": "KOC-2026-10-2222-Q002", "sibling_text": "how to order sea water motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Suitable IP rating by location — ER, deck, pump, generator", "cross_family": false }, { "answer_id": "SGM-ELEC-002", "score": 0.646187961101532, "sibling_score": 0.646187961101532, "answer_score": 0.4922075510025024, "sibling_qid": "MUM-2025-08-1605-Q001", "sibling_text": "steering motor type and difference from other er motors how to order motor over speed test over current test", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What type of motor is the steering gear motor, how does it differ from other engine-room motors, and how do you order one?", "cross_family": false } ] }, { "qid": "MUM-2025-09-1681-Q001", "text": "Residual magnetism", "family": "Electrical - Generator & Alternator", "subtopic": "Residual Magnetism / Flashing", "tid": "MUM-2025-09-1681", "tray": "review", "candidates": [ { "answer_id": "RES-MAG-001", "score": 0.8033464550971985, "sibling_score": 0.8033464550971985, "answer_score": 0.507065463066101, "sibling_qid": "KOC-2026-04-0911-Q002", "sibling_text": "residual magnetism", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Residual magnetism — what it is, where it is stored, how it is lost and how you restore it", "cross_family": false }, { "answer_id": "AR-263-001", "score": 0.350581955909729, "sibling_score": null, "answer_score": 0.350581955909729, "sibling_qid": "", "sibling_text": "what is armature reaction and where is it found armature mmf from load current acting on the main field mmf no load current no reaction with brushes on neutral the dc machine effect is mainly cross magnetizing pole tip saturation still gives a small net flux weakening a true demagnetizing component comes in only when the brushes are shifted off neutral", "sibling_family": "", "via": "answer_title", "answer_title": "What is armature reaction, and where is it found?", "cross_family": false }, { "answer_id": "XFMR-THY-G-004", "score": 0.34576117992401123, "sibling_score": null, "answer_score": 0.34576117992401123, "sibling_qid": "", "sibling_text": "4 transformer leakage flux and magnetic reluctance", "sibling_family": "", "via": "answer_title", "answer_title": "4. Transformer leakage flux and magnetic reluctance", "cross_family": false } ] }, { "qid": "MUM-2025-09-1682-Q003", "text": "DOL starter - Application in ER", "family": "Electrical - Motors & Starters", "subtopic": "Type of Starter Decision", "tid": "MUM-2025-09-1682", "tray": "new", "candidates": [ { "answer_id": "STARTER-DEC-B-002", "score": 0.6073072552680969, "sibling_score": 0.6073072552680969, "answer_score": null, "sibling_qid": "KOL-2026-04-2984-Q002", "sibling_text": "explain dol starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Why a starter is needed & reducing starting current", "cross_family": false }, { "answer_id": "STARTER-DEC-B-003", "score": 0.5993296504020691, "sibling_score": 0.5993296504020691, "answer_score": 0.2872299313545227, "sibling_qid": "KOC-2025-07-1559-Q009", "sibling_text": "dol starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "DOL starter — use, current, range and limits", "cross_family": false }, { "answer_id": "IMSP-004", "score": 0.5205357670783997, "sibling_score": 0.5205357670783997, "answer_score": null, "sibling_qid": "MUM-2026-03-2002-Q001", "sibling_text": "start delta starter components", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Explain the star-delta starter, and what you find inside it when you open it — its components.", "cross_family": false } ] }, { "qid": "MUM-2025-09-1682-Q005", "text": "Electrical Survey what all certificate , documents will you present to the surve", "family": "Surveys - Statutory", "subtopic": "Audit", "tid": "MUM-2025-09-1682", "tray": "review", "candidates": [ { "answer_id": "ELEC-SURV-004", "score": 0.8241280913352966, "sibling_score": 0.8241280913352966, "answer_score": null, "sibling_qid": "MUM-2026-02-1967-Q006", "sibling_text": "all docs and certifications for electrical survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Preparing & carrying out the survey as Second Engineer", "cross_family": false }, { "answer_id": "ELEC-SURV-003", "score": 0.8176277279853821, "sibling_score": 0.8176277279853821, "answer_score": 0.5354883432388305, "sibling_qid": "MUM-2025-11-1754-Q008", "sibling_text": "electrical certificate need to provide to the surveyor", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Documents, certificates & trend records", "cross_family": false }, { "answer_id": "IAPP-595-001", "score": 0.5278272449970245, "sibling_score": null, "answer_score": 0.5278272449970245, "sibling_qid": "", "sibling_text": "you have an iapp survey tomorrow what preparation do you do what will the surveyor check and what documents and certificates will you show him confirm the survey type first regulation 5 provides initial annual intermediate renewal and additional surveys the scope is not the same the iapp certificate plus its supplement the record of construction and equipment permanently attached the certificate m", "sibling_family": "", "via": "answer_title", "answer_title": "You have an IAPP survey tomorrow. What preparation do you do, what will the surveyor check, and what documents and certificates will you show him?", "cross_family": false } ] }, { "qid": "MUM-2025-09-1695-Q005", "text": "Electrical certificate need to provide to the surveyor", "family": "Surveys - Statutory", "subtopic": "Audit", "tid": "MUM-2025-09-1695", "tray": "review", "candidates": [ { "answer_id": "ELEC-SURV-003", "score": 0.8632426857948303, "sibling_score": 0.8632426857948303, "answer_score": 0.49886155128479004, "sibling_qid": "MUM-2025-11-1754-Q008", "sibling_text": "electrical certificate need to provide to the surveyor", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Documents, certificates & trend records", "cross_family": false }, { "answer_id": "ELEC-SURV-004", "score": 0.7647549510002136, "sibling_score": 0.7647549510002136, "answer_score": null, "sibling_qid": "MUM-2026-02-1967-Q006", "sibling_text": "all docs and certifications for electrical survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Preparing & carrying out the survey as Second Engineer", "cross_family": false }, { "answer_id": "ELEC-SURV-008", "score": 0.49201497733592986, "sibling_score": null, "answer_score": 0.49201497733592986, "sibling_qid": "", "sibling_text": "types scope of electrical surveys onboard named surveys alternator generator survey main switchboard msb survey insulation resistance survey emergency electrical equipment survey navigation light indicator survey motors starters cables steering gear electrical ums automation alarms controls fire detection survey", "sibling_family": "", "via": "answer_title", "answer_title": "Types & scope of electrical surveys onboard", "cross_family": false } ] }, { "qid": "MUM-2025-09-1695-Q006", "text": "Cable used between busbar and alternator", "family": "", "subtopic": "Cable Types & Insulation", "tid": "MUM-2025-09-1695", "tray": "review", "candidates": [ { "answer_id": "CABLE-INS-E-003", "score": 0.8235803246498108, "sibling_score": 0.8235803246498108, "answer_score": 0.5638206869363784, "sibling_qid": "MUM-2026-05-3191-Q005", "sibling_text": "cable used between busbar and alternator", "sibling_family": "Electrical - Cables & Insulation", "via": "sibling", "answer_title": "Cable / conductor arrangement: alternator to MSB", "cross_family": false }, { "answer_id": "CB-ACB-F-001", "score": 0.6604568958282471, "sibling_score": 0.6604568958282471, "answer_score": null, "sibling_qid": "KOL-2017-05-2130-Q003", "sibling_text": "how does current go from alternator to busbar told him via acb", "sibling_family": "", "via": "sibling", "answer_title": "ACB function & working principle in the ship distribution system", "cross_family": false }, { "answer_id": "CABLE-INSUL-D-001", "score": 0.6601400375366211, "sibling_score": 0.6601400375366211, "answer_score": null, "sibling_qid": "KOL-2023-01-2634-Q004", "sibling_text": "cable insulation type of alternator 5 over current trip test fu 6", "sibling_family": "", "via": "sibling", "answer_title": "Insulation: materials, classes and required properties", "cross_family": false } ] }, { "qid": "MUM-2025-09-1699-Q004", "text": "Brushless alternator maintenance", "family": "Electrical - Generator & Alternator", "subtopic": "Brushless Alternator", "tid": "MUM-2025-09-1699", "tray": "review", "candidates": [ { "answer_id": "BL-ALT-C-004", "score": 0.8413252234458923, "sibling_score": 0.8413252234458923, "answer_score": 0.6223629295825958, "sibling_qid": "KOL-2019-05-2286-Q001", "sibling_text": "brushless alternator periodic maintenance", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Brushless alternator / excitation maintenance", "cross_family": false }, { "answer_id": "BL-ALT-C-001", "score": 0.8191463947296143, "sibling_score": 0.8191463947296143, "answer_score": null, "sibling_qid": "KOL-2018-05-2195-Q001", "sibling_text": "alternator everything why brushless advantage maintenance", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Electrical advantages of brushless excitation over brushed / static", "cross_family": false }, { "answer_id": "BRUSHALT-A-001", "score": 0.7750492095947266, "sibling_score": 0.7750492095947266, "answer_score": null, "sibling_qid": "KOL-2019-10-2338-Q002", "sibling_text": "brushless alternator maintenence exitation system", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01 · Working principle of the brushless alternator / brushless excitation systemHigh", "cross_family": false } ] }, { "qid": "MUM-2025-09-2392-Q001", "text": "Status of other orels and written", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-09-2392", "tray": "review", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.6524850726127625, "sibling_score": 0.6524850726127625, "answer_score": null, "sibling_qid": "MUM-2026-05-3187-Q001", "sibling_text": "status of other orals and written", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": false }, { "answer_id": "DUS-P1-02", "score": 0.418615460395813, "sibling_score": 0.418615460395813, "answer_score": null, "sibling_qid": "KOL-2025-08-3851-Q006", "sibling_text": "drydock plans rudder checks cross questions what about other written oral exams status told waiting for naval written result to come all other paper cleared", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Plans, drawings and special tools kept ready for drydock — engine-department view", "cross_family": true }, { "answer_id": "EXHV-P01-001", "score": 0.41296878457069397, "sibling_score": 0.41296878457069397, "answer_score": null, "sibling_qid": "KOC-2026-08-2106-Q001", "sibling_text": "status of written oral company type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": true } ] }, { "qid": "MUM-2025-09-2392-Q002", "text": "Have you ever seen a class certificate", "family": "Surveys - Statutory", "subtopic": "Condition of Class", "tid": "MUM-2025-09-2392", "tray": "review", "candidates": [ { "answer_id": "CERT-LIST-P02-005", "score": 0.8031741976737976, "sibling_score": 0.8031741976737976, "answer_score": 0.4141666546463966, "sibling_qid": "MUM-2026-05-3187-Q002", "sibling_text": "have you ever seen a class certificate", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Class certificate / classification certificate", "cross_family": false }, { "answer_id": "CERT-LIST-P01-001", "score": 0.7174258828163147, "sibling_score": 0.7174258828163147, "answer_score": null, "sibling_qid": "KOL-2026-08-4162-Q004", "sibling_text": "what are the certificates issued by the class", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "List the statutory certificates carried onboard a ship.", "cross_family": false }, { "answer_id": "CSAS-SURV-001", "score": 0.40159708112478254, "sibling_score": null, "answer_score": 0.40159708112478254, "sibling_qid": "", "sibling_text": "certificate of class what it is who issues it what class looks after issuedby the classification society irs lr dnv abs not by flag or imo means built and maintained to the society s rules condition satisfactory at the last survey", "sibling_family": "", "via": "answer_title", "answer_title": "Certificate of class — what it is, who issues it, what class looks after", "cross_family": false } ] }, { "qid": "MUM-2025-09-2392-Q003", "text": "What is that? Why class certificate?", "family": "Surveys - Statutory", "subtopic": "Condition of Class", "tid": "MUM-2025-09-2392", "tray": "review", "candidates": [ { "answer_id": "CERT-LIST-P02-005", "score": 0.80292147397995, "sibling_score": 0.80292147397995, "answer_score": 0.4529634594917297, "sibling_qid": "MUM-2026-05-3187-Q002S2", "sibling_text": "what is that why class certificate", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Class certificate / classification certificate", "cross_family": false }, { "answer_id": "CERT-LIST-P01-001", "score": 0.7248873114585876, "sibling_score": 0.7248873114585876, "answer_score": null, "sibling_qid": "KOL-2026-08-4162-Q004", "sibling_text": "what are the certificates issued by the class", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "List the statutory certificates carried onboard a ship.", "cross_family": false }, { "answer_id": "CSAS-SURV-001", "score": 0.43457614481449125, "sibling_score": null, "answer_score": 0.43457614481449125, "sibling_qid": "", "sibling_text": "certificate of class what it is who issues it what class looks after issuedby the classification society irs lr dnv abs not by flag or imo means built and maintained to the society s rules condition satisfactory at the last survey", "sibling_family": "", "via": "answer_title", "answer_title": "Certificate of class — what it is, who issues it, what class looks after", "cross_family": false } ] }, { "qid": "MUM-2025-09-2392-Q004", "text": "If you have some defects onboard, what will be the action of class..??", "family": "Surveys - Statutory", "subtopic": "Defects on Board / Class Action", "tid": "MUM-2025-09-2392", "tray": "review", "candidates": [ { "answer_id": "COC-001", "score": 0.7704786658287048, "sibling_score": 0.7704786658287048, "answer_score": 0.40572979003190995, "sibling_qid": "MUM-2026-05-3187-Q002S3", "sibling_text": "if you have some defects onboard what will be the action of class", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is a Condition of Class? Give examples, say where it is found, how much time is given to rectify it, and what happens if it is not met in time.", "cross_family": false }, { "answer_id": "PW-327-003", "score": 0.4619661867618561, "sibling_score": 0.4619661867618561, "answer_score": null, "sibling_qid": "MUM-2022-09-2145-Q010", "sibling_text": "if in drydock crack on shell plate welding action if no class surveyor available", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "3. Shell / deck plate repair and renewal in dry dock (class context)", "cross_family": true }, { "answer_id": "ESP-A-003", "score": 0.46110451221466064, "sibling_score": 0.46110451221466064, "answer_score": null, "sibling_qid": "KOL-2019-03-0268-Q003", "sibling_text": "enhanced survey program what all things noted in document of file then if not maintained and recorded by 2 engineer then what will be consequences ans told every thing that vessel will offhire detained major nc class certificate invalid still he said consequences far worst then all this", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What documents, ESP file, certificates, class notation and access are required for ESP?", "cross_family": false } ] }, { "qid": "MUM-2025-09-2392-Q011", "text": "Limits..??", "family": "", "subtopic": "", "tid": "MUM-2025-09-2392", "tray": "review", "candidates": [ { "answer_id": "ENG-DERATE-003", "score": 0.6633301377296448, "sibling_score": 0.6633301377296448, "answer_score": null, "sibling_qid": "KOL-2017-03-1281-Q005", "sibling_text": "what were the limits", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What limits or restrictions apply after derating, and why is performance taken at ~80–85% MCR?", "cross_family": false }, { "answer_id": "BWM-D1D2-P03-001", "score": 0.6229091882705688, "sibling_score": 0.6229091882705688, "answer_score": null, "sibling_qid": "KOC-2024-08-0394-Q008", "sibling_text": "d2 all limits and regulations with values and name", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Regulation D-2 — ballast water performance / discharge standardHigh", "cross_family": false }, { "answer_id": "ANCHR-B-003", "score": 0.6228175163269043, "sibling_score": 0.6228175163269043, "answer_score": null, "sibling_qid": "MUM-2026-06-3573-Q009", "sibling_text": "chain ranging and all limit", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Ranging the cable — what it is, why, and the parts", "cross_family": false } ] }, { "qid": "MUM-2025-09-2392-Q012", "text": "What to do if it’s near the limit..??", "family": "", "subtopic": "", "tid": "MUM-2025-09-2392", "tray": "new", "candidates": [ { "answer_id": "CREQ-542-005", "score": 0.45807909965515137, "sibling_score": 0.45807909965515137, "answer_score": 0.32846025228500364, "sibling_qid": "CHE-2025-12-0460-Q009", "sibling_text": "what to do if you don t have spare and clearances are out of limit", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "No spare available and clearances are out of limit — what do you do?", "cross_family": false }, { "answer_id": "ESE-P02-001", "score": 0.43972480297088623, "sibling_score": 0.43972480297088623, "answer_score": null, "sibling_qid": "CHE-2026-05-0547-Q002", "sibling_text": "thresholds limit if value is within limit then can we enter", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "ESE-P02-01. Threshold limits, TLV and toxic-gas interpretation for entry", "cross_family": false }, { "answer_id": "SEW-DISCH-005", "score": 0.42961153388023376, "sibling_score": 0.42961153388023376, "answer_score": null, "sibling_qid": "CHE-2026-05-0566-Q006", "sibling_text": "what is bod if value above the limit what will happen", "sibling_family": "MARPOL - Annex IV (Sewage)", "via": "sibling", "answer_title": "5. Sewage effluent testing and BOD", "cross_family": false } ] }, { "qid": "MUM-2025-09-2392-Q014", "text": "Both are same length..??", "family": "", "subtopic": "", "tid": "MUM-2025-09-2392", "tray": "new", "candidates": [ { "answer_id": "OWS-15PPM-006", "score": 0.532001256942749, "sibling_score": 0.532001256942749, "answer_score": null, "sibling_qid": "KOC-2022-02-1172-Q010", "sibling_text": "odme diff bw both", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "BK-003", "score": 0.4830515384674072, "sibling_score": 0.4830515384674072, "answer_score": null, "sibling_qid": "KOC-2025-07-0633-Q018", "sibling_text": "length deciding factor", "sibling_family": "", "via": "sibling", "answer_title": "What are the bilge-keel design, length, depth and protrusion requirements?", "cross_family": false }, { "answer_id": "LS-IMB-A-001", "score": 0.47845008969306946, "sibling_score": 0.47845008969306946, "answer_score": null, "sibling_qid": "MUM-2026-02-1973-Q002", "sibling_text": "2 a e running in parallel kw not equal reasons", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Two paralleled generators sharing unequal load — cause and correction", "cross_family": false } ] }, { "qid": "MUM-2025-09-2392-Q019", "text": "Type of steel used in ship construction", "family": "Ship Construction & Stability", "subtopic": "", "tid": "MUM-2025-09-2392", "tray": "review", "candidates": [ { "answer_id": "STEEL-GR-002", "score": 0.7972401976585388, "sibling_score": 0.7972401976585388, "answer_score": null, "sibling_qid": "MUM-2026-06-3458-Q010", "sibling_text": "grade of steel used for ship construction and cross", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Mild steel — composition, use, and how it differs from cast iron", "cross_family": false }, { "answer_id": "STEEL-GR-001", "score": 0.7848596572875977, "sibling_score": 0.7848596572875977, "answer_score": 0.5856187999248504, "sibling_qid": "MUM-2026-05-3186-Q004", "sibling_text": "type of steel used in ship construction", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Materials and steel grades for ship and hull construction", "cross_family": true }, { "answer_id": "STEEL-GR-003", "score": 0.7170592546463013, "sibling_score": 0.7170592546463013, "answer_score": 0.540326851606369, "sibling_qid": "KOL-2021-03-0481-Q001", "sibling_text": "use of high tensile steel for ship manufacturing", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "High-tensile steel — where and why it is used", "cross_family": true } ] }, { "qid": "MUM-2025-09-2392-Q022", "text": "What type of brake in it", "family": "", "subtopic": "", "tid": "MUM-2025-09-2392", "tray": "review", "candidates": [ { "answer_id": "WIND-WNCH-006", "score": 0.6840149164199829, "sibling_score": 0.6840149164199829, "answer_score": 0.5436468094587326, "sibling_qid": "MUM-2026-05-3186-Q005S2", "sibling_text": "what type of brake in it", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Brake types, adjustment and slipping / damaged brake", "cross_family": false }, { "answer_id": "WBRT-003", "score": 0.6798938512802124, "sibling_score": 0.6798938512802124, "answer_score": 0.49123546183109285, "sibling_qid": "MUM-2024-07-0182-Q009", "sibling_text": "types of brakes", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Brake type and arrangement; holding versus rendering capacity", "cross_family": false }, { "answer_id": "CRANE-EMBRK-001", "score": 0.656450629234314, "sibling_score": 0.656450629234314, "answer_score": null, "sibling_qid": "KOC-2022-09-0099-Q022", "sibling_text": "electro magnetic brake", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Working and purpose of the electromagnetic brake, and where it is used onboard", "cross_family": false } ] }, { "qid": "MUM-2025-09-2392-Q024", "text": "You joined as 2E and found one liner is cracked, company asked you to change it. How will you find the spare liner is new..?? What all certificates you check related to spare liner..?? What all checks you will do in spare liner..??", "family": "2-Stroke - Liner & Piston Overhaul", "subtopic": "Liner Honing / Wear Limits", "tid": "MUM-2025-09-2392", "tray": "review", "candidates": [ { "answer_id": "CYL-LINER-P03-002", "score": 0.830861508846283, "sibling_score": 0.830861508846283, "answer_score": null, "sibling_qid": "MUM-2026-05-3186-Q006", "sibling_text": "you joined as 2e and found one liner is cracked company asked you to change it how will you find the spare liner is new what all certificates you check related to spare liner what all checks you will do in spare liner", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Detecting and confirming a cracked or leaking liner — and pinning the unit", "cross_family": true }, { "answer_id": "CYL-LINER-P03-005", "score": 0.6936016082763672, "sibling_score": 0.6936016082763672, "answer_score": 0.6021200984716415, "sibling_qid": "MUM-2026-06-3537-Q005", "sibling_text": "what certificates are present for new liner if we have to install new liner", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Spare cylinder liner — what checks and certificates before you fit it?", "cross_family": true }, { "answer_id": "CYL-LINER-P03-007", "score": 0.6531524658203125, "sibling_score": 0.6531524658203125, "answer_score": null, "sibling_qid": "KOL-2021-03-1582-Q003", "sibling_text": "checks in liner during overhaul", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Cylinder liner checks at overhaul, decarb and under-piston inspection", "cross_family": true } ] }, { "qid": "MUM-2025-09-2394-Q001", "text": "castiron welding which electrode", "family": "Workshop & Welding", "subtopic": "Cast Iron Welding", "tid": "MUM-2025-09-2394", "tray": "review", "candidates": [ { "answer_id": "WELD-B-001", "score": 0.8254507184028625, "sibling_score": 0.8254507184028625, "answer_score": null, "sibling_qid": "MUM-2026-06-3641-Q001", "sibling_text": "cast iron welding which electrode", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding & crack-repair of aluminium and cast iron, including metal stitching", "cross_family": false }, { "answer_id": "LH-ELEC-001", "score": 0.7379176020622253, "sibling_score": 0.7379176020622253, "answer_score": null, "sibling_qid": "MUM-2026-06-3451-Q014", "sibling_text": "ci welding electrodes", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "1. Where are low-hydrogen electrodes used onboard?", "cross_family": false }, { "answer_id": "LH-ELEC-003", "score": 0.5416234940290451, "sibling_score": null, "answer_score": 0.5416234940290451, "sibling_qid": "", "sibling_text": "3 how do you select or order the correct welding electrode or rod match to base material and strength first mild steel high tensile stainless cast iron this fixes the electrode family then coating type for the duty rutile e g e6013 general basic low hydrogen e7018 crack sensitive or high tensile", "sibling_family": "", "via": "answer_title", "answer_title": "3. How do you select or order the correct welding electrode or rod?", "cross_family": false } ] }, { "qid": "MUM-2025-09-2394-Q003", "text": "how to paint rudder inside", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Painting", "tid": "MUM-2025-09-2394", "tray": "review", "candidates": [ { "answer_id": "HULL-PAINT-002", "score": 0.7521746754646301, "sibling_score": 0.7521746754646301, "answer_score": null, "sibling_qid": "CHE-2026-02-0110-Q012", "sibling_text": "rudder internal painting", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Types of hull coating, the paint scheme by section, and why each is used", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.7521746754646301, "sibling_score": 0.7521746754646301, "answer_score": null, "sibling_qid": "MUM-2026-05-3150-Q003", "sibling_text": "rudder internal painting", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "TRS-002", "score": 0.5205664038658142, "sibling_score": 0.5205664038658142, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false } ] }, { "qid": "MUM-2025-09-2395-Q001", "text": "Type of engine sailed", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2025-09-2395", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8485499024391174, "sibling_score": 0.8485499024391174, "answer_score": null, "sibling_qid": "MUM-2026-04-1007-Q002", "sibling_text": "type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.7673790454864502, "sibling_score": 0.7673790454864502, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q001", "sibling_text": "type of ship sailed and engines details", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7356159687042236, "sibling_score": 0.7356159687042236, "answer_score": null, "sibling_qid": "KOL-2025-12-2031-Q002", "sibling_text": "type of ship and engine sailed engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "MUM-2025-09-2395-Q003", "text": "How Fuel injection happens in ME-C", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Injection System", "tid": "MUM-2025-09-2395", "tray": "review", "candidates": [ { "answer_id": "FIS-221-002", "score": 0.7321856617927551, "sibling_score": 0.7321856617927551, "answer_score": 0.5796678632497787, "sibling_qid": "MUM-2026-06-3638-Q003", "sibling_text": "how fuel injection happens in me c", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How fuel injection takes place in an ME / ME-C / ME-B engine", "cross_family": false }, { "answer_id": "CR-248-001", "score": 0.6984090209007263, "sibling_score": 0.6984090209007263, "answer_score": null, "sibling_qid": "MUM-2025-05-0277-Q010", "sibling_text": "how fuel injection takes place in me c engine", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "The common rail fuel injection system — layout, working sequence, rail valves, timing & quantity control", "cross_family": false }, { "answer_id": "FIVA-220-002", "score": 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How would you approach a cast-iron valve repair when the examiner probes welding and low-hydrogen electrodes?", "cross_family": false }, { "answer_id": "WELD-PATM-011", "score": 0.48822728991508485, "sibling_score": null, "answer_score": 0.48822728991508485, "sibling_qid": "", "sibling_text": "arc welding defects porosity trapped gas lost shield damp rods dirty oily surface slag inclusion slag not chipped cleaned between passes", "sibling_family": "", "via": "answer_title", "answer_title": "Arc welding defects", "cross_family": false } ] }, { "qid": "MUM-2025-09-2417-Q001", "text": "Cast iron welding.", "family": "Workshop & Welding", "subtopic": "Cast Iron Welding", "tid": "MUM-2025-09-2417", "tray": "review", "candidates": [ { "answer_id": "WELD-B-001", "score": 0.8305385708808899, "sibling_score": 0.8305385708808899, "answer_score": 0.5475608021020889, "sibling_qid": "MUM-2026-05-3209-Q007", "sibling_text": "cast iron welding", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding & crack-repair of aluminium and cast iron, including metal stitching", "cross_family": false }, { "answer_id": "LH-ELEC-006", "score": 0.5096289575099945, "sibling_score": null, "answer_score": 0.5096289575099945, "sibling_qid": "", "sibling_text": "6 how would you approach a cast iron valve repair when the examiner probes welding and low hydrogen electrodes first response replace or fit a sound same size valve a welded cast iron repair is a stop gap not equal to new if welding cast iron not a plain mild steel low hydrogen rod the high carbon makes a hard brittle cracking weld", "sibling_family": "", "via": "answer_title", "answer_title": "6. How would you approach a cast-iron valve repair when the examiner probes welding and low-hydrogen electrodes?", "cross_family": false }, { "answer_id": "METAL-LOCK-001", "score": 0.49331161975860593, "sibling_score": null, "answer_score": 0.49331161975860593, "sibling_qid": "", "sibling_text": "what is metal locking stitching why use it materials benefits cold process zero heat applied at any stage for brittle cast iron and other castings where welding risks further cracking or a brittle heat affected zone", "sibling_family": "", "via": "answer_title", "answer_title": "What is metal locking / stitching, why use it, materials & benefits", "cross_family": false } ] }, { "qid": "MUM-2025-09-2418-Q002", "text": "+ Type of ships sailed=Chemical/Product Tanker", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-09-2418", "tray": "review", "candidates": [ { "answer_id": "IBC-BCH-B-004", "score": 0.8276237845420837, "sibling_score": 0.8276237845420837, "answer_score": null, "sibling_qid": "MUM-2026-05-3156-Q001", "sibling_text": "type of ships chemical tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Certificate of Fitness and MARPOL Annex II in practice", "cross_family": false }, { "answer_id": "IBC-BCH-B-002", "score": 0.8133074045181274, "sibling_score": 0.8133074045181274, "answer_score": null, "sibling_qid": "MUM-2026-04-0883-Q001", "sibling_text": "type of vessel sailed chem product tanker", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Chemical cargo categories — MARPOL Annex II and IBC Chapters 17 & 18", "cross_family": true }, { "answer_id": "BCH-IBC-A-001", "score": 0.8125676512718201, "sibling_score": 0.8125676512718201, "answer_score": null, "sibling_qid": "CHE-2026-03-0128-Q001", "sibling_text": "type of chemical tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type 1, Type 2 and Type 3 chemical tankers — the ship-type classification", "cross_family": false } ] }, { "qid": "MUM-2025-09-2418-Q005", "text": "+ How to increase efficiency of FWG", "family": "Workshop & Welding", "subtopic": "Boiler Plate Replacement", "tid": "MUM-2025-09-2418", "tray": "new", "candidates": [ { "answer_id": "FWG-RO-003", "score": 0.5151221752166748, "sibling_score": 0.5151221752166748, "answer_score": 0.3309410125017166, "sibling_qid": "MUM-2026-07-3669-Q001", "sibling_text": "fwg not producing efficiently reasons what to do", "sibling_family": "Fresh Water & Domestic Systems", "via": "sibling", "answer_title": "The FWG is not producing enough water or its efficiency has dropped. Reasons, checks and action?", "cross_family": true }, { "answer_id": "CPP-ATC-01", "score": 0.41739600896835327, "sibling_score": 0.41739600896835327, "answer_score": null, "sibling_qid": "KOL-2022-03-1668-Q005", "sibling_text": "efficient asking about some efficiency graph scavenge and", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "2-stroke versus 4-stroke air-side comparison — equal-power reading", "cross_family": true }, { "answer_id": "PF-A-004", "score": 0.4113790988922119, "sibling_score": 0.4113790988922119, "answer_score": null, "sibling_qid": "MUM-2023-12-1418-Q006", "sibling_text": "methods of improving pf", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "The bare 'power factor' prompt — and the drills it triggers", "cross_family": true } ] }, { "qid": "MUM-2025-09-2418-Q006", "text": "+ Why boiling point so low in FWG?", "family": "Workshop & Welding", "subtopic": "Boiler Plate Replacement", "tid": "MUM-2025-09-2418", "tray": "new", "candidates": [ { "answer_id": "FWG-RO-001", "score": 0.567952036857605, "sibling_score": 0.567952036857605, "answer_score": 0.41910884678363797, "sibling_qid": "MUM-2025-09-1197-Q006", "sibling_text": "fwg working principle did not accept low pressure evaporation and cooling", "sibling_family": "Fresh Water & Domestic Systems", "via": "sibling", "answer_title": "How is vacuum created in the FWG, why does it run under vacuum, and what if the vacuum will not come?", "cross_family": true }, { "answer_id": "LOP-582-001", "score": 0.4497634470462799, "sibling_score": 0.4497634470462799, "answer_score": null, "sibling_qid": "MUM-2026-06-3649-Q017", "sibling_text": "viscosity low reasons", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What are the reasons for low lubricating-oil viscosity?", "cross_family": true }, { "answer_id": "BWTEST-A-002", "score": 0.4277283549308777, "sibling_score": 0.4277283549308777, "answer_score": null, "sibling_qid": "KOC-2026-03-1111-Q008", "sibling_text": "when fwg water salinity 0ppm why are we doing boiler water treatment", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What does high boiler-water chloride, salinity or TDS indicate, and what action is required?", "cross_family": true } ] }, { "qid": "MUM-2025-09-2418-Q008", "text": "+ Is it same for all type engines? If yes, how it is done in other engines?", "family": "", "subtopic": "", "tid": "MUM-2025-09-2418", "tray": "new", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.5190129280090332, "sibling_score": 0.5190129280090332, "answer_score": null, "sibling_qid": "KOL-2026-03-2048-Q001", "sibling_text": "type of engine done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.48242419958114624, "sibling_score": 0.48242419958114624, "answer_score": null, "sibling_qid": "MUM-2026-09-3880-Q001", "sibling_text": "main engine type", "sibling_family": "2-Stroke - Operations & General", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.4607645869255066, "sibling_score": 0.4607645869255066, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false } ] }, { "qid": "MUM-2025-09-2419-Q001", "text": "Bottom end bearing clearance", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Bottom End Bearing", "tid": "MUM-2025-09-2419", "tray": "review", "candidates": [ { "answer_id": "BEB-B-002", "score": 0.8578682541847229, "sibling_score": 0.8578682541847229, "answer_score": 0.5603770077228546, "sibling_qid": "MUM-2025-07-1149-Q006", "sibling_text": "clearance of bottom end bearing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bottom End Bearing — Clearance Measurement", "cross_family": false }, { "answer_id": "AE-CRP-007", "score": 0.8279731869697571, "sibling_score": 0.8279731869697571, "answer_score": 0.5471228122711181, "sibling_qid": "KOC-2026-09-2213-Q004", "sibling_text": "ae bottom bearing clearance", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "AE big-end / bottom-end bearing — inspection, bedding, nip and crush", "cross_family": false }, { "answer_id": "XHD-BRG-B-004", "score": 0.7711706161499023, "sibling_score": 0.7711706161499023, "answer_score": null, "sibling_qid": "KOL-2021-02-3376-Q003", "sibling_text": "crosshead bearing and bottom end bearing how to measure clearance", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Measuring crosshead bearing and guide-shoe clearances", "cross_family": false } ] }, { "qid": "MUM-2025-09-2419-Q002", "text": "Thrust bearing clearance", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "", "tid": "MUM-2025-09-2419", "tray": "review", "candidates": [ { "answer_id": "THR-BRG-A-001", "score": 0.8360711336135864, "sibling_score": 0.8360711336135864, "answer_score": null, "sibling_qid": "KOC-2025-11-1969-Q004", "sibling_text": "thrust bearing clearance how to take", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you check, measure, limit and adjust main-engine thrust bearing clearance?", "cross_family": false }, { "answer_id": "RUN-CLR-001", "score": 0.5875927686691284, "sibling_score": null, "answer_score": 0.5875927686691284, "sibling_qid": "", "sibling_text": "running clearances taken from the crankcase after main engine decarbonisation bumping top clearance bottom end bearing clearance crosshead bearing clearance main bearing clearance both sides crosshead guide slipper clearance thrust clearance", "sibling_family": "", "via": "answer_title", "answer_title": "Running clearances taken from the crankcase after main-engine decarbonisation", "cross_family": false }, { "answer_id": "CXH-BRG-FINAL-1-006", "score": 0.5683285623788833, "sibling_score": null, "answer_score": 0.5683285623788833, "sibling_qid": "", "sibling_text": "crosshead guide shoe clearances how where how much piston position why clearances crosshead bearing clearance plus guide shoe clearance both sides running and thrust bearing clearance position is maker specified the aim is to put the running gear in the condition that opens the clearance at the measuring point for that design", "sibling_family": "", "via": "answer_title", "answer_title": "Crosshead & guide-shoe clearances: how, where, how much, piston position & why", "cross_family": false } ] }, { "qid": "MUM-2025-09-2421-Q004", "text": "stby blr water circulating pump running in reverse direction, reason, what to do?", "family": "Boilers - Operations & Firing", "subtopic": "Circulating Pump", "tid": "MUM-2025-09-2421", "tray": "review", "candidates": [ { "answer_id": "PAL-620-001", "score": 0.8560055494308472, "sibling_score": 0.8560055494308472, "answer_score": null, "sibling_qid": "MUM-2026-05-3218-Q004", "sibling_text": "stby blr water circulating pump running in reverse direction reason what to do", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "How do you check and set the alignment between a pump and its motor? Horizontal centrifugal pump — where the dial gauge goes and what values apply.", "cross_family": false }, { "answer_id": "REV-PROC-004", "score": 0.6023472547531128, "sibling_score": 0.6023472547531128, "answer_score": null, "sibling_qid": "KOL-2019-10-1492-Q011", "sibling_text": "how would you know by just seeing the fuel pump that engine has reversed", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Shifting and checking the fuel pump, fuel cam and follower", "cross_family": true }, { "answer_id": "VDP-003", "score": 0.5903500914573669, "sibling_score": 0.5903500914573669, "answer_score": null, "sibling_qid": "MUM-2024-02-2759-Q006", "sibling_text": "variable delivery pump how to reverse the direction", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Variable delivery pump in servo / hydraulic service — regulation and reversing", "cross_family": true } ] }, { "qid": "MUM-2025-09-2427-Q002", "text": "Sewage treatment plant survey only specific points for 1st and 2 chamber ( please don't limit for chamber was expectation other point like valve, blower?)", "family": "Steering Gear & Hydraulics", "subtopic": "Counter-Balance Valve", "tid": "MUM-2025-09-2427", "tray": "new", "candidates": [ { "answer_id": "STP-SEW-006", "score": 0.6330447196960449, "sibling_score": 0.6330447196960449, "answer_score": null, "sibling_qid": "CHE-2025-12-0099-Q013", "sibling_text": "sewage treatment plant routines as a second engg what checks you do", "sibling_family": "MARPOL - Annex IV (Sewage)", "via": "sibling", "answer_title": "Routine checks, maintenance and starting after overhaul", "cross_family": true }, { "answer_id": "STP-SEW-002", "score": 0.6088635921478271, "sibling_score": 0.6088635921478271, "answer_score": null, "sibling_qid": "CHE-2026-08-3891-Q008", "sibling_text": "sewage treatment plant parameters level", "sibling_family": "MARPOL - Annex IV (Sewage)", "via": "sibling", "answer_title": "Discharge criteria under Regulation 11", "cross_family": true }, { "answer_id": "STP-SEW-010", "score": 0.5906567573547363, "sibling_score": 0.5906567573547363, "answer_score": null, "sibling_qid": "KOL-2022-03-0607-Q002", "sibling_text": "sewage treatment plant diff types how they work how vaccum is loss", "sibling_family": "MARPOL - Annex IV (Sewage)", "via": "sibling", "answer_title": "The vacuum sewage system", "cross_family": true } ] }, { "qid": "MUM-2025-09-2428-Q006", "text": "Propeller fitment.How will insure correct postion and push up distance achieved.on what all factors push up distance occurs. 7. Tests on Rudder. Vaccum and hydraulic.", "family": "Steering Gear & Hydraulics", "subtopic": "Counter-Balance Valve", "tid": "MUM-2025-09-2428", "tray": "review", "candidates": [ { "answer_id": "PROP-PN-B-003", "score": 0.719281792640686, "sibling_score": 0.719281792640686, "answer_score": 0.48446898758411405, "sibling_qid": "MUM-2026-06-3604-Q001", "sibling_text": "how propeller fitted what is push up distance", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Push-up: how much, from where, and why not more or less", "cross_family": true }, { "answer_id": "PROP-PIL-A-002", "score": 0.6669939160346985, "sibling_score": 0.6669939160346985, "answer_score": null, "sibling_qid": "KOL-2023-07-3623-Q006", "sibling_text": "you havekeyless propeller and drydock team has fitted the propeller in front of you how you will ensure that it is correctly fitted what all you check how to determine pushup", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Bedding on the taper and fit verification", "cross_family": true }, { "answer_id": "SHAFT-CPP-004", "score": 0.6540572047233582, "sibling_score": 0.6540572047233582, "answer_score": 0.4833898961544037, "sibling_qid": "MUM-2022-12-1037-Q013", "sibling_text": "explain hydraulic method of fitting propeller where u get push up distance after fitting which valve you close first", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "4. Keyless propeller — hydraulic fitting, push-up, dry/wet fit", "cross_family": true } ] }, { "qid": "MUM-2025-09-2429-Q005", "text": "Crank pin bearing survey ?", "family": "Refrigeration & AC", "subtopic": "Compressor Construction / Belt Drive / Compressor Troubleshooting", "tid": "MUM-2025-09-2429", "tray": "review", "candidates": [ { "answer_id": "CRKPIN-P02-001", "score": 0.7856987714767456, "sibling_score": 0.7856987714767456, "answer_score": 0.5261621743440628, "sibling_qid": "MUM-2025-12-2517-Q001", "sibling_text": "crank pin bearing survey", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankpin (bottom-end) bearing — removal, overhaul and survey inspection", "cross_family": true }, { "answer_id": "CRPIN-CHK-P01-003", "score": 0.56811643242836, "sibling_score": null, "answer_score": 0.56811643242836, "sibling_qid": "", "sibling_text": "crankpin wear reduced diameter and surface defects assessment diameter by micrometer versus recorded original wear down compare to the maker s limit representative per manual visual scoring grooving ridging pitting corrosion and blueing overheating grade severity", "sibling_family": "", "via": "answer_title", "answer_title": "Crankpin wear, reduced diameter and surface defects — assessment", "cross_family": false }, { "answer_id": "AECR-651-005", "score": 0.5411287605762481, "sibling_score": null, "answer_score": 0.5411287605762481, "sibling_qid": "", "sibling_text": "what do you check on the crank pin bearing gudgeon pin and con rod during a decarb and a 4 stroke overhauled by a workshop what do you check as 2 e crank pin bearing shell condition running clearance wiping gudgeon pin small end bush clearance ovality scoring oil holes clear", "sibling_family": "", "via": "answer_title", "answer_title": "What do you check on the crank-pin bearing, gudgeon pin and con rod during a decarb — and a 4-stroke overhauled by a workshop, what do you check as 2/E?", "cross_family": false } ] }, { "qid": "MUM-2025-09-2831-Q003", "text": "line up Boiler water circ p/p", "family": "Boilers - Operations & Firing", "subtopic": "Circulating Pump", "tid": "MUM-2025-09-2831", "tray": "review", "candidates": [ { "answer_id": "PAL-620-001", "score": 0.6997150182723999, "sibling_score": 0.6997150182723999, "answer_score": null, "sibling_qid": "MUM-2025-11-2494-Q004", "sibling_text": "boiler water circulating pump aligning the system", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "How do you check and set the alignment between a pump and its motor? Horizontal centrifugal pump — where the dial gauge goes and what values apply.", "cross_family": true }, { "answer_id": "BWC-BF47-001", "score": 0.6698729395866394, "sibling_score": 0.6698729395866394, "answer_score": 0.4602151423692703, "sibling_qid": "KOL-2018-08-0209-Q004", "sibling_text": "water tube boiler water circulation", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Water circulation inside a boiler — natural circulation, and how forced circulation differs", "cross_family": false }, { "answer_id": "BCFS-003", "score": 0.6625219583511353, "sibling_score": 0.6625219583511353, "answer_score": 0.49914293885231015, "sibling_qid": "MUM-2024-12-2783-Q007", "sibling_text": "boiler water circulation pump lineup", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Open-feed and closed-feed systems, and checking boiler feed-water flow or circulation-pump line-up", "cross_family": true } ] }, { "qid": "MUM-2025-09-2831-Q004", "text": "Excessive vibration while starting of boiler action ?", "family": "Boilers - Operations & Firing", "subtopic": "Boiler firing/vibration/noise troubleshooting", "tid": "MUM-2025-09-2831", "tray": "review", "candidates": [ { "answer_id": "BFM-330-003", "score": 0.7788919806480408, "sibling_score": 0.7788919806480408, "answer_score": 0.5522287756204605, "sibling_qid": "MUM-2026-03-2937-Q011", "sibling_text": "boiler fired and giving vibration and noise why", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler vibration, backflow and furnace blowback during firing", "cross_family": false }, { "answer_id": "BLR-BSP-001", "score": 0.7383001446723938, "sibling_score": 0.7383001446723938, "answer_score": 0.5774706691503525, "sibling_qid": "MUM-2026-05-3196-Q004", "sibling_text": "3e tells you he started the boiler 2 times and both the times the boiler did not start and stopped with vibrations and loud sound may be it s because of panting what checks as 2e you will do", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler panting (combustion pulsation): causes, symptoms, and your actions as 2/E", "cross_family": false }, { "answer_id": "BFS-257-006", "score": 0.6793016791343689, "sibling_score": 0.6793016791343689, "answer_score": 0.5023185044527053, "sibling_qid": "MUM-2026-09-3997-Q008", "sibling_text": "boiler misfire reason action before restart", "sibling_family": "Boilers - 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Explain its purpose and requirements.", "cross_family": false }, { "answer_id": "CERT-LIST-P01-001", "score": 0.46822410821914673, "sibling_score": 0.46822410821914673, "answer_score": null, "sibling_qid": "KOL-2026-01-1159-Q006", "sibling_text": "csr and its forms", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "List the statutory certificates carried onboard a ship.", "cross_family": false }, { "answer_id": "HKC-IHM-B-001", "score": 0.37007591128349304, "sibling_score": 0.37007591128349304, "answer_score": null, "sibling_qid": "MUM-2025-12-0627-Q006", "sibling_text": "ihm lists", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is the IHM — its parts, categories and contents?", "cross_family": true } ] }, { "qid": "MUM-2025-09-2843-Q001", "text": "status of functions", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-09-2843", "tray": "new", "candidates": [ { "answer_id": "IMO-CODES-P03-002", "score": 0.5739258527755737, "sibling_score": 0.5739258527755737, "answer_score": null, "sibling_qid": "MUM-2026-03-0815-Q003", "sibling_text": "which function", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.5044617056846619, "sibling_score": 0.5044617056846619, "answer_score": null, "sibling_qid": "MUM-2026-03-1294-Q001", "sibling_text": "status of writtens and orals", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": false }, { "answer_id": "AVR-EXC-B-001", "score": 0.49591371417045593, "sibling_score": 0.49591371417045593, "answer_score": null, "sibling_qid": "KOC-2025-12-1676-Q004", "sibling_text": "explain status avr", "sibling_family": "Electrical - 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Safety & Survey", "via": "sibling", "answer_title": "Acceptance limits and durations — the accumulation limit, the maximum test periods, and the action if the limit is exceeded", "cross_family": false } ] }, { "qid": "MUM-2025-09-2848-Q015", "text": "Difference between high lift and improved high lift", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2025-09-2848", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.7612031102180481, "sibling_score": 0.7612031102180481, "answer_score": null, "sibling_qid": "KOL-2026-01-3900-Q004", "sibling_text": "diff between improved high lift and high lift", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-003", "score": 0.7481690049171448, "sibling_score": 0.7481690049171448, "answer_score": null, "sibling_qid": "MUM-2026-05-3246-Q016", "sibling_text": "difference between high lift and improved high lift", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "The accumulation test and the safety valve — required lift, how lift and capacity are verified, and why accumulation must stay inside the limit", "cross_family": false }, { "answer_id": "TURBO-CS-P02-007", "score": 0.33265183269977566, "sibling_score": null, "answer_score": 0.33265183269977566, "sibling_qid": "", "sibling_text": "turbocharger advancements higher single stage pressure ratio and efficiency from improved aerodynamics and materials supports high bmep low emission engines two stage turbocharging lp hp in series for very high boost enables miller cycle and nox reduction", "sibling_family": "", "via": "answer_title", "answer_title": "Turbocharger advancements", "cross_family": false } ] }, { "qid": "MUM-2025-09-2848-Q019", "text": "How will you charge oil in ref", "family": "Refrigeration & AC", "subtopic": "Refrigeration Lubricating Oil / Flock Point / Oil Charging", "tid": "MUM-2025-09-2848", "tray": "review", "candidates": [ { "answer_id": "REEF-COMP-004", "score": 0.7520096898078918, "sibling_score": 0.7520096898078918, "answer_score": 0.49047271609306337, "sibling_qid": "MUM-2026-05-3245-Q001", "sibling_text": "how will you charge oil in refer", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Charging, replenishing and draining compressor lube oil — including with no charging pump", "cross_family": false }, { "answer_id": "REEF-CHG-001", "score": 0.6358365416526794, "sibling_score": 0.6358365416526794, "answer_score": null, "sibling_qid": "KOL-2025-06-3784-Q004", "sibling_text": "4 how to charge gas in ref plant", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "01Charging or replenishing the refrigerant in a refrigeration / AC plant", "cross_family": false }, { "answer_id": "STAT-562-001", "score": 0.42443864345550536, "sibling_score": null, "answer_score": 0.42443864345550536, "sibling_qid": "", "sibling_text": "static electricity generation in tanker pipelines cargo tank safety generation is charge separation a low conductivity liquid flowing and separating against the pipe wall filters water droplets and rust charges the liquid entering the tank a streaming current static accumulator oil conductivity below 50 ps m representative isgott figure clean distillates kerosene jet gas oil naphtha gasoline accum", "sibling_family": "", "via": "answer_title", "answer_title": "Static electricity generation in tanker pipelines & cargo-tank safety", "cross_family": false } ] }, { "qid": "MUM-2025-09-2848-Q021", "text": "What is beta ratio", "family": "NDT & Material Testing", "subtopic": "Oil / Fuel Test", "tid": "MUM-2025-09-2848", "tray": "review", "candidates": [ { "answer_id": "LOF-359-001", "score": 0.7240110635757446, "sibling_score": 0.7240110635757446, "answer_score": 0.47690815329551695, "sibling_qid": "NOI-2026-09-0007-Q004", "sibling_text": "beta ratio", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Beta Ratio / Beta Efficiency", "cross_family": false }, { "answer_id": "CTRL-TL-004", "score": 0.3442621350288391, "sibling_score": null, "answer_score": 0.3442621350288391, "sibling_qid": "", "sibling_text": "ratio control and where it is used on board ratio control hold flow b as a fixed multiple of measured flow a wild flow measured but not controlled controlled flow manipulated to keep the ratio", "sibling_family": "", "via": "answer_title", "answer_title": "Ratio control and where it is used on board", "cross_family": false }, { "answer_id": "SB-RATIO-001", "score": 0.29620317518711087, "sibling_score": null, "answer_score": 0.29620317518711087, "sibling_qid": "", "sibling_text": "what is the stroke to bore ratio its significance its upper and lower values and the ratio of your own engine stroke bore both in the same units dimensionless quoted as a number or as x 1 links stroke and rated speed through mean piston speed c m 2 l n l stroke in m n rev s", "sibling_family": "", "via": "answer_title", "answer_title": "What is the stroke-to-bore ratio? Its significance, its upper and lower values, and the ratio of your own engine", "cross_family": false } ] }, { "qid": "MUM-2025-09-2848-Q023", "text": "What is FAME ?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Quality / CCAI", "tid": "MUM-2025-09-2848", "tray": "new", "candidates": [ { "answer_id": "BIO-FUEL-005", "score": 0.606098473072052, "sibling_score": 0.606098473072052, "answer_score": 0.2215397149324417, "sibling_qid": "MUM-2026-01-0674-Q008", "sibling_text": "what is fame", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Biofuel and FAME as marine fuel", "cross_family": false }, { "answer_id": "FQCC-583-A-004", "score": 0.6057724356651306, "sibling_score": 0.6057724356651306, "answer_score": 0.28899354338645933, "sibling_qid": "MUM-2026-06-3392-Q001", "sibling_text": "what is fame", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "FAME — what it is, why it is blended, and the limits", "cross_family": false }, { "answer_id": "EFBF-330-004", "score": 0.6055619120597839, "sibling_score": 0.6055619120597839, "answer_score": 0.29736763536930083, "sibling_qid": "MUM-2026-07-3684-Q003", "sibling_text": "what is fame", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "What is FAME?", "cross_family": false } ] }, { "qid": "MUM-2025-09-2848-Q024", "text": "What is heat affected zone.", "family": "Workshop & Welding", "subtopic": "Pre-heat / Post-heat", "tid": "MUM-2025-09-2848", "tray": "new", "candidates": [ { "answer_id": "WBS-C-003", "score": 0.49769866466522217, "sibling_score": 0.49769866466522217, "answer_score": null, "sibling_qid": "MUM-2017-01-2126-Q004", "sibling_text": "requirements and regulation governing dedicated hot work area", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Shipboard hot work — the permit, the designated area, and work near fuel tanks", "cross_family": false }, { "answer_id": "FLD-601-002", "score": 0.48439455032348633, "sibling_score": 0.48439455032348633, "answer_score": null, "sibling_qid": "MUM-2026-05-3085-Q007", "sibling_text": "what is flammability zone", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What is the flammable range and the flammability zone? What happens inside a cargo tank below 1% LEL?", "cross_family": true }, { "answer_id": "FSH-DET-004", "score": 0.45632708072662354, "sibling_score": 0.45632708072662354, "answer_score": 0.3428452923893928, "sibling_qid": "KOC-2024-05-0337-Q010", "sibling_text": "heat detector regulation", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Heat detector locations onboard, and why heat detectors in ECR, workshop and machinery spaces", "cross_family": true } ] }, { "qid": "MUM-2025-09-2848-Q025", "text": "What is e fuel?", "family": "Fuel Oil System", "subtopic": "Service / Settling Tank", "tid": "MUM-2025-09-2848", "tray": "review", "candidates": [ { "answer_id": "ALT-FUEL-007", "score": 0.7226307988166809, "sibling_score": 0.7226307988166809, "answer_score": 0.5386768281459808, "sibling_qid": "MUM-2026-06-3551-Q005", "sibling_text": "what is e fuel", "sibling_family": "Fuel Oil System", "via": "sibling", "answer_title": "What is e-fuel in the context of marine decarbonisation?", "cross_family": false }, { "answer_id": "EFBF-330-001", "score": 0.670752227306366, "sibling_score": 0.670752227306366, "answer_score": 0.5049217700958252, "sibling_qid": "MUM-2026-05-3260-Q003", "sibling_text": "what is e fuel", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What are biofuel and e-fuel?", "cross_family": true }, { "answer_id": "EFBF-330-002", "score": 0.5781850814819336, "sibling_score": 0.5781850814819336, "answer_score": 0.47702305912971493, "sibling_qid": "MUM-2024-11-0965-Q005", "sibling_text": "difference between synthetic fuel and e fuel", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Differentiate synthetic fuel and e-fuel", "cross_family": true } ] }, { "qid": "MUM-2025-09-3925-Q001", "text": "Radius of Gyration ?", "family": "SOLAS", "subtopic": "Static / Dynamic Stability", "tid": "MUM-2025-09-3925", "tray": "review", "candidates": [ { "answer_id": "BK-001", "score": 0.7239811420440674, "sibling_score": 0.7239811420440674, "answer_score": null, "sibling_qid": "KOC-2026-03-0878-Q015", "sibling_text": "raduis of gyration", "sibling_family": "", "via": "sibling", "answer_title": "What is a bilge keel and what is its purpose?", "cross_family": false }, { "answer_id": "BK-004", "score": 0.6811575889587402, "sibling_score": 0.6811575889587402, "answer_score": null, "sibling_qid": "KOC-2025-07-0633-Q019", "sibling_text": "how its connected radius of gyration", "sibling_family": "", "via": "sibling", "answer_title": "How is a bilge keel attached to the hull, and how is hull cracking or rupture controlled?", "cross_family": false }, { "answer_id": "BK-002", "score": 0.6119387745857239, "sibling_score": 0.6119387745857239, "answer_score": null, "sibling_qid": "KOC-2025-12-0760-Q003", "sibling_text": "radius of gyration time period of roll", "sibling_family": "", "via": "sibling", "answer_title": "How does a bilge keel reduce rolling, and how does it relate to roll period and radius of gyration?", "cross_family": false } ] }, { "qid": "MUM-2025-09-3925-Q002", "text": "Regulation for emergency fire pump ?", "family": "SOLAS - Fire Safety", "subtopic": "Emergency Fire Pump", "tid": "MUM-2025-09-3925", "tray": "review", "candidates": [ { "answer_id": "EFP-A-001", "score": 0.8272326588630676, "sibling_score": 0.8272326588630676, "answer_score": 0.5736276566982269, "sibling_qid": "KOL-2026-03-1207-Q001", "sibling_text": "emergency fire pump regulation", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "What does SOLAS / the FSS Code require of an emergency fire pump — location, capacity, suction, power and availability?", "cross_family": false }, { "answer_id": "IRT-A-015", "score": 0.5979779660701752, "sibling_score": null, "answer_score": 0.5979779660701752, "sibling_qid": "", "sibling_text": "emergency fire pump location and keeping its insulation up location solas ii 2 reg 10 the emergency fire pump its source of power sea inlet suction delivery pipes and isolating valves are outside the machinery space containing the main fire pumps the pump space is not contiguous to category a main pump spaces unless equivalent structural fire protection is accepted direct access from the machinery", "sibling_family": "", "via": "answer_title", "answer_title": "Emergency fire pump - location and keeping its insulation up", "cross_family": false }, { "answer_id": "FFF-A-003", "score": 0.5542780816555023, "sibling_score": null, "answer_score": 0.5542780816555023, "sibling_qid": "", "sibling_text": "fire main hydrants isolating and deck valves and fire line fittings fire main a dedicated salt water main supplying every hydrant solas ii 2 reg 10 2 fed by the required main fire pump s capacity by the reg 10 2 2 4 formula plus an independent emergency fire pump whose pump source of power and sea suction delivery arrangements stay available outside the main machinery space casualty only the regul", "sibling_family": "", "via": "answer_title", "answer_title": "Fire main, hydrants, isolating and deck valves, and fire-line fittings", "cross_family": false } ] }, { "qid": "MUM-2025-09-3925-Q003", "text": "Is there any regulation in SOLAS regarding emergency bilge suction ?", "family": "Pumps - Centrifugal & PD", "subtopic": "Bilge Line / Pump", "tid": "MUM-2025-09-3925", "tray": "review", "candidates": [ { "answer_id": "PCD-P04-02", "score": 0.7254114747047424, "sibling_score": 0.7254114747047424, "answer_score": 0.5663239926099777, "sibling_qid": "KOL-2026-09-4298-Q003", "sibling_text": "emergency bilge suction regulation", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "02. Emergency bilge suction — the bilge injection valve, testing and SOLAS requirements", "cross_family": false }, { "answer_id": "PPS-622-004", "score": 0.6362733244895935, "sibling_score": 0.6362733244895935, "answer_score": null, "sibling_qid": "KOL-2019-12-3302-Q002", "sibling_text": "bilge pump not taking suction plan to rectify", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "The bilge or ballast pump is not taking suction — reasons, how to identify the problem, how to rectify it. What does the suction gauge read, and what is suction head?", "cross_family": false }, { "answer_id": "SOLAS12-BC-E-003", "score": 0.473139414191246, "sibling_score": null, "answer_score": 0.473139414191246, "sibling_qid": "", "sibling_text": "dewatering system availability of pumping systems solas xii 13 instrument solas ch xii reg 13 availability of pumping systems applies toallbulk carriers regardless of build date interpretation msc 1 circ 1572 incorporating msc circ 1069 scope drain and pumpany ballast tank forward of the collision bulkheadand thebilges of dry spaces forward of the foremost cargo hold", "sibling_family": "", "via": "answer_title", "answer_title": "Dewatering system / availability of pumping systems — SOLAS XII/13", "cross_family": false } ] }, { "qid": "MUM-2025-09-3925-Q004", "text": "Pump room safety ?", "family": "Cargo Ops - Tankers", "subtopic": "Pump Room Safety", "tid": "MUM-2025-09-3925", "tray": "review", "candidates": [ { "answer_id": "PUMPRM-B-004", "score": 0.8087843060493469, "sibling_score": 0.8087843060493469, "answer_score": 0.536353987455368, "sibling_qid": "KOC-2022-03-0069-Q003", "sibling_text": "pump room safeties safeties on pump", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Safeties provided in a cargo pump room", "cross_family": false }, { "answer_id": "PUMPRM-B-001", "score": 0.5416915357112885, "sibling_score": null, "answer_score": 0.5416915357112885, "sibling_qid": "", "sibling_text": "entering the cargo pump room precautions and permit enclosed space and hazardous zone entry only under an enclosed space entry permit authorised never casual risk assessment and toolbox brief before anyone enters", "sibling_family": "", "via": "answer_title", "answer_title": "Entering the cargo pump room - precautions and permit", "cross_family": false }, { "answer_id": "PR-SAFE-A-004", "score": 0.538676118850708, "sibling_score": null, "answer_score": 0.538676118850708, "sibling_qid": "", "sibling_text": "pump room electrical safety lighting and portable equipment the cargo pump room is a zone 1 hazardous area iec 60092 502 an explosive atmosphere is likely in normal operation electrical equipment in the space is minimised fixed equipment must be certified for zone 1 flameproof ex d light fittings increased safety ex e intrinsically safe ex i and certified cable glands", "sibling_family": "", "via": "answer_title", "answer_title": "Pump-room electrical safety, lighting and portable equipment", "cross_family": false } ] }, { "qid": "MUM-2025-09-3925-Q005", "text": "Panting and Pounding ?", "family": "Boilers - Operations & Firing", "subtopic": "Black Smoke / Panting", "tid": "MUM-2025-09-3925", "tray": "review", "candidates": [ { "answer_id": "PPS-230-003", "score": 0.7913652062416077, "sibling_score": 0.7913652062416077, "answer_score": 0.33676057755947114, "sibling_qid": "KOC-2021-07-0014-Q013", "sibling_text": "panting pounding", "sibling_family": "", "via": "sibling", "answer_title": "Pounding and slamming: what they are, causes, and the ship motions", "cross_family": false }, { "answer_id": "PPS-230-004", "score": 0.7864254117012024, "sibling_score": 0.7864254117012024, "answer_score": null, "sibling_qid": "MUM-2026-02-0790-Q003", "sibling_text": "panting and pounding arrangement", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Forward strengthening to resist pounding / slamming", "cross_family": false }, { "answer_id": "PPS-230-005", "score": 0.7660192251205444, "sibling_score": 0.7660192251205444, "answer_score": null, "sibling_qid": "KOL-2021-01-0454-Q002", "sibling_text": "pounding panting", "sibling_family": "", "via": "sibling", "answer_title": "Panting and pounding arrangements: extent and alternative members", "cross_family": false } ] }, { "qid": "MUM-2025-09-3925-Q006", "text": "Margin line ?", "family": "Ship Construction & Stability", "subtopic": "Margin Line / Subdivision", "tid": "MUM-2025-09-3925", "tray": "review", "candidates": [ { "answer_id": "MARGIN-LINE-001", "score": 0.7948823571205139, "sibling_score": 0.7948823571205139, "answer_score": 0.41381284296512605, "sibling_qid": "CHE-2026-05-0547-Q003S3", "sibling_text": "margin line", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "What is the margin line, and what is its purpose?", "cross_family": false }, { "answer_id": "MARGIN-LINE-002", "score": 0.428896564245224, "sibling_score": null, "answer_score": 0.428896564245224, "sibling_qid": "", "sibling_text": "why is the margin line imaginary and not permanently marked it is adesign calculation referenceused in subdivision and damage stability work not an operational limit the crew operate to themarkedlines deck line plimsoll load line marks draught marks intact loading", "sibling_family": "", "via": "answer_title", "answer_title": "Why is the margin line imaginary, and not permanently marked?", "cross_family": false }, { "answer_id": "MARGIN-LINE-006", "score": 0.41594713777303693, "sibling_score": null, "answer_score": 0.41594713777303693, "sibling_qid": "", "sibling_text": "handling ambiguous or compound prompts margin line bare prompts imaginary line marpol line a mishearing of margin line almost always mean the margin line declarethe reading answer andoffer to redirect core fact to deliver 76 mm below the bulkhead deck at side damaged condition limit waterline unmarked calculation line", "sibling_family": "", "via": "answer_title", "answer_title": "Handling ambiguous or compound prompts (margin line)", "cross_family": false } ] }, { "qid": "MUM-2025-09-3925-Q007", "text": "SOLAS chapter 12 ?", "family": "SOLAS - General (HOLD)", "subtopic": "Solas Chapter 12 - Bulk", "tid": "MUM-2025-09-3925", "tray": "review", "candidates": [ { "answer_id": "SOLAS-XII-BC-002", "score": 0.6775514483451843, "sibling_score": 0.6775514483451843, "answer_score": null, "sibling_qid": "MUM-2022-10-0053-Q002", "sibling_text": "solas chapter 12 complete", "sibling_family": "SOLAS - General (HOLD)", "via": "sibling", "answer_title": "Explain SOLAS Chapter XII — the additional safety measures for bulk carriers", "cross_family": false }, { "answer_id": "ESE-P01-003", "score": 0.6579492688179016, "sibling_score": 0.6579492688179016, "answer_score": null, "sibling_qid": "MUM-2022-07-0028-Q001S3", "sibling_text": "solas chapter 12", "sibling_family": "SOLAS - General (HOLD)", "via": "sibling", "answer_title": "General enclosed-space entry procedure as second engineer", "cross_family": false }, { "answer_id": "WIDAS-SMK-005", "score": 0.3463281601667404, "sibling_score": null, "answer_score": 0.3463281601667404, "sibling_qid": "", "sibling_text": "regulation solas chapter xii references and exemptions", "sibling_family": "", "via": "answer_title", "answer_title": "Regulation, SOLAS Chapter XII references and exemptions", "cross_family": false } ] }, { "qid": "MUM-2025-09-3925-Q008", "text": "Measures to enhance maritime security ?", "family": "ISPS", "subtopic": "ISPS Code / Security Level", "tid": "MUM-2025-09-3925", "tray": "review", "candidates": [ { "answer_id": "ISPS-SSP-P01-001", "score": 0.6561192274093628, "sibling_score": 0.6561192274093628, "answer_score": null, "sibling_qid": "KOC-2023-02-0148-Q006", "sibling_text": "ship security plan", "sibling_family": "ISPS", "via": "sibling", "answer_title": "Ship Security Plan (SSP): purpose, scope & contents", "cross_family": false }, { "answer_id": "ISPS-SSP-P02-002", "score": 0.635641872882843, "sibling_score": 0.635641872882843, "answer_score": null, "sibling_qid": "KOC-2023-08-0216-Q008", "sibling_text": "4 steps for preparing ship security plan", "sibling_family": "ISPS", "via": "sibling", "answer_title": "SSP — who prepares it, approval, and who has access", "cross_family": false }, { "answer_id": "ISPS-SSP-P04-001", "score": 0.6314964294433594, "sibling_score": 0.6314964294433594, "answer_score": null, "sibling_qid": "MUM-2024-02-2755-Q002", "sibling_text": "ship security alert system", "sibling_family": "ISPS", "via": "sibling", "answer_title": "Ship Security Alert System (SSAS): explanation, activation, location and testing", "cross_family": false } ] }, { "qid": "MUM-2025-09-3925-Q009", "text": "Condition of assessment ?", "family": "Surveys - Statutory", "subtopic": "ESP / Enhanced Survey", "tid": "MUM-2025-09-3925", "tray": "review", "candidates": [ { "answer_id": "LLC-SUR-POA-3-FINAL-001", "score": 0.7816668748855591, "sibling_score": 0.7816668748855591, "answer_score": null, "sibling_qid": "KOC-2023-05-0190-Q007", "sibling_text": "condition of assesment", "sibling_family": "", "via": "sibling", "answer_title": "Conditions of assignment of freeboard", "cross_family": false }, { "answer_id": "COC-002", "score": 0.7709854245185852, "sibling_score": 0.7709854245185852, "answer_score": 0.3909705966711044, "sibling_qid": "KOL-2026-02-1180-Q002", "sibling_text": "condition of assessment and conditions of class", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the difference between a Condition of Class and a Condition of Assignment?", "cross_family": false }, { "answer_id": "COC-001", "score": 0.6327328681945801, "sibling_score": 0.6327328681945801, "answer_score": 0.3850977078080177, "sibling_qid": "KOC-2026-04-0899-Q005", "sibling_text": "condition of class", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is a Condition of Class? Give examples, say where it is found, how much time is given to rectify it, and what happens if it is not met in time.", "cross_family": false } ] }, { "qid": "MUM-2025-09-3925-Q010", "text": "Intact stability ?", "family": "Ship Construction & Stability", "subtopic": "Static / Dynamic Stability/damage stability", "tid": "MUM-2025-09-3925", "tray": "review", "candidates": [ { "answer_id": "STAB-SD-A-001", "score": 0.8645343780517578, "sibling_score": 0.8645343780517578, "answer_score": null, "sibling_qid": "CHE-2026-05-0626-Q017", "sibling_text": "intact stability", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Intact stability and the 2008 IS Code criteria", "cross_family": false }, { "answer_id": "STAB-GZ-P01-001", "score": 0.814561128616333, "sibling_score": 0.814561128616333, "answer_score": null, "sibling_qid": "KOC-2024-05-2047-Q002", "sibling_text": "intact stability", "sibling_family": "", "via": "sibling", "answer_title": "Draw and explain the statical stability (GZ) curve", "cross_family": false }, { "answer_id": "SCS-DEF-001", "score": 0.47973307371139523, "sibling_score": null, "answer_score": 0.47973307371139523, "sibling_qid": "", "sibling_text": "1 what is intact stability stability of theundamaged watertightship the opposite case to damage stability which assumes flooding ability to return to the initial equilibrium upright after a heeling force is removed", "sibling_family": "", "via": "answer_title", "answer_title": "1. What is intact stability?", "cross_family": false } ] }, { "qid": "MUM-2025-09-3925-Q011", "text": "Dynamic stability ?", "family": "Ship Construction & Naval Architecture", "subtopic": "", "tid": "MUM-2025-09-3925", "tray": "review", "candidates": [ { "answer_id": "STAB-D-001", "score": 0.8150647282600403, "sibling_score": 0.8150647282600403, "answer_score": null, "sibling_qid": "MUM-2026-06-3644-Q003", "sibling_text": "dynamic stability", "sibling_family": "Ship Construction & Naval Architecture", "via": "sibling", "answer_title": "General Ship Stability - How I Open Any Stability Question", "cross_family": false }, { "answer_id": "STAB-B-001", "score": 0.8149970173835754, "sibling_score": 0.8149970173835754, "answer_score": 0.4898631781339645, "sibling_qid": "CHE-2026-05-0560-Q007", "sibling_text": "dynamic stability", "sibling_family": "Ship Construction & Naval Architecture", "via": "sibling", "answer_title": "Dynamic stability — definition, physical meaning, and the IS Code criteria", "cross_family": false }, { "answer_id": "STAB-SD-C-001", "score": 0.7755316495895386, "sibling_score": 0.7755316495895386, "answer_score": 0.5714422166347504, "sibling_qid": "MUM-2026-01-0717-Q005", "sibling_text": "static dymanic stability", "sibling_family": "", "via": "sibling", "answer_title": "Static stability vs dynamic stability — and how each is measured", "cross_family": false } ] }, { "qid": "MUM-2025-09-3925-Q012", "text": "As a 2nd engineer, your actions if someone has entered enclosed space and stopped responding ?", "family": "2-Stroke - Operations & Casualty", "subtopic": "Casualty / Emergency Stop", "tid": "MUM-2025-09-3925", "tray": "review", "candidates": [ { "answer_id": "ESE-P01-003", "score": 0.7615103721618652, "sibling_score": 0.7615103721618652, "answer_score": 0.5250003486871719, "sibling_qid": "MUM-2026-06-3655-Q003", "sibling_text": "person made entry in a enclosed space is not responding how will you react as 2nd engineer as a stand by person", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "General enclosed-space entry procedure as second engineer", "cross_family": true }, { "answer_id": "ESE-P02-008", "score": 0.6673572063446045, "sibling_score": 0.6673572063446045, "answer_score": 0.49105165302753445, "sibling_qid": "MUM-2026-09-3910-Q005", "sibling_text": "enclosed space entry checks and what you will do in case of no response from inside crew", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "ESE-P02-08. Before, during and after: confirming a space is safe to enter", "cross_family": true }, { "answer_id": "CAS-ESTOP-007", "score": 0.6306090950965881, "sibling_score": 0.6306090950965881, "answer_score": null, "sibling_qid": "MUM-2024-01-2219-Q001", "sibling_text": "immediate first actions as 2nd engineer", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Major machinery casualty — first actions and taking the ship to a safe port", "cross_family": false } ] }, { "qid": "MUM-2025-09-3925-Q013", "text": "Crawling and cogging ?", "family": "Electrical - Motors & Starters", "subtopic": "Induction Motor (General / Working)", "tid": "MUM-2025-09-3925", "tray": "review", "candidates": [ { "answer_id": "IM-GW-C-001", "score": 0.719151496887207, "sibling_score": 0.719151496887207, "answer_score": 0.2706743210554123, "sibling_qid": "KOC-2022-08-1190-Q007", "sibling_text": "crawling and cogging", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Cogging, crawling and harmonic effects in induction motors", "cross_family": false }, { "answer_id": "IM-TSS-P01-001", "score": 0.2716508686542511, "sibling_score": null, "answer_score": 0.2716508686542511, "sibling_qid": "", "sibling_text": "skew and cogging skew rotor bars angled relative to the shaft axis by roughly one slot pitch purpose prevent cogging magnetic locking teeth alignment at start reduce crawling locking at a low harmonic speed and cut noise and torque ripple", "sibling_family": "", "via": "answer_title", "answer_title": "Skew and cogging", "cross_family": false }, { "answer_id": "ROTSTAT-C-001", "score": 0.2617449015378952, "sibling_score": null, "answer_score": 0.2617449015378952, "sibling_qid": "", "sibling_text": "rotor skewing cogging crawling harmonics skew rotor bars set at an angle to the shaft roughly one stator slot pitch representative figure design set three purposes smooth quiet torque less noise vibration suppress slot harmonics", "sibling_family": "", "via": "answer_title", "answer_title": "Rotor skewing, cogging, crawling & harmonics", "cross_family": false } ] }, { "qid": "MUM-2025-09-3925-Q014", "text": "What is back EMF ?", "family": "Electrical - Motors & Starters", "subtopic": "Starting Current", "tid": "MUM-2025-09-3925", "tray": "review", "candidates": [ { "answer_id": "DCMOT-A-003", "score": 0.6614323258399963, "sibling_score": 0.6614323258399963, "answer_score": 0.4671675533056259, "sibling_qid": "KOL-2022-01-2533-Q001", "sibling_text": "back emf", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Back EMF in a DC motor", "cross_family": false }, { "answer_id": "FAR-EMI-001", "score": 0.5407724380493164, "sibling_score": 0.5407724380493164, "answer_score": null, "sibling_qid": "MUM-2025-08-1573-Q002", "sibling_text": "back emf and what law talks about it", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Faraday's laws of electromagnetic induction and Lenz's law — and their shipboard use", "cross_family": true }, { "answer_id": "DCMOT-A-002", "score": 0.3817998647689819, "sibling_score": null, "answer_score": 0.3817998647689819, "sibling_qid": "", "sibling_text": "working principle fleming s rule and testing force on a current carrying conductor in a field f b i l direction by fleming sleft hand rule motor the right hand rule is the generator rule and gives the back emf direction commutator brushes reverse each armature coil s current as the coil passes the brush neutral zone in the elementary two pole picture twice per revolution unidirectional torque with", "sibling_family": "", "via": "answer_title", "answer_title": "Working principle, Fleming's rule and testing", "cross_family": false } ] }, { "qid": "MUM-2025-09-3925-Q015", "text": "What will happen if one diode is open circuit ?", "family": "Electrical - Generator & Alternator", "subtopic": "Diode Short / Open", "tid": "MUM-2025-09-3925", "tray": "review", "candidates": [ { "answer_id": "DIODESO-001", "score": 0.6931522488594055, "sibling_score": 0.6931522488594055, "answer_score": 0.36072386503219606, "sibling_qid": "MUM-2026-05-3004-Q003S2", "sibling_text": "diode open what will happen", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Two alternators in parallel — one rotating rectifier diode goes short circuit. What happens, what if it goes open instead, and how do you know which it is?", "cross_family": false }, { "answer_id": "GMCM-583-A-005", "score": 0.3996022894978523, "sibling_score": null, "answer_score": 0.3996022894978523, "sibling_qid": "", "sibling_text": "05 open circuits continuity and checking a fuse with a multimeter open circuit broken path no current continuity reads o l a healthy path reads near zero and buzzes ohms continuity and diode ranges dead isolated proven dead circuits only", "sibling_family": "", "via": "answer_title", "answer_title": "05. Open circuits, continuity and checking a fuse with a multimeter", "cross_family": false }, { "answer_id": "TC-A-004", "score": 0.3870194673538208, "sibling_score": null, "answer_score": 0.3870194673538208, "sibling_qid": "", "sibling_text": "testing a transistor and testing it other than in diode mode isolate discharge lift a leg before any reading diode mode healthy pattern b e forward one way only b c forward one way only c e open both ways", "sibling_family": "", "via": "answer_title", "answer_title": "Testing a transistor — and testing it other than in diode mode", "cross_family": false } ] }, { "qid": "MUM-2025-09-3925-Q016", "text": "Magneto hysteresis ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Eddy Current Losses", "tid": "MUM-2025-09-3925", "tray": "review", "candidates": [ { "answer_id": "XFMR-THY-C-001", "score": 0.6715791821479797, "sibling_score": 0.6715791821479797, "answer_score": 0.47560487389564515, "sibling_qid": "MUM-2026-06-3595-Q005", "sibling_text": "hysteresis loss", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Hysteresis loss in a transformer — cause, the factors it depends on, and how to cut it", "cross_family": false }, { "answer_id": "RES-MAG-001", "score": 0.5706817507743835, "sibling_score": 0.5706817507743835, "answer_score": 0.3893210798501968, "sibling_qid": "MUM-2026-06-3632-Q004", "sibling_text": "function of residual magnetism", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Residual magnetism — what it is, where it is stored, how it is lost and how you restore it", "cross_family": true }, { "answer_id": "XFMR-THY-E-001", "score": 0.45107445418834685, "sibling_score": null, "answer_score": 0.45107445418834685, "sibling_qid": "", "sibling_text": "core iron loss and eddy current loss iron loss hysteresis loss eddy current loss it occurs in the core and is present whenever the transformer is energised hysteresis loss is proportional to frequency and to flux density to about the power 1 6 the steinmetz exponent up to roughly 2 for some grain oriented steels at high flux reduced by good magnetic material silicon steel grain oriented low hyster", "sibling_family": "", "via": "answer_title", "answer_title": "Core / iron loss and eddy-current loss", "cross_family": false } ] }, { "qid": "MUM-2025-10-0487-Q001", "text": "How to prepare ship for safety survey", "family": "Surveys - Statutory", "subtopic": "Audit", "tid": "MUM-2025-10-0487", "tray": "review", "candidates": [ { "answer_id": "SEQ-330-002", "score": 0.7869887948036194, "sibling_score": 0.7869887948036194, "answer_score": 0.5509924232959748, "sibling_qid": "MUM-2025-07-0354-Q002", "sibling_text": "how to prepare ship for safety survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Preparing the ship for the Safety Equipment survey as Second Engineer", "cross_family": false }, { "answer_id": "LLC-SURV-P01-001", "score": 0.6928331255912781, "sibling_score": 0.6928331255912781, "answer_score": 0.5508204698562622, "sibling_qid": "MUM-2026-09-3960-Q005", "sibling_text": "preparation of safcon and load line survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Load line survey preparation as Second Engineer: engine-room scope, machinery openings, tanks/vents, valves and overboard checks", "cross_family": false }, { "answer_id": "ESP-B-001", "score": 0.6696611046791077, "sibling_score": 0.6696611046791077, "answer_score": null, "sibling_qid": "KOL-2022-11-0703-Q003", "sibling_text": "enhanced survey program why to do when to do on which type of ship and what to check in this survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "How an ESP survey is carried out — conduct, engine-room preparation & 2/E duties", "cross_family": false } ] }, { "qid": "MUM-2025-10-0487-Q003", "text": "Checks and alarm carried out before cargo operation", "family": "Cargo Ops - Bulk Carriers", "subtopic": "IMSBC / Grain / BLU Code", "tid": "MUM-2025-10-0487", "tray": "review", "candidates": [ { "answer_id": "CPS-316-002", "score": 0.8451547026634216, "sibling_score": 0.8451547026634216, "answer_score": 0.5505043268203735, "sibling_qid": "MUM-2025-07-0354-Q004", "sibling_text": "checks and alarm carried out before cargo operation", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "2/E checks and preparation before cargo discharge / cargo operations", "cross_family": true }, { "answer_id": "IGAT-583-001", "score": 0.7531756162643433, "sibling_score": 0.7531756162643433, "answer_score": null, "sibling_qid": "MUM-2025-11-0555-Q002", "sibling_text": "before discharging ig alarm and cargo checks", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "State all the alarms, trips and safety cut-outs provided on a tanker inert gas (IG) system.", "cross_family": true }, { "answer_id": "COT-P03-05", "score": 0.7224600315093994, "sibling_score": 0.7224600315093994, "answer_score": 0.5844825088977813, "sibling_qid": "MUM-2026-07-3756-Q003", "sibling_text": "what all alarms to be tested before cargo discharging", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Alarms, trips and interlocks of the IG and cargo-pumping systems tested before discharge — and how, safely", "cross_family": true } ] }, { "qid": "MUM-2025-10-0490-Q001", "text": "Type of ships u hv sailed", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-10-0490", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.7792914509773254, "sibling_score": 0.7792914509773254, "answer_score": null, "sibling_qid": "CHE-2026-09-3938-Q001", "sibling_text": "types of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.760796844959259, "sibling_score": 0.760796844959259, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7480364441871643, "sibling_score": 0.7480364441871643, "answer_score": 0.4875805139541626, "sibling_qid": "KOC-2026-09-2198-Q001", "sibling_text": "type a and b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "MUM-2025-10-0490-Q006", "text": "What is CIS?", "family": "MARPOL - General & Compliance", "subtopic": "Annex Overview", "tid": "MUM-2025-10-0490", "tray": "new", "candidates": [ { "answer_id": "PSC-SURV-P01-002", "score": 0.4667830169200897, "sibling_score": 0.4667830169200897, "answer_score": 0.2703992664813995, "sibling_qid": "KOL-2022-08-0664-Q003", "sibling_text": "what is cic", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is a Concentrated Inspection Campaign (CIC) under PSC?", "cross_family": true }, { "answer_id": "CII-P01-001", "score": 0.4437218904495239, "sibling_score": 0.4437218904495239, "answer_score": 0.26413963437080384, "sibling_qid": "KOL-2025-07-0978-Q009", "sibling_text": "what is cii", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is CII and what is its purpose?", "cross_family": true }, { "answer_id": "CSR-585-001", "score": 0.24534353762865066, "sibling_score": null, "answer_score": 0.24534353762865066, "sibling_qid": "", "sibling_text": "what is the continuous synopsis record csr explain its purpose and requirements requirement solas chapter xi 1 regulation 5 introduced by the 2002 solas conference alongside the isps code in force 1 july 2004 format and working guidelines imo assembly resolution a 959 23 as amended by msc 198 80 application every ship to which solas chapter i applies passenger ships of any tonnage and cargo ships ", "sibling_family": "", "via": "answer_title", "answer_title": "What is the Continuous Synopsis Record (CSR)? Explain its purpose and requirements.", "cross_family": false } ] }, { "qid": "MUM-2025-10-0490-Q007", "text": "What is MOU and its purpose?", "family": "Surveys - Statutory", "subtopic": "MOU", "tid": "MUM-2025-10-0490", "tray": "review", "candidates": [ { "answer_id": "PSC-RO-P02-004", "score": 0.6799529194831848, "sibling_score": 0.6799529194831848, "answer_score": 0.3777535378932953, "sibling_qid": "NOI-2026-09-0010-Q005", "sibling_text": "mou purpose", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What are PSC MoUs, and what are the major regional MoUs?", "cross_family": false }, { "answer_id": "PSC-SURV-P01-001", "score": 0.589541494846344, "sibling_score": 0.589541494846344, "answer_score": 0.3262673392891884, "sibling_qid": "KOC-2025-12-0763-Q006", "sibling_text": "psc what is the purpose and what u understand by mou what s it function", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is a PSC MoU, and why is regional cooperation between port States required?", "cross_family": false }, { "answer_id": "PSC-SURV-P01-002", "score": 0.4961884617805481, "sibling_score": 0.4961884617805481, "answer_score": null, "sibling_qid": "KOL-2025-10-1100-Q004", "sibling_text": "what is psc what is cic what do you understand by mou and its significance", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is a Concentrated Inspection Campaign (CIC) under PSC?", "cross_family": false } ] }, { "qid": "MUM-2025-10-0490-Q011", "text": "Life boat dynamic testing.", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Lifeboat Static / Dynamic Test", "tid": "MUM-2025-10-0490", "tray": "review", "candidates": [ { "answer_id": "LB-SDT-A-001", "score": 0.8015011548995972, "sibling_score": 0.8015011548995972, "answer_score": 0.5318618178367615, "sibling_qid": "KOC-2022-01-0045-Q009", "sibling_text": "lifeboat static and dynamic test int", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat static and dynamic test — purpose and procedure", "cross_family": false }, { "answer_id": "LBT-TEST-B-004", "score": 0.771290123462677, "sibling_score": 0.771290123462677, "answer_score": null, "sibling_qid": "KOL-2019-08-0312-Q005", "sibling_text": "lifeboat testing static nd dynamic", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Tests carried out on the lifeboat/davit onboard (overview)", "cross_family": false }, { "answer_id": "LB-DAVIT-HRU-007", "score": 0.4933599531650543, "sibling_score": null, "answer_score": 0.4933599531650543, "sibling_qid": "", "sibling_text": "lifeboat static and dynamic load test static structure test launching appliance and attachments other than winch brakes factory static proof load 2 2 times mwl lsa 6 1 1 5 winch brake static test proof load 1 5 times mwl lsa 6 1 2 5", "sibling_family": "", "via": "answer_title", "answer_title": "Lifeboat static and dynamic load test", "cross_family": false } ] }, { "qid": "MUM-2025-10-0492-Q004", "text": "How to reduce rolling?", "family": "", "subtopic": "Static / Dynamic Stability", "tid": "MUM-2025-10-0492", "tray": "review", "candidates": [ { "answer_id": "BK-001", "score": 0.6625553369522095, "sibling_score": 0.6625553369522095, "answer_score": null, "sibling_qid": "KOC-2025-07-0633-Q017", "sibling_text": "how its reducing rolling", "sibling_family": "", "via": "sibling", "answer_title": "What is a bilge keel and what is its purpose?", "cross_family": false }, { "answer_id": "BK-002", "score": 0.5770577192306519, "sibling_score": 0.5770577192306519, "answer_score": 0.35283959209918975, "sibling_qid": "KOC-2022-10-0107-Q006", "sibling_text": "how it reduces rolling explain with time period of rolling equation", "sibling_family": "", "via": "sibling", "answer_title": "How does a bilge keel reduce rolling, and how does it relate to roll period and radius of gyration?", "cross_family": false }, { "answer_id": "PAR-ROLL-005", "score": 0.5576047897338867, "sibling_score": 0.5576047897338867, "answer_score": null, "sibling_qid": "KOL-2020-03-0405-Q002", "sibling_text": "parametric rolling and measures to reduce same", "sibling_family": "", "via": "sibling", "answer_title": "05. 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Explain all nine", "cross_family": false }, { "answer_id": "IMO-CODES-P03-001", "score": 0.3299902781844139, "sibling_score": null, "answer_score": 0.3299902781844139, "sibling_qid": "", "sibling_text": "important imo conventions and codes parent links", "sibling_family": "", "via": "answer_title", "answer_title": "Important IMO conventions and codes: parent links", "cross_family": false } ] }, { "qid": "MUM-2025-10-0503-Q001", "text": "type of vessel sailed", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-10-0503", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8419397473335266, "sibling_score": 0.8419397473335266, "answer_score": null, "sibling_qid": "CHE-2026-02-0481-Q001", "sibling_text": "type of vessels sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8254468441009521, "sibling_score": 0.8254468441009521, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.8040151000022888, "sibling_score": 0.8040151000022888, "answer_score": null, "sibling_qid": "CHE-2026-03-0255-Q001", "sibling_text": "type of vessel and engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "MUM-2025-10-0503-Q010", "text": "fore peak construction explain", "family": "", "subtopic": "Peak Tank Construction", "tid": "MUM-2025-10-0503", "tray": "review", "candidates": [ { "answer_id": "BSBH-420-002", "score": 0.6591048240661621, "sibling_score": 0.6591048240661621, "answer_score": 0.43438980281352996, "sibling_qid": "MUM-2026-06-3359-Q004", "sibling_text": "forepeak construction", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Fore-end / forepeak construction forward of the collision bulkhead — members and cross-section", "cross_family": false }, { "answer_id": "BSBH-420-001", "score": 0.6009456515312195, "sibling_score": 0.6009456515312195, "answer_score": 0.34461685866117475, "sibling_qid": "MUM-2025-11-0583-Q002", "sibling_text": "fore peak construction and cross question", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "What is a breast hook, where is it fitted, and what does it connect at the fore end?", "cross_family": false }, { "answer_id": "PPS-230-006", "score": 0.544166088104248, "sibling_score": 0.544166088104248, "answer_score": 0.35240687131881715, "sibling_qid": "KOL-2025-09-1065-Q005", "sibling_text": "fore peak tank construction panting pounding arrangement", "sibling_family": "", "via": "sibling", "answer_title": "Fore-end / fore-peak structure: draw and describe", "cross_family": false } ] }, { "qid": "MUM-2025-10-0505-Q001", "text": "Asked about status of other exams and number of attempts", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-10-0505", "tray": "new", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.5928305983543396, "sibling_score": 0.5928305983543396, "answer_score": null, "sibling_qid": "MUM-2026-01-1252-Q001", "sibling_text": "status of results oral written exam", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": false }, { "answer_id": "NDT-METH-P01-001", "score": 0.5118833780288696, "sibling_score": 0.5118833780288696, "answer_score": null, "sibling_qid": "MUM-2026-03-2946-Q006", "sibling_text": "the best thing you can do is figure out which exams you can appear for whether single subjects pairs or all together it depends on your will and capability for me i appeared in pairs 2 writtens and 1 oral because i knew my capability it differs for everyone many attempt all 6 together as per my knowledge few pass all 6 some pass 4 5 some pass 1 3 and some failed all", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "NDT methods, NDT vs destructive testing, and onboard use", "cross_family": false }, { "answer_id": "DUS-P1-02", "score": 0.5110008716583252, "sibling_score": 0.5110008716583252, "answer_score": null, "sibling_qid": "KOL-2025-08-3851-Q006", "sibling_text": "drydock plans rudder checks cross questions what about other written oral exams status told waiting for naval written result to come all other paper cleared", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Plans, drawings and special tools kept ready for drydock — engine-department view", "cross_family": true } ] }, { "qid": "MUM-2025-10-0506-Q001", "text": "Type of ship sailed", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-10-0506", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8459994792938232, "sibling_score": 0.8459994792938232, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8450109958648682, "sibling_score": 0.8450109958648682, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.793106198310852, "sibling_score": 0.793106198310852, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "MUM-2025-10-0507-Q001", "text": "Iso full form and working", "family": "MARPOL - General & Compliance", "subtopic": "Latest Fuels", "tid": "MUM-2025-10-0507", "tray": "new", "candidates": [ { "answer_id": "WIDAS-SMK-007", "score": 0.4801538586616516, "sibling_score": 0.4801538586616516, "answer_score": null, "sibling_qid": "MUM-2026-03-0855-Q003", "sibling_text": "diff between iso ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Smoke sampling line — testing, confirming clear, and what is in the tube", "cross_family": true }, { "answer_id": "FQCC-583-A-002", "score": 0.4607832431793213, "sibling_score": 0.4607832431793213, "answer_score": 0.30388684421777723, "sibling_qid": "MUM-2026-06-3553-Q007", "sibling_text": "name of new iso standards", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "ISO 8217 — the standard, and what changed from 2017 to 2024", "cross_family": true }, { "answer_id": "ISM-ELEM-002", "score": 0.44237279891967773, "sibling_score": 0.44237279891967773, "answer_score": 0.3107612073421478, "sibling_qid": "MUM-2026-02-0790-Q002", "sibling_text": "ism full details", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the ISM Code?", "cross_family": true } ] }, { "qid": "MUM-2025-10-0508-Q001", "text": "Status of other functions", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-10-0508", "tray": "new", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.5764543414115906, "sibling_score": 0.5764543414115906, "answer_score": null, "sibling_qid": "MUM-2026-05-3187-Q001", "sibling_text": "status of other orals and written", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": false }, { "answer_id": "IMO-CODES-P03-002", "score": 0.5637672543525696, "sibling_score": 0.5637672543525696, "answer_score": null, "sibling_qid": "MUM-2026-03-0815-Q003", "sibling_text": "which function", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": false }, { "answer_id": "AVR-EXC-B-001", "score": 0.5095140933990479, "sibling_score": 0.5095140933990479, "answer_score": null, "sibling_qid": "KOC-2025-12-1676-Q004", "sibling_text": "explain status avr", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Explain the AVR working principle and control-loop operation.", "cross_family": true } ] }, { "qid": "MUM-2025-10-0508-Q002", "text": "Type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-10-0508", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8367661833763123, "sibling_score": 0.8367661833763123, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8020406365394592, "sibling_score": 0.8020406365394592, "answer_score": 0.5474629700183868, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8004519939422607, "sibling_score": 0.8004519939422607, "answer_score": 0.5221094131469727, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2025-10-0509-Q001", "text": ",IBC code,bch code and their differences. 2.Eexi full", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "EEXI", "tid": "MUM-2025-10-0509", "tray": "review", "candidates": [ { "answer_id": "IBC-BCH-B-001", "score": 0.707709550857544, "sibling_score": 0.707709550857544, "answer_score": 0.433993661403656, "sibling_qid": "MUM-2023-08-0122-Q007", "sibling_text": "ibc code bch code difference", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Difference between the IBC Code and the BCH Code", "cross_family": true }, { "answer_id": "BCH-IBC-A-002", "score": 0.6187126636505127, "sibling_score": 0.6187126636505127, "answer_score": null, "sibling_qid": "MUM-2026-09-3983-Q010", "sibling_text": "ibc and bc code", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "The IBC Code — scope, purpose and application", "cross_family": true }, { "answer_id": "IGC-IGF-001", "score": 0.326245579123497, "sibling_score": null, "answer_score": 0.326245579123497, "sibling_qid": "", "sibling_text": "igc code vs igf code what they are and the difference igc carriage of liquefied gases in bulk as cargo mandatory under solas ch vii part c igf ships using gases low flashpoint fuels as fuel mandatory under solas ch ii 1 part g", "sibling_family": "", "via": "answer_title", "answer_title": "IGC Code vs IGF Code — what they are and the difference", "cross_family": false } ] }, { "qid": "MUM-2025-10-0509-Q003", "text": "Differences between them", "family": "", "subtopic": "", "tid": "MUM-2025-10-0509", "tray": "review", "candidates": [ { "answer_id": "OWS-15PPM-006", "score": 0.8057041168212891, "sibling_score": 0.8057041168212891, "answer_score": null, "sibling_qid": "MUM-2026-02-0730-Q004", "sibling_text": "differences between them", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "GOV-082-P01-002", "score": 0.7050973176956177, "sibling_score": 0.7050973176956177, "answer_score": null, "sibling_qid": "MUM-2023-12-1068-Q007", "sibling_text": "and their functional differences", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Types of governor fitted on ships and how they differ", "cross_family": false }, { "answer_id": "EECS-001", "score": 0.6687405705451965, "sibling_score": 0.6687405705451965, "answer_score": null, "sibling_qid": "MUM-2024-09-0203-Q002", "sibling_text": "eexi eedi differences", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "01. Differentiate EEDI and EEXI — formula and units of each", "cross_family": false } ] }, { "qid": "MUM-2025-10-0509-Q005S2", "text": "Which chapter of IBC determines the chemical cargo types.", "family": "", "subtopic": "", "tid": "MUM-2025-10-0509", "tray": "review", "candidates": [ { "answer_id": "IBC-BCH-B-002", "score": 0.8202459812164307, "sibling_score": 0.8202459812164307, "answer_score": null, "sibling_qid": "MUM-2026-02-0730-Q009", "sibling_text": "which chapter of ibc determines the chemical cargo types", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Chemical cargo categories — MARPOL Annex II and IBC Chapters 17 & 18", "cross_family": false }, { "answer_id": "AII-DISCH-005", "score": 0.6834896802902222, "sibling_score": 0.6834896802902222, "answer_score": 0.6074822187423706, "sibling_qid": "KOC-2026-04-2101-Q012", "sibling_text": "categories of chemical cargoes from which regulations it can be identified", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "How chemical cargo categories are identified and where the requirements are found", "cross_family": false }, { "answer_id": "BCH-IBC-A-002", "score": 0.6775937676429749, "sibling_score": 0.6775937676429749, "answer_score": null, "sibling_qid": "CHE-2026-05-0565-Q007", "sibling_text": "chemical tanker type according to ibc code", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "The IBC Code — scope, purpose and application", "cross_family": false } ] }, { "qid": "MUM-2025-10-0509-Q005S3", "text": "Rudder pressure testing.? How will u know if rudder plate cracked.", "family": "", "subtopic": "", "tid": "MUM-2025-10-0509", "tray": "new", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.6034973859786987, "sibling_score": 0.6034973859786987, "answer_score": null, "sibling_qid": "KOL-2020-10-3353-Q001", "sibling_text": "rudder check in dd and pressure test", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "CYL-LINER-P03-002", "score": 0.551255464553833, "sibling_score": 0.551255464553833, "answer_score": null, "sibling_qid": "MUM-2022-11-2153-Q006", "sibling_text": "what are the indications when there is liner crack i said water will come in scavenge space and scavenge drain tank level alarm will come he asked what indictions in control room itself first i said temperature he said no something related to pr i said pr fluctuations in pr gauge he was like yaar jahaj hilta hai toh pr gauge hilega how will come to know it is because of crack then he only told that pr gauge will hunt rhythmically in sync with piston movement", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Detecting and confirming a cracked or leaking liner — and pinning the unit", "cross_family": false }, { "answer_id": "DUS-P5-05", "score": 0.505237254500389, "sibling_score": null, "answer_score": 0.505237254500389, "sibling_qid": "", "sibling_text": "rudder checks and rudder blade tightness leak test in drydock visual checks coating condition cavitation erosion on the blade leading edge propeller side face sacrificial anodes against the approved cathodic protection plan grounding continuity against the approved acceptance criterion plate and weld cracks pintle clearance measured with feeler the numerical acceptance limit is class specific and ", "sibling_family": "", "via": "answer_title", "answer_title": "Rudder checks and rudder-blade tightness/leak test in drydock", "cross_family": false } ] }, { "qid": "MUM-2025-10-0509-Q005S5", "text": "Afs code", "family": "", "subtopic": "", "tid": "MUM-2025-10-0509", "tray": "new", "candidates": [ { "answer_id": "AFS-309-001", "score": 0.6018474102020264, "sibling_score": 0.6018474102020264, "answer_score": 0.32323596328496934, "sibling_qid": "KOL-2017-12-0131-Q003", "sibling_text": "what is afs in detail", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "The AFS Convention — what it is, why it came, what it controls", "cross_family": false }, { "answer_id": "FFH-002", "score": 0.5680099725723267, "sibling_score": 0.5680099725723267, "answer_score": 0.3170875132083893, "sibling_qid": "KOC-2023-08-0215-Q002", "sibling_text": "fsa code", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "Is there an 'FSA Code'? The IMO FSA guideline framework", "cross_family": false }, { "answer_id": "FSS-CODE-001", "score": 0.5564466714859009, "sibling_score": 0.5564466714859009, "answer_score": null, "sibling_qid": "KOC-2024-08-0396-Q006", "sibling_text": "fss code", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "What is the FSS Code, its status under SOLAS, and why is it a separate code rather than text inside Chapter II-2?", "cross_family": false } ] }, { "qid": "MUM-2025-10-0512-Q001", "text": "Torsion Box", "family": "SOLAS", "subtopic": "Double Bottom / Torsion Box", "tid": "MUM-2025-10-0512", "tray": "review", "candidates": [ { "answer_id": "DB-TORBOX-B-003", "score": 0.7160940766334534, "sibling_score": 0.7160940766334534, "answer_score": 0.47486518025398256, "sibling_qid": "MUM-2026-05-3222-Q002", "sibling_text": "torsion box", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "What is a torsion box — definition and construction", "cross_family": false }, { "answer_id": "DBTB-A-004", "score": 0.6867043972015381, "sibling_score": 0.6867043972015381, "answer_score": 0.45147616863250734, "sibling_qid": "CHE-2026-05-0590-Q002", "sibling_text": "draw torsion box", "sibling_family": "Ship Construction", "via": "sibling", "answer_title": "Torsion box: construction and arrangement in a container ship", "cross_family": true }, { "answer_id": "DB-TORBOX-B-001", "score": 0.4314260631799698, "sibling_score": null, "answer_score": 0.4314260631799698, "sibling_qid": "", "sibling_text": "torsion box purpose location and why container ships closed box section cell at each deck side strength deck on top sheer strake side shell outboard inner longitudinal bulkhead inboard second deck platform closing it below purpose restore the torsional rigidity lost to the large deck openings resist hull twisting and warping in oblique quartering seas", "sibling_family": "", "via": "answer_title", "answer_title": "Torsion box — purpose, location, and why container ships", "cross_family": false } ] }, { "qid": "MUM-2025-10-0512-Q004", "text": "ISPS", "family": "ISPS", "subtopic": "SOLAS Ch.XI-2 Security", "tid": "MUM-2025-10-0512", "tray": "review", "candidates": [ { "answer_id": "ISPS-SL-001", "score": 0.7628423571586609, "sibling_score": 0.7628423571586609, "answer_score": 0.3202993541955948, "sibling_qid": "KOL-2024-10-0872-Q001", "sibling_text": "isps", "sibling_family": "ISPS", "via": "sibling", "answer_title": "The ISPS Code — purpose, scope and the SOLAS link", "cross_family": false }, { "answer_id": "ISPS-OV-001", "score": 0.7627002000808716, "sibling_score": 0.7627002000808716, "answer_score": 0.3201615482568741, "sibling_qid": "KOL-2024-02-1221-Q004", "sibling_text": "isps", "sibling_family": "ISPS", "via": "sibling", "answer_title": "ISPS Code: what it is, structure and key elements", "cross_family": false }, { "answer_id": "ISPS-SL-002", "score": 0.6810995936393738, "sibling_score": 0.6810995936393738, "answer_score": null, "sibling_qid": "CHE-2026-08-3896-Q010", "sibling_text": "isps element", "sibling_family": "ISPS", "via": "sibling", "answer_title": "Elements, contents, functional requirements, training and equipment", "cross_family": false } ] }, { "qid": "MUM-2025-10-0515-Q003", "text": "Arrangement of bulk carrier cargo hold", "family": "Cargo Ops - Bulk Carriers", "subtopic": "IMSBC / Grain / BLU Code", "tid": "MUM-2025-10-0515", "tray": "review", "candidates": [ { "answer_id": "BC-IMSBC-002", "score": 0.8694021105766296, "sibling_score": 0.8694021105766296, "answer_score": 0.6036081492900848, "sibling_qid": "MUM-2026-02-0762-Q008", "sibling_text": "arrangement of bulk carrier cargo hold", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "2. 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Bulk carrier safety requirements — SOLAS Chapter XII and recent additions", "cross_family": false } ] }, { "qid": "MUM-2025-10-0518-Q001", "text": "Type of ship, BC", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-10-0518", "tray": "review", "candidates": [ { "answer_id": "LLST-AB-001", "score": 0.7239196300506592, "sibling_score": 0.7239196300506592, "answer_score": 0.5061987042427063, "sibling_qid": "KOC-2026-09-2198-Q001", "sibling_text": "type a and b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.7057068347930908, "sibling_score": 0.7057068347930908, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.682364821434021, "sibling_score": 0.682364821434021, "answer_score": 0.5158288061618804, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2025-10-0518-Q002", "text": "Why loadicator is approved type, what are the things you can monitor in loadicator.", "family": "Stability & Loadicator", "subtopic": "Loadicator", "tid": "MUM-2025-10-0518", "tray": "review", "candidates": [ { "answer_id": "SOLAS12-BC-D-001", "score": 0.7769295573234558, "sibling_score": 0.7769295573234558, "answer_score": 0.3758973628282547, "sibling_qid": "MUM-2026-06-3412-Q002", "sibling_text": "why load indicator is approved type what are the things you can monitor in load indicator", "sibling_family": "Stability & Loadicator", "via": "sibling", "answer_title": "Loadicator — why a loading instrument is required, and the loading-restriction concern", "cross_family": false }, { "answer_id": "LLC-SURV-P02-001", "score": 0.5334696173667908, "sibling_score": 0.5334696173667908, "answer_score": null, "sibling_qid": "KOL-2024-04-3682-Q001", "sibling_text": "checks in loadline survey", "sibling_family": "", "via": "sibling", "answer_title": "1. Load line survey preparation: readiness, weather-tight checks and attendance", "cross_family": false }, { "answer_id": "LBT-TEST-B-001", "score": 0.4977978765964508, "sibling_score": 0.4977978765964508, "answer_score": null, "sibling_qid": "MUM-2022-12-0076-Q002", "sibling_text": "l b maintenance and dynamic load test proof load how much", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat/davit load-test proof loads and test conditions", "cross_family": true } ] }, { "qid": "MUM-2025-10-0519-Q002", "text": "How many solas chapter (15)", "family": "SOLAS - General (HOLD)", "subtopic": "Solas Chapters Overview", "tid": "MUM-2025-10-0519", "tray": "new", "candidates": [ { "answer_id": "SOLAS-OVW-012", "score": 0.6055042743682861, "sibling_score": 0.6055042743682861, "answer_score": null, "sibling_qid": "KOL-2025-07-0991-Q014", "sibling_text": "solas chapter 15", "sibling_family": "", "via": "sibling", "answer_title": "SOLAS Chapter XV and the newest chapters", "cross_family": false }, { "answer_id": "SOLAS-CH-014", "score": 0.553022027015686, "sibling_score": 0.553022027015686, "answer_score": 0.35819299817085265, "sibling_qid": "KOC-2022-10-0102-Q009", "sibling_text": "solas how many chapters what is the 14th chapter", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS Chapter XIV - Polar Code", "cross_family": true }, { "answer_id": "SOLAS-CH-012", "score": 0.5503766536712646, "sibling_score": 0.5503766536712646, "answer_score": null, "sibling_qid": "MUM-2020-08-0001-Q009", "sibling_text": "solas how many capters explain chapter 13 14", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS XI-1, XI-2 and XIII - safety, security and audit", "cross_family": true } ] }, { "qid": "MUM-2025-10-0519-Q003", "text": "Name the 15th chapter", "family": "Other Conventions", "subtopic": "Polar Code", "tid": "MUM-2025-10-0519", "tray": "new", "candidates": [ { "answer_id": "SOLAS-OVW-012", "score": 0.6299335360527039, "sibling_score": 0.6299335360527039, "answer_score": null, "sibling_qid": "MUM-2026-03-0813-Q015", "sibling_text": "solas chapter 15", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "SOLAS Chapter XV and the newest chapters", "cross_family": false }, { "answer_id": "SOLAS12-BC-B-002", "score": 0.4939408302307129, "sibling_score": 0.4939408302307129, "answer_score": 0.27956257611513136, "sibling_qid": "KOC-2026-09-2177-Q004", "sibling_text": "chapter 12 solas", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "SOLAS Chapter XII — the 14 regulations (list)", "cross_family": false }, { "answer_id": "SOLAS-OVW-003", "score": 0.4927179217338562, "sibling_score": 0.4927179217338562, "answer_score": null, "sibling_qid": "KOL-2026-01-1161-Q011", "sibling_text": "solas chapter 14", "sibling_family": "", "via": "sibling", "answer_title": "SOLAS Chapter XIV — ships operating in polar waters (Polar Code)", "cross_family": false } ] }, { "qid": "MUM-2025-10-0519-Q005", "text": "Tell me the dimensions of Discharge connection according to MARPOL", "family": "MARPOL - Annex I (Oil)", "subtopic": "Oil Discharge Criteria", "tid": "MUM-2025-10-0519", "tray": "review", "candidates": [ { "answer_id": "SEW-DISCH-007", "score": 0.6727120876312256, "sibling_score": 0.6727120876312256, "answer_score": 0.5969156444072723, "sibling_qid": "KOL-2025-08-1016-Q004", "sibling_text": "sdc standard dimensions for discharge connection", "sibling_family": "MARPOL - Annex IV (Sewage)", "via": "sibling", "answer_title": "7. Standard discharge connection (Regulation 10)", "cross_family": true }, { "answer_id": "ISC-329-004", "score": 0.6641748547554016, "sibling_score": 0.6641748547554016, "answer_score": 0.6127163112163544, "sibling_qid": "KOL-2023-10-0783-Q004", "sibling_text": "standard discharge connection international shore coupling difference", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "What is the difference between the SOLAS international shore connection and the MARPOL standard discharge connection?", "cross_family": true }, { "answer_id": "MARPOL-OV-005", "score": 0.6530721187591553, "sibling_score": 0.6530721187591553, "answer_score": null, "sibling_qid": "KOL-2025-09-1091-Q009", "sibling_text": "type of shore receptation facility discharge connection under all marpol annex", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Port reception facilities", "cross_family": true } ] }, { "qid": "MUM-2025-10-0519-Q009", "text": "Where we use it location", "family": "", "subtopic": "", "tid": "MUM-2025-10-0519", "tray": "review", "candidates": [ { "answer_id": "AUC-SEN-07", "score": 0.6595743894577026, "sibling_score": 0.6595743894577026, "answer_score": null, "sibling_qid": "KOC-2024-07-1370-Q003", "sibling_text": "where used", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Thermistor versus thermocouple — physics, signal and where each goes onboard", "cross_family": false }, { "answer_id": "CTRL-TL-002", "score": 0.6281952857971191, "sibling_score": 0.6281952857971191, "answer_score": null, "sibling_qid": "KOL-2022-10-1926-Q005", "sibling_text": "used where", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Function of a controller, and types used on board", "cross_family": false }, { "answer_id": "FSH-DET-004", "score": 0.5990759134292603, "sibling_score": 0.5990759134292603, "answer_score": 0.28360386192798615, "sibling_qid": 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torsion box", "sibling_family": "Ship Construction", "via": "sibling", "answer_title": "Torsion box: construction and arrangement in a container ship", "cross_family": true }, { "answer_id": "DB-TORBOX-B-001", "score": 0.4314260125160217, "sibling_score": null, "answer_score": 0.4314260125160217, "sibling_qid": "", "sibling_text": "torsion box purpose location and why container ships closed box section cell at each deck side strength deck on top sheer strake side shell outboard inner longitudinal bulkhead inboard second deck platform closing it below purpose restore the torsional rigidity lost to the large deck openings resist hull twisting and warping in oblique quartering seas", "sibling_family": "", "via": "answer_title", "answer_title": "Torsion box — purpose, location, and why container ships", "cross_family": false } ] }, { "qid": "MUM-2025-10-0525-Q001S2", "text": "engine type.", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2025-10-0525", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.8324596285820007, "sibling_score": 0.8324596285820007, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.8042263388633728, "sibling_score": 0.8042263388633728, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-001", "score": 0.4638089895248413, "sibling_score": null, "answer_score": 0.4638089895248413, "sibling_qid": "", "sibling_text": "1 turbocharger type main engine vs generator engine compressor is centrifugal in both cases only the turbine type differs large slow speed main engine axial flow turbine single stage constant pressure system", "sibling_family": "", "via": "answer_title", "answer_title": "1. Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "MUM-2025-10-0525-Q001S3", "text": "ISM, what is it, why it is necessary.", "family": "ISM Code", "subtopic": "ISM - Elements/Objectives", "tid": "MUM-2025-10-0525", "tray": "new", "candidates": [ { "answer_id": "ISM-DPA-002", "score": 0.5559269189834595, "sibling_score": 0.5559269189834595, "answer_score": null, "sibling_qid": "KOC-2023-03-0172-Q004", "sibling_text": "ism who is responsible for ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "DPA basis : which convention, which code, and who is responsible for ISM", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.5499415993690491, "sibling_score": 0.5499415993690491, "answer_score": null, "sibling_qid": "MUM-2025-06-0332-Q002", "sibling_text": "ism what is it why it is necessary", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "ISM-AUD-P02-002", "score": 0.5223119854927063, "sibling_score": 0.5223119854927063, "answer_score": 0.317986798286438, "sibling_qid": "KOC-2026-01-2087-Q013", "sibling_text": "what is the purpose of ism internal", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM Code — what it is, purpose, objectives and structure", "cross_family": false } ] }, { "qid": "MUM-2025-10-0525-Q001S4", "text": "What is MNC and how to deal with it.", "family": "ISM Code", "subtopic": "Major / Minor NC", "tid": "MUM-2025-10-0525", "tray": "new", "candidates": [ { "answer_id": "ISMNC-006", "score": 0.5527704358100891, "sibling_score": 0.5527704358100891, "answer_score": null, "sibling_qid": "MUM-2025-07-0361-Q010", "sibling_text": "how to deal with mnc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Your ship has been issued a major non-conformity: what action do you take, what are the repercussions, and can the ship sail with it?", "cross_family": false }, { "answer_id": "ISMNC-002", "score": 0.5504118204116821, "sibling_score": 0.5504118204116821, "answer_score": null, "sibling_qid": "MUM-2023-03-0091-Q009", "sibling_text": "define mnc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a major non-conformity under the ISM Code? 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IR testing of motor... procedure...Max voltage of megger for HV system", "family": "Electrical - Generator & Alternator", "subtopic": "Motoring Effect", "tid": "MUM-2025-10-1720", "tray": "review", "candidates": [ { "answer_id": "AVR-EXC-G-003", "score": 0.7339727878570557, "sibling_score": 0.7339727878570557, "answer_score": 0.5767569661140441, "sibling_qid": "MUM-2026-09-3866-Q011", "sibling_text": "two gen running in parallel one lost excitation what will happen", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Loss or reduction of excitation: effect and action", "cross_family": false }, { "answer_id": "RPT-C-002", "score": 0.7232059836387634, "sibling_score": 0.7232059836387634, "answer_score": null, "sibling_qid": "CHE-2026-03-0349-Q006", "sibling_text": "how to test low voltage trip patro sir transformer working and diagram distance between windings purpose will emg generator run in parallel with main generator cross how to check ir for single conductor purpose of insulation draw explain what happen if leakage current increase", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Testing & trying out the reverse power trip — onboard, at survey, and when it fails", "cross_family": false }, { "answer_id": "GEN-LSI-B-001", "score": 0.7042554020881653, "sibling_score": 0.7042554020881653, "answer_score": null, "sibling_qid": "KOL-2019-03-2269-Q002", "sibling_text": "two alternators running in parallel sharing equal kw load one generator excitation drop what happens cross question on pf", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01. Two alternators in parallel — same kW but different current and power factor: cause and correction", "cross_family": false } ] }, { "qid": "MUM-2025-10-1720-Q002", "text": "Construction and working of synchroscopes.", "family": "Gauges & Tools", "subtopic": "Clamp Meter", "tid": "MUM-2025-10-1720", "tray": "review", "candidates": [ { "answer_id": "SYNCRO-A-001", "score": 0.74130779504776, "sibling_score": 0.74130779504776, "answer_score": 0.5370966196060181, "sibling_qid": "MUM-2026-06-3518-Q001", "sibling_text": "construction and working of synchroscopes", "sibling_family": "Gauges & Tools", "via": "sibling", "answer_title": "Synchroscope — construction, working, purpose & circuit/principle", "cross_family": false }, { "answer_id": "SYNC-B-001", "score": 0.695085883140564, "sibling_score": 0.695085883140564, "answer_score": 0.5215561121702194, "sibling_qid": "MUM-2026-02-1923-Q001", "sibling_text": "synchroscop construction working", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Synchroscope — construction, working and purpose", "cross_family": true }, { "answer_id": "SYNC-ASYNC-A-002", "score": 0.4457302689552307, "sibling_score": null, "answer_score": 0.4457302689552307, "sibling_qid": "", "sibling_text": "construction and main parts of a synchronous motor stator frame laminated core slots three phase distributed armature winding terminals insulation and cooling passages rotor shaft rotor body or spider field poles or magnets field winding where fitted retaining hardware and air gap surface", "sibling_family": "", "via": "answer_title", "answer_title": "Construction and main parts of a synchronous motor", "cross_family": false } ] }, { "qid": "MUM-2025-10-1720-Q003", "text": "What protective measures use in HV system.", "family": "Electrical - High Voltage", "subtopic": "High Voltage System", "tid": "MUM-2025-10-1720", "tray": "review", "candidates": [ { "answer_id": "T038-P01-002", "score": 0.7905206084251404, "sibling_score": 0.7905206084251404, "answer_score": null, "sibling_qid": "MUM-2026-06-3518-Q002", "sibling_text": "what protective measures use in hv system", "sibling_family": "Electrical - High Voltage", "via": "sibling", "answer_title": "HV system onboard — layout, components, applications, earthing & protection", "cross_family": false }, { "answer_id": "HV-SYS-P04-001", "score": 0.6862430572509766, "sibling_score": 0.6862430572509766, "answer_score": 0.484122496843338, "sibling_qid": "MUM-2026-07-3747-Q016", "sibling_text": "extra protection in hv systems", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "HV-SYS-P04-001 - HV hazards, advantages and safeties", "cross_family": true }, { "answer_id": "CB-ACBVCBSF6-E-001", "score": 0.6008155941963196, "sibling_score": 0.6008155941963196, "answer_score": null, "sibling_qid": "CHE-2026-03-0356-Q008", "sibling_text": "which type of breaker used in hv system what is sf6 circuit why not used in hv system", "sibling_family": "Electrical - High Voltage", "via": "sibling", "answer_title": "What are the common types of circuit breakers used onboard and where are ACB, MCB, MCCB, VCB and SF6 breakers applied?", "cross_family": false } ] }, { "qid": "MUM-2025-10-1720-Q004", "text": "Principle and working of clamp meter.", "family": "Gauges & Tools", "subtopic": "Clamp Meter", "tid": "MUM-2025-10-1720", "tray": "review", "candidates": [ { "answer_id": "GMCM-583-A-009", "score": 0.7846913933753967, "sibling_score": 0.7846913933753967, "answer_score": 0.6020567178726196, "sibling_qid": "MUM-2026-06-3518-Q003", "sibling_text": "principle and working of clamp meter", "sibling_family": "Gauges & Tools", "via": "sibling", "answer_title": "09. The clamp (tong) meter — working principle, types, and why only a single conductor is clamped", "cross_family": false }, { "answer_id": "GMCM-583-A-010", "score": 0.691663384437561, "sibling_score": 0.691663384437561, "answer_score": 0.5491184651851654, "sibling_qid": "MUM-2024-07-1444-Q003", "sibling_text": "how clamp meter works value of clamp meter around 3 core cable", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "10. The clamp meter on a three-phase supply — what you read clamping one, two or all three conductors of a 100 A system", "cross_family": true }, { "answer_id": "GMCM-583-A-011", "score": 0.6710355281829834, "sibling_score": 0.6710355281829834, "answer_score": 0.5118304073810577, "sibling_qid": "KOC-2026-05-0028-Q009", "sibling_text": "how to use clamp meters", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "11. Using a clamp meter in service — what it can measure, and where to check on a running motor", "cross_family": true } ] }, { "qid": "MUM-2025-10-1721-Q002", "text": "Switchboard safety. How many terminals are there in a motor. How to connect them in start and delta. How reverse power trip works. Pid controller and its working. Pt & Ct working.", "family": "Electrical - Motors & Starters", "subtopic": "Star-Delta Starter", "tid": "MUM-2025-10-1721", "tray": "review", "candidates": [ { "answer_id": "REV-MOT-BF67-001", "score": 0.7853894233703613, "sibling_score": 0.7853894233703613, "answer_score": null, "sibling_qid": "MUM-2026-04-2123-Q003", "sibling_text": "suddenly you get low insulation alarm from deck machinery what is your action suppose there are 15 machineries on deck how will find out switchboard safety how many terminals are there in a motor how to connect them in start and delta how reverse power trip works pid controller and its working", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "How do you reverse a single-phase induction motor — what is the wiring connection?", "cross_family": false }, { "answer_id": "TG-MOTOR-005", "score": 0.7314948439598083, "sibling_score": 0.7314948439598083, "answer_score": 0.5531367242336273, "sibling_qid": "KOC-2025-01-1476-Q001", "sibling_text": "single phasing indications for purifier motor engine room turning gear circuit diagram turning gear starter mcb vs mccb thermistor vs thermocouple types of starter reverse power trip working and how it s carried out internal", "sibling_family": "Electrical - 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Crankshaft & Bedplate", "via": "sibling", "answer_title": "Checking tie rod tightness / slackness — stopped and running", "cross_family": false }, { "answer_id": "TBR-TT-P02-001", "score": 0.6566288471221924, "sibling_score": 0.6566288471221924, "answer_score": null, "sibling_qid": "CHE-2026-05-0641-Q012", "sibling_text": "holding down bolts checks and tightening", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Tie rod tightening / hydraulic tensioning procedure", "cross_family": false }, { "answer_id": "PRE-TEN-004", "score": 0.6006537675857544, "sibling_score": 0.6006537675857544, "answer_score": null, "sibling_qid": "KOL-2026-04-3946-Q003", "sibling_text": "how you will check the hydraulic bolts and nut tightness", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Tightening cylinder-head hydraulic bolts or nuts without a torque wrench", "cross_family": false } ] }, { "qid": "MUM-2025-10-2443-Q003", "text": "Risk assessment", "family": "Risk & Safety Management", "subtopic": "Enclosed Space Entry", "tid": "MUM-2025-10-2443", "tray": "review", "candidates": [ { "answer_id": "RA-MGMT-B-001", "score": 0.7977879643440247, "sibling_score": 0.7977879643440247, "answer_score": null, "sibling_qid": "KOL-2022-09-3563-Q003", "sibling_text": "risc assessment", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "How is a shipboard risk assessment prepared and carried out?", "cross_family": false }, { "answer_id": "RA-MGMT-A-001", "score": 0.7891297936439514, "sibling_score": 0.7891297936439514, "answer_score": 0.566388589143753, "sibling_qid": "MUM-2026-08-3829-Q002", "sibling_text": "risk assessment", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "What is risk, what is hazard, and what is risk assessment?", "cross_family": false }, { "answer_id": "LVC-577-001", "score": 0.5820225715637207, "sibling_score": null, "answer_score": 0.5820225715637207, "sibling_qid": "", "sibling_text": "define likelihood and consequence in risk assessment risk has two elements likelihood and consequence the matrix rating commonly combines them by multiplying where the sms uses that method likelihood the chance probability the harm occurs how likely how often", "sibling_family": "", "via": "answer_title", "answer_title": "Define likelihood and consequence in risk assessment", "cross_family": false } ] }, { "qid": "MUM-2025-10-2443-Q004", "text": "Type of Engine", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2025-10-2443", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.8006401062011719, "sibling_score": 0.8006401062011719, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.7930276393890381, "sibling_score": 0.7930276393890381, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-001", "score": 0.45252704024314877, "sibling_score": null, "answer_score": 0.45252704024314877, "sibling_qid": "", "sibling_text": "1 turbocharger type main engine vs generator engine compressor is centrifugal in both cases only the turbine type differs large slow speed main engine axial flow turbine single stage constant pressure system", "sibling_family": "", "via": "answer_title", "answer_title": "1. Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "MUM-2025-10-2443-Q005", "text": "Notation for long stroke, super long stroke engines?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2025-10-2443", "tray": "review", "candidates": [ { "answer_id": "ENG-NOM-005", "score": 0.7384883761405945, "sibling_score": 0.7384883761405945, "answer_score": null, "sibling_qid": "MUM-2024-11-2779-Q001", "sibling_text": "engine nomenclature explain super long stroke", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true }, { "answer_id": "EGTP-P02-012", "score": 0.7213345170021057, "sibling_score": 0.7213345170021057, "answer_score": null, "sibling_qid": "KOC-2026-01-1993-Q002", "sibling_text": "engine nomenclature explain what is super long stroke", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Stroke, Bore Ratio and Super-Long Stroke", "cross_family": true }, { "answer_id": "SB-RATIO-001", "score": 0.7144182920455933, "sibling_score": 0.7144182920455933, "answer_score": null, "sibling_qid": "MUM-2026-04-2955-Q007", "sibling_text": "stroke to bore ratio of superlong", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What is the stroke-to-bore ratio? Its significance, its upper and lower values, and the ratio of your own engine", "cross_family": true } ] }, { "qid": "MUM-2025-10-2443-Q005S4", "text": "Beta ratio of filter?", "family": "", "subtopic": "", "tid": "MUM-2025-10-2443", "tray": "review", "candidates": [ { "answer_id": "LOF-359-001", "score": 0.7634639143943787, "sibling_score": 0.7634639143943787, "answer_score": 0.47946870923042295, "sibling_qid": "MUM-2026-07-3719-Q014", "sibling_text": "beta ratio of filter", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Beta Ratio / Beta Efficiency", "cross_family": false }, { "answer_id": "CTRL-TL-004", "score": 0.35661643743515015, "sibling_score": null, "answer_score": 0.35661643743515015, "sibling_qid": "", "sibling_text": "ratio control and where it is used on board ratio control hold flow b as a fixed multiple of measured flow a wild flow measured but not controlled controlled flow manipulated to keep the ratio", "sibling_family": "", "via": "answer_title", "answer_title": "Ratio control and where it is used on board", "cross_family": false }, { "answer_id": "PID-CTRL-003", "score": 0.32229176461696624, "sibling_score": null, "answer_score": 0.32229176461696624, "sibling_qid": "", "sibling_text": "proportional gain and proportional band gain change in output divided by change in input error dimensionless when both are in percent of range proportional band is the percent of input span needed to stroke the output from 0 to 100", "sibling_family": "", "via": "answer_title", "answer_title": "Proportional gain and proportional band", "cross_family": false } ] }, { "qid": "MUM-2025-10-2443-Q006", "text": "Beta ratio 2 and 10 meaning.", "family": "Lube Oil System", "subtopic": "Lube oil Properties", "tid": "MUM-2025-10-2443", "tray": "new", "candidates": [ { "answer_id": "LOF-359-001", "score": 0.5944370031356812, "sibling_score": 0.5944370031356812, "answer_score": 0.38669982850551604, "sibling_qid": "MUM-2025-09-2848-Q022", "sibling_text": "which is good beta ratio of 2 or 10", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Beta Ratio / Beta Efficiency", "cross_family": true }, { "answer_id": "CTRL-TL-004", "score": 0.2807769149541855, "sibling_score": null, "answer_score": 0.2807769149541855, "sibling_qid": "", "sibling_text": "ratio control and where it is used on board ratio control hold flow b as a fixed multiple of measured flow a wild flow measured but not controlled controlled flow manipulated to keep the ratio", "sibling_family": "", "via": "answer_title", "answer_title": "Ratio control and where it is used on board", "cross_family": false }, { "answer_id": "PID-CTRL-003", "score": 0.26072741746902467, "sibling_score": null, "answer_score": 0.26072741746902467, "sibling_qid": "", "sibling_text": "proportional gain and proportional band gain change in output divided by change in input error dimensionless when both are in percent of range proportional band is the percent of input span needed to stroke the output from 0 to 100", "sibling_family": "", "via": "answer_title", "answer_title": "Proportional gain and proportional band", "cross_family": false } ] }, { "qid": "MUM-2025-10-2443-Q006S2", "text": "Counter balance valve", "family": "", "subtopic": "", "tid": "MUM-2025-10-2443", "tray": "review", "candidates": [ { "answer_id": "CBV-002", "score": 0.7367286682128906, "sibling_score": 0.7367286682128906, "answer_score": 0.5465265482664108, "sibling_qid": "MUM-2023-06-2731-Q003", "sibling_text": "counter balance valve working", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the working of a counter-balance valve and state where it is fitted in the hydraulic circuit.", "cross_family": false }, { "answer_id": "CBV-001", "score": 0.730256199836731, "sibling_score": 0.730256199836731, "answer_score": 0.5578700542449951, "sibling_qid": "MUM-2026-02-2928-Q011", "sibling_text": "counter balance valve", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "What is a counter-balance valve, why fitted, and why needed even with a directional-control valve?", "cross_family": false }, { "answer_id": "CBV-003", "score": 0.518809923529625, "sibling_score": null, "answer_score": 0.518809923529625, "sibling_qid": "", "sibling_text": "what is the use of the pilot line in a counter balance valve taps pump inlet side pressure and feeds a pilot piston that assists opening lets the valve open at a lower load pressure than the spring setting alone", "sibling_family": "", "via": "answer_title", "answer_title": "What is the use of the pilot line in a counter-balance valve?", "cross_family": false } ] }, { "qid": "MUM-2025-10-2456-Q003", "text": "Con rod change frequency of generator , why it is less for generator than main engine( I answer difference in RPM, no. Of loading is more)", "family": "General Marine Engineering", "subtopic": "Engine Ratings (MCR/NOR)", "tid": "MUM-2025-10-2456", "tray": "review", "candidates": [ { "answer_id": "LS-IMB-A-002", "score": 0.7176023721694946, "sibling_score": 0.7176023721694946, "answer_score": null, "sibling_qid": "KOL-2022-07-2574-Q004", "sibling_text": "two generators running parallel one generator rpm little less why", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "2. Governor speed droop, isochronous control and the load-control switch", "cross_family": true }, { "answer_id": "SHAFT-GEN-002", "score": 0.714471161365509, "sibling_score": 0.714471161365509, "answer_score": 0.5886170923709869, "sibling_qid": "KOL-2024-03-2698-Q004", "sibling_text": "shaft generator main engine rpm is not same but frequency remains constant how and how it works", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Holding constant voltage and frequency when main-engine RPM varies", "cross_family": true }, { "answer_id": "GOV-P03-003", "score": 0.6499277353286743, "sibling_score": 0.6499277353286743, "answer_score": null, "sibling_qid": "KOL-2019-02-1867-Q006", "sibling_text": "generator rpm is continuously changing can t able to take on load as 2nd engg what u wl do how to take onload", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Hunting, RPM fluctuation and troubleshooting", "cross_family": true } ] }, { "qid": "MUM-2025-10-2456-Q004", "text": "Boiler refractory getting damage frequently . Reasons", "family": "Boilers - Operations & Firing", "subtopic": "Boiler Operations", "tid": "MUM-2025-10-2456", "tray": "review", "candidates": [ { "answer_id": "FURN-REF-003", "score": 0.8227992653846741, "sibling_score": 0.8227992653846741, "answer_score": 0.6292627513408661, "sibling_qid": "MUM-2026-07-3768-Q006", "sibling_text": "boiler refractory is breaking frequently", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler refractory purpose, defects, failure reasons, maintenance and survey", "cross_family": false }, { "answer_id": "BFM-330-001", "score": 0.6810690760612488, "sibling_score": 0.6810690760612488, "answer_score": null, "sibling_qid": "MUM-2026-03-2930-Q005", "sibling_text": "boiler flame failure", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler flame failure or burner not firing — troubleshooting", "cross_family": false }, { "answer_id": "BFS-257-006", "score": 0.6751478314399719, "sibling_score": 0.6751478314399719, "answer_score": null, "sibling_qid": "MUM-2023-09-2193-Q006", "sibling_text": "boiler is back firing reasons", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler backfire / blowback / panting — causes, prevention, actions", "cross_family": false } ] }, { "qid": "MUM-2025-10-2456-Q005", "text": "How to balance generator after decarb.", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Decarb / Balancing / High Exhaust Temperature", "tid": "MUM-2025-10-2456", "tray": "new", "candidates": [ { "answer_id": "AEDEC-291-003", "score": 0.6272621750831604, "sibling_score": 0.6272621750831604, "answer_score": null, "sibling_qid": "KOL-2018-08-3182-Q003", "sibling_text": "checks after generator decarb", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "3. Pre-start checks after decarb / recommissioning", "cross_family": false }, { "answer_id": "LS-IMB-A-001", "score": 0.5569607019424438, "sibling_score": 0.5569607019424438, "answer_score": 0.36877264380455016, "sibling_qid": "KOL-2024-12-1792-Q007", "sibling_text": "after decarboninasation of generator how will you balance the generator load and cross questions", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Two paralleled generators sharing unequal load — cause and correction", "cross_family": true }, { "answer_id": "AEDEC-291-001", "score": 0.5365397334098816, "sibling_score": 0.5365397334098816, "answer_score": null, "sibling_qid": "KOC-2026-03-2014-Q003", "sibling_text": "work done onboard generator decarb", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "1. AE decarb / overhaul — preparation and full procedure", "cross_family": false } ] }, { "qid": "MUM-2025-10-2458-Q002", "text": "removal of rudder bearing.", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "MUM-2025-10-2458", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.8396754860877991, "sibling_score": 0.8396754860877991, "answer_score": 0.47819066047668457, "sibling_qid": "MUM-2026-06-3610-Q003", "sibling_text": "removal of rudder bearing", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "PRE-TEN-001", "score": 0.8175691366195679, "sibling_score": 0.8175691366195679, "answer_score": null, "sibling_qid": "MUM-2026-06-3504-Q007", "sibling_text": "rudder carrier bearing removal procedure", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Pre-stressing and pre-tensioning in main-engine bolting", "cross_family": false }, { "answer_id": "TRS-002", "score": 0.6792353987693787, "sibling_score": 0.6792353987693787, "answer_score": null, "sibling_qid": "KOC-2026-02-1103-Q008", "sibling_text": "how rudder stock and carrier bearing is attached told 2 half fitted bolts x does bearing turn with rudder i told yes then he told that there are 2 types one turn with rudder other dont turn with rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false } ] }, { "qid": "MUM-2025-10-2458-Q004", "text": "How to know the breach of the rudder.", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "MUM-2025-10-2458", "tray": "new", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.6367657780647278, "sibling_score": 0.6367657780647278, "answer_score": 0.3966930896043777, "sibling_qid": "MUM-2026-07-3814-Q006", "sibling_text": "rudder breach", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "RUD-DROP-003", "score": 0.5648682713508606, "sibling_score": 0.5648682713508606, "answer_score": 0.401669505238533, "sibling_qid": "KOL-2024-03-3677-Q002", "sibling_text": "how to check rudder drop where to fit trammel gauge rudder drop has reached its max limit and bearing white metal has gone how u ll proceed with its repair and what you ll do to bearing", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Rudder drop at the limit: the decision", "cross_family": false }, { "answer_id": "ESP-B-002", "score": 0.5564826726913452, "sibling_score": 0.5564826726913452, "answer_score": null, "sibling_qid": "MUM-2025-07-2338-Q003", "sibling_text": "iapp certificate survey 4 how to know the breach of the rudder 5 esp", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Close-up survey, thickness gauging, substantial corrosion & renewal criteria", "cross_family": true } ] }, { "qid": "MUM-2025-10-2461-Q003", "text": "Broken tie rod removal ?", "family": "2-Stroke - Structure & Tie Rods", "subtopic": "Tie Rod Function / Tightening / Removal", "tid": "MUM-2025-10-2461", "tray": "review", "candidates": [ { "answer_id": "TIE-ROD-C-002", "score": 0.7834733128547668, "sibling_score": 0.7834733128547668, "answer_score": 0.5870053201913833, "sibling_qid": "KOC-2024-12-1887-Q006", "sibling_text": "broken tie rod removal procedure", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Removing and renewing a broken tie rod — the bottom-piece problem", "cross_family": true }, { "answer_id": "TIE-ROD-C-001", "score": 0.4711414813995361, "sibling_score": null, "answer_score": 0.4711414813995361, "sibling_qid": "", "sibling_text": "detecting a broken or slack tie rod signs and effects of running on function recap the tie rods clamp bedplate a frame and entablature together in compression and carry the firing load back to the bedplate pre tensioned hydraulically so the castings and fitted location bolts are not intended to carry fatigue tension watch symptoms what the examiner wants a load varying knock from the structure red", "sibling_family": "", "via": "answer_title", "answer_title": "Detecting a broken or slack tie rod — signs, and effects of running on", "cross_family": false }, { "answer_id": "TBR-TT-P02-001", "score": 0.4516209155321121, "sibling_score": null, "answer_score": 0.4516209155321121, "sibling_qid": "", "sibling_text": "tie rod tightening hydraulic tensioning procedure hydraulic pre tension only never a spanner or torque jacks fit over the nuts and stretch the rod before tensioning take crankshaft deflection then slacken the pinching screws and any bearing jacking bolts so the rod can elongate freely a mid span clamped rod stretches unevenly and reads false", "sibling_family": "", "via": "answer_title", "answer_title": "Tie rod tightening / hydraulic tensioning procedure", "cross_family": false } ] }, { "qid": "MUM-2025-10-2853-Q001", "text": "10.2025 Internal Pravin Nair External gadkar Motor & Mep Ist attempt Viscosity index value and definition X question Biller Gauge glass type and maintenance Gauge glass safety Steering gear sluggish moment Action and maintenance Heat treatment Crankshaft material and heat treatment In place overhaul of stuffin box How to place to work table Main engine crankcase breather Cylinder liner overhaul and when we will change the liner Hot corrosion and cold corrosion when ? And where ?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2025-10-2853", "tray": "review", "candidates": [ { "answer_id": "CYL-LUB-B-002", "score": 0.666480302810669, "sibling_score": 0.666480302810669, "answer_score": null, "sibling_qid": "KOC-2022-07-0966-Q012", "sibling_text": "how is the viscosity index for cyl oil", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Cylinder oil — required properties; can any oil be used?", "cross_family": true }, { "answer_id": "THR-BRG-A-001", "score": 0.6663123369216919, "sibling_score": 0.6663123369216919, "answer_score": null, "sibling_qid": "KOL-2018-08-3179-Q005", "sibling_text": "thrust bearing clearance checking procedure shanmukh asapu paul and rao 4 6 how fuel is burnt crank shaft deflection why purifier gear case emulsification how critical rpm me governor and ae governor", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you check, measure, limit and adjust main-engine thrust bearing clearance?", "cross_family": true }, { "answer_id": "CRK-DEFL-002", "score": 0.6581420302391052, "sibling_score": 0.6581420302391052, "answer_score": null, "sibling_qid": "KOL-2016-08-2998-Q001", "sibling_text": "crankshaft deflection nd where to put the dial gauge if marks is not visible", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Taking the readings: gauge, positions and precautions", "cross_family": true } ] }, { "qid": "MUM-2025-10-2854-Q002", "text": "What company and what vessels you have sailed", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-10-2854", "tray": "review", "candidates": [ { "answer_id": "LLST-AB-002", "score": 0.7212314009666443, "sibling_score": 0.7212314009666443, "answer_score": null, "sibling_qid": "MUM-2026-05-3280-Q001", "sibling_text": "what company and what vessels you have sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.6203202605247498, "sibling_score": 0.6203202605247498, "answer_score": null, "sibling_qid": "CHE-2026-02-0481-Q001", "sibling_text": "type of vessels sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.6086065173149109, "sibling_score": 0.6086065173149109, "answer_score": null, "sibling_qid": "MUM-2026-05-3248-Q001", "sibling_text": "introduction sea time company pre sea ship type engine type me", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "MUM-2025-10-2854-Q004", "text": "■How to take bottom end bearing clearance of AE", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Decarb Checks / Connecting Rod / Bottom End Bearing", "tid": "MUM-2025-10-2854", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-007", "score": 0.7883111238479614, "sibling_score": 0.7883111238479614, "answer_score": 0.5179423540830612, "sibling_qid": "MUM-2026-05-3331-Q003", "sibling_text": "how to take bottom end bearing clearance of ae", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE big-end / bottom-end bearing — inspection, bedding, nip and crush", "cross_family": false }, { "answer_id": "AECR-651-004", "score": 0.7652520537376404, "sibling_score": 0.7652520537376404, "answer_score": 0.5552591383457184, "sibling_qid": "MUM-2026-05-3226-Q001", "sibling_text": "how will you take the bottom end bearing clearance of ae without removing bearing", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "How do you inspect the bottom-end bearing, and how do you take the AE big-end clearance without removing it?", "cross_family": false }, { "answer_id": "BEB-B-002", "score": 0.7092207074165344, "sibling_score": 0.7092207074165344, "answer_score": 0.5390670418739318, "sibling_qid": "MUM-2026-06-3438-Q005", "sibling_text": "me bottom end bearing how to take clearnce", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Bottom End Bearing — Clearance Measurement", "cross_family": false } ] }, { "qid": "MUM-2025-10-2855-Q001", "text": "External - kamath sir Internal - chaki 09/10/2025 Motor and mep 1- type of engine, nomenclature, difference between mc and me, what do you mean by “G” in nomenclature. Why is it called no smoke engine?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2025-10-2855", "tray": "review", "candidates": [ { "answer_id": "MCC-MEB-P01-001", "score": 0.6557939648628235, "sibling_score": 0.6557939648628235, "answer_score": null, "sibling_qid": "MUM-2026-01-1242-Q004", "sibling_text": "type of engine mcc engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "MC-C (\"Compact\") engine — design and the main constructional differences from MC", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.6473878026008606, "sibling_score": 0.6473878026008606, "answer_score": null, "sibling_qid": "MUM-2026-02-1272-Q003", "sibling_text": "me ae engine nomenclature", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false }, { "answer_id": "ALT-MTN-B-001", "score": 0.6447667479515076, "sibling_score": 0.6447667479515076, "answer_score": null, "sibling_qid": "MUM-2026-02-1281-Q001", "sibling_text": "main engine specification mc c", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Routine onboard alternator maintenance checks", "cross_family": false } ] }, { "qid": "MUM-2025-10-2855-Q002", "text": "How many safety valves in boiler, how many holes for that, why only one for 2 safety valves", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2025-10-2855", "tray": "review", "candidates": [ { "answer_id": "ACRV-005", "score": 0.6709442734718323, "sibling_score": 0.6709442734718323, "answer_score": null, "sibling_qid": "MUM-2026-06-3549-Q005", "sibling_text": "boiler safety valve maximum questions", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.6421045064926147, "sibling_score": 0.6421045064926147, "answer_score": null, "sibling_qid": "CHE-2026-09-3919-Q009", "sibling_text": "boiler safety valve setting in front of surveyor first and second safety valve pressure difference", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.6188947558403015, "sibling_score": 0.6188947558403015, "answer_score": null, "sibling_qid": "MUM-2026-01-1242-Q010", "sibling_text": "boiler safety valve type and what is left of safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "MUM-2025-10-2855-Q008", "text": "Short cycling of refer system ?", "family": "Refrigeration & AC", "subtopic": "Compressor Construction / Belt Drive / Compressor Troubleshooting", "tid": "MUM-2025-10-2855", "tray": "review", "candidates": [ { "answer_id": "CCSC-314-001", "score": 0.6628755927085876, "sibling_score": 0.6628755927085876, "answer_score": 0.3130053162574768, "sibling_qid": "MUM-2026-02-1271-Q004", "sibling_text": "short cycling in refer", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Refrigeration compressor short cycling — meaning, causes and corrective action", "cross_family": false }, { "answer_id": "REF-CYC-001", "score": 0.6127762198448181, "sibling_score": 0.6127762198448181, "answer_score": null, "sibling_qid": "MUM-2023-12-2212-Q001", "sibling_text": "refer cycle", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "1. The vapour-compression refrigeration cycle and refrigerant flow", "cross_family": false }, { "answer_id": "VDIP-589-005", "score": 0.2681608319282532, "sibling_score": null, "answer_score": 0.2681608319282532, "sibling_qid": "", "sibling_text": "how long does the transient take to recover when load is thrown on the rule sets a maximum time for the voltage to return inside a defined band class and edition specific frequency carries its own transient band permanent band and recovery time also class and edition specific", "sibling_family": "", "via": "answer_title", "answer_title": "How long does the transient take to recover when load is thrown on?", "cross_family": false } ] }, { "qid": "MUM-2025-10-2855-Q010", "text": "fuel can lead and fuel pump timing ? What does it indicate?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Pump Timing", "tid": "MUM-2025-10-2855", "tray": "review", "candidates": [ { "answer_id": "FCL-P01-001", "score": 0.7421891093254089, "sibling_score": 0.7421891093254089, "answer_score": 0.5580317229032516, "sibling_qid": "KOC-2026-03-2019-Q009", "sibling_text": "any fuel pump timing method and lead measurements", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel pump lead and fuel cam lead: meaning, measurement, significance and adjustment", "cross_family": false }, { "answer_id": "FCL-P02-001", "score": 0.6925791501998901, "sibling_score": 0.6925791501998901, "answer_score": 0.5020649313926696, "sibling_qid": "KOC-2023-08-1819-Q004", "sibling_text": "fuel pump timing any", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel pump / injection timing check, setting, and adjustment", "cross_family": false }, { "answer_id": "FCL-P03-001", "score": 0.6923529505729675, "sibling_score": 0.6923529505729675, "answer_score": null, "sibling_qid": "MUM-2023-06-2176-Q003", "sibling_text": "ae fuel pump timing finding out", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "AE / auxiliary-engine fuel pump timing check and adjustment", "cross_family": false } ] }, { "qid": "MUM-2025-10-2857-Q002", "text": "How to take ae bottom end clearance without removing any thing", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Decarb Checks / Connecting Rod / Bottom End Bearing", "tid": "MUM-2025-10-2857", "tray": "review", "candidates": [ { "answer_id": "AECR-651-004", "score": 0.7041623592376709, "sibling_score": 0.7041623592376709, "answer_score": 0.49516014456748964, "sibling_qid": "MUM-2026-05-3226-Q001", "sibling_text": "how will you take the bottom end bearing clearance of ae without removing bearing", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "How do you inspect the bottom-end bearing, and how do you take the AE big-end clearance without removing it?", "cross_family": false }, { "answer_id": "AE-CRP-007", "score": 0.6757828593254089, "sibling_score": 0.6757828593254089, "answer_score": null, "sibling_qid": "MUM-2026-05-3331-Q003", "sibling_text": "how to take bottom end bearing clearance of ae", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE big-end / bottom-end bearing — inspection, bedding, nip and crush", "cross_family": false }, { "answer_id": "BEB-B-002", "score": 0.6532509922981262, "sibling_score": 0.6532509922981262, "answer_score": 0.5153811395168304, "sibling_qid": "KOC-2025-03-2061-Q009", "sibling_text": "how to take bottom end clearance", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bottom End Bearing — Clearance Measurement", "cross_family": true } ] }, { "qid": "MUM-2025-10-2858-Q001", "text": "M/E specification. What is Mark No. What it tells. 2. What is L.O Bio degradation. In stern tube sea water enters sometimes which is common So why no bio degradation takes place here. 3. Everyday 300litre stern tube are loosing action 4. How to measure paint thickness ( Wet paint and Dry paint both.) What is the difference in values between wet paint and dry paint. In Engine room what type paints are used. In Fresh water tank which type of paint is applied. 5. Piston crown cracked. What indication you will get.", "family": "General Marine Engineering", "subtopic": "Engine Ratings (MCR/NOR)", "tid": "MUM-2025-10-2858", "tray": "review", "candidates": [ { "answer_id": "HULL-PAINT-001", "score": 0.6664932370185852, "sibling_score": 0.6664932370185852, "answer_score": null, "sibling_qid": "MUM-2026-05-3352-Q008", "sibling_text": "paint scheme in drydock in detail tell about all the coats with thickness", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Preparing the hull surface before painting in dry dock — cleanliness standard and methods", "cross_family": true }, { "answer_id": "AFS-309-003", "score": 0.6590868234634399, "sibling_score": 0.6590868234634399, "answer_score": null, "sibling_qid": "KOC-2023-07-0203-Q019", "sibling_text": "anti fouling paint type effect of tbt i told 2 points but he want more effects of tbt self polishing copolymer paint wat it is which paint uses biocide he asked not sure for that internal ism certificates types of survey in ism he wants to hear interim initial intermediate renewal additional", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "IAFS Certificate, survey, validity and drydock compliance", "cross_family": true }, { "answer_id": "A5-GARB-006", "score": 0.6543481349945068, "sibling_score": 0.6543481349945068, "answer_score": null, "sibling_qid": "CHE-2025-08-0053-Q005", "sibling_text": "what will you do with old paint which is chipped on deck or engine room under which annex it comes under what is exactly given in annex 5 po deciding a60 bulkhead where it is found", "sibling_family": "MARPOL - Annex V (Garbage)", "via": "sibling", "answer_title": "Dunnage, paint chips and scrapings — disposal", "cross_family": true } ] }, { "qid": "MUM-2025-10-2859-Q005", "text": "What do they do", "family": "", "subtopic": "", "tid": "MUM-2025-10-2859", "tray": "review", "candidates": [ { "answer_id": "VIB-BAL-A-001", "score": 0.65461665391922, "sibling_score": 0.65461665391922, "answer_score": null, "sibling_qid": "KOC-2025-08-2069-Q007", "sibling_text": "what do they do", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "VIB-A-01 — Engine vibration — what it is, its types and causes, and how it is controlled", "cross_family": false }, { "answer_id": "HT-A-001", "score": 0.5237279534339905, "sibling_score": 0.5237279534339905, "answer_score": null, "sibling_qid": "MUM-2026-03-2642-Q018", "sibling_text": "what does it do", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Heat treatment: what it is, the main methods, and why it is done", "cross_family": false }, { "answer_id": "PUR-OPS-P01-002", "score": 0.494607150554657, "sibling_score": 0.494607150554657, "answer_score": null, "sibling_qid": "KOL-2019-03-1445-Q005", "sibling_text": "thing it does", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Purifier — principle, working, and how the self-cleaning bowl closes", "cross_family": false } ] }, { "qid": "MUM-2025-10-2859-Q010", "text": "Are there low pressure and high pressure sensors in cargo tank.", "family": "Cargo Ops - Bulk Carriers", "subtopic": "IMSBC / Grain / BLU Code", "tid": "MUM-2025-10-2859", "tray": "review", "candidates": [ { "answer_id": "CPS-316-005", "score": 0.7548609375953674, "sibling_score": 0.7548609375953674, "answer_score": 0.5847323328256607, "sibling_qid": "KOC-2025-06-2067-Q013", "sibling_text": "are there low pressure and high pressure sensors in cargo tank", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Cargo-tank pressure during discharge: monitoring, maintenance and high/low-pressure sensing", "cross_family": true }, { "answer_id": "MAST-PVA-004", "score": 0.6514536142349243, "sibling_score": 0.6514536142349243, "answer_score": null, "sibling_qid": "KOC-2022-12-0114-Q007", "sibling_text": "cargo tank low pressure setting and low low pressure setting", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "P/V valve & P/V breaker — pressure/vacuum settings and the basis", "cross_family": true }, { "answer_id": "IGAT-583-003", "score": 0.5971385836601257, "sibling_score": 0.5971385836601257, "answer_score": null, "sibling_qid": "KOC-2024-03-0312-Q006", "sibling_text": "pv valve values alarm values for ig low low low pressure alarm what happens when cargo tank ig pressure becomes low", "sibling_family": "Cargo Ops - 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How will you do mcsw pump performance when main engine is running. You have to do the performance on that single pump. Also thrust bearing in generator where it is?", "family": "General Marine Engineering", "subtopic": "Engine Ratings (MCR/NOR)", "tid": "MUM-2025-10-2859", "tray": "review", "candidates": [ { "answer_id": "PCD-P01-05", "score": 0.755803108215332, "sibling_score": 0.755803108215332, "answer_score": null, "sibling_qid": "KOC-2025-08-2069-Q016", "sibling_text": "how will you do mcsw pump performance when main engine is running you have to do the performance on that single pump also thrust bearing in generator where it is", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Checking centrifugal pump performance — head, flow and the MCSW check with M/E running", "cross_family": true }, { "answer_id": "SCAV-323-P01-006", "score": 0.6432129144668579, "sibling_score": 0.6432129144668579, "answer_score": null, "sibling_qid": "KOL-2018-07-1396-Q004", "sibling_text": "you are in engine control room scavenge fire has taken place how will you come to know what actions you will take factors responsible for scavenge fire if the main engine is at sea and running how you will come to know through which unit blow past is occurring", "sibling_family": "2-Stroke - 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Lubrication & Bearings", "via": "sibling", "answer_title": "Bearing Numbers, Suffixes and What to State When Ordering", "cross_family": false }, { "answer_id": "MAIN-BRG-A-001", "score": 0.5888395309448242, "sibling_score": 0.5888395309448242, "answer_score": null, "sibling_qid": "KOL-2022-07-3555-Q001", "sibling_text": "main bearing survey tools used names", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How is a main bearing surveyed, inspected or condition-monitored?", "cross_family": false }, { "answer_id": "BRG-NOM-004", "score": 0.5808303356170654, "sibling_score": 0.5808303356170654, "answer_score": null, "sibling_qid": "KOL-2024-04-3686-Q002", "sibling_text": "what is nip of bearing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bearing Nip/Crush, Clearance, and How the Shell is Held", "cross_family": false } ] }, { "qid": "MUM-2025-11-0551-Q010", "text": "bonjean curve", "family": "Ship Construction & Stability", "subtopic": "", "tid": "MUM-2025-11-0551", "tray": "new", "candidates": [ { "answer_id": "HYD-BONJ-002", "score": 0.6495231986045837, "sibling_score": 0.6495231986045837, "answer_score": 0.3938033446669578, "sibling_qid": "MUM-2026-06-3540-Q011", "sibling_text": "bonjean curve", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Bonjean curves — what they are and what they are for", "cross_family": false }, { "answer_id": "LOLL-P02-004", "score": 0.2952230557799339, "sibling_score": null, "answer_score": 0.2952230557799339, "sibling_qid": "", "sibling_text": "3 angle of loll on the gz curve the gm condition initial slope of the gz curve at the origin gm negative gm means the curve dips below the axis first tangent at the origin taken to 57 3 1 radian reads gm on the vertical here it reads negative", "sibling_family": "", "via": "answer_title", "answer_title": "3. Angle of loll on the GZ curve — the GM condition", "cross_family": false }, { "answer_id": "STAB-GZ-P03-001", "score": 0.2888437300920486, "sibling_score": null, "answer_score": 0.2888437300920486, "sibling_qid": "", "sibling_text": "cross curves kn curves what they are their axes and how they give you gz kn is the righting arm from the keel k to the line of action of buoyancy n is the foot of that perpendicular pure hull geometry a function of hull form displacement and heel angle only independent of kg", "sibling_family": "", "via": "answer_title", "answer_title": "Cross curves / KN curves — what they are, their axes, and how they give you GZ", "cross_family": false } ] }, { "qid": "MUM-2025-11-0553-Q001", "text": "Type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-11-0553", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.837036669254303, "sibling_score": 0.837036669254303, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.801808774471283, "sibling_score": 0.801808774471283, "answer_score": 0.5473706603050231, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8005447387695312, "sibling_score": 0.8005447387695312, "answer_score": 0.5217237085103988, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2025-11-0554-Q002", "text": "and what stability is checked", "family": "", "subtopic": "", "tid": "MUM-2025-11-0554", "tray": "review", "candidates": [ { "answer_id": "INCL-EXP-D-003", "score": 0.7839118838310242, "sibling_score": 0.7839118838310242, "answer_score": 0.42668928802013395, "sibling_qid": "MUM-2025-11-0554-Q011", "sibling_text": "and what stability is checked", "sibling_family": "", "via": "sibling", "answer_title": "Reading the result — is she stable? Positive, zero and negative GM", "cross_family": false }, { "answer_id": "STAB-D-002", "score": 0.6817914843559265, "sibling_score": 0.6817914843559265, "answer_score": null, "sibling_qid": "KOC-2022-03-1182-Q007", "sibling_text": "stability criteria", "sibling_family": "", "via": "sibling", "answer_title": "Stability Criteria - How We Judge a Ship Is Stable", "cross_family": false }, { "answer_id": "STAB-SD-A-001", "score": 0.6764198541641235, "sibling_score": 0.6764198541641235, "answer_score": null, "sibling_qid": "KOC-2025-03-0584-Q008", "sibling_text": "intact stability criteria where is it mentioned", "sibling_family": "", "via": "sibling", "answer_title": "Intact stability and the 2008 IS Code criteria", "cross_family": false } ] }, { "qid": "MUM-2025-11-0554-Q005", "text": "technical advantage", "family": "", "subtopic": "", "tid": "MUM-2025-11-0554", "tray": "review", "candidates": [ { "answer_id": "BHD-TYPE-A-001", "score": 0.7750316262245178, "sibling_score": 0.7750316262245178, "answer_score": null, "sibling_qid": "MUM-2025-11-0554-Q012", "sibling_text": "technical advantage", "sibling_family": "", "via": "sibling", "answer_title": "Bulkheads — types, classification, functions and purpose", "cross_family": false }, { "answer_id": "HV-SYS-P02-001", "score": 0.5730268955230713, "sibling_score": 0.5730268955230713, "answer_score": null, "sibling_qid": "KOL-2019-01-2254-Q003", "sibling_text": "hv advantage", "sibling_family": "", "via": "sibling", "answer_title": "Why high voltage is used onboard ships", "cross_family": false }, { "answer_id": "MCC-MEB-P02-004", "score": 0.5438510179519653, "sibling_score": 0.5438510179519653, "answer_score": null, "sibling_qid": "KOL-2021-09-1624-Q003", "sibling_text": "intelligent engine advantages", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What an intelligent (smart) ME engine is, and why owners prefer it", "cross_family": false } ] }, { "qid": "MUM-2025-11-0555-Q001", "text": "Which type of ship( crude oil and lpg)", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-11-0555", "tray": "review", "candidates": [ { "answer_id": "LPG-LNG-009", "score": 0.7669013142585754, "sibling_score": 0.7669013142585754, "answer_score": null, "sibling_qid": "CHE-2026-04-0164-Q001", "sibling_text": "type of ship sailed lpg carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Gas-carrier fundamentals and ship-specific traps", "cross_family": false }, { "answer_id": "IBC-BCH-B-004", "score": 0.69732666015625, "sibling_score": 0.69732666015625, "answer_score": null, "sibling_qid": "MUM-2026-05-3156-Q001", "sibling_text": "type of ships chemical tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Certificate of Fitness and MARPOL Annex II in practice", "cross_family": false }, { "answer_id": "COT-01", "score": 0.6936554312705994, "sibling_score": 0.6936554312705994, "answer_score": 0.5311244547367096, "sibling_qid": "MUM-2026-02-0757-Q001", "sibling_text": "sanjib ship type oil tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Oil-tanker types, definitions and cargo capability", "cross_family": false } ] }, { "qid": "MUM-2025-11-0556-Q001", "text": "which functions ur appearing.", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-11-0556", "tray": "review", "candidates": [ { "answer_id": "IMO-CODES-P03-002", "score": 0.6829093098640442, "sibling_score": 0.6829093098640442, "answer_score": null, "sibling_qid": "MUM-2026-03-0815-Q003", "sibling_text": "which function", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": false }, { "answer_id": "LRHR-B-010", "score": 0.5393854379653931, "sibling_score": 0.5393854379653931, "answer_score": null, "sibling_qid": "KOL-2018-09-0221-Q005", "sibling_text": "hru function n everything", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Explain the HRU's operating principle and full operation. Draw it.", "cross_family": true }, { "answer_id": "CHK-RM-001", "score": 0.5297762751579285, "sibling_score": 0.5297762751579285, "answer_score": null, "sibling_qid": "KOL-2022-04-1918-Q004", "sibling_text": "chocks function types", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What are chocks? Function, types, where fitted and how placed — which have the biggest area, and how does the bedplate connect to the hull?", "cross_family": true } ] }, { "qid": "MUM-2025-11-0556-Q002", "text": "which ship u have done.", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-11-0556", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8104363083839417, "sibling_score": 0.8104363083839417, "answer_score": null, "sibling_qid": "MUM-2026-03-2588-Q001", "sibling_text": "which ships u have done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.6854736804962158, "sibling_score": 0.6854736804962158, "answer_score": null, "sibling_qid": "MUM-2026-02-0741-Q001", "sibling_text": "which ship u have sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "SOLAS12-BC-A-001", "score": 0.6700352430343628, "sibling_score": 0.6700352430343628, "answer_score": null, "sibling_qid": "MUM-2026-04-2958-Q001", "sibling_text": "ship done bulk carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "SOLAS definition and scope of a bulk carrier", "cross_family": false } ] }, { "qid": "MUM-2025-11-0556-Q004", "text": "which type of cargo carried.", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-11-0556", "tray": "review", "candidates": [ { "answer_id": "TKR-TYPE-004", "score": 0.7107115387916565, "sibling_score": 0.7107115387916565, "answer_score": 0.4680728167295456, "sibling_qid": "MUM-2026-07-3790-Q002", "sibling_text": "which cargo u carried", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "4. Tanker cargo-type classification, examples, and sweet vs sour crude", "cross_family": false }, { "answer_id": "COT-01", "score": 0.6766735315322876, "sibling_score": 0.6766735315322876, "answer_score": 0.4661805689334869, "sibling_qid": "MUM-2023-10-0138-Q001", "sibling_text": "types of tankers cargos carried", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Oil-tanker types, definitions and cargo capability", "cross_family": true }, { "answer_id": "FQCC-583-A-003", "score": 0.6595393419265747, "sibling_score": 0.6595393419265747, "answer_score": null, "sibling_qid": "MUM-2026-02-0791-Q003", "sibling_text": "types of cargoes diesel", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel grades and marine fuel naming", "cross_family": true } ] }, { "qid": "MUM-2025-11-0556-Q014", "text": "IMDG code explain.", "family": "Other Conventions", "subtopic": "IMDG Code", "tid": "MUM-2025-11-0556", "tray": "review", "candidates": [ { "answer_id": "IMDG-002", "score": 0.7180345058441162, "sibling_score": 0.7180345058441162, "answer_score": 0.29134607315063477, "sibling_qid": "KOC-2023-05-0189-Q005", "sibling_text": "imdg code and explain all classes", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What are the classes and categories of cargo under the IMDG Code? Explain all nine", "cross_family": false }, { "answer_id": "IMDG-001", "score": 0.7008371949195862, "sibling_score": 0.7008371949195862, "answer_score": 0.2835216596722603, "sibling_qid": "KOC-2023-08-0212-Q007", "sibling_text": "imdg code content", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is the IMDG Code? Its contents, parts and supplements", "cross_family": false }, { "answer_id": "IMO-CODES-P03-001", "score": 0.2863861992955208, "sibling_score": null, "answer_score": 0.2863861992955208, "sibling_qid": "", "sibling_text": "important imo conventions and codes parent links", "sibling_family": "", "via": "answer_title", "answer_title": "Important IMO conventions and codes: parent links", "cross_family": false } ] }, { "qid": "MUM-2025-11-0558-Q001", "text": "Because of Internet problem i couldn't here any of his question properly,", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-11-0558", "tray": "new", "candidates": [ { "answer_id": "MRV-DCS-001", "score": 0.5290212035179138, "sibling_score": 0.5290212035179138, "answer_score": null, "sibling_qid": "CHE-2025-10-0516-Q008", "sibling_text": "he asked something like mrvs something i dont know", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is the difference between EU MRV and IMO DCS?", "cross_family": true }, { "answer_id": "EEXI-005", "score": 0.5154926776885986, "sibling_score": 0.5154926776885986, "answer_score": null, "sibling_qid": "KOL-2025-12-4078-Q005", "sibling_text": "what are factors for epl how is it calculated network gone and was out of oral then joined after 2 hours said have you fixed the internet", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "The Engine Power Limiter — how it is fitted on MC and ME engines, the setpoint, ShaPoLi, the records, and derating to meet EEXI", "cross_family": true }, { "answer_id": "UNCLOS-001", "score": 0.5092452764511108, "sibling_score": 0.5092452764511108, "answer_score": null, "sibling_qid": "KOL-2021-10-0563-Q006", "sibling_text": "unclos purpose he wanted to hear one sentence i told whole thing", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is UNCLOS? Explain it in detail — full form, purpose and features", "cross_family": true } ] }, { "qid": "MUM-2025-11-0558-Q002", "text": "I tried to ask him twice about all questions", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-11-0558", "tray": "new", "candidates": [ { "answer_id": "ISM-AUDIT-P01-001", "score": 0.500348687171936, "sibling_score": 0.500348687171936, "answer_score": null, "sibling_qid": "KOC-2021-07-0009-Q006", "sibling_text": "ism preparation i told more than 10 but he is not satisfied", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Preparing engine room, records and documents for ISM/SMS audit (2/E)", "cross_family": true }, { "answer_id": "CSAS-SURV-002", "score": 0.49169713258743286, "sibling_score": 0.49169713258743286, "answer_score": null, "sibling_qid": "MUM-2025-12-0661-Q005", "sibling_text": "different survey on cargo ship few more at every question he want confim and was asking twice and i did not changed any ans", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Main types of class surveys on a cargo ship", "cross_family": true }, { "answer_id": "WARD-LEO-001", "score": 0.49068427085876465, "sibling_score": 0.49068427085876465, "answer_score": null, "sibling_qid": "MUM-2025-11-1790-Q004", "sibling_text": "ward leonard and cross questions he wanted to know everything in detail not just basic", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Explain the Ward Leonard system and its speed-governing principle", "cross_family": true } ] }, { "qid": "MUM-2025-11-0558-Q003", "text": "Check ur internet connection before enter", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-11-0558", "tray": "new", "candidates": [ { "answer_id": "SHORE-CONN-P03-001", "score": 0.4981977045536041, "sibling_score": 0.4981977045536041, "answer_score": null, "sibling_qid": "KOL-2025-08-2845-Q002", "sibling_text": "checks for shore connection", "sibling_family": "", "via": "sibling", "answer_title": "Taking electrical shore power in dry dock — preparation, checks and procedure", "cross_family": false }, { "answer_id": "SHORE-CONN-P02-002", "score": 0.4973921775817871, "sibling_score": 0.4973921775817871, "answer_score": null, "sibling_qid": "KOC-2022-07-1184-Q004", "sibling_text": "shore connection draw and explain checks before connecting", "sibling_family": "", "via": "sibling", "answer_title": "The shore connection single-line diagram — and why the transformer", "cross_family": false }, { "answer_id": "HT-A-001", "score": 0.49579209089279175, "sibling_score": 0.49579209089279175, "answer_score": null, "sibling_qid": "KOC-2025-07-1926-Q007", "sibling_text": "how to check", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Heat treatment: what it is, the main methods, and why it is done", "cross_family": true } ] }, { "qid": "MUM-2025-11-0558-Q004", "text": "1 which ship have u done", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-11-0558", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.7891423106193542, "sibling_score": 0.7891423106193542, "answer_score": null, "sibling_qid": "MUM-2026-03-2588-Q001", "sibling_text": "which ships u have done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.6669090986251831, "sibling_score": 0.6669090986251831, "answer_score": null, "sibling_qid": "MUM-2026-02-0741-Q001", "sibling_text": "which ship u have sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.638346791267395, "sibling_score": 0.638346791267395, "answer_score": 0.3852193772792816, "sibling_qid": "CHE-2026-05-0614-Q001", "sibling_text": "start from type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "MUM-2025-11-0558-Q005", "text": "2 last ship DWT", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-11-0558", "tray": "new", "candidates": [ { "answer_id": "TONN-003", "score": 0.5017922520637512, "sibling_score": 0.5017922520637512, "answer_score": null, "sibling_qid": "KOL-2022-02-0602-Q001", "sibling_text": "type ship dwt", "sibling_family": "", "via": "sibling", "answer_title": "Deadweight Tonnage (DWT) — definition and calculation", "cross_family": false }, { "answer_id": "CLASS-NOT-001", "score": 0.471024751663208, "sibling_score": 0.471024751663208, "answer_score": null, "sibling_qid": "MUM-2026-06-3644-Q002", "sibling_text": "draw notation of last ship", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is class notation, and how would you explain the notation written for your ship?", "cross_family": true }, { "answer_id": "LLST-AB-002", "score": 0.4609856605529785, "sibling_score": 0.4609856605529785, "answer_score": null, "sibling_qid": "KOC-2026-09-2168-Q004", "sibling_text": "b 60 and b 100 ship", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": true } ] }, { "qid": "MUM-2025-11-0558-Q007", "text": "4 where will find second engineer duties onboard", "family": "ISM Code", "subtopic": "Joining Ship Handover", "tid": "MUM-2025-11-0558", "tray": "review", "candidates": [ { "answer_id": "LLC-SURV-P01-001", "score": 0.6519114971160889, "sibling_score": 0.6519114971160889, "answer_score": null, "sibling_qid": "KOL-2018-06-2202-Q018", "sibling_text": "load line survey second engineer duty", "sibling_family": "", "via": "sibling", "answer_title": "Load line survey preparation as Second Engineer: engine-room scope, machinery openings, tanks/vents, valves and overboard checks", "cross_family": false }, { "answer_id": "BUNK-PLAN-001", "score": 0.651270866394043, "sibling_score": 0.651270866394043, "answer_score": 0.5537561416625977, "sibling_qid": "KOL-2018-03-0165-Q006", "sibling_text": "duties of 2nd engineer during bunker", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Second Engineer's duties, preparation and checks for bunkering", "cross_family": true }, { "answer_id": "ISPS-SSP-P02-004", "score": 0.6447842121124268, "sibling_score": 0.6447842121124268, "answer_score": null, "sibling_qid": "KOC-2026-04-0895-Q015", "sibling_text": "isps duties of second engineer", "sibling_family": "ISPS", "via": "sibling", "answer_title": "ISSC certification, verification, Code content and Declaration of Security", "cross_family": true } ] }, { "qid": "MUM-2025-11-0560-Q001", "text": "Which function appearing", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-11-0560", "tray": "review", "candidates": [ { "answer_id": "IMO-CODES-P03-002", "score": 0.7725129127502441, "sibling_score": 0.7725129127502441, "answer_score": null, "sibling_qid": "MUM-2026-03-0815-Q003", "sibling_text": "which function", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": false }, { "answer_id": "CHK-RM-001", "score": 0.5361014604568481, "sibling_score": 0.5361014604568481, "answer_score": null, "sibling_qid": "KOL-2025-05-3783-Q007", "sibling_text": "function of chock", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What are chocks? Function, types, where fitted and how placed — which have the biggest area, and how does the bedplate connect to the hull?", "cross_family": true }, { "answer_id": "CHK-330-001", "score": 0.5359825491905212, "sibling_score": 0.5359825491905212, "answer_score": null, "sibling_qid": "KOC-2022-05-1785-Q007", "sibling_text": "function of chock", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What is the purpose and function of main engine chocks?", "cross_family": true } ] }, { "qid": "MUM-2025-11-0560-Q007", "text": "ISM and certificates to carry out and audits .", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "MUM-2025-11-0560", "tray": "review", "candidates": [ { "answer_id": "ISM-AUDIT-P01-002", "score": 0.7477453947067261, "sibling_score": 0.7477453947067261, "answer_score": 0.48832415938377377, "sibling_qid": "CHE-2025-08-0038-Q003", "sibling_text": "ism audits certificates and intervals", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM/SMS audits and verifications — types, who conducts them, intervals and validity", "cross_family": false }, { "answer_id": "ISM-SMC-B-006", "score": 0.7398980259895325, "sibling_score": 0.7398980259895325, "answer_score": 0.556947261095047, "sibling_qid": "KOL-2026-02-1167-Q004", "sibling_text": "ism certificates who does audit and when 5", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM certificates and their audits — survey vs audit", "cross_family": false }, { "answer_id": "ISM-SMC-B-005", "score": 0.6964287757873535, "sibling_score": 0.6964287757873535, "answer_score": null, "sibling_qid": "KOL-2026-02-1188-Q003", "sibling_text": "ism all certificate and who give certificate for all and what type of audit done", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Obtaining the DOC and SMC — who issues, who audits", "cross_family": false } ] }, { "qid": "MUM-2025-11-0562-Q001", "text": "Type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-11-0562", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.837036669254303, "sibling_score": 0.837036669254303, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.801808774471283, "sibling_score": 0.801808774471283, "answer_score": 0.5473707109689713, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8005447387695312, "sibling_score": 0.8005447387695312, "answer_score": 0.5217237085103988, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2025-11-0562-Q004", "text": "Min requirements for life rafts as per solas", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Liferaft / HRU", "tid": "MUM-2025-11-0562", "tray": "review", "candidates": [ { "answer_id": "LRHR-A-001", "score": 0.7577186226844788, "sibling_score": 0.7577186226844788, "answer_score": null, "sibling_qid": "MUM-2026-05-3181-Q003", "sibling_text": "min requirements for life rafts as per solas", "sibling_family": "SOLAS - General (HOLD)", "via": "sibling", "answer_title": "SOLAS requirement for liferafts on a cargo ship — number and total capacity", "cross_family": true }, { "answer_id": "LRHR-B-001", "score": 0.7162325978279114, "sibling_score": 0.7162325978279114, "answer_score": 0.50300332903862, "sibling_qid": "CHE-2025-08-0039-Q013", "sibling_text": "life raft requirement as per solas", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What does SOLAS require for liferafts on a cargo ship — how many, what capacity, and the forward raft?", "cross_family": false }, { "answer_id": "LRHR-A-004", "score": 0.6695767045021057, "sibling_score": 0.6695767045021057, "answer_score": null, "sibling_qid": "KOL-2025-12-1139-Q005", "sibling_text": "as per solas life raft equipment only 4 qstn", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Liferaft equipment as per SOLAS — the A pack and the B pack", "cross_family": false } ] }, { "qid": "MUM-2025-11-0566-Q002", "text": "MLC titles explain title 2", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2025-11-0566", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.6632798314094543, "sibling_score": 0.6632798314094543, "answer_score": 0.23927769511938093, "sibling_qid": "KOC-2026-05-2135-Q011", "sibling_text": "mlc titles explain title 1 explain dmlc part 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "ISM-2E-A-001", "score": 0.43724310398101807, "sibling_score": 0.43724310398101807, "answer_score": null, "sibling_qid": "CHE-2026-04-0163-Q018", "sibling_text": "role of 2e in mlc and ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Roles, duties and responsibilities of a Second Engineer under ISM/SMS", "cross_family": true }, { "answer_id": "SOLAS-CH-003", "score": 0.43327897787094116, "sibling_score": 0.43327897787094116, "answer_score": null, "sibling_qid": "KOC-2025-05-2065-Q008", "sibling_text": "explain solas chapter 2 of 2", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS Chapter II-2 - fire protection, detection and extinction", "cross_family": true } ] }, { "qid": "MUM-2025-11-0566-Q003", "text": "What is DMLC part 1 and part 2", "family": "MLC", "subtopic": "MLC / DMLC / Work-Rest", "tid": "MUM-2025-11-0566", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.6668037176132202, "sibling_score": 0.6668037176132202, "answer_score": 0.30363365113735197, "sibling_qid": "MUM-2026-05-3314-Q007", "sibling_text": "dmlc part 1 and part 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "ISM-ELEM-003", "score": 0.22923470735549925, "sibling_score": null, "answer_score": 0.22923470735549925, "sibling_qid": "", "sibling_text": "elements chapters structure of the ism code part a implementation the 12 elements 1 general 1 1 definitions 1 2 objectives 1 3 application 1 4 functional requirements for an sms", "sibling_family": "", "via": "answer_title", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": false }, { "answer_id": "GMCM-583-A-002", "score": 0.20812070965766907, "sibling_score": null, "answer_score": 0.20812070965766907, "sibling_qid": "", "sibling_text": "02 the multimeter construction internal circuit and how one instrument reads several different parameters one movement or one adc plus switched signal conditioning networks that is the whole idea dc volts series multipliers ac volts rectifier plus multipliers", "sibling_family": "", "via": "answer_title", "answer_title": "02. The multimeter — construction, internal circuit, and how one instrument reads several different parameters", "cross_family": false } ] }, { "qid": "MUM-2025-11-0566-Q004", "text": "Class notation", "family": "Surveys - Statutory", "subtopic": "Condition of Class", "tid": "MUM-2025-11-0566", "tray": "review", "candidates": [ { "answer_id": "CN-576-001", "score": 0.864146888256073, "sibling_score": 0.864146888256073, "answer_score": 0.37703122198581696, "sibling_qid": "MUM-2026-06-3584-Q002", "sibling_text": "class notation", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What are the class notations of the vessel?", "cross_family": false }, { "answer_id": "CLASS-NOT-001", "score": 0.8639786243438721, "sibling_score": 0.8639786243438721, "answer_score": 0.40313582122325897, "sibling_qid": "KOC-2025-10-0684-Q005", "sibling_text": "class notation", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is class notation, and how would you explain the notation written for your ship?", "cross_family": false }, { "answer_id": "CN-576-002", "score": 0.3758821129798889, "sibling_score": null, "answer_score": 0.3758821129798889, "sibling_qid": "", "sibling_text": "what is meant by class assignment and class notation class assignment the society s act of entering the ship into class after plan approval and construction or entry survey confirm she complies with its rules on assignment the society issues the certificate of class and enters her in its register", "sibling_family": "", "via": "answer_title", "answer_title": "What is meant by class assignment and class notation?", "cross_family": false } ] }, { "qid": "MUM-2025-11-0566-Q006", "text": "What is margin line", "family": "SOLAS", "subtopic": "Margin Line / Subdivision", "tid": "MUM-2025-11-0566", "tray": "review", "candidates": [ { "answer_id": "MARGIN-LINE-001", "score": 0.678268551826477, "sibling_score": 0.678268551826477, "answer_score": 0.43171236515045164, "sibling_qid": "KOC-2026-08-2118-Q008", "sibling_text": "margin line explain", "sibling_family": "Ship Construction & Naval Architecture", "via": "sibling", "answer_title": "What is the margin line, and what is its purpose?", "cross_family": true }, { "answer_id": "MARGIN-LINE-002", "score": 0.4462545394897461, "sibling_score": null, "answer_score": 0.4462545394897461, "sibling_qid": "", "sibling_text": "why is the margin line imaginary and not permanently marked it is adesign calculation referenceused in subdivision and damage stability work not an operational limit the crew operate to themarkedlines deck line plimsoll load line marks draught marks intact loading", "sibling_family": "", "via": "answer_title", "answer_title": "Why is the margin line imaginary, and not permanently marked?", "cross_family": false }, { "answer_id": "MARGIN-LINE-006", "score": 0.4157728791236877, "sibling_score": null, "answer_score": 0.4157728791236877, "sibling_qid": "", "sibling_text": "handling ambiguous or compound prompts margin line bare prompts imaginary line marpol line a mishearing of margin line almost always mean the margin line declarethe reading answer andoffer to redirect core fact to deliver 76 mm below the bulkhead deck at side damaged condition limit waterline unmarked calculation line", "sibling_family": "", "via": "answer_title", "answer_title": "Handling ambiguous or compound prompts (margin line)", "cross_family": false } ] }, { "qid": "MUM-2025-11-0566-Q009", "text": "Draw rudder carrier bearing material of thrust ring Electrical", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "MUM-2025-11-0566", "tray": "review", "candidates": [ { "answer_id": "TRS-002", "score": 0.6551512479782104, "sibling_score": 0.6551512479782104, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "PRE-TEN-001", "score": 0.6333020329475403, "sibling_score": 0.6333020329475403, "answer_score": null, "sibling_qid": "MUM-2026-06-3504-Q007", "sibling_text": "rudder carrier bearing removal procedure", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Pre-stressing and pre-tensioning in main-engine bolting", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.604434072971344, "sibling_score": 0.604434072971344, "answer_score": null, "sibling_qid": "CHE-2026-02-0110-Q006", "sibling_text": "how rudder weight is carried key ans i said carrier bearing how it carrying explain", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false } ] }, { "qid": "MUM-2025-11-0566-Q012", "text": "Draw 3 point starter of DC motor", "family": "Electrical - Motors & Starters", "subtopic": "DC Motor Three-Point Starter", "tid": "MUM-2025-11-0566", "tray": "review", "candidates": [ { "answer_id": "SDST-A-001", "score": 0.7798309922218323, "sibling_score": 0.7798309922218323, "answer_score": 0.5274498999118805, "sibling_qid": "KOC-2026-05-2140-Q008", "sibling_text": "draw and explain 3 point starter for dc motor and star delta", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false }, { "answer_id": "TG-MOTOR-005", "score": 0.5295715034008026, "sibling_score": null, "answer_score": 0.5295715034008026, "sibling_qid": "", "sibling_text": "draw the turning gear circuit diagram and explain the starter power side supply isolator and fuses mcb fwd and rev contactors rev has two phases crossed overload relay motor control side stop plus fwd rev push buttons feeding the two coils", "sibling_family": "", "via": "answer_title", "answer_title": "Draw the turning gear circuit diagram and explain the starter.", "cross_family": false }, { "answer_id": "SDC-005", "score": 0.5170822322368621, "sibling_score": null, "answer_score": 0.5170822322368621, "sibling_qid": "", "sibling_text": "draw the delta connection three windings joined end to start in a closed loop a triangle line leads r y b taken from the three corners junctions", "sibling_family": "", "via": "answer_title", "answer_title": "Draw the delta connection", "cross_family": false } ] }, { "qid": "MUM-2025-11-0566-Q015", "text": "Gangway motor slipping electrical reasons( he is not accepting single phasing) Internal:", "family": "Electrical - Motors & Starters", "subtopic": "Single Phasing", "tid": "MUM-2025-11-0566", "tray": "review", "candidates": [ { "answer_id": "MNS-006", "score": 0.7210519909858704, "sibling_score": 0.7210519909858704, "answer_score": null, "sibling_qid": "KOC-2026-08-2123-Q002", "sibling_text": "gangway motor slipping reasons", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Gangway motor slipping — the brake is not holding", "cross_family": false }, { "answer_id": "MNS-009", "score": 0.7168840169906616, "sibling_score": 0.7168840169906616, "answer_score": null, "sibling_qid": "KOC-2025-10-1597-Q004", "sibling_text": "gangway motor tripping electrical reasons", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Motor trips on starting, or immediately after — electrical reasons and your checks", "cross_family": false }, { "answer_id": "MNS-004", "score": 0.7119900584220886, "sibling_score": 0.7119900584220886, "answer_score": null, "sibling_qid": "KOC-2024-04-1344-Q003", "sibling_text": "gangway motor frequent starting stopping electrical reasons", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Motor starts and then stops, again and again — frequent start/stop cycling on a gangway motor", "cross_family": false } ] }, { "qid": "MUM-2025-11-0568-Q001", "text": "What is cow", "family": "MARPOL - Annex I (Oil)", "subtopic": "COW / Crude Oil Wash", "tid": "MUM-2025-11-0568", "tray": "review", "candidates": [ { "answer_id": "COW-593-005", "score": 0.6581823229789734, "sibling_score": 0.6581823229789734, "answer_score": null, "sibling_qid": "KOL-2025-01-1796-Q001", "sibling_text": "cow advantage why cow from when cow type of cow", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Why do we crude oil wash, and what are its advantages?", "cross_family": false }, { "answer_id": "COW-593-006", "score": 0.6464242935180664, "sibling_score": 0.6464242935180664, "answer_score": null, "sibling_qid": "MUM-2021-01-0008-Q003", "sibling_text": "cow methods", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", 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"ISPS-OV-001", "score": 0.7481171488761902, "sibling_score": 0.7481171488761902, "answer_score": 0.3998693898320198, "sibling_qid": "MUM-2025-09-0453-Q001", "sibling_text": "isps code in detail", "sibling_family": "ISPS", "via": "sibling", "answer_title": "ISPS Code: what it is, structure and key elements", "cross_family": false }, { "answer_id": "ISPS-SL-002", "score": 0.7289103865623474, "sibling_score": 0.7289103865623474, "answer_score": null, "sibling_qid": "KOL-2022-10-0689-Q046", "sibling_text": "isps code elements in this code describe", "sibling_family": "ISPS", "via": "sibling", "answer_title": "Elements, contents, functional requirements, training and equipment", "cross_family": false } ] }, { "qid": "MUM-2025-11-0569-Q003", "text": "ISM code", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "MUM-2025-11-0569", "tray": "review", "candidates": [ { "answer_id": "ISM-ELEM-002", "score": 0.7950465083122253, "sibling_score": 0.7950465083122253, "answer_score": 0.41596413552761075, "sibling_qid": "MUM-2026-06-3653-Q001", "sibling_text": "ism code", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the ISM Code?", "cross_family": false }, { "answer_id": "ISM-ELEM-003", "score": 0.41518814116716385, "sibling_score": null, "answer_score": 0.41518814116716385, "sibling_qid": "", "sibling_text": "elements chapters structure of the ism code part a implementation the 12 elements 1 general 1 1 definitions 1 2 objectives 1 3 application 1 4 functional requirements for an sms", "sibling_family": "", "via": "answer_title", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": false }, { "answer_id": "ISM-AUD-P02-002", "score": 0.38849497884511947, "sibling_score": null, "answer_score": 0.38849497884511947, "sibling_qid": "", "sibling_text": "ism code what it is purpose objectives and structure full name carries both limbs safe operation of ships and pollution prevention never drop the 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"KOL-2022-07-1693-Q006", "sibling_text": "if cam is slipped by 2 then what will be the consequences and how will u get to know", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel cam lead, cam profile, negative cam and cam slip", "cross_family": true }, { "answer_id": "ISMNC-002", "score": 0.45331302285194397, "sibling_score": 0.45331302285194397, "answer_score": null, "sibling_qid": "MUM-2022-10-0063-Q008", "sibling_text": "1 what is major non confirmity and cross questions", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a major non-conformity under the ISM Code? 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when", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.5399385690689087, "sibling_score": 0.5399385690689087, "answer_score": null, "sibling_qid": "MUM-2026-05-2995-Q001", "sibling_text": "written and oral status type of ship and company", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": true }, { "answer_id": "AE-CRP-005", "score": 0.4279274642467499, "sibling_score": 0.4279274642467499, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q001", "sibling_text": "type of vessel engine make written and oral status", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": true } ] }, { "qid": "MUM-2025-11-0570-Q003", "text": "Total sea time after class 4th, company and training institutes?", "family": "Status & Introduction", "subtopic": "Experience Related 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"answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.5160883665084839, "sibling_score": 0.5160883665084839, "answer_score": null, "sibling_qid": "MUM-2026-05-3248-Q001", "sibling_text": "introduction sea time company pre sea ship type engine type me", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "MUM-2025-11-0570-Q009", "text": "Risk assessment?", "family": "Risk & Safety Management", "subtopic": "Enclosed Space Entry", "tid": "MUM-2025-11-0570", "tray": "review", "candidates": [ { "answer_id": "RA-MGMT-B-001", "score": 0.7983691096305847, "sibling_score": 0.7983691096305847, "answer_score": null, "sibling_qid": "KOL-2022-09-3563-Q003", "sibling_text": "risc assessment", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "How is a 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"cross_family": false } ] }, { "qid": "MUM-2025-11-0571-Q003", "text": "Compliance of Seafarer- I dnt knw", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2025-11-0571", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-011", "score": 0.5604517459869385, "sibling_score": 0.5604517459869385, "answer_score": 0.4432087242603302, "sibling_qid": "MUM-2026-04-0914-Q007", "sibling_text": "what is the complaint procedure onboard for seafarer", "sibling_family": "MLC", "via": "sibling", "answer_title": "The on-board complaint and grievance procedure", "cross_family": false }, { "answer_id": "STCW-MAN-006", "score": 0.5572807192802429, "sibling_score": 0.5572807192802429, "answer_score": null, "sibling_qid": "KOL-2021-08-0546-Q002", "sibling_text": "categories of seafarers as per stcw he was too much angry about the coc attempt i don t why he said very low level thinking i was totally blank in both questions then he said mitra sir to start", "sibling_family": "Other 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fast", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "2. 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Name the important chapters.", "cross_family": true } ] }, { "qid": "MUM-2025-11-0575-Q001", "text": "Solas chapter -8", "family": "SOLAS - General (HOLD)", "subtopic": "Solas Chapters Overview", "tid": "MUM-2025-11-0575", "tray": "review", "candidates": [ { "answer_id": "SOLAS-OVW-009", "score": 0.6742392182350159, "sibling_score": 0.6742392182350159, "answer_score": null, "sibling_qid": "MUM-2026-06-3562-Q003", "sibling_text": "solas chapter 8", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "SOLAS Chapter IX — ISM Code (safe operation)", "cross_family": true }, { "answer_id": "SOLAS-CH-015", "score": 0.6539304852485657, "sibling_score": 0.6539304852485657, "answer_score": 0.3409649759531021, "sibling_qid": "MUM-2026-02-0752-Q007", "sibling_text": "solas all chapters 8 3 4 more", "sibling_family": "SOLAS - General (HOLD)", "via": "sibling", "answer_title": "SOLAS chapters overview - current count and scope", "cross_family": false }, { "answer_id": "SOLAS-OVW-008", "score": 0.6455265879631042, "sibling_score": 0.6455265879631042, "answer_score": null, "sibling_qid": "MUM-2026-04-0915-Q004", "sibling_text": "solas chapter 7 8", "sibling_family": "SOLAS - General (HOLD)", "via": "sibling", "answer_title": "SOLAS Chapter VII — carriage of dangerous goods", "cross_family": false } ] }, { "qid": "MUM-2025-11-0579-Q001S3", "text": "CII? GIF relation with CII ?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Quality / CCAI", "tid": "MUM-2025-11-0579", "tray": "new", "candidates": [ { "answer_id": "GFI-572-003", "score": 0.5574743747711182, "sibling_score": 0.5574743747711182, "answer_score": 0.29280418157577515, "sibling_qid": "KOL-2026-02-1166-Q007", "sibling_text": "relation between cii and gfi", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Relation between CII and GFI", "cross_family": true }, { "answer_id": "CII-P01-001", "score": 0.4023860692977905, "sibling_score": 0.4023860692977905, "answer_score": null, "sibling_qid": "MUM-2026-01-0722-Q010", "sibling_text": "explain cii", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is CII and what is its purpose?", "cross_family": true }, { "answer_id": "EECS-002", "score": 0.4016263484954834, "sibling_score": 0.4016263484954834, "answer_score": null, "sibling_qid": "CHE-2026-09-3905-Q002", "sibling_text": "eexi and cii only differences", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "02. Differentiate EEXI and CII", "cross_family": true } ] }, { "qid": "MUM-2025-11-0579-Q001S4", "text": "Statutory certificate ?", "family": "", "subtopic": "", "tid": "MUM-2025-11-0579", "tray": "review", "candidates": [ { "answer_id": "CERT-LIST-P01-001", "score": 0.7697368860244751, "sibling_score": 0.7697368860244751, "answer_score": null, "sibling_qid": "KOC-2024-11-0475-Q007", "sibling_text": "statutory certificate said all", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "List the statutory certificates carried onboard a ship.", "cross_family": false }, { "answer_id": "CERT-LIST-P03-004", "score": 0.5221635222434997, "sibling_score": null, "answer_score": 0.5221635222434997, "sibling_qid": "", "sibling_text": "statutory certificates surveys validity stability booklet", "sibling_family": "", "via": "answer_title", "answer_title": "Statutory certificates, surveys & validity (+ stability booklet)", "cross_family": false }, { "answer_id": "SURV-ANNIV-001", "score": 0.44684021472930907, "sibling_score": null, "answer_score": 0.44684021472930907, "sibling_qid": "", "sibling_text": "what is the anniversary date of a statutory certificate day and month of each year matching the certificate s expiry date not the issue or initial survey date definition is convention text and common to the harmonised solas load line marpol certificates", "sibling_family": "", "via": "answer_title", "answer_title": "What is the anniversary date of a statutory certificate?", "cross_family": false } ] }, { "qid": "MUM-2025-11-0580-Q003", "text": "Annex 3 of marpol", "family": "MARPOL - Annex III", "subtopic": "Harmful Substances in Packaged Form", "tid": "MUM-2025-11-0580", "tray": "review", "candidates": [ { "answer_id": "SEW-DISCH-004", "score": 0.7606891989707947, "sibling_score": 0.7606891989707947, "answer_score": null, "sibling_qid": "MUM-2026-04-0915-Q003", "sibling_text": "annex 3 of marpol", "sibling_family": "MARPOL - Annex III", "via": "sibling", "answer_title": "4. Annex IV requirements, equipment, documents and recent amendments", "cross_family": false }, { "answer_id": "MARPOL-OV-003", "score": 0.6760562658309937, "sibling_score": 0.6760562658309937, "answer_score": 0.5221469551324844, "sibling_qid": "MUM-2026-09-3916-Q003", "sibling_text": "marpol annexes all", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "General overview of MARPOL and all annexes", "cross_family": true }, { "answer_id": "AVICERT-006", "score": 0.6665056347846985, "sibling_score": 0.6665056347846985, "answer_score": null, "sibling_qid": "KOC-2026-09-2168-Q012", "sibling_text": "marpol annex 3 certificate name internal ques", "sibling_family": "MARPOL - Annex III", "via": "sibling", "answer_title": "What certificates are carried on board under all the MARPOL annexes, Annex I to Annex VI?", "cross_family": false } ] }, { "qid": "MUM-2025-11-0580-Q004", "text": "Solas chapter 7,8", "family": "SOLAS - General (HOLD)", "subtopic": "Solas Chapters Overview", "tid": "MUM-2025-11-0580", "tray": "review", "candidates": [ { "answer_id": "SOLAS-OVW-008", "score": 0.7164558172225952, "sibling_score": 0.7164558172225952, "answer_score": null, "sibling_qid": "MUM-2026-04-0915-Q004", "sibling_text": "solas chapter 7 8", "sibling_family": "SOLAS - General (HOLD)", "via": "sibling", "answer_title": "SOLAS Chapter VII — carriage of dangerous goods", "cross_family": false }, { "answer_id": "SOLAS-CH-015", "score": 0.6200894713401794, "sibling_score": 0.6200894713401794, "answer_score": 0.34502092897891995, "sibling_qid": "MUM-2026-02-0752-Q007", "sibling_text": "solas all chapters 8 3 4 more", "sibling_family": "SOLAS - General (HOLD)", "via": "sibling", "answer_title": "SOLAS chapters overview - current count and scope", "cross_family": false }, { "answer_id": "SOLAS-OVW-009", "score": 0.61625075340271, "sibling_score": 0.61625075340271, "answer_score": null, "sibling_qid": "MUM-2026-06-3562-Q003", "sibling_text": "solas chapter 8", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "SOLAS Chapter IX — ISM Code (safe operation)", "cross_family": true } ] }, { "qid": "MUM-2025-11-0580-Q005", "text": "Mlc title", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2025-11-0580", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.6172645092010498, "sibling_score": 0.6172645092010498, "answer_score": 0.2753253474831581, "sibling_qid": "KOC-2026-05-2135-Q011", "sibling_text": "mlc titles explain title 1 explain dmlc part 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "MLC-WRH-B-006", "score": 0.5384385585784912, "sibling_score": 0.5384385585784912, "answer_score": null, "sibling_qid": "MUM-2026-07-3680-Q005", "sibling_text": "what is mlc certificate under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false }, { "answer_id": "MLC-WRH-B-007", "score": 0.47386541962623596, "sibling_score": 0.47386541962623596, "answer_score": null, "sibling_qid": "MUM-2026-01-0701-Q002", "sibling_text": "detainable deficiency of mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false } ] }, { "qid": "MUM-2025-11-0581-Q003", "text": "MLC 2006, Who sets wages and who are the parties in it,what is CBA", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2025-11-0581", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-010", "score": 0.5711089968681335, "sibling_score": 0.5711089968681335, "answer_score": 0.37185215055942533, "sibling_qid": "MUM-2025-11-0573-Q004", "sibling_text": "how are wages set under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "SEA, the CBA parties, and how wages are set — action on non-payment", "cross_family": false }, { "answer_id": "MLC-WRH-B-002", "score": 0.5123054385185242, "sibling_score": 0.5123054385185242, "answer_score": 0.2166345328092575, "sibling_qid": "MUM-2022-07-0027-Q005", "sibling_text": "mlc 2006 wages rest hours", "sibling_family": "MLC", "via": "sibling", "answer_title": "Work and rest hours under MLC — the criteria, the weekly limit, the intervals", "cross_family": false }, { "answer_id": "MLC-WRH-B-011", "score": 0.36875954270362854, "sibling_score": 0.36875954270362854, "answer_score": null, "sibling_qid": "CHE-2026-05-0637-Q002", "sibling_text": "mlc grievance system", "sibling_family": "MLC", "via": "sibling", "answer_title": "The on-board complaint and grievance procedure", "cross_family": false } ] }, { "qid": "MUM-2025-11-0581-Q007", "text": "Construction of aft peak tank", "family": "", "subtopic": "Peak Tank Construction", "tid": "MUM-2025-11-0581", "tray": "new", "candidates": [ { "answer_id": "PPS-230-006", "score": 0.6488351225852966, "sibling_score": 0.6488351225852966, "answer_score": null, "sibling_qid": "MUM-2026-08-3829-Q005", "sibling_text": "forepeak tank construction", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Fore-end / fore-peak structure: draw and describe", "cross_family": false }, { "answer_id": "BCFS-002", "score": 0.5299375653266907, "sibling_score": 0.5299375653266907, "answer_score": null, "sibling_qid": "MUM-2024-09-1093-Q003", "sibling_text": "cascade tank construction", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "The cascade tank — purpose, location, construction, temperature control and abnormal steaming", "cross_family": false }, { "answer_id": "BSBH-420-002", "score": 0.5278325080871582, "sibling_score": 0.5278325080871582, "answer_score": 0.4636873960494995, "sibling_qid": "KOC-2024-05-0347-Q005", "sibling_text": "forepeak construction", "sibling_family": "", "via": "sibling", "answer_title": "Fore-end / forepeak construction forward of the collision bulkhead — members and cross-section", "cross_family": false } ] }, { "qid": "MUM-2025-11-0583-Q001", "text": "risk assessment", "family": "Risk & Safety Management", "subtopic": "Enclosed Space Entry", "tid": "MUM-2025-11-0583", "tray": "review", "candidates": [ { "answer_id": "RA-MGMT-B-001", "score": 0.7983691096305847, "sibling_score": 0.7983691096305847, "answer_score": null, "sibling_qid": "KOL-2022-09-3563-Q003", "sibling_text": "risc assessment", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "How is a shipboard risk assessment prepared and carried out?", "cross_family": false }, { "answer_id": "RA-MGMT-A-001", "score": 0.7896564602851868, "sibling_score": 0.7896564602851868, "answer_score": 0.5665339946746826, "sibling_qid": "MUM-2026-08-3829-Q002", "sibling_text": "risk assessment", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "What is risk, what is hazard, and what is risk assessment?", "cross_family": false }, { "answer_id": "LVC-577-001", "score": 0.5822413384914398, "sibling_score": null, "answer_score": 0.5822413384914398, "sibling_qid": "", "sibling_text": "define likelihood and consequence in risk assessment risk has two elements likelihood and consequence the matrix rating commonly combines them by multiplying where the sms uses that method likelihood the chance probability the harm occurs how likely how often", "sibling_family": "", "via": "answer_title", "answer_title": "Define likelihood and consequence in risk assessment", "cross_family": false } ] }, { "qid": "MUM-2025-11-0583-Q003", "text": "isps in details ,what is level 2 security level,can we receive assignment in security level 2", "family": "ISPS", "subtopic": "ISPS Overview", "tid": "MUM-2025-11-0583", "tray": "review", "candidates": [ { "answer_id": "ISPS-SL-003", "score": 0.6865984797477722, "sibling_score": 0.6865984797477722, "answer_score": 0.45214148759841916, "sibling_qid": "MUM-2024-10-0214-Q005", "sibling_text": "isps code security level 2", "sibling_family": "ISPS", "via": "sibling", "answer_title": "Security levels — who sets them, ship vs port, level 2 vs 3", "cross_family": false }, { "answer_id": "ISPS-SL-004", "score": 0.6627305746078491, "sibling_score": 0.6627305746078491, "answer_score": 0.44389805793762205, "sibling_qid": "MUM-2022-12-0073-Q002", "sibling_text": "isps security level 2 package acceptance", "sibling_family": "ISPS", "via": "sibling", "answer_title": "Accepting stores, packages and consignments at security level 2", "cross_family": false }, { "answer_id": "ISPS-SL-002", "score": 0.596317708492279, "sibling_score": 0.596317708492279, "answer_score": null, "sibling_qid": "MUM-2026-08-3835-Q002", "sibling_text": "isps types of security level", "sibling_family": "ISPS", "via": "sibling", "answer_title": "Elements, contents, functional requirements, training and equipment", "cross_family": false } ] }, { "qid": "MUM-2025-11-0587-Q001", "text": "Detainable deficiency as per MARPOL", "family": "Surveys - Statutory", "subtopic": "Detention / Clear Ground", "tid": "MUM-2025-11-0587", "tray": "new", "candidates": [ { "answer_id": "DCG-002", "score": 0.6492717266082764, "sibling_score": 0.6492717266082764, "answer_score": 0.5422746777534485, "sibling_qid": "KOL-2025-04-0931-Q013", "sibling_text": "example for detainable deficiency", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What are the reasons for PSC detention and what is a detainable deficiency? Which engine-room deficiencies can detain your ship, which conventions can ground a detainable deficiency, and what is banning by PSC?", "cross_family": false }, { "answer_id": "MLC-WRH-B-007", "score": 0.6388265490531921, "sibling_score": 0.6388265490531921, "answer_score": null, "sibling_qid": "MUM-2026-02-0732-Q001", "sibling_text": "detainable deficiency as per mic", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": true }, { "answer_id": "SURV-GEN-004", "score": 0.6219508051872253, "sibling_score": 0.6219508051872253, "answer_score": null, "sibling_qid": "KOL-2021-02-0473-Q002", "sibling_text": "marpol additional surveys", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Additional / non-periodical survey", "cross_family": false } ] }, { "qid": "MUM-2025-11-0587-Q004", "text": "MARPOL annex 4", "family": "MARPOL - Annex I (Oil)", "subtopic": "Oil Discharge Criteria", "tid": "MUM-2025-11-0587", "tray": "review", "candidates": [ { "answer_id": "SEW-DISCH-004", "score": 0.738092303276062, "sibling_score": 0.738092303276062, "answer_score": null, "sibling_qid": "KOL-2023-05-0747-Q004", "sibling_text": "4 marpol annex 4", "sibling_family": "MARPOL - Annex IV (Sewage)", "via": "sibling", "answer_title": "4. Annex IV requirements, equipment, documents and recent amendments", "cross_family": true }, { "answer_id": "MARPOL-OV-003", "score": 0.727828323841095, "sibling_score": 0.727828323841095, "answer_score": null, "sibling_qid": "MUM-2026-09-3916-Q003", "sibling_text": "marpol annexes all", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "General overview of MARPOL and all annexes", "cross_family": false }, { "answer_id": "GARB-261-001", "score": 0.7254081964492798, "sibling_score": 0.7254081964492798, "answer_score": null, "sibling_qid": "KOL-2017-07-0101-Q004", "sibling_text": "4 marpol annex 5", "sibling_family": "MARPOL - Annex V (Garbage)", "via": "sibling", "answer_title": "MARPOL Annex V — scope, definitions and the garbage categories", "cross_family": true } ] }, { "qid": "MUM-2025-11-0587-Q005", "text": "Cargo securing manual", "family": "Cargo Ops - Bulk Carriers", "subtopic": "IMSBC / Grain / BLU Code", "tid": "MUM-2025-11-0587", "tray": "review", "candidates": [ { "answer_id": "TNK-SAFE-BF26-002", "score": 0.661547839641571, "sibling_score": 0.661547839641571, "answer_score": null, "sibling_qid": "MUM-2026-03-0858-Q002", "sibling_text": "safeties in cargo containment", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "What safeties are provided on the cargo tanks of an oil, crude or chemical tanker?", "cross_family": false }, { "answer_id": "BC-IMSBC-007", "score": 0.6478317975997925, "sibling_score": 0.6478317975997925, "answer_score": null, "sibling_qid": "KOC-2022-01-1163-Q016", "sibling_text": "precautions to carry type a cargo", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "7. Group A cargo — precautions and the moisture test", "cross_family": false }, { "answer_id": "STAB-D-004", "score": 0.6427956223487854, "sibling_score": 0.6427956223487854, "answer_score": null, "sibling_qid": "MUM-2026-06-3412-Q006", "sibling_text": "how to load cargo and how stability is maintained", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Ship Stability Basics - Equilibrium States, Factors, and Motions", "cross_family": false } ] }, { "qid": "MUM-2025-11-0588-Q008", "text": "Ship owners liability as per MLC", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2025-11-0588", "tray": "review", "candidates": [ { "answer_id": "CLC-CIV-B-003", "score": 0.7558571100234985, "sibling_score": 0.7558571100234985, "answer_score": 0.43783814311027525, "sibling_qid": "MUM-2026-04-0880-Q004", "sibling_text": "mlc what is shipowner liability", "sibling_family": "MLC", "via": "sibling", "answer_title": "LLMC: purpose, scope and limitation of maritime claims", "cross_family": false }, { "answer_id": "MLC-WRH-B-009", "score": 0.6250845789909363, "sibling_score": 0.6250845789909363, "answer_score": null, "sibling_qid": "CHE-2025-08-0426-Q009", "sibling_text": "ship owner abandoned the ship what will you do as per mlc i told financial security certificate for repartation", "sibling_family": "MLC", "via": "sibling", "answer_title": "Abandonment — financial security and repatriation", "cross_family": false }, { "answer_id": "CLC-CIV-A-001", "score": 0.5339744031429291, "sibling_score": 0.48311716318130493, "answer_score": 0.5339744031429291, "sibling_qid": "KOL-2018-08-0202-Q002", "sibling_text": "safety fn 3 banerjee and rao specialties of tanker freeboard permeability and lot of crossq s safety in p p room lot of cross q s charter s party what is clc what is unstable ship lot of cross qs", "sibling_family": "Other Conventions", "via": "answer_title", "answer_title": "CLC Convention — objective, scope and shipowner liability", "cross_family": true } ] }, { "qid": "MUM-2025-11-0590-Q001", "text": "Marpol Annex -1", "family": "MARPOL - Annex I (Oil)", "subtopic": "IOPP", "tid": "MUM-2025-11-0590", "tray": "review", "candidates": [ { "answer_id": "IOPP-191-005", "score": 0.7503028512001038, "sibling_score": 0.7503028512001038, "answer_score": null, "sibling_qid": "CHE-2026-04-0147-Q005", "sibling_text": "marpol annex 1 documents", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "MARPOL Annex I certificates and documents for IOPP / OWS / PSC preparation", "cross_family": false }, { "answer_id": "MARPOL-OV-003", "score": 0.7474557757377625, "sibling_score": 0.7474557757377625, "answer_score": 0.5119847297668457, "sibling_qid": "MUM-2026-09-3916-Q003", "sibling_text": "marpol annexes all", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "General overview of MARPOL and all annexes", "cross_family": false }, { "answer_id": "ODC-004", "score": 0.7337903380393982, "sibling_score": 0.7337903380393982, "answer_score": null, "sibling_qid": "CHE-2026-03-0127-Q009", "sibling_text": "what marpol annex 1 regulation 14", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Regulation 14 — oil filtering equipment: 400 GT, 10,000 GT and what each must have", "cross_family": false } ] }, { "qid": "MUM-2025-11-0590-Q005", "text": "Bonjean curve.", "family": "Ship Construction & Stability", "subtopic": "", "tid": "MUM-2025-11-0590", "tray": "new", "candidates": [ { "answer_id": "HYD-BONJ-002", "score": 0.649536669254303, "sibling_score": 0.649536669254303, "answer_score": 0.3935951918363571, "sibling_qid": "MUM-2026-06-3540-Q011", "sibling_text": "bonjean curve", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Bonjean curves — what they are and what they are for", "cross_family": false }, { "answer_id": "LOLL-P02-004", "score": 0.29543052464723585, "sibling_score": null, "answer_score": 0.29543052464723585, "sibling_qid": "", "sibling_text": "3 angle of loll on the gz curve the gm condition initial slope of the gz curve at the origin gm negative gm means the curve dips below the axis first tangent at the origin taken to 57 3 1 radian reads gm on the vertical here it reads negative", "sibling_family": "", "via": "answer_title", "answer_title": "3. 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What is a Recognized Organization, how is it recognized by a flag State, and how can a classification society become one?", "cross_family": false } ] }, { "qid": "MUM-2025-11-0602-Q002", "text": "■solas ch 13 and ch 15", "family": "SOLAS - General (HOLD)", "subtopic": "Solas Chapters Overview", "tid": "MUM-2025-11-0602", "tray": "new", "candidates": [ { "answer_id": "SOLAS-OVW-012", "score": 0.5461947917938232, "sibling_score": 0.5461947917938232, "answer_score": null, "sibling_qid": "KOL-2025-07-0989-Q014", "sibling_text": "solas chapter 15 and 16", "sibling_family": "", "via": "sibling", "answer_title": "SOLAS Chapter XV and the newest chapters", "cross_family": false }, { "answer_id": "SOLAS-OVW-002", "score": 0.5446074604988098, "sibling_score": 0.5446074604988098, "answer_score": null, "sibling_qid": "KOC-2021-11-0036-Q002", "sibling_text": "solas chapter 13 details", "sibling_family": "", "via": "sibling", "answer_title": "SOLAS Chapter XIII — verification of compliance (III Code / IMSAS)", "cross_family": false }, { "answer_id": "SOLAS12-C-001", "score": 0.5416349172592163, "sibling_score": 0.5416349172592163, "answer_score": null, "sibling_qid": "KOL-2019-12-0361-Q003", "sibling_text": "solas chapter 12 13", "sibling_family": "", "via": "sibling", "answer_title": "Explain SOLAS Chapter XII for bulk carriers — oral-exam overview", "cross_family": false } ] }, { "qid": "MUM-2025-11-0605-Q006", "text": "UVT coil working", "family": "Electrical - Protection & Relays", "subtopic": "Undervoltage Trip / UVT Coil", "tid": "MUM-2025-11-0605", "tray": "review", "candidates": [ { "answer_id": "OC-UV-TRIP-001", "score": 0.6966185569763184, "sibling_score": 0.6966185569763184, "answer_score": 0.35623493790626526, "sibling_qid": "MUM-2026-01-1905-Q001S2", "sibling_text": "uvt coil", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Under-voltage trip / no-volt coil — purpose, working, onboard test and calibration", "cross_family": false }, { "answer_id": "HV-SYS-P05-002", "score": 0.5209190845489502, "sibling_score": 0.5209190845489502, "answer_score": null, "sibling_qid": "MUM-2026-03-2026-Q001", "sibling_text": "what is bonding what is uvt coil how you work on hv system waiting in lobby", "sibling_family": "", "via": "sibling", "answer_title": "Working on the HV system: precautions, isolation and earthing before maintenance", "cross_family": false }, { "answer_id": "FSH-DET-003", "score": 0.47804519534111023, "sibling_score": 0.47804519534111023, "answer_score": 0.3548139661550522, "sibling_qid": "KOC-2023-08-1274-Q002", "sibling_text": "uv flame detector it s working", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Working principle of UV / flame detectors", "cross_family": true } ] }, { "qid": "MUM-2025-11-0606-Q002", "text": "Ig and copt alarms and trips", "family": "Tanker - Cargo Systems", "subtopic": "IG and COPT Alarms / Trips", "tid": "MUM-2025-11-0606", "tray": "review", "candidates": [ { "answer_id": "IGAT-583-001", "score": 0.6586631536483765, "sibling_score": 0.6586631536483765, "answer_score": 0.43737679719924927, "sibling_qid": "KOL-2025-08-1016-Q005", "sibling_text": "ig working alarm trips", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "State all the alarms, trips and safety cut-outs provided on a tanker inert gas (IG) system.", "cross_family": true }, { "answer_id": "MR-DS-PV-B-003", "score": 0.42311902493238446, "sibling_score": null, "answer_score": 0.42311902493238446, "sibling_qid": "", "sibling_text": "3 alarms trips valves and abnormal conditions of the deck seal key seal alarm low water level audible and visual fss requirement any low low trip interlock of gas delivery is maker ship sms logic and should be quoted from the approved ig manual a low seal a lost first barrier pressure oxygen instrumentation when ig is being supplied continuously indicate and permanently record the pressure of the ", "sibling_family": "", "via": "answer_title", "answer_title": "3. Alarms, trips, valves, and abnormal conditions of the deck seal", "cross_family": false }, { "answer_id": "BLR-ALM-001", "score": 0.4159481257200241, "sibling_score": null, "answer_score": 0.4159481257200241, "sibling_qid": "", "sibling_text": "boiler alarms and trips list the alarms and trips on an auxiliary boiler panel a trip cuts the fuel and stops firing an alarm only warns know which is which solas ii 1 32 2 implemented for indian ships by the dgs cargo ship construction survey rules 1991 unattended oil fired boiler fuel shut off alarm at an attended position on low water level combustion air supply failure flame failure", "sibling_family": "", "via": "answer_title", "answer_title": "Boiler alarms and trips — list the alarms and trips on an auxiliary boiler panel", "cross_family": false } ] }, { "qid": "MUM-2025-11-0606-Q005", "text": "Mlc deficiency", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2025-11-0606", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-007", "score": 0.7737204432487488, "sibling_score": 0.7737204432487488, "answer_score": 0.27048220336437223, "sibling_qid": "MUM-2026-06-3511-Q003", "sibling_text": "deficiency in mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false }, { "answer_id": "ISMNC-010", "score": 0.5591813921928406, "sibling_score": 0.5591813921928406, "answer_score": null, "sibling_qid": "MUM-2026-03-0813-Q008", "sibling_text": "deficiency mnc nc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Differentiate between a deficiency, an observation, a non-conformity and a major non-conformity, including the deficiency codes used at inspection.", "cross_family": true }, { "answer_id": "ENG-NOM-006", "score": 0.28152329623699185, "sibling_score": null, "answer_score": 0.28152329623699185, "sibling_qid": "", "sibling_text": "short form asks smc c lmc and me vs mc quickly smc c super long stroke man programme camshaft controlled compact lmc l long stroke the l is the stroke letter not a control or compact letter", "sibling_family": "", "via": "answer_title", "answer_title": "Short-form asks: SMC-C, LMC, and ME vs MC quickly", "cross_family": false } ] }, { "qid": "MUM-2025-11-0608-Q003", "text": "what is MNC", "family": "ISM Code", "subtopic": "Major / Minor NC", "tid": "MUM-2025-11-0608", "tray": "review", "candidates": [ { "answer_id": "ISMNC-002", "score": 0.6969757080078125, "sibling_score": 0.6969757080078125, "answer_score": null, "sibling_qid": "MUM-2023-03-0091-Q009", "sibling_text": "define mnc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a major non-conformity under the ISM Code? 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Then how u will check", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Pump Timing", "tid": "MUM-2025-11-0987", "tray": "review", "candidates": [ { "answer_id": "FCL-P03-003", "score": 0.8192974925041199, "sibling_score": 0.8192974925041199, "answer_score": null, "sibling_qid": "CHE-2026-05-0647-Q006", "sibling_text": "ae fuel pump timing check no marking in fly wheel", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Sulzer / RTA fuel pump timing and lead", "cross_family": false }, { "answer_id": "FCL-P03-001", "score": 0.7818487286567688, "sibling_score": 0.7818487286567688, "answer_score": 0.6036114931106568, "sibling_qid": "MUM-2024-04-2227-Q003", "sibling_text": "how to find timing of ae fuel pp if markings are missing on flywheel", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "AE / auxiliary-engine fuel pump timing check and adjustment", "cross_family": false }, { "answer_id": "FCAM-LEAD-P04-002", "score": 0.7350826859474182, "sibling_score": 0.7350826859474182, "answer_score": 0.5561691135168075, "sibling_qid": "KOL-2023-07-3620-Q004", "sibling_text": "in main engine flywheel marking is not there you have to do the marking of every unit tdc procdure how to do", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Finding TDC when flywheel markings are missing", "cross_family": false } ] }, { "qid": "MUM-2025-11-0987-Q008", "text": "How to renew pintel bearing.", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "MUM-2025-11-0987", "tray": "new", "candidates": [ { "answer_id": "MAIN-BRG-B-001", "score": 0.5812480449676514, "sibling_score": 0.5812480449676514, "answer_score": null, "sibling_qid": "KOC-2025-02-1901-Q001", "sibling_text": "explain main bearing renewal", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you open up / remove / overhaul a main-engine main bearing?", "cross_family": true }, { "answer_id": "PURIF-BOWL-P02-003", "score": 0.5545493364334106, "sibling_score": 0.5545493364334106, "answer_score": null, "sibling_qid": "KOL-2024-02-3672-Q004", "sibling_text": "purifier bearing renewal types of bearing materials of balls n inner outer race", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Vertical shaft, bowl height, bearings & load support — checks, adjustment, overhaul, renewal", "cross_family": true }, { "answer_id": "BEB-A-001", "score": 0.5337671041488647, "sibling_score": 0.5337671041488647, "answer_score": null, "sibling_qid": "KOL-2025-12-4076-Q003", "sibling_text": "bottom end bearing renewal hours reason for con rod renewal", "sibling_family": "2-Stroke - 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Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "MUM-2025-11-1217-Q003", "text": "Improved safety and high lift safety valve.", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2025-11-1217", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.8180577754974365, "sibling_score": 0.8180577754974365, "answer_score": null, "sibling_qid": "MUM-2026-06-3405-Q017", "sibling_text": "improved high lift safety valve details", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACSS-002", "score": 0.5003031432628632, "sibling_score": null, "answer_score": 0.5003031432628632, "sibling_qid": "", "sibling_text": "relief safety valves settings testing lifting reasons bursting disc set just above stage working pressure the class standard accumulation limit is about 10 though the exact set point is a maker sms value non isolable from its stage test to the maker s method easing gear or test rig for lifting pressure log and reset", "sibling_family": "", "via": "answer_title", "answer_title": "Relief / safety valves: settings, testing, lifting reasons; bursting disc", "cross_family": false }, { "answer_id": "SCAV-323-P02-008", "score": 0.48890020847320553, "sibling_score": null, "answer_score": 0.48890020847320553, "sibling_qid": "", "sibling_text": "safeties and relief arrangements for the scavenge space hazard oily deposits blow past air scavenge fire explosion relief valve door fitted per the maker s design scavenge air receiver or cylinder section spring loaded cup spring lifts at permitted overpressure self closing to prevent air re entry", "sibling_family": "", "via": "answer_title", "answer_title": "Safeties and relief arrangements for the scavenge space", "cross_family": false } ] }, { "qid": "MUM-2025-11-1218-Q001", "text": "and 6 (1st attempt) Ext: Vishwanath Iyer Int: Pravin Nair Started with status of ur functions how many cleared Motor", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-11-1218", "tray": "new", "candidates": [ { "answer_id": "CAS-ESTOP-002", "score": 0.529642641544342, "sibling_score": 0.529642641544342, "answer_score": null, "sibling_qid": "KOL-2016-08-2999-Q003", "sibling_text": "what checks after grounding cleared function 6 harit", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Main-engine checks after grounding, before turning or a kick", "cross_family": true }, { "answer_id": "SBD-001", "score": 0.487912118434906, "sibling_score": 0.487912118434906, "answer_score": null, "sibling_qid": "KOL-2018-10-3192-Q004", "sibling_text": "oil in gauge glass what you will do got function 4 motor again called for liner question told me tell me the first indication not satisfied with all 5 6 repeat", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "You find oil in the boiler gauge glass — causes, how you identify the source, and your actions as 2/E (including if manoeuvring). What is carryover?", "cross_family": true }, { "answer_id": "MIP-264-007", "score": 0.48609232902526855, "sibling_score": 0.48609232902526855, "answer_score": null, "sibling_qid": "KOL-2022-06-1691-Q001", "sibling_text": "6 motor mep", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Fragmentary 'Motor & MEP' prompt (declared interpretation)", "cross_family": true } ] }, { "qid": "MUM-2025-11-1218-Q003", "text": "How is camshaft Driven?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Camshaft Drive / Gear Arrangement", "tid": "MUM-2025-11-1218", "tray": "review", "candidates": [ { "answer_id": "CAM-437-001", "score": 0.7755492925643921, "sibling_score": 0.7755492925643921, "answer_score": 0.5356269598007202, "sibling_qid": "MUM-2026-05-3323-Q003", "sibling_text": "how camshaft driving", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Function of the camshaft in a main (MC) engine", "cross_family": false }, { "answer_id": "CAM-437-002", "score": 0.6996834874153137, "sibling_score": 0.6996834874153137, "answer_score": 0.5306441605091095, "sibling_qid": "MUM-2025-05-1111-Q016", "sibling_text": "main engine cam operation", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Cam operation in the main engine", "cross_family": false }, { "answer_id": "MEB-MEC-P03-002", "score": 0.6698507070541382, "sibling_score": 0.6698507070541382, "answer_score": null, "sibling_qid": "KOC-2025-08-2069-Q004", "sibling_text": "how camshaft is driven in mcc", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "ME camless control architecture — ECS, CCU, EICU, MPC", "cross_family": true } ] }, { "qid": "MUM-2025-11-1218-Q008", "text": "Steering gear telemotor is failed in the sailing what are your actions as 2E. and some more.", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-11-1218", "tray": "review", "candidates": [ { "answer_id": "SG-RAM-001", "score": 0.7096441984176636, "sibling_score": 0.7096441984176636, "answer_score": null, "sibling_qid": "MUM-2026-02-1967-Q004", "sibling_text": "ship is sailing at sea and steering gear telemotor failed what will u do", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Two-ram steering gear — a ram or cylinder cracks, leaks, seizes or ruptures: how do you keep steering?", "cross_family": true }, { "answer_id": "TLM-218-004", "score": 0.691955029964447, "sibling_score": 0.691955029964447, "answer_score": 0.609216496348381, "sibling_qid": "KOL-2026-02-3916-Q005", "sibling_text": "telemotor fail how to operate steering gear", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Telemotor fails — how to keep steering", "cross_family": true }, { "answer_id": "2E-EMACT-005", "score": 0.6304065585136414, "sibling_score": 0.6304065585136414, "answer_score": 0.5114038169384002, "sibling_qid": "CHE-2026-02-0480-Q002", "sibling_text": "your je after turning the engine by tg reports tg motor has burnt out completely and spur gear got locked with flywheel weight and impossible to move with hand lever how will you tackle this sign as 2e in seamanship aspect", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Turning-gear motor burnt out and gear locked with the flywheel — 2/E seamanship action", "cross_family": true } ] }, { "qid": "MUM-2025-11-1220-Q001", "text": "Type of Ship(Bulk carrier)", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-11-1220", "tray": "review", "candidates": [ { "answer_id": "SOLAS12-BC-A-001", "score": 0.8660361170768738, "sibling_score": 0.8660361170768738, "answer_score": 0.5889611005783081, "sibling_qid": "MUM-2026-06-3382-Q001", "sibling_text": "type of ship sailed bulk carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "SOLAS definition and scope of a bulk carrier", "cross_family": false }, { "answer_id": "SOLAS-XII-BC-002", "score": 0.7806803584098816, "sibling_score": 0.7806803584098816, "answer_score": null, "sibling_qid": "KOC-2026-09-2208-Q005", "sibling_text": "bulk carrier as per solas", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Explain SOLAS Chapter XII — the additional safety measures for bulk carriers", "cross_family": true }, { "answer_id": "COT-01", "score": 0.758810818195343, "sibling_score": 0.758810818195343, "answer_score": null, "sibling_qid": "KOC-2026-04-0892-Q003", "sibling_text": "type of ship sailed tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Oil-tanker types, definitions and cargo capability", "cross_family": false } ] }, { "qid": "MUM-2025-11-1220-Q004", "text": "Air Bottle safeties", "family": "Air Compressor", "subtopic": "MAC / Air Compressor", "tid": "MUM-2025-11-1220", "tray": "review", "candidates": [ { "answer_id": "CO2-SYS-005", "score": 0.6743819117546082, "sibling_score": 0.6743819117546082, "answer_score": null, "sibling_qid": "MUM-2026-05-3136-Q004", "sibling_text": "co2 bottle safeties", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 system safeties, CO2-room requirements, alarms and ventilation", "cross_family": true }, { "answer_id": "AIRBTL-CORR-001", "score": 0.6683973670005798, "sibling_score": 0.6683973670005798, "answer_score": 0.5072870671749115, "sibling_qid": "KOL-2026-09-4306-Q001", "sibling_text": "emergency air bottle maintenance", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "AIRBTL-CORR-01 — Air bottle survey and internal inspection — preparation, checks and what you show the surveyor", "cross_family": false }, { "answer_id": "AIRBTL-CORR-004", "score": 0.6518911719322205, "sibling_score": 0.6518911719322205, "answer_score": 0.4889629304409027, "sibling_qid": "KOL-2019-11-3294-Q001", "sibling_text": "air bottle inspection and pressure testing", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "AIRBTL-CORR-04 — Air bottle pressure and hydrostatic testing — when you test, how, and whether you exceed the working pressure", "cross_family": false } ] }, { "qid": "MUM-2025-11-1220-Q005", "text": "Fusible Plug Working &Compsition(low melting point alloy)", "family": "Drydock & Underwater Surveys", "subtopic": "Bottom Plug / Bedrock", "tid": "MUM-2025-11-1220", "tray": "new", "candidates": [ { "answer_id": "STEEL-GR-004", "score": 0.6028881072998047, "sibling_score": 0.6028881072998047, "answer_score": null, "sibling_qid": "MUM-2026-03-1296-Q011", "sibling_text": "low alloy metal composition", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Types of steel and the effect of alloying elements", "cross_family": true }, { "answer_id": "FUSE-HRC-006", "score": 0.579838216304779, "sibling_score": 0.579838216304779, "answer_score": null, "sibling_qid": "KOL-2016-08-2064-Q002", "sibling_text": "type of fuse melting temp", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Selecting and interpreting fuse rating – current, voltage, and the motor trap", "cross_family": true }, { "answer_id": "FUSE-HRC-004", "score": 0.5752981901168823, "sibling_score": 0.5752981901168823, "answer_score": 0.4501697987318039, "sibling_qid": "KOC-2026-05-2134-Q010", "sibling_text": "hrc fuses", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "HRC fuse – construction, operation, materials, identification", "cross_family": true } ] }, { "qid": "MUM-2025-11-1220-Q006", "text": "Water hammering in steam lines", "family": "Boilers - Operations & Firing", "subtopic": "Boiler Water Circulation", "tid": "MUM-2025-11-1220", "tray": "new", "candidates": [ { "answer_id": "BLR-STM-PR-B54-002", "score": 0.645285427570343, "sibling_score": 0.645285427570343, "answer_score": 0.4517126679420471, "sibling_qid": "KOC-2022-04-1784-Q005", "sibling_text": "during round steam pressure incresing suddenly reasons", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "On rounds the steam pressure is suddenly climbing — reasons, and what you do about it", "cross_family": false }, { "answer_id": "DP-TX-006", "score": 0.6365322470664978, "sibling_score": 0.6365322470664978, "answer_score": null, "sibling_qid": "KOL-2025-08-2012-Q004", "sibling_text": "swell and shrink in boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler swell and shrink in relation to DP level measurement and control", "cross_family": false }, { "answer_id": "BLR-OPS-001", "score": 0.6046939492225647, "sibling_score": 0.6046939492225647, "answer_score": null, "sibling_qid": "KOL-2022-11-3583-Q002", "sibling_text": "boiler steam rising in cold condition", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Explain the procedure for raising steam in an auxiliary boiler from cold.", "cross_family": false } ] }, { "qid": "MUM-2025-11-1753-Q007", "text": "Gmdss", "family": "SOLAS - LSA & Lifeboats", "subtopic": "EPIRB / SART", "tid": "MUM-2025-11-1753", "tray": "review", "candidates": [ { "answer_id": "UNL-330-001", "score": 0.7296289801597595, "sibling_score": 0.7296289801597595, "answer_score": null, "sibling_qid": "MUM-2026-05-3193-Q007", "sibling_text": "gmdss", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What is the function of the main air compressor unloader?", "cross_family": false }, { "answer_id": "bdc-p05-03", "score": 0.6256102919578552, "sibling_score": 0.6256102919578552, "answer_score": 0.39971174895763395, "sibling_qid": "CHE-2026-04-0379-Q005", "sibling_text": "gmdss source of supply", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "CQ-BDC-025 GMDSS reserve battery — requirement, supply, voltage and equipment Medium", "cross_family": true }, { "answer_id": "bdc-p05-04", "score": 0.5646967887878418, "sibling_score": 0.5646967887878418, "answer_score": 0.39785823374986645, "sibling_qid": "MUM-2026-03-1994-Q005", "sibling_text": "solas requirement for gmdss and emergency battery", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "CQ-BDC-027 GMDSS, emergency and engine-starting batteries — three systems, three rules Medium", "cross_family": true } ] }, { "qid": "MUM-2025-11-1753-Q012", "text": "Material of radiation material", "family": "", "subtopic": "", "tid": "MUM-2025-11-1753", "tray": "review", "candidates": [ { "answer_id": "FSH-DET-002", "score": 0.8157126307487488, "sibling_score": 0.8157126307487488, "answer_score": null, "sibling_qid": "MUM-2026-05-3192-Q003", "sibling_text": "material of radiation material", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Working of smoke detectors — ionization type and cargo-hold smoke detection", "cross_family": false }, { "answer_id": "BUNK-SAMP-004", "score": 0.5854518413543701, "sibling_score": 0.5854518413543701, "answer_score": null, "sibling_qid": "KOC-2025-02-2060-Q017", "sibling_text": "material", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Sample container, material, quantity, marking and bottles", "cross_family": false }, { "answer_id": "GC-TANK-007", "score": 0.5239112377166748, "sibling_score": 0.5239112377166748, "answer_score": null, "sibling_qid": "CHE-2025-11-0081-Q003", "sibling_text": "invar material", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Invar material and its use in LNG cargo containment", "cross_family": false } ] }, { "qid": "MUM-2025-11-1753-Q014", "text": "Type of dc motor in ship", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-11-1753", "tray": "review", "candidates": [ { "answer_id": "DCMOT-A-001", "score": 0.7832238078117371, "sibling_score": 0.7832238078117371, "answer_score": 0.6049968481063842, "sibling_qid": "MUM-2026-05-3192-Q005", "sibling_text": "type of dc motor in ship", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types, characteristics and shipboard use of DC motors", "cross_family": true }, { "answer_id": "DCMOT-CMU-B-004", "score": 0.7267365455627441, "sibling_score": 0.7267365455627441, "answer_score": null, "sibling_qid": "CHE-2025-07-0266-Q002", "sibling_text": "any dc motor in ship i said generator governor stepper motor he asked how operate", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "The DC motor on the AE governor (the actuator)", "cross_family": true }, { "answer_id": "SYNC-ASY-C-003", "score": 0.6675372123718262, "sibling_score": 0.6675372123718262, "answer_score": null, "sibling_qid": "KOL-2026-04-2981-Q002", "sibling_text": "synchronous motor used on ship", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Onboard uses of synchronous motors", "cross_family": true } ] }, { "qid": "MUM-2025-11-1759-Q001", "text": "1 220, 440 alarm came how will you attend", "family": "Electrical - Protection & Relays", "subtopic": "Protection / Relays", "tid": "MUM-2025-11-1759", "tray": "new", "candidates": [ { "answer_id": "EF-DET-P01-003", "score": 0.5225374698638916, "sibling_score": 0.5225374698638916, "answer_score": 0.39163718223571775, "sibling_qid": "KOC-2025-11-1635-Q005", "sibling_text": "what are the actions to be taken when you receive a 440v low insulation alarm at 5 am", "sibling_family": "", "via": "sibling", "answer_title": "Tracing and locating an earth fault or low-insulation fault on a 440V / 220V / deck circuit", "cross_family": false }, { "answer_id": "OMD-001", "score": 0.5043129920959473, "sibling_score": 0.5043129920959473, "answer_score": null, "sibling_qid": "KOL-2020-11-1562-Q002", "sibling_text": "action as 2e after omd alarm", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "The OMD alarm sounds on your watch. What are your actions, the checks and crankcase inspection that follow, and what are the alarm levels?", "cross_family": true }, { "answer_id": "LO-PR-ALM-001", "score": 0.4812932312488556, "sibling_score": 0.4812932312488556, "answer_score": null, "sibling_qid": "MUM-2025-09-2832-Q010", "sibling_text": "me lo low or alarm came what action how do u know if it is false or true alarm", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main engine low lubricating-oil pressure — alarm, slowdown or trip: your actions as 2/E, and is the alarm true or false?", "cross_family": true } ] }, { "qid": "MUM-2025-11-1759-Q002", "text": "2 one practical question couldn't able to here about the new motor installation what guidence to 4 eng while you are in maneovuring", "family": "ISM Code", "subtopic": "Joining Ship Handover", "tid": "MUM-2025-11-1759", "tray": "new", "candidates": [ { "answer_id": "IRT-C-013", "score": 0.5626838207244873, "sibling_score": 0.5626838207244873, "answer_score": null, "sibling_qid": "MUM-2026-02-1971-Q005", "sibling_text": "motor received from shore when you have last line ashore and ship is about leave what guidance you will give to your 4e to check at first place", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Motor back from shore / rewind — checks before commissioning", "cross_family": true }, { "answer_id": "BDC-P06-01", "score": 0.5568854808807373, "sibling_score": 0.5568854808807373, "answer_score": null, "sibling_qid": "MUM-2026-02-0794-Q011", "sibling_text": "battery room safeties and precautions if new 4th engine join wt instructions u wil give him bfre entering", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "Battery-room hazards, requirements and entry precautions", "cross_family": true }, { "answer_id": "EICU-MAN-P01-002", "score": 0.5518639087677002, "sibling_score": 0.5518639087677002, "answer_score": null, "sibling_qid": "KOC-2022-07-0972-Q001", "sibling_text": "me engine manoeuvring only explanation no need of figure", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "ME / ME-C / ME-B manoeuvring system — diagram and explanation", "cross_family": true } ] }, { "qid": "MUM-2025-11-1761-Q002", "text": "Status of other functions", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-11-1761", "tray": "new", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.5770787596702576, "sibling_score": 0.5770787596702576, "answer_score": null, "sibling_qid": "MUM-2026-05-3187-Q001", "sibling_text": "status of other orals and written", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": false }, { "answer_id": "IMO-CODES-P03-002", "score": 0.5640826225280762, "sibling_score": 0.5640826225280762, "answer_score": null, "sibling_qid": "MUM-2026-03-0815-Q003", "sibling_text": "which function", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": false }, { "answer_id": "AVR-EXC-B-001", "score": 0.5101403594017029, "sibling_score": 0.5101403594017029, "answer_score": null, "sibling_qid": "KOC-2025-12-1676-Q004", "sibling_text": "explain status avr", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Explain the AVR working principle and control-loop operation.", "cross_family": true } ] }, { "qid": "MUM-2025-11-1763-Q007", "text": "440/220 alarm came actions.", "family": "Electrical - Protection & Relays", "subtopic": "Protection / Relays", "tid": "MUM-2025-11-1763", "tray": "new", "candidates": [ { "answer_id": "OMD-001", "score": 0.5755721926689148, "sibling_score": 0.5755721926689148, "answer_score": null, "sibling_qid": "KOL-2020-11-1562-Q002", "sibling_text": "action as 2e after omd alarm", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "The OMD alarm sounds on your watch. What are your actions, the checks and crankcase inspection that follow, and what are the alarm levels?", "cross_family": true }, { "answer_id": "LO-PR-ALM-001", "score": 0.5603726506233215, "sibling_score": 0.5603726506233215, "answer_score": null, "sibling_qid": "MUM-2023-11-2211-Q001", "sibling_text": "actions as 2e when lo lp alarm main engine", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main engine low lubricating-oil pressure — alarm, slowdown or trip: your actions as 2/E, and is the alarm true or false?", "cross_family": true }, { "answer_id": "CCE-322-005", "score": 0.5597959756851196, "sibling_score": 0.5597959756851196, "answer_score": 0.35935983955860135, "sibling_qid": "CHE-2026-03-0490-Q003", "sibling_text": "omd alarm actions", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Action on an OMD / crankcase-explosion alarm; checking a faulty sensor", "cross_family": true } ] }, { "qid": "MUM-2025-11-1767-Q003", "text": "what type of ship. Type of engine ?", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "MUM-2025-11-1767", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.7950902581214905, "sibling_score": 0.7950902581214905, "answer_score": null, "sibling_qid": "MUM-2025-08-2357-Q001", "sibling_text": "type of ship type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.7744919657707214, "sibling_score": 0.7744919657707214, "answer_score": null, "sibling_qid": "MUM-2026-07-3668-Q004", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "AC-VE-001", "score": 0.7504914402961731, "sibling_score": 0.7504914402961731, "answer_score": null, "sibling_qid": "MUM-2026-01-2904-Q001", "sibling_text": "what type of ship engine power and nomenclature", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Volumetric efficiency: define it, and if it drops how do you improve it (with bumping clearance)?", "cross_family": false } ] }, { "qid": "MUM-2025-11-1767-Q011", "text": "Blackout sequence( wanted to hear standby generator starts and came on before emergency generator)", "family": "Electrical - Generator & Alternator", "subtopic": "Black Out Test / Recovery", "tid": "MUM-2025-11-1767", "tray": "review", "candidates": [ { "answer_id": "EMCY-DG-P03-004", "score": 0.7251084446907043, "sibling_score": 0.7251084446907043, "answer_score": 0.5722236067056655, "sibling_qid": "KOC-2025-12-1673-Q007", "sibling_text": "blackout happened how emergency generator will get started", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Blackout sequence — starting the set and taking load back", "cross_family": false }, { "answer_id": "EMG-DG-P04-001", "score": 0.6923746466636658, "sibling_score": 0.6923746466636658, "answer_score": null, "sibling_qid": "KOC-2023-05-1257-Q002", "sibling_text": "esb sequence on how emergency generator comes on load", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Emergency generator on-load / load-test procedure", "cross_family": false }, { "answer_id": "BOT-002", "score": 0.6624164581298828, "sibling_score": 0.6624164581298828, "answer_score": 0.5014251470565796, "sibling_qid": "KOL-2019-03-3226-Q002", "sibling_text": "aux machinery starting sequence after blackout at sea crossquestions about emcy generator and pms", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "What is the blackout recovery procedure, in what sequence do the auxiliaries restart after a blackout at sea, and what is the role of the under-voltage release and where is it located?", "cross_family": false } ] }, { "qid": "MUM-2025-11-1769-Q005", "text": "How u will take", "family": "", "subtopic": "", "tid": "MUM-2025-11-1769", "tray": "new", "candidates": [ { "answer_id": "BUNK-SAMP-001", "score": 0.5213671922683716, "sibling_score": 0.5213671922683716, "answer_score": null, "sibling_qid": "KOC-2025-02-2060-Q013", "sibling_text": "how will you take sample", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Taking the bunker (MARPOL delivered) sample", "cross_family": false }, { "answer_id": "IR-TEST-B-002", "score": 0.515272855758667, "sibling_score": 0.515272855758667, "answer_score": null, "sibling_qid": "MUM-2026-02-1976-Q004", "sibling_text": "how do u take ir", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "IR test of a low-voltage motor — the standard megger procedure", "cross_family": false }, { "answer_id": "GMC-583-B-005", "score": 0.511792778968811, "sibling_score": 0.511792778968811, "answer_score": null, "sibling_qid": "KOC-2025-03-1511-Q004", "sibling_text": "amp reel how you will take", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Proving a meter faulty, and getting the reading another way", "cross_family": false } ] }, { "qid": "MUM-2025-11-1773-Q004", "text": "Safeties in alternator.", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator Protection", "tid": "MUM-2025-11-1773", "tray": "review", "candidates": [ { "answer_id": "ALT-GEN-P01-001", "score": 0.764758825302124, "sibling_score": 0.764758825302124, "answer_score": 0.5434805810451507, "sibling_qid": "MUM-2026-07-3805-Q003", "sibling_text": "alternator internal safeties", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Alternator/generator safeties and protection trips", "cross_family": false }, { "answer_id": "SHAFT-GEN-005", "score": 0.5246816724538803, "sibling_score": null, "answer_score": 0.5246816724538803, "sibling_qid": "", "sibling_text": "safeties provided for a shaft generator standard alternator protections over current short circuit over under voltage over under frequency reverse power paralleled earth fault and preferential load shedding trips sg specific interlocks breaker closes only when synchronised clutch gear engagement interlocks", "sibling_family": "", "via": "answer_title", "answer_title": "Safeties provided for a shaft generator", "cross_family": false }, { "answer_id": "ALT-MAINT-A-001", "score": 0.49266033470630644, "sibling_score": null, "answer_score": 0.49266033470630644, "sibling_qid": "", "sibling_text": "routine maintenance care of a ship s alternator make safe first permit to work isolate rack out and lock off the breaker immobilise the prime mover the set is engine driven a blackout dead bus auto start can crank it prove dead discharge the windings the space heater supply is separate it stays live after the alternator breaker is open isolate it independently before touching the windings", "sibling_family": "", "via": "answer_title", "answer_title": "Routine maintenance & care of a ship’s alternator", "cross_family": false } ] }, { "qid": "MUM-2025-11-1776-Q003", "text": "Generator stator connection how its is star or delta", "family": "Electrical - Generator & Alternator", "subtopic": "Star or Delta Connection", "tid": "MUM-2025-11-1776", "tray": "review", "candidates": [ { "answer_id": "SDC-001", "score": 0.784335732460022, "sibling_score": 0.784335732460022, "answer_score": 0.5481941014528274, "sibling_qid": "KOC-2024-09-1390-Q005", "sibling_text": "generator star connected or delta connected y", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Why is the alternator star connected and the motor delta connected?", "cross_family": false }, { "answer_id": "SDST-A-001", "score": 0.6915968656539917, "sibling_score": 0.6915968656539917, "answer_score": 0.5369581550359726, "sibling_qid": "MUM-2026-07-3704-Q016", "sibling_text": "star delta connection", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false }, { "answer_id": "SDC-003", "score": 0.6703299283981323, "sibling_score": 0.6703299283981323, "answer_score": null, "sibling_qid": "CHE-2025-12-0319-Q009", "sibling_text": "star and delta alternator why and difference with equation", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Line and phase relationships — and the 10-amp trap", "cross_family": false } ] }, { "qid": "MUM-2025-11-1776-Q006", "text": "Rating of alternator and its name plate what all are mentioned?", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator / Generator", "tid": "MUM-2025-11-1776", "tray": "review", "candidates": [ { "answer_id": "ALT-GEN-P02-001", "score": 0.7994425296783447, "sibling_score": 0.7994425296783447, "answer_score": 0.5447923213243484, "sibling_qid": "CHE-2026-08-0667-Q008", "sibling_text": "name plate specification of alternator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Alternator/generator specifications, ratings and ship electrical supply details", "cross_family": false }, { "answer_id": "ALT-GEN-P03-006", "score": 0.49877471327781675, "sibling_score": null, "answer_score": 0.49877471327781675, "sibling_qid": "", "sibling_text": "alternator power current rating calculation prompts three phase real power p 3 line voltage line current power factor three phase apparent power s 3 line voltage line current", "sibling_family": "", "via": "answer_title", "answer_title": "Alternator power/current/rating calculation prompts", "cross_family": false }, { "answer_id": "PWR-ARA-004", "score": 0.49495976865291597, "sibling_score": null, "answer_score": 0.49495976865291597, "sibling_qid": "", "sibling_text": "why an alternator is rated in kva not kw rating is limited by current copper i r heating and by voltage and frequency iron flux insulation not by watts maker cannot know the load pf so cannot guarantee kw he rates the kva it can carry", "sibling_family": "", "via": "answer_title", "answer_title": "Why an alternator is rated in kVA, not kW", "cross_family": false } ] }, { "qid": "MUM-2025-11-1776-Q007", "text": "Cleared fn 5", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-11-1776", "tray": "new", "candidates": [ { "answer_id": "MIB-A-001", "score": 0.5623147487640381, "sibling_score": 0.5623147487640381, "answer_score": null, "sibling_qid": "MUM-2022-09-1351-Q005", "sibling_text": "igbt cleared fn 5", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is an IGBT, and where is it used onboard?", "cross_family": true }, { "answer_id": "CTRL-001", "score": 0.494793176651001, "sibling_score": 0.494793176651001, "answer_score": null, "sibling_qid": "KOL-2021-12-2522-Q005", "sibling_text": "cascade control system full got fn 5", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Cascade control — how it works", "cross_family": true }, { "answer_id": "MSB-ESB-F-001", "score": 0.4806346893310547, "sibling_score": 0.4806346893310547, "answer_score": null, "sibling_qid": "MUM-2022-08-1345-Q005", "sibling_text": "main switch board safeties cleared fun 5", "sibling_family": "", "via": "sibling", "answer_title": "What safeties, protection trips, relays and alarms are provided on the MSB/ESB and how are they tested?", "cross_family": false } ] }, { "qid": "MUM-2025-11-1779-Q001", "text": "Type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-11-1779", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.837036669254303, "sibling_score": 0.837036669254303, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.801808774471283, "sibling_score": 0.801808774471283, "answer_score": 0.5473707109689713, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8005447387695312, "sibling_score": 0.8005447387695312, "answer_score": 0.5217237085103988, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2025-11-1779-Q002", "text": "Company name", "family": "Status & Introduction", "subtopic": "Company Introduction", "tid": "MUM-2025-11-1779", "tray": "new", "candidates": [ { "answer_id": "LLST-AB-002", "score": 0.6432965397834778, "sibling_score": 0.6432965397834778, "answer_score": null, "sibling_qid": "MUM-2026-09-3912-Q001", "sibling_text": "company name type of ships native place", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false }, { "answer_id": "ETP-344-P03-001", "score": 0.5727218389511108, "sibling_score": 0.5727218389511108, "answer_score": null, "sibling_qid": "KOC-2026-05-0046-Q002", "sibling_text": "company and type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "PSC-RO-P02-002", "score": 0.5277484655380249, "sibling_score": 0.5277484655380249, "answer_score": null, "sibling_qid": "KOL-2017-07-0095-Q004", "sibling_text": "port state riginal corporation", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "How does PSC work with the flag State, RO, CIC and MoU frameworks?", "cross_family": true } ] }, { "qid": "MUM-2025-11-1779-Q003", "text": "Frame number of motor", "family": "Electrical - Motors & Starters", "subtopic": "Frame Number", "tid": "MUM-2025-11-1779", "tray": "review", "candidates": [ { "answer_id": "ELECTRICAL-M-A-01", "score": 0.8949955701828003, "sibling_score": 0.8949955701828003, "answer_score": 0.5991643130779266, "sibling_qid": "NOI-2026-09-0005-Q009", "sibling_text": "frame number of motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Motor Frame Number", "cross_family": false }, { "answer_id": "KGF-A-002", "score": 0.688227117061615, "sibling_score": 0.688227117061615, "answer_score": 0.4907058209180832, "sibling_qid": "KOC-2026-08-2115-Q010", "sibling_text": "frame number", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Frame numbering, spacing & identification", "cross_family": true }, { "answer_id": "IP-ENCL-001", "score": 0.6466863751411438, "sibling_score": 0.6466863751411438, "answer_score": null, "sibling_qid": "MUM-2026-01-1899-Q009", "sibling_text": "motor number of terminal", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "IP rating of motors — what the numbers mean", "cross_family": false } ] }, { "qid": "MUM-2025-11-1782-Q001", "text": "TYPE OF SHIP SAILED", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-11-1782", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8459892868995667, "sibling_score": 0.8459892868995667, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8450009822845459, "sibling_score": 0.8450009822845459, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7928504943847656, "sibling_score": 0.7928504943847656, "answer_score": null, "sibling_qid": "CHE-2026-03-0253-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "MUM-2025-11-1782-Q003", "text": "ELECTRICAL PROTECTION TO KEEP IN MIND WHILE VESSEL IS IN DRYDOCK(HERE WHAT WE WILL DO TO PROTECT ALTERNATOR IF IT IS ISOLATED FOR LONGER PERIOD IN DRYDOCK- I TOLD ABOUT STATOR HEATING/HEATER) MOVED ON TO NEXT", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator Protection", "tid": "MUM-2025-11-1782", "tray": "review", "candidates": [ { "answer_id": "ALT-GEN-P01-001", "score": 0.753416121006012, "sibling_score": 0.753416121006012, "answer_score": 0.5592553079128265, "sibling_qid": "MUM-2026-07-3800-Q005", "sibling_text": "protection inside alternator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Alternator/generator safeties and protection trips", "cross_family": false }, { "answer_id": "ALT-MAINT-A-001", "score": 0.7278833389282227, "sibling_score": 0.7278833389282227, "answer_score": 0.6367208898067475, "sibling_qid": "MUM-2022-11-1370-Q001", "sibling_text": "alternator maintenance full with isolation", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Routine maintenance & care of a ship’s alternator", "cross_family": false }, { "answer_id": "IR-TEST-305-002", "score": 0.7243108153343201, "sibling_score": 0.7243108153343201, "answer_score": null, "sibling_qid": "KOL-2026-07-4276-Q007", "sibling_text": "during alternator maintenance how will you protect the diodes wanted to hear jumper cable arrangement decider question", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Precautions, isolation and protecting the AVR, diodes and electronics", "cross_family": false } ] }, { "qid": "MUM-2025-11-1783-Q005", "text": "Field flashing", "family": "Electrical - Generator & Alternator", "subtopic": "Residual Magnetism / Flashing", "tid": "MUM-2025-11-1783", "tray": "review", "candidates": [ { "answer_id": "RES-MAG-004", "score": 0.7113212943077087, "sibling_score": 0.7113212943077087, "answer_score": 0.33702463805675503, "sibling_qid": "MUM-2026-06-3421-Q004", "sibling_text": "flashing up", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Field flashing — the procedure, where the battery connects, which terminal, and the precautions", "cross_family": false }, { "answer_id": "ELEC-ELX-016", "score": 0.40537744760513306, "sibling_score": null, "answer_score": 0.40537744760513306, "sibling_qid": "", "sibling_text": "stroboscopic effect", "sibling_family": "", "via": "answer_title", "answer_title": "Stroboscopic effect", "cross_family": false }, { "answer_id": "ELEC-ELX-010", "score": 0.3266523599624634, "sibling_score": null, "answer_score": 0.3266523599624634, "sibling_qid": "", "sibling_text": "electrical spark and static charge", "sibling_family": "", "via": "answer_title", "answer_title": "Electrical spark and static charge", "cross_family": false } ] }, { "qid": "MUM-2025-11-1783-Q009", "text": "Checks to do in motor.", "family": "Electrical - Motors & Starters", "subtopic": "Motor Not Starting", "tid": "MUM-2025-11-1783", "tray": "review", "candidates": [ { "answer_id": "IRT-C-013", "score": 0.6997449994087219, "sibling_score": 0.6997449994087219, "answer_score": null, "sibling_qid": "KOC-2026-05-2134-Q007", "sibling_text": "checks before putting spare motor in use", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Motor back from shore / rewind — checks before commissioning", "cross_family": false }, { "answer_id": "IR-TEST-B-016", "score": 0.6579367518424988, "sibling_score": 0.6579367518424988, "answer_score": 0.4672492742538452, "sibling_qid": "MUM-2025-05-1517-Q002", "sibling_text": "motor checks after receiving from overhaul", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Post-overhaul motor testing — proving it good without coupling to load", "cross_family": false }, { "answer_id": "IRT-C-008", "score": 0.6476922035217285, "sibling_score": 0.6476922035217285, "answer_score": null, "sibling_qid": "KOL-2017-06-2133-Q004", "sibling_text": "on what bases u will decide weather to check the ir of motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "When to test IR; trending", "cross_family": false } ] }, { "qid": "MUM-2025-11-1784-Q005", "text": "Types of circuit faults ?", "family": "Electrical - Protection & Relays", "subtopic": "Circuit Fault Types", "tid": "MUM-2025-11-1784", "tray": "review", "candidates": [ { "answer_id": "EF-DET-P01-001", "score": 0.7104439735412598, "sibling_score": 0.7104439735412598, "answer_score": 0.5137650609016419, "sibling_qid": "KOC-2023-03-1239-Q007", "sibling_text": "open circuit short circuit earth fault", "sibling_family": "", "via": "sibling", "answer_title": "Earth fault / earth leakage — and how it differs from short circuit and open circuit", "cross_family": false }, { "answer_id": "CB-ACBVCBSF6-E-001", "score": 0.7056565880775452, "sibling_score": 0.7056565880775452, "answer_score": null, "sibling_qid": "MUM-2026-09-3894-Q002", "sibling_text": "types of cb circuit breaker", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "What are the common types of circuit breakers used onboard and where are ACB, MCB, MCCB, VCB and SF6 breakers applied?", "cross_family": false }, { "answer_id": "OC-UV-TRIP-002", "score": 0.7047024369239807, "sibling_score": 0.7047024369239807, "answer_score": null, "sibling_qid": "KOC-2026-04-1751-Q003", "sibling_text": "types of over current trip", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Overcurrent vs overload relay — difference, working, settings and testing", "cross_family": false } ] }, { "qid": "MUM-2025-11-1786-Q001", "text": "ACB MAINTENANCE", "family": "", "subtopic": "Circuit Breakers (ACB / VCB / SF6)", "tid": "MUM-2025-11-1786", "tray": "review", "candidates": [ { "answer_id": "CB033-C-001", "score": 0.7552237510681152, "sibling_score": 0.7552237510681152, "answer_score": 0.4056242063641548, "sibling_qid": "KOL-2025-09-2876-Q004", "sibling_text": "maintenance on acb", "sibling_family": "", "via": "sibling", "answer_title": "How do you carry out maintenance and testing on an ACB / main circuit breaker?", "cross_family": false }, { "answer_id": "ALPHA-LUB-A-003", "score": 0.37643219679594037, "sibling_score": null, "answer_score": 0.37643219679594037, "sibling_qid": "", "sibling_text": "alpha lubricator overhaul checks and local maintenance", "sibling_family": "", "via": "answer_title", "answer_title": "Alpha lubricator overhaul, checks and local maintenance", "cross_family": false }, { "answer_id": "MSB-ESB-B-001", "score": 0.37275786995887755, "sibling_score": null, "answer_score": 0.37275786995887755, "sibling_qid": "", "sibling_text": "routine maintenance health check of the msb", "sibling_family": "", "via": "answer_title", "answer_title": "Routine maintenance & health check of the MSB", "cross_family": false } ] }, { "qid": "MUM-2025-11-1786-Q003", "text": "INSULATION TEST OF ALTERNATOR, SAFETIES?", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator Protection", "tid": "MUM-2025-11-1786", "tray": "review", "candidates": [ { "answer_id": "IR-TEST-305-001", "score": 0.8156264424324036, "sibling_score": 0.8156264424324036, "answer_score": 0.5460738658905029, "sibling_qid": "MUM-2026-01-1859-Q007", "sibling_text": "insulation test in alternator with all precautions", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Carrying out the IR (megger) test on an alternator winding", "cross_family": false }, { "answer_id": "ALT-MAINT-C-002", "score": 0.7765055894851685, "sibling_score": 0.7765055894851685, "answer_score": 0.5743095934391022, "sibling_qid": "MUM-2026-06-3545-Q008", "sibling_text": "alternator winding insulation test", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "2. How do you check winding insulation, IR, hotspots and winding condition?", "cross_family": false }, { "answer_id": "IR-TEST-305-005", "score": 0.7723695635795593, "sibling_score": 0.7723695635795593, "answer_score": null, "sibling_qid": "KOL-2018-11-2232-Q001", "sibling_text": "insulation resistance check in alternator where physically star connection fitted", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Star-point, HV alternator and NER context", "cross_family": false } ] }, { "qid": "MUM-2025-11-1787-Q002", "text": "UVT coil working", "family": "Electrical - Protection & Relays", "subtopic": "Undervoltage Trip / UVT Coil", "tid": "MUM-2025-11-1787", "tray": "review", "candidates": [ { "answer_id": "OC-UV-TRIP-001", "score": 0.6966185569763184, "sibling_score": 0.6966185569763184, "answer_score": 0.35623493790626526, "sibling_qid": "MUM-2026-01-1905-Q001S2", "sibling_text": "uvt coil", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Under-voltage trip / no-volt coil — purpose, working, onboard test and calibration", "cross_family": false }, { "answer_id": "HV-SYS-P05-002", "score": 0.520919144153595, "sibling_score": 0.520919144153595, "answer_score": null, "sibling_qid": "MUM-2026-03-2026-Q001", "sibling_text": "what is bonding what is uvt coil how you work on hv system waiting in lobby", "sibling_family": "", "via": "sibling", "answer_title": "Working on the HV system: precautions, isolation and earthing before maintenance", "cross_family": false }, { "answer_id": "FSH-DET-003", "score": 0.47804516553878784, "sibling_score": 0.47804516553878784, "answer_score": 0.3548139661550522, "sibling_qid": "KOC-2023-08-1274-Q002", "sibling_text": "uv flame detector it s working", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Working principle of UV / flame detectors", "cross_family": true } ] }, { "qid": "MUM-2025-11-1790-Q005", "text": "Difference between generator and motor in detail", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator / Generator", "tid": "MUM-2025-11-1790", "tray": "review", "candidates": [ { "answer_id": "ALT-GEN-P03-001", "score": 0.7868054509162903, "sibling_score": 0.7868054509162903, "answer_score": 0.5222001016139984, "sibling_qid": "MUM-2026-03-2053-Q007", "sibling_text": "difference generator or motor", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Alternator/generator working principle and onboard electricity generation", "cross_family": false }, { "answer_id": "ALT-GEN-P04-002", "score": 0.7038006782531738, "sibling_score": 0.7038006782531738, "answer_score": 0.5171795070171356, "sibling_qid": "KOL-2018-05-2198-Q001", "sibling_text": "difference between generator alternator and turbogenerator alternator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Diesel-driven alternator versus turbo-generator alternator", "cross_family": false }, { "answer_id": "SYNC-ASYNC-A-003", "score": 0.6839681267738342, "sibling_score": 0.6839681267738342, "answer_score": 0.5546332865953445, "sibling_qid": "KOC-2024-02-1331-Q003", "sibling_text": "difference between alternator and induction motor", "sibling_family": "Electrical - 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Lubrication & Bearings", "via": "sibling", "answer_title": "Why is the connecting rod made I-section (or H-section)? Explain section modulus and Young's modulus.", "cross_family": false }, { "answer_id": "EEXI-005", "score": 0.3774349093437195, "sibling_score": 0.3774349093437195, "answer_score": null, "sibling_qid": "MUM-2026-05-3261-Q004", "sibling_text": "shapoli shaft power limitation", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "The Engine Power Limiter — how it is fitted on MC and ME engines, the setpoint, ShaPoLi, the records, and derating to meet EEXI", "cross_family": false }, { "answer_id": "NPSH-001", "score": 0.3672837018966675, "sibling_score": 0.3672837018966675, "answer_score": null, "sibling_qid": "MUM-2026-05-3172-Q006", "sibling_text": "npsh", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "What is NPSH, and what are its types?", "cross_family": false } ] }, { "qid": "MUM-2025-11-2469-Q001", "text": "Boiler circulating pump burning reason ?", "family": "Boilers - Operations & Firing", "subtopic": "Circulating Pump", "tid": "MUM-2025-11-2469", "tray": "review", "candidates": [ { "answer_id": "BLR-BSP-001", "score": 0.7396663427352905, "sibling_score": 0.7396663427352905, "answer_score": null, "sibling_qid": "MUM-2026-01-1846-Q002", "sibling_text": "why boiler ciruclating pump trip again and again", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler panting (combustion pulsation): causes, symptoms, and your actions as 2/E", "cross_family": false }, { "answer_id": "MNS-008", "score": 0.7298964858055115, "sibling_score": 0.7298964858055115, "answer_score": null, "sibling_qid": "MUM-2026-01-2533-Q005", "sibling_text": "1 you joined as second engineer and previous second engineer told you history about boiler water circulating pump motor is getting burn frequently he checked most of things but problem is not resolved what u think what is the problem of burning motor", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "One winding heating up on a heavy-load motor — a compressor or LO pump drive", "cross_family": false }, { "answer_id": "BFM-330-003", "score": 0.7047151923179626, "sibling_score": 0.7047151923179626, "answer_score": 0.5133543789386749, "sibling_qid": "MUM-2025-12-2879-Q008", "sibling_text": "boiler running in manual mode resulting in back flow for each fire reason", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler vibration, backflow and furnace blowback during firing", "cross_family": false } ] }, { "qid": "MUM-2025-11-2469-Q003", "text": "ME- C main control system failure how to run engine", "family": "2-Stroke - Reversing & Maneuvering", "subtopic": "EICU / Manoeuvring System", "tid": "MUM-2025-11-2469", "tray": "new", "candidates": [ { "answer_id": "EICU-MAN-P01-002", "score": 0.6064167618751526, "sibling_score": 0.6064167618751526, "answer_score": null, "sibling_qid": "KOC-2023-07-0982-Q001", "sibling_text": "me engine manuovering cross in case of eicu fail how to operate", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "ME / ME-C / ME-B manoeuvring system — diagram and explanation", "cross_family": false }, { "answer_id": "TC-CS-P01-007", "score": 0.5996322631835938, "sibling_score": 0.5996322631835938, "answer_score": null, "sibling_qid": "KOC-2025-02-1901-Q004", "sibling_text": "if t c fails how to run engine", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "G·Running the engine with a turbocharger out of service", "cross_family": true }, { "answer_id": "EICU-MAN-P01-004", "score": 0.5906152129173279, "sibling_score": 0.5906152129173279, "answer_score": 0.49165359139442444, "sibling_qid": "MUM-2025-01-2790-Q003", "sibling_text": "ecu a and ecu b failed can we run engine", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Control-unit failure — CCU / ECU / EICU: can you still run the engine?", "cross_family": false } ] }, { "qid": "MUM-2025-11-2469-Q004", "text": "Why in steering gear 35-30 degree only why not 35-35 in 28 sec and few more", "family": "Steering Gear & Hydraulics", "subtopic": "Steering Going 35-30 Slow", "tid": "MUM-2025-11-2469", "tray": "new", "candidates": [ { "answer_id": "STEER-055-A-004", "score": 0.5192545652389526, "sibling_score": 0.5192545652389526, "answer_score": null, "sibling_qid": "KOC-2021-07-1764-Q007", "sibling_text": "steering gear takes more time to respond after giving signal from bridge reasons thank you each and everyone for posting questions and helping wish you all the very best", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Hydraulic faults — air, sluggish response, locking, leakage", "cross_family": false }, { "answer_id": "RVSG-213-002", "score": 0.5123611688613892, "sibling_score": 0.5123611688613892, "answer_score": null, "sibling_qid": "KOL-2021-08-1611-Q002", "sibling_text": "vane type steering gear movement angle and no of vanes", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Working principle, actuation, reversal, movement angle & number of vanes", "cross_family": false }, { "answer_id": "SG-055-B-003", "score": 0.5116299986839294, "sibling_score": 0.5116299986839294, "answer_score": null, "sibling_qid": "KOL-2026-01-4081-Q008", "sibling_text": "50 capability of steering gear", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Redundancy and the single-failure requirement (50% / 100%)", "cross_family": false } ] }, { "qid": "MUM-2025-11-2469-Q006", "text": "Turbocharger binding cable why?", "family": "Turbocharger", "subtopic": "Turbocharger (General)", "tid": "MUM-2025-11-2469", "tray": "new", "candidates": [ { "answer_id": "TC-CONST-004", "score": 0.6394758224487305, "sibling_score": 0.6394758224487305, "answer_score": null, "sibling_qid": "CHE-2026-05-0644-Q010", "sibling_text": "how to stop axial movement of turbine blades in turbocharger doesn t accept thrust collar with bearing on the rotor said it s for rotor axial movement not blades axial movement doesn t accept binding wire in rotor blades", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbine-side components: nozzle rings, vanes and blade fitting", "cross_family": false }, { "answer_id": "TURBO-CS-P03-004", "score": 0.6251175403594971, "sibling_score": 0.6251175403594971, "answer_score": null, "sibling_qid": "KOL-2022-11-1717-Q001", "sibling_text": "turbocharger blade fitting arrangements damping wire purpose and position", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Rotor blade fixing: fir-tree / bulb root, damping (lacing) wire", "cross_family": false }, { "answer_id": "TCS-059-P04-016", "score": 0.6210888028144836, "sibling_score": 0.6210888028144836, "answer_score": null, "sibling_qid": "KOL-2025-01-3738-Q002", "sibling_text": "turbocharger when we need to lock and procedure", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Blanking and locking the rotor — when and how", "cross_family": false } ] }, { "qid": "MUM-2025-11-2470-Q003", "text": "Purifier bowl not closing reasons", "family": "Purifier & Centrifuges", "subtopic": "Purifier Operation / Bowl", "tid": "MUM-2025-11-2470", "tray": "review", "candidates": [ { "answer_id": "PURIF-BOWL-P02-001", "score": 0.8329977989196777, "sibling_score": 0.8329977989196777, "answer_score": 0.48734730780124663, "sibling_qid": "CHE-2025-11-0449-Q003", "sibling_text": "purifier bowl not closing reasons", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Bowl opening, closing & manual desludging — mechanism, manual operation, failure causes", "cross_family": false }, { "answer_id": "PUR-DSL-001", "score": 0.7060689330101013, "sibling_score": 0.7060689330101013, "answer_score": null, "sibling_qid": "MUM-2026-05-3220-Q006", "sibling_text": "purifier desludging procedure how does the bowl close", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Manual desludging of a purifier — the step-by-step procedure", "cross_family": false }, { "answer_id": "PUR-DSL-003", "score": 0.6930687427520752, "sibling_score": 0.6930687427520752, "answer_score": 0.5702442169189453, "sibling_qid": "KOL-2017-10-1329-Q004", "sibling_text": "purifier is on auto operation and after desludging top hood not closing reason", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Auto operation: bowl fails to close after desludging (‘top hood not closing’)", "cross_family": false } ] }, { "qid": "MUM-2025-11-2472-Q002", "text": "Purifier desludge", "family": "Purifier & Centrifuges", "subtopic": "Desludging", "tid": "MUM-2025-11-2472", "tray": "review", "candidates": [ { "answer_id": "PUR-DSL-001", "score": 0.7445772290229797, "sibling_score": 0.7445772290229797, "answer_score": 0.5388622581958771, "sibling_qid": "MUM-2025-05-2795-Q002", "sibling_text": "purifier desludge", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Manual desludging of a purifier — the step-by-step procedure", "cross_family": false }, { "answer_id": "PURIF-BOWL-P02-001", "score": 0.7247720956802368, "sibling_score": 0.7247720956802368, "answer_score": null, "sibling_qid": "KOL-2023-07-3628-Q004", "sibling_text": "purifier manual desludging", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Bowl opening, closing & manual desludging — mechanism, manual operation, failure causes", "cross_family": false }, { "answer_id": "PUR-BOWL-P03-FINAL-1-003", "score": 0.6620747447013855, "sibling_score": 0.6620747447013855, "answer_score": null, "sibling_qid": "KOL-2021-09-3457-Q001", "sibling_text": "purifier water side sludge coming reasons", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "3. Overflow, Oil-Over-Water and Sludge Carry-Over — Causes, Checks and After-Overhaul Action", "cross_family": false } ] }, { "qid": "MUM-2025-11-2474-Q001", "text": "Type of engine", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2025-11-2474", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.7996186017990112, "sibling_score": 0.7996186017990112, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.7920165657997131, "sibling_score": 0.7920165657997131, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-001", "score": 0.45196284651756286, "sibling_score": null, "answer_score": 0.45196284651756286, "sibling_qid": "", "sibling_text": "1 turbocharger type main engine vs generator engine compressor is centrifugal in both cases only the turbine type differs large slow speed main engine axial flow turbine single stage constant pressure system", "sibling_family": "", "via": "answer_title", "answer_title": "1. Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "MUM-2025-11-2475-Q002", "text": "If no certification what will happen", "family": "Surveys - Statutory", "subtopic": "Detention / Clear Ground", "tid": "MUM-2025-11-2475", "tray": "new", "candidates": [ { "answer_id": "CERT-LIST-P01-001", "score": 0.5220909714698792, "sibling_score": 0.5220909714698792, "answer_score": null, "sibling_qid": "CHE-2025-08-0020-Q004", "sibling_text": "certification", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "List the statutory certificates carried onboard a ship.", "cross_family": false }, { "answer_id": "CERT-LIST-P02-005", "score": 0.5063218474388123, "sibling_score": 0.5063218474388123, "answer_score": null, "sibling_qid": "KOL-2026-01-4082-Q010", "sibling_text": "certificates issued by class only not flag state", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Class certificate / classification certificate", "cross_family": false }, { "answer_id": "CERT-LIST-P03-001", "score": 0.4938766062259674, "sibling_score": 0.4938766062259674, "answer_score": 0.3101931124925613, "sibling_qid": "MUM-2025-08-0375-Q011", "sibling_text": "certificates under annex ii", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "MARPOL, AFS & annex-specific certificates", "cross_family": false } ] }, { "qid": "MUM-2025-11-2477-Q001", "text": "Cast iron welding rod", "family": "Workshop & Welding", "subtopic": "Cast Iron Welding", "tid": "MUM-2025-11-2477", "tray": "review", "candidates": [ { "answer_id": "WELD-B-001", "score": 0.7370755076408386, "sibling_score": 0.7370755076408386, "answer_score": 0.46531674861907957, "sibling_qid": "MUM-2026-05-3211-Q005", "sibling_text": "cast iron welding", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding & crack-repair of aluminium and cast iron, including metal stitching", "cross_family": false }, { "answer_id": "LH-ELEC-003", "score": 0.5050275057554244, "sibling_score": null, "answer_score": 0.5050275057554244, "sibling_qid": "", "sibling_text": "3 how do you select or order the correct welding electrode or rod match to base material and strength first mild steel high tensile stainless cast iron this fixes the electrode family then coating type for the duty rutile e g e6013 general basic low hydrogen e7018 crack sensitive or high tensile", "sibling_family": "", "via": "answer_title", "answer_title": "3. How do you select or order the correct welding electrode or rod?", "cross_family": false }, { "answer_id": "LH-ELEC-006", "score": 0.4732518374919891, "sibling_score": null, "answer_score": 0.4732518374919891, "sibling_qid": "", "sibling_text": "6 how would you approach a cast iron valve repair when the examiner probes welding and low hydrogen electrodes first response replace or fit a sound same size valve a welded cast iron repair is a stop gap not equal to new if welding cast iron not a plain mild steel low hydrogen rod the high carbon makes a hard brittle cracking weld", "sibling_family": "", "via": "answer_title", "answer_title": "6. How would you approach a cast-iron valve repair when the examiner probes welding and low-hydrogen electrodes?", "cross_family": false } ] }, { "qid": "MUM-2025-11-2479-Q001", "text": "Type of ship sail ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-11-2479", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.7662932276725769, "sibling_score": 0.7662932276725769, "answer_score": null, "sibling_qid": "MUM-2026-06-3459-Q001", "sibling_text": "type of ship sail and status of other function", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7609615921974182, "sibling_score": 0.7609615921974182, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7403994798660278, "sibling_score": 0.7403994798660278, "answer_score": null, "sibling_qid": "CHE-2026-03-0253-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "MUM-2025-11-2479-Q001S2", "text": "Air vane motor kept in Workshop table How to overhauling ?Checks ? If vanes wear out clearance increase what to do ?", "family": "", "subtopic": "", "tid": "MUM-2025-11-2479", "tray": "review", "candidates": [ { "answer_id": "EXV-P02-001", "score": 0.6728081703186035, "sibling_score": 0.6728081703186035, "answer_score": null, "sibling_qid": "KOC-2026-01-1091-Q003", "sibling_text": "exh valve overhaul and check what clearances", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve overhaul & dismantling — procedure and precautions", "cross_family": false }, { "answer_id": "AE-CRP-003", "score": 0.6270704865455627, "sibling_score": 0.6270704865455627, "answer_score": null, "sibling_qid": "KOL-2025-06-3785-Q006", "sibling_text": "checks on ae piston and clearances to be taken with clearance values i just answered clearance will be mentioned on the manual", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE piston, ring and groove checks; piston material", "cross_family": false }, { "answer_id": "TC-OVHL-001", "score": 0.6265444755554199, "sibling_score": 0.6265444755554199, "answer_score": null, "sibling_qid": "KOL-2025-03-3758-Q003", "sibling_text": "step by step asked the complete overhaul procedure how you clean the blades and casing how to check trueness of the shaft what all clearances will you check value of the clearances", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Main-engine turbocharger overhaul — procedure and post-overhaul checks", "cross_family": false } ] }, { "qid": "MUM-2025-11-2481-Q001", "text": "Introduction About clg ,company …", "family": "Status & Introduction", "subtopic": "Company Introduction", "tid": "MUM-2025-11-2481", "tray": "new", "candidates": [ { "answer_id": "CLC-CIV-A-006", "score": 0.45299041271209717, "sibling_score": 0.45299041271209717, "answer_score": 0.2551616281270981, "sibling_qid": "KOC-2026-01-2086-Q003", "sibling_text": "clc fund", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Difference between CLC, the Fund and the Supplementary Fund", "cross_family": true }, { "answer_id": "CLC-CIV-A-001", "score": 0.43665963411331177, "sibling_score": 0.43665963411331177, "answer_score": null, "sibling_qid": "KOL-2025-09-1084-Q004", "sibling_text": "what is clc full objective and requirement", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "CLC Convention — objective, scope and shipowner liability", "cross_family": true }, { "answer_id": "CLC-CIV-A-002", "score": 0.3906199336051941, "sibling_score": 0.3906199336051941, "answer_score": null, "sibling_qid": "KOC-2022-08-0088-Q012", "sibling_text": "explain clc and its latest amendments", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "CLC liability limits, SDR values and amendments", "cross_family": true } ] }, { "qid": "MUM-2025-11-2481-Q002", "text": "Bearing meaning? Like 6205", "family": "General Marine Engineering", "subtopic": "", "tid": "MUM-2025-11-2481", "tray": "review", "candidates": [ { "answer_id": "BRG-NOM-001", "score": 0.774639368057251, "sibling_score": 0.774639368057251, "answer_score": 0.4390327990055084, "sibling_qid": "MUM-2026-06-3447-Q002", "sibling_text": "bearing meaning like 6205", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Bearing Numbers, Suffixes and What to State When Ordering", "cross_family": true }, { "answer_id": "STT-BRG-008", "score": 0.39004699289798733, "sibling_score": null, "answer_score": 0.39004699289798733, "sibling_qid": "", "sibling_text": "7 stern tube bearings number size fixing clearance weardown and high temperature", "sibling_family": "", "via": "answer_title", "answer_title": "7. Stern tube bearings — number, size, fixing, clearance, weardown and high-temperature", "cross_family": false }, { "answer_id": "BCL-592-005", "score": 0.38254644870758053, "sibling_score": null, "answer_score": 0.38254644870758053, "sibling_qid": "", "sibling_text": "what provision is made in the bearing itself to accommodate low clearance the answer the examiner is listening for is overlay also called the overlayer it is a thin soft ductile running surface layer over the bearing material on man b w crosshead bearings a lead based overlayer composition thickness and any barrier or flash layers are maker engine and generation specific quote them only from the a", "sibling_family": "", "via": "answer_title", "answer_title": "What provision is made in the bearing itself to accommodate low clearance?", "cross_family": false } ] }, { "qid": "MUM-2025-11-2481-Q007", "text": "Gusset in boiler", "family": "Boilers - Construction & Components", "subtopic": "Ogee Ring", "tid": "MUM-2025-11-2481", "tray": "new", "candidates": [ { "answer_id": "OGEE-RING-001", "score": 0.5897411108016968, "sibling_score": 0.5897411108016968, "answer_score": 0.40455089062452315, "sibling_qid": "KOL-2022-03-3525-Q005", "sibling_text": "ogee ring in boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "The ogee ring: what it is, where it sits, its purpose, and how it's formed and connected", "cross_family": false }, { "answer_id": "SH-332-005", "score": 0.586871325969696, "sibling_score": 0.586871325969696, "answer_score": null, "sibling_qid": "KOL-2025-07-1999-Q005", "sibling_text": "attemperator in boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Desuperheater / attemperator: what, why, and superheat control", "cross_family": false }, { "answer_id": "BLR-GG-001", "score": 0.5778675675392151, "sibling_score": 0.5778675675392151, "answer_score": 0.39683484733104707, "sibling_qid": "KOC-2025-09-0657-Q005", "sibling_text": "boiler gauge glass tightening", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "How do you overhaul, repair, renew, assemble or tighten a boiler gauge glass?", "cross_family": false } ] }, { "qid": "MUM-2025-11-2481-Q009", "text": "Function of detune and damper ?", "family": "2-Stroke - Structure & Tie Rods", "subtopic": "Vibration / Balancing", "tid": "MUM-2025-11-2481", "tray": "review", "candidates": [ { "answer_id": "VIB-BAL-B-004", "score": 0.778725266456604, "sibling_score": 0.778725266456604, "answer_score": 0.5215129971504211, "sibling_qid": "MUM-2026-06-3447-Q009", "sibling_text": "function of detunes and damper", "sibling_family": "2-Stroke - Structure & Tie Rods", "via": "sibling", "answer_title": "Detuner / detuning wheel versus damper", "cross_family": false }, { "answer_id": "VIB-BAL-B-002", "score": 0.576280415058136, "sibling_score": 0.576280415058136, "answer_score": null, "sibling_qid": "CHE-2026-09-3929-Q002", "sibling_text": "what is axial vibration damper detunes", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Axial vibration and the axial vibration damper", "cross_family": true }, { "answer_id": "VIB-BAL-A-006", "score": 0.44027578830718994, "sibling_score": null, "answer_score": 0.44027578830718994, "sibling_qid": "", "sibling_text": "vib a 06 types of vibration dampers and compensators and where they are located torsional vibration damper detuner crankshaft free fore end viscous silicone damper spring e g geislinger damper or tuning wheel detuner controls torsional vibration of the crankshaft and shafting construction detail dampers volume axial vibration damper crankshaft fore end oil damped piston collar and split housing fo", "sibling_family": "", "via": "answer_title", "answer_title": "VIB-A-06 — Types of vibration dampers and compensators, and where they are located", "cross_family": false } ] }, { "qid": "MUM-2025-11-2481-Q009S2", "text": "Screw pump ?", "family": "", "subtopic": "", "tid": "MUM-2025-11-2481", "tray": "review", "candidates": [ { "answer_id": "PCD-P05-02", "score": 0.7563469409942627, "sibling_score": 0.7563469409942627, "answer_score": 0.565196567773819, "sibling_qid": "MUM-2024-11-2252-Q005", "sibling_text": "screw pump working", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Screw pump — construction, working, types, drive arrangement, clearances, why preferred over gear", "cross_family": false }, { "answer_id": "PCP-BF01-001", "score": 0.6987510323524475, "sibling_score": 0.6987510323524475, "answer_score": 0.466109436750412, "sibling_qid": "KOC-2026-08-2103-Q007", "sibling_text": "mono screw pump", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "What is a progressive cavity pump — construction and working", "cross_family": false }, { "answer_id": "CPFE-583-016", "score": 0.45918134450912473, "sibling_score": null, "answer_score": 0.45918134450912473, "sibling_qid": "", "sibling_text": "loading through the pump flow path and direction of rotation flow axial in at the suction bell radial out through the impeller into the volute up the discharge pipe to the top plate rotation as marked wrong rotation still pumps but with badly reduced head it is a trap not a stoppage", "sibling_family": "", "via": "answer_title", "answer_title": "Loading through the pump, flow path and direction of rotation", "cross_family": false } ] }, { "qid": "MUM-2025-11-2481-Q009S4", "text": "Diagram of bearing ?", "family": "", "subtopic": "", "tid": "MUM-2025-11-2481", "tray": "new", "candidates": [ { "answer_id": "THRUST-BRG-B-003", "score": 0.6475552320480347, "sibling_score": 0.6475552320480347, "answer_score": null, "sibling_qid": "KOL-2018-10-1423-Q003", "sibling_text": "michel pad bearing draw crossectional diagram how it tilt", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Michell / tilting-pad / collar thrust bearing — working principle", "cross_family": false }, { "answer_id": "STS-P02-002", "score": 0.615225076675415, "sibling_score": 0.615225076675415, "answer_score": null, "sibling_qid": "KOL-2022-07-1696-Q004", "sibling_text": "how stern tube bearing is lubricated line diagram", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "STS-P02-02 - Stern tube lubrication, header tank and oil properties", "cross_family": false }, { "answer_id": "STT-BRG-008", "score": 0.584050178527832, "sibling_score": 0.584050178527832, "answer_score": null, "sibling_qid": "KOC-2023-03-0978-Q009", "sibling_text": "gave stern bearing dia and to find wear down", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "7. Stern tube bearings — number, size, fixing, clearance, weardown and high-temperature", "cross_family": false } ] }, { "qid": "MUM-2025-11-2484-Q001", "text": "Engine sailed MC-C Type of ship", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "MUM-2025-11-2484", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.6826618313789368, "sibling_score": 0.6826618313789368, "answer_score": null, "sibling_qid": "MUM-2026-06-3490-Q006", "sibling_text": "engine sailed type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "MCC-MEB-P01-001", "score": 0.6462897658348083, "sibling_score": 0.6462897658348083, "answer_score": null, "sibling_qid": "KOC-2022-07-2031-Q002", "sibling_text": "type of ship engine model 6s70mc c c means compact explain", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "MC-C (\"Compact\") engine — design and the main constructional differences from MC", "cross_family": true }, { "answer_id": "ETP-344-P01-001", "score": 0.6419205069541931, "sibling_score": 0.6419205069541931, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q001", "sibling_text": "type of ship sailed and engines details", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false } ] }, { "qid": "MUM-2025-11-2485-Q003", "text": "■Boiler water tests. Why phosphate test? What happens if alkalinity is high? Chemicals to control oxygen level?", "family": "Boilers - Water Treatment & Chemistry", "subtopic": "Boiler Water Treatment / Chemical Dosing", "tid": "MUM-2025-11-2485", "tray": "review", "candidates": [ { "answer_id": "BWT-B-002", "score": 0.8688342571258545, "sibling_score": 0.8688342571258545, "answer_score": 0.600817883014679, "sibling_qid": "MUM-2026-06-3516-Q003", "sibling_text": "boiler water tests why phosphate test what happens if alkalinity is high chemicals to control oxygen level", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Why is phosphate tested and maintained in boiler water, and what does phosphate hideout indicate?", "cross_family": true }, { "answer_id": "BWT-B-001", "score": 0.69534832239151, "sibling_score": 0.69534832239151, "answer_score": 0.5917170673608779, "sibling_qid": "KOL-2016-08-2068-Q018", "sibling_text": "boiler water test p alkalinity t alkalinity and why", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Why are P, T and M alkalinity tests done in boiler water, and how are the results read?", "cross_family": true }, { "answer_id": "BWTEST-A-001", "score": 0.693926215171814, "sibling_score": 0.693926215171814, "answer_score": 0.601337644457817, "sibling_qid": "KOL-2019-05-3240-Q001", "sibling_text": "enlist all boiler water test chemicals incorporated and purpose of that chemical phospate reserve purpose value in ppm and its end product precipated or dissolved", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": true } ] }, { "qid": "MUM-2025-11-2486-Q001", "text": "Type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-11-2486", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.837036669254303, "sibling_score": 0.837036669254303, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.801808774471283, "sibling_score": 0.801808774471283, "answer_score": 0.5473706603050231, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8005447387695312, "sibling_score": 0.8005447387695312, "answer_score": 0.5217237085103988, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2025-11-2486-Q002", "text": "Crevices crossion?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "", "tid": "MUM-2025-11-2486", "tray": "new", "candidates": [ { "answer_id": "CORR-DEZ-004", "score": 0.5192617177963257, "sibling_score": 0.5192617177963257, "answer_score": 0.3339102238416672, "sibling_qid": "MUM-2026-06-3505-Q002", "sibling_text": "crevices corrosion", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What is crevice corrosion?", "cross_family": false }, { "answer_id": "SUB-CORR-001", "score": 0.47752678394317627, "sibling_score": 0.47752678394317627, "answer_score": null, "sibling_qid": "CHE-2026-01-0100-Q004", "sibling_text": "substantial corrosion cross", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "SUB-CORR-01 — What is substantial corrosion, and how is it identified against survey limits?", "cross_family": true }, { "answer_id": "SCAV-323-P02-005", "score": 0.42821091413497925, "sibling_score": 0.42821091413497925, "answer_score": null, "sibling_qid": "CHE-2026-08-3865-Q005", "sibling_text": "scavenge inspection cross ques", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Scavenge-space inspection: preparation, checks and findings", "cross_family": false } ] }, { "qid": "MUM-2025-11-2486-Q003", "text": "Caustic embrittlement and how to minimise", "family": "Boilers - Water Treatment & Chemistry", "subtopic": "Caustic Embrittlement", "tid": "MUM-2025-11-2486", "tray": "review", "candidates": [ { "answer_id": "BLR-CHEM-002", "score": 0.6688953042030334, "sibling_score": 0.6688953042030334, "answer_score": 0.4424089938402176, "sibling_qid": "MUM-2026-06-3505-Q003", "sibling_text": "caustic embrittlement and how to minimise", "sibling_family": "Boilers - Water Treatment & Chemistry", "via": "sibling", "answer_title": "2. Caustic embrittlement", "cross_family": false }, { "answer_id": "BWT-B-001", "score": 0.5784484148025513, "sibling_score": 0.5784484148025513, "answer_score": null, "sibling_qid": "KOL-2025-01-4044-Q012", "sibling_text": "what is caustic embrittlement and how to avoid", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Why are P, T and M alkalinity tests done in boiler water, and how are the results read?", "cross_family": true }, { "answer_id": "CORR-DEZ-002", "score": 0.36148681342601774, "sibling_score": null, "answer_score": 0.36148681342601774, "sibling_qid": "", "sibling_text": "how can dezincification be avoided primary defence is material selection not environment tweaking inhibited arsenical dzr brass small as addition 0 02 0 06 per alloy standard suppresses leaching", "sibling_family": "", "via": "answer_title", "answer_title": "How can dezincification be avoided?", "cross_family": false } ] }, { "qid": "MUM-2025-11-2487-Q001", "text": "Type of ship and Engine", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "MUM-2025-11-2487", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8330981135368347, "sibling_score": 0.8330981135368347, "answer_score": null, "sibling_qid": "MUM-2025-08-2357-Q001", "sibling_text": "type of ship type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.8268991112709045, "sibling_score": 0.8268991112709045, "answer_score": null, "sibling_qid": "MUM-2026-07-3668-Q004", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7613657712936401, "sibling_score": 0.7613657712936401, "answer_score": null, "sibling_qid": "KOL-2025-12-2031-Q002", "sibling_text": "type of ship and engine sailed engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "MUM-2025-11-2490-Q002", "text": "BUTTERFLY VALVE SEAT DAMAGED NO SPARES HOW TO RECTIFY LEAK?", "family": "Workshop & Welding", "subtopic": "Gasket Material", "tid": "MUM-2025-11-2490", "tray": "new", "candidates": [ { "answer_id": "GV-330-002", "score": 0.6429120898246765, "sibling_score": 0.6429120898246765, "answer_score": 0.46778940260410307, "sibling_qid": "KOL-2026-07-4289-Q004", "sibling_text": "gate valve defects and seat repair steps", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Gate valve overhaul, checks & the stuck / not-operating valve", "cross_family": true }, { "answer_id": "LH-ELEC-006", "score": 0.6258005499839783, "sibling_score": 0.6258005499839783, "answer_score": null, "sibling_qid": "MUM-2025-12-0992-Q012", "sibling_text": "valve broken from bridge how to repair i said to salvage from a old same sized valve he shouting then i said by welding again asking cast iron how to weld lh electrode explained", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "6. How would you approach a cast-iron valve repair when the examiner probes welding and low-hydrogen electrodes?", "cross_family": false }, { "answer_id": "METAL-LOCK-003", "score": 0.6253269910812378, "sibling_score": 0.6253269910812378, "answer_score": 0.4618397831916809, "sibling_qid": "MUM-2025-05-0277-Q020", "sibling_text": "cage of main cooling sea water pump valve has crack no spare on board how to repair", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Cold repair of cracked cast-iron parts: liner, pump/valve cage, loose bearing seat", "cross_family": false } ] }, { "qid": "MUM-2025-11-2490-Q003", "text": "BOILER 10 DAYS WET LAY UP?", "family": "Boilers - Safety & Survey", "subtopic": "Wet/Dry Layup", "tid": "MUM-2025-11-2490", "tray": "new", "candidates": [ { "answer_id": "BLR-SURV-P01-001", "score": 0.568061888217926, "sibling_score": 0.568061888217926, "answer_score": null, "sibling_qid": "KOL-2024-03-3677-Q005", "sibling_text": "boiler survey how to prepare for water drum what all u ll prepare in water drum before surveyor comes for inspection in water drum one of the boiler s plate thickness has reduced by 10 what u ll do now and how u ll make boiler ready to put back in service", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-002", "score": 0.5599843859672546, "sibling_score": 0.5599843859672546, "answer_score": null, "sibling_qid": "KOL-2020-10-3354-Q007", "sibling_text": "accumulation pr test of boiler why 7 mins for water tube when accumulation test done wait outside no decider by rao sir gods grace", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Acceptance limits and durations — the accumulation limit, the maximum test periods, and the action if the limit is exceeded", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.556073009967804, "sibling_score": 0.556073009967804, "answer_score": null, "sibling_qid": "KOL-2025-11-3889-Q003", "sibling_text": "period of boiler survey", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "MUM-2025-11-2491-Q001", "text": "& 4b Type of ship, exam status, engine type and nomenclature", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "MUM-2025-11-2491", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.6793680191040039, "sibling_score": 0.6793680191040039, "answer_score": null, "sibling_qid": "MUM-2026-05-3139-Q001", "sibling_text": "status of oral and written type of ship sailed container nomenclature of main and auxiliary engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.6599175333976746, "sibling_score": 0.6599175333976746, "answer_score": null, "sibling_qid": "CHE-2026-01-0101-Q001", "sibling_text": "types of ship done and exam status", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "AC-VE-001", "score": 0.6305130124092102, "sibling_score": 0.6305130124092102, "answer_score": null, "sibling_qid": "MUM-2026-01-2904-Q001", "sibling_text": "what type of ship engine power and nomenclature", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Volumetric efficiency: define it, and if it drops how do you improve it (with bumping clearance)?", "cross_family": false } ] }, { "qid": "MUM-2025-11-2495-Q003", "text": "Instruct cadet on wat all to checks in generator during takeover of watch", "family": "Surveys - Statutory", "subtopic": "Planned Maintenance / PMS", "tid": "MUM-2025-11-2495", "tray": "new", "candidates": [ { "answer_id": "ALT-MTN-B-001", "score": 0.6061012744903564, "sibling_score": 0.6061012744903564, "answer_score": null, "sibling_qid": "KOL-2022-07-2579-Q001", "sibling_text": "generator handing over to owner what checks to be done as 2e", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Routine onboard alternator maintenance checks", "cross_family": true }, { "answer_id": "AEDEC-291-003", "score": 0.5543477535247803, "sibling_score": 0.5543477535247803, "answer_score": null, "sibling_qid": "KOL-2017-08-1316-Q009", "sibling_text": "after overhaul of generator wat all checks we do before starting generator", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "3. Pre-start checks after decarb / recommissioning", "cross_family": true }, { "answer_id": "SYNC-D-001", "score": 0.5017377138137817, "sibling_score": 0.5017377138137817, "answer_score": null, "sibling_qid": "KOL-2025-08-2838-Q002", "sibling_text": "checks to be carried out when two generators are not synchronised", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Closing the breaker out of phase — wrong-synchronizing consequences", "cross_family": true } ] }, { "qid": "MUM-2025-11-2495-Q010", "text": "Mechanism of quick closing valve .", "family": "Fuel Oil System", "subtopic": "Service / Settling Tank", "tid": "MUM-2025-11-2495", "tray": "review", "candidates": [ { "answer_id": "QCV-001", "score": 0.7467604875564575, "sibling_score": 0.7467604875564575, "answer_score": null, "sibling_qid": "MUM-2026-05-3265-Q002", "sibling_text": "quick closing valve mechanism", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Quick closing valve — construction and what it is", "cross_family": true }, { "answer_id": "QCV-002", "score": 0.6303119659423828, "sibling_score": 0.6303119659423828, "answer_score": 0.5851822286844254, "sibling_qid": "MUM-2026-05-3176-Q005", "sibling_text": "how to reset quick closing valve", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Quick closing valve — operation, air activation and reset", "cross_family": true }, { "answer_id": "SLOWTURN-BT-001", "score": 0.5896289944648743, "sibling_score": 0.5896289944648743, "answer_score": null, "sibling_qid": "MUM-2026-05-3176-Q006", "sibling_text": "how slow turning valve works", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Slow turning of the main engine — the slow-turning valve and the failure alarm", "cross_family": true } ] }, { "qid": "MUM-2025-11-2496-Q007", "text": "Internal- Tightening procedure of Holding down bolts and how often we check", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Holding Down Bolts", "tid": "MUM-2025-11-2496", "tray": "review", "candidates": [ { "answer_id": "TBR-TT-P02-001", "score": 0.7775774598121643, "sibling_score": 0.7775774598121643, "answer_score": null, "sibling_qid": "MUM-2026-05-3341-Q007", "sibling_text": "tightening procedure of holding down bolts and how often we check internal ques", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Tie rod tightening / hydraulic tensioning procedure", "cross_family": false }, { "answer_id": "TBR-TT-P02-002", "score": 0.733182966709137, "sibling_score": 0.733182966709137, "answer_score": null, "sibling_qid": "MUM-2026-02-2549-Q006", "sibling_text": "holding down bolts tightness check", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Checking tie rod tightness / slackness — stopped and running", "cross_family": false }, { "answer_id": "FB-COUP-001", "score": 0.6207373142242432, "sibling_score": 0.6207373142242432, "answer_score": null, "sibling_qid": "MUM-2026-06-3439-Q003", "sibling_text": "how the fitted bolts are bolted", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What fitted bolts are, what they do, and where they sit onboard", "cross_family": false } ] }, { "qid": "MUM-2025-11-2864-Q001", "text": "Date 04.11.2025 Safety Attempt:3 Internal :v Kamat Ext :s. kamat", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-11-2864", "tray": "new", "candidates": [ { "answer_id": "FCP-001", "score": 0.45381617546081543, "sibling_score": 0.45381617546081543, "answer_score": null, "sibling_qid": "CHE-2025-12-0328-Q004", "sibling_text": "fire plane content 31 12 2025 external shenoy internal po", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "What is the fire control plan, and what does it show — including bulkhead types and escape routes?", "cross_family": true }, { "answer_id": "ETP-344-P01-001", "score": 0.42564529180526733, "sibling_score": 0.42564529180526733, "answer_score": null, "sibling_qid": "CHE-2025-12-0467-Q007", "sibling_text": "power calculation sfoc date 30 12 2025 internal ss moorthy sir external patro sir", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": true }, { "answer_id": "PIST-CSI-A-003", "score": 0.4023153483867645, "sibling_score": 0.4023153483867645, "answer_score": null, "sibling_qid": "KOL-2025-08-2010-Q001", "sibling_text": "date 25 08 2025 ext sarkar int srinivasan 1 piston parts and material", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston materials: crown, skirt, rod, rings and coatings", "cross_family": true } ] }, { "qid": "MUM-2025-11-2864-Q002", "text": "Type of ship -LPG X - what and how is pumping arrangement in your ship. 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Couldn't explain properly about this but was OK.", "family": "", "subtopic": "", "tid": "MUM-2025-11-2864", "tray": "new", "candidates": [ { "answer_id": "IM-GW-C-001", "score": 0.47958138585090637, "sibling_score": 0.47958138585090637, "answer_score": null, "sibling_qid": "KOC-2024-01-1318-Q005", "sibling_text": "crawling and cogging how to avoid", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Cogging, crawling and harmonic effects in induction motors", "cross_family": false }, { "answer_id": "VIB-BAL-A-001", "score": 0.4624687433242798, "sibling_score": 0.4624687433242798, "answer_score": null, "sibling_qid": "KOL-2021-08-1622-Q003", "sibling_text": "prevent", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "VIB-A-01 — Engine vibration — what it is, its types and causes, and how it is controlled", "cross_family": false }, { "answer_id": "EXD-EXI-A-002", "score": 0.4519917964935303, "sibling_score": 0.4519917964935303, "answer_score": null, "sibling_qid": "KOC-2025-12-1667-Q007", "sibling_text": "what all safeties are there in the hazardous region i told ex d ex i exp exn exe he was expecting more regarding this ex i couldn t remember so i started explaining exi internal no questions", "sibling_family": "", "via": "sibling", "answer_title": "Ex d (flameproof / explosion-proof) — construction, shipboard applications and maintenance", "cross_family": false } ] }, { "qid": "MUM-2025-11-2864-Q014", "text": "In MLC there are 2 parts tell me that . I couldn't understand what 2 parts , then i said DMLC 1 and DMLC 2 .", "family": "MLC", "subtopic": "MLC / DMLC / Work-Rest", "tid": "MUM-2025-11-2864", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.6551660299301147, "sibling_score": 0.6551660299301147, "answer_score": 0.3433689296245575, "sibling_qid": "MUM-2026-01-0673-Q004", "sibling_text": "dmlc 1 and dmlc 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "MEB-MEC-P03-001", "score": 0.26878009736537933, "sibling_score": null, "answer_score": 0.26878009736537933, "sibling_qid": "", "sibling_text": "me b vs me c the core difference", "sibling_family": "", "via": "answer_title", "answer_title": "ME-B vs ME-C — the core difference", "cross_family": false }, { "answer_id": "ISM-ELEM-003", "score": 0.268136690557003, "sibling_score": null, "answer_score": 0.268136690557003, "sibling_qid": "", "sibling_text": "elements chapters structure of the ism code part a implementation the 12 elements 1 general 1 1 definitions 1 2 objectives 1 3 application 1 4 functional requirements for an sms", "sibling_family": "", "via": "answer_title", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": false } ] }, { "qid": "MUM-2025-11-2864-Q015", "text": "Tell me whole process to get mlc certi . So explained everything (more rhan what was written in mlc ■)", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2025-11-2864", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-006", "score": 0.5946173071861267, "sibling_score": 0.5946173071861267, "answer_score": 0.32570220828056334, "sibling_qid": "MUM-2026-06-3656-Q002", "sibling_text": "certificates under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false }, { "answer_id": "ISM-SMC-B-001", "score": 0.4472768306732178, "sibling_score": 0.4472768306732178, "answer_score": null, "sibling_qid": "KOC-2024-01-0289-Q002", "sibling_text": "procedure to get ism certificates both doc and smc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "SMC — purpose, contents, issue and validity", "cross_family": true }, { "answer_id": "ISMNC-005", "score": 0.40862566232681274, "sibling_score": 0.40862566232681274, "answer_score": null, "sibling_qid": "MUM-2025-12-0632-Q005", "sibling_text": "example of mnc i started with certificates but he wanted something else and stopped me in between", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Give examples of a non-conformity and of a major non-conformity.", "cross_family": true } ] }, { "qid": "MUM-2025-11-2866-Q003", "text": "Type of ship, type of engine", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "MUM-2025-11-2866", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8387683033943176, "sibling_score": 0.8387683033943176, "answer_score": null, "sibling_qid": "MUM-2025-08-2357-Q001", "sibling_text": "type of ship type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.8133381605148315, "sibling_score": 0.8133381605148315, "answer_score": null, "sibling_qid": "MUM-2026-07-3668-Q004", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "AC-VE-001", "score": 0.7722496390342712, "sibling_score": 0.7722496390342712, "answer_score": null, "sibling_qid": "MUM-2026-01-2904-Q001", "sibling_text": "what type of ship engine power and nomenclature", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Volumetric efficiency: define it, and if it drops how do you improve it (with bumping clearance)?", "cross_family": false } ] }, { "qid": "MUM-2025-11-2866-Q007", "text": "Boiler safety valve maximum ■ questions(how to\" Gag \" a safety valve, he wants to hear your practical site experience)", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2025-11-2866", "tray": 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Protection & Relays", "subtopic": "Circuit Fault Types", "tid": "MUM-2025-11-2875", "tray": "review", "candidates": [ { "answer_id": "OC-UV-TRIP-002", "score": 0.6646670699119568, "sibling_score": 0.6646670699119568, "answer_score": null, "sibling_qid": "KOC-2026-04-1751-Q003", "sibling_text": "types of over current trip", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Overcurrent vs overload relay — difference, working, settings and testing", "cross_family": false }, { "answer_id": "CB-ACBVCBSF6-E-001", "score": 0.6636135578155518, "sibling_score": 0.6636135578155518, "answer_score": null, "sibling_qid": "MUM-2026-09-3894-Q002", "sibling_text": "types of cb circuit breaker", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "What are the common types of circuit breakers used onboard and where are ACB, MCB, MCCB, VCB and SF6 breakers applied?", "cross_family": false }, { "answer_id": "EF-DET-P01-001", "score": 0.6518146991729736, "sibling_score": 0.6518146991729736, "answer_score": 0.46612965166568754, "sibling_qid": "KOC-2023-03-1239-Q007", "sibling_text": "open circuit short circuit earth fault", "sibling_family": "", "via": "sibling", "answer_title": "Earth fault / earth leakage — and how it differs from short circuit and open circuit", "cross_family": false } ] }, { "qid": "MUM-2025-11-2875-Q009", "text": "Alternator protections", "family": "Electrical - 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Alternator/generator safeties and protection trips", "cross_family": false }, { "answer_id": "OC-UV-TRIP-006", "score": 0.5761495053768158, "sibling_score": null, "answer_score": 0.5761495053768158, "sibling_qid": "", "sibling_text": "trip settings and combined overcurrent undervoltage protection alternator context alternator protection is a suite overcurrent short circuit ansi 50 51 reverse power 32 under voltage 27 over under frequency 81 earth fault 50n 51n and differential 87 on larger machines reverse power trips to prevent the alternator motoring when its prime mover loses drive protects the engine and the bus", "sibling_family": "", "via": "answer_title", "answer_title": "Trip settings and combined overcurrent / undervoltage protection — alternator context", "cross_family": false }, { "answer_id": "ALT-MTN-B-001", "score": 0.5541283190250397, "sibling_score": null, "answer_score": 0.5541283190250397, "sibling_qid": "", "sibling_text": "routine onboard alternator maintenance checks clean air path dry low pressure air blow through cooler and filters clear keep winding temperature in band insulation resistance to earth on a megger trended over time investigate a falling trend do not wait for the alarm", "sibling_family": "", "via": "answer_title", "answer_title": "Routine onboard alternator maintenance checks", "cross_family": false } ] }, { "qid": "MUM-2025-11-2876-Q001", "text": "Total Attempt no-9 Mep Attempt-4 Date 27.11.2025. Int gopi sir Ext sanjib sir", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-11-2876", "tray": "new", "candidates": [ { "answer_id": "PIST-CSI-A-003", "score": 0.41451865434646606, "sibling_score": 0.41451865434646606, "answer_score": null, "sibling_qid": "KOL-2025-08-2010-Q001", "sibling_text": "date 25 08 2025 ext sarkar int srinivasan 1 piston parts and material", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston materials: crown, skirt, rod, rings and coatings", "cross_family": true }, { "answer_id": "ETP-344-P01-001", "score": 0.40657269954681396, "sibling_score": 0.40657269954681396, "answer_score": null, "sibling_qid": "CHE-2025-12-0467-Q007", "sibling_text": "power calculation sfoc date 30 12 2025 internal ss moorthy sir external patro sir", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": true }, { "answer_id": "IMODCS-001", "score": 0.3850608766078949, "sibling_score": 0.3850608766078949, "answer_score": null, "sibling_qid": "KOL-2026-02-1191-Q006", "sibling_text": "isps code srinivasa sir decider what are all the data for imo dcs key ans hours underway", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is the IMO DCS? What data is collected, over what period, and what are the “gradings”?", "cross_family": true } ] }, { "qid": "MUM-2025-12-0613-Q001", "text": "Safety He asked What type of vessel sailed ( Gas tanker )..then From where u did Preparatory..", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-12-0613", "tray": "review", "candidates": [ { "answer_id": "IBC-BCH-B-004", "score": 0.6994654536247253, "sibling_score": 0.6994654536247253, "answer_score": null, "sibling_qid": "MUM-2026-03-0859-Q001", "sibling_text": "pre sea and vessel type chemical tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Certificate of Fitness and MARPOL Annex II in practice", "cross_family": false }, { "answer_id": "IGC-GAS-010", "score": 0.6834957599639893, "sibling_score": 0.6834957599639893, "answer_score": null, "sibling_qid": "KOC-2026-05-0030-Q001", "sibling_text": "safeties on gas tanker on deck", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Cargo-handling deck safeties and precautions (loading and discharge)", "cross_family": true }, { "answer_id": "LPG-LNG-009", "score": 0.6789649724960327, "sibling_score": 0.6789649724960327, "answer_score": null, "sibling_qid": "CHE-2026-04-0164-Q001", "sibling_text": "type of ship sailed lpg carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Gas-carrier fundamentals and ship-specific traps", "cross_family": false } ] }, { "qid": "MUM-2025-12-0613-Q004", "text": "■Code for missed entry in ORB", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "MUM-2025-12-0613", "tray": "new", "candidates": [ { "answer_id": "OWS-ORB-006", "score": 0.6450787782669067, "sibling_score": 0.6450787782669067, "answer_score": null, "sibling_qid": "MUM-2025-09-0447-Q007", "sibling_text": "orb entries", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "6. Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-004", "score": 0.6215304136276245, "sibling_score": 0.6215304136276245, "answer_score": null, "sibling_qid": "KOC-2026-02-0805-Q007", "sibling_text": "weekly entries of orb code item no bunker missed entry", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Weekly ORB entries — the mandatory sludge retention record, the bunker entry, and what is voluntary", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-005", "score": 0.6174671649932861, "sibling_score": 0.6174671649932861, "answer_score": 0.3343844637274742, "sibling_qid": "KOC-2026-05-0044-Q003", "sibling_text": "bunker miss entry procedure for orb", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "A missed bunker entry — how to add it, and how that differs from correcting a wrong entry", "cross_family": false } ] }, { "qid": "MUM-2025-12-0614-Q006", "text": "Slop discharge criteria", "family": "MARPOL - Annex I (Oil)", "subtopic": "Oil Discharge Criteria", "tid": "MUM-2025-12-0614", "tray": "review", "candidates": [ { "answer_id": "ODC-012", "score": 0.7627888321876526, "sibling_score": 0.7627888321876526, "answer_score": null, "sibling_qid": "MUM-2026-04-0914-Q004", "sibling_text": "slop discharge criteria", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Slop tank — arrangement, purpose and how a discharge is actually made", "cross_family": false }, { "answer_id": "OILRES-DISCH-TOPIC467-FINAL-004", "score": 0.610720694065094, "sibling_score": 0.610720694065094, "answer_score": null, "sibling_qid": "CHE-2026-05-0620-Q002", "sibling_text": "slop tank capacity criteria why what all residues in slop what all can be done to those residue discharge criteria and reception facility", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Cargo oil residues and the slop tank — purpose, capacity, handling, discharge criteria and reception facilities", "cross_family": false }, { "answer_id": "COT-P03-09", "score": 0.5949556827545166, "sibling_score": 0.5949556827545166, "answer_score": null, "sibling_qid": "MUM-2026-03-0812-Q003", "sibling_text": "criteria for discharge in npdes", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "US NPDES / VGP discharge compliance — framework, criteria, California layer, records and enforcement", "cross_family": true } ] }, { "qid": "MUM-2025-12-0615-Q007", "text": "■Me and ae nomenclature", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2025-12-0615", "tray": "review", "candidates": [ { "answer_id": "ENG-NOM-001", "score": 0.7059584856033325, "sibling_score": 0.7059584856033325, "answer_score": 0.4089864432811737, "sibling_qid": "MUM-2026-07-3841-Q002", "sibling_text": "me and ae nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Nomenclature of ME and AE (asked together)", "cross_family": true }, { "answer_id": "ENG-NOM-005", "score": 0.5833209156990051, "sibling_score": 0.5833209156990051, "answer_score": null, "sibling_qid": "MUM-2026-02-1272-Q003", "sibling_text": "me ae engine nomenclature", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.5536396503448486, "sibling_score": 0.5536396503448486, "answer_score": null, "sibling_qid": "MUM-2025-07-1149-Q002", "sibling_text": "construction difference between me and ae", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": true } ] }, { "qid": "MUM-2025-12-0616-Q002", "text": "Gangway load test", "family": "Auxiliary Equipment", "subtopic": "Dynamic Load Test", "tid": "MUM-2025-12-0616", "tray": "new", "candidates": [ { "answer_id": "BDC-P04-03", "score": 0.5238652229309082, "sibling_score": 0.5238652229309082, "answer_score": null, "sibling_qid": "MUM-2022-09-1355-Q004", "sibling_text": "load test manually", "sibling_family": "Electrical - 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Statutory", "subtopic": "Detention / Clear Ground", "tid": "MUM-2025-12-0617", "tray": "new", "candidates": [ { "answer_id": "DCG-003", "score": 0.5925578474998474, "sibling_score": 0.5925578474998474, "answer_score": 0.4244225323200226, "sibling_qid": "KOC-2026-03-0882-Q012", "sibling_text": "psc deficiency code 10", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the PSC deficiency code, which code leads to a detainable deficiency, and can you give an example of a \"clear-ground code\"?", "cross_family": false }, { "answer_id": "DCG-002", "score": 0.5700257420539856, "sibling_score": 0.5700257420539856, "answer_score": null, "sibling_qid": "MUM-2022-10-0061-Q007", "sibling_text": "under psc which conventions can be a reason for detainable deficiency", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What are the reasons for PSC detention and what is a detainable deficiency? Which engine-room deficiencies can detain your ship, which conventions can ground a detainable deficiency, and what is banning by PSC?", "cross_family": false }, { "answer_id": "ISPS-SL-007", "score": 0.5260194540023804, "sibling_score": 0.5260194540023804, "answer_score": null, "sibling_qid": "KOC-2024-12-0492-Q004", "sibling_text": "isps code detainable deficiencies", "sibling_family": "ISPS", "via": "sibling", "answer_title": "ISPS deficiencies and detainable deficiencies", "cross_family": true } ] }, { "qid": "MUM-2025-12-0618-Q001", "text": "Type of ship (Gas)", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-12-0618", "tray": "review", "candidates": [ { "answer_id": "LPG-LNG-009", "score": 0.7272832989692688, "sibling_score": 0.7272832989692688, "answer_score": 0.5277243971824646, "sibling_qid": "MUM-2026-01-0682-Q001", "sibling_text": "type of ship lng tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Gas-carrier fundamentals and ship-specific traps", "cross_family": false }, { "answer_id": "IGC-GAS-004", "score": 0.7075332999229431, "sibling_score": 0.7075332999229431, "answer_score": null, "sibling_qid": "KOL-2025-08-1014-Q002", "sibling_text": "type of ship sailed lpg classification of gas carriers of as per igc code", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Ship-type classification under the IGC Code — 1G / 2G / 2PG / 3G", "cross_family": true }, { "answer_id": "IBC-BCH-B-004", "score": 0.6725286841392517, "sibling_score": 0.6725286841392517, "answer_score": null, "sibling_qid": "MUM-2026-05-3156-Q001", "sibling_text": "type of ships chemical tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Certificate of Fitness and MARPOL Annex II in practice", "cross_family": false } ] }, { "qid": "MUM-2025-12-0618-Q002", "text": "Tank type", "family": "Cargo Ops - Tankers", "subtopic": "Cargo Tank Construction", "tid": "MUM-2025-12-0618", "tray": "review", "candidates": [ { "answer_id": "MARVS-TANK-005", "score": 0.8382692933082581, "sibling_score": 0.8382692933082581, "answer_score": null, "sibling_qid": "MUM-2026-04-0876-Q003", "sibling_text": "tank type", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Gas-carrier ship-type classification — 2G, 2PG and the IGC-code type criteria", "cross_family": false }, { "answer_id": "IGC-IGF-007", "score": 0.7026554346084595, "sibling_score": 0.7026554346084595, "answer_score": null, "sibling_qid": "MUM-2026-02-0742-Q002", "sibling_text": "type of tanks in igc code", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "IGC cargo tank types, containment, barriers and materials", "cross_family": true }, { "answer_id": "GC-TANK-001", "score": 0.7012417912483215, "sibling_score": 0.7012417912483215, "answer_score": 0.42989869713783263, "sibling_qid": "MUM-2026-02-0742-Q003", "sibling_text": "type of independant tanks", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Main cargo containment and independent tank types on LPG and LNG carriers", "cross_family": true } ] }, { "qid": "MUM-2025-12-0618-Q005", "text": "What is precaution is tank ruptures.", "family": "Cargo Ops - Tankers", "subtopic": "Tanker Safety / Deck", "tid": "MUM-2025-12-0618", "tray": "new", "candidates": [ { "answer_id": "TNK-SAFE-BF26-002", "score": 0.6116400957107544, "sibling_score": 0.6116400957107544, "answer_score": null, "sibling_qid": "MUM-2025-10-0517-Q001", "sibling_text": "safety of each tank", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What safeties are provided on the cargo tanks of an oil, crude or chemical tanker?", "cross_family": false }, { "answer_id": "TNK-SAFE-BF26-003", "score": 0.5663951635360718, "sibling_score": 0.5663951635360718, "answer_score": null, "sibling_qid": "MUM-2025-12-1821-Q007", "sibling_text": "explosion proof safety for hazardous area on product tanker", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What safeties, including electrical safeties and Ex ratings, are provided on the deck of a tanker?", "cross_family": false }, { "answer_id": "IGC-GAS-015", "score": 0.5639239549636841, "sibling_score": 0.5639239549636841, "answer_score": null, "sibling_qid": "MUM-2026-09-3981-Q014", "sibling_text": "lng tank safeties", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Cargo tank and critical-valve safeties", "cross_family": false } ] }, { "qid": "MUM-2025-12-0618-Q009", "text": "3 major risks and how to mitigate them while entering in bunker tank. (Doesn't want bookish answers)", "family": "Risk & Safety Management", "subtopic": "Enclosed Space Entry", "tid": "MUM-2025-12-0618", "tray": "review", "candidates": [ { "answer_id": "RISK-RA-D-003", "score": 0.7424705624580383, "sibling_score": 0.7424705624580383, "answer_score": 0.4940683364868164, "sibling_qid": "MUM-2025-11-2864-Q005", "sibling_text": "your are going for bunker tank inspection tell me 3 risk involed in it inadequate ventilation slippery surface heating coil and risk oxy deficiency can leas to death slip and trips burns", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "RA-MGMT-B-001", "score": 0.6897634863853455, "sibling_score": 0.6897634863853455, "answer_score": null, "sibling_qid": "MUM-2026-04-0922-Q006", "sibling_text": "how to carry out risk assessment before entry in bunker tank", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "How is a shipboard risk assessment prepared and carried out?", "cross_family": false }, { "answer_id": "ESE-P01-003", "score": 0.6499324440956116, "sibling_score": 0.6499324440956116, "answer_score": null, "sibling_qid": "MUM-2026-03-0813-Q006", "sibling_text": "enclosed space entry 3 risks associated", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "General enclosed-space entry procedure as second engineer", "cross_family": false } ] }, { "qid": "MUM-2025-12-0618-Q012", "text": "MLC 2006 requirements.Parts of MLC", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2025-12-0618", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-007", "score": 0.4718911349773407, "sibling_score": 0.4718911349773407, "answer_score": 0.27703999280929564, "sibling_qid": "MUM-2026-02-0734-Q007", "sibling_text": "mlc 2006 detainable deficiency", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false }, { "answer_id": "MLC-WRH-B-001", "score": 0.41133782267570496, "sibling_score": 0.41133782267570496, "answer_score": 0.3413797616958618, "sibling_qid": "MUM-2026-06-3623-Q002", "sibling_text": "what requirement are there for dmlc 1", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "MLC-WRH-B-002", "score": 0.41106903553009033, "sibling_score": 0.41106903553009033, "answer_score": null, "sibling_qid": "MUM-2022-07-0027-Q005", "sibling_text": "mlc 2006 wages rest hours", "sibling_family": "MLC", "via": "sibling", "answer_title": "Work and rest hours under MLC — the criteria, the weekly limit, the intervals", "cross_family": false } ] }, { "qid": "MUM-2025-12-0618-Q016", "text": "How to purge the Line what will you use to purge the line.", "family": "Cargo Ops - Tankers", "subtopic": "IG System", "tid": "MUM-2025-12-0618", "tray": "new", "candidates": [ { "answer_id": "AEFP-471-008", "score": 0.48661547899246216, "sibling_score": 0.48661547899246216, "answer_score": 0.29873155951499936, "sibling_qid": "KOL-2026-02-3916-Q004", "sibling_text": "how to purge ae hp pipe", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "How do you purge the AE fuel-pump-to-injector HP pipe after an injector routine or overhaul?", "cross_family": true }, { "answer_id": "COT-P02-12", "score": 0.4653691351413727, "sibling_score": 0.4653691351413727, "answer_score": null, "sibling_qid": "KOC-2025-10-0693-Q004", "sibling_text": "what is purging and gas freeing", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Explain and distinguish cargo-tank inerting, purging, gas freeing and ventilation, including dilution/displacement methods, atmosphere targets and cargo-pump precautions.", "cross_family": false }, { "answer_id": "PUR-OPS-P01-002", "score": 0.45736536383628845, "sibling_score": 0.45736536383628845, "answer_score": null, "sibling_qid": "KOL-2019-08-1479-Q005", "sibling_text": "e line of purifier", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Purifier — principle, working, and how the self-cleaning bowl closes", "cross_family": true } ] }, { "qid": "MUM-2025-12-0618-Q019", "text": "Tank has a top opening why there's opening on the top? Why it is like that.", "family": "Cargo Ops - Tankers", "subtopic": "Cargo Tank Construction", "tid": "MUM-2025-12-0618", "tray": "new", "candidates": [ { "answer_id": "BC-HOPPER-G-002", "score": 0.5763652324676514, "sibling_score": 0.5763652324676514, "answer_score": null, "sibling_qid": "KOL-2025-09-1090-Q007", "sibling_text": "purpose and when top side tank filled", "sibling_family": "", "via": "sibling", "answer_title": "Ballasting the upper hopper / topside tank — when and why", "cross_family": false }, { "answer_id": "BC-HOPPER-G-001", "score": 0.5725438594818115, "sibling_score": 0.5725438594818115, "answer_score": 0.443534442782402, "sibling_qid": "KOL-2018-06-0184-Q006", "sibling_text": "hopper tank why why is this upper tank tapered inclined", "sibling_family": "", "via": "sibling", "answer_title": "Hopper and topside tanks — what they are and their purpose", "cross_family": false }, { "answer_id": "VENT-HD-006", "score": 0.5530489683151245, "sibling_score": 0.5530489683151245, "answer_score": 0.5124687731266021, "sibling_qid": "KOL-2017-03-0065-Q003", "sibling_text": "explain do tank vent", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Tank vent / air-pipe arrangement, and why tanks require ventilation", "cross_family": true } ] }, { "qid": "MUM-2025-12-0618-Q021", "text": "What is tender ship and stiff ship.", "family": "SOLAS", "subtopic": "Angle of Loll / Stiff & Tender", "tid": "MUM-2025-12-0618", "tray": "review", "candidates": [ { "answer_id": "STF-TND-P03-001", "score": 0.7042405009269714, "sibling_score": 0.7042405009269714, "answer_score": 0.4917546153068542, "sibling_qid": "KOL-2022-03-0611-Q003", "sibling_text": "what is tender ship stiff ship", "sibling_family": "", "via": "sibling", "answer_title": "Stiff and tender ships — what they are and how GM drives behaviour", "cross_family": false }, { "answer_id": "FWFB-P02-004", "score": 0.5078494548797607, "sibling_score": 0.5078494548797607, "answer_score": null, "sibling_qid": "KOL-2023-06-0749-Q003", "sibling_text": "ships term brest hook girder framing girder stiffener", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Centre, side, intercostal and longitudinal girders", "cross_family": false }, { "answer_id": "COT-08", "score": 0.49584174156188965, "sibling_score": 0.49584174156188965, "answer_score": null, "sibling_qid": "KOC-2026-02-0810-Q002", "sibling_text": "double hull tanker stability vs single hull tanker", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Single-hull versus double-hull tanker requirements", "cross_family": false } ] }, { "qid": "MUM-2025-12-0618-Q022", "text": "Which GM is large tender of stiff and explain.", "family": "SOLAS", "subtopic": "Angle of Loll / Stiff & Tender", "tid": "MUM-2025-12-0618", "tray": "new", "candidates": [ { "answer_id": "STF-TND-P03-001", "score": 0.40877488255500793, "sibling_score": 0.40877488255500793, "answer_score": 0.3938031166791916, "sibling_qid": "KOL-2025-04-0929-Q002", "sibling_text": "stiff and tender ship", "sibling_family": "", "via": "sibling", "answer_title": "Stiff and tender ships — what they are and how GM drives behaviour", "cross_family": false }, { "answer_id": "STAB-GZ-P04-004", "score": 0.384688138961792, "sibling_score": 0.384688138961792, "answer_score": null, "sibling_qid": "KOC-2025-01-0530-Q004", "sibling_text": "static stability curve increased beam curve changes and effect of gm", "sibling_family": "", "via": "sibling", "answer_title": "Beam, freeboard, GM and the wall-sided curve", "cross_family": false }, { "answer_id": "STAB-GZ-P04-002", "score": 0.3800509572029114, "sibling_score": 0.3800509572029114, "answer_score": null, "sibling_qid": "KOL-2025-11-1128-Q003", "sibling_text": "intact stability criteria asked specifically about 4 different criteria and their value like gm gz", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Intact stability criteria — the IS Code 2008 values", "cross_family": false } ] }, { "qid": "MUM-2025-12-0619-Q001", "text": "Which function appearing", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-12-0619", "tray": "review", "candidates": [ { "answer_id": "IMO-CODES-P03-002", "score": 0.7725128531455994, "sibling_score": 0.7725128531455994, "answer_score": null, "sibling_qid": "MUM-2026-03-0815-Q003", "sibling_text": "which function", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": false }, { "answer_id": "CHK-RM-001", "score": 0.5361014604568481, "sibling_score": 0.5361014604568481, "answer_score": null, "sibling_qid": "KOL-2025-05-3783-Q007", "sibling_text": "function of chock", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What are chocks? Function, types, where fitted and how placed — which have the biggest area, and how does the bedplate connect to the hull?", "cross_family": true }, { "answer_id": "CHK-330-001", "score": 0.5359825491905212, "sibling_score": 0.5359825491905212, "answer_score": null, "sibling_qid": "KOC-2022-05-1785-Q007", "sibling_text": "function of chock", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What is the purpose and function of main engine chocks?", "cross_family": true } ] }, { "qid": "MUM-2025-12-0619-Q002", "text": "Status of other function", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-12-0619", "tray": "new", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.5755640864372253, "sibling_score": 0.5755640864372253, "answer_score": null, "sibling_qid": "MUM-2026-05-3187-Q001", "sibling_text": "status of other orals and written", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": false }, { "answer_id": "IMO-CODES-P03-002", "score": 0.5663527250289917, "sibling_score": 0.5663527250289917, "answer_score": null, "sibling_qid": "MUM-2026-03-0815-Q003", "sibling_text": "which function", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": false }, { "answer_id": "AVR-EXC-B-001", "score": 0.5086451768875122, "sibling_score": 0.5086451768875122, "answer_score": null, "sibling_qid": "KOC-2025-12-1676-Q004", "sibling_text": "explain status avr", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Explain the AVR working principle and control-loop operation.", "cross_family": true } ] }, { "qid": "MUM-2025-12-0619-Q003", "text": "Status of written", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-12-0619", "tray": "new", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.647678554058075, "sibling_score": 0.647678554058075, "answer_score": null, "sibling_qid": "MUM-2026-03-1294-Q001", "sibling_text": "status of writtens and orals", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.5115063190460205, "sibling_score": 0.5115063190460205, "answer_score": null, "sibling_qid": "KOC-2026-08-2106-Q001", "sibling_text": "status of written oral company type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": true }, { "answer_id": "FLAG-ST-001", "score": 0.4865539073944092, "sibling_score": 0.4865539073944092, "answer_score": null, "sibling_qid": "MUM-2025-11-0607-Q004", "sibling_text": "flag state", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Flag State — authority, role, duties and requirements", "cross_family": true } ] }, { "qid": "MUM-2025-12-0619-Q004", "text": "Which attempt is dis for fn 3", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-12-0619", "tray": "new", "candidates": [ { "answer_id": "SEEMP-123-B-001", "score": 0.4381476938724518, "sibling_score": 0.4381476938724518, "answer_score": null, "sibling_qid": "KOC-2026-03-0880-Q002", "sibling_text": "function 3 contents", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SEEMP Part III — the ship's operational carbon-intensity (CII) plan", "cross_family": true }, { "answer_id": "A6-NSEC-005", "score": 0.43781810998916626, "sibling_score": 0.43781810998916626, "answer_score": null, "sibling_qid": "MUM-2024-11-2777-Q007", "sibling_text": "seemp 3", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP — Part I, II & III", "cross_family": true }, { "answer_id": "ISMNC-001", "score": 0.431648850440979, "sibling_score": 0.431648850440979, "answer_score": null, "sibling_qid": "MUM-2022-10-0063-Q003", "sibling_text": "3 what is non confirmity", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a non-conformity under the ISM Code? Give the definition.", "cross_family": true } ] }, { "qid": "MUM-2025-12-0619-Q005", "text": "Type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-12-0619", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.837036669254303, "sibling_score": 0.837036669254303, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8018087148666382, "sibling_score": 0.8018087148666382, "answer_score": 0.5473707109689713, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8005447387695312, "sibling_score": 0.8005447387695312, "answer_score": 0.5217237085103988, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2025-12-0619-Q008", "text": "Solas chapter 13 asked elements of it", "family": "SOLAS - General (HOLD)", "subtopic": "Solas Chapters Overview", "tid": "MUM-2025-12-0619", "tray": "new", "candidates": [ { "answer_id": "SOLAS-OVW-002", "score": 0.5731231570243835, "sibling_score": 0.5731231570243835, "answer_score": null, "sibling_qid": "KOC-2021-11-0036-Q002", "sibling_text": "solas chapter 13 details", "sibling_family": "", "via": "sibling", "answer_title": "SOLAS Chapter XIII — verification of compliance (III Code / IMSAS)", "cross_family": false }, { "answer_id": "SOLAS-CH-012", "score": 0.5234705209732056, "sibling_score": 0.5234705209732056, "answer_score": 0.3073642909526825, "sibling_qid": "MUM-2020-08-0001-Q009", "sibling_text": "solas how many capters explain chapter 13 14", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS XI-1, XI-2 and XIII - safety, security and audit", "cross_family": true }, { "answer_id": "SOLAS-XII-BC-002", "score": 0.5066424608230591, "sibling_score": 0.5066424608230591, "answer_score": null, "sibling_qid": "CHE-2026-09-3920-Q002", "sibling_text": "solas chapter 12 explain key points", "sibling_family": "SOLAS - General (HOLD)", "via": "sibling", "answer_title": "Explain SOLAS Chapter XII — the additional safety measures for bulk carriers", "cross_family": false } ] }, { "qid": "MUM-2025-12-0619-Q011", "text": "Relationship between them", "family": "", "subtopic": "", "tid": "MUM-2025-12-0619", "tray": "new", "candidates": [ { "answer_id": "COC-003", "score": 0.610444962978363, "sibling_score": 0.610444962978363, "answer_score": null, "sibling_qid": "KOL-2019-06-0288-Q003", "sibling_text": "cas and cond of class relationship", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the Condition Assessment Scheme (CAS), and how does it relate to a Condition of Class?", "cross_family": false }, { "answer_id": "PWR-ARA-007", "score": 0.6038051247596741, "sibling_score": 0.6038051247596741, "answer_score": null, "sibling_qid": "KOC-2025-07-1557-Q003", "sibling_text": "kw n kj relation", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "kW, kJ, joule and BHP — power versus energy", "cross_family": false }, { "answer_id": "GM-META-006", "score": 0.5909976363182068, "sibling_score": 0.5909976363182068, "answer_score": null, "sibling_qid": "MUM-2023-07-0112-Q009", "sibling_text": "relation between gm and gz", "sibling_family": "", "via": "sibling", "answer_title": "GM and the righting lever GZ", "cross_family": false } ] }, { "qid": "MUM-2025-12-0620-Q001", "text": "Which Functions?", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-12-0620", "tray": "review", "candidates": [ { "answer_id": "IMO-CODES-P03-002", "score": 0.8119300603866577, "sibling_score": 0.8119300603866577, "answer_score": null, "sibling_qid": "MUM-2026-03-0815-Q003", "sibling_text": "which function", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": false }, { "answer_id": "IMO-CC-P01-003", "score": 0.5845922231674194, "sibling_score": 0.5845922231674194, "answer_score": null, "sibling_qid": "KOC-2026-03-0885-Q006", "sibling_text": "msc functions", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Name the IMO Committees and Sub-Committees (MSC, MEPC, FAL …) and state their functions.", "cross_family": true }, { "answer_id": "CHK-RM-001", "score": 0.5824607014656067, "sibling_score": 0.5824607014656067, "answer_score": null, "sibling_qid": "KOL-2022-04-1918-Q004", "sibling_text": "chocks function types", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What are chocks? Function, types, where fitted and how placed — which have the biggest area, and how does the bedplate connect to the hull?", "cross_family": true } ] }, { "qid": "MUM-2025-12-0620-Q002", "text": "Type of ships.?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-12-0620", "tray": "review", "candidates": [ { "answer_id": "LLST-AB-001", "score": 0.8288000226020813, "sibling_score": 0.8288000226020813, "answer_score": 0.5264953404664993, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.7944396138191223, "sibling_score": 0.7944396138191223, "answer_score": 0.5290330469608306, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.7895126938819885, "sibling_score": 0.7895126938819885, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false } ] }, { "qid": "MUM-2025-12-0620-Q004", "text": "How to fight if fire in same", "family": "", "subtopic": "", "tid": "MUM-2025-12-0620", "tray": "new", "candidates": [ { "answer_id": "UPT-FIRE-003", "score": 0.5547345876693726, "sibling_score": 0.5547345876693726, "answer_score": null, "sibling_qid": "MUM-2025-09-2402-Q001", "sibling_text": "ege fire how to fight", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Fire in the exhaust gas boiler or economiser — actions and instructions to the duty engineers", "cross_family": false }, { "answer_id": "CO2-SYS-003", "score": 0.5481823682785034, "sibling_score": 0.5481823682785034, "answer_score": null, "sibling_qid": "KOL-2021-10-0566-Q004", "sibling_text": "fire in some area u doing control in successful thn wht is process fire fighting some other questions asking i will updated", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 system — use decisions, suitability and post-release checks", "cross_family": false }, { "answer_id": "CONT-FIRE-002", "score": 0.5466734170913696, "sibling_score": 0.5466734170913696, "answer_score": 0.44485520124435424, "sibling_qid": "MUM-2026-05-3160-Q001S2", "sibling_text": "how to fight that fire", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "How do you fight a fire in containers on deck, or where the affected container is not directly accessible?", "cross_family": false } ] }, { "qid": "MUM-2025-12-0620-Q005", "text": "Solas chapter 12.", "family": "SOLAS - General (HOLD)", "subtopic": "Solas Chapters Overview", "tid": "MUM-2025-12-0620", "tray": "review", "candidates": [ { "answer_id": "SOLAS-XII-BC-002", "score": 0.6775514483451843, "sibling_score": 0.6775514483451843, "answer_score": null, "sibling_qid": "MUM-2022-10-0053-Q002", "sibling_text": "solas chapter 12 complete", "sibling_family": "SOLAS - General (HOLD)", "via": "sibling", "answer_title": "Explain SOLAS Chapter XII — the additional safety measures for bulk carriers", "cross_family": false }, { "answer_id": "ESE-P01-003", "score": 0.6579492688179016, "sibling_score": 0.6579492688179016, "answer_score": null, "sibling_qid": "MUM-2022-07-0028-Q001S3", "sibling_text": "solas chapter 12", "sibling_family": "SOLAS - General (HOLD)", "via": "sibling", "answer_title": "General enclosed-space entry procedure as second engineer", "cross_family": false }, { "answer_id": "WIDAS-SMK-005", "score": 0.3463281601667404, "sibling_score": null, "answer_score": 0.3463281601667404, "sibling_qid": "", "sibling_text": "regulation solas chapter xii references and exemptions", "sibling_family": "", "via": "answer_title", "answer_title": "Regulation, SOLAS Chapter XII references and exemptions", "cross_family": false } ] }, { "qid": "MUM-2025-12-0620-Q006", "text": "Additional safety measure for bulk carrier", "family": "Cargo Ops - Bulk Carriers", "subtopic": "IMSBC / TML", "tid": "MUM-2025-12-0620", "tray": "review", "candidates": [ { "answer_id": "SOLAS12-BC-B-001", "score": 0.8479669690132141, "sibling_score": 0.8479669690132141, "answer_score": 0.5707677781581878, "sibling_qid": "MUM-2026-06-3436-Q003", "sibling_text": "additional safety measures in bulk carrier", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Additional safety measures for bulk carriers (SOLAS Chapter XII)", "cross_family": false }, { "answer_id": "BC-IMSBC-001", "score": 0.8072379231452942, "sibling_score": 0.8072379231452942, "answer_score": null, "sibling_qid": "MUM-2026-06-3541-Q003", "sibling_text": "what additional safety of bulk carrier", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "1. Bulk carrier safety requirements — SOLAS Chapter XII and recent additions", "cross_family": false }, { "answer_id": "SOLAS12-BC-E-001", "score": 0.7652319669723511, "sibling_score": 0.7652319669723511, "answer_score": null, "sibling_qid": "KOL-2020-10-0433-Q001", "sibling_text": "bulk carrier additional safety measures bilge alarm specific location", "sibling_family": "", "via": "sibling", "answer_title": "Water ingress detection & alarm system (WIDAS) — SOLAS XII/12", "cross_family": false } ] }, { "qid": "MUM-2025-12-0620-Q007", "text": "Free surface effect.", "family": "Ship Construction & Stability", "subtopic": "Static / Dynamic Stability/damage stability", "tid": "MUM-2025-12-0620", "tray": "review", "candidates": [ { "answer_id": "FSE-P03-003", "score": 0.765960693359375, "sibling_score": 0.765960693359375, "answer_score": 0.4189040631055832, "sibling_qid": "KOC-2026-04-0900-Q004", "sibling_text": "explain free surface effect calculation", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "3. 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Tankers", "via": "sibling", "answer_title": "As Second Engineer, what actions do you take if the inert gas plant of a crude oil tanker is repeatedly tripping on IG high temperature?", "cross_family": true } ] }, { "qid": "MUM-2025-12-0623-Q007", "text": "New Amendments to ISM", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "MUM-2025-12-0623", "tray": "new", "candidates": [ { "answer_id": "BC-IMSBC-005", "score": 0.6476402878761292, "sibling_score": 0.6476402878761292, "answer_score": 0.3504732310771942, "sibling_qid": "MUM-2026-06-3603-Q001", "sibling_text": "latest amendments in ism and when", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "5. Latest IMSBC Code amendments", "cross_family": false }, { "answer_id": "COT-P02-10", "score": 0.5640000104904175, "sibling_score": 0.5640000104904175, "answer_score": null, "sibling_qid": "KOC-2023-10-0221-Q001", "sibling_text": "ig new amendments", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "State and explain the latest statutory amendments affecting tanker inert-gas systems, including applicability and practical changes on board.", "cross_family": true }, { "answer_id": "IMODCS-004", "score": 0.5147154927253723, "sibling_score": 0.5147154927253723, "answer_score": null, "sibling_qid": "KOC-2025-07-0620-Q012", "sibling_text": "new draft ammendments in imodcs", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is the latest amendment to MARPOL Annex VI affecting the IMO DCS?", "cross_family": true } ] }, { "qid": "MUM-2025-12-0626-Q001", "text": "written status", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-12-0626", "tray": "review", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.6559155583381653, "sibling_score": 0.6559155583381653, "answer_score": null, "sibling_qid": "MUM-2026-03-1294-Q001", "sibling_text": "status of writtens and orals", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.5299755334854126, "sibling_score": 0.5299755334854126, "answer_score": null, "sibling_qid": "KOC-2026-08-2106-Q001", "sibling_text": "status of written oral company type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": true }, { "answer_id": "FLAG-ST-001", "score": 0.5046485662460327, "sibling_score": 0.5046485662460327, "answer_score": null, "sibling_qid": "MUM-2025-11-0607-Q004", "sibling_text": "flag state", "sibling_family": "Surveys - 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Fuel Injection & Pumps", "via": "sibling", "answer_title": "What are cat fines — what are they made of, how do they get into the fuel, and what are the limit values?", "cross_family": true }, { "answer_id": "FHD-616-001", "score": 0.4044494032859802, "sibling_score": 0.4044494032859802, "answer_score": null, "sibling_qid": "MUM-2022-10-2706-Q010", "sibling_text": "diameter of fire hose gopi sir asked how was your oral then he asked me", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "SOLAS fire-hose requirements — diameter, length, material and quantity; deck vs engine-room length", "cross_family": true } ] }, { "qid": "MUM-2025-12-0626-Q003", "text": "Types of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-12-0626", "tray": "review", "candidates": [ { "answer_id": "LLST-AB-001", "score": 0.8169050216674805, "sibling_score": 0.8169050216674805, "answer_score": 0.5334100067615509, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.7935687899589539, "sibling_score": 0.7935687899589539, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.7859388589859009, "sibling_score": 0.7859388589859009, "answer_score": 0.5275938868522644, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2025-12-0628-Q001", "text": "1 - Type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-12-0628", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.751129150390625, "sibling_score": 0.751129150390625, "answer_score": null, "sibling_qid": "MUM-2026-03-0813-Q001", "sibling_text": "type of ship why only one function", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7492278814315796, "sibling_score": 0.7492278814315796, "answer_score": 0.4708170801401138, "sibling_qid": "CHE-2026-05-0614-Q001", "sibling_text": "start from type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.7347795963287354, "sibling_score": 0.7347795963287354, "answer_score": 0.4757106602191925, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2025-12-0628-Q004", "text": "4 - Dtanable deficiency As per MLC", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2025-12-0628", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-007", "score": 0.6084258556365967, "sibling_score": 0.6084258556365967, "answer_score": 0.28144263923168183, "sibling_qid": "MUM-2026-01-0701-Q002", "sibling_text": "detainable deficiency of mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false }, { "answer_id": "DCG-003", "score": 0.2658241346478462, "sibling_score": null, "answer_score": 0.2658241346478462, "sibling_qid": "", "sibling_text": "what is the psc deficiency code which code leads to a detainable deficiency and can you give an example of a clear ground code two systems a nature of deficiency code what the fault is vs an action taken code what the psco decided action taken codes belong to the regional mou regime paris tokyo mou thetis not to the imo procedures treat the numbers as regime dependent verify against the current re", "sibling_family": "", "via": "answer_title", "answer_title": "What is the PSC deficiency code, which code leads to a detainable deficiency, and can you give an example of a \"clear-ground code\"?", "cross_family": false }, { "answer_id": "AII-DISCH-007", "score": 0.2519057095050812, "sibling_score": null, "answer_score": 0.2519057095050812, "sibling_qid": "", "sibling_text": "what deficiency may be raised when the annex ii discharge criteria are not satisfied a non compliant discharge is an illegal nls discharge not a minor defect psc deficiency discharge outside reg 13 inadequate stripping cargo record book gaps or false entries potentially detainable", "sibling_family": "", "via": "answer_title", "answer_title": "What deficiency may be raised when the Annex II discharge criteria are not satisfied", "cross_family": false } ] }, { "qid": "MUM-2025-12-0628-Q008", "text": "( i told abou orange smoke and light ) he said one more thing which i dont know .", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Pyrotechnics / Flares", "tid": "MUM-2025-12-0628", "tray": "new", "candidates": [ { "answer_id": "MOB-MKR-004", "score": 0.5137940049171448, "sibling_score": 0.5137940049171448, "answer_score": null, "sibling_qid": "MUM-2026-04-0885-Q005", "sibling_text": "mob marker you threw what will happen not satisfied with light smoke and lanyard", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "You throw the MOB marker overboard. What happens then?", "cross_family": false }, { "answer_id": "AE-HOT-BLOW-001", "score": 0.5074676275253296, "sibling_score": 0.5074676275253296, "answer_score": null, "sibling_qid": "MUM-2022-12-1036-Q005", "sibling_text": "ae giving dark smoke reasons", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE / DG giving black or dark smoke — causes and corrective action", "cross_family": true }, { "answer_id": "IMSBC-BULK-001", "score": 0.49715760350227356, "sibling_score": 0.49715760350227356, "answer_score": null, "sibling_qid": "KOL-2021-07-0519-Q001", "sibling_text": "spontaneous combustion i said any hydrocarbon getting ignited randomly then he said any better explanation than this", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Coal: spontaneous combustion, self-heating and methane", "cross_family": true } ] }, { "qid": "MUM-2025-12-0630-Q003", "text": "Deficiency in MLC", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2025-12-0630", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-007", "score": 0.7543055415153503, "sibling_score": 0.7543055415153503, "answer_score": 0.2851377636194229, "sibling_qid": "MUM-2026-06-3511-Q003", "sibling_text": "deficiency in mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false }, { "answer_id": "MLC-WRH-B-001", "score": 0.2787415415048599, "sibling_score": null, "answer_score": 0.2787415415048599, "sibling_qid": "", "sibling_text": "the dmlc part i and part ii contents who prepares who issues mlc regulation 5 1 3 and standard a5 1 3 the dmlc is attached to the maritime labour certificate a full certificate without a dmlc attached is incomplete part i drawn up by the flag state s competent authority the national requirements for the 16 areas of appendix a5 i with legal references plus any substantial equivalence article vi par", "sibling_family": "", "via": "answer_title", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "CREQ-542-005", "score": 0.273656553030014, "sibling_score": null, "answer_score": 0.273656553030014, "sibling_qid": "", "sibling_text": "no spare available and clearances are out of limit what do you do distinguish build assembly clearance from the maker s maximum wear down condemning limit they are not the same thing past the wear limit on a critical machine with no spare is not a licence to keep running it as normal", "sibling_family": "", "via": "answer_title", "answer_title": "No spare available and clearances are out of limit — what do you do?", "cross_family": false } ] }, { "qid": "MUM-2025-12-0630-Q005", "text": "Imo structure", "family": "Other Conventions", "subtopic": "UNCLOS", "tid": "MUM-2025-12-0630", "tray": "review", "candidates": [ { "answer_id": "IMO-CC-P01-001", "score": 0.7823118567466736, "sibling_score": 0.7823118567466736, "answer_score": 0.39036779701709745, "sibling_qid": "MUM-2026-03-0830-Q006", "sibling_text": "imo structure", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Explain the structure and organs of IMO — Assembly, Council, Committees and Secretariat.", "cross_family": false }, { "answer_id": "IMO-5PIL-001", "score": 0.7316212058067322, "sibling_score": 0.7316212058067322, "answer_score": 0.38945635259151457, "sibling_qid": "MUM-2025-11-0571-Q001", "sibling_text": "imo structure", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Structure of IMO — the main organs", "cross_family": true }, { "answer_id": "IMO-CODES-P03-002", "score": 0.4298864871263504, "sibling_score": null, "answer_score": 0.4298864871263504, "sibling_qid": "", "sibling_text": "imo overview structure committees certificates imsas ui and carbon strategy", "sibling_family": "", "via": "answer_title", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": false } ] }, { "qid": "MUM-2025-12-0632-Q001", "text": "Which ship sailed on( crude oil tanker)", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-12-0632", "tray": "review", "candidates": [ { "answer_id": "COT-01", "score": 0.6909252405166626, "sibling_score": 0.6909252405166626, "answer_score": 0.44529202580451965, "sibling_qid": "KOC-2026-04-0892-Q003", "sibling_text": "type of ship sailed tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Oil-tanker types, definitions and cargo capability", "cross_family": false }, { "answer_id": "LPG-LNG-009", "score": 0.6501463651657104, "sibling_score": 0.6501463651657104, "answer_score": null, "sibling_qid": "CHE-2026-04-0164-Q001", "sibling_text": "type of ship sailed lpg carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Gas-carrier fundamentals and ship-specific traps", "cross_family": false }, { "answer_id": "IBC-BCH-B-004", "score": 0.6225927472114563, "sibling_score": 0.6225927472114563, "answer_score": null, "sibling_qid": "MUM-2026-05-3156-Q001", "sibling_text": "type of ships chemical tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Certificate of Fitness and MARPOL Annex II in practice", "cross_family": false } ] }, { "qid": "MUM-2025-12-0632-Q002", "text": "How many ships", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-12-0632", "tray": "new", "candidates": [ { "answer_id": "LLST-AB-002", "score": 0.6275335550308228, "sibling_score": 0.6275335550308228, "answer_score": null, "sibling_qid": "KOC-2021-10-1150-Q010", "sibling_text": "b 60 ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false }, { "answer_id": "EEXI-001", "score": 0.6202551126480103, "sibling_score": 0.6202551126480103, "answer_score": null, "sibling_qid": "MUM-2025-10-0509-Q004", "sibling_text": "what are existing ships 6 units of eexi", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is EEXI? Explain it in full — formula, unit, application, and what an existing ship is", "cross_family": true }, { "answer_id": "LLC-P05-001", "score": 0.590400755405426, "sibling_score": 0.590400755405426, "answer_score": null, "sibling_qid": "KOL-2018-07-0201-Q001", "sibling_text": "how many ships after class 4 grt of them deck line how is it drawn wanted to know the location and distance", "sibling_family": "", "via": "sibling", "answer_title": "Freeboard, deck line, Plimsoll mark, assignment and scantling draft", "cross_family": false } ] }, { "qid": "MUM-2025-12-0632-Q010", "text": "Financial securities as per MLC2006.", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2025-12-0632", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-006", "score": 0.4774051904678345, "sibling_score": 0.4774051904678345, "answer_score": null, "sibling_qid": "MUM-2026-06-3656-Q002", "sibling_text": "certificates under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false }, { "answer_id": "CLC-CIV-A-004", "score": 0.46927475929260254, "sibling_score": 0.46927475929260254, "answer_score": 0.2815279573202133, "sibling_qid": "MUM-2026-07-3757-Q004", "sibling_text": "certificate of financial security as per mlc", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "CLC certificate, blue card and certificate of financial security", "cross_family": true }, { "answer_id": "MLC-WRH-B-007", "score": 0.46295925974845886, "sibling_score": 0.46295925974845886, "answer_score": null, "sibling_qid": "MUM-2026-02-0734-Q007", "sibling_text": "mlc 2006 detainable deficiency", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false } ] }, { "qid": "MUM-2025-12-0633-Q001", "text": "Types of ship sailed ...I said container only .. he started asking about lng.", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-12-0633", "tray": "review", "candidates": [ { "answer_id": "LPG-LNG-009", "score": 0.7914275527000427, "sibling_score": 0.7914275527000427, "answer_score": 0.5416500926017761, "sibling_qid": "MUM-2026-01-0682-Q001", "sibling_text": "type of ship lng tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Gas-carrier fundamentals and ship-specific traps", "cross_family": false }, { "answer_id": "DB-TORBOX-B-003", "score": 0.7280119061470032, "sibling_score": 0.7280119061470032, "answer_score": null, "sibling_qid": "CHE-2026-04-0150-Q001", "sibling_text": "type of ship sailed container", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "What is a torsion box — definition and construction", "cross_family": false }, { "answer_id": "COT-01", "score": 0.7059394121170044, "sibling_score": 0.7059394121170044, "answer_score": null, "sibling_qid": "KOC-2026-04-0892-Q003", "sibling_text": "type of ship sailed tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Oil-tanker types, definitions and cargo capability", "cross_family": false } ] }, { "qid": "MUM-2025-12-0647-Q001", "text": "Loadicator requirements and regulations", "family": "Cargo Ops - Bulk Carriers", "subtopic": "IMSBC / Grain / BLU Code", "tid": "MUM-2025-12-0647", "tray": "new", "candidates": [ { "answer_id": "LL-CONV-P06-004", "score": 0.5840202569961548, "sibling_score": 0.5840202569961548, "answer_score": 0.4132739558815956, "sibling_qid": "KOL-2021-08-0548-Q002", "sibling_text": "loadline requirements", "sibling_family": "", "via": "sibling", "answer_title": "LLC-P06-04 - General load-line requirement, marks, stability link and overloading consequences", "cross_family": false }, { "answer_id": "SOLAS12-BC-E-001", "score": 0.5335016250610352, "sibling_score": 0.5335016250610352, "answer_score": null, "sibling_qid": "KOC-2024-07-0357-Q005", "sibling_text": "solas ch 12 explain how many regulations name them explain reg 4 criteria widas loadicator", "sibling_family": "", "via": "sibling", "answer_title": "Water ingress detection & alarm system (WIDAS) — SOLAS XII/12", "cross_family": false }, { "answer_id": "LL-CONV-P04-002", "score": 0.5260909795761108, "sibling_score": 0.5260909795761108, "answer_score": 0.3805420815944672, "sibling_qid": "KOL-2021-08-0534-Q004", "sibling_text": "requirements for loadline certificate issuance", "sibling_family": "", "via": "sibling", "answer_title": "Load Line Convention, certificates, assigning authority and detention risk", "cross_family": false } ] }, { "qid": "MUM-2025-12-0647-Q004", "text": "■something about Ship construction plan and components", "family": "Ship Construction & Stability", "subtopic": "", "tid": "MUM-2025-12-0647", "tray": "review", "candidates": [ { "answer_id": "PPS-230-006", "score": 0.7065408825874329, "sibling_score": 0.7065408825874329, "answer_score": null, "sibling_qid": "CHE-2026-09-3914-Q002", "sibling_text": "forward ship constructional arrangements", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Fore-end / fore-peak structure: draw and describe", "cross_family": false }, { "answer_id": "GA-GI-DWG-004", "score": 0.6741175055503845, "sibling_score": 0.6741175055503845, "answer_score": 0.5360104352235794, "sibling_qid": "KOC-2022-04-0070-Q016", "sibling_text": "structural related plans for ship", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "4. Which structural drawings or plans are referred to for a ship?", "cross_family": true }, { "answer_id": "GA-GI-DWG-003", "score": 0.6610181331634521, "sibling_score": 0.6610181331634521, "answer_score": 0.478366819024086, "sibling_qid": "KOL-2025-07-1000-Q002", "sibling_text": "sheer plan for naval structure", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "3. What is a sheer plan and why is it needed in drydock?", "cross_family": true } ] }, { "qid": "MUM-2025-12-0648-Q001", "text": "Which company Which rank", "family": "Status & Introduction", "subtopic": "Company Introduction", "tid": "MUM-2025-12-0648", "tray": "new", "candidates": [ { "answer_id": "AV6-P04-04", "score": 0.4829135537147522, "sibling_score": 0.4829135537147522, "answer_score": null, "sibling_qid": "MUM-2026-04-3029-Q003", "sibling_text": "s p global", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Explain the “S&P Global” reference only to the extent it relates to the recorded GHG oral; declare the reading, since the source thread does not resolve the examiner’s intended angle.", "cross_family": true }, { "answer_id": "LLST-AB-002", "score": 0.47270888090133667, "sibling_score": 0.47270888090133667, "answer_score": null, "sibling_qid": "MUM-2026-09-3912-Q001", "sibling_text": "company name type of ships native place", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false }, { "answer_id": "CII-RATE-P02-001", "score": 0.45845651626586914, "sibling_score": 0.45845651626586914, "answer_score": null, "sibling_qid": "MUM-2026-06-3360-Q002", "sibling_text": "cii and its ratings", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "1. The CII rating scale A to E — what each rating means", "cross_family": true } ] }, { "qid": "MUM-2025-12-0648-Q002", "text": "Wat type of vessel", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-12-0648", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8063923716545105, "sibling_score": 0.8063923716545105, "answer_score": null, "sibling_qid": "MUM-2026-06-3384-Q001", "sibling_text": "type of vessel", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "COT-01", "score": 0.7426349520683289, "sibling_score": 0.7426349520683289, "answer_score": null, "sibling_qid": "KOC-2026-04-0892-Q003", "sibling_text": "type of ship sailed tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Oil-tanker types, definitions and cargo capability", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.7334811091423035, "sibling_score": 0.7334811091423035, "answer_score": null, "sibling_qid": "CHE-2026-02-0481-Q001", "sibling_text": "type of vessels sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false } ] }, { "qid": "MUM-2025-12-0649-Q001", "text": "Type of vessel (LPG)", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-12-0649", "tray": "review", "candidates": [ { "answer_id": "LPG-LNG-009", "score": 0.8031816482543945, "sibling_score": 0.8031816482543945, "answer_score": 0.5377696394920349, "sibling_qid": "CHE-2026-04-0164-Q001", "sibling_text": "type of ship sailed lpg carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Gas-carrier fundamentals and ship-specific traps", "cross_family": false }, { "answer_id": "IGC-GAS-004", "score": 0.7275776267051697, "sibling_score": 0.7275776267051697, "answer_score": null, "sibling_qid": "KOL-2025-08-1014-Q002", "sibling_text": "type of ship sailed lpg classification of gas carriers of as per igc code", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Ship-type classification under the IGC Code — 1G / 2G / 2PG / 3G", "cross_family": true }, { "answer_id": "LPG-LNG-001", "score": 0.6886253952980042, "sibling_score": 0.6886253952980042, "answer_score": null, "sibling_qid": "MUM-2026-09-3961-Q001", "sibling_text": "how lpg ship differ from other ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "LPG vs LNG – properties, carriage and comparison", "cross_family": false } ] }, { "qid": "MUM-2025-12-0649-Q006", "text": "Independent tank construction", "family": "Cargo Ops - Gas Carriers", "subtopic": "Independent Tank Type", "tid": "MUM-2025-12-0649", "tray": "new", "candidates": [ { "answer_id": "GC-TANK-006", "score": 0.5967945456504822, "sibling_score": 0.5967945456504822, "answer_score": null, "sibling_qid": "CHE-2025-11-0309-Q010", "sibling_text": "cross what is self supporting tank and draw", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Prismatic / self-supporting gas-carrier cargo tank", "cross_family": false }, { "answer_id": "GC-TANK-001", "score": 0.5836609601974487, "sibling_score": 0.5836609601974487, "answer_score": null, "sibling_qid": "MUM-2026-02-0742-Q003", "sibling_text": "type of independant tanks", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Main cargo containment and independent tank types on LPG and LNG carriers", "cross_family": false }, { "answer_id": "DBTB-A-002", "score": 0.5728050470352173, "sibling_score": 0.5728050470352173, "answer_score": null, "sibling_qid": "MUM-2025-11-0573-Q002", "sibling_text": "construction of db tank", "sibling_family": "", "via": "sibling", "answer_title": "Double-bottom tanks: purpose, advantages, disadvantages and stability effect", "cross_family": false } ] }, { "qid": "MUM-2025-12-0649-Q008", "text": "MLC Minimum age limit for young seafarer", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2025-12-0649", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-004", "score": 0.6675779223442078, "sibling_score": 0.6675779223442078, "answer_score": 0.5243604123592377, "sibling_qid": "KOL-2021-07-0526-Q006", "sibling_text": "4 mlc 2006 rest hours minimum age required to workonboard minimum age for night watch", "sibling_family": "MLC", "via": "sibling", "answer_title": "Young seafarers — minimum age, night work, and what the 2/E must ensure", "cross_family": false }, { "answer_id": "MLC-WRH-B-007", "score": 0.4860633313655853, "sibling_score": null, "answer_score": 0.4860633313655853, "sibling_qid": "", "sibling_text": "mlc detainable deficiencies there is no convention list of detainable deficiencies appendix a5 iii lists the 16 areas open to a more detailed inspection in a port state appendix a5 i is the same 16 for flag certification the 16 areas minimum age medical certification qualifications of seafarers seafarers employment agreements use of any licensed or certified or regulated private recruitment and pl", "sibling_family": "", "via": "answer_title", "answer_title": "MLC detainable deficiencies", "cross_family": false }, { "answer_id": "MLC-WRH-B-008", "score": 0.4666104316711426, "sibling_score": 0.4666104316711426, "answer_score": 0.3854345470666885, "sibling_qid": "KOC-2023-12-0264-Q002", "sibling_text": "mlc medical certificate requirement can u join ship with expired medical certificate how long is validity of such certificate", "sibling_family": "MLC", "via": "sibling", "answer_title": "Medical certificate — requirements, validity, and joining on an expired one", "cross_family": false } ] }, { "qid": "MUM-2025-12-0649-Q009", "text": "ISM Function requirement", "family": "ISM Code", "subtopic": "SMS / Functional Requirements", "tid": "MUM-2025-12-0649", "tray": "review", "candidates": [ { "answer_id": "ISM-AUD-P02-003", "score": 0.7165107131004333, "sibling_score": 0.7165107131004333, "answer_score": 0.4208456575870514, "sibling_qid": "MUM-2026-09-3989-Q003", "sibling_text": "ism functional requirement", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "The six functional requirements of the ISM Code (clause 1.4)", "cross_family": false }, { "answer_id": "SMSFR-001", "score": 0.6771083474159241, "sibling_score": 0.6771083474159241, "answer_score": 0.4525974631309509, "sibling_qid": "MUM-2026-06-3581-Q001", "sibling_text": "what are the functional requirements of the ism code", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What are the functional requirements of the ISM Code and the SMS — and the requirement for internal audit?", "cross_family": false }, { "answer_id": "ISM-ELEM-003", "score": 0.4305148720741272, "sibling_score": null, "answer_score": 0.4305148720741272, "sibling_qid": "", "sibling_text": "elements chapters structure of the ism code part a implementation the 12 elements 1 general 1 1 definitions 1 2 objectives 1 3 application 1 4 functional requirements for an sms", "sibling_family": "", "via": "answer_title", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": false } ] }, { "qid": "MUM-2025-12-0649-Q012", "text": "What is identification number who will issue.", "family": "", "subtopic": "", "tid": "MUM-2025-12-0649", "tray": "new", "candidates": [ { "answer_id": "KGF-A-002", "score": 0.5175701379776001, "sibling_score": 0.5175701379776001, "answer_score": 0.31134906113147737, "sibling_qid": "KOC-2025-10-0673-Q002", "sibling_text": "how it is identified how to number", "sibling_family": "", "via": "sibling", "answer_title": "Frame numbering, spacing & identification", "cross_family": false }, { "answer_id": "FQCC-583-B-017", "score": 0.4787169098854065, "sibling_score": 0.4787169098854065, "answer_score": null, "sibling_qid": "KOL-2026-05-4093-Q010", "sibling_text": "what is tbn number who decides this number", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "What is TBN, and who decides the number?", "cross_family": false }, { "answer_id": "IMDG-003", "score": 0.46144336462020874, "sibling_score": 0.46144336462020874, "answer_score": 0.311762934923172, "sibling_qid": "CHE-2025-10-0070-Q019", "sibling_text": "what is un number", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is a UN number and a Proper Shipping Name? Give an example", "cross_family": false } ] }, { "qid": "MUM-2025-12-0649-Q014", "text": "intact stability criteria.", "family": "Ship Construction & Stability", "subtopic": "Static / Dynamic Stability/damage stability", "tid": "MUM-2025-12-0649", "tray": "review", "candidates": [ { "answer_id": "STAB-SD-A-001", "score": 0.834304690361023, "sibling_score": 0.834304690361023, "answer_score": 0.44380225241184235, "sibling_qid": "KOL-2026-07-4264-Q004", "sibling_text": "intact stability criteria", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Intact stability and the 2008 IS Code criteria", "cross_family": false }, { "answer_id": "SCS-DEF-001", "score": 0.4616542518138885, "sibling_score": null, "answer_score": 0.4616542518138885, "sibling_qid": "", "sibling_text": "1 what is intact stability stability of theundamaged watertightship the opposite case to damage stability which assumes flooding ability to return to the initial equilibrium upright after a heeling force is removed", "sibling_family": "", "via": "answer_title", "answer_title": "1. What is intact stability?", "cross_family": false }, { "answer_id": "DAM-STAB-P03-001", "score": 0.4410395473241806, "sibling_score": null, "answer_score": 0.4410395473241806, "sibling_qid": "", "sibling_text": "intact static dynamic and damage stability difference and criteria intact stability means the ship is undamaged damage stability means one or more spaces are assumed flooded and the residual condition is assessed static stability is the righting lever gz at a stated heel angle dynamic stability is the area under the gz curve it represents work or energy to heel the ship through an angle", "sibling_family": "", "via": "answer_title", "answer_title": "Intact, static, dynamic and damage stability: difference and criteria", "cross_family": false } ] }, { "qid": "MUM-2025-12-0650-Q001", "text": "how many attempt", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-12-0650", "tray": "new", "candidates": [ { "answer_id": "CHAIN-TENS-A-003", "score": 0.5285442471504211, "sibling_score": 0.5285442471504211, "answer_score": null, "sibling_qid": "MUM-2026-02-2546-Q006", "sibling_text": "6 repeat", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "Chain Tightening Procedure — MC / MC-C / ME", "cross_family": false }, { "answer_id": "CTRL-TL-010", "score": 0.44046205282211304, "sibling_score": 0.44046205282211304, "answer_score": null, "sibling_qid": "KOL-2018-12-2250-Q004", "sibling_text": "4 failsafematic", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Pneumatic control: nozzle-flapper, DP, actuators and fail-safe", "cross_family": true }, { "answer_id": "SG-055-B-003", "score": 0.41090038418769836, "sibling_score": 0.41090038418769836, "answer_score": null, "sibling_qid": "KOL-2021-08-1619-Q004", "sibling_text": "50 redundancy", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Redundancy and the single-failure requirement (50% / 100%)", "cross_family": true } ] }, { "qid": "MUM-2025-12-0652-Q004", "text": "SOLAS regulation for tankers and product tankers ?", "family": "SOLAS - General (HOLD)", "subtopic": "Oil / Chemical Tanker Operations", "tid": "MUM-2025-12-0652", "tray": "new", "candidates": [ { "answer_id": "FO-SVCSET-002", "score": 0.6404660940170288, "sibling_score": 0.6404660940170288, "answer_score": null, "sibling_qid": "KOC-2024-07-0371-Q008", "sibling_text": "solas requirements of fuel oil service tank paul sir what is the difference between product tanker and chemical tanker", "sibling_family": "Fuel Oil System", "via": "sibling", "answer_title": "What are the SOLAS requirements for fuel oil service tank capacity?", "cross_family": true }, { "answer_id": "TKR-TYPE-001", "score": 0.6072951555252075, "sibling_score": 0.6072951555252075, "answer_score": null, "sibling_qid": "KOL-2025-07-0980-Q006", "sibling_text": "difference between product tanker and oil tanker according to solas", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "1. Crude oil tanker vs product tanker / carrier — construction and cargo-area differences", "cross_family": true }, { "answer_id": "TKR-TYPE-002", "score": 0.5972843170166016, "sibling_score": 0.5972843170166016, "answer_score": null, "sibling_qid": "MUM-2026-06-3576-Q004", "sibling_text": "chemical tanker solas regulations other than construction", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "2. Chemical tanker IMO Types 1 / 2 / 3, cargo categories and the IBC Code", "cross_family": true } ] }, { "qid": "MUM-2025-12-0652-Q008", "text": "Information on ais and lrit", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "MUM-2025-12-0652", "tray": "new", "candidates": [ { "answer_id": "EPIRB-SART-002", "score": 0.38419097661972046, "sibling_score": 0.38419097661972046, "answer_score": 0.3456107586622238, "sibling_qid": "CHE-2026-05-0535-Q007", "sibling_text": "sart and ais sart", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What is an AIS-SART and how does it differ from a radar SART?", "cross_family": true }, { "answer_id": "IACS-324-001", "score": 0.33419543504714966, "sibling_score": 0.33419543504714966, "answer_score": 0.24951923489570618, "sibling_qid": "KOC-2025-02-0543-Q001", "sibling_text": "iacs", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "1. What is IACS and what are its functions?", "cross_family": true }, { "answer_id": "CO2-SYS-004", "score": 0.303535133600235, "sibling_score": 0.303535133600235, "answer_score": null, "sibling_qid": "KOL-2024-02-0815-Q006", "sibling_text": "co2 system flexible hose requirement standard internal decider lrit and ais", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fixed CO2 total-flooding system — overview, working and arrangements", "cross_family": true } ] }, { "qid": "MUM-2025-12-0652-Q009", "text": "Essential machineries and SOLAS regulation ?", "family": "SOLAS - General (HOLD)", "subtopic": "General Auxiliary Machinery", "tid": "MUM-2025-12-0652", "tray": "new", "candidates": [ { "answer_id": "CREQ-542-002", "score": 0.48311614990234375, "sibling_score": 0.48311614990234375, "answer_score": 0.40971187502145767, "sibling_qid": "KOC-2026-03-1732-Q005", "sibling_text": "critical machineries", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "Name examples of critical equipment or critical machinery onboard.", "cross_family": true }, { "answer_id": "ISM-2E-A-003", "score": 0.4756580591201782, "sibling_score": 0.4756580591201782, "answer_score": null, "sibling_qid": "KOC-2025-04-1909-Q006", "sibling_text": "machineries under3 e", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Machinery, equipment, alarm and engine-room readiness checks for ISM", "cross_family": true }, { "answer_id": "AUC-ALM-06", "score": 0.46399223804473877, "sibling_score": 0.46399223804473877, "answer_score": 0.41125892400741576, "sibling_qid": "KOL-2025-06-0953-Q005", "sibling_text": "class a machineries requirement", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "What monitoring or automation requirements apply to machinery described as ‘Class A’ in the examiner’s terminology?", "cross_family": true } ] }, { "qid": "MUM-2025-12-0653-Q001", "text": "Product tanker strengthening arrangements ( told me to draw everything)", "family": "", "subtopic": "Scantlings", "tid": "MUM-2025-12-0653", "tray": "review", "candidates": [ { "answer_id": "COT-07", "score": 0.6759026050567627, "sibling_score": 0.6759026050567627, "answer_score": 0.49111295640468594, "sibling_qid": "MUM-2024-07-0181-Q003", "sibling_text": "strengthening arrangement for product tanker tanks type of frames spacing between frames", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Oil-tanker cargo-tank construction and strengthening", "cross_family": false }, { "answer_id": "COT-04", "score": 0.6634577512741089, "sibling_score": 0.6634577512741089, "answer_score": 0.4879108935594559, "sibling_qid": "MUM-2026-09-3974-Q003", "sibling_text": "strengthening members of a chemical tanker", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Chemical-tanker midship section and cargo-tank construction", "cross_family": false }, { "answer_id": "SHELL-PLT-A-003", "score": 0.6487025022506714, "sibling_score": 0.6487025022506714, "answer_score": null, "sibling_qid": "KOC-2026-02-2091-Q005", "sibling_text": "draw c s of the midship section of the tanker mark all the important members", "sibling_family": "", "via": "sibling", "answer_title": "The midship section — shell members you must mark", "cross_family": false } ] }, { "qid": "MUM-2025-12-0653-Q003", "text": "DMLC 1 & 2", "family": "MLC", "subtopic": "MLC / DMLC / Work-Rest", "tid": "MUM-2025-12-0653", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.8168968558311462, "sibling_score": 0.8168968558311462, "answer_score": 0.29326856732368467, "sibling_qid": "KOC-2025-06-0615-Q006", "sibling_text": "dmlc 1 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "XFMR-THY-G-002", "score": 0.2670988142490387, "sibling_score": null, "answer_score": 0.2670988142490387, "sibling_qid": "", "sibling_text": "2 transformer parallel operation", "sibling_family": "", "via": "answer_title", "answer_title": "2. Transformer parallel operation", "cross_family": false }, { "answer_id": "SHAFT-CPP-002", "score": 0.2609079837799072, "sibling_score": null, "answer_score": 0.2609079837799072, "sibling_qid": "", "sibling_text": "2 propeller slip pitch pitch measurement", "sibling_family": "", "via": "answer_title", "answer_title": "2. Propeller slip, pitch & pitch measurement", "cross_family": false } ] }, { "qid": "MUM-2025-12-0659-Q001S2", "text": "What is MNC example of mnc What are deficiency related to MLC", "family": "", "subtopic": "", "tid": "MUM-2025-12-0659", "tray": "new", "candidates": [ { "answer_id": "ISMNC-010", "score": 0.6122992634773254, "sibling_score": 0.6122992634773254, "answer_score": null, "sibling_qid": "MUM-2026-03-0813-Q008", "sibling_text": "deficiency mnc nc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Differentiate between a deficiency, an observation, a non-conformity and a major non-conformity, including the deficiency codes used at inspection.", "cross_family": false }, { "answer_id": "MLC-WRH-B-007", "score": 0.5715795755386353, "sibling_score": 0.5715795755386353, "answer_score": 0.270849871635437, "sibling_qid": "MUM-2026-06-3511-Q003", "sibling_text": "deficiency in mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false }, { "answer_id": "ISMNC-002", "score": 0.5269398093223572, "sibling_score": 0.5269398093223572, "answer_score": null, "sibling_qid": "MUM-2026-01-0685-Q005", "sibling_text": "mlc mnc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a major non-conformity under the ISM Code? Give the definition and name some.", "cross_family": false } ] }, { "qid": "MUM-2025-12-0659-Q001S3", "text": "What is financial security Why? Certificate in afs conventionValidity?", "family": "", "subtopic": "", "tid": "MUM-2025-12-0659", "tray": "new", "candidates": [ { "answer_id": "AFS-309-003", "score": 0.6230623722076416, "sibling_score": 0.6230623722076416, "answer_score": null, "sibling_qid": "KOC-2025-03-0556-Q002", "sibling_text": "afs convention and its certificate validity", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "IAFS Certificate, survey, validity and drydock compliance", "cross_family": false }, { "answer_id": "CLC-CIV-A-004", "score": 0.5687460899353027, "sibling_score": 0.5687460899353027, "answer_score": 0.36073921620845795, "sibling_qid": "MUM-2026-03-0826-Q003", "sibling_text": "financial security certification", "sibling_family": "MLC", "via": "sibling", "answer_title": "CLC certificate, blue card and certificate of financial security", "cross_family": false }, { "answer_id": "CERT-LIST-P02-004", "score": 0.5686184167861938, "sibling_score": 0.5686184167861938, "answer_score": null, "sibling_qid": "MUM-2025-09-0432-Q007", "sibling_text": "list of statutory certificates afs certificate validity", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Validity, renewal, interim certificates and e-certificate verification", "cross_family": false } ] }, { "qid": "MUM-2025-12-0659-Q001S4", "text": "Static and dynamic load test EDD scheme D2 standard", "family": "", "subtopic": "", "tid": "MUM-2025-12-0659", "tray": "new", "candidates": [ { "answer_id": "LB-SDT-A-001", "score": 0.6121586561203003, "sibling_score": 0.6121586561203003, "answer_score": 0.39958275854587555, "sibling_qid": "CHE-2026-08-0672-Q004", "sibling_text": "dynamic and static load test", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat static and dynamic test — purpose and procedure", "cross_family": false }, { "answer_id": "LBT-TEST-B-001", "score": 0.6009654998779297, "sibling_score": 0.6009654998779297, "answer_score": null, "sibling_qid": "KOL-2024-12-0896-Q005", "sibling_text": "dynamic and static load testing and xx met", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat/davit load-test proof loads and test conditions", "cross_family": false }, { "answer_id": "CPP-GRM-05", "score": 0.5778661966323853, "sibling_score": 0.5778661966323853, "answer_score": 0.4307531952857971, "sibling_qid": "KOC-2025-02-1030-Q007", "sibling_text": "define static and dynamic load in engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Static and dynamic engine loads", "cross_family": false } ] }, { "qid": "MUM-2025-12-0661-Q001", "text": "(2nd attempt) (Shouting from very first sentence bcz of cdc did not showed properly) Status of other fuction. No of attempts for fn3. Pre sea training. Types of ships sailed.", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-12-0661", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.6647463440895081, "sibling_score": 0.6647463440895081, "answer_score": null, "sibling_qid": "MUM-2026-03-0866-Q001", "sibling_text": "coc attempt internal sirish sir external vishwanathan iyer sir started with what function you are applying how many ships type of ships you did after class 4 pre sea from where how many written cleared what about other functions", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.5765224099159241, "sibling_score": 0.5765224099159241, "answer_score": null, "sibling_qid": "MUM-2026-06-3459-Q001", "sibling_text": "type of ship sail and status of other function", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "STCW-MAN-006", "score": 0.5605661273002625, "sibling_score": 0.5605661273002625, "answer_score": null, "sibling_qid": "NOI-2026-09-0008-Q001", "sibling_text": "training institue sea time after class 4 coc", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "What are the levels and categories of seafarer under STCW, and what are the duties of the Second Engineer at management level?", "cross_family": false } ] }, { "qid": "MUM-2025-12-0662-Q001", "text": "Types of ship No of attempt-1", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-12-0662", "tray": "new", "candidates": [ { "answer_id": "LLST-AB-001", "score": 0.6427616477012634, "sibling_score": 0.6427616477012634, "answer_score": 0.4082007214426994, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.6220918297767639, "sibling_score": 0.6220918297767639, "answer_score": null, "sibling_qid": "MUM-2026-02-1280-Q001", "sibling_text": "type of ship done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.598737359046936, "sibling_score": 0.598737359046936, "answer_score": null, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2025-12-0662-Q002", "text": "Bulk carrier cross section diagram.", "family": "SOLAS - General (HOLD)", "subtopic": "Solas Chapter 12 - Bulk", "tid": "MUM-2025-12-0662", "tray": "review", "candidates": [ { "answer_id": "SOLAS12-BC-F-003", "score": 0.8348121047019958, "sibling_score": 0.8348121047019958, "answer_score": 0.6062342643737793, "sibling_qid": "KOC-2024-10-0435-Q002", "sibling_text": "bulk carrier cross section diagram", "sibling_family": "", "via": "sibling", "answer_title": "Bulk-carrier midship cross-section — draw & explain", "cross_family": false }, { "answer_id": "SOLAS12-BC-F-002", "score": 0.7942671775817871, "sibling_score": 0.7942671775817871, "answer_score": null, "sibling_qid": "KOC-2025-09-0665-Q002", "sibling_text": "cross section of bulk carrier", "sibling_family": "", "via": "sibling", "answer_title": "Constructional features & structural peculiarity (incl. vs tanker holds)", "cross_family": false }, { "answer_id": "HATCH-COAM-003", "score": 0.7511115074157715, "sibling_score": 0.7511115074157715, "answer_score": 0.5760393619537353, "sibling_qid": "KOL-2019-12-0370-Q001", "sibling_text": "bulk carrier hatch p s cross section draw", "sibling_family": "", "via": "sibling", "answer_title": "Draw or explain the bulk-carrier hatch/coaming arrangement in midship or transverse section.", "cross_family": false } ] }, { "qid": "MUM-2025-12-0662-Q004", "text": "Condition of class.", "family": "Surveys - Statutory", "subtopic": "Condition of Class", "tid": "MUM-2025-12-0662", "tray": "review", "candidates": [ { "answer_id": "COC-001", "score": 0.8524377942085266, "sibling_score": 0.8524377942085266, "answer_score": 0.38445554226636885, "sibling_qid": "KOC-2026-04-0899-Q005", "sibling_text": "condition of class", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is a Condition of Class? Give examples, say where it is found, how much time is given to rectify it, and what happens if it is not met in time.", "cross_family": false }, { "answer_id": "COC-002", "score": 0.8073155283927917, "sibling_score": 0.8073155283927917, "answer_score": 0.40617976188659666, "sibling_qid": "KOL-2016-12-0036-Q002", "sibling_text": "condition of class condition assessignment", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the difference between a Condition of Class and a Condition of Assignment?", "cross_family": false }, { "answer_id": "IACS-324-003", "score": 0.7038766741752625, "sibling_score": 0.7038766741752625, "answer_score": null, "sibling_qid": "KOC-2024-03-0321-Q011", "sibling_text": "how class can become ro explain conditions", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "3. What is a Recognized Organization, how is it recognized by a flag State, and how can a classification society become one?", "cross_family": false } ] }, { "qid": "MUM-2025-12-0662-Q007", "text": "Mob marker regulation.", "family": "SOLAS - LSA & Lifeboats", "subtopic": "MOB Marker", "tid": "MUM-2025-12-0662", "tray": "review", "candidates": [ { "answer_id": "MOB-MKR-005", "score": 0.7447224855422974, "sibling_score": 0.7447224855422974, "answer_score": 0.3955174073576927, "sibling_qid": "KOC-2025-11-0724-Q002", "sibling_text": "mob marker solas regulation", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What is the SOLAS requirement and regulation for the MOB marker?", "cross_family": false }, { "answer_id": "MOB-MKR-001", "score": 0.6998153924942017, "sibling_score": 0.6998153924942017, "answer_score": 0.3472437083721161, "sibling_qid": "MUM-2026-06-3530-Q005", "sibling_text": "mob marker", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What is the MOB marker, what is it for, and what does it consist of? Give the full details.", "cross_family": false }, { "answer_id": "MOB-MKR-002", "score": 0.3803468734025955, "sibling_score": null, "answer_score": 0.3803468734025955, "sibling_qid": "", "sibling_text": "where is the mob marker stowed what is its exact location and what is the plate it rests on both bridge wings one each side equal distribution both sides is solas iii 7 1 3 quick release from the navigation bridge is the statutory requirement not the wing as such", "sibling_family": "", "via": "answer_title", "answer_title": "Where is the MOB marker stowed, what is its exact location, and what is the plate it rests on?", "cross_family": false } ] }, { "qid": "MUM-2025-12-0662-Q008", "text": "Orb missed entry", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "MUM-2025-12-0662", "tray": "review", "candidates": [ { "answer_id": "OWS-ORB-006", "score": 0.6859409809112549, "sibling_score": 0.6859409809112549, "answer_score": null, "sibling_qid": "MUM-2025-09-0447-Q007", "sibling_text": "orb entries", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "6. Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-005", "score": 0.6340214610099792, "sibling_score": 0.6340214610099792, "answer_score": 0.3065926283597946, "sibling_qid": "KOC-2026-05-0044-Q003", "sibling_text": "bunker miss entry procedure for orb", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "A missed bunker entry — how to add it, and how that differs from correcting a wrong entry", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-002", "score": 0.62785804271698, "sibling_score": 0.62785804271698, "answer_score": null, "sibling_qid": "CHE-2024-10-0509-Q002", "sibling_text": "orb entries all in detail", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "The Oil Record Book Part I — purpose, the letter codes, and how entries are made", "cross_family": false } ] }, { "qid": "MUM-2025-12-0989-Q001", "text": "Type of ship , boiler specs, turbine specs , main condenser specs", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-12-0989", "tray": "review", "candidates": [ { "answer_id": "BLR-CAP-BOILER-CAPACITY-RATING-006", "score": 0.6997677087783813, "sibling_score": 0.6997677087783813, "answer_score": 0.5194069981575012, "sibling_qid": "MUM-2022-08-0942-Q002", "sibling_text": "boiler specs complete turbine specs", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "State the boiler specifications relevant to rating/capacity.", "cross_family": true }, { "answer_id": "AE-CRP-005", "score": 0.6918940544128418, "sibling_score": 0.6918940544128418, "answer_score": null, "sibling_qid": "CHE-2026-04-0373-Q001S6", "sibling_text": "type of ship specification of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-001", "score": 0.6891204118728638, "sibling_score": 0.6891204118728638, "answer_score": null, "sibling_qid": "MUM-2026-02-1280-Q002", "sibling_text": "type of boiler compressor and generator on ship", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "1. Turbocharger type — main engine vs generator engine", "cross_family": true } ] }, { "qid": "MUM-2025-12-0989-Q002", "text": "What is package boiler", "family": "Boilers - Construction & Components", "subtopic": "Boiler Components / Circulation", "tid": "MUM-2025-12-0989", "tray": "new", "candidates": [ { "answer_id": "BLR-TUBE-P01-003", "score": 0.5545341372489929, "sibling_score": 0.5545341372489929, "answer_score": null, "sibling_qid": "CHE-2026-05-0613-Q004", "sibling_text": "expansion arrangement boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "02. Thermal expansion arrangements for boiler tubes", "cross_family": false }, { "answer_id": "OGEE-RING-001", "score": 0.5529754161834717, "sibling_score": 0.5529754161834717, "answer_score": null, "sibling_qid": "KOL-2017-05-1293-Q003", "sibling_text": "og ring in boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "The ogee ring: what it is, where it sits, its purpose, and how it's formed and connected", "cross_family": false }, { "answer_id": "BLR-CAP-BOILER-CAPACITY-RATING-006", "score": 0.5507202744483948, "sibling_score": 0.5507202744483948, "answer_score": null, "sibling_qid": "KOC-2026-05-0034-Q009", "sibling_text": "boiler specifications", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "State the boiler specifications relevant to rating/capacity.", "cross_family": false } ] }, { "qid": "MUM-2025-12-0989-Q003", "text": "Boiler dosing chemicals, how much to dose.", "family": "Boilers - Water Treatment & Chemistry", "subtopic": "Boiler Water Treatment / Chemical Dosing", "tid": "MUM-2025-12-0989", "tray": "review", "candidates": [ { "answer_id": "BLR-CHEM-003", "score": 0.716900110244751, "sibling_score": 0.716900110244751, "answer_score": 0.5609526515007018, "sibling_qid": "KOL-2018-03-1356-Q006", "sibling_text": "boiler dosing all chemical name ratio of phosphet reserve to alkinity", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "3. Boiler chemical dosing programme", "cross_family": true }, { "answer_id": "BWT-B-001", "score": 0.634271502494812, "sibling_score": 0.634271502494812, "answer_score": 0.4741166204214096, "sibling_qid": "KOL-2016-07-2991-Q002", "sibling_text": "what chemical to add to maintain alkalinity of boiler where it is added", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Why are P, T and M alkalinity tests done in boiler water, and how are the results read?", "cross_family": true }, { "answer_id": "BWTEST-A-001", "score": 0.6311756372451782, "sibling_score": 0.6311756372451782, "answer_score": 0.48767282366752623, "sibling_qid": "KOL-2019-05-3240-Q001", "sibling_text": "enlist all boiler water test chemicals incorporated and purpose of that chemical phospate reserve purpose value in ppm and its end product precipated or dissolved", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": true } ] }, { "qid": "MUM-2025-12-0989-Q004", "text": "turbine reduction gearing, why helical gears?", "family": "General Marine Engineering", "subtopic": "Reduction Gear / Gearbox", "tid": "MUM-2025-12-0989", "tray": "new", "candidates": [ { "answer_id": "SHAFT-CPP-005", "score": 0.4988081455230713, "sibling_score": 0.4988081455230713, "answer_score": null, "sibling_qid": "KOC-2024-09-1868-Q007", "sibling_text": "contra rotating propeller", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "5. Propeller types, design criteria & latest developments", "cross_family": false }, { "answer_id": "STT-BRG-008", "score": 0.49014586210250854, "sibling_score": 0.49014586210250854, "answer_score": null, "sibling_qid": "KOL-2026-03-1198-Q006", "sibling_text": "special arrangements of tellshaft bearing to take load of propeller", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "7. Stern tube bearings — number, size, fixing, clearance, weardown and high-temperature", "cross_family": true }, { "answer_id": "SHAFT-CPP-001", "score": 0.48319563269615173, "sibling_score": 0.48319563269615173, "answer_score": null, "sibling_qid": "MUM-2026-04-2985-Q009", "sibling_text": "propeller curve", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "1. Propeller curve & load diagram", "cross_family": false } ] }, { "qid": "MUM-2025-12-0989-Q005", "text": "boiler tube material, types of tubes.", "family": "Boilers - Construction & Components", "subtopic": "Boiler Tubes / Economiser Tubes", "tid": "MUM-2025-12-0989", "tray": "review", "candidates": [ { "answer_id": "BLR-TUBE-P01-004", "score": 0.8182935118675232, "sibling_score": 0.8182935118675232, "answer_score": 0.6043042212724685, "sibling_qid": "MUM-2025-12-1222-Q006", "sibling_text": "boiler tube material", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "04. Tube material, dimensions and thickness checks", "cross_family": false }, { "answer_id": "BLR-TUBE-P01-002", "score": 0.7881270051002502, "sibling_score": 0.7881270051002502, "answer_score": 0.5500207901000976, "sibling_qid": "CHE-2026-05-0607-Q004", "sibling_text": "boiler tubes type", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "03. Types, functions and arrangement of boiler tubes", "cross_family": false }, { "answer_id": "BLR-TUBE-P01-001", "score": 0.759054958820343, "sibling_score": 0.759054958820343, "answer_score": null, "sibling_qid": "KOL-2018-08-1409-Q005", "sibling_text": "in boiler what are all types of tubes fitted", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "01. 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Introduction", "subtopic": "Type of Engine", "tid": "MUM-2025-12-1236", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.790944516658783, "sibling_score": 0.790944516658783, "answer_score": null, "sibling_qid": "CHE-2026-03-0250-Q003", "sibling_text": "type of engines sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.7139291167259216, "sibling_score": 0.7139291167259216, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q001", "sibling_text": "type of ship sailed and engines details", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7048671245574951, "sibling_score": 0.7048671245574951, "answer_score": null, "sibling_qid": 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"sibling_text": "nomenclature of me and ae asked together main engine and auxiliary engine are decoded on different rules don t run one set of letters across both main engine man b w two stroke cylinders stroke letter bore in cm programme letter control letter then compact version", "sibling_family": "", "via": "answer_title", "answer_title": "Nomenclature of ME and AE (asked together)", "cross_family": false }, { "answer_id": "ETP-344-P03-003", "score": 0.4634609282016754, "sibling_score": null, "answer_score": 0.4634609282016754, "sibling_qid": "", "sibling_text": "engine nomenclature layout mark number and engine constant designation order man b w cylinders stroke bore letter k l s g bore in cm m programme concept e electronic c camshaft design c compact b camshaft controlled exhaust hybrid mark number gi if gas injection tier rating stroke bore letters k short l long s super long g ultra long green the ratios are approximate design values not exact", "sibling_family": "", "via": "answer_title", "answer_title": "Engine nomenclature, layout, mark number and engine constant", "cross_family": false } ] }, { "qid": "MUM-2025-12-1236-Q003", "text": "How reversing is carried out in MEB engine?", "family": "2-Stroke - Reversing & Maneuvering", "subtopic": "Reversing - ME/MC/Sulzer", "tid": "MUM-2025-12-1236", "tray": "review", "candidates": [ { "answer_id": "REV-PROC-002", "score": 0.6608538031578064, "sibling_score": 0.6608538031578064, "answer_score": 0.41949938982725143, "sibling_qid": "MUM-2026-06-3558-Q002", "sibling_text": "reversing in me b engine and reversing in me c engine", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Reversing in MAN B&W MC / MC-C / ME-C / ME-B engines", "cross_family": false }, { "answer_id": "REV-PROC-001", "score": 0.6295373439788818, "sibling_score": 0.6295373439788818, "answer_score": 0.40778395980596543, "sibling_qid": "KOC-2022-07-0971-Q002", "sibling_text": "m e engine reversing", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Reversing a reversible two-stroke main engine — the principle", "cross_family": false }, { "answer_id": "RSTA-563-006", "score": 0.45168434679508207, "sibling_score": null, "answer_score": 0.45168434679508207, "sibling_qid": "", "sibling_text": "on an me c engine what commands the astern direction during reversing me c has no camshaft no mechanical reversing gear no engine driven starting air distributor astern is commanded electronically telegraph lever to astern the control system sets astern mode and the cylinder units execute it", "sibling_family": "", "via": "answer_title", "answer_title": "On an ME-C engine, what commands the astern direction during reversing?", "cross_family": false } ] }, { "qid": "MUM-2025-12-1236-Q009", "text": "What type of safety valve on your ship?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2025-12-1236", "tray": "review", "candidates": [ { "answer_id": "ACRV-005", "score": 0.7468377947807312, "sibling_score": 0.7468377947807312, "answer_score": 0.49069746136665343, "sibling_qid": "MUM-2026-06-3418-Q007", "sibling_text": "what is the type of safety valve in your ship", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.7360337972640991, "sibling_score": 0.7360337972640991, "answer_score": null, "sibling_qid": "MUM-2026-01-2904-Q004", "sibling_text": "type of safety valve on boiler ur ship valve type full explain", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "MR-DS-PV-B-006", "score": 0.6773707270622253, "sibling_score": 0.6773707270622253, "answer_score": null, "sibling_qid": "KOC-2026-09-2180-Q009", "sibling_text": "full bore safety valve construction", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "6. Deck isolating valve, deck relief/safety devices, and cargo-tank pressure", "cross_family": false } ] }, { "qid": "MUM-2025-12-1236-Q010", "text": "How much is the lift and what is significance of lift D/4?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2025-12-1236", "tray": "new", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-003", "score": 0.4256969690322876, "sibling_score": 0.4256969690322876, "answer_score": null, "sibling_qid": "KOL-2017-02-1842-Q002", "sibling_text": "accumulation of pr test wen it shud b carried blow down and hw it is controlled constructional difference in high lift n improved high lift", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "The accumulation test and the safety valve — required lift, how lift and capacity are verified, and why accumulation must stay inside the limit", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.4121081233024597, "sibling_score": 0.4121081233024597, "answer_score": null, "sibling_qid": "KOL-2026-01-3900-Q004", "sibling_text": "diff between improved high lift and high lift", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "SHAFT-ALN-002", "score": 0.37419259548187256, "sibling_score": 0.37419259548187256, "answer_score": null, "sibling_qid": "KOL-2025-07-3814-Q004", "sibling_text": "influence number in shaft allingment method load for unit lift in vertical direction", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Fair-curve alignment, influence numbers and propeller overhang", "cross_family": true } ] }, { "qid": "MUM-2025-12-1237-Q002", "text": "Written status", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-12-1237", "tray": "review", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.6559155583381653, "sibling_score": 0.6559155583381653, "answer_score": null, "sibling_qid": "MUM-2026-03-1294-Q001", "sibling_text": "status of writtens and orals", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.5299755334854126, "sibling_score": 0.5299755334854126, "answer_score": null, "sibling_qid": "KOC-2026-08-2106-Q001", "sibling_text": "status of written oral company type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": true }, { "answer_id": "FLAG-ST-001", "score": 0.5046485662460327, "sibling_score": 0.5046485662460327, "answer_score": null, "sibling_qid": "MUM-2025-11-0607-Q004", "sibling_text": "flag state", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Flag State — authority, role, duties and requirements", "cross_family": true } ] }, { "qid": "MUM-2025-12-1237-Q006", "text": "Lo filter have mgnet for what reason", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "LO Filter", "tid": "MUM-2025-12-1237", "tray": "new", "candidates": [ { "answer_id": "LOF-359-002", "score": 0.5097610950469971, "sibling_score": 0.5097610950469971, "answer_score": 0.32467925250530244, "sibling_qid": "MUM-2026-06-3370-Q004", "sibling_text": "purpose of magnets in main engine lube oil filter", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "FO Filter vs LO Filter — Which Is Finer, and Why?", "cross_family": false }, { "answer_id": "LOF-359-001", "score": 0.3863986134529114, "sibling_score": 0.3863986134529114, "answer_score": null, "sibling_qid": "MUM-2022-12-2720-Q005", "sibling_text": "what is beta filter", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Beta Ratio / Beta Efficiency", "cross_family": false }, { "answer_id": "LO-TEST-P02-001", "score": 0.37011122703552246, "sibling_score": 0.37011122703552246, "answer_score": null, "sibling_qid": "KOL-2020-06-1536-Q005", "sibling_text": "dispersion property of lo how it is achieved why needed additive name", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Lube-oil additives; detergency, dispersancy, lubricity and friction modifiers", "cross_family": false } ] }, { "qid": "MUM-2025-12-1791-Q002", "text": "Zener barrier", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Zener / Diode / Rectifier", "tid": "MUM-2025-12-1791", "tray": "review", "candidates": [ { "answer_id": "EPC-P02-03", "score": 0.7392571568489075, "sibling_score": 0.7392571568489075, "answer_score": 0.43752944767475127, "sibling_qid": "CHE-2026-02-0333-Q002", "sibling_text": "zener barrier", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Where is a zener diode used on board and why — voltage regulator, AVR, clipper — and explain one application in detail.", "cross_family": false }, { "answer_id": "EPC-P02-01", "score": 0.7387890815734863, "sibling_score": 0.7387890815734863, "answer_score": 0.47238284945487974, "sibling_qid": "MUM-2026-05-3272-Q003", "sibling_text": "zener barrier", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a zener diode? Draw its symbol, explain its working principle, and draw and explain its characteristic curve including the zener (breakdown) voltage.", "cross_family": false }, { "answer_id": "HAZ-EX-B-001", "score": 0.6714563369750977, "sibling_score": 0.6714563369750977, "answer_score": null, "sibling_qid": "CHE-2026-03-0358-Q005", "sibling_text": "zener barrier working in intrinsically safe", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Intrinsically safe (Ex i) equipment — what it is, how it works, where it is used, how you identify it", "cross_family": false } ] }, { "qid": "MUM-2025-12-1793-Q005", "text": "PMS , symmetric or asymmetric kya hota hai.. I don’t know about symmetric or asymmetric Results:Done with Class 2.", "family": "Electrical - Generator & Alternator", "subtopic": "Load Sharing Imbalance", "tid": "MUM-2025-12-1793", "tray": "new", "candidates": [ { "answer_id": "GEN-LSI-B-001", "score": 0.42706453800201416, "sibling_score": 0.42706453800201416, "answer_score": null, "sibling_qid": "KOC-2025-11-1624-Q006", "sibling_text": "2 ae running in parallel pf will be same", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01. Two alternators in parallel — same kW but different current and power factor: cause and correction", "cross_family": false }, { "answer_id": "PMS-392-002", "score": 0.4010375142097473, "sibling_score": 0.4010375142097473, "answer_score": null, "sibling_qid": "KOL-2021-04-1584-Q007", "sibling_text": "similarity between ism and pms few cross", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "How is PMS linked with the ISM Code and SOLAS maintenance requirements?", "cross_family": true }, { "answer_id": "LS-IMB-A-001", "score": 0.3916575312614441, "sibling_score": 0.3916575312614441, "answer_score": null, "sibling_qid": "MUM-2026-02-1973-Q002", "sibling_text": "2 a e running in parallel kw not equal reasons", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Two paralleled generators sharing unequal load — cause and correction", "cross_family": false } ] }, { "qid": "MUM-2025-12-1798-Q001", "text": "Which function, what about other?", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2025-12-1798", "tray": "review", "candidates": [ { "answer_id": "IMO-CODES-P03-002", "score": 0.7206024527549744, "sibling_score": 0.7206024527549744, "answer_score": null, "sibling_qid": "MUM-2026-03-0815-Q003", "sibling_text": "which function", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": false }, { "answer_id": "LRHR-B-010", "score": 0.5286761522293091, "sibling_score": 0.5286761522293091, "answer_score": null, "sibling_qid": "KOL-2018-09-0221-Q005", "sibling_text": "hru function n everything", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Explain the HRU's operating principle and full operation. Draw it.", "cross_family": true }, { "answer_id": "VIT-MECH-A-002", "score": 0.511337399482727, "sibling_score": 0.511337399482727, "answer_score": null, "sibling_qid": "CHE-2026-05-0578-Q003", "sibling_text": "vit function and lot of cross question", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How VIT works — varying the start of injection on the fuel pump", "cross_family": true } ] }, { "qid": "MUM-2025-12-1798-Q004", "text": "What all components for starting a motor or starter", "family": "Electrical - Motors & Starters", "subtopic": "Starter Panel / Control Circuit", "tid": "MUM-2025-12-1798", "tray": "review", "candidates": [ { "answer_id": "TG-MOTOR-003", "score": 0.7787949442863464, "sibling_score": 0.7787949442863464, "answer_score": 0.5429687738418579, "sibling_qid": "MUM-2026-07-3720-Q007", "sibling_text": "turning gear motor and starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What starter is used on the turning gear motor, and why not a star-delta or a soft starter?", "cross_family": false }, { "answer_id": "STR-DEC-A-001", "score": 0.7534074187278748, "sibling_score": 0.7534074187278748, "answer_score": null, "sibling_qid": "KOC-2023-12-1312-Q007", "sibling_text": "motor starters", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "IMSP-004", "score": 0.7507792115211487, "sibling_score": 0.7507792115211487, "answer_score": null, "sibling_qid": "MUM-2024-11-1469-Q007", "sibling_text": "star delta starter components", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Explain the star-delta starter, and what you find inside it when you open it — its components.", "cross_family": false } ] }, { "qid": "MUM-2025-12-1800-Q005", "text": "Flashing up procedure", "family": "Electrical - Generator & Alternator", "subtopic": "Residual Magnetism / Flashing", "tid": "MUM-2025-12-1800", "tray": "review", "candidates": [ { "answer_id": "RES-MAG-004", "score": 0.7636858820915222, "sibling_score": 0.7636858820915222, "answer_score": 0.29370827972888947, "sibling_qid": "MUM-2026-06-3511-Q011", "sibling_text": "flashing up procedure", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Field flashing — the procedure, where the battery connects, which terminal, and the precautions", "cross_family": false }, { "answer_id": "BLR-OPS-001", "score": 0.28132423758506775, "sibling_score": null, "answer_score": 0.28132423758506775, "sibling_qid": "", "sibling_text": "explain the procedure for raising steam in an auxiliary boiler from cold confirm water level true blow through both gauge glasses before firing open the air vent cock close it only once steam issues steadily", "sibling_family": "", "via": "answer_title", "answer_title": "Explain the procedure for raising steam in an auxiliary boiler from cold.", "cross_family": false }, { "answer_id": "SYNC-C-002", "score": 0.25999243557453156, "sibling_score": null, "answer_score": 0.25999243557453156, "sibling_qid": "", "sibling_text": "synchronising without a synchroscope lamp voltmeter and alternative methods same physics as the synchroscope find the instant the two sets are in phase equal voltage zero phase difference only the indicator changes three lamp all dark method one lamp across each pair of like phases r r y y b b sequence correct all three flash in unison sequence wrong they brighten in rotation flash rate frequency ", "sibling_family": "", "via": "answer_title", "answer_title": "Synchronising without a synchroscope — lamp, voltmeter and alternative methods", "cross_family": false } ] }, { "qid": "MUM-2025-12-1801-Q001", "text": "Type of ship sailed - I told him container ship then he asked what type of container ship ( I again repeat container ship.. I don't know what he meant by type of container ship)", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2025-12-1801", "tray": "review", "candidates": [ { "answer_id": "DB-TORBOX-B-003", "score": 0.8742870092391968, "sibling_score": 0.8742870092391968, "answer_score": null, "sibling_qid": "CHE-2026-04-0150-Q001", "sibling_text": "type of ship sailed container", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "What is a torsion box — definition and construction", "cross_family": false }, { "answer_id": "SOLAS12-BC-A-001", "score": 0.8041521906852722, "sibling_score": 0.8041521906852722, "answer_score": null, "sibling_qid": "MUM-2026-06-3382-Q001", "sibling_text": "type of ship sailed bulk carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "SOLAS definition and scope of a bulk carrier", "cross_family": false }, { "answer_id": "DBTB-A-002", "score": 0.7941145300865173, "sibling_score": 0.7941145300865173, "answer_score": null, "sibling_qid": "KOL-2025-09-1058-Q002", "sibling_text": "type of ship sailed special const in a container ship where fitted what exactly does why not in bulk carrier", "sibling_family": "", "via": "sibling", "answer_title": "Double-bottom tanks: purpose, advantages, disadvantages and stability effect", "cross_family": false } ] }, { "qid": "MUM-2025-12-1801-Q003", "text": "details of the alternator", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator / Generator", "tid": "MUM-2025-12-1801", "tray": "review", "candidates": [ { "answer_id": "ALT-GEN-P02-001", "score": 0.7036489844322205, "sibling_score": 0.7036489844322205, "answer_score": 0.5038897454738617, "sibling_qid": "KOC-2026-05-0030-Q007", "sibling_text": "alternator specifications", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Alternator/generator specifications, ratings and ship electrical supply details", "cross_family": false }, { "answer_id": "BL-ALT-C-002", "score": 0.5109576195478439, "sibling_score": null, "answer_score": 0.5109576195478439, "sibling_qid": "", "sibling_text": "how to identify onboard that an alternator is brushless open the exciter non drive end cover no brushes no brush boxes or springs no slip rings no carbon dust brushless defining proof no slip rings on the main rotor a visible shaft mounted rotating rectifier diode wheel plus surge suppressor", "sibling_family": "", "via": "answer_title", "answer_title": "How to identify onboard that an alternator is brushless", "cross_family": false }, { "answer_id": "ALT-GEN-P03-005", "score": 0.49714617133140565, "sibling_score": null, "answer_score": 0.49714617133140565, "sibling_qid": "", "sibling_text": "alternator construction parts and direct connection main parts stator rotor field shaft bearings frame exciter diode wheel or brushes avr terminal box cooling heaters and sensors stator carries the three phase output rotor carries the magnetic field", "sibling_family": "", "via": "answer_title", "answer_title": "Alternator construction, parts, and direct connection", "cross_family": false } ] }, { "qid": "MUM-2025-12-1803-Q005", "text": "IR test of busbar", "family": "Electrical - Distribution & MSB", "subtopic": "MSB / ESB / Switchboard", "tid": "MUM-2025-12-1803", "tray": "new", "candidates": [ { "answer_id": "IRT-C-014", "score": 0.546110987663269, "sibling_score": 0.546110987663269, "answer_score": null, "sibling_qid": "KOL-2022-11-2626-Q006", "sibling_text": "ir test open circut short circuit", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Detecting winding faults — open, short & continuity", "cross_family": true }, { "answer_id": "MSB-ESB-A-001", "score": 0.5140267610549927, "sibling_score": 0.5140267610549927, "answer_score": null, "sibling_qid": "MUM-2026-09-3866-Q006", "sibling_text": "how to check bus bar resistance", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Busbars: construction, arrangement, connection, checks and rating", "cross_family": true }, { "answer_id": "IRT-A-002", "score": 0.5092778205871582, "sibling_score": 0.5092778205871582, "answer_score": 0.38148473501205443, "sibling_qid": "KOC-2025-07-1547-Q006", "sibling_text": "ir testing", "sibling_family": "Electrical - 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both main engine man b w two stroke cylinders stroke letter bore in cm programme letter control letter then compact version", "sibling_family": "", "via": "answer_title", "answer_title": "Nomenclature of ME and AE (asked together)", "cross_family": false } ] }, { "qid": "MUM-2025-12-2884-Q007", "text": "Oil in observation tank, action", "family": "Boilers - Construction & Components", "subtopic": "Cascade Tank / Condenser", "tid": "MUM-2025-12-2884", "tray": "review", "candidates": [ { "answer_id": "CASC-COND-001", "score": 0.7206695675849915, "sibling_score": 0.7206695675849915, "answer_score": 0.5352818369865417, "sibling_qid": "MUM-2026-03-2642-Q007", "sibling_text": "oil sheen in observation tank actions", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Oil found in the cascade tank, hotwell or observation tank — actions, tracing the source, and preventing ingress", "cross_family": true }, { "answer_id": "CASC-COND-005", "score": 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(4-Stroke)", "subtopic": "Decarb Checks / Connecting Rod / Bottom End Bearing", "tid": "MUM-2025-12-2884", "tray": "review", "candidates": [ { "answer_id": "AECR-651-004", "score": 0.7998262643814087, "sibling_score": 0.7998262643814087, "answer_score": 0.5839507400989532, "sibling_qid": "MUM-2026-05-3226-Q001", "sibling_text": "how will you take the bottom end bearing clearance of ae without removing bearing", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "How do you inspect the bottom-end bearing, and how do you take the AE big-end clearance without removing it?", "cross_family": false }, { "answer_id": "AE-CRP-007", "score": 0.7812061309814453, "sibling_score": 0.7812061309814453, "answer_score": null, "sibling_qid": "MUM-2026-05-3280-Q003", "sibling_text": "how to take bottom end bearing clearance of ae", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE big-end / bottom-end bearing — inspection, bedding, nip and crush", "cross_family": false }, { "answer_id": "XHD-BRG-B-004", "score": 0.7378613352775574, "sibling_score": 0.7378613352775574, "answer_score": null, "sibling_qid": "MUM-2026-05-3265-Q007", "sibling_text": "bottom end cross head bearing clearance how to take", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Measuring crosshead bearing and guide-shoe clearances", "cross_family": false } ] }, { "qid": "MUM-2025-12-2884-Q013", "text": "What is pressure stage ratio of main air compressor", "family": "Air Compressor", "subtopic": "MAC / Air Compressor", "tid": "MUM-2025-12-2884", "tray": "review", "candidates": [ { "answer_id": "AC-STAGE-002", "score": 0.7251535058021545, "sibling_score": 0.7251535058021545, "answer_score": 0.5026175230741501, "sibling_qid": "KOL-2021-10-1639-Q002", "sibling_text": "intermediate pressure of main air 2 stage compressor", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Intermediate pressure / 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Srivastav,int - pravin nair 1 type of engine. MAN b&w 12 K90mcc. What does K stands for. what was sfoc of your engine.", "family": "SOLAS - General (HOLD)", "subtopic": "Solas Chapter 12 - Bulk", "tid": "MUM-2025-12-2885", "tray": "new", "candidates": [ { "answer_id": "ENG-NOM-003", "score": 0.5685782432556152, "sibling_score": 0.5685782432556152, "answer_score": null, "sibling_qid": "KOL-2018-03-1355-Q002", "sibling_text": "engine 6s60mcc what is s if it would be l then what does it mean stroke bore ratio of main engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Stroke letters S/L/K/G, stroke-bore ratio, mark and series number", "cross_family": true }, { "answer_id": "SFOC-001", "score": 0.5563750863075256, "sibling_score": 0.5563750863075256, "answer_score": null, "sibling_qid": "KOL-2024-05-1777-Q006", "sibling_text": "what is sfoc calculation of engine power", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What is SFOC? 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General (HOLD)", "subtopic": "Solas Chapter 12 - Bulk", "tid": "MUM-2025-12-2896", "tray": "review", "candidates": [ { "answer_id": "SOLAS12-BC-F-002", "score": 0.7162231802940369, "sibling_score": 0.7162231802940369, "answer_score": 0.5609091818332672, "sibling_qid": "KOL-2024-10-0873-Q002", "sibling_text": "constructional difference between bulk carrier and oil tanker holds", "sibling_family": "", "via": "sibling", "answer_title": "Constructional features & structural peculiarity (incl. vs tanker holds)", "cross_family": false }, { "answer_id": "SOLAS12-BC-A-001", "score": 0.6819536089897156, "sibling_score": 0.6819536089897156, "answer_score": 0.5560270011425018, "sibling_qid": "MUM-2026-06-3626-Q002", "sibling_text": "define bulk carrier", "sibling_family": "SOLAS - General (HOLD)", "via": "sibling", "answer_title": "SOLAS definition and scope of a bulk carrier", "cross_family": false }, { "answer_id": "LL-CONV-P06-001", "score": 0.6706802248954773, "sibling_score": 0.6706802248954773, "answer_score": null, "sibling_qid": "MUM-2023-11-0144-Q001", "sibling_text": "constructional difference between tanker and bulk carrier why tanker has less freeboard", "sibling_family": "", "via": "sibling", "answer_title": "LLC-P06-01 - Ship categories and freeboard differences: Type A, Type B and practical ship cases", "cross_family": false } ] }, { "qid": "MUM-2025-12-2899-Q005", "text": "Stuffing box full (wanted to know what it seals- I said everything starting from scavenge air, LO , blow past Tak Bol Diya did not accept)", "family": "Steering Gear & Hydraulics", "subtopic": "Stuffing Overhaul In Place", "tid": "MUM-2025-12-2899", "tray": "review", "candidates": [ { "answer_id": "SBPG-A-001", "score": 0.670476496219635, "sibling_score": 0.670476496219635, "answer_score": 0.41632334291934964, "sibling_qid": "MUM-2024-02-1074-Q001", "sibling_text": "construction of stuffing box components function of each component how sealing takes place", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Stuffing box — location, arrangement, construction and function", "cross_family": true }, { "answer_id": "SB-PRG-B-005", "score": 0.6675947308540344, "sibling_score": 0.6675947308540344, "answer_score": null, "sibling_qid": "MUM-2025-05-0969-Q008", "sibling_text": "stuffing box how it is fitted and purpose of each sealing and scrapper rings", "sibling_family": "2-Stroke - 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(Including Moss spherical tank supports)", "cross_family": false }, { "answer_id": "GC-TANK-006", "score": 0.44359999895095825, "sibling_score": 0.44359999895095825, "answer_score": null, "sibling_qid": "CHE-2025-11-0309-Q010", "sibling_text": "cross what is self supporting tank and draw", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Prismatic / self-supporting gas-carrier cargo tank", "cross_family": false }, { "answer_id": "MARVS-TANK-005", "score": 0.43908751010894775, "sibling_score": 0.43908751010894775, "answer_score": null, "sibling_qid": "KOC-2025-07-0633-Q008", "sibling_text": "type of tank name", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Gas-carrier ship-type classification — 2G, 2PG and the IGC-code type criteria", "cross_family": false } ] }, { "qid": "MUM-2026-01-0683-Q001", "text": "Type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-01-0683", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.837036669254303, "sibling_score": 0.837036669254303, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8018087148666382, "sibling_score": 0.8018087148666382, "answer_score": 0.5473707109689713, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8005447387695312, "sibling_score": 0.8005447387695312, "answer_score": 0.5217237085103988, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2026-01-0683-Q004", "text": "How to fight fire with different type of cargo", "family": "Fault Diagnosis & 2/E Actions", "subtopic": "Fault Diagnosis / 2E Action", "tid": "MUM-2026-01-0683", "tray": "new", "candidates": [ { "answer_id": "CH-FIRE-004", "score": 0.6354092359542847, "sibling_score": 0.6354092359542847, "answer_score": 0.521819868683815, "sibling_qid": "CHE-2026-08-0662-Q005", "sibling_text": "how do you fight cargo hold fire", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Cargo hold fire emergency action and firefighting procedure", "cross_family": true }, { "answer_id": "CONT-FIRE-002", "score": 0.631892204284668, "sibling_score": 0.631892204284668, "answer_score": 0.5145971655845641, "sibling_qid": "MUM-2026-04-0922-Q009", "sibling_text": "fire fighting of containers outside and inside cargo hold", "sibling_family": "Cargo Ops - Containers", "via": "sibling", "answer_title": "How do you fight a fire in containers on deck, or where the affected container is not directly accessible?", "cross_family": true }, { "answer_id": "FIRE-P04-07", "score": 0.6156420707702637, "sibling_score": 0.6156420707702637, "answer_score": null, "sibling_qid": "MUM-2024-02-0166-Q002", "sibling_text": "means of fighting fire in cargo hold of car carrier ship", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Ro-Ro / vehicle-carrier fire safety — SOLAS II-2/20, II-2/20-1 and MSC.550(108)", "cross_family": true } ] }, { "qid": "MUM-2026-01-0683-Q011", "text": "Certificate need before starting bunker operation", "family": "MARPOL - 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Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is the difference between EU MRV and IMO DCS?", "cross_family": true }, { "answer_id": "EECS-017", "score": 0.47017547488212585, "sibling_score": 0.47017547488212585, "answer_score": 0.3068634018301964, "sibling_qid": "KOL-2025-09-1080-Q007", "sibling_text": "eedi eeoi attained required eu mrv", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "17. Attained and required EEDI, EEOI, and EU MRV", "cross_family": true }, { "answer_id": "IMO-CODES-P03-002", "score": 0.272612065076828, "sibling_score": null, "answer_score": 0.272612065076828, "sibling_qid": "", "sibling_text": "imo overview structure committees certificates imsas ui and carbon strategy", "sibling_family": "", "via": "answer_title", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": false } ] }, { "qid": "MUM-2026-01-0693-Q004S6", "text": "ism when came in picture,ism latest ammendment,soft skills as per ism", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "MUM-2026-01-0693", "tray": "new", "candidates": [ { "answer_id": "BC-IMSBC-005", "score": 0.5897617936134338, "sibling_score": 0.5897617936134338, "answer_score": 0.3446786433458328, "sibling_qid": "MUM-2026-06-3603-Q001", "sibling_text": "latest amendments in ism and when", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "5. Latest IMSBC Code amendments", "cross_family": false }, { "answer_id": "ISM-ELEM-004", "score": 0.4816248416900635, "sibling_score": 0.4816248416900635, "answer_score": null, "sibling_qid": "MUM-2023-03-0096-Q004", "sibling_text": "ism resource and personnel", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Resources & personnel (Element 6)", "cross_family": false }, { "answer_id": "ISM-AUD-P02-006", "score": 0.48147743940353394, "sibling_score": 0.48147743940353394, "answer_score": null, "sibling_qid": "MUM-2026-06-3542-Q002", "sibling_text": "management review of ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Master's review, company / management review and change management", "cross_family": false } ] }, { "qid": "MUM-2026-01-0703-Q001", "text": "Difference bt safety and security.", "family": "Risk & Safety Management", "subtopic": "Safety vs Security", "tid": "MUM-2026-01-0703", "tray": "review", "candidates": [ { "answer_id": "MR-DS-PV-B-003", "score": 0.7137016654014587, "sibling_score": 0.7137016654014587, "answer_score": null, "sibling_qid": "MUM-2026-07-3681-Q004", "sibling_text": "safety vs security", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "3. Alarms, trips, valves, and abnormal conditions of the deck seal", "cross_family": false }, { "answer_id": "ISPS-SL-003", "score": 0.596190869808197, "sibling_score": 0.596190869808197, "answer_score": 0.3852022781968117, "sibling_qid": "KOL-2025-09-1061-Q002", "sibling_text": "security 2 3 difference", "sibling_family": "ISPS", "via": "sibling", "answer_title": "Security levels — who sets them, ship vs port, level 2 vs 3", "cross_family": true }, { "answer_id": "ACRV-005", "score": 0.5730222463607788, "sibling_score": 0.5730222463607788, "answer_score": 0.37809323966503144, "sibling_qid": "MUM-2023-03-1042-Q003", "sibling_text": "safety relief v v difference", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": true } ] }, { "qid": "MUM-2026-01-0703-Q002", "text": "Which chapter of SOLAS talks about security?", "family": "ISPS", "subtopic": "Solas Ch 11 - ISPS Link", "tid": "MUM-2026-01-0703", "tray": "new", "candidates": [ { "answer_id": "SOLAS12-C-001", "score": 0.5589923858642578, "sibling_score": 0.5589923858642578, "answer_score": null, "sibling_qid": "MUM-2026-06-3540-Q002", "sibling_text": "solas chap 12", "sibling_family": "ISPS", "via": "sibling", "answer_title": "Explain SOLAS Chapter XII for bulk carriers — oral-exam overview", "cross_family": false }, { "answer_id": "SOLAS12-BC-B-002", "score": 0.5583264827728271, "sibling_score": 0.5583264827728271, "answer_score": null, "sibling_qid": "MUM-2026-06-3434-Q001", "sibling_text": "solas chap 12", "sibling_family": "ISPS", "via": "sibling", "answer_title": "SOLAS Chapter XII — the 14 regulations (list)", "cross_family": false }, { "answer_id": "ISPS-SL-003", "score": 0.5226029753684998, "sibling_score": 0.5226029753684998, "answer_score": null, "sibling_qid": "KOC-2024-10-0422-Q009", "sibling_text": "who decides the security level", "sibling_family": "ISPS", "via": "sibling", "answer_title": "Security levels — who sets them, ship vs port, level 2 vs 3", "cross_family": false } ] }, { "qid": "MUM-2026-01-0703-Q003", "text": "When there is conflict between safety and security what will you do as 2/E", "family": "Risk & Safety Management", "subtopic": "Safety vs Security", "tid": "MUM-2026-01-0703", "tray": "new", "candidates": [ { "answer_id": "MR-DS-PV-B-003", "score": 0.5610085129737854, "sibling_score": 0.5610085129737854, "answer_score": null, "sibling_qid": "MUM-2026-07-3681-Q004", "sibling_text": "safety vs security", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "3. Alarms, trips, valves, and abnormal conditions of the deck seal", "cross_family": false }, { "answer_id": "ESE-P02-008", "score": 0.490601122379303, "sibling_score": 0.490601122379303, "answer_score": null, "sibling_qid": "KOC-2025-03-0568-Q007", "sibling_text": "how will you confirm it is safe to enter", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "ESE-P02-08. Before, during and after: confirming a space is safe to enter", "cross_family": false }, { "answer_id": "TNK-SAFE-BF26-003", "score": 0.4807974100112915, "sibling_score": 0.4807974100112915, "answer_score": null, "sibling_qid": "MUM-2026-04-0883-Q002", "sibling_text": "safeties onboard", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "What safeties, including electrical safeties and Ex ratings, are provided on the deck of a tanker?", "cross_family": false } ] }, { "qid": "MUM-2026-01-0705-Q004", "text": "Poker gauge, how to use", "family": "Gauges & Tools", "subtopic": "Poker Gauge", "tid": "MUM-2026-01-0705", "tray": "new", "candidates": [ { "answer_id": "PROP-PN-C-002", "score": 0.6415762305259705, "sibling_score": 0.6415762305259705, "answer_score": null, "sibling_qid": "KOC-2026-05-2124-Q005", "sibling_text": "what are you measuring with poker gauge", "sibling_family": "Gauges & Tools", "via": "sibling", "answer_title": "Propeller drop — measurement and consequences", "cross_family": false }, { "answer_id": "DUS-P1-02", "score": 0.5232042670249939, "sibling_score": 0.5232042670249939, "answer_score": null, "sibling_qid": "KOL-2023-07-3625-Q004", "sibling_text": "3 special tools for drydocking poker gauge how to ensure that reading is taken at same place", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Plans, drawings and special tools kept ready for drydock — engine-department view", "cross_family": true }, { "answer_id": "RUD-DROP-001", "score": 0.47776585817337036, "sibling_score": 0.47776585817337036, "answer_score": null, "sibling_qid": "KOC-2021-05-1760-Q003", "sibling_text": "rudder drop measurement using poker gauge ans by first unit on tdc the remove rope guard drain oil by removing both top and bottom plugs remove copper gasket and put poker gauge till the matching mark on poker gauge then press the measuring pin and lock it and take readings take on both top and bottom", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": true } ] }, { "qid": "MUM-2026-01-0705-Q006", "text": "How to close an observation?", "family": "ISM Code", "subtopic": "Corrective Action", "tid": "MUM-2026-01-0705", "tray": "new", "candidates": [ { "answer_id": "ISMNC-004", "score": 0.49786484241485596, "sibling_score": 0.49786484241485596, "answer_score": 0.24232472628355026, "sibling_qid": "KOL-2025-07-0990-Q004", "sibling_text": "observation", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Differentiate between an observation and a non-conformity under the ISM Code.", "cross_family": false }, { "answer_id": "UNCLOS-001", "score": 0.44801604747772217, "sibling_score": 0.44801604747772217, "answer_score": null, "sibling_qid": "KOC-2025-03-0581-Q014", "sibling_text": "what is unclose", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is UNCLOS? 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Horizontal centrifugal pump — where the dial gauge goes and what values apply.", "cross_family": false }, { "answer_id": "CTRL-003", "score": 0.5145338177680969, "sibling_score": 0.5145338177680969, "answer_score": null, "sibling_qid": "KOL-2026-07-4281-Q002", "sibling_text": "spilt control in boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Split-range control — working and use", "cross_family": false } ] }, { "qid": "MUM-2026-01-1847-Q008", "text": "Efficiency Number on motor", "family": "Electrical - Motors & Starters", "subtopic": "Induction Motor (General / Working)", "tid": "MUM-2026-01-1847", "tray": "new", "candidates": [ { "answer_id": "BOW-THR-003", "score": 0.6389479041099548, "sibling_score": 0.6389479041099548, "answer_score": null, "sibling_qid": "CHE-2026-02-0341-Q008", "sibling_text": "rating of the motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Bow-thruster motor — type, supply voltage, starter, connection and VFD control", "cross_family": false }, { "answer_id": "IRT-C-006", "score": 0.6100702881813049, "sibling_score": 0.6100702881813049, "answer_score": null, "sibling_qid": "MUM-2023-04-1384-Q003", "sibling_text": "ir value of motor", "sibling_family": "Electrical - 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Protection & Relays", "via": "sibling", "answer_title": "03. What checks are carried out on an auxiliary engine after an overspeed trip?", "cross_family": true }, { "answer_id": "OCR-185-001", "score": 0.4701092839241028, "sibling_score": 0.4701092839241028, "answer_score": null, "sibling_qid": "KOL-2017-07-2139-Q002", "sibling_text": "over current trip testing", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Testing an overcurrent relay / overcurrent trip onboard", "cross_family": true }, { "answer_id": "MSB-ESB-C-001", "score": 0.44888943433761597, "sibling_score": 0.44888943433761597, "answer_score": null, "sibling_qid": "KOC-2024-10-1418-Q005", "sibling_text": "what are the trips in msb but not not esb", "sibling_family": "", "via": "sibling", "answer_title": "MSB-ESB interconnection, tie breaker/interlock and emergency supply transfer", "cross_family": false } ] }, { "qid": "MUM-2026-01-1852-Q002", "text": "Soft foot of pump meaning", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Soft Foot", "tid": "MUM-2026-01-1852", "tray": "new", "candidates": [ { "answer_id": "SHAFT-ALN-001", "score": 0.463900625705719, "sibling_score": 0.463900625705719, "answer_score": null, "sibling_qid": "MUM-2026-06-3585-Q008", "sibling_text": "sag gap in alignment what is soft foot in motors", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "Shaft alignment — methods and procedure", "cross_family": true }, { "answer_id": "PCD-P02-02", "score": 0.4345952868461609, "sibling_score": 0.4345952868461609, "answer_score": null, "sibling_qid": "KOL-2022-07-3555-Q003", "sibling_text": "weight of pump is taken by what", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Vertical centrifugal pump — who / what takes the axial load and weight", "cross_family": true }, { "answer_id": "WRG-003", "score": 0.43184396624565125, "sibling_score": 0.43184396624565125, "answer_score": null, "sibling_qid": "CHE-2026-04-0500-Q002", "sibling_text": "purpose of wearing in pump where it is located in pump what to measure in it", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Measuring the wear ring — what you measure, how, and where the wearing clearance is taken on an axial pump", "cross_family": true } ] }, { "qid": "MUM-2026-01-1852-Q004", "text": "Shot peaning", "family": "Materials & Metallurgy", "subtopic": "Shot Peening / Work Hardening / Forging / Spark Erosion", "tid": "MUM-2026-01-1852", "tray": "new", "candidates": [ { "answer_id": "MAIN-BRG-D-007", "score": 0.45833665132522583, "sibling_score": 0.45833665132522583, "answer_score": null, "sibling_qid": "KOL-2026-04-3946-Q002", "sibling_text": "hot shot in bearing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main bearing inspection — wear assessment, wear types, discolouration, dressing", "cross_family": true }, { "answer_id": "FOP-326-A-002", "score": 0.43450257182121277, "sibling_score": 0.43450257182121277, "answer_score": null, "sibling_qid": "KOL-2021-04-1587-Q001", "sibling_text": "firing sequence", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "How is the firing order derived / “calculated” (e.g. 6-cylinder)?", "cross_family": true }, { "answer_id": "LLC-SURV-P01-001", "score": 0.412078320980072, "sibling_score": 0.412078320980072, "answer_score": null, "sibling_qid": "MUM-2026-02-0761-Q010", "sibling_text": "panting pounding load line survey as 2e", "sibling_family": "", "via": "sibling", "answer_title": "Load line survey preparation as Second Engineer: engine-room scope, machinery openings, tanks/vents, valves and overboard checks", "cross_family": false } ] }, { "qid": "MUM-2026-01-1852-Q007", "text": "Ofb trip, checks to be carried out", "family": "Boilers - Burner Management", "subtopic": "OFB Trip Checks", "tid": "MUM-2026-01-1852", "tray": "new", "candidates": [ { "answer_id": "OS-TRIP-003", "score": 0.47527316212654114, "sibling_score": 0.47527316212654114, "answer_score": 0.336353999376297, "sibling_qid": "MUM-2026-01-1850-Q010", "sibling_text": "checks to be carried out on ae after overspeed trip", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "03. What checks are carried out on an auxiliary engine after an overspeed trip?", "cross_family": true }, { "answer_id": "OCR-185-001", "score": 0.4701092839241028, "sibling_score": 0.4701092839241028, "answer_score": null, "sibling_qid": "KOL-2017-07-2139-Q002", "sibling_text": "over current trip testing", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Testing an overcurrent relay / overcurrent trip onboard", "cross_family": true }, { "answer_id": "MSB-ESB-C-001", "score": 0.4488894045352936, "sibling_score": 0.4488894045352936, "answer_score": null, "sibling_qid": "KOC-2024-10-1418-Q005", "sibling_text": "what are the trips in msb but not not esb", "sibling_family": "", "via": "sibling", "answer_title": "MSB-ESB interconnection, tie breaker/interlock and emergency supply transfer", "cross_family": false } ] }, { "qid": "MUM-2026-01-1860-Q001S6", "text": "Starter routine", "family": "Electrical - Motors & Starters", "subtopic": "Starter Maintenance / Inspection", "tid": "MUM-2026-01-1860", "tray": "new", "candidates": [ { "answer_id": "IMSP-004", "score": 0.5659005641937256, "sibling_score": 0.5659005641937256, "answer_score": null, "sibling_qid": "MUM-2026-01-1860-Q001S2", "sibling_text": "start dela starter components", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Explain the star-delta starter, and what you find inside it when you open it — its components.", "cross_family": false }, { "answer_id": "IMSP-002", "score": 0.5553601384162903, "sibling_score": 0.5553601384162903, "answer_score": null, "sibling_qid": "MUM-2025-11-1754-Q002", "sibling_text": "type starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What types of starter are used onboard? Name and explain the starting methods for a three-phase induction motor, including the soft starter.", "cross_family": false }, { "answer_id": "STR-DEC-A-001", "score": 0.554469645023346, "sibling_score": 0.554469645023346, "answer_score": null, "sibling_qid": "MUM-2026-05-3192-Q008", "sibling_text": "type starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false } ] }, { "qid": "MUM-2026-01-1861-Q001", "text": "Pf on your last ship", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2026-01-1861", "tray": "new", "candidates": [ { "answer_id": "SFOC-003", "score": 0.6293478608131409, "sibling_score": 0.6293478608131409, "answer_score": null, "sibling_qid": "KOL-2018-01-1346-Q002", "sibling_text": "sfoc value in ur last ship", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What is the SFOC of your main engine? With BHP, stroke and cylinder oil consumption", "cross_family": true }, { "answer_id": "KGF-A-004", "score": 0.5746166706085205, "sibling_score": 0.5746166706085205, "answer_score": null, "sibling_qid": "KOC-2024-08-0400-Q002", "sibling_text": "mid ship section of your last ship", "sibling_family": "", "via": "sibling", "answer_title": "Hull / midship cross-section: draw & identify", "cross_family": false }, { "answer_id": "PF-A-002", "score": 0.5712313055992126, "sibling_score": 0.5712313055992126, "answer_score": null, "sibling_qid": "MUM-2026-02-1975-Q001", "sibling_text": "what was the powerfactor on your last ship 0 8 lagg", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "Lagging, leading, unity, resistive, inductive, capacitive — and DC", "cross_family": false } ] }, { "qid": "MUM-2026-01-1876-Q002", "text": "Back emf", "family": "Electrical - Distribution & MSB", "subtopic": "", "tid": "MUM-2026-01-1876", "tray": "new", "candidates": [ { "answer_id": "DCMOT-A-003", "score": 0.5221994519233704, "sibling_score": 0.5221994519233704, "answer_score": 0.33103360086679456, "sibling_qid": "KOC-2024-12-1452-Q006", "sibling_text": "back emf internal no qns", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Back EMF in a DC motor", "cross_family": true }, { "answer_id": "ALT-GEN-P04-004", "score": 0.502763569355011, "sibling_score": 0.502763569355011, "answer_score": 0.2816163405776024, "sibling_qid": "KOL-2025-09-2864-Q002", "sibling_text": "what is emf", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Alternator EMF generation and EMF equation", "cross_family": true }, { "answer_id": "TBR-TT-P02-001", "score": 0.502586841583252, "sibling_score": 0.502586841583252, "answer_score": null, "sibling_qid": "MUM-2026-06-3655-Q014", "sibling_text": "what is emf", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Tie rod tightening / hydraulic tensioning procedure", "cross_family": true } ] }, { "qid": "MUM-2026-01-1894-Q005", "text": "Types of thyristor ?", "family": "2-Stroke - Operations & Casualty", "subtopic": "Casualty / Emergency Stop", "tid": "MUM-2026-01-1894", "tray": "review", "candidates": [ { "answer_id": "SCR-306-A-001", "score": 0.7490544319152832, "sibling_score": 0.7490544319152832, "answer_score": 0.541276091337204, "sibling_qid": "CHE-2026-08-3899-Q009", "sibling_text": "thyristors", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What an SCR is and how it works", "cross_family": true }, { "answer_id": "SCR-306-B-001", "score": 0.7367742657661438, "sibling_score": 0.7367742657661438, "answer_score": 0.5609332978725433, "sibling_qid": "MUM-2025-09-1682-Q002", "sibling_text": "thyristor transistor", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Thyristor / SCR vs other semiconductor devices", "cross_family": true }, { "answer_id": "SCR-306-A-004", "score": 0.727320671081543, "sibling_score": 0.727320671081543, "answer_score": null, "sibling_qid": "MUM-2025-09-1640-Q004", "sibling_text": "thyristor type and functioning", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Applications and onboard uses", "cross_family": true } ] }, { "qid": "MUM-2026-01-1896-Q007", "text": "how flow is sensed, principle, components.", "family": "2-Stroke - Operations & Casualty", "subtopic": "Casualty / Emergency Stop", "tid": "MUM-2026-01-1896", "tray": "new", "candidates": [ { "answer_id": "TPL-SENS-B-002", "score": 0.5075863599777222, "sibling_score": 0.5075863599777222, "answer_score": null, "sibling_qid": "KOL-2023-04-2650-Q005", "sibling_text": "working principle of flow sensor 1 question not being able to recall no cross questions asked", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Sensors, transducers & transmitters — and why 4–20 mA", "cross_family": true }, { "answer_id": "DP-TX-004", "score": 0.4954225420951843, "sibling_score": 0.4954225420951843, "answer_score": 0.39918018281459805, "sibling_qid": "KOC-2024-11-1437-Q006", "sibling_text": "dp flow sensor", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Differential-pressure flowmeter — principle, types and square-root extraction", "cross_family": true }, { "answer_id": "TPL-SENS-B-004", "score": 0.4820912778377533, "sibling_score": 0.4820912778377533, "answer_score": null, "sibling_qid": "KOL-2025-10-2887-Q006", "sibling_text": "flow meter complete working principle how calculated", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Shipboard T/P/L instrumentation — principles & the remote-indication chain", "cross_family": true } ] }, { "qid": "MUM-2026-01-1906-Q004", "text": "■Which Authorities certify electrical equipment", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "MUM-2026-01-1906", "tray": "review", "candidates": [ { "answer_id": "ELEC-SURV-003", "score": 0.7936084270477295, "sibling_score": 0.7936084270477295, "answer_score": 0.4152033403515816, "sibling_qid": "MUM-2026-05-3287-Q004", "sibling_text": "which authorities certify electrical equipment", "sibling_family": "SOLAS - General", "via": "sibling", "answer_title": "Documents, certificates & trend records", "cross_family": false }, { "answer_id": "CABLE-INS-E-005", "score": 0.6086875796318054, "sibling_score": 0.6086875796318054, "answer_score": null, "sibling_qid": "KOC-2023-07-1267-Q010", "sibling_text": "electrical equipment standard", "sibling_family": "", "via": "sibling", "answer_title": "Cable properties, safety, standards and condition", "cross_family": false }, { "answer_id": "ELEC-SURV-004", "score": 0.5766706466674805, "sibling_score": 0.5766706466674805, "answer_score": null, "sibling_qid": "MUM-2026-02-1967-Q006", "sibling_text": "all docs and certifications for electrical survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Preparing & carrying out the survey as Second Engineer", "cross_family": false } ] }, { "qid": "MUM-2026-01-1906-Q007", "text": "Speed control methods of motor?", "family": "Electrical - Motors & Starters", "subtopic": "Ward Leonard System", "tid": "MUM-2026-01-1906", "tray": "review", "candidates": [ { "answer_id": "WARD-LEO-001", "score": 0.8080279231071472, "sibling_score": 0.8080279231071472, "answer_score": null, "sibling_qid": "MUM-2026-05-3287-Q007", "sibling_text": "speed control methods of motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Explain the Ward Leonard system and its speed-governing principle", "cross_family": false }, { "answer_id": "DCMOT-CMU-B-001", "score": 0.7967632412910461, "sibling_score": 0.7967632412910461, "answer_score": 0.5480614125728607, "sibling_qid": "MUM-2026-05-3171-Q009", "sibling_text": "speed control method of dc motor only methods", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "DC motor speed control — the three methods", "cross_family": false }, { "answer_id": "IM-TSS-P03-FINAL-1-001", "score": 0.787011981010437, "sibling_score": 0.787011981010437, "answer_score": 0.5350810050964355, "sibling_qid": "MUM-2025-10-0512-Q007", "sibling_text": "how to control speed of motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Speed control of induction / AC motors — methods and onboard use", "cross_family": false } ] }, { "qid": "MUM-2026-01-1912-Q002S2", "text": "Ward Leonard System ?", "family": "Electrical - Motors & Starters", "subtopic": "Ward Leonard System", "tid": "MUM-2026-01-1912", "tray": "new", "candidates": [ { "answer_id": "WARD-LEO-001", "score": 0.621590793132782, "sibling_score": 0.621590793132782, "answer_score": 0.32649601101875303, "sibling_qid": "MUM-2024-12-1475-Q002", "sibling_text": "what is ward leonard", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Explain the Ward Leonard system and its speed-governing principle", "cross_family": false }, { "answer_id": "WARD-LEO-003", "score": 0.3169622465968132, "sibling_score": null, "answer_score": 0.3169622465968132, "sibling_qid": "", "sibling_text": "speed control of a deck windlass motor by ward leonard windlass duty needs high breakout torque a fine creep speed frequent reversal and controlled lowering ward leonard delivers all four heaving speed by the generator field armature voltage control high starting torque because the motor field is held full", "sibling_family": "", "via": "answer_title", "answer_title": "Speed control of a deck windlass motor by Ward Leonard", "cross_family": false }, { "answer_id": "WARD-LEO-002", "score": 0.29380033612251283, "sibling_score": null, "answer_score": 0.29380033612251283, "sibling_qid": "", "sibling_text": "ward leonard in electric steering gear construction working and feedback chain a c motor constant speed ward leonard generator variable field control element d c steering motor rudder stock through reduction gearing helm telemotor order sets the generator field magnitude and polarity rudder speed and direction", "sibling_family": "", "via": "answer_title", "answer_title": "Ward Leonard in electric steering gear — construction, working and feedback", "cross_family": false } ] }, { "qid": "MUM-2026-01-1912-Q002S4", "text": "What is transducer ,", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Thyristor / SCR", "tid": "MUM-2026-01-1912", "tray": "new", "candidates": [ { "answer_id": "TPL-SENS-B-002", "score": 0.6126573085784912, "sibling_score": 0.6126573085784912, "answer_score": null, "sibling_qid": "MUM-2023-11-1416-Q001", "sibling_text": "transducers types where used", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Sensors, transducers & transmitters — and why 4–20 mA", "cross_family": true }, { "answer_id": "AUC-SEN-01", "score": 0.6054867506027222, "sibling_score": 0.6054867506027222, "answer_score": 0.351134192943573, "sibling_qid": "MUM-2026-03-1997-Q002", "sibling_text": "transducer", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Transducers and transmitters — what they are and how they classify", "cross_family": true }, { "answer_id": "XFMR-THY-D-001", "score": 0.5504242777824402, "sibling_score": 0.5504242777824402, "answer_score": null, "sibling_qid": "KOC-2022-10-1204-Q005", "sibling_text": "tranformer", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Transformer — principle and working", "cross_family": false } ] }, { "qid": "MUM-2026-01-2526-Q001", "text": "Company Institute name", "family": "Status & Introduction", "subtopic": "Company Introduction", "tid": "MUM-2026-01-2526", "tray": "new", "candidates": [ { "answer_id": "STCW-MAN-006", "score": 0.4623664617538452, "sibling_score": 0.4623664617538452, "answer_score": null, "sibling_qid": "NOI-2026-09-0008-Q001", "sibling_text": "training institue sea time after class 4 coc", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "What are the levels and categories of seafarer under STCW, and what are the duties of the Second Engineer at management level?", "cross_family": false }, { "answer_id": "OTH-CONV-002", "score": 0.4540995955467224, "sibling_score": 0.4540995955467224, "answer_score": null, "sibling_qid": "KOL-2026-07-4287-Q001", "sibling_text": "colreg full form", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "COLREG — full form, number of rules, parts and contents", "cross_family": true }, { "answer_id": "AV6-P04-04", "score": 0.4457290768623352, "sibling_score": 0.4457290768623352, "answer_score": null, "sibling_qid": "MUM-2026-04-3029-Q003", "sibling_text": "s p global", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Explain the “S&P Global” reference only to the extent it relates to the recorded GHG oral; declare the reading, since the source thread does not resolve the examiner’s intended angle.", "cross_family": true } ] }, { "qid": "MUM-2026-01-2533-Q001", "text": "Type of ship sailed", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-01-2533", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8460181951522827, "sibling_score": 0.8460181951522827, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8450309634208679, "sibling_score": 0.8450309634208679, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7928885817527771, "sibling_score": 0.7928885817527771, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "MUM-2026-01-2537-Q002", "text": "Pintle clearance and how many pintles and what is locking pintle.", "family": "2-Stroke - Operations & Casualty", "subtopic": "Casualty / Emergency Stop", "tid": "MUM-2026-01-2537", "tray": "new", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.5598644018173218, "sibling_score": 0.5598644018173218, "answer_score": null, "sibling_qid": "MUM-2026-05-3227-Q009", "sibling_text": "pintle clearances", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": true }, { "answer_id": "METAL-LOCK-001", "score": 0.48560577630996704, "sibling_score": 0.48560577630996704, "answer_score": null, "sibling_qid": "KOL-2018-04-1367-Q007", "sibling_text": "6 metal locking", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "What is metal locking / stitching, why use it, materials & benefits", "cross_family": true }, { "answer_id": "TR-TB-PA-005", "score": 0.4619080424308777, "sibling_score": 0.4619080424308777, "answer_score": 0.3971401482820511, "sibling_qid": "MUM-2025-12-2889-Q003", "sibling_text": "tie bolt pinch screw location", "sibling_family": "2-Stroke - 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{ "answer_id": "HULL-PAINT-002", "score": 0.5083014965057373, "sibling_score": 0.5083014965057373, "answer_score": null, "sibling_qid": "CHE-2026-02-0110-Q012", "sibling_text": "rudder internal painting", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Types of hull coating, the paint scheme by section, and why each is used", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.5083014965057373, "sibling_score": 0.5083014965057373, "answer_score": null, "sibling_qid": "MUM-2026-05-3150-Q003", "sibling_text": "rudder internal painting", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false } ] }, { "qid": "MUM-2026-01-2905-Q010", "text": "Finally he gave me my function 3...!!", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2026-01-2905", "tray": "new", "candidates": [ { "answer_id": "SEEMP-123-B-001", "score": 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and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2026-01-2909-Q007", "text": "What is dezinfication and where it happens in ship", "family": "", "subtopic": "", "tid": "MUM-2026-01-2909", "tray": "new", "candidates": [ { "answer_id": "CORR-DEZ-001", "score": 0.5011985898017883, "sibling_score": 0.5011985898017883, "answer_score": null, "sibling_qid": "MUM-2026-04-2668-Q004", "sibling_text": "dezincifiaction", "sibling_family": "Materials & Metallurgy", "via": "sibling", "answer_title": "What is dezincification?", "cross_family": false }, { "answer_id": "HT-A-001", "score": 0.49639397859573364, "sibling_score": 0.49639397859573364, "answer_score": null, "sibling_qid": "CHE-2025-08-0191-Q005", "sibling_text": "onboard ship most applicable treatment process", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Heat treatment: what it is, the main methods, and why it is done", "cross_family": false }, { 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Bilge cleaning and compartment-entry precautions", "cross_family": false } ] }, { "qid": "MUM-2026-01-2912-Q007", "text": "Fuel is not a compatible action 2E", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Bio Fuel / Methanol / Ammonia", "tid": "MUM-2026-01-2912", "tray": "new", "candidates": [ { "answer_id": "FQCC-583-B-013", "score": 0.6200399994850159, "sibling_score": 0.6200399994850159, "answer_score": null, "sibling_qid": "MUM-2025-12-2512-Q006", "sibling_text": "bad fuel received so steps taken as 2e", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Bad fuel received — steps taken as 2/E", "cross_family": false }, { "answer_id": "FQCC-583-B-010", "score": 0.5811126232147217, "sibling_score": 0.5811126232147217, "answer_score": 0.3564956545829773, "sibling_qid": "CHE-2025-12-0238-Q002", "sibling_text": "what is incompatable and unstable fuel", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Stability, compatibility, asphaltenes and commingling — what happens when you blend two fuels?", "cross_family": false }, { "answer_id": "FQCC-583-A-007", "score": 0.539409339427948, "sibling_score": 0.539409339427948, "answer_score": 0.3737307697534561, "sibling_qid": "MUM-2022-09-1024-Q002", "sibling_text": "as a 2e how you will check and segregate fuels compatibility issues how you will handle how to do compatibility test how difference in fuel oil can occur from suppliers what is causing compatibility issue", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Compatibility, stability and blending", "cross_family": false } ] }, { "qid": "MUM-2026-02-0730-Q010", "text": "Rudder pressure testing.", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "MUM-2026-02-0730", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.8107675909996033, "sibling_score": 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] }, { "qid": "MUM-2026-02-0756-Q006", "text": "Who is responsible person and who is competent person in permit", "family": "Risk & Safety Management", "subtopic": "Permit to Work / Enclosed Space", "tid": "MUM-2026-02-0756", "tray": "new", "candidates": [ { "answer_id": "ISM-DPA-002", "score": 0.3769725263118744, "sibling_score": 0.3769725263118744, "answer_score": null, "sibling_qid": "KOC-2023-03-0172-Q004", "sibling_text": "ism who is responsible for ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "DPA basis : which convention, which code, and who is responsible for ISM", "cross_family": true }, { "answer_id": "NPDES-330-003", "score": 0.3763620525598526, "sibling_score": null, "answer_score": 0.3763620525598526, "sibling_qid": "", "sibling_text": "responsibilities of the second engineer and chief engineer under vgp npdes compliance permittee owner operator the permit binds the master person in charge and involved crew to implement it the c e and 2 e split is 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be seattle and waht do you know about blue card", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 release procedure, shutdowns, re-entry and casualty-use decisions", "cross_family": false }, { "answer_id": "CLC-CIV-A-007", "score": 0.45673972368240356, "sibling_score": 0.45673972368240356, "answer_score": 0.35268988013267516, "sibling_qid": "KOL-2026-01-1160-Q009", "sibling_text": "who s responsible for leak from bunker oil and cargo oil", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Bunker Convention — scope, liability and certificate", "cross_family": false }, { "answer_id": "CLC-CIV-A-001", "score": 0.45382702350616455, "sibling_score": 0.45382702350616455, "answer_score": null, "sibling_qid": "KOC-2022-08-1191-Q009", "sibling_text": "explain clc convention after explanation he asked which insurance covers for spillage", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "CLC Convention — objective, scope and shipowner liability", "cross_family": false } ] }, { "qid": "MUM-2026-02-0766-Q001", "text": "Why lodicator is approved type,and its purpose,blu code", "family": "Cargo Ops - Bulk Carriers", "subtopic": "IMSBC / Grain / BLU Code", "tid": "MUM-2026-02-0766", "tray": "new", "candidates": [ { "answer_id": "SOLAS12-BC-D-001", "score": 0.5265638828277588, "sibling_score": 0.5265638828277588, "answer_score": 0.29318066537380216, "sibling_qid": "MUM-2026-06-3413-Q001", "sibling_text": "why load indicator is approved type and its purpose", "sibling_family": "Stability & Loadicator", "via": "sibling", "answer_title": "Loadicator — why a loading instrument is required, and the loading-restriction concern", "cross_family": true }, { "answer_id": "BC-CODES-342-004", "score": 0.40736013650894165, "sibling_score": 0.40736013650894165, "answer_score": 0.3073541074991226, "sibling_qid": "MUM-2026-06-3413-Q002", "sibling_text": "blu code", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "The BLU Code", "cross_family": false }, { "answer_id": "LL-CONV-P04-002", "score": 0.3954145610332489, "sibling_score": 0.3954145610332489, "answer_score": 0.3060190111398697, "sibling_qid": "KOC-2025-01-0497-Q010", "sibling_text": "ll marking purpose", "sibling_family": "", "via": "sibling", "answer_title": "Load Line Convention, certificates, assigning authority and detention risk", "cross_family": false } ] }, { "qid": "MUM-2026-02-0766-Q007S5", "text": "fference between ism and iso", "family": "", "subtopic": "", "tid": "MUM-2026-02-0766", "tray": "new", "candidates": [ { "answer_id": "WIDAS-SMK-007", "score": 0.6453579068183899, "sibling_score": 0.6453579068183899, "answer_score": null, "sibling_qid": "MUM-2026-03-0855-Q003", "sibling_text": "diff between iso ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Smoke sampling line — testing, confirming clear, and what is in the tube", "cross_family": false }, { "answer_id": "ISM-AUD-P02-002", "score": 0.4837265610694885, "sibling_score": 0.4837265610694885, "answer_score": null, "sibling_qid": "MUM-2025-10-0519-Q004", "sibling_text": "what is ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM Code — what it is, purpose, objectives and structure", "cross_family": false }, { "answer_id": "ISM-DPA-002", "score": 0.4622037410736084, "sibling_score": 0.4622037410736084, "answer_score": null, "sibling_qid": "KOC-2023-03-0172-Q004", "sibling_text": "ism who is responsible for ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "DPA basis : which convention, which code, and who is responsible for ISM", "cross_family": false } ] }, { "qid": "MUM-2026-02-0766-Q007S6", "text": "Rating of boiler ignitor", "family": "Boilers - Construction & Components", "subtopic": "Boiler Components / Circulation", "tid": "MUM-2026-02-0766", "tray": "review", "candidates": [ { "answer_id": "TFR-THY-F-001", "score": 0.7885381579399109, "sibling_score": 0.7885381579399109, "answer_score": 0.44541893899440765, "sibling_qid": "MUM-2026-04-2991-Q008", "sibling_text": "rating of boiler ignitor", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Ignition transformer & boiler-burner application", "cross_family": true }, { "answer_id": "BLR-CAP-BOILER-CAPACITY-RATING-001", "score": 0.6310210824012756, "sibling_score": 0.6310210824012756, "answer_score": null, "sibling_qid": "KOL-2024-12-3732-Q002", "sibling_text": "how boiler rating is done last ship rating of your boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "How is boiler rating or boiler capacity defined onboard?", "cross_family": false }, { "answer_id": "BFEYE-340-003", "score": 0.5650932788848877, "sibling_score": 0.5650932788848877, "answer_score": null, "sibling_qid": "KOL-2025-09-2868-Q006", "sibling_text": "how is boiler fired with focus on ignition transformer", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler firing / ignition sequence: pilot burner, primary and secondary flame, ignition transformer", "cross_family": true } ] }, { "qid": "MUM-2026-02-0769-Q001", "text": "What types of ships sailed on?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-02-0769", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.7556055188179016, "sibling_score": 0.7556055188179016, "answer_score": null, "sibling_qid": "MUM-2026-02-0769-Q001", "sibling_text": "what types of ships sailed on", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7203580141067505, "sibling_score": 0.7203580141067505, "answer_score": 0.4427047699689865, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LL-CONV-P06-001", "score": 0.41811793595552443, "sibling_score": null, "answer_score": 0.41811793595552443, "sibling_qid": "", "sibling_text": "llc p06 01 ship categories and freeboard differences type a type b and practical ship cases", "sibling_family": "", "via": "answer_title", "answer_title": "LLC-P06-01 - Ship categories and freeboard differences: Type A, Type B and practical ship cases", "cross_family": false } ] }, { "qid": "MUM-2026-02-0774-Q001", "text": "is imo and hssc same, wt is their relation.", "family": "Surveys - Statutory", "subtopic": "HSSC", "tid": "MUM-2026-02-0774", "tray": "new", "candidates": [ { "answer_id": "HSSC-001", "score": 0.4983999729156494, "sibling_score": 0.4983999729156494, "answer_score": 0.3382178500294685, "sibling_qid": "MUM-2026-09-3989-Q009", "sibling_text": "hssc", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is HSSC — the Harmonised System of Survey and Certification? 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Coal cargo — hazards and precautions", "cross_family": false } ] }, { "qid": "MUM-2026-02-0777-Q004", "text": "For bunkering fire and pollution prevention safety measure he want to heard about scupper plug. 6 what is annax IV and what are the pollutants for environment", "family": "Drydock & Underwater Surveys", "subtopic": "Bottom Plug / Bedrock", "tid": "MUM-2026-02-0777", "tray": "new", "candidates": [ { "answer_id": "AVI-SCOPE-005", "score": 0.5723207592964172, "sibling_score": 0.5723207592964172, "answer_score": null, "sibling_qid": "KOL-2025-11-1122-Q004", "sibling_text": "marpol annex 6 what are the pollutants", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What pollutants, gases, emissions and substances are controlled under MARPOL Annex VI?", "cross_family": true }, { "answer_id": "VOC-MGT-003", "score": 0.5473529696464539, "sibling_score": 0.5473529696464539, "answer_score": null, "sibling_qid": "KOC-2023-03-0154-Q006", "sibling_text": "what all causes pollution as per annex 6 tell voc also in case of tanker vecs", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Managing and controlling VOC - VECS and onboard measures", "cross_family": true }, { "answer_id": "MARPOL-OV-002", "score": 0.4885972380638122, "sibling_score": null, "answer_score": 0.4885972380638122, "sibling_qid": "", "sibling_text": "the six annexes and what each covers i oil ii noxious liquid substances in bulk iii harmful substances in packaged form iv sewage v garbage vi air pollution annex vi scope sox sulphur limit nox tier i ii iii particulate matter ozone depleting substances vocs shipboard incineration fuel oil quality and energy efficiency eedi eexi cii seemp chapter 4", "sibling_family": "", "via": "answer_title", "answer_title": "The six annexes and what each covers", "cross_family": false } ] }, { "qid": "MUM-2026-02-0782-Q001", "text": "Type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-02-0782", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8361091017723083, "sibling_score": 0.8361091017723083, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8013882637023926, "sibling_score": 0.8013882637023926, "answer_score": 0.5470469176769256, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8000955581665039, "sibling_score": 0.8000955581665039, "answer_score": 0.5211816549301147, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2026-02-0782-Q002", "text": "Attempt", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2026-02-0782", "tray": "new", "candidates": [ { "answer_id": "IGAT-583-004", "score": 0.4683014452457428, "sibling_score": 0.4683014452457428, "answer_score": null, "sibling_qid": "KOC-2021-07-0013-Q006", "sibling_text": "ig fail what action int", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "As Second Engineer, what actions do you take if the inert gas plant of a crude oil tanker is repeatedly tripping on IG high temperature?", "cross_family": true }, { "answer_id": "PI-211-004", "score": 0.4605143964290619, "sibling_score": 0.4605143964290619, "answer_score": null, "sibling_qid": "KOL-2023-03-2641-Q002", "sibling_text": "dar test", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "PI and DAR — how they relate, their purpose, and acceptable values", "cross_family": true }, { "answer_id": "FCL-P03-001", "score": 0.4465964138507843, "sibling_score": 0.4465964138507843, "answer_score": null, "sibling_qid": "KOL-2020-11-3361-Q003", "sibling_text": "ae timing check", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "AE / auxiliary-engine fuel pump timing check and adjustment", "cross_family": true } ] }, { "qid": "MUM-2026-02-0782-Q003", "text": "Presea training from", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2026-02-0782", "tray": "new", "candidates": [ { "answer_id": "ISPS-SL-002", "score": 0.4720570743083954, "sibling_score": 0.4720570743083954, "answer_score": null, "sibling_qid": "KOL-2019-10-0338-Q004", "sibling_text": "training imparted under isps", "sibling_family": "ISPS", "via": "sibling", "answer_title": "Elements, contents, functional requirements, training and equipment", "cross_family": true }, { "answer_id": "BDC-P04-03", "score": 0.4445722699165344, "sibling_score": 0.4445722699165344, "answer_score": null, "sibling_qid": "KOC-2025-06-1539-Q007", "sibling_text": "preparation", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "Battery load test on board — preparation, deciding the load, and reading the result", "cross_family": true }, { "answer_id": "FIRE-P05-01", "score": 0.4422915577888489, "sibling_score": 0.4422915577888489, "answer_score": null, "sibling_qid": "KOL-2026-05-0078-Q001", "sibling_text": "training manual", "sibling_family": "", "via": "sibling", "answer_title": "Fire-safety training manual — SOLAS II-2 Reg 15 contents and location", "cross_family": false } ] }, { "qid": "MUM-2026-02-0782-Q004", "text": "Sailing time after class4", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2026-02-0782", "tray": "new", "candidates": [ { "answer_id": "STCW-MAN-006", "score": 0.5615068674087524, "sibling_score": 0.5615068674087524, "answer_score": null, "sibling_qid": "NOI-2026-09-0008-Q001", "sibling_text": "training institue sea time after class 4 coc", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "What are the levels and categories of seafarer under STCW, and what are the duties of the Second Engineer at management level?", "cross_family": true }, { "answer_id": "STAB-D-004", "score": 0.4746719002723694, "sibling_score": 0.4746719002723694, "answer_score": null, "sibling_qid": "KOL-2018-03-0160-Q004", "sibling_text": "time period of ship depends on what", "sibling_family": "", "via": "sibling", "answer_title": "Ship Stability Basics - Equilibrium States, Factors, and Motions", "cross_family": false }, { "answer_id": "RES-PROP-P03-004", "score": 0.43937426805496216, "sibling_score": 0.43937426805496216, "answer_score": 0.34832915812730786, "sibling_qid": "KOC-2025-12-0761-Q006", "sibling_text": "checks during seatrial how ship speed is calculated answered speed log then said distance trveled by time", "sibling_family": "", "via": "sibling", "answer_title": "4. Sea trials before handover and ship-speed verification", "cross_family": false } ] }, { "qid": "MUM-2026-02-0783-Q001", "text": "How many months sailed after class 2.", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2026-02-0783", "tray": "new", "candidates": [ { "answer_id": "STAB-D-004", "score": 0.4034736156463623, "sibling_score": 0.4034736156463623, "answer_score": null, "sibling_qid": "KOL-2018-03-0160-Q004", "sibling_text": "time period of ship depends on what", "sibling_family": "", "via": "sibling", "answer_title": "Ship Stability Basics - Equilibrium States, Factors, and Motions", "cross_family": false }, { "answer_id": "BLR-OPS-009", "score": 0.40090835094451904, "sibling_score": 0.40090835094451904, "answer_score": null, "sibling_qid": "KOL-2018-09-3186-Q004", "sibling_text": "auxiliary boiler maintenance during normal sea voyage for trouble free operation with gods grace and help from our community passed both fn and eventually class 2 thankuall", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "What maintenance do you carry out on the auxiliary boiler during a normal sea voyage for trouble-free operation?", "cross_family": true }, { "answer_id": "DDHSC-004", "score": 0.3947446942329407, "sibling_score": 0.3947446942329407, "answer_score": null, "sibling_qid": "KOL-2018-08-3165-Q005", "sibling_text": "actions before and after flooding in drydock cleared class 2 thanks everyone keep posting questions", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "What checks are carried out after docking, and what are the first checks once the ship is out of dock?", "cross_family": true } ] }, { "qid": "MUM-2026-02-0783-Q002", "text": "Which company you are in.", "family": "Status & Introduction", "subtopic": "Company Introduction", "tid": "MUM-2026-02-0783", "tray": "new", "candidates": [ { "answer_id": "LLST-AB-002", "score": 0.5300044417381287, "sibling_score": 0.5300044417381287, "answer_score": null, "sibling_qid": "KOC-2026-03-0873-Q001", "sibling_text": "type of ship company", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false }, { "answer_id": "AV6-P04-04", "score": 0.49256834387779236, "sibling_score": 0.49256834387779236, "answer_score": null, "sibling_qid": "MUM-2026-04-3029-Q003", "sibling_text": "s p global", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Explain the “S&P Global” reference only to the extent it relates to the recorded GHG oral; declare the reading, since the source thread does not resolve the examiner’s intended angle.", "cross_family": true }, { "answer_id": "EICU-MAN-P02-002", "score": 0.4575966000556946, "sibling_score": 0.4575966000556946, "answer_score": null, "sibling_qid": "KOC-2025-10-2078-Q002", "sibling_text": "mithsubshi uec manuering", 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"answer_title": "Fore-end / fore-peak structure: draw and describe", "cross_family": false }, { "answer_id": "PPS-230-002", "score": 0.5735321640968323, "sibling_score": 0.5735321640968323, "answer_score": 0.4755854696035385, "sibling_qid": "KOL-2019-10-0334-Q005", "sibling_text": "panting stringer and diagram of forward portion of ship", "sibling_family": "", "via": "sibling", "answer_title": "Panting beams and panting stringers: purpose in the forward structure", "cross_family": false }, { "answer_id": "BSBH-420-002", "score": 0.5537058711051941, "sibling_score": 0.5537058711051941, "answer_score": null, "sibling_qid": "MUM-2026-05-3340-Q009", "sibling_text": "forepeak construction", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Fore-end / forepeak construction forward of the collision bulkhead — members and cross-section", "cross_family": false } ] }, { "qid": "MUM-2026-02-0787-Q001", "text": "type of ship", "family": "Status & Introduction", 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"fore end construction", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Fore-end / forepeak construction forward of the collision bulkhead — members and cross-section", "cross_family": true }, { "answer_id": "PPS-230-006", "score": 0.5497036576271057, "sibling_score": 0.5497036576271057, "answer_score": null, "sibling_qid": "CHE-2026-09-3914-Q002", "sibling_text": "forward ship constructional arrangements", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Fore-end / fore-peak structure: draw and describe", "cross_family": false } ] }, { "qid": "MUM-2026-02-0791-Q001", "text": "Show your room", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2026-02-0791", "tray": "new", "candidates": [ { "answer_id": "EDG-P01-002", "score": 0.46647512912750244, "sibling_score": 0.46647512912750244, "answer_score": null, "sibling_qid": "CHE-2025-08-0292-Q003", "sibling_text": "wt u check in emcy gen room", "sibling_family": "Electrical - 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"sibling_text": "refer room drain arrangement", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Refrigerated-room drain and moisture-removal arrangement", "cross_family": true } ] }, { "qid": "MUM-2026-02-0795-Q002", "text": "Show desktop (share screen).", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2026-02-0795", "tray": "new", "candidates": [ { "answer_id": "MAC-353-007", "score": 0.47783127427101135, "sibling_score": 0.47783127427101135, "answer_score": null, "sibling_qid": "MUM-2025-05-1516-Q006", "sibling_text": "shared screen with mac circuit diagram and asks component and function", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Main air compressor circuit — components and their functions", "cross_family": true }, { "answer_id": "CPFE-583-001", "score": 0.4677463173866272, "sibling_score": 0.4677463173866272, "answer_score": null, "sibling_qid": "KOL-2019-03-1445-Q008", "sibling_text": "framo system draw n show", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "The Framo system — what it is, how it works, and the driving mechanism", "cross_family": true }, { "answer_id": "FLR-WFB-P01-006", "score": 0.3838229775428772, "sibling_score": 0.3838229775428772, "answer_score": null, "sibling_qid": "CHE-2026-09-3920-Q009", "sibling_text": "web frame explain", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Web frames — what they are, where situated, how they give transverse strength", "cross_family": true } ] }, { "qid": "MUM-2026-02-0795-Q003", "text": "Show passport.", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2026-02-0795", "tray": "new", "candidates": [ { "answer_id": "HKC-IHM-B-003", "score": 0.555365800857544, "sibling_score": 0.555365800857544, "answer_score": null, "sibling_qid": "KOC-2023-03-0152-Q009", "sibling_text": "green passport", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "How are the Green Passport and the IHM related?", "cross_family": true }, { "answer_id": "CERT-LIST-P02-003", "score": 0.462907612323761, "sibling_score": 0.462907612323761, "answer_score": null, "sibling_qid": "KOC-2025-03-0578-Q009", "sibling_text": "what all certificates carried onboard passenger ship", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Certificates that decide ship type and permitted cargo", "cross_family": true }, { "answer_id": "CERT-LIST-P01-001", "score": 0.4361352324485779, "sibling_score": 0.4361352324485779, "answer_score": null, "sibling_qid": "KOL-2026-05-0084-Q010", "sibling_text": "certificate issued by flag", "sibling_family": "", "via": "sibling", "answer_title": "List the statutory certificates carried onboard a ship.", "cross_family": false } ] }, { "qid": "MUM-2026-02-0795-Q004", "text": "Show cdc.", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2026-02-0795", "tray": "new", "candidates": [ { "answer_id": "DCP-FIXED-A-001", "score": 0.39826130867004395, "sibling_score": 0.39826130867004395, "answer_score": null, "sibling_qid": "KOC-2024-05-0344-Q005", "sibling_text": "draw dcp", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Draw and explain the fixed DCP/dry-powder deck fire-fighting system", "cross_family": true }, { "answer_id": "DCP-PPC-003", "score": 0.39064744114875793, "sibling_score": 0.39064744114875793, "answer_score": 0.2668568432331085, "sibling_qid": "KOC-2025-06-0614-Q003", "sibling_text": "dcp working", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "C3 — DCP — General Working, Advantages, Disadvantages & Common Issues", "cross_family": true }, { "answer_id": "ALPHA-LUB-B-002", "score": 0.3618003726005554, "sibling_score": 0.3618003726005554, "answer_score": null, "sibling_qid": "KOL-2025-05-3782-Q004", "sibling_text": "ldcs details", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Alpha, Pulse, intelligent and adaptive lubrication — and latest developments", "cross_family": true } ] }, { "qid": "MUM-2026-02-0795-Q005", "text": "type of ships sailed?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-02-0795", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8040161728858948, "sibling_score": 0.8040161728858948, "answer_score": null, "sibling_qid": "MUM-2026-02-1272-Q002", "sibling_text": "type of ships sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7888457179069519, "sibling_score": 0.7888457179069519, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7683929800987244, "sibling_score": 0.7683929800987244, "answer_score": 0.5071729212999344, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "MUM-2026-02-0796-Q002", "text": "Wat will effect on flag if ship detained by psc", "family": "Surveys - Statutory", "subtopic": "Detention / Clear Ground", "tid": "MUM-2026-02-0796", "tray": "new", "candidates": [ { "answer_id": "DCG-002", "score": 0.5785843729972839, "sibling_score": 0.5785843729972839, "answer_score": 0.4555889159440994, "sibling_qid": "KOL-2025-09-1090-Q002", "sibling_text": "psc inspection deficiency in engine room that can detain ur ship", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What are the reasons for PSC detention and what is a detainable deficiency? 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What is PSC, why it is required, and its legal basis and scope", "cross_family": false } ] }, { "qid": "MUM-2026-02-0796-Q004S4", "text": "Ballast recirculation methods ?", "family": "", "subtopic": "", "tid": "MUM-2026-02-0796", "tray": "new", "candidates": [ { "answer_id": "BWM-D1D2-P02-001", "score": 0.6040127277374268, "sibling_score": 0.6040127277374268, "answer_score": null, "sibling_qid": "KOC-2025-09-0661-Q003", "sibling_text": "ballast water pump through method", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Regulation D-1 — ballast water exchange standard and the accepted methods", "cross_family": false }, { "answer_id": "BWMS-STD-B-001", "score": 0.5629225373268127, "sibling_score": 0.5629225373268127, "answer_score": 0.4482604771852493, "sibling_qid": "KOL-2023-12-0794-Q004", "sibling_text": "ballast water d1 standard what is the principle for d1 standard 95 volumetric exchange wanted to listen types of d1 ballast exchange methods", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "D-1 Ballast Water Exchange Standard & the exchange methods", "cross_family": false }, { "answer_id": "BWMS-A-002", "score": 0.5496446490287781, "sibling_score": 0.5496446490287781, "answer_score": null, "sibling_qid": "KOL-2022-01-0593-Q002", "sibling_text": "d1 and d2 in balast water manag methods of ballst exch chemicals in treatment", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "D-1 versus D-2: the two ballast water standards", "cross_family": false } ] }, { "qid": "MUM-2026-02-0796-Q004S5", "text": "DCP how stops chain reaction chemically ?", "family": "", "subtopic": "", "tid": "MUM-2026-02-0796", "tray": "new", "candidates": [ { "answer_id": "DCP-B-002", "score": 0.5297925472259521, "sibling_score": 0.5297925472259521, "answer_score": null, "sibling_qid": "CHE-2025-08-0026-Q001", "sibling_text": "portable dcp extinguisher safeties expected answer relief hole dcp breaks the chain chemical reactions asked to draw it with exact location of the hole", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Portable DCP extinguisher — construction, working, safeties, application and empty indication", "cross_family": false }, { "answer_id": "DCP-PPC-002", "score": 0.4871550381183624, "sibling_score": 0.462222158908844, "answer_score": 0.4871550381183624, "sibling_qid": "MUM-2025-09-0471-Q001", "sibling_text": "dcp mechanism for extinguish fire", "sibling_family": "SOLAS - Fire Safety", "via": "answer_title", "answer_title": "C2 — How DCP Extinguishes Fire: Chain-Reaction Inhibition", "cross_family": false }, { "answer_id": "DCP-PPC-001", "score": 0.4611744284629822, "sibling_score": 0.4611744284629822, "answer_score": null, "sibling_qid": "KOL-2023-04-0743-Q001", "sibling_text": "dcp powder chemical name", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "C1 — Composition, Chemical Names & Anti-caking Agents", "cross_family": false } ] }, { "qid": "MUM-2026-02-0995-Q003", "text": "De Aerator", "family": "", "subtopic": "", "tid": "MUM-2026-02-0995", "tray": "new", "candidates": [ { "answer_id": "AIR-REF-004", "score": 0.5141588449478149, "sibling_score": 0.5141588449478149, "answer_score": null, "sibling_qid": "MUM-2025-01-2790-Q006", "sibling_text": "air venting of ref", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "4. Detecting and purging air from a refrigeration system", "cross_family": false }, { "answer_id": "AEDEC-291-003", "score": 0.4968107342720032, "sibling_score": 0.4968107342720032, "answer_score": null, "sibling_qid": "KOL-2020-01-3309-Q001", "sibling_text": "ae decarb checks", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "3. Pre-start checks after decarb / recommissioning", "cross_family": false }, { "answer_id": "AIR-DIST-001", "score": 0.48452338576316833, "sibling_score": 0.48452338576316833, "answer_score": null, "sibling_qid": "KOC-2025-04-1037-Q003", "sibling_text": "air distributor", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Air distributor — construction, types and working", "cross_family": false } ] }, { "qid": "MUM-2026-02-1254-Q006", "text": "Hysteresis in fair curve method", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Transformer Theory", "tid": "MUM-2026-02-1254", "tray": "new", "candidates": [ { "answer_id": "XFMR-THY-C-001", "score": 0.5285158753395081, "sibling_score": 0.5285158753395081, "answer_score": 0.3266294598579407, "sibling_qid": "MUM-2025-12-1827-Q006", "sibling_text": "what is hysteresis", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Hysteresis loss in a transformer — cause, the factors it depends on, and how to cut it", "cross_family": false }, { "answer_id": "SHAFT-ALN-002", "score": 0.4938628673553467, "sibling_score": 0.4938628673553467, "answer_score": null, "sibling_qid": "MUM-2026-05-3343-Q007", "sibling_text": "shaft alignment type fair curve alignment and hysteresis in fair curve alignment", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Fair-curve alignment, influence numbers and propeller overhang", "cross_family": true }, { "answer_id": "AUC-CTL-05", "score": 0.4660077393054962, "sibling_score": 0.4660077393054962, "answer_score": 0.37092454433441163, "sibling_qid": "MUM-2023-06-2175-Q002", "sibling_text": "control loop hysteresis", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Deadband, hysteresis and alarm latitude", "cross_family": true } ] }, { "qid": "MUM-2026-02-1255-Q003", "text": "What is the resin material", "family": "Materials & Metallurgy", "subtopic": "Material Properties", "tid": "MUM-2026-02-1255", "tray": "new", "candidates": [ { "answer_id": "CHK-RM-003", "score": 0.47365349531173706, "sibling_score": 0.47365349531173706, "answer_score": 0.38919882774353026, "sibling_qid": "KOL-2024-11-3721-Q003", "sibling_text": "what is epoxy", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What is epoxy and what is it made of? Advantages of an epoxy chock; what are Chockfast and Devcon; and where and how would you carry out an epoxy repair?", "cross_family": true }, { "answer_id": "BUNK-SAMP-004", "score": 0.47296980023384094, "sibling_score": 0.47296980023384094, "answer_score": null, "sibling_qid": "KOC-2025-02-2060-Q017", "sibling_text": "material", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Sample container, material, quantity, marking and bottles", "cross_family": true }, { "answer_id": "CHK-RM-002", "score": 0.468786358833313, "sibling_score": 0.468786358833313, "answer_score": 0.33076510727405545, "sibling_qid": "KOL-2021-08-3437-Q004", "sibling_text": "resin chok how to do", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Explain resin chocking — what it is, how it is done, and how resin chocks are cast and poured.", "cross_family": true } ] }, { "qid": "MUM-2026-02-1255-Q010", "text": "Material of resin", "family": "Materials & Metallurgy", "subtopic": "Material Properties", "tid": "MUM-2026-02-1255", "tray": "new", "candidates": [ { "answer_id": "BUNK-SAMP-004", "score": 0.5666621923446655, "sibling_score": 0.5666621923446655, "answer_score": null, "sibling_qid": "KOC-2025-02-2060-Q017", "sibling_text": "material", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Sample container, material, quantity, marking and bottles", "cross_family": true }, { "answer_id": "HULL-PAINT-002", "score": 0.5283247828483582, "sibling_score": 0.5283247828483582, "answer_score": null, "sibling_qid": "MUM-2023-08-2741-Q009", "sibling_text": "paint material", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Types of hull coating, the paint scheme by section, and why each is used", "cross_family": true }, { "answer_id": "ANCH-CHN-A-002", "score": 0.5085217952728271, "sibling_score": 0.5085217952728271, "answer_score": null, "sibling_qid": "MUM-2024-12-0232-Q003", "sibling_text": "anchor material", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Chain construction: material, stud links & joining shackles", "cross_family": true } ] }, { "qid": "MUM-2026-02-1255-Q011", "text": "Procedure of pouring resin", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Chocks (Resin/Metal)", "tid": "MUM-2026-02-1255", "tray": "new", "candidates": [ { "answer_id": "CHK-RM-002", "score": 0.5566084980964661, "sibling_score": 0.5566084980964661, "answer_score": 0.4217112764716148, "sibling_qid": "KOL-2021-08-3437-Q004", "sibling_text": "resin chok how to do", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Explain resin chocking — what it is, how it is done, and how resin chocks are cast and poured.", "cross_family": false }, { "answer_id": "PROP-PN-C-001", "score": 0.4712619185447693, "sibling_score": 0.4712619185447693, "answer_score": null, "sibling_qid": "KOL-2024-12-3734-Q004", "sibling_text": "propeller fitting over sleeve material of epoxy how to inject epoxy", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Keyless propeller — sleeve, boss fit and material", "cross_family": true }, { "answer_id": "CHK-RM-003", "score": 0.45903539657592773, "sibling_score": 0.45903539657592773, "answer_score": null, "sibling_qid": "KOL-2025-03-3751-Q002", "sibling_text": "where will u carry out epoxy repair what is epoxy made of how will u carry out epoxy repair", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What is epoxy and what is it made of? Advantages of an epoxy chock; what are Chockfast and Devcon; and where and how would you carry out an epoxy repair?", "cross_family": false } ] }, { "qid": "MUM-2026-02-1255-Q013", "text": "How me connected with bedplate and type of girders used", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Bedplate / A-Frame", "tid": "MUM-2026-02-1255", "tray": "new", "candidates": [ { "answer_id": "FWFB-P02-007", "score": 0.6247264742851257, "sibling_score": 0.6247264742851257, "answer_score": null, "sibling_qid": "MUM-2026-05-3306-Q002", "sibling_text": "bedplate material types construction transverse longitudinal 3 girder etc material", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Transverse and longitudinal girders: arrangement and purpose", "cross_family": true }, { "answer_id": "CHK-RM-001", "score": 0.5482491254806519, "sibling_score": 0.5482491254806519, "answer_score": null, "sibling_qid": "KOL-2018-10-1428-Q003", "sibling_text": "how bedplate is connected to hull", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What are chocks? 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Combustion, Power & Performance", "via": "sibling", "answer_title": "Function tests on the main engine (ME electronic engine)", "cross_family": true }, { "answer_id": "NDT-METH-P01-001", "score": 0.5371348261833191, "sibling_score": 0.5371348261833191, "answer_score": null, "sibling_qid": "MUM-2024-01-2216-Q006", "sibling_text": "tests destructive and non destructive", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "NDT methods, NDT vs destructive testing, and onboard use", "cross_family": false }, { "answer_id": "ETP-344-P01-008", "score": 0.5200635194778442, "sibling_score": 0.5200635194778442, "answer_score": 0.348359252512455, "sibling_qid": "MUM-2024-10-0964-Q003", "sibling_text": "test bed checks on main engine how power measured type of dynamomenter used and checks carried out", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Verifying power — shop test, test bed, sea trial", "cross_family": true } ] }, { "qid": "MUM-2026-02-1256-Q003", "text": "In AE how rotation of bearing prevented", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE 4-Stroke Theory", "tid": "MUM-2026-02-1256", "tray": "new", "candidates": [ { "answer_id": "AE-CRP-007", "score": 0.5847750306129456, "sibling_score": 0.5847750306129456, "answer_score": null, "sibling_qid": "MUM-2025-12-1227-Q013", "sibling_text": "aux engine bearing nip and crush why bearing dont rotate many cross on this", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE big-end / bottom-end bearing — inspection, bedding, nip and crush", "cross_family": false }, { "answer_id": "BRG-NOM-004", "score": 0.5684410333633423, "sibling_score": 0.5684410333633423, "answer_score": null, "sibling_qid": "MUM-2026-05-3185-Q007S2", "sibling_text": "what prevents thin shell bearing from rotation how does it work", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bearing Nip/Crush, Clearance, and How the Shell is Held", "cross_family": true }, { "answer_id": "AE-CSB-346-001", "score": 0.557949960231781, "sibling_score": 0.557949960231781, "answer_score": 0.3954672753810882, "sibling_qid": "KOL-2023-08-3632-Q001", "sibling_text": "ae thrust bearing", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Thrust bearing in an auxiliary / generator engine — purpose and location", "cross_family": false } ] }, { "qid": "MUM-2026-02-1257-Q007", "text": "2 stroke engine during manoeuvring reversing failed while pilot onboard what is your actions", "family": "Fault Diagnosis & 2/E Actions", "subtopic": "Fault Diagnosis / 2E Action", "tid": "MUM-2026-02-1257", "tray": "new", "candidates": [ { "answer_id": "REV-PROC-008", "score": 0.6238135099411011, "sibling_score": 0.6238135099411011, "answer_score": null, "sibling_qid": "MUM-2024-11-1096-Q005", "sibling_text": "during pilotage me is topped as requested by pilot latter they gave revese command but engine not reversing what can be the problem and ur action", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Engine, unit, fuel pump or cam fails to reverse — causes and action", "cross_family": true }, { "answer_id": "REV-PROC-002", "score": 0.5975238084793091, "sibling_score": 0.5975238084793091, "answer_score": null, "sibling_qid": "KOC-2025-03-0931-Q005", "sibling_text": "me engine reversing", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Reversing in MAN B&W MC / MC-C / ME-C / ME-B engines", "cross_family": true }, { "answer_id": "REV-PROC-001", "score": 0.592350959777832, "sibling_score": 0.592350959777832, "answer_score": null, "sibling_qid": "MUM-2026-02-2576-Q004", "sibling_text": "reversing in your engine", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Reversing a reversible two-stroke main engine — the principle", "cross_family": true } ] }, { "qid": "MUM-2026-02-1258-Q013", "text": "Difference between Auto transformer and soft starter", "family": "Electrical - Motors & Starters", "subtopic": "", "tid": "MUM-2026-02-1258", "tray": "review", "candidates": [ { "answer_id": "SOFTSTART-P02-004", "score": 0.8274044394493103, "sibling_score": 0.8274044394493103, "answer_score": null, "sibling_qid": "MUM-2022-08-1347-Q002", "sibling_text": "working principle difference between auto transformer and soft starter not constructional difference we change waveform in soft starter not in auto transformer", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Soft starter — advantages and disadvantages", "cross_family": false }, { "answer_id": "AUTOTX-STR-004", "score": 0.8171239495277405, "sibling_score": 0.8171239495277405, "answer_score": 0.560808664560318, "sibling_qid": "MUM-2026-06-3481-Q012", "sibling_text": "difference between auto transformer and soft starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "4. Compare with star-delta, soft starter, DOL and a normal transformer", "cross_family": false }, { "answer_id": "AUTOTX-STR-001", "score": 0.7392279505729675, "sibling_score": 0.7392279505729675, "answer_score": null, "sibling_qid": "KOL-2023-02-2637-Q005", "sibling_text": "auto transformer starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "1. Draw, construct and explain the auto-transformer starter", "cross_family": false } ] }, { "qid": "MUM-2026-02-1258-Q015", "text": "5 pass 4b repeat", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2026-02-1258", "tray": "new", "candidates": [ { "answer_id": "CHAIN-TENS-A-003", "score": 0.5221032500267029, "sibling_score": 0.5221032500267029, "answer_score": null, "sibling_qid": "MUM-2026-02-2546-Q006", "sibling_text": "6 repeat", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "Chain Tightening Procedure — MC / MC-C / ME", "cross_family": false }, { "answer_id": "CBV-001", "score": 0.49609270691871643, "sibling_score": 0.49609270691871643, "answer_score": null, "sibling_qid": "MUM-2025-12-2517-Q005", "sibling_text": "counter balance valve 4b pass 6 repeat", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "What is a counter-balance valve, why fitted, and why needed even with a directional-control valve?", "cross_family": true }, { "answer_id": "BDI-469-002", "score": 0.4888680577278137, "sibling_score": 0.4888680577278137, "answer_score": null, "sibling_qid": "CHE-2025-08-0187-Q010", "sibling_text": "density correction formula some questions forgot 6 pass 4b repeat", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Density correction — VCF and WCF in bunker calculations", "cross_family": true } ] }, { "qid": "MUM-2026-02-1259-Q007", "text": "What problems you faced onboard", "family": "__META__ (non-exam)", "subtopic": "Personal / sea-service experience prompt", "tid": "MUM-2026-02-1259", "tray": "new", "candidates": [ { "answer_id": "RES-PROP-P01-001", "score": 0.5416128039360046, "sibling_score": 0.5416128039360046, "answer_score": null, "sibling_qid": "KOL-2022-05-0629-Q008", "sibling_text": "what friction resistances you faced on ship", "sibling_family": "", "via": "sibling", "answer_title": "Resistance fundamentals: Froude & Reynolds numbers, boundary layer, frictional resistance", "cross_family": false }, { "answer_id": "ANCH-C-001", "score": 0.5277231931686401, "sibling_score": 0.5277231931686401, "answer_score": null, "sibling_qid": "KOL-2021-11-3485-Q005", "sibling_text": "anchor lashing during long voyage lot of cross questions i fumbled lot in every questions that s why i failed", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Securing the anchor for sea (long voyage)", "cross_family": true }, { "answer_id": "PURIF-172-002", "score": 0.5232972502708435, "sibling_score": 0.5232972502708435, "answer_score": null, "sibling_qid": "KOC-2025-01-1897-Q002", "sibling_text": "bunkered bad fuel and purifier getting choke every 3 hrs actions you take onboard", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Gravity disc selection, new bunker & DO changeover", "cross_family": true } ] }, { "qid": "MUM-2026-02-1268-Q001", "text": "What type of ship sailed on-LNG DFDE", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-02-1268", "tray": "review", "candidates": [ { "answer_id": "LPG-LNG-009", "score": 0.6670501232147217, "sibling_score": 0.6670501232147217, "answer_score": null, "sibling_qid": "CHE-2026-04-0164-Q001", "sibling_text": "type of ship sailed lpg carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Gas-carrier fundamentals and ship-specific traps", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.5975220799446106, "sibling_score": 0.5975220799446106, "answer_score": null, "sibling_qid": "CHE-2026-02-0478-Q004", "sibling_text": "this type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "COT-01", "score": 0.5916845202445984, "sibling_score": 0.5916845202445984, "answer_score": null, "sibling_qid": "KOC-2026-04-0892-Q003", "sibling_text": "type of ship sailed tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Oil-tanker types, definitions and cargo capability", "cross_family": false } ] }, { "qid": "MUM-2026-02-1268-Q002", "text": "What type of engines- 4 stroke (No main engine)", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-02-1268", "tray": "new", "candidates": [ { "answer_id": "AE-CSB-346-001", "score": 0.5829422473907471, "sibling_score": 0.5829422473907471, "answer_score": null, "sibling_qid": "KOL-2022-05-1687-Q003", "sibling_text": "4 stroke propulsion engine thrust block arrangements", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Thrust bearing in an auxiliary / generator engine — purpose and location", "cross_family": true }, { "answer_id": "CTRL-TL-002", "score": 0.5776126980781555, "sibling_score": 0.5776126980781555, "answer_score": null, "sibling_qid": "MUM-2026-01-1253-Q001", "sibling_text": "type of main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Function of a controller, and types used on board", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.5765309929847717, "sibling_score": 0.5765309929847717, "answer_score": null, "sibling_qid": "MUM-2026-09-3913-Q001", "sibling_text": "type of main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false } ] }, { "qid": "MUM-2026-02-1271-Q001", "text": "Scrap down analysis", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "LO Test / Analysis", "tid": "MUM-2026-02-1271", "tray": "new", "candidates": [ { "answer_id": "SCAV-323-P02-006", "score": 0.48682987689971924, "sibling_score": 0.48682987689971924, "answer_score": 0.32012947797775265, "sibling_qid": "MUM-2026-06-3536-Q006", "sibling_text": "scavenge drain analysis", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Scavenge drain analysis and high scavenge-drain level", "cross_family": true }, { "answer_id": "LO-TEST-P01-003", "score": 0.4852536916732788, "sibling_score": 0.4852536916732788, "answer_score": 0.2700632631778717, "sibling_qid": "KOC-2023-01-1806-Q008", "sibling_text": "lo analysis report", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Reading a shore analysis report: metals, FTIR and red flags", "cross_family": false }, { "answer_id": "FQCC-583-A-005", "score": 0.4201366901397705, "sibling_score": 0.4201366901397705, "answer_score": null, "sibling_qid": "MUM-2025-09-2411-Q005", "sibling_text": "fo analysis report all checks", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "The bunker / fuel oil analysis report — what is checked and who says so", "cross_family": true } ] }, { "qid": "MUM-2026-02-1271-Q007", "text": "What is Flock point ?", "family": "Refrigeration & AC", "subtopic": "Refrigeration Lubricating Oil / Flock Point / Oil Charging", "tid": "MUM-2026-02-1271", "tray": "new", "candidates": [ { "answer_id": "FQCC-583-B-004", "score": 0.4046875238418579, "sibling_score": 0.4046875238418579, "answer_score": 0.29576452672481535, "sibling_qid": "MUM-2026-04-1007-Q015", "sibling_text": "floc point", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Cloud point, pour point, CFPP and floc point — and the filter choking on the new fuel", "cross_family": true }, { "answer_id": "FPC-003", "score": 0.384988009929657, "sibling_score": 0.384988009929657, "answer_score": null, "sibling_qid": "KOL-2023-03-1730-Q004", "sibling_text": "cloud point and cloud filter plugging point", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Cold filter plugging point (CFPP) and cold-flow properties", "cross_family": true }, { "answer_id": "FPC-002", "score": 0.37879759073257446, "sibling_score": 0.37879759073257446, "answer_score": null, "sibling_qid": "KOL-2026-09-4299-Q003", "sibling_text": "cloud point pour point", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Cloud point and pour point of fuel oil (and which should be high)", "cross_family": true } ] }, { "qid": "MUM-2026-02-1272-Q002", "text": "Type of ships sailed.", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-02-1272", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8040342926979065, "sibling_score": 0.8040342926979065, "answer_score": null, "sibling_qid": "MUM-2026-02-1272-Q002", "sibling_text": "type of ships sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7890129685401917, "sibling_score": 0.7890129685401917, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7683519721031189, "sibling_score": 0.7683519721031189, "answer_score": 0.5071613699197769, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "MUM-2026-02-1272-Q005", "text": "How cams operated in both engines", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Camshaft Drive / Gear Arrangement", "tid": "MUM-2026-02-1272", "tray": "new", "candidates": [ { "answer_id": "FCAM-LEAD-P04-001", "score": 0.6326118111610413, "sibling_score": 0.6326118111610413, "answer_score": null, "sibling_qid": "MUM-2025-08-1162-Q008", "sibling_text": "type of cams in m e for fuel and exhaust", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel cam lead, cam profile, negative cam and cam slip", "cross_family": false }, { "answer_id": "CAM-437-002", "score": 0.610910952091217, "sibling_score": 0.610910952091217, "answer_score": 0.4802497446537018, "sibling_qid": "MUM-2025-05-1111-Q016", "sibling_text": "main engine cam operation", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Cam operation in the main engine", "cross_family": false }, { "answer_id": "CAM-437-001", "score": 0.5925225019454956, "sibling_score": 0.5925225019454956, "answer_score": null, "sibling_qid": "MUM-2026-05-3323-Q003", "sibling_text": "how camshaft driving", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Function of the camshaft in a main (MC) engine", "cross_family": false } ] }, { "qid": "MUM-2026-02-1272-Q009", "text": "Steam leak after main steam stop valve, actions and DPT test for crack ?", "family": "Boilers - Construction & Components", "subtopic": "Boiler Pressure / Steam", "tid": "MUM-2026-02-1272", "tray": "new", "candidates": [ { "answer_id": "PHL-001", "score": 0.60643070936203, "sibling_score": 0.60643070936203, "answer_score": null, "sibling_qid": "MUM-2024-07-1082-Q012", "sibling_text": "big crack on steam pipe after boiler steam stop valve as a 2e what is your action", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "There is a hole in a line — bilge suction main, sea-water line, starting-air line or steam line: your action as 2/E, and how you find the exact location", "cross_family": true }, { "answer_id": "WBS-C-005", "score": 0.59578537940979, "sibling_score": 0.59578537940979, "answer_score": null, "sibling_qid": "MUM-2025-11-2868-Q013", "sibling_text": "cracke on steam line after main steam stop v v atsea", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Crack and leak repair — deck plate, steam line, air receiver and other shipboard cracks", "cross_family": true }, { "answer_id": "BLR-TUBE-P02-001", "score": 0.5842722058296204, "sibling_score": 0.5842722058296204, "answer_score": null, "sibling_qid": "KOL-2018-03-1356-Q008", "sibling_text": "exhaust valve boiler tube leaking action", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Identifying a boiler tube leak and finding the leaking tube", "cross_family": false } ] }, { "qid": "MUM-2026-02-1276-Q002", "text": "Difference between purifier and OWS", "family": "MARPOL - Annex I (Oil)", "subtopic": "Oil Discharge Criteria", "tid": "MUM-2026-02-1276", "tray": "new", "candidates": [ { "answer_id": "OWS-15PPM-006", "score": 0.4916842579841614, "sibling_score": 0.4916842579841614, "answer_score": null, "sibling_qid": "KOC-2025-07-0624-Q001", "sibling_text": "difference between ows and odme", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "PUR-BOWL-P03-FINAL-1-004", "score": 0.47397637367248535, "sibling_score": 0.47397637367248535, "answer_score": 0.3603845685720444, "sibling_qid": "MUM-2026-09-3969-Q003", "sibling_text": "purifier and clarifier difference", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "4. Purifier versus Clarifier — Differences, Conversion and Batch Purification", "cross_family": true }, { "answer_id": "OWS-15PPM-007", "score": 0.4287634491920471, "sibling_score": 0.4287634491920471, "answer_score": null, "sibling_qid": "MUM-2022-08-0034-Q004", "sibling_text": "certificates for ows", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "MUM-2026-02-1278-Q001", "text": "and 6 Internal: couldn’t see his name External: anil deswal Type of ship sailing Type of main engine worked: 12K98ME-C 4B", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "MUM-2026-02-1278", "tray": "new", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.6143626570701599, "sibling_score": 0.6143626570701599, "answer_score": null, "sibling_qid": "MUM-2026-05-3139-Q001", "sibling_text": "status of oral and written type of ship sailed container nomenclature of main and auxiliary engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.6135253310203552, "sibling_score": 0.6135253310203552, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q001", "sibling_text": "type of ship sailed and engines details", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ENG-NOM-004", "score": 0.600893497467041, "sibling_score": 0.600893497467041, "answer_score": null, "sibling_qid": "KOL-2025-06-1808-Q008", "sibling_text": "last ship engine type designation i told him 6s70 me c he asked what is 70", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Decode every letter and number: 6S60MC-C and 6S70ME-C", "cross_family": true } ] }, { "qid": "MUM-2026-02-1280-Q004", "text": "Centrifugal force and centripetal force", "family": "Engineering Mechanics", "subtopic": "Centrifugal / Centripetal Force", "tid": "MUM-2026-02-1280", "tray": "new", "candidates": [ { "answer_id": "DRG-B-003", "score": 0.5637422204017639, "sibling_score": 0.5637422204017639, "answer_score": 0.38345801979303357, "sibling_qid": "CHE-2026-05-0590-Q005", "sibling_text": "draw centrifugal brake", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Brakes — types, why two, and how the centrifugal brake works", "cross_family": true }, { "answer_id": "PUR-OPS-P01-002", "score": 0.5365568995475769, "sibling_score": 0.5365568995475769, "answer_score": null, "sibling_qid": "MUM-2024-07-2767-Q018", "sibling_text": "how does centrifugal force converted into vartical movement of the bowl to close", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Purifier — principle, working, and how the self-cleaning bowl closes", "cross_family": true }, { "answer_id": "PCD-P02-04", "score": 0.5177299380302429, "sibling_score": 0.5177299380302429, "answer_score": null, "sibling_qid": "MUM-2025-11-2491-Q004", "sibling_text": "double end centrifugal pp explain", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Double-entry / double-suction centrifugal pump", "cross_family": true } ] }, { "qid": "MUM-2026-02-1281-Q003", "text": "How you will know timing if it is correct or not?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Doping / Semiconductor", "tid": "MUM-2026-02-1281", "tray": "new", "candidates": [ { "answer_id": "FCL-P03-001", "score": 0.5532793998718262, "sibling_score": 0.5532793998718262, "answer_score": 0.3980566844344139, "sibling_qid": "KOL-2020-11-3361-Q003", "sibling_text": "ae timing check", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "AE / auxiliary-engine fuel pump timing check and adjustment", "cross_family": true }, { "answer_id": "FCL-P02-001", "score": 0.5451775789260864, "sibling_score": 0.5451775789260864, "answer_score": null, "sibling_qid": "MUM-2024-08-1090-Q011", "sibling_text": "how timing adjusted", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel pump / injection timing check, setting, and adjustment", "cross_family": true }, { "answer_id": "VIT-MECH-C-002", "score": 0.4886447489261627, "sibling_score": 0.4886447489261627, "answer_score": null, "sibling_qid": "KOL-2021-08-1620-Q001", "sibling_text": "vit in sulzer how timing is advanced or retard how will you check and adjust", "sibling_family": "2-Stroke - 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Give examples, say where it is found, how much time is given to rectify it, and what happens if it is not met in time.", "cross_family": true }, { "answer_id": "FCAM-LEAD-P04-001", "score": 0.35037684440612793, "sibling_score": 0.35037684440612793, "answer_score": null, "sibling_qid": "KOL-2022-07-1693-Q006", "sibling_text": "if cam is slipped by 2 then what will be the consequences and how will u get to know", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel cam lead, cam profile, negative cam and cam slip", "cross_family": true } ] }, { "qid": "MUM-2026-02-1947-Q006", "text": "What is SF factor of motor", "family": "Electrical - Motors & Starters", "subtopic": "Insulation Class", "tid": "MUM-2026-02-1947", "tray": "new", "candidates": [ { "answer_id": "IMSP-007", "score": 0.571983277797699, "sibling_score": 0.571983277797699, "answer_score": null, "sibling_qid": "MUM-2026-01-1847-Q007", "sibling_text": "what is factor of safety in motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What safeties and protections are provided in an induction motor and its starter — overload, short-circuit, thermal? What about a motor on deck, and large three-phase motors?", "cross_family": false }, { "answer_id": "BOW-THR-003", "score": 0.5311489105224609, "sibling_score": 0.5311489105224609, "answer_score": null, "sibling_qid": "CHE-2026-02-0341-Q008", "sibling_text": "rating of the motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Bow-thruster motor — type, supply voltage, starter, connection and VFD control", "cross_family": false }, { "answer_id": "IM-TSS-P03-FINAL-1-001", "score": 0.5281239748001099, "sibling_score": 0.5281239748001099, "answer_score": null, "sibling_qid": "CHE-2025-12-0321-Q002", "sibling_text": "factors affecting motor speed", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Speed control of induction / AC motors — methods and onboard use", "cross_family": false } ] }, { "qid": "MUM-2026-02-1967-Q002", "text": "How will u try out standby pumps", "family": "Pumps - Centrifugal & PD", "subtopic": "Pump Try Out / Standby", "tid": "MUM-2026-02-1967", "tray": "new", "candidates": [ { "answer_id": "STR-DEC-A-001", "score": 0.6129814982414246, "sibling_score": 0.6129814982414246, "answer_score": null, "sibling_qid": "MUM-2026-02-1979-Q003", "sibling_text": "how to test standby pump starting in engine room and cross questions", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "PPS-622-005", "score": 0.5541584491729736, "sibling_score": 0.5541584491729736, "answer_score": null, "sibling_qid": "KOC-2026-03-0854-Q003", "sibling_text": "emgy fire pump priming pump working satisfactory how to show surveyor", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "What is the priming arrangement for the emergency fire pump, and how do you demonstrate to the surveyor that the priming unit works satisfactorily?", "cross_family": false }, { "answer_id": "PCP-BF01-002", "score": 0.5449061989784241, "sibling_score": 0.5449061989784241, "answer_score": null, "sibling_qid": "MUM-2026-06-3665-Q004", "sibling_text": "progressive cavity pump what checks before starting where we use this pump", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "What safeties are provided on a progressive cavity pump?", "cross_family": false } ] }, { "qid": "MUM-2026-02-1969-Q001", "text": "What was the pf on your ship?", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2026-02-1969", "tray": "new", "candidates": [ { "answer_id": "PF-A-002", "score": 0.5532553791999817, "sibling_score": 0.5532553791999817, "answer_score": null, "sibling_qid": "MUM-2026-02-1975-Q001", "sibling_text": "what was the powerfactor on your last ship 0 8 lagg", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "Lagging, leading, unity, resistive, inductive, capacitive — and DC", "cross_family": false }, { "answer_id": "PF-A-003", "score": 0.49512508511543274, "sibling_score": 0.49512508511543274, "answer_score": 0.3622181981801987, "sibling_qid": "MUM-2025-09-1700-Q001", "sibling_text": "what was the power factor on your ship", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "What power factor is held on board, and where it is read", "cross_family": true }, { "answer_id": "SFOC-003", "score": 0.47110214829444885, "sibling_score": 0.47110214829444885, "answer_score": null, "sibling_qid": "KOL-2018-08-1403-Q002", "sibling_text": "sfoc value in ur last ship", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What is the SFOC of your main engine? With BHP, stroke and cylinder oil consumption", "cross_family": true } ] }, { "qid": "MUM-2026-02-1975-Q002", "text": "I want to make it 0.9 lag how will you do.", "family": "Electrical - Generator & Alternator", "subtopic": "Power Factor", "tid": "MUM-2026-02-1975", "tray": "new", "candidates": [ { "answer_id": "PF-A-002", "score": 0.3765566349029541, "sibling_score": 0.3765566349029541, "answer_score": null, "sibling_qid": "MUM-2026-09-3923-Q001", "sibling_text": "power factor on last ship 0 8 lag", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Lagging, leading, unity, resistive, inductive, capacitive — and DC", "cross_family": true }, { "answer_id": "SYNC-B-004", "score": 0.3538772463798523, "sibling_score": 0.3538772463798523, "answer_score": null, "sibling_qid": "KOL-2017-01-2101-Q003", "sibling_text": "synchronising of generator why incoming faster what will happen if slow", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Why the incoming machine is run slightly fast", "cross_family": false }, { "answer_id": "PTRIP-222-002", "score": 0.3493689000606537, "sibling_score": 0.3493689000606537, "answer_score": 0.2374444454908371, "sibling_qid": "KOC-2025-10-0693-Q011", "sibling_text": "how delay is achieved", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Stages, load-shedding sequence, settings, time delays and loads shed", "cross_family": true } ] }, { "qid": "MUM-2026-02-1976-Q002", "text": "Type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-02-1976", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8361091613769531, "sibling_score": 0.8361091613769531, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8013883233070374, "sibling_score": 0.8013883233070374, "answer_score": 0.5470469176769256, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8000956177711487, "sibling_score": 0.8000956177711487, "answer_score": 0.5211817562580109, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2026-02-1979-Q001", "text": "Which ship sailed and status of remaining functions", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-02-1979", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.6832610964775085, "sibling_score": 0.6832610964775085, "answer_score": null, "sibling_qid": "MUM-2026-04-1319-Q001", "sibling_text": "ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.6197236180305481, "sibling_score": 0.6197236180305481, "answer_score": null, "sibling_qid": "MUM-2026-03-0813-Q001", "sibling_text": "type of ship why only one function", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "EEXI-001", "score": 0.545407772064209, "sibling_score": 0.545407772064209, "answer_score": null, "sibling_qid": "MUM-2026-02-0730-Q005", "sibling_text": "what are existing ships", "sibling_family": "", "via": "sibling", "answer_title": "What is EEXI? Explain it in full — formula, unit, application, and what an existing ship is", "cross_family": false } ] }, { "qid": "MUM-2026-02-1982-Q002", "text": "Status of other exams n attempts", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2026-02-1982", "tray": "new", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.6134230494499207, "sibling_score": 0.6134230494499207, "answer_score": null, "sibling_qid": "MUM-2026-01-1252-Q001", "sibling_text": "status of results oral written exam", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.5194100141525269, "sibling_score": 0.5194100141525269, "answer_score": null, "sibling_qid": "CHE-2026-01-0101-Q001", "sibling_text": "types of ship done and exam status", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": true }, { "answer_id": "NDT-METH-P01-001", "score": 0.505577564239502, "sibling_score": 0.505577564239502, "answer_score": null, "sibling_qid": "MUM-2026-03-2946-Q006", "sibling_text": "the best thing you can do is figure out which exams you can appear for whether single subjects pairs or all together it depends on your will and capability for me i appeared in pairs 2 writtens and 1 oral because i knew my capability it differs for everyone many attempt all 6 together as per my knowledge few pass all 6 some pass 4 5 some pass 1 3 and some failed all", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "NDT methods, NDT vs destructive testing, and onboard use", "cross_family": false } ] }, { "qid": "MUM-2026-02-2546-Q002", "text": "What if both circulation pump fails what action", "family": "Boilers - Operations & Firing", "subtopic": "Circulating Pump", "tid": "MUM-2026-02-2546", "tray": "new", "candidates": [ { "answer_id": "BWM-D1D2-P02-001", "score": 0.5450801849365234, "sibling_score": 0.5450801849365234, "answer_score": null, "sibling_qid": "KOL-2022-07-4010-Q006", "sibling_text": "ballast water exchange need to be carried out both pump failed due to lack of spare what to do", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Regulation D-1 — ballast water exchange standard and the accepted methods", "cross_family": true }, { "answer_id": "OWS-ORB-005", "score": 0.5342467427253723, "sibling_score": 0.5342467427253723, "answer_score": null, "sibling_qid": "MUM-2026-02-2926-Q007", "sibling_text": "can we sail if both egb water circulation pump is fail", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "5. Oily bilge pump broken — can a centrifugal pump be used for the OWS?", "cross_family": true }, { "answer_id": "PAL-620-001", "score": 0.533949077129364, "sibling_score": 0.533949077129364, "answer_score": null, "sibling_qid": "MUM-2026-05-3218-Q004", "sibling_text": "stby blr water circulating pump running in reverse direction reason what to do", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "How do you check and set the alignment between a pump and its motor? Horizontal centrifugal pump — where the dial gauge goes and what values apply.", "cross_family": false } ] }, { "qid": "MUM-2026-02-2546-Q005", "text": "4B pass", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2026-02-2546", "tray": "new", "candidates": [ { "answer_id": "LL-CONV-P04-001", "score": 0.4494817852973938, "sibling_score": 0.4494817852973938, "answer_score": null, "sibling_qid": "MUM-2024-11-0222-Q003", "sibling_text": "conditions of assignment 4 b 60 and b100", "sibling_family": "", "via": "sibling", "answer_title": "Conditions of assignment of freeboard: purpose, checks and effect on freeboard", "cross_family": false }, { "answer_id": "CBV-001", "score": 0.4365362524986267, "sibling_score": 0.4365362524986267, "answer_score": null, "sibling_qid": "MUM-2025-12-2517-Q005", "sibling_text": "counter balance valve 4b pass 6 repeat", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "What is a counter-balance valve, why fitted, and why needed even with a directional-control valve?", "cross_family": true }, { "answer_id": "ETP-344-P01-007", "score": 0.39913254976272583, "sibling_score": 0.39913254976272583, "answer_score": null, "sibling_qid": "MUM-2025-06-0971-Q015", "sibling_text": "significance of sfoc 4b pass", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "SFOC — specific fuel oil consumption and its significance", "cross_family": true } ] }, { "qid": "MUM-2026-02-2549-Q002", "text": "What type of ship (oil tanker)", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-02-2549", "tray": "review", "candidates": [ { "answer_id": "COT-01", "score": 0.822871744632721, "sibling_score": 0.822871744632721, "answer_score": 0.5851310580968857, "sibling_qid": "KOC-2026-04-0892-Q003", "sibling_text": "type of ship sailed tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Oil-tanker types, definitions and cargo capability", "cross_family": false }, { "answer_id": "IBC-BCH-B-004", "score": 0.7760263085365295, "sibling_score": 0.7760263085365295, "answer_score": null, "sibling_qid": "MUM-2026-05-3156-Q001", "sibling_text": "type of ships chemical tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Certificate of Fitness and MARPOL Annex II in practice", "cross_family": false }, { "answer_id": "BCH-IBC-A-001", "score": 0.7514007091522217, "sibling_score": 0.7514007091522217, "answer_score": null, "sibling_qid": "CHE-2026-03-0128-Q001", "sibling_text": "type of chemical tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type 1, Type 2 and Type 3 chemical tankers — the ship-type classification", "cross_family": false } ] }, { "qid": "MUM-2026-02-2552-Q003", "text": "Water coming from all indicator cocks of AE during blowthrough ? Action as 2E", "family": "2-Stroke - Operations & Casualty", "subtopic": "Starting Air Explosion", "tid": "MUM-2026-02-2552", "tray": "review", "candidates": [ { "answer_id": "SAV-003", "score": 0.7760178446769714, "sibling_score": 0.7760178446769714, "answer_score": null, "sibling_qid": "MUM-2026-02-2546-Q004", "sibling_text": "ae starting time water is coming from indicator cockw while blow through what action as 2e", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Action when a unit starting air valve leaks or the line goes red hot in manoeuvring", "cross_family": false }, { "answer_id": "SEA-CHEST-006", "score": 0.6926183700561523, "sibling_score": 0.6926183700561523, "answer_score": 0.41995706260204313, "sibling_qid": "MUM-2026-01-2527-Q004", "sibling_text": "ae water coming out from all indicator cocks what action", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "2/E actions: leak, crack, fouling, stuck valve, valve-life", "cross_family": true }, { "answer_id": "CAS-ESTOP-001", "score": 0.573209285736084, "sibling_score": 0.573209285736084, "answer_score": 0.4305523127317428, "sibling_qid": "KOL-2018-08-3172-Q001", "sibling_text": "er flooding what is ur action as 2e", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Engine-room flooding / rapidly rising bilges — immediate action as 2/E", "cross_family": false } ] }, { "qid": "MUM-2026-02-2568-Q002", "text": "Hw many month Sailing experience after class 4.", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2026-02-2568", "tray": "new", "candidates": [ { "answer_id": "STCW-MAN-006", "score": 0.5551949143409729, "sibling_score": 0.5551949143409729, "answer_score": null, "sibling_qid": "NOI-2026-09-0008-Q001", "sibling_text": "training institue sea time after class 4 coc", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "What are the levels and categories of seafarer under STCW, and what are the duties of the Second Engineer at management level?", "cross_family": true }, { "answer_id": "STCW-MAN-009", "score": 0.47979098558425903, "sibling_score": 0.47979098558425903, "answer_score": null, "sibling_qid": "KOC-2025-07-0631-Q008", "sibling_text": "what courses to be done to sail on passenger ships", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What additional STCW courses must you do as Second Engineer to join a passenger ship?", "cross_family": true }, { "answer_id": "BM-SF-CF-003", "score": 0.44520366191864014, "sibling_score": 0.44520366191864014, "answer_score": null, "sibling_qid": "MUM-2026-02-0790-Q004", "sibling_text": "ship experience forces", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Forces on a ship that produce shear force and bending moment", "cross_family": true } ] }, { "qid": "MUM-2026-02-2568-Q003", "text": "Hw many functions remaining.", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2026-02-2568", "tray": "new", "candidates": [ { "answer_id": "IMO-CODES-P03-002", "score": 0.5392113327980042, "sibling_score": 0.5392113327980042, "answer_score": null, "sibling_qid": "MUM-2026-03-0815-Q003", "sibling_text": "which function", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": false }, { "answer_id": "WMAT-170-010", "score": 0.49684640765190125, "sibling_score": 0.49684640765190125, "answer_score": null, "sibling_qid": "CHE-2026-05-0597-Q012", "sibling_text": "few more questions", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Bearing types, material selection and properties: where each is used", "cross_family": true }, { "answer_id": "CHAIN-TENS-C-001", "score": 0.4956047832965851, "sibling_score": 0.4956047832965851, "answer_score": null, "sibling_qid": "KOL-2021-10-1636-Q005", "sibling_text": "chain slackness check few question forget got function 4", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main-engine chain drive — how you know it is slack, and how you check and tighten it", "cross_family": true } ] }, { "qid": "MUM-2026-02-2568-Q005", "text": "Kamat sir....Show your entire room. also show me the table you\nare sitting on...", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2026-02-2568", "tray": "new", "candidates": [ { "answer_id": "SB-PRG-B-003", "score": 0.4231158494949341, "sibling_score": 0.4231158494949341, "answer_score": 0.3252356186509132, "sibling_qid": "MUM-2026-05-3334-Q008", "sibling_text": "stuffing box how to place to work table", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Safety, working table and securing studs", "cross_family": true }, { "answer_id": "FLR-WFB-P01-001", "score": 0.41064417362213135, "sibling_score": 0.41064417362213135, "answer_score": null, "sibling_qid": "KOL-2026-03-1212-Q009", "sibling_text": "draw floor plate and explain", "sibling_family": "", "via": "sibling", "answer_title": "Floors — what they are, the types, and where they are fitted", "cross_family": false }, { "answer_id": "CO2-SYS-005", "score": 0.40702375769615173, "sibling_score": 0.40702375769615173, "answer_score": null, "sibling_qid": "CHE-2026-03-0126-Q003", "sibling_text": "co2 room when you enter what you notice 1st", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 system safeties, CO2-room requirements, alarms and ventilation", "cross_family": true } ] }, { "qid": "MUM-2026-02-2571-Q004", "text": "How to align the dowel pin in the motor and pump foundation , what is the tool he asked?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Engine Mounting Diff (ME vs AE)", "tid": "MUM-2026-02-2571", "tray": "new", "candidates": [ { "answer_id": "PAL-620-001", "score": 0.6321898698806763, "sibling_score": 0.6321898698806763, "answer_score": 0.4574806571006775, "sibling_qid": "KOL-2025-03-3757-Q004", "sibling_text": "alignment of pump and motor where exactly put the dial gauge", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "How do you check and set the alignment between a pump and its motor? Horizontal centrifugal pump — where the dial gauge goes and what values apply.", "cross_family": true }, { "answer_id": "CRKPIN-P02-001", "score": 0.5885894894599915, "sibling_score": 0.5885894894599915, "answer_score": null, "sibling_qid": "KOL-2022-04-3531-Q001", "sibling_text": "crank pin bearing survey tools used", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankpin (bottom-end) bearing — removal, overhaul and survey inspection", "cross_family": false }, { "answer_id": "FB-COUP-001", "score": 0.5657983422279358, "sibling_score": 0.5657983422279358, "answer_score": null, "sibling_qid": "CHE-2026-03-0488-Q002", "sibling_text": "what is fitted bolt where it is used how the hole is made i said with reamer tool he accepted", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What fitted bolts are, what they do, and where they sit onboard", "cross_family": false } ] }, { "qid": "MUM-2026-02-2571-Q006", "text": "How to use pin guage and how to calibrate pin guage", "family": "Gauges & Tools", "subtopic": "Pressure Gauge Calibration", "tid": "MUM-2026-02-2571", "tray": "new", "candidates": [ { "answer_id": "MICR-002", "score": 0.6211896538734436, "sibling_score": 0.6211896538734436, "answer_score": 0.4582015037536621, "sibling_qid": "KOL-2018-05-1373-Q012", "sibling_text": "screw gauge zero calibration", "sibling_family": "Gauges & Tools", "via": "sibling", "answer_title": "Zero setting, calibration, error check and trueness", "cross_family": false }, { "answer_id": "MICR-003", "score": 0.6205816268920898, "sibling_score": 0.6205816268920898, "answer_score": null, "sibling_qid": "CHE-2026-02-0474-Q002", "sibling_text": "how to calibrate the measuring tool", "sibling_family": "Gauges & Tools", "via": "sibling", "answer_title": "Cylinder liner calibration with the inside micrometer", "cross_family": false }, { "answer_id": "TPL-SENS-A-002", "score": 0.5862850546836853, "sibling_score": 0.5862850546836853, "answer_score": null, "sibling_qid": "MUM-2026-05-3165-Q005", "sibling_text": "how to calibrate pressure gauge", "sibling_family": "Gauges & Tools", "via": "sibling", "answer_title": "Pressure transmitter / transducer / switch working and calibration", "cross_family": false } ] }, { "qid": "MUM-2026-02-2571-Q008", "text": "Poker guage how to.use", "family": "Gauges & Tools", "subtopic": "Poker Gauge", "tid": "MUM-2026-02-2571", "tray": "new", "candidates": [ { "answer_id": "PROP-PN-C-002", "score": 0.6168408989906311, "sibling_score": 0.6168408989906311, "answer_score": null, "sibling_qid": "KOC-2026-05-2124-Q005", "sibling_text": "what are you measuring with poker gauge", "sibling_family": "Gauges & Tools", "via": "sibling", "answer_title": "Propeller drop — measurement and consequences", "cross_family": false }, { "answer_id": "DUS-P1-02", "score": 0.5009995102882385, "sibling_score": 0.5009995102882385, "answer_score": null, "sibling_qid": "KOL-2023-07-3625-Q004", "sibling_text": "3 special tools for drydocking poker gauge how to ensure that reading is taken at same place", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Plans, drawings and special tools kept ready for drydock — engine-department view", "cross_family": true }, { "answer_id": "RUD-DROP-001", "score": 0.46252715587615967, "sibling_score": 0.46252715587615967, "answer_score": null, "sibling_qid": "KOC-2021-05-1760-Q003", "sibling_text": "rudder drop measurement using poker gauge ans by first unit on tdc the remove rope guard drain oil by removing both top and bottom plugs remove copper gasket and put poker gauge till the matching mark on poker gauge then press the measuring pin and lock it and take readings take on both top and bottom", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": true } ] }, { "qid": "MUM-2026-02-2580-Q009", "text": "How staring air suppled to engine ( ME engine ) .", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Reversing / Starting", "tid": "MUM-2026-02-2580", "tray": "new", "candidates": [ { "answer_id": "SAT-578-001", "score": 0.6400561928749084, "sibling_score": 0.6400561928749084, "answer_score": null, "sibling_qid": "MUM-2026-05-3185-Q010", "sibling_text": "what timing is starting air injected in a me", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "At what crank angle is starting air admitted to a cylinder in a two-stroke main engine?", "cross_family": false }, { "answer_id": "AIR-DIST-002", "score": 0.6314429044723511, "sibling_score": 0.6314429044723511, "answer_score": 0.5075616151094436, "sibling_qid": "MUM-2023-05-1047-Q001", "sibling_text": "explain the starting air system of main engine", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Control-air route and starting sequence through the air distributor", "cross_family": true }, { "answer_id": "SAV-001", "score": 0.6200709939002991, "sibling_score": 0.6200709939002991, "answer_score": null, "sibling_qid": "CHE-2026-08-3886-Q001", "sibling_text": "main engine air staring valve diagram", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Construction and working of the main automatic starting air valve", "cross_family": true } ] }, { "qid": "MUM-2026-02-2580-Q014", "text": "Where to fit dail gauge", "family": "Gauges & Tools", "subtopic": "Dial Gauge", "tid": "MUM-2026-02-2580", "tray": "new", "candidates": [ { "answer_id": "CRANE-ROCK-LT-001", "score": 0.4334885776042938, "sibling_score": 0.4334885776042938, "answer_score": null, "sibling_qid": "KOL-2025-03-3757-Q002", "sibling_text": "rocking test where i put exactly dial gauge and how to take", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Crane rocking test — what it is, how it is taken, and why", "cross_family": true }, { "answer_id": "MICR-002", "score": 0.4303637146949768, "sibling_score": 0.4303637146949768, "answer_score": null, "sibling_qid": "KOL-2018-05-1373-Q012", "sibling_text": "screw gauge zero calibration", "sibling_family": "Gauges & Tools", "via": "sibling", "answer_title": "Zero setting, calibration, error check and trueness", "cross_family": false }, { "answer_id": "PAL-620-001", "score": 0.42142677307128906, "sibling_score": 0.42142677307128906, "answer_score": null, "sibling_qid": "KOL-2025-03-3757-Q004", "sibling_text": "alignment of pump and motor where exactly put the dial gauge", "sibling_family": "Pumps - 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Horizontal centrifugal pump — where the dial gauge goes and what values apply.", "cross_family": true } ] }, { "qid": "MUM-2026-02-2913-Q008", "text": "Type on your ship and rating", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-02-2913", "tray": "new", "candidates": [ { "answer_id": "LLST-AB-001", "score": 0.6201435923576355, "sibling_score": 0.6201435923576355, "answer_score": 0.3866918236017227, "sibling_qid": "CHE-2026-05-0614-Q001", "sibling_text": "start from type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "CII-RATE-P02-002", "score": 0.6068598628044128, "sibling_score": 0.6068598628044128, "answer_score": 0.3746994137763977, "sibling_qid": "MUM-2022-09-0046-Q011", "sibling_text": "if ship get rating of e what should do", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "2. 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Draw it.", "cross_family": true } ] }, { "qid": "MUM-2026-02-2918-Q004", "text": "Full form of function 3?", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2026-02-2918", "tray": "new", "candidates": [ { "answer_id": "SEEMP-123-B-001", "score": 0.6181377172470093, "sibling_score": 0.6181377172470093, "answer_score": null, "sibling_qid": "KOC-2026-03-0880-Q002", "sibling_text": "function 3 contents", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SEEMP Part III — the ship's operational carbon-intensity (CII) plan", "cross_family": true }, { "answer_id": "UNL-330-001", "score": 0.5149264931678772, "sibling_score": 0.5149264931678772, "answer_score": null, "sibling_qid": "KOL-2022-04-1673-Q005", "sibling_text": "3 function of unloder x que", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "What is the function of the main air compressor unloader?", "cross_family": true }, { "answer_id": "ISM-2E-A-004", "score": 0.512615978717804, "sibling_score": 0.512615978717804, "answer_score": null, "sibling_qid": "KOC-2025-03-0931-Q017", "sibling_text": "works done as 3e", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Shipboard jobs, machineries and maintenance areas under the Second Engineer", "cross_family": true } ] }, { "qid": "MUM-2026-02-2918-Q005", "text": "Type of ship sailed ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-02-2918", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8460181951522827, "sibling_score": 0.8460181951522827, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8450309634208679, "sibling_score": 0.8450309634208679, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7928885817527771, "sibling_score": 0.7928885817527771, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "MUM-2026-02-2918-Q006", "text": "How many months after class 4 COC ?", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2026-02-2918", "tray": "new", "candidates": [ { "answer_id": "STCW-MAN-006", "score": 0.4981226325035095, "sibling_score": 0.4981226325035095, "answer_score": null, "sibling_qid": "NOI-2026-09-0008-Q001", "sibling_text": "training institue sea time after class 4 coc", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "What are the levels and categories of seafarer under STCW, and what are the duties of the Second Engineer at management level?", "cross_family": true }, { "answer_id": "AVR-EXC-A-001", "score": 0.41675952076911926, "sibling_score": 0.41675952076911926, "answer_score": null, "sibling_qid": "MUM-2025-09-1672-Q004", "sibling_text": "4 avr", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "What is the purpose and function of the AVR?", "cross_family": true }, { "answer_id": "COC-001", "score": 0.40915152430534363, "sibling_score": 0.40915152430534363, "answer_score": null, "sibling_qid": "MUM-2026-09-3912-Q006", "sibling_text": "condition of class and duration someone discussed condition of class is valid for 12 months in gd he failed me on basis of this alone answer and i did not even cross checked gd answers", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is a Condition of Class? Give examples, say where it is found, how much time is given to rectify it, and what happens if it is not met in time.", "cross_family": true } ] }, { "qid": "MUM-2026-02-2919-Q006", "text": "how to know if your injector is not working fine", "family": "Fault Diagnosis & 2/E Actions", "subtopic": "Fault Diagnosis / 2E Action", "tid": "MUM-2026-02-2919", "tray": "new", "candidates": [ { "answer_id": "FINJ-004", "score": 0.6148896217346191, "sibling_score": 0.6148896217346191, "answer_score": null, "sibling_qid": "MUM-2026-05-2998-Q014", "sibling_text": "injector not coming out by all means at port ur actions", "sibling_family": "Fault Diagnosis & 2/E Actions", "via": "sibling", "answer_title": "Fuel injector stuck or seized — removal procedure and precautions", "cross_family": false }, { "answer_id": "FINJ-002", "score": 0.564957857131958, "sibling_score": 0.564957857131958, "answer_score": null, "sibling_qid": "MUM-2026-07-3794-Q019", "sibling_text": "what all test you will do in injector", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel injector overhaul and testing — spray pattern and opening pressure", "cross_family": true }, { "answer_id": "FINJ-005", "score": 0.5406613349914551, "sibling_score": 0.5406613349914551, "answer_score": 0.39584304988384245, "sibling_qid": "KOL-2021-08-1907-Q003", "sibling_text": "how to check injector leaking", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel injector leakage, dribbling and non-firing — indications and effects", "cross_family": true } ] }, { "qid": "MUM-2026-02-2926-Q003", "text": "Glove valve construction & how valve lid attach to spidle", "family": "General Marine Engineering", "subtopic": "Glove Valve", "tid": "MUM-2026-02-2926", "tray": "new", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.5497170686721802, "sibling_score": 0.5497170686721802, "answer_score": null, "sibling_qid": "KOL-2025-07-1814-Q004", "sibling_text": "how spindle is fitted in exhaust valve", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": true }, { "answer_id": "GV-330-001", "score": 0.5331037044525146, "sibling_score": 0.5331037044525146, "answer_score": 0.4573092103004455, "sibling_qid": "KOC-2024-09-1864-Q005", "sibling_text": "gate valve diagram", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Draw and explain the gate valve — construction, main parts, operation & onboard use", "cross_family": false }, { "answer_id": "SDNR-SDR-004", "score": 0.5302848219871521, "sibling_score": 0.5302848219871521, "answer_score": 0.44538722336292264, "sibling_qid": "KOL-2024-09-3711-Q003", "sibling_text": "spring loaded non return globe valve where use in engine room", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Spring-loaded spindleless non-return globe valve -- working principle and engine-room use", "cross_family": false } ] }, { "qid": "MUM-2026-02-2926-Q006", "text": "Lub oil mix with air what happened ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "LO System Alarms / LO System Troubleshooting / LO Pump Arrangement", "tid": "MUM-2026-02-2926", "tray": "new", "candidates": [ { "answer_id": "LO-TEST-P02-003", "score": 0.5995383858680725, "sibling_score": 0.5995383858680725, "answer_score": null, "sibling_qid": "KOC-2026-05-0003-Q012", "sibling_text": "me lub oil is contaminated with fresh water actions", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Abnormal LO condition: sump rise, colour, high temperature/pressure, lacquer, deterioration", "cross_family": false }, { "answer_id": "LO-TEST-P01-005", "score": 0.5743759870529175, "sibling_score": 0.5743759870529175, "answer_score": null, "sibling_qid": "KOL-2017-03-1846-Q004", "sibling_text": "air compressor lub oil properties", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Lube-oil properties, types and selection by duty", "cross_family": false }, { "answer_id": "LO-TEST-P02-001", "score": 0.537116289138794, "sibling_score": 0.537116289138794, "answer_score": null, "sibling_qid": "KOL-2019-10-1484-Q003", "sibling_text": "lub oil additives reasons", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Lube-oil additives; detergency, dispersancy, lubricity and friction modifiers", "cross_family": false } ] }, { "qid": "MUM-2026-02-2927-Q002", "text": "Type of Ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-02-2927", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8361091613769531, "sibling_score": 0.8361091613769531, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8013883233070374, "sibling_score": 0.8013883233070374, "answer_score": 0.5470469176769256, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8000956177711487, "sibling_score": 0.8000956177711487, "answer_score": 0.5211817562580109, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2026-02-2927-Q003", "text": "Intrinsic Protection on your ship and its components. Function of resistor in it", "family": "", "subtopic": "Hazardous-Area Equipment (Ex / IS / Zones)", "tid": "MUM-2026-02-2927", "tray": "new", "candidates": [ { "answer_id": "OC-UV-TRIP-005", "score": 0.5626246333122253, "sibling_score": 0.5626246333122253, "answer_score": null, "sibling_qid": "KOC-2026-03-0843-Q013", "sibling_text": "short circuit protections onboard", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Short-circuit and overcurrent protection arrangement", "cross_family": false }, { "answer_id": "SCR-306-B-007", "score": 0.550521731376648, "sibling_score": 0.550521731376648, "answer_score": null, "sibling_qid": "MUM-2026-05-3243-Q002", "sibling_text": "surge resistor", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "SCR snubber circuit and dv/dt protection", "cross_family": false }, { "answer_id": "NER-HV-P04-001", "score": 0.5171268582344055, "sibling_score": 0.5171268582344055, "answer_score": null, "sibling_qid": "KOL-2022-09-2604-Q001", "sibling_text": "neutral earth resistor", "sibling_family": "", "via": "sibling", "answer_title": "What an NER is, where it is used, and why it is fitted in HV systems", "cross_family": false } ] }, { "qid": "MUM-2026-03-0799-Q001", "text": "Function appearing for", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2026-03-0799", "tray": "new", "candidates": [ { "answer_id": "IMO-CODES-P03-002", "score": 0.5977039933204651, "sibling_score": 0.5977039933204651, "answer_score": null, "sibling_qid": "MUM-2026-03-0815-Q003", "sibling_text": "which function", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": false }, { "answer_id": "CHK-RM-001", "score": 0.5081137418746948, "sibling_score": 0.5081137418746948, "answer_score": null, "sibling_qid": "KOL-2025-05-3783-Q007", "sibling_text": "function of chock", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What are chocks? Function, types, where fitted and how placed — which have the biggest area, and how does the bedplate connect to the hull?", "cross_family": true }, { "answer_id": "CHK-330-001", "score": 0.5077989101409912, "sibling_score": 0.5077989101409912, "answer_score": null, "sibling_qid": "KOC-2022-05-1785-Q007", "sibling_text": "function of chock", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What is the purpose and function of main engine chocks?", "cross_family": true } ] }, { "qid": "MUM-2026-03-0799-Q012", "text": "Gopi sir asked me how was your oral", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2026-03-0799", "tray": "new", "candidates": [ { "answer_id": "FHD-616-001", "score": 0.635695219039917, "sibling_score": 0.635695219039917, "answer_score": null, "sibling_qid": "MUM-2022-10-2706-Q010", "sibling_text": "diameter of fire hose gopi sir asked how was your oral then he asked me", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "SOLAS fire-hose requirements — diameter, length, material and quantity; deck vs engine-room length", "cross_family": true }, { "answer_id": "AVR-EXC-B-001", "score": 0.5196532607078552, "sibling_score": 0.5196532607078552, "answer_score": null, "sibling_qid": "MUM-2026-02-1923-Q012", "sibling_text": "avr just explain word to word what amit sir explained and he impressed full and finish with ele oral", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Explain the AVR working principle and control-loop operation.", "cross_family": true }, { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.4885188639163971, "sibling_score": 0.4885188639163971, "answer_score": null, "sibling_qid": "MUM-2026-01-1252-Q001", "sibling_text": "status of results oral written exam", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": false } ] }, { "qid": "MUM-2026-03-0802-Q001", "text": "Type of ship - container Type of engine -wingd 9x92df icer", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "MUM-2026-03-0802", "tray": "new", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.6255179047584534, "sibling_score": 0.6255179047584534, "answer_score": null, "sibling_qid": "MUM-2026-05-3139-Q001", "sibling_text": "status of oral and written type of ship sailed container nomenclature of main and auxiliary engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "DB-TORBOX-B-003", "score": 0.6016333699226379, "sibling_score": 0.6016333699226379, "answer_score": null, "sibling_qid": "CHE-2026-04-0150-Q001", "sibling_text": "type of ship sailed container", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "What is a torsion box — definition and construction", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.5699223279953003, "sibling_score": 0.5699223279953003, "answer_score": null, "sibling_qid": "MUM-2026-07-3668-Q004", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false } ] }, { "qid": "MUM-2026-03-0802-Q004", "text": "Precautions while loading dg container", "family": "Other Conventions", "subtopic": "IMDG Code", "tid": "MUM-2026-03-0802", "tray": "new", "candidates": [ { "answer_id": "IMDG-004", "score": 0.5331752300262451, "sibling_score": 0.5331752300262451, "answer_score": null, "sibling_qid": "KOC-2025-10-0698-Q005", "sibling_text": "how to identify dg cargo", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "How do you identify IMDG cargo on board — how you know it is coming, and how you identify it with no documents", "cross_family": false }, { "answer_id": "IMDG-007", "score": 0.4974701702594757, "sibling_score": 0.4974701702594757, "answer_score": 0.34662104845047, "sibling_qid": "KOC-2025-08-0650-Q004", "sibling_text": "location of dg cargo on container ship and why where it is mentioned location", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "How is dangerous cargo stowed on a container ship? Location, where stated, near accommodation, and can every container carry it?", "cross_family": false }, { "answer_id": "CB-033-A-001", "score": 0.4676276445388794, "sibling_score": 0.4676276445388794, "answer_score": null, "sibling_qid": "KOC-2025-02-1500-Q005", "sibling_text": "when you offload your dg your vcb cannot be opened what are your actions", "sibling_family": "", "via": "sibling", "answer_title": "What are your actions if a generator / main breaker or ACB will not open, close, or operate correctly?", "cross_family": false } ] }, { "qid": "MUM-2026-03-0802-Q006", "text": "How dg container is loaded ( full process from planning from Port ) Types of regulator Types of resistor How over load relay works Zener diode", "family": "Cargo Ops - Gas Carriers", "subtopic": "Container DG", "tid": "MUM-2026-03-0802", "tray": "new", "candidates": [ { "answer_id": "EPC-P02-01", "score": 0.5667034387588501, "sibling_score": 0.5667034387588501, "answer_score": null, "sibling_qid": "KOC-2023-12-1314-Q013", "sibling_text": "zener diode characteristics where all used onboard", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a zener diode? Draw its symbol, explain its working principle, and draw and explain its characteristic curve including the zener (breakdown) voltage.", "cross_family": true }, { "answer_id": "OCR-185-005", "score": 0.5364392995834351, "sibling_score": 0.5364392995834351, "answer_score": null, "sibling_qid": "MUM-2026-03-2033-Q002", "sibling_text": "overload protection components", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Overload vs overcurrent vs short circuit vs fuse vs overpower", "cross_family": true }, { "answer_id": "EPC-P02-03", "score": 0.5340036153793335, "sibling_score": 0.5340036153793335, "answer_score": 0.48257516920566557, "sibling_qid": "KOL-2023-05-2654-Q001", "sibling_text": "zener diode how to control voltage and where excess current go answer through resistance surveyor told me resistance i forget to tell them this things i explain all this thing but answer is through resistance", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Where is a zener diode used on board and why — voltage regulator, AVR, clipper — and explain one application in detail.", "cross_family": true } ] }, { "qid": "MUM-2026-03-0805-Q002", "text": "Attempt:3", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2026-03-0805", "tray": "new", "candidates": [ { "answer_id": "ISM-2E-A-004", "score": 0.5365368723869324, "sibling_score": 0.5365368723869324, "answer_score": null, "sibling_qid": "KOC-2025-03-0931-Q017", "sibling_text": "works done as 3e", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Shipboard jobs, machineries and maintenance areas under the Second Engineer", "cross_family": true }, { "answer_id": "SEEMP-123-B-001", "score": 0.5259197950363159, "sibling_score": 0.5259197950363159, "answer_score": null, "sibling_qid": "MUM-2026-04-3030-Q003", "sibling_text": "seemp 3", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP Part III — the ship's operational carbon-intensity (CII) plan", "cross_family": true }, { "answer_id": "A6-NSEC-005", "score": 0.5259197950363159, "sibling_score": 0.5259197950363159, "answer_score": null, "sibling_qid": "MUM-2024-11-2777-Q007", "sibling_text": "seemp 3", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP — Part I, II & III", "cross_family": true } ] }, { "qid": "MUM-2026-03-0807-Q006", "text": "ISM code Deficiencies", "family": "ISM Code", "subtopic": "Major / Minor NC", "tid": "MUM-2026-03-0807", "tray": "new", "candidates": [ { "answer_id": "ISM-ELEM-002", "score": 0.5980611443519592, "sibling_score": 0.5980611443519592, "answer_score": null, "sibling_qid": "MUM-2026-03-0832-Q001", "sibling_text": "ism code in detail", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the ISM Code?", "cross_family": false }, { "answer_id": "ISMNC-002", "score": 0.40694843530654906, "sibling_score": null, "answer_score": 0.40694843530654906, "sibling_qid": "", "sibling_text": "what is a major non conformity under the ism code give the definition and name some recite the exact ism 1 1 10 definition both limbs including and includes the lack of effective and systematic implementation limb 1 serious threat to personnel ship or serious risk to the environment needing immediate corrective action", "sibling_family": "", "via": "answer_title", "answer_title": "What is a major non-conformity under the ISM Code? Give the definition and name some.", "cross_family": false }, { "answer_id": "DCG-004", "score": 0.3847514450550079, "sibling_score": null, "answer_score": 0.3847514450550079, "sibling_qid": "", "sibling_text": "what is the relationship between clear grounds nc and mnc and what action follows one chain clear grounds trigger detailed inspection findings graded nc or major nc under the ism code non conformity ism an observed situation where objective evidence shows a specified sms requirement is not fulfilled", "sibling_family": "", "via": "answer_title", "answer_title": "What is the relationship between clear grounds, NC and MNC, and what action follows?", "cross_family": false } ] }, { "qid": "MUM-2026-03-0808-Q003", "text": "Shifting of lo internally orb entry", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "MUM-2026-03-0808", "tray": "review", "candidates": [ { "answer_id": "OWS-ORB-006", "score": 0.7034279704093933, "sibling_score": 0.7034279704093933, "answer_score": null, "sibling_qid": "MUM-2026-03-0808-Q002", "sibling_text": "orb entry for lo", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "6. Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-002", "score": 0.48079514503479004, "sibling_score": 0.48079514503479004, "answer_score": null, "sibling_qid": "CHE-2024-10-0509-Q002", "sibling_text": "orb entries all in detail", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "The Oil Record Book Part I — purpose, the letter codes, and how entries are made", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-004", "score": 0.45900464057922363, "sibling_score": 0.45900464057922363, "answer_score": null, "sibling_qid": "MUM-2026-08-3831-Q008", "sibling_text": "bunker entry in orb", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Weekly ORB entries — the mandatory sludge retention record, the bunker entry, and what is voluntary", "cross_family": false } ] }, { "qid": "MUM-2026-03-0808-Q007", "text": "Type of ship sailed.", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-03-0808", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8460181951522827, "sibling_score": 0.8460181951522827, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8450309634208679, "sibling_score": 0.8450309634208679, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7928885817527771, "sibling_score": 0.7928885817527771, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "MUM-2026-03-0808-Q010", "text": "Before discharging what checks to carry out as per ISM?", "family": "MARPOL - Annex I (Oil)", "subtopic": "Oil Discharge Criteria", "tid": "MUM-2026-03-0808", "tray": "new", "candidates": [ { "answer_id": "IGAT-583-001", "score": 0.6111797094345093, "sibling_score": 0.6111797094345093, "answer_score": null, "sibling_qid": "MUM-2025-11-0555-Q002", "sibling_text": "before discharging ig alarm and cargo checks", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "State all the alarms, trips and safety cut-outs provided on a tanker inert gas (IG) system.", "cross_family": true }, { "answer_id": "ESE-P01-005", "score": 0.5371847152709961, "sibling_score": 0.5371847152709961, "answer_score": null, "sibling_qid": "KOL-2018-03-3962-Q003", "sibling_text": "after discharging u have to do tank inspection tell all the steps and checks to be made before entry", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "Cargo tank, pump-room, ballast tank or duct-keel entry preparation", "cross_family": true }, { "answer_id": "OWS-15PPM-001", "score": 0.5224978923797607, "sibling_score": 0.5224978923797607, "answer_score": null, "sibling_qid": "KOL-2019-08-0317-Q006", "sibling_text": "what all checks ur going to carry out before running ows n checks while ows running", "sibling_family": "MARPOL - 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Give examples, say where it is found, how much time is given to rectify it, and what happens if it is not met in time.", "cross_family": true } ] }, { "qid": "MUM-2026-03-0822-Q001", "text": "Type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-03-0822", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8361091017723083, "sibling_score": 0.8361091017723083, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8013882637023926, "sibling_score": 0.8013882637023926, "answer_score": 0.5470469176769256, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8000955581665039, "sibling_score": 0.8000955581665039, "answer_score": 0.5211816549301147, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2026-03-0822-Q006", "text": "MLC chapters", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2026-03-0822", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.54012531042099, "sibling_score": 0.54012531042099, "answer_score": null, "sibling_qid": "KOC-2026-05-2135-Q011", "sibling_text": "mlc titles explain title 1 explain dmlc part 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "ISM-ELEM-003", "score": 0.487431138753891, "sibling_score": 0.487431138753891, "answer_score": null, "sibling_qid": "KOC-2026-10-2218-Q007", "sibling_text": "ism all chapters", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": true }, { "answer_id": "SOLAS12-C-001", "score": 0.471628874540329, "sibling_score": 0.471628874540329, "answer_score": null, "sibling_qid": "KOC-2026-01-0788-Q005", "sibling_text": "solas chapter xii and how many chapters", "sibling_family": "", "via": "sibling", "answer_title": "Explain SOLAS Chapter XII for bulk carriers — oral-exam overview", "cross_family": false } ] }, { "qid": "MUM-2026-03-0826-Q001", "text": "Attempt number, Pre sea institute", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2026-03-0826", "tray": "new", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.5076812505722046, "sibling_score": 0.5076812505722046, "answer_score": null, "sibling_qid": "MUM-2026-03-0866-Q001", "sibling_text": "coc attempt internal sirish sir external vishwanathan iyer sir started with what function you are applying how many ships type of ships you did after class 4 pre sea from where how many written cleared what about other functions", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": true }, { "answer_id": "STCW-MAN-006", "score": 0.48123684525489807, "sibling_score": 0.48123684525489807, "answer_score": null, "sibling_qid": "NOI-2026-09-0008-Q001", "sibling_text": "training institue sea time after class 4 coc", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "What are the levels and categories of seafarer under STCW, and what are the duties of the Second Engineer at management level?", "cross_family": true }, { "answer_id": "ISM-2E-B-001", "score": 0.4263790547847748, "sibling_score": 0.4263790547847748, "answer_score": null, "sibling_qid": "KOC-2023-11-0240-Q014", "sibling_text": "11 ism survey preperation as 2nd eng", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "B1. Preparing for an ISM audit as Second Engineer", "cross_family": true } ] }, { "qid": "MUM-2026-03-0827-Q001", "text": "Type of vessel sailed", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-03-0827", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8423571586608887, "sibling_score": 0.8423571586608887, "answer_score": null, "sibling_qid": "CHE-2026-02-0481-Q001", "sibling_text": "type of vessels sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8257264494895935, "sibling_score": 0.8257264494895935, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.8044454455375671, "sibling_score": 0.8044454455375671, "answer_score": null, "sibling_qid": "CHE-2026-03-0255-Q001", "sibling_text": "type of vessel and engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "MUM-2026-03-0830-Q001", "text": "Type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-03-0830", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8361092209815979, "sibling_score": 0.8361092209815979, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8013883233070374, "sibling_score": 0.8013883233070374, "answer_score": 0.5470469176769256, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8000956177711487, "sibling_score": 0.8000956177711487, "answer_score": 0.5211817562580109, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2026-03-0832-Q007", "text": "What are the 4 types of deficiency", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2026-03-0832", "tray": "new", "candidates": [ { "answer_id": "ISMNC-010", "score": 0.5344443321228027, "sibling_score": 0.5344443321228027, "answer_score": null, "sibling_qid": "MUM-2026-03-0813-Q008", "sibling_text": "deficiency mnc nc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Differentiate between a deficiency, an observation, a non-conformity and a major non-conformity, including the deficiency codes used at inspection.", "cross_family": true }, { "answer_id": "DCG-003", "score": 0.5239893198013306, "sibling_score": 0.5239893198013306, "answer_score": null, "sibling_qid": "MUM-2026-09-3951-Q006", "sibling_text": "deficiency codes", "sibling_family": "Surveys - 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Give the definition and name some.", "cross_family": true }, { "answer_id": "MLC-WRH-B-002", "score": 0.4187701940536499, "sibling_score": 0.4187701940536499, "answer_score": null, "sibling_qid": "MUM-2022-07-0027-Q005", "sibling_text": "mlc 2006 wages rest hours", "sibling_family": "MLC", "via": "sibling", "answer_title": "Work and rest hours under MLC — the criteria, the weekly limit, the intervals", "cross_family": false } ] }, { "qid": "MUM-2026-03-0842-Q004", "text": "Regulations for rest hours?", "family": "MLC", "subtopic": "Rest Hours / MLC Articles", "tid": "MUM-2026-03-0842", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-002", "score": 0.7480254769325256, "sibling_score": 0.7480254769325256, "answer_score": 0.5222093224525451, "sibling_qid": "KOC-2023-05-0190-Q008", "sibling_text": "rest hours criteria internal", "sibling_family": "MLC", "via": "sibling", "answer_title": "Work and rest hours under MLC — the criteria, the weekly limit, the intervals", "cross_family": false }, { "answer_id": "MLC-WRH-B-003", "score": 0.6808584332466125, "sibling_score": 0.6808584332466125, "answer_score": 0.4613858342170715, "sibling_qid": "KOC-2025-01-0506-Q003", "sibling_text": "stcw convention manila amendment rest hours requirements", "sibling_family": "MLC", "via": "sibling", "answer_title": "STCW versus MLC rest hours — the Manila amendments, and is a 6-2-2 split acceptable", "cross_family": false }, { "answer_id": "STCW-MAN-012", "score": 0.4891789615154266, "sibling_score": null, "answer_score": 0.4891789615154266, "sibling_qid": "", "sibling_text": "define fitness for duty as per stcw regulation viii 1 fitness for duty mandatory detail in code section a viii 1 minimum 10 hours of rest in any 24 hour period", "sibling_family": "", "via": "answer_title", "answer_title": "Define fitness for duty as per STCW.", "cross_family": false } ] }, { "qid": "MUM-2026-03-0843-Q001", "text": "Exam status", "family": "__META__ (non-exam)", "subtopic": "", 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"MUM-2026-03-0845-Q010", "text": "MLC 2006 ?", "family": "MLC", "subtopic": "MLC / DMLC / Work-Rest", "tid": "MUM-2026-03-0845", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-007", "score": 0.576312243938446, "sibling_score": 0.576312243938446, "answer_score": null, "sibling_qid": "MUM-2026-02-0734-Q007", "sibling_text": "mlc 2006 detainable deficiency", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false }, { "answer_id": "MLC-WRH-B-002", "score": 0.47856760025024414, "sibling_score": 0.47856760025024414, "answer_score": null, "sibling_qid": "MUM-2022-07-0027-Q005", "sibling_text": "mlc 2006 wages rest hours", "sibling_family": "MLC", "via": "sibling", "answer_title": "Work and rest hours under MLC — the criteria, the weekly limit, the intervals", "cross_family": false }, { "answer_id": "DUS-P1-03", "score": 0.4657885432243347, "sibling_score": 0.4657885432243347, "answer_score": null, "sibling_qid": 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Fuel Injection & Pumps", "via": "sibling", "answer_title": "Arrangement, location, types and main components", "cross_family": false }, { "answer_id": "CYL-LINER-P01-002", "score": 0.4508693814277649, "sibling_score": 0.4508693814277649, "answer_score": null, "sibling_qid": "MUM-2022-10-2712-Q004", "sibling_text": "liner calibration how you calibrate at exactly at middle positions", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Getting true readings: tool, position and temperature", "cross_family": false }, { "answer_id": "AUC-P03-04", "score": 0.44998884201049805, "sibling_score": 0.44998884201049805, "answer_score": 0.3499615505337715, "sibling_qid": "MUM-2023-05-2170-Q003", "sibling_text": "separt there is positioner having setting 33 and 90 degree what is that", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Control-valve positioner — function and calibration of a pneumatic actuator/positioner", "cross_family": false } ] }, { "qid": "MUM-2026-03-1005-Q003", "text": "Specification of ME ?", "family": "2-Stroke - 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ME-GI / ME-GA / ME-G and recent dual-fuel engine advancements", "cross_family": true } ] }, { "qid": "MUM-2026-03-1287-Q009", "text": "And many more cross questions Got 4b Repeat 6", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2026-03-1287", "tray": "new", "candidates": [ { "answer_id": "CHAIN-TENS-A-003", "score": 0.5822522044181824, "sibling_score": 0.5822522044181824, "answer_score": null, "sibling_qid": "MUM-2026-02-2546-Q006", "sibling_text": "6 repeat", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "Chain Tightening Procedure — MC / MC-C / ME", "cross_family": false }, { "answer_id": "ANCHR-B-003", "score": 0.5390839576721191, "sibling_score": 0.5390839576721191, "answer_score": null, "sibling_qid": "KOC-2025-10-1056-Q011", "sibling_text": "what is anchor ranging some more ques can t remember 4b passed 6 repeat", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Ranging the cable — what it is, why, and the parts", "cross_family": true }, { "answer_id": "FIRE-P01-01", "score": 0.5164451599121094, "sibling_score": 0.5164451599121094, "answer_score": null, "sibling_qid": "MUM-2023-11-0145-Q005", "sibling_text": "hypermist many cross questions", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist / water-mist system — draw and explain the machinery-space arrangement and normal working", "cross_family": true } ] }, { "qid": "MUM-2026-03-1289-Q004", "text": "Explain reliq plant working cycle in detail, how SW at 30 degrees can liquify cargo whose boiling point is -43?", "family": "Cargo Ops - Gas Carriers", "subtopic": "Reliquefaction Plant", "tid": "MUM-2026-03-1289", "tray": "new", "candidates": [ { "answer_id": "IGC-GAS-014", "score": 0.5750437378883362, "sibling_score": 0.5750437378883362, "answer_score": 0.5043092936277389, "sibling_qid": "KOL-2021-03-0480-Q003", "sibling_text": "about motor room air lock how your cargo vapours are liquified back complete explanation of cargo plant cross question about top spray and puddle heating mlc contents everything apart from rest hours", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Cargo reliquefaction plant and condenser-leak detection", "cross_family": false }, { "answer_id": "IGC-IGF-012", "score": 0.514968752861023, "sibling_score": 0.514968752861023, "answer_score": 0.4489150047302246, "sibling_qid": "KOL-2023-07-4025-Q004", "sibling_text": "how is boil off gas handled onboard working of reliquefaction plant", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Boil-off gas handling — reliquefaction, GCU and BOG compressor", "cross_family": true }, { "answer_id": "BLEVE-BOG-004", "score": 0.5121892690658569, "sibling_score": 0.5121892690658569, "answer_score": 0.42773939967155455, "sibling_qid": "KOC-2021-07-0006-Q001", "sibling_text": "lng carrier boil off how much tank pressure control how done", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "How are LNG boil-off, tank pressure and cargo temperature controlled?", "cross_family": false } ] }, { "qid": "MUM-2026-03-1294-Q002", "text": "Whatever ship you sail after class four.", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-03-1294", "tray": "new", "candidates": [ { "answer_id": "STCW-MAN-006", "score": 0.6185252070426941, "sibling_score": 0.6185252070426941, "answer_score": null, "sibling_qid": "NOI-2026-09-0008-Q001", "sibling_text": "training institue sea time after class 4 coc", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "What are the levels and categories of seafarer under STCW, and what are the duties of the Second Engineer at management level?", "cross_family": false }, { "answer_id": "CN-576-001", "score": 0.6030606031417847, "sibling_score": 0.6030606031417847, "answer_score": null, "sibling_qid": "MUM-2026-04-0919-Q005", "sibling_text": "class notation of your ship", "sibling_family": "Surveys - 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Main-engine trips and shutdowns linked with interlocks", "cross_family": true }, { "answer_id": "IGC-GAS-011", "score": 0.5752378702163696, "sibling_score": 0.5752378702163696, "answer_score": null, "sibling_qid": "MUM-2023-07-2738-Q002", "sibling_text": "safety and all in fgss and hazardous area of your ship 2 type of engine room 3 omd alarm what will be your action or yaad nahi aa raha hai mep", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Gas systems and hazardous-area safety (FGSS, piping, gas detection)", "cross_family": false } ] }, { "qid": "MUM-2026-03-1296-Q010", "text": "HFO service tank empty , action", "family": "Fault Diagnosis & 2/E Actions", "subtopic": "Fault Diagnosis / 2E Action", "tid": "MUM-2026-03-1296", "tray": "new", "candidates": [ { "answer_id": "FQCC-583-B-015", "score": 0.5875023603439331, "sibling_score": 0.5875023603439331, "answer_score": 0.4600800722837448, "sibling_qid": "KOL-2017-06-1300-Q004", "sibling_text": "hfo service tank drain v v chocked wht action to take", "sibling_family": "2-Stroke - 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Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Explain the latest Annex VI amendment or MEPC development, and state its date and status.", "cross_family": true }, { "answer_id": "PIST-CSI-A-003", "score": 0.33710405230522156, "sibling_score": 0.33710405230522156, "answer_score": null, "sibling_qid": "KOL-2025-08-2010-Q001", "sibling_text": "date 25 08 2025 ext sarkar int srinivasan 1 piston parts and material", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston materials: crown, skirt, rod, rings and coatings", "cross_family": true } ] }, { "qid": "MUM-2026-03-1303-Q017", "text": "Fu 4b", "family": "General Marine Engineering", "subtopic": "GA / GI Drawing", "tid": "MUM-2026-03-1303", "tray": "new", "candidates": [ { "answer_id": "LL-CONV-P04-001", "score": 0.4792654514312744, "sibling_score": 0.4792654514312744, "answer_score": null, "sibling_qid": "MUM-2024-11-0222-Q003", "sibling_text": "conditions of assignment 4 b 60 and b100", "sibling_family": "", "via": "sibling", "answer_title": "Conditions of assignment of freeboard: purpose, checks and effect on freeboard", "cross_family": false }, { "answer_id": "MIB-B-001", "score": 0.47701650857925415, "sibling_score": 0.47701650857925415, "answer_score": null, "sibling_qid": "KOL-2023-08-2673-Q005", "sibling_text": "4 what is fet", "sibling_family": "Electrical - 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Components (Other)", "via": "sibling", "answer_title": "L3 · T044-PART_02-G003High", "cross_family": true }, { "answer_id": "METAL-LOCK-003", "score": 0.37911900877952576, "sibling_score": 0.37911900877952576, "answer_score": null, "sibling_qid": "KOC-2024-08-1385-Q004", "sibling_text": "bearing seats loose on the cover how to repair", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Cold repair of cracked cast-iron parts: liner, pump/valve cage, loose bearing seat", "cross_family": false } ] }, { "qid": "MUM-2026-03-1305-Q010", "text": "How you will do honning and if you got 2 unit is more then allowable limit tell me your action", "family": "2-Stroke - Liner & Piston Overhaul", "subtopic": "Liner Honing / Wear Limits", "tid": "MUM-2026-03-1305", "tray": "new", "candidates": [ { "answer_id": "SEW-DISCH-005", "score": 0.42887192964553833, "sibling_score": 0.42887192964553833, "answer_score": null, "sibling_qid": "CHE-2026-05-0566-Q006", "sibling_text": "what is bod if value above the limit what will happen", "sibling_family": "MARPOL - 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Lubrication & Bearings", "via": "sibling", "answer_title": "Main engine low lubricating-oil pressure — alarm, slowdown or trip: your actions as 2/E, and is the alarm true or false?", "cross_family": true }, { "answer_id": "REEF-COMP-002", "score": 0.5330438613891602, "sibling_score": 0.5330438613891602, "answer_score": null, "sibling_qid": "KOC-2025-11-1645-Q004", "sibling_text": "refer lo low pressure trip working", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Lube-oil low-pressure / differential-pressure trip — how it works, tests and sets", "cross_family": true }, { "answer_id": "CAS-ESTOP-001", "score": 0.5280444622039795, "sibling_score": 0.5280444622039795, "answer_score": null, "sibling_qid": "MUM-2026-03-2639-Q003", "sibling_text": "engine room is flooded below pump level you action as 2 e", "sibling_family": "Bilge & Ballast Systems", "via": "sibling", "answer_title": "Engine-room flooding / rapidly rising bilges — immediate action as 2/E", "cross_family": true } ] }, { "qid": "MUM-2026-03-2616-Q003", "text": "Main engine and Auxiliary engine load decreasing after sometime like - 2000kw then 1800kw then 1500kw what is the reason?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE 4-Stroke Theory", "tid": "MUM-2026-03-2616", "tray": "new", "candidates": [ { "answer_id": "AEDEC-291-009", "score": 0.6212382912635803, "sibling_score": 0.6212382912635803, "answer_score": 0.458125102519989, "sibling_qid": "KOL-2025-06-3786-Q005", "sibling_text": "load carrying capacity of your aux eng is lower what ovrhaul you will plan as 2e", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "9. Planning overhaul when load-carrying capacity is low", "cross_family": false }, { "answer_id": "ENG-DERATE-002", "score": 0.580208957195282, "sibling_score": 0.580208957195282, "answer_score": null, "sibling_qid": "MUM-2026-06-3451-Q012", "sibling_text": "derating of the main engine", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "How is a main engine temporarily derated and later restored, without propeller changes?", "cross_family": true }, { "answer_id": "AE-HOT-BLOW-004", "score": 0.5795416235923767, "sibling_score": 0.5795416235923767, "answer_score": 0.47677804827690123, "sibling_qid": "MUM-2025-12-2879-Q006", "sibling_text": "rating of the ae running at low load but exhaust temp are high reason", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Auxiliary engine at low load but exhaust temperatures high — reasons", "cross_family": false } ] }, { "qid": "MUM-2026-03-2630-Q002", "text": "type of main engine on ship", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-03-2630", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.7893099784851074, "sibling_score": 0.7893099784851074, "answer_score": null, "sibling_qid": "MUM-2026-09-3882-Q001", "sibling_text": "introduction types of ship main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.7818619012832642, "sibling_score": 0.7818619012832642, "answer_score": null, "sibling_qid": "MUM-2026-07-3668-Q004", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "CTRL-TL-002", "score": 0.7381702065467834, "sibling_score": 0.7381702065467834, "answer_score": null, "sibling_qid": "MUM-2026-01-1253-Q001", "sibling_text": "type of main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Function of a controller, and types used on board", "cross_family": false } ] }, { "qid": "MUM-2026-03-2630-Q003", "text": "type of ship sailed on.", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-03-2630", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8373956680297852, "sibling_score": 0.8373956680297852, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8365116119384766, "sibling_score": 0.8365116119384766, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.5173035323619842, "sibling_score": null, "answer_score": 0.5173035323619842, "sibling_qid": "", "sibling_text": "type a and type b ships how form and cargo set the freeboard", "sibling_family": "", "via": "answer_title", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "MUM-2026-03-2630-Q008", "text": "what are friction modifiers", "family": "Lube Oil System", "subtopic": "Lube oil Properties", "tid": "MUM-2026-03-2630", "tray": "new", "candidates": [ { "answer_id": "RES-PROP-P01-001", "score": 0.5437570214271545, "sibling_score": 0.5437570214271545, "answer_score": 0.3918239802122116, "sibling_qid": "KOL-2025-12-1140-Q004", "sibling_text": "frictional resistance and resistance depends on what", "sibling_family": "", "via": "sibling", "answer_title": "Resistance fundamentals: Froude & Reynolds numbers, boundary layer, frictional resistance", "cross_family": false }, { "answer_id": "LO-TEST-P02-001", "score": 0.48524942994117737, "sibling_score": 0.48524942994117737, "answer_score": null, "sibling_qid": "MUM-2025-01-1099-Q003", "sibling_text": "what is friction modifier in lube oil additives and its properties", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Lube-oil additives; detergency, dispersancy, lubricity and friction modifiers", "cross_family": true }, { "answer_id": "RES-PROP-P01-002", "score": 0.4692707061767578, "sibling_score": 0.4692707061767578, "answer_score": 0.3651796832680702, "sibling_qid": "MUM-2023-01-0080-Q008", "sibling_text": "ship resistance frictional", "sibling_family": "", "via": "sibling", "answer_title": "Resistance types and methods of reducing them", "cross_family": false } ] }, { "qid": "MUM-2026-03-2634-Q003", "text": "Main engine high viscosity alarm. 3/e adjusted temp, still not going. What to do and?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-03-2634", "tray": "new", "candidates": [ { "answer_id": "OMD-001", "score": 0.6346615552902222, "sibling_score": 0.6346615552902222, "answer_score": null, "sibling_qid": "KOC-2022-07-0968-Q011", "sibling_text": "your actions on omd activation reset and check inform chief engineer slow down engine can t stop manoeuvring feel the temp of crankcase door by hand", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "The OMD alarm sounds on your watch. What are your actions, the checks and crankcase inspection that follow, and what are the alarm levels?", "cross_family": true }, { "answer_id": "FHV-001", "score": 0.6277018785476685, "sibling_score": 0.6277018785476685, "answer_score": null, "sibling_qid": "KOL-2026-07-4277-Q006", "sibling_text": "viscosity maintained in main engine", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "01. Viscotherm / viscometer / viscosity controller", "cross_family": true }, { "answer_id": "SCAV-323-P01-006", "score": 0.6124938130378723, "sibling_score": 0.6124938130378723, "answer_score": null, "sibling_qid": "KOL-2025-08-3853-Q003", "sibling_text": "in your watch main engine unit number 3 high scavenge temperature aaram came what is your immidiate action and if alarm is genuine what is your action", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Identifying and confirming a scavenge fire on a running engine", "cross_family": true } ] }, { "qid": "MUM-2026-03-2636-Q005", "text": "What is pin guage", "family": "Workshop & Measurement", "subtopic": "Pin Gauge", "tid": "MUM-2026-03-2636", "tray": "new", "candidates": [ { "answer_id": "PROP-PN-C-002", "score": 0.4514216184616089, "sibling_score": 0.4514216184616089, "answer_score": null, "sibling_qid": "KOC-2026-05-2124-Q005", "sibling_text": "what are you measuring with poker gauge", "sibling_family": "Gauges & Tools", "via": "sibling", "answer_title": "Propeller drop — measurement and consequences", "cross_family": true }, { "answer_id": "CRK-DEFL-004", "score": 0.4478001296520233, "sibling_score": 0.4478001296520233, "answer_score": null, "sibling_qid": "KOL-2026-03-3928-Q002", "sibling_text": "crankshaft deflection what does the reading indicate how to calculate postion of dial gauge inside answered nearest to pin", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Interpreting the readings and acting on abnormal values", "cross_family": true }, { "answer_id": "RUD-DROP-001", "score": 0.4444162845611572, "sibling_score": 0.4444162845611572, "answer_score": null, "sibling_qid": "MUM-2026-06-3469-Q003", "sibling_text": "pintle clearance checking measurement", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": true } ] }, { "qid": "MUM-2026-03-2636-Q006", "text": "What is dowel pin", "family": "Workshop & Welding", "subtopic": "Dowel Pin", "tid": "MUM-2026-03-2636", "tray": "new", "candidates": [ { "answer_id": "XHEAD-303-003", "score": 0.45205068588256836, "sibling_score": 0.45205068588256836, "answer_score": 0.3136155381798744, "sibling_qid": "KOL-2018-08-0209-Q006", "sibling_text": "crosshead pin dia why bigger", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead pin and bearing design, ovality and diameter checks, modern shell design", "cross_family": true }, { "answer_id": "BBR-005", "score": 0.42796003818511963, "sibling_score": 0.42796003818511963, "answer_score": 0.3148580715060234, "sibling_qid": "KOC-2024-11-1016-Q004", "sibling_text": "pinching screws", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "What are pinching (jacking) screws and how are they used in workshop removal/holding work?", "cross_family": false }, { "answer_id": "LATHE-TD-003", "score": 0.41716814041137695, "sibling_score": 0.41716814041137695, "answer_score": null, "sibling_qid": "KOL-2021-11-3489-Q003", "sibling_text": "small stud how to thread made", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Thread cutting — lathe, taps & dies, TPI and tapping-drill size", "cross_family": false } ] }, { "qid": "MUM-2026-03-2636-Q008", "text": "Where we use left hand thread in aux engine", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE vs ME Differences", "tid": "MUM-2026-03-2636", "tray": "new", "candidates": [ { "answer_id": "AEDEC-291-005", "score": 0.47109878063201904, "sibling_score": 0.47109878063201904, "answer_score": null, "sibling_qid": "KOC-2025-08-1940-Q011", "sibling_text": "explain running in procedure of aux engine", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "5. Running-in, gradual loading, confirming run-in", "cross_family": false }, { "answer_id": "AE-CSB-346-001", "score": 0.43672627210617065, "sibling_score": 0.43672627210617065, "answer_score": null, "sibling_qid": "KOL-2017-08-1321-Q006", "sibling_text": "how thrust is taken in aux engine", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Thrust bearing in an auxiliary / generator engine — purpose and location", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.4304667115211487, "sibling_score": 0.4304667115211487, "answer_score": 0.2831208825111389, "sibling_qid": "MUM-2026-03-1294-Q005", "sibling_text": "so what main engine auxiliary engine you had", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false } ] }, { "qid": "MUM-2026-03-2636-Q010", "text": "Int asked some questions from this. He told me need to study more and read manual.", "family": "General Marine Engineering", "subtopic": "GA / GI Drawing", "tid": "MUM-2026-03-2636", "tray": "new", "candidates": [ { "answer_id": "PA-MAN-001", "score": 0.5550128221511841, "sibling_score": 0.5550128221511841, "answer_score": null, "sibling_qid": "CHE-2025-12-0098-Q004", "sibling_text": "what s p and a manual", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What is the P&A Manual (Procedures and Arrangements Manual)?", "cross_family": true }, { "answer_id": "CHEM-PA-003", "score": 0.5524600744247437, "sibling_score": 0.5524600744247437, "answer_score": null, "sibling_qid": "KOC-2023-10-0221-Q007", "sibling_text": "p a manual which annex 8 how instructions in p a manual followed during discharge of cat x y z paul sir no questions john sir kept asking for more and more when i was answering", "sibling_family": "MARPOL - Annex II (NLS)", "via": "sibling", "answer_title": "The Procedures & Arrangements (P&A) Manual", "cross_family": true }, { "answer_id": "AVRD-618-003", "score": 0.32924746870994565, "sibling_score": null, "answer_score": 0.32924746870994565, "sibling_qid": "", "sibling_text": "how do you adjust the avr droop and what is the setting commission droop only under the fitted maker s manual and approved ship procedure by authorised personnel confirm the droop ct specified phase polarity rating and secondary connections first", "sibling_family": "", "via": "answer_title", "answer_title": "How do you adjust the AVR droop, and what is the setting?", "cross_family": false } ] }, { "qid": "MUM-2026-03-2638-Q014S4", "text": "Type of ship and main engine ?", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "MUM-2026-03-2638", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P01-001", "score": 0.8304314017295837, "sibling_score": 0.8304314017295837, "answer_score": null, "sibling_qid": "MUM-2026-07-3668-Q004", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.794471800327301, "sibling_score": 0.794471800327301, "answer_score": null, "sibling_qid": "MUM-2025-08-2357-Q001", "sibling_text": "type of ship type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "AC-VE-001", "score": 0.7328972220420837, "sibling_score": 0.7328972220420837, "answer_score": null, "sibling_qid": "MUM-2026-01-2904-Q001", "sibling_text": "what type of ship engine power and nomenclature", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Volumetric efficiency: define it, and if it drops how do you improve it (with bumping clearance)?", "cross_family": false } ] }, { "qid": "MUM-2026-03-2642-Q001", "text": "■ ■type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-03-2642", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8362626433372498, "sibling_score": 0.8362626433372498, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8015266060829163, "sibling_score": 0.8015266060829163, "answer_score": 0.5469691485166549, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8002626895904541, "sibling_score": 0.8002626895904541, "answer_score": 0.5215309828519821, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2026-03-2642-Q003", "text": "■ ■purging routine", "family": "Tanker Operations & IG Systems", "subtopic": "Purging Routine", "tid": "MUM-2026-03-2642", "tray": "new", "candidates": [ { "answer_id": "PURIF-172-006", "score": 0.4311423897743225, "sibling_score": 0.4311423897743225, "answer_score": null, "sibling_qid": "MUM-2025-07-2330-Q005", "sibling_text": "purifier operation", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Operation, types, throughput & 24V control loss", "cross_family": true }, { "answer_id": "AEFP-471-008", "score": 0.4220275282859802, "sibling_score": 0.4220275282859802, "answer_score": null, "sibling_qid": "KOL-2026-02-3916-Q004", "sibling_text": "how to purge ae hp pipe", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "How do you purge the AE fuel-pump-to-injector HP pipe after an injector routine or overhaul?", "cross_family": true }, { "answer_id": "AIR-REF-004", "score": 0.41253381967544556, "sibling_score": 0.41253381967544556, "answer_score": null, "sibling_qid": "KOL-2019-08-1472-Q007", "sibling_text": "air purging in refer", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "4. Detecting and purging air from a refrigeration system", "cross_family": true } ] }, { "qid": "MUM-2026-03-2642-Q004", "text": "■ ■cofferdam purging and many more cross", "family": "Tanker Operations & IG Systems", "subtopic": "Cofferdam Purging", "tid": "MUM-2026-03-2642", "tray": "new", "candidates": [ { "answer_id": "CO2-SYS-002", "score": 0.49782225489616394, "sibling_score": 0.49782225489616394, "answer_score": null, "sibling_qid": "KOL-2020-10-0432-Q005", "sibling_text": "total flooding system and maintenance and cross question", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 maintenance, inspection, testing and survey routines", "cross_family": true }, { "answer_id": "CO2-SYS-001", "score": 0.4863482713699341, "sibling_score": 0.4863482713699341, "answer_score": null, "sibling_qid": "KOL-2021-07-0517-Q005", "sibling_text": "co2 total flooding and cross", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 release procedure, shutdowns, re-entry and casualty-use decisions", "cross_family": true }, { "answer_id": "DDHSC-004", "score": 0.46056216955184937, "sibling_score": 0.46056216955184937, "answer_score": null, "sibling_qid": "KOL-2019-11-3287-Q002", "sibling_text": "checks when flooding after dd", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "What checks are carried out after docking, and what are the first checks once the ship is out of dock?", "cross_family": true } ] }, { "qid": "MUM-2026-03-2642-Q011", "text": "status of exam", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2026-03-2642", "tray": "review", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.7426236271858215, "sibling_score": 0.7426236271858215, "answer_score": null, "sibling_qid": "MUM-2026-01-1252-Q001", "sibling_text": "status of results oral written exam", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.6088306903839111, "sibling_score": 0.6088306903839111, "answer_score": null, "sibling_qid": "CHE-2026-01-0101-Q001", "sibling_text": "types of ship done and exam status", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": true }, { "answer_id": "DUS-P1-02", "score": 0.5613032579421997, "sibling_score": 0.5613032579421997, "answer_score": null, "sibling_qid": "KOL-2025-08-3851-Q006", "sibling_text": "drydock plans rudder checks cross questions what about other written oral exams status told waiting for naval written result to come all other paper cleared", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Plans, drawings and special tools kept ready for drydock — engine-department view", "cross_family": true } ] }, { "qid": "MUM-2026-03-2642-Q021", "text": "what is multistart thread", "family": "Workshop & Measurement", "subtopic": "Threads / Multi-start Thread", "tid": "MUM-2026-03-2642", "tray": "new", "candidates": [ { "answer_id": "PTRIP-BO-003", "score": 0.41713201999664307, "sibling_score": 0.41713201999664307, "answer_score": 0.2727442219853401, "sibling_qid": "MUM-2026-05-3296-Q004", "sibling_text": "sequential start", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Sequential starting after a blackout — what starts first, and why?", "cross_family": true }, { "answer_id": "LATHE-TD-003", "score": 0.4109780788421631, "sibling_score": 0.4109780788421631, "answer_score": null, "sibling_qid": "KOC-2026-04-0892-Q014", "sibling_text": "different types of threads", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Thread cutting — lathe, taps & dies, TPI and tapping-drill size", "cross_family": true }, { "answer_id": "SYNC-C-001", "score": 0.39879634976387024, "sibling_score": 0.39879634976387024, "answer_score": null, "sibling_qid": "MUM-2024-04-0168-Q021", "sibling_text": "two generators running in parallel", "sibling_family": "Electrical - 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What to do and?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-03-2645", "tray": "new", "candidates": [ { "answer_id": "OMD-001", "score": 0.6348224878311157, "sibling_score": 0.6348224878311157, "answer_score": null, "sibling_qid": "KOC-2022-07-0968-Q011", "sibling_text": "your actions on omd activation reset and check inform chief engineer slow down engine can t stop manoeuvring feel the temp of crankcase door by hand", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "The OMD alarm sounds on your watch. 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Viscotherm / viscometer / viscosity controller", "cross_family": true }, { "answer_id": "SCAV-323-P01-006", "score": 0.6130364537239075, "sibling_score": 0.6130364537239075, "answer_score": null, "sibling_qid": "KOL-2025-08-3853-Q003", "sibling_text": "in your watch main engine unit number 3 high scavenge temperature aaram came what is your immidiate action and if alarm is genuine what is your action", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Identifying and confirming a scavenge fire on a running engine", "cross_family": true } ] }, { "qid": "MUM-2026-03-2647-Q003", "text": "Why to run in low and high mode", "family": "Auxiliary Engines", "subtopic": "Low / High Mode Operation", "tid": "MUM-2026-03-2647", "tray": "new", "candidates": [ { "answer_id": "FOAM-SYS-P04-004", "score": 0.4149298071861267, "sibling_score": 0.4149298071861267, "answer_score": null, "sibling_qid": "KOL-2025-07-0991-Q013", "sibling_text": "tell me 3 very good main reasons that low is suitable for deck compared to high", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "3. 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Two paralleled generators sharing unequal load — cause and correction", "cross_family": true }, { "answer_id": "EGTP-P02-008", "score": 0.3773399293422699, "sibling_score": 0.3773399293422699, "answer_score": null, "sibling_qid": "MUM-2023-03-2727-Q004", "sibling_text": "why not run at more rpm", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "General Engine Theory — Operating Envelope", "cross_family": true } ] }, { "qid": "MUM-2026-03-2647-Q004", "text": "Tell me the reason to keep it in positive pressure", "family": "Tanker Operations & IG Systems", "subtopic": "Positive Pressure", "tid": "MUM-2026-03-2647", "tray": "new", "candidates": [ { "answer_id": "IGC-GAS-013", "score": 0.5222345590591431, "sibling_score": 0.5222345590591431, "answer_score": null, "sibling_qid": "KOL-2023-10-0776-Q009", "sibling_text": "how pressure is maintained in both room and value of pressures", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Cargo machinery air-lock, gas-tight separation and over-pressure protection", "cross_family": true }, { "answer_id": "BLEVE-BOG-002", "score": 0.4752233624458313, "sibling_score": 0.4752233624458313, "answer_score": null, "sibling_qid": "KOL-2023-10-0776-Q012", "sibling_text": "where pressure is released and is it allowed to release in air wants to listen protection from bleve", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "How is BLEVE risk detected, prevented or protected against?", "cross_family": true }, { "answer_id": "MARVS-TANK-002", "score": 0.4752233326435089, "sibling_score": 0.4752233326435089, "answer_score": null, "sibling_qid": "MUM-2025-06-0337-Q011", "sibling_text": "where pressure is released and is it allowed to release in air wants to listen protection from bleve", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Where is the pressure released, and is it allowed to release into the air? 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"answer_title": "Throttling process and superheat control across the TEV", "cross_family": true } ] }, { "qid": "MUM-2026-03-2658-Q001", "text": "Type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-03-2658", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8362626433372498, "sibling_score": 0.8362626433372498, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8015266060829163, "sibling_score": 0.8015266060829163, "answer_score": 0.5469690978527069, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", 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"score": 0.6346538066864014, "sibling_score": 0.6346538066864014, "answer_score": null, "sibling_qid": "KOL-2016-08-2998-Q001", "sibling_text": "crankshaft deflection nd where to put the dial gauge if marks is not visible", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Taking the readings: gauge, positions and precautions", "cross_family": true }, { "answer_id": "CRK-DEFL-004", "score": 0.6242180466651917, "sibling_score": 0.6242180466651917, "answer_score": null, "sibling_qid": "KOL-2026-03-3928-Q002", "sibling_text": "crankshaft deflection what does the reading indicate how to calculate postion of dial gauge inside answered nearest to pin", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Interpreting the readings and acting on abnormal values", "cross_family": true }, { "answer_id": "CSD-BF036-002", "score": 0.6223152875900269, "sibling_score": 0.6223152875900269, "answer_score": null, "sibling_qid": 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"answer_score": 0.5469690978527069, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8002626895904541, "sibling_score": 0.8002626895904541, "answer_score": 0.5215309828519821, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2026-03-2931-Q008", "text": "BULBOUS BOW ,WHY AND FUNCTION", "family": "", "subtopic": "Bulbous Bow", "tid": "MUM-2026-03-2931", "tray": "new", "candidates": [ { "answer_id": "PPS-230-006", "score": 0.48787450790405273, "sibling_score": 0.48787450790405273, "answer_score": null, "sibling_qid": "MUM-2026-02-0782-Q011", "sibling_text": "bulbous bow how it is connected to ship shape of bow", "sibling_family": "", "via": "sibling", "answer_title": "Fore-end / fore-peak structure: draw and describe", "cross_family": false }, { "answer_id": "FWFB-P02-005", "score": 0.39359927028417585, "sibling_score": null, "answer_score": 0.39359927028417585, "sibling_qid": "", "sibling_text": "other members breast hook bulb angle cross tie margin coffin shoe plates breast hook horizontal triangular plate bracket at the bow and aft tying the two sides across the centreline at the stem helps resist panting forward bulb angle bulb flat stiffener a flat bar with a rounded bulb on one edge for added stiffness without a separate flange shell deck and bulkhead stiffening", "sibling_family": "", "via": "answer_title", "answer_title": "Other members: breast hook, bulb angle, cross tie, margin / coffin / shoe plates", "cross_family": false }, { "answer_id": "SHIPTYPE-BTC-002", "score": 0.39097654819488525, "sibling_score": 0.39097654819488525, "answer_score": null, "sibling_qid": "CHE-2025-11-0082-Q008", "sibling_text": "why bow flare is big in container compared to bulk carrier", "sibling_family": "", "via": "sibling", "answer_title": "Why a container ship has more bow flare than a bulk carrier or tanker", "cross_family": false } ] }, { "qid": "MUM-2026-03-2937-Q001", "text": "Sanjib choudhary & Shirish 4b & 6 No.of attempt", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2026-03-2937", "tray": "new", "candidates": [ { "answer_id": "CHAIN-TENS-A-003", "score": 0.4070515036582947, "sibling_score": 0.4070515036582947, "answer_score": null, "sibling_qid": "MUM-2026-02-2546-Q006", "sibling_text": "6 repeat", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "Chain Tightening Procedure — MC / MC-C / ME", "cross_family": false }, { "answer_id": "NDT-METH-P01-001", "score": 0.3774081766605377, "sibling_score": 0.3774081766605377, "answer_score": null, "sibling_qid": "MUM-2026-03-2946-Q006", "sibling_text": "the best thing you can do is figure out which exams you can appear for whether single subjects pairs or all together it depends on your will and capability for me i appeared in pairs 2 writtens and 1 oral because i knew my capability it differs for everyone many attempt all 6 together as per my knowledge few pass all 6 some pass 4 5 some pass 1 3 and some failed all", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "NDT methods, NDT vs destructive testing, and onboard use", "cross_family": false }, { "answer_id": "WBRT-001", "score": 0.3603920638561249, "sibling_score": 0.3603920638561249, "answer_score": null, "sibling_qid": "MUM-2026-01-2904-Q011", "sibling_text": "brake retedering test he said to internal he is okay in 4b and 6 me thoda thoda bataya then internal said okay i m giving u 4b and repeat in 6", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Carrying out a mooring-winch brake rendering test", "cross_family": true } ] }, { "qid": "MUM-2026-03-2938-Q001", "text": "Anil deswal external internal idk First he scolded me coz my voice was mute and I didn't know how to unmute, he told me I know it's not ur first attempt and if it's ur 10 attempt u will repeat same mistake.", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2026-03-2938", "tray": "new", "candidates": [ { "answer_id": "NOISE-CODE-002", "score": 0.43089559674263, "sibling_score": 0.43089559674263, "answer_score": null, "sibling_qid": "KOC-2024-12-0488-Q008", "sibling_text": "something about noise code i told noise measurement report he said ok ok internal no questions", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "How do you verify the ship complies, and find the onboard noise levels for different locations?", "cross_family": true }, { "answer_id": "SAV-002", "score": 0.4299108386039734, "sibling_score": 0.4299108386039734, "answer_score": null, "sibling_qid": "KOL-2025-10-3861-Q006", "sibling_text": "starting air valve leaking how to identify from which unit while you are at port answer with proper steps satisfied ext scored me 3 5 out of 5 infront of int finally screwd me for number of attempts why no passing why poor preparation and all i closed my hand and told very difficult to remember three note book which i prepared sir", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Identifying and testing a leaking starting air valve", "cross_family": true }, { "answer_id": "ISM-AUDIT-P01-001", "score": 0.41542962193489075, "sibling_score": 0.41542962193489075, "answer_score": null, "sibling_qid": "KOC-2021-07-0009-Q006", "sibling_text": "ism preparation i told more than 10 but he is not satisfied", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Preparing engine room, records and documents for ISM/SMS audit (2/E)", "cross_family": true } ] }, { "qid": "MUM-2026-03-2942-Q003", "text": "Experience/ company/ basic introduction", "family": "Status & Introduction", "subtopic": "Company Introduction", "tid": "MUM-2026-03-2942", "tray": "new", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.5008331537246704, "sibling_score": 0.5008331537246704, "answer_score": null, "sibling_qid": "MUM-2026-05-3248-Q001", "sibling_text": "introduction sea time company pre sea ship type engine type me", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.4808988571166992, "sibling_score": 0.4808988571166992, "answer_score": null, "sibling_qid": "MUM-2026-09-3912-Q001", "sibling_text": "company name type of ships native place", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false }, { "answer_id": "MEB-MEC-P03-005", "score": 0.4345959424972534, "sibling_score": 0.4345959424972534, "answer_score": null, "sibling_qid": "MUM-2024-11-0965-Q002", "sibling_text": "brief review about me and rt flex engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "MAN ME vs Sulzer / Wärtsilä RT-flex", "cross_family": true } ] }, { "qid": "MUM-2026-03-2942-Q004", "text": "1_Type of engine / type of ship", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "MUM-2026-03-2942", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.7853209376335144, "sibling_score": 0.7853209376335144, "answer_score": null, "sibling_qid": "CHE-2026-04-0373-Q001S6", "sibling_text": "type of ship specification of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.7637993693351746, "sibling_score": 0.7637993693351746, "answer_score": null, "sibling_qid": "MUM-2026-07-3668-Q004", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "AC-VE-001", "score": 0.7261679768562317, "sibling_score": 0.7261679768562317, "answer_score": null, "sibling_qid": "MUM-2026-01-2904-Q001", "sibling_text": "what type of ship engine power and nomenclature", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Volumetric efficiency: define it, and if it drops how do you improve it (with bumping clearance)?", "cross_family": false } ] }, { "qid": "MUM-2026-03-2942-Q011", "text": "Specialties of material ?", "family": "Materials & Metallurgy", "subtopic": "Iron-Carbon Diagram / Material Composition / Alloying Elements", "tid": "MUM-2026-03-2942", "tray": "new", "candidates": [ { "answer_id": "BUNK-SAMP-004", "score": 0.5667625069618225, "sibling_score": 0.5667625069618225, "answer_score": null, "sibling_qid": "KOC-2025-02-2060-Q017", "sibling_text": "material", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Sample container, material, quantity, marking and bottles", "cross_family": true }, { "answer_id": "BUNK-SAMP-003", "score": 0.5626139640808105, "sibling_score": 0.5626139640808105, "answer_score": null, "sibling_qid": "KOC-2025-02-2060-Q021", "sibling_text": "specialty", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "The sampling connection / flange and drip-sampler arrangement", "cross_family": true }, { "answer_id": "HT-A-001", "score": 0.5457125902175903, "sibling_score": 0.5457125902175903, "answer_score": null, "sibling_qid": "MUM-2026-03-2617-Q007", "sibling_text": "type of hear treatment process on different material", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Heat treatment: what it is, the main methods, and why it is done", "cross_family": true } ] }, { "qid": "MUM-2026-03-2942-Q012", "text": "9_Type of bed plate", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Bedplate / A-Frame", "tid": "MUM-2026-03-2942", "tray": "new", "candidates": [ { "answer_id": "FWFB-P02-007", "score": 0.6472904086112976, "sibling_score": 0.6472904086112976, "answer_score": null, "sibling_qid": "MUM-2026-03-2952-Q007", "sibling_text": "what type of bedplate", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Transverse and longitudinal girders: arrangement and purpose", "cross_family": false }, { "answer_id": "CHK-330-004", "score": 0.5071248412132263, "sibling_score": 0.5071248412132263, "answer_score": 0.3549324944615364, "sibling_qid": "MUM-2026-03-1306-Q014S4", "sibling_text": "bed plate parts choking arrangement alignment of shaft intermediate shaft take out procedure", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Chocking arrangement on the main engine bedplate seating", "cross_family": false }, { "answer_id": "BED-CHOCK-001", "score": 0.504436194896698, "sibling_score": 0.504436194896698, "answer_score": null, "sibling_qid": "MUM-2023-08-0952-Q004", "sibling_text": "how to fix bed plate on ship", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "How is the main-engine bedplate fixed to the ship's structure?", "cross_family": false } ] }, { "qid": "MUM-2026-03-2942-Q015", "text": "12_Which surveyor done by 13_classification society", "family": "SOLAS - General (HOLD)", "subtopic": "Solas Chapter 12 - Bulk", "tid": "MUM-2026-03-2942", "tray": "new", "candidates": [ { "answer_id": "CSAS-SURV-001", "score": 0.5848692059516907, "sibling_score": 0.5848692059516907, "answer_score": 0.3988403037190437, "sibling_qid": "KOL-2025-10-1111-Q002", "sibling_text": "surveys under classification society", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Certificate of class — what it is, who issues it, what class looks after", "cross_family": true }, { "answer_id": "IACS-324-008", "score": 0.5841450095176697, "sibling_score": 0.5841450095176697, "answer_score": 0.416919606924057, "sibling_qid": "KOC-2025-09-0652-Q002", "sibling_text": "surveys under classification society", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "8. What surveys are carried out under a classification society?", "cross_family": true }, { "answer_id": "SURV-GEN-002", "score": 0.48509740829467773, "sibling_score": 0.48509740829467773, "answer_score": 0.39233254492282865, "sibling_qid": "KOL-2023-10-4028-Q010", "sibling_text": "classification survey and statutory survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Statutory survey versus classification survey", "cross_family": true } ] }, { "qid": "MUM-2026-03-2942-Q019", "text": "18_ boiler type", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2026-03-2942", "tray": "new", "candidates": [ { "answer_id": "BLR-CAP-BOILER-CAPACITY-RATING-005", "score": 0.640601634979248, "sibling_score": 0.640601634979248, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q009", "sibling_text": "type of boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "What are boiler pressure ratings or maximum working pressure?", "cross_family": true }, { "answer_id": "BLR-TUBE-P01-002", "score": 0.6316900849342346, "sibling_score": 0.6316900849342346, "answer_score": 0.47944013476371766, "sibling_qid": "CHE-2026-05-0555-Q009", "sibling_text": "what type boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "03. Types, functions and arrangement of boiler tubes", "cross_family": true }, { "answer_id": "BLR-DRUM-002", "score": 0.6297219395637512, "sibling_score": 0.6297219395637512, "answer_score": null, "sibling_qid": "MUM-2026-06-3660-Q005", "sibling_text": "boiler type and boiler construction", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Steam-drum construction, material and plate manufacture, and construction-stage tests", "cross_family": true } ] }, { "qid": "MUM-2026-03-2942-Q022", "text": "21_ significance of blow ring", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2026-03-2942", "tray": "new", "candidates": [ { "answer_id": "SLOWTURN-BT-002", "score": 0.3761745095252991, "sibling_score": 0.3761745095252991, "answer_score": null, "sibling_qid": "KOC-2025-08-1049-Q010", "sibling_text": "why blow throw", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Blow-through — why it is done, and why slow turning is still needed after it", "cross_family": true }, { "answer_id": "CYL-LINER-P04-005", "score": 0.3712369203567505, "sibling_score": 0.3712369203567505, "answer_score": null, "sibling_qid": "MUM-2021-09-1010-Q010", "sibling_text": "purpose of flame ring", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Anti-polishing / flame / fire ring — location, purpose, material", "cross_family": true }, { "answer_id": "PRING-B-004", "score": 0.35461926460266113, "sibling_score": 0.35461926460266113, "answer_score": null, "sibling_qid": "KOC-2025-08-1570-Q015", "sibling_text": "liner how many rings show me positions", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Function, sealing, position & arrangement", "cross_family": true } ] }, { "qid": "MUM-2026-03-2942-Q039", "text": "4b pass _ 6 fail", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2026-03-2942", "tray": "new", "candidates": [ { "answer_id": "WBRT-001", "score": 0.5314937233924866, "sibling_score": 0.5314937233924866, "answer_score": null, "sibling_qid": "MUM-2026-01-2904-Q011", "sibling_text": "brake retedering test he said to internal he is okay in 4b and 6 me thoda thoda bataya then internal said okay i m giving u 4b and repeat in 6", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Carrying out a mooring-winch brake rendering test", "cross_family": true }, { "answer_id": "CHAIN-TENS-A-003", "score": 0.5288417935371399, "sibling_score": 0.5288417935371399, "answer_score": null, "sibling_qid": "MUM-2026-02-2546-Q006", "sibling_text": "6 repeat", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "Chain Tightening Procedure — MC / MC-C / ME", "cross_family": false }, { "answer_id": "CBV-001", "score": 0.5261484384536743, "sibling_score": 0.5261484384536743, "answer_score": null, "sibling_qid": "MUM-2025-12-2517-Q005", "sibling_text": "counter balance valve 4b pass 6 repeat", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "What is a counter-balance valve, why fitted, and why needed even with a directional-control valve?", "cross_family": true } ] }, { "qid": "MUM-2026-03-2944-Q007", "text": "In europe how will you order a filter ?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Filter", "tid": "MUM-2026-03-2944", "tray": "new", "candidates": [ { "answer_id": "FLT-BF052-005", "score": 0.49156057834625244, "sibling_score": 0.49156057834625244, "answer_score": 0.3372293204069137, "sibling_qid": "MUM-2025-08-2348-Q004", "sibling_text": "what type of filter", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "What type of fuel filter is fitted, and what is a micron in filter rating?", "cross_family": false }, { "answer_id": "LOF-359-002", "score": 0.46961909532546997, "sibling_score": 0.46961909532546997, "answer_score": 0.317161862552166, "sibling_qid": "MUM-2026-05-3246-Q001", "sibling_text": "mesh type and micro size filter", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "FO Filter vs LO Filter — Which Is Finer, and Why?", "cross_family": false }, { "answer_id": "FLT-BF052-003", "score": 0.46104514598846436, "sibling_score": 0.46104514598846436, "answer_score": null, "sibling_qid": "KOL-2018-05-1373-Q008", "sibling_text": "how to change over a hot filter", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How do you change over and clean a hot fuel filter, and how do you isolate it?", "cross_family": false } ] }, { "qid": "MUM-2026-03-2946-Q011", "text": "The subject that will make your life miserable is Safety, as you need to attempt 5 questions in 2 hours. So, try to be creative with bullet points and flow charts if possible.", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2026-03-2946", "tray": "new", "candidates": [ { "answer_id": "SHORE-CONN-P03-002", "score": 0.5905555486679077, "sibling_score": 0.5905555486679077, "answer_score": null, "sibling_qid": "MUM-2026-09-3886-Q007", "sibling_text": "shore supply what are all the safeties present", "sibling_family": "Electrical - Distribution & MSB", "via": "sibling", "answer_title": "Precautions, safeties and earthing before connecting shore supply", "cross_family": true }, { "answer_id": "TNK-SAFE-BF26-002", "score": 0.5883188247680664, "sibling_score": 0.5883188247680664, "answer_score": null, "sibling_qid": "MUM-2023-06-0107-Q004", "sibling_text": "ig system safeties in details and cross questions", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What safeties are provided on the cargo tanks of an oil, crude or chemical tanker?", "cross_family": true }, { "answer_id": "RA-MGMT-A-001", "score": 0.5837247967720032, "sibling_score": 0.5837247967720032, "answer_score": null, "sibling_qid": "MUM-2023-08-2187-Q002", "sibling_text": "rish assessment what all things are mentioned what on x and y axis of the chart how do you minimize the hazard toomany cross questions", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "What is risk, what is hazard, and what is risk assessment?", "cross_family": true } ] }, { "qid": "MUM-2026-03-2951-Q004", "text": "How the plate and shoe lubrication takes place ?", "family": "Shafting, Propeller & Rudder", "subtopic": "Thrust Pad / Shoe Lubrication", "tid": "MUM-2026-03-2951", "tray": "new", "candidates": [ { "answer_id": "XHD-BRG-C-004", "score": 0.5822867751121521, "sibling_score": 0.5822867751121521, "answer_score": null, "sibling_qid": "KOL-2025-01-1795-Q001", "sibling_text": "crosshead and guide shoe lubrication", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "D. Crosshead and guide-shoe lubrication: oil path, the no-load-reversal film problem, MAN vs Sulzer", "cross_family": true }, { "answer_id": "TB-BEAR-003", "score": 0.5626059174537659, "sibling_score": 0.5626059174537659, "answer_score": null, "sibling_qid": "KOC-2021-05-0940-Q001", "sibling_text": "how thrust bearing lubrication is happening ans wedge lubrication thrust pad is pivoted oil is falling over thrust collar due relative motion of thrust collar with thrust pad and also with the tilt of thrust pad and increase in area occur between pad and thrust collar this helps in wedge formation", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Michell / tilting-pad thrust bearing — principle & oil-wedge lubrication", "cross_family": false }, { "answer_id": "XHD-BRG-B-007", "score": 0.5612145662307739, "sibling_score": 0.5612145662307739, "answer_score": 0.4510249555110931, "sibling_qid": "KOL-2023-11-1765-Q001", "sibling_text": "how cross head bearing and guide and guide shoe lubrication happen", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Guide and guide-shoe lubrication, and the oil path from sump to crosshead", "cross_family": true } ] }, { "qid": "MUM-2026-03-2952-Q001", "text": "Date 30/03/26", "family": "Other Conventions", "subtopic": "IMDG Code", "tid": "MUM-2026-03-2952", "tray": "new", "candidates": [ { "answer_id": "SURV-ANNIV-002", "score": 0.43211305141448975, "sibling_score": 0.43211305141448975, "answer_score": null, "sibling_qid": "KOC-2025-12-0773-Q006", "sibling_text": "intermediate survey date from 1 1 2025 30 31 dec", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "How are the annual, intermediate and renewal survey dates and windows worked out from the anniversary date?", "cross_family": true }, { "answer_id": "AV6-P05-01", "score": 0.4088272452354431, "sibling_score": 0.4088272452354431, "answer_score": null, "sibling_qid": "CHE-2026-03-0122-Q008", "sibling_text": "what are the dates u collect", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP Part II — IMO DCS plan and contents", "cross_family": true }, { "answer_id": "REEF-CHG-001", "score": 0.4028211832046509, "sibling_score": 0.4028211832046509, "answer_score": null, "sibling_qid": "KOL-2025-03-3744-Q004", "sibling_text": "refer charging and few more 5 03 2024", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "01Charging or replenishing the refrigerant in a refrigeration / AC plant", "cross_family": true } ] }, { "qid": "MUM-2026-03-2952-Q003", "text": "How many years after class 4?", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2026-03-2952", "tray": "new", "candidates": [ { "answer_id": "STCW-MAN-006", "score": 0.452536940574646, "sibling_score": 0.452536940574646, "answer_score": null, "sibling_qid": "NOI-2026-09-0008-Q001", "sibling_text": "training institue sea time after class 4 coc", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "What are the levels and categories of seafarer under STCW, and what are the duties of the Second Engineer at management level?", "cross_family": true }, { "answer_id": "CO2-SYS-003", "score": 0.4461134076118469, "sibling_score": 0.4461134076118469, "answer_score": null, "sibling_qid": "KOC-2025-01-0509-Q004", "sibling_text": "10 year", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 system — use decisions, suitability and post-release checks", "cross_family": true }, { "answer_id": "AVR-EXC-A-001", "score": 0.4240915775299072, "sibling_score": 0.4240915775299072, "answer_score": null, "sibling_qid": "MUM-2025-09-1672-Q004", "sibling_text": "4 avr", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "What is the purpose and function of the AVR?", "cross_family": true } ] }, { "qid": "MUM-2026-03-2952-Q005", "text": "How many attempts ?", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2026-03-2952", "tray": "new", "candidates": [ { "answer_id": "CHAIN-TENS-A-003", "score": 0.5303611159324646, "sibling_score": 0.5303611159324646, "answer_score": null, "sibling_qid": "MUM-2026-02-2546-Q006", "sibling_text": "6 repeat", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "Chain Tightening Procedure — MC / MC-C / ME", "cross_family": false }, { "answer_id": "CTRL-TL-010", "score": 0.4437776207923889, "sibling_score": 0.4437776207923889, "answer_score": null, "sibling_qid": "KOL-2018-12-2250-Q004", "sibling_text": "4 failsafematic", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Pneumatic control: nozzle-flapper, DP, actuators and fail-safe", "cross_family": true }, { "answer_id": "SG-055-B-003", "score": 0.4174354672431946, "sibling_score": 0.4174354672431946, "answer_score": null, "sibling_qid": "KOL-2021-08-1619-Q004", "sibling_text": "50 redundancy", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Redundancy and the single-failure requirement (50% / 100%)", "cross_family": true } ] }, { "qid": "MUM-2026-03-2952-Q008", "text": "What is gandola bedplate?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Bedplate / A-Frame", "tid": "MUM-2026-03-2952", "tray": "new", "candidates": [ { "answer_id": "FWFB-P02-007", "score": 0.5530959963798523, "sibling_score": 0.5530959963798523, "answer_score": null, "sibling_qid": "MUM-2026-03-2952-Q007", "sibling_text": "what type of bedplate", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Transverse and longitudinal girders: arrangement and purpose", "cross_family": false }, { "answer_id": "BED-CHOCK-001", "score": 0.4886992573738098, "sibling_score": 0.4886992573738098, "answer_score": null, "sibling_qid": "MUM-2023-08-0952-Q004", "sibling_text": "how to fix bed plate on ship", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "How is the main-engine bedplate fixed to the ship's structure?", "cross_family": false }, { "answer_id": "CHK-330-004", "score": 0.47019559144973755, "sibling_score": 0.47019559144973755, "answer_score": 0.4116841465234756, "sibling_qid": "MUM-2026-03-1306-Q014S4", "sibling_text": "bed plate parts choking arrangement alignment of shaft intermediate shaft take out procedure", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Chocking arrangement on the main engine bedplate seating", "cross_family": false } ] }, { "qid": "MUM-2026-03-2952-Q009", "text": "What perlite and cementite where is it use?", "family": "NDT & Material Testing", "subtopic": "Pearlite / Cementite", "tid": "MUM-2026-03-2952", "tray": "new", "candidates": [ { "answer_id": "MATPROP-A-003", "score": 0.4300166964530945, "sibling_score": 0.4300166964530945, "answer_score": null, "sibling_qid": "KOL-2016-10-1241-Q002", "sibling_text": "white gray and nodular cast iron application and contents", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Cast iron: grey, white, nodular; versus cast steel", "cross_family": false }, { "answer_id": "COAT-543-002", "score": 0.42439955472946167, "sibling_score": 0.42439955472946167, "answer_score": 0.3084599494934082, "sibling_qid": "MUM-2022-11-2717-Q015", "sibling_text": "cermet coating why used", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Cermet and aluminium (alu) coatings — purpose and applications", "cross_family": false }, { "answer_id": "FURN-REF-001", "score": 0.4226653277873993, "sibling_score": 0.4226653277873993, "answer_score": 0.31853095442056656, "sibling_qid": "CHE-2026-05-0593-Q004", "sibling_text": "cement material in boiler i want chemical name and also maker name", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Boiler refractory — materials, types, composition and acidic / basic refractory", "cross_family": true } ] }, { "qid": "MUM-2026-03-2952-Q016", "text": "What type of membrane is used nowadays?", "family": "Other Conventions", "subtopic": "IMDG Code", "tid": "MUM-2026-03-2952", "tray": "new", "candidates": [ { "answer_id": "MARVS-TANK-004", "score": 0.4688352346420288, "sibling_score": 0.4688352346420288, "answer_score": 0.3514864847064018, "sibling_qid": "MUM-2024-11-0221-Q003", "sibling_text": "membrane tank composition", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Membrane tanks — NO96 vs Mark III, composition, insulation material and PU-foam generation", "cross_family": true }, { "answer_id": "GC-TANK-004", "score": 0.4544332027435303, "sibling_score": 0.4544332027435303, "answer_score": null, "sibling_qid": "CHE-2025-09-0300-Q007", "sibling_text": "type of tank and membrane material", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Gas-carrier cargo tank construction: materials, insulation, fixing and tank safeties", "cross_family": true }, { "answer_id": "FWG-RO-006", "score": 0.3637055456638336, "sibling_score": 0.3637055456638336, "answer_score": null, "sibling_qid": "KOC-2026-08-2117-Q001", "sibling_text": "reverse osmosis", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Explain reverse osmosis — the principle and flow, pre- and post-treatment, and what chemical is dosed before the RO.", "cross_family": true } ] }, { "qid": "MUM-2026-04-0875-Q001", "text": "Type of Vessel", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-04-0875", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8511907458305359, "sibling_score": 0.8511907458305359, "answer_score": null, "sibling_qid": "MUM-2026-06-3384-Q001", "sibling_text": "type of vessel", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.7775158286094666, "sibling_score": 0.7775158286094666, "answer_score": null, "sibling_qid": "CHE-2026-02-0481-Q001", "sibling_text": "type of vessels sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7703649997711182, "sibling_score": 0.7703649997711182, "answer_score": 0.5231714308261871, "sibling_qid": "CHE-2026-02-0109-Q001", "sibling_text": "type of ship explain what type is your vessel explain their type and difference", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "MUM-2026-04-0876-Q002", "text": "Type of ship sailed (LPG)", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-04-0876", "tray": "review", "candidates": [ { "answer_id": "LPG-LNG-009", "score": 0.8315199017524719, "sibling_score": 0.8315199017524719, "answer_score": 0.47659231424331666, "sibling_qid": "CHE-2026-04-0164-Q001", "sibling_text": "type of ship sailed lpg carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Gas-carrier fundamentals and ship-specific traps", "cross_family": false }, { "answer_id": "IGC-GAS-004", "score": 0.7240508198738098, "sibling_score": 0.7240508198738098, "answer_score": null, "sibling_qid": "KOL-2025-08-1014-Q002", "sibling_text": "type of ship sailed lpg classification of gas carriers of as per igc code", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Ship-type classification under the IGC Code — 1G / 2G / 2PG / 3G", "cross_family": true }, { "answer_id": "COT-01", "score": 0.7064130902290344, "sibling_score": 0.7064130902290344, "answer_score": null, "sibling_qid": "KOC-2026-04-0892-Q003", "sibling_text": "type of ship sailed tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Oil-tanker types, definitions and cargo capability", "cross_family": false } ] }, { "qid": "MUM-2026-04-0880-Q009", "text": "Certificate in SOLAS XI-1 and XI-2 Waiting in lobby..", "family": "SOLAS - General", "subtopic": "SOLAS Chapters / Certificates", "tid": "MUM-2026-04-0880", "tray": "new", "candidates": [ { "answer_id": "CERT-LIST-P02-001", "score": 0.5098812580108643, "sibling_score": 0.5098812580108643, "answer_score": null, "sibling_qid": "KOC-2023-05-0191-Q002", "sibling_text": "certificates in solas", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "SOLAS certificates carried onboard", "cross_family": true }, { "answer_id": "SOLAS-CH-007", "score": 0.4885004758834839, "sibling_score": 0.4885004758834839, "answer_score": 0.25950897485017776, "sibling_qid": "MUM-2026-06-3477-Q004", "sibling_text": "certificates under solas chapter xi", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS Chapter IX - ISM Code and certificates", "cross_family": true }, { "answer_id": "ISPS-SL-006", "score": 0.4613390564918518, "sibling_score": 0.4613390564918518, "answer_score": 0.25564073175191876, "sibling_qid": "KOL-2019-10-0329-Q011", "sibling_text": "certificates under isps 2 name i told but he asked me about 1", "sibling_family": "ISPS", "via": "sibling", "answer_title": "ISPS / ISSC certificates and documents — issue, audit and verification", "cross_family": true } ] }, { "qid": "MUM-2026-04-0884-Q001", "text": "Type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-04-0884", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8362626433372498, "sibling_score": 0.8362626433372498, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8015266060829163, "sibling_score": 0.8015266060829163, "answer_score": 0.5469690978527069, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8002626895904541, "sibling_score": 0.8002626895904541, "answer_score": 0.5215309828519821, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2026-04-0894-Q004", "text": "Pilot ladder what's latest circular dg, class or Solas. On-board testing method Pilot ladder.", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Lifeboat / Davit / LSA", "tid": "MUM-2026-04-0894", "tray": "new", "candidates": [ { "answer_id": "LB-SDT-A-001", "score": 0.5746309161186218, "sibling_score": 0.5746309161186218, "answer_score": null, "sibling_qid": "KOC-2023-03-0168-Q009", "sibling_text": "tests on life boat n davit", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat static and dynamic test — purpose and procedure", "cross_family": false }, { "answer_id": "DRG-B-013", "score": 0.5687435269355774, "sibling_score": 0.5687435269355774, "answer_score": null, "sibling_qid": "KOL-2018-04-0167-Q007", "sibling_text": "what test psc make in lifeboat davit", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "The test and examination regime — and what PSC looks at", "cross_family": false }, { "answer_id": "LBT-TEST-B-004", "score": 0.5576900839805603, "sibling_score": 0.5576900839805603, "answer_score": 0.43556895554065705, "sibling_qid": "KOC-2024-02-0305-Q009", "sibling_text": "int what are the tests done on life boat davits", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Tests carried out on the lifeboat/davit onboard (overview)", "cross_family": false } ] }, { "qid": "MUM-2026-04-0895-Q008", "text": "Ism and iso", "family": "ISM Code", "subtopic": "TQM / Quality Management", "tid": "MUM-2026-04-0895", "tray": "new", "candidates": [ { "answer_id": "WIDAS-SMK-007", "score": 0.6360085606575012, "sibling_score": 0.6360085606575012, "answer_score": null, "sibling_qid": "MUM-2026-03-0855-Q003", "sibling_text": "diff between iso ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Smoke sampling line — testing, confirming clear, and what is in the tube", "cross_family": false }, { "answer_id": "ISM-ELEM-002", "score": 0.5745640397071838, "sibling_score": 0.5745640397071838, "answer_score": 0.3093206286430359, "sibling_qid": "MUM-2026-08-3833-Q002", "sibling_text": "ism code", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the ISM Code?", "cross_family": false }, { "answer_id": "ISM-SMC-B-001", "score": 0.5493088960647583, "sibling_score": 0.5493088960647583, "answer_score": null, "sibling_qid": "KOL-2019-02-0259-Q005", "sibling_text": "ism doc smc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "SMC — purpose, contents, issue and validity", "cross_family": false } ] }, { "qid": "MUM-2026-04-0896-Q001", "text": "Ism history why it came in to force , when it came into force, what and when was the last ammendmend to it.", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "MUM-2026-04-0896", "tray": "new", "candidates": [ { "answer_id": "BC-IMSBC-005", "score": 0.5526911616325378, "sibling_score": 0.5526911616325378, "answer_score": 0.3713225096464157, "sibling_qid": "MUM-2026-06-3603-Q001", "sibling_text": "latest amendments in ism and when", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "5. Latest IMSBC Code amendments", "cross_family": false }, { "answer_id": "CII-P01-002", "score": 0.43948858976364136, "sibling_score": 0.43948858976364136, "answer_score": null, "sibling_qid": "CHE-2025-08-0018-Q005", "sibling_text": "cii when it came into force", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "When did CII enter into force, when are ratings issued, and the implementation timings", "cross_family": true }, { "answer_id": "COT-P02-10", "score": 0.4245799481868744, "sibling_score": 0.4245799481868744, "answer_score": null, "sibling_qid": "KOC-2023-03-0169-Q007", "sibling_text": "ig latest amendments", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "State and explain the latest statutory amendments affecting tanker inert-gas systems, including applicability and practical changes on board.", "cross_family": true } ] }, { "qid": "MUM-2026-04-0901-Q006", "text": "How to check o/b valve is working?", "family": "Auxiliary Equipment", "subtopic": "VALVES", "tid": "MUM-2026-04-0901", "tray": "new", "candidates": [ { "answer_id": "REEF-COMP-008", "score": 0.5793706178665161, "sibling_score": 0.5793706178665161, "answer_score": null, "sibling_qid": "KOL-2019-11-3293-Q001", "sibling_text": "in refer comp suct and delivery valve working properly or not how will u ascertain or know without opening the valves or checking the pressure gauges", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Valves, clearances, oil carry-over, refrigerant-in-oil, frosting, tandem valves, cooling — fault checks", "cross_family": true }, { "answer_id": "SAV-001", "score": 0.5743458271026611, "sibling_score": 0.5743458271026611, "answer_score": null, "sibling_qid": "MUM-2024-08-2236-Q004", "sibling_text": "starting air valve how to check if it s opening and closing properly and how to ensure seat is sealing properly", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Construction and working of the main automatic starting air valve", "cross_family": true }, { "answer_id": "SAV-004", "score": 0.5592938661575317, "sibling_score": 0.5592938661575317, "answer_score": null, "sibling_qid": "MUM-2026-02-2552-Q002", "sibling_text": "testing and check on starting air valve", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Overhaul, assembly and testing of the starting air valve", "cross_family": true } ] }, { "qid": "MUM-2026-04-0915-Q001S5", "text": "What is there in cargo tank to reduce sloshing and Perforated plate in cargo tank height?", "family": "", "subtopic": "", "tid": "MUM-2026-04-0915", "tray": "new", "candidates": [ { "answer_id": "FSE-P02-003", "score": 0.5637083649635315, "sibling_score": 0.5637083649635315, "answer_score": 0.4553482115268707, "sibling_qid": "MUM-2026-03-0840-Q003", "sibling_text": "what is there to prevent sloshing of cargo in tank asked if it s watertight or not", "sibling_family": "Cargo Ops - 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Fuel Injection & Pumps", "via": "sibling", "answer_title": "FIVA valve — construction, function and basic operation", "cross_family": false } ] }, { "qid": "MUM-2026-04-1313-Q001", "text": "ME type", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-04-1313", "tray": "new", "candidates": [ { "answer_id": "AEME-DIFF-001", "score": 0.5816076993942261, "sibling_score": 0.5816076993942261, "answer_score": null, "sibling_qid": "MUM-2025-05-2295-Q004", "sibling_text": "types of me and ae worked on", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": true }, { "answer_id": "MEGI-304-002", "score": 0.5479397773742676, "sibling_score": 0.5479397773742676, "answer_score": null, "sibling_qid": "KOL-2026-01-2036-Q001", "sibling_text": "what is me g", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "2. ME-GI / ME-GA / ME-G and recent dual-fuel engine advancements", "cross_family": true }, { "answer_id": "ENG-NOM-001", "score": 0.5201892256736755, "sibling_score": 0.5201892256736755, "answer_score": null, "sibling_qid": "NOI-2026-09-0008-Q002", "sibling_text": "me and ae type and nomenclature", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Nomenclature of ME and AE (asked together)", "cross_family": true } ] }, { "qid": "MUM-2026-04-1313-Q002", "text": "How u understand the engine is ME", "family": "2-Stroke - Reversing & Maneuvering", "subtopic": "EICU / Manoeuvring System", "tid": "MUM-2026-04-1313", "tray": "new", "candidates": [ { "answer_id": "MCC-MEB-P02-003", "score": 0.6204181909561157, "sibling_score": 0.6204181909561157, "answer_score": null, "sibling_qid": "MUM-2024-07-1084-Q004", "sibling_text": "me engine tha", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Conventional MC / MC-C versus electronic ME — the practical operating differences", "cross_family": true }, { "answer_id": "VIT-MECH-C-003", "score": 0.5905675888061523, "sibling_score": 0.5905675888061523, "answer_score": null, "sibling_qid": "KOC-2026-05-0046-Q004", "sibling_text": "vit explain wrt me engine", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "ME & electronic engines — timing without a VIT mechanism", "cross_family": true }, { "answer_id": "ETP-344-P03-010", "score": 0.5651598572731018, "sibling_score": 0.5651598572731018, "answer_score": null, "sibling_qid": "CHE-2025-08-0426-Q013", "sibling_text": "function test on me engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Function tests on the main engine (ME electronic engine)", "cross_family": true } ] }, { "qid": "MUM-2026-04-1316-Q009", "text": "Bumping clearance,which method to check,size of lead ■", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Bumping Clearance", "tid": "MUM-2026-04-1316", "tray": "new", "candidates": [ { "answer_id": "MAC-353-008", "score": 0.5765043497085571, "sibling_score": 0.5765043497085571, "answer_score": 0.40858903527259827, "sibling_qid": "MUM-2026-03-2944-Q008", "sibling_text": "what is diameter of lead wire used for taking bumping clearance of compressor", "sibling_family": "2-Stroke - 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Annex VI (Air & GHG)", "via": "sibling", "answer_title": "NOx — formation, limits & reduction (SCR / EGR)", "cross_family": true } ] }, { "qid": "MUM-2026-04-1320-Q008", "text": "How stress transmit in 4 stroke", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE vs ME Differences", "tid": "MUM-2026-04-1320", "tray": "new", "candidates": [ { "answer_id": "AE-CRP-004", "score": 0.5424786806106567, "sibling_score": 0.5424786806106567, "answer_score": null, "sibling_qid": "CHE-2026-05-0548-Q008", "sibling_text": "connecting rod 4s engine explain full", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE connecting-rod inspection — ovality, trueness, serrations, action if out of limit", "cross_family": false }, { "answer_id": "AE-CSB-346-001", "score": 0.5248892903327942, "sibling_score": 0.5248892903327942, "answer_score": null, "sibling_qid": "KOL-2022-05-1687-Q003", "sibling_text": "4 stroke propulsion engine thrust block arrangements", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Thrust bearing in an auxiliary / generator engine — purpose and location", "cross_family": false }, { "answer_id": "EGTP-P02-010", "score": 0.5152822732925415, "sibling_score": 0.5152822732925415, "answer_score": null, "sibling_qid": "KOL-2019-08-1471-Q002", "sibling_text": "forces how transmitted in engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Engine Forces and the Motions of the Running Gear", "cross_family": true } ] }, { "qid": "MUM-2026-04-1320-Q010", "text": "Composition of material", "family": "Materials & Metallurgy", "subtopic": "Iron-Carbon Diagram / Material Composition / Alloying Elements", "tid": "MUM-2026-04-1320", "tray": "new", "candidates": [ { "answer_id": "BUNK-SAMP-004", "score": 0.6205984354019165, "sibling_score": 0.6205984354019165, "answer_score": null, "sibling_qid": "KOC-2025-02-2060-Q017", "sibling_text": "material", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Sample container, material, quantity, marking and bottles", "cross_family": true }, { "answer_id": "SGB-212-002", "score": 0.6167048215866089, "sibling_score": 0.6167048215866089, "answer_score": null, "sibling_qid": "KOC-2025-11-2083-Q006", "sibling_text": "stainless steel material composition", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Stainless steel — composition and the role of Cr, Ni, C", "cross_family": true }, { "answer_id": "EXHV-P03-006", "score": 0.5917073488235474, "sibling_score": 0.5917073488235474, "answer_score": null, "sibling_qid": "KOL-2023-08-1754-Q005", "sibling_text": "composition of stellite and nimonic exact proportion", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve materials — Stellite and Nimonic 80A: composition, use and why", "cross_family": true } ] }, { "qid": "MUM-2026-04-2079-Q001", "text": "Introduction, How many attempts.", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2026-04-2079", "tray": "new", "candidates": [ { "answer_id": "CHAIN-TENS-A-003", "score": 0.45779070258140564, "sibling_score": 0.45779070258140564, "answer_score": null, "sibling_qid": "MUM-2026-02-2546-Q006", "sibling_text": "6 repeat", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "Chain Tightening Procedure — MC / MC-C / ME", "cross_family": false }, { "answer_id": "CTRL-TL-010", "score": 0.3779577314853668, "sibling_score": 0.3779577314853668, "answer_score": null, "sibling_qid": "KOL-2018-12-2250-Q004", "sibling_text": "4 failsafematic", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Pneumatic control: nozzle-flapper, DP, actuators and fail-safe", "cross_family": true }, { "answer_id": "ISM-AUDIT-P01-001", "score": 0.36580798029899597, "sibling_score": 0.36580798029899597, "answer_score": null, "sibling_qid": "KOC-2021-07-0009-Q006", "sibling_text": "ism preparation i told more than 10 but he is not satisfied", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Preparing engine room, records and documents for ISM/SMS audit (2/E)", "cross_family": true } ] }, { "qid": "MUM-2026-04-2082-Q005", "text": "Simple Explanation and Supportive", "family": "Risk & Safety Management", "subtopic": "Risk Assessment / Management", "tid": "MUM-2026-04-2082", "tray": "new", "candidates": [ { "answer_id": "RA-MGMT-B-001", "score": 0.6015591025352478, "sibling_score": 0.6015591025352478, "answer_score": null, "sibling_qid": "MUM-2022-07-0015-Q010", "sibling_text": "ra explain", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "How is a shipboard risk assessment prepared and carried out?", "cross_family": false }, { "answer_id": "SOLAS12-C-001", "score": 0.5855630040168762, "sibling_score": 0.5855630040168762, "answer_score": null, "sibling_qid": "KOC-2025-11-0708-Q004", "sibling_text": "explain", "sibling_family": "", "via": "sibling", "answer_title": "Explain SOLAS Chapter XII for bulk carriers — oral-exam overview", "cross_family": false }, { "answer_id": "A6-NSEC-005", "score": 0.580909252166748, "sibling_score": 0.580909252166748, "answer_score": null, "sibling_qid": "CHE-2025-08-0425-Q004", "sibling_text": "seemp 1 2 3 explanations", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP — Part I, II & III", "cross_family": true } ] }, { "qid": "MUM-2026-04-2082-Q006", "text": "Waiting in Lobby", "family": "Risk & Safety Management", "subtopic": "Risk Assessment / Management", "tid": "MUM-2026-04-2082", "tray": "new", "candidates": [ { "answer_id": "LOLL-P02-002", "score": 0.600065290927887, "sibling_score": 0.600065290927887, "answer_score": null, "sibling_qid": "KOL-2024-12-0903-Q005", "sibling_text": "angle of loll and how to reduce wait in lobby", "sibling_family": "", "via": "sibling", "answer_title": "1. Correcting angle of loll — the ballasting sequence", "cross_family": false }, { "answer_id": "CO2-SYS-002", "score": 0.5907284021377563, "sibling_score": 0.5907284021377563, "answer_score": null, "sibling_qid": "MUM-2026-01-0685-Q006", "sibling_text": "co2 maintenance waiting in lobby", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 maintenance, inspection, testing and survey routines", "cross_family": true }, { "answer_id": "STOKES-001", "score": 0.5834023356437683, "sibling_score": 0.5834023356437683, "answer_score": null, "sibling_qid": "MUM-2026-03-1286-Q007", "sibling_text": "what is strokes law waiting in lobby", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "State Stokes' law and explain its importance and where it is used", "cross_family": true } ] }, { "qid": "MUM-2026-04-2097-Q002", "text": "How to step up 12v dc to 24v dc", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Step Up / Step Down", "tid": "MUM-2026-04-2097", "tray": "review", "candidates": [ { "answer_id": "XFMR-THY-D-002", "score": 0.7629008889198303, "sibling_score": 0.7629008889198303, "answer_score": null, "sibling_qid": "MUM-2026-04-2101-Q002", "sibling_text": "how to step up 12v dc to 24v dc", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Why a transformer needs AC and cannot transform DC", "cross_family": false }, { "answer_id": "EPC-P01-07", "score": 0.6059548854827881, "sibling_score": 0.6059548854827881, "answer_score": 0.4257341206073761, "sibling_qid": "KOL-2024-03-2701-Q001", "sibling_text": "voltage doubler", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Voltage doubler — construction, working, use in a circuit, and limitations", "cross_family": false }, { "answer_id": "BDC-P02-04", "score": 0.5803300142288208, "sibling_score": 0.5803300142288208, "answer_score": 0.4284008681774139, "sibling_qid": "CHE-2026-04-0383-Q015", "sibling_text": "how do get it 24 dc", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "The ship's 24 V DC system — how it is produced, why DC, and what it supplies", "cross_family": true } ] }, { "qid": "MUM-2026-04-2101-Q001", "text": "Explain High voltage system?", "family": "Electrical - High Voltage", "subtopic": "High Voltage System", "tid": "MUM-2026-04-2101", "tray": "review", "candidates": [ { "answer_id": "T038-P01-002", "score": 0.7638911008834839, "sibling_score": 0.7638911008834839, "answer_score": 0.4710977077484131, "sibling_qid": "CHE-2026-04-0377-Q001", "sibling_text": "explain high voltage system", "sibling_family": "Electrical - High Voltage", "via": "sibling", "answer_title": "HV system onboard — layout, components, applications, earthing & protection", "cross_family": false }, { "answer_id": "HV-SYS-P02-001", "score": 0.6827906966209412, "sibling_score": 0.6827906966209412, "answer_score": null, "sibling_qid": "KOC-2026-03-1724-Q001", "sibling_text": "advantages of high voltage system", "sibling_family": "Electrical - High Voltage", "via": "sibling", "answer_title": "Why high voltage is used onboard ships", "cross_family": false }, { "answer_id": "HV-SYS-P03-001", "score": 0.6659156084060669, "sibling_score": 0.6659156084060669, "answer_score": null, "sibling_qid": "KOC-2026-08-2123-Q004", "sibling_text": "high voltage system advantage disadvantage", "sibling_family": "Electrical - High Voltage", "via": "sibling", "answer_title": "What are the advantages and disadvantages of a high-voltage ship electrical system?", "cross_family": false } ] }, { "qid": "MUM-2026-04-2101-Q001S7", "text": "DC machines?", "family": "", "subtopic": "High Voltage System", "tid": "MUM-2026-04-2101", "tray": "new", "candidates": [ { "answer_id": "DCMOT-A-001", "score": 0.5740137100219727, "sibling_score": 0.5740137100219727, "answer_score": null, "sibling_qid": "MUM-2026-07-3700-Q006", "sibling_text": "dc machines", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types, characteristics and shipboard use of DC motors", "cross_family": false }, { "answer_id": "DCP-PPC-003", "score": 0.4900054931640625, "sibling_score": 0.4900054931640625, "answer_score": 0.3097639888525009, "sibling_qid": "KOC-2025-01-0511-Q006", "sibling_text": "maintenance on dcp", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "C3 — DCP — General Working, Advantages, Disadvantages & Common Issues", "cross_family": false }, { "answer_id": "IMODCS-001", "score": 0.47156280279159546, "sibling_score": 0.47156280279159546, "answer_score": null, "sibling_qid": "MUM-2022-08-0043-Q003", "sibling_text": "what all in dcs", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is the IMO DCS? What data is collected, over what period, and what are the “gradings”?", "cross_family": false } ] }, { "qid": "MUM-2026-04-2101-Q004", "text": "One more term which I hadn't heard and can't remember atm", "family": "", "subtopic": "", "tid": "MUM-2026-04-2101", "tray": "new", "candidates": [ { "answer_id": "ENG-NOM-004", "score": 0.534510612487793, "sibling_score": 0.534510612487793, "answer_score": null, "sibling_qid": "KOL-2024-07-1948-Q003", "sibling_text": "explain nomenclature of each term", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Decode every letter and number: 6S60MC-C and 6S70ME-C", "cross_family": false }, { "answer_id": "ISM-DPA-002", "score": 0.4719359874725342, "sibling_score": 0.4719359874725342, "answer_score": null, "sibling_qid": "MUM-2026-04-0895-Q007", "sibling_text": "ism definition", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "DPA basis : which convention, which code, and who is responsible for ISM", "cross_family": false }, { "answer_id": "ISM-ELEM-002", "score": 0.47108250856399536, "sibling_score": 0.47108250856399536, "answer_score": null, "sibling_qid": "CHE-2026-08-3895-Q008", "sibling_text": "explain ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the ISM Code?", "cross_family": false } ] }, { "qid": "MUM-2026-04-2104-Q005", "text": "How to test diodes, should you remove connection or not.", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Zener / Diode / Rectifier", "tid": "MUM-2026-04-2104", "tray": "new", "candidates": [ { "answer_id": "EPC-P01-02", "score": 0.635345458984375, "sibling_score": 0.635345458984375, "answer_score": null, "sibling_qid": "CHE-2026-05-0627-Q008", "sibling_text": "diode testing", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Types of diodes, and where diodes are used on board", "cross_family": false }, { "answer_id": "EPC-P02-01", "score": 0.5813204646110535, "sibling_score": 0.5813204646110535, "answer_score": null, "sibling_qid": "KOL-2022-08-2593-Q004", "sibling_text": "what is zener diode how diode test onboard", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a zener diode? Draw its symbol, explain its working principle, and draw and explain its characteristic curve including the zener (breakdown) voltage.", "cross_family": false }, { "answer_id": "GMCM-583-A-006", "score": 0.5787164568901062, "sibling_score": 0.5787164568901062, "answer_score": null, "sibling_qid": "KOC-2025-11-1652-Q001", "sibling_text": "how to test diodes and transistors using a multimeter", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "06. Testing diodes and transistors with a multimeter", "cross_family": false } ] }, { "qid": "MUM-2026-04-2104-Q008S7", "text": "Refer and air condition unloader purpose and how it works Explain mechanical unloader in air condition plant", "family": "Refrigeration & AC", "subtopic": "Capacity Control / Unloader", "tid": "MUM-2026-04-2104", "tray": "review", "candidates": [ { "answer_id": "CAP-CTRL-002", "score": 0.737926185131073, "sibling_score": 0.737926185131073, "answer_score": 0.5080230116844177, "sibling_qid": "KOL-2025-07-1992-Q004", "sibling_text": "unloader of ref compressor mechanism of unloader", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "CG-002 · How the cylinder-unloader mechanism works", "cross_family": false }, { "answer_id": "UNL-330-002", "score": 0.6903108954429626, "sibling_score": 0.6903108954429626, "answer_score": 0.5456041604280472, "sibling_qid": "MUM-2026-06-3640-Q004", "sibling_text": "self unloader working of compressor", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Explain the working of the main air compressor unloader.", "cross_family": false }, { "answer_id": "CAP-CTRL-003", "score": 0.6805359721183777, "sibling_score": 0.6805359721183777, "answer_score": 0.5365167200565338, "sibling_qid": "CHE-2026-05-0526-Q003", "sibling_text": "ac and refer unloader difference and working", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "CG-003 · AC-compressor vs refrigeration-compressor unloaders — the real difference", "cross_family": false } ] }, { "qid": "MUM-2026-04-2104-Q008S9", "text": "Chain slack reason how to identify", "family": "2-Stroke - Components (Other)", "subtopic": "Chain Drive & Tensioning", "tid": "MUM-2026-04-2104", "tray": "new", "candidates": [ { "answer_id": "CHAIN-TENS-A-001", "score": 0.5882949829101562, "sibling_score": 0.5882949829101562, "answer_score": 0.2903812289237976, "sibling_qid": "KOL-2021-04-3398-Q002", "sibling_text": "how to identify slack chain", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Slack Chain — Indication & Effects", "cross_family": true }, { "answer_id": "CHAIN-TENS-B-002", "score": 0.49107837677001953, "sibling_score": 0.49107837677001953, "answer_score": null, "sibling_qid": "KOL-2026-01-3902-Q003", "sibling_text": "how will u come to know chain is slack chain link renewal procedure", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Changing a damaged link and renewing the main-engine chain", "cross_family": true }, { "answer_id": "CHAIN-TENS-C-001", "score": 0.4817411005496979, "sibling_score": 0.4817411005496979, "answer_score": null, "sibling_qid": "MUM-2024-04-2225-Q004", "sibling_text": "chain slack indicaton", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main-engine chain drive — how you know it is slack, and how you check and tighten it", "cross_family": true } ] }, { "qid": "MUM-2026-04-2108-Q004", "text": "Synchronizing with voltmeter What is under voltage trip ..working Boiler electrical rating for electrode What is dielectric strength What is power factor", "family": "", "subtopic": "Voltage System (440V / 690V / HV)", "tid": "MUM-2026-04-2108", "tray": "review", "candidates": [ { "answer_id": "DP-TX-005", "score": 0.7697768807411194, "sibling_score": 0.7697768807411194, "answer_score": null, "sibling_qid": "MUM-2026-02-1960-Q005", "sibling_text": "low water level test by dp transmitter what is under voltage trip working boiler electrical rating for electrode what is dielectric strength what is power factor", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "DP transmitter calibration, testing, isolation/renewal and precautions", "cross_family": false }, { "answer_id": "SYNC-C-002", "score": 0.6286060214042664, "sibling_score": 0.6286060214042664, "answer_score": null, "sibling_qid": "MUM-2026-02-1971-Q001", "sibling_text": "synchronisations methods if syncroscope fail one more was there don t remember even i didn t understood so i said i m not aware dielectric strength defination and for air and vaccum", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Synchronising without a synchroscope — lamp, voltmeter and alternative methods", "cross_family": false }, { "answer_id": "CBKR-H-001", "score": 0.6259145736694336, "sibling_score": 0.6259145736694336, "answer_score": null, "sibling_qid": "KOC-2023-01-1221-Q001", "sibling_text": "vaccum circuit breaker what is the dielectric strength of vaccum working", "sibling_family": "", "via": "sibling", "answer_title": "How do VCB and SF6 breakers work in a high-voltage system, and why are they used instead of an ACB?", "cross_family": false } ] }, { "qid": "MUM-2026-04-2116-Q001", "text": "Introduction. Why only one function. Number of attempts. Company, etc.", "family": "Status & Introduction", "subtopic": "Exam Status", "tid": "MUM-2026-04-2116", "tray": "new", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.46129465103149414, "sibling_score": 0.46129465103149414, "answer_score": null, "sibling_qid": "MUM-2026-03-0813-Q001", "sibling_text": "type of ship why only one function", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "SG-055-B-003", "score": 0.41903409361839294, "sibling_score": 0.41903409361839294, "answer_score": null, "sibling_qid": "KOL-2020-02-1527-Q002", "sibling_text": "single failur criteria", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Redundancy and the single-failure requirement (50% / 100%)", "cross_family": true }, { "answer_id": "LLC-SUR-POA-3-FINAL-001", "score": 0.40292730927467346, "sibling_score": 0.40292730927467346, "answer_score": null, "sibling_qid": "MUM-2025-09-0469-Q005", "sibling_text": "condition of assignment few x questions then said we will switch to other fn", "sibling_family": "", "via": "sibling", "answer_title": "Conditions of assignment of freeboard", "cross_family": false } ] }, { "qid": "MUM-2026-04-2669-Q004", "text": "■ Bottom platform flooding, actions.?", "family": "Auxiliary Equipment", "subtopic": "General Auxiliary Machinery", "tid": "MUM-2026-04-2669", "tray": "new", "candidates": [ { "answer_id": "CAS-ESTOP-001", "score": 0.5848401784896851, "sibling_score": 0.5848401784896851, "answer_score": 0.37686357498168943, "sibling_qid": "KOL-2019-03-3227-Q004", "sibling_text": "e r flooding action", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Engine-room flooding / rapidly rising bilges — immediate action as 2/E", "cross_family": true }, { "answer_id": "DDHSC-004", "score": 0.5427151918411255, "sibling_score": 0.5427151918411255, "answer_score": null, "sibling_qid": "KOL-2019-11-3287-Q002", "sibling_text": "checks when flooding after dd", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "What checks are carried out after docking, and what are the first checks once the ship is out of dock?", "cross_family": true }, { "answer_id": "SEA-CHEST-006", "score": 0.5100923776626587, "sibling_score": 0.5100923776626587, "answer_score": null, "sibling_qid": "MUM-2026-01-2529-Q004", "sibling_text": "3 e raised engineer call and he s on bottom platform water has reached above bottom reason is leak has happened in common sea chest valve your action as 2e", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "2/E actions: leak, crack, fouling, stuck valve, valve-life", "cross_family": true } ] }, { "qid": "MUM-2026-04-2670-Q004", "text": "Nut bolt loosening frequently,reasons?What to do to prevent. What if I don’t have lock washer ?", "family": "Workshop & Welding", "subtopic": "Nut-Bolt Loosening / Locking Arrangements", "tid": "MUM-2026-04-2670", "tray": "review", "candidates": [ { "answer_id": "TBR-TT-P02-002", "score": 0.7472333312034607, "sibling_score": 0.7472333312034607, "answer_score": null, "sibling_qid": "MUM-2026-04-2670-Q003", "sibling_text": "nut bolt lossening frequently reasons what to do to prevent", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Checking tie rod tightness / slackness — stopped and running", "cross_family": false }, { "answer_id": "FB-COUP-001", "score": 0.6524289846420288, "sibling_score": 0.6524289846420288, "answer_score": null, "sibling_qid": "MUM-2026-09-3863-Q008", "sibling_text": "bolt getting loose how will you do and where else we use lock nut on ship", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What fitted bolts are, what they do, and where they sit onboard", "cross_family": true }, { "answer_id": "SPR-STERN-008", "score": 0.5947932004928589, "sibling_score": 0.5947932004928589, "answer_score": null, "sibling_qid": "MUM-2026-03-1306-Q014S6", "sibling_text": "fitted bolts why used", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Tail/intermediate shaft material, stresses, fitted bolts & arrangement", "cross_family": true } ] }, { "qid": "MUM-2026-04-2681-Q001", "text": "Status of written and oral", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2026-04-2681", "tray": "review", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.7607271075248718, "sibling_score": 0.7607271075248718, "answer_score": null, "sibling_qid": "MUM-2026-05-3187-Q001", "sibling_text": "status of other orals and written", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.546755313873291, "sibling_score": 0.546755313873291, "answer_score": null, "sibling_qid": "MUM-2026-05-2995-Q001", "sibling_text": "written and oral status type of ship and company", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": true }, { "answer_id": "AE-CRP-005", "score": 0.4280792772769928, "sibling_score": 0.4280792772769928, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q001", "sibling_text": "type of vessel engine make written and oral status", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": true } ] }, { "qid": "MUM-2026-04-2685-Q004", "text": "Preparations after receiving notice. Please say permission from bridge.", "family": "2-Stroke - Operations & Casualty", "subtopic": "Notice / One Hour Notice", "tid": "MUM-2026-04-2685", "tray": "new", "candidates": [ { "answer_id": "UMS-310-001", "score": 0.5283734798431396, "sibling_score": 0.5283734798431396, "answer_score": null, "sibling_qid": "KOC-2022-10-1203-Q005", "sibling_text": "ums requirements wants to hear me control on bridge", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a UMS ship and what does SOLAS require? (Part E, regs 46–53)", "cross_family": true }, { "answer_id": "DCB-OVH-002", "score": 0.4579577147960663, "sibling_score": 0.4579577147960663, "answer_score": null, "sibling_qid": "MUM-2017-01-2126-Q012", "sibling_text": "prepare for complete unit overhaul in detail", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Preparing for a complete unit overhaul or unit survey", "cross_family": false }, { "answer_id": "BCME-001", "score": 0.45248180627822876, "sibling_score": 0.45248180627822876, "answer_score": null, "sibling_qid": "KOL-2024-11-1957-Q002", "sibling_text": "tell me me operation from bridge don t tell engine starting procedure tell what all happens what all there on bridge how does operate and what happen when with bridge operation did you ever gone on bridge while staring from bridge have you seen how does happen", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Operating the main engine from the bridge — command, control transfer and telegraph response", "cross_family": true } ] }, { "qid": "MUM-2026-04-2686-Q003", "text": "unloader is stuck in open, discharge valve closed and relief valve lifting,piston ring worn out.", "family": "Refrigeration & AC", "subtopic": "Compressor Construction / Belt Drive / Compressor Troubleshooting", "tid": "MUM-2026-04-2686", "tray": "new", "candidates": [ { "answer_id": "CAP-CTRL-002", "score": 0.6270965933799744, "sibling_score": 0.6270965933799744, "answer_score": 0.5015938073396683, "sibling_qid": "KOL-2017-01-1267-Q002", "sibling_text": "refer compressor unloader working", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "CG-002 · How the cylinder-unloader mechanism works", "cross_family": false }, { "answer_id": "ACRV-001", "score": 0.6055921912193298, "sibling_score": 0.6055921912193298, "answer_score": null, "sibling_qid": "KOL-2024-07-1948-Q013", "sibling_text": "first stage relief valve leaking", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "First-stage relief valve lifting or leaking — reasons and checks", "cross_family": true }, { "answer_id": "PST-CSI-BF-015", "score": 0.6054802536964417, "sibling_score": 0.6054802536964417, "answer_score": null, "sibling_qid": "MUM-2025-12-2901-Q012", "sibling_text": "piston stuck in liner", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Why a piston seizes or sticks in the liner, and what you do about it", "cross_family": true } ] }, { "qid": "MUM-2026-04-2686-Q006", "text": "FWG not able to make enough fresh water Ans. Vacuum check,shell temp,ejector pump outlet pressure,and FWG outlet pressure.if conderser is choked", "family": "Auxiliary Equipment", "subtopic": "General Auxiliary Machinery", "tid": "MUM-2026-04-2686", "tray": "new", "candidates": [ { "answer_id": "VENT-HD-006", "score": 0.6171992421150208, "sibling_score": 0.6171992421150208, "answer_score": null, "sibling_qid": "MUM-2026-04-2686-Q004", "sibling_text": "fluctuation of gauges high outlet pressure at the discharge remove k liye pump down and then with the help of recovery bottle or imo vacuum pump will do it 2 3times", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Tank vent / air-pipe arrangement, and why tanks require ventilation", "cross_family": false }, { "answer_id": "FWG-RO-001", "score": 0.6154213547706604, "sibling_score": 0.6154213547706604, "answer_score": 0.5204816818237304, "sibling_qid": "MUM-2024-06-1081-Q006", "sibling_text": "fwg vaccum not coming", "sibling_family": "Fresh Water & Domestic Systems", "via": "sibling", "answer_title": "How is vacuum created in the FWG, why does it run under vacuum, and what if the vacuum will not come?", "cross_family": true }, { "answer_id": "VAC-COND-002", "score": 0.6047778129577637, "sibling_score": 0.6047778129577637, "answer_score": 0.5058775961399078, "sibling_qid": "CHE-2026-03-0497-Q009", "sibling_text": "copt vacuum condenser is not building up vacuum why", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Low vacuum, suction loss and failure to build vacuum — the reasons", "cross_family": true } ] }, { "qid": "MUM-2026-04-2687-Q001", "text": "Steering fail", "family": "Electrical - Protection & Relays", "subtopic": "Protection / Relays", "tid": "MUM-2026-04-2687", "tray": "review", "candidates": [ { "answer_id": "T038-P01-001", "score": 0.6923828125, "sibling_score": 0.6923828125, "answer_score": null, "sibling_qid": "MUM-2026-01-1905-Q001", "sibling_text": "trips of steering gear", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "What is a marine high-voltage system, and what counts as HV onboard?", "cross_family": false }, { "answer_id": "SG-055-B-003", "score": 0.6795402765274048, "sibling_score": 0.6795402765274048, "answer_score": null, "sibling_qid": "KOL-2019-03-1446-Q004", "sibling_text": "steering gear single failure concept", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Redundancy and the single-failure requirement (50% / 100%)", "cross_family": true }, { "answer_id": "STEER-055-A-004", "score": 0.6723712682723999, "sibling_score": 0.6723712682723999, "answer_score": null, "sibling_qid": "KOL-2022-03-0608-Q002", "sibling_text": "steering gear hydraulic failure", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Hydraulic faults — air, sluggish response, locking, leakage", "cross_family": true } ] }, { "qid": "MUM-2026-04-2953-Q005", "text": "Type of PLC battery.", "family": "Electrical - Electronics & Power Conversion", "subtopic": "PLC", "tid": "MUM-2026-04-2953", "tray": "review", "candidates": [ { "answer_id": "BATT-TYPE-001", "score": 0.8856469392776489, "sibling_score": 0.8856469392776489, "answer_score": 0.5150337874889374, "sibling_qid": "MUM-2026-07-3675-Q005", "sibling_text": "type of plc battery", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What type of battery is used onboard, and how do you select one?", "cross_family": false }, { "answer_id": "BDC-P01-03", "score": 0.7996372580528259, "sibling_score": 0.7996372580528259, "answer_score": null, "sibling_qid": "MUM-2026-04-2953-Q006", "sibling_text": "plc battery voltage", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Nickel-cadmium (alkaline) battery — construction, working and cell data", "cross_family": false }, { "answer_id": "EPC-P03-002", "score": 0.740313708782196, "sibling_score": 0.740313708782196, "answer_score": null, "sibling_qid": "MUM-2026-06-3531-Q010S2", "sibling_text": "plc battery how to change decider ques", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What are the components and parts of a PLC — including the memory types and what data is stored in each?", "cross_family": false } ] }, { "qid": "MUM-2026-04-2953-Q010", "text": "What is I doing?", "family": "Risk & Safety Management", "subtopic": "Risk Assessment / Management", "tid": "MUM-2026-04-2953", "tray": "new", "candidates": [ { "answer_id": "HT-A-001", "score": 0.4633374810218811, "sibling_score": 0.4633374810218811, "answer_score": null, "sibling_qid": "MUM-2026-03-2642-Q018", "sibling_text": "what does it do", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Heat treatment: what it is, the main methods, and why it is done", "cross_family": true }, { "answer_id": "VIB-BAL-A-001", "score": 0.457780122756958, "sibling_score": 0.457780122756958, "answer_score": null, "sibling_qid": "KOC-2025-08-2069-Q007", "sibling_text": "what do they do", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "VIB-A-01 — Engine vibration — what it is, its types and causes, and how it is controlled", "cross_family": true }, { "answer_id": "SEEMP-123-B-002", "score": 0.447081983089447, "sibling_score": 0.447081983089447, "answer_score": null, "sibling_qid": "KOL-2019-10-0333-Q004", "sibling_text": "eeoi eedi seemp what you do in seemp", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP in practice — implementation and energy-efficiency measures", "cross_family": true } ] }, { "qid": "MUM-2026-04-2955-Q009", "text": "■backup ring material", "family": "Workshop & Welding", "subtopic": "Welding / NDT / Materials", "tid": "MUM-2026-04-2955", "tray": "new", "candidates": [ { "answer_id": "GKT-MAT-004", "score": 0.5573694705963135, "sibling_score": 0.5573694705963135, "answer_score": 0.38231440782546994, "sibling_qid": "MUM-2026-07-3724-Q004", "sibling_text": "backup ring and o ring difference", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "O-ring versus back-up ring — what each does", "cross_family": false }, { "answer_id": "CYL-LINER-P04-005", "score": 0.4655533730983734, "sibling_score": 0.4655533730983734, "answer_score": null, "sibling_qid": "KOL-2021-04-1583-Q001", "sibling_text": "flame ring purpose material", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Anti-polishing / flame / fire ring — location, purpose, material", "cross_family": true }, { "answer_id": "OGEE-RING-001", "score": 0.45974886417388916, "sibling_score": 0.45974886417388916, "answer_score": null, "sibling_qid": "MUM-2026-07-3713-Q001", "sibling_text": "ogee ring function and material", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "The ogee ring: what it is, where it sits, its purpose, and how it's formed and connected", "cross_family": true } ] }, { "qid": "MUM-2026-04-2956-Q001", "text": "Ship sailed ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-04-2956", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8452964425086975, "sibling_score": 0.8452964425086975, "answer_score": null, "sibling_qid": "MUM-2026-04-1319-Q001", "sibling_text": "ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.6840856671333313, "sibling_score": 0.6840856671333313, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.6827657222747803, "sibling_score": 0.6827657222747803, "answer_score": null, "sibling_qid": "MUM-2026-02-1280-Q001", "sibling_text": "type of ship done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false } ] }, { "qid": "MUM-2026-04-2956-Q002", "text": "Type of engine ?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-04-2956", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.8002732396125793, "sibling_score": 0.8002732396125793, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.7925992608070374, "sibling_score": 0.7925992608070374, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-001", "score": 0.45173870921134945, "sibling_score": null, "answer_score": 0.45173870921134945, "sibling_qid": "", "sibling_text": "1 turbocharger type main engine vs generator engine compressor is centrifugal in both cases only the turbine type differs large slow speed main engine axial flow turbine single stage constant pressure system", "sibling_family": "", "via": "answer_title", "answer_title": "1. Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "MUM-2026-04-2956-Q003S6", "text": "⁠No spare spring onboard.what you do?", "family": "2-Stroke - Components (Other)", "subtopic": "Stuffing Box / Piston Rod Gland", "tid": "MUM-2026-04-2956", "tray": "review", "candidates": [ { "answer_id": "SB-PRG-B-002", "score": 0.8292868733406067, "sibling_score": 0.8292868733406067, "answer_score": 0.42566506564617157, "sibling_qid": "KOC-2026-02-2002-Q009", "sibling_text": "no spare spring onboard what you do", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Worn rings, springs, O-rings and no-spare actions", "cross_family": false }, { "answer_id": "SBPG-A-003", "score": 0.5814626812934875, "sibling_score": 0.5814626812934875, "answer_score": null, "sibling_qid": "KOC-2025-11-1971-Q032", "sibling_text": "what will you do if stuff box leakage is more and no spring spare onboard", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Stuffing box leakage — symptoms, drain-tank rise, running checks, source and post-assembly confirmation", "cross_family": false }, { "answer_id": "CYL-LINER-P03-005", "score": 0.5635272860527039, "sibling_score": 0.5635272860527039, "answer_score": null, "sibling_qid": "MUM-2025-11-1212-Q010", "sibling_text": "if you dont have spare liner then what will you do", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Spare cylinder liner — what checks and certificates before you fit it?", "cross_family": false } ] }, { "qid": "MUM-2026-04-2956-Q006", "text": "⁠Chief engineer gives u a critical job.What u will do first? How to supervise crew and explian how u plan?", "family": "Fault Diagnosis & 2/E Actions", "subtopic": "Fault Diagnosis / 2E Action", "tid": "MUM-2026-04-2956", "tray": "review", "candidates": [ { "answer_id": "ISM-2E-C-002", "score": 0.7731756567955017, "sibling_score": 0.7731756567955017, "answer_score": null, "sibling_qid": "KOC-2026-02-1998-Q015", "sibling_text": "chief engineer gives u a critical job what u will do first how to supervise crew and explian how u plan", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Crew care and response to a serious crew accident under ISM", "cross_family": true }, { "answer_id": "CAS-ESTOP-007", "score": 0.6094809770584106, "sibling_score": 0.6094809770584106, "answer_score": null, "sibling_qid": "MUM-2024-01-2219-Q001", "sibling_text": "immediate first actions as 2nd engineer", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Major machinery casualty — first actions and taking the ship to a safe port", "cross_family": true }, { "answer_id": "CRANE-ER-001", "score": 0.5954676270484924, "sibling_score": 0.5954676270484924, "answer_score": null, "sibling_qid": "MUM-2026-05-2998-Q004", "sibling_text": "just joined as a second eng and 20 days long sailing and at port you have m e decarb how will you make sure your er crane is working fine", "sibling_family": "Fault Diagnosis & 2/E Actions", "via": "sibling", "answer_title": "Pre-use safety, maintenance & certification checks on the ER crane", "cross_family": false } ] }, { "qid": "MUM-2026-04-2961-Q001", "text": "Name of engine", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-04-2961", "tray": "review", "candidates": [ { "answer_id": "ENG-NOM-005", "score": 0.7945489883422852, "sibling_score": 0.7945489883422852, "answer_score": 0.38684209287166593, "sibling_qid": "KOL-2026-09-4295-Q002", "sibling_text": "engine name and full form", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false }, { "answer_id": "MIP-264-003", "score": 0.7497029304504395, "sibling_score": 0.7497029304504395, "answer_score": null, "sibling_qid": "MUM-2026-01-1248-Q002", "sibling_text": "engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Calculate engine power: IHP and BHP, and where each is measured", "cross_family": false }, { "answer_id": "ETP-344-P03-001", "score": 0.7019950747489929, "sibling_score": 0.7019950747489929, "answer_score": null, "sibling_qid": "MUM-2026-07-3737-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false } ] }, { "qid": "MUM-2026-04-2961-Q003", "text": "What is this function Attempt", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2026-04-2961", "tray": "new", "candidates": [ { "answer_id": "IMO-CODES-P03-002", "score": 0.4549844264984131, "sibling_score": 0.4549844264984131, "answer_score": null, "sibling_qid": "MUM-2026-03-0815-Q003", "sibling_text": "which function", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": false }, { "answer_id": "CHK-330-001", "score": 0.3790382146835327, "sibling_score": 0.3790382146835327, "answer_score": null, "sibling_qid": "KOC-2022-04-1784-Q001", "sibling_text": "function of chock draw chock", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What is the purpose and function of main engine chocks?", "cross_family": true }, { "answer_id": "IGAT-583-004", "score": 0.375374972820282, "sibling_score": 0.375374972820282, "answer_score": null, "sibling_qid": "KOC-2021-07-0013-Q006", "sibling_text": "ig fail what action int", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "As Second Engineer, what actions do you take if the inert gas plant of a crude oil tanker is repeatedly tripping on IG high temperature?", "cross_family": true } ] }, { "qid": "MUM-2026-04-2985-Q004", "text": "Brittleness and relation with temperature ?", "family": "Lube Oil System", "subtopic": "Lube oil Properties", "tid": "MUM-2026-04-2985", "tray": "new", "candidates": [ { "answer_id": "DBT-490-003", "score": 0.6360719203948975, "sibling_score": 0.6360719203948975, "answer_score": 0.49082518517971035, "sibling_qid": "MUM-2026-06-3429-Q005", "sibling_text": "brittle ductile transition temp", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Ductile-to-brittle transition and transition temperature", "cross_family": true }, { "answer_id": "DBT-490-002", "score": 0.5766470432281494, "sibling_score": 0.5766470432281494, "answer_score": 0.4315989285707474, "sibling_qid": "MUM-2026-05-3207-Q002", "sibling_text": "brittle", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Explain brittle fracture", "cross_family": true }, { "answer_id": "CFF-P02-007", "score": 0.42531442046165463, "sibling_score": null, "answer_score": 0.42531442046165463, "sibling_qid": "", "sibling_text": "creep versus fatigue creep steady stress high temperature broadly 0 3 0 5 of melting temperature absolute representative material dependent time dependent progressive plastic strain eventual rupture three stages primary secondary tertiary fatigue cyclic fluctuating stress temperature not required cycle dependent crack initiation propagation", "sibling_family": "", "via": "answer_title", "answer_title": "Creep versus fatigue", "cross_family": false } ] }, { "qid": "MUM-2026-04-2986-Q004", "text": "AE LO sum oil consumption every day more what is the reasons he said exact quantity of oil every day ?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE CRANKCASE", "tid": "MUM-2026-04-2986", "tray": "new", "candidates": [ { "answer_id": "AEDEC-291-008", "score": 0.5330380797386169, "sibling_score": 0.5330380797386169, "answer_score": null, "sibling_qid": "MUM-2026-03-0999-Q008", "sibling_text": "ae lub oil consumption increased after overhauling reason and cross questions", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "8. Post-decarb abnormal running — overspeed, RPM, air-start, LO", "cross_family": false }, { "answer_id": "STHX-003", "score": 0.5250676870346069, "sibling_score": 0.5250676870346069, "answer_score": null, "sibling_qid": "MUM-2026-01-2907-Q009", "sibling_text": "generator lub oil daily 30litre consumption lub oil cooler testing procedure", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "STHX-03 — Pressure and leak testing", "cross_family": false }, { "answer_id": "CYL-LUB-A-002", "score": 0.5214329957962036, "sibling_score": 0.5214329957962036, "answer_score": null, "sibling_qid": "KOL-2024-11-3726-Q005", "sibling_text": "me lube oil consumption started increasing suddenly how do you find it initially why and how this happpens tried my best to perform he expecting us to say more and more", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Feed-rate control — quantity, timing and load/rpm-dependent dosing", "cross_family": true } ] }, { "qid": "MUM-2026-04-2990-Q005", "text": "MLC amendments ?", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2026-04-2990", "tray": "new", "candidates": [ { "answer_id": "IMO-CODES-P02-001", "score": 0.471052885055542, "sibling_score": 0.471052885055542, "answer_score": null, "sibling_qid": "KOC-2025-01-0515-Q002", "sibling_text": "msc108 new ammendments", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "IMO instruments: convention, code, protocol, amendment, regulation, resolution and rule", "cross_family": true }, { "answer_id": "MLC-WRH-B-010", "score": 0.446151465177536, "sibling_score": 0.446151465177536, "answer_score": null, "sibling_qid": "MUM-2025-11-0573-Q004", "sibling_text": "how are wages set under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "SEA, the CBA parties, and how wages are set — action on non-payment", "cross_family": false }, { "answer_id": "MLC-WRH-B-007", "score": 0.4419286847114563, "sibling_score": 0.4419286847114563, "answer_score": null, "sibling_qid": "MUM-2026-01-0701-Q002", "sibling_text": "detainable deficiency of mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false } ] }, { "qid": "MUM-2026-04-2991-Q001", "text": "Transomed bulkhead ?", "family": "SOLAS", "subtopic": "Stern Frame / Transom", "tid": "MUM-2026-04-2991", "tray": "new", "candidates": [ { "answer_id": "BSBH-420-002", "score": 0.623106837272644, "sibling_score": 0.623106837272644, "answer_score": null, "sibling_qid": "KOC-2026-01-0781-Q005", "sibling_text": "cross section of forward of bulk head", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Fore-end / forepeak construction forward of the collision bulkhead — members and cross-section", "cross_family": false }, { "answer_id": "BHD-TYPE-A-002", "score": 0.6156339049339294, "sibling_score": 0.6156339049339294, "answer_score": null, "sibling_qid": "MUM-2026-02-0740-Q003", "sibling_text": "different classes of bulkheads", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "A-class and B-class fire bulkheads — A-60, B-15 and where they are found", "cross_family": false }, { "answer_id": "BHD-TYP-C-004", "score": 0.6152480840682983, "sibling_score": 0.6152480840682983, "answer_score": null, "sibling_qid": "KOC-2025-12-0741-Q004", "sibling_text": "what is wash bulkhead in transverse direction", "sibling_family": "", "via": "sibling", "answer_title": "Wash (swash) bulkhead — purpose and how it works", "cross_family": false } ] }, { "qid": "MUM-2026-04-2991-Q002", "text": "Ism and ISO ?", "family": "ISM Code", "subtopic": "TQM / Quality Management", "tid": "MUM-2026-04-2991", "tray": "new", "candidates": [ { "answer_id": "WIDAS-SMK-007", "score": 0.6360085606575012, "sibling_score": 0.6360085606575012, "answer_score": null, "sibling_qid": "MUM-2026-03-0855-Q003", "sibling_text": "diff between iso ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Smoke sampling line — testing, confirming clear, and what is in the tube", "cross_family": false }, { "answer_id": "ISM-ELEM-002", "score": 0.5745640397071838, "sibling_score": 0.5745640397071838, "answer_score": 0.3093206286430359, "sibling_qid": "MUM-2026-08-3833-Q002", "sibling_text": "ism code", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the ISM Code?", "cross_family": false }, { "answer_id": "ISM-SMC-B-001", "score": 0.5493088960647583, "sibling_score": 0.5493088960647583, "answer_score": null, "sibling_qid": "KOL-2019-02-0259-Q005", "sibling_text": "ism doc smc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "SMC — purpose, contents, issue and validity", "cross_family": false } ] }, { "qid": "MUM-2026-04-2991-Q007", "text": "Difference between ism and iso ?", "family": "ISM Code", "subtopic": "TQM / Quality Management", "tid": "MUM-2026-04-2991", "tray": "review", "candidates": [ { "answer_id": "WIDAS-SMK-007", "score": 0.6885884404182434, "sibling_score": 0.6885884404182434, "answer_score": null, "sibling_qid": "MUM-2026-03-0855-Q003", "sibling_text": "diff between iso ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Smoke sampling line — testing, confirming clear, and what is in the tube", "cross_family": false }, { "answer_id": "ISM-AUD-P02-002", "score": 0.5352197289466858, "sibling_score": 0.5352197289466858, "answer_score": null, "sibling_qid": "MUM-2025-10-0519-Q004", "sibling_text": "what is ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM Code — what it is, purpose, objectives and structure", "cross_family": false }, { "answer_id": "ISM-DPA-002", "score": 0.5237349271774292, "sibling_score": 0.5237349271774292, "answer_score": null, "sibling_qid": "KOC-2023-03-0172-Q004", "sibling_text": "ism who is responsible for ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "DPA basis : which convention, which code, and who is responsible for ISM", "cross_family": false } ] }, { "qid": "MUM-2026-04-3030-Q001", "text": "Type of ship ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-04-3030", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8362626433372498, "sibling_score": 0.8362626433372498, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8015266060829163, "sibling_score": 0.8015266060829163, "answer_score": 0.5469691485166549, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8002626895904541, "sibling_score": 0.8002626895904541, "answer_score": 0.5215309828519821, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2026-04-3030-Q002", "text": "Mlc amendments ?", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2026-04-3030", "tray": "new", "candidates": [ { "answer_id": "IMO-CODES-P02-001", "score": 0.47105294466018677, "sibling_score": 0.47105294466018677, "answer_score": null, "sibling_qid": "KOC-2025-01-0515-Q002", "sibling_text": "msc108 new ammendments", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "IMO instruments: convention, code, protocol, amendment, regulation, resolution and rule", "cross_family": true }, { "answer_id": "MLC-WRH-B-010", "score": 0.446151465177536, "sibling_score": 0.446151465177536, "answer_score": null, "sibling_qid": "MUM-2025-11-0573-Q004", "sibling_text": "how are wages set under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "SEA, the CBA parties, and how wages are set — action on non-payment", "cross_family": false }, { "answer_id": "MLC-WRH-B-007", "score": 0.4419287443161011, "sibling_score": 0.4419287443161011, "answer_score": null, "sibling_qid": "MUM-2026-01-0701-Q002", "sibling_text": "detainable deficiency of mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false } ] }, { "qid": "MUM-2026-04-3030-Q008", "text": "Which function appearing for ?", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2026-04-3030", "tray": "review", "candidates": [ { "answer_id": "IMO-CODES-P03-002", "score": 0.7692258954048157, "sibling_score": 0.7692258954048157, "answer_score": null, "sibling_qid": "MUM-2026-03-0815-Q003", "sibling_text": "which function", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": false }, { "answer_id": "CHK-RM-001", "score": 0.544377326965332, "sibling_score": 0.544377326965332, "answer_score": null, "sibling_qid": "KOL-2025-05-3783-Q007", "sibling_text": "function of chock", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What are chocks? Function, types, where fitted and how placed — which have the biggest area, and how does the bedplate connect to the hull?", "cross_family": true }, { "answer_id": "CHK-330-001", "score": 0.5441716313362122, "sibling_score": 0.5441716313362122, "answer_score": null, "sibling_qid": "KOC-2022-05-1785-Q007", "sibling_text": "function of chock", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What is the purpose and function of main engine chocks?", "cross_family": true } ] }, { "qid": "MUM-2026-04-3030-Q009", "text": "Other function condition ?", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2026-04-3030", "tray": "new", "candidates": [ { "answer_id": "IMO-CODES-P03-002", "score": 0.6137006878852844, "sibling_score": 0.6137006878852844, "answer_score": null, "sibling_qid": "MUM-2026-03-0815-Q003", "sibling_text": "which function", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": false }, { "answer_id": "LLC-SUR-POA-3-FINAL-001", "score": 0.592373788356781, "sibling_score": 0.592373788356781, "answer_score": null, "sibling_qid": "MUM-2025-09-0469-Q005", "sibling_text": "condition of assignment few x questions then said we will switch to other fn", "sibling_family": "", "via": "sibling", "answer_title": "Conditions of assignment of freeboard", "cross_family": false }, { "answer_id": "COC-002", "score": 0.5716853737831116, "sibling_score": 0.5716853737831116, "answer_score": null, "sibling_qid": "KOL-2016-12-0036-Q002", "sibling_text": "condition of class condition assessignment", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the difference between a Condition of Class and a Condition of Assignment?", "cross_family": true } ] }, { "qid": "MUM-2026-04-3031-Q005", "text": "MLC amendments ?", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2026-04-3031", "tray": "new", "candidates": [ { "answer_id": "IMO-CODES-P02-001", "score": 0.471052885055542, "sibling_score": 0.471052885055542, "answer_score": null, "sibling_qid": "KOC-2025-01-0515-Q002", "sibling_text": "msc108 new ammendments", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "IMO instruments: convention, code, protocol, amendment, regulation, resolution and rule", "cross_family": true }, { "answer_id": "MLC-WRH-B-010", "score": 0.446151465177536, "sibling_score": 0.446151465177536, "answer_score": null, "sibling_qid": "MUM-2025-11-0573-Q004", "sibling_text": "how are wages set under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "SEA, the CBA parties, and how wages are set — action on non-payment", "cross_family": false }, { "answer_id": "MLC-WRH-B-007", "score": 0.4419287145137787, "sibling_score": 0.4419287145137787, "answer_score": null, "sibling_qid": "MUM-2026-01-0701-Q002", "sibling_text": "detainable deficiency of mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false } ] }, { "qid": "MUM-2026-05-2977-Q002", "text": "Purpose of filter Circuit ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Electronic Circuits / Filters", "tid": "MUM-2026-05-2977", "tray": "new", "candidates": [ { "answer_id": "EPC-P02-06", "score": 0.6085366606712341, "sibling_score": 0.6085366606712341, "answer_score": 0.3717924430966377, "sibling_qid": "CHE-2025-08-0269-Q005", "sibling_text": "define harmonic filter", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What are harmonics, where does the high voltage / distortion come from, and what is a harmonic filter — define, use and where fitted?", "cross_family": false }, { "answer_id": "TC-A-009", "score": 0.5896562933921814, "sibling_score": 0.5896562933921814, "answer_score": null, "sibling_qid": "KOL-2019-07-2307-Q004", "sibling_text": "resonance and filter circuit", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "The LC circuit, resonance and the oscillator", "cross_family": false }, { "answer_id": "RAC-MAT-320-004", "score": 0.5431758165359497, "sibling_score": 0.5431758165359497, "answer_score": null, "sibling_qid": "KOL-2018-08-1403-Q007", "sibling_text": "filter in a c system", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "4. AHU maintenance, filters and pre-climate-change checks", "cross_family": true } ] }, { "qid": "MUM-2026-05-2994-Q001", "text": "Attempt 2 ?", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2026-05-2994", "tray": "new", "candidates": [ { "answer_id": "AV6-P05-01", "score": 0.501102864742279, "sibling_score": 0.501102864742279, "answer_score": null, "sibling_qid": "KOC-2025-03-0558-Q007", "sibling_text": "seemp 2", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP Part II — IMO DCS plan and contents", "cross_family": true }, { "answer_id": "DUS-P1-01", "score": 0.48444265127182007, "sibling_score": 0.48444265127182007, "answer_score": null, "sibling_qid": "KOC-2025-02-1485-Q005", "sibling_text": "drychecks as 2e", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Drydock preparation as 2E — full workflow from office confirmation to entry", "cross_family": true }, { "answer_id": "LO-TEST-P01-005", "score": 0.4387510418891907, "sibling_score": 0.4387510418891907, "answer_score": null, "sibling_qid": "KOL-2018-04-1367-Q003", "sibling_text": "2 lo contaimination me", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Lube-oil properties, types and selection by duty", "cross_family": true } ] }, { "qid": "MUM-2026-05-2994-Q009", "text": "EGB fire , how to know, how to respond ?", "family": "Boilers - Operations & Firing", "subtopic": "Soot Blower / Economiser Fire", "tid": "MUM-2026-05-2994", "tray": "new", "candidates": [ { "answer_id": "UPT-FIRE-003", "score": 0.5698228478431702, "sibling_score": 0.5698228478431702, "answer_score": 0.3928846806287765, "sibling_qid": "KOC-2023-02-2038-Q008", "sibling_text": "egb fire what is your action internal paul sir no question", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Fire in the exhaust gas boiler or economiser — actions and instructions to the duty engineers", "cross_family": false }, { "answer_id": "UPT-FIRE-001", "score": 0.5695345401763916, "sibling_score": 0.5695345401763916, "answer_score": 0.36291768997907636, "sibling_qid": "KOC-2024-02-1835-Q004", "sibling_text": "4 e has informed you that uptake fire has occured what will be your action as 2 e", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "The 4/E reports an uptake fire — your actions as 2/E", "cross_family": false }, { "answer_id": "SIH-FIRE-001", "score": 0.5297015905380249, "sibling_score": 0.5297015905380249, "answer_score": 0.36505261808633804, "sibling_qid": "MUM-2026-02-2548-Q002", "sibling_text": "egb fire what is symptoms", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "How will you identify an economiser / EGB fire — indications, symptoms and control?", "cross_family": false } ] }, { "qid": "MUM-2026-05-2995-Q008", "text": "⁠DC generator taking load procedure ?", "family": "Electrical - Generator & Alternator", "subtopic": "Load Sharing Imbalance", "tid": "MUM-2026-05-2995", "tray": "new", "candidates": [ { "answer_id": "SYNC-C-001", "score": 0.605335533618927, "sibling_score": 0.605335533618927, "answer_score": null, "sibling_qid": "KOC-2026-09-2168-Q011", "sibling_text": "generator taking on load in manual", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Paralleling generators — procedure, conditions and practical checks", "cross_family": false }, { "answer_id": "BDC-P02-04", "score": 0.5697267651557922, "sibling_score": 0.5697267651557922, "answer_score": null, "sibling_qid": "CHE-2025-12-0318-Q001", "sibling_text": "dc loads", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "The ship's 24 V DC system — how it is produced, why DC, and what it supplies", "cross_family": true }, { "answer_id": "SYNC-C-002", "score": 0.5547716021537781, "sibling_score": 0.5547716021537781, "answer_score": null, "sibling_qid": "KOC-2025-01-1472-Q004", "sibling_text": "if synchroncope not working how will you take generator on load", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Synchronising without a synchroscope — lamp, voltmeter and alternative methods", "cross_family": false } ] }, { "qid": "MUM-2026-05-2997-Q001", "text": "No of attempts ?", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2026-05-2997", "tray": "new", "candidates": [ { "answer_id": "CHAIN-TENS-A-003", "score": 0.542289674282074, "sibling_score": 0.542289674282074, "answer_score": null, "sibling_qid": "MUM-2026-02-2546-Q006", "sibling_text": "6 repeat", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "Chain Tightening Procedure — MC / MC-C / ME", "cross_family": false }, { "answer_id": "CTRL-TL-010", "score": 0.45433032512664795, "sibling_score": 0.45433032512664795, "answer_score": null, "sibling_qid": "KOL-2018-12-2250-Q004", "sibling_text": "4 failsafematic", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Pneumatic control: nozzle-flapper, DP, actuators and fail-safe", "cross_family": true }, { "answer_id": "RISK-RA-D-002", "score": 0.4488348960876465, "sibling_score": 0.4488348960876465, "answer_score": null, "sibling_qid": "MUM-2024-02-0162-Q007", "sibling_text": "u tried level best risk is not able to control what will u do", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "", "cross_family": true } ] }, { "qid": "MUM-2026-05-2998-Q002", "text": "TEV malfunction and no spare onboard, how to run refer?", "family": "Refrigeration & AC", "subtopic": "TEV / TXV", "tid": "MUM-2026-05-2998", "tray": "review", "candidates": [ { "answer_id": "TEV-TXV-005", "score": 0.6894164681434631, "sibling_score": 0.6894164681434631, "answer_score": null, "sibling_qid": "MUM-2026-05-3265-Q012", "sibling_text": "tev faulty no spare what to check", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Throttling process and superheat control across the TEV", "cross_family": false }, { "answer_id": "TEV-TXV-007", "score": 0.681036651134491, "sibling_score": 0.681036651134491, "answer_score": null, "sibling_qid": "MUM-2026-05-3238-Q005", "sibling_text": "tev not working and no spare what to do", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Faulty TEV in a meat/fish room with no spare — diagnosis and management", "cross_family": false }, { "answer_id": "TC-CS-P01-007", "score": 0.5347935557365417, "sibling_score": 0.5347935557365417, "answer_score": 0.4268077403306961, "sibling_qid": "KOC-2025-02-1901-Q004", "sibling_text": "if t c fails how to run engine", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "G·Running the engine with a turbocharger out of service", "cross_family": true } ] }, { "qid": "MUM-2026-05-2998-Q003", "text": "How will you calibrate torque wrench onboard?", "family": "Gauges & Tools", "subtopic": "Pressure Gauge Calibration", "tid": "MUM-2026-05-2998", "tray": "review", "candidates": [ { "answer_id": "MICR-002", "score": 0.7892056107521057, "sibling_score": 0.7892056107521057, "answer_score": 0.45225852131843564, "sibling_qid": "MUM-2026-05-2998-Q007", "sibling_text": "how will you calibrate torque wrench onboard", "sibling_family": "Gauges & Tools", "via": "sibling", "answer_title": "Zero setting, calibration, error check and trueness", "cross_family": false }, { "answer_id": "MICR-003", "score": 0.6250727772712708, "sibling_score": 0.6250727772712708, "answer_score": null, "sibling_qid": "MUM-2026-02-2580-Q005", "sibling_text": "how to check the tool is properly calibrated", "sibling_family": "Gauges & Tools", "via": "sibling", "answer_title": "Cylinder liner calibration with the inside micrometer", "cross_family": false }, { "answer_id": "TPL-SENS-A-002", "score": 0.6203051209449768, "sibling_score": 0.6203051209449768, "answer_score": null, "sibling_qid": "MUM-2026-05-3155-Q011", "sibling_text": "how to calibrate pressure gauge onboard after testing how we calibrate exactly", "sibling_family": "Gauges & Tools", "via": "sibling", "answer_title": "Pressure transmitter / transducer / switch working and calibration", "cross_family": false } ] }, { "qid": "MUM-2026-05-2998-Q006", "text": "Cast iron valve stem cracked, repair?", "family": "Workshop & Welding", "subtopic": "Cast Iron Welding", "tid": "MUM-2026-05-2998", "tray": "review", "candidates": [ { "answer_id": "LH-ELEC-006", "score": 0.7156274914741516, "sibling_score": 0.7156274914741516, "answer_score": 0.5374553203582764, "sibling_qid": "MUM-2025-12-0992-Q012", "sibling_text": "valve broken from bridge how to repair i said to salvage from a old same sized valve he shouting then i said by welding again asking cast iron how to weld lh electrode explained", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "6. How would you approach a cast-iron valve repair when the examiner probes welding and low-hydrogen electrodes?", "cross_family": false }, { "answer_id": "WBS-C-005", "score": 0.6651749014854431, "sibling_score": 0.6651749014854431, "answer_score": null, "sibling_qid": "MUM-2026-03-2617-Q005", "sibling_text": "bolier main steam line had a 1 inch crack after main steam stop valve how to go about repairs", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Crack and leak repair — deck plate, steam line, air receiver and other shipboard cracks", "cross_family": false }, { "answer_id": "METAL-LOCK-003", "score": 0.6011034846305847, "sibling_score": 0.6011034846305847, "answer_score": 0.5368139654397964, "sibling_qid": "MUM-2025-05-0277-Q020", "sibling_text": "cage of main cooling sea water pump valve has crack no spare on board how to repair", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Cold repair of cracked cast-iron parts: liner, pump/valve cage, loose bearing seat", "cross_family": false } ] }, { "qid": "MUM-2026-05-2998-Q008", "text": "Just joined as a Second Eng. and 20 days long sailing and at port you have M.E decarb, how will you make sure your ER crane is working fine. Load test definition and load tests limits for various SWL", "family": "Fault Diagnosis & 2/E Actions", "subtopic": "Fault Diagnosis / 2E Action", "tid": "MUM-2026-05-2998", "tray": "review", "candidates": [ { "answer_id": "CRANE-ER-001", "score": 0.7442991137504578, "sibling_score": 0.7442991137504578, "answer_score": 0.5383676767349242, "sibling_qid": "MUM-2026-05-2998-Q004", "sibling_text": "just joined as a second eng and 20 days long sailing and at port you have m e decarb how will you make sure your er crane is working fine", "sibling_family": "Fault Diagnosis & 2/E Actions", "via": "sibling", "answer_title": "Pre-use safety, maintenance & certification checks on the ER crane", "cross_family": false }, { "answer_id": "ERC-345-004", "score": 0.6845196485519409, "sibling_score": 0.6845196485519409, "answer_score": null, "sibling_qid": "MUM-2025-11-2496-Q003", "sibling_text": "swl test of engine room crane", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Load test, SWL and survey", "cross_family": true }, { "answer_id": "WIND-CRN-P01-004", "score": 0.6790809035301208, "sibling_score": 0.6790809035301208, "answer_score": null, "sibling_qid": "KOC-2024-07-1373-Q010", "sibling_text": "er crane load test", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Crane load test & securing in heavy weather", "cross_family": true } ] }, { "qid": "MUM-2026-05-2998-Q009", "text": "cast iron valve stem cracked, repair?", "family": "Workshop & Welding", "subtopic": "Cast Iron Welding", "tid": "MUM-2026-05-2998", "tray": "review", "candidates": [ { "answer_id": "LH-ELEC-006", "score": 0.7156276106834412, "sibling_score": 0.7156276106834412, "answer_score": 0.5374553710222244, "sibling_qid": "MUM-2025-12-0992-Q012", "sibling_text": "valve broken from bridge how to repair i said to salvage from a old same sized valve he shouting then i said by welding again asking cast iron how to weld lh electrode explained", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "6. How would you approach a cast-iron valve repair when the examiner probes welding and low-hydrogen electrodes?", "cross_family": false }, { "answer_id": "WBS-C-005", "score": 0.6651749014854431, "sibling_score": 0.6651749014854431, "answer_score": null, "sibling_qid": "MUM-2026-03-2617-Q005", "sibling_text": "bolier main steam line had a 1 inch crack after main steam stop valve how to go about repairs", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Crack and leak repair — deck plate, steam line, air receiver and other shipboard cracks", "cross_family": false }, { "answer_id": "METAL-LOCK-003", "score": 0.6011034846305847, "sibling_score": 0.6011034846305847, "answer_score": 0.5368139654397964, "sibling_qid": "MUM-2025-05-0277-Q020", "sibling_text": "cage of main cooling sea water pump valve has crack no spare on board how to repair", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Cold repair of cracked cast-iron parts: liner, pump/valve cage, loose bearing seat", "cross_family": false } ] }, { "qid": "MUM-2026-05-2998-Q012", "text": "How to check the life shelf of belt ?", "family": "Refrigeration & AC", "subtopic": "Compressor Construction / Belt Drive / Compressor Troubleshooting", "tid": "MUM-2026-05-2998", "tray": "new", "candidates": [ { "answer_id": "REEF-COMP-005", "score": 0.5157199501991272, "sibling_score": 0.5157199501991272, "answer_score": null, "sibling_qid": "MUM-2025-03-2278-Q002", "sibling_text": "how will you know refrigeration compressor belt is old need to change", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "V-belt drive on reefer compressors — why, and checking condition, alignment, tension, replacement", "cross_family": false }, { "answer_id": "DRG-B-013", "score": 0.4607890844345093, "sibling_score": 0.4607890844345093, "answer_score": null, "sibling_qid": "KOL-2019-08-0322-Q002", "sibling_text": "2 lifeboat davit inspection n checks after 10 20 yrs", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "The test and examination regime — and what PSC looks at", "cross_family": true }, { "answer_id": "CYL-LINER-P03-007", "score": 0.4601080119609833, "sibling_score": 0.4601080119609833, "answer_score": null, "sibling_qid": "KOL-2021-12-3501-Q005", "sibling_text": "10 year old liner checks", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Cylinder liner checks at overhaul, decarb and under-piston inspection", "cross_family": true } ] }, { "qid": "MUM-2026-05-2998-Q015", "text": "Load test definition and load tests limits for various SWL. Asked about dynamometer", "family": "NDT & Material Testing", "subtopic": "Sweep Test", "tid": "MUM-2026-05-2998", "tray": "new", "candidates": [ { "answer_id": "LBT-TEST-B-001", "score": 0.6053327918052673, "sibling_score": 0.6053327918052673, "answer_score": null, "sibling_qid": "MUM-2022-12-0076-Q002", "sibling_text": "l b maintenance and dynamic load test proof load how much", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat/davit load-test proof loads and test conditions", "cross_family": true }, { "answer_id": "CFF-P02-002", "score": 0.5985375046730042, "sibling_score": 0.5985375046730042, "answer_score": null, "sibling_qid": "KOL-2020-11-1565-Q008", "sibling_text": "endurance limit how to test", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "The S-N curve and the endurance (fatigue) limit", "cross_family": false }, { "answer_id": "LB-SDT-A-001", "score": 0.5774097442626953, "sibling_score": 0.5774097442626953, "answer_score": 0.39929164350032803, "sibling_qid": "CHE-2026-08-0672-Q004", "sibling_text": "dynamic and static load test", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat static and dynamic test — purpose and procedure", "cross_family": true } ] }, { "qid": "MUM-2026-05-2999-Q001", "text": "New fuel taken CFPP value is high what will happen and what will you do to rectify ?", "family": "MARPOL - General & Compliance", "subtopic": "Bunker Catfines", "tid": "MUM-2026-05-2999", "tray": "new", "candidates": [ { "answer_id": "CATF-438-003", "score": 0.587356448173523, "sibling_score": 0.587356448173523, "answer_score": 0.4556231141090393, "sibling_qid": "MUM-2026-07-3759-Q008", "sibling_text": "action to take if cat fines in fuel are high", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Bunker analysis shows high or excess cat fines — what is your action?", "cross_family": true }, { "answer_id": "BDI-469-001", "score": 0.5594345927238464, "sibling_score": 0.5594345927238464, "answer_score": null, "sibling_qid": "MUM-2024-10-2774-Q007", "sibling_text": "density of fuel is changed what to be done", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "New bunker density is higher or different from the previous fuel — your actions", "cross_family": false }, { "answer_id": "BCAT-004", "score": 0.5392417311668396, "sibling_score": 0.5392417311668396, "answer_score": null, "sibling_qid": "KOC-2025-10-1061-Q009", "sibling_text": "problem with fuel oil hot corrosion va na ratio cold corrosion cat fines wear and tear x iso standard catfine limit engine maker recomended limit how to reduce", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "BCAT-04. Fuel-oil problem: hot corrosion, cold corrosion and cat-fine wear — limits and reduction measures", "cross_family": false } ] }, { "qid": "MUM-2026-05-2999-Q003", "text": "Supports in boiler ?", "family": "Boilers - Construction & Components", "subtopic": "Boiler Construction / Supports", "tid": "MUM-2026-05-2999", "tray": "review", "candidates": [ { "answer_id": "FURN-REF-001", "score": 0.6771114468574524, "sibling_score": 0.6771114468574524, "answer_score": null, "sibling_qid": "CHE-2026-08-3886-Q008", "sibling_text": "boiler refractory material support", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Boiler refractory — materials, types, composition and acidic / basic refractory", "cross_family": false }, { "answer_id": "BLR-TUBE-P01-001", "score": 0.6460915803909302, "sibling_score": 0.6460915803909302, "answer_score": 0.4350407838821411, "sibling_qid": "KOL-2017-03-3041-Q001", "sibling_text": "how boiler tubes r supported", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "01. Attaching, fitting and supporting boiler tubes", "cross_family": false }, { "answer_id": "SH-332-005", "score": 0.6321002244949341, "sibling_score": 0.6321002244949341, "answer_score": null, "sibling_qid": "KOL-2025-07-1999-Q005", "sibling_text": "attemperator in boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Desuperheater / attemperator: what, why, and superheat control", "cross_family": false } ] }, { "qid": "MUM-2026-05-2999-Q006", "text": "struts ?", "family": "General Marine Engineering", "subtopic": "", "tid": "MUM-2026-05-2999", "tray": "new", "candidates": [ { "answer_id": "SHELL-PLT-B-002", "score": 0.45906680822372437, "sibling_score": 0.45906680822372437, "answer_score": null, "sibling_qid": "KOC-2026-02-0804-Q007S2", "sibling_text": "strakes", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Stealer plate and strake nesting", "cross_family": true }, { "answer_id": "FWFB-P02-006", "score": 0.4235783815383911, "sibling_score": 0.4235783815383911, "answer_score": null, "sibling_qid": "KOL-2021-11-0577-Q002", "sibling_text": "stringer", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Stringers and stiffeners", "cross_family": true }, { "answer_id": "IMO-5PIL-001", "score": 0.4154213070869446, "sibling_score": 0.4154213070869446, "answer_score": null, "sibling_qid": "MUM-2025-11-0606-Q004", "sibling_text": "imo strucure", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Structure of IMO — the main organs", "cross_family": true } ] }, { "qid": "MUM-2026-05-3000-Q008", "text": "types of safety valve ,", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2026-05-3000", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.8207661509513855, "sibling_score": 0.8207661509513855, "answer_score": null, "sibling_qid": "MUM-2026-09-3885-Q006", "sibling_text": "all types of safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACRV-005", "score": 0.7906745076179504, "sibling_score": 0.7906745076179504, "answer_score": 0.565886914730072, "sibling_qid": "MUM-2026-06-3617-Q007", "sibling_text": "safety valve and relief valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": false }, { "answer_id": "SCAV-323-P02-008", "score": 0.5370450437068939, "sibling_score": null, "answer_score": 0.5370450437068939, "sibling_qid": "", "sibling_text": "safeties and relief arrangements for the scavenge space hazard oily deposits blow past air scavenge fire explosion relief valve door fitted per the maker s design scavenge air receiver or cylinder section spring loaded cup spring lifts at permitted overpressure self closing to prevent air re entry", "sibling_family": "", "via": "answer_title", "answer_title": "Safeties and relief arrangements for the scavenge space", "cross_family": false } ] }, { "qid": "MUM-2026-05-3002-Q002", "text": "Type of bed plate ?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Bedplate / A-Frame", "tid": "MUM-2026-05-3002", "tray": "review", "candidates": [ { "answer_id": "FWFB-P02-007", "score": 0.7539970278739929, "sibling_score": 0.7539970278739929, "answer_score": null, "sibling_qid": "MUM-2026-03-2952-Q007", "sibling_text": "what type of bedplate", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Transverse and longitudinal girders: arrangement and purpose", "cross_family": false }, { "answer_id": "BED-CHOCK-001", "score": 0.5777239799499512, "sibling_score": 0.5777239799499512, "answer_score": null, "sibling_qid": "MUM-2023-08-0952-Q004", "sibling_text": "how to fix bed plate on ship", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "How is the main-engine bedplate fixed to the ship's structure?", "cross_family": false }, { "answer_id": "CHK-RM-001", "score": 0.526606559753418, "sibling_score": 0.526606559753418, "answer_score": 0.40075593292713163, "sibling_qid": "KOL-2018-10-1428-Q003", "sibling_text": "how bedplate is connected to hull", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What are chocks? Function, types, where fitted and how placed — which have the biggest area, and how does the bedplate connect to the hull?", "cross_family": false } ] }, { "qid": "MUM-2026-05-3002-Q002S2", "text": "Draw bed plate for your engine ?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Bedplate / A-Frame", "tid": "MUM-2026-05-3002", "tray": "new", "candidates": [ { "answer_id": "ETP-344-P01-008", "score": 0.5969594120979309, "sibling_score": 0.5969594120979309, "answer_score": null, "sibling_qid": "MUM-2026-06-3525-Q003", "sibling_text": "what are the check and testing done on bed plate while running of an engine", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Verifying power — shop test, test bed, sea trial", "cross_family": false }, { "answer_id": "FWFB-P02-007", "score": 0.5788615942001343, "sibling_score": 0.5788615942001343, "answer_score": null, "sibling_qid": "MUM-2026-03-2952-Q007", "sibling_text": "what type of bedplate", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Transverse and longitudinal girders: arrangement and purpose", "cross_family": false }, { "answer_id": "TR-TB-PA-001", "score": 0.573077380657196, "sibling_score": 0.573077380657196, "answer_score": null, "sibling_qid": "KOL-2024-04-3686-Q003", "sibling_text": "how firing forces transmitted tie rods arrangement how fitted how crankshaft rests on bedplate how bed plate girders fitted", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Function of tie rods and the firing-load path", "cross_family": false } ] }, { "qid": "MUM-2026-05-3002-Q008", "text": "Swedish standard ?", "family": "", "subtopic": "Double Bottom / Torsion Box", "tid": "MUM-2026-05-3002", "tray": "new", "candidates": [ { "answer_id": "BWMS-STD-B-001", "score": 0.44059938192367554, "sibling_score": 0.44059938192367554, "answer_score": null, "sibling_qid": "KOL-2023-01-0712-Q003", "sibling_text": "d1 standerd", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "D-1 Ballast Water Exchange Standard & the exchange methods", "cross_family": false }, { "answer_id": "BWM-D1D2-P03-001", "score": 0.4390452802181244, "sibling_score": 0.4390452802181244, "answer_score": null, "sibling_qid": "KOC-2026-05-0044-Q006", "sibling_text": "d2 standard", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Regulation D-2 — ballast water performance / discharge standardHigh", "cross_family": false }, { "answer_id": "BWMS-STD-B-002", "score": 0.4388662576675415, "sibling_score": 0.4388662576675415, "answer_score": null, "sibling_qid": "KOL-2022-06-0646-Q007", "sibling_text": "d2 standard", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "D-2 Ballast Water Performance Standard & how compliance is checked / sampled", "cross_family": false } ] }, { "qid": "MUM-2026-05-3003-Q003", "text": "Bus bar short circuit what will happen on generator ?", "family": "Electrical - Generator & Alternator", "subtopic": "Diode Short / Open", "tid": "MUM-2026-05-3003", "tray": "review", "candidates": [ { "answer_id": "CONT-317-003", "score": 0.6667153239250183, "sibling_score": 0.6667153239250183, "answer_score": null, "sibling_qid": "MUM-2026-03-2019-Q001", "sibling_text": "motor came after rewinding no all terminals signs erased ho will you connect one generator losing power and other gaining power what is the reason bus bar shorcircuited but short circuit trip didn t activate what will happen now ip 55", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Continuity to confirm terminal identity after overhaul or rewind", "cross_family": true }, { "answer_id": "DIODESO-001", "score": 0.6431732177734375, "sibling_score": 0.6431732177734375, "answer_score": null, "sibling_qid": "MUM-2025-09-1640-Q001", "sibling_text": "two gen running and suddenly one diode open ckt short ckt", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Two alternators in parallel — one rotating rectifier diode goes short circuit. What happens, what if it goes open instead, and how do you know which it is?", "cross_family": false }, { "answer_id": "SYNC-D-003", "score": 0.6416377425193787, "sibling_score": 0.6416377425193787, "answer_score": null, "sibling_qid": "KOC-2022-11-1211-Q005", "sibling_text": "sync generator with busbar checks reason for each", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Correct paralleling — checks, the synchroscope & phase angle, voltage trim, interlocks", "cross_family": false } ] }, { "qid": "MUM-2026-05-3077-Q004", "text": "Rudder carrier bearing ?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "MUM-2026-05-3077", "tray": "review", "candidates": [ { "answer_id": "TRS-002", "score": 0.7669825553894043, "sibling_score": 0.7669825553894043, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "PRE-TEN-001", "score": 0.7641605734825134, "sibling_score": 0.7641605734825134, "answer_score": null, "sibling_qid": "MUM-2026-06-3504-Q007", "sibling_text": "rudder carrier bearing removal procedure", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Pre-stressing and pre-tensioning in main-engine bolting", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.7133362293243408, "sibling_score": 0.7133362293243408, "answer_score": 0.4952517956495285, "sibling_qid": "CHE-2026-02-0110-Q006", "sibling_text": "how rudder weight is carried key ans i said carrier bearing how it carrying explain", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false } ] }, { "qid": "MUM-2026-05-3079-Q001", "text": "What type of engine ?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-05-3079", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.7484862208366394, "sibling_score": 0.7484862208366394, "answer_score": null, "sibling_qid": "KOL-2026-03-2048-Q001", "sibling_text": "type of engine done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.7446883320808411, "sibling_score": 0.7446883320808411, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-001", "score": 0.43638697564601897, "sibling_score": null, "answer_score": 0.43638697564601897, "sibling_qid": "", "sibling_text": "1 turbocharger type main engine vs generator engine compressor is centrifugal in both cases only the turbine type differs large slow speed main engine axial flow turbine single stage constant pressure system", "sibling_family": "", "via": "answer_title", "answer_title": "1. Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "MUM-2026-05-3079-Q007S2", "text": "How you will ensure unit is at TDC ?", "family": "2-Stroke - Operations & Casualty", "subtopic": "Decarb / Overhaul Prep", "tid": "MUM-2026-05-3079", "tray": "new", "candidates": [ { "answer_id": "ANG-ENC-003", "score": 0.456618070602417, "sibling_score": 0.456618070602417, "answer_score": null, "sibling_qid": "KOL-2026-05-0080-Q003", "sibling_text": "angle encoder how many how position is seen in angle encoder ans green light at tsa a when no1 unit is at tdc", "sibling_family": "", "via": "sibling", "answer_title": "Working principle: sensing crank angle, speed and direction", "cross_family": false }, { "answer_id": "ANG-ENC-004", "score": 0.4225353002548218, "sibling_score": null, "answer_score": 0.4225353002548218, "sibling_qid": "", "sibling_text": "checks testing calibration and maintenance offset tdc referencing is the critical calibration set at standstill on turning gear reference against the flywheel target pickup per the maker procedure", "sibling_family": "", "via": "answer_title", "answer_title": "Checks, testing, calibration and maintenance", "cross_family": false }, { "answer_id": "STERN-TUBE-TAIL-SHAFT-002", "score": 0.41609692573547363, "sibling_score": 0.41609692573547363, "answer_score": null, "sibling_qid": "MUM-2022-12-0076-Q003", "sibling_text": "propeller drop how to take why it s taken why first unit brought to tdc", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "", "cross_family": true } ] }, { "qid": "MUM-2026-05-3079-Q008", "text": "Hair line method ?", "family": "NDT & Material Testing", "subtopic": "NDT Methods (MPI/DPT/UT/RT)", "tid": "MUM-2026-05-3079", "tray": "new", "candidates": [ { "answer_id": "MARGIN-LINE-001", "score": 0.4404792785644531, "sibling_score": 0.4404792785644531, "answer_score": null, "sibling_qid": "KOC-2025-03-0551-Q008", "sibling_text": "margin line", "sibling_family": "", "via": "sibling", "answer_title": "What is the margin line, and what is its purpose?", "cross_family": false }, { "answer_id": "SHAFT-ALN-001", "score": 0.27565590441226956, "sibling_score": null, "answer_score": 0.27565590441226956, "sibling_qid": "", "sibling_text": "shaft alignment methods and procedure aim a continuous fair shaft centreline through every bearing acceptable bearing reactions slope and bending moment no negative or overloaded bearing reference line methods taut piano wire correct for wire sag optical telescope or laser laser optical avoid the sag error", "sibling_family": "", "via": "answer_title", "answer_title": "Shaft alignment — methods and procedure", "cross_family": false }, { "answer_id": "CXH-BRG-FINAL-1-011", "score": 0.2633750393986702, "sibling_score": null, "answer_score": 0.2633750393986702, "sibling_qid": "", "sibling_text": "checking crosshead pin smoothness surface finish check finish and condition not only dimension visual under good light scoring scratches pitting discoloration", "sibling_family": "", "via": "answer_title", "answer_title": "Checking crosshead pin smoothness / surface finish", "cross_family": false } ] }, { "qid": "MUM-2026-05-3080-Q001", "text": "Type of ship ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-05-3080", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.837036669254303, "sibling_score": 0.837036669254303, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.801808774471283, "sibling_score": 0.801808774471283, "answer_score": 0.5473707109689713, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8005447387695312, "sibling_score": 0.8005447387695312, "answer_score": 0.5217237085103988, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2026-05-3081-Q011", "text": "Why do we need exhaust grouping ?", "family": "2-Stroke - Exhaust, Valve & Starting Air", "subtopic": "Exhaust Manifold / Uptakes", "tid": "MUM-2026-05-3081", "tray": "new", "candidates": [ { "answer_id": "EXHV-297-007", "score": 0.4430401921272278, "sibling_score": 0.4430401921272278, "answer_score": null, "sibling_qid": "MUM-2026-06-3420-Q004", "sibling_text": "exhaust manifold especial arrangement for grouping of suction from each cylinder in me", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust manifold / gas receiver — construction, joints, inspection & temperature locations", "cross_family": false }, { "answer_id": "AE-HOT-BLOW-006", "score": 0.42437130212783813, "sibling_score": 0.42437130212783813, "answer_score": null, "sibling_qid": "KOL-2025-01-3737-Q004", "sibling_text": "dg all units exhaust high reason", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Auxiliary engine all units exhaust temperature high — reasons", "cross_family": true }, { "answer_id": "EXV-P02-001", "score": 0.3949921131134033, "sibling_score": 0.3949921131134033, "answer_score": null, "sibling_qid": "KOC-2024-09-0928-Q009", "sibling_text": "exhaust v v overhaul with diagrams for v v and seat with templates what to do if g2 0", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve overhaul & dismantling — procedure and precautions", "cross_family": false } ] }, { "qid": "MUM-2026-05-3083-Q001", "text": "Type of ship sailed (LPG) ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-05-3083", "tray": "review", "candidates": [ { "answer_id": "LPG-LNG-009", "score": 0.8312968015670776, "sibling_score": 0.8312968015670776, "answer_score": 0.47640029788017274, "sibling_qid": "CHE-2026-04-0164-Q001", "sibling_text": "type of ship sailed lpg carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Gas-carrier fundamentals and ship-specific traps", "cross_family": false }, { "answer_id": "IGC-GAS-004", "score": 0.7238988876342773, "sibling_score": 0.7238988876342773, "answer_score": null, "sibling_qid": "KOL-2025-08-1014-Q002", "sibling_text": "type of ship sailed lpg classification of gas carriers of as per igc code", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Ship-type classification under the IGC Code — 1G / 2G / 2PG / 3G", "cross_family": true }, { "answer_id": "COT-01", "score": 0.7061535716056824, "sibling_score": 0.7061535716056824, "answer_score": null, "sibling_qid": "KOC-2026-04-0892-Q003", "sibling_text": "type of ship sailed tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Oil-tanker types, definitions and cargo capability", "cross_family": false } ] }, { "qid": "MUM-2026-05-3085-Q003", "text": "What you understand by Djibouti code of conduct and area it is applicable ?", "family": "Other Conventions", "subtopic": "Djibouti Code", "tid": "MUM-2026-05-3085", "tray": "new", "candidates": [ { "answer_id": "BWMS-C-008", "score": 0.38979005813598633, "sibling_score": 0.38979005813598633, "answer_score": null, "sibling_qid": "KOC-2025-07-0628-Q008", "sibling_text": "g7 guidelines explain", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "G7 — risk assessment for regulation A-4 exemptions", "cross_family": false }, { "answer_id": "ISM-DPA-002", "score": 0.3845801055431366, "sibling_score": 0.3845801055431366, "answer_score": 0.27733627557754514, "sibling_qid": "MUM-2022-12-0076-Q005", "sibling_text": "dpa which convention and which code duties", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "DPA basis : which convention, which code, and who is responsible for ISM", "cross_family": true }, { "answer_id": "BWM-D1D2-P04-001", "score": 0.38405171036720276, "sibling_score": 0.38405171036720276, "answer_score": null, "sibling_qid": "KOC-2026-02-0833-Q015", "sibling_text": "explain bwms d section and the d 2 standards also explain g7 guidelines", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "D-2 standard and G7 — risk assessment for Regulation A-4 exemptions", "cross_family": false } ] }, { "qid": "MUM-2026-05-3085-Q004", "text": "Difference between ISM and ISO ?", "family": "ISM Code", "subtopic": "TQM / Quality Management", "tid": "MUM-2026-05-3085", "tray": "review", "candidates": [ { "answer_id": "WIDAS-SMK-007", "score": 0.6892796754837036, "sibling_score": 0.6892796754837036, "answer_score": null, "sibling_qid": "MUM-2026-03-0855-Q003", "sibling_text": "diff between iso ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Smoke sampling line — testing, confirming clear, and what is in the tube", "cross_family": false }, { "answer_id": "ISM-AUD-P02-002", "score": 0.5361968278884888, "sibling_score": 0.5361968278884888, "answer_score": null, "sibling_qid": "MUM-2025-10-0519-Q004", "sibling_text": "what is ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM Code — what it is, purpose, objectives and structure", "cross_family": false }, { "answer_id": "ISM-DPA-002", "score": 0.5246526598930359, "sibling_score": 0.5246526598930359, "answer_score": null, "sibling_qid": "KOC-2023-03-0172-Q004", "sibling_text": "ism who is responsible for ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "DPA basis : which convention, which code, and who is responsible for ISM", "cross_family": false } ] }, { "qid": "MUM-2026-05-3086-Q001", "text": "Djibouti code of conduct ?", "family": "Other Conventions", "subtopic": "Djibouti Code", "tid": "MUM-2026-05-3086", "tray": "new", "candidates": [ { "answer_id": "ISM-DPA-002", "score": 0.36470335721969604, "sibling_score": 0.36470335721969604, "answer_score": 0.2387252300977707, "sibling_qid": "MUM-2022-12-0076-Q005", "sibling_text": "dpa which convention and which code duties", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "DPA basis : which convention, which code, and who is responsible for ISM", "cross_family": true }, { "answer_id": "NAIROBI-WRC-001", "score": 0.3596349358558655, "sibling_score": 0.3596349358558655, "answer_score": null, "sibling_qid": "MUM-2026-04-0928-Q005", "sibling_text": "what nairobi convention", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Explain the Nairobi International Convention on the Removal of Wrecks, 2007", "cross_family": false }, { "answer_id": "BWMS-C-010", "score": 0.3484165072441101, "sibling_score": 0.3484165072441101, "answer_score": null, "sibling_qid": "MUM-2026-04-2959-Q006", "sibling_text": "g9 guidelines", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "G9 — approval of systems using active substances; G8 vs G9", "cross_family": false } ] }, { "qid": "MUM-2026-05-3129-Q001", "text": "Vessel type ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-05-3129", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8377512097358704, "sibling_score": 0.8377512097358704, "answer_score": null, "sibling_qid": "MUM-2026-06-3384-Q001", "sibling_text": "type of vessel", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.7563543915748596, "sibling_score": 0.7563543915748596, "answer_score": null, "sibling_qid": "CHE-2026-02-0481-Q001", "sibling_text": "type of vessels sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7519385814666748, "sibling_score": 0.7519385814666748, "answer_score": 0.5119491636753082, "sibling_qid": "CHE-2026-02-0109-Q001", "sibling_text": "type of ship explain what type is your vessel explain their type and difference", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "MUM-2026-05-3129-Q002", "text": "Engine type ?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-05-3129", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.8324224948883057, "sibling_score": 0.8324224948883057, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.8043279051780701, "sibling_score": 0.8043279051780701, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-001", "score": 0.463600355386734, "sibling_score": null, "answer_score": 0.463600355386734, "sibling_qid": "", "sibling_text": "1 turbocharger type main engine vs generator engine compressor is centrifugal in both cases only the turbine type differs large slow speed main engine axial flow turbine single stage constant pressure system", "sibling_family": "", "via": "answer_title", "answer_title": "1. Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "MUM-2026-05-3132-Q002", "text": "Aluminium stell welding crankshaft deflection?", "family": "Workshop & Welding", "subtopic": "Welding / NDT / Materials", "tid": "MUM-2026-05-3132", "tray": "new", "candidates": [ { "answer_id": "CRK-DEFL-001", "score": 0.6090654730796814, "sibling_score": 0.6090654730796814, "answer_score": 0.4651713937520981, "sibling_qid": "MUM-2023-07-2738-Q003", "sibling_text": "reason for taking crank web deflection", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Purpose, timing and scope of crankshaft deflection", "cross_family": true }, { "answer_id": "AE-CSB-346-005", "score": 0.6059055924415588, "sibling_score": 0.6059055924415588, "answer_score": 0.48712291717529294, "sibling_qid": "MUM-2025-02-2271-Q002", "sibling_text": "ae crankshaft deflection in detail", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Checking auxiliary-engine crankshaft deflection", "cross_family": true }, { "answer_id": "CRK-DEFL-005", "score": 0.6002925634384155, "sibling_score": 0.6002925634384155, "answer_score": null, "sibling_qid": "KOL-2017-01-3026-Q004", "sibling_text": "crankshaft deflection starting from safeties to procedure to tabulation of results and interpretation of deflection curve", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Plotting and interpreting the deflection curve", "cross_family": true } ] }, { "qid": "MUM-2026-05-3132-Q005", "text": "Which function appearing for-- only fn 6 ie marine engineering practices", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2026-05-3132", "tray": "new", "candidates": [ { "answer_id": "PCD-P01-02", "score": 0.5854021906852722, "sibling_score": 0.5854021906852722, "answer_score": null, "sibling_qid": "KOL-2022-03-1665-Q004", "sibling_text": "turbine pump in main sea water line fns 6", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Types and classification of pumps on board — and which pump for which duty", "cross_family": true }, { "answer_id": "DRG-B-006", "score": 0.5724031329154968, "sibling_score": 0.5724031329154968, "answer_score": null, "sibling_qid": "KOL-2018-09-0217-Q006", "sibling_text": "lifeboat fall maintenance function 6", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Falls — maintenance, end-for-ending and renewal", "cross_family": true }, { "answer_id": "COT-P02-10", "score": 0.5359213948249817, "sibling_score": 0.5359213948249817, "answer_score": null, "sibling_qid": "KOC-2025-10-2079-Q013", "sibling_text": "ig system latest amendments got function 6 only", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "State and explain the latest statutory amendments affecting tanker inert-gas systems, including applicability and practical changes on board.", "cross_family": true } ] }, { "qid": "MUM-2026-05-3132-Q009", "text": "Rudder has a crack how u will know and what repairs to carry, specific type of welding in rudder?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "MUM-2026-05-3132", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.7484527230262756, "sibling_score": 0.7484527230262756, "answer_score": null, "sibling_qid": "MUM-2026-04-2689-Q008", "sibling_text": "rudder crack repair", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "HULL-DD-001", "score": 0.6711486577987671, "sibling_score": 0.6711486577987671, "answer_score": 0.5110524117946624, "sibling_qid": "KOL-2020-11-3360-Q004", "sibling_text": "hull crack repair i told the procedure followed by welding then he asked if crack occurs in the welding again then how will you repair", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "1. Hull plate / shell-weld crack repair in drydock", "cross_family": true }, { "answer_id": "WBS-C-006", "score": 0.6699312925338745, "sibling_score": 0.6699312925338745, "answer_score": 0.5200162321329117, "sibling_qid": "KOL-2025-11-4070-Q006", "sibling_text": "rudder welding", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Propeller and rudder repair — grading the damage and the Class-approved route", "cross_family": true } ] }, { "qid": "MUM-2026-05-3132-Q010", "text": "A frame has a crack why it has appeared , reasons, how to repair it, why to avoid welding, what is proportional band why it is used?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Bedplate / A-Frame", "tid": "MUM-2026-05-3132", "tray": "new", "candidates": [ { "answer_id": "FWFB-P02-008", "score": 0.5922877192497253, "sibling_score": 0.5922877192497253, "answer_score": null, "sibling_qid": "MUM-2026-05-3081-Q001", "sibling_text": "a frame crack reason", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Forces and stresses on transverse girders; action for cracks", "cross_family": false }, { "answer_id": "WBS-C-005", "score": 0.5169081687927246, "sibling_score": 0.5169081687927246, "answer_score": null, "sibling_qid": "MUM-2026-01-1238-Q007", "sibling_text": "if crack on deck and need to do welding which welding to do process what are the checks to do welding how to ensure welding is satisfactory", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Crack and leak repair — deck plate, steam line, air receiver and other shipboard cracks", "cross_family": true }, { "answer_id": "HULL-DD-001", "score": 0.5151596665382385, "sibling_score": 0.5151596665382385, "answer_score": null, "sibling_qid": "KOL-2020-11-3360-Q004", "sibling_text": "hull crack repair i told the procedure followed by welding then he asked if crack occurs in the welding again then how will you repair", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "1. Hull plate / shell-weld crack repair in drydock", "cross_family": true } ] }, { "qid": "MUM-2026-05-3133-Q002", "text": "Unloader working in MAC?", "family": "Air Compressor", "subtopic": "MAC / Air Compressor", "tid": "MUM-2026-05-3133", "tray": "review", "candidates": [ { "answer_id": "UNL-330-002", "score": 0.834966242313385, "sibling_score": 0.834966242313385, "answer_score": null, "sibling_qid": "MUM-2026-07-3782-Q002", "sibling_text": "unloader working in mac", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Explain the working of the main air compressor unloader.", "cross_family": false }, { "answer_id": "UNL-330-001", "score": 0.6317446827888489, "sibling_score": 0.6317446827888489, "answer_score": 0.21691212058067322, "sibling_qid": "KOL-2021-10-3465-Q003", "sibling_text": "function of unloader", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "What is the function of the main air compressor unloader?", "cross_family": false }, { "answer_id": "CAP-CTRL-002", "score": 0.5854963064193726, "sibling_score": 0.5854963064193726, "answer_score": null, "sibling_qid": "KOL-2025-03-1970-Q008", "sibling_text": "unloader working", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "CG-002 · How the cylinder-unloader mechanism works", "cross_family": true } ] }, { "qid": "MUM-2026-05-3133-Q004", "text": "Purifier vertical and horizontal shaft alignment?", "family": "Purifier & Centrifuges", "subtopic": "Purifier Operation / Bowl", "tid": "MUM-2026-05-3133", "tray": "review", "candidates": [ { "answer_id": "PURIF-BOWL-P02-003", "score": 0.8078671097755432, "sibling_score": 0.8078671097755432, "answer_score": null, "sibling_qid": "KOL-2023-04-3604-Q001", "sibling_text": "purifier vertical shaft alignment and checks how to ensure correct height of vertical shaft", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Vertical shaft, bowl height, bearings & load support — checks, adjustment, overhaul, renewal", "cross_family": false }, { "answer_id": "PURIF-172-001", "score": 0.6472756266593933, "sibling_score": 0.6472756266593933, "answer_score": null, "sibling_qid": "MUM-2025-05-2292-Q002", "sibling_text": "what is purpose of sheer pin in horizontal shaft of the purifier cant recollect more now", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Purifier not picking up speed — drive, clutch, brake, shear pin", "cross_family": false }, { "answer_id": "SHAFT-ALN-001", "score": 0.6412853002548218, "sibling_score": 0.6412853002548218, "answer_score": 0.5114948600530624, "sibling_qid": "KOC-2024-10-2056-Q015", "sibling_text": "alignment between crankshaft and tailshaft paul sir working of purifier desludging then about passages for water through purifier got fn6", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Shaft alignment — methods and procedure", "cross_family": true } ] }, { "qid": "MUM-2026-05-3134-Q003", "text": "ORB entry for LO?", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "MUM-2026-05-3134", "tray": "review", "candidates": [ { "answer_id": "OWS-ORB-006", "score": 0.8412734866142273, "sibling_score": 0.8412734866142273, "answer_score": null, "sibling_qid": "MUM-2026-03-0808-Q002", "sibling_text": "orb entry for lo", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "6. Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-002", "score": 0.5427935123443604, "sibling_score": 0.5427935123443604, "answer_score": null, "sibling_qid": "CHE-2024-10-0509-Q002", "sibling_text": "orb entries all in detail", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "The Oil Record Book Part I — purpose, the letter codes, and how entries are made", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-004", "score": 0.4715121388435364, "sibling_score": 0.4715121388435364, "answer_score": null, "sibling_qid": "MUM-2026-08-3831-Q008", "sibling_text": "bunker entry in orb", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Weekly ORB entries — the mandatory sludge retention record, the bunker entry, and what is voluntary", "cross_family": false } ] }, { "qid": "MUM-2026-05-3134-Q004", "text": "Shifting of LO Internally ORB entry ?", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "MUM-2026-05-3134", "tray": "review", "candidates": [ { "answer_id": "OWS-ORB-006", "score": 0.7035799622535706, "sibling_score": 0.7035799622535706, "answer_score": null, "sibling_qid": "MUM-2026-03-0808-Q002", "sibling_text": "orb entry for lo", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "6. Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-002", "score": 0.48013192415237427, "sibling_score": 0.48013192415237427, "answer_score": null, "sibling_qid": "CHE-2024-10-0509-Q002", "sibling_text": "orb entries all in detail", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "The Oil Record Book Part I — purpose, the letter codes, and how entries are made", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-004", "score": 0.4578772783279419, "sibling_score": 0.4578772783279419, "answer_score": null, "sibling_qid": "MUM-2026-08-3831-Q008", "sibling_text": "bunker entry in orb", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Weekly ORB entries — the mandatory sludge retention record, the bunker entry, and what is voluntary", "cross_family": false } ] }, { "qid": "MUM-2026-05-3136-Q001", "text": "What ships you sailed?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-05-3136", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.7181356549263, "sibling_score": 0.7181356549263, "answer_score": null, "sibling_qid": "CHE-2026-02-0478-Q004", "sibling_text": "this type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.6904000639915466, "sibling_score": 0.6904000639915466, "answer_score": null, "sibling_qid": "MUM-2026-03-2588-Q001", "sibling_text": "which ships u have done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.4055189773440361, "sibling_score": null, "answer_score": 0.4055189773440361, "sibling_qid": "", "sibling_text": "type a and type b ships how form and cargo set the freeboard", "sibling_family": "", "via": "answer_title", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "MUM-2026-05-3136-Q007", "text": "what types of ship?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-05-3136", "tray": "review", "candidates": [ { "answer_id": "LLST-AB-001", "score": 0.8268786668777466, "sibling_score": 0.8268786668777466, "answer_score": 0.5286797165870666, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.7845743298530579, "sibling_score": 0.7845743298530579, "answer_score": 0.519726687669754, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.7821314930915833, "sibling_score": 0.7821314930915833, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false } ] }, { "qid": "MUM-2026-05-3137-Q001", "text": "What is there to prevent aft damage of ship?", "family": "Ship Construction & Naval Architecture", "subtopic": "Damage Stability", "tid": "MUM-2026-05-3137", "tray": "new", "candidates": [ { "answer_id": "BHD-TYPE-B-001", "score": 0.5791152119636536, "sibling_score": 0.5791152119636536, "answer_score": null, "sibling_qid": "MUM-2026-07-3714-Q004", "sibling_text": "aft collision bulkhead", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Collision bulkhead — definition, location and SOLAS regulations", "cross_family": true }, { "answer_id": "BHD-TYP-C-002", "score": 0.5059826970100403, "sibling_score": 0.5059826970100403, "answer_score": 0.44235605001449585, "sibling_qid": "MUM-2026-04-3030-Q007", "sibling_text": "aft bulkhead", "sibling_family": "", "via": "sibling", "answer_title": "Aft (after peak) bulkhead — what it is and where it sits", "cross_family": false }, { "answer_id": "LRHR-A-001", "score": 0.503329873085022, "sibling_score": 0.503329873085022, "answer_score": null, "sibling_qid": "MUM-2024-08-0189-Q005", "sibling_text": "lifer aft requirements on ship", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "SOLAS requirement for liferafts on a cargo ship — number and total capacity", "cross_family": true } ] }, { "qid": "MUM-2026-05-3138-Q003", "text": "Material of tapper?", "family": "NDT & Material Testing", "subtopic": "Heat Treatment", "tid": "MUM-2026-05-3138", "tray": "new", "candidates": [ { "answer_id": "VTAP-006", "score": 0.5389101505279541, "sibling_score": 0.5389101505279541, "answer_score": 0.3644792795181274, "sibling_qid": "MUM-2026-04-1007-Q007", "sibling_text": "material and virtual tappet", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "What construction or material details may be asked alongside the virtual tappet?", "cross_family": true }, { "answer_id": "SGB-212-012", "score": 0.48628708720207214, "sibling_score": 0.48628708720207214, "answer_score": null, "sibling_qid": "KOC-2026-05-2137-Q005", "sibling_text": "propeller material", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Ship propeller material and composition", "cross_family": false }, { "answer_id": "BUNK-SAMP-004", "score": 0.47951066493988037, "sibling_score": 0.47951066493988037, "answer_score": null, "sibling_qid": "KOC-2025-02-2060-Q017", "sibling_text": "material", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Sample container, material, quantity, marking and bottles", "cross_family": true } ] }, { "qid": "MUM-2026-05-3138-Q003S2", "text": "Tapper ratio?", "family": "NDT & Material Testing", "subtopic": "Oil / Fuel Test", "tid": "MUM-2026-05-3138", "tray": "new", "candidates": [ { "answer_id": "BFS-257-004", "score": 0.5041606426239014, "sibling_score": 0.5041606426239014, "answer_score": null, "sibling_qid": "KOC-2025-02-1900-Q001", "sibling_text": "turn down ratio", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler burner turn-down ratio", "cross_family": true }, { "answer_id": "TDR-584-001", "score": 0.503471851348877, "sibling_score": 0.503471851348877, "answer_score": null, "sibling_qid": "KOL-2025-12-4076-Q005", "sibling_text": "turn down ratio", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "What is the turndown ratio of a marine boiler? Explain.", "cross_family": true }, { "answer_id": "LOF-359-001", "score": 0.3459988698363304, "sibling_score": null, "answer_score": 0.3459988698363304, "sibling_qid": "", "sibling_text": "beta ratio beta efficiency x particle count x m upstream particle count x m downstream efficiency 1 1 100 mathematical identity from the definition", "sibling_family": "", "via": "answer_title", "answer_title": "Beta Ratio / Beta Efficiency", "cross_family": false } ] }, { "qid": "MUM-2026-05-3140-Q001", "text": "Type of ship sailed?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-05-3140", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8459892868995667, "sibling_score": 0.8459892868995667, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8450009822845459, "sibling_score": 0.8450009822845459, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7928504943847656, "sibling_score": 0.7928504943847656, "answer_score": null, "sibling_qid": "CHE-2026-03-0253-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "MUM-2026-05-3142-Q001", "text": "Status of remaining functions including written?", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2026-05-3142", "tray": "new", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.6021336913108826, "sibling_score": 0.6021336913108826, "answer_score": null, "sibling_qid": "MUM-2026-05-3187-Q001", "sibling_text": "status of other orals and written", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": false }, { "answer_id": "IMO-CODES-P03-002", "score": 0.525915265083313, "sibling_score": 0.525915265083313, "answer_score": null, "sibling_qid": "MUM-2026-03-0815-Q003", "sibling_text": "which function", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": false }, { "answer_id": "A6-NSEC-003", "score": 0.47998911142349243, "sibling_score": 0.47998911142349243, "answer_score": null, "sibling_qid": "CHE-2024-10-0010-Q001", "sibling_text": "nox reduction methods got both functions finally cleared class", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "NOx — formation, limits & reduction (SCR / EGR)", "cross_family": true } ] }, { "qid": "MUM-2026-05-3142-Q007", "text": "Types of cams on engine?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Cam Profile / Camshaft", "tid": "MUM-2026-05-3142", "tray": "review", "candidates": [ { "answer_id": "FCAM-LEAD-P04-001", "score": 0.7671834826469421, "sibling_score": 0.7671834826469421, "answer_score": null, "sibling_qid": "MUM-2025-08-1162-Q008", "sibling_text": "type of cams in m e for fuel and exhaust", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel cam lead, cam profile, negative cam and cam slip", "cross_family": false }, { "answer_id": "CAM-437-001", "score": 0.691144585609436, "sibling_score": 0.691144585609436, "answer_score": null, "sibling_qid": "KOC-2026-01-1090-Q007", "sibling_text": "cam function internal gasket types got 6 4b repeat", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Function of the camshaft in a main (MC) engine", "cross_family": false }, { "answer_id": "CAM-437-002", "score": 0.6878436207771301, "sibling_score": 0.6878436207771301, "answer_score": 0.5350400179624557, "sibling_qid": "MUM-2025-05-1111-Q016", "sibling_text": "main engine cam operation", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Cam operation in the main engine", "cross_family": false } ] }, { "qid": "MUM-2026-05-3142-Q009", "text": "Hydraulic system for opening hatch cover mechanism?", "family": "", "subtopic": "Hatch Coaming", "tid": "MUM-2026-05-3142", "tray": "new", "candidates": [ { "answer_id": "HATCH-CVR-006", "score": 0.6396526098251343, "sibling_score": 0.6396526098251343, "answer_score": 0.5463831692934036, "sibling_qid": "CHE-2026-04-0169-Q003", "sibling_text": "how hatch cover is operate", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "How is a hatch cover operated?", "cross_family": false }, { "answer_id": "HYD-JACK-001", "score": 0.5941547751426697, "sibling_score": 0.5941547751426697, "answer_score": null, "sibling_qid": "KOC-2026-08-2162-Q006", "sibling_text": "hydraulic jack diagram", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Hydraulic jack — construction, components, sealing and basic working", "cross_family": false }, { "answer_id": "HYD-JACK-005", "score": 0.5939289331436157, "sibling_score": 0.5939289331436157, "answer_score": null, "sibling_qid": "KOC-2021-05-0938-Q011", "sibling_text": "hydraulic jack drawing and why we need to open half turn before using", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Purging air from a hydraulic jack or tool line before use", "cross_family": false } ] }, { "qid": "MUM-2026-05-3142-Q009S2", "text": "Mechanism for speed control of oil in opening/ closing this mechanism?", "family": "", "subtopic": "Hatch Coaming", "tid": "MUM-2026-05-3142", "tray": "new", "candidates": [ { "answer_id": "SLOWTURN-BT-001", "score": 0.5549854636192322, "sibling_score": 0.5549854636192322, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001S2", "sibling_text": "slow turning valve function in details", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Slow turning of the main engine — the slow-turning valve and the failure alarm", "cross_family": false }, { "answer_id": "WIND-CRN-P01-001", "score": 0.5424798130989075, "sibling_score": 0.5424798130989075, "answer_score": null, "sibling_qid": "CHE-2025-12-0316-Q001", "sibling_text": "speed modes in engine room over head crane and how speed in controlled", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Crane / winch motor speed control", "cross_family": false }, { "answer_id": "SYN-ASY-B-002", "score": 0.5413120985031128, "sibling_score": 0.5413120985031128, "answer_score": null, "sibling_qid": "KOC-2025-01-1463-Q006", "sibling_text": "syn motor speed control", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Synchronous speed, slip relation, and speed control", "cross_family": false } ] }, { "qid": "MUM-2026-05-3142-Q011", "text": "Oil mist box design?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "OMD / Oil Mist Detector", "tid": "MUM-2026-05-3142", "tray": "new", "candidates": [ { "answer_id": "CC-RELIEF-312-002", "score": 0.5895707607269287, "sibling_score": 0.5895707607269287, "answer_score": null, "sibling_qid": "MUM-2022-10-0943-Q005", "sibling_text": "oil mist box inspection", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Crankcase / camcase inspection — checks and contamination", "cross_family": true }, { "answer_id": "OMD-001", "score": 0.5743473172187805, "sibling_score": 0.5743473172187805, "answer_score": null, "sibling_qid": "KOC-2026-02-1101-Q014", "sibling_text": "oily mist detectors working", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "The OMD alarm sounds on your watch. What are your actions, the checks and crankcase inspection that follow, and what are the alarm levels?", "cross_family": false }, { "answer_id": "INCIN-005", "score": 0.570609450340271, "sibling_score": 0.570609450340271, "answer_score": 0.4174002051353454, "sibling_qid": "MUM-2026-05-3143-Q003", "sibling_text": "mist box what are the connection in mist box", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Components, blowers and the ‘mist box’ query", "cross_family": true } ] }, { "qid": "MUM-2026-05-3142-Q013", "text": "How refractory connected to boiler?", "family": "Boilers - Operations & Firing", "subtopic": "Boiler Operations", "tid": "MUM-2026-05-3142", "tray": "review", "candidates": [ { "answer_id": "FURN-REF-002", "score": 0.7303824424743652, "sibling_score": 0.7303824424743652, "answer_score": 0.5075245797634125, "sibling_qid": "MUM-2026-09-3950-Q007", "sibling_text": "how is refractory attached to the boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Boiler refractory patch-up, restoration, brick support and repair procedure", "cross_family": true }, { "answer_id": "BLR-TUBE-P01-003", "score": 0.6484313011169434, "sibling_score": 0.6484313011169434, "answer_score": null, "sibling_qid": "MUM-2022-04-0938-Q003", "sibling_text": "how tubes are connected to boiler said expanded and welded", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "02. Thermal expansion arrangements for boiler tubes", "cross_family": true }, { "answer_id": "FURN-REF-001", "score": 0.6262550354003906, "sibling_score": 0.6262550354003906, "answer_score": 0.478642076253891, "sibling_qid": "KOL-2017-05-1292-Q006", "sibling_text": "refractory material of boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Boiler refractory — materials, types, composition and acidic / basic refractory", "cross_family": true } ] }, { "qid": "MUM-2026-05-3145-Q001", "text": "Which type of ship?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-05-3145", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8232608437538147, "sibling_score": 0.8232608437538147, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8040839433670044, "sibling_score": 0.8040839433670044, "answer_score": 0.5257230192422867, "sibling_qid": "MUM-2026-02-0731-Q002", "sibling_text": "what type of ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7978020906448364, "sibling_score": 0.7978020906448364, "answer_score": 0.5401633083820343, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "MUM-2026-05-3145-Q002", "text": "Which type of engines(Said ME-C)?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-05-3145", "tray": "new", "candidates": [ { "answer_id": "MCC-MEB-P01-001", "score": 0.5895514488220215, "sibling_score": 0.5895514488220215, "answer_score": null, "sibling_qid": "MUM-2026-02-2576-Q003", "sibling_text": "engine type mc c", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "MC-C (\"Compact\") engine — design and the main constructional differences from MC", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.5487966537475586, "sibling_score": 0.5487966537475586, "answer_score": null, "sibling_qid": "MUM-2026-09-3915-Q001", "sibling_text": "type of engine me and ae", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false }, { "answer_id": "ETP-344-P03-001", "score": 0.5464978814125061, "sibling_score": 0.5464978814125061, "answer_score": null, "sibling_qid": "KOL-2026-03-2048-Q001", "sibling_text": "type of engine done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false } ] }, { "qid": "MUM-2026-05-3146-Q007", "text": "DIFF. BETWEEN ISO & ISM?", "family": "ISM Code", "subtopic": "TQM / Quality Management", "tid": "MUM-2026-05-3146", "tray": "review", "candidates": [ { "answer_id": "WIDAS-SMK-007", "score": 0.7405697703361511, "sibling_score": 0.7405697703361511, "answer_score": null, "sibling_qid": "MUM-2026-03-0855-Q003", "sibling_text": "diff between iso ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Smoke sampling line — testing, confirming clear, and what is in the tube", "cross_family": false }, { "answer_id": "FQCC-583-A-002", "score": 0.5104852914810181, "sibling_score": 0.5104852914810181, "answer_score": null, "sibling_qid": "MUM-2025-11-0988-Q010", "sibling_text": "iso 2024 gave comparison with iso 2017 finally coc", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "ISO 8217 — the standard, and what changed from 2017 to 2024", "cross_family": true }, { "answer_id": "ISMNC-003", "score": 0.5060852766036987, "sibling_score": 0.5060852766036987, "answer_score": 0.34756420850753783, "sibling_qid": "MUM-2026-05-3236-Q004", "sibling_text": "difference between conformity and major non conformity as per ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Differentiate between a major non-conformity and a non-conformity under the ISM Code.", "cross_family": false } ] }, { "qid": "MUM-2026-05-3147-Q001", "text": "Types of ship sailed?(LPG)?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-05-3147", "tray": "review", "candidates": [ { "answer_id": "LPG-LNG-009", "score": 0.8106185793876648, "sibling_score": 0.8106185793876648, "answer_score": 0.5158563673496246, "sibling_qid": "CHE-2026-04-0164-Q001", "sibling_text": "type of ship sailed lpg carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Gas-carrier fundamentals and ship-specific traps", "cross_family": false }, { "answer_id": "IGC-GAS-004", "score": 0.7219246625900269, "sibling_score": 0.7219246625900269, "answer_score": null, "sibling_qid": "KOL-2025-08-1014-Q002", "sibling_text": "type of ship sailed lpg classification of gas carriers of as per igc code", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Ship-type classification under the IGC Code — 1G / 2G / 2PG / 3G", "cross_family": true }, { "answer_id": "COT-01", "score": 0.6881402134895325, "sibling_score": 0.6881402134895325, "answer_score": null, "sibling_qid": "KOC-2026-04-0892-Q003", "sibling_text": "type of ship sailed tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Oil-tanker types, definitions and cargo capability", "cross_family": false } ] }, { "qid": "MUM-2026-05-3148-Q002", "text": "what is Djibouti code?", "family": "Other Conventions", "subtopic": "Djibouti Code", "tid": "MUM-2026-05-3148", "tray": "new", "candidates": [ { "answer_id": "BWM-D1D2-P04-002", "score": 0.4102913439273834, "sibling_score": 0.4102913439273834, "answer_score": null, "sibling_qid": "KOC-2022-01-0048-Q013", "sibling_text": "bwms code explain d1 d2 d4", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "D-2 standard and the BWMS Code (ex-G8) — type approval of treatment systems", "cross_family": false }, { "answer_id": "IGC-IGF-001", "score": 0.3891693651676178, "sibling_score": 0.3891693651676178, "answer_score": null, "sibling_qid": "KOL-2025-11-1119-Q003", "sibling_text": "igc code igf code", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "IGC Code vs IGF Code — what they are and the difference", "cross_family": false }, { "answer_id": "BWMS-A-001", "score": 0.38304102420806885, "sibling_score": 0.38304102420806885, "answer_score": null, "sibling_qid": "KOC-2022-02-1172-Q011", "sibling_text": "bwms code", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "The BWM Convention: what it is and why it is required", "cross_family": false } ] }, { "qid": "MUM-2026-05-3148-Q005", "text": "what is grey, white and black list?", "family": "Surveys - Statutory", "subtopic": "PSC / Flag / RO / CIC / MoU", "tid": "MUM-2026-05-3148", "tray": "new", "candidates": [ { "answer_id": "STCW-MAN-011", "score": 0.5190008282661438, "sibling_score": 0.5190008282661438, "answer_score": 0.28841207325458523, "sibling_qid": "KOL-2025-04-0929-Q008", "sibling_text": "white list", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is the White List under the STCW Convention?", "cross_family": true }, { "answer_id": "MATPROP-A-003", "score": 0.35428810119628906, "sibling_score": 0.35428810119628906, "answer_score": 0.28569681495428084, "sibling_qid": "KOL-2016-10-1241-Q002", "sibling_text": "white gray and nodular cast iron application and contents", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Cast iron: grey, white, nodular; versus cast steel", "cross_family": true }, { "answer_id": "A5-GARB-003", "score": 0.24526199400424956, "sibling_score": null, "answer_score": 0.24526199400424956, "sibling_qid": "", "sibling_text": "operational waste definition and discharge operational waste solid wastes slurries from maintenance operation cargo stowage handling includes hold external wash water cleaning agents additives excludes grey water bilge water discharges essential to ship operation", "sibling_family": "", "via": "answer_title", "answer_title": "Operational waste — definition and discharge", "cross_family": false } ] }, { "qid": "MUM-2026-05-3150-Q001", "text": "what is transom space?", "family": "SOLAS", "subtopic": "Stern Frame / Transom", "tid": "MUM-2026-05-3150", "tray": "review", "candidates": [ { "answer_id": "DUS-P5-03", "score": 0.6703867316246033, "sibling_score": 0.6703867316246033, "answer_score": null, "sibling_qid": "NOI-2026-09-0006-Q003", "sibling_text": "transom space", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Stern frame construction, cross-section and rudder-axis sketch", "cross_family": true }, { "answer_id": "PPS-230-004", "score": 0.49614596366882324, "sibling_score": 0.49614596366882324, "answer_score": null, "sibling_qid": "NOI-2026-09-0006-Q004", "sibling_text": "panting pounding arrangements in transom space", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Forward strengthening to resist pounding / slamming", "cross_family": true }, { "answer_id": "BSBH-420-002", "score": 0.49254855513572693, "sibling_score": 0.49254855513572693, "answer_score": null, "sibling_qid": "KOC-2026-01-0781-Q005", "sibling_text": "cross section of forward of bulk head", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Fore-end / forepeak construction forward of the collision bulkhead — members and cross-section", "cross_family": false } ] }, { "qid": "MUM-2026-05-3153-Q001", "text": "Why v belt in refer?", "family": "Refrigeration & AC", "subtopic": "Compressor Construction / Belt Drive / Compressor Troubleshooting", "tid": "MUM-2026-05-3153", "tray": "new", "candidates": [ { "answer_id": "REEF-COMP-005", "score": 0.5960368514060974, "sibling_score": 0.5960368514060974, "answer_score": 0.4563072293996811, "sibling_qid": "KOL-2021-02-3375-Q007", "sibling_text": "why v belt is used how many usually fitted what specifications are on that name it and explain", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "V-belt drive on reefer compressors — why, and checking condition, alignment, tension, replacement", "cross_family": false }, { "answer_id": "VFD-INV-P01-002", "score": 0.4017499089241028, "sibling_score": 0.4017499089241028, "answer_score": null, "sibling_qid": "KOC-2023-01-1227-Q005", "sibling_text": "vfd where used", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Where is a VFD used onboard, and why?", "cross_family": true }, { "answer_id": "CCSC-314-002", "score": 0.38838857412338257, "sibling_score": 0.38838857412338257, "answer_score": null, "sibling_qid": "KOL-2019-10-1492-Q008", "sibling_text": "capacity control refrigeration refrigerant charging why belt driven", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Compressor capacity control and the capacity controller", "cross_family": false } ] }, { "qid": "MUM-2026-05-3154-Q001", "text": "Butterfly valve seat type and material and why?", "family": "Auxiliary Equipment", "subtopic": "VALVES", "tid": "MUM-2026-05-3154", "tray": "new", "candidates": [ { "answer_id": "EXHV-P03-006", "score": 0.6281337738037109, "sibling_score": 0.6281337738037109, "answer_score": null, "sibling_qid": "MUM-2026-09-3892-Q010", "sibling_text": "exhaust valve seat material", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Exhaust valve materials — Stellite and Nimonic 80A: composition, use and why", "cross_family": false }, { "answer_id": "JCW-SYS-005", "score": 0.607840359210968, "sibling_score": 0.607840359210968, "answer_score": 0.4692485749721527, "sibling_qid": "MUM-2026-04-1319-Q003", "sibling_text": "why butterfly valve", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "What valve is used in the ME jacket cooling-water system - why butterfly and not gate, and where they are positioned", "cross_family": true }, { "answer_id": "GV-330-002", "score": 0.5866633653640747, "sibling_score": 0.5866633653640747, "answer_score": null, "sibling_qid": "KOC-2026-02-2005-Q006", "sibling_text": "butterfly valve overhaul", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Gate valve overhaul, checks & the stuck / not-operating valve", "cross_family": false } ] }, { "qid": "MUM-2026-05-3154-Q008", "text": "Second order moments compensator .. working?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Moments", "tid": "MUM-2026-05-3154", "tray": "review", "candidates": [ { "answer_id": "VIB-BAL-C-FINAL-1-001", "score": 0.654906153678894, "sibling_score": 0.654906153678894, "answer_score": 0.48170298933982847, "sibling_qid": "KOC-2024-11-1017-Q005", "sibling_text": "first order moment and second order moment moment compensator location", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "First- & Second-Order External Moments, Guide-Force Moments & Moment Compensators", "cross_family": true }, { "answer_id": "ETP-344-P03-009", "score": 0.45463136732578274, "sibling_score": null, "answer_score": 0.45463136732578274, "sibling_qid": "", "sibling_text": "moment compensator second order moment and counter rotating arrangement external unbalanced moments from the reciprocating rotating masses make the engine rock and can set up hull girder vibration if resonant first order moment acts in both vertical and horizontal planes at crank speed once per rev significant mainly on four cylinder engines", "sibling_family": "", "via": "answer_title", "answer_title": "Moment compensator, second-order moment and counter-rotating arrangement", "cross_family": false }, { "answer_id": "DROOP-005", "score": 0.3274450734257698, "sibling_score": null, "answer_score": 0.3274450734257698, "sibling_qid": "", "sibling_text": "compensation in a governor temporary droop for stability compensation temporary droop applied only during a transient then it resets purpose damp the overshoot hunt caused by engine inertia and power lag after a load change", "sibling_family": "", "via": "answer_title", "answer_title": "Compensation in a governor — temporary droop for stability", "cross_family": false } ] }, { "qid": "MUM-2026-05-3154-Q013", "text": "All Butterfly valves leaking from seat ,disc all okay u r in Dry Dock what do u do?", "family": "Auxiliary Equipment", "subtopic": "VALVES", "tid": "MUM-2026-05-3154", "tray": "new", "candidates": [ { "answer_id": "GV-330-002", "score": 0.6442761421203613, "sibling_score": 0.6442761421203613, "answer_score": 0.5130065202713012, "sibling_qid": "KOC-2026-02-2005-Q006", "sibling_text": "butterfly valve overhaul", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Gate valve overhaul, checks & the stuck / not-operating valve", "cross_family": false }, { "answer_id": "STERN-TUBE-P04-002", "score": 0.6404162645339966, "sibling_score": 0.6404162645339966, "answer_score": null, "sibling_qid": "KOC-2026-08-2163-Q014", "sibling_text": "in drydock you have replaced stern tube seals now do the stern tube integrity test", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Stern tube and seal integrity tests after survey and while underway", "cross_family": true }, { "answer_id": "COT-P03-11", "score": 0.6296225786209106, "sibling_score": 0.6296225786209106, "answer_score": null, "sibling_qid": "KOL-2025-09-1040-Q005", "sibling_text": "which types of valve in cargo line i said butterfly he said during discharging cargo valve started leaking what s your action how can you say from seeing only from where it is leaking lots of cross question", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Cargo-line valve arrangements — types, double block-and-bleed, three-way valves, and a valve leaking during discharge", "cross_family": true } ] }, { "qid": "MUM-2026-05-3155-Q001", "text": "Status of functions remaining?", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2026-05-3155", "tray": "new", "candidates": [ { "answer_id": "IMO-CODES-P03-002", "score": 0.5429562926292419, "sibling_score": 0.5429562926292419, "answer_score": null, "sibling_qid": "MUM-2026-03-0815-Q003", "sibling_text": "which function", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": false }, { "answer_id": "A6-NSEC-003", "score": 0.516120433807373, "sibling_score": 0.516120433807373, "answer_score": null, "sibling_qid": "CHE-2024-10-0010-Q001", "sibling_text": "nox reduction methods got both functions finally cleared class", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "NOx — formation, limits & reduction (SCR / EGR)", "cross_family": true }, { "answer_id": "CHAIN-TENS-C-001", "score": 0.49899691343307495, "sibling_score": 0.49899691343307495, "answer_score": null, "sibling_qid": "KOL-2021-10-1636-Q005", "sibling_text": "chain slackness check few question forget got function 4", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main-engine chain drive — how you know it is slack, and how you check and tighten it", "cross_family": true } ] }, { "qid": "MUM-2026-05-3155-Q002", "text": "Type of ship sailed?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-05-3155", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8459892868995667, "sibling_score": 0.8459892868995667, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8450009822845459, "sibling_score": 0.8450009822845459, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7928504943847656, "sibling_score": 0.7928504943847656, "answer_score": null, "sibling_qid": "CHE-2026-03-0253-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "MUM-2026-05-3155-Q003", "text": "Type of engine 6S60MEC?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-05-3155", "tray": "new", "candidates": [ { "answer_id": "MCC-MEB-P01-001", "score": 0.6119595170021057, "sibling_score": 0.6119595170021057, "answer_score": null, "sibling_qid": "MUM-2026-01-1242-Q004", "sibling_text": "type of engine mcc engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "MC-C (\"Compact\") engine — design and the main constructional differences from MC", "cross_family": false }, { "answer_id": "ENG-NOM-004", "score": 0.6011667251586914, "sibling_score": 0.6011667251586914, "answer_score": 0.5144924938678741, "sibling_qid": "MUM-2026-07-3761-Q009", "sibling_text": "explain the structural reasons for the nomenclature of a 6s60mcc engine specifically what 6 s 60 m c c represent", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Decode every letter and number: 6S60MC-C and 6S70ME-C", "cross_family": true }, { "answer_id": "ENG-NOM-003", "score": 0.5878696441650391, "sibling_score": 0.5878696441650391, "answer_score": null, "sibling_qid": "KOL-2018-03-1355-Q002", "sibling_text": "engine 6s60mcc what is s if it would be l then what does it mean stroke bore ratio of main engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Stroke letters S/L/K/G, stroke-bore ratio, mark and series number", "cross_family": true } ] }, { "qid": "MUM-2026-05-3155-Q004", "text": "what is S in engine nomenclature?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-05-3155", "tray": "review", "candidates": [ { "answer_id": "EGTP-P02-012", "score": 0.7301644086837769, "sibling_score": 0.7301644086837769, "answer_score": null, "sibling_qid": "MUM-2026-07-3720-Q002", "sibling_text": "what is s in engine nomenclature advantages", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Stroke, Bore Ratio and Super-Long Stroke", "cross_family": true }, { "answer_id": "ENG-NOM-005", "score": 0.5881553888320923, "sibling_score": 0.5881553888320923, "answer_score": 0.4404554933309555, "sibling_qid": "MUM-2026-09-3927-Q002", "sibling_text": "engine specification nomenclature", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false }, { "answer_id": "ENG-NOM-003", "score": 0.5832008123397827, "sibling_score": 0.5832008123397827, "answer_score": 0.4618530571460724, "sibling_qid": "KOL-2018-03-1355-Q002", "sibling_text": "engine 6s60mcc what is s if it would be l then what does it mean stroke bore ratio of main engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Stroke letters S/L/K/G, stroke-bore ratio, mark and series number", "cross_family": true } ] }, { "qid": "MUM-2026-05-3155-Q012", "text": "During running of main engine indicator cock is leaking what is the corrective actions?", "family": "2-Stroke - Operations & Casualty", "subtopic": "Water from Indicator Cock", "tid": "MUM-2026-05-3155", "tray": "new", "candidates": [ { "answer_id": "HYD-JACK-002", "score": 0.6375542283058167, "sibling_score": 0.6375542283058167, "answer_score": null, "sibling_qid": "KOL-2025-01-3736-Q003", "sibling_text": "during opening of me cylinder head hydraulic nut jack started leaking what will you do", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Hydraulic jack leaks, seizes, will not reach pressure, or nut will not loosen", "cross_family": false }, { "answer_id": "FLGLS-003", "score": 0.634562075138092, "sibling_score": 0.634562075138092, "answer_score": null, "sibling_qid": "KOC-2022-11-1797-Q005", "sibling_text": "mech seal drawing 6 main engine high pressure pipe leaking should not cut off unit and must keep the engine running what to do i said protective sheathe will contain the leak within the pipe and the leak will goto leak off tank he didn t accept", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "HP fuel pipe leakage — actions, no-spare, milling and long-voyage readiness", "cross_family": true }, { "answer_id": "SEA-CHEST-006", "score": 0.6201736330986023, "sibling_score": 0.6201736330986023, "answer_score": null, "sibling_qid": "MUM-2026-01-2527-Q004", "sibling_text": "ae water coming out from all indicator cocks what action", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "2/E actions: leak, crack, fouling, stuck valve, valve-life", "cross_family": true } ] }, { "qid": "MUM-2026-05-3156-Q005", "text": "How to reduce heeling?", "family": "", "subtopic": "Anti-Roll Tank / Stabiliser", "tid": "MUM-2026-05-3156", "tray": "new", "candidates": [ { "answer_id": "LOLL-P02-002", "score": 0.5217875242233276, "sibling_score": 0.5217875242233276, "answer_score": null, "sibling_qid": "KOL-2024-11-0879-Q003", "sibling_text": "how to correct heel due to instability", "sibling_family": "", "via": "sibling", "answer_title": "1. Correcting angle of loll — the ballasting sequence", "cross_family": false }, { "answer_id": "IM-TSS-P01-003", "score": 0.4466972053050995, "sibling_score": 0.4466972053050995, "answer_score": null, "sibling_qid": "MUM-2026-05-2995-Q011", "sibling_text": "slip and how to reduce", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Slip — what it is, why it is necessary, and zero-slip", "cross_family": false }, { "answer_id": "STAB-GZ-P01-001", "score": 0.44408610463142395, "sibling_score": 0.44408610463142395, "answer_score": null, "sibling_qid": "KOL-2020-01-0379-Q004", "sibling_text": "small angle of heel and large angle of heel full details", "sibling_family": "", "via": "sibling", "answer_title": "Draw and explain the statical stability (GZ) curve", "cross_family": false } ] }, { "qid": "MUM-2026-05-3158-Q010", "text": "ISM and ISO ?", "family": "ISM Code", "subtopic": "TQM / Quality Management", "tid": "MUM-2026-05-3158", "tray": "new", "candidates": [ { "answer_id": "WIDAS-SMK-007", "score": 0.6363943219184875, "sibling_score": 0.6363943219184875, "answer_score": null, "sibling_qid": "MUM-2026-03-0855-Q003", "sibling_text": "diff between iso ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Smoke sampling line — testing, confirming clear, and what is in the tube", "cross_family": false }, { "answer_id": "ISM-ELEM-002", "score": 0.574077308177948, "sibling_score": 0.574077308177948, "answer_score": 0.308438315987587, "sibling_qid": "MUM-2026-08-3829-Q006", "sibling_text": "ism code", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the ISM Code?", "cross_family": false }, { "answer_id": "ISM-DPA-002", "score": 0.5486630201339722, "sibling_score": 0.5486630201339722, "answer_score": null, "sibling_qid": "KOC-2023-03-0172-Q004", "sibling_text": "ism who is responsible for ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "DPA basis : which convention, which code, and who is responsible for ISM", "cross_family": false } ] }, { "qid": "MUM-2026-05-3160-Q003", "text": "Type of ship sailed?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-05-3160", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8459892868995667, "sibling_score": 0.8459892868995667, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8450009822845459, "sibling_score": 0.8450009822845459, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7928504943847656, "sibling_score": 0.7928504943847656, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "MUM-2026-05-3161-Q005", "text": "How to detect air leak in evaporator coil?", "family": "Refrigeration & AC", "subtopic": "Refrigeration Faults / Checks", "tid": "MUM-2026-05-3161", "tray": "review", "candidates": [ { "answer_id": "REFR-FLT-003", "score": 0.7948139309883118, "sibling_score": 0.7948139309883118, "answer_score": 0.5161860883235931, "sibling_qid": "MUM-2026-07-3731-Q005", "sibling_text": "how to detect air leak in evaporator coil", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Refrigerant leakage or loss: detect, confirm, respond, and the record-keeping", "cross_family": false }, { "answer_id": "LO-CLR-001", "score": 0.7556694149971008, "sibling_score": 0.7556694149971008, "answer_score": null, "sibling_qid": "MUM-2026-06-3598-Q010", "sibling_text": "leak in the evaporator coil of ac how to check", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "How do you detect a leaking AE / DG lube-oil cooler, and locate the tube?", "cross_family": false }, { "answer_id": "AIR-REF-001", "score": 0.6922919750213623, "sibling_score": 0.6922919750213623, "answer_score": null, "sibling_qid": "MUM-2026-07-3671-Q007", "sibling_text": "how to detect air in refrigeration system", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "1. Indications that air is present in a refrigeration system", "cross_family": false } ] }, { "qid": "MUM-2026-05-3161-Q007", "text": "How to set boiler safety valve?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2026-05-3161", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-001", "score": 0.8248352408409119, "sibling_score": 0.8248352408409119, "answer_score": null, "sibling_qid": "KOC-2026-05-0003-Q005", "sibling_text": "boiler safety valve setting procedure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.7953936457633972, "sibling_score": 0.7953936457633972, "answer_score": null, "sibling_qid": "MUM-2026-03-2935-Q013", "sibling_text": "boiler safety valve setting in presence of surveyor after survey", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.7942004799842834, "sibling_score": 0.7942004799842834, "answer_score": null, "sibling_qid": "KOC-2026-05-0034-Q010", "sibling_text": "boiler safety valve types and how safety valve is set complete procedures", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "MUM-2026-05-3161-Q008", "text": "How direction control valve works in hydraulic system?", "family": "Workshop & Welding", "subtopic": "Hydraulic Pipe", "tid": "MUM-2026-05-3161", "tray": "review", "candidates": [ { "answer_id": "CBV-001", "score": 0.7855057120323181, "sibling_score": 0.7855057120323181, "answer_score": null, "sibling_qid": "MUM-2026-06-3572-Q008", "sibling_text": "how direction control valve works in hydraulic system", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "What is a counter-balance valve, why fitted, and why needed even with a directional-control valve?", "cross_family": false }, { "answer_id": "HYD-VLV-005", "score": 0.6141635179519653, "sibling_score": 0.6141635179519653, "answer_score": 0.548372083902359, "sibling_qid": "KOL-2019-04-2280-Q005", "sibling_text": "he showed few symbols of direction control valve and told me to explain", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Reading the Hydraulic Block: P, T, A, B and the Directional-Valve Symbol", "cross_family": true }, { "answer_id": "RVSG-213-002", "score": 0.5858756303787231, "sibling_score": 0.5858756303787231, "answer_score": 0.5503811627626419, "sibling_qid": "KOL-2016-09-1238-Q004", "sibling_text": "rotary vane steering gear how reversal in direction takes place types of pump used construction of pump", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Working principle, actuation, reversal, movement angle & number of vanes", "cross_family": true } ] }, { "qid": "MUM-2026-05-3162-Q001", "text": "Asked about status other functions and written exam?", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2026-05-3162", "tray": "review", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.6686707735061646, "sibling_score": 0.6686707735061646, "answer_score": null, "sibling_qid": "MUM-2026-01-1252-Q001", "sibling_text": "status of results oral written exam", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": false }, { "answer_id": "DUS-P1-02", "score": 0.5969662666320801, "sibling_score": 0.5969662666320801, "answer_score": null, "sibling_qid": "KOL-2025-08-3851-Q006", "sibling_text": "drydock plans rudder checks cross questions what about other written oral exams status told waiting for naval written result to come all other paper cleared", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Plans, drawings and special tools kept ready for drydock — engine-department view", "cross_family": true }, { "answer_id": "EXHV-P01-001", "score": 0.5019563436508179, "sibling_score": 0.5019563436508179, "answer_score": null, "sibling_qid": "CHE-2026-01-0101-Q001", "sibling_text": "types of ship done and exam status", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": true } ] }, { "qid": "MUM-2026-05-3162-Q002", "text": "Types of vessel done?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-05-3162", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.7596619725227356, "sibling_score": 0.7596619725227356, "answer_score": null, "sibling_qid": "MUM-2026-02-1280-Q001", "sibling_text": "type of ship done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.6931738257408142, "sibling_score": 0.6931738257408142, "answer_score": null, "sibling_qid": "CHE-2026-02-0481-Q001", "sibling_text": "type of vessels sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "SOLAS12-BC-A-001", "score": 0.6763768792152405, "sibling_score": 0.6763768792152405, "answer_score": null, "sibling_qid": "MUM-2026-04-2958-Q001", "sibling_text": "ship done bulk carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "SOLAS definition and scope of a bulk carrier", "cross_family": false } ] }, { "qid": "MUM-2026-05-3162-Q003S2", "text": "Which is more effective at low load?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "VIT Mechanism", "tid": "MUM-2026-05-3162", "tray": "new", "candidates": [ { "answer_id": "VIT-MECH-B-001", "score": 0.527787983417511, "sibling_score": 0.527787983417511, "answer_score": null, "sibling_qid": "KOL-2020-08-1543-Q002", "sibling_text": "vit detail and why not used at low load", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "The VIT / Super VIT curve — breakpoint, range and load-dependent advance/retard", "cross_family": false }, { "answer_id": "LS-IMB-A-001", "score": 0.48744937777519226, "sibling_score": 0.48744937777519226, "answer_score": null, "sibling_qid": "MUM-2024-04-0168-Q022", "sibling_text": "one generator load is low", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Two paralleled generators sharing unequal load — cause and correction", "cross_family": true }, { "answer_id": "EGTP-P02-008", "score": 0.48657679557800293, "sibling_score": 0.48657679557800293, "answer_score": null, "sibling_qid": "MUM-2023-08-1058-Q009", "sibling_text": "why not at and below 40 45 load", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "General Engine Theory — Operating Envelope", "cross_family": true } ] }, { "qid": "MUM-2026-05-3163-Q002", "text": "Construction of Modern bed plate?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Bedplate / A-Frame", "tid": "MUM-2026-05-3163", "tray": "new", "candidates": [ { "answer_id": "FWFB-P02-007", "score": 0.5728403925895691, "sibling_score": 0.5728403925895691, "answer_score": null, "sibling_qid": "MUM-2026-03-2952-Q007", "sibling_text": "what type of bedplate", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Transverse and longitudinal girders: arrangement and purpose", "cross_family": false }, { "answer_id": "BED-CHOCK-001", "score": 0.529069185256958, "sibling_score": 0.529069185256958, "answer_score": 0.35473153591156004, "sibling_qid": "MUM-2023-08-0952-Q004", "sibling_text": "how to fix bed plate on ship", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "How is the main-engine bedplate fixed to the ship's structure?", "cross_family": false }, { "answer_id": "CHK-330-004", "score": 0.5077694654464722, "sibling_score": 0.5077694654464722, "answer_score": 0.40588798820972444, "sibling_qid": "MUM-2026-03-1306-Q014S4", "sibling_text": "bed plate parts choking arrangement alignment of shaft intermediate shaft take out procedure", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Chocking arrangement on the main engine bedplate seating", "cross_family": false } ] }, { "qid": "MUM-2026-05-3163-Q002S2", "text": "Advantages of modern bed plate over old ones?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Bedplate / A-Frame", "tid": "MUM-2026-05-3163", "tray": "new", "candidates": [ { "answer_id": "FWFB-P02-007", "score": 0.48726052045822144, "sibling_score": 0.48726052045822144, "answer_score": null, "sibling_qid": "MUM-2026-03-2952-Q007", "sibling_text": "what type of bedplate", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Transverse and longitudinal girders: arrangement and purpose", "cross_family": false }, { "answer_id": "PTHE-001", "score": 0.44346684217453003, "sibling_score": 0.44346684217453003, "answer_score": null, "sibling_qid": "MUM-2026-05-3276-Q012", "sibling_text": "disadvantage of plate type apart from costings", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Plate vs shell-and-tube: advantages, efficiency and selection", "cross_family": true }, { "answer_id": "BED-CHOCK-001", "score": 0.4212751090526581, "sibling_score": 0.4212751090526581, "answer_score": 0.3020319104194641, "sibling_qid": "MUM-2023-08-0952-Q004", "sibling_text": "how to fix bed plate on ship", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "How is the main-engine bedplate fixed to the ship's structure?", "cross_family": false } ] }, { "qid": "MUM-2026-05-3166-Q001", "text": "Which type of ship sailed on?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-05-3166", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.7893534302711487, "sibling_score": 0.7893534302711487, "answer_score": null, "sibling_qid": "CHE-2026-02-0478-Q004", "sibling_text": "this type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7699171900749207, "sibling_score": 0.7699171900749207, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.45392860770225524, "sibling_score": null, "answer_score": 0.45392860770225524, "sibling_qid": "", "sibling_text": "type a and type b ships how form and cargo set the freeboard", "sibling_family": "", "via": "answer_title", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "MUM-2026-05-3166-Q007", "text": "AE crankcase inspection ? Which type of ship sailed on?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE CRANKCASE", "tid": "MUM-2026-05-3166", "tray": "new", "candidates": [ { "answer_id": "CRKC-INSP-002", "score": 0.6488948464393616, "sibling_score": 0.6488948464393616, "answer_score": null, "sibling_qid": "KOL-2021-11-3486-Q002", "sibling_text": "ship sailed through rough weather c e asked you to check crankshaft what will u check", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Quick crankcase inspection after rough weather or grounding (short port stay)", "cross_family": true }, { "answer_id": "CRKC-INSP-001", "score": 0.6365746259689331, "sibling_score": 0.6365746259689331, "answer_score": null, "sibling_qid": "MUM-2026-09-3876-Q005", "sibling_text": "crank case inspection of ae", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Routine main-engine crankcase inspection — checks as 2/E", "cross_family": false }, { "answer_id": "CRK-DEFL-006", "score": 0.6258650422096252, "sibling_score": 0.6258650422096252, "answer_score": 0.43489132523536683, "sibling_qid": "KOC-2024-01-1828-Q007", "sibling_text": "your ship grounded what all you check crankshaft deflection", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Checks after grounding, refloating or heavy weather", "cross_family": true } ] }, { "qid": "MUM-2026-05-3167-Q004", "text": "Type of Alternator on ship?", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator / Generator", "tid": "MUM-2026-05-3167", "tray": "review", "candidates": [ { "answer_id": "ALT-GEN-P02-001", "score": 0.7747738361358643, "sibling_score": 0.7747738361358643, "answer_score": 0.5460427075624465, "sibling_qid": "CHE-2025-11-0311-Q001", "sibling_text": "type of ship and alternator spec", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Alternator/generator specifications, ratings and ship electrical supply details", "cross_family": false }, { "answer_id": "ALT-GEN-P01-002", "score": 0.7154651284217834, "sibling_score": 0.7154651284217834, "answer_score": 0.5930838286876678, "sibling_qid": "KOL-2022-05-2570-Q002", "sibling_text": "what type of alternator you had on your last ship", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "2. Types of generator/alternator carried onboard", "cross_family": false }, { "answer_id": "BRUSHALT-A-001", "score": 0.6763524413108826, "sibling_score": 0.6763524413108826, "answer_score": null, "sibling_qid": "KOL-2021-10-2498-Q003", "sibling_text": "alternator excitation types which one takes less time to recover voltage which one used more in ships why", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01 · Working principle of the brushless alternator / brushless excitation systemHigh", "cross_family": false } ] }, { "qid": "MUM-2026-05-3168-Q010S2", "text": "What is Skin effect ?", "family": "Electrical - Motors & Starters", "subtopic": "Induction Motor (General / Working)", "tid": "MUM-2026-05-3168", "tray": "new", "candidates": [ { "answer_id": "CABLE-INS-E-004", "score": 0.6355149745941162, "sibling_score": 0.6355149745941162, "answer_score": 0.29681757688522337, "sibling_qid": "MUM-2024-12-1480-Q005", "sibling_text": "skin effect", "sibling_family": "", "via": "sibling", "answer_title": "Conductor properties, copper and skin effect", "cross_family": false }, { "answer_id": "HV-SYS-P06-004", "score": 0.5851885080337524, "sibling_score": 0.5851885080337524, "answer_score": 0.3304204910993576, "sibling_qid": "MUM-2026-04-2079-Q003", "sibling_text": "what is skin effect", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Corona, ionisation and skin effect in HV oral questions", "cross_family": true }, { "answer_id": "BC-IMSBC-002", "score": 0.4491506814956665, "sibling_score": 0.4491506814956665, "answer_score": null, "sibling_qid": "CHE-2026-02-0114-Q012", "sibling_text": "double skin and single skin requirements", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "2. Bulk carrier construction and structural design", "cross_family": true } ] }, { "qid": "MUM-2026-05-3170-Q002S2", "text": "Why we cannot use normal IR test for HV insulation?", "family": "", "subtopic": "High Voltage System", "tid": "MUM-2026-05-3170", "tray": "new", "candidates": [ { "answer_id": "IR-TEST-B-007", "score": 0.6204721927642822, "sibling_score": 0.6204721927642822, "answer_score": 0.48961021304130553, "sibling_qid": "KOL-2024-05-2713-Q003", "sibling_text": "how to measure ir of hv what safety precautions to be taken what is the difference between regular ir test and hv ir test", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "HV IR test — safety precautions and how HV differs from LV", "cross_family": false }, { "answer_id": "IRT-A-006", "score": 0.6167080402374268, "sibling_score": 0.6167080402374268, "answer_score": 0.4806959927082062, "sibling_qid": "KOL-2026-01-2949-Q002", "sibling_text": "high voltage ir test", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "High-voltage IR test - procedure, HV vs LV megger, safety", "cross_family": false }, { "answer_id": "IR-TEST-B-006", "score": 0.6001246571540833, "sibling_score": 0.6001246571540833, "answer_score": null, "sibling_qid": "KOL-2025-08-2832-Q010", "sibling_text": "hv insulation resistance test", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "High-voltage IR test — full procedure", "cross_family": false } ] }, { "qid": "MUM-2026-05-3171-Q003", "text": "Zener barrier circuit, where used?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Zener / Diode / Rectifier", "tid": "MUM-2026-05-3171", "tray": "review", "candidates": [ { "answer_id": "HAZ-EX-B-001", "score": 0.6807035803794861, "sibling_score": 0.6807035803794861, "answer_score": null, "sibling_qid": "CHE-2026-03-0358-Q005", "sibling_text": "zener barrier working in intrinsically safe", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Intrinsically safe (Ex i) equipment — what it is, how it works, where it is used, how you identify it", "cross_family": false }, { "answer_id": "FSF-BF073-004", "score": 0.6763539910316467, "sibling_score": 0.6763539910316467, "answer_score": null, "sibling_qid": "CHE-2026-03-0359-Q001", "sibling_text": "zener diode zener barrier working in intrinsically safe", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a magnetic fail safe?", "cross_family": false }, { "answer_id": "EPC-P02-03", "score": 0.6744327545166016, "sibling_score": 0.6744327545166016, "answer_score": 0.5012601345777511, "sibling_qid": "KOL-2025-06-2788-Q007", "sibling_text": "zener diode where used", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Where is a zener diode used on board and why — voltage regulator, AVR, clipper — and explain one application in detail.", "cross_family": false } ] }, { "qid": "MUM-2026-05-3172-Q003", "text": "Why no Aux Blowers to AE?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE TURBOCHARGER", "tid": "MUM-2026-05-3172", "tray": "new", "candidates": [ { "answer_id": "CPP-SGX-02", "score": 0.5031977891921997, "sibling_score": 0.5031977891921997, "answer_score": 0.4480413556098938, "sibling_qid": "KOL-2019-10-1492-Q013", "sibling_text": "why we require auxiliary blower on main engine and not on auxiliary engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main-engine auxiliary blowers", "cross_family": true }, { "answer_id": "COT-P02-06", "score": 0.45732778310775757, "sibling_score": 0.45732778310775757, "answer_score": null, "sibling_qid": "MUM-2026-02-0791-Q012", "sibling_text": "backup of blower if fails", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Explain the inert-gas blower arrangement, required capacity, pressure control, redundancy and safeguards.", "cross_family": true }, { "answer_id": "TURBO-CS-P03-018", "score": 0.4413643181324005, "sibling_score": 0.4413643181324005, "answer_score": null, "sibling_qid": "KOL-2023-11-3655-Q004", "sibling_text": "what will you do if your engine has only 1 t c and it has to be taken out of operation why do you need to remove compensating bellows from compressor discharge outlet from where does aux blower take suction", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Running with the only / all turbocharger(s) out of action", "cross_family": true } ] }, { "qid": "MUM-2026-05-3172-Q004", "text": "Resilient and Resin Chocks?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE Resilient Chock", "tid": "MUM-2026-05-3172", "tray": "new", "candidates": [ { "answer_id": "BED-CHOCK-006", "score": 0.5529822111129761, "sibling_score": 0.5529822111129761, "answer_score": 0.42284029722213745, "sibling_qid": "MUM-2025-11-2876-Q007", "sibling_text": "types of chocks epoxy resin and cast iron chocks", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What types of main-engine chocks are there — epoxy/resin, cast-iron, rubber — and why each?", "cross_family": true }, { "answer_id": "CHK-RM-002", "score": 0.5080276727676392, "sibling_score": 0.5080276727676392, "answer_score": null, "sibling_qid": "KOL-2021-09-3456-Q005", "sibling_text": "what are the different types of foundation chocks in main engine how are resin chocks built in place and advantages", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Explain resin chocking — what it is, how it is done, and how resin chocks are cast and poured.", "cross_family": true }, { "answer_id": "CHK-330-001", "score": 0.4947868585586548, "sibling_score": 0.4947868585586548, "answer_score": null, "sibling_qid": "CHE-2026-08-0671-Q009", "sibling_text": "function of chocks", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What is the purpose and function of main engine chocks?", "cross_family": true } ] }, { "qid": "MUM-2026-05-3173-Q004", "text": "Market based requirement IMO doing to reduce carbon?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Bio Fuel / Methanol / Ammonia", "tid": "MUM-2026-05-3173", "tray": "new", "candidates": [ { "answer_id": "EEXI-001", "score": 0.5151186585426331, "sibling_score": 0.5151186585426331, "answer_score": null, "sibling_qid": "KOC-2022-05-0075-Q007", "sibling_text": "means to reduce co2 emissions he is expecting eexi explanations internal no questions", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is EEXI? Explain it in full — formula, unit, application, and what an existing ship is", "cross_family": true }, { "answer_id": "MEPC-GHG-005", "score": 0.5150611400604248, "sibling_score": 0.5150611400604248, "answer_score": 0.38250057250261305, "sibling_qid": "MUM-2026-06-3413-Q006", "sibling_text": "imo requirements for reducing ghg", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "The IMO GHG Strategy and its revised version — the new and latest GHG measures, the strategy on CO2, and the requirements for reducing GHG.", "cross_family": true }, { "answer_id": "CO2-SYS-008", "score": 0.504303514957428, "sibling_score": 0.504303514957428, "answer_score": null, "sibling_qid": "KOC-2026-02-0805-Q008", "sibling_text": "fixed co2 solas requirements", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 release-rate rules, regulations and confirmation of discharge", "cross_family": true } ] }, { "qid": "MUM-2026-05-3173-Q005", "text": "Types of bed plate?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Bedplate / A-Frame", "tid": "MUM-2026-05-3173", "tray": "review", "candidates": [ { "answer_id": "FWFB-P02-007", "score": 0.708756685256958, "sibling_score": 0.708756685256958, "answer_score": null, "sibling_qid": "MUM-2026-03-2952-Q007", "sibling_text": "what type of bedplate", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Transverse and longitudinal girders: arrangement and purpose", "cross_family": false }, { "answer_id": "BED-CHOCK-001", "score": 0.5464245080947876, "sibling_score": 0.5464245080947876, "answer_score": null, "sibling_qid": "MUM-2023-08-0952-Q004", "sibling_text": "how to fix bed plate on ship", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "How is the main-engine bedplate fixed to the ship's structure?", "cross_family": false }, { "answer_id": "SHELL-PLT-B-002", "score": 0.5419063568115234, "sibling_score": 0.5419063568115234, "answer_score": null, "sibling_qid": "KOL-2024-08-0854-Q003", "sibling_text": "stealer plate coffin plate gusset plate", "sibling_family": "", "via": "sibling", "answer_title": "Stealer plate and strake nesting", "cross_family": false } ] }, { "qid": "MUM-2026-05-3174-Q001", "text": "status of functions?", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2026-05-3174", "tray": "new", "candidates": [ { "answer_id": "IMO-CODES-P03-002", "score": 0.5742654800415039, "sibling_score": 0.5742654800415039, "answer_score": null, "sibling_qid": "MUM-2026-03-0815-Q003", "sibling_text": "which function", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.5041208863258362, "sibling_score": 0.5041208863258362, "answer_score": null, "sibling_qid": "MUM-2026-03-1294-Q001", "sibling_text": "status of writtens and orals", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": false }, { "answer_id": "AVR-EXC-B-001", "score": 0.4955756366252899, "sibling_score": 0.4955756366252899, "answer_score": null, "sibling_qid": "KOC-2025-12-1676-Q004", "sibling_text": "explain status avr", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Explain the AVR working principle and control-loop operation.", "cross_family": true } ] }, { "qid": "MUM-2026-05-3174-Q005", "text": "OWS working principle?", "family": "MARPOL - Annex I (Oil)", "subtopic": "OWS / 15ppm / ODMCS", "tid": "MUM-2026-05-3174", "tray": "new", "candidates": [ { "answer_id": "OWS-15PPM-004", "score": 0.5340733528137207, "sibling_score": 0.5340733528137207, "answer_score": null, "sibling_qid": "CHE-2026-02-0475-Q004", "sibling_text": "ows o c m device working principle", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "OWS-15PPM-003", "score": 0.5108922123908997, "sibling_score": 0.5108922123908997, "answer_score": null, "sibling_qid": "KOL-2025-03-2766-Q007", "sibling_text": "ocm working principle", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "OWS-15PPM-002", "score": 0.49361640214920044, "sibling_score": 0.49361640214920044, "answer_score": null, "sibling_qid": "KOC-2025-10-0667-Q007", "sibling_text": "what are the regulations for ows", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "MUM-2026-05-3174-Q006", "text": "Type of vessel sailed?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-05-3174", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8419501185417175, "sibling_score": 0.8419501185417175, "answer_score": null, "sibling_qid": "CHE-2026-02-0481-Q001", "sibling_text": "type of vessels sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8252046704292297, "sibling_score": 0.8252046704292297, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.8038274645805359, "sibling_score": 0.8038274645805359, "answer_score": null, "sibling_qid": "CHE-2026-03-0255-Q001", "sibling_text": "type of vessel and engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "MUM-2026-05-3175-Q003", "text": "Type of flow in SW pipe?", "family": "Workshop & Welding", "subtopic": "Pipe Fabrication", "tid": "MUM-2026-05-3175", "tray": "new", "candidates": [ { "answer_id": "PIPE-MAT-002", "score": 0.5762110948562622, "sibling_score": 0.5762110948562622, "answer_score": null, "sibling_qid": "MUM-2023-04-2168-Q005", "sibling_text": "material of sw pipes", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Material and coating for sea-water / engine-room pipes", "cross_family": false }, { "answer_id": "STHX-001", "score": 0.5302144885063171, "sibling_score": 0.5302144885063171, "answer_score": null, "sibling_qid": "MUM-2026-02-1280-Q006", "sibling_text": "type of cooler type of flow", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "STHX-01 — Construction, parts, materials, tube fitting, pass arrangement and flow", "cross_family": true }, { "answer_id": "PIPE-MAT-001", "score": 0.5200434923171997, "sibling_score": 0.5200434923171997, "answer_score": null, "sibling_qid": "MUM-2026-07-3686-Q007", "sibling_text": "how to order sw pipe", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Ordering / specifying a replacement or sea-water pipe", "cross_family": false } ] }, { "qid": "MUM-2026-05-3180-Q003", "text": "Asymmetric rudder?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "MUM-2026-05-3180", "tray": "new", "candidates": [ { "answer_id": "STEER-055-A-004", "score": 0.6429067254066467, "sibling_score": 0.6429067254066467, "answer_score": null, "sibling_qid": "KOL-2019-02-3212-Q005", "sibling_text": "rudder is taking more to come from one side to the other reasons and maintenance", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Hydraulic faults — air, sluggish response, locking, leakage", "cross_family": false }, { "answer_id": "TRS-001", "score": 0.6015324592590332, "sibling_score": 0.6015324592590332, "answer_score": null, "sibling_qid": "KOL-2019-05-3236-Q005", "sibling_text": "rudder stock twisted how will you balance it how to find changed mishsip position", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "The rudder stock is twisted — how do you proceed, recover the true midship datum, and what regulations let you proceed to the next port?", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.599068820476532, "sibling_score": 0.599068820476532, "answer_score": null, "sibling_qid": "KOL-2021-03-1582-Q006", "sibling_text": "checks on rudder in dd", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false } ] }, { "qid": "MUM-2026-05-3182-Q001", "text": "Status of exam?", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2026-05-3182", "tray": "review", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.7421719431877136, "sibling_score": 0.7421719431877136, "answer_score": null, "sibling_qid": "MUM-2026-01-1252-Q001", "sibling_text": "status of results oral written exam", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.6084648370742798, "sibling_score": 0.6084648370742798, "answer_score": null, "sibling_qid": "CHE-2026-01-0101-Q001", "sibling_text": "types of ship done and exam status", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": true }, { "answer_id": "DUS-P1-02", "score": 0.5609056949615479, "sibling_score": 0.5609056949615479, "answer_score": null, "sibling_qid": "KOL-2025-08-3851-Q006", "sibling_text": "drydock plans rudder checks cross questions what about other written oral exams status told waiting for naval written result to come all other paper cleared", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Plans, drawings and special tools kept ready for drydock — engine-department view", "cross_family": true } ] }, { "qid": "MUM-2026-05-3182-Q008", "text": "Aft peak construction?", "family": "Ship Construction & Stability", "subtopic": "DEFINITION", "tid": "MUM-2026-05-3182", "tray": "new", "candidates": [ { "answer_id": "BSBH-420-002", "score": 0.6071133613586426, "sibling_score": 0.6071133613586426, "answer_score": 0.38597500473260876, "sibling_qid": "MUM-2026-06-3359-Q004", "sibling_text": "forepeak construction", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Fore-end / forepeak construction forward of the collision bulkhead — members and cross-section", "cross_family": false }, { "answer_id": "BSBH-420-001", "score": 0.5239375829696655, "sibling_score": 0.5239375829696655, "answer_score": 0.28454828858375547, "sibling_qid": "MUM-2025-11-0583-Q002", "sibling_text": "fore peak construction and cross question", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "What is a breast hook, where is it fitted, and what does it connect at the fore end?", "cross_family": true }, { "answer_id": "PPS-230-006", "score": 0.5123979449272156, "sibling_score": 0.5123979449272156, "answer_score": 0.32936087995767593, "sibling_qid": "MUM-2026-08-3829-Q005", "sibling_text": "forepeak tank construction", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Fore-end / fore-peak structure: draw and describe", "cross_family": false } ] }, { "qid": "MUM-2026-05-3182-Q010", "text": "How to increase strength of aft peak tank?", "family": "Ship Construction & Stability", "subtopic": "DEFINITION", "tid": "MUM-2026-05-3182", "tray": "new", "candidates": [ { "answer_id": "PPS-230-006", "score": 0.5909748077392578, "sibling_score": 0.5909748077392578, "answer_score": null, "sibling_qid": "MUM-2026-08-3829-Q005", "sibling_text": "forepeak tank construction", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Fore-end / fore-peak structure: draw and describe", "cross_family": false }, { "answer_id": "BC-HOPPER-G-003", "score": 0.5496846437454224, "sibling_score": 0.5496846437454224, "answer_score": null, "sibling_qid": "KOL-2022-11-0699-Q002", "sibling_text": "use upper hopper tank and how strengthening member of", "sibling_family": "", "via": "sibling", "answer_title": "Hopper / topside tank construction and strengthening members", "cross_family": false }, { "answer_id": "COT-04", "score": 0.5238780975341797, "sibling_score": 0.5238780975341797, "answer_score": null, "sibling_qid": "MUM-2026-09-3974-Q003", "sibling_text": "strengthening members of a chemical tanker", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Chemical-tanker midship section and cargo-tank construction", "cross_family": true } ] }, { "qid": "MUM-2026-05-3183-Q005", "text": "How the ME turbocharger RPM is measured?", "family": "Turbocharger", "subtopic": "Turbocharger (General)", "tid": "MUM-2026-05-3183", "tray": "review", "candidates": [ { "answer_id": "TCS-059-P04-011", "score": 0.7942959666252136, "sibling_score": 0.7942959666252136, "answer_score": 0.6089852154254913, "sibling_qid": "MUM-2026-05-3330-Q005", "sibling_text": "how the me turbocharger rpm is measured", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharger speed (rpm) measurement", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-011", "score": 0.6682887077331543, "sibling_score": 0.6682887077331543, "answer_score": 0.5629649221897125, "sibling_qid": "KOL-2024-01-4033-Q002", "sibling_text": "turbocharger rpm indicator how does it work and where it is fitted", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "11. Turbocharger RPM indicator — how it works and where it is fitted", "cross_family": false }, { "answer_id": "TURBO-CS-P02-017", "score": 0.655273973941803, "sibling_score": 0.655273973941803, "answer_score": 0.5560250759124755, "sibling_qid": "KOL-2018-03-2179-Q005", "sibling_text": "turbocharger rpm sensor very good surveyor but just he want precise answer that one word no cross questions after that", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharger speed (rpm) pickup — type and location", "cross_family": false } ] }, { "qid": "MUM-2026-05-3184-Q001", "text": "Engine of your last ship?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-05-3184", "tray": "review", "candidates": [ { "answer_id": "ILK-318-001", "score": 0.6930217742919922, "sibling_score": 0.6930217742919922, "answer_score": null, "sibling_qid": "MUM-2022-09-1021-Q005", "sibling_text": "interlocks in me engine in your last ship", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "1. What are the main engine interlocks?", "cross_family": true }, { "answer_id": "ETP-344-P01-001", "score": 0.6912270188331604, "sibling_score": 0.6912270188331604, "answer_score": null, "sibling_qid": "CHE-2026-09-3912-Q001", "sibling_text": "what was the power of your last ship s engine tell me about your last ship main engine what are all the details about it mentioned in the first page of your engine manual tell me everything", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ETP-344-P03-003", "score": 0.6849731206893921, "sibling_score": 0.6849731206893921, "answer_score": null, "sibling_qid": "KOC-2025-08-1938-Q005", "sibling_text": "last ship engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Engine nomenclature, layout, mark number and engine constant", "cross_family": true } ] }, { "qid": "MUM-2026-05-3185-Q005", "text": "Where u did presea?", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2026-05-3185", "tray": "new", "candidates": [ { "answer_id": "FSH-DET-004", "score": 0.375659704208374, "sibling_score": 0.375659704208374, "answer_score": null, "sibling_qid": "MUM-2026-03-2952-Q002", "sibling_text": "which place", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Heat detector locations onboard, and why heat detectors in ECR, workshop and machinery spaces", "cross_family": true }, { "answer_id": "OC-UV-TRIP-007", "score": 0.3645193576812744, "sibling_score": 0.3645193576812744, "answer_score": null, "sibling_qid": "KOC-2025-07-0633-Q034", "sibling_text": "where it could happen", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "General overcurrent / undervoltage trips — alarms, values and failure effects", "cross_family": true }, { "answer_id": "ALT-GEN-P03-001", "score": 0.3536572754383087, "sibling_score": 0.3536572754383087, "answer_score": null, "sibling_qid": "KOL-2022-10-2614-Q003", "sibling_text": "where u can find it", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Alternator/generator working principle and onboard electricity generation", "cross_family": true } ] }, { "qid": "MUM-2026-05-3185-Q009", "text": "Refrigeration bottle connection if not marked how will u find out?", "family": "Refrigeration & AC", "subtopic": "Reefer Charging", "tid": "MUM-2026-05-3185", "tray": "review", "candidates": [ { "answer_id": "REEF-CHG-003", "score": 0.7232482433319092, "sibling_score": 0.7232482433319092, "answer_score": 0.5203123122453689, "sibling_qid": "MUM-2025-03-2278-Q001", "sibling_text": "how many connections are there is refrigerant bottles what are they for", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "03Spare and recovery refrigerant bottles: connections and uses", "cross_family": false }, { "answer_id": "CO2-SYS-006", "score": 0.6067978143692017, "sibling_score": 0.6067978143692017, "answer_score": null, "sibling_qid": "KOC-2022-03-0063-Q011", "sibling_text": "markings on co2 bottle", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 bottles, manifolds, pilot cylinders and valve components", "cross_family": true }, { "answer_id": "AIR-REF-001", "score": 0.6036352515220642, "sibling_score": 0.6036352515220642, "answer_score": null, "sibling_qid": "MUM-2025-09-2846-Q013", "sibling_text": "indication of air in refrigeration", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "1. Indications that air is present in a refrigeration system", "cross_family": false } ] }, { "qid": "MUM-2026-05-3188-Q002", "text": "How connecting rod is attached with crankshaft in V type engine?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft / Crankpin", "tid": "MUM-2026-05-3188", "tray": "review", "candidates": [ { "answer_id": "CRPIN-CHK-P01-001", "score": 0.672113835811615, "sibling_score": 0.672113835811615, "answer_score": null, "sibling_qid": "KOL-2025-04-3776-Q001", "sibling_text": "crankpin connecting rod ovality", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankpin ovality — how it is measured and at what positions", "cross_family": false }, { "answer_id": "TR-TB-PA-001", "score": 0.6593469381332397, "sibling_score": 0.6593469381332397, "answer_score": null, "sibling_qid": "KOL-2024-04-3686-Q003", "sibling_text": "how firing forces transmitted tie rods arrangement how fitted how crankshaft rests on bedplate how bed plate girders fitted", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Function of tie rods and the firing-load path", "cross_family": false }, { "answer_id": "CRANK-217-003", "score": 0.6234636902809143, "sibling_score": 0.6234636902809143, "answer_score": 0.5039397507905959, "sibling_qid": "MUM-2022-10-1031-Q009", "sibling_text": "underslung crankshaft", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Underslung crankshaft", "cross_family": false } ] }, { "qid": "MUM-2026-05-3188-Q003", "text": "What is bridge bearing in crankshaft?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "", "tid": "MUM-2026-05-3188", "tray": "new", "candidates": [ { "answer_id": "CSD-BF036-001", "score": 0.5927452445030212, "sibling_score": 0.5927452445030212, "answer_score": null, "sibling_qid": "MUM-2023-05-1049-Q003", "sibling_text": "crankshaft deflection why we take what we understand about bearing", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Why do you take crankshaft deflection, and what does it tell you?", "cross_family": false }, { "answer_id": "CRPIN-CHK-P01-001", "score": 0.591767430305481, "sibling_score": 0.591767430305481, "answer_score": null, "sibling_qid": "MUM-2026-06-3438-Q006", "sibling_text": "how to check ovelity of crank shaft use of bridge gagauge", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankpin ovality — how it is measured and at what positions", "cross_family": false }, { "answer_id": "CRKPIN-P02-001", "score": 0.5883035063743591, "sibling_score": 0.5883035063743591, "answer_score": null, "sibling_qid": "KOL-2017-03-3041-Q003", "sibling_text": "crank pin brg survey", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankpin (bottom-end) bearing — removal, overhaul and survey inspection", "cross_family": false } ] }, { "qid": "MUM-2026-05-3189-Q002", "text": "Why HV voltages are in the multiples of 1.1, 3.3, 6.6 etc?", "family": "Electrical - Distribution & MSB", "subtopic": "Voltage System (440V / 690V / HV)", "tid": "MUM-2026-05-3189", "tray": "new", "candidates": [ { "answer_id": "HV-SYS-P02-001", "score": 0.6454168558120728, "sibling_score": 0.6454168558120728, "answer_score": null, "sibling_qid": "KOC-2025-07-1550-Q001", "sibling_text": "why high voltage are 1 1 3 3", "sibling_family": "", "via": "sibling", "answer_title": "Why high voltage is used onboard ships", "cross_family": false }, { "answer_id": "VOLT-SYS-008", "score": 0.5497339963912964, "sibling_score": 0.5497339963912964, "answer_score": null, "sibling_qid": "CHE-2025-07-0266-Q003", "sibling_text": "why 440 220 110 why not in the other figure he was expecting the history of how 440 or 220 or 110 develops", "sibling_family": "Electrical - Distribution & MSB", "via": "sibling", "answer_title": "Why standard shipboard voltages: 440, 230/220, 110 and 24", "cross_family": false }, { "answer_id": "RMS-VAL-006", "score": 0.5451689958572388, "sibling_score": 0.5451689958572388, "answer_score": 0.4937355756759643, "sibling_qid": "KOC-2025-04-1521-Q006", "sibling_text": "why voltages are rated at 220 440 1100 why not 200 400 and so on", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Why standard voltages are 220, 440, 1100 — not 200, 400, 1000", "cross_family": true } ] }, { "qid": "MUM-2026-05-3189-Q005", "text": "What is Droop and types of Droops?", "family": "Electrical - Generator & Alternator", "subtopic": "Voltage Dip / Droop", "tid": "MUM-2026-05-3189", "tray": "new", "candidates": [ { "answer_id": "AVRD-618-001", "score": 0.5623478293418884, "sibling_score": 0.5623478293418884, "answer_score": null, "sibling_qid": "KOC-2022-08-1191-Q007", "sibling_text": "avr droop", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "What is AVR droop, and why is it required?", "cross_family": false }, { "answer_id": "DROOP-001", "score": 0.5186122059822083, "sibling_score": 0.5186122059822083, "answer_score": 0.31398857682943343, "sibling_qid": "MUM-2026-09-3920-Q012", "sibling_text": "droop", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Governor / speed droop — what, why, setting and formula", "cross_family": true }, { "answer_id": "GOV-P03-002", "score": 0.32583069205284115, "sibling_score": null, "answer_score": 0.32583069205284115, "sibling_qid": "", "sibling_text": "droop isochronous operation and load sharing droop no load speed full load speed full load or rated speed 100 using the governor maker s stated convention a downward sloping speed versus load line purpose stable predictable load sharing of parallel sets it stops governors fighting or hunting for the load", "sibling_family": "", "via": "answer_title", "answer_title": "Droop, isochronous operation and load sharing", "cross_family": false } ] }, { "qid": "MUM-2026-05-3193-Q007", "text": "GMDSS ?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "EPIRB / SART", "tid": "MUM-2026-05-3193", "tray": "review", "candidates": [ { "answer_id": "UNL-330-001", "score": 0.7296289801597595, "sibling_score": 0.7296289801597595, "answer_score": null, "sibling_qid": "MUM-2026-05-3193-Q007", "sibling_text": "gmdss", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What is the function of the main air compressor unloader?", "cross_family": false }, { "answer_id": "bdc-p05-03", "score": 0.6256102919578552, "sibling_score": 0.6256102919578552, "answer_score": 0.39971174895763395, "sibling_qid": "CHE-2026-04-0379-Q005", "sibling_text": "gmdss source of supply", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "CQ-BDC-025 GMDSS reserve battery — requirement, supply, voltage and equipment Medium", "cross_family": true }, { "answer_id": "bdc-p05-04", "score": 0.5646967887878418, "sibling_score": 0.5646967887878418, "answer_score": 0.39785823374986645, "sibling_qid": "MUM-2026-03-1994-Q005", "sibling_text": "solas requirement for gmdss and emergency battery", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "CQ-BDC-027 GMDSS, emergency and engine-starting batteries — three systems, three rules Medium", "cross_family": true } ] }, { "qid": "MUM-2026-05-3194-Q001", "text": "What type of main engine and generator", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-05-3194", "tray": "new", "candidates": [ { "answer_id": "ENG-NOM-006", "score": 0.6424784660339355, "sibling_score": 0.6424784660339355, "answer_score": null, "sibling_qid": "MUM-2026-04-1320-Q003", "sibling_text": "main engine and generator specifications", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Short-form asks: SMC-C, LMC, and ME vs MC quickly", "cross_family": false }, { "answer_id": "CTRL-TL-002", "score": 0.6279889941215515, "sibling_score": 0.6279889941215515, "answer_score": null, "sibling_qid": "MUM-2026-03-1987-Q001", "sibling_text": "type of main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Function of a controller, and types used on board", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.6272282600402832, "sibling_score": 0.6272282600402832, "answer_score": null, "sibling_qid": "MUM-2026-09-3880-Q001", "sibling_text": "main engine type", "sibling_family": "2-Stroke - Operations & General", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "MUM-2026-05-3194-Q014", "text": "How is the earthing for 6.6kv done on your ship", "family": "Electrical - High Voltage", "subtopic": "", "tid": "MUM-2026-05-3194", "tray": "new", "candidates": [ { "answer_id": "SHFT-ERTH-300-001", "score": 0.5889361500740051, "sibling_score": 0.5889361500740051, "answer_score": null, "sibling_qid": "KOL-2019-10-2338-Q005", "sibling_text": "shaft earthing principle arrangement on ship for that", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Purpose, principle and arrangement", "cross_family": true }, { "answer_id": "ENR-P02B-001", "score": 0.5853755474090576, "sibling_score": 0.5853755474090576, "answer_score": 0.5309377580881118, "sibling_qid": "MUM-2026-09-3917-Q003", "sibling_text": "how is electrical system earthed in hv ship", "sibling_family": "Electrical - Distribution & MSB", "via": "sibling", "answer_title": "Ship’s earthing / distribution system — insulated LV neutral, earthed (Class-approved) HV neutral", "cross_family": true }, { "answer_id": "NER-HV-P04-001", "score": 0.5768271088600159, "sibling_score": 0.5768271088600159, "answer_score": 0.5037629842758179, "sibling_qid": "CHE-2026-04-0369-Q003", "sibling_text": "how your generator is earthed why to ground is your ship a ground", "sibling_family": "", "via": "sibling", "answer_title": "What an NER is, where it is used, and why it is fitted in HV systems", "cross_family": false } ] }, { "qid": "MUM-2026-05-3194-Q015", "text": "How will you check the resistance value of a 6.6 kV earthing resistor on your ship?", "family": "Electrical - High Voltage", "subtopic": "", "tid": "MUM-2026-05-3194", "tray": "new", "candidates": [ { "answer_id": "RCC-568-001", "score": 0.6140041947364807, "sibling_score": 0.6140041947364807, "answer_score": null, "sibling_qid": "KOC-2023-01-1221-Q007", "sibling_text": "how do measure resistance value of resistor internal", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Resistor colour code — read the bands and find the value", "cross_family": true }, { "answer_id": "MSB-ESB-A-001", "score": 0.5754134654998779, "sibling_score": 0.5754134654998779, "answer_score": null, "sibling_qid": "MUM-2026-09-3866-Q006", "sibling_text": "how to check bus bar resistance", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Busbars: construction, arrangement, connection, checks and rating", "cross_family": true }, { "answer_id": "IR-TEST-B-010", "score": 0.5743685960769653, "sibling_score": 0.5743685960769653, "answer_score": 0.4636050671339035, "sibling_qid": "MUM-2026-05-3305-Q003", "sibling_text": "insulation resistance how you will check step by step", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Open-circuit / continuity check, and the multimeter-vs-megger trap", "cross_family": true } ] }, { "qid": "MUM-2026-05-3194-Q016", "text": "Your boiler has a drum level sensor using a differential pressure transmitter.....how will u test for high level alarm from the diff pressure transmitter", "family": "Boilers - Operations & Firing", "subtopic": "Low Water Level", "tid": "MUM-2026-05-3194", "tray": "review", "candidates": [ { "answer_id": "LWL-005", "score": 0.9084458947181702, "sibling_score": 0.9084458947181702, "answer_score": 0.5947651118040085, "sibling_qid": "MUM-2026-05-3194-Q005", "sibling_text": "your boiler has a drum level sensor using a differential pressure transmitter how will u test for high level alarm from the diff pressure transmitter", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "How do you test the boiler low-water alarm and the low-low level trip? How do you test high level, and why is there a time delay in the alarm?", "cross_family": false }, { "answer_id": "DP-TX-001", "score": 0.7898852229118347, "sibling_score": 0.7898852229118347, "answer_score": null, "sibling_qid": "MUM-2026-07-3674-Q007", "sibling_text": "how to test high boiler water level with dp transmitter", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "DP cell / DP transmitter — working principle, construction and signal", "cross_family": false }, { "answer_id": "DP-TX-002", "score": 0.7618661522865295, "sibling_score": 0.7618661522865295, "answer_score": 0.5829804241657257, "sibling_qid": "MUM-2026-03-2010-Q003", "sibling_text": "how to check the boiler high level alarm by dp transmitter", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler drum-level DP transmitter — wet/reference leg, alarms and trip", "cross_family": false } ] }, { "qid": "MUM-2026-05-3196-Q001", "text": "Type of ship sailed on?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-05-3196", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8369786143302917, "sibling_score": 0.8369786143302917, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8360942602157593, "sibling_score": 0.8360942602157593, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.5168868720531463, "sibling_score": null, "answer_score": 0.5168868720531463, "sibling_qid": "", "sibling_text": "type a and type b ships how form and cargo set the freeboard", "sibling_family": "", "via": "answer_title", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "MUM-2026-05-3196-Q002", "text": "Engine type?", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-05-3196", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.8324224948883057, "sibling_score": 0.8324224948883057, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.8043279051780701, "sibling_score": 0.8043279051780701, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-001", "score": 0.463600355386734, "sibling_score": null, "answer_score": 0.463600355386734, "sibling_qid": "", "sibling_text": "1 turbocharger type main engine vs generator engine compressor is centrifugal in both cases only the turbine type differs large slow speed main engine axial flow turbine single stage constant pressure system", "sibling_family": "", "via": "answer_title", "answer_title": "1. Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "MUM-2026-05-3196-Q003", "text": "ME C, 2 stages in control system?", "family": "2-Stroke - ME-C / Electronic Engine", "subtopic": "", "tid": "MUM-2026-05-3196", "tray": "new", "candidates": [ { "answer_id": "CTRL-TL-005", "score": 0.6046402454376221, "sibling_score": 0.6046402454376221, "answer_score": 0.3592954456806183, "sibling_qid": "MUM-2025-07-0354-Q009", "sibling_text": "2 step control", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Two-step (two-position / on-off) controller", "cross_family": true }, { "answer_id": "CTRL-TL-008", "score": 0.5371310114860535, "sibling_score": 0.5371310114860535, "answer_score": 0.39920366555452347, "sibling_qid": "KOL-2022-10-1926-Q004", "sibling_text": "2 cascade control", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Cascade control, the slave controller, and split-range control", "cross_family": true }, { "answer_id": "ACC-603-005", "score": 0.5106073617935181, "sibling_score": 0.5106073617935181, "answer_score": null, "sibling_qid": "KOL-2025-07-3819-Q003", "sibling_text": "2 element control", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Two-element and three-element boiler water level control", "cross_family": true } ] }, { "qid": "MUM-2026-05-3196-Q006", "text": "During rounds ME air starting valve hot, reasons, actions to take, ship is in open waters?", "family": "2-Stroke - Exhaust, Valve & Starting Air", "subtopic": "Starting Air Valve (SAV)", "tid": "MUM-2026-05-3196", "tray": "review", "candidates": [ { "answer_id": "SAV-003", "score": 0.7192831039428711, "sibling_score": 0.7192831039428711, "answer_score": 0.5504830986261368, "sibling_qid": "KOL-2020-01-3310-Q002", "sibling_text": "vessel is going in river passage master had order cannot stop or slowdown in between no 4 unit air staring valve leaking and become red hot what action u will take as a 2nd engg he don t want to listen for tapping with hammer on air staring valve want to listen something else", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Action when a unit starting air valve leaks or the line goes red hot in manoeuvring", "cross_family": false }, { "answer_id": "SAV-002", "score": 0.6957433819770813, "sibling_score": 0.6957433819770813, "answer_score": null, "sibling_qid": "KOL-2024-02-4037-Q002", "sibling_text": "air starting valve leaking how to identify at sea and at port", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Identifying and testing a leaking starting air valve", "cross_family": false }, { "answer_id": "SAE-388-003", "score": 0.6526979804039001, "sibling_score": 0.6526979804039001, "answer_score": 0.571075713634491, "sibling_qid": "MUM-2025-11-2876-Q002", "sibling_text": "st air line getting hot your first action as 2e he wanted close valve me air valve and drain line thats it", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "The starting air line is getting hot, or a starting valve is leaking — your action as 2nd Engineer?", "cross_family": true } ] }, { "qid": "MUM-2026-05-3196-Q009", "text": "3E tells you while blowing through AE water is coming out from all the units, your actions as 2E?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "", "tid": "MUM-2026-05-3196", "tray": "new", "candidates": [ { "answer_id": "SAV-003", "score": 0.5912110805511475, "sibling_score": 0.5912110805511475, "answer_score": null, "sibling_qid": "MUM-2026-02-2546-Q004", "sibling_text": "ae starting time water is coming from indicator cockw while blow through what action as 2e", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Action when a unit starting air valve leaks or the line goes red hot in manoeuvring", "cross_family": true }, { "answer_id": "SEA-CHEST-006", "score": 0.5803192853927612, "sibling_score": 0.5803192853927612, "answer_score": 0.35807158201932904, "sibling_qid": "MUM-2026-01-2527-Q004", "sibling_text": "ae water coming out from all indicator cocks what action", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "2/E actions: leak, crack, fouling, stuck valve, valve-life", "cross_family": false }, { "answer_id": "CAS-ESTOP-001", "score": 0.5639597177505493, "sibling_score": 0.5639597177505493, "answer_score": 0.3716919511556625, "sibling_qid": "KOL-2018-08-3172-Q001", "sibling_text": "er flooding what is ur action as 2e", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Engine-room flooding / rapidly rising bilges — immediate action as 2/E", "cross_family": true } ] }, { "qid": "MUM-2026-05-3197-Q005", "text": "boiler safety valve construction and the lift of it? What is happening in full lift safety valve?⁠how much lift? Why D/4?what does D signify?⁠Why not D/2 or D/3 or D/6?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2026-05-3197", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.6892582178115845, "sibling_score": 0.6892582178115845, "answer_score": null, "sibling_qid": "KOL-2026-01-2037-Q003", "sibling_text": "boiler safety valve types full bore and improved high lift and their ratio how will you adjust the lift", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-002", "score": 0.6539209485054016, "sibling_score": 0.6539209485054016, "answer_score": null, "sibling_qid": "KOL-2026-02-3922-Q005", "sibling_text": "what is lifting of safety valve tell only within 3 percent of designated set pressure nothing else", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Acceptance limits and durations — the accumulation limit, the maximum test periods, and the action if the limit is exceeded", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-003", "score": 0.6443662047386169, "sibling_score": 0.6443662047386169, "answer_score": 0.5021834850311279, "sibling_qid": "KOL-2022-09-3574-Q003", "sibling_text": "accumulation pr test of boiler how much lift of safety v v how to check", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "The accumulation test and the safety valve — required lift, how lift and capacity are verified, and why accumulation must stay inside the limit", "cross_family": false } ] }, { "qid": "MUM-2026-05-3198-Q009", "text": "What to do if AE blow through water comes?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Water from Indicator Cock", "tid": "MUM-2026-05-3198", "tray": "new", "candidates": [ { "answer_id": "SEA-CHEST-006", "score": 0.5181933045387268, "sibling_score": 0.5181933045387268, "answer_score": null, "sibling_qid": "MUM-2026-01-2527-Q004", "sibling_text": "ae water coming out from all indicator cocks what action", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "2/E actions: leak, crack, fouling, stuck valve, valve-life", "cross_family": false }, { "answer_id": "PHL-001", "score": 0.508359432220459, "sibling_score": 0.508359432220459, "answer_score": 0.4206689417362213, "sibling_qid": "MUM-2024-12-2262-Q004", "sibling_text": "main sea water line suction like leak and bottom platform full of water what will you do", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "There is a hole in a line — bilge suction main, sea-water line, starting-air line or steam line: your action as 2/E, and how you find the exact location", "cross_family": true }, { "answer_id": "ODC-018", "score": 0.5045702457427979, "sibling_score": 0.5045702457427979, "answer_score": null, "sibling_qid": "MUM-2025-05-2290-Q004", "sibling_text": "er aft bilge well full of water you started ows after permission from ce after running for some time u noticed water level is not going down what can be the reason and actions u will take x que", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "OWS running but the bilge well is not going down — fault diagnosis", "cross_family": true } ] }, { "qid": "MUM-2026-05-3199-Q001", "text": "What types of ship you have sailed?", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-05-3199", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.7719898819923401, "sibling_score": 0.7719898819923401, "answer_score": null, "sibling_qid": "CHE-2026-09-3938-Q001", "sibling_text": "types of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7363743185997009, "sibling_score": 0.7363743185997009, "answer_score": 0.4755059778690338, "sibling_qid": "KOC-2026-02-0833-Q005", "sibling_text": "types of ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7335836291313171, "sibling_score": 0.7335836291313171, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false } ] }, { "qid": "MUM-2026-05-3199-Q005", "text": "Why Top Bracings?", "family": "2-Stroke - Components (Other)", "subtopic": "Top Bracing", "tid": "MUM-2026-05-3199", "tray": "new", "candidates": [ { "answer_id": "TOP-BRC-003", "score": 0.6113285422325134, "sibling_score": 0.6113285422325134, "answer_score": null, "sibling_qid": "MUM-2022-11-2717-Q005", "sibling_text": "top bracing types checks", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "3. Checks, testing, maintenance, overhaul and malfunction", "cross_family": false }, { "answer_id": "TOP-BRC-002", "score": 0.6104009747505188, "sibling_score": 0.6104009747505188, "answer_score": null, "sibling_qid": "CHE-2025-11-0456-Q005", "sibling_text": "top bracing function and types", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "2. Types and working — mechanical (friction) and hydraulic", "cross_family": false }, { "answer_id": "TOP-BRC-001", "score": 0.5938698649406433, "sibling_score": 0.5938698649406433, "answer_score": 0.27571138143539425, "sibling_qid": "KOC-2026-02-1105-Q009", "sibling_text": "why top bracings", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "1. What top bracing is, where it is fitted, and why", "cross_family": false } ] }, { "qid": "MUM-2026-05-3200-Q001", "text": "Hooper tank construction?", "family": "Cargo Ops - Tankers", "subtopic": "Cargo Tank Construction", "tid": "MUM-2026-05-3200", "tray": "new", "candidates": [ { "answer_id": "BC-HOPPER-G-001", "score": 0.577665388584137, "sibling_score": 0.577665388584137, "answer_score": 0.4024877786636352, "sibling_qid": "KOL-2022-07-0652-Q005", "sibling_text": "hooper tank", "sibling_family": "", "via": "sibling", "answer_title": "Hopper and topside tanks — what they are and their purpose", "cross_family": false }, { "answer_id": "BC-IMSBC-003", "score": 0.5582555532455444, "sibling_score": 0.5582555532455444, "answer_score": 0.37871982604265214, "sibling_qid": "KOL-2025-04-0929-Q003", "sibling_text": "upper hooper tank", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "3. Topside, upper hopper and lower hopper tanks", "cross_family": true }, { "answer_id": "LTK-386-003", "score": 0.5482492446899414, "sibling_score": 0.5482492446899414, "answer_score": null, "sibling_qid": "MUM-2026-05-3230-Q003", "sibling_text": "slop tank construction in detail", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Statutory requirements, capacity criteria and regulation for slop tanks", "cross_family": false } ] }, { "qid": "MUM-2026-05-3200-Q002", "text": "What is Bulkhead stool? why it is provided?", "family": "Ship Construction & Stability", "subtopic": "", "tid": "MUM-2026-05-3200", "tray": "new", "candidates": [ { "answer_id": "SFP-AB-002", "score": 0.5245499014854431, "sibling_score": 0.5245499014854431, "answer_score": null, "sibling_qid": "CHE-2026-09-3904-Q005", "sibling_text": "class bulkhead", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "What is an A-class division?", "cross_family": false }, { "answer_id": "BHD-TYPE-A-001", "score": 0.5114786624908447, "sibling_score": 0.5114786624908447, "answer_score": null, "sibling_qid": "MUM-2022-12-0073-Q004", "sibling_text": "bulkhead purpose", "sibling_family": "", "via": "sibling", "answer_title": "Bulkheads — types, classification, functions and purpose", "cross_family": false }, { "answer_id": "A60-BCLASS-001", "score": 0.48428964614868164, "sibling_score": 0.48428964614868164, "answer_score": null, "sibling_qid": "KOL-2025-09-1030-Q009", "sibling_text": "class a bulkhead explanation", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "A-60 / Class ‘A’ fire division — what it is", "cross_family": true } ] }, { "qid": "MUM-2026-05-3200-Q005", "text": "Coffer dam?", "family": "Ship Construction & Stability", "subtopic": "Cofferdam / Void Space", "tid": "MUM-2026-05-3200", "tray": "new", "candidates": [ { "answer_id": "SAC-ANODE-006", "score": 0.5688444375991821, "sibling_score": 0.5688444375991821, "answer_score": 0.43271865248680114, "sibling_qid": "KOL-2026-01-1153-Q004", "sibling_text": "why is disc type anode fitted in cofferdam location where fitted", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "Where are disc-type or tank / cofferdam anodes fitted, and are anodes fitted in product-tanker cargo tanks?", "cross_family": true }, { "answer_id": "PPS-230-006", "score": 0.5376206636428833, "sibling_score": 0.5376206636428833, "answer_score": null, "sibling_qid": "MUM-2026-08-3829-Q005", "sibling_text": "forepeak tank construction", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Fore-end / fore-peak structure: draw and describe", "cross_family": false }, { "answer_id": "FORMCO-313-001", "score": 0.5329989790916443, "sibling_score": 0.5329989790916443, "answer_score": null, "sibling_qid": "KOL-2019-04-0282-Q002", "sibling_text": "block coff", "sibling_family": "", "via": "sibling", "answer_title": "Block coefficient (Cb) / coefficient of buoyancy", "cross_family": false } ] }, { "qid": "MUM-2026-05-3200-Q006", "text": "M/E contaminated by water, what are the reasons? Decider question", "family": "Fault Diagnosis & 2/E Actions", "subtopic": "", "tid": "MUM-2026-05-3200", "tray": "new", "candidates": [ { "answer_id": "LO-TEST-P02-003", "score": 0.5535379648208618, "sibling_score": 0.5535379648208618, "answer_score": null, "sibling_qid": "KOC-2026-05-0003-Q012", "sibling_text": "me lub oil is contaminated with fresh water actions", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Abnormal LO condition: sump rise, colour, high temperature/pressure, lacquer, deterioration", "cross_family": true }, { "answer_id": "BLR-CHEM-008", "score": 0.5402244329452515, "sibling_score": 0.5402244329452515, "answer_score": 0.4126962602138519, "sibling_qid": "KOL-2021-07-1604-Q005", "sibling_text": "boiler feed water what type of contamination and reasons", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "8. Boiler-water contaminants, hardness, scale and sludge", "cross_family": true }, { "answer_id": "PUR-BOWL-P03-FINAL-1-003", "score": 0.5388176441192627, "sibling_score": 0.5388176441192627, "answer_score": null, "sibling_qid": "KOL-2021-09-3457-Q001", "sibling_text": "purifier water side sludge coming reasons", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "3. Overflow, Oil-Over-Water and Sludge Carry-Over — Causes, Checks and After-Overhaul Action", "cross_family": true } ] }, { "qid": "MUM-2026-05-3200-Q007", "text": "Explain SOLAS CHAPTER 15?", "family": "SOLAS - General", "subtopic": "", "tid": "MUM-2026-05-3200", "tray": "new", "candidates": [ { "answer_id": "SOLAS-OVW-012", "score": 0.6299933195114136, "sibling_score": 0.6299933195114136, "answer_score": null, "sibling_qid": "MUM-2026-06-3656-Q020", "sibling_text": "explain solas chapter 15", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "SOLAS Chapter XV and the newest chapters", "cross_family": true }, { "answer_id": "SOLAS12-C-001", "score": 0.5018760561943054, "sibling_score": 0.5018760561943054, "answer_score": null, "sibling_qid": "KOC-2026-08-2119-Q007", "sibling_text": "explain chapter 12 of solas", "sibling_family": "SOLAS - General", "via": "sibling", "answer_title": "Explain SOLAS Chapter XII for bulk carriers — oral-exam overview", "cross_family": false }, { "answer_id": "SOLAS-OVW-003", "score": 0.48398762941360474, "sibling_score": 0.48398762941360474, "answer_score": null, "sibling_qid": "KOL-2026-01-1161-Q011", "sibling_text": "solas chapter 14", "sibling_family": "", "via": "sibling", "answer_title": "SOLAS Chapter XIV — ships operating in polar waters (Polar Code)", "cross_family": false } ] }, { "qid": "MUM-2026-05-3202-Q002", "text": "What is appendage?", "family": "Ship Construction & Stability", "subtopic": "", "tid": "MUM-2026-05-3202", "tray": "new", "candidates": [ { "answer_id": "SH-332-002", "score": 0.4366166889667511, "sibling_score": 0.4366166889667511, "answer_score": null, "sibling_qid": "MUM-2023-10-0955-Q006", "sibling_text": "tube attachment", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Where superheater tubes are fitted; attachment, support and expansion", "cross_family": true }, { "answer_id": "AVI-SCOPE-004", "score": 0.42476600408554077, "sibling_score": 0.42476600408554077, "answer_score": null, "sibling_qid": "MUM-2026-09-3879-Q001", "sibling_text": "annexes", "sibling_family": "MARPOL - General", "via": "sibling", "answer_title": "Explain MARPOL Annex VI: purpose, scope, chapters/regulations and main onboard requirements.", "cross_family": true }, { "answer_id": "BSBH-420-001", "score": 0.40866559743881226, "sibling_score": 0.40866559743881226, "answer_score": 0.28691173642873763, "sibling_qid": "MUM-2026-08-3828-Q003", "sibling_text": "breast hook", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "What is a breast hook, where is it fitted, and what does it connect at the fore end?", "cross_family": false } ] }, { "qid": "MUM-2026-05-3202-Q005", "text": "What is the purpose of bulbous bow?", "family": "Ship Construction & Stability", "subtopic": "", "tid": "MUM-2026-05-3202", "tray": "new", "candidates": [ { "answer_id": "PPS-230-006", "score": 0.5650392770767212, "sibling_score": 0.5650392770767212, "answer_score": null, "sibling_qid": "MUM-2026-04-0896-Q004", "sibling_text": "bulbous bow how it is attached to ship why it is attached name of the wave which counteracts the original bow wave how bulbous bow improves efficiency", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Fore-end / fore-peak structure: draw and describe", "cross_family": false }, { "answer_id": "SHIPTYPE-BTC-002", "score": 0.4214475452899933, "sibling_score": 0.4214475452899933, "answer_score": 0.3363648921251297, "sibling_qid": "CHE-2025-11-0082-Q008", "sibling_text": "why bow flare is big in container compared to bulk carrier", "sibling_family": "", "via": "sibling", "answer_title": "Why a container ship has more bow flare than a bulk carrier or tanker", "cross_family": false }, { "answer_id": "FWFB-P02-005", "score": 0.41392861008644105, "sibling_score": null, "answer_score": 0.41392861008644105, "sibling_qid": "", "sibling_text": "other members breast hook bulb angle cross tie margin coffin shoe plates breast hook horizontal triangular plate bracket at the bow and aft tying the two sides across the centreline at the stem helps resist panting forward bulb angle bulb flat stiffener a flat bar with a rounded bulb on one edge for added stiffness without a separate flange shell deck and bulkhead stiffening", "sibling_family": "", "via": "answer_title", "answer_title": "Other members: breast hook, bulb angle, cross tie, margin / coffin / shoe plates", "cross_family": false } ] }, { "qid": "MUM-2026-05-3203-Q004", "text": "What is balanced rudder?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "MUM-2026-05-3203", "tray": "new", "candidates": [ { "answer_id": "TRS-001", "score": 0.5790324807167053, "sibling_score": 0.5790324807167053, "answer_score": null, "sibling_qid": "KOL-2019-05-3236-Q005", "sibling_text": "rudder stock twisted how will you balance it how to find changed mishsip position", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "The rudder stock is twisted — how do you proceed, recover the true midship datum, and what regulations let you proceed to the next port?", "cross_family": false }, { "answer_id": "STEER-055-A-004", "score": 0.5660085678100586, "sibling_score": 0.5660085678100586, "answer_score": null, "sibling_qid": "KOL-2019-02-3212-Q005", "sibling_text": "rudder is taking more to come from one side to the other reasons and maintenance", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Hydraulic faults — air, sluggish response, locking, leakage", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.5508820414543152, "sibling_score": 0.5508820414543152, "answer_score": null, "sibling_qid": "MUM-2026-06-3584-Q005", "sibling_text": "what takes weight of rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false } ] }, { "qid": "MUM-2026-05-3205-Q002", "text": "ISPS details and level 2 which year came more details about level 2 & level 3?", "family": "ISPS", "subtopic": "Solas Ch 11 - ISPS Link", "tid": "MUM-2026-05-3205", "tray": "new", "candidates": [ { "answer_id": "ISPS-SL-003", "score": 0.5921233296394348, "sibling_score": 0.5921233296394348, "answer_score": 0.256485578417778, "sibling_qid": "MUM-2026-03-2929-Q009", "sibling_text": "isps level difference between 2 3", "sibling_family": "ISPS", "via": "sibling", "answer_title": "Security levels — who sets them, ship vs port, level 2 vs 3", "cross_family": false }, { "answer_id": "ISPS-SL-004", "score": 0.49197885394096375, "sibling_score": 0.49197885394096375, "answer_score": null, "sibling_qid": "KOL-2025-03-0920-Q002", "sibling_text": "isps howu take consignment in level 2", "sibling_family": "ISPS", "via": "sibling", "answer_title": "Accepting stores, packages and consignments at security level 2", "cross_family": false }, { "answer_id": "ISPS-SL-001", "score": 0.4794237017631531, "sibling_score": 0.4794237017631531, "answer_score": 0.24616340696811675, "sibling_qid": "CHE-2025-09-0300-Q013", "sibling_text": "isps", "sibling_family": "ISPS", "via": "sibling", "answer_title": "The ISPS Code — purpose, scope and the SOLAS link", "cross_family": false } ] }, { "qid": "MUM-2026-05-3206-Q001", "text": "company , pre sea, sailing experience?", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-05-3206", "tray": "review", "candidates": [ { "answer_id": "LLST-AB-002", "score": 0.6520244479179382, "sibling_score": 0.6520244479179382, "answer_score": null, "sibling_qid": "MUM-2026-05-3280-Q001", "sibling_text": "what company and what vessels you have sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.6330837607383728, "sibling_score": 0.6330837607383728, "answer_score": null, "sibling_qid": "MUM-2026-05-3248-Q001", "sibling_text": "introduction sea time company pre sea ship type engine type me", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.5657114386558533, "sibling_score": 0.5657114386558533, "answer_score": null, "sibling_qid": "MUM-2026-01-0677-Q001", "sibling_text": "what type of ships you have sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false } ] }, { "qid": "MUM-2026-05-3206-Q007", "text": "working principle of FWG?", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "MUM-2026-05-3206", "tray": "new", "candidates": [ { "answer_id": "FWG-RO-003", "score": 0.5309606194496155, "sibling_score": 0.5309606194496155, "answer_score": 0.30850124061107637, "sibling_qid": "CHE-2026-05-0533-Q008", "sibling_text": "checks if fwg not getting production", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "The FWG is not producing enough water or its efficiency has dropped. Reasons, checks and action?", "cross_family": false }, { "answer_id": "FWG-RO-001", "score": 0.46900656819343567, "sibling_score": 0.46900656819343567, "answer_score": 0.34726587384939195, "sibling_qid": "MUM-2025-09-1197-Q006", "sibling_text": "fwg working principle did not accept low pressure evaporation and cooling", "sibling_family": "Fresh Water & Domestic Systems", "via": "sibling", "answer_title": "How is vacuum created in the FWG, why does it run under vacuum, and what if the vacuum will not come?", "cross_family": true }, { "answer_id": "FWG-RO-004", "score": 0.434791624546051, "sibling_score": 0.434791624546051, "answer_score": 0.39752737283706663, "sibling_qid": "MUM-2026-03-1305-Q004", "sibling_text": "what is the function of orifice in fwg", "sibling_family": "Fresh Water & Domestic Systems", "via": "sibling", "answer_title": "Explain the FWG's construction — the weir, the feed orifice and its purpose, and the jacket-water temperatures.", "cross_family": true } ] }, { "qid": "MUM-2026-05-3206-Q008", "text": "why vacuum distillation is used?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Zener / Diode / Rectifier", "tid": "MUM-2026-05-3206", "tray": "review", "candidates": [ { "answer_id": "COPT-BF043-004", "score": 0.6797957420349121, "sibling_score": 0.6797957420349121, "answer_score": 0.42486113011837007, "sibling_qid": "MUM-2026-03-1306-Q023", "sibling_text": "why we use vacuum distillation plant", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "4. Why vacuum is necessary, and signs of falling vacuum", "cross_family": true }, { "answer_id": "VAC-COND-001", "score": 0.5111986994743347, "sibling_score": 0.5111986994743347, "answer_score": 0.39519029557704927, "sibling_qid": "MUM-2025-08-2372-Q007", "sibling_text": "why u need vacuum condenser explain thermodynamics of it", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Purpose, working and thermodynamic principle of the vacuum condenser", "cross_family": true }, { "answer_id": "VAC-COND-002", "score": 0.48164403438568115, "sibling_score": 0.48164403438568115, "answer_score": null, "sibling_qid": "CHE-2025-09-0443-Q004", "sibling_text": "copt vacuum condenser vacuum drop reason", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Low vacuum, suction loss and failure to build vacuum — the reasons", "cross_family": true } ] }, { "qid": "MUM-2026-05-3208-Q002", "text": "Balancing of fd fan?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Vibration / Balancing", "tid": "MUM-2026-05-3208", "tray": "new", "candidates": [ { "answer_id": "VIB-BAL-C-FINAL-1-003", "score": 0.5478651523590088, "sibling_score": 0.5478651523590088, "answer_score": null, "sibling_qid": "MUM-2026-07-3766-Q002", "sibling_text": "static balancing", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Static and Dynamic Balancing of the Crankshaft / Shaft", "cross_family": false }, { "answer_id": "PERF-470-005", "score": 0.5107645988464355, "sibling_score": 0.5107645988464355, "answer_score": 0.3074834272265434, "sibling_qid": "MUM-2026-06-3652-Q004", "sibling_text": "power balancing", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main-engine power balancing — procedure", "cross_family": false }, { "answer_id": "VIB-BAL-C-FINAL-1-002", "score": 0.5105811357498169, "sibling_score": 0.5105811357498169, "answer_score": 0.30931794345378877, "sibling_qid": "MUM-2022-11-2715-Q016", "sibling_text": "power balancing", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Power Balancing vs Unbalanced-Force Balancing (Firing Order, Counterweights, V vs Inline)", "cross_family": false } ] }, { "qid": "MUM-2026-05-3208-Q006", "text": "How to Check B.E brg for AE?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankcase Relief Door", "tid": "MUM-2026-05-3208", "tray": "new", "candidates": [ { "answer_id": "AECR-651-001", "score": 0.39563268423080444, "sibling_score": 0.39563268423080444, "answer_score": 0.26651035249233246, "sibling_qid": "MUM-2022-12-1037-Q023", "sibling_text": "checks on con rod of ae", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What checks do you carry out on the connecting rod of an AE / DG — inspection, overhaul checks and the trueness check?", "cross_family": true }, { "answer_id": "SCBA-EEBD-004", "score": 0.3655046224594116, "sibling_score": 0.3655046224594116, "answer_score": null, "sibling_qid": "MUM-2022-09-0049-Q006", "sibling_text": "eebd checks", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "EEBD — regulations, functional requirement and contents", "cross_family": true }, { "answer_id": "AEDEC-291-003", "score": 0.3514888286590576, "sibling_score": 0.3514888286590576, "answer_score": null, "sibling_qid": "KOL-2019-06-3246-Q004", "sibling_text": "starting checks as 2e after ae decarb", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "3. Pre-start checks after decarb / recommissioning", "cross_family": true } ] }, { "qid": "MUM-2026-05-3208-Q008", "text": "ME running, MSWC p/p also running.. How to check performances of p/p..?", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "MUM-2026-05-3208", "tray": "new", "candidates": [ { "answer_id": "CPP-POL-01", "score": 0.5192242860794067, "sibling_score": 0.5192242860794067, "answer_score": null, "sibling_qid": "KOL-2016-11-1838-Q011", "sibling_text": "performance checking of both 2s and 4s and some cross questions", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Why and how is a main-engine performance test prepared, taken and assessed?", "cross_family": true }, { "answer_id": "PCD-P01-05", "score": 0.5035734176635742, "sibling_score": 0.5035734176635742, "answer_score": 0.41107091009616853, "sibling_qid": "MUM-2025-11-1218-Q013", "sibling_text": "how will check the performance of mcsw pump when main engine is running", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Checking centrifugal pump performance — head, flow and the MCSW check with M/E running", "cross_family": true }, { "answer_id": "ICCP-MGPS-002", "score": 0.48945897817611694, "sibling_score": 0.48945897817611694, "answer_score": null, "sibling_qid": "MUM-2026-02-1982-Q005", "sibling_text": "how will you know if your iccp and mgps are performing satisfactorily", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "Knowing ICCP and MGPS are performing satisfactorily", "cross_family": true } ] }, { "qid": "MUM-2026-05-3208-Q010", "text": "During bunkering One tank F. O. Density 0.567 other tank F. O. Density 0. 987 suddenly density?", "family": "Cargo Ops - Tankers", "subtopic": "Cargo Tank Construction", "tid": "MUM-2026-05-3208", "tray": "new", "candidates": [ { "answer_id": "FQCC-583-B-003", "score": 0.6141842007637024, "sibling_score": 0.6141842007637024, "answer_score": 0.5209763646125793, "sibling_qid": "MUM-2026-05-3153-Q012", "sibling_text": "fuel oil density changed from 0 91 to 0 95 of new bunker what action do you take as a 2nd engr", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "New bunker density changed from 0.91 to 0.95 — what action do you take as 2/E?", "cross_family": true }, { "answer_id": "BDI-469-001", "score": 0.6076840162277222, "sibling_score": 0.6076840162277222, "answer_score": 0.4735706150531769, "sibling_qid": "MUM-2026-05-3141-Q001", "sibling_text": "fuel oil density change new bunker", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "New bunker density is higher or different from the previous fuel — your actions", "cross_family": true }, { "answer_id": "COT-12", "score": 0.575593113899231, "sibling_score": 0.575593113899231, "answer_score": 0.4504230171442032, "sibling_qid": "KOL-2016-08-2068-Q012", "sibling_text": "cargo density and tank construction material 4 6", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Cargo density and tanker loading implications", "cross_family": false } ] }, { "qid": "MUM-2026-05-3211-Q003", "text": "External equalising line in refer. Where is it mounted?", "family": "Refrigeration & AC", "subtopic": "Refrigerant Handling / Expansion Valve / Compressor Control Circuit", "tid": "MUM-2026-05-3211", "tray": "review", "candidates": [ { "answer_id": "EQ-LINE-002", "score": 0.8035972118377686, "sibling_score": 0.8035972118377686, "answer_score": 0.47111006975173947, "sibling_qid": "MUM-2026-05-3209-Q003", "sibling_text": "external equalising line in refer where is it mounted", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Where the equalising line is used and connected in a refrigeration plant", "cross_family": false }, { "answer_id": "TEV-TXV-003", "score": 0.5798847675323486, "sibling_score": 0.5798847675323486, "answer_score": 0.3865768417716026, "sibling_qid": "MUM-2026-05-3266-Q002", "sibling_text": "in reefer system where is external equalising line fitted", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Equalizing line — internal vs external equalized TEV", "cross_family": false }, { "answer_id": "EQ-LINE-001", "score": 0.5304791331291199, "sibling_score": 0.5304791331291199, "answer_score": 0.33236016035079957, "sibling_qid": "NOI-2026-09-0009-Q005", "sibling_text": "tev working equalising line", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Purpose and function of the equalising line / equalising valve in refrigeration service", "cross_family": false } ] }, { "qid": "MUM-2026-05-3211-Q008", "text": "Risk assessment and risk management?", "family": "Risk & Safety Management", "subtopic": "Risk Assessment / Management", "tid": "MUM-2026-05-3211", "tray": "review", "candidates": [ { "answer_id": "RA-MGMT-A-001", "score": 0.7775815725326538, "sibling_score": 0.7775815725326538, "answer_score": 0.5442827939987183, "sibling_qid": "KOL-2022-05-0634-Q004", "sibling_text": "what is risk what is risk management steps involved to achieve risk assessment", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "What is risk, what is hazard, and what is risk assessment?", "cross_family": false }, { "answer_id": "RISK-RA-D-002", "score": 0.7732412219047546, "sibling_score": 0.7732412219047546, "answer_score": 0.5238312780857086, "sibling_qid": "MUM-2026-01-2526-Q002", "sibling_text": "risk assessment and risk management many cross", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "RA-MGMT-B-001", "score": 0.7642884850502014, "sibling_score": 0.7642884850502014, "answer_score": null, "sibling_qid": "MUM-2023-08-2183-Q001", "sibling_text": "risk assesement", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "How is a shipboard risk assessment prepared and carried out?", "cross_family": false } ] }, { "qid": "MUM-2026-05-3212-Q001", "text": "Type of ship?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-05-3212", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.837036669254303, "sibling_score": 0.837036669254303, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8018087148666382, "sibling_score": 0.8018087148666382, "answer_score": 0.5473707109689713, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8005447387695312, "sibling_score": 0.8005447387695312, "answer_score": 0.5217237085103988, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2026-05-3212-Q002", "text": "Main engine type?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-05-3212", "tray": "review", "candidates": [ { "answer_id": "ENG-NOM-005", "score": 0.7759196758270264, "sibling_score": 0.7759196758270264, "answer_score": null, "sibling_qid": "MUM-2026-09-3880-Q001", "sibling_text": "main engine type", "sibling_family": "2-Stroke - Operations & General", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true }, { "answer_id": "CTRL-TL-002", "score": 0.7374319434165955, "sibling_score": 0.7374319434165955, "answer_score": null, "sibling_qid": "MUM-2026-03-1988-Q001", "sibling_text": "type of main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Function of a controller, and types used on board", "cross_family": false }, { "answer_id": "ETP-344-P03-001", "score": 0.7289009690284729, "sibling_score": 0.7289009690284729, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false } ] }, { "qid": "MUM-2026-05-3212-Q007", "text": "Sealer plate?", "family": "Ship Construction & Stability", "subtopic": "", "tid": "MUM-2026-05-3212", "tray": "new", "candidates": [ { "answer_id": "SHELL-PLT-B-002", "score": 0.552495539188385, "sibling_score": 0.552495539188385, "answer_score": null, "sibling_qid": "MUM-2026-09-3958-Q005", "sibling_text": "stealer plate", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Stealer plate and strake nesting", "cross_family": false }, { "answer_id": "PTHE-003", "score": 0.5339549779891968, "sibling_score": 0.5339549779891968, "answer_score": null, "sibling_qid": "MUM-2026-06-3512-Q006", "sibling_text": "plate type heat exchanger sealing arrangement", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Opening, cleaning, overhaul, plate alignment and reassembly", "cross_family": true }, { "answer_id": "MARGIN-LINE-001", "score": 0.5218925476074219, "sibling_score": 0.5218925476074219, "answer_score": null, "sibling_qid": "MUM-2026-04-0880-Q002", "sibling_text": "margine plate", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "What is the margin line, and what is its purpose?", "cross_family": false } ] }, { "qid": "MUM-2026-05-3213-Q001", "text": "Introduction and type of ship?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-05-3213", "tray": "review", "candidates": [ { "answer_id": "LLST-AB-001", "score": 0.7347478270530701, "sibling_score": 0.7347478270530701, "answer_score": 0.4880707383155823, "sibling_qid": "CHE-2026-02-0109-Q001", "sibling_text": "type of ship explain what type is your vessel explain their type and difference", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.7196604609489441, "sibling_score": 0.7196604609489441, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.6886298060417175, "sibling_score": 0.6886298060417175, "answer_score": 0.4831991970539093, "sibling_qid": "MUM-2026-02-0731-Q002", "sibling_text": "what type of ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2026-05-3213-Q004", "text": "⁠precautions to be taken while entering chain locker?", "family": "Auxiliary Equipment", "subtopic": "", "tid": "MUM-2026-05-3213", "tray": "new", "candidates": [ { "answer_id": "ANCHR-B-004", "score": 0.627652645111084, "sibling_score": 0.627652645111084, "answer_score": null, "sibling_qid": "KOC-2026-04-0906-Q008", "sibling_text": "regulations regarding chain locker", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Chain locker, spurling pipe & bitter-end securing", "cross_family": false }, { "answer_id": "CHAIN-TENS-A-004", "score": 0.5886309742927551, "sibling_score": 0.5886309742927551, "answer_score": 0.4443461298942566, "sibling_qid": "MUM-2026-07-3842-Q005", "sibling_text": "chain locker inspection what all checks", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Chain-Case / Chain-Drive Inspection", "cross_family": false }, { "answer_id": "ANCH-CHN-A-003", "score": 0.5411107540130615, "sibling_score": 0.5411107540130615, "answer_score": null, "sibling_qid": "MUM-2026-06-3653-Q012", "sibling_text": "chain locker and anchor chain measurement", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Equipment Number & how cable length is decided", "cross_family": false } ] }, { "qid": "MUM-2026-05-3213-Q006", "text": "⁠stellar strake?", "family": "SOLAS", "subtopic": "Shell Plating / Strakes", "tid": "MUM-2026-05-3213", "tray": "new", "candidates": [ { "answer_id": "SHELL-PLT-B-001", "score": 0.5883699655532837, "sibling_score": 0.5883699655532837, "answer_score": 0.2802884131669998, "sibling_qid": "CHE-2024-10-0509-Q007", "sibling_text": "garboard strake shear strake stellar strake", "sibling_family": "", "via": "sibling", "answer_title": "Sheer strake — location, why strengthened, deck-edge / gunwale connection", "cross_family": false }, { "answer_id": "SHELL-PLT-B-002", "score": 0.5627126097679138, "sibling_score": 0.5627126097679138, "answer_score": 0.3095232084393501, "sibling_qid": "KOC-2026-02-0804-Q007S2", "sibling_text": "strakes", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Stealer plate and strake nesting", "cross_family": false }, { "answer_id": "SHELL-PLT-A-002", "score": 0.5508888959884644, "sibling_score": 0.5508888959884644, "answer_score": 0.29483213275671005, "sibling_qid": "MUM-2025-01-2786-Q001", "sibling_text": "steelar strake", "sibling_family": "", "via": "sibling", "answer_title": "Shell plating, strakes, and the named strakes", "cross_family": false } ] }, { "qid": "MUM-2026-05-3213-Q007", "text": "⁠what is a dead ship?", "family": "Electrical - Generator & Alternator", "subtopic": "Black Out Test / Recovery", "tid": "MUM-2026-05-3213", "tray": "review", "candidates": [ { "answer_id": "BOT-003", "score": 0.6773149371147156, "sibling_score": 0.6773149371147156, "answer_score": 0.4549828231334686, "sibling_qid": "MUM-2026-05-3225-Q003", "sibling_text": "dead ship means and within how many time take to recover", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "What does dead ship condition mean, what is the dead ship recovery procedure, within what time must propulsion be restored, and what survey and preparation apply?", "cross_family": false }, { "answer_id": "TONN-003", "score": 0.49234887957572937, "sibling_score": 0.49234887957572937, "answer_score": null, "sibling_qid": "MUM-2022-12-0078-Q003", "sibling_text": "what is deadweight how much of ur ships", "sibling_family": "", "via": "sibling", "answer_title": "Deadweight Tonnage (DWT) — definition and calculation", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.474985271692276, "sibling_score": 0.474985271692276, "answer_score": null, "sibling_qid": "CHE-2026-02-0478-Q004", "sibling_text": "this type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": true } ] }, { "qid": "MUM-2026-05-3214-Q001", "text": "ODMCS Rule and Regulations asked by AKC?", "family": "MARPOL - Annex I (Oil)", "subtopic": "", "tid": "MUM-2026-05-3214", "tray": "new", "candidates": [ { "answer_id": "ODC-013", "score": 0.5331647396087646, "sibling_score": 0.5331647396087646, "answer_score": 0.30244765877723695, "sibling_qid": "CHE-2026-03-0131-Q004", "sibling_text": "odmcs regulation", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "ODMCS / ODME — purpose, components and working principle", "cross_family": false }, { "answer_id": "ODC-015", "score": 0.4603031277656555, "sibling_score": 0.4603031277656555, "answer_score": 0.34114756882190705, "sibling_qid": "KOC-2024-01-0288-Q001", "sibling_text": "odmcs criteria", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "ODMCS discharge criteria — the interlock, the ppm requirement and what stops the valve", "cross_family": false }, { "answer_id": "OWS-15PPM-002", "score": 0.4250165820121765, "sibling_score": 0.4250165820121765, "answer_score": null, "sibling_qid": "KOC-2025-10-0667-Q007", "sibling_text": "what are the regulations for ows", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "MUM-2026-05-3214-Q002", "text": "Parameters recorded by Control system and lot of cross questions?", "family": "2-Stroke - Reversing & Maneuvering", "subtopic": "EICU / Manoeuvring System", "tid": "MUM-2026-05-3214", "tray": "review", "candidates": [ { "answer_id": "CYL-LUB-A-002", "score": 0.6545075178146362, "sibling_score": 0.6545075178146362, "answer_score": 0.3828025549650192, "sibling_qid": "KOL-2022-10-1926-Q003", "sibling_text": "cross what controlled and how parameters are decided", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Feed-rate control — quantity, timing and load/rpm-dependent dosing", "cross_family": true }, { "answer_id": "EGCS-393-003", "score": 0.5881330370903015, "sibling_score": 0.5881330370903015, "answer_score": 0.3884906217455864, "sibling_qid": "MUM-2024-09-2771-Q005", "sibling_text": "scrubber which all parameters do you record", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Monitored parameters, records and washwater discharge criteria", "cross_family": true }, { "answer_id": "PID-CTRL-005", "score": 0.5866978764533997, "sibling_score": 0.5866978764533997, "answer_score": null, "sibling_qid": "KOL-2019-12-1879-Q002", "sibling_text": "pid control details where used n cross q", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Open-loop, closed-loop, cascade and other control types onboard", "cross_family": true } ] }, { "qid": "MUM-2026-05-3214-Q005", "text": "Explain Steam driven COPT safety during discharging?", "family": "Cargo Ops - Tankers", "subtopic": "COPT", "tid": "MUM-2026-05-3214", "tray": "new", "candidates": [ { "answer_id": "CPS-316-004", "score": 0.578795850276947, "sibling_score": 0.578795850276947, "answer_score": null, "sibling_qid": "MUM-2026-02-0791-Q005", "sibling_text": "safeties while discharging cargo", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Cargo-system alarms, trips, safeties, emergency stops and monitoring during discharge", "cross_family": false }, { "answer_id": "COT-P03-05", "score": 0.5554938912391663, "sibling_score": 0.5554938912391663, "answer_score": null, "sibling_qid": "MUM-2026-01-0701-Q001", "sibling_text": "ig and cargo alarms and trip before dischargeing", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Alarms, trips and interlocks of the IG and cargo-pumping systems tested before discharge — and how, safely", "cross_family": false }, { "answer_id": "TCM-374-005", "score": 0.5547775626182556, "sibling_score": 0.5547775626182556, "answer_score": null, "sibling_qid": "KOL-2016-11-0023-Q002", "sibling_text": "tanker gas freeing how exactly done hazards during loading discharging fire hazard during discharging cargo", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Gas-freeing a tanker after discharge or before dry dock (why through the IG system)", "cross_family": false } ] }, { "qid": "MUM-2026-05-3214-Q010", "text": "ECA criteria of ship?", "family": "MARPOL - Annex I (Oil)", "subtopic": "", "tid": "MUM-2026-05-3214", "tray": "new", "candidates": [ { "answer_id": "CII-RATE-P02-002", "score": 0.5921247601509094, "sibling_score": 0.5921247601509094, "answer_score": 0.4642770230770111, "sibling_qid": "MUM-2025-01-0239-Q006", "sibling_text": "ship is rated e category what to do as 2e and one or two more", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "2. Corrective action when the ship is rated D or E", "cross_family": true }, { "answer_id": "EEDI-A-003", "score": 0.5469602346420288, "sibling_score": 0.5469602346420288, "answer_score": null, "sibling_qid": "MUM-2026-09-3981-Q017", "sibling_text": "eedi compliance of ur ship", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Which ships EEDI applies to — scope, exemptions and amendments", "cross_family": true }, { "answer_id": "OWS-15PPM-007", "score": 0.5461560487747192, "sibling_score": 0.5461560487747192, "answer_score": null, "sibling_qid": "KOL-2022-12-0706-Q005", "sibling_text": "ows requirement of ships 10k dwt and above", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "MUM-2026-05-3215-Q005", "text": "Type of propeller used and propeller nomenclature?", "family": "General Marine Engineering", "subtopic": "Shafting / Propeller / CPP", "tid": "MUM-2026-05-3215", "tray": "review", "candidates": [ { "answer_id": "SHAFT-CPP-003", "score": 0.7118826508522034, "sibling_score": 0.7118826508522034, "answer_score": null, "sibling_qid": "KOL-2024-12-0897-Q006", "sibling_text": "cpl propeller", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "3. CPP — working, construction, oil channel, feedback & emergency", "cross_family": false }, { "answer_id": "SHAFT-CPP-001", "score": 0.6983456611633301, "sibling_score": 0.6983456611633301, "answer_score": null, "sibling_qid": "MUM-2026-02-2928-Q003", "sibling_text": "propeller curve 4 catfines", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "1. Propeller curve & load diagram", "cross_family": false }, { "answer_id": "SPR-STERN-006", "score": 0.6969733238220215, "sibling_score": 0.6969733238220215, "answer_score": 0.5934622377157212, "sibling_qid": "MUM-2022-09-0047-Q006", "sibling_text": "propeller types", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Propeller types & special propulsors", "cross_family": true } ] }, { "qid": "MUM-2026-05-3216-Q002", "text": "how is sounding pipe on deck attached to main deck. He wants to know specific details?", "family": "Tank Calibration & Sounding", "subtopic": "Sounding Pipe Arrangements", "tid": "MUM-2026-05-3216", "tray": "new", "candidates": [ { "answer_id": "FFF-A-003", "score": 0.5401080250740051, "sibling_score": 0.5401080250740051, "answer_score": null, "sibling_qid": "CHE-2026-04-0148-Q001", "sibling_text": "fire main fittings on deck", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fire main, hydrants, isolating and deck valves, and fire-line fittings", "cross_family": true }, { "answer_id": "STS-P02-003", "score": 0.5188809633255005, "sibling_score": 0.5188809633255005, "answer_score": null, "sibling_qid": "CHE-2026-04-0518-Q013", "sibling_text": "decider po how stern tube is attached to the ship", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "STS-P02-03 - Stern tube arrangement, fitting in hull and shaft support", "cross_family": true }, { "answer_id": "FWFB-P02-002", "score": 0.5079770088195801, "sibling_score": 0.5079770088195801, "answer_score": null, "sibling_qid": "KOC-2022-10-0107-Q004", "sibling_text": "how tank top is connected to deck", "sibling_family": "", "via": "sibling", "answer_title": "Double-bottom floors in longitudinal framing; tank-top to deck load path", "cross_family": false } ] }, { "qid": "MUM-2026-05-3216-Q003", "text": "Green Light Bd Red light in watertight door?", "family": "SOLAS - Watertight & Closing Appliances", "subtopic": "Watertight Door", "tid": "MUM-2026-05-3216", "tray": "new", "candidates": [ { "answer_id": "WEATH-545-001", "score": 0.5264478921890259, "sibling_score": 0.5264478921890259, "answer_score": null, "sibling_qid": "MUM-2026-09-3882-Q006", "sibling_text": "water tight door", "sibling_family": "SOLAS - Watertight & Closing Appliances", "via": "sibling", "answer_title": "What is weathertight, and how does it differ from watertight — meaning, application, location and testing?", "cross_family": false }, { "answer_id": "WTD-003", "score": 0.5105573534965515, "sibling_score": 0.5105573534965515, "answer_score": null, "sibling_qid": "KOL-2025-03-0918-Q002", "sibling_text": "water tight door emergency operation", "sibling_family": "SOLAS - Watertight & Closing Appliances", "via": "sibling", "answer_title": "Bridge/master mode, local/closed mode, and emergency operation", "cross_family": false }, { "answer_id": "WTD-001", "score": 0.47890663146972656, "sibling_score": 0.47890663146972656, "answer_score": 0.3275415629148483, "sibling_qid": "KOL-2025-11-1129-Q005", "sibling_text": "watertight door regulations", "sibling_family": "SOLAS - Watertight & Closing Appliances", "via": "sibling", "answer_title": "What watertight doors are, the types fitted, and the SOLAS/Class requirements", "cross_family": false } ] }, { "qid": "MUM-2026-05-3217-Q001", "text": "Type of engine worked?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-05-3217", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.7857028245925903, "sibling_score": 0.7857028245925903, "answer_score": null, "sibling_qid": "KOL-2026-03-2048-Q001", "sibling_text": "type of engine done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "MCC-MEB-P01-001", "score": 0.7583000063896179, "sibling_score": 0.7583000063896179, "answer_score": null, "sibling_qid": "MUM-2026-09-3997-Q002", "sibling_text": "type of engine worked me mcc me b and rta", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "MC-C (\"Compact\") engine — design and the main constructional differences from MC", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.7341704964637756, "sibling_score": 0.7341704964637756, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false } ] }, { "qid": "MUM-2026-05-3217-Q019", "text": "How refrigerate gas decides?", "family": "Refrigeration & AC", "subtopic": "", "tid": "MUM-2026-05-3217", "tray": "new", "candidates": [ { "answer_id": "REEF-CHG-001", "score": 0.6267766356468201, "sibling_score": 0.6267766356468201, "answer_score": null, "sibling_qid": "CHE-2025-08-0429-Q004", "sibling_text": "how you will charge gas in refrigeration", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "01Charging or replenishing the refrigerant in a refrigeration / AC plant", "cross_family": false }, { "answer_id": "REF-CYC-001", "score": 0.6250923275947571, "sibling_score": 0.6250923275947571, "answer_score": null, "sibling_qid": "MUM-2025-09-2846-Q008", "sibling_text": "how to select refrigirant", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "1. The vapour-compression refrigeration cycle and refrigerant flow", "cross_family": false }, { "answer_id": "AIR-REF-004", "score": 0.6206491589546204, "sibling_score": 0.6206491589546204, "answer_score": null, "sibling_qid": "KOC-2024-08-1857-Q003", "sibling_text": "air in refrigeration system how you get to know and what you will do", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "4. Detecting and purging air from a refrigeration system", "cross_family": false } ] }, { "qid": "MUM-2026-05-3219-Q007", "text": "Air compressor running continuously with low load reason?", "family": "Air Compressor", "subtopic": "MAC / Air Compressor", "tid": "MUM-2026-05-3219", "tray": "review", "candidates": [ { "answer_id": "MAC-353-004", "score": 0.7664199471473694, "sibling_score": 0.7664199471473694, "answer_score": 0.5395690709352493, "sibling_qid": "MUM-2022-12-1036-Q006", "sibling_text": "compressor running continuously reasons", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Main air compressor running continuously or for too long — causes and checks", "cross_family": false }, { "answer_id": "MAC-598-003", "score": 0.7464240193367004, "sibling_score": 0.7464240193367004, "answer_score": 0.5196613311767578, "sibling_qid": "MUM-2022-10-2713-Q006", "sibling_text": "compressor running continuously", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "The compressor is not filling the bottle, or is taking longer than usual, or running continuously on low amps — checks and actions as 2/E", "cross_family": false }, { "answer_id": "ACSS-002", "score": 0.6855748295783997, "sibling_score": 0.6855748295783997, "answer_score": null, "sibling_qid": "KOL-2022-02-1660-Q004", "sibling_text": "compressor safeties prolonged running of air compressor reasons", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Relief / safety valves: settings, testing, lifting reasons; bursting disc", "cross_family": false } ] }, { "qid": "MUM-2026-05-3219-Q008", "text": "Air dryer not working what to do?", "family": "Auxiliary Equipment", "subtopic": "General Auxiliary Machinery", "tid": "MUM-2026-05-3219", "tray": "new", "candidates": [ { "answer_id": "SAE-388-003", "score": 0.5420029163360596, "sibling_score": 0.5420029163360596, "answer_score": null, "sibling_qid": "MUM-2025-11-2876-Q002", "sibling_text": "st air line getting hot your first action as 2e he wanted close valve me air valve and drain line thats it", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "The starting air line is getting hot, or a starting valve is leaking — your action as 2nd Engineer?", "cross_family": true }, { "answer_id": "RAC-MAT-320-006", "score": 0.5402938723564148, "sibling_score": 0.5402938723564148, "answer_score": null, "sibling_qid": "KOL-2021-08-1623-Q009", "sibling_text": "restart the ac plant don t know", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "6. Starting, restart after work, post-maintenance checks and plant efficiency", "cross_family": true }, { "answer_id": "REEF-CHG-004", "score": 0.5366846323013306, "sibling_score": 0.5366846323013306, "answer_score": null, "sibling_qid": "MUM-2026-03-2651-Q003", "sibling_text": "gas charge from dryer in refer", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "04Where refrigerant is charged, and purging the charging line without releasing refrigerant", "cross_family": true } ] }, { "qid": "MUM-2026-05-3220-Q001", "text": "Water coming from all unit in AE?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Water from Indicator Cock", "tid": "MUM-2026-05-3220", "tray": "new", "candidates": [ { "answer_id": "SEA-CHEST-006", "score": 0.5346213579177856, "sibling_score": 0.5346213579177856, "answer_score": null, "sibling_qid": "MUM-2026-01-2527-Q004", "sibling_text": "ae water coming out from all indicator cocks what action", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "2/E actions: leak, crack, fouling, stuck valve, valve-life", "cross_family": false }, { "answer_id": "TPC-FWA-007", "score": 0.45952558517456055, "sibling_score": 0.45952558517456055, "answer_score": null, "sibling_qid": "CHE-2026-04-0165-Q002", "sibling_text": "water plan area", "sibling_family": "", "via": "sibling", "answer_title": "Waterplane area, and its relation to TPC", "cross_family": false }, { "answer_id": "WIDAS-SMK-002", "score": 0.44287341833114624, "sibling_score": 0.44287341833114624, "answer_score": null, "sibling_qid": "KOC-2025-10-0670-Q027", "sibling_text": "widas how water entering into hold", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "WIDAS purpose and the three protected spaces", "cross_family": true } ] }, { "qid": "MUM-2026-05-3221-Q001", "text": "Type of ship?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-05-3221", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8362272381782532, "sibling_score": 0.8362272381782532, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8015320897102356, "sibling_score": 0.8015320897102356, "answer_score": 0.5472018480300903, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8003027439117432, "sibling_score": 0.8003027439117432, "answer_score": 0.5214664876461029, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2026-05-3224-Q001", "text": "Safety for bulky as per solas (explained ch12- widas)?", "family": "SOLAS - General (HOLD)", "subtopic": "Solas Chapter 12 - Bulk", "tid": "MUM-2026-05-3224", "tray": "new", "candidates": [ { "answer_id": "SOLAS12-BC-B-001", "score": 0.5260165929794312, "sibling_score": 0.5260165929794312, "answer_score": null, "sibling_qid": "KOL-2021-01-0459-Q004", "sibling_text": "additional safeties in bulk carrier according to chapter12 of solas", "sibling_family": "", "via": "sibling", "answer_title": "Additional safety measures for bulk carriers (SOLAS Chapter XII)", "cross_family": false }, { "answer_id": "SOLAS12-BC-E-001", "score": 0.5035876631736755, "sibling_score": 0.5035876631736755, "answer_score": null, "sibling_qid": "KOC-2025-06-0608-Q005", "sibling_text": "solas chapter 12 all regulations explain damage stability requirements of bulk carrier widas", "sibling_family": "", "via": "sibling", "answer_title": "Water ingress detection & alarm system (WIDAS) — SOLAS XII/12", "cross_family": false }, { "answer_id": "SOLAS12-C-001", "score": 0.49387672543525696, "sibling_score": 0.49387672543525696, "answer_score": null, "sibling_qid": "KOC-2021-09-0026-Q011", "sibling_text": "bulkcarrier safties chapter 12", "sibling_family": "", "via": "sibling", "answer_title": "Explain SOLAS Chapter XII for bulk carriers — oral-exam overview", "cross_family": false } ] }, { "qid": "MUM-2026-05-3224-Q003", "text": "Why freefall lifeboat in bulk carrier?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Lifeboat", "tid": "MUM-2026-05-3224", "tray": "review", "candidates": [ { "answer_id": "LB-D-003", "score": 0.7095180153846741, "sibling_score": 0.7095180153846741, "answer_score": 0.5855845510959625, "sibling_qid": "KOL-2017-04-0081-Q006", "sibling_text": "new type of lifeboat found in bulk carriers he meant free fall lifeboat regulations for free fall lifeboat wanted to hear something regarding stowage as he kept asking will you be able to launh lifeboat if stern is damaged", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Free-fall lifeboat — why this type, why at the stern, stowage", "cross_family": false }, { "answer_id": "LDL-617-004", "score": 0.6999830007553101, "sibling_score": 0.6999830007553101, "answer_score": 0.5279239118099213, "sibling_qid": "KOL-2021-07-2468-Q005", "sibling_text": "free fall lifeboat lowering arrangement checks if port doesn t allow to lower it full", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Free-fall lifeboat — launch, and checks when the port will not allow a full drop", "cross_family": false }, { "answer_id": "LB-D-002", "score": 0.6798891425132751, "sibling_score": 0.6798891425132751, "answer_score": 0.5103214830160141, "sibling_qid": "KOL-2026-07-4287-Q003", "sibling_text": "freefall lifeboat launching arrangement", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Free-fall lifeboat — launching procedure and mechanism", "cross_family": false } ] }, { "qid": "MUM-2026-05-3226-Q003", "text": "When your boiler is running you find oil in the observation tank, what are your actions?", "family": "Boilers - Feed Water & Water Treatment", "subtopic": "Oil Contamination in Boiler Water", "tid": "MUM-2026-05-3226", "tray": "review", "candidates": [ { "answer_id": "SBD-001", "score": 0.770082950592041, "sibling_score": 0.770082950592041, "answer_score": 0.6197071254253387, "sibling_qid": "CHE-2026-03-0495-Q002", "sibling_text": "boiler observation tank purpose and action if u find oil in the observation tank", "sibling_family": "Boilers - Feed Water & Water Treatment", "via": "sibling", "answer_title": "You find oil in the boiler gauge glass — causes, how you identify the source, and your actions as 2/E (including if manoeuvring). What is carryover?", "cross_family": false }, { "answer_id": "CASC-COND-005", "score": 0.7022049427032471, "sibling_score": 0.7022049427032471, "answer_score": null, "sibling_qid": "MUM-2025-07-2815-Q009", "sibling_text": "boiler observation tank have oil action", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Why there is an observation tank and where it is, and the cascade tank and cascade system explained", "cross_family": true }, { "answer_id": "CC-RELIEF-312-002", "score": 0.6841462850570679, "sibling_score": 0.6841462850570679, "answer_score": null, "sibling_qid": "MUM-2026-02-2919-Q010", "sibling_text": "oil in observation tank not accepting if you say oil coming from fuel tanks or from steam traps motor pass mep repeat", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Crankcase / camcase inspection — checks and contamination", "cross_family": true } ] }, { "qid": "MUM-2026-05-3227-Q003", "text": "Brittle failure and conditions when it happens?", "family": "NDT & Material Testing", "subtopic": "Ductile-Brittle Transition", "tid": "MUM-2026-05-3227", "tray": "new", "candidates": [ { "answer_id": "CFF-P02-001", "score": 0.6452831625938416, "sibling_score": 0.6452831625938416, "answer_score": 0.36121839582920073, "sibling_qid": "MUM-2026-05-3227-Q012", "sibling_text": "and do brittle failure is a fatigue failure", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Fatigue failure — what it is and where it occurs", "cross_family": false }, { "answer_id": "DBT-490-002", "score": 0.6223679780960083, "sibling_score": 0.6223679780960083, "answer_score": 0.3817421332001686, "sibling_qid": "MUM-2026-05-3207-Q002", "sibling_text": "brittle", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Explain brittle fracture", "cross_family": false }, { "answer_id": "CREEP-FAT-P01-001", "score": 0.5779890418052673, "sibling_score": 0.5779890418052673, "answer_score": null, "sibling_qid": "KOC-2021-05-0936-Q003", "sibling_text": "creep failure", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "What is creep, and where does it occur in a marine engine?", "cross_family": false } ] }, { "qid": "MUM-2026-05-3227-Q010", "text": "What is use of jumping bar?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Drop", "tid": "MUM-2026-05-3227", "tray": "new", "candidates": [ { "answer_id": "RUD-DROP-002", "score": 0.5365339517593384, "sibling_score": 0.5365339517593384, "answer_score": null, "sibling_qid": "KOL-2021-04-3393-Q004", "sibling_text": "4 jumping bar position", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Rudder clearances: which, where and how taken", "cross_family": false }, { "answer_id": "RUN-CLR-003", "score": 0.527438223361969, "sibling_score": 0.527438223361969, "answer_score": 0.3160512074828148, "sibling_qid": "KOC-2026-05-2137-Q003", "sibling_text": "why jumping clearance", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Jumping clearance — how it is measured and where it is checked", "cross_family": false }, { "answer_id": "RVSG-213-005", "score": 0.45450878143310547, "sibling_score": 0.45450878143310547, "answer_score": 0.29057684242725373, "sibling_qid": "KOC-2026-05-2136-Q001", "sibling_text": "jumping clearance increased or decreased what happen", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Jumping clearance, thrust accommodation, stock connection & overhaul", "cross_family": false } ] }, { "qid": "MUM-2026-05-3228-Q001", "text": "Main engine type?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-05-3228", "tray": "review", "candidates": [ { "answer_id": "ENG-NOM-005", "score": 0.7755159139633179, "sibling_score": 0.7755159139633179, "answer_score": null, "sibling_qid": "MUM-2026-09-3880-Q001", "sibling_text": "main engine type", "sibling_family": "2-Stroke - Operations & General", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true }, { "answer_id": "CTRL-TL-002", "score": 0.7370266318321228, "sibling_score": 0.7370266318321228, "answer_score": null, "sibling_qid": "MUM-2026-03-1988-Q001", "sibling_text": "type of main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Function of a controller, and types used on board", "cross_family": false }, { "answer_id": "ETP-344-P03-001", "score": 0.7286311984062195, "sibling_score": 0.7286311984062195, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false } ] }, { "qid": "MUM-2026-05-3228-Q009", "text": "What is degree of sub cooling?", "family": "Refrigeration & AC", "subtopic": "Sub-cooling / Superheat", "tid": "MUM-2026-05-3228", "tray": "review", "candidates": [ { "answer_id": "REF-SCSH-001", "score": 0.6988392472267151, "sibling_score": 0.6988392472267151, "answer_score": 0.510625821352005, "sibling_qid": "MUM-2026-07-3789-Q004", "sibling_text": "degree of subcooling", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Subcooling in refrigeration — meaning, purpose, significance and expected values", "cross_family": false }, { "answer_id": "REF-CYC-006", "score": 0.6713356375694275, "sibling_score": 0.6713356375694275, "answer_score": 0.4350356668233871, "sibling_qid": "MUM-2026-05-3245-Q002", "sibling_text": "sub cooling", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "6. Saturation temperature, subcooling, superheat and dryness fraction", "cross_family": false }, { "answer_id": "REF-CYC-009", "score": 0.6445439457893372, "sibling_score": 0.6445439457893372, "answer_score": 0.35948262363672256, "sibling_qid": "KOC-2024-08-1002-Q008", "sibling_text": "degree of subcooling show in ph curve", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "The refrigeration cycle on the P-H diagram — saturation curve, saturated vapour pressure, subcooling", "cross_family": false } ] }, { "qid": "MUM-2026-05-3231-Q001", "text": "What is SRFP & SRP PLAN?", "family": "Other Conventions", "subtopic": "Hong Kong Convention / IHM", "tid": "MUM-2026-05-3231", "tray": "new", "candidates": [ { "answer_id": "ISPS-SSP-P02-003", "score": 0.32756006717681885, "sibling_score": 0.32756006717681885, "answer_score": null, "sibling_qid": "KOC-2023-05-0191-Q004", "sibling_text": "isps difference between assessment and plan then about ssp who all are involved in isps", "sibling_family": "ISPS", "via": "sibling", "answer_title": "Ship Security Assessment (SSA) and its relationship with the SSP", "cross_family": true }, { "answer_id": "SFOC-001", "score": 0.32538264989852905, "sibling_score": 0.32538264989852905, "answer_score": null, "sibling_qid": "CHE-2025-11-0083-Q005", "sibling_text": "what is sfc", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What is SFOC? Definition, formula, unit — and how you get the corrected density", "cross_family": true }, { "answer_id": "GA-GI-DWG-003", "score": 0.32188883423805237, "sibling_score": 0.32188883423805237, "answer_score": null, "sibling_qid": "KOL-2025-07-0978-Q008", "sibling_text": "what is sheer plan", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "3. What is a sheer plan and why is it needed in drydock?", "cross_family": true } ] }, { "qid": "MUM-2026-05-3231-Q004", "text": "Manual release of life raft?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Liferaft / HRU", "tid": "MUM-2026-05-3231", "tray": "review", "candidates": [ { "answer_id": "DRG-583-A-001", "score": 0.6867116689682007, "sibling_score": 0.6867116689682007, "answer_score": null, "sibling_qid": "MUM-2024-08-0190-Q004", "sibling_text": "lifeboat release", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "On-load and off-load release: what each one is, and why both are fitted", "cross_family": false }, { "answer_id": "LRHR-B-008", "score": 0.6835601329803467, "sibling_score": 0.6835601329803467, "answer_score": 0.4407893180847168, "sibling_qid": "KOL-2018-01-0143-Q002", "sibling_text": "liferaft manual launching", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Take me through launching and inflating the liferaft manually.", "cross_family": false }, { "answer_id": "LRHR-B-010", "score": 0.6724827885627747, "sibling_score": 0.6724827885627747, "answer_score": null, "sibling_qid": "KOL-2026-02-1173-Q002", "sibling_text": "life raft automatic release mechanism name working and needs to hear weak link", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Explain the HRU's operating principle and full operation. Draw it.", "cross_family": false } ] }, { "qid": "MUM-2026-05-3232-Q005", "text": "ESP code regarding in-water survey?", "family": "Surveys - Statutory", "subtopic": "ESP / Enhanced Survey", "tid": "MUM-2026-05-3232", "tray": "new", "candidates": [ { "answer_id": "IWS-001", "score": 0.6484560966491699, "sibling_score": 0.6484560966491699, "answer_score": null, "sibling_qid": "MUM-2024-01-0156-Q007", "sibling_text": "when underwater survey is done when in water survey is done", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Difference between in-water survey (IWS) and underwater survey/inspection — and when each is done", "cross_family": true }, { "answer_id": "DDHSC-002", "score": 0.6472538709640503, "sibling_score": 0.6472538709640503, "answer_score": null, "sibling_qid": "KOC-2023-02-1807-Q006", "sibling_text": "underwater survey as 2 e internal no questions", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Explain the underwater hull inspection and checks carried out as Second Engineer during drydock.", "cross_family": true }, { "answer_id": "IWS-002", "score": 0.646366536617279, "sibling_score": 0.646366536617279, "answer_score": 0.4289725601673126, "sibling_qid": "MUM-2025-12-2501-Q006", "sibling_text": "inwater survey how to carry out as 2e", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "In-water survey procedure as 2/E — checks, equipment, and thickness measurement", "cross_family": true } ] }, { "qid": "MUM-2026-05-3235-Q005", "text": "Propeller fitment. How will ensure correct position and push up distance achieved. On what all factors push up distance occurs?", "family": "Steering Gear & Hydraulics", "subtopic": "Counter-Balance Valve", "tid": "MUM-2026-05-3235", "tray": "review", "candidates": [ { "answer_id": "PROP-PN-B-003", "score": 0.7259061336517334, "sibling_score": 0.7259061336517334, "answer_score": 0.4632979422807693, "sibling_qid": "MUM-2026-06-3604-Q001", "sibling_text": "how propeller fitted what is push up distance", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Push-up: how much, from where, and why not more or less", "cross_family": true }, { "answer_id": "PROP-PIL-A-001", "score": 0.6456591486930847, "sibling_score": 0.6456591486930847, "answer_score": null, "sibling_qid": "KOL-2026-01-4080-Q003", "sibling_text": "pilgrim nut method removal and attachment of propeller push up distance", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Pilgrim / SKF hydraulic nut — fitting, push-up, extraction and removal", "cross_family": true }, { "answer_id": "PROP-PIL-A-002", "score": 0.6195067167282104, "sibling_score": 0.6195067167282104, "answer_score": null, "sibling_qid": "KOL-2023-07-3623-Q006", "sibling_text": "you havekeyless propeller and drydock team has fitted the propeller in front of you how you will ensure that it is correctly fitted what all you check how to determine pushup", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Bedding on the taper and fit verification", "cross_family": true } ] }, { "qid": "MUM-2026-05-3236-Q002", "text": "Primary and secondary barrier?", "family": "Cargo Ops - Gas Carriers", "subtopic": "Cargo Tank Construction", "tid": "MUM-2026-05-3236", "tray": "new", "candidates": [ { "answer_id": "GC-TANK-003", "score": 0.5194035768508911, "sibling_score": 0.5194035768508911, "answer_score": 0.3404888868331909, "sibling_qid": "KOL-2024-08-0852-Q002", "sibling_text": "primary and secondary barrier of cargo tank", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "What is a Type B independent tank and the purpose of a partial secondary barrier?", "cross_family": false }, { "answer_id": "SOLAS12-BC-F-001", "score": 0.484511137008667, "sibling_score": 0.484511137008667, "answer_score": 0.3984314203262329, "sibling_qid": "KOL-2019-04-0279-Q004", "sibling_text": "what are the primary secondary bariers for a bulk carier", "sibling_family": "", "via": "sibling", "answer_title": "Barriers, foremost bulkheads, hatchways & double-side skin", "cross_family": false }, { "answer_id": "BATT-TYPE-005", "score": 0.43755269050598145, "sibling_score": 0.43755269050598145, "answer_score": null, "sibling_qid": "KOC-2023-03-1239-Q005", "sibling_text": "primary cell and secondary cell", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "What is a primary cell and what is a secondary cell?", "cross_family": true } ] }, { "qid": "MUM-2026-05-3237-Q005", "text": "Chock point for cold fuel filter,( I don't remember the exact words for the question, but I replied with the cloud point of the DO)?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Filter", "tid": "MUM-2026-05-3237", "tray": "review", "candidates": [ { "answer_id": "FPC-003", "score": 0.7054696083068848, "sibling_score": 0.7054696083068848, "answer_score": 0.6116326600313187, "sibling_qid": "KOL-2026-04-2057-Q004", "sibling_text": "cloud point and cold filter plugging point", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Cold filter plugging point (CFPP) and cold-flow properties", "cross_family": true }, { "answer_id": "FQCC-583-B-004", "score": 0.6874930262565613, "sibling_score": 0.6874930262565613, "answer_score": 0.6610322892665863, "sibling_qid": "MUM-2025-01-2266-Q003", "sibling_text": "cloud point", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Cloud point, pour point, CFPP and floc point — and the filter choking on the new fuel", "cross_family": false }, { "answer_id": "FQCC-583-A-008", "score": 0.6828811168670654, "sibling_score": 0.6828811168670654, "answer_score": 0.6278854012489319, "sibling_qid": "MUM-2022-10-2708-Q013", "sibling_text": "cold filter plugging point why happen", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Cold-flow properties — cloud point, pour point, CFPP", "cross_family": false } ] }, { "qid": "MUM-2026-05-3237-Q007", "text": "Sewage treatment plant survey only specific points for 1st and 2 chamber ( please don't limit for chamber was expectation other point like valve, blower)?", "family": "Steering Gear & Hydraulics", "subtopic": "Counter-Balance Valve", "tid": "MUM-2026-05-3237", "tray": "new", "candidates": [ { "answer_id": "STP-SEW-006", "score": 0.6318540573120117, "sibling_score": 0.6318540573120117, "answer_score": null, "sibling_qid": "CHE-2025-12-0099-Q013", "sibling_text": "sewage treatment plant routines as a second engg what checks you do", "sibling_family": "MARPOL - Annex IV (Sewage)", "via": "sibling", "answer_title": "Routine checks, maintenance and starting after overhaul", "cross_family": true }, { "answer_id": "STP-SEW-002", "score": 0.6079620122909546, "sibling_score": 0.6079620122909546, "answer_score": null, "sibling_qid": "CHE-2026-08-3891-Q008", "sibling_text": "sewage treatment plant parameters level", "sibling_family": "MARPOL - Annex IV (Sewage)", "via": "sibling", "answer_title": "Discharge criteria under Regulation 11", "cross_family": true }, { "answer_id": "STP-SEW-010", "score": 0.5896996259689331, "sibling_score": 0.5896996259689331, "answer_score": null, "sibling_qid": "KOL-2022-03-0607-Q002", "sibling_text": "sewage treatment plant diff types how they work how vaccum is loss", "sibling_family": "MARPOL - Annex IV (Sewage)", "via": "sibling", "answer_title": "The vacuum sewage system", "cross_family": true } ] }, { "qid": "MUM-2026-05-3237-Q010", "text": "Crankpin in-situ repair?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankpin Checks", "tid": "MUM-2026-05-3237", "tray": "review", "candidates": [ { "answer_id": "CRPIN-CHK-P01-004", "score": 0.779829740524292, "sibling_score": 0.779829740524292, "answer_score": 0.5601384818553924, "sibling_qid": "MUM-2025-09-2427-Q005", "sibling_text": "crankpin in situ repair cleared fn 4b", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Repairing an oval or worn crankpin — grinding, undersize bearings, renewal", "cross_family": false }, { "answer_id": "CRKPIN-P02-003", "score": 0.7295936942100525, "sibling_score": 0.7295936942100525, "answer_score": 0.5295245379209518, "sibling_qid": "KOL-2021-05-3405-Q001", "sibling_text": "crank pin damaged beyond repair action", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankpin or bearing beyond repair / no spare — casualty action", "cross_family": false }, { "answer_id": "CRKPIN-P02-001", "score": 0.6892250776290894, "sibling_score": 0.6892250776290894, "answer_score": null, "sibling_qid": "KOC-2024-02-1835-Q002", "sibling_text": "crank pin bearing overhaul with all the tackle positions", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankpin (bottom-end) bearing — removal, overhaul and survey inspection", "cross_family": false } ] }, { "qid": "MUM-2026-05-3237-Q011", "text": "Type of ship and type of engine?", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "MUM-2026-05-3237", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8339246511459351, "sibling_score": 0.8339246511459351, "answer_score": null, "sibling_qid": "MUM-2025-08-2357-Q001", "sibling_text": "type of ship type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.8214007019996643, "sibling_score": 0.8214007019996643, "answer_score": null, "sibling_qid": "MUM-2026-07-3668-Q004", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7602875232696533, "sibling_score": 0.7602875232696533, "answer_score": null, "sibling_qid": "KOL-2025-12-2031-Q002", "sibling_text": "type of ship and engine sailed engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "MUM-2026-05-3238-Q012", "text": "What is back less clearance?", "family": "2-Stroke - Components (Other)", "subtopic": "Running Clearances (Bumping/Jumping)", "tid": "MUM-2026-05-3238", "tray": "new", "candidates": [ { "answer_id": "PRING-CLR-A-002", "score": 0.5270595550537109, "sibling_score": 0.5270595550537109, "answer_score": null, "sibling_qid": "KOC-2023-10-1820-Q006", "sibling_text": "butt clearance", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston-ring clearances and calibration — butt, axial, radial, wear limits", "cross_family": false }, { "answer_id": "RUN-CLR-002", "score": 0.499094694852829, "sibling_score": 0.499094694852829, "answer_score": null, "sibling_qid": "MUM-2026-06-3470-Q004", "sibling_text": "bumping clearance", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Bumping clearance — what it is, why it matters, effects, and how it is adjusted", "cross_family": false }, { "answer_id": "BCL-592-005", "score": 0.4875609874725342, "sibling_score": 0.4875609874725342, "answer_score": null, "sibling_qid": "KOC-2022-07-0966-Q017", "sibling_text": "what provision given on bearing for less clearance overlayer", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What provision is made in the bearing itself to accommodate low clearance?", "cross_family": true } ] }, { "qid": "MUM-2026-05-3240-Q001", "text": "Zener barrier and its components?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Zener / Diode / Rectifier", "tid": "MUM-2026-05-3240", "tray": "review", "candidates": [ { "answer_id": "EPC-P02-03", "score": 0.7536413073539734, "sibling_score": 0.7536413073539734, "answer_score": 0.4543148696422577, "sibling_qid": "MUM-2026-07-3813-Q002", "sibling_text": "zener barrier full explanation every component", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Where is a zener diode used on board and why — voltage regulator, AVR, clipper — and explain one application in detail.", "cross_family": false }, { "answer_id": "EPC-P02-01", "score": 0.7534986734390259, "sibling_score": 0.7534986734390259, "answer_score": 0.4864840447902679, "sibling_qid": "MUM-2026-02-1957-Q003", "sibling_text": "zener barrier full explanation every component", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a zener diode? Draw its symbol, explain its working principle, and draw and explain its characteristic curve including the zener (breakdown) voltage.", "cross_family": false }, { "answer_id": "FSF-BF073-004", "score": 0.6522315740585327, "sibling_score": 0.6522315740585327, "answer_score": null, "sibling_qid": "CHE-2026-03-0359-Q001", "sibling_text": "zener diode zener barrier working in intrinsically safe", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a magnetic fail safe?", "cross_family": false } ] }, { "qid": "MUM-2026-05-3241-Q002", "text": "GMDSS explain?", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "MUM-2026-05-3241", "tray": "new", "candidates": [ { "answer_id": "UNL-330-001", "score": 0.6090695261955261, "sibling_score": 0.6090695261955261, "answer_score": null, "sibling_qid": "MUM-2026-05-3273-Q008", "sibling_text": "gmdss", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "What is the function of the main air compressor unloader?", "cross_family": false }, { "answer_id": "bdc-p05-03", "score": 0.540529727935791, "sibling_score": 0.540529727935791, "answer_score": null, "sibling_qid": "MUM-2026-05-3273-Q003", "sibling_text": "gmdss and equipment under this", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "CQ-BDC-025 GMDSS reserve battery — requirement, supply, voltage and equipment Medium", "cross_family": true }, { "answer_id": "BDC-P02-04", "score": 0.5345160961151123, "sibling_score": 0.5345160961151123, "answer_score": null, "sibling_qid": "CHE-2026-05-0589-Q007", "sibling_text": "why gmdss have dc supply", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "The ship's 24 V DC system — how it is produced, why DC, and what it supplies", "cross_family": true } ] }, { "qid": "MUM-2026-05-3241-Q003", "text": "Navtex explain?", "family": "Navigation & Bridge Equipment", "subtopic": "NAVTEX", "tid": "MUM-2026-05-3241", "tray": "new", "candidates": [ { "answer_id": "EXD-EXI-A-002", "score": 0.4814310073852539, "sibling_score": 0.4814310073852539, "answer_score": null, "sibling_qid": "KOC-2024-12-1447-Q008", "sibling_text": "exd explain", "sibling_family": "", "via": "sibling", "answer_title": "Ex d (flameproof / explosion-proof) — construction, shipboard applications and maintenance", "cross_family": false }, { "answer_id": "NDT-METH-P01-001", "score": 0.474529504776001, "sibling_score": 0.474529504776001, "answer_score": null, "sibling_qid": "CHE-2023-11-0391-Q003", "sibling_text": "explain ndt", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "NDT methods, NDT vs destructive testing, and onboard use", "cross_family": true }, { "answer_id": "SOLAS12-C-001", "score": 0.4650471806526184, "sibling_score": 0.4650471806526184, "answer_score": null, "sibling_qid": "KOC-2025-11-0708-Q004", "sibling_text": "explain", "sibling_family": "", "via": "sibling", "answer_title": "Explain SOLAS Chapter XII for bulk carriers — oral-exam overview", "cross_family": false } ] }, { "qid": "MUM-2026-05-3244-Q001", "text": "Double bottom and double hull? How it affect stability and cross question?", "family": "Ship Construction & Stability", "subtopic": "Double Bottom / Torsion Box", "tid": "MUM-2026-05-3244", "tray": "review", "candidates": [ { "answer_id": "DBTB-A-001", "score": 0.6856748461723328, "sibling_score": 0.6856748461723328, "answer_score": 0.48597487211227414, "sibling_qid": "CHE-2026-02-0110-Q004", "sibling_text": "difference b w double hull and double bottom", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Double-bottom construction and the structural members fitted", "cross_family": false }, { "answer_id": "STAB-D-001", "score": 0.6602165699005127, "sibling_score": 0.6602165699005127, "answer_score": null, "sibling_qid": "KOC-2023-11-0247-Q010", "sibling_text": "double hull ships stability increase or decrease wants to hear decrease", "sibling_family": "", "via": "sibling", "answer_title": "General Ship Stability - How I Open Any Stability Question", "cross_family": false }, { "answer_id": "COT-08", "score": 0.6468833684921265, "sibling_score": 0.6468833684921265, "answer_score": null, "sibling_qid": "MUM-2026-07-3787-Q002", "sibling_text": "double bottom and double hull difference", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Single-hull versus double-hull tanker requirements", "cross_family": true } ] }, { "qid": "MUM-2026-05-3244-Q002", "text": "Explain Free surface effect?", "family": "Ship Construction & Stability", "subtopic": "Free Surface Effect", "tid": "MUM-2026-05-3244", "tray": "review", "candidates": [ { "answer_id": "FSE-P01-001", "score": 0.7315369844436646, "sibling_score": 0.7315369844436646, "answer_score": 0.4938351809978485, "sibling_qid": "MUM-2026-05-3150-Q005", "sibling_text": "explain free surface effect", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "What is free surface effect? Explain the basic concept.", "cross_family": false }, { "answer_id": "FSE-P03-001", "score": 0.5087056070566177, "sibling_score": null, "answer_score": 0.5087056070566177, "sibling_qid": "", "sibling_text": "1 draw and explain free surface effect a free surface exists whenever a tank is slack not empty not pressed up on heeling liquid shifts to the low side the wedge transfer moves the liquid s centroid", "sibling_family": "", "via": "answer_title", "answer_title": "1. Draw and explain free surface effect", "cross_family": false }, { "answer_id": "FSE-P02-001", "score": 0.49526289105415344, "sibling_score": null, "answer_score": 0.49526289105415344, "sibling_qid": "", "sibling_text": "reducing and correcting free surface effect in practice fse is a virtual rise of g i e a virtual loss of gm m is fixed by the waterplane and does not move free surface correction rise of g i tank w in metres the liquid density is in it not just geometry", "sibling_family": "", "via": "answer_title", "answer_title": "Reducing and correcting free surface effect in practice", "cross_family": false } ] }, { "qid": "MUM-2026-05-3244-Q004", "text": "D2 BW requirements?", "family": "Other Conventions", "subtopic": "", "tid": "MUM-2026-05-3244", "tray": "new", "candidates": [ { "answer_id": "BWM-D1D2-P03-001", "score": 0.5951103568077087, "sibling_score": 0.5951103568077087, "answer_score": 0.3650468677282333, "sibling_qid": "KOC-2024-01-0281-Q007", "sibling_text": "bwts d2 standard", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Regulation D-2 — ballast water performance / discharge standardHigh", "cross_family": false }, { "answer_id": "BWMS-STD-B-002", "score": 0.5918216705322266, "sibling_score": 0.5918216705322266, "answer_score": null, "sibling_qid": "MUM-2026-03-0859-Q003", "sibling_text": "d2 standard for bwts", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "D-2 Ballast Water Performance Standard & how compliance is checked / sampled", "cross_family": false }, { "answer_id": "BWM-D1D2-P02-001", "score": 0.5846818685531616, "sibling_score": 0.5846818685531616, "answer_score": 0.3336495578289032, "sibling_qid": "CHE-2025-10-0063-Q011", "sibling_text": "d1 d2 standards of bw convention", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Regulation D-1 — ballast water exchange standard and the accepted methods", "cross_family": false } ] }, { "qid": "MUM-2026-05-3245-Q006", "text": "What is heat affected zone?", "family": "Workshop & Welding", "subtopic": "Pre-heat / Post-heat", "tid": "MUM-2026-05-3245", "tray": "new", "candidates": [ { "answer_id": "WBS-C-003", "score": 0.4978818893432617, "sibling_score": 0.4978818893432617, "answer_score": null, "sibling_qid": "MUM-2017-01-2126-Q004", "sibling_text": "requirements and regulation governing dedicated hot work area", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Shipboard hot work — the permit, the designated area, and work near fuel tanks", "cross_family": false }, { "answer_id": "FLD-601-002", "score": 0.4848181903362274, "sibling_score": 0.4848181903362274, "answer_score": null, "sibling_qid": "MUM-2026-05-3085-Q007", "sibling_text": "what is flammability zone", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What is the flammable range and the flammability zone? What happens inside a cargo tank below 1% LEL?", "cross_family": true }, { "answer_id": "FSH-DET-004", "score": 0.4560989737510681, "sibling_score": 0.4560989737510681, "answer_score": 0.34263744354248044, "sibling_qid": "KOC-2024-05-0337-Q010", "sibling_text": "heat detector regulation", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Heat detector locations onboard, and why heat detectors in ECR, workshop and machinery spaces", "cross_family": true } ] }, { "qid": "MUM-2026-05-3246-Q003", "text": "Fuel tank cleaning preparation and oil checking procedures and values of gases?", "family": "Fuel Oil System", "subtopic": "Settling Tank Survey / Tank Preparation", "tid": "MUM-2026-05-3246", "tray": "new", "candidates": [ { "answer_id": "ESE-P01-004", "score": 0.6242707371711731, "sibling_score": 0.6242707371711731, "answer_score": 0.48669055104255676, "sibling_qid": "KOC-2025-03-1508-Q009", "sibling_text": "some other questions in between can t remember internal we need to clean fuel oil settling tank what will be the full procedure including the securing of the residue and what all marks will do in records explain full enclosed space permit just brief full enclosed space procedures and gas checks mention writing in orb with code gas values what type of gas meter", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "Fuel-oil, settling, bunker or double-bottom tank entry and inspection", "cross_family": true }, { "answer_id": "TCM-374-003", "score": 0.6186574101448059, "sibling_score": 0.6186574101448059, "answer_score": 0.5245791792869567, "sibling_qid": "MUM-2023-06-0103-Q007", "sibling_text": "as 2e tank cleaning is to be carried out what all to be done wanted values of gases how much tlv types explain", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Preparing for tank cleaning and tank entry: gas checks, TLV and precautions", "cross_family": true }, { "answer_id": "TPC-FWA-001", "score": 0.569481611251831, "sibling_score": 0.569481611251831, "answer_score": null, "sibling_qid": "MUM-2025-09-0471-Q004", "sibling_text": "tpc formula fuel oil service tank preparation for survey", "sibling_family": "", "via": "sibling", "answer_title": "TPC — definition, formula, and why we divide by 100", "cross_family": false } ] }, { "qid": "MUM-2026-05-3246-Q004", "text": "ME engine camshaft sprocket number?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Cam Profile / Camshaft", "tid": "MUM-2026-05-3246", "tray": "new", "candidates": [ { "answer_id": "CHAIN-TENS-B-003", "score": 0.6383637189865112, "sibling_score": 0.6383637189865112, "answer_score": null, "sibling_qid": "MUM-2025-10-2859-Q003", "sibling_text": "how camshaft is driven in mcc 4 how many sprockets are there in chain drive", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Chain-drive arrangement — sprockets, idlers, links and chain case", "cross_family": true }, { "answer_id": "MEB-MEC-P03-002", "score": 0.601432740688324, "sibling_score": 0.601432740688324, "answer_score": null, "sibling_qid": "KOL-2026-02-1831-Q004", "sibling_text": "me vs mc main difference no camshaft 4 cam and camshaft job 5 in me who does the cam job", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "ME camless control architecture — ECS, CCU, EICU, MPC", "cross_family": true }, { "answer_id": "FCAM-LEAD-P04-001", "score": 0.6000836491584778, "sibling_score": 0.6000836491584778, "answer_score": 0.4457812368869781, "sibling_qid": "MUM-2025-08-1162-Q008", "sibling_text": "type of cams in m e for fuel and exhaust", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel cam lead, cam profile, negative cam and cam slip", "cross_family": false } ] }, { "qid": "MUM-2026-05-3246-Q005", "text": "Engine room pressure?", "family": "Boilers - Construction & Components", "subtopic": "Boiler Tubes", "tid": "MUM-2026-05-3246", "tray": "review", "candidates": [ { "answer_id": "ECON-EGB-002", "score": 0.6629868149757385, "sibling_score": 0.6629868149757385, "answer_score": null, "sibling_qid": "KOL-2024-12-1794-Q001", "sibling_text": "back pressure of boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Purpose, efficiency, heat recovery, turn ratio, steam quality & back-pressure", "cross_family": false }, { "answer_id": "BLR-STM-PR-B54-001", "score": 0.6562719345092773, "sibling_score": 0.6562719345092773, "answer_score": 0.49999135732650757, "sibling_qid": "MUM-2024-08-2237-Q003", "sibling_text": "boiler operating pressure at copt operations and at sea pressure", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler steam pressure — what you hold at sea, what you hold on COPT, and why the reduction is staged", "cross_family": true }, { "answer_id": "TPL-SENS-A-002", "score": 0.6436078548431396, "sibling_score": 0.6436078548431396, "answer_score": null, "sibling_qid": "KOL-2020-09-2391-Q003", "sibling_text": "how is pressure transmitters works and visible in engine room example boiler steam pressure", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Pressure transmitter / transducer / switch working and calibration", "cross_family": true } ] }, { "qid": "MUM-2026-05-3246-Q010", "text": "Type of engine?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-05-3246", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.8005295395851135, "sibling_score": 0.8005295395851135, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.7929258942604065, "sibling_score": 0.7929258942604065, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-001", "score": 0.4521873891353607, "sibling_score": null, "answer_score": 0.4521873891353607, "sibling_qid": "", "sibling_text": "1 turbocharger type main engine vs generator engine compressor is centrifugal in both cases only the turbine type differs large slow speed main engine axial flow turbine single stage constant pressure system", "sibling_family": "", "via": "answer_title", "answer_title": "1. Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "MUM-2026-05-3246-Q011", "text": "What is S in 6S60MC?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-05-3246", "tray": "new", "candidates": [ { "answer_id": "EGTP-P02-012", "score": 0.5999274849891663, "sibling_score": 0.5999274849891663, "answer_score": 0.31788600236177444, "sibling_qid": "KOC-2025-10-1948-Q003", "sibling_text": "what is s in 6s 60mcc", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Stroke, Bore Ratio and Super-Long Stroke", "cross_family": true }, { "answer_id": "ENG-NOM-004", "score": 0.5146809816360474, "sibling_score": 0.5146809816360474, "answer_score": 0.385542106628418, "sibling_qid": "KOL-2024-07-1948-Q002", "sibling_text": "6s46mc c", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Decode every letter and number: 6S60MC-C and 6S70ME-C", "cross_family": true }, { "answer_id": "RTFLEX-319-002", "score": 0.44543617963790894, "sibling_score": 0.44543617963790894, "answer_score": null, "sibling_qid": "KOC-2026-03-1110-Q003", "sibling_text": "6rtflex 60 c b what s c mentions", "sibling_family": "2-Stroke - 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Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "MUM-2026-05-3247-Q004", "text": "Priority coil for fiva valve(can not tell him this)?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "FIVA Valve", "tid": "MUM-2026-05-3247", "tray": "new", "candidates": [ { "answer_id": "FIVA-220-001", "score": 0.5845714211463928, "sibling_score": 0.5845714211463928, "answer_score": 0.3960078090429306, "sibling_qid": "MUM-2026-03-1306-Q018", "sibling_text": "what is fiva valve", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "FIVA valve — construction, function and basic operation", "cross_family": false }, { "answer_id": "FIVA-220-003", "score": 0.5675901174545288, "sibling_score": 0.5675901174545288, "answer_score": 0.38235772550106045, "sibling_qid": "MUM-2026-03-2588-Q002", "sibling_text": "how fiva valve working what will be it s position in fail safe", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "FIVA control signal, controller type, voice-coil drive and fail-safe behaviour", "cross_family": false }, { "answer_id": "BPV-315-002", "score": 0.3530588150024414, "sibling_score": null, "answer_score": 0.3530588150024414, "sibling_qid": "", "sibling_text": "why a back pressure valve after the veg room when a tev is already fitted", "sibling_family": "", "via": "answer_title", "answer_title": "Why a back pressure valve after the veg room when a TEV is already fitted", "cross_family": false } ] }, { "qid": "MUM-2026-05-3247-Q016", "text": "Sensible cooling?", "family": "Refrigeration & AC", "subtopic": "Sub-cooling / Superheat", "tid": "MUM-2026-05-3247", "tray": "new", "candidates": [ { "answer_id": "HT-A-003", "score": 0.5965880751609802, "sibling_score": 0.5965880751609802, "answer_score": null, "sibling_qid": "CHE-2026-05-0569-Q009", "sibling_text": "normalizing how will you cool in still air", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Normalising: process, still-air cooling, and how it differs from annealing", "cross_family": true }, { "answer_id": "REFR-FLT-001", "score": 0.5807632207870483, "sibling_score": 0.5807632207870483, "answer_score": null, "sibling_qid": "KOL-2019-10-3279-Q005", "sibling_text": "cooling not taking place in refer what problems not basic ones", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Provision/cold room temperature: will not pull down, runs too low, or will not hold", "cross_family": false }, { "answer_id": "REF-CYC-006", "score": 0.5794098377227783, "sibling_score": 0.5794098377227783, "answer_score": null, "sibling_qid": "MUM-2026-05-3245-Q002", "sibling_text": "sub cooling", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "6. Saturation temperature, subcooling, superheat and dryness fraction", "cross_family": false } ] }, { "qid": "MUM-2026-05-3249-Q002", "text": "What checks to do on tie rods after tightening?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Tie Rod / Tie Bolt", "tid": "MUM-2026-05-3249", "tray": "review", "candidates": [ { "answer_id": "TBR-TT-P02-002", "score": 0.8016934990882874, "sibling_score": 0.8016934990882874, "answer_score": 0.6184096217155456, "sibling_qid": "KOL-2025-07-3817-Q005", "sibling_text": "after tie rod tightening what all checks to be done in tie rod tightening procedure his emphasis is towards listening pinching screw after few minutes talk on pinching screw he asked two other important checks after tie rod tightening apart from after all tie rod tightened recheck for tightness elongation of tie rod check", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Checking tie rod tightness / slackness — stopped and running", "cross_family": false }, { "answer_id": "TBR-TT-P02-001", "score": 0.765466034412384, "sibling_score": 0.765466034412384, "answer_score": 0.5470878034830093, "sibling_qid": "MUM-2026-05-3259-Q015", "sibling_text": "after tightening the tie rod how will you ensure the tightening is proper", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Tie rod tightening / hydraulic tensioning procedure", "cross_family": false }, { "answer_id": "TR-TB-PA-001", "score": 0.707304835319519, "sibling_score": 0.707304835319519, "answer_score": null, "sibling_qid": "KOL-2023-10-4028-Q009", "sibling_text": "tie rod checking procedure", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Function of tie rods and the firing-load path", "cross_family": false } ] }, { "qid": "MUM-2026-05-3249-Q003", "text": "How to flush fuel injector?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Injector", "tid": "MUM-2026-05-3249", "tray": "review", "candidates": [ { "answer_id": "FLGLS-002", "score": 0.7243248820304871, "sibling_score": 0.7243248820304871, "answer_score": 0.5650315552949905, "sibling_qid": "KOL-2024-10-3720-Q002", "sibling_text": "how to purge high pressure pipe and fuel injector in main engine", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Purging a HP fuel line / injector and confirming all air is removed", "cross_family": false }, { "answer_id": "FINJ-004", "score": 0.7189141511917114, "sibling_score": 0.7189141511917114, "answer_score": 0.5442775249481201, "sibling_qid": "CHE-2026-03-0489-Q002", "sibling_text": "how to remove remove stuck fuel injector", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel injector stuck or seized — removal procedure and precautions", "cross_family": false }, { "answer_id": "FINJ-002", "score": 0.6897816061973572, "sibling_score": 0.6897816061973572, "answer_score": 0.5904392212629318, "sibling_qid": "CHE-2026-05-0548-Q007", "sibling_text": "fuel injector overhaul what all cares and checks", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel injector overhaul and testing — spray pattern and opening pressure", "cross_family": false } ] }, { "qid": "MUM-2026-05-3249-Q006", "text": "Biodegradation of lube oil as a 2nd engineer action?", "family": "MARPOL - General & Compliance", "subtopic": "Bunker Spill", "tid": "MUM-2026-05-3249", "tray": "new", "candidates": [ { "answer_id": "MD-SUMP-001", "score": 0.6053759455680847, "sibling_score": 0.6053759455680847, "answer_score": 0.44235838055610655, "sibling_qid": "KOL-2023-07-3619-Q003", "sibling_text": "lub oil microbiological degradation", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Microbial degradation of ME sump / system oil — cause, effect, identification, action, prevention", "cross_family": true }, { "answer_id": "LO-TEST-P02-003", "score": 0.591983437538147, "sibling_score": 0.591983437538147, "answer_score": null, "sibling_qid": "MUM-2023-02-2164-Q009", "sibling_text": "lub oil have microdegrad your action", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Abnormal LO condition: sump rise, colour, high temperature/pressure, lacquer, deterioration", "cross_family": true }, { "answer_id": "LO-TEST-P01-005", "score": 0.5730725526809692, "sibling_score": 0.5730725526809692, "answer_score": null, "sibling_qid": "MUM-2023-06-2734-Q004", "sibling_text": "lubeoil shows microrbial growth action", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Lube-oil properties, types and selection by duty", "cross_family": true } ] }, { "qid": "MUM-2026-05-3249-Q007", "text": "shrouding of inlet/outlet valve?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE Valve Seat", "tid": "MUM-2026-05-3249", "tray": "review", "candidates": [ { "answer_id": "AVS-436-007", "score": 0.7197450399398804, "sibling_score": 0.7197450399398804, "answer_score": 0.4766261577606201, "sibling_qid": "KOL-2025-07-3817-Q006", "sibling_text": "ae inlet valve shrouding", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "07. Inlet-valve shrouding — what it is and the repair answer", "cross_family": false }, { "answer_id": "EXHV-P03-004", "score": 0.6069680452346802, "sibling_score": 0.6069680452346802, "answer_score": 0.42266682386398313, "sibling_qid": "KOL-2021-04-1583-Q004", "sibling_text": "shrouding in exh valve", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Shrouding of the exhaust valve — what it is, its effect, and how to prevent it", "cross_family": true }, { "answer_id": "MAC-598-001", "score": 0.5208581686019897, "sibling_score": 0.5208581686019897, "answer_score": null, "sibling_qid": "KOC-2023-07-0925-Q007", "sibling_text": "mac valve arrangement for inlet and outlet asking for each valve fitted", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "The main air compressor valve — arrangement, parts, and why the construction is so complex", "cross_family": true } ] }, { "qid": "MUM-2026-05-3251-Q002", "text": "⁠ISM surveys AND ISPS ? full cross regarding MNC ,NC and observation?", "family": "ISPS", "subtopic": "ISPS Code / Security Level", "tid": "MUM-2026-05-3251", "tray": "new", "candidates": [ { "answer_id": "ISM-AUD-P03-003", "score": 0.5273218750953674, "sibling_score": 0.5273218750953674, "answer_score": null, "sibling_qid": "KOL-2024-12-0891-Q005", "sibling_text": "ism surveys who conducts nc and observation in isme survey what r the manuals under isme survey", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Non-conformity, major non-conformity and incident reporting under SMS", "cross_family": true }, { "answer_id": "ISMNC-004", "score": 0.5140107870101929, "sibling_score": 0.5140107870101929, "answer_score": null, "sibling_qid": "MUM-2026-06-3361-Q008", "sibling_text": "nc mnc observation", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Differentiate between an observation and a non-conformity under the ISM Code.", "cross_family": true }, { "answer_id": "ISM-AUDIT-P01-002", "score": 0.5119842290878296, "sibling_score": 0.5119842290878296, "answer_score": null, "sibling_qid": "KOC-2023-07-0200-Q009", "sibling_text": "what are surveys carried out in ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM/SMS audits and verifications — types, who conducts them, intervals and validity", "cross_family": true } ] }, { "qid": "MUM-2026-05-3252-Q001", "text": "Type A, B,C tanks?", "family": "Cargo Ops - Gas Carriers", "subtopic": "Independent Tank Type", "tid": "MUM-2026-05-3252", "tray": "review", "candidates": [ { "answer_id": "GC-TANK-002", "score": 0.6615973114967346, "sibling_score": 0.6615973114967346, "answer_score": null, "sibling_qid": "MUM-2026-04-0920-Q009", "sibling_text": "imo type c tank", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "What is an IMO Type C independent cargo tank?", "cross_family": false }, { "answer_id": "MARVS-TANK-005", "score": 0.6146107912063599, "sibling_score": 0.6146107912063599, "answer_score": null, "sibling_qid": "KOC-2025-07-0633-Q008", "sibling_text": "type of tank name", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Gas-carrier ship-type classification — 2G, 2PG and the IGC-code type criteria", "cross_family": false }, { "answer_id": "GC-TANK-001", "score": 0.5944881439208984, "sibling_score": 0.5944881439208984, "answer_score": 0.4271373599767685, "sibling_qid": "MUM-2026-06-3659-Q004", "sibling_text": "different types of tanks and explain each in detail", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Main cargo containment and independent tank types on LPG and LNG carriers", "cross_family": false } ] }, { "qid": "MUM-2026-05-3252-Q004", "text": "⁠ISM , DOC , SMC, when and how intrim SMC is issued?", "family": "ISM Code", "subtopic": "SMC / DOC", "tid": "MUM-2026-05-3252", "tray": "new", "candidates": [ { "answer_id": "ISM-SMCDOC-A-002", "score": 0.5789273381233215, "sibling_score": 0.5789273381233215, "answer_score": 0.3438829153776169, "sibling_qid": "CHE-2026-05-0562-Q010", "sibling_text": "interim doc smc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Interim DOC — when, why, how, and how long", "cross_family": false }, { "answer_id": "ISM-SMC-B-002", "score": 0.5736371278762817, "sibling_score": 0.5736371278762817, "answer_score": 0.36976591050624846, "sibling_qid": "KOC-2024-10-0426-Q006", "sibling_text": "ism code interim smc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Interim SMC — occasions, procedure and validity", "cross_family": false }, { "answer_id": "ISM-SMC-B-003", "score": 0.3654295325279236, "sibling_score": null, "answer_score": 0.3654295325279236, "sibling_qid": "", "sibling_text": "smc audit cycle initial intermediate renewal additional initial audit first full assessment full smc issued 5 years intermediate verification at least one if only one is carried out on a 5 year smc it is between the 2nd and 3rd anniversary verifies effective sms functioning and that changes still comply", "sibling_family": "", "via": "answer_title", "answer_title": "SMC audit cycle — initial, intermediate, renewal, additional", "cross_family": false } ] }, { "qid": "MUM-2026-05-3254-Q002", "text": "⁠x and s band radar?", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "MUM-2026-05-3254", "tray": "new", "candidates": [ { "answer_id": "EPC-P01-08", "score": 0.5738592743873596, "sibling_score": 0.5738592743873596, "answer_score": 0.4225596949458122, "sibling_qid": "MUM-2026-09-3886-Q006", "sibling_text": "x band and s band wavelength and frequency and type of wave", "sibling_family": "Navigation & Bridge Equipment", "via": "sibling", "answer_title": "Magnetron — what it is and how it works", "cross_family": true }, { "answer_id": "EPIRB-SART-001", "score": 0.43281200528144836, "sibling_score": 0.43281200528144836, "answer_score": 0.3643289849162102, "sibling_qid": "KOC-2024-03-0313-Q003", "sibling_text": "sart and epirb frequency", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What is the difference between EPIRB and SART? Give the function, construction, use and operation of each.", "cross_family": true }, { "answer_id": "DUS-P3-05", "score": 0.42261072993278503, "sibling_score": 0.42261072993278503, "answer_score": 0.34148843586444855, "sibling_qid": "MUM-2026-09-3886-Q005", "sibling_text": "how ships radar working", "sibling_family": "Navigation & Bridge Equipment", "via": "sibling", "answer_title": "Radar inspection while entering drydock, and the certificate covering DB inspection", "cross_family": true } ] }, { "qid": "MUM-2026-05-3254-Q003", "text": "⁠type of starter?", "family": "Electrical - Motors & Starters", "subtopic": "Induction Motor (General / Working)", "tid": "MUM-2026-05-3254", "tray": "review", "candidates": [ { "answer_id": "IMSP-002", "score": 0.7994794845581055, "sibling_score": 0.7994794845581055, "answer_score": 0.36177124083042145, "sibling_qid": "MUM-2025-11-1754-Q002", "sibling_text": "type starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What types of starter are used onboard? Name and explain the starting methods for a three-phase induction motor, including the soft starter.", "cross_family": false }, { "answer_id": "STR-DEC-A-001", "score": 0.7988070845603943, "sibling_score": 0.7988070845603943, "answer_score": 0.3644745171070099, "sibling_qid": "MUM-2026-05-3192-Q008", "sibling_text": "type starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "SOFTSTART-P02-003", "score": 0.4022496074438095, "sibling_score": null, "answer_score": 0.4022496074438095, "sibling_qid": "", "sibling_text": "types of starter and types of soft starter starter families dol full voltage star delta autotransformer korndorfer primary resistance reactor rotor resistance slip ring wound rotor motors only electronic soft starter vfd is a separate class running speed control not merely a softer start", "sibling_family": "", "via": "answer_title", "answer_title": "Types of starter, and types of soft starter", "cross_family": false } ] }, { "qid": "MUM-2026-05-3254-Q006", "text": "⁠How ship is protecting from lightening?", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2026-05-3254", "tray": "new", "candidates": [ { "answer_id": "ENR-P02B-001", "score": 0.6170540452003479, "sibling_score": 0.6170540452003479, "answer_score": null, "sibling_qid": "KOL-2017-02-2112-Q009", "sibling_text": "earthing system on ship", "sibling_family": "", "via": "sibling", "answer_title": "Ship’s earthing / distribution system — insulated LV neutral, earthed (Class-approved) HV neutral", "cross_family": false }, { "answer_id": "SHFT-ERTH-300-001", "score": 0.6037474870681763, "sibling_score": 0.6037474870681763, "answer_score": null, "sibling_qid": "KOL-2019-10-2338-Q005", "sibling_text": "shaft earthing principle arrangement on ship for that", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Purpose, principle and arrangement", "cross_family": true }, { "answer_id": "FOAM-P02-001", "score": 0.5933212637901306, "sibling_score": 0.5933212637901306, "answer_score": null, "sibling_qid": "MUM-2025-11-0556-Q009", "sibling_text": "fixed fire fighting system on deck of ur ship", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Draw and explain the fixed deck foam firefighting system used on a tanker.", "cross_family": true } ] }, { "qid": "MUM-2026-05-3255-Q001", "text": "Type of ship and engine?", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "MUM-2026-05-3255", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8332309722900391, "sibling_score": 0.8332309722900391, "answer_score": null, "sibling_qid": "MUM-2025-08-2357-Q001", "sibling_text": "type of ship type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.8270485401153564, "sibling_score": 0.8270485401153564, "answer_score": null, "sibling_qid": "MUM-2026-07-3668-Q004", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7615407705307007, "sibling_score": 0.7615407705307007, "answer_score": null, "sibling_qid": "KOL-2025-12-2031-Q002", "sibling_text": "type of ship and engine sailed engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "MUM-2026-05-3255-Q004", "text": "Poker gauge, where and how to use?", "family": "Gauges & Tools", "subtopic": "Poker Gauge", "tid": "MUM-2026-05-3255", "tray": "new", "candidates": [ { "answer_id": "PROP-PN-C-002", "score": 0.6098470687866211, "sibling_score": 0.6098470687866211, "answer_score": null, "sibling_qid": "KOC-2026-05-2124-Q005", "sibling_text": "what are you measuring with poker gauge", "sibling_family": "Gauges & Tools", "via": "sibling", "answer_title": "Propeller drop — measurement and consequences", "cross_family": false }, { "answer_id": "DUS-P1-02", "score": 0.5023728609085083, "sibling_score": 0.5023728609085083, "answer_score": null, "sibling_qid": "KOC-2026-09-2165-Q008", "sibling_text": "stern tube with poker gauge diagram", "sibling_family": "Gauges & Tools", "via": "sibling", "answer_title": "Plans, drawings and special tools kept ready for drydock — engine-department view", "cross_family": false }, { "answer_id": "CRANE-ROCK-LT-001", "score": 0.4304560422897339, "sibling_score": 0.4304560422897339, "answer_score": null, "sibling_qid": "KOL-2025-03-3757-Q002", "sibling_text": "rocking test where i put exactly dial gauge and how to take", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Crane rocking test — what it is, how it is taken, and why", "cross_family": true } ] }, { "qid": "MUM-2026-05-3256-Q002", "text": "construction of rocker arm?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE Tappet", "tid": "MUM-2026-05-3256", "tray": "new", "candidates": [ { "answer_id": "AE-CRP-004", "score": 0.5062030553817749, "sibling_score": 0.5062030553817749, "answer_score": null, "sibling_qid": "CHE-2026-08-3897-Q004", "sibling_text": "connecting rod checks in details", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE connecting-rod inspection — ovality, trueness, serrations, action if out of limit", "cross_family": false }, { "answer_id": "TR-TB-PA-001", "score": 0.4766896665096283, "sibling_score": 0.4766896665096283, "answer_score": null, "sibling_qid": "KOL-2024-04-3686-Q003", "sibling_text": "how firing forces transmitted tie rods arrangement how fitted how crankshaft rests on bedplate how bed plate girders fitted", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Function of tie rods and the firing-load path", "cross_family": true }, { "answer_id": "PPS-230-006", "score": 0.4737580418586731, "sibling_score": 0.4737580418586731, "answer_score": null, "sibling_qid": "KOC-2023-10-0229-Q002", "sibling_text": "construction of forward stringer", "sibling_family": "", "via": "sibling", "answer_title": "Fore-end / fore-peak structure: draw and describe", "cross_family": false } ] }, { "qid": "MUM-2026-05-3257-Q001", "text": "Type of Ship, Main Engine, Aux Engine?", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "MUM-2026-05-3257", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.7212753295898438, "sibling_score": 0.7212753295898438, "answer_score": null, "sibling_qid": "MUM-2026-09-3882-Q001", "sibling_text": "introduction types of ship main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.7210550904273987, "sibling_score": 0.7210550904273987, "answer_score": null, "sibling_qid": "MUM-2026-07-3668-Q004", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.6679978966712952, "sibling_score": 0.6679978966712952, "answer_score": 0.5883926510810852, "sibling_qid": "MUM-2026-05-3082-Q001", "sibling_text": "type of engine boiler aux engine generator", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false } ] }, { "qid": "MUM-2026-05-3257-Q003", "text": "⁠Reason for foaming in Refer Compressor?", "family": "Refrigeration & AC", "subtopic": "Reefer Compressor", "tid": "MUM-2026-05-3257", "tray": "new", "candidates": [ { "answer_id": "REEF-COMP-008", "score": 0.6374680399894714, "sibling_score": 0.6374680399894714, "answer_score": null, "sibling_qid": "MUM-2026-04-1313-Q006", "sibling_text": "reefer conpressor crankcase foaming", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Valves, clearances, oil carry-over, refrigerant-in-oil, frosting, tandem valves, cooling — fault checks", "cross_family": false }, { "answer_id": "REEF-COMP-001", "score": 0.5676073431968689, "sibling_score": 0.5676073431968689, "answer_score": null, "sibling_qid": "KOC-2024-07-1370-Q007", "sibling_text": "high pressure trip on refer compressor", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Reefer/AC compressor safeties and cut-outs — safety valve, HP and LP cut-outs", "cross_family": false }, { "answer_id": "FOAM-SYS-P05-005", "score": 0.5613530278205872, "sibling_score": 0.5613530278205872, "answer_score": null, "sibling_qid": "KOL-2024-12-0900-Q006", "sibling_text": "responsibility for expansion of foam and type of foam", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "5. Foam types carried onboard and how the correct foam is selected", "cross_family": true } ] }, { "qid": "MUM-2026-05-3257-Q013", "text": "What are the types of Heat Treatment Process? Decider Questions ⁠", "family": "NDT & Material Testing", "subtopic": "Heat Treatment", "tid": "MUM-2026-05-3257", "tray": "review", "candidates": [ { "answer_id": "HT-A-001", "score": 0.7779051661491394, "sibling_score": 0.7779051661491394, "answer_score": 0.44842994809150694, "sibling_qid": "CHE-2026-05-0548-Q011", "sibling_text": "deciding question po what is heat treatment and what are all methods", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Heat treatment: what it is, the main methods, and why it is done", "cross_family": false }, { "answer_id": "HT-A-002", "score": 0.72081059217453, "sibling_score": 0.72081059217453, "answer_score": 0.41987220048904417, "sibling_qid": "MUM-2025-08-2378-Q001", "sibling_text": "heat treatment name them what is annealing temp how cooling is done what result why", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Annealing: process, cooling control, and the reused copper washer", "cross_family": false }, { "answer_id": "HT-TCS-B-001", "score": 0.6897537708282471, "sibling_score": 0.6897537708282471, "answer_score": 0.40789179801940917, "sibling_qid": "MUM-2024-07-1082-Q004", "sibling_text": "what is heat treatment process and what is tempering", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Tempering — purpose, classes and where it is used on board", "cross_family": false } ] }, { "qid": "MUM-2026-05-3258-Q004", "text": "Main engine exhaust v/v spindle seat getting frequently hole and damaged. Causes and your action?", "family": "2-Stroke - Exhaust, Valve & Starting Air", "subtopic": "Exhaust Valve", "tid": "MUM-2026-05-3258", "tray": "review", "candidates": [ { "answer_id": "EXHV-P03-007", "score": 0.7119942307472229, "sibling_score": 0.7119942307472229, "answer_score": null, "sibling_qid": "KOL-2019-02-3210-Q004", "sibling_text": "material of exhaust vv seat composition arrangement to prevent wear wants to listen rotary vane", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "DuraSpindle and the anti-wear seat arrangement (valve rotation)", "cross_family": false }, { "answer_id": "EXHV-P03-001", "score": 0.70340496301651, "sibling_score": 0.70340496301651, "answer_score": 0.5201335698366165, "sibling_qid": "KOL-2020-12-1567-Q002", "sibling_text": "main engine exhaust valve getting damaged reasons", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve burning / burn-out — causes, and the ‘apart from Na and V’ answer", "cross_family": false }, { "answer_id": "EXV-P02-002", "score": 0.6952715516090393, "sibling_score": 0.6952715516090393, "answer_score": null, "sibling_qid": "KOL-2019-06-3243-Q003", "sibling_text": "after many times grinded used exhaust valve seat how will you decide to discard valve seat", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Seat/spindle grinding, templates, clearances (G1·G2·G3·F1) and seating-angle checks", "cross_family": false } ] }, { "qid": "MUM-2026-05-3258-Q007", "text": "AE piston ring worn out and no spares onboard. How to run engine?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE Conrod / Piston", "tid": "MUM-2026-05-3258", "tray": "review", "candidates": [ { "answer_id": "CYL-LINER-P03-009", "score": 0.6570842266082764, "sibling_score": 0.6570842266082764, "answer_score": null, "sibling_qid": "KOL-2016-10-3006-Q004", "sibling_text": "new liner and new piston ring proceed for running in", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Running-in after a new liner and new piston rings — procedure and why", "cross_family": true }, { "answer_id": "AE-CRP-002", "score": 0.6246153116226196, "sibling_score": 0.6246153116226196, "answer_score": null, "sibling_qid": "KOL-2019-02-3212-Q001", "sibling_text": "a e is running and one unit piston got stuck in liner your course of action as a 2 e", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Seized piston in an AE liner — actions and safe removal", "cross_family": false }, { "answer_id": "PRING-B-006", "score": 0.6226353645324707, "sibling_score": 0.6226353645324707, "answer_score": null, "sibling_qid": "KOL-2023-05-3612-Q005", "sibling_text": "piston ring break cannot change state precautions", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "General oral questions", "cross_family": true } ] }, { "qid": "MUM-2026-05-3259-Q001", "text": "Type of ship?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-05-3259", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8362272381782532, "sibling_score": 0.8362272381782532, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8015320301055908, "sibling_score": 0.8015320301055908, "answer_score": 0.5472018480300903, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8003027439117432, "sibling_score": 0.8003027439117432, "answer_score": 0.5214664876461029, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2026-05-3260-Q005", "text": "What is initial inspection , detailed inspection and clear ground in respect with PSC ?", "family": "Surveys - Statutory", "subtopic": "PSC / Flag / RO / CIC / MoU", "tid": "MUM-2026-05-3260", "tray": "new", "candidates": [ { "answer_id": "PSC-005", "score": 0.6001167893409729, "sibling_score": 0.6001167893409729, "answer_score": null, "sibling_qid": "MUM-2025-06-0327-Q006", "sibling_text": "psc clear grounds scope of psc inspection with respect to ism", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "5. As second engineer: preparing for PSC and ensuring compliance", "cross_family": false }, { "answer_id": "DCG-001", "score": 0.5912429690361023, "sibling_score": 0.5912429690361023, "answer_score": 0.44351498782634735, "sibling_qid": "KOL-2026-09-4308-Q004", "sibling_text": "clear ground in psc", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is meant by \"clear grounds\", under PSC and under SOLAS? Give examples and state the conditions.", "cross_family": false }, { "answer_id": "AUDIT-IE-002", "score": 0.5870259404182434, "sibling_score": 0.5870259404182434, "answer_score": null, "sibling_qid": "MUM-2026-05-3290-Q005", "sibling_text": "initial and detailed inspection", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "As Second Engineer, preparing for and handling an internal audit on board", "cross_family": false } ] }, { "qid": "MUM-2026-05-3263-Q003", "text": "SVDR and VDR?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "EPIRB / SART", "tid": "MUM-2026-05-3263", "tray": "new", "candidates": [ { "answer_id": "EPIRB-SART-001", "score": 0.4290543794631958, "sibling_score": 0.4290543794631958, "answer_score": null, "sibling_qid": "KOL-2017-09-0112-Q004", "sibling_text": "lrit vdr epirb sart mob marker", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What is the difference between EPIRB and SART? Give the function, construction, use and operation of each.", "cross_family": false }, { "answer_id": "CPP-TCV-03", "score": 0.38475045561790466, "sibling_score": 0.38475045561790466, "answer_score": null, "sibling_qid": "MUM-2026-05-3291-Q004", "sibling_text": "vec and veo", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Applying Miller timing to 4-stroke and 2-stroke engines", "cross_family": true }, { "answer_id": "VIT-MECH-A-003", "score": 0.3701073229312897, "sibling_score": 0.3701073229312897, "answer_score": null, "sibling_qid": "KOL-2017-01-1273-Q002", "sibling_text": "vit and super vit diff", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Conventional VIT vs Super-VIT — what actually differs", "cross_family": true } ] }, { "qid": "MUM-2026-05-3264-Q005", "text": "What is magnetic filter and where it is fitted?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "LO Filter", "tid": "MUM-2026-05-3264", "tray": "new", "candidates": [ { "answer_id": "LOF-359-002", "score": 0.6216715574264526, "sibling_score": 0.6216715574264526, "answer_score": 0.331176346540451, "sibling_qid": "MUM-2026-06-3370-Q004", "sibling_text": "purpose of magnets in main engine lube oil filter", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "FO Filter vs LO Filter — Which Is Finer, and Why?", "cross_family": false }, { "answer_id": "LOF-359-001", "score": 0.4442591965198517, "sibling_score": 0.4442591965198517, "answer_score": null, "sibling_qid": "MUM-2022-12-2720-Q005", "sibling_text": "what is beta filter", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Beta Ratio / Beta Efficiency", "cross_family": false }, { "answer_id": "LOF-359-004", "score": 0.4290984570980072, "sibling_score": 0.4290984570980072, "answer_score": null, "sibling_qid": "KOL-2022-02-3516-Q006", "sibling_text": "duplex filter", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Duplex / Hot Filter Changeover and Zero Differential Pressure", "cross_family": false } ] }, { "qid": "MUM-2026-05-3265-Q004", "text": "Variable injection timing ? why?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "VIT Mechanism", "tid": "MUM-2026-05-3265", "tray": "new", "candidates": [ { "answer_id": "VIT-MECH-A-002", "score": 0.5268458127975464, "sibling_score": 0.5268458127975464, "answer_score": 0.3243103429675102, "sibling_qid": "CHE-2025-08-0186-Q001", "sibling_text": "vit working how beginning of injection and end of injection happening", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How VIT works — varying the start of injection on the fuel pump", "cross_family": false }, { "answer_id": "FIVA-220-002", "score": 0.5209991931915283, "sibling_score": 0.5209991931915283, "answer_score": null, "sibling_qid": "KOL-2023-07-1747-Q010", "sibling_text": "how fiva controls timing of injection what factor", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "FIVA control of fuel injection — timing, quantity and actuation", "cross_family": false }, { "answer_id": "FINJ-006", "score": 0.5170415639877319, "sibling_score": 0.5170415639877319, "answer_score": null, "sibling_qid": "KOL-2018-05-1377-Q003", "sibling_text": "why initially 1 then 2 then now days 3 injector used", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Number of fuel injectors per unit and load-dependent operation", "cross_family": false } ] }, { "qid": "MUM-2026-05-3265-Q006", "text": "Glove valve?", "family": "General Marine Engineering", "subtopic": "Glove Valve", "tid": "MUM-2026-05-3265", "tray": "new", "candidates": [ { "answer_id": "SDNR-SDR-001", "score": 0.6332316994667053, "sibling_score": 0.6332316994667053, "answer_score": null, "sibling_qid": "KOL-2026-04-3949-Q004", "sibling_text": "glove valve disadvantages both sdnr type and sdr type", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "SDNR versus a plain globe valve -- telling them apart from outside, and the drawbacks of each", "cross_family": false }, { "answer_id": "GV-330-001", "score": 0.6054609417915344, "sibling_score": 0.6054609417915344, "answer_score": 0.4513773739337921, "sibling_qid": "KOC-2026-08-2117-Q004", "sibling_text": "globe valve or gate valve draw anyone", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Draw and explain the gate valve — construction, main parts, operation & onboard use", "cross_family": false }, { "answer_id": "SDNR-SDR-004", "score": 0.5874895453453064, "sibling_score": 0.5874895453453064, "answer_score": 0.4188977301120758, "sibling_qid": "KOL-2024-09-3711-Q003", "sibling_text": "spring loaded non return globe valve where use in engine room", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Spring-loaded spindleless non-return globe valve -- working principle and engine-room use", "cross_family": false } ] }, { "qid": "MUM-2026-05-3265-Q008", "text": "Bed plate box type, bed plate crack?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Bedplate / A-Frame", "tid": "MUM-2026-05-3265", "tray": "new", "candidates": [ { "answer_id": "BED-CHOCK-001", "score": 0.6428938508033752, "sibling_score": 0.6428938508033752, "answer_score": null, "sibling_qid": "KOL-2026-05-4197-Q004", "sibling_text": "where to check bedplate crack on ship", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "How is the main-engine bedplate fixed to the ship's structure?", "cross_family": false }, { "answer_id": "FWFB-P02-007", "score": 0.6143738627433777, "sibling_score": 0.6143738627433777, "answer_score": null, "sibling_qid": "MUM-2026-03-2952-Q007", "sibling_text": "what type of bedplate", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Transverse and longitudinal girders: arrangement and purpose", "cross_family": false }, { "answer_id": "FWFB-P02-008", "score": 0.5342646241188049, "sibling_score": 0.5342646241188049, "answer_score": null, "sibling_qid": "MUM-2026-05-3081-Q001", "sibling_text": "a frame crack reason", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Forces and stresses on transverse girders; action for cracks", "cross_family": false } ] }, { "qid": "MUM-2026-05-3266-Q005", "text": "How to zero set deflection gauge and how will you ensure that gauge doesn't fall while we take reading?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Main Bearing / Bedplate / Bridge Gauge", "tid": "MUM-2026-05-3266", "tray": "new", "candidates": [ { "answer_id": "CSD-BF036-002", "score": 0.5962020754814148, "sibling_score": 0.5962020754814148, "answer_score": null, "sibling_qid": "MUM-2023-06-2734-Q006", "sibling_text": "how to give instructions to 3e to take main engin crankshaft deflection don t miss about dial gauge calibration point", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "How do you take a crankshaft deflection — pre-checks, and instructing the 3/E?", "cross_family": false }, { "answer_id": "MICR-002", "score": 0.5829681158065796, "sibling_score": 0.5829681158065796, "answer_score": 0.49216580390930176, "sibling_qid": "KOL-2018-05-1373-Q012", "sibling_text": "screw gauge zero calibration", "sibling_family": "Gauges & Tools", "via": "sibling", "answer_title": "Zero setting, calibration, error check and trueness", "cross_family": true }, { "answer_id": "CRK-DEFL-005", "score": 0.5743728280067444, "sibling_score": 0.5743728280067444, "answer_score": null, "sibling_qid": "KOC-2022-08-1790-Q002", "sibling_text": "crankshaft deflection procedure he told no need of safeties go direct to measurement how to plot graph what precaution while measuring last 3 units explained as per manual", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Plotting and interpreting the deflection curve", "cross_family": false } ] }, { "qid": "MUM-2026-05-3267-Q002", "text": "CPR ring and purpose of S type?", "family": "2-Stroke - Components (Other)", "subtopic": "Piston Rings", "tid": "MUM-2026-05-3267", "tray": "new", "candidates": [ { "answer_id": "PRING-CLR-A-001", "score": 0.6123678088188171, "sibling_score": 0.6123678088188171, "answer_score": 0.32407087981700894, "sibling_qid": "MUM-2025-10-0984-Q002", "sibling_text": "cpr ring and purpose of s type", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston-ring types — CPR, POP, the PC ring, and the pinned gap", "cross_family": false }, { "answer_id": "SB-PRG-B-005", "score": 0.32171566486358644, "sibling_score": null, "answer_score": 0.32171566486358644, "sibling_qid": "", "sibling_text": "ring set segment identification checks and clearances", "sibling_family": "", "via": "answer_title", "answer_title": "Ring set, segment identification, checks and clearances", "cross_family": false }, { "answer_id": "PRING-B-006", "score": 0.29984956085681913, "sibling_score": null, "answer_score": 0.29984956085681913, "sibling_qid": "", "sibling_text": "general oral questions oblique angular or stepped ring gap joint seals across the gap as it wears avoiding the straight blow by path of a plain butt cut the man b w cpr ring uses a gas tight double s lock finger lock joint engine top ring taller thicker than a compressor ring it takes far higher combustion pressure and temperature so it needs strength bearing area and heat transfer capacity the co", "sibling_family": "", "via": "answer_title", "answer_title": "General oral questions", "cross_family": false } ] }, { "qid": "MUM-2026-05-3267-Q004", "text": "How FWG back pressure adjust?", "family": "Fresh Water & Domestic Systems", "subtopic": "", "tid": "MUM-2026-05-3267", "tray": "new", "candidates": [ { "answer_id": "FWG-RO-003", "score": 0.5604287385940552, "sibling_score": 0.5604287385940552, "answer_score": null, "sibling_qid": "MUM-2025-12-2879-Q004", "sibling_text": "fwg production reduce from rated valve checks and action", "sibling_family": "Fresh Water & Domestic Systems", "via": "sibling", "answer_title": "The FWG is not producing enough water or its efficiency has dropped. Reasons, checks and action?", "cross_family": false }, { "answer_id": "BPV-315-005", "score": 0.5075182318687439, "sibling_score": 0.5075182318687439, "answer_score": 0.40219220519065857, "sibling_qid": "KOL-2026-02-1830-Q004", "sibling_text": "ref equalizer line back pressure valve", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Equalising line and the back pressure valve", "cross_family": true }, { "answer_id": "BPV-315-001", "score": 0.5021743178367615, "sibling_score": 0.5021743178367615, "answer_score": 0.39908143877983093, "sibling_qid": "KOC-2026-03-1124-Q007", "sibling_text": "back pressure valve functions", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Back pressure valve — purpose, location and operation", "cross_family": true } ] }, { "qid": "MUM-2026-05-3267-Q006", "text": "Improved lift safety valve?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2026-05-3267", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.7797300219535828, "sibling_score": 0.7797300219535828, "answer_score": null, "sibling_qid": "MUM-2026-06-3405-Q017", "sibling_text": "improved high lift safety valve details", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACSS-002", "score": 0.48904368877410886, "sibling_score": null, "answer_score": 0.48904368877410886, "sibling_qid": "", "sibling_text": "relief safety valves settings testing lifting reasons bursting disc set just above stage working pressure the class standard accumulation limit is about 10 though the exact set point is a maker sms value non isolable from its stage test to the maker s method easing gear or test rig for lifting pressure log and reset", "sibling_family": "", "via": "answer_title", "answer_title": "Relief / safety valves: settings, testing, lifting reasons; bursting disc", "cross_family": false }, { "answer_id": "ACRV-004", "score": 0.48115814924240113, "sibling_score": null, "answer_score": 0.48115814924240113, "sibling_qid": "", "sibling_text": "final stage relief valve setting adjustment and safety cut out pressure always set by an authorised competent person to the maker s figure on a calibrated master gauge with the valve on a rig or the stage isolated and depressurised never adjust to mask a fault adjusting screw in raises the lift pressure more spring load out lowers it slacken the lock nut first relock and cap seal after", "sibling_family": "", "via": "answer_title", "answer_title": "Final-stage relief-valve setting/adjustment and safety cut-out pressure", "cross_family": false } ] }, { "qid": "MUM-2026-05-3268-Q001", "text": "Which type of ship n Engine?", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "MUM-2026-05-3268", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.7929907441139221, "sibling_score": 0.7929907441139221, "answer_score": null, "sibling_qid": "MUM-2025-08-2357-Q001", "sibling_text": "type of ship type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.7806796431541443, "sibling_score": 0.7806796431541443, "answer_score": null, "sibling_qid": "MUM-2026-07-3668-Q004", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "AC-VE-001", "score": 0.7474650740623474, "sibling_score": 0.7474650740623474, "answer_score": null, "sibling_qid": "MUM-2026-01-2904-Q001", "sibling_text": "what type of ship engine power and nomenclature", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Volumetric efficiency: define it, and if it drops how do you improve it (with bumping clearance)?", "cross_family": false } ] }, { "qid": "MUM-2026-05-3268-Q003", "text": "⁠Voice coil drive in ME Engine?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "ELFI", "tid": "MUM-2026-05-3268", "tray": "new", "candidates": [ { "answer_id": "FIVA-220-003", "score": 0.5603440403938293, "sibling_score": 0.5603440403938293, "answer_score": null, "sibling_qid": "CHE-2025-08-0201-Q004", "sibling_text": "fiva valve which type of control it is i told voice coil drive but he asked me p pi or pid", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "FIVA control signal, controller type, voice-coil drive and fail-safe behaviour", "cross_family": false }, { "answer_id": "VTAP-001", "score": 0.5293172597885132, "sibling_score": 0.5293172597885132, "answer_score": null, "sibling_qid": "CHE-2025-12-0234-Q002", "sibling_text": "virtual tappet in me engine", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "What is the virtual tappet on a two-stroke exhaust valve, where is it, and what is it for?", "cross_family": false }, { "answer_id": "OC-UV-TRIP-001", "score": 0.5180834531784058, "sibling_score": 0.5180834531784058, "answer_score": null, "sibling_qid": "KOL-2017-01-2094-Q002", "sibling_text": "no volt coil", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Under-voltage trip / no-volt coil — purpose, working, onboard test and calibration", "cross_family": true } ] }, { "qid": "MUM-2026-05-3268-Q006", "text": "Dia of holding down bolts as per SOLAS ?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE Resilient Chock", "tid": "MUM-2026-05-3268", "tray": "new", "candidates": [ { "answer_id": "LATHE-TD-003", "score": 0.5621481537818909, "sibling_score": 0.5621481537818909, "answer_score": null, "sibling_qid": "KOC-2022-08-0973-Q007", "sibling_text": "bolt dimensions m13 1 75", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Thread cutting — lathe, taps & dies, TPI and tapping-drill size", "cross_family": true }, { "answer_id": "TR-TB-PA-006", "score": 0.5528450608253479, "sibling_score": 0.5528450608253479, "answer_score": null, "sibling_qid": "MUM-2026-09-3906-Q003", "sibling_text": "hold down bolt material specification", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Material, condition, fretting, vibration and elongation", "cross_family": true }, { "answer_id": "FB-COUP-001", "score": 0.5439267158508301, "sibling_score": 0.5439267158508301, "answer_score": 0.42024095803499223, "sibling_qid": "KOC-2026-09-2175-Q005", "sibling_text": "fitted bolts where", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What fitted bolts are, what they do, and where they sit onboard", "cross_family": true } ] }, { "qid": "MUM-2026-05-3268-Q010", "text": "There is a leak after main steam stop valve, how will you proceed?", "family": "Boilers - Construction & Components", "subtopic": "Composite Boiler", "tid": "MUM-2026-05-3268", "tray": "review", "candidates": [ { "answer_id": "BLR-TUBE-P02-002", "score": 0.6542748808860779, "sibling_score": 0.6542748808860779, "answer_score": 0.5196486651897431, "sibling_qid": "MUM-2024-07-1085-Q004", "sibling_text": "boiler tube leak tell him about plugging then asked if on drydock ho to get to know the thickness of tube", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Plugging a leaking boiler tube (temporary arrest)", "cross_family": false }, { "answer_id": "BLR-TUBE-P02-001", "score": 0.6526250243186951, "sibling_score": 0.6526250243186951, "answer_score": null, "sibling_qid": "KOL-2018-03-1356-Q008", "sibling_text": "exhaust valve boiler tube leaking action", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Identifying a boiler tube leak and finding the leaking tube", "cross_family": false }, { "answer_id": "BLR-TUBE-P02-003", "score": 0.6470484137535095, "sibling_score": 0.6470484137535095, "answer_score": null, "sibling_qid": "KOL-2021-09-3456-Q003", "sibling_text": "boiler tube leaking explain about the repair procedure", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Repairing, removing and renewing a boiler tube; Class formalities", "cross_family": false } ] }, { "qid": "MUM-2026-05-3268-Q012", "text": "Status of oral and written?", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2026-05-3268", "tray": "review", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.7749907374382019, "sibling_score": 0.7749907374382019, "answer_score": null, "sibling_qid": "MUM-2026-05-3187-Q001", "sibling_text": "status of other orals and written", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.540111780166626, "sibling_score": 0.540111780166626, "answer_score": null, "sibling_qid": "MUM-2026-05-2995-Q001", "sibling_text": "written and oral status type of ship and company", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": true }, { "answer_id": "AE-CRP-005", "score": 0.42787590622901917, "sibling_score": 0.42787590622901917, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q001", "sibling_text": "type of vessel engine make written and oral status", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": true } ] }, { "qid": "MUM-2026-05-3269-Q008", "text": "Clamp meter types and working and current transformer?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Galvanometer / Multimeter / Clamp Meter", "tid": "MUM-2026-05-3269", "tray": "review", "candidates": [ { "answer_id": "GMCM-583-A-009", "score": 0.8362549543380737, "sibling_score": 0.8362549543380737, "answer_score": 0.6087518066167831, "sibling_qid": "MUM-2026-03-2036-Q007", "sibling_text": "clampmeter types and working and current transformer 8 24 03 20 42 mumbai", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "09. The clamp (tong) meter — working principle, types, and why only a single conductor is clamped", "cross_family": false }, { "answer_id": "PT-CT-001", "score": 0.7140371203422546, "sibling_score": 0.7140371203422546, "answer_score": 0.5313069462776184, "sibling_qid": "MUM-2025-11-1779-Q005", "sibling_text": "current transformer function and working", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Current transformer — what it is, working and diagram", "cross_family": false }, { "answer_id": "PT-CT-003", "score": 0.7109924554824829, "sibling_score": 0.7109924554824829, "answer_score": 0.5005198836326599, "sibling_qid": "KOL-2018-01-2166-Q001", "sibling_text": "current transformer use", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "CT and PT instrument transformers — purpose, uses and differences", "cross_family": false } ] }, { "qid": "MUM-2026-05-3271-Q006", "text": "Name of radio active source?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Active / Reactive / Apparent Power", "tid": "MUM-2026-05-3271", "tray": "new", "candidates": [ { "answer_id": "FSH-DET-002", "score": 0.5704506635665894, "sibling_score": 0.5704506635665894, "answer_score": null, "sibling_qid": "MUM-2026-05-3192-Q003", "sibling_text": "material of radiation material", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Working of smoke detectors — ionization type and cargo-hold smoke detection", "cross_family": true }, { "answer_id": "EFD-P02-002", "score": 0.47223004698753357, "sibling_score": 0.47223004698753357, "answer_score": null, "sibling_qid": "MUM-2026-05-3348-Q008", "sibling_text": "earth lamp", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Earth-lamp / earth-fault indicator circuit: working and interpretation", "cross_family": false }, { "answer_id": "ISM-ELEM-003", "score": 0.47191762924194336, "sibling_score": 0.47191762924194336, "answer_score": null, "sibling_qid": "MUM-2023-08-2740-Q003", "sibling_text": "ism element number and name", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": true } ] }, { "qid": "MUM-2026-05-3272-Q001", "text": "Ship sailed?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-05-3272", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8447009921073914, "sibling_score": 0.8447009921073914, "answer_score": null, "sibling_qid": "MUM-2026-04-1319-Q001", "sibling_text": "ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.6838722825050354, "sibling_score": 0.6838722825050354, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.6813286542892456, "sibling_score": 0.6813286542892456, "answer_score": null, "sibling_qid": "MUM-2026-02-1280-Q001", "sibling_text": "type of ship done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false } ] }, { "qid": "MUM-2026-05-3272-Q004", "text": "Why 60hz is used onboard why not 50 Hz?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "PT / CT", "tid": "MUM-2026-05-3272", "tray": "new", "candidates": [ { "answer_id": "ALT-GEN-P04-007", "score": 0.6086405515670776, "sibling_score": 0.6086405515670776, "answer_score": 0.38517474234104154, "sibling_qid": "KOC-2026-03-1729-Q005", "sibling_text": "why 60hz internal no questions", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Frequency, poles, speed and 50/60 Hz relation", "cross_family": true }, { "answer_id": "RMS-VAL-006", "score": 0.487567275762558, "sibling_score": 0.487567275762558, "answer_score": null, "sibling_qid": "KOC-2024-06-1364-Q003", "sibling_text": "why 440 220 110 used instead of 400 200 100 what is form factor and value 1 11", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Why standard voltages are 220, 440, 1100 — not 200, 400, 1000", "cross_family": false }, { "answer_id": "SHORE-CONN-P04-001", "score": 0.48367926478385925, "sibling_score": 0.48367926478385925, "answer_score": 0.3840435683727264, "sibling_qid": "KOC-2025-02-1500-Q008", "sibling_text": "your shore is supplying 50 hz and your ship has 60hz you can t reduce voltage how will you run your machinery", "sibling_family": "", "via": "sibling", "answer_title": "Accepting shore supply at a different frequency or voltage (incl. dry dock)", "cross_family": false } ] }, { "qid": "MUM-2026-05-3272-Q011", "text": "Explain electromagnetic break in case of power failure?", "family": "Electrical - Protection & Relays", "subtopic": "Magnetic Brake", "tid": "MUM-2026-05-3272", "tray": "review", "candidates": [ { "answer_id": "CRANE-EMBRK-004", "score": 0.6559351086616516, "sibling_score": 0.6559351086616516, "answer_score": 0.4736486881971359, "sibling_qid": "KOL-2022-04-2552-Q006", "sibling_text": "er crane power failure what happens electromagnetic brake location", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Power-failure behaviour of the brake, and its place in the crane safety chain", "cross_family": false }, { "answer_id": "CRANE-EMBRK-002", "score": 0.6380025744438171, "sibling_score": 0.6380025744438171, "answer_score": null, "sibling_qid": "KOL-2021-03-2436-Q003", "sibling_text": "working of windlass electromagnetic break where the break is fitted break material", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Arrangement, parts / materials and maintenance of the crane & windlass brake", "cross_family": false }, { "answer_id": "CRANE-EMBRK-001", "score": 0.6007130742073059, "sibling_score": 0.6007130742073059, "answer_score": null, "sibling_qid": "MUM-2025-06-1540-Q008", "sibling_text": "electromagnetic brake working where used", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Working and purpose of the electromagnetic brake, and where it is used onboard", "cross_family": false } ] }, { "qid": "MUM-2026-05-3273-Q004", "text": "Bnwas?", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "MUM-2026-05-3273", "tray": "new", "candidates": [ { "answer_id": "LO-TEST-P01-004", "score": 0.5249932408332825, "sibling_score": 0.5249932408332825, "answer_score": null, "sibling_qid": "KOL-2018-09-1418-Q003", "sibling_text": "what is bn tbn tan sn", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "TBN, BN, TAN, SAN and the SAE grade", "cross_family": true }, { "answer_id": "BWMS-C-001", "score": 0.5215266346931458, "sibling_score": 0.5215266346931458, "answer_score": null, "sibling_qid": "MUM-2025-10-0517-Q002", "sibling_text": "bwts", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Ballast water management vs treatment — and why a BWTS", "cross_family": true }, { "answer_id": "BDN-001-001", "score": 0.5005459189414978, "sibling_score": 0.5005459189414978, "answer_score": null, "sibling_qid": "MUM-2023-08-0118-Q006", "sibling_text": "content of bdn", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "BDN: what it is and what it must contain", "cross_family": true } ] }, { "qid": "MUM-2026-05-3273-Q008", "text": "GMDSS ?", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "MUM-2026-05-3273", "tray": "review", "candidates": [ { "answer_id": "UNL-330-001", "score": 0.7301872372627258, "sibling_score": 0.7301872372627258, "answer_score": null, "sibling_qid": "MUM-2026-05-3273-Q008", "sibling_text": "gmdss", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "What is the function of the main air compressor unloader?", "cross_family": false }, { "answer_id": "bdc-p05-03", "score": 0.6262571215629578, "sibling_score": 0.6262571215629578, "answer_score": 0.39977553486824036, "sibling_qid": "CHE-2026-04-0379-Q005", "sibling_text": "gmdss source of supply", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "CQ-BDC-025 GMDSS reserve battery — requirement, supply, voltage and equipment Medium", "cross_family": true }, { "answer_id": "bdc-p05-04", "score": 0.5649181604385376, "sibling_score": 0.5649181604385376, "answer_score": 0.3977350190281868, "sibling_qid": "MUM-2026-05-3288-Q005", "sibling_text": "solas requirement for gmdss and emergency battery", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "CQ-BDC-027 GMDSS, emergency and engine-starting batteries — three systems, three rules Medium", "cross_family": true } ] }, { "qid": "MUM-2026-05-3274-Q001", "text": "Introduction?", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-05-3274", "tray": "new", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.4986570477485657, "sibling_score": 0.4986570477485657, "answer_score": null, "sibling_qid": "MUM-2026-05-3248-Q001", "sibling_text": "introduction sea time company pre sea ship type engine type me", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "AIR-DIST-002", "score": 0.48346710205078125, "sibling_score": 0.48346710205078125, "answer_score": null, "sibling_qid": "MUM-2022-12-1037-Q003", "sibling_text": "starting system explain", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Control-air route and starting sequence through the air distributor", "cross_family": true }, { "answer_id": "SOLAS12-C-001", "score": 0.4745365083217621, "sibling_score": 0.4745365083217621, "answer_score": null, "sibling_qid": "KOC-2025-11-0708-Q004", "sibling_text": "explain", "sibling_family": "", "via": "sibling", "answer_title": "Explain SOLAS Chapter XII for bulk carriers — oral-exam overview", "cross_family": false } ] }, { "qid": "MUM-2026-05-3274-Q005", "text": "How much lines connected to fish room TEV?", "family": "Refrigeration & AC", "subtopic": "TEV / TXV", "tid": "MUM-2026-05-3274", "tray": "new", "candidates": [ { "answer_id": "TEV-TXV-007", "score": 0.5188596844673157, "sibling_score": 0.5188596844673157, "answer_score": 0.29965936839580537, "sibling_qid": "MUM-2025-12-2884-Q011", "sibling_text": "fish room tev is damaged actions", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Faulty TEV in a meat/fish room with no spare — diagnosis and management", "cross_family": false }, { "answer_id": "TEV-TXV-002", "score": 0.4970131516456604, "sibling_score": 0.4970131516456604, "answer_score": null, "sibling_qid": "MUM-2026-02-2926-Q002", "sibling_text": "tev connection equalising line purpose", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "TEV / TXV — purpose, construction, location and working", "cross_family": false }, { "answer_id": "EQ-LINE-001", "score": 0.4793110489845276, "sibling_score": 0.4793110489845276, "answer_score": null, "sibling_qid": "NOI-2026-09-0009-Q005", "sibling_text": "tev working equalising line", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Purpose and function of the equalising line / equalising valve in refrigeration service", "cross_family": false } ] }, { "qid": "MUM-2026-05-3275-Q004", "text": "Rudder bolts have become loose what action will you take?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "MUM-2026-05-3275", "tray": "new", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.6314435005187988, "sibling_score": 0.6314435005187988, "answer_score": null, "sibling_qid": "MUM-2026-05-3161-Q003", "sibling_text": "how to repair breached rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "TRS-002", "score": 0.6236075758934021, "sibling_score": 0.6236075758934021, "answer_score": null, "sibling_qid": "KOC-2026-02-1103-Q008", "sibling_text": "how rudder stock and carrier bearing is attached told 2 half fitted bolts x does bearing turn with rudder i told yes then he told that there are 2 types one turn with rudder other dont turn with rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "TBR-TT-P02-002", "score": 0.6173484325408936, "sibling_score": 0.6173484325408936, "answer_score": null, "sibling_qid": "KOL-2021-10-3470-Q006", "sibling_text": "your ship passed from a bad weather and you have to check the tightness of the tie rod bolts how you check by rai sir", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Checking tie rod tightness / slackness — stopped and running", "cross_family": true } ] }, { "qid": "MUM-2026-05-3276-Q001", "text": "Pre Sea institute?", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-05-3276", "tray": "new", "candidates": [ { "answer_id": "STCW-MAN-006", "score": 0.5940645933151245, "sibling_score": 0.5940645933151245, "answer_score": null, "sibling_qid": "NOI-2026-09-0008-Q001", "sibling_text": "training institue sea time after class 4 coc", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "What are the levels and categories of seafarer under STCW, and what are the duties of the Second Engineer at management level?", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.5018067955970764, "sibling_score": 0.5018067955970764, "answer_score": null, "sibling_qid": "MUM-2026-05-3248-Q001", "sibling_text": "introduction sea time company pre sea ship type engine type me", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.4866446852684021, "sibling_score": 0.4866446852684021, "answer_score": null, "sibling_qid": "MUM-2026-03-0866-Q001", "sibling_text": "coc attempt internal sirish sir external vishwanathan iyer sir started with what function you are applying how many ships type of ships you did after class 4 pre sea from where how many written cleared what about other functions", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false } ] }, { "qid": "MUM-2026-05-3276-Q002", "text": "ME and AE specifications? How both are connected with hull?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE vs ME Differences", "tid": "MUM-2026-05-3276", "tray": "new", "candidates": [ { "answer_id": "AEME-DIFF-001", "score": 0.5141167044639587, "sibling_score": 0.5141167044639587, "answer_score": null, "sibling_qid": "MUM-2024-09-2770-Q002", "sibling_text": "me ae type and specs", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "ENG-NOM-001", "score": 0.4357437193393707, "sibling_score": 0.4357437193393707, "answer_score": 0.3558749958872795, "sibling_qid": "MUM-2026-07-3841-Q002", "sibling_text": "me and ae nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Nomenclature of ME and AE (asked together)", "cross_family": true }, { "answer_id": "EMD-MEAE-001", "score": 0.4357377588748932, "sibling_score": 0.4357377588748932, "answer_score": 0.3324592337012291, "sibling_qid": "MUM-2024-07-1087-Q006", "sibling_text": "difference between foundation seating of me and ae basically the chocks are used in me and ae has flexible foundation which allows a certain degree of movement", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "1. ME vs AE foundation — rigid chocking against resilient mounting", "cross_family": true } ] }, { "qid": "MUM-2026-05-3276-Q003", "text": "Which compressor you worked on?", "family": "Air Compressor", "subtopic": "", "tid": "MUM-2026-05-3276", "tray": "new", "candidates": [ { "answer_id": "UNL-330-002", "score": 0.6389450430870056, "sibling_score": 0.6389450430870056, "answer_score": 0.375909648835659, "sibling_qid": "KOL-2021-01-1571-Q005", "sibling_text": "compressor loader and unloader", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Explain the working of the main air compressor unloader.", "cross_family": false }, { "answer_id": "CAP-CTRL-002", "score": 0.6015475392341614, "sibling_score": 0.6015475392341614, "answer_score": null, "sibling_qid": "KOL-2017-01-1267-Q002", "sibling_text": "refer compressor unloader working", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "CG-002 · How the cylinder-unloader mechanism works", "cross_family": true }, { "answer_id": "AC-VE-005", "score": 0.5970284342765808, "sibling_score": 0.5970284342765808, "answer_score": null, "sibling_qid": "KOC-2026-01-1993-Q030", "sibling_text": "what happens if less and more to compressor", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "If bumping clearance is more or less, what happens, and how do you reduce or adjust it?", "cross_family": false } ] }, { "qid": "MUM-2026-05-3276-Q005", "text": "Resilient chock why in AE?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE Resilient Chock", "tid": "MUM-2026-05-3276", "tray": "new", "candidates": [ { "answer_id": "EMD-MEAE-001", "score": 0.37123531103134155, "sibling_score": 0.37123531103134155, "answer_score": 0.29050989001989364, "sibling_qid": "MUM-2025-10-2433-Q002", "sibling_text": "difference between me and ae foundation cross question on chocks and resilient mounting", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "1. ME vs AE foundation — rigid chocking against resilient mounting", "cross_family": true }, { "answer_id": "AEDEC-291-003", "score": 0.37084725499153137, "sibling_score": 0.37084725499153137, "answer_score": null, "sibling_qid": "KOL-2019-06-3246-Q004", "sibling_text": "starting checks as 2e after ae decarb", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "3. Pre-start checks after decarb / recommissioning", "cross_family": false }, { "answer_id": "CHK-330-001", "score": 0.3560306429862976, "sibling_score": 0.3560306429862976, "answer_score": null, "sibling_qid": "KOC-2022-05-1785-Q007", "sibling_text": "function of chock", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What is the purpose and function of main engine chocks?", "cross_family": true } ] }, { "qid": "MUM-2026-05-3276-Q009", "text": "Checks after Rough weather sailing?", "family": "2-Stroke - Operations & Casualty", "subtopic": "Rough Weather Checks", "tid": "MUM-2026-05-3276", "tray": "review", "candidates": [ { "answer_id": "RWX-CHK-001", "score": 0.7850046753883362, "sibling_score": 0.7850046753883362, "answer_score": 0.5683552622795105, "sibling_qid": "MUM-2025-12-0992-Q011", "sibling_text": "what all checking to be done after rough sea weather facing at port stay", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Engine-room and machinery checks before and after rough weather", "cross_family": false }, { "answer_id": "CRKC-INSP-002", "score": 0.733092725276947, "sibling_score": 0.733092725276947, "answer_score": 0.5030111819505692, "sibling_qid": "MUM-2026-07-3696-Q004", "sibling_text": "me checks after heavy weather checks as a 2e", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Quick crankcase inspection after rough weather or grounding (short port stay)", "cross_family": false }, { "answer_id": "TBR-TT-P02-002", "score": 0.6432381868362427, "sibling_score": 0.6432381868362427, "answer_score": null, "sibling_qid": "KOL-2021-10-3470-Q006", "sibling_text": "your ship passed from a bad weather and you have to check the tightness of the tie rod bolts how you check by rai sir", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Checking tie rod tightness / slackness — stopped and running", "cross_family": true } ] }, { "qid": "MUM-2026-05-3277-Q001", "text": "type of ship after class 4 and aux engine type?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-05-3277", "tray": "new", "candidates": [ { "answer_id": "LLST-AB-001", "score": 0.5663983225822449, "sibling_score": 0.5663983225822449, "answer_score": null, "sibling_qid": "KOC-2026-09-2198-Q001", "sibling_text": "type a and b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.5644426941871643, "sibling_score": 0.5644426941871643, "answer_score": null, "sibling_qid": "MUM-2026-06-3490-Q006", "sibling_text": "engine sailed type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.5639035105705261, "sibling_score": 0.5639035105705261, "answer_score": null, "sibling_qid": "MUM-2026-07-3668-Q004", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false } ] }, { "qid": "MUM-2026-05-3278-Q001", "text": "Rudder carrier bearing measurement?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "MUM-2026-05-3278", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.7191672325134277, "sibling_score": 0.7191672325134277, "answer_score": 0.5584723979234695, "sibling_qid": "KOL-2023-09-3636-Q007", "sibling_text": "rudder drop how to check where to place tramel gauge for measurement how to remove rudder carrier bearing srinivasan sir what type of engine and how to inspect bottom end bearing of connecting rod what all checks to do", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "PRE-TEN-001", "score": 0.7175284624099731, "sibling_score": 0.7175284624099731, "answer_score": null, "sibling_qid": "MUM-2026-06-3504-Q007", "sibling_text": "rudder carrier bearing removal procedure", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Pre-stressing and pre-tensioning in main-engine bolting", "cross_family": false }, { "answer_id": "TRS-002", "score": 0.7139421105384827, "sibling_score": 0.7139421105384827, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false } ] }, { "qid": "MUM-2026-05-3278-Q003", "text": "Umbrella ring?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "", "tid": "MUM-2026-05-3278", "tray": "new", "candidates": [ { "answer_id": "FINJ-008", "score": 0.5645054578781128, "sibling_score": 0.5645054578781128, "answer_score": null, "sibling_qid": "KOL-2024-02-1943-Q002", "sibling_text": "umbrella seal function", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Umbrella seal and leak-off sealing arrangement", "cross_family": false }, { "answer_id": "SHRD-440-001", "score": 0.5337700247764587, "sibling_score": 0.5337700247764587, "answer_score": 0.31726949810981747, "sibling_qid": "MUM-2022-12-2158-Q003", "sibling_text": "shroud ring", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "What is the shroud ring, where is it fitted, and what does it do?", "cross_family": true }, { "answer_id": "PRING-B-004", "score": 0.5248302221298218, "sibling_score": 0.5248302221298218, "answer_score": null, "sibling_qid": "KOC-2025-08-1570-Q015", "sibling_text": "liner how many rings show me positions", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Function, sealing, position & arrangement", "cross_family": true } ] }, { "qid": "MUM-2026-05-3278-Q004", "text": "ME engine cylinder lubrication?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Alpha Lubricator", "tid": "MUM-2026-05-3278", "tray": "review", "candidates": [ { "answer_id": "CYL-LUB-A-001", "score": 0.8449320197105408, "sibling_score": 0.8449320197105408, "answer_score": 0.6099549233913422, "sibling_qid": "MUM-2026-07-3846-Q004", "sibling_text": "me engine cylinder lubrication", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Cylinder lubrication — how it is carried out and its purpose", "cross_family": false }, { "answer_id": "CYL-LUB-A-003", "score": 0.8095993995666504, "sibling_score": 0.8095993995666504, "answer_score": null, "sibling_qid": "KOL-2019-07-1460-Q002", "sibling_text": "cylinder lubrication of me engine line groove cut or nozzle spray oil tangentially property of cyl oil which make oil perfect for cylinder lubrication", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Lubricator quills — arrangement and oil distribution on the liner", "cross_family": false }, { "answer_id": "CYL-LUB-B-006", "score": 0.7904733419418335, "sibling_score": 0.7904733419418335, "answer_score": null, "sibling_qid": "MUM-2025-06-1133-Q005", "sibling_text": "emergency cylinder lubrication in me engine", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Lubricator / CCU failure and emergency cylinder-oil supply", "cross_family": false } ] }, { "qid": "MUM-2026-05-3278-Q007", "text": "TEV , Is it preset from factor or can you make adjustment?", "family": "Refrigeration & AC", "subtopic": "TEV / TXV", "tid": "MUM-2026-05-3278", "tray": "new", "candidates": [ { "answer_id": "TEV-TXV-002", "score": 0.5213945508003235, "sibling_score": 0.5213945508003235, "answer_score": null, "sibling_qid": "CHE-2026-09-3916-Q004", "sibling_text": "tev function", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "TEV / TXV — purpose, construction, location and working", "cross_family": false }, { "answer_id": "TEV-TXV-005", "score": 0.5014593005180359, "sibling_score": 0.5014593005180359, "answer_score": null, "sibling_qid": "KOC-2024-04-0992-Q004", "sibling_text": "throttling of tev reef and ac difference", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Throttling process and superheat control across the TEV", "cross_family": false }, { "answer_id": "TEV-TXV-003", "score": 0.5004061460494995, "sibling_score": 0.5004061460494995, "answer_score": null, "sibling_qid": "MUM-2026-06-3376-Q010", "sibling_text": "external equalising in tev", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Equalizing line — internal vs external equalized TEV", "cross_family": false } ] }, { "qid": "MUM-2026-05-3279-Q001", "text": "Type A, B,C tanks?", "family": "Cargo Ops - Gas Carriers", "subtopic": "Independent Tank Type", "tid": "MUM-2026-05-3279", "tray": "review", "candidates": [ { "answer_id": "GC-TANK-002", "score": 0.6615971922874451, "sibling_score": 0.6615971922874451, "answer_score": null, "sibling_qid": "MUM-2026-04-0920-Q009", "sibling_text": "imo type c tank", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "What is an IMO Type C independent cargo tank?", "cross_family": false }, { "answer_id": "MARVS-TANK-005", "score": 0.6146107316017151, "sibling_score": 0.6146107316017151, "answer_score": null, "sibling_qid": "KOC-2025-07-0633-Q008", "sibling_text": "type of tank name", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Gas-carrier ship-type classification — 2G, 2PG and the IGC-code type criteria", "cross_family": false }, { "answer_id": "GC-TANK-001", "score": 0.5944880843162537, "sibling_score": 0.5944880843162537, "answer_score": 0.4271373093128204, "sibling_qid": "MUM-2026-06-3659-Q004", "sibling_text": "different types of tanks and explain each in detail", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Main cargo containment and independent tank types on LPG and LNG carriers", "cross_family": false } ] }, { "qid": "MUM-2026-05-3279-Q004", "text": "⁠ISM , DOC , SMC, when and how interim SMC is issued?", "family": "ISM Code", "subtopic": "SMC / DOC", "tid": "MUM-2026-05-3279", "tray": "new", "candidates": [ { "answer_id": "ISM-SMCDOC-A-002", "score": 0.6283957362174988, "sibling_score": 0.6283957362174988, "answer_score": 0.359123694896698, "sibling_qid": "CHE-2026-05-0562-Q010", "sibling_text": "interim doc smc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Interim DOC — when, why, how, and how long", "cross_family": false }, { "answer_id": "ISM-SMC-B-002", "score": 0.6147048473358154, "sibling_score": 0.6147048473358154, "answer_score": 0.3871367543935776, "sibling_qid": "KOL-2018-01-0145-Q004", "sibling_text": "interim smc why", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Interim SMC — occasions, procedure and validity", "cross_family": false }, { "answer_id": "ISM-SMC-B-003", "score": 0.36598486006259917, "sibling_score": null, "answer_score": 0.36598486006259917, "sibling_qid": "", "sibling_text": "smc audit cycle initial intermediate renewal additional initial audit first full assessment full smc issued 5 years intermediate verification at least one if only one is carried out on a 5 year smc it is between the 2nd and 3rd anniversary verifies effective sms functioning and that changes still comply", "sibling_family": "", "via": "answer_title", "answer_title": "SMC audit cycle — initial, intermediate, renewal, additional", "cross_family": false } ] }, { "qid": "MUM-2026-05-3282-Q001", "text": "Which Engine?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-05-3282", "tray": "review", "candidates": [ { "answer_id": "MIP-264-003", "score": 0.7317057251930237, "sibling_score": 0.7317057251930237, "answer_score": null, "sibling_qid": "MUM-2026-01-1248-Q002", "sibling_text": "engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Calculate engine power: IHP and BHP, and where each is measured", "cross_family": false }, { "answer_id": "ETP-344-P03-001", "score": 0.700267493724823, "sibling_score": 0.700267493724823, "answer_score": null, "sibling_qid": "KOL-2026-03-2048-Q001", "sibling_text": "type of engine done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.683840811252594, "sibling_score": 0.683840811252594, "answer_score": null, "sibling_qid": "KOL-2026-09-4295-Q002", "sibling_text": "engine name and full form", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false } ] }, { "qid": "MUM-2026-05-3283-Q004", "text": "Steering gear sluggish moment? Action and maintenance?", "family": "Steering Gear & Hydraulics", "subtopic": "", "tid": "MUM-2026-05-3283", "tray": "review", "candidates": [ { "answer_id": "STEER-055-A-004", "score": 0.7985499501228333, "sibling_score": 0.7985499501228333, "answer_score": null, "sibling_qid": "MUM-2026-05-3334-Q004", "sibling_text": "steering gear sluggish moment action and maintenance", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Hydraulic faults — air, sluggish response, locking, leakage", "cross_family": false }, { "answer_id": "STEER-055-A-003", "score": 0.653117835521698, "sibling_score": 0.653117835521698, "answer_score": null, "sibling_qid": "MUM-2025-12-2517-Q002", "sibling_text": "steering gear hunting how to rectify", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Hunting gear, floating lever and buffer spring", "cross_family": false }, { "answer_id": "SG-055-B-002", "score": 0.6440094113349915, "sibling_score": 0.6440094113349915, "answer_score": null, "sibling_qid": "MUM-2026-03-2062-Q009", "sibling_text": "steering gear trips", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Steering-gear alarms, trips and electrical / hydraulic safeties", "cross_family": false } ] }, { "qid": "MUM-2026-05-3285-Q001", "text": "Written status, pre sea training?", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-05-3285", "tray": "new", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.5753361582756042, "sibling_score": 0.5753361582756042, "answer_score": null, "sibling_qid": "MUM-2026-03-0866-Q001", "sibling_text": "coc attempt internal sirish sir external vishwanathan iyer sir started with what function you are applying how many ships type of ships you did after class 4 pre sea from where how many written cleared what about other functions", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "STCW-MAN-006", "score": 0.5572770237922668, "sibling_score": 0.5572770237922668, "answer_score": null, "sibling_qid": "NOI-2026-09-0008-Q001", "sibling_text": "training institue sea time after class 4 coc", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "What are the levels and categories of seafarer under STCW, and what are the duties of the Second Engineer at management level?", "cross_family": false }, { "answer_id": "DUS-P1-02", "score": 0.5536730289459229, "sibling_score": 0.5536730289459229, "answer_score": null, "sibling_qid": "KOL-2025-08-3851-Q006", "sibling_text": "drydock plans rudder checks cross questions what about other written oral exams status told waiting for naval written result to come all other paper cleared", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Plans, drawings and special tools kept ready for drydock — engine-department view", "cross_family": true } ] }, { "qid": "MUM-2026-05-3285-Q009", "text": "Where to write down the is refer released in atmosphere? Recovery bottle use?", "family": "Refrigeration & AC", "subtopic": "Refrigerant Handling / Expansion Valve / Compressor Control Circuit", "tid": "MUM-2026-05-3285", "tray": "new", "candidates": [ { "answer_id": "REEF-CHG-003", "score": 0.6117748618125916, "sibling_score": 0.6117748618125916, "answer_score": 0.41066919565200805, "sibling_qid": "MUM-2025-10-1709-Q010", "sibling_text": "recovery bottle use", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "03Spare and recovery refrigerant bottles: connections and uses", "cross_family": false }, { "answer_id": "AIR-REF-004", "score": 0.5628920197486877, "sibling_score": 0.5628920197486877, "answer_score": null, "sibling_qid": "MUM-2025-01-2790-Q006", "sibling_text": "air venting of ref", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "4. Detecting and purging air from a refrigeration system", "cross_family": false }, { "answer_id": "AIR-REF-002", "score": 0.5454733371734619, "sibling_score": 0.5454733371734619, "answer_score": null, "sibling_qid": "KOL-2025-08-3849-Q003", "sibling_text": "air in the ref system from where it is coming", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "2. How air enters a refrigeration system", "cross_family": false } ] }, { "qid": "MUM-2026-05-3287-Q007S2", "text": "Ward Leonard System ?", "family": "Electrical - Motors & Starters", "subtopic": "Ward Leonard System", "tid": "MUM-2026-05-3287", "tray": "new", "candidates": [ { "answer_id": "WARD-LEO-001", "score": 0.6217437386512756, "sibling_score": 0.6217437386512756, "answer_score": 0.32663090378046034, "sibling_qid": "MUM-2024-12-1475-Q002", "sibling_text": "what is ward leonard", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Explain the Ward Leonard system and its speed-governing principle", "cross_family": false }, { "answer_id": "WARD-LEO-003", "score": 0.31724740862846373, "sibling_score": null, "answer_score": 0.31724740862846373, "sibling_qid": "", "sibling_text": "speed control of a deck windlass motor by ward leonard windlass duty needs high breakout torque a fine creep speed frequent reversal and controlled lowering ward leonard delivers all four heaving speed by the generator field armature voltage control high starting torque because the motor field is held full", "sibling_family": "", "via": "answer_title", "answer_title": "Speed control of a deck windlass motor by Ward Leonard", "cross_family": false }, { "answer_id": "WARD-LEO-002", "score": 0.29392968118190765, "sibling_score": null, "answer_score": 0.29392968118190765, "sibling_qid": "", "sibling_text": "ward leonard in electric steering gear construction working and feedback chain a c motor constant speed ward leonard generator variable field control element d c steering motor rudder stock through reduction gearing helm telemotor order sets the generator field magnitude and polarity rudder speed and direction", "sibling_family": "", "via": "answer_title", "answer_title": "Ward Leonard in electric steering gear — construction, working and feedback", "cross_family": false } ] }, { "qid": "MUM-2026-05-3288-Q004", "text": "Insulated Earth System advantages?", "family": "Electrical - Distribution & Earthing", "subtopic": "", "tid": "MUM-2026-05-3288", "tray": "review", "candidates": [ { "answer_id": "EARTH-NEU-02A-002", "score": 0.7742941975593567, "sibling_score": 0.7742941975593567, "answer_score": 0.3475165843963623, "sibling_qid": "MUM-2026-06-3635-Q001", "sibling_text": "advantages of insulated earth system", "sibling_family": "Electrical - Distribution & Earthing", "via": "sibling", "answer_title": "Insulated neutral vs earthed neutral — how each behaves, where each is used, which is safer", "cross_family": false }, { "answer_id": "EARTH-NEU-02A-001", "score": 0.5654343366622925, "sibling_score": 0.5654343366622925, "answer_score": null, "sibling_qid": "MUM-2026-07-3780-Q004", "sibling_text": "advantages of earth neutral system", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Earthed (neutral-earth) system — what it is, why we use it, pros and cons", "cross_family": true }, { "answer_id": "EF-SHAFT-ERES-P05-001", "score": 0.5498437881469727, "sibling_score": 0.5498437881469727, "answer_score": null, "sibling_qid": "MUM-2026-06-3611-Q004", "sibling_text": "advantages of insulated neutral system", "sibling_family": "Electrical - Distribution & Earthing", "via": "sibling", "answer_title": "Earth fault detection, indication and location", "cross_family": false } ] }, { "qid": "MUM-2026-05-3289-Q001", "text": "Introduction", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-05-3289", "tray": "new", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.4986570477485657, "sibling_score": 0.4986570477485657, "answer_score": null, "sibling_qid": "MUM-2026-05-3248-Q001", "sibling_text": "introduction sea time company pre sea ship type engine type me", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "AIR-DIST-002", "score": 0.48346710205078125, "sibling_score": 0.48346710205078125, "answer_score": null, "sibling_qid": "MUM-2022-12-1037-Q003", "sibling_text": "starting system explain", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Control-air route and starting sequence through the air distributor", "cross_family": true }, { "answer_id": "SOLAS12-C-001", "score": 0.4745365083217621, "sibling_score": 0.4745365083217621, "answer_score": null, "sibling_qid": "KOC-2025-11-0708-Q004", "sibling_text": "explain", "sibling_family": "", "via": "sibling", "answer_title": "Explain SOLAS Chapter XII for bulk carriers — oral-exam overview", "cross_family": false } ] }, { "qid": "MUM-2026-05-3289-Q005", "text": "How much lines connected to fish room TEV ?", "family": "Refrigeration & AC", "subtopic": "TEV / TXV", "tid": "MUM-2026-05-3289", "tray": "new", "candidates": [ { "answer_id": "TEV-TXV-007", "score": 0.5188596844673157, "sibling_score": 0.5188596844673157, "answer_score": 0.29965936839580537, "sibling_qid": "MUM-2025-12-2884-Q011", "sibling_text": "fish room tev is damaged actions", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Faulty TEV in a meat/fish room with no spare — diagnosis and management", "cross_family": false }, { "answer_id": "TEV-TXV-002", "score": 0.4970131516456604, "sibling_score": 0.4970131516456604, "answer_score": null, "sibling_qid": "MUM-2026-02-2926-Q002", "sibling_text": "tev connection equalising line purpose", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "TEV / TXV — purpose, construction, location and working", "cross_family": false }, { "answer_id": "EQ-LINE-001", "score": 0.4793109893798828, "sibling_score": 0.4793109893798828, "answer_score": null, "sibling_qid": "NOI-2026-09-0009-Q005", "sibling_text": "tev working equalising line", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Purpose and function of the equalising line / equalising valve in refrigeration service", "cross_family": false } ] }, { "qid": "MUM-2026-05-3290-Q001", "text": "Introduce yourself( senthil sir- this is very short introduction) ?", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-05-3290", "tray": "new", "candidates": [ { "answer_id": "EEDI-B-002", "score": 0.4377761483192444, "sibling_score": 0.4377761483192444, "answer_score": null, "sibling_qid": "KOL-2023-03-0725-Q005", "sibling_text": "req and attained eedi by srinivasan sir", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Attained EEDI, required EEDI, reference line value and reduction factor", "cross_family": true }, { "answer_id": "A6-NSEC-002", "score": 0.3936825394630432, "sibling_score": 0.3936825394630432, "answer_score": null, "sibling_qid": "KOC-2025-12-0770-Q006", "sibling_text": "nox technical file and contents int senthil", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "NOx Technical Code vs NOx Technical File", "cross_family": true }, { "answer_id": "HV-SYS-P06-003", "score": 0.38788217306137085, "sibling_score": 0.38788217306137085, "answer_score": null, "sibling_qid": "KOC-2025-01-1481-Q012", "sibling_text": "what is arc blast internal senthil sir no question", "sibling_family": "", "via": "sibling", "answer_title": "Arc flash, arc blast and arcing control in HV systems", "cross_family": false } ] }, { "qid": "MUM-2026-05-3290-Q002", "text": "Types of ships sailed?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-05-3290", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8167218565940857, "sibling_score": 0.8167218565940857, "answer_score": null, "sibling_qid": "CHE-2026-09-3938-Q001", "sibling_text": "types of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7802029848098755, "sibling_score": 0.7802029848098755, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7766692042350769, "sibling_score": 0.7766692042350769, "answer_score": 0.5094334453344345, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "MUM-2026-05-3290-Q003", "text": "How many months sailing experience after class 4 ?", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-05-3290", "tray": "new", "candidates": [ { "answer_id": "STCW-MAN-006", "score": 0.5994359254837036, "sibling_score": 0.5994359254837036, "answer_score": null, "sibling_qid": "NOI-2026-09-0008-Q001", "sibling_text": "training institue sea time after class 4 coc", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "What are the levels and categories of seafarer under STCW, and what are the duties of the Second Engineer at management level?", "cross_family": false }, { "answer_id": "STCW-MAN-009", "score": 0.4744628369808197, "sibling_score": 0.4744628369808197, "answer_score": null, "sibling_qid": "KOC-2025-07-0631-Q008", "sibling_text": "what courses to be done to sail on passenger ships", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What additional STCW courses must you do as Second Engineer to join a passenger ship?", "cross_family": true }, { "answer_id": "EXHV-P01-001", "score": 0.4689987897872925, "sibling_score": 0.4689987897872925, "answer_score": null, "sibling_qid": "MUM-2026-03-0866-Q001", "sibling_text": "coc attempt internal sirish sir external vishwanathan iyer sir started with what function you are applying how many ships type of ships you did after class 4 pre sea from where how many written cleared what about other functions", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false } ] }, { "qid": "MUM-2026-05-3290-Q004", "text": "Which attempt for fn3?", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-05-3290", "tray": "new", "candidates": [ { "answer_id": "SEEMP-123-B-001", "score": 0.4568927586078644, "sibling_score": 0.4568927586078644, "answer_score": null, "sibling_qid": "KOC-2026-03-0880-Q002", "sibling_text": "function 3 contents", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SEEMP Part III — the ship's operational carbon-intensity (CII) plan", "cross_family": true }, { "answer_id": "A6-NSEC-005", "score": 0.4426060914993286, "sibling_score": 0.4426060914993286, "answer_score": null, "sibling_qid": "MUM-2024-11-2777-Q007", "sibling_text": "seemp 3", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP — Part I, II & III", "cross_family": true }, { "answer_id": "LLC-SUR-POA-3-FINAL-001", "score": 0.43026983737945557, "sibling_score": 0.43026983737945557, "answer_score": null, "sibling_qid": "MUM-2025-09-0469-Q005", "sibling_text": "condition of assignment few x questions then said we will switch to other fn", "sibling_family": "", "via": "sibling", "answer_title": "Conditions of assignment of freeboard", "cross_family": false } ] }, { "qid": "MUM-2026-05-3291-Q001", "text": "Type of engine ?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-05-3291", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.8005296587944031, "sibling_score": 0.8005296587944031, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.7929258942604065, "sibling_score": 0.7929258942604065, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-001", "score": 0.4521873891353607, "sibling_score": null, "answer_score": 0.4521873891353607, "sibling_qid": "", "sibling_text": "1 turbocharger type main engine vs generator engine compressor is centrifugal in both cases only the turbine type differs large slow speed main engine axial flow turbine single stage constant pressure system", "sibling_family": "", "via": "answer_title", "answer_title": "1. Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "MUM-2026-05-3291-Q010", "text": "What are all stresses in engine and cross question?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-05-3291", "tray": "new", "candidates": [ { "answer_id": "VIB-BAL-A-001", "score": 0.5903726816177368, "sibling_score": 0.5903726816177368, "answer_score": null, "sibling_qid": "CHE-2026-05-0638-Q010", "sibling_text": "what are all stresses in engine and cross question ways to overcome vibration", "sibling_family": "2-Stroke", "via": "sibling", "answer_title": "VIB-A-01 — Engine vibration — what it is, its types and causes, and how it is controlled", "cross_family": true }, { "answer_id": "XHEAD-303-004", "score": 0.5766574144363403, "sibling_score": 0.5766574144363403, "answer_score": 0.482000994682312, "sibling_qid": "KOL-2018-12-1432-Q001", "sibling_text": "what all stresses on crosshd significance of compression ratio gear pmp and it s ovhl and all clearance also uper limit of clearance", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Stresses acting on the crosshead and its components", "cross_family": true }, { "answer_id": "CREEP-FAT-P01-002", "score": 0.5378522872924805, "sibling_score": 0.5378522872924805, "answer_score": null, "sibling_qid": "KOC-2022-07-0972-Q004", "sibling_text": "creep stress what all are the stages where all in main engine creep stress happening", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "What is creep, and what are its stages?", "cross_family": true } ] }, { "qid": "MUM-2026-05-3292-Q010", "text": "what is ex i ?", "family": "Electrical - Motors & Starters", "subtopic": "IP Rating / Enclosure", "tid": "MUM-2026-05-3292", "tray": "new", "candidates": [ { "answer_id": "HAZ-EX-B-001", "score": 0.5946548581123352, "sibling_score": 0.5946548581123352, "answer_score": null, "sibling_qid": "KOL-2021-04-2443-Q001", "sibling_text": "ex i what denotes i", "sibling_family": "", "via": "sibling", "answer_title": "Intrinsically safe (Ex i) equipment — what it is, how it works, where it is used, how you identify it", "cross_family": false }, { "answer_id": "EXD-EXI-A-002", "score": 0.582984209060669, "sibling_score": 0.582984209060669, "answer_score": null, "sibling_qid": "KOL-2019-02-2263-Q004", "sibling_text": "what is exd n exi", "sibling_family": "", "via": "sibling", "answer_title": "Ex d (flameproof / explosion-proof) — construction, shipboard applications and maintenance", "cross_family": false }, { "answer_id": "EXD-EXI-A-001", "score": 0.5640103220939636, "sibling_score": 0.5640103220939636, "answer_score": null, "sibling_qid": "MUM-2026-07-3777-Q001", "sibling_text": "ex i and ex d", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Ex i (intrinsically safe) vs Ex d (flameproof / explosion-proof) — the difference", "cross_family": false } ] }, { "qid": "MUM-2026-05-3292-Q012", "text": "Hazardous zones?", "family": "Cargo Ops - Tankers", "subtopic": "IG System", "tid": "MUM-2026-05-3292", "tray": "new", "candidates": [ { "answer_id": "TCM-374-005", "score": 0.6118615865707397, "sibling_score": 0.6118615865707397, "answer_score": null, "sibling_qid": "KOC-2026-02-0826-Q020", "sibling_text": "hazard zone in chemical tanker", "sibling_family": "Chemical Tankers", "via": "sibling", "answer_title": "Gas-freeing a tanker after discharge or before dry dock (why through the IG system)", "cross_family": true }, { "answer_id": "FLD-601-002", "score": 0.5986933708190918, "sibling_score": 0.5986933708190918, "answer_score": null, "sibling_qid": "MUM-2026-05-3085-Q007", "sibling_text": "what is flammability zone", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What is the flammable range and the flammability zone? What happens inside a cargo tank below 1% LEL?", "cross_family": false }, { "answer_id": "RA-MGMT-A-001", "score": 0.5710085034370422, "sibling_score": 0.5710085034370422, "answer_score": null, "sibling_qid": "KOL-2020-08-3344-Q006", "sibling_text": "hazards definition parts of it", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "What is risk, what is hazard, and what is risk assessment?", "cross_family": true } ] }, { "qid": "MUM-2026-05-3293-Q003", "text": "Electric cable water tight bulkhead penetration ?", "family": "SOLAS - Watertight & Closing Appliances", "subtopic": "Watertight Door", "tid": "MUM-2026-05-3293", "tray": "review", "candidates": [ { "answer_id": "CABLE-INS-C-002", "score": 0.7691270709037781, "sibling_score": 0.7691270709037781, "answer_score": 0.6484980791807174, "sibling_qid": "MUM-2026-05-3295-Q003", "sibling_text": "how cable penetrate watertight bulkhead make diagram", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Cable laying, routing & watertight-bulkhead penetration", "cross_family": true }, { "answer_id": "CBL-INS-B-001", "score": 0.601141095161438, "sibling_score": 0.601141095161438, "answer_score": null, "sibling_qid": "KOL-2016-11-2079-Q006", "sibling_text": "precautions nd safety standards when a cabel is passing through the bulkhead nd arrangement diagram nd few more got both fn 3 nd 5", "sibling_family": "", "via": "sibling", "answer_title": "IEC and marine cable standards for shipboard cables", "cross_family": false }, { "answer_id": "HULL-DD-003", "score": 0.590214192867279, "sibling_score": 0.590214192867279, "answer_score": null, "sibling_qid": "CHE-2026-02-0479-Q004", "sibling_text": "seaside bulkhead hole how to proceed", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "3. Side-shell hole or hull breach at the waterline: emergency action and repair", "cross_family": true } ] }, { "qid": "MUM-2026-05-3293-Q006", "text": "How to increase torque characteristics of SCIM? 7.double cage induction motor ,where it is used ?", "family": "Electrical - Motors & Starters", "subtopic": "Induction Motor (General / Working)", "tid": "MUM-2026-05-3293", "tray": "new", "candidates": [ { "answer_id": "IM-TRQ-P02-001", "score": 0.6475834250450134, "sibling_score": 0.6475834250450134, "answer_score": 0.44247394502162934, "sibling_qid": "MUM-2022-11-1367-Q003", "sibling_text": "how to change torque in wound rotor induction motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Factors affecting torque; conditions for maximum torque", "cross_family": false }, { "answer_id": "IM-TRQ-P02-002", "score": 0.6352869868278503, "sibling_score": 0.6352869868278503, "answer_score": null, "sibling_qid": "KOL-2021-05-3403-Q005", "sibling_text": "how to improve torque character of squirl cage im", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "The torque-speed / torque-slip characteristic curve", "cross_family": false }, { "answer_id": "IM-TSS-P01-002", "score": 0.6277486681938171, "sibling_score": 0.6277486681938171, "answer_score": null, "sibling_qid": "MUM-2026-01-1904-Q005", "sibling_text": "3 phase induction motor rmf and torque and slip characteristics and double cage induction motor max torque formula and slip max", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Torque production, rotor rotation and load response", "cross_family": false } ] }, { "qid": "MUM-2026-05-3294-Q003", "text": "High voltage system what is role of form factor ?", "family": "Electrical - Motors & Starters", "subtopic": "Insulation Class", "tid": "MUM-2026-05-3294", "tray": "new", "candidates": [ { "answer_id": "PF-A-004", "score": 0.5526279807090759, "sibling_score": 0.5526279807090759, "answer_score": null, "sibling_qid": "KOC-2026-03-0877-Q005", "sibling_text": "form factor power factor", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "The bare 'power factor' prompt — and the drills it triggers", "cross_family": true }, { "answer_id": "T038-P01-002", "score": 0.5458691120147705, "sibling_score": 0.5458691120147705, "answer_score": 0.39407323151826856, "sibling_qid": "MUM-2026-07-3677-Q001", "sibling_text": "high voltage system explain", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "HV system onboard — layout, components, applications, earthing & protection", "cross_family": false }, { "answer_id": "RMS-VAL-002", "score": 0.5419797897338867, "sibling_score": 0.5419797897338867, "answer_score": null, "sibling_qid": "CHE-2025-07-0265-Q007", "sibling_text": "form factor value", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Form factor of an AC waveform", "cross_family": true } ] }, { "qid": "MUM-2026-05-3294-Q004", "text": "How to apply it on hv vessel ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-05-3294", "tray": "new", "candidates": [ { "answer_id": "HV-SYS-P02-001", "score": 0.5210443735122681, "sibling_score": 0.5210443735122681, "answer_score": null, "sibling_qid": "KOC-2025-04-1525-Q003", "sibling_text": "why hv on used on ships", "sibling_family": "", "via": "sibling", "answer_title": "Why high voltage is used onboard ships", "cross_family": false }, { "answer_id": "HV-SYS-P06-002", "score": 0.5041199922561646, "sibling_score": 0.5041199922561646, "answer_score": null, "sibling_qid": "KOL-2019-07-2311-Q004", "sibling_text": "how hv is produced in ship", "sibling_family": "", "via": "sibling", "answer_title": "How HV is generated onboard and how the HV alternator is arranged", "cross_family": false }, { "answer_id": "TNK-SAFE-BF26-002", "score": 0.48408007621765137, "sibling_score": 0.48408007621765137, "answer_score": null, "sibling_qid": "CHE-2026-02-0113-Q001", "sibling_text": "type of vessel what type of cargo carried and applications of it static electricity and methods to prevent in tankers cargo tank safeties working of pv valve pv breaker and it s setting marpol annex 1 discharge criteria for er bilges ig system and components safeties in ig system construction of scrubber tower and parts inside scrubber tower function of deck water seal annex 4 regulations working principle of ur stp internal in video external vels mohan", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What safeties are provided on the cargo tanks of an oil, crude or chemical tanker?", "cross_family": true } ] }, { "qid": "MUM-2026-05-3294-Q005", "text": "Kva rating how they decide as per form factor ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "RMS Value", "tid": "MUM-2026-05-3294", "tray": "new", "candidates": [ { "answer_id": "RMS-VAL-006", "score": 0.5915375351905823, "sibling_score": 0.5915375351905823, "answer_score": 0.4402607917785644, "sibling_qid": "KOC-2024-06-1364-Q003", "sibling_text": "why 440 220 110 used instead of 400 200 100 what is form factor and value 1 11", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Why standard voltages are 220, 440, 1100 — not 200, 400, 1000", "cross_family": false }, { "answer_id": "XFMR-THY-E-002", "score": 0.5871565937995911, "sibling_score": 0.5871565937995911, "answer_score": 0.4511702090501785, "sibling_qid": "KOC-2023-10-1289-Q005", "sibling_text": "why transformer rating in kva", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Why a transformer is rated in kVA, not kW", "cross_family": false }, { "answer_id": "RMS-VAL-002", "score": 0.5861544609069824, "sibling_score": 0.5861544609069824, "answer_score": null, "sibling_qid": "CHE-2025-07-0265-Q007", "sibling_text": "form factor value", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Form factor of an AC waveform", "cross_family": false } ] }, { "qid": "MUM-2026-05-3294-Q007", "text": "Which Inmarsat is compulsory?", "family": "Electrical - Protection & Relays", "subtopic": "", "tid": "MUM-2026-05-3294", "tray": "new", "candidates": [ { "answer_id": "bdc-p05-04", "score": 0.5199332237243652, "sibling_score": 0.5199332237243652, "answer_score": null, "sibling_qid": "MUM-2026-05-3288-Q005", "sibling_text": "solas requirement for gmdss and emergency battery", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "CQ-BDC-027 GMDSS, emergency and engine-starting batteries — three systems, three rules Medium", "cross_family": true }, { "answer_id": "bdc-p05-03", "score": 0.5029891133308411, "sibling_score": 0.5029891133308411, "answer_score": null, "sibling_qid": "MUM-2026-05-3273-Q003", "sibling_text": "gmdss and equipment under this", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "CQ-BDC-025 GMDSS reserve battery — requirement, supply, voltage and equipment Medium", "cross_family": true }, { "answer_id": "UNL-330-001", "score": 0.48401862382888794, "sibling_score": 0.48401862382888794, "answer_score": null, "sibling_qid": "MUM-2026-05-3294-Q006", "sibling_text": "gmdss and gmdss equipment", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "What is the function of the main air compressor unloader?", "cross_family": true } ] }, { "qid": "MUM-2026-05-3294-Q009", "text": "What is NEMA standard ?", "family": "Electrical - Distribution & Panels", "subtopic": "", "tid": "MUM-2026-05-3294", "tray": "new", "candidates": [ { "answer_id": "CABLE-INS-E-005", "score": 0.4949165880680084, "sibling_score": 0.4949165880680084, "answer_score": null, "sibling_qid": "MUM-2026-05-3294-Q008", "sibling_text": "standard for electric equipment on board", "sibling_family": "Electrical - Distribution & Panels", "via": "sibling", "answer_title": "Cable properties, safety, standards and condition", "cross_family": false }, { "answer_id": "CBL-INS-A-001", "score": 0.47405412793159485, "sibling_score": 0.47405412793159485, "answer_score": null, "sibling_qid": "KOC-2023-11-1304-Q006", "sibling_text": "iec standard", "sibling_family": "", "via": "sibling", "answer_title": "IEC / marine cable standards used for shipboard cables", "cross_family": false }, { "answer_id": "ENR-P02B-002", "score": 0.4728524088859558, "sibling_score": 0.4728524088859558, "answer_score": null, "sibling_qid": "MUM-2026-09-3886-Q008", "sibling_text": "what is ner and neutral insulated system", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Insulated / isolated neutral system — continuity, fault behaviour, advantages and disadvantages", "cross_family": true } ] }, { "qid": "MUM-2026-05-3295-Q001", "text": "Company name, which city, college Show Passport, CDC", "family": "Status & Introduction", "subtopic": "Company Introduction", "tid": "MUM-2026-05-3295", "tray": "new", "candidates": [ { "answer_id": "HKC-IHM-B-003", "score": 0.44296884536743164, "sibling_score": 0.44296884536743164, "answer_score": null, "sibling_qid": "KOC-2024-12-0485-Q014", "sibling_text": "greenpassport and certificates", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "How are the Green Passport and the IHM related?", "cross_family": true }, { "answer_id": "IAPP-595-003", "score": 0.40653935074806213, "sibling_score": 0.40653935074806213, "answer_score": null, "sibling_qid": "KOL-2023-10-0778-Q009", "sibling_text": "iapp who issues the certificate", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Under which regulation does the IAPP certificate come, and who issues it?", "cross_family": true }, { "answer_id": "CII-107-P04-002", "score": 0.40146109461784363, "sibling_score": 0.40146109461784363, "answer_score": null, "sibling_qid": "KOC-2025-01-2059-Q010", "sibling_text": "cii full and certificate", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Showing and verifying CII compliance — DCS, the Statement of Compliance, records and PSC", "cross_family": true } ] }, { "qid": "MUM-2026-05-3296-Q001", "text": "Type of ship sailed", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-05-3296", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8457899689674377, "sibling_score": 0.8457899689674377, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8448032140731812, "sibling_score": 0.8448032140731812, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7926929593086243, "sibling_score": 0.7926929593086243, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "MUM-2026-05-3297-Q001", "text": "Engine sailed on ?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-05-3297", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.7878643274307251, "sibling_score": 0.7878643274307251, "answer_score": null, "sibling_qid": "MUM-2026-01-1250-Q003", "sibling_text": "engine sailed and cross", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.6369150280952454, "sibling_score": 0.6369150280952454, "answer_score": null, "sibling_qid": "MUM-2026-04-1320-Q002", "sibling_text": "ship sailed on", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ETP-344-P03-001", "score": 0.6257445216178894, "sibling_score": 0.6257445216178894, "answer_score": null, "sibling_qid": "KOL-2026-03-2048-Q001", "sibling_text": "type of engine done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false } ] }, { "qid": "MUM-2026-05-3297-Q002", "text": "No. Of units ?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "EEXI", "tid": "MUM-2026-05-3297", "tray": "review", "candidates": [ { "answer_id": "EEDI-B-001", "score": 0.6830332279205322, "sibling_score": 0.6830332279205322, "answer_score": null, "sibling_qid": "MUM-2026-04-0901-Q008", "sibling_text": "unit", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "EEDI — formula, unit and the calculation terms", "cross_family": false }, { "answer_id": "EEXI-001", "score": 0.6443669199943542, "sibling_score": 0.6443669199943542, "answer_score": null, "sibling_qid": "MUM-2026-02-0730-Q006", "sibling_text": "units of eexi", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is EEXI? Explain it in full — formula, unit, application, and what an existing ship is", "cross_family": false }, { "answer_id": "ICCP-119-P01-003", "score": 0.609146237373352, "sibling_score": 0.609146237373352, "answer_score": null, "sibling_qid": "KOC-2023-10-1287-Q005", "sibling_text": "5 iccp what all unit values u arr noting", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP values, impressed-current meaning, anode/cathode roles and materials", "cross_family": true } ] }, { "qid": "MUM-2026-05-3298-Q001", "text": "Status of other functions", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2026-05-3298", "tray": "new", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.577056348323822, "sibling_score": 0.577056348323822, "answer_score": null, "sibling_qid": "MUM-2026-05-3187-Q001", "sibling_text": "status of other orals and written", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": false }, { "answer_id": "IMO-CODES-P03-002", "score": 0.564052164554596, "sibling_score": 0.564052164554596, "answer_score": null, "sibling_qid": "MUM-2026-03-0815-Q003", "sibling_text": "which function", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": false }, { "answer_id": "AVR-EXC-B-001", "score": 0.5101697444915771, "sibling_score": 0.5101697444915771, "answer_score": null, "sibling_qid": "KOC-2025-12-1676-Q004", "sibling_text": "explain status avr", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Explain the AVR working principle and control-loop operation.", "cross_family": true } ] }, { "qid": "MUM-2026-05-3298-Q002", "text": "Type of ship ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-05-3298", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8361091017723083, "sibling_score": 0.8361091017723083, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8013882637023926, "sibling_score": 0.8013882637023926, "answer_score": 0.5470469176769256, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8000955581665039, "sibling_score": 0.8000955581665039, "answer_score": 0.5211816549301147, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2026-05-3299-Q001", "text": "Type of alternator?", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator / Generator", "tid": "MUM-2026-05-3299", "tray": "review", "candidates": [ { "answer_id": "ALT-GEN-P01-002", "score": 0.7899532318115234, "sibling_score": 0.7899532318115234, "answer_score": 0.5225490748882293, "sibling_qid": "KOL-2022-01-0592-Q007", "sibling_text": "type of alternator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "2. Types of generator/alternator carried onboard", "cross_family": false }, { "answer_id": "ALT-MTN-B-001", "score": 0.7177173495292664, "sibling_score": 0.7177173495292664, "answer_score": null, "sibling_qid": "KOL-2019-08-2318-Q002", "sibling_text": "alternator parts type of windings", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Routine onboard alternator maintenance checks", "cross_family": false }, { "answer_id": "BL-ALT-C-003", "score": 0.7119070291519165, "sibling_score": 0.7119070291519165, "answer_score": null, "sibling_qid": "MUM-2025-11-1781-Q002", "sibling_text": "what alternator explain static type and brush less both", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Compare excitation types: brushed / static / brushless", "cross_family": false } ] }, { "qid": "MUM-2026-05-3300-Q001", "text": "Engine sailed on ?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-05-3300", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.7878643870353699, "sibling_score": 0.7878643870353699, "answer_score": null, "sibling_qid": "MUM-2026-01-1250-Q003", "sibling_text": "engine sailed and cross", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.6369150280952454, "sibling_score": 0.6369150280952454, "answer_score": null, "sibling_qid": "MUM-2026-04-1320-Q002", "sibling_text": "ship sailed on", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ETP-344-P03-001", "score": 0.6257445216178894, "sibling_score": 0.6257445216178894, "answer_score": null, "sibling_qid": "KOL-2026-03-2048-Q001", "sibling_text": "type of engine done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false } ] }, { "qid": "MUM-2026-05-3300-Q005", "text": "Scrap down analysis cross question ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "LO Test / Analysis", "tid": "MUM-2026-05-3300", "tray": "new", "candidates": [ { "answer_id": "SCR-306-A-001", "score": 0.5973552465438843, "sibling_score": 0.5973552465438843, "answer_score": null, "sibling_qid": "KOL-2025-08-2831-Q006", "sibling_text": "scr details cross ques", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What an SCR is and how it works", "cross_family": true }, { "answer_id": "SCAV-323-P02-005", "score": 0.5504043102264404, "sibling_score": 0.5504043102264404, "answer_score": null, "sibling_qid": "CHE-2026-08-3865-Q005", "sibling_text": "scavenge inspection cross ques", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Scavenge-space inspection: preparation, checks and findings", "cross_family": true }, { "answer_id": "A6-NSEC-005", "score": 0.5474411249160767, "sibling_score": 0.5474411249160767, "answer_score": null, "sibling_qid": "MUM-2024-11-0222-Q002", "sibling_text": "seemp all parts cross questions", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP — Part I, II & III", "cross_family": true } ] }, { "qid": "MUM-2026-05-3300-Q006", "text": "Knocking Types Why and what actions to take ?", "family": "2-Stroke - Exhaust, Valve & Starting Air", "subtopic": "Exhaust Valve", "tid": "MUM-2026-05-3300", "tray": "new", "candidates": [ { "answer_id": "CAS-ESTOP-006", "score": 0.5691095590591431, "sibling_score": 0.5691095590591431, "answer_score": null, "sibling_qid": "MUM-2022-10-0061-Q011", "sibling_text": "what action to take when you hear knocking sound", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Abnormal symptoms — knocking, piston seizure, sump water, hot starting-air line", "cross_family": true }, { "answer_id": "ENG-KNOCK-001", "score": 0.5607273578643799, "sibling_score": 0.5607273578643799, "answer_score": 0.2832783967256546, "sibling_qid": "CHE-2026-04-0263-Q004", "sibling_text": "what is knocking", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What is diesel knock, why does it happen, and how do you overcome it?", "cross_family": true }, { "answer_id": "ENG-KNOCK-002", "score": 0.5030205249786377, "sibling_score": 0.5030205249786377, "answer_score": 0.37384696751832963, "sibling_qid": "KOL-2016-11-1251-Q005", "sibling_text": "knocking in no 4 unit ur action", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "A knocking sound comes from one unit of the main engine on your watch. What are the causes and what is\n your action?", "cross_family": true } ] }, { "qid": "MUM-2026-05-3300-Q007", "text": "High disc pr in reefer why and what actions?", "family": "Refrigeration & AC", "subtopic": "Suction / Discharge Line", "tid": "MUM-2026-05-3300", "tray": "new", "candidates": [ { "answer_id": "CCSC-314-001", "score": 0.4820646345615387, "sibling_score": 0.4820646345615387, "answer_score": null, "sibling_qid": "MUM-2025-05-2292-Q001", "sibling_text": "after reefer compressor starts what all results in restarting of compressor i said if the reefer room door is open or fresh provisions are brought in it results in increase in temp of refrigerant and hp on suction side still he was not satisfied", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Refrigeration compressor short cycling — meaning, causes and corrective action", "cross_family": false }, { "answer_id": "REEF-COMP-001", "score": 0.4613035321235657, "sibling_score": 0.4613035321235657, "answer_score": 0.3518371805548668, "sibling_qid": "KOC-2026-05-0029-Q005", "sibling_text": "what happens when there is a sudden high pressure in reefer system don t want to hear hp trip explain how it is relieved", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Reefer/AC compressor safeties and cut-outs — safety valve, HP and LP cut-outs", "cross_family": false }, { "answer_id": "REEF-COMP-004", "score": 0.45099514722824097, "sibling_score": 0.45099514722824097, "answer_score": null, "sibling_qid": "KOL-2024-10-3715-Q001", "sibling_text": "reefer compressor lo charging i said i have read about it but i am not able to recall at the moment", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Charging, replenishing and draining compressor lube oil — including with no charging pump", "cross_family": false } ] }, { "qid": "MUM-2026-05-3300-Q010", "text": "Air in AC system, checks and how to remove . MEP", "family": "Refrigeration & AC", "subtopic": "Air in System", "tid": "MUM-2026-05-3300", "tray": "new", "candidates": [ { "answer_id": "AIR-REF-001", "score": 0.5495642423629761, "sibling_score": 0.5495642423629761, "answer_score": null, "sibling_qid": "MUM-2023-07-2181-Q005", "sibling_text": "air in refrigeration system how will you confirm procedure for removal of air from system", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "1. Indications that air is present in a refrigeration system", "cross_family": false }, { "answer_id": "AIR-REF-004", "score": 0.5354519486427307, "sibling_score": 0.5354519486427307, "answer_score": 0.4002086102962494, "sibling_qid": "KOC-2026-04-2020-Q008", "sibling_text": "how will you remove air from the refrigeration system x how will you find air is purged and refrigerant is coming out", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "4. Detecting and purging air from a refrigeration system", "cross_family": false }, { "answer_id": "AIR-REF-005", "score": 0.4014039248228073, "sibling_score": null, "answer_score": 0.4014039248228073, "sibling_qid": "", "sibling_text": "5 removing air using a recovery purge unit same indications prompt the check high head pressure not matching saturation temperature hot discharge poor cooling automatic purge unit takes gas from condenser top sub cools in a purge chamber condenses refrigerant back vents only residual air", "sibling_family": "", "via": "answer_title", "answer_title": "5. Removing air using a recovery / purge unit", "cross_family": false } ] }, { "qid": "MUM-2026-05-3301-Q001", "text": "Type of engine ?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-05-3301", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.7998000383377075, "sibling_score": 0.7998000383377075, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.7921890020370483, "sibling_score": 0.7921890020370483, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-001", "score": 0.45207613110542294, "sibling_score": null, "answer_score": 0.45207613110542294, "sibling_qid": "", "sibling_text": "1 turbocharger type main engine vs generator engine compressor is centrifugal in both cases only the turbine type differs large slow speed main engine axial flow turbine single stage constant pressure system", "sibling_family": "", "via": "answer_title", "answer_title": "1. Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "MUM-2026-05-3301-Q004", "text": "Power measurement of engine, how many ways ?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Engine Theory / Performance", "tid": "MUM-2026-05-3301", "tray": "review", "candidates": [ { "answer_id": "PERF-470-003", "score": 0.7036189436912537, "sibling_score": 0.7036189436912537, "answer_score": 0.5284552752971649, "sibling_qid": "MUM-2026-07-3671-Q003", "sibling_text": "how to measure power of main engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main-engine power calculation — formulae and cross-checks", "cross_family": false }, { "answer_id": "IND-CARD-A-001", "score": 0.6630006432533264, "sibling_score": 0.6630006432533264, "answer_score": null, "sibling_qid": "KOL-2022-06-1691-Q002", "sibling_text": "calculating power from engine developed power ind diagrams", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Reading the power / draw card — what it tells you", "cross_family": false }, { "answer_id": "IND-CARD-B-003", "score": 0.6606233716011047, "sibling_score": 0.6606233716011047, "answer_score": 0.516862604022026, "sibling_qid": "KOL-2022-05-1683-Q002", "sibling_text": "how to find out the power generated by engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Power calculation from the indicator / power card", "cross_family": false } ] }, { "qid": "MUM-2026-05-3302-Q001", "text": "Type of ship and engine", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "MUM-2026-05-3302", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8332309722900391, "sibling_score": 0.8332309722900391, "answer_score": null, "sibling_qid": "MUM-2025-08-2357-Q001", "sibling_text": "type of ship type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.8270484805107117, "sibling_score": 0.8270484805107117, "answer_score": null, "sibling_qid": "MUM-2026-07-3668-Q004", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7615407705307007, "sibling_score": 0.7615407705307007, "answer_score": null, "sibling_qid": "KOL-2025-12-2031-Q002", "sibling_text": "type of ship and engine sailed engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "MUM-2026-05-3302-Q002", "text": "What is wrought iron ? And where it is used ? ( x- questions )", "family": "NDT & Material Testing", "subtopic": "Material Properties", "tid": "MUM-2026-05-3302", "tray": "new", "candidates": [ { "answer_id": "MATPROP-A-003", "score": 0.5740388035774231, "sibling_score": 0.5740388035774231, "answer_score": null, "sibling_qid": "CHE-2025-12-0236-Q007", "sibling_text": "what is cast iron", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Cast iron: grey, white, nodular; versus cast steel", "cross_family": false }, { "answer_id": "STEEL-GR-002", "score": 0.53182452917099, "sibling_score": 0.53182452917099, "answer_score": 0.3637720614671707, "sibling_qid": "KOC-2023-08-1818-Q009", "sibling_text": "what is mild steel where used", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Mild steel — composition, use, and how it differs from cast iron", "cross_family": false }, { "answer_id": "HT-A-001", "score": 0.5073718428611755, "sibling_score": 0.5073718428611755, "answer_score": null, "sibling_qid": "CHE-2026-05-0569-Q003", "sibling_text": "why cast iron and heat treatment process", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Heat treatment: what it is, the main methods, and why it is done", "cross_family": false } ] }, { "qid": "MUM-2026-05-3302-Q004", "text": "Me and ae how they are connected to hull ?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE vs ME Differences", "tid": "MUM-2026-05-3302", "tray": "new", "candidates": [ { "answer_id": "AEME-DIFF-001", "score": 0.48323118686676025, "sibling_score": 0.48323118686676025, "answer_score": null, "sibling_qid": "MUM-2025-11-2868-Q007", "sibling_text": "construction between ae me", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "ENG-NOM-001", "score": 0.3787136673927307, "sibling_score": 0.3787136673927307, "answer_score": null, "sibling_qid": "MUM-2026-04-2986-Q001", "sibling_text": "nomenclature of me and ae", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Nomenclature of ME and AE (asked together)", "cross_family": true }, { "answer_id": "SAC-ANODE-001", "score": 0.3702729046344757, "sibling_score": 0.3702729046344757, "answer_score": 0.2704544901847839, "sibling_qid": "MUM-2026-01-1858-Q003", "sibling_text": "how anode connected to hull", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "How is a sacrificial anode electrically connected to the hull?", "cross_family": true } ] }, { "qid": "MUM-2026-05-3302-Q005", "text": "Why resilient chock for AE ?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE Resilient Chock", "tid": "MUM-2026-05-3302", "tray": "new", "candidates": [ { "answer_id": "AEDEC-291-003", "score": 0.37626197934150696, "sibling_score": 0.37626197934150696, "answer_score": null, "sibling_qid": "KOL-2019-06-3246-Q004", "sibling_text": "starting checks as 2e after ae decarb", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "3. Pre-start checks after decarb / recommissioning", "cross_family": false }, { "answer_id": "AEDEC-291-001", "score": 0.35865074396133423, "sibling_score": 0.35865074396133423, "answer_score": null, "sibling_qid": "CHE-2026-03-0486-Q009", "sibling_text": "maintenance done on ae", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "1. AE decarb / overhaul — preparation and full procedure", "cross_family": false }, { "answer_id": "EMD-MEAE-001", "score": 0.3567982017993927, "sibling_score": 0.3567982017993927, "answer_score": 0.27912473827600476, "sibling_qid": "MUM-2025-10-2433-Q002", "sibling_text": "difference between me and ae foundation cross question on chocks and resilient mounting", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "1. ME vs AE foundation — rigid chocking against resilient mounting", "cross_family": true } ] }, { "qid": "MUM-2026-05-3303-Q003", "text": "Coatings related question ?", "family": "NDT & Material Testing", "subtopic": "", "tid": "MUM-2026-05-3303", "tray": "review", "candidates": [ { "answer_id": "COAT-543-002", "score": 0.6516018509864807, "sibling_score": 0.6516018509864807, "answer_score": 0.43102211952209474, "sibling_qid": "MUM-2022-11-2717-Q015", "sibling_text": "cermet coating why used", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Cermet and aluminium (alu) coatings — purpose and applications", "cross_family": false }, { "answer_id": "HULL-PAINT-002", "score": 0.6275235414505005, "sibling_score": 0.6275235414505005, "answer_score": 0.44924964010715485, "sibling_qid": "KOC-2022-12-0117-Q003", "sibling_text": "hull coatings there requirements and why used in detail", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Types of hull coating, the paint scheme by section, and why each is used", "cross_family": true }, { "answer_id": "WMAT-170-001", "score": 0.6261871457099915, "sibling_score": 0.6261871457099915, "answer_score": null, "sibling_qid": "CHE-2026-05-0644-Q009", "sibling_text": "what is white metal and why specifically is it used wants the property of white metal what is the coating thickness of white metal", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "White metal (Babbitt): composition, purpose, properties, layer thickness", "cross_family": true } ] }, { "qid": "MUM-2026-05-3303-Q004", "text": "New type coating ?", "family": "NDT & Material Testing", "subtopic": "", "tid": "MUM-2026-05-3303", "tray": "new", "candidates": [ { "answer_id": "COAT-543-002", "score": 0.5968872308731079, "sibling_score": 0.5968872308731079, "answer_score": null, "sibling_qid": "MUM-2026-03-2609-Q002", "sibling_text": "alu coat", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Cermet and aluminium (alu) coatings — purpose and applications", "cross_family": false }, { "answer_id": "AFS-309-004", "score": 0.5432082414627075, "sibling_score": 0.5432082414627075, "answer_score": 0.3943630039691925, "sibling_qid": "KOC-2024-05-0338-Q004", "sibling_text": "hull coatings type and explain", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Anti-fouling paint types, biocide-free coatings, and the harm from TBT and cybutryne", "cross_family": true }, { "answer_id": "WELD-PATM-007", "score": 0.5361131429672241, "sibling_score": 0.5361131429672241, "answer_score": 0.3652133494615555, "sibling_qid": "KOL-2021-12-3499-Q006", "sibling_text": "plasma coating", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Plasma spraying / coating / cladding", "cross_family": true } ] }, { "qid": "MUM-2026-05-3303-Q005", "text": "Previous coatings type ?", "family": "NDT & Material Testing", "subtopic": "", "tid": "MUM-2026-05-3303", "tray": "new", "candidates": [ { "answer_id": "COAT-543-002", "score": 0.633606493473053, "sibling_score": 0.633606493473053, "answer_score": null, "sibling_qid": "MUM-2026-03-2609-Q002", "sibling_text": "alu coat", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Cermet and aluminium (alu) coatings — purpose and applications", "cross_family": false }, { "answer_id": "AFS-309-004", "score": 0.5944386720657349, "sibling_score": 0.5944386720657349, "answer_score": 0.42799484729766846, "sibling_qid": "KOC-2024-05-0338-Q004", "sibling_text": "hull coatings type and explain", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Anti-fouling paint types, biocide-free coatings, and the harm from TBT and cybutryne", "cross_family": true }, { "answer_id": "HT-A-001", "score": 0.5920825600624084, "sibling_score": 0.5920825600624084, "answer_score": null, "sibling_qid": "MUM-2026-03-2617-Q007", "sibling_text": "type of hear treatment process on different material", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Heat treatment: what it is, the main methods, and why it is done", "cross_family": false } ] }, { "qid": "MUM-2026-05-3303-Q006", "text": "Grades of coatings ?", "family": "NDT & Material Testing", "subtopic": "", "tid": "MUM-2026-05-3303", "tray": "new", "candidates": [ { "answer_id": "COAT-543-002", "score": 0.515110433101654, "sibling_score": 0.515110433101654, "answer_score": null, "sibling_qid": "MUM-2026-02-1255-Q016", "sibling_text": "cermet coating", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Cermet and aluminium (alu) coatings — purpose and applications", "cross_family": false }, { "answer_id": "STEEL-GR-004", "score": 0.5003004670143127, "sibling_score": 0.5003004670143127, "answer_score": null, "sibling_qid": "MUM-2026-06-3582-Q005", "sibling_text": "grades of steel used", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Types of steel and the effect of alloying elements", "cross_family": false }, { "answer_id": "COAT-543-004", "score": 0.49862706661224365, "sibling_score": 0.49862706661224365, "answer_score": null, "sibling_qid": "KOL-2020-06-1536-Q009", "sibling_text": "stellite coating name the process", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Stellite and nickel coatings — process and purpose", "cross_family": false } ] }, { "qid": "MUM-2026-05-3304-Q001", "text": "Difference between interim and initial audit?", "family": "ISM Code", "subtopic": "SMC / DOC", "tid": "MUM-2026-05-3304", "tray": "review", "candidates": [ { "answer_id": "ISM-SMC-B-002", "score": 0.6781783699989319, "sibling_score": 0.6781783699989319, "answer_score": null, "sibling_qid": "MUM-2026-08-3855-Q006", "sibling_text": "what is the difference between between interim initial smc audit", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Interim SMC — occasions, procedure and validity", "cross_family": false }, { "answer_id": "ISM-SMCDOC-A-001", "score": 0.669661283493042, "sibling_score": 0.669661283493042, "answer_score": null, "sibling_qid": "MUM-2025-12-0648-Q004", "sibling_text": "wat is interim audit and initial audit", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM certificates: the DOC and SMC family", "cross_family": false }, { "answer_id": "ISM-AUD-P03-001", "score": 0.655967652797699, "sibling_score": 0.655967652797699, "answer_score": 0.353241154551506, "sibling_qid": "KOL-2026-02-1180-Q003", "sibling_text": "difference between audit and interim audit", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Audit vs survey vs inspection; initial vs interim audit", "cross_family": false } ] }, { "qid": "MUM-2026-05-3305-Q004", "text": "What are factors for low IR ?", "family": "Electrical - Motors & Starters", "subtopic": "", "tid": "MUM-2026-05-3305", "tray": "new", "candidates": [ { "answer_id": "IR-TEST-D-001", "score": 0.5066856741905212, "sibling_score": 0.5066856741905212, "answer_score": null, "sibling_qid": "MUM-2023-06-1390-Q001", "sibling_text": "what is ir significance n factors affecting it", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What insulation resistance is — definition, significance, factors", "cross_family": false }, { "answer_id": "IR-TEST-B-008", "score": 0.425078809261322, "sibling_score": 0.425078809261322, "answer_score": null, "sibling_qid": "CHE-2025-10-0307-Q003", "sibling_text": "how to improve ir value how to take ir value", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Improving or restoring low insulation resistance", "cross_family": false }, { "answer_id": "IRT-C-011", "score": 0.4212111473083496, "sibling_score": null, "answer_score": 0.4212111473083496, "sibling_qid": "", "sibling_text": "low ir causes what to check restoring it causes in order of likelihood moisture condensation ingress contamination salt oil dust carbon thermal ageing overheating embrittling insulation mechanical damage abrasion vibration genuine turn to turn or earth fault first confirm the reading is real clean bare metal earth contact full 1 min settle correct temperature right voltage", "sibling_family": "", "via": "answer_title", "answer_title": "Low IR — causes, what to check, restoring it", "cross_family": false } ] }, { "qid": "MUM-2026-05-3306-Q004", "text": "Full survey ?", "family": "Drydock & Underwater Surveys", "subtopic": "Stern Tube / Tail Shaft", "tid": "MUM-2026-05-3306", "tray": "new", "candidates": [ { "answer_id": "ELEC-SURV-007", "score": 0.63605797290802, "sibling_score": 0.63605797290802, "answer_score": null, "sibling_qid": "MUM-2026-01-1877-Q008", "sibling_text": "msb survey full", "sibling_family": "Electrical - Distribution & MSB", "via": "sibling", "answer_title": "Main switchboard survey & ACB testing", "cross_family": true }, { "answer_id": "CSAS-SURV-001", "score": 0.623284637928009, "sibling_score": 0.623284637928009, "answer_score": null, "sibling_qid": "KOL-2025-12-1152-Q003", "sibling_text": "class survey", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Certificate of class — what it is, who issues it, what class looks after", "cross_family": false }, { "answer_id": "CSAS-SURV-002", "score": 0.6229897737503052, "sibling_score": 0.6229897737503052, "answer_score": null, "sibling_qid": "KOC-2025-12-0752-Q003", "sibling_text": "class survey", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Main types of class surveys on a cargo ship", "cross_family": false } ] }, { "qid": "MUM-2026-05-3306-Q006", "text": "Heat no ?", "family": "SOLAS - Fire Safety", "subtopic": "Fire Detector Type", "tid": "MUM-2026-05-3306", "tray": "new", "candidates": [ { "answer_id": "FSH-DET-004", "score": 0.589475154876709, "sibling_score": 0.589475154876709, "answer_score": null, "sibling_qid": "KOL-2021-09-0552-Q004", "sibling_text": "heat detector working", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Heat detector locations onboard, and why heat detectors in ECR, workshop and machinery spaces", "cross_family": false }, { "answer_id": "CAS-ESTOP-006", "score": 0.5434465408325195, "sibling_score": 0.5434465408325195, "answer_score": null, "sibling_qid": "MUM-2026-05-3268-Q009", "sibling_text": "no 3 unit starting air line hot your actions", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Abnormal symptoms — knocking, piston seizure, sump water, hot starting-air line", "cross_family": true }, { "answer_id": "BFM-330-001", "score": 0.5226135849952698, "sibling_score": 0.5226135849952698, "answer_score": null, "sibling_qid": "CHE-2026-04-0506-Q001", "sibling_text": "boiler not burning checks", "sibling_family": "Boilers - Burner & Combustion Control", "via": "sibling", "answer_title": "Boiler flame failure or burner not firing — troubleshooting", "cross_family": true } ] }, { "qid": "MUM-2026-05-3306-Q009", "text": "D shackle material How connected ?", "family": "NDT & Material Testing", "subtopic": "Material Properties", "tid": "MUM-2026-05-3306", "tray": "review", "candidates": [ { "answer_id": "ANCH-CHN-A-002", "score": 0.7402758002281189, "sibling_score": 0.7402758002281189, "answer_score": 0.4492593675851822, "sibling_qid": "MUM-2026-05-3306-Q008", "sibling_text": "connection joining shackle material", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Chain construction: material, stud links & joining shackles", "cross_family": false }, { "answer_id": "ANCH-CHN-A-004", "score": 0.6047462821006775, "sibling_score": 0.6047462821006775, "answer_score": 0.4024295911192894, "sibling_qid": "KOC-2024-01-1828-Q005", "sibling_text": "how chain connected to anchor swivel block each cable connected by d shackle", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Cable arrangement: anchor to bitter end, and the bitter-end release", "cross_family": true }, { "answer_id": "ANCH-CHN-A-003", "score": 0.5203719735145569, "sibling_score": 0.5203719735145569, "answer_score": null, "sibling_qid": "MUM-2026-05-3187-Q003S3", "sibling_text": "what is one shackle", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Equipment Number & how cable length is decided", "cross_family": true } ] }, { "qid": "MUM-2026-05-3306-Q012", "text": "Eutectoid point ?", "family": "NDT & Material Testing", "subtopic": "Iron-Carbon Diagram", "tid": "MUM-2026-05-3306", "tray": "new", "candidates": [ { "answer_id": "ICD-065-002", "score": 0.5350604057312012, "sibling_score": 0.5350604057312012, "answer_score": 0.46850077509880067, "sibling_qid": "MUM-2023-12-1068-Q005", "sibling_text": "what is eutectic steel", "sibling_family": "Materials & Metallurgy", "via": "sibling", "answer_title": "What is eutectic steel?", "cross_family": true }, { "answer_id": "ICD-065-001", "score": 0.5117081999778748, "sibling_score": 0.5117081999778748, "answer_score": 0.37707317173480986, "sibling_qid": "MUM-2026-06-3356-Q001", "sibling_text": "iron carbide diagram draw percentage of carbon in ferrite austenite perlite etc etc", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Draw and explain the iron-carbon diagram in full detail", "cross_family": false }, { "answer_id": "MATPROP-A-004", "score": 0.5014742612838745, "sibling_score": 0.5014742612838745, "answer_score": null, "sibling_qid": "KOL-2022-03-3527-Q005", "sibling_text": "on yield point", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Mechanical properties", "cross_family": false } ] }, { "qid": "MUM-2026-05-3307-Q002", "text": "Refer system tripping on high pressure ?", "family": "Refrigeration & AC", "subtopic": "HP / LP Trip", "tid": "MUM-2026-05-3307", "tray": "review", "candidates": [ { "answer_id": "RAC-HPLP-389-001", "score": 0.8434072136878967, "sibling_score": 0.8434072136878967, "answer_score": 0.4897556185722351, "sibling_qid": "MUM-2025-10-2438-Q002", "sibling_text": "refer system tripping on high pressure", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Refrigeration / AC compressor trips on high pressure — causes and checks", "cross_family": false }, { "answer_id": "REEF-COMP-001", "score": 0.762106716632843, "sibling_score": 0.762106716632843, "answer_score": null, "sibling_qid": "KOC-2024-07-1370-Q007", "sibling_text": "high pressure trip on refer compressor", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Reefer/AC compressor safeties and cut-outs — safety valve, HP and LP cut-outs", "cross_family": false }, { "answer_id": "REEF-COMP-002", "score": 0.7159362435340881, "sibling_score": 0.7159362435340881, "answer_score": null, "sibling_qid": "KOC-2025-11-1619-Q004", "sibling_text": "refer lo low pressure trip working", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Lube-oil low-pressure / differential-pressure trip — how it works, tests and sets", "cross_family": false } ] }, { "qid": "MUM-2026-05-3307-Q008", "text": "Up to how much depth ?", "family": "NDT & Material Testing", "subtopic": "NDT Methods (MPI/DPT/UT/RT)", "tid": "MUM-2026-05-3307", "tray": "review", "candidates": [ { "answer_id": "NDT-METH-P03-003", "score": 0.6735978126525879, "sibling_score": 0.6735978126525879, "answer_score": null, "sibling_qid": "MUM-2025-10-2438-Q009", "sibling_text": "upto how much depth", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Two or more NDT processes with shipboard applications", "cross_family": false }, { "answer_id": "AII-DISCH-004", "score": 0.42421039938926697, "sibling_score": 0.42421039938926697, "answer_score": null, "sibling_qid": "KOC-2025-04-0586-Q005", "sibling_text": "depth of dischage connection below waterline i said 4 5 m below he didn t say anything", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Annex II requirements for the discharge outlet position and the discharge rate", "cross_family": true }, { "answer_id": "DES-571-002", "score": 0.3950624465942383, "sibling_score": 0.3950624465942383, "answer_score": null, "sibling_qid": "KOC-2023-10-0225-Q014", "sibling_text": "depth and speed what instrument", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Instruments that measure depth and speed", "cross_family": true } ] }, { "qid": "MUM-2026-05-3307-Q011", "text": "How will you paint rudder inside and outside ?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Painting", "tid": "MUM-2026-05-3307", "tray": "review", "candidates": [ { "answer_id": "HULL-PAINT-002", "score": 0.7424308657646179, "sibling_score": 0.7424308657646179, "answer_score": null, "sibling_qid": "CHE-2026-02-0110-Q012", "sibling_text": "rudder internal painting", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Types of hull coating, the paint scheme by section, and why each is used", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.7424308657646179, "sibling_score": 0.7424308657646179, "answer_score": null, "sibling_qid": "MUM-2026-05-3150-Q003", "sibling_text": "rudder internal painting", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "AIRBTL-CORR-001", "score": 0.5373485088348389, "sibling_score": 0.5373485088348389, "answer_score": null, "sibling_qid": "KOL-2024-03-1775-Q005", "sibling_text": "air bottle inspection 2 rudder inspection painting why 2 45 m", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "AIRBTL-CORR-01 — Air bottle survey and internal inspection — preparation, checks and what you show the surveyor", "cross_family": true } ] }, { "qid": "MUM-2026-05-3308-Q001", "text": "Last ship engine ?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-05-3308", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-003", "score": 0.7022998332977295, "sibling_score": 0.7022998332977295, "answer_score": null, "sibling_qid": "KOC-2025-08-1938-Q005", "sibling_text": "last ship engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Engine nomenclature, layout, mark number and engine constant", "cross_family": true }, { "answer_id": "ENG-NOM-005", "score": 0.6954619884490967, "sibling_score": 0.6954619884490967, "answer_score": null, "sibling_qid": "MUM-2026-05-3164-Q001", "sibling_text": "last ship sailed main engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true }, { "answer_id": "ILK-318-001", "score": 0.6327411532402039, "sibling_score": 0.6327411532402039, "answer_score": null, "sibling_qid": "MUM-2022-09-1021-Q005", "sibling_text": "interlocks in me engine in your last ship", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "1. What are the main engine interlocks?", "cross_family": true } ] }, { "qid": "MUM-2026-05-3309-Q002", "text": "Mark no version no ?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "MC-C vs MEB Engine", "tid": "MUM-2026-05-3309", "tray": "new", "candidates": [ { "answer_id": "AV6-P01-01", "score": 0.4937819242477417, "sibling_score": 0.4937819242477417, "answer_score": null, "sibling_qid": "MUM-2026-08-3853-Q004", "sibling_text": "nox latest amendments", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Explain the latest Annex VI amendment or MEPC development, and state its date and status.", "cross_family": true }, { "answer_id": "ENG-NOM-003", "score": 0.4917478561401367, "sibling_score": 0.4917478561401367, "answer_score": null, "sibling_qid": "KOC-2026-03-1116-Q004", "sibling_text": "what does the mark number signifies", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Stroke letters S/L/K/G, stroke-bore ratio, mark and series number", "cross_family": false }, { "answer_id": "VIB-BAL-B-003", "score": 0.486078143119812, "sibling_score": 0.486078143119812, "answer_score": null, "sibling_qid": "KOL-2018-08-0204-Q006", "sibling_text": "not remember", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Torsional vibration: what it is, what causes it, how it is controlled", "cross_family": false } ] }, { "qid": "MUM-2026-05-3309-Q003", "text": "How to take performance without taking cards?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Performance parameters", "tid": "MUM-2026-05-3309", "tray": "new", "candidates": [ { "answer_id": "CPP-POL-01", "score": 0.5951642394065857, "sibling_score": 0.5951642394065857, "answer_score": null, "sibling_qid": "KOL-2016-09-1236-Q011", "sibling_text": "parameters to assess m e performance with out taking indicator cards", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Why and how is a main-engine performance test prepared, taken and assessed?", "cross_family": false }, { "answer_id": "VIT-MECH-C-001", "score": 0.5434245467185974, "sibling_score": 0.5434245467185974, "answer_score": null, "sibling_qid": "KOL-2017-07-1852-Q011", "sibling_text": "draw performance card with and without vit difference", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "MAN B&W MC VIT — varying the start of injection on a helix pump", "cross_family": true }, { "answer_id": "IND-CARD-A-002", "score": 0.46848064661026, "sibling_score": 0.46848064661026, "answer_score": null, "sibling_qid": "KOL-2023-03-1730-Q011", "sibling_text": "types of cards how to take", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "The four indicator cards and how they differ", "cross_family": false } ] }, { "qid": "MUM-2026-05-3309-Q009", "text": "Saftey valve full all types advancement s ?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2026-05-3309", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.6829801201820374, "sibling_score": 0.6829801201820374, "answer_score": null, "sibling_qid": "MUM-2026-09-3885-Q006", "sibling_text": "all types of safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "MR-DS-PV-B-006", "score": 0.6740913391113281, "sibling_score": 0.6740913391113281, "answer_score": null, "sibling_qid": "KOC-2026-09-2180-Q009", "sibling_text": "full bore safety valve construction", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "6. Deck isolating valve, deck relief/safety devices, and cargo-tank pressure", "cross_family": false }, { "answer_id": "SCAV-323-P02-008", "score": 0.46473867297172544, "sibling_score": null, "answer_score": 0.46473867297172544, "sibling_qid": "", "sibling_text": "safeties and relief arrangements for the scavenge space hazard oily deposits blow past air scavenge fire explosion relief valve door fitted per the maker s design scavenge air receiver or cylinder section spring loaded cup spring lifts at permitted overpressure self closing to prevent air re entry", "sibling_family": "", "via": "answer_title", "answer_title": "Safeties and relief arrangements for the scavenge space", "cross_family": false } ] }, { "qid": "MUM-2026-05-3310-Q001", "text": "Difference between 4s and 2s fuel pump?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Cam & Lead", "tid": "MUM-2026-05-3310", "tray": "new", "candidates": [ { "answer_id": "FCL-P02-001", "score": 0.5923722386360168, "sibling_score": 0.5923722386360168, "answer_score": null, "sibling_qid": "KOC-2024-05-1842-Q003", "sibling_text": "2s fuel pump timing method any one", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel pump / injection timing check, setting, and adjustment", "cross_family": false }, { "answer_id": "FIS-221-004", "score": 0.5886630415916443, "sibling_score": 0.5886630415916443, "answer_score": null, "sibling_qid": "MUM-2025-05-0273-Q008", "sibling_text": "difference between conventional fuel pump and me engine fuel pump", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Conventional versus ME / electronically controlled injection", "cross_family": false }, { "answer_id": "FP-OVHL-001", "score": 0.5861120820045471, "sibling_score": 0.5861120820045471, "answer_score": 0.39612833857536317, "sibling_qid": "MUM-2025-12-1227-Q004", "sibling_text": "diff btw fuel pump of me and aux engine", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Aux-engine / Bosch jerk fuel pump — overhaul, checks, boxing up", "cross_family": false } ] }, { "qid": "MUM-2026-05-3311-Q001", "text": "Current status of exams ?", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-05-3311", "tray": "new", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.6320502161979675, "sibling_score": 0.6320502161979675, "answer_score": null, "sibling_qid": "CHE-2026-01-0101-Q001", "sibling_text": "types of ship done and exam status", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.6275123953819275, "sibling_score": 0.6275123953819275, "answer_score": null, "sibling_qid": "MUM-2026-01-1252-Q001", "sibling_text": "status of results oral written exam", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": true }, { "answer_id": "EEXI-006", "score": 0.5654346346855164, "sibling_score": 0.5654346346855164, "answer_score": 0.31291543841361996, "sibling_qid": "KOC-2023-05-0184-Q006", "sibling_text": "current status of eexi", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is the current status of EEXI, and explain the “EEXI rating” as the latest Annex VI amendment", "cross_family": true } ] }, { "qid": "MUM-2026-05-3311-Q004", "text": "Challenging water in BWTS ?", "family": "Bilge & Ballast Systems", "subtopic": "", "tid": "MUM-2026-05-3311", "tray": "new", "candidates": [ { "answer_id": "FWG-RO-003", "score": 0.46668437123298645, "sibling_score": 0.46668437123298645, "answer_score": null, "sibling_qid": "MUM-2022-08-2138-Q006", "sibling_text": "fwg not producing enough water what to do", "sibling_family": "Fresh Water & Domestic Systems", "via": "sibling", "answer_title": "The FWG is not producing enough water or its efficiency has dropped. Reasons, checks and action?", "cross_family": true }, { "answer_id": "WIDAS-SMK-002", "score": 0.4359642267227173, "sibling_score": 0.4359642267227173, "answer_score": null, "sibling_qid": "KOC-2025-10-0670-Q027", "sibling_text": "widas how water entering into hold", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "WIDAS purpose and the three protected spaces", "cross_family": true }, { "answer_id": "JCW-SYS-004", "score": 0.4343414902687073, "sibling_score": 0.4343414902687073, "answer_score": null, "sibling_qid": "KOL-2017-10-1328-Q004", "sibling_text": "jacket water treatment why done", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Why jacket water is treated - chemicals used, what Rocor NB stands for, the nitrite level maintained, and removing scale", "cross_family": true } ] }, { "qid": "MUM-2026-05-3311-Q007", "text": "Type of ship ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-05-3311", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8361091613769531, "sibling_score": 0.8361091613769531, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8013883233070374, "sibling_score": 0.8013883233070374, "answer_score": 0.5470469176769256, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8000956177711487, "sibling_score": 0.8000956177711487, "answer_score": 0.5211817562580109, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2026-05-3313-Q003", "text": "CSR and forms ?", "family": "Surveys - Statutory", "subtopic": "CSR / Continuous Synopsis Record", "tid": "MUM-2026-05-3313", "tray": "review", "candidates": [ { "answer_id": "CERT-LIST-P01-001", "score": 0.6687058210372925, "sibling_score": 0.6687058210372925, "answer_score": null, "sibling_qid": "KOL-2026-01-1159-Q006", "sibling_text": "csr and its forms", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "List the statutory certificates carried onboard a ship.", "cross_family": false }, { "answer_id": "CSR-585-001", "score": 0.532677412033081, "sibling_score": 0.532677412033081, "answer_score": null, "sibling_qid": "KOC-2025-11-0718-Q006", "sibling_text": "what is csr", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the Continuous Synopsis Record (CSR)? Explain its purpose and requirements.", "cross_family": false }, { "answer_id": "PSC-RO-P02-007", "score": 0.46209079027175903, "sibling_score": 0.46209079027175903, "answer_score": 0.2855533093214035, "sibling_qid": "KOC-2025-08-0650-Q009", "sibling_text": "psc form a and form b", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What are PSC Form A and Form B?", "cross_family": false } ] }, { "qid": "MUM-2026-05-3313-Q005", "text": "safety and security conflict ?", "family": "Risk & Safety Management", "subtopic": "Safety vs Security", "tid": "MUM-2026-05-3313", "tray": "review", "candidates": [ { "answer_id": "MR-DS-PV-B-003", "score": 0.6758937239646912, "sibling_score": 0.6758937239646912, "answer_score": null, "sibling_qid": "MUM-2026-07-3681-Q004", "sibling_text": "safety vs security", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "3. Alarms, trips, valves, and abnormal conditions of the deck seal", "cross_family": false }, { "answer_id": "TNK-SAFE-BF26-003", "score": 0.5579407811164856, "sibling_score": 0.5579407811164856, "answer_score": null, "sibling_qid": "MUM-2026-04-0883-Q002", "sibling_text": "safeties onboard", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "What safeties, including electrical safeties and Ex ratings, are provided on the deck of a tanker?", "cross_family": false }, { "answer_id": "SHAFT-GEN-005", "score": 0.5523031949996948, "sibling_score": 0.5523031949996948, "answer_score": null, "sibling_qid": "KOC-2022-12-0121-Q007", "sibling_text": "sg safety", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Safeties provided for a shaft generator", "cross_family": true } ] }, { "qid": "MUM-2026-05-3313-Q007", "text": "Merchant shipping act ?", "family": "Surveys - Statutory", "subtopic": "Flag State", "tid": "MUM-2026-05-3313", "tray": "new", "candidates": [ { "answer_id": "CERT-LIST-P02-003", "score": 0.5759478211402893, "sibling_score": 0.5759478211402893, "answer_score": null, "sibling_qid": "KOL-2020-06-0411-Q003", "sibling_text": "sec cargo ship safety equipment cert", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Certificates that decide ship type and permitted cargo", "cross_family": false }, { "answer_id": "FLAG-ST-001", "score": 0.561220645904541, "sibling_score": 0.561220645904541, "answer_score": null, "sibling_qid": "MUM-2025-01-0236-Q006", "sibling_text": "duties of flag state and port state", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Flag State — authority, role, duties and requirements", "cross_family": false }, { "answer_id": "FLAG-ST-004", "score": 0.5593892335891724, "sibling_score": 0.5593892335891724, "answer_score": null, "sibling_qid": "KOC-2024-08-0373-Q008", "sibling_text": "flag of convenience", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Flag of convenience and ship registration", "cross_family": false } ] }, { "qid": "MUM-2026-05-3313-Q008", "text": "ISO 8217 latest amendments ?", "family": "MARPOL - General & Compliance", "subtopic": "BDN / Bunker Delivery", "tid": "MUM-2026-05-3313", "tray": "review", "candidates": [ { "answer_id": "FQCC-583-A-002", "score": 0.765993058681488, "sibling_score": 0.765993058681488, "answer_score": 0.4876998782157898, "sibling_qid": "MUM-2026-05-3304-Q004", "sibling_text": "amendment in iso 8217 2024", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "ISO 8217 — the standard, and what changed from 2017 to 2024", "cross_family": false }, { "answer_id": "NBAB-574-002", "score": 0.6543753743171692, "sibling_score": 0.6543753743171692, "answer_score": null, "sibling_qid": "KOL-2022-05-4009-Q011", "sibling_text": "iso 8217 2017 ammendment in fuel oil", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Bunker analysis suggests used or burnt lubricating oil — which parameters and tests identify it?", "cross_family": false }, { "answer_id": "BDN-001-004", "score": 0.593786358833313, "sibling_score": 0.593786358833313, "answer_score": null, "sibling_qid": "CHE-2026-02-0118-Q008", "sibling_text": "iso 8217", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Fuel spec on the BDN — sulphur, ISO 8217, % m/m, ppm", "cross_family": false } ] }, { "qid": "MUM-2026-05-3314-Q001", "text": "Heard about term GFI Where is it and full complete details?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "GFI / Global Fuel Intensity", "tid": "MUM-2026-05-3314", "tray": "new", "candidates": [ { "answer_id": "GFI-572-001", "score": 0.6477268934249878, "sibling_score": 0.6477268934249878, "answer_score": 0.31416597664356233, "sibling_qid": "MUM-2025-06-0328-Q001", "sibling_text": "heard about term gfi where is it and full complete details", "sibling_family": "", "via": "sibling", "answer_title": "What is GFI (Greenhouse Gas Fuel Intensity) under MARPOL Annex VI?", "cross_family": false }, { "answer_id": "GFI-572-002", "score": 0.5409359335899353, "sibling_score": 0.5409359335899353, "answer_score": null, "sibling_qid": "MUM-2026-02-0761-Q003", "sibling_text": "gfi significance year", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Significance of GFI and its implementation / entry-into-force year", "cross_family": false }, { "answer_id": "GFI-572-003", "score": 0.49195706844329834, "sibling_score": 0.49195706844329834, "answer_score": 0.266228711605072, "sibling_qid": "KOL-2026-02-1166-Q007", "sibling_text": "relation between cii and gfi", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Relation between CII and GFI", "cross_family": false } ] }, { "qid": "MUM-2026-05-3314-Q005", "text": "What is safety and what is security?", "family": "Risk & Safety Management", "subtopic": "Safety vs Security", "tid": "MUM-2026-05-3314", "tray": "review", "candidates": [ { "answer_id": "MR-DS-PV-B-003", "score": 0.6864351630210876, "sibling_score": 0.6864351630210876, "answer_score": null, "sibling_qid": "MUM-2026-07-3681-Q004", "sibling_text": "safety vs security", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "3. Alarms, trips, valves, and abnormal conditions of the deck seal", "cross_family": false }, { "answer_id": "TNK-SAFE-BF26-003", "score": 0.5587676167488098, "sibling_score": 0.5587676167488098, "answer_score": null, "sibling_qid": "MUM-2026-04-0883-Q002", "sibling_text": "safeties onboard", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "What safeties, including electrical safeties and Ex ratings, are provided on the deck of a tanker?", "cross_family": false }, { "answer_id": "CO2-SYS-005", "score": 0.5507354736328125, "sibling_score": 0.5507354736328125, "answer_score": null, "sibling_qid": "MUM-2023-06-0104-Q016", "sibling_text": "safeties of system", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 system safeties, CO2-room requirements, alarms and ventilation", "cross_family": true } ] }, { "qid": "MUM-2026-05-3315-Q001", "text": "Type of ship ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-05-3315", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8361091017723083, "sibling_score": 0.8361091017723083, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8013882637023926, "sibling_score": 0.8013882637023926, "answer_score": 0.5470469176769256, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8000955581665039, "sibling_score": 0.8000955581665039, "answer_score": 0.5211816549301147, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2026-05-3315-Q006", "text": "⁠NC / Major NC ?", "family": "ISM Code", "subtopic": "Major / Minor NC", "tid": "MUM-2026-05-3315", "tray": "review", "candidates": [ { "answer_id": "ISMNC-003", "score": 0.8205646872520447, "sibling_score": 0.8205646872520447, "answer_score": 0.2818906605243683, "sibling_qid": "MUM-2025-11-0553-Q006", "sibling_text": "nc major nc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Differentiate between a major non-conformity and a non-conformity under the ISM Code.", "cross_family": false }, { "answer_id": "ISMNC-002", "score": 0.8186232447624207, "sibling_score": 0.8186232447624207, "answer_score": null, "sibling_qid": "MUM-2026-02-0732-Q004", "sibling_text": "major nc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a major non-conformity under the ISM Code? Give the definition and name some.", "cross_family": false }, { "answer_id": "ISMNC-001", "score": 0.6225660443305969, "sibling_score": 0.6225660443305969, "answer_score": null, "sibling_qid": "MUM-2023-03-0091-Q008", "sibling_text": "define nc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a non-conformity under the ISM Code? Give the definition.", "cross_family": false } ] }, { "qid": "MUM-2026-05-3316-Q001", "text": "What is protocol for giving oral online exam define and explain ?", "family": "", "subtopic": "", "tid": "MUM-2026-05-3316", "tray": "new", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.4414075016975403, "sibling_score": 0.4414075016975403, "answer_score": null, "sibling_qid": "MUM-2026-01-1252-Q001", "sibling_text": "status of results oral written exam", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": false }, { "answer_id": "IMO-CODES-P02-001", "score": 0.40755361318588257, "sibling_score": 0.40755361318588257, "answer_score": null, "sibling_qid": "KOL-2024-11-0882-Q001", "sibling_text": "amendment and protocol told all the answer correctly but not accepting anything even explained with example not accepting it telling u r fail in this question", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "IMO instruments: convention, code, protocol, amendment, regulation, resolution and rule", "cross_family": false }, { "answer_id": "ISM-AUD-P02-002", "score": 0.39913129806518555, "sibling_score": 0.39913129806518555, "answer_score": null, "sibling_qid": "KOC-2024-05-2047-Q010", "sibling_text": "ism regulation 2 3 more no cross questions at all only he will reconfirm the answer", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM Code — what it is, purpose, objectives and structure", "cross_family": false } ] }, { "qid": "MUM-2026-05-3316-Q003", "text": "Short cycling reasons ?", "family": "Refrigeration & AC", "subtopic": "Capacity Control / Short Cycling", "tid": "MUM-2026-05-3316", "tray": "review", "candidates": [ { "answer_id": "CCSC-314-001", "score": 0.8348373770713806, "sibling_score": 0.8348373770713806, "answer_score": 0.411224852502346, "sibling_qid": "MUM-2026-07-3841-Q003", "sibling_text": "short cycling reasons", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Refrigeration compressor short cycling — meaning, causes and corrective action", "cross_family": false }, { "answer_id": "HYDRO-003", "score": 0.39370224475860593, "sibling_score": null, "answer_score": 0.39370224475860593, "sibling_qid": "", "sibling_text": "the hydrophore pump is cutting in and out frequently what is the reason prime cause lost air cushion waterlogged tank air dissolves into the water over time and must be replenished physics air is the compressible energy store little air tiny accumulator volume rapid pressure swing short cycling", "sibling_family": "", "via": "answer_title", "answer_title": "The hydrophore pump is cutting in and out frequently — what is the reason?", "cross_family": false }, { "answer_id": "MNS-004", "score": 0.3915818065404892, "sibling_score": null, "answer_score": 0.3915818065404892, "sibling_qid": "", "sibling_text": "motor starts and then stops again and again frequent start stop cycling on a gangway motor it started so supply fuses and main path are broadly sound that narrows the tree immediately overload relay cutting in on each start and self resetting on cooling is the classic cycling cause", "sibling_family": "", "via": "answer_title", "answer_title": "Motor starts and then stops, again and again — frequent start/stop cycling on a gangway motor", "cross_family": false } ] }, { "qid": "MUM-2026-05-3316-Q004", "text": "ESP for bulk and tankers ?", "family": "SOLAS - General (HOLD)", "subtopic": "Solas Chapter 12 - Bulk", "tid": "MUM-2026-05-3316", "tray": "review", "candidates": [ { "answer_id": "ESP-A-001", "score": 0.6852070093154907, "sibling_score": 0.6852070093154907, "answer_score": null, "sibling_qid": "MUM-2026-05-3148-Q001", "sibling_text": "what is esp in bulk carrier", "sibling_family": "SOLAS - General (HOLD)", "via": "sibling", "answer_title": "What is the Enhanced Survey Programme (ESP), and what is its purpose?", "cross_family": false }, { "answer_id": "BC-IMSBC-002", "score": 0.676558256149292, "sibling_score": 0.676558256149292, "answer_score": null, "sibling_qid": "MUM-2026-06-3384-Q002", "sibling_text": "offshore and bulk carrier", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "2. Bulk carrier construction and structural design", "cross_family": true }, { "answer_id": "SOLAS-XII-BC-002", "score": 0.6707775592803955, "sibling_score": 0.6707775592803955, "answer_score": null, "sibling_qid": "MUM-2026-08-3855-Q001", "sibling_text": "solas requirements for bulk carrier", "sibling_family": "SOLAS - General (HOLD)", "via": "sibling", "answer_title": "Explain SOLAS Chapter XII — the additional safety measures for bulk carriers", "cross_family": false } ] }, { "qid": "MUM-2026-05-3316-Q005", "text": "How to increase the efficiency of rudder ?", "family": "Shafting, Propeller & Rudder", "subtopic": "Stern Tube / Shafting / Propeller / Rudder", "tid": "MUM-2026-05-3316", "tray": "review", "candidates": [ { "answer_id": "SPR-STERN-001", "score": 0.7506710290908813, "sibling_score": 0.7506710290908813, "answer_score": null, "sibling_qid": "MUM-2026-07-3841-Q005", "sibling_text": "how to increase the efficiency of rudder", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Propeller design factors, efficiency, handedness & material", "cross_family": false }, { "answer_id": "RES-PROP-P03-002", "score": 0.7453517317771912, "sibling_score": 0.7453517317771912, "answer_score": null, "sibling_qid": "MUM-2026-06-3564-Q004", "sibling_text": "rudder efficiency how to improve", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "2. Propulsive coefficients: QPC, hull/propeller/relative-rotative efficiency, wake, slip and propeller curves", "cross_family": false }, { "answer_id": "SPR-STERN-007", "score": 0.5653658509254456, "sibling_score": 0.5653658509254456, "answer_score": 0.40818922072649, "sibling_qid": "KOL-2016-08-0010-Q002", "sibling_text": "what is the regulation for rudder area how such a small rudder is able to turn big ship", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Rudder types, area, construction, load support & turning", "cross_family": false } ] }, { "qid": "MUM-2026-05-3318-Q001", "text": "status of written and oral ?", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-05-3318", "tray": "review", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.7111237049102783, "sibling_score": 0.7111237049102783, "answer_score": null, "sibling_qid": "MUM-2026-05-3187-Q001", "sibling_text": "status of other orals and written", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": true }, { "answer_id": "EXHV-P01-001", "score": 0.5969938635826111, "sibling_score": 0.5969938635826111, "answer_score": null, "sibling_qid": "MUM-2026-05-2995-Q001", "sibling_text": "written and oral status type of ship and company", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.4785453677177429, "sibling_score": 0.4785453677177429, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q001", "sibling_text": "type of vessel engine make written and oral status", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "MUM-2026-05-3318-Q002", "text": "type of engine ?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-05-3318", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.7998000979423523, "sibling_score": 0.7998000979423523, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.7921890616416931, "sibling_score": 0.7921890616416931, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-001", "score": 0.45207613110542294, "sibling_score": null, "answer_score": 0.45207613110542294, "sibling_qid": "", "sibling_text": "1 turbocharger type main engine vs generator engine compressor is centrifugal in both cases only the turbine type differs large slow speed main engine axial flow turbine single stage constant pressure system", "sibling_family": "", "via": "answer_title", "answer_title": "1. Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "MUM-2026-05-3318-Q005", "text": "ref and ac why diff pressure ?", "family": "Refrigeration & AC", "subtopic": "HP / LP Trip", "tid": "MUM-2026-05-3318", "tray": "review", "candidates": [ { "answer_id": "CAP-CTRL-003", "score": 0.7088384628295898, "sibling_score": 0.7088384628295898, "answer_score": 0.4603736698627472, "sibling_qid": "MUM-2026-05-3259-Q009", "sibling_text": "ref and ac compressor why discharge press is different", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "CG-003 · AC-compressor vs refrigeration-compressor unloaders — the real difference", "cross_family": false }, { "answer_id": "REF-CYC-001", "score": 0.6073387265205383, "sibling_score": 0.6073387265205383, "answer_score": null, "sibling_qid": "KOC-2026-05-0046-Q006", "sibling_text": "ref flow of refrigerant to compressor location where it enters ref compressor and air compressor difference", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "1. The vapour-compression refrigeration cycle and refrigerant flow", "cross_family": false }, { "answer_id": "REEF-COMP-008", "score": 0.5768272876739502, "sibling_score": 0.5768272876739502, "answer_score": null, "sibling_qid": "KOL-2017-12-3109-Q003", "sibling_text": "refer suction press garage and compressor suc press gauge difference", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Valves, clearances, oil carry-over, refrigerant-in-oil, frosting, tandem valves, cooling — fault checks", "cross_family": false } ] }, { "qid": "MUM-2026-05-3318-Q006", "text": "which has more capacity ?", "family": "Refrigeration & AC", "subtopic": "HP / LP Trip", "tid": "MUM-2026-05-3318", "tray": "new", "candidates": [ { "answer_id": "AC-VE-004", "score": 0.6309723854064941, "sibling_score": 0.6309723854064941, "answer_score": null, "sibling_qid": "KOL-2017-01-1269-Q002", "sibling_text": "capacity of comp", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "How do you determine main-air-compressor capacity or free-air delivery, and the units/conditions?", "cross_family": true }, { "answer_id": "bdc-p05-01", "score": 0.6293284893035889, "sibling_score": 0.6293284893035889, "answer_score": null, "sibling_qid": "MUM-2025-10-1707-Q005", "sibling_text": "capacity", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "CQ-BDC-022 Emergency battery on your ship — purpose, type, arrangement and rating Medium", "cross_family": true }, { "answer_id": "CCSC-314-002", "score": 0.6028133034706116, "sibling_score": 0.6028133034706116, "answer_score": null, "sibling_qid": "MUM-2024-12-2783-Q010", "sibling_text": "capacity controller working", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Compressor capacity control and the capacity controller", "cross_family": false } ] }, { "qid": "MUM-2026-05-3319-Q004", "text": "bow thruster seal renewal procedure ?", "family": "Auxiliary Equipment", "subtopic": "Bow Thruster", "tid": "MUM-2026-05-3319", "tray": "review", "candidates": [ { "answer_id": "STERN-P03-002", "score": 0.6850668787956238, "sibling_score": 0.6850668787956238, "answer_score": 0.5196087419986725, "sibling_qid": "MUM-2026-03-2663-Q002", "sibling_text": "stern tube seal renewal in place", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Stern-tube seals: arrangement, air/lip seals, renewal/replacement and the vulcanized split-seal fitting method", "cross_family": true }, { "answer_id": "WIND-WNCH-010", "score": 0.6547078490257263, "sibling_score": 0.6547078490257263, "answer_score": null, "sibling_qid": "MUM-2026-09-3904-Q006", "sibling_text": "winch hydraulic pump seal renewal procedure", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Survey prep, checks, routines and maintenance", "cross_family": false }, { "answer_id": "STERN-TUBE-P04-002", "score": 0.6196581721305847, "sibling_score": 0.6196581721305847, "answer_score": null, "sibling_qid": "KOC-2026-08-2163-Q014", "sibling_text": "in drydock you have replaced stern tube seals now do the stern tube integrity test", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Stern tube and seal integrity tests after survey and while underway", "cross_family": true } ] }, { "qid": "MUM-2026-05-3320-Q001", "text": "cft of mat ?", "family": "Electrical - Motors & Starters", "subtopic": "Motor Specification / Ordering", "tid": "MUM-2026-05-3320", "tray": "new", "candidates": [ { "answer_id": "CERT-LIST-P01-001", "score": 0.3709137737751007, "sibling_score": 0.3709137737751007, "answer_score": null, "sibling_qid": "KOL-2021-02-0468-Q005", "sibling_text": "statutory ctf", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "List the statutory certificates carried onboard a ship.", "cross_family": true }, { "answer_id": "FPC-003", "score": 0.3268589973449707, "sibling_score": 0.3268589973449707, "answer_score": null, "sibling_qid": "MUM-2026-06-3549-Q004", "sibling_text": "cfpp", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Cold filter plugging point (CFPP) and cold-flow properties", "cross_family": true }, { "answer_id": "MCC-MEB-P01-001", "score": 0.3135373294353485, "sibling_score": 0.3135373294353485, "answer_score": null, "sibling_qid": "CHE-2026-05-0555-Q003", "sibling_text": "mc c what is c what upgrades from mc", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "MC-C (\"Compact\") engine — design and the main constructional differences from MC", "cross_family": true } ] }, { "qid": "MUM-2026-05-3320-Q002", "text": "breaker not close ?", "family": "Cargo Ops - Tankers", "subtopic": "Mast Riser / Deck Seal / P/V Valve", "tid": "MUM-2026-05-3320", "tray": "new", "candidates": [ { "answer_id": "MAST-PVA-002", "score": 0.6345267295837402, "sibling_score": 0.6345267295837402, "answer_score": null, "sibling_qid": "KOC-2024-10-0443-Q004", "sibling_text": "pv breaker function", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "P/V valve vs P/V breaker — function, location and difference", "cross_family": false }, { "answer_id": "CBR-ARC-G-002", "score": 0.603700578212738, "sibling_score": 0.603700578212738, "answer_score": null, "sibling_qid": "CHE-2026-05-0603-Q013", "sibling_text": "breaker components", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "ACB construction, contacts, arc chutes, auxiliaries and VCB parts", "cross_family": false }, { "answer_id": "MAST-PVA-003", "score": 0.5770251154899597, "sibling_score": 0.5770251154899597, "answer_score": null, "sibling_qid": "KOC-2022-12-0114-Q005", "sibling_text": "draw pv breaker", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "P/V breaker — construction and working principle", "cross_family": false } ] }, { "qid": "MUM-2026-05-3321-Q004", "text": "what all safeties in transformer and its safeties?", "family": "Workshop & Welding", "subtopic": "Plasma / Arc / TIG / MIG", "tid": "MUM-2026-05-3321", "tray": "review", "candidates": [ { "answer_id": "WELD-PATM-009", "score": 0.6706700921058655, "sibling_score": 0.6706700921058655, "answer_score": 0.3890335112810135, "sibling_qid": "MUM-2026-05-3321-Q008", "sibling_text": "welding transformer what are all safeties", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding machine / transformer – specification and safety", "cross_family": false }, { "answer_id": "HV-SYS-P04-001", "score": 0.56244957447052, "sibling_score": 0.56244957447052, "answer_score": null, "sibling_qid": "KOL-2025-06-1981-Q002", "sibling_text": "all safeties in high voltage", "sibling_family": "", "via": "sibling", "answer_title": "HV-SYS-P04-001 - HV hazards, advantages and safeties", "cross_family": false }, { "answer_id": "XFMR-A-002", "score": 0.521896481513977, "sibling_score": 0.521896481513977, "answer_score": 0.4496924430131912, "sibling_qid": "MUM-2022-07-1329-Q001", "sibling_text": "transformer maintenance and safeties", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Transformer maintenance, checks and safeties", "cross_family": true } ] }, { "qid": "MUM-2026-05-3321-Q005", "text": "low insulation alarm comes for refer compressor what is the reason.?", "family": "Refrigeration & AC", "subtopic": "HP / LP Trip", "tid": "MUM-2026-05-3321", "tray": "review", "candidates": [ { "answer_id": "IR-TEST-B-011", "score": 0.7349241971969604, "sibling_score": 0.7349241971969604, "answer_score": null, "sibling_qid": "MUM-2022-10-1362-Q002", "sibling_text": "insulation low value coming from fridge compressor but thats not from motor what else could be reason then", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Diagnosing a low IR reading — localising the fault; LV earth-fault monitoring", "cross_family": true }, { "answer_id": "REEF-COMP-004", "score": 0.7050707936286926, "sibling_score": 0.7050707936286926, "answer_score": null, "sibling_qid": "KOL-2024-10-3715-Q001", "sibling_text": "reefer compressor lo charging i said i have read about it but i am not able to recall at the moment", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Charging, replenishing and draining compressor lube oil — including with no charging pump", "cross_family": false }, { "answer_id": "CCSC-314-001", "score": 0.7005583047866821, "sibling_score": 0.7005583047866821, "answer_score": null, "sibling_qid": "MUM-2025-11-1220-Q002", "sibling_text": "refer compressor short cycling reasons undercharge and all reasons", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Refrigeration compressor short cycling — meaning, causes and corrective action", "cross_family": false } ] }, { "qid": "MUM-2026-05-3322-Q001", "text": "See beck effect ?", "family": "Electrical - Motors & Starters", "subtopic": "Rotor / Stator", "tid": "MUM-2026-05-3322", "tray": "new", "candidates": [ { "answer_id": "IM-GW-C-001", "score": 0.5003041625022888, "sibling_score": 0.5003041625022888, "answer_score": null, "sibling_qid": "KOC-2024-10-1414-Q004", "sibling_text": "explain crawling effect", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Cogging, crawling and harmonic effects in induction motors", "cross_family": false }, { "answer_id": "SQUAT-564-001", "score": 0.4892638027667999, "sibling_score": 0.4892638027667999, "answer_score": null, "sibling_qid": "KOL-2016-11-0019-Q005", "sibling_text": "squat effect", "sibling_family": "", "via": "sibling", "answer_title": "Squat effect — the principle and the factors that drive it", "cross_family": false }, { "answer_id": "SPHS-B-002", "score": 0.4711172878742218, "sibling_score": 0.4711172878742218, "answer_score": null, "sibling_qid": "KOC-2025-08-1562-Q007", "sibling_text": "single phasing effect", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What happens to a motor during single phasing — and what happens to the RPM?", "cross_family": false } ] }, { "qid": "MUM-2026-05-3322-Q010", "text": "Themo semiconductor device example in engine room ?", "family": "Boilers - Construction & Components", "subtopic": "Boiler Tubes", "tid": "MUM-2026-05-3322", "tray": "new", "candidates": [ { "answer_id": "TPL-SENS-A-003", "score": 0.6445261240005493, "sibling_score": 0.6445261240005493, "answer_score": 0.46933541297912595, "sibling_qid": "KOL-2018-11-2241-Q006", "sibling_text": "thermocouple how emf generated where fitted in engine room", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Thermocouple principle, Seebeck effect and exhaust-temperature sensing", "cross_family": true }, { "answer_id": "SCR-306-B-001", "score": 0.5987151861190796, "sibling_score": 0.5987151861190796, "answer_score": null, "sibling_qid": "KOC-2024-12-1446-Q004", "sibling_text": "thyristor thermocouple", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Thyristor / SCR vs other semiconductor devices", "cross_family": true }, { "answer_id": "SPHS-B-015", "score": 0.5858264565467834, "sibling_score": 0.5858264565467834, "answer_score": null, "sibling_qid": "KOL-2019-02-2262-Q004", "sibling_text": "motor safeties thermistor", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Thermistors — how do they avoid single phasing, and what is the working principle?", "cross_family": true } ] }, { "qid": "MUM-2026-05-3323-Q001", "text": "Type of vessel ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-05-3323", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8510597348213196, "sibling_score": 0.8510597348213196, "answer_score": null, "sibling_qid": "MUM-2026-06-3384-Q001", "sibling_text": "type of vessel", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.7775062918663025, "sibling_score": 0.7775062918663025, "answer_score": null, "sibling_qid": "CHE-2026-02-0481-Q001", "sibling_text": "type of vessels sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7704722881317139, "sibling_score": 0.7704722881317139, "answer_score": 0.5232889711856842, "sibling_qid": "CHE-2026-02-0109-Q001", "sibling_text": "type of ship explain what type is your vessel explain their type and difference", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "MUM-2026-05-3323-Q002", "text": "⁠Type of ME and AE?", "family": "Heat Exchangers & Coolers", "subtopic": "JCW System", "tid": "MUM-2026-05-3323", "tray": "new", "candidates": [ { "answer_id": "AEME-DIFF-001", "score": 0.6246595978736877, "sibling_score": 0.6246595978736877, "answer_score": null, "sibling_qid": "MUM-2025-05-2295-Q004", "sibling_text": "types of me and ae worked on", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": true }, { "answer_id": "ENG-NOM-001", "score": 0.5573199987411499, "sibling_score": 0.5573199987411499, "answer_score": 0.27496051639318464, "sibling_qid": "NOI-2026-09-0008-Q002", "sibling_text": "me and ae type and nomenclature", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Nomenclature of ME and AE (asked together)", "cross_family": true }, { "answer_id": "ENG-NOM-005", "score": 0.48527610301971436, "sibling_score": 0.48527610301971436, "answer_score": null, "sibling_qid": "MUM-2026-09-3915-Q001", "sibling_text": "type of engine me and ae", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "MUM-2026-05-3323-Q010", "text": "How to Know V- belt is damaged and can’t use anymore ?", "family": "Fault Diagnosis & 2/E Actions", "subtopic": "Fault Diagnosis / 2E Action", "tid": "MUM-2026-05-3323", "tray": "new", "candidates": [ { "answer_id": "CHAIN-TENS-B-006", "score": 0.5265759229660034, "sibling_score": 0.5265759229660034, "answer_score": null, "sibling_qid": "KOL-2020-03-3336-Q005", "sibling_text": "main engine chain drive damage from where u will check tell exact indication position", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Lubrication, material, failure, noise and troubleshooting", "cross_family": true }, { "answer_id": "REEF-COMP-005", "score": 0.5208876132965088, "sibling_score": 0.5208876132965088, "answer_score": 0.45903117656707765, "sibling_qid": "KOL-2021-02-3375-Q007", "sibling_text": "why v belt is used how many usually fitted what specifications are on that name it and explain", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "V-belt drive on reefer compressors — why, and checking condition, alignment, tension, replacement", "cross_family": true }, { "answer_id": "CCH-590-003", "score": 0.49533939361572266, "sibling_score": 0.49533939361572266, "answer_score": null, "sibling_qid": "KOL-2024-11-3726-Q003", "sibling_text": "jacket cracked indication action tell only first indication too much crossed in this about exhaust valve fuel pump lube oil and starting air many things", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "A cylinder head or its cooling jacket is cracked. What is the first indication, what is your action, and how do you make port?", "cross_family": true } ] }, { "qid": "MUM-2026-05-3324-Q007", "text": "All information mentioned on motor plate", "family": "Electrical - Motors & Starters", "subtopic": "Motor Specification / Ordering", "tid": "MUM-2026-05-3324", "tray": "review", "candidates": [ { "answer_id": "IP-ENCL-001", "score": 0.8618161082267761, "sibling_score": 0.8618161082267761, "answer_score": null, "sibling_qid": "MUM-2026-05-3292-Q007", "sibling_text": "all information mentioned on motor plate", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "IP rating of motors — what the numbers mean", "cross_family": false }, { "answer_id": "ELECTRICAL-M-A-01", "score": 0.6920299530029297, "sibling_score": 0.6920299530029297, "answer_score": 0.5464996457099914, "sibling_qid": "MUM-2026-02-1969-Q010", "sibling_text": "on the name plate of motor what is meant by frame number", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Motor Frame Number", "cross_family": false }, { "answer_id": "IM-GEN-B-002", "score": 0.6396111845970154, "sibling_score": 0.6396111845970154, "answer_score": null, "sibling_qid": "KOC-2024-11-0458-Q010", "sibling_text": "types of motors on board", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motors onboard and types of induction motors", "cross_family": false } ] }, { "qid": "MUM-2026-05-3324-Q010", "text": "Hazardous zones", "family": "Cargo Ops - Tankers", "subtopic": "IG System", "tid": "MUM-2026-05-3324", "tray": "new", "candidates": [ { "answer_id": "TCM-374-005", "score": 0.6116361618041992, "sibling_score": 0.6116361618041992, "answer_score": null, "sibling_qid": "KOC-2026-02-0826-Q020", "sibling_text": "hazard zone in chemical tanker", "sibling_family": "Chemical Tankers", "via": "sibling", "answer_title": "Gas-freeing a tanker after discharge or before dry dock (why through the IG system)", "cross_family": true }, { "answer_id": "FLD-601-002", "score": 0.5979208946228027, "sibling_score": 0.5979208946228027, "answer_score": null, "sibling_qid": "MUM-2026-05-3085-Q007", "sibling_text": "what is flammability zone", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What is the flammable range and the flammability zone? What happens inside a cargo tank below 1% LEL?", "cross_family": false }, { "answer_id": "RA-MGMT-A-001", "score": 0.5707824230194092, "sibling_score": 0.5707824230194092, "answer_score": null, "sibling_qid": "KOL-2020-08-3344-Q006", "sibling_text": "hazards definition parts of it", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "What is risk, what is hazard, and what is risk assessment?", "cross_family": true } ] }, { "qid": "MUM-2026-05-3325-Q004", "text": "AE losing 30 Litres oil, you suspect cooler leaking, how will you find which tube leaking ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "LO Cooler", "tid": "MUM-2026-05-3325", "tray": "review", "candidates": [ { "answer_id": "LO-CLR-001", "score": 0.7509284019470215, "sibling_score": 0.7509284019470215, "answer_score": 0.6206898033618927, "sibling_qid": "KOL-2023-08-3629-Q001", "sibling_text": "lo cooler tube leaking how to find", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you detect a leaking AE / DG lube-oil cooler, and locate the tube?", "cross_family": false }, { "answer_id": "STHX-002", "score": 0.7098889946937561, "sibling_score": 0.7098889946937561, "answer_score": null, "sibling_qid": "MUM-2026-06-3460-Q005", "sibling_text": "generator lube oil cooler tube is leaking how to check which tube is leaking", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "STHX-02 — Leak detection, indications and isolation", "cross_family": true }, { "answer_id": "ACJCW-006", "score": 0.6743561029434204, "sibling_score": 0.6743561029434204, "answer_score": 0.5290253460407257, "sibling_qid": "KOL-2018-03-3131-Q002", "sibling_text": "main engine air cooler leaks how to find out defective tube", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Action on an air-cooler tube leak; removing or plugging leaking tubes", "cross_family": true } ] }, { "qid": "MUM-2026-05-3326-Q001", "text": "Type of ship?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-05-3326", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8361091017723083, "sibling_score": 0.8361091017723083, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8013883233070374, "sibling_score": 0.8013883233070374, "answer_score": 0.5470469176769256, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8000956177711487, "sibling_score": 0.8000956177711487, "answer_score": 0.5211817562580109, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2026-05-3326-Q005", "text": "Chain locker inspection, what all checks ?", "family": "Auxiliary Equipment", "subtopic": "Chain Locker Entry", "tid": "MUM-2026-05-3326", "tray": "review", "candidates": [ { "answer_id": "CHAIN-TENS-A-004", "score": 0.7781694531440735, "sibling_score": 0.7781694531440735, "answer_score": 0.4771557480096817, "sibling_qid": "MUM-2026-07-3842-Q005", "sibling_text": "chain locker inspection what all checks", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Chain-Case / Chain-Drive Inspection", "cross_family": false }, { "answer_id": "ANCHR-B-002", "score": 0.6512467861175537, "sibling_score": 0.6512467861175537, "answer_score": null, "sibling_qid": "KOL-2025-07-3836-Q004", "sibling_text": "anchor chain what all checks carried out", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Anchor & cable survey in dry dock — the systematic inspection", "cross_family": false }, { "answer_id": "ANCHR-B-004", "score": 0.6187607049942017, "sibling_score": 0.6187607049942017, "answer_score": null, "sibling_qid": "KOC-2026-04-0906-Q008", "sibling_text": "regulations regarding chain locker", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Chain locker, spurling pipe & bitter-end securing", "cross_family": false } ] }, { "qid": "MUM-2026-05-3327-Q002", "text": "Cross section of AE con rod, why?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Connecting Rod & Bolts", "tid": "MUM-2026-05-3327", "tray": "new", "candidates": [ { "answer_id": "AEME-DIFF-001", "score": 0.6078184843063354, "sibling_score": 0.6078184843063354, "answer_score": null, "sibling_qid": "MUM-2024-08-1089-Q004", "sibling_text": "cross sectional difference between me and ae con rods", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": true }, { "answer_id": "AE-CRP-006", "score": 0.5992387533187866, "sibling_score": 0.5992387533187866, "answer_score": 0.4158371716737747, "sibling_qid": "MUM-2026-05-3185-Q006", "sibling_text": "cross section of conrod in ae why not circular", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE connecting-rod design — section, serrations, oblique cut, whip loading", "cross_family": true }, { "answer_id": "CRB-006", "score": 0.5966233611106873, "sibling_score": 0.5966233611106873, "answer_score": 0.3978300392627716, "sibling_qid": "MUM-2025-12-1237-Q004", "sibling_text": "con rod i section what is section modulus", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Why is the connecting rod made I-section (or H-section)? Explain section modulus and Young's modulus.", "cross_family": false } ] }, { "qid": "MUM-2026-05-3327-Q003", "text": "Scavange fire and you extinguished, what check and inspection you do before resuming engine operation?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Scavenging / Scavenge Fire", "tid": "MUM-2026-05-3327", "tray": "review", "candidates": [ { "answer_id": "SCAV-323-P01-005", "score": 0.7965216636657715, "sibling_score": 0.7965216636657715, "answer_score": 0.6156064867973328, "sibling_qid": "KOL-2016-07-2992-Q005", "sibling_text": "after scavenge fire all d checks before you again start engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Post-fire checks before restarting and loading", "cross_family": false }, { "answer_id": "SCAV-323-P01-003", "score": 0.7235185503959656, "sibling_score": 0.7235185503959656, "answer_score": null, "sibling_qid": "MUM-2026-06-3655-Q002", "sibling_text": "scavenge fire as 2 e eng how will u proceed what you will inspect", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "As Second Engineer — instructions to the watchkeeper", "cross_family": false }, { "answer_id": "SCAV-323-P01-001", "score": 0.6853602528572083, "sibling_score": 0.6853602528572083, "answer_score": null, "sibling_qid": "MUM-2026-01-1240-Q004", "sibling_text": "scavenge fire checks", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Scavenge fire in the main engine — your actions", "cross_family": false } ] }, { "qid": "MUM-2026-05-3327-Q004", "text": "Air compressor lead and follow switch purpose?", "family": "Air Compressor", "subtopic": "MAC / Air Compressor", "tid": "MUM-2026-05-3327", "tray": "review", "candidates": [ { "answer_id": "MAC-353-001", "score": 0.6642884016036987, "sibling_score": 0.6642884016036987, "answer_score": 0.5261880129575729, "sibling_qid": "MUM-2025-08-2348-Q005", "sibling_text": "main air compressor 2 switch main and slave why do we have that", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Main and slave switches on the main air compressors", "cross_family": false }, { "answer_id": "MAC-598-002", "score": 0.5825628638267517, "sibling_score": 0.5825628638267517, "answer_score": 0.4546780288219452, "sibling_qid": "KOC-2025-11-1641-Q001", "sibling_text": "starting circuit of compressor", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "The main air compressor circuit — power and control circuits, starting, and electrical safeties in the compressor room", "cross_family": false }, { "answer_id": "MAC-353-008", "score": 0.571991503238678, "sibling_score": 0.571991503238678, "answer_score": null, "sibling_qid": "MUM-2026-02-1257-Q004", "sibling_text": "air compressor bumping clearance how to take without opening air compressor cylinder need to take with lead ball", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Taking bumping clearance without opening the cylinder (lead-ball method)", "cross_family": false } ] }, { "qid": "MUM-2026-05-3327-Q005", "text": "IG blower couple type and name it particularly?", "family": "Cargo Ops - Gas Carriers", "subtopic": "MARVS / Tank Type 1G/2G/3G", "tid": "MUM-2026-05-3327", "tray": "review", "candidates": [ { "answer_id": "COT-P02-06", "score": 0.6517541408538818, "sibling_score": 0.6517541408538818, "answer_score": null, "sibling_qid": "KOL-2019-02-1441-Q006", "sibling_text": "ig blower n motor connected which type of coupling", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Explain the inert-gas blower arrangement, required capacity, pressure control, redundancy and safeguards.", "cross_family": true }, { "answer_id": "CPP-SGX-02", "score": 0.6204907894134521, "sibling_score": 0.6204907894134521, "answer_score": 0.40093609392642976, "sibling_qid": "MUM-2024-08-2237-Q001", "sibling_text": "blower coupling", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main-engine auxiliary blowers", "cross_family": true }, { "answer_id": "COT-P02-07", "score": 0.5651726722717285, "sibling_score": 0.5651726722717285, "answer_score": null, "sibling_qid": "MUM-2025-11-2485-Q002", "sibling_text": "maintenance carried out on ig blower", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Describe the safe washing, stopping and maintenance procedures for an inert-gas blower/fan.", "cross_family": true } ] }, { "qid": "MUM-2026-05-3328-Q007", "text": "⁠wear down of rudder carrier bearing ?", "family": "Steering Gear & Hydraulics", "subtopic": "Tiller / Rudder Stock", "tid": "MUM-2026-05-3328", "tray": "review", "candidates": [ { "answer_id": "PRE-TEN-001", "score": 0.7292604446411133, "sibling_score": 0.7292604446411133, "answer_score": null, "sibling_qid": "MUM-2026-06-3504-Q007", "sibling_text": "rudder carrier bearing removal procedure", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Pre-stressing and pre-tensioning in main-engine bolting", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.6895294785499573, "sibling_score": 0.6895294785499573, "answer_score": 0.5300223112106323, "sibling_qid": "MUM-2026-06-3610-Q003", "sibling_text": "removal of rudder bearing", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "TRS-002", "score": 0.667043924331665, "sibling_score": 0.667043924331665, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false } ] }, { "qid": "MUM-2026-05-3328-Q010", "text": "DD preparation ?", "family": "Electrical - Batteries & DC Systems", "subtopic": "Battery Testing / Load Test / SG", "tid": "MUM-2026-05-3328", "tray": "new", "candidates": [ { "answer_id": "DDHSC-004", "score": 0.5640552639961243, "sibling_score": 0.5640552639961243, "answer_score": null, "sibling_qid": "KOC-2025-12-1986-Q003", "sibling_text": "first checks after dd", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "What checks are carried out after docking, and what are the first checks once the ship is out of dock?", "cross_family": true }, { "answer_id": "dus-p6-01", "score": 0.5540722608566284, "sibling_score": 0.5540722608566284, "answer_score": null, "sibling_qid": "KOC-2024-12-1450-Q002", "sibling_text": "dd preparation with eto", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Drydock preparation with an ETO — the electrical-side workflow as 2E", "cross_family": true }, { "answer_id": "DUS-P1-02", "score": 0.549528956413269, "sibling_score": 0.549528956413269, "answer_score": 0.2749500542879105, "sibling_qid": "KOL-2021-04-3399-Q003", "sibling_text": "special tools for dd to approch", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Plans, drawings and special tools kept ready for drydock — engine-department view", "cross_family": true } ] }, { "qid": "MUM-2026-05-3329-Q001", "text": "Type of ships and main engine?", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "MUM-2026-05-3329", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P01-001", "score": 0.7922677397727966, "sibling_score": 0.7922677397727966, "answer_score": null, "sibling_qid": "MUM-2026-07-3668-Q004", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7722223401069641, "sibling_score": 0.7722223401069641, "answer_score": null, "sibling_qid": "MUM-2025-08-2357-Q001", "sibling_text": "type of ship type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "AC-VE-001", "score": 0.7078592777252197, "sibling_score": 0.7078592777252197, "answer_score": null, "sibling_qid": "MUM-2026-01-2904-Q001", "sibling_text": "what type of ship engine power and nomenclature", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Volumetric efficiency: define it, and if it drops how do you improve it (with bumping clearance)?", "cross_family": false } ] }, { "qid": "MUM-2026-05-3329-Q005", "text": "⁠Aspect Ratio ? ⁠On what two factors the alpha lubrication decides the injection quantity? And how it is sensing it?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Alpha Lubricator", "tid": "MUM-2026-05-3329", "tray": "review", "candidates": [ { "answer_id": "ALPHA-LUB-B-004", "score": 0.6869508028030396, "sibling_score": 0.6869508028030396, "answer_score": 0.4233424782752991, "sibling_qid": "KOL-2018-11-1430-Q002", "sibling_text": "alpha lubricator details some what all factors decides amount and frequency of injection", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Alpha lubricator — feed-rate, timing, quantity and SLOC/SCOC calculation", "cross_family": false }, { "answer_id": "ALPHA-LUB-B-001", "score": 0.6198328137397766, "sibling_score": 0.6198328137397766, "answer_score": 0.4295963853597641, "sibling_qid": "CHE-2025-08-0206-Q005", "sibling_text": "alpha lubrication explains how it determines the feed and controls asking it acts on by rpm or engine load", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Alpha lubricator — control, HMI, sensors, inputs/outputs and feedback", "cross_family": false }, { "answer_id": "ALPHA-LUB-B-003", "score": 0.607857346534729, "sibling_score": 0.607857346534729, "answer_score": 0.46037990152835845, "sibling_qid": "KOL-2017-11-1332-Q003", "sibling_text": "1 alpha lubricator from lo storage tank till injection how it reaches lubricator quantity time taken pressure", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Alpha lubricator — components, accumulator, solenoids and pressures", "cross_family": false } ] }, { "qid": "MUM-2026-05-3331-Q001", "text": "What company and what vessels you have sailed ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-05-3331", "tray": "review", "candidates": [ { "answer_id": "LLST-AB-002", "score": 0.7212312817573547, "sibling_score": 0.7212312817573547, "answer_score": null, "sibling_qid": "MUM-2026-05-3280-Q001", "sibling_text": "what company and what vessels you have sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.620320200920105, "sibling_score": 0.620320200920105, "answer_score": null, "sibling_qid": "CHE-2026-02-0481-Q001", "sibling_text": "type of vessels sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.6086063981056213, "sibling_score": 0.6086063981056213, "answer_score": null, "sibling_qid": "MUM-2026-05-3248-Q001", "sibling_text": "introduction sea time company pre sea ship type engine type me", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "MUM-2026-05-3333-Q001", "text": "Which Engine ?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-05-3333", "tray": "review", "candidates": [ { "answer_id": "MIP-264-003", "score": 0.732064425945282, "sibling_score": 0.732064425945282, "answer_score": null, "sibling_qid": "MUM-2026-01-1248-Q002", "sibling_text": "engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Calculate engine power: IHP and BHP, and where each is measured", "cross_family": false }, { "answer_id": "ETP-344-P03-001", "score": 0.7005857825279236, "sibling_score": 0.7005857825279236, "answer_score": null, "sibling_qid": "KOL-2026-03-2048-Q001", "sibling_text": "type of engine done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.6842483878135681, "sibling_score": 0.6842483878135681, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false } ] }, { "qid": "MUM-2026-05-3333-Q002", "text": "Cross head bearing clearances what will happen if high bearing clearance and its impact. Also cross head guide shoes clearances and impact if high clearances ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Crosshead Bearing", "tid": "MUM-2026-05-3333", "tray": "review", "candidates": [ { "answer_id": "CXH-BRG-FINAL-1-006", "score": 0.8109592199325562, "sibling_score": 0.8109592199325562, "answer_score": 0.5335680276155471, "sibling_qid": "MUM-2026-05-3282-Q002", "sibling_text": "cross head bearing clearances what will happen if high bearing clearance and its impact also cross head guide shoes clearances and impact if high clearances", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead & guide-shoe clearances: how, where, how much, piston position & why", "cross_family": false }, { "answer_id": "XHD-BRG-C-003", "score": 0.6932675242424011, "sibling_score": 0.6932675242424011, "answer_score": null, "sibling_qid": "KOL-2025-10-3867-Q002", "sibling_text": "crosshead bearing clearances crosshead clearances why", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "C. Crosshead and guide-shoe clearances: how many, how measured, piston position and why", "cross_family": false }, { "answer_id": "XHEAD-303-005", "score": 0.6803971529006958, "sibling_score": 0.6803971529006958, "answer_score": 0.5132874011993408, "sibling_qid": "MUM-2025-06-1132-Q012", "sibling_text": "significance of crosshead guide and shoe clearances", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead guide and shoe clearances: how and where taken, limits", "cross_family": false } ] }, { "qid": "MUM-2026-05-3335-Q001", "text": "What type of ship ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-05-3335", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8166288137435913, "sibling_score": 0.8166288137435913, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.7903702855110168, "sibling_score": 0.7903702855110168, "answer_score": 0.50989271402359, "sibling_qid": "MUM-2026-02-0731-Q002", "sibling_text": "what type of ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7813364863395691, "sibling_score": 0.7813364863395691, "answer_score": 0.534677568078041, "sibling_qid": "KOC-2026-09-2198-Q001", "sibling_text": "type a and b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "MUM-2026-05-3335-Q002", "text": "What type of engine ME and AE?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-05-3335", "tray": "review", "candidates": [ { "answer_id": "ENG-NOM-005", "score": 0.7172242999076843, "sibling_score": 0.7172242999076843, "answer_score": null, "sibling_qid": "MUM-2026-09-3915-Q001", "sibling_text": "type of engine me and ae", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false }, { "answer_id": "EGTP-P02-005", "score": 0.6049931645393372, "sibling_score": 0.6049931645393372, "answer_score": 0.4027528017759323, "sibling_qid": "MUM-2026-06-3500-Q002", "sibling_text": "mc vs me engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "MC / MC-C / ME-C and Electronically Controlled Engines", "cross_family": false }, { "answer_id": "MCC-MEB-P01-001", "score": 0.6018698811531067, "sibling_score": 0.6018698811531067, "answer_score": null, "sibling_qid": "MUM-2026-09-3997-Q002", "sibling_text": "type of engine worked me mcc me b and rta", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "MC-C (\"Compact\") engine — design and the main constructional differences from MC", "cross_family": false } ] }, { "qid": "MUM-2026-05-3335-Q004", "text": "At what hydraulic pressure framo cargo pump is discharging? ", "family": "Cargo Ops - Tankers", "subtopic": "Cargo Pump (Framo / Eductor)", "tid": "MUM-2026-05-3335", "tray": "review", "candidates": [ { "answer_id": "CPFE-583-001", "score": 0.6756924390792847, "sibling_score": 0.6756924390792847, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q002", "sibling_text": "framo system explanation how cargo pumps work", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "The Framo system — what it is, how it works, and the driving mechanism", "cross_family": false }, { "answer_id": "CPFE-583-007", "score": 0.6578851938247681, "sibling_score": 0.6578851938247681, "answer_score": null, "sibling_qid": "MUM-2022-09-2696-Q004", "sibling_text": "1 framo system type of pump hydraulic pressure not coming what to do", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Pressure not building — and purging the hydraulic system", "cross_family": false }, { "answer_id": "CPFE-583-005", "score": 0.6465616822242737, "sibling_score": 0.6465616822242737, "answer_score": 0.5171689689159393, "sibling_qid": "MUM-2025-08-2348-Q001", "sibling_text": "framo pump pressure before starting and pressure after starting", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Starting and stopping a Framo pump — checks, and pressure before and after starting", "cross_family": false } ] }, { "qid": "MUM-2026-05-3335-Q005", "text": "Where overspeed trip FRAMO pump is fitted? ", "family": "Cargo Ops - Tankers", "subtopic": "Cargo Pump (Framo / Eductor)", "tid": "MUM-2026-05-3335", "tray": "new", "candidates": [ { "answer_id": "CPFE-583-001", "score": 0.5573053956031799, "sibling_score": 0.5573053956031799, "answer_score": null, "sibling_qid": "KOC-2025-06-2067-Q002", "sibling_text": "which pump is used in framo", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "The Framo system — what it is, how it works, and the driving mechanism", "cross_family": false }, { "answer_id": "COPT-BF043-010", "score": 0.5469995737075806, "sibling_score": 0.5469995737075806, "answer_score": 0.44967754781246183, "sibling_qid": "MUM-2026-01-2907-Q006", "sibling_text": "copt overspeed trip testing procedure", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "10. Checking and testing the COPT overspeed trip", "cross_family": false }, { "answer_id": "CPFE-583-009", "score": 0.5266256332397461, "sibling_score": 0.5266256332397461, "answer_score": null, "sibling_qid": "MUM-2026-03-0871-Q005", "sibling_text": "framo pump speed not able control as 2e what to do", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Command given in CCR but no response — and loss of speed control", "cross_family": false } ] }, { "qid": "MUM-2026-05-3335-Q007", "text": "if hydraulic pressure is not building up what action? ", "family": "Risk & Safety Management", "subtopic": "Risk Assessment / Management", "tid": "MUM-2026-05-3335", "tray": "new", "candidates": [ { "answer_id": "HSAP-B-007", "score": 0.6236460208892822, "sibling_score": 0.6236460208892822, "answer_score": null, "sibling_qid": "MUM-2026-03-2642-Q029", "sibling_text": "swash plate pump not building pressure what actions", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Troubleshooting — swash-plate pump not building pressure", "cross_family": true }, { "answer_id": "HYD-JACK-002", "score": 0.6220062375068665, "sibling_score": 0.6220062375068665, "answer_score": 0.5069532930850983, "sibling_qid": "KOL-2026-05-0058-Q001", "sibling_text": "hydraulic jack is not building up pressure what are the causes lot s of cross question", "sibling_family": "", "via": "sibling", "answer_title": "Hydraulic jack leaks, seizes, will not reach pressure, or nut will not loosen", "cross_family": false }, { "answer_id": "CPFE-583-007", "score": 0.6195788383483887, "sibling_score": 0.6195788383483887, "answer_score": 0.5907471060752868, "sibling_qid": "MUM-2022-09-2696-Q004", "sibling_text": "1 framo system type of pump hydraulic pressure not coming what to do", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Pressure not building — and purging the hydraulic system", "cross_family": true } ] }, { "qid": "MUM-2026-05-3335-Q010", "text": "what equipment is responsible for maintaining meat room temp?", "family": "Refrigeration & AC", "subtopic": "Refrigeration Faults / Checks", "tid": "MUM-2026-05-3335", "tray": "review", "candidates": [ { "answer_id": "TEV-TXV-008", "score": 0.7244469523429871, "sibling_score": 0.7244469523429871, "answer_score": 0.4545650988817215, "sibling_qid": "KOL-2022-01-3505-Q004", "sibling_text": "refrigeration expalined me about tev than ask provision taken in meat room now how temperature maintained", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Maintaining different room temperatures off one plant", "cross_family": false }, { "answer_id": "REEF-PREP-001", "score": 0.7234900593757629, "sibling_score": 0.7234900593757629, "answer_score": 0.5184270560741424, "sibling_qid": "KOL-2026-01-2953-Q005", "sibling_text": "how meat room temperature is controlled", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Provision (domestic) refrigerated rooms — arrangement and temperature control", "cross_family": false }, { "answer_id": "TEV-TXV-007", "score": 0.7029245495796204, "sibling_score": 0.7029245495796204, "answer_score": null, "sibling_qid": "KOL-2026-03-3931-Q006", "sibling_text": "meat room tev faulty how will you maintenance temp", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Faulty TEV in a meat/fish room with no spare — diagnosis and management", "cross_family": false } ] }, { "qid": "MUM-2026-05-3335-Q011", "text": "at what angle fuel oil injection ? 13 ", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Injection System", "tid": "MUM-2026-05-3335", "tray": "new", "candidates": [ { "answer_id": "FINJ-002", "score": 0.6265907883644104, "sibling_score": 0.6265907883644104, "answer_score": null, "sibling_qid": "KOC-2025-11-1976-Q013", "sibling_text": "fuel injector angle on cylinder head", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel injector overhaul and testing — spray pattern and opening pressure", "cross_family": false }, { "answer_id": "SAT-578-001", "score": 0.6031106114387512, "sibling_score": 0.6031106114387512, "answer_score": null, "sibling_qid": "MUM-2026-05-3335-Q013", "sibling_text": "at what angle staring air injection", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "At what crank angle is starting air admitted to a cylinder in a two-stroke main engine?", "cross_family": false }, { "answer_id": "FHV-006", "score": 0.5506519675254822, "sibling_score": 0.5506519675254822, "answer_score": null, "sibling_qid": "KOC-2026-03-1118-Q006", "sibling_text": "fuel oil treatment before injection x how auto ignition achieved", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "06. Fuel conditioning before injection and effect of inadequate heating", "cross_family": false } ] }, { "qid": "MUM-2026-05-3335-Q012", "text": "at what angle of exhaust valve open?", "family": "2-Stroke - Exhaust, Valve & Starting Air", "subtopic": "Exhaust Valve", "tid": "MUM-2026-05-3335", "tray": "review", "candidates": [ { "answer_id": "EXV-P02-002", "score": 0.6748625636100769, "sibling_score": 0.6748625636100769, "answer_score": null, "sibling_qid": "KOL-2023-10-1758-Q005", "sibling_text": "exhaust valve seat grinding procedure clearance degree of angle cut in lid and seat", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Seat/spindle grinding, templates, clearances (G1·G2·G3·F1) and seating-angle checks", "cross_family": false }, { "answer_id": "EXHV-P01-003", "score": 0.6722843647003174, "sibling_score": 0.6722843647003174, "answer_score": null, "sibling_qid": "KOL-2022-01-4001-Q006", "sibling_text": "difference in angle in exhaust valve and seat draw diagram purpose", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Construction, seat geometry and overhaul checks", "cross_family": false }, { "answer_id": "EXV-P02-001", "score": 0.6617693305015564, "sibling_score": 0.6617693305015564, "answer_score": null, "sibling_qid": "KOC-2026-02-2005-Q007", "sibling_text": "exhaust valve overhaul and asked about the grinding i told it s done on anchor so no vibration while doing grinding angle different for valve and valve seat about 2 5 degree he asked why and he wants to hear at cold condition it is point contact and hot condition it is line contact", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve overhaul & dismantling — procedure and precautions", "cross_family": false } ] }, { "qid": "MUM-2026-05-3336-Q003", "text": "Types of hazardous zone ?", "family": "Cargo Ops - Tankers", "subtopic": "IG System", "tid": "MUM-2026-05-3336", "tray": "new", "candidates": [ { "answer_id": "TNK-SAFE-BF26-003", "score": 0.6019001007080078, "sibling_score": 0.6019001007080078, "answer_score": 0.46240174770355225, "sibling_qid": "KOL-2026-01-1153-Q006", "sibling_text": "different type of zones in oil tanker in hazardous area example of equipments fitted in different zones", "sibling_family": "", "via": "sibling", "answer_title": "What safeties, including electrical safeties and Ex ratings, are provided on the deck of a tanker?", "cross_family": false }, { "answer_id": "TCM-374-005", "score": 0.6008486151695251, "sibling_score": 0.6008486151695251, "answer_score": null, "sibling_qid": "KOC-2026-02-0826-Q020", "sibling_text": "hazard zone in chemical tanker", "sibling_family": "Chemical Tankers", "via": "sibling", "answer_title": "Gas-freeing a tanker after discharge or before dry dock (why through the IG system)", "cross_family": true }, { "answer_id": "FLD-601-002", "score": 0.5911042094230652, "sibling_score": 0.5911042094230652, "answer_score": null, "sibling_qid": "MUM-2026-05-3085-Q007", "sibling_text": "what is flammability zone", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What is the flammable range and the flammability zone? What happens inside a cargo tank below 1% LEL?", "cross_family": false } ] }, { "qid": "MUM-2026-05-3337-Q009", "text": "⁠Squat Effect in ships ?", "family": "Ship Construction & Stability", "subtopic": "", "tid": "MUM-2026-05-3337", "tray": "review", "candidates": [ { "answer_id": "SQUAT-564-001", "score": 0.6659004092216492, "sibling_score": 0.6659004092216492, "answer_score": 0.5320789128541946, "sibling_qid": "MUM-2026-03-0845-Q009", "sibling_text": "squat effect in ships", "sibling_family": "", "via": "sibling", "answer_title": "Squat effect — the principle and the factors that drive it", "cross_family": false }, { "answer_id": "SQUAT-564-002", "score": 0.5521326065063477, "sibling_score": 0.5521326065063477, "answer_score": 0.4846398264169693, "sibling_qid": "KOL-2021-03-3987-Q002", "sibling_text": "ship squat how to reduce", "sibling_family": "", "via": "sibling", "answer_title": "Ship squat — how to reduce it in operation", "cross_family": false }, { "answer_id": "BK-003", "score": 0.510337769985199, "sibling_score": 0.510337769985199, "answer_score": null, "sibling_qid": "MUM-2026-06-3477-Q003", "sibling_text": "why bilge keel not over full length of ship", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "What are the bilge-keel design, length, depth and protrusion requirements?", "cross_family": false } ] }, { "qid": "MUM-2026-05-3337-Q010", "text": "⁠MLC 2006 ?", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2026-05-3337", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-007", "score": 0.5771352052688599, "sibling_score": 0.5771352052688599, "answer_score": null, "sibling_qid": "MUM-2026-02-0734-Q007", "sibling_text": "mlc 2006 detainable deficiency", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false }, { "answer_id": "MLC-WRH-B-002", "score": 0.4793151617050171, "sibling_score": 0.4793151617050171, "answer_score": null, "sibling_qid": "MUM-2022-07-0027-Q005", "sibling_text": "mlc 2006 wages rest hours", "sibling_family": "MLC", "via": "sibling", "answer_title": "Work and rest hours under MLC — the criteria, the weekly limit, the intervals", "cross_family": false }, { "answer_id": "DUS-P1-03", "score": 0.4664941728115082, "sibling_score": 0.4664941728115082, "answer_score": null, "sibling_qid": "KOL-2023-04-0735-Q004", "sibling_text": "docking plan 5 mlc 2006", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Docking plan — content, purpose and how the 2E uses it", "cross_family": true } ] }, { "qid": "MUM-2026-05-3337-Q012", "text": "⁠SAFCON Survey ?", "family": "Surveys - Statutory", "subtopic": "Safety Construction / Cargo Safety Cert", "tid": "MUM-2026-05-3337", "tray": "new", "candidates": [ { "answer_id": "SVY-SCOPE-002", "score": 0.5708810091018677, "sibling_score": 0.5708810091018677, "answer_score": null, "sibling_qid": "MUM-2025-05-2800-Q005", "sibling_text": "safcon survey as 2nd engg", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is checked in the engine room during a SAFCON (Safety Construction) survey?", "cross_family": false }, { "answer_id": "CERT-LIST-P02-003", "score": 0.5607097744941711, "sibling_score": 0.5607097744941711, "answer_score": null, "sibling_qid": "KOC-2025-01-2059-Q008", "sibling_text": "cof and cof related surveys internal", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Certificates that decide ship type and permitted cargo", "cross_family": false }, { "answer_id": "AFS-309-003", "score": 0.5205310583114624, "sibling_score": 0.5205310583114624, "answer_score": null, "sibling_qid": "KOC-2023-12-0252-Q005", "sibling_text": "how is survey related to afs carried out", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "IAFS Certificate, survey, validity and drydock compliance", "cross_family": true } ] }, { "qid": "MUM-2026-05-3338-Q001", "text": "Types of ship ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-05-3338", "tray": "review", "candidates": [ { "answer_id": "LLST-AB-001", "score": 0.817147433757782, "sibling_score": 0.817147433757782, "answer_score": 0.5332882106304169, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.7935513854026794, "sibling_score": 0.7935513854026794, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.7862049341201782, "sibling_score": 0.7862049341201782, "answer_score": 0.5277790129184723, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2026-05-3339-Q003", "text": "What is D and E rating ?", "family": "Electrical - Motors & Starters", "subtopic": "IP Rating / Enclosure", "tid": "MUM-2026-05-3339", "tray": "review", "candidates": [ { "answer_id": "CII-RATE-P02-001", "score": 0.6544450521469116, "sibling_score": 0.6544450521469116, "answer_score": null, "sibling_qid": "MUM-2025-09-0464-Q003", "sibling_text": "what is d and e rating", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "1. The CII rating scale A to E — what each rating means", "cross_family": true }, { "answer_id": "CII-RATE-P02-002", "score": 0.5910540819168091, "sibling_score": 0.5910540819168091, "answer_score": 0.3283821284770965, "sibling_qid": "MUM-2026-05-3261-Q003", "sibling_text": "cii rating cross rating d and e", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "2. Corrective action when the ship is rated D or E", "cross_family": true }, { "answer_id": "CII-CALC-P03-001", "score": 0.5066387057304382, "sibling_score": 0.5066387057304382, "answer_score": null, "sibling_qid": "KOL-2024-08-0852-Q005", "sibling_text": "eedi def unit cii rating action if vessel achieve d rating", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Calculating attained & required CII — formula, unit, reduction factor, measurements", "cross_family": true } ] }, { "qid": "MUM-2026-05-3339-Q004", "text": "Diff between: MNC and NC ?", "family": "ISM Code", "subtopic": "Major / Minor NC", "tid": "MUM-2026-05-3339", "tray": "review", "candidates": [ { "answer_id": "ISMNC-003", "score": 0.6671362519264221, "sibling_score": 0.6671362519264221, "answer_score": null, "sibling_qid": "MUM-2025-09-0464-Q004", "sibling_text": "diff between mnc and nc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Differentiate between a major non-conformity and a non-conformity under the ISM Code.", "cross_family": false }, { "answer_id": "MCC-MEB-P01-001", "score": 0.5415189266204834, "sibling_score": 0.5415189266204834, "answer_score": 0.27496378421783446, "sibling_qid": "KOL-2019-12-1507-Q006", "sibling_text": "diff btw mc and mc c", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "MC-C (\"Compact\") engine — design and the main constructional differences from MC", "cross_family": true }, { "answer_id": "MEB-MEC-P03-001", "score": 0.3380768269300461, "sibling_score": null, "answer_score": 0.3380768269300461, "sibling_qid": "", "sibling_text": "me b vs me c the core difference", "sibling_family": "", "via": "answer_title", "answer_title": "ME-B vs ME-C — the core difference", "cross_family": false } ] }, { "qid": "MUM-2026-05-3339-Q006", "text": "Diff between: safety and security ?", "family": "Risk & Safety Management", "subtopic": "Safety vs Security", "tid": "MUM-2026-05-3339", "tray": "review", "candidates": [ { "answer_id": "MR-DS-PV-B-003", "score": 0.7203433513641357, "sibling_score": 0.7203433513641357, "answer_score": null, "sibling_qid": "MUM-2026-07-3681-Q004", "sibling_text": "safety vs security", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "3. Alarms, trips, valves, and abnormal conditions of the deck seal", "cross_family": false }, { "answer_id": "ISPS-SL-003", "score": 0.6146193742752075, "sibling_score": 0.6146193742752075, "answer_score": 0.3843443855643272, "sibling_qid": "KOL-2025-09-1061-Q002", "sibling_text": "security 2 3 difference", "sibling_family": "ISPS", "via": "sibling", "answer_title": "Security levels — who sets them, ship vs port, level 2 vs 3", "cross_family": true }, { "answer_id": "ACRV-005", "score": 0.5912643074989319, "sibling_score": 0.5912643074989319, "answer_score": 0.368197101354599, "sibling_qid": "KOC-2025-03-1031-Q017", "sibling_text": "diff bw safety vv relief vv", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": true } ] }, { "qid": "MUM-2026-05-3340-Q002", "text": "Wat will effect on flag if ship detained by PSC ?", "family": "Surveys - Statutory", "subtopic": "Detention / Clear Ground", "tid": "MUM-2026-05-3340", "tray": "new", "candidates": [ { "answer_id": "DCG-002", "score": 0.578036904335022, "sibling_score": 0.578036904335022, "answer_score": 0.45535226464271544, "sibling_qid": "KOL-2025-09-1090-Q002", "sibling_text": "psc inspection deficiency in engine room that can detain ur ship", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What are the reasons for PSC detention and what is a detainable deficiency? Which engine-room deficiencies can detain your ship, which conventions can ground a detainable deficiency, and what is banning by PSC?", "cross_family": false }, { "answer_id": "FLAG-ST-004", "score": 0.5725330710411072, "sibling_score": 0.5725330710411072, "answer_score": null, "sibling_qid": "KOC-2024-08-0373-Q008", "sibling_text": "flag of convenience", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Flag of convenience and ship registration", "cross_family": false }, { "answer_id": "PSC-001", "score": 0.5630759000778198, "sibling_score": 0.5630759000778198, "answer_score": null, "sibling_qid": "KOC-2024-12-0487-Q003", "sibling_text": "under which rule psc enters vessels", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "1. What is PSC, why it is required, and its legal basis and scope", "cross_family": false } ] }, { "qid": "MUM-2026-05-3342-Q001", "text": "Have you done dry dock ? yes", "family": "Drydock & Underwater Surveys", "subtopic": "DD Preparation / Plans", "tid": "MUM-2026-05-3342", "tray": "review", "candidates": [ { "answer_id": "DDHSC-012", "score": 0.7287399172782898, "sibling_score": 0.7287399172782898, "answer_score": 0.47948542833328245, "sibling_qid": "MUM-2026-03-2952-Q022", "sibling_text": "have u been to dry dock", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "“Have you been to drydock?”", "cross_family": false }, { "answer_id": "DDHSC-001", "score": 0.7063287496566772, "sibling_score": 0.7063287496566772, "answer_score": 0.48490839600563046, "sibling_qid": "KOC-2025-02-1900-Q005", "sibling_text": "checks in dry dock", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Ship is in drydock and the dock is pumped dry — what checks do you carry out as Second Engineer?", "cross_family": false }, { "answer_id": "DUS-P3-01", "score": 0.6909107565879822, "sibling_score": 0.6909107565879822, "answer_score": null, "sibling_qid": "KOC-2024-08-0399-Q009", "sibling_text": "things only can be done in drydock", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Why do we drydock a ship — the purpose, and at what interval?", "cross_family": false } ] }, { "qid": "MUM-2026-05-3342-Q004", "text": "If in drydock u found port side bilge keel broken On certain point how u will rectify it to avoid coc what will be your plan ?\nAnswered : what type of steel what type of welder what type electrode , welding technique , surface preparation , after checks , CE and surveyor inspection etc ", "family": "Drydock & Underwater Surveys", "subtopic": "", "tid": "MUM-2026-05-3342", "tray": "review", "candidates": [ { "answer_id": "HULL-DD-001", "score": 0.7716187238693237, "sibling_score": 0.7716187238693237, "answer_score": 0.596182131767273, "sibling_qid": "KOL-2019-12-3303-Q005", "sibling_text": "hull crack repair how to prepare the surface and which welding method to use lh electrode", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "1. Hull plate / shell-weld crack repair in drydock", "cross_family": false }, { "answer_id": "DUS-P4-04", "score": 0.7364377379417419, "sibling_score": 0.7364377379417419, "answer_score": null, "sibling_qid": "MUM-2026-05-3165-Q003", "sibling_text": "bulkhead crack what type of welding", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Card 4 — Crack on a bulkhead: insert welding repair and location reporting", "cross_family": false }, { "answer_id": "PW-327-003", "score": 0.7151646614074707, "sibling_score": 0.7151646614074707, "answer_score": 0.5867999792098999, "sibling_qid": "MUM-2022-09-2145-Q010", "sibling_text": "if in drydock crack on shell plate welding action if no class surveyor available", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "3. Shell / deck plate repair and renewal in dry dock (class context)", "cross_family": true } ] }, { "qid": "MUM-2026-05-3342-Q005", "text": "Sand blasting and standard ?", "family": "Drydock & Underwater Surveys", "subtopic": "Drydock / Hull Repair / Sea Chest", "tid": "MUM-2026-05-3342", "tray": "new", "candidates": [ { "answer_id": "HULL-PAINT-001", "score": 0.49818602204322815, "sibling_score": 0.49818602204322815, "answer_score": 0.3673570677638054, "sibling_qid": "MUM-2023-02-2164-Q006", "sibling_text": "surface preparation standard", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Preparing the hull surface before painting in dry dock — cleanliness standard and methods", "cross_family": false }, { "answer_id": "HV-SYS-P06-003", "score": 0.47304970026016235, "sibling_score": 0.47304970026016235, "answer_score": null, "sibling_qid": "KOC-2024-09-1394-Q005", "sibling_text": "arc blasting", "sibling_family": "", "via": "sibling", "answer_title": "Arc flash, arc blast and arcing control in HV systems", "cross_family": false }, { "answer_id": "TURBO-CS-P02-006", "score": 0.4457661509513855, "sibling_score": 0.4457661509513855, "answer_score": null, "sibling_qid": "KOC-2026-03-1114-Q005", "sibling_text": "q t c grit washing", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharger washing — turbine-side (water/grit) and compressor-side", "cross_family": true } ] }, { "qid": "MUM-2026-05-3342-Q007", "text": "What is the significance of certificate of class ? He wants to hear DOC.", "family": "Surveys - Statutory", "subtopic": "Certificates List", "tid": "MUM-2026-05-3342", "tray": "new", "candidates": [ { "answer_id": "CERT-LIST-P02-005", "score": 0.6298996210098267, "sibling_score": 0.6298996210098267, "answer_score": 0.37450430691242215, "sibling_qid": "MUM-2026-06-3644-Q006", "sibling_text": "relevance and application of certificate of class", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Class certificate / classification certificate", "cross_family": false }, { "answer_id": "CERT-LIST-P01-001", "score": 0.59539794921875, "sibling_score": 0.59539794921875, "answer_score": null, "sibling_qid": "KOL-2026-08-4162-Q004", "sibling_text": "what are the certificates issued by the class", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "List the statutory certificates carried onboard a ship.", "cross_family": false }, { "answer_id": "COC-001", "score": 0.5692996382713318, "sibling_score": 0.5692996382713318, "answer_score": null, "sibling_qid": "MUM-2026-06-3410-Q007", "sibling_text": "certificate of class condition of class", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is a Condition of Class? Give examples, say where it is found, how much time is given to rectify it, and what happens if it is not met in time.", "cross_family": false } ] }, { "qid": "MUM-2026-05-3343-Q001", "text": "Where r u from type of ship college engines ?", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "MUM-2026-05-3343", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.6696906685829163, "sibling_score": 0.6696906685829163, "answer_score": null, "sibling_qid": "MUM-2026-09-3882-Q001", "sibling_text": "introduction types of ship main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.6499620079994202, "sibling_score": 0.6499620079994202, "answer_score": null, "sibling_qid": "CHE-2026-02-0243-Q001", "sibling_text": "type of ship and type of main engine you worked", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "AC-VE-001", "score": 0.6384629607200623, "sibling_score": 0.6384629607200623, "answer_score": null, "sibling_qid": "MUM-2026-01-2904-Q001", "sibling_text": "what type of ship engine power and nomenclature", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Volumetric efficiency: define it, and if it drops how do you improve it (with bumping clearance)?", "cross_family": false } ] }, { "qid": "MUM-2026-05-3343-Q002", "text": "MPS, significance, value ?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Mean Piston Speed", "tid": "MUM-2026-05-3343", "tray": "new", "candidates": [ { "answer_id": "EGTP-P02-006", "score": 0.5938306450843811, "sibling_score": 0.5938306450843811, "answer_score": null, "sibling_qid": "KOL-2024-05-1778-Q002", "sibling_text": "1 mps and its significance", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Mean Piston Speed — Calculation, Limits, Significance", "cross_family": false }, { "answer_id": "IND-CARD-004", "score": 0.5571213364601135, "sibling_score": 0.5571213364601135, "answer_score": null, "sibling_qid": "MUM-2022-09-1022-Q005", "sibling_text": "what is mep significance", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "How are MEP, diagram area and engine power calculated from indicator-card data?", "cross_family": false }, { "answer_id": "PMAX-PCOMP-BF041-001", "score": 0.5341153144836426, "sibling_score": 0.5341153144836426, "answer_score": null, "sibling_qid": "CHE-2025-11-0222-Q004", "sibling_text": "what s mean pmax significance of pmax", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What is Pmax, what is its significance, and why do we want to increase it?", "cross_family": false } ] }, { "qid": "MUM-2026-05-3344-Q001", "text": "Type of Engine sailed ?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-05-3344", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8497133851051331, "sibling_score": 0.8497133851051331, "answer_score": null, "sibling_qid": "MUM-2026-04-1007-Q002", "sibling_text": "type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.7688729166984558, "sibling_score": 0.7688729166984558, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q001", "sibling_text": "type of ship sailed and engines details", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7366727590560913, "sibling_score": 0.7366727590560913, "answer_score": null, "sibling_qid": "KOL-2025-12-2031-Q002", "sibling_text": "type of ship and engine sailed engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "MUM-2026-05-3345-Q001", "text": "Type of Engine and ship", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "MUM-2026-05-3345", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8273165822029114, "sibling_score": 0.8273165822029114, "answer_score": null, "sibling_qid": "MUM-2025-08-2357-Q001", "sibling_text": "type of ship type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.8129838109016418, "sibling_score": 0.8129838109016418, "answer_score": null, "sibling_qid": "MUM-2026-07-3668-Q004", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7597209215164185, "sibling_score": 0.7597209215164185, "answer_score": null, "sibling_qid": "KOL-2025-12-2031-Q002", "sibling_text": "type of ship and engine sailed engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "MUM-2026-05-3345-Q002", "text": "Conventional MC engine have fuel pump so what is in ME and how pressure achieved?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Injection System", "tid": "MUM-2026-05-3345", "tray": "review", "candidates": [ { "answer_id": "CR-248-002", "score": 0.6971522569656372, "sibling_score": 0.6971522569656372, "answer_score": null, "sibling_qid": "KOC-2026-02-1103-Q010", "sibling_text": "how in me engine fuel injection occurs fuel pump controlled by hydraulic pressure x pressure of hyd oil and fuel oil 250 bar and 1000 bar x how 250 bar generates 1000 bar area is much larger internal as second engineer how you will do a decarb expain detail", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How fuel is injected in electronically controlled ME / RT-flex engines — how rail or hydraulic pressure produces injection", "cross_family": false }, { "answer_id": "FCL-P03-002", "score": 0.6921572685241699, "sibling_score": 0.6921572685241699, "answer_score": null, "sibling_qid": "KOC-2021-09-1767-Q004", "sibling_text": "fuel pump lead with dia i explained mc engine one", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "MAN B&W / MC-C / MCC fuel pump timing and lead", "cross_family": false }, { "answer_id": "FP-OVHL-006", "score": 0.6759921908378601, "sibling_score": 0.6759921908378601, "answer_score": 0.5758222162723541, "sibling_qid": "MUM-2025-12-0615-Q006", "sibling_text": "mc engine and mcc engine fuel pump construction difference", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Main-engine fuel pump — construction, working, VIT, reversing, MC vs ME-C", "cross_family": false } ] }, { "qid": "MUM-2026-05-3345-Q005", "text": "Trips in reefer system ?", "family": "Cargo Ops - Tankers", "subtopic": "IG System / IG Trips / IG Deck Safeties", "tid": "MUM-2026-05-3345", "tray": "new", "candidates": [ { "answer_id": "RAC-HPLP-389-003", "score": 0.5882229208946228, "sibling_score": 0.5882229208946228, "answer_score": 0.3638380765914917, "sibling_qid": "MUM-2025-12-1222-Q004", "sibling_text": "trips on refrig system", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Trips and cutouts on a refrigeration compressor (HP, LP, LO)", "cross_family": true }, { "answer_id": "IGAT-583-001", "score": 0.53167325258255, "sibling_score": 0.53167325258255, "answer_score": null, "sibling_qid": "MUM-2026-05-3157-Q002", "sibling_text": "trips in ig system", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "State all the alarms, trips and safety cut-outs provided on a tanker inert gas (IG) system.", "cross_family": false }, { "answer_id": "REEF-COMP-002", "score": 0.49336713552474976, "sibling_score": 0.49336713552474976, "answer_score": null, "sibling_qid": "KOC-2024-09-1400-Q001", "sibling_text": "reefer l o trip", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Lube-oil low-pressure / differential-pressure trip — how it works, tests and sets", "cross_family": true } ] }, { "qid": "MUM-2026-05-3345-Q006", "text": "reasons for High pressure discharge ?", "family": "Refrigeration & AC", "subtopic": "HP / LP Trip", "tid": "MUM-2026-05-3345", "tray": "new", "candidates": [ { "answer_id": "RAC-HPLP-389-001", "score": 0.6498301029205322, "sibling_score": 0.6498301029205322, "answer_score": null, "sibling_qid": "CHE-2026-02-0471-Q002", "sibling_text": "condenser high pressure reasons", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Refrigeration / AC compressor trips on high pressure — causes and checks", "cross_family": false }, { "answer_id": "BLR-STM-PR-B54-003", "score": 0.6321846842765808, "sibling_score": 0.6321846842765808, "answer_score": null, "sibling_qid": "KOL-2018-06-3152-Q006", "sibling_text": "high pressure cut out what are the reasons", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "The boiler high-pressure cut-out has operated — what makes it cut out", "cross_family": true }, { "answer_id": "REEF-COMP-001", "score": 0.6223669052124023, "sibling_score": 0.6223669052124023, "answer_score": null, "sibling_qid": "KOC-2024-07-1370-Q007", "sibling_text": "high pressure trip on refer compressor", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Reefer/AC compressor safeties and cut-outs — safety valve, HP and LP cut-outs", "cross_family": false } ] }, { "qid": "MUM-2026-05-3345-Q008", "text": "cargo pump emergency stop at how many locations?", "family": "Cargo Ops - Tankers", "subtopic": "Cargo Pump (Framo / Eductor)", "tid": "MUM-2026-05-3345", "tray": "new", "candidates": [ { "answer_id": "CPS-316-004", "score": 0.61411052942276, "sibling_score": 0.61411052942276, "answer_score": null, "sibling_qid": "MUM-2024-12-0227-Q005", "sibling_text": "location of emergency stop switch of cargo operation", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Cargo-system alarms, trips, safeties, emergency stops and monitoring during discharge", "cross_family": false }, { "answer_id": "CPFE-583-015", "score": 0.5666405558586121, "sibling_score": 0.5666405558586121, "answer_score": 0.4550451397895813, "sibling_qid": "MUM-2026-09-3987-Q004", "sibling_text": "emergency operation of cargo pump in lng carrier", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Emergency cargo pumping when a pump fails or is damaged", "cross_family": false }, { "answer_id": "CPFE-583-014", "score": 0.5580365657806396, "sibling_score": 0.5580365657806396, "answer_score": null, "sibling_qid": "MUM-2025-05-2301-Q001", "sibling_text": "how many emergency stop in framo", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Safeties, interlocks and emergency stops", "cross_family": false } ] }, { "qid": "MUM-2026-05-3346-Q001", "text": "How to take AE bottom end clearance without removing any thing?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Decarb Checks / Connecting Rod / Bottom End Bearing", "tid": "MUM-2026-05-3346", "tray": "review", "candidates": [ { "answer_id": "AECR-651-004", "score": 0.7031204104423523, "sibling_score": 0.7031204104423523, "answer_score": 0.4946175843477249, "sibling_qid": "MUM-2026-05-3226-Q001", "sibling_text": "how will you take the bottom end bearing clearance of ae without removing bearing", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "How do you inspect the bottom-end bearing, and how do you take the AE big-end clearance without removing it?", "cross_family": false }, { "answer_id": "AE-CRP-007", "score": 0.6749082207679749, "sibling_score": 0.6749082207679749, "answer_score": null, "sibling_qid": "MUM-2026-05-3331-Q003", "sibling_text": "how to take bottom end bearing clearance of ae", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE big-end / bottom-end bearing — inspection, bedding, nip and crush", "cross_family": false }, { "answer_id": "BEB-B-002", "score": 0.652999222278595, "sibling_score": 0.652999222278595, "answer_score": 0.5146187990903854, "sibling_qid": "KOC-2025-03-2061-Q009", "sibling_text": "how to take bottom end clearance", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bottom End Bearing — Clearance Measurement", "cross_family": true } ] }, { "qid": "MUM-2026-05-3348-Q003", "text": "Under voltage relay - significance?", "family": "Electrical - Generator & Alternator", "subtopic": "Voltage Dip / Droop", "tid": "MUM-2026-05-3348", "tray": "review", "candidates": [ { "answer_id": "OC-UV-TRIP-001", "score": 0.7296214699745178, "sibling_score": 0.7296214699745178, "answer_score": 0.5217307507991791, "sibling_qid": "CHE-2026-04-0367-Q002", "sibling_text": "undervoltage relay working why its used and when it ll occurs", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Under-voltage trip / no-volt coil — purpose, working, onboard test and calibration", "cross_family": false }, { "answer_id": "RPT-C-001", "score": 0.6784152388572693, "sibling_score": 0.6784152388572693, "answer_score": null, "sibling_qid": "CHE-2026-04-0518-Q007", "sibling_text": "reverse power relay what is the link between under voltage trip and reverse power", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Reverse power in the paralleling picture — where it sits among the alternator safeties", "cross_family": false }, { "answer_id": "ALT-GEN-P01-001", "score": 0.628367006778717, "sibling_score": 0.628367006778717, "answer_score": null, "sibling_qid": "MUM-2025-08-1613-Q006", "sibling_text": "alternator safety said overcurrent differential relay over voltage under voltage", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Alternator/generator safeties and protection trips", "cross_family": false } ] }, { "qid": "MUM-2026-05-3349-Q001", "text": "what are Exd, exp, Exi ?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "EEDI / EEXI / CII / SEEMP", "tid": "MUM-2026-05-3349", "tray": "new", "candidates": [ { "answer_id": "EXD-EXI-A-001", "score": 0.611385703086853, "sibling_score": 0.611385703086853, "answer_score": null, "sibling_qid": "KOC-2023-03-1241-Q002", "sibling_text": "exd and exi explain application of both", "sibling_family": "", "via": "sibling", "answer_title": "Ex i (intrinsically safe) vs Ex d (flameproof / explosion-proof) — the difference", "cross_family": false }, { "answer_id": "EXD-EXI-A-002", "score": 0.6085917949676514, "sibling_score": 0.6085917949676514, "answer_score": null, "sibling_qid": "KOL-2019-02-2263-Q004", "sibling_text": "what is exd n exi", "sibling_family": "", "via": "sibling", "answer_title": "Ex d (flameproof / explosion-proof) — construction, shipboard applications and maintenance", "cross_family": false }, { "answer_id": "EEDI-C-001", "score": 0.5600295066833496, "sibling_score": 0.5600295066833496, "answer_score": 0.3443379282951355, "sibling_qid": "CHE-2026-09-3924-Q005", "sibling_text": "eexi vs exedi vs eeoi", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "EEDI versus EEXI — what is the difference?", "cross_family": false } ] }, { "qid": "MUM-2026-05-3349-Q003", "text": "Types of relays in ships and places", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-05-3349", "tray": "new", "candidates": [ { "answer_id": "LLST-AB-001", "score": 0.5556151270866394, "sibling_score": 0.5556151270866394, "answer_score": null, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "PRL-594-002", "score": 0.5461018085479736, "sibling_score": 0.5461018085479736, "answer_score": 0.3374745845794678, "sibling_qid": "MUM-2026-01-1850-Q004", "sibling_text": "types of relay", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "What is a relay, what is it for, and what are its types?", "cross_family": true }, { "answer_id": "LLST-AB-002", "score": 0.514698326587677, "sibling_score": 0.514698326587677, "answer_score": null, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2026-05-3349-Q004", "text": "working of Differential Relay", "family": "Electrical - Motors & Starters", "subtopic": "Induction Motor (General / Working)", "tid": "MUM-2026-05-3349", "tray": "new", "candidates": [ { "answer_id": "STARTER-DEC-B-003", "score": 0.5523120760917664, "sibling_score": 0.5523120760917664, "answer_score": null, "sibling_qid": "KOC-2025-03-1520-Q001", "sibling_text": "ext sreekumar int senthil 1 dol starter 2 difference between relay and contactor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "DOL starter — use, current, range and limits", "cross_family": false }, { "answer_id": "CRANE-EMBRK-001", "score": 0.5479269623756409, "sibling_score": 0.5479269623756409, "answer_score": null, "sibling_qid": "MUM-2026-06-3374-Q008", "sibling_text": "how electromagnetic relay working", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Working and purpose of the electromagnetic brake, and where it is used onboard", "cross_family": false }, { "answer_id": "PRL-594-001", "score": 0.5397990345954895, "sibling_score": 0.5397990345954895, "answer_score": null, "sibling_qid": "KOC-2024-01-1326-Q005", "sibling_text": "5 relay and contactor diff", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "What is the difference between a relay and a contactor?", "cross_family": true } ] }, { "qid": "MUM-2026-05-3350-Q001", "text": "Sequential start ?wanted to hear order of starting", "family": "Electrical - Protection & Relays", "subtopic": "Preferential Trip", "tid": "MUM-2026-05-3350", "tray": "review", "candidates": [ { "answer_id": "PTRIP-BO-003", "score": 0.8310124278068542, "sibling_score": 0.8310124278068542, "answer_score": 0.425509375333786, "sibling_qid": "KOC-2025-01-1457-Q001", "sibling_text": "sequential start wanted to hear order of starting", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Sequential starting after a blackout — what starts first, and why?", "cross_family": true }, { "answer_id": "EICU-MAN-P02-003", "score": 0.6112375259399414, "sibling_score": 0.6112375259399414, "answer_score": null, "sibling_qid": "KOL-2022-03-1671-Q003", "sibling_text": "sequence of starting me after telegrapgh order", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Command sequence — bridge, ECR and local control; remote manoeuvring", "cross_family": true }, { "answer_id": "REV-PROC-007", "score": 0.5650363564491272, "sibling_score": 0.5650363564491272, "answer_score": null, "sibling_qid": "KOC-2025-07-1042-Q004", "sibling_text": "when astern order given what is happening give the sequence", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Bridge command to astern — the full sequence, and crash astern", "cross_family": true } ] }, { "qid": "MUM-2026-05-3351-Q004", "text": "Emergency light locations?", "family": "Electrical - Generator & Alternator", "subtopic": "Emergency DG", "tid": "MUM-2026-05-3351", "tray": "review", "candidates": [ { "answer_id": "LT-SRC-002", "score": 0.6816895604133606, "sibling_score": 0.6816895604133606, "answer_score": 0.5199792474508286, "sibling_qid": "CHE-2026-05-0620-Q008", "sibling_text": "emergency lighting regulation how minimum no and positions are calculated where it is mentioned", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Where is emergency lighting required, and what does SOLAS demand?", "cross_family": false }, { "answer_id": "LT-SRC-003", "score": 0.6515941023826599, "sibling_score": 0.6515941023826599, "answer_score": 0.46874705255031585, "sibling_qid": "KOL-2022-09-0675-Q003", "sibling_text": "priority of emergency lighting locations like navigation deck embarkation deck", "sibling_family": "", "via": "sibling", "answer_title": "What lighting is required for embarkation, lifeboat areas and survival craft?", "cross_family": false }, { "answer_id": "EDG-P01-002", "score": 0.6177996397018433, "sibling_score": 0.6177996397018433, "answer_score": null, "sibling_qid": "KOC-2023-08-0209-Q015", "sibling_text": "emergency gen location criteria", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Emergency generator room — location and rounds", "cross_family": false } ] }, { "qid": "MUM-2026-05-3352-Q001", "text": "Type of ships, Type of engine ?", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "MUM-2026-05-3352", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8241365551948547, "sibling_score": 0.8241365551948547, "answer_score": null, "sibling_qid": "MUM-2025-08-2357-Q001", "sibling_text": "type of ship type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.7960854172706604, "sibling_score": 0.7960854172706604, "answer_score": null, "sibling_qid": "MUM-2026-07-3668-Q004", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "AC-VE-001", "score": 0.7564298510551453, "sibling_score": 0.7564298510551453, "answer_score": null, "sibling_qid": "MUM-2026-01-2904-Q001", "sibling_text": "what type of ship engine power and nomenclature", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Volumetric efficiency: define it, and if it drops how do you improve it (with bumping clearance)?", "cross_family": false } ] }, { "qid": "MUM-2026-05-3352-Q002", "text": "Type of bearings in your Main Engine Difference between Thin shell and thick shell bearing?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Main Bearing", "tid": "MUM-2026-05-3352", "tray": "review", "candidates": [ { "answer_id": "BRG-NOM-003", "score": 0.7733935117721558, "sibling_score": 0.7733935117721558, "answer_score": 0.5180873036384582, "sibling_qid": "CHE-2026-04-0522-Q002", "sibling_text": "thin shell bearing vs thick shell bearing where thick shell bearing is still used", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Thin-Shell, Bi-Metal and Tri-Metal Bearings — Construction and Why Thin-Shell", "cross_family": false }, { "answer_id": "WMAT-170-003", "score": 0.7579059600830078, "sibling_score": 0.7579059600830078, "answer_score": 0.6335592567920685, "sibling_qid": "KOL-2018-08-1402-Q002", "sibling_text": "thickshell n thinshell bearing design differences advtg", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Thin-shell and thick-shell bearings: design, advantages, developments", "cross_family": false }, { "answer_id": "BRG-NOM-002", "score": 0.6836572289466858, "sibling_score": 0.6836572289466858, "answer_score": null, "sibling_qid": "KOC-2021-07-0920-Q002", "sibling_text": "type of bearing its specialty thickness", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Ball, Roller, Radial and Axial Bearings — Choosing the Type", "cross_family": false } ] }, { "qid": "MUM-2026-05-3352-Q006", "text": "Fretting corrosion?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "White Metal & Material", "tid": "MUM-2026-05-3352", "tray": "review", "candidates": [ { "answer_id": "WMAT-170-007", "score": 0.7828919291496277, "sibling_score": 0.7828919291496277, "answer_score": null, "sibling_qid": "MUM-2026-06-3396-Q008", "sibling_text": "fretting corrosion", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Tin-oxide corrosion of white metal and its prevention", "cross_family": false }, { "answer_id": "CORR-DEZ-004", "score": 0.6314117908477783, "sibling_score": 0.6314117908477783, "answer_score": 0.4831853151321411, "sibling_qid": "CHE-2026-05-0613-Q001", "sibling_text": "crevices corrosion", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What is crevice corrosion?", "cross_family": true }, { "answer_id": "WMAT-170-008", "score": 0.6217067837715149, "sibling_score": 0.6217067837715149, "answer_score": null, "sibling_qid": "KOL-2026-04-2057-Q005", "sibling_text": "fretting and where it happens", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bearing defects and damage indications, and reading them", "cross_family": false } ] }, { "qid": "MUM-2026-05-3352-Q009", "text": "Tell me how sand blasting was carried out and it's requirements?", "family": "Drydock & Underwater Surveys", "subtopic": "Drydock / Hull Repair / Sea Chest", "tid": "MUM-2026-05-3352", "tray": "new", "candidates": [ { "answer_id": "HULL-PAINT-001", "score": 0.43993186950683594, "sibling_score": 0.43993186950683594, "answer_score": 0.3340259402990341, "sibling_qid": "KOL-2021-08-3452-Q002", "sibling_text": "hull preparation painting type of paint note don t say cleaning by abrasive blasting he said now a days it banned port authority will catch you", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Preparing the hull surface before painting in dry dock — cleanliness standard and methods", "cross_family": false }, { "answer_id": "HV-SYS-P06-003", "score": 0.3800584077835083, "sibling_score": 0.3800584077835083, "answer_score": null, "sibling_qid": "KOC-2024-09-1394-Q005", "sibling_text": "arc blasting", "sibling_family": "", "via": "sibling", "answer_title": "Arc flash, arc blast and arcing control in HV systems", "cross_family": false }, { "answer_id": "TURBO-CS-P02-006", "score": 0.3554508090019226, "sibling_score": 0.3554508090019226, "answer_score": null, "sibling_qid": "KOC-2026-03-1114-Q005", "sibling_text": "q t c grit washing", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharger washing — turbine-side (water/grit) and compressor-side", "cross_family": true } ] }, { "qid": "MUM-2026-05-3352-Q013", "text": "Refractory material in your boiler? wanted to hear about acidic, basic, neutral.", "family": "Boilers - Construction & Components", "subtopic": "Furnace / Refractory", "tid": "MUM-2026-05-3352", "tray": "review", "candidates": [ { "answer_id": "FURN-REF-001", "score": 0.7313302755355835, "sibling_score": 0.7313302755355835, "answer_score": 0.5683706134557723, "sibling_qid": "MUM-2026-02-1254-Q008", "sibling_text": "acidic and basic refractory", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Boiler refractory — materials, types, composition and acidic / basic refractory", "cross_family": false }, { "answer_id": "FURN-REF-002", "score": 0.666772723197937, "sibling_score": 0.666772723197937, "answer_score": null, "sibling_qid": "MUM-2022-07-1013-Q010", "sibling_text": "what type of refractory on boiler if you put refrectory on boiler how can insert whats the procedure whats the composition too much cross question", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Boiler refractory patch-up, restoration, brick support and repair procedure", "cross_family": false }, { "answer_id": "BWTEST-C-001", "score": 0.5247887253761291, "sibling_score": null, "answer_score": 0.5247887253761291, "sibling_qid": "", "sibling_text": "ph acidity control why ph is held and what acidic or high ph water means carbon steel shell is protected by a magnetite film that is stable only in alkaline water acid dissolves it strong caustic cracks it representative bands boiler water 9 5 11 5 feed hotwell 8 5 9 5 treatment maker sms set not fixed law", "sibling_family": "", "via": "answer_title", "answer_title": "pH / acidity control — why pH is held, and what acidic or high-pH water means", "cross_family": false } ] }, { "qid": "MUM-2026-05-3352-Q014", "text": "commonly used electrode on ship for welding?", "family": "Workshop & Welding", "subtopic": "Welding / Brazing / Soldering", "tid": "MUM-2026-05-3352", "tray": "review", "candidates": [ { "answer_id": "WBS-C-001", "score": 0.7266031503677368, "sibling_score": 0.7266031503677368, "answer_score": null, "sibling_qid": "MUM-2025-11-2475-Q003", "sibling_text": "welding used on ship", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding, brazing and soldering — what they are, the shipboard processes, and workshop safety", "cross_family": false }, { "answer_id": "LH-ELEC-001", "score": 0.7139381766319275, "sibling_score": 0.7139381766319275, "answer_score": 0.5423692673444748, "sibling_qid": "MUM-2026-06-3451-Q014", "sibling_text": "ci welding electrodes", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "1. Where are low-hydrogen electrodes used onboard?", "cross_family": false }, { "answer_id": "WELD-B-006", "score": 0.7100719809532166, "sibling_score": 0.7100719809532166, "answer_score": 0.5320607244968414, "sibling_qid": "KOL-2018-01-3115-Q003", "sibling_text": "welding of 10 mm thick plates surface preparation size of electrodes used where on ship 10 mm plates used", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding electrodes — selection, storage and handling", "cross_family": false } ] }, { "qid": "MUM-2026-06-3353-Q001", "text": "Type of ship sailed ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-06-3353", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.845789909362793, "sibling_score": 0.845789909362793, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8448031544685364, "sibling_score": 0.8448031544685364, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7926928400993347, "sibling_score": 0.7926928400993347, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "MUM-2026-06-3353-Q002", "text": "Name plates of ME, AE and boiler ?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-06-3353", "tray": "new", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.5758171677589417, "sibling_score": 0.5758171677589417, "answer_score": null, "sibling_qid": "CHE-2026-05-0585-Q006", "sibling_text": "boiler accumulation test and boiler name plate specifications", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": true }, { "answer_id": "ENG-NOM-005", "score": 0.5722473859786987, "sibling_score": 0.5722473859786987, "answer_score": null, "sibling_qid": "MUM-2026-02-1272-Q003", "sibling_text": "me ae engine nomenclature", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.5557162165641785, "sibling_score": 0.5557162165641785, "answer_score": null, "sibling_qid": "MUM-2026-05-3082-Q001", "sibling_text": "type of engine boiler aux engine generator", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false } ] }, { "qid": "MUM-2026-06-3353-Q003", "text": "Construction Between AUX ENGINE & MAIN ENGINE ?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-06-3353", "tray": "new", "candidates": [ { "answer_id": "ENG-NOM-006", "score": 0.5564953684806824, "sibling_score": 0.5564953684806824, "answer_score": null, "sibling_qid": "CHE-2026-05-0585-Q001", "sibling_text": "main engine specification complete", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Short-form asks: SMC-C, LMC, and ME vs MC quickly", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.5539227724075317, "sibling_score": 0.5539227724075317, "answer_score": 0.47178308963775634, "sibling_qid": "MUM-2026-03-1294-Q005", "sibling_text": "so what main engine auxiliary engine you had", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": true }, { "answer_id": "AEDEC-291-005", "score": 0.5510781407356262, "sibling_score": 0.5510781407356262, "answer_score": null, "sibling_qid": "KOC-2025-08-1940-Q011", "sibling_text": "explain running in procedure of aux engine", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "5. Running-in, gradual loading, confirming run-in", "cross_family": true } ] }, { "qid": "MUM-2026-06-3353-Q009", "text": "Types of coupling in engine room?", "family": "General Marine Engineering", "subtopic": "Shafting / Propeller / CPP", "tid": "MUM-2026-06-3353", "tray": "review", "candidates": [ { "answer_id": "RGEAR-002", "score": 0.7284608483314514, "sibling_score": 0.7284608483314514, "answer_score": 0.5277998864650726, "sibling_qid": "KOL-2020-01-3310-Q006", "sibling_text": "flexible coupling where used in engine room", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Flexible coupling — types, working, and where it is used in the engine room", "cross_family": false }, { "answer_id": "SHAFT-CPP-008", "score": 0.6586554050445557, "sibling_score": 0.6586554050445557, "answer_score": 0.5003586202859879, "sibling_qid": "MUM-2025-12-2899-Q019", "sibling_text": "types of coupling", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "8. Shaft-line couplings, transmission & feathering", "cross_family": false }, { "answer_id": "COT-P02-06", "score": 0.5970299243927002, "sibling_score": 0.5970299243927002, "answer_score": null, "sibling_qid": "KOL-2019-02-1441-Q006", "sibling_text": "ig blower n motor connected which type of coupling", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Explain the inert-gas blower arrangement, required capacity, pressure control, redundancy and safeguards.", "cross_family": true } ] }, { "qid": "MUM-2026-06-3354-Q004", "text": "⁠how injection timing is achieved in ME ?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "VIT Mechanism", "tid": "MUM-2026-06-3354", "tray": "new", "candidates": [ { "answer_id": "VIT-MECH-A-002", "score": 0.5151892304420471, "sibling_score": 0.5151892304420471, "answer_score": null, "sibling_qid": "CHE-2025-10-0448-Q002", "sibling_text": "how the start of injection timing is controlled", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How VIT works — varying the start of injection on the fuel pump", "cross_family": false }, { "answer_id": "VIT-MECH-D-001", "score": 0.5124070048332214, "sibling_score": 0.5124070048332214, "answer_score": null, "sibling_qid": "KOL-2018-12-1435-Q001", "sibling_text": "vit and super vit explain both how to alter injection timing in both and how to adjust break point in super vit", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Super-VIT — construction and working (double-thread / upper-lower thread)", "cross_family": false }, { "answer_id": "FINJ-002", "score": 0.493649423122406, "sibling_score": 0.493649423122406, "answer_score": null, "sibling_qid": "MUM-2022-07-2136-Q004", "sibling_text": "me injector testing", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel injector overhaul and testing — spray pattern and opening pressure", "cross_family": false } ] }, { "qid": "MUM-2026-06-3354-Q005", "text": "condensation in boiler plate how to proceed for repair ?", "family": "Boilers - General", "subtopic": "Boiler Miscellaneous", "tid": "MUM-2026-06-3354", "tray": "new", "candidates": [ { "answer_id": "BLR-TUBE-P02-003", "score": 0.6111922264099121, "sibling_score": 0.6111922264099121, "answer_score": 0.4910262703895569, "sibling_qid": "KOL-2021-09-3456-Q003", "sibling_text": "boiler tube leaking explain about the repair procedure", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Repairing, removing and renewing a boiler tube; Class formalities", "cross_family": true }, { "answer_id": "BW-TEST-D-002", "score": 0.5995030403137207, "sibling_score": 0.5995030403137207, "answer_score": null, "sibling_qid": "KOL-2017-08-1322-Q004", "sibling_text": "boiler different types of corrosion boiler condensate value how to check", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Impurities, contamination and the types of boiler corrosion", "cross_family": true }, { "answer_id": "STHX-008", "score": 0.5916021466255188, "sibling_score": 0.5916021466255188, "answer_score": null, "sibling_qid": "KOL-2018-08-3176-Q005", "sibling_text": "retubing full procedure asked if condenser tube has leaked how to replace it", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "STHX-08 — Condensers (main / auxiliary / dump): tube attachment, testing, renewal and safety", "cross_family": true } ] }, { "qid": "MUM-2026-06-3355-Q003", "text": "Type of bedplate & why of such type?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Bedplate / A-Frame", "tid": "MUM-2026-06-3355", "tray": "review", "candidates": [ { "answer_id": "FWFB-P02-007", "score": 0.674029529094696, "sibling_score": 0.674029529094696, "answer_score": null, "sibling_qid": "MUM-2026-03-2952-Q007", "sibling_text": "what type of bedplate", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Transverse and longitudinal girders: arrangement and purpose", "cross_family": false }, { "answer_id": "BED-CHOCK-001", "score": 0.5020684599876404, "sibling_score": 0.5020684599876404, "answer_score": null, "sibling_qid": "MUM-2023-08-0952-Q004", "sibling_text": "how to fix bed plate on ship", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "How is the main-engine bedplate fixed to the ship's structure?", "cross_family": false }, { "answer_id": "CHK-RM-001", "score": 0.47827330231666565, "sibling_score": 0.47827330231666565, "answer_score": 0.3930296301841736, "sibling_qid": "KOL-2018-10-1428-Q003", "sibling_text": "how bedplate is connected to hull", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What are chocks? Function, types, where fitted and how placed — which have the biggest area, and how does the bedplate connect to the hull?", "cross_family": false } ] }, { "qid": "MUM-2026-06-3355-Q004", "text": "Why CSM carried out. Other than this what is the survey carried out similar to this?", "family": "Drydock & Underwater Surveys", "subtopic": "CSM / Continuous Survey", "tid": "MUM-2026-06-3355", "tray": "review", "candidates": [ { "answer_id": "CSM-214-001", "score": 0.6691213250160217, "sibling_score": 0.6691213250160217, "answer_score": 0.3721844047307968, "sibling_qid": "MUM-2026-09-3975-Q016", "sibling_text": "what is csm survey what is other than csm survey", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "What CSM is, and why it is called “continuous”", "cross_family": false }, { "answer_id": "CSM-214-002", "score": 0.6162242889404297, "sibling_score": 0.6162242889404297, "answer_score": 0.3581048935651779, "sibling_qid": "KOC-2023-07-0202-Q002", "sibling_text": "what is csm survey which all are not included in csm", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "What is NOT included in CSM", "cross_family": false }, { "answer_id": "CSAS-SURV-005", "score": 0.5836750864982605, "sibling_score": 0.5836750864982605, "answer_score": null, "sibling_qid": "MUM-2022-08-2143-Q002", "sibling_text": "csm survey details salient features", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Continuous Survey of Machinery (CSM)", "cross_family": false } ] }, { "qid": "MUM-2026-06-3355-Q006", "text": "What if white metal squeezed out , how to proceed?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "White Metal & Material", "tid": "MUM-2026-06-3355", "tray": "new", "candidates": [ { "answer_id": "WMAT-170-003", "score": 0.47751039266586304, "sibling_score": 0.47751039266586304, "answer_score": null, "sibling_qid": "KOL-2018-04-3143-Q003", "sibling_text": "bottom end bearing thin shell taken out for survey from top it looks fine how do we determine white metal is correctly bonded", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Thin-shell and thick-shell bearings: design, advantages, developments", "cross_family": false }, { "answer_id": "WMAT-170-001", "score": 0.4607774019241333, "sibling_score": 0.4607774019241333, "answer_score": null, "sibling_qid": "CHE-2025-08-0207-Q003", "sibling_text": "white metal and purpose", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "White metal (Babbitt): composition, purpose, properties, layer thickness", "cross_family": false }, { "answer_id": "CORR-DEZ-001", "score": 0.3342535987496376, "sibling_score": null, "answer_score": 0.3342535987496376, "sibling_qid": "", "sibling_text": "what is dezincification selective leaching dealloying of zinc from copper zinc brasses a weak copper rich sponge is left behind shape retained strength lost deceptive failure by porosity seepage or crumbling under pressure", "sibling_family": "", "via": "answer_title", "answer_title": "What is dezincification?", "cross_family": false } ] }, { "qid": "MUM-2026-06-3355-Q008", "text": "What are limitations?", "family": "NDT & Material Testing", "subtopic": "NDT Methods (MPI/DPT/UT/RT)", "tid": "MUM-2026-06-3355", "tray": "new", "candidates": [ { "answer_id": "ENG-DERATE-003", "score": 0.6169627904891968, "sibling_score": 0.6169627904891968, "answer_score": null, "sibling_qid": "KOL-2017-03-1281-Q005", "sibling_text": "what were the limits", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What limits or restrictions apply after derating, and why is performance taken at ~80–85% MCR?", "cross_family": true }, { "answer_id": "BCME-003", "score": 0.6064853072166443, "sibling_score": 0.6064853072166443, "answer_score": null, "sibling_qid": "MUM-2023-12-1068-Q008", "sibling_text": "what are the limiters and why are they provided", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Bridge-control safeties, limiters, ECS load/speed sensing and control-panel checks", "cross_family": true }, { "answer_id": "CLC-CIV-B-003", "score": 0.5697225332260132, "sibling_score": 0.5697225332260132, "answer_score": null, "sibling_qid": "KOL-2025-06-0955-Q006", "sibling_text": "limitation clause", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "LLMC: purpose, scope and limitation of maritime claims", "cross_family": true } ] }, { "qid": "MUM-2026-06-3355-Q010", "text": "How to check number of links in anchor chain?", "family": "Auxiliary Equipment", "subtopic": "Anchor / Anchor Chain", "tid": "MUM-2026-06-3355", "tray": "new", "candidates": [ { "answer_id": "ANCH-CHN-A-003", "score": 0.5993990898132324, "sibling_score": 0.5993990898132324, "answer_score": null, "sibling_qid": "MUM-2026-06-3541-Q008", "sibling_text": "anchor chain length how to calculate", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Equipment Number & how cable length is decided", "cross_family": false }, { "answer_id": "ANCHR-B-002", "score": 0.5654929280281067, "sibling_score": 0.5654929280281067, "answer_score": null, "sibling_qid": "MUM-2026-09-3913-Q007", "sibling_text": "anchor chain complete check", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Anchor & cable survey in dry dock — the systematic inspection", "cross_family": false }, { "answer_id": "ANCHR-B-001", "score": 0.5445936322212219, "sibling_score": 0.5445936322212219, "answer_score": null, "sibling_qid": "KOL-2023-05-3613-Q005", "sibling_text": "4 anchor chain calibration means all inspection with part name where u will measure dia don t say weakest three chain link say all parts lentg also asked 27 5m", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Chain gauging & wear / renewal limits", "cross_family": false } ] }, { "qid": "MUM-2026-06-3355-Q014", "text": "Gauging why is it done and name of tool?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Bottom End Bearing", "tid": "MUM-2026-06-3355", "tray": "new", "candidates": [ { "answer_id": "BEB-B-003", "score": 0.608654260635376, "sibling_score": 0.608654260635376, "answer_score": null, "sibling_qid": "KOL-2025-07-3818-Q013", "sibling_text": "what is the tool name", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bottom End Bearing — Construction & Significance", "cross_family": false }, { "answer_id": "CYL-LINER-P01-002", "score": 0.5254037380218506, "sibling_score": 0.5254037380218506, "answer_score": null, "sibling_qid": "MUM-2022-07-2135-Q007", "sibling_text": "what tool", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Getting true readings: tool, position and temperature", "cross_family": true }, { "answer_id": "EXHV-080-BF37-003", "score": 0.48466384410858154, "sibling_score": 0.48466384410858154, "answer_score": null, "sibling_qid": "MUM-2025-02-2270-Q007", "sibling_text": "which tools used", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "What clearances are taken after overhaul, how do you check seat and spindle, and the maximum allowances?", "cross_family": true } ] }, { "qid": "MUM-2026-06-3355-Q015", "text": "What is reverse osmosis and membrane material. Type of filter in the distilled water production?", "family": "Cargo Ops - Gas Carriers", "subtopic": "Independent Tank Type", "tid": "MUM-2026-06-3355", "tray": "review", "candidates": [ { "answer_id": "FWG-RO-006", "score": 0.6575770974159241, "sibling_score": 0.6575770974159241, "answer_score": 0.5176705420017242, "sibling_qid": "KOC-2026-08-2117-Q001", "sibling_text": "reverse osmosis", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Explain reverse osmosis — the principle and flow, pre- and post-treatment, and what chemical is dosed before the RO.", "cross_family": true }, { "answer_id": "RVSG-213-001", "score": 0.6248922348022461, "sibling_score": 0.6248922348022461, "answer_score": null, "sibling_qid": "KOL-2022-10-1713-Q005", "sibling_text": "rotary vane system and vane material rao difference bw osmosis n reverse osmosis", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Construction, main parts, materials & vane fitment", "cross_family": true }, { "answer_id": "GC-TANK-004", "score": 0.5688011646270752, "sibling_score": 0.5688011646270752, "answer_score": null, "sibling_qid": "CHE-2025-09-0300-Q007", "sibling_text": "type of tank and membrane material", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Gas-carrier cargo tank construction: materials, insulation, fixing and tank safeties", "cross_family": false } ] }, { "qid": "MUM-2026-06-3356-Q002", "text": "Liner Defects?", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "MUM-2026-06-3356", "tray": "new", "candidates": [ { "answer_id": "CYL-LINER-P03-002", "score": 0.6388364434242249, "sibling_score": 0.6388364434242249, "answer_score": null, "sibling_qid": "KOL-2023-09-1936-Q003", "sibling_text": "cracks in liner", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Detecting and confirming a cracked or leaking liner — and pinning the unit", "cross_family": false }, { "answer_id": "CYL-LINER-P03-007", "score": 0.6171528697013855, "sibling_score": 0.6171528697013855, "answer_score": null, "sibling_qid": "KOL-2019-11-3289-Q003", "sibling_text": "checks on liner", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Cylinder liner checks at overhaul, decarb and under-piston inspection", "cross_family": false }, { "answer_id": "CYL-LINER-P02-009", "score": 0.6071906089782715, "sibling_score": 0.6071906089782715, "answer_score": null, "sibling_qid": "KOL-2021-08-1621-Q005", "sibling_text": "liner has ridges causes and remedy", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L9 · T044-PART_02-G009High", "cross_family": false } ] }, { "qid": "MUM-2026-06-3356-Q007", "text": "Types of telemotor..? What type on your Ship, Explain Electro Hydraulic telemotor?", "family": "Steering Gear & Hydraulics", "subtopic": "Telemotor", "tid": "MUM-2026-06-3356", "tray": "review", "candidates": [ { "answer_id": "TLM-218-002", "score": 0.6834287047386169, "sibling_score": 0.6834287047386169, "answer_score": 0.539388808608055, "sibling_qid": "KOL-2020-03-1531-Q002", "sibling_text": "telemotor type of motor working", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "What is a telemotor — transmitter / receiver types and working", "cross_family": false }, { "answer_id": "STEER-055-A-001", "score": 0.6809609532356262, "sibling_score": 0.6809609532356262, "answer_score": null, "sibling_qid": "KOL-2022-03-1671-Q005", "sibling_text": "plus cross ward leonard all hydraulic and electro hydraulic in brief", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Steering gear — construction, types and working", "cross_family": false }, { "answer_id": "SG-RAM-003", "score": 0.6628537178039551, "sibling_score": 0.6628537178039551, "answer_score": 0.4802425503730774, "sibling_qid": "KOL-2022-11-1718-Q004", "sibling_text": "4 ram steering gear working electric telemoter working bidirectional control valve working", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Four-ram steering gear — bridge-to-rudder working, 100% capacity not redundancy, and hydraulic locking", "cross_family": false } ] }, { "qid": "MUM-2026-06-3357-Q001", "text": "college, different engines sailed after class 4?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-06-3357", "tray": "new", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.59428471326828, "sibling_score": 0.59428471326828, "answer_score": null, "sibling_qid": "CHE-2026-03-0250-Q003", "sibling_text": "type of engines sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.5540697574615479, "sibling_score": 0.5540697574615479, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q001", "sibling_text": "type of ship sailed and engines details", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ETP-344-P03-001", "score": 0.5387181639671326, "sibling_score": 0.5387181639671326, "answer_score": null, "sibling_qid": "MUM-2026-06-3492-Q002", "sibling_text": "which type of engines worked on", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false } ] }, { "qid": "MUM-2026-06-3357-Q007", "text": "what is torque rush in terms of engine tie rods?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Tie Rod / Tie Bolt", "tid": "MUM-2026-06-3357", "tray": "new", "candidates": [ { "answer_id": "TBR-TT-P02-001", "score": 0.6050497889518738, "sibling_score": 0.6050497889518738, "answer_score": 0.3926171243190765, "sibling_qid": "MUM-2026-03-1294-Q006", "sibling_text": "the main engine the tie rods are pre stressed or pretensioned at the time of assembly what do you understand by pretensioning or pre stressing the tie rod", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Tie rod tightening / hydraulic tensioning procedure", "cross_family": false }, { "answer_id": "TR-TB-PA-004", "score": 0.5423039197921753, "sibling_score": 0.5423039197921753, "answer_score": null, "sibling_qid": "CHE-2025-08-0201-Q006", "sibling_text": "tie rods how many in ur engine why twin tie rod can it be used as redundancy", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Arrangement, number and position; twin tie rods and MC/MC-C developments", "cross_family": false }, { "answer_id": "TR-TB-PA-001", "score": 0.5348988771438599, "sibling_score": 0.5348988771438599, "answer_score": null, "sibling_qid": "KOL-2018-08-1409-Q002", "sibling_text": "purpose of tie rod why u should kept in compressed engine parts", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Function of tie rods and the firing-load path", "cross_family": false } ] }, { "qid": "MUM-2026-06-3357-Q008", "text": "Jack bolts Sulzer engine ?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "VIT Mechanism", "tid": "MUM-2026-06-3357", "tray": "new", "candidates": [ { "answer_id": "THR-BRG-A-001", "score": 0.58891761302948, "sibling_score": 0.58891761302948, "answer_score": null, "sibling_qid": "KOC-2023-03-1811-Q007", "sibling_text": "thrust bearing clearance in man and sulzer in sulzer where do you place hydraulic jack", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you check, measure, limit and adjust main-engine thrust bearing clearance?", "cross_family": true }, { "answer_id": "VIT-MECH-C-002", "score": 0.5649036765098572, "sibling_score": 0.5649036765098572, "answer_score": null, "sibling_qid": "KOL-2019-08-1480-Q003", "sibling_text": "sulzer engine vit", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Sulzer RTA VIT — suction- and spill-valve controlled injection", "cross_family": false }, { "answer_id": "FCL-P03-003", "score": 0.561536967754364, "sibling_score": 0.561536967754364, "answer_score": null, "sibling_qid": "KOL-2019-12-3300-Q003", "sibling_text": "sulzer engine fuel timing", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Sulzer / RTA fuel pump timing and lead", "cross_family": false } ] }, { "qid": "MUM-2026-06-3358-Q001", "text": "What is CII ?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "CII / Carbon Intensity", "tid": "MUM-2026-06-3358", "tray": "new", "candidates": [ { "answer_id": "CII-P01-001", "score": 0.6222473382949829, "sibling_score": 0.6222473382949829, "answer_score": 0.3176389902830124, "sibling_qid": "KOL-2025-07-0978-Q009", "sibling_text": "what is cii", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is CII and what is its purpose?", "cross_family": false }, { "answer_id": "EECS-002", "score": 0.27058603912591933, "sibling_score": null, "answer_score": 0.27058603912591933, "sibling_qid": "", "sibling_text": "02 differentiate eexi and cii eexi design technical one time fixed by the ship s build cii operational annual from actual fuel and dcs data", "sibling_family": "", "via": "answer_title", "answer_title": "02. Differentiate EEXI and CII", "cross_family": false }, { "answer_id": "GFI-572-003", "score": 0.26354083716869353, "sibling_score": null, "answer_score": 0.26354083716869353, "sibling_qid": "", "sibling_text": "relation between cii and gfi cii operational carbon intensity rating a e in force 1 january 2023 gfi fuel ghg intensity standard not yet in force cii co2 only tank to wake per transport work grams co2 per dwt nautical mile gfi co2 equivalent multi gas well to wake per energy gco2eq mj", "sibling_family": "", "via": "answer_title", "answer_title": "Relation between CII and GFI", "cross_family": false } ] }, { "qid": "MUM-2026-06-3360-Q008", "text": "Interim SMS and audit?", "family": "ISM Code", "subtopic": "ISM / SMS / Audit", "tid": "MUM-2026-06-3360", "tray": "new", "candidates": [ { "answer_id": "ISM-SMCDOC-A-002", "score": 0.5783427953720093, "sibling_score": 0.5783427953720093, "answer_score": null, "sibling_qid": "KOC-2025-01-0512-Q005", "sibling_text": "interim doc interim smc who is eligible for interim smc audit", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Interim DOC — when, why, how, and how long", "cross_family": false }, { "answer_id": "ISM-AUD-P02-004", "score": 0.559078574180603, "sibling_score": 0.559078574180603, "answer_score": null, "sibling_qid": "KOC-2024-05-0345-Q004", "sibling_text": "how do you do intermediate survey of sms", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "SMS contents, manuals, documents and drill records onboard", "cross_family": false }, { "answer_id": "ISM-SMC-B-002", "score": 0.5320802330970764, "sibling_score": 0.5320802330970764, "answer_score": 0.3424425646662712, "sibling_qid": "MUM-2026-08-3855-Q006", "sibling_text": "what is the difference between between interim initial smc audit", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Interim SMC — occasions, procedure and validity", "cross_family": false } ] }, { "qid": "MUM-2026-06-3361-Q005", "text": "Type of ship sailing ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-06-3361", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8274808526039124, "sibling_score": 0.8274808526039124, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8265291452407837, "sibling_score": 0.8265291452407837, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "COT-01", "score": 0.8049832582473755, "sibling_score": 0.8049832582473755, "answer_score": null, "sibling_qid": "KOC-2026-04-0892-Q003", "sibling_text": "type of ship sailed tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Oil-tanker types, definitions and cargo capability", "cross_family": false } ] }, { "qid": "MUM-2026-06-3361-Q010", "text": "Dual load line requirement ?", "family": "Load Line Convention", "subtopic": "", "tid": "MUM-2026-06-3361", "tray": "new", "candidates": [ { "answer_id": "LL-CONV-P06-002", "score": 0.6491685509681702, "sibling_score": 0.6491685509681702, "answer_score": 0.41913460940122604, "sibling_qid": "MUM-2026-05-3337-Q004", "sibling_text": "multiple load lines", "sibling_family": "Load Line Convention", "via": "sibling", "answer_title": "LLC-P06-02 - Types of load lines: standard, seasonal, timber, WNA and multiple load lines", "cross_family": false }, { "answer_id": "LL-CONV-P06-004", "score": 0.5927870869636536, "sibling_score": 0.5927870869636536, "answer_score": 0.40457766652107235, "sibling_qid": "KOC-2026-05-0039-Q003", "sibling_text": "load line requirement", "sibling_family": "", "via": "sibling", "answer_title": "LLC-P06-04 - General load-line requirement, marks, stability link and overloading consequences", "cross_family": false }, { "answer_id": "LLC-SURV-P01-001", "score": 0.5865229368209839, "sibling_score": 0.5865229368209839, "answer_score": null, "sibling_qid": "MUM-2025-05-0258-Q003", "sibling_text": "load line preparation as 2 e", "sibling_family": "", "via": "sibling", "answer_title": "Load line survey preparation as Second Engineer: engine-room scope, machinery openings, tanks/vents, valves and overboard checks", "cross_family": false } ] }, { "qid": "MUM-2026-06-3362-Q001", "text": "Introduction status of other function ?", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-06-3362", "tray": "new", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.5023335814476013, "sibling_score": 0.5023335814476013, "answer_score": null, "sibling_qid": "MUM-2026-05-3187-Q001", "sibling_text": "status of other orals and written", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": true }, { "answer_id": "IMO-CODES-P03-002", "score": 0.4947671592235565, "sibling_score": 0.4947671592235565, "answer_score": null, "sibling_qid": "MUM-2026-03-0815-Q003", "sibling_text": "which function", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": true }, { "answer_id": "AVR-EXC-B-001", "score": 0.4694746136665344, "sibling_score": 0.4694746136665344, "answer_score": null, "sibling_qid": "KOC-2025-12-1676-Q004", "sibling_text": "explain status avr", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Explain the AVR working principle and control-loop operation.", "cross_family": true } ] }, { "qid": "MUM-2026-06-3363-Q001", "text": "How many attempts Status of other function ? Pre sea institute Internal asked me that only one function remaining?", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2026-06-3363", "tray": "new", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.4581791162490845, "sibling_score": 0.4581791162490845, "answer_score": null, "sibling_qid": "MUM-2026-03-0866-Q001", "sibling_text": "coc attempt internal sirish sir external vishwanathan iyer sir started with what function you are applying how many ships type of ships you did after class 4 pre sea from where how many written cleared what about other functions", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": true }, { "answer_id": "IMO-CODES-P03-002", "score": 0.4574386477470398, "sibling_score": 0.4574386477470398, "answer_score": null, "sibling_qid": "MUM-2026-03-0815-Q003", "sibling_text": "which function", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": false }, { "answer_id": "BFS-257-010", "score": 0.44761013984680176, "sibling_score": 0.44761013984680176, "answer_score": null, "sibling_qid": "MUM-2025-05-0277-Q022", "sibling_text": "how to confirm if it s done properly got function 6", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "How to confirm soot blowing has been carried out effectively", "cross_family": true } ] }, { "qid": "MUM-2026-06-3363-Q005", "text": "Open and closed differences and eg and cross que?", "family": "Heat Exchangers & Coolers", "subtopic": "Closed Loop / Open Loop Cooling", "tid": "MUM-2026-06-3363", "tray": "new", "candidates": [ { "answer_id": "OWS-15PPM-006", "score": 0.5221728086471558, "sibling_score": 0.5221728086471558, "answer_score": null, "sibling_qid": "KOC-2022-02-1172-Q010", "sibling_text": "odme diff bw both", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": true }, { "answer_id": "AIR-GAP-003", "score": 0.5146517157554626, "sibling_score": 0.5146517157554626, "answer_score": null, "sibling_qid": "KOC-2026-04-1743-Q005", "sibling_text": "air gap and cross like reason if gap reduced and increased", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "AG-3 — Effects, causes, indications and correction: high, low, uneven, contaminated gap", "cross_family": true }, { "answer_id": "EECS-001", "score": 0.5022689700126648, "sibling_score": 0.5022689700126648, "answer_score": null, "sibling_qid": "MUM-2024-09-0203-Q002", "sibling_text": "eexi eedi differences", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "01. Differentiate EEDI and EEXI — formula and units of each", "cross_family": true } ] }, { "qid": "MUM-2026-06-3364-Q001", "text": "How down riser and uprisers are differentiated?", "family": "Boilers - Operations & Firing", "subtopic": "Burner Type", "tid": "MUM-2026-06-3364", "tray": "new", "candidates": [ { "answer_id": "KEEL-FRM-B-003", "score": 0.3600848913192749, "sibling_score": 0.3600848913192749, "answer_score": 0.25736044347286224, "sibling_qid": "KOL-2020-06-0412-Q003", "sibling_text": "rise of floor from where it rises", "sibling_family": "", "via": "sibling", "answer_title": "Rise of floor, camber, deadrise & hull-form terms", "cross_family": false }, { "answer_id": "BCFS-004", "score": 0.35408392548561096, "sibling_score": 0.35408392548561096, "answer_score": 0.2916079550981521, "sibling_qid": "MUM-2026-06-3491-Q002", "sibling_text": "riser and downcomer tube", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Boiler forced circulation, risers, downcomers and screen tubes", "cross_family": true }, { "answer_id": "FLR-WFB-P01-001", "score": 0.30199846625328064, "sibling_score": 0.30199846625328064, "answer_score": null, "sibling_qid": "MUM-2022-11-0069-Q003", "sibling_text": "type of floor difference between them", "sibling_family": "", "via": "sibling", "answer_title": "Floors — what they are, the types, and where they are fitted", "cross_family": false } ] }, { "qid": "MUM-2026-06-3364-Q006", "text": "Status of written and oral ?", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-06-3364", "tray": "review", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.7111237049102783, "sibling_score": 0.7111237049102783, "answer_score": null, "sibling_qid": "MUM-2026-05-3187-Q001", "sibling_text": "status of other orals and written", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": true }, { "answer_id": "EXHV-P01-001", "score": 0.5969938635826111, "sibling_score": 0.5969938635826111, "answer_score": null, "sibling_qid": "MUM-2026-05-2995-Q001", "sibling_text": "written and oral status type of ship and company", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.4785453677177429, "sibling_score": 0.4785453677177429, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q001", "sibling_text": "type of vessel engine make written and oral status", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "MUM-2026-06-3364-Q010", "text": "T/C emergency lubrication ?", "family": "Turbocharger", "subtopic": "TC Bearing", "tid": "MUM-2026-06-3364", "tray": "review", "candidates": [ { "answer_id": "CYL-LUB-B-006", "score": 0.6887497305870056, "sibling_score": 0.6887497305870056, "answer_score": 0.4765612572431564, "sibling_qid": "KOC-2026-08-2111-Q005", "sibling_text": "when will be give the emergency lubrication", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Lubricator / CCU failure and emergency cylinder-oil supply", "cross_family": false }, { "answer_id": "TC-OVHL-001", "score": 0.661216676235199, "sibling_score": 0.661216676235199, "answer_score": null, "sibling_qid": "MUM-2025-12-1227-Q008", "sibling_text": "tc lubrication maintenance everything abt t c", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Main-engine turbocharger overhaul — procedure and post-overhaul checks", "cross_family": false }, { "answer_id": "TURBO-CS-P02-001", "score": 0.6011744141578674, "sibling_score": 0.6011744141578674, "answer_score": null, "sibling_qid": "CHE-2026-05-0605-Q003", "sibling_text": "tc types and how bearing lubricated", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharger bearings — types and lubrication", "cross_family": false } ] }, { "qid": "MUM-2026-06-3364-Q014", "text": "Explain both test p-alkalinity and T-alkalinity and difference?", "family": "Boilers - Safety & Survey", "subtopic": "Water Test (Chloride / pH / Phosphate)", "tid": "MUM-2026-06-3364", "tray": "review", "candidates": [ { "answer_id": "BWT-B-001", "score": 0.7522664666175842, "sibling_score": 0.7522664666175842, "answer_score": 0.5338855892419815, "sibling_qid": "MUM-2025-07-2331-Q004", "sibling_text": "why p and t alkalinity separate test we do", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Why are P, T and M alkalinity tests done in boiler water, and how are the results read?", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.7092006206512451, "sibling_score": 0.7092006206512451, "answer_score": 0.3850272595882416, "sibling_qid": "KOL-2018-06-1387-Q004", "sibling_text": "p alk and t alk test why we do", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "LO-TEST-P01-004", "score": 0.43975546956062317, "sibling_score": null, "answer_score": 0.43975546956062317, "sibling_qid": "", "sibling_text": "tbn bn tan san and the sae grade tbn bn is reserve alkalinity in mg koh g it neutralises acids from fuel sulphur and oxidation and depletes in service base number may be reported by different methods commonly astm d2896 perchloric acid often higher or astm d4739 hydrochloric acid often lower both cover new and used oil do not compare or trend across methods use the ship s lab method and the maker ", "sibling_family": "", "via": "answer_title", "answer_title": "TBN, BN, TAN, SAN and the SAE grade", "cross_family": false } ] }, { "qid": "MUM-2026-06-3365-Q001", "text": "Sliding foot on boiler ?", "family": "Boilers - Construction & Components", "subtopic": "Boiler Shell / Furnace Construction", "tid": "MUM-2026-06-3365", "tray": "new", "candidates": [ { "answer_id": "BLR-TUBE-P02-001", "score": 0.532073438167572, "sibling_score": 0.532073438167572, "answer_score": null, "sibling_qid": "MUM-2026-03-0999-Q009", "sibling_text": "boiler tube leaking action as 2e", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Identifying a boiler tube leak and finding the leaking tube", "cross_family": false }, { "answer_id": "BLR-TUBE-P01-002", "score": 0.523780107498169, "sibling_score": 0.523780107498169, "answer_score": null, "sibling_qid": "CHE-2026-05-0614-Q005", "sibling_text": "stay tubes in boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "03. Types, functions and arrangement of boiler tubes", "cross_family": false }, { "answer_id": "SH-332-005", "score": 0.5150701403617859, "sibling_score": 0.5150701403617859, "answer_score": null, "sibling_qid": "KOL-2025-07-1999-Q005", "sibling_text": "attemperator in boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Desuperheater / attemperator: what, why, and superheat control", "cross_family": false } ] }, { "qid": "MUM-2026-06-3365-Q002", "text": "What is difference between Sliding foot of Boiler and Heat Exchanger ?", "family": "Boilers - Construction & Components", "subtopic": "Hull Mounting / Securing", "tid": "MUM-2026-06-3365", "tray": "new", "candidates": [ { "answer_id": "BLR-TUBE-P01-002", "score": 0.5693754553794861, "sibling_score": 0.5693754553794861, "answer_score": null, "sibling_qid": "CHE-2026-09-3911-Q002", "sibling_text": "smoke tube and water tube boiler difference and operation", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "03. Types, functions and arrangement of boiler tubes", "cross_family": false }, { "answer_id": "BLR-DRUM-002", "score": 0.5581870675086975, "sibling_score": 0.5581870675086975, "answer_score": null, "sibling_qid": "MUM-2026-06-3660-Q005", "sibling_text": "boiler type and boiler construction", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Steam-drum construction, material and plate manufacture, and construction-stage tests", "cross_family": false }, { "answer_id": "BCFS-003", "score": 0.5545077919960022, "sibling_score": 0.5545077919960022, "answer_score": 0.4410925924777985, "sibling_qid": "KOL-2024-02-1771-Q004", "sibling_text": "closed feed and open feed system in boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Open-feed and closed-feed systems, and checking boiler feed-water flow or circulation-pump line-up", "cross_family": false } ] }, { "qid": "MUM-2026-06-3365-Q011", "text": "Tube Plug material ?", "family": "Drydock & Underwater Surveys", "subtopic": "Bottom Plug / Bedrock", "tid": "MUM-2026-06-3365", "tray": "new", "candidates": [ { "answer_id": "BLR-TUBE-P02-002", "score": 0.5573705434799194, "sibling_score": 0.5573705434799194, "answer_score": 0.40104302018880844, "sibling_qid": "KOL-2019-06-3246-Q005", "sibling_text": "tube plugging process in smoke tube boiler and material of plug", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Plugging a leaking boiler tube (temporary arrest)", "cross_family": true }, { "answer_id": "PIPE-MAT-002", "score": 0.5530148148536682, "sibling_score": 0.5530148148536682, "answer_score": null, "sibling_qid": "MUM-2023-04-2168-Q005", "sibling_text": "material of sw pipes", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Material and coating for sea-water / engine-room pipes", "cross_family": true }, { "answer_id": "STS-P02-006", "score": 0.536495566368103, "sibling_score": 0.536495566368103, "answer_score": null, "sibling_qid": "KOL-2025-03-1798-Q006", "sibling_text": "stern tube liner repair i answered we can use ceramic filler he crossed how", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "STS-P02-06 - Stern tube seals, integrity test, sleeve wasting and afloat repair", "cross_family": false } ] }, { "qid": "MUM-2026-06-3366-Q001", "text": "Type of Engine ?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-06-3366", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.8005295395851135, "sibling_score": 0.8005295395851135, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.7929258942604065, "sibling_score": 0.7929258942604065, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-001", "score": 0.4521873891353607, "sibling_score": null, "answer_score": 0.4521873891353607, "sibling_qid": "", "sibling_text": "1 turbocharger type main engine vs generator engine compressor is centrifugal in both cases only the turbine type differs large slow speed main engine axial flow turbine single stage constant pressure system", "sibling_family": "", "via": "answer_title", "answer_title": "1. Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "MUM-2026-06-3366-Q003", "text": "Why Chocks are used ?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Bedplate / Chocks / HDB", "tid": "MUM-2026-06-3366", "tray": "new", "candidates": [ { "answer_id": "CHK-330-001", "score": 0.5985106825828552, "sibling_score": 0.5985106825828552, "answer_score": 0.37558175176382064, "sibling_qid": "CHE-2026-08-0671-Q009", "sibling_text": "function of chocks", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What is the purpose and function of main engine chocks?", "cross_family": false }, { "answer_id": "BED-CHOCK-002", "score": 0.588888943195343, "sibling_score": 0.588888943195343, "answer_score": null, "sibling_qid": "MUM-2025-11-1212-Q005", "sibling_text": "why chocks are used", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What is the function of main-engine chocks?", "cross_family": false }, { "answer_id": "CHK-RM-001", "score": 0.5715048909187317, "sibling_score": 0.5715048909187317, "answer_score": 0.3865874052047729, "sibling_qid": "KOL-2025-05-3783-Q007", "sibling_text": "function of chock", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What are chocks? Function, types, where fitted and how placed — which have the biggest area, and how does the bedplate connect to the hull?", "cross_family": false } ] }, { "qid": "MUM-2026-06-3366-Q004", "text": "Why resilient mountings are there on AE ?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE Resilient Chock", "tid": "MUM-2026-06-3366", "tray": "new", "candidates": [ { "answer_id": "EMD-MEAE-001", "score": 0.3813934326171875, "sibling_score": 0.3813934326171875, "answer_score": 0.2590824097394943, "sibling_qid": "MUM-2026-05-3238-Q001", "sibling_text": "foundation difference in ae and me mountings", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "1. ME vs AE foundation — rigid chocking against resilient mounting", "cross_family": true }, { "answer_id": "AEDEC-291-001", "score": 0.37057211995124817, "sibling_score": 0.37057211995124817, "answer_score": null, "sibling_qid": "CHE-2026-03-0486-Q009", "sibling_text": "maintenance done on ae", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "1. AE decarb / overhaul — preparation and full procedure", "cross_family": false }, { "answer_id": "STAB-GZ-P04-001", "score": 0.3229982852935791, "sibling_score": 0.3229982852935791, "answer_score": null, "sibling_qid": "KOL-2017-05-0089-Q003", "sibling_text": "reserve dynamic stability for rolling", "sibling_family": "", "via": "sibling", "answer_title": "Dynamic stability — the area under the GZ curve", "cross_family": false } ] }, { "qid": "MUM-2026-06-3367-Q003", "text": "EGB and EGE difference ?", "family": "Boilers - Operations & Firing", "subtopic": "Uptake Fire", "tid": "MUM-2026-06-3367", "tray": "new", "candidates": [ { "answer_id": "UPT-FIRE-003", "score": 0.4931349456310272, "sibling_score": 0.4931349456310272, "answer_score": null, "sibling_qid": "KOC-2024-12-1883-Q004", "sibling_text": "egb fire as 2e", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Fire in the exhaust gas boiler or economiser — actions and instructions to the duty engineers", "cross_family": false }, { "answer_id": "EECS-001", "score": 0.44444870948791504, "sibling_score": 0.44444870948791504, "answer_score": null, "sibling_qid": "MUM-2024-09-0203-Q002", "sibling_text": "eexi eedi differences", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "01. Differentiate EEDI and EEXI — formula and units of each", "cross_family": true }, { "answer_id": "EEDI-C-002", "score": 0.43197253346443176, "sibling_score": 0.43197253346443176, "answer_score": 0.3330864280462265, "sibling_qid": "KOC-2025-07-0630-Q006", "sibling_text": "eedi eeoi difference", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "EEDI versus EEOI — what is the difference?", "cross_family": true } ] }, { "qid": "MUM-2026-06-3367-Q005", "text": "Fame (latest iso) old iso standard name ?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Quality / CCAI", "tid": "MUM-2026-06-3367", "tray": "review", "candidates": [ { "answer_id": "FQCC-583-A-002", "score": 0.6666663885116577, "sibling_score": 0.6666663885116577, "answer_score": 0.38363359570503236, "sibling_qid": "MUM-2026-06-3553-Q007", "sibling_text": "name of new iso standards", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "ISO 8217 — the standard, and what changed from 2017 to 2024", "cross_family": false }, { "answer_id": "FQCC-583-A-004", "score": 0.5444663763046265, "sibling_score": 0.5444663763046265, "answer_score": null, "sibling_qid": "KOL-2023-09-1936-Q006", "sibling_text": "what is fame in iso 8217", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "FAME — what it is, why it is blended, and the limits", "cross_family": false }, { "answer_id": "FQCC-583-A-006", "score": 0.4891398549079895, "sibling_score": 0.4891398549079895, "answer_score": null, "sibling_qid": "KOL-2018-01-1348-Q004", "sibling_text": "iso standards values for hfo particular about catfines limit", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Cat fines — origin, limits, damage and removal", "cross_family": false } ] }, { "qid": "MUM-2026-06-3367-Q008", "text": "Difference between schedule ?", "family": "Workshop & Welding", "subtopic": "Pipe Pressure Test", "tid": "MUM-2026-06-3367", "tray": "new", "candidates": [ { "answer_id": "PIPE-MAT-004", "score": 0.5732253789901733, "sibling_score": 0.5732253789901733, "answer_score": 0.3155269369482994, "sibling_qid": "MUM-2026-06-3389-Q002", "sibling_text": "what is schedule in pipe", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Pipe schedule and its relation to thickness, ID, OD", "cross_family": false }, { "answer_id": "SYNC-ASYNC-A-001", "score": 0.5102359652519226, "sibling_score": 0.5102359652519226, "answer_score": null, "sibling_qid": "KOL-2022-03-2543-Q002", "sibling_text": "difference b w synchronous and im", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Synchronous motor vs induction/asynchronous motor", "cross_family": true }, { "answer_id": "CHEM-PA-003", "score": 0.49020707607269287, "sibling_score": 0.49020707607269287, "answer_score": null, "sibling_qid": "KOC-2024-03-0327-Q003", "sibling_text": "difference between this plan and plan in anx 1", "sibling_family": "MARPOL - Annex II (NLS)", "via": "sibling", "answer_title": "The Procedures & Arrangements (P&A) Manual", "cross_family": true } ] }, { "qid": "MUM-2026-06-3368-Q001", "text": "Type of engine. What S stands for?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "", "tid": "MUM-2026-06-3368", "tray": "review", "candidates": [ { "answer_id": "EGTP-P02-012", "score": 0.6874421238899231, "sibling_score": 0.6874421238899231, "answer_score": null, "sibling_qid": "MUM-2026-07-3720-Q002", "sibling_text": "what is s in engine nomenclature advantages", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Stroke, Bore Ratio and Super-Long Stroke", "cross_family": false }, { "answer_id": "ENG-NOM-006", "score": 0.5930392146110535, "sibling_score": 0.5930392146110535, "answer_score": 0.3697511672973633, "sibling_qid": "KOL-2021-05-1903-Q001", "sibling_text": "type of engine smc c meaning surge line turbocharger matching", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Short-form asks: SMC-C, LMC, and ME vs MC quickly", "cross_family": false }, { "answer_id": "MCC-MEB-P01-001", "score": 0.572221040725708, "sibling_score": 0.572221040725708, "answer_score": null, "sibling_qid": "KOL-2021-10-1628-Q001", "sibling_text": "type of engines done smc c modifications advantages further engine improvements in me type engines", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "MC-C (\"Compact\") engine — design and the main constructional differences from MC", "cross_family": false } ] }, { "qid": "MUM-2026-06-3368-Q002", "text": "What is angle encoder and working. What if one angle encoder fails?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Angle Encoder", "tid": "MUM-2026-06-3368", "tray": "review", "candidates": [ { "answer_id": "ANG-ENC-005", "score": 0.7109947204589844, "sibling_score": 0.7109947204589844, "answer_score": 0.4690105557441711, "sibling_qid": "MUM-2026-03-2660-Q001", "sibling_text": "angle encoder and backup for angle encoder", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Encoder failure: redundancy, offset, backup and emergency starting", "cross_family": false }, { "answer_id": "ANG-ENC-003", "score": 0.7063809037208557, "sibling_score": 0.7063809037208557, "answer_score": 0.42363643050193783, "sibling_qid": "KOC-2023-01-0977-Q002", "sibling_text": "angle encoder working", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Working principle: sensing crank angle, speed and direction", "cross_family": false }, { "answer_id": "ANG-ENC-004", "score": 0.6660222411155701, "sibling_score": 0.6660222411155701, "answer_score": null, "sibling_qid": "CHE-2025-08-0411-Q007", "sibling_text": "angle encoders what checks", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Checks, testing, calibration and maintenance", "cross_family": false } ] }, { "qid": "MUM-2026-06-3368-Q004", "text": "What is difference Between exhaust gas boiler and economiser ?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2026-06-3368", "tray": "new", "candidates": [ { "answer_id": "ECON-EGB-002", "score": 0.5793429613113403, "sibling_score": 0.5793429613113403, "answer_score": 0.5077045381069183, "sibling_qid": "KOL-2022-09-1708-Q003", "sibling_text": "economiser y used superheated steam", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Purpose, efficiency, heat recovery, turn ratio, steam quality & back-pressure", "cross_family": true }, { "answer_id": "CMPB-561-003", "score": 0.5615224838256836, "sibling_score": 0.5615224838256836, "answer_score": null, "sibling_qid": "KOL-2023-07-1743-Q005", "sibling_text": "4 advantage of composite boiler w r t to exhaust gas boiler and conventional boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Advantages of a composite boiler over an exhaust-gas and a conventional boiler", "cross_family": true }, { "answer_id": "ECON-EGB-004", "score": 0.5436739325523376, "sibling_score": 0.5436739325523376, "answer_score": null, "sibling_qid": "KOL-2025-10-3868-Q005", "sibling_text": "why economiser safety valve has highier setting than auxiliary boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Safety-valve setting after overhaul & why set higher than the boiler", "cross_family": true } ] }, { "qid": "MUM-2026-06-3370-Q006", "text": "Purpose of selector switch of compressor in ecr (lead n lag ) X questions ?", "family": "Air Compressor", "subtopic": "MAC / Air Compressor", "tid": "MUM-2026-06-3370", "tray": "new", "candidates": [ { "answer_id": "MAC-353-001", "score": 0.5643821358680725, "sibling_score": 0.5643821358680725, "answer_score": 0.4204272240400314, "sibling_qid": "MUM-2025-08-2348-Q005", "sibling_text": "main air compressor 2 switch main and slave why do we have that", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Main and slave switches on the main air compressors", "cross_family": false }, { "answer_id": "AC-VE-005", "score": 0.5275915861129761, "sibling_score": 0.5275915861129761, "answer_score": null, "sibling_qid": "KOC-2026-01-1993-Q030", "sibling_text": "what happens if less and more to compressor", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "If bumping clearance is more or less, what happens, and how do you reduce or adjust it?", "cross_family": false }, { "answer_id": "MAC-598-002", "score": 0.5226570963859558, "sibling_score": 0.5226570963859558, "answer_score": 0.38513476848602296, "sibling_qid": "MUM-2025-08-1578-Q007", "sibling_text": "compressor circuit dig", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "The main air compressor circuit — power and control circuits, starting, and electrical safeties in the compressor room", "cross_family": false } ] }, { "qid": "MUM-2026-06-3370-Q007", "text": "30 lit/day consumption in auxiliary engines trouble shooting and fault finding?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "", "tid": "MUM-2026-06-3370", "tray": "new", "candidates": [ { "answer_id": "AE-LOLOSS-004", "score": 0.6468409299850464, "sibling_score": 0.6468409299850464, "answer_score": null, "sibling_qid": "MUM-2026-03-2622-Q005", "sibling_text": "aux engine is running last five days and every day you are losing 30 liters of crank case oil as well in five days you have lost 150 of crankcase oil what will you do now", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Auxiliary engine loses a known quantity of crankcase oil over several days — required action", "cross_family": false }, { "answer_id": "STHX-003", "score": 0.6283248662948608, "sibling_score": 0.6283248662948608, "answer_score": null, "sibling_qid": "MUM-2026-01-2907-Q009", "sibling_text": "generator lub oil daily 30litre consumption lub oil cooler testing procedure", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "STHX-03 — Pressure and leak testing", "cross_family": false }, { "answer_id": "AEDEC-291-004", "score": 0.6034473776817322, "sibling_score": 0.6034473776817322, "answer_score": null, "sibling_qid": "KOL-2019-11-3298-Q002", "sibling_text": "ae full oh carried out ae running on no load what all things u will check as 2nd eng not satisfied with answer", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "4. Checks on no-load and before taking load", "cross_family": false } ] }, { "qid": "MUM-2026-06-3371-Q002", "text": "Insulation mat ? voltage dependent.", "family": "Electrical - Distribution & MSB", "subtopic": "", "tid": "MUM-2026-06-3371", "tray": "new", "candidates": [ { "answer_id": "ELEC-SAFE-002", "score": 0.6394732594490051, "sibling_score": 0.6394732594490051, "answer_score": 0.4937653660774231, "sibling_qid": "MUM-2026-06-3666-Q003", "sibling_text": "insulation mat specifications", "sibling_family": "Electrical - Distribution & MSB", "via": "sibling", "answer_title": "How to order insulating rubber mats", "cross_family": false }, { "answer_id": "CABLE-INSUL-D-001", "score": 0.6172524094581604, "sibling_score": 0.6172524094581604, "answer_score": null, "sibling_qid": "KOC-2023-03-0175-Q008", "sibling_text": "insulation on lv mv and hv materials", "sibling_family": "", "via": "sibling", "answer_title": "Insulation: materials, classes and required properties", "cross_family": false }, { "answer_id": "HV-SYS-P05-001", "score": 0.5965691208839417, "sibling_score": 0.5965691208839417, "answer_score": null, "sibling_qid": "KOL-2025-12-2929-Q003", "sibling_text": "hv msb safeties key ans specifically about mat insulation", "sibling_family": "", "via": "sibling", "answer_title": "HV switchboard (MSB): safeties, interlocks and protective features", "cross_family": false } ] }, { "qid": "MUM-2026-06-3372-Q003", "text": "how you ensure machine is dead electrically as there is residual magnetism also present ?", "family": "Risk & Safety Management", "subtopic": "LOTO / Isolation Permit", "tid": "MUM-2026-06-3372", "tray": "new", "candidates": [ { "answer_id": "RES-MAG-001", "score": 0.5842779278755188, "sibling_score": 0.5842779278755188, "answer_score": 0.4541833460330963, "sibling_qid": "KOL-2025-12-2926-Q004", "sibling_text": "residual magnetism how to bring back how to check if now ok without starting alternator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Residual magnetism — what it is, where it is stored, how it is lost and how you restore it", "cross_family": true }, { "answer_id": "RES-MAG-006", "score": 0.5792531967163086, "sibling_score": 0.5792531967163086, "answer_score": null, "sibling_qid": "KOL-2022-05-2565-Q003", "sibling_text": "how to excite if no residual magnetism where is current fed", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Loss of excitation — effects and consequences, and reversing residual magnetism by the battery and brush methods", "cross_family": true }, { "answer_id": "RES-MAG-004", "score": 0.5764217376708984, "sibling_score": 0.5764217376708984, "answer_score": 0.4867228239774704, "sibling_qid": "KOC-2024-05-1356-Q004", "sibling_text": "procedure for flashing of generator when residual magnetism lost", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Field flashing — the procedure, where the battery connects, which terminal, and the precautions", "cross_family": true } ] }, { "qid": "MUM-2026-06-3373-Q002", "text": "What is dead front panel ? ", "family": "Electrical - Motors & Starters", "subtopic": "Type of Starter Decision", "tid": "MUM-2026-06-3373", "tray": "review", "candidates": [ { "answer_id": "MSB-ESB-A-002", "score": 0.7501922249794006, "sibling_score": 0.7501922249794006, "answer_score": 0.48701176047325134, "sibling_qid": "MUM-2026-09-3995-Q006", "sibling_text": "dead front panel", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Dead-front panel and MSB / ESB access safety", "cross_family": false }, { "answer_id": "CABLE-INS-E-005", "score": 0.4238072633743286, "sibling_score": 0.4238072633743286, "answer_score": null, "sibling_qid": "KOL-2017-03-2113-Q005", "sibling_text": "wat is ebonite n meaning of deadfront", "sibling_family": "", "via": "sibling", "answer_title": "Cable properties, safety, standards and condition", "cross_family": false }, { "answer_id": "STR-DEC-A-001", "score": 0.40919122099876404, "sibling_score": 0.40919122099876404, "answer_score": null, "sibling_qid": "KOC-2023-10-1287-Q001", "sibling_text": "1 starter panel", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false } ] }, { "qid": "MUM-2026-06-3373-Q007", "text": "Hazardous Zone ?", "family": "Cargo Ops - Tankers", "subtopic": "IG System", "tid": "MUM-2026-06-3373", "tray": "new", "candidates": [ { "answer_id": "TCM-374-005", "score": 0.6377691626548767, "sibling_score": 0.6377691626548767, "answer_score": null, "sibling_qid": "KOC-2026-04-0912-Q020", "sibling_text": "hazard zone in chemical tanker", "sibling_family": "", "via": "sibling", "answer_title": "Gas-freeing a tanker after discharge or before dry dock (why through the IG system)", "cross_family": false }, { "answer_id": "FLD-601-002", "score": 0.6176077723503113, "sibling_score": 0.6176077723503113, "answer_score": null, "sibling_qid": "MUM-2026-05-3085-Q007", "sibling_text": "what is flammability zone", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What is the flammable range and the flammability zone? What happens inside a cargo tank below 1% LEL?", "cross_family": false }, { "answer_id": "RA-MGMT-A-001", "score": 0.5902208685874939, "sibling_score": 0.5902208685874939, "answer_score": null, "sibling_qid": "KOL-2024-07-3702-Q002", "sibling_text": "what is hazard", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "What is risk, what is hazard, and what is risk assessment?", "cross_family": true } ] }, { "qid": "MUM-2026-06-3374-Q007", "text": "What happens if power failure happens ?", "family": "Auxiliary Equipment", "subtopic": "Crane", "tid": "MUM-2026-06-3374", "tray": "new", "candidates": [ { "answer_id": "AUX-CRANE-002", "score": 0.6117045879364014, "sibling_score": 0.6117045879364014, "answer_score": null, "sibling_qid": "KOC-2021-09-0026-Q015", "sibling_text": "braking in crane what happens when power failure occurs", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Crane brakes, electromagnetic and hydrodynamic brakes, fail-safe arrangements, limit switches, stoppers and accumulators", "cross_family": false }, { "answer_id": "EMCY-DG-P03-004", "score": 0.5962468385696411, "sibling_score": 0.5962468385696411, "answer_score": 0.4457721680402756, "sibling_qid": "KOL-2021-07-2473-Q007", "sibling_text": "in case of blackout how power is restored", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Blackout sequence — starting the set and taking load back", "cross_family": true }, { "answer_id": "EMG-DG-P04-001", "score": 0.5922149419784546, "sibling_score": 0.5922149419784546, "answer_score": null, "sibling_qid": "KOL-2021-06-2450-Q003", "sibling_text": "how emergency generator come on load after failure of main power black out", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Emergency generator on-load / load-test procedure", "cross_family": true } ] }, { "qid": "MUM-2026-06-3375-Q001", "text": "ME C engines are cam less. How cam function is achieved ?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "MC-C vs MEB Engine", "tid": "MUM-2026-06-3375", "tray": "review", "candidates": [ { "answer_id": "MEB-MEC-P03-001", "score": 0.8195380568504333, "sibling_score": 0.8195380568504333, "answer_score": null, "sibling_qid": "CHE-2025-11-0223-Q002", "sibling_text": "me c engines are cam less how cam function is achieved", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "ME-B vs ME-C — the core difference", "cross_family": false }, { "answer_id": "ILK-318-006", "score": 0.7063619494438171, "sibling_score": 0.7063619494438171, "answer_score": null, "sibling_qid": "KOC-2026-05-0031-Q002", "sibling_text": "camshaft functions interlocks in me engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "6. How camshaft functions relate to main-engine interlocks", "cross_family": false }, { "answer_id": "MEB-MEC-P03-002", "score": 0.7016984820365906, "sibling_score": 0.7016984820365906, "answer_score": null, "sibling_qid": "KOL-2025-03-1971-Q003", "sibling_text": "in me engine who does the cam job", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "ME camless control architecture — ECS, CCU, EICU, MPC", "cross_family": false } ] }, { "qid": "MUM-2026-06-3375-Q005", "text": "⁠boiler sliding feet arrangement. Arrangement given for expansion of pipelines on boiler?", "family": "Heat Exchangers & Coolers", "subtopic": "Expansion Arrangement", "tid": "MUM-2026-06-3375", "tray": "new", "candidates": [ { "answer_id": "BLR-TUBE-P01-003", "score": 0.6322184205055237, "sibling_score": 0.6322184205055237, "answer_score": 0.5075290888547898, "sibling_qid": "KOL-2017-04-1287-Q005", "sibling_text": "boiler tubes expansion arrangement", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "02. Thermal expansion arrangements for boiler tubes", "cross_family": true }, { "answer_id": "BLR-TUBE-P02-001", "score": 0.5608634948730469, "sibling_score": 0.5608634948730469, "answer_score": null, "sibling_qid": "KOL-2018-01-1347-Q005", "sibling_text": "how is expansion of tubes accomodated in boilers ege how is leakage prevented in such an arrangement due to expansion", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Identifying a boiler tube leak and finding the leaking tube", "cross_family": true }, { "answer_id": "BLR-TUBE-P01-001", "score": 0.5578872561454773, "sibling_score": 0.5578872561454773, "answer_score": 0.5153789103031158, "sibling_qid": "KOL-2019-01-3207-Q003", "sibling_text": "how boiler tubes are fitted", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "01. Attaching, fitting and supporting boiler tubes", "cross_family": true } ] }, { "qid": "MUM-2026-06-3375-Q008", "text": "⁠what is surging? cross?", "family": "Turbocharger", "subtopic": "TC Surging", "tid": "MUM-2026-06-3375", "tray": "new", "candidates": [ { "answer_id": "TC-SURGE-001", "score": 0.5672246813774109, "sibling_score": 0.5672246813774109, "answer_score": 0.2821177363395691, "sibling_qid": "CHE-2025-11-0223-Q009", "sibling_text": "what is surging bht saare cross", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "What is turbocharger surging, and what happens inside the turbocharger when it surges?", "cross_family": false }, { "answer_id": "TC-SURGE-004", "score": 0.48534825444221497, "sibling_score": 0.48534825444221497, "answer_score": null, "sibling_qid": "KOL-2022-01-1655-Q005", "sibling_text": "surge line significance", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "What is the turbocharger surge line or surge limit, how is it found and plotted, and what is its significance?", "cross_family": false }, { "answer_id": "TCS-059-P04-009", "score": 0.4791218936443329, "sibling_score": 0.4791218936443329, "answer_score": 0.24485328793525696, "sibling_qid": "KOL-2025-08-2008-Q003", "sibling_text": "what is surge line xxx", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Surging and the surge line", "cross_family": false } ] }, { "qid": "MUM-2026-06-3376-Q001", "text": "Which function u r appearing ? Wat about other function ?Which attempt is this?", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-06-3376", "tray": "new", "candidates": [ { "answer_id": "IMO-CODES-P03-002", "score": 0.5976793766021729, "sibling_score": 0.5976793766021729, "answer_score": null, "sibling_qid": "MUM-2026-03-0815-Q003", "sibling_text": "which function", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": true }, { "answer_id": "LRHR-B-010", "score": 0.4888771176338196, "sibling_score": 0.4888771176338196, "answer_score": null, "sibling_qid": "KOL-2018-09-0221-Q005", "sibling_text": "hru function n everything", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Explain the HRU's operating principle and full operation. Draw it.", "cross_family": true }, { "answer_id": "CHK-330-001", "score": 0.4833407998085022, "sibling_score": 0.4833407998085022, "answer_score": null, "sibling_qid": "KOC-2022-05-1785-Q007", "sibling_text": "function of chock", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What is the purpose and function of main engine chocks?", "cross_family": true } ] }, { "qid": "MUM-2026-06-3376-Q012", "text": "Lift of it Improved high lift safety valve details?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2026-06-3376", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.7963946461677551, "sibling_score": 0.7963946461677551, "answer_score": null, "sibling_qid": "MUM-2026-06-3405-Q017", "sibling_text": "improved high lift safety valve details", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACSS-002", "score": 0.49274803400039674, "sibling_score": null, "answer_score": 0.49274803400039674, "sibling_qid": "", "sibling_text": "relief safety valves settings testing lifting reasons bursting disc set just above stage working pressure the class standard accumulation limit is about 10 though the exact set point is a maker sms value non isolable from its stage test to the maker s method easing gear or test rig for lifting pressure log and reset", "sibling_family": "", "via": "answer_title", "answer_title": "Relief / safety valves: settings, testing, lifting reasons; bursting disc", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-003", "score": 0.4739568769931793, "sibling_score": null, "answer_score": 0.4739568769931793, "sibling_qid": "", "sibling_text": "the accumulation test and the safety valve required lift how lift and capacity are verified and why accumulation must stay inside the limit popping test proves setting accumulation test proves installed relieving capacity not two versions of one test sizing the class discharge formula sizes the aggregate valve area from the maker s specified peak evaporation using a constant for the valve type", "sibling_family": "", "via": "answer_title", "answer_title": "The accumulation test and the safety valve — required lift, how lift and capacity are verified, and why accumulation must stay inside the limit", "cross_family": false } ] }, { "qid": "MUM-2026-06-3377-Q001", "text": "Asked about written status", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-06-3377", "tray": "new", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.6375980377197266, "sibling_score": 0.6375980377197266, "answer_score": null, "sibling_qid": "MUM-2026-03-1294-Q001", "sibling_text": "status of writtens and orals", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": true }, { "answer_id": "EXHV-P01-001", "score": 0.5927021503448486, "sibling_score": 0.5927021503448486, "answer_score": null, "sibling_qid": "KOC-2026-08-2106-Q001", "sibling_text": "status of written oral company type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "DUS-P1-02", "score": 0.5040999054908752, "sibling_score": 0.5040999054908752, "answer_score": null, "sibling_qid": "KOL-2025-08-3851-Q006", "sibling_text": "drydock plans rudder checks cross questions what about other written oral exams status told waiting for naval written result to come all other paper cleared", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Plans, drawings and special tools kept ready for drydock — engine-department view", "cross_family": true } ] }, { "qid": "MUM-2026-06-3377-Q003", "text": "What is the construction difference in both ME and AE chocks ?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "", "tid": "MUM-2026-06-3377", "tray": "new", "candidates": [ { "answer_id": "AEME-DIFF-001", "score": 0.6166883707046509, "sibling_score": 0.6166883707046509, "answer_score": null, "sibling_qid": "MUM-2026-04-1315-Q002", "sibling_text": "me ae construction difference", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "EMD-MEAE-001", "score": 0.6106046438217163, "sibling_score": 0.6106046438217163, "answer_score": 0.3958079144358635, "sibling_qid": "MUM-2024-07-1087-Q006", "sibling_text": "difference between foundation seating of me and ae basically the chocks are used in me and ae has flexible foundation which allows a certain degree of movement", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "1. ME vs AE foundation — rigid chocking against resilient mounting", "cross_family": true }, { "answer_id": "AEFP-471-006", "score": 0.420824259519577, "sibling_score": 0.420824259519577, "answer_score": null, "sibling_qid": "MUM-2026-05-3174-Q013", "sibling_text": "difference between me and ae fuel pumps", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "What is the difference between main-engine and auxiliary-engine fuel pumps?", "cross_family": false } ] }, { "qid": "MUM-2026-06-3377-Q004", "text": "⁠piston ring and lamellar what will you check ?", "family": "2-Stroke - Components (Other)", "subtopic": "Piston (Crown/Skirt/Inspection)", "tid": "MUM-2026-06-3377", "tray": "review", "candidates": [ { "answer_id": "CYL-LINER-P02-003", "score": 0.7217445969581604, "sibling_score": 0.7217445969581604, "answer_score": null, "sibling_qid": "KOL-2019-02-3210-Q002", "sibling_text": "how to check liner wear what will be piston ring if liner is chrome plated", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L3 · T044-PART_02-G003High", "cross_family": false }, { "answer_id": "PRING-B-001", "score": 0.721498429775238, "sibling_score": 0.721498429775238, "answer_score": 0.5682857513427734, "sibling_qid": "CHE-2026-03-0489-Q013", "sibling_text": "piston ring checks", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston-ring inspection & discard criteria", "cross_family": false }, { "answer_id": "CYL-LINER-P01-001", "score": 0.713908314704895, "sibling_score": 0.713908314704895, "answer_score": null, "sibling_qid": "MUM-2022-10-2698-Q003", "sibling_text": "main engine under piston inspection of the liner and the piston ring start when you are inside the under piston space which is cleaned up and ready for inspection how will you asses piston rings visually by seeing them indication of a collapse piston ring indication of a cracked piston ring indication of a broken piston ring what is different in all three cases what indication on liner can you check condition of liner through under piston inspection can you conduct liner gauging through under piston inspection", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Carrying out main-engine liner calibration (gauging)", "cross_family": false } ] }, { "qid": "MUM-2026-06-3378-Q005", "text": "super heater location, connections?", "family": "Refrigeration & AC", "subtopic": "Sub-cooling / Superheat", "tid": "MUM-2026-06-3378", "tray": "new", "candidates": [ { "answer_id": "TCM-374-001", "score": 0.5649409294128418, "sibling_score": 0.5649409294128418, "answer_score": null, "sibling_qid": "KOC-2026-03-2013-Q002", "sibling_text": "location of tank cleaning machine heater", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Overhaul, inspection and intervals of a tank-cleaning machine (with heater and pump)", "cross_family": true }, { "answer_id": "REF-SCSH-002", "score": 0.5517674088478088, "sibling_score": 0.5517674088478088, "answer_score": null, "sibling_qid": "KOL-2026-04-2054-Q003", "sibling_text": "super heater in reefer ac", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Superheat in refrigeration — purpose, adjustment, importance and confirming suction superheat", "cross_family": false }, { "answer_id": "REFR-FLT-002", "score": 0.5377436876296997, "sibling_score": 0.5377436876296997, "answer_score": null, "sibling_qid": "KOL-2016-09-3001-Q005", "sibling_text": "hot gas defrosting where is defrost pipe connection given", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Evaporator defrosting: methods, control, and defrost faults", "cross_family": false } ] }, { "qid": "MUM-2026-06-3378-Q006", "text": "how to define super heat ?", "family": "SOLAS - Fire Safety", "subtopic": "Fire Detector Type", "tid": "MUM-2026-06-3378", "tray": "new", "candidates": [ { "answer_id": "SH-332-005", "score": 0.4987766742706299, "sibling_score": 0.4987766742706299, "answer_score": 0.35362387001514434, "sibling_qid": "KOL-2019-08-1480-Q005", "sibling_text": "degree of superheat and how it is being controlled", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Desuperheater / attemperator: what, why, and superheat control", "cross_family": true }, { "answer_id": "REF-SCSH-002", "score": 0.4942309260368347, "sibling_score": 0.4942309260368347, "answer_score": 0.3692034900188446, "sibling_qid": "KOL-2021-03-1580-Q003", "sibling_text": "what is superheat why is it required", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Superheat in refrigeration — purpose, adjustment, importance and confirming suction superheat", "cross_family": true }, { "answer_id": "EQ-LINE-003", "score": 0.4835888743400574, "sibling_score": 0.4835888743400574, "answer_score": null, "sibling_qid": "KOL-2020-01-1512-Q001", "sibling_text": "tev equalising line degree of superheat and supercool", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "TEV working principle — internal vs external equalising, degree of superheat and supercool", "cross_family": true } ] }, { "qid": "MUM-2026-06-3378-Q008", "text": "bumming clearance ?", "family": "Shafting, Propeller & Rudder", "subtopic": "Stern Tube / Tail Shaft Bearings", "tid": "MUM-2026-06-3378", "tray": "new", "candidates": [ { "answer_id": "AC-VE-005", "score": 0.5367681980133057, "sibling_score": 0.5367681980133057, "answer_score": 0.33504514694213866, "sibling_qid": "MUM-2026-05-3276-Q004", "sibling_text": "how to take bumping clearance", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "If bumping clearance is more or less, what happens, and how do you reduce or adjust it?", "cross_family": true }, { "answer_id": "RUN-CLR-002", "score": 0.5187054872512817, "sibling_score": 0.5187054872512817, "answer_score": 0.3227658271789551, "sibling_qid": "MUM-2024-12-2263-Q003", "sibling_text": "bumping clearances adjustments three methods could answer only two", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Bumping clearance — what it is, why it matters, effects, and how it is adjusted", "cross_family": true }, { "answer_id": "BCL-592-002", "score": 0.51551353931427, "sibling_score": 0.51551353931427, "answer_score": null, "sibling_qid": "MUM-2026-05-3001-Q006S2", "sibling_text": "how to take clearance", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Take me through all the clearances you measure on the main engine and how you take each one.", "cross_family": false } ] }, { "qid": "MUM-2026-06-3379-Q003", "text": "Purifier bowl not closing reasons ?", "family": "Purifier & Centrifuges", "subtopic": "Purifier Operation / Bowl", "tid": "MUM-2026-06-3379", "tray": "review", "candidates": [ { "answer_id": "PURIF-BOWL-P02-001", "score": 0.8335651755332947, "sibling_score": 0.8335651755332947, "answer_score": 0.4878478169441223, "sibling_qid": "CHE-2025-11-0449-Q003", "sibling_text": "purifier bowl not closing reasons", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Bowl opening, closing & manual desludging — mechanism, manual operation, failure causes", "cross_family": false }, { "answer_id": "PUR-DSL-001", "score": 0.7066085338592529, "sibling_score": 0.7066085338592529, "answer_score": null, "sibling_qid": "MUM-2026-05-3220-Q006", "sibling_text": "purifier desludging procedure how does the bowl close", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Manual desludging of a purifier — the step-by-step procedure", "cross_family": false }, { "answer_id": "PUR-DSL-003", "score": 0.6937018036842346, "sibling_score": 0.6937018036842346, "answer_score": 0.5706505417823792, "sibling_qid": "KOL-2017-10-1329-Q004", "sibling_text": "purifier is on auto operation and after desludging top hood not closing reason", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Auto operation: bowl fails to close after desludging (‘top hood not closing’)", "cross_family": false } ] }, { "qid": "MUM-2026-06-3380-Q003", "text": "CO2 capacity calculations?", "family": "SOLAS - Fire Safety", "subtopic": "CO2 System", "tid": "MUM-2026-06-3380", "tray": "review", "candidates": [ { "answer_id": "CO2-CALC-P01-002", "score": 0.780097246170044, "sibling_score": 0.780097246170044, "answer_score": 0.47182245552539825, "sibling_qid": "MUM-2026-06-3394-Q003", "sibling_text": "co2 capacity calculations", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "How is the required CO2 quantity and number of bottles calculated for an engine-room total-flooding system?", "cross_family": false }, { "answer_id": "CO2-CALC-P02-001", "score": 0.5422110438346862, "sibling_score": null, "answer_score": 0.5422110438346862, "sibling_qid": "", "sibling_text": "co2 calculation inputs filling ratio bottle charge water capacity free gas volume mixing ratio free gas volume 1 kg of released co2 expands to 0 56 m of free gas fss code chapter 5 used to convert kg of charge into protected space volume filling ratio filling density about 0 67 kg co2 per litre of water capacity representative the bottle is never charged to 100 the vapour space is a deliberate the", "sibling_family": "", "via": "answer_title", "answer_title": "CO2 calculation inputs — filling ratio, bottle charge, water capacity, free-gas volume, mixing ratio", "cross_family": false }, { "answer_id": "CII-CALC-P03-001", "score": 0.5020893514156342, "sibling_score": null, "answer_score": 0.5020893514156342, "sibling_qid": "", "sibling_text": "calculating attained required cii formula unit reduction factor measurements attained cii m w where m fcj cfj and w capacity distance sailed one calendar year m mass of co in grams each fuel s mass consumed in the year its carbon factor cf summed over fuel types fuel data from the imo dcs marpol annex vi reg 27 g1 defines m in grams if you use tonnes of fuel with cf in t co t fuel the product is t", "sibling_family": "", "via": "answer_title", "answer_title": "Calculating attained & required CII — formula, unit, reduction factor, measurements", "cross_family": false } ] }, { "qid": "MUM-2026-06-3380-Q006", "text": "Stool space?", "family": "Ship Construction & Stability", "subtopic": "Stern Frame / Transom", "tid": "MUM-2026-06-3380", "tray": "new", "candidates": [ { "answer_id": "DUS-P5-03", "score": 0.5168923735618591, "sibling_score": 0.5168923735618591, "answer_score": null, "sibling_qid": "NOI-2026-09-0006-Q003", "sibling_text": "transom space", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Stern frame construction, cross-section and rudder-axis sketch", "cross_family": false }, { "answer_id": "PRING-CLR-A-002", "score": 0.48862263560295105, "sibling_score": 0.48862263560295105, "answer_score": null, "sibling_qid": "KOC-2023-10-1820-Q006", "sibling_text": "butt clearance", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston-ring clearances and calibration — butt, axial, radial, wear limits", "cross_family": true }, { "answer_id": "ESE-P01-003", "score": 0.468279629945755, "sibling_score": 0.468279629945755, "answer_score": null, "sibling_qid": "KOC-2026-08-2143-Q005", "sibling_text": "enclosed space", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "General enclosed-space entry procedure as second engineer", "cross_family": true } ] }, { "qid": "MUM-2026-06-3382-Q003", "text": "as a second engineer how will you make sure that the suction line from cargo hold to blower is not choked?", "family": "Cargo Ops - Bulk Carriers", "subtopic": "WIDAS / Smoke Detection", "tid": "MUM-2026-06-3382", "tray": "review", "candidates": [ { "answer_id": "WIDAS-SMK-001", "score": 0.8145237565040588, "sibling_score": 0.8145237565040588, "answer_score": null, "sibling_qid": "CHE-2024-02-0005-Q003", "sibling_text": "as a second engineer how will you make sure that the suction line from cargo hold to blower is not choked", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "WIDAS — water ingress detection and alarm system", "cross_family": false }, { "answer_id": "WIDAS-SMK-007", "score": 0.6639918684959412, "sibling_score": 0.6639918684959412, "answer_score": null, "sibling_qid": "MUM-2025-10-0505-Q004", "sibling_text": "cargo hold smoke detection system arrangement to know that line is not choked", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Smoke sampling line — testing, confirming clear, and what is in the tube", "cross_family": false }, { "answer_id": "CH-FIRE-001", "score": 0.6277965903282166, "sibling_score": 0.6277965903282166, "answer_score": null, "sibling_qid": "MUM-2025-09-2842-Q002", "sibling_text": "cargo hold fire detection how to check is nozzle chocke", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Cargo hold fire detection / smoke detection system", "cross_family": false } ] }, { "qid": "MUM-2026-06-3382-Q004", "text": "What is the component name and material inside the glass tubes provided in bridge for smoke detection?", "family": "Cargo Ops - Bulk Carriers", "subtopic": "WIDAS / Smoke Detection", "tid": "MUM-2026-06-3382", "tray": "review", "candidates": [ { "answer_id": "WIDAS-SMK-007", "score": 0.826644241809845, "sibling_score": 0.826644241809845, "answer_score": 0.41758137941360474, "sibling_qid": "CHE-2024-02-0005-Q004", "sibling_text": "what is the component name and material inside the glass tubes provided in bridge for smoke detection", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Smoke sampling line — testing, confirming clear, and what is in the tube", "cross_family": false }, { "answer_id": "WIDAS-SMK-006", "score": 0.5199496746063232, "sibling_score": 0.5199496746063232, "answer_score": null, "sibling_qid": "MUM-2025-05-0244-Q003", "sibling_text": "smoke detection system", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Cargo-hold smoke / fire detection system and how it works", "cross_family": false }, { "answer_id": "BLR-GG-003", "score": 0.507375955581665, "sibling_score": 0.507375955581665, "answer_score": null, "sibling_qid": "KOC-2025-05-1915-Q004", "sibling_text": "guage glass material", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "What are the types, parts, material and indication features of a boiler gauge glass?", "cross_family": true } ] }, { "qid": "MUM-2026-06-3383-Q005", "text": "How to use external fire fighting on offshore vessels ?", "family": "SOLAS - Fire Safety", "subtopic": "Fixed Firefighting", "tid": "MUM-2026-06-3383", "tray": "review", "candidates": [ { "answer_id": "FFF-A-001", "score": 0.6851356625556946, "sibling_score": 0.6851356625556946, "answer_score": null, "sibling_qid": "MUM-2024-12-2781-Q007", "sibling_text": "fixed fire fighting system for your ship on deck why not dcp or co2", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fixed firefighting on deck and in the cargo area — tankers, chemical and gas carriers", "cross_family": false }, { "answer_id": "MRF-002", "score": 0.6779326796531677, "sibling_score": 0.6779326796531677, "answer_score": null, "sibling_qid": "MUM-2026-03-0860-Q002", "sibling_text": "ballast voyage mast riser fire how to extinguis", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Tank cleaning is in progress on a ballast voyage and the mast riser catches fire. What are your actions as 2/E?", "cross_family": false }, { "answer_id": "FOAM-P02-001", "score": 0.6728204488754272, "sibling_score": 0.6728204488754272, "answer_score": null, "sibling_qid": "MUM-2025-11-0556-Q009", "sibling_text": "fixed fire fighting system on deck of ur ship", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Draw and explain the fixed deck foam firefighting system used on a tanker.", "cross_family": false } ] }, { "qid": "MUM-2026-06-3385-Q004", "text": "⁠Value of min GM for your ship?", "family": "Electrical - Motors & Starters", "subtopic": "IR Test / Insulation Resistance", "tid": "MUM-2026-06-3385", "tray": "review", "candidates": [ { "answer_id": "GM-META-003", "score": 0.8152750730514526, "sibling_score": 0.8152750730514526, "answer_score": 0.38341812193393704, "sibling_qid": "MUM-2024-12-2781-Q005", "sibling_text": "value of min gm for your ship", "sibling_family": "", "via": "sibling", "answer_title": "Finding the initial GM on board", "cross_family": false }, { "answer_id": "GM-META-004", "score": 0.49653926491737366, "sibling_score": 0.49653926491737366, "answer_score": null, "sibling_qid": "KOL-2016-08-0009-Q002", "sibling_text": "what is stable ship what if gm is negative", "sibling_family": "", "via": "sibling", "answer_title": "Negative GM, angle of loll and recovery", "cross_family": false }, { "answer_id": "BHD-TYPE-A-005", "score": 0.4941960573196411, "sibling_score": 0.4941960573196411, "answer_score": null, "sibling_qid": "KOL-2023-10-0781-Q003", "sibling_text": "min no of bulkhead in ship", "sibling_family": "", "via": "sibling", "answer_title": "Number, position and spacing of bulkheads", "cross_family": false } ] }, { "qid": "MUM-2026-06-3385-Q005", "text": "SOLAS chapter 15? Which code is there in it ?", "family": "SOLAS - General (HOLD)", "subtopic": "Solas Chapters Overview", "tid": "MUM-2026-06-3385", "tray": "new", "candidates": [ { "answer_id": "SOLAS-OVW-012", "score": 0.5898019075393677, "sibling_score": 0.5898019075393677, "answer_score": null, "sibling_qid": "KOL-2025-07-0991-Q014", "sibling_text": "solas chapter 15", "sibling_family": "", "via": "sibling", "answer_title": "SOLAS Chapter XV and the newest chapters", "cross_family": false }, { "answer_id": "SOLAS-XII-BC-002", "score": 0.5222548842430115, "sibling_score": 0.5222548842430115, "answer_score": null, "sibling_qid": "MUM-2022-10-0061-Q001", "sibling_text": "chp 12 solas", "sibling_family": "SOLAS - General (HOLD)", "via": "sibling", "answer_title": "Explain SOLAS Chapter XII — the additional safety measures for bulk carriers", "cross_family": false }, { "answer_id": "SOLAS-CH-005", "score": 0.5201923847198486, "sibling_score": 0.5201923847198486, "answer_score": 0.37174362838268277, "sibling_qid": "KOC-2026-02-0804-Q003", "sibling_text": "solas chapter 3 9 15", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Combined SOLAS Chapters III, IX and XV", "cross_family": true } ] }, { "qid": "MUM-2026-06-3386-Q001", "text": "Type of ship sailed, Bulk carrier?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-06-3386", "tray": "review", "candidates": [ { "answer_id": "SOLAS12-BC-A-001", "score": 0.8767156600952148, "sibling_score": 0.8767156600952148, "answer_score": 0.5888105273246765, "sibling_qid": "MUM-2026-06-3382-Q001", "sibling_text": "type of ship sailed bulk carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "SOLAS definition and scope of a bulk carrier", "cross_family": false }, { "answer_id": "COT-01", "score": 0.7853360772132874, "sibling_score": 0.7853360772132874, "answer_score": null, "sibling_qid": "KOC-2026-04-0892-Q003", "sibling_text": "type of ship sailed tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Oil-tanker types, definitions and cargo capability", "cross_family": false }, { "answer_id": "SOLAS-XII-BC-002", "score": 0.7743993997573853, "sibling_score": 0.7743993997573853, "answer_score": null, "sibling_qid": "KOC-2026-09-2208-Q005", "sibling_text": "bulk carrier as per solas", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Explain SOLAS Chapter XII — the additional safety measures for bulk carriers", "cross_family": true } ] }, { "qid": "MUM-2026-06-3386-Q006", "text": "Procedure to release co2 for cargo hold?", "family": "SOLAS - Fire Safety", "subtopic": "Cargo Hold Fire", "tid": "MUM-2026-06-3386", "tray": "review", "candidates": [ { "answer_id": "CH-FIRE-003", "score": 0.8154630661010742, "sibling_score": 0.8154630661010742, "answer_score": 0.565301239490509, "sibling_qid": "MUM-2026-06-3382-Q006", "sibling_text": "procedure to release co2 for cargo hold", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Cargo hold CO2 fixed system arrangement and release procedure", "cross_family": false }, { "answer_id": "CO2-SYS-001", "score": 0.7372497320175171, "sibling_score": 0.7372497320175171, "answer_score": 0.5000091403722763, "sibling_qid": "MUM-2024-02-0166-Q003", "sibling_text": "procedure to release bulk type co2 in car carrier", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 release procedure, shutdowns, re-entry and casualty-use decisions", "cross_family": false }, { "answer_id": "CO2-CALC-P01-003", "score": 0.4772290587425232, "sibling_score": null, "answer_score": 0.4772290587425232, "sibling_qid": "", "sibling_text": "how do you decide the number of co2 bottles to discharge for a cargo hold or protected space fire cargo space design quantity 30 of gross volume of the largest cargo space fss code chapter 5 same 0 56 m kg conversion to mass then to bottles", "sibling_family": "", "via": "answer_title", "answer_title": "How do you decide the number of CO2 bottles to discharge for a cargo-hold or protected-space fire?", "cross_family": false } ] }, { "qid": "MUM-2026-06-3387-Q005", "text": "structure of deck", "family": "Ship Construction & Stability", "subtopic": "Decks / Superstructure", "tid": "MUM-2026-06-3387", "tray": "new", "candidates": [ { "answer_id": "LLC-SURV-P02-002", "score": 0.5177245140075684, "sibling_score": 0.5177245140075684, "answer_score": 0.33685509115457535, "sibling_qid": "KOL-2022-03-0612-Q006", "sibling_text": "flush deck", "sibling_family": "", "via": "sibling", "answer_title": "2. Structural and watertight-integrity items: sheer, superstructure and flush deck", "cross_family": false }, { "answer_id": "CONT-FIRE-FINAL-1-005", "score": 0.505029559135437, "sibling_score": 0.505029559135437, "answer_score": null, "sibling_qid": "MUM-2024-09-0210-Q006", "sibling_text": "tiers of container on deck", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Container ship stability and on-deck tier loading", "cross_family": true }, { "answer_id": "FOAM-SYS-P05-001", "score": 0.49977201223373413, "sibling_score": 0.49977201223373413, "answer_score": null, "sibling_qid": "KOC-2026-02-2094-Q011", "sibling_text": "why ar afff is used in deck", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "1. Alcohol-resistant (AR-AFFF) foam — what it is and when it is used", "cross_family": true } ] }, { "qid": "MUM-2026-06-3387-Q007", "text": "In bulk carrier they are required to do their renewal survey as per ESP? What is ESP and what is their requirements? What is close up survey in ESP?", "family": "SOLAS - General (HOLD)", "subtopic": "Solas Chapter 12 - Bulk", "tid": "MUM-2026-06-3387", "tray": "review", "candidates": [ { "answer_id": "ESP-A-001", "score": 0.6541197896003723, "sibling_score": 0.6541197896003723, "answer_score": 0.49362598955631254, "sibling_qid": "MUM-2026-05-3148-Q001", "sibling_text": "what is esp in bulk carrier", "sibling_family": "SOLAS - General (HOLD)", "via": "sibling", "answer_title": "What is the Enhanced Survey Programme (ESP), and what is its purpose?", "cross_family": false }, { "answer_id": "ESP-B-002", "score": 0.6364313960075378, "sibling_score": 0.6364313960075378, "answer_score": null, "sibling_qid": "KOL-2020-10-0428-Q005", "sibling_text": "esp which type of ships its applicable what they surveyed in esp rao 1 related to esp cross question like what is close up survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Close-up survey, thickness gauging, substantial corrosion & renewal criteria", "cross_family": true }, { "answer_id": "ESP-A-002", "score": 0.5908371806144714, "sibling_score": 0.5908371806144714, "answer_score": null, "sibling_qid": "KOC-2022-01-0058-Q003", "sibling_text": "enhanced survey program of bulk carrier", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "On which ships is ESP applicable, under which statutory framework, and when is it carried out?", "cross_family": true } ] }, { "qid": "MUM-2026-06-3388-Q003", "text": "⁠Life boat brake arrangement ?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Lifeboat Static / Dynamic Test", "tid": "MUM-2026-06-3388", "tray": "review", "candidates": [ { "answer_id": "DRG-B-003", "score": 0.792966365814209, "sibling_score": 0.792966365814209, "answer_score": null, "sibling_qid": "KOC-2025-01-0521-Q006", "sibling_text": "lifeboat brakes diagram", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Brakes — types, why two, and how the centrifugal brake works", "cross_family": false }, { "answer_id": "DRG-B-004", "score": 0.7420979738235474, "sibling_score": 0.7420979738235474, "answer_score": null, "sibling_qid": "KOL-2025-09-1092-Q003", "sibling_text": "life boat brake maintenance", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Brake testing — static, dynamic, and what you actually do onboard", "cross_family": false }, { "answer_id": "DRG-B-002", "score": 0.7268276810646057, "sibling_score": 0.7268276810646057, "answer_score": 0.5304178953170776, "sibling_qid": "KOL-2025-09-1034-Q011", "sibling_text": "life boat winch braking system and operation", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "The lifeboat winch — construction, hoisting and long-term maintenance", "cross_family": false } ] }, { "qid": "MUM-2026-06-3389-Q006", "text": "Why we need forging ?", "family": "Workshop & Welding", "subtopic": "Forge / Forging", "tid": "MUM-2026-06-3389", "tray": "new", "candidates": [ { "answer_id": "FORGE-002", "score": 0.5765615105628967, "sibling_score": 0.5765615105628967, "answer_score": 0.37512352168560026, "sibling_qid": "KOC-2025-09-1945-Q001", "sibling_text": "what is meant by forging", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "What is forging?", "cross_family": false }, { "answer_id": "FORGE-001", "score": 0.5144737958908081, "sibling_score": 0.5144737958908081, "answer_score": 0.36211955547332764, "sibling_qid": "MUM-2026-04-1316-Q010", "sibling_text": "forging process wher n why", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "The forging process — how it is done, where it is used, and its advantages", "cross_family": false }, { "answer_id": "FORGE-003", "score": 0.4087018370628357, "sibling_score": 0.4087018370628357, "answer_score": 0.3186980441212654, "sibling_qid": "MUM-2025-09-2847-Q009", "sibling_text": "casting forging", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Compare casting and forging", "cross_family": false } ] }, { "qid": "MUM-2026-06-3391-Q005", "text": "Type of engine ?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-06-3391", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.8005295395851135, "sibling_score": 0.8005295395851135, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.7929258942604065, "sibling_score": 0.7929258942604065, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-001", "score": 0.4521873891353607, "sibling_score": null, "answer_score": 0.4521873891353607, "sibling_qid": "", "sibling_text": "1 turbocharger type main engine vs generator engine compressor is centrifugal in both cases only the turbine type differs large slow speed main engine axial flow turbine single stage constant pressure system", "sibling_family": "", "via": "answer_title", "answer_title": "1. Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "MUM-2026-06-3392-Q003", "text": "High lift safety valve ?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2026-06-3392", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.7766624689102173, "sibling_score": 0.7766624689102173, "answer_score": null, "sibling_qid": "MUM-2026-06-3523-Q005", "sibling_text": "high lift safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACSS-002", "score": 0.5248062044382095, "sibling_score": null, "answer_score": 0.5248062044382095, "sibling_qid": "", "sibling_text": "relief safety valves settings testing lifting reasons bursting disc set just above stage working pressure the class standard accumulation limit is about 10 though the exact set point is a maker sms value non isolable from its stage test to the maker s method easing gear or test rig for lifting pressure log and reset", "sibling_family": "", "via": "answer_title", "answer_title": "Relief / safety valves: settings, testing, lifting reasons; bursting disc", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-003", "score": 0.5003753900527954, "sibling_score": null, "answer_score": 0.5003753900527954, "sibling_qid": "", "sibling_text": "the accumulation test and the safety valve required lift how lift and capacity are verified and why accumulation must stay inside the limit popping test proves setting accumulation test proves installed relieving capacity not two versions of one test sizing the class discharge formula sizes the aggregate valve area from the maker s specified peak evaporation using a constant for the valve type", "sibling_family": "", "via": "answer_title", "answer_title": "The accumulation test and the safety valve — required lift, how lift and capacity are verified, and why accumulation must stay inside the limit", "cross_family": false } ] }, { "qid": "MUM-2026-06-3393-Q001", "text": "CSR objectives on tankers(Common Structural rules) ?", "family": "Surveys - Statutory", "subtopic": "CSR / Continuous Synopsis Record", "tid": "MUM-2026-06-3393", "tray": "new", "candidates": [ { "answer_id": "IBC-BCH-B-005", "score": 0.5773370862007141, "sibling_score": 0.5773370862007141, "answer_score": null, "sibling_qid": "CHE-2026-02-0108-Q010", "sibling_text": "constructional requirement for type 1 2 3 chemical tankers", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Type 1, 2 and 3 chemical tankers — construction and tank location", "cross_family": true }, { "answer_id": "FSE-P02-002", "score": 0.5665394067764282, "sibling_score": 0.5665394067764282, "answer_score": null, "sibling_qid": "KOL-2016-08-0009-Q004", "sibling_text": "what constructional features in tankers to reduce fse", "sibling_family": "", "via": "sibling", "answer_title": "Constructional arrangements in tanks and tankers that reduce FSE", "cross_family": false }, { "answer_id": "COT-02", "score": 0.5570400357246399, "sibling_score": 0.5570400357246399, "answer_score": 0.4441124677658081, "sibling_qid": "KOC-2025-06-0605-Q003", "sibling_text": "draw chemical tanker cross section constructional difference b w chemical and conventional tanker why crude oil tanker deck stiffeners are placed inside how arrangements for ballast pipelines are given and many x", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Oil tanker versus chemical tanker construction", "cross_family": true } ] }, { "qid": "MUM-2026-06-3393-Q002", "text": "Technical and Operational Measures in Annex 6?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "", "tid": "MUM-2026-06-3393", "tray": "new", "candidates": [ { "answer_id": "A6-NSEC-003", "score": 0.5027564167976379, "sibling_score": 0.5027564167976379, "answer_score": null, "sibling_qid": "KOL-2016-09-0013-Q001", "sibling_text": "annex 6 mainly nox limit nox technical file", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "NOx — formation, limits & reduction (SCR / EGR)", "cross_family": false }, { "answer_id": "AVI-SCOPE-002", "score": 0.5017681121826172, "sibling_score": 0.5017681121826172, "answer_score": null, "sibling_qid": "KOC-2026-03-0880-Q013", "sibling_text": "how to ensure annex 6 followed onboard", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Explain the purpose and scope of MARPOL Annex VI.", "cross_family": false }, { "answer_id": "AVI-SCOPE-005", "score": 0.4983115792274475, "sibling_score": 0.4983115792274475, "answer_score": null, "sibling_qid": "KOC-2025-09-0656-Q006", "sibling_text": "annex 6 name it s pollutant name how you maintain all this pollutant on board methods for that nox sox voc ods pm", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What pollutants, gases, emissions and substances are controlled under MARPOL Annex VI?", "cross_family": false } ] }, { "qid": "MUM-2026-06-3393-Q003", "text": "CII reduction factor ?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "CII / Carbon Intensity", "tid": "MUM-2026-06-3393", "tray": "new", "candidates": [ { "answer_id": "CII-CALC-P03-001", "score": 0.5961079597473145, "sibling_score": 0.5961079597473145, "answer_score": 0.379517225921154, "sibling_qid": "MUM-2026-06-3413-Q007", "sibling_text": "cii reduction factor year wise", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Calculating attained & required CII — formula, unit, reduction factor, measurements", "cross_family": false }, { "answer_id": "RGEAR-001", "score": 0.5940766930580139, "sibling_score": 0.5940766930580139, "answer_score": null, "sibling_qid": "MUM-2026-06-3411-Q007", "sibling_text": "reduction factor", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Reduction factor / reduction ratio in reduction gearing", "cross_family": false }, { "answer_id": "CII-P01-001", "score": 0.5537922978401184, "sibling_score": 0.5537922978401184, "answer_score": null, "sibling_qid": "KOC-2023-12-0258-Q009", "sibling_text": "cii objective how to reduce", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is CII and what is its purpose?", "cross_family": false } ] }, { "qid": "MUM-2026-06-3393-Q005", "text": "How Length of compartment decided ?", "family": "Drydock & Underwater Surveys", "subtopic": "Equipment Number", "tid": "MUM-2026-06-3393", "tray": "new", "candidates": [ { "answer_id": "BK-003", "score": 0.5595759153366089, "sibling_score": 0.5595759153366089, "answer_score": null, "sibling_qid": "KOC-2025-07-0633-Q018", "sibling_text": "length deciding factor", "sibling_family": "", "via": "sibling", "answer_title": "What are the bilge-keel design, length, depth and protrusion requirements?", "cross_family": false }, { "answer_id": "FL-PERM-P01-005", "score": 0.5520006418228149, "sibling_score": 0.5520006418228149, "answer_score": 0.39980410933494565, "sibling_qid": "KOL-2026-04-1219-Q004", "sibling_text": "what is floodable length and permissible length of a compartment", "sibling_family": "", "via": "sibling", "answer_title": "Floodable length vs permissible length", "cross_family": false }, { "answer_id": "EQNO-536-002", "score": 0.5253790020942688, "sibling_score": 0.5253790020942688, "answer_score": null, "sibling_qid": "MUM-2026-04-0880-Q006", "sibling_text": "explain equ no how chain length decided", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "How is equipment number used to decide anchor and chain requirements?", "cross_family": false } ] }, { "qid": "MUM-2026-06-3393-Q007", "text": "Transom space where?", "family": "Ship Construction & Stability", "subtopic": "Stern Frame / Transom", "tid": "MUM-2026-06-3393", "tray": "review", "candidates": [ { "answer_id": "DUS-P5-03", "score": 0.7444286942481995, "sibling_score": 0.7444286942481995, "answer_score": null, "sibling_qid": "NOI-2026-09-0006-Q003", "sibling_text": "transom space", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Stern frame construction, cross-section and rudder-axis sketch", "cross_family": false }, { "answer_id": "PPS-230-004", "score": 0.5695074200630188, "sibling_score": 0.5695074200630188, "answer_score": null, "sibling_qid": "NOI-2026-09-0006-Q004", "sibling_text": "panting pounding arrangements in transom space", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Forward strengthening to resist pounding / slamming", "cross_family": false }, { "answer_id": "BHD-TYP-C-004", "score": 0.4875560700893402, "sibling_score": 0.4875560700893402, "answer_score": null, "sibling_qid": "KOC-2025-12-0741-Q004", "sibling_text": "what is wash bulkhead in transverse direction", "sibling_family": "", "via": "sibling", "answer_title": "Wash (swash) bulkhead — purpose and how it works", "cross_family": false } ] }, { "qid": "MUM-2026-06-3394-Q006", "text": "Stool space?", "family": "Ship Construction & Stability", "subtopic": "Stern Frame / Transom", "tid": "MUM-2026-06-3394", "tray": "new", "candidates": [ { "answer_id": "DUS-P5-03", "score": 0.5168923735618591, "sibling_score": 0.5168923735618591, "answer_score": null, "sibling_qid": "NOI-2026-09-0006-Q003", "sibling_text": "transom space", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Stern frame construction, cross-section and rudder-axis sketch", "cross_family": false }, { "answer_id": "PRING-CLR-A-002", "score": 0.48862263560295105, "sibling_score": 0.48862263560295105, "answer_score": null, "sibling_qid": "KOC-2023-10-1820-Q006", "sibling_text": "butt clearance", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston-ring clearances and calibration — butt, axial, radial, wear limits", "cross_family": true }, { "answer_id": "ESE-P01-003", "score": 0.468279629945755, "sibling_score": 0.468279629945755, "answer_score": null, "sibling_qid": "KOC-2026-08-2143-Q005", "sibling_text": "enclosed space", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "General enclosed-space entry procedure as second engineer", "cross_family": true } ] }, { "qid": "MUM-2026-06-3395-Q002", "text": "If no certification what will happen ?", "family": "Surveys - Statutory", "subtopic": "Detention / Clear Ground", "tid": "MUM-2026-06-3395", "tray": "new", "candidates": [ { "answer_id": "CERT-LIST-P01-001", "score": 0.5219614505767822, "sibling_score": 0.5219614505767822, "answer_score": null, "sibling_qid": "CHE-2025-08-0020-Q004", "sibling_text": "certification", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "List the statutory certificates carried onboard a ship.", "cross_family": false }, { "answer_id": "CERT-LIST-P02-005", "score": 0.506375789642334, "sibling_score": 0.506375789642334, "answer_score": null, "sibling_qid": "KOL-2026-01-4082-Q010", "sibling_text": "certificates issued by class only not flag state", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Class certificate / classification certificate", "cross_family": false }, { "answer_id": "CERT-LIST-P03-001", "score": 0.4940457344055176, "sibling_score": 0.4940457344055176, "answer_score": 0.3101307198405266, "sibling_qid": "MUM-2025-08-0375-Q011", "sibling_text": "certificates under annex ii", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "MARPOL, AFS & annex-specific certificates", "cross_family": false } ] }, { "qid": "MUM-2026-06-3396-Q009", "text": "Boiler safety valve high lift and improved high lift construction difference?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2026-06-3396", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.7797271609306335, "sibling_score": 0.7797271609306335, "answer_score": null, "sibling_qid": "MUM-2026-06-3418-Q008", "sibling_text": "constructional diff between high lift and improved high lift safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "BLR-STM-PR-B54-003", "score": 0.45518395900726316, "sibling_score": null, "answer_score": 0.45518395900726316, "sibling_qid": "", "sibling_text": "the boiler high pressure cut out has operated what makes it cut out what it is an independent burner shut off on pressure a protective device not part of the modulating control order of set points working pressure control band high pressure alarm high pressure cut out safety valve set pressure then the class accumulation limit above that", "sibling_family": "", "via": "answer_title", "answer_title": "The boiler high-pressure cut-out has operated — what makes it cut out", "cross_family": false }, { "answer_id": "ECON-EGB-004", "score": 0.4525279015302658, "sibling_score": null, "answer_score": 0.4525279015302658, "sibling_qid": "", "sibling_text": "safety valve setting after overhaul why set higher than the boiler setting raise pressure under steam on a calibrated gauge adjust spring compression to lift at the approved set pressure verify re seat and blowdown two valves one at a time the other gagged lock and seal surveyor witnessed values are class approved ship specific set pressure accumulation representative limit and blowdown quote the ", "sibling_family": "", "via": "answer_title", "answer_title": "Safety-valve setting after overhaul & why set higher than the boiler", "cross_family": false } ] }, { "qid": "MUM-2026-06-3396-Q010", "text": "Blow down ring use ?", "family": "Boilers - Operations & Firing", "subtopic": "Scum / Blow Down", "tid": "MUM-2026-06-3396", "tray": "new", "candidates": [ { "answer_id": "SBD-002", "score": 0.4523774981498718, "sibling_score": 0.4523774981498718, "answer_score": null, "sibling_qid": "KOL-2023-01-1722-Q005", "sibling_text": "blr bottom blow down when you will why you will do rest i forgot", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "What is scum blow down and bottom blow down — why and when, the valve opening sequence, and what you check afterwards? How do you instruct the junior engineer or TME?", "cross_family": false }, { "answer_id": "WRG-004", "score": 0.4492061138153076, "sibling_score": 0.4492061138153076, "answer_score": null, "sibling_qid": "MUM-2026-05-3301-Q007", "sibling_text": "wear ring wearing out", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Why wear rings wear, why they wear out frequently, and reusing an over-clearance ring with no spare on board", "cross_family": true }, { "answer_id": "SB-PRG-B-002", "score": 0.4239371716976166, "sibling_score": 0.4239371716976166, "answer_score": null, "sibling_qid": "MUM-2023-03-2165-Q002", "sibling_text": "stuffing box overhaul draw the various segments of rings if limit exceed what can be done", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Worn rings, springs, O-rings and no-spare actions", "cross_family": true } ] }, { "qid": "MUM-2026-06-3396-Q011", "text": "Easing gear how connected ?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2026-06-3396", "tray": "new", "candidates": [ { "answer_id": "INT-SHAFT-001", "score": 0.4584968090057373, "sibling_score": 0.4584968090057373, "answer_score": 0.330067540705204, "sibling_qid": "MUM-2025-10-2440-Q004", "sibling_text": "how intermediate shaft is connected", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "1. Connecting and aligning the intermediate shaft", "cross_family": true }, { "answer_id": "WIDAS-SMK-003", "score": 0.4278559386730194, "sibling_score": 0.4278559386730194, "answer_score": null, "sibling_qid": "KOC-2024-06-1365-Q012", "sibling_text": "how it s connected", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "WIDAS arrangement — sensors, levels, panel and repeater", "cross_family": true }, { "answer_id": "SDC-001", "score": 0.42726022005081177, "sibling_score": 0.42726022005081177, "answer_score": null, "sibling_qid": "KOC-2021-11-0036-Q013", "sibling_text": "motor connection", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Why is the alternator star connected and the motor delta connected?", "cross_family": true } ] }, { "qid": "MUM-2026-06-3397-Q002", "text": "Rapson slide working ?", "family": "Steering Gear & Hydraulics", "subtopic": "Rapson Slide", "tid": "MUM-2026-06-3397", "tray": "new", "candidates": [ { "answer_id": "RAP-SLIDE-001", "score": 0.6154416799545288, "sibling_score": 0.6154416799545288, "answer_score": 0.3846790462732315, "sibling_qid": "KOC-2022-05-0961-Q010", "sibling_text": "rapson slide explain which part is moving is the rapson slide moving draw and explain", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Rapson slide mechanism — how ram movement becomes rudder movement", "cross_family": false }, { "answer_id": "RAP-SLIDE-003", "score": 0.5734121203422546, "sibling_score": 0.5734121203422546, "answer_score": 0.3084505006670952, "sibling_qid": "KOL-2025-07-1989-Q005", "sibling_text": "rapson slide mechanism advantages", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Advantages of the Rapson slide steering gear mechanism", "cross_family": false }, { "answer_id": "RAP-SLIDE-002", "score": 0.3715385913848877, "sibling_score": null, "answer_score": 0.3715385913848877, "sibling_qid": "", "sibling_text": "rapson slide arrangement main parts swivel block fork and bearing used tiller keyed to the rudder stock two or four rams drive a common crosshead on guides the guide is often a joist girder linking the ram pairs and it usually carries the mechanical steering stops", "sibling_family": "", "via": "answer_title", "answer_title": "Rapson slide arrangement, main parts, swivel block / fork and bearing used", "cross_family": false } ] }, { "qid": "MUM-2026-06-3397-Q004", "text": "Why flywheel weight given?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Critical Speed / Barred RPM", "tid": "MUM-2026-06-3397", "tray": "new", "candidates": [ { "answer_id": "ETP-344-P03-004", "score": 0.5930629372596741, "sibling_score": 0.5930629372596741, "answer_score": 0.4090228706598282, "sibling_qid": "KOL-2020-02-1520-Q003", "sibling_text": "function of flywheel", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Flywheel — function and how it stores/transmits energy", "cross_family": false }, { "answer_id": "CPP-GRM-06", "score": 0.5929383635520935, "sibling_score": 0.5929383635520935, "answer_score": 0.42595886588096615, "sibling_qid": "KOL-2025-12-4076-Q009", "sibling_text": "function of flywheel", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Flywheel and crankshaft speed-irregularity factor", "cross_family": false }, { "answer_id": "VIB-BAL-A-001", "score": 0.5675026774406433, "sibling_score": 0.5675026774406433, "answer_score": null, "sibling_qid": "KOL-2020-02-1520-Q004", "sibling_text": "what is used to compensate for the torque fluctuations imparted by flywheel", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "VIB-A-01 — Engine vibration — what it is, its types and causes, and how it is controlled", "cross_family": false } ] }, { "qid": "MUM-2026-06-3397-Q005", "text": "Why flyweight are given in governor?", "family": "Automation & Controls", "subtopic": "Governor", "tid": "MUM-2026-06-3397", "tray": "new", "candidates": [ { "answer_id": "GOV-082-P01-002", "score": 0.48985907435417175, "sibling_score": 0.48985907435417175, "answer_score": 0.3359171241521835, "sibling_qid": "MUM-2026-02-1254-Q002", "sibling_text": "governor type", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Types of governor fitted on ships and how they differ", "cross_family": false }, { "answer_id": "GOV-082-P01-016", "score": 0.48660093545913696, "sibling_score": 0.48660093545913696, "answer_score": 0.43194369673728944, "sibling_qid": "MUM-2026-05-3000-Q006", "sibling_text": "balancing of governor", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Governor balancing and flyweight (\"metal\") load", "cross_family": false }, { "answer_id": "GOV-P03-001", "score": 0.4696609377861023, "sibling_score": 0.4696609377861023, "answer_score": null, "sibling_qid": "KOL-2020-02-3327-Q007", "sibling_text": "sensitivity in governor", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Dead band and sensitivity of a governor", "cross_family": false } ] }, { "qid": "MUM-2026-06-3401-Q003", "text": "Power cable maintenance ?", "family": "Electrical - Cables & Insulation", "subtopic": "", "tid": "MUM-2026-06-3401", "tray": "new", "candidates": [ { "answer_id": "CBL-INS-B-002", "score": 0.6352746486663818, "sibling_score": 0.6352746486663818, "answer_score": null, "sibling_qid": "MUM-2026-04-2083-Q003", "sibling_text": "power and control cable construction", "sibling_family": "", "via": "sibling", "answer_title": "Layers and construction of a shipboard cable", "cross_family": false }, { "answer_id": "CB033-C-001", "score": 0.6246997117996216, "sibling_score": 0.6246997117996216, "answer_score": null, "sibling_qid": "MUM-2026-02-1944-Q001S2", "sibling_text": "maintenance on circuit breaker", "sibling_family": "", "via": "sibling", "answer_title": "How do you carry out maintenance and testing on an ACB / main circuit breaker?", "cross_family": false }, { "answer_id": "ALT-MAINT-A-001", "score": 0.6094647645950317, "sibling_score": 0.6094647645950317, "answer_score": null, "sibling_qid": "KOL-2021-03-2433-Q001", "sibling_text": "maintenance on electrical equipment onboard", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Routine maintenance & care of a ship’s alternator", "cross_family": true } ] }, { "qid": "MUM-2026-06-3401-Q004", "text": "Reefer socket maintenance?", "family": "Electrical - Cables & Insulation", "subtopic": "", "tid": "MUM-2026-06-3401", "tray": "new", "candidates": [ { "answer_id": "UNL-330-002", "score": 0.4465811848640442, "sibling_score": 0.4465811848640442, "answer_score": null, "sibling_qid": "KOC-2026-09-2193-Q003", "sibling_text": "reefer unloader working", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Explain the working of the main air compressor unloader.", "cross_family": true }, { "answer_id": "REEF-COMP-001", "score": 0.4345853626728058, "sibling_score": 0.4345853626728058, "answer_score": null, "sibling_qid": "MUM-2022-07-2135-Q002", "sibling_text": "reefer comp safeties", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Reefer/AC compressor safeties and cut-outs — safety valve, HP and LP cut-outs", "cross_family": true }, { "answer_id": "REEF-CHG-001", "score": 0.4263889789581299, "sibling_score": 0.4263889789581299, "answer_score": null, "sibling_qid": "KOL-2018-03-3125-Q004", "sibling_text": "reefer charging", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "01Charging or replenishing the refrigerant in a refrigeration / AC plant", "cross_family": true } ] }, { "qid": "MUM-2026-06-3403-Q002", "text": "what is dead front panel?", "family": "Electrical - Motors & Starters", "subtopic": "Type of Starter Decision", "tid": "MUM-2026-06-3403", "tray": "review", "candidates": [ { "answer_id": "MSB-ESB-A-002", "score": 0.7501922249794006, "sibling_score": 0.7501922249794006, "answer_score": 0.48701176047325134, "sibling_qid": "MUM-2026-09-3995-Q006", "sibling_text": "dead front panel", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Dead-front panel and MSB / ESB access safety", "cross_family": false }, { "answer_id": "CABLE-INS-E-005", "score": 0.4238072335720062, "sibling_score": 0.4238072335720062, "answer_score": null, "sibling_qid": "KOL-2017-03-2113-Q005", "sibling_text": "wat is ebonite n meaning of deadfront", "sibling_family": "", "via": "sibling", "answer_title": "Cable properties, safety, standards and condition", "cross_family": false }, { "answer_id": "STR-DEC-A-001", "score": 0.40919119119644165, "sibling_score": 0.40919119119644165, "answer_score": null, "sibling_qid": "KOC-2023-10-1287-Q001", "sibling_text": "1 starter panel", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false } ] }, { "qid": "MUM-2026-06-3405-Q001", "text": "Which function u r appearing?", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-06-3405", "tray": "review", "candidates": [ { "answer_id": "IMO-CODES-P03-002", "score": 0.6789047718048096, "sibling_score": 0.6789047718048096, "answer_score": null, "sibling_qid": "MUM-2026-03-0815-Q003", "sibling_text": "which function", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": true }, { "answer_id": "LRHR-B-010", "score": 0.5498921275138855, "sibling_score": 0.5498921275138855, "answer_score": null, "sibling_qid": "KOL-2018-09-0221-Q005", "sibling_text": "hru function n everything", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Explain the HRU's operating principle and full operation. Draw it.", "cross_family": true }, { "answer_id": "LRHR-B-009", "score": 0.5376313328742981, "sibling_score": 0.5376313328742981, "answer_score": 0.275458163022995, "sibling_qid": "KOL-2019-07-0302-Q004", "sibling_text": "hru function", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What is the HRU, where is it fitted, and what is its function?", "cross_family": true } ] }, { "qid": "MUM-2026-06-3405-Q002", "text": "What about other function Which attempt is this?", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-06-3405", "tray": "new", "candidates": [ { "answer_id": "IMO-CODES-P03-002", "score": 0.5298638939857483, "sibling_score": 0.5298638939857483, "answer_score": null, "sibling_qid": "MUM-2026-03-0815-Q003", "sibling_text": "which function", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": true }, { "answer_id": "LLC-SUR-POA-3-FINAL-001", "score": 0.48438334465026855, "sibling_score": 0.48438334465026855, "answer_score": null, "sibling_qid": "MUM-2025-09-0469-Q005", "sibling_text": "condition of assignment few x questions then said we will switch to other fn", "sibling_family": "", "via": "sibling", "answer_title": "Conditions of assignment of freeboard", "cross_family": false }, { "answer_id": "BHD-TYPE-A-001", "score": 0.452627569437027, "sibling_score": 0.452627569437027, "answer_score": null, "sibling_qid": "KOC-2025-12-0741-Q006", "sibling_text": "anyother use than that", "sibling_family": "", "via": "sibling", "answer_title": "Bulkheads — types, classification, functions and purpose", "cross_family": false } ] }, { "qid": "MUM-2026-06-3405-Q013", "text": "What is Subcooling ?", "family": "Refrigeration & AC", "subtopic": "Sub-cooling / Superheat", "tid": "MUM-2026-06-3405", "tray": "review", "candidates": [ { "answer_id": "REF-CYC-006", "score": 0.7266358137130737, "sibling_score": 0.7266358137130737, "answer_score": 0.49501463770866394, "sibling_qid": "MUM-2026-05-3245-Q002", "sibling_text": "sub cooling", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "6. Saturation temperature, subcooling, superheat and dryness fraction", "cross_family": false }, { "answer_id": "REF-SCSH-001", "score": 0.7237378358840942, "sibling_score": 0.7237378358840942, "answer_score": 0.5393220335245132, "sibling_qid": "MUM-2026-06-3494-Q006", "sibling_text": "sub cooling in refer", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Subcooling in refrigeration — meaning, purpose, significance and expected values", "cross_family": false }, { "answer_id": "REF-SCSH-003", "score": 0.5039103657007217, "sibling_score": null, "answer_score": 0.5039103657007217, "sibling_qid": "", "sibling_text": "subcooling and superheating together where they occur warm sea water and compressor liquid protection subcooling high side after the condenser condenser bottom receiver dedicated sub cooler or suction to liquid heat exchanger liquid below the condensing saturation temperature superheating low side in the evaporator tail and suction line vapour above the evaporating saturation temperature", "sibling_family": "", "via": "answer_title", "answer_title": "Subcooling and superheating together — where they occur, warm sea water, and compressor liquid protection", "cross_family": false } ] }, { "qid": "MUM-2026-06-3405-Q020", "text": "Ball bearing where it is used ?", "family": "Auxiliary Equipment", "subtopic": "Anti-Friction Bearing", "tid": "MUM-2026-06-3405", "tray": "review", "candidates": [ { "answer_id": "BRG-NOM-002", "score": 0.8244652152061462, "sibling_score": 0.8244652152061462, "answer_score": 0.49662970304489135, "sibling_qid": "MUM-2026-06-3376-Q015", "sibling_text": "ball bearing where it is used", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Ball, Roller, Radial and Axial Bearings — Choosing the Type", "cross_family": false }, { "answer_id": "THRUST-BRG-B-003", "score": 0.723777711391449, "sibling_score": 0.723777711391449, "answer_score": null, "sibling_qid": "MUM-2026-06-3405-Q021", "sibling_text": "for which thrust ball bearing is used", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Michell / tilting-pad / collar thrust bearing — working principle", "cross_family": false }, { "answer_id": "THRUST-BRG-B-001", "score": 0.6644440293312073, "sibling_score": 0.6644440293312073, "answer_score": null, "sibling_qid": "MUM-2026-06-3419-Q010", "sibling_text": "what type of thrust is taken by ball bearing and roller bearing", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Thrust block — construction, location and how thrust reaches the hull", "cross_family": false } ] }, { "qid": "MUM-2026-06-3407-Q001", "text": "Dual LGIP Liquid gas injection propane how it works ?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "ME-GI / Dual Fuel", "tid": "MUM-2026-06-3407", "tray": "new", "candidates": [ { "answer_id": "MEGI-304-003", "score": 0.5664390921592712, "sibling_score": 0.5664390921592712, "answer_score": 0.5214648157358169, "sibling_qid": "MUM-2025-09-1196-Q005", "sibling_text": "how lng is fed to the engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "3. How LNG / gas is fed, admitted or injected — and at what cycle and compression", "cross_family": false }, { "answer_id": "REEF-CHG-002", "score": 0.5662895441055298, "sibling_score": 0.5662895441055298, "answer_score": null, "sibling_qid": "KOL-2019-02-3209-Q002", "sibling_text": "refer charging both process liquid gas", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "02Where and how gas and liquid refrigerant are charged into the system", "cross_family": true }, { "answer_id": "MEGI-304-004", "score": 0.5544400811195374, "sibling_score": 0.5544400811195374, "answer_score": null, "sibling_qid": "CHE-2026-03-0490-Q009", "sibling_text": "dual fuel engine concept pilot injection purpose how it works", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "4. Pilot fuel / pilot injection — purpose and why on every firing in gas mode", "cross_family": false } ] }, { "qid": "MUM-2026-06-3407-Q002", "text": "Difference between Gas injection and Gas admission ?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "ME-GI / Dual Fuel", "tid": "MUM-2026-06-3407", "tray": "new", "candidates": [ { "answer_id": "MEGI-304-003", "score": 0.6136478781700134, "sibling_score": 0.6136478781700134, "answer_score": 0.4646274149417877, "sibling_qid": "KOC-2024-06-2049-Q003", "sibling_text": "how is the gas injection carried out", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "3. How LNG / gas is fed, admitted or injected — and at what cycle and compression", "cross_family": false }, { "answer_id": "DFUEL-566-001", "score": 0.5774862766265869, "sibling_score": 0.5774862766265869, "answer_score": null, "sibling_qid": "MUM-2026-05-3267-Q003", "sibling_text": "how gas injection and pilot fuel injection", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "How does a dual-fuel engine use gas fuel with pilot fuel injection — and can it run on both liquid and gas?", "cross_family": true }, { "answer_id": "MEGI-304-004", "score": 0.551486611366272, "sibling_score": 0.551486611366272, "answer_score": 0.3899069830775261, "sibling_qid": "CHE-2026-08-0651-Q002", "sibling_text": "pilot injection in dual fuel engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "4. Pilot fuel / pilot injection — purpose and why on every firing in gas mode", "cross_family": false } ] }, { "qid": "MUM-2026-06-3407-Q003", "text": "Which is better, gas admission or injection and why? (Methane slip) ?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Methane Slip", "tid": "MUM-2026-06-3407", "tray": "new", "candidates": [ { "answer_id": "MSLIP-330-001", "score": 0.5769822597503662, "sibling_score": 0.5769822597503662, "answer_score": 0.42686139345169066, "sibling_qid": "KOC-2024-03-0991-Q004", "sibling_text": "methane slip", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What is methane slip?", "cross_family": false }, { "answer_id": "MSLIP-330-002", "score": 0.4112562894821167, "sibling_score": null, "answer_score": 0.4112562894821167, "sibling_qid": "", "sibling_text": "environmental considerations why methane slip matters potency ch gwp100 28 under the imo lca guidelines mepc 391 81 ipcc ar5 basis above 80 over a 20 year horizon methane is short lived but intense so it dominates near term warming erodes the lng case a few percent slip converted to co equivalent can consume much of lng s co per energy advantage over fuel oil", "sibling_family": "", "via": "answer_title", "answer_title": "Environmental considerations — why methane slip matters", "cross_family": false }, { "answer_id": "MSLIP-330-003", "score": 0.39979724436998365, "sibling_score": null, "answer_score": 0.39979724436998365, "sibling_qid": "", "sibling_text": "what is methane slip in a diesel engine and in a boiler same definition both plants methane entering the combustion space but leaving unburned in the flue or exhaust gas engine mechanisms cyclic combustion in a cooled enclosure crevice volumes wall quench layer scavenge overlap short circuit lean charge misfire concept dependent premixed otto worst high pressure diesel cycle least", "sibling_family": "", "via": "answer_title", "answer_title": "What is methane slip in a diesel engine and in a boiler?", "cross_family": false } ] }, { "qid": "MUM-2026-06-3407-Q005", "text": "Exhaust gas boiler and economizer difference ?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2026-06-3407", "tray": "new", "candidates": [ { "answer_id": "ECON-EGB-002", "score": 0.590461015701294, "sibling_score": 0.590461015701294, "answer_score": 0.5178859651088714, "sibling_qid": "KOL-2022-09-1708-Q003", "sibling_text": "economiser y used superheated steam", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Purpose, efficiency, heat recovery, turn ratio, steam quality & back-pressure", "cross_family": true }, { "answer_id": "CMPB-561-003", "score": 0.5717172026634216, "sibling_score": 0.5717172026634216, "answer_score": null, "sibling_qid": "KOL-2023-07-1743-Q005", "sibling_text": "4 advantage of composite boiler w r t to exhaust gas boiler and conventional boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Advantages of a composite boiler over an exhaust-gas and a conventional boiler", "cross_family": true }, { "answer_id": "COT-P02-03", "score": 0.5493959784507751, "sibling_score": 0.5493959784507751, "answer_score": 0.48767454624176027, "sibling_qid": "KOL-2022-05-0639-Q002", "sibling_text": "advantage of igg over inert gas system from boiler flue wanted to hear something special", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Compare a boiler-flue inert-gas system with a dedicated inert-gas generator and explain why suitable boiler flue gas—not main-engine exhaust—is normally used.", "cross_family": true } ] }, { "qid": "MUM-2026-06-3409-Q003", "text": "What is hydrogen fire ?", "family": "Boilers - Operations & Firing", "subtopic": "Soot/Iron/Hydrogen Fire", "tid": "MUM-2026-06-3409", "tray": "new", "candidates": [ { "answer_id": "SIH-FIRE-002", "score": 0.6238506436347961, "sibling_score": 0.6238506436347961, "answer_score": null, "sibling_qid": "MUM-2026-06-3553-Q004", "sibling_text": "soot fire iron fire hydrogen fire", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Explain soot fire, hydrogen fire and iron/metal fire in a boiler / EGB, with the temperature ranges", "cross_family": false }, { "answer_id": "SIH-FIRE-003", "score": 0.5279275178909302, "sibling_score": 0.5279275178909302, "answer_score": 0.42951370179653164, "sibling_qid": "KOL-2017-08-1322-Q005", "sibling_text": "iron fire dont tell me the temp tell the chemical reactions", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Iron fire — what are the chemical reactions involved?", "cross_family": false }, { "answer_id": "UPT-FIRE-001", "score": 0.4901215136051178, "sibling_score": 0.4901215136051178, "answer_score": null, "sibling_qid": "MUM-2026-03-0999-Q005", "sibling_text": "uptake fire", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "The 4/E reports an uptake fire — your actions as 2/E", "cross_family": false } ] }, { "qid": "MUM-2026-06-3410-Q001", "text": "Load test of main engine ?", "family": "2-Stroke - Operations & General", "subtopic": "", "tid": "MUM-2026-06-3410", "tray": "new", "candidates": [ { "answer_id": "ETP-344-P03-010", "score": 0.5358155369758606, "sibling_score": 0.5358155369758606, "answer_score": 0.35068627297878263, "sibling_qid": "CHE-2025-08-0426-Q013", "sibling_text": "function test on me engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Function tests on the main engine (ME electronic engine)", "cross_family": true }, { "answer_id": "CPP-GRM-05", "score": 0.5275349617004395, "sibling_score": 0.5275349617004395, "answer_score": null, "sibling_qid": "KOC-2025-02-1030-Q007", "sibling_text": "define static and dynamic load in engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Static and dynamic engine loads", "cross_family": true }, { "answer_id": "CPP-POL-01", "score": 0.5270470380783081, "sibling_score": 0.5270470380783081, "answer_score": 0.3630939245223999, "sibling_qid": "MUM-2026-07-3767-Q014", "sibling_text": "main engine performance evaluation me engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Why and how is a main-engine performance test prepared, taken and assessed?", "cross_family": true } ] }, { "qid": "MUM-2026-06-3410-Q004", "text": "FAME in detail?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Bio Fuel / Methanol / Ammonia", "tid": "MUM-2026-06-3410", "tray": "new", "candidates": [ { "answer_id": "BIO-FUEL-005", "score": 0.5627120733261108, "sibling_score": 0.5627120733261108, "answer_score": null, "sibling_qid": "MUM-2026-01-0674-Q008", "sibling_text": "what is fame", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Biofuel and FAME as marine fuel", "cross_family": false }, { "answer_id": "EFBF-330-004", "score": 0.5622968077659607, "sibling_score": 0.5622968077659607, "answer_score": 0.2088296502828598, "sibling_qid": "MUM-2026-07-3684-Q003", "sibling_text": "what is fame", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "What is FAME?", "cross_family": false }, { "answer_id": "FQCC-583-A-004", "score": 0.5622231364250183, "sibling_score": 0.5622231364250183, "answer_score": 0.21144163012504577, "sibling_qid": "MUM-2026-06-3392-Q001", "sibling_text": "what is fame", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "FAME — what it is, why it is blended, and the limits", "cross_family": false } ] }, { "qid": "MUM-2026-06-3411-Q005", "text": "Working of hydrogen ?", "family": "SOLAS - Fire Safety", "subtopic": "Container Firefighting / HydroPen", "tid": "MUM-2026-06-3411", "tray": "new", "candidates": [ { "answer_id": "BIO-FUEL-002", "score": 0.5262441039085388, "sibling_score": 0.5262441039085388, "answer_score": null, "sibling_qid": "MUM-2026-02-1281-Q008", "sibling_text": "gren hydrogen blue hydrogen", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Green, blue and grey hydrogen and ammonia — what the colours mean", "cross_family": true }, { "answer_id": "ALT-FUEL-006", "score": 0.49682116508483887, "sibling_score": 0.49682116508483887, "answer_score": 0.40979544520378114, "sibling_qid": "KOC-2024-01-0285-Q004", "sibling_text": "hydrogen technology", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is hydrogen technology as an alternative marine fuel?", "cross_family": true }, { "answer_id": "LH-ELEC-001", "score": 0.49359869956970215, "sibling_score": 0.49359869956970215, "answer_score": null, "sibling_qid": "MUM-2023-12-2214-Q001", "sibling_text": "where do we use low hydrogen electrodes", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "1. Where are low-hydrogen electrodes used onboard?", "cross_family": true } ] }, { "qid": "MUM-2026-06-3412-Q005", "text": "Fixed fire fighting system for cargo hold and cross ?", "family": "SOLAS - Fire Safety", "subtopic": "Cargo Hold Fire", "tid": "MUM-2026-06-3412", "tray": "review", "candidates": [ { "answer_id": "CH-FIRE-002", "score": 0.8198885321617126, "sibling_score": 0.8198885321617126, "answer_score": 0.5659365653991699, "sibling_qid": "MUM-2025-10-0518-Q005", "sibling_text": "fixed fire fighting system for cargo hold and xq", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Cargo hold fixed firefighting / extinguishing arrangements", "cross_family": false }, { "answer_id": "FFF-A-001", "score": 0.8107030987739563, "sibling_score": 0.8107030987739563, "answer_score": null, "sibling_qid": "MUM-2025-05-0270-Q001", "sibling_text": "fixed fire fighting system for cargo side", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fixed firefighting on deck and in the cargo area — tankers, chemical and gas carriers", "cross_family": false }, { "answer_id": "FIXED-FF-B-001", "score": 0.8082576394081116, "sibling_score": 0.8082576394081116, "answer_score": null, "sibling_qid": "MUM-2022-04-0010-Q004", "sibling_text": "fixed system for cargo fire fighting", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fixed fire-fighting systems carried onboard and the risks they protect", "cross_family": false } ] }, { "qid": "MUM-2026-06-3414-Q002", "text": "How bulk carrier is different from container ship in construction?", "family": "Cargo Ops - Bulk Carriers", "subtopic": "Container Cargo / Fire", "tid": "MUM-2026-06-3414", "tray": "review", "candidates": [ { "answer_id": "CONT-FIRE-FINAL-1-004", "score": 0.7693596482276917, "sibling_score": 0.7693596482276917, "answer_score": 0.5577561616897583, "sibling_qid": "CHE-2026-05-0544-Q002", "sibling_text": "container ship construction difference", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Container ship construction differences and the torsion box", "cross_family": false }, { "answer_id": "DBTB-A-002", "score": 0.739626407623291, "sibling_score": 0.739626407623291, "answer_score": null, "sibling_qid": "CHE-2025-10-0072-Q015", "sibling_text": "bulk carriers and container construction difference", "sibling_family": "", "via": "sibling", "answer_title": "Double-bottom tanks: purpose, advantages, disadvantages and stability effect", "cross_family": false }, { "answer_id": "BC-IMSBC-002", "score": 0.6949920058250427, "sibling_score": 0.6949920058250427, "answer_score": 0.5524909615516662, "sibling_qid": "MUM-2022-08-0040-Q002", "sibling_text": "since i sailed on container and bulk carrier he started with what s the design difference the bulbous bow of container and bulk carrier and why it is so", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "2. Bulk carrier construction and structural design", "cross_family": false } ] }, { "qid": "MUM-2026-06-3414-Q003", "text": "Why corrugation is vertical not horizontal?", "family": "Ship Construction & Stability", "subtopic": "Bulkhead Types", "tid": "MUM-2026-06-3414", "tray": "new", "candidates": [ { "answer_id": "BHD-TYP-C-001", "score": 0.4885013997554779, "sibling_score": 0.4885013997554779, "answer_score": 0.38692758828401563, "sibling_qid": "MUM-2024-07-0187-Q003", "sibling_text": "why corrugated b h have more strength cross question on the formula for strength", "sibling_family": "", "via": "sibling", "answer_title": "Corrugated bulkhead — what it is, where used, why stronger than plain", "cross_family": false }, { "answer_id": "BM-SF-CF-001", "score": 0.4309365451335907, "sibling_score": 0.4309365451335907, "answer_score": null, "sibling_qid": "KOL-2026-09-4308-Q001", "sibling_text": "gz curve angle of contraflexure", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Point (“angle”) of contraflexure — what it is and how to find it", "cross_family": false }, { "answer_id": "KGF-A-006", "score": 0.4275249242782593, "sibling_score": 0.4275249242782593, "answer_score": null, "sibling_qid": "MUM-2026-04-2992-Q002", "sibling_text": "type of longitudinal and transverse structure", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Longitudinal & transverse framing systems", "cross_family": false } ] }, { "qid": "MUM-2026-06-3414-Q004", "text": "B15 and B60 as per load line convention?", "family": "Ship Construction & Stability", "subtopic": "Load Line Convention", "tid": "MUM-2026-06-3414", "tray": "new", "candidates": [ { "answer_id": "LLST-AB-002", "score": 0.6022665500640869, "sibling_score": 0.6022665500640869, "answer_score": null, "sibling_qid": "KOC-2025-10-0671-Q006", "sibling_text": "b60 load line", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false }, { "answer_id": "SFP-AB-004", "score": 0.5648444294929504, "sibling_score": 0.5648444294929504, "answer_score": null, "sibling_qid": "KOC-2026-08-2121-Q003", "sibling_text": "b60 b100", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "What are B-60 and B-100 divisions?", "cross_family": true }, { "answer_id": "A60-BCLASS-002", "score": 0.4746590256690979, "sibling_score": 0.4746590256690979, "answer_score": null, "sibling_qid": "KOC-2025-03-0583-Q008", "sibling_text": "what is a 60 and b 15 what is a class division and b class division", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "A, B and C class divisions — and where they are used", "cross_family": true } ] }, { "qid": "MUM-2026-06-3414-Q006", "text": "How the moisture in the cargo will affect the stability of ship?", "family": "Ship Construction & Stability", "subtopic": "Container Stability", "tid": "MUM-2026-06-3414", "tray": "new", "candidates": [ { "answer_id": "STAB-SD-A-001", "score": 0.6323683857917786, "sibling_score": 0.6323683857917786, "answer_score": null, "sibling_qid": "MUM-2026-06-3381-Q006", "sibling_text": "intact stability criteria for all ships including container timber and grain", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Intact stability and the 2008 IS Code criteria", "cross_family": false }, { "answer_id": "FSE-P01-001", "score": 0.5920531153678894, "sibling_score": 0.5920531153678894, "answer_score": null, "sibling_qid": "CHE-2026-09-3921-Q009", "sibling_text": "will free surface effect happen in cargo tanks of bulk carrier", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "What is free surface effect? Explain the basic concept.", "cross_family": false }, { "answer_id": "DS-P04-004", "score": 0.5896772146224976, "sibling_score": 0.5896772146224976, "answer_score": null, "sibling_qid": "MUM-2026-09-3983-Q005", "sibling_text": "dynamic stability wrt dry bulk cargo", "sibling_family": "Ship Construction & Naval Architecture", "via": "sibling", "answer_title": "Damage stability requirements for bulk carriers", "cross_family": true } ] }, { "qid": "MUM-2026-06-3415-Q008", "text": "super heater location, connections ?", "family": "Refrigeration & AC", "subtopic": "Sub-cooling / Superheat", "tid": "MUM-2026-06-3415", "tray": "new", "candidates": [ { "answer_id": "TCM-374-001", "score": 0.5649409294128418, "sibling_score": 0.5649409294128418, "answer_score": null, "sibling_qid": "KOC-2026-03-2013-Q002", "sibling_text": "location of tank cleaning machine heater", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Overhaul, inspection and intervals of a tank-cleaning machine (with heater and pump)", "cross_family": true }, { "answer_id": "REF-SCSH-002", "score": 0.5517674088478088, "sibling_score": 0.5517674088478088, "answer_score": null, "sibling_qid": "KOL-2026-04-2054-Q003", "sibling_text": "super heater in reefer ac", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Superheat in refrigeration — purpose, adjustment, importance and confirming suction superheat", "cross_family": false }, { "answer_id": "REFR-FLT-002", "score": 0.5377436876296997, "sibling_score": 0.5377436876296997, "answer_score": null, "sibling_qid": "KOL-2016-09-3001-Q005", "sibling_text": "hot gas defrosting where is defrost pipe connection given", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Evaporator defrosting: methods, control, and defrost faults", "cross_family": false } ] }, { "qid": "MUM-2026-06-3415-Q009", "text": "how to define super heat?", "family": "Refrigeration & AC", "subtopic": "Sub-cooling / Superheat", "tid": "MUM-2026-06-3415", "tray": "new", "candidates": [ { "answer_id": "REF-SCSH-002", "score": 0.5442309379577637, "sibling_score": 0.5442309379577637, "answer_score": 0.3692034900188446, "sibling_qid": "KOL-2021-03-1580-Q003", "sibling_text": "what is superheat why is it required", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Superheat in refrigeration — purpose, adjustment, importance and confirming suction superheat", "cross_family": false }, { "answer_id": "EQ-LINE-003", "score": 0.5335888862609863, "sibling_score": 0.5335888862609863, "answer_score": null, "sibling_qid": "KOL-2020-01-1512-Q001", "sibling_text": "tev equalising line degree of superheat and supercool", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "TEV working principle — internal vs external equalising, degree of superheat and supercool", "cross_family": false }, { "answer_id": "TEV-TXV-002", "score": 0.5088938474655151, "sibling_score": 0.5088938474655151, "answer_score": null, "sibling_qid": "KOC-2026-04-2020-Q006", "sibling_text": "tev purpose cross what is super heat what is saturation point", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "TEV / TXV — purpose, construction, location and working", "cross_family": false } ] }, { "qid": "MUM-2026-06-3416-Q001", "text": "Type of main engine?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-06-3416", "tray": "review", "candidates": [ { "answer_id": "ENG-NOM-005", "score": 0.7823894023895264, "sibling_score": 0.7823894023895264, "answer_score": null, "sibling_qid": "MUM-2026-09-3880-Q001", "sibling_text": "main engine type", "sibling_family": "2-Stroke - Operations & General", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true }, { "answer_id": "CTRL-TL-002", "score": 0.7694774270057678, "sibling_score": 0.7694774270057678, "answer_score": null, "sibling_qid": "MUM-2026-03-1988-Q001", "sibling_text": "type of main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Function of a controller, and types used on board", "cross_family": false }, { "answer_id": "ETP-344-P03-001", "score": 0.7289209961891174, "sibling_score": 0.7289209961891174, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false } ] }, { "qid": "MUM-2026-06-3416-Q003", "text": "What is lead, who to measure?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Cam & Lead", "tid": "MUM-2026-06-3416", "tray": "new", "candidates": [ { "answer_id": "FCAM-LEAD-P04-001", "score": 0.5598165392875671, "sibling_score": 0.5598165392875671, "answer_score": 0.28207112550735475, "sibling_qid": "KOL-2025-05-3781-Q004", "sibling_text": "pump lead cam lead how to measure", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel cam lead, cam profile, negative cam and cam slip", "cross_family": false }, { "answer_id": "FCL-P01-001", "score": 0.48655277490615845, "sibling_score": 0.48655277490615845, "answer_score": 0.34301190078258514, "sibling_qid": "MUM-2026-06-3354-Q006", "sibling_text": "fuel pump lead significance and how to measure", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel pump lead and fuel cam lead: meaning, measurement, significance and adjustment", "cross_family": false }, { "answer_id": "FCL-P03-003", "score": 0.4592026174068451, "sibling_score": 0.4592026174068451, "answer_score": null, "sibling_qid": "KOL-2023-10-3646-Q003", "sibling_text": "sulzur fuel pump lead how to measure where dial gauge how to get reading exact value of lead", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Sulzer / RTA fuel pump timing and lead", "cross_family": false } ] }, { "qid": "MUM-2026-06-3417-Q009", "text": "Boiler safety valve type n function?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2026-06-3417", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.6927995085716248, "sibling_score": 0.6927995085716248, "answer_score": null, "sibling_qid": "KOC-2026-05-0034-Q010", "sibling_text": "boiler safety valve types and how safety valve is set complete procedures", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.6852571368217468, "sibling_score": 0.6852571368217468, "answer_score": null, "sibling_qid": "MUM-2026-05-3281-Q004", "sibling_text": "setting of boiler safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "ACRV-005", "score": 0.6821589469909668, "sibling_score": 0.6821589469909668, "answer_score": null, "sibling_qid": "MUM-2026-03-1001-Q003", "sibling_text": "boiler safety valve blowdown", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": false } ] }, { "qid": "MUM-2026-06-3418-Q009", "text": "Why D/4? Why not D/2?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2026-06-3418", "tray": "new", "candidates": [ { "answer_id": "BWM-D1D2-P03-001", "score": 0.4315106272697449, "sibling_score": 0.4315106272697449, "answer_score": null, "sibling_qid": "KOC-2024-09-0408-Q013", "sibling_text": "explain d2", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Regulation D-2 — ballast water performance / discharge standardHigh", "cross_family": true }, { "answer_id": "BWM-D1D2-P04-002", "score": 0.4306343197822571, "sibling_score": 0.4306343197822571, "answer_score": null, "sibling_qid": "KOC-2022-01-0048-Q013", "sibling_text": "bwms code explain d1 d2 d4", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "D-2 standard and the BWMS Code (ex-G8) — type approval of treatment systems", "cross_family": true }, { "answer_id": "BWMS-A-002", "score": 0.4249058961868286, "sibling_score": 0.4249058961868286, "answer_score": 0.24517150819301606, "sibling_qid": "MUM-2024-09-0206-Q005", "sibling_text": "why it is d1 d2 regulation and not a1 or b1", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "D-1 versus D-2: the two ballast water standards", "cross_family": true } ] }, { "qid": "MUM-2026-06-3419-Q001", "text": "Which company ?", "family": "Status & Introduction", "subtopic": "Company Introduction", "tid": "MUM-2026-06-3419", "tray": "new", "candidates": [ { "answer_id": "LLST-AB-002", "score": 0.6105014681816101, "sibling_score": 0.6105014681816101, "answer_score": null, "sibling_qid": "KOC-2026-03-0873-Q001", "sibling_text": "type of ship company", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false }, { "answer_id": "ETP-344-P03-001", "score": 0.5505508780479431, "sibling_score": 0.5505508780479431, "answer_score": null, "sibling_qid": "KOC-2026-05-0046-Q002", "sibling_text": "company and type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "EICU-MAN-P02-002", "score": 0.5456805229187012, "sibling_score": 0.5456805229187012, "answer_score": null, "sibling_qid": "KOC-2025-10-2078-Q002", "sibling_text": "mithsubshi uec manuering", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Manoeuvring on RT-flex, Sulzer RTA and Mitsubishi UEC", "cross_family": true } ] }, { "qid": "MUM-2026-06-3419-Q002", "text": "Show me 360 degree of your room ?", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-06-3419", "tray": "new", "candidates": [ { "answer_id": "CO2-SYS-005", "score": 0.46247634291648865, "sibling_score": 0.46247634291648865, "answer_score": null, "sibling_qid": "CHE-2026-03-0126-Q003", "sibling_text": "co2 room when you enter what you notice 1st", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 system safeties, CO2-room requirements, alarms and ventilation", "cross_family": true }, { "answer_id": "PUMPRM-B-004", "score": 0.43837177753448486, "sibling_score": 0.43837177753448486, "answer_score": null, "sibling_qid": "KOC-2021-07-0011-Q004", "sibling_text": "pp room safety", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Safeties provided in a cargo pump room", "cross_family": true }, { "answer_id": "REEF-SAFE-001", "score": 0.43635740876197815, "sibling_score": 0.43635740876197815, "answer_score": null, "sibling_qid": "KOL-2019-11-1494-Q005", "sibling_text": "refer room safety", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Refrigeration plant and reefer-room safeties — what protects the machinery, and what protects the man?", "cross_family": true } ] }, { "qid": "MUM-2026-06-3419-Q003", "text": "Status of other functions ?", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-06-3419", "tray": "new", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.5270563364028931, "sibling_score": 0.5270563364028931, "answer_score": null, "sibling_qid": "MUM-2026-05-3187-Q001", "sibling_text": "status of other orals and written", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": true }, { "answer_id": "IMO-CODES-P03-002", "score": 0.514052152633667, "sibling_score": 0.514052152633667, "answer_score": null, "sibling_qid": "MUM-2026-03-0815-Q003", "sibling_text": "which function", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": true }, { "answer_id": "AVR-EXC-B-001", "score": 0.5101697444915771, "sibling_score": 0.5101697444915771, "answer_score": null, "sibling_qid": "KOC-2025-12-1676-Q004", "sibling_text": "explain status avr", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Explain the AVR working principle and control-loop operation.", "cross_family": true } ] }, { "qid": "MUM-2026-06-3419-Q004", "text": "Type of engine sailed after class 4(ME-C)?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-06-3419", "tray": "new", "candidates": [ { "answer_id": "MEB-MEC-P03-001", "score": 0.5956115126609802, "sibling_score": 0.5956115126609802, "answer_score": null, "sibling_qid": "KOL-2022-06-1691-Q009", "sibling_text": "type of main engine sailed on diff bw me c b crosshead design in man lubrication", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "ME-B vs ME-C — the core difference", "cross_family": true }, { "answer_id": "AE-CRP-005", "score": 0.5859138369560242, "sibling_score": 0.5859138369560242, "answer_score": null, "sibling_qid": "CHE-2026-03-0250-Q003", "sibling_text": "type of engines sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "MCC-MEB-P01-001", "score": 0.56822270154953, "sibling_score": 0.56822270154953, "answer_score": null, "sibling_qid": "KOL-2021-10-1628-Q001", "sibling_text": "type of engines done smc c modifications advantages further engine improvements in me type engines", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "MC-C (\"Compact\") engine — design and the main constructional differences from MC", "cross_family": true } ] }, { "qid": "MUM-2026-06-3419-Q008", "text": "FCM module in engine ?", "family": "Automation & Controls", "subtopic": "", "tid": "MUM-2026-06-3419", "tray": "new", "candidates": [ { "answer_id": "SFOC-003", "score": 0.45291998982429504, "sibling_score": 0.45291998982429504, "answer_score": null, "sibling_qid": "MUM-2026-05-3211-Q001", "sibling_text": "sfoc of ur engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What is the SFOC of your main engine? With BHP, stroke and cylinder oil consumption", "cross_family": true }, { "answer_id": "CTRL-TL-002", "score": 0.4129984378814697, "sibling_score": 0.4129984378814697, "answer_score": null, "sibling_qid": "MUM-2025-06-1133-Q004", "sibling_text": "main engine me type of controller", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Function of a controller, and types used on board", "cross_family": false }, { "answer_id": "ETP-344-P03-001", "score": 0.40839090943336487, "sibling_score": 0.40839090943336487, "answer_score": null, "sibling_qid": "MUM-2024-07-1084-Q005", "sibling_text": "mc engine ka btao", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": true } ] }, { "qid": "MUM-2026-06-3420-Q001", "text": "Type of ship ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-06-3420", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8362272381782532, "sibling_score": 0.8362272381782532, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8015320301055908, "sibling_score": 0.8015320301055908, "answer_score": 0.5472018480300903, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8003027439117432, "sibling_score": 0.8003027439117432, "answer_score": 0.5214664876461029, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2026-06-3420-Q006", "text": "Educator and ejector difference ?", "family": "Fresh Water & Domestic Systems", "subtopic": "FWG / RO", "tid": "MUM-2026-06-3420", "tray": "new", "candidates": [ { "answer_id": "FWG-RO-001", "score": 0.40408143401145935, "sibling_score": 0.40408143401145935, "answer_score": null, "sibling_qid": "MUM-2025-09-2396-Q004", "sibling_text": "steam ejector and air ejector", "sibling_family": "Fresh Water & Domestic Systems", "via": "sibling", "answer_title": "How is vacuum created in the FWG, why does it run under vacuum, and what if the vacuum will not come?", "cross_family": false }, { "answer_id": "AV6-P05-02", "score": 0.3822806477546692, "sibling_score": 0.3822806477546692, "answer_score": null, "sibling_qid": "KOL-2025-09-1062-Q010", "sibling_text": "aer and eeoi difference", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "AER versus EEOI — formulas, denominators and calculation period", "cross_family": true }, { "answer_id": "EEDI-C-002", "score": 0.3797198534011841, "sibling_score": 0.3797198534011841, "answer_score": 0.2881603494286537, "sibling_qid": "KOC-2025-07-0630-Q006", "sibling_text": "eedi eeoi difference", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "EEDI versus EEOI — what is the difference?", "cross_family": true } ] }, { "qid": "MUM-2026-06-3420-Q008", "text": "Crane hook material , how it is made and composition?", "family": "Workshop & Welding", "subtopic": "Forge / Forging", "tid": "MUM-2026-06-3420", "tray": "review", "candidates": [ { "answer_id": "CRANE-ER-008", "score": 0.6665971875190735, "sibling_score": 0.6665971875190735, "answer_score": 0.5843404471874237, "sibling_qid": "MUM-2026-05-3139-Q005", "sibling_text": "engine room crane hook material", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "ER crane hook: material & safety considerations", "cross_family": true }, { "answer_id": "CRANE-ER-005", "score": 0.5527445077896118, "sibling_score": 0.5527445077896118, "answer_score": null, "sibling_qid": "KOL-2026-07-4281-Q001", "sibling_text": "deficiency of crane hook", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Limit switches, cut-outs & response to crane faults or failure", "cross_family": true }, { "answer_id": "WELD-B-001", "score": 0.5439505577087402, "sibling_score": 0.5439505577087402, "answer_score": null, "sibling_qid": "KOL-2020-01-3311-Q002", "sibling_text": "in a deck crane jib one crack is identified how you repair that crack and jib crane material", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding & crack-repair of aluminium and cast iron, including metal stitching", "cross_family": false } ] }, { "qid": "MUM-2026-06-3420-Q010", "text": "During discharging one COPT is running , chief officer demands another COPT , how will u give ?", "family": "Cargo Ops - Tankers", "subtopic": "COPT", "tid": "MUM-2026-06-3420", "tray": "new", "candidates": [ { "answer_id": "ESE-P02-004", "score": 0.5178834795951843, "sibling_score": 0.5178834795951843, "answer_score": null, "sibling_qid": "KOL-2016-05-0002-Q006", "sibling_text": "entry to engine room after co2 discharge how will u guide being incharge", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "ESE-P02-04. Entry to the engine room after CO2 flooding", "cross_family": true }, { "answer_id": "AEDEC-291-001", "score": 0.5159838199615479, "sibling_score": 0.5159838199615479, "answer_score": null, "sibling_qid": "KOL-2022-01-3999-Q008", "sibling_text": "auxiliary engine overhaul how will you proceed got disconnected upon rejoin he was angry and said repeat both", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "1. AE decarb / overhaul — preparation and full procedure", "cross_family": true }, { "answer_id": "TCM-374-005", "score": 0.5096333622932434, "sibling_score": 0.5096333622932434, "answer_score": null, "sibling_qid": "KOC-2023-08-0214-Q003", "sibling_text": "how will you prepare your ship for gas freeying operation after discharging as you are going for dd", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Gas-freeing a tanker after discharge or before dry dock (why through the IG system)", "cross_family": false } ] }, { "qid": "MUM-2026-06-3420-Q011", "text": "Difference in piston ring gauging and lamella gauging ?", "family": "2-Stroke - Components (Other)", "subtopic": "Piston Rings", "tid": "MUM-2026-06-3420", "tray": "new", "candidates": [ { "answer_id": "PRING-CLR-A-002", "score": 0.5771098732948303, "sibling_score": 0.5771098732948303, "answer_score": 0.43616440892219543, "sibling_qid": "CHE-2021-07-0183-Q002", "sibling_text": "piston ring calibration other than clearances groove measurement", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston-ring clearances and calibration — butt, axial, radial, wear limits", "cross_family": false }, { "answer_id": "PRING-CLR-A-003", "score": 0.5771045088768005, "sibling_score": 0.5771045088768005, "answer_score": null, "sibling_qid": "MUM-2026-03-2937-Q007", "sibling_text": "difference between piston ring groove and scraper ring groove", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston-ring groove versus scraper-ring groove", "cross_family": false }, { "answer_id": "CYL-LINER-P01-001", "score": 0.5644916892051697, "sibling_score": 0.5644916892051697, "answer_score": null, "sibling_qid": "KOL-2023-11-3658-Q006", "sibling_text": "piston ring calibration liner calibration", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Carrying out main-engine liner calibration (gauging)", "cross_family": false } ] }, { "qid": "MUM-2026-06-3422-Q003", "text": "Types of motor starter?", "family": "Electrical - Motors & Starters", "subtopic": "Type of Starter Decision", "tid": "MUM-2026-06-3422", "tray": "review", "candidates": [ { "answer_id": "STR-DEC-A-001", "score": 0.827390730381012, "sibling_score": 0.827390730381012, "answer_score": 0.6237507164478302, "sibling_qid": "KOC-2022-10-1203-Q003", "sibling_text": "different types of starters even vfd is a starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "IMSP-002", "score": 0.8152308464050293, "sibling_score": 0.8152308464050293, "answer_score": null, "sibling_qid": "MUM-2025-06-1536-Q004", "sibling_text": "types of starting arrangement for a motor name all starters explain soft starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What types of starter are used onboard? Name and explain the starting methods for a three-phase induction motor, including the soft starter.", "cross_family": false }, { "answer_id": "SOFTSTART-P03-001", "score": 0.8024066090583801, "sibling_score": 0.8024066090583801, "answer_score": null, "sibling_qid": "KOL-2018-08-2222-Q002", "sibling_text": "soft starter and star delta starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Star-delta starter versus soft starter", "cross_family": false } ] }, { "qid": "MUM-2026-06-3422-Q006", "text": "What is fail safe? where we use and how it work ?", "family": "Automation & Controls", "subtopic": "Fail Safe", "tid": "MUM-2026-06-3422", "tray": "new", "candidates": [ { "answer_id": "FSF-BF073-001", "score": 0.5505033135414124, "sibling_score": 0.5505033135414124, "answer_score": 0.4243185192346573, "sibling_qid": "MUM-2026-03-2021-Q005", "sibling_text": "what is fail safe where we use and how it work", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "What is fail safe — where do we use it on board and how does it work?", "cross_family": false }, { "answer_id": "AUC-P03-05", "score": 0.5188955664634705, "sibling_score": 0.5188955664634705, "answer_score": 0.3843689069151878, "sibling_qid": "MUM-2026-07-3698-Q003", "sibling_text": "fail set and failsafe", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Fail-safe, fail-set and redundancy — three-way jacket-water valve on loss of signal", "cross_family": false }, { "answer_id": "CTRL-TL-010", "score": 0.5099058747291565, "sibling_score": 0.5099058747291565, "answer_score": null, "sibling_qid": "NOI-2026-09-0014-Q003", "sibling_text": "fail safe system where it is used onboard", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Pneumatic control: nozzle-flapper, DP, actuators and fail-safe", "cross_family": false } ] }, { "qid": "MUM-2026-06-3423-Q004", "text": "if there are 2 battery of 100 Ah ,how will you make 200AH Capacity ?", "family": "Electrical - Batteries & DC Systems", "subtopic": "Battery Basics / Types", "tid": "MUM-2026-06-3423", "tray": "review", "candidates": [ { "answer_id": "BATT-TYPE-004", "score": 0.8175838589668274, "sibling_score": 0.8175838589668274, "answer_score": 0.49917799830436704, "sibling_qid": "MUM-2025-11-1774-Q004", "sibling_text": "if there are 2 baatery of 100 ah how will you make 200ah capicity", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "What does 100 Ah mean, why rate capacity in Ah not volts, and how do you manage a capacity mismatch?", "cross_family": false }, { "answer_id": "CSD-BF036-006", "score": 0.6844249367713928, "sibling_score": 0.6844249367713928, "answer_score": null, "sibling_qid": "MUM-2026-06-3371-Q003", "sibling_text": "battery solas requirement 200amp hr required available 100amp hr how will you connect", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "Explain crankshaft deflection.", "cross_family": false }, { "answer_id": "BDC-P02-01", "score": 0.6612854599952698, "sibling_score": 0.6612854599952698, "answer_score": 0.4586505889892578, "sibling_qid": "KOL-2021-01-2415-Q002", "sibling_text": "battery onboard capacity series or parallel connected", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "Battery rating and capacity — what an Ah number tells you about the battery", "cross_family": false } ] }, { "qid": "MUM-2026-06-3426-Q002", "text": "Shapoli ?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Engine Derating", "tid": "MUM-2026-06-3426", "tray": "new", "candidates": [ { "answer_id": "CRB-006", "score": 0.3949897885322571, "sibling_score": 0.3949897885322571, "answer_score": null, "sibling_qid": "MUM-2026-04-1319-Q007", "sibling_text": "why i shape", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Why is the connecting rod made I-section (or H-section)? Explain section modulus and Young's modulus.", "cross_family": true }, { "answer_id": "EEXI-005", "score": 0.37807562947273254, "sibling_score": 0.37807562947273254, "answer_score": null, "sibling_qid": "MUM-2026-05-3261-Q004", "sibling_text": "shapoli shaft power limitation", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "The Engine Power Limiter — how it is fitted on MC and ME engines, the setpoint, ShaPoLi, the records, and derating to meet EEXI", "cross_family": true }, { "answer_id": "ENG-DERATE-005", "score": 0.37513694167137146, "sibling_score": 0.37513694167137146, "answer_score": 0.2378966972231865, "sibling_qid": "MUM-2025-09-1186-Q008", "sibling_text": "derating and epl and shapoli", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What are engine limiters in relation to derating — EPL and ShaPoLi?", "cross_family": false } ] }, { "qid": "MUM-2026-06-3426-Q004", "text": "MGO cooler?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "LO Cooler", "tid": "MUM-2026-06-3426", "tray": "new", "candidates": [ { "answer_id": "LO-CLR-007", "score": 0.5337506532669067, "sibling_score": 0.5337506532669067, "answer_score": null, "sibling_qid": "KOC-2025-12-1088-Q015", "sibling_text": "type of lo cooler in dg", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What type of lube-oil cooler is fitted on a diesel generator?", "cross_family": false }, { "answer_id": "STHX-001", "score": 0.4255984425544739, "sibling_score": 0.4255984425544739, "answer_score": null, "sibling_qid": "MUM-2026-02-1280-Q006", "sibling_text": "type of cooler type of flow", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "STHX-01 — Construction, parts, materials, tube fitting, pass arrangement and flow", "cross_family": true }, { "answer_id": "HEAT-TRT-C-003", "score": 0.42349475622177124, "sibling_score": 0.42349475622177124, "answer_score": null, "sibling_qid": "MUM-2026-03-2642-Q017", "sibling_text": "why slow cooling", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Critical temperature, quenching, slow cooling and spheroidisation", "cross_family": true } ] }, { "qid": "MUM-2026-06-3426-Q005", "text": "Grease drop point ?", "family": "Lube Oil System", "subtopic": "Grease / Dropping Point", "tid": "MUM-2026-06-3426", "tray": "new", "candidates": [ { "answer_id": "LO-TEST-P01-005", "score": 0.498073935508728, "sibling_score": 0.498073935508728, "answer_score": 0.35475228279829024, "sibling_qid": "CHE-2025-08-0415-Q006", "sibling_text": "indication of lub oil reached pour point", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Lube-oil properties, types and selection by duty", "cross_family": true }, { "answer_id": "PCD-P03-02", "score": 0.4958057999610901, "sibling_score": 0.4958057999610901, "answer_score": null, "sibling_qid": "MUM-2026-05-3219-Q012", "sibling_text": "pump greasing", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Greasing a centrifugal pump — correct method and instructing a TME", "cross_family": true }, { "answer_id": "LO-TEST-P01-001", "score": 0.48405465483665466, "sibling_score": 0.48405465483665466, "answer_score": null, "sibling_qid": "MUM-2026-09-3880-Q004", "sibling_text": "lube oil test", "sibling_family": "Lube Oil System", "via": "sibling", "answer_title": "Onboard lube-oil tests and the viscosity test", "cross_family": false } ] }, { "qid": "MUM-2026-06-3426-Q009", "text": "Ballast water Motor overheating reasons?", "family": "Electrical - Motors & Starters", "subtopic": "", "tid": "MUM-2026-06-3426", "tray": "review", "candidates": [ { "answer_id": "MNS-014", "score": 0.8517537713050842, "sibling_score": 0.8517537713050842, "answer_score": 0.5266041159629822, "sibling_qid": "MUM-2026-02-1921-Q004", "sibling_text": "ballast water motor overheating reasons", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "A motor has been running for days and is suddenly found very hot", "cross_family": false }, { "answer_id": "MNS-007", "score": 0.7029946446418762, "sibling_score": 0.7029946446418762, "answer_score": null, "sibling_qid": "MUM-2026-09-3996-Q005", "sibling_text": "motor overloading reason", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Reasons a motor goes on overload", "cross_family": false }, { "answer_id": "MNS-008", "score": 0.6937752366065979, "sibling_score": 0.6937752366065979, "answer_score": 0.5066982507705688, "sibling_qid": "KOL-2026-02-2961-Q003", "sibling_text": "motor of a heavy load machinery like compressor or lo pump one winding is heating up reasons", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "One winding heating up on a heavy-load motor — a compressor or LO pump drive", "cross_family": false } ] }, { "qid": "MUM-2026-06-3427-Q001", "text": "SAVCON survey what you check on main engine ?", "family": "Surveys - Statutory", "subtopic": "Sample Preparation - Main Engine Survey", "tid": "MUM-2026-06-3427", "tray": "review", "candidates": [ { "answer_id": "SVY-SCOPE-007", "score": 0.7477455735206604, "sibling_score": 0.7477455735206604, "answer_score": 0.4803478807210922, "sibling_qid": "MUM-2026-02-1967-Q007", "sibling_text": "what all to be check on main engine in the survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "How should the Main Engine be prepared for a safety survey?", "cross_family": false }, { "answer_id": "SVY-SCOPE-002", "score": 0.6218502521514893, "sibling_score": 0.6218502521514893, "answer_score": null, "sibling_qid": "MUM-2023-01-0079-Q004", "sibling_text": "what items to check during safcon survey in engine room", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is checked in the engine room during a SAFCON (Safety Construction) survey?", "cross_family": false }, { "answer_id": "CPP-POL-01", "score": 0.6047157049179077, "sibling_score": 0.6047157049179077, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q015", "sibling_text": "what parameters do you check when taking main engine performance", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Why and how is a main-engine performance test prepared, taken and assessed?", "cross_family": true } ] }, { "qid": "MUM-2026-06-3427-Q004", "text": "How to find leaks in suction side of bilge pump ?", "family": "Pumps - Centrifugal & PD", "subtopic": "Bilge Line / Pump", "tid": "MUM-2026-06-3427", "tray": "review", "candidates": [ { "answer_id": "PHL-001", "score": 0.7961860299110413, "sibling_score": 0.7961860299110413, "answer_score": 0.4850824773311615, "sibling_qid": "KOL-2025-11-3879-Q004", "sibling_text": "how to find leaks in suction side of bilge pump", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "There is a hole in a line — bilge suction main, sea-water line, starting-air line or steam line: your action as 2/E, and how you find the exact location", "cross_family": false }, { "answer_id": "PPS-622-004", "score": 0.7097283005714417, "sibling_score": 0.7097283005714417, "answer_score": 0.5632471203804016, "sibling_qid": "KOL-2019-02-3215-Q004", "sibling_text": "bilge pump not taking suction how to identify the problem what pressure on suction gauge if filter chocked and if hole in pipe", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "The bilge or ballast pump is not taking suction — reasons, how to identify the problem, how to rectify it. What does the suction gauge read, and what is suction head?", "cross_family": false }, { "answer_id": "PCD-P03-04", "score": 0.6900532841682434, "sibling_score": 0.6900532841682434, "answer_score": null, "sibling_qid": "CHE-2026-05-0650-Q004", "sibling_text": "main sea water pump minor leak how to identify", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Gland packing — types, and gland leakage that persists after re-packing", "cross_family": false } ] }, { "qid": "MUM-2026-06-3428-Q001", "text": "type of engine sailed ?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-06-3428", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8497133851051331, "sibling_score": 0.8497133851051331, "answer_score": null, "sibling_qid": "MUM-2026-04-1007-Q002", "sibling_text": "type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.7688729166984558, "sibling_score": 0.7688729166984558, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q001", "sibling_text": "type of ship sailed and engines details", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7366728186607361, "sibling_score": 0.7366728186607361, "answer_score": null, "sibling_qid": "KOL-2025-12-2031-Q002", "sibling_text": "type of ship and engine sailed engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "MUM-2026-06-3429-Q001", "text": "Type of engine ?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-06-3429", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.8005295395851135, "sibling_score": 0.8005295395851135, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.7929258942604065, "sibling_score": 0.7929258942604065, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-001", "score": 0.4521873891353607, "sibling_score": null, "answer_score": 0.4521873891353607, "sibling_qid": "", "sibling_text": "1 turbocharger type main engine vs generator engine compressor is centrifugal in both cases only the turbine type differs large slow speed main engine axial flow turbine single stage constant pressure system", "sibling_family": "", "via": "answer_title", "answer_title": "1. Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "MUM-2026-06-3431-Q002", "text": "What is Electronically controlled in the ME Engine ?", "family": "2-Stroke - Reversing & Maneuvering", "subtopic": "EICU / Manoeuvring System", "tid": "MUM-2026-06-3431", "tray": "new", "candidates": [ { "answer_id": "EGTP-P02-005", "score": 0.6383293271064758, "sibling_score": 0.6383293271064758, "answer_score": 0.5301112771034241, "sibling_qid": "CHE-2026-05-0541-Q001", "sibling_text": "type of engine spec explain what is me c how and what is electronically controlled explain", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "MC / MC-C / ME-C and Electronically Controlled Engines", "cross_family": true }, { "answer_id": "GOV-P02-001", "score": 0.6382172107696533, "sibling_score": 0.6382172107696533, "answer_score": null, "sibling_qid": "KOC-2023-09-1283-Q008", "sibling_text": "me electronic governor working", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Electronic governor — draw, block diagram & working", "cross_family": true }, { "answer_id": "PID-CTRL-005", "score": 0.6111205220222473, "sibling_score": 0.6111205220222473, "answer_score": null, "sibling_qid": "MUM-2026-03-1306-Q017", "sibling_text": "what is electronically controlled", "sibling_family": "2-Stroke - ME-C / Electronic Engine", "via": "sibling", "answer_title": "Open-loop, closed-loop, cascade and other control types onboard", "cross_family": true } ] }, { "qid": "MUM-2026-06-3431-Q004", "text": "What are the special conditions for furnace flashback to occur other than firing the boiler with accumulation of unburnt hydrocarbons ?", "family": "Boilers - Safety & Survey", "subtopic": "Accumulation Test", "tid": "MUM-2026-06-3431", "tray": "review", "candidates": [ { "answer_id": "ACCT-583-A-001", "score": 0.6641526818275452, "sibling_score": 0.6641526818275452, "answer_score": null, "sibling_qid": "MUM-2026-06-3431-Q003", "sibling_text": "what is boiler furnace flashback", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Explain the boiler accumulation pressure test — what it is, its purpose, and how it is carried out (including when and at what interval)", "cross_family": false }, { "answer_id": "BFM-330-003", "score": 0.5925838351249695, "sibling_score": 0.5925838351249695, "answer_score": 0.49978495240211485, "sibling_qid": "MUM-2025-12-2879-Q008", "sibling_text": "boiler running in manual mode resulting in back flow for each fire reason", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler vibration, backflow and furnace blowback during firing", "cross_family": true }, { "answer_id": "BWTEST-C-002", "score": 0.5885398983955383, "sibling_score": 0.5885398983955383, "answer_score": null, "sibling_qid": "KOC-2021-07-0920-Q007", "sibling_text": "mechanical o2 scavenging in boiler at wat temp hot well maintained", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Oxygen, hydrazine & sulphite tests — removing the main corrodent", "cross_family": false } ] }, { "qid": "MUM-2026-06-3433-Q001", "text": "Type of Ship ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-06-3433", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8362351655960083, "sibling_score": 0.8362351655960083, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8017287850379944, "sibling_score": 0.8017287850379944, "answer_score": 0.5469861209392547, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8002189993858337, "sibling_score": 0.8002189993858337, "answer_score": 0.521619999408722, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2026-06-3434-Q002", "text": "Anglo of loll ?", "family": "Ship Construction & Stability", "subtopic": "", "tid": "MUM-2026-06-3434", "tray": "new", "candidates": [ { "answer_id": "LOLL-P02-003", "score": 0.5310142040252686, "sibling_score": 0.5310142040252686, "answer_score": 0.2476748138666153, "sibling_qid": "CHE-2025-10-0071-Q003", "sibling_text": "angel of loll and list", "sibling_family": "", "via": "sibling", "answer_title": "2. Identifying loll from the jetty — loll versus list and heel", "cross_family": false }, { "answer_id": "LOLL-CORE-P01-001", "score": 0.5285897850990295, "sibling_score": 0.5285897850990295, "answer_score": 0.2829932853579521, "sibling_qid": "KOL-2025-11-1118-Q009", "sibling_text": "angle of lol", "sibling_family": "", "via": "sibling", "answer_title": "What is angle of loll?", "cross_family": false }, { "answer_id": "LOLL-P02-001", "score": 0.506069540977478, "sibling_score": 0.506069540977478, "answer_score": null, "sibling_qid": "KOC-2026-03-0853-Q004", "sibling_text": "what is angle of loll reasons for this to happen", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "4. Significance of angle of loll — and why it occurs", "cross_family": false } ] }, { "qid": "MUM-2026-06-3434-Q004", "text": "MNC and observation difference ?", "family": "ISM Code", "subtopic": "Major / Minor NC", "tid": "MUM-2026-06-3434", "tray": "new", "candidates": [ { "answer_id": "ISMNC-004", "score": 0.6360586285591125, "sibling_score": 0.6360586285591125, "answer_score": 0.3026426136493683, "sibling_qid": "MUM-2026-06-3361-Q008", "sibling_text": "nc mnc observation", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Differentiate between an observation and a non-conformity under the ISM Code.", "cross_family": false }, { "answer_id": "ISMNC-003", "score": 0.5769612193107605, "sibling_score": 0.5769612193107605, "answer_score": null, "sibling_qid": "MUM-2025-09-0464-Q004", "sibling_text": "diff between mnc and nc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Differentiate between a major non-conformity and a non-conformity under the ISM Code.", "cross_family": false }, { "answer_id": "ISM-SMC-B-002", "score": 0.5164119601249695, "sibling_score": 0.5164119601249695, "answer_score": null, "sibling_qid": "NOI-2026-09-0005-Q002", "sibling_text": "interim smc and initial smc difference", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Interim SMC — occasions, procedure and validity", "cross_family": false } ] }, { "qid": "MUM-2026-06-3434-Q005", "text": "LRIT and AIS, what info is obtained and transmitted ?", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "MUM-2026-06-3434", "tray": "new", "candidates": [ { "answer_id": "EPIRB-SART-002", "score": 0.4423314779996872, "sibling_score": 0.3632686734199524, "answer_score": 0.4423314779996872, "sibling_qid": "CHE-2026-05-0535-Q007", "sibling_text": "sart and ais sart", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "answer_title", "answer_title": "What is an AIS-SART and how does it differ from a radar SART?", "cross_family": true }, { "answer_id": "DES-571-001", "score": 0.4101880192756653, "sibling_score": 0.4101880192756653, "answer_score": null, "sibling_qid": "KOC-2023-12-1312-Q015", "sibling_text": "type of speed log onboard and doppler effect", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "The Doppler log — measuring the ship's speed by the Doppler effect", "cross_family": false }, { "answer_id": "UNL-330-001", "score": 0.4014754593372345, "sibling_score": 0.4014754593372345, "answer_score": null, "sibling_qid": "MUM-2026-05-3294-Q006", "sibling_text": "gmdss and gmdss equipment", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "What is the function of the main air compressor unloader?", "cross_family": false } ] }, { "qid": "MUM-2026-06-3434-Q006", "text": "MLC liabilities for owner ?", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2026-06-3434", "tray": "new", "candidates": [ { "answer_id": "CLC-CIV-B-003", "score": 0.5851966142654419, "sibling_score": 0.5851966142654419, "answer_score": 0.29662505388259885, "sibling_qid": "MUM-2026-04-0880-Q004", "sibling_text": "mlc what is shipowner liability", "sibling_family": "MLC", "via": "sibling", "answer_title": "LLMC: purpose, scope and limitation of maritime claims", "cross_family": false }, { "answer_id": "MLC-WRH-B-007", "score": 0.4474356174468994, "sibling_score": 0.4474356174468994, "answer_score": null, "sibling_qid": "MUM-2026-01-0701-Q002", "sibling_text": "detainable deficiency of mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false }, { "answer_id": "MLC-WRH-B-009", "score": 0.4423455595970154, "sibling_score": 0.4423455595970154, "answer_score": null, "sibling_qid": "CHE-2026-05-0608-Q012", "sibling_text": "ship owner abandoned the ship what will you do as per mlc i told financial security certificate for repartation", "sibling_family": "MLC", "via": "sibling", "answer_title": "Abandonment — financial security and repatriation", "cross_family": false } ] }, { "qid": "MUM-2026-06-3435-Q002", "text": "SEEMP all chapter ?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "SEEMP I/II/III", "tid": "MUM-2026-06-3435", "tray": "new", "candidates": [ { "answer_id": "ISM-ELEM-003", "score": 0.6320593357086182, "sibling_score": 0.6320593357086182, "answer_score": null, "sibling_qid": "KOC-2026-04-0914-Q009", "sibling_text": "ism all chapters", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": true }, { "answer_id": "SOLAS-CH-015", "score": 0.5695827007293701, "sibling_score": 0.5695827007293701, "answer_score": 0.41746186316013334, "sibling_qid": "KOC-2026-01-0790-Q004", "sibling_text": "solas all chapters", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS chapters overview - current count and scope", "cross_family": true }, { "answer_id": "AV6-P05-01", "score": 0.5558463931083679, "sibling_score": 0.5558463931083679, "answer_score": null, "sibling_qid": "KOC-2025-07-0636-Q002", "sibling_text": "seemp part 2 all sections", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP Part II — IMO DCS plan and contents", "cross_family": false } ] }, { "qid": "MUM-2026-06-3435-Q003", "text": "⁠ship owner liability in MLC ?", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2026-06-3435", "tray": "review", "candidates": [ { "answer_id": "CLC-CIV-B-003", "score": 0.7498651146888733, "sibling_score": 0.7498651146888733, "answer_score": null, "sibling_qid": "MUM-2026-04-0880-Q004", "sibling_text": "mlc what is shipowner liability", "sibling_family": "MLC", "via": "sibling", "answer_title": "LLMC: purpose, scope and limitation of maritime claims", "cross_family": false }, { "answer_id": "MLC-WRH-B-009", "score": 0.6237544417381287, "sibling_score": 0.6237544417381287, "answer_score": null, "sibling_qid": "CHE-2026-05-0608-Q012", "sibling_text": "ship owner abandoned the ship what will you do as per mlc i told financial security certificate for repartation", "sibling_family": "MLC", "via": "sibling", "answer_title": "Abandonment — financial security and repatriation", "cross_family": false }, { "answer_id": "CLC-CIV-A-001", "score": 0.5099341571331024, "sibling_score": 0.47972333431243896, "answer_score": 0.5099341571331024, "sibling_qid": "KOL-2022-11-0696-Q007", "sibling_text": "oil pollution damage why and role of shipowner features etc", "sibling_family": "Other Conventions", "via": "answer_title", "answer_title": "CLC Convention — objective, scope and shipowner liability", "cross_family": true } ] }, { "qid": "MUM-2026-06-3435-Q004", "text": "SOLAS chap 11 and 14 ?", "family": "ISPS", "subtopic": "SOLAS Ch.XI-2 Security", "tid": "MUM-2026-06-3435", "tray": "new", "candidates": [ { "answer_id": "SOLAS-CH-012", "score": 0.6268943548202515, "sibling_score": 0.6268943548202515, "answer_score": null, "sibling_qid": "KOC-2026-03-0866-Q005", "sibling_text": "solas chapter 11 and 12", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS XI-1, XI-2 and XIII - safety, security and audit", "cross_family": true }, { "answer_id": "SOLAS-OVW-003", "score": 0.5919215083122253, "sibling_score": 0.5919215083122253, "answer_score": null, "sibling_qid": "KOL-2017-07-0101-Q001", "sibling_text": "1 chapter 13 and 14 of solas", "sibling_family": "", "via": "sibling", "answer_title": "SOLAS Chapter XIV — ships operating in polar waters (Polar Code)", "cross_family": false }, { "answer_id": "SOLAS-CH-015", "score": 0.5810666680335999, "sibling_score": 0.5810666680335999, "answer_score": null, "sibling_qid": "MUM-2025-03-0242-Q006", "sibling_text": "solas chap 11", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS chapters overview - current count and scope", "cross_family": true } ] }, { "qid": "MUM-2026-06-3435-Q005", "text": "EEXI and calculation ?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "EEXI", "tid": "MUM-2026-06-3435", "tray": "review", "candidates": [ { "answer_id": "EECS-003", "score": 0.7211678624153137, "sibling_score": 0.7211678624153137, "answer_score": 0.4076505109667778, "sibling_qid": "MUM-2022-11-0065-Q011", "sibling_text": "calculations for eexi and cii", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "03. Explain EEXI and CII, including how each is calculated", "cross_family": false }, { "answer_id": "EEXI-001", "score": 0.706731379032135, "sibling_score": 0.706731379032135, "answer_score": 0.36048614978790283, "sibling_qid": "KOL-2026-03-1199-Q005", "sibling_text": "eexi it s calculation", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is EEXI? Explain it in full — formula, unit, application, and what an existing ship is", "cross_family": false }, { "answer_id": "EECS-002", "score": 0.6427026987075806, "sibling_score": 0.6427026987075806, "answer_score": 0.3604483544826507, "sibling_qid": "MUM-2024-02-0158-Q007", "sibling_text": "eexi cii and its calculation", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "02. Differentiate EEXI and CII", "cross_family": false } ] }, { "qid": "MUM-2026-06-3435-Q007", "text": "⁠can PSC do ism survey?", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "MUM-2026-06-3435", "tray": "new", "candidates": [ { "answer_id": "ISM-AUDIT-P01-002", "score": 0.6318381428718567, "sibling_score": 0.6318381428718567, "answer_score": null, "sibling_qid": "KOC-2023-07-0200-Q009", "sibling_text": "what are surveys carried out in ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM/SMS audits and verifications — types, who conducts them, intervals and validity", "cross_family": false }, { "answer_id": "ISM-2E-C-001", "score": 0.576438844203949, "sibling_score": 0.576438844203949, "answer_score": 0.33237439692020415, "sibling_qid": "KOC-2026-05-2133-Q006", "sibling_text": "ism documents for survey", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM audit / survey preparation as Second Engineer — beyond the paperwork", "cross_family": false }, { "answer_id": "ISM-2E-B-001", "score": 0.569983720779419, "sibling_score": 0.569983720779419, "answer_score": null, "sibling_qid": "KOC-2022-07-0080-Q013", "sibling_text": "ism survey prep as 2 e internal paul", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "B1. Preparing for an ISM audit as Second Engineer", "cross_family": false } ] }, { "qid": "MUM-2026-06-3435-Q010", "text": "IRIT and AIS ?", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "MUM-2026-06-3435", "tray": "new", "candidates": [ { "answer_id": "IACS-324-001", "score": 0.4347946047782898, "sibling_score": 0.4347946047782898, "answer_score": 0.2875961810350418, "sibling_qid": "KOC-2025-02-0543-Q001", "sibling_text": "iacs", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "1. What is IACS and what are its functions?", "cross_family": true }, { "answer_id": "EPIRB-SART-002", "score": 0.4268933832645416, "sibling_score": 0.4268933832645416, "answer_score": 0.29136431217193604, "sibling_qid": "CHE-2026-05-0535-Q007", "sibling_text": "sart and ais sart", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What is an AIS-SART and how does it differ from a radar SART?", "cross_family": true }, { "answer_id": "IRT-C-006", "score": 0.416892409324646, "sibling_score": 0.416892409324646, "answer_score": null, "sibling_qid": "KOL-2025-01-2762-Q001", "sibling_text": "ir test values", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Acceptable IR values, the minimum & \"what if it's low\"", "cross_family": true } ] }, { "qid": "MUM-2026-06-3436-Q001", "text": "Last ship type? Bulk carrier", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-06-3436", "tray": "review", "candidates": [ { "answer_id": "SOLAS12-BC-A-001", "score": 0.8028865456581116, "sibling_score": 0.8028865456581116, "answer_score": 0.5137895822525024, "sibling_qid": "KOC-2026-02-0799-Q003", "sibling_text": "ship done bulk carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "SOLAS definition and scope of a bulk carrier", "cross_family": false }, { "answer_id": "SOLAS12-BC-A-002", "score": 0.7300609350204468, "sibling_score": 0.7300609350204468, "answer_score": null, "sibling_qid": "KOL-2025-09-1056-Q002", "sibling_text": "type of ship latest amendments added to bulk carriers explain", "sibling_family": "", "via": "sibling", "answer_title": "Why Chapter XII was introduced; old vs new bulk carriers and latest amendments", "cross_family": false }, { "answer_id": "SOLAS-XII-BC-002", "score": 0.6992700695991516, "sibling_score": 0.6992700695991516, "answer_score": null, "sibling_qid": "KOC-2026-09-2208-Q005", "sibling_text": "bulk carrier as per solas", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Explain SOLAS Chapter XII — the additional safety measures for bulk carriers", "cross_family": true } ] }, { "qid": "MUM-2026-06-3436-Q007", "text": "Life boat 5 yearly surveys? How to get this 75kg and 82.5kg weight values?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Lifeboat", "tid": "MUM-2026-06-3436", "tray": "new", "candidates": [ { "answer_id": "LBT-TEST-B-003", "score": 0.5203179121017456, "sibling_score": 0.5203179121017456, "answer_score": null, "sibling_qid": "KOC-2024-03-0327-Q007", "sibling_text": "tests carried out on lifeboats as per solas not accepting the notes answer he wants to hear equivalent weight of 1 5 1 1 times the brake holding capacity of davit never say water bags inside the lifeboat or weight is added by boarding persons etc", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Winch/davit brake test — static vs dynamic, holding capacity, slippage", "cross_family": false }, { "answer_id": "LBT-TEST-B-002", "score": 0.4564756155014038, "sibling_score": 0.4564756155014038, "answer_score": null, "sibling_qid": "KOC-2026-02-0824-Q005", "sibling_text": "life boat davit 5 yearly and yearly test", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Annual and 5-yearly lifeboat/davit tests (the servicing regime)", "cross_family": false }, { "answer_id": "LBT-TEST-B-001", "score": 0.4556148052215576, "sibling_score": 0.4556148052215576, "answer_score": null, "sibling_qid": "MUM-2024-07-2766-Q009", "sibling_text": "what types of test carried out on lifeboat explain dynamic test and onload test what is proof load what is average wt to be considered of person in l b", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat/davit load-test proof loads and test conditions", "cross_family": false } ] }, { "qid": "MUM-2026-06-3436-Q009", "text": "What is AIS and what does it indicate?", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "MUM-2026-06-3436", "tray": "new", "candidates": [ { "answer_id": "EPIRB-SART-002", "score": 0.41977134346961975, "sibling_score": 0.41977134346961975, "answer_score": 0.40187036246061325, "sibling_qid": "CHE-2026-05-0542-Q001", "sibling_text": "ais sart", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What is an AIS-SART and how does it differ from a radar SART?", "cross_family": true }, { "answer_id": "IACS-324-001", "score": 0.4132303297519684, "sibling_score": 0.4132303297519684, "answer_score": 0.326694031059742, "sibling_qid": "KOC-2025-02-0543-Q001", "sibling_text": "iacs", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "1. What is IACS and what are its functions?", "cross_family": true }, { "answer_id": "ISM-ELEM-002", "score": 0.3572660982608795, "sibling_score": 0.3572660982608795, "answer_score": null, "sibling_qid": "KOC-2026-05-2138-Q008", "sibling_text": "ism codes describe all the codes in part a and part b", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the ISM Code?", "cross_family": true } ] }, { "qid": "MUM-2026-06-3436-Q010", "text": "Explain which part of MLC states shipowner's responsibilities? Explain clause of repatriation of MLC?", "family": "MLC", "subtopic": "MLC / DMLC / Work-Rest", "tid": "MUM-2026-06-3436", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-009", "score": 0.6269543766975403, "sibling_score": 0.6269543766975403, "answer_score": 0.3831089198589325, "sibling_qid": "CHE-2025-08-0426-Q009", "sibling_text": "ship owner abandoned the ship what will you do as per mlc i told financial security certificate for repartation", "sibling_family": "MLC", "via": "sibling", "answer_title": "Abandonment — financial security and repatriation", "cross_family": false }, { "answer_id": "CLC-CIV-B-003", "score": 0.6037665009498596, "sibling_score": 0.6037665009498596, "answer_score": null, "sibling_qid": "MUM-2026-04-0880-Q004", "sibling_text": "mlc what is shipowner liability", "sibling_family": "MLC", "via": "sibling", "answer_title": "LLMC: purpose, scope and limitation of maritime claims", "cross_family": false }, { "answer_id": "ISMNC-006", "score": 0.45482945442199707, "sibling_score": 0.45482945442199707, "answer_score": null, "sibling_qid": "MUM-2026-02-0741-Q004", "sibling_text": "ur ship has mnc what u will do", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Your ship has been issued a major non-conformity: what action do you take, what are the repercussions, and can the ship sail with it?", "cross_family": true } ] }, { "qid": "MUM-2026-06-3437-Q001", "text": "SFOC is not changed but 24hrs fuel consumption up by 2m3 reasons?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "SFOC", "tid": "MUM-2026-06-3437", "tray": "new", "candidates": [ { "answer_id": "ETP-344-P01-004", "score": 0.5712172389030457, "sibling_score": 0.5712172389030457, "answer_score": null, "sibling_qid": "MUM-2023-03-2167-Q003", "sibling_text": "fuel consumption has increased and what are the reasons", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "MCR, NCR, sea margin, load curve, heavy running — and why ~85%", "cross_family": false }, { "answer_id": "SFOC-001", "score": 0.5547927021980286, "sibling_score": 0.5547927021980286, "answer_score": 0.4171248212456703, "sibling_qid": "KOL-2025-04-3776-Q005", "sibling_text": "specific fuel oil consumption", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What is SFOC? Definition, formula, unit — and how you get the corrected density", "cross_family": false }, { "answer_id": "SFOC-002", "score": 0.5466329455375671, "sibling_score": 0.5466329455375671, "answer_score": null, "sibling_qid": "KOL-2019-12-1505-Q006", "sibling_text": "sfoc calculation not only the formula how we calculate while taking engine performance or in noon report", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "How do you calculate SFOC on board? The step-by-step procedure", "cross_family": false } ] }, { "qid": "MUM-2026-06-3437-Q002", "text": "⁠hull and propeller fouling effects on engine?", "family": "Drydock & Underwater Surveys", "subtopic": "Hull Painting / Antifouling", "tid": "MUM-2026-06-3437", "tray": "new", "candidates": [ { "answer_id": "DDI-003", "score": 0.63380366563797, "sibling_score": 0.63380366563797, "answer_score": null, "sibling_qid": "MUM-2022-11-2719-Q010", "sibling_text": "after drydock as 2ewhat all things to cheek in propeller rudden sit before flooding few more result fail", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Before flooding the dock, what checks do you carry out — in the engine room, and on the propeller, rudder and stern tube?", "cross_family": false }, { "answer_id": "PROP-PIL-A-002", "score": 0.6146081686019897, "sibling_score": 0.6146081686019897, "answer_score": null, "sibling_qid": "KOL-2018-04-3136-Q002", "sibling_text": "bedding of propeller", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Bedding on the taper and fit verification", "cross_family": false }, { "answer_id": "DUS-P4-03", "score": 0.6045565009117126, "sibling_score": 0.6045565009117126, "answer_score": 0.46531912982463836, "sibling_qid": "KOC-2025-12-1079-Q004", "sibling_text": "ship skin resistance reduction methods hull coating propeller advancements air lubrication of hull", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Card 3 — Ship skin-resistance reduction: hull coating, propeller and air-lubrication advances", "cross_family": false } ] }, { "qid": "MUM-2026-06-3437-Q008", "text": "gusset stays ?", "family": "Boilers - Construction & Components", "subtopic": "Ogee Ring", "tid": "MUM-2026-06-3437", "tray": "new", "candidates": [ { "answer_id": "OGEE-RING-001", "score": 0.5743573307991028, "sibling_score": 0.5743573307991028, "answer_score": null, "sibling_qid": "KOC-2022-01-0954-Q007", "sibling_text": "gusset stay ogee ring", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "The ogee ring: what it is, where it sits, its purpose, and how it's formed and connected", "cross_family": false }, { "answer_id": "FWFB-P02-001", "score": 0.4480688273906708, "sibling_score": 0.4480688273906708, "answer_score": 0.31503471136093136, "sibling_qid": "MUM-2022-10-0061-Q005", "sibling_text": "gusset plate where used", "sibling_family": "", "via": "sibling", "answer_title": "Brackets, knees and gusset plates", "cross_family": false }, { "answer_id": "SHELL-PLT-B-003", "score": 0.3711397647857666, "sibling_score": 0.3711397647857666, "answer_score": null, "sibling_qid": "KOL-2017-07-0099-Q002", "sibling_text": "garboard stake", "sibling_family": "", "via": "sibling", "answer_title": "Garboard and bilge strakes", "cross_family": false } ] }, { "qid": "MUM-2026-06-3438-Q001", "text": "ME SPECIFICATION ?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-06-3438", "tray": "new", "candidates": [ { "answer_id": "AEME-DIFF-001", "score": 0.599152147769928, "sibling_score": 0.599152147769928, "answer_score": null, "sibling_qid": "MUM-2024-09-2770-Q002", "sibling_text": "me ae type and specs", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": true }, { "answer_id": "ENG-NOM-001", "score": 0.5536530017852783, "sibling_score": 0.5536530017852783, "answer_score": 0.33783857971429826, "sibling_qid": "MUM-2026-06-3420-Q002", "sibling_text": "nomenclature of me ae explain full", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Nomenclature of ME and AE (asked together)", "cross_family": false }, { "answer_id": "MEGI-304-002", "score": 0.532612681388855, "sibling_score": 0.532612681388855, "answer_score": null, "sibling_qid": "KOL-2026-01-2036-Q001", "sibling_text": "what is me g", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "2. ME-GI / ME-GA / ME-G and recent dual-fuel engine advancements", "cross_family": true } ] }, { "qid": "MUM-2026-06-3438-Q008", "text": "All AE units giving out water during blow through action ? ", "family": "2-Stroke - Operations & Casualty", "subtopic": "Slow Turning vs Blow Through", "tid": "MUM-2026-06-3438", "tray": "new", "candidates": [ { "answer_id": "SAV-003", "score": 0.6477357745170593, "sibling_score": 0.6477357745170593, "answer_score": 0.3900140106678009, "sibling_qid": "MUM-2026-02-2546-Q004", "sibling_text": "ae starting time water is coming from indicator cockw while blow through what action as 2e", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Action when a unit starting air valve leaks or the line goes red hot in manoeuvring", "cross_family": false }, { "answer_id": "SEA-CHEST-006", "score": 0.5957924723625183, "sibling_score": 0.5957924723625183, "answer_score": null, "sibling_qid": "MUM-2026-01-2527-Q004", "sibling_text": "ae water coming out from all indicator cocks what action", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "2/E actions: leak, crack, fouling, stuck valve, valve-life", "cross_family": true }, { "answer_id": "CAS-ESTOP-001", "score": 0.5733718276023865, "sibling_score": 0.5733718276023865, "answer_score": null, "sibling_qid": "KOL-2019-03-3227-Q004", "sibling_text": "e r flooding action", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Engine-room flooding / rapidly rising bilges — immediate action as 2/E", "cross_family": false } ] }, { "qid": "MUM-2026-06-3438-Q012", "text": " Significance of propeller ? push up distance ", "family": "Drydock & Underwater Surveys", "subtopic": "Propeller / Pilgrim Nut", "tid": "MUM-2026-06-3438", "tray": "review", "candidates": [ { "answer_id": "PROP-PN-B-003", "score": 0.721706748008728, "sibling_score": 0.721706748008728, "answer_score": null, "sibling_qid": "KOL-2024-05-3690-Q004", "sibling_text": "after getting push up distance how propeller move inside", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Push-up: how much, from where, and why not more or less", "cross_family": false }, { "answer_id": "PROP-PIL-A-001", "score": 0.6216599345207214, "sibling_score": 0.6216599345207214, "answer_score": null, "sibling_qid": "KOL-2026-01-4080-Q003", "sibling_text": "pilgrim nut method removal and attachment of propeller push up distance", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Pilgrim / SKF hydraulic nut — fitting, push-up, extraction and removal", "cross_family": false }, { "answer_id": "PROP-RP-002", "score": 0.5443215370178223, "sibling_score": 0.5443215370178223, "answer_score": 0.4286884367465973, "sibling_qid": "MUM-2025-06-2317-Q001", "sibling_text": "propeller removal procedure push pull graph", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Propeller fitting — push-up, drop, bedding, dry vs wet", "cross_family": false } ] }, { "qid": "MUM-2026-06-3439-Q001", "text": "How do you test HP cut-out IN REEFER?", "family": "Refrigeration & AC", "subtopic": "Refrigeration Lubricating Oil / Flock Point / Oil Charging", "tid": "MUM-2026-06-3439", "tray": "new", "candidates": [ { "answer_id": "RAC-HPLP-389-003", "score": 0.5955126881599426, "sibling_score": 0.5955126881599426, "answer_score": 0.43006710410118104, "sibling_qid": "KOC-2025-03-2061-Q010", "sibling_text": "cutouts in refrigeration system hp lp lo", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Trips and cutouts on a refrigeration compressor (HP, LP, LO)", "cross_family": false }, { "answer_id": "RAC-HPLP-389-001", "score": 0.5481224060058594, "sibling_score": 0.5481224060058594, "answer_score": null, "sibling_qid": "MUM-2022-07-2136-Q006", "sibling_text": "ref comp hp trip what to check", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Refrigeration / AC compressor trips on high pressure — causes and checks", "cross_family": false }, { "answer_id": "REEF-COMP-002", "score": 0.5186265110969543, "sibling_score": 0.5186265110969543, "answer_score": null, "sibling_qid": "KOC-2026-03-1731-Q006", "sibling_text": "reefer compressor lube oil low pres cut off trip working", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Lube-oil low-pressure / differential-pressure trip — how it works, tests and sets", "cross_family": false } ] }, { "qid": "MUM-2026-06-3439-Q004", "text": "how the pilgrim nut method used?", "family": "Drydock & Underwater Surveys", "subtopic": "Propeller / Pilgrim Nut", "tid": "MUM-2026-06-3439", "tray": "new", "candidates": [ { "answer_id": "PROP-PIL-A-001", "score": 0.607610285282135, "sibling_score": 0.607610285282135, "answer_score": 0.317810994386673, "sibling_qid": "MUM-2026-09-3999-Q005", "sibling_text": "pilgrim nut method", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Pilgrim / SKF hydraulic nut — fitting, push-up, extraction and removal", "cross_family": false }, { "answer_id": "BBR-001", "score": 0.21140824258327484, "sibling_score": null, "answer_score": 0.21140824258327484, "sibling_qid": "", "sibling_text": "how do you extract a broken or sheared stud bolt from machinery or structure preparation first clean penetrating oil and time file proud ends flat centre punch dead centre weld a nut is the go to for a proud stud the heat breaks the rust bond and gives full concentric turning grip", "sibling_family": "", "via": "answer_title", "answer_title": "How do you extract a broken or sheared stud/bolt from machinery or structure?", "cross_family": false }, { "answer_id": "BBR-002", "score": 0.1953838437795639, "sibling_score": null, "answer_score": 0.1953838437795639, "sibling_qid": "", "sibling_text": "how do you free a seized valve cover nut bolt and why should gas cutting be avoided goal free the fastener without damaging the valve s sealing faces lapped seat disc machined bonnet body joint faces spindle order penetrant time shock with hammer and drift controlled heat on the nut only correct ring spanner socket nut splitter or hacksaw as last resort", "sibling_family": "", "via": "answer_title", "answer_title": "How do you free a seized valve cover nut/bolt, and why should gas cutting be avoided?", "cross_family": false } ] }, { "qid": "MUM-2026-06-3440-Q005", "text": "Iso standard of fuel and difference ?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Quality / CCAI", "tid": "MUM-2026-06-3440", "tray": "review", "candidates": [ { "answer_id": "FQCC-583-A-002", "score": 0.7372706532478333, "sibling_score": 0.7372706532478333, "answer_score": 0.42357041537761686, "sibling_qid": "MUM-2026-05-3258-Q002", "sibling_text": "fuel standard which iso difference between previous fuel grade iso and new one", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "ISO 8217 — the standard, and what changed from 2017 to 2024", "cross_family": false }, { "answer_id": "AV6-P01-05", "score": 0.5720553398132324, "sibling_score": 0.5720553398132324, "answer_score": 0.49145519137382504, "sibling_qid": "MUM-2024-10-0964-Q005", "sibling_text": "iso 8217 17 comparison with iso 8217 2024 apart from fame tell other fuels wanted to hear about sng", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Compare ISO 8217:2017 with ISO 8217:2024, including the FAME and newer-fuel categories the examiner asks about.", "cross_family": true }, { "answer_id": "FQCC-583-A-001", "score": 0.562478244304657, "sibling_score": 0.562478244304657, "answer_score": null, "sibling_qid": "KOL-2025-07-4060-Q002", "sibling_text": "who decided ccai vandium sulphur etc contain in marine fuel i said iso 8217", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "CCAI — what it is, how it is calculated, and what it is really for", "cross_family": false } ] }, { "qid": "MUM-2026-06-3440-Q008", "text": "Lift of safety valve why d/4 ?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2026-06-3440", "tray": "new", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.616051197052002, "sibling_score": 0.616051197052002, "answer_score": null, "sibling_qid": "MUM-2026-06-3356-Q009", "sibling_text": "type of safety valve how much was the lift of it", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-002", "score": 0.6090495586395264, "sibling_score": 0.6090495586395264, "answer_score": null, "sibling_qid": "KOL-2026-02-3922-Q005", "sibling_text": "what is lifting of safety valve tell only within 3 percent of designated set pressure nothing else", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Acceptance limits and durations — the accumulation limit, the maximum test periods, and the action if the limit is exceeded", "cross_family": false }, { "answer_id": "ACRV-005", "score": 0.6038899421691895, "sibling_score": 0.6038899421691895, "answer_score": null, "sibling_qid": "MUM-2026-06-3429-Q010", "sibling_text": "safety valve lift difference", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": false } ] }, { "qid": "MUM-2026-06-3440-Q010", "text": "Why it is used, application onboard?", "family": "NDT & Material Testing", "subtopic": "Impact / Charpy", "tid": "MUM-2026-06-3440", "tray": "new", "candidates": [ { "answer_id": "EXD-EXI-A-002", "score": 0.5343102216720581, "sibling_score": 0.5343102216720581, "answer_score": null, "sibling_qid": "KOC-2022-09-2033-Q004", "sibling_text": "exd explain application on board", "sibling_family": "", "via": "sibling", "answer_title": "Ex d (flameproof / explosion-proof) — construction, shipboard applications and maintenance", "cross_family": false }, { "answer_id": "FLD-601-001", "score": 0.5178884267807007, "sibling_score": 0.5178884267807007, "answer_score": null, "sibling_qid": "KOL-2019-03-0265-Q003", "sibling_text": "lel diagram and application onboard", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Draw and explain the hydrocarbon flammability diagram. What is its purpose and functional requirement, why is the line tapered, and how do you mark a point on it?", "cross_family": true }, { "answer_id": "VFD-INV-P01-002", "score": 0.49196115136146545, "sibling_score": 0.49196115136146545, "answer_score": null, "sibling_qid": "KOC-2025-01-1481-Q011", "sibling_text": "where all its used on board", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Where is a VFD used onboard, and why?", "cross_family": true } ] }, { "qid": "MUM-2026-06-3443-Q006", "text": "PSC wants blackout test. Procedure?", "family": "Electrical - Generator & Alternator", "subtopic": "Blackout Test", "tid": "MUM-2026-06-3443", "tray": "review", "candidates": [ { "answer_id": "BOT-001", "score": 0.8002607822418213, "sibling_score": 0.8002607822418213, "answer_score": 0.47893531918525695, "sibling_qid": "MUM-2026-06-3464-Q004", "sibling_text": "psc wants blackout test procedure", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "How do you carry out and demonstrate the blackout test in front of the surveyor — procedure, simulation, precautions before simulating, and what happens to machinery on the emergency switchboard?", "cross_family": false }, { "answer_id": "EMCY-DG-P03-004", "score": 0.5831165909767151, "sibling_score": 0.5831165909767151, "answer_score": 0.41094721406698226, "sibling_qid": "KOC-2025-02-1487-Q006", "sibling_text": "explain sequence after blackout", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Blackout sequence — starting the set and taking load back", "cross_family": false }, { "answer_id": "PTRIP-BO-001", "score": 0.4681320428848266, "sibling_score": null, "answer_score": 0.4681320428848266, "sibling_qid": "", "sibling_text": "blackout test how would you carry it out purpose prove the whole chain emergency generator auto start and connection within 45 seconds standby generator auto start and sequential restart before a real blackout tests it for you permission first chief engineer s authority bridge and master informed safe conditions only in port or open sea never manoeuvring or restricted waters", "sibling_family": "", "via": "answer_title", "answer_title": "Blackout test — how would you carry it out?", "cross_family": false } ] }, { "qid": "MUM-2026-06-3443-Q008", "text": "What purpose how working ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Transistor / Capacitor", "tid": "MUM-2026-06-3443", "tray": "new", "candidates": [ { "answer_id": "FSH-DET-004", "score": 0.5550576448440552, "sibling_score": 0.5550576448440552, "answer_score": null, "sibling_qid": "KOC-2025-07-0633-Q030", "sibling_text": "what is the purpose", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Heat detector locations onboard, and why heat detectors in ECR, workshop and machinery spaces", "cross_family": true }, { "answer_id": "CH-FIRE-005", "score": 0.5519592761993408, "sibling_score": 0.5519592761993408, "answer_score": null, "sibling_qid": "CHE-2025-10-0070-Q021", "sibling_text": "how it is working", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Cargo hold fire — system working and maintenance (general)", "cross_family": true }, { "answer_id": "PURIF-172-005", "score": 0.5429438352584839, "sibling_score": 0.5429438352584839, "answer_score": null, "sibling_qid": "MUM-2022-11-1369-Q003", "sibling_text": "purpose", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Principle, disc stack, separation formula & interface", "cross_family": true } ] }, { "qid": "MUM-2026-06-3444-Q004", "text": "Use of ZENER DIODE in FIRE Alarm circuit ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Zener / Diode / Rectifier", "tid": "MUM-2026-06-3444", "tray": "new", "candidates": [ { "answer_id": "FSF-BF073-004", "score": 0.6452775597572327, "sibling_score": 0.6452775597572327, "answer_score": null, "sibling_qid": "CHE-2026-03-0359-Q001", "sibling_text": "zener diode zener barrier working in intrinsically safe", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a magnetic fail safe?", "cross_family": false }, { "answer_id": "HAZ-EX-B-001", "score": 0.6331185102462769, "sibling_score": 0.6331185102462769, "answer_score": null, "sibling_qid": "CHE-2026-03-0358-Q005", "sibling_text": "zener barrier working in intrinsically safe", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Intrinsically safe (Ex i) equipment — what it is, how it works, where it is used, how you identify it", "cross_family": false }, { "answer_id": "EPC-P02-01", "score": 0.6141979694366455, "sibling_score": 0.6141979694366455, "answer_score": 0.430869722366333, "sibling_qid": "KOC-2023-12-1314-Q013", "sibling_text": "zener diode characteristics where all used onboard", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a zener diode? Draw its symbol, explain its working principle, and draw and explain its characteristic curve including the zener (breakdown) voltage.", "cross_family": false } ] }, { "qid": "MUM-2026-06-3447-Q001", "text": "About college ,company ?", "family": "Status & Introduction", "subtopic": "Company Introduction", "tid": "MUM-2026-06-3447", "tray": "new", "candidates": [ { "answer_id": "OTH-CONV-002", "score": 0.4895460605621338, "sibling_score": 0.4895460605621338, "answer_score": null, "sibling_qid": "KOL-2026-02-1178-Q005", "sibling_text": "full form of colreg", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "COLREG — full form, number of rules, parts and contents", "cross_family": true }, { "answer_id": "LLST-AB-002", "score": 0.41646644473075867, "sibling_score": 0.41646644473075867, "answer_score": null, "sibling_qid": "MUM-2026-09-3912-Q001", "sibling_text": "company name type of ships native place", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false }, { "answer_id": "STCW-MAN-006", "score": 0.37266063690185547, "sibling_score": 0.37266063690185547, "answer_score": null, "sibling_qid": "NOI-2026-09-0008-Q001", "sibling_text": "training institue sea time after class 4 coc", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "What are the levels and categories of seafarer under STCW, and what are the duties of the Second Engineer at management level?", "cross_family": false } ] }, { "qid": "MUM-2026-06-3447-Q007", "text": "Gusset in boiler ?", "family": "Boilers - Construction & Components", "subtopic": "Ogee Ring", "tid": "MUM-2026-06-3447", "tray": "new", "candidates": [ { "answer_id": "OGEE-RING-001", "score": 0.5898628830909729, "sibling_score": 0.5898628830909729, "answer_score": 0.4040476202964783, "sibling_qid": "KOL-2022-03-3525-Q005", "sibling_text": "ogee ring in boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "The ogee ring: what it is, where it sits, its purpose, and how it's formed and connected", "cross_family": false }, { "answer_id": "SH-332-005", "score": 0.5872281193733215, "sibling_score": 0.5872281193733215, "answer_score": null, "sibling_qid": "KOL-2025-07-1999-Q005", "sibling_text": "attemperator in boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Desuperheater / attemperator: what, why, and superheat control", "cross_family": false }, { "answer_id": "BLR-GG-001", "score": 0.5782809853553772, "sibling_score": 0.5782809853553772, "answer_score": 0.3974038794636726, "sibling_qid": "KOC-2025-09-0657-Q005", "sibling_text": "boiler gauge glass tightening", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "How do you overhaul, repair, renew, assemble or tighten a boiler gauge glass?", "cross_family": false } ] }, { "qid": "MUM-2026-06-3448-Q002", "text": "What could go wrong with resin chocks?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE Resilient Chock", "tid": "MUM-2026-06-3448", "tray": "new", "candidates": [ { "answer_id": "CHK-RM-002", "score": 0.4749338626861572, "sibling_score": 0.4749338626861572, "answer_score": 0.34540800154209134, "sibling_qid": "KOL-2021-08-3437-Q004", "sibling_text": "resin chok how to do", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Explain resin chocking — what it is, how it is done, and how resin chocks are cast and poured.", "cross_family": true }, { "answer_id": "BED-CHOCK-006", "score": 0.4497576355934143, "sibling_score": 0.4497576355934143, "answer_score": 0.36403439939022064, "sibling_qid": "MUM-2025-11-2876-Q007", "sibling_text": "types of chocks epoxy resin and cast iron chocks", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What types of main-engine chocks are there — epoxy/resin, cast-iron, rubber — and why each?", "cross_family": true }, { "answer_id": "CHK-RM-005", "score": 0.41575944423675537, "sibling_score": 0.41575944423675537, "answer_score": 0.35919183790683745, "sibling_qid": "KOL-2020-02-1520-Q009", "sibling_text": "chock shows corrosion how to repair", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "A chock shows corrosion. How do you repair it?", "cross_family": true } ] }, { "qid": "MUM-2026-06-3448-Q003", "text": "What are area of checking Cross head bearing?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Crosshead Bearing", "tid": "MUM-2026-06-3448", "tray": "review", "candidates": [ { "answer_id": "XHD-BRG-C-003", "score": 0.6817911267280579, "sibling_score": 0.6817911267280579, "answer_score": null, "sibling_qid": "KOL-2025-03-3768-Q002", "sibling_text": "cross head bearing inspection and clearances", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "C. Crosshead and guide-shoe clearances: how many, how measured, piston position and why", "cross_family": false }, { "answer_id": "XHD-BRG-B-002", "score": 0.6790906190872192, "sibling_score": 0.6790906190872192, "answer_score": null, "sibling_qid": "KOL-2019-11-3287-Q004", "sibling_text": "cross head bearing overhaul checks", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Removing and lowering the crosshead bottom shell — the critical safety measure", "cross_family": false }, { "answer_id": "XHD-BRG-C-001", "score": 0.6778445243835449, "sibling_score": 0.6778445243835449, "answer_score": null, "sibling_qid": "MUM-2026-07-3803-Q003", "sibling_text": "crosshead bearing inspection", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "A. Present the crosshead bottom shell for survey, piston in place", "cross_family": false } ] }, { "qid": "MUM-2026-06-3448-Q004", "text": "Removal of seal from the wind lass?", "family": "Auxiliary Equipment", "subtopic": "Windlass / Crane Motor", "tid": "MUM-2026-06-3448", "tray": "new", "candidates": [ { "answer_id": "WIND-WNCH-010", "score": 0.562462568283081, "sibling_score": 0.562462568283081, "answer_score": null, "sibling_qid": "MUM-2026-06-3600-Q006", "sibling_text": "mooring winch pump oil seal removal procedure", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Survey prep, checks, routines and maintenance", "cross_family": false }, { "answer_id": "SGRS-328-001", "score": 0.5053450465202332, "sibling_score": 0.5053450465202332, "answer_score": 0.34710022807121277, "sibling_qid": "KOC-2023-01-1806-Q006", "sibling_text": "ram seal removal paul sir", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "How do you change or replace a steering gear ram seal in place?", "cross_family": true }, { "answer_id": "PCD-P03-03", "score": 0.5044932961463928, "sibling_score": 0.5044932961463928, "answer_score": null, "sibling_qid": "MUM-2024-07-2232-Q001", "sibling_text": "how to remove mechanical seal", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Mechanical seal — construction, materials, fitting, removal and leakage", "cross_family": true } ] }, { "qid": "MUM-2026-06-3450-Q004", "text": "Wet quills and dry quills?", "family": "Drydock & Underwater Surveys", "subtopic": "Substantial Corrosion", "tid": "MUM-2026-06-3450", "tray": "new", "candidates": [ { "answer_id": "FP-OVHL-002", "score": 0.44081181287765503, "sibling_score": 0.44081181287765503, "answer_score": null, "sibling_qid": "KOL-2017-07-1852-Q004", "sibling_text": "removal of quills", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel-pump components, clearances and markings", "cross_family": true }, { "answer_id": "CYL-LUB-A-003", "score": 0.4331374764442444, "sibling_score": 0.4331374764442444, "answer_score": 0.27071880400180814, "sibling_qid": "KOC-2025-01-1897-Q010", "sibling_text": "quills arrangements on the liner", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Lubricator quills — arrangement and oil distribution on the liner", "cross_family": true }, { "answer_id": "DUS-P1-01", "score": 0.43231093883514404, "sibling_score": 0.43231093883514404, "answer_score": null, "sibling_qid": "KOC-2025-02-1485-Q005", "sibling_text": "drychecks as 2e", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Drydock preparation as 2E — full workflow from office confirmation to entry", "cross_family": false } ] }, { "qid": "MUM-2026-06-3450-Q007", "text": "How de- pressurising done in boiler ?", "family": "Boilers - Safety & Survey", "subtopic": "Boiler Survey Prep", "tid": "MUM-2026-06-3450", "tray": "review", "candidates": [ { "answer_id": "ACCT-583-A-001", "score": 0.6782132983207703, "sibling_score": 0.6782132983207703, "answer_score": null, "sibling_qid": "KOL-2020-09-3347-Q003", "sibling_text": "boiler accumulation pressure complete procedure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Explain the boiler accumulation pressure test — what it is, its purpose, and how it is carried out (including when and at what interval)", "cross_family": false }, { "answer_id": "HYD-602-002", "score": 0.6771355271339417, "sibling_score": 0.6771355271339417, "answer_score": null, "sibling_qid": "KOL-2021-12-3503-Q002", "sibling_text": "boiler hydrostatic pressure when done how done precautions", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Why is the hydrostatic test carried out, when is it done, and what does it prove?", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.6744557619094849, "sibling_score": 0.6744557619094849, "answer_score": null, "sibling_qid": "CHE-2026-05-0583-Q002", "sibling_text": "boiler safety valve lifting pressure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "MUM-2026-06-3450-Q012", "text": "how to test HP cut out of refer system and how to adjust it ?", "family": "Electrical - Motors & Starters", "subtopic": "IR Test / Insulation Resistance", "tid": "MUM-2026-06-3450", "tray": "new", "candidates": [ { "answer_id": "RAC-HPLP-389-002", "score": 0.4632223844528198, "sibling_score": 0.4632223844528198, "answer_score": null, "sibling_qid": "CHE-2026-09-3913-Q005", "sibling_text": "why lp cut out is given in refer system", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "LP cutout — switch, scale and differential adjustment", "cross_family": true }, { "answer_id": "IR-TEST-B-006", "score": 0.4027603268623352, "sibling_score": 0.4027603268623352, "answer_score": null, "sibling_qid": "KOC-2021-10-1149-Q004", "sibling_text": "hv system ir test", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "High-voltage IR test — full procedure", "cross_family": false }, { "answer_id": "HYDRO-003", "score": 0.3831956386566162, "sibling_score": 0.3831956386566162, "answer_score": null, "sibling_qid": "KOL-2017-02-1843-Q001", "sibling_text": "1 hydrofore p p frequently cut in cut off why what is the reason", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "The hydrophore pump is cutting in and out frequently — what is the reason?", "cross_family": true } ] }, { "qid": "MUM-2026-06-3450-Q013", "text": "holding down bolts solas regulations ?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE Resilient Chock", "tid": "MUM-2026-06-3450", "tray": "new", "candidates": [ { "answer_id": "TR-TB-PA-006", "score": 0.592220664024353, "sibling_score": 0.592220664024353, "answer_score": null, "sibling_qid": "MUM-2026-09-3906-Q003", "sibling_text": "hold down bolt material specification", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Material, condition, fretting, vibration and elongation", "cross_family": true }, { "answer_id": "FB-COUP-001", "score": 0.5753784775733948, "sibling_score": 0.5753784775733948, "answer_score": 0.4519073188304901, "sibling_qid": "MUM-2026-06-3618-Q009", "sibling_text": "fitted bolts why used", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What fitted bolts are, what they do, and where they sit onboard", "cross_family": true }, { "answer_id": "SPR-STERN-008", "score": 0.5741634368896484, "sibling_score": 0.5741634368896484, "answer_score": null, "sibling_qid": "MUM-2026-03-1306-Q014S6", "sibling_text": "fitted bolts why used", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Tail/intermediate shaft material, stresses, fitted bolts & arrangement", "cross_family": true } ] }, { "qid": "MUM-2026-06-3451-Q002", "text": "What type of pump used and what is the material and why that material is chosen ?", "family": "Cargo Ops - Tankers", "subtopic": "Cargo Pump (Framo / Eductor)", "tid": "MUM-2026-06-3451", "tray": "new", "candidates": [ { "answer_id": "CPFE-583-001", "score": 0.599086582660675, "sibling_score": 0.599086582660675, "answer_score": null, "sibling_qid": "MUM-2026-06-3391-Q008", "sibling_text": "framo pump type", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "The Framo system — what it is, how it works, and the driving mechanism", "cross_family": false }, { "answer_id": "PCD-P05-03", "score": 0.5971677899360657, "sibling_score": 0.5971677899360657, "answer_score": null, "sibling_qid": "KOL-2018-10-1863-Q007", "sibling_text": "gear pump material", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Gear pump — construction, working, backlash, tooth profile, safety valve, why not for sea water", "cross_family": true }, { "answer_id": "CPFE-583-021", "score": 0.5654625296592712, "sibling_score": 0.5654625296592712, "answer_score": null, "sibling_qid": "MUM-2026-02-1272-Q008", "sibling_text": "type of cargo pumps in ships and material of impeller", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Deepwell and submersible pumps — construction, impeller and materials", "cross_family": false } ] }, { "qid": "MUM-2026-06-3451-Q008", "text": "What is the purpose of chain coupling ?", "family": "Cargo Ops - Tankers", "subtopic": "IG System", "tid": "MUM-2026-06-3451", "tray": "new", "candidates": [ { "answer_id": "CHAIN-TENS-B-003", "score": 0.5439292192459106, "sibling_score": 0.5439292192459106, "answer_score": 0.3354595273733139, "sibling_qid": "MUM-2025-03-2273-Q017", "sibling_text": "how chains are linked together", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Chain-drive arrangement — sprockets, idlers, links and chain case", "cross_family": true }, { "answer_id": "ANCH-CHN-A-006", "score": 0.46497708559036255, "sibling_score": 0.46497708559036255, "answer_score": null, "sibling_qid": "KOL-2026-05-4216-Q003", "sibling_text": "anchor chain connection to anchor", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Holding, securing the cable for sea, and general checks", "cross_family": true }, { "answer_id": "CHAIN-TENS-C-001", "score": 0.46172118186950684, "sibling_score": 0.46172118186950684, "answer_score": null, "sibling_qid": "KOL-2020-01-3309-Q003", "sibling_text": "chain tightening", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main-engine chain drive — how you know it is slack, and how you check and tighten it", "cross_family": true } ] }, { "qid": "MUM-2026-06-3452-Q004", "text": "AIS AND LRIT ?", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "MUM-2026-06-3452", "tray": "new", "candidates": [ { "answer_id": "EPIRB-SART-002", "score": 0.46154579520225525, "sibling_score": 0.46154579520225525, "answer_score": 0.3070091366767883, "sibling_qid": "CHE-2026-05-0535-Q007", "sibling_text": "sart and ais sart", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What is an AIS-SART and how does it differ from a radar SART?", "cross_family": true }, { "answer_id": "IACS-324-001", "score": 0.38165926933288574, "sibling_score": 0.38165926933288574, "answer_score": 0.21653100103139877, "sibling_qid": "KOC-2025-02-0543-Q001", "sibling_text": "iacs", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "1. What is IACS and what are its functions?", "cross_family": true }, { "answer_id": "CII-107-P04-003", "score": 0.3260882496833801, "sibling_score": 0.3260882496833801, "answer_score": null, "sibling_qid": "KOC-2024-02-0301-Q011", "sibling_text": "cii and eexi", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "CII within the family — EEXI, EEDI, SEEMP, DCS, the GHG strategy and the regional rules", "cross_family": true } ] }, { "qid": "MUM-2026-06-3453-Q002", "text": "LRIT and AIS ?", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "MUM-2026-06-3453", "tray": "new", "candidates": [ { "answer_id": "EPIRB-SART-002", "score": 0.4644570052623749, "sibling_score": 0.4644570052623749, "answer_score": 0.27430003583431245, "sibling_qid": "CHE-2026-05-0535-Q007", "sibling_text": "sart and ais sart", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What is an AIS-SART and how does it differ from a radar SART?", "cross_family": true }, { "answer_id": "IACS-324-001", "score": 0.37737762928009033, "sibling_score": 0.37737762928009033, "answer_score": 0.2007330447435379, "sibling_qid": "KOC-2025-02-0543-Q001", "sibling_text": "iacs", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "1. What is IACS and what are its functions?", "cross_family": true }, { "answer_id": "TONN-007", "score": 0.36018460988998413, "sibling_score": 0.36018460988998413, "answer_score": null, "sibling_qid": "KOC-2021-11-0038-Q009", "sibling_text": "grt and nrt", "sibling_family": "", "via": "sibling", "answer_title": "Differentiate GT, NT, GRT/NRT, DWT, Lightweight and Displacement", "cross_family": false } ] }, { "qid": "MUM-2026-06-3454-Q002", "text": "Poker gauge ?", "family": "Gauges & Tools", "subtopic": "Poker Gauge", "tid": "MUM-2026-06-3454", "tray": "review", "candidates": [ { "answer_id": "PROP-PN-C-002", "score": 0.6613917350769043, "sibling_score": 0.6613917350769043, "answer_score": null, "sibling_qid": "KOC-2026-05-2124-Q005", "sibling_text": "what are you measuring with poker gauge", "sibling_family": "Gauges & Tools", "via": "sibling", "answer_title": "Propeller drop — measurement and consequences", "cross_family": false }, { "answer_id": "DUS-P1-02", "score": 0.5717690587043762, "sibling_score": 0.5717690587043762, "answer_score": null, "sibling_qid": "KOC-2026-09-2165-Q008", "sibling_text": "stern tube with poker gauge diagram", "sibling_family": "Gauges & Tools", "via": "sibling", "answer_title": "Plans, drawings and special tools kept ready for drydock — engine-department view", "cross_family": false }, { "answer_id": "IND-CARD-A-001", "score": 0.46977391839027405, "sibling_score": 0.46977391839027405, "answer_score": 0.33693552017211914, "sibling_qid": "KOC-2026-03-1113-Q006", "sibling_text": "indicator cards", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Reading the power / draw card — what it tells you", "cross_family": true } ] }, { "qid": "MUM-2026-06-3454-Q006", "text": "Corrections of COA?", "family": "Maritime Law & Certificates", "subtopic": "COA", "tid": "MUM-2026-06-3454", "tray": "new", "candidates": [ { "answer_id": "SHAFT-ALN-002", "score": 0.5369715690612793, "sibling_score": 0.5369715690612793, "answer_score": null, "sibling_qid": "KOL-2024-02-3674-Q002", "sibling_text": "offset how to correct", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Fair-curve alignment, influence numbers and propeller overhang", "cross_family": true }, { "answer_id": "CYL-LINER-P02-004", "score": 0.4610135853290558, "sibling_score": 0.4610135853290558, "answer_score": null, "sibling_qid": "KOL-2025-12-4075-Q005", "sibling_text": "one unit ovality more reasons how to correct", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L4 · T044-PART_02-G004High", "cross_family": true }, { "answer_id": "CO2-SYS-002", "score": 0.4463236331939697, "sibling_score": 0.4463236331939697, "answer_score": null, "sibling_qid": "KOC-2024-04-0329-Q007", "sibling_text": "fixed co2 system checks", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 maintenance, inspection, testing and survey routines", "cross_family": true } ] }, { "qid": "MUM-2026-06-3454-Q007", "text": "SOLAS CHAPTER 11-1?", "family": "Other Conventions", "subtopic": "Polar Code", "tid": "MUM-2026-06-3454", "tray": "review", "candidates": [ { "answer_id": "SOLAS-CH-012", "score": 0.6719499230384827, "sibling_score": 0.6719499230384827, "answer_score": null, "sibling_qid": "MUM-2026-06-3561-Q002", "sibling_text": "solas chapter 11 1 11 2", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "SOLAS XI-1, XI-2 and XIII - safety, security and audit", "cross_family": false }, { "answer_id": "SOLAS-CH-015", "score": 0.5834475755691528, "sibling_score": 0.5834475755691528, "answer_score": 0.3059778720140457, "sibling_qid": "MUM-2025-03-0242-Q006", "sibling_text": "solas chap 11", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS chapters overview - current count and scope", "cross_family": true }, { "answer_id": "SOLAS12-BC-B-002", "score": 0.5375418663024902, "sibling_score": 0.5375418663024902, "answer_score": 0.2939912125468254, "sibling_qid": "MUM-2026-06-3497-Q003", "sibling_text": "solas chapter 12", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "SOLAS Chapter XII — the 14 regulations (list)", "cross_family": false } ] }, { "qid": "MUM-2026-06-3454-Q008", "text": "MLC owner liability and certificates?", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2026-06-3454", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-006", "score": 0.6125227808952332, "sibling_score": 0.6125227808952332, "answer_score": 0.33889702558517454, "sibling_qid": "MUM-2026-06-3656-Q002", "sibling_text": "certificates under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false }, { "answer_id": "CLC-CIV-B-003", "score": 0.5238626599311829, "sibling_score": 0.5238626599311829, "answer_score": null, "sibling_qid": "MUM-2026-04-0880-Q004", "sibling_text": "mlc what is shipowner liability", "sibling_family": "MLC", "via": "sibling", "answer_title": "LLMC: purpose, scope and limitation of maritime claims", "cross_family": false }, { "answer_id": "CLC-CIV-B-004", "score": 0.4954776167869568, "sibling_score": 0.4954776167869568, "answer_score": null, "sibling_qid": "KOL-2023-10-0781-Q006", "sibling_text": "mlc certificate p i club marine insurance", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Marine insurance and the P&I club: hull cover vs liability cover", "cross_family": true } ] }, { "qid": "MUM-2026-06-3455-Q003", "text": "CII exemptions to which ships and what are the exemptions ?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "CII / Carbon Intensity", "tid": "MUM-2026-06-3455", "tray": "new", "candidates": [ { "answer_id": "EEDI-A-003", "score": 0.6246823668479919, "sibling_score": 0.6246823668479919, "answer_score": 0.4528407514095306, "sibling_qid": "KOL-2026-03-1198-Q007", "sibling_text": "which ships are exempted from eedi", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Which ships EEDI applies to — scope, exemptions and amendments", "cross_family": false }, { "answer_id": "EEDI-B-001", "score": 0.5532967448234558, "sibling_score": 0.5532967448234558, "answer_score": null, "sibling_qid": "KOL-2024-02-0814-Q002", "sibling_text": "eedi calculation formula which ship is exempted from eedi", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "EEDI — formula, unit and the calculation terms", "cross_family": false }, { "answer_id": "SEEMP-123-B-001", "score": 0.5351877808570862, "sibling_score": 0.5351877808570862, "answer_score": null, "sibling_qid": "KOL-2023-12-0798-Q005", "sibling_text": "i think for this question along with eexi and cii its also imp to mention abt seemp pt 3 which was also adopted during mepc 76 and ships need to have a seemp pt 3 before 1 jan 2023 so they were satisfied", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP Part III — the ship's operational carbon-intensity (CII) plan", "cross_family": false } ] }, { "qid": "MUM-2026-06-3455-Q004", "text": "Aer in cii ?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "CII / Carbon Intensity", "tid": "MUM-2026-06-3455", "tray": "new", "candidates": [ { "answer_id": "AV6-P05-02", "score": 0.45934927463531494, "sibling_score": 0.45934927463531494, "answer_score": 0.3428595796227455, "sibling_qid": "KOL-2025-09-1062-Q010", "sibling_text": "aer and eeoi difference", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "AER versus EEOI — formulas, denominators and calculation period", "cross_family": false }, { "answer_id": "CII-P01-001", "score": 0.43518102169036865, "sibling_score": 0.43518102169036865, "answer_score": null, "sibling_qid": "KOL-2024-11-0889-Q005", "sibling_text": "cii in details", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is CII and what is its purpose?", "cross_family": false }, { "answer_id": "CII-107-P04-003", "score": 0.4336516261100769, "sibling_score": 0.4336516261100769, "answer_score": null, "sibling_qid": "KOC-2024-02-0301-Q011", "sibling_text": "cii and eexi", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "CII within the family — EEXI, EEDI, SEEMP, DCS, the GHG strategy and the regional rules", "cross_family": false } ] }, { "qid": "MUM-2026-06-3455-Q007", "text": "Cell guides on container?", "family": "Boilers - Operations & Firing", "subtopic": "DP Transmitter", "tid": "MUM-2026-06-3455", "tray": "new", "candidates": [ { "answer_id": "KGF-A-004", "score": 0.4140261113643646, "sibling_score": 0.4140261113643646, "answer_score": null, "sibling_qid": "MUM-2026-01-0676-Q003", "sibling_text": "container", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Hull / midship cross-section: draw & identify", "cross_family": true }, { "answer_id": "ICCP-P02-001", "score": 0.407204270362854, "sibling_score": 0.407204270362854, "answer_score": null, "sibling_qid": "MUM-2025-09-1678-Q005", "sibling_text": "what is reference cell", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP reference cell / reference electrode — purpose, material, location, selection", "cross_family": true }, { "answer_id": "DP-TX-001", "score": 0.40655964612960815, "sibling_score": 0.40655964612960815, "answer_score": null, "sibling_qid": "KOC-2024-03-1340-Q013", "sibling_text": "dp cell", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "DP cell / DP transmitter — working principle, construction and signal", "cross_family": false } ] }, { "qid": "MUM-2026-06-3456-Q004", "text": "What is damage control booklet?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "SEEMP I/II/III", "tid": "MUM-2026-06-3456", "tray": "new", "candidates": [ { "answer_id": "DS-P04-003", "score": 0.6318554282188416, "sibling_score": 0.6318554282188416, "answer_score": 0.4156282842159271, "sibling_qid": "KOC-2022-08-0081-Q010", "sibling_text": "damage stability booklet", "sibling_family": "", "via": "sibling", "answer_title": "The damage stability booklet: contents and onboard use", "cross_family": false }, { "answer_id": "STAB-BOOK-003", "score": 0.6143505573272705, "sibling_score": 0.6143505573272705, "answer_score": 0.40870419442653655, "sibling_qid": "KOC-2024-07-0361-Q006", "sibling_text": "damage stability booklet content", "sibling_family": "", "via": "sibling", "answer_title": "The damage stability booklet", "cross_family": false }, { "answer_id": "DS-P05-002", "score": 0.5418952703475952, "sibling_score": 0.5418952703475952, "answer_score": 0.39355526864528656, "sibling_qid": "KOL-2021-08-0544-Q003", "sibling_text": "what is damage control plan as par sloas chapter 2 4 rest forgot", "sibling_family": "", "via": "sibling", "answer_title": "2. Damage control plan, hull damage/flooding actions and casualty response", "cross_family": false } ] }, { "qid": "MUM-2026-06-3456-Q022", "text": "Difference between IEC and NEMA?", "family": "Electrical - Distribution & MSB", "subtopic": "", "tid": "MUM-2026-06-3456", "tray": "new", "candidates": [ { "answer_id": "CBL-INS-A-001", "score": 0.5641283392906189, "sibling_score": 0.5641283392906189, "answer_score": null, "sibling_qid": "KOC-2026-08-2119-Q014", "sibling_text": "iec cable specification", "sibling_family": "Electrical - Distribution & MSB", "via": "sibling", "answer_title": "IEC / marine cable standards used for shipboard cables", "cross_family": false }, { "answer_id": "IEEC-002", "score": 0.5352476835250854, "sibling_score": 0.5352476835250854, "answer_score": null, "sibling_qid": "KOL-2018-06-0184-Q003", "sibling_text": "ieec", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "IEEC validity and the conditions under which it changes", "cross_family": true }, { "answer_id": "IEEC-001", "score": 0.5333243608474731, "sibling_score": 0.5333243608474731, "answer_score": null, "sibling_qid": "MUM-2022-11-2715-Q003", "sibling_text": "ieec", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Basis, requirement and prerequisites for issuing an IEEC", "cross_family": true } ] }, { "qid": "MUM-2026-06-3457-Q005", "text": "Ship is listed what will u do ?", "family": "Ship Construction & Stability", "subtopic": "", "tid": "MUM-2026-06-3457", "tray": "new", "candidates": [ { "answer_id": "ISMNC-006", "score": 0.5648303627967834, "sibling_score": 0.5648303627967834, "answer_score": 0.4036068946123123, "sibling_qid": "MUM-2026-02-0741-Q004", "sibling_text": "ur ship has mnc what u will do", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Your ship has been issued a major non-conformity: what action do you take, what are the repercussions, and can the ship sail with it?", "cross_family": true }, { "answer_id": "MLC-WRH-B-009", "score": 0.5404061675071716, "sibling_score": 0.5404061675071716, "answer_score": null, "sibling_qid": "CHE-2025-08-0426-Q009", "sibling_text": "ship owner abandoned the ship what will you do as per mlc i told financial security certificate for repartation", "sibling_family": "MLC", "via": "sibling", "answer_title": "Abandonment — financial security and repatriation", "cross_family": true }, { "answer_id": "IMDG-004", "score": 0.5214229226112366, "sibling_score": 0.5214229226112366, "answer_score": null, "sibling_qid": "CHE-2025-10-0070-Q017", "sibling_text": "who you know imdg cargo taken by you as well implemented in ship", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "How do you identify IMDG cargo on board — how you know it is coming, and how you identify it with no documents", "cross_family": true } ] }, { "qid": "MUM-2026-06-3457-Q006", "text": "AE decarb and trial ? Fatigue and examples on ship How to now reefer container is working normal by looking", "family": "Refrigeration & AC", "subtopic": "Reefer Cargo Prep", "tid": "MUM-2026-06-3457", "tray": "review", "candidates": [ { "answer_id": "REEF-COMP-008", "score": 0.6809069514274597, "sibling_score": 0.6809069514274597, "answer_score": null, "sibling_qid": "MUM-2026-06-3475-Q011", "sibling_text": "how to know reefer container is working normal by looking", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Valves, clearances, oil carry-over, refrigerant-in-oil, frosting, tandem valves, cooling — fault checks", "cross_family": false }, { "answer_id": "REEF-COMP-001", "score": 0.6168872714042664, "sibling_score": 0.6168872714042664, "answer_score": null, "sibling_qid": "KOC-2024-07-0369-Q013", "sibling_text": "low pressure cut out in reefer system internal paul sir type of ship container", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Reefer/AC compressor safeties and cut-outs — safety valve, HP and LP cut-outs", "cross_family": false }, { "answer_id": "CAP-CTRL-004", "score": 0.5907657742500305, "sibling_score": 0.5907657742500305, "answer_score": null, "sibling_qid": "MUM-2025-08-2352-Q004", "sibling_text": "ship is going from hot climate to cold climate but the ac is not coping up and temp is getting hot capacity control system is not working actions for troubleshooting", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "CG-004 · Actions when the capacity control / unloader is not working", "cross_family": false } ] }, { "qid": "MUM-2026-06-3458-Q001", "text": "what type of boiler on ship, how many drums in boiler, which drum is bigger?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-06-3458", "tray": "new", "candidates": [ { "answer_id": "BLR-DRUM-002", "score": 0.6128150224685669, "sibling_score": 0.6128150224685669, "answer_score": null, "sibling_qid": "KOL-2025-07-1812-Q007", "sibling_text": "boiler drum construction", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Steam-drum construction, material and plate manufacture, and construction-stage tests", "cross_family": true }, { "answer_id": "BLR-DRUM-007", "score": 0.6085114479064941, "sibling_score": 0.6085114479064941, "answer_score": 0.4999701797962189, "sibling_qid": "KOL-2021-12-3496-Q003", "sibling_text": "boiler water drum construction", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Boiler water-drum (mud drum) construction", "cross_family": true }, { "answer_id": "AEME-DIFF-001", "score": 0.5974879264831543, "sibling_score": 0.5974879264831543, "answer_score": null, "sibling_qid": "MUM-2026-05-3082-Q001", "sibling_text": "type of engine boiler aux engine generator", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false } ] }, { "qid": "MUM-2026-06-3458-Q002", "text": "air com stage ratio?", "family": "Air Compressor", "subtopic": "Reciprocating Compressor", "tid": "MUM-2026-06-3458", "tray": "review", "candidates": [ { "answer_id": "AC-STAGE-002", "score": 0.6791223883628845, "sibling_score": 0.6791223883628845, "answer_score": 0.41846741586923597, "sibling_qid": "KOL-2025-12-2031-Q006", "sibling_text": "mac ratio btwn stages", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Intermediate pressure / pressure ratio for minimum work", "cross_family": false }, { "answer_id": "AC-STAGE-001", "score": 0.5239405035972595, "sibling_score": 0.5239405035972595, "answer_score": null, "sibling_qid": "KOL-2017-12-1333-Q003", "sibling_text": "why compressor works in stages relation between each stages", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Why multistage compression — advantages over single-stage", "cross_family": false }, { "answer_id": "ACRV-001", "score": 0.50239497423172, "sibling_score": 0.50239497423172, "answer_score": null, "sibling_qid": "MUM-2026-05-3309-Q008", "sibling_text": "air comp ist stage relif valve lifting reason internal", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "First-stage relief valve lifting or leaking — reasons and checks", "cross_family": false } ] }, { "qid": "MUM-2026-06-3458-Q003", "text": "what is functional of delivery VV in 4 stroke engine?", "family": "Electrical - Generator & Alternator", "subtopic": "AVR / Excitation", "tid": "MUM-2026-06-3458", "tray": "new", "candidates": [ { "answer_id": "AEFP-471-005", "score": 0.5873669981956482, "sibling_score": 0.5873669981956482, "answer_score": null, "sibling_qid": "KOL-2026-07-4270-Q003", "sibling_text": "ae delivery valve function why not delivery valve in main engine", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "What is the specific purpose of the AE fuel-pump delivery valve?", "cross_family": true }, { "answer_id": "EXHV-P01-001", "score": 0.5713623762130737, "sibling_score": 0.5713623762130737, "answer_score": null, "sibling_qid": "KOL-2017-03-1282-Q001", "sibling_text": "working of exhaust vv", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": true }, { "answer_id": "FINJ-004", "score": 0.538334310054779, "sibling_score": 0.538334310054779, "answer_score": null, "sibling_qid": "KOL-2025-01-3742-Q004", "sibling_text": "fuel v v ejected from cylinder", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel injector stuck or seized — removal procedure and precautions", "cross_family": true } ] }, { "qid": "MUM-2026-06-3458-Q008", "text": "Blasting procedure ?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE Tappet", "tid": "MUM-2026-06-3458", "tray": "new", "candidates": [ { "answer_id": "AE-CSB-346-002", "score": 0.48928016424179077, "sibling_score": 0.48928016424179077, "answer_score": null, "sibling_qid": "KOC-2023-02-1807-Q004", "sibling_text": "ae thrust brg removal procedure", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Removing / overhauling the auxiliary-engine thrust bearing", "cross_family": false }, { "answer_id": "LB-SURV-C-010", "score": 0.4809078574180603, "sibling_score": 0.4809078574180603, "answer_score": null, "sibling_qid": "MUM-2026-08-3837-Q007", "sibling_text": "l b launching procedure", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Launching / lowering procedure and precautions (davit-launched)", "cross_family": true }, { "answer_id": "LB-D-001", "score": 0.45955854654312134, "sibling_score": 0.45955854654312134, "answer_score": null, "sibling_qid": "KOC-2022-12-0120-Q009", "sibling_text": "procedure to launch", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Davit-launched lifeboat — lowering & launching (drill and actual emergency)", "cross_family": true } ] }, { "qid": "MUM-2026-06-3459-Q002", "text": "Air vane motor kept in Workshop table How to overhauling ?, Checks, if vanes wear out clearance increase what to do?", "family": "Electrical - Motors & Starters", "subtopic": "IR Test / Insulation Resistance", "tid": "MUM-2026-06-3459", "tray": "review", "candidates": [ { "answer_id": "EXV-P02-001", "score": 0.6738296151161194, "sibling_score": 0.6738296151161194, "answer_score": null, "sibling_qid": "KOC-2026-01-1091-Q003", "sibling_text": "exh valve overhaul and check what clearances", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve overhaul & dismantling — procedure and precautions", "cross_family": true }, { "answer_id": "AIR-GAP-003", "score": 0.6286159157752991, "sibling_score": 0.6286159157752991, "answer_score": null, "sibling_qid": "KOL-2021-01-2416-Q004", "sibling_text": "motor air gap how do u measure what are the effects of increased airgap", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "AG-3 — Effects, causes, indications and correction: high, low, uneven, contaminated gap", "cross_family": false }, { "answer_id": "AE-CRP-003", "score": 0.6279107332229614, "sibling_score": 0.6279107332229614, "answer_score": null, "sibling_qid": "KOL-2025-06-3785-Q006", "sibling_text": "checks on ae piston and clearances to be taken with clearance values i just answered clearance will be mentioned on the manual", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE piston, ring and groove checks; piston material", "cross_family": true } ] }, { "qid": "MUM-2026-06-3462-Q001", "text": "No introduction, no asking of past attempts direct sanjib sir started questions.", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-06-3462", "tray": "new", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.5158120393753052, "sibling_score": 0.5158120393753052, "answer_score": null, "sibling_qid": "MUM-2026-03-0866-Q001", "sibling_text": "coc attempt internal sirish sir external vishwanathan iyer sir started with what function you are applying how many ships type of ships you did after class 4 pre sea from where how many written cleared what about other functions", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "MGPS-004", "score": 0.49225080013275146, "sibling_score": 0.49225080013275146, "answer_score": null, "sibling_qid": "KOC-2026-04-1742-Q007", "sibling_text": "draw mgps int no questions he want specific answers", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "Maintenance checks on the MGPS, and what the MGPS drawing should show", "cross_family": true }, { "answer_id": "SOFT-START-P01-001", "score": 0.4851199984550476, "sibling_score": 0.4851199984550476, "answer_score": null, "sibling_qid": "KOL-2022-10-2613-Q005", "sibling_text": "soft starter i think one more question he asked all questions asked by external only", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Soft Starter — Definition, Purpose and Working", "cross_family": true } ] }, { "qid": "MUM-2026-06-3463-Q003", "text": "Battery load test ?", "family": "Electrical - Batteries & DC Systems", "subtopic": "Battery Testing / Load Test / SG", "tid": "MUM-2026-06-3463", "tray": "review", "candidates": [ { "answer_id": "BDC-P04-03", "score": 0.8250928521156311, "sibling_score": 0.8250928521156311, "answer_score": 0.5607830286026001, "sibling_qid": "MUM-2025-07-1567-Q004", "sibling_text": "load test of a battery value", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "Battery load test on board — preparation, deciding the load, and reading the result", "cross_family": false }, { "answer_id": "BAT-CHG-05", "score": 0.49507381319999694, "sibling_score": null, "answer_score": 0.49507381319999694, "sibling_qid": "", "sibling_text": "battery charging full charged under charged and overcharged", "sibling_family": "", "via": "answer_title", "answer_title": "Battery Charging-Full charged under charged and overcharged", "cross_family": false }, { "answer_id": "BDC-P04-02", "score": 0.47051552832126614, "sibling_score": null, "answer_score": 0.47051552832126614, "sibling_qid": "", "sibling_text": "battery health and state of charge weak cell dead cell and when to renew layered evidence visual condition open circuit voltage per cell and bank specific gravity per cell lead acid on load voltage behaviour internal resistance trend capacity test no single reading condemns a battery fully charged indicators beyond a voltmeter gravity at maximum and unchanged across successive readings at the make", "sibling_family": "", "via": "answer_title", "answer_title": "Battery health and state of charge — weak cell, dead cell, and when to renew", "cross_family": false } ] }, { "qid": "MUM-2026-06-3467-Q004", "text": "a socket in workshop.How to identify?", "family": "Other Conventions", "subtopic": "IMDG Code", "tid": "MUM-2026-06-3467", "tray": "new", "candidates": [ { "answer_id": "ELEC-SAFE-007", "score": 0.4097047448158264, "sibling_score": 0.4097047448158264, "answer_score": null, "sibling_qid": "KOL-2017-03-2115-Q006", "sibling_text": "details about normal household socket", "sibling_family": "", "via": "sibling", "answer_title": "Portable equipment, sockets, light fittings and galley appliances", "cross_family": false }, { "answer_id": "EARTH-NER-A-003", "score": 0.3969244956970215, "sibling_score": 0.3969244956970215, "answer_score": 0.29266267716884614, "sibling_qid": "KOL-2021-02-3379-Q004", "sibling_text": "in a 3 pin electrical socket how will you come to know which pin is live and which one is neutral suppose you don t have a tester then how will you come to know don t know why he asked an electrical question in function 6 but hey who s complaining", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Three-pin plug / socket — live, neutral and earth pins", "cross_family": true }, { "answer_id": "GMC-583-B-006", "score": 0.3946910798549652, "sibling_score": 0.3946910798549652, "answer_score": 0.29540906846523285, "sibling_qid": "MUM-2025-11-1770-Q006", "sibling_text": "3 naked wire in workshop how u knw ac or dc", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Unmarked wires in the workshop — is it AC or DC?", "cross_family": true } ] }, { "qid": "MUM-2026-06-3468-Q002", "text": "Document regarding survey status. Which document tell what surveys r upcoming ?", "family": "Surveys - Statutory", "subtopic": "Surveys - General", "tid": "MUM-2026-06-3468", "tray": "new", "candidates": [ { "answer_id": "SURV-ANNIV-002", "score": 0.6303454637527466, "sibling_score": 0.6303454637527466, "answer_score": null, "sibling_qid": "KOC-2025-11-0726-Q001", "sibling_text": "intermediate survey renewal survey renwal date", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "How are the annual, intermediate and renewal survey dates and windows worked out from the anniversary date?", "cross_family": false }, { "answer_id": "SURV-GEN-001", "score": 0.6273123025894165, "sibling_score": 0.6273123025894165, "answer_score": 0.3793087691068649, "sibling_qid": "KOC-2023-10-0223-Q006", "sibling_text": "what are the surveys carried nd period", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What statutory surveys are carried out on board?", "cross_family": false }, { "answer_id": "ESP-A-002", "score": 0.5986276268959045, "sibling_score": 0.5986276268959045, "answer_score": null, "sibling_qid": "KOC-2025-12-0750-Q002", "sibling_text": "enhanced survey program cross what s the survey intervel", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "On which ships is ESP applicable, under which statutory framework, and when is it carried out?", "cross_family": false } ] }, { "qid": "MUM-2026-06-3468-Q003", "text": "⁠what to check on liner before renewing. Certificates and markings ?", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "MUM-2026-06-3468", "tray": "review", "candidates": [ { "answer_id": "CYL-LINER-P03-005", "score": 0.6508213877677917, "sibling_score": 0.6508213877677917, "answer_score": 0.42304680347442625, "sibling_qid": "MUM-2026-06-3537-Q005", "sibling_text": "what certificates are present for new liner if we have to install new liner", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Spare cylinder liner — what checks and certificates before you fit it?", "cross_family": false }, { "answer_id": "CYL-LINER-P03-006", "score": 0.6192706227302551, "sibling_score": 0.6192706227302551, "answer_score": null, "sibling_qid": "MUM-2026-03-2626-Q002", "sibling_text": "after decarb of m e what checks on liner will decide that liner has to be renewed", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Fitting a new cylinder liner — checks and precautions during renewal and installation", "cross_family": false }, { "answer_id": "CYL-LINER-P03-007", "score": 0.6059443354606628, "sibling_score": 0.6059443354606628, "answer_score": null, "sibling_qid": "KOL-2021-03-1582-Q003", "sibling_text": "checks in liner during overhaul", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Cylinder liner checks at overhaul, decarb and under-piston inspection", "cross_family": false } ] }, { "qid": "MUM-2026-06-3468-Q005", "text": "⁠how bilge keel is attached. If damaged how to repair?", "family": "Ship Construction & Stability", "subtopic": "Bilge Keel", "tid": "MUM-2026-06-3468", "tray": "review", "candidates": [ { "answer_id": "BK-004", "score": 0.6509000658988953, "sibling_score": 0.6509000658988953, "answer_score": 0.5609602004289627, "sibling_qid": "CHE-2026-04-0169-Q008S2", "sibling_text": "how bilge keel is fitted and what arrangement is given if the bilge keel get rupture or tore as it fitted on the ship hull it may damage the hull know many cross questions", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "How is a bilge keel attached to the hull, and how is hull cracking or rupture controlled?", "cross_family": false }, { "answer_id": "BK-003", "score": 0.5731894969940186, "sibling_score": 0.5731894969940186, "answer_score": null, "sibling_qid": "KOC-2026-03-0886-Q007", "sibling_text": "what happens if bilge keel projected out", "sibling_family": "", "via": "sibling", "answer_title": "What are the bilge-keel design, length, depth and protrusion requirements?", "cross_family": false }, { "answer_id": "BK-001", "score": 0.5703492760658264, "sibling_score": 0.5703492760658264, "answer_score": null, "sibling_qid": "KOC-2026-05-2128-Q003", "sibling_text": "bilge keel draw and explain", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "What is a bilge keel and what is its purpose?", "cross_family": false } ] }, { "qid": "MUM-2026-06-3469-Q001", "text": "types of vessel done ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-06-3469", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.7595098614692688, "sibling_score": 0.7595098614692688, "answer_score": null, "sibling_qid": "MUM-2026-02-1280-Q001", "sibling_text": "type of ship done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.6934290528297424, "sibling_score": 0.6934290528297424, "answer_score": null, "sibling_qid": "CHE-2026-02-0481-Q001", "sibling_text": "type of vessels sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "SOLAS12-BC-A-001", "score": 0.6760466694831848, "sibling_score": 0.6760466694831848, "answer_score": null, "sibling_qid": "MUM-2026-04-2958-Q001", "sibling_text": "ship done bulk carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "SOLAS definition and scope of a bulk carrier", "cross_family": false } ] }, { "qid": "MUM-2026-06-3469-Q002", "text": "engine type make ?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-06-3469", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.7457458972930908, "sibling_score": 0.7457458972930908, "answer_score": null, "sibling_qid": "KOL-2026-03-2048-Q001", "sibling_text": "type of engine done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7339912056922913, "sibling_score": 0.7339912056922913, "answer_score": null, "sibling_qid": "MUM-2026-05-3259-Q007", "sibling_text": "ae engine make and type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.7150795459747314, "sibling_score": 0.7150795459747314, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false } ] }, { "qid": "MUM-2026-06-3469-Q006", "text": "types of lube of testing in tail shaft monitoring?", "family": "Drydock & Underwater Surveys", "subtopic": "Stern Tube / Tail Shaft", "tid": "MUM-2026-06-3469", "tray": "new", "candidates": [ { "answer_id": "INT-SHAFT-003", "score": 0.6417561173439026, "sibling_score": 0.6417561173439026, "answer_score": 0.45691631138324734, "sibling_qid": "MUM-2026-06-3408-Q005", "sibling_text": "intermediate shaft lubrication type", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "3. Intermediate-shaft bearings: lubrication, high temperature, survey and load", "cross_family": false }, { "answer_id": "LO-TEST-P01-003", "score": 0.6251855492591858, "sibling_score": 0.6251855492591858, "answer_score": null, "sibling_qid": "KOC-2026-05-0004-Q002", "sibling_text": "shore lube oil testing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Reading a shore analysis report: metals, FTIR and red flags", "cross_family": true }, { "answer_id": "LO-TEST-P01-001", "score": 0.6109905242919922, "sibling_score": 0.6109905242919922, "answer_score": null, "sibling_qid": "MUM-2026-09-3880-Q004", "sibling_text": "lube oil test", "sibling_family": "Lube Oil System", "via": "sibling", "answer_title": "Onboard lube-oil tests and the viscosity test", "cross_family": true } ] }, { "qid": "MUM-2026-06-3469-Q007", "text": "bwts, what all measurements and values you record ?", "family": "Other Conventions", "subtopic": "Ballast Water Convention / BWM / BWMS", "tid": "MUM-2026-06-3469", "tray": "new", "candidates": [ { "answer_id": "NOISE-CODE-001", "score": 0.5872750282287598, "sibling_score": 0.5872750282287598, "answer_score": null, "sibling_qid": "MUM-2026-09-3958-Q009", "sibling_text": "noise code measurements and instrument and also exact figures", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is the Noise Code — under which convention, and what does it cover?", "cross_family": false }, { "answer_id": "EGCS-393-003", "score": 0.5395670533180237, "sibling_score": 0.5395670533180237, "answer_score": 0.40369971096515656, "sibling_qid": "MUM-2024-09-2771-Q005", "sibling_text": "scrubber which all parameters do you record", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Monitored parameters, records and washwater discharge criteria", "cross_family": true }, { "answer_id": "CII-CALC-P03-001", "score": 0.5372879505157471, "sibling_score": 0.5372879505157471, "answer_score": null, "sibling_qid": "MUM-2026-04-0895-Q002", "sibling_text": "what measurements", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Calculating attained & required CII — formula, unit, reduction factor, measurements", "cross_family": true } ] }, { "qid": "MUM-2026-06-3470-Q006", "text": "Specification of main engine detail the letter ?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-06-3470", "tray": "review", "candidates": [ { "answer_id": "ENG-NOM-006", "score": 0.724949300289154, "sibling_score": 0.724949300289154, "answer_score": null, "sibling_qid": "CHE-2026-05-0585-Q001", "sibling_text": "main engine specification complete", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Short-form asks: SMC-C, LMC, and ME vs MC quickly", "cross_family": false }, { "answer_id": "ALT-MTN-B-001", "score": 0.6574831008911133, "sibling_score": 0.6574831008911133, "answer_score": null, "sibling_qid": "MUM-2026-02-1281-Q001", "sibling_text": "main engine specification mc c", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Routine onboard alternator maintenance checks", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.6553648114204407, "sibling_score": 0.6553648114204407, "answer_score": 0.4739014506340027, "sibling_qid": "MUM-2026-05-3166-Q002", "sibling_text": "main engine type it s nomenclature", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false } ] }, { "qid": "MUM-2026-06-3470-Q013", "text": "Told lead ball ? (Asked what is the size of that ball)", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Bumping Clearance", "tid": "MUM-2026-06-3470", "tray": "new", "candidates": [ { "answer_id": "RUN-CLR-002", "score": 0.5179506540298462, "sibling_score": 0.5179506540298462, "answer_score": null, "sibling_qid": "MUM-2025-11-2874-Q005", "sibling_text": "bumping clearance told about lead ball didn t accept told rest two also didn t accept", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Bumping clearance — what it is, why it matters, effects, and how it is adjusted", "cross_family": true }, { "answer_id": "EGTP-P02-012", "score": 0.4588742256164551, "sibling_score": 0.4588742256164551, "answer_score": null, "sibling_qid": "KOC-2025-10-1948-Q004", "sibling_text": "value of s if 60bore dia", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Stroke, Bore Ratio and Super-Long Stroke", "cross_family": false }, { "answer_id": "MAC-353-008", "score": 0.4413558542728424, "sibling_score": 0.4413558542728424, "answer_score": null, "sibling_qid": "MUM-2026-03-2944-Q008", "sibling_text": "what is diameter of lead wire used for taking bumping clearance of compressor", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Taking bumping clearance without opening the cylinder (lead-ball method)", "cross_family": true } ] }, { "qid": "MUM-2026-06-3472-Q011", "text": "Type of DG ?", "family": "Heat Exchangers & Coolers", "subtopic": "JCW System", "tid": "MUM-2026-06-3472", "tray": "new", "candidates": [ { "answer_id": "SYNC-B-001", "score": 0.5324574112892151, "sibling_score": 0.5324574112892151, "answer_score": null, "sibling_qid": "MUM-2025-08-1629-Q001", "sibling_text": "synchronization of dg", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Synchroscope — construction, working and purpose", "cross_family": true }, { "answer_id": "LO-CLR-007", "score": 0.5232794284820557, "sibling_score": 0.5232794284820557, "answer_score": null, "sibling_qid": "KOC-2025-12-1079-Q015", "sibling_text": "type of lo cooler in dg", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What type of lube-oil cooler is fitted on a diesel generator?", "cross_family": true }, { "answer_id": "AEOVT-559-003", "score": 0.5074248909950256, "sibling_score": 0.5074248909950256, "answer_score": null, "sibling_qid": "MUM-2025-11-1790-Q003", "sibling_text": "over speed of dg", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Overspeed of a diesel generator / auxiliary engine — what it is and why it matters", "cross_family": true } ] }, { "qid": "MUM-2026-06-3472-Q012", "text": "Con-rod bearing ovality check ? By internal: How to calculate power of a cylinder.", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Connecting Rod & Bolts", "tid": "MUM-2026-06-3472", "tray": "review", "candidates": [ { "answer_id": "CRB-014", "score": 0.6667618155479431, "sibling_score": 0.6667618155479431, "answer_score": 0.4987435549497604, "sibling_qid": "KOL-2023-08-3632-Q002", "sibling_text": "ovality check of con rod where oversized and undersized bearings r used", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you check connecting rod ovality, and where are oversize and undersize bearings used?", "cross_family": false }, { "answer_id": "CRB-001", "score": 0.657451331615448, "sibling_score": 0.657451331615448, "answer_score": null, "sibling_qid": "MUM-2025-11-1216-Q013", "sibling_text": "con rod bearing ovality check", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What checks are carried out on the connecting rod at decarbonisation? Explain the ovality and trueness checks — how many readings, at which positions, with what instrument, and the permissible limit.", "cross_family": false }, { "answer_id": "AECR-651-002", "score": 0.6380661725997925, "sibling_score": 0.6380661725997925, "answer_score": null, "sibling_qid": "CHE-2025-08-0201-Q015", "sibling_text": "ae connecting rod checks ovality", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you take the ovality of the AE big end in a 4-stroke, and what are the ovality limits and maximum value?", "cross_family": false } ] }, { "qid": "MUM-2026-06-3473-Q001", "text": "Type of ship ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-06-3473", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8362351655960083, "sibling_score": 0.8362351655960083, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8017287850379944, "sibling_score": 0.8017287850379944, "answer_score": 0.5469861209392547, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8002189993858337, "sibling_score": 0.8002189993858337, "answer_score": 0.521619999408722, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2026-06-3473-Q002", "text": "Functions of Mineraliser ?", "family": "Fresh Water & Domestic Systems", "subtopic": "", "tid": "MUM-2026-06-3473", "tray": "new", "candidates": [ { "answer_id": "CORR-DEZ-001", "score": 0.4062961935997009, "sibling_score": 0.4062961935997009, "answer_score": null, "sibling_qid": "MUM-2025-08-2355-Q006", "sibling_text": "dezincification", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "What is dezincification?", "cross_family": true }, { "answer_id": "SGB-212-001", "score": 0.40585774183273315, "sibling_score": 0.40585774183273315, "answer_score": null, "sibling_qid": "KOL-2025-10-3865-Q003", "sibling_text": "dezincification", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Dezincification of brass", "cross_family": true }, { "answer_id": "BWTEST-C-001", "score": 0.3938712179660797, "sibling_score": 0.3938712179660797, "answer_score": null, "sibling_qid": "KOL-2018-07-1395-Q003", "sibling_text": "hardness non hardness alkaline and non alkaline salts", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "pH / acidity control — why pH is held, and what acidic or high-pH water means", "cross_family": true } ] }, { "qid": "MUM-2026-06-3473-Q003", "text": "PMS of Mineraliser?", "family": "Fresh Water & Domestic Systems", "subtopic": "", "tid": "MUM-2026-06-3473", "tray": "new", "candidates": [ { "answer_id": "BDN-001-004", "score": 0.4360171854496002, "sibling_score": 0.4360171854496002, "answer_score": null, "sibling_qid": "KOC-2023-05-0980-Q007", "sibling_text": "what is ppm and m stands for", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Fuel spec on the BDN — sulphur, ISO 8217, % m/m, ppm", "cross_family": true }, { "answer_id": "PMS-392-002", "score": 0.40572893619537354, "sibling_score": 0.40572893619537354, "answer_score": null, "sibling_qid": "KOL-2020-11-1561-Q011", "sibling_text": "pms as per ism code", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "How is PMS linked with the ISM Code and SOLAS maintenance requirements?", "cross_family": true }, { "answer_id": "ODC-006", "score": 0.40544241666793823, "sibling_score": 0.40544241666793823, "answer_score": null, "sibling_qid": "KOC-2026-08-2162-Q001", "sibling_text": "what is ppm", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "PPM — what it means and what 15 ppm actually represents", "cross_family": true } ] }, { "qid": "MUM-2026-06-3473-Q004", "text": "3 way valve function in COPT?", "family": "Cargo Ops - Tankers", "subtopic": "COPT", "tid": "MUM-2026-06-3473", "tray": "new", "candidates": [ { "answer_id": "COT-P03-11", "score": 0.5903766751289368, "sibling_score": 0.5903766751289368, "answer_score": 0.40077113211154936, "sibling_qid": "CHE-2026-03-0127-Q004", "sibling_text": "what is happening when 3way valve is open in con line", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Cargo-line valve arrangements — types, double block-and-bleed, three-way valves, and a valve leaking during discharge", "cross_family": false }, { "answer_id": "AUC-P03-02", "score": 0.546475350856781, "sibling_score": 0.546475350856781, "answer_score": 0.4440540015697479, "sibling_qid": "MUM-2025-06-1136-Q008", "sibling_text": "draw 3 port 2 position valve", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "3/2 pilot-operated spring-return valve, sequence and counter-balance valves", "cross_family": true }, { "answer_id": "PLV-3-2-BF055-001", "score": 0.5287001132965088, "sibling_score": 0.5287001132965088, "answer_score": 0.4428903520107269, "sibling_qid": "MUM-2024-11-2776-Q006", "sibling_text": "draw pilot operated 3 2 valve", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Draw and explain a 3-port, 2-position (3/2) pilot- or solenoid-operated spring-return valve", "cross_family": true } ] }, { "qid": "MUM-2026-06-3473-Q005", "text": "Gland in COPT ?", "family": "Cargo Ops - Tankers", "subtopic": "COPT", "tid": "MUM-2026-06-3473", "tray": "new", "candidates": [ { "answer_id": "COPT-BF043-006", "score": 0.41894781589508057, "sibling_score": 0.41894781589508057, "answer_score": 0.22804164737462998, "sibling_qid": "KOC-2024-08-1002-Q004", "sibling_text": "how gland steam is sealing", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "6. Gland-steam sealing and seal types", "cross_family": false }, { "answer_id": "CPFE-583-017", "score": 0.40457627177238464, "sibling_score": 0.40457627177238464, "answer_score": 0.20401306673884392, "sibling_qid": "MUM-2024-02-0956-Q009", "sibling_text": "how many seals in copt", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "COPT — arrangement, seals, alarms and casing high temperature", "cross_family": false }, { "answer_id": "SBPG-A-002", "score": 0.3963320553302765, "sibling_score": 0.3963320553302765, "answer_score": 0.25669365525245663, "sibling_qid": "KOC-2025-07-1930-Q001", "sibling_text": "types of gland packing", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston-rod gland detail — neutral space, and the soft-gland terms (packing, lantern ring, neck bush)", "cross_family": true } ] }, { "qid": "MUM-2026-06-3473-Q006", "text": "Gland material ?", "family": "MARPOL - General & Compliance", "subtopic": "Bunker Sample Storage", "tid": "MUM-2026-06-3473", "tray": "new", "candidates": [ { "answer_id": "PCD-P03-04", "score": 0.5806309580802917, "sibling_score": 0.5806309580802917, "answer_score": 0.4252020984888077, "sibling_qid": "KOC-2026-05-2132-Q019", "sibling_text": "types of glandpacking with respect to materials application", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Gland packing — types, and gland leakage that persists after re-packing", "cross_family": true }, { "answer_id": "BUNK-SAMP-004", "score": 0.5673587322235107, "sibling_score": 0.5673587322235107, "answer_score": null, "sibling_qid": "KOC-2025-02-2060-Q017", "sibling_text": "material", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Sample container, material, quantity, marking and bottles", "cross_family": false }, { "answer_id": "SBPG-A-002", "score": 0.5516325235366821, "sibling_score": 0.5516325235366821, "answer_score": 0.3397024810314178, "sibling_qid": "KOC-2025-07-1928-Q001", "sibling_text": "types of gland packing", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston-rod gland detail — neutral space, and the soft-gland terms (packing, lantern ring, neck bush)", "cross_family": true } ] }, { "qid": "MUM-2026-06-3473-Q010", "text": "Dolomite composition ?", "family": "Cargo Ops - Tankers", "subtopic": "IG System", "tid": "MUM-2026-06-3473", "tray": "new", "candidates": [ { "answer_id": "EXHV-P03-006", "score": 0.4943426251411438, "sibling_score": 0.4943426251411438, "answer_score": null, "sibling_qid": "KOL-2023-08-1754-Q005", "sibling_text": "composition of stellite and nimonic exact proportion", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve materials — Stellite and Nimonic 80A: composition, use and why", "cross_family": true }, { "answer_id": "DCP-PPC-001", "score": 0.49327579140663147, "sibling_score": 0.49327579140663147, "answer_score": 0.3142944097518921, "sibling_qid": "KOC-2025-01-0511-Q002", "sibling_text": "dcp composition", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "C1 — Composition, Chemical Names & Anti-caking Agents", "cross_family": true }, { "answer_id": "COT-P02-02", "score": 0.46660560369491577, "sibling_score": 0.46660560369491577, "answer_score": null, "sibling_qid": "MUM-2025-07-1150-Q009", "sibling_text": "composition of ig gas", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "State the normal composition and key operating parameters of tanker inert gas, and explain the oxygen limits at the plant outlet and in cargo tanks.", "cross_family": false } ] }, { "qid": "MUM-2026-06-3473-Q012", "text": "3 alignments in pump name then?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Pump Overhaul", "tid": "MUM-2026-06-3473", "tray": "new", "candidates": [ { "answer_id": "PAL-620-001", "score": 0.5970363616943359, "sibling_score": 0.5970363616943359, "answer_score": 0.4186450943350792, "sibling_qid": "MUM-2022-10-1027-Q009", "sibling_text": "pump alingment", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "How do you check and set the alignment between a pump and its motor? Horizontal centrifugal pump — where the dial gauge goes and what values apply.", "cross_family": true }, { "answer_id": "PAL-620-002", "score": 0.5564385056495667, "sibling_score": 0.5564385056495667, "answer_score": 0.4446958124637604, "sibling_qid": "MUM-2025-11-2478-Q001", "sibling_text": "pump motor alignment after pump overhaul", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "How do you align and refit a pump and motor set after an overhaul, and what checks apply? The pump vibrates after overhaul — reasons and actions.", "cross_family": true }, { "answer_id": "COPT-BF043-001", "score": 0.37697703689336776, "sibling_score": null, "answer_score": 0.37697703689336776, "sibling_qid": "", "sibling_text": "1 cargo oil pump arrangement and turbine drive pump vertical centrifugal typically single stage double suction double volute at the pump room bottom for flooded suction prime mover steam turbine in the engine room not in the pump room", "sibling_family": "", "via": "answer_title", "answer_title": "1. Cargo oil pump arrangement and turbine drive", "cross_family": false } ] }, { "qid": "MUM-2026-06-3473-Q013", "text": "Gap and sag method ?", "family": "Risk & Safety Management", "subtopic": "Risk Assessment / Management", "tid": "MUM-2026-06-3473", "tray": "new", "candidates": [ { "answer_id": "AIR-GAP-003", "score": 0.3905334174633026, "sibling_score": 0.3905334174633026, "answer_score": 0.23989133685827255, "sibling_qid": "MUM-2023-12-1417-Q007", "sibling_text": "what happens if aur gap is more", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "AG-3 — Effects, causes, indications and correction: high, low, uneven, contaminated gap", "cross_family": true }, { "answer_id": "SHAFT-ALN-001", "score": 0.381994366645813, "sibling_score": 0.381994366645813, "answer_score": null, "sibling_qid": "MUM-2026-06-3585-Q008", "sibling_text": "sag gap in alignment what is soft foot in motors", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "Shaft alignment — methods and procedure", "cross_family": false }, { "answer_id": "PROP-PIL-A-001", "score": 0.36417561769485474, "sibling_score": 0.36417561769485474, "answer_score": null, "sibling_qid": "KOC-2022-04-1784-Q003", "sibling_text": "skf method", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Pilgrim / SKF hydraulic nut — fitting, push-up, extraction and removal", "cross_family": true } ] }, { "qid": "MUM-2026-06-3474-Q001", "text": "Type of ship ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-06-3474", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8362351655960083, "sibling_score": 0.8362351655960083, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8017287850379944, "sibling_score": 0.8017287850379944, "answer_score": 0.5469861209392547, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8002189993858337, "sibling_score": 0.8002189993858337, "answer_score": 0.521619999408722, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2026-06-3474-Q004", "text": "LO flow in ME ?", "family": "SOLAS - Fire Safety", "subtopic": "CO2 System", "tid": "MUM-2026-06-3474", "tray": "new", "candidates": [ { "answer_id": "LO-PR-ALM-001", "score": 0.4285188317298889, "sibling_score": 0.4285188317298889, "answer_score": null, "sibling_qid": "MUM-2024-12-2783-Q009", "sibling_text": "me lo pr low", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main engine low lubricating-oil pressure — alarm, slowdown or trip: your actions as 2/E, and is the alarm true or false?", "cross_family": true }, { "answer_id": "PCD-P01-05", "score": 0.4070766270160675, "sibling_score": 0.4070766270160675, "answer_score": null, "sibling_qid": "MUM-2026-03-2622-Q002", "sibling_text": "how will you check the flow", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Checking centrifugal pump performance — head, flow and the MCSW check with M/E running", "cross_family": true }, { "answer_id": "PUR-BOWL-P03-FINAL-1-003", "score": 0.3861139118671417, "sibling_score": 0.3861139118671417, "answer_score": null, "sibling_qid": "KOL-2025-11-1825-Q006", "sibling_text": "me lo purifier overflowing reason and action", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "3. Overflow, Oil-Over-Water and Sludge Carry-Over — Causes, Checks and After-Overhaul Action", "cross_family": true } ] }, { "qid": "MUM-2026-06-3475-Q005", "text": "NDT tests?", "family": "NDT & Material Testing", "subtopic": "NDT Methods (MPI/DPT/UT/RT)", "tid": "MUM-2026-06-3475", "tray": "review", "candidates": [ { "answer_id": "NDT-METH-P01-001", "score": 0.6791149973869324, "sibling_score": 0.6791149973869324, "answer_score": 0.3601053088903427, "sibling_qid": "MUM-2026-06-3457-Q002", "sibling_text": "ndt tests", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "NDT methods, NDT vs destructive testing, and onboard use", "cross_family": false }, { "answer_id": "NDT-METH-P01-002", "score": 0.5697960257530212, "sibling_score": 0.5697960257530212, "answer_score": null, "sibling_qid": "CHE-2026-04-0501-Q006", "sibling_text": "ndt dpt", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Dye penetrant test (DPT): principle, procedure, penetrant/developer properties, safety", "cross_family": false }, { "answer_id": "IMP-CHARPY-001", "score": 0.31398652493953705, "sibling_score": null, "answer_score": 0.31398652493953705, "sibling_qid": "", "sibling_text": "what is an impact test and what is its purpose or significance it measurestoughness notch toughness energy absorbed in fracturing a notched specimen under a sudden shock high strain rate load result injoules it is adestructive mechanical test the specimen is broken and cannot go back to service it isnotan ndt", "sibling_family": "", "via": "answer_title", "answer_title": "What is an impact test, and what is its purpose or significance?", "cross_family": false } ] }, { "qid": "MUM-2026-06-3475-Q006", "text": "Lo test of AE ?", "family": "Electrical - Motors & Starters", "subtopic": "Polarization Index", "tid": "MUM-2026-06-3475", "tray": "new", "candidates": [ { "answer_id": "LO-TEST-P01-005", "score": 0.49226143956184387, "sibling_score": 0.49226143956184387, "answer_score": null, "sibling_qid": "KOL-2020-01-1510-Q008", "sibling_text": "explain properties of l o of ae", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Lube-oil properties, types and selection by duty", "cross_family": true }, { "answer_id": "LO-TEST-P01-001", "score": 0.4733753800392151, "sibling_score": 0.4733753800392151, "answer_score": null, "sibling_qid": "MUM-2026-07-3673-Q001", "sibling_text": "ae lo onboard test what all test you do", "sibling_family": "Lube Oil System", "via": "sibling", "answer_title": "Onboard lube-oil tests and the viscosity test", "cross_family": true }, { "answer_id": "LO-TEST-P01-003", "score": 0.4556035101413727, "sibling_score": 0.4556035101413727, "answer_score": null, "sibling_qid": "MUM-2026-06-3457-Q003", "sibling_text": "lub oil test of ae", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Reading a shore analysis report: metals, FTIR and red flags", "cross_family": true } ] }, { "qid": "MUM-2026-06-3475-Q008", "text": "Ship is listed wat will u do?", "family": "Surveys - Statutory", "subtopic": "Certificates List", "tid": "MUM-2026-06-3475", "tray": "new", "candidates": [ { "answer_id": "ISMNC-006", "score": 0.5650531053543091, "sibling_score": 0.5650531053543091, "answer_score": 0.40335028171539306, "sibling_qid": "MUM-2026-02-0741-Q004", "sibling_text": "ur ship has mnc what u will do", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Your ship has been issued a major non-conformity: what action do you take, what are the repercussions, and can the ship sail with it?", "cross_family": true }, { "answer_id": "MLC-WRH-B-009", "score": 0.5436508655548096, "sibling_score": 0.5436508655548096, "answer_score": null, "sibling_qid": "CHE-2026-05-0608-Q012", "sibling_text": "ship owner abandoned the ship what will you do as per mlc i told financial security certificate for repartation", "sibling_family": "MLC", "via": "sibling", "answer_title": "Abandonment — financial security and repatriation", "cross_family": true }, { "answer_id": "COT-P03-05", "score": 0.5430235266685486, "sibling_score": 0.5430235266685486, "answer_score": null, "sibling_qid": "MUM-2026-02-0754-Q001", "sibling_text": "ship arriving port what will u check as 2e", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Alarms, trips and interlocks of the IG and cargo-pumping systems tested before discharge — and how, safely", "cross_family": false } ] }, { "qid": "MUM-2026-06-3475-Q009", "text": "AE decarb and trial ?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Shop Test / Test Bed", "tid": "MUM-2026-06-3475", "tray": "new", "candidates": [ { "answer_id": "AEDEC-291-003", "score": 0.5655400156974792, "sibling_score": 0.5655400156974792, "answer_score": null, "sibling_qid": "KOL-2020-01-3309-Q001", "sibling_text": "ae decarb checks", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "3. Pre-start checks after decarb / recommissioning", "cross_family": true }, { "answer_id": "AEDEC-291-008", "score": 0.5146099328994751, "sibling_score": 0.5146099328994751, "answer_score": null, "sibling_qid": "MUM-2026-03-1004-Q008", "sibling_text": "ae lo cons high after decarb", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "8. Post-decarb abnormal running — overspeed, RPM, air-start, LO", "cross_family": true }, { "answer_id": "AEDEC-291-004", "score": 0.5136862993240356, "sibling_score": 0.5136862993240356, "answer_score": null, "sibling_qid": "KOL-2024-04-3685-Q005", "sibling_text": "ae checks after decarb how to take on load", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "4. Checks on no-load and before taking load", "cross_family": true } ] }, { "qid": "MUM-2026-06-3475-Q012", "text": "FCM AND Latest design LAYOUT for FCM ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Crosshead", "tid": "MUM-2026-06-3475", "tray": "new", "candidates": [ { "answer_id": "ETP-344-P03-003", "score": 0.3847740590572357, "sibling_score": 0.3847740590572357, "answer_score": null, "sibling_qid": "KOC-2025-08-1938-Q009", "sibling_text": "layout diagram", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Engine nomenclature, layout, mark number and engine constant", "cross_family": true }, { "answer_id": "XHEAD-303-003", "score": 0.368962824344635, "sibling_score": 0.368962824344635, "answer_score": null, "sibling_qid": "CHE-2026-02-0246-Q004", "sibling_text": "cross head pin latest design for", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead pin and bearing design, ovality and diameter checks, modern shell design", "cross_family": false }, { "answer_id": "FIS-221-005", "score": 0.3618292212486267, "sibling_score": 0.3618292212486267, "answer_score": null, "sibling_qid": "KOL-2016-10-1240-Q002", "sibling_text": "latest development in fi", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Types and latest developments of fuel injection systems", "cross_family": true } ] }, { "qid": "MUM-2026-06-3475-Q013", "text": "OMD alarm for AE wat could be the reasons?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankcase Explosion", "tid": "MUM-2026-06-3475", "tray": "new", "candidates": [ { "answer_id": "CCE-322-005", "score": 0.5593569874763489, "sibling_score": 0.5593569874763489, "answer_score": 0.41173937022686, "sibling_qid": "CHE-2026-03-0490-Q003", "sibling_text": "omd alarm actions", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Action on an OMD / crankcase-explosion alarm; checking a faulty sensor", "cross_family": false }, { "answer_id": "OMD-001", "score": 0.5446259379386902, "sibling_score": 0.5446259379386902, "answer_score": 0.41398821622133253, "sibling_qid": "KOL-2020-11-1562-Q002", "sibling_text": "action as 2e after omd alarm", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "The OMD alarm sounds on your watch. What are your actions, the checks and crankcase inspection that follow, and what are the alarm levels?", "cross_family": true }, { "answer_id": "CCE-322-006", "score": 0.5244417786598206, "sibling_score": 0.5244417786598206, "answer_score": 0.3795887380838394, "sibling_qid": "CHE-2026-03-0497-Q004", "sibling_text": "how do you test omd alarm simulation method and aerosal spray supplied by manufacturer mention the alarm values pre alarm", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Testing the OMD alarm; alarm and shutdown values", "cross_family": false } ] }, { "qid": "MUM-2026-06-3476-Q001", "text": "Difference in all curve ?", "family": "Ship Construction & Stability", "subtopic": "Stability Curves (GZ / KN)", "tid": "MUM-2026-06-3476", "tray": "new", "candidates": [ { "answer_id": "HYD-BONJ-002", "score": 0.5701596736907959, "sibling_score": 0.5701596736907959, "answer_score": null, "sibling_qid": "KOL-2026-01-1161-Q008", "sibling_text": "difference between bonzoen curve and cross curve", "sibling_family": "", "via": "sibling", "answer_title": "Bonjean curves — what they are and what they are for", "cross_family": false }, { "answer_id": "GZKN-P02-001", "score": 0.5377038717269897, "sibling_score": 0.5377038717269897, "answer_score": null, "sibling_qid": "MUM-2026-06-3603-Q006", "sibling_text": "kn curve", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Cross curves of stability (KN curves) — draw, explain, and use to build the GZ curve", "cross_family": false }, { "answer_id": "CFF-P02-002", "score": 0.5303742289543152, "sibling_score": 0.5303742289543152, "answer_score": null, "sibling_qid": "MUM-2026-06-3539-Q004", "sibling_text": "sn curve", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "The S-N curve and the endurance (fatigue) limit", "cross_family": false } ] }, { "qid": "MUM-2026-06-3476-Q004", "text": "Why ER have self closing arrangements in sounding pipe and not on deck?", "family": "Tank Calibration & Sounding", "subtopic": "", "tid": "MUM-2026-06-3476", "tray": "new", "candidates": [ { "answer_id": "MR-DS-PV-B-003", "score": 0.4800894856452942, "sibling_score": 0.4800894856452942, "answer_score": null, "sibling_qid": "KOC-2023-03-0154-Q013", "sibling_text": "automatic vent valve before deck seal", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "3. Alarms, trips, valves, and abnormal conditions of the deck seal", "cross_family": true }, { "answer_id": "FFF-A-003", "score": 0.4660947322845459, "sibling_score": 0.4660947322845459, "answer_score": null, "sibling_qid": "KOC-2025-05-2065-Q005", "sibling_text": "why deck isolation valve fitted", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fire main, hydrants, isolating and deck valves, and fire-line fittings", "cross_family": true }, { "answer_id": "VENT-HD-008", "score": 0.44115379452705383, "sibling_score": null, "answer_score": 0.44115379452705383, "sibling_qid": "", "sibling_text": "compare ballast bunker and fuel tank vent head arrangements and fittings common to all air pipe to open deck self closing float vent head load line reg 20 height automatic closing device iacs p3 ballast sea water float head guard screen no flame protection needed no flammable vapour", "sibling_family": "", "via": "answer_title", "answer_title": "Compare ballast, bunker and fuel tank vent-head arrangements and fittings", "cross_family": false } ] }, { "qid": "MUM-2026-06-3476-Q006", "text": "Relief valve pressure test ?", "family": "SOLAS - Fire Safety", "subtopic": "CO2 System", "tid": "MUM-2026-06-3476", "tray": "review", "candidates": [ { "answer_id": "CO2-SYS-002", "score": 0.7666123509407043, "sibling_score": 0.7666123509407043, "answer_score": null, "sibling_qid": "KOC-2026-03-0874-Q018", "sibling_text": "how to pressure test the system at what pressure is it tested relief valve pressure setting in the line", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 maintenance, inspection, testing and survey routines", "cross_family": false }, { "answer_id": "DCP-FIXED-A-003", "score": 0.736061155796051, "sibling_score": 0.736061155796051, "answer_score": null, "sibling_qid": "KOC-2025-01-0511-Q005", "sibling_text": "relief valves lifting pressure", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Capacities, pressures, relief settings, regulations and calculation", "cross_family": false }, { "answer_id": "ACSS-002", "score": 0.7261144518852234, "sibling_score": 0.7261144518852234, "answer_score": 0.5916289627552033, "sibling_qid": "CHE-2026-05-0643-Q012", "sibling_text": "air compressor relief valve testing", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Relief / safety valves: settings, testing, lifting reasons; bursting disc", "cross_family": true } ] }, { "qid": "MUM-2026-06-3477-Q005", "text": "LRIT and AIS ?", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "MUM-2026-06-3477", "tray": "new", "candidates": [ { "answer_id": "EPIRB-SART-002", "score": 0.4644570052623749, "sibling_score": 0.4644570052623749, "answer_score": 0.27430003583431245, "sibling_qid": "CHE-2026-05-0535-Q007", "sibling_text": "sart and ais sart", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What is an AIS-SART and how does it differ from a radar SART?", "cross_family": true }, { "answer_id": "IACS-324-001", "score": 0.37737762928009033, "sibling_score": 0.37737762928009033, "answer_score": 0.2007330447435379, "sibling_qid": "KOC-2025-02-0543-Q001", "sibling_text": "iacs", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "1. What is IACS and what are its functions?", "cross_family": true }, { "answer_id": "TONN-007", "score": 0.36018458008766174, "sibling_score": 0.36018458008766174, "answer_score": null, "sibling_qid": "KOC-2021-11-0038-Q009", "sibling_text": "grt and nrt", "sibling_family": "", "via": "sibling", "answer_title": "Differentiate GT, NT, GRT/NRT, DWT, Lightweight and Displacement", "cross_family": false } ] }, { "qid": "MUM-2026-06-3478-Q003", "text": "Difference in tankers for PPE?", "family": "Cargo Ops - Tankers", "subtopic": "IG System", "tid": "MUM-2026-06-3478", "tray": "new", "candidates": [ { "answer_id": "TKR-TYPE-001", "score": 0.6260465979576111, "sibling_score": 0.6260465979576111, "answer_score": null, "sibling_qid": "MUM-2022-11-0064-Q001", "sibling_text": "difference between product n other tankers", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "1. Crude oil tanker vs product tanker / carrier — construction and cargo-area differences", "cross_family": false }, { "answer_id": "BCH-IBC-A-001", "score": 0.5767350792884827, "sibling_score": 0.5767350792884827, "answer_score": null, "sibling_qid": "MUM-2026-07-3693-Q003", "sibling_text": "difference between type 1 2 3 tanker", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Type 1, Type 2 and Type 3 chemical tankers — the ship-type classification", "cross_family": false }, { "answer_id": "COT-05", "score": 0.5712199211120605, "sibling_score": 0.5712199211120605, "answer_score": null, "sibling_qid": "MUM-2023-10-2748-Q003", "sibling_text": "coating difference in tanks", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Chemical-tanker cargo-tank materials and coatings", "cross_family": false } ] }, { "qid": "MUM-2026-06-3479-Q001", "text": "what kind of ship sailed on?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-06-3479", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.7719913125038147, "sibling_score": 0.7719913125038147, "answer_score": null, "sibling_qid": "CHE-2026-02-0478-Q004", "sibling_text": "this type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7472386956214905, "sibling_score": 0.7472386956214905, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.43213510513305664, "sibling_score": null, "answer_score": 0.43213510513305664, "sibling_qid": "", "sibling_text": "type a and type b ships how form and cargo set the freeboard", "sibling_family": "", "via": "answer_title", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "MUM-2026-06-3480-Q001", "text": "type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-06-3480", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8362351655960083, "sibling_score": 0.8362351655960083, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8017287850379944, "sibling_score": 0.8017287850379944, "answer_score": 0.5469861209392547, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8002189993858337, "sibling_score": 0.8002189993858337, "answer_score": 0.521619999408722, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2026-06-3480-Q008", "text": "Cofferdam in crude oil tanker location ?", "family": "Cargo Ops - Tankers", "subtopic": "Tanker Type", "tid": "MUM-2026-06-3480", "tray": "new", "candidates": [ { "answer_id": "COT-07", "score": 0.6249874830245972, "sibling_score": 0.6249874830245972, "answer_score": null, "sibling_qid": "KOL-2018-10-0226-Q002", "sibling_text": "oil tanker cargo tank construction in detail", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Oil-tanker cargo-tank construction and strengthening", "cross_family": false }, { "answer_id": "SHIPTYPE-BTC-004", "score": 0.6182602047920227, "sibling_score": 0.6182602047920227, "answer_score": null, "sibling_qid": "KOC-2024-08-0398-Q002", "sibling_text": "midship section of tanker", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Oil tanker hull construction — and its construction-related electrical safety", "cross_family": false }, { "answer_id": "COT-02", "score": 0.6109849214553833, "sibling_score": 0.6109849214553833, "answer_score": null, "sibling_qid": "CHE-2026-09-3928-Q006", "sibling_text": "construction between oil tanker and chemical tanker", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Oil tanker versus chemical tanker construction", "cross_family": false } ] }, { "qid": "MUM-2026-06-3481-Q001", "text": "How thrust block clearances taken ?", "family": "Drydock & Underwater Surveys", "subtopic": "Propeller / Tailshaft / Rudder / Thrust Block specific subtopics", "tid": "MUM-2026-06-3481", "tray": "review", "candidates": [ { "answer_id": "PROP-PN-C-003", "score": 0.7274978756904602, "sibling_score": 0.7274978756904602, "answer_score": null, "sibling_qid": "MUM-2026-02-1258-Q002", "sibling_text": "how thrust block clearances taken", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Drydock propeller inspection — checks and repairs", "cross_family": false }, { "answer_id": "TB-BEAR-001", "score": 0.6630775332450867, "sibling_score": 0.6630775332450867, "answer_score": null, "sibling_qid": "MUM-2024-07-2765-Q005", "sibling_text": "thrust block arrangement how to check the clearance why is the clearance provided", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Thrust bearing clearance — measurement procedure & value", "cross_family": true }, { "answer_id": "THR-BRG-A-001", "score": 0.6630774736404419, "sibling_score": 0.6630774736404419, "answer_score": 0.4433147132396698, "sibling_qid": "KOC-2024-06-2049-Q006", "sibling_text": "thrust block arrangement how to check the clearance why is the clearance provided", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you check, measure, limit and adjust main-engine thrust bearing clearance?", "cross_family": true } ] }, { "qid": "MUM-2026-06-3481-Q010", "text": "⁠3 phase 3 wire system and 3 phase 4 wire system, why, where used and what are its advantage’s ?", "family": "Electrical - Distribution & MSB", "subtopic": "", "tid": "MUM-2026-06-3481", "tray": "review", "candidates": [ { "answer_id": "VOLT-SYS-003", "score": 0.7337955832481384, "sibling_score": 0.7337955832481384, "answer_score": 0.48924705386161804, "sibling_qid": "MUM-2026-02-1258-Q011", "sibling_text": "3 phase 3 wire system and 3 phase 4 wire system why where used and what are its advantage s", "sibling_family": "Electrical - Distribution & MSB", "via": "sibling", "answer_title": "Three-phase three-wire versus four-wire, and why ships use three-wire", "cross_family": false }, { "answer_id": "EARTH-NER-A-004", "score": 0.653045117855072, "sibling_score": 0.653045117855072, "answer_score": 0.5438688695430756, "sibling_qid": "MUM-2026-09-3983-Q015", "sibling_text": "3wire and 4 wire system", "sibling_family": "Electrical - Distribution & MSB", "via": "sibling", "answer_title": "Three-phase three-wire vs four-wire — and why the fourth wire", "cross_family": false }, { "answer_id": "SHORE-P01-003", "score": 0.4745742678642273, "sibling_score": null, "answer_score": 0.4745742678642273, "sibling_qid": "", "sibling_text": "ship versus shore electrical distribution insulated three wire and why ship lv main typically around440 v three phase three wire insulated neutral shore land three phase four wire solidly earthed neutral the fourth wire is the distributed neutral giving both three phase and single phase why insulated on ship continuity of supply a single earth fault does not interrupt essential services it is alar", "sibling_family": "", "via": "answer_title", "answer_title": "Ship versus shore electrical distribution — insulated three‑wire and why", "cross_family": false } ] }, { "qid": "MUM-2026-06-3482-Q001", "text": "EPL of main engine ?", "family": "Turbocharger", "subtopic": "Turbocharger Construction & Surging", "tid": "MUM-2026-06-3482", "tray": "new", "candidates": [ { "answer_id": "EEXI-005", "score": 0.5777935981750488, "sibling_score": 0.5777935981750488, "answer_score": 0.35629112422466275, "sibling_qid": "KOC-2025-11-1077-Q002", "sibling_text": "epl how it fitted in mcc engine and me engine", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "The Engine Power Limiter — how it is fitted on MC and ME engines, the setpoint, ShaPoLi, the records, and derating to meet EEXI", "cross_family": true }, { "answer_id": "CPP-POL-01", "score": 0.5157616138458252, "sibling_score": 0.5157616138458252, "answer_score": null, "sibling_qid": "MUM-2026-07-3767-Q014", "sibling_text": "main engine performance evaluation me engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Why and how is a main-engine performance test prepared, taken and assessed?", "cross_family": true }, { "answer_id": "ETP-344-P01-005", "score": 0.5043625831604004, "sibling_score": 0.5043625831604004, "answer_score": null, "sibling_qid": "MUM-2026-07-3817-Q001", "sibling_text": "main engine efficiency", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Engine efficiency — thermal, mechanical, overall", "cross_family": false } ] }, { "qid": "MUM-2026-06-3482-Q003", "text": "Why AE has 2 springs on valve?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE Concentric Spring", "tid": "MUM-2026-06-3482", "tray": "new", "candidates": [ { "answer_id": "EXHV-297-008", "score": 0.5857287645339966, "sibling_score": 0.5857287645339966, "answer_score": 0.39703730046749114, "sibling_qid": "MUM-2026-05-3155-Q009", "sibling_text": "ae exhaust valves have concentric springs what is the purpose of it", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "2-stroke vs 4-stroke exhaust valve operation; the AE conical spring", "cross_family": false }, { "answer_id": "EXHV-P01-002", "score": 0.47422701120376587, "sibling_score": 0.47422701120376587, "answer_score": 0.3893324285745621, "sibling_qid": "CHE-2021-07-0183-Q006", "sibling_text": "spring air pressure hw much what happens with air when oil pressure is applied to open exhaust valve it should restrict it s opening hw it s prevented asked by internal", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Air spring and soft closing", "cross_family": true }, { "answer_id": "AEFP-471-005", "score": 0.470062792301178, "sibling_score": 0.470062792301178, "answer_score": null, "sibling_qid": "KOL-2026-07-4270-Q003", "sibling_text": "ae delivery valve function why not delivery valve in main engine", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "What is the specific purpose of the AE fuel-pump delivery valve?", "cross_family": false } ] }, { "qid": "MUM-2026-06-3483-Q001", "text": "Intro", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "MUM-2026-06-3483", "tray": "new", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.421968549489975, "sibling_score": 0.421968549489975, "answer_score": null, "sibling_qid": "MUM-2026-05-3248-Q001", "sibling_text": "introduction sea time company pre sea ship type engine type me", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "STR-DEC-A-001", "score": 0.4078843891620636, "sibling_score": 0.4078843891620636, "answer_score": null, "sibling_qid": "MUM-2026-05-3192-Q008", "sibling_text": "type starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": true }, { "answer_id": "IMSP-002", "score": 0.407870888710022, "sibling_score": 0.407870888710022, "answer_score": null, "sibling_qid": "MUM-2025-11-1754-Q002", "sibling_text": "type starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What types of starter are used onboard? Name and explain the starting methods for a three-phase induction motor, including the soft starter.", "cross_family": true } ] }, { "qid": "MUM-2026-06-3484-Q004", "text": "reference anode position, work?", "family": "Electrical - ICCP & Cathodic Protection", "subtopic": "ICCP", "tid": "MUM-2026-06-3484", "tray": "review", "candidates": [ { "answer_id": "SCR-306-A-001", "score": 0.7619565725326538, "sibling_score": 0.7619565725326538, "answer_score": null, "sibling_qid": "MUM-2025-08-1577-Q003", "sibling_text": "refrence anode position", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "What an SCR is and how it works", "cross_family": false }, { "answer_id": "ICCP-P02-001", "score": 0.5534572601318359, "sibling_score": 0.5534572601318359, "answer_score": 0.36334787756204606, "sibling_qid": "KOC-2022-11-1206-Q006", "sibling_text": "iccp working what all anodes used why reference anode not consumed how potential difference is made", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP reference cell / reference electrode — purpose, material, location, selection", "cross_family": false }, { "answer_id": "ICCP-P02-002", "score": 0.5302427411079407, "sibling_score": 0.5302427411079407, "answer_score": 0.3517743319272995, "sibling_qid": "MUM-2026-06-3355-Q016", "sibling_text": "where exactly is iccp anodes fitted", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP drydock checks — anodes, shields, reference cells, bonding, hull", "cross_family": false } ] }, { "qid": "MUM-2026-06-3486-Q005", "text": "exi limits and categories?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Engine Derating", "tid": "MUM-2026-06-3486", "tray": "new", "candidates": [ { "answer_id": "BWM-D1D2-P03-001", "score": 0.5078655481338501, "sibling_score": 0.5078655481338501, "answer_score": null, "sibling_qid": "KOC-2024-08-0394-Q008", "sibling_text": "d2 all limits and regulations with values and name", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Regulation D-2 — ballast water performance / discharge standardHigh", "cross_family": true }, { "answer_id": "ENG-DERATE-003", "score": 0.5034922361373901, "sibling_score": 0.5034922361373901, "answer_score": null, "sibling_qid": "KOL-2017-03-1281-Q005", "sibling_text": "what were the limits", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What limits or restrictions apply after derating, and why is performance taken at ~80–85% MCR?", "cross_family": false }, { "answer_id": "SOX-LIMIT-001", "score": 0.48610568046569824, "sibling_score": 0.48610568046569824, "answer_score": null, "sibling_qid": "KOC-2024-10-0431-Q014", "sibling_text": "sox limits", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "MARPOL Annex VI sulphur limits — the 2020 global cap", "cross_family": true } ] }, { "qid": "MUM-2026-06-3489-Q005", "text": "Starter routine ?", "family": "Electrical - Motors & Starters", "subtopic": "Starter Maintenance / Inspection", "tid": "MUM-2026-06-3489", "tray": "new", "candidates": [ { "answer_id": "IMSP-004", "score": 0.5660502910614014, "sibling_score": 0.5660502910614014, "answer_score": null, "sibling_qid": "MUM-2026-01-1860-Q001S2", "sibling_text": "start dela starter components", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Explain the star-delta starter, and what you find inside it when you open it — its components.", "cross_family": false }, { "answer_id": "IMSP-002", "score": 0.5552577376365662, "sibling_score": 0.5552577376365662, "answer_score": null, "sibling_qid": "MUM-2025-11-1754-Q002", "sibling_text": "type starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What types of starter are used onboard? Name and explain the starting methods for a three-phase induction motor, including the soft starter.", "cross_family": false }, { "answer_id": "STR-DEC-A-001", "score": 0.5543724894523621, "sibling_score": 0.5543724894523621, "answer_score": null, "sibling_qid": "MUM-2026-05-3192-Q008", "sibling_text": "type starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false } ] }, { "qid": "MUM-2026-06-3490-Q001", "text": " Engine sailed ? Type of ship ?", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "MUM-2026-06-3490", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.83913654088974, "sibling_score": 0.83913654088974, "answer_score": null, "sibling_qid": "MUM-2026-06-3490-Q006", "sibling_text": "engine sailed type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.7745046019554138, "sibling_score": 0.7745046019554138, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q001", "sibling_text": "type of ship sailed and engines details", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7306379675865173, "sibling_score": 0.7306379675865173, "answer_score": null, "sibling_qid": "KOL-2025-12-2031-Q002", "sibling_text": "type of ship and engine sailed engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "MUM-2026-06-3490-Q002", "text": "So GI and GA what’s that and difference ?", "family": "NDT & Material Testing", "subtopic": "", "tid": "MUM-2026-06-3490", "tray": "new", "candidates": [ { "answer_id": "MEGI-304-002", "score": 0.5075436234474182, "sibling_score": 0.5075436234474182, "answer_score": 0.2435729593038559, "sibling_qid": "KOC-2025-07-1043-Q002", "sibling_text": "explain gi and ga engines", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "2. ME-GI / ME-GA / ME-G and recent dual-fuel engine advancements", "cross_family": true }, { "answer_id": "COT-P02-03", "score": 0.41866496205329895, "sibling_score": 0.41866496205329895, "answer_score": null, "sibling_qid": "KOL-2022-03-0609-Q001", "sibling_text": "difference between igg igs", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Compare a boiler-flue inert-gas system with a dedicated inert-gas generator and explain why suitable boiler flue gas—not main-engine exhaust—is normally used.", "cross_family": true }, { "answer_id": "IGC-IGF-001", "score": 0.4156329035758972, "sibling_score": 0.4156329035758972, "answer_score": 0.28808716535568235, "sibling_qid": "MUM-2026-03-2929-Q008", "sibling_text": "igc igf code diffrence", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "IGC Code vs IGF Code — what they are and the difference", "cross_family": true } ] }, { "qid": "MUM-2026-06-3490-Q003", "text": "Torsos ion damper working and types and construction ?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Vibration / Balancing", "tid": "MUM-2026-06-3490", "tray": "new", "candidates": [ { "answer_id": "VIB-BAL-B-001", "score": 0.6364344358444214, "sibling_score": 0.6364344358444214, "answer_score": 0.5195985078811646, "sibling_qid": "CHE-2026-04-0140-Q001S3", "sibling_text": "torsional damper working and construction", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Torsional / viscous vibration damper: working and condition checks", "cross_family": false }, { "answer_id": "VIB-BAL-A-006", "score": 0.4798981875181198, "sibling_score": null, "answer_score": 0.4798981875181198, "sibling_qid": "", "sibling_text": "vib a 06 types of vibration dampers and compensators and where they are located torsional vibration damper detuner crankshaft free fore end viscous silicone damper spring e g geislinger damper or tuning wheel detuner controls torsional vibration of the crankshaft and shafting construction detail dampers volume axial vibration damper crankshaft fore end oil damped piston collar and split housing fo", "sibling_family": "", "via": "answer_title", "answer_title": "VIB-A-06 — Types of vibration dampers and compensators, and where they are located", "cross_family": false }, { "answer_id": "GOV-082-P01-012", "score": 0.4472276926040649, "sibling_score": null, "answer_score": 0.4472276926040649, "sibling_qid": "", "sibling_text": "dashpot purpose construction and working purpose temporary droop damping to stop overshoot and hunting after a load change construction small piston in an oil cylinder with a restricting needle valve tied into the feedback", "sibling_family": "", "via": "answer_title", "answer_title": "Dashpot — purpose, construction and working", "cross_family": false } ] }, { "qid": "MUM-2026-06-3490-Q005", "text": "⁠steam lime pressure testing and check ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Temperature / Pressure / Level Sensor", "tid": "MUM-2026-06-3490", "tray": "new", "candidates": [ { "answer_id": "HYD-602-001", "score": 0.6207735538482666, "sibling_score": 0.6207735538482666, "answer_score": 0.46017709374427795, "sibling_qid": "KOC-2025-02-2060-Q007", "sibling_text": "boiler pressure test", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Explain the boiler hydraulic / hydrostatic pressure test in detail — the full procedure", "cross_family": true }, { "answer_id": "ACCT-583-A-001", "score": 0.6030136346817017, "sibling_score": 0.6030136346817017, "answer_score": null, "sibling_qid": "KOL-2020-01-3315-Q001", "sibling_text": "boiler accumulation of pressure testing", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Explain the boiler accumulation pressure test — what it is, its purpose, and how it is carried out (including when and at what interval)", "cross_family": true }, { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.6003937721252441, "sibling_score": 0.6003937721252441, "answer_score": 0.4678657025098801, "sibling_qid": "KOC-2021-05-1756-Q006", "sibling_text": "boiler accumulation pressure test", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": true } ] }, { "qid": "MUM-2026-06-3490-Q006", "text": "Engine sailed ? Type of ship ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-06-3490", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.83913654088974, "sibling_score": 0.83913654088974, "answer_score": null, "sibling_qid": "MUM-2026-06-3490-Q006", "sibling_text": "engine sailed type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.7745046019554138, "sibling_score": 0.7745046019554138, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q001", "sibling_text": "type of ship sailed and engines details", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7306379675865173, "sibling_score": 0.7306379675865173, "answer_score": null, "sibling_qid": "KOL-2025-12-2031-Q002", "sibling_text": "type of ship and engine sailed engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "MUM-2026-06-3490-Q013", "text": "⁠Trying out of funnel flap what to check?", "family": "2-Stroke - Operations & Casualty", "subtopic": "ER Round", "tid": "MUM-2026-06-3490", "tray": "new", "candidates": [ { "answer_id": "SMK-FUNL-BF01-004", "score": 0.6053895950317383, "sibling_score": 0.6053895950317383, "answer_score": null, "sibling_qid": "CHE-2026-04-0257-Q011", "sibling_text": "funnel found spark what you will check", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "There are sparks from the funnel on arrival in port — what is the reason and your action?", "cross_family": false }, { "answer_id": "CO2-SYS-003", "score": 0.5772961378097534, "sibling_score": 0.5772961378097534, "answer_score": null, "sibling_qid": "CHE-2026-04-0257-Q019", "sibling_text": "how will you confirm funnel flap sealed properly", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 system — use decisions, suitability and post-release checks", "cross_family": true }, { "answer_id": "QCV-003", "score": 0.535015344619751, "sibling_score": 0.535015344619751, "answer_score": null, "sibling_qid": "KOL-2017-08-0105-Q005", "sibling_text": "maintenance done on funnel flaps and vents during saturday routines when to test quickclosing valves regulation", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Quick closing valve — overhaul, maintenance and testing", "cross_family": true } ] }, { "qid": "MUM-2026-06-3492-Q001", "text": "Status of functions ?", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-06-3492", "tray": "new", "candidates": [ { "answer_id": "IMO-CODES-P03-002", "score": 0.5233471989631653, "sibling_score": 0.5233471989631653, "answer_score": null, "sibling_qid": "MUM-2026-03-0815-Q003", "sibling_text": "which function", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": true }, { "answer_id": "AVR-EXC-B-001", "score": 0.4956144094467163, "sibling_score": 0.4956144094467163, "answer_score": null, "sibling_qid": "KOC-2025-12-1676-Q004", "sibling_text": "explain status avr", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Explain the AVR working principle and control-loop operation.", "cross_family": true }, { "answer_id": "ANCH-C-006", "score": 0.4821634590625763, "sibling_score": 0.4821634590625763, "answer_score": null, "sibling_qid": "MUM-2026-06-3459-Q001", "sibling_text": "type of ship sail and status of other function", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false } ] }, { "qid": "MUM-2026-06-3492-Q006", "text": "Tell me about exhaust grouping?", "family": "2-Stroke - Exhaust, Valve & Starting Air", "subtopic": "Exhaust Manifold / Uptakes", "tid": "MUM-2026-06-3492", "tray": "new", "candidates": [ { "answer_id": "EXHV-297-007", "score": 0.550860583782196, "sibling_score": 0.550860583782196, "answer_score": null, "sibling_qid": "MUM-2026-06-3420-Q004", "sibling_text": "exhaust manifold especial arrangement for grouping of suction from each cylinder in me", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust manifold / gas receiver — construction, joints, inspection & temperature locations", "cross_family": false }, { "answer_id": "EXHV-P01-002", "score": 0.4743850827217102, "sibling_score": 0.4743850827217102, "answer_score": null, "sibling_qid": "KOL-2021-08-1615-Q001", "sibling_text": "exhaust vlv soft closing arrangements", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Air spring and soft closing", "cross_family": false }, { "answer_id": "EXHV-080-BF37-001", "score": 0.473632276058197, "sibling_score": 0.473632276058197, "answer_score": null, "sibling_qid": "KOL-2025-11-2025-Q005", "sibling_text": "variable exhaust closing", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "What is variable exhaust valve closing (VEC)? Components and advantages.", "cross_family": false } ] }, { "qid": "MUM-2026-06-3492-Q010", "text": "Tell me in details what will be those parameters ?", "family": "Refrigeration & AC", "subtopic": "Comfort Zone", "tid": "MUM-2026-06-3492", "tray": "new", "candidates": [ { "answer_id": "CABLE-INS-E-005", "score": 0.6161168813705444, "sibling_score": 0.6161168813705444, "answer_score": null, "sibling_qid": "KOL-2022-02-2540-Q007", "sibling_text": "what are all parameters", "sibling_family": "", "via": "sibling", "answer_title": "Cable properties, safety, standards and condition", "cross_family": false }, { "answer_id": "CTRL-TL-001", "score": 0.5183921456336975, "sibling_score": 0.5183921456336975, "answer_score": 0.3123847335577011, "sibling_qid": "MUM-2023-06-2175-Q006", "sibling_text": "tell me atleast 10 parameters of the controller", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "SIPART controller — what it is, and the parameters to know", "cross_family": true }, { "answer_id": "A6-NSEC-002", "score": 0.5145037174224854, "sibling_score": 0.5145037174224854, "answer_score": null, "sibling_qid": "KOL-2026-07-4262-Q008", "sibling_text": "nox parameters in which file we enter what need to be entered", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "NOx Technical Code vs NOx Technical File", "cross_family": true } ] }, { "qid": "MUM-2026-06-3493-Q001", "text": "Type of ship?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-06-3493", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8362351655960083, "sibling_score": 0.8362351655960083, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8017287850379944, "sibling_score": 0.8017287850379944, "answer_score": 0.5469861209392547, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8002189993858337, "sibling_score": 0.8002189993858337, "answer_score": 0.521619999408722, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2026-06-3493-Q002", "text": "Type of engine?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-06-3493", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.8008493185043335, "sibling_score": 0.8008493185043335, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.7932907342910767, "sibling_score": 0.7932907342910767, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-001", "score": 0.4524273335933685, "sibling_score": null, "answer_score": 0.4524273335933685, "sibling_qid": "", "sibling_text": "1 turbocharger type main engine vs generator engine compressor is centrifugal in both cases only the turbine type differs large slow speed main engine axial flow turbine single stage constant pressure system", "sibling_family": "", "via": "answer_title", "answer_title": "1. Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "MUM-2026-06-3493-Q003", "text": "Status of other function ?", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-06-3493", "tray": "new", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.5269899368286133, "sibling_score": 0.5269899368286133, "answer_score": null, "sibling_qid": "MUM-2026-05-3187-Q001", "sibling_text": "status of other orals and written", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": true }, { "answer_id": "IMO-CODES-P03-002", "score": 0.5163319706916809, "sibling_score": 0.5163319706916809, "answer_score": null, "sibling_qid": "MUM-2026-03-0815-Q003", "sibling_text": "which function", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": true }, { "answer_id": "AVR-EXC-B-001", "score": 0.5105002522468567, "sibling_score": 0.5105002522468567, "answer_score": null, "sibling_qid": "KOC-2025-12-1676-Q004", "sibling_text": "explain status avr", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Explain the AVR working principle and control-loop operation.", "cross_family": true } ] }, { "qid": "MUM-2026-06-3493-Q004", "text": "Exhaust Gas Recirculation, how it is connected to engine?", "family": "2-Stroke - Exhaust, Valve & Starting Air", "subtopic": "", "tid": "MUM-2026-06-3493", "tray": "review", "candidates": [ { "answer_id": "EXHV-297-007", "score": 0.6881296634674072, "sibling_score": 0.6881296634674072, "answer_score": 0.5178386449813842, "sibling_qid": "MUM-2026-05-3141-Q003", "sibling_text": "exhaust manifold how it is connected", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust manifold / gas receiver — construction, joints, inspection & temperature locations", "cross_family": false }, { "answer_id": "EXHV-080-BF37-001", "score": 0.6820886135101318, "sibling_score": 0.6820886135101318, "answer_score": null, "sibling_qid": "KOC-2026-08-2154-Q005", "sibling_text": "exhaust gas recirculation", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "What is variable exhaust valve closing (VEC)? Components and advantages.", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.5863927006721497, "sibling_score": 0.5863927006721497, "answer_score": null, "sibling_qid": "KOL-2025-07-3837-Q002", "sibling_text": "exhaust valve indicator mechanism", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false } ] }, { "qid": "MUM-2026-06-3493-Q006", "text": "Purpose of safety air(2 purpose) ?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Pump Overhaul", "tid": "MUM-2026-06-3493", "tray": "new", "candidates": [ { "answer_id": "ACSS-001", "score": 0.475003182888031, "sibling_score": 0.475003182888031, "answer_score": null, "sibling_qid": "MUM-2023-05-2728-Q007", "sibling_text": "main air comp sefty", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Main air-compressor safeties, alarms and trips", "cross_family": true }, { "answer_id": "EXHV-P01-002", "score": 0.4745931923389435, "sibling_score": 0.4745931923389435, "answer_score": null, "sibling_qid": "CHE-2025-10-0447-Q013", "sibling_text": "what is the safety given in exh valve air cyl", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Air spring and soft closing", "cross_family": true }, { "answer_id": "CO2-SYS-005", "score": 0.46517297625541687, "sibling_score": 0.46517297625541687, "answer_score": null, "sibling_qid": "KOC-2025-07-0629-Q006", "sibling_text": "safety on the co2 systum why busting disc is provided", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 system safeties, CO2-room requirements, alarms and ventilation", "cross_family": true } ] }, { "qid": "MUM-2026-06-3493-Q007", "text": "Hoop stress?", "family": "NDT & Material Testing", "subtopic": "", "tid": "MUM-2026-06-3493", "tray": "new", "candidates": [ { "answer_id": "STRSTR-298-009", "score": 0.5770192742347717, "sibling_score": 0.5770192742347717, "answer_score": 0.3672102183103561, "sibling_qid": "KOL-2021-04-1584-Q003", "sibling_text": "hook stress", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "What is Hooke’s law in stress-strain behaviour?", "cross_family": false }, { "answer_id": "STRSTR-298-003", "score": 0.5464736223220825, "sibling_score": 0.5464736223220825, "answer_score": null, "sibling_qid": "KOL-2025-03-1801-Q003", "sibling_text": "tensile stress why carried out information we get", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "How is a tensile test carried out, and what do UTM, UTS and the stress-strain curve give you?", "cross_family": false }, { "answer_id": "CREEP-FAT-P01-001", "score": 0.5404464602470398, "sibling_score": 0.5404464602470398, "answer_score": null, "sibling_qid": "KOC-2024-12-1021-Q015", "sibling_text": "creep stress", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "What is creep, and where does it occur in a marine engine?", "cross_family": false } ] }, { "qid": "MUM-2026-06-3494-Q002", "text": "⁠Types of strokes and nomenclature?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Engine Nomenclature", "tid": "MUM-2026-06-3494", "tray": "new", "candidates": [ { "answer_id": "SB-RATIO-001", "score": 0.5835514664649963, "sibling_score": 0.5835514664649963, "answer_score": null, "sibling_qid": "MUM-2025-10-2862-Q003", "sibling_text": "stroke length values of me", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What is the stroke-to-bore ratio? Its significance, its upper and lower values, and the ratio of your own engine", "cross_family": false }, { "answer_id": "SB-RATIO-002", "score": 0.5681204199790955, "sibling_score": 0.5681204199790955, "answer_score": null, "sibling_qid": "KOL-2020-02-1516-Q003", "sibling_text": "diff between s and l stroke why they need this development for", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Differentiate short, long, super-long and ultra-long stroke engines, with the exact ratio of each. What is S and what is L?", "cross_family": false }, { "answer_id": "SB-RATIO-006", "score": 0.5643930435180664, "sibling_score": 0.5643930435180664, "answer_score": null, "sibling_qid": "MUM-2023-11-1066-Q006", "sibling_text": "definition of superlong stroke", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Define super-long stroke. Why is the ratio limited to about 4.0 to 4.7, and what does the maker lose by going further?", "cross_family": false } ] }, { "qid": "MUM-2026-06-3494-Q011", "text": "⁠carbon percentage in CI and others ?", "family": "NDT & Material Testing", "subtopic": "Steel Grades for Ship", "tid": "MUM-2026-06-3494", "tray": "new", "candidates": [ { "answer_id": "CII-P01-001", "score": 0.5211232900619507, "sibling_score": 0.5211232900619507, "answer_score": null, "sibling_qid": "MUM-2026-07-3752-Q002", "sibling_text": "what is cii carbon intensity indicator", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is CII and what is its purpose?", "cross_family": true }, { "answer_id": "CII-CALC-P03-001", "score": 0.5129884481430054, "sibling_score": 0.5129884481430054, "answer_score": 0.4274995058774948, "sibling_qid": "CHE-2025-08-0426-Q001", "sibling_text": "cii what it is for how the co2 is calculated in detail", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Calculating attained & required CII — formula, unit, reduction factor, measurements", "cross_family": true }, { "answer_id": "ICD-065-001", "score": 0.48188793659210205, "sibling_score": 0.48188793659210205, "answer_score": null, "sibling_qid": "MUM-2026-06-3356-Q001", "sibling_text": "iron carbide diagram draw percentage of carbon in ferrite austenite perlite etc etc", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Draw and explain the iron-carbon diagram in full detail", "cross_family": false } ] }, { "qid": "MUM-2026-06-3494-Q012", "text": "⁠boiler safety valve type you had and explain ?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2026-06-3494", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.7624728679656982, "sibling_score": 0.7624728679656982, "answer_score": null, "sibling_qid": "MUM-2026-07-3737-Q004", "sibling_text": "boiler type safety valve type lift of safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACRV-005", "score": 0.723822295665741, "sibling_score": 0.723822295665741, "answer_score": 0.5024522066116333, "sibling_qid": "MUM-2026-06-3357-Q006", "sibling_text": "safety valve boiler types and construction boiler water", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.7156098484992981, "sibling_score": 0.7156098484992981, "answer_score": null, "sibling_qid": "MUM-2026-05-3289-Q007", "sibling_text": "boiler type make and rating and setting of safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false } ] }, { "qid": "MUM-2026-06-3495-Q003", "text": "Tumblehome?", "family": "SOLAS", "subtopic": "Tumblehome / Hull Form", "tid": "MUM-2026-06-3495", "tray": "new", "candidates": [ { "answer_id": "KEEL-FRM-B-003", "score": 0.6163340210914612, "sibling_score": 0.6163340210914612, "answer_score": null, "sibling_qid": "KOC-2025-10-0670-Q007", "sibling_text": "tumble home", "sibling_family": "", "via": "sibling", "answer_title": "Rise of floor, camber, deadrise & hull-form terms", "cross_family": false }, { "answer_id": "SHELL-PLT-A-002", "score": 0.615462601184845, "sibling_score": 0.615462601184845, "answer_score": null, "sibling_qid": "KOL-2025-09-1083-Q008", "sibling_text": "tumble home", "sibling_family": "", "via": "sibling", "answer_title": "Shell plating, strakes, and the named strakes", "cross_family": false }, { "answer_id": "SHELL-PLT-B-001", "score": 0.5161348581314087, "sibling_score": 0.5161348581314087, "answer_score": null, "sibling_qid": "KOL-2019-08-0316-Q003", "sibling_text": "shear strake tumble home", "sibling_family": "", "via": "sibling", "answer_title": "Sheer strake — location, why strengthened, deck-edge / gunwale connection", "cross_family": false } ] }, { "qid": "MUM-2026-06-3495-Q007", "text": "SOLAS CHAPTER 8 ?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Solas Pack A / B", "tid": "MUM-2026-06-3495", "tray": "review", "candidates": [ { "answer_id": "SOLAS-OVW-009", "score": 0.6734012365341187, "sibling_score": 0.6734012365341187, "answer_score": null, "sibling_qid": "MUM-2026-06-3562-Q003", "sibling_text": "solas chapter 8", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "SOLAS Chapter IX — ISM Code (safe operation)", "cross_family": true }, { "answer_id": "SOLAS-CH-015", "score": 0.6033909320831299, "sibling_score": 0.6033909320831299, "answer_score": 0.3406508594751358, "sibling_qid": "MUM-2026-02-0752-Q007", "sibling_text": "solas all chapters 8 3 4 more", "sibling_family": "SOLAS - General (HOLD)", "via": "sibling", "answer_title": "SOLAS chapters overview - current count and scope", "cross_family": true }, { "answer_id": "SOLAS-OVW-008", "score": 0.5947190523147583, "sibling_score": 0.5947190523147583, "answer_score": null, "sibling_qid": "MUM-2026-04-0915-Q004", "sibling_text": "solas chapter 7 8", "sibling_family": "SOLAS - General (HOLD)", "via": "sibling", "answer_title": "SOLAS Chapter VII — carriage of dangerous goods", "cross_family": true } ] }, { "qid": "MUM-2026-06-3496-Q001", "text": "Type of Ship have you done and what size?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-06-3496", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.7088252305984497, "sibling_score": 0.7088252305984497, "answer_score": null, "sibling_qid": "MUM-2026-02-1280-Q001", "sibling_text": "type of ship done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.6465014815330505, "sibling_score": 0.6465014815330505, "answer_score": 0.4632568538188934, "sibling_qid": "KOC-2026-09-2198-Q001", "sibling_text": "type a and b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.6446327567100525, "sibling_score": 0.6446327567100525, "answer_score": null, "sibling_qid": "MUM-2026-09-3942-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false } ] }, { "qid": "MUM-2026-06-3497-Q006", "text": "Tumblehome ?", "family": "SOLAS", "subtopic": "Tumblehome / Hull Form", "tid": "MUM-2026-06-3497", "tray": "new", "candidates": [ { "answer_id": "KEEL-FRM-B-003", "score": 0.6168626546859741, "sibling_score": 0.6168626546859741, "answer_score": null, "sibling_qid": "KOC-2025-10-0670-Q007", "sibling_text": "tumble home", "sibling_family": "", "via": "sibling", "answer_title": "Rise of floor, camber, deadrise & hull-form terms", "cross_family": false }, { "answer_id": "SHELL-PLT-A-002", "score": 0.6159869432449341, "sibling_score": 0.6159869432449341, "answer_score": null, "sibling_qid": "KOL-2025-09-1083-Q008", "sibling_text": "tumble home", "sibling_family": "", "via": "sibling", "answer_title": "Shell plating, strakes, and the named strakes", "cross_family": false }, { "answer_id": "SHELL-PLT-B-001", "score": 0.5168530941009521, "sibling_score": 0.5168530941009521, "answer_score": null, "sibling_qid": "KOL-2019-08-0316-Q003", "sibling_text": "shear strake tumble home", "sibling_family": "", "via": "sibling", "answer_title": "Sheer strake — location, why strengthened, deck-edge / gunwale connection", "cross_family": false } ] }, { "qid": "MUM-2026-06-3497-Q009", "text": "Number of draft markings on ship?", "family": "Other Conventions", "subtopic": "IMDG Code", "tid": "MUM-2026-06-3497", "tray": "new", "candidates": [ { "answer_id": "LL-CONV-P06-002", "score": 0.6153947114944458, "sibling_score": 0.6153947114944458, "answer_score": null, "sibling_qid": "KOC-2024-03-0321-Q017", "sibling_text": "loadline markings summer loadline winter loadline freshwater line why it s there draft level increase decrease with respect to loadline markings", "sibling_family": "", "via": "sibling", "answer_title": "LLC-P06-02 - Types of load lines: standard, seasonal, timber, WNA and multiple load lines", "cross_family": false }, { "answer_id": "LLC-P05-001", "score": 0.6042200326919556, "sibling_score": 0.6042200326919556, "answer_score": null, "sibling_qid": "KOL-2022-09-0675-Q005", "sibling_text": "locations of draft markings", "sibling_family": "", "via": "sibling", "answer_title": "Freeboard, deck line, Plimsoll mark, assignment and scantling draft", "cross_family": false }, { "answer_id": "IMDG-011", "score": 0.5448686480522156, "sibling_score": 0.5448686480522156, "answer_score": null, "sibling_qid": "MUM-2025-11-0556-Q017", "sibling_text": "what symbols markings used for imdg cargoes on deck", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What symbols and markings are used for IMDG cargoes on deck?", "cross_family": false } ] }, { "qid": "MUM-2026-06-3498-Q002", "text": "SOLAS training manual location and content?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "LSA Code", "tid": "MUM-2026-06-3498", "tray": "review", "candidates": [ { "answer_id": "FIRE-P05-01", "score": 0.7302157878875732, "sibling_score": 0.7302157878875732, "answer_score": 0.49159537851810453, "sibling_qid": "MUM-2026-09-3971-Q008", "sibling_text": "solas training manual contents", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Fire-safety training manual — SOLAS II-2 Reg 15 contents and location", "cross_family": true }, { "answer_id": "LSA-CODE-003", "score": 0.5719789862632751, "sibling_score": 0.5719789862632751, "answer_score": 0.4182266607880592, "sibling_qid": "MUM-2023-03-0096-Q007", "sibling_text": "what s the difference between the instructions in lsa and training manual main difference as per solas", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "LSA Code instructions versus the ship’s training manual — the SOLAS distinction", "cross_family": false }, { "answer_id": "FSS-CODE-004", "score": 0.3965668350458145, "sibling_score": null, "answer_score": 0.3965668350458145, "sibling_qid": "", "sibling_text": "where do you find fire fighting requirements and equipment maintenance procedures and how would you learn the fss code has changed requirements and system specs fss code systems solas ii 2 requirements the statutory source on board maker s manuals fire safety training manual ii 2 reg 15 fire safety operational booklet fire control plan muster list", "sibling_family": "", "via": "answer_title", "answer_title": "Where do you find fire-fighting requirements and equipment-maintenance procedures, and how would you learn the FSS Code has changed?", "cross_family": false } ] }, { "qid": "MUM-2026-06-3498-Q003", "text": "Type of ship ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-06-3498", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8364350199699402, "sibling_score": 0.8364350199699402, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8018133640289307, "sibling_score": 0.8018133640289307, "answer_score": 0.5471183538436889, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8004558682441711, "sibling_score": 0.8004558682441711, "answer_score": 0.5215972006320954, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2026-06-3499-Q001", "text": "Type of ship ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-06-3499", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8364351391792297, "sibling_score": 0.8364351391792297, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8018133640289307, "sibling_score": 0.8018133640289307, "answer_score": 0.5471183538436889, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8004559874534607, "sibling_score": 0.8004559874534607, "answer_score": 0.5215973019599914, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2026-06-3499-Q003", "text": "Ship Type 1 requirement ?", "family": "Cargo Ops - Tankers", "subtopic": "Chemical Tanker Code (BCH/IBC)", "tid": "MUM-2026-06-3499", "tray": "new", "candidates": [ { "answer_id": "LLST-AB-001", "score": 0.5651943683624268, "sibling_score": 0.5651943683624268, "answer_score": 0.4002309024333954, "sibling_qid": "KOC-2026-09-2168-Q003", "sibling_text": "type a and type b ship", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "IBC-BCH-B-005", "score": 0.5309471487998962, "sibling_score": 0.5309471487998962, "answer_score": null, "sibling_qid": "CHE-2026-02-0108-Q010", "sibling_text": "constructional requirement for type 1 2 3 chemical tankers", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Type 1, 2 and 3 chemical tankers — construction and tank location", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.5270072221755981, "sibling_score": 0.5270072221755981, "answer_score": null, "sibling_qid": "MUM-2026-03-0813-Q001", "sibling_text": "type of ship why only one function", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": true } ] }, { "qid": "MUM-2026-06-3499-Q005", "text": "Dry dock requirement ?", "family": "Drydock & Underwater Surveys", "subtopic": "DD Preparation / Plans", "tid": "MUM-2026-06-3499", "tray": "review", "candidates": [ { "answer_id": "DDHSC-005", "score": 0.7885589003562927, "sibling_score": 0.7885589003562927, "answer_score": 0.5053181648254395, "sibling_qid": "MUM-2025-08-0412-Q005", "sibling_text": "dry dock requirment", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "What are the rules, regulations and clearances governing drydocking?", "cross_family": false }, { "answer_id": "DUS-P3-01", "score": 0.7572715282440186, "sibling_score": 0.7572715282440186, "answer_score": null, "sibling_qid": "KOC-2026-02-0798-Q014", "sibling_text": "dry doc preparation why dry dock required", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Why do we drydock a ship — the purpose, and at what interval?", "cross_family": false }, { "answer_id": "DUS-P2-06", "score": 0.7263268232345581, "sibling_score": 0.7263268232345581, "answer_score": 0.5543620824813843, "sibling_qid": "KOL-2019-06-0289-Q005", "sibling_text": "conditions for afloat drydock", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Conditions for floating (afloat) drydock and ‘drydock afloat check’", "cross_family": false } ] }, { "qid": "MUM-2026-06-3499-Q006", "text": "MLC COFS owner liability ?", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2026-06-3499", "tray": "new", "candidates": [ { "answer_id": "CLC-CIV-B-003", "score": 0.5463700890541077, "sibling_score": 0.5463700890541077, "answer_score": null, "sibling_qid": "MUM-2026-04-0880-Q004", "sibling_text": "mlc what is shipowner liability", "sibling_family": "MLC", "via": "sibling", "answer_title": "LLMC: purpose, scope and limitation of maritime claims", "cross_family": false }, { "answer_id": "MLC-WRH-B-009", "score": 0.41724488139152527, "sibling_score": 0.41724488139152527, "answer_score": null, "sibling_qid": "CHE-2026-05-0608-Q012", "sibling_text": "ship owner abandoned the ship what will you do as per mlc i told financial security certificate for repartation", "sibling_family": "MLC", "via": "sibling", "answer_title": "Abandonment — financial security and repatriation", "cross_family": false }, { "answer_id": "MLC-WRH-B-007", "score": 0.39685890078544617, "sibling_score": 0.39685890078544617, "answer_score": null, "sibling_qid": "MUM-2026-07-3757-Q003", "sibling_text": "mlc detainable deficiencies", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false } ] }, { "qid": "MUM-2026-06-3500-Q003", "text": "How FIVA works ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Safematic", "tid": "MUM-2026-06-3500", "tray": "new", "candidates": [ { "answer_id": "FIVA-220-001", "score": 0.5041288137435913, "sibling_score": 0.5041288137435913, "answer_score": 0.31235468983650205, "sibling_qid": "MUM-2025-12-1234-Q003", "sibling_text": "explain fiva function", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "FIVA valve — construction, function and basic operation", "cross_family": true }, { "answer_id": "FIVA-220-002", "score": 0.4787970781326294, "sibling_score": 0.4787970781326294, "answer_score": 0.31603621095418927, "sibling_qid": "CHE-2026-03-0252-Q002S2", "sibling_text": "how fiva and elfi operates", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "FIVA control of fuel injection — timing, quantity and actuation", "cross_family": true }, { "answer_id": "FIVA-220-003", "score": 0.3839413523674011, "sibling_score": 0.3839413523674011, "answer_score": 0.28698238730430603, "sibling_qid": "MUM-2026-05-3217-Q015", "sibling_text": "many cross question on fiva", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "FIVA control signal, controller type, voice-coil drive and fail-safe behaviour", "cross_family": true } ] }, { "qid": "MUM-2026-06-3501-Q003", "text": "Checks with ULSFO burning engine ?", "family": "OTHER TOPICS", "subtopic": "", "tid": "MUM-2026-06-3501", "tray": "new", "candidates": [ { "answer_id": "BFM-330-001", "score": 0.5276260375976562, "sibling_score": 0.5276260375976562, "answer_score": null, "sibling_qid": "CHE-2026-04-0506-Q001", "sibling_text": "boiler not burning checks", "sibling_family": "Boilers - Burner & Combustion Control", "via": "sibling", "answer_title": "Boiler flame failure or burner not firing — troubleshooting", "cross_family": true }, { "answer_id": "BUNK-PLAN-001", "score": 0.5004327893257141, "sibling_score": 0.5004327893257141, "answer_score": null, "sibling_qid": "KOL-2020-10-0431-Q005", "sibling_text": "checks as 2 e during bunkering", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Second Engineer's duties, preparation and checks for bunkering", "cross_family": true }, { "answer_id": "EXHV-P03-002", "score": 0.4909934103488922, "sibling_score": 0.4909934103488922, "answer_score": null, "sibling_qid": "KOL-2021-07-3432-Q006", "sibling_text": "after burning in me detection as 2nd engg wat all to check and how", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Leaking exhaust valve — indications, the draw card, and immediate action", "cross_family": true } ] }, { "qid": "MUM-2026-06-3502-Q001", "text": "Checks on line when using ULSFO ?", "family": "OTHER TOPICS", "subtopic": "", "tid": "MUM-2026-06-3502", "tray": "new", "candidates": [ { "answer_id": "CYL-LINER-P03-007", "score": 0.5622283220291138, "sibling_score": 0.5622283220291138, "answer_score": null, "sibling_qid": "KOL-2019-11-3289-Q003", "sibling_text": "checks on liner", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Cylinder liner checks at overhaul, decarb and under-piston inspection", "cross_family": true }, { "answer_id": "LLC-SURV-P02-001", "score": 0.5018891096115112, "sibling_score": 0.5018891096115112, "answer_score": null, "sibling_qid": "KOL-2024-04-3682-Q001", "sibling_text": "checks in loadline survey", "sibling_family": "", "via": "sibling", "answer_title": "1. Load line survey preparation: readiness, weather-tight checks and attendance", "cross_family": false }, { "answer_id": "LLC-SURV-P01-001", "score": 0.4713391065597534, "sibling_score": 0.4713391065597534, "answer_score": null, "sibling_qid": "KOL-2019-07-0296-Q005", "sibling_text": "loadline survey checks as 2 e", "sibling_family": "", "via": "sibling", "answer_title": "Load line survey preparation as Second Engineer: engine-room scope, machinery openings, tanks/vents, valves and overboard checks", "cross_family": false } ] }, { "qid": "MUM-2026-06-3502-Q002", "text": "Pre tensioning ?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Tie Rod / Tie Bolt", "tid": "MUM-2026-06-3502", "tray": "review", "candidates": [ { "answer_id": "PRE-TEN-001", "score": 0.6523172855377197, "sibling_score": 0.6523172855377197, "answer_score": 0.4801886439323425, "sibling_qid": "MUM-2026-06-3420-Q003", "sibling_text": "tie bolt pre tensioned or pre compressed what do u understand by pre tensioning and pre stressing", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Pre-stressing and pre-tensioning in main-engine bolting", "cross_family": false }, { "answer_id": "TBR-TT-P02-001", "score": 0.6233550906181335, "sibling_score": 0.6233550906181335, "answer_score": 0.40806012898683547, "sibling_qid": "MUM-2026-02-2580-Q013", "sibling_text": "how to apply pretensioning in tool", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Tie rod tightening / hydraulic tensioning procedure", "cross_family": false }, { "answer_id": "TR-TB-PA-003", "score": 0.605113685131073, "sibling_score": 0.605113685131073, "answer_score": 0.4925614386796951, "sibling_qid": "MUM-2026-05-3274-Q002", "sibling_text": "pre tensioning of tie rod why pre tensioning", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Why tie rods are pre-tensioned (pre-stressed) and what it means", "cross_family": false } ] }, { "qid": "MUM-2026-06-3502-Q006", "text": "Regulation for having OMD (minimum capacity of engine) ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "OMD / Oil Mist Detector", "tid": "MUM-2026-06-3502", "tray": "new", "candidates": [ { "answer_id": "OMD-004", "score": 0.5901735424995422, "sibling_score": 0.5901735424995422, "answer_score": 0.48815048336982725, "sibling_qid": "KOC-2025-01-0524-Q006", "sibling_text": "omd requirements", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What are the OMD requirements? Why is an OMD fitted on the main engine and not the auxiliary, and can the two be interchanged?", "cross_family": false }, { "answer_id": "MCC-MEB-P01-001", "score": 0.564168393611908, "sibling_score": 0.564168393611908, "answer_score": null, "sibling_qid": "KOC-2026-03-1113-Q003", "sibling_text": "compact engine requirements", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "MC-C (\"Compact\") engine — design and the main constructional differences from MC", "cross_family": true }, { "answer_id": "CSBR-005", "score": 0.5169785022735596, "sibling_score": 0.5169785022735596, "answer_score": null, "sibling_qid": "CHE-2026-02-0333-Q021", "sibling_text": "me spec explain a what is the minimum rpm me can run b how fuel supplied in minimum rpm c critical rpm d barred speed range", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "CSBR-009 — Minimum / low-RPM running limits and precautions", "cross_family": true } ] }, { "qid": "MUM-2026-06-3503-Q002", "text": "Synthetic lubricant ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Synthetic Lube", "tid": "MUM-2026-06-3503", "tray": "review", "candidates": [ { "answer_id": "LO-TEST-P01-005", "score": 0.7286842465400696, "sibling_score": 0.7286842465400696, "answer_score": null, "sibling_qid": "MUM-2026-09-3999-Q004", "sibling_text": "synthetic and mineral lube oil", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Lube-oil properties, types and selection by duty", "cross_family": false }, { "answer_id": "SYN-LUBE-001", "score": 0.6992771029472351, "sibling_score": 0.6992771029472351, "answer_score": 0.5383692979812622, "sibling_qid": "MUM-2026-03-1294-Q011", "sibling_text": "what are synthetic lubricants how are they different from normal lubricant", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "SL-001 – What synthetic lube oil is, how it is made, and its base stocks", "cross_family": false }, { "answer_id": "SYN-LUBE-002", "score": 0.6828872561454773, "sibling_score": 0.6828872561454773, "answer_score": null, "sibling_qid": "KOL-2023-08-3631-Q007", "sibling_text": "synthetic oil and properties external", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "SL-002 – Composition, properties, and advantages over mineral oil", "cross_family": false } ] }, { "qid": "MUM-2026-06-3504-Q001", "text": "Status of other functions?", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-06-3504", "tray": "new", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.5268856883049011, "sibling_score": 0.5268856883049011, "answer_score": null, "sibling_qid": "MUM-2026-05-3187-Q001", "sibling_text": "status of other orals and written", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": true }, { "answer_id": "IMO-CODES-P03-002", "score": 0.5128918886184692, "sibling_score": 0.5128918886184692, "answer_score": null, "sibling_qid": "MUM-2026-03-0815-Q003", "sibling_text": "which function", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": true }, { "answer_id": "AVR-EXC-B-001", "score": 0.5099712610244751, "sibling_score": 0.5099712610244751, "answer_score": null, "sibling_qid": "KOC-2025-12-1676-Q004", "sibling_text": "explain status avr", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Explain the AVR working principle and control-loop operation.", "cross_family": true } ] }, { "qid": "MUM-2026-06-3504-Q002", "text": "Type of engine ?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-06-3504", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.8005982041358948, "sibling_score": 0.8005982041358948, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.7929896116256714, "sibling_score": 0.7929896116256714, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-001", "score": 0.4524542361497879, "sibling_score": null, "answer_score": 0.4524542361497879, "sibling_qid": "", "sibling_text": "1 turbocharger type main engine vs generator engine compressor is centrifugal in both cases only the turbine type differs large slow speed main engine axial flow turbine single stage constant pressure system", "sibling_family": "", "via": "answer_title", "answer_title": "1. Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "MUM-2026-06-3504-Q005", "text": "Function of volute and diffuser?", "family": "Pumps - Centrifugal & PD", "subtopic": "Centrifugal Pump", "tid": "MUM-2026-06-3504", "tray": "new", "candidates": [ { "answer_id": "PUMP-CAS-001", "score": 0.5124340653419495, "sibling_score": 0.5124340653419495, "answer_score": 0.3548322558403015, "sibling_qid": "KOL-2018-08-1400-Q008", "sibling_text": "diffuser in pump detail and function", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "01. Function of the volute casing in a centrifugal pump — and what replaces it if there is no volute", "cross_family": false }, { "answer_id": "TCS-059-P04-002", "score": 0.4328013062477112, "sibling_score": 0.4328013062477112, "answer_score": null, "sibling_qid": "KOL-2024-06-1782-Q003", "sibling_text": "t c diffuser inducer blower and labyrinth seal function", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Air-side components: inducer, impeller, diffuser", "cross_family": true }, { "answer_id": "VIT-MECH-A-002", "score": 0.4163264036178589, "sibling_score": 0.4163264036178589, "answer_score": null, "sibling_qid": "KOL-2024-07-1949-Q002", "sibling_text": "vit function", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How VIT works — varying the start of injection on the fuel pump", "cross_family": true } ] }, { "qid": "MUM-2026-06-3504-Q006", "text": "Indicator diagram expansion stroke line little above normal, reasons?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Indicator Card / Power Card", "tid": "MUM-2026-06-3504", "tray": "new", "candidates": [ { "answer_id": "IND-CARD-A-001", "score": 0.5832204222679138, "sibling_score": 0.5832204222679138, "answer_score": 0.33332974165678025, "sibling_qid": "KOC-2021-05-2022-Q019", "sibling_text": "indicator diagrams draw and explain", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Reading the power / draw card — what it tells you", "cross_family": false }, { "answer_id": "IND-CARD-B-005", "score": 0.5811618566513062, "sibling_score": 0.5811618566513062, "answer_score": null, "sibling_qid": "KOL-2025-06-1981-Q001", "sibling_text": "draw card compression and peak pressure normal but expansion line is high reason internal sk das ext rk paul", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Interpreting Pmax, Pcomp and compression / expansion-line abnormalities", "cross_family": false }, { "answer_id": "SB-RATIO-004", "score": 0.5444347262382507, "sibling_score": 0.5444347262382507, "answer_score": null, "sibling_qid": "KOC-2025-09-1053-Q006", "sibling_text": "why the stroke length is increased", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Why is the stroke length increased? Its effect on the ship, which stroke creates more power, and two engines at the same rpm", "cross_family": false } ] }, { "qid": "MUM-2026-06-3504-Q013", "text": "Exhaust temperature, Pmax etc all ok but P comp is less, reasons, plenty cross questions?", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2026-06-3504", "tray": "review", "candidates": [ { "answer_id": "EXH-T-HI-005", "score": 0.76762855052948, "sibling_score": 0.76762855052948, "answer_score": 0.6401949167251587, "sibling_qid": "KOL-2023-02-4019-Q003", "sibling_text": "in a draw card taken pmax and pcomp are good but exhaust line is high reasons", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Exhaust line high with Pmax and Pcomp normal — probable causes", "cross_family": true }, { "answer_id": "IND-CARD-B-005", "score": 0.7593046426773071, "sibling_score": 0.7593046426773071, "answer_score": 0.6079686939716339, "sibling_qid": "KOL-2026-04-2056-Q002", "sibling_text": "all units pcomp pmax are okay one units exhaust line is higher in draw card reasons", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Interpreting Pmax, Pcomp and compression / expansion-line abnormalities", "cross_family": true }, { "answer_id": "IND-CARD-006", "score": 0.7457547187805176, "sibling_score": 0.7457547187805176, "answer_score": 0.5910522043704987, "sibling_qid": "MUM-2024-11-0966-Q006", "sibling_text": "n what happened to exhaust temperature n pcomp", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Interpreting Pmax, Pcomp and exhaust-temperature changes for timing and combustion", "cross_family": true } ] }, { "qid": "MUM-2026-06-3504-Q014", "text": "How to do emergency manoeuvring if both ECUs not functioning and no spare onboard?", "family": "2-Stroke - Electronic Control", "subtopic": "", "tid": "MUM-2026-06-3504", "tray": "new", "candidates": [ { "answer_id": "EICU-MAN-P01-002", "score": 0.5887632369995117, "sibling_score": 0.5887632369995117, "answer_score": null, "sibling_qid": "KOC-2023-07-0982-Q001", "sibling_text": "me engine manuovering cross in case of eicu fail how to operate", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "ME / ME-C / ME-B manoeuvring system — diagram and explanation", "cross_family": true }, { "answer_id": "EICU-MAN-P01-004", "score": 0.5587959289550781, "sibling_score": 0.5587959289550781, "answer_score": null, "sibling_qid": "MUM-2025-02-0967-Q012", "sibling_text": "if both ecu not working what will you do", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Control-unit failure — CCU / ECU / EICU: can you still run the engine?", "cross_family": true }, { "answer_id": "EICU-MAN-P01-003", "score": 0.5453900694847107, "sibling_score": 0.5453900694847107, "answer_score": 0.4398561894893646, "sibling_qid": "MUM-2026-01-2912-Q003", "sibling_text": "emergency manoeuring for me", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Main-engine manoeuvring sequence and emergency manoeuvring", "cross_family": true } ] }, { "qid": "MUM-2026-06-3505-Q001", "text": "Type of ship ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-06-3505", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8364351391792297, "sibling_score": 0.8364351391792297, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8018133640289307, "sibling_score": 0.8018133640289307, "answer_score": 0.5471183538436889, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8004559874534607, "sibling_score": 0.8004559874534607, "answer_score": 0.5215973019599914, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2026-06-3506-Q001", "text": "How dual fuel ships are managing are they taking boil off or forced vapour ?", "family": "Cargo Ops - Gas Carriers", "subtopic": "", "tid": "MUM-2026-06-3506", "tray": "new", "candidates": [ { "answer_id": "EECS-002", "score": 0.5706941485404968, "sibling_score": 0.5706941485404968, "answer_score": null, "sibling_qid": "MUM-2025-09-2830-Q001", "sibling_text": "ext mudit mehrotra internal shirish type of ship sailed on function safety how dual fuel ships are managing are they taking boil off or forced vapour cii and eexi difference frequency of calculation of cii and eexi amonia as a fuel in future what will be the used for imos greenhouse what will be the limitations air lubrication lifeboat 5 yearly test dynamic and static detailed explanation function mep", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "02. Differentiate EEXI and CII", "cross_family": true }, { "answer_id": "BLEVE-BOG-004", "score": 0.5689694881439209, "sibling_score": 0.5689694881439209, "answer_score": null, "sibling_qid": "KOL-2026-09-4311-Q002", "sibling_text": "you are on lng you know what is bog how we control bog vapour header pressure control ways i was saying what is pressure generated in tanks where you use on ship mostly", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "How are LNG boil-off, tank pressure and cargo temperature controlled?", "cross_family": false }, { "answer_id": "DFUEL-566-001", "score": 0.5599517226219177, "sibling_score": 0.5599517226219177, "answer_score": 0.4558759272098541, "sibling_qid": "MUM-2024-06-2230-Q002", "sibling_text": "which fuels used in dual fuel", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "How does a dual-fuel engine use gas fuel with pilot fuel injection — and can it run on both liquid and gas?", "cross_family": false } ] }, { "qid": "MUM-2026-06-3506-Q003", "text": "Frequency of calculation of CII AND EEXI ?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "EEXI", "tid": "MUM-2026-06-3506", "tray": "new", "candidates": [ { "answer_id": "EECS-003", "score": 0.6289386749267578, "sibling_score": 0.6289386749267578, "answer_score": 0.3868330240249634, "sibling_qid": "MUM-2022-11-0065-Q011", "sibling_text": "calculations for eexi and cii", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "03. Explain EEXI and CII, including how each is calculated", "cross_family": false }, { "answer_id": "CII-CALC-P03-001", "score": 0.6004998087882996, "sibling_score": 0.6004998087882996, "answer_score": null, "sibling_qid": "MUM-2022-09-0046-Q010", "sibling_text": "how aften cii is calculated", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Calculating attained & required CII — formula, unit, reduction factor, measurements", "cross_family": false }, { "answer_id": "EECS-002", "score": 0.5555903911590576, "sibling_score": 0.5555903911590576, "answer_score": 0.37194651216268537, "sibling_qid": "MUM-2024-02-0158-Q007", "sibling_text": "eexi cii and its calculation", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "02. Differentiate EEXI and CII", "cross_family": false } ] }, { "qid": "MUM-2026-06-3507-Q003", "text": "Tank scope ?", "family": "Gas Detection & Instruments", "subtopic": "Explosimeter / Gas Detector", "tid": "MUM-2026-06-3507", "tray": "new", "candidates": [ { "answer_id": "GAS-DET-005", "score": 0.5636129975318909, "sibling_score": 0.5636129975318909, "answer_score": 0.3293913796544075, "sibling_qid": "MUM-2025-08-0373-Q003", "sibling_text": "tankscope", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Tankscope: purpose, working, when to use, gases measured", "cross_family": true }, { "answer_id": "MARVS-TANK-003", "score": 0.5392982363700867, "sibling_score": 0.5392982363700867, "answer_score": null, "sibling_qid": "MUM-2023-06-0104-Q019", "sibling_text": "how tank supported", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "How is the cargo tank supported? (Including Moss spherical tank supports)", "cross_family": true }, { "answer_id": "GAS-DET-006", "score": 0.5288107395172119, "sibling_score": 0.5288107395172119, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q006", "sibling_text": "tank scope and explosive meter why used explosive meter if tank scope is there", "sibling_family": "Gas Detection & Instruments", "via": "sibling", "answer_title": "Tankscope vs explosimeter: construction, working, where to use, gases", "cross_family": false } ] }, { "qid": "MUM-2026-06-3507-Q004", "text": "LRIT and AIS question ?", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "MUM-2026-06-3507", "tray": "new", "candidates": [ { "answer_id": "EPIRB-SART-002", "score": 0.39883530139923096, "sibling_score": 0.39883530139923096, "answer_score": 0.30328333526849743, "sibling_qid": "CHE-2026-05-0535-Q007", "sibling_text": "sart and ais sart", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What is an AIS-SART and how does it differ from a radar SART?", "cross_family": true }, { "answer_id": "BDC-P01-06", "score": 0.36440008878707886, "sibling_score": 0.36440008878707886, "answer_score": null, "sibling_qid": "CHE-2025-12-0319-Q004", "sibling_text": "why li not used and cross ques", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "Lithium batteries vs lead-acid — basics, electrolyte and selection limits", "cross_family": true }, { "answer_id": "IACS-324-001", "score": 0.34008869528770447, "sibling_score": 0.34008869528770447, "answer_score": 0.24080528914928437, "sibling_qid": "KOC-2025-02-0543-Q001", "sibling_text": "iacs", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "1. What is IACS and what are its functions?", "cross_family": true } ] }, { "qid": "MUM-2026-06-3507-Q006", "text": "MLC titles and owner liability?", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2026-06-3507", "tray": "new", "candidates": [ { "answer_id": "CLC-CIV-B-003", "score": 0.517475962638855, "sibling_score": 0.517475962638855, "answer_score": 0.2598203048110008, "sibling_qid": "MUM-2026-04-0880-Q004", "sibling_text": "mlc what is shipowner liability", "sibling_family": "MLC", "via": "sibling", "answer_title": "LLMC: purpose, scope and limitation of maritime claims", "cross_family": false }, { "answer_id": "MLC-WRH-B-001", "score": 0.4692920446395874, "sibling_score": 0.4692920446395874, "answer_score": null, "sibling_qid": "KOC-2026-05-2135-Q011", "sibling_text": "mlc titles explain title 1 explain dmlc part 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "MLC-WRH-B-006", "score": 0.4224182069301605, "sibling_score": 0.4224182069301605, "answer_score": null, "sibling_qid": "MUM-2026-07-3680-Q005", "sibling_text": "what is mlc certificate under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false } ] }, { "qid": "MUM-2026-06-3508-Q001", "text": "SOLAS chapter 11 and certificate ?", "family": "Surveys - Statutory", "subtopic": "Certificates List", "tid": "MUM-2026-06-3508", "tray": "new", "candidates": [ { "answer_id": "SOLAS-CH-007", "score": 0.6056450605392456, "sibling_score": 0.6056450605392456, "answer_score": 0.4180404707789421, "sibling_qid": "MUM-2026-06-3477-Q004", "sibling_text": "certificates under solas chapter xi", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS Chapter IX - ISM Code and certificates", "cross_family": true }, { "answer_id": "CERT-LIST-P02-001", "score": 0.5896733403205872, "sibling_score": 0.5896733403205872, "answer_score": null, "sibling_qid": "MUM-2022-11-0069-Q004", "sibling_text": "all certificate in solas chapter 4 of solas and certificate", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "SOLAS certificates carried onboard", "cross_family": false }, { "answer_id": "SOLAS-CH-016", "score": 0.534296989440918, "sibling_score": 0.534296989440918, "answer_score": 0.39916959404945374, "sibling_qid": "KOC-2023-11-0246-Q002", "sibling_text": "certificates under solas solas new ammendemnts solas chapters", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Codes and certificates under SOLAS", "cross_family": true } ] }, { "qid": "MUM-2026-06-3509-Q007", "text": "CHAPTER 15 ?", "family": "SOLAS - General (HOLD)", "subtopic": "Solas Chapters Overview", "tid": "MUM-2026-06-3509", "tray": "new", "candidates": [ { "answer_id": "SOLAS-OVW-012", "score": 0.5708678960800171, "sibling_score": 0.5708678960800171, "answer_score": null, "sibling_qid": "MUM-2026-06-3656-Q020", "sibling_text": "explain solas chapter 15", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "SOLAS Chapter XV and the newest chapters", "cross_family": true }, { "answer_id": "SOLAS-XII-BC-002", "score": 0.563920795917511, "sibling_score": 0.563920795917511, "answer_score": null, "sibling_qid": "MUM-2024-11-0220-Q002", "sibling_text": "chapter 12 in detail", "sibling_family": "SOLAS - General (HOLD)", "via": "sibling", "answer_title": "Explain SOLAS Chapter XII — the additional safety measures for bulk carriers", "cross_family": false }, { "answer_id": "SOLAS12-C-001", "score": 0.5129036903381348, "sibling_score": 0.5129036903381348, "answer_score": null, "sibling_qid": "KOC-2022-07-0079-Q010", "sibling_text": "chapter 12", "sibling_family": "", "via": "sibling", "answer_title": "Explain SOLAS Chapter XII for bulk carriers — oral-exam overview", "cross_family": false } ] }, { "qid": "MUM-2026-06-3509-Q008", "text": "MAIN GENERATOR COMES UNDER WHICH SOLAS ?", "family": "MARPOL - Annex II (NLS)", "subtopic": "Chemical Cargo / P&A Manual", "tid": "MUM-2026-06-3509", "tray": "new", "candidates": [ { "answer_id": "ALT-GEN-P01-002", "score": 0.4568689465522766, "sibling_score": 0.4568689465522766, "answer_score": null, "sibling_qid": "MUM-2024-03-1079-Q004", "sibling_text": "type of generator", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "2. Types of generator/alternator carried onboard", "cross_family": true }, { "answer_id": "ALT-GEN-P02-001", "score": 0.44778501987457275, "sibling_score": 0.44778501987457275, "answer_score": null, "sibling_qid": "KOC-2022-12-0121-Q002", "sibling_text": "generator spec", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Alternator/generator specifications, ratings and ship electrical supply details", "cross_family": true }, { "answer_id": "EDG-P01-001", "score": 0.43800216913223267, "sibling_score": 0.43800216913223267, "answer_score": null, "sibling_qid": "MUM-2022-07-1334-Q003", "sibling_text": "solas requirement for emcy gen", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Emergency source of power — the SOLAS requirements", "cross_family": true } ] }, { "qid": "MUM-2026-06-3509-Q009", "text": "YOUR JUNIOR GOT SHOCKED WHAT WILL YOU DO ?", "family": "ISM Code", "subtopic": "Joining Ship Handover", "tid": "MUM-2026-06-3509", "tray": "new", "candidates": [ { "answer_id": "JOIN-HDVR-003", "score": 0.6021229028701782, "sibling_score": 0.6021229028701782, "answer_score": null, "sibling_qid": "MUM-2026-01-0716-Q016", "sibling_text": "your junior got chocked what will you do", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Familiarising and training a newly joined junior engineer as Second Engineer", "cross_family": true }, { "answer_id": "ELEC-SAFE-009", "score": 0.5406931638717651, "sibling_score": 0.5406931638717651, "answer_score": 0.28091132640838623, "sibling_qid": "KOL-2021-07-2452-Q001", "sibling_text": "somebody got shock in front of you action step by step", "sibling_family": "", "via": "sibling", "answer_title": "Rescue and first aid for an electric-shock casualty", "cross_family": false }, { "answer_id": "BBF-621-002", "score": 0.5144845843315125, "sibling_score": 0.5144845843315125, "answer_score": 0.2483947992324829, "sibling_qid": "KOL-2019-04-3230-Q004", "sibling_text": "instruction to junior if back fire occurred", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Backfire has occurred on the oil-fired boiler. What are your actions as 2/E, and what instructions do you give the junior engineer or watchkeeper?", "cross_family": true } ] }, { "qid": "MUM-2026-06-3510-Q002", "text": "bank cushion effect?", "family": "Ship Construction & Stability", "subtopic": "DEFINITION", "tid": "MUM-2026-06-3510", "tray": "new", "candidates": [ { "answer_id": "RES-BUOY-001", "score": 0.4592173397541046, "sibling_score": 0.4592173397541046, "answer_score": null, "sibling_qid": "KOC-2026-10-2217-Q002", "sibling_text": "reserve buoyancy", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "What reserve buoyancy is, and what it tells you", "cross_family": false }, { "answer_id": "SQUAT-564-001", "score": 0.430910587310791, "sibling_score": 0.430910587310791, "answer_score": 0.2732848063111305, "sibling_qid": "MUM-2026-06-3655-Q008", "sibling_text": "squat effect", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Squat effect — the principle and the factors that drive it", "cross_family": false }, { "answer_id": "PPS-230-001", "score": 0.2653127074241638, "sibling_score": null, "answer_score": 0.2653127074241638, "sibling_qid": "", "sibling_text": "panting what it is and how the ship is protected in and out flexing of shell plating at the ends from the fluctuating water pressure as the ship pitches occurs at both ends worst at the bow making headway the after peak gets a similar effect", "sibling_family": "", "via": "answer_title", "answer_title": "Panting: what it is and how the ship is protected", "cross_family": false } ] }, { "qid": "MUM-2026-06-3510-Q004", "text": "ais and IRIT difference ?", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "MUM-2026-06-3510", "tray": "new", "candidates": [ { "answer_id": "PI-211-003", "score": 0.4376724064350128, "sibling_score": 0.4376724064350128, "answer_score": 0.2555280551314354, "sibling_qid": "KOL-2025-12-2940-Q006", "sibling_text": "differences between pi and ir", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "PI versus insulation resistance, and why the 1-minute and 10-minute readings are compared", "cross_family": true }, { "answer_id": "WIDAS-SMK-007", "score": 0.39031094312667847, "sibling_score": 0.39031094312667847, "answer_score": null, "sibling_qid": "MUM-2026-03-0855-Q003", "sibling_text": "diff between iso ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Smoke sampling line — testing, confirming clear, and what is in the tube", "cross_family": true }, { "answer_id": "IACS-324-001", "score": 0.37670791149139404, "sibling_score": 0.37670791149139404, "answer_score": 0.27881178706884385, "sibling_qid": "KOC-2025-02-0543-Q001", "sibling_text": "iacs", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "1. What is IACS and what are its functions?", "cross_family": true } ] }, { "qid": "MUM-2026-06-3512-Q002", "text": "What is pilot in Hydraulic Valve and types?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2026-06-3512", "tray": "new", "candidates": [ { "answer_id": "PLV-3-2-BF055-001", "score": 0.616092324256897, "sibling_score": 0.616092324256897, "answer_score": null, "sibling_qid": "MUM-2024-11-2776-Q006", "sibling_text": "draw pilot operated 3 2 valve", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Draw and explain a 3-port, 2-position (3/2) pilot- or solenoid-operated spring-return valve", "cross_family": true }, { "answer_id": "CBV-003", "score": 0.5853106379508972, "sibling_score": 0.5853106379508972, "answer_score": 0.5148428857326507, "sibling_qid": "MUM-2022-12-2720-Q010", "sibling_text": "what is use of pilot line and something in counterbalance valve", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "What is the use of the pilot line in a counter-balance valve?", "cross_family": true }, { "answer_id": "PUR-OPS-P01-005", "score": 0.5631452798843384, "sibling_score": 0.5631452798843384, "answer_score": null, "sibling_qid": "KOL-2018-03-1357-Q004", "sibling_text": "level ring water pairing disc pilot valve", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Internal control components — paring disc, level ring, pilot valves, nozzles and seals", "cross_family": true } ] }, { "qid": "MUM-2026-06-3512-Q005", "text": "Which is better rotary vane or 4 ram?", "family": "Steering Gear & Hydraulics", "subtopic": "Rotary Vane", "tid": "MUM-2026-06-3512", "tray": "new", "candidates": [ { "answer_id": "RVSG-213-004", "score": 0.553069531917572, "sibling_score": 0.553069531917572, "answer_score": null, "sibling_qid": "KOC-2025-01-1023-Q010", "sibling_text": "rotary vane sg and emcy operation", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Redundancy, emergency steering, local operation & bypass", "cross_family": false }, { "answer_id": "RVSG-213-001", "score": 0.5501739382743835, "sibling_score": 0.5501739382743835, "answer_score": null, "sibling_qid": "KOC-2024-10-0929-Q005", "sibling_text": "rotary vane", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Construction, main parts, materials & vane fitment", "cross_family": false }, { "answer_id": "RVSG-213-003", "score": 0.5259914398193359, "sibling_score": 0.5259914398193359, "answer_score": null, "sibling_qid": "KOL-2016-11-1254-Q003", "sibling_text": "how sealing is done in rotary vane type and what arrangements given for shock absorption", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Sealing, clearances, relief, shock absorption & volumetric efficiency", "cross_family": false } ] }, { "qid": "MUM-2026-06-3512-Q007", "text": "How to identify internal leakage.", "family": "Air Compressor", "subtopic": "Inter-cooler / After-cooler", "tid": "MUM-2026-06-3512", "tray": "new", "candidates": [ { "answer_id": "REFR-FLT-003", "score": 0.5920112729072571, "sibling_score": 0.5920112729072571, "answer_score": null, "sibling_qid": "KOL-2025-03-3744-Q003", "sibling_text": "refer leak detection", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Refrigerant leakage or loss: detect, confirm, respond, and the record-keeping", "cross_family": true }, { "answer_id": "CYL-LINER-P03-002", "score": 0.5491014719009399, "sibling_score": 0.5491014719009399, "answer_score": null, "sibling_qid": "KOL-2018-05-1373-Q013", "sibling_text": "linear leaking how will u find", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Detecting and confirming a cracked or leaking liner — and pinning the unit", "cross_family": true }, { "answer_id": "SBPG-A-003", "score": 0.5434718132019043, "sibling_score": 0.5434718132019043, "answer_score": 0.4298819273710251, "sibling_qid": "MUM-2026-04-2956-Q003S4", "sibling_text": "from where its leaking", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Stuffing box leakage — symptoms, drain-tank rise, running checks, source and post-assembly confirmation", "cross_family": true } ] }, { "qid": "MUM-2026-06-3512-Q008", "text": "Latest Developments in OMD", "family": "Steering Gear & Hydraulics", "subtopic": "Telemotor", "tid": "MUM-2026-06-3512", "tray": "new", "candidates": [ { "answer_id": "ODC-013", "score": 0.44480764865875244, "sibling_score": 0.44480764865875244, "answer_score": null, "sibling_qid": "KOL-2023-07-0757-Q005", "sibling_text": "odm working", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "ODMCS / ODME — purpose, components and working principle", "cross_family": true }, { "answer_id": "MCC-MEB-P02-001", "score": 0.3815810978412628, "sibling_score": 0.3815810978412628, "answer_score": null, "sibling_qid": "MUM-2026-07-3786-Q004", "sibling_text": "me engine latest developments", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Trace the development from MC / SMC engines to MC-C and ME engines", "cross_family": true }, { "answer_id": "OMD-003", "score": 0.3807137906551361, "sibling_score": 0.3807137906551361, "answer_score": null, "sibling_qid": "MUM-2025-10-1199-Q007", "sibling_text": "working principle of omd", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Explain the OMD working principle, its types and their differences, the electrical side, and zero setting and calibration.", "cross_family": true } ] }, { "qid": "MUM-2026-06-3512-Q009", "text": "Where exactly LO pipe connected to Telescopic Pipe in MC-C engine. ", "family": "Pumps - Centrifugal & PD", "subtopic": "Pump Priming / Suction", "tid": "MUM-2026-06-3512", "tray": "new", "candidates": [ { "answer_id": "PIPE-MAT-007", "score": 0.4630202054977417, "sibling_score": 0.4630202054977417, "answer_score": null, "sibling_qid": "KOL-2024-04-3681-Q004", "sibling_text": "seamless pipe where onboard", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Seamless pipe — manufacture, use onboard, vs welded", "cross_family": true }, { "answer_id": "PIPEFAB-001", "score": 0.45890137553215027, "sibling_score": 0.45890137553215027, "answer_score": null, "sibling_qid": "MUM-2023-10-2201-Q005", "sibling_text": "pipe removed from place what instructions to tme", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "A damaged pipe has been removed — fabricate the new one: profiling an uneven/bent section and the instructions you give the 3/E or fitter", "cross_family": true }, { "answer_id": "PHL-001", "score": 0.45083552598953247, "sibling_score": 0.45083552598953247, "answer_score": null, "sibling_qid": "MUM-2026-02-2552-Q005", "sibling_text": "found hole in bilge suction main line after isolation and checks how to find out exact local of hole internet connection gone in between oral later i joined internal directly told fun 4b repeat and fun 6 pass", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "There is a hole in a line — bilge suction main, sea-water line, starting-air line or steam line: your action as 2/E, and how you find the exact location", "cross_family": false } ] }, { "qid": "MUM-2026-06-3512-Q011", "text": "Centrifugal Pump, Priming Unit not engaged during start with shaft, reason ?", "family": "", "subtopic": "", "tid": "MUM-2026-06-3512", "tray": "new", "candidates": [ { "answer_id": "PPS-622-001", "score": 0.6283280253410339, "sibling_score": 0.6283280253410339, "answer_score": 0.5458531737327575, "sibling_qid": "KOL-2017-12-1333-Q004", "sibling_text": "in what condition priming device is required in a centrifugal pump why gear pump does not required it", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Why is priming needed in a centrifugal pump, when is a priming device required, why does a gear pump not need one, and how do you start a centrifugal pump?", "cross_family": false }, { "answer_id": "PPS-622-002", "score": 0.6099969148635864, "sibling_score": 0.6099969148635864, "answer_score": 0.47031307518482207, "sibling_qid": "KOL-2018-05-1376-Q003", "sibling_text": "how priming device work in centrifugal pump", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Explain the priming system for centrifugal pumps, how the priming device works, and the centralised priming system — how it works and where it is applicable.", "cross_family": false }, { "answer_id": "PPS-622-005", "score": 0.6037669777870178, "sibling_score": 0.6037669777870178, "answer_score": null, "sibling_qid": "MUM-2026-07-3817-Q013", "sibling_text": "priming pump working", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "What is the priming arrangement for the emergency fire pump, and how do you demonstrate to the surveyor that the priming unit works satisfactorily?", "cross_family": false } ] }, { "qid": "MUM-2026-06-3513-Q005", "text": "Max Linear wear , where and why ( again some exact location ) ?", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "MUM-2026-06-3513", "tray": "new", "candidates": [ { "answer_id": "CYL-LINER-P01-003", "score": 0.6159718036651611, "sibling_score": 0.6159718036651611, "answer_score": null, "sibling_qid": "KOL-2025-03-3765-Q005", "sibling_text": "wear rate of linear", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "From the readings: wear, wear rate, units and renewal limits", "cross_family": false }, { "answer_id": "CYL-LINER-P02-005", "score": 0.5919896364212036, "sibling_score": 0.5919896364212036, "answer_score": 0.41608233451843263, "sibling_qid": "MUM-2025-09-1197-Q002", "sibling_text": "where will liner wear the most and why", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L5 · T044-PART_02-G005High", "cross_family": false }, { "answer_id": "CYL-LINER-P02-003", "score": 0.5158904194831848, "sibling_score": 0.5158904194831848, "answer_score": 0.3670544773340225, "sibling_qid": "MUM-2026-06-3366-Q009", "sibling_text": "how liner gets worned out", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L3 · T044-PART_02-G003High", "cross_family": false } ] }, { "qid": "MUM-2026-06-3514-Q006", "text": "What is GI and GA ?", "family": "NDT & Material Testing", "subtopic": "", "tid": "MUM-2026-06-3514", "tray": "new", "candidates": [ { "answer_id": "MEGI-304-002", "score": 0.4877013862133026, "sibling_score": 0.4877013862133026, "answer_score": 0.24112219214439393, "sibling_qid": "KOC-2025-07-1043-Q002", "sibling_text": "explain gi and ga engines", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "2. ME-GI / ME-GA / ME-G and recent dual-fuel engine advancements", "cross_family": true }, { "answer_id": "IGC-IGF-001", "score": 0.3846461772918701, "sibling_score": 0.3846461772918701, "answer_score": 0.2413885325193405, "sibling_qid": "MUM-2025-06-0313-Q006", "sibling_text": "igf and igc code", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "IGC Code vs IGF Code — what they are and the difference", "cross_family": true }, { "answer_id": "GM-META-006", "score": 0.38197576999664307, "sibling_score": 0.38197576999664307, "answer_score": null, "sibling_qid": "MUM-2022-09-0048-Q011", "sibling_text": "what is gm and gz", "sibling_family": "", "via": "sibling", "answer_title": "GM and the righting lever GZ", "cross_family": false } ] }, { "qid": "MUM-2026-06-3517-Q002", "text": "Function of reference cell in ICCP ?", "family": "Electrical - ICCP & Cathodic Protection", "subtopic": "ICCP", "tid": "MUM-2026-06-3517", "tray": "review", "candidates": [ { "answer_id": "ICCP-P02-001", "score": 0.8219232559204102, "sibling_score": 0.8219232559204102, "answer_score": 0.478238183259964, "sibling_qid": "MUM-2025-07-1566-Q002", "sibling_text": "function of reference cell in iccp", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP reference cell / reference electrode — purpose, material, location, selection", "cross_family": false }, { "answer_id": "REF-CELL-001", "score": 0.6899939179420471, "sibling_score": 0.6899939179420471, "answer_score": 0.47397086024284363, "sibling_qid": "MUM-2025-05-2802-Q004", "sibling_text": "what is purpose of refrence cell in iccp no questions from internal", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "Purpose of the reference cell in an ICCP system", "cross_family": false }, { "answer_id": "ICCP-119-P01-001", "score": 0.6232545971870422, "sibling_score": 0.6232545971870422, "answer_score": null, "sibling_qid": "MUM-2025-11-1786-Q006", "sibling_text": "iccp function of refence electrode", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP — purpose, principle and basic working", "cross_family": false } ] }, { "qid": "MUM-2026-06-3519-Q002", "text": "After starting generator voltage is not showing how to troubleshoot?", "family": "Electrical - Generator & Alternator", "subtopic": "Voltage Not Coming", "tid": "MUM-2026-06-3519", "tray": "review", "candidates": [ { "answer_id": "NO-VOLT-001", "score": 0.8499730229377747, "sibling_score": 0.8499730229377747, "answer_score": 0.6397556602954865, "sibling_qid": "MUM-2026-06-3484-Q007", "sibling_text": "your junior told no voltage showing after generator start", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "The 3/E reports the generator has started but no voltage is showing — reasons, and your actions as 2/E", "cross_family": false }, { "answer_id": "RES-MAG-002", "score": 0.7822454571723938, "sibling_score": 0.7822454571723938, "answer_score": 0.632766517996788, "sibling_qid": "KOL-2025-08-2843-Q011", "sibling_text": "generator started voltage not coming trimmer circuit", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Generator started but no voltage developing — reasons, and your action as Second Engineer", "cross_family": false }, { "answer_id": "NO-VOLT-004", "score": 0.6076733231544494, "sibling_score": null, "answer_score": 0.6076733231544494, "sibling_qid": "", "sibling_text": "the generator is turning the voltmeter reads zero and the meters were recently calibrated how do you investigate and how do you remove and test the voltmeter calibrated is not the same as working a certificate covers accuracy on a date it does not cover a blown fuse a dirty selector contact or a failure since prove the machine first the maker s own instruction is to use a single independent instru", "sibling_family": "", "via": "answer_title", "answer_title": "The generator is turning, the voltmeter reads zero, and the meters were recently calibrated — how do you investigate, and how do you remove and test the voltmeter?", "cross_family": false } ] }, { "qid": "MUM-2026-06-3520-Q003", "text": "Actions of alternator not generating voltage ?", "family": "Electrical - Generator & Alternator", "subtopic": "Voltage Not Coming", "tid": "MUM-2026-06-3520", "tray": "review", "candidates": [ { "answer_id": "NO-VOLT-001", "score": 0.8127450942993164, "sibling_score": 0.8127450942993164, "answer_score": 0.5549242496490479, "sibling_qid": "MUM-2025-08-1578-Q003", "sibling_text": "actions of alternator not generating voltage", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "The 3/E reports the generator has started but no voltage is showing — reasons, and your actions as 2/E", "cross_family": false }, { "answer_id": "RES-MAG-002", "score": 0.7305677533149719, "sibling_score": 0.7305677533149719, "answer_score": 0.5115750610828399, "sibling_qid": "MUM-2026-06-3511-Q010", "sibling_text": "alternator not picking voltage", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Generator started but no voltage developing — reasons, and your action as Second Engineer", "cross_family": false }, { "answer_id": "ALT-MTN-B-001", "score": 0.5057595998048782, "sibling_score": null, "answer_score": 0.5057595998048782, "sibling_qid": "", "sibling_text": "routine onboard alternator maintenance checks clean air path dry low pressure air blow through cooler and filters clear keep winding temperature in band insulation resistance to earth on a megger trended over time investigate a falling trend do not wait for the alarm", "sibling_family": "", "via": "answer_title", "answer_title": "Routine onboard alternator maintenance checks", "cross_family": false } ] }, { "qid": "MUM-2026-06-3522-Q001", "text": "Vacuum diode?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Zener / Diode / Rectifier", "tid": "MUM-2026-06-3522", "tray": "new", "candidates": [ { "answer_id": "EPC-P02-01", "score": 0.6380066275596619, "sibling_score": 0.6380066275596619, "answer_score": null, "sibling_qid": "MUM-2025-08-1571-Q002", "sibling_text": "voltage diode", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a zener diode? Draw its symbol, explain its working principle, and draw and explain its characteristic curve including the zener (breakdown) voltage.", "cross_family": false }, { "answer_id": "EPC-P01-01", "score": 0.6270172595977783, "sibling_score": 0.6270172595977783, "answer_score": 0.41676021814346315, "sibling_qid": "MUM-2026-03-2035-Q009", "sibling_text": "diode", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a diode? Symbol, forward and reverse bias, and the characteristic curve", "cross_family": false }, { "answer_id": "EPC-P01-02", "score": 0.6107184290885925, "sibling_score": 0.6107184290885925, "answer_score": 0.4400217592716217, "sibling_qid": "KOC-2026-02-1715-Q004", "sibling_text": "type of diodes", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Types of diodes, and where diodes are used on board", "cross_family": false } ] }, { "qid": "MUM-2026-06-3523-Q002", "text": "Stress hardening ?", "family": "NDT & Material Testing", "subtopic": "Stress / Strain", "tid": "MUM-2026-06-3523", "tray": "new", "candidates": [ { "answer_id": "HT-TCS-B-003", "score": 0.5933364629745483, "sibling_score": 0.5933364629745483, "answer_score": 0.39612737596035, "sibling_qid": "MUM-2024-11-2250-Q001", "sibling_text": "material hardening process", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Hardening — purpose, suitable materials and components", "cross_family": false }, { "answer_id": "HT-TCS-B-002", "score": 0.5765565037727356, "sibling_score": 0.5765565037727356, "answer_score": 0.41135450154542924, "sibling_qid": "KOL-2020-01-3313-Q003", "sibling_text": "case hardnening", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Case & surface hardening — methods and engine components", "cross_family": false }, { "answer_id": "HT-A-001", "score": 0.5733148455619812, "sibling_score": 0.5733148455619812, "answer_score": null, "sibling_qid": "CHE-2026-05-0569-Q006", "sibling_text": "hardening heat treatment process", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Heat treatment: what it is, the main methods, and why it is done", "cross_family": false } ] }, { "qid": "MUM-2026-06-3523-Q003", "text": "Which part is stress hardened ?", "family": "NDT & Material Testing", "subtopic": "Stress / Strain", "tid": "MUM-2026-06-3523", "tray": "new", "candidates": [ { "answer_id": "MATPROP-A-004", "score": 0.5305166244506836, "sibling_score": 0.5305166244506836, "answer_score": 0.3680250972509384, "sibling_qid": "KOL-2023-03-4020-Q007", "sibling_text": "stress raiser stress raiser in shafts", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Mechanical properties", "cross_family": false }, { "answer_id": "HEAT-TRT-C-001", "score": 0.5305001139640808, "sibling_score": 0.5305001139640808, "answer_score": null, "sibling_qid": "KOL-2020-02-1526-Q003", "sibling_text": "hardening in which component nitriding", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Nitriding — process, gas and where it is used on board", "cross_family": false }, { "answer_id": "HT-TCS-B-003", "score": 0.5293808579444885, "sibling_score": 0.5293808579444885, "answer_score": 0.3621438235044479, "sibling_qid": "CHE-2025-12-0459-Q004", "sibling_text": "hardening purpose of hardening which part in engine hardened", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Hardening — purpose, suitable materials and components", "cross_family": false } ] }, { "qid": "MUM-2026-06-3523-Q006", "text": "Blow down ring?", "family": "Boilers - Operations & Firing", "subtopic": "Scum / Blow Down", "tid": "MUM-2026-06-3523", "tray": "new", "candidates": [ { "answer_id": "SBD-002", "score": 0.4496477246284485, "sibling_score": 0.4496477246284485, "answer_score": null, "sibling_qid": "KOL-2023-01-1722-Q005", "sibling_text": "blr bottom blow down when you will why you will do rest i forgot", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "What is scum blow down and bottom blow down — why and when, the valve opening sequence, and what you check afterwards? How do you instruct the junior engineer or TME?", "cross_family": false }, { "answer_id": "WRG-004", "score": 0.4385744631290436, "sibling_score": 0.4385744631290436, "answer_score": null, "sibling_qid": "MUM-2026-05-3301-Q007", "sibling_text": "wear ring wearing out", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Why wear rings wear, why they wear out frequently, and reusing an over-clearance ring with no spare on board", "cross_family": true }, { "answer_id": "SB-PRG-B-002", "score": 0.4203798174858093, "sibling_score": 0.4203798174858093, "answer_score": null, "sibling_qid": "MUM-2023-03-2165-Q002", "sibling_text": "stuffing box overhaul draw the various segments of rings if limit exceed what can be done", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Worn rings, springs, O-rings and no-spare actions", "cross_family": true } ] }, { "qid": "MUM-2026-06-3523-Q011", "text": "Type of anchor chain and anchor Equipment number ?", "family": "Auxiliary Equipment", "subtopic": "Anchor / Anchor Chain", "tid": "MUM-2026-06-3523", "tray": "review", "candidates": [ { "answer_id": "ANCH-CHN-A-001", "score": 0.7919076085090637, "sibling_score": 0.7919076085090637, "answer_score": null, "sibling_qid": "MUM-2022-09-2146-Q004", "sibling_text": "type of anchor chain and what is equipment no and material", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Types of anchor & holding characteristics", "cross_family": false }, { "answer_id": "ANCH-CHN-A-002", "score": 0.7168291211128235, "sibling_score": 0.7168291211128235, "answer_score": null, "sibling_qid": "MUM-2026-06-3356-Q005", "sibling_text": "type of anchor type of anchor chain on your ship material", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Chain construction: material, stud links & joining shackles", "cross_family": false }, { "answer_id": "ANCH-CHN-A-004", "score": 0.7056350111961365, "sibling_score": 0.7056350111961365, "answer_score": 0.5013482898473739, "sibling_qid": "KOC-2024-10-0433-Q007", "sibling_text": "anchor chain arrangement", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Cable arrangement: anchor to bitter end, and the bitter-end release", "cross_family": false } ] }, { "qid": "MUM-2026-06-3524-Q005", "text": "⁠boiler sliding feet arrangement. Arrangement given for expansion of pipelines on boiler?", "family": "Heat Exchangers & Coolers", "subtopic": "Expansion Arrangement", "tid": "MUM-2026-06-3524", "tray": "new", "candidates": [ { "answer_id": "BLR-TUBE-P01-003", "score": 0.6319652795791626, "sibling_score": 0.6319652795791626, "answer_score": 0.5069781184196472, "sibling_qid": "KOL-2017-04-1287-Q005", "sibling_text": "boiler tubes expansion arrangement", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "02. Thermal expansion arrangements for boiler tubes", "cross_family": true }, { "answer_id": "BLR-TUBE-P02-001", "score": 0.560455858707428, "sibling_score": 0.560455858707428, "answer_score": null, "sibling_qid": "KOL-2018-01-1347-Q005", "sibling_text": "how is expansion of tubes accomodated in boilers ege how is leakage prevented in such an arrangement due to expansion", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Identifying a boiler tube leak and finding the leaking tube", "cross_family": true }, { "answer_id": "BLR-TUBE-P01-001", "score": 0.5576134920120239, "sibling_score": 0.5576134920120239, "answer_score": 0.5150945842266083, "sibling_qid": "KOL-2019-01-3207-Q003", "sibling_text": "how boiler tubes are fitted", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "01. Attaching, fitting and supporting boiler tubes", "cross_family": true } ] }, { "qid": "MUM-2026-06-3524-Q008", "text": "⁠what is surging? cross ques", "family": "Electrical - Batteries & DC Systems", "subtopic": "Battery", "tid": "MUM-2026-06-3524", "tray": "new", "candidates": [ { "answer_id": "TC-SURGE-001", "score": 0.5173022150993347, "sibling_score": 0.5173022150993347, "answer_score": 0.3127300336956978, "sibling_qid": "CHE-2025-11-0223-Q009", "sibling_text": "what is surging bht saare cross", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "What is turbocharger surging, and what happens inside the turbocharger when it surges?", "cross_family": true }, { "answer_id": "TCS-059-P04-009", "score": 0.4595778286457062, "sibling_score": 0.4595778286457062, "answer_score": 0.2714342296123505, "sibling_qid": "KOL-2025-08-2008-Q003", "sibling_text": "what is surge line xxx", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Surging and the surge line", "cross_family": true }, { "answer_id": "CSAS-SURV-004", "score": 0.4276079535484314, "sibling_score": 0.4276079535484314, "answer_score": null, "sibling_qid": "KOC-2024-03-0324-Q004", "sibling_text": "whats an additional survey many cross", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Annual vs intermediate vs periodical vs additional survey", "cross_family": true } ] }, { "qid": "MUM-2026-06-3524-Q011", "text": "Liner nominal wear rate formula and why multiplied by 1000?", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "MUM-2026-06-3524", "tray": "new", "candidates": [ { "answer_id": "CYL-LINER-P01-003", "score": 0.6134892702102661, "sibling_score": 0.6134892702102661, "answer_score": 0.4321124076843262, "sibling_qid": "MUM-2025-06-2808-Q005", "sibling_text": "liner wear rate how to calculate", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "From the readings: wear, wear rate, units and renewal limits", "cross_family": false }, { "answer_id": "CYL-LINER-P01-001", "score": 0.5692476630210876, "sibling_score": 0.5692476630210876, "answer_score": 0.35784280896186826, "sibling_qid": "MUM-2023-08-2184-Q001", "sibling_text": "liner calibration 0vality rate of wear", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Carrying out main-engine liner calibration (gauging)", "cross_family": false }, { "answer_id": "CYL-LINER-P01-002", "score": 0.5482922196388245, "sibling_score": 0.5482922196388245, "answer_score": null, "sibling_qid": "CHE-2026-03-0492-Q001", "sibling_text": "liner calibration how it is done how to calculate wear rate ovality no of position to be taken and their positions", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Getting true readings: tool, position and temperature", "cross_family": false } ] }, { "qid": "MUM-2026-06-3525-Q004", "text": "What testing are done in shop trials?", "family": "Electrical - Motors & Starters", "subtopic": "IR Test / Insulation Resistance", "tid": "MUM-2026-06-3525", "tray": "new", "candidates": [ { "answer_id": "IND-MOT-A-001", "score": 0.4976500868797302, "sibling_score": 0.4976500868797302, "answer_score": null, "sibling_qid": "MUM-2024-02-1423-Q002", "sibling_text": "tests carried out on motors", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "1. Working principle of a three-phase induction motor", "cross_family": false }, { "answer_id": "ETP-344-P01-008", "score": 0.49752941727638245, "sibling_score": 0.49752941727638245, "answer_score": 0.37757950723171235, "sibling_qid": "MUM-2026-02-1261-Q004", "sibling_text": "difference between sea trial and shop test trial", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Verifying power — shop test, test bed, sea trial", "cross_family": true }, { "answer_id": "PI-211-004", "score": 0.49525704979896545, "sibling_score": 0.49525704979896545, "answer_score": null, "sibling_qid": "KOL-2024-03-2702-Q005", "sibling_text": "pi test and dar test", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "PI and DAR — how they relate, their purpose, and acceptable values", "cross_family": false } ] }, { "qid": "MUM-2026-06-3525-Q005", "text": "What type of ship in manned and unmanned condition Unmanned condition solas rules?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-06-3525", "tray": "new", "candidates": [ { "answer_id": "UMS-310-001", "score": 0.6091563105583191, "sibling_score": 0.6091563105583191, "answer_score": 0.5561026930809021, "sibling_qid": "MUM-2026-06-3410-Q005", "sibling_text": "solas regulations of unmanned engine room", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "What is a UMS ship and what does SOLAS require? (Part E, regs 46–53)", "cross_family": true }, { "answer_id": "ANCH-C-006", "score": 0.572426974773407, "sibling_score": 0.572426974773407, "answer_score": null, "sibling_qid": "MUM-2026-06-3459-Q001", "sibling_text": "type of ship sail and status of other function", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "BCME-002", "score": 0.5535860061645508, "sibling_score": 0.5535860061645508, "answer_score": 0.4599535644054413, "sibling_qid": "KOC-2024-11-0464-Q008", "sibling_text": "remote operation of propulsion machinery solas requirement", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "SOLAS requirements for remote control of propulsion machinery from the bridge", "cross_family": true } ] }, { "qid": "MUM-2026-06-3525-Q006", "text": "What type of iso fuels are used on board ? Elaborate? Fame?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Transformer Theory", "tid": "MUM-2026-06-3525", "tray": "new", "candidates": [ { "answer_id": "FQCC-583-A-002", "score": 0.5375560522079468, "sibling_score": 0.5375560522079468, "answer_score": null, "sibling_qid": "MUM-2022-10-0055-Q002", "sibling_text": "bunker fuel under which iso", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "ISO 8217 — the standard, and what changed from 2017 to 2024", "cross_family": true }, { "answer_id": "AV6-P01-05", "score": 0.502782940864563, "sibling_score": 0.502782940864563, "answer_score": null, "sibling_qid": "MUM-2024-10-0964-Q005", "sibling_text": "iso 8217 17 comparison with iso 8217 2024 apart from fame tell other fuels wanted to hear about sng", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Compare ISO 8217:2017 with ISO 8217:2024, including the FAME and newer-fuel categories the examiner asks about.", "cross_family": true }, { "answer_id": "ALT-FUEL-002", "score": 0.4785693883895874, "sibling_score": 0.4785693883895874, "answer_score": null, "sibling_qid": "MUM-2026-06-3494-Q003", "sibling_text": "methanol fuel", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is methanol as a marine fuel, and what are its advantages and disadvantages?", "cross_family": true } ] }, { "qid": "MUM-2026-06-3525-Q007", "text": "How fame is produced? Reaction?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Bio Fuel / Methanol / Ammonia", "tid": "MUM-2026-06-3525", "tray": "new", "candidates": [ { "answer_id": "AV6-P03-02", "score": 0.37850135564804077, "sibling_score": 0.37850135564804077, "answer_score": null, "sibling_qid": "MUM-2026-09-3912-Q007", "sibling_text": "scr and its chemical reaction gave all answers", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SCR for marine NOx control — meaning, working principle, chemistry and system components", "cross_family": true }, { "answer_id": "SIH-FIRE-003", "score": 0.36832231283187866, "sibling_score": 0.36832231283187866, "answer_score": 0.2867746397852898, "sibling_qid": "KOL-2017-08-1322-Q005", "sibling_text": "iron fire dont tell me the temp tell the chemical reactions", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Iron fire — what are the chemical reactions involved?", "cross_family": true }, { "answer_id": "FQCC-583-A-004", "score": 0.3656189441680908, "sibling_score": 0.3656189441680908, "answer_score": 0.31997708082199094, "sibling_qid": "MUM-2025-12-0616-Q001", "sibling_text": "fame test", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "FAME — what it is, why it is blended, and the limits", "cross_family": false } ] }, { "qid": "MUM-2026-06-3525-Q008", "text": "What certificates are present for new liner if we have to install new liner?", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "MUM-2026-06-3525", "tray": "review", "candidates": [ { "answer_id": "CYL-LINER-P03-005", "score": 0.7246749401092529, "sibling_score": 0.7246749401092529, "answer_score": 0.4093808367848396, "sibling_qid": "MUM-2026-06-3537-Q005", "sibling_text": "what certificates are present for new liner if we have to install new liner", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Spare cylinder liner — what checks and certificates before you fit it?", "cross_family": false }, { "answer_id": "LL-CONV-P04-002", "score": 0.5627404451370239, "sibling_score": 0.5627404451370239, "answer_score": null, "sibling_qid": "MUM-2025-06-0328-Q008", "sibling_text": "load line certificates", "sibling_family": "", "via": "sibling", "answer_title": "Load Line Convention, certificates, assigning authority and detention risk", "cross_family": false }, { "answer_id": "CYL-LINER-P03-002", "score": 0.5393289923667908, "sibling_score": 0.5393289923667908, "answer_score": null, "sibling_qid": "MUM-2026-05-3186-Q006", "sibling_text": "you joined as 2e and found one liner is cracked company asked you to change it how will you find the spare liner is new what all certificates you check related to spare liner what all checks you will do in spare liner", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Detecting and confirming a cracked or leaking liner — and pinning the unit", "cross_family": false } ] }, { "qid": "MUM-2026-06-3525-Q011", "text": "What is droop?", "family": "Automation & Controls", "subtopic": "Droop", "tid": "MUM-2026-06-3525", "tray": "new", "candidates": [ { "answer_id": "DROOP-001", "score": 0.5587679743766785, "sibling_score": 0.5587679743766785, "answer_score": 0.3015769988298416, "sibling_qid": "MUM-2026-07-3817-Q011", "sibling_text": "gov droop", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Governor / speed droop — what, why, setting and formula", "cross_family": false }, { "answer_id": "DROOP-002", "score": 0.5134211778640747, "sibling_score": 0.5134211778640747, "answer_score": null, "sibling_qid": "KOL-2022-10-1925-Q003", "sibling_text": "droop characteristics", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Speed-droop characteristic — the curve and what it shows", "cross_family": false }, { "answer_id": "AVRD-618-001", "score": 0.5042197704315186, "sibling_score": 0.5042197704315186, "answer_score": null, "sibling_qid": "CHE-2026-09-3928-Q007", "sibling_text": "avr droop", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "What is AVR droop, and why is it required?", "cross_family": true } ] }, { "qid": "MUM-2026-06-3525-Q012", "text": "What are the hunting reasons in generator?", "family": "Automation & Controls", "subtopic": "Governor (Mechanical / Electronic)", "tid": "MUM-2026-06-3525", "tray": "new", "candidates": [ { "answer_id": "GOV-P03-003", "score": 0.5655301213264465, "sibling_score": 0.5655301213264465, "answer_score": 0.3090487658977508, "sibling_qid": "KOL-2022-05-3538-Q003", "sibling_text": "ae hunting reasons and how to rectify", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Hunting, RPM fluctuation and troubleshooting", "cross_family": false }, { "answer_id": "STEER-055-A-003", "score": 0.5227763652801514, "sibling_score": 0.5227763652801514, "answer_score": null, "sibling_qid": "KOL-2021-10-0558-Q008", "sibling_text": "hunting in steering gear reasons", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Hunting gear, floating lever and buffer spring", "cross_family": true }, { "answer_id": "AE-GOV-005", "score": 0.4567643105983734, "sibling_score": 0.4567643105983734, "answer_score": 0.3227013066411018, "sibling_qid": "MUM-2026-07-3772-Q003", "sibling_text": "hunting of governor", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "5. Governor hunting — causes and rectification", "cross_family": false } ] }, { "qid": "MUM-2026-06-3527-Q001", "text": "What type of ship sailed?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-06-3527", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.812366783618927, "sibling_score": 0.812366783618927, "answer_score": null, "sibling_qid": "CHE-2026-02-0478-Q004", "sibling_text": "this type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7859905362129211, "sibling_score": 0.7859905362129211, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.46793303489685056, "sibling_score": null, "answer_score": 0.46793303489685056, "sibling_qid": "", "sibling_text": "type a and type b ships how form and cargo set the freeboard", "sibling_family": "", "via": "answer_title", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "MUM-2026-06-3527-Q002", "text": "My ship was DP vessel ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-06-3527", "tray": "new", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.589144766330719, "sibling_score": 0.589144766330719, "answer_score": null, "sibling_qid": "MUM-2026-02-1280-Q001", "sibling_text": "type of ship done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "CHEM-PA-011", "score": 0.5783402323722839, "sibling_score": 0.5783402323722839, "answer_score": null, "sibling_qid": "MUM-2026-03-2938-Q002", "sibling_text": "which vessel", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "What ‘en route’ means for Annex II discharge", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.5705562233924866, "sibling_score": 0.5705562233924866, "answer_score": null, "sibling_qid": "CHE-2026-02-0478-Q004", "sibling_text": "this type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false } ] }, { "qid": "MUM-2026-06-3527-Q004", "text": "How many pumps were driven by main engine. (SW, FW, LUB OIL, FUEL PUMP USING CAMSHAFT) ?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Injection System", "tid": "MUM-2026-06-3527", "tray": "new", "candidates": [ { "answer_id": "FP-OVHL-006", "score": 0.5948103666305542, "sibling_score": 0.5948103666305542, "answer_score": 0.48797928988933564, "sibling_qid": "KOL-2021-02-1893-Q001", "sibling_text": "type of main engine full details sulzer rta 12cyl 96c fuel pump working how to control the amount of fuel injected in the pump tell him without vit", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Main-engine fuel pump — construction, working, VIT, reversing, MC vs ME-C", "cross_family": false }, { "answer_id": "FCL-P02-001", "score": 0.5834990739822388, "sibling_score": 0.5834990739822388, "answer_score": null, "sibling_qid": "KOL-2025-03-4048-Q002", "sibling_text": "fuel pump timing main and a e both", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel pump / injection timing check, setting, and adjustment", "cross_family": false }, { "answer_id": "FCL-P03-003", "score": 0.5747426152229309, "sibling_score": 0.5747426152229309, "answer_score": null, "sibling_qid": "KOC-2022-06-0964-Q007", "sibling_text": "fuel pump timing of both b w and sulzer engine with diagram for b w engine", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Sulzer / RTA fuel pump timing and lead", "cross_family": false } ] }, { "qid": "MUM-2026-06-3527-Q009", "text": "Centrifugal pump parts and wear ring material?", "family": "Pumps - Centrifugal & PD", "subtopic": "Wear Ring", "tid": "MUM-2026-06-3527", "tray": "review", "candidates": [ { "answer_id": "WRG-001", "score": 0.7494434118270874, "sibling_score": 0.7494434118270874, "answer_score": 0.5239382803440094, "sibling_qid": "KOC-2026-01-1094-Q003", "sibling_text": "centrifugal pump wear ring use", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "What the wear ring is for, where it sits, how many, which part rotates — and why a sleeve is used", "cross_family": false }, { "answer_id": "HSAP-B-004", "score": 0.7439034581184387, "sibling_score": 0.7439034581184387, "answer_score": null, "sibling_qid": "KOC-2024-06-1843-Q009", "sibling_text": "heleshaw pump overhaul paul propeller material nickel aluminium bronze centrifugal pump impeller and wear ring material", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Hele-Shaw pump overhaul — procedure, control rods, tail and guide rods, spindle nut, materials", "cross_family": false }, { "answer_id": "WRG-004", "score": 0.7114243507385254, "sibling_score": 0.7114243507385254, "answer_score": 0.5078950345516204, "sibling_qid": "MUM-2026-05-3229-Q002", "sibling_text": "centrifugal pump wear ring worn out frequently reason", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Why wear rings wear, why they wear out frequently, and reusing an over-clearance ring with no spare on board", "cross_family": false } ] }, { "qid": "MUM-2026-06-3527-Q010", "text": "Type of bilge pump (my was Centrifugal pump. He told it can't be i told i? have seen and overhauled. Added that priming arrangement was there one? 9.ship eductor system and one ship water ring pump)?", "family": "Steering Gear & Hydraulics", "subtopic": "Frame System / Pump Type", "tid": "MUM-2026-06-3527", "tray": "review", "candidates": [ { "answer_id": "PCD-P04-01", "score": 0.6985083818435669, "sibling_score": 0.6985083818435669, "answer_score": 0.5670659661293029, "sibling_qid": "MUM-2026-07-3782-Q009", "sibling_text": "bilge pump type why centrifugal pump not used", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "01. Bilge pump — type, why not centrifugal, and the suction valve chest", "cross_family": true }, { "answer_id": "PCD-P04-04", "score": 0.6543223261833191, "sibling_score": 0.6543223261833191, "answer_score": 0.508142477273941, "sibling_qid": "KOL-2020-01-1515-Q002", "sibling_text": "reciprocating pump defects bilge pump", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "04. Bilge / reciprocating pump overhaul — checks, valves and piston-ring wear", "cross_family": true }, { "answer_id": "OWS-ORB-005", "score": 0.6500110626220703, "sibling_score": 0.6500110626220703, "answer_score": 0.524318665266037, "sibling_qid": "KOL-2025-01-3736-Q006", "sibling_text": "oily bilge pump broken can we use centrifugal pump for ows", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "5. Oily bilge pump broken — can a centrifugal pump be used for the OWS?", "cross_family": true } ] }, { "qid": "MUM-2026-06-3527-Q011", "text": "How many valves in bilge system ( 3 valves)?", "family": "Pumps - Centrifugal & PD", "subtopic": "Positive Displacement Pump", "tid": "MUM-2026-06-3527", "tray": "review", "candidates": [ { "answer_id": "PCD-P04-01", "score": 0.6994841694831848, "sibling_score": 0.6994841694831848, "answer_score": null, "sibling_qid": "MUM-2025-11-2871-Q006", "sibling_text": "5 valves on bilge pump", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "01. Bilge pump — type, why not centrifugal, and the suction valve chest", "cross_family": false }, { "answer_id": "PCD-P04-05", "score": 0.5722009539604187, "sibling_score": 0.5722009539604187, "answer_score": null, "sibling_qid": "KOC-2025-08-1936-Q001", "sibling_text": "reciprocating bilge pump valves explain", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "05. Reciprocating pump — construction, working and how you know it is discharging", "cross_family": false }, { "answer_id": "PCD-P04-02", "score": 0.5465164184570312, "sibling_score": 0.5465164184570312, "answer_score": 0.4196320027112961, "sibling_qid": "KOL-2025-09-1087-Q009", "sibling_text": "emergency bilge injection valve", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "02. Emergency bilge suction — the bilge injection valve, testing and SOLAS requirements", "cross_family": false } ] }, { "qid": "MUM-2026-06-3530-Q006", "text": "Fund security ?", "family": "ISPS", "subtopic": "ISPS Code / Security Level", "tid": "MUM-2026-06-3530", "tray": "new", "candidates": [ { "answer_id": "CLC-CIV-A-004", "score": 0.5499465465545654, "sibling_score": 0.5499465465545654, "answer_score": null, "sibling_qid": "MUM-2026-03-0826-Q003", "sibling_text": "financial security certification", "sibling_family": "MLC", "via": "sibling", "answer_title": "CLC certificate, blue card and certificate of financial security", "cross_family": true }, { "answer_id": "CLC-CIV-A-005", "score": 0.5344130992889404, "sibling_score": 0.5344130992889404, "answer_score": null, "sibling_qid": "KOC-2024-02-0296-Q006", "sibling_text": "fund convention", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Fund Convention — IOPC and the Supplementary Fund", "cross_family": true }, { "answer_id": "CLC-CIV-A-006", "score": 0.5165830850601196, "sibling_score": 0.5165830850601196, "answer_score": null, "sibling_qid": "KOC-2026-05-0036-Q003", "sibling_text": "clc fund", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Difference between CLC, the Fund and the Supplementary Fund", "cross_family": true } ] }, { "qid": "MUM-2026-06-3531-Q004", "text": "what value it will take and material", "family": "Electrical - ICCP & Cathodic Protection", "subtopic": "", "tid": "MUM-2026-06-3531", "tray": "new", "candidates": [ { "answer_id": "BUNK-SAMP-004", "score": 0.54563307762146, "sibling_score": 0.54563307762146, "answer_score": null, "sibling_qid": "KOC-2025-02-2060-Q017", "sibling_text": "material", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Sample container, material, quantity, marking and bottles", "cross_family": true }, { "answer_id": "ICCP-P02-001", "score": 0.4592496156692505, "sibling_score": 0.4592496156692505, "answer_score": null, "sibling_qid": "MUM-2026-01-1904-Q002", "sibling_text": "iccp reference cell what value it will take and material fitting protective anode material", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP reference cell / reference electrode — purpose, material, location, selection", "cross_family": false }, { "answer_id": "MGPS-003", "score": 0.45562565326690674, "sibling_score": 0.45562565326690674, "answer_score": null, "sibling_qid": "MUM-2026-02-1982-Q006", "sibling_text": "how much is reference value and mgps value and what factors will it depends", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "MGPS electrical values — current, voltage / reference value, and the factors affecting them", "cross_family": false } ] }, { "qid": "MUM-2026-06-3531-Q010", "text": "⁠Thyrister and IGBT diff ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "PLC", "tid": "MUM-2026-06-3531", "tray": "review", "candidates": [ { "answer_id": "SCR-306-B-001", "score": 0.7446398138999939, "sibling_score": 0.7446398138999939, "answer_score": null, "sibling_qid": "MUM-2026-01-1904-Q008", "sibling_text": "thyristor and igbt difference", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Thyristor / SCR vs other semiconductor devices", "cross_family": false }, { "answer_id": "TCAP-B-012", "score": 0.7101051807403564, "sibling_score": 0.7101051807403564, "answer_score": 0.615767902135849, "sibling_qid": "KOL-2023-06-2663-Q008", "sibling_text": "what is igbt why we use in place of thyristors", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "IGBT — construction, why it replaced the thyristor, and the difference from an IGCT", "cross_family": false }, { "answer_id": "MIB-B-002", "score": 0.6915017366409302, "sibling_score": 0.6915017366409302, "answer_score": 0.5822764486074448, "sibling_qid": "MUM-2026-01-1894-Q002", "sibling_text": "igbt mosfet and difference", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Comparing IGBT, MOSFET, BJT and the thyristor family (SCR/GTO)", "cross_family": false } ] }, { "qid": "MUM-2026-06-3533-Q001", "text": "Functions appearing for?", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-06-3533", "tray": "new", "candidates": [ { "answer_id": "IMO-CODES-P03-002", "score": 0.5788037776947021, "sibling_score": 0.5788037776947021, "answer_score": null, "sibling_qid": "MUM-2026-03-0815-Q003", "sibling_text": "which function", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": true }, { "answer_id": "CHK-RM-001", "score": 0.5330312252044678, "sibling_score": 0.5330312252044678, "answer_score": null, "sibling_qid": "KOL-2022-04-1918-Q004", "sibling_text": "chocks function types", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What are chocks? Function, types, where fitted and how placed — which have the biggest area, and how does the bedplate connect to the hull?", "cross_family": true }, { "answer_id": "SEEMP-123-B-001", "score": 0.5191493034362793, "sibling_score": 0.5191493034362793, "answer_score": null, "sibling_qid": "KOC-2026-03-0880-Q002", "sibling_text": "function 3 contents", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SEEMP Part III — the ship's operational carbon-intensity (CII) plan", "cross_family": true } ] }, { "qid": "MUM-2026-06-3533-Q002", "text": "Status of other functions?", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-06-3533", "tray": "new", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.5268857479095459, "sibling_score": 0.5268857479095459, "answer_score": null, "sibling_qid": "MUM-2026-05-3187-Q001", "sibling_text": "status of other orals and written", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": true }, { "answer_id": "IMO-CODES-P03-002", "score": 0.5128918290138245, "sibling_score": 0.5128918290138245, "answer_score": null, "sibling_qid": "MUM-2026-03-0815-Q003", "sibling_text": "which function", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": true }, { "answer_id": "AVR-EXC-B-001", "score": 0.5099712610244751, "sibling_score": 0.5099712610244751, "answer_score": null, "sibling_qid": "KOC-2025-12-1676-Q004", "sibling_text": "explain status avr", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Explain the AVR working principle and control-loop operation.", "cross_family": true } ] }, { "qid": "MUM-2026-06-3533-Q003", "text": "Type of vessel?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-06-3533", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8505485653877258, "sibling_score": 0.8505485653877258, "answer_score": null, "sibling_qid": "MUM-2026-06-3384-Q001", "sibling_text": "type of vessel", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.7767617702484131, "sibling_score": 0.7767617702484131, "answer_score": null, "sibling_qid": "CHE-2026-02-0481-Q001", "sibling_text": "type of vessels sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7698792219161987, "sibling_score": 0.7698792219161987, "answer_score": 0.5227487415075301, "sibling_qid": "CHE-2026-02-0109-Q001", "sibling_text": "type of ship explain what type is your vessel explain their type and difference", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "MUM-2026-06-3536-Q001", "text": "which part has more thickness in liner top or bottom, how cooling is done ?", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "MUM-2026-06-3536", "tray": "new", "candidates": [ { "answer_id": "CYL-LINER-P01-001", "score": 0.535375714302063, "sibling_score": 0.535375714302063, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001S4", "sibling_text": "liner cooling liner calibration", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Carrying out main-engine liner calibration (gauging)", "cross_family": false }, { "answer_id": "CYL-LINER-P04-007", "score": 0.5046432614326477, "sibling_score": 0.5046432614326477, "answer_score": 0.3312673896551132, "sibling_qid": "MUM-2025-11-2866-Q010", "sibling_text": "latest developments in cyl liner he wants to here insulated mid section for reduce cooling effect to prevent moisture", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Latest developments — cold-corrosion control & the “insulated” liner", "cross_family": false }, { "answer_id": "CYL-LINER-P04-001", "score": 0.48671218752861023, "sibling_score": 0.48671218752861023, "answer_score": 0.3621873944997787, "sibling_qid": "MUM-2021-02-1009-Q004", "sibling_text": "temperatures across liner length", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Temperature variation along the liner length", "cross_family": false } ] }, { "qid": "MUM-2026-06-3536-Q002", "text": "bore cooling ?", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "MUM-2026-06-3536", "tray": "new", "candidates": [ { "answer_id": "PC-TP-003", "score": 0.6037057042121887, "sibling_score": 0.6037057042121887, "answer_score": 0.444113278388977, "sibling_qid": "KOC-2023-07-0925-Q009", "sibling_text": "how piston crown cooling taking place lube circuit from telescopic pipe where it return back", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston crown cooling oil circuit and where the oil returns", "cross_family": false }, { "answer_id": "CYL-LINER-P01-001", "score": 0.6001868844032288, "sibling_score": 0.6001868844032288, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001S4", "sibling_text": "liner cooling liner calibration", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Carrying out main-engine liner calibration (gauging)", "cross_family": false }, { "answer_id": "PIST-CSI-A-002", "score": 0.5844951868057251, "sibling_score": 0.5844951868057251, "answer_score": null, "sibling_qid": "CHE-2025-08-0190-Q002", "sibling_text": "type of piston type of cooling", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "2-stroke piston: parts, cooling arrangement and operating stresses", "cross_family": false } ] }, { "qid": "MUM-2026-06-3537-Q001", "text": "What testing are done in shop trials?", "family": "Electrical - Motors & Starters", "subtopic": "IR Test / Insulation Resistance", "tid": "MUM-2026-06-3537", "tray": "new", "candidates": [ { "answer_id": "IND-MOT-A-001", "score": 0.4976500868797302, "sibling_score": 0.4976500868797302, "answer_score": null, "sibling_qid": "MUM-2024-02-1423-Q002", "sibling_text": "tests carried out on motors", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "1. Working principle of a three-phase induction motor", "cross_family": false }, { "answer_id": "ETP-344-P01-008", "score": 0.49752938747406006, "sibling_score": 0.49752938747406006, "answer_score": 0.37757950723171235, "sibling_qid": "MUM-2026-02-1261-Q004", "sibling_text": "difference between sea trial and shop test trial", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Verifying power — shop test, test bed, sea trial", "cross_family": true }, { "answer_id": "PI-211-004", "score": 0.49525704979896545, "sibling_score": 0.49525704979896545, "answer_score": null, "sibling_qid": "KOL-2024-03-2702-Q005", "sibling_text": "pi test and dar test", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "PI and DAR — how they relate, their purpose, and acceptable values", "cross_family": false } ] }, { "qid": "MUM-2026-06-3537-Q002", "text": "What type of ship in manned and unmanned condition. Unmanned condition SOLAS rules?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-06-3537", "tray": "new", "candidates": [ { "answer_id": "UMS-310-001", "score": 0.6091563701629639, "sibling_score": 0.6091563701629639, "answer_score": 0.5561027437448501, "sibling_qid": "MUM-2026-06-3410-Q005", "sibling_text": "solas regulations of unmanned engine room", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "What is a UMS ship and what does SOLAS require? (Part E, regs 46–53)", "cross_family": true }, { "answer_id": "ANCH-C-006", "score": 0.572426974773407, "sibling_score": 0.572426974773407, "answer_score": null, "sibling_qid": "MUM-2026-06-3459-Q001", "sibling_text": "type of ship sail and status of other function", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "BCME-002", "score": 0.5535860061645508, "sibling_score": 0.5535860061645508, "answer_score": 0.4599535644054413, "sibling_qid": "KOC-2024-11-0464-Q008", "sibling_text": "remote operation of propulsion machinery solas requirement", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "SOLAS requirements for remote control of propulsion machinery from the bridge", "cross_family": true } ] }, { "qid": "MUM-2026-06-3537-Q003", "text": "What type of iso fuels are used on board ? ", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Transformer Theory", "tid": "MUM-2026-06-3537", "tray": "new", "candidates": [ { "answer_id": "FQCC-583-A-002", "score": 0.6190358996391296, "sibling_score": 0.6190358996391296, "answer_score": null, "sibling_qid": "MUM-2022-10-0055-Q002", "sibling_text": "bunker fuel under which iso", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "ISO 8217 — the standard, and what changed from 2017 to 2024", "cross_family": true }, { "answer_id": "AV6-P01-05", "score": 0.5137062072753906, "sibling_score": 0.5137062072753906, "answer_score": null, "sibling_qid": "MUM-2024-10-0964-Q005", "sibling_text": "iso 8217 17 comparison with iso 8217 2024 apart from fame tell other fuels wanted to hear about sng", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Compare ISO 8217:2017 with ISO 8217:2024, including the FAME and newer-fuel categories the examiner asks about.", "cross_family": true }, { "answer_id": "ALT-FUEL-002", "score": 0.5104273557662964, "sibling_score": 0.5104273557662964, "answer_score": null, "sibling_qid": "MUM-2026-06-3494-Q003", "sibling_text": "methanol fuel", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is methanol as a marine fuel, and what are its advantages and disadvantages?", "cross_family": true } ] }, { "qid": "MUM-2026-06-3537-Q004", "text": "How fame is produced? Reaction?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Bio Fuel / Methanol / Ammonia", "tid": "MUM-2026-06-3537", "tray": "new", "candidates": [ { "answer_id": "AV6-P03-02", "score": 0.37850135564804077, "sibling_score": 0.37850135564804077, "answer_score": null, "sibling_qid": "MUM-2026-09-3912-Q007", "sibling_text": "scr and its chemical reaction gave all answers", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SCR for marine NOx control — meaning, working principle, chemistry and system components", "cross_family": true }, { "answer_id": "SIH-FIRE-003", "score": 0.36832231283187866, "sibling_score": 0.36832231283187866, "answer_score": 0.2867746144533157, "sibling_qid": "KOL-2017-08-1322-Q005", "sibling_text": "iron fire dont tell me the temp tell the chemical reactions", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Iron fire — what are the chemical reactions involved?", "cross_family": true }, { "answer_id": "FQCC-583-A-004", "score": 0.36561891436576843, "sibling_score": 0.36561891436576843, "answer_score": 0.31997708082199094, "sibling_qid": "MUM-2025-12-0616-Q001", "sibling_text": "fame test", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "FAME — what it is, why it is blended, and the limits", "cross_family": false } ] }, { "qid": "MUM-2026-06-3537-Q008", "text": "What is droop?", "family": "Automation & Controls", "subtopic": "Droop", "tid": "MUM-2026-06-3537", "tray": "new", "candidates": [ { "answer_id": "DROOP-001", "score": 0.5587679743766785, "sibling_score": 0.5587679743766785, "answer_score": 0.3015769988298416, "sibling_qid": "MUM-2026-07-3817-Q011", "sibling_text": "gov droop", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Governor / speed droop — what, why, setting and formula", "cross_family": false }, { "answer_id": "DROOP-002", "score": 0.5134211778640747, "sibling_score": 0.5134211778640747, "answer_score": null, "sibling_qid": "KOL-2022-10-1925-Q003", "sibling_text": "droop characteristics", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Speed-droop characteristic — the curve and what it shows", "cross_family": false }, { "answer_id": "AVRD-618-001", "score": 0.5042197704315186, "sibling_score": 0.5042197704315186, "answer_score": null, "sibling_qid": "CHE-2026-09-3928-Q007", "sibling_text": "avr droop", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "What is AVR droop, and why is it required?", "cross_family": true } ] }, { "qid": "MUM-2026-06-3537-Q009", "text": "What are the hunting reasons in generator?", "family": "Automation & Controls", "subtopic": "Governor (Mechanical / Electronic)", "tid": "MUM-2026-06-3537", "tray": "new", "candidates": [ { "answer_id": "GOV-P03-003", "score": 0.5655301213264465, "sibling_score": 0.5655301213264465, "answer_score": 0.3090487405657768, "sibling_qid": "KOL-2022-05-3538-Q003", "sibling_text": "ae hunting reasons and how to rectify", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Hunting, RPM fluctuation and troubleshooting", "cross_family": false }, { "answer_id": "STEER-055-A-003", "score": 0.5227763652801514, "sibling_score": 0.5227763652801514, "answer_score": null, "sibling_qid": "KOL-2021-10-0558-Q008", "sibling_text": "hunting in steering gear reasons", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Hunting gear, floating lever and buffer spring", "cross_family": true }, { "answer_id": "AE-GOV-005", "score": 0.4567643105983734, "sibling_score": 0.4567643105983734, "answer_score": 0.3227013066411018, "sibling_qid": "MUM-2026-07-3772-Q003", "sibling_text": "hunting of governor", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "5. Governor hunting — causes and rectification", "cross_family": false } ] }, { "qid": "MUM-2026-06-3537-Q010", "text": "Elaborate FAME ?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Bio Fuel / Methanol / Ammonia", "tid": "MUM-2026-06-3537", "tray": "new", "candidates": [ { "answer_id": "BIO-FUEL-005", "score": 0.5556962490081787, "sibling_score": 0.5556962490081787, "answer_score": null, "sibling_qid": "MUM-2026-01-0674-Q008", "sibling_text": "what is fame", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Biofuel and FAME as marine fuel", "cross_family": false }, { "answer_id": "EFBF-330-004", "score": 0.5555651783943176, "sibling_score": 0.5555651783943176, "answer_score": 0.1605668820440769, "sibling_qid": "MUM-2026-07-3684-Q003", "sibling_text": "what is fame", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "What is FAME?", "cross_family": false }, { "answer_id": "FQCC-583-A-004", "score": 0.5552270412445068, "sibling_score": 0.5552270412445068, "answer_score": 0.16551258265972138, "sibling_qid": "MUM-2026-06-3392-Q001", "sibling_text": "what is fame", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "FAME — what it is, why it is blended, and the limits", "cross_family": false } ] }, { "qid": "MUM-2026-06-3538-Q003", "text": "What all trips you will isolate for boiler hydraulic testing ?", "family": "Boilers - Safety & Survey", "subtopic": "Hydrostatic Test", "tid": "MUM-2026-06-3538", "tray": "review", "candidates": [ { "answer_id": "BLR-ALM-006", "score": 0.7041601538658142, "sibling_score": 0.7041601538658142, "answer_score": 0.5309153646230698, "sibling_qid": "CHE-2026-04-0260-Q007", "sibling_text": "what are all trips in boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler trips — what are all the trips in a boiler?", "cross_family": true }, { "answer_id": "HYD-602-001", "score": 0.6850360035896301, "sibling_score": 0.6850360035896301, "answer_score": 0.503164541721344, "sibling_qid": "KOL-2025-03-3752-Q003", "sibling_text": "aux boiler hydraulic testing", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Explain the boiler hydraulic / hydrostatic pressure test in detail — the full procedure", "cross_family": false }, { "answer_id": "BLR-SURV-P02-004", "score": 0.6843324899673462, "sibling_score": 0.6843324899673462, "answer_score": null, "sibling_qid": "KOL-2022-03-3529-Q003", "sibling_text": "boiler hydraulic test procedure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "MUM-2026-06-3538-Q004", "text": "Type of engine ?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-06-3538", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.8005982041358948, "sibling_score": 0.8005982041358948, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.7929896712303162, "sibling_score": 0.7929896712303162, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-001", "score": 0.45245428681373595, "sibling_score": null, "answer_score": 0.45245428681373595, "sibling_qid": "", "sibling_text": "1 turbocharger type main engine vs generator engine compressor is centrifugal in both cases only the turbine type differs large slow speed main engine axial flow turbine single stage constant pressure system", "sibling_family": "", "via": "answer_title", "answer_title": "1. Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "MUM-2026-06-3538-Q007", "text": "VGT ? Working? Attachment working?", "family": "SOLAS - Fire Safety", "subtopic": "Cargo Hold Fire", "tid": "MUM-2026-06-3538", "tray": "new", "candidates": [ { "answer_id": "VIT-MECH-A-002", "score": 0.5505141019821167, "sibling_score": 0.5505141019821167, "answer_score": null, "sibling_qid": "CHE-2026-04-0257-Q003", "sibling_text": "vit working", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How VIT works — varying the start of injection on the fuel pump", "cross_family": true }, { "answer_id": "VTA-TC-001", "score": 0.499026894569397, "sibling_score": 0.499026894569397, "answer_score": 0.3051848292350769, "sibling_qid": "KOL-2026-04-2057-Q002", "sibling_text": "vgt explain", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "What VTA / VGT is and how it works", "cross_family": true }, { "answer_id": "EPC-P03-008", "score": 0.48382481932640076, "sibling_score": 0.48382481932640076, "answer_score": null, "sibling_qid": "KOL-2019-10-2338-Q001", "sibling_text": "wattter working operation ct vt working", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "How does a wattmeter work — current coil and voltage coil; how does the disc rotate in the household energy meter; and what do the CT and VT do?", "cross_family": true } ] }, { "qid": "MUM-2026-06-3539-Q001", "text": "SOLAS chapter-8?", "family": "Other Conventions", "subtopic": "Polar Code", "tid": "MUM-2026-06-3539", "tray": "review", "candidates": [ { "answer_id": "SOLAS-OVW-009", "score": 0.7241532802581787, "sibling_score": 0.7241532802581787, "answer_score": null, "sibling_qid": "MUM-2026-06-3562-Q003", "sibling_text": "solas chapter 8", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "SOLAS Chapter IX — ISM Code (safe operation)", "cross_family": false }, { "answer_id": "SOLAS-CH-015", "score": 0.6038200855255127, "sibling_score": 0.6038200855255127, "answer_score": 0.3410732954740524, "sibling_qid": "MUM-2026-02-0752-Q007", "sibling_text": "solas all chapters 8 3 4 more", "sibling_family": "SOLAS - General (HOLD)", "via": "sibling", "answer_title": "SOLAS chapters overview - current count and scope", "cross_family": true }, { "answer_id": "SOLAS-OVW-008", "score": 0.5954458713531494, "sibling_score": 0.5954458713531494, "answer_score": null, "sibling_qid": "MUM-2026-04-0915-Q004", "sibling_text": "solas chapter 7 8", "sibling_family": "SOLAS - General (HOLD)", "via": "sibling", "answer_title": "SOLAS Chapter VII — carriage of dangerous goods", "cross_family": true } ] }, { "qid": "MUM-2026-06-3541-Q001", "text": "what restrictions by SOLAS to carry steel coils ?", "family": "Cargo Ops - Bulk Carriers", "subtopic": "IMSBC / TML", "tid": "MUM-2026-06-3541", "tray": "review", "candidates": [ { "answer_id": "BC-IMSBC-011", "score": 0.8285182118415833, "sibling_score": 0.8285182118415833, "answer_score": 0.5107748240232467, "sibling_qid": "MUM-2026-04-0906-Q002", "sibling_text": "what restrictions by solas to carry steel coils", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "11. Restrictions on carrying steel coils in bulk", "cross_family": false }, { "answer_id": "IMSBC-BULK-001", "score": 0.487890362739563, "sibling_score": 0.487890362739563, "answer_score": null, "sibling_qid": "MUM-2024-04-0172-Q002", "sibling_text": "precautions if coal loaded in holds", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Coal: spontaneous combustion, self-heating and methane", "cross_family": false }, { "answer_id": "IMSBC-TML-001", "score": 0.4716298580169678, "sibling_score": 0.4716298580169678, "answer_score": null, "sibling_qid": "KOC-2022-07-0079-Q022", "sibling_text": "iron ore carriage special requirements", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "01. IMSBC precautions and TML / moisture safety for moisture-sensitive bulk cargoes (bauxite, iron ore)", "cross_family": false } ] }, { "qid": "MUM-2026-06-3541-Q005", "text": "How to release?", "family": "SOLAS - Fire Safety", "subtopic": "CO2 System", "tid": "MUM-2026-06-3541", "tray": "new", "candidates": [ { "answer_id": "CO2-SYS-003", "score": 0.6362764835357666, "sibling_score": 0.6362764835357666, "answer_score": null, "sibling_qid": "MUM-2026-04-0906-Q006", "sibling_text": "how to relase", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 system — use decisions, suitability and post-release checks", "cross_family": false }, { "answer_id": "DRG-583-A-001", "score": 0.5185970664024353, "sibling_score": 0.5185970664024353, "answer_score": null, "sibling_qid": "KOL-2021-08-2477-Q007", "sibling_text": "onload release mechanism", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "On-load and off-load release: what each one is, and why both are fitted", "cross_family": true }, { "answer_id": "MOB-MKR-003", "score": 0.483271062374115, "sibling_score": 0.483271062374115, "answer_score": 0.33813749700784684, "sibling_qid": "KOL-2016-05-0002-Q004", "sibling_text": "mob marker everything how to release it", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "How do you release and operate the MOB marker, and what is attached to it?", "cross_family": true } ] }, { "qid": "MUM-2026-06-3544-Q003", "text": "CRGO meaning ?", "family": "Electrical - Motors & Starters", "subtopic": "IP Rating / Enclosure", "tid": "MUM-2026-06-3544", "tray": "new", "candidates": [ { "answer_id": "OTH-CONV-002", "score": 0.40094876289367676, "sibling_score": 0.40094876289367676, "answer_score": null, "sibling_qid": "KOL-2026-07-4287-Q001", "sibling_text": "colreg full form", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "COLREG — full form, number of rules, parts and contents", "cross_family": true }, { "answer_id": "CO2-SYS-003", "score": 0.3988053798675537, "sibling_score": 0.3988053798675537, "answer_score": null, "sibling_qid": "KOC-2025-07-0633-Q039", "sibling_text": "fixed sys for corgo area", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 system — use decisions, suitability and post-release checks", "cross_family": true }, { "answer_id": "WIND-CRN-P01-002", "score": 0.39102602005004883, "sibling_score": 0.39102602005004883, "answer_score": null, "sibling_qid": "KOC-2025-05-1527-Q008", "sibling_text": "er crane ckt", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Crane motor power & control circuit (draw and explain)", "cross_family": false } ] }, { "qid": "MUM-2026-06-3544-Q006", "text": "How can ACB removed from MSB?", "family": "Electrical - Generator & Alternator", "subtopic": "Generator Hot / Trip", "tid": "MUM-2026-06-3544", "tray": "new", "candidates": [ { "answer_id": "CBKR-D-ISORACK-001", "score": 0.5098176598548889, "sibling_score": 0.5098176598548889, "answer_score": 0.2572020679712295, "sibling_qid": "MUM-2026-03-2012-Q009", "sibling_text": "how will you remove acb", "sibling_family": "", "via": "sibling", "answer_title": "How do you safely isolate, rack out, withdraw and prove dead an ACB/VCB before work?", "cross_family": false }, { "answer_id": "CB-ACBVCBSF6-E-001", "score": 0.4742059111595154, "sibling_score": 0.4742059111595154, "answer_score": null, "sibling_qid": "MUM-2026-02-1963-Q007", "sibling_text": "types of acb acb removal complete process", "sibling_family": "", "via": "sibling", "answer_title": "What are the common types of circuit breakers used onboard and where are ACB, MCB, MCCB, VCB and SF6 breakers applied?", "cross_family": false }, { "answer_id": "MSB-ESB-E-001", "score": 0.4617467522621155, "sibling_score": 0.4617467522621155, "answer_score": null, "sibling_qid": "KOC-2025-09-1577-Q009", "sibling_text": "msb safeties not acb safeties", "sibling_family": "", "via": "sibling", "answer_title": "What safeties, protection trips, relays and alarms are provided on the MSB / ESB, and how are they tested?", "cross_family": false } ] }, { "qid": "MUM-2026-06-3549-Q001", "text": "Type of ship, type of engine ?", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "MUM-2026-06-3549", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8387569785118103, "sibling_score": 0.8387569785118103, "answer_score": null, "sibling_qid": "MUM-2025-08-2357-Q001", "sibling_text": "type of ship type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.8133373260498047, "sibling_score": 0.8133373260498047, "answer_score": null, "sibling_qid": "MUM-2026-07-3668-Q004", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "AC-VE-001", "score": 0.7718603014945984, "sibling_score": 0.7718603014945984, "answer_score": null, "sibling_qid": "MUM-2026-01-2904-Q001", "sibling_text": "what type of ship engine power and nomenclature", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Volumetric efficiency: define it, and if it drops how do you improve it (with bumping clearance)?", "cross_family": false } ] }, { "qid": "MUM-2026-06-3550-Q002", "text": "Hazard 4.3 ?", "family": "Risk & Safety Management", "subtopic": "Risk Assessment / Management", "tid": "MUM-2026-06-3550", "tray": "new", "candidates": [ { "answer_id": "RISK-RA-D-001", "score": 0.5367314219474792, "sibling_score": 0.5367314219474792, "answer_score": null, "sibling_qid": "MUM-2026-02-2576-Q011", "sibling_text": "if consequences 3 likelihood 4 what is the risk value", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "RA-MGMT-A-001", "score": 0.514879047870636, "sibling_score": 0.514879047870636, "answer_score": 0.37270502746105194, "sibling_qid": "KOL-2024-07-3702-Q002", "sibling_text": "what is hazard", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "What is risk, what is hazard, and what is risk assessment?", "cross_family": false }, { "answer_id": "IGC-GAS-008", "score": 0.48716217279434204, "sibling_score": 0.48716217279434204, "answer_score": null, "sibling_qid": "KOC-2023-10-0224-Q004", "sibling_text": "4 fire potential on lng", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Cargo hazards and properties of liquefied gases", "cross_family": true } ] }, { "qid": "MUM-2026-06-3550-Q004", "text": "6203 specification of bearing ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Bearing Nomenclature", "tid": "MUM-2026-06-3550", "tray": "review", "candidates": [ { "answer_id": "BRG-NOM-001", "score": 0.7925531268119812, "sibling_score": 0.7925531268119812, "answer_score": 0.47474515736103057, "sibling_qid": "MUM-2025-06-2326-Q003", "sibling_text": "6203 bearing specifications", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bearing Numbers, Suffixes and What to State When Ordering", "cross_family": false }, { "answer_id": "INT-SHAFT-003", "score": 0.4603097319602966, "sibling_score": null, "answer_score": 0.4603097319602966, "sibling_qid": "", "sibling_text": "3 intermediate shaft bearings lubrication high temperature survey and load plummer block pedestal bearings white metal tin base babbitt lined lower half loaded ring splash lubrication loose oil ring picks oil from housing sump to journal top grooves distribute", "sibling_family": "", "via": "answer_title", "answer_title": "3. Intermediate-shaft bearings: lubrication, high temperature, survey and load", "cross_family": false }, { "answer_id": "WMAT-170-005", "score": 0.4518846213817596, "sibling_score": null, "answer_score": 0.4518846213817596, "sibling_qid": "", "sibling_text": "bearing bedding and seating contact assessment thick shell bedding blue the journal or housing fit read the transfer scrape high spots for even contact over the loaded arc thin shell seating no scraping verify clean housing bore full back contact correct crush nip and tang dowel location", "sibling_family": "", "via": "answer_title", "answer_title": "Bearing bedding and seating / contact assessment", "cross_family": false } ] }, { "qid": "MUM-2026-06-3550-Q007", "text": "Beach Mark on what test ?", "family": "Electrical - Motors & Starters", "subtopic": "Polarization Index", "tid": "MUM-2026-06-3550", "tray": "new", "candidates": [ { "answer_id": "BLT-339-001", "score": 0.4707067608833313, "sibling_score": 0.4707067608833313, "answer_score": null, "sibling_qid": "KOL-2023-10-3639-Q004", "sibling_text": "bunker line test", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Bunker Line Pressure Test — medium, pressure, holding, draining and records", "cross_family": true }, { "answer_id": "BUNK-SAMP-004", "score": 0.4696633815765381, "sibling_score": 0.4696633815765381, "answer_score": null, "sibling_qid": "KOC-2025-02-2060-Q024", "sibling_text": "marking", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Sample container, material, quantity, marking and bottles", "cross_family": true }, { "answer_id": "PI-211-004", "score": 0.46668052673339844, "sibling_score": 0.46668052673339844, "answer_score": null, "sibling_qid": "KOL-2023-03-2641-Q002", "sibling_text": "dar test", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "PI and DAR — how they relate, their purpose, and acceptable values", "cross_family": false } ] }, { "qid": "MUM-2026-06-3550-Q008", "text": "Section of boiler plate is sweating what are actions ? Plate renewal who? 9.will do welding?", "family": "Workshop & Welding", "subtopic": "Plate Welding 10/16mm", "tid": "MUM-2026-06-3550", "tray": "new", "candidates": [ { "answer_id": "BLR-TUBE-P02-002", "score": 0.5984313488006592, "sibling_score": 0.5984313488006592, "answer_score": null, "sibling_qid": "KOL-2021-11-3475-Q003", "sibling_text": "boiler tube leaking action how to do plugging i told plugged and welded he asked for another method as later cutting welding part can damage tubes", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Plugging a leaking boiler tube (temporary arrest)", "cross_family": true }, { "answer_id": "BLR-SURV-P01-001", "score": 0.5893003940582275, "sibling_score": 0.5893003940582275, "answer_score": null, "sibling_qid": "MUM-2022-07-0017-Q018", "sibling_text": "during boiler survey you found that one side of drum shell is extremely corroded actions how will ypu select the plate determine the composition checks to be conducted on the weld done", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": true }, { "answer_id": "PW-327-003", "score": 0.5809943675994873, "sibling_score": 0.5809943675994873, "answer_score": 0.4366254508495331, "sibling_qid": "MUM-2022-09-2145-Q010", "sibling_text": "if in drydock crack on shell plate welding action if no class surveyor available", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "3. Shell / deck plate repair and renewal in dry dock (class context)", "cross_family": false } ] }, { "qid": "MUM-2026-06-3550-Q011", "text": "AC unloader working?", "family": "Refrigeration & AC", "subtopic": "Capacity Control / Unloader", "tid": "MUM-2026-06-3550", "tray": "review", "candidates": [ { "answer_id": "CAP-CTRL-002", "score": 0.8032090067863464, "sibling_score": 0.8032090067863464, "answer_score": 0.31668248027563095, "sibling_qid": "KOC-2024-02-2042-Q006", "sibling_text": "ac unloader function", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "CG-002 · How the cylinder-unloader mechanism works", "cross_family": false }, { "answer_id": "UNL-330-002", "score": 0.6770204901695251, "sibling_score": 0.6770204901695251, "answer_score": null, "sibling_qid": "KOL-2021-10-3472-Q005", "sibling_text": "unloader working", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Explain the working of the main air compressor unloader.", "cross_family": true }, { "answer_id": "CAP-CTRL-004", "score": 0.6505869626998901, "sibling_score": 0.6505869626998901, "answer_score": 0.3444176733493805, "sibling_qid": "MUM-2026-04-2666-Q009", "sibling_text": "how unloader working in ac and if doesn t work what will do", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "CG-004 · Actions when the capacity control / unloader is not working", "cross_family": false } ] }, { "qid": "MUM-2026-06-3550-Q012", "text": "Double bottom pr testing ?", "family": "Cargo Ops - Tankers", "subtopic": "Cargo Tank Construction", "tid": "MUM-2026-06-3550", "tray": "new", "candidates": [ { "answer_id": "DBTB-A-001", "score": 0.5871204733848572, "sibling_score": 0.5871204733848572, "answer_score": 0.28876317441463467, "sibling_qid": "MUM-2026-05-3340-Q010", "sibling_text": "double bottom", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Double-bottom construction and the structural members fitted", "cross_family": false }, { "answer_id": "DBTB-A-002", "score": 0.5284155607223511, "sibling_score": 0.5284155607223511, "answer_score": null, "sibling_qid": "MUM-2026-08-3833-Q014", "sibling_text": "double bottom construction", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Double-bottom tanks: purpose, advantages, disadvantages and stability effect", "cross_family": false }, { "answer_id": "DB-TORBOX-B-002", "score": 0.4898648262023926, "sibling_score": 0.4898648262023926, "answer_score": 0.2932569652795792, "sibling_qid": "MUM-2026-02-0766-Q007S3", "sibling_text": "safeties of double bottom", "sibling_family": "", "via": "sibling", "answer_title": "Double-bottom tanks — safeties, requirements and regulations", "cross_family": false } ] }, { "qid": "MUM-2026-06-3550-Q013", "text": "Fatigues stress ?", "family": "NDT & Material Testing", "subtopic": "Stress / Strain", "tid": "MUM-2026-06-3550", "tray": "new", "candidates": [ { "answer_id": "CFF-P02-001", "score": 0.6428363919258118, "sibling_score": 0.6428363919258118, "answer_score": 0.45025005042552946, "sibling_qid": "MUM-2026-06-3417-Q007", "sibling_text": "fatigue stress and limit", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Fatigue failure — what it is and where it occurs", "cross_family": false }, { "answer_id": "CFF-P02-002", "score": 0.6308072805404663, "sibling_score": 0.6308072805404663, "answer_score": 0.4398123651742935, "sibling_qid": "KOL-2019-12-1879-Q004", "sibling_text": "sn curve uses fatigue stresses where onboard", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "The S-N curve and the endurance (fatigue) limit", "cross_family": false }, { "answer_id": "CFF-P02-003", "score": 0.4808041602373123, "sibling_score": null, "answer_score": 0.4808041602373123, "sibling_qid": "", "sibling_text": "low cycle and high cycle fatigue high cycle fatigue hcf low stress elastic n large broadly 10 4 up to 10 6 10 8 stress controlled the s n endurance limit regime basquin low cycle fatigue lcf high stress into plastic strain each cycle n small broadly 10 4 strain controlled coffin manson no endurance limit benefit", "sibling_family": "", "via": "answer_title", "answer_title": "Low-cycle and high-cycle fatigue", "cross_family": false } ] }, { "qid": "MUM-2026-06-3551-Q001", "text": "Name of company ? Type of engine ? last sail on ? ", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-06-3551", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.6856898069381714, "sibling_score": 0.6856898069381714, "answer_score": null, "sibling_qid": "MUM-2026-05-3248-Q001", "sibling_text": "introduction sea time company pre sea ship type engine type me", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.681997537612915, "sibling_score": 0.681997537612915, "answer_score": null, "sibling_qid": "MUM-2026-05-3164-Q001", "sibling_text": "last ship sailed main engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true }, { "answer_id": "ETP-344-P03-003", "score": 0.6707059144973755, "sibling_score": 0.6707059144973755, "answer_score": null, "sibling_qid": "KOC-2025-08-1938-Q005", "sibling_text": "last ship engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Engine nomenclature, layout, mark number and engine constant", "cross_family": true } ] }, { "qid": "MUM-2026-06-3552-Q001", "text": "Other function status?", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-06-3552", "tray": "new", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.538947582244873, "sibling_score": 0.538947582244873, "answer_score": null, "sibling_qid": "MUM-2026-05-3187-Q001", "sibling_text": "status of other orals and written", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": true }, { "answer_id": "ANCH-C-006", "score": 0.5372943878173828, "sibling_score": 0.5372943878173828, "answer_score": null, "sibling_qid": "MUM-2026-06-3459-Q001", "sibling_text": "type of ship sail and status of other function", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "AVR-EXC-B-001", "score": 0.5336557626724243, "sibling_score": 0.5336557626724243, "answer_score": null, "sibling_qid": "KOC-2025-12-1676-Q004", "sibling_text": "explain status avr", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Explain the AVR working principle and control-loop operation.", "cross_family": true } ] }, { "qid": "MUM-2026-06-3552-Q002", "text": "Name of the company, Type of ship sailed on?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-06-3552", "tray": "review", "candidates": [ { "answer_id": "LLST-AB-002", "score": 0.8085100054740906, "sibling_score": 0.8085100054740906, "answer_score": null, "sibling_qid": "KOC-2026-03-0850-Q001", "sibling_text": "type of ship company", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.7256913185119629, "sibling_score": 0.7256913185119629, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7251216769218445, "sibling_score": 0.7251216769218445, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false } ] }, { "qid": "MUM-2026-06-3552-Q006", "text": "What is FAME, what is biofuel?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Bio Fuel / Methanol / Ammonia", "tid": "MUM-2026-06-3552", "tray": "new", "candidates": [ { "answer_id": "BIO-FUEL-005", "score": 0.5781055390834808, "sibling_score": 0.5743457674980164, "answer_score": 0.5781055390834808, "sibling_qid": "KOL-2021-07-1598-Q006", "sibling_text": "what is biofuel how produced and obtained asked by internal", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "answer_title", "answer_title": "Biofuel and FAME as marine fuel", "cross_family": false }, { "answer_id": "EFBF-330-001", "score": 0.5648510456085205, "sibling_score": 0.5648510456085205, "answer_score": 0.4779102861881256, "sibling_qid": "MUM-2024-11-0965-Q004", "sibling_text": "what is bio fuel", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What are biofuel and e-fuel?", "cross_family": true }, { "answer_id": "FQCC-583-A-004", "score": 0.5446870923042297, "sibling_score": null, "answer_score": 0.5446870923042297, "sibling_qid": "", "sibling_text": "fame what it is why it is blended and the limits fame fatty acid methyl ester biodiesel made by transesterification of vegetable oil or animal fat with methanol glycerol is the by product 2017 df grades max 7 0 fame earlier editions 2010 2012 allowed only de minimis levels in residuals and prohibited fame blending", "sibling_family": "", "via": "answer_title", "answer_title": "FAME — what it is, why it is blended, and the limits", "cross_family": false } ] }, { "qid": "MUM-2026-06-3552-Q008", "text": "Boiler safety valve type on your vessel, what is lift of the valve on your ship? maximum allowable lift of the valve D/4. why it is D/4?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2026-06-3552", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.7184017300605774, "sibling_score": 0.7184017300605774, "answer_score": null, "sibling_qid": "MUM-2026-07-3737-Q004", "sibling_text": "boiler type safety valve type lift of safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-002", "score": 0.683527410030365, "sibling_score": 0.683527410030365, "answer_score": null, "sibling_qid": "KOL-2026-02-3922-Q005", "sibling_text": "what is lifting of safety valve tell only within 3 percent of designated set pressure nothing else", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Acceptance limits and durations — the accumulation limit, the maximum test periods, and the action if the limit is exceeded", "cross_family": false }, { "answer_id": "ACRV-005", "score": 0.6766920685768127, "sibling_score": 0.6766920685768127, "answer_score": null, "sibling_qid": "MUM-2026-06-3549-Q005", "sibling_text": "boiler safety valve maximum questions", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": false } ] }, { "qid": "MUM-2026-06-3553-Q001", "text": "How many attempts. What all subjects remain?", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-06-3553", "tray": "new", "candidates": [ { "answer_id": "CFF-P02-001", "score": 0.4438551664352417, "sibling_score": 0.4438551664352417, "answer_score": null, "sibling_qid": "KOL-2017-09-1324-Q005", "sibling_text": "fatigue failure lots of cross qst with all qst finally done with cl 2 thank you all for your support and best of luck for who r in que", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Fatigue failure — what it is and where it occurs", "cross_family": true }, { "answer_id": "NDT-METH-P01-001", "score": 0.41801273822784424, "sibling_score": 0.41801273822784424, "answer_score": null, "sibling_qid": "MUM-2026-03-2946-Q006", "sibling_text": "the best thing you can do is figure out which exams you can appear for whether single subjects pairs or all together it depends on your will and capability for me i appeared in pairs 2 writtens and 1 oral because i knew my capability it differs for everyone many attempt all 6 together as per my knowledge few pass all 6 some pass 4 5 some pass 1 3 and some failed all", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "NDT methods, NDT vs destructive testing, and onboard use", "cross_family": true }, { "answer_id": "MICR-001", "score": 0.40545743703842163, "sibling_score": 0.40545743703842163, "answer_score": null, "sibling_qid": "KOL-2016-05-2987-Q001", "sibling_text": "least count", "sibling_family": "Gauges & Tools", "via": "sibling", "answer_title": "Micrometer least count and reading principle", "cross_family": true } ] }, { "qid": "MUM-2026-06-3553-Q002", "text": "Engine model?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-06-3553", "tray": "review", "candidates": [ { "answer_id": "MIP-264-003", "score": 0.6734179854393005, "sibling_score": 0.6734179854393005, "answer_score": null, "sibling_qid": "MUM-2026-01-1248-Q002", "sibling_text": "engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Calculate engine power: IHP and BHP, and where each is measured", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.6609790921211243, "sibling_score": 0.6609790921211243, "answer_score": 0.43921296000480653, "sibling_qid": "MUM-2026-06-3390-Q001", "sibling_text": "type of engine model", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false }, { "answer_id": "ENG-NOM-006", "score": 0.6429746747016907, "sibling_score": 0.6429746747016907, "answer_score": null, "sibling_qid": "MUM-2026-07-3768-Q004", "sibling_text": "main engine specification", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Short-form asks: SMC-C, LMC, and ME vs MC quickly", "cross_family": false } ] }, { "qid": "MUM-2026-06-3553-Q006", "text": "New percentage value of allowed FAME?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Quality / CCAI", "tid": "MUM-2026-06-3553", "tray": "new", "candidates": [ { "answer_id": "FQCC-583-A-004", "score": 0.5854197144508362, "sibling_score": 0.5854197144508362, "answer_score": null, "sibling_qid": "MUM-2025-10-2443-Q009", "sibling_text": "max fame content allowed", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "FAME — what it is, why it is blended, and the limits", "cross_family": false }, { "answer_id": "VIT-MECH-B-002", "score": 0.4569012522697449, "sibling_score": 0.4569012522697449, "answer_score": null, "sibling_qid": "KOL-2017-08-1316-Q006", "sibling_text": "fqs setting adjustment", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How VIT is adjusted and set — timing and fuel-quality (FQS) interactions", "cross_family": false }, { "answer_id": "VIT-MECH-B-001", "score": 0.4435611963272095, "sibling_score": 0.4435611963272095, "answer_score": null, "sibling_qid": "KOL-2022-11-1718-Q005", "sibling_text": "why vit at 85 percent rao", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "The VIT / Super VIT curve — breakpoint, range and load-dependent advance/retard", "cross_family": false } ] }, { "qid": "MUM-2026-06-3554-Q005", "text": "value for voltage At which u will check ?", "family": "Electrical - Distribution & MSB", "subtopic": "Voltage System (440V / 690V / HV)", "tid": "MUM-2026-06-3554", "tray": "review", "candidates": [ { "answer_id": "VOLT-SYS-006", "score": 0.6600155830383301, "sibling_score": 0.6600155830383301, "answer_score": null, "sibling_qid": "CHE-2026-09-3936-Q012", "sibling_text": "undervoltage limit", "sibling_family": "Electrical - Distribution & MSB", "via": "sibling", "answer_title": "Undervoltage and the undervoltage trip", "cross_family": false }, { "answer_id": "VOLT-SYS-002", "score": 0.6376041769981384, "sibling_score": 0.6376041769981384, "answer_score": null, "sibling_qid": "MUM-2021-02-1323-Q001", "sibling_text": "what is voltage", "sibling_family": "Electrical - Distribution & MSB", "via": "sibling", "answer_title": "What voltage is, and voltage in a single wire versus three-phase", "cross_family": false }, { "answer_id": "VOLT-SYS-001", "score": 0.62007075548172, "sibling_score": 0.62007075548172, "answer_score": null, "sibling_qid": "CHE-2026-05-0537-Q007", "sibling_text": "what is total voltage", "sibling_family": "Electrical - Distribution & MSB", "via": "sibling", "answer_title": "Shipboard voltages and frequency in use", "cross_family": false } ] }, { "qid": "MUM-2026-06-3554-Q006", "text": "Scale reading ?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft Deflection", "tid": "MUM-2026-06-3554", "tray": "new", "candidates": [ { "answer_id": "CSD-BF036-004", "score": 0.47985023260116577, "sibling_score": 0.47985023260116577, "answer_score": null, "sibling_qid": "MUM-2023-06-2734-Q007", "sibling_text": "show deflection reading", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "How do you plot the deflection curve — what goes on each axis, what is the datum line, and how do you read it?", "cross_family": false }, { "answer_id": "RAC-HPLP-389-002", "score": 0.4536346197128296, "sibling_score": 0.4536346197128296, "answer_score": null, "sibling_qid": "MUM-2024-08-1457-Q004", "sibling_text": "lp cutout switch and scale number and adjusting screw in lp cutout", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "LP cutout — switch, scale and differential adjustment", "cross_family": true }, { "answer_id": "CSD-BF036-002", "score": 0.44558948278427124, "sibling_score": 0.44558948278427124, "answer_score": null, "sibling_qid": "KOL-2026-02-3920-Q004", "sibling_text": "trammel gauge how to take measurements 5", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "How do you take a crankshaft deflection — pre-checks, and instructing the 3/E?", "cross_family": false } ] }, { "qid": "MUM-2026-06-3555-Q003", "text": "How to check rudder efficiency?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "MUM-2026-06-3555", "tray": "new", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.6256520748138428, "sibling_score": 0.6256520748138428, "answer_score": 0.4047199308872223, "sibling_qid": "KOL-2021-03-1582-Q006", "sibling_text": "checks on rudder in dd", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "RES-PROP-P03-002", "score": 0.593269944190979, "sibling_score": 0.593269944190979, "answer_score": null, "sibling_qid": "MUM-2026-06-3564-Q004", "sibling_text": "rudder efficiency how to improve", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "2. Propulsive coefficients: QPC, hull/propeller/relative-rotative efficiency, wake, slip and propeller curves", "cross_family": true }, { "answer_id": "DUS-P5-05", "score": 0.4295314848423004, "sibling_score": null, "answer_score": 0.4295314848423004, "sibling_qid": "", "sibling_text": "rudder checks and rudder blade tightness leak test in drydock visual checks coating condition cavitation erosion on the blade leading edge propeller side face sacrificial anodes against the approved cathodic protection plan grounding continuity against the approved acceptance criterion plate and weld cracks pintle clearance measured with feeler the numerical acceptance limit is class specific and ", "sibling_family": "", "via": "answer_title", "answer_title": "Rudder checks and rudder-blade tightness/leak test in drydock", "cross_family": false } ] }, { "qid": "MUM-2026-06-3555-Q004", "text": "New design of rudder?", "family": "General Marine Engineering", "subtopic": "Shafting / Propeller / CPP", "tid": "MUM-2026-06-3555", "tray": "new", "candidates": [ { "answer_id": "SHAFT-CPP-005", "score": 0.5727986693382263, "sibling_score": 0.5727986693382263, "answer_score": null, "sibling_qid": "MUM-2024-04-0172-Q007", "sibling_text": "new design in propellers", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "5. Propeller types, design criteria & latest developments", "cross_family": false }, { "answer_id": "HULL-PAINT-002", "score": 0.5199507474899292, "sibling_score": 0.5199507474899292, "answer_score": null, "sibling_qid": "CHE-2026-02-0110-Q012", "sibling_text": "rudder internal painting", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Types of hull coating, the paint scheme by section, and why each is used", "cross_family": true }, { "answer_id": "RUD-DROP-001", "score": 0.5199507474899292, "sibling_score": 0.5199507474899292, "answer_score": null, "sibling_qid": "MUM-2026-05-3150-Q003", "sibling_text": "rudder internal painting", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": true } ] }, { "qid": "MUM-2026-06-3556-Q002", "text": "Which is better for low speed engines? VIT or Super VIT?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "VIT Mechanism", "tid": "MUM-2026-06-3556", "tray": "new", "candidates": [ { "answer_id": "VIT-MECH-C-001", "score": 0.6214664578437805, "sibling_score": 0.6214664578437805, "answer_score": null, "sibling_qid": "KOL-2026-01-4081-Q011", "sibling_text": "vit and super vit difference working he want to listen fuel econimcal word", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "MAN B&W MC VIT — varying the start of injection on a helix pump", "cross_family": false }, { "answer_id": "VIT-MECH-B-001", "score": 0.6015207171440125, "sibling_score": 0.6015207171440125, "answer_score": 0.42853750884532926, "sibling_qid": "KOL-2023-08-0765-Q007", "sibling_text": "difference between vit and super vit purpose of vit function of break point in both at what load vit works", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "The VIT / Super VIT curve — breakpoint, range and load-dependent advance/retard", "cross_family": false }, { "answer_id": "VIT-MECH-D-001", "score": 0.5989071130752563, "sibling_score": 0.5989071130752563, "answer_score": 0.42177569568157197, "sibling_qid": "KOL-2026-07-4284-Q001", "sibling_text": "super vit in electronic governor", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Super-VIT — construction and working (double-thread / upper-lower thread)", "cross_family": false } ] }, { "qid": "MUM-2026-06-3556-Q004", "text": "Which compressor is better? Tandam or rotary?", "family": "Air Compressor", "subtopic": "", "tid": "MUM-2026-06-3556", "tray": "new", "candidates": [ { "answer_id": "AC-STAGE-001", "score": 0.561591386795044, "sibling_score": 0.561591386795044, "answer_score": 0.3843532770872116, "sibling_qid": "KOL-2025-11-1825-Q004", "sibling_text": "working principle or two stage air compressor", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Why multistage compression — advantages over single-stage", "cross_family": false }, { "answer_id": "TC-CONST-005", "score": 0.5529228448867798, "sibling_score": 0.5529228448867798, "answer_score": null, "sibling_qid": "MUM-2025-06-2328-Q003", "sibling_text": "t c compressor", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Compressor/blower side components and air flow", "cross_family": true }, { "answer_id": "AC-VE-005", "score": 0.5397443771362305, "sibling_score": 0.5397443771362305, "answer_score": null, "sibling_qid": "KOC-2026-01-1993-Q030", "sibling_text": "what happens if less and more to compressor", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "If bumping clearance is more or less, what happens, and how do you reduce or adjust it?", "cross_family": false } ] }, { "qid": "MUM-2026-06-3557-Q005", "text": "Water coming out during blow through of generator reasons and actions what to do?", "family": "2-Stroke - Operations & Casualty", "subtopic": "Slow Turning vs Blow Through", "tid": "MUM-2026-06-3557", "tray": "new", "candidates": [ { "answer_id": "PIPEFAB-009", "score": 0.6245899796485901, "sibling_score": 0.6245899796485901, "answer_score": null, "sibling_qid": "MUM-2026-03-2600-Q003", "sibling_text": "running generator water leaking how will know", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "A seawater or fire line is leaking / thinned down — action as 2/E, valve not holding, no hot work possible", "cross_family": true }, { "answer_id": "SAV-003", "score": 0.5998178124427795, "sibling_score": 0.5998178124427795, "answer_score": null, "sibling_qid": "MUM-2026-02-2546-Q004", "sibling_text": "ae starting time water is coming from indicator cockw while blow through what action as 2e", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Action when a unit starting air valve leaks or the line goes red hot in manoeuvring", "cross_family": false }, { "answer_id": "CAS-ESTOP-001", "score": 0.5694327354431152, "sibling_score": 0.5694327354431152, "answer_score": null, "sibling_qid": "MUM-2024-09-2244-Q003", "sibling_text": "crack in main sea water line water flooded till tank top action as 2nd engineer", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Engine-room flooding / rapidly rising bilges — immediate action as 2/E", "cross_family": false } ] }, { "qid": "MUM-2026-06-3558-Q003", "text": "Alpha lubricator working. If sulphur percentage change in fuel what all actions taken by me b engine ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Alpha Lubricator", "tid": "MUM-2026-06-3558", "tray": "review", "candidates": [ { "answer_id": "CYL-LUB-B-004", "score": 0.684630811214447, "sibling_score": 0.684630811214447, "answer_score": null, "sibling_qid": "CHE-2025-08-0212-Q004", "sibling_text": "why liner lubrication depends on rpm and load dependent expecting more load more fuel more sulphur to neturalize so more injection", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Feed rate, over- and under-lubrication, sufficiency checks", "cross_family": false }, { "answer_id": "ALPHA-LUB-A-002", "score": 0.6833513379096985, "sibling_score": 0.6833513379096985, "answer_score": null, "sibling_qid": "KOC-2023-07-0925-Q011", "sibling_text": "8 diffrence between alpha lubricator and normal lubricator what happen to the cylinder lubrication you are increasing or decreasing the cyl lubrication with low sulpher requrement", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Advantages and comparison with conventional cylinder lubrication", "cross_family": false }, { "answer_id": "CYL-LUB-B-003", "score": 0.6800056099891663, "sibling_score": 0.6800056099891663, "answer_score": null, "sibling_qid": "MUM-2023-09-2747-Q004", "sibling_text": "wat to add in high sulphur lube oil", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "BN / TBN selection and sulphur matching (HSFO, VLSFO, SECA)", "cross_family": false } ] }, { "qid": "MUM-2026-06-3559-Q001", "text": "Type of ship, nomenclature ? ", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-06-3559", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.7853861451148987, "sibling_score": 0.7853861451148987, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7729688882827759, "sibling_score": 0.7729688882827759, "answer_score": 0.5371824443340302, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.7429947257041931, "sibling_score": 0.7429947257041931, "answer_score": 0.5263580918312073, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2026-06-3559-Q005", "text": "discharge pressure is high in refer all possible reasons ? ", "family": "Refrigeration & AC", "subtopic": "HP / LP Trip", "tid": "MUM-2026-06-3559", "tray": "review", "candidates": [ { "answer_id": "RAC-HPLP-389-001", "score": 0.694874107837677, "sibling_score": 0.694874107837677, "answer_score": null, "sibling_qid": "CHE-2026-02-0471-Q002", "sibling_text": "condenser high pressure reasons", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Refrigeration / AC compressor trips on high pressure — causes and checks", "cross_family": false }, { "answer_id": "REEF-COMP-001", "score": 0.6678944826126099, "sibling_score": 0.6678944826126099, "answer_score": null, "sibling_qid": "KOC-2024-07-1370-Q007", "sibling_text": "high pressure trip on refer compressor", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Reefer/AC compressor safeties and cut-outs — safety valve, HP and LP cut-outs", "cross_family": false }, { "answer_id": "BLR-STM-PR-B54-003", "score": 0.6355733275413513, "sibling_score": 0.6355733275413513, "answer_score": null, "sibling_qid": "KOL-2018-06-3152-Q006", "sibling_text": "high pressure cut out what are the reasons", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "The boiler high-pressure cut-out has operated — what makes it cut out", "cross_family": true } ] }, { "qid": "MUM-2026-06-3559-Q006", "text": "centrifugal pump why we start discharge v/v closed ? ", "family": "Pumps - Centrifugal & PD", "subtopic": "Pump Priming / Suction", "tid": "MUM-2026-06-3559", "tray": "new", "candidates": [ { "answer_id": "PPS-622-001", "score": 0.5912913680076599, "sibling_score": 0.5912913680076599, "answer_score": 0.44696727991104124, "sibling_qid": "CHE-2025-08-0414-Q001", "sibling_text": "how will you start centrifugal pump", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Why is priming needed in a centrifugal pump, when is a priming device required, why does a gear pump not need one, and how do you start a centrifugal pump?", "cross_family": false }, { "answer_id": "PUMP-CAS-002", "score": 0.5829291939735413, "sibling_score": 0.5829291939735413, "answer_score": null, "sibling_qid": "CHE-2026-04-0504-Q004", "sibling_text": "double voulte centrifugal pump where you get thrust and how the clearance you maintain if gone what will happen external shenoy internal wankadae", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "02. Double-volute casing — why it is used, which thrust it balances, and the clearance in question", "cross_family": false }, { "answer_id": "PCD-P01-05", "score": 0.5807605385780334, "sibling_score": 0.5807605385780334, "answer_score": 0.45221109986305236, "sibling_qid": "KOL-2025-03-3758-Q004", "sibling_text": "performance of a centrifugal pump too many cross questions i told him about shutting the discharge valve method want to listen specific method of calculating the head for the performance curve", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Checking centrifugal pump performance — head, flow and the MCSW check with M/E running", "cross_family": false } ] }, { "qid": "MUM-2026-06-3560-Q001", "text": "Discharge criteria for bulk ?", "family": "MARPOL - Annex V (Garbage)", "subtopic": "HME / Non-HME", "tid": "MUM-2026-06-3560", "tray": "new", "candidates": [ { "answer_id": "GARB-261-002", "score": 0.5759534239768982, "sibling_score": 0.5759534239768982, "answer_score": null, "sibling_qid": "KOL-2025-10-1108-Q002", "sibling_text": "annex v discharge criteria", "sibling_family": "MARPOL - Annex V (Garbage)", "via": "sibling", "answer_title": "Discharge criteria — inside vs outside special areas", "cross_family": false }, { "answer_id": "BWM-D1D2-P03-001", "score": 0.5726172924041748, "sibling_score": 0.5726172924041748, "answer_score": null, "sibling_qid": "MUM-2025-05-0290-Q005", "sibling_text": "bwm discharge criteria", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Regulation D-2 — ballast water performance / discharge standardHigh", "cross_family": true }, { "answer_id": "AII-DISCH-001", "score": 0.5526227951049805, "sibling_score": 0.5526227951049805, "answer_score": null, "sibling_qid": "KOC-2026-08-2121-Q001", "sibling_text": "discharge criteria for cargo space", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "State the MARPOL Annex II discharge criteria for NLS residues and tank washings", "cross_family": true } ] }, { "qid": "MUM-2026-06-3560-Q004", "text": "How rudder area is categorised ?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "MUM-2026-06-3560", "tray": "new", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.5917866826057434, "sibling_score": 0.5917866826057434, "answer_score": null, "sibling_qid": "KOC-2026-03-0879-Q004", "sibling_text": "rudder cross section", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "SPR-STERN-006", "score": 0.5706809163093567, "sibling_score": 0.5706809163093567, "answer_score": null, "sibling_qid": "MUM-2026-05-3201-Q001", "sibling_text": "type of rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Propeller types & special propulsors", "cross_family": false }, { "answer_id": "HULL-PAINT-002", "score": 0.5307803153991699, "sibling_score": 0.5307803153991699, "answer_score": null, "sibling_qid": "CHE-2026-02-0110-Q012", "sibling_text": "rudder internal painting", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Types of hull coating, the paint scheme by section, and why each is used", "cross_family": false } ] }, { "qid": "MUM-2026-06-3561-Q004", "text": "Corrosion margin ?", "family": "Ship Construction & Stability", "subtopic": "DEFINITION", "tid": "MUM-2026-06-3561", "tray": "review", "candidates": [ { "answer_id": "SUB-CORR-001", "score": 0.7956166863441467, "sibling_score": 0.7956166863441467, "answer_score": 0.5287831723690033, "sibling_qid": "MUM-2026-04-0917-Q004", "sibling_text": "corrosion margin", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "SUB-CORR-01 — What is substantial corrosion, and how is it identified against survey limits?", "cross_family": false }, { "answer_id": "ESP-B-002", "score": 0.6049559712409973, "sibling_score": 0.6049559712409973, "answer_score": null, "sibling_qid": "KOL-2026-02-1172-Q007", "sibling_text": "esp and substantial corrosion", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Close-up survey, thickness gauging, substantial corrosion & renewal criteria", "cross_family": true }, { "answer_id": "MATPROP-A-005", "score": 0.4631506621837616, "sibling_score": null, "answer_score": 0.4631506621837616, "sibling_qid": "", "sibling_text": "corrosion and degradation mechanisms crevice stagnant low oxygen gap an oxygen concentration differential aeration cell stress corrosion cracking tensile stress specific environment fine cracks little metal loss sudden", "sibling_family": "", "via": "answer_title", "answer_title": "Corrosion and degradation mechanisms", "cross_family": false } ] }, { "qid": "MUM-2026-06-3561-Q007", "text": "Action in case of grounding ?", "family": "Fault Diagnosis & 2/E Actions", "subtopic": "Fault Diagnosis / 2E Action", "tid": "MUM-2026-06-3561", "tray": "new", "candidates": [ { "answer_id": "DCG-004", "score": 0.44781947135925293, "sibling_score": 0.44781947135925293, "answer_score": null, "sibling_qid": "KOL-2025-08-1020-Q010", "sibling_text": "clear ground nc mnc action", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the relationship between clear grounds, NC and MNC, and what action follows?", "cross_family": true }, { "answer_id": "SGP-002", "score": 0.4377176761627197, "sibling_score": 0.4377176761627197, "answer_score": null, "sibling_qid": "KOL-2021-08-3453-Q002", "sibling_text": "grounded me inspection", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "What main-engine checks are required after grounding or before refloating?", "cross_family": true }, { "answer_id": "CAS-ESTOP-002", "score": 0.43530046939849854, "sibling_score": 0.43530046939849854, "answer_score": 0.35520179867744445, "sibling_qid": "KOL-2016-08-2999-Q003", "sibling_text": "what checks after grounding cleared function 6 harit", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Main-engine checks after grounding, before turning or a kick", "cross_family": true } ] }, { "qid": "MUM-2026-06-3562-Q001", "text": "Types or ship sailed and Status of other function", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-06-3562", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.7517048716545105, "sibling_score": 0.7517048716545105, "answer_score": null, "sibling_qid": "MUM-2026-06-3459-Q001", "sibling_text": "type of ship sail and status of other function", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.6954397559165955, "sibling_score": 0.6954397559165955, "answer_score": null, "sibling_qid": "CHE-2026-01-0101-Q001", "sibling_text": "types of ship done and exam status", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.6170685887336731, "sibling_score": 0.6170685887336731, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false } ] }, { "qid": "MUM-2026-06-3562-Q002", "text": "PSC come under what , what is code 17", "family": "Surveys - Statutory", "subtopic": "Detention / Clear Ground", "tid": "MUM-2026-06-3562", "tray": "new", "candidates": [ { "answer_id": "PSC-001", "score": 0.5609057545661926, "sibling_score": 0.5609057545661926, "answer_score": 0.3927081167697906, "sibling_qid": "MUM-2025-08-0378-Q007", "sibling_text": "what is psc", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "1. What is PSC, why it is required, and its legal basis and scope", "cross_family": false }, { "answer_id": "PSC-004", "score": 0.5426062345504761, "sibling_score": 0.5426062345504761, "answer_score": 0.3426065385341644, "sibling_qid": "MUM-2024-07-2766-Q006", "sibling_text": "what is pr 17", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "4. PSC documents: Form A, Form B, action codes, suspension and detention", "cross_family": false }, { "answer_id": "DCG-003", "score": 0.5357947945594788, "sibling_score": 0.5357947945594788, "answer_score": 0.34367957562208173, "sibling_qid": "KOL-2025-04-0931-Q009", "sibling_text": "psc deficiency code", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the PSC deficiency code, which code leads to a detainable deficiency, and can you give an example of a \"clear-ground code\"?", "cross_family": false } ] }, { "qid": "MUM-2026-06-3562-Q004", "text": "SOLAS chapter 11-1 and what all certificate under this 11-1 ?", "family": "Surveys - Statutory", "subtopic": "Certificates List", "tid": "MUM-2026-06-3562", "tray": "new", "candidates": [ { "answer_id": "SOLAS-CH-007", "score": 0.6024791598320007, "sibling_score": 0.6024791598320007, "answer_score": 0.4259856164455414, "sibling_qid": "MUM-2026-06-3477-Q004", "sibling_text": "certificates under solas chapter xi", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS Chapter IX - ISM Code and certificates", "cross_family": true }, { "answer_id": "CERT-LIST-P02-001", "score": 0.5921631455421448, "sibling_score": 0.5921631455421448, "answer_score": 0.39446962624788284, "sibling_qid": "KOC-2022-10-0102-Q013", "sibling_text": "solas certificates i knew the answer but was not able to give the exact names of certificates", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "SOLAS certificates carried onboard", "cross_family": false }, { "answer_id": "SOLAS-CH-016", "score": 0.5492273569107056, "sibling_score": 0.5492273569107056, "answer_score": 0.4376872658729553, "sibling_qid": "KOC-2023-11-0246-Q002", "sibling_text": "certificates under solas solas new ammendemnts solas chapters", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Codes and certificates under SOLAS", "cross_family": true } ] }, { "qid": "MUM-2026-06-3562-Q007", "text": "ISO:834", "family": "MARPOL - General & Compliance", "subtopic": "BDN / Bunker Delivery", "tid": "MUM-2026-06-3562", "tray": "new", "candidates": [ { "answer_id": "BDN-001-004", "score": 0.4716147184371948, "sibling_score": 0.4716147184371948, "answer_score": null, "sibling_qid": "CHE-2026-02-0118-Q008", "sibling_text": "iso 8217", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Fuel spec on the BDN — sulphur, ISO 8217, % m/m, ppm", "cross_family": false }, { "answer_id": "AV6-P01-01", "score": 0.44909951090812683, "sibling_score": 0.44909951090812683, "answer_score": null, "sibling_qid": "KOC-2026-02-0824-Q003", "sibling_text": "mepc 83", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Explain the latest Annex VI amendment or MEPC development, and state its date and status.", "cross_family": true }, { "answer_id": "WIDAS-SMK-007", "score": 0.44721391797065735, "sibling_score": 0.44721391797065735, "answer_score": null, "sibling_qid": "MUM-2026-03-0855-Q003", "sibling_text": "diff between iso ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Smoke sampling line — testing, confirming clear, and what is in the tube", "cross_family": true } ] }, { "qid": "MUM-2026-06-3562-Q010", "text": "Code 15150 (ISM and PSC related )", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "MUM-2026-06-3562", "tray": "new", "candidates": [ { "answer_id": "ISM-ELEM-002", "score": 0.5146870017051697, "sibling_score": 0.5146870017051697, "answer_score": null, "sibling_qid": "MUM-2026-08-3833-Q002", "sibling_text": "ism code", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the ISM Code?", "cross_family": false }, { "answer_id": "ISM-SMC-B-002", "score": 0.5037066340446472, "sibling_score": 0.5037066340446472, "answer_score": null, "sibling_qid": "KOC-2024-10-0426-Q006", "sibling_text": "ism code interim smc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Interim SMC — occasions, procedure and validity", "cross_family": false }, { "answer_id": "ISM-SMC-B-001", "score": 0.5008594393730164, "sibling_score": 0.5008594393730164, "answer_score": null, "sibling_qid": "KOC-2023-10-0228-Q011", "sibling_text": "ism code smc and doc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "SMC — purpose, contents, issue and validity", "cross_family": false } ] }, { "qid": "MUM-2026-06-3564-Q001", "text": "Chain locker checks ?", "family": "Auxiliary Equipment", "subtopic": "Chain Locker Entry", "tid": "MUM-2026-06-3564", "tray": "review", "candidates": [ { "answer_id": "ANCHR-B-004", "score": 0.6690940856933594, "sibling_score": 0.6690940856933594, "answer_score": null, "sibling_qid": "KOC-2026-04-0906-Q008", "sibling_text": "regulations regarding chain locker", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Chain locker, spurling pipe & bitter-end securing", "cross_family": false }, { "answer_id": "CHAIN-TENS-A-004", "score": 0.6676221489906311, "sibling_score": 0.6676221489906311, "answer_score": 0.41015389263629914, "sibling_qid": "MUM-2026-07-3842-Q005", "sibling_text": "chain locker inspection what all checks", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Chain-Case / Chain-Drive Inspection", "cross_family": false }, { "answer_id": "ANCHR-B-002", "score": 0.6113690733909607, "sibling_score": 0.6113690733909607, "answer_score": null, "sibling_qid": "MUM-2023-03-2166-Q004", "sibling_text": "anchor chain checks", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Anchor & cable survey in dry dock — the systematic inspection", "cross_family": false } ] }, { "qid": "MUM-2026-06-3565-Q005", "text": "Windlass oil seal change ?", "family": "Auxiliary Equipment", "subtopic": "Windlass / Winch", "tid": "MUM-2026-06-3565", "tray": "review", "candidates": [ { "answer_id": "WIND-WNCH-010", "score": 0.79633629322052, "sibling_score": 0.79633629322052, "answer_score": null, "sibling_qid": "MUM-2024-12-2263-Q001", "sibling_text": "how will you change the oil seal in windlass clueless", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Survey prep, checks, routines and maintenance", "cross_family": false }, { "answer_id": "WIND-WNCH-007", "score": 0.6435670852661133, "sibling_score": 0.6435670852661133, "answer_score": null, "sibling_qid": "MUM-2026-06-3555-Q007", "sibling_text": "how to change brake of windlass", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Brake lining renewal", "cross_family": false }, { "answer_id": "WBRT-005", "score": 0.6173657178878784, "sibling_score": 0.6173657178878784, "answer_score": null, "sibling_qid": "KOL-2021-08-1621-Q010", "sibling_text": "windlass brake maintenance", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Brake maintenance: lining, drum, pad fitting and adjustment", "cross_family": false } ] }, { "qid": "MUM-2026-06-3566-Q005", "text": "⁠air compressor compound valve?", "family": "Air Compressor", "subtopic": "Reciprocating Compressor", "tid": "MUM-2026-06-3566", "tray": "review", "candidates": [ { "answer_id": "MAC-598-001", "score": 0.7782885432243347, "sibling_score": 0.7782885432243347, "answer_score": 0.5763988733291626, "sibling_qid": "KOC-2023-08-0983-Q006", "sibling_text": "compressor valve details", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "The main air compressor valve — arrangement, parts, and why the construction is so complex", "cross_family": false }, { "answer_id": "MAC-353-003", "score": 0.729162871837616, "sibling_score": 0.729162871837616, "answer_score": 0.5354978173971175, "sibling_qid": "CHE-2026-03-0489-Q005", "sibling_text": "air compressor valve checks", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Main air compressor suction / delivery valve inspection and overhaul", "cross_family": false }, { "answer_id": "ACRV-002", "score": 0.7118365168571472, "sibling_score": 0.7118365168571472, "answer_score": null, "sibling_qid": "KOL-2026-07-4284-Q004", "sibling_text": "air compressor 2nd stage relief valve lifting", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Second or final-stage relief valve lifting — reasons and checks", "cross_family": false } ] }, { "qid": "MUM-2026-06-3567-Q002", "text": "HV isolation ?", "family": "Auxiliary Equipment", "subtopic": "Quick Closing Valve", "tid": "MUM-2026-06-3567", "tray": "new", "candidates": [ { "answer_id": "HV-SYS-P05-002", "score": 0.563959002494812, "sibling_score": 0.563959002494812, "answer_score": 0.3758748173713684, "sibling_qid": "CHE-2025-08-0269-Q001", "sibling_text": "how you will isolate hv system precautions", "sibling_family": "", "via": "sibling", "answer_title": "Working on the HV system: precautions, isolation and earthing before maintenance", "cross_family": false }, { "answer_id": "IR-TEST-B-006", "score": 0.5094320178031921, "sibling_score": 0.5094320178031921, "answer_score": 0.35453105866909024, "sibling_qid": "KOC-2021-10-1149-Q004", "sibling_text": "hv system ir test", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "High-voltage IR test — full procedure", "cross_family": true }, { "answer_id": "T038-P01-002", "score": 0.5093749761581421, "sibling_score": 0.5093749761581421, "answer_score": null, "sibling_qid": "MUM-2026-03-2037-Q001", "sibling_text": "hv protection", "sibling_family": "", "via": "sibling", "answer_title": "HV system onboard — layout, components, applications, earthing & protection", "cross_family": false } ] }, { "qid": "MUM-2026-06-3567-Q003", "text": "Humming noise in transformer ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Transformer Theory", "tid": "MUM-2026-06-3567", "tray": "review", "candidates": [ { "answer_id": "XFMR-THY-E-004", "score": 0.7853286862373352, "sibling_score": 0.7853286862373352, "answer_score": 0.5377619892358779, "sibling_qid": "KOL-2021-09-2491-Q005", "sibling_text": "transformer humming", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Humming and magnetostriction", "cross_family": false }, { "answer_id": "MNS-011", "score": 0.5136810600757599, "sibling_score": null, "answer_score": 0.5136810600757599, "sibling_qid": "", "sibling_text": "humming noise from a motor the reasons and what you do about it first question always is it turning that splits the fault tree in two humming and stationary single phasing locked rotor cogging or severe undervoltage", "sibling_family": "", "via": "answer_title", "answer_title": "Humming noise from a motor — the reasons, and what you do about it", "cross_family": false }, { "answer_id": "SPHS-B-003", "score": 0.43476324677467343, "sibling_score": null, "answer_score": 0.43476324677467343, "sibling_qid": "", "sibling_text": "how will you know single phasing has occurred on a running motor sound first a heavy growl or hum markedly different from the normal note this is what the examiner wants said first common and usually the earliest indication but not proof audibility depends on the enclosure the load and how loud the space is confirm electrically vibration accompanying the growl", "sibling_family": "", "via": "answer_title", "answer_title": "How will you know single phasing has occurred on a running motor?", "cross_family": false } ] }, { "qid": "MUM-2026-06-3569-Q004", "text": "Overload relays?", "family": "Electrical - Motors & Starters", "subtopic": "Induction Motor (General / Working)", "tid": "MUM-2026-06-3569", "tray": "new", "candidates": [ { "answer_id": "OCR-185-003", "score": 0.554183840751648, "sibling_score": 0.554183840751648, "answer_score": null, "sibling_qid": "CHE-2026-05-0629-Q010", "sibling_text": "overload relay where nd how it function", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What an overcurrent relay is, where it is fitted, what it protects", "cross_family": false }, { "answer_id": "CB-ACBVCB-B-001", "score": 0.5502681732177734, "sibling_score": 0.5502681732177734, "answer_score": null, "sibling_qid": "CHE-2026-02-0340-Q007", "sibling_text": "over load relay", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "ACB/main circuit breaker safeties, trips, settings and testing", "cross_family": true }, { "answer_id": "OC-UV-TRIP-003", "score": 0.5257528424263, "sibling_score": 0.5257528424263, "answer_score": null, "sibling_qid": "MUM-2026-03-2001-Q004", "sibling_text": "overload relay", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Overload trip — activation, time delay and protection effect", "cross_family": true } ] }, { "qid": "MUM-2026-06-3570-Q006", "text": "Emergency Power supply?", "family": "Electrical - Protection & Relays", "subtopic": "Protection / Relays", "tid": "MUM-2026-06-3570", "tray": "review", "candidates": [ { "answer_id": "EMG-DG-P02-FINAL-2-001", "score": 0.7916749715805054, "sibling_score": 0.7916749715805054, "answer_score": null, "sibling_qid": "KOC-2022-12-0121-Q015", "sibling_text": "emergency power supply to what all eq", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Emergency generator loads and duration of emergency supply", "cross_family": true }, { "answer_id": "EDG-P01-001", "score": 0.7851661443710327, "sibling_score": 0.7851661443710327, "answer_score": 0.523758727312088, "sibling_qid": "MUM-2026-06-3591-Q005", "sibling_text": "emergency power supply", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Emergency source of power — the SOLAS requirements", "cross_family": true }, { "answer_id": "AUC-PLC-03", "score": 0.755162239074707, "sibling_score": 0.755162239074707, "answer_score": null, "sibling_qid": "MUM-2026-04-2953-Q004", "sibling_text": "plc emergency power supply", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "PLC power supply arrangements — normal, emergency and ride-through", "cross_family": true } ] }, { "qid": "MUM-2026-06-3571-Q005", "text": "How to check ICCP efficiency ?", "family": "Electrical - ICCP & Cathodic Protection", "subtopic": "", "tid": "MUM-2026-06-3571", "tray": "new", "candidates": [ { "answer_id": "ICCP-119-P01-001", "score": 0.5670760273933411, "sibling_score": 0.5670760273933411, "answer_score": null, "sibling_qid": "MUM-2022-11-2715-Q033", "sibling_text": "iccp and how do we know it is working good", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP — purpose, principle and basic working", "cross_family": false }, { "answer_id": "ICCP-MGPS-002", "score": 0.5477756857872009, "sibling_score": 0.5477756857872009, "answer_score": null, "sibling_qid": "MUM-2026-02-1982-Q005", "sibling_text": "how will you know if your iccp and mgps are performing satisfactorily", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "Knowing ICCP and MGPS are performing satisfactorily", "cross_family": false }, { "answer_id": "ICCP-119-P01-003", "score": 0.4954652190208435, "sibling_score": 0.4954652190208435, "answer_score": null, "sibling_qid": "KOL-2026-01-2948-Q005", "sibling_text": "iccp working how much current", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP values, impressed-current meaning, anode/cathode roles and materials", "cross_family": false } ] }, { "qid": "MUM-2026-06-3571-Q007", "text": "Short ckt test and significance ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Transformer Theory", "tid": "MUM-2026-06-3571", "tray": "review", "candidates": [ { "answer_id": "XFMR-THY-B-003", "score": 0.6664021015167236, "sibling_score": 0.6664021015167236, "answer_score": null, "sibling_qid": "MUM-2022-11-1368-Q005", "sibling_text": "short ckt test how done", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Transformer short-circuit (impedance) test and copper-loss measurement", "cross_family": false }, { "answer_id": "IOCT-565-004", "score": 0.6483755707740784, "sibling_score": 0.6483755707740784, "answer_score": 0.45173526406288145, "sibling_qid": "MUM-2026-06-3567-Q006", "sibling_text": "short circuit test", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "How is a short-circuit test carried out?", "cross_family": false }, { "answer_id": "XFMR-THY-C-002", "score": 0.5625424385070801, "sibling_score": 0.5625424385070801, "answer_score": null, "sibling_qid": "KOL-2025-11-2919-Q004", "sibling_text": "open circuit test short circuit test", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Open-circuit and short-circuit tests on a transformer — how each is done, which side, and what each gives", "cross_family": false } ] }, { "qid": "MUM-2026-06-3572-Q003", "text": "How to repair breached rudder?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "MUM-2026-06-3572", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.774010956287384, "sibling_score": 0.774010956287384, "answer_score": null, "sibling_qid": "MUM-2026-05-3161-Q003", "sibling_text": "how to repair breached rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "WBS-C-006", "score": 0.5220761775970458, "sibling_score": null, "answer_score": 0.5220761775970458, "sibling_qid": "", "sibling_text": "propeller and rudder repair grading the damage and the class approved route grade the damage first minor nicks erosion bent tip vs crack major minor grind and blend out the notch restore a fair section keep balance small cold repair epoxy fillers for minor surface defects only", "sibling_family": "", "via": "answer_title", "answer_title": "Propeller and rudder repair — grading the damage and the Class-approved route", "cross_family": false }, { "answer_id": "CEM-BOX-001", "score": 0.48712727427482605, "sibling_score": null, "answer_score": 0.48712727427482605, "sibling_qid": "", "sibling_text": "temporary repair with a cement box until dry dock take me through it reduce the head first trim or list by ballast isolate the line where the system allows crack drill stop holes at both tips removes the sharp stress raising tip so the crack cannot run", "sibling_family": "", "via": "answer_title", "answer_title": "Temporary repair with a cement box until dry dock—take me through it.", "cross_family": false } ] }, { "qid": "MUM-2026-06-3572-Q005", "text": "How to detect air leak in evaporator coil?", "family": "Refrigeration & AC", "subtopic": "Refrigeration Faults / Checks", "tid": "MUM-2026-06-3572", "tray": "review", "candidates": [ { "answer_id": "REFR-FLT-003", "score": 0.7943108081817627, "sibling_score": 0.7943108081817627, "answer_score": 0.5161382108926773, "sibling_qid": "MUM-2026-07-3731-Q005", "sibling_text": "how to detect air leak in evaporator coil", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Refrigerant leakage or loss: detect, confirm, respond, and the record-keeping", "cross_family": false }, { "answer_id": "LO-CLR-001", "score": 0.7551904320716858, "sibling_score": 0.7551904320716858, "answer_score": null, "sibling_qid": "MUM-2026-06-3598-Q010", "sibling_text": "leak in the evaporator coil of ac how to check", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "How do you detect a leaking AE / DG lube-oil cooler, and locate the tube?", "cross_family": false }, { "answer_id": "AIR-REF-001", "score": 0.692074716091156, "sibling_score": 0.692074716091156, "answer_score": null, "sibling_qid": "MUM-2026-07-3671-Q007", "sibling_text": "how to detect air in refrigeration system", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "1. Indications that air is present in a refrigeration system", "cross_family": false } ] }, { "qid": "MUM-2026-06-3572-Q006", "text": "How to increase propeller efficiency?", "family": "Shafting, Propeller & Rudder", "subtopic": "Stern Tube / Shafting / Propeller / Rudder", "tid": "MUM-2026-06-3572", "tray": "review", "candidates": [ { "answer_id": "SPR-STERN-001", "score": 0.8052253723144531, "sibling_score": 0.8052253723144531, "answer_score": 0.5425905168056487, "sibling_qid": "MUM-2026-06-3573-Q004", "sibling_text": "propeller efficiency how to increase", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Propeller design factors, efficiency, handedness & material", "cross_family": false }, { "answer_id": "RES-PROP-P03-002", "score": 0.7551998496055603, "sibling_score": 0.7551998496055603, "answer_score": 0.5024527132511138, "sibling_qid": "KOL-2025-03-1968-Q005", "sibling_text": "propeller efficiency how to increase", "sibling_family": "", "via": "sibling", "answer_title": "2. Propulsive coefficients: QPC, hull/propeller/relative-rotative efficiency, wake, slip and propeller curves", "cross_family": false }, { "answer_id": "SPR-STERN-004", "score": 0.6746245622634888, "sibling_score": 0.6746245622634888, "answer_score": 0.481019178032875, "sibling_qid": "KOL-2022-03-3523-Q003", "sibling_text": "rake of propeller advantages", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Propeller rake & skew", "cross_family": false } ] }, { "qid": "MUM-2026-06-3572-Q007", "text": "How to set boiler safety valve?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2026-06-3572", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-001", "score": 0.824912965297699, "sibling_score": 0.824912965297699, "answer_score": null, "sibling_qid": "KOC-2026-05-0003-Q005", "sibling_text": "boiler safety valve setting procedure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.7952012419700623, "sibling_score": 0.7952012419700623, "answer_score": null, "sibling_qid": "MUM-2026-03-2935-Q013", "sibling_text": "boiler safety valve setting in presence of surveyor after survey", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.7941883206367493, "sibling_score": 0.7941883206367493, "answer_score": null, "sibling_qid": "KOC-2026-05-0034-Q010", "sibling_text": "boiler safety valve types and how safety valve is set complete procedures", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "MUM-2026-06-3574-Q001", "text": "Type of ship sailed?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-06-3574", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.84583979845047, "sibling_score": 0.84583979845047, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8448490500450134, "sibling_score": 0.8448490500450134, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7927221655845642, "sibling_score": 0.7927221655845642, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "MUM-2026-06-3574-Q003", "text": "Boiler Gauge glass maintenance?", "family": "Boilers - Construction & Components", "subtopic": "Gauge Glass", "tid": "MUM-2026-06-3574", "tray": "review", "candidates": [ { "answer_id": "BLR-GG-001", "score": 0.839927613735199, "sibling_score": 0.839927613735199, "answer_score": 0.6370284199714661, "sibling_qid": "MUM-2026-06-3490-Q004", "sibling_text": "boiler gauge glass overhaul", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "How do you overhaul, repair, renew, assemble or tighten a boiler gauge glass?", "cross_family": false }, { "answer_id": "BLR-GG-002", "score": 0.7634478211402893, "sibling_score": 0.7634478211402893, "answer_score": null, "sibling_qid": "MUM-2022-08-0942-Q006", "sibling_text": "boiler gauge glass safety", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "What safety arrangements and precautions are provided for a boiler gauge glass?", "cross_family": false }, { "answer_id": "BLR-GG-003", "score": 0.763437807559967, "sibling_score": 0.763437807559967, "answer_score": 0.5641203641891479, "sibling_qid": "KOL-2021-02-3375-Q001", "sibling_text": "type of boiler gauge glass", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "What are the types, parts, material and indication features of a boiler gauge glass?", "cross_family": false } ] }, { "qid": "MUM-2026-06-3574-Q005", "text": "Crack propagation on deck, what action you'll take?", "family": "Drydock & Underwater Surveys", "subtopic": "Hull Repairs in DD", "tid": "MUM-2026-06-3574", "tray": "new", "candidates": [ { "answer_id": "HULL-DD-002", "score": 0.5880113244056702, "sibling_score": 0.5880113244056702, "answer_score": 0.523486053943634, "sibling_qid": "MUM-2023-08-2182-Q001", "sibling_text": "during sailing u found crack on the main deck what will be your action", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "2. Crack found in service / on deck while sailing", "cross_family": false }, { "answer_id": "DUS-P4-05", "score": 0.5437326431274414, "sibling_score": 0.5437326431274414, "answer_score": 0.3985321655869484, "sibling_qid": "KOL-2026-07-4289-Q002", "sibling_text": "fire line crack on deck which regulations are there for repairing it how will u repair", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Card 5 — Fire-line crack on deck: regulations and repair method", "cross_family": false }, { "answer_id": "CEM-BOX-001", "score": 0.5285997986793518, "sibling_score": 0.5285997986793518, "answer_score": 0.4363762855529785, "sibling_qid": "MUM-2025-09-2392-Q017", "sibling_text": "if hull crack and you are going to dry dock how will you manage crack with cement box till reaching dry dock", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Temporary repair with a cement box until dry dock—take me through it.", "cross_family": false } ] }, { "qid": "MUM-2026-06-3575-Q002", "text": "Product carrier is to convert into a Crude carrier what documents are required ? ", "family": "Surveys - Statutory", "subtopic": "Certificates List", "tid": "MUM-2026-06-3575", "tray": "review", "candidates": [ { "answer_id": "CERT-LIST-P02-002", "score": 0.8820578455924988, "sibling_score": 0.8820578455924988, "answer_score": null, "sibling_qid": "MUM-2025-11-0590-Q002", "sibling_text": "product carrier is to convert into a crude carrier what documents are required", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Document of Compliance, Certificate and Statement of Compliance", "cross_family": false }, { "answer_id": "CERT-LIST-P02-003", "score": 0.6452334523200989, "sibling_score": 0.6452334523200989, "answer_score": null, "sibling_qid": "KOL-2025-08-1013-Q002", "sibling_text": "certificate carried by oil tanker", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Certificates that decide ship type and permitted cargo", "cross_family": false }, { "answer_id": "CERT-LIST-P01-001", "score": 0.6309197545051575, "sibling_score": 0.6309197545051575, "answer_score": null, "sibling_qid": "KOL-2025-11-1117-Q002", "sibling_text": "what all statutory need to carry for trading certificate under bunker convention", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "List the statutory certificates carried onboard a ship.", "cross_family": false } ] }, { "qid": "MUM-2026-06-3575-Q013", "text": "Ship owners liability as per MLC? ", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2026-06-3575", "tray": "review", "candidates": [ { "answer_id": "CLC-CIV-B-003", "score": 0.7557143568992615, "sibling_score": 0.7557143568992615, "answer_score": 0.4375424176454544, "sibling_qid": "MUM-2026-04-0880-Q004", "sibling_text": "mlc what is shipowner liability", "sibling_family": "MLC", "via": "sibling", "answer_title": "LLMC: purpose, scope and limitation of maritime claims", "cross_family": false }, { "answer_id": "MLC-WRH-B-009", "score": 0.6248160600662231, "sibling_score": 0.6248160600662231, "answer_score": null, "sibling_qid": "CHE-2025-08-0426-Q009", "sibling_text": "ship owner abandoned the ship what will you do as per mlc i told financial security certificate for repartation", "sibling_family": "MLC", "via": "sibling", "answer_title": "Abandonment — financial security and repatriation", "cross_family": false }, { "answer_id": "CLC-CIV-A-001", "score": 0.5337317228317261, "sibling_score": 0.48251667618751526, "answer_score": 0.5337317228317261, "sibling_qid": "KOL-2018-08-0202-Q002", "sibling_text": "safety fn 3 banerjee and rao specialties of tanker freeboard permeability and lot of crossq s safety in p p room lot of cross q s charter s party what is clc what is unstable ship lot of cross qs", "sibling_family": "Other Conventions", "via": "answer_title", "answer_title": "CLC Convention — objective, scope and shipowner liability", "cross_family": true } ] }, { "qid": "MUM-2026-06-3576-Q003", "text": "CSR under which code and all three forms?", "family": "Surveys - Statutory", "subtopic": "CSR / Continuous Synopsis Record", "tid": "MUM-2026-06-3576", "tray": "new", "candidates": [ { "answer_id": "CERT-LIST-P01-001", "score": 0.6382513642311096, "sibling_score": 0.6382513642311096, "answer_score": null, "sibling_qid": "NOI-2026-09-0002-Q003", "sibling_text": "why csr form 3", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "List the statutory certificates carried onboard a ship.", "cross_family": false }, { "answer_id": "CSR-585-001", "score": 0.5257492065429688, "sibling_score": 0.5257492065429688, "answer_score": 0.2844567894935608, "sibling_qid": "KOC-2025-11-0718-Q006", "sibling_text": "what is csr", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the Continuous Synopsis Record (CSR)? Explain its purpose and requirements.", "cross_family": false }, { "answer_id": "PSC-RO-P02-007", "score": 0.43102309107780457, "sibling_score": 0.43102309107780457, "answer_score": 0.28048681318759916, "sibling_qid": "KOC-2025-08-0650-Q009", "sibling_text": "psc form a and form b", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What are PSC Form A and Form B?", "cross_family": false } ] }, { "qid": "MUM-2026-06-3576-Q005", "text": "Certificates under chapter 11 SOLAS ?", "family": "IMO Structure & Conventions", "subtopic": "SOLAS Chapters", "tid": "MUM-2026-06-3576", "tray": "review", "candidates": [ { "answer_id": "SOLAS-CH-007", "score": 0.6722373962402344, "sibling_score": 0.6722373962402344, "answer_score": 0.37344748228788377, "sibling_qid": "MUM-2026-06-3477-Q004", "sibling_text": "certificates under solas chapter xi", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS Chapter IX - ISM Code and certificates", "cross_family": false }, { "answer_id": "SOLAS-CH-016", "score": 0.6251300573348999, "sibling_score": 0.6251300573348999, "answer_score": 0.37897438704967495, "sibling_qid": "KOC-2023-11-0246-Q002", "sibling_text": "certificates under solas solas new ammendemnts solas chapters", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Codes and certificates under SOLAS", "cross_family": false }, { "answer_id": "CERT-LIST-P02-001", "score": 0.5775450468063354, "sibling_score": 0.5775450468063354, "answer_score": 0.32041116952896115, "sibling_qid": "KOC-2023-05-0192-Q005", "sibling_text": "solas certificates", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "SOLAS certificates carried onboard", "cross_family": true } ] }, { "qid": "MUM-2026-06-3577-Q004", "text": "AE clearances?", "family": "Drydock & Underwater Surveys", "subtopic": "DD Preparation / Plans", "tid": "MUM-2026-06-3577", "tray": "new", "candidates": [ { "answer_id": "DDHSC-002", "score": 0.6016177535057068, "sibling_score": 0.6016177535057068, "answer_score": null, "sibling_qid": "MUM-2026-10-4001-Q007", "sibling_text": "clearances", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Explain the underwater hull inspection and checks carried out as Second Engineer during drydock.", "cross_family": false }, { "answer_id": "TC-OVHL-002", "score": 0.4987717270851135, "sibling_score": 0.4987717270851135, "answer_score": null, "sibling_qid": "MUM-2025-08-2388-Q005", "sibling_text": "ae tc in place full overhaul with all clearances and values", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Auxiliary-engine turbocharger overhaul and checks", "cross_family": true }, { "answer_id": "TC-KLM-330-001", "score": 0.49847209453582764, "sibling_score": 0.49847209453582764, "answer_score": null, "sibling_qid": "MUM-2026-03-2638-Q005", "sibling_text": "clearances to be taken in tc", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "What are turbocharger K, L and M clearances, and how is each one derived?", "cross_family": true } ] }, { "qid": "MUM-2026-06-3578-Q001", "text": "Exam status, written, orals ?", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-06-3578", "tray": "review", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.7506823539733887, "sibling_score": 0.7506823539733887, "answer_score": null, "sibling_qid": "MUM-2026-01-1252-Q001", "sibling_text": "status of results oral written exam", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": true }, { "answer_id": "EXHV-P01-001", "score": 0.5945241451263428, "sibling_score": 0.5945241451263428, "answer_score": null, "sibling_qid": "CHE-2026-01-0101-Q001", "sibling_text": "types of ship done and exam status", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "DUS-P1-02", "score": 0.5885335206985474, "sibling_score": 0.5885335206985474, "answer_score": null, "sibling_qid": "KOL-2025-08-3851-Q006", "sibling_text": "drydock plans rudder checks cross questions what about other written oral exams status told waiting for naval written result to come all other paper cleared", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Plans, drawings and special tools kept ready for drydock — engine-department view", "cross_family": true } ] }, { "qid": "MUM-2026-06-3579-Q003", "text": "What if quills get choked. How will u know ?", "family": "MARPOL - General & Compliance", "subtopic": "Bunker Sample Storage", "tid": "MUM-2026-06-3579", "tray": "new", "candidates": [ { "answer_id": "JOIN-HDVR-003", "score": 0.4416203498840332, "sibling_score": 0.4416203498840332, "answer_score": null, "sibling_qid": "MUM-2026-01-0716-Q016", "sibling_text": "your junior got chocked what will you do", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Familiarising and training a newly joined junior engineer as Second Engineer", "cross_family": true }, { "answer_id": "ECON-EGB-005", "score": 0.44043445587158203, "sibling_score": 0.44043445587158203, "answer_score": null, "sibling_qid": "KOC-2025-02-2060-Q005", "sibling_text": "economizer choke how will you come to know reasons", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Cleaning, choking & soot-fire prevention / indication / temperature", "cross_family": true }, { "answer_id": "CHK-RM-002", "score": 0.41060346364974976, "sibling_score": 0.41060346364974976, "answer_score": null, "sibling_qid": "KOC-2025-05-0590-Q015", "sibling_text": "what are chokes and explain resin choking explain", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Explain resin chocking — what it is, how it is done, and how resin chocks are cast and poured.", "cross_family": true } ] }, { "qid": "MUM-2026-06-3580-Q001", "text": "MLC 2017 Amendments?", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2026-06-3580", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.3553522825241089, "sibling_score": 0.3553522825241089, "answer_score": null, "sibling_qid": "KOC-2026-05-2135-Q011", "sibling_text": "mlc titles explain title 1 explain dmlc part 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "MLC-WRH-B-007", "score": 0.35312700271606445, "sibling_score": 0.35312700271606445, "answer_score": null, "sibling_qid": "MUM-2024-09-2771-Q003", "sibling_text": "mlc and detainable deficiencies", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false }, { "answer_id": "MLC-WRH-B-010", "score": 0.35026389360427856, "sibling_score": 0.35026389360427856, "answer_score": null, "sibling_qid": "MUM-2025-11-0573-Q004", "sibling_text": "how are wages set under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "SEA, the CBA parties, and how wages are set — action on non-payment", "cross_family": false } ] }, { "qid": "MUM-2026-06-3580-Q003", "text": "⁠Motivation theory and what is Maslow theory of Motivation?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Miller / Otto / Diesel Cycle", "tid": "MUM-2026-06-3580", "tray": "new", "candidates": [ { "answer_id": "CPP-TCV-02", "score": 0.5127074718475342, "sibling_score": 0.5127074718475342, "answer_score": null, "sibling_qid": "KOL-2016-07-1222-Q002", "sibling_text": "what is millers theory", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Miller cycle — principle and PV effect", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.4054306745529175, "sibling_score": 0.4054306745529175, "answer_score": null, "sibling_qid": "MUM-2025-06-0332-Q002", "sibling_text": "ism what is it why it is necessary", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": true }, { "answer_id": "MEB-MEC-P03-001", "score": 0.39847373962402344, "sibling_score": 0.39847373962402344, "answer_score": 0.2602771669626236, "sibling_qid": "CHE-2025-09-0178-Q007", "sibling_text": "mark 9 significance in me c", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "ME-B vs ME-C — the core difference", "cross_family": false } ] }, { "qid": "MUM-2026-06-3582-Q001", "text": "Introduce yourself in 20 seconds?", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-06-3582", "tray": "new", "candidates": [ { "answer_id": "MEB-MEC-P03-005", "score": 0.4078880548477173, "sibling_score": 0.4078880548477173, "answer_score": null, "sibling_qid": "MUM-2024-11-0965-Q002", "sibling_text": "brief review about me and rt flex engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "MAN ME vs Sulzer / Wärtsilä RT-flex", "cross_family": true }, { "answer_id": "ENG-NOM-005", "score": 0.3499184250831604, "sibling_score": 0.3499184250831604, "answer_score": null, "sibling_qid": "MUM-2026-09-3934-Q001", "sibling_text": "nomenclature of me", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true }, { "answer_id": "MCC-MEB-P02-003", "score": 0.33817729353904724, "sibling_score": 0.33817729353904724, "answer_score": null, "sibling_qid": "KOL-2021-12-1651-Q003", "sibling_text": "1 what is me engine why me", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Conventional MC / MC-C versus electronic ME — the practical operating differences", "cross_family": true } ] }, { "qid": "MUM-2026-06-3582-Q002", "text": "Type of ship sailed?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-06-3582", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.84583979845047, "sibling_score": 0.84583979845047, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8448489904403687, "sibling_score": 0.8448489904403687, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7927221059799194, "sibling_score": 0.7927221059799194, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "MUM-2026-06-3582-Q006", "text": "Tanks other than stainless steel?", "family": "NDT & Material Testing", "subtopic": "Stainless / Gun Metal / Brass", "tid": "MUM-2026-06-3582", "tray": "new", "candidates": [ { "answer_id": "BCH-IBC-A-001", "score": 0.5736849904060364, "sibling_score": 0.5736849904060364, "answer_score": null, "sibling_qid": "MUM-2026-06-3582-Q003", "sibling_text": "type of tanks on chemicals tanker", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Type 1, Type 2 and Type 3 chemical tankers — the ship-type classification", "cross_family": false }, { "answer_id": "IGC-IGF-007", "score": 0.5486621856689453, "sibling_score": 0.5486621856689453, "answer_score": 0.4145576536655426, "sibling_qid": "KOL-2023-07-4025-Q005", "sibling_text": "what type of cargo tank material why we cannot use mild steel", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "IGC cargo tank types, containment, barriers and materials", "cross_family": true }, { "answer_id": "CPFE-583-012", "score": 0.539515495300293, "sibling_score": 0.539515495300293, "answer_score": null, "sibling_qid": "MUM-2026-06-3616-Q012", "sibling_text": "what type of tank can pumped out", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Seal arrangement, cofferdam, and how leakage is detected", "cross_family": true } ] }, { "qid": "MUM-2026-06-3583-Q002", "text": "Types of bulbous bow ?", "family": "Ship Construction & Stability", "subtopic": "", "tid": "MUM-2026-06-3583", "tray": "new", "candidates": [ { "answer_id": "PPS-230-006", "score": 0.5086591243743896, "sibling_score": 0.5086591243743896, "answer_score": null, "sibling_qid": "MUM-2026-04-0896-Q004", "sibling_text": "bulbous bow how it is attached to ship why it is attached name of the wave which counteracts the original bow wave how bulbous bow improves efficiency", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Fore-end / fore-peak structure: draw and describe", "cross_family": false }, { "answer_id": "BHD-TYPE-A-001", "score": 0.4457128047943115, "sibling_score": 0.4457128047943115, "answer_score": null, "sibling_qid": "CHE-2025-08-0045-Q001", "sibling_text": "categories of bulhead full and explanation", "sibling_family": "", "via": "sibling", "answer_title": "Bulkheads — types, classification, functions and purpose", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.4440978169441223, "sibling_score": 0.4440978169441223, "answer_score": null, "sibling_qid": "MUM-2026-07-3793-Q004", "sibling_text": "type b60 and type 100", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": true } ] }, { "qid": "MUM-2026-06-3583-Q003", "text": "How you will use SEEMP on ship and cross questions ?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "EEDI / EEXI / CII / SEEMP", "tid": "MUM-2026-06-3583", "tray": "new", "candidates": [ { "answer_id": "SEEMP-123-B-002", "score": 0.5112124085426331, "sibling_score": 0.5112124085426331, "answer_score": 0.3034824699163437, "sibling_qid": "KOL-2021-10-0569-Q004", "sibling_text": "seemp how we r using on ship name", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP in practice — implementation and energy-efficiency measures", "cross_family": false }, { "answer_id": "A6-NSEC-005", "score": 0.4795239269733429, "sibling_score": 0.4795239269733429, "answer_score": null, "sibling_qid": "MUM-2024-11-0222-Q002", "sibling_text": "seemp all parts cross questions", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP — Part I, II & III", "cross_family": false }, { "answer_id": "EECS-005", "score": 0.47653132677078247, "sibling_score": 0.47653132677078247, "answer_score": null, "sibling_qid": "KOL-2016-12-0038-Q007", "sibling_text": "eedi and seemp and cross questions", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "05. SEEMP and EEDI — what the SEEMP and EEDI files hold on board", "cross_family": false } ] }, { "qid": "MUM-2026-06-3583-Q005", "text": "Unclose ..parts in unclose What is job of flag state in unclose and cross questions ?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "SEEMP I/II/III", "tid": "MUM-2026-06-3583", "tray": "new", "candidates": [ { "answer_id": "FLAG-ST-001", "score": 0.4906913638114929, "sibling_score": 0.4906913638114929, "answer_score": null, "sibling_qid": "KOC-2024-01-0286-Q005", "sibling_text": "role of flagstate", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Flag State — authority, role, duties and requirements", "cross_family": true }, { "answer_id": "UNCLOS-001", "score": 0.47143855690956116, "sibling_score": 0.47143855690956116, "answer_score": null, "sibling_qid": "KOC-2025-03-0581-Q014", "sibling_text": "what is unclose", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is UNCLOS? Explain it in detail — full form, purpose and features", "cross_family": true }, { "answer_id": "IACS-324-003", "score": 0.4642787575721741, "sibling_score": 0.4642787575721741, "answer_score": null, "sibling_qid": "KOC-2023-12-0255-Q002", "sibling_text": "how ro is recognized by any flag state steps", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "3. What is a Recognized Organization, how is it recognized by a flag State, and how can a classification society become one?", "cross_family": true } ] }, { "qid": "MUM-2026-06-3583-Q006", "text": "What are the guidelines of cyber security of the imo and cross questions", "family": "IMO Structure & Conventions", "subtopic": "IMO / Committees / Codes", "tid": "MUM-2026-06-3583", "tray": "new", "candidates": [ { "answer_id": "CYBER-SEC-001", "score": 0.5811502933502197, "sibling_score": 0.5811502933502197, "answer_score": 0.525821915268898, "sibling_qid": "KOL-2024-12-0904-Q006", "sibling_text": "what are the requirements for cybersecurity onboard ships", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is cyber security / cyber risk management onboard, and its requirements and elements?", "cross_family": true }, { "answer_id": "CYBER-SEC-003", "score": 0.5689915418624878, "sibling_score": 0.5689915418624878, "answer_score": 0.47724805772304535, "sibling_qid": "KOC-2024-05-1357-Q004", "sibling_text": "flemings right hand rule and application onboard paul sir how cyber security is managed onboard he wanted details of identify detect protect reapond and recover", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "How would you implement and manage cyber security onboard, including cyber hygiene and the identify-protect-detect-respond-recover controls?", "cross_family": true }, { "answer_id": "IMO-5PIL-005", "score": 0.5362600088119507, "sibling_score": 0.5362600088119507, "answer_score": null, "sibling_qid": "MUM-2026-06-3626-Q008", "sibling_text": "various conventions under imo for safety", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "IMO conventions for ship safety", "cross_family": false } ] }, { "qid": "MUM-2026-06-3583-Q007", "text": "Unclos ..parts in unclos... What is job of flag state in unclos and cross questions", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "SEEMP I/II/III", "tid": "MUM-2026-06-3583", "tray": "new", "candidates": [ { "answer_id": "FLAG-ST-001", "score": 0.5673215389251709, "sibling_score": 0.5673215389251709, "answer_score": 0.3042575269937515, "sibling_qid": "KOC-2024-01-0286-Q005", "sibling_text": "role of flagstate", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Flag State — authority, role, duties and requirements", "cross_family": true }, { "answer_id": "IACS-324-003", "score": 0.5218239426612854, "sibling_score": 0.5218239426612854, "answer_score": 0.279729488492012, "sibling_qid": "KOC-2023-12-0255-Q002", "sibling_text": "how ro is recognized by any flag state steps", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "3. What is a Recognized Organization, how is it recognized by a flag State, and how can a classification society become one?", "cross_family": true }, { "answer_id": "FLAG-ST-003", "score": 0.5020999908447266, "sibling_score": 0.5020999908447266, "answer_score": null, "sibling_qid": "KOC-2024-12-0487-Q002", "sibling_text": "flag state and port state", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Flag state vs port state / PSC / PSI vs class vs coastal state", "cross_family": true } ] }, { "qid": "MUM-2026-06-3583-Q008", "text": "What are the guidelines of cyber security of the imo and cross questions", "family": "IMO Structure & Conventions", "subtopic": "IMO / Committees / Codes", "tid": "MUM-2026-06-3583", "tray": "new", "candidates": [ { "answer_id": "CYBER-SEC-001", "score": 0.5811501741409302, "sibling_score": 0.5811501741409302, "answer_score": 0.525821915268898, "sibling_qid": "KOL-2024-12-0904-Q006", "sibling_text": "what are the requirements for cybersecurity onboard ships", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is cyber security / cyber risk management onboard, and its requirements and elements?", "cross_family": true }, { "answer_id": "CYBER-SEC-003", "score": 0.5689915418624878, "sibling_score": 0.5689915418624878, "answer_score": 0.47724800705909726, "sibling_qid": "KOC-2024-05-1357-Q004", "sibling_text": "flemings right hand rule and application onboard paul sir how cyber security is managed onboard he wanted details of identify detect protect reapond and recover", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "How would you implement and manage cyber security onboard, including cyber hygiene and the identify-protect-detect-respond-recover controls?", "cross_family": true }, { "answer_id": "IMO-5PIL-005", "score": 0.5362600088119507, "sibling_score": 0.5362600088119507, "answer_score": null, "sibling_qid": "MUM-2026-06-3626-Q008", "sibling_text": "various conventions under imo for safety", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "IMO conventions for ship safety", "cross_family": false } ] }, { "qid": "MUM-2026-06-3584-Q001", "text": "Status of other exams Sailing after class 4", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2026-06-3584", "tray": "new", "candidates": [ { "answer_id": "DUS-P1-02", "score": 0.6182542443275452, "sibling_score": 0.6182542443275452, "answer_score": null, "sibling_qid": "KOL-2025-08-3851-Q006", "sibling_text": "drydock plans rudder checks cross questions what about other written oral exams status told waiting for naval written result to come all other paper cleared", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Plans, drawings and special tools kept ready for drydock — engine-department view", "cross_family": true }, { "answer_id": "EXHV-P01-001", "score": 0.5728069543838501, "sibling_score": 0.5728069543838501, "answer_score": null, "sibling_qid": "CHE-2026-01-0101-Q001", "sibling_text": "types of ship done and exam status", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": true }, { "answer_id": "STCW-MAN-006", "score": 0.5165460705757141, "sibling_score": 0.5165460705757141, "answer_score": null, "sibling_qid": "NOI-2026-09-0008-Q001", "sibling_text": "training institue sea time after class 4 coc", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "What are the levels and categories of seafarer under STCW, and what are the duties of the Second Engineer at management level?", "cross_family": true } ] }, { "qid": "MUM-2026-06-3584-Q004", "text": "Type of rudder & Shape of Rudder ?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "MUM-2026-06-3584", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.6913526654243469, "sibling_score": 0.6913526654243469, "answer_score": null, "sibling_qid": "KOC-2026-03-0879-Q004", "sibling_text": "rudder cross section", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "SPR-STERN-006", "score": 0.6843350529670715, "sibling_score": 0.6843350529670715, "answer_score": null, "sibling_qid": "MUM-2026-05-3201-Q001", "sibling_text": "type of rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Propeller types & special propulsors", "cross_family": false }, { "answer_id": "SPR-STERN-004", "score": 0.6213936805725098, "sibling_score": 0.6213936805725098, "answer_score": null, "sibling_qid": "MUM-2026-04-0894-Q003", "sibling_text": "what type of rudder i said semi balanced double plated rudder angle of attack stall angle", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Propeller rake & skew", "cross_family": true } ] }, { "qid": "MUM-2026-06-3584-Q006", "text": "Material of Rudder bush ?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "MUM-2026-06-3584", "tray": "new", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.6268754601478577, "sibling_score": 0.6268754601478577, "answer_score": null, "sibling_qid": "KOC-2026-04-0916-Q022", "sibling_text": "rudder internal coating", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "TRS-002", "score": 0.5776060223579407, "sibling_score": 0.5776060223579407, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "HULL-PAINT-002", "score": 0.5382447838783264, "sibling_score": 0.5382447838783264, "answer_score": null, "sibling_qid": "CHE-2026-02-0110-Q012", "sibling_text": "rudder internal painting", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Types of hull coating, the paint scheme by section, and why each is used", "cross_family": false } ] }, { "qid": "MUM-2026-06-3584-Q009", "text": "Dry dock chain inspections ?", "family": "Drydock & Underwater Surveys", "subtopic": "Drydock / Hull Repair / Sea Chest", "tid": "MUM-2026-06-3584", "tray": "review", "candidates": [ { "answer_id": "ANCHR-B-002", "score": 0.7194859981536865, "sibling_score": 0.7194859981536865, "answer_score": 0.5068122446537018, "sibling_qid": "KOL-2022-09-3566-Q002", "sibling_text": "anchor anchor chain inspection during drydock", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Anchor & cable survey in dry dock — the systematic inspection", "cross_family": true }, { "answer_id": "ANCHR-B-001", "score": 0.692388653755188, "sibling_score": 0.692388653755188, "answer_score": null, "sibling_qid": "KOL-2022-01-3513-Q001", "sibling_text": "dry dock anchor survey condition for chains renewal", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Chain gauging & wear / renewal limits", "cross_family": true }, { "answer_id": "DDHSC-001", "score": 0.6831497550010681, "sibling_score": 0.6831497550010681, "answer_score": 0.4899061918258667, "sibling_qid": "KOC-2023-03-1809-Q005", "sibling_text": "dry dock inspections", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Ship is in drydock and the dock is pumped dry — what checks do you carry out as Second Engineer?", "cross_family": false } ] }, { "qid": "MUM-2026-06-3584-Q010", "text": "Transom floors ?", "family": "Ship Construction & Stability", "subtopic": "Stern Frame / Transom", "tid": "MUM-2026-06-3584", "tray": "new", "candidates": [ { "answer_id": "FLR-WFB-P01-002", "score": 0.578869640827179, "sibling_score": 0.578869640827179, "answer_score": 0.4533725708723068, "sibling_qid": "CHE-2026-04-0139-Q004", "sibling_text": "solid floor girders", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "The solid floor — what it is, where it is fitted, its components", "cross_family": false }, { "answer_id": "DUS-P5-03", "score": 0.5612549185752869, "sibling_score": 0.5612549185752869, "answer_score": null, "sibling_qid": "MUM-2026-02-0785-Q002", "sibling_text": "transom construction", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Stern frame construction, cross-section and rudder-axis sketch", "cross_family": false }, { "answer_id": "FLR-WFB-P01-001", "score": 0.5377578139305115, "sibling_score": 0.5377578139305115, "answer_score": 0.5024790585041046, "sibling_qid": "MUM-2026-07-3752-Q001", "sibling_text": "types of floors", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Floors — what they are, the types, and where they are fitted", "cross_family": false } ] }, { "qid": "MUM-2026-06-3584-Q011", "text": "FTP code - fire test procedures?", "family": "SOLAS - Fire Safety", "subtopic": "FSS Code", "tid": "MUM-2026-06-3584", "tray": "review", "candidates": [ { "answer_id": "A60-BCLASS-003", "score": 0.72087162733078, "sibling_score": 0.72087162733078, "answer_score": 0.4420077860355377, "sibling_qid": "MUM-2022-12-0072-Q005", "sibling_text": "ftp code what all tests many more", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "FTP Code and the standard fire test", "cross_family": false }, { "answer_id": "FSS-CODE-001", "score": 0.5372921228408813, "sibling_score": 0.5372921228408813, "answer_score": null, "sibling_qid": "KOC-2025-07-0617-Q002", "sibling_text": "fss code and ftp code", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "What is the FSS Code, its status under SOLAS, and why is it a separate code rather than text inside Chapter II-2?", "cross_family": false }, { "answer_id": "FSS-CODE-002", "score": 0.5366684198379517, "sibling_score": 0.5366684198379517, "answer_score": null, "sibling_qid": "KOL-2024-12-0901-Q002", "sibling_text": "fss code how many chapters which convention xquestion fire test procedure", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "How many chapters does the FSS Code have and what are they? Name the important chapters.", "cross_family": false } ] }, { "qid": "MUM-2026-06-3585-Q001", "text": "Cargo tank high level alarm - working, testing, what to do in case of fault ?", "family": "Automation & Controls", "subtopic": "Temperature / Pressure / Level Sensor", "tid": "MUM-2026-06-3585", "tray": "review", "candidates": [ { "answer_id": "TPL-SENS-B-001", "score": 0.7202346920967102, "sibling_score": 0.7202346920967102, "answer_score": null, "sibling_qid": "MUM-2026-07-3730-Q001", "sibling_text": "cargo tank high level alarm", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Level sensing — float switches, level transmitters & boiler remote indicators", "cross_family": false }, { "answer_id": "IGAT-583-001", "score": 0.6322706937789917, "sibling_score": 0.6322706937789917, "answer_score": null, "sibling_qid": "KOL-2024-11-0890-Q004", "sibling_text": "cargo tank fire hazard protection system ig alarms and trips ig blower safeties ig pressure high after blower what safeties o2 analyser working", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "State all the alarms, trips and safety cut-outs provided on a tanker inert gas (IG) system.", "cross_family": true }, { "answer_id": "MAST-PVA-005", "score": 0.6283059120178223, "sibling_score": 0.6283059120178223, "answer_score": null, "sibling_qid": "KOL-2017-01-0045-Q003", "sibling_text": "oil tanker cargo tank safeties only those are fitted on the tank pv valve pr set value both vaccume and over pr high pr alarm set value low pr alarm set value overfill alarm set value high level alarm set value how u will do testing of pv valve on board units of pv valve setting", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "P/V valve — testing and calibration", "cross_family": true } ] }, { "qid": "MUM-2026-06-3585-Q005", "text": "checks on solenoid ?", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2026-06-3585", "tray": "new", "candidates": [ { "answer_id": "PST-CSI-BF-007", "score": 0.5661637783050537, "sibling_score": 0.5661637783050537, "answer_score": null, "sibling_qid": "KOC-2025-04-1037-Q016", "sibling_text": "checks on piston", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "The piston is out — what checks do you carry out on it?", "cross_family": true }, { "answer_id": "HYD-VLV-006", "score": 0.5377748012542725, "sibling_score": 0.5377748012542725, "answer_score": null, "sibling_qid": "KOL-2019-05-2288-Q004", "sibling_text": "solenoid valve full working where used and dig of it", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Solenoid Valves — Working, Diagram and Marine Use", "cross_family": true }, { "answer_id": "CTV-BF01-002", "score": 0.5318244099617004, "sibling_score": 0.5318244099617004, "answer_score": 0.39341609477996825, "sibling_qid": "KOC-2025-12-1678-Q008", "sibling_text": "solenoid valve working", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "How does a solenoid valve work — how does the coil pull the plunger, and why does it stroke one way only?", "cross_family": true } ] }, { "qid": "MUM-2026-06-3585-Q010", "text": "Heliserts, tool used?", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "MUM-2026-06-3585", "tray": "new", "candidates": [ { "answer_id": "CYL-LINER-P01-002", "score": 0.4140945076942444, "sibling_score": 0.4140945076942444, "answer_score": null, "sibling_qid": "MUM-2022-07-2135-Q007", "sibling_text": "what tool", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Getting true readings: tool, position and temperature", "cross_family": false }, { "answer_id": "EXHV-080-BF37-003", "score": 0.34812432527542114, "sibling_score": 0.34812432527542114, "answer_score": null, "sibling_qid": "MUM-2025-02-2270-Q007", "sibling_text": "which tools used", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "What clearances are taken after overhaul, how do you check seat and spindle, and the maximum allowances?", "cross_family": true }, { "answer_id": "PROP-RP-001", "score": 0.3361315131187439, "sibling_score": 0.3361315131187439, "answer_score": null, "sibling_qid": "MUM-2022-10-0054-Q010", "sibling_text": "tools used procedure", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Propeller removal — procedure, tools and sequence", "cross_family": true } ] }, { "qid": "MUM-2026-06-3585-Q011", "text": "EGCS- what all sensors present, calibration?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "EGCS / Scrubber", "tid": "MUM-2026-06-3585", "tray": "new", "candidates": [ { "answer_id": "CYL-LINER-P01-002", "score": 0.5219414234161377, "sibling_score": 0.5219414234161377, "answer_score": null, "sibling_qid": "MUM-2026-02-2580-Q004", "sibling_text": "where will u calibrate", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Getting true readings: tool, position and temperature", "cross_family": true }, { "answer_id": "OWS-15PPM-003", "score": 0.5201021432876587, "sibling_score": 0.5201021432876587, "answer_score": null, "sibling_qid": "CHE-2025-10-0303-Q003", "sibling_text": "what r all the sensors fitted in ows", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": true }, { "answer_id": "ESE-P02-002", "score": 0.5173168778419495, "sibling_score": 0.5173168778419495, "answer_score": null, "sibling_qid": "CHE-2026-04-0145-Q005S2", "sibling_text": "calibration procedure for gas detection equipment", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "ESE-P02-02. Oxygen analyser: working principle and calibration", "cross_family": true } ] }, { "qid": "MUM-2026-06-3586-Q001", "text": "Stool space ?", "family": "Ship Construction & Stability", "subtopic": "Stern Frame / Transom", "tid": "MUM-2026-06-3586", "tray": "new", "candidates": [ { "answer_id": "DUS-P5-03", "score": 0.5168519020080566, "sibling_score": 0.5168519020080566, "answer_score": null, "sibling_qid": "NOI-2026-09-0006-Q003", "sibling_text": "transom space", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Stern frame construction, cross-section and rudder-axis sketch", "cross_family": false }, { "answer_id": "PRING-CLR-A-002", "score": 0.487923800945282, "sibling_score": 0.487923800945282, "answer_score": null, "sibling_qid": "KOC-2023-10-1820-Q006", "sibling_text": "butt clearance", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston-ring clearances and calibration — butt, axial, radial, wear limits", "cross_family": true }, { "answer_id": "ESE-P01-003", "score": 0.4681459367275238, "sibling_score": 0.4681459367275238, "answer_score": null, "sibling_qid": "KOC-2026-08-2143-Q005", "sibling_text": "enclosed space", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "General enclosed-space entry procedure as second engineer", "cross_family": true } ] }, { "qid": "MUM-2026-06-3586-Q003", "text": "Bulk carrier cargo residue HME Storage criteria ?", "family": "Cargo Ops - Bulk Carriers", "subtopic": "Bulk Carrier / IMSBC", "tid": "MUM-2026-06-3586", "tray": "new", "candidates": [ { "answer_id": "OILRES-DISCH-TOPIC467-FINAL-004", "score": 0.5751889944076538, "sibling_score": 0.5751889944076538, "answer_score": null, "sibling_qid": "CHE-2025-11-0084-Q005", "sibling_text": "cargo oil residues discharge criteria", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Cargo oil residues and the slop tank — purpose, capacity, handling, discharge criteria and reception facilities", "cross_family": true }, { "answer_id": "IMSBC-BULK-005", "score": 0.5720383524894714, "sibling_score": 0.5720383524894714, "answer_score": null, "sibling_qid": "KOL-2019-08-0306-Q004", "sibling_text": "bulk carrier cargo density regulation", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Bulk cargo density and bulk-carrier safety features (SOLAS XII)", "cross_family": false }, { "answer_id": "CHEM-PA-006", "score": 0.5686577558517456, "sibling_score": 0.5686577558517456, "answer_score": null, "sibling_qid": "KOL-2023-12-0794-Q003", "sibling_text": "if x type cargo what regulation for discharging cargo residues", "sibling_family": "MARPOL - Annex II (NLS)", "via": "sibling", "answer_title": "Category X — special handling, prewash and discharge", "cross_family": true } ] }, { "qid": "MUM-2026-06-3588-Q001", "text": "Significance of marking on compressor head?", "family": "MARPOL - General & Compliance", "subtopic": "Bunker Sample Storage", "tid": "MUM-2026-06-3588", "tray": "new", "candidates": [ { "answer_id": "IP-ENCL-001", "score": 0.5053673982620239, "sibling_score": 0.5053673982620239, "answer_score": null, "sibling_qid": "KOC-2022-08-1192-Q015", "sibling_text": "compressor room motor class and what are the details will be there in the motor plate", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "IP rating of motors — what the numbers mean", "cross_family": true }, { "answer_id": "FCAM-LEAD-P04-002", "score": 0.49595195055007935, "sibling_score": 0.49595195055007935, "answer_score": null, "sibling_qid": "KOL-2023-07-3620-Q004", "sibling_text": "in main engine flywheel marking is not there you have to do the marking of every unit tdc procdure how to do", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Finding TDC when flywheel markings are missing", "cross_family": true }, { "answer_id": "CRANK-217-004", "score": 0.4900122880935669, "sibling_score": 0.4900122880935669, "answer_score": null, "sibling_qid": "MUM-2022-04-2130-Q007", "sibling_text": "significance of punch mark on crankweb tell tale mark he called it as", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankshaft slippage, tell-tale marks and action if found", "cross_family": true } ] }, { "qid": "MUM-2026-06-3590-Q001", "text": "Type of ship and engine.", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "MUM-2026-06-3590", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8335285186767578, "sibling_score": 0.8335285186767578, "answer_score": null, "sibling_qid": "MUM-2025-08-2357-Q001", "sibling_text": "type of ship type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.8273107409477234, "sibling_score": 0.8273107409477234, "answer_score": null, "sibling_qid": "MUM-2026-07-3668-Q004", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7620292901992798, "sibling_score": 0.7620292901992798, "answer_score": null, "sibling_qid": "KOL-2025-12-2031-Q002", "sibling_text": "type of ship and engine sailed engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "MUM-2026-06-3590-Q004", "text": "why Tmon is maintained onboard. ?", "family": "Dual Fuel / Gas Systems", "subtopic": "", "tid": "MUM-2026-06-3590", "tray": "new", "candidates": [ { "answer_id": "TCS-059-P04-012", "score": 0.4208926856517792, "sibling_score": 0.4208926856517792, "answer_score": null, "sibling_qid": "MUM-2026-01-1253-Q002", "sibling_text": "t c condition monitoring", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharger condition monitoring", "cross_family": true }, { "answer_id": "TURBO-CS-P03-014", "score": 0.402138352394104, "sibling_score": 0.402138352394104, "answer_score": null, "sibling_qid": "KOL-2021-10-3468-Q001", "sibling_text": "t c routine maintenance", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Routine maintenance and water-washing; nozzle-ring cleaning", "cross_family": true }, { "answer_id": "MSB-ESB-B-001", "score": 0.39359891414642334, "sibling_score": 0.39359891414642334, "answer_score": 0.3086231127381325, "sibling_qid": "KOC-2023-05-1257-Q001", "sibling_text": "maintenance on msb", "sibling_family": "", "via": "sibling", "answer_title": "Routine maintenance & health check of the MSB", "cross_family": false } ] }, { "qid": "MUM-2026-06-3590-Q005", "text": "why web deflection is taking and how? ", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft Deflection", "tid": "MUM-2026-06-3590", "tray": "new", "candidates": [ { "answer_id": "CRK-DEFL-001", "score": 0.38586166501045227, "sibling_score": 0.38586166501045227, "answer_score": 0.22183447778224943, "sibling_qid": "MUM-2023-07-2738-Q003", "sibling_text": "reason for taking crank web deflection", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Purpose, timing and scope of crankshaft deflection", "cross_family": false }, { "answer_id": "CSD-BF036-004", "score": 0.36119115352630615, "sibling_score": 0.36119115352630615, "answer_score": null, "sibling_qid": "MUM-2022-10-1032-Q005", "sibling_text": "web deflection curve", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "How do you plot the deflection curve — what goes on each axis, what is the datum line, and how do you read it?", "cross_family": false }, { "answer_id": "CRPIN-CHK-P01-005", "score": 0.3481704294681549, "sibling_score": 0.3481704294681549, "answer_score": null, "sibling_qid": "KOL-2022-08-3562-Q002", "sibling_text": "indication of slippage in journal and web how to rectify", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Journal or crankpin slippage — identifying, investigating, rectifying", "cross_family": false } ] }, { "qid": "MUM-2026-06-3591-Q002", "text": "ACB isolation procedure and how to confirm it is isolated ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Transformer Theory", "tid": "MUM-2026-06-3591", "tray": "review", "candidates": [ { "answer_id": "CBKR-D-ISORACK-001", "score": 0.7181261777877808, "sibling_score": 0.7181261777877808, "answer_score": 0.42960084378719327, "sibling_qid": "MUM-2026-06-3570-Q003", "sibling_text": "acb isolation procedure and how to confirm it is isolated", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "How do you safely isolate, rack out, withdraw and prove dead an ACB/VCB before work?", "cross_family": false }, { "answer_id": "CB033-C-001", "score": 0.6030856370925903, "sibling_score": 0.6030856370925903, "answer_score": 0.42186268568038937, "sibling_qid": "MUM-2023-11-1411-Q005", "sibling_text": "acb isolation and checks", "sibling_family": "", "via": "sibling", "answer_title": "How do you carry out maintenance and testing on an ACB / main circuit breaker?", "cross_family": false }, { "answer_id": "MSB-ESB-C-001", "score": 0.44365930557250977, "sibling_score": 0.44365930557250977, "answer_score": null, "sibling_qid": "CHE-2026-02-0340-Q008", "sibling_text": "sequence of automatic isolation", "sibling_family": "", "via": "sibling", "answer_title": "MSB-ESB interconnection, tie breaker/interlock and emergency supply transfer", "cross_family": false } ] }, { "qid": "MUM-2026-06-3592-Q001", "text": "How to check ICCP efficiency ?", "family": "Electrical - ICCP & Cathodic Protection", "subtopic": "", "tid": "MUM-2026-06-3592", "tray": "new", "candidates": [ { "answer_id": "ICCP-119-P01-001", "score": 0.5670761466026306, "sibling_score": 0.5670761466026306, "answer_score": null, "sibling_qid": "MUM-2022-11-2715-Q033", "sibling_text": "iccp and how do we know it is working good", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP — purpose, principle and basic working", "cross_family": false }, { "answer_id": "ICCP-MGPS-002", "score": 0.5477757453918457, "sibling_score": 0.5477757453918457, "answer_score": null, "sibling_qid": "MUM-2026-02-1982-Q005", "sibling_text": "how will you know if your iccp and mgps are performing satisfactorily", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "Knowing ICCP and MGPS are performing satisfactorily", "cross_family": false }, { "answer_id": "ICCP-119-P01-003", "score": 0.4954652786254883, "sibling_score": 0.4954652786254883, "answer_score": null, "sibling_qid": "KOL-2026-01-2948-Q005", "sibling_text": "iccp working how much current", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP values, impressed-current meaning, anode/cathode roles and materials", "cross_family": false } ] }, { "qid": "MUM-2026-06-3592-Q003", "text": "Short circuit test and significance ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Transformer Theory", "tid": "MUM-2026-06-3592", "tray": "new", "candidates": [ { "answer_id": "IOCT-565-004", "score": 0.5830765962600708, "sibling_score": 0.5830765962600708, "answer_score": null, "sibling_qid": "MUM-2026-06-3567-Q006", "sibling_text": "short circuit test", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "How is a short-circuit test carried out?", "cross_family": false }, { "answer_id": "XFMR-THY-B-003", "score": 0.5636311173439026, "sibling_score": 0.5636311173439026, "answer_score": null, "sibling_qid": "MUM-2026-03-2001-Q002", "sibling_text": "short circuit", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Transformer short-circuit (impedance) test and copper-loss measurement", "cross_family": false }, { "answer_id": "PI-211-002", "score": 0.5137690305709839, "sibling_score": 0.5137690305709839, "answer_score": null, "sibling_qid": "MUM-2026-05-3004-Q008", "sibling_text": "what is pi test and significance", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "How the PI test is carried out — equipment, procedure, leakage-current behaviour", "cross_family": true } ] }, { "qid": "MUM-2026-06-3594-Q001", "text": "What is Foundation Field Bus ?", "family": "Electrical - Distribution & MSB", "subtopic": "", "tid": "MUM-2026-06-3594", "tray": "new", "candidates": [ { "answer_id": "OIL-FUEL-TEST-002", "score": 0.4687078595161438, "sibling_score": 0.4687078595161438, "answer_score": null, "sibling_qid": "KOL-2020-07-0418-Q016", "sibling_text": "what is fobas", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "What is FOBAS in fuel-oil analysis?", "cross_family": true }, { "answer_id": "QCV-001", "score": 0.4604485034942627, "sibling_score": 0.4604485034942627, "answer_score": null, "sibling_qid": "KOL-2022-09-3567-Q006", "sibling_text": "fqs system", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Quick closing valve — construction and what it is", "cross_family": true }, { "answer_id": "MSB-ESB-A-001", "score": 0.448757141828537, "sibling_score": 0.448757141828537, "answer_score": null, "sibling_qid": "MUM-2026-02-1944-Q006S2", "sibling_text": "how bus bar connected plc", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Busbars: construction, arrangement, connection, checks and rating", "cross_family": true } ] }, { "qid": "MUM-2026-06-3594-Q003", "text": "How to change the voltage of Zener diode?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Zener / Diode / Rectifier", "tid": "MUM-2026-06-3594", "tray": "review", "candidates": [ { "answer_id": "EPC-P02-03", "score": 0.6580066084861755, "sibling_score": 0.6580066084861755, "answer_score": 0.4900474429130554, "sibling_qid": "KOL-2023-05-2654-Q001", "sibling_text": "zener diode how to control voltage and where excess current go answer through resistance surveyor told me resistance i forget to tell them this things i explain all this thing but answer is through resistance", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Where is a zener diode used on board and why — voltage regulator, AVR, clipper — and explain one application in detail.", "cross_family": false }, { "answer_id": "EPC-P02-01", "score": 0.6498059034347534, "sibling_score": 0.6498059034347534, "answer_score": 0.47559828758239747, "sibling_qid": "KOL-2020-03-2378-Q003", "sibling_text": "zener diode zener voltage application", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a zener diode? Draw its symbol, explain its working principle, and draw and explain its characteristic curve including the zener (breakdown) voltage.", "cross_family": false }, { "answer_id": "AVR-EXC-H-002", "score": 0.4601851999759674, "sibling_score": null, "answer_score": 0.4601851999759674, "sibling_qid": "", "sibling_text": "voltage trimmer adjustment and biasing trimmer reference set point adjuster a potentiometer on the avr or a remote hand trimmer in the panel up higher reference more excitation higher terminal voltage down lower", "sibling_family": "", "via": "answer_title", "answer_title": "Voltage trimmer — adjustment and biasing", "cross_family": false } ] }, { "qid": "MUM-2026-06-3596-Q003", "text": "Type of bearing used in mcc engine ?", "family": "Status & Introduction", "subtopic": "ber", "tid": "MUM-2026-06-3596", "tray": "review", "candidates": [ { "answer_id": "THRUST-BRG-B-001", "score": 0.6704739928245544, "sibling_score": 0.6704739928245544, "answer_score": null, "sibling_qid": "KOC-2021-09-1767-Q007", "sibling_text": "mcc and sulzer crankshaft thrust bearing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Thrust block — construction, location and how thrust reaches the hull", "cross_family": true }, { "answer_id": "MAIN-BRG-D-002", "score": 0.6589920520782471, "sibling_score": 0.6589920520782471, "answer_score": null, "sibling_qid": "KOL-2019-04-1450-Q001", "sibling_text": "difference between me and mcc engine main bearing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main bearing construction, materials and edge design", "cross_family": true }, { "answer_id": "MN-BRG-C-002", "score": 0.6467553973197937, "sibling_score": 0.6467553973197937, "answer_score": null, "sibling_qid": "MUM-2022-10-1025-Q002", "sibling_text": "what are different types of bearings in both me and mcc do we need to carry out bedding and if yes how", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bedding, contact check and fitting of shells", "cross_family": true } ] }, { "qid": "MUM-2026-06-3596-Q004", "text": "How will you order thin shall bearing ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Bearing Nomenclature", "tid": "MUM-2026-06-3596", "tray": "new", "candidates": [ { "answer_id": "BRG-NOM-001", "score": 0.5659144520759583, "sibling_score": 0.5659144520759583, "answer_score": 0.3859502047300339, "sibling_qid": "KOL-2022-05-1679-Q010", "sibling_text": "how you will order bearing if no number is written", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bearing Numbers, Suffixes and What to State When Ordering", "cross_family": false }, { "answer_id": "BRG-NOM-003", "score": 0.5655053853988647, "sibling_score": 0.5655053853988647, "answer_score": 0.40083886981010436, "sibling_qid": "MUM-2026-04-2687-Q005", "sibling_text": "thin shell bearing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Thin-Shell, Bi-Metal and Tri-Metal Bearings — Construction and Why Thin-Shell", "cross_family": false }, { "answer_id": "WMAT-170-003", "score": 0.553803026676178, "sibling_score": 0.553803026676178, "answer_score": 0.40665686428546904, "sibling_qid": "KOL-2016-07-1225-Q006", "sibling_text": "thin shell bearing material and composition", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Thin-shell and thick-shell bearings: design, advantages, developments", "cross_family": false } ] }, { "qid": "MUM-2026-06-3596-Q005", "text": "How many layers and composition ?", "family": "Cargo Ops - Tankers", "subtopic": "IG System", "tid": "MUM-2026-06-3596", "tray": "new", "candidates": [ { "answer_id": "BRG-NOM-003", "score": 0.4866213798522949, "sibling_score": 0.4866213798522949, "answer_score": 0.28752717673778533, "sibling_qid": "KOC-2024-08-1858-Q004", "sibling_text": "shell bearing 5 layers and microns", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Thin-Shell, Bi-Metal and Tri-Metal Bearings — Construction and Why Thin-Shell", "cross_family": true }, { "answer_id": "CBL-INS-B-002", "score": 0.474055677652359, "sibling_score": 0.474055677652359, "answer_score": null, "sibling_qid": "KOC-2024-07-1374-Q009", "sibling_text": "explain all layers internal paul", "sibling_family": "", "via": "sibling", "answer_title": "Layers and construction of a shipboard cable", "cross_family": false }, { "answer_id": "XFMR-THY-G-003", "score": 0.4584227204322815, "sibling_score": 0.4584227204322815, "answer_score": 0.2662498891353607, "sibling_qid": "KOL-2018-06-2201-Q006", "sibling_text": "how laminations are stacked", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "3. Transformer construction: core, laminations and windings", "cross_family": true } ] }, { "qid": "MUM-2026-06-3596-Q007", "text": "Type of dry dock?", "family": "Drydock & Underwater Surveys", "subtopic": "Drydock / Hull Repair / Sea Chest", "tid": "MUM-2026-06-3596", "tray": "review", "candidates": [ { "answer_id": "BLR-TUBE-P01-001", "score": 0.7470855712890625, "sibling_score": 0.7470855712890625, "answer_score": null, "sibling_qid": "MUM-2025-10-1209-Q002", "sibling_text": "types of plans for drydock", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "01. Attaching, fitting and supporting boiler tubes", "cross_family": false }, { "answer_id": "DUS-P1-02", "score": 0.7463961243629456, "sibling_score": 0.7463961243629456, "answer_score": 0.4847309708595276, "sibling_qid": "KOC-2025-07-1044-Q002", "sibling_text": "types of plans for drydock", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Plans, drawings and special tools kept ready for drydock — engine-department view", "cross_family": false }, { "answer_id": "DUS-P1-01", "score": 0.7209005951881409, "sibling_score": 0.7209005951881409, "answer_score": null, "sibling_qid": "KOC-2024-08-0398-Q007", "sibling_text": "dry dock preparation", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Drydock preparation as 2E — full workflow from office confirmation to entry", "cross_family": false } ] }, { "qid": "MUM-2026-06-3596-Q008", "text": "Type of paint on flat bottom ?", "family": "Other Conventions", "subtopic": "AFS / Anti-Fouling", "tid": "MUM-2026-06-3596", "tray": "new", "candidates": [ { "answer_id": "AFS-309-004", "score": 0.5779486894607544, "sibling_score": 0.5779486894607544, "answer_score": 0.3672827690839767, "sibling_qid": "MUM-2026-06-3356-Q010", "sibling_text": "type of paint on hull", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Anti-fouling paint types, biocide-free coatings, and the harm from TBT and cybutryne", "cross_family": false }, { "answer_id": "HULL-PAINT-005", "score": 0.5647223591804504, "sibling_score": 0.5647223591804504, "answer_score": null, "sibling_qid": "MUM-2026-06-3458-Q007", "sibling_text": "bio fouling paint type", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Anti-fouling and silicone (foul-release) coatings, the AFS Convention, and current developments", "cross_family": false }, { "answer_id": "HULL-PAINT-001", "score": 0.5401347875595093, "sibling_score": 0.5401347875595093, "answer_score": 0.3204206436872482, "sibling_qid": "KOL-2020-02-3327-Q002", "sibling_text": "in dry dock surface preparation and types of paint used in different section as bottom area and bott top area anti fauling paints", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Preparing the hull surface before painting in dry dock — cleanliness standard and methods", "cross_family": true } ] }, { "qid": "MUM-2026-06-3596-Q009", "text": "How surface cleaning done ?", "family": "Drydock & Underwater Surveys", "subtopic": "Hull Painting / Antifouling", "tid": "MUM-2026-06-3596", "tray": "new", "candidates": [ { "answer_id": "HULL-PAINT-001", "score": 0.5434369444847107, "sibling_score": 0.5434369444847107, "answer_score": 0.4213809221982956, "sibling_qid": "MUM-2026-09-3888-Q003", "sibling_text": "surface preparation in dry dock", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Preparing the hull surface before painting in dry dock — cleanliness standard and methods", "cross_family": false }, { "answer_id": "TURBO-CS-P03-014", "score": 0.47897496819496155, "sibling_score": 0.47897496819496155, "answer_score": null, "sibling_qid": "KOL-2022-03-3520-Q003", "sibling_text": "t c cleaning procedure and maintenance", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Routine maintenance and water-washing; nozzle-ring cleaning", "cross_family": true }, { "answer_id": "TC-WASH-003", "score": 0.44828659296035767, "sibling_score": 0.44828659296035767, "answer_score": null, "sibling_qid": "KOL-2019-09-3274-Q003", "sibling_text": "grit washing of t c and steps as per manual", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "03. Explain wet washing and dry / grit washing of a turbocharger — method and precautions.", "cross_family": true } ] }, { "qid": "MUM-2026-06-3597-Q001", "text": "Basic Introductions- Ships done, Company sailing with, Pre Sea from? Which Attempt? Asked twice from where you giving orals? Which place?", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-06-3597", "tray": "review", "candidates": [ { "answer_id": "LLST-AB-002", "score": 0.6513063311576843, "sibling_score": 0.6513063311576843, "answer_score": null, "sibling_qid": "MUM-2026-05-3280-Q001", "sibling_text": "what company and what vessels you have sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.6465451121330261, "sibling_score": 0.6465451121330261, "answer_score": null, "sibling_qid": "MUM-2026-05-3248-Q001", "sibling_text": "introduction sea time company pre sea ship type engine type me", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.6316908001899719, "sibling_score": 0.6316908001899719, "answer_score": null, "sibling_qid": "MUM-2026-03-0866-Q001", "sibling_text": "coc attempt internal sirish sir external vishwanathan iyer sir started with what function you are applying how many ships type of ships you did after class 4 pre sea from where how many written cleared what about other functions", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false } ] }, { "qid": "MUM-2026-06-3597-Q004", "text": "Which one is directly dealing with SOPEP?", "family": "MARPOL - Annex I (Oil)", "subtopic": "SOPEP", "tid": "MUM-2026-06-3597", "tray": "new", "candidates": [ { "answer_id": "SOPEP-001", "score": 0.632269561290741, "sibling_score": 0.632269561290741, "answer_score": 0.26711168289184567, "sibling_qid": "KOL-2018-06-0182-Q016", "sibling_text": "sopep", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "SOPEP — Definition, Applicability and the Governing Regulation", "cross_family": false }, { "answer_id": "SOPEP-002", "score": 0.6013820171356201, "sibling_score": 0.6013820171356201, "answer_score": 0.25838263928890226, "sibling_qid": "KOC-2024-04-0335-Q001", "sibling_text": "sopep contents", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "SOPEP — Mandatory Contents, Appendices, Locker and Equipment", "cross_family": false }, { "answer_id": "SOPEP-004", "score": 0.5882969498634338, "sibling_score": 0.5882969498634338, "answer_score": 0.28164944946765896, "sibling_qid": "KOL-2018-08-1861-Q016", "sibling_text": "sopep and smepp", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "SOPEP vs SMPEP and Other Shipboard Plans; Drills", "cross_family": false } ] }, { "qid": "MUM-2026-06-3597-Q008", "text": "Sheer strake. How connected to bulkhead?", "family": "SOLAS", "subtopic": "Shell Plating / Strakes", "tid": "MUM-2026-06-3597", "tray": "new", "candidates": [ { "answer_id": "SHELL-PLT-B-001", "score": 0.5644178986549377, "sibling_score": 0.5644178986549377, "answer_score": 0.49005899429321287, "sibling_qid": "KOC-2026-02-0798-Q007", "sibling_text": "why it is called sheer strake", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Sheer strake — location, why strengthened, deck-edge / gunwale connection", "cross_family": false }, { "answer_id": "DBTB-A-004", "score": 0.532090425491333, "sibling_score": 0.532090425491333, "answer_score": null, "sibling_qid": "MUM-2026-05-3215-Q001", "sibling_text": "torsion box in container location connection to collision bulkhead", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Torsion box: construction and arrangement in a container ship", "cross_family": false }, { "answer_id": "BSBH-420-002", "score": 0.5199747681617737, "sibling_score": 0.5199747681617737, "answer_score": null, "sibling_qid": "KOC-2026-01-0781-Q005", "sibling_text": "cross section of forward of bulk head", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Fore-end / forepeak construction forward of the collision bulkhead — members and cross-section", "cross_family": false } ] }, { "qid": "MUM-2026-06-3597-Q009", "text": "Types of bulkhead? How bulkheads are joined?", "family": "SOLAS - Fire Safety", "subtopic": "A-60 / B-Class", "tid": "MUM-2026-06-3597", "tray": "review", "candidates": [ { "answer_id": "A60-BCLASS-001", "score": 0.662465512752533, "sibling_score": 0.662465512752533, "answer_score": null, "sibling_qid": "KOC-2023-07-0200-Q004", "sibling_text": "a class and a60 types of bulkhead", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "A-60 / Class ‘A’ fire division — what it is", "cross_family": false }, { "answer_id": "SFP-AB-002", "score": 0.6316917538642883, "sibling_score": 0.6316917538642883, "answer_score": null, "sibling_qid": "MUM-2026-09-3882-Q007", "sibling_text": "class a bulkhead", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "What is an A-class division?", "cross_family": false }, { "answer_id": "BHD-TYPE-A-001", "score": 0.6289016604423523, "sibling_score": 0.6289016604423523, "answer_score": 0.49314974844455717, "sibling_qid": "KOL-2025-07-1000-Q005", "sibling_text": "bulkhead types", "sibling_family": "", "via": "sibling", "answer_title": "Bulkheads — types, classification, functions and purpose", "cross_family": false } ] }, { "qid": "MUM-2026-06-3597-Q010", "text": "Collison Bulkhead and why L/20?", "family": "SOLAS - Fire Safety", "subtopic": "A-60 / B-Class", "tid": "MUM-2026-06-3597", "tray": "new", "candidates": [ { "answer_id": "BHD-TYPE-B-001", "score": 0.5890146493911743, "sibling_score": 0.5890146493911743, "answer_score": 0.45796961486339566, "sibling_qid": "MUM-2026-07-3714-Q004", "sibling_text": "aft collision bulkhead", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Collision bulkhead — definition, location and SOLAS regulations", "cross_family": false }, { "answer_id": "BHD-TYPE-B-002", "score": 0.5568828582763672, "sibling_score": 0.5568828582763672, "answer_score": 0.46798633337020873, "sibling_qid": "MUM-2026-07-3680-Q003", "sibling_text": "collision bulkhead strength feature new regulation", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Collision bulkhead vs ordinary transverse bulkhead — construction and strength", "cross_family": false }, { "answer_id": "DS-P04-002", "score": 0.42521891891956326, "sibling_score": null, "answer_score": 0.42521891891956326, "sibling_qid": "", "sibling_text": "flooding subdivision margin line downflooding and survivability purpose of subdivision limit the extent of flooding using transverse and where fitted longitudinal watertight bulkheads the collision bulkhead protects the forward end margin line at least 76 mm 3 in below the upper surface of the bulkhead deck at side the deterministic limit removed for ships built on or after 1 jan 2009", "sibling_family": "", "via": "answer_title", "answer_title": "Flooding, subdivision, margin line, downflooding and survivability", "cross_family": false } ] }, { "qid": "MUM-2026-06-3599-Q001", "text": "Type of ships sailed ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-06-3599", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8047345280647278, "sibling_score": 0.8047345280647278, "answer_score": null, "sibling_qid": "MUM-2026-02-1272-Q002", "sibling_text": "type of ships sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7896885871887207, "sibling_score": 0.7896885871887207, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7689732909202576, "sibling_score": 0.7689732909202576, "answer_score": 0.5079576551914214, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "MUM-2026-06-3599-Q002", "text": "Type of Main engine, diesel generator and boiler ?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-06-3599", "tray": "review", "candidates": [ { "answer_id": "AEME-DIFF-001", "score": 0.7594985961914062, "sibling_score": 0.7594985961914062, "answer_score": 0.5248387813568115, "sibling_qid": "MUM-2026-05-3082-Q001", "sibling_text": "type of engine boiler aux engine generator", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-001", "score": 0.7543010115623474, "sibling_score": 0.7543010115623474, "answer_score": 0.5022845089435577, "sibling_qid": "MUM-2026-06-3637-Q001", "sibling_text": "type of main engine generator boiler purifier compressor", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "1. Turbocharger type — main engine vs generator engine", "cross_family": false }, { "answer_id": "ENG-NOM-006", "score": 0.7072166800498962, "sibling_score": 0.7072166800498962, "answer_score": null, "sibling_qid": "MUM-2026-04-1320-Q003", "sibling_text": "main engine and generator specifications", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Short-form asks: SMC-C, LMC, and ME vs MC quickly", "cross_family": false } ] }, { "qid": "MUM-2026-06-3599-Q004", "text": "Losses in propeller transmission ?", "family": "Shafting, Propeller & Rudder", "subtopic": "Stern Tube / Shafting / Propeller / Rudder", "tid": "MUM-2026-06-3599", "tray": "new", "candidates": [ { "answer_id": "SPR-STERN-001", "score": 0.6261782050132751, "sibling_score": 0.6261782050132751, "answer_score": 0.45092317163944245, "sibling_qid": "MUM-2026-09-3973-Q005", "sibling_text": "efficiency of propeller", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Propeller design factors, efficiency, handedness & material", "cross_family": false }, { "answer_id": "STT-BRG-008", "score": 0.6100831627845764, "sibling_score": 0.6100831627845764, "answer_score": null, "sibling_qid": "MUM-2026-06-3497-Q007", "sibling_text": "heavy loaded propeller", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "7. Stern tube bearings — number, size, fixing, clearance, weardown and high-temperature", "cross_family": false }, { "answer_id": "RES-PROP-P01-004", "score": 0.6060800552368164, "sibling_score": 0.6060800552368164, "answer_score": 0.5257639557123184, "sibling_qid": "CHE-2026-04-0152-Q006", "sibling_text": "propeller power ratio", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "From resistance to power: effective power, propulsive coefficient, the Admiralty coefficient and model testing", "cross_family": false } ] }, { "qid": "MUM-2026-06-3601-Q006", "text": "What's is kenter shackle ?", "family": "Auxiliary Equipment", "subtopic": "Shackle / Wire Rope", "tid": "MUM-2026-06-3601", "tray": "new", "candidates": [ { "answer_id": "ANCH-CHN-A-002", "score": 0.6315175890922546, "sibling_score": 0.6315175890922546, "answer_score": 0.2704011663794517, "sibling_qid": "MUM-2023-07-0112-Q007", "sibling_text": "kenter shackle", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Chain construction: material, stud links & joining shackles", "cross_family": false }, { "answer_id": "ANCH-CHN-A-003", "score": 0.5152278542518616, "sibling_score": 0.5152278542518616, "answer_score": null, "sibling_qid": "MUM-2026-05-3187-Q003S3", "sibling_text": "what is one shackle", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Equipment Number & how cable length is decided", "cross_family": false }, { "answer_id": "ANCH-CHN-A-004", "score": 0.4331201910972595, "sibling_score": 0.4331201910972595, "answer_score": 0.30134017020463943, "sibling_qid": "KOC-2024-01-1828-Q005", "sibling_text": "how chain connected to anchor swivel block each cable connected by d shackle", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Cable arrangement: anchor to bitter end, and the bitter-end release", "cross_family": false } ] }, { "qid": "MUM-2026-06-3601-Q009", "text": "Fwg working principle?", "family": "Heat Exchangers & Coolers", "subtopic": "FWG / RO", "tid": "MUM-2026-06-3601", "tray": "new", "candidates": [ { "answer_id": "FWG-RO-003", "score": 0.5425681471824646, "sibling_score": 0.5425681471824646, "answer_score": 0.3199626922607422, "sibling_qid": "CHE-2026-05-0533-Q008", "sibling_text": "checks if fwg not getting production", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "The FWG is not producing enough water or its efficiency has dropped. Reasons, checks and action?", "cross_family": false }, { "answer_id": "FWG-RO-001", "score": 0.48383089900016785, "sibling_score": 0.48383089900016785, "answer_score": 0.35684822499752045, "sibling_qid": "MUM-2025-09-1197-Q006", "sibling_text": "fwg working principle did not accept low pressure evaporation and cooling", "sibling_family": "Fresh Water & Domestic Systems", "via": "sibling", "answer_title": "How is vacuum created in the FWG, why does it run under vacuum, and what if the vacuum will not come?", "cross_family": true }, { "answer_id": "OWS-15PPM-008", "score": 0.44438058137893677, "sibling_score": 0.44438058137893677, "answer_score": null, "sibling_qid": "MUM-2025-11-2486-Q007", "sibling_text": "ows why flush with fw", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": true } ] }, { "qid": "MUM-2026-06-3602-Q001", "text": "Which attempt ?", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-06-3602", "tray": "new", "candidates": [ { "answer_id": "ANG-ENC-005", "score": 0.4391024708747864, "sibling_score": 0.4391024708747864, "answer_score": null, "sibling_qid": "CHE-2025-08-0514-Q001", "sibling_text": "if one fail what will happen", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Encoder failure: redundancy, offset, backup and emergency starting", "cross_family": true }, { "answer_id": "IGAT-583-004", "score": 0.43461278080940247, "sibling_score": 0.43461278080940247, "answer_score": null, "sibling_qid": "KOC-2021-07-0013-Q006", "sibling_text": "ig fail what action int", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "As Second Engineer, what actions do you take if the inert gas plant of a crude oil tanker is repeatedly tripping on IG high temperature?", "cross_family": true }, { "answer_id": "CHEM-PA-011", "score": 0.432343065738678, "sibling_score": 0.432343065738678, "answer_score": null, "sibling_qid": "MUM-2026-03-2938-Q002", "sibling_text": "which vessel", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "What ‘en route’ means for Annex II discharge", "cross_family": false } ] }, { "qid": "MUM-2026-06-3602-Q002", "text": "Type of ship sailed ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-06-3602", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.84583979845047, "sibling_score": 0.84583979845047, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8448489904403687, "sibling_score": 0.8448489904403687, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7927221059799194, "sibling_score": 0.7927221059799194, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "MUM-2026-06-3602-Q003", "text": "How many orals cleared ?", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-06-3602", "tray": "new", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.4219733476638794, "sibling_score": 0.4219733476638794, "answer_score": null, "sibling_qid": "MUM-2026-05-3187-Q001", "sibling_text": "status of other orals and written", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": true }, { "answer_id": "ACCT-583-A-001", "score": 0.40174657106399536, "sibling_score": 0.40174657106399536, "answer_score": null, "sibling_qid": "MUM-2024-10-2246-Q006", "sibling_text": "boiler accumulation test passes done with orals", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Explain the boiler accumulation pressure test — what it is, its purpose, and how it is carried out (including when and at what interval)", "cross_family": true }, { "answer_id": "OWS-ORB-006", "score": 0.3420584797859192, "sibling_score": 0.3420584797859192, "answer_score": null, "sibling_qid": "CHE-2026-05-0634-Q009", "sibling_text": "orb all codes", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "6. Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": true } ] }, { "qid": "MUM-2026-06-3602-Q005", "text": "Kind of cargo ?", "family": "Cargo Ops - Tankers", "subtopic": "Cargo System / Cargo Line Valves / Double Block and Bleed Valve", "tid": "MUM-2026-06-3602", "tray": "review", "candidates": [ { "answer_id": "TKR-TYPE-004", "score": 0.7905558943748474, "sibling_score": 0.7905558943748474, "answer_score": 0.506541496515274, "sibling_qid": "MUM-2025-09-0481-Q004", "sibling_text": "type of cargo", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "4. Tanker cargo-type classification, examples, and sweet vs sour crude", "cross_family": false }, { "answer_id": "IBC-BCH-B-002", "score": 0.7556145787239075, "sibling_score": 0.7556145787239075, "answer_score": null, "sibling_qid": "MUM-2026-05-3156-Q003", "sibling_text": "types of cargo x y z and os", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Chemical cargo categories — MARPOL Annex II and IBC Chapters 17 & 18", "cross_family": false }, { "answer_id": "COT-01", "score": 0.700689435005188, "sibling_score": 0.700689435005188, "answer_score": null, "sibling_qid": "MUM-2023-10-0138-Q001", "sibling_text": "types of tankers cargos carried", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Oil-tanker types, definitions and cargo capability", "cross_family": false } ] }, { "qid": "MUM-2026-06-3602-Q007", "text": "What is dual classification ?", "family": "Surveys - Statutory", "subtopic": "IACS / Classification Society", "tid": "MUM-2026-06-3602", "tray": "review", "candidates": [ { "answer_id": "IACS-324-007", "score": 0.694451630115509, "sibling_score": 0.694451630115509, "answer_score": 0.37721576541662216, "sibling_qid": "KOC-2024-01-0282-Q004", "sibling_text": "double class and dual class", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "7. What is double class or dual class?", "cross_family": false }, { "answer_id": "SURV-GEN-002", "score": 0.4772467613220215, "sibling_score": 0.4772467613220215, "answer_score": 0.35802069008350373, "sibling_qid": "KOL-2023-10-4028-Q010", "sibling_text": "classification survey and statutory survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Statutory survey versus classification survey", "cross_family": false }, { "answer_id": "IACS-324-005", "score": 0.46973690390586853, "sibling_score": 0.46973690390586853, "answer_score": null, "sibling_qid": "CHE-2026-04-0161-Q006", "sibling_text": "difference between classification society and ro", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "5. What is the difference between a classification society, a Recognized Organization, and statutory certification?", "cross_family": false } ] }, { "qid": "MUM-2026-06-3602-Q008", "text": "What are the requirements of emergency escape route ?", "family": "Safety Management & Emergency", "subtopic": "", "tid": "MUM-2026-06-3602", "tray": "new", "candidates": [ { "answer_id": "FCP-001", "score": 0.6058409214019775, "sibling_score": 0.6058409214019775, "answer_score": null, "sibling_qid": "KOC-2025-02-0546-Q002", "sibling_text": "fire control plan content expecting emerg escape route", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "What is the fire control plan, and what does it show — including bulkhead types and escape routes?", "cross_family": true }, { "answer_id": "LSA-CODE-BF044-004", "score": 0.5743701457977295, "sibling_score": 0.5743701457977295, "answer_score": 0.5076913654804229, "sibling_qid": "MUM-2026-04-0920-Q007", "sibling_text": "emergency escape regulations", "sibling_family": "SOLAS - General (HOLD)", "via": "sibling", "answer_title": "What is the regulation for the use of the emergency escape route and escape appliances?", "cross_family": true }, { "answer_id": "EFP-A-001", "score": 0.48943787813186646, "sibling_score": 0.48943787813186646, "answer_score": null, "sibling_qid": "MUM-2024-10-0212-Q001", "sibling_text": "emergency fire pump requirements piping system locations flow requirements minimum condition power sources etc", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "What does SOLAS / the FSS Code require of an emergency fire pump — location, capacity, suction, power and availability?", "cross_family": true } ] }, { "qid": "MUM-2026-06-3602-Q012", "text": "What are the different code adopted IMO ?", "family": "IMO Structure & Conventions", "subtopic": "IMO / Committees / Codes", "tid": "MUM-2026-06-3602", "tray": "new", "candidates": [ { "answer_id": "IMO-CODES-P03-001", "score": 0.5701314806938171, "sibling_score": 0.5701314806938171, "answer_score": 0.4303391695022583, "sibling_qid": "KOC-2025-12-0750-Q009", "sibling_text": "list out various codes with related convention", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Important IMO conventions and codes: parent links", "cross_family": false }, { "answer_id": "ISM-ELEM-002", "score": 0.547196626663208, "sibling_score": 0.547196626663208, "answer_score": 0.4105967715382576, "sibling_qid": "MUM-2026-03-0822-Q002", "sibling_text": "ism codes", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the ISM Code?", "cross_family": true }, { "answer_id": "IGC-IGF-001", "score": 0.5420979261398315, "sibling_score": 0.5420979261398315, "answer_score": null, "sibling_qid": "MUM-2026-02-0742-Q001", "sibling_text": "igc code and igf code", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "IGC Code vs IGF Code — what they are and the difference", "cross_family": true } ] }, { "qid": "MUM-2026-06-3602-Q014", "text": "What is PA manual...who approves?", "family": "Cargo Ops - Tankers", "subtopic": "P&A Manual", "tid": "MUM-2026-06-3602", "tray": "new", "candidates": [ { "answer_id": "CHEM-PA-003", "score": 0.5863154530525208, "sibling_score": 0.5863154530525208, "answer_score": null, "sibling_qid": "MUM-2022-11-0068-Q001", "sibling_text": "p a manual contents approved by", "sibling_family": "MARPOL - Annex II (NLS)", "via": "sibling", "answer_title": "The Procedures & Arrangements (P&A) Manual", "cross_family": true }, { "answer_id": "PA-MAN-001", "score": 0.5497336983680725, "sibling_score": 0.5497336983680725, "answer_score": 0.32594010084867475, "sibling_qid": "MUM-2022-08-0037-Q001", "sibling_text": "pa manual", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What is the P&A Manual (Procedures and Arrangements Manual)?", "cross_family": false }, { "answer_id": "CHEM-PA-001", "score": 0.5453135967254639, "sibling_score": 0.5453135967254639, "answer_score": null, "sibling_qid": "MUM-2024-07-2766-Q003", "sibling_text": "what is p and a manual who writes it who approves it why it is required", "sibling_family": "MARPOL - Annex II (NLS)", "via": "sibling", "answer_title": "Scope and applicability of MARPOL Annex II", "cross_family": true } ] }, { "qid": "MUM-2026-06-3603-Q003", "text": "how upper continuous deck is connected to side she'll in bulk carrier ?", "family": "SOLAS", "subtopic": "Shell Plating / Strakes", "tid": "MUM-2026-06-3603", "tray": "review", "candidates": [ { "answer_id": "SHELL-PLT-B-001", "score": 0.7876421809196472, "sibling_score": 0.7876421809196472, "answer_score": 0.49082148671150205, "sibling_qid": "MUM-2025-10-0536-Q004", "sibling_text": "how upper continuous deck is connected to side she ll in bulk carrier", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Sheer strake — location, why strengthened, deck-edge / gunwale connection", "cross_family": false }, { "answer_id": "SHIPTYPE-BTC-003", "score": 0.5843589901924133, "sibling_score": 0.5843589901924133, "answer_score": null, "sibling_qid": "KOL-2017-11-0127-Q002", "sibling_text": "type of ship bulk carrier 3 safety feature one is double side skin tell other two 2 bulk carrier self unloading mechanism 3 continuous hatchway steller plate oster plate", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "General cargo ship vs bulk carrier — constructional differences and bulk-carrier safety features", "cross_family": false }, { "answer_id": "DBTB-A-004", "score": 0.5651028752326965, "sibling_score": 0.5651028752326965, "answer_score": 0.4744096100330353, "sibling_qid": "MUM-2026-05-3215-Q001", "sibling_text": "torsion box in container location connection to collision bulkhead", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Torsion box: construction and arrangement in a container ship", "cross_family": false } ] }, { "qid": "MUM-2026-06-3603-Q009", "text": "HNS protocol ?", "family": "Other Conventions", "subtopic": "HNS / OPRC / Salvage", "tid": "MUM-2026-06-3603", "tray": "new", "candidates": [ { "answer_id": "OPRC-SALV-004", "score": 0.6296507716178894, "sibling_score": 0.6296507716178894, "answer_score": 0.40809450447559353, "sibling_qid": "MUM-2025-09-0448-Q017", "sibling_text": "hns convention", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "HNS — two different conventions, and the OPRC connection", "cross_family": false }, { "answer_id": "AUC-PLC-01", "score": 0.5312334299087524, "sibling_score": 0.5312334299087524, "answer_score": 0.2709250062704086, "sibling_qid": "MUM-2023-11-1415-Q001", "sibling_text": "hart protocol", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "HART protocol and smart transmitters — 4–20 mA plus digital", "cross_family": true }, { "answer_id": "MEB-MEC-P03-003", "score": 0.3111821487545967, "sibling_score": null, "answer_score": 0.3111821487545967, "sibling_qid": "", "sibling_text": "me hydraulic power supply hps safeties", "sibling_family": "", "via": "answer_title", "answer_title": "ME hydraulic power supply (HPS) & safeties", "cross_family": false } ] }, { "qid": "MUM-2026-06-3604-Q003", "text": "How it is different from other ship ?", "family": "Cargo Ops - Tankers", "subtopic": "Cargo Tank Construction", "tid": "MUM-2026-06-3604", "tray": "new", "candidates": [ { "answer_id": "TKR-TYPE-001", "score": 0.5864505171775818, "sibling_score": 0.5864505171775818, "answer_score": null, "sibling_qid": "CHE-2025-10-0516-Q002", "sibling_text": "type of ships sailed i told product and crude tanker he asked constructional difference between them", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "1. Crude oil tanker vs product tanker / carrier — construction and cargo-area differences", "cross_family": false }, { "answer_id": "LPG-LNG-001", "score": 0.5739587545394897, "sibling_score": 0.5739587545394897, "answer_score": null, "sibling_qid": "KOC-2024-12-0490-Q002", "sibling_text": "how lpg differs from other ships", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "LPG vs LNG – properties, carriage and comparison", "cross_family": true }, { "answer_id": "DB-TBOX-C-002", "score": 0.570640504360199, "sibling_score": 0.570640504360199, "answer_score": null, "sibling_qid": "KOL-2025-10-1097-Q003", "sibling_text": "what makes container ship different from other type", "sibling_family": "", "via": "sibling", "answer_title": "Container ship — corner-casting load path, most-stressed part, and the torsion box", "cross_family": false } ] }, { "qid": "MUM-2026-06-3604-Q006", "text": "Bulbous bow ?", "family": "Ship Construction & Stability", "subtopic": "DEFINITION", "tid": "MUM-2026-06-3604", "tray": "new", "candidates": [ { "answer_id": "PPS-230-006", "score": 0.5635225772857666, "sibling_score": 0.5635225772857666, "answer_score": 0.3317027449607849, "sibling_qid": "MUM-2026-02-0782-Q011", "sibling_text": "bulbous bow how it is connected to ship shape of bow", "sibling_family": "", "via": "sibling", "answer_title": "Fore-end / fore-peak structure: draw and describe", "cross_family": false }, { "answer_id": "DRG-B-009", "score": 0.4569272994995117, "sibling_score": 0.4569272994995117, "answer_score": null, "sibling_qid": "KOL-2020-09-0422-Q008", "sibling_text": "bowsing tackle", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Bowsing tackle and tricing pendant", "cross_family": true }, { "answer_id": "SHIPTYPE-BTC-002", "score": 0.4376934766769409, "sibling_score": 0.4376934766769409, "answer_score": null, "sibling_qid": "CHE-2025-11-0082-Q008", "sibling_text": "why bow flare is big in container compared to bulk carrier", "sibling_family": "", "via": "sibling", "answer_title": "Why a container ship has more bow flare than a bulk carrier or tanker", "cross_family": false } ] }, { "qid": "MUM-2026-06-3605-Q004", "text": "Purpose of Hand Brake in Mitsubishi Purifier?", "family": "Purifier & Centrifuges", "subtopic": "FO/LO/DO Purifier", "tid": "MUM-2026-06-3605", "tray": "review", "candidates": [ { "answer_id": "PURIF-172-001", "score": 0.7196108102798462, "sibling_score": 0.7196108102798462, "answer_score": 0.4026486620306969, "sibling_qid": "MUM-2026-05-3153-Q006", "sibling_text": "why purifier has hand brake", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Purifier not picking up speed — drive, clutch, brake, shear pin", "cross_family": false }, { "answer_id": "PURIF-BOWL-P02-001", "score": 0.5113930106163025, "sibling_score": 0.5113930106163025, "answer_score": null, "sibling_qid": "KOL-2025-12-1827-Q009", "sibling_text": "manual starting of purifier", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Bowl opening, closing & manual desludging — mechanism, manual operation, failure causes", "cross_family": false }, { "answer_id": "PURIF-BOWL-P02-002", "score": 0.510434627532959, "sibling_score": 0.510434627532959, "answer_score": null, "sibling_qid": "CHE-2023-11-0393-Q008", "sibling_text": "why do you think that friction pad is fitted on purifier", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Drive, rated RPM, overload, vibration / wobbling & dynamic balancing — causes and troubleshooting", "cross_family": false } ] }, { "qid": "MUM-2026-06-3605-Q005", "text": "Boiler Working Pressure and safety valve setting regulations?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2026-06-3605", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-001", "score": 0.8039910793304443, "sibling_score": 0.8039910793304443, "answer_score": null, "sibling_qid": "CHE-2026-09-3931-Q006", "sibling_text": "boiler safety valve pressure setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.7628452181816101, "sibling_score": 0.7628452181816101, "answer_score": null, "sibling_qid": "CHE-2026-03-0497-Q002", "sibling_text": "how do you do pressure setting of boiler safety valve expecting gaging tool both type", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.7543855309486389, "sibling_score": 0.7543855309486389, "answer_score": null, "sibling_qid": "KOC-2026-05-0034-Q010", "sibling_text": "boiler safety valve types and how safety valve is set complete procedures", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "MUM-2026-06-3606-Q001", "text": "Stern lube is leaking and water is flooding in engine room, can we change the seal of we have spare on board?", "family": "2-Stroke - Operations & Casualty", "subtopic": "ER Round", "tid": "MUM-2026-06-3606", "tray": "review", "candidates": [ { "answer_id": "STERN-TUBE-P04-001", "score": 0.6839790344238281, "sibling_score": 0.6839790344238281, "answer_score": 0.5315214067697525, "sibling_qid": "KOC-2025-02-2060-Q012", "sibling_text": "stern tube seal leaking what will you do int bunkering", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Stern tube or seal leakage at sea: diagnosis and 2/E actions", "cross_family": true }, { "answer_id": "STT-BRG-006", "score": 0.6616723537445068, "sibling_score": 0.6616723537445068, "answer_score": 0.5079943358898162, "sibling_qid": "KOL-2017-01-1265-Q005", "sibling_text": "stern tube leakage cant change seal how to attend the problem", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "5. Seal leakage — corrective action at sea and in dry dock", "cross_family": true }, { "answer_id": "STERN-P03-002", "score": 0.6593549251556396, "sibling_score": 0.6593549251556396, "answer_score": 0.5290295004844665, "sibling_qid": "MUM-2023-08-0952-Q003", "sibling_text": "about stern tube seal can u replace stern tube seal at sea", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Stern-tube seals: arrangement, air/lip seals, renewal/replacement and the vulcanized split-seal fitting method", "cross_family": true } ] }, { "qid": "MUM-2026-06-3607-Q001", "text": "Type of ship sailed ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-06-3607", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8458397388458252, "sibling_score": 0.8458397388458252, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8448489904403687, "sibling_score": 0.8448489904403687, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7927220463752747, "sibling_score": 0.7927220463752747, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "MUM-2026-06-3607-Q002", "text": "Status of written? When was preparatory course was done( I think it's worth to mention here- they looking at this also)", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-06-3607", "tray": "new", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.5220345854759216, "sibling_score": 0.5220345854759216, "answer_score": null, "sibling_qid": "MUM-2026-03-1294-Q001", "sibling_text": "status of writtens and orals", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": true }, { "answer_id": "DUS-P1-02", "score": 0.5198337435722351, "sibling_score": 0.5198337435722351, "answer_score": null, "sibling_qid": "KOL-2025-08-3851-Q006", "sibling_text": "drydock plans rudder checks cross questions what about other written oral exams status told waiting for naval written result to come all other paper cleared", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Plans, drawings and special tools kept ready for drydock — engine-department view", "cross_family": true }, { "answer_id": "EXHV-P01-001", "score": 0.5127159953117371, "sibling_score": 0.5127159953117371, "answer_score": null, "sibling_qid": "CHE-2026-01-0101-Q001", "sibling_text": "types of ship done and exam status", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false } ] }, { "qid": "MUM-2026-06-3607-Q003", "text": "Type of boiler ,purifier, main engine on your ship?", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "MUM-2026-06-3607", "tray": "review", "candidates": [ { "answer_id": "TC-TROUBLE-338-001", "score": 0.7436257600784302, "sibling_score": 0.7436257600784302, "answer_score": null, "sibling_qid": "MUM-2026-06-3637-Q001", "sibling_text": "type of main engine generator boiler purifier compressor", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "1. Turbocharger type — main engine vs generator engine", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.6685795187950134, "sibling_score": 0.6685795187950134, "answer_score": null, "sibling_qid": "MUM-2026-05-3082-Q001", "sibling_text": "type of engine boiler aux engine generator", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.6332184672355652, "sibling_score": 0.6332184672355652, "answer_score": null, "sibling_qid": "MUM-2026-09-3882-Q001", "sibling_text": "introduction types of ship main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "MUM-2026-06-3608-Q005", "text": "Type of valve in bilge system And why ?", "family": "General Marine Engineering", "subtopic": "Bilge line Valves", "tid": "MUM-2026-06-3608", "tray": "review", "candidates": [ { "answer_id": "PCD-P04-01", "score": 0.7241973280906677, "sibling_score": 0.7241973280906677, "answer_score": 0.46258038878440855, "sibling_qid": "MUM-2026-03-1306-Q014S7", "sibling_text": "type of valve used in bilge system", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "01. Bilge pump — type, why not centrifugal, and the suction valve chest", "cross_family": false }, { "answer_id": "PCD-P04-02", "score": 0.5983812212944031, "sibling_score": 0.5983812212944031, "answer_score": 0.4771806240081787, "sibling_qid": "KOL-2025-09-1087-Q009", "sibling_text": "emergency bilge injection valve", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "02. Emergency bilge suction — the bilge injection valve, testing and SOLAS requirements", "cross_family": true }, { "answer_id": "PCD-P04-05", "score": 0.597868025302887, "sibling_score": 0.597868025302887, "answer_score": null, "sibling_qid": "KOC-2025-08-1936-Q001", "sibling_text": "reciprocating bilge pump valves explain", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "05. Reciprocating pump — construction, working and how you know it is discharging", "cross_family": true } ] }, { "qid": "MUM-2026-06-3608-Q008", "text": "What type of force in purifier? Difference between centripetal and centrifugal force ?", "family": "Engineering Mechanics", "subtopic": "Centrifugal / Centripetal Force", "tid": "MUM-2026-06-3608", "tray": "new", "candidates": [ { "answer_id": "PCD-P02-04", "score": 0.527543306350708, "sibling_score": 0.527543306350708, "answer_score": null, "sibling_qid": "MUM-2025-11-2491-Q004", "sibling_text": "double end centrifugal pp explain", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Double-entry / double-suction centrifugal pump", "cross_family": true }, { "answer_id": "PPS-622-001", "score": 0.5193215608596802, "sibling_score": 0.5193215608596802, "answer_score": null, "sibling_qid": "KOL-2017-09-1324-Q004", "sibling_text": "centrifugal pp priming", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Why is priming needed in a centrifugal pump, when is a priming device required, why does a gear pump not need one, and how do you start a centrifugal pump?", "cross_family": true }, { "answer_id": "PURIF-172-005", "score": 0.5147623419761658, "sibling_score": 0.5147623419761658, "answer_score": 0.39764990359544755, "sibling_qid": "MUM-2026-05-3256-Q001", "sibling_text": "how centrifugal filter work construction etc", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Principle, disc stack, separation formula & interface", "cross_family": true } ] }, { "qid": "MUM-2026-06-3609-Q001", "text": "FWG efficiency. how to keep maximum?", "family": "Fresh Water & Domestic Systems", "subtopic": "", "tid": "MUM-2026-06-3609", "tray": "new", "candidates": [ { "answer_id": "FWG-RO-003", "score": 0.5352062582969666, "sibling_score": 0.5352062582969666, "answer_score": 0.32945992797613144, "sibling_qid": "MUM-2026-07-3669-Q001", "sibling_text": "fwg not producing efficiently reasons what to do", "sibling_family": "Fresh Water & Domestic Systems", "via": "sibling", "answer_title": "The FWG is not producing enough water or its efficiency has dropped. Reasons, checks and action?", "cross_family": false }, { "answer_id": "XFMR-THY-E-006", "score": 0.41988605260849, "sibling_score": 0.41988605260849, "answer_score": null, "sibling_qid": "KOL-2022-07-2587-Q004", "sibling_text": "max efficiency on transformer", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Efficiency and all-day efficiency", "cross_family": true }, { "answer_id": "CPP-ATC-01", "score": 0.40742671489715576, "sibling_score": 0.40742671489715576, "answer_score": null, "sibling_qid": "KOL-2022-03-1668-Q005", "sibling_text": "efficient asking about some efficiency graph scavenge and", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "2-stroke versus 4-stroke air-side comparison — equal-power reading", "cross_family": true } ] }, { "qid": "MUM-2026-06-3609-Q003", "text": "Funnel flap checks ?", "family": "Auxiliary Equipment", "subtopic": "FUNNEL FLAPS", "tid": "MUM-2026-06-3609", "tray": "new", "candidates": [ { "answer_id": "QCV-003", "score": 0.5850628614425659, "sibling_score": 0.5850628614425659, "answer_score": null, "sibling_qid": "KOL-2017-08-0105-Q005", "sibling_text": "maintenance done on funnel flaps and vents during saturday routines when to test quickclosing valves regulation", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Quick closing valve — overhaul, maintenance and testing", "cross_family": false }, { "answer_id": "CO2-SYS-003", "score": 0.5365874171257019, "sibling_score": 0.5365874171257019, "answer_score": null, "sibling_qid": "CHE-2026-04-0257-Q019", "sibling_text": "how will you confirm funnel flap sealed properly", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 system — use decisions, suitability and post-release checks", "cross_family": true }, { "answer_id": "SMK-FUNL-BF01-004", "score": 0.5262410640716553, "sibling_score": 0.5262410640716553, "answer_score": null, "sibling_qid": "CHE-2026-04-0257-Q011", "sibling_text": "funnel found spark what you will check", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "There are sparks from the funnel on arrival in port — what is the reason and your action?", "cross_family": true } ] }, { "qid": "MUM-2026-06-3610-Q004", "text": "How to know the breach of the rudder ?", "family": "", "subtopic": "", "tid": "MUM-2026-06-3610", "tray": "new", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.5860145092010498, "sibling_score": 0.5860145092010498, "answer_score": 0.39538304656744, "sibling_qid": "CHE-2026-04-0523-Q010", "sibling_text": "rudder breach", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "ESP-B-002", "score": 0.5562883615493774, "sibling_score": 0.5562883615493774, "answer_score": null, "sibling_qid": "MUM-2025-07-2338-Q003", "sibling_text": "iapp certificate survey 4 how to know the breach of the rudder 5 esp", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Close-up survey, thickness gauging, substantial corrosion & renewal criteria", "cross_family": false }, { "answer_id": "DDI-001", "score": 0.5335724353790283, "sibling_score": 0.5335724353790283, "answer_score": null, "sibling_qid": "KOL-2025-09-1083-Q009", "sibling_text": "how to find if rudder is damaged in dry dock", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "You have just docked and the water is pumped out — what do you check on the hull, propeller, rudder, sea chest and underwater valves? Where do you gauge hull thickness, and how do you find a damaged rudder?", "cross_family": false } ] }, { "qid": "MUM-2026-06-3610-Q006", "text": "Type of ship and engine ?", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "MUM-2026-06-3610", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8335285186767578, "sibling_score": 0.8335285186767578, "answer_score": null, "sibling_qid": "MUM-2025-08-2357-Q001", "sibling_text": "type of ship type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.8273107409477234, "sibling_score": 0.8273107409477234, "answer_score": null, "sibling_qid": "MUM-2026-07-3668-Q004", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7620292901992798, "sibling_score": 0.7620292901992798, "answer_score": null, "sibling_qid": "KOL-2025-12-2031-Q002", "sibling_text": "type of ship and engine sailed engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "MUM-2026-06-3611-Q002", "text": "thyristor and thermistor difference.?", "family": "Automation & Controls", "subtopic": "Thermistor / Thermostat", "tid": "MUM-2026-06-3611", "tray": "review", "candidates": [ { "answer_id": "AUC-SEN-06", "score": 0.7891215085983276, "sibling_score": 0.7891215085983276, "answer_score": 0.5648602604866028, "sibling_qid": "KOL-2024-01-4033-Q004", "sibling_text": "difference between thyristor thermostat thermistor", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Thermistor versus thermostat — bimetallic and wax-element principles", "cross_family": false }, { "answer_id": "SCR-306-B-001", "score": 0.7746703624725342, "sibling_score": 0.7746703624725342, "answer_score": 0.5214429289102555, "sibling_qid": "MUM-2024-02-1426-Q003", "sibling_text": "difference between a thermistor and thyristor", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Thyristor / SCR vs other semiconductor devices", "cross_family": true }, { "answer_id": "SCR-306-A-001", "score": 0.7215980291366577, "sibling_score": 0.7215980291366577, "answer_score": null, "sibling_qid": "MUM-2025-08-1573-Q006", "sibling_text": "thyrister and thermister", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What an SCR is and how it works", "cross_family": true } ] }, { "qid": "MUM-2026-06-3611-Q003", "text": "Status of other functions ?", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-06-3611", "tray": "new", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.5272049903869629, "sibling_score": 0.5272049903869629, "answer_score": null, "sibling_qid": "MUM-2026-05-3187-Q001", "sibling_text": "status of other orals and written", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": true }, { "answer_id": "IMO-CODES-P03-002", "score": 0.5135148763656616, "sibling_score": 0.5135148763656616, "answer_score": null, "sibling_qid": "MUM-2026-03-0815-Q003", "sibling_text": "which function", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": true }, { "answer_id": "AVR-EXC-B-001", "score": 0.5103517174720764, "sibling_score": 0.5103517174720764, "answer_score": null, "sibling_qid": "KOC-2025-12-1676-Q004", "sibling_text": "explain status avr", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Explain the AVR working principle and control-loop operation.", "cross_family": true } ] }, { "qid": "MUM-2026-06-3611-Q006", "text": "T/G motor and starter type. Why DOL used..?", "family": "Electrical - Motors & Starters", "subtopic": "Type of Starter Decision", "tid": "MUM-2026-06-3611", "tray": "new", "candidates": [ { "answer_id": "TG-MOTOR-001", "score": 0.6356502175331116, "sibling_score": 0.6356502175331116, "answer_score": null, "sibling_qid": "MUM-2026-07-3812-Q004", "sibling_text": "type of motor in t g and starter and why", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What type of motor is used for the turning gear, and what type of rotor does it have?", "cross_family": false }, { "answer_id": "STR-DEC-A-001", "score": 0.635025143623352, "sibling_score": 0.635025143623352, "answer_score": 0.4366764187812805, "sibling_qid": "KOL-2025-10-1095-Q011", "sibling_text": "type of motor in t g and starter and why", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "STARTER-DEC-B-001", "score": 0.5913641452789307, "sibling_score": 0.5913641452789307, "answer_score": 0.4240027815103531, "sibling_qid": "MUM-2026-03-2019-Q003", "sibling_text": "which range of motors is dol starter used", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Selecting the right starter for a motor", "cross_family": false } ] }, { "qid": "MUM-2026-06-3611-Q008", "text": "How many contactor in star delta?", "family": "Electrical - Motors & Starters", "subtopic": "Star-Delta Starter", "tid": "MUM-2026-06-3611", "tray": "new", "candidates": [ { "answer_id": "SDST-A-001", "score": 0.6177138090133667, "sibling_score": 0.6177138090133667, "answer_score": 0.47325751185417175, "sibling_qid": "KOC-2021-09-1146-Q001", "sibling_text": "star delta starter draw and explain a special attention to star contactors", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false }, { "answer_id": "IMSP-004", "score": 0.6077442169189453, "sibling_score": 0.6077442169189453, "answer_score": 0.42229723036289213, "sibling_qid": "MUM-2026-01-1913-Q005", "sibling_text": "star delta starter all components", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Explain the star-delta starter, and what you find inside it when you open it — its components.", "cross_family": false }, { "answer_id": "SDST-C-001", "score": 0.6058512330055237, "sibling_score": 0.6058512330055237, "answer_score": 0.4830959439277649, "sibling_qid": "KOC-2025-12-1656-Q010", "sibling_text": "what happen in star delta if motor runs in star and if both contacts make that means in star and delta", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Star-delta faults - stuck in star, both contactors in, dead after changeover, symptoms and safe action.", "cross_family": false } ] }, { "qid": "MUM-2026-06-3616-Q003", "text": "EICU function working?", "family": "2-Stroke - ME-C / Electronic Engine", "subtopic": "", "tid": "MUM-2026-06-3616", "tray": "new", "candidates": [ { "answer_id": "EICU-MAN-P01-001", "score": 0.5699453353881836, "sibling_score": 0.5699453353881836, "answer_score": 0.3892331779003143, "sibling_qid": "KOC-2026-08-2158-Q013", "sibling_text": "function of eicu and ecu", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "EICU, ECU, CCU, ACU — the ME control units and what is controlled electronically", "cross_family": true }, { "answer_id": "MEB-MEC-P03-002", "score": 0.5631539225578308, "sibling_score": 0.5631539225578308, "answer_score": 0.28270543813705445, "sibling_qid": "KOL-2026-01-4081-Q002", "sibling_text": "ccu function eicu function", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "ME camless control architecture — ECS, CCU, EICU, MPC", "cross_family": true }, { "answer_id": "EICU-MAN-P01-004", "score": 0.5313946604728699, "sibling_score": 0.5313946604728699, "answer_score": 0.3429178178310394, "sibling_qid": "KOL-2025-07-1993-Q003", "sibling_text": "ecu and eicu", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Control-unit failure — CCU / ECU / EICU: can you still run the engine?", "cross_family": true } ] }, { "qid": "MUM-2026-06-3616-Q004", "text": "IN ME engine which component stop working everything stops ?", "family": "2-Stroke - ME-C / Electronic Engine", "subtopic": "", "tid": "MUM-2026-06-3616", "tray": "new", "candidates": [ { "answer_id": "EICU-MAN-P01-001", "score": 0.5723304152488708, "sibling_score": 0.5723304152488708, "answer_score": null, "sibling_qid": "KOL-2026-05-0051-Q002", "sibling_text": "in me engine which component stop working everything stops xxxx what is the function of ecu what it does functuon of ccu and fiva", "sibling_family": "", "via": "sibling", "answer_title": "EICU, ECU, CCU, ACU — the ME control units and what is controlled electronically", "cross_family": false }, { "answer_id": "MCC-MEB-P02-003", "score": 0.558781623840332, "sibling_score": 0.558781623840332, "answer_score": null, "sibling_qid": "MUM-2024-07-1084-Q004", "sibling_text": "me engine tha", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Conventional MC / MC-C versus electronic ME — the practical operating differences", "cross_family": true }, { "answer_id": "ME-NOSTART-002", "score": 0.5433202981948853, "sibling_score": 0.5433202981948853, "answer_score": null, "sibling_qid": "MUM-2026-09-3864-Q003", "sibling_text": "what if main engine fails to start", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Will not start after a kick, or after maintenance / decarb — causes and immediate actions", "cross_family": true } ] }, { "qid": "MUM-2026-06-3616-Q006", "text": "Boiler combustion interlock & what is interlock What is the purpose of it. How it works?", "family": "Boilers - Operations & Firing", "subtopic": "Automatic Combustion Control", "tid": "MUM-2026-06-3616", "tray": "review", "candidates": [ { "answer_id": "BFEYE-340-001", "score": 0.7496272325515747, "sibling_score": 0.7496272325515747, "answer_score": 0.5162954211235046, "sibling_qid": "KOL-2026-05-0051-Q003", "sibling_text": "boiler combustion interlock xxx what is interlock has the purpose of it how it works", "sibling_family": "", "via": "sibling", "answer_title": "Flame failure: why it is a boiler safety, trip logic, alarm and testing", "cross_family": false }, { "answer_id": "ACC-603-001", "score": 0.6848507523536682, "sibling_score": 0.6848507523536682, "answer_score": null, "sibling_qid": "KOL-2020-03-1531-Q005", "sibling_text": "boiler auto combustion control system working", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "The automatic combustion control system — how it works, the start sequence, and the emergency arrangement", "cross_family": false }, { "answer_id": "ACC-603-002", "score": 0.6776914000511169, "sibling_score": 0.6776914000511169, "answer_score": 0.5364546060562133, "sibling_qid": "KOL-2019-06-1459-Q002", "sibling_text": "boiler combustion equipments trips and safeties in combustion control", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Equipment, trips and safeties in the boiler combustion control system", "cross_family": false } ] }, { "qid": "MUM-2026-06-3616-Q008", "text": "TC clearance (KLM) ?", "family": "Turbocharger", "subtopic": "", "tid": "MUM-2026-06-3616", "tray": "new", "candidates": [ { "answer_id": "TC-KLM-330-001", "score": 0.5709877610206604, "sibling_score": 0.5709877610206604, "answer_score": 0.2742464333772659, "sibling_qid": "MUM-2026-03-2638-Q005", "sibling_text": "clearances to be taken in tc", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "What are turbocharger K, L and M clearances, and how is each one derived?", "cross_family": false }, { "answer_id": "TC-CS-P01-006", "score": 0.47642314434051514, "sibling_score": 0.47642314434051514, "answer_score": 0.24940012395381927, "sibling_qid": "KOC-2024-01-1826-Q004", "sibling_text": "t c overhaul clearance", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "F·Turbocharger overhaul and clearances (ME and AE)", "cross_family": false }, { "answer_id": "TC-OVHL-002", "score": 0.4730362594127655, "sibling_score": 0.4730362594127655, "answer_score": null, "sibling_qid": "MUM-2025-08-2388-Q005", "sibling_text": "ae tc in place full overhaul with all clearances and values", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Auxiliary-engine turbocharger overhaul and checks", "cross_family": false } ] }, { "qid": "MUM-2026-06-3616-Q014", "text": "Compressor terminal exchanged how to run compressor & we can run or not why not?", "family": "Turbocharger", "subtopic": "TC Construction", "tid": "MUM-2026-06-3616", "tray": "new", "candidates": [ { "answer_id": "SUP-CHG-003", "score": 0.5891491174697876, "sibling_score": 0.5891491174697876, "answer_score": null, "sibling_qid": "MUM-2025-10-2461-Q005", "sibling_text": "why compressor not used in place of t c", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharging versus mechanical supercharging — why not an engine-driven compressor?", "cross_family": false }, { "answer_id": "CAP-CTRL-002", "score": 0.5742762088775635, "sibling_score": 0.5742762088775635, "answer_score": null, "sibling_qid": "KOL-2017-01-1267-Q002", "sibling_text": "refer compressor unloader working", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "CG-002 · How the cylinder-unloader mechanism works", "cross_family": true }, { "answer_id": "MAC-598-003", "score": 0.5620105266571045, "sibling_score": 0.5620105266571045, "answer_score": null, "sibling_qid": "MUM-2022-10-2713-Q006", "sibling_text": "compressor running continuously", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "The compressor is not filling the bottle, or is taking longer than usual, or running continuously on low amps — checks and actions as 2/E", "cross_family": true } ] }, { "qid": "MUM-2026-06-3616-Q017", "text": " Function of CCU and FIVA ?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "MC-C vs MEB Engine", "tid": "MUM-2026-06-3616", "tray": "new", "candidates": [ { "answer_id": "MEB-MEC-P03-002", "score": 0.5905724763870239, "sibling_score": 0.5905724763870239, "answer_score": null, "sibling_qid": "KOL-2026-02-1830-Q001", "sibling_text": "function of ccu", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "ME camless control architecture — ECS, CCU, EICU, MPC", "cross_family": false }, { "answer_id": "MEB-MEC-P03-001", "score": 0.5541345477104187, "sibling_score": 0.5541345477104187, "answer_score": null, "sibling_qid": "KOL-2023-02-4019-Q009", "sibling_text": "fiva elfi valve does me b has ccu", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "ME-B vs ME-C — the core difference", "cross_family": false }, { "answer_id": "FIVA-220-003", "score": 0.4824928045272827, "sibling_score": 0.4824928045272827, "answer_score": 0.3165278285741806, "sibling_qid": "KOL-2026-07-4261-Q002", "sibling_text": "ecu ccu fiva full working from where it takes input and how it operates what type of signal does ccu give to fiva for operation", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "FIVA control signal, controller type, voice-coil drive and fail-safe behaviour", "cross_family": false } ] }, { "qid": "MUM-2026-06-3617-Q001", "text": "What is PS in engine ?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-06-3617", "tray": "new", "candidates": [ { "answer_id": "PMS-392-001", "score": 0.5356160402297974, "sibling_score": 0.5356160402297974, "answer_score": null, "sibling_qid": "KOC-2022-01-1779-Q007", "sibling_text": "what is pms pms of main engine", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is planned maintenance / PMS — components, salient features and advantages?", "cross_family": true }, { "answer_id": "MIP-264-003", "score": 0.4906769394874573, "sibling_score": 0.4906769394874573, "answer_score": null, "sibling_qid": "MUM-2026-01-1248-Q002", "sibling_text": "engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Calculate engine power: IHP and BHP, and where each is measured", "cross_family": false }, { "answer_id": "ENG-NOM-006", "score": 0.4768160581588745, "sibling_score": 0.4768160581588745, "answer_score": null, "sibling_qid": "CHE-2026-03-0181-Q001", "sibling_text": "engine specification", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Short-form asks: SMC-C, LMC, and ME vs MC quickly", "cross_family": false } ] }, { "qid": "MUM-2026-06-3618-Q001", "text": "Didn’t asked ship nor engine configuration ?", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-06-3618", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.7287496328353882, "sibling_score": 0.7287496328353882, "answer_score": null, "sibling_qid": "CHE-2026-04-0373-Q001S6", "sibling_text": "type of ship specification of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.7118476629257202, "sibling_score": 0.7118476629257202, "answer_score": null, "sibling_qid": "MUM-2026-07-3668-Q004", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.6873777508735657, "sibling_score": 0.6873777508735657, "answer_score": null, "sibling_qid": "CHE-2026-05-0614-Q001", "sibling_text": "start from type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "MUM-2026-06-3618-Q003", "text": "Difference in secondary and primary forces ?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Moments", "tid": "MUM-2026-06-3618", "tray": "new", "candidates": [ { "answer_id": "CCE-322-002", "score": 0.4168597459793091, "sibling_score": 0.4168597459793091, "answer_score": 0.3300372689962387, "sibling_qid": "CHE-2025-08-0176-Q001", "sibling_text": "deciding difference between primary and secondary explosion in crack case mmd chennai external venugopal internal s s moorthy function electrical", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Primary versus secondary crankcase explosion", "cross_family": false }, { "answer_id": "PF-A-004", "score": 0.40991276502609253, "sibling_score": 0.40991276502609253, "answer_score": null, "sibling_qid": "KOC-2025-11-1624-Q009", "sibling_text": "why power is different", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "The bare 'power factor' prompt — and the drills it triggers", "cross_family": true }, { "answer_id": "EMD-MEAE-001", "score": 0.40442121028900146, "sibling_score": 0.40442121028900146, "answer_score": null, "sibling_qid": "MUM-2026-01-1253-Q006", "sibling_text": "difference in foundations of me ae", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "1. ME vs AE foundation — rigid chocking against resilient mounting", "cross_family": false } ] }, { "qid": "MUM-2026-06-3618-Q004", "text": "Bed plate parts ?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Bedplate / A-Frame", "tid": "MUM-2026-06-3618", "tray": "review", "candidates": [ { "answer_id": "FWFB-P02-007", "score": 0.6721695065498352, "sibling_score": 0.6721695065498352, "answer_score": null, "sibling_qid": "MUM-2026-03-2952-Q007", "sibling_text": "what type of bedplate", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Transverse and longitudinal girders: arrangement and purpose", "cross_family": false }, { "answer_id": "CHK-330-004", "score": 0.6383854746818542, "sibling_score": 0.6383854746818542, "answer_score": 0.4321694552898407, "sibling_qid": "MUM-2026-03-1306-Q014S4", "sibling_text": "bed plate parts choking arrangement alignment of shaft intermediate shaft take out procedure", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Chocking arrangement on the main engine bedplate seating", "cross_family": false }, { "answer_id": "BED-CHOCK-001", "score": 0.6032798886299133, "sibling_score": 0.6032798886299133, "answer_score": null, "sibling_qid": "MUM-2023-08-0952-Q004", "sibling_text": "how to fix bed plate on ship", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "How is the main-engine bedplate fixed to the ship's structure?", "cross_family": false } ] }, { "qid": "MUM-2026-06-3618-Q005", "text": "Choking arrangement ?", "family": "2-Stroke - Components (Other)", "subtopic": "", "tid": "MUM-2026-06-3618", "tray": "new", "candidates": [ { "answer_id": "BED-CHOCK-005", "score": 0.5409486293792725, "sibling_score": 0.5409486293792725, "answer_score": null, "sibling_qid": "MUM-2026-05-3144-Q004", "sibling_text": "chocks arrangement", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Explain the HDB, jack-bolt and chock arrangement for a main-engine bedplate.", "cross_family": true }, { "answer_id": "CHK-RM-001", "score": 0.5408457517623901, "sibling_score": 0.5408457517623901, "answer_score": null, "sibling_qid": "MUM-2026-07-3770-Q004", "sibling_text": "chocks arrangement", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What are chocks? Function, types, where fitted and how placed — which have the biggest area, and how does the bedplate connect to the hull?", "cross_family": true }, { "answer_id": "CHK-330-002", "score": 0.533049464225769, "sibling_score": 0.533049464225769, "answer_score": null, "sibling_qid": "MUM-2026-05-3161-Q001", "sibling_text": "how chokes are fitted", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Types of chocks, their material, and how they are made and fitted", "cross_family": true } ] }, { "qid": "MUM-2026-06-3619-Q001", "text": "Type of ship?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-06-3619", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8362351655960083, "sibling_score": 0.8362351655960083, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8017287850379944, "sibling_score": 0.8017287850379944, "answer_score": 0.5469861209392547, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8002189993858337, "sibling_score": 0.8002189993858337, "answer_score": 0.521619999408722, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2026-06-3619-Q004", "text": "flame arrestor construction and working?", "family": "Electrical - Motors & Starters", "subtopic": "Rotor / Stator", "tid": "MUM-2026-06-3619", "tray": "new", "candidates": [ { "answer_id": "VENT-HD-004", "score": 0.588334321975708, "sibling_score": 0.588334321975708, "answer_score": null, "sibling_qid": "MUM-2026-02-2549-Q004", "sibling_text": "vent head construction flame arrestor inspection", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Ball-float type tank air vent head — construction and working", "cross_family": true }, { "answer_id": "WELD-A-001", "score": 0.5775202512741089, "sibling_score": 0.5775202512741089, "answer_score": 0.45507872998714444, "sibling_qid": "MUM-2023-09-2743-Q006", "sibling_text": "flashback arrestor flame arrestor", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Flashback arrestor — location, purpose, working and maintenance", "cross_family": true }, { "answer_id": "EXD-EXI-A-002", "score": 0.5555842518806458, "sibling_score": 0.5555842518806458, "answer_score": null, "sibling_qid": "CHE-2025-12-0324-Q001", "sibling_text": "flame proof equipment explain explain how the flam contained with in the equipment construction details", "sibling_family": "", "via": "sibling", "answer_title": "Ex d (flameproof / explosion-proof) — construction, shipboard applications and maintenance", "cross_family": false } ] }, { "qid": "MUM-2026-06-3619-Q007", "text": "how to prepare for CIC survey ?", "family": "Surveys - Statutory", "subtopic": "Electrical Survey", "tid": "MUM-2026-06-3619", "tray": "new", "candidates": [ { "answer_id": "ESP-B-001", "score": 0.5340602993965149, "sibling_score": 0.5340602993965149, "answer_score": null, "sibling_qid": "MUM-2026-06-3627-Q001", "sibling_text": "prep for esp survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "How an ESP survey is carried out — conduct, engine-room preparation & 2/E duties", "cross_family": false }, { "answer_id": "ELEC-SURV-007", "score": 0.52557373046875, "sibling_score": 0.52557373046875, "answer_score": null, "sibling_qid": "MUM-2026-02-1953-Q003", "sibling_text": "for msb survey what all preparation you will do", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Main switchboard survey & ACB testing", "cross_family": false }, { "answer_id": "IOPP-191-001", "score": 0.5186748504638672, "sibling_score": 0.5186748504638672, "answer_score": null, "sibling_qid": "MUM-2026-03-2635-Q001", "sibling_text": "prepare for iopp survey all", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Preparing for and demonstrating the IOPP survey as Second Engineer", "cross_family": true } ] }, { "qid": "MUM-2026-06-3619-Q009", "text": "Many cross question in CIC and IOPP question?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "VIT Mechanism", "tid": "MUM-2026-06-3619", "tray": "new", "candidates": [ { "answer_id": "ICCP-119-P01-001", "score": 0.6273979544639587, "sibling_score": 0.6273979544639587, "answer_score": null, "sibling_qid": "KOC-2024-11-1439-Q009", "sibling_text": "iccp and lot of cross question", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP — purpose, principle and basic working", "cross_family": true }, { "answer_id": "FIVA-220-003", "score": 0.6062699556350708, "sibling_score": 0.6062699556350708, "answer_score": null, "sibling_qid": "MUM-2026-05-3217-Q015", "sibling_text": "many cross question on fiva", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "FIVA control signal, controller type, voice-coil drive and fail-safe behaviour", "cross_family": false }, { "answer_id": "CII-P01-001", "score": 0.5953224897384644, "sibling_score": 0.5953224897384644, "answer_score": null, "sibling_qid": "MUM-2025-12-2880-Q006", "sibling_text": "cii and many cross question", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is CII and what is its purpose?", "cross_family": true } ] }, { "qid": "MUM-2026-06-3620-Q001", "text": "FWG efficiency dropped why ?", "family": "Workshop & Welding", "subtopic": "Boiler Plate Replacement", "tid": "MUM-2026-06-3620", "tray": "new", "candidates": [ { "answer_id": "FWG-RO-003", "score": 0.528708815574646, "sibling_score": 0.528708815574646, "answer_score": 0.41519292891025544, "sibling_qid": "MUM-2026-03-1306-Q010", "sibling_text": "fwg not producing efficiently reasons what to do", "sibling_family": "Fresh Water & Domestic Systems", "via": "sibling", "answer_title": "The FWG is not producing enough water or its efficiency has dropped. Reasons, checks and action?", "cross_family": true }, { "answer_id": "AIRCOMP-PERF-002", "score": 0.44339483976364136, "sibling_score": 0.44339483976364136, "answer_score": null, "sibling_qid": "KOL-2016-08-1235-Q007", "sibling_text": "air compressor efficiency dropped reasons", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "What are the causes and remedies for reduced or deteriorated main air-compressor performance?", "cross_family": true }, { "answer_id": "EGTP-P02-004", "score": 0.44296586513519287, "sibling_score": 0.44296586513519287, "answer_score": null, "sibling_qid": "KOL-2022-04-1917-Q005", "sibling_text": "compression fall off comp efficiency reduction", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Compression Ratio — Value and Why It Falls With Time", "cross_family": true } ] }, { "qid": "MUM-2026-06-3620-Q003", "text": "What is air seal and working ?", "family": "Pumps - Centrifugal & PD", "subtopic": "Labyrinth Seal", "tid": "MUM-2026-06-3620", "tray": "new", "candidates": [ { "answer_id": "STERN-P03-002", "score": 0.5249528884887695, "sibling_score": 0.5249528884887695, "answer_score": 0.36968804001808164, "sibling_qid": "MUM-2026-05-3267-Q012", "sibling_text": "air guard seal", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Stern-tube seals: arrangement, air/lip seals, renewal/replacement and the vulcanized split-seal fitting method", "cross_family": true }, { "answer_id": "LAB-SEAL-001", "score": 0.49634602665901184, "sibling_score": 0.49634602665901184, "answer_score": 0.40034494698047635, "sibling_qid": "CHE-2025-08-0422-Q006", "sibling_text": "labyrinth seal working", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Labyrinth seal — location, purpose, construction and working principle", "cross_family": false }, { "answer_id": "PCD-P03-03", "score": 0.4658482074737549, "sibling_score": 0.4658482074737549, "answer_score": null, "sibling_qid": "KOC-2025-10-1964-Q001", "sibling_text": "draw mechanical seal and sealing", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Mechanical seal — construction, materials, fitting, removal and leakage", "cross_family": false } ] }, { "qid": "MUM-2026-06-3620-Q009", "text": "Crane SWL how to check?", "family": "Auxiliary Equipment", "subtopic": "Engine Room Crane", "tid": "MUM-2026-06-3620", "tray": "review", "candidates": [ { "answer_id": "CRANE-ER-005", "score": 0.6752899289131165, "sibling_score": 0.6752899289131165, "answer_score": null, "sibling_qid": "KOC-2025-10-1957-Q010", "sibling_text": "e r crane checks swl brake hook limit switches", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Limit switches, cut-outs & response to crane faults or failure", "cross_family": false }, { "answer_id": "ERC-345-004", "score": 0.672874391078949, "sibling_score": 0.672874391078949, "answer_score": null, "sibling_qid": "MUM-2026-06-3578-Q002", "sibling_text": "er crane testing for swl", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Load test, SWL and survey", "cross_family": false }, { "answer_id": "CRANE-ER-001", "score": 0.6674050688743591, "sibling_score": 0.6674050688743591, "answer_score": 0.4754582017660141, "sibling_qid": "KOC-2025-10-1946-Q015", "sibling_text": "checks on crane", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Pre-use safety, maintenance & certification checks on the ER crane", "cross_family": false } ] }, { "qid": "MUM-2026-06-3621-Q001", "text": "Type of ships done ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-06-3621", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8279352784156799, "sibling_score": 0.8279352784156799, "answer_score": null, "sibling_qid": "MUM-2026-02-1280-Q001", "sibling_text": "type of ship done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7439349889755249, "sibling_score": 0.7439349889755249, "answer_score": 0.4575815796852112, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.7105927467346191, "sibling_score": 0.7105927467346191, "answer_score": 0.4678203076124191, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2026-06-3622-Q002", "text": "Ism and TQM, similarity and difference where are they mentioned all in detail ? ", "family": "ISM Code", "subtopic": "TQM / Quality Management", "tid": "MUM-2026-06-3622", "tray": "new", "candidates": [ { "answer_id": "WIDAS-SMK-007", "score": 0.5242123603820801, "sibling_score": 0.5242123603820801, "answer_score": null, "sibling_qid": "MUM-2026-03-0855-Q003", "sibling_text": "diff between iso ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Smoke sampling line — testing, confirming clear, and what is in the tube", "cross_family": false }, { "answer_id": "ISM-ELEM-003", "score": 0.4892415404319763, "sibling_score": 0.4892415404319763, "answer_score": 0.3328680917620659, "sibling_qid": "MUM-2026-03-2941-Q004", "sibling_text": "ism full form and chapters", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": false }, { "answer_id": "PMS-392-002", "score": 0.4799838364124298, "sibling_score": 0.4799838364124298, "answer_score": null, "sibling_qid": "KOL-2021-04-1584-Q007", "sibling_text": "similarity between ism and pms few cross", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "How is PMS linked with the ISM Code and SOLAS maintenance requirements?", "cross_family": true } ] }, { "qid": "MUM-2026-06-3622-Q003", "text": "SOLAS all codes and explanation ?", "family": "SOLAS - General (HOLD)", "subtopic": "", "tid": "MUM-2026-06-3622", "tray": "new", "candidates": [ { "answer_id": "IMO-CODES-P03-001", "score": 0.5487617254257202, "sibling_score": 0.5487617254257202, "answer_score": null, "sibling_qid": "MUM-2026-06-3645-Q007", "sibling_text": "codes under solas", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Important IMO conventions and codes: parent links", "cross_family": true }, { "answer_id": "FSS-CODE-001", "score": 0.5126978754997253, "sibling_score": 0.5126978754997253, "answer_score": 0.3529111802577972, "sibling_qid": "MUM-2026-06-3597-Q006", "sibling_text": "fss codes explain all", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "What is the FSS Code, its status under SOLAS, and why is it a separate code rather than text inside Chapter II-2?", "cross_family": true }, { "answer_id": "OWS-ORB-006", "score": 0.510810375213623, "sibling_score": 0.510810375213623, "answer_score": null, "sibling_qid": "CHE-2026-05-0634-Q009", "sibling_text": "orb all codes", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "6. Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": true } ] }, { "qid": "MUM-2026-06-3622-Q004", "text": "can a non class be Ro?", "family": "Surveys - Statutory", "subtopic": "PSC / Flag / RO / CIC / MoU", "tid": "MUM-2026-06-3622", "tray": "review", "candidates": [ { "answer_id": "PSC-SURV-P01-003", "score": 0.808020293712616, "sibling_score": 0.808020293712616, "answer_score": 0.2950555860996246, "sibling_qid": "MUM-2025-09-0448-Q011", "sibling_text": "can a non class be ro", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the difference between a Recognised Organisation (RO) and a classification society?", "cross_family": false }, { "answer_id": "IACS-324-005", "score": 0.5421954393386841, "sibling_score": 0.5421954393386841, "answer_score": null, "sibling_qid": "KOC-2024-01-0269-Q011", "sibling_text": "diffrence between class and ro", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "5. What is the difference between a classification society, a Recognized Organization, and statutory certification?", "cross_family": false }, { "answer_id": "IACS-324-003", "score": 0.509794294834137, "sibling_score": 0.509794294834137, "answer_score": null, "sibling_qid": "KOC-2023-08-0216-Q007", "sibling_text": "what is ro how classification society become ro", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "3. What is a Recognized Organization, how is it recognized by a flag State, and how can a classification society become one?", "cross_family": false } ] }, { "qid": "MUM-2026-06-3622-Q011", "text": " RO code ?explain ? structure of RO code ? flag Ro and class differences and similarities ?", "family": "Fresh Water & Domestic Systems", "subtopic": "FWG / RO", "tid": "MUM-2026-06-3622", "tray": "new", "candidates": [ { "answer_id": "PSC-SURV-P01-003", "score": 0.6050388813018799, "sibling_score": 0.6050388813018799, "answer_score": 0.42085057199001313, "sibling_qid": "KOL-2021-07-0529-Q004", "sibling_text": "diff between ro and class", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the difference between a Recognised Organisation (RO) and a classification society?", "cross_family": true }, { "answer_id": "IACS-324-005", "score": 0.5724167227745056, "sibling_score": 0.5724167227745056, "answer_score": null, "sibling_qid": "KOC-2024-01-0269-Q011", "sibling_text": "diffrence between class and ro", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "5. What is the difference between a classification society, a Recognized Organization, and statutory certification?", "cross_family": true }, { "answer_id": "IACS-324-003", "score": 0.5521205067634583, "sibling_score": 0.5521205067634583, "answer_score": null, "sibling_qid": "KOC-2023-12-0255-Q002", "sibling_text": "how ro is recognized by any flag state steps", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "3. What is a Recognized Organization, how is it recognized by a flag State, and how can a classification society become one?", "cross_family": true } ] }, { "qid": "MUM-2026-06-3623-Q004", "text": "is IMO and HSSC same, what is their relation?", "family": "Surveys - Statutory", "subtopic": "HSSC", "tid": "MUM-2026-06-3623", "tray": "new", "candidates": [ { "answer_id": "HSSC-001", "score": 0.5356284379959106, "sibling_score": 0.5356284379959106, "answer_score": 0.3532371014356613, "sibling_qid": "MUM-2026-09-3989-Q009", "sibling_text": "hssc", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is HSSC — the Harmonised System of Survey and Certification? Explain the harmonised survey system and programme, and what the \"HSSC code\" is.", "cross_family": false }, { "answer_id": "OPRC-SALV-004", "score": 0.5343944430351257, "sibling_score": 0.5343944430351257, "answer_score": null, "sibling_qid": "MUM-2026-09-3965-Q002", "sibling_text": "hssc", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "HNS — two different conventions, and the OPRC connection", "cross_family": false }, { "answer_id": "IMO-5PIL-001", "score": 0.4576174318790436, "sibling_score": 0.4576174318790436, "answer_score": 0.3541746377944946, "sibling_qid": "MUM-2025-05-0252-Q004", "sibling_text": "structure of imo", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Structure of IMO — the main organs", "cross_family": true } ] }, { "qid": "MUM-2026-06-3623-Q005", "text": "is ism also part of HSSC ?", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "MUM-2026-06-3623", "tray": "new", "candidates": [ { "answer_id": "ISM-SMC-B-001", "score": 0.4936102628707886, "sibling_score": 0.4936102628707886, "answer_score": null, "sibling_qid": "KOL-2019-02-0259-Q005", "sibling_text": "ism doc smc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "SMC — purpose, contents, issue and validity", "cross_family": false }, { "answer_id": "ISM-SMC-B-002", "score": 0.48742005228996277, "sibling_score": 0.48742005228996277, "answer_score": null, "sibling_qid": "KOC-2024-10-0426-Q006", "sibling_text": "ism code interim smc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Interim SMC — occasions, procedure and validity", "cross_family": false }, { "answer_id": "ISM-DPA-002", "score": 0.48098239302635193, "sibling_score": 0.48098239302635193, "answer_score": null, "sibling_qid": "KOC-2023-03-0172-Q004", "sibling_text": "ism who is responsible for ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "DPA basis : which convention, which code, and who is responsible for ISM", "cross_family": false } ] }, { "qid": "MUM-2026-06-3623-Q006", "text": "validity of SEQ certificate and radio certificate?", "family": "Surveys - Statutory", "subtopic": "Safety Equipment Survey", "tid": "MUM-2026-06-3623", "tray": "review", "candidates": [ { "answer_id": "CERT-LIST-P02-004", "score": 0.8300711512565613, "sibling_score": 0.8300711512565613, "answer_score": 0.3746431767940521, "sibling_qid": "MUM-2026-02-0774-Q003", "sibling_text": "validity of seq certificate and radio certificate", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Validity, renewal, interim certificates and e-certificate verification", "cross_family": false }, { "answer_id": "SEEMP-123-B-003", "score": 0.5956343412399292, "sibling_score": 0.5956343412399292, "answer_score": null, "sibling_qid": "KOL-2020-10-3985-Q005", "sibling_text": "seemp ieec validity of cert", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Where SEEMP fits in MARPOL Annex VI, and its certification", "cross_family": true }, { "answer_id": "SURV-ANNIV-002", "score": 0.586582601070404, "sibling_score": 0.586582601070404, "answer_score": null, "sibling_qid": "MUM-2026-06-3625-Q007", "sibling_text": "seq certificate annual intermediate survey and renewal certificate when survey carried out", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "How are the annual, intermediate and renewal survey dates and windows worked out from the anniversary date?", "cross_family": false } ] }, { "qid": "MUM-2026-06-3624-Q002", "text": "last requirement comes under which element?", "family": "MARPOL - Annex II (NLS)", "subtopic": "Chemical Cargo / P&A Manual", "tid": "MUM-2026-06-3624", "tray": "new", "candidates": [ { "answer_id": "ETA-567-001", "score": 0.563069760799408, "sibling_score": 0.563069760799408, "answer_score": null, "sibling_qid": "CHE-2021-06-0508-Q008", "sibling_text": "eta solas requirement", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Emergency towing arrangement — purpose, SOLAS requirement, standby and passing to the tug", "cross_family": true }, { "answer_id": "BCH-IBC-A-001", "score": 0.5075379610061646, "sibling_score": 0.5075379610061646, "answer_score": null, "sibling_qid": "MUM-2025-08-0412-Q003", "sibling_text": "st1 requirment", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Type 1, Type 2 and Type 3 chemical tankers — the ship-type classification", "cross_family": true }, { "answer_id": "LRHR-A-001", "score": 0.5020267963409424, "sibling_score": 0.5020267963409424, "answer_score": null, "sibling_qid": "MUM-2026-07-3688-Q005", "sibling_text": "lifer aft requirements", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "SOLAS requirement for liferafts on a cargo ship — number and total capacity", "cross_family": true } ] }, { "qid": "MUM-2026-06-3624-Q008", "text": "difference bet mlc & dmlc?", "family": "MLC", "subtopic": "MLC / DMLC / Work-Rest", "tid": "MUM-2026-06-3624", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.5560353994369507, "sibling_score": 0.5560353994369507, "answer_score": null, "sibling_qid": "MUM-2026-07-3684-Q001", "sibling_text": "dmlc1 and dmlc2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "CLC-CIV-B-003", "score": 0.5117342472076416, "sibling_score": 0.5117342472076416, "answer_score": null, "sibling_qid": "KOC-2025-03-0583-Q003", "sibling_text": "difference between clc and llmc", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "LLMC: purpose, scope and limitation of maritime claims", "cross_family": true }, { "answer_id": "MLC-WRH-B-007", "score": 0.5052863359451294, "sibling_score": 0.5052863359451294, "answer_score": null, "sibling_qid": "MUM-2026-01-0701-Q002", "sibling_text": "detainable deficiency of mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false } ] }, { "qid": "MUM-2026-06-3625-Q001", "text": "ism when come in force?", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "MUM-2026-06-3625", "tray": "new", "candidates": [ { "answer_id": "CII-P01-002", "score": 0.5803145170211792, "sibling_score": 0.5803145170211792, "answer_score": 0.3723297595977783, "sibling_qid": "CHE-2025-08-0018-Q005", "sibling_text": "cii when it came into force", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "When did CII enter into force, when are ratings issued, and the implementation timings", "cross_family": true }, { "answer_id": "BC-IMSBC-005", "score": 0.5065047740936279, "sibling_score": 0.5065047740936279, "answer_score": 0.3978881254792213, "sibling_qid": "MUM-2026-06-3603-Q001", "sibling_text": "latest amendments in ism and when", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "5. Latest IMSBC Code amendments", "cross_family": false }, { "answer_id": "AV6-P01-01", "score": 0.46385812759399414, "sibling_score": 0.46385812759399414, "answer_score": null, "sibling_qid": "KOC-2024-05-2047-Q006", "sibling_text": "new reg coming 01 05 2024", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Explain the latest Annex VI amendment or MEPC development, and state its date and status.", "cross_family": true } ] }, { "qid": "MUM-2026-06-3625-Q003", "text": "latest amendment in ism in 2010 which amendment come?", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "MUM-2026-06-3625", "tray": "new", "candidates": [ { "answer_id": "BC-IMSBC-005", "score": 0.6125082969665527, "sibling_score": 0.6125082969665527, "answer_score": 0.3377794802188873, "sibling_qid": "MUM-2026-06-3603-Q001", "sibling_text": "latest amendments in ism and when", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "5. Latest IMSBC Code amendments", "cross_family": false }, { "answer_id": "ISM-ELEM-003", "score": 0.513407826423645, "sibling_score": 0.513407826423645, "answer_score": null, "sibling_qid": "MUM-2020-09-0004-Q002", "sibling_text": "ism code element 10", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": false }, { "answer_id": "STP-SEW-001", "score": 0.5042186379432678, "sibling_score": 0.5042186379432678, "answer_score": null, "sibling_qid": "KOC-2025-10-0678-Q003", "sibling_text": "2010 amendment of stp", "sibling_family": "MARPOL - Annex IV (Sewage)", "via": "sibling", "answer_title": "MARPOL Annex IV — scope, applicability and certification", "cross_family": true } ] }, { "qid": "MUM-2026-06-3625-Q011", "text": "Bulbous bow shape of it in your ship?", "family": "Ship Construction & Stability", "subtopic": "DEFINITION", "tid": "MUM-2026-06-3625", "tray": "review", "candidates": [ { "answer_id": "PPS-230-006", "score": 0.6733080148696899, "sibling_score": 0.6733080148696899, "answer_score": null, "sibling_qid": "MUM-2026-02-0782-Q011", "sibling_text": "bulbous bow how it is connected to ship shape of bow", "sibling_family": "", "via": "sibling", "answer_title": "Fore-end / fore-peak structure: draw and describe", "cross_family": false }, { "answer_id": "BC-IMSBC-002", "score": 0.5372702479362488, "sibling_score": 0.5372702479362488, "answer_score": null, "sibling_qid": "MUM-2022-08-0040-Q002", "sibling_text": "since i sailed on container and bulk carrier he started with what s the design difference the bulbous bow of container and bulk carrier and why it is so", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "2. Bulk carrier construction and structural design", "cross_family": true }, { "answer_id": "DUS-P5-03", "score": 0.5108532905578613, "sibling_score": 0.5108532905578613, "answer_score": null, "sibling_qid": "MUM-2026-09-3879-Q003", "sibling_text": "different parts of ship keel stern bow explain", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Stern frame construction, cross-section and rudder-axis sketch", "cross_family": false } ] }, { "qid": "MUM-2026-06-3626-Q001", "text": "What types of ships sailed on?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-06-3626", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.7556101679801941, "sibling_score": 0.7556101679801941, "answer_score": null, "sibling_qid": "MUM-2026-02-0769-Q001", "sibling_text": "what types of ships sailed on", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7201836705207825, "sibling_score": 0.7201836705207825, "answer_score": 0.4422913521528244, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LL-CONV-P06-001", "score": 0.41760478615760804, "sibling_score": null, "answer_score": 0.41760478615760804, "sibling_qid": "", "sibling_text": "llc p06 01 ship categories and freeboard differences type a type b and practical ship cases", "sibling_family": "", "via": "answer_title", "answer_title": "LLC-P06-01 - Ship categories and freeboard differences: Type A, Type B and practical ship cases", "cross_family": false } ] }, { "qid": "MUM-2026-06-3626-Q006", "text": "Bulkhead in your ship between cargo hold. Types of corrugated bulkhead. How it is connected to ship side?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-06-3626", "tray": "review", "candidates": [ { "answer_id": "BHD-TYP-C-001", "score": 0.8094127774238586, "sibling_score": 0.8094127774238586, "answer_score": 0.5805911123752594, "sibling_qid": "MUM-2026-02-0769-Q004", "sibling_text": "bulkhead in your ship between cargo hold types of corrugated bulkhead how it is connected to ship side", "sibling_family": "", "via": "sibling", "answer_title": "Corrugated bulkhead — what it is, where used, why stronger than plain", "cross_family": false }, { "answer_id": "BHD-TYP-C-003", "score": 0.5616677224636077, "sibling_score": null, "answer_score": 0.5616677224636077, "sibling_qid": "", "sibling_text": "bulkhead construction and strengthening bulkhead stiffened vertical plating resisting cargo liquid flooding loads plain bulkhead plate vertical stiffeners horizontal stringers on long spans", "sibling_family": "", "via": "answer_title", "answer_title": "Bulkhead construction and strengthening", "cross_family": false }, { "answer_id": "SOLAS12-BC-F-001", "score": 0.5319624364376068, "sibling_score": null, "answer_score": 0.5319624364376068, "sibling_qid": "", "sibling_text": "barriers foremost bulkheads hatchways double side skin primary secondary barrier is strictly gas carrier igc language primary the cargo tank secondary the leak containing outer element 15 day standard for a bulk carrier talkstructural defences not barriers layered defence the post casualty logic weathertight closure hatch covers forecastle air pipes vents watertight subdivision transverse bulkhead", "sibling_family": "", "via": "answer_title", "answer_title": "Barriers, foremost bulkheads, hatchways & double-side skin", "cross_family": false } ] }, { "qid": "MUM-2026-06-3627-Q005", "text": "HOW & WHY breached rudder. HOW TO repair AND test ?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "MUM-2026-06-3627", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.7073433995246887, "sibling_score": 0.7073433995246887, "answer_score": null, "sibling_qid": "MUM-2026-05-3161-Q003", "sibling_text": "how to repair breached rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "RUD-DROP-003", "score": 0.5921012759208679, "sibling_score": 0.5921012759208679, "answer_score": 0.39411378800868985, "sibling_qid": "KOL-2024-03-3677-Q002", "sibling_text": "how to check rudder drop where to fit trammel gauge rudder drop has reached its max limit and bearing white metal has gone how u ll proceed with its repair and what you ll do to bearing", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Rudder drop at the limit: the decision", "cross_family": false }, { "answer_id": "DUS-P5-05", "score": 0.45253899693489075, "sibling_score": null, "answer_score": 0.45253899693489075, "sibling_qid": "", "sibling_text": "rudder checks and rudder blade tightness leak test in drydock visual checks coating condition cavitation erosion on the blade leading edge propeller side face sacrificial anodes against the approved cathodic protection plan grounding continuity against the approved acceptance criterion plate and weld cracks pintle clearance measured with feeler the numerical acceptance limit is class specific and ", "sibling_family": "", "via": "answer_title", "answer_title": "Rudder checks and rudder-blade tightness/leak test in drydock", "cross_family": false } ] }, { "qid": "MUM-2026-06-3627-Q008", "text": "Turbocharger bearing and cross questions and its lubrication in detail Priming arrangement emergency Fire pp, Bilge system why positive displacement pump?", "family": "Pumps - Centrifugal & PD", "subtopic": "Positive Displacement Pump", "tid": "MUM-2026-06-3627", "tray": "review", "candidates": [ { "answer_id": "PCD-P04-01", "score": 0.8024099469184875, "sibling_score": 0.8024099469184875, "answer_score": null, "sibling_qid": "MUM-2025-08-0367-Q014", "sibling_text": "and its lubrication in detail priming arrangement emg fire pp bilge system why positive displacement pump", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "01. Bilge pump — type, why not centrifugal, and the suction valve chest", "cross_family": false }, { "answer_id": "TURBO-CS-P03-009", "score": 0.6850152015686035, "sibling_score": 0.6850152015686035, "answer_score": null, "sibling_qid": "MUM-2026-03-1305-Q002", "sibling_text": "what type of lubrication in your ship turbocharger and why attached pump give what if pump fails how the lubrication will be done or any other means", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Lubrication arrangement: integral vs external, sealing air", "cross_family": true }, { "answer_id": "HYDRO-LUB-001", "score": 0.6401207447052002, "sibling_score": 0.6401207447052002, "answer_score": null, "sibling_qid": "KOL-2017-01-1262-Q002", "sibling_text": "details about different types of lubrication 5 advancements in bearing designs 6 fo service tank drain valve clogged actions m e running full load cannot stop m e 7 t c sleeve type brgs how axial thrust is taken by the bearings why overflow tank for lubrication reqd 8 lo cooler for m e shell tube type only one on board pin hole in water side end cover actions cannot stop m e and only one cooler on board 9 water mist catcher details where does drained water go where do you discharge which type of pump 10 ship transiting in calm m e thrust bearing temp high lubrication and clearance of thrust pad is ok reason", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "1. Lubrication, tribology & the types of lubrication", "cross_family": true } ] }, { "qid": "MUM-2026-06-3628-Q002", "text": "Difference between flame screen and flame arresters ?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankcase Relief Door", "tid": "MUM-2026-06-3628", "tray": "new", "candidates": [ { "answer_id": "WELD-A-001", "score": 0.5622223615646362, "sibling_score": 0.5622223615646362, "answer_score": null, "sibling_qid": "MUM-2023-09-2743-Q006", "sibling_text": "flashback arrestor flame arrestor", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Flashback arrestor — location, purpose, working and maintenance", "cross_family": true }, { "answer_id": "CRD-001", "score": 0.5457899570465088, "sibling_score": 0.5457899570465088, "answer_score": null, "sibling_qid": "CHE-2026-04-0257-Q007", "sibling_text": "flame trap", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Construction, working & flame arrester of crankcase relief door", "cross_family": false }, { "answer_id": "MR-DS-PV-B-005", "score": 0.5142533779144287, "sibling_score": 0.5142533779144287, "answer_score": 0.4821615993976593, "sibling_qid": "KOL-2025-03-3748-Q004", "sibling_text": "flash back arrester and flame arrester", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "5. Flame arrester vs flashback arrester in tanker deck venting", "cross_family": true } ] }, { "qid": "MUM-2026-06-3628-Q007", "text": "Use of vacuum condenser in steam plant ?", "family": "Heat Exchangers & Coolers", "subtopic": "Condenser Type", "tid": "MUM-2026-06-3628", "tray": "new", "candidates": [ { "answer_id": "COPT-BF043-004", "score": 0.6366239786148071, "sibling_score": 0.6366239786148071, "answer_score": 0.5836707711219787, "sibling_qid": "KOC-2021-08-2024-Q009", "sibling_text": "y vaccum is necessary in copt plant extract more work by reducing the condensing temperature he want to here it will increase the temperature diff by keeping vacuum", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "4. Why vacuum is necessary, and signs of falling vacuum", "cross_family": true }, { "answer_id": "VAC-COND-001", "score": 0.6175802946090698, "sibling_score": 0.6175802946090698, "answer_score": 0.5745400130748749, "sibling_qid": "KOL-2020-01-0379-Q003", "sibling_text": "vacuum condenser full details", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Purpose, working and thermodynamic principle of the vacuum condenser", "cross_family": true }, { "answer_id": "VAC-COND-002", "score": 0.6089479923248291, "sibling_score": 0.6089479923248291, "answer_score": null, "sibling_qid": "CHE-2026-08-3876-Q004", "sibling_text": "vacuum condenser in copt plant vacuum is dropping reasons", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Low vacuum, suction loss and failure to build vacuum — the reasons", "cross_family": true } ] }, { "qid": "MUM-2026-06-3629-Q008", "text": "ICCP ,location of anodes ?", "family": "Electrical - ICCP & Cathodic Protection", "subtopic": "ICCP", "tid": "MUM-2026-06-3629", "tray": "new", "candidates": [ { "answer_id": "ICCP-P02-002", "score": 0.6432648301124573, "sibling_score": 0.6432648301124573, "answer_score": 0.3388362035155296, "sibling_qid": "MUM-2026-06-3355-Q016", "sibling_text": "where exactly is iccp anodes fitted", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP drydock checks — anodes, shields, reference cells, bonding, hull", "cross_family": false }, { "answer_id": "ICCP-119-P01-003", "score": 0.6168082356452942, "sibling_score": 0.6168082356452942, "answer_score": 0.39072279930114745, "sibling_qid": "MUM-2026-04-2108-Q003", "sibling_text": "how anodes is connected in iccp", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP values, impressed-current meaning, anode/cathode roles and materials", "cross_family": false }, { "answer_id": "SCR-306-A-001", "score": 0.58101487159729, "sibling_score": 0.58101487159729, "answer_score": null, "sibling_qid": "MUM-2025-08-1577-Q003", "sibling_text": "refrence anode position", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "What an SCR is and how it works", "cross_family": false } ] }, { "qid": "MUM-2026-06-3630-Q001", "text": "Type of Ship sailed ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-06-3630", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8460181951522827, "sibling_score": 0.8460181951522827, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8450309634208679, "sibling_score": 0.8450309634208679, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7928885817527771, "sibling_score": 0.7928885817527771, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "MUM-2026-06-3630-Q005", "text": "FIVA & ELFI difference ?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "MC-C vs MEB Engine", "tid": "MUM-2026-06-3630", "tray": "new", "candidates": [ { "answer_id": "FIVA-220-002", "score": 0.5788978934288025, "sibling_score": 0.5788978934288025, "answer_score": null, "sibling_qid": "MUM-2026-06-3514-Q005", "sibling_text": "fiva and elfi", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "FIVA control of fuel injection — timing, quantity and actuation", "cross_family": false }, { "answer_id": "MEB-MEC-P03-001", "score": 0.44167906045913696, "sibling_score": 0.44167906045913696, "answer_score": null, "sibling_qid": "KOL-2023-02-4019-Q009", "sibling_text": "fiva elfi valve does me b has ccu", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "ME-B vs ME-C — the core difference", "cross_family": false }, { "answer_id": "EECS-001", "score": 0.4112091660499573, "sibling_score": 0.4112091660499573, "answer_score": null, "sibling_qid": "MUM-2024-09-0203-Q002", "sibling_text": "eexi eedi differences", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "01. Differentiate EEDI and EEXI — formula and units of each", "cross_family": true } ] }, { "qid": "MUM-2026-06-3630-Q007", "text": "What do you understand by these balancing. Elaborate ?", "family": "Turbocharger", "subtopic": "Balancing / Vibration", "tid": "MUM-2026-06-3630", "tray": "new", "candidates": [ { "answer_id": "TCS-059-P04-013", "score": 0.5519627928733826, "sibling_score": 0.5519627928733826, "answer_score": null, "sibling_qid": "KOL-2025-07-1812-Q002", "sibling_text": "t c matching and balancing in details", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharger matching and balancing", "cross_family": false }, { "answer_id": "TC-CS-P01-008", "score": 0.5217852592468262, "sibling_score": 0.5217852592468262, "answer_score": null, "sibling_qid": "KOC-2026-09-2182-Q005", "sibling_text": "static and dynamic balancing of t c", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "H·Static and dynamic balancing of the turbocharger rotor", "cross_family": false }, { "answer_id": "VIB-BAL-C-FINAL-1-003", "score": 0.5019107460975647, "sibling_score": 0.5019107460975647, "answer_score": 0.3170556455850601, "sibling_qid": "KOC-2026-08-2111-Q008", "sibling_text": "static and dynamic balancing", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Static and Dynamic Balancing of the Crankshaft / Shaft", "cross_family": false } ] }, { "qid": "MUM-2026-06-3631-Q001", "text": "Efficiency OF ME Cross questions ?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Engine Theory / Performance", "tid": "MUM-2026-06-3631", "tray": "new", "candidates": [ { "answer_id": "MCC-MEB-P02-004", "score": 0.5696918964385986, "sibling_score": 0.5696918964385986, "answer_score": null, "sibling_qid": "CHE-2025-08-0175-Q001", "sibling_text": "advantages of me engines and cross questions", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What an intelligent (smart) ME engine is, and why owners prefer it", "cross_family": false }, { "answer_id": "CPP-ATC-01", "score": 0.5407118797302246, "sibling_score": 0.5407118797302246, "answer_score": null, "sibling_qid": "KOL-2022-03-1668-Q005", "sibling_text": "efficient asking about some efficiency graph scavenge and", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "2-stroke versus 4-stroke air-side comparison — equal-power reading", "cross_family": false }, { "answer_id": "MCC-MEB-P02-002", "score": 0.53936368227005, "sibling_score": 0.53936368227005, "answer_score": null, "sibling_qid": "KOL-2020-10-1551-Q008", "sibling_text": "pump t c lots of cross qes", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "MAN B&W nomenclature — and what MC, MC-C, ME-B, ME-C actually mean", "cross_family": false } ] }, { "qid": "MUM-2026-06-3631-Q003", "text": "OWS AND Purifier difference ?", "family": "MARPOL - Annex I (Oil)", "subtopic": "Oil Discharge Criteria", "tid": "MUM-2026-06-3631", "tray": "new", "candidates": [ { "answer_id": "OWS-15PPM-006", "score": 0.5021782517433167, "sibling_score": 0.5021782517433167, "answer_score": null, "sibling_qid": "KOC-2025-07-0624-Q001", "sibling_text": "difference between ows and odme", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "PUR-BOWL-P03-FINAL-1-004", "score": 0.46189093589782715, "sibling_score": 0.46189093589782715, "answer_score": 0.35368066430091855, "sibling_qid": "MUM-2026-09-3969-Q003", "sibling_text": "purifier and clarifier difference", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "4. Purifier versus Clarifier — Differences, Conversion and Batch Purification", "cross_family": true }, { "answer_id": "OWS-15PPM-007", "score": 0.43522942066192627, "sibling_score": 0.43522942066192627, "answer_score": null, "sibling_qid": "MUM-2022-08-0034-Q004", "sibling_text": "certificates for ows", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "MUM-2026-06-3632-Q001", "text": "Which function status of other functions? ", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-06-3632", "tray": "new", "candidates": [ { "answer_id": "IMO-CODES-P03-002", "score": 0.602020263671875, "sibling_score": 0.602020263671875, "answer_score": null, "sibling_qid": "MUM-2026-03-0815-Q003", "sibling_text": "which function", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": true }, { "answer_id": "ANCH-C-006", "score": 0.5236585736274719, "sibling_score": 0.5236585736274719, "answer_score": null, "sibling_qid": "MUM-2026-06-3459-Q001", "sibling_text": "type of ship sail and status of other function", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "CHAIN-TENS-C-001", "score": 0.500377893447876, "sibling_score": 0.500377893447876, "answer_score": null, "sibling_qid": "KOL-2021-10-1636-Q005", "sibling_text": "chain slackness check few question forget got function 4", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main-engine chain drive — how you know it is slack, and how you check and tighten it", "cross_family": true } ] }, { "qid": "MUM-2026-06-3632-Q002", "text": "Type of ship LPG tankers ? ", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-06-3632", "tray": "review", "candidates": [ { "answer_id": "LPG-LNG-009", "score": 0.8318914771080017, "sibling_score": 0.8318914771080017, "answer_score": 0.5544515043497086, "sibling_qid": "CHE-2026-04-0164-Q001", "sibling_text": "type of ship sailed lpg carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Gas-carrier fundamentals and ship-specific traps", "cross_family": false }, { "answer_id": "IGC-GAS-004", "score": 0.7503918409347534, "sibling_score": 0.7503918409347534, "answer_score": null, "sibling_qid": "KOL-2025-08-1014-Q002", "sibling_text": "type of ship sailed lpg classification of gas carriers of as per igc code", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Ship-type classification under the IGC Code — 1G / 2G / 2PG / 3G", "cross_family": true }, { "answer_id": "COT-01", "score": 0.7293486595153809, "sibling_score": 0.7293486595153809, "answer_score": null, "sibling_qid": "KOC-2026-04-0892-Q003", "sibling_text": "type of ship sailed tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Oil-tanker types, definitions and cargo capability", "cross_family": false } ] }, { "qid": "MUM-2026-06-3632-Q003", "text": "Have u sailed on HV system ship ? ", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-06-3632", "tray": "new", "candidates": [ { "answer_id": "T038-P01-003", "score": 0.5835610032081604, "sibling_score": 0.5835610032081604, "answer_score": null, "sibling_qid": "MUM-2026-05-3189-Q001", "sibling_text": "which ships hv or lv", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "HV vs LV onboard — systems, equipment and motor terminal boxes", "cross_family": true }, { "answer_id": "HV-SYS-P02-001", "score": 0.5748592615127563, "sibling_score": 0.5748592615127563, "answer_score": 0.3646162748336792, "sibling_qid": "KOC-2025-04-1525-Q003", "sibling_text": "why hv on used on ships", "sibling_family": "", "via": "sibling", "answer_title": "Why high voltage is used onboard ships", "cross_family": false }, { "answer_id": "T038-P01-002", "score": 0.5724936127662659, "sibling_score": 0.5724936127662659, "answer_score": 0.3765250891447067, "sibling_qid": "CHE-2026-04-0374-Q001", "sibling_text": "type of ship sailed high or low voltage lv ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "HV system onboard — layout, components, applications, earthing & protection", "cross_family": false } ] }, { "qid": "MUM-2026-06-3632-Q009", "text": "What is droop ? ", "family": "Automation & Controls", "subtopic": "Droop", "tid": "MUM-2026-06-3632", "tray": "new", "candidates": [ { "answer_id": "DROOP-001", "score": 0.5593156218528748, "sibling_score": 0.5593156218528748, "answer_score": 0.301309797167778, "sibling_qid": "MUM-2026-07-3817-Q011", "sibling_text": "gov droop", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Governor / speed droop — what, why, setting and formula", "cross_family": false }, { "answer_id": "DROOP-002", "score": 0.5136401653289795, "sibling_score": 0.5136401653289795, "answer_score": null, "sibling_qid": "KOL-2022-10-1925-Q003", "sibling_text": "droop characteristics", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Speed-droop characteristic — the curve and what it shows", "cross_family": false }, { "answer_id": "AVRD-618-001", "score": 0.5043386220932007, "sibling_score": 0.5043386220932007, "answer_score": null, "sibling_qid": "KOC-2022-12-1214-Q001", "sibling_text": "avr droop", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "What is AVR droop, and why is it required?", "cross_family": true } ] }, { "qid": "MUM-2026-06-3634-Q001", "text": "How to check insulation of a sea water motor And it's value?", "family": "Electrical - Motors & Starters", "subtopic": "IR Test / Insulation Resistance", "tid": "MUM-2026-06-3634", "tray": "review", "candidates": [ { "answer_id": "IR-TEST-B-003", "score": 0.8381385803222656, "sibling_score": 0.8381385803222656, "answer_score": null, "sibling_qid": "MUM-2026-02-1951-Q001", "sibling_text": "how to check insulation of a sea water motor and it s value", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "IR values, number of readings, and the test voltage to apply", "cross_family": false }, { "answer_id": "IR-TEST-B-002", "score": 0.7017862796783447, "sibling_score": 0.7017862796783447, "answer_score": null, "sibling_qid": "KOC-2024-10-1422-Q009", "sibling_text": "how to check motor insulation", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "IR test of a low-voltage motor — the standard megger procedure", "cross_family": false }, { "answer_id": "IRT-A-002", "score": 0.695426344871521, "sibling_score": 0.695426344871521, "answer_score": null, "sibling_qid": "MUM-2026-07-3687-Q008", "sibling_text": "how to take the insulation resistance of the motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Taking an IR test on a motor - isolation and procedure", "cross_family": false } ] }, { "qid": "MUM-2026-06-3637-Q008", "text": "rudder painting ?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Painting", "tid": "MUM-2026-06-3637", "tray": "review", "candidates": [ { "answer_id": "HULL-PAINT-002", "score": 0.7924852967262268, "sibling_score": 0.7924852967262268, "answer_score": null, "sibling_qid": "CHE-2026-02-0110-Q012", "sibling_text": "rudder internal painting", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Types of hull coating, the paint scheme by section, and why each is used", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.7924852967262268, "sibling_score": 0.7924852967262268, "answer_score": null, "sibling_qid": "MUM-2026-05-3150-Q003", "sibling_text": "rudder internal painting", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "TRS-002", "score": 0.6007364392280579, "sibling_score": 0.6007364392280579, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false } ] }, { "qid": "MUM-2026-06-3637-Q010", "text": "rudder breached HOW TO repair?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "MUM-2026-06-3637", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.7537813782691956, "sibling_score": 0.7537813782691956, "answer_score": null, "sibling_qid": "MUM-2026-05-3161-Q003", "sibling_text": "how to repair breached rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "PRE-TEN-001", "score": 0.5850148797035217, "sibling_score": 0.5850148797035217, "answer_score": null, "sibling_qid": "MUM-2026-09-3907-Q001", "sibling_text": "rudder carrier bearing replacement in port", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Pre-stressing and pre-tensioning in main-engine bolting", "cross_family": false }, { "answer_id": "WBS-C-006", "score": 0.5027419030666351, "sibling_score": null, "answer_score": 0.5027419030666351, "sibling_qid": "", "sibling_text": "propeller and rudder repair grading the damage and the class approved route grade the damage first minor nicks erosion bent tip vs crack major minor grind and blend out the notch restore a fair section keep balance small cold repair epoxy fillers for minor surface defects only", "sibling_family": "", "via": "answer_title", "answer_title": "Propeller and rudder repair — grading the damage and the Class-approved route", "cross_family": false } ] }, { "qid": "MUM-2026-06-3638-Q001", "text": "Type of engine sailed ?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-06-3638", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8485499024391174, "sibling_score": 0.8485499024391174, "answer_score": null, "sibling_qid": "MUM-2026-04-1007-Q002", "sibling_text": "type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.767379105091095, "sibling_score": 0.767379105091095, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q001", "sibling_text": "type of ship sailed and engines details", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7356159090995789, "sibling_score": 0.7356159090995789, "answer_score": null, "sibling_qid": "KOL-2025-12-2031-Q002", "sibling_text": "type of ship and engine sailed engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "MUM-2026-06-3639-Q001", "text": "Type of Engine & Type of Ship?", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "MUM-2026-06-3639", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8296602368354797, "sibling_score": 0.8296602368354797, "answer_score": null, "sibling_qid": "MUM-2025-08-2357-Q001", "sibling_text": "type of ship type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.8062595129013062, "sibling_score": 0.8062595129013062, "answer_score": null, "sibling_qid": "MUM-2026-07-3668-Q004", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "AC-VE-001", "score": 0.7698836326599121, "sibling_score": 0.7698836326599121, "answer_score": null, "sibling_qid": "MUM-2026-01-2904-Q001", "sibling_text": "what type of ship engine power and nomenclature", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Volumetric efficiency: define it, and if it drops how do you improve it (with bumping clearance)?", "cross_family": false } ] }, { "qid": "MUM-2026-06-3640-Q003", "text": "How to remove air from hydraulic line ?", "family": "2-Stroke - Operations & Casualty", "subtopic": "Hydraulic Jack", "tid": "MUM-2026-06-3640", "tray": "review", "candidates": [ { "answer_id": "HYD-JACK-005", "score": 0.788848340511322, "sibling_score": 0.788848340511322, "answer_score": 0.6108984380960464, "sibling_qid": "CHE-2025-09-0443-Q007", "sibling_text": "how to purge air in hydraulic line", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Purging air from a hydraulic jack or tool line before use", "cross_family": false }, { "answer_id": "SAE-388-003", "score": 0.6722926497459412, "sibling_score": 0.6722926497459412, "answer_score": null, "sibling_qid": "MUM-2025-11-2876-Q002", "sibling_text": "st air line getting hot your first action as 2e he wanted close valve me air valve and drain line thats it", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "The starting air line is getting hot, or a starting valve is leaking — your action as 2nd Engineer?", "cross_family": false }, { "answer_id": "CPFE-583-007", "score": 0.6598931550979614, "sibling_score": 0.6598931550979614, "answer_score": null, "sibling_qid": "MUM-2026-05-3082-Q007", "sibling_text": "how to purge hydraulic system", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Pressure not building — and purging the hydraulic system", "cross_family": true } ] }, { "qid": "MUM-2026-06-3641-Q003", "text": "how to paint rudder inside ?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Painting", "tid": "MUM-2026-06-3641", "tray": "review", "candidates": [ { "answer_id": "HULL-PAINT-002", "score": 0.7521746754646301, "sibling_score": 0.7521746754646301, "answer_score": null, "sibling_qid": "CHE-2026-02-0110-Q012", "sibling_text": "rudder internal painting", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Types of hull coating, the paint scheme by section, and why each is used", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.7521746754646301, "sibling_score": 0.7521746754646301, "answer_score": null, "sibling_qid": "MUM-2026-05-3150-Q003", "sibling_text": "rudder internal painting", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "TRS-002", "score": 0.5205664038658142, "sibling_score": 0.5205664038658142, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false } ] }, { "qid": "MUM-2026-06-3642-Q001", "text": "Ism and TMQ code similarity ?", "family": "ISM Code", "subtopic": "TQM / Quality Management", "tid": "MUM-2026-06-3642", "tray": "new", "candidates": [ { "answer_id": "PMS-392-002", "score": 0.5270944237709045, "sibling_score": 0.5270944237709045, "answer_score": null, "sibling_qid": "KOL-2021-04-1584-Q007", "sibling_text": "similarity between ism and pms few cross", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "How is PMS linked with the ISM Code and SOLAS maintenance requirements?", "cross_family": true }, { "answer_id": "ISM-ELEM-002", "score": 0.5246469974517822, "sibling_score": 0.5246469974517822, "answer_score": 0.2651663899421692, "sibling_qid": "MUM-2026-05-3337-Q011", "sibling_text": "ism code", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the ISM Code?", "cross_family": false }, { "answer_id": "ISM-ELEM-003", "score": 0.30240335315465927, "sibling_score": null, "answer_score": 0.30240335315465927, "sibling_qid": "", "sibling_text": "elements chapters structure of the ism code part a implementation the 12 elements 1 general 1 1 definitions 1 2 objectives 1 3 application 1 4 functional requirements for an sms", "sibling_family": "", "via": "answer_title", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": false } ] }, { "qid": "MUM-2026-06-3644-Q009", "text": "Substandard ship definition?", "family": "Ship Construction & Stability", "subtopic": "DEFINITION", "tid": "MUM-2026-06-3644", "tray": "new", "candidates": [ { "answer_id": "DS-P04-002", "score": 0.5732201933860779, "sibling_score": 0.5732201933860779, "answer_score": null, "sibling_qid": "CHE-2026-05-0540-Q004", "sibling_text": "sub division of passenger ship", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Flooding, subdivision, margin line, downflooding and survivability", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.5542175769805908, "sibling_score": 0.5542175769805908, "answer_score": null, "sibling_qid": "KOL-2016-12-0035-Q003", "sibling_text": "type a type b ship define", "sibling_family": "", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "DAM-STAB-P03-002", "score": 0.5504276156425476, "sibling_score": 0.5504276156425476, "answer_score": null, "sibling_qid": "KOL-2026-07-4264-Q005", "sibling_text": "damage stability criteria for your ship", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "General cargo-ship damage stability criteria and requirements", "cross_family": false } ] }, { "qid": "MUM-2026-06-3645-Q005", "text": "Tests on foam ?", "family": "SOLAS - Fire Safety", "subtopic": "Foam System / Monitor", "tid": "MUM-2026-06-3645", "tray": "review", "candidates": [ { "answer_id": "FOAM-SYS-P06-001", "score": 0.6781314015388489, "sibling_score": 0.6781314015388489, "answer_score": null, "sibling_qid": "MUM-2026-02-0778-Q009", "sibling_text": "foam testing routine", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "1. Foam sample testing & analysis — frequency and certificate", "cross_family": false }, { "answer_id": "FOAM-032-P03-002", "score": 0.6264323592185974, "sibling_score": 0.6264323592185974, "answer_score": null, "sibling_qid": "KOL-2025-12-1141-Q004", "sibling_text": "high expansion foam how to check the condition of foam how to test foam solution onboard or shore procedure", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "High-expansion foam generator / nozzle arrangement — draw and explain", "cross_family": false }, { "answer_id": "FOAM-P01-005", "score": 0.6178467869758606, "sibling_score": 0.6178467869758606, "answer_score": null, "sibling_qid": "MUM-2026-09-3875-Q004", "sibling_text": "foam calculation", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Calculating foam quantity/capacity for a fixed deck foam system", "cross_family": false } ] }, { "qid": "MUM-2026-06-3646-Q001", "text": "Latest *major* amendment in ISM code ?", "family": "SOLAS - Fire Safety", "subtopic": "FSS Code", "tid": "MUM-2026-06-3646", "tray": "new", "candidates": [ { "answer_id": "BC-IMSBC-005", "score": 0.647071123123169, "sibling_score": 0.647071123123169, "answer_score": 0.4560507178306579, "sibling_qid": "MUM-2026-09-3961-Q013", "sibling_text": "latest ism amendment", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "5. Latest IMSBC Code amendments", "cross_family": true }, { "answer_id": "IGC-IGF-004", "score": 0.5913417339324951, "sibling_score": 0.5913417339324951, "answer_score": null, "sibling_qid": "MUM-2025-12-0649-Q015", "sibling_text": "latest amendment in igc code", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Latest amendments / new regulations — IGC and gas tankers", "cross_family": true }, { "answer_id": "COT-P02-10", "score": 0.5793899297714233, "sibling_score": 0.5793899297714233, "answer_score": null, "sibling_qid": "KOC-2025-05-2066-Q005", "sibling_text": "latest amendment in ig", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "State and explain the latest statutory amendments affecting tanker inert-gas systems, including applicability and practical changes on board.", "cross_family": true } ] }, { "qid": "MUM-2026-06-3646-Q002", "text": "Is there any code for safe operation of ship as 'COTES' ?", "family": "SOLAS - General", "subtopic": "", "tid": "MUM-2026-06-3646", "tray": "new", "candidates": [ { "answer_id": "MR-DS-PV-B-003", "score": 0.50299072265625, "sibling_score": 0.50299072265625, "answer_score": null, "sibling_qid": "KOC-2024-02-0298-Q002", "sibling_text": "which type of ship explain ig safeties on deck", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "3. Alarms, trips, valves, and abnormal conditions of the deck seal", "cross_family": true }, { "answer_id": "SHORE-CONN-P03-002", "score": 0.4966453015804291, "sibling_score": 0.4966453015804291, "answer_score": null, "sibling_qid": "KOL-2024-08-2727-Q002", "sibling_text": "safeties while taking shore supply", "sibling_family": "", "via": "sibling", "answer_title": "Precautions, safeties and earthing before connecting shore supply", "cross_family": false }, { "answer_id": "INCL-EXP-D-001", "score": 0.4949110746383667, "sibling_score": 0.4949110746383667, "answer_score": null, "sibling_qid": "KOC-2023-12-0263-Q003", "sibling_text": "inclination experiment preparation procedure equation how to find center of gravity from this 3 ship security plan contents 4 duties of cso", "sibling_family": "", "via": "sibling", "answer_title": "Finding GM — then KG and the centre of gravity", "cross_family": false } ] }, { "qid": "MUM-2026-06-3646-Q007", "text": "What is used to ionize in ionization type of sensor?", "family": "OTHER TOPICS", "subtopic": "", "tid": "MUM-2026-06-3646", "tray": "new", "candidates": [ { "answer_id": "FSH-DET-002", "score": 0.632583737373352, "sibling_score": 0.632583737373352, "answer_score": 0.43812865018844604, "sibling_qid": "KOL-2017-07-1852-Q015", "sibling_text": "ionization detector circuit detector", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Working of smoke detectors — ionization type and cargo-hold smoke detection", "cross_family": true }, { "answer_id": "FSH-DET-001", "score": 0.5286430716514587, "sibling_score": 0.5286430716514587, "answer_score": 0.38027280271053315, "sibling_qid": "MUM-2026-05-3284-Q007", "sibling_text": "working of ionization type smoke detector", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Types of fire, smoke, heat and flame detectors used onboard", "cross_family": true }, { "answer_id": "FSH-DET-004", "score": 0.5274817943572998, "sibling_score": 0.5274817943572998, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q011", "sibling_text": "what element is there in heat detector inonization type", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Heat detector locations onboard, and why heat detectors in ECR, workshop and machinery spaces", "cross_family": true } ] }, { "qid": "MUM-2026-06-3647-Q001", "text": "Type of ship sailed?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-06-3647", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8460181951522827, "sibling_score": 0.8460181951522827, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8450309634208679, "sibling_score": 0.8450309634208679, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7928885817527771, "sibling_score": 0.7928885817527771, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "MUM-2026-06-3647-Q003", "text": "2s and 4s camshaft and camshaft same or not ?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "MC-C vs MEB Engine", "tid": "MUM-2026-06-3647", "tray": "new", "candidates": [ { "answer_id": "MEB-MEC-P03-002", "score": 0.6214516162872314, "sibling_score": 0.6214516162872314, "answer_score": null, "sibling_qid": "MUM-2026-06-3621-Q005", "sibling_text": "diff b w camshaft", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "ME camless control architecture — ECS, CCU, EICU, MPC", "cross_family": false }, { "answer_id": "AE-CAMTIM-001", "score": 0.6092641949653625, "sibling_score": 0.6092641949653625, "answer_score": 0.4700298637151718, "sibling_qid": "MUM-2026-06-3663-Q004", "sibling_text": "rpm of crankshaft and cam shaft same 4 stroke cam shaft speed and also 2 stroke camshaft", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Crankshaft-to-camshaft speed and gear ratio (four-stroke AE, and versus the main engine)", "cross_family": true }, { "answer_id": "ILK-318-006", "score": 0.5715623497962952, "sibling_score": 0.5715623497962952, "answer_score": null, "sibling_qid": "KOC-2026-05-0031-Q002", "sibling_text": "camshaft functions interlocks in me engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "6. How camshaft functions relate to main-engine interlocks", "cross_family": false } ] }, { "qid": "MUM-2026-06-3647-Q006", "text": "Why in liner upper  portion wear rate more than bottom ?", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "MUM-2026-06-3647", "tray": "new", "candidates": [ { "answer_id": "CYL-LINER-P02-005", "score": 0.5712141394615173, "sibling_score": 0.5712141394615173, "answer_score": 0.37605178654193877, "sibling_qid": "MUM-2025-09-1197-Q002", "sibling_text": "where will liner wear the most and why", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L5 · T044-PART_02-G005High", "cross_family": false }, { "answer_id": "CYL-LINER-P03-002", "score": 0.5699850916862488, "sibling_score": 0.5699850916862488, "answer_score": null, "sibling_qid": "MUM-2026-06-3523-Q015", "sibling_text": "liner has worn edge at top how will u come to know without opening or inspection", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Detecting and confirming a cracked or leaking liner — and pinning the unit", "cross_family": false }, { "answer_id": "CYL-LINER-P01-003", "score": 0.5673665404319763, "sibling_score": 0.5673665404319763, "answer_score": null, "sibling_qid": "KOC-2024-08-1855-Q003", "sibling_text": "normal wear rate of liner", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "From the readings: wear, wear rate, units and renewal limits", "cross_family": false } ] }, { "qid": "MUM-2026-06-3647-Q007", "text": "How we overcome this wear rate in terms of design ?", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "MUM-2026-06-3647", "tray": "new", "candidates": [ { "answer_id": "CYL-LINER-P01-003", "score": 0.49567824602127075, "sibling_score": 0.49567824602127075, "answer_score": 0.339641734957695, "sibling_qid": "CHE-2025-05-0398-Q017", "sibling_text": "there is no value is given for wear limits then what will you do", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "From the readings: wear, wear rate, units and renewal limits", "cross_family": false }, { "answer_id": "PIST-CSI-C-001", "score": 0.4673912525177002, "sibling_score": 0.4673912525177002, "answer_score": null, "sibling_qid": "KOL-2025-07-1812-Q011", "sibling_text": "piston is wear down your plan to recondition it onboard as 2e", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston crown damage — pitting, burning, cracks and reconditioning", "cross_family": false }, { "answer_id": "CYL-LINER-P02-005", "score": 0.46542274951934814, "sibling_score": 0.46542274951934814, "answer_score": null, "sibling_qid": "KOL-2024-10-3719-Q001", "sibling_text": "liner wear increased on one unit all units reasons remedies", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L5 · T044-PART_02-G005High", "cross_family": false } ] }, { "qid": "MUM-2026-06-3647-Q008", "text": "Fatigue ?", "family": "NDT & Material Testing", "subtopic": "Creep / Fatigue Failure", "tid": "MUM-2026-06-3647", "tray": "review", "candidates": [ { "answer_id": "CFF-P02-001", "score": 0.7944570183753967, "sibling_score": 0.7944570183753967, "answer_score": 0.38847131878137586, "sibling_qid": "KOL-2020-12-3370-Q005", "sibling_text": "fatigue", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Fatigue failure — what it is and where it occurs", "cross_family": false }, { "answer_id": "CFF-P02-003", "score": 0.39352970868349074, "sibling_score": null, "answer_score": 0.39352970868349074, "sibling_qid": "", "sibling_text": "low cycle and high cycle fatigue high cycle fatigue hcf low stress elastic n large broadly 10 4 up to 10 6 10 8 stress controlled the s n endurance limit regime basquin low cycle fatigue lcf high stress into plastic strain each cycle n small broadly 10 4 strain controlled coffin manson no endurance limit benefit", "sibling_family": "", "via": "answer_title", "answer_title": "Low-cycle and high-cycle fatigue", "cross_family": false }, { "answer_id": "MNS-016", "score": 0.3791325598955154, "sibling_score": null, "answer_score": 0.3791325598955154, "sibling_qid": "", "sibling_text": "a motor shaft has broken why and how almost always fatigue say so first then explain what fatigue needs fatigue needs a cyclic stress plus a stress raiser plus time", "sibling_family": "", "via": "answer_title", "answer_title": "A motor shaft has broken — why, and how", "cross_family": false } ] }, { "qid": "MUM-2026-06-3648-Q001", "text": "Type of vessel?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-06-3648", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8512915968894958, "sibling_score": 0.8512915968894958, "answer_score": null, "sibling_qid": "MUM-2026-06-3384-Q001", "sibling_text": "type of vessel", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.7773916125297546, "sibling_score": 0.7773916125297546, "answer_score": null, "sibling_qid": "CHE-2026-02-0481-Q001", "sibling_text": "type of vessels sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7702273726463318, "sibling_score": 0.7702273726463318, "answer_score": 0.5231098234653473, "sibling_qid": "CHE-2026-02-0109-Q001", "sibling_text": "type of ship explain what type is your vessel explain their type and difference", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "MUM-2026-06-3649-Q011", "text": "Nut bolt loosening frequently, reasons. What to do to prevent?", "family": "Workshop & Welding", "subtopic": "Nut-Bolt Loosening / Locking Arrangements", "tid": "MUM-2026-06-3649", "tray": "review", "candidates": [ { "answer_id": "TBR-TT-P02-002", "score": 0.8029818534851074, "sibling_score": 0.8029818534851074, "answer_score": null, "sibling_qid": "MUM-2026-04-2670-Q003", "sibling_text": "nut bolt lossening frequently reasons what to do to prevent", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Checking tie rod tightness / slackness — stopped and running", "cross_family": false }, { "answer_id": "FB-COUP-001", "score": 0.6167248487472534, "sibling_score": 0.6167248487472534, "answer_score": null, "sibling_qid": "MUM-2026-09-3863-Q008", "sibling_text": "bolt getting loose how will you do and where else we use lock nut on ship", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What fitted bolts are, what they do, and where they sit onboard", "cross_family": true }, { "answer_id": "SPR-STERN-008", "score": 0.5873053669929504, "sibling_score": 0.5873053669929504, "answer_score": null, "sibling_qid": "MUM-2026-03-1306-Q014S6", "sibling_text": "fitted bolts why used", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Tail/intermediate shaft material, stresses, fitted bolts & arrangement", "cross_family": true } ] }, { "qid": "MUM-2026-06-3649-Q012", "text": "what if I don’t have lock washer?", "family": "Workshop & Welding", "subtopic": "Nut-Bolt Loosening / Locking Arrangements", "tid": "MUM-2026-06-3649", "tray": "new", "candidates": [ { "answer_id": "WTGS-325-008", "score": 0.5101102590560913, "sibling_score": 0.5101102590560913, "answer_score": 0.3178205445408821, "sibling_qid": "KOC-2025-03-2061-Q007", "sibling_text": "types of washers you have come across i had missed out spherical washer explained that spring washer normal washer self locking washer diff material washer copper ss", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Types of washers and their applications", "cross_family": false }, { "answer_id": "FB-COUP-001", "score": 0.46640899777412415, "sibling_score": 0.46640899777412415, "answer_score": null, "sibling_qid": "MUM-2026-09-3863-Q008", "sibling_text": "bolt getting loose how will you do and where else we use lock nut on ship", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What fitted bolts are, what they do, and where they sit onboard", "cross_family": true }, { "answer_id": "GKT-MAT-005", "score": 0.4532085955142975, "sibling_score": 0.4532085955142975, "answer_score": null, "sibling_qid": "KOL-2026-04-3944-Q001", "sibling_text": "copper washer reuse", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Reusing copper washers onboard", "cross_family": false } ] }, { "qid": "MUM-2026-06-3649-Q014", "text": "what parts get affected on ships?", "family": "Materials & Metallurgy", "subtopic": "Creep / Fatigue Failure", "tid": "MUM-2026-06-3649", "tray": "review", "candidates": [ { "answer_id": "CFF-P02-001", "score": 0.6723313927650452, "sibling_score": 0.6723313927650452, "answer_score": null, "sibling_qid": "MUM-2026-09-3877-Q010", "sibling_text": "parts subjected to fatigue on board ship", "sibling_family": "Materials & Metallurgy", "via": "sibling", "answer_title": "Fatigue failure — what it is and where it occurs", "cross_family": false }, { "answer_id": "RES-PROP-P01-002", "score": 0.5501641035079956, "sibling_score": 0.5501641035079956, "answer_score": null, "sibling_qid": "KOC-2025-12-0757-Q007", "sibling_text": "various resistance on ship", "sibling_family": "", "via": "sibling", "answer_title": "Resistance types and methods of reducing them", "cross_family": false }, { "answer_id": "ESP-A-002", "score": 0.5431947708129883, "sibling_score": 0.5431947708129883, "answer_score": null, "sibling_qid": "MUM-2026-01-0674-Q001", "sibling_text": "esp on which type of ships", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "On which ships is ESP applicable, under which statutory framework, and when is it carried out?", "cross_family": true } ] }, { "qid": "MUM-2026-06-3649-Q016", "text": "Red flags in Lube oil analysis?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "LO Test / Analysis", "tid": "MUM-2026-06-3649", "tray": "review", "candidates": [ { "answer_id": "LO-TEST-P01-003", "score": 0.7827093005180359, "sibling_score": 0.7827093005180359, "answer_score": 0.4910333126783371, "sibling_qid": "MUM-2026-04-2670-Q008", "sibling_text": "red flags in lube oil analysis", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Reading a shore analysis report: metals, FTIR and red flags", "cross_family": false }, { "answer_id": "MD-SUMP-002", "score": 0.6364981532096863, "sibling_score": 0.6364981532096863, "answer_score": null, "sibling_qid": "KOL-2026-03-3938-Q001", "sibling_text": "indications of microbial attack in lub oil pungent smell is last how you know when engine is running", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Identifying microbial attack with the engine running — the smell is the last sign", "cross_family": false }, { "answer_id": "LO-TEST-P02-003", "score": 0.6186681389808655, "sibling_score": 0.6186681389808655, "answer_score": 0.4812299907207489, "sibling_qid": "KOL-2021-10-1632-Q002", "sibling_text": "2 what r the lub oil contamination", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Abnormal LO condition: sump rise, colour, high temperature/pressure, lacquer, deterioration", "cross_family": false } ] }, { "qid": "MUM-2026-06-3650-Q002", "text": "oil recovery from ref system ,procedure n all ?", "family": "Refrigeration & AC", "subtopic": "Refrigeration Lubricating Oil / Flock Point / Oil Charging", "tid": "MUM-2026-06-3650", "tray": "new", "candidates": [ { "answer_id": "REEF-COMP-003", "score": 0.5606916546821594, "sibling_score": 0.5606916546821594, "answer_score": null, "sibling_qid": "MUM-2022-08-2142-Q004", "sibling_text": "ref oil properties", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Refrigeration-compressor lube oil — properties, selection, and its jobs beyond lubrication", "cross_family": false }, { "answer_id": "REEF-COMP-004", "score": 0.5465893149375916, "sibling_score": 0.5465893149375916, "answer_score": null, "sibling_qid": "MUM-2026-01-1242-Q011", "sibling_text": "refer oil charging method", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Charging, replenishing and draining compressor lube oil — including with no charging pump", "cross_family": false }, { "answer_id": "COW-593-002", "score": 0.5411015152931213, "sibling_score": 0.5411015152931213, "answer_score": null, "sibling_qid": "KOC-2025-07-0627-Q004", "sibling_text": "crude oil washing procedure", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Take me through the COW operation. How is it done, when is it started, and at what pump pressure?", "cross_family": true } ] }, { "qid": "MUM-2026-06-3650-Q003", "text": "crankshaft deflection evaluation?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft Deflection", "tid": "MUM-2026-06-3650", "tray": "review", "candidates": [ { "answer_id": "CSD-BF036-003", "score": 0.7349985241889954, "sibling_score": 0.7349985241889954, "answer_score": null, "sibling_qid": "MUM-2025-12-2901-Q010", "sibling_text": "crankshaft deflection results how to verify", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "A 3/E has handed you the deflection readings — how do you verify they were taken correctly?", "cross_family": false }, { "answer_id": "CRK-DEFL-001", "score": 0.7337333559989929, "sibling_score": 0.7337333559989929, "answer_score": 0.5432682991027832, "sibling_qid": "KOL-2017-08-1316-Q004", "sibling_text": "important parameters to check prior taking crank shaft deflection", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Purpose, timing and scope of crankshaft deflection", "cross_family": false }, { "answer_id": "CRK-DEFL-005", "score": 0.7329362034797668, "sibling_score": 0.7329362034797668, "answer_score": null, "sibling_qid": "KOL-2017-01-3026-Q004", "sibling_text": "crankshaft deflection starting from safeties to procedure to tabulation of results and interpretation of deflection curve", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Plotting and interpreting the deflection curve", "cross_family": false } ] }, { "qid": "MUM-2026-06-3650-Q004", "text": "how to change suction valve in fuel pump?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Pump Delivery Valve", "tid": "MUM-2026-06-3650", "tray": "review", "candidates": [ { "answer_id": "FINJ-004", "score": 0.6857830882072449, "sibling_score": 0.6857830882072449, "answer_score": null, "sibling_qid": "MUM-2025-02-2270-Q005", "sibling_text": "me fuel valve stuck hw to remove", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel injector stuck or seized — removal procedure and precautions", "cross_family": false }, { "answer_id": "PUNCT-VLV-004", "score": 0.6774632930755615, "sibling_score": 0.6774632930755615, "answer_score": 0.5570358216762542, "sibling_qid": "KOL-2022-03-3524-Q001", "sibling_text": "main engine fuel pump overhaul and puncture valve", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Overhaul, fuel-pump linkage, seal-fitting tool and checks", "cross_family": false }, { "answer_id": "FCL-P03-003", "score": 0.665019690990448, "sibling_score": 0.665019690990448, "answer_score": null, "sibling_qid": "KOC-2023-02-2038-Q004", "sibling_text": "sulzar fuel pump valve timing", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Sulzer / RTA fuel pump timing and lead", "cross_family": false } ] }, { "qid": "MUM-2026-06-3651-Q002", "text": "Insulation mat thickness?", "family": "Electrical - Distribution & MSB", "subtopic": "", "tid": "MUM-2026-06-3651", "tray": "review", "candidates": [ { "answer_id": "ELEC-SAFE-002", "score": 0.7706655263900757, "sibling_score": 0.7706655263900757, "answer_score": 0.4011997997760773, "sibling_qid": "MUM-2026-06-3666-Q003", "sibling_text": "insulation mat specifications", "sibling_family": "Electrical - Distribution & MSB", "via": "sibling", "answer_title": "How to order insulating rubber mats", "cross_family": false }, { "answer_id": "INS-CLASS-002", "score": 0.6025139093399048, "sibling_score": 0.6025139093399048, "answer_score": null, "sibling_qid": "KOC-2026-09-2204-Q004", "sibling_text": "insulation material properties", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What are the classes of insulation, their temperature limits and their materials?", "cross_family": true }, { "answer_id": "HV-SYS-P05-001", "score": 0.5956369042396545, "sibling_score": 0.5956369042396545, "answer_score": null, "sibling_qid": "KOL-2025-12-2929-Q003", "sibling_text": "hv msb safeties key ans specifically about mat insulation", "sibling_family": "", "via": "sibling", "answer_title": "HV switchboard (MSB): safeties, interlocks and protective features", "cross_family": false } ] }, { "qid": "MUM-2026-06-3652-Q001", "text": "Type of Engine ?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-06-3652", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.8005254864692688, "sibling_score": 0.8005254864692688, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.7928923964500427, "sibling_score": 0.7928923964500427, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-001", "score": 0.4519229233264923, "sibling_score": null, "answer_score": 0.4519229233264923, "sibling_qid": "", "sibling_text": "1 turbocharger type main engine vs generator engine compressor is centrifugal in both cases only the turbine type differs large slow speed main engine axial flow turbine single stage constant pressure system", "sibling_family": "", "via": "answer_title", "answer_title": "1. Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "MUM-2026-06-3652-Q007", "text": "How to remove MB top shell ME?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE MAIN BEARING", "tid": "MUM-2026-06-3652", "tray": "new", "candidates": [ { "answer_id": "AE-MB-003", "score": 0.45088160037994385, "sibling_score": 0.45088160037994385, "answer_score": 0.33963286876678467, "sibling_qid": "MUM-2024-01-1073-Q008", "sibling_text": "ae main bearing removal procedure how to remove top shell", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Removing the top shell and the main-bearing locking arrangement", "cross_family": false }, { "answer_id": "AE-MB-002", "score": 0.4258517622947693, "sibling_score": 0.4258517622947693, "answer_score": 0.29751982986927034, "sibling_qid": "KOL-2021-05-3407-Q003", "sibling_text": "removal of bottom shell of aux engine", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Removing the lower shell / bottom half of an AE main bearing", "cross_family": false }, { "answer_id": "BEB-A-001", "score": 0.39787131547927856, "sibling_score": 0.39787131547927856, "answer_score": null, "sibling_qid": "MUM-2025-12-2514-Q001", "sibling_text": "removal of bottom end brg to access remove top half", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Removing, overhauling, inspecting and refitting the bottom end bearing", "cross_family": true } ] }, { "qid": "MUM-2026-06-3652-Q008", "text": "How to remove MB bottom shell ME?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE MAIN BEARING", "tid": "MUM-2026-06-3652", "tray": "new", "candidates": [ { "answer_id": "AE-MB-002", "score": 0.5354013442993164, "sibling_score": 0.5354013442993164, "answer_score": 0.39581974446773527, "sibling_qid": "KOL-2021-05-3407-Q003", "sibling_text": "removal of bottom shell of aux engine", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Removing the lower shell / bottom half of an AE main bearing", "cross_family": false }, { "answer_id": "XHD-BRG-C-002", "score": 0.4947332441806793, "sibling_score": 0.4947332441806793, "answer_score": null, "sibling_qid": "KOL-2025-10-2021-Q008", "sibling_text": "crosshead bottom shell removal procedure", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "B. Crosshead bearing overhaul and removal: exact steps, tackle, withdrawing the pin", "cross_family": true }, { "answer_id": "MN-BRG-C-001", "score": 0.4827496409416199, "sibling_score": 0.4827496409416199, "answer_score": null, "sibling_qid": "KOL-2026-09-4293-Q011", "sibling_text": "bottom end bearing top shell removal process", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Opening, removing and overhauling a main bearing", "cross_family": true } ] }, { "qid": "MUM-2026-06-3652-Q012", "text": "CI welding?", "family": "Workshop & Welding", "subtopic": "Plasma / Arc / TIG / MIG", "tid": "MUM-2026-06-3652", "tray": "review", "candidates": [ { "answer_id": "LH-ELEC-001", "score": 0.7126665711402893, "sibling_score": 0.7126665711402893, "answer_score": null, "sibling_qid": "MUM-2026-06-3451-Q014", "sibling_text": "ci welding electrodes", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "1. Where are low-hydrogen electrodes used onboard?", "cross_family": false }, { "answer_id": "WELD-PATM-002", "score": 0.6992650032043457, "sibling_score": 0.6992650032043457, "answer_score": null, "sibling_qid": "MUM-2026-06-3494-Q010", "sibling_text": "ci welding electrode details", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Manual metal-arc – electrode and current selection", "cross_family": false }, { "answer_id": "PIPEFAB-011", "score": 0.6373723149299622, "sibling_score": 0.6373723149299622, "answer_score": null, "sibling_qid": "CHE-2026-05-0643-Q011", "sibling_text": "gi welding procedure", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Explain the repair procedure for a GI or GRP pipe, including welding a GI pipe", "cross_family": false } ] }, { "qid": "MUM-2026-06-3652-Q015", "text": "Tc construction?", "family": "Turbocharger", "subtopic": "", "tid": "MUM-2026-06-3652", "tray": "new", "candidates": [ { "answer_id": "TCS-059-P04-023", "score": 0.5326467156410217, "sibling_score": 0.5326467156410217, "answer_score": null, "sibling_qid": "KOL-2025-07-2002-Q003", "sibling_text": "developments of tc", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Recent turbocharging developments / latest engine developments", "cross_family": false }, { "answer_id": "TC-OVHL-001", "score": 0.5115275979042053, "sibling_score": 0.5115275979042053, "answer_score": null, "sibling_qid": "MUM-2026-03-2638-Q006", "sibling_text": "after overhaul things to check in tc", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Main-engine turbocharger overhaul — procedure and post-overhaul checks", "cross_family": false }, { "answer_id": "TC-CONST-005", "score": 0.5099493265151978, "sibling_score": 0.5099493265151978, "answer_score": null, "sibling_qid": "MUM-2025-09-1190-Q001", "sibling_text": "t c compressor full construction", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Compressor/blower side components and air flow", "cross_family": false } ] }, { "qid": "MUM-2026-06-3653-Q023", "text": "Hazardous zone describe ?", "family": "Cargo Ops - Tankers", "subtopic": "IG System", "tid": "MUM-2026-06-3653", "tray": "new", "candidates": [ { "answer_id": "FLD-601-002", "score": 0.588432788848877, "sibling_score": 0.588432788848877, "answer_score": null, "sibling_qid": "MUM-2026-05-3085-Q007", "sibling_text": "what is flammability zone", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What is the flammable range and the flammability zone? What happens inside a cargo tank below 1% LEL?", "cross_family": false }, { "answer_id": "TCM-374-005", "score": 0.5834717154502869, "sibling_score": 0.5834717154502869, "answer_score": null, "sibling_qid": "KOC-2026-04-0912-Q020", "sibling_text": "hazard zone in chemical tanker", "sibling_family": "", "via": "sibling", "answer_title": "Gas-freeing a tanker after discharge or before dry dock (why through the IG system)", "cross_family": false }, { "answer_id": "TNK-SAFE-BF26-003", "score": 0.5550423860549927, "sibling_score": 0.5550423860549927, "answer_score": 0.457001730799675, "sibling_qid": "KOL-2026-01-1153-Q006", "sibling_text": "different type of zones in oil tanker in hazardous area example of equipments fitted in different zones", "sibling_family": "", "via": "sibling", "answer_title": "What safeties, including electrical safeties and Ex ratings, are provided on the deck of a tanker?", "cross_family": false } ] }, { "qid": "MUM-2026-06-3654-Q001", "text": "Introduction, How many attempts.", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-06-3654", "tray": "new", "candidates": [ { "answer_id": "CHAIN-TENS-A-003", "score": 0.40849536657333374, "sibling_score": 0.40849536657333374, "answer_score": null, "sibling_qid": "MUM-2026-02-2546-Q006", "sibling_text": "6 repeat", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "Chain Tightening Procedure — MC / MC-C / ME", "cross_family": true }, { "answer_id": "CTRL-TL-010", "score": 0.37857675552368164, "sibling_score": 0.37857675552368164, "answer_score": null, "sibling_qid": "KOL-2018-12-2250-Q004", "sibling_text": "4 failsafematic", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Pneumatic control: nozzle-flapper, DP, actuators and fail-safe", "cross_family": true }, { "answer_id": "ISM-AUDIT-P01-001", "score": 0.3664073944091797, "sibling_score": 0.3664073944091797, "answer_score": null, "sibling_qid": "KOC-2021-07-0009-Q006", "sibling_text": "ism preparation i told more than 10 but he is not satisfied", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Preparing engine room, records and documents for ISM/SMS audit (2/E)", "cross_family": true } ] }, { "qid": "MUM-2026-06-3654-Q003", "text": "What is skin effect?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Corona Effect / Skin Effect / Power Factor", "tid": "MUM-2026-06-3654", "tray": "new", "candidates": [ { "answer_id": "HV-SYS-P06-004", "score": 0.6345981955528259, "sibling_score": 0.6345981955528259, "answer_score": 0.33012615889310837, "sibling_qid": "MUM-2026-04-2079-Q003", "sibling_text": "what is skin effect", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Corona, ionisation and skin effect in HV oral questions", "cross_family": false }, { "answer_id": "CABLE-INS-E-004", "score": 0.6345576047897339, "sibling_score": 0.6345576047897339, "answer_score": 0.29693461060523985, "sibling_qid": "MUM-2024-12-1480-Q005", "sibling_text": "skin effect", "sibling_family": "", "via": "sibling", "answer_title": "Conductor properties, copper and skin effect", "cross_family": false }, { "answer_id": "BC-IMSBC-002", "score": 0.4487797021865845, "sibling_score": 0.4487797021865845, "answer_score": null, "sibling_qid": "CHE-2026-02-0114-Q012", "sibling_text": "double skin and single skin requirements", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "2. Bulk carrier construction and structural design", "cross_family": true } ] }, { "qid": "MUM-2026-06-3655-Q001", "text": "LRIT&AIS different?", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "MUM-2026-06-3655", "tray": "new", "candidates": [ { "answer_id": "PI-211-003", "score": 0.42138227820396423, "sibling_score": 0.42138227820396423, "answer_score": 0.24462628811597822, "sibling_qid": "KOL-2025-12-2940-Q006", "sibling_text": "differences between pi and ir", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "PI versus insulation resistance, and why the 1-minute and 10-minute readings are compared", "cross_family": true }, { "answer_id": "WIDAS-SMK-007", "score": 0.41590192914009094, "sibling_score": 0.41590192914009094, "answer_score": null, "sibling_qid": "MUM-2026-03-0855-Q003", "sibling_text": "diff between iso ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Smoke sampling line — testing, confirming clear, and what is in the tube", "cross_family": true }, { "answer_id": "LSA-LB-A-009", "score": 0.4117533266544342, "sibling_score": 0.4117533266544342, "answer_score": null, "sibling_qid": "MUM-2022-07-0020-Q017", "sibling_text": "diff between lb and rb", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat vs liferaft vs rescue boat — and why each is carried", "cross_family": true } ] }, { "qid": "MUM-2026-06-3655-Q004", "text": "SOLAS Ch. 12- – Alarm levels?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Solas Pack A / B", "tid": "MUM-2026-06-3655", "tray": "new", "candidates": [ { "answer_id": "SOLAS12-BC-E-001", "score": 0.5320391654968262, "sibling_score": 0.5320391654968262, "answer_score": 0.4383573472499847, "sibling_qid": "KOL-2022-04-0622-Q005", "sibling_text": "solas chapter 12 water ingress all regulations where alarm", "sibling_family": "", "via": "sibling", "answer_title": "Water ingress detection & alarm system (WIDAS) — SOLAS XII/12", "cross_family": false }, { "answer_id": "IGAT-583-001", "score": 0.5007650852203369, "sibling_score": 0.5007650852203369, "answer_score": null, "sibling_qid": "MUM-2025-12-0628-Q002", "sibling_text": "2 ig all alarm and trip", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "State all the alarms, trips and safety cut-outs provided on a tanker inert gas (IG) system.", "cross_family": true }, { "answer_id": "FSH-DET-002", "score": 0.4972994327545166, "sibling_score": 0.4972994327545166, "answer_score": null, "sibling_qid": "KOL-2017-08-0107-Q003", "sibling_text": "smoke alarm level and unit", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Working of smoke detectors — ionization type and cargo-hold smoke detection", "cross_family": true } ] }, { "qid": "MUM-2026-06-3655-Q006", "text": "MLC. Ship owner's liability.?", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2026-06-3655", "tray": "review", "candidates": [ { "answer_id": "CLC-CIV-B-003", "score": 0.7482377290725708, "sibling_score": 0.7482377290725708, "answer_score": null, "sibling_qid": "MUM-2026-04-0880-Q004", "sibling_text": "mlc what is shipowner liability", "sibling_family": "MLC", "via": "sibling", "answer_title": "LLMC: purpose, scope and limitation of maritime claims", "cross_family": false }, { "answer_id": "MLC-WRH-B-009", "score": 0.6120724678039551, "sibling_score": 0.6120724678039551, "answer_score": null, "sibling_qid": "CHE-2025-08-0426-Q009", "sibling_text": "ship owner abandoned the ship what will you do as per mlc i told financial security certificate for repartation", "sibling_family": "MLC", "via": "sibling", "answer_title": "Abandonment — financial security and repatriation", "cross_family": false }, { "answer_id": "CLC-CIV-A-001", "score": 0.5091435968875885, "sibling_score": 0.46959784626960754, "answer_score": 0.5091435968875885, "sibling_qid": "KOL-2022-11-0696-Q007", "sibling_text": "oil pollution damage why and role of shipowner features etc", "sibling_family": "Other Conventions", "via": "answer_title", "answer_title": "CLC Convention — objective, scope and shipowner liability", "cross_family": true } ] }, { "qid": "MUM-2026-06-3655-Q007", "text": "MLC tripartite, CBA?", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2026-06-3655", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-010", "score": 0.4827400743961334, "sibling_score": 0.4827400743961334, "answer_score": 0.2409264013171196, "sibling_qid": "MUM-2025-11-0573-Q005", "sibling_text": "which parties are a part of cba", "sibling_family": "MLC", "via": "sibling", "answer_title": "SEA, the CBA parties, and how wages are set — action on non-payment", "cross_family": false }, { "answer_id": "MLC-WRH-B-006", "score": 0.38729697465896606, "sibling_score": 0.38729697465896606, "answer_score": 0.2882441222667694, "sibling_qid": "MUM-2026-06-3656-Q002", "sibling_text": "certificates under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false }, { "answer_id": "ISMNC-002", "score": 0.3855552077293396, "sibling_score": 0.3855552077293396, "answer_score": null, "sibling_qid": "MUM-2026-01-0685-Q005", "sibling_text": "mlc mnc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a major non-conformity under the ISM Code? Give the definition and name some.", "cross_family": true } ] }, { "qid": "MUM-2026-06-3656-Q001", "text": "DP-1, DP-2 and DP-3 difference?", "family": "", "subtopic": "", "tid": "MUM-2026-06-3656", "tray": "new", "candidates": [ { "answer_id": "ISPS-SL-003", "score": 0.5010186433792114, "sibling_score": 0.5010186433792114, "answer_score": null, "sibling_qid": "MUM-2026-03-2929-Q009", "sibling_text": "isps level difference between 2 3", "sibling_family": "ISPS", "via": "sibling", "answer_title": "Security levels — who sets them, ship vs port, level 2 vs 3", "cross_family": false }, { "answer_id": "A6-NSEC-005", "score": 0.47453904151916504, "sibling_score": 0.47453904151916504, "answer_score": null, "sibling_qid": "MUM-2024-11-2777-Q008", "sibling_text": "diff between seemp 2 3", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP — Part I, II & III", "cross_family": false }, { "answer_id": "MEB-MEC-P03-001", "score": 0.44770461320877075, "sibling_score": 0.44770461320877075, "answer_score": 0.2582096725702286, "sibling_qid": "KOL-2022-10-1713-Q001", "sibling_text": "diff bw me b and me c", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "ME-B vs ME-C — the core difference", "cross_family": false } ] }, { "qid": "MUM-2026-06-3656-Q004", "text": "Action if get violated during emergency drill?", "family": "MLC", "subtopic": "", "tid": "MUM-2026-06-3656", "tray": "new", "candidates": [ { "answer_id": "EDG-P01-004", "score": 0.5643943548202515, "sibling_score": 0.5643943548202515, "answer_score": null, "sibling_qid": "KOC-2025-12-0773-Q010", "sibling_text": "emergency s g drill procedure", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Emergency generator — explain it as a 2nd Engineer", "cross_family": true }, { "answer_id": "OMD-001", "score": 0.5472998023033142, "sibling_score": 0.5472998023033142, "answer_score": null, "sibling_qid": "KOL-2019-12-3304-Q003", "sibling_text": "action to take after omd alarm", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "The OMD alarm sounds on your watch. What are your actions, the checks and crankcase inspection that follow, and what are the alarm levels?", "cross_family": true }, { "answer_id": "CCE-322-005", "score": 0.5387454032897949, "sibling_score": 0.5387454032897949, "answer_score": null, "sibling_qid": "KOC-2026-05-2126-Q001", "sibling_text": "omd alarmed actions", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Action on an OMD / crankcase-explosion alarm; checking a faulty sensor", "cross_family": true } ] }, { "qid": "MUM-2026-06-3656-Q008", "text": "What is Citizen.?", "family": "", "subtopic": "", "tid": "MUM-2026-06-3656", "tray": "new", "candidates": [ { "answer_id": "CII-P01-001", "score": 0.3179623782634735, "sibling_score": 0.3179623782634735, "answer_score": 0.17141574323177336, "sibling_qid": "KOC-2025-12-0751-Q005", "sibling_text": "what is cii", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is CII and what is its purpose?", "cross_family": false }, { "answer_id": "CERT-LIST-P03-002", "score": 0.30153829157352446, "sibling_score": null, "answer_score": 0.30153829157352446, "sibling_qid": "", "sibling_text": "certificate of registration registry nationality particulars", "sibling_family": "", "via": "answer_title", "answer_title": "Certificate of Registration / Registry — nationality & particulars", "cross_family": false }, { "answer_id": "IACS-324-003", "score": 0.1847556874155998, "sibling_score": null, "answer_score": 0.1847556874155998, "sibling_qid": "", "sibling_text": "3 what is a recognized organization how is it recognized by a flag state and how can a classification society become one ro an organisation usually a class society authorised by a flag state to perform statutory survey and certification on its behalf why delegate under unclos article 94 the flag must exercise jurisdiction over its ships but many registers lack worldwide survey capacity so they ent", "sibling_family": "", "via": "answer_title", "answer_title": "3. What is a Recognized Organization, how is it recognized by a flag State, and how can a classification society become one?", "cross_family": false } ] }, { "qid": "MUM-2026-06-3656-Q009", "text": "What is HRA?", "family": "Drydock & Underwater Surveys", "subtopic": "DD Preparation / Plans", "tid": "MUM-2026-06-3656", "tray": "new", "candidates": [ { "answer_id": "FUSE-HRC-004", "score": 0.48043376207351685, "sibling_score": 0.48043376207351685, "answer_score": null, "sibling_qid": "MUM-2024-02-1427-Q001", "sibling_text": "what is hrc", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "HRC fuse – construction, operation, materials, identification", "cross_family": true }, { "answer_id": "LB-DAVIT-HRU-004", "score": 0.4315149784088135, "sibling_score": 0.4315149784088135, "answer_score": 0.2663864284753799, "sibling_qid": "MUM-2022-07-0015-Q009", "sibling_text": "hru functioning", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Function of the hydrostatic release unit (HRU)", "cross_family": true }, { "answer_id": "LRHR-B-009", "score": 0.42945700883865356, "sibling_score": 0.42945700883865356, "answer_score": 0.25639906972646714, "sibling_qid": "KOL-2019-07-0302-Q004", "sibling_text": "hru function", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What is the HRU, where is it fitted, and what is its function?", "cross_family": true } ] }, { "qid": "MUM-2026-06-3656-Q010", "text": "OWs survey completed how to put back in service?", "family": "MARPOL - Annex I (Oil)", "subtopic": "Oily Water / OWS / ORB", "tid": "MUM-2026-06-3656", "tray": "new", "candidates": [ { "answer_id": "OWS-ORB-002", "score": 0.4855373501777649, "sibling_score": 0.4855373501777649, "answer_score": null, "sibling_qid": "MUM-2025-05-2800-Q006", "sibling_text": "iopp survey ows testing at port ows not working and reporting and 1 more i did not remeber", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "2. OWS / 15 ppm alarm not working — reporting and control actions as 2/E", "cross_family": false }, { "answer_id": "OWS-ORB-003", "score": 0.4854794144630432, "sibling_score": 0.4854794144630432, "answer_score": 0.3047095000743866, "sibling_qid": "KOL-2019-02-3214-Q003", "sibling_text": "ows survey", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "3. OWS checks for survey / port testing as 2/E", "cross_family": false }, { "answer_id": "OWS-15PPM-001", "score": 0.4604140520095825, "sibling_score": 0.4604140520095825, "answer_score": null, "sibling_qid": "CHE-2025-08-0408-Q001", "sibling_text": "functional checks as second engineer in ows and preparation for survey", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "MUM-2026-06-3656-Q011", "text": "Describe your engine room machineries detail and how much rpm of main engine and type of propeller and propeller Rpm.?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-06-3656", "tray": "new", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.618928849697113, "sibling_score": 0.618928849697113, "answer_score": null, "sibling_qid": "MUM-2026-09-3882-Q001", "sibling_text": "introduction types of ship main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ENG-NOM-006", "score": 0.6111355423927307, "sibling_score": 0.6111355423927307, "answer_score": null, "sibling_qid": "MUM-2026-04-1320-Q003", "sibling_text": "main engine and generator specifications", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Short-form asks: SMC-C, LMC, and ME vs MC quickly", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.5992059111595154, "sibling_score": 0.5992059111595154, "answer_score": null, "sibling_qid": "CHE-2026-09-3912-Q001", "sibling_text": "what was the power of your last ship s engine tell me about your last ship main engine what are all the details about it mentioned in the first page of your engine manual tell me everything", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false } ] }, { "qid": "MUM-2026-06-3656-Q012", "text": "LSA items in your ship?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "LSA Code", "tid": "MUM-2026-06-3656", "tray": "new", "candidates": [ { "answer_id": "LSA-CODE-BF044-001", "score": 0.5287836790084839, "sibling_score": 0.5287836790084839, "answer_score": null, "sibling_qid": "KOL-2025-10-1101-Q004", "sibling_text": "lsa is not valid for which ship", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Which ships is SOLAS Chapter III / the LSA Code not valid for, or exempted from?", "cross_family": false }, { "answer_id": "ISM-SMCDOC-A-001", "score": 0.47230756282806396, "sibling_score": 0.47230756282806396, "answer_score": null, "sibling_qid": "KOC-2024-08-0385-Q010", "sibling_text": "what are the items mentioned in doc expecting company name and category of ship", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM certificates: the DOC and SMC family", "cross_family": true }, { "answer_id": "IMDG-004", "score": 0.469199538230896, "sibling_score": 0.469199538230896, "answer_score": null, "sibling_qid": "CHE-2025-10-0070-Q017", "sibling_text": "who you know imdg cargo taken by you as well implemented in ship", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "How do you identify IMDG cargo on board — how you know it is coming, and how you identify it with no documents", "cross_family": true } ] }, { "qid": "MUM-2026-06-3656-Q014", "text": "How much water is for each person. If the season is not rainy how you will mange cons of water?", "family": "Boilers - Safety & Survey", "subtopic": "Water Test (Chloride / pH / Phosphate)", "tid": "MUM-2026-06-3656", "tray": "new", "candidates": [ { "answer_id": "LLC-P05-002", "score": 0.5174436569213867, "sibling_score": 0.5174436569213867, "answer_score": null, "sibling_qid": "MUM-2026-06-3479-Q007", "sibling_text": "fresh water allowance", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Fresh Water Allowance: formula, use and draft change", "cross_family": true }, { "answer_id": "FIRE-P02-03", "score": 0.47135090827941895, "sibling_score": 0.47135090827941895, "answer_score": null, "sibling_qid": "MUM-2025-07-0345-Q007", "sibling_text": "hyper mist if ums all water gets drained and no water what alternate option", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist — low water level or empty FW tank contingency", "cross_family": true }, { "answer_id": "FWG-RO-003", "score": 0.465329110622406, "sibling_score": 0.465329110622406, "answer_score": null, "sibling_qid": "MUM-2022-08-2138-Q006", "sibling_text": "fwg not producing enough water what to do", "sibling_family": "Fresh Water & Domestic Systems", "via": "sibling", "answer_title": "The FWG is not producing enough water or its efficiency has dropped. Reasons, checks and action?", "cross_family": true } ] }, { "qid": "MUM-2026-06-3658-Q004", "text": "solas chapter 11-A tell me about safety aspect ?", "family": "SOLAS - General (HOLD)", "subtopic": "Solas Chapter 12 - Bulk", "tid": "MUM-2026-06-3658", "tray": "new", "candidates": [ { "answer_id": "SOLAS-OVW-011", "score": 0.5580580830574036, "sibling_score": 0.5580580830574036, "answer_score": null, "sibling_qid": "KOL-2019-03-0266-Q001", "sibling_text": "additional safety feature acording to solas 11 1", "sibling_family": "", "via": "sibling", "answer_title": "SOLAS Chapter XI-1 — special measures (safety): IMO number marking", "cross_family": false }, { "answer_id": "SOLAS12-BC-B-001", "score": 0.5363439321517944, "sibling_score": 0.5363439321517944, "answer_score": 0.4419539302587509, "sibling_qid": "KOL-2021-01-0459-Q004", "sibling_text": "additional safeties in bulk carrier according to chapter12 of solas", "sibling_family": "", "via": "sibling", "answer_title": "Additional safety measures for bulk carriers (SOLAS Chapter XII)", "cross_family": false }, { "answer_id": "MR-DS-PV-B-001", "score": 0.5240062475204468, "sibling_score": 0.5240062475204468, "answer_score": null, "sibling_qid": "KOL-2020-09-0426-Q001", "sibling_text": "safety in ig when running one main safety if it is not there it can be havoc for human or ship", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "1. Function and working principle of the tanker deck seal", "cross_family": true } ] }, { "qid": "MUM-2026-06-3658-Q007", "text": "what is adjacent to keel?", "family": "SOLAS", "subtopic": "Keel & Framing", "tid": "MUM-2026-06-3658", "tray": "new", "candidates": [ { "answer_id": "SHELL-PLT-B-001", "score": 0.604315459728241, "sibling_score": 0.604315459728241, "answer_score": null, "sibling_qid": "KOC-2026-02-0799-Q005", "sibling_text": "show bilge keel shear strake duct keel double bottom tank", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Sheer strake — location, why strengthened, deck-edge / gunwale connection", "cross_family": false }, { "answer_id": "KEEL-FRM-B-002", "score": 0.5831190943717957, "sibling_score": 0.5831190943717957, "answer_score": 0.46402795910835265, "sibling_qid": "MUM-2026-09-3918-Q005", "sibling_text": "what are the types of keels explain the purpose of a duct keel", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Duct keel and keel arrangements", "cross_family": false }, { "answer_id": "BK-003", "score": 0.5747669339179993, "sibling_score": 0.5747669339179993, "answer_score": null, "sibling_qid": "MUM-2026-01-0705-Q001", "sibling_text": "bilge keel purpose length", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "What are the bilge-keel design, length, depth and protrusion requirements?", "cross_family": false } ] }, { "qid": "MUM-2026-06-3658-Q008", "text": "what is the function of garboard strake?", "family": "Ship Construction & Stability", "subtopic": "Shell Plating / Strakes", "tid": "MUM-2026-06-3658", "tray": "new", "candidates": [ { "answer_id": "SHELL-PLT-B-003", "score": 0.6300163865089417, "sibling_score": 0.6300163865089417, "answer_score": 0.5105353355407715, "sibling_qid": "CHE-2026-02-0107-Q004", "sibling_text": "gardboard strake", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Garboard and bilge strakes", "cross_family": false }, { "answer_id": "SHELL-PLT-B-001", "score": 0.5620285868644714, "sibling_score": 0.5620285868644714, "answer_score": null, "sibling_qid": "KOL-2019-10-0331-Q006", "sibling_text": "garboard strake sheer strake and stringer strake difference and wat propose they serve", "sibling_family": "", "via": "sibling", "answer_title": "Sheer strake — location, why strengthened, deck-edge / gunwale connection", "cross_family": false }, { "answer_id": "SCS-DEF-004", "score": 0.49099069833755493, "sibling_score": 0.49099069833755493, "answer_score": null, "sibling_qid": "MUM-2026-06-3509-Q004", "sibling_text": "gunwale", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "4. What is the gunwale?", "cross_family": false } ] }, { "qid": "MUM-2026-06-3659-Q001", "text": "Status of other functions and which attempt for Fn -3?", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-06-3659", "tray": "new", "candidates": [ { "answer_id": "SEEMP-123-B-001", "score": 0.491582453250885, "sibling_score": 0.491582453250885, "answer_score": null, "sibling_qid": "KOC-2026-03-0880-Q002", "sibling_text": "function 3 contents", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SEEMP Part III — the ship's operational carbon-intensity (CII) plan", "cross_family": true }, { "answer_id": "SG-055-B-001", "score": 0.46376311779022217, "sibling_score": 0.46376311779022217, "answer_score": null, "sibling_qid": "KOL-2026-01-1156-Q006", "sibling_text": "deadman handle results passed fn3", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Emergency steering operation and the deadman handle", "cross_family": true }, { "answer_id": "LLC-SUR-POA-3-FINAL-001", "score": 0.4487932622432709, "sibling_score": 0.4487932622432709, "answer_score": null, "sibling_qid": "MUM-2025-09-0469-Q005", "sibling_text": "condition of assignment few x questions then said we will switch to other fn", "sibling_family": "", "via": "sibling", "answer_title": "Conditions of assignment of freeboard", "cross_family": false } ] }, { "qid": "MUM-2026-06-3659-Q002", "text": "Type of ship sailed (LPG)?", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-06-3659", "tray": "review", "candidates": [ { "answer_id": "LPG-LNG-009", "score": 0.8309839367866516, "sibling_score": 0.8309839367866516, "answer_score": 0.4763505458831787, "sibling_qid": "CHE-2026-04-0164-Q001", "sibling_text": "type of ship sailed lpg carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Gas-carrier fundamentals and ship-specific traps", "cross_family": false }, { "answer_id": "IGC-GAS-004", "score": 0.7235162258148193, "sibling_score": 0.7235162258148193, "answer_score": null, "sibling_qid": "KOL-2025-08-1014-Q002", "sibling_text": "type of ship sailed lpg classification of gas carriers of as per igc code", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Ship-type classification under the IGC Code — 1G / 2G / 2PG / 3G", "cross_family": true }, { "answer_id": "COT-01", "score": 0.7058379054069519, "sibling_score": 0.7058379054069519, "answer_score": null, "sibling_qid": "KOC-2026-04-0892-Q003", "sibling_text": "type of ship sailed tanker", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Oil-tanker types, definitions and cargo capability", "cross_family": false } ] }, { "qid": "MUM-2026-06-3659-Q003", "text": "Tank type?", "family": "Cargo Ops - Tankers", "subtopic": "Cargo Tank Construction", "tid": "MUM-2026-06-3659", "tray": "review", "candidates": [ { "answer_id": "MARVS-TANK-005", "score": 0.8376367688179016, "sibling_score": 0.8376367688179016, "answer_score": null, "sibling_qid": "MUM-2026-04-0876-Q003", "sibling_text": "tank type", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Gas-carrier ship-type classification — 2G, 2PG and the IGC-code type criteria", "cross_family": false }, { "answer_id": "IGC-IGF-007", "score": 0.7026326656341553, "sibling_score": 0.7026326656341553, "answer_score": null, "sibling_qid": "MUM-2026-02-0742-Q002", "sibling_text": "type of tanks in igc code", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "IGC cargo tank types, containment, barriers and materials", "cross_family": true }, { "answer_id": "GC-TANK-001", "score": 0.7006126046180725, "sibling_score": 0.7006126046180725, "answer_score": 0.42961862683296204, "sibling_qid": "MUM-2026-02-0742-Q003", "sibling_text": "type of independant tanks", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Main cargo containment and independent tank types on LPG and LNG carriers", "cross_family": true } ] }, { "qid": "MUM-2026-06-3659-Q010", "text": "What is DMLC -1 and DMLC -2 ?", "family": "MLC", "subtopic": "MLC / DMLC / Work-Rest", "tid": "MUM-2026-06-3659", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.70712810754776, "sibling_score": 0.70712810754776, "answer_score": 0.2907843619585037, "sibling_qid": "MUM-2026-01-0673-Q004", "sibling_text": "dmlc 1 and dmlc 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "ENG-NOM-006", "score": 0.23111474514007568, "sibling_score": null, "answer_score": 0.23111474514007568, "sibling_qid": "", "sibling_text": "short form asks smc c lmc and me vs mc quickly smc c super long stroke man programme camshaft controlled compact lmc l long stroke the l is the stroke letter not a control or compact letter", "sibling_family": "", "via": "answer_title", "answer_title": "Short-form asks: SMC-C, LMC, and ME vs MC quickly", "cross_family": false }, { "answer_id": "MLC-WRH-B-002", "score": 0.22360784262418745, "sibling_score": null, "answer_score": 0.22360784262418745, "sibling_qid": "", "sibling_text": "work and rest hours under mlc the criteria the weekly limit the intervals regulation 2 3 standard a2 3 maximum hours of work or minimum hours of rest the two systems are alternatives not cumulative the dmlc part i states which the flag has chosen maximum work 14 hours in any 24 hour period 72 hours in any 7 day period", "sibling_family": "", "via": "answer_title", "answer_title": "Work and rest hours under MLC — the criteria, the weekly limit, the intervals", "cross_family": false } ] }, { "qid": "MUM-2026-06-3660-Q001", "text": "Which attempt ?", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-06-3660", "tray": "new", "candidates": [ { "answer_id": "ANG-ENC-005", "score": 0.4396066665649414, "sibling_score": 0.4396066665649414, "answer_score": null, "sibling_qid": "CHE-2025-08-0514-Q001", "sibling_text": "if one fail what will happen", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Encoder failure: redundancy, offset, backup and emergency starting", "cross_family": true }, { "answer_id": "IGAT-583-004", "score": 0.43464022874832153, "sibling_score": 0.43464022874832153, "answer_score": null, "sibling_qid": "KOC-2021-07-0013-Q006", "sibling_text": "ig fail what action int", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "As Second Engineer, what actions do you take if the inert gas plant of a crude oil tanker is repeatedly tripping on IG high temperature?", "cross_family": true }, { "answer_id": "CHEM-PA-011", "score": 0.4332663416862488, "sibling_score": 0.4332663416862488, "answer_score": null, "sibling_qid": "MUM-2026-03-2938-Q002", "sibling_text": "which vessel", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "What ‘en route’ means for Annex II discharge", "cross_family": false } ] }, { "qid": "MUM-2026-06-3660-Q003", "text": "What type of turbine ?", "family": "Cargo Ops - Tankers", "subtopic": "COPT", "tid": "MUM-2026-06-3660", "tray": "review", "candidates": [ { "answer_id": "COPT-BF043-003", "score": 0.7836178541183472, "sibling_score": 0.7836178541183472, "answer_score": null, "sibling_qid": "MUM-2026-05-3327-Q007", "sibling_text": "copt turbine type", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "3. Starting and running a COPT; bringing No.2 on with No.1 running", "cross_family": false }, { "answer_id": "COT-P03-13", "score": 0.7175201773643494, "sibling_score": 0.7175201773643494, "answer_score": 0.5017448872327804, "sibling_qid": "KOC-2026-02-1102-Q003", "sibling_text": "what is impulse turbine", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Steam-driven COPT — the impulse-turbine principle and safe warming-through to load", "cross_family": false }, { "answer_id": "TC-CONST-004", "score": 0.6627317667007446, "sibling_score": 0.6627317667007446, "answer_score": null, "sibling_qid": "MUM-2026-03-2937-Q003", "sibling_text": "type of vanes in turbine", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbine-side components: nozzle rings, vanes and blade fitting", "cross_family": true } ] }, { "qid": "MUM-2026-06-3662-Q004", "text": "Bottom platform flooding, actions.? ", "family": "Auxiliary Equipment", "subtopic": "General Auxiliary Machinery", "tid": "MUM-2026-06-3662", "tray": "new", "candidates": [ { "answer_id": "CAS-ESTOP-001", "score": 0.585786759853363, "sibling_score": 0.585786759853363, "answer_score": 0.37739040404558183, "sibling_qid": "KOL-2019-03-3227-Q004", "sibling_text": "e r flooding action", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Engine-room flooding / rapidly rising bilges — immediate action as 2/E", "cross_family": true }, { "answer_id": "DDHSC-004", "score": 0.5438202619552612, "sibling_score": 0.5438202619552612, "answer_score": null, "sibling_qid": "KOL-2019-11-3287-Q002", "sibling_text": "checks when flooding after dd", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "What checks are carried out after docking, and what are the first checks once the ship is out of dock?", "cross_family": true }, { "answer_id": "SEA-CHEST-006", "score": 0.5102133750915527, "sibling_score": 0.5102133750915527, "answer_score": null, "sibling_qid": "MUM-2026-01-2529-Q004", "sibling_text": "3 e raised engineer call and he s on bottom platform water has reached above bottom reason is leak has happened in common sea chest valve your action as 2e", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "2/E actions: leak, crack, fouling, stuck valve, valve-life", "cross_family": true } ] }, { "qid": "MUM-2026-06-3662-Q011", "text": "Bottom flooding action ?", "family": "SOLAS - Fire Safety", "subtopic": "Emergency Fire Pump", "tid": "MUM-2026-06-3662", "tray": "new", "candidates": [ { "answer_id": "CAS-ESTOP-001", "score": 0.5886471271514893, "sibling_score": 0.5886471271514893, "answer_score": 0.3671099290251732, "sibling_qid": "KOL-2019-03-3227-Q004", "sibling_text": "e r flooding action", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Engine-room flooding / rapidly rising bilges — immediate action as 2/E", "cross_family": true }, { "answer_id": "DDHSC-004", "score": 0.5409109592437744, "sibling_score": 0.5409109592437744, "answer_score": null, "sibling_qid": "KOL-2019-11-3287-Q002", "sibling_text": "checks when flooding after dd", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "What checks are carried out after docking, and what are the first checks once the ship is out of dock?", "cross_family": true }, { "answer_id": "FOAM32-P07-002", "score": 0.5264638662338257, "sibling_score": 0.5264638662338257, "answer_score": null, "sibling_qid": "KOL-2018-06-2202-Q017", "sibling_text": "er flooding with foam", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Engine-room foam operation — flooding, discharge rate and dissipation", "cross_family": false } ] }, { "qid": "MUM-2026-06-3662-Q015", "text": "Water from Ae indicator cock ?", "family": "Refrigeration & AC", "subtopic": "Comfort Zone", "tid": "MUM-2026-06-3662", "tray": "review", "candidates": [ { "answer_id": "SEA-CHEST-006", "score": 0.6984435319900513, "sibling_score": 0.6984435319900513, "answer_score": null, "sibling_qid": "MUM-2026-01-2527-Q004", "sibling_text": "ae water coming out from all indicator cocks what action", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "2/E actions: leak, crack, fouling, stuck valve, valve-life", "cross_family": true }, { "answer_id": "SAV-003", "score": 0.6653597354888916, "sibling_score": 0.6653597354888916, "answer_score": null, "sibling_qid": "MUM-2026-02-2546-Q004", "sibling_text": "ae starting time water is coming from indicator cockw while blow through what action as 2e", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Action when a unit starting air valve leaks or the line goes red hot in manoeuvring", "cross_family": true }, { "answer_id": "LWL-006", "score": 0.5046401023864746, "sibling_score": 0.5046401023864746, "answer_score": null, "sibling_qid": "KOL-2020-11-3366-Q001", "sibling_text": "boiler gauge not showing water level action as 2e", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "On watch you find no water in the boiler gauge glass. What are your checks and immediate actions? What if both gauge glasses read wrong?", "cross_family": true } ] }, { "qid": "MUM-2026-06-3662-Q019", "text": "Rato controller ?", "family": "Boilers - Operations & Firing", "subtopic": "Air Fuel Ratio", "tid": "MUM-2026-06-3662", "tray": "new", "candidates": [ { "answer_id": "CTRL-TL-002", "score": 0.48172593116760254, "sibling_score": 0.48172593116760254, "answer_score": null, "sibling_qid": "MUM-2023-01-1040-Q015", "sibling_text": "function of controller", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Function of a controller, and types used on board", "cross_family": true }, { "answer_id": "ACC-603-004", "score": 0.47692227363586426, "sibling_score": 0.47692227363586426, "answer_score": null, "sibling_qid": "CHE-2026-05-0592-Q005", "sibling_text": "lambda controller", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "The lambda controller — where it is, what it controls, and how it works", "cross_family": false }, { "answer_id": "LWL-001", "score": 0.4690406322479248, "sibling_score": 0.4690406322479248, "answer_score": null, "sibling_qid": "KOL-2025-11-2910-Q003", "sibling_text": "3 elements controller", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Explain three-element boiler water level control — the three elements, how it removes swell and shrinkage, and how the PID works", "cross_family": false } ] }, { "qid": "MUM-2026-06-3662-Q021", "text": "TC construction ?", "family": "Electrical - Motors & Starters", "subtopic": "Induction Motor (General / Working)", "tid": "MUM-2026-06-3662", "tray": "new", "candidates": [ { "answer_id": "TCS-059-P04-023", "score": 0.48341241478919983, "sibling_score": 0.48341241478919983, "answer_score": null, "sibling_qid": "KOL-2025-07-2002-Q003", "sibling_text": "developments of tc", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Recent turbocharging developments / latest engine developments", "cross_family": true }, { "answer_id": "TC-CONST-005", "score": 0.4700612425804138, "sibling_score": 0.4700612425804138, "answer_score": null, "sibling_qid": "MUM-2026-03-1300-Q001S2", "sibling_text": "t c compressor side construction", "sibling_family": "", "via": "sibling", "answer_title": "Compressor/blower side components and air flow", "cross_family": false }, { "answer_id": "TC-OVHL-001", "score": 0.4618892967700958, "sibling_score": 0.4618892967700958, "answer_score": null, "sibling_qid": "MUM-2026-03-2638-Q006", "sibling_text": "after overhaul things to check in tc", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Main-engine turbocharger overhaul — procedure and post-overhaul checks", "cross_family": true } ] }, { "qid": "MUM-2026-06-3662-Q022", "text": "Compressor side - ?", "family": "Pumps - Centrifugal & PD", "subtopic": "Centrifugal Pump", "tid": "MUM-2026-06-3662", "tray": "new", "candidates": [ { "answer_id": "CAP-CTRL-002", "score": 0.6129398941993713, "sibling_score": 0.6129398941993713, "answer_score": null, "sibling_qid": "KOC-2025-12-1985-Q003", "sibling_text": "unloader in refer compressor", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "CG-002 · How the cylinder-unloader mechanism works", "cross_family": true }, { "answer_id": "AC-VE-005", "score": 0.611137330532074, "sibling_score": 0.611137330532074, "answer_score": null, "sibling_qid": "KOC-2026-01-1993-Q030", "sibling_text": "what happens if less and more to compressor", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "If bumping clearance is more or less, what happens, and how do you reduce or adjust it?", "cross_family": true }, { "answer_id": "UNL-330-002", "score": 0.6044694185256958, "sibling_score": 0.6044694185256958, "answer_score": 0.3896856069564819, "sibling_qid": "KOL-2021-01-1571-Q005", "sibling_text": "compressor loader and unloader", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Explain the working of the main air compressor unloader.", "cross_family": true } ] }, { "qid": "MUM-2026-06-3663-Q001", "text": "Type of ship sailed?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-06-3663", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8460181951522827, "sibling_score": 0.8460181951522827, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8450309634208679, "sibling_score": 0.8450309634208679, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7928885817527771, "sibling_score": 0.7928885817527771, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "MUM-2026-06-3663-Q002", "text": "Constructional Difference between Aux Engine and Main Engine?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Galvanometer / Multimeter / Clamp Meter", "tid": "MUM-2026-06-3663", "tray": "new", "candidates": [ { "answer_id": "AEME-DIFF-001", "score": 0.5566275119781494, "sibling_score": 0.5566275119781494, "answer_score": 0.5319243371486664, "sibling_qid": "MUM-2026-03-2642-Q012", "sibling_text": "type of main and aux engine", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": true }, { "answer_id": "EMD-MEAE-001", "score": 0.5412772297859192, "sibling_score": 0.5412772297859192, "answer_score": null, "sibling_qid": "MUM-2026-03-1294-Q007", "sibling_text": "what is the difference in the foundation of main engine and auxiliary engine both are fitted to the ship s hull what is the difference in their foundation", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "1. ME vs AE foundation — rigid chocking against resilient mounting", "cross_family": true }, { "answer_id": "FP-OVHL-001", "score": 0.5260239243507385, "sibling_score": 0.5260239243507385, "answer_score": null, "sibling_qid": "MUM-2025-12-1227-Q004", "sibling_text": "diff btw fuel pump of me and aux engine", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Aux-engine / Bosch jerk fuel pump — overhaul, checks, boxing up", "cross_family": true } ] }, { "qid": "MUM-2026-06-3663-Q003", "text": "How is crankshaft driven in 4 Stroke engine?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE vs ME Differences", "tid": "MUM-2026-06-3663", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-004", "score": 0.6812936663627625, "sibling_score": 0.6812936663627625, "answer_score": null, "sibling_qid": "CHE-2026-05-0548-Q008", "sibling_text": "connecting rod 4s engine explain full", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE connecting-rod inspection — ovality, trueness, serrations, action if out of limit", "cross_family": false }, { "answer_id": "CHAIN-TENS-B-003", "score": 0.647653341293335, "sibling_score": 0.647653341293335, "answer_score": null, "sibling_qid": "KOL-2021-08-3445-Q002", "sibling_text": "chain drive b w camshaft crankshaft what s u have checked", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Chain-drive arrangement — sprockets, idlers, links and chain case", "cross_family": true }, { "answer_id": "AE-CSB-346-001", "score": 0.6459618210792542, "sibling_score": 0.6459618210792542, "answer_score": null, "sibling_qid": "KOL-2022-05-1687-Q003", "sibling_text": "4 stroke propulsion engine thrust block arrangements", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Thrust bearing in an auxiliary / generator engine — purpose and location", "cross_family": false } ] }, { "qid": "MUM-2026-06-3663-Q005", "text": "Type of CAM profile in 2 stroke engine engine fuel pump(what is the benefit of it?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Cam & Lead", "tid": "MUM-2026-06-3663", "tray": "review", "candidates": [ { "answer_id": "FCAM-LEAD-P04-001", "score": 0.669305145740509, "sibling_score": 0.669305145740509, "answer_score": 0.49085396230220796, "sibling_qid": "KOL-2023-01-3591-Q008", "sibling_text": "what type of fuel cam used in fuel pump", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel cam lead, cam profile, negative cam and cam slip", "cross_family": false }, { "answer_id": "CAM-437-004", "score": 0.6624101400375366, "sibling_score": 0.6624101400375366, "answer_score": 0.568932831287384, "sibling_qid": "MUM-2026-06-3649-Q004", "sibling_text": "type of cam for fuel pump exh valve", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Type of cam used for the fuel pump and the exhaust valve", "cross_family": false }, { "answer_id": "CAM-437-005", "score": 0.6407460570335388, "sibling_score": 0.6407460570335388, "answer_score": null, "sibling_qid": "KOC-2021-12-0947-Q002", "sibling_text": "reason for reversing fuel pump fuel cam is not symmetric with tdc of the piston", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Why the fuel cam is not symmetrical with TDC — and what that means for reversing", "cross_family": false } ] }, { "qid": "MUM-2026-06-3664-Q001", "text": "Type of ship sailed ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-06-3664", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8460181951522827, "sibling_score": 0.8460181951522827, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8450309634208679, "sibling_score": 0.8450309634208679, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7928885817527771, "sibling_score": 0.7928885817527771, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "MUM-2026-06-3664-Q003", "text": "How to strengthen your ship ?", "family": "Ship Construction & Stability", "subtopic": "DEFINITION", "tid": "MUM-2026-06-3664", "tray": "new", "candidates": [ { "answer_id": "KGF-A-005", "score": 0.5906150341033936, "sibling_score": 0.5906150341033936, "answer_score": null, "sibling_qid": "KOC-2025-02-0532-Q001", "sibling_text": "construction of ur last vessel in terms of strengthening", "sibling_family": "", "via": "sibling", "answer_title": "Strengthening members & longitudinal / transverse strength", "cross_family": false }, { "answer_id": "STF-TND-P03-001", "score": 0.5392065048217773, "sibling_score": 0.5392065048217773, "answer_score": null, "sibling_qid": "KOL-2021-08-0540-Q005", "sibling_text": "how to make stiff ship tender", "sibling_family": "", "via": "sibling", "answer_title": "Stiff and tender ships — what they are and how GM drives behaviour", "cross_family": false }, { "answer_id": "DAM-STAB-P03-002", "score": 0.5337814688682556, "sibling_score": 0.5337814688682556, "answer_score": null, "sibling_qid": "KOL-2026-07-4264-Q005", "sibling_text": "damage stability criteria for your ship", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "General cargo-ship damage stability criteria and requirements", "cross_family": false } ] }, { "qid": "MUM-2026-06-3664-Q005", "text": "How to calculate COG from GM?", "family": "Ship Construction & Stability", "subtopic": "Stability Curves (GZ / KN)", "tid": "MUM-2026-06-3664", "tray": "new", "candidates": [ { "answer_id": "GM-META-002", "score": 0.5191576480865479, "sibling_score": 0.5191576480865479, "answer_score": null, "sibling_qid": "MUM-2024-08-0190-Q002", "sibling_text": "gm calculation centre of gravity", "sibling_family": "", "via": "sibling", "answer_title": "How loading, discharge, ballast and lifts move G and GM", "cross_family": false }, { "answer_id": "STAB-GZ-P01-001", "score": 0.5010673999786377, "sibling_score": 0.5010673999786377, "answer_score": null, "sibling_qid": "KOL-2025-07-0979-Q005", "sibling_text": "gz curve how to calculate gm", "sibling_family": "", "via": "sibling", "answer_title": "Draw and explain the statical stability (GZ) curve", "cross_family": false }, { "answer_id": "INCL-EXP-D-001", "score": 0.4386292099952698, "sibling_score": 0.4386292099952698, "answer_score": 0.37977358549833296, "sibling_qid": "KOL-2023-03-0727-Q001", "sibling_text": "inclining experiment purpose and calculation of gm with formula", "sibling_family": "", "via": "sibling", "answer_title": "Finding GM — then KG and the centre of gravity", "cross_family": false } ] }, { "qid": "MUM-2026-06-3664-Q006", "text": "Mlc and its components (their function too each)?", "family": "IMO Structure & Conventions", "subtopic": "IMO / Committees / Codes", "tid": "MUM-2026-06-3664", "tray": "new", "candidates": [ { "answer_id": "IMO-CC-P01-003", "score": 0.5498549938201904, "sibling_score": 0.5498549938201904, "answer_score": null, "sibling_qid": "KOC-2025-11-0700-Q005", "sibling_text": "msc how it functions", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Name the IMO Committees and Sub-Committees (MSC, MEPC, FAL …) and state their functions.", "cross_family": false }, { "answer_id": "ISMNC-002", "score": 0.531920313835144, "sibling_score": 0.531920313835144, "answer_score": null, "sibling_qid": "MUM-2026-01-0685-Q005", "sibling_text": "mlc mnc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a major non-conformity under the ISM Code? Give the definition and name some.", "cross_family": true }, { "answer_id": "CLC-CIV-B-003", "score": 0.4659956097602844, "sibling_score": 0.4659956097602844, "answer_score": null, "sibling_qid": "KOL-2025-09-1083-Q004", "sibling_text": "llmc", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "LLMC: purpose, scope and limitation of maritime claims", "cross_family": true } ] }, { "qid": "MUM-2026-06-3665-Q003", "text": "SCR and how it overcome NOX?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "NOx Limits / Tier", "tid": "MUM-2026-06-3665", "tray": "new", "candidates": [ { "answer_id": "A6-NSEC-002", "score": 0.5000431537628174, "sibling_score": 0.5000431537628174, "answer_score": null, "sibling_qid": "KOC-2025-03-0559-Q005", "sibling_text": "nox technical file x scr working", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "NOx Technical Code vs NOx Technical File", "cross_family": false }, { "answer_id": "AV6-P03-02", "score": 0.4544408917427063, "sibling_score": 0.4544408917427063, "answer_score": 0.3742198795080185, "sibling_qid": "MUM-2026-09-3912-Q007", "sibling_text": "scr and its chemical reaction gave all answers", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SCR for marine NOx control — meaning, working principle, chemistry and system components", "cross_family": false }, { "answer_id": "AV6-P03-04", "score": 0.41094160079956055, "sibling_score": 0.41094160079956055, "answer_score": null, "sibling_qid": "KOL-2023-12-1769-Q004", "sibling_text": "secondary method of nox reduction scr working by product hp lp scr", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "HP SCR versus LP SCR — pre-turbine and post-turbine arrangements", "cross_family": false } ] }, { "qid": "MUM-2026-06-3665-Q005", "text": "Type of vibration ? Which type is more dangerous ? How to overcome ?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Vibration / Balancing", "tid": "MUM-2026-06-3665", "tray": "review", "candidates": [ { "answer_id": "VIB-BAL-A-001", "score": 0.6848304867744446, "sibling_score": 0.6848304867744446, "answer_score": 0.46231420040130616, "sibling_qid": "KOL-2024-12-1961-Q006", "sibling_text": "types of vibration how to prevent it", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "VIB-A-01 — Engine vibration — what it is, its types and causes, and how it is controlled", "cross_family": false }, { "answer_id": "VIB-BAL-A-003", "score": 0.6067075133323669, "sibling_score": 0.6067075133323669, "answer_score": 0.4003777772188187, "sibling_qid": "CHE-2025-08-0201-Q008", "sibling_text": "out of vertical and horizontal vibrations which one difficult to handle and why", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "VIB-A-03 — Transverse, longitudinal and lateral engine vibration, and how each is controlled (top bracing)", "cross_family": false }, { "answer_id": "VIB-BAL-C-FINAL-1-001", "score": 0.6024419665336609, "sibling_score": 0.6024419665336609, "answer_score": null, "sibling_qid": "CHE-2026-05-0559-Q001", "sibling_text": "types of vibrations first nd second order vibrations", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "First- & Second-Order External Moments, Guide-Force Moments & Moment Compensators", "cross_family": false } ] }, { "qid": "MUM-2026-06-3666-Q001", "text": "Engine Room crane Safeties ?", "family": "Electrical - Motors & Starters", "subtopic": "Windlass / Crane Motor", "tid": "MUM-2026-06-3666", "tray": "review", "candidates": [ { "answer_id": "WCM-P02-001", "score": 0.8131341338157654, "sibling_score": 0.8131341338157654, "answer_score": 0.5420578360557556, "sibling_qid": "MUM-2026-09-3921-Q003", "sibling_text": "engine room crane safeties", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Safeties and trips on ship's cranes (deck, cargo, provision, engine-room)", "cross_family": false }, { "answer_id": "ERC-345-001", "score": 0.7631414532661438, "sibling_score": 0.7631414532661438, "answer_score": null, "sibling_qid": "KOL-2018-04-1363-Q010", "sibling_text": "engine room crane safeties", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Safeties and protective devices", "cross_family": true }, { "answer_id": "CRANE-ER-001", "score": 0.7592064142227173, "sibling_score": 0.7592064142227173, "answer_score": null, "sibling_qid": "KOC-2025-09-1943-Q008", "sibling_text": "safeties in engine room crane", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Pre-use safety, maintenance & certification checks on the ER crane", "cross_family": true } ] }, { "qid": "MUM-2026-06-3666-Q005", "text": "Emergency Battery Specifications ?", "family": "Electrical - Batteries & DC Systems", "subtopic": "Emergency Battery / SOLAS", "tid": "MUM-2026-06-3666", "tray": "review", "candidates": [ { "answer_id": "EDG-P01-001", "score": 0.8129170536994934, "sibling_score": 0.8129170536994934, "answer_score": null, "sibling_qid": "KOL-2026-03-2978-Q005", "sibling_text": "emergency battery requirements", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "Emergency source of power — the SOLAS requirements", "cross_family": false }, { "answer_id": "bdc-p05-01", "score": 0.8120836615562439, "sibling_score": 0.8120836615562439, "answer_score": 0.592939081788063, "sibling_qid": "MUM-2023-07-1395-Q004", "sibling_text": "emergency battery capacity", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "CQ-BDC-022 Emergency battery on your ship — purpose, type, arrangement and rating Medium", "cross_family": false }, { "answer_id": "EMG-DG-P02-FINAL-2-001", "score": 0.7837510704994202, "sibling_score": 0.7837510704994202, "answer_score": null, "sibling_qid": "KOL-2022-12-2632-Q002", "sibling_text": "emergency battery load", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "Emergency generator loads and duration of emergency supply", "cross_family": false } ] }, { "qid": "MUM-2026-06-3667-Q001", "text": "Status of other functions Type of ship ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-06-3667", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.7625560760498047, "sibling_score": 0.7625560760498047, "answer_score": null, "sibling_qid": "MUM-2026-06-3459-Q001", "sibling_text": "type of ship sail and status of other function", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.7087334990501404, "sibling_score": 0.7087334990501404, "answer_score": null, "sibling_qid": "MUM-2026-03-0813-Q001", "sibling_text": "type of ship why only one function", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.6094444990158081, "sibling_score": 0.6094444990158081, "answer_score": 0.405573795735836, "sibling_qid": "CHE-2026-05-0614-Q001", "sibling_text": "start from type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "MUM-2026-06-3667-Q005", "text": "on which ship it is occurred? Why?", "family": "Ship Construction & Stability", "subtopic": "Parametric / Synchronous Rolling", "tid": "MUM-2026-06-3667", "tray": "new", "candidates": [ { "answer_id": "AEOVT-559-004", "score": 0.5693517327308655, "sibling_score": 0.5693517327308655, "answer_score": null, "sibling_qid": "MUM-2025-12-1803-Q004", "sibling_text": "ship in narrow passage one generator tripped on overspeed", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "One generator trips on overspeed in a narrow passage — action and checks", "cross_family": true }, { "answer_id": "VAC-COND-003", "score": 0.5498031973838806, "sibling_score": 0.5498031973838806, "answer_score": null, "sibling_qid": "MUM-2022-10-2698-Q007", "sibling_text": "have you seen a breakdown on ship i said bellow on the vac cond had ruptured while cargo disch he said any other", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Vacuum condenser failure during cargo discharge — emergency action and vacuum drop", "cross_family": true }, { "answer_id": "ANCH-C-006", "score": 0.5469775795936584, "sibling_score": 0.5469775795936584, "answer_score": null, "sibling_qid": "CHE-2026-02-0478-Q004", "sibling_text": "this type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": true } ] }, { "qid": "MUM-2026-06-3667-Q010", "text": "How to measure ? And unit ?", "family": "Ship Construction & Stability", "subtopic": "Static / Dynamic Stability/damage stability", "tid": "MUM-2026-06-3667", "tray": "new", "candidates": [ { "answer_id": "FCL-P02-001", "score": 0.6198611855506897, "sibling_score": 0.6198611855506897, "answer_score": null, "sibling_qid": "MUM-2026-02-1254-Q004", "sibling_text": "how to measure", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel pump / injection timing check, setting, and adjustment", "cross_family": true }, { "answer_id": "CII-CALC-P03-001", "score": 0.5776209831237793, "sibling_score": 0.5776209831237793, "answer_score": null, "sibling_qid": "MUM-2026-05-3158-Q004S2", "sibling_text": "what measurements", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Calculating attained & required CII — formula, unit, reduction factor, measurements", "cross_family": true }, { "answer_id": "SEEMP-123-B-002", "score": 0.5643131732940674, "sibling_score": 0.5643131732940674, "answer_score": null, "sibling_qid": "KOL-2018-06-1385-Q001", "sibling_text": "seemp measures", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP in practice — implementation and energy-efficiency measures", "cross_family": true } ] }, { "qid": "MUM-2026-07-3668-Q001", "text": "Static balance ?", "family": "Ship Construction & Stability", "subtopic": "Static / Dynamic Stability/damage stability", "tid": "MUM-2026-07-3668", "tray": "review", "candidates": [ { "answer_id": "VIB-BAL-C-FINAL-1-003", "score": 0.8806064128875732, "sibling_score": 0.8806064128875732, "answer_score": 0.41391528546810147, "sibling_qid": "MUM-2026-03-2638-Q014S2", "sibling_text": "static balance", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Static and Dynamic Balancing of the Crankshaft / Shaft", "cross_family": false }, { "answer_id": "TC-CS-P01-008", "score": 0.6891136169433594, "sibling_score": 0.6891136169433594, "answer_score": null, "sibling_qid": "MUM-2026-06-3621-Q008", "sibling_text": "static dynamic balancing", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "H·Static and dynamic balancing of the turbocharger rotor", "cross_family": true }, { "answer_id": "LB-SDT-A-001", "score": 0.6429302096366882, "sibling_score": 0.6429302096366882, "answer_score": null, "sibling_qid": "MUM-2026-02-2928-Q002", "sibling_text": "static and dynamic balance", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat static and dynamic test — purpose and procedure", "cross_family": true } ] }, { "qid": "MUM-2026-07-3668-Q008", "text": "There is hole in bilge line how will you find ?", "family": "Pumps - Centrifugal & PD", "subtopic": "Bilge Line / Pump", "tid": "MUM-2026-07-3668", "tray": "review", "candidates": [ { "answer_id": "PHL-001", "score": 0.8034581542015076, "sibling_score": 0.8034581542015076, "answer_score": 0.5585704326629638, "sibling_qid": "MUM-2026-03-2639-Q001", "sibling_text": "there is hole in bilge line how will you find", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "There is a hole in a line — bilge suction main, sea-water line, starting-air line or steam line: your action as 2/E, and how you find the exact location", "cross_family": false }, { "answer_id": "CEM-BOX-002", "score": 0.537895792722702, "sibling_score": null, "answer_score": 0.537895792722702, "sibling_qid": "", "sibling_text": "hole or leak in the sea chest seawater line how do you approach it inform the chief engineer and bridge at once treat it as flooding first a repair job second compare the rate of ingress with bilge and gs pumping capacity watch free surface in the space", "sibling_family": "", "via": "answer_title", "answer_title": "Hole or leak in the sea chest / seawater line—how do you approach it?", "cross_family": false }, { "answer_id": "HULL-DD-003", "score": 0.4953883856534958, "sibling_score": null, "answer_score": 0.4953883856534958, "sibling_qid": "", "sibling_text": "3 side shell hole or hull breach at the waterline emergency action and repair flooding and watertight integrity are the immediate danger raise the alarm account for people close watertight boundaries identify and isolate the flooded compartment run bilge emergency bilge to control the level check adjacent spaces", "sibling_family": "", "via": "answer_title", "answer_title": "3. Side-shell hole or hull breach at the waterline: emergency action and repair", "cross_family": false } ] }, { "qid": "MUM-2026-07-3669-Q003", "text": " How to rectify ?", "family": "NDT & Material Testing", "subtopic": "Stainless / Gun Metal / Brass", "tid": "MUM-2026-07-3669", "tray": "new", "candidates": [ { "answer_id": "SGB-212-001", "score": 0.6225983500480652, "sibling_score": 0.6225983500480652, "answer_score": null, "sibling_qid": "KOL-2022-10-1926-Q010", "sibling_text": "and how to rectify", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Dezincification of brass", "cross_family": false }, { "answer_id": "SHAFT-ALN-002", "score": 0.5692716836929321, "sibling_score": 0.5692716836929321, "answer_score": null, "sibling_qid": "KOL-2024-02-3674-Q002", "sibling_text": "offset how to correct", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Fair-curve alignment, influence numbers and propeller overhang", "cross_family": true }, { "answer_id": "LOLL-P02-002", "score": 0.519524335861206, "sibling_score": 0.519524335861206, "answer_score": null, "sibling_qid": "MUM-2023-03-0090-Q008", "sibling_text": "angle lol how to correct", "sibling_family": "", "via": "sibling", "answer_title": "1. Correcting angle of loll — the ballasting sequence", "cross_family": false } ] }, { "qid": "MUM-2026-07-3669-Q007", "text": "2nd order moment explain full?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Moments", "tid": "MUM-2026-07-3669", "tray": "review", "candidates": [ { "answer_id": "VIB-BAL-C-FINAL-1-001", "score": 0.7291499376296997, "sibling_score": 0.7291499376296997, "answer_score": 0.4177293688058853, "sibling_qid": "MUM-2026-06-3618-Q002", "sibling_text": "2nd order moment explain full", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "First- & Second-Order External Moments, Guide-Force Moments & Moment Compensators", "cross_family": false }, { "answer_id": "ETP-344-P03-009", "score": 0.34871106296777726, "sibling_score": null, "answer_score": 0.34871106296777726, "sibling_qid": "", "sibling_text": "moment compensator second order moment and counter rotating arrangement external unbalanced moments from the reciprocating rotating masses make the engine rock and can set up hull girder vibration if resonant first order moment acts in both vertical and horizontal planes at crank speed once per rev significant mainly on four cylinder engines", "sibling_family": "", "via": "answer_title", "answer_title": "Moment compensator, second-order moment and counter-rotating arrangement", "cross_family": false }, { "answer_id": "STRSTR-298-007", "score": 0.33186735212802887, "sibling_score": null, "answer_score": 0.33186735212802887, "sibling_qid": "", "sibling_text": "what are moments and moment of inertia and what are the types of moment of inertia moment turning effect force perpendicular distance n m a bending moment bends a beam shaft moment of inertia distribution of area or mass about an axis resists bending or rotation", "sibling_family": "", "via": "answer_title", "answer_title": "What are moments and moment of inertia, and what are the types of moment of inertia?", "cross_family": false } ] }, { "qid": "MUM-2026-07-3670-Q002", "text": " Reasons and rectification?", "family": "Pumps - Centrifugal & PD", "subtopic": "Pump Priming / Suction", "tid": "MUM-2026-07-3670", "tray": "new", "candidates": [ { "answer_id": "SGB-212-001", "score": 0.5477502346038818, "sibling_score": 0.5477502346038818, "answer_score": null, "sibling_qid": "KOL-2022-10-1926-Q010", "sibling_text": "and how to rectify", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Dezincification of brass", "cross_family": true }, { "answer_id": "CYL-LINER-P02-004", "score": 0.5248452425003052, "sibling_score": 0.5248452425003052, "answer_score": null, "sibling_qid": "KOL-2026-02-3912-Q001", "sibling_text": "liner ovality reason rectify", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L4 · T044-PART_02-G004High", "cross_family": true }, { "answer_id": "CLVR-WEAR-001", "score": 0.5158621072769165, "sibling_score": 0.5158621072769165, "answer_score": null, "sibling_qid": "KOC-2025-06-1039-Q010", "sibling_text": "what is clover leafing reason rectification", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Cloverleaf wear — what it is, where, why, and how to reduce or rectify it", "cross_family": true } ] }, { "qid": "MUM-2026-07-3670-Q005", "text": "Repairs on rudder?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "MUM-2026-07-3670", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.7484914660453796, "sibling_score": 0.7484914660453796, "answer_score": null, "sibling_qid": "MUM-2026-06-3598-Q004", "sibling_text": "repair of breached rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "PRE-TEN-001", "score": 0.6555237174034119, "sibling_score": 0.6555237174034119, "answer_score": null, "sibling_qid": "MUM-2026-09-3907-Q001", "sibling_text": "rudder carrier bearing replacement in port", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Pre-stressing and pre-tensioning in main-engine bolting", "cross_family": false }, { "answer_id": "WBS-C-006", "score": 0.536048737168312, "sibling_score": null, "answer_score": 0.536048737168312, "sibling_qid": "", "sibling_text": "propeller and rudder repair grading the damage and the class approved route grade the damage first minor nicks erosion bent tip vs crack major minor grind and blend out the notch restore a fair section keep balance small cold repair epoxy fillers for minor surface defects only", "sibling_family": "", "via": "answer_title", "answer_title": "Propeller and rudder repair — grading the damage and the Class-approved route", "cross_family": false } ] }, { "qid": "MUM-2026-07-3671-Q002", "text": "What all is controlled electronically on ME engines ?", "family": "2-Stroke - ME-C / Electronic Engine", "subtopic": "Electronically Controlled Engine", "tid": "MUM-2026-07-3671", "tray": "review", "candidates": [ { "answer_id": "PID-CTRL-005", "score": 0.666657567024231, "sibling_score": 0.666657567024231, "answer_score": null, "sibling_qid": "MUM-2026-03-1306-Q017", "sibling_text": "what is electronically controlled", "sibling_family": "2-Stroke - ME-C / Electronic Engine", "via": "sibling", "answer_title": "Open-loop, closed-loop, cascade and other control types onboard", "cross_family": false }, { "answer_id": "EGTP-P02-005", "score": 0.6519342660903931, "sibling_score": 0.6519342660903931, "answer_score": null, "sibling_qid": "CHE-2026-05-0541-Q001", "sibling_text": "type of engine spec explain what is me c how and what is electronically controlled explain", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "MC / MC-C / ME-C and Electronically Controlled Engines", "cross_family": true }, { "answer_id": "GOV-P02-001", "score": 0.644778311252594, "sibling_score": 0.644778311252594, "answer_score": null, "sibling_qid": "KOC-2025-01-1478-Q002", "sibling_text": "main engine electronic governer", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Electronic governor — draw, block diagram & working", "cross_family": true } ] }, { "qid": "MUM-2026-07-3671-Q005", "text": "Blowback?", "family": "Boilers - Operations & Firing", "subtopic": "Burner Type (Rotary Cup / Pressure Jet)", "tid": "MUM-2026-07-3671", "tray": "new", "candidates": [ { "answer_id": "BBF-621-001", "score": 0.5913704633712769, "sibling_score": 0.5913704633712769, "answer_score": 0.3553833276033401, "sibling_qid": "MUM-2024-07-2767-Q014", "sibling_text": "bolier what is blow back reasons", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "What is boiler backfire / blowback? Explain the furnace event, the reasons, and how you prevent it.", "cross_family": false }, { "answer_id": "BBF-621-002", "score": 0.5250138640403748, "sibling_score": 0.5250138640403748, "answer_score": null, "sibling_qid": "KOC-2025-12-1081-Q004", "sibling_text": "back fire reasons and causes actions as 2e", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Backfire has occurred on the oil-fired boiler. What are your actions as 2/E, and what instructions do you give the junior engineer or watchkeeper?", "cross_family": false }, { "answer_id": "BFS-257-006", "score": 0.5220483541488647, "sibling_score": 0.5220483541488647, "answer_score": 0.35997986495494844, "sibling_qid": "CHE-2026-02-0483-Q001", "sibling_text": "boiler blow back", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler backfire / blowback / panting — causes, prevention, actions", "cross_family": false } ] }, { "qid": "MUM-2026-07-3672-Q002", "text": "Shore power supply?", "family": "Electrical - Protection & Relays", "subtopic": "Protection / Relays", "tid": "MUM-2026-07-3672", "tray": "review", "candidates": [ { "answer_id": "SHORE-CONN-P03-002", "score": 0.7809962034225464, "sibling_score": 0.7809962034225464, "answer_score": null, "sibling_qid": "MUM-2026-09-3873-Q011", "sibling_text": "shore power with safety", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Precautions, safeties and earthing before connecting shore supply", "cross_family": false }, { "answer_id": "SHORE-CONN-P03-001", "score": 0.7765927910804749, "sibling_score": 0.7765927910804749, "answer_score": 0.5191366553306579, "sibling_qid": "MUM-2026-08-3855-Q017", "sibling_text": "shore power checks", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Taking electrical shore power in dry dock — preparation, checks and procedure", "cross_family": false }, { "answer_id": "SHORE-CONN-P02-002", "score": 0.7698606252670288, "sibling_score": 0.7698606252670288, "answer_score": 0.5379223406314849, "sibling_qid": "KOC-2026-05-0010-Q001", "sibling_text": "shore power supply diagram", "sibling_family": "", "via": "sibling", "answer_title": "The shore connection single-line diagram — and why the transformer", "cross_family": false } ] }, { "qid": "MUM-2026-07-3672-Q003", "text": "Types of Battey and SOLAS Requirement?", "family": "Steering Gear & Hydraulics", "subtopic": "Steering Gear System", "tid": "MUM-2026-07-3672", "tray": "review", "candidates": [ { "answer_id": "EDG-P01-001", "score": 0.6603491902351379, "sibling_score": 0.6603491902351379, "answer_score": null, "sibling_qid": "MUM-2025-11-0569-Q012", "sibling_text": "bhai wat are solas requirements for battery in terms of power supply", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "Emergency source of power — the SOLAS requirements", "cross_family": true }, { "answer_id": "CSD-BF036-006", "score": 0.6369756460189819, "sibling_score": 0.6369756460189819, "answer_score": null, "sibling_qid": "MUM-2026-06-3371-Q003", "sibling_text": "battery solas requirement 200amp hr required available 100amp hr how will you connect", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "Explain crankshaft deflection.", "cross_family": true }, { "answer_id": "bdc-p05-03", "score": 0.6195517778396606, "sibling_score": 0.6195517778396606, "answer_score": null, "sibling_qid": "KOL-2025-09-2852-Q005", "sibling_text": "batteries requirements solas requirements gmdss battery requirement", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "CQ-BDC-025 GMDSS reserve battery — requirement, supply, voltage and equipment Medium", "cross_family": true } ] }, { "qid": "MUM-2026-07-3673-Q002", "text": "significant of spot test?", "family": "Lube Oil System", "subtopic": "", "tid": "MUM-2026-07-3673", "tray": "new", "candidates": [ { "answer_id": "PI-211-002", "score": 0.48470833897590637, "sibling_score": 0.48470833897590637, "answer_score": null, "sibling_qid": "MUM-2026-05-3004-Q008", "sibling_text": "what is pi test and significance", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "How the PI test is carried out — equipment, procedure, leakage-current behaviour", "cross_family": true }, { "answer_id": "TON-REF-002", "score": 0.46376901865005493, "sibling_score": 0.46376901865005493, "answer_score": null, "sibling_qid": "MUM-2024-07-1084-Q008", "sibling_text": "significance", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "What is the significance of a refrigeration plant's tonnage / capacity rating?", "cross_family": true }, { "answer_id": "RMS-VAL-001", "score": 0.44122081995010376, "sibling_score": 0.44122081995010376, "answer_score": null, "sibling_qid": "CHE-2026-05-0565-Q016", "sibling_text": "rms value and significance", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "RMS value and its significance", "cross_family": true } ] }, { "qid": "MUM-2026-07-3673-Q004", "text": "how will you check the trueness of Connecting rod ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Connecting Rod & Bolts", "tid": "MUM-2026-07-3673", "tray": "review", "candidates": [ { "answer_id": "CRB-001", "score": 0.7890051007270813, "sibling_score": 0.7890051007270813, "answer_score": 0.5489681452512741, "sibling_qid": "KOL-2022-01-3512-Q004", "sibling_text": "connecting rod trueness how to check", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What checks are carried out on the connecting rod at decarbonisation? Explain the ovality and trueness checks — how many readings, at which positions, with what instrument, and the permissible limit.", "cross_family": false }, { "answer_id": "AECR-651-001", "score": 0.7615123987197876, "sibling_score": 0.7615123987197876, "answer_score": 0.5730644762516022, "sibling_qid": "KOL-2022-10-3579-Q003", "sibling_text": "ae connecting rod inspection trueness check", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What checks do you carry out on the connecting rod of an AE / DG — inspection, overhaul checks and the trueness check?", "cross_family": false }, { "answer_id": "AECR-651-002", "score": 0.7320453524589539, "sibling_score": 0.7320453524589539, "answer_score": null, "sibling_qid": "MUM-2026-04-2961-Q012", "sibling_text": "connecting rod checks connecting rod ovality", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you take the ovality of the AE big end in a 4-stroke, and what are the ovality limits and maximum value?", "cross_family": false } ] }, { "qid": "MUM-2026-07-3673-Q006", "text": "your both circulating pumps are damage how will.you proceed to port ?", "family": "Boilers - Operations & Firing", "subtopic": "Circulating Pump", "tid": "MUM-2026-07-3673", "tray": "new", "candidates": [ { "answer_id": "BWM-D1D2-P02-001", "score": 0.6402175426483154, "sibling_score": 0.6402175426483154, "answer_score": null, "sibling_qid": "KOL-2022-07-4010-Q006", "sibling_text": "ballast water exchange need to be carried out both pump failed due to lack of spare what to do", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Regulation D-1 — ballast water exchange standard and the accepted methods", "cross_family": true }, { "answer_id": "OWS-ORB-005", "score": 0.6101367473602295, "sibling_score": 0.6101367473602295, "answer_score": null, "sibling_qid": "MUM-2026-03-2628-Q006", "sibling_text": "ows pump not failed no spares onboard can we use centrifugal pump", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "5. Oily bilge pump broken — can a centrifugal pump be used for the OWS?", "cross_family": true }, { "answer_id": "CRKPIN-P02-003", "score": 0.6027059555053711, "sibling_score": 0.6027059555053711, "answer_score": null, "sibling_qid": "KOL-2022-07-3545-Q005", "sibling_text": "on unit crankpin bearing damage beyond repair no bearing onboard how to reach port", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankpin or bearing beyond repair / no spare — casualty action", "cross_family": true } ] }, { "qid": "MUM-2026-07-3674-Q001", "text": "1st order &2nd order forces, how to tackle?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Vibration / Balancing", "tid": "MUM-2026-07-3674", "tray": "new", "candidates": [ { "answer_id": "VIB-BAL-C-FINAL-1-001", "score": 0.5875300765037537, "sibling_score": 0.5875300765037537, "answer_score": 0.4170909270644188, "sibling_qid": "MUM-2024-10-0963-Q007", "sibling_text": "explain first order and second order forces and how to prevent them", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "First- & Second-Order External Moments, Guide-Force Moments & Moment Compensators", "cross_family": false }, { "answer_id": "SIMP-RULE-003", "score": 0.27017350792884826, "sibling_score": null, "answer_score": 0.27017350792884826, "sibling_qid": "", "sibling_text": "what is the difference between simpson s first rule and simpson s second rule assumed curve first second degree parabola second third degree cubic multipliers first 1 4 2 4 4 1 second 1 3 3 2 3 3 3 3 1", "sibling_family": "", "via": "answer_title", "answer_title": "What is the difference between Simpson's first rule and Simpson's second rule?", "cross_family": false }, { "answer_id": "SIMP-RULE-002", "score": 0.26026295572519303, "sibling_score": null, "answer_score": 0.26026295572519303, "sibling_qid": "", "sibling_text": "what assumptions are used in simpson s first and second rules curve between ordinates is assumed to be a polynomial integrated exactly first rule second degree parabola y a bx cx squared even spaces odd ordinates", "sibling_family": "", "via": "answer_title", "answer_title": "What assumptions are used in Simpson's first and second rules?", "cross_family": false } ] }, { "qid": "MUM-2026-07-3674-Q002", "text": "Boiler tubes how attached to drum ?", "family": "Boilers - Construction & Components", "subtopic": "Boiler Tubes", "tid": "MUM-2026-07-3674", "tray": "review", "candidates": [ { "answer_id": "BLR-TUBE-P01-003", "score": 0.738679826259613, "sibling_score": 0.738679826259613, "answer_score": null, "sibling_qid": "MUM-2022-04-0938-Q003", "sibling_text": "how tubes are connected to boiler said expanded and welded", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "02. Thermal expansion arrangements for boiler tubes", "cross_family": false }, { "answer_id": "BLR-TUBE-P01-002", "score": 0.6922371983528137, "sibling_score": 0.6922371983528137, "answer_score": null, "sibling_qid": "CHE-2026-05-0614-Q005", "sibling_text": "stay tubes in boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "03. Types, functions and arrangement of boiler tubes", "cross_family": false }, { "answer_id": "BLR-TUBE-P01-001", "score": 0.6910719275474548, "sibling_score": 0.6910719275474548, "answer_score": 0.5870338439941406, "sibling_qid": "KOL-2019-01-3207-Q003", "sibling_text": "how boiler tubes are fitted", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "01. Attaching, fitting and supporting boiler tubes", "cross_family": false } ] }, { "qid": "MUM-2026-07-3674-Q003", "text": "How thermal expansion is catered in tubes?", "family": "Boilers - Construction & Components", "subtopic": "Boiler Tubes", "tid": "MUM-2026-07-3674", "tray": "review", "candidates": [ { "answer_id": "BLR-TUBE-P01-003", "score": 0.6625153422355652, "sibling_score": 0.6625153422355652, "answer_score": 0.5462024509906769, "sibling_qid": "MUM-2022-04-0938-Q004", "sibling_text": "if welded how tube expansion is taken care", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "02. Thermal expansion arrangements for boiler tubes", "cross_family": false }, { "answer_id": "SH-332-002", "score": 0.6384257078170776, "sibling_score": 0.6384257078170776, "answer_score": null, "sibling_qid": "MUM-2024-07-0960-Q007", "sibling_text": "sh tubes expansion arrangement", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Where superheater tubes are fitted; attachment, support and expansion", "cross_family": false }, { "answer_id": "OGEE-RING-001", "score": 0.6160759329795837, "sibling_score": 0.6160759329795837, "answer_score": null, "sibling_qid": "KOL-2025-06-4057-Q003", "sibling_text": "how is thermal expansion in small vertical water tube boiler taken care of ogee ring what are and why are stay tubes provided", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "The ogee ring: what it is, where it sits, its purpose, and how it's formed and connected", "cross_family": false } ] }, { "qid": "MUM-2026-07-3674-Q005", "text": "If we ordered a tool for lathe and oversized tool came how to modify it? ", "family": "Workshop & Welding", "subtopic": "Lathe / Tap & Die", "tid": "MUM-2026-07-3674", "tray": "new", "candidates": [ { "answer_id": "LATHE-TD-002", "score": 0.5601940155029297, "sibling_score": 0.5601940155029297, "answer_score": 0.4516959488391876, "sibling_qid": "KOL-2019-07-3264-Q003", "sibling_text": "how centring of cutting tool of lathe is done", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Lathe tools, tool setting, chucks and tailstock precautions", "cross_family": false }, { "answer_id": "LATHE-TD-003", "score": 0.5195901393890381, "sibling_score": 0.5195901393890381, "answer_score": null, "sibling_qid": "KOC-2025-11-1968-Q010", "sibling_text": "how to cut a thread on lathe how to stop lathe during emergency internal", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Thread cutting — lathe, taps & dies, TPI and tapping-drill size", "cross_family": false }, { "answer_id": "LATHE-TD-004", "score": 0.5176515579223633, "sibling_score": 0.5176515579223633, "answer_score": 0.39640085995197294, "sibling_qid": "MUM-2026-03-2636-Q004", "sibling_text": "what is taper reamer", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Reaming — purpose, use, and identifying reamers", "cross_family": false } ] }, { "qid": "MUM-2026-07-3674-Q006", "text": "Types of coupling used on sea water pumps?", "family": "Pumps - Centrifugal & PD", "subtopic": "Positive Displacement Pump", "tid": "MUM-2026-07-3674", "tray": "new", "candidates": [ { "answer_id": "RGEAR-002", "score": 0.6340629458427429, "sibling_score": 0.6340629458427429, "answer_score": 0.49521273374557495, "sibling_qid": "KOL-2018-04-3134-Q003", "sibling_text": "flexible coupling where used in engine room in hydrophore p p peculiarity as it cuts in cuts of fluctuating torque", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Flexible coupling — types, working, and where it is used in the engine room", "cross_family": true }, { "answer_id": "PCD-P01-02", "score": 0.6245215535163879, "sibling_score": 0.6245215535163879, "answer_score": 0.46315258741378784, "sibling_qid": "KOL-2022-03-1665-Q004", "sibling_text": "turbine pump in main sea water line fns 6", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Types and classification of pumps on board — and which pump for which duty", "cross_family": false }, { "answer_id": "PCD-P05-03", "score": 0.6069877743721008, "sibling_score": 0.6069877743721008, "answer_score": 0.4879456490278244, "sibling_qid": "MUM-2026-02-1259-Q003", "sibling_text": "gear pump types", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Gear pump — construction, working, backlash, tooth profile, safety valve, why not for sea water", "cross_family": false } ] }, { "qid": "MUM-2026-07-3674-Q008", "text": "scavenge fire in a unit what all checks?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Scavenging / Scavenge Fire", "tid": "MUM-2026-07-3674", "tray": "review", "candidates": [ { "answer_id": "SCAV-323-P01-001", "score": 0.6973244547843933, "sibling_score": 0.6973244547843933, "answer_score": 0.33931100070476533, "sibling_qid": "MUM-2026-06-3605-Q006", "sibling_text": "scavenge fire in one unit actions", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Scavenge fire in the main engine — your actions", "cross_family": false }, { "answer_id": "SCAV-323-P01-005", "score": 0.6686964631080627, "sibling_score": 0.6686964631080627, "answer_score": null, "sibling_qid": "MUM-2025-07-1150-Q006", "sibling_text": "scavenge fire checks", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Post-fire checks before restarting and loading", "cross_family": false }, { "answer_id": "SCAV-323-P01-003", "score": 0.6642534732818604, "sibling_score": 0.6642534732818604, "answer_score": null, "sibling_qid": "KOL-2026-04-3946-Q004", "sibling_text": "what you will tell your 4e if there s a scavenge fire in one unit", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "As Second Engineer — instructions to the watchkeeper", "cross_family": false } ] }, { "qid": "MUM-2026-07-3675-Q002", "text": "How does bus bar looks like?", "family": "Electrical - High Voltage", "subtopic": "", "tid": "MUM-2026-07-3675", "tray": "review", "candidates": [ { "answer_id": "MSB-ESB-A-001", "score": 0.6767908930778503, "sibling_score": 0.6767908930778503, "answer_score": 0.4900423765182495, "sibling_qid": "MUM-2026-04-2953-Q002", "sibling_text": "how does bus bar looks like", "sibling_family": "", "via": "sibling", "answer_title": "Busbars: construction, arrangement, connection, checks and rating", "cross_family": false }, { "answer_id": "EPC-P01-06", "score": 0.37482060194015504, "sibling_score": null, "answer_score": 0.37482060194015504, "sibling_qid": "", "sibling_text": "do we produce dc on board sources the 24 12 volt arrangement and where dc is used draw ready block chain asked at sittings 440 v board isolation and protection step down transformer bridge filter regulator 24 v bus battery in float across the bus ripple reduction reservoir capacitor plus choke lc filtering after the bridge filter detail base tc a 008 extended this build ext cq epc 047 section g vo", "sibling_family": "", "via": "answer_title", "answer_title": "Do we produce DC on board? Sources, the 24/12-volt arrangement, and where DC is used", "cross_family": false }, { "answer_id": "ELEC-SURV-007", "score": 0.36847765296697615, "sibling_score": null, "answer_score": 0.36847765296697615, "sibling_qid": "", "sibling_text": "main switchboard survey acb testing dead board working isolate all sources generators shore bus ties lock out tag out prove dead discharge before any panel is opened present clean busbar tightness hot spot thermography check busbar supports insulation for tracking earth bar bonded to frame and hull ct secondaries and instrument cases earthed cable entries sealed fire stop internal wiring secure", "sibling_family": "", "via": "answer_title", "answer_title": "Main switchboard survey & ACB testing", "cross_family": false } ] }, { "qid": "MUM-2026-07-3675-Q006", "text": "PLC battery voltage?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "PLC", "tid": "MUM-2026-07-3675", "tray": "review", "candidates": [ { "answer_id": "BDC-P01-03", "score": 0.8959757685661316, "sibling_score": 0.8959757685661316, "answer_score": null, "sibling_qid": "MUM-2026-04-2953-Q006", "sibling_text": "plc battery voltage", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Nickel-cadmium (alkaline) battery — construction, working and cell data", "cross_family": false }, { "answer_id": "BATT-TYPE-001", "score": 0.766735851764679, "sibling_score": 0.766735851764679, "answer_score": null, "sibling_qid": "MUM-2026-07-3675-Q005", "sibling_text": "type of plc battery", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What type of battery is used onboard, and how do you select one?", "cross_family": false }, { "answer_id": "EPC-P03-002", "score": 0.7346100211143494, "sibling_score": 0.7346100211143494, "answer_score": null, "sibling_qid": "MUM-2026-06-3531-Q010S2", "sibling_text": "plc battery how to change decider ques", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What are the components and parts of a PLC — including the memory types and what data is stored in each?", "cross_family": false } ] }, { "qid": "MUM-2026-07-3675-Q010", "text": "What is I doing?", "family": "Risk & Safety Management", "subtopic": "Risk Assessment / Management", "tid": "MUM-2026-07-3675", "tray": "new", "candidates": [ { "answer_id": "HT-A-001", "score": 0.4645732045173645, "sibling_score": 0.4645732045173645, "answer_score": null, "sibling_qid": "MUM-2026-03-2642-Q018", "sibling_text": "what does it do", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Heat treatment: what it is, the main methods, and why it is done", "cross_family": true }, { "answer_id": "VIB-BAL-A-001", "score": 0.45891615748405457, "sibling_score": 0.45891615748405457, "answer_score": null, "sibling_qid": "KOC-2025-08-2069-Q007", "sibling_text": "what do they do", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "VIB-A-01 — Engine vibration — what it is, its types and causes, and how it is controlled", "cross_family": true }, { "answer_id": "SEEMP-123-B-002", "score": 0.4479709267616272, "sibling_score": 0.4479709267616272, "answer_score": null, "sibling_qid": "KOL-2019-10-0333-Q004", "sibling_text": "eeoi eedi seemp what you do in seemp", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP in practice — implementation and energy-efficiency measures", "cross_family": true } ] }, { "qid": "MUM-2026-07-3676-Q001", "text": "Type of vessel sailed ?", "family": "Cargo Ops - Tankers", "subtopic": "Tanker Type", "tid": "MUM-2026-07-3676", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.792434811592102, "sibling_score": 0.792434811592102, "answer_score": null, "sibling_qid": "CHE-2026-02-0481-Q001", "sibling_text": "type of vessels sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": true }, { "answer_id": "ISM-ELEM-001", "score": 0.7755581736564636, "sibling_score": 0.7755581736564636, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": true }, { "answer_id": "AE-CRP-005", "score": 0.7543817162513733, "sibling_score": 0.7543817162513733, "answer_score": null, "sibling_qid": "CHE-2026-03-0255-Q001", "sibling_text": "type of vessel and engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": true } ] }, { "qid": "MUM-2026-07-3677-Q004", "text": "Can we step up 12 volt DC to 30 volt DC?", "family": "Electrical - Batteries & DC Systems", "subtopic": "Battery", "tid": "MUM-2026-07-3677", "tray": "new", "candidates": [ { "answer_id": "XFMR-THY-D-002", "score": 0.5944037437438965, "sibling_score": 0.5944037437438965, "answer_score": null, "sibling_qid": "MUM-2025-08-1613-Q005", "sibling_text": "dc15v to 30v increase through transformer how", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Why a transformer needs AC and cannot transform DC", "cross_family": true }, { "answer_id": "BDC-P02-04", "score": 0.47804683446884155, "sibling_score": 0.47804683446884155, "answer_score": null, "sibling_qid": "CHE-2026-04-0383-Q015", "sibling_text": "how do get it 24 dc", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "The ship's 24 V DC system — how it is produced, why DC, and what it supplies", "cross_family": false }, { "answer_id": "EPC-P01-07", "score": 0.44698214530944824, "sibling_score": 0.44698214530944824, "answer_score": 0.320093759894371, "sibling_qid": "KOL-2024-03-2701-Q001", "sibling_text": "voltage doubler", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Voltage doubler — construction, working, use in a circuit, and limitations", "cross_family": true } ] }, { "qid": "MUM-2026-07-3677-Q006", "text": "How to calculate losses?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "SFOC", "tid": "MUM-2026-07-3677", "tray": "new", "candidates": [ { "answer_id": "HV-SYS-P02-001", "score": 0.5925424098968506, "sibling_score": 0.5925424098968506, "answer_score": null, "sibling_qid": "CHE-2025-12-0325-Q012", "sibling_text": "3 what are the losses explain", "sibling_family": "", "via": "sibling", "answer_title": "Why high voltage is used onboard ships", "cross_family": false }, { "answer_id": "XFMR-THY-E-001", "score": 0.5330383777618408, "sibling_score": 0.5330383777618408, "answer_score": null, "sibling_qid": "KOL-2018-06-2201-Q005", "sibling_text": "how to measure core losses", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Core / iron loss and eddy-current loss", "cross_family": true }, { "answer_id": "IND-CARD-A-001", "score": 0.5229752659797668, "sibling_score": 0.5229752659797668, "answer_score": null, "sibling_qid": "KOL-2021-12-1912-Q001", "sibling_text": "ind power and brake power calc losses which is more details abt losses", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Reading the power / draw card — what it tells you", "cross_family": false } ] }, { "qid": "MUM-2026-07-3677-Q008", "text": "How much value?", "family": "Electrical - Motors & Starters", "subtopic": "IR Test / Insulation Resistance", "tid": "MUM-2026-07-3677", "tray": "new", "candidates": [ { "answer_id": "IRT-C-006", "score": 0.5078381299972534, "sibling_score": 0.5078381299972534, "answer_score": 0.2931906461715698, "sibling_qid": "KOL-2023-02-2638-Q003", "sibling_text": "it what should be ideal value what will happen if it is less and", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Acceptable IR values, the minimum & \"what if it's low\"", "cross_family": false }, { "answer_id": "IR-TEST-D-001", "score": 0.49247393012046814, "sibling_score": 0.49247393012046814, "answer_score": null, "sibling_qid": "CHE-2026-03-0356-Q002", "sibling_text": "what is ir and it s value", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What insulation resistance is — definition, significance, factors", "cross_family": false }, { "answer_id": "IP-ENCL-001", "score": 0.4873391389846802, "sibling_score": 0.4873391389846802, "answer_score": null, "sibling_qid": "KOC-2025-03-1505-Q001", "sibling_text": "ip protection explain and how much is maximum value", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "IP rating of motors — what the numbers mean", "cross_family": false } ] }, { "qid": "MUM-2026-07-3678-Q001", "text": "Status of other functions ? Type of ship ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-07-3678", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.7625561356544495, "sibling_score": 0.7625561356544495, "answer_score": null, "sibling_qid": "MUM-2026-06-3459-Q001", "sibling_text": "type of ship sail and status of other function", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.7087334990501404, "sibling_score": 0.7087334990501404, "answer_score": null, "sibling_qid": "MUM-2026-03-0813-Q001", "sibling_text": "type of ship why only one function", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.6094444394111633, "sibling_score": 0.6094444394111633, "answer_score": 0.405573795735836, "sibling_qid": "CHE-2026-05-0614-Q001", "sibling_text": "start from type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "MUM-2026-07-3678-Q005", "text": "on which ship it is occurred? Why?", "family": "Ship Construction & Stability", "subtopic": "Parametric / Synchronous Rolling", "tid": "MUM-2026-07-3678", "tray": "new", "candidates": [ { "answer_id": "AEOVT-559-004", "score": 0.5693517923355103, "sibling_score": 0.5693517923355103, "answer_score": null, "sibling_qid": "MUM-2025-12-1803-Q004", "sibling_text": "ship in narrow passage one generator tripped on overspeed", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "One generator trips on overspeed in a narrow passage — action and checks", "cross_family": true }, { "answer_id": "VAC-COND-003", "score": 0.5498032569885254, "sibling_score": 0.5498032569885254, "answer_score": null, "sibling_qid": "MUM-2022-10-2698-Q007", "sibling_text": "have you seen a breakdown on ship i said bellow on the vac cond had ruptured while cargo disch he said any other", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Vacuum condenser failure during cargo discharge — emergency action and vacuum drop", "cross_family": true }, { "answer_id": "ANCH-C-006", "score": 0.5469775795936584, "sibling_score": 0.5469775795936584, "answer_score": null, "sibling_qid": "CHE-2026-02-0478-Q004", "sibling_text": "this type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": true } ] }, { "qid": "MUM-2026-07-3678-Q008", "text": "what is the capacity of lifeboat?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Lifeboat", "tid": "MUM-2026-07-3678", "tray": "review", "candidates": [ { "answer_id": "PLE-468-002", "score": 0.7535128593444824, "sibling_score": 0.7535128593444824, "answer_score": null, "sibling_qid": "MUM-2026-06-3667-Q008", "sibling_text": "what is the capacity of lifeboat", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "2. Painter requirements for lifeboats and rescue boats", "cross_family": false }, { "answer_id": "LRHR-A-001", "score": 0.7145220637321472, "sibling_score": 0.7145220637321472, "answer_score": null, "sibling_qid": "KOL-2025-07-1000-Q004", "sibling_text": "life raft regulation how much capacity", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "SOLAS requirement for liferafts on a cargo ship — number and total capacity", "cross_family": false }, { "answer_id": "LB-REQ-B-002", "score": 0.6892117261886597, "sibling_score": 0.6892117261886597, "answer_score": null, "sibling_qid": "KOL-2025-09-1035-Q003", "sibling_text": "lifeboat engine capacity as per solas", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Engine output, speed, endurance & the 5-minute cooling rule", "cross_family": false } ] }, { "qid": "MUM-2026-07-3678-Q010", "text": "How to measure ? And unit ?", "family": "Ship Construction & Stability", "subtopic": "Static / Dynamic Stability/damage stability", "tid": "MUM-2026-07-3678", "tray": "new", "candidates": [ { "answer_id": "FCL-P02-001", "score": 0.6198611855506897, "sibling_score": 0.6198611855506897, "answer_score": null, "sibling_qid": "MUM-2026-02-1254-Q004", "sibling_text": "how to measure", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel pump / injection timing check, setting, and adjustment", "cross_family": true }, { "answer_id": "CII-CALC-P03-001", "score": 0.5776210427284241, "sibling_score": 0.5776210427284241, "answer_score": null, "sibling_qid": "MUM-2026-05-3158-Q004S2", "sibling_text": "what measurements", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Calculating attained & required CII — formula, unit, reduction factor, measurements", "cross_family": true }, { "answer_id": "SEEMP-123-B-002", "score": 0.5643131732940674, "sibling_score": 0.5643131732940674, "answer_score": null, "sibling_qid": "KOL-2018-06-1385-Q001", "sibling_text": "seemp measures", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP in practice — implementation and energy-efficiency measures", "cross_family": true } ] }, { "qid": "MUM-2026-07-3679-Q004", "text": "⁠diesel Cycle ?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Miller / Otto / Diesel Cycle", "tid": "MUM-2026-07-3679", "tray": "review", "candidates": [ { "answer_id": "CPP-TCV-05", "score": 0.8132190108299255, "sibling_score": 0.8132190108299255, "answer_score": 0.5739580363035202, "sibling_qid": "MUM-2026-01-1239-Q008", "sibling_text": "what is diesel cycle", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Otto, Diesel and dual cycles", "cross_family": false }, { "answer_id": "MEGI-304-004", "score": 0.7061781287193298, "sibling_score": 0.7061781287193298, "answer_score": null, "sibling_qid": "KOL-2018-03-3126-Q004", "sibling_text": "dfd engines why diesel is used", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "4. Pilot fuel / pilot injection — purpose and why on every firing in gas mode", "cross_family": false }, { "answer_id": "ENG-DERATE-002", "score": 0.6896780133247375, "sibling_score": 0.6896780133247375, "answer_score": null, "sibling_qid": "MUM-2026-06-3396-Q012", "sibling_text": "derating and derating if diesel engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "How is a main engine temporarily derated and later restored, without propeller changes?", "cross_family": false } ] }, { "qid": "MUM-2026-07-3679-Q006", "text": "⁠which cycle gives more methane slip ?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Methane Slip", "tid": "MUM-2026-07-3679", "tray": "new", "candidates": [ { "answer_id": "MSLIP-330-001", "score": 0.6295391917228699, "sibling_score": 0.6295391917228699, "answer_score": 0.4576309770345688, "sibling_qid": "CHE-2025-12-0230-Q003", "sibling_text": "methane slip", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What is methane slip?", "cross_family": false }, { "answer_id": "MSLIP-330-003", "score": 0.4715451210737228, "sibling_score": null, "answer_score": 0.4715451210737228, "sibling_qid": "", "sibling_text": "what is methane slip in a diesel engine and in a boiler same definition both plants methane entering the combustion space but leaving unburned in the flue or exhaust gas engine mechanisms cyclic combustion in a cooled enclosure crevice volumes wall quench layer scavenge overlap short circuit lean charge misfire concept dependent premixed otto worst high pressure diesel cycle least", "sibling_family": "", "via": "answer_title", "answer_title": "What is methane slip in a diesel engine and in a boiler?", "cross_family": false }, { "answer_id": "MSLIP-330-002", "score": 0.43382373452186584, "sibling_score": null, "answer_score": 0.43382373452186584, "sibling_qid": "", "sibling_text": "environmental considerations why methane slip matters potency ch gwp100 28 under the imo lca guidelines mepc 391 81 ipcc ar5 basis above 80 over a 20 year horizon methane is short lived but intense so it dominates near term warming erodes the lng case a few percent slip converted to co equivalent can consume much of lng s co per energy advantage over fuel oil", "sibling_family": "", "via": "answer_title", "answer_title": "Environmental considerations — why methane slip matters", "cross_family": false } ] }, { "qid": "MUM-2026-07-3681-Q002", "text": "SSA& On scene survey?", "family": "ISPS", "subtopic": "SSP / SSAS / SSO / CSO", "tid": "MUM-2026-07-3681", "tray": "new", "candidates": [ { "answer_id": "ISPS-SSP-P02-003", "score": 0.5836355686187744, "sibling_score": 0.5836355686187744, "answer_score": 0.3239300847053528, "sibling_qid": "MUM-2026-06-3661-Q005", "sibling_text": "ssa and on scene inspection", "sibling_family": "ISPS", "via": "sibling", "answer_title": "Ship Security Assessment (SSA) and its relationship with the SSP", "cross_family": false }, { "answer_id": "SEQ-330-003", "score": 0.5011283159255981, "sibling_score": 0.5011283159255981, "answer_score": 0.34577252864837643, "sibling_qid": "KOC-2024-04-0335-Q006", "sibling_text": "seq survey apart from lsa ffa navigation", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "SEQ survey scope apart from LSA, FFA and navigation items", "cross_family": true }, { "answer_id": "ISPS-P03-002", "score": 0.481108158826828, "sibling_score": 0.481108158826828, "answer_score": null, "sibling_qid": "KOC-2023-06-0193-Q006", "sibling_text": "ssa cso sso", "sibling_family": "ISPS", "via": "sibling", "answer_title": "CSO and SSO: difference, combined duties and relationship", "cross_family": false } ] }, { "qid": "MUM-2026-07-3681-Q003", "text": "What is SOLAS chapter 9 and SOLAS chapter 11?", "family": "Other Conventions", "subtopic": "Polar Code", "tid": "MUM-2026-07-3681", "tray": "new", "candidates": [ { "answer_id": "SOLAS-OVW-009", "score": 0.6257491707801819, "sibling_score": 0.6257491707801819, "answer_score": null, "sibling_qid": "MUM-2026-07-3798-Q006", "sibling_text": "chapter 9 solas", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "SOLAS Chapter IX — ISM Code (safe operation)", "cross_family": false }, { "answer_id": "SOLAS-CH-012", "score": 0.588258683681488, "sibling_score": 0.588258683681488, "answer_score": null, "sibling_qid": "MUM-2026-06-3561-Q002", "sibling_text": "solas chapter 11 1 11 2", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "SOLAS XI-1, XI-2 and XIII - safety, security and audit", "cross_family": false }, { "answer_id": "SOLAS-CH-007", "score": 0.5732858777046204, "sibling_score": 0.5732858777046204, "answer_score": null, "sibling_qid": "KOC-2023-01-0142-Q001", "sibling_text": "solas chapter 9 explain and", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS Chapter IX - ISM Code and certificates", "cross_family": true } ] }, { "qid": "MUM-2026-07-3681-Q007", "text": "Ship has GM +0.2 m +2m, -0.5m how ship will behave?", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-07-3681", "tray": "new", "candidates": [ { "answer_id": "GM-META-004", "score": 0.5693044662475586, "sibling_score": 0.5693044662475586, "answer_score": null, "sibling_qid": "KOL-2016-08-0009-Q002", "sibling_text": "what is stable ship what if gm is negative", "sibling_family": "", "via": "sibling", "answer_title": "Negative GM, angle of loll and recovery", "cross_family": false }, { "answer_id": "LOLL-P02-004", "score": 0.5422794818878174, "sibling_score": 0.5422794818878174, "answer_score": null, "sibling_qid": "KOC-2023-08-0208-Q005", "sibling_text": "draw stability curve negative gm 5 draw transom stern", "sibling_family": "", "via": "sibling", "answer_title": "3. Angle of loll on the GZ curve — the GM condition", "cross_family": false }, { "answer_id": "SG-RAM-001", "score": 0.5182010531425476, "sibling_score": 0.5182010531425476, "answer_score": null, "sibling_qid": "MUM-2026-02-1967-Q004", "sibling_text": "ship is sailing at sea and steering gear telemotor failed what will u do", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Two-ram steering gear — a ram or cylinder cracks, leaks, seizes or ruptures: how do you keep steering?", "cross_family": false } ] }, { "qid": "MUM-2026-07-3681-Q008", "text": "Unstable ship?", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-07-3681", "tray": "new", "candidates": [ { "answer_id": "STAB-D-004", "score": 0.6369829177856445, "sibling_score": 0.6369829177856445, "answer_score": 0.5005034178495407, "sibling_qid": "KOL-2022-01-0598-Q005", "sibling_text": "how can you say that your ship is stable", "sibling_family": "", "via": "sibling", "answer_title": "Ship Stability Basics - Equilibrium States, Factors, and Motions", "cross_family": false }, { "answer_id": "DAM-STAB-P03-002", "score": 0.6250759959220886, "sibling_score": 0.6250759959220886, "answer_score": null, "sibling_qid": "KOL-2017-11-0128-Q002", "sibling_text": "damage stability for general cargo ships and ship you sailed", "sibling_family": "", "via": "sibling", "answer_title": "General cargo-ship damage stability criteria and requirements", "cross_family": false }, { "answer_id": "GM-META-004", "score": 0.6179261207580566, "sibling_score": 0.6179261207580566, "answer_score": null, "sibling_qid": "KOL-2016-08-0009-Q002", "sibling_text": "what is stable ship what if gm is negative", "sibling_family": "", "via": "sibling", "answer_title": "Negative GM, angle of loll and recovery", "cross_family": false } ] }, { "qid": "MUM-2026-07-3681-Q009", "text": "ORB code F?", "family": "MARPOL - Annex I (Oil)", "subtopic": "ORB / Oil Record Book", "tid": "MUM-2026-07-3681", "tray": "new", "candidates": [ { "answer_id": "OWS-ORB-006", "score": 0.626815676689148, "sibling_score": 0.626815676689148, "answer_score": null, "sibling_qid": "CHE-2026-05-0634-Q009", "sibling_text": "orb all codes", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "6. Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": false }, { "answer_id": "ORB-IOPP-OWS-002", "score": 0.5459701418876648, "sibling_score": 0.5459701418876648, "answer_score": null, "sibling_qid": "CHE-2026-05-0543-Q003", "sibling_text": "orb in details", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "The Oil Record Book Part I — purpose, the letter codes, and how entries are made", "cross_family": false }, { "answer_id": "FFA-CODE-001", "score": 0.5406568646430969, "sibling_score": 0.5406568646430969, "answer_score": 0.28365087807178496, "sibling_qid": "CHE-2026-05-0543-Q013", "sibling_text": "code f in detail", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Where are the fire-fighting-appliance requirements stated, and what does the “FFA Code” cover?", "cross_family": true } ] }, { "qid": "MUM-2026-07-3681-Q010", "text": "What all are the weekly entries on log book. Code F weekly?", "family": "Shipboard Records", "subtopic": "Official Log Book", "tid": "MUM-2026-07-3681", "tray": "new", "candidates": [ { "answer_id": "ORB-IOPP-OWS-004", "score": 0.557424008846283, "sibling_score": 0.557424008846283, "answer_score": 0.47383974194526673, "sibling_qid": "KOC-2026-02-0805-Q007", "sibling_text": "weekly entries of orb code item no bunker missed entry", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Weekly ORB entries — the mandatory sludge retention record, the bunker entry, and what is voluntary", "cross_family": true }, { "answer_id": "CO2-SYS-002", "score": 0.5124029517173767, "sibling_score": 0.5124029517173767, "answer_score": null, "sibling_qid": "KOC-2025-05-0592-Q011", "sibling_text": "weekly checks on co2 system", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 maintenance, inspection, testing and survey routines", "cross_family": true }, { "answer_id": "SCBA-EEBD-006", "score": 0.50831538438797, "sibling_score": 0.50831538438797, "answer_score": null, "sibling_qid": "KOL-2018-07-0199-Q003", "sibling_text": "scba weekly checks", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "SCBA — checks, tests and routine maintenance", "cross_family": true } ] }, { "qid": "MUM-2026-07-3681-Q011", "text": "When bunker taken which code?", "family": "IMO Structure & Conventions", "subtopic": "IMO / Committees / Codes", "tid": "MUM-2026-07-3681", "tray": "new", "candidates": [ { "answer_id": "ORB-IOPP-OWS-004", "score": 0.52689528465271, "sibling_score": 0.52689528465271, "answer_score": null, "sibling_qid": "MUM-2026-08-3831-Q008", "sibling_text": "bunker entry in orb", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Weekly ORB entries — the mandatory sludge retention record, the bunker entry, and what is voluntary", "cross_family": true }, { "answer_id": "BDI-469-001", "score": 0.4997926354408264, "sibling_score": 0.4997926354408264, "answer_score": null, "sibling_qid": "MUM-2025-08-2357-Q001S4", "sibling_text": "new bunker density is different your action", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "New bunker density is higher or different from the previous fuel — your actions", "cross_family": true }, { "answer_id": "CLC-CIV-A-007", "score": 0.4980134963989258, "sibling_score": 0.4980134963989258, "answer_score": null, "sibling_qid": "KOL-2025-07-0994-Q006", "sibling_text": "bunker convention", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Bunker Convention — scope, liability and certificate", "cross_family": true } ] }, { "qid": "MUM-2026-07-3682-Q006", "text": "MLC complete?", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2026-07-3682", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-006", "score": 0.4826205372810364, "sibling_score": 0.4826205372810364, "answer_score": 0.24247248768806456, "sibling_qid": "MUM-2026-06-3656-Q002", "sibling_text": "certificates under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false }, { "answer_id": "MRV-DCS-001", "score": 0.4641086459159851, "sibling_score": 0.4641086459159851, "answer_score": null, "sibling_qid": "KOL-2024-08-0860-Q005", "sibling_text": "eumrv complete", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is the difference between EU MRV and IMO DCS?", "cross_family": true }, { "answer_id": "MLC-WRH-B-007", "score": 0.45655426383018494, "sibling_score": 0.45655426383018494, "answer_score": null, "sibling_qid": "MUM-2026-01-0701-Q002", "sibling_text": "detainable deficiency of mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false } ] }, { "qid": "MUM-2026-07-3682-Q007", "text": "After peak tank arrangement and purpose?", "family": "Cargo Ops - Tankers", "subtopic": "Cargo Tank Construction", "tid": "MUM-2026-07-3682", "tray": "new", "candidates": [ { "answer_id": "PPS-230-006", "score": 0.5534713268280029, "sibling_score": 0.5534713268280029, "answer_score": null, "sibling_qid": "KOL-2025-09-1065-Q005", "sibling_text": "fore peak tank construction panting pounding arrangement", "sibling_family": "", "via": "sibling", "answer_title": "Fore-end / fore-peak structure: draw and describe", "cross_family": false }, { "answer_id": "LTK-386-002", "score": 0.5411219000816345, "sibling_score": 0.5411219000816345, "answer_score": null, "sibling_qid": "KOL-2025-04-0933-Q004", "sibling_text": "slope tank use", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What is a slop tank and what are its purposes on a tanker?", "cross_family": false }, { "answer_id": "BC-HOPPER-G-001", "score": 0.5098112225532532, "sibling_score": 0.5098112225532532, "answer_score": 0.4249586835503578, "sibling_qid": "KOL-2018-06-0184-Q006", "sibling_text": "hopper tank why why is this upper tank tapered inclined", "sibling_family": "", "via": "sibling", "answer_title": "Hopper and topside tanks — what they are and their purpose", "cross_family": false } ] }, { "qid": "MUM-2026-07-3682-Q008", "text": "forepeak tank arrangement and purpose ?", "family": "Ship Construction & Stability", "subtopic": "Ship-Type Construction (Bulk/Tanker/Container)", "tid": "MUM-2026-07-3682", "tray": "review", "candidates": [ { "answer_id": "PPS-230-006", "score": 0.6705287098884583, "sibling_score": 0.6705287098884583, "answer_score": null, "sibling_qid": "MUM-2026-08-3829-Q005", "sibling_text": "forepeak tank construction", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Fore-end / fore-peak structure: draw and describe", "cross_family": false }, { "answer_id": "BSBH-420-002", "score": 0.5549519062042236, "sibling_score": 0.5549519062042236, "answer_score": 0.4761200755834579, "sibling_qid": "MUM-2026-06-3359-Q004", "sibling_text": "forepeak construction", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Fore-end / forepeak construction forward of the collision bulkhead — members and cross-section", "cross_family": false }, { "answer_id": "BHD-TYPE-B-001", "score": 0.5277498960494995, "sibling_score": 0.5277498960494995, "answer_score": null, "sibling_qid": "KOL-2022-04-0622-Q006", "sibling_text": "located in tank regulation for tank situated fwd of collision bulkhead", "sibling_family": "", "via": "sibling", "answer_title": "Collision bulkhead — definition, location and SOLAS regulations", "cross_family": false } ] }, { "qid": "MUM-2026-07-3682-Q009", "text": "double bottom tank arrangement and purpose ?", "family": "Cargo Ops - Tankers", "subtopic": "Cargo Tank Construction", "tid": "MUM-2026-07-3682", "tray": "new", "candidates": [ { "answer_id": "DB-TORBOX-B-002", "score": 0.6242177486419678, "sibling_score": 0.6242177486419678, "answer_score": null, "sibling_qid": "KOC-2024-08-0392-Q012", "sibling_text": "double bottom tank requirement how its separated", "sibling_family": "", "via": "sibling", "answer_title": "Double-bottom tanks — safeties, requirements and regulations", "cross_family": false }, { "answer_id": "DBTB-A-002", "score": 0.6228988766670227, "sibling_score": 0.6228988766670227, "answer_score": 0.5002896159887313, "sibling_qid": "MUM-2024-10-0214-Q003", "sibling_text": "construction of double bottom tank", "sibling_family": "", "via": "sibling", "answer_title": "Double-bottom tanks: purpose, advantages, disadvantages and stability effect", "cross_family": false }, { "answer_id": "COT-09", "score": 0.6190181970596313, "sibling_score": 0.6190181970596313, "answer_score": null, "sibling_qid": "MUM-2026-09-3920-Q005", "sibling_text": "double bottom tank construction and it s info in stability book", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Ballast-tank construction", "cross_family": false } ] }, { "qid": "MUM-2026-07-3683-Q001", "text": "Written and other function status ?", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-07-3683", "tray": "new", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.5952109694480896, "sibling_score": 0.5952109694480896, "answer_score": null, "sibling_qid": "MUM-2026-05-3187-Q001", "sibling_text": "status of other orals and written", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": true }, { "answer_id": "EXHV-P01-001", "score": 0.5315018892288208, "sibling_score": 0.5315018892288208, "answer_score": null, "sibling_qid": "KOC-2026-08-2106-Q001", "sibling_text": "status of written oral company type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.5184515118598938, "sibling_score": 0.5184515118598938, "answer_score": null, "sibling_qid": "MUM-2026-06-3459-Q001", "sibling_text": "type of ship sail and status of other function", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false } ] }, { "qid": "MUM-2026-07-3683-Q002", "text": "Type of ship sailed ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-07-3683", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8457697033882141, "sibling_score": 0.8457697033882141, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8447827696800232, "sibling_score": 0.8447827696800232, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.792698323726654, "sibling_score": 0.792698323726654, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "MUM-2026-07-3683-Q003", "text": "How much experience ?", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-07-3683", "tray": "new", "candidates": [ { "answer_id": "BM-SF-CF-003", "score": 0.4029885530471802, "sibling_score": 0.4029885530471802, "answer_score": null, "sibling_qid": "MUM-2026-02-0790-Q004", "sibling_text": "ship experience forces", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Forces on a ship that produce shear force and bending moment", "cross_family": true }, { "answer_id": "CO2-SYS-003", "score": 0.39658617973327637, "sibling_score": 0.39658617973327637, "answer_score": null, "sibling_qid": "KOC-2025-01-0509-Q004", "sibling_text": "10 year", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 system — use decisions, suitability and post-release checks", "cross_family": true }, { "answer_id": "COC-001", "score": 0.38388922810554504, "sibling_score": 0.38388922810554504, "answer_score": null, "sibling_qid": "MUM-2026-03-2952-Q020", "sibling_text": "how much is the max time given", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is a Condition of Class? Give examples, say where it is found, how much time is given to rectify it, and what happens if it is not met in time.", "cross_family": true } ] }, { "qid": "MUM-2026-07-3683-Q005", "text": "Emergency fire pump priming show to surveyor ?", "family": "SOLAS - Fire Safety", "subtopic": "Emergency Fire Pump", "tid": "MUM-2026-07-3683", "tray": "review", "candidates": [ { "answer_id": "EFP-B-001", "score": 0.8306484222412109, "sibling_score": 0.8306484222412109, "answer_score": 0.5693530380725861, "sibling_qid": "MUM-2026-04-0901-Q001", "sibling_text": "emergency fire pump priming unit try out in front of surveyor", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "How the emergency fire pump priming arrangement works — and how you prove it to a surveyor", "cross_family": false }, { "answer_id": "PPS-622-005", "score": 0.7694287300109863, "sibling_score": 0.7694287300109863, "answer_score": 0.5958897501230239, "sibling_qid": "KOC-2026-03-0854-Q003", "sibling_text": "emgy fire pump priming pump working satisfactory how to show surveyor", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "What is the priming arrangement for the emergency fire pump, and how do you demonstrate to the surveyor that the priming unit works satisfactorily?", "cross_family": true }, { "answer_id": "EFP-A-002", "score": 0.7385852932929993, "sibling_score": 0.7385852932929993, "answer_score": 0.6202044427394867, "sibling_qid": "KOL-2025-05-0947-Q005", "sibling_text": "how will a surveyor test emergency fire pump", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "How do you test or demonstrate the emergency fire pump to a surveyor / PSC for satisfactory performance?", "cross_family": false } ] }, { "qid": "MUM-2026-07-3684-Q004", "text": "PSC inspection initial and detailed?", "family": "Surveys - Statutory", "subtopic": "PSC / Flag / RO / CIC / MoU", "tid": "MUM-2026-07-3684", "tray": "review", "candidates": [ { "answer_id": "AUDIT-IE-002", "score": 0.6580106019973755, "sibling_score": 0.6580106019973755, "answer_score": null, "sibling_qid": "MUM-2026-05-3290-Q005", "sibling_text": "initial and detailed inspection", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "As Second Engineer, preparing for and handling an internal audit on board", "cross_family": false }, { "answer_id": "PSC-003", "score": 0.6527535319328308, "sibling_score": 0.6527535319328308, "answer_score": 0.44396518766880033, "sibling_qid": "CHE-2026-02-0106-Q005", "sibling_text": "psc inspection", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "3. What the PSCO checks after coming aboard, and how the inspection is conducted", "cross_family": false }, { "answer_id": "PSC-002", "score": 0.6412292122840881, "sibling_score": 0.6412292122840881, "answer_score": 0.4527926206588745, "sibling_qid": "MUM-2022-07-0015-Q004", "sibling_text": "types of inspection by psc", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "2. Types, criteria and escalation of a PSC inspection", "cross_family": false } ] }, { "qid": "MUM-2026-07-3684-Q006", "text": "What is class F fire ?", "family": "SOLAS - Fire Safety", "subtopic": "Fire Extinguisher Types", "tid": "MUM-2026-07-3684", "tray": "new", "candidates": [ { "answer_id": "FVE-BF061-002", "score": 0.6276336908340454, "sibling_score": 0.6276336908340454, "answer_score": null, "sibling_qid": "KOC-2026-02-0810-Q006", "sibling_text": "fire classes", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "What is the fire triangle, the fire rectangle and the fire tetrahedron?", "cross_family": false }, { "answer_id": "FEXT-583-006", "score": 0.5951336622238159, "sibling_score": 0.5951336622238159, "answer_score": 0.43626031577587127, "sibling_qid": "KOC-2024-11-0453-Q001", "sibling_text": "class d fire", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Classes of fire, which class a galley fire falls under, and special measures for solid and metal fires", "cross_family": false }, { "answer_id": "A60-BCLASS-001", "score": 0.5035499334335327, "sibling_score": 0.5035499334335327, "answer_score": null, "sibling_qid": "KOL-2023-07-0753-Q002", "sibling_text": "fire bulkhead a type", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "A-60 / Class ‘A’ fire division — what it is", "cross_family": false } ] }, { "qid": "MUM-2026-07-3685-Q003", "text": "Emergency generator regulations?", "family": "Electrical - Generator & Alternator", "subtopic": "Emergency DG", "tid": "MUM-2026-07-3685", "tray": "review", "candidates": [ { "answer_id": "EDG-P01-001", "score": 0.8059443831443787, "sibling_score": 0.8059443831443787, "answer_score": 0.5109801650047302, "sibling_qid": "KOC-2026-03-0877-Q006", "sibling_text": "emergency generator regulation requirement", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Emergency source of power — the SOLAS requirements", "cross_family": false }, { "answer_id": "EDG-P01-004", "score": 0.5363710105419158, "sibling_score": null, "answer_score": 0.5363710105419158, "sibling_qid": "", "sibling_text": "emergency generator explain it as a 2nd engineer independent emergency source feeding the emergency switchboard supplies the safety essential loads on loss of main power reg 43 distribution ship typical not a solas figure power loads at the generated voltage commonly 440 v emergency fire pump steering gear emergency air compressor the lighting transformer feed lighting small loads via step down tr", "sibling_family": "", "via": "answer_title", "answer_title": "Emergency generator — explain it as a 2nd Engineer", "cross_family": false }, { "answer_id": "EDG-P01-003", "score": 0.530301570892334, "sibling_score": null, "answer_score": 0.530301570892334, "sibling_qid": "", "sibling_text": "emergency switchboard location and the eg board arrangement esb installed as near as practicable to the emergency source reg 43 5 1 where the source is a generator esb in the same space as the eg unless its operation would be impaired reg 43 5 2", "sibling_family": "", "via": "answer_title", "answer_title": "Emergency switchboard — location and the EG–board arrangement", "cross_family": false } ] }, { "qid": "MUM-2026-07-3686-Q001", "text": "Intro", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "MUM-2026-07-3686", "tray": "new", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.42303788661956787, "sibling_score": 0.42303788661956787, "answer_score": null, "sibling_qid": "MUM-2026-05-3248-Q001", "sibling_text": "introduction sea time company pre sea ship type engine type me", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "STR-DEC-A-001", "score": 0.4099651575088501, "sibling_score": 0.4099651575088501, "answer_score": null, "sibling_qid": "MUM-2026-05-3192-Q008", "sibling_text": "type starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": true }, { "answer_id": "IMSP-002", "score": 0.40995222330093384, "sibling_score": 0.40995222330093384, "answer_score": null, "sibling_qid": "MUM-2025-11-1754-Q002", "sibling_text": "type starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What types of starter are used onboard? Name and explain the starting methods for a three-phase induction motor, including the soft starter.", "cross_family": true } ] }, { "qid": "MUM-2026-07-3686-Q002", "text": "Engine type?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-07-3686", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.8320021629333496, "sibling_score": 0.8320021629333496, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.8037992715835571, "sibling_score": 0.8037992715835571, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-001", "score": 0.4633611708879471, "sibling_score": null, "answer_score": 0.4633611708879471, "sibling_qid": "", "sibling_text": "1 turbocharger type main engine vs generator engine compressor is centrifugal in both cases only the turbine type differs large slow speed main engine axial flow turbine single stage constant pressure system", "sibling_family": "", "via": "answer_title", "answer_title": "1. Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "MUM-2026-07-3686-Q009", "text": "Refrigeration room temp control?", "family": "Automation & Controls", "subtopic": "Temperature / Pressure / Level Sensor", "tid": "MUM-2026-07-3686", "tray": "review", "candidates": [ { "answer_id": "REFR-FLT-001", "score": 0.7354791164398193, "sibling_score": 0.7354791164398193, "answer_score": null, "sibling_qid": "MUM-2023-01-2160-Q007", "sibling_text": "how reefer room temperature maintenaned at diff temperatures", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Provision/cold room temperature: will not pull down, runs too low, or will not hold", "cross_family": true }, { "answer_id": "RAC-MAT-320-001", "score": 0.7074084281921387, "sibling_score": 0.7074084281921387, "answer_score": 0.5764511585235595, "sibling_qid": "MUM-2026-05-3199-Q012", "sibling_text": "how temperature is controlled in ref room", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "1. Holding different room temperatures — meat, fish, vegetable, dairy", "cross_family": true }, { "answer_id": "REF-CYC-003", "score": 0.6940129995346069, "sibling_score": 0.6940129995346069, "answer_score": 0.5481352806091309, "sibling_qid": "MUM-2026-03-1303-Q012", "sibling_text": "how temperature of different reefer room maintained", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "3. Maintaining different rooms at different temperatures from one plant", "cross_family": true } ] }, { "qid": "MUM-2026-07-3687-Q001", "text": "Functions appearing for Status of other functions.", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-07-3687", "tray": "new", "candidates": [ { "answer_id": "AVR-EXC-B-001", "score": 0.5327718257904053, "sibling_score": 0.5327718257904053, "answer_score": null, "sibling_qid": "KOC-2026-01-1689-Q004", "sibling_text": "explain status avr", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Explain the AVR working principle and control-loop operation.", "cross_family": true }, { "answer_id": "IMO-CODES-P03-002", "score": 0.5258516073226929, "sibling_score": 0.5258516073226929, "answer_score": null, "sibling_qid": "MUM-2026-03-0815-Q003", "sibling_text": "which function", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": true }, { "answer_id": "EEXI-006", "score": 0.5165723562240601, "sibling_score": 0.5165723562240601, "answer_score": null, "sibling_qid": "KOC-2023-05-0184-Q006", "sibling_text": "current status of eexi", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is the current status of EEXI, and explain the “EEXI rating” as the latest Annex VI amendment", "cross_family": true } ] }, { "qid": "MUM-2026-07-3687-Q002", "text": "Type of vessel?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-07-3687", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8505485653877258, "sibling_score": 0.8505485653877258, "answer_score": null, "sibling_qid": "MUM-2026-06-3384-Q001", "sibling_text": "type of vessel", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.7767617702484131, "sibling_score": 0.7767617702484131, "answer_score": null, "sibling_qid": "CHE-2026-02-0481-Q001", "sibling_text": "type of vessels sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7698792219161987, "sibling_score": 0.7698792219161987, "answer_score": 0.5227487921714783, "sibling_qid": "CHE-2026-02-0109-Q001", "sibling_text": "type of ship explain what type is your vessel explain their type and difference", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "MUM-2026-07-3687-Q004", "text": "What is NER?", "family": "Electrical - Distribution & Earthing", "subtopic": "", "tid": "MUM-2026-07-3687", "tray": "review", "candidates": [ { "answer_id": "NER-HV-P04-001", "score": 0.7087831497192383, "sibling_score": 0.7087831497192383, "answer_score": 0.3534026712179184, "sibling_qid": "MUM-2025-08-1597-Q001", "sibling_text": "what is ner", "sibling_family": "", "via": "sibling", "answer_title": "What an NER is, where it is used, and why it is fitted in HV systems", "cross_family": false }, { "answer_id": "NER-HV-P04-002", "score": 0.6003017425537109, "sibling_score": 0.6003017425537109, "answer_score": 0.3135358691215515, "sibling_qid": "MUM-2026-09-3922-Q006", "sibling_text": "what is ner and how to calculate", "sibling_family": "Electrical - High Voltage", "via": "sibling", "answer_title": "How the NER value is selected/calculated, and its construction and material", "cross_family": true }, { "answer_id": "IR-TEST-305-005", "score": 0.3098977670073509, "sibling_score": null, "answer_score": 0.3098977670073509, "sibling_qid": "", "sibling_text": "star point hv alternator and ner context hv alternator neutral is earthed through an ner neutral earthing resistor to limit earth fault current lift the star point ner link before meggering otherwise you read through the resistor false low", "sibling_family": "", "via": "answer_title", "answer_title": "Star-point, HV alternator and NER context", "cross_family": false } ] }, { "qid": "MUM-2026-07-3687-Q009", "text": "How the boiler ignition circuit works?", "family": "Boilers - General", "subtopic": "Boiler Miscellaneous", "tid": "MUM-2026-07-3687", "tray": "review", "candidates": [ { "answer_id": "BFEYE-340-003", "score": 0.7797186970710754, "sibling_score": 0.7797186970710754, "answer_score": 0.5716626048088074, "sibling_qid": "MUM-2026-06-3533-Q010", "sibling_text": "how the boiler ignition circuit works", "sibling_family": "Boilers - General", "via": "sibling", "answer_title": "Boiler firing / ignition sequence: pilot burner, primary and secondary flame, ignition transformer", "cross_family": false }, { "answer_id": "ACC-603-001", "score": 0.6280422806739807, "sibling_score": 0.6280422806739807, "answer_score": null, "sibling_qid": "KOL-2017-10-1329-Q003", "sibling_text": "boiler automatic combustion start procedure step by step", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "The automatic combustion control system — how it works, the start sequence, and the emergency arrangement", "cross_family": true }, { "answer_id": "BFEYE-340-001", "score": 0.6257729530334473, "sibling_score": 0.6257729530334473, "answer_score": 0.5401952266693115, "sibling_qid": "KOL-2025-11-4069-Q005", "sibling_text": "safety and trips in boiler how boiler is started if flame eye is not sensing flame and is active during starting", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Flame failure: why it is a boiler safety, trip logic, alarm and testing", "cross_family": true } ] }, { "qid": "MUM-2026-07-3688-Q001", "text": "Type of ships done", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-07-3688", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8282515406608582, "sibling_score": 0.8282515406608582, "answer_score": null, "sibling_qid": "MUM-2026-02-1280-Q001", "sibling_text": "type of ship done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7441067099571228, "sibling_score": 0.7441067099571228, "answer_score": 0.4576203882694244, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.7107160687446594, "sibling_score": 0.7107160687446594, "answer_score": 0.46800867617130276, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2026-07-3689-Q001", "text": "Status of exams ? Number of attempts ?", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2026-07-3689", "tray": "new", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.593140184879303, "sibling_score": 0.593140184879303, "answer_score": null, "sibling_qid": "MUM-2026-01-1252-Q001", "sibling_text": "status of results oral written exam", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": false }, { "answer_id": "NDT-METH-P01-001", "score": 0.504554808139801, "sibling_score": 0.504554808139801, "answer_score": null, "sibling_qid": "MUM-2026-03-2946-Q006", "sibling_text": "the best thing you can do is figure out which exams you can appear for whether single subjects pairs or all together it depends on your will and capability for me i appeared in pairs 2 writtens and 1 oral because i knew my capability it differs for everyone many attempt all 6 together as per my knowledge few pass all 6 some pass 4 5 some pass 1 3 and some failed all", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "NDT methods, NDT vs destructive testing, and onboard use", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.4961417615413666, "sibling_score": 0.4961417615413666, "answer_score": null, "sibling_qid": "CHE-2026-01-0101-Q001", "sibling_text": "types of ship done and exam status", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": true } ] }, { "qid": "MUM-2026-07-3689-Q002", "text": "While de ballasting, ballast pump starts to vibrate and is causing noise, why and what to do?", "family": "Pumps - Centrifugal & PD", "subtopic": "Centrifugal Pump", "tid": "MUM-2026-07-3689", "tray": "review", "candidates": [ { "answer_id": "PCD-P01-06", "score": 0.784726619720459, "sibling_score": 0.784726619720459, "answer_score": null, "sibling_qid": "MUM-2023-11-2204-Q001", "sibling_text": "1ballast pump running from 4hours and now it is vibrating action as a 2nd eng", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Centrifugal pump — reasons for performance drop, low efficiency, vibration, and still-poor-after-overhaul", "cross_family": false }, { "answer_id": "PPS-622-004", "score": 0.7036241888999939, "sibling_score": 0.7036241888999939, "answer_score": 0.48716810941696165, "sibling_qid": "KOL-2026-04-3944-Q004", "sibling_text": "during de ballasting pump not taking suction action", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "The bilge or ballast pump is not taking suction — reasons, how to identify the problem, how to rectify it. What does the suction gauge read, and what is suction head?", "cross_family": false }, { "answer_id": "PAL-620-002", "score": 0.6784049868583679, "sibling_score": 0.6784049868583679, "answer_score": 0.5055229991674423, "sibling_qid": "KOL-2022-05-4008-Q003", "sibling_text": "multistage pump single stage pump overhaul after overhaul pump start vibrating reason and what to check", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "How do you align and refit a pump and motor set after an overhaul, and what checks apply? The pump vibrates after overhaul — reasons and actions.", "cross_family": false } ] }, { "qid": "MUM-2026-07-3689-Q004", "text": "AE bottom end bearing clearance in place by just removing crankcase cover?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Decarb Checks / Connecting Rod / Bottom End Bearing", "tid": "MUM-2026-07-3689", "tray": "review", "candidates": [ { "answer_id": "AECR-651-004", "score": 0.7936245799064636, "sibling_score": 0.7936245799064636, "answer_score": 0.5802882939577102, "sibling_qid": "MUM-2026-06-3370-Q002", "sibling_text": "bottom end bearing clearance of auxiliary engines without removing crankcase doors", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "How do you inspect the bottom-end bearing, and how do you take the AE big-end clearance without removing it?", "cross_family": false }, { "answer_id": "AE-CRP-007", "score": 0.7667997479438782, "sibling_score": 0.7667997479438782, "answer_score": null, "sibling_qid": "MUM-2026-09-3971-Q013", "sibling_text": "ae bottom end bearing clearance", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE big-end / bottom-end bearing — inspection, bedding, nip and crush", "cross_family": false }, { "answer_id": "XHD-BRG-B-004", "score": 0.7629430294036865, "sibling_score": 0.7629430294036865, "answer_score": null, "sibling_qid": "MUM-2026-05-3265-Q007", "sibling_text": "bottom end cross head bearing clearance how to take", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Measuring crosshead bearing and guide-shoe clearances", "cross_family": false } ] }, { "qid": "MUM-2026-07-3689-Q005", "text": "Compressor second stage relief valve lifting. Why and remedies ?", "family": "Air Compressor", "subtopic": "Compressor Relief Valve", "tid": "MUM-2026-07-3689", "tray": "review", "candidates": [ { "answer_id": "ACRV-002", "score": 0.7947947978973389, "sibling_score": 0.7947947978973389, "answer_score": 0.6221849977970123, "sibling_qid": "MUM-2026-02-2579-Q004", "sibling_text": "compressor 2nd stage relief valve lifts what are the reasons", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Second or final-stage relief valve lifting — reasons and checks", "cross_family": false }, { "answer_id": "ACRV-001", "score": 0.7554530501365662, "sibling_score": 0.7554530501365662, "answer_score": 0.5706388890743256, "sibling_qid": "CHE-2026-04-0257-Q008", "sibling_text": "two stage air compressor first stage pressure relief valve lift what reason", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "First-stage relief valve lifting or leaking — reasons and checks", "cross_family": false }, { "answer_id": "ACSS-002", "score": 0.7170999646186829, "sibling_score": 0.7170999646186829, "answer_score": 0.5205444037914276, "sibling_qid": "MUM-2021-02-2128-Q003", "sibling_text": "1st stage air compressor relief valve lifting reasons", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Relief / safety valves: settings, testing, lifting reasons; bursting disc", "cross_family": false } ] }, { "qid": "MUM-2026-07-3691-Q001", "text": "Status of exams ? Number of attempts ?", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-07-3691", "tray": "new", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.5470218062400818, "sibling_score": 0.5470218062400818, "answer_score": null, "sibling_qid": "CHE-2026-01-0101-Q001", "sibling_text": "types of ship done and exam status", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.5432437658309937, "sibling_score": 0.5432437658309937, "answer_score": null, "sibling_qid": "MUM-2026-01-1252-Q001", "sibling_text": "status of results oral written exam", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": true }, { "answer_id": "CFF-P02-001", "score": 0.4837452173233032, "sibling_score": 0.4837452173233032, "answer_score": null, "sibling_qid": "KOL-2017-09-1324-Q005", "sibling_text": "fatigue failure lots of cross qst with all qst finally done with cl 2 thank you all for your support and best of luck for who r in que", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Fatigue failure — what it is and where it occurs", "cross_family": true } ] }, { "qid": "MUM-2026-07-3691-Q002", "text": "Type of ship and ME nomenclature and generator?", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-07-3691", "tray": "review", "candidates": [ { "answer_id": "LLST-AB-001", "score": 0.651923418045044, "sibling_score": 0.651923418045044, "answer_score": 0.4144185557961464, "sibling_qid": "CHE-2026-05-0614-Q001", "sibling_text": "start from type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.6381505131721497, "sibling_score": 0.6381505131721497, "answer_score": null, "sibling_qid": "MUM-2026-05-3002-Q001", "sibling_text": "type of ship and all", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.6073351502418518, "sibling_score": 0.6073351502418518, "answer_score": null, "sibling_qid": "MUM-2025-08-2357-Q001", "sibling_text": "type of ship type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "MUM-2026-07-3691-Q004", "text": "Overhaul and checks of GE FO pump?", "family": "Pumps - Centrifugal & PD", "subtopic": "Centrifugal Pump", "tid": "MUM-2026-07-3691", "tray": "review", "candidates": [ { "answer_id": "PCD-P03-01", "score": 0.696465790271759, "sibling_score": 0.696465790271759, "answer_score": null, "sibling_qid": "MUM-2026-05-3078-Q006", "sibling_text": "overhaul of centrifugal pump checks on that", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Centrifugal pump overhaul — procedure, checks, clearances and survey evidence", "cross_family": false }, { "answer_id": "PCD-P04-04", "score": 0.6486969590187073, "sibling_score": 0.6486969590187073, "answer_score": 0.4812740683555603, "sibling_qid": "KOL-2018-12-1433-Q007", "sibling_text": "bilge pump overhauled what things u will check", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "04. Bilge / reciprocating pump overhaul — checks, valves and piston-ring wear", "cross_family": false }, { "answer_id": "PCD-P05-02", "score": 0.6368283629417419, "sibling_score": 0.6368283629417419, "answer_score": null, "sibling_qid": "MUM-2026-07-3709-Q008", "sibling_text": "screw pump overhauling what u will check", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Screw pump — construction, working, types, drive arrangement, clearances, why preferred over gear", "cross_family": false } ] }, { "qid": "MUM-2026-07-3691-Q006", "text": "GAS CARRIER TANK PRESSURE relief valve set pressure and how to test lifting of v/v ?", "family": "Cargo Ops - Gas Carriers", "subtopic": "", "tid": "MUM-2026-07-3691", "tray": "review", "candidates": [ { "answer_id": "MAST-PVA-005", "score": 0.6594802141189575, "sibling_score": 0.6594802141189575, "answer_score": 0.5489324778318405, "sibling_qid": "KOL-2017-01-0045-Q003", "sibling_text": "oil tanker cargo tank safeties only those are fitted on the tank pv valve pr set value both vaccume and over pr high pr alarm set value low pr alarm set value overfill alarm set value high level alarm set value how u will do testing of pv valve on board units of pv valve setting", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "P/V valve — testing and calibration", "cross_family": true }, { "answer_id": "ACCT-583-B-FINAL-1-002", "score": 0.6430488228797913, "sibling_score": 0.6430488228797913, "answer_score": null, "sibling_qid": "KOL-2026-02-3922-Q005", "sibling_text": "what is lifting of safety valve tell only within 3 percent of designated set pressure nothing else", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Acceptance limits and durations — the accumulation limit, the maximum test periods, and the action if the limit is exceeded", "cross_family": true }, { "answer_id": "CO2-SYS-002", "score": 0.635306715965271, "sibling_score": 0.635306715965271, "answer_score": null, "sibling_qid": "KOC-2026-03-0874-Q018", "sibling_text": "how to pressure test the system at what pressure is it tested relief valve pressure setting in the line", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 maintenance, inspection, testing and survey routines", "cross_family": true } ] }, { "qid": "MUM-2026-07-3691-Q007", "text": "Governor terminal shaft - how many turns you can rotate it?", "family": "Automation & Controls", "subtopic": "Governor (Mechanical / Electronic)", "tid": "MUM-2026-07-3691", "tray": "new", "candidates": [ { "answer_id": "GOV-082-P01-014", "score": 0.5605238080024719, "sibling_score": 0.5605238080024719, "answer_score": 0.4058435559272766, "sibling_qid": "MUM-2024-07-1084-Q014", "sibling_text": "gen governor 4 knobs what all 15 09 07 10 31", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "The governor 'knobs' — external adjustments and naming the parts", "cross_family": false }, { "answer_id": "GOV-082-P01-009", "score": 0.552790105342865, "sibling_score": 0.552790105342865, "answer_score": 0.3964130699634552, "sibling_qid": "KOC-2025-10-1056-Q007", "sibling_text": "ball head in governor", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Mechanical (centrifugal) governor and the ball head", "cross_family": false }, { "answer_id": "GOV-P03-002", "score": 0.5353244543075562, "sibling_score": 0.5353244543075562, "answer_score": null, "sibling_qid": "KOC-2024-03-0991-Q002", "sibling_text": "governor knobs what happens inside governor when u adjust speed setting knob", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Droop, isochronous operation and load sharing", "cross_family": false } ] }, { "qid": "MUM-2026-07-3691-Q008", "text": "What is the arrangement for the exhaust manifold ?", "family": "2-Stroke - Exhaust, Valve & Starting Air", "subtopic": "Exhaust Valve & Exhaust System", "tid": "MUM-2026-07-3691", "tray": "review", "candidates": [ { "answer_id": "EXHV-297-007", "score": 0.753695011138916, "sibling_score": 0.753695011138916, "answer_score": 0.5345882475376129, "sibling_qid": "MUM-2026-06-3420-Q004", "sibling_text": "exhaust manifold especial arrangement for grouping of suction from each cylinder in me", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust manifold / gas receiver — construction, joints, inspection & temperature locations", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.6220713257789612, "sibling_score": 0.6220713257789612, "answer_score": null, "sibling_qid": "KOL-2021-09-1625-Q001", "sibling_text": "exhaust valve opening closing arrangements", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "EXV-P02-001", "score": 0.6103622317314148, "sibling_score": 0.6103622317314148, "answer_score": null, "sibling_qid": "KOC-2023-01-1801-Q001", "sibling_text": "1 exhaust vv overhaul", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve overhaul & dismantling — procedure and precautions", "cross_family": false } ] }, { "qid": "MUM-2026-07-3691-Q009", "text": "How to check which side fouled without opening?", "family": "2-Stroke - Exhaust, Valve & Starting Air", "subtopic": "", "tid": "MUM-2026-07-3691", "tray": "new", "candidates": [ { "answer_id": "STHX-007", "score": 0.5210325717926025, "sibling_score": 0.5210325717926025, "answer_score": null, "sibling_qid": "NOI-2026-09-0008-Q009", "sibling_text": "sw cooler is sw cooled and you have suspecteed cooler to be fouled how will you know which side is fouled", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "STHX-07 — Performance, efficiency, choking and poor heat transfer", "cross_family": true }, { "answer_id": "BED-CHOCK-003", "score": 0.49449947476387024, "sibling_score": 0.49449947476387024, "answer_score": null, "sibling_qid": "MUM-2022-10-2708-Q019", "sibling_text": "checks on side end chock", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Where are side and end chocks fitted, and what checks are carried out on them?", "cross_family": true }, { "answer_id": "CYL-LINER-P03-002", "score": 0.43017640709877014, "sibling_score": 0.43017640709877014, "answer_score": null, "sibling_qid": "MUM-2026-06-3523-Q015", "sibling_text": "liner has worn edge at top how will u come to know without opening or inspection", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Detecting and confirming a cracked or leaking liner — and pinning the unit", "cross_family": true } ] }, { "qid": "MUM-2026-07-3692-Q002", "text": "What is benefit of Transformer construction ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Transformer Theory", "tid": "MUM-2026-07-3692", "tray": "new", "candidates": [ { "answer_id": "XFMR-THY-G-001", "score": 0.6299514174461365, "sibling_score": 0.6299514174461365, "answer_score": null, "sibling_qid": "KOC-2023-01-1223-Q005", "sibling_text": "advantage of oil cooled transformers", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "1. Transformer cooling: why air-cooled onboard, not oil-cooled", "cross_family": false }, { "answer_id": "XFMR-THY-D-001", "score": 0.6278856992721558, "sibling_score": 0.6278856992721558, "answer_score": 0.4737008213996887, "sibling_qid": "KOL-2021-07-2469-Q001", "sibling_text": "construction of transformer core why this construction", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Transformer — principle and working", "cross_family": false }, { "answer_id": "AUTOTX-STR-003", "score": 0.6003193855285645, "sibling_score": 0.6003193855285645, "answer_score": null, "sibling_qid": "KOL-2025-08-2826-Q009", "sibling_text": "construction of auto transformer where we use it disadvantage", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "3. Where the auto-transformer starter is used on board, and why", "cross_family": true } ] }, { "qid": "MUM-2026-07-3692-Q003", "text": "Can we step down DC If I want to do how to do?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Step Up / Step Down", "tid": "MUM-2026-07-3692", "tray": "new", "candidates": [ { "answer_id": "XFMR-THY-G-007", "score": 0.4928320646286011, "sibling_score": 0.4928320646286011, "answer_score": 0.24858304113149643, "sibling_qid": "KOL-2022-07-2582-Q007", "sibling_text": "why step down is required", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "7. Step-up / step-down: the real purpose onboard", "cross_family": false }, { "answer_id": "VFD-INV-P02-005", "score": 0.4142702519893646, "sibling_score": 0.4142702519893646, "answer_score": null, "sibling_qid": "KOL-2019-05-2285-Q004", "sibling_text": "how to change d c to a c", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "How do rectifier, DC link and inverter stages convert AC to DC and DC to AC?", "cross_family": false }, { "answer_id": "XFMR-THY-D-002", "score": 0.37883397936820984, "sibling_score": 0.37883397936820984, "answer_score": null, "sibling_qid": "KOL-2025-11-2914-Q002", "sibling_text": "can dc be stepped up or down using transformer", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Why a transformer needs AC and cannot transform DC", "cross_family": false } ] }, { "qid": "MUM-2026-07-3692-Q004", "text": "What will happen if you connect dc power in transformer?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Transformer Theory", "tid": "MUM-2026-07-3692", "tray": "review", "candidates": [ { "answer_id": "XFMR-A-004", "score": 0.7071464657783508, "sibling_score": 0.7071464657783508, "answer_score": null, "sibling_qid": "MUM-2023-07-2739-Q005", "sibling_text": "transformer losses dc connected to transformer", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Transformer losses and loss reduction", "cross_family": false }, { "answer_id": "XFMR-THY-D-002", "score": 0.6624513268470764, "sibling_score": 0.6624513268470764, "answer_score": 0.49456616044044494, "sibling_qid": "KOL-2025-11-2914-Q002", "sibling_text": "can dc be stepped up or down using transformer", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Why a transformer needs AC and cannot transform DC", "cross_family": false }, { "answer_id": "XFMR-THY-B-003", "score": 0.612762987613678, "sibling_score": 0.612762987613678, "answer_score": null, "sibling_qid": "KOL-2026-01-2946-Q004", "sibling_text": "transformer short circuit", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Transformer short-circuit (impedance) test and copper-loss measurement", "cross_family": false } ] }, { "qid": "MUM-2026-07-3692-Q006", "text": "Reverse power trip how you do and limit?", "family": "Electrical - Generator & Alternator", "subtopic": "Reverse Power Trip", "tid": "MUM-2026-07-3692", "tray": "review", "candidates": [ { "answer_id": "RPT-A-001", "score": 0.6849395632743835, "sibling_score": 0.6849395632743835, "answer_score": null, "sibling_qid": "MUM-2023-07-2739-Q006", "sibling_text": "reverse power trip function", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Reverse power: what it is, why it happens, why we protect against it", "cross_family": false }, { "answer_id": "RPT-A-003", "score": 0.6513646245002747, "sibling_score": 0.6513646245002747, "answer_score": 0.42295976281166076, "sibling_qid": "KOL-2019-06-2298-Q001", "sibling_text": "reverse power trip why given operation", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "How the reverse-power trip works, and the sequence once reverse power develops", "cross_family": false }, { "answer_id": "RPT-B-003", "score": 0.6477605700492859, "sibling_score": 0.6477605700492859, "answer_score": null, "sibling_qid": "MUM-2023-01-1374-Q002", "sibling_text": "reverse power trip working setting told 10 but he didnt agreed", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Setting, trip value & time delay — diesel vs turbo-generator", "cross_family": false } ] }, { "qid": "MUM-2026-07-3692-Q007", "text": "Diff between purifier motor and steering gear motor?", "family": "Electrical - Motors & Starters", "subtopic": "", "tid": "MUM-2026-07-3692", "tray": "review", "candidates": [ { "answer_id": "SGM-ELEC-002", "score": 0.7120477557182312, "sibling_score": 0.7120477557182312, "answer_score": 0.46046086251735685, "sibling_qid": "CHE-2026-09-3935-Q016", "sibling_text": "differences between steering motor and normal motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What type of motor is the steering gear motor, how does it differ from other engine-room motors, and how do you order one?", "cross_family": false }, { "answer_id": "TG-MOTOR-001", "score": 0.6595129370689392, "sibling_score": 0.6595129370689392, "answer_score": null, "sibling_qid": "MUM-2026-06-3467-Q001", "sibling_text": "turning gear motor difference from other motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What type of motor is used for the turning gear, and what type of rotor does it have?", "cross_family": false }, { "answer_id": "SGM-ELEC-004", "score": 0.6122352480888367, "sibling_score": 0.6122352480888367, "answer_score": null, "sibling_qid": "KOL-2020-02-1517-Q005", "sibling_text": "steering gear motor taking more current reasons", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "The steering gear motor is taking high current or is overloaded — what are the reasons, apart from the electrical side?", "cross_family": false } ] }, { "qid": "MUM-2026-07-3693-Q001", "text": "Type of ship?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-07-3693", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8364351391792297, "sibling_score": 0.8364351391792297, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8018133640289307, "sibling_score": 0.8018133640289307, "answer_score": 0.5471183538436889, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8004559874534607, "sibling_score": 0.8004559874534607, "answer_score": 0.5215973019599914, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2026-07-3694-Q001", "text": "Type of ship ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-07-3694", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8364351391792297, "sibling_score": 0.8364351391792297, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8018133640289307, "sibling_score": 0.8018133640289307, "answer_score": 0.5471183538436889, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8004559874534607, "sibling_score": 0.8004559874534607, "answer_score": 0.5215973019599914, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2026-07-3694-Q003", "text": "Pre arrival port routines ?", "family": "Cargo Ops - Tankers", "subtopic": "Mast Riser / Deck Seal / P/V Valve", "tid": "MUM-2026-07-3694", "tray": "new", "candidates": [ { "answer_id": "COT-P03-05", "score": 0.6283262372016907, "sibling_score": 0.6283262372016907, "answer_score": 0.3487648174166679, "sibling_qid": "MUM-2024-12-0228-Q004", "sibling_text": "ship arriving port pre arrival checks on ig system and cop systems", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Alarms, trips and interlocks of the IG and cargo-pumping systems tested before discharge — and how, safely", "cross_family": false }, { "answer_id": "CPS-316-002", "score": 0.5690702795982361, "sibling_score": 0.5690702795982361, "answer_score": 0.3604514956474304, "sibling_qid": "MUM-2026-02-0757-Q003", "sibling_text": "arriving port for discharging what all u check", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "2/E checks and preparation before cargo discharge / cargo operations", "cross_family": false }, { "answer_id": "COT-P02-11", "score": 0.5458881855010986, "sibling_score": 0.5458881855010986, "answer_score": 0.36223071217536923, "sibling_qid": "MUM-2025-06-0330-Q001", "sibling_text": "wht are igg alarms n checks to be carried out prior entering port", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "As second engineer, state the checks and tests to carry out on the inert-gas system before starting it and before arrival for cargo discharge.", "cross_family": false } ] }, { "qid": "MUM-2026-07-3694-Q004", "text": "COPT and IG alarms and trips ?", "family": "Tanker - Cargo Systems", "subtopic": "IG and COPT Alarms / Trips", "tid": "MUM-2026-07-3694", "tray": "new", "candidates": [ { "answer_id": "IGAT-583-001", "score": 0.6389520168304443, "sibling_score": 0.6389520168304443, "answer_score": 0.43028475642204284, "sibling_qid": "KOL-2025-08-1016-Q005", "sibling_text": "ig working alarm trips", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "State all the alarms, trips and safety cut-outs provided on a tanker inert gas (IG) system.", "cross_family": true }, { "answer_id": "BLR-ALM-001", "score": 0.41336112320423124, "sibling_score": null, "answer_score": 0.41336112320423124, "sibling_qid": "", "sibling_text": "boiler alarms and trips list the alarms and trips on an auxiliary boiler panel a trip cuts the fuel and stops firing an alarm only warns know which is which solas ii 1 32 2 implemented for indian ships by the dgs cargo ship construction survey rules 1991 unattended oil fired boiler fuel shut off alarm at an attended position on low water level combustion air supply failure flame failure", "sibling_family": "", "via": "answer_title", "answer_title": "Boiler alarms and trips — list the alarms and trips on an auxiliary boiler panel", "cross_family": false }, { "answer_id": "OC-UV-TRIP-007", "score": 0.41278373152017594, "sibling_score": null, "answer_score": 0.41278373152017594, "sibling_qid": "", "sibling_text": "general overcurrent undervoltage trips alarms values and failure effects alarm before trip applies to developing overloads voltage sags and load management situations where warning is safe high set short circuit protection is trip first instantaneous to clear fault energy acb safety and uv trip the under voltage release is part of the acb s safe operation suite trips on dip loss and blocks dead bu", "sibling_family": "", "via": "answer_title", "answer_title": "General overcurrent / undervoltage trips — alarms, values and failure effects", "cross_family": false } ] }, { "qid": "MUM-2026-07-3694-Q006", "text": "⁠MLC explain , detainable deficiency , asked for rest hours specially ?", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2026-07-3694", "tray": "review", "candidates": [ { "answer_id": "MLC-WRH-B-002", "score": 0.6833246350288391, "sibling_score": 0.6833246350288391, "answer_score": 0.42583570182323455, "sibling_qid": "MUM-2026-03-0865-Q005", "sibling_text": "mlc requirement rest hour", "sibling_family": "MLC", "via": "sibling", "answer_title": "Work and rest hours under MLC — the criteria, the weekly limit, the intervals", "cross_family": false }, { "answer_id": "MLC-WRH-B-007", "score": 0.62331223487854, "sibling_score": 0.62331223487854, "answer_score": null, "sibling_qid": "MUM-2026-01-0701-Q002", "sibling_text": "detainable deficiency of mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false }, { "answer_id": "STCW-MAN-012", "score": 0.41317736506462094, "sibling_score": null, "answer_score": 0.41317736506462094, "sibling_qid": "", "sibling_text": "define fitness for duty as per stcw regulation viii 1 fitness for duty mandatory detail in code section a viii 1 minimum 10 hours of rest in any 24 hour period", "sibling_family": "", "via": "answer_title", "answer_title": "Define fitness for duty as per STCW.", "cross_family": false } ] }, { "qid": "MUM-2026-07-3695-Q003", "text": "In vertical pipes in ER how flanges tightened, whether nut or bolt on top and why?", "family": "Workshop & Welding", "subtopic": "", "tid": "MUM-2026-07-3695", "tray": "new", "candidates": [ { "answer_id": "PIPEFAB-006", "score": 0.5430864691734314, "sibling_score": 0.5430864691734314, "answer_score": 0.39144354462623593, "sibling_qid": "KOL-2021-04-3402-Q005", "sibling_text": "how will you weld a pipe to the flange", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "How do you weld a pipe to a flange? Explain with a sketch, and how you decide the electrode diameter and welding current", "cross_family": false }, { "answer_id": "PIPE-MAT-008", "score": 0.5018559098243713, "sibling_score": 0.5018559098243713, "answer_score": 0.4513230621814728, "sibling_qid": "KOL-2019-01-3204-Q005", "sibling_text": "flange difference between high pressure and low pressure pipe", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Identifying HP vs LP, and steam vs water, pipe flanges", "cross_family": false }, { "answer_id": "PIPEFAB-001", "score": 0.49349522590637207, "sibling_score": 0.49349522590637207, "answer_score": null, "sibling_qid": "KOL-2019-02-3213-Q008", "sibling_text": "how to prepare pipe having 90 bend n flanges", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "A damaged pipe has been removed — fabricate the new one: profiling an uneven/bent section and the instructions you give the 3/E or fitter", "cross_family": false } ] }, { "qid": "MUM-2026-07-3695-Q004", "text": "Framo pump type and min and max angle of swash plate?", "family": "Pumps - Centrifugal & PD", "subtopic": "Hele-Shaw / Axial Piston", "tid": "MUM-2026-07-3695", "tray": "review", "candidates": [ { "answer_id": "HSAP-583-A-010", "score": 0.6948882937431335, "sibling_score": 0.6948882937431335, "answer_score": 0.5492315471172332, "sibling_qid": "NOI-2026-09-0025-Q005", "sibling_text": "swash plate min max angle", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Maximum swash plate angle — and why it is limited", "cross_family": false }, { "answer_id": "HSAP-583-A-012", "score": 0.6192489266395569, "sibling_score": 0.6192489266395569, "answer_score": 0.47108828425407406, "sibling_qid": "MUM-2025-07-0343-Q010", "sibling_text": "dif b w hele shaw p p and swash plate pump", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Hele-Shaw against swash plate: radial and axial piston pumps compared", "cross_family": false }, { "answer_id": "HSAP-B-002", "score": 0.5980621576309204, "sibling_score": 0.5980621576309204, "answer_score": null, "sibling_qid": "MUM-2023-01-2159-Q001", "sibling_text": "what is hele shaw pump how is pump stroke changed and where is it used swash plate pump and what is difference between both", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Hele-Shaw versus swash-plate — the real differences, suction and discharge in each, and the bent-axis cousin", "cross_family": false } ] }, { "qid": "MUM-2026-07-3695-Q005", "text": "AE connecting rod why oblique cut?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Connecting Rod & Bolts", "tid": "MUM-2026-07-3695", "tray": "review", "candidates": [ { "answer_id": "CRB-008", "score": 0.7171979546546936, "sibling_score": 0.7171979546546936, "answer_score": 0.6018853724002838, "sibling_qid": "KOC-2022-05-0961-Q006", "sibling_text": "need of serration and oblique cut in connecting rod", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Why is an oblique cut provided at the connecting rod big end?", "cross_family": false }, { "answer_id": "CRB-001", "score": 0.6219223141670227, "sibling_score": 0.6219223141670227, "answer_score": null, "sibling_qid": "MUM-2026-06-3416-Q005", "sibling_text": "connecting rod ovality", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What checks are carried out on the connecting rod at decarbonisation? Explain the ovality and trueness checks — how many readings, at which positions, with what instrument, and the permissible limit.", "cross_family": false }, { "answer_id": "AE-CRP-006", "score": 0.6217997670173645, "sibling_score": 0.6217997670173645, "answer_score": 0.5798886060714722, "sibling_qid": "KOL-2023-10-4028-Q005", "sibling_text": "why oblique cut in ae con rod and why not in me", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE connecting-rod design — section, serrations, oblique cut, whip loading", "cross_family": true } ] }, { "qid": "MUM-2026-07-3696-Q001", "text": "Ship type after class 4 ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-07-3696", "tray": "new", "candidates": [ { "answer_id": "LLST-AB-001", "score": 0.6457864046096802, "sibling_score": 0.6457864046096802, "answer_score": 0.41761537492275236, "sibling_qid": "KOC-2026-09-2198-Q001", "sibling_text": "type a and b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.6390530467033386, "sibling_score": 0.6390530467033386, "answer_score": null, "sibling_qid": "MUM-2026-02-1280-Q001", "sibling_text": "type of ship done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.5952389240264893, "sibling_score": 0.5952389240264893, "answer_score": null, "sibling_qid": "CHE-2026-02-0478-Q004", "sibling_text": "this type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false } ] }, { "qid": "MUM-2026-07-3696-Q002", "text": "Framo purging complete and cross ?", "family": "Cargo Ops - Tankers", "subtopic": "Cargo Pump (Framo / Eductor)", "tid": "MUM-2026-07-3696", "tray": "new", "candidates": [ { "answer_id": "CPFE-583-001", "score": 0.518245279788971, "sibling_score": 0.518245279788971, "answer_score": null, "sibling_qid": "MUM-2026-09-3946-Q010", "sibling_text": "framo working complete detail", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "The Framo system — what it is, how it works, and the driving mechanism", "cross_family": false }, { "answer_id": "CPFE-583-012", "score": 0.4612700939178467, "sibling_score": 0.4612700939178467, "answer_score": null, "sibling_qid": "KOC-2022-01-1777-Q010", "sibling_text": "framo seal arrangement cleared both functions", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Seal arrangement, cofferdam, and how leakage is detected", "cross_family": false }, { "answer_id": "COT-P03-05", "score": 0.4462084174156189, "sibling_score": 0.4462084174156189, "answer_score": null, "sibling_qid": "MUM-2025-07-2811-Q001", "sibling_text": "preparations for discharging on framo and igg", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Alarms, trips and interlocks of the IG and cargo-pumping systems tested before discharge — and how, safely", "cross_family": false } ] }, { "qid": "MUM-2026-07-3696-Q006", "text": "AE starting on air but not on fuel. Why.?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE Governor", "tid": "MUM-2026-07-3696", "tray": "review", "candidates": [ { "answer_id": "ME-NOSTART-001", "score": 0.8039864897727966, "sibling_score": 0.8039864897727966, "answer_score": 0.5979495942592621, "sibling_qid": "MUM-2026-06-3662-Q003", "sibling_text": "ae starting on air not on fuel reason and actions", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Starts / turns on air but will not start on fuel — causes, checks and rectification", "cross_family": false }, { "answer_id": "RSTA-563-002", "score": 0.7211365103721619, "sibling_score": 0.7211365103721619, "answer_score": 0.6163947165012359, "sibling_qid": "KOL-2024-02-4037-Q008", "sibling_text": "engine starting on air not on fuel reasons", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "She runs on starting air but won't fire on fuel — reasons and your action", "cross_family": true }, { "answer_id": "AEDEC-291-008", "score": 0.670294463634491, "sibling_score": 0.670294463634491, "answer_score": null, "sibling_qid": "KOL-2022-01-3514-Q003", "sibling_text": "after ae complete overhaul ae not starting on air what all to check", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "8. Post-decarb abnormal running — overspeed, RPM, air-start, LO", "cross_family": false } ] }, { "qid": "MUM-2026-07-3696-Q008", "text": "How to come know that the plate type heat exchanger got chocked or fouled on sea water side or freshwater side by just looking at the heat exchanger?", "family": "Heat Exchangers & Coolers", "subtopic": "Plate Type", "tid": "MUM-2026-07-3696", "tray": "review", "candidates": [ { "answer_id": "PTHE-003", "score": 0.6820917129516602, "sibling_score": 0.6820917129516602, "answer_score": null, "sibling_qid": "MUM-2022-12-1037-Q019", "sibling_text": "checks on plate typeheat exchanger while opening", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Opening, cleaning, overhaul, plate alignment and reassembly", "cross_family": false }, { "answer_id": "STHX-007", "score": 0.6717427968978882, "sibling_score": 0.6717427968978882, "answer_score": 0.5139946192502975, "sibling_qid": "NOI-2026-09-0008-Q009", "sibling_text": "sw cooler is sw cooled and you have suspecteed cooler to be fouled how will you know which side is fouled", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "STHX-07 — Performance, efficiency, choking and poor heat transfer", "cross_family": false }, { "answer_id": "PTHE-004", "score": 0.6575197577476501, "sibling_score": 0.6575197577476501, "answer_score": 0.4833526074886322, "sibling_qid": "MUM-2025-09-0979-Q016", "sibling_text": "how to know leakage from plate type heat exchanger", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Leak detection: external vs internal, and finding the plate", "cross_family": false } ] }, { "qid": "MUM-2026-07-3696-Q009", "text": "Why resilient chocks on AE ?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE Resilient Chock", "tid": "MUM-2026-07-3696", "tray": "new", "candidates": [ { "answer_id": "AEDEC-291-003", "score": 0.3652229309082031, "sibling_score": 0.3652229309082031, "answer_score": null, "sibling_qid": "KOL-2019-06-3246-Q004", "sibling_text": "starting checks as 2e after ae decarb", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "3. Pre-start checks after decarb / recommissioning", "cross_family": false }, { "answer_id": "EMD-MEAE-001", "score": 0.35638874769210815, "sibling_score": 0.35638874769210815, "answer_score": 0.2775092929601669, "sibling_qid": "MUM-2025-10-2433-Q002", "sibling_text": "difference between me and ae foundation cross question on chocks and resilient mounting", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "1. ME vs AE foundation — rigid chocking against resilient mounting", "cross_family": true }, { "answer_id": "AEDEC-291-001", "score": 0.34427258372306824, "sibling_score": 0.34427258372306824, "answer_score": null, "sibling_qid": "CHE-2026-03-0486-Q009", "sibling_text": "maintenance done on ae", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "1. AE decarb / overhaul — preparation and full procedure", "cross_family": false } ] }, { "qid": "MUM-2026-07-3697-Q003", "text": " Ex i and Ex d where used onboard ship?", "family": "Electrical - Cables & Insulation", "subtopic": "", "tid": "MUM-2026-07-3697", "tray": "new", "candidates": [ { "answer_id": "EXD-EXI-A-002", "score": 0.6262794733047485, "sibling_score": 0.6262794733047485, "answer_score": null, "sibling_qid": "KOC-2022-03-1174-Q006", "sibling_text": "exd explain where found in ship", "sibling_family": "", "via": "sibling", "answer_title": "Ex d (flameproof / explosion-proof) — construction, shipboard applications and maintenance", "cross_family": false }, { "answer_id": "EXD-EXI-A-001", "score": 0.5878715515136719, "sibling_score": 0.5878715515136719, "answer_score": null, "sibling_qid": "KOL-2025-12-2942-Q001", "sibling_text": "ex d and ex i", "sibling_family": "", "via": "sibling", "answer_title": "Ex i (intrinsically safe) vs Ex d (flameproof / explosion-proof) — the difference", "cross_family": false }, { "answer_id": "HAZ-EX-B-001", "score": 0.5792703628540039, "sibling_score": 0.5792703628540039, "answer_score": null, "sibling_qid": "MUM-2026-03-2019-Q002", "sibling_text": "ex i and ex d", "sibling_family": "", "via": "sibling", "answer_title": "Intrinsically safe (Ex i) equipment — what it is, how it works, where it is used, how you identify it", "cross_family": false } ] }, { "qid": "MUM-2026-07-3698-Q001", "text": "Difference between earth and ground ?", "family": "Electrical - Protection & Relays", "subtopic": "", "tid": "MUM-2026-07-3698", "tray": "new", "candidates": [ { "answer_id": "EARTH-NER-A-002", "score": 0.5229419469833374, "sibling_score": 0.5229419469833374, "answer_score": 0.44730186462402344, "sibling_qid": "KOC-2024-11-1440-Q002", "sibling_text": "difference between earth and neutral", "sibling_family": "", "via": "sibling", "answer_title": "Earth, ground and neutral — and the difference between earth and neutral", "cross_family": false }, { "answer_id": "EARTH-NEU-02A-002", "score": 0.5227700471878052, "sibling_score": 0.5227700471878052, "answer_score": null, "sibling_qid": "KOC-2026-09-2203-Q002", "sibling_text": "difference between earth and neutral", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Insulated neutral vs earthed neutral — how each behaves, where each is used, which is safer", "cross_family": true }, { "answer_id": "EF-SHAFT-ERES-P05-001", "score": 0.49314630031585693, "sibling_score": 0.49314630031585693, "answer_score": 0.3331437289714813, "sibling_qid": "MUM-2024-08-1452-Q003", "sibling_text": "earth fault and ner", "sibling_family": "", "via": "sibling", "answer_title": "Earth fault detection, indication and location", "cross_family": false } ] }, { "qid": "MUM-2026-07-3698-Q002", "text": "How test 15ppm how u will come to know alarm only at 15 not 14 ppm?", "family": "MARPOL - Annex I (Oil)", "subtopic": "", "tid": "MUM-2026-07-3698", "tray": "review", "candidates": [ { "answer_id": "OWS-15PPM-003", "score": 0.6983128786087036, "sibling_score": 0.6983128786087036, "answer_score": 0.5184339463710784, "sibling_qid": "CHE-2025-08-0055-Q004", "sibling_text": "how the 15 ppm equipment measuring ppm", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "OWS-ORB-002", "score": 0.6555054783821106, "sibling_score": 0.6555054783821106, "answer_score": null, "sibling_qid": "MUM-2023-11-0148-Q003", "sibling_text": "15 ppm not working how will you report control actions as 2e", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "2. OWS / 15 ppm alarm not working — reporting and control actions as 2/E", "cross_family": false }, { "answer_id": "OWS-15PPM-002", "score": 0.5964227318763733, "sibling_score": 0.5964227318763733, "answer_score": null, "sibling_qid": "CHE-2024-10-0009-Q007", "sibling_text": "annex 1 discharge criterion for engine room bilges operation of ows testing of 15 ppm alarm", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "MUM-2026-07-3698-Q005", "text": "How to test standby Lub oil pump ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "LO Test / Analysis", "tid": "MUM-2026-07-3698", "tray": "review", "candidates": [ { "answer_id": "STR-DEC-A-001", "score": 0.7566124200820923, "sibling_score": 0.7566124200820923, "answer_score": null, "sibling_qid": "MUM-2025-05-1522-Q007", "sibling_text": "how to test standby pump starting for me lub oil pump when main engine is running", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": true }, { "answer_id": "OIL-FUEL-TEST-001", "score": 0.6498452425003052, "sibling_score": 0.6498452425003052, "answer_score": null, "sibling_qid": "MUM-2026-06-3536-Q005", "sibling_text": "lub oil tests onboard", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What lube-oil tests are carried out onboard ship?", "cross_family": false }, { "answer_id": "LO-TEST-P01-001", "score": 0.6497193574905396, "sibling_score": 0.6497193574905396, "answer_score": null, "sibling_qid": "CHE-2026-05-0556-Q001", "sibling_text": "1 lub oil test onboard why taking while running", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Onboard lube-oil tests and the viscosity test", "cross_family": false } ] }, { "qid": "MUM-2026-07-3699-Q001", "text": "What type of ship sailed ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-07-3699", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.812366783618927, "sibling_score": 0.812366783618927, "answer_score": null, "sibling_qid": "CHE-2026-02-0478-Q004", "sibling_text": "this type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7859904766082764, "sibling_score": 0.7859904766082764, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.46793303489685056, "sibling_score": null, "answer_score": 0.46793303489685056, "sibling_qid": "", "sibling_text": "type a and type b ships how form and cargo set the freeboard", "sibling_family": "", "via": "answer_title", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "MUM-2026-07-3699-Q006", "text": "Squirrel cage motor working ?", "family": "Electrical - Motors & Starters", "subtopic": "Rotor / Stator", "tid": "MUM-2026-07-3699", "tray": "review", "candidates": [ { "answer_id": "ROT-STAT-A-001", "score": 0.841536819934845, "sibling_score": 0.841536819934845, "answer_score": null, "sibling_qid": "MUM-2026-04-2096-Q005", "sibling_text": "squirrel cage motor working", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Squirrel-cage rotor — construction, parts and materials", "cross_family": false }, { "answer_id": "TG-MOTOR-001", "score": 0.534814664721489, "sibling_score": null, "answer_score": 0.534814664721489, "sibling_qid": "", "sibling_text": "what type of motor is used for the turning gear and what type of rotor does it have three phase ac induction motor with a squirrel cage cage rotor bars and end rings no slip rings or brushes rugged sealed low maintenance right for an intermittently used often idle machine", "sibling_family": "", "via": "answer_title", "answer_title": "What type of motor is used for the turning gear, and what type of rotor does it have?", "cross_family": false }, { "answer_id": "IM-PWC-001", "score": 0.5204310178756714, "sibling_score": null, "answer_score": 0.5204310178756714, "sibling_qid": "", "sibling_text": "induction motor principle working and basic construction three phase stator winding sets up arotating magnetic fieldturning at synchronous speed ns 120 f prpm field cuts the rotor conductors induced emf induced rotor current rotor is a closed loop shorted cage", "sibling_family": "", "via": "answer_title", "answer_title": "Induction motor — principle, working and basic construction", "cross_family": false } ] }, { "qid": "MUM-2026-07-3700-Q005", "text": "Transformer, losses, tests to confirm losses?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Transformer Theory", "tid": "MUM-2026-07-3700", "tray": "review", "candidates": [ { "answer_id": "XFMR-A-004", "score": 0.7573009133338928, "sibling_score": 0.7573009133338928, "answer_score": 0.5116629630327224, "sibling_qid": "MUM-2026-04-2097-Q001S4", "sibling_text": "transformer losses tests to confirm losses 6", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Transformer losses and loss reduction", "cross_family": false }, { "answer_id": "XFMR-THY-C-002", "score": 0.7047120332717896, "sibling_score": 0.7047120332717896, "answer_score": 0.49118606448173524, "sibling_qid": "KOC-2024-12-1452-Q005", "sibling_text": "open circuit short circuit test for transformers what are losses in transformers", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Open-circuit and short-circuit tests on a transformer — how each is done, which side, and what each gives", "cross_family": false }, { "answer_id": "XFMR-THY-B-003", "score": 0.6693552732467651, "sibling_score": 0.6693552732467651, "answer_score": 0.47430731952190397, "sibling_qid": "MUM-2023-08-1398-Q007", "sibling_text": "transformer losses and how copper loss calculated short circuit test", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Transformer short-circuit (impedance) test and copper-loss measurement", "cross_family": false } ] }, { "qid": "MUM-2026-07-3700-Q007", "text": "How to step up 12v dc to 24v dc?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Step Up / Step Down", "tid": "MUM-2026-07-3700", "tray": "review", "candidates": [ { "answer_id": "XFMR-THY-D-002", "score": 0.7630260586738586, "sibling_score": 0.7630260586738586, "answer_score": null, "sibling_qid": "MUM-2026-04-2101-Q002", "sibling_text": "how to step up 12v dc to 24v dc", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Why a transformer needs AC and cannot transform DC", "cross_family": false }, { "answer_id": "EPC-P01-07", "score": 0.6058257818222046, "sibling_score": 0.6058257818222046, "answer_score": 0.42570032775402067, "sibling_qid": "KOL-2024-03-2701-Q001", "sibling_text": "voltage doubler", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Voltage doubler — construction, working, use in a circuit, and limitations", "cross_family": false }, { "answer_id": "BDC-P02-04", "score": 0.5807344913482666, "sibling_score": 0.5807344913482666, "answer_score": 0.4282255709171295, "sibling_qid": "CHE-2026-04-0383-Q015", "sibling_text": "how do get it 24 dc", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "The ship's 24 V DC system — how it is produced, why DC, and what it supplies", "cross_family": true } ] }, { "qid": "MUM-2026-07-3701-Q004", "text": "how u will lock the stock?", "family": "Steering Gear & Hydraulics", "subtopic": "", "tid": "MUM-2026-07-3701", "tray": "new", "candidates": [ { "answer_id": "METAL-LOCK-002", "score": 0.5265733003616333, "sibling_score": 0.5265733003616333, "answer_score": 0.33548827916383744, "sibling_qid": "KOL-2019-11-3291-Q003", "sibling_text": "metal locking procedure", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Metal locking procedure: pockets, keys, stitching pins", "cross_family": true }, { "answer_id": "METAL-LOCK-001", "score": 0.521408200263977, "sibling_score": 0.521408200263977, "answer_score": null, "sibling_qid": "KOL-2026-01-3909-Q004", "sibling_text": "metal locking explain", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "What is metal locking / stitching, why use it, materials & benefits", "cross_family": true }, { "answer_id": "ANCHR-B-004", "score": 0.49440568685531616, "sibling_score": 0.49440568685531616, "answer_score": null, "sibling_qid": "MUM-2026-09-3947-Q007", "sibling_text": "chain locker arrangements", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Chain locker, spurling pipe & bitter-end securing", "cross_family": true } ] }, { "qid": "MUM-2026-07-3701-Q005", "text": "how u change bearing of steering gear?", "family": "Steering Gear & Hydraulics", "subtopic": "Steering Gear System", "tid": "MUM-2026-07-3701", "tray": "review", "candidates": [ { "answer_id": "SGRS-328-002", "score": 0.7201352119445801, "sibling_score": 0.7201352119445801, "answer_score": null, "sibling_qid": "MUM-2026-06-3627-Q003", "sibling_text": "how to change seal on steering gear", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "What type of seal is used for steering gear ram sealing?", "cross_family": false }, { "answer_id": "SGRS-328-001", "score": 0.6990132927894592, "sibling_score": 0.6990132927894592, "answer_score": 0.5021816611289978, "sibling_qid": "MUM-2026-07-3769-Q012", "sibling_text": "how to change ram seal in steering gear", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "How do you change or replace a steering gear ram seal in place?", "cross_family": false }, { "answer_id": "RAP-SLIDE-002", "score": 0.6682421565055847, "sibling_score": 0.6682421565055847, "answer_score": null, "sibling_qid": "KOL-2025-07-1990-Q002", "sibling_text": "steering gear rampson slide parts and what type of bearing", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Rapson slide arrangement, main parts, swivel block / fork and bearing used", "cross_family": false } ] }, { "qid": "MUM-2026-07-3701-Q009", "text": "properties of lo flash point low or high?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Flash/Fire Point", "tid": "MUM-2026-07-3701", "tray": "new", "candidates": [ { "answer_id": "BDN-001-002", "score": 0.610307514667511, "sibling_score": 0.610307514667511, "answer_score": 0.43269767761230465, "sibling_qid": "MUM-2026-06-3472-Q007", "sibling_text": "flash point", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Latest amendment — the flashpoint entry", "cross_family": false }, { "answer_id": "FLPT-579-002", "score": 0.60577392578125, "sibling_score": 0.60577392578125, "answer_score": null, "sibling_qid": "MUM-2025-07-1145-Q007", "sibling_text": "what do you mean by flash point how flash point is tested", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How flash point is tested on board", "cross_family": false }, { "answer_id": "FQCC-583-B-004", "score": 0.5738316178321838, "sibling_score": 0.5738316178321838, "answer_score": null, "sibling_qid": "MUM-2026-05-3163-Q006", "sibling_text": "what is pour point and floc point in lo", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Cloud point, pour point, CFPP and floc point — and the filter choking on the new fuel", "cross_family": false } ] }, { "qid": "MUM-2026-07-3701-Q010", "text": "what is wear band in piston ?", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "MUM-2026-07-3701", "tray": "new", "candidates": [ { "answer_id": "PIST-CSI-C-001", "score": 0.5886673331260681, "sibling_score": 0.5886673331260681, "answer_score": null, "sibling_qid": "KOL-2025-07-1812-Q011", "sibling_text": "piston is wear down your plan to recondition it onboard as 2e", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston crown damage — pitting, burning, cracks and reconditioning", "cross_family": false }, { "answer_id": "PRING-CLR-A-002", "score": 0.5525985360145569, "sibling_score": 0.5525985360145569, "answer_score": null, "sibling_qid": "CHE-2026-03-0490-Q006", "sibling_text": "ring width of piston ring importance func 4b ext t mohan int po", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston-ring clearances and calibration — butt, axial, radial, wear limits", "cross_family": false }, { "answer_id": "PRING-B-005", "score": 0.5360619425773621, "sibling_score": 0.5360619425773621, "answer_score": null, "sibling_qid": "MUM-2023-06-2736-Q001S6", "sibling_text": "man b w piston ring new circular", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Running-in & latest developments", "cross_family": false } ] }, { "qid": "MUM-2026-07-3702-Q002", "text": "DIESEL CYCLE ?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Miller / Otto / Diesel Cycle", "tid": "MUM-2026-07-3702", "tray": "review", "candidates": [ { "answer_id": "CPP-TCV-05", "score": 0.8130059242248535, "sibling_score": 0.8130059242248535, "answer_score": 0.5741248220205307, "sibling_qid": "MUM-2026-01-1239-Q008", "sibling_text": "what is diesel cycle", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Otto, Diesel and dual cycles", "cross_family": false }, { "answer_id": "MEGI-304-004", "score": 0.7058545351028442, "sibling_score": 0.7058545351028442, "answer_score": null, "sibling_qid": "KOL-2018-03-3126-Q004", "sibling_text": "dfd engines why diesel is used", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "4. Pilot fuel / pilot injection — purpose and why on every firing in gas mode", "cross_family": false }, { "answer_id": "ENG-DERATE-002", "score": 0.6892251968383789, "sibling_score": 0.6892251968383789, "answer_score": null, "sibling_qid": "MUM-2026-06-3396-Q012", "sibling_text": "derating and derating if diesel engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "How is a main engine temporarily derated and later restored, without propeller changes?", "cross_family": false } ] }, { "qid": "MUM-2026-07-3702-Q004", "text": "GI VS GA ENGINE ?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-07-3702", "tray": "new", "candidates": [ { "answer_id": "MEGI-304-002", "score": 0.6185100078582764, "sibling_score": 0.6185100078582764, "answer_score": 0.3452603161334991, "sibling_qid": "KOC-2025-07-1043-Q002", "sibling_text": "explain gi and ga engines", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "2. ME-GI / ME-GA / ME-G and recent dual-fuel engine advancements", "cross_family": true }, { "answer_id": "EGTP-P02-005", "score": 0.43772876262664795, "sibling_score": 0.43772876262664795, "answer_score": null, "sibling_qid": "MUM-2026-06-3500-Q002", "sibling_text": "mc vs me engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "MC / MC-C / ME-C and Electronically Controlled Engines", "cross_family": false }, { "answer_id": "MCC-MEB-P02-003", "score": 0.4078977704048157, "sibling_score": 0.4078977704048157, "answer_score": null, "sibling_qid": "MUM-2022-08-1019-Q001", "sibling_text": "what main difference in me engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Conventional MC / MC-C versus electronic ME — the practical operating differences", "cross_family": true } ] }, { "qid": "MUM-2026-07-3702-Q005", "text": "TYPE OF STERN TUBE ?", "family": "Drydock & Underwater Surveys", "subtopic": "Stern Tube / Tail Shaft", "tid": "MUM-2026-07-3702", "tray": "review", "candidates": [ { "answer_id": "STS-P02-003", "score": 0.7485630512237549, "sibling_score": 0.7485630512237549, "answer_score": 0.470481938123703, "sibling_qid": "MUM-2025-03-2273-Q009", "sibling_text": "types of stern tube", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "STS-P02-03 - Stern tube arrangement, fitting in hull and shaft support", "cross_family": false }, { "answer_id": "STS-P02-004", "score": 0.6818446516990662, "sibling_score": 0.6818446516990662, "answer_score": null, "sibling_qid": "MUM-2023-06-2735-Q004", "sibling_text": "type of lagging used in stern tube", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "STS-P02-04 - Tail shaft design, bearing materials and bending support", "cross_family": false }, { "answer_id": "STT-BRG-002", "score": 0.5460340440273285, "sibling_score": null, "answer_score": 0.5460340440273285, "sibling_qid": "", "sibling_text": "1 stern tube arrangement function materials and types", "sibling_family": "", "via": "answer_title", "answer_title": "1. Stern tube — arrangement, function, materials and types", "cross_family": false } ] }, { "qid": "MUM-2026-07-3702-Q011", "text": "Windlass oil seal renewal ?", "family": "Auxiliary Equipment", "subtopic": "Windlass / Winch", "tid": "MUM-2026-07-3702", "tray": "review", "candidates": [ { "answer_id": "WIND-WNCH-010", "score": 0.7322713732719421, "sibling_score": 0.7322713732719421, "answer_score": null, "sibling_qid": "MUM-2024-12-2263-Q001", "sibling_text": "how will you change the oil seal in windlass clueless", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Survey prep, checks, routines and maintenance", "cross_family": false }, { "answer_id": "WBRT-005", "score": 0.6082044243812561, "sibling_score": 0.6082044243812561, "answer_score": null, "sibling_qid": "KOL-2021-08-1621-Q010", "sibling_text": "windlass brake maintenance", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Brake maintenance: lining, drum, pad fitting and adjustment", "cross_family": false }, { "answer_id": "WIND-WNCH-007", "score": 0.6057196855545044, "sibling_score": 0.6057196855545044, "answer_score": null, "sibling_qid": "KOC-2022-01-1773-Q002", "sibling_text": "winch brake liner renewal", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Brake lining renewal", "cross_family": false } ] }, { "qid": "MUM-2026-07-3703-Q001", "text": "ER crane safeties and how to carry out continuity test on 50m long cable ?", "family": "Electrical - Motors & Starters", "subtopic": "Continuity Test", "tid": "MUM-2026-07-3703", "tray": "review", "candidates": [ { "answer_id": "CONT-317-004", "score": 0.6813895106315613, "sibling_score": 0.6813895106315613, "answer_score": 0.5663652330636978, "sibling_qid": "CHE-2025-12-0321-Q001", "sibling_text": "continuity test of long cable", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Continuity of a long cable or thick wire", "cross_family": false }, { "answer_id": "CONT-317-001", "score": 0.5873897075653076, "sibling_score": 0.5873897075653076, "answer_score": null, "sibling_qid": "MUM-2024-02-1425-Q002", "sibling_text": "how you do continuity test", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Continuity test of a motor winding — what it is and how it is done", "cross_family": false }, { "answer_id": "IRT-C-010", "score": 0.5752465128898621, "sibling_score": 0.5752465128898621, "answer_score": null, "sibling_qid": "MUM-2025-11-1770-Q002", "sibling_text": "long cable insulation test", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "IR of cables and heaters (non-motor)", "cross_family": false } ] }, { "qid": "MUM-2026-07-3703-Q003", "text": "How to check air gap and which place it will be max?", "family": "Electrical - Motors & Starters", "subtopic": "Air Gap", "tid": "MUM-2026-07-3703", "tray": "new", "candidates": [ { "answer_id": "AIR-GAP-003", "score": 0.579980194568634, "sibling_score": 0.579980194568634, "answer_score": null, "sibling_qid": "MUM-2026-01-1859-Q006", "sibling_text": "what if air gap is less", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "AG-3 — Effects, causes, indications and correction: high, low, uneven, contaminated gap", "cross_family": false }, { "answer_id": "AIR-GAP-001", "score": 0.5575317740440369, "sibling_score": 0.5575317740440369, "answer_score": 0.3119225263595581, "sibling_qid": "CHE-2026-09-3918-Q008", "sibling_text": "how much air gap is accepted", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "AG-1 — The air gap: what it is and why it matters", "cross_family": false }, { "answer_id": "AIR-GAP-002", "score": 0.5350454449653625, "sibling_score": 0.5350454449653625, "answer_score": 0.3277045488357544, "sibling_qid": "MUM-2026-01-1859-Q005", "sibling_text": "how to check air gap", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "AG-2 — Checking and measuring the air gap", "cross_family": false } ] }, { "qid": "MUM-2026-07-3704-Q002", "text": "Foam proportionate valve ?", "family": "SOLAS - Fire Safety", "subtopic": "Foam System / Monitor", "tid": "MUM-2026-07-3704", "tray": "review", "candidates": [ { "answer_id": "FOAM-SYS-P04-002", "score": 0.7694208025932312, "sibling_score": 0.7694208025932312, "answer_score": 0.5460410356521607, "sibling_qid": "MUM-2023-09-0128-Q004", "sibling_text": "working of foam proportionate valve", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "1. Foam proportioner — how it works", "cross_family": false }, { "answer_id": "FOAM-032-P03-001", "score": 0.6757495999336243, "sibling_score": 0.6757495999336243, "answer_score": 0.4535105794668198, "sibling_qid": "KOC-2024-07-0360-Q002", "sibling_text": "fixed foam high expansion for engine room diagram nozzle diagram explanation x question explanation for diaphragm control valve working sw line and foam proportionator tank return line", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Engine-room high-expansion fixed foam system — draw and explain", "cross_family": false }, { "answer_id": "FOAM-P02-001", "score": 0.6753858923912048, "sibling_score": 0.6753858923912048, "answer_score": null, "sibling_qid": "KOL-2019-07-0298-Q002", "sibling_text": "proportionator in deck foam fire fighting stem", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Draw and explain the fixed deck foam firefighting system used on a tanker.", "cross_family": false } ] }, { "qid": "MUM-2026-07-3704-Q003", "text": "On what basis load line is given ?", "family": "Load Line Convention", "subtopic": "", "tid": "MUM-2026-07-3704", "tray": "new", "candidates": [ { "answer_id": "LL-CONV-P06-002", "score": 0.6346028447151184, "sibling_score": 0.6346028447151184, "answer_score": 0.41520696282386776, "sibling_qid": "MUM-2026-06-3604-Q004", "sibling_text": "type of load line", "sibling_family": "Load Line Convention", "via": "sibling", "answer_title": "LLC-P06-02 - Types of load lines: standard, seasonal, timber, WNA and multiple load lines", "cross_family": false }, { "answer_id": "LLC-SUR-POA-3-FINAL-001", "score": 0.6092112064361572, "sibling_score": 0.6092112064361572, "answer_score": null, "sibling_qid": "KOL-2021-03-0479-Q001", "sibling_text": "conditions for assigning load line", "sibling_family": "", "via": "sibling", "answer_title": "Conditions of assignment of freeboard", "cross_family": false }, { "answer_id": "LL-CONV-P06-004", "score": 0.6055096387863159, "sibling_score": 0.6055096387863159, "answer_score": 0.39961107969284054, "sibling_qid": "MUM-2026-06-3476-Q002", "sibling_text": "what is load line", "sibling_family": "Load Line Convention", "via": "sibling", "answer_title": "LLC-P06-04 - General load-line requirement, marks, stability link and overloading consequences", "cross_family": false } ] }, { "qid": "MUM-2026-07-3704-Q005", "text": "Combination carrier under what category?", "family": "Load Line Convention", "subtopic": "", "tid": "MUM-2026-07-3704", "tray": "new", "candidates": [ { "answer_id": "LL-CONV-P06-001", "score": 0.49635422229766846, "sibling_score": 0.49635422229766846, "answer_score": null, "sibling_qid": "MUM-2026-07-3704-Q004", "sibling_text": "type a and type b category under load line convention", "sibling_family": "Load Line Convention", "via": "sibling", "answer_title": "LLC-P06-01 - Ship categories and freeboard differences: Type A, Type B and practical ship cases", "cross_family": false }, { "answer_id": "SOLAS12-BC-A-001", "score": 0.486978143453598, "sibling_score": 0.486978143453598, "answer_score": 0.3955049946904182, "sibling_qid": "NOI-2026-09-0010-Q001", "sibling_text": "type of ship car carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "SOLAS definition and scope of a bulk carrier", "cross_family": true }, { "answer_id": "IBC-BCH-B-002", "score": 0.47146883606910706, "sibling_score": 0.47146883606910706, "answer_score": null, "sibling_qid": "MUM-2026-05-3156-Q003", "sibling_text": "types of cargo x y z and os", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Chemical cargo categories — MARPOL Annex II and IBC Chapters 17 & 18", "cross_family": true } ] }, { "qid": "MUM-2026-07-3704-Q006", "text": "Tank to wake ?", "family": "Shafting, Propeller & Rudder", "subtopic": "Stern Tube / Shafting / Propeller / Rudder", "tid": "MUM-2026-07-3704", "tray": "new", "candidates": [ { "answer_id": "SPR-STERN-005", "score": 0.6274064183235168, "sibling_score": 0.6274064183235168, "answer_score": null, "sibling_qid": "KOC-2021-11-0032-Q002", "sibling_text": "wake", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Slip, wake, wake speed & speed of advance", "cross_family": false }, { "answer_id": "GFI-572-004", "score": 0.5277054309844971, "sibling_score": 0.5277054309844971, "answer_score": null, "sibling_qid": "CHE-2026-04-0134-Q009", "sibling_text": "what is well to wake", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "MEPC 83 GFI: well-to-wake, IMO Net-Zero Fund and remedial units", "cross_family": true }, { "answer_id": "FIRE-P02-03", "score": 0.5028484463691711, "sibling_score": 0.5028484463691711, "answer_score": null, "sibling_qid": "MUM-2025-11-0583-Q006", "sibling_text": "in midnight fw tank designated to hypermist empty your action", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist — low water level or empty FW tank contingency", "cross_family": true } ] }, { "qid": "MUM-2026-07-3704-Q009", "text": "Transmission efficiency ?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Scavenging / Scavenge Fire", "tid": "MUM-2026-07-3704", "tray": "new", "candidates": [ { "answer_id": "ETP-344-P01-005", "score": 0.6422592997550964, "sibling_score": 0.6422592997550964, "answer_score": 0.4442818880081177, "sibling_qid": "CHE-2026-02-0244-Q003", "sibling_text": "thermal efficiency", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Engine efficiency — thermal, mechanical, overall", "cross_family": false }, { "answer_id": "SCAV-323-P02-003", "score": 0.6140700578689575, "sibling_score": 0.6140700578689575, "answer_score": null, "sibling_qid": "CHE-2026-02-0244-Q002", "sibling_text": "scav efficiency", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Scavenging efficiency: meaning, significance and measurement", "cross_family": false }, { "answer_id": "AIRCOMP-PERF-001", "score": 0.6101702451705933, "sibling_score": 0.6101702451705933, "answer_score": null, "sibling_qid": "MUM-2026-04-2681-Q005", "sibling_text": "mac efficiency check", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "How do you take or verify the performance of a main air compressor?", "cross_family": true } ] }, { "qid": "MUM-2026-07-3704-Q015", "text": "Why megger is used over multimeter?", "family": "Electrical - Protection & Relays", "subtopic": "MEGGER", "tid": "MUM-2026-07-3704", "tray": "review", "candidates": [ { "answer_id": "IR-TEST-D-004", "score": 0.6642398238182068, "sibling_score": 0.6642398238182068, "answer_score": 0.59544557929039, "sibling_qid": "MUM-2026-04-2122-Q006", "sibling_text": "megger vs multimeter", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Megger versus multimeter — why a megger, why DC, why not a meter", "cross_family": false }, { "answer_id": "IRT-C-001", "score": 0.6403964161872864, "sibling_score": 0.6403964161872864, "answer_score": 0.49969568252563473, "sibling_qid": "KOC-2026-09-2190-Q007", "sibling_text": "megger working", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "How a megger works — construction & principle", "cross_family": false }, { "answer_id": "IR-TEST-B-004", "score": 0.6401692628860474, "sibling_score": 0.6401692628860474, "answer_score": 0.4947858899831772, "sibling_qid": "CHE-2026-01-0329-Q003", "sibling_text": "megger working", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "How a megger works — voltage generation, ranges, battery", "cross_family": false } ] }, { "qid": "MUM-2026-07-3704-Q017", "text": "Asked to draw diagram?", "family": "Electrical - Generator & Alternator", "subtopic": "Star or Delta Connection", "tid": "MUM-2026-07-3704", "tray": "new", "candidates": [ { "answer_id": "OWS-15PPM-004", "score": 0.5936130881309509, "sibling_score": 0.5936130881309509, "answer_score": null, "sibling_qid": "MUM-2022-08-0034-Q002", "sibling_text": "draw line diagram", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": true }, { "answer_id": "EICU-MAN-P01-003", "score": 0.5915077328681946, "sibling_score": 0.5915077328681946, "answer_score": null, "sibling_qid": "KOL-2017-11-1330-Q001", "sibling_text": "manoeuvring diag he didn t want me to draw just the explanation", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Main-engine manoeuvring sequence and emergency manoeuvring", "cross_family": true }, { "answer_id": "ISB-435-003", "score": 0.5838349461555481, "sibling_score": 0.5838349461555481, "answer_score": null, "sibling_qid": "KOC-2025-11-1970-Q007", "sibling_text": "diagram how", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Intermediate shaft bearing — lubrication, cooling, cross-section and parts", "cross_family": true } ] }, { "qid": "MUM-2026-07-3705-Q004", "text": "Filter size in micron europe has mesh how to convert the mesh size to micron?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "LO Filter", "tid": "MUM-2026-07-3705", "tray": "review", "candidates": [ { "answer_id": "LOF-359-002", "score": 0.8147835731506348, "sibling_score": 0.8147835731506348, "answer_score": 0.4064747780561447, "sibling_qid": "NOI-2026-09-0008-Q008", "sibling_text": "how to convert mesh size to micron size in filter", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "FO Filter vs LO Filter — Which Is Finer, and Why?", "cross_family": false }, { "answer_id": "FLT-BF052-005", "score": 0.5937715768814087, "sibling_score": 0.5937715768814087, "answer_score": 0.46403652131557466, "sibling_qid": "KOL-2026-04-1214-Q010", "sibling_text": "1micron equals how many meter", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "What type of fuel filter is fitted, and what is a micron in filter rating?", "cross_family": true }, { "answer_id": "MEB-MEC-P03-001", "score": 0.5264605283737183, "sibling_score": 0.5264605283737183, "answer_score": null, "sibling_qid": "KOL-2021-10-1908-Q002", "sibling_text": "mc to me conversion", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "ME-B vs ME-C — the core difference", "cross_family": true } ] }, { "qid": "MUM-2026-07-3706-Q001", "text": "Periodic survey as per HSS code?", "family": "Drydock & Underwater Surveys", "subtopic": "Class / Special / Annual Survey", "tid": "MUM-2026-07-3706", "tray": "review", "candidates": [ { "answer_id": "CSAS-SURV-004", "score": 0.6780340075492859, "sibling_score": 0.6780340075492859, "answer_score": 0.45887290239334105, "sibling_qid": "KOL-2021-10-3467-Q003", "sibling_text": "what is periodic survey", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Annual vs intermediate vs periodical vs additional survey", "cross_family": false }, { "answer_id": "HSSC-002", "score": 0.6097609996795654, "sibling_score": 0.6097609996795654, "answer_score": 0.46792751252651216, "sibling_qid": "CHE-2026-05-0623-Q011", "sibling_text": "what is initial annual periodical and intermediate survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What are the initial, annual, periodical and intermediate surveys under HSSC, which surveys are NOT included, and which conventions does the harmonised system cover?", "cross_family": true }, { "answer_id": "SVY-SCOPE-003", "score": 0.6028582453727722, "sibling_score": 0.6028582453727722, "answer_score": null, "sibling_qid": "MUM-2023-01-2161-Q007", "sibling_text": "periodical survey and annual survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the difference between a periodical survey and an annual survey?", "cross_family": true } ] }, { "qid": "MUM-2026-07-3706-Q002", "text": "Explain keel of a ship?", "family": "Ship Construction & Stability", "subtopic": "Keel & Framing", "tid": "MUM-2026-07-3706", "tray": "review", "candidates": [ { "answer_id": "DUS-P5-03", "score": 0.6812809705734253, "sibling_score": 0.6812809705734253, "answer_score": null, "sibling_qid": "MUM-2026-09-3879-Q003", "sibling_text": "different parts of ship keel stern bow explain", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Stern frame construction, cross-section and rudder-axis sketch", "cross_family": false }, { "answer_id": "KEEL-FRM-B-002", "score": 0.6738346219062805, "sibling_score": 0.6738346219062805, "answer_score": 0.5374298363924026, "sibling_qid": "KOL-2016-12-0031-Q006", "sibling_text": "types of keels features of duct keel why bilge keel not provided in full length of the ship", "sibling_family": "", "via": "sibling", "answer_title": "Duct keel and keel arrangements", "cross_family": false }, { "answer_id": "BK-003", "score": 0.6634190678596497, "sibling_score": 0.6634190678596497, "answer_score": null, "sibling_qid": "MUM-2026-06-3477-Q003", "sibling_text": "why bilge keel not over full length of ship", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "What are the bilge-keel design, length, depth and protrusion requirements?", "cross_family": false } ] }, { "qid": "MUM-2026-07-3706-Q004", "text": "Lightweight and net weight of ship how to calculate?", "family": "Ship Construction & Stability", "subtopic": "DEFINITION", "tid": "MUM-2026-07-3706", "tray": "new", "candidates": [ { "answer_id": "TONN-004", "score": 0.6004543185234069, "sibling_score": null, "answer_score": 0.6004543185234069, "sibling_qid": "", "sibling_text": "lightweight lightship weight lightship weight of the ship as built hull machinery equipment fittings machinery liquids to working levels excludes cargo bunkers fo do fresh water ballast stores crew effects all consumables and variables", "sibling_family": "", "via": "answer_title", "answer_title": "Lightweight / Lightship Weight", "cross_family": false }, { "answer_id": "TONN-003", "score": 0.5994465351104736, "sibling_score": 0.5994465351104736, "answer_score": 0.5421929061412811, "sibling_qid": "KOC-2025-12-0740-Q003", "sibling_text": "ship deadweight and cargo deadweight", "sibling_family": "", "via": "sibling", "answer_title": "Deadweight Tonnage (DWT) — definition and calculation", "cross_family": false }, { "answer_id": "TONN-006", "score": 0.5905240178108215, "sibling_score": 0.5905240178108215, "answer_score": 0.5471926778554916, "sibling_qid": "KOL-2018-06-0192-Q001", "sibling_text": "1lightweight dead weight displacement", "sibling_family": "", "via": "sibling", "answer_title": "Relation between Displacement, Lightweight and Deadweight", "cross_family": false } ] }, { "qid": "MUM-2026-07-3706-Q007", "text": "Volute casing and regenerative volute casing difference ?", "family": "Pumps - Centrifugal & PD", "subtopic": "Pump Casing", "tid": "MUM-2026-07-3706", "tray": "new", "candidates": [ { "answer_id": "PUMP-CAS-001", "score": 0.5134192705154419, "sibling_score": 0.5134192705154419, "answer_score": 0.32041836380958555, "sibling_qid": "KOL-2017-02-1843-Q003", "sibling_text": "3 centrifugal p p why volute casing if suppose volute casing not there what equipment will be there", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "01. Function of the volute casing in a centrifugal pump — and what replaces it if there is no volute", "cross_family": false }, { "answer_id": "PUMP-CAS-002", "score": 0.42808693647384644, "sibling_score": 0.42808693647384644, "answer_score": 0.38504362404346465, "sibling_qid": "KOL-2026-10-4324-Q004", "sibling_text": "double volute casing of centrifugal pump", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "02. Double-volute casing — why it is used, which thrust it balances, and the clearance in question", "cross_family": false }, { "answer_id": "MAC-353-003", "score": 0.37999457120895386, "sibling_score": 0.37999457120895386, "answer_score": null, "sibling_qid": "MUM-2026-09-3892-Q007", "sibling_text": "difference in suction type and valve type", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Main air compressor suction / delivery valve inspection and overhaul", "cross_family": false } ] }, { "qid": "MUM-2026-07-3706-Q008", "text": "Where you will install superheater on ship and how to know if steam is superheated?", "family": "Boilers - Construction & Components", "subtopic": "Super Heater", "tid": "MUM-2026-07-3706", "tray": "review", "candidates": [ { "answer_id": "SH-332-002", "score": 0.6779549717903137, "sibling_score": 0.6779549717903137, "answer_score": 0.49445763826370237, "sibling_qid": "MUM-2025-03-1101-Q010", "sibling_text": "type of boiler on your ship what are super heater tubes and their arrangement", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Where superheater tubes are fitted; attachment, support and expansion", "cross_family": false }, { "answer_id": "SH-332-001", "score": 0.6481247544288635, "sibling_score": 0.6481247544288635, "answer_score": 0.4685445487499237, "sibling_qid": "KOC-2021-11-0946-Q003", "sibling_text": "what is superheated steam purpose location", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Function and purpose of the superheater; advantages of superheated steam", "cross_family": false }, { "answer_id": "SH-332-004", "score": 0.6088475584983826, "sibling_score": 0.6088475584983826, "answer_score": null, "sibling_qid": "KOL-2019-08-3969-Q003", "sibling_text": "in 2 stage superheater system location of each superheater use and why 2 stage", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Types of superheater and methods of achieving superheating", "cross_family": false } ] }, { "qid": "MUM-2026-07-3706-Q009", "text": "How starting air distributor is working and cross Water pairing disc and oil pairing disc working ?", "family": "2-Stroke - Reversing & Maneuvering", "subtopic": "Air Distributor", "tid": "MUM-2026-07-3706", "tray": "new", "candidates": [ { "answer_id": "AIR-DIST-001", "score": 0.6376829743385315, "sibling_score": 0.6376829743385315, "answer_score": 0.5010016471147537, "sibling_qid": "KOL-2022-05-1682-Q002", "sibling_text": "starting air distributor type and full working", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Air distributor — construction, types and working", "cross_family": false }, { "answer_id": "AIR-DIST-004", "score": 0.6312716007232666, "sibling_score": 0.6312716007232666, "answer_score": 0.4718787431716919, "sibling_qid": "NOI-2026-09-0019-Q002", "sibling_text": "what does starting air distributor do", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Starting air distributor overhaul", "cross_family": false }, { "answer_id": "AIR-DIST-002", "score": 0.5939643979072571, "sibling_score": 0.5939643979072571, "answer_score": 0.459014356136322, "sibling_qid": "KOL-2021-03-1581-Q004", "sibling_text": "in starting air system how distributor operated and from where it gets the signal", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Control-air route and starting sequence through the air distributor", "cross_family": false } ] }, { "qid": "MUM-2026-07-3706-Q010", "text": "Dol starter working and components ?", "family": "Electrical - Motors & Starters", "subtopic": "DOL Starter", "tid": "MUM-2026-07-3706", "tray": "review", "candidates": [ { "answer_id": "IMSP-004", "score": 0.6753110885620117, "sibling_score": 0.6753110885620117, "answer_score": null, "sibling_qid": "MUM-2026-01-1860-Q001S2", "sibling_text": "start dela starter components", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Explain the star-delta starter, and what you find inside it when you open it — its components.", "cross_family": false }, { "answer_id": "STARTER-DEC-B-002", "score": 0.617816686630249, "sibling_score": 0.617816686630249, "answer_score": null, "sibling_qid": "KOL-2026-04-2984-Q002", "sibling_text": "explain dol starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Why a starter is needed & reducing starting current", "cross_family": false }, { "answer_id": "STARTER-DEC-B-003", "score": 0.6129643321037292, "sibling_score": 0.6129643321037292, "answer_score": 0.32503283619880674, "sibling_qid": "KOC-2025-07-1559-Q009", "sibling_text": "dol starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "DOL starter — use, current, range and limits", "cross_family": false } ] }, { "qid": "MUM-2026-07-3707-Q001", "text": "Written status, Which type of ship , type of cargo loaded, engine type ? stroke your engine", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "MUM-2026-07-3707", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.7642545104026794, "sibling_score": 0.7642545104026794, "answer_score": null, "sibling_qid": "MUM-2026-05-3139-Q001", "sibling_text": "status of oral and written type of ship sailed container nomenclature of main and auxiliary engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.7292582392692566, "sibling_score": 0.7292582392692566, "answer_score": null, "sibling_qid": "MUM-2026-03-2606-Q001", "sibling_text": "type of engine and ship major maintenance done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.500512334704399, "sibling_score": null, "answer_score": 0.500512334704399, "sibling_qid": "", "sibling_text": "type a and type b ships how form and cargo set the freeboard", "sibling_family": "", "via": "answer_title", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "MUM-2026-07-3708-Q001", "text": "ME T/C Blower washing procedure?", "family": "Turbocharger", "subtopic": "Overhaul / Maintenance / Water Washing / Clearances", "tid": "MUM-2026-07-3708", "tray": "new", "candidates": [ { "answer_id": "COT-P02-07", "score": 0.6206719875335693, "sibling_score": 0.6206719875335693, "answer_score": 0.4568832278251648, "sibling_qid": "MUM-2025-05-0270-Q004", "sibling_text": "procedure for washing ig blower explain step by step", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Describe the safe washing, stopping and maintenance procedures for an inert-gas blower/fan.", "cross_family": true }, { "answer_id": "TC-WASH-001", "score": 0.5934675335884094, "sibling_score": 0.5934675335884094, "answer_score": null, "sibling_qid": "KOL-2019-03-3220-Q003", "sibling_text": "me tc wet washing procedure", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "01. How is turbocharger wet / water washing carried out (ME or AE)?", "cross_family": false }, { "answer_id": "TC-WASH-003", "score": 0.5452573299407959, "sibling_score": 0.5452573299407959, "answer_score": 0.41734006702899934, "sibling_qid": "KOL-2018-09-3186-Q003", "sibling_text": "me turbocharger washing procedure both dry and wet", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "03. Explain wet washing and dry / grit washing of a turbocharger — method and precautions.", "cross_family": false } ] }, { "qid": "MUM-2026-07-3708-Q002", "text": "Big C-Micro meter Zero setting?", "family": "Workshop & Measurement", "subtopic": "", "tid": "MUM-2026-07-3708", "tray": "review", "candidates": [ { "answer_id": "MICR-002", "score": 0.7007005214691162, "sibling_score": 0.7007005214691162, "answer_score": 0.46201705634593965, "sibling_qid": "KOL-2026-07-4256-Q002", "sibling_text": "big c micrometer zero setting", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Zero setting, calibration, error check and trueness", "cross_family": true }, { "answer_id": "OMD-003", "score": 0.5873211026191711, "sibling_score": 0.5873211026191711, "answer_score": null, "sibling_qid": "MUM-2024-08-0189-Q004", "sibling_text": "omd zero setting calibration", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Explain the OMD working principle, its types and their differences, the electrical side, and zero setting and calibration.", "cross_family": true }, { "answer_id": "MICR-003", "score": 0.5590776801109314, "sibling_score": 0.5590776801109314, "answer_score": 0.3751384928822517, "sibling_qid": "KOL-2026-02-3921-Q003", "sibling_text": "cylinder liner calibration why template is given zero setting of inside micrometer", "sibling_family": "Gauges & Tools", "via": "sibling", "answer_title": "Cylinder liner calibration with the inside micrometer", "cross_family": true } ] }, { "qid": "MUM-2026-07-3709-Q001", "text": "engine nomenclature ? what is dot version?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Engine Nomenclature", "tid": "MUM-2026-07-3709", "tray": "review", "candidates": [ { "answer_id": "ENG-NOM-005", "score": 0.7919754981994629, "sibling_score": 0.7919754981994629, "answer_score": 0.3065042957663536, "sibling_qid": "KOL-2026-07-4255-Q001", "sibling_text": "engine nomenclature what is dot version", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false }, { "answer_id": "ENG-NOM-001", "score": 0.3570955410599708, "sibling_score": null, "answer_score": 0.3570955410599708, "sibling_qid": "", "sibling_text": "nomenclature of me and ae asked together main engine and auxiliary engine are decoded on different rules don t run one set of letters across both main engine man b w two stroke cylinders stroke letter bore in cm programme letter control letter then compact version", "sibling_family": "", "via": "answer_title", "answer_title": "Nomenclature of ME and AE (asked together)", "cross_family": false }, { "answer_id": "ETP-344-P03-003", "score": 0.3267062410712242, "sibling_score": null, "answer_score": 0.3267062410712242, "sibling_qid": "", "sibling_text": "engine nomenclature layout mark number and engine constant designation order man b w cylinders stroke bore letter k l s g bore in cm m programme concept e electronic c camshaft design c compact b camshaft controlled exhaust hybrid mark number gi if gas injection tier rating stroke bore letters k short l long s super long g ultra long green the ratios are approximate design values not exact", "sibling_family": "", "via": "answer_title", "answer_title": "Engine nomenclature, layout, mark number and engine constant", "cross_family": false } ] }, { "qid": "MUM-2026-07-3709-Q003", "text": "flywheel teeth broken what will happen and what u will do?", "family": "2-Stroke - Components (Other)", "subtopic": "FLYWHEEL", "tid": "MUM-2026-07-3709", "tray": "review", "candidates": [ { "answer_id": "PROP-RP-004", "score": 0.7065257430076599, "sibling_score": 0.7065257430076599, "answer_score": null, "sibling_qid": "KOL-2026-07-4258-Q006", "sibling_text": "flywheel 2 teeth broken what will happen", "sibling_family": "Diesel Engines - General", "via": "sibling", "answer_title": "Blade damage, repair zones, polishing and balancing", "cross_family": true }, { "answer_id": "TG-MOTOR-006", "score": 0.5428579449653625, "sibling_score": 0.5428579449653625, "answer_score": 0.42646145224571225, "sibling_qid": "CHE-2026-04-0501-Q001", "sibling_text": "if tg motor burnt how you will remove tg out of flywheel", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "The turning gear motor is burnt or stuck during engine preparation. How do you operate the turning gear in an emergency and get it out of the flywheel?", "cross_family": true }, { "answer_id": "CRKPIN-P02-003", "score": 0.5415893793106079, "sibling_score": 0.5415893793106079, "answer_score": 0.44788551330566406, "sibling_qid": "KOL-2021-05-3405-Q001", "sibling_text": "crank pin damaged beyond repair action", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankpin or bearing beyond repair / no spare — casualty action", "cross_family": true } ] }, { "qid": "MUM-2026-07-3709-Q005", "text": "priming and foaming in boiler what u wish do?", "family": "Boilers - Operations & Firing", "subtopic": "Scum / Blow Down", "tid": "MUM-2026-07-3709", "tray": "new", "candidates": [ { "answer_id": "UPT-FIRE-001", "score": 0.6006314158439636, "sibling_score": 0.6006314158439636, "answer_score": null, "sibling_qid": "KOL-2019-11-3288-Q002", "sibling_text": "actions as 2 e on boiler uptake fire", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "The 4/E reports an uptake fire — your actions as 2/E", "cross_family": false }, { "answer_id": "BFS-257-008", "score": 0.5999408960342407, "sibling_score": 0.5999408960342407, "answer_score": null, "sibling_qid": "CHE-2026-05-0601-Q011", "sibling_text": "how to blow down boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler / EGB soot-blowing — procedure, precautions, sequence", "cross_family": false }, { "answer_id": "BLR-OPS-005", "score": 0.5974733829498291, "sibling_score": 0.5974733829498291, "answer_score": 0.4473543524742126, "sibling_qid": "KOL-2023-07-3628-Q001", "sibling_text": "boiler raising steam after survey", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Raising steam after a boiler survey, and guiding the Fourth Engineer to fire it from cold.", "cross_family": false } ] }, { "qid": "MUM-2026-07-3709-Q007", "text": "what is TEU in container ship?", "family": "Cargo Ops - Containers", "subtopic": "", "tid": "MUM-2026-07-3709", "tray": "new", "candidates": [ { "answer_id": "TONN-007", "score": 0.5907335877418518, "sibling_score": 0.5907335877418518, "answer_score": null, "sibling_qid": "KOL-2018-07-3964-Q002", "sibling_text": "what is a container standard dimension of container how canal dues charged on basis of teu or gt", "sibling_family": "", "via": "sibling", "answer_title": "Differentiate GT, NT, GRT/NRT, DWT, Lightweight and Displacement", "cross_family": false }, { "answer_id": "CONT-STAB-001", "score": 0.5726894736289978, "sibling_score": 0.5726894736289978, "answer_score": null, "sibling_qid": "MUM-2026-08-3829-Q004", "sibling_text": "container loading on deck affects", "sibling_family": "Cargo Ops - Containers", "via": "sibling", "answer_title": "Loading containers on deck / at higher tiers — effect on stability and how to improve it", "cross_family": false }, { "answer_id": "DB-TORBOX-B-003", "score": 0.5693601965904236, "sibling_score": 0.5693601965904236, "answer_score": null, "sibling_qid": "CHE-2026-04-0150-Q001", "sibling_text": "type of ship sailed container", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "What is a torsion box — definition and construction", "cross_family": true } ] }, { "qid": "MUM-2026-07-3710-Q002", "text": "what is the doping in a diode?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Zener / Diode / Rectifier", "tid": "MUM-2026-07-3710", "tray": "new", "candidates": [ { "answer_id": "DSC-001", "score": 0.6259363889694214, "sibling_score": 0.6259363889694214, "answer_score": 0.49527616500854493, "sibling_qid": "MUM-2025-07-1561-Q002", "sibling_text": "2 dopping in semiconductor", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is doping, why is it needed, and what materials are used?", "cross_family": false }, { "answer_id": "SCR-306-B-001", "score": 0.6052918434143066, "sibling_score": 0.6052918434143066, "answer_score": null, "sibling_qid": "KOL-2021-05-3403-Q006", "sibling_text": "semi conductors doping what materials npn and pnp diff thyristor applications", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Thyristor / SCR vs other semiconductor devices", "cross_family": false }, { "answer_id": "DSC-004", "score": 0.5624621510505676, "sibling_score": 0.5624621510505676, "answer_score": null, "sibling_qid": "KOL-2023-05-2654-Q004", "sibling_text": "normal diode how developed minority and majority carrier", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a PN junction, what are majority and minority carriers, and what is breakdown voltage?", "cross_family": false } ] }, { "qid": "MUM-2026-07-3710-Q006", "text": "what will happen if three phases are shorted in running generator?", "family": "Electrical - Generator & Alternator", "subtopic": "Generator Hot / Trip", "tid": "MUM-2026-07-3710", "tray": "review", "candidates": [ { "answer_id": "DIODESO-001", "score": 0.6500206589698792, "sibling_score": 0.6500206589698792, "answer_score": null, "sibling_qid": "MUM-2025-09-1640-Q001", "sibling_text": "two gen running and suddenly one diode open ckt short ckt", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Two alternators in parallel — one rotating rectifier diode goes short circuit. What happens, what if it goes open instead, and how do you know which it is?", "cross_family": false }, { "answer_id": "SYNC-D-001", "score": 0.6236832737922668, "sibling_score": 0.6236832737922668, "answer_score": null, "sibling_qid": "MUM-2023-03-1381-Q002", "sibling_text": "what happens when u close d circuit breaker of a generator whose voltage is not in phase", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Closing the breaker out of phase — wrong-synchronizing consequences", "cross_family": false }, { "answer_id": "NO-VOLT-001", "score": 0.6123656630516052, "sibling_score": 0.6123656630516052, "answer_score": null, "sibling_qid": "MUM-2025-05-1501-Q002", "sibling_text": "3e started the generator voltage not coming actions as 2e", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "The 3/E reports the generator has started but no voltage is showing — reasons, and your actions as 2/E", "cross_family": false } ] }, { "qid": "MUM-2026-07-3711-Q001", "text": "difference between swirl and squish with respect to combination space?", "family": "Ship Construction & Stability", "subtopic": "Stern Frame / Transom", "tid": "MUM-2026-07-3711", "tray": "new", "candidates": [ { "answer_id": "ETP-344-P03-007", "score": 0.564292311668396, "sibling_score": 0.564292311668396, "answer_score": null, "sibling_qid": "CHE-2026-04-0263-Q002", "sibling_text": "what is swirl and squish", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Combustion in the cylinder — atomisation, penetration, turbulence, swirl, squish", "cross_family": true }, { "answer_id": "FSE-P02-003", "score": 0.5443227887153625, "sibling_score": 0.5443227887153625, "answer_score": null, "sibling_qid": "KOC-2026-09-2171-Q006", "sibling_text": "swirl and squish", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Slack / partly-filled tanks and sloshing", "cross_family": true }, { "answer_id": "TONN-004", "score": 0.44269686937332153, "sibling_score": 0.44269686937332153, "answer_score": null, "sibling_qid": "KOL-2026-06-0001-Q007S2", "sibling_text": "difference between dwt lightweight", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Lightweight / Lightship Weight", "cross_family": false } ] }, { "qid": "MUM-2026-07-3711-Q003", "text": "one unit jacket water temperature is reduced reason?", "family": "2-Stroke - Operations & Casualty", "subtopic": "Jacket Water High Temp", "tid": "MUM-2026-07-3711", "tray": "new", "candidates": [ { "answer_id": "JCW-SYS-003", "score": 0.6245328187942505, "sibling_score": 0.6245328187942505, "answer_score": 0.5388352036476135, "sibling_qid": "MUM-2026-06-3505-Q005", "sibling_text": "jcw temp increase for all units reason", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "ME jacket-water temperature is rising on all units and will not hold setpoint - reasons, your actions as 2/E, and telling which side of the cooler is leaking", "cross_family": true }, { "answer_id": "CPP-POL-02", "score": 0.6083229780197144, "sibling_score": 0.6083229780197144, "answer_score": null, "sibling_qid": "KOL-2026-07-4275-Q006", "sibling_text": "one unit exhaust temperature low reason", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "One main-engine cylinder has a low exhaust temperature — what are the causes and checks?", "cross_family": true }, { "answer_id": "AE-HOT-BLOW-006", "score": 0.5945202708244324, "sibling_score": 0.5945202708244324, "answer_score": null, "sibling_qid": "MUM-2026-05-3301-Q003", "sibling_text": "ae one unit air temp low reason", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Auxiliary engine all units exhaust temperature high — reasons", "cross_family": true } ] }, { "qid": "MUM-2026-07-3711-Q005", "text": "LDCL in liner ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Cylinder Lubrication", "tid": "MUM-2026-07-3711", "tray": "review", "candidates": [ { "answer_id": "CYL-LUB-A-004", "score": 0.8424081206321716, "sibling_score": 0.8424081206321716, "answer_score": null, "sibling_qid": "KOL-2026-07-4260-Q005", "sibling_text": "ldcl in liner", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Types of cylinder lubrication system", "cross_family": false }, { "answer_id": "IGAT-583-004", "score": 0.5759860873222351, "sibling_score": 0.5759860873222351, "answer_score": null, "sibling_qid": "CHE-2026-05-0641-Q002", "sibling_text": "ldcl y and failure", "sibling_family": "2-Stroke-jacket water system", "via": "sibling", "answer_title": "As Second Engineer, what actions do you take if the inert gas plant of a crude oil tanker is repeatedly tripping on IG high temperature?", "cross_family": true }, { "answer_id": "LL-CONV-P06-002", "score": 0.47831982374191284, "sibling_score": 0.47831982374191284, "answer_score": 0.2576950281858444, "sibling_qid": "MUM-2025-12-0633-Q002", "sibling_text": "load line c1 c2 c3", "sibling_family": "", "via": "sibling", "answer_title": "LLC-P06-02 - Types of load lines: standard, seasonal, timber, WNA and multiple load lines", "cross_family": false } ] }, { "qid": "MUM-2026-07-3712-Q001", "text": "Status of written and which engine i worked on ?", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-07-3712", "tray": "new", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.6363109350204468, "sibling_score": 0.6363109350204468, "answer_score": null, "sibling_qid": "KOC-2026-05-0045-Q002", "sibling_text": "whether done me engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "ENG-NOM-006", "score": 0.569352924823761, "sibling_score": 0.569352924823761, "answer_score": null, "sibling_qid": "CHE-2026-05-0585-Q001", "sibling_text": "main engine specification complete", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Short-form asks: SMC-C, LMC, and ME vs MC quickly", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.5571022033691406, "sibling_score": 0.5571022033691406, "answer_score": null, "sibling_qid": "CHE-2026-04-0506-Q003", "sibling_text": "types of engine you worked specifications of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false } ] }, { "qid": "MUM-2026-07-3712-Q003", "text": "while running lubrication failure what will happen for ME ?", "family": "2-Stroke - Operations & Casualty", "subtopic": "", "tid": "MUM-2026-07-3712", "tray": "new", "candidates": [ { "answer_id": "CYL-LUB-B-006", "score": 0.5781728625297546, "sibling_score": 0.5781728625297546, "answer_score": 0.48677252531051635, "sibling_qid": "MUM-2024-02-0957-Q005", "sibling_text": "if one unit cylinder lubrication fail then how compensate that unit remaining i will update", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Lubricator / CCU failure and emergency cylinder-oil supply", "cross_family": true }, { "answer_id": "CYL-LUB-B-005", "score": 0.5594154000282288, "sibling_score": 0.5594154000282288, "answer_score": 0.44794337153434755, "sibling_qid": "CHE-2025-05-0398-Q013", "sibling_text": "what will be the liner lubrication during running in", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Running-in cylinder lubrication", "cross_family": true }, { "answer_id": "LO-TEST-P02-003", "score": 0.5550377368927002, "sibling_score": 0.5550377368927002, "answer_score": null, "sibling_qid": "MUM-2023-02-2164-Q009", "sibling_text": "lub oil have microdegrad your action", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Abnormal LO condition: sump rise, colour, high temperature/pressure, lacquer, deterioration", "cross_family": true } ] }, { "qid": "MUM-2026-07-3712-Q006", "text": "contra propeller.?", "family": "General Marine Engineering", "subtopic": "Shafting / Propeller / CPP", "tid": "MUM-2026-07-3712", "tray": "review", "candidates": [ { "answer_id": "SHAFT-CPP-005", "score": 0.7523101568222046, "sibling_score": 0.7523101568222046, "answer_score": null, "sibling_qid": "KOL-2026-07-4262-Q005", "sibling_text": "contra propeller", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "5. Propeller types, design criteria & latest developments", "cross_family": false }, { "answer_id": "SPR-STERN-006", "score": 0.6528286933898926, "sibling_score": 0.6528286933898926, "answer_score": 0.4592200517654419, "sibling_qid": "KOL-2025-05-1802-Q004", "sibling_text": "contra rotating propeller", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Propeller types & special propulsors", "cross_family": true }, { "answer_id": "SHAFT-CPP-003", "score": 0.6259711980819702, "sibling_score": 0.6259711980819702, "answer_score": null, "sibling_qid": "KOL-2024-12-0897-Q006", "sibling_text": "cpl propeller", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "3. CPP — working, construction, oil channel, feedback & emergency", "cross_family": false } ] }, { "qid": "MUM-2026-07-3712-Q008", "text": "How power measured? Formulae-Decider ques ", "family": "Electrical - Electronics & Power Conversion", "subtopic": "RMS Value", "tid": "MUM-2026-07-3712", "tray": "new", "candidates": [ { "answer_id": "PERF-470-003", "score": 0.5676445960998535, "sibling_score": 0.5676445960998535, "answer_score": null, "sibling_qid": "KOC-2026-03-1116-Q008", "sibling_text": "power measurement equation and details", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main-engine power calculation — formulae and cross-checks", "cross_family": true }, { "answer_id": "MIP-264-003", "score": 0.5532792806625366, "sibling_score": 0.5532792806625366, "answer_score": null, "sibling_qid": "CHE-2026-01-0240-Q008", "sibling_text": "what is formula for power", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Calculate engine power: IHP and BHP, and where each is measured", "cross_family": true }, { "answer_id": "EEDI-B-001", "score": 0.536958634853363, "sibling_score": 0.536958634853363, "answer_score": null, "sibling_qid": "MUM-2026-04-0925-Q005", "sibling_text": "eedi formula at what me power at what ae power during calculation", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "EEDI — formula, unit and the calculation terms", "cross_family": true } ] }, { "qid": "MUM-2026-07-3712-Q009", "text": "Explain all parameters in formulae (plan/60)Which card. Draw it ? ", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Indicator Card / Power Card", "tid": "MUM-2026-07-3712", "tray": "new", "candidates": [ { "answer_id": "IND-CARD-B-004", "score": 0.5349578857421875, "sibling_score": 0.5349578857421875, "answer_score": null, "sibling_qid": "KOL-2024-06-1780-Q003", "sibling_text": "how many types of draw cards how you take power card how you compute power from this", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "The indicator instrument and the power-card taking procedure", "cross_family": false }, { "answer_id": "IND-CARD-A-001", "score": 0.519140899181366, "sibling_score": 0.519140899181366, "answer_score": 0.3264748081564903, "sibling_qid": "CHE-2025-12-0235-Q005", "sibling_text": "draw the draw card what are the details you will from it pcom reduced reason", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Reading the power / draw card — what it tells you", "cross_family": false }, { "answer_id": "IND-CARD-A-002", "score": 0.49920254945755005, "sibling_score": 0.49920254945755005, "answer_score": null, "sibling_qid": "KOC-2022-07-2031-Q005", "sibling_text": "indicator cards draw card explain compression card why how", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "The four indicator cards and how they differ", "cross_family": false } ] }, { "qid": "MUM-2026-07-3712-Q010", "text": "Nox parameters in which file we enter(nox technical file ).what need to be enter ?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "EIAPP", "tid": "MUM-2026-07-3712", "tray": "review", "candidates": [ { "answer_id": "A6-NSEC-002", "score": 0.8034457564353943, "sibling_score": 0.8034457564353943, "answer_score": 0.3907914742827415, "sibling_qid": "KOL-2026-07-4262-Q008", "sibling_text": "nox parameters in which file we enter what need to be entered", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "NOx Technical Code vs NOx Technical File", "cross_family": false }, { "answer_id": "EECS-016", "score": 0.39846333861351013, "sibling_score": null, "answer_score": 0.39846333861351013, "sibling_qid": "", "sibling_text": "16 explain the nox technical file eedi and seemp nox technical file ch 3 nox technical code proves engine nox reg 13 compliance contents engine data components settings onboard verification method", "sibling_family": "", "via": "answer_title", "answer_title": "16. Explain the NOx Technical File, EEDI and SEEMP", "cross_family": false }, { "answer_id": "AVICERT-008", "score": 0.39245841950178145, "sibling_score": null, "answer_score": 0.39245841950178145, "sibling_qid": "", "sibling_text": "what is marpol annex vi what documents are carried under it and what is the nox technical file and its contents annex vi scope nox sox pm ods voc incineration plus energy efficiency cii document set iapp ieec applicable eiapps nox eexi technical files seemp ods book bdn sample the integrated dcs cii statement", "sibling_family": "", "via": "answer_title", "answer_title": "What is MARPOL Annex VI, what documents are carried under it, and what is the NOx Technical File and its contents?", "cross_family": false } ] }, { "qid": "MUM-2026-07-3713-Q002", "text": "ECU, CCU, FIVA full working from where it takes input and how it operates, what type of signal does CCU give to FIVA for operation?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "MC-C vs MEB Engine", "tid": "MUM-2026-07-3713", "tray": "review", "candidates": [ { "answer_id": "FIVA-220-003", "score": 0.7964275479316711, "sibling_score": 0.7964275479316711, "answer_score": 0.4987506985664368, "sibling_qid": "KOL-2026-07-4261-Q002", "sibling_text": "ecu ccu fiva full working from where it takes input and how it operates what type of signal does ccu give to fiva for operation", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "FIVA control signal, controller type, voice-coil drive and fail-safe behaviour", "cross_family": false }, { "answer_id": "MEB-MEC-P03-002", "score": 0.6357857584953308, "sibling_score": 0.6357857584953308, "answer_score": 0.4358465939760208, "sibling_qid": "KOL-2026-01-4082-Q003", "sibling_text": "ecu from where gets signal", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "ME camless control architecture — ECS, CCU, EICU, MPC", "cross_family": false }, { "answer_id": "RTFLEX-319-003", "score": 0.6166073083877563, "sibling_score": 0.6166073083877563, "answer_score": 0.4685346186161041, "sibling_qid": "KOL-2019-04-3232-Q002", "sibling_text": "ecu hcu acu ccu function", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Electronic control modules: WECS, FCM-20, ICU, VCU — and the MAN-ME contrast", "cross_family": false } ] }, { "qid": "MUM-2026-07-3713-Q005", "text": "Early injection, how will u come to know and its effect on engine?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "", "tid": "MUM-2026-07-3713", "tray": "review", "candidates": [ { "answer_id": "FCAM-LEAD-P04-003", "score": 0.765990674495697, "sibling_score": 0.765990674495697, "answer_score": 0.44489877223968505, "sibling_qid": "KOL-2026-07-4261-Q005", "sibling_text": "early injection how will u come to know and its effect on engine", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Advanced, retarded or disturbed fuel timing effects", "cross_family": false }, { "answer_id": "VIT-MECH-A-002", "score": 0.5958322286605835, "sibling_score": 0.5958322286605835, "answer_score": null, "sibling_qid": "CHE-2025-10-0448-Q002", "sibling_text": "how the start of injection timing is controlled", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How VIT works — varying the start of injection on the fuel pump", "cross_family": false }, { "answer_id": "FIS-221-002", "score": 0.5948524475097656, "sibling_score": 0.5948524475097656, "answer_score": null, "sibling_qid": "CHE-2026-04-0256-Q003", "sibling_text": "how injection happen in me engine", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How fuel injection takes place in an ME / ME-C / ME-B engine", "cross_family": false } ] }, { "qid": "MUM-2026-07-3714-Q001", "text": "Type of Ship: ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-07-3714", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8364351391792297, "sibling_score": 0.8364351391792297, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8018133640289307, "sibling_score": 0.8018133640289307, "answer_score": 0.5471183538436889, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8004559874534607, "sibling_score": 0.8004559874534607, "answer_score": 0.5215973019599914, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2026-07-3714-Q005", "text": "International waters?", "family": "Other Conventions", "subtopic": "UNCLOS", "tid": "MUM-2026-07-3714", "tray": "review", "candidates": [ { "answer_id": "UNCLOS-003", "score": 0.7187374234199524, "sibling_score": 0.7187374234199524, "answer_score": 0.5043466329574585, "sibling_qid": "KOL-2025-09-1054-Q007", "sibling_text": "territorial waters", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What are the maritime zones under UNCLOS — territorial waters, the contiguous zone and the international maritime boundary?", "cross_family": false }, { "answer_id": "UNCLOS-002", "score": 0.6463242173194885, "sibling_score": 0.6463242173194885, "answer_score": null, "sibling_qid": "KOL-2025-08-1021-Q003", "sibling_text": "unclos treaties", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What treaties come under UNCLOS?", "cross_family": false }, { "answer_id": "UNCLOS-004", "score": 0.6446384787559509, "sibling_score": 0.6446384787559509, "answer_score": null, "sibling_qid": "KOL-2023-04-0742-Q004", "sibling_text": "continental shelf and unclos", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is the continental shelf under UNCLOS and what is its range?", "cross_family": false } ] }, { "qid": "MUM-2026-07-3714-Q006", "text": "Hyper mist pump pressure and nozzle pressure?", "family": "SOLAS - Fire Safety", "subtopic": "Sprinkler / Water Mist / Hi-Fog", "tid": "MUM-2026-07-3714", "tray": "review", "candidates": [ { "answer_id": "FIRE-P01-03", "score": 0.807287871837616, "sibling_score": 0.807287871837616, "answer_score": null, "sibling_qid": "MUM-2026-02-0766-Q007S4", "sibling_text": "hypermist pump and nozzle pressure d", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist — how the mist is formed and how it extinguishes fire", "cross_family": false }, { "answer_id": "FIRE-P02-02", "score": 0.7700585722923279, "sibling_score": 0.7700585722923279, "answer_score": null, "sibling_qid": "MUM-2026-05-3084-Q007", "sibling_text": "hyper mist pump pressure and testing", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist — routine testing, alarms and 2/E maintenance", "cross_family": false }, { "answer_id": "FIRE-P01-01", "score": 0.7579249739646912, "sibling_score": 0.7579249739646912, "answer_score": null, "sibling_qid": "KOC-2026-05-0049-Q001", "sibling_text": "hyper mist draw and explain pump pressure and local operation", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist / water-mist system — draw and explain the machinery-space arrangement and normal working", "cross_family": false } ] }, { "qid": "MUM-2026-07-3714-Q007", "text": "Nitrogen Generator working , modes of N2 ?", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator / Generator", "tid": "MUM-2026-07-3714", "tray": "review", "candidates": [ { "answer_id": "LPG-LNG-006", "score": 0.6894432306289673, "sibling_score": 0.6894432306289673, "answer_score": 0.48718163669109343, "sibling_qid": "MUM-2026-02-0741-Q002", "sibling_text": "explain nitrogen generator working", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Nitrogen generator, dry IG, and padding on gas carriers", "cross_family": false }, { "answer_id": "COT-P02-09", "score": 0.6569128036499023, "sibling_score": 0.6569128036499023, "answer_score": 0.4386775434017181, "sibling_qid": "MUM-2025-09-0443-Q005", "sibling_text": "n2 generator working", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Explain why nitrogen is used on chemical tankers and describe the nitrogen generator, product-gas composition, oxygen removal and principal alarms/trips.", "cross_family": true }, { "answer_id": "BIO-FUEL-004", "score": 0.4337224066257477, "sibling_score": null, "answer_score": 0.4337224066257477, "sibling_qid": "", "sibling_text": "ammonia injection in the electronically controlled me two stroke ammonia nh3 carbon free at the point of use no co2 from combustion made from hydrogen via the haber bosch process poor combustion high autoignition temperature narrow flammability low flame speed needs a pilot fuel like methanol so it stays dual fuel", "sibling_family": "", "via": "answer_title", "answer_title": "Ammonia injection in the electronically-controlled (ME) two-stroke", "cross_family": false } ] }, { "qid": "MUM-2026-07-3714-Q008", "text": "MLC latest Amendments?", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2026-07-3714", "tray": "new", "candidates": [ { "answer_id": "COT-P02-10", "score": 0.5316694974899292, "sibling_score": 0.5316694974899292, "answer_score": null, "sibling_qid": "MUM-2026-06-3653-Q004", "sibling_text": "seemp latest amendment", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "State and explain the latest statutory amendments affecting tanker inert-gas systems, including applicability and practical changes on board.", "cross_family": true }, { "answer_id": "IMO-CODES-P02-001", "score": 0.5068858861923218, "sibling_score": 0.5068858861923218, "answer_score": null, "sibling_qid": "KOC-2025-01-0515-Q002", "sibling_text": "msc108 new ammendments", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "IMO instruments: convention, code, protocol, amendment, regulation, resolution and rule", "cross_family": true }, { "answer_id": "BC-IMSBC-005", "score": 0.4991716742515564, "sibling_score": 0.4991716742515564, "answer_score": 0.36402852237224576, "sibling_qid": "KOL-2025-08-1023-Q004", "sibling_text": "imsbc latest amendment", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "5. Latest IMSBC Code amendments", "cross_family": true } ] }, { "qid": "MUM-2026-07-3715-Q001", "text": "Status of written and oral ?", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2026-07-3715", "tray": "review", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.7607207298278809, "sibling_score": 0.7607207298278809, "answer_score": null, "sibling_qid": "MUM-2026-05-3187-Q001", "sibling_text": "status of other orals and written", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.5462543368339539, "sibling_score": 0.5462543368339539, "answer_score": null, "sibling_qid": "MUM-2026-05-2995-Q001", "sibling_text": "written and oral status type of ship and company", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": true }, { "answer_id": "AE-CRP-005", "score": 0.42782819271087646, "sibling_score": 0.42782819271087646, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q001", "sibling_text": "type of vessel engine make written and oral status", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": true } ] }, { "qid": "MUM-2026-07-3715-Q003", "text": "Stern tube seal renewal?", "family": "Drydock & Underwater Surveys", "subtopic": "Stern Tube / Tail Shaft", "tid": "MUM-2026-07-3715", "tray": "review", "candidates": [ { "answer_id": "STERN-P03-002", "score": 0.8221009373664856, "sibling_score": 0.8221009373664856, "answer_score": 0.5311535358428955, "sibling_qid": "MUM-2026-03-2663-Q002", "sibling_text": "stern tube seal renewal in place", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Stern-tube seals: arrangement, air/lip seals, renewal/replacement and the vulcanized split-seal fitting method", "cross_family": false }, { "answer_id": "STS-P02-006", "score": 0.6897048354148865, "sibling_score": 0.6897048354148865, "answer_score": 0.503829962015152, "sibling_qid": "MUM-2026-02-2575-Q002", "sibling_text": "changing of stern tube seal at sea", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "STS-P02-06 - Stern tube seals, integrity test, sleeve wasting and afloat repair", "cross_family": false }, { "answer_id": "STERN-TUBE-P04-001", "score": 0.669877290725708, "sibling_score": 0.669877290725708, "answer_score": 0.4345356643199921, "sibling_qid": "MUM-2026-09-3883-Q007", "sibling_text": "action if stern tube seal is leaking", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Stern tube or seal leakage at sea: diagnosis and 2/E actions", "cross_family": false } ] }, { "qid": "MUM-2026-07-3716-Q004", "text": "What is preferential trip and what are the timings?", "family": "Electrical - Protection & Relays", "subtopic": "Preferential Trip", "tid": "MUM-2026-07-3716", "tray": "review", "candidates": [ { "answer_id": "PTRIP-222-002", "score": 0.6880027651786804, "sibling_score": 0.6880027651786804, "answer_score": 0.24242539554834366, "sibling_qid": "KOL-2026-02-4084-Q009", "sibling_text": "preferential trip and its timings", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Stages, load-shedding sequence, settings, time delays and loads shed", "cross_family": false }, { "answer_id": "PTRIP-222-001", "score": 0.6334471106529236, "sibling_score": 0.6334471106529236, "answer_score": 0.3202000021934509, "sibling_qid": "KOC-2025-10-0693-Q009", "sibling_text": "preferential trip explain", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Preferential trip — purpose, working principle and activation", "cross_family": false }, { "answer_id": "PTRIP-BO-002", "score": 0.2740551263093948, "sibling_score": null, "answer_score": 0.2740551263093948, "sibling_qid": "", "sibling_text": "preferential trip load shedding how does it work and how is it tested job shed non essential load on generator overload so essential services stay powered and the main breaker never opens it prevents blackout statutory basis solas ii 1 reg 41 5 load shedding to protect generators against sustained overload the shedding is automatic only non essential loads are shed air conditioning ventilation ref", "sibling_family": "", "via": "answer_title", "answer_title": "Preferential trip / load shedding — how does it work, and how is it tested?", "cross_family": false } ] }, { "qid": "MUM-2026-07-3716-Q005", "text": "Li ion battery and cell voltage?", "family": "Electrical - Batteries & DC Systems", "subtopic": "Battery", "tid": "MUM-2026-07-3716", "tray": "review", "candidates": [ { "answer_id": "BDC-P01-03", "score": 0.7343640923500061, "sibling_score": 0.7343640923500061, "answer_score": null, "sibling_qid": "KOC-2025-10-1595-Q005", "sibling_text": "ni cd battery cell voltage", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "Nickel-cadmium (alkaline) battery — construction, working and cell data", "cross_family": false }, { "answer_id": "BDC-P01-01", "score": 0.6776760220527649, "sibling_score": 0.6776760220527649, "answer_score": null, "sibling_qid": "KOC-2024-12-1454-Q007", "sibling_text": "types of battery and it s cell voltage", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "Shipboard batteries — purpose, types and where they are used", "cross_family": false }, { "answer_id": "BDC-P01-02", "score": 0.6664623022079468, "sibling_score": 0.6664623022079468, "answer_score": null, "sibling_qid": "KOC-2025-10-1600-Q007", "sibling_text": "lead acid cell voltage", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "Lead-acid cell — construction, working and cell chemistry", "cross_family": false } ] }, { "qid": "MUM-2026-07-3716-Q007", "text": "if lead acid battery is there in lifeboat there will be fumes what all precautions will you take to make sure there are no fumes when you enter and is there any device to prevent overpressure and under pressure?", "family": "Electrical - Batteries & DC Systems", "subtopic": "Battery Basics / Types", "tid": "MUM-2026-07-3716", "tray": "review", "candidates": [ { "answer_id": "EXD-EXI-A-002", "score": 0.6981894373893738, "sibling_score": 0.6981894373893738, "answer_score": null, "sibling_qid": "KOC-2023-10-0225-Q016", "sibling_text": "battery room type of light and is gas tight and safety precaution before doing maintenance few question i couldnt recall sorry for delay guys", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "Ex d (flameproof / explosion-proof) — construction, shipboard applications and maintenance", "cross_family": false }, { "answer_id": "BDC-P06-01", "score": 0.6860012412071228, "sibling_score": 0.6860012412071228, "answer_score": 0.576274037361145, "sibling_qid": "KOL-2022-05-2570-Q008", "sibling_text": "precautions before entering battery room few more cross questions", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "Battery-room hazards, requirements and entry precautions", "cross_family": false }, { "answer_id": "LB-REQ-B-004", "score": 0.6646708846092224, "sibling_score": 0.6646708846092224, "answer_score": null, "sibling_qid": "MUM-2026-07-3716-Q006", "sibling_text": "lifeboat battery which and voltage", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "Ordering lifeboat batteries — type, rating & CCA", "cross_family": false } ] }, { "qid": "MUM-2026-07-3717-Q001", "text": "MEGI,MEGA Engine difference?", "family": "Cargo Ops - Gas Carriers", "subtopic": "Dual Fuel", "tid": "MUM-2026-07-3717", "tray": "new", "candidates": [ { "answer_id": "MCC-MEB-P02-003", "score": 0.6321576833724976, "sibling_score": 0.6321576833724976, "answer_score": null, "sibling_qid": "MUM-2022-08-1019-Q001", "sibling_text": "what main difference in me engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Conventional MC / MC-C versus electronic ME — the practical operating differences", "cross_family": true }, { "answer_id": "EGTP-P02-005", "score": 0.6280609369277954, "sibling_score": 0.6280609369277954, "answer_score": 0.4046891018748283, "sibling_qid": "NOI-2026-09-0001-Q003", "sibling_text": "difference between mc and me engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "MC / MC-C / ME-C and Electronically Controlled Engines", "cross_family": true }, { "answer_id": "DFUEL-566-003", "score": 0.6115865707397461, "sibling_score": 0.6115865707397461, "answer_score": 0.5198198586702346, "sibling_qid": "MUM-2025-07-2816-Q004", "sibling_text": "difference between megi and mega", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "What is the difference between MEGI and MEGA engines, and which arrangement is more efficient?", "cross_family": false } ] }, { "qid": "MUM-2026-07-3717-Q002", "text": "If both CCU stop what will happen?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Angle Encoder", "tid": "MUM-2026-07-3717", "tray": "new", "candidates": [ { "answer_id": "EICU-MAN-P01-004", "score": 0.5792297124862671, "sibling_score": 0.5792297124862671, "answer_score": 0.32323669791221615, "sibling_qid": "KOC-2026-09-2205-Q017", "sibling_text": "ccu failure happens", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Control-unit failure — CCU / ECU / EICU: can you still run the engine?", "cross_family": true }, { "answer_id": "ANG-ENC-005", "score": 0.5240671634674072, "sibling_score": 0.5240671634674072, "answer_score": 0.3081574603915214, "sibling_qid": "CHE-2025-08-0514-Q002", "sibling_text": "if both fail what will happen", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Encoder failure: redundancy, offset, backup and emergency starting", "cross_family": false }, { "answer_id": "PUNCT-VLV-003", "score": 0.44596612453460693, "sibling_score": 0.44596612453460693, "answer_score": 0.2996572911739349, "sibling_qid": "MUM-2022-10-2150-Q008", "sibling_text": "cut off fuel of unit both sulzer and b and w", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel cut-off, engine stop, unit cut-out and interlock context", "cross_family": false } ] }, { "qid": "MUM-2026-07-3717-Q003", "text": "Engine will run in this condition or not?", "family": "General Marine Engineering", "subtopic": "Engine Ratings (MCR/NOR)", "tid": "MUM-2026-07-3717", "tray": "new", "candidates": [ { "answer_id": "MCR-NOR-003", "score": 0.618208110332489, "sibling_score": 0.618208110332489, "answer_score": 0.3887807741761207, "sibling_qid": "KOC-2024-10-2054-Q008", "sibling_text": "which condition will run main engine in mcr rpm", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "In what conditions may the main engine be run up to MCR, or beyond it?", "cross_family": false }, { "answer_id": "ETP-344-P03-001", "score": 0.608147144317627, "sibling_score": 0.608147144317627, "answer_score": null, "sibling_qid": "KOC-2026-05-0045-Q002", "sibling_text": "whether done me engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": true }, { "answer_id": "TC-CS-P01-007", "score": 0.5843167901039124, "sibling_score": 0.5843167901039124, "answer_score": null, "sibling_qid": "KOC-2025-02-1901-Q004", "sibling_text": "if t c fails how to run engine", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "G·Running the engine with a turbocharger out of service", "cross_family": true } ] }, { "qid": "MUM-2026-07-3717-Q004", "text": "If both EICU will fail what will happen?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Angle Encoder", "tid": "MUM-2026-07-3717", "tray": "new", "candidates": [ { "answer_id": "EICU-MAN-P01-004", "score": 0.594963550567627, "sibling_score": 0.594963550567627, "answer_score": 0.3919376954436302, "sibling_qid": "MUM-2025-08-2828-Q007", "sibling_text": "your both eicu are at fault can you run engine how", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Control-unit failure — CCU / ECU / EICU: can you still run the engine?", "cross_family": true }, { "answer_id": "ANG-ENC-005", "score": 0.5854498744010925, "sibling_score": 0.5854498744010925, "answer_score": 0.39608681946992874, "sibling_qid": "CHE-2025-08-0514-Q002", "sibling_text": "if both fail what will happen", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Encoder failure: redundancy, offset, backup and emergency starting", "cross_family": false }, { "answer_id": "FIVA-220-002", "score": 0.47888052463531494, "sibling_score": 0.47888052463531494, "answer_score": null, "sibling_qid": "KOL-2024-07-1785-Q002", "sibling_text": "fiva if unit fails what will happen to five", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "FIVA control of fuel injection — timing, quantity and actuation", "cross_family": false } ] }, { "qid": "MUM-2026-07-3717-Q005", "text": "How lubrication will be done in this situation?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Hydrodynamic Lubrication", "tid": "MUM-2026-07-3717", "tray": "new", "candidates": [ { "answer_id": "INT-SHAFT-003", "score": 0.6341359615325928, "sibling_score": 0.6341359615325928, "answer_score": null, "sibling_qid": "KOL-2026-07-4257-Q009", "sibling_text": "intermediate bearing lubrication procedure", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "3. Intermediate-shaft bearings: lubrication, high temperature, survey and load", "cross_family": false }, { "answer_id": "XHD-BRG-C-004", "score": 0.6145278811454773, "sibling_score": 0.6145278811454773, "answer_score": null, "sibling_qid": "KOL-2026-03-2045-Q003", "sibling_text": "crosshead bearing lubrication how guide shoes are getting lubricated", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "D. Crosshead and guide-shoe lubrication: oil path, the no-load-reversal film problem, MAN vs Sulzer", "cross_family": false }, { "answer_id": "TC-OVHL-001", "score": 0.6106727123260498, "sibling_score": 0.6106727123260498, "answer_score": null, "sibling_qid": "MUM-2026-06-3354-Q010", "sibling_text": "tc lubrication methods", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main-engine turbocharger overhaul — procedure and post-overhaul checks", "cross_family": false } ] }, { "qid": "MUM-2026-07-3717-Q007", "text": "What is the type of pump used in lubrication of ME?", "family": "Turbocharger", "subtopic": "TC Bearing", "tid": "MUM-2026-07-3717", "tray": "new", "candidates": [ { "answer_id": "PCD-P01-02", "score": 0.6459901332855225, "sibling_score": 0.6459901332855225, "answer_score": null, "sibling_qid": "KOL-2018-04-1364-Q003", "sibling_text": "use of centrifugal pump as m e lube oil pump", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Types and classification of pumps on board — and which pump for which duty", "cross_family": true }, { "answer_id": "PCD-P05-02", "score": 0.6359974145889282, "sibling_score": 0.6359974145889282, "answer_score": null, "sibling_qid": "MUM-2024-04-2225-Q002", "sibling_text": "screw pump lubrication", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Screw pump — construction, working, types, drive arrangement, clearances, why preferred over gear", "cross_family": true }, { "answer_id": "TC-OVHL-001", "score": 0.6265076994895935, "sibling_score": 0.6265076994895935, "answer_score": null, "sibling_qid": "MUM-2026-05-3219-Q003", "sibling_text": "me tc lubrication type", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Main-engine turbocharger overhaul — procedure and post-overhaul checks", "cross_family": false } ] }, { "qid": "MUM-2026-07-3717-Q009", "text": "Auto tensioning winch and its working principle?", "family": "Auxiliary Equipment", "subtopic": "Windlass / Winch", "tid": "MUM-2026-07-3717", "tray": "review", "candidates": [ { "answer_id": "WIND-WNCH-004", "score": 0.7695202231407166, "sibling_score": 0.7695202231407166, "answer_score": 0.5830185234546661, "sibling_qid": "MUM-2025-12-1818-Q001", "sibling_text": "auto tensioning of winch working principle", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Auto / constant-tension winch and troubleshooting", "cross_family": false }, { "answer_id": "WIND-WNCH-002", "score": 0.6000282168388367, "sibling_score": 0.6000282168388367, "answer_score": null, "sibling_qid": "KOC-2025-03-1031-Q020", "sibling_text": "windlass working", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Working: how the chain is lifted and the load handled", "cross_family": false }, { "answer_id": "DRG-B-010", "score": 0.4674788326025009, "sibling_score": null, "answer_score": 0.4674788326025009, "sibling_qid": "", "sibling_text": "ratchet deadman s handle and the self lowering wire ratchet and pawl the conventional no run back device the drum turns in the hoisting direction only against an applied brake other approved winches use a one way clutch or an automatically applied brake instead loss of power mid hoist should leave the boat where she is that is what the no run back arrangement buys you", "sibling_family": "", "via": "answer_title", "answer_title": "Ratchet, deadman's handle and the self-lowering wire", "cross_family": false } ] }, { "qid": "MUM-2026-07-3717-Q010", "text": "What r the indication that ur nut is fully tightened in keyless propeller?", "family": "Drydock & Underwater Surveys", "subtopic": "Propeller / Pilgrim Nut", "tid": "MUM-2026-07-3717", "tray": "review", "candidates": [ { "answer_id": "PROP-PIL-A-002", "score": 0.6728169322013855, "sibling_score": 0.6728169322013855, "answer_score": null, "sibling_qid": "KOL-2019-11-1501-Q002", "sibling_text": "keyed propeller problem how will u sure it loose feet or tight fit", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Bedding on the taper and fit verification", "cross_family": false }, { "answer_id": "PROP-PN-B-005", "score": 0.6579371690750122, "sibling_score": 0.6579371690750122, "answer_score": null, "sibling_qid": "KOL-2019-06-3245-Q005", "sibling_text": "keyless propeller fitting checks", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Checks before & after fitting (the 2/E's job)", "cross_family": false }, { "answer_id": "PROP-RP-003", "score": 0.6489161849021912, "sibling_score": 0.6489161849021912, "answer_score": 0.4574387580156326, "sibling_qid": "KOL-2018-05-1375-Q004", "sibling_text": "keyed propeller has passed the test what clearances u will check", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Keyed vs keyless — key, slot and clearance checks", "cross_family": false } ] }, { "qid": "MUM-2026-07-3717-Q011", "text": "What is ISO of fuel indicates?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Quality / CCAI", "tid": "MUM-2026-07-3717", "tray": "review", "candidates": [ { "answer_id": "FQCC-583-A-002", "score": 0.6758750677108765, "sibling_score": 0.6758750677108765, "answer_score": null, "sibling_qid": "MUM-2022-10-0055-Q002", "sibling_text": "bunker fuel under which iso", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "ISO 8217 — the standard, and what changed from 2017 to 2024", "cross_family": false }, { "answer_id": "FQCC-583-A-001", "score": 0.5591117739677429, "sibling_score": 0.5591117739677429, "answer_score": null, "sibling_qid": "KOL-2025-07-4060-Q002", "sibling_text": "who decided ccai vandium sulphur etc contain in marine fuel i said iso 8217", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "CCAI — what it is, how it is calculated, and what it is really for", "cross_family": false }, { "answer_id": "NBAB-574-002", "score": 0.5207883715629578, "sibling_score": 0.5207883715629578, "answer_score": null, "sibling_qid": "KOL-2022-05-4009-Q011", "sibling_text": "iso 8217 2017 ammendment in fuel oil", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Bunker analysis suggests used or burnt lubricating oil — which parameters and tests identify it?", "cross_family": true } ] }, { "qid": "MUM-2026-07-3718-Q002", "text": "Turning gear is hunting ?", "family": "Steering Gear & Hydraulics", "subtopic": "Follow-Up / Non Follow-Up", "tid": "MUM-2026-07-3718", "tray": "review", "candidates": [ { "answer_id": "STEER-055-A-003", "score": 0.6804483532905579, "sibling_score": 0.6804483532905579, "answer_score": 0.4052965372800827, "sibling_qid": "KOL-2022-07-1695-Q004", "sibling_text": "hunting in steering gear how is it caused working of hunting gear", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Hunting gear, floating lever and buffer spring", "cross_family": false }, { "answer_id": "TG-MOTOR-003", "score": 0.5978554487228394, "sibling_score": 0.5978554487228394, "answer_score": null, "sibling_qid": "MUM-2023-10-1406-Q007", "sibling_text": "started used in turning gear", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What starter is used on the turning gear motor, and why not a star-delta or a soft starter?", "cross_family": true }, { "answer_id": "TLM-218-003", "score": 0.5579153895378113, "sibling_score": 0.5579153895378113, "answer_score": 0.4106257513165474, "sibling_qid": "KOL-2025-05-2780-Q002", "sibling_text": "hunting gear and telemotor working", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Hunting gear, synchro and feedback in the control loop", "cross_family": false } ] }, { "qid": "MUM-2026-07-3718-Q005", "text": "Indications of crack cylinder head?", "family": "2-Stroke - Components (Other)", "subtopic": "Piston (Crown/Skirt/Inspection)", "tid": "MUM-2026-07-3718", "tray": "review", "candidates": [ { "answer_id": "PST-CSI-BF-011", "score": 0.7784574627876282, "sibling_score": 0.7784574627876282, "answer_score": 0.5792386889457702, "sibling_qid": "MUM-2026-06-3416-Q006", "sibling_text": "cylinder head crack how to know and your actions", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Detecting a crack in the piston crown, and the indications you would get", "cross_family": false }, { "answer_id": "CYL-LINER-P03-001", "score": 0.7699915170669556, "sibling_score": 0.7699915170669556, "answer_score": null, "sibling_qid": "MUM-2026-07-3718-Q004", "sibling_text": "crack cylinder head repair", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Cracked cylinder liner — can it be repaired, and what are the options?", "cross_family": false }, { "answer_id": "CCH-590-003", "score": 0.7695448994636536, "sibling_score": 0.7695448994636536, "answer_score": 0.5431064784526825, "sibling_qid": "MUM-2026-07-3736-Q004", "sibling_text": "crack cylinder head repair", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "A cylinder head or its cooling jacket is cracked. What is the first indication, what is your action, and how do you make port?", "cross_family": false } ] }, { "qid": "MUM-2026-07-3718-Q009", "text": "Change over fuel on ship LSMGO to MGO ?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "SOx Limit", "tid": "MUM-2026-07-3718", "tray": "new", "candidates": [ { "answer_id": "SOX-LIMIT-002", "score": 0.5356050133705139, "sibling_score": 0.5356050133705139, "answer_score": null, "sibling_qid": "CHE-2026-09-3933-Q002", "sibling_text": "duel fuel change over procedure", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "ECA / SECA limits, areas, and fuel changeover", "cross_family": false }, { "answer_id": "LPG-LNG-007", "score": 0.5127251148223877, "sibling_score": 0.5127251148223877, "answer_score": 0.3809079766273498, "sibling_qid": "KOC-2025-11-0718-Q002", "sibling_text": "lpg ship grade change procedure my type of ship is lpg", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Grade-change procedure, including LPG to ammonia", "cross_family": true }, { "answer_id": "SOX-LIMIT-006", "score": 0.5086645483970642, "sibling_score": 0.5086645483970642, "answer_score": null, "sibling_qid": "KOC-2023-12-0253-Q006", "sibling_text": "psc inspector boarded the vessel what all to show for compliance of fuel changeover being followed", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Proving Annex VI sulphur compliance — records and PSC evidence", "cross_family": false } ] }, { "qid": "MUM-2026-07-3718-Q011", "text": "Disadvantage of LSFO to MGO ?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "VIT Mechanism", "tid": "MUM-2026-07-3718", "tray": "new", "candidates": [ { "answer_id": "FQCC-583-A-009", "score": 0.4209715723991394, "sibling_score": 0.4209715723991394, "answer_score": 0.2656366527080536, "sibling_qid": "MUM-2022-08-1020-Q006", "sibling_text": "what are the problems with lsfo cross q", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "VLSFO problems and the 2/E's action on bad fuel", "cross_family": false }, { "answer_id": "VIT-MECH-A-001", "score": 0.39408284425735474, "sibling_score": 0.39408284425735474, "answer_score": null, "sibling_qid": "CHE-2026-05-0552-Q006S2", "sibling_text": "po ques vit disadvantage", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "VIT — what it is, why it is fitted, and its trade-offs", "cross_family": false }, { "answer_id": "FQCC-583-B-016", "score": 0.3857826590538025, "sibling_score": 0.3857826590538025, "answer_score": null, "sibling_qid": "MUM-2023-08-2183-Q005", "sibling_text": "mgo effects on engine what is the effect of using mgo over hfo", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "MGO effects on the engine — what changes when you come off HFO", "cross_family": false } ] }, { "qid": "MUM-2026-07-3719-Q004", "text": "Difference between EEZ and Territorial waters ?", "family": "Other Conventions", "subtopic": "UNCLOS", "tid": "MUM-2026-07-3719", "tray": "review", "candidates": [ { "answer_id": "UNCLOS-003", "score": 0.6649031043052673, "sibling_score": 0.6649031043052673, "answer_score": 0.46659383475780486, "sibling_qid": "KOL-2025-09-1054-Q007", "sibling_text": "territorial waters", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What are the maritime zones under UNCLOS — territorial waters, the contiguous zone and the international maritime boundary?", "cross_family": false }, { "answer_id": "UNCLOS-004", "score": 0.5878392457962036, "sibling_score": 0.5878392457962036, "answer_score": 0.41600053757429123, "sibling_qid": "KOL-2023-04-0742-Q004", "sibling_text": "continental shelf and unclos", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is the continental shelf under UNCLOS and what is its range?", "cross_family": false }, { "answer_id": "EEZ-PSSA-004", "score": 0.5342168211936951, "sibling_score": 0.5342168211936951, "answer_score": 0.4994716465473175, "sibling_qid": "KOL-2023-07-0759-Q004", "sibling_text": "indian coastal zones and limits not general limits", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Indian maritime zones — territorial sea, contiguous zone, EEZ", "cross_family": false } ] }, { "qid": "MUM-2026-07-3719-Q005", "text": "FTP and FSS code?", "family": "SOLAS - Fire Safety", "subtopic": "FSS Code", "tid": "MUM-2026-07-3719", "tray": "review", "candidates": [ { "answer_id": "FSS-CODE-001", "score": 0.6867711544036865, "sibling_score": 0.6867711544036865, "answer_score": null, "sibling_qid": "KOC-2025-07-0617-Q002", "sibling_text": "fss code and ftp code", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "What is the FSS Code, its status under SOLAS, and why is it a separate code rather than text inside Chapter II-2?", "cross_family": false }, { "answer_id": "A60-BCLASS-003", "score": 0.6744514107704163, "sibling_score": 0.6744514107704163, "answer_score": 0.2761719167232513, "sibling_qid": "KOC-2024-06-0352-Q014", "sibling_text": "ftp code", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "FTP Code and the standard fire test", "cross_family": false }, { "answer_id": "FSS-CODE-002", "score": 0.5750911831855774, "sibling_score": 0.5750911831855774, "answer_score": null, "sibling_qid": "KOC-2025-07-0627-Q006", "sibling_text": "fss code contents", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "How many chapters does the FSS Code have and what are they? Name the important chapters.", "cross_family": false } ] }, { "qid": "MUM-2026-07-3719-Q007", "text": "Type of safety valve on your ship ?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2026-07-3719", "tray": "review", "candidates": [ { "answer_id": "ACRV-005", "score": 0.7708031535148621, "sibling_score": 0.7708031535148621, "answer_score": 0.5051149010658263, "sibling_qid": "MUM-2026-06-3418-Q007", "sibling_text": "what is the type of safety valve in your ship", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.765802264213562, "sibling_score": 0.765802264213562, "answer_score": null, "sibling_qid": "MUM-2026-01-2904-Q004", "sibling_text": "type of safety valve on boiler ur ship valve type full explain", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "MR-DS-PV-B-006", "score": 0.6953321099281311, "sibling_score": 0.6953321099281311, "answer_score": null, "sibling_qid": "KOC-2026-09-2180-Q009", "sibling_text": "full bore safety valve construction", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "6. Deck isolating valve, deck relief/safety devices, and cargo-tank pressure", "cross_family": false } ] }, { "qid": "MUM-2026-07-3719-Q008", "text": "⁠it’s lift ?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2026-07-3719", "tray": "new", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-003", "score": 0.4752105176448822, "sibling_score": 0.4752105176448822, "answer_score": null, "sibling_qid": "KOL-2017-02-1842-Q002", "sibling_text": "accumulation of pr test wen it shud b carried blow down and hw it is controlled constructional difference in high lift n improved high lift", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "The accumulation test and the safety valve — required lift, how lift and capacity are verified, and why accumulation must stay inside the limit", "cross_family": false }, { "answer_id": "ACRV-001", "score": 0.4730399250984192, "sibling_score": 0.4730399250984192, "answer_score": null, "sibling_qid": "KOL-2017-02-3036-Q002", "sibling_text": "comp 1 st rlf walv lifting", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "First-stage relief valve lifting or leaking — reasons and checks", "cross_family": true }, { "answer_id": "BLR-SURV-P02-001", "score": 0.46488747000694275, "sibling_score": 0.46488747000694275, "answer_score": null, "sibling_qid": "CHE-2026-05-0601-Q009", "sibling_text": "improved high lift safety v v construction o haul and checks", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "MUM-2026-07-3719-Q009", "text": "⁠lip clearance ?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2026-07-3719", "tray": "review", "candidates": [ { "answer_id": "SGRS-328-005", "score": 0.7016152739524841, "sibling_score": 0.7016152739524841, "answer_score": 0.34427307844161986, "sibling_qid": "MUM-2026-06-3405-Q018", "sibling_text": "lip clearance and it s significance", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What is steering gear ram seal lip clearance, and why is it significant?", "cross_family": false }, { "answer_id": "CYL-LINER-P04-002", "score": 0.43509840965270996, "sibling_score": 0.43509840965270996, "answer_score": null, "sibling_qid": "KOL-2023-08-3630-Q010", "sibling_text": "name of tool used for liner clearance", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Judging, measuring, removing & discarding a cylinder liner", "cross_family": true }, { "answer_id": "AEDEC-291-007", "score": 0.43370649218559265, "sibling_score": 0.43370649218559265, "answer_score": null, "sibling_qid": "KOL-2018-02-3124-Q005", "sibling_text": "ae liner removal", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "7. Liner / piston / manifold-bolt removal problems", "cross_family": true } ] }, { "qid": "MUM-2026-07-3719-Q010", "text": "⁠speciality of improved high lift valve ?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2026-07-3719", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.7512965202331543, "sibling_score": 0.7512965202331543, "answer_score": null, "sibling_qid": "MUM-2026-06-3405-Q017", "sibling_text": "improved high lift safety valve details", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "VTAP-003", "score": 0.4229583442211151, "sibling_score": null, "answer_score": 0.4229583442211151, "sibling_qid": "", "sibling_text": "what decides the virtual tappet setting and what happens if it increases decided by oil temperature and viscosity actuator leakage and the maker s target opening closing timing for the load increase more oil held valve opens earlier closes later longer exhaust open period representative direction", "sibling_family": "", "via": "answer_title", "answer_title": "What decides the virtual tappet setting, and what happens if it increases?", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.41798600703477856, "sibling_score": null, "answer_score": 0.41798600703477856, "sibling_qid": "", "sibling_text": "exhaust valve hydraulic actuator operation and actuator valves two stage actuator first stage uses both pistons for the high force to crack the valve against firing pressure the lighter second stage completes the lift exact force split is maker specific opening medium is the engine lube oil filtered and pressurised by the hydraulic power supply hps closing is by the air spring not a steel spring", "sibling_family": "", "via": "answer_title", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false } ] }, { "qid": "MUM-2026-07-3719-Q013", "text": "⁠unit of NPSH?", "family": "Pumps - Centrifugal & PD", "subtopic": "Cavitation / NPSH", "tid": "MUM-2026-07-3719", "tray": "review", "candidates": [ { "answer_id": "NPSH-001", "score": 0.6722719073295593, "sibling_score": 0.6722719073295593, "answer_score": 0.36469075083732605, "sibling_qid": "CHE-2026-05-0639-Q009", "sibling_text": "npsh", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "What is NPSH, and what are its types?", "cross_family": false }, { "answer_id": "NPSH-004", "score": 0.33684275448322293, "sibling_score": null, "answer_score": 0.33684275448322293, "sibling_qid": "", "sibling_text": "what parameters affect npsh can npsh be changed what is the effect on npsh if the discharge head is increased parameters affecting npsha surface atmospheric pressure static suction head suction friction liquid temperature vapour pressure and flow rate npsha is a system quantity the operator or designer can improve npshr is supplied by the maker for the stated speed liquid and condition changing sp", "sibling_family": "", "via": "answer_title", "answer_title": "What parameters affect NPSH? Can NPSH be changed? What is the effect on NPSH if the discharge head is increased?", "cross_family": false }, { "answer_id": "PCD-P01-04", "score": 0.33661046028137204, "sibling_score": null, "answer_score": 0.33661046028137204, "sibling_qid": "", "sibling_text": "centrifugal pump characteristic curves h q efficiency power npsh operating point parallel running h q curve head falls with rising flow shut off head at q 0 runout at h 0 flow q is volumetric flow so pump discharge is stated in m h for the same q mass flow changes with fluid density", "sibling_family": "", "via": "answer_title", "answer_title": "Centrifugal pump characteristic curves — H-Q, efficiency, power, NPSH, operating point, parallel running", "cross_family": false } ] }, { "qid": "MUM-2026-07-3720-Q001", "text": "Type of vessel sailed?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-07-3720", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8419500589370728, "sibling_score": 0.8419500589370728, "answer_score": null, "sibling_qid": "CHE-2026-02-0481-Q001", "sibling_text": "type of vessels sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8252046704292297, "sibling_score": 0.8252046704292297, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.8038274645805359, "sibling_score": 0.8038274645805359, "answer_score": null, "sibling_qid": "CHE-2026-03-0255-Q001", "sibling_text": "type of vessel and engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "MUM-2026-07-3720-Q003", "text": "VIT vs SUPER VIT?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "VIT Mechanism", "tid": "MUM-2026-07-3720", "tray": "review", "candidates": [ { "answer_id": "VIT-MECH-D-001", "score": 0.7258097529411316, "sibling_score": 0.7258097529411316, "answer_score": 0.2882743179798126, "sibling_qid": "MUM-2025-07-2814-Q002", "sibling_text": "super vit and vit", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Super-VIT — construction and working (double-thread / upper-lower thread)", "cross_family": false }, { "answer_id": "VIT-MECH-A-003", "score": 0.7222966551780701, "sibling_score": 0.7222966551780701, "answer_score": 0.33454489111900326, "sibling_qid": "KOL-2018-06-1383-Q006", "sibling_text": "vit super vit difference", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Conventional VIT vs Super-VIT — what actually differs", "cross_family": false }, { "answer_id": "VIT-MECH-B-001", "score": 0.2908056154847145, "sibling_score": null, "answer_score": 0.2908056154847145, "sibling_qid": "", "sibling_text": "the vit super vit curve breakpoint range and load dependent advance retard vit varies thestart of injection only the fuel index sets quantity never confuse the two purpose hold pmax at its design ceiling over a wider part load band improving sfoc without exceeding the firing pressure limit", "sibling_family": "", "via": "answer_title", "answer_title": "The VIT / Super VIT curve — breakpoint, range and load-dependent advance/retard", "cross_family": false } ] }, { "qid": "MUM-2026-07-3720-Q005", "text": "Crank shaft material. Process involved in making?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft / Crankpin", "tid": "MUM-2026-07-3720", "tray": "review", "candidates": [ { "answer_id": "HT-A-001", "score": 0.7536291480064392, "sibling_score": 0.7536291480064392, "answer_score": null, "sibling_qid": "MUM-2026-03-2609-Q005", "sibling_text": "crankshaft material and heat treatment process", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Heat treatment: what it is, the main methods, and why it is done", "cross_family": false }, { "answer_id": "CRANK-217-001", "score": 0.7268672585487366, "sibling_score": 0.7268672585487366, "answer_score": 0.4812152475118637, "sibling_qid": "MUM-2026-05-3266-Q006", "sibling_text": "material of crankshaft", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankshaft types and how the type is identified", "cross_family": false }, { "answer_id": "CRANK-217-002", "score": 0.5311429470777511, "sibling_score": null, "answer_score": 0.5311429470777511, "sibling_qid": "", "sibling_text": "semi built crankshaft construction fitting and comparison throw two webs crankpin as one piece forged or cast steel in some designs per maker class main journals machined separately and shrink fitted into the bored webs fit made by heating the web bore expands and or chilling the journal interference grips on cooling no key no dowel", "sibling_family": "", "via": "answer_title", "answer_title": "Semi-built crankshaft: construction, fitting and comparison", "cross_family": false } ] }, { "qid": "MUM-2026-07-3720-Q008", "text": "Types of starter?", "family": "Electrical - Motors & Starters", "subtopic": "Type of Starter Decision", "tid": "MUM-2026-07-3720", "tray": "review", "candidates": [ { "answer_id": "STR-DEC-A-001", "score": 0.774749219417572, "sibling_score": 0.774749219417572, "answer_score": 0.3835104316473007, "sibling_qid": "MUM-2022-07-1340-Q003", "sibling_text": "starter types", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "IMSP-002", "score": 0.753061830997467, "sibling_score": 0.753061830997467, "answer_score": 0.3582743644714355, "sibling_qid": "MUM-2026-05-3240-Q003", "sibling_text": "starters type", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What types of starter are used onboard? Name and explain the starting methods for a three-phase induction motor, including the soft starter.", "cross_family": false }, { "answer_id": "SOFTSTART-P02-003", "score": 0.4285929352045059, "sibling_score": null, "answer_score": 0.4285929352045059, "sibling_qid": "", "sibling_text": "types of starter and types of soft starter starter families dol full voltage star delta autotransformer korndorfer primary resistance reactor rotor resistance slip ring wound rotor motors only electronic soft starter vfd is a separate class running speed control not merely a softer start", "sibling_family": "", "via": "answer_title", "answer_title": "Types of starter, and types of soft starter", "cross_family": false } ] }, { "qid": "MUM-2026-07-3720-Q010", "text": "Thyristor?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Thyristor / SCR", "tid": "MUM-2026-07-3720", "tray": "review", "candidates": [ { "answer_id": "SCR-306-A-001", "score": 0.7800770401954651, "sibling_score": 0.7800770401954651, "answer_score": 0.5280664801597595, "sibling_qid": "KOL-2016-10-2076-Q004", "sibling_text": "thyristor everything", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What an SCR is and how it works", "cross_family": false }, { "answer_id": "SCR-306-A-006", "score": 0.5429744482040405, "sibling_score": null, "answer_score": 0.5429744482040405, "sibling_qid": "", "sibling_text": "types of thyristor scr scr standard unidirectional gate turn on only no gate turn off gto gate turn off turned off by a negative gate pulse suits choppers and inverters", "sibling_family": "", "via": "answer_title", "answer_title": "Types of thyristor / SCR", "cross_family": false }, { "answer_id": "SCR-306-B-002", "score": 0.5378512084484101, "sibling_score": null, "answer_score": 0.5378512084484101, "sibling_qid": "", "sibling_text": "testing and maintenance of an scr thyristor anode to cathode a healthy scr reads high resistance in both directions until it is gated it blocks both ways gate to cathode junction diode like low one way high the reverse way", "sibling_family": "", "via": "answer_title", "answer_title": "Testing and maintenance of an SCR / thyristor", "cross_family": false } ] }, { "qid": "MUM-2026-07-3720-Q011", "text": "SOLAS regulation for battery?", "family": "Electrical - Batteries & DC Systems", "subtopic": "Emergency Battery / SOLAS", "tid": "MUM-2026-07-3720", "tray": "review", "candidates": [ { "answer_id": "EDG-P01-001", "score": 0.8069360852241516, "sibling_score": 0.8069360852241516, "answer_score": null, "sibling_qid": "KOL-2024-08-2727-Q001", "sibling_text": "solas requirement for battery", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "Emergency source of power — the SOLAS requirements", "cross_family": false }, { "answer_id": "BDC-P06-01", "score": 0.7696230411529541, "sibling_score": 0.7696230411529541, "answer_score": 0.5125782072544097, "sibling_qid": "MUM-2026-05-3350-Q004", "sibling_text": "solas regulation battery room", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "Battery-room hazards, requirements and entry precautions", "cross_family": false }, { "answer_id": "bdc-p05-03", "score": 0.7267937064170837, "sibling_score": 0.7267937064170837, "answer_score": null, "sibling_qid": "CHE-2026-04-0151-Q015S2", "sibling_text": "what is the solas regulation for gmdss battery", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "CQ-BDC-025 GMDSS reserve battery — requirement, supply, voltage and equipment Medium", "cross_family": false } ] }, { "qid": "MUM-2026-07-3721-Q002", "text": "Inter cooler function ?", "family": "Heat Exchangers & Coolers", "subtopic": "Air Cooler / JCW Cooler", "tid": "MUM-2026-07-3721", "tray": "new", "candidates": [ { "answer_id": "ACJCW-001", "score": 0.569074809551239, "sibling_score": 0.569074809551239, "answer_score": 0.4000987201929092, "sibling_qid": "KOL-2018-08-0209-Q003", "sibling_text": "air cooler function", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Function of the air cooler, intercooler and aftercooler", "cross_family": false }, { "answer_id": "ACJCW-011", "score": 0.5623921751976013, "sibling_score": 0.5623921751976013, "answer_score": null, "sibling_qid": "MUM-2025-11-2871-Q004", "sibling_text": "sea water cooling air cooler jacker lo cooler which first", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Sea-water cooling order: air cooler, jacket-water cooler or lube-oil cooler first", "cross_family": false }, { "answer_id": "STHX-001", "score": 0.5581832528114319, "sibling_score": 0.5581832528114319, "answer_score": null, "sibling_qid": "MUM-2026-02-1280-Q006", "sibling_text": "type of cooler type of flow", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "STHX-01 — Construction, parts, materials, tube fitting, pass arrangement and flow", "cross_family": false } ] }, { "qid": "MUM-2026-07-3721-Q003", "text": "Pulse lubrication ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Alpha Lubricator", "tid": "MUM-2026-07-3721", "tray": "review", "candidates": [ { "answer_id": "ALPHA-LUB-B-002", "score": 0.7704050540924072, "sibling_score": 0.7704050540924072, "answer_score": 0.47730348408222195, "sibling_qid": "KOL-2019-02-1440-Q003", "sibling_text": "pulse lubrication alpha lubrication", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Alpha, Pulse, intelligent and adaptive lubrication — and latest developments", "cross_family": false }, { "answer_id": "CYL-LUB-A-004", "score": 0.7621847987174988, "sibling_score": 0.7621847987174988, "answer_score": null, "sibling_qid": "MUM-2026-06-3450-Q010", "sibling_text": "what is pulse lubrication how pulse is generated", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Types of cylinder lubrication system", "cross_family": false }, { "answer_id": "CYL-LUB-A-002", "score": 0.7129493355751038, "sibling_score": 0.7129493355751038, "answer_score": null, "sibling_qid": "KOL-2017-05-3054-Q002", "sibling_text": "pulse lubrication and how u adjust the quantity", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Feed-rate control — quantity, timing and load/rpm-dependent dosing", "cross_family": false } ] }, { "qid": "MUM-2026-07-3721-Q004", "text": "Load dependent liner lubrication ?", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "MUM-2026-07-3721", "tray": "review", "candidates": [ { "answer_id": "CYL-LUB-A-002", "score": 0.6855528354644775, "sibling_score": 0.6855528354644775, "answer_score": null, "sibling_qid": "MUM-2025-12-1234-Q002", "sibling_text": "load dependent cyl lubrication", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Feed-rate control — quantity, timing and load/rpm-dependent dosing", "cross_family": true }, { "answer_id": "CYL-LUB-A-001", "score": 0.6658656001091003, "sibling_score": 0.6658656001091003, "answer_score": null, "sibling_qid": "MUM-2026-05-3002-Q004S2", "sibling_text": "lubrication type of lubrication in liner", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Cylinder lubrication — how it is carried out and its purpose", "cross_family": true }, { "answer_id": "CYL-LUB-B-004", "score": 0.652313232421875, "sibling_score": 0.652313232421875, "answer_score": null, "sibling_qid": "CHE-2025-08-0212-Q004", "sibling_text": "why liner lubrication depends on rpm and load dependent expecting more load more fuel more sulphur to neturalize so more injection", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Feed rate, over- and under-lubrication, sufficiency checks", "cross_family": true } ] }, { "qid": "MUM-2026-07-3722-Q001", "text": "Entering engine room how to find out which AVR is fitted and location ?", "family": "Electrical - Generator & Alternator", "subtopic": "", "tid": "MUM-2026-07-3722", "tray": "review", "candidates": [ { "answer_id": "AVR-EXC-H-001", "score": 0.6948243975639343, "sibling_score": 0.6948243975639343, "answer_score": 0.49787431359291073, "sibling_qid": "MUM-2024-02-1429-Q002", "sibling_text": "where is the avr located", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "AVR — location, components and fault checks", "cross_family": false }, { "answer_id": "AVR-EXC-C-001", "score": 0.6176707148551941, "sibling_score": 0.6176707148551941, "answer_score": null, "sibling_qid": "MUM-2026-06-3456-Q010", "sibling_text": "types of avr onboard", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Types of AVR / excitation and how one is selected", "cross_family": false }, { "answer_id": "AVR-EXC-B-001", "score": 0.604585587978363, "sibling_score": 0.604585587978363, "answer_score": null, "sibling_qid": "KOL-2022-05-2569-Q005", "sibling_text": "avr details", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Explain the AVR working principle and control-loop operation.", "cross_family": false } ] }, { "qid": "MUM-2026-07-3722-Q003", "text": "How to order new welding machine ? ", "family": "Workshop & Welding", "subtopic": "Plasma / Arc / TIG / MIG", "tid": "MUM-2026-07-3722", "tray": "review", "candidates": [ { "answer_id": "WBS-C-002", "score": 0.8227846622467041, "sibling_score": 0.8227846622467041, "answer_score": null, "sibling_qid": "KOC-2025-07-1543-Q005", "sibling_text": "welding machine ordering", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "The arc welding set — transformer construction, output, current control and ordering parameters", "cross_family": false }, { "answer_id": "LH-ELEC-003", "score": 0.6981979012489319, "sibling_score": 0.6981979012489319, "answer_score": 0.41041384935379027, "sibling_qid": "CHE-2026-05-0531-Q007", "sibling_text": "how to order welding rod and defects", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "3. How do you select or order the correct welding electrode or rod?", "cross_family": false }, { "answer_id": "WELD-PATM-009", "score": 0.6394290328025818, "sibling_score": 0.6394290328025818, "answer_score": 0.4010001331567764, "sibling_qid": "KOL-2016-07-2062-Q001", "sibling_text": "1specification for order welding transformer", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding machine / transformer – specification and safety", "cross_family": false } ] }, { "qid": "MUM-2026-07-3722-Q004", "text": "min max ampere ?", "family": "Workshop & Welding", "subtopic": "Plasma / Arc / TIG / MIG", "tid": "MUM-2026-07-3722", "tray": "new", "candidates": [ { "answer_id": "AVR-EXC-H-002", "score": 0.5662263035774231, "sibling_score": 0.5662263035774231, "answer_score": null, "sibling_qid": "KOC-2021-09-1146-Q007", "sibling_text": "small voltage adjustments max 2 volts", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Voltage trimmer — adjustment and biasing", "cross_family": true }, { "answer_id": "ELEC-SAFE-008", "score": 0.5628054141998291, "sibling_score": 0.5628054141998291, "answer_score": null, "sibling_qid": "KOL-2021-02-2425-Q004", "sibling_text": "minimum fatal current for ac and dc", "sibling_family": "", "via": "sibling", "answer_title": "Effects of electric shock; fatal/minimum current for AC and DC", "cross_family": false }, { "answer_id": "GMC-583-B-005", "score": 0.5551862716674805, "sibling_score": 0.5551862716674805, "answer_score": null, "sibling_qid": "MUM-2023-05-1386-Q012", "sibling_text": "amps different what could be the reason", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Proving a meter faulty, and getting the reading another way", "cross_family": true } ] }, { "qid": "MUM-2026-07-3722-Q008", "text": "Comparing power factor of 0.8 and 0.9 effect on generator ?", "family": "Electrical - Generator & Alternator", "subtopic": "Power Factor", "tid": "MUM-2026-07-3722", "tray": "new", "candidates": [ { "answer_id": "GEN-LSI-B-001", "score": 0.6401669383049011, "sibling_score": 0.6401669383049011, "answer_score": 0.4296800822019577, "sibling_qid": "KOL-2026-10-4316-Q001", "sibling_text": "generator kw same current pf different reason", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01. Two alternators in parallel — same kW but different current and power factor: cause and correction", "cross_family": false }, { "answer_id": "PF-B-002", "score": 0.6382976174354553, "sibling_score": 0.6382976174354553, "answer_score": null, "sibling_qid": "KOL-2020-10-2397-Q003", "sibling_text": "power factor effect of low and high power factor how it can be improved what will be effect on reading in ampere meter on generator panel if power factor lower than 0 8", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Improving power factor on board", "cross_family": false }, { "answer_id": "PF-C-002", "score": 0.4326135754585266, "sibling_score": null, "answer_score": 0.4326135754585266, "sibling_qid": "", "sibling_text": "two alternators in parallel same kw different power factor cause and action", "sibling_family": "", "via": "answer_title", "answer_title": "Two alternators in parallel — same kW, different power factor: cause and action", "cross_family": false } ] }, { "qid": "MUM-2026-07-3723-Q001", "text": "Name ,company, function, cleared, no. Of attempts ?", "family": "IMO Structure & Conventions", "subtopic": "IMO / Committees / Codes", "tid": "MUM-2026-07-3723", "tray": "new", "candidates": [ { "answer_id": "IMO-CODES-P03-002", "score": 0.4525984823703766, "sibling_score": 0.4525984823703766, "answer_score": null, "sibling_qid": "KOC-2026-04-0892-Q002", "sibling_text": "function name", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": false }, { "answer_id": "IMO-5PIL-007", "score": 0.3977351188659668, "sibling_score": 0.3977351188659668, "answer_score": null, "sibling_qid": "MUM-2022-09-0044-Q011", "sibling_text": "all code name", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Codes, protocols and amendments", "cross_family": false }, { "answer_id": "SMSFR-002", "score": 0.3780399262905121, "sibling_score": 0.3780399262905121, "answer_score": null, "sibling_qid": "MUM-2022-10-0056-Q005", "sibling_text": "your company sms policy full", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the Safety Management System — the SMS manual, its contents, objectives, why it is needed onboard, and the company SMS policy?", "cross_family": true } ] }, { "qid": "MUM-2026-07-3723-Q002", "text": "Engine type ?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-07-3723", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.8324224948883057, "sibling_score": 0.8324224948883057, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.8043279051780701, "sibling_score": 0.8043279051780701, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-001", "score": 0.463600355386734, "sibling_score": null, "answer_score": 0.463600355386734, "sibling_qid": "", "sibling_text": "1 turbocharger type main engine vs generator engine compressor is centrifugal in both cases only the turbine type differs large slow speed main engine axial flow turbine single stage constant pressure system", "sibling_family": "", "via": "answer_title", "answer_title": "1. Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "MUM-2026-07-3723-Q004", "text": "Boiler type? Safety valve type? Lift of safety valve?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2026-07-3723", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.8864770531654358, "sibling_score": 0.8864770531654358, "answer_score": null, "sibling_qid": "MUM-2026-07-3737-Q004", "sibling_text": "boiler type safety valve type lift of safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACRV-005", "score": 0.7489326596260071, "sibling_score": 0.7489326596260071, "answer_score": null, "sibling_qid": "MUM-2026-06-3357-Q006", "sibling_text": "safety valve boiler types and construction boiler water", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": false }, { "answer_id": "ACSS-002", "score": 0.534608918428421, "sibling_score": null, "answer_score": 0.534608918428421, "sibling_qid": "", "sibling_text": "relief safety valves settings testing lifting reasons bursting disc set just above stage working pressure the class standard accumulation limit is about 10 though the exact set point is a maker sms value non isolable from its stage test to the maker s method easing gear or test rig for lifting pressure log and reset", "sibling_family": "", "via": "answer_title", "answer_title": "Relief / safety valves: settings, testing, lifting reasons; bursting disc", "cross_family": false } ] }, { "qid": "MUM-2026-07-3723-Q005", "text": "Lift of full bore safety valve?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2026-07-3723", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.700568437576294, "sibling_score": 0.700568437576294, "answer_score": null, "sibling_qid": "MUM-2026-07-3737-Q004", "sibling_text": "boiler type safety valve type lift of safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "MR-DS-PV-B-006", "score": 0.6892693638801575, "sibling_score": 0.6892693638801575, "answer_score": null, "sibling_qid": "KOC-2026-09-2180-Q009", "sibling_text": "full bore safety valve construction", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "6. Deck isolating valve, deck relief/safety devices, and cargo-tank pressure", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-002", "score": 0.673129141330719, "sibling_score": 0.673129141330719, "answer_score": null, "sibling_qid": "KOL-2026-02-3922-Q005", "sibling_text": "what is lifting of safety valve tell only within 3 percent of designated set pressure nothing else", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Acceptance limits and durations — the accumulation limit, the maximum test periods, and the action if the limit is exceeded", "cross_family": false } ] }, { "qid": "MUM-2026-07-3723-Q006", "text": "Why lift is D/4?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2026-07-3723", "tray": "new", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-003", "score": 0.40242838859558105, "sibling_score": 0.40242838859558105, "answer_score": null, "sibling_qid": "KOL-2017-02-1842-Q002", "sibling_text": "accumulation of pr test wen it shud b carried blow down and hw it is controlled constructional difference in high lift n improved high lift", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "The accumulation test and the safety valve — required lift, how lift and capacity are verified, and why accumulation must stay inside the limit", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.3809618353843689, "sibling_score": 0.3809618353843689, "answer_score": null, "sibling_qid": "KOL-2026-01-3900-Q004", "sibling_text": "diff between improved high lift and high lift", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "BWM-D1D2-P04-002", "score": 0.375161349773407, "sibling_score": 0.375161349773407, "answer_score": null, "sibling_qid": "KOC-2022-01-0048-Q013", "sibling_text": "bwms code explain d1 d2 d4", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "D-2 standard and the BWMS Code (ex-G8) — type approval of treatment systems", "cross_family": true } ] }, { "qid": "MUM-2026-07-3723-Q007", "text": "What is thrust block, thrust collar, thrust pad?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Thrust Bearing", "tid": "MUM-2026-07-3723", "tray": "review", "candidates": [ { "answer_id": "THRUST-BRG-B-001", "score": 0.8116800785064697, "sibling_score": 0.8116800785064697, "answer_score": 0.496881502866745, "sibling_qid": "MUM-2026-07-3737-Q007", "sibling_text": "what is thrust block thrust collar thrust pad", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Thrust block — construction, location and how thrust reaches the hull", "cross_family": false }, { "answer_id": "TB-BEAR-001", "score": 0.682041585445404, "sibling_score": 0.682041585445404, "answer_score": null, "sibling_qid": "MUM-2026-05-3001-Q006", "sibling_text": "thrust block", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Thrust bearing clearance — measurement procedure & value", "cross_family": false }, { "answer_id": "THRUST-BRG-B-002", "score": 0.6421720385551453, "sibling_score": 0.6421720385551453, "answer_score": null, "sibling_qid": "KOL-2020-01-3977-Q009", "sibling_text": "thrust pad material", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Thrust pads — lubrication and material", "cross_family": false } ] }, { "qid": "MUM-2026-07-3724-Q002", "text": "⁠connecting rod bottom end clearance?", "family": "2-Stroke - Components (Other)", "subtopic": "Running Clearances (Bumping/Jumping)", "tid": "MUM-2026-07-3724", "tray": "review", "candidates": [ { "answer_id": "BEB-B-002", "score": 0.8559587597846985, "sibling_score": 0.8559587597846985, "answer_score": 0.5279426574707031, "sibling_qid": "MUM-2026-04-2955-Q003", "sibling_text": "connecting rod bottom end clearance", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Bottom End Bearing — Clearance Measurement", "cross_family": false }, { "answer_id": "AECR-651-004", "score": 0.6809118390083313, "sibling_score": 0.6809118390083313, "answer_score": null, "sibling_qid": "MUM-2026-06-3353-Q004", "sibling_text": "ae bottom end bearing clearance hook up piston", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "How do you inspect the bottom-end bearing, and how do you take the AE big-end clearance without removing it?", "cross_family": true }, { "answer_id": "CXH-BRG-FINAL-1-006", "score": 0.6679534912109375, "sibling_score": 0.6679534912109375, "answer_score": 0.5104155659675598, "sibling_qid": "KOL-2018-04-3141-Q002", "sibling_text": "crosshead clearance and bottom end bearing clearance", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead & guide-shoe clearances: how, where, how much, piston position & why", "cross_family": true } ] }, { "qid": "MUM-2026-07-3724-Q008", "text": "⁠backup ring material?", "family": "Workshop & Welding", "subtopic": "Welding / NDT / Materials", "tid": "MUM-2026-07-3724", "tray": "new", "candidates": [ { "answer_id": "GKT-MAT-004", "score": 0.5571747422218323, "sibling_score": 0.5571747422218323, "answer_score": 0.3820335268974304, "sibling_qid": "MUM-2026-04-2955-Q005", "sibling_text": "backup ring and o ring difference", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "O-ring versus back-up ring — what each does", "cross_family": false }, { "answer_id": "CYL-LINER-P04-005", "score": 0.4649287462234497, "sibling_score": 0.4649287462234497, "answer_score": null, "sibling_qid": "KOL-2021-04-1583-Q001", "sibling_text": "flame ring purpose material", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Anti-polishing / flame / fire ring — location, purpose, material", "cross_family": true }, { "answer_id": "OGEE-RING-001", "score": 0.4593731760978699, "sibling_score": 0.4593731760978699, "answer_score": null, "sibling_qid": "MUM-2026-07-3713-Q001", "sibling_text": "ogee ring function and material", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "The ogee ring: what it is, where it sits, its purpose, and how it's formed and connected", "cross_family": true } ] }, { "qid": "MUM-2026-07-3725-Q001", "text": "Type of ship sailed ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-07-3725", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8459892868995667, "sibling_score": 0.8459892868995667, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8450009822845459, "sibling_score": 0.8450009822845459, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7928504347801208, "sibling_score": 0.7928504347801208, "answer_score": null, "sibling_qid": "CHE-2026-03-0253-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "MUM-2026-07-3725-Q003", "text": "What is stealer plate? Where it is present on ship proper location?", "family": "Workshop & Welding", "subtopic": "Plate Renewal / Doubler", "tid": "MUM-2026-07-3725", "tray": "review", "candidates": [ { "answer_id": "SHELL-PLT-B-002", "score": 0.6980553865432739, "sibling_score": 0.6980553865432739, "answer_score": 0.4852065026760101, "sibling_qid": "KOL-2026-04-1214-Q005", "sibling_text": "what is stealer plate where it is present on ship correct location", "sibling_family": "", "via": "sibling", "answer_title": "Stealer plate and strake nesting", "cross_family": false }, { "answer_id": "SHELL-PLT-B-004", "score": 0.40742819756269455, "sibling_score": null, "answer_score": 0.40742819756269455, "sibling_qid": "", "sibling_text": "special shell plates oxter coffin shoe fish shedder oxter plate double curvature shell plate at the stern quarter continuing shell plating immediately above the propeller aperture around the stern frame boss also called tuck plate furnace worked to shape coffin plate connects the stern frame to the flat plate keel at the after end the aftmost keel plate dished around the stern frame extension carr", "sibling_family": "", "via": "answer_title", "answer_title": "Special shell plates — oxter, coffin, shoe, fish, shedder", "cross_family": false }, { "answer_id": "MOB-MKR-002", "score": 0.40044440031051637, "sibling_score": null, "answer_score": 0.40044440031051637, "sibling_qid": "", "sibling_text": "where is the mob marker stowed what is its exact location and what is the plate it rests on both bridge wings one each side equal distribution both sides is solas iii 7 1 3 quick release from the navigation bridge is the statutory requirement not the wing as such", "sibling_family": "", "via": "answer_title", "answer_title": "Where is the MOB marker stowed, what is its exact location, and what is the plate it rests on?", "cross_family": false } ] }, { "qid": "MUM-2026-07-3725-Q004", "text": "Height certificate for freefall lifeboat?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Lifeboat Static / Dynamic Test", "tid": "MUM-2026-07-3725", "tray": "review", "candidates": [ { "answer_id": "LB-D-005", "score": 0.8472424149513245, "sibling_score": 0.8472424149513245, "answer_score": null, "sibling_qid": "KOL-2026-04-1214-Q006", "sibling_text": "height certificate for freefall lifeboat", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Free-fall lifeboat — safety arrangements / safeties", "cross_family": false }, { "answer_id": "LB-DAVIT-HRU-008", "score": 0.6428704857826233, "sibling_score": 0.6428704857826233, "answer_score": null, "sibling_qid": "KOC-2026-10-2223-Q005", "sibling_text": "safeties in freefall lifeboat davit", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat davit safety devices", "cross_family": false }, { "answer_id": "LB-D-003", "score": 0.6412105560302734, "sibling_score": 0.6412105560302734, "answer_score": 0.46852159798145293, "sibling_qid": "KOC-2022-04-0072-Q022", "sibling_text": "life boat type freefall", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Free-fall lifeboat — why this type, why at the stern, stowage", "cross_family": false } ] }, { "qid": "MUM-2026-07-3725-Q006", "text": "What are cargo hold safeties for car carrier ?", "family": "SOLAS - Fire Safety", "subtopic": "Cargo Hold Fire", "tid": "MUM-2026-07-3725", "tray": "review", "candidates": [ { "answer_id": "CH-FIRE-004", "score": 0.7879375219345093, "sibling_score": 0.7879375219345093, "answer_score": null, "sibling_qid": "KOL-2026-04-1214-Q008", "sibling_text": "what are cargo hold safeties for car carrier", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Cargo hold fire emergency action and firefighting procedure", "cross_family": false }, { "answer_id": "TNK-SAFE-BF26-002", "score": 0.647943913936615, "sibling_score": 0.647943913936615, "answer_score": null, "sibling_qid": "MUM-2026-05-3321-Q006", "sibling_text": "cargo hold electrical safeties", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "What safeties are provided on the cargo tanks of an oil, crude or chemical tanker?", "cross_family": false }, { "answer_id": "LSA-CODE-BF044-004", "score": 0.619843065738678, "sibling_score": 0.619843065738678, "answer_score": null, "sibling_qid": "KOL-2021-01-0465-Q001", "sibling_text": "escape routes and regulations for cargo hold in car carrier discussion about how it was on my ship", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "What is the regulation for the use of the emergency escape route and escape appliances?", "cross_family": false } ] }, { "qid": "MUM-2026-07-3725-Q008", "text": "1micron equals how many meter?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Filter", "tid": "MUM-2026-07-3725", "tray": "review", "candidates": [ { "answer_id": "FLT-BF052-005", "score": 0.7854825854301453, "sibling_score": 0.7854825854301453, "answer_score": null, "sibling_qid": "KOL-2026-04-1214-Q010", "sibling_text": "1micron equals how many meter", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "What type of fuel filter is fitted, and what is a micron in filter rating?", "cross_family": false }, { "answer_id": "MICR-002", "score": 0.5314634442329407, "sibling_score": 0.5314634442329407, "answer_score": null, "sibling_qid": "KOL-2026-04-3949-Q005", "sibling_text": "inside micro meter zero calibration", "sibling_family": "Gauges & Tools", "via": "sibling", "answer_title": "Zero setting, calibration, error check and trueness", "cross_family": true }, { "answer_id": "GAS-DET-008", "score": 0.5050037503242493, "sibling_score": 0.5050037503242493, "answer_score": null, "sibling_qid": "KOC-2024-01-1326-Q001", "sibling_text": "1 explosion meter", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Explosimeter: construction, working, calibration, gases detected", "cross_family": true } ] }, { "qid": "MUM-2026-07-3726-Q001", "text": "How load sharing takes place?", "family": "2-Stroke - Reversing & Maneuvering", "subtopic": "Reversing Procedure", "tid": "MUM-2026-07-3726", "tray": "new", "candidates": [ { "answer_id": "GEN-LSI-B-001", "score": 0.5624805688858032, "sibling_score": 0.5624805688858032, "answer_score": null, "sibling_qid": "KOC-2023-07-1270-Q005", "sibling_text": "purely reactive load added what happens with load sharing", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01. Two alternators in parallel — same kW but different current and power factor: cause and correction", "cross_family": true }, { "answer_id": "DROOP-003", "score": 0.5128604769706726, "sibling_score": 0.5128604769706726, "answer_score": 0.4668525755405426, "sibling_qid": "KOL-2018-11-2241-Q004", "sibling_text": "what governer is doing in load sharing", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Load sharing — how droop divides kW in parallel", "cross_family": true }, { "answer_id": "PERF-470-005", "score": 0.49689677357673645, "sibling_score": 0.49689677357673645, "answer_score": null, "sibling_qid": "KOL-2018-06-1381-Q001", "sibling_text": "how load balancing is done full procedure", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main-engine power balancing — procedure", "cross_family": true } ] }, { "qid": "MUM-2026-07-3726-Q003", "text": "Esb supplies giving to which motor in steering gear room ?", "family": "Electrical - Motors & Starters", "subtopic": "IP Rating", "tid": "MUM-2026-07-3726", "tray": "review", "candidates": [ { "answer_id": "TG-MOTOR-001", "score": 0.6708762049674988, "sibling_score": 0.6708762049674988, "answer_score": null, "sibling_qid": "MUM-2026-06-3456-Q017", "sibling_text": "type of motor used for steering gear system", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What type of motor is used for the turning gear, and what type of rotor does it have?", "cross_family": false }, { "answer_id": "SGM-ELEC-004", "score": 0.6572787165641785, "sibling_score": 0.6572787165641785, "answer_score": null, "sibling_qid": "KOL-2020-02-1517-Q005", "sibling_text": "steering gear motor taking more current reasons", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "The steering gear motor is taking high current or is overloaded — what are the reasons, apart from the electrical side?", "cross_family": false }, { "answer_id": "SGM-ELEC-002", "score": 0.6464731097221375, "sibling_score": 0.6464731097221375, "answer_score": 0.5022632807493209, "sibling_qid": "MUM-2026-01-1906-Q006S2", "sibling_text": "steering gear motor type", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What type of motor is the steering gear motor, how does it differ from other engine-room motors, and how do you order one?", "cross_family": false } ] }, { "qid": "MUM-2026-07-3726-Q004", "text": "What are thyristors ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Thyristor / SCR", "tid": "MUM-2026-07-3726", "tray": "review", "candidates": [ { "answer_id": "SCR-306-A-001", "score": 0.7555313110351562, "sibling_score": 0.7555313110351562, "answer_score": 0.5286597549915314, "sibling_qid": "CHE-2026-08-3899-Q009", "sibling_text": "thyristors", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What an SCR is and how it works", "cross_family": false }, { "answer_id": "SCR-306-B-001", "score": 0.7184248566627502, "sibling_score": 0.7184248566627502, "answer_score": 0.5315436482429504, "sibling_qid": "MUM-2025-09-1682-Q002", "sibling_text": "thyristor transistor", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Thyristor / SCR vs other semiconductor devices", "cross_family": false }, { "answer_id": "SCR-306-A-006", "score": 0.5387431472539902, "sibling_score": null, "answer_score": 0.5387431472539902, "sibling_qid": "", "sibling_text": "types of thyristor scr scr standard unidirectional gate turn on only no gate turn off gto gate turn off turned off by a negative gate pulse suits choppers and inverters", "sibling_family": "", "via": "answer_title", "answer_title": "Types of thyristor / SCR", "cross_family": false } ] }, { "qid": "MUM-2026-07-3727-Q001", "text": "Type of vessel sailed and type of main engine ?", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "MUM-2026-07-3727", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8021032214164734, "sibling_score": 0.8021032214164734, "answer_score": null, "sibling_qid": "CHE-2026-03-0255-Q001", "sibling_text": "type of vessel and engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.7720679640769958, "sibling_score": 0.7720679640769958, "answer_score": null, "sibling_qid": "MUM-2026-07-3668-Q004", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7057350873947144, "sibling_score": 0.7057350873947144, "answer_score": null, "sibling_qid": "KOL-2025-12-2031-Q002", "sibling_text": "type of ship and engine sailed engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "MUM-2026-07-3727-Q006", "text": "Aux engine connecting rod check?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Connecting Rod & Bolts", "tid": "MUM-2026-07-3727", "tray": "review", "candidates": [ { "answer_id": "AECR-651-001", "score": 0.7501564621925354, "sibling_score": 0.7501564621925354, "answer_score": 0.5453840255737304, "sibling_qid": "MUM-2026-07-3673-Q003", "sibling_text": "connecting rod check", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What checks do you carry out on the connecting rod of an AE / DG — inspection, overhaul checks and the trueness check?", "cross_family": false }, { "answer_id": "CRB-001", "score": 0.7495119571685791, "sibling_score": 0.7495119571685791, "answer_score": 0.5083253741264343, "sibling_qid": "KOL-2017-02-3036-Q005", "sibling_text": "connecting rod check", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What checks are carried out on the connecting rod at decarbonisation? Explain the ovality and trueness checks — how many readings, at which positions, with what instrument, and the permissible limit.", "cross_family": false }, { "answer_id": "AE-CRP-004", "score": 0.7360616326332092, "sibling_score": 0.7360616326332092, "answer_score": 0.5191956281661987, "sibling_qid": "KOC-2021-05-1760-Q004", "sibling_text": "connecting rod checks in auxiliary engine ans normal procedure he needs that no need to check anything on conrod bolts change it after running hours specified in manual and reason for conrod ovality is excessive lapping of serrations", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE connecting-rod inspection — ovality, trueness, serrations, action if out of limit", "cross_family": true } ] }, { "qid": "MUM-2026-07-3728-Q001", "text": "Significance of marking on compressor head ?", "family": "MARPOL - General & Compliance", "subtopic": "Bunker Sample Storage", "tid": "MUM-2026-07-3728", "tray": "new", "candidates": [ { "answer_id": "IP-ENCL-001", "score": 0.5045697689056396, "sibling_score": 0.5045697689056396, "answer_score": null, "sibling_qid": "KOC-2022-08-1192-Q015", "sibling_text": "compressor room motor class and what are the details will be there in the motor plate", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "IP rating of motors — what the numbers mean", "cross_family": true }, { "answer_id": "FCAM-LEAD-P04-002", "score": 0.4959491491317749, "sibling_score": 0.4959491491317749, "answer_score": null, "sibling_qid": "KOL-2023-07-3620-Q004", "sibling_text": "in main engine flywheel marking is not there you have to do the marking of every unit tdc procdure how to do", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Finding TDC when flywheel markings are missing", "cross_family": true }, { "answer_id": "CRANK-217-004", "score": 0.48993822932243347, "sibling_score": 0.48993822932243347, "answer_score": null, "sibling_qid": "MUM-2022-04-2130-Q007", "sibling_text": "significance of punch mark on crankweb tell tale mark he called it as", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankshaft slippage, tell-tale marks and action if found", "cross_family": true } ] }, { "qid": "MUM-2026-07-3728-Q002", "text": "Emergency release of Engine Room crane ?", "family": "Electrical - Motors & Starters", "subtopic": "Windlass / Crane Motor", "tid": "MUM-2026-07-3728", "tray": "review", "candidates": [ { "answer_id": "WCM-P02-001", "score": 0.864581823348999, "sibling_score": 0.864581823348999, "answer_score": null, "sibling_qid": "MUM-2026-06-3588-Q002", "sibling_text": "emergency release of engine room crane", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Safeties and trips on ship's cranes (deck, cargo, provision, engine-room)", "cross_family": false }, { "answer_id": "WIND-CRN-P01-002", "score": 0.6817259192466736, "sibling_score": 0.6817259192466736, "answer_score": null, "sibling_qid": "KOC-2022-09-1197-Q004", "sibling_text": "engine room crane diagram", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Crane motor power & control circuit (draw and explain)", "cross_family": false }, { "answer_id": "ERC-345-002", "score": 0.6676695346832275, "sibling_score": 0.6676695346832275, "answer_score": 0.4692798852920532, "sibling_qid": "KOL-2017-10-3098-Q006", "sibling_text": "you have load on engine room crane something went wrong nd crane stopped working how will you bring down the load", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Brake action and emergency load lowering", "cross_family": true } ] }, { "qid": "MUM-2026-07-3729-Q003", "text": "How to repair breached rudder?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "MUM-2026-07-3729", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.7739840745925903, "sibling_score": 0.7739840745925903, "answer_score": null, "sibling_qid": "MUM-2026-05-3161-Q003", "sibling_text": "how to repair breached rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "WBS-C-006", "score": 0.5216590106487274, "sibling_score": null, "answer_score": 0.5216590106487274, "sibling_qid": "", "sibling_text": "propeller and rudder repair grading the damage and the class approved route grade the damage first minor nicks erosion bent tip vs crack major minor grind and blend out the notch restore a fair section keep balance small cold repair epoxy fillers for minor surface defects only", "sibling_family": "", "via": "answer_title", "answer_title": "Propeller and rudder repair — grading the damage and the Class-approved route", "cross_family": false }, { "answer_id": "CEM-BOX-001", "score": 0.4860470175743103, "sibling_score": null, "answer_score": 0.4860470175743103, "sibling_qid": "", "sibling_text": "temporary repair with a cement box until dry dock take me through it reduce the head first trim or list by ballast isolate the line where the system allows crack drill stop holes at both tips removes the sharp stress raising tip so the crack cannot run", "sibling_family": "", "via": "answer_title", "answer_title": "Temporary repair with a cement box until dry dock—take me through it.", "cross_family": false } ] }, { "qid": "MUM-2026-07-3729-Q005", "text": "How to detect air leak in evaporator coil?", "family": "Refrigeration & AC", "subtopic": "Refrigeration Faults / Checks", "tid": "MUM-2026-07-3729", "tray": "review", "candidates": [ { "answer_id": "REFR-FLT-003", "score": 0.7948139309883118, "sibling_score": 0.7948139309883118, "answer_score": 0.5161860883235931, "sibling_qid": "MUM-2026-07-3731-Q005", "sibling_text": "how to detect air leak in evaporator coil", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Refrigerant leakage or loss: detect, confirm, respond, and the record-keeping", "cross_family": false }, { "answer_id": "LO-CLR-001", "score": 0.7556694149971008, "sibling_score": 0.7556694149971008, "answer_score": null, "sibling_qid": "MUM-2026-06-3598-Q010", "sibling_text": "leak in the evaporator coil of ac how to check", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "How do you detect a leaking AE / DG lube-oil cooler, and locate the tube?", "cross_family": false }, { "answer_id": "AIR-REF-001", "score": 0.6922919154167175, "sibling_score": 0.6922919154167175, "answer_score": null, "sibling_qid": "MUM-2026-07-3671-Q007", "sibling_text": "how to detect air in refrigeration system", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "1. Indications that air is present in a refrigeration system", "cross_family": false } ] }, { "qid": "MUM-2026-07-3729-Q006", "text": "How to increase propeller efficiency?", "family": "Shafting, Propeller & Rudder", "subtopic": "Stern Tube / Shafting / Propeller / Rudder", "tid": "MUM-2026-07-3729", "tray": "review", "candidates": [ { "answer_id": "SPR-STERN-001", "score": 0.8051170706748962, "sibling_score": 0.8051170706748962, "answer_score": 0.5425155341625213, "sibling_qid": "MUM-2026-06-3573-Q004", "sibling_text": "propeller efficiency how to increase", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Propeller design factors, efficiency, handedness & material", "cross_family": false }, { "answer_id": "RES-PROP-P03-002", "score": 0.75509113073349, "sibling_score": 0.75509113073349, "answer_score": 0.502230754494667, "sibling_qid": "KOL-2025-03-1968-Q005", "sibling_text": "propeller efficiency how to increase", "sibling_family": "", "via": "sibling", "answer_title": "2. Propulsive coefficients: QPC, hull/propeller/relative-rotative efficiency, wake, slip and propeller curves", "cross_family": false }, { "answer_id": "SPR-STERN-004", "score": 0.6746171116828918, "sibling_score": 0.6746171116828918, "answer_score": 0.4810498297214508, "sibling_qid": "KOL-2022-03-3523-Q003", "sibling_text": "rake of propeller advantages", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Propeller rake & skew", "cross_family": false } ] }, { "qid": "MUM-2026-07-3729-Q007", "text": "How to set boiler safety valve?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2026-07-3729", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-001", "score": 0.8248353600502014, "sibling_score": 0.8248353600502014, "answer_score": null, "sibling_qid": "KOC-2026-05-0003-Q005", "sibling_text": "boiler safety valve setting procedure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.7953937649726868, "sibling_score": 0.7953937649726868, "answer_score": null, "sibling_qid": "MUM-2026-03-2935-Q013", "sibling_text": "boiler safety valve setting in presence of surveyor after survey", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.794200599193573, "sibling_score": 0.794200599193573, "answer_score": null, "sibling_qid": "KOC-2026-05-0034-Q010", "sibling_text": "boiler safety valve types and how safety valve is set complete procedures", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "MUM-2026-07-3730-Q002", "text": "working, testing, what to do in case of fault?", "family": "Automation & Controls", "subtopic": "Temperature / Pressure / Level Sensor", "tid": "MUM-2026-07-3730", "tray": "new", "candidates": [ { "answer_id": "IGAT-583-004", "score": 0.5018531680107117, "sibling_score": 0.5018531680107117, "answer_score": null, "sibling_qid": "KOC-2021-07-0013-Q006", "sibling_text": "ig fail what action int", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "As Second Engineer, what actions do you take if the inert gas plant of a crude oil tanker is repeatedly tripping on IG high temperature?", "cross_family": true }, { "answer_id": "ANG-ENC-005", "score": 0.4991520643234253, "sibling_score": 0.4991520643234253, "answer_score": null, "sibling_qid": "CHE-2025-08-0514-Q001", "sibling_text": "if one fail what will happen", "sibling_family": "2-Stroke - 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Centrifugal & PD", "subtopic": "Impeller", "tid": "MUM-2026-07-3731", "tray": "review", "candidates": [ { "answer_id": "PCD-P02-06", "score": 0.7532614469528198, "sibling_score": 0.7532614469528198, "answer_score": null, "sibling_qid": "MUM-2026-06-3572-Q004", "sibling_text": "how to balance an impeller", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Checking pump shaft trueness / bend and static-vs-dynamic balancing", "cross_family": false }, { "answer_id": "PUMP-CAS-002", "score": 0.6553125381469727, "sibling_score": 0.6553125381469727, "answer_score": null, "sibling_qid": "MUM-2026-07-3808-Q006", "sibling_text": "centrifugal pump radial thrust how to balance", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "02. Double-volute casing — why it is used, which thrust it balances, and the clearance in question", "cross_family": false }, { "answer_id": "PCD-P02-01", "score": 0.565199077129364, "sibling_score": 0.565199077129364, "answer_score": 0.4990247905254364, "sibling_qid": "CHE-2025-08-0214-Q004", "sibling_text": "what is centrifugal pump hydraulic balancing", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Axial thrust in a centrifugal / multistage pump — how it is balanced", "cross_family": false } ] }, { "qid": "MUM-2026-07-3731-Q007", "text": "How to set boiler safety valve?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2026-07-3731", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-001", "score": 0.8248353600502014, "sibling_score": 0.8248353600502014, "answer_score": null, "sibling_qid": "KOC-2026-05-0003-Q005", "sibling_text": "boiler safety valve setting procedure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.7953937649726868, "sibling_score": 0.7953937649726868, "answer_score": null, "sibling_qid": "MUM-2026-03-2935-Q013", "sibling_text": "boiler safety valve setting in presence of surveyor after survey", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.794200599193573, "sibling_score": 0.794200599193573, "answer_score": null, "sibling_qid": "KOC-2026-05-0034-Q010", "sibling_text": "boiler safety valve types and how safety valve is set complete procedures", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "MUM-2026-07-3731-Q008", "text": "How direction control valve works in hydraulic system?", "family": "Workshop & Welding", "subtopic": "Hydraulic Pipe", "tid": "MUM-2026-07-3731", "tray": "review", "candidates": [ { "answer_id": "CBV-001", "score": 0.7855057120323181, "sibling_score": 0.7855057120323181, "answer_score": null, "sibling_qid": "MUM-2026-06-3572-Q008", "sibling_text": "how direction control valve works in hydraulic system", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "What is a counter-balance valve, why fitted, and why needed even with a directional-control valve?", "cross_family": false }, { "answer_id": "HYD-VLV-005", "score": 0.6141635179519653, "sibling_score": 0.6141635179519653, "answer_score": 0.548372083902359, "sibling_qid": "KOL-2019-04-2280-Q005", "sibling_text": "he showed few symbols of direction control valve and told me to explain", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Reading the Hydraulic Block: P, T, A, B and the Directional-Valve Symbol", "cross_family": true }, { "answer_id": "RVSG-213-002", "score": 0.5858756303787231, "sibling_score": 0.5858756303787231, "answer_score": 0.55038121342659, "sibling_qid": "KOL-2016-09-1238-Q004", "sibling_text": "rotary vane steering gear how reversal in direction takes place types of pump used construction of pump", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Working principle, actuation, reversal, movement angle & number of vanes", "cross_family": true } ] }, { "qid": "MUM-2026-07-3731-Q010", "text": "Esp how will be carried out?", "family": "Surveys - Statutory", "subtopic": "ESP / Enhanced Survey", "tid": "MUM-2026-07-3731", "tray": "new", "candidates": [ { "answer_id": "ESP-A-001", "score": 0.5222463011741638, "sibling_score": 0.5222463011741638, "answer_score": 0.27658523321151735, "sibling_qid": "KOC-2024-11-0469-Q006", "sibling_text": "esp explain x when is it conducted", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the Enhanced Survey Programme (ESP), and what is its purpose?", "cross_family": false }, { "answer_id": "ESP-B-001", "score": 0.5173656940460205, "sibling_score": 0.5173656940460205, "answer_score": 0.33773018419742584, "sibling_qid": "MUM-2026-02-2549-Q003", "sibling_text": "esp how to carry out purpose", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "How an ESP survey is carried out — conduct, engine-room preparation & 2/E duties", "cross_family": false }, { "answer_id": "ESP-A-003", "score": 0.47463124990463257, "sibling_score": 0.47463124990463257, "answer_score": 0.34126011878252027, "sibling_qid": "KOL-2016-11-0030-Q006", "sibling_text": "details in esp file", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What documents, ESP file, certificates, class notation and access are required for ESP?", "cross_family": false } ] }, { "qid": "MUM-2026-07-3732-Q001", "text": "Framo heating arrangement ?", "family": "Cargo Ops - Tankers", "subtopic": "Cargo Pump (Framo / Eductor)", "tid": "MUM-2026-07-3732", "tray": "review", "candidates": [ { "answer_id": "CPFE-583-011", "score": 0.8267306685447693, "sibling_score": 0.8267306685447693, "answer_score": null, "sibling_qid": "MUM-2025-12-1223-Q006", "sibling_text": "framo heating arrangement", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Heating arrangement and hydraulic oil in cold regions", "cross_family": false }, { "answer_id": "REEF-PREP-004", "score": 0.5955582857131958, "sibling_score": 0.5955582857131958, "answer_score": 0.4286351382732391, "sibling_qid": "KOL-2019-10-1484-Q006", "sibling_text": "refer room pan heating arrangements", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Refrigerated-room pan-heating arrangement", "cross_family": true }, { "answer_id": "TCM-374-001", "score": 0.5483694672584534, "sibling_score": 0.5483694672584534, "answer_score": null, "sibling_qid": "KOC-2026-03-2013-Q002", "sibling_text": "location of tank cleaning machine heater", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Overhaul, inspection and intervals of a tank-cleaning machine (with heater and pump)", "cross_family": false } ] }, { "qid": "MUM-2026-07-3732-Q002", "text": "UTI full from & working ?", "family": "Electrical - Generator & Alternator", "subtopic": "AVR / Excitation", "tid": "MUM-2026-07-3732", "tray": "new", "candidates": [ { "answer_id": "FIVA-220-001", "score": 0.47322866320610046, "sibling_score": 0.47322866320610046, "answer_score": null, "sibling_qid": "MUM-2026-06-3652-Q009", "sibling_text": "fiva full working", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "FIVA valve — construction, function and basic operation", "cross_family": true }, { "answer_id": "COT-P03-02", "score": 0.46668314933776855, "sibling_score": 0.46668314933776855, "answer_score": 0.24808387458324432, "sibling_qid": "MUM-2025-10-1711-Q001", "sibling_text": "uti full form working principle and how s it powered and voltage", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "UTI tape — purpose, principle, safe closed gauging, and ullage / temperature / interface", "cross_family": true }, { "answer_id": "AVR-EXC-B-001", "score": 0.4663473963737488, "sibling_score": 0.4663473963737488, "answer_score": null, "sibling_qid": "KOL-2025-08-2827-Q003", "sibling_text": "avr working full working", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Explain the AVR working principle and control-loop operation.", "cross_family": false } ] }, { "qid": "MUM-2026-07-3732-Q003", "text": "How many sprocket in chain drive? ", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Chain & Tensioning", "tid": "MUM-2026-07-3732", "tray": "review", "candidates": [ { "answer_id": "CHAIN-TENS-B-003", "score": 0.7630228400230408, "sibling_score": 0.7630228400230408, "answer_score": 0.48989225924015045, "sibling_qid": "KOC-2025-06-2067-Q005", "sibling_text": "how many sprockets are there in chain drive", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Chain-drive arrangement — sprockets, idlers, links and chain case", "cross_family": false }, { "answer_id": "CHAIN-TENS-C-001", "score": 0.6162446141242981, "sibling_score": 0.6162446141242981, "answer_score": null, "sibling_qid": "KOC-2023-01-1801-Q006", "sibling_text": "6 mcc chain tightening", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main-engine chain drive — how you know it is slack, and how you check and tighten it", "cross_family": false }, { "answer_id": "CHAIN-TENS-B-002", "score": 0.5943182110786438, "sibling_score": 0.5943182110786438, "answer_score": null, "sibling_qid": "MUM-2025-05-1118-Q002", "sibling_text": "parts of chain link of chain drive", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Changing a damaged link and renewing the main-engine chain", "cross_family": false } ] }, { "qid": "MUM-2026-07-3732-Q004", "text": "Motion between chain drive and thrust collar?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Chain & Tensioning", "tid": "MUM-2026-07-3732", "tray": "new", "candidates": [ { "answer_id": "CHAIN-TENS-B-002", "score": 0.6489138007164001, "sibling_score": 0.6489138007164001, "answer_score": null, "sibling_qid": "MUM-2025-05-1118-Q002", "sibling_text": "parts of chain link of chain drive", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Changing a damaged link and renewing the main-engine chain", "cross_family": false }, { "answer_id": "CHAIN-TENS-A-003", "score": 0.6318623423576355, "sibling_score": 0.6318623423576355, "answer_score": null, "sibling_qid": "MUM-2025-06-2321-Q001", "sibling_text": "adjustment of slack chain drive", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Chain Tightening Procedure — MC / MC-C / ME", "cross_family": false }, { "answer_id": "CHAIN-TENS-C-001", "score": 0.6149768233299255, "sibling_score": 0.6149768233299255, "answer_score": null, "sibling_qid": "KOC-2024-05-1842-Q008", "sibling_text": "chain tightening for mc engine with drawing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main-engine chain drive — how you know it is slack, and how you check and tighten it", "cross_family": false } ] }, { "qid": "MUM-2026-07-3733-Q001", "text": "Ship type and engine type ?", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "MUM-2026-07-3733", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8282946944236755, "sibling_score": 0.8282946944236755, "answer_score": null, "sibling_qid": "MUM-2025-08-2357-Q001", "sibling_text": "type of ship type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.8132275938987732, "sibling_score": 0.8132275938987732, "answer_score": null, "sibling_qid": "MUM-2026-07-3668-Q004", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7528334856033325, "sibling_score": 0.7528334856033325, "answer_score": null, "sibling_qid": "KOL-2025-12-2031-Q002", "sibling_text": "type of ship and engine sailed engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "MUM-2026-07-3733-Q005", "text": "Blow down ratio and to express ?", "family": "Boilers - Operations & Firing", "subtopic": "Scum / Blow Down", "tid": "MUM-2026-07-3733", "tray": "new", "candidates": [ { "answer_id": "FOAM-SYS-P04-001", "score": 0.5458121299743652, "sibling_score": 0.5458121299743652, "answer_score": 0.37444573938846587, "sibling_qid": "KOC-2024-11-0450-Q012", "sibling_text": "expansion ratio and values", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "4. Expansion ratios — low, medium, high", "cross_family": true }, { "answer_id": "FOAM-SYS-P04-005", "score": 0.5456865429878235, "sibling_score": 0.5456865429878235, "answer_score": null, "sibling_qid": "MUM-2026-05-3157-Q008S2", "sibling_text": "expansion ratio values", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "5. What decides the foam expansion ratio", "cross_family": true }, { "answer_id": "BFS-257-004", "score": 0.5366417169570923, "sibling_score": 0.5366417169570923, "answer_score": null, "sibling_qid": "KOC-2025-02-1900-Q001", "sibling_text": "turn down ratio", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler burner turn-down ratio", "cross_family": false } ] }, { "qid": "MUM-2026-07-3733-Q008", "text": "How to find out leaking tube ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "LO Cooler", "tid": "MUM-2026-07-3733", "tray": "new", "candidates": [ { "answer_id": "LO-CLR-001", "score": 0.6422932744026184, "sibling_score": 0.6422932744026184, "answer_score": null, "sibling_qid": "KOL-2023-08-3629-Q001", "sibling_text": "lo cooler tube leaking how to find", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you detect a leaking AE / DG lube-oil cooler, and locate the tube?", "cross_family": false }, { "answer_id": "BLR-TUBE-P02-001", "score": 0.6376983523368835, "sibling_score": 0.6376983523368835, "answer_score": 0.5040551126003265, "sibling_qid": "KOL-2016-10-3006-Q005", "sibling_text": "a water tube boiler one of d tubes are leaking minute leakage how will u come to conclusion dat tubes are leaking then how will u make out dis small leakage", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Identifying a boiler tube leak and finding the leaking tube", "cross_family": true }, { "answer_id": "HYD-602-005", "score": 0.6252127885818481, "sibling_score": 0.6252127885818481, "answer_score": 0.5292419850826263, "sibling_qid": "KOL-2024-02-3671-Q002", "sibling_text": "boiler hydraulic testing how will you find tube is leaking", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "How do you find a leaking boiler tube during the test, and how do you test the shell welding?", "cross_family": true } ] }, { "qid": "MUM-2026-07-3734-Q001", "text": "Type of ship?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-07-3734", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.837036669254303, "sibling_score": 0.837036669254303, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8018087148666382, "sibling_score": 0.8018087148666382, "answer_score": 0.5473707109689713, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8005447387695312, "sibling_score": 0.8005447387695312, "answer_score": 0.5217237085103988, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2026-07-3734-Q002", "text": "Type of engines sailed on?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-07-3734", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8114233613014221, "sibling_score": 0.8114233613014221, "answer_score": null, "sibling_qid": "CHE-2026-03-0250-Q003", "sibling_text": "type of engines sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.7527167201042175, "sibling_score": 0.7527167201042175, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q001", "sibling_text": "type of ship sailed and engines details", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ETP-344-P03-001", "score": 0.7067320942878723, "sibling_score": 0.7067320942878723, "answer_score": null, "sibling_qid": "MUM-2026-06-3492-Q002", "sibling_text": "which type of engines worked on", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false } ] }, { "qid": "MUM-2026-07-3734-Q005", "text": "What is fail safe governor?", "family": "Electrical - Protection & Relays", "subtopic": "Protection / Relays", "tid": "MUM-2026-07-3734", "tray": "new", "candidates": [ { "answer_id": "AEGOV-005", "score": 0.5611388683319092, "sibling_score": 0.5611388683319092, "answer_score": 0.4041501134634018, "sibling_qid": "MUM-2026-04-2687-Q008", "sibling_text": "governor fail than", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Dead Band, Sensitivity and Governor Malfunction", "cross_family": true }, { "answer_id": "CTRL-TL-010", "score": 0.5337156057357788, "sibling_score": 0.5337156057357788, "answer_score": null, "sibling_qid": "KOL-2021-07-2466-Q003", "sibling_text": "fail safe in control system", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Pneumatic control: nozzle-flapper, DP, actuators and fail-safe", "cross_family": true }, { "answer_id": "FIVA-220-003", "score": 0.5003815293312073, "sibling_score": 0.5003815293312073, "answer_score": 0.41165415346622464, "sibling_qid": "KOL-2025-10-2017-Q004", "sibling_text": "fiva valve control and fail safe", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "FIVA control signal, controller type, voice-coil drive and fail-safe behaviour", "cross_family": true } ] }, { "qid": "MUM-2026-07-3734-Q007", "text": "What will you do if main steam stop valve is eroded , what actions as 2E?", "family": "Boilers - Construction & Components", "subtopic": "Composite Boiler", "tid": "MUM-2026-07-3734", "tray": "new", "candidates": [ { "answer_id": "PHL-001", "score": 0.623590350151062, "sibling_score": 0.623590350151062, "answer_score": 0.47744083404541016, "sibling_qid": "MUM-2024-07-1082-Q012", "sibling_text": "big crack on steam pipe after boiler steam stop valve as a 2e what is your action", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "There is a hole in a line — bilge suction main, sea-water line, starting-air line or steam line: your action as 2/E, and how you find the exact location", "cross_family": true }, { "answer_id": "WBS-C-005", "score": 0.572153627872467, "sibling_score": 0.572153627872467, "answer_score": null, "sibling_qid": "MUM-2026-03-2617-Q005", "sibling_text": "bolier main steam line had a 1 inch crack after main steam stop valve how to go about repairs", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Crack and leak repair — deck plate, steam line, air receiver and other shipboard cracks", "cross_family": true }, { "answer_id": "BLR-TUBE-P02-001", "score": 0.571300208568573, "sibling_score": 0.571300208568573, "answer_score": null, "sibling_qid": "MUM-2026-03-0999-Q009", "sibling_text": "boiler tube leaking action as 2e", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Identifying a boiler tube leak and finding the leaking tube", "cross_family": false } ] }, { "qid": "MUM-2026-07-3735-Q002", "text": "Inter cooler function ?", "family": "Heat Exchangers & Coolers", "subtopic": "Air Cooler / JCW Cooler", "tid": "MUM-2026-07-3735", "tray": "new", "candidates": [ { "answer_id": "ACJCW-001", "score": 0.569074809551239, "sibling_score": 0.569074809551239, "answer_score": 0.4000987201929092, "sibling_qid": "KOL-2018-08-0209-Q003", "sibling_text": "air cooler function", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Function of the air cooler, intercooler and aftercooler", "cross_family": false }, { "answer_id": "ACJCW-011", "score": 0.5623921751976013, "sibling_score": 0.5623921751976013, "answer_score": null, "sibling_qid": "MUM-2025-11-2871-Q004", "sibling_text": "sea water cooling air cooler jacker lo cooler which first", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Sea-water cooling order: air cooler, jacket-water cooler or lube-oil cooler first", "cross_family": false }, { "answer_id": "STHX-001", "score": 0.5581832528114319, "sibling_score": 0.5581832528114319, "answer_score": null, "sibling_qid": "MUM-2026-02-1280-Q006", "sibling_text": "type of cooler type of flow", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "STHX-01 — Construction, parts, materials, tube fitting, pass arrangement and flow", "cross_family": false } ] }, { "qid": "MUM-2026-07-3735-Q003", "text": "Pulse lubrication?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Alpha Lubricator", "tid": "MUM-2026-07-3735", "tray": "review", "candidates": [ { "answer_id": "ALPHA-LUB-B-002", "score": 0.7704050540924072, "sibling_score": 0.7704050540924072, "answer_score": 0.47730348408222195, "sibling_qid": "KOL-2019-02-1440-Q003", "sibling_text": "pulse lubrication alpha lubrication", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Alpha, Pulse, intelligent and adaptive lubrication — and latest developments", "cross_family": false }, { "answer_id": "CYL-LUB-A-004", "score": 0.7621847987174988, "sibling_score": 0.7621847987174988, "answer_score": null, "sibling_qid": "MUM-2026-06-3450-Q010", "sibling_text": "what is pulse lubrication how pulse is generated", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Types of cylinder lubrication system", "cross_family": false }, { "answer_id": "CYL-LUB-A-002", "score": 0.7129493355751038, "sibling_score": 0.7129493355751038, "answer_score": null, "sibling_qid": "KOL-2017-05-3054-Q002", "sibling_text": "pulse lubrication and how u adjust the quantity", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Feed-rate control — quantity, timing and load/rpm-dependent dosing", "cross_family": false } ] }, { "qid": "MUM-2026-07-3735-Q004", "text": "Load dependent liner lubrication?", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "MUM-2026-07-3735", "tray": "review", "candidates": [ { "answer_id": "CYL-LUB-A-002", "score": 0.6855528354644775, "sibling_score": 0.6855528354644775, "answer_score": null, "sibling_qid": "MUM-2025-12-1234-Q002", "sibling_text": "load dependent cyl lubrication", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Feed-rate control — quantity, timing and load/rpm-dependent dosing", "cross_family": true }, { "answer_id": "CYL-LUB-A-001", "score": 0.6658656597137451, "sibling_score": 0.6658656597137451, "answer_score": null, "sibling_qid": "MUM-2026-05-3002-Q004S2", "sibling_text": "lubrication type of lubrication in liner", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Cylinder lubrication — how it is carried out and its purpose", "cross_family": true }, { "answer_id": "CYL-LUB-B-004", "score": 0.6523133516311646, "sibling_score": 0.6523133516311646, "answer_score": null, "sibling_qid": "CHE-2025-08-0212-Q004", "sibling_text": "why liner lubrication depends on rpm and load dependent expecting more load more fuel more sulphur to neturalize so more injection", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Feed rate, over- and under-lubrication, sufficiency checks", "cross_family": true } ] }, { "qid": "MUM-2026-07-3736-Q002", "text": "Turning gear is hunting ?", "family": "Steering Gear & Hydraulics", "subtopic": "Follow-Up / Non Follow-Up", "tid": "MUM-2026-07-3736", "tray": "review", "candidates": [ { "answer_id": "STEER-055-A-003", "score": 0.6801853775978088, "sibling_score": 0.6801853775978088, "answer_score": 0.4049250692129135, "sibling_qid": "KOL-2022-07-1695-Q004", "sibling_text": "hunting in steering gear how is it caused working of hunting gear", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Hunting gear, floating lever and buffer spring", "cross_family": false }, { "answer_id": "TG-MOTOR-003", "score": 0.5966507196426392, "sibling_score": 0.5966507196426392, "answer_score": null, "sibling_qid": "MUM-2023-10-1406-Q007", "sibling_text": "started used in turning gear", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What starter is used on the turning gear motor, and why not a star-delta or a soft starter?", "cross_family": true }, { "answer_id": "TLM-218-003", "score": 0.5577021241188049, "sibling_score": 0.5577021241188049, "answer_score": 0.4100188732147217, "sibling_qid": "KOL-2025-05-2780-Q002", "sibling_text": "hunting gear and telemotor working", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Hunting gear, synchro and feedback in the control loop", "cross_family": false } ] }, { "qid": "MUM-2026-07-3736-Q005", "text": "Indications of crack cylinder head?", "family": "2-Stroke - Components (Other)", "subtopic": "Piston (Crown/Skirt/Inspection)", "tid": "MUM-2026-07-3736", "tray": "review", "candidates": [ { "answer_id": "PST-CSI-BF-011", "score": 0.7777028679847717, "sibling_score": 0.7777028679847717, "answer_score": 0.5788741618394851, "sibling_qid": "MUM-2026-06-3416-Q006", "sibling_text": "cylinder head crack how to know and your actions", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Detecting a crack in the piston crown, and the indications you would get", "cross_family": false }, { "answer_id": "CYL-LINER-P03-001", "score": 0.7690053582191467, "sibling_score": 0.7690053582191467, "answer_score": null, "sibling_qid": "MUM-2026-07-3718-Q004", "sibling_text": "crack cylinder head repair", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Cracked cylinder liner — can it be repaired, and what are the options?", "cross_family": false }, { "answer_id": "CCH-590-003", "score": 0.768554151058197, "sibling_score": 0.768554151058197, "answer_score": 0.5425840318202972, "sibling_qid": "MUM-2026-07-3736-Q004", "sibling_text": "crack cylinder head repair", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "A cylinder head or its cooling jacket is cracked. What is the first indication, what is your action, and how do you make port?", "cross_family": false } ] }, { "qid": "MUM-2026-07-3736-Q006", "text": "Cold corrosion in main engine?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Cold Corrosion", "tid": "MUM-2026-07-3736", "tray": "review", "candidates": [ { "answer_id": "CC-294-001", "score": 0.797898530960083, "sibling_score": 0.797898530960083, "answer_score": 0.5016165554523467, "sibling_qid": "MUM-2026-07-3718-Q006", "sibling_text": "cold corrosion in main engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What cold corrosion is, and what it attacks", "cross_family": false }, { "answer_id": "CC-294-002", "score": 0.7352186441421509, "sibling_score": 0.7352186441421509, "answer_score": null, "sibling_qid": "KOL-2022-10-1714-Q006", "sibling_text": "reason for cold corrosion in combustion chamber of main engine sulphur in fuel water in fuel moisture in scavange air", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Causes — and why owners still fear it on VLSFO", "cross_family": false }, { "answer_id": "HOTC-333-001", "score": 0.723381519317627, "sibling_score": 0.723381519317627, "answer_score": null, "sibling_qid": "MUM-2026-07-3718-Q007", "sibling_text": "hot corrosion in main engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What is hot corrosion, why does it occur, and where is it found?", "cross_family": false } ] }, { "qid": "MUM-2026-07-3736-Q009", "text": "Change over fuel on ship LSHFO to MGO ?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "SOx Limit", "tid": "MUM-2026-07-3736", "tray": "new", "candidates": [ { "answer_id": "SOX-LIMIT-002", "score": 0.549341082572937, "sibling_score": 0.549341082572937, "answer_score": null, "sibling_qid": "KOL-2018-09-0217-Q008", "sibling_text": "marpol annex 6 special area changeover procedure from high sulphur heavy oil to low sulphur gas oil", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "ECA / SECA limits, areas, and fuel changeover", "cross_family": false }, { "answer_id": "SOX-LIMIT-006", "score": 0.5289191603660583, "sibling_score": 0.5289191603660583, "answer_score": null, "sibling_qid": "KOC-2023-12-0253-Q006", "sibling_text": "psc inspector boarded the vessel what all to show for compliance of fuel changeover being followed", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Proving Annex VI sulphur compliance — records and PSC evidence", "cross_family": false }, { "answer_id": "LPG-LNG-007", "score": 0.5239201188087463, "sibling_score": 0.5239201188087463, "answer_score": null, "sibling_qid": "KOC-2025-12-0748-Q002", "sibling_text": "lpg ship grade change procedure my type of ship is lpg", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Grade-change procedure, including LPG to ammonia", "cross_family": true } ] }, { "qid": "MUM-2026-07-3736-Q011", "text": "Disadvantage of LSFO to MGO ?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "VIT Mechanism", "tid": "MUM-2026-07-3736", "tray": "new", "candidates": [ { "answer_id": "FQCC-583-A-009", "score": 0.4209715723991394, "sibling_score": 0.4209715723991394, "answer_score": 0.2656366527080536, "sibling_qid": "MUM-2022-08-1020-Q006", "sibling_text": "what are the problems with lsfo cross q", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "VLSFO problems and the 2/E's action on bad fuel", "cross_family": false }, { "answer_id": "VIT-MECH-A-001", "score": 0.39408284425735474, "sibling_score": 0.39408284425735474, "answer_score": null, "sibling_qid": "CHE-2026-05-0552-Q006S2", "sibling_text": "po ques vit disadvantage", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "VIT — what it is, why it is fitted, and its trade-offs", "cross_family": false }, { "answer_id": "FQCC-583-B-016", "score": 0.3857826590538025, "sibling_score": 0.3857826590538025, "answer_score": null, "sibling_qid": "MUM-2023-08-2183-Q005", "sibling_text": "mgo effects on engine what is the effect of using mgo over hfo", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "MGO effects on the engine — what changes when you come off HFO", "cross_family": false } ] }, { "qid": "MUM-2026-07-3737-Q001", "text": "Name ,company, function, cleared, no. Of attempts ?", "family": "IMO Structure & Conventions", "subtopic": "IMO / Committees / Codes", "tid": "MUM-2026-07-3737", "tray": "new", "candidates": [ { "answer_id": "IMO-CODES-P03-002", "score": 0.4525984525680542, "sibling_score": 0.4525984525680542, "answer_score": null, "sibling_qid": "KOC-2026-04-0892-Q002", "sibling_text": "function name", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": false }, { "answer_id": "IMO-5PIL-007", "score": 0.3977351188659668, "sibling_score": 0.3977351188659668, "answer_score": null, "sibling_qid": "MUM-2022-09-0044-Q011", "sibling_text": "all code name", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Codes, protocols and amendments", "cross_family": false }, { "answer_id": "SMSFR-002", "score": 0.3780399262905121, "sibling_score": 0.3780399262905121, "answer_score": null, "sibling_qid": "MUM-2022-10-0056-Q005", "sibling_text": "your company sms policy full", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the Safety Management System — the SMS manual, its contents, objectives, why it is needed onboard, and the company SMS policy?", "cross_family": true } ] }, { "qid": "MUM-2026-07-3737-Q005", "text": "Lift of full bore safety valve?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2026-07-3737", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.700568437576294, "sibling_score": 0.700568437576294, "answer_score": null, "sibling_qid": "MUM-2026-07-3737-Q004", "sibling_text": "boiler type safety valve type lift of safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "MR-DS-PV-B-006", "score": 0.6892693638801575, "sibling_score": 0.6892693638801575, "answer_score": null, "sibling_qid": "KOC-2026-09-2180-Q009", "sibling_text": "full bore safety valve construction", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "6. Deck isolating valve, deck relief/safety devices, and cargo-tank pressure", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-002", "score": 0.673129141330719, "sibling_score": 0.673129141330719, "answer_score": null, "sibling_qid": "KOL-2026-02-3922-Q005", "sibling_text": "what is lifting of safety valve tell only within 3 percent of designated set pressure nothing else", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Acceptance limits and durations — the accumulation limit, the maximum test periods, and the action if the limit is exceeded", "cross_family": false } ] }, { "qid": "MUM-2026-07-3737-Q006", "text": "Why lift is D/4?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2026-07-3737", "tray": "new", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-003", "score": 0.40242838859558105, "sibling_score": 0.40242838859558105, "answer_score": null, "sibling_qid": "KOL-2017-02-1842-Q002", "sibling_text": "accumulation of pr test wen it shud b carried blow down and hw it is controlled constructional difference in high lift n improved high lift", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "The accumulation test and the safety valve — required lift, how lift and capacity are verified, and why accumulation must stay inside the limit", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.3809618353843689, "sibling_score": 0.3809618353843689, "answer_score": null, "sibling_qid": "KOL-2026-01-3900-Q004", "sibling_text": "diff between improved high lift and high lift", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "BWM-D1D2-P04-002", "score": 0.375161349773407, "sibling_score": 0.375161349773407, "answer_score": null, "sibling_qid": "KOC-2022-01-0048-Q013", "sibling_text": "bwms code explain d1 d2 d4", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "D-2 standard and the BWMS Code (ex-G8) — type approval of treatment systems", "cross_family": true } ] }, { "qid": "MUM-2026-07-3737-Q011", "text": "How to do impact test? Unit for impact test?", "family": "NDT & Material Testing", "subtopic": "Impact / Charpy", "tid": "MUM-2026-07-3737", "tray": "review", "candidates": [ { "answer_id": "IMP-CHARPY-001", "score": 0.6798180341720581, "sibling_score": 0.6798180341720581, "answer_score": 0.37662018537521363, "sibling_qid": "MUM-2026-07-3723-Q011", "sibling_text": "how to do impact test unit for impact test", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "What is an impact test, and what is its purpose or significance?", "cross_family": false }, { "answer_id": "IMP-CHARPY-002", "score": 0.3188413977622986, "sibling_score": null, "answer_score": 0.3188413977622986, "sibling_qid": "", "sibling_text": "what are the specimen details or specifications for an izod impact test standard metal izod specimen astm e23 75 mmlong 10 10 mmsquare section round variant 11 4 mmdiameter singlev notch 45 included angle 2 mmdeep 0 25 mmroot radius positioned28 mmfrom one end", "sibling_family": "", "via": "answer_title", "answer_title": "What are the specimen details or specifications for an Izod impact test?", "cross_family": false }, { "answer_id": "PTRIP-222-003", "score": 0.2736851781606674, "sibling_score": null, "answer_score": 0.2736851781606674, "sibling_qid": "", "sibling_text": "testing and survey demonstration msb setting checks parallel alternators aim demonstrate the correct loads shed at the correct setting after the correct delay then restore everything method a secondary injection through the approved relay test block with ct secondaries safely burdened shorted and never open circuited inject current to the set value and time the delay with a stopwatch", "sibling_family": "", "via": "answer_title", "answer_title": "Testing and survey demonstration, MSB setting checks, parallel alternators", "cross_family": false } ] }, { "qid": "MUM-2026-07-3738-Q002", "text": "Why is a crankcase breather fitted? What safety devices are incorporated within its piping network?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankcase Explosion", "tid": "MUM-2026-07-3738", "tray": "review", "candidates": [ { "answer_id": "CCE-322-004", "score": 0.7010403275489807, "sibling_score": 0.7010403275489807, "answer_score": null, "sibling_qid": "KOC-2022-02-0957-Q006", "sibling_text": "safeties against crankcase explosion and draw of relief door", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Preventive measures and safety devices", "cross_family": false }, { "answer_id": "CC-RELIEF-312-005", "score": 0.6821630597114563, "sibling_score": 0.6821630597114563, "answer_score": 0.48288335800170895, "sibling_qid": "MUM-2026-06-3502-Q003", "sibling_text": "safety on crankcase", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Safeties fitted for the crankcase", "cross_family": false }, { "answer_id": "CRD-002", "score": 0.6462953686714172, "sibling_score": 0.6462953686714172, "answer_score": null, "sibling_qid": "KOL-2023-08-1749-Q004", "sibling_text": "crankcase safety for the main engine regulation for crankcase relief door", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Regulations & criteria — applicability, area, material, arrester, opening pressure", "cross_family": false } ] }, { "qid": "MUM-2026-07-3738-Q005", "text": "How is the Fuel Pump Lead measured on a conventional engine? Explain the process of 'Zero Setting' during a fuel pump overhaul?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Pump Overhaul", "tid": "MUM-2026-07-3738", "tray": "review", "candidates": [ { "answer_id": "FP-OVHL-005", "score": 0.7265955805778503, "sibling_score": 0.7265955805778503, "answer_score": 0.5611440598964691, "sibling_qid": "MUM-2026-05-3246-Q006", "sibling_text": "fuel pump zero setting fuel pump lead", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel pump zero setting — what it is, why, and how to set it", "cross_family": false }, { "answer_id": "FCL-P01-001", "score": 0.7036582827568054, "sibling_score": 0.7036582827568054, "answer_score": 0.547934752702713, "sibling_qid": "KOL-2026-03-3940-Q001", "sibling_text": "fuel pump lead how you ll measure", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel pump lead and fuel cam lead: meaning, measurement, significance and adjustment", "cross_family": false }, { "answer_id": "FCL-P03-002", "score": 0.5259292721748352, "sibling_score": null, "answer_score": 0.5259292721748352, "sibling_qid": "", "sibling_text": "man b w mc c mcc fuel pump timing and lead do not quote a universal lead angle use the engine s shop test sea trial setting sheet and current instruction book safety first stopped engine starting air isolated indicator cocks open turning gear engaged controls posted", "sibling_family": "", "via": "answer_title", "answer_title": "MAN B&W / MC-C / MCC fuel pump timing and lead", "cross_family": false } ] }, { "qid": "MUM-2026-07-3738-Q006", "text": "How is a Propeller Drop taken using a poker gauge? What is a rope guard, and is it mandatory to remove it prior to taking the propeller drop measurement?", "family": "Drydock & Underwater Surveys", "subtopic": "Propeller / Pilgrim Nut", "tid": "MUM-2026-07-3738", "tray": "review", "candidates": [ { "answer_id": "PROP-PN-C-002", "score": 0.7269670963287354, "sibling_score": 0.7269670963287354, "answer_score": 0.5057152688503265, "sibling_qid": "CHE-2026-05-0597-Q004", "sibling_text": "how to take propeller drop where to fit the poker gauge", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Propeller drop — measurement and consequences", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.6969104409217834, "sibling_score": 0.6969104409217834, "answer_score": 0.4716935157775879, "sibling_qid": "KOC-2021-05-1760-Q003", "sibling_text": "rudder drop measurement using poker gauge ans by first unit on tdc the remove rope guard drain oil by removing both top and bottom plugs remove copper gasket and put poker gauge till the matching mark on poker gauge then press the measuring pin and lock it and take readings take on both top and bottom", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": true }, { "answer_id": "STERN-TUBE-TAIL-SHAFT-002", "score": 0.6406400799751282, "sibling_score": 0.6406400799751282, "answer_score": null, "sibling_qid": "MUM-2022-12-0074-Q006", "sibling_text": "how to measure propeller drop detailed procedure", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "MUM-2026-07-3738-Q010", "text": "Detail the entire procedure for taking Crankshaft Deflection. How do you verify the readings, and how do you plot/interpret a deflection curve?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft Deflection", "tid": "MUM-2026-07-3738", "tray": "review", "candidates": [ { "answer_id": "CSD-BF036-003", "score": 0.7872689366340637, "sibling_score": 0.7872689366340637, "answer_score": null, "sibling_qid": "MUM-2026-05-3195-Q007", "sibling_text": "3e took crankshaft deflection and given readings to you as 2e how you will check if it s taken correctly and graph plotting", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "A 3/E has handed you the deflection readings — how do you verify they were taken correctly?", "cross_family": false }, { "answer_id": "CRK-DEFL-005", "score": 0.7867400646209717, "sibling_score": 0.7867400646209717, "answer_score": null, "sibling_qid": "KOC-2022-08-1790-Q002", "sibling_text": "crankshaft deflection procedure he told no need of safeties go direct to measurement how to plot graph what precaution while measuring last 3 units explained as per manual", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Plotting and interpreting the deflection curve", "cross_family": false }, { "answer_id": "CRK-DEFL-001", "score": 0.7462918162345886, "sibling_score": 0.7462918162345886, "answer_score": null, "sibling_qid": "CHE-2025-08-0420-Q009", "sibling_text": "crank shaft deflection when y what u will come to knw how many reading u take in one unit", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Purpose, timing and scope of crankshaft deflection", "cross_family": false } ] }, { "qid": "MUM-2026-07-3738-Q011", "text": "Explain the step-by-step procedure for overhauling the lower shell of a Main Engine main bearing?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE MAIN BEARING", "tid": "MUM-2026-07-3738", "tray": "review", "candidates": [ { "answer_id": "AE-MB-002", "score": 0.7386156320571899, "sibling_score": 0.7386156320571899, "answer_score": 0.5686873137950897, "sibling_qid": "KOL-2022-02-3517-Q001", "sibling_text": "auxiliary engine main bearing lower shell removal normal bearing and then under slug bearing", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Removing the lower shell / bottom half of an AE main bearing", "cross_family": false }, { "answer_id": "AE-MB-001", "score": 0.6869593858718872, "sibling_score": 0.6869593858718872, "answer_score": null, "sibling_qid": "KOL-2026-02-4083-Q014", "sibling_text": "how to take out main bearing lower shell of aux engine", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Removing and renewing an auxiliary-engine main bearing", "cross_family": false }, { "answer_id": "AE-MB-003", "score": 0.6603790521621704, "sibling_score": 0.6603790521621704, "answer_score": 0.5551994562149047, "sibling_qid": "MUM-2024-01-1073-Q008", "sibling_text": "ae main bearing removal procedure how to remove top shell", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Removing the top shell and the main-bearing locking arrangement", "cross_family": false } ] }, { "qid": "MUM-2026-07-3739-Q003", "text": "Compare Dye Penetrant Testing (DPT), Magnetic Particle Testing (MPT), Ultrasonic Testing (UT), and Radiography Testing (RT). How do you decide which Non-Destructive Testing (NDT) method to implement for a given component defect?", "family": "NDT & Material Testing", "subtopic": "NDT Methods (MPI/DPT/UT/RT)", "tid": "MUM-2026-07-3739", "tray": "review", "candidates": [ { "answer_id": "NDT-METH-P01-001", "score": 0.7490048408508301, "sibling_score": 0.7490048408508301, "answer_score": 0.6479812562465668, "sibling_qid": "MUM-2026-09-3877-Q001", "sibling_text": "ndt test method", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "NDT methods, NDT vs destructive testing, and onboard use", "cross_family": false }, { "answer_id": "NDT-METH-P02-001", "score": 0.7482948899269104, "sibling_score": 0.7482948899269104, "answer_score": 0.5073943227529526, "sibling_qid": "KOL-2023-12-3661-Q002", "sibling_text": "types of ndt explain mpt", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "1. Magnetic Particle Inspection (MPI / MPT)", "cross_family": false }, { "answer_id": "NDT-METH-P02-002", "score": 0.7267484068870544, "sibling_score": 0.7267484068870544, "answer_score": null, "sibling_qid": "KOL-2017-03-3037-Q001", "sibling_text": "ndt test and other then ndt test where to use ultrasonic test", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "2. Ultrasonic Testing & Thickness Gauging", "cross_family": false } ] }, { "qid": "MUM-2026-07-3739-Q005", "text": "Explain the mechanism of Fatigue Failure. How do you visually identify a fatigue failure on a fractured component surface onboard?", "family": "NDT & Material Testing", "subtopic": "Creep / Fatigue Failure", "tid": "MUM-2026-07-3739", "tray": "review", "candidates": [ { "answer_id": "CFF-P02-004", "score": 0.6790301203727722, "sibling_score": 0.6790301203727722, "answer_score": 0.5989691048860549, "sibling_qid": "MUM-2026-05-3151-Q004", "sibling_text": "fatigue cracking", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Fatigue crack initiation and identification", "cross_family": false }, { "answer_id": "CFF-P02-001", "score": 0.6569752097129822, "sibling_score": 0.6569752097129822, "answer_score": 0.5414942502975464, "sibling_qid": "MUM-2026-05-3129-Q004", "sibling_text": "fatigue failure", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Fatigue failure — what it is and where it occurs", "cross_family": false }, { "answer_id": "DBT-490-001", "score": 0.6540002226829529, "sibling_score": 0.6540002226829529, "answer_score": null, "sibling_qid": "MUM-2026-05-3227-Q011", "sibling_text": "how to distinguish whether the material has undergone brittle or fatigue failure", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Differentiate ductile fracture and brittle fracture", "cross_family": false } ] }, { "qid": "MUM-2026-07-3739-Q006", "text": "State the mandatory types of boiler safety valves. What is the standard lift of a safety valve, and why is it specifically designed to be Diameter/4 (D/4)?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2026-07-3739", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.7466686964035034, "sibling_score": 0.7466686964035034, "answer_score": null, "sibling_qid": "MUM-2026-07-3737-Q004", "sibling_text": "boiler type safety valve type lift of safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACRV-005", "score": 0.6756966710090637, "sibling_score": 0.6756966710090637, "answer_score": 0.47177751660346984, "sibling_qid": "MUM-2026-06-3357-Q006", "sibling_text": "safety valve boiler types and construction boiler water", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.6726410388946533, "sibling_score": 0.6726410388946533, "answer_score": null, "sibling_qid": "MUM-2026-05-3289-Q007", "sibling_text": "boiler type make and rating and setting of safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false } ] }, { "qid": "MUM-2026-07-3740-Q001", "text": "Explain the Piezoelectric Effect and its applications in shipboard Instrumentation?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Piezoelectric", "tid": "MUM-2026-07-3740", "tray": "review", "candidates": [ { "answer_id": "PIEZO-BF57-002", "score": 0.6507278084754944, "sibling_score": 0.6507278084754944, "answer_score": 0.5097843945026398, "sibling_qid": "MUM-2025-09-1634-Q002", "sibling_text": "piezoelectric effect material and where use in engine room", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "The piezoelectric sensor — how it works and where it's used in the engine room", "cross_family": false }, { "answer_id": "PIEZO-BF57-001", "score": 0.6242720484733582, "sibling_score": 0.6242720484733582, "answer_score": 0.4728150635957718, "sibling_qid": "KOL-2021-05-3403-Q007", "sibling_text": "what is piso electric effect and where is it used on ship", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "The piezoelectric effect — how it makes a voltage, and the material", "cross_family": false }, { "answer_id": "TPL-SENS-B-004", "score": 0.46894798576831814, "sibling_score": null, "answer_score": 0.46894798576831814, "sibling_qid": "", "sibling_text": "shipboard t p l instrumentation principles the remote indication chain the measurement chain measurand sensor primary element transducer to electrical transmitter condition standardise to 4 20 ma digital indicator local control room controller and alarm monitoring ias temperature thermocouple seebeck effect an emf appears when two dissimilar metals are joined and the measuring hot and reference co", "sibling_family": "", "via": "answer_title", "answer_title": "Shipboard T/P/L instrumentation — principles & the remote-indication chain", "cross_family": false } ] }, { "qid": "MUM-2026-07-3740-Q002", "text": "Compare a Resistance Temperature Detector (RTD) against a Thermocouple in terms of construction temperature range, accuracy, and operational principle?", "family": "Automation & Controls", "subtopic": "Temperature / Pressure / Level Sensor", "tid": "MUM-2026-07-3740", "tray": "review", "candidates": [ { "answer_id": "TPL-SENS-A-003", "score": 0.7150896191596985, "sibling_score": 0.7150896191596985, "answer_score": null, "sibling_qid": "MUM-2026-06-3655-Q010", "sibling_text": "rtd thermocouple difference", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Thermocouple principle, Seebeck effect and exhaust-temperature sensing", "cross_family": false }, { "answer_id": "AUC-SEN-08", "score": 0.6886305212974548, "sibling_score": 0.6886305212974548, "answer_score": 0.5677336156368256, "sibling_qid": "KOC-2024-11-1431-Q002", "sibling_text": "rtd working thermocouple working temp limit", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Selecting and comparing temperature detectors — RTD, TC and thermistor by service", "cross_family": false }, { "answer_id": "TPL-SENS-A-004", "score": 0.6351379752159119, "sibling_score": 0.6351379752159119, "answer_score": 0.476746129989624, "sibling_qid": "KOC-2022-02-1173-Q006", "sibling_text": "type of transducers how rtd temperature transducer works material used", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "RTD / Pt100 / Pt200 temperature sensor", "cross_family": false } ] }, { "qid": "MUM-2026-07-3740-Q003", "text": "If two Diesel Generators are running in parallel and one suddenly loses its excitation, explain the exact sequential system response. Will the Under Voltage Trip (UVT) actuate first?", "family": "Electrical - Protection & Relays", "subtopic": "Overcurrent / UV Trip", "tid": "MUM-2026-07-3740", "tray": "new", "candidates": [ { "answer_id": "PTRIP-222-001", "score": 0.645529568195343, "sibling_score": 0.645529568195343, "answer_score": null, "sibling_qid": "CHE-2026-05-0536-Q010", "sibling_text": "undervoltage preferential trip", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Preferential trip — purpose, working principle and activation", "cross_family": false }, { "answer_id": "OC-UV-TRIP-001", "score": 0.6360418200492859, "sibling_score": 0.6360418200492859, "answer_score": null, "sibling_qid": "KOL-2026-02-2963-Q002", "sibling_text": "how under voltage trip occurs and sequence of events leading to it", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Under-voltage trip / no-volt coil — purpose, working, onboard test and calibration", "cross_family": false }, { "answer_id": "PTRIP-222-002", "score": 0.6318670511245728, "sibling_score": 0.6318670511245728, "answer_score": null, "sibling_qid": "KOC-2024-10-1410-Q010", "sibling_text": "preferential trip and overload trip when it happens", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Stages, load-shedding sequence, settings, time delays and loads shed", "cross_family": false } ] }, { "qid": "MUM-2026-07-3740-Q005", "text": "relation to system power, current, and voltage measurement?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Electrical Components / Electronics", "tid": "MUM-2026-07-3740", "tray": "review", "candidates": [ { "answer_id": "VOLT-SYS-002", "score": 0.6721920967102051, "sibling_score": 0.6721920967102051, "answer_score": null, "sibling_qid": "KOC-2025-10-1591-Q004", "sibling_text": "what is voltage current", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What voltage is, and voltage in a single wire versus three-phase", "cross_family": false }, { "answer_id": "PWR-ARA-001", "score": 0.65652996301651, "sibling_score": 0.65652996301651, "answer_score": null, "sibling_qid": "KOC-2023-07-1272-Q003", "sibling_text": "true power apprent power reactive power", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "kW, kVA and kVAr — and the power triangle", "cross_family": false }, { "answer_id": "PERF-470-003", "score": 0.6549839973449707, "sibling_score": 0.6549839973449707, "answer_score": null, "sibling_qid": "KOC-2026-03-1116-Q008", "sibling_text": "power measurement equation and details", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main-engine power calculation — formulae and cross-checks", "cross_family": true } ] }, { "qid": "MUM-2026-07-3740-Q006", "text": "What does the IP55 rating signify regarding electrical equipment enclosures?", "family": "Electrical - Motors & Starters", "subtopic": "IP Rating / Enclosure", "tid": "MUM-2026-07-3740", "tray": "new", "candidates": [ { "answer_id": "IP-RATING-001", "score": 0.6357879042625427, "sibling_score": 0.6357879042625427, "answer_score": 0.5181008815765381, "sibling_qid": "CHE-2026-09-3936-Q004", "sibling_text": "ip rating explanation full dust and liquid ingress all ratings engine room deck machineries rating", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "IP (ingress protection) rating — the two digits, why it is needed, and how it is kept intact on ship equipment", "cross_family": false }, { "answer_id": "IP-ENCL-004", "score": 0.6242180466651917, "sibling_score": 0.6242180466651917, "answer_score": 0.5058608770370483, "sibling_qid": "MUM-2023-11-2210-Q004", "sibling_text": "ip 65 in motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Interpreting a stated code — IP55, IP56, IP65, IP66", "cross_family": false }, { "answer_id": "IP-ENCL-002", "score": 0.6140831112861633, "sibling_score": 0.6140831112861633, "answer_score": 0.5147652685642242, "sibling_qid": "KOC-2025-11-1629-Q006", "sibling_text": "msw pump motor insulation class and enclusure ip rating", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Suitable IP rating by location — ER, deck, pump, generator", "cross_family": false } ] }, { "qid": "MUM-2026-07-3740-Q009", "text": "What is a Thyristor? Explain its construction and triggering mechanism?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Thyristor / SCR", "tid": "MUM-2026-07-3740", "tray": "review", "candidates": [ { "answer_id": "SCR-306-A-001", "score": 0.7091895341873169, "sibling_score": 0.7091895341873169, "answer_score": 0.5441241651773453, "sibling_qid": "KOL-2021-09-2492-Q004", "sibling_text": "thyristor construction and working", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What an SCR is and how it works", "cross_family": false }, { "answer_id": "SCR-306-B-003", "score": 0.5512741148471832, "sibling_score": null, "answer_score": 0.5512741148471832, "sibling_qid": "", "sibling_text": "triac and diac construction triggering and use triac bidirectional triode ac switch behaves as two scrs inverse parallel with a common gate conducts in both directions so it controls the full ac cycle a single scr controls one half only", "sibling_family": "", "via": "answer_title", "answer_title": "TRIAC and DIAC — construction, triggering and use", "cross_family": false }, { "answer_id": "SCR-306-B-001", "score": 0.5490185558795929, "sibling_score": null, "answer_score": 0.5490185558795929, "sibling_qid": "", "sibling_text": "thyristor scr vs other semiconductor devices scr four layer pnpn three junctions three terminals anode cathode gate a latching gate triggered one direction switch once latched the gate loses control it stays on until anode current drops below holding current", "sibling_family": "", "via": "answer_title", "answer_title": "Thyristor / SCR vs other semiconductor devices", "cross_family": false } ] }, { "qid": "MUM-2026-07-3741-Q002", "text": "Explain the design and operation of the electrical circuit for the steering gear system?", "family": "Steering Gear & Hydraulics", "subtopic": "Steering Gear System", "tid": "MUM-2026-07-3741", "tray": "review", "candidates": [ { "answer_id": "SG-055-B-002", "score": 0.6638571619987488, "sibling_score": 0.6638571619987488, "answer_score": 0.5216274470090866, "sibling_qid": "KOC-2026-03-1734-Q006", "sibling_text": "steering gear electrical safeties", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Steering-gear alarms, trips and electrical / hydraulic safeties", "cross_family": false }, { "answer_id": "TLM-218-002", "score": 0.644097626209259, "sibling_score": 0.644097626209259, "answer_score": null, "sibling_qid": "MUM-2025-06-1131-Q005", "sibling_text": "steering gear telemotor system", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "What is a telemotor — transmitter / receiver types and working", "cross_family": false }, { "answer_id": "STEER-055-A-001", "score": 0.6376519799232483, "sibling_score": 0.6376519799232483, "answer_score": null, "sibling_qid": "KOL-2022-04-2554-Q002", "sibling_text": "electric steering gear components and working one more ques don t remember", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Steering gear — construction, types and working", "cross_family": false } ] }, { "qid": "MUM-2026-07-3741-Q005", "text": "What is the function of a Bus Tie? How many bus ties are typically provided on a main switchboard, where are they located, and what specific operational purposes do they serve? ", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Tie Rod / Tie Bolt", "tid": "MUM-2026-07-3741", "tray": "new", "candidates": [ { "answer_id": "MSB-ESB-C-001", "score": 0.5712525844573975, "sibling_score": 0.5712525844573975, "answer_score": null, "sibling_qid": "KOC-2021-12-1157-Q002", "sibling_text": "supply connection of emergency and main bus bar tie breaker arrangement from where all u can activate ecr and esb lots of cross in that", "sibling_family": "", "via": "sibling", "answer_title": "MSB-ESB interconnection, tie breaker/interlock and emergency supply transfer", "cross_family": false }, { "answer_id": "MSB-ESB-A-001", "score": 0.5114104747772217, "sibling_score": 0.5114104747772217, "answer_score": 0.44457361102104187, "sibling_qid": "MUM-2026-03-2022-Q002", "sibling_text": "bus bar how connected", "sibling_family": "", "via": "sibling", "answer_title": "Busbars: construction, arrangement, connection, checks and rating", "cross_family": false }, { "answer_id": "CB-ACB-F-001", "score": 0.4825460612773895, "sibling_score": 0.4825460612773895, "answer_score": 0.4110752671957016, "sibling_qid": "CHE-2026-04-0141-Q011", "sibling_text": "how acb working with bus tie bar and x", "sibling_family": "", "via": "sibling", "answer_title": "ACB function & working principle in the ship distribution system", "cross_family": false } ] }, { "qid": "MUM-2026-07-3741-Q006", "text": "Elaborate on the consequences of a low power factor and how it is corrected onboard ?", "family": "Electrical - Generator & Alternator", "subtopic": "Power Factor", "tid": "MUM-2026-07-3741", "tray": "review", "candidates": [ { "answer_id": "PF-B-001", "score": 0.676663875579834, "sibling_score": 0.676663875579834, "answer_score": 0.5320507943630218, "sibling_qid": "CHE-2026-04-0386-Q002", "sibling_text": "power factor should be less or high and consequence", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Low power factor — causes and effects", "cross_family": false }, { "answer_id": "PF-A-004", "score": 0.6582935452461243, "sibling_score": 0.6582935452461243, "answer_score": 0.51463982462883, "sibling_qid": "KOL-2025-11-1114-Q007", "sibling_text": "what happens if power factor is low", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "The bare 'power factor' prompt — and the drills it triggers", "cross_family": false }, { "answer_id": "PF-B-002", "score": 0.6516821980476379, "sibling_score": 0.6516821980476379, "answer_score": 0.48964162468910216, "sibling_qid": "KOL-2022-05-0643-Q006", "sibling_text": "how to improve power factor and why owner doesn t want to operate with low power factor what happens", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Improving power factor on board", "cross_family": false } ] }, { "qid": "MUM-2026-07-3742-Q001", "text": "Type of ship and engine?", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "MUM-2026-07-3742", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8335919380187988, "sibling_score": 0.8335919380187988, "answer_score": null, "sibling_qid": "MUM-2025-08-2357-Q001", "sibling_text": "type of ship type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.8273887634277344, "sibling_score": 0.8273887634277344, "answer_score": null, "sibling_qid": "MUM-2026-07-3668-Q004", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7620519399642944, "sibling_score": 0.7620519399642944, "answer_score": null, "sibling_qid": "KOL-2025-12-2031-Q002", "sibling_text": "type of ship and engine sailed engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "MUM-2026-07-3742-Q003", "text": "use of primary and secondary air in boiler ?", "family": "Boilers - Operations & Firing", "subtopic": "Burner / Firing / Soot Blow", "tid": "MUM-2026-07-3742", "tray": "review", "candidates": [ { "answer_id": "BFS-257-003", "score": 0.7565845847129822, "sibling_score": 0.7565845847129822, "answer_score": 0.5333043724298477, "sibling_qid": "MUM-2026-06-3590-Q003", "sibling_text": "use of primary and secondary air in boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Primary / secondary flame and the purpose of the air register", "cross_family": false }, { "answer_id": "BURNER-TYPE-002", "score": 0.6252102255821228, "sibling_score": 0.6252102255821228, "answer_score": null, "sibling_qid": "MUM-2026-07-3848-Q007", "sibling_text": "turn down ratio comparison of various types of burner cross questions primary secondary tertiary air", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Burner types compared, and primary, secondary and tertiary air", "cross_family": false }, { "answer_id": "UPT-FIRE-001", "score": 0.6109972596168518, "sibling_score": 0.6109972596168518, "answer_score": null, "sibling_qid": "KOC-2026-08-2122-Q003", "sibling_text": "boiler uptake fire actions as 2eng", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "The 4/E reports an uptake fire — your actions as 2/E", "cross_family": false } ] }, { "qid": "MUM-2026-07-3742-Q004", "text": "why Tmon is maintained onboard?", "family": "Dual Fuel / Gas Systems", "subtopic": "", "tid": "MUM-2026-07-3742", "tray": "new", "candidates": [ { "answer_id": "TCS-059-P04-012", "score": 0.42221003770828247, "sibling_score": 0.42221003770828247, "answer_score": null, "sibling_qid": "MUM-2026-01-1253-Q002", "sibling_text": "t c condition monitoring", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharger condition monitoring", "cross_family": true }, { "answer_id": "TURBO-CS-P03-014", "score": 0.4030323028564453, "sibling_score": 0.4030323028564453, "answer_score": null, "sibling_qid": "KOL-2021-10-3468-Q001", "sibling_text": "t c routine maintenance", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Routine maintenance and water-washing; nozzle-ring cleaning", "cross_family": true }, { "answer_id": "MSB-ESB-B-001", "score": 0.3945763111114502, "sibling_score": 0.3945763111114502, "answer_score": 0.30957032591104505, "sibling_qid": "KOC-2023-05-1257-Q001", "sibling_text": "maintenance on msb", "sibling_family": "", "via": "sibling", "answer_title": "Routine maintenance & health check of the MSB", "cross_family": false } ] }, { "qid": "MUM-2026-07-3743-Q003", "text": "What parameters can you explicitly control through the electronic control unit of an ME engine?", "family": "2-Stroke - Reversing & Maneuvering", "subtopic": "EICU / Manoeuvring System", "tid": "MUM-2026-07-3743", "tray": "review", "candidates": [ { "answer_id": "EICU-MAN-P01-004", "score": 0.6535817384719849, "sibling_score": 0.6535817384719849, "answer_score": null, "sibling_qid": "MUM-2026-01-2912-Q002", "sibling_text": "how control system for me engine cross questions eicu", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Control-unit failure — CCU / ECU / EICU: can you still run the engine?", "cross_family": false }, { "answer_id": "GOV-P02-003", "score": 0.6324755549430847, "sibling_score": 0.6324755549430847, "answer_score": null, "sibling_qid": "KOC-2024-04-1345-Q014", "sibling_text": "what are electronic governer inputs for me engines", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Input signals, feedback & the load signal", "cross_family": true }, { "answer_id": "EICU-MAN-P01-003", "score": 0.629368007183075, "sibling_score": 0.629368007183075, "answer_score": null, "sibling_qid": "MUM-2025-09-2846-Q006", "sibling_text": "how fuel injection controlled in me", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Main-engine manoeuvring sequence and emergency manoeuvring", "cross_family": false } ] }, { "qid": "MUM-2026-07-3743-Q004", "text": "Large Bore Cylinder Liner (LDCL) cooling system?", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "MUM-2026-07-3743", "tray": "new", "candidates": [ { "answer_id": "CYL-LINER-P01-001", "score": 0.645232617855072, "sibling_score": 0.645232617855072, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001S4", "sibling_text": "liner cooling liner calibration", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Carrying out main-engine liner calibration (gauging)", "cross_family": false }, { "answer_id": "CYL-LINER-P04-007", "score": 0.5947561264038086, "sibling_score": 0.5947561264038086, "answer_score": null, "sibling_qid": "MUM-2025-11-2866-Q010", "sibling_text": "latest developments in cyl liner he wants to here insulated mid section for reduce cooling effect to prevent moisture", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Latest developments — cold-corrosion control & the “insulated” liner", "cross_family": false }, { "answer_id": "PC-TP-003", "score": 0.5765684247016907, "sibling_score": 0.5765684247016907, "answer_score": 0.42838313579559323, "sibling_qid": "KOC-2023-07-0925-Q009", "sibling_text": "how piston crown cooling taking place lube circuit from telescopic pipe where it return back", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston crown cooling oil circuit and where the oil returns", "cross_family": false } ] }, { "qid": "MUM-2026-07-3743-Q006", "text": "Why do scale deposits predominantly form inside the boiler rather than the cascade tank? State the specific ?", "family": "Boilers - Construction & Components", "subtopic": "Cascade Tank / Condenser", "tid": "MUM-2026-07-3743", "tray": "new", "candidates": [ { "answer_id": "ACCT-583-A-001", "score": 0.6251333355903625, "sibling_score": 0.6251333355903625, "answer_score": null, "sibling_qid": "MUM-2023-11-1065-Q004", "sibling_text": "accumulation of the boiler", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Explain the boiler accumulation pressure test — what it is, its purpose, and how it is carried out (including when and at what interval)", "cross_family": true }, { "answer_id": "FURN-REF-004", "score": 0.611927330493927, "sibling_score": 0.611927330493927, "answer_score": null, "sibling_qid": "KOL-2018-12-1434-Q002", "sibling_text": "y collugation added into boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Boiler furnace construction, corrugation, swirl / contraction and furnace mountings", "cross_family": false }, { "answer_id": "BLR-TUBE-P01-002", "score": 0.6007604598999023, "sibling_score": 0.6007604598999023, "answer_score": null, "sibling_qid": "CHE-2026-05-0614-Q005", "sibling_text": "stay tubes in boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "03. Types, functions and arrangement of boiler tubes", "cross_family": false } ] }, { "qid": "MUM-2026-07-3743-Q007", "text": "Explain the operational logic of a modern fuel oil purifier and detail the common reasons for purifier overflow ?", "family": "Purifier & Centrifuges", "subtopic": "FO/LO/DO Purifier", "tid": "MUM-2026-07-3743", "tray": "new", "candidates": [ { "answer_id": "PURIF-172-004", "score": 0.64937824010849, "sibling_score": 0.64937824010849, "answer_score": 0.4746407389640808, "sibling_qid": "MUM-2025-11-1212-Q019", "sibling_text": "purifier overflow reasons", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Overflow, leakage & water-in-oil troubleshooting", "cross_family": false }, { "answer_id": "PUR-BOWL-P03-FINAL-1-003", "score": 0.633594274520874, "sibling_score": 0.633594274520874, "answer_score": null, "sibling_qid": "KOL-2017-02-1843-Q002", "sibling_text": "purifier overflowing waterline oil is coming", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "3. Overflow, Oil-Over-Water and Sludge Carry-Over — Causes, Checks and After-Overhaul Action", "cross_family": false }, { "answer_id": "SCAV-323-P02-002", "score": 0.601980447769165, "sibling_score": 0.601980447769165, "answer_score": null, "sibling_qid": "KOL-2017-03-1279-Q002", "sibling_text": "uniflow scavenging disadv exhaust valve burning reasons how hot corrosion is formed on exh v v and its chemical reaction purifier overflowing reasons how to adjust it s back pr and which part in the purifier connects with back pr v v and how feed oil temp either high or low causing overflow", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Types of scavenging and the under-piston space", "cross_family": true } ] }, { "qid": "MUM-2026-07-3744-Q002", "text": "Define Net Positive Suction Head (NPSH) and state its mathematical formula?", "family": "Pumps - Centrifugal & PD", "subtopic": "Centrifugal Pump", "tid": "MUM-2026-07-3744", "tray": "review", "candidates": [ { "answer_id": "NPSH-001", "score": 0.7139378190040588, "sibling_score": 0.7139378190040588, "answer_score": 0.5390847742557525, "sibling_qid": "MUM-2026-06-3405-Q019", "sibling_text": "net positive suction head in pump", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "What is NPSH, and what are its types?", "cross_family": false }, { "answer_id": "NPSH-003", "score": 0.6976343393325806, "sibling_score": 0.6976343393325806, "answer_score": 0.5780459582805634, "sibling_qid": "KOL-2020-02-1527-Q004", "sibling_text": "describe npsh of p p showed me diagram with pump and various heads told to write the expressn for npsh", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "What is the NPSH formula? Explain each term, calculate it, show it on a diagram, and how do you measure NPSH?", "cross_family": false }, { "answer_id": "NPSH-004", "score": 0.6289923787117004, "sibling_score": 0.6289923787117004, "answer_score": 0.5170153558254241, "sibling_qid": "KOL-2022-04-1672-Q009", "sibling_text": "what is npsh it can be changed what is effect on npsh if discharge head is increased by throttling discharge v v", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "What parameters affect NPSH? Can NPSH be changed? What is the effect on NPSH if the discharge head is increased?", "cross_family": false } ] }, { "qid": "MUM-2026-07-3744-Q003", "text": "What is the Autotuning of a Main Engine? Why is it required, and how is it executed?", "family": "Turbocharger", "subtopic": "Turbocharger Construction & Surging", "tid": "MUM-2026-07-3744", "tray": "new", "candidates": [ { "answer_id": "CPP-ATC-03", "score": 0.5876066088676453, "sibling_score": 0.5876066088676453, "answer_score": 0.5295877665281296, "sibling_qid": "MUM-2026-01-1242-Q006", "sibling_text": "auto tuning in me engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main-engine auto-tuning — purpose, method and running procedure", "cross_family": true }, { "answer_id": "TURBO-CS-P03-013", "score": 0.4780031144618988, "sibling_score": 0.4780031144618988, "answer_score": 0.3982974901795387, "sibling_qid": "KOL-2021-07-3435-Q004", "sibling_text": "turbocharger tuning", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharger tuning: cut-out, variable geometry, wastegate", "cross_family": false }, { "answer_id": "MCC-MEB-P02-004", "score": 0.3980470836162567, "sibling_score": null, "answer_score": 0.3980470836162567, "sibling_qid": "", "sibling_text": "what an intelligent smart me engine is and why owners prefer it definition an electronically controlled engine that self monitors and closes the loop adjusting injection and exhaust valve timing per cylinder to hold target performance pmax load across the range criteria to deserve the name a monitors its own combustion condition b re adjusts automatically in closed loop c offers selectable running", "sibling_family": "", "via": "answer_title", "answer_title": "What an intelligent (smart) ME engine is, and why owners prefer it", "cross_family": false } ] }, { "qid": "MUM-2026-07-3744-Q004", "text": "Explain the term SHapoli and its implementation on ships?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "SEEMP I/II/III", "tid": "MUM-2026-07-3744", "tray": "new", "candidates": [ { "answer_id": "EEXI-002", "score": 0.43678614497184753, "sibling_score": 0.43678614497184753, "answer_score": null, "sibling_qid": "KOL-2023-09-0766-Q010", "sibling_text": "system that increases the energy efficiency of the ship", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "How can the EEXI of a ship be improved or attained, and what design technologies improve energy efficiency?", "cross_family": false }, { "answer_id": "SOX-LIMIT-001", "score": 0.40608590841293335, "sibling_score": 0.40608590841293335, "answer_score": null, "sibling_qid": "KOL-2019-04-0277-Q008", "sibling_text": "d sox limit on ships coming out from ships funnel", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "MARPOL Annex VI sulphur limits — the 2020 global cap", "cross_family": false }, { "answer_id": "GA-GI-DWG-003", "score": 0.39657559990882874, "sibling_score": 0.39657559990882874, "answer_score": null, "sibling_qid": "KOL-2025-07-1000-Q002", "sibling_text": "sheer plan for naval structure", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "3. What is a sheer plan and why is it needed in drydock?", "cross_family": true } ] }, { "qid": "MUM-2026-07-3744-Q005", "text": "What is the Clover-leafing phenomenon in cylinder liners, and how does it affect lubrication?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Cylinder Lubrication", "tid": "MUM-2026-07-3744", "tray": "review", "candidates": [ { "answer_id": "CYL-LUB-B-001", "score": 0.6678629517555237, "sibling_score": 0.6678629517555237, "answer_score": null, "sibling_qid": "KOL-2016-11-1254-Q002", "sibling_text": "type of lubrication b w liner n ring one property of lube oil responsible for it abt cloverleafing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Lubrication regime and oil film between piston ring and liner", "cross_family": false }, { "answer_id": "CLVR-WEAR-001", "score": 0.5770559310913086, "sibling_score": 0.5770559310913086, "answer_score": 0.45777734518051144, "sibling_qid": "KOC-2022-07-0968-Q012", "sibling_text": "clover leafing how it is caused location of wear he says due to over lubrication and alkalinity", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Cloverleaf wear — what it is, where, why, and how to reduce or rectify it", "cross_family": true }, { "answer_id": "CYL-LUB-A-001", "score": 0.5492319464683533, "sibling_score": 0.5492319464683533, "answer_score": null, "sibling_qid": "KOL-2020-02-3319-Q004", "sibling_text": "cylinder liner lubrication", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Cylinder lubrication — how it is carried out and its purpose", "cross_family": false } ] }, { "qid": "MUM-2026-07-3744-Q006", "text": "Explain Transient Temperature distribution in engine components?", "family": "NDT & Material Testing", "subtopic": "Creep / Fatigue Failure", "tid": "MUM-2026-07-3744", "tray": "new", "candidates": [ { "answer_id": "HT-TCS-B-001", "score": 0.5820474028587341, "sibling_score": 0.5820474028587341, "answer_score": null, "sibling_qid": "KOL-2018-03-1356-Q009", "sibling_text": "tempering done in engine room parts", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Tempering — purpose, classes and where it is used on board", "cross_family": false }, { "answer_id": "EXHV-297-007", "score": 0.54636549949646, "sibling_score": 0.54636549949646, "answer_score": null, "sibling_qid": "MUM-2026-03-2647-Q008", "sibling_text": "temperature in exhaust manifold and turbocharger inlet", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust manifold / gas receiver — construction, joints, inspection & temperature locations", "cross_family": true }, { "answer_id": "HT-A-001", "score": 0.5181465148925781, "sibling_score": 0.5181465148925781, "answer_score": null, "sibling_qid": "MUM-2026-05-3130-Q003", "sibling_text": "heat treatment performed on crankshaft", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Heat treatment: what it is, the main methods, and why it is done", "cross_family": false } ] }, { "qid": "MUM-2026-07-3745-Q001", "text": "What are the special firefighting techniques and risks associated with Electric Vehicle (EV) fires on car carriers?", "family": "Cargo Ops - Gas Carriers", "subtopic": "IGC / Gas Carrier Safety", "tid": "MUM-2026-07-3745", "tray": "new", "candidates": [ { "answer_id": "FIXED-FF-B-001", "score": 0.6042523384094238, "sibling_score": 0.6042523384094238, "answer_score": null, "sibling_qid": "NOI-2026-09-0010-Q002", "sibling_text": "type of fixed fire fighting in car carrier", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fixed fire-fighting systems carried onboard and the risks they protect", "cross_family": true }, { "answer_id": "IGC-GAS-006", "score": 0.591884434223175, "sibling_score": 0.591884434223175, "answer_score": null, "sibling_qid": "KOL-2019-03-0264-Q004", "sibling_text": "fire fighting appliances in gas carriers for e r deck", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Deck fixed dry chemical powder (DCP) fire-extinguishing system", "cross_family": false }, { "answer_id": "FIRE-P04-07", "score": 0.5717467665672302, "sibling_score": 0.5717467665672302, "answer_score": 0.43972035944461824, "sibling_qid": "MUM-2024-02-0166-Q002", "sibling_text": "means of fighting fire in cargo hold of car carrier ship", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Ro-Ro / vehicle-carrier fire safety — SOLAS II-2/20, II-2/20-1 and MSC.550(108)", "cross_family": true } ] }, { "qid": "MUM-2026-07-3745-Q002", "text": "Differentiate between a \"Condition of Class\" and a \"Memorandum of Class.\" Explain the step-by-step procedure for onboard complaint handling and grievance redressal mechanism?", "family": "Ship Construction & Stability", "subtopic": "DEFINITION", "tid": "MUM-2026-07-3745", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-011", "score": 0.5257006287574768, "sibling_score": 0.5257006287574768, "answer_score": 0.42593768835067747, "sibling_qid": "MUM-2025-08-0372-Q004", "sibling_text": "complaun procedure onboard", "sibling_family": "MLC", "via": "sibling", "answer_title": "The on-board complaint and grievance procedure", "cross_family": true }, { "answer_id": "COC-001", "score": 0.45116761326789856, "sibling_score": 0.45116761326789856, "answer_score": 0.33427196443080903, "sibling_qid": "MUM-2026-05-3187-Q002S3", "sibling_text": "if you have some defects onboard what will be the action of class", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is a Condition of Class? Give examples, say where it is found, how much time is given to rectify it, and what happens if it is not met in time.", "cross_family": true }, { "answer_id": "COC-002", "score": 0.43948882818222046, "sibling_score": 0.43948882818222046, "answer_score": 0.4089861899614334, "sibling_qid": "KOL-2021-05-0505-Q002", "sibling_text": "difference between class and condition of assignment", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the difference between a Condition of Class and a Condition of Assignment?", "cross_family": true } ] }, { "qid": "MUM-2026-07-3745-Q004", "text": "Detail the latest regulations under SOLAS Chapter 12?", "family": "General Marine Engineering", "subtopic": "Rules and Regulation", "tid": "MUM-2026-07-3745", "tray": "new", "candidates": [ { "answer_id": "SOLAS12-BC-B-002", "score": 0.5830672979354858, "sibling_score": 0.5830672979354858, "answer_score": 0.4518769204616547, "sibling_qid": "KOC-2025-10-0672-Q002", "sibling_text": "solas chapter 12 how many regulations name all", "sibling_family": "", "via": "sibling", "answer_title": "SOLAS Chapter XII — the 14 regulations (list)", "cross_family": false }, { "answer_id": "SOLAS12-C-001", "score": 0.5779346227645874, "sibling_score": 0.5779346227645874, "answer_score": 0.44891211688518523, "sibling_qid": "KOC-2025-07-0621-Q003", "sibling_text": "solas chapter 12 name and number of regulations", "sibling_family": "", "via": "sibling", "answer_title": "Explain SOLAS Chapter XII for bulk carriers — oral-exam overview", "cross_family": false }, { "answer_id": "SOLAS-XII-BC-003", "score": 0.5736329555511475, "sibling_score": 0.5736329555511475, "answer_score": null, "sibling_qid": "MUM-2023-01-0079-Q003", "sibling_text": "what is regulation 12 chapter 12 of solas", "sibling_family": "SOLAS - General (HOLD)", "via": "sibling", "answer_title": "SOLAS Chapter XII Regulation 12 — hold, ballast and dry-space water ingress alarms", "cross_family": true } ] }, { "qid": "MUM-2026-07-3745-Q007", "text": "What are the capacity and charging requirements for main starting air bottles?", "family": "2-Stroke - Reversing & Maneuvering", "subtopic": "Air Distributor", "tid": "MUM-2026-07-3745", "tray": "new", "candidates": [ { "answer_id": "MAC-353-011", "score": 0.5815227627754211, "sibling_score": 0.5815227627754211, "answer_score": 0.5148176550865173, "sibling_qid": "CHE-2023-04-0173-Q002", "sibling_text": "mac capacity capacity of air bottle", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Main air compressor specifications / capacity, and air-bottle capacity", "cross_family": true }, { "answer_id": "DCP-FIXED-A-003", "score": 0.5196602940559387, "sibling_score": 0.5196602940559387, "answer_score": null, "sibling_qid": "KOC-2025-01-0511-Q003", "sibling_text": "nitrogen bottle pressure and capacity", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Capacities, pressures, relief settings, regulations and calculation", "cross_family": true }, { "answer_id": "CO2-CALC-P01-002", "score": 0.5127382874488831, "sibling_score": 0.5127382874488831, "answer_score": null, "sibling_qid": "MUM-2026-06-3413-Q008", "sibling_text": "co2 bottle filling requirement", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "How is the required CO2 quantity and number of bottles calculated for an engine-room total-flooding system?", "cross_family": true } ] }, { "qid": "MUM-2026-07-3746-Q001", "text": "What are the specific requirements for an Unattended Machinery Space (UMS) notation?", "family": "ISM Code", "subtopic": "UMS Requirement / Hours", "tid": "MUM-2026-07-3746", "tray": "new", "candidates": [ { "answer_id": "UMS-310-001", "score": 0.5506290197372437, "sibling_score": 0.5506290197372437, "answer_score": 0.41835349798202515, "sibling_qid": "KOL-2018-08-3169-Q008", "sibling_text": "ums engine room requirements", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a UMS ship and what does SOLAS require? (Part E, regs 46–53)", "cross_family": false }, { "answer_id": "A60-BCLASS-005", "score": 0.5395392179489136, "sibling_score": 0.5395392179489136, "answer_score": null, "sibling_qid": "KOL-2021-08-0542-Q004", "sibling_text": "what is machinery space type a constructional requirement", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Machinery space of category A (and ‘category B’)", "cross_family": true }, { "answer_id": "UMS-310-003", "score": 0.5240604281425476, "sibling_score": 0.5240604281425476, "answer_score": null, "sibling_qid": "KOL-2019-03-3226-Q001", "sibling_text": "safeties for machinery in ums class vessel", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Machinery and fire-safety features required for the UMS condition", "cross_family": false } ] }, { "qid": "MUM-2026-07-3746-Q002", "text": "Detail the scope and survey requirements of the International Air Pollution Prevention (IAPP) certificate?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "IAPP", "tid": "MUM-2026-07-3746", "tray": "review", "candidates": [ { "answer_id": "IAPP-595-001", "score": 0.6628766655921936, "sibling_score": 0.6628766655921936, "answer_score": 0.49510846734046937, "sibling_qid": "KOC-2025-07-0617-Q007", "sibling_text": "iapp certificate and what you will check for preparation of survey", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "You have an IAPP survey tomorrow. What preparation do you do, what will the surveyor check, and what documents and certificates will you show him?", "cross_family": false }, { "answer_id": "IAPP-595-002", "score": 0.6178515553474426, "sibling_score": 0.6178515553474426, "answer_score": null, "sibling_qid": "KOC-2023-10-0236-Q008", "sibling_text": "criteria for issuing iapp under annexe 6 air pollution", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "How is an IAPP certificate obtained? What documents are required, what parameters are checked before issue, and what happens when a new auxiliary engine is installed?", "cross_family": false }, { "answer_id": "EIAPP-600-005", "score": 0.5920787453651428, "sibling_score": 0.5920787453651428, "answer_score": 0.44512706398963925, "sibling_qid": "KOL-2019-05-0284-Q003", "sibling_text": "eiaap certificate survey what s are the checks surveyor check how", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What does the surveyor check for the EIAPP survey, and how?", "cross_family": false } ] }, { "qid": "MUM-2026-07-3746-Q003", "text": "What are the critical safety features and interlocks of a shipboard Incinerator as per SOLAS?", "family": "Auxiliary Equipment", "subtopic": "", "tid": "MUM-2026-07-3746", "tray": "new", "candidates": [ { "answer_id": "INCIN-001", "score": 0.5775766968727112, "sibling_score": 0.5775766968727112, "answer_score": 0.5406645774841309, "sibling_qid": "MUM-2026-06-3497-Q005", "sibling_text": "safeties in incinerator", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Incinerator safeties, alarms and shutdowns", "cross_family": false }, { "answer_id": "INCIN-004", "score": 0.5454434752464294, "sibling_score": 0.5454434752464294, "answer_score": null, "sibling_qid": "KOL-2023-03-3594-Q002", "sibling_text": "incinerator according to marpol maintainenece", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Incinerator PMS, maintenance and PSC verification", "cross_family": false }, { "answer_id": "INCIN-002", "score": 0.5375983715057373, "sibling_score": 0.5375983715057373, "answer_score": null, "sibling_qid": "KOL-2017-12-0130-Q003", "sibling_text": "what not to burn in incinerator 4 international shore coupling thickness of gasket used what pr withstand the gasket where is the location where to put", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "What you can and cannot burn under MARPOL", "cross_family": false } ] }, { "qid": "MUM-2026-07-3746-Q004", "text": "If the Chief Engineer is unwell and you, as the Second Engineer, are taking a bunker, what specific items and parameters will you verify in the Bunker Delivery Note (BDN)?", "family": "MARPOL - General & Compliance", "subtopic": "", "tid": "MUM-2026-07-3746", "tray": "review", "candidates": [ { "answer_id": "BUNK-PLAN-004", "score": 0.7491198182106018, "sibling_score": 0.7491198182106018, "answer_score": null, "sibling_qid": "CHE-2024-06-0397-Q001", "sibling_text": "ce not there bunker barge arrived what you will do start with sopep scrubber plug quantity check bdn flash pont density sulphur content viscosity emergency signal grade of fuel", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Bunker plan: tank selection, quantity / overflow control, calculation and procedure", "cross_family": false }, { "answer_id": "BUNK-PLAN-001", "score": 0.743826150894165, "sibling_score": 0.743826150894165, "answer_score": 0.5424888849258422, "sibling_qid": "KOL-2022-08-0671-Q002", "sibling_text": "during bunkering operation as 2nd engineer whall all checks he don t want to listen sounding temperature rate just want to listen leakage any pipeline scuppers and communication with bridge ecr manifold ccr acknowledge with ce", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Second Engineer's duties, preparation and checks for bunkering", "cross_family": false }, { "answer_id": "BUNK-PLAN-002", "score": 0.7208312153816223, "sibling_score": 0.7208312153816223, "answer_score": null, "sibling_qid": "KOL-2025-09-1076-Q008", "sibling_text": "as 2nd engineer u r taking round on deck during bunker what u will check key ans bunker house grounding to be checked wilden pump grounding", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Safety, environmental, electrical and deck-round precautions during bunkering", "cross_family": false } ] }, { "qid": "MUM-2026-07-3746-Q005", "text": "Who attends the shipboard Management Review meeting, and what specific agendas are discussed and processed there?", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "MUM-2026-07-3746", "tray": "new", "candidates": [ { "answer_id": "ISM-AUD-P02-006", "score": 0.6468775272369385, "sibling_score": 0.6468775272369385, "answer_score": 0.41151850074529644, "sibling_qid": "KOL-2025-09-1070-Q004", "sibling_text": "managemt review who does it and why is it done or required on ship", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Master's review, company / management review and change management", "cross_family": false }, { "answer_id": "ISM-DPA-006", "score": 0.6365222334861755, "sibling_score": 0.6365222334861755, "answer_score": 0.4240795627236366, "sibling_qid": "CHE-2026-05-0586-Q016", "sibling_text": "going for management review meeting with dpa from ship how will u present for engine room he is expecting before meeting you have to conduct the meeting in engine room and ask for crews problem", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Presenting the engine room in a management review meeting with the DPA", "cross_family": false }, { "answer_id": "ISM-ELEM-006", "score": 0.5182581543922424, "sibling_score": 0.5182581543922424, "answer_score": 0.40730146169662473, "sibling_qid": "MUM-2025-06-0335-Q001", "sibling_text": "management review", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Master’s review & management review", "cross_family": false } ] }, { "qid": "MUM-2026-07-3746-Q006", "text": "Explain the Angle of Down flooding?", "family": "Electrical - Generator & Alternator", "subtopic": "Synchronization", "tid": "MUM-2026-07-3746", "tray": "review", "candidates": [ { "answer_id": "DS-P04-002", "score": 0.6892611980438232, "sibling_score": 0.6892611980438232, "answer_score": null, "sibling_qid": "MUM-2026-06-3576-Q007", "sibling_text": "angle pf down flooding", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Flooding, subdivision, margin line, downflooding and survivability", "cross_family": true }, { "answer_id": "MARGIN-LINE-005", "score": 0.5332408547401428, "sibling_score": 0.5332408547401428, "answer_score": 0.4540845513343811, "sibling_qid": "KOC-2023-07-0196-Q013", "sibling_text": "explain margin line and angle of down flooding", "sibling_family": "", "via": "sibling", "answer_title": "Margin line and the angle of downflooding", "cross_family": false }, { "answer_id": "LOLL-P02-005", "score": 0.5292824506759644, "sibling_score": 0.5292824506759644, "answer_score": 0.3804219827055931, "sibling_qid": "KOL-2016-11-0029-Q003", "sibling_text": "angle of lol angle of lurch angle of downflooding and practical application angle of vanishing stability", "sibling_family": "", "via": "sibling", "answer_title": "5. Loll among the limits — vanishing stability, lurch, downflooding, contraflexure", "cross_family": false } ] }, { "qid": "MUM-2026-07-3747-Q001", "text": "Type of ship ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-07-3747", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.837036669254303, "sibling_score": 0.837036669254303, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.801808774471283, "sibling_score": 0.801808774471283, "answer_score": 0.5473707109689713, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8005447387695312, "sibling_score": 0.8005447387695312, "answer_score": 0.5217237085103988, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2026-07-3747-Q004", "text": "⁠SOLAS CHAP -13,14,15 ?", "family": "ISPS", "subtopic": "SOLAS Ch.XI-2 Security", "tid": "MUM-2026-07-3747", "tray": "new", "candidates": [ { "answer_id": "SOLAS-OVW-003", "score": 0.5970036387443542, "sibling_score": 0.5970036387443542, "answer_score": null, "sibling_qid": "KOL-2017-07-0101-Q001", "sibling_text": "1 chapter 13 and 14 of solas", "sibling_family": "", "via": "sibling", "answer_title": "SOLAS Chapter XIV — ships operating in polar waters (Polar Code)", "cross_family": false }, { "answer_id": "SOLAS-OVW-002", "score": 0.5935004353523254, "sibling_score": 0.5935004353523254, "answer_score": null, "sibling_qid": "KOL-2026-05-0071-Q004", "sibling_text": "solas chap 13", "sibling_family": "", "via": "sibling", "answer_title": "SOLAS Chapter XIII — verification of compliance (III Code / IMSAS)", "cross_family": false }, { "answer_id": "SOLAS12-C-001", "score": 0.5931263566017151, "sibling_score": 0.5931263566017151, "answer_score": null, "sibling_qid": "KOL-2019-12-0361-Q003", "sibling_text": "solas chapter 12 13", "sibling_family": "", "via": "sibling", "answer_title": "Explain SOLAS Chapter XII for bulk carriers — oral-exam overview", "cross_family": false } ] }, { "qid": "MUM-2026-07-3747-Q005", "text": "⁠Synopsis Report?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "LO Test / Analysis", "tid": "MUM-2026-07-3747", "tray": "new", "candidates": [ { "answer_id": "CSR-585-001", "score": 0.5418936610221863, "sibling_score": 0.5418936610221863, "answer_score": 0.2958530873060226, "sibling_qid": "KOC-2021-10-0030-Q004", "sibling_text": "continuous synopsis record", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the Continuous Synopsis Record (CSR)? Explain its purpose and requirements.", "cross_family": true }, { "answer_id": "LO-TEST-P01-003", "score": 0.5396494269371033, "sibling_score": 0.5396494269371033, "answer_score": null, "sibling_qid": "KOC-2023-01-1806-Q008", "sibling_text": "lo analysis report", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Reading a shore analysis report: metals, FTIR and red flags", "cross_family": false }, { "answer_id": "FQCC-583-A-005", "score": 0.4672929644584656, "sibling_score": 0.4672929644584656, "answer_score": null, "sibling_qid": "MUM-2025-09-2411-Q005", "sibling_text": "fo analysis report all checks", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "The bunker / fuel oil analysis report — what is checked and who says so", "cross_family": true } ] }, { "qid": "MUM-2026-07-3747-Q006", "text": "⁠LIRT?", "family": "Ship Construction & Stability", "subtopic": "DEFINITION", "tid": "MUM-2026-07-3747", "tray": "new", "candidates": [ { "answer_id": "TONN-007", "score": 0.47208863496780396, "sibling_score": 0.47208863496780396, "answer_score": null, "sibling_qid": "MUM-2026-06-3480-Q005", "sibling_text": "grt nrt", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Differentiate GT, NT, GRT/NRT, DWT, Lightweight and Displacement", "cross_family": false }, { "answer_id": "EPIRB-SART-001", "score": 0.46236351132392883, "sibling_score": 0.46236351132392883, "answer_score": null, "sibling_qid": "KOL-2017-09-0112-Q004", "sibling_text": "lrit vdr epirb sart mob marker", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What is the difference between EPIRB and SART? Give the function, construction, use and operation of each.", "cross_family": true }, { "answer_id": "CYL-LUB-A-004", "score": 0.4393112063407898, "sibling_score": 0.4393112063407898, "answer_score": null, "sibling_qid": "KOL-2026-07-4260-Q005", "sibling_text": "ldcl in liner", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Types of cylinder lubrication system", "cross_family": true } ] }, { "qid": "MUM-2026-07-3747-Q008", "text": "What is use of Insulation ?", "family": "Electrical - Motors & Starters", "subtopic": "IR Test / Insulation Resistance", "tid": "MUM-2026-07-3747", "tray": "review", "candidates": [ { "answer_id": "INS-CLASS-001", "score": 0.6976334452629089, "sibling_score": 0.6976334452629089, "answer_score": null, "sibling_qid": "MUM-2025-04-1490-Q002", "sibling_text": "insulation system used", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What is meant by insulation class?", "cross_family": false }, { "answer_id": "CABLE-INSUL-D-001", "score": 0.6679782867431641, "sibling_score": 0.6679782867431641, "answer_score": null, "sibling_qid": "MUM-2025-08-1629-Q006", "sibling_text": "where we use this insulation", "sibling_family": "", "via": "sibling", "answer_title": "Insulation: materials, classes and required properties", "cross_family": false }, { "answer_id": "INS-CLASS-004", "score": 0.6596348285675049, "sibling_score": 0.6596348285675049, "answer_score": 0.3866808548569679, "sibling_qid": "KOC-2022-12-1214-Q007", "sibling_text": "application of various insulation class", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Where is class F insulation used, and what are the applications of the various classes?", "cross_family": false } ] }, { "qid": "MUM-2026-07-3747-Q012", "text": "⁠One wire is having 100A current, what will show on clamp meter?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Galvanometer / Multimeter / Clamp Meter", "tid": "MUM-2026-07-3747", "tray": "review", "candidates": [ { "answer_id": "GMCM-583-A-010", "score": 0.8394073843955994, "sibling_score": 0.8394073843955994, "answer_score": 0.5617847561836242, "sibling_qid": "MUM-2026-05-3003-Q001S2", "sibling_text": "resultant current in clamp meter with 100 amps", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "10. 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The clamp (tong) meter — working principle, types, and why only a single conductor is clamped", "cross_family": false }, { "answer_id": "GMCM-583-A-011", "score": 0.464342987537384, "sibling_score": null, "answer_score": 0.464342987537384, "sibling_qid": "", "sibling_text": "11 using a clamp meter in service what it can measure and where to check on a running motor read at the starter load side of the contactor and overload one core at a time compare all three phases against each other against rated current against the line voltages and against the healthy baseline", "sibling_family": "", "via": "answer_title", "answer_title": "11. Using a clamp meter in service — what it can measure, and where to check on a running motor", "cross_family": false } ] }, { "qid": "MUM-2026-07-3747-Q018", "text": "What is normal value of PI?", "family": "Electrical - Motors & Starters", "subtopic": "IR Test / Insulation Resistance", "tid": "MUM-2026-07-3747", "tray": "review", "candidates": [ { "answer_id": "PI-211-002", "score": 0.6822978854179382, "sibling_score": 0.6822978854179382, "answer_score": null, "sibling_qid": "KOL-2026-08-4162-Q016S2", "sibling_text": "what is pi test it s value", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "How the PI test is carried out — equipment, procedure, leakage-current behaviour", "cross_family": false }, { "answer_id": "PI-211-001", "score": 0.654217541217804, "sibling_score": 0.654217541217804, "answer_score": 0.28213030099868774, "sibling_qid": "KOL-2025-10-4065-Q009", "sibling_text": "pi test value formula", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What polarization index is, why we use it, and the value expected", "cross_family": false }, { "answer_id": "PI-211-004", "score": 0.5372151136398315, "sibling_score": 0.5372151136398315, "answer_score": 0.31763640642166135, "sibling_qid": "KOL-2023-06-2660-Q007", "sibling_text": "pi test and dar and test values", "sibling_family": "Electrical - 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Motors & Starters", "subtopic": "IP Rating", "tid": "MUM-2026-07-3749", "tray": "review", "candidates": [ { "answer_id": "TG-MOTOR-001", "score": 0.7173363566398621, "sibling_score": 0.7173363566398621, "answer_score": null, "sibling_qid": "MUM-2026-06-3456-Q017", "sibling_text": "type of motor used for steering gear system", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What type of motor is used for the turning gear, and what type of rotor does it have?", "cross_family": false }, { "answer_id": "SGM-ELEC-002", "score": 0.7123420834541321, "sibling_score": 0.7123420834541321, "answer_score": 0.496916663646698, "sibling_qid": "MUM-2026-01-1906-Q006S2", "sibling_text": "steering gear motor type", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What type of motor is the steering gear motor, how does it differ from other engine-room motors, and how do you order one?", "cross_family": false }, { "answer_id": "SGM-ELEC-001", "score": 0.6864650249481201, "sibling_score": 0.6864650249481201, "answer_score": null, "sibling_qid": "MUM-2025-09-1657-Q003S5", "sibling_text": "steering gear motor trips", "sibling_family": "Electrical - 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Lubrication & Bearings", "via": "sibling", "answer_title": "Removing, overhauling, inspecting and refitting the bottom end bearing", "cross_family": false }, { "answer_id": "CXH-BRG-FINAL-1-001", "score": 0.7018259167671204, "sibling_score": 0.7018259167671204, "answer_score": 0.5227697163820266, "sibling_qid": "KOL-2017-08-3083-Q001", "sibling_text": "cross head removal and bearing inspection", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead bearing survey: open-up, removal & inspection", "cross_family": false } ] }, { "qid": "MUM-2026-07-3750-Q008", "text": "Why does the Specific Fuel Oil Consumption (SFOC) increase during slow steaming? ", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "SFOC", "tid": "MUM-2026-07-3750", "tray": "new", "candidates": [ { "answer_id": "SFOC-001", "score": 0.6067052483558655, "sibling_score": 0.6067052483558655, "answer_score": null, "sibling_qid": "KOL-2025-04-3776-Q005", "sibling_text": "specific fuel oil consumption", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What is SFOC? Definition, formula, unit — and how you get the corrected density", "cross_family": false }, { "answer_id": "ENG-DERATE-004", "score": 0.5687950253486633, "sibling_score": 0.5687950253486633, "answer_score": 0.48568983674049376, "sibling_qid": "KOC-2025-10-1966-Q007", "sibling_text": "problems with slow steaming", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What is slow steaming, and what problems can occur during slow-steaming / derated operation?", "cross_family": false }, { "answer_id": "BLR-OPS-011", "score": 0.530352771282196, "sibling_score": 0.530352771282196, "answer_score": 0.42170575410127636, "sibling_qid": "KOL-2019-11-3288-Q006", "sibling_text": "what are the reasons for boiler fuel oil consumption high", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "What are the reasons for high boiler fuel-oil consumption, and what action would you take?", "cross_family": true } ] }, { "qid": "MUM-2026-07-3750-Q009", "text": "At what internal pressure do the crankcase explosion relief doors lift, and what are their mandatory safety features?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankcase Relief Door", "tid": "MUM-2026-07-3750", "tray": "review", "candidates": [ { "answer_id": "CCE-322-004", "score": 0.6868624091148376, "sibling_score": 0.6868624091148376, "answer_score": null, "sibling_qid": "KOC-2022-02-0957-Q006", "sibling_text": "safeties against crankcase explosion and draw of relief door", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Preventive measures and safety devices", "cross_family": false }, { "answer_id": "CRD-003", "score": 0.6386047005653381, "sibling_score": 0.6386047005653381, "answer_score": null, "sibling_qid": "KOL-2022-07-3553-Q006", "sibling_text": "crankcase relief doors testing how to determine opening pressure", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Testing & opening-pressure verification of crankcase relief valves", "cross_family": false }, { "answer_id": "CRD-001", "score": 0.6255398392677307, "sibling_score": 0.6255398392677307, "answer_score": 0.508298522233963, "sibling_qid": "MUM-2026-06-3502-Q007", "sibling_text": "relief door opening pressure", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Construction, working & flame arrester of crankcase relief door", "cross_family": false } ] }, { "qid": "MUM-2026-07-3750-Q010", "text": "Why are belts used in certain refrigeration compressors rather than direct couplings?", "family": "Refrigeration & AC", "subtopic": "Sub-cooling / Superheat", "tid": "MUM-2026-07-3750", "tray": "new", "candidates": [ { "answer_id": "CCSC-314-002", "score": 0.6486223340034485, "sibling_score": 0.6486223340034485, "answer_score": null, "sibling_qid": "KOL-2019-10-1492-Q008", "sibling_text": "capacity control refrigeration refrigerant charging why belt driven", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Compressor capacity control and the capacity controller", "cross_family": false }, { "answer_id": "REEF-COMP-005", "score": 0.6339026689529419, "sibling_score": 0.6339026689529419, "answer_score": 0.5460309028625489, "sibling_qid": "KOC-2024-11-1017-Q006", "sibling_text": "reefer belt driven reason int no qus", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "V-belt drive on reefer compressors — why, and checking condition, alignment, tension, replacement", "cross_family": false }, { "answer_id": "REEF-COMP-008", "score": 0.5386751294136047, "sibling_score": 0.5386751294136047, "answer_score": null, "sibling_qid": "KOL-2023-07-3617-Q006", "sibling_text": "cooling arrangement of compressor in refrigeration system", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Valves, clearances, oil carry-over, refrigerant-in-oil, frosting, tandem valves, cooling — fault checks", "cross_family": false } ] }, { "qid": "MUM-2026-07-3751-Q001", "text": "What are the selection criteria for Port State Control (PSC) to know which vessel to inspect? Explain initial ?", "family": "Surveys - Statutory", "subtopic": "PSC / Flag / RO / CIC / MoU", "tid": "MUM-2026-07-3751", "tray": "review", "candidates": [ { "answer_id": "PSC-002", "score": 0.7016552686691284, "sibling_score": 0.7016552686691284, "answer_score": null, "sibling_qid": "MUM-2026-07-3719-Q002", "sibling_text": "psc inspection criteria for psc to visit a vessel on board", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "2. Types, criteria and escalation of a PSC inspection", "cross_family": false }, { "answer_id": "PSC-001", "score": 0.6518223285675049, "sibling_score": 0.6518223285675049, "answer_score": null, "sibling_qid": "KOC-2024-12-0487-Q003", "sibling_text": "under which rule psc enters vessels", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "1. What is PSC, why it is required, and its legal basis and scope", "cross_family": false }, { "answer_id": "PSC-RO-P02-003", "score": 0.6030829548835754, "sibling_score": 0.6030829548835754, "answer_score": null, "sibling_qid": "KOL-2018-04-0172-Q001", "sibling_text": "instrument under imo which gives power to psc to conduct inspection", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What gives PSC its authority to inspect, and what references are used?", "cross_family": false } ] }, { "qid": "MUM-2026-07-3751-Q002", "text": "inspection, clear grounds, and detailed inspection?", "family": "Surveys - Statutory", "subtopic": "PSC / Flag / RO / CIC / MoU", "tid": "MUM-2026-07-3751", "tray": "review", "candidates": [ { "answer_id": "AUDIT-IE-002", "score": 0.6756666302680969, "sibling_score": 0.6756666302680969, "answer_score": null, "sibling_qid": "MUM-2026-05-3290-Q005", "sibling_text": "initial and detailed inspection", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "As Second Engineer, preparing for and handling an internal audit on board", "cross_family": false }, { "answer_id": "DCG-001", "score": 0.5920323729515076, "sibling_score": 0.5920323729515076, "answer_score": 0.4730841904878616, "sibling_qid": "KOC-2026-08-2114-Q003", "sibling_text": "clear grounds", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is meant by \"clear grounds\", under PSC and under SOLAS? Give examples and state the conditions.", "cross_family": false }, { "answer_id": "PSC-005", "score": 0.5756343007087708, "sibling_score": 0.5756343007087708, "answer_score": null, "sibling_qid": "MUM-2025-06-0327-Q006", "sibling_text": "psc clear grounds scope of psc inspection with respect to ism", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "5. As second engineer: preparing for PSC and ensuring compliance", "cross_family": false } ] }, { "qid": "MUM-2026-07-3751-Q005", "text": "As a Second Engineer, what specific preparations will you make for an Interim SMC and an Initial SMC survey?", "family": "ISM Code", "subtopic": "SMC / DOC", "tid": "MUM-2026-07-3751", "tray": "review", "candidates": [ { "answer_id": "ISM-SMC-B-002", "score": 0.6720050573348999, "sibling_score": 0.6720050573348999, "answer_score": null, "sibling_qid": "MUM-2026-02-0761-Q005", "sibling_text": "initial survey and interim survey of smc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Interim SMC — occasions, procedure and validity", "cross_family": false }, { "answer_id": "ISM-2E-C-001", "score": 0.6201122999191284, "sibling_score": 0.6201122999191284, "answer_score": 0.43458014726638794, "sibling_qid": "KOC-2023-07-0195-Q003", "sibling_text": "ism survey preparation by 2nd engg apart from machinery and documentation", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM audit / survey preparation as Second Engineer — beyond the paperwork", "cross_family": false }, { "answer_id": "ISM-SMC-B-003", "score": 0.598317563533783, "sibling_score": 0.598317563533783, "answer_score": null, "sibling_qid": "MUM-2023-07-0113-Q006", "sibling_text": "intermediate smc and additional smc when it is done and what all things checked", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "SMC audit cycle — initial, intermediate, renewal, additional", "cross_family": false } ] }, { "qid": "MUM-2026-07-3751-Q006", "text": "Explain the statutory regulations regarding the Secondary Barrier in gas carriers?", "family": "Cargo Ops - Gas Carriers", "subtopic": "IGC / Gas Carrier Safety", "tid": "MUM-2026-07-3751", "tray": "new", "candidates": [ { "answer_id": "GC-TANK-003", "score": 0.5060909390449524, "sibling_score": 0.5060909390449524, "answer_score": null, "sibling_qid": "KOL-2024-08-0852-Q002", "sibling_text": "primary and secondary barrier of cargo tank", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "What is a Type B independent tank and the purpose of a partial secondary barrier?", "cross_family": false }, { "answer_id": "SOLAS12-BC-F-001", "score": 0.4697481095790863, "sibling_score": 0.4697481095790863, "answer_score": 0.436152908205986, "sibling_qid": "KOL-2019-04-0279-Q004", "sibling_text": "what are the primary secondary bariers for a bulk carier", "sibling_family": "", "via": "sibling", "answer_title": "Barriers, foremost bulkheads, hatchways & double-side skin", "cross_family": false }, { "answer_id": "IGC-GAS-016", "score": 0.45123153924942017, "sibling_score": 0.45123153924942017, "answer_score": 0.39290038645267483, "sibling_qid": "KOL-2022-07-3555-Q005", "sibling_text": "in lng ships both primary n secondary barrier breached what will be your action", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Emergency action — primary and secondary barrier breach", "cross_family": false } ] }, { "qid": "MUM-2026-07-3751-Q009", "text": "What are the special construction and structural features of a Car Carrier?", "family": "SOLAS - General (HOLD)", "subtopic": "Solas Chapter 12 - Bulk", "tid": "MUM-2026-07-3751", "tray": "new", "candidates": [ { "answer_id": "SHIPTYPE-BTC-001", "score": 0.554999828338623, "sibling_score": 0.554999828338623, "answer_score": 0.47305455207824704, "sibling_qid": "KOC-2025-11-0721-Q013", "sibling_text": "container ship special constructional features", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Container ship construction — cross-section, framing and special structural features", "cross_family": true }, { "answer_id": "DS-BASIC-P01-001", "score": 0.5366005897521973, "sibling_score": 0.5366005897521973, "answer_score": null, "sibling_qid": "KOL-2025-10-1103-Q004", "sibling_text": "damage stability and why more in car carriers", "sibling_family": "", "via": "sibling", "answer_title": "Damage stability: definition, meaning and oral overview", "cross_family": false }, { "answer_id": "BC-HOPPER-G-003", "score": 0.5322473049163818, "sibling_score": 0.5322473049163818, "answer_score": null, "sibling_qid": "KOL-2019-12-0368-Q002", "sibling_text": "construction feature of bulk carrier and hopper tank construction and strenghting member", "sibling_family": "", "via": "sibling", "answer_title": "Hopper / topside tank construction and strengthening members", "cross_family": false } ] }, { "qid": "MUM-2026-07-3751-Q010", "text": "Explain the concept and significance of Multiple Load lines?", "family": "Load Line Convention", "subtopic": "", "tid": "MUM-2026-07-3751", "tray": "review", "candidates": [ { "answer_id": "LL-CONV-P06-002", "score": 0.7497245669364929, "sibling_score": 0.7497245669364929, "answer_score": 0.39361814260482786, "sibling_qid": "MUM-2026-05-3337-Q004", "sibling_text": "multiple load lines", "sibling_family": "Load Line Convention", "via": "sibling", "answer_title": "LLC-P06-02 - Types of load lines: standard, seasonal, timber, WNA and multiple load lines", "cross_family": false }, { "answer_id": "LL-CONV-P04-002", "score": 0.5700783133506775, "sibling_score": 0.5700783133506775, "answer_score": null, "sibling_qid": "MUM-2026-09-3890-Q005", "sibling_text": "multiple load line certificate", "sibling_family": "Load Line Convention", "via": "sibling", "answer_title": "Load Line Convention, certificates, assigning authority and detention risk", "cross_family": false }, { "answer_id": "LLC-SURV-P01-001", "score": 0.5135164260864258, "sibling_score": 0.5135164260864258, "answer_score": null, "sibling_qid": "MUM-2025-10-0508-Q003", "sibling_text": "load line as 2e", "sibling_family": "", "via": "sibling", "answer_title": "Load line survey preparation as Second Engineer: engine-room scope, machinery openings, tanks/vents, valves and overboard checks", "cross_family": false } ] }, { "qid": "MUM-2026-07-3751-Q011", "text": "Define Torsion Box, Centre of Floatation, Centre of Buoyancy (COB), and Reserve Buoyancy?", "family": "SOLAS", "subtopic": "Double Bottom / Torsion Box", "tid": "MUM-2026-07-3751", "tray": "new", "candidates": [ { "answer_id": "TPC-FWA-008", "score": 0.5973817706108093, "sibling_score": 0.5973817706108093, "answer_score": 0.4884610533714294, "sibling_qid": "MUM-2023-08-0120-Q003", "sibling_text": "centre of floatation", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Centre of flotation", "cross_family": false }, { "answer_id": "LCF-LCB-001", "score": 0.5765268206596375, "sibling_score": 0.5765268206596375, "answer_score": null, "sibling_qid": "MUM-2026-05-3252-Q006", "sibling_text": "centre of flotation and centre of buoyancy", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "What is the LCF (centre of flotation), where is it, and why does it matter?", "cross_family": true }, { "answer_id": "DBTB-A-004", "score": 0.5686351656913757, "sibling_score": 0.5686351656913757, "answer_score": null, "sibling_qid": "MUM-2026-05-3215-Q001", "sibling_text": "torsion box in container location connection to collision bulkhead", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Torsion box: construction and arrangement in a container ship", "cross_family": false } ] }, { "qid": "MUM-2026-07-3753-Q001", "text": "Type of engine", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-07-3753", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.7996186017990112, "sibling_score": 0.7996186017990112, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.7920165657997131, "sibling_score": 0.7920165657997131, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-001", "score": 0.45196284651756286, "sibling_score": null, "answer_score": 0.45196284651756286, "sibling_qid": "", "sibling_text": "1 turbocharger type main engine vs generator engine compressor is centrifugal in both cases only the turbine type differs large slow speed main engine axial flow turbine single stage constant pressure system", "sibling_family": "", "via": "answer_title", "answer_title": "1. Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "MUM-2026-07-3753-Q002", "text": "Fuel oil for ME (Main Engine) full Bilge/sludge discharge preparations ?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Injection System", "tid": "MUM-2026-07-3753", "tray": "review", "candidates": [ { "answer_id": "OILRES-DISCH-TOPIC467-FINAL-002", "score": 0.6696799993515015, "sibling_score": 0.6696799993515015, "answer_score": 0.5456291377544403, "sibling_qid": "KOL-2019-12-0363-Q004", "sibling_text": "waste oil residue generated onboard through all the operation how will you dispose it off doesn t wanna listen incineration in all explanation i said sludge discharge connection for once he became happy and den again disappointed after i started with d procedure", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Transferring, disposing and discharging oil residue (sludge) — procedure and MARPOL requirement", "cross_family": true }, { "answer_id": "CATF-438-002", "score": 0.6321608424186707, "sibling_score": 0.6321608424186707, "answer_score": null, "sibling_qid": "KOL-2020-02-1518-Q005", "sibling_text": "fuel oil specs what is catfines how you remove it what they do in me", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How are cat fines removed or reduced onboard before the fuel is used?", "cross_family": false }, { "answer_id": "FQCC-583-B-011", "score": 0.6255577206611633, "sibling_score": 0.6255577206611633, "answer_score": null, "sibling_qid": "KOL-2020-01-1515-Q003", "sibling_text": "fuel oil additive name 4 condition monitoring of main engine as a 2nd engineer what will u do", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel oil additives — name four, what they do, and what the regulation allows", "cross_family": false } ] }, { "qid": "MUM-2026-07-3753-Q003", "text": "If a bearing has not changed position, what parameters do you check?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Bearing Clearance", "tid": "MUM-2026-07-3753", "tray": "new", "candidates": [ { "answer_id": "MN-BRG-C-002", "score": 0.5819366574287415, "sibling_score": 0.5819366574287415, "answer_score": null, "sibling_qid": "KOL-2019-08-3268-Q003", "sibling_text": "bearing bedding how to check", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bedding, contact check and fitting of shells", "cross_family": false }, { "answer_id": "BCL-592-004", "score": 0.567710280418396, "sibling_score": 0.567710280418396, "answer_score": null, "sibling_qid": "KOC-2022-07-0966-Q015", "sibling_text": "bearing clearances how often checked", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How often are bearing clearances checked?", "cross_family": false }, { "answer_id": "WMAT-170-006", "score": 0.5637337565422058, "sibling_score": 0.5637337565422058, "answer_score": null, "sibling_qid": "KOL-2018-03-3126-Q003", "sibling_text": "how surveyor check bonding of bearing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "White-metal bonding, bond-failure checks and reusable-bearing inspection", "cross_family": false } ] }, { "qid": "MUM-2026-07-3753-Q005", "text": "Why is there a designated lube oil sampling point?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "LO Cooler", "tid": "MUM-2026-07-3753", "tray": "new", "candidates": [ { "answer_id": "LO-TEST-P01-001", "score": 0.5903200507164001, "sibling_score": 0.5903200507164001, "answer_score": null, "sibling_qid": "CHE-2026-05-0556-Q001", "sibling_text": "1 lub oil test onboard why taking while running", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Onboard lube-oil tests and the viscosity test", "cross_family": false }, { "answer_id": "LO-TEST-P01-002", "score": 0.5873205661773682, "sibling_score": 0.5873205661773682, "answer_score": 0.464145702123642, "sibling_qid": "KOL-2017-03-3044-Q002", "sibling_text": "2 sampling point of l o for various machineries and sample taking frequency", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Taking the sample: where, how and how often", "cross_family": false }, { "answer_id": "OIL-FUEL-TEST-001", "score": 0.5670953392982483, "sibling_score": 0.5670953392982483, "answer_score": 0.45948330163955686, "sibling_qid": "MUM-2026-06-3536-Q005", "sibling_text": "lub oil tests onboard", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What lube-oil tests are carried out onboard ship?", "cross_family": false } ] }, { "qid": "MUM-2026-07-3754-Q001", "text": "General / Function Specific", "family": "IMO Structure & Conventions", "subtopic": "IMO / Committees / Codes", "tid": "MUM-2026-07-3754", "tray": "review", "candidates": [ { "answer_id": "IMO-CODES-P03-002", "score": 0.6585970520973206, "sibling_score": 0.6585970520973206, "answer_score": null, "sibling_qid": "KOC-2026-04-0892-Q002", "sibling_text": "function name", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": false }, { "answer_id": "IMO-CC-P01-003", "score": 0.6115713119506836, "sibling_score": 0.6115713119506836, "answer_score": null, "sibling_qid": "KOC-2026-03-0885-Q006", "sibling_text": "msc functions", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Name the IMO Committees and Sub-Committees (MSC, MEPC, FAL …) and state their functions.", "cross_family": false }, { "answer_id": "SEEMP-123-B-001", "score": 0.6010453104972839, "sibling_score": 0.6010453104972839, "answer_score": null, "sibling_qid": "KOC-2026-03-0880-Q002", "sibling_text": "function 3 contents", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SEEMP Part III — the ship's operational carbon-intensity (CII) plan", "cross_family": false } ] }, { "qid": "MUM-2026-07-3754-Q002", "text": "Explain the complete procedure for firing a boiler from cold condition?", "family": "Boilers - Operations & Firing", "subtopic": "Boiler Operations", "tid": "MUM-2026-07-3754", "tray": "review", "candidates": [ { "answer_id": "BURNER-TYPE-004", "score": 0.7696447372436523, "sibling_score": 0.7696447372436523, "answer_score": null, "sibling_qid": "KOL-2018-11-3198-Q004", "sibling_text": "what type of boiler roof fired water tube boiler procedure to fire from cold start 4 after drydocks checks when filling in water", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Identifying a roof-fired water-tube boiler", "cross_family": false }, { "answer_id": "BLR-OPS-001", "score": 0.7485873103141785, "sibling_score": 0.7485873103141785, "answer_score": 0.6070638358592987, "sibling_qid": "NOI-2026-09-0013-Q010", "sibling_text": "cold firing of boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Explain the procedure for raising steam in an auxiliary boiler from cold.", "cross_family": false }, { "answer_id": "ACC-603-001", "score": 0.7422856688499451, "sibling_score": 0.7422856688499451, "answer_score": null, "sibling_qid": "KOL-2017-10-1329-Q003", "sibling_text": "boiler automatic combustion start procedure step by step", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "The automatic combustion control system — how it works, the start sequence, and the emergency arrangement", "cross_family": false } ] }, { "qid": "MUM-2026-07-3754-Q003", "text": "What preparations one day in advance should be taken during sludge transfer and bilge transfer?", "family": "MARPOL - Annex I (Oil)", "subtopic": "Oil Residue Discharge", "tid": "MUM-2026-07-3754", "tray": "new", "candidates": [ { "answer_id": "OILRES-DISCH-TOPIC467-FINAL-002", "score": 0.5747678875923157, "sibling_score": 0.5747678875923157, "answer_score": 0.3980649173259735, "sibling_qid": "KOL-2021-08-3441-Q006", "sibling_text": "sludge transfer procedure", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Transferring, disposing and discharging oil residue (sludge) — procedure and MARPOL requirement", "cross_family": false }, { "answer_id": "BWMS-C-005", "score": 0.504019021987915, "sibling_score": 0.504019021987915, "answer_score": null, "sibling_qid": "KOL-2017-09-0116-Q002", "sibling_text": "ballast water management equipment and it s maintenance 2 sewage treatment plant checks maintenance and bod chlorine tablets addition sludge content check", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Maintenance, operational checks, installation factors & the engineer's role", "cross_family": true }, { "answer_id": "DUS-P1-01", "score": 0.5036541223526001, "sibling_score": 0.5036541223526001, "answer_score": null, "sibling_qid": "KOL-2019-04-3232-Q006", "sibling_text": "drydock 2 days prior check", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Drydock preparation as 2E — full workflow from office confirmation to entry", "cross_family": true } ] }, { "qid": "MUM-2026-07-3754-Q004", "text": "What routine checks should be carried out on a running DG (Diesel Generator) to instruct a TME (Trainee Marine Engineer)?", "family": "2-Stroke - Operations & Casualty", "subtopic": "ER Round", "tid": "MUM-2026-07-3754", "tray": "review", "candidates": [ { "answer_id": "ALT-GEN-P03-001", "score": 0.6855803728103638, "sibling_score": 0.6855803728103638, "answer_score": null, "sibling_qid": "KOL-2023-07-3623-Q004", "sibling_text": "checks to do on aux engine just after taking oil how to start the generator what parameters you will check he wanted to listen that we will check the voltage", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Alternator/generator working principle and onboard electricity generation", "cross_family": true }, { "answer_id": "RWX-CHK-001", "score": 0.6768600940704346, "sibling_score": 0.6768600940704346, "answer_score": null, "sibling_qid": "MUM-2026-06-3370-Q003", "sibling_text": "checks on main engine and auxiliary engine after bad weather and cross questions", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Engine-room and machinery checks before and after rough weather", "cross_family": false }, { "answer_id": "ELEC-SURV-002", "score": 0.6383349895477295, "sibling_score": 0.6383349895477295, "answer_score": null, "sibling_qid": "CHE-2026-05-0573-Q006", "sibling_text": "when taking engine room rounds what all are the things you will check", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Survey checks & engine-room electrical inspection", "cross_family": true } ] }, { "qid": "MUM-2026-07-3754-Q005", "text": "Why are turbocharger bearings replaced after approximately 10,000 running hours even if they appear to be in good condition? (Reason for scheduled replacement of turbocharger bearings)?", "family": "Turbocharger", "subtopic": "TC Bearing", "tid": "MUM-2026-07-3754", "tray": "review", "candidates": [ { "answer_id": "TC-OVHL-002", "score": 0.7313741445541382, "sibling_score": 0.7313741445541382, "answer_score": null, "sibling_qid": "KOL-2025-03-3757-Q001", "sibling_text": "ae turbocharger overhauling balancing how to change bearing t c specifications", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Auxiliary-engine turbocharger overhaul and checks", "cross_family": false }, { "answer_id": "TURBO-CS-P03-008", "score": 0.7241942286491394, "sibling_score": 0.7241942286491394, "answer_score": 0.5702031791210175, "sibling_qid": "KOL-2022-07-3554-Q002", "sibling_text": "types of turbocharger types of bearing bearing damaged how you will proceed", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharger bearings: types, lubrication, damage and action", "cross_family": false }, { "answer_id": "TC-OVHL-001", "score": 0.7172300219535828, "sibling_score": 0.7172300219535828, "answer_score": null, "sibling_qid": "MUM-2023-01-1040-Q016", "sibling_text": "turbocharger overhaul in place checks on turbine shaft", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Main-engine turbocharger overhaul — procedure and post-overhaul checks", "cross_family": false } ] }, { "qid": "MUM-2026-07-3755-Q001", "text": "Type of ship ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-07-3755", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.837036669254303, "sibling_score": 0.837036669254303, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8018087148666382, "sibling_score": 0.8018087148666382, "answer_score": 0.5473707109689713, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8005447387695312, "sibling_score": 0.8005447387695312, "answer_score": 0.5217237085103988, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2026-07-3755-Q002", "text": "How AC unloader works ?", "family": "Refrigeration & AC", "subtopic": "Capacity Control / Unloader", "tid": "MUM-2026-07-3755", "tray": "review", "candidates": [ { "answer_id": "CAP-CTRL-002", "score": 0.7347712516784668, "sibling_score": 0.7347712516784668, "answer_score": 0.32612649351358414, "sibling_qid": "KOC-2024-02-2042-Q006", "sibling_text": "ac unloader function", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "CG-002 · How the cylinder-unloader mechanism works", "cross_family": false }, { "answer_id": "CAP-CTRL-004", "score": 0.5895757675170898, "sibling_score": 0.5895757675170898, "answer_score": 0.29564799964427946, "sibling_qid": "MUM-2026-04-2666-Q009", "sibling_text": "how unloader working in ac and if doesn t work what will do", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "CG-004 · Actions when the capacity control / unloader is not working", "cross_family": false }, { "answer_id": "UNL-330-001", "score": 0.5673183798789978, "sibling_score": 0.5673183798789978, "answer_score": 0.2981300264596939, "sibling_qid": "KOL-2021-10-3465-Q003", "sibling_text": "function of unloader", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "What is the function of the main air compressor unloader?", "cross_family": true } ] }, { "qid": "MUM-2026-07-3755-Q007", "text": "Hole in engine room above water level ?", "family": "2-Stroke - Operations & Casualty", "subtopic": "ER Round", "tid": "MUM-2026-07-3755", "tray": "review", "candidates": [ { "answer_id": "CAS-ESTOP-001", "score": 0.6657793521881104, "sibling_score": 0.6657793521881104, "answer_score": 0.48993446230888366, "sibling_qid": "MUM-2026-07-3731-Q011", "sibling_text": "there is a hole in engine room side and water coming what aa a second engineer you will do", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Engine-room flooding / rapidly rising bilges — immediate action as 2/E", "cross_family": true }, { "answer_id": "PHL-001", "score": 0.6080788373947144, "sibling_score": 0.6080788373947144, "answer_score": 0.47107318639755247, "sibling_qid": "MUM-2026-03-2639-Q001", "sibling_text": "there is hole in bilge line how will you find", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "There is a hole in a line — bilge suction main, sea-water line, starting-air line or steam line: your action as 2/E, and how you find the exact location", "cross_family": true }, { "answer_id": "PUMPRM-B-002", "score": 0.5939896702766418, "sibling_score": 0.5939896702766418, "answer_score": null, "sibling_qid": "MUM-2026-01-0718-Q004", "sibling_text": "sealing between engine room and cargo pump room", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Pump-room regulatory and construction requirements", "cross_family": false } ] }, { "qid": "MUM-2026-07-3756-Q001", "text": "What type of vessel have you sailed on?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-07-3756", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.7493262887001038, "sibling_score": 0.7493262887001038, "answer_score": null, "sibling_qid": "CHE-2026-02-0481-Q001", "sibling_text": "type of vessels sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7205736637115479, "sibling_score": 0.7205736637115479, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7196500897407532, "sibling_score": 0.7196500897407532, "answer_score": null, "sibling_qid": "CHE-2026-03-0255-Q001", "sibling_text": "type of vessel and engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "MUM-2026-07-3756-Q002", "text": "IGG (Inert Gas Generator) alarms and trips?", "family": "Cargo Ops - Tankers", "subtopic": "IG Alarms / Trips", "tid": "MUM-2026-07-3756", "tray": "review", "candidates": [ { "answer_id": "IGAT-583-003", "score": 0.7296440005302429, "sibling_score": 0.7296440005302429, "answer_score": 0.5349250614643096, "sibling_qid": "MUM-2022-11-0069-Q006", "sibling_text": "igg alarm and trip at what o2 alarm and trip", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What are the set values for the IG system alarms and trips — IG line high, low and low-low pressure, oxygen content, PV valve and breaker pressures?", "cross_family": false }, { "answer_id": "IGAT-583-001", "score": 0.7155171036720276, "sibling_score": 0.7155171036720276, "answer_score": 0.569402739405632, "sibling_qid": "KOL-2026-01-2038-Q001", "sibling_text": "various alarms and trips of inert gas system", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "State all the alarms, trips and safety cut-outs provided on a tanker inert gas (IG) system.", "cross_family": false }, { "answer_id": "COT-P03-05", "score": 0.6661303639411926, "sibling_score": 0.6661303639411926, "answer_score": null, "sibling_qid": "MUM-2026-03-0838-Q003", "sibling_text": "alarms and trips to be tried out before discharging igg and framo", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Alarms, trips and interlocks of the IG and cargo-pumping systems tested before discharge — and how, safely", "cross_family": false } ] }, { "qid": "MUM-2026-07-3756-Q005", "text": "What is the validity of the paint used on a ship?", "family": "Drydock & Underwater Surveys", "subtopic": "Paint Scheme", "tid": "MUM-2026-07-3756", "tray": "new", "candidates": [ { "answer_id": "HULL-PAINT-002", "score": 0.6325655579566956, "sibling_score": 0.6325655579566956, "answer_score": 0.43817617297172545, "sibling_qid": "MUM-2026-08-3850-Q005", "sibling_text": "paint scheme what type of paint you were using on ship", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Types of hull coating, the paint scheme by section, and why each is used", "cross_family": false }, { "answer_id": "HULL-PAINT-001", "score": 0.6239155530929565, "sibling_score": 0.6239155530929565, "answer_score": 0.4066567376255989, "sibling_qid": "KOL-2021-08-3452-Q002", "sibling_text": "hull preparation painting type of paint note don t say cleaning by abrasive blasting he said now a days it banned port authority will catch you", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Preparing the hull surface before painting in dry dock — cleanliness standard and methods", "cross_family": false }, { "answer_id": "HULL-PAINT-005", "score": 0.611448347568512, "sibling_score": 0.611448347568512, "answer_score": null, "sibling_qid": "MUM-2025-03-2273-Q018", "sibling_text": "paint scheme types of paint anti corrosive anti fouling material of anti corrosive paint", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Anti-fouling and silicone (foul-release) coatings, the AFS Convention, and current developments", "cross_family": false } ] }, { "qid": "MUM-2026-07-3756-Q007", "text": "What is Avalanche breakdown?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Avalanche Breakdown", "tid": "MUM-2026-07-3756", "tray": "review", "candidates": [ { "answer_id": "EPC-P02-04", "score": 0.755214512348175, "sibling_score": 0.755214512348175, "answer_score": 0.4220035314559936, "sibling_qid": "MUM-2026-06-3487-Q009", "sibling_text": "avalanche breakdown explain", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is avalanche breakdown, how does it differ from zener breakdown, and in which diodes does each occur?", "cross_family": false }, { "answer_id": "TCS-059-P04-024", "score": 0.32254533767700194, "sibling_score": null, "answer_score": 0.32254533767700194, "sibling_qid": "", "sibling_text": "breakdown contributors not causes contributors underlying conditions that allow a breakdown versus the final failure event the examiner calls the cause neglected maintenance missed washing fouling", "sibling_family": "", "via": "answer_title", "answer_title": "Breakdown contributors (not causes)", "cross_family": false }, { "answer_id": "PRING-B-002", "score": 0.2973816186189651, "sibling_score": null, "answer_score": 0.2973816186189651, "sibling_qid": "", "sibling_text": "breakage seizure blow past failure symptoms breakage is usually the end of a chain that starts with lost sealing not a primary event classic chain ring sticks carbon lacquer blow past oil film burns micro seizure ring loads up and cracks", "sibling_family": "", "via": "answer_title", "answer_title": "Breakage, seizure, blow-past & failure symptoms", "cross_family": false } ] }, { "qid": "MUM-2026-07-3756-Q010", "text": "PLC working and what is its use onboard?", "family": "Automation & Controls", "subtopic": "PLC", "tid": "MUM-2026-07-3756", "tray": "review", "candidates": [ { "answer_id": "AUC-PLC-02", "score": 0.707639217376709, "sibling_score": 0.707639217376709, "answer_score": 0.4281031161546707, "sibling_qid": "MUM-2026-02-1945-Q004", "sibling_text": "plc working", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "PLC architecture, modules and the scan cycle", "cross_family": false }, { "answer_id": "EPC-P03-001", "score": 0.6057529449462891, "sibling_score": 0.6057529449462891, "answer_score": 0.5318966746330261, "sibling_qid": "KOC-2025-11-1622-Q010", "sibling_text": "plc where plcs are used what is the main advantage of using a plc", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a PLC? Where is it used onboard, what are its advantages, and how does it differ from a conventional relay control panel?", "cross_family": true }, { "answer_id": "AUC-PLC-04", "score": 0.440925857424736, "sibling_score": null, "answer_score": 0.440925857424736, "sibling_qid": "", "sibling_text": "shipboard plc applications and the hmi gui layer shipboard plc applications pms boiler burner management cargo control on tankers tank gauging fuel oil purifier sequence refrigeration hvac ballast water treatment egcs scrubber chilled water sewage ows gangway main engine safety and remote control is often a maker integrated system kongsberg autochief man sacosone wingd wecs may be plc based or pur", "sibling_family": "", "via": "answer_title", "answer_title": "Shipboard PLC applications and the HMI/GUI layer", "cross_family": false } ] }, { "qid": "MUM-2026-07-3756-Q011", "text": "Material of fuse?", "family": "Electrical - Protection & Relays", "subtopic": "Fuse / HRC", "tid": "MUM-2026-07-3756", "tray": "review", "candidates": [ { "answer_id": "FUSE-HRC-001", "score": 0.682564914226532, "sibling_score": 0.682564914226532, "answer_score": 0.4392715275287628, "sibling_qid": "MUM-2026-07-3778-Q001", "sibling_text": "fuse", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "What a fuse is, where and why it is fitted", "cross_family": false }, { "answer_id": "FUSE-HRC-005", "score": 0.6809371113777161, "sibling_score": 0.6809371113777161, "answer_score": null, "sibling_qid": "KOL-2025-08-2841-Q002", "sibling_text": "hrc fuse material how different from normal fuse", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Fuse vs other protective devices (relay, breaker, contactor, thermistor); and HRC vs HBC", "cross_family": false }, { "answer_id": "FUSE-HRC-004", "score": 0.6750410199165344, "sibling_score": 0.6750410199165344, "answer_score": 0.5145496428012848, "sibling_qid": "KOC-2026-05-2134-Q010", "sibling_text": "hrc fuses", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "HRC fuse – construction, operation, materials, identification", "cross_family": false } ] }, { "qid": "MUM-2026-07-3757-Q002", "text": "SCR (Selective Catalytic Reduction) and required documents for SCR?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "EGCS / Scrubber", "tid": "MUM-2026-07-3757", "tray": "review", "candidates": [ { "answer_id": "AV6-P03-02", "score": 0.6976504921913147, "sibling_score": 0.6976504921913147, "answer_score": 0.48547279238700863, "sibling_qid": "KOC-2025-03-0931-Q008", "sibling_text": "scr selective reduction", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SCR for marine NOx control — meaning, working principle, chemistry and system components", "cross_family": false }, { "answer_id": "AV6-P03-03", "score": 0.6351302266120911, "sibling_score": 0.6351302266120911, "answer_score": 0.4684163689613342, "sibling_qid": "MUM-2025-12-0632-Q008", "sibling_text": "scr what documents", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SCR operation, urea/ammonia dosing and ammonia slip — 2/E responsibilities", "cross_family": false }, { "answer_id": "AV6-P03-04", "score": 0.6101239323616028, "sibling_score": 0.6101239323616028, "answer_score": 0.4251567542552948, "sibling_qid": "KOL-2025-11-2023-Q003", "sibling_text": "secondary nox em dreduction methods and scr what is lp and hp scr", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "HP SCR versus LP SCR — pre-turbine and post-turbine arrangements", "cross_family": false } ] }, { "qid": "MUM-2026-07-3758-Q001", "text": "Status of exams Type of engine", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-07-3758", "tray": "new", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.6362480521202087, "sibling_score": 0.6362480521202087, "answer_score": null, "sibling_qid": "CHE-2026-01-0101-Q001", "sibling_text": "types of ship done and exam status", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.5930846333503723, "sibling_score": 0.5930846333503723, "answer_score": null, "sibling_qid": "MUM-2026-01-2903-Q002", "sibling_text": "type of engine sailed on written exam conditions", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P03-001", "score": 0.5731915831565857, "sibling_score": 0.5731915831565857, "answer_score": null, "sibling_qid": "KOL-2026-03-2048-Q001", "sibling_text": "type of engine done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false } ] }, { "qid": "MUM-2026-07-3758-Q002", "text": "Crosshead clearance ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Crosshead Bearing", "tid": "MUM-2026-07-3758", "tray": "review", "candidates": [ { "answer_id": "XHD-BRG-C-003", "score": 0.7971664071083069, "sibling_score": 0.7971664071083069, "answer_score": 0.49339714050292965, "sibling_qid": "CHE-2026-05-0632-Q015", "sibling_text": "crosshead clearance", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "C. Crosshead and guide-shoe clearances: how many, how measured, piston position and why", "cross_family": false }, { "answer_id": "XHEAD-303-005", "score": 0.7949675917625427, "sibling_score": 0.7949675917625427, "answer_score": 0.5475845128297806, "sibling_qid": "KOL-2016-10-1245-Q002", "sibling_text": "cross head all clearance", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead guide and shoe clearances: how and where taken, limits", "cross_family": false }, { "answer_id": "CXH-BRG-FINAL-1-006", "score": 0.774090051651001, "sibling_score": 0.774090051651001, "answer_score": 0.5420276910066605, "sibling_qid": "MUM-2022-12-1039-Q005", "sibling_text": "crosshead clearance how we take", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead & guide-shoe clearances: how, where, how much, piston position & why", "cross_family": false } ] }, { "qid": "MUM-2026-07-3758-Q003", "text": "Working of CCU (Cylinder Control Unit) ?", "family": "Automation & Controls", "subtopic": "Controller", "tid": "MUM-2026-07-3758", "tray": "new", "candidates": [ { "answer_id": "CTV-BF01-003", "score": 0.5839692950248718, "sibling_score": 0.5839692950248718, "answer_score": null, "sibling_qid": "KOC-2022-09-1196-Q006", "sibling_text": "hydraulic valve opening and closing how ccr light signal coming", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "How does a hydraulically operated valve open and close, and how does the open or shut signal reach the cargo control room (CCR)?", "cross_family": false }, { "answer_id": "MEB-MEC-P03-002", "score": 0.5748407244682312, "sibling_score": 0.5748407244682312, "answer_score": null, "sibling_qid": "KOL-2026-02-1830-Q001", "sibling_text": "function of ccu", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "ME camless control architecture — ECS, CCU, EICU, MPC", "cross_family": true }, { "answer_id": "EXHV-P01-001", "score": 0.5721895694732666, "sibling_score": 0.5721895694732666, "answer_score": null, "sibling_qid": "KOL-2026-05-0052-Q004", "sibling_text": "me engine fuction of ccu how exhaust valve is opening and closing", "sibling_family": "", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false } ] }, { "qid": "MUM-2026-07-3758-Q004", "text": "Rudder bearing type ?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "MUM-2026-07-3758", "tray": "review", "candidates": [ { "answer_id": "TRS-002", "score": 0.7377265095710754, "sibling_score": 0.7377265095710754, "answer_score": null, "sibling_qid": "KOC-2026-02-1103-Q008", "sibling_text": "how rudder stock and carrier bearing is attached told 2 half fitted bolts x does bearing turn with rudder i told yes then he told that there are 2 types one turn with rudder other dont turn with rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "PRE-TEN-001", "score": 0.7050310373306274, "sibling_score": 0.7050310373306274, "answer_score": null, "sibling_qid": "MUM-2026-09-3907-Q001", "sibling_text": "rudder carrier bearing replacement in port", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Pre-stressing and pre-tensioning in main-engine bolting", "cross_family": false }, { "answer_id": "SPR-STERN-006", "score": 0.6961041688919067, "sibling_score": 0.6961041688919067, "answer_score": null, "sibling_qid": "MUM-2026-05-3201-Q001", "sibling_text": "type of rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Propeller types & special propulsors", "cross_family": false } ] }, { "qid": "MUM-2026-07-3758-Q005", "text": "One anchor stuck ?", "family": "Auxiliary Equipment", "subtopic": "Anchor / Anchor Chain", "tid": "MUM-2026-07-3758", "tray": "review", "candidates": [ { "answer_id": "ANCH-CHN-A-006", "score": 0.7105641961097717, "sibling_score": 0.7105641961097717, "answer_score": 0.38443993777036667, "sibling_qid": "MUM-2026-07-3762-Q012", "sibling_text": "anchor chain stuck", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Holding, securing the cable for sea, and general checks", "cross_family": false }, { "answer_id": "ANCHR-B-002", "score": 0.6577371954917908, "sibling_score": 0.6577371954917908, "answer_score": null, "sibling_qid": "KOL-2020-10-0434-Q006", "sibling_text": "checks on anchor in dd", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Anchor & cable survey in dry dock — the systematic inspection", "cross_family": false }, { "answer_id": "ANCH-C-005", "score": 0.62553870677948, "sibling_score": 0.62553870677948, "answer_score": 0.42292596995830534, "sibling_qid": "KOC-2022-04-1784-Q002", "sibling_text": "anchor not heaving up reasons", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Anchor not heaving up — reasons & actions", "cross_family": false } ] }, { "qid": "MUM-2026-07-3758-Q006", "text": "Pintle clearance?", "family": "Shafting, Propeller & Rudder", "subtopic": "Stern Tube / Tail Shaft Bearings", "tid": "MUM-2026-07-3758", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.7552088499069214, "sibling_score": 0.7552088499069214, "answer_score": null, "sibling_qid": "NOI-2026-09-0024-Q001", "sibling_text": "pintle clearance", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "TB-BEAR-001", "score": 0.5618563294410706, "sibling_score": 0.5618563294410706, "answer_score": null, "sibling_qid": "MUM-2024-07-2765-Q005", "sibling_text": "thrust block arrangement how to check the clearance why is the clearance provided", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Thrust bearing clearance — measurement procedure & value", "cross_family": false }, { "answer_id": "PIST-CSI-B-003", "score": 0.5381797552108765, "sibling_score": 0.5381797552108765, "answer_score": null, "sibling_qid": "KOC-2025-09-1943-Q003", "sibling_text": "what are all the clearance will be taken in piston", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Inspecting, calibrating and gauging a removed piston", "cross_family": true } ] }, { "qid": "MUM-2026-07-3759-Q001", "text": "Types of ship and Engine ?", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "MUM-2026-07-3759", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.817551851272583, "sibling_score": 0.817551851272583, "answer_score": null, "sibling_qid": "MUM-2025-08-2357-Q001", "sibling_text": "type of ship type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.7894253134727478, "sibling_score": 0.7894253134727478, "answer_score": null, "sibling_qid": "MUM-2026-07-3668-Q004", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7475537061691284, "sibling_score": 0.7475537061691284, "answer_score": null, "sibling_qid": "KOL-2025-12-2031-Q002", "sibling_text": "type of ship and engine sailed engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "MUM-2026-07-3759-Q002", "text": "Why MC-C is compact ?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "MC-C vs MEB Engine", "tid": "MUM-2026-07-3759", "tray": "new", "candidates": [ { "answer_id": "MCC-MEB-P01-001", "score": 0.5527204871177673, "sibling_score": 0.5527204871177673, "answer_score": 0.4170983493328094, "sibling_qid": "MUM-2022-07-0017-Q016", "sibling_text": "in mc c what in particular it is done to make engine compact", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "MC-C (\"Compact\") engine — design and the main constructional differences from MC", "cross_family": false }, { "answer_id": "ENG-NOM-002", "score": 0.4809592068195343, "sibling_score": 0.4809592068195343, "answer_score": 0.35084064602851867, "sibling_qid": "KOL-2026-05-4093-Q003S2", "sibling_text": "what is compact in nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What does “Compact” (the trailing C) mean?", "cross_family": false }, { "answer_id": "EGTP-P02-005", "score": 0.4408069849014282, "sibling_score": 0.4408069849014282, "answer_score": 0.338954858481884, "sibling_qid": "MUM-2026-09-3978-Q001", "sibling_text": "mc mcc me b and me c difference", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "MC / MC-C / ME-C and Electronically Controlled Engines", "cross_family": false } ] }, { "qid": "MUM-2026-07-3759-Q004", "text": "Deaerating ?", "family": "Boilers - Construction & Components", "subtopic": "Deaerator", "tid": "MUM-2026-07-3759", "tray": "new", "candidates": [ { "answer_id": "AIR-REF-004", "score": 0.5402792692184448, "sibling_score": 0.5402792692184448, "answer_score": null, "sibling_qid": "MUM-2024-07-1085-Q008", "sibling_text": "how you remove air", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "4. Detecting and purging air from a refrigeration system", "cross_family": true }, { "answer_id": "COT-P02-12", "score": 0.5110533237457275, "sibling_score": 0.5110533237457275, "answer_score": null, "sibling_qid": "KOC-2026-09-2176-Q001", "sibling_text": "purging and gas freeing", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Explain and distinguish cargo-tank inerting, purging, gas freeing and ventilation, including dilution/displacement methods, atmosphere targets and cargo-pump precautions.", "cross_family": true }, { "answer_id": "AEDEC-291-003", "score": 0.49818867444992065, "sibling_score": 0.49818867444992065, "answer_score": null, "sibling_qid": "KOL-2020-01-3309-Q001", "sibling_text": "ae decarb checks", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "3. Pre-start checks after decarb / recommissioning", "cross_family": true } ] }, { "qid": "MUM-2026-07-3760-Q002", "text": "How do you remedy this condition?", "family": "Refrigeration & AC", "subtopic": "Air in System", "tid": "MUM-2026-07-3760", "tray": "new", "candidates": [ { "answer_id": "REEF-CHG-006", "score": 0.5346400141716003, "sibling_score": 0.5346400141716003, "answer_score": null, "sibling_qid": "KOL-2019-07-3255-Q005", "sibling_text": "refer replenishing too much problems and remedies", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "06Problems from excessive replenishment or overcharging", "cross_family": false }, { "answer_id": "SGB-212-001", "score": 0.5260642766952515, "sibling_score": 0.5260642766952515, "answer_score": null, "sibling_qid": "KOL-2022-10-1926-Q010", "sibling_text": "and how to rectify", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Dezincification of brass", "cross_family": true }, { "answer_id": "BLR-TUBE-P01-002", "score": 0.4909941256046295, "sibling_score": 0.4909941256046295, "answer_score": null, "sibling_qid": "MUM-2026-03-2628-Q003", "sibling_text": "how to repair", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "03. Types, functions and arrangement of boiler tubes", "cross_family": true } ] }, { "qid": "MUM-2026-07-3760-Q003", "text": "Explain the columns and structure used in an onboard Risk Matrix. ", "family": "Risk & Safety Management", "subtopic": "Risk Assessment / Management", "tid": "MUM-2026-07-3760", "tray": "review", "candidates": [ { "answer_id": "RISK-RA-D-001", "score": 0.6504297852516174, "sibling_score": 0.6504297852516174, "answer_score": 0.48362811803817746, "sibling_qid": "MUM-2026-02-2576-Q010", "sibling_text": "x and y axis of risk matrix", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "RA-MGMT-B-001", "score": 0.5748856663703918, "sibling_score": 0.5748856663703918, "answer_score": null, "sibling_qid": "MUM-2022-10-2708-Q020", "sibling_text": "risk assessment checklist all point in table", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "How is a shipboard risk assessment prepared and carried out?", "cross_family": false }, { "answer_id": "LVC-577-003", "score": 0.5610461831092834, "sibling_score": 0.5610461831092834, "answer_score": 0.4921688437461853, "sibling_qid": "KOC-2024-10-1872-Q006", "sibling_text": "risk assessment complete what is likelihood and consequences what risk matrix followed by ur company and when you would carry out job according to it and", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "Using likelihood and consequence in a risk matrix", "cross_family": false } ] }, { "qid": "MUM-2026-07-3760-Q004", "text": "How do you execute a complete Risk Assessment onboard for critical operations?", "family": "Risk & Safety Management", "subtopic": "Risk Assessment / Management", "tid": "MUM-2026-07-3760", "tray": "review", "candidates": [ { "answer_id": "RA-MGMT-A-001", "score": 0.6734883189201355, "sibling_score": 0.6734883189201355, "answer_score": 0.4427351176738739, "sibling_qid": "MUM-2017-01-2126-Q013", "sibling_text": "define risk and also prepare complete risk assessment", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "What is risk, what is hazard, and what is risk assessment?", "cross_family": false }, { "answer_id": "LVC-577-003", "score": 0.6503236889839172, "sibling_score": 0.6503236889839172, "answer_score": null, "sibling_qid": "KOC-2024-10-1872-Q006", "sibling_text": "risk assessment complete what is likelihood and consequences what risk matrix followed by ur company and when you would carry out job according to it and", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "Using likelihood and consequence in a risk matrix", "cross_family": false }, { "answer_id": "RA-MGMT-B-001", "score": 0.6414477229118347, "sibling_score": 0.6414477229118347, "answer_score": 0.4259547621011734, "sibling_qid": "KOC-2021-07-0015-Q012", "sibling_text": "risk assessment full start to end of d job", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "How is a shipboard risk assessment prepared and carried out?", "cross_family": false } ] }, { "qid": "MUM-2026-07-3760-Q006", "text": "If air inadvertently enters the compressor during oil charging, how would you detect it and subsequently purge it?", "family": "Refrigeration & AC", "subtopic": "Reefer Charging", "tid": "MUM-2026-07-3760", "tray": "review", "candidates": [ { "answer_id": "AIR-REF-004", "score": 0.6684675812721252, "sibling_score": 0.6684675812721252, "answer_score": 0.5551450431346893, "sibling_qid": "KOC-2021-08-1765-Q005", "sibling_text": "detect and remove air in the system", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "4. Detecting and purging air from a refrigeration system", "cross_family": false }, { "answer_id": "AIR-REF-001", "score": 0.6608849167823792, "sibling_score": 0.6608849167823792, "answer_score": null, "sibling_qid": "KOC-2021-12-1771-Q005", "sibling_text": "how do you detect air in refer system discharge pressure gauge of the compressor will show corresponding condensing temperature of that refrigerant compare it to condenser thermometer if temperature in the discharge pressure gauge reading is more then air in the system", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "1. Indications that air is present in a refrigeration system", "cross_family": false }, { "answer_id": "REEF-COMP-004", "score": 0.6562677025794983, "sibling_score": 0.6562677025794983, "answer_score": 0.544527906179428, "sibling_qid": "KOL-2026-09-4301-Q002", "sibling_text": "how to charge oil in refer compressor", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Charging, replenishing and draining compressor lube oil — including with no charging pump", "cross_family": false } ] }, { "qid": "MUM-2026-07-3760-Q007", "text": "Explain the technical nomenclature of a \"6304ZZ\" rolling element bearing ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "", "tid": "MUM-2026-07-3760", "tray": "review", "candidates": [ { "answer_id": "BRG-NOM-001", "score": 0.7473551630973816, "sibling_score": 0.7473551630973816, "answer_score": 0.4789129257202148, "sibling_qid": "KOL-2025-01-3736-Q004", "sibling_text": "6204zz bearing nomenclature what is 04 and zz what if rs inplace of zz", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bearing Numbers, Suffixes and What to State When Ordering", "cross_family": false }, { "answer_id": "BRG-NOM-002", "score": 0.43119285702705384, "sibling_score": null, "answer_score": 0.43119285702705384, "sibling_qid": "", "sibling_text": "ball roller radial and axial bearings choosing the type ball point contact lower load higher speed lower friction deep groove takes radial plus moderate axial roller line contact high radial load lower speed cylindrical nu is radial only taper takes combined loads", "sibling_family": "", "via": "answer_title", "answer_title": "Ball, Roller, Radial and Axial Bearings — Choosing the Type", "cross_family": false }, { "answer_id": "BRG-NOM-003", "score": 0.4068915396928787, "sibling_score": null, "answer_score": 0.4068915396928787, "sibling_qid": "", "sibling_text": "thin shell bi metal and tri metal bearings construction and why thin shell bi metal steel backing bearing lining e g aluminium tin or copper lead two functional layers tri metal steel back stronger interlayer lining thin soft overlay commonly plus a nickel barrier and tin flash described as up to 5 layers", "sibling_family": "", "via": "answer_title", "answer_title": "Thin-Shell, Bi-Metal and Tri-Metal Bearings — Construction and Why Thin-Shell", "cross_family": false } ] }, { "qid": "MUM-2026-07-3760-Q008", "text": "Differentiate between Temporary Hardness and Permanent Hardness in boiler feed water?", "family": "Boilers - Safety & Survey", "subtopic": "O2 Level / Hardness", "tid": "MUM-2026-07-3760", "tray": "review", "candidates": [ { "answer_id": "BWTEST-C-003", "score": 0.6982094645500183, "sibling_score": 0.6982094645500183, "answer_score": 0.5229313850402831, "sibling_qid": "KOL-2019-08-1476-Q003", "sibling_text": "boiler hardness and non hardness salts", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Hardness & salts — scale risk, temporary vs permanent, hard vs soft", "cross_family": false }, { "answer_id": "BWTEST-A-003", "score": 0.6512570977210999, "sibling_score": 0.6512570977210999, "answer_score": null, "sibling_qid": "KOC-2025-10-2079-Q005", "sibling_text": "hardness test done in boiler water sample", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "How should boiler-water samples be taken and checked before testing?", "cross_family": false }, { "answer_id": "BWTEST-C-001", "score": 0.638457715511322, "sibling_score": 0.638457715511322, "answer_score": null, "sibling_qid": "KOL-2018-07-1395-Q003", "sibling_text": "hardness non hardness alkaline and non alkaline salts", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "pH / acidity control — why pH is held, and what acidic or high-pH water means", "cross_family": false } ] }, { "qid": "MUM-2026-07-3760-Q009", "text": "Detail the operational procedure to change over a purifier from Heavy Fuel Oil (HFO) to Diesel Oil (DO)?", "family": "Purifier & Centrifuges", "subtopic": "", "tid": "MUM-2026-07-3760", "tray": "new", "candidates": [ { "answer_id": "PURIF-172-002", "score": 0.6476603150367737, "sibling_score": 0.6476603150367737, "answer_score": null, "sibling_qid": "MUM-2026-05-2999-Q002", "sibling_text": "what all to do if we want to use fuel oil purifier for diesel oil", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Gravity disc selection, new bunker & DO changeover", "cross_family": false }, { "answer_id": "PUR-BOWL-P03-FINAL-1-004", "score": 0.6191772818565369, "sibling_score": 0.6191772818565369, "answer_score": null, "sibling_qid": "MUM-2026-06-3514-Q010", "sibling_text": "purifier to clarifier changeover", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "4. Purifier versus Clarifier — Differences, Conversion and Batch Purification", "cross_family": false }, { "answer_id": "FHV-004", "score": 0.5971580743789673, "sibling_score": 0.5971580743789673, "answer_score": null, "sibling_qid": "KOL-2019-07-3264-Q005", "sibling_text": "change over procedure from hfo to lsmgo paying attention on high tbn to low tbn cylinder oil and related cross question", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "04. HFO / DO / LSMGO changeover and its effects", "cross_family": true } ] }, { "qid": "MUM-2026-07-3760-Q012", "text": "How do you identify a propagating piston crack during engine operation?", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "MUM-2026-07-3760", "tray": "review", "candidates": [ { "answer_id": "PST-CSI-BF-011", "score": 0.7283814549446106, "sibling_score": 0.7283814549446106, "answer_score": 0.5857460170984268, "sibling_qid": "MUM-2024-02-2224-Q003", "sibling_text": "how to check the crack on piston", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Detecting a crack in the piston crown, and the indications you would get", "cross_family": false }, { "answer_id": "PIST-CSI-C-001", "score": 0.719218909740448, "sibling_score": 0.719218909740448, "answer_score": null, "sibling_qid": "CHE-2026-03-0251-Q004", "sibling_text": "piston crown crack reason how to find with out removing", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston crown damage — pitting, burning, cracks and reconditioning", "cross_family": false }, { "answer_id": "PST-CSI-BF-012", "score": 0.681993305683136, "sibling_score": 0.681993305683136, "answer_score": 0.5085544764995574, "sibling_qid": "MUM-2026-04-2104-Q008S4", "sibling_text": "piston crown crack reason", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "What causes a piston crown to crack?", "cross_family": false } ] }, { "qid": "MUM-2026-07-3760-Q013", "text": "What causes the jacket water pressure of a main engine to fluctuate, or the jacket water temperature of a single cylinder unit to rapidly increase?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "High Exh Temp Alarm", "tid": "MUM-2026-07-3760", "tray": "review", "candidates": [ { "answer_id": "EXH-T-HI-001", "score": 0.6715999841690063, "sibling_score": 0.6715999841690063, "answer_score": null, "sibling_qid": "MUM-2024-07-2767-Q012", "sibling_text": "main engine all units exhaust temperature increased suddenly what r the reasons", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "All units exhaust temperature high — causes and actions", "cross_family": false }, { "answer_id": "PCD-P01-06", "score": 0.6710802912712097, "sibling_score": 0.6710802912712097, "answer_score": null, "sibling_qid": "MUM-2025-05-2294-Q004", "sibling_text": "jacket water pump pressure gauge fluctuating state reasons", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Centrifugal pump — reasons for performance drop, low efficiency, vibration, and still-poor-after-overhaul", "cross_family": true }, { "answer_id": "IND-CARD-006", "score": 0.6568059921264648, "sibling_score": 0.6568059921264648, "answer_score": null, "sibling_qid": "KOL-2025-07-1819-Q015", "sibling_text": "a e one unit peak pressure and exhaust temp high reason", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Interpreting Pmax, Pcomp and exhaust-temperature changes for timing and combustion", "cross_family": false } ] }, { "qid": "MUM-2026-07-3760-Q015", "text": " What are the specific indications and remedies for priming and foaming in an auxiliary boiler?", "family": "Boilers - Feed Water & Water Treatment", "subtopic": "", "tid": "MUM-2026-07-3760", "tray": "new", "candidates": [ { "answer_id": "BLR-BSP-001", "score": 0.5176903009414673, "sibling_score": 0.5176903009414673, "answer_score": null, "sibling_qid": "MUM-2025-08-2352-Q001", "sibling_text": "3e firing boiler and he finds boiler tripping off with too much panting boiler is cathing fire but it it putting off again as a 2e actions taken by you and rectifying of all the possible defects", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler panting (combustion pulsation): causes, symptoms, and your actions as 2/E", "cross_family": true }, { "answer_id": "STG-055-C-001", "score": 0.5158175826072693, "sibling_score": 0.5158175826072693, "answer_score": null, "sibling_qid": "KOL-2021-06-1593-Q004", "sibling_text": "safematic system cross question 5 boiler priming foaming swelling shrinkage 6 nox reduction techniques", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Safematic steering gear, redundancy and the single-failure criterion", "cross_family": true }, { "answer_id": "CPFE-583-007", "score": 0.5148013234138489, "sibling_score": 0.5148013234138489, "answer_score": null, "sibling_qid": "CHE-2026-03-0494-Q004", "sibling_text": "boiler feed pump not making pr why will post more questions if i remember internal po external ilamathivannan internal s s moorthy", "sibling_family": "Boilers - Feed Water & Water Treatment", "via": "sibling", "answer_title": "Pressure not building — and purging the hydraulic system", "cross_family": false } ] }, { "qid": "MUM-2026-07-3761-Q001", "text": "Auxiliary Engine & Deck Component Audits", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "LO Test / Analysis", "tid": "MUM-2026-07-3761", "tray": "new", "candidates": [ { "answer_id": "CRB-002", "score": 0.5925045609474182, "sibling_score": 0.5925045609474182, "answer_score": null, "sibling_qid": "NOI-2026-09-0013-Q007", "sibling_text": "a surveyor onboard what check he will do on auxiliary engine con rod bearing inspection", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What checks and tests are carried out on connecting rod bolts? Why NDT, why check elongation, what is the maximum limit, and which section tends to shear off?", "cross_family": false }, { "answer_id": "AEDEC-291-001", "score": 0.5817764401435852, "sibling_score": 0.5817764401435852, "answer_score": null, "sibling_qid": "KOC-2026-02-2003-Q013", "sibling_text": "any overhauls done on auxiliary engine", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "1. AE decarb / overhaul — preparation and full procedure", "cross_family": true }, { "answer_id": "AE-CSB-346-003", "score": 0.5789480209350586, "sibling_score": 0.5789480209350586, "answer_score": null, "sibling_qid": "KOC-2023-01-1806-Q004", "sibling_text": "auxiliary engine thrust bearing clearance check", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Checking / measuring auxiliary-engine thrust-bearing clearance (end float)", "cross_family": true } ] }, { "qid": "MUM-2026-07-3761-Q002", "text": "What is a Valve Early Closing (VEC) mechanism, and what is its purpose?", "family": "Fuel Oil System", "subtopic": "Service / Settling Tank", "tid": "MUM-2026-07-3761", "tray": "new", "candidates": [ { "answer_id": "QCV-001", "score": 0.5111018419265747, "sibling_score": 0.5111018419265747, "answer_score": null, "sibling_qid": "MUM-2026-05-3265-Q002", "sibling_text": "quick closing valve mechanism", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Quick closing valve — construction and what it is", "cross_family": true }, { "answer_id": "EXHV-P01-002", "score": 0.4672509431838989, "sibling_score": 0.4672509431838989, "answer_score": null, "sibling_qid": "KOL-2021-08-1615-Q001", "sibling_text": "exhaust vlv soft closing arrangements", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Air spring and soft closing", "cross_family": true }, { "answer_id": "EXHV-080-BF37-001", "score": 0.4650670289993286, "sibling_score": 0.4650670289993286, "answer_score": 0.41375189423561093, "sibling_qid": "KOL-2026-09-4305-Q001", "sibling_text": "variable exhaust valve closing", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "What is variable exhaust valve closing (VEC)? Components and advantages.", "cross_family": true } ] }, { "qid": "MUM-2026-07-3761-Q003", "text": "What causes a distinct knocking sound coming from the high-pressure pipe of an exhaust valve actuation system?", "family": "Refrigeration & AC", "subtopic": "HP / LP Trip", "tid": "MUM-2026-07-3761", "tray": "new", "candidates": [ { "answer_id": "EXHV-P03-003", "score": 0.6359833478927612, "sibling_score": 0.6359833478927612, "answer_score": 0.5603158056735992, "sibling_qid": "KOL-2022-09-4015-Q008", "sibling_text": "knocking sound from one unit exh valve reasons", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Knocking, cracking, seat failure, sticking, and a valve that will not open", "cross_family": true }, { "answer_id": "EXHV-080-BF37-005", "score": 0.6063332557678223, "sibling_score": 0.6063332557678223, "answer_score": 0.5068232893943786, "sibling_qid": "MUM-2022-04-2130-Q001", "sibling_text": "reasons for exhaust valve knocking", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "What are the reasons for exhaust valve leakage or knocking, and the indication while running?", "cross_family": true }, { "answer_id": "EGTP-P02-007", "score": 0.588721752166748, "sibling_score": 0.588721752166748, "answer_score": null, "sibling_qid": "MUM-2023-01-1040-Q008", "sibling_text": "knocking sound in engine but exhaust temperature normal", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "High Exhaust Temperature — One Unit vs All Units", "cross_family": true } ] }, { "qid": "MUM-2026-07-3761-Q006", "text": "Detail the main bearing survey procedure for a modern two-stroke crosshead engine?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Crosshead Bearing", "tid": "MUM-2026-07-3761", "tray": "review", "candidates": [ { "answer_id": "MAIN-BRG-A-001", "score": 0.7266923785209656, "sibling_score": 0.7266923785209656, "answer_score": 0.5340596199035644, "sibling_qid": "CHE-2026-08-3879-Q012", "sibling_text": "main engine main bearing survey procedure", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How is a main bearing surveyed, inspected or condition-monitored?", "cross_family": false }, { "answer_id": "XHD-BRG-B-004", "score": 0.699186384677887, "sibling_score": 0.699186384677887, "answer_score": null, "sibling_qid": "KOL-2019-10-1487-Q005", "sibling_text": "x head bearing survey and other bearing clearance taking procedure", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Measuring crosshead bearing and guide-shoe clearances", "cross_family": false }, { "answer_id": "BEB-B-002", "score": 0.6949346661567688, "sibling_score": 0.6949346661567688, "answer_score": null, "sibling_qid": "KOL-2024-03-3680-Q001", "sibling_text": "preparation for me bottom end bearing survey required tools how to take weight of xhd piston rod how to inspect top bearing shell after ovhl how to chk clearance", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bottom End Bearing — Clearance Measurement", "cross_family": false } ] }, { "qid": "MUM-2026-07-3761-Q008", "text": "What specific checks must be conducted on a cylinder liner when the vessel is operating exclusively on Ultra-Low Sulfur Fuel Oil (ULSFO)?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Cylinder Lubrication", "tid": "MUM-2026-07-3761", "tray": "new", "candidates": [ { "answer_id": "CYL-LINER-P03-007", "score": 0.5749146342277527, "sibling_score": 0.5749146342277527, "answer_score": 0.43968266546726226, "sibling_qid": "KOL-2021-03-1582-Q003", "sibling_text": "checks in liner during overhaul", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Cylinder liner checks at overhaul, decarb and under-piston inspection", "cross_family": true }, { "answer_id": "FQCC-583-A-005", "score": 0.5714802145957947, "sibling_score": 0.5714802145957947, "answer_score": null, "sibling_qid": "CHE-2026-05-0579-Q003", "sibling_text": "ae lo report what all things u will check and in fuel oil content check on which parameter u can find it", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "The bunker / fuel oil analysis report — what is checked and who says so", "cross_family": false }, { "answer_id": "CYL-LINER-P01-003", "score": 0.5506094694137573, "sibling_score": 0.5506094694137573, "answer_score": null, "sibling_qid": "KOL-2022-08-1923-Q001", "sibling_text": "u have removed liner what all checks u will carry out routine inspections wear rate in liner", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "From the readings: wear, wear rate, units and renewal limits", "cross_family": true } ] }, { "qid": "MUM-2026-07-3761-Q010", "text": "Explain the function and positioning of a Top Land Piston and a Controlled Pressure Relief (CPR) ring?", "family": "2-Stroke - Components (Other)", "subtopic": "Piston Rings", "tid": "MUM-2026-07-3761", "tray": "new", "candidates": [ { "answer_id": "PST-CSI-BF-006", "score": 0.5826106071472168, "sibling_score": 0.5826106071472168, "answer_score": 0.4576205909252167, "sibling_qid": "MUM-2025-07-1145-Q003", "sibling_text": "what is top land of piston", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "The top land of a piston, and the benefits of a high top land", "cross_family": false }, { "answer_id": "PRING-CLR-A-001", "score": 0.5483213663101196, "sibling_score": 0.5483213663101196, "answer_score": 0.45601180791854856, "sibling_qid": "KOL-2024-12-1793-Q002", "sibling_text": "cpr piston rings with cl and pop type adv of pop details", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston-ring types — CPR, POP, the PC ring, and the pinned gap", "cross_family": false }, { "answer_id": "PIST-CSI-A-001", "score": 0.5339809656143188, "sibling_score": 0.5339809656143188, "answer_score": null, "sibling_qid": "KOL-2025-10-2016-Q005", "sibling_text": "piston top land advantage of high top land", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Oros combustion chamber, high top land and modern 2-stroke piston development", "cross_family": false } ] }, { "qid": "MUM-2026-07-3761-Q011", "text": "Does a pulse lubrication system spray cylinder oil during the upward stroke or downward stroke of the piston? Explain why.", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Cylinder Lubrication", "tid": "MUM-2026-07-3761", "tray": "review", "candidates": [ { "answer_id": "ALPHA-LUB-B-002", "score": 0.67950040102005, "sibling_score": 0.67950040102005, "answer_score": null, "sibling_qid": "CHE-2026-04-0506-Q007", "sibling_text": "alpha pulse cylinder lubrication", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Alpha, Pulse, intelligent and adaptive lubrication — and latest developments", "cross_family": false }, { "answer_id": "ALPHA-LUB-B-004", "score": 0.6656176447868347, "sibling_score": 0.6656176447868347, "answer_score": null, "sibling_qid": "KOL-2019-11-1499-Q003", "sibling_text": "cylinder lubrication alpha when injection taking place timing quantum of lubrication couldn t answer", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Alpha lubricator — feed-rate, timing, quantity and SLOC/SCOC calculation", "cross_family": false }, { "answer_id": "CYL-LUB-A-001", "score": 0.6609858274459839, "sibling_score": 0.6609858274459839, "answer_score": null, "sibling_qid": "KOL-2026-03-2043-Q002", "sibling_text": "sip in cylinder lubrication", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Cylinder lubrication — how it is carried out and its purpose", "cross_family": false } ] }, { "qid": "MUM-2026-07-3762-Q003", "text": "air seal lubrication ?", "family": "General Marine Engineering", "subtopic": "Shafting / Propeller / CPP", "tid": "MUM-2026-07-3762", "tray": "review", "candidates": [ { "answer_id": "EEXI-002", "score": 0.6819233298301697, "sibling_score": 0.6819233298301697, "answer_score": null, "sibling_qid": "MUM-2026-06-3506-Q005", "sibling_text": "air lubrication", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "How can the EEXI of a ship be improved or attained, and what design technologies improve energy efficiency?", "cross_family": false }, { "answer_id": "RES-PROP-P01-002", "score": 0.6390796899795532, "sibling_score": 0.6390796899795532, "answer_score": null, "sibling_qid": "MUM-2024-04-0172-Q008", "sibling_text": "air hull lubrication", "sibling_family": "", "via": "sibling", "answer_title": "Resistance types and methods of reducing them", "cross_family": false }, { "answer_id": "STS-P02-002", "score": 0.6148836612701416, "sibling_score": 0.6148836612701416, "answer_score": null, "sibling_qid": "KOC-2026-05-0029-Q008", "sibling_text": "sterntube lubrication how and draw air lubrication", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "STS-P02-02 - Stern tube lubrication, header tank and oil properties", "cross_family": true } ] }, { "qid": "MUM-2026-07-3762-Q006", "text": "nitrogen generator ?", "family": "Cargo Ops - Tankers", "subtopic": "IG System", "tid": "MUM-2026-07-3762", "tray": "review", "candidates": [ { "answer_id": "COT-P02-09", "score": 0.7753723859786987, "sibling_score": 0.7753723859786987, "answer_score": 0.47153098583221437, "sibling_qid": "MUM-2026-02-0739-Q001", "sibling_text": "what is nitrogen generator", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Explain why nitrogen is used on chemical tankers and describe the nitrogen generator, product-gas composition, oxygen removal and principal alarms/trips.", "cross_family": false }, { "answer_id": "LPG-LNG-006", "score": 0.7462281584739685, "sibling_score": 0.7462281584739685, "answer_score": 0.49907211065292356, "sibling_qid": "MUM-2026-08-3860-Q008", "sibling_text": "nitrogen generator working", "sibling_family": "", "via": "sibling", "answer_title": "Nitrogen generator, dry IG, and padding on gas carriers", "cross_family": false }, { "answer_id": "TOP-BRC-004", "score": 0.5304051637649536, "sibling_score": 0.5304051637649536, "answer_score": null, "sibling_qid": "MUM-2026-03-2642-Q025", "sibling_text": "how will u charge nitrogen in top bracing", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "4. Hydraulic accumulator, nitrogen charge and relief-valve pressure", "cross_family": true } ] }, { "qid": "MUM-2026-07-3762-Q008", "text": "pintle clearance ?", "family": "Shafting, Propeller & Rudder", "subtopic": "Stern Tube / Tail Shaft Bearings", "tid": "MUM-2026-07-3762", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.7552088499069214, "sibling_score": 0.7552088499069214, "answer_score": null, "sibling_qid": "NOI-2026-09-0024-Q001", "sibling_text": "pintle clearance", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "TB-BEAR-001", "score": 0.5618563294410706, "sibling_score": 0.5618563294410706, "answer_score": null, "sibling_qid": "MUM-2024-07-2765-Q005", "sibling_text": "thrust block arrangement how to check the clearance why is the clearance provided", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Thrust bearing clearance — measurement procedure & value", "cross_family": false }, { "answer_id": "PIST-CSI-B-003", "score": 0.5381797552108765, "sibling_score": 0.5381797552108765, "answer_score": null, "sibling_qid": "KOC-2025-09-1943-Q003", "sibling_text": "what are all the clearance will be taken in piston", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Inspecting, calibrating and gauging a removed piston", "cross_family": true } ] }, { "qid": "MUM-2026-07-3762-Q014", "text": "journal checks?", "family": "Drydock & Underwater Surveys", "subtopic": "Drydock / Hull Repair / Sea Chest", "tid": "MUM-2026-07-3762", "tray": "new", "candidates": [ { "answer_id": "CRPIN-CHK-P01-005", "score": 0.5385638475418091, "sibling_score": 0.5385638475418091, "answer_score": null, "sibling_qid": "KOL-2021-12-3492-Q005", "sibling_text": "journal slippage how to identify by inspection", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Journal or crankpin slippage — identifying, investigating, rectifying", "cross_family": true }, { "answer_id": "DDHSC-001", "score": 0.5296635627746582, "sibling_score": 0.5296635627746582, "answer_score": null, "sibling_qid": "KOC-2025-01-1892-Q006", "sibling_text": "dd checks", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Ship is in drydock and the dock is pumped dry — what checks do you carry out as Second Engineer?", "cross_family": false }, { "answer_id": "DDHSC-004", "score": 0.511332094669342, "sibling_score": 0.511332094669342, "answer_score": null, "sibling_qid": "KOC-2025-12-1986-Q003", "sibling_text": "first checks after dd", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "What checks are carried out after docking, and what are the first checks once the ship is out of dock?", "cross_family": false } ] }, { "qid": "MUM-2026-07-3763-Q001", "text": "Function of accumulator in reefer plant?", "family": "Refrigeration & AC", "subtopic": "Refer Safety", "tid": "MUM-2026-07-3763", "tray": "review", "candidates": [ { "answer_id": "REF-CYC-002", "score": 0.7040898203849792, "sibling_score": 0.7040898203849792, "answer_score": 0.4304343670606613, "sibling_qid": "KOL-2026-07-4281-Q006", "sibling_text": "accumulator in fridge compressor", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "2. Refrigeration plant components and their control functions", "cross_family": false }, { "answer_id": "CAP-CTRL-001", "score": 0.5782154202461243, "sibling_score": 0.5782154202461243, "answer_score": null, "sibling_qid": "MUM-2026-09-3864-Q006", "sibling_text": "reefer system capacity control", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "CG-001 · Capacity control in an AC / refrigeration compressor — why and how", "cross_family": false }, { "answer_id": "EQ-LINE-001", "score": 0.5642116069793701, "sibling_score": 0.5642116069793701, "answer_score": null, "sibling_qid": "KOC-2024-11-0451-Q004", "sibling_text": "reefer plant equilizing line", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Purpose and function of the equalising line / equalising valve in refrigeration service", "cross_family": false } ] }, { "qid": "MUM-2026-07-3763-Q002", "text": "Mill scale?", "family": "NDT & Material Testing", "subtopic": "Material Properties", "tid": "MUM-2026-07-3763", "tray": "new", "candidates": [ { "answer_id": "MATPROP-A-006", "score": 0.5760552287101746, "sibling_score": 0.5760552287101746, "answer_score": null, "sibling_qid": "CHE-2025-09-0215-Q006", "sibling_text": "explain mill test", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Destructive and material tests", "cross_family": false }, { "answer_id": "CPP-TCV-02", "score": 0.5179063081741333, "sibling_score": 0.5179063081741333, "answer_score": null, "sibling_qid": "KOL-2022-05-4009-Q002", "sibling_text": "mille cycle", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Miller cycle — principle and PV effect", "cross_family": true }, { "answer_id": "MICR-003", "score": 0.49055397510528564, "sibling_score": 0.49055397510528564, "answer_score": 0.42265175133943556, "sibling_qid": "KOL-2024-09-3711-Q010", "sibling_text": "q2 least count of inside micromere how wil u take 150 mm bore liner how maney scale in inside micrometer", "sibling_family": "Gauges & Tools", "via": "sibling", "answer_title": "Cylinder liner calibration with the inside micrometer", "cross_family": true } ] }, { "qid": "MUM-2026-07-3763-Q003", "text": "Crack and corrosion difference. Sustainable corrosion?", "family": "NDT & Material Testing", "subtopic": "Material Properties", "tid": "MUM-2026-07-3763", "tray": "review", "candidates": [ { "answer_id": "MATPROP-A-005", "score": 0.6674240827560425, "sibling_score": 0.6674240827560425, "answer_score": 0.5136521816253662, "sibling_qid": "KOL-2026-04-2054-Q004", "sibling_text": "crack and corrosion", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Corrosion and degradation mechanisms", "cross_family": false }, { "answer_id": "CFF-P02-006", "score": 0.5778524875640869, "sibling_score": 0.5778524875640869, "answer_score": 0.5011882930994034, "sibling_qid": "MUM-2025-11-2866-Q009", "sibling_text": "what is corrosion fatigue examples remedies actions as 2e", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Corrosion fatigue", "cross_family": false }, { "answer_id": "SUB-CORR-001", "score": 0.5675764083862305, "sibling_score": 0.5675764083862305, "answer_score": null, "sibling_qid": "MUM-2026-06-3394-Q005", "sibling_text": "substantial corrosion", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "SUB-CORR-01 — What is substantial corrosion, and how is it identified against survey limits?", "cross_family": true } ] }, { "qid": "MUM-2026-07-3763-Q004", "text": "ECU components?", "family": "Automation & Controls", "subtopic": "Bridge Control of ME", "tid": "MUM-2026-07-3763", "tray": "review", "candidates": [ { "answer_id": "EICU-MAN-P01-001", "score": 0.6832733750343323, "sibling_score": 0.6832733750343323, "answer_score": 0.5308657139539719, "sibling_qid": "KOC-2026-08-2158-Q013", "sibling_text": "function of eicu and ecu", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "EICU, ECU, CCU, ACU — the ME control units and what is controlled electronically", "cross_family": false }, { "answer_id": "RTFLEX-319-003", "score": 0.6386739611625671, "sibling_score": 0.6386739611625671, "answer_score": 0.4953949719667435, "sibling_qid": "KOL-2019-04-3232-Q002", "sibling_text": "ecu hcu acu ccu function", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Electronic control modules: WECS, FCM-20, ICU, VCU — and the MAN-ME contrast", "cross_family": true }, { "answer_id": "MEB-MEC-P03-002", "score": 0.6204200983047485, "sibling_score": 0.6204200983047485, "answer_score": 0.4770493030548096, "sibling_qid": "KOL-2026-01-4082-Q003", "sibling_text": "ecu from where gets signal", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "ME camless control architecture — ECS, CCU, EICU, MPC", "cross_family": true } ] }, { "qid": "MUM-2026-07-3763-Q006", "text": "In ME, One of cylinder lubrication fails, what to do?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Cylinder Lubrication", "tid": "MUM-2026-07-3763", "tray": "review", "candidates": [ { "answer_id": "CYL-LUB-B-006", "score": 0.7665297389030457, "sibling_score": 0.7665297389030457, "answer_score": 0.5285435318946838, "sibling_qid": "MUM-2024-02-0957-Q005", "sibling_text": "if one unit cylinder lubrication fail then how compensate that unit remaining i will update", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Lubricator / CCU failure and emergency cylinder-oil supply", "cross_family": false }, { "answer_id": "ALPHA-LUB-B-004", "score": 0.7001479864120483, "sibling_score": 0.7001479864120483, "answer_score": null, "sibling_qid": "KOC-2025-09-2072-Q003", "sibling_text": "how to change lubrication feed for each cylinder mechanically", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Alpha lubricator — feed-rate, timing, quantity and SLOC/SCOC calculation", "cross_family": false }, { "answer_id": "CYL-LUB-A-002", "score": 0.6975842118263245, "sibling_score": 0.6975842118263245, "answer_score": null, "sibling_qid": "MUM-2026-03-1004-Q006", "sibling_text": "adjustment of liner lubrication of one cylinder mcc", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Feed-rate control — quantity, timing and load/rpm-dependent dosing", "cross_family": false } ] }, { "qid": "MUM-2026-07-3764-Q001", "text": "Status of written and oral?", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2026-07-3764", "tray": "review", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.7611044645309448, "sibling_score": 0.7611044645309448, "answer_score": null, "sibling_qid": "MUM-2026-05-3187-Q001", "sibling_text": "status of other orals and written", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.5467724800109863, "sibling_score": 0.5467724800109863, "answer_score": null, "sibling_qid": "MUM-2026-05-2995-Q001", "sibling_text": "written and oral status type of ship and company", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": true }, { "answer_id": "AE-CRP-005", "score": 0.4284200966358185, "sibling_score": 0.4284200966358185, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q001", "sibling_text": "type of vessel engine make written and oral status", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": true } ] }, { "qid": "MUM-2026-07-3764-Q002", "text": "Type of ship?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-07-3764", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.837036669254303, "sibling_score": 0.837036669254303, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8018087148666382, "sibling_score": 0.8018087148666382, "answer_score": 0.5473707109689713, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8005447387695312, "sibling_score": 0.8005447387695312, "answer_score": 0.5217237085103988, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2026-07-3764-Q004", "text": "working of water mist lance?", "family": "SOLAS - Fire Safety", "subtopic": "Container Firefighting / HydroPen", "tid": "MUM-2026-07-3764", "tray": "review", "candidates": [ { "answer_id": "FIRE-P01-03", "score": 0.6890700459480286, "sibling_score": 0.6890700459480286, "answer_score": 0.47415406107902525, "sibling_qid": "KOC-2026-01-0780-Q008", "sibling_text": "hypermist working pump type pump pressure how mist formed at nozzle", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist — how the mist is formed and how it extinguishes fire", "cross_family": false }, { "answer_id": "FIRE-P01-01", "score": 0.6522728204727173, "sibling_score": 0.6522728204727173, "answer_score": null, "sibling_qid": "MUM-2025-09-0484-Q009", "sibling_text": "hypermist system working", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist / water-mist system — draw and explain the machinery-space arrangement and normal working", "cross_family": false }, { "answer_id": "FIRE-P02-03", "score": 0.6479185223579407, "sibling_score": 0.6479185223579407, "answer_score": null, "sibling_qid": "MUM-2026-09-3881-Q005", "sibling_text": "from which tank the water is supplied for hyper mist", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist — low water level or empty FW tank contingency", "cross_family": false } ] }, { "qid": "MUM-2026-07-3764-Q005", "text": "Difference between refrigerated container and porthole container ?", "family": "Cargo Ops - Containers", "subtopic": "CARGO HOLD", "tid": "MUM-2026-07-3764", "tray": "new", "candidates": [ { "answer_id": "REEF-PREP-005", "score": 0.6119865775108337, "sibling_score": 0.6119865775108337, "answer_score": 0.48646529912948605, "sibling_qid": "KOC-2025-10-2079-Q002", "sibling_text": "refrigeration containers types of refrigeration systems used in containers", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Reefer container — arrangement, air passage, ventilation and cooling types", "cross_family": true }, { "answer_id": "REEF-COMP-001", "score": 0.5816863775253296, "sibling_score": 0.5816863775253296, "answer_score": null, "sibling_qid": "KOC-2024-07-0369-Q013", "sibling_text": "low pressure cut out in reefer system internal paul sir type of ship container", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Reefer/AC compressor safeties and cut-outs — safety valve, HP and LP cut-outs", "cross_family": true }, { "answer_id": "REF-CYC-001", "score": 0.5665472149848938, "sibling_score": 0.5665472149848938, "answer_score": null, "sibling_qid": "KOL-2020-09-1545-Q004", "sibling_text": "diff between cargo ship and passenger ship refrigeration system one more can t remember", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "1. The vapour-compression refrigeration cycle and refrigerant flow", "cross_family": true } ] }, { "qid": "MUM-2026-07-3764-Q007", "text": "Deficiencies as per MARPOL annex 2 ?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "Annex VI / Pollutants & Scope", "tid": "MUM-2026-07-3764", "tray": "new", "candidates": [ { "answer_id": "AII-DISCH-007", "score": 0.6066392660140991, "sibling_score": 0.6066392660140991, "answer_score": 0.4801074296236038, "sibling_qid": "KOL-2026-02-1186-Q007", "sibling_text": "deficiency under annex 2 not satisfied", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What deficiency may be raised when the Annex II discharge criteria are not satisfied", "cross_family": true }, { "answer_id": "AVI-SCOPE-002", "score": 0.5695263743400574, "sibling_score": 0.5695263743400574, "answer_score": null, "sibling_qid": "KOL-2016-11-0018-Q004", "sibling_text": "marpol annex 6 complete", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Explain the purpose and scope of MARPOL Annex VI.", "cross_family": false }, { "answer_id": "A6-NSEC-005", "score": 0.5679726600646973, "sibling_score": 0.5679726600646973, "answer_score": null, "sibling_qid": "CHE-2025-12-0097-Q002", "sibling_text": "which marpol annex for ur ship and seemp detail", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP — Part I, II & III", "cross_family": false } ] }, { "qid": "MUM-2026-07-3764-Q008", "text": "How many containers can we place in a row ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-07-3764", "tray": "new", "candidates": [ { "answer_id": "CONT-FIRE-FINAL-1-007", "score": 0.5069347620010376, "sibling_score": 0.5069347620010376, "answer_score": null, "sibling_qid": "MUM-2025-10-0544-Q003", "sibling_text": "3 container size dimensions", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Standard container sizes and dimensions", "cross_family": true }, { "answer_id": "CONT-FIRE-FINAL-1-005", "score": 0.4845929443836212, "sibling_score": 0.4845929443836212, "answer_score": null, "sibling_qid": "MUM-2024-09-0210-Q006", "sibling_text": "tiers of container on deck", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Container ship stability and on-deck tier loading", "cross_family": true }, { "answer_id": "ESP-A-002", "score": 0.43475088477134705, "sibling_score": 0.43475088477134705, "answer_score": null, "sibling_qid": "MUM-2026-03-0811-Q002", "sibling_text": "why in containers", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "On which ships is ESP applicable, under which statutory framework, and when is it carried out?", "cross_family": true } ] }, { "qid": "MUM-2026-07-3764-Q009", "text": "Liability of shipowner for bunker oil pollution ?", "family": "Other Conventions", "subtopic": "CLC / Civil Liability", "tid": "MUM-2026-07-3764", "tray": "new", "candidates": [ { "answer_id": "CLC-CIV-A-007", "score": 0.6465200185775757, "sibling_score": 0.6465200185775757, "answer_score": 0.48106796741485597, "sibling_qid": "KOL-2023-12-0797-Q007", "sibling_text": "who is responsible for oil spill in bunker convention", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Bunker Convention — scope, liability and certificate", "cross_family": false }, { "answer_id": "CLC-CIV-A-001", "score": 0.6153416037559509, "sibling_score": 0.6153416037559509, "answer_score": null, "sibling_qid": "KOL-2022-07-0659-Q002", "sibling_text": "bunker oil pollution damage 3 mlc 2006", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "CLC Convention — objective, scope and shipowner liability", "cross_family": false }, { "answer_id": "SOPEP-003", "score": 0.5794035196304321, "sibling_score": 0.5794035196304321, "answer_score": null, "sibling_qid": "KOL-2022-12-0709-Q004", "sibling_text": "during bunkering oil spilled outside ship action as 2 e", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Oil Spill and Bunkering-Spill Response under the SOPEP", "cross_family": true } ] }, { "qid": "MUM-2026-07-3765-Q001", "text": "How to find KG of new built ship?", "family": "Ship Construction & Stability", "subtopic": "Stability Curves (GZ / KN)", "tid": "MUM-2026-07-3765", "tray": "new", "candidates": [ { "answer_id": "SCS-DEF-003", "score": 0.5080323815345764, "sibling_score": 0.5080323815345764, "answer_score": null, "sibling_qid": "MUM-2025-07-0355-Q003", "sibling_text": "what is your ship displacement", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "3. What is ship displacement?", "cross_family": false }, { "answer_id": "TONN-003", "score": 0.4912202060222626, "sibling_score": 0.4912202060222626, "answer_score": null, "sibling_qid": "MUM-2022-12-0078-Q003", "sibling_text": "what is deadweight how much of ur ships", "sibling_family": "", "via": "sibling", "answer_title": "Deadweight Tonnage (DWT) — definition and calculation", "cross_family": false }, { "answer_id": "TONN-001", "score": 0.47888970375061035, "sibling_score": 0.47888970375061035, "answer_score": null, "sibling_qid": "KOL-2025-09-1044-Q006", "sibling_text": "gross tonnage how to calculate", "sibling_family": "", "via": "sibling", "answer_title": "Gross Tonnage (GT / GRT) — basis, units, significance", "cross_family": false } ] }, { "qid": "MUM-2026-07-3765-Q003", "text": "How SMS is effectively evaluated?", "family": "Surveys - Statutory", "subtopic": "Audit (Internal/External)", "tid": "MUM-2026-07-3765", "tray": "new", "candidates": [ { "answer_id": "ISM-AUD-P02-004", "score": 0.4830835461616516, "sibling_score": 0.4830835461616516, "answer_score": null, "sibling_qid": "KOC-2024-05-0345-Q004", "sibling_text": "how do you do intermediate survey of sms", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "SMS contents, manuals, documents and drill records onboard", "cross_family": true }, { "answer_id": "SMSFR-002", "score": 0.46033263206481934, "sibling_score": 0.46033263206481934, "answer_score": null, "sibling_qid": "KOL-2019-01-0255-Q005", "sibling_text": "sms objectives key points", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the Safety Management System — the SMS manual, its contents, objectives, why it is needed onboard, and the company SMS policy?", "cross_family": true }, { "answer_id": "ISM-AUD-P02-003", "score": 0.4546317458152771, "sibling_score": 0.4546317458152771, "answer_score": null, "sibling_qid": "MUM-2026-04-0928-Q006", "sibling_text": "ism elements and functional requirements of sms", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "The six functional requirements of the ISM Code (clause 1.4)", "cross_family": true } ] }, { "qid": "MUM-2026-07-3765-Q005", "text": "How ME engine RPM indicator works?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "MC-C vs MEB Engine", "tid": "MUM-2026-07-3765", "tray": "review", "candidates": [ { "answer_id": "PROX-SW-004", "score": 0.7122788429260254, "sibling_score": 0.7122788429260254, "answer_score": null, "sibling_qid": "KOL-2022-04-2558-Q004", "sibling_text": "m e rpm indicator working", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Speed measurement by sensor, and the proximity sensor working principle", "cross_family": true }, { "answer_id": "ANG-ENC-003", "score": 0.6210228800773621, "sibling_score": 0.6210228800773621, "answer_score": 0.4956354737281799, "sibling_qid": "CHE-2026-04-0373-Q001S5", "sibling_text": "how many tacho meter for measure rpm", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Working principle: sensing crank angle, speed and direction", "cross_family": false }, { "answer_id": "EPC-P03-006", "score": 0.6187999844551086, "sibling_score": 0.6187999844551086, "answer_score": 0.5242916107177734, "sibling_qid": "KOL-2026-05-4089-Q009", "sibling_text": "how rpm indicator of turbocharger tachometer working principle", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "How does a tachometer work — working principle and location — and what is a tacho-generator?", "cross_family": true } ] }, { "qid": "MUM-2026-07-3766-Q005", "text": "Generator piston rings groove differences ?", "family": "2-Stroke - Components (Other)", "subtopic": "Piston (Crown/Skirt/Inspection)", "tid": "MUM-2026-07-3766", "tray": "review", "candidates": [ { "answer_id": "PRING-CLR-A-003", "score": 0.7477195858955383, "sibling_score": 0.7477195858955383, "answer_score": 0.5376577734947204, "sibling_qid": "MUM-2025-05-0969-Q009", "sibling_text": "difference between piston ring groove and scrapper ring groove", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston-ring groove versus scraper-ring groove", "cross_family": false }, { "answer_id": "PRING-CLR-A-002", "score": 0.6916124820709229, "sibling_score": 0.6916124820709229, "answer_score": 0.4991957306861877, "sibling_qid": "KOC-2025-10-1059-Q004", "sibling_text": "piston ring clearences x butt clearence when taken i told intially when new rings are put x when but clearence increase as radial thickness reduces gap increases", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston-ring clearances and calibration — butt, axial, radial, wear limits", "cross_family": false }, { "answer_id": "AE-CRP-003", "score": 0.6840106844902039, "sibling_score": 0.6840106844902039, "answer_score": 0.5187406659126281, "sibling_qid": "MUM-2025-12-1229-Q002", "sibling_text": "difference between scrapper ring groove and piston ring grooves in aux engine", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE piston, ring and groove checks; piston material", "cross_family": true } ] }, { "qid": "MUM-2026-07-3767-Q002", "text": "BWTS (Ballast Water Treatment System) working, UV lamp maintenance, values being monitored, alarms, and trips.?", "family": "Cargo Ops - Tankers", "subtopic": "IG Alarms / Trips", "tid": "MUM-2026-07-3767", "tray": "new", "candidates": [ { "answer_id": "BWMS-C-003", "score": 0.6237671375274658, "sibling_score": 0.6237671375274658, "answer_score": null, "sibling_qid": "MUM-2022-08-0038-Q005", "sibling_text": "in bwts system uv treatment type what to check in the uv bulb ppe and radiation reading", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "UV treatment — principle, checks, and lamp safety", "cross_family": true }, { "answer_id": "MR-DS-PV-B-003", "score": 0.6036057472229004, "sibling_score": 0.6036057472229004, "answer_score": null, "sibling_qid": "MUM-2026-03-2938-Q003", "sibling_text": "alarms and trips of deck seal", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "3. Alarms, trips, valves, and abnormal conditions of the deck seal", "cross_family": false }, { "answer_id": "IGAT-583-003", "score": 0.5916978716850281, "sibling_score": 0.5916978716850281, "answer_score": null, "sibling_qid": "KOC-2026-04-0903-Q007", "sibling_text": "ig alarms and trips and it s values int no question", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What are the set values for the IG system alarms and trips — IG line high, low and low-low pressure, oxygen content, PV valve and breaker pressures?", "cross_family": false } ] }, { "qid": "MUM-2026-07-3767-Q003", "text": "Static and dynamic tests of cranes, and how to order a wire for the crane if there is no part number in the manual?", "family": "Auxiliary Equipment", "subtopic": "Shackle / Wire Rope", "tid": "MUM-2026-07-3767", "tray": "review", "candidates": [ { "answer_id": "AUX-CRANE-003", "score": 0.6502172350883484, "sibling_score": 0.6502172350883484, "answer_score": null, "sibling_qid": "KOC-2022-07-0966-Q020", "sibling_text": "crane checks 19 how will you order crane wire 20 before changing crane wire what will you check for certificate", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Routine checks, inspections, maintenance and risk-assessment of cranes, cargo gear, lifting gear and wires", "cross_family": false }, { "answer_id": "ERC-345-003", "score": 0.5959776043891907, "sibling_score": 0.5959776043891907, "answer_score": null, "sibling_qid": "MUM-2022-10-2706-Q007", "sibling_text": "checks on er overhead crane before lifting piston will you use crane if strands of wire are damaged", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Pre-lift checks and maintenance", "cross_family": false }, { "answer_id": "CRANE-ROCK-LT-002", "score": 0.5697502493858337, "sibling_score": 0.5697502493858337, "answer_score": 0.42150188237428665, "sibling_qid": "MUM-2026-02-2549-Q005", "sibling_text": "static and dynamic load test of crane a i told using dynamometer he asked dynamometer test is static or dynamic i told static he then told what is dynamic test i told by water bag test but i am not sure it is right or not", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Crane load tests — static, dynamic, proof load, SWL and certification", "cross_family": true } ] }, { "qid": "MUM-2026-07-3767-Q005", "text": "Vulcanization of rubber and how seals of the stern tube are connected?", "family": "Drydock & Underwater Surveys", "subtopic": "Stern Tube / Tail Shaft", "tid": "MUM-2026-07-3767", "tray": "review", "candidates": [ { "answer_id": "STERN-P03-002", "score": 0.764622151851654, "sibling_score": 0.764622151851654, "answer_score": 0.532496839761734, "sibling_qid": "CHE-2026-04-0523-Q004", "sibling_text": "bonding of stern tube seal explanation vulcanization method of joining rubber seal", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Stern-tube seals: arrangement, air/lip seals, renewal/replacement and the vulcanized split-seal fitting method", "cross_family": false }, { "answer_id": "STS-P02-006", "score": 0.5887033343315125, "sibling_score": 0.5887033343315125, "answer_score": 0.4327308118343353, "sibling_qid": "KOL-2022-01-1658-Q002", "sibling_text": "stern tube seal all major parts and properties development", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "STS-P02-06 - Stern tube seals, integrity test, sleeve wasting and afloat repair", "cross_family": false }, { "answer_id": "STT-BRG-004", "score": 0.5606207251548767, "sibling_score": 0.5606207251548767, "answer_score": null, "sibling_qid": "KOC-2025-12-1078-Q008", "sibling_text": "stern tube fwd seal arrangement how seal is secured how liner is secured", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "3. Chrome liner and seal securing — fitting, retention and repair", "cross_family": true } ] }, { "qid": "MUM-2026-07-3767-Q006", "text": "Main engine tachometer working, commo problems,andtroubleshooting?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE vs ME Differences", "tid": "MUM-2026-07-3767", "tray": "review", "candidates": [ { "answer_id": "PROX-SW-004", "score": 0.704155683517456, "sibling_score": 0.704155683517456, "answer_score": null, "sibling_qid": "KOL-2021-09-2489-Q001", "sibling_text": "main engine rpm indicator working", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Speed measurement by sensor, and the proximity sensor working principle", "cross_family": true }, { "answer_id": "EPC-P03-006", "score": 0.6837868690490723, "sibling_score": 0.6837868690490723, "answer_score": 0.5188762426376342, "sibling_qid": "KOL-2025-03-2771-Q005", "sibling_text": "tachometer working", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "How does a tachometer work — working principle and location — and what is a tacho-generator?", "cross_family": true }, { "answer_id": "AEDEC-291-004", "score": 0.6326815485954285, "sibling_score": 0.6326815485954285, "answer_score": null, "sibling_qid": "KOL-2019-11-3298-Q002", "sibling_text": "ae full oh carried out ae running on no load what all things u will check as 2nd eng not satisfied with answer", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "4. Checks on no-load and before taking load", "cross_family": false } ] }, { "qid": "MUM-2026-07-3767-Q008", "text": "Action to take if lube oil is degraded?", "family": "Fault Diagnosis & 2/E Actions", "subtopic": "", "tid": "MUM-2026-07-3767", "tray": "review", "candidates": [ { "answer_id": "LO-PR-ALM-001", "score": 0.6570858359336853, "sibling_score": 0.6570858359336853, "answer_score": 0.4406474083662033, "sibling_qid": "MUM-2026-01-1244-Q006", "sibling_text": "action as 2ae if low lube oil pressure alarm comes", "sibling_family": "Fault Diagnosis & 2/E Actions", "via": "sibling", "answer_title": "Main engine low lubricating-oil pressure — alarm, slowdown or trip: your actions as 2/E, and is the alarm true or false?", "cross_family": false }, { "answer_id": "CYL-LUB-A-002", "score": 0.6490924954414368, "sibling_score": 0.6490924954414368, "answer_score": null, "sibling_qid": "MUM-2026-05-3265-Q010", "sibling_text": "lube oil consumption more what is action", "sibling_family": "Fault Diagnosis & 2/E Actions", "via": "sibling", "answer_title": "Feed-rate control — quantity, timing and load/rpm-dependent dosing", "cross_family": false }, { "answer_id": "LO-TEST-P02-003", "score": 0.6394065618515015, "sibling_score": 0.6394065618515015, "answer_score": null, "sibling_qid": "MUM-2023-02-2164-Q009", "sibling_text": "lub oil have microdegrad your action", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Abnormal LO condition: sump rise, colour, high temperature/pressure, lacquer, deterioration", "cross_family": true } ] }, { "qid": "MUM-2026-07-3767-Q009", "text": "Full procedure for the mounting of resin chocks?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Chocks (Resin/Metal)", "tid": "MUM-2026-07-3767", "tray": "new", "candidates": [ { "answer_id": "CHK-RM-002", "score": 0.5214123725891113, "sibling_score": 0.5214123725891113, "answer_score": 0.42195352613925935, "sibling_qid": "KOL-2021-08-3437-Q004", "sibling_text": "resin chok how to do", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Explain resin chocking — what it is, how it is done, and how resin chocks are cast and poured.", "cross_family": false }, { "answer_id": "CHK-RM-001", "score": 0.48238039016723633, "sibling_score": 0.48238039016723633, "answer_score": 0.36345645040273666, "sibling_qid": "KOL-2025-03-1970-Q006", "sibling_text": "how chocks are placed", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What are chocks? Function, types, where fitted and how placed — which have the biggest area, and how does the bedplate connect to the hull?", "cross_family": false }, { "answer_id": "BED-CHOCK-005", "score": 0.48061999678611755, "sibling_score": 0.48061999678611755, "answer_score": null, "sibling_qid": "MUM-2026-05-3144-Q004", "sibling_text": "chocks arrangement", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Explain the HDB, jack-bolt and chock arrangement for a main-engine bedplate.", "cross_family": false } ] }, { "qid": "MUM-2026-07-3767-Q013", "text": "Actions at sea regarding a hydraulic line repair of a bow thruster?", "family": "Cargo Ops - Tankers", "subtopic": "Cargo Pump (Framo / Eductor)", "tid": "MUM-2026-07-3767", "tray": "new", "candidates": [ { "answer_id": "CYL-LINER-P03-004", "score": 0.49150222539901733, "sibling_score": 0.49150222539901733, "answer_score": 0.4447680592536926, "sibling_qid": "KOL-2018-05-1375-Q007", "sibling_text": "liner crack how to reach port what repair u will do on liner on reaching port of u don t have spare one", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Cracked or leaking liner at sea, no spare — isolating the unit and reaching port", "cross_family": true }, { "answer_id": "CPFE-583-007", "score": 0.48970115184783936, "sibling_score": 0.48970115184783936, "answer_score": null, "sibling_qid": "KOL-2019-03-1445-Q010", "sibling_text": "in hydraulic line how is", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Pressure not building — and purging the hydraulic system", "cross_family": false }, { "answer_id": "STS-P02-006", "score": 0.48663654923439026, "sibling_score": 0.48663654923439026, "answer_score": null, "sibling_qid": "MUM-2026-02-2575-Q002", "sibling_text": "changing of stern tube seal at sea", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "STS-P02-06 - Stern tube seals, integrity test, sleeve wasting and afloat repair", "cross_family": true } ] }, { "qid": "MUM-2026-07-3767-Q015", "text": "Gasket materials, how to order them, and how to know which gasket is compatible with which medium ? (specifically looking for NBR compatibility with oil).", "family": "MARPOL - General & Compliance", "subtopic": "Bunker Sample Storage", "tid": "MUM-2026-07-3767", "tray": "new", "candidates": [ { "answer_id": "GKT-MAT-003", "score": 0.5646585822105408, "sibling_score": 0.5646585822105408, "answer_score": 0.5322845578193665, "sibling_qid": "MUM-2025-03-2274-Q004", "sibling_text": "how will you tell junior engineer difference between general purpose gasket and oil gasket", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Explaining general-purpose versus oil-service gaskets to a junior engineer", "cross_family": true }, { "answer_id": "LO-TEST-P01-004", "score": 0.5274618864059448, "sibling_score": 0.5274618864059448, "answer_score": null, "sibling_qid": "MUM-2024-02-2221-Q005", "sibling_text": "how to order lube oil for various machinery what grade and specs for refer system oil", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "TBN, BN, TAN, SAN and the SAE grade", "cross_family": true }, { "answer_id": "INCIN-002", "score": 0.4939889907836914, "sibling_score": 0.4939889907836914, "answer_score": null, "sibling_qid": "KOL-2017-12-0130-Q003", "sibling_text": "what not to burn in incinerator 4 international shore coupling thickness of gasket used what pr withstand the gasket where is the location where to put", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "What you can and cannot burn under MARPOL", "cross_family": true } ] }, { "qid": "MUM-2026-07-3768-Q001", "text": "Admit card and cdc verification Room check Asked to wear tie", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2026-07-3768", "tray": "new", "candidates": [ { "answer_id": "EDG-P01-002", "score": 0.4703878164291382, "sibling_score": 0.4703878164291382, "answer_score": null, "sibling_qid": "CHE-2025-08-0292-Q003", "sibling_text": "wt u check in emcy gen room", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Emergency generator room — location and rounds", "cross_family": true }, { "answer_id": "IND-CARD-A-001", "score": 0.42462778091430664, "sibling_score": 0.42462778091430664, "answer_score": null, "sibling_qid": "KOL-2026-03-2045-Q010", "sibling_text": "how the graph draw behind the admit card", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Reading the power / draw card — what it tells you", "cross_family": true }, { "answer_id": "SCBA-EEBD-001", "score": 0.41552138328552246, "sibling_score": 0.41552138328552246, "answer_score": null, "sibling_qid": "KOC-2023-05-0189-Q004", "sibling_text": "scaba checks and how to wear", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "SCBA / CABA compressor — checks, oil, air quality, spares, certificate", "cross_family": true } ] }, { "qid": "MUM-2026-07-3768-Q002", "text": "Company name and presea training ?", "family": "Status & Introduction", "subtopic": "Company Introduction", "tid": "MUM-2026-07-3768", "tray": "new", "candidates": [ { "answer_id": "STCW-MAN-006", "score": 0.49219706654548645, "sibling_score": 0.49219706654548645, "answer_score": null, "sibling_qid": "NOI-2026-09-0008-Q001", "sibling_text": "training institue sea time after class 4 coc", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "What are the levels and categories of seafarer under STCW, and what are the duties of the Second Engineer at management level?", "cross_family": false }, { "answer_id": "ISPS-SL-002", "score": 0.4666396975517273, "sibling_score": 0.4666396975517273, "answer_score": null, "sibling_qid": "KOL-2019-10-0338-Q004", "sibling_text": "training imparted under isps", "sibling_family": "ISPS", "via": "sibling", "answer_title": "Elements, contents, functional requirements, training and equipment", "cross_family": true }, { "answer_id": "AE-CRP-005", "score": 0.42979860305786133, "sibling_score": 0.42979860305786133, "answer_score": null, "sibling_qid": "MUM-2026-05-3248-Q001", "sibling_text": "introduction sea time company pre sea ship type engine type me", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "MUM-2026-07-3768-Q003", "text": "Type of vessel sailed?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-07-3768", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8419500589370728, "sibling_score": 0.8419500589370728, "answer_score": null, "sibling_qid": "CHE-2026-02-0481-Q001", "sibling_text": "type of vessels sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8252046704292297, "sibling_score": 0.8252046704292297, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.8038274645805359, "sibling_score": 0.8038274645805359, "answer_score": null, "sibling_qid": "CHE-2026-03-0255-Q001", "sibling_text": "type of vessel and engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "MUM-2026-07-3768-Q005", "text": "⁠Engine not starting astern -actions?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Interlocks", "tid": "MUM-2026-07-3768", "tray": "new", "candidates": [ { "answer_id": "ME-NOSTART-004", "score": 0.587550163269043, "sibling_score": 0.587550163269043, "answer_score": 0.40417174696922303, "sibling_qid": "KOL-2021-08-1623-Q005", "sibling_text": "m e not starting on astern command", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Will not start on astern command — checks and causes", "cross_family": true }, { "answer_id": "RSTA-563-002", "score": 0.5871599316596985, "sibling_score": 0.5871599316596985, "answer_score": null, "sibling_qid": "MUM-2026-05-3249-Q008", "sibling_text": "astern given astern kick not starting engine in astern as a 2nd engineer action direction how astern process has taken place", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "She runs on starting air but won't fire on fuel — reasons and your action", "cross_family": false }, { "answer_id": "ME-NOSTART-001", "score": 0.5236408710479736, "sibling_score": 0.5236408710479736, "answer_score": null, "sibling_qid": "MUM-2026-04-2669-Q003", "sibling_text": "ae starting on air not on fuel reason nd actions", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Starts / turns on air but will not start on fuel — causes, checks and rectification", "cross_family": true } ] }, { "qid": "MUM-2026-07-3768-Q010", "text": "⁠One of steering the ram is leaking heavily how to proceed/", "family": "Steering Gear & Hydraulics", "subtopic": "Steering Gear System", "tid": "MUM-2026-07-3768", "tray": "review", "candidates": [ { "answer_id": "SGRS-328-001", "score": 0.7573042511940002, "sibling_score": 0.7573042511940002, "answer_score": 0.4766983032226562, "sibling_qid": "MUM-2026-06-3398-Q004", "sibling_text": "steering ram leaking how to fix", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "How do you change or replace a steering gear ram seal in place?", "cross_family": false }, { "answer_id": "SG-RAM-001", "score": 0.733502209186554, "sibling_score": 0.733502209186554, "answer_score": 0.5123891294002533, "sibling_qid": "KOL-2026-03-3932-Q003", "sibling_text": "2 ram system 1 ram leaking how to run steering gear system", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Two-ram steering gear — a ram or cylinder cracks, leaks, seizes or ruptures: how do you keep steering?", "cross_family": false }, { "answer_id": "SGRS-328-002", "score": 0.726974606513977, "sibling_score": 0.726974606513977, "answer_score": null, "sibling_qid": "MUM-2026-06-3606-Q002", "sibling_text": "steering gear ram oil seal is leaking how will u replace it", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "What type of seal is used for steering gear ram sealing?", "cross_family": false } ] }, { "qid": "MUM-2026-07-3768-Q011", "text": "⁠Two threads in fuel pump/", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Cam & Lead", "tid": "MUM-2026-07-3768", "tray": "new", "candidates": [ { "answer_id": "FCL-P01-001", "score": 0.632036566734314, "sibling_score": 0.632036566734314, "answer_score": null, "sibling_qid": "MUM-2026-03-2942-Q005", "sibling_text": "2 fuel pump lead", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel pump lead and fuel cam lead: meaning, measurement, significance and adjustment", "cross_family": false }, { "answer_id": "FCL-P02-001", "score": 0.6284841895103455, "sibling_score": 0.6284841895103455, "answer_score": 0.42565650343894956, "sibling_qid": "KOC-2024-05-1842-Q003", "sibling_text": "2s fuel pump timing method any one", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel pump / injection timing check, setting, and adjustment", "cross_family": false }, { "answer_id": "FCL-P03-002", "score": 0.6091371178627014, "sibling_score": 0.6091371178627014, "answer_score": null, "sibling_qid": "KOC-2024-12-1883-Q003", "sibling_text": "fuel pump timing man engine", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "MAN B&W / MC-C / MCC fuel pump timing and lead", "cross_family": false } ] }, { "qid": "MUM-2026-07-3768-Q012", "text": "⁠all injector overhauled for AE how to purge out the air/", "family": "Refrigeration & AC", "subtopic": "Air in System", "tid": "MUM-2026-07-3768", "tray": "new", "candidates": [ { "answer_id": "AEFP-471-008", "score": 0.5836634635925293, "sibling_score": 0.5836634635925293, "answer_score": 0.5512601315975189, "sibling_qid": "KOL-2023-10-4028-Q007", "sibling_text": "how to purge ae high pressure pipes after injector routine", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "How do you purge the AE fuel-pump-to-injector HP pipe after an injector routine or overhaul?", "cross_family": true }, { "answer_id": "AIR-REF-004", "score": 0.580011785030365, "sibling_score": 0.580011785030365, "answer_score": null, "sibling_qid": "MUM-2025-10-2862-Q009", "sibling_text": "how to purge air got function 6", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "4. Detecting and purging air from a refrigeration system", "cross_family": false }, { "answer_id": "FLGLS-002", "score": 0.5454782247543335, "sibling_score": 0.5454782247543335, "answer_score": 0.5151456534862519, "sibling_qid": "KOL-2024-10-3720-Q002", "sibling_text": "how to purge high pressure pipe and fuel injector in main engine", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Purging a HP fuel line / injector and confirming all air is removed", "cross_family": true } ] }, { "qid": "MUM-2026-07-3769-Q001", "text": "Vessel type ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-07-3769", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8377512097358704, "sibling_score": 0.8377512097358704, "answer_score": null, "sibling_qid": "MUM-2026-06-3384-Q001", "sibling_text": "type of vessel", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.7563543915748596, "sibling_score": 0.7563543915748596, "answer_score": null, "sibling_qid": "CHE-2026-02-0481-Q001", "sibling_text": "type of vessels sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7519385814666748, "sibling_score": 0.7519385814666748, "answer_score": 0.5119491636753082, "sibling_qid": "CHE-2026-02-0109-Q001", "sibling_text": "type of ship explain what type is your vessel explain their type and difference", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "MUM-2026-07-3769-Q002", "text": "Engine type?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-07-3769", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.8324224948883057, "sibling_score": 0.8324224948883057, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.8043279051780701, "sibling_score": 0.8043279051780701, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-001", "score": 0.463600355386734, "sibling_score": null, "answer_score": 0.463600355386734, "sibling_qid": "", "sibling_text": "1 turbocharger type main engine vs generator engine compressor is centrifugal in both cases only the turbine type differs large slow speed main engine axial flow turbine single stage constant pressure system", "sibling_family": "", "via": "answer_title", "answer_title": "1. Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "MUM-2026-07-3769-Q005", "text": "Pressure vessel safety ?", "family": "Boilers - Safety & Survey", "subtopic": "Accumulation Test", "tid": "MUM-2026-07-3769", "tray": "review", "candidates": [ { "answer_id": "HYD-602-002", "score": 0.8370228409767151, "sibling_score": 0.8370228409767151, "answer_score": null, "sibling_qid": "MUM-2026-05-3129-Q005", "sibling_text": "pressure vessel safety", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Why is the hydrostatic test carried out, when is it done, and what does it prove?", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.7521420121192932, "sibling_score": 0.7521420121192932, "answer_score": null, "sibling_qid": "CHE-2026-05-0583-Q002", "sibling_text": "boiler safety valve lifting pressure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "BLR-SURV-P02-008", "score": 0.7427501082420349, "sibling_score": 0.7427501082420349, "answer_score": null, "sibling_qid": "MUM-2026-05-3078-Q008", "sibling_text": "safeties on boiler", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "MUM-2026-07-3769-Q006", "text": "Fatigue and temp relation ?", "family": "NDT & Material Testing", "subtopic": "Creep / Fatigue Failure", "tid": "MUM-2026-07-3769", "tray": "review", "candidates": [ { "answer_id": "CFF-P02-001", "score": 0.7779600024223328, "sibling_score": 0.7779600024223328, "answer_score": null, "sibling_qid": "MUM-2026-05-3129-Q006", "sibling_text": "fatigue and temp relation", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Fatigue failure — what it is and where it occurs", "cross_family": false }, { "answer_id": "CFF-P02-002", "score": 0.5604549646377563, "sibling_score": 0.5604549646377563, "answer_score": null, "sibling_qid": "MUM-2026-05-3002-Q003", "sibling_text": "fatigue where happen draw sn curve explain sn curve", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "The S-N curve and the endurance (fatigue) limit", "cross_family": false }, { "answer_id": "FWG-RO-005", "score": 0.5358454585075378, "sibling_score": 0.5358454585075378, "answer_score": null, "sibling_qid": "MUM-2025-05-2795-Q003", "sibling_text": "fwg she ll temp high", "sibling_family": "Fresh Water & Domestic Systems", "via": "sibling", "answer_title": "How does the FWG heat exchanger differ from other heat exchangers, and why does the shell temperature go high?", "cross_family": true } ] }, { "qid": "MUM-2026-07-3770-Q006", "text": "Rudder jumping clearance ?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "MUM-2026-07-3770", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.7796953320503235, "sibling_score": 0.7796953320503235, "answer_score": 0.39768825620412823, "sibling_qid": "KOL-2016-12-0036-Q005", "sibling_text": "rudder jumping clearance weardown clearance", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "RVSG-213-005", "score": 0.7301927208900452, "sibling_score": 0.7301927208900452, "answer_score": 0.5386001735925674, "sibling_qid": "KOC-2022-05-0963-Q006", "sibling_text": "rudder jumping clearence increased what s your actions", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Jumping clearance, thrust accommodation, stock connection & overhaul", "cross_family": false }, { "answer_id": "RUN-CLR-003", "score": 0.5450040459632873, "sibling_score": null, "answer_score": 0.5450040459632873, "sibling_qid": "", "sibling_text": "jumping clearance how it is measured and where it is checked steering gear rudder clearance notan engine clearance do not confuse with bumping location rudder jumping bar pad under the rudder in ram gear between swivel block and upper ram fork end", "sibling_family": "", "via": "answer_title", "answer_title": "Jumping clearance — how it is measured and where it is checked", "cross_family": false } ] }, { "qid": "MUM-2026-07-3770-Q007", "text": "Capacity control Refrigeration ?", "family": "Refrigeration & AC", "subtopic": "AC Capacity", "tid": "MUM-2026-07-3770", "tray": "review", "candidates": [ { "answer_id": "CAP-CTRL-001", "score": 0.833072304725647, "sibling_score": 0.833072304725647, "answer_score": 0.5998032867908477, "sibling_qid": "MUM-2026-05-3144-Q007", "sibling_text": "capacity control refrigeration", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "CG-001 · Capacity control in an AC / refrigeration compressor — why and how", "cross_family": false }, { "answer_id": "CCSC-314-002", "score": 0.7778597474098206, "sibling_score": 0.7778597474098206, "answer_score": 0.5791596531867981, "sibling_qid": "KOL-2019-10-1492-Q008", "sibling_text": "capacity control refrigeration refrigerant charging why belt driven", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Compressor capacity control and the capacity controller", "cross_family": false }, { "answer_id": "TON-REF-001", "score": 0.7509831190109253, "sibling_score": 0.7509831190109253, "answer_score": null, "sibling_qid": "MUM-2026-04-2675-Q006S4", "sibling_text": "one ton of refrigeration capacity control in ac", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "What is 1 ton of refrigeration, and what is its equivalent cooling capacity?", "cross_family": false } ] }, { "qid": "MUM-2026-07-3770-Q011", "text": "Thermostatic expansion valve, can settings of it be altered on board?", "family": "Refrigeration & AC", "subtopic": "TEV / TXV", "tid": "MUM-2026-07-3770", "tray": "review", "candidates": [ { "answer_id": "TEV-TXV-005", "score": 0.8280128240585327, "sibling_score": 0.8280128240585327, "answer_score": null, "sibling_qid": "MUM-2026-05-3144-Q011", "sibling_text": "thermostatic expansion valve can settings of it be altered on board", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Throttling process and superheat control across the TEV", "cross_family": false }, { "answer_id": "TEV-TXV-004", "score": 0.641126275062561, "sibling_score": 0.641126275062561, "answer_score": 0.469452092051506, "sibling_qid": "MUM-2026-05-3294-Q010", "sibling_text": "electronic thermostatic expansion valve", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Electronic expansion valve (electronic TEV)", "cross_family": false }, { "answer_id": "TEV-TXV-002", "score": 0.6225466728210449, "sibling_score": 0.6225466728210449, "answer_score": 0.4734856516122818, "sibling_qid": "MUM-2022-12-1037-Q007", "sibling_text": "explain thermostatic valve", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "TEV / TXV — purpose, construction, location and working", "cross_family": false } ] }, { "qid": "MUM-2026-07-3771-Q001", "text": "Asked about status other functions and written exam", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-07-3771", "tray": "new", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.6194908618927002, "sibling_score": 0.6194908618927002, "answer_score": null, "sibling_qid": "MUM-2026-01-1252-Q001", "sibling_text": "status of results oral written exam", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": true }, { "answer_id": "DUS-P1-02", "score": 0.5972725749015808, "sibling_score": 0.5972725749015808, "answer_score": null, "sibling_qid": "KOL-2025-08-3851-Q006", "sibling_text": "drydock plans rudder checks cross questions what about other written oral exams status told waiting for naval written result to come all other paper cleared", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Plans, drawings and special tools kept ready for drydock — engine-department view", "cross_family": true }, { "answer_id": "EXHV-P01-001", "score": 0.5532310605049133, "sibling_score": 0.5532310605049133, "answer_score": null, "sibling_qid": "CHE-2026-01-0101-Q001", "sibling_text": "types of ship done and exam status", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false } ] }, { "qid": "MUM-2026-07-3771-Q002", "text": "Types of vessel done ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-07-3771", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.7596619725227356, "sibling_score": 0.7596619725227356, "answer_score": null, "sibling_qid": "MUM-2026-02-1280-Q001", "sibling_text": "type of ship done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.693173885345459, "sibling_score": 0.693173885345459, "answer_score": null, "sibling_qid": "CHE-2026-02-0481-Q001", "sibling_text": "type of vessels sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "SOLAS12-BC-A-001", "score": 0.6763768792152405, "sibling_score": 0.6763768792152405, "answer_score": null, "sibling_qid": "MUM-2026-04-2958-Q001", "sibling_text": "ship done bulk carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "SOLAS definition and scope of a bulk carrier", "cross_family": false } ] }, { "qid": "MUM-2026-07-3771-Q004", "text": "Which is more effective at low load ?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "VIT Mechanism", "tid": "MUM-2026-07-3771", "tray": "new", "candidates": [ { "answer_id": "VIT-MECH-B-001", "score": 0.5278974175453186, "sibling_score": 0.5278974175453186, "answer_score": null, "sibling_qid": "KOL-2020-08-1543-Q002", "sibling_text": "vit detail and why not used at low load", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "The VIT / Super VIT curve — breakpoint, range and load-dependent advance/retard", "cross_family": false }, { "answer_id": "LS-IMB-A-001", "score": 0.48724597692489624, "sibling_score": 0.48724597692489624, "answer_score": null, "sibling_qid": "MUM-2024-04-0168-Q022", "sibling_text": "one generator load is low", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Two paralleled generators sharing unequal load — cause and correction", "cross_family": true }, { "answer_id": "EGTP-P02-008", "score": 0.48678702116012573, "sibling_score": 0.48678702116012573, "answer_score": null, "sibling_qid": "MUM-2023-08-1058-Q009", "sibling_text": "why not at and below 40 45 load", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "General Engine Theory — Operating Envelope", "cross_family": true } ] }, { "qid": "MUM-2026-07-3771-Q005", "text": "Types of stern tube.?", "family": "Drydock & Underwater Surveys", "subtopic": "Stern Tube / Tail Shaft", "tid": "MUM-2026-07-3771", "tray": "review", "candidates": [ { "answer_id": "STS-P02-003", "score": 0.757915198802948, "sibling_score": 0.757915198802948, "answer_score": 0.49222315549850465, "sibling_qid": "MUM-2026-05-3237-Q014", "sibling_text": "types of stern tube", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "STS-P02-03 - Stern tube arrangement, fitting in hull and shaft support", "cross_family": false }, { "answer_id": "STS-P02-004", "score": 0.668184220790863, "sibling_score": 0.668184220790863, "answer_score": null, "sibling_qid": "MUM-2023-06-2735-Q004", "sibling_text": "type of lagging used in stern tube", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "STS-P02-04 - Tail shaft design, bearing materials and bending support", "cross_family": false }, { "answer_id": "STT-BRG-002", "score": 0.5588128089904785, "sibling_score": null, "answer_score": 0.5588128089904785, "sibling_qid": "", "sibling_text": "1 stern tube arrangement function materials and types", "sibling_family": "", "via": "answer_title", "answer_title": "1. Stern tube — arrangement, function, materials and types", "cross_family": false } ] }, { "qid": "MUM-2026-07-3772-Q001", "text": "status of functions?", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-07-3772", "tray": "new", "candidates": [ { "answer_id": "IMO-CODES-P03-002", "score": 0.524265468120575, "sibling_score": 0.524265468120575, "answer_score": null, "sibling_qid": "MUM-2026-03-0815-Q003", "sibling_text": "which function", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": true }, { "answer_id": "AVR-EXC-B-001", "score": 0.4955756664276123, "sibling_score": 0.4955756664276123, "answer_score": null, "sibling_qid": "KOC-2025-12-1676-Q004", "sibling_text": "explain status avr", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Explain the AVR working principle and control-loop operation.", "cross_family": true }, { "answer_id": "ANCH-C-006", "score": 0.482266366481781, "sibling_score": 0.482266366481781, "answer_score": null, "sibling_qid": "MUM-2026-06-3459-Q001", "sibling_text": "type of ship sail and status of other function", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false } ] }, { "qid": "MUM-2026-07-3772-Q005", "text": "ows working principle?", "family": "MARPOL - Annex I (Oil)", "subtopic": "OWS / 15ppm / ODMCS", "tid": "MUM-2026-07-3772", "tray": "new", "candidates": [ { "answer_id": "OWS-15PPM-004", "score": 0.5340732932090759, "sibling_score": 0.5340732932090759, "answer_score": null, "sibling_qid": "CHE-2026-02-0475-Q004", "sibling_text": "ows o c m device working principle", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "OWS-15PPM-003", "score": 0.5108922123908997, "sibling_score": 0.5108922123908997, "answer_score": null, "sibling_qid": "KOL-2025-03-2766-Q007", "sibling_text": "ocm working principle", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "OWS-15PPM-002", "score": 0.49361637234687805, "sibling_score": 0.49361637234687805, "answer_score": null, "sibling_qid": "KOC-2025-10-0667-Q007", "sibling_text": "what are the regulations for ows", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "MUM-2026-07-3773-Q001", "text": "Type of vessel sailed ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-07-3773", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.841949999332428, "sibling_score": 0.841949999332428, "answer_score": null, "sibling_qid": "CHE-2026-02-0481-Q001", "sibling_text": "type of vessels sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.825204610824585, "sibling_score": 0.825204610824585, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.8038274645805359, "sibling_score": 0.8038274645805359, "answer_score": null, "sibling_qid": "CHE-2026-03-0255-Q001", "sibling_text": "type of vessel and engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "MUM-2026-07-3773-Q003", "text": "Static and dynamic lubrication ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Hydrodynamic Lubrication", "tid": "MUM-2026-07-3773", "tray": "review", "candidates": [ { "answer_id": "HYDRO-LUB-001", "score": 0.8100423216819763, "sibling_score": 0.8100423216819763, "answer_score": 0.5226331770420074, "sibling_qid": "MUM-2026-05-3174-Q008", "sibling_text": "static and dynamic lubrication", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "1. Lubrication, tribology & the types of lubrication", "cross_family": false }, { "answer_id": "CYL-LUB-A-002", "score": 0.724774181842804, "sibling_score": 0.724774181842804, "answer_score": null, "sibling_qid": "MUM-2025-12-1225-Q006", "sibling_text": "load dependent and rpm dependent lubrication", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Feed-rate control — quantity, timing and load/rpm-dependent dosing", "cross_family": false }, { "answer_id": "HYDRO-LUB-002", "score": 0.7166122198104858, "sibling_score": 0.7166122198104858, "answer_score": 0.5325199425220489, "sibling_qid": "MUM-2025-11-2868-Q012", "sibling_text": "hydro dynamic lubrication", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "2. Hydrodynamic lubrication & oil-wedge formation", "cross_family": false } ] }, { "qid": "MUM-2026-07-3774-Q003", "text": "CII ,GIF relation with cii ?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Quality / CCAI", "tid": "MUM-2026-07-3774", "tray": "new", "candidates": [ { "answer_id": "GFI-572-003", "score": 0.5576565265655518, "sibling_score": 0.5576565265655518, "answer_score": 0.29238683730363846, "sibling_qid": "KOL-2026-02-1166-Q007", "sibling_text": "relation between cii and gfi", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Relation between CII and GFI", "cross_family": true }, { "answer_id": "CII-P01-001", "score": 0.4018998146057129, "sibling_score": 0.4018998146057129, "answer_score": null, "sibling_qid": "MUM-2026-01-0722-Q010", "sibling_text": "explain cii", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is CII and what is its purpose?", "cross_family": true }, { "answer_id": "EECS-002", "score": 0.4014846086502075, "sibling_score": 0.4014846086502075, "answer_score": null, "sibling_qid": "CHE-2026-09-3905-Q002", "sibling_text": "eexi and cii only differences", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "02. Differentiate EEXI and CII", "cross_family": true } ] }, { "qid": "MUM-2026-07-3775-Q001", "text": "Ism history why it came in to force , when it came into force, what and when was the last ammendmend to it?", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "MUM-2026-07-3775", "tray": "new", "candidates": [ { "answer_id": "BC-IMSBC-005", "score": 0.5530295968055725, "sibling_score": 0.5530295968055725, "answer_score": 0.37151209414005276, "sibling_qid": "MUM-2026-06-3603-Q001", "sibling_text": "latest amendments in ism and when", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "5. Latest IMSBC Code amendments", "cross_family": false }, { "answer_id": "CII-P01-002", "score": 0.43949419260025024, "sibling_score": 0.43949419260025024, "answer_score": null, "sibling_qid": "CHE-2025-08-0018-Q005", "sibling_text": "cii when it came into force", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "When did CII enter into force, when are ratings issued, and the implementation timings", "cross_family": true }, { "answer_id": "COT-P02-10", "score": 0.4246346652507782, "sibling_score": 0.4246346652507782, "answer_score": null, "sibling_qid": "KOC-2023-03-0169-Q007", "sibling_text": "ig latest amendments", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "State and explain the latest statutory amendments affecting tanker inert-gas systems, including applicability and practical changes on board.", "cross_family": true } ] }, { "qid": "MUM-2026-07-3775-Q002", "text": "how many types of loadline on your ship, how many you know ?", "family": "Load Line Convention", "subtopic": "Load Line Convention", "tid": "MUM-2026-07-3775", "tray": "review", "candidates": [ { "answer_id": "LL-CONV-P06-004", "score": 0.7571176886558533, "sibling_score": 0.7571176886558533, "answer_score": 0.41084051579236985, "sibling_qid": "MUM-2026-04-0896-Q002", "sibling_text": "how many types of loadline on your ship how many you know", "sibling_family": "Load Line Convention", "via": "sibling", "answer_title": "LLC-P06-04 - General load-line requirement, marks, stability link and overloading consequences", "cross_family": false }, { "answer_id": "LL-CONV-P06-001", "score": 0.7198980450630188, "sibling_score": 0.7198980450630188, "answer_score": null, "sibling_qid": "MUM-2026-06-3435-Q008", "sibling_text": "load line types for ships", "sibling_family": "Load Line Convention", "via": "sibling", "answer_title": "LLC-P06-01 - Ship categories and freeboard differences: Type A, Type B and practical ship cases", "cross_family": false }, { "answer_id": "LL-CONV-P06-003", "score": 0.6595672369003296, "sibling_score": 0.6595672369003296, "answer_score": null, "sibling_qid": "MUM-2026-06-3646-Q005", "sibling_text": "load line type on your ship what is standard load line what is subdivision load line and how will identify subdivision load line", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "LLC-P06-03 - Subdivision load line, margin line and probabilistic subdivision", "cross_family": true } ] }, { "qid": "MUM-2026-07-3775-Q003", "text": "seemp full form , tell me about all 3 of them What is CII what is eexi Some method forgot it's short form which is used for developing seemp 3 for a particular ship ?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "EEDI / EEXI / CII / SEEMP", "tid": "MUM-2026-07-3775", "tray": "new", "candidates": [ { "answer_id": "SEEMP-123-B-001", "score": 0.6213270425796509, "sibling_score": 0.6213270425796509, "answer_score": null, "sibling_qid": "KOL-2023-12-0798-Q005", "sibling_text": "i think for this question along with eexi and cii its also imp to mention abt seemp pt 3 which was also adopted during mepc 76 and ships need to have a seemp pt 3 before 1 jan 2023 so they were satisfied", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP Part III — the ship's operational carbon-intensity (CII) plan", "cross_family": false }, { "answer_id": "EEDI-C-001", "score": 0.6042118668556213, "sibling_score": 0.6042118668556213, "answer_score": null, "sibling_qid": "KOL-2022-05-0640-Q003", "sibling_text": "eexi and eedi latest developments what is required by a particular ship regarding the same and cii", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "EEDI versus EEXI — what is the difference?", "cross_family": false }, { "answer_id": "EECS-003", "score": 0.5812520980834961, "sibling_score": 0.5812520980834961, "answer_score": null, "sibling_qid": "CHE-2026-03-0129-Q002", "sibling_text": "what is eexi and cii", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "03. Explain EEXI and CII, including how each is calculated", "cross_family": false } ] }, { "qid": "MUM-2026-07-3775-Q004", "text": "bulbous bow, how it is attached to ship, why it is attached, name of the wave which counteracts?", "family": "Ship Construction & Stability", "subtopic": "DEFINITION", "tid": "MUM-2026-07-3775", "tray": "review", "candidates": [ { "answer_id": "PPS-230-006", "score": 0.7758058905601501, "sibling_score": 0.7758058905601501, "answer_score": null, "sibling_qid": "MUM-2026-04-0896-Q004", "sibling_text": "bulbous bow how it is attached to ship why it is attached name of the wave which counteracts the original bow wave how bulbous bow improves efficiency", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Fore-end / fore-peak structure: draw and describe", "cross_family": false }, { "answer_id": "CHK-RM-001", "score": 0.5760889649391174, "sibling_score": 0.5760889649391174, "answer_score": null, "sibling_qid": "MUM-2026-06-3625-Q012", "sibling_text": "how it is connected to the ship hull", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "What are chocks? Function, types, where fitted and how placed — which have the biggest area, and how does the bedplate connect to the hull?", "cross_family": false }, { "answer_id": "DUS-P5-03", "score": 0.5542934536933899, "sibling_score": 0.5542934536933899, "answer_score": null, "sibling_qid": "MUM-2026-09-3879-Q003", "sibling_text": "different parts of ship keel stern bow explain", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Stern frame construction, cross-section and rudder-axis sketch", "cross_family": false } ] }, { "qid": "MUM-2026-07-3776-Q003", "text": "How to repair breached rudder?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "MUM-2026-07-3776", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.7736778855323792, "sibling_score": 0.7736778855323792, "answer_score": null, "sibling_qid": "MUM-2026-05-3161-Q003", "sibling_text": "how to repair breached rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "WBS-C-006", "score": 0.5217577040195465, "sibling_score": null, "answer_score": 0.5217577040195465, "sibling_qid": "", "sibling_text": "propeller and rudder repair grading the damage and the class approved route grade the damage first minor nicks erosion bent tip vs crack major minor grind and blend out the notch restore a fair section keep balance small cold repair epoxy fillers for minor surface defects only", "sibling_family": "", "via": "answer_title", "answer_title": "Propeller and rudder repair — grading the damage and the Class-approved route", "cross_family": false }, { "answer_id": "CEM-BOX-001", "score": 0.4868325114250183, "sibling_score": null, "answer_score": 0.4868325114250183, "sibling_qid": "", "sibling_text": "temporary repair with a cement box until dry dock take me through it reduce the head first trim or list by ballast isolate the line where the system allows crack drill stop holes at both tips removes the sharp stress raising tip so the crack cannot run", "sibling_family": "", "via": "answer_title", "answer_title": "Temporary repair with a cement box until dry dock—take me through it.", "cross_family": false } ] }, { "qid": "MUM-2026-07-3776-Q004", "text": " How to balance an impeller?", "family": "Pumps - Centrifugal & PD", "subtopic": "Impeller", "tid": "MUM-2026-07-3776", "tray": "review", "candidates": [ { "answer_id": "PCD-P02-06", "score": 0.7535949349403381, "sibling_score": 0.7535949349403381, "answer_score": null, "sibling_qid": "MUM-2026-06-3572-Q004", "sibling_text": "how to balance an impeller", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Checking pump shaft trueness / bend and static-vs-dynamic balancing", "cross_family": false }, { "answer_id": "PUMP-CAS-002", "score": 0.6555900573730469, "sibling_score": 0.6555900573730469, "answer_score": null, "sibling_qid": "MUM-2026-07-3808-Q006", "sibling_text": "centrifugal pump radial thrust how to balance", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "02. Double-volute casing — why it is used, which thrust it balances, and the clearance in question", "cross_family": false }, { "answer_id": "PCD-P02-01", "score": 0.5656298995018005, "sibling_score": 0.5656298995018005, "answer_score": 0.49934078156948086, "sibling_qid": "CHE-2025-08-0214-Q004", "sibling_text": "what is centrifugal pump hydraulic balancing", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Axial thrust in a centrifugal / multistage pump — how it is balanced", "cross_family": false } ] }, { "qid": "MUM-2026-07-3776-Q005", "text": "How to detect air leak in evaporator coil?", "family": "Refrigeration & AC", "subtopic": "Refrigeration Faults / Checks", "tid": "MUM-2026-07-3776", "tray": "review", "candidates": [ { "answer_id": "REFR-FLT-003", "score": 0.7947999835014343, "sibling_score": 0.7947999835014343, "answer_score": 0.5163516581058502, "sibling_qid": "MUM-2026-07-3731-Q005", "sibling_text": "how to detect air leak in evaporator coil", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Refrigerant leakage or loss: detect, confirm, respond, and the record-keeping", "cross_family": false }, { "answer_id": "LO-CLR-001", "score": 0.7555788159370422, "sibling_score": 0.7555788159370422, "answer_score": null, "sibling_qid": "MUM-2026-06-3598-Q010", "sibling_text": "leak in the evaporator coil of ac how to check", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "How do you detect a leaking AE / DG lube-oil cooler, and locate the tube?", "cross_family": false }, { "answer_id": "AIR-REF-001", "score": 0.6925178170204163, "sibling_score": 0.6925178170204163, "answer_score": null, "sibling_qid": "MUM-2026-07-3671-Q007", "sibling_text": "how to detect air in refrigeration system", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "1. Indications that air is present in a refrigeration system", "cross_family": false } ] }, { "qid": "MUM-2026-07-3776-Q007", "text": " How to set boiler safety valve?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2026-07-3776", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-001", "score": 0.8255787491798401, "sibling_score": 0.8255787491798401, "answer_score": null, "sibling_qid": "KOC-2026-05-0003-Q005", "sibling_text": "boiler safety valve setting procedure", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.7959985136985779, "sibling_score": 0.7959985136985779, "answer_score": null, "sibling_qid": "MUM-2026-03-2935-Q013", "sibling_text": "boiler safety valve setting in presence of surveyor after survey", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.7948963642120361, "sibling_score": 0.7948963642120361, "answer_score": null, "sibling_qid": "KOC-2026-05-0034-Q010", "sibling_text": "boiler safety valve types and how safety valve is set complete procedures", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "MUM-2026-07-3776-Q008", "text": " How direction control valve works in hydraulic system?", "family": "Workshop & Welding", "subtopic": "Hydraulic Pipe", "tid": "MUM-2026-07-3776", "tray": "review", "candidates": [ { "answer_id": "CBV-001", "score": 0.7845063209533691, "sibling_score": 0.7845063209533691, "answer_score": null, "sibling_qid": "MUM-2026-06-3572-Q008", "sibling_text": "how direction control valve works in hydraulic system", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "What is a counter-balance valve, why fitted, and why needed even with a directional-control valve?", "cross_family": false }, { "answer_id": "HYD-VLV-005", "score": 0.6138139963150024, "sibling_score": 0.6138139963150024, "answer_score": 0.5475431203842163, "sibling_qid": "KOL-2019-04-2280-Q005", "sibling_text": "he showed few symbols of direction control valve and told me to explain", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Reading the Hydraulic Block: P, T, A, B and the Directional-Valve Symbol", "cross_family": true }, { "answer_id": "RVSG-213-002", "score": 0.5848597288131714, "sibling_score": 0.5848597288131714, "answer_score": 0.549655756354332, "sibling_qid": "KOL-2016-09-1238-Q004", "sibling_text": "rotary vane steering gear how reversal in direction takes place types of pump used construction of pump", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Working principle, actuation, reversal, movement angle & number of vanes", "cross_family": true } ] }, { "qid": "MUM-2026-07-3777-Q004", "text": "Zener barrier?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Zener / Diode / Rectifier", "tid": "MUM-2026-07-3777", "tray": "review", "candidates": [ { "answer_id": "EPC-P02-03", "score": 0.7392571568489075, "sibling_score": 0.7392571568489075, "answer_score": 0.43752944767475127, "sibling_qid": "CHE-2026-02-0333-Q002", "sibling_text": "zener barrier", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Where is a zener diode used on board and why — voltage regulator, AVR, clipper — and explain one application in detail.", "cross_family": false }, { "answer_id": "EPC-P02-01", "score": 0.7387890815734863, "sibling_score": 0.7387890815734863, "answer_score": 0.47238284945487974, "sibling_qid": "MUM-2026-05-3272-Q003", "sibling_text": "zener barrier", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a zener diode? Draw its symbol, explain its working principle, and draw and explain its characteristic curve including the zener (breakdown) voltage.", "cross_family": false }, { "answer_id": "HAZ-EX-B-001", "score": 0.6714563369750977, "sibling_score": 0.6714563369750977, "answer_score": null, "sibling_qid": "CHE-2026-03-0358-Q005", "sibling_text": "zener barrier working in intrinsically safe", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Intrinsically safe (Ex i) equipment — what it is, how it works, where it is used, how you identify it", "cross_family": false } ] }, { "qid": "MUM-2026-07-3779-Q008", "text": "thyristor and transistor ?", "family": "", "subtopic": "", "tid": "MUM-2026-07-3779", "tray": "review", "candidates": [ { "answer_id": "SCR-306-B-001", "score": 0.7624812126159668, "sibling_score": 0.7624812126159668, "answer_score": 0.5430722296237945, "sibling_qid": "MUM-2025-09-1682-Q002", "sibling_text": "thyristor transistor", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Thyristor / SCR vs other semiconductor devices", "cross_family": false }, { "answer_id": "SCR-306-A-001", "score": 0.7030481100082397, "sibling_score": 0.7030481100082397, "answer_score": 0.5103655099868775, "sibling_qid": "KOL-2025-01-2760-Q005", "sibling_text": "thyristors", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What an SCR is and how it works", "cross_family": false }, { "answer_id": "SCR-306-A-006", "score": 0.5358338713645935, "sibling_score": null, "answer_score": 0.5358338713645935, "sibling_qid": "", "sibling_text": "types of thyristor scr scr standard unidirectional gate turn on only no gate turn off gto gate turn off turned off by a negative gate pulse suits choppers and inverters", "sibling_family": "", "via": "answer_title", "answer_title": "Types of thyristor / SCR", "cross_family": false } ] }, { "qid": "MUM-2026-07-3780-Q005", "text": "If single earth fault on what will be your action?", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator Protection", "tid": "MUM-2026-07-3780", "tray": "new", "candidates": [ { "answer_id": "EF-DET-P01-003", "score": 0.6201197504997253, "sibling_score": 0.6201197504997253, "answer_score": null, "sibling_qid": "NOI-2026-09-0002-Q007", "sibling_text": "earth fault 440v what to do", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Tracing and locating an earth fault or low-insulation fault on a 440V / 220V / deck circuit", "cross_family": false }, { "answer_id": "EF-DET-P01-002", "score": 0.5996467471122742, "sibling_score": 0.5996467471122742, "answer_score": null, "sibling_qid": "MUM-2026-06-3615-Q001", "sibling_text": "during watch earth fault alarm raise action", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "How an earth fault is detected and indicated on board", "cross_family": true }, { "answer_id": "EF-DET-P01-001", "score": 0.5751532316207886, "sibling_score": 0.5751532316207886, "answer_score": null, "sibling_qid": "MUM-2026-09-3995-Q003", "sibling_text": "earth fault how it is indicated", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Earth fault / earth leakage — and how it differs from short circuit and open circuit", "cross_family": false } ] }, { "qid": "MUM-2026-07-3781-Q002", "text": "Open circuit test In motor?", "family": "Electrical - Motors & Starters", "subtopic": "IR Test / Insulation Resistance", "tid": "MUM-2026-07-3781", "tray": "review", "candidates": [ { "answer_id": "IRT-C-014", "score": 0.8020681738853455, "sibling_score": 0.8020681738853455, "answer_score": 0.5436169683933257, "sibling_qid": "MUM-2024-07-1441-Q001", "sibling_text": "motor open circuit test", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Detecting winding faults — open, short & continuity", "cross_family": false }, { "answer_id": "CONT-317-002", "score": 0.7763595581054688, "sibling_score": 0.7763595581054688, "answer_score": 0.5698350042104721, "sibling_qid": "MUM-2026-06-3615-Q003", "sibling_text": "open circuit how to check in motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Checking a winding for open-circuit and short-circuit faults", "cross_family": false }, { "answer_id": "IR-TEST-B-010", "score": 0.7219531536102295, "sibling_score": 0.7219531536102295, "answer_score": 0.5399081647396088, "sibling_qid": "MUM-2024-02-1425-Q001", "sibling_text": "how you check open ckt fault of motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Open-circuit / continuity check, and the multimeter-vs-megger trap", "cross_family": false } ] }, { "qid": "MUM-2026-07-3782-Q004", "text": "Purifier vertical and horizontal shaft alignment ?", "family": "Purifier & Centrifuges", "subtopic": "Purifier Operation / Bowl", "tid": "MUM-2026-07-3782", "tray": "review", "candidates": [ { "answer_id": "PURIF-BOWL-P02-003", "score": 0.8082816004753113, "sibling_score": 0.8082816004753113, "answer_score": null, "sibling_qid": "KOL-2023-04-3604-Q001", "sibling_text": "purifier vertical shaft alignment and checks how to ensure correct height of vertical shaft", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Vertical shaft, bowl height, bearings & load support — checks, adjustment, overhaul, renewal", "cross_family": false }, { "answer_id": "PURIF-172-001", "score": 0.647357702255249, "sibling_score": 0.647357702255249, "answer_score": null, "sibling_qid": "MUM-2025-05-2292-Q002", "sibling_text": "what is purpose of sheer pin in horizontal shaft of the purifier cant recollect more now", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Purifier not picking up speed — drive, clutch, brake, shear pin", "cross_family": false }, { "answer_id": "PUR-DSL-002", "score": 0.6412801146507263, "sibling_score": 0.6412801146507263, "answer_score": null, "sibling_qid": "MUM-2026-03-2599-Q005", "sibling_text": "purifier vertical height", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Purifier overflow after desludging — causes, and checking or adjusting bowl height", "cross_family": false } ] }, { "qid": "MUM-2026-07-3783-Q001", "text": "Developments in propeller ?", "family": "General Marine Engineering", "subtopic": "Shafting / Propeller / CPP", "tid": "MUM-2026-07-3783", "tray": "review", "candidates": [ { "answer_id": "SHAFT-CPP-005", "score": 0.732711672782898, "sibling_score": 0.732711672782898, "answer_score": 0.5225373715162277, "sibling_qid": "MUM-2022-12-0074-Q008", "sibling_text": "latest developments in propeller", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "5. Propeller types, design criteria & latest developments", "cross_family": false }, { "answer_id": "SPR-STERN-006", "score": 0.6497422456741333, "sibling_score": 0.6497422456741333, "answer_score": 0.47431876957416536, "sibling_qid": "KOC-2021-07-0013-Q009", "sibling_text": "latest advancement in propeller", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Propeller types & special propulsors", "cross_family": true }, { "answer_id": "SHAFT-CPP-007", "score": 0.6088131070137024, "sibling_score": 0.6088131070137024, "answer_score": 0.43619308471679685, "sibling_qid": "MUM-2023-09-2747-Q013", "sibling_text": "propellar damage fit new one steps", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "7. Propeller damage, replacement & new-propeller fitting", "cross_family": false } ] }, { "qid": "MUM-2026-07-3783-Q002", "text": "Counter vane type propeller ?", "family": "General Marine Engineering", "subtopic": "Shafting / Propeller / CPP", "tid": "MUM-2026-07-3783", "tray": "review", "candidates": [ { "answer_id": "SHAFT-CPP-005", "score": 0.6516273617744446, "sibling_score": 0.6516273617744446, "answer_score": 0.4688866317272186, "sibling_qid": "KOL-2026-07-4262-Q005", "sibling_text": "contra propeller", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "5. Propeller types, design criteria & latest developments", "cross_family": false }, { "answer_id": "SHAFT-CPP-003", "score": 0.6264892220497131, "sibling_score": 0.6264892220497131, "answer_score": null, "sibling_qid": "KOL-2024-12-0897-Q006", "sibling_text": "cpl propeller", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "3. CPP — working, construction, oil channel, feedback & emergency", "cross_family": false }, { "answer_id": "SHAFT-CPP-001", "score": 0.6218698620796204, "sibling_score": 0.6218698620796204, "answer_score": null, "sibling_qid": "MUM-2026-02-2928-Q003", "sibling_text": "propeller curve 4 catfines", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "1. Propeller curve & load diagram", "cross_family": false } ] }, { "qid": "MUM-2026-07-3783-Q003", "text": "Vacuum pump arrangement ?", "family": "Cargo Ops - Tankers", "subtopic": "Vacuum Condenser", "tid": "MUM-2026-07-3783", "tray": "review", "candidates": [ { "answer_id": "VAC-COND-001", "score": 0.6605901122093201, "sibling_score": 0.6605901122093201, "answer_score": null, "sibling_qid": "KOL-2018-06-0182-Q008", "sibling_text": "how vacuum is created in vacuum pump", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Purpose, working and thermodynamic principle of the vacuum condenser", "cross_family": false }, { "answer_id": "PPS-622-003", "score": 0.6450916528701782, "sibling_score": 0.6450916528701782, "answer_score": null, "sibling_qid": "KOC-2026-02-2005-Q005", "sibling_text": "vaccum pump drawing", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Explain the working of the water-ring / liquid-ring primer and its diagram. What type of vacuum pump is used?", "cross_family": true }, { "answer_id": "PR-SAFE-A-003", "score": 0.6443076729774475, "sibling_score": 0.6443076729774475, "answer_score": null, "sibling_qid": "MUM-2024-09-0205-Q003", "sibling_text": "ventilation in pump room from where it take suction", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Pump-room ventilation requirements and interlocks", "cross_family": false } ] }, { "qid": "MUM-2026-07-3783-Q005", "text": "type of ship ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-07-3783", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.837036669254303, "sibling_score": 0.837036669254303, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8018087148666382, "sibling_score": 0.8018087148666382, "answer_score": 0.5473707109689713, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8005447387695312, "sibling_score": 0.8005447387695312, "answer_score": 0.5217237085103988, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2026-07-3783-Q009", "text": "maintenance of chain locker?", "family": "Auxiliary Equipment", "subtopic": "Anchor / Anchor Chain", "tid": "MUM-2026-07-3783", "tray": "review", "candidates": [ { "answer_id": "ANCHR-B-004", "score": 0.7634361386299133, "sibling_score": 0.7634361386299133, "answer_score": null, "sibling_qid": "MUM-2026-05-3080-Q004", "sibling_text": "maintenance of chain locker", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Chain locker, spurling pipe & bitter-end securing", "cross_family": false }, { "answer_id": "CHAIN-TENS-A-004", "score": 0.6169201731681824, "sibling_score": 0.6169201731681824, "answer_score": 0.4056316286325455, "sibling_qid": "MUM-2026-07-3842-Q005", "sibling_text": "chain locker inspection what all checks", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Chain-Case / Chain-Drive Inspection", "cross_family": false }, { "answer_id": "ANCH-C-003", "score": 0.5967281460762024, "sibling_score": 0.5967281460762024, "answer_score": 0.41808482706546785, "sibling_qid": "KOL-2025-11-3886-Q003", "sibling_text": "chain tightening procedure", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Chain tightening & relieving strain", "cross_family": false } ] }, { "qid": "MUM-2026-07-3784-Q007", "text": "How to purge hydraulic system ?", "family": "Cargo Ops - Tankers", "subtopic": "Cargo Pump (Framo / Eductor)", "tid": "MUM-2026-07-3784", "tray": "review", "candidates": [ { "answer_id": "CPFE-583-007", "score": 0.7997990250587463, "sibling_score": 0.7997990250587463, "answer_score": 0.5355832368135452, "sibling_qid": "MUM-2026-05-3082-Q007", "sibling_text": "how to purge hydraulic system", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Pressure not building — and purging the hydraulic system", "cross_family": false }, { "answer_id": "HYD-JACK-005", "score": 0.6697604060173035, "sibling_score": 0.6697604060173035, "answer_score": 0.5306009948253632, "sibling_qid": "KOL-2024-12-3732-Q007", "sibling_text": "how to remove cylinder liner how to purge hydraulic jack and how long will you purge", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Purging air from a hydraulic jack or tool line before use", "cross_family": true }, { "answer_id": "CPFE-583-012", "score": 0.6423670649528503, "sibling_score": 0.6423670649528503, "answer_score": null, "sibling_qid": "MUM-2026-06-3490-Q010", "sibling_text": "cargo pump purging", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Seal arrangement, cofferdam, and how leakage is detected", "cross_family": false } ] }, { "qid": "MUM-2026-07-3785-Q001", "text": "Function of wear ring in centrifugal pump?", "family": "Pumps - Centrifugal & PD", "subtopic": "Wear Ring", "tid": "MUM-2026-07-3785", "tray": "review", "candidates": [ { "answer_id": "WRG-001", "score": 0.7796369194984436, "sibling_score": 0.7796369194984436, "answer_score": 0.5728763610124588, "sibling_qid": "CHE-2021-07-0388-Q004", "sibling_text": "centrifugal pump wear ring function where it is present hw many", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "What the wear ring is for, where it sits, how many, which part rotates — and why a sleeve is used", "cross_family": false }, { "answer_id": "WRG-002", "score": 0.7270463109016418, "sibling_score": 0.7270463109016418, "answer_score": 0.4999931812286377, "sibling_qid": "CHE-2026-03-0489-Q006", "sibling_text": "centrifugal pump wear ring clearance is more no spare on board how to use the old wear ring", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Wear-ring and impeller-to-casing clearance — how to know it is good, and what happens when it opens up or closes in", "cross_family": false }, { "answer_id": "WRG-004", "score": 0.7249155640602112, "sibling_score": 0.7249155640602112, "answer_score": 0.5419841706752777, "sibling_qid": "MUM-2026-05-3229-Q002", "sibling_text": "centrifugal pump wear ring worn out frequently reason", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Why wear rings wear, why they wear out frequently, and reusing an over-clearance ring with no spare on board", "cross_family": false } ] }, { "qid": "MUM-2026-07-3785-Q006", "text": "Balancing of governor?", "family": "Automation & Controls", "subtopic": "Governor (Mechanical / Electronic)", "tid": "MUM-2026-07-3785", "tray": "review", "candidates": [ { "answer_id": "GOV-082-P01-016", "score": 0.7678785920143127, "sibling_score": 0.7678785920143127, "answer_score": 0.4512462556362152, "sibling_qid": "MUM-2026-05-3000-Q006", "sibling_text": "balancing of governor", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Governor balancing and flyweight (\"metal\") load", "cross_family": false }, { "answer_id": "DROOP-003", "score": 0.5572177767753601, "sibling_score": 0.5572177767753601, "answer_score": null, "sibling_qid": "KOL-2018-11-2241-Q004", "sibling_text": "what governer is doing in load sharing", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Load sharing — how droop divides kW in parallel", "cross_family": false }, { "answer_id": "GOV-P02-002", "score": 0.54481440782547, "sibling_score": 0.54481440782547, "answer_score": null, "sibling_qid": "MUM-2026-05-3194-Q007", "sibling_text": "components of governor", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Electronic governor — components & parts", "cross_family": false } ] }, { "qid": "MUM-2026-07-3785-Q008", "text": "types of safety valve ?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2026-07-3785", "tray": "review", "candidates": [ { "answer_id": "BLR-SURV-P02-001", "score": 0.8208295702934265, "sibling_score": 0.8208295702934265, "answer_score": null, "sibling_qid": "MUM-2026-09-3885-Q006", "sibling_text": "all types of safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ACRV-005", "score": 0.7909573912620544, "sibling_score": 0.7909573912620544, "answer_score": 0.5663230299949645, "sibling_qid": "MUM-2026-06-3617-Q007", "sibling_text": "safety valve and relief valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Difference between a safety valve and a relief valve", "cross_family": false }, { "answer_id": "SCAV-323-P02-008", "score": 0.5370117068290711, "sibling_score": null, "answer_score": 0.5370117068290711, "sibling_qid": "", "sibling_text": "safeties and relief arrangements for the scavenge space hazard oily deposits blow past air scavenge fire explosion relief valve door fitted per the maker s design scavenge air receiver or cylinder section spring loaded cup spring lifts at permitted overpressure self closing to prevent air re entry", "sibling_family": "", "via": "answer_title", "answer_title": "Safeties and relief arrangements for the scavenge space", "cross_family": false } ] }, { "qid": "MUM-2026-07-3785-Q009", "text": "purifier vertical height how to measure? ", "family": "Purifier & Centrifuges", "subtopic": "Desludging", "tid": "MUM-2026-07-3785", "tray": "review", "candidates": [ { "answer_id": "PUR-DSL-002", "score": 0.838833749294281, "sibling_score": 0.838833749294281, "answer_score": null, "sibling_qid": "MUM-2026-05-3000-Q009", "sibling_text": "purifier vertical height how to measure", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Purifier overflow after desludging — causes, and checking or adjusting bowl height", "cross_family": false }, { "answer_id": "PURIF-BOWL-P02-003", "score": 0.8064252138137817, "sibling_score": 0.8064252138137817, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q009", "sibling_text": "purifier vertical height measurement reason", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Vertical shaft, bowl height, bearings & load support — checks, adjustment, overhaul, renewal", "cross_family": false }, { "answer_id": "PUR-OPS-P01-002", "score": 0.7386514544487, "sibling_score": 0.7386514544487, "answer_score": null, "sibling_qid": "CHE-2026-03-0494-Q001", "sibling_text": "purifier overhaul vertical height what you will check", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Purifier — principle, working, and how the self-cleaning bowl closes", "cross_family": false } ] }, { "qid": "MUM-2026-07-3786-Q001", "text": "Type of ship First attempt", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-07-3786", "tray": "review", "candidates": [ { "answer_id": "LLST-AB-001", "score": 0.749087929725647, "sibling_score": 0.749087929725647, "answer_score": 0.4278908848762512, "sibling_qid": "CHE-2026-05-0614-Q001", "sibling_text": "start from type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.6809864044189453, "sibling_score": 0.6809864044189453, "answer_score": null, "sibling_qid": "MUM-2026-02-1280-Q001", "sibling_text": "type of ship done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.6431476473808289, "sibling_score": 0.6431476473808289, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false } ] }, { "qid": "MUM-2026-07-3786-Q006", "text": "What is the arrangement for the exhaust manifold ?", "family": "2-Stroke - Exhaust, Valve & Starting Air", "subtopic": "Exhaust Valve & Exhaust System", "tid": "MUM-2026-07-3786", "tray": "review", "candidates": [ { "answer_id": "EXHV-297-007", "score": 0.753474235534668, "sibling_score": 0.753474235534668, "answer_score": 0.534712678194046, "sibling_qid": "MUM-2026-06-3420-Q004", "sibling_text": "exhaust manifold especial arrangement for grouping of suction from each cylinder in me", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust manifold / gas receiver — construction, joints, inspection & temperature locations", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.6221857666969299, "sibling_score": 0.6221857666969299, "answer_score": null, "sibling_qid": "KOL-2021-09-1625-Q001", "sibling_text": "exhaust valve opening closing arrangements", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "EXV-P02-001", "score": 0.6105578541755676, "sibling_score": 0.6105578541755676, "answer_score": null, "sibling_qid": "KOC-2023-01-1801-Q001", "sibling_text": "1 exhaust vv overhaul", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve overhaul & dismantling — procedure and precautions", "cross_family": false } ] }, { "qid": "MUM-2026-07-3787-Q004", "text": "Latest amendment in cargo hold venting arrangement ?", "family": "Cargo Ops - Containers", "subtopic": "CARGO HOLD", "tid": "MUM-2026-07-3787", "tray": "review", "candidates": [ { "answer_id": "MAST-PVA-005", "score": 0.7457141876220703, "sibling_score": 0.7457141876220703, "answer_score": null, "sibling_qid": "KOL-2019-02-0260-Q003", "sibling_text": "latest amendment regarding cargo tank venting arrangments", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "P/V valve — testing and calibration", "cross_family": true }, { "answer_id": "CONT-FIRE-001", "score": 0.5801599025726318, "sibling_score": 0.5801599025726318, "answer_score": null, "sibling_qid": "CHE-2026-01-0101-Q005", "sibling_text": "latest amendment on fire safety for container ships some more", "sibling_family": "Cargo Ops - Containers", "via": "sibling", "answer_title": "What are the latest requirements, amendments and advancements for fire safety on container ships?", "cross_family": false }, { "answer_id": "MAST-PVA-001", "score": 0.5611519813537598, "sibling_score": 0.5611519813537598, "answer_score": null, "sibling_qid": "KOL-2022-07-0649-Q006", "sibling_text": "venting arrangements as per imo new regulations", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Cargo tank venting — primary & secondary means and the regulation", "cross_family": true } ] }, { "qid": "MUM-2026-07-3787-Q005", "text": "Ism code 10.3 ?", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "MUM-2026-07-3787", "tray": "review", "candidates": [ { "answer_id": "ISM-ELEM-003", "score": 0.6910654902458191, "sibling_score": 0.6910654902458191, "answer_score": 0.32433068454265596, "sibling_qid": "KOC-2026-02-0804-Q014", "sibling_text": "what is ism code 10", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": false }, { "answer_id": "ISM-ELEM-002", "score": 0.579154908657074, "sibling_score": 0.579154908657074, "answer_score": 0.3118573725223541, "sibling_qid": "MUM-2026-06-3653-Q001", "sibling_text": "ism code", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the ISM Code?", "cross_family": false }, { "answer_id": "CREQ-542-001", "score": 0.3230980306863785, "sibling_score": null, "answer_score": 0.3230980306863785, "sibling_qid": "", "sibling_text": "under which code is critical equipment addressed onboard ism code made mandatory by solas chapter ix the governing instrument section 10 maintenance of the ship and equipment paragraph 10 3 is the exact reference", "sibling_family": "", "via": "answer_title", "answer_title": "Under which code is critical equipment addressed onboard?", "cross_family": false } ] }, { "qid": "MUM-2026-07-3787-Q009", "text": "Reason for spark in carbon brush ?", "family": "2-Stroke - Operations & Casualty", "subtopic": "Smoke from Funnel", "tid": "MUM-2026-07-3787", "tray": "new", "candidates": [ { "answer_id": "SMK-FUNL-BF01-004", "score": 0.5279349684715271, "sibling_score": 0.5279349684715271, "answer_score": 0.37589234709739683, "sibling_qid": "CHE-2026-09-3929-Q001", "sibling_text": "action spark in funnel ege fire", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "There are sparks from the funnel on arrival in port — what is the reason and your action?", "cross_family": false }, { "answer_id": "SHFT-ERTH-300-003", "score": 0.5167951583862305, "sibling_score": 0.5167951583862305, "answer_score": null, "sibling_qid": "KOL-2025-09-2849-Q004", "sibling_text": "why spark forms only in bearing", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Shaft potential, current and sparking", "cross_family": true }, { "answer_id": "IMSBC-BULK-001", "score": 0.5163860321044922, "sibling_score": 0.5163860321044922, "answer_score": null, "sibling_qid": "KOL-2021-07-0519-Q001", "sibling_text": "spontaneous combustion i said any hydrocarbon getting ignited randomly then he said any better explanation than this", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Coal: spontaneous combustion, self-heating and methane", "cross_family": true } ] }, { "qid": "MUM-2026-07-3788-Q001", "text": "General / Engine Specific", "family": "IMO Structure & Conventions", "subtopic": "IMO / Committees / Codes", "tid": "MUM-2026-07-3788", "tray": "new", "candidates": [ { "answer_id": "ENG-NOM-006", "score": 0.6178472638130188, "sibling_score": 0.6178472638130188, "answer_score": null, "sibling_qid": "CHE-2026-09-3913-Q001", "sibling_text": "main engine specification", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Short-form asks: SMC-C, LMC, and ME vs MC quickly", "cross_family": true }, { "answer_id": "ETP-344-P03-001", "score": 0.6085231304168701, "sibling_score": 0.6085231304168701, "answer_score": null, "sibling_qid": "KOL-2026-03-2048-Q001", "sibling_text": "type of engine done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": true }, { "answer_id": "MCC-MEB-P02-003", "score": 0.6049977540969849, "sibling_score": 0.6049977540969849, "answer_score": null, "sibling_qid": "MUM-2023-08-1053-Q001", "sibling_text": "me engines basics", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Conventional MC / MC-C versus electronic ME — the practical operating differences", "cross_family": true } ] }, { "qid": "MUM-2026-07-3788-Q005", "text": "Effect of low scavenge air temperature in a main engine ?", "family": "Heat Exchangers & Coolers", "subtopic": "Air Cooler / JCW Cooler", "tid": "MUM-2026-07-3788", "tray": "new", "candidates": [ { "answer_id": "SCAV-323-P02-003", "score": 0.5734278559684753, "sibling_score": 0.5734278559684753, "answer_score": null, "sibling_qid": "KOC-2024-12-0930-Q003", "sibling_text": "why air cooler required effect on scavenging efficiency", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Scavenging efficiency: meaning, significance and measurement", "cross_family": true }, { "answer_id": "ACJCW-002", "score": 0.5124879479408264, "sibling_score": 0.5124879479408264, "answer_score": null, "sibling_qid": "KOL-2023-02-1726-Q003", "sibling_text": "main engine air cooler outlet temperature how maintained", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "Maintaining air-cooler outlet temperature and which valve to throttle", "cross_family": false }, { "answer_id": "AE-HOT-BLOW-004", "score": 0.5055286884307861, "sibling_score": 0.5055286884307861, "answer_score": 0.4664734065532684, "sibling_qid": "MUM-2025-12-2879-Q006", "sibling_text": "rating of the ae running at low load but exhaust temp are high reason", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Auxiliary engine at low load but exhaust temperatures high — reasons", "cross_family": true } ] }, { "qid": "MUM-2026-07-3788-Q009", "text": "Why is steel heated to the upper critical temperature during annealing?", "family": "Refrigeration & AC", "subtopic": "Critical Temp", "tid": "MUM-2026-07-3788", "tray": "review", "candidates": [ { "answer_id": "HT-A-002", "score": 0.7082161903381348, "sibling_score": 0.7082161903381348, "answer_score": 0.5332177877426147, "sibling_qid": "MUM-2025-05-2288-Q004", "sibling_text": "annealing explain in detail what happens if you heat steel above upper critical temperature", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Annealing: process, cooling control, and the reused copper washer", "cross_family": true }, { "answer_id": "CTMP-575-001", "score": 0.5799896717071533, "sibling_score": 0.5799896717071533, "answer_score": null, "sibling_qid": "MUM-2026-03-2642-Q016", "sibling_text": "why above critical temp", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "What is the critical temperature of a refrigerant, and why is it important in refrigeration?", "cross_family": false }, { "answer_id": "HT-A-001", "score": 0.5312083959579468, "sibling_score": 0.5312083959579468, "answer_score": 0.5098863303661346, "sibling_qid": "MUM-2025-12-2522-Q001", "sibling_text": "heat treatment process of steel", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Heat treatment: what it is, the main methods, and why it is done", "cross_family": true } ] }, { "qid": "MUM-2026-07-3789-Q001", "text": "Fuel leg ?", "family": "Fuel Oil System", "subtopic": "Service / Settling Tank", "tid": "MUM-2026-07-3789", "tray": "new", "candidates": [ { "answer_id": "ALT-FUEL-007", "score": 0.5713856816291809, "sibling_score": 0.5713856816291809, "answer_score": null, "sibling_qid": "MUM-2026-01-0674-Q004", "sibling_text": "e fuel", "sibling_family": "Fuel Oil System", "via": "sibling", "answer_title": "What is e-fuel in the context of marine decarbonisation?", "cross_family": false }, { "answer_id": "FCL-P01-001", "score": 0.5491862893104553, "sibling_score": 0.5491862893104553, "answer_score": null, "sibling_qid": "MUM-2026-02-1258-Q004", "sibling_text": "fuel pp lead", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel pump lead and fuel cam lead: meaning, measurement, significance and adjustment", "cross_family": true }, { "answer_id": "ALT-FUEL-001", "score": 0.5267773866653442, "sibling_score": 0.5267773866653442, "answer_score": null, "sibling_qid": "MUM-2025-07-1150-Q016", "sibling_text": "fuels used", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What alternative or latest marine fuels are used for decarbonisation?", "cross_family": true } ] }, { "qid": "MUM-2026-07-3789-Q002", "text": "Ballast Water Treatment System alarms and troubleshooting ?", "family": "Other Conventions", "subtopic": "Ballast Water Convention / BWM / BWMS", "tid": "MUM-2026-07-3789", "tray": "review", "candidates": [ { "answer_id": "BWMS-C-005", "score": 0.668714702129364, "sibling_score": 0.668714702129364, "answer_score": 0.5262399435043335, "sibling_qid": "KOL-2017-09-0116-Q002", "sibling_text": "ballast water management equipment and it s maintenance 2 sewage treatment plant checks maintenance and bod chlorine tablets addition sludge content check", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Maintenance, operational checks, installation factors & the engineer's role", "cross_family": false }, { "answer_id": "BWM-D1D2-P02-001", "score": 0.6627020835876465, "sibling_score": 0.6627020835876465, "answer_score": null, "sibling_qid": "KOL-2022-07-4010-Q006", "sibling_text": "ballast water exchange need to be carried out both pump failed due to lack of spare what to do", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Regulation D-1 — ballast water exchange standard and the accepted methods", "cross_family": false }, { "answer_id": "TNK-SAFE-BF26-004", "score": 0.6380659341812134, "sibling_score": 0.6380659341812134, "answer_score": null, "sibling_qid": "KOC-2023-03-0163-Q003", "sibling_text": "what action to take it hc detected in ballast tank", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What safeties are fitted in the ballast tank of a tanker, and what do you do if hydrocarbon is detected?", "cross_family": true } ] }, { "qid": "MUM-2026-07-3789-Q003", "text": "Thermal expansion of a boiler ?", "family": "Boilers - Construction & Components", "subtopic": "", "tid": "MUM-2026-07-3789", "tray": "review", "candidates": [ { "answer_id": "BLR-TUBE-P01-003", "score": 0.7713443636894226, "sibling_score": 0.7713443636894226, "answer_score": 0.5672640115022659, "sibling_qid": "CHE-2026-05-0613-Q004", "sibling_text": "expansion arrangement boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "02. Thermal expansion arrangements for boiler tubes", "cross_family": false }, { "answer_id": "OGEE-RING-001", "score": 0.7120788097381592, "sibling_score": 0.7120788097381592, "answer_score": null, "sibling_qid": "KOL-2025-06-4057-Q003", "sibling_text": "how is thermal expansion in small vertical water tube boiler taken care of ogee ring what are and why are stay tubes provided", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "The ogee ring: what it is, where it sits, its purpose, and how it's formed and connected", "cross_family": false }, { "answer_id": "BLR-DRUM-004", "score": 0.6017756342887878, "sibling_score": null, "answer_score": 0.6017756342887878, "sibling_qid": "", "sibling_text": "boiler drum expansion arrangements boiler heats from cold to operating temperature drums and tubes expand they must expand freely or the structure cracks principle one fixed anchored point the rest free to slide", "sibling_family": "", "via": "answer_title", "answer_title": "Boiler-drum expansion arrangements", "cross_family": false } ] }, { "qid": "MUM-2026-07-3789-Q005", "text": "Torque limiter ?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Injection System", "tid": "MUM-2026-07-3789", "tray": "new", "candidates": [ { "answer_id": "IM-TRQ-P02-001", "score": 0.6110149621963501, "sibling_score": 0.6110149621963501, "answer_score": 0.41101201325654985, "sibling_qid": "KOL-2024-08-2724-Q001", "sibling_text": "max torque condition for im", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Factors affecting torque; conditions for maximum torque", "cross_family": true }, { "answer_id": "ENG-DERATE-003", "score": 0.6014889478683472, "sibling_score": 0.6014889478683472, "answer_score": 0.4291989266872406, "sibling_qid": "MUM-2026-03-2952-Q012", "sibling_text": "what is torque rich conditions what are the limits", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What limits or restrictions apply after derating, and why is performance taken at ~80–85% MCR?", "cross_family": true }, { "answer_id": "ENG-DERATE-005", "score": 0.5599380731582642, "sibling_score": 0.5599380731582642, "answer_score": null, "sibling_qid": "MUM-2025-09-1186-Q006", "sibling_text": "type of limiter on engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What are engine limiters in relation to derating — EPL and ShaPoLi?", "cross_family": true } ] }, { "qid": "MUM-2026-07-3789-Q006", "text": "Strain gauge ?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft Deflection", "tid": "MUM-2026-07-3789", "tray": "new", "candidates": [ { "answer_id": "RES-PROP-P02-004", "score": 0.567115306854248, "sibling_score": 0.567115306854248, "answer_score": null, "sibling_qid": "KOC-2025-11-2083-Q004", "sibling_text": "torsional meter working", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Ship power definitions and estimation — effective, delivered, shaft and indicated power", "cross_family": true }, { "answer_id": "TPL-SENS-A-002", "score": 0.5468626022338867, "sibling_score": 0.5468626022338867, "answer_score": null, "sibling_qid": "MUM-2024-06-1433-Q003", "sibling_text": "pressure transducer", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Pressure transmitter / transducer / switch working and calibration", "cross_family": true }, { "answer_id": "STRSTR-298-005", "score": 0.5428528785705566, "sibling_score": 0.5428528785705566, "answer_score": 0.38876071125268935, "sibling_qid": "KOL-2026-04-2054-Q005", "sibling_text": "stress on y and strain on x axis", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Why is stress plotted on the y-axis and strain on the x-axis?", "cross_family": true } ] }, { "qid": "MUM-2026-07-3790-Q001", "text": "What type of ship sailed ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-07-3790", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8125002980232239, "sibling_score": 0.8125002980232239, "answer_score": null, "sibling_qid": "CHE-2026-02-0478-Q004", "sibling_text": "this type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7861220240592957, "sibling_score": 0.7861220240592957, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.46794965267181393, "sibling_score": null, "answer_score": 0.46794965267181393, "sibling_qid": "", "sibling_text": "type a and type b ships how form and cargo set the freeboard", "sibling_family": "", "via": "answer_title", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "MUM-2026-07-3790-Q005", "text": "If tie rod is loose how you will know ?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Tie Rod / Tie Bolt", "tid": "MUM-2026-07-3790", "tray": "review", "candidates": [ { "answer_id": "TBR-TT-P02-002", "score": 0.7677478790283203, "sibling_score": 0.7677478790283203, "answer_score": 0.5359393537044524, "sibling_qid": "KOL-2019-10-3285-Q002", "sibling_text": "tie rod found loose hw to check problm tightening procedure", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Checking tie rod tightness / slackness — stopped and running", "cross_family": false }, { "answer_id": "TIE-ROD-C-001", "score": 0.726470410823822, "sibling_score": 0.726470410823822, "answer_score": 0.5472337663173675, "sibling_qid": "MUM-2025-11-1216-Q007", "sibling_text": "tie rod broken how to know", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Detecting a broken or slack tie rod — signs, and effects of running on", "cross_family": false }, { "answer_id": "TBR-TT-P02-001", "score": 0.4747083246707916, "sibling_score": null, "answer_score": 0.4747083246707916, "sibling_qid": "", "sibling_text": "tie rod tightening hydraulic tensioning procedure hydraulic pre tension only never a spanner or torque jacks fit over the nuts and stretch the rod before tensioning take crankshaft deflection then slacken the pinching screws and any bearing jacking bolts so the rod can elongate freely a mid span clamped rod stretches unevenly and reads false", "sibling_family": "", "via": "answer_title", "answer_title": "Tie rod tightening / hydraulic tensioning procedure", "cross_family": false } ] }, { "qid": "MUM-2026-07-3790-Q007", "text": "Priming and foaming is occurring what to do ?", "family": "Boilers - Operations & Firing", "subtopic": "Scum / Blow Down", "tid": "MUM-2026-07-3790", "tray": "new", "candidates": [ { "answer_id": "FOAM32-P07-002", "score": 0.5030007362365723, "sibling_score": 0.5030007362365723, "answer_score": null, "sibling_qid": "KOL-2018-06-2202-Q017", "sibling_text": "er flooding with foam", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Engine-room foam operation — flooding, discharge rate and dissipation", "cross_family": true }, { "answer_id": "FOAM-SYS-P06-002", "score": 0.5000192523002625, "sibling_score": 0.5000192523002625, "answer_score": null, "sibling_qid": "CHE-2026-04-0139-Q006S3", "sibling_text": "foam tank level less what you do how you will replenish key ans if we r ordering new we should not mix foam instead we have to change the whole tank of foam he expected this answer", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "2. Maintenance routines — fixed foam system & concentrate", "cross_family": true }, { "answer_id": "FOAM-SYS-P05-005", "score": 0.47094598412513733, "sibling_score": 0.47094598412513733, "answer_score": null, "sibling_qid": "KOL-2025-09-1046-Q008", "sibling_text": "what us foam solution", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "5. Foam types carried onboard and how the correct foam is selected", "cross_family": true } ] }, { "qid": "MUM-2026-07-3790-Q008", "text": "What is temporary hardness and permanent hardness and cross question ?", "family": "NDT & Material Testing", "subtopic": "Brinelling / Hardness", "tid": "MUM-2026-07-3790", "tray": "new", "candidates": [ { "answer_id": "BRHD-528-002", "score": 0.5799519419670105, "sibling_score": 0.5799519419670105, "answer_score": 0.4113331466913223, "sibling_qid": "KOC-2024-09-1868-Q003", "sibling_text": "what is hardness and its unit", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "What is hardness and its unit, and what is the Brinell hardness / Brinell number?", "cross_family": false }, { "answer_id": "BWTEST-C-003", "score": 0.5689797401428223, "sibling_score": 0.5689797401428223, "answer_score": null, "sibling_qid": "KOC-2024-02-1832-Q006", "sibling_text": "what is permanent hardness methods to remove permanent hardness", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Hardness & salts — scale risk, temporary vs permanent, hard vs soft", "cross_family": true }, { "answer_id": "HT-TCS-B-003", "score": 0.562609851360321, "sibling_score": 0.562609851360321, "answer_score": null, "sibling_qid": "KOL-2021-04-1584-Q009", "sibling_text": "what metal is best for hardening which steel is good for hardening few more question was there but all are from material and composition part only", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Hardening — purpose, suitable materials and components", "cross_family": false } ] }, { "qid": "MUM-2026-07-3790-Q010", "text": "Can we use centrifugal pump in auxiliary blower, why not , what is difference between them ?", "family": "Pumps - Centrifugal & PD", "subtopic": "Centrifugal Pump", "tid": "MUM-2026-07-3790", "tray": "review", "candidates": [ { "answer_id": "PCD-P01-01", "score": 0.6691831350326538, "sibling_score": 0.6691831350326538, "answer_score": 0.47290028035640713, "sibling_qid": "MUM-2026-06-3559-Q007", "sibling_text": "centrifugal pump can t handle air while turbocharger handles air why", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Working principle of a centrifugal pump — and why it cannot pump air", "cross_family": false }, { "answer_id": "PCD-P01-02", "score": 0.6242878437042236, "sibling_score": 0.6242878437042236, "answer_score": null, "sibling_qid": "MUM-2026-06-3505-Q006", "sibling_text": "type of pump in ows why not centrifugal", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Types and classification of pumps on board — and which pump for which duty", "cross_family": false }, { "answer_id": "PCD-P04-01", "score": 0.6094412207603455, "sibling_score": 0.6094412207603455, "answer_score": null, "sibling_qid": "MUM-2026-07-3782-Q009", "sibling_text": "bilge pump type why centrifugal pump not used", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "01. Bilge pump — type, why not centrifugal, and the suction valve chest", "cross_family": false } ] }, { "qid": "MUM-2026-07-3790-Q012", "text": "Nip of bearing ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Bearing Nomenclature", "tid": "MUM-2026-07-3790", "tray": "review", "candidates": [ { "answer_id": "BRG-NOM-004", "score": 0.812488853931427, "sibling_score": 0.812488853931427, "answer_score": 0.4764033883810043, "sibling_qid": "MUM-2025-10-1210-Q004", "sibling_text": "nip of bearing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bearing Nip/Crush, Clearance, and How the Shell is Held", "cross_family": false }, { "answer_id": "WMAT-170-005", "score": 0.6211882829666138, "sibling_score": 0.6211882829666138, "answer_score": 0.4401805907487869, "sibling_qid": "MUM-2026-06-3652-Q013", "sibling_text": "bedding of bearing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bearing bedding and seating / contact assessment", "cross_family": false }, { "answer_id": "MN-BRG-C-002", "score": 0.620401918888092, "sibling_score": 0.620401918888092, "answer_score": null, "sibling_qid": "KOL-2022-08-3560-Q001", "sibling_text": "bedding of bearing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bedding, contact check and fitting of shells", "cross_family": false } ] }, { "qid": "MUM-2026-07-3790-Q013", "text": " Gusset plate ?", "family": "Ship Construction & Stability", "subtopic": "Panting / Pounding / Slamming", "tid": "MUM-2026-07-3790", "tray": "review", "candidates": [ { "answer_id": "FWFB-P02-001", "score": 0.6918846964836121, "sibling_score": 0.6918846964836121, "answer_score": 0.4530138194561005, "sibling_qid": "MUM-2026-06-3559-Q003", "sibling_text": "gusset plate", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Brackets, knees and gusset plates", "cross_family": false }, { "answer_id": "SHELL-PLT-B-002", "score": 0.5568939447402954, "sibling_score": 0.5568939447402954, "answer_score": 0.3655532032251358, "sibling_qid": "MUM-2024-08-0195-Q003", "sibling_text": "stealer plate coffin plate gusset plate", "sibling_family": "", "via": "sibling", "answer_title": "Stealer plate and strake nesting", "cross_family": false }, { "answer_id": "FWFB-P02-005", "score": 0.4722684323787689, "sibling_score": 0.4722684323787689, "answer_score": 0.3660271644592285, "sibling_qid": "KOL-2019-01-0255-Q003", "sibling_text": "stanchion plate", "sibling_family": "", "via": "sibling", "answer_title": "Other members: breast hook, bulb angle, cross tie, margin / coffin / shoe plates", "cross_family": false } ] }, { "qid": "MUM-2026-07-3791-Q001", "text": "Type of vessel sailed ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-07-3791", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8416190147399902, "sibling_score": 0.8416190147399902, "answer_score": null, "sibling_qid": "CHE-2026-02-0481-Q001", "sibling_text": "type of vessels sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8248215317726135, "sibling_score": 0.8248215317726135, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.8039559721946716, "sibling_score": 0.8039559721946716, "answer_score": null, "sibling_qid": "CHE-2026-03-0255-Q001", "sibling_text": "type of vessel and engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "MUM-2026-07-3791-Q002", "text": "Engine specification ?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-07-3791", "tray": "review", "candidates": [ { "answer_id": "ENG-NOM-006", "score": 0.807503879070282, "sibling_score": 0.807503879070282, "answer_score": null, "sibling_qid": "CHE-2026-03-0181-Q001", "sibling_text": "engine specification", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Short-form asks: SMC-C, LMC, and ME vs MC quickly", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7220147848129272, "sibling_score": 0.7220147848129272, "answer_score": null, "sibling_qid": "MUM-2026-07-3719-Q006", "sibling_text": "type of engine and it s specification", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false }, { "answer_id": "ETP-344-P03-003", "score": 0.49333229064941403, "sibling_score": null, "answer_score": 0.49333229064941403, "sibling_qid": "", "sibling_text": "engine nomenclature layout mark number and engine constant designation order man b w cylinders stroke bore letter k l s g bore in cm m programme concept e electronic c camshaft design c compact b camshaft controlled exhaust hybrid mark number gi if gas injection tier rating stroke bore letters k short l long s super long g ultra long green the ratios are approximate design values not exact", "sibling_family": "", "via": "answer_title", "answer_title": "Engine nomenclature, layout, mark number and engine constant", "cross_family": false } ] }, { "qid": "MUM-2026-07-3791-Q004", "text": "Why SED is there ?", "family": "SOLAS - Fire Safety", "subtopic": "Fire Lance / Wallet", "tid": "MUM-2026-07-3791", "tray": "new", "candidates": [ { "answer_id": "DUS-P1-02", "score": 0.29742303490638733, "sibling_score": 0.29742303490638733, "answer_score": null, "sibling_qid": "KOL-2021-04-3399-Q003", "sibling_text": "special tools for dd to approch", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Plans, drawings and special tools kept ready for drydock — engine-department view", "cross_family": true }, { "answer_id": "BW-TEST-D-001", "score": 0.29586154222488403, "sibling_score": 0.29586154222488403, "answer_score": null, "sibling_qid": "MUM-2026-04-2956-Q008S2", "sibling_text": "why its necessary", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Boiler-water treatment — why, and the chemicals used", "cross_family": true }, { "answer_id": "ESP-A-001", "score": 0.2864673435688019, "sibling_score": 0.2864673435688019, "answer_score": null, "sibling_qid": "MUM-2025-08-1151-Q009", "sibling_text": "why we do esp", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the Enhanced Survey Programme (ESP), and what is its purpose?", "cross_family": true } ] }, { "qid": "MUM-2026-07-3791-Q007", "text": "Thrust pad design ? Location of thrust pad ? ", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Thrust Bearing", "tid": "MUM-2026-07-3791", "tray": "review", "candidates": [ { "answer_id": "THRUST-BRG-B-003", "score": 0.7453001141548157, "sibling_score": 0.7453001141548157, "answer_score": null, "sibling_qid": "CHE-2025-11-0221-Q006", "sibling_text": "thrust pad location and working", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Michell / tilting-pad / collar thrust bearing — working principle", "cross_family": false }, { "answer_id": "THR-BRG-A-001", "score": 0.7450549602508545, "sibling_score": 0.7450549602508545, "answer_score": null, "sibling_qid": "MUM-2025-10-2436-Q002", "sibling_text": "thrust pad location and various clearances", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you check, measure, limit and adjust main-engine thrust bearing clearance?", "cross_family": false }, { "answer_id": "THRUST-BRG-B-002", "score": 0.6805033087730408, "sibling_score": 0.6805033087730408, "answer_score": null, "sibling_qid": "KOL-2025-06-1808-Q003", "sibling_text": "thrust bearing where it is placed why it is placed at that position material of thrust pads", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Thrust pads — lubrication and material", "cross_family": false } ] }, { "qid": "MUM-2026-07-3791-Q010", "text": "Flywheel teeth broken while engine is running what will happen to tacho sensor ?", "family": "Diesel Engines - General", "subtopic": "", "tid": "MUM-2026-07-3791", "tray": "review", "candidates": [ { "answer_id": "PROP-RP-004", "score": 0.7193658947944641, "sibling_score": 0.7193658947944641, "answer_score": null, "sibling_qid": "KOL-2026-07-4258-Q006", "sibling_text": "flywheel 2 teeth broken what will happen", "sibling_family": "Diesel Engines - General", "via": "sibling", "answer_title": "Blade damage, repair zones, polishing and balancing", "cross_family": false }, { "answer_id": "TG-MOTOR-006", "score": 0.563306450843811, "sibling_score": 0.563306450843811, "answer_score": null, "sibling_qid": "CHE-2026-04-0501-Q001", "sibling_text": "if tg motor burnt how you will remove tg out of flywheel", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "The turning gear motor is burnt or stuck during engine preparation. How do you operate the turning gear in an emergency and get it out of the flywheel?", "cross_family": true }, { "answer_id": "EPC-P03-006", "score": 0.5451288223266602, "sibling_score": 0.5451288223266602, "answer_score": null, "sibling_qid": "KOL-2025-03-2771-Q005", "sibling_text": "tachometer working", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "How does a tachometer work — working principle and location — and what is a tacho-generator?", "cross_family": true } ] }, { "qid": "MUM-2026-07-3791-Q012", "text": "Pressure reducing valve? How it is working?", "family": "Auxiliary Equipment", "subtopic": "VALVES", "tid": "MUM-2026-07-3791", "tray": "review", "candidates": [ { "answer_id": "MAST-PVA-004", "score": 0.7060407400131226, "sibling_score": 0.7060407400131226, "answer_score": 0.48516166508197783, "sibling_qid": "KOC-2026-08-2163-Q010", "sibling_text": "explain the procedure of how pressure reduction valve works with diagram", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "P/V valve & P/V breaker — pressure/vacuum settings and the basis", "cross_family": true }, { "answer_id": "MAST-PVA-002", "score": 0.644458532333374, "sibling_score": 0.644458532333374, "answer_score": null, "sibling_qid": "CHE-2026-08-0666-Q006", "sibling_text": "pv valve working", "sibling_family": "Tanker Operations & IG Systems", "via": "sibling", "answer_title": "P/V valve vs P/V breaker — function, location and difference", "cross_family": true }, { "answer_id": "DCP-FIXED-A-003", "score": 0.6290144920349121, "sibling_score": 0.6290144920349121, "answer_score": null, "sibling_qid": "KOC-2025-01-0511-Q005", "sibling_text": "relief valves lifting pressure", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Capacities, pressures, relief settings, regulations and calculation", "cross_family": true } ] }, { "qid": "MUM-2026-07-3791-Q013", "text": "Safety valve setting pressure ?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2026-07-3791", "tray": "review", "candidates": [ { "answer_id": "ECON-EGB-004", "score": 0.8154904842376709, "sibling_score": 0.8154904842376709, "answer_score": 0.5972028076648712, "sibling_qid": "KOL-2026-09-4304-Q003", "sibling_text": "safety valve setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Safety-valve setting after overhaul & why set higher than the boiler", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.8041664361953735, "sibling_score": 0.8041664361953735, "answer_score": null, "sibling_qid": "MUM-2026-02-1255-Q006", "sibling_text": "setting of safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-002", "score": 0.7784749865531921, "sibling_score": 0.7784749865531921, "answer_score": null, "sibling_qid": "KOL-2026-02-3922-Q005", "sibling_text": "what is lifting of safety valve tell only within 3 percent of designated set pressure nothing else", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Acceptance limits and durations — the accumulation limit, the maximum test periods, and the action if the limit is exceeded", "cross_family": false } ] }, { "qid": "MUM-2026-07-3791-Q014", "text": "In aux engine pmax and exhaust temperature is more for one unit and another unit pmax is more and exhaust temperature is less? What is the reason ?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "High Exh Temp Alarm", "tid": "MUM-2026-07-3791", "tray": "review", "candidates": [ { "answer_id": "IND-CARD-B-005", "score": 0.7652117609977722, "sibling_score": 0.7652117609977722, "answer_score": null, "sibling_qid": "KOL-2026-04-2056-Q002", "sibling_text": "all units pcomp pmax are okay one units exhaust line is higher in draw card reasons", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Interpreting Pmax, Pcomp and compression / expansion-line abnormalities", "cross_family": false }, { "answer_id": "IND-CARD-006", "score": 0.7463003993034363, "sibling_score": 0.7463003993034363, "answer_score": 0.5443790555000305, "sibling_qid": "KOL-2025-07-1819-Q015", "sibling_text": "a e one unit peak pressure and exhaust temp high reason", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Interpreting Pmax, Pcomp and exhaust-temperature changes for timing and combustion", "cross_family": false }, { "answer_id": "EXH-T-HI-002", "score": 0.7189905047416687, "sibling_score": 0.7189905047416687, "answer_score": null, "sibling_qid": "CHE-2026-04-0259-Q004", "sibling_text": "temp of one unit exhaust is high wt will be ur action", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "One unit exhaust temperature high — causes, checks and actions", "cross_family": false } ] }, { "qid": "MUM-2026-07-3791-Q016", "text": "Tied rod slacken.. how to know ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Chain & Tensioning", "tid": "MUM-2026-07-3791", "tray": "review", "candidates": [ { "answer_id": "TBR-TT-P02-002", "score": 0.6765608191490173, "sibling_score": 0.6765608191490173, "answer_score": 0.5211217701435089, "sibling_qid": "KOL-2026-01-3904-Q004", "sibling_text": "tie rod slackned only one tie rod how will find when engine is in stop condition", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Checking tie rod tightness / slackness — stopped and running", "cross_family": true }, { "answer_id": "TBR-TT-P02-001", "score": 0.6017940044403076, "sibling_score": 0.6017940044403076, "answer_score": 0.48384855687618256, "sibling_qid": "MUM-2025-09-2429-Q004", "sibling_text": "after tightening the tie rod how will you ensure the tightening is proper i said elongation length and c s deflection he was also expecting for pinching clearance", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Tie rod tightening / hydraulic tensioning procedure", "cross_family": true }, { "answer_id": "CHAIN-TENS-A-003", "score": 0.5975116491317749, "sibling_score": 0.5975116491317749, "answer_score": null, "sibling_qid": "KOL-2026-01-3908-Q004", "sibling_text": "how to know chain is slack what will you do not accepting moving chain to slack side tightener side few more questions", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Chain Tightening Procedure — MC / MC-C / ME", "cross_family": false } ] }, { "qid": "MUM-2026-07-3792-Q005", "text": "⁠Ni Cd battery advantages and disadvantages ?", "family": "Electrical - Batteries & DC Systems", "subtopic": "Battery", "tid": "MUM-2026-07-3792", "tray": "review", "candidates": [ { "answer_id": "BDC-P01-04", "score": 0.8304069638252258, "sibling_score": 0.8304069638252258, "answer_score": 0.5832074493169784, "sibling_qid": "KOC-2022-08-1192-Q009", "sibling_text": "ni cd battery advantages and disadvantages", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "Lead-acid vs Ni-Cd (alkaline) — comparison, advantages and disadvantages", "cross_family": false }, { "answer_id": "BATT-TYPE-002", "score": 0.5448182106018066, "sibling_score": null, "answer_score": 0.5448182106018066, "sibling_qid": "", "sibling_text": "difference between lead acid and alkaline ni cd and the advantages of ni cd lead acid ve lead dioxide pbo ve spongy lead electrolyte dilute sulphuric acid acid is a reactant so on accessible flooded cells density falls on discharge and indicates state of charge not on sealed vrla ni cd ve nickel oxyhydroxide nickel hydroxide niooh ni oh ve cadmium cadmium hydroxide cd cd oh electrolyte potassium h", "sibling_family": "", "via": "answer_title", "answer_title": "Difference between lead-acid and alkaline / Ni-Cd — and the advantages of Ni-Cd", "cross_family": false }, { "answer_id": "BDC-P03-03", "score": 0.5181482017040252, "sibling_score": null, "answer_score": 0.5181482017040252, "sibling_qid": "", "sibling_text": "nickel cadmium charging and discharging reactions and process positive plate niooh charged ni oh discharged negative plate cd charged cd oh discharged", "sibling_family": "", "via": "answer_title", "answer_title": "Nickel-cadmium charging and discharging — reactions and process", "cross_family": false } ] }, { "qid": "MUM-2026-07-3793-Q001", "text": "Type of ship sailed ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-07-3793", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8457899689674377, "sibling_score": 0.8457899689674377, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8448032140731812, "sibling_score": 0.8448032140731812, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7926929593086243, "sibling_score": 0.7926929593086243, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "MUM-2026-07-3793-Q007", "text": "co2 why time delay?", "family": "SOLAS - Fire Safety", "subtopic": "CO2 System", "tid": "MUM-2026-07-3793", "tray": "review", "candidates": [ { "answer_id": "CO2-SYS-005", "score": 0.7497130036354065, "sibling_score": 0.7497130036354065, "answer_score": 0.34127896577119826, "sibling_qid": "KOC-2024-10-0441-Q008", "sibling_text": "co2 why time delay location", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 system safeties, CO2-room requirements, alarms and ventilation", "cross_family": false }, { "answer_id": "CO2-SYS-008", "score": 0.621582567691803, "sibling_score": 0.621582567691803, "answer_score": null, "sibling_qid": "KOL-2017-10-0120-Q004", "sibling_text": "co2 regulations and timing why 85 within 2 min", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 release-rate rules, regulations and confirmation of discharge", "cross_family": false }, { "answer_id": "CO2-SYS-001", "score": 0.6130641102790833, "sibling_score": 0.6130641102790833, "answer_score": null, "sibling_qid": "KOL-2019-08-0305-Q004", "sibling_text": "co2 discharge regulation why in 2 minutes", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 release procedure, shutdowns, re-entry and casualty-use decisions", "cross_family": false } ] }, { "qid": "MUM-2026-07-3793-Q008", "text": "PSSA and MARPOL differences?", "family": "Other Conventions", "subtopic": "EEZ / PSSA / Special Area", "tid": "MUM-2026-07-3793", "tray": "review", "candidates": [ { "answer_id": "EEZ-PSSA-001", "score": 0.7117844820022583, "sibling_score": 0.7117844820022583, "answer_score": 0.5168956369161606, "sibling_qid": "KOC-2025-10-0697-Q003", "sibling_text": "what is pssa difference b w pssa and marpol special area where all are considered as pssa area", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "PSSA — what it is, who designates it, and how it differs from a MARPOL special area", "cross_family": false }, { "answer_id": "OTH-CONV-004", "score": 0.6280871033668518, "sibling_score": 0.6280871033668518, "answer_score": null, "sibling_qid": "KOL-2025-09-1032-Q005", "sibling_text": "other than marpol two more conv", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Pollution-related IMO conventions other than MARPOL", "cross_family": false }, { "answer_id": "ODC-001", "score": 0.5894665122032166, "sibling_score": 0.5894665122032166, "answer_score": null, "sibling_qid": "KOL-2024-09-0865-Q006", "sibling_text": "marpol", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "MARPOL Annex I oil discharge criteria — the overall framework", "cross_family": true } ] }, { "qid": "MUM-2026-07-3793-Q010", "text": "IMO green house gas ratings? Internal: no questions", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "GHG / Greenhouse", "tid": "MUM-2026-07-3793", "tray": "review", "candidates": [ { "answer_id": "CII-RATE-P02-001", "score": 0.6730393767356873, "sibling_score": 0.6730393767356873, "answer_score": null, "sibling_qid": "KOC-2024-10-0439-Q011", "sibling_text": "ghg rating", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "1. The CII rating scale A to E — what each rating means", "cross_family": false }, { "answer_id": "MEPC-GHG-005", "score": 0.6482179760932922, "sibling_score": 0.6482179760932922, "answer_score": null, "sibling_qid": "MUM-2026-06-3413-Q006", "sibling_text": "imo requirements for reducing ghg", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "The IMO GHG Strategy and its revised version — the new and latest GHG measures, the strategy on CO2, and the requirements for reducing GHG.", "cross_family": false }, { "answer_id": "GHG-591-001", "score": 0.6292999982833862, "sibling_score": 0.6292999982833862, "answer_score": null, "sibling_qid": "KOC-2025-01-0525-Q006", "sibling_text": "ghg emissions internal", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is a greenhouse gas, which gases are they, and what is the greenhouse effect?", "cross_family": false } ] }, { "qid": "MUM-2026-07-3794-Q006", "text": "full bore safety valve draw and explain and materials?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2026-07-3794", "tray": "review", "candidates": [ { "answer_id": "MR-DS-PV-B-006", "score": 0.7569297552108765, "sibling_score": 0.7569297552108765, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q005", "sibling_text": "full bore safety valve diagram", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "6. Deck isolating valve, deck relief/safety devices, and cargo-tank pressure", "cross_family": false }, { "answer_id": "BLR-SURV-P02-001", "score": 0.6992686986923218, "sibling_score": 0.6992686986923218, "answer_score": null, "sibling_qid": "KOC-2026-05-2142-Q007", "sibling_text": "full bore safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "GV-330-001", "score": 0.4851379036903381, "sibling_score": null, "answer_score": 0.4851379036903381, "sibling_qid": "", "sibling_text": "draw and explain the gate valve construction main parts operation onboard use isolating valve only fully open or fully shut neverthrottled operation handwheel threaded stem wedge raised lowered between two seat faces", "sibling_family": "", "via": "answer_title", "answer_title": "Draw and explain the gate valve — construction, main parts, operation & onboard use", "cross_family": false } ] }, { "qid": "MUM-2026-07-3794-Q007", "text": "full lift draw and explain ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Transformer Theory", "tid": "MUM-2026-07-3794", "tray": "new", "candidates": [ { "answer_id": "XFMR-THY-D-001", "score": 0.46992605924606323, "sibling_score": 0.46992605924606323, "answer_score": null, "sibling_qid": "CHE-2025-10-0304-Q007", "sibling_text": "draw and explain", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Transformer — principle and working", "cross_family": false }, { "answer_id": "HYD-JACK-001", "score": 0.4664268493652344, "sibling_score": 0.4664268493652344, "answer_score": null, "sibling_qid": "KOC-2025-02-1027-Q006", "sibling_text": "draw hydraulic jack and explain", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Hydraulic jack — construction, components, sealing and basic working", "cross_family": true }, { "answer_id": "LOLL-CORE-P01-001", "score": 0.46164101362228394, "sibling_score": 0.46164101362228394, "answer_score": null, "sibling_qid": "KOC-2024-12-0490-Q010", "sibling_text": "angle of loll draw and explain", "sibling_family": "", "via": "sibling", "answer_title": "What is angle of loll?", "cross_family": false } ] }, { "qid": "MUM-2026-07-3794-Q008", "text": "cylinder head relief valve draw and explain ?", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Cover / Head", "tid": "MUM-2026-07-3794", "tray": "review", "candidates": [ { "answer_id": "SAV-001", "score": 0.7522150278091431, "sibling_score": 0.7522150278091431, "answer_score": null, "sibling_qid": "MUM-2026-03-2935-Q005", "sibling_text": "cylinder head safety valve of main engine diagram", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Construction and working of the main automatic starting air valve", "cross_family": false }, { "answer_id": "CCH-590-001", "score": 0.7115659117698669, "sibling_score": 0.7115659117698669, "answer_score": null, "sibling_qid": "KOC-2026-05-2127-Q012", "sibling_text": "cylinder head relief arrangements", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "What is the cylinder cover made of and why, and what is the purpose of the O-ring on it?", "cross_family": false }, { "answer_id": "FFF-A-003", "score": 0.6648452281951904, "sibling_score": 0.6648452281951904, "answer_score": null, "sibling_qid": "CHE-2026-04-0170-Q001S8", "sibling_text": "cylinder relief valve construction", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fire main, hydrants, isolating and deck valves, and fire-line fittings", "cross_family": true } ] }, { "qid": "MUM-2026-07-3794-Q015", "text": "How will you remove the crosshead bearing, piston in place, what all you will check, what all layers on the bearing?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Crosshead Bearing", "tid": "MUM-2026-07-3794", "tray": "review", "candidates": [ { "answer_id": "XHD-BRG-C-002", "score": 0.7622345685958862, "sibling_score": 0.7622345685958862, "answer_score": 0.5698390066623688, "sibling_qid": "KOC-2024-01-1825-Q001", "sibling_text": "crosshead bearing removal with piston in place", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "B. Crosshead bearing overhaul and removal: exact steps, tackle, withdrawing the pin", "cross_family": false }, { "answer_id": "CXH-BRG-FINAL-1-001", "score": 0.7542287707328796, "sibling_score": 0.7542287707328796, "answer_score": 0.5201852470636368, "sibling_qid": "KOL-2019-02-3210-Q006", "sibling_text": "cross head bearing removal nd checks", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead bearing survey: open-up, removal & inspection", "cross_family": false }, { "answer_id": "XHD-BRG-C-001", "score": 0.7456340193748474, "sibling_score": 0.7456340193748474, "answer_score": null, "sibling_qid": "KOC-2024-01-1824-Q001", "sibling_text": "crosshead bearing inspection piston in place", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "A. Present the crosshead bottom shell for survey, piston in place", "cross_family": false } ] }, { "qid": "MUM-2026-07-3794-Q018", "text": "thrust bearing measurement for both AE, MAN and Sulzer? ", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Thrust Bearing", "tid": "MUM-2026-07-3794", "tray": "review", "candidates": [ { "answer_id": "THR-BRG-A-001", "score": 0.763067364692688, "sibling_score": 0.763067364692688, "answer_score": 0.47863822579383847, "sibling_qid": "KOC-2023-02-1807-Q005", "sibling_text": "main engine thrust bearing clearance measurement procedure both sulzer and man", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you check, measure, limit and adjust main-engine thrust bearing clearance?", "cross_family": false }, { "answer_id": "TB-BEAR-001", "score": 0.7111109495162964, "sibling_score": 0.7111109495162964, "answer_score": 0.5030234932899474, "sibling_qid": "MUM-2026-06-3516-Q004", "sibling_text": "thrust block clearance measurement procedure both sulzer and man", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Thrust bearing clearance — measurement procedure & value", "cross_family": false }, { "answer_id": "THRUST-PC-001", "score": 0.682025134563446, "sibling_score": 0.682025134563446, "answer_score": 0.4696764826774597, "sibling_qid": "KOL-2019-11-1877-Q003", "sibling_text": "thrust bearing survey", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Thrust bearing / block survey — 2/E scope", "cross_family": false } ] }, { "qid": "MUM-2026-07-3795-Q002", "text": "+\\- temp coefficient of thermionic emission material involved and how it happens?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Electrical Components / Electronics", "tid": "MUM-2026-07-3795", "tray": "review", "candidates": [ { "answer_id": "ELEC-ELX-005", "score": 0.6744452118873596, "sibling_score": 0.6744452118873596, "answer_score": 0.46415188312530514, "sibling_qid": "KOL-2019-07-2305-Q004", "sibling_text": "thermionic emissions asked about material used", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Thermionic emission — principle and use", "cross_family": false }, { "answer_id": "ELEC-ELX-007", "score": 0.5775680541992188, "sibling_score": 0.5775680541992188, "answer_score": null, "sibling_qid": "KOL-2021-08-2484-Q003", "sibling_text": "what is thermo ionic emission where it is used", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Electromagnetic interference (EMI)", "cross_family": false }, { "answer_id": "SCR-306-B-001", "score": 0.5722272396087646, "sibling_score": 0.5722272396087646, "answer_score": null, "sibling_qid": "KOC-2024-12-1446-Q004", "sibling_text": "thyristor thermocouple", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Thyristor / SCR vs other semiconductor devices", "cross_family": false } ] }, { "qid": "MUM-2026-07-3795-Q003", "text": "DP transmitter calibration equipment name and variable led ref leg xxx ques?", "family": "Boilers - Operations & Firing", "subtopic": "DP Transmitter", "tid": "MUM-2026-07-3795", "tray": "review", "candidates": [ { "answer_id": "DP-TX-005", "score": 0.7577268481254578, "sibling_score": 0.7577268481254578, "answer_score": 0.46913225054740904, "sibling_qid": "MUM-2025-09-1646-Q006", "sibling_text": "dp transmitter calibration", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "DP transmitter calibration, testing, isolation/renewal and precautions", "cross_family": false }, { "answer_id": "DP-TX-002", "score": 0.7510135173797607, "sibling_score": 0.7510135173797607, "answer_score": null, "sibling_qid": "MUM-2024-07-0960-Q009", "sibling_text": "dp transmitter wet leg ref leg", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler drum-level DP transmitter — wet/reference leg, alarms and trip", "cross_family": false }, { "answer_id": "DP-TX-001", "score": 0.6396145224571228, "sibling_score": 0.6396145224571228, "answer_score": null, "sibling_qid": "KOL-2026-04-2980-Q005", "sibling_text": "dp transmitter", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "DP cell / DP transmitter — working principle, construction and signal", "cross_family": false } ] }, { "qid": "MUM-2026-07-3795-Q004", "text": "Plc and Scada?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "PLC", "tid": "MUM-2026-07-3795", "tray": "review", "candidates": [ { "answer_id": "EPC-P03-001", "score": 0.7692425847053528, "sibling_score": 0.7692425847053528, "answer_score": 0.494447860121727, "sibling_qid": "KOC-2025-01-1460-Q007", "sibling_text": "plc scada", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a PLC? Where is it used onboard, what are its advantages, and how does it differ from a conventional relay control panel?", "cross_family": false }, { "answer_id": "EPC-P03-005", "score": 0.7422187924385071, "sibling_score": 0.7422187924385071, "answer_score": 0.5017329812049866, "sibling_qid": "KOC-2023-07-1268-Q005", "sibling_text": "scada explain plc what is ladder programming", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is SCADA — where is it used onboard, and what is an HMI?", "cross_family": false }, { "answer_id": "EPC-P03-002", "score": 0.6911945939064026, "sibling_score": 0.6911945939064026, "answer_score": 0.46347734332084656, "sibling_qid": "MUM-2025-11-1771-Q002", "sibling_text": "plc and components", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What are the components and parts of a PLC — including the memory types and what data is stored in each?", "cross_family": false } ] }, { "qid": "MUM-2026-07-3795-Q006", "text": "Ward Leonard System ?", "family": "Electrical - Motors & Starters", "subtopic": "Ward Leonard System", "tid": "MUM-2026-07-3795", "tray": "new", "candidates": [ { "answer_id": "WARD-LEO-001", "score": 0.6217437386512756, "sibling_score": 0.6217437386512756, "answer_score": 0.3266308784484863, "sibling_qid": "MUM-2024-12-1475-Q002", "sibling_text": "what is ward leonard", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Explain the Ward Leonard system and its speed-governing principle", "cross_family": false }, { "answer_id": "WARD-LEO-003", "score": 0.31724740862846373, "sibling_score": null, "answer_score": 0.31724740862846373, "sibling_qid": "", "sibling_text": "speed control of a deck windlass motor by ward leonard windlass duty needs high breakout torque a fine creep speed frequent reversal and controlled lowering ward leonard delivers all four heaving speed by the generator field armature voltage control high starting torque because the motor field is held full", "sibling_family": "", "via": "answer_title", "answer_title": "Speed control of a deck windlass motor by Ward Leonard", "cross_family": false }, { "answer_id": "WARD-LEO-002", "score": 0.29392963051795956, "sibling_score": null, "answer_score": 0.29392963051795956, "sibling_qid": "", "sibling_text": "ward leonard in electric steering gear construction working and feedback chain a c motor constant speed ward leonard generator variable field control element d c steering motor rudder stock through reduction gearing helm telemotor order sets the generator field magnitude and polarity rudder speed and direction", "sibling_family": "", "via": "answer_title", "answer_title": "Ward Leonard in electric steering gear — construction, working and feedback", "cross_family": false } ] }, { "qid": "MUM-2026-07-3795-Q007", "text": "Self excitation and how field flashing done ?", "family": "Electrical - Generator & Alternator", "subtopic": "AVR / Excitation", "tid": "MUM-2026-07-3795", "tray": "new", "candidates": [ { "answer_id": "AVR-EXC-G-001", "score": 0.5744964480400085, "sibling_score": 0.5744964480400085, "answer_score": 0.4129090994596481, "sibling_qid": "KOL-2021-12-2523-Q002", "sibling_text": "self excitation and where used", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "What excitation is, and the types used onboard", "cross_family": false }, { "answer_id": "RES-MAG-004", "score": 0.5691254734992981, "sibling_score": 0.5691254734992981, "answer_score": 0.4363459378480911, "sibling_qid": "MUM-2022-11-1369-Q010", "sibling_text": "explain flashing procedure", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Field flashing — the procedure, where the battery connects, which terminal, and the precautions", "cross_family": false }, { "answer_id": "AVR-EXC-E-001", "score": 0.5470900535583496, "sibling_score": 0.5470900535583496, "answer_score": null, "sibling_qid": "KOL-2018-08-2222-Q004", "sibling_text": "static excitation explain", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "How does a static AVR / static excitation system work? (draw & explain)", "cross_family": false } ] }, { "qid": "MUM-2026-07-3796-Q002", "text": "pressure of N2 bottles , pressure of powder tank bottle , powder tank relief valve setting pressure , contents of powder , maintenance.?", "family": "SOLAS - Fire Safety", "subtopic": "DCP / Dry Powder", "tid": "MUM-2026-07-3796", "tray": "review", "candidates": [ { "answer_id": "DCP-FIXED-A-003", "score": 0.7695533633232117, "sibling_score": 0.7695533633232117, "answer_score": null, "sibling_qid": "KOC-2023-10-0233-Q003", "sibling_text": "fixed dcp system draw and explain relief valve dcp contents n2 bottle pressure", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Capacities, pressures, relief settings, regulations and calculation", "cross_family": false }, { "answer_id": "CO2-SYS-002", "score": 0.763702392578125, "sibling_score": 0.763702392578125, "answer_score": null, "sibling_qid": "KOC-2023-10-0226-Q005", "sibling_text": "co2 bottle specifications relief valve testing pressure", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 maintenance, inspection, testing and survey routines", "cross_family": false }, { "answer_id": "CO2-SYS-005", "score": 0.754100501537323, "sibling_score": 0.754100501537323, "answer_score": null, "sibling_qid": "KOC-2024-11-0461-Q010", "sibling_text": "co2 room relief valve pressure setting manifold pressure co2 bottle pressure lots of cross", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 system safeties, CO2-room requirements, alarms and ventilation", "cross_family": false } ] }, { "qid": "MUM-2026-07-3797-Q002", "text": "Draw rudder carrier bearing ?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "MUM-2026-07-3797", "tray": "review", "candidates": [ { "answer_id": "TRS-002", "score": 0.6925737261772156, "sibling_score": 0.6925737261772156, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "PRE-TEN-001", "score": 0.6678157448768616, "sibling_score": 0.6678157448768616, "answer_score": null, "sibling_qid": "MUM-2026-06-3504-Q007", "sibling_text": "rudder carrier bearing removal procedure", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Pre-stressing and pre-tensioning in main-engine bolting", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.6401436924934387, "sibling_score": 0.6401436924934387, "answer_score": 0.4620893537998199, "sibling_qid": "CHE-2026-02-0110-Q006", "sibling_text": "how rudder weight is carried key ans i said carrier bearing how it carrying explain", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false } ] }, { "qid": "MUM-2026-07-3797-Q008", "text": "Draw 3 point starter?", "family": "Electrical - Motors & Starters", "subtopic": "DC Motor Three-Point Starter", "tid": "MUM-2026-07-3797", "tray": "review", "candidates": [ { "answer_id": "STR-DEC-A-001", "score": 0.7396321296691895, "sibling_score": 0.7396321296691895, "answer_score": null, "sibling_qid": "KOC-2026-02-1697-Q002", "sibling_text": "draw 3 pt starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor starters used onboard & their applications", "cross_family": false }, { "answer_id": "STARTER-DEC-B-003", "score": 0.6505351066589355, "sibling_score": 0.6505351066589355, "answer_score": null, "sibling_qid": "KOC-2023-04-1255-Q006", "sibling_text": "dol starter 3 point starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "DOL starter — use, current, range and limits", "cross_family": false }, { "answer_id": "SDST-A-001", "score": 0.61139976978302, "sibling_score": 0.61139976978302, "answer_score": 0.3372048750519752, "sibling_qid": "KOC-2024-10-1407-Q001", "sibling_text": "draw star delta starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false } ] }, { "qid": "MUM-2026-07-3797-Q014", "text": "Exd fixtures?", "family": "Workshop & Welding", "subtopic": "Workshop Tools / Grinder Safety", "tid": "MUM-2026-07-3797", "tray": "new", "candidates": [ { "answer_id": "EXD-EXI-A-002", "score": 0.48836469650268555, "sibling_score": 0.48836469650268555, "answer_score": 0.22620715647935866, "sibling_qid": "KOC-2025-05-2064-Q007", "sibling_text": "ex i and exd", "sibling_family": "", "via": "sibling", "answer_title": "Ex d (flameproof / explosion-proof) — construction, shipboard applications and maintenance", "cross_family": false }, { "answer_id": "EXD-EXI-A-001", "score": 0.4819642901420593, "sibling_score": 0.4819642901420593, "answer_score": null, "sibling_qid": "CHE-2026-02-0335-Q007", "sibling_text": "exi and exd", "sibling_family": "", "via": "sibling", "answer_title": "Ex i (intrinsically safe) vs Ex d (flameproof / explosion-proof) — the difference", "cross_family": false }, { "answer_id": "EEDI-C-003", "score": 0.2639552429318428, "sibling_score": null, "answer_score": 0.2639552429318428, "sibling_qid": "", "sibling_text": "how eedi sits against eexi cii and seemp", "sibling_family": "", "via": "answer_title", "answer_title": "How EEDI sits against EEXI, CII and SEEMP", "cross_family": false } ] }, { "qid": "MUM-2026-07-3798-Q001", "text": "Type of ship sailed?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-07-3798", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8453051447868347, "sibling_score": 0.8453051447868347, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.844316840171814, "sibling_score": 0.844316840171814, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7923057675361633, "sibling_score": 0.7923057675361633, "answer_score": null, "sibling_qid": "CHE-2026-03-0253-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "MUM-2026-07-3799-Q003", "text": "why  Boiler water steam drum size is smaller then water drum?", "family": "Boilers - Construction & Components", "subtopic": "Steam / Mud Drum", "tid": "MUM-2026-07-3799", "tray": "review", "candidates": [ { "answer_id": "BLR-TUBE-P01-002", "score": 0.6724751591682434, "sibling_score": 0.6724751591682434, "answer_score": null, "sibling_qid": "KOL-2021-07-1605-Q004", "sibling_text": "why in water tube boiler steam generating tubes are less in diameter", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "03. Types, functions and arrangement of boiler tubes", "cross_family": false }, { "answer_id": "BLR-TUBE-P01-003", "score": 0.6369807720184326, "sibling_score": 0.6369807720184326, "answer_score": null, "sibling_qid": "KOL-2020-11-1557-Q002", "sibling_text": "small boiler tube expansion", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "02. Thermal expansion arrangements for boiler tubes", "cross_family": false }, { "answer_id": "BLR-DRUM-007", "score": 0.6268472075462341, "sibling_score": 0.6268472075462341, "answer_score": 0.5010092973709106, "sibling_qid": "KOL-2021-12-3496-Q003", "sibling_text": "boiler water drum construction", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Boiler water-drum (mud drum) construction", "cross_family": false } ] }, { "qid": "MUM-2026-07-3799-Q006", "text": "Centrifugal pump rpm reduce by 10% what effects on torque, what is effects on pump efficiency ?", "family": "Pumps - Centrifugal & PD", "subtopic": "Centrifugal Pump", "tid": "MUM-2026-07-3799", "tray": "review", "candidates": [ { "answer_id": "PCD-P01-06", "score": 0.7229717373847961, "sibling_score": 0.7229717373847961, "answer_score": 0.5043464303016663, "sibling_qid": "KOC-2026-03-2014-Q008", "sibling_text": "centrifugal pump efficiency reduced reasons internal no questions", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Centrifugal pump — reasons for performance drop, low efficiency, vibration, and still-poor-after-overhaul", "cross_family": false }, { "answer_id": "PCD-P01-05", "score": 0.6431558132171631, "sibling_score": 0.6431558132171631, "answer_score": null, "sibling_qid": "KOL-2025-03-3757-Q003", "sibling_text": "centrifugal pump performance how to take", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Checking centrifugal pump performance — head, flow and the MCSW check with M/E running", "cross_family": false }, { "answer_id": "PUMP-CAS-002", "score": 0.6408944725990295, "sibling_score": 0.6408944725990295, "answer_score": null, "sibling_qid": "KOL-2026-02-3922-Q003", "sibling_text": "in centrifugal pump how the radila thrust is minimized", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "02. Double-volute casing — why it is used, which thrust it balances, and the clearance in question", "cross_family": false } ] }, { "qid": "MUM-2026-07-3799-Q007", "text": "main engine one unit p com. And process max is ok but exhaust valve high cause?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Performance parameters", "tid": "MUM-2026-07-3799", "tray": "review", "candidates": [ { "answer_id": "IND-CARD-B-005", "score": 0.7839549779891968, "sibling_score": 0.7839549779891968, "answer_score": null, "sibling_qid": "KOL-2026-04-2056-Q002", "sibling_text": "all units pcomp pmax are okay one units exhaust line is higher in draw card reasons", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Interpreting Pmax, Pcomp and compression / expansion-line abnormalities", "cross_family": false }, { "answer_id": "IND-CARD-006", "score": 0.7834832668304443, "sibling_score": 0.7834832668304443, "answer_score": null, "sibling_qid": "KOL-2025-07-1819-Q015", "sibling_text": "a e one unit peak pressure and exhaust temp high reason", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Interpreting Pmax, Pcomp and exhaust-temperature changes for timing and combustion", "cross_family": false }, { "answer_id": "EXH-T-HI-002", "score": 0.7767062783241272, "sibling_score": 0.7767062783241272, "answer_score": 0.6036601305007935, "sibling_qid": "KOC-2024-11-1014-Q007", "sibling_text": "main engine one unit exhaust going high how will you find out what s the problem and what does it indicate and how will you decide injector problem or exhaust valve problem", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "One unit exhaust temperature high — causes, checks and actions", "cross_family": false } ] }, { "qid": "MUM-2026-07-3800-Q001", "text": "Cogging of induction motor ?", "family": "Electrical - Motors & Starters", "subtopic": "Induction Motor (General / Working)", "tid": "MUM-2026-07-3800", "tray": "review", "candidates": [ { "answer_id": "IM-GW-C-001", "score": 0.7986152768135071, "sibling_score": 0.7986152768135071, "answer_score": 0.593116557598114, "sibling_qid": "KOL-2017-04-2125-Q006", "sibling_text": "induction motor constructional details cogging", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Cogging, crawling and harmonic effects in induction motors", "cross_family": false }, { "answer_id": "MNS-012", "score": 0.5976039141416549, "sibling_score": null, "answer_score": 0.5976039141416549, "sibling_qid": "", "sibling_text": "cogging and magnetic locking in an induction motor what they are where and why cogging and magnetic locking are the same phenomenon say so do not treat them as two cause rotor slots equal to or an integer multiple of stator slots", "sibling_family": "", "via": "answer_title", "answer_title": "Cogging and magnetic locking in an induction motor — what they are, where, and why", "cross_family": false }, { "answer_id": "ROTSTAT-C-001", "score": 0.5150677323341369, "sibling_score": null, "answer_score": 0.5150677323341369, "sibling_qid": "", "sibling_text": "rotor skewing cogging crawling harmonics skew rotor bars set at an angle to the shaft roughly one stator slot pitch representative figure design set three purposes smooth quiet torque less noise vibration suppress slot harmonics", "sibling_family": "", "via": "answer_title", "answer_title": "Rotor skewing, cogging, crawling & harmonics", "cross_family": false } ] }, { "qid": "MUM-2026-07-3800-Q002", "text": "How many timers in Star delta & detailed function?", "family": "Electrical - Motors & Starters", "subtopic": "Star-Delta Starter", "tid": "MUM-2026-07-3800", "tray": "review", "candidates": [ { "answer_id": "SDST-B-001", "score": 0.7134125828742981, "sibling_score": 0.7134125828742981, "answer_score": 0.3424592584371567, "sibling_qid": "KOC-2025-05-0596-Q013", "sibling_text": "timer function in star delta", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Explain the star-delta control circuit - timer, interlocks, changeover and how the switching point is chosen.", "cross_family": false }, { "answer_id": "IMSP-004", "score": 0.5053645372390747, "sibling_score": 0.5053645372390747, "answer_score": null, "sibling_qid": "MUM-2026-06-3528-Q005", "sibling_text": "star delta components", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Explain the star-delta starter, and what you find inside it when you open it — its components.", "cross_family": false }, { "answer_id": "SDST-A-001", "score": 0.5052331686019897, "sibling_score": 0.5052331686019897, "answer_score": null, "sibling_qid": "KOL-2022-02-2535-Q008", "sibling_text": "6 star delta starter and cross", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Draw and explain the star-delta starter - why star first, the 1/3 figures, advantages, disadvantages and shipboard use.", "cross_family": false } ] }, { "qid": "MUM-2026-07-3800-Q004", "text": "PID with respect to Electronic governor?", "family": "Automation & Controls", "subtopic": "PID / Two-Step / Ratio Control", "tid": "MUM-2026-07-3800", "tray": "review", "candidates": [ { "answer_id": "GOV-P02-005", "score": 0.8446486592292786, "sibling_score": 0.8446486592292786, "answer_score": 0.5097223818302155, "sibling_qid": "KOL-2025-08-2847-Q018", "sibling_text": "pid in electronic governor", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "PID control, loop stability & detuning", "cross_family": false }, { "answer_id": "PID-CTRL-001", "score": 0.7966629862785339, "sibling_score": 0.7966629862785339, "answer_score": null, "sibling_qid": "MUM-2026-07-3804-Q005", "sibling_text": "how pid work in electronic governor", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "What a PID controller is and how it works", "cross_family": false }, { "answer_id": "GOV-P02-001", "score": 0.7179808020591736, "sibling_score": 0.7179808020591736, "answer_score": 0.539201807975769, "sibling_qid": "KOC-2024-10-1414-Q006", "sibling_text": "me electronic governor", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Electronic governor — draw, block diagram & working", "cross_family": false } ] }, { "qid": "MUM-2026-07-3800-Q006", "text": "Function & working of bypass resistor in field winding?", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator Protection", "tid": "MUM-2026-07-3800", "tray": "new", "candidates": [ { "answer_id": "ALT-GEN-P01-001", "score": 0.5948991775512695, "sibling_score": 0.5948991775512695, "answer_score": null, "sibling_qid": "KOL-2026-03-2979-Q001", "sibling_text": "safety protection in alternator he wants to listen fuses in diode and bypass resistor for field winding", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Alternator/generator safeties and protection trips", "cross_family": false }, { "answer_id": "AR-263-004", "score": 0.572991669178009, "sibling_score": 0.572991669178009, "answer_score": null, "sibling_qid": "KOC-2023-07-0203-Q003", "sibling_text": "how to reduce armature reaction interpoles and compensatory winding wer fitted", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "What are interpoles / compensating windings, and how do they help?", "cross_family": false }, { "answer_id": "AR-263-003", "score": 0.5601112246513367, "sibling_score": 0.5601112246513367, "answer_score": null, "sibling_qid": "KOC-2023-10-1291-Q005", "sibling_text": "1 how is it reducing armature reaction", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "How can armature reaction be reduced or prevented?", "cross_family": false } ] }, { "qid": "MUM-2026-07-3801-Q003", "text": "Safety valve pressure setting?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2026-07-3801", "tray": "review", "candidates": [ { "answer_id": "ECON-EGB-004", "score": 0.8259314894676208, "sibling_score": 0.8259314894676208, "answer_score": 0.5996162354946136, "sibling_qid": "KOL-2026-09-4304-Q003", "sibling_text": "safety valve setting", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Safety-valve setting after overhaul & why set higher than the boiler", "cross_family": false }, { "answer_id": "BWTEST-A-001", "score": 0.8103808760643005, "sibling_score": 0.8103808760643005, "answer_score": null, "sibling_qid": "MUM-2026-02-1255-Q006", "sibling_text": "setting of safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false }, { "answer_id": "ACCT-583-B-FINAL-1-002", "score": 0.7808549404144287, "sibling_score": 0.7808549404144287, "answer_score": null, "sibling_qid": "KOL-2026-02-3922-Q005", "sibling_text": "what is lifting of safety valve tell only within 3 percent of designated set pressure nothing else", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Acceptance limits and durations — the accumulation limit, the maximum test periods, and the action if the limit is exceeded", "cross_family": false } ] }, { "qid": "MUM-2026-07-3801-Q004", "text": "Where to take Main bearing clearance and how to remove it?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Main Bearing", "tid": "MUM-2026-07-3801", "tray": "review", "candidates": [ { "answer_id": "MN-BRG-C-003", "score": 0.7666313648223877, "sibling_score": 0.7666313648223877, "answer_score": 0.5432547211647033, "sibling_qid": "KOL-2020-06-3339-Q005", "sibling_text": "removal of main bearing and main thing u ll check before taking clearance", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main bearing clearance and wear-down: measuring and interpreting", "cross_family": false }, { "answer_id": "THRUST-PC-003", "score": 0.6939265131950378, "sibling_score": 0.6939265131950378, "answer_score": null, "sibling_qid": "KOL-2016-11-1255-Q002", "sibling_text": "thrust bearing after removal how will u take clearance", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Taking the thrust clearance (without removing the block)", "cross_family": false }, { "answer_id": "XHD-BRG-C-003", "score": 0.6897143721580505, "sibling_score": 0.6897143721580505, "answer_score": null, "sibling_qid": "KOL-2025-07-4059-Q004", "sibling_text": "crosshead bearing clearance how to remove the main bearing at chain casing side if bearing not coming out what will be action", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "C. Crosshead and guide-shoe clearances: how many, how measured, piston position and why", "cross_family": false } ] }, { "qid": "MUM-2026-07-3802-Q001", "text": "Function of CCU ,fiva and working of angle encode?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "MC-C vs MEB Engine", "tid": "MUM-2026-07-3802", "tray": "new", "candidates": [ { "answer_id": "FIVA-220-003", "score": 0.5351258516311646, "sibling_score": 0.5351258516311646, "answer_score": 0.34059528112411497, "sibling_qid": "KOL-2025-12-2031-Q003", "sibling_text": "fiva working signal angle encoder position signals zero setting of fiva", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "FIVA control signal, controller type, voice-coil drive and fail-safe behaviour", "cross_family": true }, { "answer_id": "ANG-ENC-001", "score": 0.5290675163269043, "sibling_score": 0.5290675163269043, "answer_score": 0.3479618951678276, "sibling_qid": "MUM-2023-11-1066-Q008", "sibling_text": "angle encoder function", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Purpose of the angle encoder on an electronically controlled main engine", "cross_family": true }, { "answer_id": "EICU-MAN-P01-001", "score": 0.5203815698623657, "sibling_score": 0.5203815698623657, "answer_score": null, "sibling_qid": "KOC-2024-03-0991-Q005", "sibling_text": "function of eicu ecu ccu acu angle encoder", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "EICU, ECU, CCU, ACU — the ME control units and what is controlled electronically", "cross_family": true } ] }, { "qid": "MUM-2026-07-3802-Q011", "text": "Rudder drop and cross?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Drop", "tid": "MUM-2026-07-3802", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.6544812321662903, "sibling_score": 0.6544812321662903, "answer_score": 0.42523487806320187, "sibling_qid": "KOL-2025-01-3742-Q007", "sibling_text": "rudder drop", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "RUD-DROP-003", "score": 0.40758143067359925, "sibling_score": null, "answer_score": 0.40758143067359925, "sibling_qid": "", "sibling_text": "rudder drop at the limit the decision verify before acting re measure drop jumping crosshead confirm the datum marks and the newbuilding reference and exclude a set up skeg or keel blocks in way of the skeg reaching the limit is a renewal trigger not a monitor at the maker class maximum the worn component is renewed not run on", "sibling_family": "", "via": "answer_title", "answer_title": "Rudder drop at the limit: the decision", "cross_family": false }, { "answer_id": "SPR-STERN-007", "score": 0.3931707292795181, "sibling_score": null, "answer_score": 0.3931707292795181, "sibling_qid": "", "sibling_text": "rudder types area construction load support turning", "sibling_family": "", "via": "answer_title", "answer_title": "Rudder types, area, construction, load support & turning", "cross_family": false } ] }, { "qid": "MUM-2026-07-3803-Q006", "text": "main engine how torque transmitted to propeller?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Encoders", "tid": "MUM-2026-07-3803", "tray": "review", "candidates": [ { "answer_id": "PROP-RP-002", "score": 0.6815410256385803, "sibling_score": 0.6815410256385803, "answer_score": null, "sibling_qid": "MUM-2026-06-3527-Q005", "sibling_text": "fittings between main engine to propeller shaft", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Propeller fitting — push-up, drop, bedding, dry vs wet", "cross_family": true }, { "answer_id": "THRUST-BRG-B-001", "score": 0.6646543145179749, "sibling_score": 0.6646543145179749, "answer_score": 0.505726820230484, "sibling_qid": "MUM-2025-08-1157-Q002", "sibling_text": "how the propeller thrust is transmitted x ques", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Thrust block — construction, location and how thrust reaches the hull", "cross_family": true }, { "answer_id": "PROP-PN-B-001", "score": 0.6492118835449219, "sibling_score": 0.6492118835449219, "answer_score": 0.5602416336536408, "sibling_qid": "KOL-2021-07-1597-Q005", "sibling_text": "how thrust is being transferred from from propeller to shaft in keyless propeller", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Keyless propeller: principle & thrust transfer", "cross_family": true } ] }, { "qid": "MUM-2026-07-3803-Q007", "text": "T/C how to know internal defects?", "family": "MARPOL - General & Compliance", "subtopic": "Bunker Sample Storage", "tid": "MUM-2026-07-3803", "tray": "new", "candidates": [ { "answer_id": "CASC-COND-005", "score": 0.4184415936470032, "sibling_score": 0.4184415936470032, "answer_score": null, "sibling_qid": "KOC-2026-01-1992-Q007", "sibling_text": "under piston inspection as 2e internal if fo leaks from bunker tk and is it possible to find out it from dump condensor cascade tk chambers and purpose of tk", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Why there is an observation tank and where it is, and the cascade tank and cascade system explained", "cross_family": true }, { "answer_id": "METAL-LOCK-004", "score": 0.4116467833518982, "sibling_score": 0.4116467833518982, "answer_score": null, "sibling_qid": "KOL-2018-08-1400-Q005", "sibling_text": "hole in tc casing told devcon and metal locking was not convinced", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Turbocharger casing crack — semi-permanent repair by metal locking", "cross_family": true }, { "answer_id": "COC-001", "score": 0.4109729528427124, "sibling_score": 0.4109729528427124, "answer_score": null, "sibling_qid": "MUM-2026-05-3187-Q002S3", "sibling_text": "if you have some defects onboard what will be the action of class", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is a Condition of Class? Give examples, say where it is found, how much time is given to rectify it, and what happens if it is not met in time.", "cross_family": true } ] }, { "qid": "MUM-2026-07-3804-Q004", "text": "Thyristor disadvantages?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Thyristor / SCR", "tid": "MUM-2026-07-3804", "tray": "review", "candidates": [ { "answer_id": "SCR-306-A-005", "score": 0.7169076800346375, "sibling_score": 0.7169076800346375, "answer_score": null, "sibling_qid": "KOL-2018-05-2194-Q002", "sibling_text": "one distinct advantage of thyrister", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "SCR as an electronic switch and its advantages", "cross_family": false }, { "answer_id": "SCR-306-A-001", "score": 0.6763659119606018, "sibling_score": 0.6763659119606018, "answer_score": null, "sibling_qid": "CHE-2026-08-3899-Q009", "sibling_text": "thyristors", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What an SCR is and how it works", "cross_family": false }, { "answer_id": "SCR-306-A-004", "score": 0.6658431887626648, "sibling_score": 0.6658431887626648, "answer_score": null, "sibling_qid": "MUM-2022-10-1364-Q002", "sibling_text": "thyristor where used", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Applications and onboard uses", "cross_family": false } ] }, { "qid": "MUM-2026-07-3805-Q001", "text": "How electrically driven cargo pump is located onboard oil tanker?", "family": "Cargo Ops - Tankers", "subtopic": "Cargo Pump (Framo / Eductor)", "tid": "MUM-2026-07-3805", "tray": "review", "candidates": [ { "answer_id": "PR-SAFE-A-004", "score": 0.7338276505470276, "sibling_score": 0.7338276505470276, "answer_score": null, "sibling_qid": "CHE-2026-02-0479-Q015S2", "sibling_text": "cargo pump room wiring arrangement", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Pump-room electrical safety, lighting and portable equipment", "cross_family": false }, { "answer_id": "CPFE-583-016", "score": 0.7259595394134521, "sibling_score": 0.7259595394134521, "answer_score": null, "sibling_qid": "KOC-2025-12-0761-Q007", "sibling_text": "cargo pumping system where is loading pipe inside cargo tanks", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Loading through the pump, flow path and direction of rotation", "cross_family": false }, { "answer_id": "TNK-SAFE-BF26-003", "score": 0.717350423336029, "sibling_score": 0.717350423336029, "answer_score": null, "sibling_qid": "MUM-2025-12-1821-Q003", "sibling_text": "electrical installation inside cargo tank", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What safeties, including electrical safeties and Ex ratings, are provided on the deck of a tanker?", "cross_family": false } ] }, { "qid": "MUM-2026-07-3805-Q006", "text": "What is offset? When will proportional controller reduce offset to zero?", "family": "Automation & Controls", "subtopic": "Set Point / Process Variable", "tid": "MUM-2026-07-3805", "tray": "review", "candidates": [ { "answer_id": "CTRL-TL-003", "score": 0.768856942653656, "sibling_score": 0.768856942653656, "answer_score": 0.4129765838384628, "sibling_qid": "KOL-2024-08-2730-Q005", "sibling_text": "offset in proportional controller", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Feedback, open/closed loop, offset, hysteresis, P-I-D action", "cross_family": false }, { "answer_id": "CTRL-001", "score": 0.6941305994987488, "sibling_score": 0.6941305994987488, "answer_score": null, "sibling_qid": "KOL-2024-02-2696-Q005", "sibling_text": "cascade control system why there is offset in proportional controller", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Cascade control — how it works", "cross_family": false }, { "answer_id": "AUC-CTL-01", "score": 0.5314873099327088, "sibling_score": null, "answer_score": 0.5314873099327088, "sibling_qid": "", "sibling_text": "choosing p pi or pid control p alone leaves an offset proportional to the load change steady state error is inherent to pure proportional action integral reset eliminates offset but slows response and can wind up on prolonged saturation", "sibling_family": "", "via": "answer_title", "answer_title": "Choosing P, PI or PID control", "cross_family": false } ] }, { "qid": "MUM-2026-07-3805-Q008", "text": "Rudder carrier bearing worn out when in port. Actions?", "family": "Steering Gear & Hydraulics", "subtopic": "Tiller / Rudder Stock", "tid": "MUM-2026-07-3805", "tray": "review", "candidates": [ { "answer_id": "PRE-TEN-001", "score": 0.8018101453781128, "sibling_score": 0.8018101453781128, "answer_score": null, "sibling_qid": "MUM-2026-09-3907-Q001", "sibling_text": "rudder carrier bearing replacement in port", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Pre-stressing and pre-tensioning in main-engine bolting", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.6879015564918518, "sibling_score": 0.6879015564918518, "answer_score": 0.5203469157218933, "sibling_qid": "MUM-2026-06-3610-Q003", "sibling_text": "removal of rudder bearing", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "TRS-002", "score": 0.676863968372345, "sibling_score": 0.676863968372345, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false } ] }, { "qid": "MUM-2026-07-3806-Q001", "text": "working of FIVA and CCU and how they communicate?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "MC-C vs MEB Engine", "tid": "MUM-2026-07-3806", "tray": "new", "candidates": [ { "answer_id": "FIVA-220-003", "score": 0.48687544465065, "sibling_score": 0.48687544465065, "answer_score": 0.3099653273820877, "sibling_qid": "KOL-2026-07-4280-Q003", "sibling_text": "about ecu ccu fiva what signals are sent from ecu to ccu", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "FIVA control signal, controller type, voice-coil drive and fail-safe behaviour", "cross_family": false }, { "answer_id": "MEB-MEC-P03-002", "score": 0.4818771481513977, "sibling_score": 0.4818771481513977, "answer_score": null, "sibling_qid": "KOL-2025-12-4074-Q004", "sibling_text": "ecu ccu fiva", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "ME camless control architecture — ECS, CCU, EICU, MPC", "cross_family": false }, { "answer_id": "MEB-MEC-P03-001", "score": 0.478786438703537, "sibling_score": 0.478786438703537, "answer_score": null, "sibling_qid": "KOL-2023-02-4019-Q009", "sibling_text": "fiva elfi valve does me b has ccu", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "ME-B vs ME-C — the core difference", "cross_family": false } ] }, { "qid": "MUM-2026-07-3806-Q004", "text": "Liner ovality and how to know and where u will take clearance?", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "MUM-2026-07-3806", "tray": "new", "candidates": [ { "answer_id": "CYL-LINER-P01-003", "score": 0.6211938261985779, "sibling_score": 0.6211938261985779, "answer_score": null, "sibling_qid": "MUM-2026-03-1312-Q006", "sibling_text": "liner calibration you found that ovality beyond limit what action s you take", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "From the readings: wear, wear rate, units and renewal limits", "cross_family": false }, { "answer_id": "CYL-LINER-P01-004", "score": 0.61543208360672, "sibling_score": 0.61543208360672, "answer_score": 0.47734832167625424, "sibling_qid": "KOC-2024-08-1855-Q006", "sibling_text": "ovality limit of liner", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Ovality: measuring it and reading the cause", "cross_family": false }, { "answer_id": "CYL-LINER-P02-004", "score": 0.6077163815498352, "sibling_score": 0.6077163815498352, "answer_score": null, "sibling_qid": "KOL-2021-07-1599-Q002", "sibling_text": "liner ovality why", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L4 · T044-PART_02-G004High", "cross_family": false } ] }, { "qid": "MUM-2026-07-3807-Q001", "text": "Type of Ship ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-07-3807", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8362272381782532, "sibling_score": 0.8362272381782532, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8015320897102356, "sibling_score": 0.8015320897102356, "answer_score": 0.5472018480300903, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8003027439117432, "sibling_score": 0.8003027439117432, "answer_score": 0.521466538310051, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2026-07-3807-Q003", "text": "Regulation for Main Air Compressor?", "family": "Air Compressor", "subtopic": "MAC / Air Compressor", "tid": "MUM-2026-07-3807", "tray": "review", "candidates": [ { "answer_id": "AC-VE-004", "score": 0.721379816532135, "sibling_score": 0.721379816532135, "answer_score": null, "sibling_qid": "MUM-2026-09-3877-Q006", "sibling_text": "main air compressors requirement", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "How do you determine main-air-compressor capacity or free-air delivery, and the units/conditions?", "cross_family": false }, { "answer_id": "ACSS-001", "score": 0.6978893876075745, "sibling_score": 0.6978893876075745, "answer_score": null, "sibling_qid": "KOC-2026-05-0034-Q006", "sibling_text": "main air compressor safeties", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Main air-compressor safeties, alarms and trips", "cross_family": false }, { "answer_id": "AE-CRP-004", "score": 0.6931837797164917, "sibling_score": 0.6931837797164917, "answer_score": null, "sibling_qid": "CHE-2026-05-0546-Q003", "sibling_text": "main air compressor maintenance", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "AE connecting-rod inspection — ovality, trueness, serrations, action if out of limit", "cross_family": false } ] }, { "qid": "MUM-2026-07-3807-Q005", "text": "Double bottom construction under main engine bedplate?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Bedplate / A-Frame", "tid": "MUM-2026-07-3807", "tray": "review", "candidates": [ { "answer_id": "DBTB-A-002", "score": 0.7238723039627075, "sibling_score": 0.7238723039627075, "answer_score": null, "sibling_qid": "KOL-2025-12-1140-Q003", "sibling_text": "main engine double bottom construction", "sibling_family": "", "via": "sibling", "answer_title": "Double-bottom tanks: purpose, advantages, disadvantages and stability effect", "cross_family": false }, { "answer_id": "CHK-330-004", "score": 0.6023022353649139, "sibling_score": null, "answer_score": 0.6023022353649139, "sibling_qid": "", "sibling_text": "chocking arrangement on the main engine bedplate seating seating thick top plate on longitudinal girders in the double bottom transverse floors beneath supporting chocks under the bedplate flange in way of each holding down bolt near girders and bearing saddles", "sibling_family": "", "via": "answer_title", "answer_title": "Chocking arrangement on the main engine bedplate seating", "cross_family": false }, { "answer_id": "DBTB-A-001", "score": 0.5906590223312378, "sibling_score": 0.5906590223312378, "answer_score": 0.5238029062747955, "sibling_qid": "CHE-2026-02-0107-Q003", "sibling_text": "double bottom construction", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Double-bottom construction and the structural members fitted", "cross_family": true } ] }, { "qid": "MUM-2026-07-3807-Q006", "text": "Annex 2 Cargo Residue discharge criteria and procedure?", "family": "MARPOL - Annex II (NLS)", "subtopic": "Chemical Cargo / P&A Manual", "tid": "MUM-2026-07-3807", "tray": "review", "candidates": [ { "answer_id": "CHEM-PA-007", "score": 0.7253143787384033, "sibling_score": 0.7253143787384033, "answer_score": null, "sibling_qid": "KOC-2025-03-0571-Q013", "sibling_text": "discharge criteria for annex 2 cargo washing", "sibling_family": "MARPOL - Annex II (NLS)", "via": "sibling", "answer_title": "Prewash, tank cleaning, washings, high-viscosity residues and facility refusal", "cross_family": false }, { "answer_id": "CHEM-PA-006", "score": 0.6966071724891663, "sibling_score": 0.6966071724891663, "answer_score": null, "sibling_qid": "KOL-2023-12-0794-Q003", "sibling_text": "if x type cargo what regulation for discharging cargo residues", "sibling_family": "MARPOL - Annex II (NLS)", "via": "sibling", "answer_title": "Category X — special handling, prewash and discharge", "cross_family": false }, { "answer_id": "CHEM-PA-008", "score": 0.6942445039749146, "sibling_score": 0.6942445039749146, "answer_score": null, "sibling_qid": "CHE-2026-02-0109-Q003", "sibling_text": "explain annex 2 discharge criteria what arrangements are given and their dimension discharge criteria for each cargo", "sibling_family": "MARPOL - Annex II (NLS)", "via": "sibling", "answer_title": "Underwater discharge outlet and overboard-line arrangements", "cross_family": false } ] }, { "qid": "MUM-2026-07-3807-Q010", "text": "How to check rudder drop?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Drop", "tid": "MUM-2026-07-3807", "tray": "new", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.6032833456993103, "sibling_score": 0.6032833456993103, "answer_score": 0.3824444115161896, "sibling_qid": "KOC-2026-04-0894-Q008", "sibling_text": "what checks at rudder how you measure drop", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "RUD-DROP-003", "score": 0.3428340196609497, "sibling_score": null, "answer_score": 0.3428340196609497, "sibling_qid": "", "sibling_text": "rudder drop at the limit the decision verify before acting re measure drop jumping crosshead confirm the datum marks and the newbuilding reference and exclude a set up skeg or keel blocks in way of the skeg reaching the limit is a renewal trigger not a monitor at the maker class maximum the worn component is renewed not run on", "sibling_family": "", "via": "answer_title", "answer_title": "Rudder drop at the limit: the decision", "cross_family": false }, { "answer_id": "DROOP-006", "score": 0.313223272562027, "sibling_score": null, "answer_score": 0.313223272562027, "sibling_qid": "", "sibling_text": "droop test verifying the governor s droop setting purpose confirm measured droop equals the set maker specified droop method record no load steady frequency speed then a known loaded steady state frequency speed full load gives the direct figure", "sibling_family": "", "via": "answer_title", "answer_title": "Droop test — verifying the governor's droop setting", "cross_family": false } ] }, { "qid": "MUM-2026-07-3808-Q002", "text": "Main engine bottom end bearing renewal if top half is already removed ? ", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Bearing Clearance", "tid": "MUM-2026-07-3808", "tray": "review", "candidates": [ { "answer_id": "BEB-A-001", "score": 0.7835197448730469, "sibling_score": 0.7835197448730469, "answer_score": 0.5929835647344589, "sibling_qid": "KOC-2025-11-1967-Q001", "sibling_text": "main engine bottom end bearing overhaul", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Removing, overhauling, inspecting and refitting the bottom end bearing", "cross_family": false }, { "answer_id": "MAIN-BRG-B-001", "score": 0.7827966809272766, "sibling_score": 0.7827966809272766, "answer_score": 0.5280308127403259, "sibling_qid": "KOC-2026-05-0012-Q006", "sibling_text": "removal of bottom part of main bearing full process", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you open up / remove / overhaul a main-engine main bearing?", "cross_family": false }, { "answer_id": "MN-BRG-C-001", "score": 0.7755382657051086, "sibling_score": 0.7755382657051086, "answer_score": null, "sibling_qid": "MUM-2025-07-2339-Q002", "sibling_text": "bottom half main bearing removal procedure", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Opening, removing and overhauling a main bearing", "cross_family": false } ] }, { "qid": "MUM-2026-07-3808-Q003", "text": "If 10% Voltage drop then how much torque reduce?", "family": "Electrical - Motors & Starters", "subtopic": "Induction Motor (General / Working)", "tid": "MUM-2026-07-3808", "tray": "review", "candidates": [ { "answer_id": "IM-TRQ-P02-001", "score": 0.7577795386314392, "sibling_score": 0.7577795386314392, "answer_score": null, "sibling_qid": "KOL-2021-03-2440-Q002", "sibling_text": "how much torque will reduce if reduction in 10 voltage", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Factors affecting torque; conditions for maximum torque", "cross_family": false }, { "answer_id": "MNS-018", "score": 0.6260603070259094, "sibling_score": 0.6260603070259094, "answer_score": 0.5635437071323395, "sibling_qid": "KOC-2021-11-0038-Q016", "sibling_text": "motor voltage reduced effects", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "The effect of reduced voltage on a motor", "cross_family": false }, { "answer_id": "DCMOT-A-001", "score": 0.5123669505119324, "sibling_score": 0.5123669505119324, "answer_score": null, "sibling_qid": "KOL-2025-03-2769-Q004", "sibling_text": "excitation is less in dc motors what parameters will change", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types, characteristics and shipboard use of DC motors", "cross_family": false } ] }, { "qid": "MUM-2026-07-3808-Q008", "text": "Influence number?", "family": "Drydock & Underwater Surveys", "subtopic": "Shaft Alignment", "tid": "MUM-2026-07-3808", "tray": "review", "candidates": [ { "answer_id": "DUS-P5-04", "score": 0.7718331813812256, "sibling_score": 0.7718331813812256, "answer_score": null, "sibling_qid": "MUM-2026-05-3268-Q014", "sibling_text": "influence number", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Intermediate shaft — overhaul, oil supply to the bearing, and the influence number", "cross_family": false }, { "answer_id": "SHAFT-ALN-002", "score": 0.7716699242591858, "sibling_score": 0.7716699242591858, "answer_score": null, "sibling_qid": "KOC-2025-10-1947-Q003", "sibling_text": "influence number", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Fair-curve alignment, influence numbers and propeller overhang", "cross_family": false }, { "answer_id": "KGF-A-002", "score": 0.30517697632312774, "sibling_score": null, "answer_score": 0.30517697632312774, "sibling_qid": "", "sibling_text": "frame numbering spacing identification", "sibling_family": "", "via": "answer_title", "answer_title": "Frame numbering, spacing & identification", "cross_family": false } ] }, { "qid": "MUM-2026-07-3809-Q001", "text": "whixh function and status of oral and written?", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2026-07-3809", "tray": "review", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.6993562579154968, "sibling_score": 0.6993562579154968, "answer_score": null, "sibling_qid": "MUM-2026-05-3187-Q001", "sibling_text": "status of other orals and written", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.5018347501754761, "sibling_score": 0.5018347501754761, "answer_score": null, "sibling_qid": "MUM-2026-05-2995-Q001", "sibling_text": "written and oral status type of ship and company", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": true }, { "answer_id": "AE-CRP-005", "score": 0.40276873111724854, "sibling_score": 0.40276873111724854, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q001", "sibling_text": "type of vessel engine make written and oral status", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": true } ] }, { "qid": "MUM-2026-07-3809-Q002", "text": "Type of ship ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-07-3809", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8362272381782532, "sibling_score": 0.8362272381782532, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8015320897102356, "sibling_score": 0.8015320897102356, "answer_score": 0.5472018480300903, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8003027439117432, "sibling_score": 0.8003027439117432, "answer_score": 0.5214664876461029, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2026-07-3809-Q004", "text": "Wht is XLPE ?", "family": "2-Stroke - Components (Other)", "subtopic": "Piston Rings", "tid": "MUM-2026-07-3809", "tray": "new", "candidates": [ { "answer_id": "CABLE-INSUL-D-001", "score": 0.572922945022583, "sibling_score": 0.572922945022583, "answer_score": null, "sibling_qid": "MUM-2026-03-2012-Q004", "sibling_text": "wht is xlpe", "sibling_family": "", "via": "sibling", "answer_title": "Insulation: materials, classes and required properties", "cross_family": false }, { "answer_id": "EXD-EXI-A-002", "score": 0.3618483543395996, "sibling_score": 0.3618483543395996, "answer_score": null, "sibling_qid": "KOL-2024-04-2710-Q003", "sibling_text": "explain exd", "sibling_family": "", "via": "sibling", "answer_title": "Ex d (flameproof / explosion-proof) — construction, shipboard applications and maintenance", "cross_family": false }, { "answer_id": "EPC-P03-001", "score": 0.36099833250045776, "sibling_score": 0.36099833250045776, "answer_score": null, "sibling_qid": "KOC-2024-09-1395-Q009", "sibling_text": "explain plc", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a PLC? Where is it used onboard, what are its advantages, and how does it differ from a conventional relay control panel?", "cross_family": true } ] }, { "qid": "MUM-2026-07-3809-Q009", "text": "how will you remove ACB ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "", "tid": "MUM-2026-07-3809", "tray": "review", "candidates": [ { "answer_id": "CBKR-D-ISORACK-001", "score": 0.6792876720428467, "sibling_score": 0.6792876720428467, "answer_score": 0.28125829845666883, "sibling_qid": "MUM-2026-03-2012-Q009", "sibling_text": "how will you remove acb", "sibling_family": "", "via": "sibling", "answer_title": "How do you safely isolate, rack out, withdraw and prove dead an ACB/VCB before work?", "cross_family": false }, { "answer_id": "CB-ACBVCBSF6-E-001", "score": 0.6093109846115112, "sibling_score": 0.6093109846115112, "answer_score": null, "sibling_qid": "MUM-2026-02-1963-Q007", "sibling_text": "types of acb acb removal complete process", "sibling_family": "", "via": "sibling", "answer_title": "What are the common types of circuit breakers used onboard and where are ACB, MCB, MCCB, VCB and SF6 breakers applied?", "cross_family": false }, { "answer_id": "CAP-CTRL-002", "score": 0.47639378905296326, "sibling_score": 0.47639378905296326, "answer_score": null, "sibling_qid": "KOC-2024-02-2042-Q006", "sibling_text": "ac unloader function", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "CG-002 · How the cylinder-unloader mechanism works", "cross_family": true } ] }, { "qid": "MUM-2026-07-3810-Q008", "text": "What all to be check on main engine in the survey ?", "family": "Surveys - Statutory", "subtopic": "Sample Preparation - Main Engine Survey", "tid": "MUM-2026-07-3810", "tray": "review", "candidates": [ { "answer_id": "SVY-SCOPE-007", "score": 0.7232449650764465, "sibling_score": 0.7232449650764465, "answer_score": 0.43653324246406555, "sibling_qid": "MUM-2026-02-1967-Q007", "sibling_text": "what all to be check on main engine in the survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "How should the Main Engine be prepared for a safety survey?", "cross_family": false }, { "answer_id": "ETP-344-P01-008", "score": 0.559369683265686, "sibling_score": 0.559369683265686, "answer_score": null, "sibling_qid": "MUM-2024-10-0964-Q003", "sibling_text": "test bed checks on main engine how power measured type of dynamomenter used and checks carried out", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Verifying power — shop test, test bed, sea trial", "cross_family": true }, { "answer_id": "CPP-POL-01", "score": 0.5573035478591919, "sibling_score": 0.5573035478591919, "answer_score": null, "sibling_qid": "KOC-2026-08-2148-Q015", "sibling_text": "what parameters do you check when taking main engine performance", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Why and how is a main-engine performance test prepared, taken and assessed?", "cross_family": true } ] }, { "qid": "MUM-2026-07-3811-Q001", "text": "GMDSS and general battery specs ?", "family": "Electrical - Batteries & DC Systems", "subtopic": "GMDSS Battery", "tid": "MUM-2026-07-3811", "tray": "review", "candidates": [ { "answer_id": "bdc-p05-03", "score": 0.763462483882904, "sibling_score": 0.763462483882904, "answer_score": 0.5447346150875091, "sibling_qid": "NOI-2026-08-0017-Q002", "sibling_text": "battery gmdss type", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "CQ-BDC-025 GMDSS reserve battery — requirement, supply, voltage and equipment Medium", "cross_family": false }, { "answer_id": "BDC-P04-05", "score": 0.5531567871570587, "sibling_score": null, "answer_score": 0.5531567871570587, "sibling_qid": "", "sibling_text": "gmdss battery testing it and ordering the replacement statutory anchors solas iv 13 reserve source independent of the ship s main and emergency power endurance 1 hour where a compliant emergency source exists 6 hours where it does not automatic charging capable of recharging to minimum capacity within 10 hours capacity checked at intervals not exceeding 12 months when the ship is not at sea and re", "sibling_family": "", "via": "answer_title", "answer_title": "GMDSS battery — testing it, and ordering the replacement", "cross_family": false }, { "answer_id": "bdc-p05-04", "score": 0.5417613506317138, "sibling_score": null, "answer_score": 0.5417613506317138, "sibling_qid": "", "sibling_text": "cq bdc 027 gmdss emergency and engine starting batteries three systems three rules medium gmdss reserve solas chapter iv the radio distress and safety installations only at least 1 hour or 6 hours where the emergency supply is not adequate to run the radio installations for its required period independent of the ship s system recharged within 10 hours capacity checked at intervals not exceeding 12", "sibling_family": "", "via": "answer_title", "answer_title": "CQ-BDC-027 GMDSS, emergency and engine-starting batteries — three systems, three rules Medium", "cross_family": false } ] }, { "qid": "MUM-2026-07-3811-Q002", "text": "Emergency generator battery checks and specs ?", "family": "Electrical - Batteries & DC Systems", "subtopic": "EDG Starting Battery", "tid": "MUM-2026-07-3811", "tray": "review", "candidates": [ { "answer_id": "BDC-P03-05", "score": 0.7411416172981262, "sibling_score": 0.7411416172981262, "answer_score": null, "sibling_qid": "KOL-2022-11-2624-Q004", "sibling_text": "battery maintenance capacity of emcy generator battery", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "Battery routine maintenance and inspection", "cross_family": false }, { "answer_id": "BDC-P04-04", "score": 0.7369939684867859, "sibling_score": 0.7369939684867859, "answer_score": null, "sibling_qid": "KOL-2022-05-2568-Q002", "sibling_text": "emergency batteries lead acid maintenance how capacity testing is done", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "Battery capacity test — proving the ampere-hours, and the pass result", "cross_family": false }, { "answer_id": "bdc-p05-01", "score": 0.7327311635017395, "sibling_score": 0.7327311635017395, "answer_score": null, "sibling_qid": "MUM-2026-06-3374-Q003", "sibling_text": "what is the voltage rating of emergency battery", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "CQ-BDC-022 Emergency battery on your ship — purpose, type, arrangement and rating Medium", "cross_family": false } ] }, { "qid": "MUM-2026-07-3811-Q004", "text": "LEC and NEMA standards ?", "family": "Electrical - Cables & Insulation", "subtopic": "", "tid": "MUM-2026-07-3811", "tray": "new", "candidates": [ { "answer_id": "CBL-INS-A-001", "score": 0.47717198729515076, "sibling_score": 0.47717198729515076, "answer_score": null, "sibling_qid": "KOC-2023-05-1256-Q007", "sibling_text": "iec standards number for hv and lv", "sibling_family": "", "via": "sibling", "answer_title": "IEC / marine cable standards used for shipboard cables", "cross_family": false }, { "answer_id": "CBL-INS-B-001", "score": 0.4764045476913452, "sibling_score": 0.4764045476913452, "answer_score": null, "sibling_qid": "KOC-2026-08-2144-Q004", "sibling_text": "iec standards cable layers", "sibling_family": "Electrical - Cables & Insulation", "via": "sibling", "answer_title": "IEC and marine cable standards for shipboard cables", "cross_family": false }, { "answer_id": "CABLE-INS-E-005", "score": 0.4654296636581421, "sibling_score": 0.4654296636581421, "answer_score": 0.3508192658424377, "sibling_qid": "KOC-2023-07-1267-Q010", "sibling_text": "electrical equipment standard", "sibling_family": "", "via": "sibling", "answer_title": "Cable properties, safety, standards and condition", "cross_family": false } ] }, { "qid": "MUM-2026-07-3812-Q002", "text": "Short circuit test ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Transformer Theory", "tid": "MUM-2026-07-3812", "tray": "review", "candidates": [ { "answer_id": "XFMR-THY-B-003", "score": 0.69743412733078, "sibling_score": 0.69743412733078, "answer_score": null, "sibling_qid": "MUM-2026-03-2001-Q002", "sibling_text": "short circuit", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Transformer short-circuit (impedance) test and copper-loss measurement", "cross_family": false }, { "answer_id": "IOCT-565-004", "score": 0.6906139850616455, "sibling_score": 0.6906139850616455, "answer_score": 0.37486128509044647, "sibling_qid": "MUM-2026-06-3567-Q006", "sibling_text": "short circuit test", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "How is a short-circuit test carried out?", "cross_family": false }, { "answer_id": "OCR-185-006", "score": 0.6482340097427368, "sibling_score": 0.6482340097427368, "answer_score": 0.3423862010240555, "sibling_qid": "CHE-2026-02-0332-Q014S5", "sibling_text": "short circuit", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "If short-circuit protection fails to operate; how it is checked", "cross_family": true } ] }, { "qid": "MUM-2026-07-3812-Q003", "text": "Soft starter vs delta starter ?", "family": "Electrical - Motors & Starters", "subtopic": "Soft Starter", "tid": "MUM-2026-07-3812", "tray": "review", "candidates": [ { "answer_id": "SOFTSTART-P03-001", "score": 0.7672111392021179, "sibling_score": 0.7672111392021179, "answer_score": 0.5440572381019592, "sibling_qid": "KOL-2021-11-2510-Q005", "sibling_text": "soft starter vs delta starter", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Star-delta starter versus soft starter", "cross_family": false }, { "answer_id": "SOFTSTART-P03-002", "score": 0.5023890286684036, "sibling_score": null, "answer_score": 0.5023890286684036, "sibling_qid": "", "sibling_text": "dol starter versus soft starter dol full line voltage through a single contactor full starting torque inrush 6 8x flc representative it is the motor s locked rotor current simplest cheapest smallest most reliable hard mechanical and electrical shock each start large volt dip on the board", "sibling_family": "", "via": "answer_title", "answer_title": "DOL starter versus soft starter", "cross_family": false }, { "answer_id": "SOFTSTART-P02-003", "score": 0.49334247410297394, "sibling_score": null, "answer_score": 0.49334247410297394, "sibling_qid": "", "sibling_text": "types of starter and types of soft starter starter families dol full voltage star delta autotransformer korndorfer primary resistance reactor rotor resistance slip ring wound rotor motors only electronic soft starter vfd is a separate class running speed control not merely a softer start", "sibling_family": "", "via": "answer_title", "answer_title": "Types of starter, and types of soft starter", "cross_family": false } ] }, { "qid": "MUM-2026-07-3814-Q002", "text": "STATIC AND DYNAMIC LUBRICATION and where ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Hydrodynamic Lubrication", "tid": "MUM-2026-07-3814", "tray": "review", "candidates": [ { "answer_id": "HYDRO-LUB-001", "score": 0.7333695888519287, "sibling_score": 0.7333695888519287, "answer_score": 0.472319620847702, "sibling_qid": "CHE-2026-04-0523-Q006", "sibling_text": "static and dynamic lubrication and where", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "1. Lubrication, tribology & the types of lubrication", "cross_family": false }, { "answer_id": "CYL-LUB-A-002", "score": 0.6405894160270691, "sibling_score": 0.6405894160270691, "answer_score": null, "sibling_qid": "MUM-2025-12-1225-Q006", "sibling_text": "load dependent and rpm dependent lubrication", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Feed-rate control — quantity, timing and load/rpm-dependent dosing", "cross_family": false }, { "answer_id": "HYDRO-LUB-002", "score": 0.6398712992668152, "sibling_score": 0.6398712992668152, "answer_score": 0.4868260771036148, "sibling_qid": "MUM-2025-11-2868-Q012", "sibling_text": "hydro dynamic lubrication", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "2. Hydrodynamic lubrication & oil-wedge formation", "cross_family": false } ] }, { "qid": "MUM-2026-07-3815-Q001", "text": "How to do chocking on new building ship ?", "family": "Drydock & Underwater Surveys", "subtopic": "Class / Special / Annual Survey", "tid": "MUM-2026-07-3815", "tray": "new", "candidates": [ { "answer_id": "DUS-P2-05", "score": 0.5222107172012329, "sibling_score": 0.5222107172012329, "answer_score": null, "sibling_qid": "KOC-2024-08-0398-Q009", "sibling_text": "once ship has placed on blocks what is the first priority to carried out", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "How the ship sits on blocks — keel blocks, side blocks, docking pins", "cross_family": false }, { "answer_id": "DDHSC-002", "score": 0.48993945121765137, "sibling_score": 0.48993945121765137, "answer_score": null, "sibling_qid": "KOL-2017-02-3032-Q001", "sibling_text": "chks to b made on a grounded ships propeller n shafting in dry dock", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Explain the underwater hull inspection and checks carried out as Second Engineer during drydock.", "cross_family": false }, { "answer_id": "DUS-P1-01", "score": 0.4886878430843353, "sibling_score": 0.4886878430843353, "answer_score": null, "sibling_qid": "KOC-2026-01-2087-Q006", "sibling_text": "your ship is entering drydock checks to do as a 2e", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Drydock preparation as 2E — full workflow from office confirmation to entry", "cross_family": false } ] }, { "qid": "MUM-2026-07-3815-Q002", "text": "How to fill oil in hydraulic tank?", "family": "Steering Gear & Hydraulics", "subtopic": "Hydraulic Oil Cleanliness / NAS / ISO Particle Count", "tid": "MUM-2026-07-3815", "tray": "new", "candidates": [ { "answer_id": "REEF-COMP-004", "score": 0.6487059593200684, "sibling_score": 0.6487059593200684, "answer_score": 0.5406927466392517, "sibling_qid": "MUM-2026-01-1242-Q011", "sibling_text": "refer oil charging method", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Charging, replenishing and draining compressor lube oil — including with no charging pump", "cross_family": true }, { "answer_id": "LO-SUMP-005", "score": 0.6406512260437012, "sibling_score": 0.6406512260437012, "answer_score": null, "sibling_qid": "MUM-2025-01-2790-Q009", "sibling_text": "me sump oil fill action as 2e", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main-engine sump oil filling / make-up — action as 2nd engineer", "cross_family": true }, { "answer_id": "CYL-LUB-A-002", "score": 0.6068257093429565, "sibling_score": 0.6068257093429565, "answer_score": null, "sibling_qid": "KOL-2021-02-3378-Q006", "sibling_text": "lubrication oil service tank to the cyl how quantity of lubrication oil is", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Feed-rate control — quantity, timing and load/rpm-dependent dosing", "cross_family": true } ] }, { "qid": "MUM-2026-07-3816-Q002", "text": "How to paint rudder in DD ?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Painting", "tid": "MUM-2026-07-3816", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.6979089379310608, "sibling_score": 0.6979089379310608, "answer_score": 0.3816808551549911, "sibling_qid": "MUM-2026-05-3150-Q003", "sibling_text": "rudder internal painting", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "HULL-PAINT-002", "score": 0.6979089379310608, "sibling_score": 0.6979089379310608, "answer_score": null, "sibling_qid": "CHE-2026-02-0110-Q012", "sibling_text": "rudder internal painting", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Types of hull coating, the paint scheme by section, and why each is used", "cross_family": false }, { "answer_id": "TRS-002", "score": 0.5325882434844971, "sibling_score": 0.5325882434844971, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false } ] }, { "qid": "MUM-2026-07-3817-Q002", "text": "t/c k, l, m value ?", "family": "Electrical - Motors & Starters", "subtopic": "IR Test / Insulation Resistance", "tid": "MUM-2026-07-3817", "tray": "new", "candidates": [ { "answer_id": "TC-KLM-330-002", "score": 0.5742571949958801, "sibling_score": 0.5742571949958801, "answer_score": null, "sibling_qid": "MUM-2025-05-0273-Q016", "sibling_text": "what is k value in t c", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "What is the K value, why is it important, and what happens if it is wrong?", "cross_family": true }, { "answer_id": "TC-KLM-330-003", "score": 0.4982113540172577, "sibling_score": 0.4982113540172577, "answer_score": 0.2866647750139236, "sibling_qid": "MUM-2024-11-2256-Q003", "sibling_text": "procedure and reasons for finding k value of t c", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Finding the K value during overhaul — procedure, and the reasons for taking it", "cross_family": true }, { "answer_id": "FLD-601-003", "score": 0.4609000086784363, "sibling_score": 0.4609000086784363, "answer_score": null, "sibling_qid": "KOC-2025-12-0766-Q003", "sibling_text": "lel values", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What are LEL, LFL, UFL and HFL, and what are their values?", "cross_family": true } ] }, { "qid": "MUM-2026-07-3817-Q005", "text": "slot welding?", "family": "Workshop & Welding", "subtopic": "Welding / Brazing / Soldering", "tid": "MUM-2026-07-3817", "tray": "review", "candidates": [ { "answer_id": "WELD-B-010", "score": 0.7743911147117615, "sibling_score": 0.7743911147117615, "answer_score": 0.48119908571243286, "sibling_qid": "KOL-2019-07-1464-Q004", "sibling_text": "what is slot welding", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Weld joint types and selection — butt, lap, slot and others", "cross_family": false }, { "answer_id": "PW-327-001", "score": 0.6865029335021973, "sibling_score": 0.6865029335021973, "answer_score": null, "sibling_qid": "KOL-2019-04-3231-Q006", "sibling_text": "what is slot welding how to decide electrode size to weld on 12 mm steel plate", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "1. Electrode size and welding current selection", "cross_family": false }, { "answer_id": "WELD-DEF-002", "score": 0.652960479259491, "sibling_score": 0.652960479259491, "answer_score": null, "sibling_qid": "KOL-2019-06-3247-Q002", "sibling_text": "slot welding and what ndt u will prefer for welding defects", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Tests and NDT to detect weld defects", "cross_family": false } ] }, { "qid": "MUM-2026-07-3818-Q003", "text": "Types of stern tube ?", "family": "Drydock & Underwater Surveys", "subtopic": "Stern Tube / Tail Shaft", "tid": "MUM-2026-07-3818", "tray": "review", "candidates": [ { "answer_id": "STS-P02-003", "score": 0.7573462128639221, "sibling_score": 0.7573462128639221, "answer_score": 0.4912650495767593, "sibling_qid": "MUM-2026-05-3237-Q014", "sibling_text": "types of stern tube", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "STS-P02-03 - Stern tube arrangement, fitting in hull and shaft support", "cross_family": false }, { "answer_id": "STS-P02-004", "score": 0.6675650477409363, "sibling_score": 0.6675650477409363, "answer_score": null, "sibling_qid": "MUM-2023-06-2735-Q004", "sibling_text": "type of lagging used in stern tube", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "STS-P02-04 - Tail shaft design, bearing materials and bending support", "cross_family": false }, { "answer_id": "STT-BRG-002", "score": 0.5580179929733277, "sibling_score": null, "answer_score": 0.5580179929733277, "sibling_qid": "", "sibling_text": "1 stern tube arrangement function materials and types", "sibling_family": "", "via": "answer_title", "answer_title": "1. Stern tube — arrangement, function, materials and types", "cross_family": false } ] }, { "qid": "MUM-2026-07-3818-Q004", "text": "How will you paint the rudder externally and internally ?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Painting", "tid": "MUM-2026-07-3818", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.7517918944358826, "sibling_score": 0.7517918944358826, "answer_score": null, "sibling_qid": "MUM-2026-05-3150-Q003", "sibling_text": "rudder internal painting", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "HULL-PAINT-002", "score": 0.7517918944358826, "sibling_score": 0.7517918944358826, "answer_score": null, "sibling_qid": "CHE-2026-02-0110-Q012", "sibling_text": "rudder internal painting", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Types of hull coating, the paint scheme by section, and why each is used", "cross_family": false }, { "answer_id": "AIRBTL-CORR-001", "score": 0.539201021194458, "sibling_score": 0.539201021194458, "answer_score": null, "sibling_qid": "KOL-2024-03-1775-Q005", "sibling_text": "air bottle inspection 2 rudder inspection painting why 2 45 m", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "AIRBTL-CORR-01 — Air bottle survey and internal inspection — preparation, checks and what you show the surveyor", "cross_family": true } ] }, { "qid": "MUM-2026-07-3819-Q002", "text": "STATIC AND DYNAMIC LUBRICATION and where ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Hydrodynamic Lubrication", "tid": "MUM-2026-07-3819", "tray": "review", "candidates": [ { "answer_id": "HYDRO-LUB-001", "score": 0.7333695888519287, "sibling_score": 0.7333695888519287, "answer_score": 0.472319620847702, "sibling_qid": "CHE-2026-04-0523-Q006", "sibling_text": "static and dynamic lubrication and where", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "1. Lubrication, tribology & the types of lubrication", "cross_family": false }, { "answer_id": "CYL-LUB-A-002", "score": 0.6405894756317139, "sibling_score": 0.6405894756317139, "answer_score": null, "sibling_qid": "MUM-2025-12-1225-Q006", "sibling_text": "load dependent and rpm dependent lubrication", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Feed-rate control — quantity, timing and load/rpm-dependent dosing", "cross_family": false }, { "answer_id": "HYDRO-LUB-002", "score": 0.6398712992668152, "sibling_score": 0.6398712992668152, "answer_score": 0.48682612776756284, "sibling_qid": "MUM-2025-11-2868-Q012", "sibling_text": "hydro dynamic lubrication", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "2. Hydrodynamic lubrication & oil-wedge formation", "cross_family": false } ] }, { "qid": "MUM-2026-07-3819-Q012", "text": "Bonding of stern tube seal.", "family": "Drydock & Underwater Surveys", "subtopic": "Stern Tube / Tail Shaft", "tid": "MUM-2026-07-3819", "tray": "review", "candidates": [ { "answer_id": "STERN-P03-002", "score": 0.7562025189399719, "sibling_score": 0.7562025189399719, "answer_score": 0.49626765847206117, "sibling_qid": "CHE-2026-04-0523-Q004", "sibling_text": "bonding of stern tube seal explanation vulcanization method of joining rubber seal", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Stern-tube seals: arrangement, air/lip seals, renewal/replacement and the vulcanized split-seal fitting method", "cross_family": false }, { "answer_id": "STS-P02-006", "score": 0.6672990918159485, "sibling_score": 0.6672990918159485, "answer_score": 0.4842386186122894, "sibling_qid": "KOL-2022-01-1658-Q002", "sibling_text": "stern tube seal all major parts and properties development", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "STS-P02-06 - Stern tube seals, integrity test, sleeve wasting and afloat repair", "cross_family": false }, { "answer_id": "STERN-TUBE-P04-002", "score": 0.6552450060844421, "sibling_score": 0.6552450060844421, "answer_score": 0.4651595890522003, "sibling_qid": "KOL-2025-03-3764-Q003", "sibling_text": "stern tube seal integrity", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Stern tube and seal integrity tests after survey and while underway", "cross_family": false } ] }, { "qid": "MUM-2026-07-3819-Q014", "text": "Purpose of nitrogen bottle in cranes.", "family": "Auxiliary Equipment", "subtopic": "Crane", "tid": "MUM-2026-07-3819", "tray": "review", "candidates": [ { "answer_id": "AUX-CRANE-002", "score": 0.7750268578529358, "sibling_score": 0.7750268578529358, "answer_score": null, "sibling_qid": "CHE-2026-04-0523-Q005", "sibling_text": "purpose of nitrogen bottle in cranes key ans to charge accumulator need to be charged and pressurized always so that in case of electrical power fail crane can be operated", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Crane brakes, electromagnetic and hydrodynamic brakes, fail-safe arrangements, limit switches, stoppers and accumulators", "cross_family": false }, { "answer_id": "LPG-LNG-006", "score": 0.5771219730377197, "sibling_score": 0.5771219730377197, "answer_score": 0.4318197727203369, "sibling_qid": "MUM-2026-08-3860-Q008", "sibling_text": "nitrogen generator working", "sibling_family": "", "via": "sibling", "answer_title": "Nitrogen generator, dry IG, and padding on gas carriers", "cross_family": false }, { "answer_id": "CRANE-ER-001", "score": 0.5667519569396973, "sibling_score": 0.5667519569396973, "answer_score": null, "sibling_qid": "MUM-2025-10-2857-Q004", "sibling_text": "er crane securing", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Pre-use safety, maintenance & certification checks on the ER crane", "cross_family": false } ] }, { "qid": "MUM-2026-07-3820-Q004", "text": "What vessel you sailed on?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-07-3820", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.7390221953392029, "sibling_score": 0.7390221953392029, "answer_score": null, "sibling_qid": "MUM-2026-06-3479-Q001", "sibling_text": "what kind of ship sailed on", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "CHEM-PA-011", "score": 0.7382662296295166, "sibling_score": 0.7382662296295166, "answer_score": null, "sibling_qid": "MUM-2026-03-2938-Q002", "sibling_text": "which vessel", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "What ‘en route’ means for Annex II discharge", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7165533900260925, "sibling_score": 0.7165533900260925, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false } ] }, { "qid": "MUM-2026-07-3821-Q003", "text": "How rudder is connected to earthing?", "family": "SOLAS", "subtopic": "Earthing / Neutral / NER", "tid": "MUM-2026-07-3821", "tray": "new", "candidates": [ { "answer_id": "TRS-002", "score": 0.5615824460983276, "sibling_score": 0.5615824460983276, "answer_score": null, "sibling_qid": "KOC-2026-05-0004-Q005", "sibling_text": "how rudder is connected to rudder carrier bearing", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": true }, { "answer_id": "SGD-004", "score": 0.5427132844924927, "sibling_score": 0.5427132844924927, "answer_score": 0.4553367614746094, "sibling_qid": "MUM-2025-11-1757-Q003", "sibling_text": "bonding answer intermediate shaft earth bonding and rudder stock bond to hull to makeing all cathodic to prevent corrosion and also used for prevention of main engine bearing from pitting by discharge static charges to hull", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "What is bonding / the bonding-strap arrangement on ship shafting, rudder stock, or hull-connected equipment?", "cross_family": true }, { "answer_id": "EARTH-NEU-02A-001", "score": 0.5079473853111267, "sibling_score": 0.5079473853111267, "answer_score": null, "sibling_qid": "MUM-2025-11-2875-Q011", "sibling_text": "how earthing is done direct or something will there in between earth neutral resistor", "sibling_family": "", "via": "sibling", "answer_title": "Earthed (neutral-earth) system — what it is, why we use it, pros and cons", "cross_family": false } ] }, { "qid": "MUM-2026-07-3821-Q005", "text": "name any 6 codes IMO ?", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "MUM-2026-07-3821", "tray": "new", "candidates": [ { "answer_id": "IMO-CODES-P03-001", "score": 0.5627896785736084, "sibling_score": 0.5627896785736084, "answer_score": null, "sibling_qid": "MUM-2026-06-3385-Q007", "sibling_text": "tell me 6 codes under solas", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Important IMO conventions and codes: parent links", "cross_family": true }, { "answer_id": "ISM-ELEM-002", "score": 0.5352278351783752, "sibling_score": 0.5352278351783752, "answer_score": null, "sibling_qid": "MUM-2026-03-0822-Q002", "sibling_text": "ism codes", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the ISM Code?", "cross_family": false }, { "answer_id": "ENG-NOM-004", "score": 0.3450583189725876, "sibling_score": null, "answer_score": 0.3450583189725876, "sibling_qid": "", "sibling_text": "decode every letter and number 6s60mc c and 6s70me c 6 number of cylinders s stroke type super long stroke the stroke letter family is k l s g short to long", "sibling_family": "", "via": "answer_title", "answer_title": "Decode every letter and number: 6S60MC-C and 6S70ME-C", "cross_family": false } ] }, { "qid": "MUM-2026-07-3822-Q007", "text": "Construction of Chemical tanker ?", "family": "Cargo Ops - Tankers", "subtopic": "Cargo Tank Construction", "tid": "MUM-2026-07-3822", "tray": "review", "candidates": [ { "answer_id": "COT-04", "score": 0.850422203540802, "sibling_score": 0.850422203540802, "answer_score": 0.5907354027032852, "sibling_qid": "MUM-2026-04-0919-Q008", "sibling_text": "construction of chemical tanker", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Chemical-tanker midship section and cargo-tank construction", "cross_family": false }, { "answer_id": "TKR-TYPE-001", "score": 0.8231343626976013, "sibling_score": 0.8231343626976013, "answer_score": null, "sibling_qid": "MUM-2026-05-3315-Q002", "sibling_text": "construction of oil chem tanker", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "1. Crude oil tanker vs product tanker / carrier — construction and cargo-area differences", "cross_family": false }, { "answer_id": "COT-02", "score": 0.8126637935638428, "sibling_score": 0.8126637935638428, "answer_score": 0.5789805054664612, "sibling_qid": "CHE-2026-09-3928-Q006", "sibling_text": "construction between oil tanker and chemical tanker", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Oil tanker versus chemical tanker construction", "cross_family": false } ] }, { "qid": "MUM-2026-07-3823-Q002", "text": "Annex 3 of MARPOL ?", "family": "MARPOL - Annex III", "subtopic": "", "tid": "MUM-2026-07-3823", "tray": "review", "candidates": [ { "answer_id": "SEW-DISCH-004", "score": 0.7597905993461609, "sibling_score": 0.7597905993461609, "answer_score": null, "sibling_qid": "MUM-2026-04-0915-Q003", "sibling_text": "annex 3 of marpol", "sibling_family": "MARPOL - Annex III", "via": "sibling", "answer_title": "4. Annex IV requirements, equipment, documents and recent amendments", "cross_family": false }, { "answer_id": "MARPOL-OV-003", "score": 0.6749870777130127, "sibling_score": 0.6749870777130127, "answer_score": 0.5211709141731262, "sibling_qid": "MUM-2026-09-3916-Q003", "sibling_text": "marpol annexes all", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "General overview of MARPOL and all annexes", "cross_family": true }, { "answer_id": "AVICERT-006", "score": 0.6658125519752502, "sibling_score": 0.6658125519752502, "answer_score": null, "sibling_qid": "KOC-2026-09-2168-Q012", "sibling_text": "marpol annex 3 certificate name internal ques", "sibling_family": "MARPOL - Annex III", "via": "sibling", "answer_title": "What certificates are carried on board under all the MARPOL annexes, Annex I to Annex VI?", "cross_family": false } ] }, { "qid": "MUM-2026-07-3823-Q003", "text": "SOLAS chapter 7,8 ?", "family": "SOLAS - General", "subtopic": "", "tid": "MUM-2026-07-3823", "tray": "review", "candidates": [ { "answer_id": "SOLAS-OVW-008", "score": 0.6673677563667297, "sibling_score": 0.6673677563667297, "answer_score": null, "sibling_qid": "MUM-2026-04-0915-Q004", "sibling_text": "solas chapter 7 8", "sibling_family": "SOLAS - General (HOLD)", "via": "sibling", "answer_title": "SOLAS Chapter VII — carriage of dangerous goods", "cross_family": true }, { "answer_id": "SOLAS-OVW-009", "score": 0.616820752620697, "sibling_score": 0.616820752620697, "answer_score": null, "sibling_qid": "MUM-2026-06-3562-Q003", "sibling_text": "solas chapter 8", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "SOLAS Chapter IX — ISM Code (safe operation)", "cross_family": true }, { "answer_id": "SOLAS-CH-010", "score": 0.6069568395614624, "sibling_score": 0.6069568395614624, "answer_score": null, "sibling_qid": "KOC-2023-08-0213-Q008", "sibling_text": "solas chapter 7", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS Chapter VII - carriage of dangerous goods", "cross_family": true } ] }, { "qid": "MUM-2026-07-3823-Q004", "text": "MLC title ?", "family": "MLC", "subtopic": "MLC / DMLC / Work-Rest", "tid": "MUM-2026-07-3823", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.6168531775474548, "sibling_score": 0.6168531775474548, "answer_score": 0.2743314981460571, "sibling_qid": "KOC-2026-05-2135-Q011", "sibling_text": "mlc titles explain title 1 explain dmlc part 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "MLC-WRH-B-006", "score": 0.5370091199874878, "sibling_score": 0.5370091199874878, "answer_score": null, "sibling_qid": "MUM-2026-07-3680-Q005", "sibling_text": "what is mlc certificate under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false }, { "answer_id": "MLC-WRH-B-007", "score": 0.4721701443195343, "sibling_score": 0.4721701443195343, "answer_score": null, "sibling_qid": "MUM-2026-01-0701-Q002", "sibling_text": "detainable deficiency of mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false } ] }, { "qid": "MUM-2026-07-3824-Q001", "text": "Engine of your last ship ?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-07-3824", "tray": "review", "candidates": [ { "answer_id": "ILK-318-001", "score": 0.6928257346153259, "sibling_score": 0.6928257346153259, "answer_score": null, "sibling_qid": "MUM-2022-09-1021-Q005", "sibling_text": "interlocks in me engine in your last ship", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "1. What are the main engine interlocks?", "cross_family": true }, { "answer_id": "ETP-344-P01-001", "score": 0.6911637783050537, "sibling_score": 0.6911637783050537, "answer_score": null, "sibling_qid": "CHE-2026-09-3912-Q001", "sibling_text": "what was the power of your last ship s engine tell me about your last ship main engine what are all the details about it mentioned in the first page of your engine manual tell me everything", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ETP-344-P03-003", "score": 0.6846686601638794, "sibling_score": 0.6846686601638794, "answer_score": null, "sibling_qid": "KOC-2025-08-1938-Q005", "sibling_text": "last ship engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Engine nomenclature, layout, mark number and engine constant", "cross_family": true } ] }, { "qid": "MUM-2026-07-3824-Q004", "text": "Explain purifier coupling arrangement ?", "family": "Purifier & Centrifuges", "subtopic": "FO/LO/DO Purifier", "tid": "MUM-2026-07-3824", "tray": "review", "candidates": [ { "answer_id": "PURIF-172-001", "score": 0.7894284129142761, "sibling_score": 0.7894284129142761, "answer_score": null, "sibling_qid": "MUM-2026-05-3184-Q004", "sibling_text": "explain purifier coupling arrangement", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Purifier not picking up speed — drive, clutch, brake, shear pin", "cross_family": false }, { "answer_id": "PARD-330-003", "score": 0.6001594662666321, "sibling_score": 0.6001594662666321, "answer_score": null, "sibling_qid": "MUM-2026-06-3416-Q008", "sibling_text": "pairing disc function in purifier", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "How does the paring disc work, and on what principle does it operate?", "cross_family": false }, { "answer_id": "PARD-330-002", "score": 0.5827869176864624, "sibling_score": 0.5827869176864624, "answer_score": 0.43875353932380673, "sibling_qid": "MUM-2023-05-2169-Q003", "sibling_text": "how many pairing discs are present in a purifier explain functions of both the pairing discs", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "How many paring discs are fitted in a purifier, and what does each one do?", "cross_family": false } ] }, { "qid": "MUM-2026-07-3824-Q005", "text": "What is static and dynamic lubrication ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Hydrodynamic Lubrication", "tid": "MUM-2026-07-3824", "tray": "review", "candidates": [ { "answer_id": "HYDRO-LUB-001", "score": 0.7534428238868713, "sibling_score": 0.7534428238868713, "answer_score": 0.4880088269710541, "sibling_qid": "MUM-2026-05-3174-Q008", "sibling_text": "static and dynamic lubrication", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "1. Lubrication, tribology & the types of lubrication", "cross_family": false }, { "answer_id": "CYL-LUB-A-002", "score": 0.6582402586936951, "sibling_score": 0.6582402586936951, "answer_score": null, "sibling_qid": "MUM-2024-05-1080-Q004", "sibling_text": "rpm dependent lubrication and load dependent lubrication", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Feed-rate control — quantity, timing and load/rpm-dependent dosing", "cross_family": false }, { "answer_id": "HYDRO-LUB-002", "score": 0.64391028881073, "sibling_score": 0.64391028881073, "answer_score": 0.49250849485397336, "sibling_qid": "MUM-2025-11-2868-Q012", "sibling_text": "hydro dynamic lubrication", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "2. Hydrodynamic lubrication & oil-wedge formation", "cross_family": false } ] }, { "qid": "MUM-2026-07-3825-Q001", "text": "Types of Ships sailed on ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-07-3825", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8006172776222229, "sibling_score": 0.8006172776222229, "answer_score": null, "sibling_qid": "CHE-2026-09-3938-Q001", "sibling_text": "types of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.7699335217475891, "sibling_score": 0.7699335217475891, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.4987913310527801, "sibling_score": null, "answer_score": 0.4987913310527801, "sibling_qid": "", "sibling_text": "type a and type b ships how form and cargo set the freeboard", "sibling_family": "", "via": "answer_title", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "MUM-2026-07-3825-Q002", "text": "Stern tube Seal removal ?", "family": "Drydock & Underwater Surveys", "subtopic": "Stern Tube / Tail Shaft", "tid": "MUM-2026-07-3825", "tray": "review", "candidates": [ { "answer_id": "STERN-P03-002", "score": 0.7108625769615173, "sibling_score": 0.7108625769615173, "answer_score": 0.5058724790811538, "sibling_qid": "MUM-2025-08-1151-Q013", "sibling_text": "stern tube seal replace", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Stern-tube seals: arrangement, air/lip seals, renewal/replacement and the vulcanized split-seal fitting method", "cross_family": false }, { "answer_id": "STS-P02-006", "score": 0.6940416693687439, "sibling_score": 0.6940416693687439, "answer_score": 0.4995742917060852, "sibling_qid": "MUM-2026-06-3617-Q004", "sibling_text": "how to change seals in a stern tube", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "STS-P02-06 - Stern tube seals, integrity test, sleeve wasting and afloat repair", "cross_family": false }, { "answer_id": "STERN-TUBE-P04-001", "score": 0.6733397841453552, "sibling_score": 0.6733397841453552, "answer_score": null, "sibling_qid": "MUM-2026-09-3883-Q007", "sibling_text": "action if stern tube seal is leaking", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Stern tube or seal leakage at sea: diagnosis and 2/E actions", "cross_family": false } ] }, { "qid": "MUM-2026-07-3826-Q001", "text": "Type of ship and type of engine", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "MUM-2026-07-3826", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8339246511459351, "sibling_score": 0.8339246511459351, "answer_score": null, "sibling_qid": "MUM-2025-08-2357-Q001", "sibling_text": "type of ship type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.8214007019996643, "sibling_score": 0.8214007019996643, "answer_score": null, "sibling_qid": "MUM-2026-07-3668-Q004", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7602875232696533, "sibling_score": 0.7602875232696533, "answer_score": null, "sibling_qid": "KOL-2025-12-2031-Q002", "sibling_text": "type of ship and engine sailed engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "MUM-2026-07-3826-Q003", "text": "How to check vertical shaft height of purifier ?", "family": "Purifier & Centrifuges", "subtopic": "Purifier Operation / Bowl", "tid": "MUM-2026-07-3826", "tray": "review", "candidates": [ { "answer_id": "PURIF-BOWL-P02-003", "score": 0.8255736231803894, "sibling_score": 0.8255736231803894, "answer_score": 0.40147335976362225, "sibling_qid": "MUM-2026-05-3237-Q013", "sibling_text": "how to check vertical shaft height of purifier", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Vertical shaft, bowl height, bearings & load support — checks, adjustment, overhaul, renewal", "cross_family": false }, { "answer_id": "PUR-DSL-002", "score": 0.7748039364814758, "sibling_score": 0.7748039364814758, "answer_score": null, "sibling_qid": "MUM-2026-05-3000-Q009", "sibling_text": "purifier vertical height how to measure", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Purifier overflow after desludging — causes, and checking or adjusting bowl height", "cross_family": false }, { "answer_id": "PUR-OPS-P01-002", "score": 0.7544836401939392, "sibling_score": 0.7544836401939392, "answer_score": null, "sibling_qid": "CHE-2026-03-0494-Q001", "sibling_text": "purifier overhaul vertical height what you will check", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Purifier — principle, working, and how the self-cleaning bowl closes", "cross_family": false } ] }, { "qid": "MUM-2026-07-3826-Q006", "text": "What is nomogram ?", "family": "Purifier & Centrifuges", "subtopic": "Purifier Operation / Bowl", "tid": "MUM-2026-07-3826", "tray": "review", "candidates": [ { "answer_id": "PUR-OPS-P01-003", "score": 0.7339861392974854, "sibling_score": 0.7339861392974854, "answer_score": null, "sibling_qid": "MUM-2026-05-3237-Q016", "sibling_text": "what is nomogram", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Gravity disc, E-line and the oil-water interface — purpose, selection, and the effect of a shift", "cross_family": false }, { "answer_id": "PIPE-MAT-003", "score": 0.4787173271179199, "sibling_score": 0.4787173271179199, "answer_score": 0.3253114625811577, "sibling_qid": "KOC-2026-08-2158-Q005", "sibling_text": "what is nominal dia", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Nominal diameter / bore, ND, NPS — and 100A, 250A", "cross_family": true }, { "answer_id": "WIDAS-SMK-003", "score": 0.45720386505126953, "sibling_score": 0.45720386505126953, "answer_score": null, "sibling_qid": "KOC-2024-06-1365-Q014", "sibling_text": "diagram", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "WIDAS arrangement — sensors, levels, panel and repeater", "cross_family": true } ] }, { "qid": "MUM-2026-07-3838-Q001", "text": "Written status", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-07-3838", "tray": "new", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.6061047911643982, "sibling_score": 0.6061047911643982, "answer_score": null, "sibling_qid": "MUM-2026-03-1294-Q001", "sibling_text": "status of writtens and orals", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": true }, { "answer_id": "EXHV-P01-001", "score": 0.5802151560783386, "sibling_score": 0.5802151560783386, "answer_score": null, "sibling_qid": "KOC-2026-08-2106-Q001", "sibling_text": "status of written oral company type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "FLAG-ST-001", "score": 0.5045207738876343, "sibling_score": 0.5045207738876343, "answer_score": null, "sibling_qid": "KOL-2025-08-1003-Q005", "sibling_text": "flag state", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Flag State — authority, role, duties and requirements", "cross_family": true } ] }, { "qid": "MUM-2026-07-3838-Q003", "text": "Life Boat static test how calculate 1.5 ?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Lifeboat Static / Dynamic Test", "tid": "MUM-2026-07-3838", "tray": "new", "candidates": [ { "answer_id": "LBT-TEST-B-002", "score": 0.6130407452583313, "sibling_score": 0.6130407452583313, "answer_score": null, "sibling_qid": "KOC-2025-12-0763-Q009", "sibling_text": "both test on 5 year in life boat", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Annual and 5-yearly lifeboat/davit tests (the servicing regime)", "cross_family": false }, { "answer_id": "LB-SDT-A-001", "score": 0.6072965264320374, "sibling_score": 0.6072965264320374, "answer_score": 0.4429359495639801, "sibling_qid": "KOC-2022-01-0045-Q009", "sibling_text": "lifeboat static and dynamic test int", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat static and dynamic test — purpose and procedure", "cross_family": false }, { "answer_id": "LBT-TEST-B-001", "score": 0.5914207696914673, "sibling_score": 0.5914207696914673, "answer_score": 0.39562319368124005, "sibling_qid": "KOC-2026-09-2220-Q004", "sibling_text": "life boat davit test how you make 1 5 and 1 1 times of max load how load is distributed", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat/davit load-test proof loads and test conditions", "cross_family": false } ] }, { "qid": "MUM-2026-07-3838-Q006", "text": "cii rating formula ? what is value of z in cii ? ", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "CII / Carbon Intensity", "tid": "MUM-2026-07-3838", "tray": "new", "candidates": [ { "answer_id": "SEEMP-123-B-001", "score": 0.5721549987792969, "sibling_score": 0.5721549987792969, "answer_score": null, "sibling_qid": "MUM-2026-05-3180-Q004", "sibling_text": "enhanced seemp basically seemp p 3 cii formula z values unit of cii", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP Part III — the ship's operational carbon-intensity (CII) plan", "cross_family": false }, { "answer_id": "CII-RATE-P02-001", "score": 0.5390951633453369, "sibling_score": 0.5390951633453369, "answer_score": 0.2848418354988098, "sibling_qid": "MUM-2025-10-0515-Q002", "sibling_text": "cii rating", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "1. The CII rating scale A to E — what each rating means", "cross_family": false }, { "answer_id": "CII-CALC-P03-001", "score": 0.538672924041748, "sibling_score": 0.538672924041748, "answer_score": 0.2819028705358505, "sibling_qid": "MUM-2026-07-3859-Q003", "sibling_text": "cii rating formula for attained and required cii", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Calculating attained & required CII — formula, unit, reduction factor, measurements", "cross_family": false } ] }, { "qid": "MUM-2026-07-3838-Q011", "text": "Then bunker fuel 0.53 sulphur what you do I said can use then internal asked valve 0.531", "family": "Cargo Ops - Tankers", "subtopic": "Mast Riser / Deck Seal / P/V Valve", "tid": "MUM-2026-07-3838", "tray": "review", "candidates": [ { "answer_id": "SOX-LIMIT-004", "score": 0.7207808494567871, "sibling_score": 0.7207808494567871, "answer_score": null, "sibling_qid": "MUM-2026-02-0771-Q004", "sibling_text": "then bunker fuel 0 53 sulfur what you do", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Compliant fuel unavailable or off-spec — FONAR", "cross_family": true }, { "answer_id": "SOX-LIMIT-001", "score": 0.5675449371337891, "sibling_score": 0.5675449371337891, "answer_score": null, "sibling_qid": "KOL-2019-08-0309-Q006", "sibling_text": "a s per latest regulation of using 0 5 sulphur from 2020 what are the requirements for it he wanted to listen points like cleaning of bunker tank trying to consuming all bunker before taking new checking machinery compatibility with the oil etc", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "MARPOL Annex VI sulphur limits — the 2020 global cap", "cross_family": true }, { "answer_id": "BUNK-PLAN-004", "score": 0.5510953664779663, "sibling_score": 0.5510953664779663, "answer_score": null, "sibling_qid": "CHE-2024-06-0397-Q001", "sibling_text": "ce not there bunker barge arrived what you will do start with sopep scrubber plug quantity check bdn flash pont density sulphur content viscosity emergency signal grade of fuel", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Bunker plan: tank selection, quantity / overflow control, calculation and procedure", "cross_family": true } ] }, { "qid": "MUM-2026-07-3839-Q008", "text": "wear down of rudder carrier bearing ?", "family": "Steering Gear & Hydraulics", "subtopic": "Tiller / Rudder Stock", "tid": "MUM-2026-07-3839", "tray": "review", "candidates": [ { "answer_id": "PRE-TEN-001", "score": 0.7292060852050781, "sibling_score": 0.7292060852050781, "answer_score": null, "sibling_qid": "MUM-2026-06-3504-Q007", "sibling_text": "rudder carrier bearing removal procedure", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Pre-stressing and pre-tensioning in main-engine bolting", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.6894200444221497, "sibling_score": 0.6894200444221497, "answer_score": 0.5300162315368652, "sibling_qid": "MUM-2026-06-3610-Q003", "sibling_text": "removal of rudder bearing", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "TRS-002", "score": 0.667003870010376, "sibling_score": 0.667003870010376, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false } ] }, { "qid": "MUM-2026-07-3839-Q009", "text": "propeller edge break .. how to repair", "family": "Workshop & Welding", "subtopic": "Welding / Brazing / Soldering", "tid": "MUM-2026-07-3839", "tray": "review", "candidates": [ { "answer_id": "WBS-C-006", "score": 0.8106783032417297, "sibling_score": 0.8106783032417297, "answer_score": 0.567794919013977, "sibling_qid": "MUM-2026-05-3328-Q008", "sibling_text": "propeller edge break how to repair", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Propeller and rudder repair — grading the damage and the Class-approved route", "cross_family": false }, { "answer_id": "PROP-RP-004", "score": 0.6753643155097961, "sibling_score": 0.6753643155097961, "answer_score": 0.48528523445129396, "sibling_qid": "KOL-2018-05-1375-Q008", "sibling_text": "propeller blade damaged at tip how to repair", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Blade damage, repair zones, polishing and balancing", "cross_family": true }, { "answer_id": "SHAFT-CPP-007", "score": 0.6359710693359375, "sibling_score": 0.6359710693359375, "answer_score": 0.5178119957447052, "sibling_qid": "MUM-2023-09-2747-Q013", "sibling_text": "propellar damage fit new one steps", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "7. Propeller damage, replacement & new-propeller fitting", "cross_family": true } ] }, { "qid": "MUM-2026-07-3839-Q011", "text": "DD preparation ?", "family": "Electrical - Batteries & DC Systems", "subtopic": "Battery Testing / Load Test / SG", "tid": "MUM-2026-07-3839", "tray": "new", "candidates": [ { "answer_id": "DDHSC-004", "score": 0.5636992454528809, "sibling_score": 0.5636992454528809, "answer_score": null, "sibling_qid": "KOC-2025-12-1986-Q003", "sibling_text": "first checks after dd", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "What checks are carried out after docking, and what are the first checks once the ship is out of dock?", "cross_family": true }, { "answer_id": "dus-p6-01", "score": 0.5546542406082153, "sibling_score": 0.5546542406082153, "answer_score": null, "sibling_qid": "KOC-2024-12-1450-Q002", "sibling_text": "dd preparation with eto", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Drydock preparation with an ETO — the electrical-side workflow as 2E", "cross_family": true }, { "answer_id": "DUS-P1-02", "score": 0.5489226579666138, "sibling_score": 0.5489226579666138, "answer_score": 0.275226654112339, "sibling_qid": "KOL-2021-04-3399-Q003", "sibling_text": "special tools for dd to approch", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Plans, drawings and special tools kept ready for drydock — engine-department view", "cross_family": true } ] }, { "qid": "MUM-2026-07-3840-Q001", "text": "Type of ships and main engine ?", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "MUM-2026-07-3840", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P01-001", "score": 0.7922677397727966, "sibling_score": 0.7922677397727966, "answer_score": null, "sibling_qid": "MUM-2026-07-3668-Q004", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7722223401069641, "sibling_score": 0.7722223401069641, "answer_score": null, "sibling_qid": "MUM-2025-08-2357-Q001", "sibling_text": "type of ship type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "AC-VE-001", "score": 0.7078592777252197, "sibling_score": 0.7078592777252197, "answer_score": null, "sibling_qid": "MUM-2026-01-2904-Q001", "sibling_text": "what type of ship engine power and nomenclature", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Volumetric efficiency: define it, and if it drops how do you improve it (with bumping clearance)?", "cross_family": false } ] }, { "qid": "MUM-2026-07-3840-Q005", "text": "⁠Aspect Ratio ⁠? what two factors the alpha lubrication decides the injection quantity? And how it is sensing it?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Alpha Lubricator", "tid": "MUM-2026-07-3840", "tray": "review", "candidates": [ { "answer_id": "ALPHA-LUB-B-004", "score": 0.6889837384223938, "sibling_score": 0.6889837384223938, "answer_score": 0.41992185115814207, "sibling_qid": "KOL-2018-11-1430-Q002", "sibling_text": "alpha lubricator details some what all factors decides amount and frequency of injection", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Alpha lubricator — feed-rate, timing, quantity and SLOC/SCOC calculation", "cross_family": false }, { "answer_id": "ALPHA-LUB-B-001", "score": 0.6187530159950256, "sibling_score": 0.6187530159950256, "answer_score": 0.42540429830551146, "sibling_qid": "CHE-2025-08-0206-Q005", "sibling_text": "alpha lubrication explains how it determines the feed and controls asking it acts on by rpm or engine load", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Alpha lubricator — control, HMI, sensors, inputs/outputs and feedback", "cross_family": false }, { "answer_id": "ALPHA-LUB-B-003", "score": 0.605356752872467, "sibling_score": 0.605356752872467, "answer_score": 0.45938531756401063, "sibling_qid": "KOL-2017-11-1332-Q003", "sibling_text": "1 alpha lubricator from lo storage tank till injection how it reaches lubricator quantity time taken pressure", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Alpha lubricator — components, accumulator, solenoids and pressures", "cross_family": false } ] }, { "qid": "MUM-2026-07-3841-Q001", "text": "What is protocol for giving oral online exam define and explain 😂😂😂😂😂😂", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-07-3841", "tray": "new", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.44150876998901367, "sibling_score": 0.44150876998901367, "answer_score": null, "sibling_qid": "MUM-2026-01-1252-Q001", "sibling_text": "status of results oral written exam", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": true }, { "answer_id": "IMO-CODES-P02-001", "score": 0.4067850112915039, "sibling_score": 0.4067850112915039, "answer_score": null, "sibling_qid": "KOL-2024-11-0882-Q001", "sibling_text": "amendment and protocol told all the answer correctly but not accepting anything even explained with example not accepting it telling u r fail in this question", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "IMO instruments: convention, code, protocol, amendment, regulation, resolution and rule", "cross_family": true }, { "answer_id": "ISM-AUD-P02-002", "score": 0.3987814486026764, "sibling_score": 0.3987814486026764, "answer_score": null, "sibling_qid": "KOC-2024-05-2047-Q010", "sibling_text": "ism regulation 2 3 more no cross questions at all only he will reconfirm the answer", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM Code — what it is, purpose, objectives and structure", "cross_family": true } ] }, { "qid": "MUM-2026-07-3841-Q004", "text": "ESP for bulk and tankers ?", "family": "SOLAS - General (HOLD)", "subtopic": "Solas Chapter 12 - Bulk", "tid": "MUM-2026-07-3841", "tray": "review", "candidates": [ { "answer_id": "ESP-A-001", "score": 0.6878142356872559, "sibling_score": 0.6878142356872559, "answer_score": null, "sibling_qid": "MUM-2026-05-3148-Q001", "sibling_text": "what is esp in bulk carrier", "sibling_family": "SOLAS - General (HOLD)", "via": "sibling", "answer_title": "What is the Enhanced Survey Programme (ESP), and what is its purpose?", "cross_family": false }, { "answer_id": "BC-IMSBC-002", "score": 0.6751571893692017, "sibling_score": 0.6751571893692017, "answer_score": null, "sibling_qid": "MUM-2026-06-3384-Q002", "sibling_text": "offshore and bulk carrier", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "2. Bulk carrier construction and structural design", "cross_family": true }, { "answer_id": "SOLAS-XII-BC-002", "score": 0.6695560216903687, "sibling_score": 0.6695560216903687, "answer_score": null, "sibling_qid": "MUM-2026-08-3855-Q001", "sibling_text": "solas requirements for bulk carrier", "sibling_family": "SOLAS - General (HOLD)", "via": "sibling", "answer_title": "Explain SOLAS Chapter XII — the additional safety measures for bulk carriers", "cross_family": false } ] }, { "qid": "MUM-2026-07-3841-Q006", "text": "Rudder jumping clearance increase ...it's effect and how to reduce ?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "MUM-2026-07-3841", "tray": "review", "candidates": [ { "answer_id": "RVSG-213-005", "score": 0.7587975859642029, "sibling_score": 0.7587975859642029, "answer_score": 0.4786623418331146, "sibling_qid": "MUM-2026-05-3316-Q006", "sibling_text": "rudder jumping clearance increase it s effect and how to reduce", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Jumping clearance, thrust accommodation, stock connection & overhaul", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.6644315123558044, "sibling_score": 0.6644315123558044, "answer_score": null, "sibling_qid": "MUM-2026-05-3144-Q006", "sibling_text": "rudder jumping clearance", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "RUD-DROP-003", "score": 0.5796987414360046, "sibling_score": 0.5796987414360046, "answer_score": 0.3694150120019913, "sibling_qid": "CHE-2026-05-0531-Q003", "sibling_text": "rudder drop how to check if clearance more what will u do in sailing", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Rudder drop at the limit: the decision", "cross_family": false } ] }, { "qid": "MUM-2026-07-3842-Q001", "text": "Type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-07-3842", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8362272381782532, "sibling_score": 0.8362272381782532, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8015320301055908, "sibling_score": 0.8015320301055908, "answer_score": 0.5472018480300903, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8003027439117432, "sibling_score": 0.8003027439117432, "answer_score": 0.5214664876461029, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2026-07-3843-Q005", "text": "How to check holding down bolts tightness ?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Holding Down Bolts", "tid": "MUM-2026-07-3843", "tray": "review", "candidates": [ { "answer_id": "TBR-TT-P02-002", "score": 0.7883486151695251, "sibling_score": 0.7883486151695251, "answer_score": 0.49642876982688905, "sibling_qid": "MUM-2026-02-2549-Q006", "sibling_text": "holding down bolts tightness check", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Checking tie rod tightness / slackness — stopped and running", "cross_family": false }, { "answer_id": "TBR-TT-P02-001", "score": 0.7456188797950745, "sibling_score": 0.7456188797950745, "answer_score": null, "sibling_qid": "CHE-2026-05-0641-Q012", "sibling_text": "holding down bolts checks and tightening", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Tie rod tightening / hydraulic tensioning procedure", "cross_family": false }, { "answer_id": "PRE-TEN-004", "score": 0.6643061637878418, "sibling_score": 0.6643061637878418, "answer_score": null, "sibling_qid": "KOL-2026-04-3946-Q003", "sibling_text": "how you will check the hydraulic bolts and nut tightness", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Tightening cylinder-head hydraulic bolts or nuts without a torque wrench", "cross_family": false } ] }, { "qid": "MUM-2026-07-3844-Q004", "text": "bow thruster seal renewal procedure?", "family": "Auxiliary Equipment", "subtopic": "Bow Thruster", "tid": "MUM-2026-07-3844", "tray": "review", "candidates": [ { "answer_id": "STERN-P03-002", "score": 0.6859185695648193, "sibling_score": 0.6859185695648193, "answer_score": 0.5201692879199982, "sibling_qid": "MUM-2026-03-2663-Q002", "sibling_text": "stern tube seal renewal in place", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Stern-tube seals: arrangement, air/lip seals, renewal/replacement and the vulcanized split-seal fitting method", "cross_family": true }, { "answer_id": "WIND-WNCH-010", "score": 0.6553975939750671, "sibling_score": 0.6553975939750671, "answer_score": null, "sibling_qid": "MUM-2026-09-3904-Q006", "sibling_text": "winch hydraulic pump seal renewal procedure", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Survey prep, checks, routines and maintenance", "cross_family": false }, { "answer_id": "STERN-TUBE-P04-002", "score": 0.6204137802124023, "sibling_score": 0.6204137802124023, "answer_score": null, "sibling_qid": "KOC-2026-08-2163-Q014", "sibling_text": "in drydock you have replaced stern tube seals now do the stern tube integrity test", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Stern tube and seal integrity tests after survey and while underway", "cross_family": true } ] }, { "qid": "MUM-2026-07-3845-Q004", "text": "how atomisation done in burner ?", "family": "Boilers - Operations & Firing", "subtopic": "Burner / Firing / Soot Blow", "tid": "MUM-2026-07-3845", "tray": "review", "candidates": [ { "answer_id": "BFS-257-005", "score": 0.7490066885948181, "sibling_score": 0.7490066885948181, "answer_score": 0.5533367455005646, "sibling_qid": "MUM-2026-05-3267-Q010", "sibling_text": "how atomisation done in burner", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler burner atomisation and the fuel-line arrangement", "cross_family": false }, { "answer_id": "BLRBURN-004", "score": 0.6082242727279663, "sibling_score": 0.6082242727279663, "answer_score": null, "sibling_qid": "MUM-2026-03-1300-Q006", "sibling_text": "rotary cup and pressure jet burner", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Differentiate the pressure jet burner and the rotary cup burner — and which has the greater turndown ratio?", "cross_family": false }, { "answer_id": "BLRBURN-003", "score": 0.6082242727279663, "sibling_score": 0.6082242727279663, "answer_score": null, "sibling_qid": "MUM-2026-03-1306-Q006", "sibling_text": "rotary cup and pressure jet burner", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Draw and explain the rotary cup burner — its working and speed of rotation.", "cross_family": false } ] }, { "qid": "MUM-2026-07-3845-Q006", "text": "Air guard seal ?", "family": "Drydock & Underwater Surveys", "subtopic": "Stern Tube / Tail Shaft", "tid": "MUM-2026-07-3845", "tray": "review", "candidates": [ { "answer_id": "STERN-P03-002", "score": 0.7592939734458923, "sibling_score": 0.7592939734458923, "answer_score": 0.42463458627462386, "sibling_qid": "MUM-2026-05-3267-Q012", "sibling_text": "air guard seal", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Stern-tube seals: arrangement, air/lip seals, renewal/replacement and the vulcanized split-seal fitting method", "cross_family": false }, { "answer_id": "STT-BRG-003", "score": 0.5439082980155945, "sibling_score": 0.5439082980155945, "answer_score": 0.40572469830512997, "sibling_qid": "MUM-2022-08-1019-Q003", "sibling_text": "stern tube seal how protect", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "2. Stern tube seals — lip, radial-face and simplex arrangement (oil and air)", "cross_family": true }, { "answer_id": "STERN-TUBE-P04-001", "score": 0.5367022156715393, "sibling_score": 0.5367022156715393, "answer_score": null, "sibling_qid": "KOL-2026-03-3934-Q001", "sibling_text": "fwd seal leak action", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Stern tube or seal leakage at sea: diagnosis and 2/E actions", "cross_family": false } ] }, { "qid": "MUM-2026-07-3846-Q001", "text": "Rudder carrier bearing measurement?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "MUM-2026-07-3846", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.7202643156051636, "sibling_score": 0.7202643156051636, "answer_score": 0.5590008735656739, "sibling_qid": "KOL-2023-09-3636-Q007", "sibling_text": "rudder drop how to check where to place tramel gauge for measurement how to remove rudder carrier bearing srinivasan sir what type of engine and how to inspect bottom end bearing of connecting rod what all checks to do", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "PRE-TEN-001", "score": 0.7186638712882996, "sibling_score": 0.7186638712882996, "answer_score": null, "sibling_qid": "MUM-2026-06-3504-Q007", "sibling_text": "rudder carrier bearing removal procedure", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Pre-stressing and pre-tensioning in main-engine bolting", "cross_family": false }, { "answer_id": "TRS-002", "score": 0.7143188714981079, "sibling_score": 0.7143188714981079, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false } ] }, { "qid": "MUM-2026-07-3846-Q003", "text": "Umbrella ring ?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "", "tid": "MUM-2026-07-3846", "tray": "new", "candidates": [ { "answer_id": "FINJ-008", "score": 0.5637893080711365, "sibling_score": 0.5637893080711365, "answer_score": null, "sibling_qid": "KOL-2024-02-1943-Q002", "sibling_text": "umbrella seal function", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Umbrella seal and leak-off sealing arrangement", "cross_family": false }, { "answer_id": "SHRD-440-001", "score": 0.5341871380805969, "sibling_score": 0.5341871380805969, "answer_score": 0.31725090444087983, "sibling_qid": "MUM-2022-12-2158-Q003", "sibling_text": "shroud ring", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "What is the shroud ring, where is it fitted, and what does it do?", "cross_family": true }, { "answer_id": "PRING-B-004", "score": 0.5250817537307739, "sibling_score": 0.5250817537307739, "answer_score": null, "sibling_qid": "KOC-2025-08-1570-Q015", "sibling_text": "liner how many rings show me positions", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Function, sealing, position & arrangement", "cross_family": true } ] }, { "qid": "MUM-2026-07-3846-Q007", "text": "TEV , Is it preset from factor or can you make adjustment?", "family": "Refrigeration & AC", "subtopic": "TEV / TXV", "tid": "MUM-2026-07-3846", "tray": "new", "candidates": [ { "answer_id": "TEV-TXV-002", "score": 0.5215160846710205, "sibling_score": 0.5215160846710205, "answer_score": null, "sibling_qid": "CHE-2026-09-3916-Q004", "sibling_text": "tev function", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "TEV / TXV — purpose, construction, location and working", "cross_family": false }, { "answer_id": "TEV-TXV-005", "score": 0.5022035837173462, "sibling_score": 0.5022035837173462, "answer_score": null, "sibling_qid": "KOC-2024-04-0992-Q004", "sibling_text": "throttling of tev reef and ac difference", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Throttling process and superheat control across the TEV", "cross_family": false }, { "answer_id": "TEV-TXV-003", "score": 0.5007020831108093, "sibling_score": 0.5007020831108093, "answer_score": null, "sibling_qid": "MUM-2026-06-3376-Q010", "sibling_text": "external equalising in tev", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Equalizing line — internal vs external equalized TEV", "cross_family": false } ] }, { "qid": "MUM-2026-07-3847-Q001", "text": " Types of ship, engine", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "MUM-2026-07-3847", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8295289874076843, "sibling_score": 0.8295289874076843, "answer_score": null, "sibling_qid": "MUM-2026-06-3616-Q001", "sibling_text": "types of ship engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.7804980874061584, "sibling_score": 0.7804980874061584, "answer_score": null, "sibling_qid": "MUM-2026-07-3668-Q004", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "AC-VE-001", "score": 0.7711037397384644, "sibling_score": 0.7711037397384644, "answer_score": null, "sibling_qid": "MUM-2026-01-2904-Q001", "sibling_text": "what type of ship engine power and nomenclature", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Volumetric efficiency: define it, and if it drops how do you improve it (with bumping clearance)?", "cross_family": false } ] }, { "qid": "MUM-2026-07-3847-Q003", "text": "EICU function working ?", "family": "2-Stroke - ME-C / Electronic Engine", "subtopic": "", "tid": "MUM-2026-07-3847", "tray": "new", "candidates": [ { "answer_id": "EICU-MAN-P01-001", "score": 0.5677868127822876, "sibling_score": 0.5677868127822876, "answer_score": 0.3869583159685135, "sibling_qid": "KOC-2026-08-2158-Q013", "sibling_text": "function of eicu and ecu", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "EICU, ECU, CCU, ACU — the ME control units and what is controlled electronically", "cross_family": true }, { "answer_id": "MEB-MEC-P03-002", "score": 0.561983585357666, "sibling_score": 0.561983585357666, "answer_score": 0.2808990150690079, "sibling_qid": "KOL-2026-01-4081-Q002", "sibling_text": "ccu function eicu function", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "ME camless control architecture — ECS, CCU, EICU, MPC", "cross_family": true }, { "answer_id": "EICU-MAN-P01-004", "score": 0.5309035181999207, "sibling_score": 0.5309035181999207, "answer_score": 0.3410424917936325, "sibling_qid": "KOL-2025-07-1993-Q003", "sibling_text": "ecu and eicu", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Control-unit failure — CCU / ECU / EICU: can you still run the engine?", "cross_family": true } ] }, { "qid": "MUM-2026-07-3847-Q004", "text": "IN ME engine which component stop working everything stops ?What is the function of ECU what it does ? Function of CCU and FIVA ?", "family": "2-Stroke - ME-C / Electronic Engine", "subtopic": "", "tid": "MUM-2026-07-3847", "tray": "review", "candidates": [ { "answer_id": "EICU-MAN-P01-001", "score": 0.7799946069717407, "sibling_score": 0.7799946069717407, "answer_score": 0.5272617846727371, "sibling_qid": "KOL-2026-05-0051-Q002", "sibling_text": "in me engine which component stop working everything stops xxxx what is the function of ecu what it does functuon of ccu and fiva", "sibling_family": "", "via": "sibling", "answer_title": "EICU, ECU, CCU, ACU — the ME control units and what is controlled electronically", "cross_family": false }, { "answer_id": "FIVA-220-003", "score": 0.6978505849838257, "sibling_score": 0.6978505849838257, "answer_score": 0.4978221297264099, "sibling_qid": "KOL-2026-07-4261-Q002", "sibling_text": "ecu ccu fiva full working from where it takes input and how it operates what type of signal does ccu give to fiva for operation", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "FIVA control signal, controller type, voice-coil drive and fail-safe behaviour", "cross_family": true }, { "answer_id": "MEB-MEC-P03-004", "score": 0.6862130165100098, "sibling_score": 0.6862130165100098, "answer_score": null, "sibling_qid": "KOL-2025-06-3800-Q005", "sibling_text": "cooling pipe corroded on generator engine action repair internal difference between mc and me engines eicu ecu ccu fiva functions how fiva controls timing if eicu fails what will happen if ccu fails what will happen angle encoder details what happens if both angle encoder fails", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "ME failure modes & component replacement", "cross_family": true } ] }, { "qid": "MUM-2026-07-3847-Q005", "text": "Boiler combustion interlock . ", "family": "Boilers - Operations & Firing", "subtopic": "Automatic Combustion Control", "tid": "MUM-2026-07-3847", "tray": "review", "candidates": [ { "answer_id": "ACC-603-002", "score": 0.7859320044517517, "sibling_score": 0.7859320044517517, "answer_score": 0.6077393889427185, "sibling_qid": "KOL-2017-07-1304-Q003", "sibling_text": "boiler combustion auto system and safeties regarding combustion part", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Equipment, trips and safeties in the boiler combustion control system", "cross_family": false }, { "answer_id": "BFEYE-340-001", "score": 0.7850207686424255, "sibling_score": 0.7850207686424255, "answer_score": 0.5539074242115021, "sibling_qid": "KOL-2025-01-1967-Q003", "sibling_text": "different types of boiler interlock what is boiler interlock how flame failure works", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Flame failure: why it is a boiler safety, trip logic, alarm and testing", "cross_family": false }, { "answer_id": "ACC-603-001", "score": 0.7833983302116394, "sibling_score": 0.7833983302116394, "answer_score": null, "sibling_qid": "MUM-2026-07-3800-Q003", "sibling_text": "boiler combustion control", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "The automatic combustion control system — how it works, the start sequence, and the emergency arrangement", "cross_family": false } ] }, { "qid": "MUM-2026-07-3847-Q006", "text": "what is interlock What is the purpose of it. How it works.", "family": "Boilers - Operations & Firing", "subtopic": "Automatic Combustion Control", "tid": "MUM-2026-07-3847", "tray": "new", "candidates": [ { "answer_id": "MSB-ESB-C-001", "score": 0.4989925026893616, "sibling_score": 0.4989925026893616, "answer_score": null, "sibling_qid": "KOL-2019-07-2304-Q005", "sibling_text": "what is the function of interlock how does it perform it s duty", "sibling_family": "", "via": "sibling", "answer_title": "MSB-ESB interconnection, tie breaker/interlock and emergency supply transfer", "cross_family": false }, { "answer_id": "ILK-318-001", "score": 0.4945215582847595, "sibling_score": 0.4945215582847595, "answer_score": 0.36944690495729443, "sibling_qid": "KOC-2026-01-1091-Q008", "sibling_text": "me interlocks", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "1. What are the main engine interlocks?", "cross_family": true }, { "answer_id": "EICU-MAN-P02-004", "score": 0.493915855884552, "sibling_score": 0.493915855884552, "answer_score": 0.3650098830461502, "sibling_qid": "KOL-2026-01-2034-Q005", "sibling_text": "me interlocks", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Main-engine manoeuvring interlocks and the running-direction interlock", "cross_family": true } ] }, { "qid": "MUM-2026-07-3847-Q008", "text": "TC clearance (KLM) ?", "family": "Turbocharger", "subtopic": "", "tid": "MUM-2026-07-3847", "tray": "new", "candidates": [ { "answer_id": "TC-KLM-330-001", "score": 0.571607232093811, "sibling_score": 0.571607232093811, "answer_score": 0.27473645508289335, "sibling_qid": "MUM-2026-03-2638-Q005", "sibling_text": "clearances to be taken in tc", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "What are turbocharger K, L and M clearances, and how is each one derived?", "cross_family": false }, { "answer_id": "TC-CS-P01-006", "score": 0.47689956426620483, "sibling_score": 0.47689956426620483, "answer_score": 0.2495118126273155, "sibling_qid": "KOC-2024-01-1826-Q004", "sibling_text": "t c overhaul clearance", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "F·Turbocharger overhaul and clearances (ME and AE)", "cross_family": false }, { "answer_id": "TC-OVHL-002", "score": 0.4730159640312195, "sibling_score": 0.4730159640312195, "answer_score": null, "sibling_qid": "MUM-2025-08-2388-Q005", "sibling_text": "ae tc in place full overhaul with all clearances and values", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Auxiliary-engine turbocharger overhaul and checks", "cross_family": false } ] }, { "qid": "MUM-2026-07-3847-Q009", "text": "Tank cleaning procedure of your ship ? complete Where to pump out, how to pump out, what is the regulation to pump overboard. Procedure of striping. What type of tank can pumped out.", "family": "Cargo Ops - Tankers", "subtopic": "Tank Cleaning / TCM", "tid": "MUM-2026-07-3847", "tray": "review", "candidates": [ { "answer_id": "AII-DISCH-003", "score": 0.8362593650817871, "sibling_score": 0.8362593650817871, "answer_score": 0.6415795624256134, "sibling_qid": "MUM-2026-06-3616-Q011", "sibling_text": "where to pump out how to pump out what is the regulation to pump overboard procedure of striping", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Preparation and procedure before discharging residues, including when the pump will not take suction", "cross_family": false }, { "answer_id": "CPFE-583-012", "score": 0.8295934200286865, "sibling_score": 0.8295934200286865, "answer_score": null, "sibling_qid": "KOL-2026-05-0051-Q006", "sibling_text": "tank cleaning procedure of your ship xxx question risk assesment complete where to pump out how to pump out what is the regulation to pump overboard procedure of striping what type of tank can pumped out", "sibling_family": "", "via": "sibling", "answer_title": "Seal arrangement, cofferdam, and how leakage is detected", "cross_family": false }, { "answer_id": "TCM-374-006", "score": 0.7848565578460693, "sibling_score": 0.7848565578460693, "answer_score": 0.6269514113664627, "sibling_qid": "MUM-2026-06-3616-Q010", "sibling_text": "tank cleaning procedure of your ship", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Cargo stripping and tank residues (bellmouth and discharge limits)", "cross_family": false } ] }, { "qid": "MUM-2026-07-3847-Q011", "text": "Compressor terminal exchanged how to run compressor. we can run or not why not ?", "family": "Turbocharger", "subtopic": "TC Construction", "tid": "MUM-2026-07-3847", "tray": "new", "candidates": [ { "answer_id": "SUP-CHG-003", "score": 0.5892036557197571, "sibling_score": 0.5892036557197571, "answer_score": null, "sibling_qid": "MUM-2025-10-2461-Q005", "sibling_text": "why compressor not used in place of t c", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharging versus mechanical supercharging — why not an engine-driven compressor?", "cross_family": false }, { "answer_id": "CAP-CTRL-002", "score": 0.573879599571228, "sibling_score": 0.573879599571228, "answer_score": null, "sibling_qid": "KOL-2017-01-1267-Q002", "sibling_text": "refer compressor unloader working", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "CG-002 · How the cylinder-unloader mechanism works", "cross_family": true }, { "answer_id": "MAC-598-003", "score": 0.5618841648101807, "sibling_score": 0.5618841648101807, "answer_score": null, "sibling_qid": "MUM-2022-10-2713-Q006", "sibling_text": "compressor running continuously", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "The compressor is not filling the bottle, or is taking longer than usual, or running continuously on low amps — checks and actions as 2/E", "cross_family": true } ] }, { "qid": "MUM-2026-07-3848-Q003", "text": "What you inspection carried out in gear pump ?", "family": "Pumps - Centrifugal & PD", "subtopic": "Gear / Screw / Mono Pump", "tid": "MUM-2026-07-3848", "tray": "review", "candidates": [ { "answer_id": "PCD-P05-03", "score": 0.8013221621513367, "sibling_score": 0.8013221621513367, "answer_score": null, "sibling_qid": "MUM-2026-05-3238-Q011", "sibling_text": "what you inspection carried out in gear pump", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Gear pump — construction, working, backlash, tooth profile, safety valve, why not for sea water", "cross_family": false }, { "answer_id": "PCD-P02-06", "score": 0.6906766891479492, "sibling_score": 0.6906766891479492, "answer_score": null, "sibling_qid": "CHE-2026-05-0596-Q001", "sibling_text": "checks on centrifugal pump shaft type of wear or deformation and its exact location on the shaft", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Checking pump shaft trueness / bend and static-vs-dynamic balancing", "cross_family": false }, { "answer_id": "PCD-P03-01", "score": 0.6826651692390442, "sibling_score": 0.6826651692390442, "answer_score": null, "sibling_qid": "KOL-2022-03-3525-Q002", "sibling_text": "pump overhaul and checks stress raiser points in shaft", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Centrifugal pump overhaul — procedure, checks, clearances and survey evidence", "cross_family": false } ] }, { "qid": "MUM-2026-07-3848-Q004", "text": "What is back less clearance ?", "family": "2-Stroke - Components (Other)", "subtopic": "Running Clearances (Bumping/Jumping)", "tid": "MUM-2026-07-3848", "tray": "new", "candidates": [ { "answer_id": "PRING-CLR-A-002", "score": 0.5276315212249756, "sibling_score": 0.5276315212249756, "answer_score": null, "sibling_qid": "KOC-2023-10-1820-Q006", "sibling_text": "butt clearance", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston-ring clearances and calibration — butt, axial, radial, wear limits", "cross_family": false }, { "answer_id": "RUN-CLR-002", "score": 0.49984121322631836, "sibling_score": 0.49984121322631836, "answer_score": null, "sibling_qid": "MUM-2026-06-3470-Q004", "sibling_text": "bumping clearance", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Bumping clearance — what it is, why it matters, effects, and how it is adjusted", "cross_family": false }, { "answer_id": "BCL-592-005", "score": 0.4880598485469818, "sibling_score": 0.4880598485469818, "answer_score": null, "sibling_qid": "KOC-2022-07-0966-Q017", "sibling_text": "what provision given on bearing for less clearance overlayer", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What provision is made in the bearing itself to accommodate low clearance?", "cross_family": true } ] }, { "qid": "MUM-2026-07-3848-Q005", "text": "Electronic governor ? bias spring function ? Difference from UG and PG model of Woodward ?", "family": "Automation & Controls", "subtopic": "Governor (Mechanical / Electronic)", "tid": "MUM-2026-07-3848", "tray": "review", "candidates": [ { "answer_id": "GOV-P02-006", "score": 0.8295732140541077, "sibling_score": 0.8295732140541077, "answer_score": 0.4391355961561203, "sibling_qid": "MUM-2025-09-2841-Q001", "sibling_text": "electronic governor bias spring function difference from ug and pg model of woodward", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Electro-hydraulic (Woodward) governor working", "cross_family": false }, { "answer_id": "GOV-P02-005", "score": 0.5541154146194458, "sibling_score": 0.5541154146194458, "answer_score": null, "sibling_qid": "KOL-2025-08-2847-Q018", "sibling_text": "pid in electronic governor", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "PID control, loop stability & detuning", "cross_family": false }, { "answer_id": "GOV-P03-001", "score": 0.553104043006897, "sibling_score": 0.553104043006897, "answer_score": null, "sibling_qid": "KOL-2024-01-1940-Q003", "sibling_text": "3 difference between me governor and ae governor what is sensitivity of governor droop setting", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Dead band and sensitivity of a governor", "cross_family": false } ] }, { "qid": "MUM-2026-07-3848-Q006", "text": "ELIF and ELVA, FIVA servo oil", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "FIVA Valve", "tid": "MUM-2026-07-3848", "tray": "review", "candidates": [ { "answer_id": "FIVA-220-002", "score": 0.7929949760437012, "sibling_score": 0.7929949760437012, "answer_score": null, "sibling_qid": "MUM-2026-05-3238-Q014", "sibling_text": "elfi and elva fiva servo oil", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "FIVA control of fuel injection — timing, quantity and actuation", "cross_family": false }, { "answer_id": "VIT-MECH-D-001", "score": 0.49095940589904785, "sibling_score": 0.49095940589904785, "answer_score": null, "sibling_qid": "MUM-2025-10-1207-Q001", "sibling_text": "vit and super vit explain in detail 2 capacity control how it works explained everything about electronic control but he wanted to listen oil control valve", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Super-VIT — construction and working (double-thread / upper-lower thread)", "cross_family": false }, { "answer_id": "ANG-ENC-006", "score": 0.48058396577835083, "sibling_score": 0.48058396577835083, "answer_score": null, "sibling_qid": "KOC-2022-02-0957-Q002", "sibling_text": "angle enocorder hydraulic pump pressure alfa lubrication in me engine", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Using the signal: ME/ME-C timing, manoeuvring, injection and exhaust valve", "cross_family": false } ] }, { "qid": "MUM-2026-07-3856-Q001", "text": "Structural members of deck on chemical tankers?", "family": "Cargo Ops - Tankers", "subtopic": "Chemical Tanker Code (BCH/IBC)", "tid": "MUM-2026-07-3856", "tray": "review", "candidates": [ { "answer_id": "COT-04", "score": 0.6893613934516907, "sibling_score": 0.6893613934516907, "answer_score": 0.5350921511650085, "sibling_qid": "MUM-2026-09-3974-Q003", "sibling_text": "strengthening members of a chemical tanker", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Chemical-tanker midship section and cargo-tank construction", "cross_family": false }, { "answer_id": "COT-02", "score": 0.6886147856712341, "sibling_score": 0.6886147856712341, "answer_score": null, "sibling_qid": "KOC-2025-06-0605-Q003", "sibling_text": "draw chemical tanker cross section constructional difference b w chemical and conventional tanker why crude oil tanker deck stiffeners are placed inside how arrangements for ballast pipelines are given and many x", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Oil tanker versus chemical tanker construction", "cross_family": false }, { "answer_id": "BCH-IBC-A-001", "score": 0.6730817556381226, "sibling_score": 0.6730817556381226, "answer_score": null, "sibling_qid": "MUM-2022-11-0069-Q002", "sibling_text": "construction of tanker internal strengthening member external stenghtning member difference of type 1 2 3 chemical tanker", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Type 1, Type 2 and Type 3 chemical tankers — the ship-type classification", "cross_family": false } ] }, { "qid": "MUM-2026-07-3856-Q004", "text": "Fire fighting system on ship? Calculation?", "family": "SOLAS - Fire Safety", "subtopic": "Fixed Firefighting", "tid": "MUM-2026-07-3856", "tray": "review", "candidates": [ { "answer_id": "FOAM-P01-005", "score": 0.7522185444831848, "sibling_score": 0.7522185444831848, "answer_score": null, "sibling_qid": "KOL-2018-03-3962-Q006", "sibling_text": "fire fighting system used on tanker deck all regulations and calculation", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Calculating foam quantity/capacity for a fixed deck foam system", "cross_family": false }, { "answer_id": "FOAM-P02-001", "score": 0.7490409016609192, "sibling_score": 0.7490409016609192, "answer_score": null, "sibling_qid": "MUM-2025-11-0556-Q009", "sibling_text": "fixed fire fighting system on deck of ur ship", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Draw and explain the fixed deck foam firefighting system used on a tanker.", "cross_family": false }, { "answer_id": "FFF-A-001", "score": 0.7465774416923523, "sibling_score": 0.7465774416923523, "answer_score": 0.5327492475509643, "sibling_qid": "MUM-2024-12-2781-Q007", "sibling_text": "fixed fire fighting system for your ship on deck why not dcp or co2", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fixed firefighting on deck and in the cargo area — tankers, chemical and gas carriers", "cross_family": false } ] }, { "qid": "MUM-2026-07-3857-Q002", "text": "What to check in dynamic test", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Lifeboat Static / Dynamic Test", "tid": "MUM-2026-07-3857", "tray": "review", "candidates": [ { "answer_id": "LB-SDT-A-001", "score": 0.712517261505127, "sibling_score": 0.712517261505127, "answer_score": null, "sibling_qid": "KOC-2022-11-0111-Q004", "sibling_text": "static and dynamic test xplain how to do and what checks", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat static and dynamic test — purpose and procedure", "cross_family": false }, { "answer_id": "LBT-TEST-B-005", "score": 0.6541650891304016, "sibling_score": 0.6541650891304016, "answer_score": 0.39667459726333615, "sibling_qid": "MUM-2025-08-0430-Q001", "sibling_text": "life boat testing dynamic test and static test what to check in dynamic test", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Checks after the dynamic/overload load test", "cross_family": false }, { "answer_id": "LBT-TEST-B-001", "score": 0.5736352801322937, "sibling_score": 0.5736352801322937, "answer_score": null, "sibling_qid": "KOC-2026-05-2131-Q006", "sibling_text": "tests in lifeboat davits explain dynamic test how much is the proof load how it is loaded", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat/davit load-test proof loads and test conditions", "cross_family": false } ] }, { "qid": "MUM-2026-07-3858-Q003", "text": "How to improve propeller efficiency ?", "family": "Shafting, Propeller & Rudder", "subtopic": "", "tid": "MUM-2026-07-3858", "tray": "review", "candidates": [ { "answer_id": "SPR-STERN-001", "score": 0.7935588955879211, "sibling_score": 0.7935588955879211, "answer_score": 0.5454415798187255, "sibling_qid": "MUM-2026-06-3573-Q004", "sibling_text": "propeller efficiency how to increase", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Propeller design factors, efficiency, handedness & material", "cross_family": false }, { "answer_id": "RES-PROP-P03-002", "score": 0.74351966381073, "sibling_score": 0.74351966381073, "answer_score": 0.5032092273235321, "sibling_qid": "KOL-2025-03-1968-Q005", "sibling_text": "propeller efficiency how to increase", "sibling_family": "", "via": "sibling", "answer_title": "2. Propulsive coefficients: QPC, hull/propeller/relative-rotative efficiency, wake, slip and propeller curves", "cross_family": false }, { "answer_id": "SPR-STERN-006", "score": 0.6764822006225586, "sibling_score": 0.6764822006225586, "answer_score": null, "sibling_qid": "MUM-2026-09-3935-Q005", "sibling_text": "propeller advancement", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Propeller types & special propulsors", "cross_family": false } ] }, { "qid": "MUM-2026-07-3858-Q007", "text": "IAPP", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "IAPP", "tid": "MUM-2026-07-3858", "tray": "review", "candidates": [ { "answer_id": "AVICERT-001", "score": 0.8149617314338684, "sibling_score": 0.8149617314338684, "answer_score": null, "sibling_qid": "MUM-2026-05-3234-Q007", "sibling_text": "iapp", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What certificates and documents are required to be carried on board under MARPOL Annex VI?", "cross_family": false }, { "answer_id": "AVICERT-004", "score": 0.7542881369590759, "sibling_score": 0.7542881369590759, "answer_score": null, "sibling_qid": "KOL-2026-01-1157-Q003", "sibling_text": "iapp eiapp", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Differentiate between the IAPP and EIAPP certificates: purpose, who issues each, and validity.", "cross_family": false }, { "answer_id": "EIAPP-600-006", "score": 0.7542880177497864, "sibling_score": 0.7542880177497864, "answer_score": 0.3227063983678818, "sibling_qid": "KOL-2025-09-1060-Q006", "sibling_text": "iapp eiapp", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is the difference between IAPP and EIAPP?", "cross_family": false } ] }, { "qid": "MUM-2026-08-3827-Q003", "text": "⁠how longitudinal wash bulkhead reduce FSE ?", "family": "SOLAS - Fire Safety", "subtopic": "A-60 / B-Class", "tid": "MUM-2026-08-3827", "tray": "review", "candidates": [ { "answer_id": "FSE-P02-002", "score": 0.6992810368537903, "sibling_score": 0.6992810368537903, "answer_score": 0.45756030082702637, "sibling_qid": "MUM-2025-09-0478-Q003", "sibling_text": "how longitudinal wash bulkhead reduce fse", "sibling_family": "", "via": "sibling", "answer_title": "Constructional arrangements in tanks and tankers that reduce FSE", "cross_family": false }, { "answer_id": "BHD-TYP-C-004", "score": 0.5108477473258972, "sibling_score": 0.5108477473258972, "answer_score": 0.39231270998716355, "sibling_qid": "KOC-2025-12-0741-Q004", "sibling_text": "what is wash bulkhead in transverse direction", "sibling_family": "", "via": "sibling", "answer_title": "Wash (swash) bulkhead — purpose and how it works", "cross_family": false }, { "answer_id": "FSE-P03-003", "score": 0.509731113910675, "sibling_score": 0.509731113910675, "answer_score": null, "sibling_qid": "KOL-2019-02-0262-Q001", "sibling_text": "fse how to reduce it perforated bulkhead formula for calculation performance diameter", "sibling_family": "", "via": "sibling", "answer_title": "3. Formula, factors and calculation", "cross_family": false } ] }, { "qid": "MUM-2026-08-3828-Q010", "text": "How to check weight of co2 bottle?", "family": "SOLAS - Fire Safety", "subtopic": "CO2 System", "tid": "MUM-2026-08-3828", "tray": "review", "candidates": [ { "answer_id": "CO2-SYS-002", "score": 0.8313444256782532, "sibling_score": 0.8313444256782532, "answer_score": null, "sibling_qid": "MUM-2025-09-0459-Q008", "sibling_text": "how to check weight of co2 bottle", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 maintenance, inspection, testing and survey routines", "cross_family": false }, { "answer_id": "CO2-CALC-P01-002", "score": 0.7629020810127258, "sibling_score": 0.7629020810127258, "answer_score": null, "sibling_qid": "CHE-2026-08-3891-Q005", "sibling_text": "co2 bottles weight checking interval", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "How is the required CO2 quantity and number of bottles calculated for an engine-room total-flooding system?", "cross_family": false }, { "answer_id": "CO2-CALC-P02-002", "score": 0.7603392004966736, "sibling_score": 0.7603392004966736, "answer_score": 0.5457844227552414, "sibling_qid": "CHE-2026-05-0554-Q009", "sibling_text": "po ques co2 bottle weighing methods", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Checking CO2 cylinder contents and level, and action on a leaking or low cylinder", "cross_family": false } ] }, { "qid": "MUM-2026-08-3830-Q001", "text": "Function appearing for ?", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-08-3830", "tray": "new", "candidates": [ { "answer_id": "IMO-CODES-P03-002", "score": 0.5477039217948914, "sibling_score": 0.5477039217948914, "answer_score": null, "sibling_qid": "MUM-2026-03-0815-Q003", "sibling_text": "which function", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": true }, { "answer_id": "CHK-RM-001", "score": 0.5081137418746948, "sibling_score": 0.5081137418746948, "answer_score": null, "sibling_qid": "KOL-2025-05-3783-Q007", "sibling_text": "function of chock", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What are chocks? Function, types, where fitted and how placed — which have the biggest area, and how does the bedplate connect to the hull?", "cross_family": true }, { "answer_id": "CHK-330-001", "score": 0.5077989101409912, "sibling_score": 0.5077989101409912, "answer_score": null, "sibling_qid": "KOC-2022-05-1785-Q007", "sibling_text": "function of chock", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What is the purpose and function of main engine chocks?", "cross_family": true } ] }, { "qid": "MUM-2026-08-3831-Q002", "text": "MAGNITUDE OF BUOYANT FORCE ?", "family": "SOLAS", "subtopic": "Reserve Buoyancy", "tid": "MUM-2026-08-3831", "tray": "review", "candidates": [ { "answer_id": "RES-BUOY-002", "score": 0.8301499485969543, "sibling_score": 0.8301499485969543, "answer_score": 0.48976742327213285, "sibling_qid": "MUM-2025-09-0447-Q002", "sibling_text": "magnitude of buoyant force", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Why a ship floats — buoyancy principles", "cross_family": false }, { "answer_id": "FORMCO-313-001", "score": 0.6794223189353943, "sibling_score": 0.6794223189353943, "answer_score": 0.528858357667923, "sibling_qid": "KOL-2020-11-0435-Q004", "sibling_text": "coefficient of buoyancy", "sibling_family": "", "via": "sibling", "answer_title": "Block coefficient (Cb) / coefficient of buoyancy", "cross_family": false }, { "answer_id": "RES-BUOY-004", "score": 0.6550050973892212, "sibling_score": 0.6550050973892212, "answer_score": 0.5105131953954697, "sibling_qid": "KOL-2026-01-1158-Q002", "sibling_text": "reserve buoyancy bouyancy coefficient", "sibling_family": "", "via": "sibling", "answer_title": "‘Coefficient of buoyancy’ and the factors that govern reserve buoyancy", "cross_family": false } ] }, { "qid": "MUM-2026-08-3832-Q009", "text": "Global warming potential ?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "GHG / Greenhouse", "tid": "MUM-2026-08-3832", "tray": "review", "candidates": [ { "answer_id": "AV6-P04-01", "score": 0.8174363970756531, "sibling_score": 0.8174363970756531, "answer_score": 0.5487898081541062, "sibling_qid": "MUM-2026-06-3582-Q009", "sibling_text": "gwp global warming potential", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Define Global Warming Potential and Ozone Depletion Potential; give the reference bases, meaning of a stated value, and the time-horizon and equal-mass points examiners drill.", "cross_family": false }, { "answer_id": "GFI-572-001", "score": 0.7401455044746399, "sibling_score": 0.7401455044746399, "answer_score": 0.49246122539043424, "sibling_qid": "MUM-2026-05-3263-Q005", "sibling_text": "greenhouse gas intensity calculations", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is GFI (Greenhouse Gas Fuel Intensity) under MARPOL Annex VI?", "cross_family": false }, { "answer_id": "AIRP-188-001", "score": 0.7281691431999207, "sibling_score": 0.7281691431999207, "answer_score": null, "sibling_qid": "CHE-2026-09-3905-Q003", "sibling_text": "ozone depletion potential and global warming potential", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is an ozone-depleting substance, and what is ODP?", "cross_family": false } ] }, { "qid": "MUM-2026-08-3833-Q003", "text": "MLC 2006 ?", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2026-08-3833", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-007", "score": 0.576312243938446, "sibling_score": 0.576312243938446, "answer_score": null, "sibling_qid": "MUM-2026-02-0734-Q007", "sibling_text": "mlc 2006 detainable deficiency", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false }, { "answer_id": "MLC-WRH-B-002", "score": 0.47856763005256653, "sibling_score": 0.47856763005256653, "answer_score": null, "sibling_qid": "MUM-2022-07-0027-Q005", "sibling_text": "mlc 2006 wages rest hours", "sibling_family": "MLC", "via": "sibling", "answer_title": "Work and rest hours under MLC — the criteria, the weekly limit, the intervals", "cross_family": false }, { "answer_id": "DUS-P1-03", "score": 0.4657885730266571, "sibling_score": 0.4657885730266571, "answer_score": null, "sibling_qid": "KOL-2023-04-0735-Q004", "sibling_text": "docking plan 5 mlc 2006", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Docking plan — content, purpose and how the 2E uses it", "cross_family": true } ] }, { "qid": "MUM-2026-08-3833-Q004", "text": " what is title no 5 ? Which is most important as a seafarer ? INTERNAL QUES", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2026-08-3833", "tray": "new", "candidates": [ { "answer_id": "STCW-MAN-008", "score": 0.5590153932571411, "sibling_score": 0.5590153932571411, "answer_score": null, "sibling_qid": "KOC-2023-12-0264-Q004", "sibling_text": "stcw chapter 5 explain", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Explain STCW Chapter V and its special training requirements — including which chapter applies to a gas tanker, and what is required other than for tankers and passenger ships.", "cross_family": true }, { "answer_id": "VOC-MGT-003", "score": 0.5411216616630554, "sibling_score": 0.5411216616630554, "answer_score": null, "sibling_qid": "KOL-2022-07-0661-Q005", "sibling_text": "5 what is voc how to manage on ship", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Managing and controlling VOC - VECS and onboard measures", "cross_family": true }, { "answer_id": "MLC-WRH-B-011", "score": 0.5285295248031616, "sibling_score": 0.5285295248031616, "answer_score": 0.3985510885715485, "sibling_qid": "MUM-2026-04-0914-Q007", "sibling_text": "what is the complaint procedure onboard for seafarer", "sibling_family": "MLC", "via": "sibling", "answer_title": "The on-board complaint and grievance procedure", "cross_family": false } ] }, { "qid": "MUM-2026-08-3833-Q006", "text": "Hyper mist, if ums all water gets drained and no water what alternate option ?", "family": "SOLAS - Fire Safety", "subtopic": "Sprinkler / Water Mist / Hi-Fog", "tid": "MUM-2026-08-3833", "tray": "review", "candidates": [ { "answer_id": "FIRE-P02-03", "score": 0.8849242329597473, "sibling_score": 0.8849242329597473, "answer_score": 0.4770831972360611, "sibling_qid": "MUM-2025-07-0345-Q007", "sibling_text": "hyper mist if ums all water gets drained and no water what alternate option", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist — low water level or empty FW tank contingency", "cross_family": false }, { "answer_id": "FIRE-P01-01", "score": 0.6063140630722046, "sibling_score": 0.6063140630722046, "answer_score": null, "sibling_qid": "MUM-2026-06-3586-Q002", "sibling_text": "hyper mist working", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist / water-mist system — draw and explain the machinery-space arrangement and normal working", "cross_family": false }, { "answer_id": "FIRE-P02-04", "score": 0.41124861389398576, "sibling_score": null, "answer_score": 0.41124861389398576, "sibling_qid": "", "sibling_text": "hypermist vs sprinkler and co comparison and coexistence sprinkler fss ch 8 accommodation service spaces and control stations low pressure large droplets wet and cool single head activation on heat water mist fss ch 7 msc 1 circ 1387 for local application machinery space local application high pressure fine droplets evaporative cooling and steam envelope oxygen displacement", "sibling_family": "", "via": "answer_title", "answer_title": "Hypermist vs sprinkler and CO₂ — comparison and coexistence", "cross_family": false } ] }, { "qid": "MUM-2026-08-3834-Q001", "text": "SMS manual contents ?", "family": "ISM Code", "subtopic": "SMS / Functional Requirements", "tid": "MUM-2026-08-3834", "tray": "review", "candidates": [ { "answer_id": "SMSFR-002", "score": 0.8019948601722717, "sibling_score": 0.8019948601722717, "answer_score": 0.41028658151626585, "sibling_qid": "KOC-2026-05-0036-Q008", "sibling_text": "sms manuals internal", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the Safety Management System — the SMS manual, its contents, objectives, why it is needed onboard, and the company SMS policy?", "cross_family": false }, { "answer_id": "ISM-AUD-P02-004", "score": 0.7192649245262146, "sibling_score": 0.7192649245262146, "answer_score": 0.4273414850234985, "sibling_qid": "MUM-2022-08-0033-Q001", "sibling_text": "contents of sms", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "SMS contents, manuals, documents and drill records onboard", "cross_family": false }, { "answer_id": "ISM-AUDIT-P01-002", "score": 0.6705185770988464, "sibling_score": 0.6705185770988464, "answer_score": null, "sibling_qid": "KOC-2026-05-0049-Q005", "sibling_text": "ism survey only documentation contents of sms", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM/SMS audits and verifications — types, who conducts them, intervals and validity", "cross_family": false } ] }, { "qid": "MUM-2026-08-3834-Q002", "text": "Risk assessment ?", "family": "ISM Code", "subtopic": "Risk Assessment", "tid": "MUM-2026-08-3834", "tray": "review", "candidates": [ { "answer_id": "ISM-AUD-P02-005", "score": 0.7899126410484314, "sibling_score": 0.7899126410484314, "answer_score": null, "sibling_qid": "MUM-2026-09-3885-Q011", "sibling_text": "risk assessment explain", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM and maintenance: PMS, risk assessment and critical spares", "cross_family": false }, { "answer_id": "RA-MGMT-B-001", "score": 0.7894574999809265, "sibling_score": 0.7894574999809265, "answer_score": null, "sibling_qid": "MUM-2026-08-3828-Q001", "sibling_text": "risk assessment", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "How is a shipboard risk assessment prepared and carried out?", "cross_family": false }, { "answer_id": "RA-MGMT-A-001", "score": 0.74468594789505, "sibling_score": 0.74468594789505, "answer_score": 0.5666805148124695, "sibling_qid": "NOI-2026-09-0023-Q005", "sibling_text": "risk and risk assessment", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is risk, what is hazard, and what is risk assessment?", "cross_family": false } ] }, { "qid": "MUM-2026-08-3834-Q004", "text": "Water ballast Db tank construction ?", "family": "Cargo Ops - Tankers", "subtopic": "Cargo Tank Construction", "tid": "MUM-2026-08-3834", "tray": "review", "candidates": [ { "answer_id": "DBTB-A-002", "score": 0.7254186272621155, "sibling_score": 0.7254186272621155, "answer_score": 0.4698633313179016, "sibling_qid": "KOL-2025-11-1118-Q006", "sibling_text": "construction of your db ballast tanks", "sibling_family": "", "via": "sibling", "answer_title": "Double-bottom tanks: purpose, advantages, disadvantages and stability effect", "cross_family": false }, { "answer_id": "COT-09", "score": 0.7241153120994568, "sibling_score": 0.7241153120994568, "answer_score": 0.5550906300544739, "sibling_qid": "MUM-2026-08-3830-Q009", "sibling_text": "construction of double bottom ballast tank", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Ballast-tank construction", "cross_family": false }, { "answer_id": "COT-13", "score": 0.6234411597251892, "sibling_score": 0.6234411597251892, "answer_score": null, "sibling_qid": "CHE-2026-03-0120-Q001", "sibling_text": "segregated ballast tank", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Segregated, clean, dedicated and open ballast", "cross_family": false } ] }, { "qid": "MUM-2026-08-3834-Q006", "text": "how Longitudinal division of tank help free surface effect ?", "family": "Ship Construction & Stability", "subtopic": "Free Surface Effect", "tid": "MUM-2026-08-3834", "tray": "review", "candidates": [ { "answer_id": "FSE-P03-003", "score": 0.6573092937469482, "sibling_score": 0.6573092937469482, "answer_score": null, "sibling_qid": "KOL-2017-03-0066-Q004", "sibling_text": "free surface effect how to reduce i use formula and said longitudinal division reduce only not a transverse division", "sibling_family": "", "via": "sibling", "answer_title": "3. Formula, factors and calculation", "cross_family": false }, { "answer_id": "FSE-P02-002", "score": 0.608792781829834, "sibling_score": 0.608792781829834, "answer_score": 0.49208058714866637, "sibling_qid": "MUM-2022-10-2710-Q004", "sibling_text": "free surface effect and methods to reduce it in cargo tanks longitudinal subdivision of tank", "sibling_family": "", "via": "sibling", "answer_title": "Constructional arrangements in tanks and tankers that reduce FSE", "cross_family": false }, { "answer_id": "FSE-P02-001", "score": 0.5494305491447449, "sibling_score": 0.5494305491447449, "answer_score": 0.4428465783596039, "sibling_qid": "CHE-2026-05-0635-Q002", "sibling_text": "explain free surface effect measures to avoid", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Reducing and correcting free surface effect in practice", "cross_family": false } ] }, { "qid": "MUM-2026-08-3834-Q007", "text": "MLC 2006 ?", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2026-08-3834", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-007", "score": 0.576312243938446, "sibling_score": 0.576312243938446, "answer_score": null, "sibling_qid": "MUM-2026-02-0734-Q007", "sibling_text": "mlc 2006 detainable deficiency", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false }, { "answer_id": "MLC-WRH-B-002", "score": 0.47856760025024414, "sibling_score": 0.47856760025024414, "answer_score": null, "sibling_qid": "MUM-2022-07-0027-Q005", "sibling_text": "mlc 2006 wages rest hours", "sibling_family": "MLC", "via": "sibling", "answer_title": "Work and rest hours under MLC — the criteria, the weekly limit, the intervals", "cross_family": false }, { "answer_id": "DUS-P1-03", "score": 0.4657886028289795, "sibling_score": 0.4657886028289795, "answer_score": null, "sibling_qid": "KOL-2023-04-0735-Q004", "sibling_text": "docking plan 5 mlc 2006", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Docking plan — content, purpose and how the 2E uses it", "cross_family": true } ] }, { "qid": "MUM-2026-08-3835-Q004", "text": "And how ballast water DB tanks are constructed ?", "family": "Other Conventions", "subtopic": "Ballast Water Convention / BWM / BWMS", "tid": "MUM-2026-08-3835", "tray": "review", "candidates": [ { "answer_id": "DBTB-A-002", "score": 0.6932134628295898, "sibling_score": 0.6932134628295898, "answer_score": 0.4787302315235138, "sibling_qid": "KOL-2025-11-1118-Q006", "sibling_text": "construction of your db ballast tanks", "sibling_family": "", "via": "sibling", "answer_title": "Double-bottom tanks: purpose, advantages, disadvantages and stability effect", "cross_family": false }, { "answer_id": "COT-09", "score": 0.6536918878555298, "sibling_score": 0.6536918878555298, "answer_score": 0.5577011406421661, "sibling_qid": "MUM-2026-08-3830-Q009", "sibling_text": "construction of double bottom ballast tank", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Ballast-tank construction", "cross_family": true }, { "answer_id": "FLR-WFB-P01-001", "score": 0.5679655075073242, "sibling_score": 0.5679655075073242, "answer_score": null, "sibling_qid": "KOL-2025-03-0920-Q003", "sibling_text": "db tank construction what is floor", "sibling_family": "", "via": "sibling", "answer_title": "Floors — what they are, the types, and where they are fitted", "cross_family": false } ] }, { "qid": "MUM-2026-08-3836-Q001", "text": "Subdivision index and it applicability ?", "family": "Ship Construction & Stability", "subtopic": "Margin Line / Subdivision", "tid": "MUM-2026-08-3836", "tray": "new", "candidates": [ { "answer_id": "DS-P04-002", "score": 0.6401136517524719, "sibling_score": 0.6401136517524719, "answer_score": null, "sibling_qid": "CHE-2026-05-0580-Q002", "sibling_text": "significance of subdivisions", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Flooding, subdivision, margin line, downflooding and survivability", "cross_family": false }, { "answer_id": "FLP-142-P02-005", "score": 0.6238336563110352, "sibling_score": 0.6238336563110352, "answer_score": 0.35924569368362425, "sibling_qid": "MUM-2026-09-3878-Q003", "sibling_text": "factor of subdivision", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Factor of subdivision — how it is fixed (length and criterion numeral)", "cross_family": false }, { "answer_id": "FLP-142-P02-004", "score": 0.6107504963874817, "sibling_score": 0.6107504963874817, "answer_score": 0.40861474722623825, "sibling_qid": "MUM-2026-08-3836-Q002", "sibling_text": "what is subdivision", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Factor of subdivision — what it is", "cross_family": false } ] }, { "qid": "MUM-2026-08-3836-Q003", "text": "Types of foam extinguisher ?", "family": "SOLAS - Fire Safety", "subtopic": "Foam System / Monitor", "tid": "MUM-2026-08-3836", "tray": "review", "candidates": [ { "answer_id": "FOAM-SYS-P04-003", "score": 0.7951784729957581, "sibling_score": 0.7951784729957581, "answer_score": null, "sibling_qid": "KOL-2023-07-0757-Q004", "sibling_text": "foam type extinguishing working", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "2. How mechanical foam is produced", "cross_family": false }, { "answer_id": "FEXT-583-001", "score": 0.7909954190254211, "sibling_score": 0.7909954190254211, "answer_score": 0.5405029088258743, "sibling_qid": "KOL-2026-07-4150-Q005", "sibling_text": "type of foam fire extinguisher", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Types of portable fire extinguishers carried on board, their capacities and their advantages", "cross_family": false }, { "answer_id": "FOAM-SYS-P04-001", "score": 0.7722952365875244, "sibling_score": 0.7722952365875244, "answer_score": null, "sibling_qid": "KOL-2025-07-0981-Q004", "sibling_text": "foam extinguishers what is foam ratio of high low medium expansion foam", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "4. Expansion ratios — low, medium, high", "cross_family": false } ] }, { "qid": "MUM-2026-08-3836-Q004", "text": "Explain both mechanical and chemical ?", "family": "SOLAS - Fire Safety", "subtopic": "DCP / Dry Powder", "tid": "MUM-2026-08-3836", "tray": "new", "candidates": [ { "answer_id": "DCP-PPC-001", "score": 0.5260844230651855, "sibling_score": 0.5260844230651855, "answer_score": null, "sibling_qid": "KOC-2025-07-0633-Q045", "sibling_text": "chemical", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "C1 — Composition, Chemical Names & Anti-caking Agents", "cross_family": false }, { "answer_id": "FOAM-SYS-P05-003", "score": 0.49819692969322205, "sibling_score": 0.49819692969322205, "answer_score": 0.38726959526538846, "sibling_qid": "CHE-2026-08-3868-Q003", "sibling_text": "mechanical and chemical foam difference", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "3. Mechanical foam vs chemical foam — difference and constituents", "cross_family": false }, { "answer_id": "CYL-LUB-A-004", "score": 0.4570063650608063, "sibling_score": 0.4570063650608063, "answer_score": null, "sibling_qid": "KOL-2021-02-3378-Q007", "sibling_text": "changed and mechanism", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Types of cylinder lubrication system", "cross_family": true } ] }, { "qid": "MUM-2026-08-3849-Q003", "text": "EUMRV ?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "MRV / DCS", "tid": "MUM-2026-08-3849", "tray": "review", "candidates": [ { "answer_id": "MRV-DCS-001", "score": 0.7825501561164856, "sibling_score": 0.7825501561164856, "answer_score": 0.28826403319835664, "sibling_qid": "KOL-2025-09-1053-Q003", "sibling_text": "eumrv", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is the difference between EU MRV and IMO DCS?", "cross_family": false }, { "answer_id": "EEDI-C-002", "score": 0.28177185356616974, "sibling_score": null, "answer_score": 0.28177185356616974, "sibling_qid": "", "sibling_text": "eedi versus eeoi what is the difference", "sibling_family": "", "via": "answer_title", "answer_title": "EEDI versus EEOI — what is the difference?", "cross_family": false }, { "answer_id": "EEDI-C-003", "score": 0.2758950382471084, "sibling_score": null, "answer_score": 0.2758950382471084, "sibling_qid": "", "sibling_text": "how eedi sits against eexi cii and seemp", "sibling_family": "", "via": "answer_title", "answer_title": "How EEDI sits against EEXI, CII and SEEMP", "cross_family": false } ] }, { "qid": "MUM-2026-08-3849-Q004", "text": "IMODCS ?", "family": "IMO Structure & Conventions", "subtopic": "IMO Conventions Overview", "tid": "MUM-2026-08-3849", "tray": "new", "candidates": [ { "answer_id": "IMODCS-001", "score": 0.5892354846000671, "sibling_score": 0.5892354846000671, "answer_score": null, "sibling_qid": "MUM-2026-09-3964-Q006", "sibling_text": "imo dcs", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is the IMO DCS? What data is collected, over what period, and what are the “gradings”?", "cross_family": true }, { "answer_id": "MRV-DCS-001", "score": 0.4918476343154907, "sibling_score": 0.4918476343154907, "answer_score": null, "sibling_qid": "MUM-2023-03-0094-Q002", "sibling_text": "eu mrv imo dcs cii", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is the difference between EU MRV and IMO DCS?", "cross_family": true }, { "answer_id": "IMODCS-004", "score": 0.4815470278263092, "sibling_score": 0.4815470278263092, "answer_score": null, "sibling_qid": "KOC-2025-07-0620-Q012", "sibling_text": "new draft ammendments in imodcs", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is the latest amendment to MARPOL Annex VI affecting the IMO DCS?", "cross_family": true } ] }, { "qid": "MUM-2026-08-3849-Q006", "text": "PEOPLE NOT READY TO WORK, HOW ARE YOU GOING TO MAKE THEM WORK ?", "family": "MLC", "subtopic": "", "tid": "MUM-2026-08-3849", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-005", "score": 0.388033390045166, "sibling_score": 0.388033390045166, "answer_score": 0.2649367809295654, "sibling_qid": "MUM-2022-08-0043-Q006", "sibling_text": "continuous violation of rest hours wat will u do as 2e", "sibling_family": "MLC", "via": "sibling", "answer_title": "Repeated rest-hour violations — your action as Second Engineer, and who may permit the work", "cross_family": false }, { "answer_id": "MLC-WRH-B-004", "score": 0.37502211332321167, "sibling_score": 0.37502211332321167, "answer_score": 0.22127398252487182, "sibling_qid": "KOC-2022-01-0051-Q006", "sibling_text": "young seafarer as 2e what to ensure explained him about the mlc work and rest hours and also the night work criteria as second eng will not allow young seafarer to do critical jobs alone", "sibling_family": "MLC", "via": "sibling", "answer_title": "Young seafarers — minimum age, night work, and what the 2/E must ensure", "cross_family": false }, { "answer_id": "MLC-WRH-B-002", "score": 0.34962373971939087, "sibling_score": 0.34962373971939087, "answer_score": null, "sibling_qid": "KOC-2024-04-0333-Q010", "sibling_text": "work rest hours", "sibling_family": "MLC", "via": "sibling", "answer_title": "Work and rest hours under MLC — the criteria, the weekly limit, the intervals", "cross_family": false } ] }, { "qid": "MUM-2026-08-3850-Q001", "text": "what is certificate of class ? when it is given to ship ?", "family": "Surveys - Statutory", "subtopic": "Certificates List", "tid": "MUM-2026-08-3850", "tray": "review", "candidates": [ { "answer_id": "CERT-LIST-P01-001", "score": 0.7673115134239197, "sibling_score": 0.7673115134239197, "answer_score": null, "sibling_qid": "KOL-2020-06-3340-Q004", "sibling_text": "which certificate will tell u about the class to which ship is classified", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "List the statutory certificates carried onboard a ship.", "cross_family": false }, { "answer_id": "CERT-LIST-P02-005", "score": 0.730724036693573, "sibling_score": 0.730724036693573, "answer_score": 0.5702191889286041, "sibling_qid": "MUM-2025-11-2475-Q001", "sibling_text": "why class certificate is there for ship", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Class certificate / classification certificate", "cross_family": false }, { "answer_id": "CERT-LIST-P02-001", "score": 0.6896541714668274, "sibling_score": 0.6896541714668274, "answer_score": null, "sibling_qid": "MUM-2026-09-3972-Q008", "sibling_text": "class certificates reqd on oil tankers", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "SOLAS certificates carried onboard", "cross_family": false } ] }, { "qid": "MUM-2026-08-3850-Q003", "text": "how to take rudder pintle pin and bush clearance ?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "MUM-2026-08-3850", "tray": "review", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.6901794672012329, "sibling_score": 0.6901794672012329, "answer_score": 0.4346278727054596, "sibling_qid": "KOL-2026-02-3922-Q004", "sibling_text": "tell the procedure for taking rudder pintle clearance", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "TRS-002", "score": 0.6046026349067688, "sibling_score": 0.6046026349067688, "answer_score": null, "sibling_qid": "CHE-2026-04-0167-Q005", "sibling_text": "rudder how supported rudder carrier bearing construction what is pintle", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "RUD-DROP-002", "score": 0.5819445997476578, "sibling_score": null, "answer_score": 0.5819445997476578, "sibling_qid": "", "sibling_text": "rudder clearances which where and how taken pintle bush clearance at each pintle top bottom f a and p s on long feeler gauges or pintle od vs bush id by caliper top mid bottom the maximum is the clearance renew the bush at the maker class limit carrier bearing wear down the rudder drop poker trammel gauge hull datum to stock mark against the recorded newbuilding reading", "sibling_family": "", "via": "answer_title", "answer_title": "Rudder clearances: which, where and how taken", "cross_family": false } ] }, { "qid": "MUM-2026-08-3851-Q002", "text": "⁠water coming from all units of AE ? what will be your actions ?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Water from Indicator Cock", "tid": "MUM-2026-08-3851", "tray": "new", "candidates": [ { "answer_id": "SEA-CHEST-006", "score": 0.5999107360839844, "sibling_score": 0.5999107360839844, "answer_score": null, "sibling_qid": "MUM-2026-01-2527-Q004", "sibling_text": "ae water coming out from all indicator cocks what action", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "2/E actions: leak, crack, fouling, stuck valve, valve-life", "cross_family": false }, { "answer_id": "ODC-018", "score": 0.47730398178100586, "sibling_score": 0.47730398178100586, "answer_score": null, "sibling_qid": "MUM-2025-05-2290-Q004", "sibling_text": "er aft bilge well full of water you started ows after permission from ce after running for some time u noticed water level is not going down what can be the reason and actions u will take x que", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "OWS running but the bilge well is not going down — fault diagnosis", "cross_family": true }, { "answer_id": "PIPEFAB-009", "score": 0.4694007635116577, "sibling_score": 0.4694007635116577, "answer_score": 0.3892221838235855, "sibling_qid": "KOL-2020-12-3367-Q004", "sibling_text": "a e sea water pipe leaking action", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "A seawater or fire line is leaking / thinned down — action as 2/E, valve not holding, no hot work possible", "cross_family": true } ] }, { "qid": "MUM-2026-08-3851-Q008", "text": "⁠frosting on TEV ?", "family": "Refrigeration & AC", "subtopic": "TEV / TXV", "tid": "MUM-2026-08-3851", "tray": "new", "candidates": [ { "answer_id": "TEV-TXV-005", "score": 0.6470907926559448, "sibling_score": 0.6470907926559448, "answer_score": null, "sibling_qid": "KOL-2025-01-1795-Q004", "sibling_text": "icing in tev", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Throttling process and superheat control across the TEV", "cross_family": false }, { "answer_id": "REFR-FLT-006", "score": 0.5133956670761108, "sibling_score": 0.5133956670761108, "answer_score": 0.28887683898210526, "sibling_qid": "CHE-2026-05-0561-Q013", "sibling_text": "refer system suction side frosting", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Suction-line / compressor frosting: faults to suspect", "cross_family": false }, { "answer_id": "REFR-FLT-002", "score": 0.46849191188812256, "sibling_score": 0.46849191188812256, "answer_score": 0.2771339237689972, "sibling_qid": "KOL-2026-04-2055-Q005", "sibling_text": "de frosting method in reefer system", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Evaporator defrosting: methods, control, and defrost faults", "cross_family": false } ] }, { "qid": "MUM-2026-08-3851-Q010", "text": "⁠how to know if liner calibration tool is working correctly ?", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "MUM-2026-08-3851", "tray": "review", "candidates": [ { "answer_id": "CYL-LINER-P01-001", "score": 0.6930832862854004, "sibling_score": 0.6930832862854004, "answer_score": 0.42107625454664227, "sibling_qid": "MUM-2026-05-3141-Q007", "sibling_text": "liner calibration taken and assessment", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Carrying out main-engine liner calibration (gauging)", "cross_family": false }, { "answer_id": "CYL-LINER-P01-002", "score": 0.6876432299613953, "sibling_score": 0.6876432299613953, "answer_score": 0.4446061372756958, "sibling_qid": "CHE-2025-12-0461-Q002", "sibling_text": "how will you make sure your liner calibration readings are true", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Getting true readings: tool, position and temperature", "cross_family": false }, { "answer_id": "CYL-LINER-P01-004", "score": 0.6779777407646179, "sibling_score": 0.6779777407646179, "answer_score": null, "sibling_qid": "MUM-2026-05-3153-Q010", "sibling_text": "liner calibration is completed now how will you know the wear and ovality", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Ovality: measuring it and reading the cause", "cross_family": false } ] }, { "qid": "MUM-2026-08-3852-Q001", "text": "How many attempts. What all subjects remain?", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-08-3852", "tray": "new", "candidates": [ { "answer_id": "CFF-P02-001", "score": 0.4444686770439148, "sibling_score": 0.4444686770439148, "answer_score": null, "sibling_qid": "KOL-2017-09-1324-Q005", "sibling_text": "fatigue failure lots of cross qst with all qst finally done with cl 2 thank you all for your support and best of luck for who r in que", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Fatigue failure — what it is and where it occurs", "cross_family": true }, { "answer_id": "NDT-METH-P01-001", "score": 0.41820603609085083, "sibling_score": 0.41820603609085083, "answer_score": null, "sibling_qid": "MUM-2026-03-2946-Q006", "sibling_text": "the best thing you can do is figure out which exams you can appear for whether single subjects pairs or all together it depends on your will and capability for me i appeared in pairs 2 writtens and 1 oral because i knew my capability it differs for everyone many attempt all 6 together as per my knowledge few pass all 6 some pass 4 5 some pass 1 3 and some failed all", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "NDT methods, NDT vs destructive testing, and onboard use", "cross_family": true }, { "answer_id": "MICR-001", "score": 0.4057186543941498, "sibling_score": 0.4057186543941498, "answer_score": null, "sibling_qid": "KOL-2016-05-2987-Q001", "sibling_text": "least count", "sibling_family": "Gauges & Tools", "via": "sibling", "answer_title": "Micrometer least count and reading principle", "cross_family": true } ] }, { "qid": "MUM-2026-08-3852-Q002", "text": "Engine model?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-08-3852", "tray": "review", "candidates": [ { "answer_id": "MIP-264-003", "score": 0.6733763217926025, "sibling_score": 0.6733763217926025, "answer_score": null, "sibling_qid": "MUM-2026-01-1248-Q002", "sibling_text": "engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Calculate engine power: IHP and BHP, and where each is measured", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.6610254645347595, "sibling_score": 0.6610254645347595, "answer_score": 0.43929919004440304, "sibling_qid": "MUM-2026-06-3390-Q001", "sibling_text": "type of engine model", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false }, { "answer_id": "ENG-NOM-006", "score": 0.6429738998413086, "sibling_score": 0.6429738998413086, "answer_score": null, "sibling_qid": "MUM-2026-07-3768-Q004", "sibling_text": "main engine specification", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Short-form asks: SMC-C, LMC, and ME vs MC quickly", "cross_family": false } ] }, { "qid": "MUM-2026-08-3852-Q003", "text": "You have not done ME Engines?", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-08-3852", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.6886348128318787, "sibling_score": 0.6886348128318787, "answer_score": null, "sibling_qid": "KOC-2026-05-0045-Q002", "sibling_text": "whether done me engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "MEB-MEC-P03-001", "score": 0.6461101770401001, "sibling_score": 0.6461101770401001, "answer_score": null, "sibling_qid": "CHE-2026-05-0555-Q005", "sibling_text": "have you done me engines yes meb", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "ME-B vs ME-C — the core difference", "cross_family": true }, { "answer_id": "MCC-MEB-P02-003", "score": 0.5610624551773071, "sibling_score": 0.5610624551773071, "answer_score": null, "sibling_qid": "MUM-2024-07-1084-Q004", "sibling_text": "me engine tha", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Conventional MC / MC-C versus electronic ME — the practical operating differences", "cross_family": true } ] }, { "qid": "MUM-2026-08-3852-Q006", "text": "What is Bio fuel?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "E-Fuel / Bio Fuel", "tid": "MUM-2026-08-3852", "tray": "review", "candidates": [ { "answer_id": "EFBF-330-001", "score": 0.7440863251686096, "sibling_score": 0.7440863251686096, "answer_score": 0.5449040353298187, "sibling_qid": "MUM-2024-11-0965-Q004", "sibling_text": "what is bio fuel", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What are biofuel and e-fuel?", "cross_family": false }, { "answer_id": "EFBF-330-005", "score": 0.6390305161476135, "sibling_score": 0.6390305161476135, "answer_score": null, "sibling_qid": "MUM-2024-06-2231-Q005", "sibling_text": "blending ratio of bio fuel", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Blending ratio of biofuel", "cross_family": false }, { "answer_id": "ALT-FUEL-001", "score": 0.635567843914032, "sibling_score": 0.635567843914032, "answer_score": null, "sibling_qid": "MUM-2026-05-3314-Q003", "sibling_text": "what is alternative fuel", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What alternative or latest marine fuels are used for decarbonisation?", "cross_family": false } ] }, { "qid": "MUM-2026-08-3852-Q007", "text": "New percentage value of allowed FAME?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Quality / CCAI", "tid": "MUM-2026-08-3852", "tray": "new", "candidates": [ { "answer_id": "FQCC-583-A-004", "score": 0.5847212672233582, "sibling_score": 0.5847212672233582, "answer_score": null, "sibling_qid": "MUM-2025-10-2443-Q009", "sibling_text": "max fame content allowed", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "FAME — what it is, why it is blended, and the limits", "cross_family": false }, { "answer_id": "VIT-MECH-B-002", "score": 0.45866158604621887, "sibling_score": 0.45866158604621887, "answer_score": null, "sibling_qid": "KOL-2017-08-1316-Q006", "sibling_text": "fqs setting adjustment", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How VIT is adjusted and set — timing and fuel-quality (FQS) interactions", "cross_family": false }, { "answer_id": "VIT-MECH-B-001", "score": 0.44488757848739624, "sibling_score": 0.44488757848739624, "answer_score": null, "sibling_qid": "KOL-2022-11-1718-Q005", "sibling_text": "why vit at 85 percent rao", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "The VIT / Super VIT curve — breakpoint, range and load-dependent advance/retard", "cross_family": false } ] }, { "qid": "MUM-2026-08-3852-Q008", "text": "Name of new ISO standards.", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Quality / CCAI", "tid": "MUM-2026-08-3852", "tray": "review", "candidates": [ { "answer_id": "FQCC-583-A-002", "score": 0.8043181896209717, "sibling_score": 0.8043181896209717, "answer_score": 0.42553328871726986, "sibling_qid": "MUM-2026-06-3553-Q007", "sibling_text": "name of new iso standards", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "ISO 8217 — the standard, and what changed from 2017 to 2024", "cross_family": false }, { "answer_id": "CBL-INS-B-001", "score": 0.520051121711731, "sibling_score": 0.520051121711731, "answer_score": null, "sibling_qid": "KOC-2024-09-1394-Q006", "sibling_text": "iec standards and its number", "sibling_family": "", "via": "sibling", "answer_title": "IEC and marine cable standards for shipboard cables", "cross_family": false }, { "answer_id": "FQCC-583-A-006", "score": 0.5134520530700684, "sibling_score": 0.5134520530700684, "answer_score": null, "sibling_qid": "KOL-2018-01-1348-Q004", "sibling_text": "iso standards values for hfo particular about catfines limit", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Cat fines — origin, limits, damage and removal", "cross_family": false } ] }, { "qid": "MUM-2026-08-3853-Q005", "text": "Fire isolation valve location and purpose?", "family": "SOLAS - Fire Safety", "subtopic": "Fire Main / Isolation & Relief Valve", "tid": "MUM-2026-08-3853", "tray": "review", "candidates": [ { "answer_id": "FFF-A-003", "score": 0.7618913650512695, "sibling_score": 0.7618913650512695, "answer_score": null, "sibling_qid": "MUM-2026-09-3874-Q005", "sibling_text": "fire isolation valve location and purpose", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fire main, hydrants, isolating and deck valves, and fire-line fittings", "cross_family": false }, { "answer_id": "QCV-001", "score": 0.49925870597362515, "sibling_score": null, "answer_score": 0.49925870597362515, "sibling_qid": "", "sibling_text": "quick closing valve construction and what it is purpose isolate an oil tank supply in a fire operable from a safe position outside the space applies to oil fuel storage settling and daily service tanks of 500 litres and above above the double bottom solas ii 2 reg 4 2 2 3 4", "sibling_family": "", "via": "answer_title", "answer_title": "Quick closing valve — construction and what it is", "cross_family": false }, { "answer_id": "MR-DS-PV-B-006", "score": 0.4843932449817657, "sibling_score": null, "answer_score": 0.4843932449817657, "sibling_qid": "", "sibling_text": "6 deck isolating valve deck relief safety devices and cargo tank pressure deck isolating valve positively isolates the ig plant main from the cargo tank distribution used for maintenance or when the plant is shut down status locked indicated fss requires clear visual indication of valve status per tank stop valves locked under the responsible officer use of an isolating valve generally deliberate ", "sibling_family": "", "via": "answer_title", "answer_title": "6. Deck isolating valve, deck relief/safety devices, and cargo-tank pressure", "cross_family": false } ] }, { "qid": "MUM-2026-08-3854-Q002", "text": "rudder types ?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "MUM-2026-08-3854", "tray": "new", "candidates": [ { "answer_id": "SPR-STERN-006", "score": 0.5548713803291321, "sibling_score": 0.5548713803291321, "answer_score": 0.31173537373542787, "sibling_qid": "MUM-2026-09-3951-Q002", "sibling_text": "types of rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Propeller types & special propulsors", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.5007950663566589, "sibling_score": 0.5007950663566589, "answer_score": null, "sibling_qid": "CHE-2026-05-0637-Q008", "sibling_text": "type of rudder jumping clearance", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "SCR-306-A-006", "score": 0.4816620945930481, "sibling_score": 0.4816620945930481, "answer_score": null, "sibling_qid": "MUM-2024-06-2230-Q005", "sibling_text": "scr and types", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Types of thyristor / SCR", "cross_family": true } ] }, { "qid": "MUM-2026-08-3854-Q004", "text": "K L M clearance what are they ?", "family": "Turbocharger", "subtopic": "K/L/M Values", "tid": "MUM-2026-08-3854", "tray": "new", "candidates": [ { "answer_id": "TC-KLM-330-002", "score": 0.48559045791625977, "sibling_score": 0.48559045791625977, "answer_score": 0.28954512178897857, "sibling_qid": "MUM-2026-02-2578-Q005", "sibling_text": "significance of k l m values there were few more for both functions thanks bro for the group and updating questions regulary", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "What is the K value, why is it important, and what happens if it is wrong?", "cross_family": false }, { "answer_id": "TC-KLM-330-001", "score": 0.4556844234466553, "sibling_score": 0.4556844234466553, "answer_score": 0.3616057217121124, "sibling_qid": "MUM-2025-12-1225-Q008", "sibling_text": "turbocharger k l m clearances", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "What are turbocharger K, L and M clearances, and how is each one derived?", "cross_family": false }, { "answer_id": "TC-CS-P01-006", "score": 0.4312237501144409, "sibling_score": 0.4312237501144409, "answer_score": null, "sibling_qid": "KOC-2025-05-1915-Q002", "sibling_text": "ae turbocharger overhaul how to take clearnce k l m", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "F·Turbocharger overhaul and clearances (ME and AE)", "cross_family": false } ] }, { "qid": "MUM-2026-08-3854-Q005", "text": "6202 and 6303 bearing difference ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Bearing Nomenclature", "tid": "MUM-2026-08-3854", "tray": "new", "candidates": [ { "answer_id": "BRG-NOM-001", "score": 0.640188455581665, "sibling_score": 0.640188455581665, "answer_score": null, "sibling_qid": "MUM-2025-07-2813-Q010", "sibling_text": "6202 6203 differnce", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bearing Numbers, Suffixes and What to State When Ordering", "cross_family": false }, { "answer_id": "XHEAD-303-003", "score": 0.43534088134765625, "sibling_score": 0.43534088134765625, "answer_score": null, "sibling_qid": "KOC-2023-01-0976-Q005", "sibling_text": "difference between cross head bearing pin and crosshead bearing pin y so", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead pin and bearing design, ovality and diameter checks, modern shell design", "cross_family": false }, { "answer_id": "XHD-BRG-B-006", "score": 0.4331843852996826, "sibling_score": 0.4331843852996826, "answer_score": null, "sibling_qid": "KOL-2021-11-1642-Q003", "sibling_text": "difference between cross head bearing of man and sulzer", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "MAN B&W versus Sulzer / Wärtsilä crosshead bearing and lubrication", "cross_family": false } ] }, { "qid": "MUM-2026-08-3854-Q006", "text": "normalising and tampering ?", "family": "NDT & Material Testing", "subtopic": "Heat Treatment", "tid": "MUM-2026-08-3854", "tray": "review", "candidates": [ { "answer_id": "HT-A-003", "score": 0.6918922066688538, "sibling_score": 0.6918922066688538, "answer_score": 0.2614868700504303, "sibling_qid": "MUM-2024-09-2770-Q005", "sibling_text": "normalising", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Normalising: process, still-air cooling, and how it differs from annealing", "cross_family": false }, { "answer_id": "HT-A-002", "score": 0.5382667183876038, "sibling_score": 0.5382667183876038, "answer_score": null, "sibling_qid": "MUM-2025-12-2507-Q002", "sibling_text": "anealling normalising", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Annealing: process, cooling control, and the reused copper washer", "cross_family": false }, { "answer_id": "PAR-ROLL-007", "score": 0.2774941951036453, "sibling_score": null, "answer_score": 0.2774941951036453, "sibling_qid": "", "sibling_text": "07 variant garbled wording declared interpretation parametric rolling declared reading the variants paramatric paramistic parabolic roling are mis spellings of parametric rolling answer as parametric roll see cards 01 and 04 offer the redirect if the examiner means a genuinely different term ask do not manufacture a definition for a non standard word", "sibling_family": "", "via": "answer_title", "answer_title": "07. Variant / garbled wording (declared interpretation: parametric rolling)", "cross_family": false } ] }, { "qid": "MUM-2026-08-3855-Q002", "text": "DIFFERENCE BETWEEN INTITIAL & DETAILED INSPECTION ?", "family": "Surveys - Statutory", "subtopic": "PSC / Flag / RO / CIC / MoU", "tid": "MUM-2026-08-3855", "tray": "review", "candidates": [ { "answer_id": "AUDIT-IE-002", "score": 0.7011160254478455, "sibling_score": 0.7011160254478455, "answer_score": null, "sibling_qid": "MUM-2026-05-3290-Q005", "sibling_text": "initial and detailed inspection", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "As Second Engineer, preparing for and handling an internal audit on board", "cross_family": false }, { "answer_id": "FLAG-ST-003", "score": 0.5552155375480652, "sibling_score": 0.5552155375480652, "answer_score": null, "sibling_qid": "KOC-2025-07-0631-Q002", "sibling_text": "difference between fsi and psi inspection", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Flag state vs port state / PSC / PSI vs class vs coastal state", "cross_family": false }, { "answer_id": "PSC-RO-P02-005", "score": 0.4982806444168091, "sibling_score": 0.4982806444168091, "answer_score": 0.4503575086593628, "sibling_qid": "KOC-2025-07-0625-Q002", "sibling_text": "1 psc initial detailed expanded survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What are the initial, more detailed and expanded PSC inspections?", "cross_family": false } ] }, { "qid": "MUM-2026-08-3855-Q005", "text": "WHAT IS INTERIM AUDIT ?", "family": "ISM Code", "subtopic": "ISM / SMS / Audit", "tid": "MUM-2026-08-3855", "tray": "new", "candidates": [ { "answer_id": "ISM-SMCDOC-A-001", "score": 0.6484429240226746, "sibling_score": 0.6484429240226746, "answer_score": null, "sibling_qid": "MUM-2025-12-0648-Q004", "sibling_text": "wat is interim audit and initial audit", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM certificates: the DOC and SMC family", "cross_family": false }, { "answer_id": "ISM-AUD-P03-001", "score": 0.6315373778343201, "sibling_score": 0.6315373778343201, "answer_score": 0.3246144026517868, "sibling_qid": "KOL-2026-02-1180-Q003", "sibling_text": "difference between audit and interim audit", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Audit vs survey vs inspection; initial vs interim audit", "cross_family": false }, { "answer_id": "ISM-SMCDOC-A-002", "score": 0.6014586091041565, "sibling_score": 0.6014586091041565, "answer_score": null, "sibling_qid": "KOC-2025-01-0512-Q005", "sibling_text": "interim doc interim smc who is eligible for interim smc audit", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Interim DOC — when, why, how, and how long", "cross_family": false } ] }, { "qid": "MUM-2026-08-3855-Q008", "text": "WHERE IS FRC USED ?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Rescue Boat / Fast Rescue", "tid": "MUM-2026-08-3855", "tray": "new", "candidates": [ { "answer_id": "RB-FRB-001", "score": 0.38431626558303833, "sibling_score": 0.38431626558303833, "answer_score": null, "sibling_qid": "MUM-2026-08-3855-Q007", "sibling_text": "difference between rescue boat frc", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Rescue boat vs fast rescue boat — and where a fast rescue boat is required", "cross_family": false }, { "answer_id": "CABLE-INSUL-D-002", "score": 0.34723562002182007, "sibling_score": 0.34723562002182007, "answer_score": null, "sibling_qid": "KOL-2019-08-2315-Q004", "sibling_text": "frls cable", "sibling_family": "", "via": "sibling", "answer_title": "Armouring, sheathing and flame-retardant / FRLS cable", "cross_family": false }, { "answer_id": "CPFE-583-001", "score": 0.3340024948120117, "sibling_score": 0.3340024948120117, "answer_score": null, "sibling_qid": "MUM-2025-01-2267-Q003", "sibling_text": "framo system working", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "The Framo system — what it is, how it works, and the driving mechanism", "cross_family": true } ] }, { "qid": "MUM-2026-08-3855-Q010", "text": "WHAT ISM STANDARD FOLLOWED IN NEW BUNKERS ITS TYPES & BOTH ISO STANDARDS ?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Quality / CCAI", "tid": "MUM-2026-08-3855", "tray": "new", "candidates": [ { "answer_id": "FQCC-583-A-002", "score": 0.6297861933708191, "sibling_score": 0.6297861933708191, "answer_score": null, "sibling_qid": "MUM-2022-10-0055-Q002", "sibling_text": "bunker fuel under which iso", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "ISO 8217 — the standard, and what changed from 2017 to 2024", "cross_family": false }, { "answer_id": "FQCC-583-A-003", "score": 0.539950966835022, "sibling_score": 0.539950966835022, "answer_score": 0.41156949400901793, "sibling_qid": "MUM-2025-10-1209-Q001", "sibling_text": "f o bunker specification", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel grades and marine fuel naming", "cross_family": false }, { "answer_id": "SMSFR-001", "score": 0.516748309135437, "sibling_score": 0.516748309135437, "answer_score": null, "sibling_qid": "KOL-2026-04-1215-Q004", "sibling_text": "what is isms key ans explain everything regarding isms along with the codes and their specifications of coverage also gave him the example for iso 8217 2017 for bunker sample testing specifications", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What are the functional requirements of the ISM Code and the SMS — and the requirement for internal audit?", "cross_family": true } ] }, { "qid": "MUM-2026-08-3855-Q011", "text": "WHAT IS FAME & WHY INCREASED FROM 7-100℅ ?", "family": "Automation & Controls", "subtopic": "Thermistor / Thermostat", "tid": "MUM-2026-08-3855", "tray": "new", "candidates": [ { "answer_id": "FQCC-583-A-004", "score": 0.34331169724464417, "sibling_score": 0.34331169724464417, "answer_score": 0.2613309264183044, "sibling_qid": "MUM-2025-10-2443-Q009", "sibling_text": "max fame content allowed", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "FAME — what it is, why it is blended, and the limits", "cross_family": true }, { "answer_id": "EFBF-330-004", "score": 0.289915531873703, "sibling_score": 0.289915531873703, "answer_score": 0.2072690486907959, "sibling_qid": "MUM-2025-12-2901-Q006", "sibling_text": "what is fame", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is FAME?", "cross_family": true }, { "answer_id": "BIO-FUEL-005", "score": 0.289915531873703, "sibling_score": 0.289915531873703, "answer_score": null, "sibling_qid": "MUM-2026-01-0674-Q008", "sibling_text": "what is fame", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Biofuel and FAME as marine fuel", "cross_family": true } ] }, { "qid": "MUM-2026-08-3855-Q014", "text": "WHAT IS ECONOMIC, EEZ, TERITORRIAL ZONES ?", "family": "Other Conventions", "subtopic": "EEZ / PSSA / Special Area", "tid": "MUM-2026-08-3855", "tray": "new", "candidates": [ { "answer_id": "UNCLOS-003", "score": 0.5687593817710876, "sibling_score": 0.5687593817710876, "answer_score": 0.42212953269481657, "sibling_qid": "KOL-2025-09-1054-Q007", "sibling_text": "territorial waters", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What are the maritime zones under UNCLOS — territorial waters, the contiguous zone and the international maritime boundary?", "cross_family": false }, { "answer_id": "UNCLOS-004", "score": 0.5427505373954773, "sibling_score": 0.5427505373954773, "answer_score": null, "sibling_qid": "KOL-2023-04-0742-Q004", "sibling_text": "continental shelf and unclos", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is the continental shelf under UNCLOS and what is its range?", "cross_family": false }, { "answer_id": "EEZ-PSSA-004", "score": 0.5071958899497986, "sibling_score": 0.5071958899497986, "answer_score": 0.4856270134449005, "sibling_qid": "KOL-2023-07-0759-Q004", "sibling_text": "indian coastal zones and limits not general limits", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Indian maritime zones — territorial sea, contiguous zone, EEZ", "cross_family": false } ] }, { "qid": "MUM-2026-08-3860-Q001", "text": "Type of engine and vessel sailed?", "family": "Status & Introduction", "subtopic": "Ship and Engine Type", "tid": "MUM-2026-08-3860", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8303082585334778, "sibling_score": 0.8303082585334778, "answer_score": null, "sibling_qid": "CHE-2026-03-0255-Q001", "sibling_text": "type of vessel and engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.7902341485023499, "sibling_score": 0.7902341485023499, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q001", "sibling_text": "type of ship sailed and engines details", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7293991446495056, "sibling_score": 0.7293991446495056, "answer_score": null, "sibling_qid": "KOL-2025-12-2031-Q002", "sibling_text": "type of ship and engine sailed engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "MUM-2026-08-3861-Q001", "text": "Type of engine sailed?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-08-3861", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8497133851051331, "sibling_score": 0.8497133851051331, "answer_score": null, "sibling_qid": "MUM-2026-04-1007-Q002", "sibling_text": "type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.7688729166984558, "sibling_score": 0.7688729166984558, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q001", "sibling_text": "type of ship sailed and engines details", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7366727590560913, "sibling_score": 0.7366727590560913, "answer_score": null, "sibling_qid": "KOL-2025-12-2031-Q002", "sibling_text": "type of ship and engine sailed engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "MUM-2026-08-3861-Q002", "text": "Type of boiler sailed?", "family": "Status & Introduction", "subtopic": "Company Introduction", "tid": "MUM-2026-08-3861", "tray": "review", "candidates": [ { "answer_id": "BLR-CAP-BOILER-CAPACITY-RATING-005", "score": 0.6706984043121338, "sibling_score": 0.6706984043121338, "answer_score": null, "sibling_qid": "MUM-2026-09-3891-Q009", "sibling_text": "type of boiler", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What are boiler pressure ratings or maximum working pressure?", "cross_family": true }, { "answer_id": "AE-CRP-005", "score": 0.6689642667770386, "sibling_score": 0.6689642667770386, "answer_score": null, "sibling_qid": "MUM-2026-04-1007-Q002", "sibling_text": "type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "BLR-DRUM-002", "score": 0.6547995805740356, "sibling_score": 0.6547995805740356, "answer_score": null, "sibling_qid": "MUM-2026-06-3660-Q005", "sibling_text": "boiler type and boiler construction", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Steam-drum construction, material and plate manufacture, and construction-stage tests", "cross_family": true } ] }, { "qid": "MUM-2026-08-3861-Q007", "text": "Clearance how will u take?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "", "tid": "MUM-2026-08-3861", "tray": "new", "candidates": [ { "answer_id": "BCL-592-002", "score": 0.5863492488861084, "sibling_score": 0.5863492488861084, "answer_score": null, "sibling_qid": "MUM-2026-05-3001-Q006S2", "sibling_text": "how to take clearance", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Take me through all the clearances you measure on the main engine and how you take each one.", "cross_family": true }, { "answer_id": "BRG-NOM-004", "score": 0.5614042282104492, "sibling_score": 0.5614042282104492, "answer_score": null, "sibling_qid": "KOC-2025-10-1946-Q011", "sibling_text": "what happens if clearance increases", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bearing Nip/Crush, Clearance, and How the Shell is Held", "cross_family": false }, { "answer_id": "BCL-592-003", "score": 0.5588255524635315, "sibling_score": 0.5588255524635315, "answer_score": null, "sibling_qid": "KOC-2022-07-0966-Q016", "sibling_text": "what happens if more less clearances", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What are the effects of bearing clearance being too high or too low?", "cross_family": false } ] }, { "qid": "MUM-2026-09-3862-Q009", "text": "Purifier bowl how is it balanced? ", "family": "Risk & Safety Management", "subtopic": "Risk Assessment / Management", "tid": "MUM-2026-09-3862", "tray": "new", "candidates": [ { "answer_id": "PURIF-BOWL-P02-002", "score": 0.5793635249137878, "sibling_score": 0.5793635249137878, "answer_score": null, "sibling_qid": "MUM-2026-09-3896-Q010", "sibling_text": "balancing of purifier", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Drive, rated RPM, overload, vibration / wobbling & dynamic balancing — causes and troubleshooting", "cross_family": true }, { "answer_id": "PURIF-BOWL-P02-003", "score": 0.5611040592193604, "sibling_score": 0.5611040592193604, "answer_score": null, "sibling_qid": "KOL-2018-05-3149-Q001", "sibling_text": "how is purifier s bowl s weight is supported", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Vertical shaft, bowl height, bearings & load support — checks, adjustment, overhaul, renewal", "cross_family": true }, { "answer_id": "PURIF-BOWL-P02-001", "score": 0.5243353247642517, "sibling_score": 0.5243353247642517, "answer_score": null, "sibling_qid": "KOL-2019-01-3205-Q003", "sibling_text": "purifier manual operation who takes the load of bowl", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Bowl opening, closing & manual desludging — mechanism, manual operation, failure causes", "cross_family": true } ] }, { "qid": "MUM-2026-09-3864-Q004", "text": "Purifier bowl unbalanced reason and correction?", "family": "Purifier & Centrifuges", "subtopic": "Purifier Operation / Bowl", "tid": "MUM-2026-09-3864", "tray": "new", "candidates": [ { "answer_id": "PUR-DSL-002", "score": 0.6344248652458191, "sibling_score": 0.6344248652458191, "answer_score": 0.4748779475688934, "sibling_qid": "MUM-2024-06-2229-Q002", "sibling_text": "purifier overflow reasons and bowl height adjustment in detail", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Purifier overflow after desludging — causes, and checking or adjusting bowl height", "cross_family": false }, { "answer_id": "PURIF-BOWL-P02-002", "score": 0.6315179467201233, "sibling_score": 0.6315179467201233, "answer_score": null, "sibling_qid": "KOL-2022-09-3571-Q003", "sibling_text": "purifier bowl cleaned boxed back as soon as feed is given abnormal vibration is observed reasons rao", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Drive, rated RPM, overload, vibration / wobbling & dynamic balancing — causes and troubleshooting", "cross_family": false }, { "answer_id": "PURIF-BOWL-P02-001", "score": 0.614662230014801, "sibling_score": 0.614662230014801, "answer_score": null, "sibling_qid": "CHE-2025-11-0449-Q003", "sibling_text": "purifier bowl not closing reasons", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Bowl opening, closing & manual desludging — mechanism, manual operation, failure causes", "cross_family": false } ] }, { "qid": "MUM-2026-09-3864-Q008", "text": "Hoop stress?", "family": "NDT & Material Testing", "subtopic": "Stress / Strain", "tid": "MUM-2026-09-3864", "tray": "new", "candidates": [ { "answer_id": "STRSTR-298-009", "score": 0.5770192742347717, "sibling_score": 0.5770192742347717, "answer_score": 0.3672102183103561, "sibling_qid": "KOL-2021-04-1584-Q003", "sibling_text": "hook stress", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "What is Hooke’s law in stress-strain behaviour?", "cross_family": false }, { "answer_id": "STRSTR-298-003", "score": 0.5464736223220825, "sibling_score": 0.5464736223220825, "answer_score": null, "sibling_qid": "KOL-2025-03-1801-Q003", "sibling_text": "tensile stress why carried out information we get", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "How is a tensile test carried out, and what do UTM, UTS and the stress-strain curve give you?", "cross_family": false }, { "answer_id": "CREEP-FAT-P01-001", "score": 0.5404464602470398, "sibling_score": 0.5404464602470398, "answer_score": null, "sibling_qid": "KOC-2024-12-1021-Q015", "sibling_text": "creep stress", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "What is creep, and where does it occur in a marine engine?", "cross_family": false } ] }, { "qid": "MUM-2026-09-3865-Q002", "text": "Fail safe?", "family": "Electrical - Protection & Relays", "subtopic": "Protection / Relays", "tid": "MUM-2026-09-3865", "tray": "new", "candidates": [ { "answer_id": "AUC-P03-05", "score": 0.539685070514679, "sibling_score": 0.539685070514679, "answer_score": 0.3524360790848732, "sibling_qid": "MUM-2026-07-3698-Q003", "sibling_text": "fail set and failsafe", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Fail-safe, fail-set and redundancy — three-way jacket-water valve on loss of signal", "cross_family": true }, { "answer_id": "REEF-SAFE-001", "score": 0.5299820899963379, "sibling_score": 0.5299820899963379, "answer_score": null, "sibling_qid": "CHE-2025-12-0225-Q005", "sibling_text": "refer safeties", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Refrigeration plant and reefer-room safeties — what protects the machinery, and what protects the man?", "cross_family": true }, { "answer_id": "IGAT-583-004", "score": 0.5270862579345703, "sibling_score": 0.5270862579345703, "answer_score": null, "sibling_qid": "KOC-2021-07-0013-Q006", "sibling_text": "ig fail what action int", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "As Second Engineer, what actions do you take if the inert gas plant of a crude oil tanker is repeatedly tripping on IG high temperature?", "cross_family": true } ] }, { "qid": "MUM-2026-09-3866-Q003", "text": "How much voltage to reduce if we have 50hz supply in drydock?", "family": "Drydock & Underwater Surveys", "subtopic": "Drydock / Hull Repair / Sea Chest", "tid": "MUM-2026-09-3866", "tray": "review", "candidates": [ { "answer_id": "SHORE-CONN-P04-001", "score": 0.6893503069877625, "sibling_score": 0.6893503069877625, "answer_score": 0.5372543871402741, "sibling_qid": "MUM-2026-09-3866-Q002", "sibling_text": "drydock has only 50hz supply what will you do", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Accepting shore supply at a different frequency or voltage (incl. dry dock)", "cross_family": false }, { "answer_id": "WBS-C-002", "score": 0.4407984375953674, "sibling_score": null, "answer_score": 0.4407984375953674, "sibling_qid": "", "sibling_text": "the arc welding set transformer construction output current control and ordering parameters it is a step down transformer primary on ship s supply secondary low voltage high current ac set transformer alone dc set transformer rectifier or a motor generator inverter open circuit voltage no arc 50 90 v representative read u0 on the rating plate it is limited to reduce shock risk not because it is sa", "sibling_family": "", "via": "answer_title", "answer_title": "The arc welding set — transformer construction, output, current control and ordering parameters", "cross_family": false }, { "answer_id": "ELEC-SAFE-007", "score": 0.4368954390287399, "sibling_score": null, "answer_score": 0.4368954390287399, "sibling_qid": "", "sibling_text": "portable equipment sockets light fittings and galley appliances reduced voltage where practicable often 110 v ship flag dependent some 220 240 v isolating transformer earth leakage elcb rcd protection where required by the ship s portable wet area design and sms the personal safeguard", "sibling_family": "", "via": "answer_title", "answer_title": "Portable equipment, sockets, light fittings and galley appliances", "cross_family": false } ] }, { "qid": "MUM-2026-09-3866-Q005", "text": "What is potential discrimination?", "family": "Electrical - Protection & Relays", "subtopic": "Protection / Relays", "tid": "MUM-2026-09-3866", "tray": "new", "candidates": [ { "answer_id": "OC-UV-TRIP-007", "score": 0.39728909730911255, "sibling_score": 0.39728909730911255, "answer_score": null, "sibling_qid": "KOC-2025-07-0633-Q034", "sibling_text": "where it could happen", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "General overcurrent / undervoltage trips — alarms, values and failure effects", "cross_family": false }, { "answer_id": "IMDG-006", "score": 0.3792913556098938, "sibling_score": 0.3792913556098938, "answer_score": null, "sibling_qid": "KOC-2025-08-0646-Q013", "sibling_text": "segregation criteria", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Explain the segregation of dangerous cargo and the segregation criteria", "cross_family": true }, { "answer_id": "PTRIP-222-002", "score": 0.35441821813583374, "sibling_score": 0.35441821813583374, "answer_score": null, "sibling_qid": "KOC-2025-03-1512-Q008", "sibling_text": "why preferential tripping how it works what all non essentials will trip and when", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Stages, load-shedding sequence, settings, time delays and loads shed", "cross_family": false } ] }, { "qid": "MUM-2026-09-3866-Q009", "text": "What is Equalising bar and construction?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Pmax / Pcomp", "tid": "MUM-2026-09-3866", "tray": "new", "candidates": [ { "answer_id": "GEN-LSI-B-003", "score": 0.4442675709724426, "sibling_score": 0.4442675709724426, "answer_score": 0.2941137939691543, "sibling_qid": "KOL-2019-12-2354-Q003", "sibling_text": "equalising line", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "03. Purpose of the equalising line / equalising connection in parallel operation", "cross_family": true }, { "answer_id": "EQ-LINE-002", "score": 0.4437378942966461, "sibling_score": 0.4437378942966461, "answer_score": 0.29775789976119993, "sibling_qid": "MUM-2026-05-3227-Q005", "sibling_text": "equalising line", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Where the equalising line is used and connected in a refrigeration plant", "cross_family": true }, { "answer_id": "TEV-TXV-003", "score": 0.3861358165740967, "sibling_score": 0.3861358165740967, "answer_score": null, "sibling_qid": "MUM-2022-12-1037-Q008", "sibling_text": "specially significance of equalizing line", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Equalizing line — internal vs external equalized TEV", "cross_family": true } ] }, { "qid": "MUM-2026-09-3866-Q010", "text": "What is rotary convertor?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Cycloconverter", "tid": "MUM-2026-09-3866", "tray": "new", "candidates": [ { "answer_id": "CYC-599-001", "score": 0.6430094838142395, "sibling_score": 0.6430094838142395, "answer_score": null, "sibling_qid": "CHE-2026-05-0637-Q012", "sibling_text": "cyclo converter", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a cycloconverter and how does it work?", "cross_family": false }, { "answer_id": "CYC-599-004", "score": 0.6109985113143921, "sibling_score": 0.6109985113143921, "answer_score": 0.40683317482471465, "sibling_qid": "KOL-2025-08-2823-Q002", "sibling_text": "cycloconverter and synchro convertor mechanism and use", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Explain the cycloconverter and synchroconverter with diagrams. What are their applications, and how is propulsion speed controlled with them?", "cross_family": false }, { "answer_id": "BLRBURN-003", "score": 0.40964223742485045, "sibling_score": null, "answer_score": 0.40964223742485045, "sibling_qid": "", "sibling_text": "draw and explain the rotary cup burner its working and speed of rotation rotary centrifugal atomizing a spinning cup plus a primary air blast atomize the oil not the oil s pressure oil fed at low pressure to the inside of a tapered rotating cup", "sibling_family": "", "via": "answer_title", "answer_title": "Draw and explain the rotary cup burner — its working and speed of rotation.", "cross_family": false } ] }, { "qid": "MUM-2026-09-3868-Q004", "text": "Strengthening member?", "family": "Auxiliary Equipment", "subtopic": "Hawse Pipe", "tid": "MUM-2026-09-3868", "tray": "new", "candidates": [ { "answer_id": "KGF-A-005", "score": 0.636896550655365, "sibling_score": 0.636896550655365, "answer_score": 0.5476713001728057, "sibling_qid": "MUM-2025-07-0365-Q002", "sibling_text": "strengthening members providing transverse and longitudinal strength", "sibling_family": "", "via": "sibling", "answer_title": "Strengthening members & longitudinal / transverse strength", "cross_family": false }, { "answer_id": "PPS-230-005", "score": 0.6106250286102295, "sibling_score": 0.6106250286102295, "answer_score": null, "sibling_qid": "CHE-2026-08-3878-Q002", "sibling_text": "fwd strengthening", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Panting and pounding arrangements: extent and alternative members", "cross_family": true }, { "answer_id": "SOLAS12-BC-F-004", "score": 0.6035867929458618, "sibling_score": 0.6035867929458618, "answer_score": 0.40629631429910656, "sibling_qid": "KOL-2022-10-0692-Q003", "sibling_text": "what is the strengthening member of upper", "sibling_family": "", "via": "sibling", "answer_title": "Highly stressed parts & strengthening members", "cross_family": false } ] }, { "qid": "MUM-2026-09-3869-Q003", "text": "⁠How to fight container fire at 2nd tier?", "family": "SOLAS - Fire Safety", "subtopic": "Cargo Hold Fire", "tid": "MUM-2026-09-3869", "tray": "new", "candidates": [ { "answer_id": "CONT-FIRE-002", "score": 0.6420461535453796, "sibling_score": 0.6420461535453796, "answer_score": 0.5248142600059509, "sibling_qid": "KOL-2025-10-1103-Q003", "sibling_text": "container fire fighting methods", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "How do you fight a fire in containers on deck, or where the affected container is not directly accessible?", "cross_family": false }, { "answer_id": "FIRE-P04-06", "score": 0.6316268444061279, "sibling_score": 0.6316268444061279, "answer_score": null, "sibling_qid": "MUM-2026-04-0913-Q007", "sibling_text": "container firefighting", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Container-ship additional firefighting — SOLAS II-2/10.7.3, water-mist lance, HydroPen", "cross_family": false }, { "answer_id": "CH-FIRE-002", "score": 0.6173136830329895, "sibling_score": 0.6173136830329895, "answer_score": null, "sibling_qid": "KOL-2019-01-0255-Q002", "sibling_text": "fire extinguishing arrangements for cargo hold fire in container hold how to recognise specific container in the middle of stack container not accessible temp gun he didn t agree", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Cargo hold fixed firefighting / extinguishing arrangements", "cross_family": false } ] }, { "qid": "MUM-2026-09-3869-Q004", "text": "⁠Explain hydrogen and it’s working?", "family": "SOLAS - Fire Safety", "subtopic": "Container Firefighting / HydroPen", "tid": "MUM-2026-09-3869", "tray": "new", "candidates": [ { "answer_id": "BIO-FUEL-002", "score": 0.46878767013549805, "sibling_score": 0.46878767013549805, "answer_score": null, "sibling_qid": "MUM-2026-02-1281-Q008", "sibling_text": "gren hydrogen blue hydrogen", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Green, blue and grey hydrogen and ammonia — what the colours mean", "cross_family": true }, { "answer_id": "ALT-FUEL-006", "score": 0.4490535855293274, "sibling_score": 0.4490535855293274, "answer_score": 0.4186399012804031, "sibling_qid": "KOC-2024-01-0285-Q004", "sibling_text": "hydrogen technology", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is hydrogen technology as an alternative marine fuel?", "cross_family": true }, { "answer_id": "BDC-P01-01", "score": 0.4467134475708008, "sibling_score": 0.4467134475708008, "answer_score": null, "sibling_qid": "CHE-2026-03-0345-Q004", "sibling_text": "supplies from battery and how many battery onboard your ship don t say maintenance free battery then he is asking how the hydrogen gas is released so better go with normal type battery", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "Shipboard batteries — purpose, types and where they are used", "cross_family": true } ] }, { "qid": "MUM-2026-09-3869-Q011", "text": "3-ph 3-wire and 3-ph 4-wire system, advantages?", "family": "Electrical - Distribution & MSB", "subtopic": "Voltage System (440V / 690V / HV)", "tid": "MUM-2026-09-3869", "tray": "new", "candidates": [ { "answer_id": "VOLT-SYS-003", "score": 0.6270834803581238, "sibling_score": 0.6270834803581238, "answer_score": 0.40463641136884687, "sibling_qid": "MUM-2026-01-1905-Q002", "sibling_text": "what is 3 phase 3 wire and 3 phase 4 wire system advantages and disadvantages", "sibling_family": "Electrical - Distribution & MSB", "via": "sibling", "answer_title": "Three-phase three-wire versus four-wire, and why ships use three-wire", "cross_family": false }, { "answer_id": "EARTH-NER-A-004", "score": 0.6061875224113464, "sibling_score": 0.6061875224113464, "answer_score": 0.45507265031337735, "sibling_qid": "MUM-2026-09-3983-Q015", "sibling_text": "3wire and 4 wire system", "sibling_family": "Electrical - Distribution & MSB", "via": "sibling", "answer_title": "Three-phase three-wire vs four-wire — and why the fourth wire", "cross_family": false }, { "answer_id": "SPHS-B-009", "score": 0.4000968709588051, "sibling_score": null, "answer_score": 0.4000968709588051, "sibling_qid": "", "sibling_text": "what is the effect of losing one phase on a three phase three wire system compared with a three phase four wire system declared reading single phase fault taken as loss of one supply phase if the examiner means a phase to earth fault the answer changes offer to take that instead ship s 440 v main system is typically three phase three wire insulated unearthed ship specific confirm against the ship ", "sibling_family": "", "via": "answer_title", "answer_title": "What is the effect of losing one phase on a three-phase three-wire system compared with a three-phase four-wire system?", "cross_family": false } ] }, { "qid": "MUM-2026-09-3870-Q005", "text": "MLC 5 titles?", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2026-09-3870", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.5360426902770996, "sibling_score": 0.5360426902770996, "answer_score": 0.25950365513563156, "sibling_qid": "KOC-2026-05-2135-Q011", "sibling_text": "mlc titles explain title 1 explain dmlc part 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "CLC-CIV-B-003", "score": 0.4376407563686371, "sibling_score": 0.4376407563686371, "answer_score": null, "sibling_qid": "KOL-2020-02-0392-Q002", "sibling_text": "llmc prescise 5 words", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "LLMC: purpose, scope and limitation of maritime claims", "cross_family": true }, { "answer_id": "MLC-WRH-B-006", "score": 0.4361726939678192, "sibling_score": 0.4361726939678192, "answer_score": 0.2383308619260788, "sibling_qid": "MUM-2026-06-3645-Q001", "sibling_text": "certificates of mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false } ] }, { "qid": "MUM-2026-09-3872-Q004", "text": "Why UTI is grounded before measurement?", "family": "Cargo Ops - Tankers", "subtopic": "UTI Tape", "tid": "MUM-2026-09-3872", "tray": "new", "candidates": [ { "answer_id": "COT-P03-02", "score": 0.486725389957428, "sibling_score": 0.486725389957428, "answer_score": 0.37279500663280485, "sibling_qid": "KOC-2026-04-0901-Q018", "sibling_text": "uti in tanker soundings how to use procedure and what does u t and i stands for", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "UTI tape — purpose, principle, safe closed gauging, and ullage / temperature / interface", "cross_family": false }, { "answer_id": "NER-HV-P04-001", "score": 0.45954233407974243, "sibling_score": 0.45954233407974243, "answer_score": null, "sibling_qid": "KOL-2020-03-2378-Q001", "sibling_text": "hv why while isolating equipment must be earthed down ner", "sibling_family": "", "via": "sibling", "answer_title": "What an NER is, where it is used, and why it is fitted in HV systems", "cross_family": false }, { "answer_id": "TNK-SAFE-BF26-003", "score": 0.43779969215393066, "sibling_score": 0.43779969215393066, "answer_score": null, "sibling_qid": "MUM-2023-09-1400-Q002", "sibling_text": "what is uti and what r electrical safeties in uti oil tanker", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What safeties, including electrical safeties and Ex ratings, are provided on the deck of a tanker?", "cross_family": false } ] }, { "qid": "MUM-2026-09-3872-Q010", "text": "What is shunt and where its use?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Galvanometer / Multimeter / Clamp Meter", "tid": "MUM-2026-09-3872", "tray": "new", "candidates": [ { "answer_id": "GMC-583-B-003", "score": 0.6000716686248779, "sibling_score": 0.6000716686248779, "answer_score": null, "sibling_qid": "MUM-2024-07-1082-Q011", "sibling_text": "what is shunt", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Connecting the meters in circuit, and extending the range with a shunt or a multiplier", "cross_family": false }, { "answer_id": "DCMOT-A-001", "score": 0.5593423843383789, "sibling_score": 0.5593423843383789, "answer_score": null, "sibling_qid": "MUM-2024-03-1431-Q006", "sibling_text": "what is meant by shunt where it is used", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types, characteristics and shipboard use of DC motors", "cross_family": true }, { "answer_id": "SCR-306-B-007", "score": 0.3736531734466553, "sibling_score": 0.3736531734466553, "answer_score": null, "sibling_qid": "KOL-2024-03-2704-Q002", "sibling_text": "snubber circuit explained thyrsitor protection against dv dt voltage surges using r and c satisfied", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "SCR snubber circuit and dv/dt protection", "cross_family": false } ] }, { "qid": "MUM-2026-09-3873-Q005", "text": "Draw the diagram of power cable?", "family": "Electrical - Generator & Alternator", "subtopic": "Star or Delta Connection", "tid": "MUM-2026-09-3873", "tray": "new", "candidates": [ { "answer_id": "RPT-B-001", "score": 0.6455203294754028, "sibling_score": 0.6455203294754028, "answer_score": null, "sibling_qid": "KOC-2024-10-1418-Q002", "sibling_text": "draw reverse power trip diagram", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Construction & directional working — coils and the aluminium disc", "cross_family": false }, { "answer_id": "PF-D-001", "score": 0.6419689059257507, "sibling_score": 0.6419689059257507, "answer_score": null, "sibling_qid": "KOC-2025-07-1552-Q005", "sibling_text": "draw power triangle with cos phi mep", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "How kW, kVA, kVAR, current and the power triangle relate to power factor", "cross_family": false }, { "answer_id": "WIND-CRN-P01-002", "score": 0.6343225240707397, "sibling_score": 0.6343225240707397, "answer_score": 0.47106117904186245, "sibling_qid": "KOC-2024-12-1445-Q004", "sibling_text": "draw crane circuit diagram", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Crane motor power & control circuit (draw and explain)", "cross_family": true } ] }, { "qid": "MUM-2026-09-3874-Q002", "text": "As a 2E what do you do in Hongkong convention?", "family": "Other Conventions", "subtopic": "Hong Kong Convention / IHM", "tid": "MUM-2026-09-3874", "tray": "review", "candidates": [ { "answer_id": "HKC-IHM-A-005", "score": 0.7432887554168701, "sibling_score": 0.7432887554168701, "answer_score": 0.21939964443445206, "sibling_qid": "MUM-2026-08-3853-Q002", "sibling_text": "as a 2e what do you do in hongkong convention", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Second engineer's role and onboard HKC / IHM compliance", "cross_family": false }, { "answer_id": "HKC-IHM-A-002", "score": 0.577199399471283, "sibling_score": 0.577199399471283, "answer_score": null, "sibling_qid": "MUM-2025-11-2864-Q011", "sibling_text": "tell latest convention hongkong", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "HKC status, entry into force and recent references", "cross_family": false }, { "answer_id": "HKC-IHM-A-001", "score": 0.5657121539115906, "sibling_score": 0.5657121539115906, "answer_score": 0.28810155391693115, "sibling_qid": "KOL-2026-03-1202-Q004", "sibling_text": "hk convention", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Hong Kong Convention — what it is and what it requires", "cross_family": false } ] }, { "qid": "MUM-2026-09-3876-Q006", "text": "Refer system?", "family": "Refrigeration & AC", "subtopic": "Refer Cycle", "tid": "MUM-2026-09-3876", "tray": "new", "candidates": [ { "answer_id": "REF-CYC-007", "score": 0.5899848937988281, "sibling_score": 0.5899848937988281, "answer_score": null, "sibling_qid": "MUM-2026-04-2687-Q004", "sibling_text": "refer and ac", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "7. COP and improving refrigeration efficiency", "cross_family": false }, { "answer_id": "REF-CYC-001", "score": 0.5849862694740295, "sibling_score": 0.5849862694740295, "answer_score": null, "sibling_qid": "KOL-2016-10-1245-Q003", "sibling_text": "2 type of working cycle of refer system", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "1. The vapour-compression refrigeration cycle and refrigerant flow", "cross_family": false }, { "answer_id": "REFR-FLT-003", "score": 0.5807393789291382, "sibling_score": 0.5807393789291382, "answer_score": null, "sibling_qid": "KOL-2020-02-3326-Q004", "sibling_text": "in ref sysytm all ref has leaked out actn as 2 e", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Refrigerant leakage or loss: detect, confirm, respond, and the record-keeping", "cross_family": false } ] }, { "qid": "MUM-2026-09-3877-Q003", "text": "How do you know Unit is at TDC?", "family": "2-Stroke - Components (Other)", "subtopic": "Piston (Crown/Skirt/Inspection)", "tid": "MUM-2026-09-3877", "tray": "new", "candidates": [ { "answer_id": "ANG-ENC-003", "score": 0.4826010763645172, "sibling_score": 0.4826010763645172, "answer_score": null, "sibling_qid": "KOL-2026-05-0080-Q003", "sibling_text": "angle encoder how many how position is seen in angle encoder ans green light at tsa a when no1 unit is at tdc", "sibling_family": "", "via": "sibling", "answer_title": "Working principle: sensing crank angle, speed and direction", "cross_family": false }, { "answer_id": "DCB-OVH-004", "score": 0.4600735902786255, "sibling_score": 0.4600735902786255, "answer_score": 0.40291490107774736, "sibling_qid": "MUM-2026-05-3079-Q007", "sibling_text": "how to know piston at tdc", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Ensuring the unit is at TDC before overhaul / decarb", "cross_family": false }, { "answer_id": "AE-CRP-003", "score": 0.4170065224170685, "sibling_score": 0.4170065224170685, "answer_score": null, "sibling_qid": "KOL-2021-07-1603-Q004", "sibling_text": "how to check ae piston is on tdc", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE piston, ring and groove checks; piston material", "cross_family": true } ] }, { "qid": "MUM-2026-09-3881-Q008", "text": "What is stem?", "family": "Ship Construction & Stability", "subtopic": "DEFINITION", "tid": "MUM-2026-09-3881", "tray": "new", "candidates": [ { "answer_id": "BSBH-420-001", "score": 0.4787188768386841, "sibling_score": 0.4787188768386841, "answer_score": 0.30690568089485165, "sibling_qid": "KOL-2025-03-0919-Q005", "sibling_text": "what is stem breasthook connected to what", "sibling_family": "", "via": "sibling", "answer_title": "What is a breast hook, where is it fitted, and what does it connect at the fore end?", "cross_family": false }, { "answer_id": "DUS-P5-03", "score": 0.4520565867424011, "sibling_score": 0.4520565867424011, "answer_score": null, "sibling_qid": "CHE-2026-02-0105-Q005", "sibling_text": "transom stern explain", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Stern frame construction, cross-section and rudder-axis sketch", "cross_family": false }, { "answer_id": "STT-BRG-002", "score": 0.40588489174842834, "sibling_score": 0.40588489174842834, "answer_score": 0.2947486132383346, "sibling_qid": "MUM-2025-08-1152-Q004", "sibling_text": "tyles of stern tube what is lignum vite", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "1. Stern tube — arrangement, function, materials and types", "cross_family": true } ] }, { "qid": "MUM-2026-09-3881-Q012", "text": "What is trim?", "family": "Ship Construction & Stability", "subtopic": "DEFINITION", "tid": "MUM-2026-09-3881", "tray": "new", "candidates": [ { "answer_id": "AVR-EXC-H-002", "score": 0.49967893958091736, "sibling_score": 0.49967893958091736, "answer_score": 0.26544884145259856, "sibling_qid": "KOC-2023-01-1224-Q004", "sibling_text": "avr trimming", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Voltage trimmer — adjustment and biasing", "cross_family": true }, { "answer_id": "LCF-LCB-002", "score": 0.4892091155052185, "sibling_score": 0.4892091155052185, "answer_score": 0.2786607325077057, "sibling_qid": "MUM-2023-03-2167-Q004", "sibling_text": "what is trim shortening", "sibling_family": "", "via": "sibling", "answer_title": "How does LCF relate to trim, and why does trim change about LCF rather than LCB?", "cross_family": false }, { "answer_id": "AVR-EXC-H-001", "score": 0.46902036666870117, "sibling_score": 0.46902036666870117, "answer_score": null, "sibling_qid": "KOC-2024-02-1330-Q007", "sibling_text": "avr trimmer explain and location", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "AVR — location, components and fault checks", "cross_family": true } ] }, { "qid": "MUM-2026-09-3881-Q013", "text": "Types of trim?", "family": "Ship Construction & Stability", "subtopic": "DEFINITION", "tid": "MUM-2026-09-3881", "tray": "new", "candidates": [ { "answer_id": "AVR-EXC-H-002", "score": 0.5243798494338989, "sibling_score": 0.5243798494338989, "answer_score": null, "sibling_qid": "KOC-2023-01-1224-Q004", "sibling_text": "avr trimming", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Voltage trimmer — adjustment and biasing", "cross_family": true }, { "answer_id": "LCF-LCB-002", "score": 0.5216860771179199, "sibling_score": 0.5216860771179199, "answer_score": null, "sibling_qid": "MUM-2023-06-0109-Q007", "sibling_text": "lcf trim relationship", "sibling_family": "", "via": "sibling", "answer_title": "How does LCF relate to trim, and why does trim change about LCF rather than LCB?", "cross_family": false }, { "answer_id": "AVR-EXC-H-001", "score": 0.45716914534568787, "sibling_score": 0.45716914534568787, "answer_score": null, "sibling_qid": "KOC-2024-02-1330-Q007", "sibling_text": "avr trimmer explain and location", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "AVR — location, components and fault checks", "cross_family": true } ] }, { "qid": "MUM-2026-09-3881-Q014", "text": "What was your vessels trim?", "family": "Ship Construction & Stability", "subtopic": "DEFINITION", "tid": "MUM-2026-09-3881", "tray": "new", "candidates": [ { "answer_id": "TPC-FWA-006", "score": 0.5414019823074341, "sibling_score": 0.5414019823074341, "answer_score": 0.40185042619705197, "sibling_qid": "KOC-2024-07-0364-Q020", "sibling_text": "how u wil come to know the trim or even keel details", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Hydrostatic draught, hydrostatic particulars, trim and even keel", "cross_family": true }, { "answer_id": "DUS-P2-03", "score": 0.539042592048645, "sibling_score": 0.539042592048645, "answer_score": 0.42908442616462705, "sibling_qid": "KOL-2017-12-3108-Q007", "sibling_text": "why ship is trim by stern b4 arriving dock why not trimby forward", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Why the ship is trimmed to the approved docking plan — and why not by an assumed universal rule", "cross_family": true }, { "answer_id": "LCF-LCB-002", "score": 0.5364265441894531, "sibling_score": 0.5364265441894531, "answer_score": 0.39852527529001236, "sibling_qid": "MUM-2023-12-0153-Q005", "sibling_text": "what is lcf and how it affects trim why ship is ideally kept trim by stern", "sibling_family": "", "via": "sibling", "answer_title": "How does LCF relate to trim, and why does trim change about LCF rather than LCB?", "cross_family": false } ] }, { "qid": "MUM-2026-09-3882-Q011", "text": "Poker gauge use how to use?", "family": "Gauges & Tools", "subtopic": "Poker Gauge", "tid": "MUM-2026-09-3882", "tray": "new", "candidates": [ { "answer_id": "PROP-PN-C-002", "score": 0.6366021037101746, "sibling_score": 0.6366021037101746, "answer_score": null, "sibling_qid": "KOC-2026-05-2124-Q005", "sibling_text": "what are you measuring with poker gauge", "sibling_family": "Gauges & Tools", "via": "sibling", "answer_title": "Propeller drop — measurement and consequences", "cross_family": false }, { "answer_id": "DUS-P1-02", "score": 0.5166252255439758, "sibling_score": 0.5166252255439758, "answer_score": null, "sibling_qid": "KOL-2023-07-3625-Q004", "sibling_text": "3 special tools for drydocking poker gauge how to ensure that reading is taken at same place", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Plans, drawings and special tools kept ready for drydock — engine-department view", "cross_family": true }, { "answer_id": "RUD-DROP-001", "score": 0.47020140290260315, "sibling_score": 0.47020140290260315, "answer_score": null, "sibling_qid": "KOC-2021-05-1760-Q003", "sibling_text": "rudder drop measurement using poker gauge ans by first unit on tdc the remove rope guard drain oil by removing both top and bottom plugs remove copper gasket and put poker gauge till the matching mark on poker gauge then press the measuring pin and lock it and take readings take on both top and bottom", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": true } ] }, { "qid": "MUM-2026-09-3882-Q012", "text": "Trammel gauge?", "family": "Gauges & Tools", "subtopic": "TRAMMEL GAUGE", "tid": "MUM-2026-09-3882", "tray": "new", "candidates": [ { "answer_id": "CRK-DEFL-002", "score": 0.6101500988006592, "sibling_score": 0.6101500988006592, "answer_score": null, "sibling_qid": "KOL-2019-10-1492-Q010", "sibling_text": "trammel gauge", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Taking the readings: gauge, positions and precautions", "cross_family": true }, { "answer_id": "CSD-BF036-002", "score": 0.5981155037879944, "sibling_score": 0.5981155037879944, "answer_score": null, "sibling_qid": "KOL-2026-02-3920-Q004", "sibling_text": "trammel gauge how to take measurements 5", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "How do you take a crankshaft deflection — pre-checks, and instructing the 3/E?", "cross_family": true }, { "answer_id": "MICR-002", "score": 0.5270659923553467, "sibling_score": 0.5270659923553467, "answer_score": 0.3686341539025307, "sibling_qid": "KOL-2018-05-1373-Q012", "sibling_text": "screw gauge zero calibration", "sibling_family": "Gauges & Tools", "via": "sibling", "answer_title": "Zero setting, calibration, error check and trueness", "cross_family": false } ] }, { "qid": "MUM-2026-09-3882-Q014", "text": "Stern tube liner when to replace?", "family": "Drydock & Underwater Surveys", "subtopic": "Stern Tube / Tail Shaft", "tid": "MUM-2026-09-3882", "tray": "new", "candidates": [ { "answer_id": "STERN-P03-001", "score": 0.6177759766578674, "sibling_score": 0.6177759766578674, "answer_score": null, "sibling_qid": "KOL-2019-02-3212-Q003", "sibling_text": "crome stell liner of stern tube removal and inspection", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Chrome / shaft liner: fitting, removal, grooving & wastage, and repair options", "cross_family": false }, { "answer_id": "STERN-P03-002", "score": 0.6080483794212341, "sibling_score": 0.6080483794212341, "answer_score": 0.4123798131942749, "sibling_qid": "MUM-2026-03-2663-Q002", "sibling_text": "stern tube seal renewal in place", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Stern-tube seals: arrangement, air/lip seals, renewal/replacement and the vulcanized split-seal fitting method", "cross_family": false }, { "answer_id": "STS-P02-001", "score": 0.5950581431388855, "sibling_score": 0.5950581431388855, "answer_score": null, "sibling_qid": "KOL-2025-12-4074-Q006", "sibling_text": "stern tube wear down measurement and repair", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "STS-P02-01 - Stern tube bearing clearance and wear-down measurement", "cross_family": false } ] }, { "qid": "MUM-2026-09-3883-Q002", "text": "⁠Where bleed off oil goes?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Virtual Tappet", "tid": "MUM-2026-09-3883", "tray": "new", "candidates": [ { "answer_id": "CASC-COND-001", "score": 0.5402491688728333, "sibling_score": 0.5402491688728333, "answer_score": 0.420783594250679, "sibling_qid": "KOC-2025-07-1043-Q011", "sibling_text": "oil in cascade tank where you will c and how you will trace from where the oil has leaked", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Oil found in the cascade tank, hotwell or observation tank — actions, tracing the source, and preventing ingress", "cross_family": true }, { "answer_id": "STERN-TUBE-P04-001", "score": 0.5183886289596558, "sibling_score": 0.5183886289596558, "answer_score": null, "sibling_qid": "MUM-2025-05-2301-Q003", "sibling_text": "in stern tube everyday 30 itrs oil loosing", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Stern tube or seal leakage at sea: diagnosis and 2/E actions", "cross_family": true }, { "answer_id": "FINJ-003", "score": 0.5142422318458557, "sibling_score": 0.5142422318458557, "answer_score": null, "sibling_qid": "KOL-2018-10-1423-Q009", "sibling_text": "how recirculation at stand by engine through injector then draw the slide vv in injector where seat fitted how oil passing", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Sac volume, zero-sac and the slide-type fuel valve development", "cross_family": false } ] }, { "qid": "MUM-2026-09-3883-Q003", "text": "Fairing and cutting in exhaust valve?", "family": "2-Stroke - Exhaust, Valve & Starting Air", "subtopic": "Exhaust Valve", "tid": "MUM-2026-09-3883", "tray": "new", "candidates": [ { "answer_id": "EXV-P02-002", "score": 0.6299870610237122, "sibling_score": 0.6299870610237122, "answer_score": null, "sibling_qid": "KOL-2023-10-1758-Q005", "sibling_text": "exhaust valve seat grinding procedure clearance degree of angle cut in lid and seat", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Seat/spindle grinding, templates, clearances (G1·G2·G3·F1) and seating-angle checks", "cross_family": false }, { "answer_id": "EXHV-297-001", "score": 0.6099051833152771, "sibling_score": 0.6099051833152771, "answer_score": null, "sibling_qid": "MUM-2026-05-3219-Q005", "sibling_text": "exhaust valve construction", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve — construction, materials, type, working & latest developments", "cross_family": false }, { "answer_id": "EXHV-080-BF37-002", "score": 0.603415310382843, "sibling_score": 0.603415310382843, "answer_score": 0.45554975271224973, "sibling_qid": "MUM-2024-07-1087-Q005", "sibling_text": "exhaust valve full details", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Explain the working and construction of the exhaust valve, its mountings and internal parts.", "cross_family": false } ] }, { "qid": "MUM-2026-09-3883-Q010", "text": "⁠How will you change the Crome liner?", "family": "Drydock & Underwater Surveys", "subtopic": "Stern Tube / Tail Shaft", "tid": "MUM-2026-09-3883", "tray": "new", "candidates": [ { "answer_id": "STERN-P03-001", "score": 0.6239126920700073, "sibling_score": 0.6239126920700073, "answer_score": 0.4233647704124451, "sibling_qid": "KOL-2022-10-3579-Q002", "sibling_text": "chrome liner removal procedure and checks", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Chrome / shaft liner: fitting, removal, grooving & wastage, and repair options", "cross_family": false }, { "answer_id": "CYL-LINER-P03-006", "score": 0.5728617310523987, "sibling_score": 0.5728617310523987, "answer_score": 0.3751849770545959, "sibling_qid": "KOL-2018-01-3113-Q001", "sibling_text": "chrome liner renewal", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Fitting a new cylinder liner — checks and precautions during renewal and installation", "cross_family": true }, { "answer_id": "STERN-P03-002", "score": 0.5473306179046631, "sibling_score": 0.5473306179046631, "answer_score": null, "sibling_qid": "KOL-2022-07-1695-Q005", "sibling_text": "chrome liner arrangement in aft seal how is it fitted", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Stern-tube seals: arrangement, air/lip seals, renewal/replacement and the vulcanized split-seal fitting method", "cross_family": false } ] }, { "qid": "MUM-2026-09-3884-Q001", "text": "what time you will change over the fuel from non ECA to ECA area?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "SOx Limit", "tid": "MUM-2026-09-3884", "tray": "new", "candidates": [ { "answer_id": "SOX-LIMIT-002", "score": 0.6178812384605408, "sibling_score": 0.6178812384605408, "answer_score": 0.4652860462665558, "sibling_qid": "KOC-2023-03-0166-Q004", "sibling_text": "eca fuel requirements change over criteria", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "ECA / SECA limits, areas, and fuel changeover", "cross_family": false }, { "answer_id": "SOX-LIMIT-004", "score": 0.5136772394180298, "sibling_score": 0.5136772394180298, "answer_score": null, "sibling_qid": "KOL-2019-10-0337-Q004", "sibling_text": "new sulpur regulation if you join as a 2 e in january 2020 and your c e tells you to use old fuel with 2 5 sulphur what will your action", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Compliant fuel unavailable or off-spec — FONAR", "cross_family": false }, { "answer_id": "A6-NSEC-004", "score": 0.4745519161224365, "sibling_score": 0.4745519161224365, "answer_score": 0.40512944757938385, "sibling_qid": "MUM-2025-10-0542-Q009", "sibling_text": "which area added in eca", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SOx — limits, ECAs & compliance", "cross_family": false } ] }, { "qid": "MUM-2026-09-3884-Q002", "text": "MLC wages agreement between whom and who?", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2026-09-3884", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-010", "score": 0.6071476340293884, "sibling_score": 0.6071476340293884, "answer_score": 0.2961591988801956, "sibling_qid": "MUM-2025-11-0573-Q004", "sibling_text": "how are wages set under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "SEA, the CBA parties, and how wages are set — action on non-payment", "cross_family": false }, { "answer_id": "MLC-WRH-B-002", "score": 0.4784325957298279, "sibling_score": 0.4784325957298279, "answer_score": 0.22797806411981583, "sibling_qid": "MUM-2022-07-0027-Q005", "sibling_text": "mlc 2006 wages rest hours", "sibling_family": "MLC", "via": "sibling", "answer_title": "Work and rest hours under MLC — the criteria, the weekly limit, the intervals", "cross_family": false }, { "answer_id": "MLC-WRH-B-011", "score": 0.39818358421325684, "sibling_score": 0.39818358421325684, "answer_score": null, "sibling_qid": "CHE-2026-05-0637-Q002", "sibling_text": "mlc grievance system", "sibling_family": "MLC", "via": "sibling", "answer_title": "The on-board complaint and grievance procedure", "cross_family": false } ] }, { "qid": "MUM-2026-09-3884-Q005", "text": "How will you manage rest hours if sailing from one port to another 1 day sailing ?", "family": "MLC", "subtopic": "MLC / DMLC / Work-Rest", "tid": "MUM-2026-09-3884", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-004", "score": 0.6413825154304504, "sibling_score": 0.6413825154304504, "answer_score": null, "sibling_qid": "MUM-2026-09-3875-Q007", "sibling_text": "young seafarer working and rest hour", "sibling_family": "MLC", "via": "sibling", "answer_title": "Young seafarers — minimum age, night work, and what the 2/E must ensure", "cross_family": false }, { "answer_id": "MLC-WRH-B-003", "score": 0.6220226883888245, "sibling_score": 0.6220226883888245, "answer_score": 0.4511771500110626, "sibling_qid": "KOC-2024-04-0333-Q011", "sibling_text": "second engineer splits your rest hours into 6 2 2 is that ok as per stcw", "sibling_family": "MLC", "via": "sibling", "answer_title": "STCW versus MLC rest hours — the Manila amendments, and is a 6-2-2 split acceptable", "cross_family": false }, { "answer_id": "MLC-WRH-B-002", "score": 0.605252742767334, "sibling_score": 0.605252742767334, "answer_score": 0.39847286343574523, "sibling_qid": "KOL-2017-01-0053-Q005", "sibling_text": "rest hours", "sibling_family": "MLC", "via": "sibling", "answer_title": "Work and rest hours under MLC — the criteria, the weekly limit, the intervals", "cross_family": false } ] }, { "qid": "MUM-2026-09-3885-Q001", "text": "Type of ship? type of engine? company name? attempt status?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-09-3885", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.7428657412528992, "sibling_score": 0.7428657412528992, "answer_score": null, "sibling_qid": "MUM-2026-05-3248-Q001", "sibling_text": "introduction sea time company pre sea ship type engine type me", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.7193726897239685, "sibling_score": 0.7193726897239685, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q001", "sibling_text": "type of ship sailed and engines details", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.7162752747535706, "sibling_score": 0.7162752747535706, "answer_score": null, "sibling_qid": "MUM-2026-09-3912-Q001", "sibling_text": "company name type of ships native place", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2026-09-3885-Q002", "text": "Speciality of ME-C?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "MC-C vs MEB Engine", "tid": "MUM-2026-09-3885", "tray": "new", "candidates": [ { "answer_id": "BUNK-SAMP-003", "score": 0.4604625105857849, "sibling_score": 0.4604625105857849, "answer_score": null, "sibling_qid": "KOC-2025-02-2060-Q021", "sibling_text": "specialty", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "The sampling connection / flange and drip-sampler arrangement", "cross_family": true }, { "answer_id": "MEB-MEC-P03-001", "score": 0.458726167678833, "sibling_score": 0.458726167678833, "answer_score": 0.31275245249271394, "sibling_qid": "CHE-2026-05-0636-Q005", "sibling_text": "main diff between me c and me b", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "ME-B vs ME-C — the core difference", "cross_family": false }, { "answer_id": "EGTP-P02-005", "score": 0.4294694662094116, "sibling_score": 0.4294694662094116, "answer_score": null, "sibling_qid": "MUM-2026-09-3978-Q001", "sibling_text": "mc mcc me b and me c difference", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "MC / MC-C / ME-C and Electronically Controlled Engines", "cross_family": false } ] }, { "qid": "MUM-2026-09-3885-Q007", "text": "Why lift D/4", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2026-09-3885", "tray": "new", "candidates": [ { "answer_id": "BWM-D1D2-P04-002", "score": 0.41522517800331116, "sibling_score": 0.41522517800331116, "answer_score": null, "sibling_qid": "KOC-2022-01-0048-Q013", "sibling_text": "bwms code explain d1 d2 d4", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "D-2 standard and the BWMS Code (ex-G8) — type approval of treatment systems", "cross_family": true }, { "answer_id": "ACCT-583-B-FINAL-1-003", "score": 0.3700605034828186, "sibling_score": 0.3700605034828186, "answer_score": null, "sibling_qid": "KOL-2017-02-1842-Q002", "sibling_text": "accumulation of pr test wen it shud b carried blow down and hw it is controlled constructional difference in high lift n improved high lift", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "The accumulation test and the safety valve — required lift, how lift and capacity are verified, and why accumulation must stay inside the limit", "cross_family": false }, { "answer_id": "BWM-D1D2-P02-002", "score": 0.35617971420288086, "sibling_score": 0.35617971420288086, "answer_score": null, "sibling_qid": "KOC-2022-09-0092-Q004", "sibling_text": "ballast water d1 d2 d4 explain", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "BWM Section D standards — D-1 to D-5 overview and how they differ", "cross_family": true } ] }, { "qid": "MUM-2026-09-3887-Q002", "text": "Pulse jet lubrication how it reduce SLOC?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Alpha Lubricator", "tid": "MUM-2026-09-3887", "tray": "new", "candidates": [ { "answer_id": "CYL-LUB-A-002", "score": 0.6062431931495667, "sibling_score": 0.6062431931495667, "answer_score": null, "sibling_qid": "MUM-2026-09-3887-Q003", "sibling_text": "sloc of your ship compare with sloc in case of pulse jet lubrication", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Feed-rate control — quantity, timing and load/rpm-dependent dosing", "cross_family": false }, { "answer_id": "CYL-LUB-A-004", "score": 0.5671870708465576, "sibling_score": 0.5671870708465576, "answer_score": null, "sibling_qid": "MUM-2026-09-3887-Q001", "sibling_text": "pulse jet lubrication", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Types of cylinder lubrication system", "cross_family": false }, { "answer_id": "ALPHA-LUB-B-004", "score": 0.5098385214805603, "sibling_score": 0.5098385214805603, "answer_score": null, "sibling_qid": "KOL-2019-03-1446-Q001", "sibling_text": "advantages of alpha lubrication how it reduce sloc and cyl wear rate", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Alpha lubricator — feed-rate, timing, quantity and SLOC/SCOC calculation", "cross_family": false } ] }, { "qid": "MUM-2026-09-3887-Q004", "text": "What test are done in test bed before going for sea trails?", "family": "NDT & Material Testing", "subtopic": "NDT Methods (MPI/DPT/UT/RT)", "tid": "MUM-2026-09-3887", "tray": "new", "candidates": [ { "answer_id": "DUS-P2-02", "score": 0.5900760293006897, "sibling_score": 0.5900760293006897, "answer_score": null, "sibling_qid": "KOC-2022-08-0973-Q009", "sibling_text": "sea trials to check other than m e", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Sea-trial checks after drydock — items not related to the main engine", "cross_family": true }, { "answer_id": "STEER-055-A-005", "score": 0.5733099579811096, "sibling_score": 0.5733099579811096, "answer_score": 0.4630090057849884, "sibling_qid": "KOC-2023-12-0258-Q001", "sibling_text": "steering tests before flooding in dry dock", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Checks, clearances, trials and steering-room duties", "cross_family": true }, { "answer_id": "RES-PROP-P03-004", "score": 0.5578116178512573, "sibling_score": 0.5578116178512573, "answer_score": null, "sibling_qid": "KOC-2025-12-0740-Q004", "sibling_text": "navigational seatrials before ship is handed over", "sibling_family": "", "via": "sibling", "answer_title": "4. Sea trials before handover and ship-speed verification", "cross_family": false } ] }, { "qid": "MUM-2026-09-3887-Q007", "text": "Why luffa sponge is placed inside the feed water line of boiler?", "family": "Boilers - Operations & Firing", "subtopic": "Boiler Water Circulation", "tid": "MUM-2026-09-3887", "tray": "new", "candidates": [ { "answer_id": "DP-TX-003", "score": 0.5308080315589905, "sibling_score": 0.5308080315589905, "answer_score": null, "sibling_qid": "KOL-2020-07-1539-Q003", "sibling_text": "boiler feed water control explain", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler feed-water control with the DP cell — single, two and three-element", "cross_family": false }, { "answer_id": "PAL-620-001", "score": 0.5271185636520386, "sibling_score": 0.5271185636520386, "answer_score": null, "sibling_qid": "MUM-2026-02-2545-Q001", "sibling_text": "boiler water circulating pump where to take suc and where to deliver", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "How do you check and set the alignment between a pump and its motor? Horizontal centrifugal pump — where the dial gauge goes and what values apply.", "cross_family": false }, { "answer_id": "BLR-TUBE-P02-002", "score": 0.5267056226730347, "sibling_score": 0.5267056226730347, "answer_score": null, "sibling_qid": "KOL-2018-06-3158-Q003", "sibling_text": "plugging of boiler tube", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Plugging a leaking boiler tube (temporary arrest)", "cross_family": true } ] }, { "qid": "MUM-2026-09-3887-Q008", "text": "Difference between SCR and scrubber?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Thyristor / SCR", "tid": "MUM-2026-09-3887", "tray": "new", "candidates": [ { "answer_id": "SCR-306-A-004", "score": 0.5760279297828674, "sibling_score": 0.5760279297828674, "answer_score": null, "sibling_qid": "KOL-2022-09-2610-Q006", "sibling_text": "scr uses", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Applications and onboard uses", "cross_family": false }, { "answer_id": "SCR-306-A-001", "score": 0.5425394177436829, "sibling_score": 0.5425394177436829, "answer_score": 0.3107036530971527, "sibling_qid": "MUM-2024-04-2762-Q006", "sibling_text": "explain scr", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What an SCR is and how it works", "cross_family": false }, { "answer_id": "SCR-306-B-002", "score": 0.5185374617576599, "sibling_score": 0.5185374617576599, "answer_score": null, "sibling_qid": "MUM-2026-02-2571-Q003", "sibling_text": "maintenance on the scr", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Testing and maintenance of an SCR / thyristor", "cross_family": false } ] }, { "qid": "MUM-2026-09-3887-Q009", "text": "Give reaction happening inside SCR?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Thyristor / SCR", "tid": "MUM-2026-09-3887", "tray": "new", "candidates": [ { "answer_id": "AV6-P03-02", "score": 0.5998314619064331, "sibling_score": 0.5998314619064331, "answer_score": 0.28748877346515656, "sibling_qid": "MUM-2026-09-3912-Q007", "sibling_text": "scr and its chemical reaction gave all answers", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SCR for marine NOx control — meaning, working principle, chemistry and system components", "cross_family": true }, { "answer_id": "SCR-306-A-001", "score": 0.5541295409202576, "sibling_score": 0.5541295409202576, "answer_score": 0.2863434642553329, "sibling_qid": "CHE-2026-02-0479-Q012", "sibling_text": "scr working", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What an SCR is and how it works", "cross_family": false }, { "answer_id": "SCR-306-A-003", "score": 0.5366997122764587, "sibling_score": 0.5366997122764587, "answer_score": 0.2867409735918045, "sibling_qid": "KOC-2025-01-1468-Q007", "sibling_text": "inputs to scr", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Gate signal, triggering and firing-angle control", "cross_family": false } ] }, { "qid": "MUM-2026-09-3887-Q010", "text": "WHAT IS A static mixer mesh?", "family": "Electrical - Generator & Alternator", "subtopic": "AVR / Excitation", "tid": "MUM-2026-09-3887", "tray": "new", "candidates": [ { "answer_id": "AVR-EXC-D-001", "score": 0.462554007768631, "sibling_score": 0.462554007768631, "answer_score": 0.28478691577911375, "sibling_qid": "KOC-2025-01-1481-Q007", "sibling_text": "explain only static avr", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Static AVR / static excitation — types of AVR, and how the static system works", "cross_family": false }, { "answer_id": "AVR-EXC-E-001", "score": 0.45628392696380615, "sibling_score": 0.45628392696380615, "answer_score": 0.2844214767217636, "sibling_qid": "KOL-2018-03-2181-Q005", "sibling_text": "static avr working", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "How does a static AVR / static excitation system work? (draw & explain)", "cross_family": false }, { "answer_id": "STAB-SD-C-002", "score": 0.28745396733283995, "sibling_score": null, "answer_score": 0.28745396733283995, "sibling_qid": "", "sibling_text": "static stability what it is and what it quantifies", "sibling_family": "", "via": "answer_title", "answer_title": "Static stability — what it is and what it quantifies", "cross_family": false } ] }, { "qid": "MUM-2026-09-3888-Q004", "text": "Crack on a weld on shell plating?", "family": "SOLAS", "subtopic": "Shell Plating / Strakes", "tid": "MUM-2026-09-3888", "tray": "new", "candidates": [ { "answer_id": "PW-327-003", "score": 0.6238125562667847, "sibling_score": 0.6238125562667847, "answer_score": null, "sibling_qid": "MUM-2022-09-2145-Q010", "sibling_text": "if in drydock crack on shell plate welding action if no class surveyor available", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "3. Shell / deck plate repair and renewal in dry dock (class context)", "cross_family": true }, { "answer_id": "HULL-DD-001", "score": 0.622779905796051, "sibling_score": 0.622779905796051, "answer_score": 0.5028117686510086, "sibling_qid": "KOL-2022-09-3569-Q004", "sibling_text": "weld cracke in hull what will do", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "1. Hull plate / shell-weld crack repair in drydock", "cross_family": true }, { "answer_id": "NDT-METH-P03-002", "score": 0.6163812875747681, "sibling_score": 0.6163812875747681, "answer_score": 0.4590535700321197, "sibling_qid": "KOC-2023-07-0925-Q018", "sibling_text": "your ship side shell plating cropped and welded how you will check for that there is no crack what all you checkes", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Component crack testing — weld, hull plate, tailshaft, crankshaft, piston, serrations", "cross_family": true } ] }, { "qid": "MUM-2026-09-3888-Q006", "text": "How to do bedding -in of thick shell bearing?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Main Bearing", "tid": "MUM-2026-09-3888", "tray": "new", "candidates": [ { "answer_id": "WMAT-170-005", "score": 0.6302620768547058, "sibling_score": 0.6302620768547058, "answer_score": 0.5376125305891036, "sibling_qid": "KOL-2024-03-1775-Q009", "sibling_text": "procedure of bedding of bearing all", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bearing bedding and seating / contact assessment", "cross_family": false }, { "answer_id": "BRG-NOM-005", "score": 0.6271594762802124, "sibling_score": 0.6271594762802124, "answer_score": null, "sibling_qid": "KOL-2026-02-3917-Q007", "sibling_text": "thick shell bearing new bearing installed but its not fitting reasons and how will you rectify", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bush, Insert, End-Loaded and Undersize Bearings — and Ordering Data", "cross_family": false }, { "answer_id": "BEB-C-003", "score": 0.625653088092804, "sibling_score": 0.625653088092804, "answer_score": null, "sibling_qid": "KOL-2019-07-1464-Q003", "sibling_text": "bedding of bottom end bearing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bedding / contact check of a bottom end bearing — and the use of blue", "cross_family": false } ] }, { "qid": "MUM-2026-09-3889-Q001", "text": "What is ITLOS?", "family": "Other Conventions", "subtopic": "ITLOS", "tid": "MUM-2026-09-3889", "tray": "new", "candidates": [ { "answer_id": "LO-TEST-P01-001", "score": 0.29441037774086, "sibling_score": 0.29441037774086, "answer_score": null, "sibling_qid": "KOC-2026-05-0009-Q011", "sibling_text": "onboard lo tests explain", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Onboard lube-oil tests and the viscosity test", "cross_family": true }, { "answer_id": "OWS-ORB-006", "score": 0.28527629375457764, "sibling_score": 0.28527629375457764, "answer_score": null, "sibling_qid": "MUM-2026-03-0808-Q002", "sibling_text": "orb entry for lo", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "6. Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": true }, { "answer_id": "UNCLOS-002", "score": 0.28205955028533936, "sibling_score": 0.28205955028533936, "answer_score": null, "sibling_qid": "KOL-2022-09-4013-Q004", "sibling_text": "unclos and it s treaties", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What treaties come under UNCLOS?", "cross_family": false } ] }, { "qid": "MUM-2026-09-3889-Q005", "text": "What is a program carried out recently by Indian gov for gender promotion?", "family": "Risk & Safety Management", "subtopic": "Risk Assessment / Management", "tid": "MUM-2026-09-3889", "tray": "new", "candidates": [ { "answer_id": "ESP-A-001", "score": 0.3800615966320038, "sibling_score": 0.3800615966320038, "answer_score": null, "sibling_qid": "KOC-2025-11-0713-Q006", "sibling_text": "enhanced survry programme", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the Enhanced Survey Programme (ESP), and what is its purpose?", "cross_family": true }, { "answer_id": "HKC-IHM-A-002", "score": 0.3564631938934326, "sibling_score": 0.3564631938934326, "answer_score": null, "sibling_qid": "MUM-2026-03-0843-Q007", "sibling_text": "which convention recently ratified by india", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "HKC status, entry into force and recent references", "cross_family": true }, { "answer_id": "ETP-344-P01-002", "score": 0.3336998224258423, "sibling_score": 0.3336998224258423, "answer_score": null, "sibling_qid": "KOL-2023-08-1754-Q001", "sibling_text": "power up programme", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Load program / load-up program — what and why", "cross_family": true } ] }, { "qid": "MUM-2026-09-3889-Q006", "text": "New amendments in ISM?", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "MUM-2026-09-3889", "tray": "review", "candidates": [ { "answer_id": "BC-IMSBC-005", "score": 0.6592777371406555, "sibling_score": 0.6592777371406555, "answer_score": 0.35854321271181105, "sibling_qid": "MUM-2026-06-3603-Q001", "sibling_text": "latest amendments in ism and when", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "5. Latest IMSBC Code amendments", "cross_family": false }, { "answer_id": "COT-P02-10", "score": 0.5828735828399658, "sibling_score": 0.5828735828399658, "answer_score": null, "sibling_qid": "KOC-2023-10-0221-Q001", "sibling_text": "ig new amendments", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "State and explain the latest statutory amendments affecting tanker inert-gas systems, including applicability and practical changes on board.", "cross_family": true }, { "answer_id": "IMODCS-004", "score": 0.5296951532363892, "sibling_score": 0.5296951532363892, "answer_score": null, "sibling_qid": "KOC-2025-07-0620-Q012", "sibling_text": "new draft ammendments in imodcs", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is the latest amendment to MARPOL Annex VI affecting the IMO DCS?", "cross_family": true } ] }, { "qid": "MUM-2026-09-3890-Q001", "text": "Regulation 2 ,4 of MLC?", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2026-09-3890", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-004", "score": 0.42433542013168335, "sibling_score": 0.42433542013168335, "answer_score": null, "sibling_qid": "KOL-2021-07-0526-Q006", "sibling_text": "4 mlc 2006 rest hours minimum age required to workonboard minimum age for night watch", "sibling_family": "MLC", "via": "sibling", "answer_title": "Young seafarers — minimum age, night work, and what the 2/E must ensure", "cross_family": false }, { "answer_id": "MLC-WRH-B-010", "score": 0.4226037859916687, "sibling_score": 0.4226037859916687, "answer_score": null, "sibling_qid": "MUM-2025-11-0573-Q004", "sibling_text": "how are wages set under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "SEA, the CBA parties, and how wages are set — action on non-payment", "cross_family": false }, { "answer_id": "MLC-WRH-B-007", "score": 0.42043155431747437, "sibling_score": 0.42043155431747437, "answer_score": null, "sibling_qid": "MUM-2026-01-0701-Q002", "sibling_text": "detainable deficiency of mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false } ] }, { "qid": "MUM-2026-09-3890-Q002", "text": "LRIT?", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "MUM-2026-09-3890", "tray": "new", "candidates": [ { "answer_id": "EPIRB-SART-001", "score": 0.47189661860466003, "sibling_score": 0.47189661860466003, "answer_score": null, "sibling_qid": "KOL-2017-09-0112-Q004", "sibling_text": "lrit vdr epirb sart mob marker", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What is the difference between EPIRB and SART? Give the function, construction, use and operation of each.", "cross_family": true }, { "answer_id": "TONN-007", "score": 0.43905043601989746, "sibling_score": 0.43905043601989746, "answer_score": null, "sibling_qid": "MUM-2026-06-3480-Q005", "sibling_text": "grt nrt", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Differentiate GT, NT, GRT/NRT, DWT, Lightweight and Displacement", "cross_family": true }, { "answer_id": "LCF-LCB-002", "score": 0.41571885347366333, "sibling_score": 0.41571885347366333, "answer_score": null, "sibling_qid": "MUM-2023-06-0109-Q007", "sibling_text": "lcf trim relationship", "sibling_family": "", "via": "sibling", "answer_title": "How does LCF relate to trim, and why does trim change about LCF rather than LCB?", "cross_family": false } ] }, { "qid": "MUM-2026-09-3891-Q005", "text": "jack up method detail?", "family": "Auxiliary Equipment", "subtopic": "Winch Brake Rendering Test", "tid": "MUM-2026-09-3891", "tray": "new", "candidates": [ { "answer_id": "MAIN-BRG-D-004", "score": 0.5535305738449097, "sibling_score": 0.5535305738449097, "answer_score": null, "sibling_qid": "CHE-2025-08-0424-Q002", "sibling_text": "bearing jackup procedure", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main bearing overhaul — jack-up, clearance check and tightening", "cross_family": true }, { "answer_id": "WBRT-002", "score": 0.5444548726081848, "sibling_score": 0.5444548726081848, "answer_score": null, "sibling_qid": "KOL-2024-03-3680-Q002", "sibling_text": "winch break test position of jack", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Why 60%, and how the jack load and pressure are set", "cross_family": false }, { "answer_id": "BEB-B-002", "score": 0.5338796377182007, "sibling_score": 0.5338796377182007, "answer_score": null, "sibling_qid": "KOL-2018-09-3190-Q004", "sibling_text": "jack up test", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bottom End Bearing — Clearance Measurement", "cross_family": true } ] }, { "qid": "MUM-2026-09-3891-Q006", "text": "Influence no?", "family": "2-Stroke", "subtopic": "", "tid": "MUM-2026-09-3891", "tray": "new", "candidates": [ { "answer_id": "DUS-P5-04", "score": 0.5671969652175903, "sibling_score": 0.5671969652175903, "answer_score": null, "sibling_qid": "MUM-2026-05-3268-Q014", "sibling_text": "influence number", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Intermediate shaft — overhaul, oil supply to the bearing, and the influence number", "cross_family": true }, { "answer_id": "SHAFT-ALN-002", "score": 0.5664042234420776, "sibling_score": 0.5664042234420776, "answer_score": null, "sibling_qid": "KOC-2025-10-1947-Q003", "sibling_text": "influence number", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Fair-curve alignment, influence numbers and propeller overhang", "cross_family": true }, { "answer_id": "AV6-P02-01", "score": 0.5237035751342773, "sibling_score": 0.5237035751342773, "answer_score": null, "sibling_qid": "KOC-2021-10-0028-Q006", "sibling_text": "nox effects", "sibling_family": "MARPOL - 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Gas Carriers", "via": "sibling", "answer_title": "Membrane tanks — NO96 vs Mark III, composition, insulation material and PU-foam generation", "cross_family": true } ] }, { "qid": "MUM-2026-09-3892-Q001", "text": "Type of ship?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-09-3892", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8361091613769531, "sibling_score": 0.8361091613769531, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8013883233070374, "sibling_score": 0.8013883233070374, "answer_score": 0.5470469683408737, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8000956177711487, "sibling_score": 0.8000956177711487, "answer_score": 0.5211817562580109, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2026-09-3892-Q004", "text": "Pearlitic cast iron percentage?", "family": "NDT & Material Testing", "subtopic": "Material Properties", "tid": "MUM-2026-09-3892", "tray": "new", "candidates": [ { "answer_id": "ICD-065-001", "score": 0.6260343790054321, "sibling_score": 0.6260343790054321, "answer_score": null, "sibling_qid": "MUM-2026-06-3356-Q001", "sibling_text": "iron carbide diagram draw percentage of carbon in ferrite austenite perlite etc etc", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Draw and explain the iron-carbon diagram in full detail", "cross_family": false }, { "answer_id": "STEEL-GR-002", "score": 0.6026106476783752, "sibling_score": 0.6026106476783752, "answer_score": null, "sibling_qid": "KOC-2022-01-1777-Q009", "sibling_text": "mild steel carbon percentage", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Mild steel — composition, use, and how it differs from cast iron", "cross_family": false }, { "answer_id": "ICD-065-003", "score": 0.5940285921096802, "sibling_score": 0.5940285921096802, "answer_score": 0.4437421143054962, "sibling_qid": "MUM-2026-02-1255-Q004", "sibling_text": "percentage of c in cementite", "sibling_family": "Materials & Metallurgy", "via": "sibling", "answer_title": "What percentage of carbon is in cementite?", "cross_family": true } ] }, { "qid": "MUM-2026-09-3892-Q011", "text": "Main engine on bed, test load procedure what we checked?", "family": "2-Stroke - 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Combustion, Power & Performance", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": true } ] }, { "qid": "MUM-2026-09-3893-Q005", "text": "Precaution we take to prevent fatigue? ", "family": "NDT & Material Testing", "subtopic": "Creep / Fatigue Failure", "tid": "MUM-2026-09-3893", "tray": "new", "candidates": [ { "answer_id": "CFF-P02-001", "score": 0.5888221859931946, "sibling_score": 0.5888221859931946, "answer_score": null, "sibling_qid": "MUM-2026-06-3353-Q012", "sibling_text": "fatigue where it happens", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Fatigue failure — what it is and where it occurs", "cross_family": false }, { "answer_id": "CRB-010", "score": 0.5681028962135315, "sibling_score": 0.5681028962135315, "answer_score": 0.33875769972801206, "sibling_qid": "MUM-2025-09-2846-Q015", "sibling_text": "to avoid fatigue failure in conrod what precations we are taking", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How is the connecting rod designed to cope with fatigue, and what precautions avoid fatigue failure?", "cross_family": true }, { "answer_id": "MLC-WRH-B-005", "score": 0.38806818574666974, "sibling_score": null, "answer_score": 0.38806818574666974, "sibling_qid": "", "sibling_text": "repeated rest hour violations your action as second engineer and who may permit the work repeated violation is a manning or work organisation failure not an individual failing treat it as an ism non conformity and raise it through the sms establish the facts first cross check rest records against deck log movement book drill register cargo and bunkering times", "sibling_family": "", "via": "answer_title", "answer_title": "Repeated rest-hour violations — your action as Second Engineer, and who may permit the work", "cross_family": false } ] }, { "qid": "MUM-2026-09-3894-Q001", "text": "Type of Ship?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-09-3894", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8361091613769531, "sibling_score": 0.8361091613769531, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8013883233070374, "sibling_score": 0.8013883233070374, "answer_score": 0.5470469176769256, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8000956177711487, "sibling_score": 0.8000956177711487, "answer_score": 0.5211817562580109, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2026-09-3894-Q009", "text": "Certified height for your vessel?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-09-3894", "tray": "new", "candidates": [ { "answer_id": "LB-D-005", "score": 0.579176664352417, "sibling_score": 0.579176664352417, "answer_score": null, "sibling_qid": "KOL-2026-04-1214-Q006", "sibling_text": "height certificate for freefall lifeboat", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Free-fall lifeboat — safety arrangements / safeties", "cross_family": true }, { "answer_id": "HATCH-COAM-004", "score": 0.5714033246040344, "sibling_score": 0.5714033246040344, "answer_score": 0.4831397175788879, "sibling_qid": "CHE-2025-08-0012-Q008", "sibling_text": "container hatchcoaming height", "sibling_family": "", "via": "sibling", "answer_title": "What are the height and regulatory requirements for hatch coamings (container ship, bulk carrier, tanker)?", "cross_family": false }, { "answer_id": "GM-META-003", "score": 0.5661839246749878, "sibling_score": 0.5661839246749878, "answer_score": null, "sibling_qid": "MUM-2026-04-0925-Q003", "sibling_text": "metacentric height value of gm of your ship", "sibling_family": "", "via": "sibling", "answer_title": "Finding the initial GM on board", "cross_family": false } ] }, { "qid": "MUM-2026-09-3894-Q012", "text": "Primary and Secondary barrier material and how to check if any leak is happening?", "family": "Cargo Ops - Gas Carriers", "subtopic": "Cargo Tank Construction", "tid": "MUM-2026-09-3894", "tray": "new", "candidates": [ { "answer_id": "GC-TANK-003", "score": 0.500593364238739, "sibling_score": 0.500593364238739, "answer_score": 0.4084940403699875, "sibling_qid": "KOL-2024-08-0852-Q002", "sibling_text": "primary and secondary barrier of cargo tank", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "What is a Type B independent tank and the purpose of a partial secondary barrier?", "cross_family": false }, { "answer_id": "IGC-GAS-016", "score": 0.5000777244567871, "sibling_score": 0.5000777244567871, "answer_score": 0.40787472426891325, "sibling_qid": "KOL-2026-09-4311-Q001", "sibling_text": "which type of ship lng okay semi ref or fully fully if secondary barrier leaks as 2e what things u would do how to check trueness of alarms what all u will check what u will do first and all things i cud nt answer fully", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Emergency action — primary and secondary barrier breach", "cross_family": false }, { "answer_id": "SGRS-328-004", "score": 0.48446959257125854, "sibling_score": 0.48446959257125854, "answer_score": null, "sibling_qid": "MUM-2025-11-2474-Q005", "sibling_text": "how do u check seal leakage", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "How do you know or check that a steering gear seal is leaking?", "cross_family": true } ] }, { "qid": "MUM-2026-09-3894-Q018", "text": "Fixed CO₂ System – where used & Hypermist where used?", "family": "SOLAS - Fire Safety", "subtopic": "Sprinkler / Water Mist / Hi-Fog", "tid": "MUM-2026-09-3894", "tray": "new", "candidates": [ { "answer_id": "FIRE-P01-01", "score": 0.5907660126686096, "sibling_score": 0.5907660126686096, "answer_score": 0.3222160220146179, "sibling_qid": "KOL-2019-08-0314-Q003", "sibling_text": "hypermist system function", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist / water-mist system — draw and explain the machinery-space arrangement and normal working", "cross_family": false }, { "answer_id": "FIRE-P02-04", "score": 0.5875295400619507, "sibling_score": 0.5875295400619507, "answer_score": 0.3621690794825554, "sibling_qid": "MUM-2025-09-0484-Q010", "sibling_text": "when co2 system is there why is hypermist system also required", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist vs sprinkler and CO₂ — comparison and coexistence", "cross_family": false }, { "answer_id": "FIRE-P03-03", "score": 0.3209232807159424, "sibling_score": null, "answer_score": 0.3209232807159424, "sibling_qid": "", "sibling_text": "co as a firefighting medium limitations and the statutory position on steam governing instruments solas ii 2 reg 10 and fss code chapter 5 msc 98 73 as amended co extinguishes primarily by o displacement minimal cooling re ignition risk on hot surfaces if the space is opened prematurely", "sibling_family": "", "via": "answer_title", "answer_title": "CO₂ as a firefighting medium — limitations, and the statutory position on steam", "cross_family": false } ] }, { "qid": "MUM-2026-09-3894-Q019", "text": "EEBD – Dates (EIF) and ship build date", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-09-3894", "tray": "new", "candidates": [ { "answer_id": "EEDI-A-003", "score": 0.46437501907348633, "sibling_score": 0.46437501907348633, "answer_score": null, "sibling_qid": "KOC-2023-02-0147-Q006", "sibling_text": "eedi for which ships cii for which ships when it s coming into effect", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Which ships EEDI applies to — scope, exemptions and amendments", "cross_family": true }, { "answer_id": "EEDI-C-001", "score": 0.44786036014556885, "sibling_score": 0.44786036014556885, "answer_score": null, "sibling_qid": "KOL-2022-05-0640-Q003", "sibling_text": "eexi and eedi latest developments what is required by a particular ship regarding the same and cii", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "EEDI versus EEXI — what is the difference?", "cross_family": true }, { "answer_id": "EEDI-A-004", "score": 0.44478660821914673, "sibling_score": 0.44478660821914673, "answer_score": null, "sibling_qid": "KOL-2019-08-0310-Q006", "sibling_text": "eedi latest technology design in ship", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Salient features and design measures affecting EEDI", "cross_family": true } ] }, { "qid": "MUM-2026-09-3895-Q004", "text": "Piston burning?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Scavenging / Scavenge Fire", "tid": "MUM-2026-09-3895", "tray": "new", "candidates": [ { "answer_id": "PST-CSI-BF-007", "score": 0.6193408966064453, "sibling_score": 0.6193408966064453, "answer_score": 0.43751662969589233, "sibling_qid": "MUM-2026-03-2951-Q007", "sibling_text": "checks on piston", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "The piston is out — what checks do you carry out on it?", "cross_family": true }, { "answer_id": "PIST-CSI-C-001", "score": 0.6186468601226807, "sibling_score": 0.6186468601226807, "answer_score": 0.4922913998365402, "sibling_qid": "KOL-2024-11-1956-Q003", "sibling_text": "piston crown burning reason", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston crown damage — pitting, burning, cracks and reconditioning", "cross_family": true }, { "answer_id": "ETP-344-P03-006", "score": 0.6074222922325134, "sibling_score": 0.6074222922325134, "answer_score": null, "sibling_qid": "KOC-2025-07-1925-Q015", "sibling_text": "after burning reasons need more", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Afterburning — causes, indications, remedies", "cross_family": false } ] }, { "qid": "MUM-2026-09-3896-Q005", "text": "How does N2 gen function?", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator / Generator", "tid": "MUM-2026-09-3896", "tray": "new", "candidates": [ { "answer_id": "COT-P02-09", "score": 0.5877841711044312, "sibling_score": 0.5877841711044312, "answer_score": 0.21169479787349701, "sibling_qid": "MUM-2025-11-0574-Q004", "sibling_text": "n2 gen working", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Explain why nitrogen is used on chemical tankers and describe the nitrogen generator, product-gas composition, oxygen removal and principal alarms/trips.", "cross_family": true }, { "answer_id": "LPG-LNG-006", "score": 0.5506435632705688, "sibling_score": 0.5506435632705688, "answer_score": 0.2133433774113655, "sibling_qid": "MUM-2026-05-3182-Q007", "sibling_text": "n2 generator working", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Nitrogen generator, dry IG, and padding on gas carriers", "cross_family": true }, { "answer_id": "ALT-GEN-P02-001", "score": 0.40000513195991516, "sibling_score": 0.40000513195991516, "answer_score": null, "sibling_qid": "KOC-2022-12-0121-Q002", "sibling_text": "generator spec", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Alternator/generator specifications, ratings and ship electrical supply details", "cross_family": false } ] }, { "qid": "MUM-2026-09-3896-Q008", "text": "Hoop stress?", "family": "NDT & Material Testing", "subtopic": "", "tid": "MUM-2026-09-3896", "tray": "new", "candidates": [ { "answer_id": "STRSTR-298-009", "score": 0.5753223299980164, "sibling_score": 0.5753223299980164, "answer_score": 0.3694410532712936, "sibling_qid": "KOL-2021-04-1584-Q003", "sibling_text": "hook stress", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "What is Hooke’s law in stress-strain behaviour?", "cross_family": false }, { "answer_id": "STRSTR-298-003", "score": 0.548447847366333, "sibling_score": 0.548447847366333, "answer_score": null, "sibling_qid": "KOL-2025-03-1801-Q003", "sibling_text": "tensile stress why carried out information we get", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "How is a tensile test carried out, and what do UTM, UTS and the stress-strain curve give you?", "cross_family": false }, { "answer_id": "CREEP-FAT-P01-001", "score": 0.542336106300354, "sibling_score": 0.542336106300354, "answer_score": null, "sibling_qid": "KOC-2024-12-1021-Q015", "sibling_text": "creep stress", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "What is creep, and where does it occur in a marine engine?", "cross_family": false } ] }, { "qid": "MUM-2026-09-3896-Q009", "text": "How bedplates are constructed?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "MUM-2026-09-3896", "tray": "new", "candidates": [ { "answer_id": "FWFB-P02-007", "score": 0.5872358083724976, "sibling_score": 0.5872358083724976, "answer_score": null, "sibling_qid": "MUM-2026-05-3306-Q002", "sibling_text": "bedplate material types construction transverse longitudinal 3 girder etc material", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Transverse and longitudinal girders: arrangement and purpose", "cross_family": true }, { "answer_id": "BED-CHOCK-001", "score": 0.49571508169174194, "sibling_score": 0.49571508169174194, "answer_score": 0.386723792552948, "sibling_qid": "MUM-2023-08-0952-Q004", "sibling_text": "how to fix bed plate on ship", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "How is the main-engine bedplate fixed to the ship's structure?", "cross_family": true }, { "answer_id": "CHK-RM-001", "score": 0.4933292865753174, "sibling_score": 0.4933292865753174, "answer_score": 0.41186139434576036, "sibling_qid": "CHE-2026-04-0140-Q001S4", "sibling_text": "how bedplate connected to ship structure", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What are chocks? Function, types, where fitted and how placed — which have the biggest area, and how does the bedplate connect to the hull?", "cross_family": true } ] }, { "qid": "MUM-2026-09-3897-Q001", "text": "Pre sea from where did? How many written cleared? Total attempts", "family": "Status & Introduction", "subtopic": "Exam Status", "tid": "MUM-2026-09-3897", "tray": "new", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.4931897521018982, "sibling_score": 0.4931897521018982, "answer_score": null, "sibling_qid": "MUM-2026-03-0866-Q001", "sibling_text": "coc attempt internal sirish sir external vishwanathan iyer sir started with what function you are applying how many ships type of ships you did after class 4 pre sea from where how many written cleared what about other functions", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "BCL-592-006", "score": 0.35754677653312683, "sibling_score": 0.35754677653312683, "answer_score": null, "sibling_qid": "KOL-2025-10-2021-Q014", "sibling_text": "clearance is coming zero how you will take the vessel to port rest forgot", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bearing clearance is reading zero. How do you get the vessel to port?", "cross_family": true }, { "answer_id": "AE-CRP-005", "score": 0.3544740080833435, "sibling_score": 0.3544740080833435, "answer_score": null, "sibling_qid": "MUM-2026-05-3248-Q001", "sibling_text": "introduction sea time company pre sea ship type engine type me", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "MUM-2026-09-3897-Q003", "text": "What is free Air Delivery in MAC?", "family": "Air Compressor", "subtopic": "MAC / Air Compressor", "tid": "MUM-2026-09-3897", "tray": "new", "candidates": [ { "answer_id": "AC-VE-004", "score": 0.49728772044181824, "sibling_score": 0.49728772044181824, "answer_score": 0.2988344833254814, "sibling_qid": "CHE-2026-04-0263-Q013", "sibling_text": "free air delivery what temperature and volume", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "How do you determine main-air-compressor capacity or free-air delivery, and the units/conditions?", "cross_family": false }, { "answer_id": "MAC-353-011", "score": 0.45623844861984253, "sibling_score": 0.45623844861984253, "answer_score": null, "sibling_qid": "CHE-2023-04-0173-Q002", "sibling_text": "mac capacity capacity of air bottle", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Main air compressor specifications / capacity, and air-bottle capacity", "cross_family": false }, { "answer_id": "MAC-598-003", "score": 0.4500524401664734, "sibling_score": 0.4500524401664734, "answer_score": null, "sibling_qid": "MUM-2023-09-2744-Q001", "sibling_text": "mac not filling up the air bottle all checks and action", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "The compressor is not filling the bottle, or is taking longer than usual, or running continuously on low amps — checks and actions as 2/E", "cross_family": false } ] }, { "qid": "MUM-2026-09-3897-Q004", "text": "How to do Economiser soot blow?", "family": "Boilers - Operations & Firing", "subtopic": "Burner / Firing / Soot Blow", "tid": "MUM-2026-09-3897", "tray": "new", "candidates": [ { "answer_id": "BFS-257-010", "score": 0.6300806403160095, "sibling_score": 0.6300806403160095, "answer_score": 0.4377376765012741, "sibling_qid": "MUM-2025-11-2474-Q003", "sibling_text": "soot blowing done efficiently how do u know", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "How to confirm soot blowing has been carried out effectively", "cross_family": false }, { "answer_id": "BFS-257-008", "score": 0.6222984790802002, "sibling_score": 0.6222984790802002, "answer_score": 0.5104026466608047, "sibling_qid": "KOL-2019-07-3252-Q004", "sibling_text": "soot blower how to do soot blowing", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler / EGB soot-blowing — procedure, precautions, sequence", "cross_family": false }, { "answer_id": "BFS-257-009", "score": 0.48930754661560055, "sibling_score": null, "answer_score": 0.48930754661560055, "sibling_qid": "", "sibling_text": "egb soot blowing arrangement and cleaning with the main engine running egb economiser in the me uptake fouls with engine soot so it has its own soot blowers arrangement retractable rotary steam lances into the tube bank sealing air protects the lances", "sibling_family": "", "via": "answer_title", "answer_title": "EGB soot-blowing arrangement and cleaning with the main engine running", "cross_family": false } ] }, { "qid": "MUM-2026-09-3898-Q007", "text": "How we can get no load pf in t/f ? ", "family": "Electrical - Generator & Alternator", "subtopic": "Power Factor", "tid": "MUM-2026-09-3898", "tray": "new", "candidates": [ { "answer_id": "PF-A-002", "score": 0.4593058228492737, "sibling_score": 0.4593058228492737, "answer_score": null, "sibling_qid": "MUM-2026-02-1969-Q002", "sibling_text": "suppose you have a simple circuit and has only resistive load and there s no inductive load or capacitive load what will be the pf of this circuit", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Lagging, leading, unity, resistive, inductive, capacitive — and DC", "cross_family": false }, { "answer_id": "LS-IMB-A-001", "score": 0.42494529485702515, "sibling_score": 0.42494529485702515, "answer_score": null, "sibling_qid": "MUM-2024-04-0168-Q022", "sibling_text": "one generator load is low", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Two paralleled generators sharing unequal load — cause and correction", "cross_family": false }, { "answer_id": "AVR-EXC-H-002", "score": 0.4102023243904114, "sibling_score": 0.4102023243904114, "answer_score": null, "sibling_qid": "KOC-2025-10-1602-Q007", "sibling_text": "no load voltage how you can adjust internal", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Voltage trimmer — adjustment and biasing", "cross_family": false } ] }, { "qid": "MUM-2026-09-3898-Q009", "text": "Why we do the short Circuit and no load test? ", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Transformer Theory", "tid": "MUM-2026-09-3898", "tray": "new", "candidates": [ { "answer_id": "IOCT-565-004", "score": 0.5806924700737, "sibling_score": 0.5806924700737, "answer_score": 0.33786112517118455, "sibling_qid": "MUM-2026-06-3567-Q006", "sibling_text": "short circuit test", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "How is a short-circuit test carried out?", "cross_family": false }, { "answer_id": "XFMR-THY-B-003", "score": 0.5787208676338196, "sibling_score": 0.5787208676338196, "answer_score": null, "sibling_qid": "MUM-2026-03-2001-Q002", "sibling_text": "short circuit", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Transformer short-circuit (impedance) test and copper-loss measurement", "cross_family": false }, { "answer_id": "OCR-185-006", "score": 0.5289373397827148, "sibling_score": 0.5289373397827148, "answer_score": null, "sibling_qid": "CHE-2026-02-0332-Q014S5", "sibling_text": "short circuit", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "If short-circuit protection fails to operate; how it is checked", "cross_family": true } ] }, { "qid": "MUM-2026-09-3899-Q008", "text": "ACB racking out?", "family": "Electrical - High Voltage", "subtopic": "", "tid": "MUM-2026-09-3899", "tray": "new", "candidates": [ { "answer_id": "CBKR-D-ISORACK-001", "score": 0.6112544536590576, "sibling_score": 0.6112544536590576, "answer_score": 0.28982524275779725, "sibling_qid": "NOI-2026-08-0017-Q001", "sibling_text": "acb rack out procedure", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "How do you safely isolate, rack out, withdraw and prove dead an ACB/VCB before work?", "cross_family": true }, { "answer_id": "FWFB-P02-003", "score": 0.48255300521850586, "sibling_score": 0.48255300521850586, "answer_score": null, "sibling_qid": "CHE-2025-10-0072-Q003", "sibling_text": "racking", "sibling_family": "", "via": "sibling", "answer_title": "Framing systems and racking", "cross_family": false }, { "answer_id": "CBR-ARC-G-002", "score": 0.3401379123330116, "sibling_score": null, "answer_score": 0.3401379123330116, "sibling_qid": "", "sibling_text": "acb construction contacts arc chutes auxiliaries and vcb parts", "sibling_family": "", "via": "answer_title", "answer_title": "ACB construction, contacts, arc chutes, auxiliaries and VCB parts", "cross_family": false } ] }, { "qid": "MUM-2026-09-3900-Q001", "text": "Orals status", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-09-3900", "tray": "new", "candidates": [ { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.6378053426742554, "sibling_score": 0.6378053426742554, "answer_score": null, "sibling_qid": "MUM-2026-05-3187-Q001", "sibling_text": "status of other orals and written", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": true }, { "answer_id": "EXHV-P01-001", "score": 0.4376676380634308, "sibling_score": 0.4376676380634308, "answer_score": null, "sibling_qid": "KOC-2026-08-2106-Q001", "sibling_text": "status of written oral company type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "ACCT-583-A-001", "score": 0.41309207677841187, "sibling_score": 0.41309207677841187, "answer_score": null, "sibling_qid": "MUM-2024-10-2246-Q006", "sibling_text": "boiler accumulation test passes done with orals", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Explain the boiler accumulation pressure test — what it is, its purpose, and how it is carried out (including when and at what interval)", "cross_family": true } ] }, { "qid": "MUM-2026-09-3900-Q002", "text": "ICCP diode Shorted how to know?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Zener / Diode / Rectifier", "tid": "MUM-2026-09-3900", "tray": "new", "candidates": [ { "answer_id": "DIODESO-001", "score": 0.5859075784683228, "sibling_score": 0.5859075784683228, "answer_score": null, "sibling_qid": "MUM-2026-02-2927-Q012", "sibling_text": "diode in excitation system shorted", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Two alternators in parallel — one rotating rectifier diode goes short circuit. What happens, what if it goes open instead, and how do you know which it is?", "cross_family": true }, { "answer_id": "XFMR-THY-B-003", "score": 0.5496667623519897, "sibling_score": 0.5496667623519897, "answer_score": null, "sibling_qid": "MUM-2022-11-1368-Q005", "sibling_text": "short ckt test how done", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Transformer short-circuit (impedance) test and copper-loss measurement", "cross_family": false }, { "answer_id": "EPC-P01-02", "score": 0.5085362195968628, "sibling_score": 0.5085362195968628, "answer_score": null, "sibling_qid": "CHE-2026-05-0627-Q008", "sibling_text": "diode testing", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Types of diodes, and where diodes are used on board", "cross_family": false } ] }, { "qid": "MUM-2026-09-3901-Q001", "text": "WHICH vessels you did?", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-09-3901", "tray": "review", "candidates": [ { "answer_id": "CHEM-PA-011", "score": 0.6964941620826721, "sibling_score": 0.6964941620826721, "answer_score": null, "sibling_qid": "MUM-2026-03-2938-Q002", "sibling_text": "which vessel", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "What ‘en route’ means for Annex II discharge", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.6790410876274109, "sibling_score": 0.6790410876274109, "answer_score": null, "sibling_qid": "MUM-2026-03-2588-Q001", "sibling_text": "which ships u have done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.6497631072998047, "sibling_score": 0.6497631072998047, "answer_score": null, "sibling_qid": "CHE-2026-02-0481-Q001", "sibling_text": "type of vessels sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false } ] }, { "qid": "MUM-2026-09-3901-Q005", "text": "Wing tank function in bulk ?", "family": "Cargo Ops - Tankers", "subtopic": "Cargo Tank Construction", "tid": "MUM-2026-09-3901", "tray": "new", "candidates": [ { "answer_id": "LTK-386-001", "score": 0.5821959376335144, "sibling_score": 0.5821959376335144, "answer_score": null, "sibling_qid": "KOL-2019-12-0363-Q001", "sibling_text": "wing tank definition proper", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Explain the general layout of tanks on a tanker", "cross_family": false }, { "answer_id": "LOLL-P02-002", "score": 0.4665025472640991, "sibling_score": 0.4665025472640991, "answer_score": null, "sibling_qid": "KOL-2024-11-0881-Q003", "sibling_text": "only have port and starboard wing tank and and listing to starboard", "sibling_family": "", "via": "sibling", "answer_title": "1. Correcting angle of loll — the ballasting sequence", "cross_family": false }, { "answer_id": "BC-HOPPER-G-003", "score": 0.4664160907268524, "sibling_score": 0.4664160907268524, "answer_score": null, "sibling_qid": "KOL-2018-09-0217-Q002", "sibling_text": "use and location of hopper tanks and wing tanks", "sibling_family": "", "via": "sibling", "answer_title": "Hopper / topside tank construction and strengthening members", "cross_family": false } ] }, { "qid": "MUM-2026-09-3901-Q006", "text": "Change of GM in Bulk carrier ?", "family": "Ship Construction & Stability", "subtopic": "Stability Curves (GZ / KN)", "tid": "MUM-2026-09-3901", "tray": "new", "candidates": [ { "answer_id": "SOLAS12-BC-A-002", "score": 0.5879253149032593, "sibling_score": 0.5879253149032593, "answer_score": null, "sibling_qid": "KOL-2021-10-0556-Q001", "sibling_text": "1 changes in old and new bulk carriers", "sibling_family": "", "via": "sibling", "answer_title": "Why Chapter XII was introduced; old vs new bulk carriers and latest amendments", "cross_family": false }, { "answer_id": "SOLAS-XII-BC-006", "score": 0.560018002986908, "sibling_score": 0.560018002986908, "answer_score": 0.3822384119033813, "sibling_qid": "MUM-2026-04-0925-Q007", "sibling_text": "new amendment wrt bulk carrier", "sibling_family": "SOLAS - General (HOLD)", "via": "sibling", "answer_title": "Latest / amended SOLAS safety requirements for bulk carriers", "cross_family": true }, { "answer_id": "GM-META-005", "score": 0.5535367131233215, "sibling_score": 0.5535367131233215, "answer_score": null, "sibling_qid": "KOL-2021-10-0563-Q003", "sibling_text": "how can gm can be changed", "sibling_family": "", "via": "sibling", "answer_title": "The metacentre and metacentric height", "cross_family": false } ] }, { "qid": "MUM-2026-09-3901-Q007", "text": "Latest stern tube developments ?", "family": "Drydock & Underwater Surveys", "subtopic": "Stern Tube / Tail Shaft", "tid": "MUM-2026-09-3901", "tray": "new", "candidates": [ { "answer_id": "STS-P02-003", "score": 0.6201395988464355, "sibling_score": 0.6201395988464355, "answer_score": 0.43994849920272827, "sibling_qid": "KOL-2019-03-0267-Q003", "sibling_text": "stern tube how fitted arrangements", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "STS-P02-03 - Stern tube arrangement, fitting in hull and shaft support", "cross_family": false }, { "answer_id": "STS-P02-006", "score": 0.6195089221000671, "sibling_score": 0.6195089221000671, "answer_score": null, "sibling_qid": "KOL-2022-01-1658-Q002", "sibling_text": "stern tube seal all major parts and properties development", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "STS-P02-06 - Stern tube seals, integrity test, sleeve wasting and afloat repair", "cross_family": false }, { "answer_id": "STERN-P03-002", "score": 0.5898606181144714, "sibling_score": 0.5898606181144714, "answer_score": null, "sibling_qid": "MUM-2026-03-2663-Q002", "sibling_text": "stern tube seal renewal in place", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Stern-tube seals: arrangement, air/lip seals, renewal/replacement and the vulcanized split-seal fitting method", "cross_family": false } ] }, { "qid": "MUM-2026-09-3901-Q009", "text": "IACS FUNCTION WHY ?", "family": "Surveys - Statutory", "subtopic": "IACS / Classification Society", "tid": "MUM-2026-09-3901", "tray": "new", "candidates": [ { "answer_id": "IACS-324-001", "score": 0.6002311110496521, "sibling_score": 0.6002311110496521, "answer_score": 0.3268079489469528, "sibling_qid": "KOC-2023-09-0220-Q003", "sibling_text": "iacs function", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "1. What is IACS and what are its functions?", "cross_family": false }, { "answer_id": "ESP-A-001", "score": 0.47443699836730957, "sibling_score": 0.47443699836730957, "answer_score": null, "sibling_qid": "MUM-2025-08-1151-Q009", "sibling_text": "why we do esp", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the Enhanced Survey Programme (ESP), and what is its purpose?", "cross_family": false }, { "answer_id": "NPSH-001", "score": 0.4693230390548706, "sibling_score": 0.4693230390548706, "answer_score": null, "sibling_qid": "MUM-2026-04-1320-Q014", "sibling_text": "why is it", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "What is NPSH, and what are its types?", "cross_family": true } ] }, { "qid": "MUM-2026-09-3901-Q010", "text": "FSS code latest Developments?", "family": "SOLAS - Fire Safety", "subtopic": "FSS Code", "tid": "MUM-2026-09-3901", "tray": "new", "candidates": [ { "answer_id": "FSS-CODE-003", "score": 0.6358737349510193, "sibling_score": 0.6358737349510193, "answer_score": 0.4003759026527405, "sibling_qid": "MUM-2022-09-0044-Q009", "sibling_text": "fss code latest amendment", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "What is the latest amendment to the FSS Code, and why is the Code amended?", "cross_family": false }, { "answer_id": "FSS-CODE-001", "score": 0.6269804835319519, "sibling_score": 0.6269804835319519, "answer_score": 0.3153645843267441, "sibling_qid": "KOC-2025-09-0665-Q005", "sibling_text": "fss code feature", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "What is the FSS Code, its status under SOLAS, and why is it a separate code rather than text inside Chapter II-2?", "cross_family": false }, { "answer_id": "FSS-CODE-002", "score": 0.6030247807502747, "sibling_score": 0.6030247807502747, "answer_score": null, "sibling_qid": "KOC-2025-07-0627-Q006", "sibling_text": "fss code contents", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "How many chapters does the FSS Code have and what are they? Name the important chapters.", "cross_family": false } ] }, { "qid": "MUM-2026-09-3902-Q005", "text": "Blackout happened and what are the reason for blackout?", "family": "Electrical - Generator & Alternator", "subtopic": "Emergency DG", "tid": "MUM-2026-09-3902", "tray": "new", "candidates": [ { "answer_id": "EMCY-DG-P03-004", "score": 0.633358895778656, "sibling_score": 0.633358895778656, "answer_score": 0.38159518241882323, "sibling_qid": "KOC-2025-02-1487-Q006", "sibling_text": "explain sequence after blackout", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Blackout sequence — starting the set and taking load back", "cross_family": false }, { "answer_id": "EMCY-DG-P03-002", "score": 0.6266945600509644, "sibling_score": 0.6266945600509644, "answer_score": null, "sibling_qid": "KOC-2025-11-1650-Q005", "sibling_text": "what happens when blackout happens with circuit diagram", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Emergency generator auto-start circuit — draw and explain", "cross_family": false }, { "answer_id": "BOT-001", "score": 0.5875939726829529, "sibling_score": 0.5875939726829529, "answer_score": null, "sibling_qid": "CHE-2026-03-0357-Q005", "sibling_text": "blackout test produce", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "How do you carry out and demonstrate the blackout test in front of the surveyor — procedure, simulation, precautions before simulating, and what happens to machinery on the emergency switchboard?", "cross_family": false } ] }, { "qid": "MUM-2026-09-3903-Q001", "text": "Sire 2.0?", "family": "Surveys - Statutory", "subtopic": "ESP / Enhanced Survey", "tid": "MUM-2026-09-3903", "tray": "new", "candidates": [ { "answer_id": "ESP-B-004", "score": 0.4417056441307068, "sibling_score": 0.4417056441307068, "answer_score": null, "sibling_qid": "KOL-2026-02-1166-Q006", "sibling_text": "new amendments in sire 2 0 related to esp", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Recent ESP amendments & mixed cross-question prompts", "cross_family": false }, { "answer_id": "SOLAS-CH-002", "score": 0.39430469274520874, "sibling_score": 0.39430469274520874, "answer_score": null, "sibling_qid": "KOL-2023-08-0761-Q004", "sibling_text": "solas ch 2 1", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS Chapter II-1 - construction, machinery and electrical installations", "cross_family": true }, { "answer_id": "AV6-P05-01", "score": 0.3863486647605896, "sibling_score": 0.3863486647605896, "answer_score": null, "sibling_qid": "KOC-2025-03-0558-Q007", "sibling_text": "seemp 2", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP Part II — IMO DCS plan and contents", "cross_family": true } ] }, { "qid": "MUM-2026-09-3903-Q004", "text": "How will u confirm MARPOL annex 1 compliance while taking over?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "Annex VI / Pollutants & Scope", "tid": "MUM-2026-09-3903", "tray": "review", "candidates": [ { "answer_id": "AVI-SCOPE-002", "score": 0.6618620753288269, "sibling_score": 0.6618620753288269, "answer_score": null, "sibling_qid": "KOC-2025-06-0604-Q015", "sibling_text": "how is it verified that marpol annex 6 is complied on board tell as an engineer your point of view", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Explain the purpose and scope of MARPOL Annex VI.", "cross_family": false }, { "answer_id": "AVICERT-001", "score": 0.6499610543251038, "sibling_score": 0.6499610543251038, "answer_score": null, "sibling_qid": "KOL-2025-06-0951-Q007", "sibling_text": "all certificated under marpol annexe 6", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What certificates and documents are required to be carried on board under MARPOL Annex VI?", "cross_family": false }, { "answer_id": "AVICERT-006", "score": 0.6456186771392822, "sibling_score": 0.6456186771392822, "answer_score": null, "sibling_qid": "MUM-2025-08-0378-Q008", "sibling_text": "all certificates on ship as per marpol", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What certificates are carried on board under all the MARPOL annexes, Annex I to Annex VI?", "cross_family": false } ] }, { "qid": "MUM-2026-09-3903-Q006", "text": "OWS alarm criteria?", "family": "MARPOL - Annex I (Oil)", "subtopic": "Oil Discharge Criteria", "tid": "MUM-2026-09-3903", "tray": "new", "candidates": [ { "answer_id": "ODC-002", "score": 0.5918256640434265, "sibling_score": 0.5918256640434265, "answer_score": null, "sibling_qid": "KOC-2026-05-0043-Q003", "sibling_text": "ows criteria", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Machinery-space (engine room) bilge discharge criteria — outside a special area", "cross_family": false }, { "answer_id": "OWS-ORB-001", "score": 0.590312659740448, "sibling_score": 0.590312659740448, "answer_score": null, "sibling_qid": "MUM-2023-11-0151-Q004", "sibling_text": "ows alarm response time as per new amendment", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "1. OWS / 15 ppm bilge alarm — required response time", "cross_family": false }, { "answer_id": "OMD-001", "score": 0.5800333619117737, "sibling_score": 0.5800333619117737, "answer_score": null, "sibling_qid": "KOC-2026-05-0041-Q010", "sibling_text": "omd alarm actions", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "The OMD alarm sounds on your watch. What are your actions, the checks and crankcase inspection that follow, and what are the alarm levels?", "cross_family": true } ] }, { "qid": "MUM-2026-09-3903-Q007", "text": "Discharge capacity for DCP hand hose and nozzle?", "family": "SOLAS - Fire Safety", "subtopic": "DCP / Dry Powder", "tid": "MUM-2026-09-3903", "tray": "new", "candidates": [ { "answer_id": "FIRE-P03-02", "score": 0.6305800080299377, "sibling_score": 0.6305800080299377, "answer_score": null, "sibling_qid": "KOC-2024-09-0415-Q006", "sibling_text": "fire pump discharge rate", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Main fire pumps — SOLAS number, capacity and pressure requirements", "cross_family": false }, { "answer_id": "FHD-616-002", "score": 0.6202008128166199, "sibling_score": 0.6202008128166199, "answer_score": null, "sibling_qid": "KOC-2025-12-0749-Q005", "sibling_text": "fire hose nozzle dimension", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fire hoses and nozzles together — nozzle sizes and the minimum number of hoses in the engine room", "cross_family": false }, { "answer_id": "FOAM-P01-004", "score": 0.6027647852897644, "sibling_score": 0.6027647852897644, "answer_score": null, "sibling_qid": "KOC-2023-10-0221-Q006", "sibling_text": "foam applicator discharge rate", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Foam applicator: parts, installation and discharge rate", "cross_family": false } ] }, { "qid": "MUM-2026-09-3904-Q002", "text": "Water in sump reasons and action’s ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "LO Sump", "tid": "MUM-2026-09-3904", "tray": "new", "candidates": [ { "answer_id": "LO-SUMP-001", "score": 0.6156724691390991, "sibling_score": 0.6156724691390991, "answer_score": null, "sibling_qid": "MUM-2023-12-2214-Q002", "sibling_text": "me sump level rising what reasons", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main-engine LO sump level rising / crankcase oil increasing", "cross_family": false }, { "answer_id": "LO-SUMP-002", "score": 0.6011794209480286, "sibling_score": 0.6011794209480286, "answer_score": null, "sibling_qid": "MUM-2025-09-2832-Q005", "sibling_text": "sump level low reasons and action mep", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main-engine LO sump level low / dropping — reasons and action", "cross_family": false }, { "answer_id": "LO-SUMP-003", "score": 0.5686376690864563, "sibling_score": 0.5686376690864563, "answer_score": 0.4217754930257797, "sibling_qid": "MUM-2024-02-1076-Q013", "sibling_text": "water in me in sump what action as 2e wait for lobby in few minutes", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Water in the main-engine sump / sump flooding — action as 2nd engineer", "cross_family": false } ] }, { "qid": "MUM-2026-09-3904-Q003", "text": "No AE Sump oil onboard how will you prepare ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Cylinder Lubrication", "tid": "MUM-2026-09-3904", "tray": "new", "candidates": [ { "answer_id": "LO-TEST-P02-002", "score": 0.6269711852073669, "sibling_score": 0.6269711852073669, "answer_score": null, "sibling_qid": "KOL-2025-06-1803-Q004", "sibling_text": "me sump oil with full of water ur action as 2nd eng also u have less time", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "LO contamination by water, fuel, microbes or solids: sources, indications, actions", "cross_family": false }, { "answer_id": "LO-TEST-P01-004", "score": 0.606292724609375, "sibling_score": 0.606292724609375, "answer_score": null, "sibling_qid": "MUM-2025-08-2357-Q005", "sibling_text": "ge c c oil is not present onboard and you have to change the generator cc oil what you will do how to know correct tbn", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "TBN, BN, TAN, SAN and the SAE grade", "cross_family": false }, { "answer_id": "LO-SUMP-005", "score": 0.5886403918266296, "sibling_score": 0.5886403918266296, "answer_score": 0.4323014348745346, "sibling_qid": "MUM-2025-01-2790-Q009", "sibling_text": "me sump oil fill action as 2e", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main-engine sump oil filling / make-up — action as 2nd engineer", "cross_family": false } ] }, { "qid": "MUM-2026-09-3904-Q007", "text": "Difference between 6326 & 6336 Bearings ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Bearings / Lubrication", "tid": "MUM-2026-09-3904", "tray": "new", "candidates": [ { "answer_id": "BRG-NOM-001", "score": 0.5898658633232117, "sibling_score": 0.5898658633232117, "answer_score": null, "sibling_qid": "MUM-2025-07-2816-Q011", "sibling_text": "difference between 6202 and 6203 bearing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bearing Numbers, Suffixes and What to State When Ordering", "cross_family": false }, { "answer_id": "BRG-NOM-005", "score": 0.5512570738792419, "sibling_score": 0.5512570738792419, "answer_score": null, "sibling_qid": "KOC-2025-11-1968-Q009", "sibling_text": "difference between end loaded and bush bearings", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bush, Insert, End-Loaded and Undersize Bearings — and Ordering Data", "cross_family": false }, { "answer_id": "WMAT-170-003", "score": 0.5261813998222351, "sibling_score": 0.5261813998222351, "answer_score": 0.40128889232873916, "sibling_qid": "KOL-2018-08-1402-Q002", "sibling_text": "thickshell n thinshell bearing design differences advtg", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Thin-shell and thick-shell bearings: design, advantages, developments", "cross_family": false } ] }, { "qid": "MUM-2026-09-3905-Q003", "text": "How much instances rate of discharge of oil ?", "family": "MARPOL - Annex I (Oil)", "subtopic": "Oil Discharge Criteria", "tid": "MUM-2026-09-3905", "tray": "new", "candidates": [ { "answer_id": "ODC-008", "score": 0.549957811832428, "sibling_score": 0.549957811832428, "answer_score": null, "sibling_qid": "MUM-2026-03-0860-Q003", "sibling_text": "discharge criteria of your ship oil tanker more and more", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Cargo-area discharge criteria for an oil tanker — outside a special area", "cross_family": false }, { "answer_id": "ODC-010", "score": 0.545041024684906, "sibling_score": 0.545041024684906, "answer_score": 0.5054787695407867, "sibling_qid": "CHE-2026-09-3907-Q005", "sibling_text": "cargo residual instantaneous rate of discharge explain", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Instantaneous rate of discharge of oil content — definition, unit and calculation", "cross_family": false }, { "answer_id": "SOPEP-003", "score": 0.5301063060760498, "sibling_score": 0.5301063060760498, "answer_score": null, "sibling_qid": "KOL-2022-12-0709-Q004", "sibling_text": "during bunkering oil spilled outside ship action as 2 e", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Oil Spill and Bunkering-Spill Response under the SOPEP", "cross_family": false } ] }, { "qid": "MUM-2026-09-3905-Q004", "text": "Aft peak tank how you will seal with stern tube ?", "family": "Shafting, Propeller & Rudder", "subtopic": "Stern Tube / Tail Shaft Bearings", "tid": "MUM-2026-09-3905", "tray": "review", "candidates": [ { "answer_id": "STT-BRG-003", "score": 0.6730784773826599, "sibling_score": 0.6730784773826599, "answer_score": 0.46574683487415314, "sibling_qid": "KOL-2023-06-1933-Q004", "sibling_text": "stern tube aft sealing arrangement and what all items located there", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "2. Stern tube seals — lip, radial-face and simplex arrangement (oil and air)", "cross_family": false }, { "answer_id": "STT-BRG-004", "score": 0.6712836623191833, "sibling_score": 0.6712836623191833, "answer_score": null, "sibling_qid": "KOC-2025-12-1078-Q008", "sibling_text": "stern tube fwd seal arrangement how seal is secured how liner is secured", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "3. Chrome liner and seal securing — fitting, retention and repair", "cross_family": false }, { "answer_id": "STT-BRG-006", "score": 0.6479876637458801, "sibling_score": 0.6479876637458801, "answer_score": null, "sibling_qid": "KOL-2017-07-1304-Q004", "sibling_text": "aft seal description of stern tube and how to rectify if liner is worn nd hav no spare", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "5. Seal leakage — corrective action at sea and in dry dock", "cross_family": false } ] }, { "qid": "MUM-2026-09-3905-Q005", "text": "Keyless propeller how you fit with propeller and what material ?", "family": "NDT & Material Testing", "subtopic": "Stainless / Gun Metal / Brass", "tid": "MUM-2026-09-3905", "tray": "review", "candidates": [ { "answer_id": "PROP-PN-B-002", "score": 0.6787676215171814, "sibling_score": 0.6787676215171814, "answer_score": null, "sibling_qid": "KOL-2021-08-1623-Q004", "sibling_text": "keyless propeller fitting", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Fitting a keyless propeller (oil-injection push-up method)", "cross_family": true }, { "answer_id": "PROP-PN-C-001", "score": 0.6522465944290161, "sibling_score": 0.6522465944290161, "answer_score": 0.561051344871521, "sibling_qid": "KOL-2024-12-4043-Q005", "sibling_text": "keyless propeller advantage sleeve location how fixed", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Keyless propeller — sleeve, boss fit and material", "cross_family": true }, { "answer_id": "SGB-212-012", "score": 0.6358714699745178, "sibling_score": 0.6358714699745178, "answer_score": null, "sibling_qid": "KOC-2026-05-2137-Q005", "sibling_text": "propeller material", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Ship propeller material and composition", "cross_family": false } ] }, { "qid": "MUM-2026-09-3906-Q001", "text": "What low carbon fuel oil ?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Cold Corrosion", "tid": "MUM-2026-09-3906", "tray": "new", "candidates": [ { "answer_id": "CC-294-002", "score": 0.6317338347434998, "sibling_score": 0.6317338347434998, "answer_score": null, "sibling_qid": "KOC-2026-08-2156-Q004", "sibling_text": "advantages of low sulphur fuel oil", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Causes — and why owners still fear it on VLSFO", "cross_family": false }, { "answer_id": "SFOC-001", "score": 0.5926352739334106, "sibling_score": 0.5926352739334106, "answer_score": null, "sibling_qid": "KOL-2025-04-3776-Q005", "sibling_text": "specific fuel oil consumption", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What is SFOC? Definition, formula, unit — and how you get the corrected density", "cross_family": false }, { "answer_id": "BIO-FUEL-001", "score": 0.5801234245300293, "sibling_score": 0.5801234245300293, "answer_score": 0.5062761187553405, "sibling_qid": "MUM-2026-06-3410-Q002", "sibling_text": "carbon neutral fuel", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Alternative and non-carbon marine fuels — and the latest developments", "cross_family": true } ] }, { "qid": "MUM-2026-09-3906-Q002", "text": "Difference between fossil oil and low carbon oil with example?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "LO Pressure Alarm", "tid": "MUM-2026-09-3906", "tray": "new", "candidates": [ { "answer_id": "CYL-LUB-B-002", "score": 0.5422983169555664, "sibling_score": 0.5422983169555664, "answer_score": null, "sibling_qid": "KOL-2024-08-1950-Q006", "sibling_text": "me cyl oil properties wanted to listen high sulphur and low sulphur tbn", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Cylinder oil — required properties; can any oil be used?", "cross_family": false }, { "answer_id": "BIO-FUEL-001", "score": 0.48510730266571045, "sibling_score": 0.48510730266571045, "answer_score": 0.44188801646232606, "sibling_qid": "MUM-2026-09-3975-Q011", "sibling_text": "what are non carbon fuels", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Alternative and non-carbon marine fuels — and the latest developments", "cross_family": true }, { "answer_id": "LO-TEST-P01-005", "score": 0.4811215400695801, "sibling_score": 0.4811215400695801, "answer_score": null, "sibling_qid": "MUM-2022-09-2147-Q003", "sibling_text": "mineral oil and synthetic oils where used why used what s the difference", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Lube-oil properties, types and selection by duty", "cross_family": false } ] }, { "qid": "MUM-2026-09-3906-Q004", "text": "Different type of choke ME ? Material and position reasons ?", "family": "Auxiliary Equipment", "subtopic": "VALVES", "tid": "MUM-2026-09-3906", "tray": "new", "candidates": [ { "answer_id": "CHK-RM-001", "score": 0.5130774974822998, "sibling_score": 0.5130774974822998, "answer_score": 0.34203641712665556, "sibling_qid": "KOL-2024-12-1960-Q006", "sibling_text": "choks type of choks where fitted which choks have big area", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What are chocks? Function, types, where fitted and how placed — which have the biggest area, and how does the bedplate connect to the hull?", "cross_family": true }, { "answer_id": "CHK-330-003", "score": 0.49873021245002747, "sibling_score": 0.49873021245002747, "answer_score": null, "sibling_qid": "KOC-2022-02-0958-Q005", "sibling_text": "draw and explain end chokes draw and explain side chokes", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "End chocks and side chocks — sketch and explanation", "cross_family": true }, { "answer_id": "CHK-330-001", "score": 0.4915635287761688, "sibling_score": 0.4915635287761688, "answer_score": null, "sibling_qid": "KOC-2021-07-0920-Q011", "sibling_text": "chokes in engine tat u can see function of it material", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What is the purpose and function of main engine chocks?", "cross_family": true } ] }, { "qid": "MUM-2026-09-3906-Q005", "text": "Ogee ring ?How it is fitted with furnace to she'll", "family": "Boilers - Construction & Components", "subtopic": "Ogee Ring", "tid": "MUM-2026-09-3906", "tray": "new", "candidates": [ { "answer_id": "OGEE-RING-001", "score": 0.6306931376457214, "sibling_score": 0.6306931376457214, "answer_score": 0.5559789210557937, "sibling_qid": "KOL-2025-12-2029-Q004", "sibling_text": "ogee ring purpose shape how fitted bolted riveted welded", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "The ogee ring: what it is, where it sits, its purpose, and how it's formed and connected", "cross_family": false }, { "answer_id": "BLR-TUBE-P01-001", "score": 0.405614909529686, "sibling_score": null, "answer_score": 0.405614909529686, "sibling_qid": "", "sibling_text": "01 attaching fitting and supporting boiler tubes primary method tubeexpandedinto the seat with a roller expander thenbell mouthed flared large tubes downcomers seat isgrooved metal beds in for grip a tight seal", "sibling_family": "", "via": "answer_title", "answer_title": "01. Attaching, fitting and supporting boiler tubes", "cross_family": false }, { "answer_id": "PRING-B-006", "score": 0.36086769998073576, "sibling_score": null, "answer_score": 0.36086769998073576, "sibling_qid": "", "sibling_text": "general oral questions oblique angular or stepped ring gap joint seals across the gap as it wears avoiding the straight blow by path of a plain butt cut the man b w cpr ring uses a gas tight double s lock finger lock joint engine top ring taller thicker than a compressor ring it takes far higher combustion pressure and temperature so it needs strength bearing area and heat transfer capacity the co", "sibling_family": "", "via": "answer_title", "answer_title": "General oral questions", "cross_family": false } ] }, { "qid": "MUM-2026-09-3907-Q002", "text": "Material of shaft liner. how it is connected to boss?", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "MUM-2026-09-3907", "tray": "new", "candidates": [ { "answer_id": "PROP-PIL-A-001", "score": 0.5377830862998962, "sibling_score": 0.5377830862998962, "answer_score": null, "sibling_qid": "MUM-2025-08-2353-Q003", "sibling_text": "material of sleeve between the propeller boss and shaft why used how fitted fitting process properties of pearlitic grey cast iron", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Pilgrim / SKF hydraulic nut — fitting, push-up, extraction and removal", "cross_family": true }, { "answer_id": "PROP-PN-C-001", "score": 0.5375562310218811, "sibling_score": 0.5375562310218811, "answer_score": 0.4442989110946655, "sibling_qid": "KOL-2024-03-3677-Q004", "sibling_text": "how sleeve is connected to boss material of sleeve and fitting procedure", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Keyless propeller — sleeve, boss fit and material", "cross_family": true }, { "answer_id": "PRING-B-003", "score": 0.4891833961009979, "sibling_score": 0.4891833961009979, "answer_score": null, "sibling_qid": "KOL-2025-12-4075-Q006", "sibling_text": "if liner is chrome coated piston ring coating material", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Material, coating & manufacture", "cross_family": false } ] }, { "qid": "MUM-2026-09-3907-Q003", "text": "How to improve the COP of ref plant?", "family": "Refrigeration & AC", "subtopic": "Refer Cycle", "tid": "MUM-2026-09-3907", "tray": "new", "candidates": [ { "answer_id": "REF-CYC-007", "score": 0.5971809029579163, "sibling_score": 0.5971809029579163, "answer_score": 0.4420703053474426, "sibling_qid": "KOL-2024-03-1774-Q002", "sibling_text": "how to improve cop other than subcooling how it can be improved", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "7. COP and improving refrigeration efficiency", "cross_family": false }, { "answer_id": "REF-CYC-010", "score": 0.5916478037834167, "sibling_score": 0.5916478037834167, "answer_score": 0.45804880261421205, "sibling_qid": "KOL-2019-05-3239-Q004", "sibling_text": "d reefer plant cop definition and how to improve", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "COP of a refrigeration plant, and how to improve it", "cross_family": false }, { "answer_id": "REEF-CHG-001", "score": 0.4908369779586792, "sibling_score": 0.4908369779586792, "answer_score": null, "sibling_qid": "KOL-2025-06-3784-Q004", "sibling_text": "4 how to charge gas in ref plant", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "01Charging or replenishing the refrigerant in a refrigeration / AC plant", "cross_family": false } ] }, { "qid": "MUM-2026-09-3907-Q005", "text": "how to pressure test AE LO cooler?", "family": "Heat Exchangers & Coolers", "subtopic": "Shell and Tube", "tid": "MUM-2026-09-3907", "tray": "new", "candidates": [ { "answer_id": "STHX-003", "score": 0.6369110941886902, "sibling_score": 0.6369110941886902, "answer_score": null, "sibling_qid": "KOL-2019-02-3213-Q007", "sibling_text": "to do press test of shell n tube cooler", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "STHX-03 — Pressure and leak testing", "cross_family": false }, { "answer_id": "LO-CLR-002", "score": 0.6323291063308716, "sibling_score": 0.6323291063308716, "answer_score": 0.5522801488637924, "sibling_qid": "KOL-2017-04-3051-Q002", "sibling_text": "l o cooler pressure testing in details with cross questions", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you pressure-test a lube-oil cooler?", "cross_family": true }, { "answer_id": "STHX-008", "score": 0.6048863530158997, "sibling_score": 0.6048863530158997, "answer_score": null, "sibling_qid": "KOL-2019-01-3208-Q005", "sibling_text": "how to pressure test dumb condenser", "sibling_family": "Heat Exchangers & Coolers", "via": "sibling", "answer_title": "STHX-08 — Condensers (main / auxiliary / dump): tube attachment, testing, renewal and safety", "cross_family": false } ] }, { "qid": "MUM-2026-09-3908-Q001", "text": "How to order gland packing ?", "family": "2-Stroke - Components (Other)", "subtopic": "Stuffing Box / Piston Rod Gland", "tid": "MUM-2026-09-3908", "tray": "new", "candidates": [ { "answer_id": "SBPG-A-002", "score": 0.6429560780525208, "sibling_score": 0.6429560780525208, "answer_score": 0.29245262444019315, "sibling_qid": "KOC-2025-07-1930-Q001", "sibling_text": "types of gland packing", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston-rod gland detail — neutral space, and the soft-gland terms (packing, lantern ring, neck bush)", "cross_family": false }, { "answer_id": "PCD-P03-04", "score": 0.593246579170227, "sibling_score": 0.593246579170227, "answer_score": 0.32216274887323376, "sibling_qid": "MUM-2025-08-2377-Q001", "sibling_text": "types of gland packing", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Gland packing — types, and gland leakage that persists after re-packing", "cross_family": true }, { "answer_id": "SB-PRG-B-001", "score": 0.4594806432723999, "sibling_score": 0.4594806432723999, "answer_score": null, "sibling_qid": "CHE-2026-05-0559-Q008", "sibling_text": "stuffing box in place", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "In-situ stuffing box overhaul (piston in the engine)", "cross_family": false } ] }, { "qid": "MUM-2026-09-3908-Q003", "text": "Gear train?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Camshaft Drive / Gear Arrangement", "tid": "MUM-2026-09-3908", "tray": "new", "candidates": [ { "answer_id": "PCD-P05-02", "score": 0.5806412100791931, "sibling_score": 0.5806412100791931, "answer_score": null, "sibling_qid": "KOL-2026-03-2045-Q006", "sibling_text": "timing gear working and function", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Screw pump — construction, working, types, drive arrangement, clearances, why preferred over gear", "cross_family": false }, { "answer_id": "MATPROP-A-007", "score": 0.5756291747093201, "sibling_score": 0.5756291747093201, "answer_score": null, "sibling_qid": "KOL-2017-05-1292-Q001", "sibling_text": "transmission gear material", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Materials for ship and engine components", "cross_family": true }, { "answer_id": "TG-MOTOR-001", "score": 0.5733523368835449, "sibling_score": 0.5733523368835449, "answer_score": null, "sibling_qid": "MUM-2026-07-3697-Q001", "sibling_text": "turning gear motor", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What type of motor is used for the turning gear, and what type of rotor does it have?", "cross_family": true } ] }, { "qid": "MUM-2026-09-3908-Q004", "text": "hHow to take gear teeth clearance?", "family": "Shafting, Propeller & Rudder", "subtopic": "Thrust Block / Bearing", "tid": "MUM-2026-09-3908", "tray": "new", "candidates": [ { "answer_id": "BCL-592-002", "score": 0.5439454913139343, "sibling_score": 0.5439454913139343, "answer_score": 0.4305244982242584, "sibling_qid": "MUM-2026-02-2926-Q005", "sibling_text": "m e bearing clearance how to take", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Take me through all the clearances you measure on the main engine and how you take each one.", "cross_family": true }, { "answer_id": "TB-BEAR-001", "score": 0.538263738155365, "sibling_score": 0.538263738155365, "answer_score": null, "sibling_qid": "KOC-2023-12-0986-Q015", "sibling_text": "how will you take me thust bearing clearance", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Thrust bearing clearance — measurement procedure & value", "cross_family": false }, { "answer_id": "MN-BRG-C-003", "score": 0.5373319983482361, "sibling_score": 0.5373319983482361, "answer_score": null, "sibling_qid": "KOL-2024-10-3720-Q008", "sibling_text": "how to take clearance in main bearing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main bearing clearance and wear-down: measuring and interpreting", "cross_family": true } ] }, { "qid": "MUM-2026-09-3908-Q007", "text": "Action what to do if TC turbine side exhaust leaking?", "family": "Turbocharger", "subtopic": "Turbocharger Construction & Surging", "tid": "MUM-2026-09-3908", "tray": "new", "candidates": [ { "answer_id": "TC-TROUBLE-338-010", "score": 0.6229953169822693, "sibling_score": 0.6229953169822693, "answer_score": null, "sibling_qid": "MUM-2026-03-2588-Q003", "sibling_text": "me turbocharger turbine side got holed how will you proceed", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "10. Turbocharger casing crack — checks and onboard repair", "cross_family": false }, { "answer_id": "EGB-001", "score": 0.6027177572250366, "sibling_score": 0.6027177572250366, "answer_score": 0.5083484262228012, "sibling_qid": "KOL-2019-11-3291-Q005", "sibling_text": "exhaust boiler tube leak what to do", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "The exhaust gas boiler tubes are leaking — indications, how you confirm it, your action as 2/E, and what you do when plugging is not enough and the engine cannot be stopped.", "cross_family": true }, { "answer_id": "BLR-TUBE-P02-001", "score": 0.5986475348472595, "sibling_score": 0.5986475348472595, "answer_score": null, "sibling_qid": "KOL-2018-03-1356-Q008", "sibling_text": "exhaust valve boiler tube leaking action", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Identifying a boiler tube leak and finding the leaking tube", "cross_family": true } ] }, { "qid": "MUM-2026-09-3909-Q001", "text": "Gland packing type? which is best oil resistant ?", "family": "Workshop Practice / Tools", "subtopic": "GLAND PACKING", "tid": "MUM-2026-09-3909", "tray": "new", "candidates": [ { "answer_id": "PCD-P03-04", "score": 0.5780222415924072, "sibling_score": 0.5780222415924072, "answer_score": 0.5314782410860062, "sibling_qid": "KOC-2026-05-2132-Q019", "sibling_text": "types of glandpacking with respect to materials application", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Gland packing — types, and gland leakage that persists after re-packing", "cross_family": true }, { "answer_id": "SBPG-A-002", "score": 0.5662020444869995, "sibling_score": 0.5662020444869995, "answer_score": 0.4130132645368576, "sibling_qid": "KOC-2025-07-1928-Q001", "sibling_text": "types of gland packing", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston-rod gland detail — neutral space, and the soft-gland terms (packing, lantern ring, neck bush)", "cross_family": true }, { "answer_id": "CLC-CIV-A-003", "score": 0.5635625720024109, "sibling_score": 0.5635625720024109, "answer_score": null, "sibling_qid": "KOC-2024-03-0311-Q013", "sibling_text": "persistant oil", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "CLC scope — persistent oil pollution damage", "cross_family": true } ] }, { "qid": "MUM-2026-09-3909-Q002", "text": "How to make M10 thread ?", "family": "Workshop & Welding", "subtopic": "Lathe / Tap & Die", "tid": "MUM-2026-09-3909", "tray": "new", "candidates": [ { "answer_id": "BBR-004", "score": 0.4813925623893738, "sibling_score": 0.4813925623893738, "answer_score": 0.3233153536915779, "sibling_qid": "KOL-2019-12-1505-Q007", "sibling_text": "how you will make thread in a ms rod you have a broken stud for sample", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "How do you make or restore a thread in an MS rod using a broken stud as a sample?", "cross_family": false }, { "answer_id": "LATHE-TD-001", "score": 0.4370751976966858, "sibling_score": 0.4370751976966858, "answer_score": null, "sibling_qid": "MUM-2022-09-2145-Q008", "sibling_text": "how threads are made on it", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "The lathe — types, main parts, construction and shipboard use", "cross_family": false }, { "answer_id": "LATHE-TD-003", "score": 0.43168389797210693, "sibling_score": 0.43168389797210693, "answer_score": 0.31432799994945526, "sibling_qid": "KOL-2021-11-3489-Q003", "sibling_text": "small stud how to thread made", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Thread cutting — lathe, taps & dies, TPI and tapping-drill size", "cross_family": false } ] }, { "qid": "MUM-2026-09-3909-Q004", "text": "Exhaust valve isolation ? ( he wants method of quick isolation )", "family": "Auxiliary Equipment", "subtopic": "Quick Closing Valve", "tid": "MUM-2026-09-3909", "tray": "new", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.6436581015586853, "sibling_score": 0.6436581015586853, "answer_score": null, "sibling_qid": "MUM-2026-09-3908-Q006", "sibling_text": "how to lock exhaust valve", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": true }, { "answer_id": "EXV-P02-001", "score": 0.642296314239502, "sibling_score": 0.642296314239502, "answer_score": 0.5327441811561584, "sibling_qid": "KOL-2025-01-3743-Q003", "sibling_text": "exhaust valve technical precautions while dismantling", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve overhaul & dismantling — procedure and precautions", "cross_family": true }, { "answer_id": "EXV-P02-003", "score": 0.6092048287391663, "sibling_score": 0.6092048287391663, "answer_score": null, "sibling_qid": "MUM-2026-01-2537-Q003", "sibling_text": "checks in exhaust valve before fitting", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Checks and tests after overhaul — before refitting", "cross_family": true } ] }, { "qid": "MUM-2026-09-3910-Q002", "text": "Details of chapter 9-1 ?", "family": "SOLAS - General (HOLD)", "subtopic": "", "tid": "MUM-2026-09-3910", "tray": "new", "candidates": [ { "answer_id": "SOLAS-OVW-009", "score": 0.5298974514007568, "sibling_score": 0.5298974514007568, "answer_score": null, "sibling_qid": "MUM-2026-09-3910-Q001", "sibling_text": "solas chapter 9", "sibling_family": "SOLAS - General (HOLD)", "via": "sibling", "answer_title": "SOLAS Chapter IX — ISM Code (safe operation)", "cross_family": false }, { "answer_id": "SOLAS-CH-007", "score": 0.5078353881835938, "sibling_score": 0.5078353881835938, "answer_score": null, "sibling_qid": "KOC-2023-01-0142-Q001", "sibling_text": "solas chapter 9 explain and", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS Chapter IX - ISM Code and certificates", "cross_family": true }, { "answer_id": "SOLAS-XII-BC-002", "score": 0.46412256360054016, "sibling_score": 0.46412256360054016, "answer_score": null, "sibling_qid": "MUM-2025-12-0619-Q007", "sibling_text": "chapter 12 detail", "sibling_family": "SOLAS - General (HOLD)", "via": "sibling", "answer_title": "Explain SOLAS Chapter XII — the additional safety measures for bulk carriers", "cross_family": false } ] }, { "qid": "MUM-2026-09-3910-Q004", "text": "What is IEEC and how to get that certificate ?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "IEEC", "tid": "MUM-2026-09-3910", "tray": "new", "candidates": [ { "answer_id": "IEEC-003", "score": 0.6457749009132385, "sibling_score": 0.6457749009132385, "answer_score": 0.4046177417039871, "sibling_qid": "KOL-2026-04-1216-Q005", "sibling_text": "ieec certificate in detail", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Contents and details of the IEEC", "cross_family": false }, { "answer_id": "IEEC-001", "score": 0.6249293684959412, "sibling_score": 0.6249293684959412, "answer_score": null, "sibling_qid": "MUM-2026-02-0740-Q007", "sibling_text": "how will you get ieec certificate", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Basis, requirement and prerequisites for issuing an IEEC", "cross_family": false }, { "answer_id": "IEEC-002", "score": 0.6120920777320862, "sibling_score": 0.6120920777320862, "answer_score": 0.35989143103361126, "sibling_qid": "KOL-2018-06-0184-Q003", "sibling_text": "ieec", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "IEEC validity and the conditions under which it changes", "cross_family": false } ] }, { "qid": "MUM-2026-09-3910-Q007", "text": "EPIRB & its location and how it gets activated?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "EPIRB / SART", "tid": "MUM-2026-09-3910", "tray": "new", "candidates": [ { "answer_id": "EPIRB-003", "score": 0.5234531164169312, "sibling_score": 0.5234531164169312, "answer_score": 0.3659153237938881, "sibling_qid": "CHE-2025-08-0038-Q004", "sibling_text": "epirb how the signal is sent where it is sent what information is sent", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What signal does the EPIRB send — frequency, how and where it is routed, who receives it, and how it is stored and activated?", "cross_family": false }, { "answer_id": "EPIRB-001", "score": 0.5167281031608582, "sibling_score": 0.5167281031608582, "answer_score": 0.3898714929819107, "sibling_qid": "KOL-2020-10-0433-Q003", "sibling_text": "epirb details", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What is an EPIRB? Explain its construction, working, operation and battery specification.", "cross_family": false }, { "answer_id": "EPIRB-SART-001", "score": 0.31887364536523816, "sibling_score": null, "answer_score": 0.31887364536523816, "sibling_qid": "", "sibling_text": "what is the difference between epirb and sart give the function construction use and operation of each epirb 406 mhz satellite distress alert to cospas sarsat plus a 121 5 mhz homing signal float free with a hydrostatic release battery at least 48 hours unique 15 hex digit id registered to the vessel sart radar 9 ghz x band only 9 2 9 5 ghz it does not answer s band radar responds to interrogation", "sibling_family": "", "via": "answer_title", "answer_title": "What is the difference between EPIRB and SART? Give the function, construction, use and operation of each.", "cross_family": false } ] }, { "qid": "MUM-2026-09-3911-Q003", "text": "Kw is not developing, what to check? Speed and frequency- governor", "family": "Automation & Controls", "subtopic": "Governor (Mechanical / Electronic)", "tid": "MUM-2026-09-3911", "tray": "review", "candidates": [ { "answer_id": "GOV-P03-002", "score": 0.6785451769828796, "sibling_score": 0.6785451769828796, "answer_score": null, "sibling_qid": "KOC-2025-11-1067-Q002", "sibling_text": "speed setting in governor", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Droop, isochronous operation and load sharing", "cross_family": false }, { "answer_id": "GOV-082-P01-001", "score": 0.6235641837120056, "sibling_score": 0.6235641837120056, "answer_score": 0.4876209437847137, "sibling_qid": "MUM-2026-05-3194-Q011", "sibling_text": "does the because i told we have woodward electronic governor woodward governor increase or decrease fuel when speed changes", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "What a governor does and how it controls engine speed", "cross_family": false }, { "answer_id": "GOV-082-P01-017", "score": 0.6201847195625305, "sibling_score": 0.6201847195625305, "answer_score": null, "sibling_qid": "KOC-2025-03-1503-Q005", "sibling_text": "governor motor failed how to control speed of the generator", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "The AE governor speed-setting motor and load sharing in parallel", "cross_family": false } ] }, { "qid": "MUM-2026-09-3911-Q008", "text": "If phase sequence is not matching, what will happen?", "family": "Electrical - Generator & Alternator", "subtopic": "Synchronization", "tid": "MUM-2026-09-3911", "tray": "new", "candidates": [ { "answer_id": "PH-SEQ-001", "score": 0.6428122520446777, "sibling_score": 0.6428122520446777, "answer_score": 0.3719312116503715, "sibling_qid": "MUM-2026-09-3911-Q007", "sibling_text": "what is phase sequence", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "What is phase sequence, and how is it related to phase angle?", "cross_family": false }, { "answer_id": "SYNC-B-003", "score": 0.6421273350715637, "sibling_score": 0.6421273350715637, "answer_score": 0.4402233004570007, "sibling_qid": "KOC-2025-02-1483-Q003", "sibling_text": "what is phase sequence", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Phase sequence — what it is and how it is matched", "cross_family": false }, { "answer_id": "SYNC-C-001", "score": 0.6332394480705261, "sibling_score": 0.6332394480705261, "answer_score": null, "sibling_qid": "KOL-2021-10-2499-Q001", "sibling_text": "alt paralleling what all check before after method for checking phase seq all three", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Paralleling generators — procedure, conditions and practical checks", "cross_family": false } ] }, { "qid": "MUM-2026-09-3911-Q009", "text": "If phase angle difference?", "family": "Electrical - Generator & Alternator", "subtopic": "Synchronization", "tid": "MUM-2026-09-3911", "tray": "review", "candidates": [ { "answer_id": "SYNC-B-002", "score": 0.7482612729072571, "sibling_score": 0.7482612729072571, "answer_score": 0.5177015483379364, "sibling_qid": "NOI-2026-09-0015-Q007", "sibling_text": "phase angle", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Phase angle and the in-phase (12 o’clock) condition", "cross_family": false }, { "answer_id": "SYNC-B-003", "score": 0.7008617520332336, "sibling_score": 0.7008617520332336, "answer_score": null, "sibling_qid": "MUM-2026-09-3873-Q006", "sibling_text": "phase sequence and phase angle", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Phase sequence — what it is and how it is matched", "cross_family": false }, { "answer_id": "SYNC-C-001", "score": 0.6924048066139221, "sibling_score": 0.6924048066139221, "answer_score": null, "sibling_qid": "CHE-2026-03-0355-Q004", "sibling_text": "manual parallel what is pahase angle", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Paralleling generators — procedure, conditions and practical checks", "cross_family": false } ] }, { "qid": "MUM-2026-09-3912-Q003", "text": "Drive train complete ?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Air Fuel Ratio / Stoichiometry", "tid": "MUM-2026-09-3912", "tray": "new", "candidates": [ { "answer_id": "VIB-BAL-C-FINAL-1-001", "score": 0.5685058832168579, "sibling_score": 0.5685058832168579, "answer_score": null, "sibling_qid": "MUM-2025-08-1160-Q002", "sibling_text": "moment compensator complete", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "First- & Second-Order External Moments, Guide-Force Moments & Moment Compensators", "cross_family": false }, { "answer_id": "ENG-NOM-006", "score": 0.5068687200546265, "sibling_score": 0.5068687200546265, "answer_score": null, "sibling_qid": "CHE-2026-05-0585-Q001", "sibling_text": "main engine specification complete", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Short-form asks: SMC-C, LMC, and ME vs MC quickly", "cross_family": true }, { "answer_id": "TURBO-CS-P02-003", "score": 0.4962407648563385, "sibling_score": 0.4962407648563385, "answer_score": null, "sibling_qid": "KOC-2025-08-1937-Q007", "sibling_text": "ae tc overhaul complete", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharger overhaul — procedure and checks (incl. thrust bearing)", "cross_family": true } ] }, { "qid": "MUM-2026-09-3912-Q004", "text": "Type of failure in Bottom end bolts of connecting rod & draw SN curve for the same?", "family": "2-Stroke - Components (Other)", "subtopic": "Running Clearances (Bumping/Jumping)", "tid": "MUM-2026-09-3912", "tray": "new", "candidates": [ { "answer_id": "CRB-005", "score": 0.6157379150390625, "sibling_score": 0.6157379150390625, "answer_score": null, "sibling_qid": "MUM-2020-09-2127-Q004", "sibling_text": "connecting rod bolt design draw type of thread material", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Explain connecting rod bolt design: draw it, and state the type of thread, the material, why angle tightening is used, and why the bolt is pretensioned.", "cross_family": true }, { "answer_id": "AE-CRP-005", "score": 0.5990283489227295, "sibling_score": 0.5990283489227295, "answer_score": 0.5315587460994721, "sibling_qid": "KOC-2022-12-1799-Q012", "sibling_text": "weakest point of conrod bolts", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": true }, { "answer_id": "CFF-P02-001", "score": 0.5937389135360718, "sibling_score": 0.5937389135360718, "answer_score": null, "sibling_qid": "MUM-2026-06-3596-Q006", "sibling_text": "cylinder head stud which type of failure why fatigue failure", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Fatigue failure — what it is and where it occurs", "cross_family": true } ] }, { "qid": "MUM-2026-09-3912-Q005", "text": "What type of plate used in bilge keel ? ( i told him all about metallurgy but he wanted to listen to single bulb)", "family": "SOLAS", "subtopic": "Bilge Keel", "tid": "MUM-2026-09-3912", "tray": "new", "candidates": [ { "answer_id": "SHELL-PLT-B-001", "score": 0.605798065662384, "sibling_score": 0.605798065662384, "answer_score": null, "sibling_qid": "MUM-2026-09-3881-Q006", "sibling_text": "keel plate", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Sheer strake — location, why strengthened, deck-edge / gunwale connection", "cross_family": false }, { "answer_id": "KEEL-FRM-B-002", "score": 0.5832350254058838, "sibling_score": 0.5832350254058838, "answer_score": null, "sibling_qid": "KOL-2022-11-0703-Q002", "sibling_text": "types of keel i said flat bar bilge duct keel then he asked next year if you are going to built a new ship then which type of keel you will use among all this", "sibling_family": "", "via": "sibling", "answer_title": "Duct keel and keel arrangements", "cross_family": false }, { "answer_id": "BK-003", "score": 0.5750023126602173, "sibling_score": 0.5750023126602173, "answer_score": null, "sibling_qid": "MUM-2026-08-3837-Q006", "sibling_text": "bilge keel design features", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "What are the bilge-keel design, length, depth and protrusion requirements?", "cross_family": false } ] }, { "qid": "MUM-2026-09-3912-Q008", "text": "Static mixture ?", "family": "", "subtopic": "", "tid": "MUM-2026-09-3912", "tray": "new", "candidates": [ { "answer_id": "VIB-BAL-C-FINAL-1-003", "score": 0.5575541257858276, "sibling_score": 0.5575541257858276, "answer_score": null, "sibling_qid": "MUM-2026-03-2638-Q014S2", "sibling_text": "static balance", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Static and Dynamic Balancing of the Crankshaft / Shaft", "cross_family": false }, { "answer_id": "STAB-SD-C-002", "score": 0.5487191677093506, "sibling_score": 0.5487191677093506, "answer_score": 0.32247316688299177, "sibling_qid": "KOC-2023-06-0193-Q003", "sibling_text": "static stabilty", "sibling_family": "", "via": "sibling", "answer_title": "Static stability — what it is and what it quantifies", "cross_family": false }, { "answer_id": "CO2-CALC-P02-001", "score": 0.5407440662384033, "sibling_score": 0.5407440662384033, "answer_score": null, "sibling_qid": "KOC-2024-10-0422-Q004", "sibling_text": "what is mixing ratio", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 calculation inputs — filling ratio, bottle charge, water capacity, free-gas volume, mixing ratio", "cross_family": false } ] }, { "qid": "MUM-2026-09-3912-Q009", "text": "Eutectoid point ?(could not answer)", "family": "NDT & Material Testing", "subtopic": "Iron-Carbon Diagram", "tid": "MUM-2026-09-3912", "tray": "new", "candidates": [ { "answer_id": "ICD-065-002", "score": 0.5191922187805176, "sibling_score": 0.5191922187805176, "answer_score": 0.39815266728401183, "sibling_qid": "MUM-2023-12-1068-Q005", "sibling_text": "what is eutectic steel", "sibling_family": "Materials & Metallurgy", "via": "sibling", "answer_title": "What is eutectic steel?", "cross_family": true }, { "answer_id": "ICD-065-001", "score": 0.5064986348152161, "sibling_score": 0.5064986348152161, "answer_score": 0.3483861297369003, "sibling_qid": "MUM-2026-06-3396-Q001", "sibling_text": "iron carbide diagram not diagram just orally", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Draw and explain the iron-carbon diagram in full detail", "cross_family": false }, { "answer_id": "IND-CARD-A-001", "score": 0.48369723558425903, "sibling_score": 0.48369723558425903, "answer_score": null, "sibling_qid": "KOL-2020-03-3331-Q001", "sibling_text": "out of phase diagram", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Reading the power / draw card — what it tells you", "cross_family": true } ] }, { "qid": "MUM-2026-09-3912-Q013", "text": "Fair curve alignment method full, what is hysteresis ?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankshaft Deflection", "tid": "MUM-2026-09-3912", "tray": "new", "candidates": [ { "answer_id": "SHAFT-ALN-002", "score": 0.6014596223831177, "sibling_score": 0.6014596223831177, "answer_score": 0.3520605832338333, "sibling_qid": "MUM-2026-05-3343-Q007", "sibling_text": "shaft alignment type fair curve alignment and hysteresis in fair curve alignment", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Fair-curve alignment, influence numbers and propeller overhang", "cross_family": true }, { "answer_id": "CRK-DEFL-005", "score": 0.5493149161338806, "sibling_score": 0.5493149161338806, "answer_score": null, "sibling_qid": "CHE-2025-08-0419-Q003", "sibling_text": "fair curve alignment", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Plotting and interpreting the deflection curve", "cross_family": false }, { "answer_id": "XFMR-THY-C-001", "score": 0.5137497782707214, "sibling_score": 0.5137497782707214, "answer_score": 0.33393112272024156, "sibling_qid": "MUM-2025-12-1827-Q006", "sibling_text": "what is hysteresis", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Hysteresis loss in a transformer — cause, the factors it depends on, and how to cut it", "cross_family": true } ] }, { "qid": "MUM-2026-09-3912-Q015", "text": "How you will understand that fatigue has started in bottom end bolts ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Connecting Rod & Bolts", "tid": "MUM-2026-09-3912", "tray": "new", "candidates": [ { "answer_id": "CRB-002", "score": 0.6261574625968933, "sibling_score": 0.6261574625968933, "answer_score": 0.5052047789096832, "sibling_qid": "CHE-2025-11-0221-Q004", "sibling_text": "checks on conrod bolts", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What checks and tests are carried out on connecting rod bolts? Why NDT, why check elongation, what is the maximum limit, and which section tends to shear off?", "cross_family": false }, { "answer_id": "TBR-TT-P02-002", "score": 0.6183514595031738, "sibling_score": 0.6183514595031738, "answer_score": null, "sibling_qid": "MUM-2025-07-1148-Q004", "sibling_text": "tie bolts slack what will be the indications", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Checking tie rod tightness / slackness — stopped and running", "cross_family": true }, { "answer_id": "BEB-C-001", "score": 0.6175258755683899, "sibling_score": 0.6175258755683899, "answer_score": null, "sibling_qid": "KOL-2020-02-3328-Q003", "sibling_text": "bottom end bearing bulging and blacked why", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Defects and abnormal findings on a bottom end bearing — and what they indicate", "cross_family": false } ] }, { "qid": "MUM-2026-09-3912-Q018", "text": "What common electrode you use on ship ?", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-09-3912", "tray": "new", "candidates": [ { "answer_id": "LH-ELEC-004", "score": 0.639130711555481, "sibling_score": 0.639130711555481, "answer_score": null, "sibling_qid": "MUM-2023-11-2205-Q001", "sibling_text": "type of electrodes used on board before long sailing low h2 electrode", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "4. What types of welding electrode are used onboard, and the application of each?", "cross_family": true }, { "answer_id": "LH-ELEC-001", "score": 0.6263662576675415, "sibling_score": 0.6263662576675415, "answer_score": 0.46273815631866455, "sibling_qid": "MUM-2024-07-1085-Q005", "sibling_text": "where low hydogen electrode use in ship", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "1. Where are low-hydrogen electrodes used onboard?", "cross_family": true }, { "answer_id": "REF-CELL-003", "score": 0.6169666051864624, "sibling_score": 0.6169666051864624, "answer_score": null, "sibling_qid": "KOL-2018-05-2197-Q004", "sibling_text": "how reference electrode and anode attached to hull", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "Construction, material, fitting and location of the reference cell", "cross_family": true } ] }, { "qid": "MUM-2026-09-3912-Q021", "text": "What is blacksmith welding ?", "family": "Workshop & Welding", "subtopic": "Plasma / Arc / TIG / MIG", "tid": "MUM-2026-09-3912", "tray": "review", "candidates": [ { "answer_id": "WELD-B-009", "score": 0.6576730608940125, "sibling_score": 0.6576730608940125, "answer_score": 0.44938344359397886, "sibling_qid": "KOL-2025-10-2017-Q010", "sibling_text": "forging welding", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Special welding processes — submerged arc, spot, friction, forge, MMA and alloy welding", "cross_family": false }, { "answer_id": "WELD-B-001", "score": 0.6470577716827393, "sibling_score": 0.6470577716827393, "answer_score": 0.4347876667976379, "sibling_qid": "MUM-2026-05-3211-Q005", "sibling_text": "cast iron welding", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Welding & crack-repair of aluminium and cast iron, including metal stitching", "cross_family": false }, { "answer_id": "WBS-C-001", "score": 0.4323861449956894, "sibling_score": null, "answer_score": 0.4323861449956894, "sibling_qid": "", "sibling_text": "welding brazing and soldering what they are the shipboard processes and workshop safety welding fusion of the parent metal with or without filler brazing and soldering parent not melted a lower melting filler wets in by capillary action braze above 450 c solder below 450 c main shipboard processes manual metal arc smaw coated electrode oxy acetylene gas welding and cutting also tig mig mag and res", "sibling_family": "", "via": "answer_title", "answer_title": "Welding, brazing and soldering — what they are, the shipboard processes, and workshop safety", "cross_family": false } ] }, { "qid": "MUM-2026-09-3913-Q004", "text": "Boiler refectory type ?", "family": "Boilers - Construction & Components", "subtopic": "Boiler Types / Construction", "tid": "MUM-2026-09-3913", "tray": "review", "candidates": [ { "answer_id": "FURN-REF-001", "score": 0.6799352169036865, "sibling_score": 0.6799352169036865, "answer_score": 0.42545678615570065, "sibling_qid": "MUM-2026-09-3948-Q010", "sibling_text": "type of boiler refractory", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Boiler refractory — materials, types, composition and acidic / basic refractory", "cross_family": false }, { "answer_id": "BLR-CAP-BOILER-CAPACITY-RATING-005", "score": 0.6622017621994019, "sibling_score": 0.6622017621994019, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q009", "sibling_text": "type of boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "What are boiler pressure ratings or maximum working pressure?", "cross_family": false }, { "answer_id": "BLR-DRUM-002", "score": 0.6419227123260498, "sibling_score": 0.6419227123260498, "answer_score": null, "sibling_qid": "MUM-2026-06-3660-Q005", "sibling_text": "boiler type and boiler construction", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Steam-drum construction, material and plate manufacture, and construction-stage tests", "cross_family": false } ] }, { "qid": "MUM-2026-09-3913-Q006", "text": "CSM complete ?", "family": "Drydock & Underwater Surveys", "subtopic": "CSM / Continuous Survey", "tid": "MUM-2026-09-3913", "tray": "new", "candidates": [ { "answer_id": "CSM-214-004", "score": 0.5926031470298767, "sibling_score": 0.5926031470298767, "answer_score": 0.32099709808826443, "sibling_qid": "MUM-2026-05-3001-Q001", "sibling_text": "csm ss", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "CSM vs Special Survey vs CSH, other survey systems, and renewal", "cross_family": false }, { "answer_id": "CSM-214-003", "score": 0.5765647292137146, "sibling_score": 0.5765647292137146, "answer_score": null, "sibling_qid": "KOC-2023-08-0215-Q006", "sibling_text": "csm not by ce", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "What the Chief Engineer can credit, what he cannot, and how", "cross_family": false }, { "answer_id": "CSM-214-001", "score": 0.5402517914772034, "sibling_score": 0.5402517914772034, "answer_score": 0.3081673145294189, "sibling_qid": "KOC-2024-02-0298-Q005", "sibling_text": "explain csm", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "What CSM is, and why it is called “continuous”", "cross_family": false } ] }, { "qid": "MUM-2026-09-3913-Q011", "text": "heat number ?", "family": "Other Conventions", "subtopic": "IMDG Code", "tid": "MUM-2026-09-3913", "tray": "new", "candidates": [ { "answer_id": "FSH-DET-004", "score": 0.49865350127220154, "sibling_score": 0.49865350127220154, "answer_score": null, "sibling_qid": "KOC-2024-05-0337-Q010", "sibling_text": "heat detector regulation", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Heat detector locations onboard, and why heat detectors in ECR, workshop and machinery spaces", "cross_family": true }, { "answer_id": "EGTP-P02-007", "score": 0.4972880780696869, "sibling_score": 0.4972880780696869, "answer_score": null, "sibling_qid": "MUM-2026-07-3794-Q002", "sibling_text": "one unit temp high reasons", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "High Exhaust Temperature — One Unit vs All Units", "cross_family": true }, { "answer_id": "EXH-T-HI-001", "score": 0.49141383171081543, "sibling_score": 0.49141383171081543, "answer_score": null, "sibling_qid": "KOC-2023-01-0975-Q009", "sibling_text": "8 all unit temp high", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "All units exhaust temperature high — causes and actions", "cross_family": true } ] }, { "qid": "MUM-2026-09-3914-Q006", "text": "Piston ring clearance ?", "family": "2-Stroke - Components (Other)", "subtopic": "Piston Rings", "tid": "MUM-2026-09-3914", "tray": "review", "candidates": [ { "answer_id": "PRING-CLR-A-002", "score": 0.8417378067970276, "sibling_score": 0.8417378067970276, "answer_score": 0.6152854800224304, "sibling_qid": "KOC-2026-02-1103-Q004", "sibling_text": "piston ring clearences x butt clearence when taken i told intially when new rings are put x when but clearence increase as radial thickness reduces gap increases", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston-ring clearances and calibration — butt, axial, radial, wear limits", "cross_family": false }, { "answer_id": "AE-CRP-003", "score": 0.5806220173835754, "sibling_score": null, "answer_score": 0.5806220173835754, "sibling_qid": "", "sibling_text": "ae piston ring and groove checks piston material crown burning cracking erosion hot spots lands cracks skirt scuffing and ovality groove wear with a new ring plus feeler ring side clearance free gap and butt gap in the liner all maker limits", "sibling_family": "", "via": "answer_title", "answer_title": "AE piston, ring and groove checks; piston material", "cross_family": false }, { "answer_id": "PRING-B-001", "score": 0.5795247375965118, "sibling_score": null, "answer_score": 0.5795247375965118, "sibling_qid": "", "sibling_text": "piston ring inspection discard criteria judge every ring on four counts tension butt gap groove axial clearance radial wear plus visible damage spring action tension check measure the free gap of the used ring against a new ring lost free gap lost radial tension discard", "sibling_family": "", "via": "answer_title", "answer_title": "Piston-ring inspection & discard criteria", "cross_family": false } ] }, { "qid": "MUM-2026-09-3915-Q003", "text": "Governor specification?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Engine Nomenclature", "tid": "MUM-2026-09-3915", "tray": "review", "candidates": [ { "answer_id": "GOV-082-P01-002", "score": 0.6868825554847717, "sibling_score": 0.6868825554847717, "answer_score": null, "sibling_qid": "MUM-2026-09-3915-Q005", "sibling_text": "governor specification of ae", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Types of governor fitted on ships and how they differ", "cross_family": true }, { "answer_id": "PID-CTRL-001", "score": 0.6317624449729919, "sibling_score": 0.6317624449729919, "answer_score": null, "sibling_qid": "KOL-2026-09-4304-Q005", "sibling_text": "pid controller in governor", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What a PID controller is and how it works", "cross_family": true }, { "answer_id": "GOV-P02-002", "score": 0.6307999491691589, "sibling_score": 0.6307999491691589, "answer_score": null, "sibling_qid": "MUM-2026-05-3194-Q007", "sibling_text": "components of governor", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Electronic governor — components & parts", "cross_family": true } ] }, { "qid": "MUM-2026-09-3915-Q007", "text": "Bubbling and gas from the vent of expansion tank reason ?", "family": "Auxiliary Equipment", "subtopic": "Vent Heads / Air Vents", "tid": "MUM-2026-09-3915", "tray": "new", "candidates": [ { "answer_id": "VENT-HD-006", "score": 0.6413039565086365, "sibling_score": 0.6413039565086365, "answer_score": 0.48488053083419796, "sibling_qid": "KOL-2017-03-0065-Q003", "sibling_text": "explain do tank vent", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Tank vent / air-pipe arrangement, and why tanks require ventilation", "cross_family": false }, { "answer_id": "VENT-HD-004", "score": 0.6115474700927734, "sibling_score": 0.6115474700927734, "answer_score": 0.44040320813655853, "sibling_qid": "KOC-2025-12-1088-Q002", "sibling_text": "tank air vent working i explained ball type air vent", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Ball-float type tank air vent head — construction and working", "cross_family": false }, { "answer_id": "VENT-HD-005", "score": 0.5931277871131897, "sibling_score": 0.5931277871131897, "answer_score": null, "sibling_qid": "MUM-2023-11-0141-Q004", "sibling_text": "what to check in tank vents", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Inspections and maintenance on tank vent heads", "cross_family": false } ] }, { "qid": "MUM-2026-09-3916-Q002", "text": "SOLAS Chapter 11 ?", "family": "SOLAS - General (HOLD)", "subtopic": "Solas Chapter 12 - Bulk", "tid": "MUM-2026-09-3916", "tray": "new", "candidates": [ { "answer_id": "SOLAS-CH-012", "score": 0.6252473592758179, "sibling_score": 0.6252473592758179, "answer_score": null, "sibling_qid": "MUM-2026-04-0917-Q002", "sibling_text": "solas chapter 11 1 11 2", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS XI-1, XI-2 and XIII - safety, security and audit", "cross_family": true }, { "answer_id": "SOLAS-CH-015", "score": 0.6051701307296753, "sibling_score": 0.6051701307296753, "answer_score": 0.32440571784973143, "sibling_qid": "MUM-2025-03-0242-Q006", "sibling_text": "solas chap 11", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS chapters overview - current count and scope", "cross_family": true }, { "answer_id": "SOLAS-XII-BC-002", "score": 0.5690826773643494, "sibling_score": 0.5690826773643494, "answer_score": null, "sibling_qid": "MUM-2024-09-0209-Q001", "sibling_text": "solas chapter xii", "sibling_family": "SOLAS - General (HOLD)", "via": "sibling", "answer_title": "Explain SOLAS Chapter XII — the additional safety measures for bulk carriers", "cross_family": false } ] }, { "qid": "MUM-2026-09-3916-Q005", "text": "MARPOL Annex I Certificates ?", "family": "MARPOL - Annex II (NLS)", "subtopic": "Chemical Cargo / P&A Manual", "tid": "MUM-2026-09-3916", "tray": "review", "candidates": [ { "answer_id": "CHEM-PA-004", "score": 0.7527458071708679, "sibling_score": 0.7527458071708679, "answer_score": null, "sibling_qid": "KOL-2021-01-0458-Q004", "sibling_text": "marpol annex 2 and 3 certificates", "sibling_family": "MARPOL - Annex II (NLS)", "via": "sibling", "answer_title": "Certificates, documents and records under Annex II", "cross_family": false }, { "answer_id": "AVICERT-006", "score": 0.750984251499176, "sibling_score": 0.750984251499176, "answer_score": 0.5547002136707305, "sibling_qid": "KOL-2018-04-0169-Q004", "sibling_text": "certificates in marpol", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What certificates are carried on board under all the MARPOL annexes, Annex I to Annex VI?", "cross_family": true }, { "answer_id": "CERT-LIST-P03-001", "score": 0.7404879927635193, "sibling_score": 0.7404879927635193, "answer_score": 0.6266925692558288, "sibling_qid": "MUM-2025-07-0353-Q003", "sibling_text": "all certificates under marpol", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "MARPOL, AFS & annex-specific certificates", "cross_family": true } ] }, { "qid": "MUM-2026-09-3917-Q004", "text": "Why is HV 1.1kv,3.3kv.6.6kv etc ?", "family": "Electrical - High Voltage", "subtopic": "", "tid": "MUM-2026-09-3917", "tray": "new", "candidates": [ { "answer_id": "HV-SYS-P02-001", "score": 0.6237519979476929, "sibling_score": 0.6237519979476929, "answer_score": null, "sibling_qid": "KOC-2025-07-1550-Q001", "sibling_text": "why high voltage are 1 1 3 3", "sibling_family": "", "via": "sibling", "answer_title": "Why high voltage is used onboard ships", "cross_family": false }, { "answer_id": "T038-P01-001", "score": 0.5361765623092651, "sibling_score": 0.5361765623092651, "answer_score": null, "sibling_qid": "KOL-2020-02-2374-Q001", "sibling_text": "what is hv and lv why above 1000v it is called hv", "sibling_family": "", "via": "sibling", "answer_title": "What is a marine high-voltage system, and what counts as HV onboard?", "cross_family": false }, { "answer_id": "HV-SYS-P06-002", "score": 0.5236388444900513, "sibling_score": 0.5236388444900513, "answer_score": null, "sibling_qid": "MUM-2025-10-1738-Q001", "sibling_text": "power system kv phase 3 frequency 60hz prime mover driven alternator hv system 6 6kv", "sibling_family": "", "via": "sibling", "answer_title": "How HV is generated onboard and how the HV alternator is arranged", "cross_family": false } ] }, { "qid": "MUM-2026-09-3917-Q006", "text": "Navigational lamps types and regulations ?", "family": "Electrical - Generator & Alternator", "subtopic": "AVR / Excitation", "tid": "MUM-2026-09-3917", "tray": "review", "candidates": [ { "answer_id": "LT-SRC-007", "score": 0.6766257882118225, "sibling_score": 0.6766257882118225, "answer_score": null, "sibling_qid": "KOC-2026-02-1708-Q006", "sibling_text": "navigational ckt where supply coming from regulations where all are the navigational lights", "sibling_family": "", "via": "sibling", "answer_title": "What is the navigation-light supply source, voltage and emergency arrangement?", "cross_family": false }, { "answer_id": "LT-SRC-010", "score": 0.6602479219436646, "sibling_score": 0.6602479219436646, "answer_score": 0.5059886008501052, "sibling_qid": "KOL-2022-09-2607-Q002", "sibling_text": "regulations about navigation lights and how many lights what are the special arrangements given", "sibling_family": "", "via": "sibling", "answer_title": "What are the important safeties and special features of navigation lights?", "cross_family": false }, { "answer_id": "LT-SRC-006", "score": 0.6590478420257568, "sibling_score": 0.6590478420257568, "answer_score": 0.5601560115814209, "sibling_qid": "KOC-2022-02-1173-Q005", "sibling_text": "requirements of navigation lights what type of bulb used", "sibling_family": "", "via": "sibling", "answer_title": "Bulb, wattage, arc and visibility of navigation lights", "cross_family": false } ] }, { "qid": "MUM-2026-09-3917-Q007", "text": "How to install new liner, what all certificates to check before installing ?", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "MUM-2026-09-3917", "tray": "new", "candidates": [ { "answer_id": "CYL-LINER-P03-005", "score": 0.6107771992683411, "sibling_score": 0.6107771992683411, "answer_score": 0.37602369338274, "sibling_qid": "MUM-2026-06-3537-Q005", "sibling_text": "what certificates are present for new liner if we have to install new liner", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Spare cylinder liner — what checks and certificates before you fit it?", "cross_family": false }, { "answer_id": "LL-CONV-P04-002", "score": 0.5674506425857544, "sibling_score": 0.5674506425857544, "answer_score": null, "sibling_qid": "MUM-2025-06-0328-Q008", "sibling_text": "load line certificates", "sibling_family": "", "via": "sibling", "answer_title": "Load Line Convention, certificates, assigning authority and detention risk", "cross_family": false }, { "answer_id": "CERT-LIST-P02-002", "score": 0.4774170517921448, "sibling_score": 0.4774170517921448, "answer_score": null, "sibling_qid": "KOL-2019-10-0340-Q002", "sibling_text": "doc audit gng on name allcertiicates that will be checked on ship", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Document of Compliance, Certificate and Statement of Compliance", "cross_family": true } ] }, { "qid": "MUM-2026-09-3917-Q008", "text": "How replace damaged bilge keel ?", "family": "Ship Construction & Stability", "subtopic": "Bilge Keel", "tid": "MUM-2026-09-3917", "tray": "new", "candidates": [ { "answer_id": "BK-004", "score": 0.6173277497291565, "sibling_score": 0.6173277497291565, "answer_score": 0.4882186263799667, "sibling_qid": "CHE-2026-04-0169-Q008S2", "sibling_text": "how bilge keel is fitted and what arrangement is given if the bilge keel get rupture or tore as it fitted on the ship hull it may damage the hull know many cross questions", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "How is a bilge keel attached to the hull, and how is hull cracking or rupture controlled?", "cross_family": false }, { "answer_id": "BK-003", "score": 0.5718955993652344, "sibling_score": 0.5718955993652344, "answer_score": null, "sibling_qid": "KOC-2026-03-0886-Q007", "sibling_text": "what happens if bilge keel projected out", "sibling_family": "", "via": "sibling", "answer_title": "What are the bilge-keel design, length, depth and protrusion requirements?", "cross_family": false }, { "answer_id": "BK-001", "score": 0.5518753528594971, "sibling_score": 0.5518753528594971, "answer_score": null, "sibling_qid": "KOC-2026-05-2128-Q003", "sibling_text": "bilge keel draw and explain", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "What is a bilge keel and what is its purpose?", "cross_family": false } ] }, { "qid": "MUM-2026-09-3917-Q010", "text": "Tie rod in ME vs MC ..how to remove broken tie rod. ?", "family": "Workshop & Welding", "subtopic": "Broken Bolt Removal", "tid": "MUM-2026-09-3917", "tray": "review", "candidates": [ { "answer_id": "TIE-ROD-C-002", "score": 0.6769052147865295, "sibling_score": 0.6769052147865295, "answer_score": 0.5404842138290405, "sibling_qid": "MUM-2026-05-3000-Q002", "sibling_text": "tie rod broken how to remove", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Removing and renewing a broken tie rod — the bottom-piece problem", "cross_family": true }, { "answer_id": "TBR-TT-P02-001", "score": 0.42028237581253053, "sibling_score": null, "answer_score": 0.42028237581253053, "sibling_qid": "", "sibling_text": "tie rod tightening hydraulic tensioning procedure hydraulic pre tension only never a spanner or torque jacks fit over the nuts and stretch the rod before tensioning take crankshaft deflection then slacken the pinching screws and any bearing jacking bolts so the rod can elongate freely a mid span clamped rod stretches unevenly and reads false", "sibling_family": "", "via": "answer_title", "answer_title": "Tie rod tightening / hydraulic tensioning procedure", "cross_family": false }, { "answer_id": "TIE-ROD-C-001", "score": 0.40815692245960233, "sibling_score": null, "answer_score": 0.40815692245960233, "sibling_qid": "", "sibling_text": "detecting a broken or slack tie rod signs and effects of running on function recap the tie rods clamp bedplate a frame and entablature together in compression and carry the firing load back to the bedplate pre tensioned hydraulically so the castings and fitted location bolts are not intended to carry fatigue tension watch symptoms what the examiner wants a load varying knock from the structure red", "sibling_family": "", "via": "answer_title", "answer_title": "Detecting a broken or slack tie rod — signs, and effects of running on", "cross_family": false } ] }, { "qid": "MUM-2026-09-3918-Q002", "text": "Explain MARPOL-Annex IV?\n Explain the working of the Sewage Treatment Plant (STP)?", "family": "MARPOL - Annex IV (Sewage)", "subtopic": "Sewage Discharge", "tid": "MUM-2026-09-3918", "tray": "review", "candidates": [ { "answer_id": "SEW-DISCH-004", "score": 0.6546593308448792, "sibling_score": 0.6546593308448792, "answer_score": null, "sibling_qid": "MUM-2022-07-0021-Q005", "sibling_text": "marpol annex 4 requirement and tests on sewage treatment plant", "sibling_family": "MARPOL - Annex IV (Sewage)", "via": "sibling", "answer_title": "4. Annex IV requirements, equipment, documents and recent amendments", "cross_family": false }, { "answer_id": "STP-SEW-010", "score": 0.6436688303947449, "sibling_score": 0.6436688303947449, "answer_score": null, "sibling_qid": "KOL-2022-05-0633-Q004", "sibling_text": "type of stp biological and chemical sewage explanation and vaccum sewage system", "sibling_family": "MARPOL - Annex IV (Sewage)", "via": "sibling", "answer_title": "The vacuum sewage system", "cross_family": false }, { "answer_id": "STP-SEW-009", "score": 0.6418971419334412, "sibling_score": 0.6418971419334412, "answer_score": null, "sibling_qid": "KOL-2021-10-1628-Q004", "sibling_text": "sewage treatment plant used on ship type regulations", "sibling_family": "MARPOL - Annex IV (Sewage)", "via": "sibling", "answer_title": "Types of sewage treatment plant", "cross_family": false } ] }, { "qid": "MUM-2026-09-3918-Q004", "text": "What are the precautions for entering the CO₂ room? What checks you do in the CO₂ room?", "family": "Cargo Ops - Tankers", "subtopic": "Pump Room Safety", "tid": "MUM-2026-09-3918", "tray": "new", "candidates": [ { "answer_id": "CO2-SYS-002", "score": 0.6381006240844727, "sibling_score": 0.6381006240844727, "answer_score": null, "sibling_qid": "KOL-2018-06-0184-Q002", "sibling_text": "co2 room u entered what important thing you will check", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 maintenance, inspection, testing and survey routines", "cross_family": true }, { "answer_id": "ESE-P02-008", "score": 0.6159969568252563, "sibling_score": 0.6159969568252563, "answer_score": 0.485517680644989, "sibling_qid": "KOL-2025-09-1067-Q005", "sibling_text": "checks prior to entry into enclosed space", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "ESE-P02-08. Before, during and after: confirming a space is safe to enter", "cross_family": true }, { "answer_id": "PUMPRM-B-001", "score": 0.6071934700012207, "sibling_score": 0.6071934700012207, "answer_score": 0.49593732953071595, "sibling_qid": "KOC-2026-02-1716-Q014", "sibling_text": "what all will check before entering pump room", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Entering the cargo pump room - precautions and permit", "cross_family": false } ] }, { "qid": "MUM-2026-09-3919-Q001", "text": "(FN-5)", "family": "", "subtopic": "", "tid": "MUM-2026-09-3919", "tray": "new", "candidates": [ { "answer_id": "CTRL-001", "score": 0.5578306913375854, "sibling_score": 0.5578306913375854, "answer_score": null, "sibling_qid": "KOL-2021-12-2522-Q005", "sibling_text": "cascade control system full got fn 5", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Cascade control — how it works", "cross_family": false }, { "answer_id": "GZKN-P02-001", "score": 0.552358865737915, "sibling_score": 0.552358865737915, "answer_score": null, "sibling_qid": "KOL-2019-01-0254-Q003", "sibling_text": "kn curve 5", "sibling_family": "", "via": "sibling", "answer_title": "Cross curves of stability (KN curves) — draw, explain, and use to build the GZ curve", "cross_family": false }, { "answer_id": "FP-OVHL-005", "score": 0.5329746007919312, "sibling_score": 0.5329746007919312, "answer_score": null, "sibling_qid": "KOL-2018-04-1367-Q006", "sibling_text": "5 ae fo p p 0 setting", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel pump zero setting — what it is, why, and how to set it", "cross_family": false } ] }, { "qid": "MUM-2026-09-3920-Q002", "text": "BNWAS ?", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "MUM-2026-09-3920", "tray": "new", "candidates": [ { "answer_id": "LO-TEST-P01-004", "score": 0.5252701640129089, "sibling_score": 0.5252701640129089, "answer_score": null, "sibling_qid": "KOL-2018-09-1418-Q003", "sibling_text": "what is bn tbn tan sn", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "TBN, BN, TAN, SAN and the SAE grade", "cross_family": true }, { "answer_id": "BWMS-C-001", "score": 0.5223247408866882, "sibling_score": 0.5223247408866882, "answer_score": null, "sibling_qid": "MUM-2025-10-0517-Q002", "sibling_text": "bwts", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Ballast water management vs treatment — and why a BWTS", "cross_family": true }, { "answer_id": "BDN-001-001", "score": 0.5009699463844299, "sibling_score": 0.5009699463844299, "answer_score": null, "sibling_qid": "MUM-2023-08-0118-Q006", "sibling_text": "content of bdn", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "BDN: what it is and what it must contain", "cross_family": true } ] }, { "qid": "MUM-2026-09-3920-Q003", "text": "Hyper mist system complete why installed only for selected machineries ?", "family": "SOLAS - Fire Safety", "subtopic": "Sprinkler / Water Mist / Hi-Fog", "tid": "MUM-2026-09-3920", "tray": "new", "candidates": [ { "answer_id": "FIRE-P01-01", "score": 0.5592471957206726, "sibling_score": 0.5592471957206726, "answer_score": 0.36767956912517546, "sibling_qid": "MUM-2024-11-2777-Q003", "sibling_text": "hypermist all componenets and system working", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist / water-mist system — draw and explain the machinery-space arrangement and normal working", "cross_family": false }, { "answer_id": "FIRE-P01-04", "score": 0.534205973148346, "sibling_score": 0.534205973148346, "answer_score": 0.3390738934278488, "sibling_qid": "MUM-2024-09-0210-Q004", "sibling_text": "why hypermist system not for entire engine room", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist — protected areas, machinery coverage, and why it is not whole-engine-room flooding", "cross_family": false }, { "answer_id": "FIRE-P02-01", "score": 0.5164493918418884, "sibling_score": 0.5164493918418884, "answer_score": 0.33283685743808744, "sibling_qid": "CHE-2026-02-0105-Q013", "sibling_text": "hypermist system complete working and requirements", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist — SOLAS/FSS basis and ECR/machinery-space arrangement", "cross_family": false } ] }, { "qid": "MUM-2026-09-3920-Q004", "text": "Bilge discharge by emergency bilge suction SOLAS regulations ?", "family": "MARPOL - Annex I (Oil)", "subtopic": "Oil Discharge Criteria", "tid": "MUM-2026-09-3920", "tray": "review", "candidates": [ { "answer_id": "PCD-P04-02", "score": 0.6764613389968872, "sibling_score": 0.6764613389968872, "answer_score": 0.5712674260139465, "sibling_qid": "KOL-2026-09-4298-Q003", "sibling_text": "emergency bilge suction regulation", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "02. Emergency bilge suction — the bilge injection valve, testing and SOLAS requirements", "cross_family": true }, { "answer_id": "OWS-15PPM-005", "score": 0.6552307605743408, "sibling_score": 0.6552307605743408, "answer_score": 0.5093927621841431, "sibling_qid": "CHE-2025-08-0022-Q006", "sibling_text": "bilge pump out procedures", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "ODC-002", "score": 0.6500189900398254, "sibling_score": 0.6500189900398254, "answer_score": null, "sibling_qid": "KOL-2026-03-1206-Q004", "sibling_text": "bilge discharge criteria", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Machinery-space (engine room) bilge discharge criteria — outside a special area", "cross_family": false } ] }, { "qid": "MUM-2026-09-3920-Q007", "text": "SCR and firing angle ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Thyristor / SCR", "tid": "MUM-2026-09-3920", "tray": "new", "candidates": [ { "answer_id": "SCR-306-A-003", "score": 0.4947502613067627, "sibling_score": 0.4947502613067627, "answer_score": 0.3896563738584518, "sibling_qid": "MUM-2026-02-1923-Q010", "sibling_text": "thyrister gate signal firing angle", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Gate signal, triggering and firing-angle control", "cross_family": false }, { "answer_id": "SCR-306-B-005", "score": 0.47187161445617676, "sibling_score": 0.47187161445617676, "answer_score": 0.32633839547634125, "sibling_qid": "CHE-2026-05-0603-Q016", "sibling_text": "how is thyristor used in avr ans trigger voltage and firing angle internal deciding", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Thyristor / SCR in an AVR excitation circuit", "cross_family": false }, { "answer_id": "ANG-ENC-001", "score": 0.4632093906402588, "sibling_score": 0.4632093906402588, "answer_score": null, "sibling_qid": "MUM-2023-11-1066-Q008", "sibling_text": "angle encoder function", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Purpose of the angle encoder on an electronically controlled main engine", "cross_family": false } ] }, { "qid": "MUM-2026-09-3921-Q002", "text": "3 pin socket how check is that working in old ship ?", "family": "Electrical - Motors & Starters", "subtopic": "Type of Starter Decision", "tid": "MUM-2026-09-3921", "tray": "new", "candidates": [ { "answer_id": "AIR-GAP-002", "score": 0.5504006147384644, "sibling_score": 0.5504006147384644, "answer_score": null, "sibling_qid": "MUM-2025-08-1607-Q020", "sibling_text": "how will you check it plastic feeler gauge 2 3 mm accordingly to my ship", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "AG-2 — Checking and measuring the air gap", "cross_family": false }, { "answer_id": "EARTH-NER-A-003", "score": 0.545831024646759, "sibling_score": 0.545831024646759, "answer_score": 0.4330045998096466, "sibling_qid": "KOL-2021-02-3379-Q004", "sibling_text": "in a 3 pin electrical socket how will you come to know which pin is live and which one is neutral suppose you don t have a tester then how will you come to know don t know why he asked an electrical question in function 6 but hey who s complaining", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Three-pin plug / socket — live, neutral and earth pins", "cross_family": true }, { "answer_id": "GMC-583-B-006", "score": 0.5327597856521606, "sibling_score": 0.5327597856521606, "answer_score": null, "sibling_qid": "MUM-2026-03-2022-Q004", "sibling_text": "workshop 3 pin wire how to check ac or dc", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Unmarked wires in the workshop — is it AC or DC?", "cross_family": true } ] }, { "qid": "MUM-2026-09-3921-Q004", "text": "Hydrophone cut in cut off working cross 1 bar how much mm of water ?", "family": "Automation & Controls", "subtopic": "Temperature / Pressure / Level Sensor", "tid": "MUM-2026-09-3921", "tray": "new", "candidates": [ { "answer_id": "AII-DISCH-004", "score": 0.5060521364212036, "sibling_score": 0.5060521364212036, "answer_score": null, "sibling_qid": "KOC-2025-04-0586-Q005", "sibling_text": "depth of dischage connection below waterline i said 4 5 m below he didn t say anything", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Annex II requirements for the discharge outlet position and the discharge rate", "cross_family": true }, { "answer_id": "TPL-SENS-B-002", "score": 0.49503856897354126, "sibling_score": 0.49503856897354126, "answer_score": null, "sibling_qid": "KOC-2025-02-1485-Q006", "sibling_text": "water transducer working", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Sensors, transducers & transmitters — and why 4–20 mA", "cross_family": false }, { "answer_id": "IWS-002", "score": 0.48059847950935364, "sibling_score": 0.48059847950935364, "answer_score": null, "sibling_qid": "MUM-2025-12-2518-Q003", "sibling_text": "in water survey how thickness is measured", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "In-water survey procedure as 2/E — checks, equipment, and thickness measurement", "cross_family": true } ] }, { "qid": "MUM-2026-09-3922-Q001", "text": "Type of ship sailed?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-09-3922", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8456622958183289, "sibling_score": 0.8456622958183289, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.844673752784729, "sibling_score": 0.844673752784729, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7923667430877686, "sibling_score": 0.7923667430877686, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "MUM-2026-09-3923-Q002", "text": "Why negative (inductive loads)?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "", "tid": "MUM-2026-09-3923", "tray": "new", "candidates": [ { "answer_id": "PF-A-002", "score": 0.5140810012817383, "sibling_score": 0.5140810012817383, "answer_score": null, "sibling_qid": "KOC-2023-04-1254-Q004", "sibling_text": "what is inductive load", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Lagging, leading, unity, resistive, inductive, capacitive — and DC", "cross_family": true }, { "answer_id": "PWR-ARA-002", "score": 0.5015313029289246, "sibling_score": 0.5015313029289246, "answer_score": 0.39810088872909544, "sibling_qid": "KOC-2023-10-1294-Q004", "sibling_text": "how does an kvar get increased he wants to know the basic of how an inductive load lags the current and the kvar gets increased", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Reactive power — why it arises, and how to reduce or adjust it", "cross_family": false }, { "answer_id": "TC-A-008", "score": 0.4923475980758667, "sibling_score": 0.4923475980758667, "answer_score": 0.40857163220643994, "sibling_qid": "KOL-2025-06-2790-Q006", "sibling_text": "what is an inductor key ans coiled conductor which resists change in current through it what s the advantage and disadvantage in hv system", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "The inductor and the filter choke — and inductance in an HV system", "cross_family": false } ] }, { "qid": "MUM-2026-09-3923-Q003", "text": "When can it be theoretically zero (when there are only inductive loads)", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Active / Reactive / Apparent Power", "tid": "MUM-2026-09-3923", "tray": "new", "candidates": [ { "answer_id": "PF-A-002", "score": 0.4949924051761627, "sibling_score": 0.4949924051761627, "answer_score": 0.38274753391742705, "sibling_qid": "MUM-2025-09-1700-Q002", "sibling_text": "if the load is purely inductive what will be the power factor", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Lagging, leading, unity, resistive, inductive, capacitive — and DC", "cross_family": true }, { "answer_id": "PWR-ARA-002", "score": 0.47607728838920593, "sibling_score": 0.47607728838920593, "answer_score": 0.38653466403484343, "sibling_qid": "KOC-2023-10-1294-Q004", "sibling_text": "how does an kvar get increased he wants to know the basic of how an inductive load lags the current and the kvar gets increased", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Reactive power — why it arises, and how to reduce or adjust it", "cross_family": false }, { "answer_id": "FAR-EMI-001", "score": 0.4674360156059265, "sibling_score": 0.4674360156059265, "answer_score": null, "sibling_qid": "KOL-2021-04-2444-Q001", "sibling_text": "int chaki ext maybe banerjee or chakra 1 electromagnetic induction and application 2 intrinsically safe ckt 3 why gravity reduces of lead acid battery while discharging", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Faraday's laws of electromagnetic induction and Lenz's law — and their shipboard use", "cross_family": false } ] }, { "qid": "MUM-2026-09-3923-Q007", "text": "What is I controller and what it does (achieves set point and makes error zero)?", "family": "Automation & Controls", "subtopic": "PID / Two-Step / Ratio Control", "tid": "MUM-2026-09-3923", "tray": "new", "candidates": [ { "answer_id": "PID-CTRL-002", "score": 0.6259939670562744, "sibling_score": 0.6259939670562744, "answer_score": 0.5119353830814362, "sibling_qid": "KOC-2024-08-1002-Q006", "sibling_text": "integral and derivative controller working", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Proportional, integral and derivative actions", "cross_family": false }, { "answer_id": "CTRL-TL-003", "score": 0.6057490706443787, "sibling_score": 0.6057490706443787, "answer_score": null, "sibling_qid": "MUM-2026-01-0676-Q015", "sibling_text": "integral controller what it does", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Feedback, open/closed loop, offset, hysteresis, P-I-D action", "cross_family": false }, { "answer_id": "PID-CTRL-001", "score": 0.5953587889671326, "sibling_score": 0.5953587889671326, "answer_score": 0.5144367635250091, "sibling_qid": "KOL-2024-10-2737-Q001", "sibling_text": "pid controller working", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "What a PID controller is and how it works", "cross_family": false } ] }, { "qid": "MUM-2026-09-3923-Q008", "text": "What to adjust if too much hunting ?(adjust D it applies brake and prevents fluctuations?", "family": "Automation & Controls", "subtopic": "PID / Two-Step / Ratio Control", "tid": "MUM-2026-09-3923", "tray": "new", "candidates": [ { "answer_id": "AUC-CTL-02", "score": 0.5994728803634644, "sibling_score": 0.5994728803634644, "answer_score": null, "sibling_qid": "KOC-2024-02-1331-Q005", "sibling_text": "pid how to adjust", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "PID tuning and dynamic response", "cross_family": false }, { "answer_id": "GOV-P03-002", "score": 0.5794807076454163, "sibling_score": 0.5794807076454163, "answer_score": null, "sibling_qid": "CHE-2026-09-3919-Q003", "sibling_text": "speed droop and how to adjust manually", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Droop, isochronous operation and load sharing", "cross_family": false }, { "answer_id": "GOV-P03-001", "score": 0.5726063251495361, "sibling_score": 0.5726063251495361, "answer_score": null, "sibling_qid": "KOL-2023-12-1768-Q006", "sibling_text": "deadband in governor and how to reduce it", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Dead band and sensitivity of a governor", "cross_family": false } ] }, { "qid": "MUM-2026-09-3924-Q002", "text": "Type of ME and AE ?", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-09-3924", "tray": "new", "candidates": [ { "answer_id": "AEME-DIFF-001", "score": 0.6245595216751099, "sibling_score": 0.6245595216751099, "answer_score": null, "sibling_qid": "MUM-2025-05-2295-Q004", "sibling_text": "types of me and ae worked on", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": true }, { "answer_id": "ENG-NOM-001", "score": 0.5566588044166565, "sibling_score": 0.5566588044166565, "answer_score": 0.2738756239414215, "sibling_qid": "NOI-2026-09-0008-Q002", "sibling_text": "me and ae type and nomenclature", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Nomenclature of ME and AE (asked together)", "cross_family": true }, { "answer_id": "ENG-NOM-005", "score": 0.534561038017273, "sibling_score": 0.534561038017273, "answer_score": null, "sibling_qid": "MUM-2026-09-3915-Q001", "sibling_text": "type of engine me and ae", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": false } ] }, { "qid": "MUM-2026-09-3924-Q003", "text": "Difference between Aux engine and Main engine Structural and constructional ?", "family": "Ship Construction", "subtopic": "", "tid": "MUM-2026-09-3924", "tray": "new", "candidates": [ { "answer_id": "EMD-MEAE-001", "score": 0.5897706747055054, "sibling_score": 0.5897706747055054, "answer_score": null, "sibling_qid": "MUM-2026-03-1294-Q007", "sibling_text": "what is the difference in the foundation of main engine and auxiliary engine both are fitted to the ship s hull what is the difference in their foundation", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "1. ME vs AE foundation — rigid chocking against resilient mounting", "cross_family": true }, { "answer_id": "AEME-DIFF-001", "score": 0.5792249441146851, "sibling_score": 0.5792249441146851, "answer_score": 0.5572449624538421, "sibling_qid": "MUM-2026-03-2642-Q012", "sibling_text": "type of main and aux engine", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": true }, { "answer_id": "DBTB-A-002", "score": 0.5424613952636719, "sibling_score": 0.5424613952636719, "answer_score": null, "sibling_qid": "KOL-2025-12-1140-Q003", "sibling_text": "main engine double bottom construction", "sibling_family": "", "via": "sibling", "answer_title": "Double-bottom tanks: purpose, advantages, disadvantages and stability effect", "cross_family": false } ] }, { "qid": "MUM-2026-09-3924-Q005", "text": "What is Nox?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "NOx Limits / Tier", "tid": "MUM-2026-09-3924", "tray": "new", "candidates": [ { "answer_id": "A6-NSEC-002", "score": 0.5681707262992859, "sibling_score": 0.5681707262992859, "answer_score": 0.256995815038681, "sibling_qid": "KOL-2020-06-0410-Q003", "sibling_text": "nox technical code", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "NOx Technical Code vs NOx Technical File", "cross_family": false }, { "answer_id": "EECS-016", "score": 0.562516987323761, "sibling_score": 0.562516987323761, "answer_score": null, "sibling_qid": "CHE-2026-09-3907-Q003", "sibling_text": "nox technical code explain", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "16. Explain the NOx Technical File, EEDI and SEEMP", "cross_family": false }, { "answer_id": "AV6-P02-01", "score": 0.35685058087110516, "sibling_score": null, "answer_score": 0.35685058087110516, "sibling_qid": "", "sibling_text": "nox environmental and health effects and why marpol regulates it nox family of nitrogen oxides mainly no and no2 formed as thermal nox zeldovich mechanism significant above roughly 1600 c and dominant well above 1800 c atmospheric harm photochemical smog and ground level ozone nox vocs sunlight", "sibling_family": "", "via": "answer_title", "answer_title": "NOx — environmental and health effects, and why MARPOL regulates it", "cross_family": false } ] }, { "qid": "MUM-2026-09-3924-Q007", "text": "How to reduce nox?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "NOx Limits / Tier", "tid": "MUM-2026-09-3924", "tray": "new", "candidates": [ { "answer_id": "AV6-P01-04", "score": 0.6150292158126831, "sibling_score": 0.6150292158126831, "answer_score": 0.3390945643186569, "sibling_qid": "MUM-2024-04-0173-Q008", "sibling_text": "sox nox how to reduce", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Compare how SOx and NOx are formed on a marine engine and the principal routes to reduce each.", "cross_family": false }, { "answer_id": "A6-NSEC-003", "score": 0.5740610957145691, "sibling_score": 0.5740610957145691, "answer_score": 0.32354812920093534, "sibling_qid": "MUM-2026-02-2571-Q001", "sibling_text": "how to reduce nox", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "NOx — formation, limits & reduction (SCR / EGR)", "cross_family": false }, { "answer_id": "AIRP-188-007", "score": 0.5246344208717346, "sibling_score": 0.5246344208717346, "answer_score": null, "sibling_qid": "KOL-2025-01-0906-Q003", "sibling_text": "nox and sox reduction ways", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "NOx and SOx control under Annex VI (Reg 13 & 14) — limits and abatement", "cross_family": false } ] }, { "qid": "MUM-2026-09-3924-Q016", "text": "AE bottom end bearing bolts construction ?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "Decarb Checks / Connecting Rod / Bottom End Bearing", "tid": "MUM-2026-09-3924", "tray": "new", "candidates": [ { "answer_id": "AE-CRP-007", "score": 0.6268811821937561, "sibling_score": 0.6268811821937561, "answer_score": null, "sibling_qid": "KOL-2020-09-3347-Q001", "sibling_text": "a e con rod bottom end bearing bedding procedure change and tightening procedure", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "AE big-end / bottom-end bearing — inspection, bedding, nip and crush", "cross_family": false }, { "answer_id": "AE-MB-002", "score": 0.620410680770874, "sibling_score": 0.620410680770874, "answer_score": null, "sibling_qid": "KOL-2026-02-3912-Q002", "sibling_text": "ae main bearing bottom end removal", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Removing the lower shell / bottom half of an AE main bearing", "cross_family": false }, { "answer_id": "AECR-651-003", "score": 0.6161226630210876, "sibling_score": 0.6161226630210876, "answer_score": 0.4849768429994583, "sibling_qid": "MUM-2025-06-2313-Q005", "sibling_text": "ae conrod check and criteria to change bottom end bolts and tightening procedure", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "What are the criteria to change the bottom-end bolts on an AE connecting rod, and what is the tightening procedure?", "cross_family": false } ] }, { "qid": "MUM-2026-09-3926-Q001", "text": "Type of engine on your last ship ?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-09-3926", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.7246246933937073, "sibling_score": 0.7246246933937073, "answer_score": null, "sibling_qid": "MUM-2026-04-1007-Q002", "sibling_text": "type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.7100246548652649, "sibling_score": 0.7100246548652649, "answer_score": null, "sibling_qid": "MUM-2026-04-2675-Q006S5", "sibling_text": "type of ship and main engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ETP-344-P03-003", "score": 0.6908547878265381, "sibling_score": 0.6908547878265381, "answer_score": null, "sibling_qid": "KOC-2025-08-1938-Q005", "sibling_text": "last ship engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Engine nomenclature, layout, mark number and engine constant", "cross_family": true } ] }, { "qid": "MUM-2026-09-3926-Q003", "text": "Exhaust gas boiler vs Exhaust gas economiser ?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2026-09-3926", "tray": "new", "candidates": [ { "answer_id": "CMPB-561-003", "score": 0.6139895915985107, "sibling_score": 0.6139895915985107, "answer_score": null, "sibling_qid": "KOL-2023-07-1743-Q005", "sibling_text": "4 advantage of composite boiler w r t to exhaust gas boiler and conventional boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Advantages of a composite boiler over an exhaust-gas and a conventional boiler", "cross_family": true }, { "answer_id": "ECON-EGB-002", "score": 0.6005148887634277, "sibling_score": 0.6005148887634277, "answer_score": 0.5406349897384644, "sibling_qid": "KOL-2022-09-1708-Q003", "sibling_text": "economiser y used superheated steam", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Purpose, efficiency, heat recovery, turn ratio, steam quality & back-pressure", "cross_family": true }, { "answer_id": "COT-P02-03", "score": 0.5950785875320435, "sibling_score": 0.5950785875320435, "answer_score": 0.5192013025283814, "sibling_qid": "KOL-2022-05-0639-Q002", "sibling_text": "advantage of igg over inert gas system from boiler flue wanted to hear something special", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Compare a boiler-flue inert-gas system with a dedicated inert-gas generator and explain why suitable boiler flue gas—not main-engine exhaust—is normally used.", "cross_family": true } ] }, { "qid": "MUM-2026-09-3927-Q001", "text": "Type of ship Which attempt, status of other functions ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-09-3927", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.7305948138237, "sibling_score": 0.7305948138237, "answer_score": null, "sibling_qid": "MUM-2026-06-3459-Q001", "sibling_text": "type of ship sail and status of other function", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.7170804142951965, "sibling_score": 0.7170804142951965, "answer_score": null, "sibling_qid": "MUM-2026-02-1280-Q001", "sibling_text": "type of ship done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.6886141300201416, "sibling_score": 0.6886141300201416, "answer_score": 0.42650694847106935, "sibling_qid": "CHE-2026-05-0614-Q001", "sibling_text": "start from type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "MUM-2026-09-3927-Q003", "text": "What is LDCL ? ACC ? Cross questions", "family": "2-Stroke - Liner & Piston Overhaul", "subtopic": "", "tid": "MUM-2026-09-3927", "tray": "new", "candidates": [ { "answer_id": "CYL-LUB-A-004", "score": 0.47705549001693726, "sibling_score": 0.47705549001693726, "answer_score": null, "sibling_qid": "CHE-2025-08-0205-Q003", "sibling_text": "what is ldcl", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Types of cylinder lubrication system", "cross_family": true }, { "answer_id": "ICCP-119-P01-001", "score": 0.4692046642303467, "sibling_score": 0.4692046642303467, "answer_score": null, "sibling_qid": "CHE-2026-08-0668-Q004", "sibling_text": "what is iccp cross questions", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP — purpose, principle and basic working", "cross_family": true }, { "answer_id": "LCF-LCB-002", "score": 0.4571112096309662, "sibling_score": 0.4571112096309662, "answer_score": null, "sibling_qid": "KOL-2022-02-0603-Q004", "sibling_text": "lcf and cross qstn", "sibling_family": "", "via": "sibling", "answer_title": "How does LCF relate to trim, and why does trim change about LCF rather than LCB?", "cross_family": false } ] }, { "qid": "MUM-2026-09-3927-Q011", "text": "Microbial growth of main engine sump oil ? How to know ? How to prevent?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "", "tid": "MUM-2026-09-3927", "tray": "review", "candidates": [ { "answer_id": "MD-SUMP-001", "score": 0.7070836424827576, "sibling_score": 0.7070836424827576, "answer_score": 0.5774644374847412, "sibling_qid": "KOL-2025-08-3851-Q004", "sibling_text": "microbial degredation of me sump oil indications actions", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Microbial degradation of ME sump / system oil — cause, effect, identification, action, prevention", "cross_family": false }, { "answer_id": "LO-TEST-P01-005", "score": 0.6386286616325378, "sibling_score": 0.6386286616325378, "answer_score": null, "sibling_qid": "MUM-2023-06-2734-Q004", "sibling_text": "lubeoil shows microrbial growth action", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Lube-oil properties, types and selection by duty", "cross_family": false }, { "answer_id": "MD-SUMP-002", "score": 0.6315571665763855, "sibling_score": 0.6315571665763855, "answer_score": 0.5091990232467651, "sibling_qid": "KOL-2026-03-3938-Q001", "sibling_text": "indications of microbial attack in lub oil pungent smell is last how you know when engine is running", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Identifying microbial attack with the engine running — the smell is the last sign", "cross_family": false } ] }, { "qid": "MUM-2026-09-3928-Q002", "text": "How will be the pf 1 ?", "family": "Electrical - Generator & Alternator", "subtopic": "Power Factor", "tid": "MUM-2026-09-3928", "tray": "new", "candidates": [ { "answer_id": "GEN-LSI-B-001", "score": 0.48238277435302734, "sibling_score": 0.48238277435302734, "answer_score": null, "sibling_qid": "KOC-2025-11-1624-Q006", "sibling_text": "2 ae running in parallel pf will be same", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01. Two alternators in parallel — same kW but different current and power factor: cause and correction", "cross_family": false }, { "answer_id": "PF-A-001", "score": 0.47848671674728394, "sibling_score": 0.47848671674728394, "answer_score": null, "sibling_qid": "KOC-2023-03-1250-Q007", "sibling_text": "pf what cause pf and influence of pf", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "What is power factor, and why does it matter on board?", "cross_family": false }, { "answer_id": "PF-B-001", "score": 0.4754742681980133, "sibling_score": 0.4754742681980133, "answer_score": null, "sibling_qid": "KOL-2016-11-2090-Q005", "sibling_text": "if pf decreases from 0 8 to 0 4 what will happen", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Low power factor — causes and effects", "cross_family": false } ] }, { "qid": "MUM-2026-09-3928-Q003", "text": "How will be the pf 0 ?", "family": "Electrical - Generator & Alternator", "subtopic": "Power Factor", "tid": "MUM-2026-09-3928", "tray": "new", "candidates": [ { "answer_id": "PF-B-001", "score": 0.5747398138046265, "sibling_score": 0.5747398138046265, "answer_score": null, "sibling_qid": "KOL-2016-11-2090-Q005", "sibling_text": "if pf decreases from 0 8 to 0 4 what will happen", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Low power factor — causes and effects", "cross_family": false }, { "answer_id": "PF-A-004", "score": 0.5074655413627625, "sibling_score": 0.5074655413627625, "answer_score": null, "sibling_qid": "KOC-2025-11-1624-Q011", "sibling_text": "during running possible to adjust pf", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "The bare 'power factor' prompt — and the drills it triggers", "cross_family": false }, { "answer_id": "PF-A-001", "score": 0.4956757426261902, "sibling_score": 0.4956757426261902, "answer_score": null, "sibling_qid": "KOC-2023-03-1250-Q007", "sibling_text": "pf what cause pf and influence of pf", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "What is power factor, and why does it matter on board?", "cross_family": false } ] }, { "qid": "MUM-2026-09-3928-Q006", "text": "What will happen to voltage in CT ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "PT / CT", "tid": "MUM-2026-09-3928", "tray": "new", "candidates": [ { "answer_id": "PT-CT-001", "score": 0.517586886882782, "sibling_score": 0.517586886882782, "answer_score": null, "sibling_qid": "MUM-2025-08-1570-Q002", "sibling_text": "current transformer step up or step down what happens to voltage current frequency and power here", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Current transformer — what it is, working and diagram", "cross_family": false }, { "answer_id": "VFD-INV-P02-002", "score": 0.4952045977115631, "sibling_score": 0.4952045977115631, "answer_score": null, "sibling_qid": "CHE-2026-05-0603-Q023", "sibling_text": "when frequency changes does voltage change", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "How are voltage and frequency varied and controlled in a VFD?", "cross_family": false }, { "answer_id": "OC-UV-TRIP-001", "score": 0.4947056174278259, "sibling_score": 0.4947056174278259, "answer_score": 0.3755022346973419, "sibling_qid": "KOL-2023-04-2649-Q005", "sibling_text": "under voltage trip i said it will not let acb to close if voltage is lower than 85 then he said before that one more important point is that xque what will happen if it not trips i said more current will flow and can damage winding internal iccp everything satsfied", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Under-voltage trip / no-volt coil — purpose, working, onboard test and calibration", "cross_family": true } ] }, { "qid": "MUM-2026-09-3928-Q007", "text": "CT is step up or step down ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Step Up / Step Down", "tid": "MUM-2026-09-3928", "tray": "new", "candidates": [ { "answer_id": "PT-CT-003", "score": 0.40226590633392334, "sibling_score": 0.40226590633392334, "answer_score": 0.20768226385116575, "sibling_qid": "KOL-2026-04-2981-Q005", "sibling_text": "where ct and pt is used", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "CT and PT instrument transformers — purpose, uses and differences", "cross_family": false }, { "answer_id": "MSB-ESB-D-001", "score": 0.38047245144844055, "sibling_score": 0.38047245144844055, "answer_score": null, "sibling_qid": "MUM-2026-01-1899-Q007", "sibling_text": "pt ct working", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "Main & emergency switchboards: function, construction & ship power distribution", "cross_family": true }, { "answer_id": "PT-CT-001", "score": 0.36813119053840637, "sibling_score": 0.36813119053840637, "answer_score": 0.18734498247504233, "sibling_qid": "MUM-2026-03-2013-Q004", "sibling_text": "again ct in detail", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Current transformer — what it is, working and diagram", "cross_family": false } ] }, { "qid": "MUM-2026-09-3929-Q001", "text": "Pre sea, company, written and other function status", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-09-3929", "tray": "new", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.6323311924934387, "sibling_score": 0.6323311924934387, "answer_score": null, "sibling_qid": "KOC-2026-08-2106-Q001", "sibling_text": "status of written oral company type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.5485605001449585, "sibling_score": 0.5485605001449585, "answer_score": null, "sibling_qid": "MUM-2026-05-3248-Q001", "sibling_text": "introduction sea time company pre sea ship type engine type me", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.5482969284057617, "sibling_score": 0.5482969284057617, "answer_score": null, "sibling_qid": "MUM-2026-06-3459-Q001", "sibling_text": "type of ship sail and status of other function", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false } ] }, { "qid": "MUM-2026-09-3929-Q004", "text": "OWS working erratically during PSC inspection just before departure? Your Action?", "family": "MARPOL - Annex I (Oil)", "subtopic": "15 PPM / OWS", "tid": "MUM-2026-09-3929", "tray": "new", "candidates": [ { "answer_id": "OWS-15PPM-001", "score": 0.6323205828666687, "sibling_score": 0.6323205828666687, "answer_score": null, "sibling_qid": "KOL-2016-11-0029-Q005", "sibling_text": "ows psc inspection", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "OWS-ORB-002", "score": 0.5683042407035828, "sibling_score": 0.5683042407035828, "answer_score": null, "sibling_qid": "MUM-2025-05-2800-Q006", "sibling_text": "iopp survey ows testing at port ows not working and reporting and 1 more i did not remeber", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "2. OWS / 15 ppm alarm not working — reporting and control actions as 2/E", "cross_family": false }, { "answer_id": "EMG-DG-P04-002", "score": 0.5510140657424927, "sibling_score": 0.5510140657424927, "answer_score": null, "sibling_qid": "CHE-2025-08-0289-Q001", "sibling_text": "psc inspection will you try out emergency generator surveyor is insisting to do cargo discharge is on progress", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "PSC / surveyor demonstration during cargo, and required run durations", "cross_family": true } ] }, { "qid": "MUM-2026-09-3929-Q006", "text": "CO2 firefighting system in how many segments it is divided? Their location ?pressure in each segment? INTERNAL QUES KEY ANS HP-180-190 bar, MP-60-80 bar, LP-7-10bar", "family": "SOLAS - Fire Safety", "subtopic": "CO2 System", "tid": "MUM-2026-09-3929", "tray": "review", "candidates": [ { "answer_id": "CO2-SYS-005", "score": 0.6926522254943848, "sibling_score": 0.6926522254943848, "answer_score": null, "sibling_qid": "CHE-2026-03-0129-Q004", "sibling_text": "fixed co2 system all safety bursting disc pressure and temp", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 system safeties, CO2-room requirements, alarms and ventilation", "cross_family": false }, { "answer_id": "CO2-SYS-002", "score": 0.6857264637947083, "sibling_score": 0.6857264637947083, "answer_score": null, "sibling_qid": "KOL-2025-07-0982-Q003", "sibling_text": "co2 system individual line sections pressure test values", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 maintenance, inspection, testing and survey routines", "cross_family": false }, { "answer_id": "FIRE-P01-04", "score": 0.668432891368866, "sibling_score": 0.668432891368866, "answer_score": null, "sibling_qid": "KOC-2024-08-0379-Q005", "sibling_text": "draw hyper mist system p p pressure y two detectors manual operation location what effect on fire", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist — protected areas, machinery coverage, and why it is not whole-engine-room flooding", "cross_family": false } ] }, { "qid": "MUM-2026-09-3930-Q001", "text": "What is moment compensator why and how?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Vibration / Balancing", "tid": "MUM-2026-09-3930", "tray": "new", "candidates": [ { "answer_id": "VIB-BAL-C-FINAL-1-001", "score": 0.6299893856048584, "sibling_score": 0.6299893856048584, "answer_score": 0.414181549847126, "sibling_qid": "CHE-2026-05-0583-Q004", "sibling_text": "moment compensator purpose", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "First- & Second-Order External Moments, Guide-Force Moments & Moment Compensators", "cross_family": false }, { "answer_id": "ETP-344-P03-009", "score": 0.624324381351471, "sibling_score": 0.624324381351471, "answer_score": 0.46989803612232206, "sibling_qid": "KOC-2026-08-2161-Q001", "sibling_text": "moment compensator", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Moment compensator, second-order moment and counter-rotating arrangement", "cross_family": false }, { "answer_id": "DROOP-005", "score": 0.3585955739021301, "sibling_score": null, "answer_score": 0.3585955739021301, "sibling_qid": "", "sibling_text": "compensation in a governor temporary droop for stability compensation temporary droop applied only during a transient then it resets purpose damp the overshoot hunt caused by engine inertia and power lag after a load change", "sibling_family": "", "via": "answer_title", "answer_title": "Compensation in a governor — temporary droop for stability", "cross_family": false } ] }, { "qid": "MUM-2026-09-3930-Q003", "text": "Crash manoeuvring? At what speed is fuel admitted?", "family": "2-Stroke - Reversing & Maneuvering", "subtopic": "Reversing Procedure", "tid": "MUM-2026-09-3930", "tray": "new", "candidates": [ { "answer_id": "ASTERN-006", "score": 0.578187882900238, "sibling_score": 0.578187882900238, "answer_score": 0.46345626711845395, "sibling_qid": "KOC-2026-05-0003-Q007", "sibling_text": "crash manoeuvering", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Emergency reversing / crash astern manoeuvring", "cross_family": false }, { "answer_id": "REV-PROC-001", "score": 0.5778211355209351, "sibling_score": 0.5778211355209351, "answer_score": null, "sibling_qid": "KOC-2026-01-1093-Q008", "sibling_text": "crash manoeuvering", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Reversing a reversible two-stroke main engine — the principle", "cross_family": false }, { "answer_id": "ASTERN-004", "score": 0.48342037200927734, "sibling_score": 0.48342037200927734, "answer_score": null, "sibling_qid": "KOL-2018-08-3169-Q006", "sibling_text": "how will you ensure in main engine fuel is not injecting after giving stop command during maneuvering", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Ensuring fuel injection stops after a stop command, before the next astern movement", "cross_family": false } ] }, { "qid": "MUM-2026-09-3931-Q005", "text": "Stray current ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Eddy Current Losses", "tid": "MUM-2026-09-3931", "tray": "new", "candidates": [ { "answer_id": "EFD-P02-005", "score": 0.6414594054222107, "sibling_score": 0.6414594054222107, "answer_score": 0.4038601383566856, "sibling_qid": "MUM-2026-06-3415-Q014", "sibling_text": "leak current", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Leakage current and its relation to earth-fault indication", "cross_family": false }, { "answer_id": "DSC-004", "score": 0.5497809052467346, "sibling_score": 0.5497809052467346, "answer_score": null, "sibling_qid": "KOL-2021-09-2490-Q004", "sibling_text": "leakage current in pn diaode", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a PN junction, what are majority and minority carriers, and what is breakdown voltage?", "cross_family": false }, { "answer_id": "XFMR-THY-E-001", "score": 0.5457115769386292, "sibling_score": 0.5457115769386292, "answer_score": null, "sibling_qid": "KOL-2026-01-2947-Q004", "sibling_text": "what is eddy currents", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Core / iron loss and eddy-current loss", "cross_family": false } ] }, { "qid": "MUM-2026-09-3931-Q006", "text": "Problems with DCV ?", "family": "Automation & Controls", "subtopic": "Governor (Mechanical / Electronic)", "tid": "MUM-2026-09-3931", "tray": "new", "candidates": [ { "answer_id": "DCP-PPC-001", "score": 0.4569622278213501, "sibling_score": 0.4569622278213501, "answer_score": null, "sibling_qid": "CHE-2025-10-0066-Q004", "sibling_text": "after using dcp u found some of the components not dischargeed fully y aging of components", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "C1 — Composition, Chemical Names & Anti-caking Agents", "cross_family": true }, { "answer_id": "DCP-PPC-003", "score": 0.4433712959289551, "sibling_score": 0.4433712959289551, "answer_score": 0.3675949856638908, "sibling_qid": "KOC-2025-03-0562-Q003", "sibling_text": "checks on dcp", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "C3 — DCP — General Working, Advantages, Disadvantages & Common Issues", "cross_family": true }, { "answer_id": "DCP-FIXED-A-001", "score": 0.43821462988853455, "sibling_score": 0.43821462988853455, "answer_score": null, "sibling_qid": "CHE-2026-05-0598-Q003", "sibling_text": "fixed dcp explain everything", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Draw and explain the fixed DCP/dry-powder deck fire-fighting system", "cross_family": true } ] }, { "qid": "MUM-2026-09-3932-Q001", "text": "Stir back curve ?", "family": "Ship Construction & Stability", "subtopic": "Stability Curves (GZ / KN)", "tid": "MUM-2026-09-3932", "tray": "new", "candidates": [ { "answer_id": "GZKN-P02-001", "score": 0.5443925857543945, "sibling_score": 0.5443925857543945, "answer_score": null, "sibling_qid": "MUM-2026-06-3603-Q006", "sibling_text": "kn curve", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Cross curves of stability (KN curves) — draw, explain, and use to build the GZ curve", "cross_family": false }, { "answer_id": "CFF-P02-002", "score": 0.5376524329185486, "sibling_score": 0.5376524329185486, "answer_score": null, "sibling_qid": "MUM-2026-06-3539-Q004", "sibling_text": "sn curve", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "The S-N curve and the endurance (fatigue) limit", "cross_family": false }, { "answer_id": "STAB-GZ-P01-001", "score": 0.5180562138557434, "sibling_score": 0.5180562138557434, "answer_score": 0.32582750022411344, "sibling_qid": "MUM-2026-06-3452-Q001", "sibling_text": "gz curve", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Draw and explain the statical stability (GZ) curve", "cross_family": false } ] }, { "qid": "MUM-2026-09-3932-Q002", "text": "Addressable OMD?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "OMD / Oil Mist Detector", "tid": "MUM-2026-09-3932", "tray": "new", "candidates": [ { "answer_id": "OMD-004", "score": 0.48497274518013, "sibling_score": 0.48497274518013, "answer_score": null, "sibling_qid": "KOC-2025-01-0524-Q006", "sibling_text": "omd requirements", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "What are the OMD requirements? Why is an OMD fitted on the main engine and not the auxiliary, and can the two be interchanged?", "cross_family": false }, { "answer_id": "OMD-003", "score": 0.46962523460388184, "sibling_score": 0.46962523460388184, "answer_score": 0.22739976048469543, "sibling_qid": "MUM-2025-10-1199-Q007", "sibling_text": "working principle of omd", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Explain the OMD working principle, its types and their differences, the electrical side, and zero setting and calibration.", "cross_family": false }, { "answer_id": "OMD-001", "score": 0.44394680857658386, "sibling_score": 0.44394680857658386, "answer_score": null, "sibling_qid": "KOC-2025-05-2063-Q020", "sibling_text": "omd alarm actions", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "The OMD alarm sounds on your watch. What are your actions, the checks and crankcase inspection that follow, and what are the alarm levels?", "cross_family": false } ] }, { "qid": "MUM-2026-09-3932-Q003", "text": "Sea margin?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "LSA Code", "tid": "MUM-2026-09-3932", "tray": "new", "candidates": [ { "answer_id": "UNCLOS-004", "score": 0.5510252714157104, "sibling_score": 0.5510252714157104, "answer_score": 0.4158510535955429, "sibling_qid": "KOL-2026-03-1198-Q008", "sibling_text": "continental shelf", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is the continental shelf under UNCLOS and what is its range?", "cross_family": true }, { "answer_id": "MARGIN-LINE-003", "score": 0.521537184715271, "sibling_score": 0.521537184715271, "answer_score": null, "sibling_qid": "KOL-2020-07-0416-Q005", "sibling_text": "margin line deck line where drawn", "sibling_family": "", "via": "sibling", "answer_title": "Margin line vs deck line, freeboard and the Plimsoll marks", "cross_family": false }, { "answer_id": "BWMS-STD-B-001", "score": 0.5174057483673096, "sibling_score": 0.5174057483673096, "answer_score": null, "sibling_qid": "KOL-2022-12-0708-Q004", "sibling_text": "why water exchanged 200 nm away from shore", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "D-1 Ballast Water Exchange Standard & the exchange methods", "cross_family": true } ] }, { "qid": "MUM-2026-09-3932-Q004", "text": "Light margin?", "family": "Ship Construction & Stability", "subtopic": "Margin Line / Subdivision", "tid": "MUM-2026-09-3932", "tray": "new", "candidates": [ { "answer_id": "MARGIN-LINE-001", "score": 0.62778240442276, "sibling_score": 0.62778240442276, "answer_score": 0.3092014163732529, "sibling_qid": "CHE-2026-02-0103-Q003S2", "sibling_text": "margin line", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "What is the margin line, and what is its purpose?", "cross_family": false }, { "answer_id": "MARGIN-LINE-002", "score": 0.3276698440313339, "sibling_score": null, "answer_score": 0.3276698440313339, "sibling_qid": "", "sibling_text": "why is the margin line imaginary and not permanently marked it is adesign calculation referenceused in subdivision and damage stability work not an operational limit the crew operate to themarkedlines deck line plimsoll load line marks draught marks intact loading", "sibling_family": "", "via": "answer_title", "answer_title": "Why is the margin line imaginary, and not permanently marked?", "cross_family": false }, { "answer_id": "MARGIN-LINE-006", "score": 0.3241227850317955, "sibling_score": null, "answer_score": 0.3241227850317955, "sibling_qid": "", "sibling_text": "handling ambiguous or compound prompts margin line bare prompts imaginary line marpol line a mishearing of margin line almost always mean the margin line declarethe reading answer andoffer to redirect core fact to deliver 76 mm below the bulkhead deck at side damaged condition limit waterline unmarked calculation line", "sibling_family": "", "via": "answer_title", "answer_title": "Handling ambiguous or compound prompts (margin line)", "cross_family": false } ] }, { "qid": "MUM-2026-09-3932-Q005", "text": "BWTS types?", "family": "Other Conventions", "subtopic": "Ballast Water Convention / BWM / BWMS", "tid": "MUM-2026-09-3932", "tray": "new", "candidates": [ { "answer_id": "BWMS-C-001", "score": 0.6356626152992249, "sibling_score": 0.6356626152992249, "answer_score": null, "sibling_qid": "MUM-2025-10-0517-Q002", "sibling_text": "bwts", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Ballast water management vs treatment — and why a BWTS", "cross_family": false }, { "answer_id": "BWMS-STD-B-002", "score": 0.6100874543190002, "sibling_score": 0.6100874543190002, "answer_score": null, "sibling_qid": "MUM-2026-03-0859-Q003", "sibling_text": "d2 standard for bwts", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "D-2 Ballast Water Performance Standard & how compliance is checked / sampled", "cross_family": false }, { "answer_id": "BWM-D1D2-P02-001", "score": 0.6049610376358032, "sibling_score": 0.6049610376358032, "answer_score": null, "sibling_qid": "KOC-2024-10-0440-Q009", "sibling_text": "what is bwts what are different types of bwts systems d1 d2 stds exp d1 in detail", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Regulation D-1 — ballast water exchange standard and the accepted methods", "cross_family": false } ] }, { "qid": "MUM-2026-09-3932-Q007", "text": "Cam acceleration ?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Cam Profile / Camshaft", "tid": "MUM-2026-09-3932", "tray": "new", "candidates": [ { "answer_id": "CAM-437-001", "score": 0.6149293780326843, "sibling_score": 0.6149293780326843, "answer_score": null, "sibling_qid": "KOC-2025-12-1081-Q001", "sibling_text": "function of cam", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Function of the camshaft in a main (MC) engine", "cross_family": false }, { "answer_id": "CAM-437-003", "score": 0.5705532431602478, "sibling_score": 0.5705532431602478, "answer_score": 0.4323904514312744, "sibling_qid": "MUM-2026-03-1303-Q006", "sibling_text": "cam profile difference", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Cam profile difference — fuel cam versus exhaust cam", "cross_family": false }, { "answer_id": "FCAM-LEAD-P04-001", "score": 0.5679231882095337, "sibling_score": 0.5679231882095337, "answer_score": null, "sibling_qid": "MUM-2024-11-2779-Q003", "sibling_text": "slippage of cam during running engine indications wants hear timing exh gas temp deviation imbalance vibration etc cam slippage allowance", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel cam lead, cam profile, negative cam and cam slip", "cross_family": false } ] }, { "qid": "MUM-2026-09-3933-Q002", "text": "How will you set up the safety valve of economiser?", "family": "Boilers - Safety & Survey", "subtopic": "Safety Valve / High Lift", "tid": "MUM-2026-09-3933", "tray": "new", "candidates": [ { "answer_id": "BLR-SURV-P01-001", "score": 0.6305206418037415, "sibling_score": 0.6305206418037415, "answer_score": null, "sibling_qid": "MUM-2026-05-2994-Q003", "sibling_text": "how do you set the safety valve in front of surveyor", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "ECON-EGB-004", "score": 0.6300795078277588, "sibling_score": 0.6300795078277588, "answer_score": 0.4716608375310898, "sibling_qid": "KOC-2022-08-1790-Q004", "sibling_text": "economiser safety valve setting procedure", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Safety-valve setting after overhaul & why set higher than the boiler", "cross_family": true }, { "answer_id": "BWTEST-A-001", "score": 0.6245377063751221, "sibling_score": 0.6245377063751221, "answer_score": null, "sibling_qid": "MUM-2026-02-1255-Q006", "sibling_text": "setting of safety valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What boiler-water tests are carried out onboard, and what limits are checked?", "cross_family": false } ] }, { "qid": "MUM-2026-09-3934-Q002", "text": "Rotary type S/G how rudder bearing fitted ?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Construction / Pintle", "tid": "MUM-2026-09-3934", "tray": "review", "candidates": [ { "answer_id": "TRS-002", "score": 0.6677722334861755, "sibling_score": 0.6677722334861755, "answer_score": null, "sibling_qid": "KOC-2026-02-1103-Q008", "sibling_text": "how rudder stock and carrier bearing is attached told 2 half fitted bolts x does bearing turn with rudder i told yes then he told that there are 2 types one turn with rudder other dont turn with rudder", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Explain the fork-type tiller mechanism, and how the coupling between the rudder and the stock is made.", "cross_family": false }, { "answer_id": "STEER-055-A-005", "score": 0.6253665089607239, "sibling_score": 0.6253665089607239, "answer_score": null, "sibling_qid": "KOL-2021-10-1635-Q002", "sibling_text": "swivel bearimg in s g", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Checks, clearances, trials and steering-room duties", "cross_family": false }, { "answer_id": "PRE-TEN-001", "score": 0.621073305606842, "sibling_score": 0.621073305606842, "answer_score": null, "sibling_qid": "MUM-2026-06-3504-Q007", "sibling_text": "rudder carrier bearing removal procedure", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Pre-stressing and pre-tensioning in main-engine bolting", "cross_family": false } ] }, { "qid": "MUM-2026-09-3934-Q004", "text": "Plasma cutting and laser cutting ?", "family": "Workshop & Welding", "subtopic": "Gauging / Gouging", "tid": "MUM-2026-09-3934", "tray": "new", "candidates": [ { "answer_id": "WELD-PATM-006", "score": 0.6497753262519836, "sibling_score": 0.6497753262519836, "answer_score": 0.4487179219722748, "sibling_qid": "MUM-2026-01-1238-Q006", "sibling_text": "plasma welding where to do process", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Plasma arc welding – process and uses", "cross_family": false }, { "answer_id": "WELD-A-002", "score": 0.6420531272888184, "sibling_score": 0.6420531272888184, "answer_score": 0.3971441760659218, "sibling_qid": "CHE-2026-04-0499-Q004", "sibling_text": "gas cutting how", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Gas cutting — oxidation process, flame setting and difference from welding", "cross_family": false }, { "answer_id": "PW-327-005", "score": 0.44979817867279054, "sibling_score": null, "answer_score": 0.44979817867279054, "sibling_qid": "", "sibling_text": "5 cutting a thick 50 mm steel plate 50 mm mild steel oxy fuel oxy acetylene oxy lpg flame cutting is the standard workshop method mark correct nozzle and pressures preheat the start steady travel", "sibling_family": "", "via": "answer_title", "answer_title": "5. Cutting a thick (~50 mm) steel plate", "cross_family": false } ] }, { "qid": "MUM-2026-09-3934-Q006", "text": "Some oil curve he is asking don’t remember", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2026-09-3934", "tray": "new", "candidates": [ { "answer_id": "REEF-COMP-003", "score": 0.537779688835144, "sibling_score": 0.537779688835144, "answer_score": null, "sibling_qid": "MUM-2026-09-3997-Q011", "sibling_text": "refer oil properties", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Refrigeration-compressor lube oil — properties, selection, and its jobs beyond lubrication", "cross_family": true }, { "answer_id": "COT-P03-01", "score": 0.5337337255477905, "sibling_score": 0.5337337255477905, "answer_score": null, "sibling_qid": "KOL-2017-04-0085-Q006", "sibling_text": "what is sweet and sour crude oil i said i never heard", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "H₂S, benzene and toxic-cargo vapour exposure — hazards, limits, PPE and respirator checks", "cross_family": true }, { "answer_id": "TKR-TYPE-004", "score": 0.533607542514801, "sibling_score": 0.533607542514801, "answer_score": null, "sibling_qid": "KOL-2019-12-0373-Q007", "sibling_text": "what is sweet and sour crude oil i said i never heard", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "4. Tanker cargo-type classification, examples, and sweet vs sour crude", "cross_family": true } ] }, { "qid": "MUM-2026-09-3934-Q008", "text": "How ultrasonic machine working ?", "family": "Automation & Controls", "subtopic": "Temperature / Pressure / Level Sensor", "tid": "MUM-2026-09-3934", "tray": "new", "candidates": [ { "answer_id": "TPL-SENS-B-002", "score": 0.584997832775116, "sibling_score": 0.584997832775116, "answer_score": null, "sibling_qid": "KOL-2023-09-2677-Q011", "sibling_text": "9 working of ultrasonic sensor", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Sensors, transducers & transmitters — and why 4–20 mA", "cross_family": false }, { "answer_id": "NDT-METH-P02-002", "score": 0.5740549564361572, "sibling_score": 0.5740549564361572, "answer_score": 0.50565305352211, "sibling_qid": "KOL-2021-07-3432-Q005", "sibling_text": "ultrasonic method", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "2. Ultrasonic Testing & Thickness Gauging", "cross_family": true }, { "answer_id": "FSH-DET-003", "score": 0.511595606803894, "sibling_score": 0.511595606803894, "answer_score": null, "sibling_qid": "KOL-2025-01-2758-Q005", "sibling_text": "flame detector ultrasonic tester", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Working principle of UV / flame detectors", "cross_family": false } ] }, { "qid": "MUM-2026-09-3934-Q009", "text": "How ultrasonic machine cleaning the filter because ultrasonic wave have very low frequency ?", "family": "Automation & Controls", "subtopic": "Temperature / Pressure / Level Sensor", "tid": "MUM-2026-09-3934", "tray": "new", "candidates": [ { "answer_id": "TPL-SENS-B-002", "score": 0.5821015238761902, "sibling_score": 0.5821015238761902, "answer_score": null, "sibling_qid": "MUM-2026-07-3789-Q007", "sibling_text": "purifier transducer", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Sensors, transducers & transmitters — and why 4–20 mA", "cross_family": false }, { "answer_id": "NDT-METH-P02-002", "score": 0.5572903752326965, "sibling_score": 0.5572903752326965, "answer_score": null, "sibling_qid": "KOL-2021-07-3432-Q005", "sibling_text": "ultrasonic method", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "2. Ultrasonic Testing & Thickness Gauging", "cross_family": true }, { "answer_id": "PURIF-BOWL-P02-002", "score": 0.5480998754501343, "sibling_score": 0.5480998754501343, "answer_score": null, "sibling_qid": "KOL-2019-10-1487-Q007", "sibling_text": "purifier vibration after overhaul", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Drive, rated RPM, overload, vibration / wobbling & dynamic balancing — causes and troubleshooting", "cross_family": true } ] }, { "qid": "MUM-2026-09-3935-Q003", "text": "Safety con survey ?", "family": "Surveys - Statutory", "subtopic": "Safety Equipment Survey", "tid": "MUM-2026-09-3935", "tray": "new", "candidates": [ { "answer_id": "SEQ-330-001", "score": 0.6254039406776428, "sibling_score": 0.6254039406776428, "answer_score": null, "sibling_qid": "MUM-2024-09-0205-Q013", "sibling_text": "safety equipment survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Safety Equipment survey — what it is, its scope, and what is checked", "cross_family": false }, { "answer_id": "SEQ-330-002", "score": 0.6190213561058044, "sibling_score": 0.6190213561058044, "answer_score": null, "sibling_qid": "MUM-2024-03-0167-Q003", "sibling_text": "safety survey preparation", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Preparing the ship for the Safety Equipment survey as Second Engineer", "cross_family": false }, { "answer_id": "MSB-ESB-B-004", "score": 0.5823466181755066, "sibling_score": 0.5823466181755066, "answer_score": null, "sibling_qid": "MUM-2024-06-1435-Q005", "sibling_text": "msb safeties and survey", "sibling_family": "", "via": "sibling", "answer_title": "MSB survey — what you demonstrate to the surveyor", "cross_family": false } ] }, { "qid": "MUM-2026-09-3935-Q006", "text": "Hull and propeller fouling ?\n", "family": "Drydock & Underwater Surveys", "subtopic": "Hull Painting / Antifouling", "tid": "MUM-2026-09-3935", "tray": "review", "candidates": [ { "answer_id": "DDI-003", "score": 0.6667131781578064, "sibling_score": 0.6667131781578064, "answer_score": null, "sibling_qid": "MUM-2022-11-2719-Q010", "sibling_text": "after drydock as 2ewhat all things to cheek in propeller rudden sit before flooding few more result fail", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Before flooding the dock, what checks do you carry out — in the engine room, and on the propeller, rudder and stern tube?", "cross_family": false }, { "answer_id": "DUS-P4-03", "score": 0.6443688869476318, "sibling_score": 0.6443688869476318, "answer_score": 0.5117495477199554, "sibling_qid": "KOC-2025-12-1086-Q004", "sibling_text": "ship skin resistance reduction methods hull coating propeller advancements air lubrication of hull", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Card 3 — Ship skin-resistance reduction: hull coating, propeller and air-lubrication advances", "cross_family": false }, { "answer_id": "PROP-PIL-A-002", "score": 0.6386284232139587, "sibling_score": 0.6386284232139587, "answer_score": null, "sibling_qid": "KOL-2019-11-3298-Q004", "sibling_text": "propeller is ready to fit in dry dock what u will check wanted to listen bedding how will check if bed properly persian blue method what u will scrap daft or propeller 5 forgot", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Bedding on the taper and fit verification", "cross_family": false } ] }, { "qid": "MUM-2026-09-3935-Q007", "text": "Why we don't fill DB tank full up to sounding pipe ? KEY Answer-to avoid over pressurising of tank", "family": "Cargo Ops - Tankers", "subtopic": "Layout of Tanks", "tid": "MUM-2026-09-3935", "tray": "new", "candidates": [ { "answer_id": "MR-DS-PV-B-004", "score": 0.6492190957069397, "sibling_score": 0.6492190957069397, "answer_score": null, "sibling_qid": "CHE-2025-08-0037-Q002", "sibling_text": "ig system explain cross why providing 125percent expecting to prevent tank goes under vaccum to avoid buckling of tank", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "4. Purpose, arrangement, and safety function of the mast riser / high-velocity vent", "cross_family": false }, { "answer_id": "CPS-316-005", "score": 0.6137258410453796, "sibling_score": 0.6137258410453796, "answer_score": null, "sibling_qid": "MUM-2025-06-0313-Q002", "sibling_text": "how to maintain tank pressure during discharging", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Cargo-tank pressure during discharge: monitoring, maintenance and high/low-pressure sensing", "cross_family": false }, { "answer_id": "COT-P02-13", "score": 0.6024176478385925, "sibling_score": 0.6024176478385925, "answer_score": null, "sibling_qid": "KOL-2019-12-0365-Q001", "sibling_text": "why ig system on tankers what is 02 limitation in tanks what happens in ig system if o2 high alarm comes venting to atmosphere", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What indications and automatic actions occur when inert-gas oxygen is high, and how do you safely reduce excessive oxygen in a loaded cargo tank?", "cross_family": false } ] }, { "qid": "MUM-2026-09-3936-Q002", "text": "What do you mean by 5X72DF ?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Fuel Quality / CCAI", "tid": "MUM-2026-09-3936", "tray": "new", "candidates": [ { "answer_id": "FP-OVHL-005", "score": 0.37731391191482544, "sibling_score": 0.37731391191482544, "answer_score": null, "sibling_qid": "KOL-2018-04-1367-Q006", "sibling_text": "5 ae fo p p 0 setting", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel pump zero setting — what it is, why, and how to set it", "cross_family": false }, { "answer_id": "BWM-D1D2-P02-002", "score": 0.33003294467926025, "sibling_score": 0.33003294467926025, "answer_score": null, "sibling_qid": "KOC-2025-12-0775-Q005", "sibling_text": "d1 d2 d3 d4 d5 standards", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "BWM Section D standards — D-1 to D-5 overview and how they differ", "cross_family": true }, { "answer_id": "FQCC-583-B-007", "score": 0.3218282461166382, "sibling_score": 0.3218282461166382, "answer_score": null, "sibling_qid": "KOL-2017-12-1334-Q004", "sibling_text": "hcv lcv of fuel 5", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "High and low calorific value — the difference and which one you use", "cross_family": false } ] }, { "qid": "MUM-2026-09-3936-Q003", "text": "⁠How to change over to gas mode from fuel mode ?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "SOx Limit", "tid": "MUM-2026-09-3936", "tray": "new", "candidates": [ { "answer_id": "SOX-LIMIT-002", "score": 0.5932651162147522, "sibling_score": 0.5932651162147522, "answer_score": null, "sibling_qid": "CHE-2026-09-3933-Q002", "sibling_text": "duel fuel change over procedure", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "ECA / SECA limits, areas, and fuel changeover", "cross_family": false }, { "answer_id": "ME-NOSTART-001", "score": 0.5539973974227905, "sibling_score": 0.5539973974227905, "answer_score": null, "sibling_qid": "KOL-2019-04-3234-Q002", "sibling_text": "me turning on air but not on fuel", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Starts / turns on air but will not start on fuel — causes, checks and rectification", "cross_family": true }, { "answer_id": "SOX-LIMIT-006", "score": 0.5471236109733582, "sibling_score": 0.5471236109733582, "answer_score": null, "sibling_qid": "KOC-2024-10-0431-Q015", "sibling_text": "fuel change over record", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Proving Annex VI sulphur compliance — records and PSC evidence", "cross_family": false } ] }, { "qid": "MUM-2026-09-3936-Q005", "text": "Advantage of methane as a fuel ?", "family": "Electrical - High Voltage", "subtopic": "High Voltage System", "tid": "MUM-2026-09-3936", "tray": "new", "candidates": [ { "answer_id": "ALT-FUEL-004", "score": 0.5863001346588135, "sibling_score": 0.5863001346588135, "answer_score": null, "sibling_qid": "MUM-2026-06-3556-Q001", "sibling_text": "which is better fuel methane or ammonia", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "How is ammonia used as a future marine fuel, including ammonia-engine operation?", "cross_family": true }, { "answer_id": "ALT-FUEL-002", "score": 0.5741279125213623, "sibling_score": 0.5741279125213623, "answer_score": 0.48706809878349305, "sibling_qid": "MUM-2025-09-0479-Q003", "sibling_text": "methanol as fuel advantage and disadvantage", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is methanol as a marine fuel, and what are its advantages and disadvantages?", "cross_family": true }, { "answer_id": "MSLIP-330-003", "score": 0.5718271732330322, "sibling_score": 0.5718271732330322, "answer_score": null, "sibling_qid": "CHE-2025-12-0230-Q004", "sibling_text": "methane slip in diesel engine and in boiler", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What is methane slip in a diesel engine and in a boiler?", "cross_family": true } ] }, { "qid": "MUM-2026-09-3936-Q009", "text": "How to take performance if nothing is there neither shaft power meter, nor indicator card. ?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Indicator Card / Power Card", "tid": "MUM-2026-09-3936", "tray": "review", "candidates": [ { "answer_id": "RES-PROP-P02-004", "score": 0.6530865430831909, "sibling_score": 0.6530865430831909, "answer_score": null, "sibling_qid": "KOC-2026-05-0029-Q010", "sibling_text": "shaft power meter working", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Ship power definitions and estimation — effective, delivered, shaft and indicated power", "cross_family": false }, { "answer_id": "IND-CARD-003", "score": 0.597260057926178, "sibling_score": 0.597260057926178, "answer_score": 0.4501452773809433, "sibling_qid": "MUM-2023-03-1042-Q006", "sibling_text": "how to take indicator cards and calculate power", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "How do you take indicator cards and calculate indicated power?", "cross_family": false }, { "answer_id": "SFOC-002", "score": 0.5835203528404236, "sibling_score": 0.5835203528404236, "answer_score": null, "sibling_qid": "KOL-2020-02-1530-Q007", "sibling_text": "how to calculate the sfoc of main engine if ship doesn t have shaft power energy meter and power meter", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "How do you calculate SFOC on board? The step-by-step procedure", "cross_family": false } ] }, { "qid": "MUM-2026-09-3936-Q011", "text": "⁠⁠Why we use vacuum fresh water generator onboard ? KEY ANS: Tell the saturation temp drops with vacuum", "family": "Fresh Water & Domestic Systems", "subtopic": "FWG / RO", "tid": "MUM-2026-09-3936", "tray": "new", "candidates": [ { "answer_id": "FWG-RO-001", "score": 0.6168816685676575, "sibling_score": 0.6168816685676575, "answer_score": 0.5226016640663147, "sibling_qid": "MUM-2026-03-1306-Q022", "sibling_text": "why fwg is vacuum condition", "sibling_family": "Fresh Water & Domestic Systems", "via": "sibling", "answer_title": "How is vacuum created in the FWG, why does it run under vacuum, and what if the vacuum will not come?", "cross_family": false }, { "answer_id": "COPT-BF043-004", "score": 0.5778032541275024, "sibling_score": 0.5778032541275024, "answer_score": 0.4858121395111084, "sibling_qid": "KOC-2021-08-2024-Q009", "sibling_text": "y vaccum is necessary in copt plant extract more work by reducing the condensing temperature he want to here it will increase the temperature diff by keeping vacuum", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "4. Why vacuum is necessary, and signs of falling vacuum", "cross_family": true }, { "answer_id": "VAC-COND-002", "score": 0.57337486743927, "sibling_score": 0.57337486743927, "answer_score": null, "sibling_qid": "CHE-2025-09-0443-Q004", "sibling_text": "copt vacuum condenser vacuum drop reason", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Low vacuum, suction loss and failure to build vacuum — the reasons", "cross_family": true } ] }, { "qid": "MUM-2026-09-3937-Q002", "text": "VOC plan and how to recover VOC related certificate and documents ?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "VOC Management / VOC Plan", "tid": "MUM-2026-09-3937", "tray": "new", "candidates": [ { "answer_id": "VOC-MGT-004", "score": 0.6283285021781921, "sibling_score": 0.6283285021781921, "answer_score": 0.36930816173553466, "sibling_qid": "KOC-2025-10-0670-Q016", "sibling_text": "voc records and plan", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "The VOC management plan - contents, records and documents", "cross_family": false }, { "answer_id": "VOC-MGT-003", "score": 0.49611157178878784, "sibling_score": 0.49611157178878784, "answer_score": null, "sibling_qid": "CHE-2026-04-0518-Q011", "sibling_text": "decider po is voc and is the content inside voc management plan", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Managing and controlling VOC - VECS and onboard measures", "cross_family": false }, { "answer_id": "AVICERT-001", "score": 0.4936070442199707, "sibling_score": 0.4936070442199707, "answer_score": null, "sibling_qid": "MUM-2024-02-0165-Q003", "sibling_text": "certificates annex vi", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What certificates and documents are required to be carried on board under MARPOL Annex VI?", "cross_family": false } ] }, { "qid": "MUM-2026-09-3937-Q004", "text": "SOLAS ch-15 ?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Solas Pack A / B", "tid": "MUM-2026-09-3937", "tray": "new", "candidates": [ { "answer_id": "SOLAS-OVW-012", "score": 0.6101999282836914, "sibling_score": 0.6101999282836914, "answer_score": null, "sibling_qid": "KOL-2025-07-0991-Q014", "sibling_text": "solas chapter 15", "sibling_family": "", "via": "sibling", "answer_title": "SOLAS Chapter XV and the newest chapters", "cross_family": false }, { "answer_id": "SOLAS-CH-005", "score": 0.5208706855773926, "sibling_score": 0.5208706855773926, "answer_score": 0.3814718410372734, "sibling_qid": "KOC-2026-02-0804-Q003", "sibling_text": "solas chapter 3 9 15", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Combined SOLAS Chapters III, IX and XV", "cross_family": true }, { "answer_id": "SOLAS-OVW-003", "score": 0.5131316184997559, "sibling_score": 0.5131316184997559, "answer_score": null, "sibling_qid": "KOL-2026-01-1161-Q011", "sibling_text": "solas chapter 14", "sibling_family": "", "via": "sibling", "answer_title": "SOLAS Chapter XIV — ships operating in polar waters (Polar Code)", "cross_family": false } ] }, { "qid": "MUM-2026-09-3937-Q007", "text": "Table talk ?", "family": "MARPOL - General & Compliance", "subtopic": "Bunker Density Issue", "tid": "MUM-2026-09-3937", "tray": "new", "candidates": [ { "answer_id": "SB-PRG-B-003", "score": 0.4203890562057495, "sibling_score": 0.4203890562057495, "answer_score": 0.31182892471551893, "sibling_qid": "MUM-2026-05-3334-Q008", "sibling_text": "stuffing box how to place to work table", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Safety, working table and securing studs", "cross_family": true }, { "answer_id": "MNS-021", "score": 0.4045438766479492, "sibling_score": 0.4045438766479492, "answer_score": null, "sibling_qid": "KOC-2025-08-1561-Q014", "sibling_text": "wat is chattering", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Chattering in a motor contactor", "cross_family": true }, { "answer_id": "AE-TAPPET-002", "score": 0.3989623188972473, "sibling_score": 0.3989623188972473, "answer_score": null, "sibling_qid": "KOL-2021-11-3490-Q006", "sibling_text": "ae tappet why taken and value", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "What is tappet clearance, why is it needed, what values, and what if it is too low / high / zero?", "cross_family": true } ] }, { "qid": "MUM-2026-09-3937-Q008", "text": "How many alarms in cargo tank and how to test ? tell something about circuit.", "family": "Cargo Ops - Tankers", "subtopic": "Mast Riser / Deck Seal / P/V Valve", "tid": "MUM-2026-09-3937", "tray": "review", "candidates": [ { "answer_id": "MAST-PVA-001", "score": 0.6678210496902466, "sibling_score": 0.6678210496902466, "answer_score": null, "sibling_qid": "MUM-2025-09-2836-Q005", "sibling_text": "how pressure inside cargo tank is measured how to try out that alarm location of alarm", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Cargo tank venting — primary & secondary means and the regulation", "cross_family": false }, { "answer_id": "MAST-PVA-005", "score": 0.6562195420265198, "sibling_score": 0.6562195420265198, "answer_score": null, "sibling_qid": "KOL-2017-01-0045-Q003", "sibling_text": "oil tanker cargo tank safeties only those are fitted on the tank pv valve pr set value both vaccume and over pr high pr alarm set value low pr alarm set value overfill alarm set value high level alarm set value how u will do testing of pv valve on board units of pv valve setting", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "P/V valve — testing and calibration", "cross_family": false }, { "answer_id": "COT-P03-05", "score": 0.6473841071128845, "sibling_score": 0.6473841071128845, "answer_score": 0.5000152200460434, "sibling_qid": "MUM-2026-01-0701-Q001", "sibling_text": "ig and cargo alarms and trip before dischargeing", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Alarms, trips and interlocks of the IG and cargo-pumping systems tested before discharge — and how, safely", "cross_family": false } ] }, { "qid": "MUM-2026-09-3937-Q009", "text": "Annex -ll , how many code and type of certificate related to this ?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "Marpol Annex Certificates", "tid": "MUM-2026-09-3937", "tray": "review", "candidates": [ { "answer_id": "AVICERT-001", "score": 0.6590999960899353, "sibling_score": 0.6590999960899353, "answer_score": null, "sibling_qid": "KOL-2019-08-0312-Q004", "sibling_text": "all the certificates under annex 6", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What certificates and documents are required to be carried on board under MARPOL Annex VI?", "cross_family": false }, { "answer_id": "AVICERT-003", "score": 0.631193995475769, "sibling_score": 0.631193995475769, "answer_score": null, "sibling_qid": "KOL-2026-02-1170-Q006", "sibling_text": "types of certificates in annex 6 their validity", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What are the types of certificate under MARPOL Annex VI and what is the validity of each?", "cross_family": false }, { "answer_id": "NPSH-001", "score": 0.6278313398361206, "sibling_score": 0.6278313398361206, "answer_score": null, "sibling_qid": "KOL-2026-06-0001-Q004", "sibling_text": "annex 6 certificates", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is NPSH, and what are its types?", "cross_family": false } ] }, { "qid": "MUM-2026-09-3937-Q010", "text": "What is HKC? document and how many classes in HKC, what all are documents and certificate you have onboard related to HKC", "family": "Surveys - Statutory", "subtopic": "Certificates List", "tid": "MUM-2026-09-3937", "tray": "new", "candidates": [ { "answer_id": "CERT-LIST-P02-005", "score": 0.5488383769989014, "sibling_score": 0.5488383769989014, "answer_score": 0.3659609466791153, "sibling_qid": "KOL-2021-07-0531-Q007", "sibling_text": "class certificates", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Class certificate / classification certificate", "cross_family": false }, { "answer_id": "CERT-LIST-P01-001", "score": 0.5228249430656433, "sibling_score": 0.5228249430656433, "answer_score": null, "sibling_qid": "KOC-2025-03-0569-Q005", "sibling_text": "certificate of class", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "List the statutory certificates carried onboard a ship.", "cross_family": false }, { "answer_id": "HSSC-001", "score": 0.5023015141487122, "sibling_score": 0.5023015141487122, "answer_score": null, "sibling_qid": "MUM-2026-09-3989-Q009", "sibling_text": "hssc", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is HSSC — the Harmonised System of Survey and Certification? Explain the harmonised survey system and programme, and what the \"HSSC code\" is.", "cross_family": false } ] }, { "qid": "MUM-2026-09-3938-Q001", "text": "Striback effect ?", "family": "Electrical - Motors & Starters", "subtopic": "Rotor / Stator", "tid": "MUM-2026-09-3938", "tray": "new", "candidates": [ { "answer_id": "SHELL-PLT-B-001", "score": 0.4713957905769348, "sibling_score": 0.4713957905769348, "answer_score": null, "sibling_qid": "KOC-2025-09-0656-Q003", "sibling_text": "sheer strake", "sibling_family": "", "via": "sibling", "answer_title": "Sheer strake — location, why strengthened, deck-edge / gunwale connection", "cross_family": false }, { "answer_id": "ELEC-ELX-016", "score": 0.35001064389944075, "sibling_score": null, "answer_score": 0.35001064389944075, "sibling_qid": "", "sibling_text": "stroboscopic effect", "sibling_family": "", "via": "answer_title", "answer_title": "Stroboscopic effect", "cross_family": false }, { "answer_id": "CXH-BRG-FINAL-1-007", "score": 0.2585816726088524, "sibling_score": null, "answer_score": 0.2585816726088524, "sibling_qid": "", "sibling_text": "guide shoes strips function types effect of increased clearance guide shoes fixed to the crosshead slide on the guides take side thrust from connecting rod angularity keep the rod vertical white metal faced guide strips shims set the running clearance", "sibling_family": "", "via": "answer_title", "answer_title": "Guide shoes & strips: function, types, effect of increased clearance", "cross_family": false } ] }, { "qid": "MUM-2026-09-3938-Q002", "text": "⁠Copt vibration alarm and main engine vibration alarm, where it comes from how it works ?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Vibration / Balancing", "tid": "MUM-2026-09-3938", "tray": "new", "candidates": [ { "answer_id": "VIB-BAL-A-001", "score": 0.6284200549125671, "sibling_score": 0.6284200549125671, "answer_score": 0.474895578622818, "sibling_qid": "KOL-2020-01-1512-Q004", "sibling_text": "all types of vibration in main engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "VIB-A-01 — Engine vibration — what it is, its types and causes, and how it is controlled", "cross_family": false }, { "answer_id": "VIB-BAL-A-005", "score": 0.6197554469108582, "sibling_score": 0.6197554469108582, "answer_score": 0.5069183856248856, "sibling_qid": "MUM-2024-11-2253-Q001", "sibling_text": "how vibration monitoring carried out in main engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "VIB-A-05 — Measuring and monitoring engine vibration — instruments and parameters", "cross_family": false }, { "answer_id": "VIB-BAL-B-002", "score": 0.5998316407203674, "sibling_score": 0.5998316407203674, "answer_score": null, "sibling_qid": "KOL-2020-01-3307-Q002", "sibling_text": "axial vibration in main engine reason draw axial vibration damper and working", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Axial vibration and the axial vibration damper", "cross_family": false } ] }, { "qid": "MUM-2026-09-3938-Q003", "text": "⁠3 way valve controller what all signals and from where it comes ?( not interested in mechanical or principal)", "family": "Refrigeration & AC", "subtopic": "Comfort Zone", "tid": "MUM-2026-09-3938", "tray": "new", "candidates": [ { "answer_id": "FIVA-220-002", "score": 0.6435059309005737, "sibling_score": 0.6435059309005737, "answer_score": null, "sibling_qid": "CHE-2026-05-0541-Q002S2", "sibling_text": "fiva valve how it gets signal", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "FIVA control of fuel injection — timing, quantity and actuation", "cross_family": true }, { "answer_id": "AUC-P03-02", "score": 0.637122631072998, "sibling_score": 0.637122631072998, "answer_score": 0.5507249176502228, "sibling_qid": "MUM-2025-06-1136-Q008", "sibling_text": "draw 3 port 2 position valve", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "3/2 pilot-operated spring-return valve, sequence and counter-balance valves", "cross_family": true }, { "answer_id": "PLV-3-2-BF055-001", "score": 0.631965160369873, "sibling_score": 0.631965160369873, "answer_score": 0.5305820971727371, "sibling_qid": "MUM-2024-11-2776-Q006", "sibling_text": "draw pilot operated 3 2 valve", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Draw and explain a 3-port, 2-position (3/2) pilot- or solenoid-operated spring-return valve", "cross_family": true } ] }, { "qid": "MUM-2026-09-3938-Q004", "text": "⁠what is EPL and shapoli. How shapoli works ?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Engine Derating", "tid": "MUM-2026-09-3938", "tray": "new", "candidates": [ { "answer_id": "ENG-DERATE-005", "score": 0.3424651324748993, "sibling_score": 0.3424651324748993, "answer_score": 0.2794733315706253, "sibling_qid": "MUM-2025-09-1186-Q008", "sibling_text": "derating and epl and shapoli", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What are engine limiters in relation to derating — EPL and ShaPoLi?", "cross_family": false }, { "answer_id": "EIAPP-600-001", "score": 0.30720221996307373, "sibling_score": 0.30720221996307373, "answer_score": null, "sibling_qid": "CHE-2026-03-0123-Q005", "sibling_text": "eipab explain", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is the EIAPP certificate, what is it issued for, and what does it signify?", "cross_family": true }, { "answer_id": "EEXI-005", "score": 0.2899334132671356, "sibling_score": 0.2899334132671356, "answer_score": 0.21216872110962867, "sibling_qid": "KOC-2025-11-1077-Q002", "sibling_text": "epl how it fitted in mcc engine and me engine", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "The Engine Power Limiter — how it is fitted on MC and ME engines, the setpoint, ShaPoLi, the records, and derating to meet EEXI", "cross_family": true } ] }, { "qid": "MUM-2026-09-3938-Q005", "text": "⁠what is borescope ?", "family": "", "subtopic": "", "tid": "MUM-2026-09-3938", "tray": "new", "candidates": [ { "answer_id": "WTD-001", "score": 0.4382155239582062, "sibling_score": 0.4382155239582062, "answer_score": null, "sibling_qid": "KOL-2025-05-0936-Q003", "sibling_text": "water tight boors", "sibling_family": "SOLAS - Watertight & Closing Appliances", "via": "sibling", "answer_title": "What watertight doors are, the types fitted, and the SOLAS/Class requirements", "cross_family": false }, { "answer_id": "STERN-TUBE-TAIL-SHAFT-001", "score": 0.4229423403739929, "sibling_score": 0.4229423403739929, "answer_score": null, "sibling_qid": "KOL-2025-11-3877-Q003", "sibling_text": "stern tube survey", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "BLR-SURV-P02-002", "score": 0.41979798674583435, "sibling_score": 0.41979798674583435, "answer_score": null, "sibling_qid": "KOL-2023-07-3627-Q005", "sibling_text": "boiler internal inspection", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "MUM-2026-09-3939-Q003", "text": "D3 & D4 ?", "family": "Other Conventions", "subtopic": "BWM / Ballast Water (D1/D2)", "tid": "MUM-2026-09-3939", "tray": "new", "candidates": [ { "answer_id": "BWM-D1D2-P04-002", "score": 0.6178049445152283, "sibling_score": 0.6178049445152283, "answer_score": null, "sibling_qid": "KOC-2022-01-0048-Q013", "sibling_text": "bwms code explain d1 d2 d4", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "D-2 standard and the BWMS Code (ex-G8) — type approval of treatment systems", "cross_family": false }, { "answer_id": "BWMS-A-002", "score": 0.6034284234046936, "sibling_score": 0.6034284234046936, "answer_score": null, "sibling_qid": "MUM-2024-11-0220-Q011", "sibling_text": "d1 and d2", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "D-1 versus D-2: the two ballast water standards", "cross_family": false }, { "answer_id": "BWM-D1D2-P02-001", "score": 0.591467559337616, "sibling_score": 0.591467559337616, "answer_score": null, "sibling_qid": "KOC-2026-03-0883-Q004", "sibling_text": "d1 d2", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Regulation D-1 — ballast water exchange standard and the accepted methods", "cross_family": false } ] }, { "qid": "MUM-2026-09-3939-Q005", "text": "BILGE tank is full and 2-3 days voyage, more to port what to do?", "family": "Bilge & Ballast Systems", "subtopic": "Primary Bilge Tank", "tid": "MUM-2026-09-3939", "tray": "new", "candidates": [ { "answer_id": "PCD-P04-02", "score": 0.6330747604370117, "sibling_score": 0.6330747604370117, "answer_score": null, "sibling_qid": "MUM-2025-06-2325-Q004", "sibling_text": "bilge water filled upto floor level actions to start emergency bilge suction", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "02. Emergency bilge suction — the bilge injection valve, testing and SOLAS requirements", "cross_family": true }, { "answer_id": "ESE-P02-007", "score": 0.6292734742164612, "sibling_score": 0.6292734742164612, "answer_score": null, "sibling_qid": "KOL-2018-05-1373-Q007", "sibling_text": "precautionary measure in bilge cleaning", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "ESE-P02-07. Bilge cleaning and compartment-entry precautions", "cross_family": true }, { "answer_id": "ODC-018", "score": 0.6124370694160461, "sibling_score": 0.6124370694160461, "answer_score": null, "sibling_qid": "MUM-2025-05-2290-Q004", "sibling_text": "er aft bilge well full of water you started ows after permission from ce after running for some time u noticed water level is not going down what can be the reason and actions u will take x que", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "OWS running but the bilge well is not going down — fault diagnosis", "cross_family": true } ] }, { "qid": "MUM-2026-09-3939-Q007", "text": "Few more Pass🎉🎉 & COC", "family": "__META__ (non-exam)", "subtopic": "", "tid": "MUM-2026-09-3939", "tray": "new", "candidates": [ { "answer_id": "CERT-LIST-P01-001", "score": 0.5266321897506714, "sibling_score": 0.5266321897506714, "answer_score": null, "sibling_qid": "MUM-2026-03-2596-Q007", "sibling_text": "finally coc", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "List the statutory certificates carried onboard a ship.", "cross_family": true }, { "answer_id": "CO2-SYS-002", "score": 0.4274568557739258, "sibling_score": 0.4274568557739258, "answer_score": null, "sibling_qid": "KOC-2024-10-0439-Q013", "sibling_text": "co2 checks 2 5 10", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 maintenance, inspection, testing and survey routines", "cross_family": true }, { "answer_id": "COC-001", "score": 0.42205601930618286, "sibling_score": 0.42205601930618286, "answer_score": null, "sibling_qid": "MUM-2026-03-2942-Q017", "sibling_text": "16 what is coc", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is a Condition of Class? Give examples, say where it is found, how much time is given to rectify it, and what happens if it is not met in time.", "cross_family": true } ] }, { "qid": "MUM-2026-09-3940-Q001", "text": "How to check pintle bearing clearance?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Bottom End Bearing", "tid": "MUM-2026-09-3940", "tray": "review", "candidates": [ { "answer_id": "BEB-B-002", "score": 0.7072536945343018, "sibling_score": 0.7072536945343018, "answer_score": null, "sibling_qid": "KOL-2017-01-1270-Q021", "sibling_text": "where and how to check be bearing clearance", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bottom End Bearing — Clearance Measurement", "cross_family": false }, { "answer_id": "BCL-592-001", "score": 0.7066109776496887, "sibling_score": 0.7066109776496887, "answer_score": null, "sibling_qid": "KOL-2025-10-2017-Q006", "sibling_text": "main bearing clearance how to check", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you take main bearing clearance with a bridge gauge? What checks and precautions come first, and where must the crankshaft be positioned?", "cross_family": false }, { "answer_id": "THR-BRG-A-001", "score": 0.6995056867599487, "sibling_score": 0.6995056867599487, "answer_score": null, "sibling_qid": "KOL-2021-11-3486-Q003", "sibling_text": "thrust pad bearing clearance how to check he want to listen to shift shaft aft and ahead and take clearance by filler gauge or dial gauge", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you check, measure, limit and adjust main-engine thrust bearing clearance?", "cross_family": false } ] }, { "qid": "MUM-2026-09-3940-Q002", "text": "how to burn sludge in incinerator? Procedure", "family": "Auxiliary Equipment", "subtopic": "Incinerator", "tid": "MUM-2026-09-3940", "tray": "new", "candidates": [ { "answer_id": "INCIN-003", "score": 0.5798997282981873, "sibling_score": 0.5798997282981873, "answer_score": null, "sibling_qid": "KOC-2025-09-0661-Q011", "sibling_text": "incinerator code", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Which MARPOL annex and code; batch vs continuous-feed", "cross_family": false }, { "answer_id": "INCIN-002", "score": 0.5719406604766846, "sibling_score": 0.5719406604766846, "answer_score": null, "sibling_qid": "KOL-2017-07-0102-Q003", "sibling_text": "incinerator operations what to not burn", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "What you can and cannot burn under MARPOL", "cross_family": false }, { "answer_id": "INCIN-004", "score": 0.5259919166564941, "sibling_score": 0.5259919166564941, "answer_score": 0.48934159278869627, "sibling_qid": "MUM-2026-06-3459-Q006", "sibling_text": "incinerator pms checks", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Incinerator PMS, maintenance and PSC verification", "cross_family": false } ] }, { "qid": "MUM-2026-09-3940-Q003", "text": "Milling pump and it's function?", "family": "Pumps - Centrifugal & PD", "subtopic": "Centrifugal Pump", "tid": "MUM-2026-09-3940", "tray": "new", "candidates": [ { "answer_id": "PCD-P01-02", "score": 0.6119901537895203, "sibling_score": 0.6119901537895203, "answer_score": null, "sibling_qid": "KOL-2022-04-1672-Q008", "sibling_text": "pump used in oily water separator ans screw pp why", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Types and classification of pumps on board — and which pump for which duty", "cross_family": false }, { "answer_id": "PCD-P05-02", "score": 0.6035712361335754, "sibling_score": 0.6035712361335754, "answer_score": null, "sibling_qid": "KOL-2026-02-4083-Q007", "sibling_text": "screw pump and timing gear function mep fn6", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Screw pump — construction, working, types, drive arrangement, clearances, why preferred over gear", "cross_family": false }, { "answer_id": "PCD-P05-03", "score": 0.5972272753715515, "sibling_score": 0.5972272753715515, "answer_score": null, "sibling_qid": "KOL-2020-03-3331-Q005", "sibling_text": "gear pump working", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Gear pump — construction, working, backlash, tooth profile, safety valve, why not for sea water", "cross_family": false } ] }, { "qid": "MUM-2026-09-3940-Q004", "text": "What is Macerator?", "family": "", "subtopic": "", "tid": "MUM-2026-09-3940", "tray": "new", "candidates": [ { "answer_id": "MAC-598-001", "score": 0.38787007331848145, "sibling_score": 0.38787007331848145, "answer_score": null, "sibling_qid": "KOC-2025-12-1084-Q004", "sibling_text": "mac valve parts explain", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "The main air compressor valve — arrangement, parts, and why the construction is so complex", "cross_family": false }, { "answer_id": "FQCC-583-B-012", "score": 0.38535597920417786, "sibling_score": 0.38535597920417786, "answer_score": 0.3261587411165237, "sibling_qid": "KOL-2017-01-1267-Q006", "sibling_text": "homogeniser", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "What is a homogeniser, and what can it and cannot it do?", "cross_family": false }, { "answer_id": "AC-STAGE-002", "score": 0.3842208981513977, "sibling_score": 0.3842208981513977, "answer_score": null, "sibling_qid": "KOL-2025-12-2031-Q006", "sibling_text": "mac ratio btwn stages", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Intermediate pressure / pressure ratio for minimum work", "cross_family": false } ] }, { "qid": "MUM-2026-09-3940-Q005", "text": "Dynamic balancing in ship?", "family": "Turbocharger", "subtopic": "Turbocharger (General)", "tid": "MUM-2026-09-3940", "tray": "new", "candidates": [ { "answer_id": "TC-CS-P01-008", "score": 0.6493530869483948, "sibling_score": 0.6493530869483948, "answer_score": null, "sibling_qid": "MUM-2026-06-3621-Q008", "sibling_text": "static dynamic balancing", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "H·Static and dynamic balancing of the turbocharger rotor", "cross_family": false }, { "answer_id": "VIB-BAL-C-FINAL-1-003", "score": 0.6169635653495789, "sibling_score": 0.6169635653495789, "answer_score": null, "sibling_qid": "KOC-2026-08-2111-Q008", "sibling_text": "static and dynamic balancing", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Static and Dynamic Balancing of the Crankshaft / Shaft", "cross_family": false }, { "answer_id": "STAB-GZ-P01-001", "score": 0.604068398475647, "sibling_score": 0.604068398475647, "answer_score": null, "sibling_qid": "KOC-2022-05-0075-Q002", "sibling_text": "how ship comes back to equilibrium after heeled", "sibling_family": "", "via": "sibling", "answer_title": "Draw and explain the statical stability (GZ) curve", "cross_family": false } ] }, { "qid": "MUM-2026-09-3941-Q001", "text": "Status of written and oral ? Ship sailed ?How much total exams passed and how many left", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-09-3941", "tray": "new", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.6236538290977478, "sibling_score": 0.6236538290977478, "answer_score": null, "sibling_qid": "CHE-2026-01-0101-Q001", "sibling_text": "types of ship done and exam status", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "DUS-P1-02", "score": 0.5854442715644836, "sibling_score": 0.5854442715644836, "answer_score": null, "sibling_qid": "KOL-2025-08-3851-Q006", "sibling_text": "drydock plans rudder checks cross questions what about other written oral exams status told waiting for naval written result to come all other paper cleared", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Plans, drawings and special tools kept ready for drydock — engine-department view", "cross_family": true }, { "answer_id": "ACCT-583-B-FINAL-1-001", "score": 0.5288293361663818, "sibling_score": 0.5288293361663818, "answer_score": null, "sibling_qid": "MUM-2026-01-1252-Q001", "sibling_text": "status of results oral written exam", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "The boiler accumulation of pressure test — what it is, why it is done, how it is carried out, and when", "cross_family": true } ] }, { "qid": "MUM-2026-09-3941-Q002", "text": "What is Upper and lower stool and location construction ?", "family": "Electrical - Motors & Starters", "subtopic": "Induction Motor (General / Working)", "tid": "MUM-2026-09-3941", "tray": "new", "candidates": [ { "answer_id": "DBTB-A-002", "score": 0.407234251499176, "sibling_score": 0.407234251499176, "answer_score": null, "sibling_qid": "KOC-2025-06-0612-Q005", "sibling_text": "double bottom construction diagram", "sibling_family": "", "via": "sibling", "answer_title": "Double-bottom tanks: purpose, advantages, disadvantages and stability effect", "cross_family": false }, { "answer_id": "TOP-BRC-002", "score": 0.4061357378959656, "sibling_score": 0.4061357378959656, "answer_score": null, "sibling_qid": "KOL-2023-07-1748-Q004", "sibling_text": "top bracing location construction", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "2. Types and working — mechanical (friction) and hydraulic", "cross_family": true }, { "answer_id": "KEEL-FRM-B-003", "score": 0.3926626443862915, "sibling_score": 0.3926626443862915, "answer_score": null, "sibling_qid": "KOL-2020-06-0412-Q003", "sibling_text": "rise of floor from where it rises", "sibling_family": "", "via": "sibling", "answer_title": "Rise of floor, camber, deadrise & hull-form terms", "cross_family": false } ] }, { "qid": "MUM-2026-09-3941-Q003", "text": "GT of vessel and definitions ?", "family": "Ship Construction & Stability", "subtopic": "DEFINITION", "tid": "MUM-2026-09-3941", "tray": "new", "candidates": [ { "answer_id": "TONN-007", "score": 0.5341244339942932, "sibling_score": 0.5341244339942932, "answer_score": 0.39166185557842254, "sibling_qid": "KOC-2023-03-0154-Q003", "sibling_text": "gt and nt of ship definition unit of both", "sibling_family": "", "via": "sibling", "answer_title": "Differentiate GT, NT, GRT/NRT, DWT, Lightweight and Displacement", "cross_family": false }, { "answer_id": "SFOC-004", "score": 0.4550439119338989, "sibling_score": 0.4550439119338989, "answer_score": null, "sibling_qid": "KOC-2025-03-1031-Q004", "sibling_text": "fo cons of ur vessel", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What is the fuel oil consumption of your vessel?", "cross_family": true }, { "answer_id": "CHEM-PA-011", "score": 0.44316941499710083, "sibling_score": 0.44316941499710083, "answer_score": null, "sibling_qid": "MUM-2026-03-2938-Q002", "sibling_text": "which vessel", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "What ‘en route’ means for Annex II discharge", "cross_family": true } ] }, { "qid": "MUM-2026-09-3941-Q004", "text": "Hydrostatic curves ? And how taken", "family": "Boilers - Safety & Survey", "subtopic": "Hydrostatic Test", "tid": "MUM-2026-09-3941", "tray": "new", "candidates": [ { "answer_id": "HYD-BONJ-001", "score": 0.63912433385849, "sibling_score": 0.63912433385849, "answer_score": 0.44326957166194914, "sibling_qid": "KOL-2022-04-0621-Q002", "sibling_text": "hydrostatic curve details", "sibling_family": "", "via": "sibling", "answer_title": "Hydrostatic curves — what they give and how they are used", "cross_family": false }, { "answer_id": "BM-SF-CF-002", "score": 0.4034518629312515, "sibling_score": null, "answer_score": 0.4034518629312515, "sibling_qid": "", "sibling_text": "load shear force and bending moment diagrams for a full tank bulkhead hydrostatic pressure is rho g h rising linearly with depth so the load on the bulkhead is triangular zero at the free surface maximum at the bottom a bulkhead or one vertical stiffener is treated as a beam supported top and bottom", "sibling_family": "", "via": "answer_title", "answer_title": "Load, shear-force and bending-moment diagrams for a full-tank bulkhead", "cross_family": false }, { "answer_id": "NPSH-005", "score": 0.3924647018313408, "sibling_score": null, "answer_score": 0.3924647018313408, "sibling_qid": "", "sibling_text": "draw the centrifugal pump curves and show the npsh why is the distillate pump placed at the lowest level of the engine room on the h q chart add against flow the maker s npshr curve and the system npsha curve npsha usually falls with flow for a fixed source but read the npshr shape off the maker s curve do not assume it rises monotonically the npsha npshr crossing is a zero margin boundary maximum", "sibling_family": "", "via": "answer_title", "answer_title": "Draw the centrifugal pump curves and show the NPSH. Why is the distillate pump placed at the lowest level of the engine room?", "cross_family": false } ] }, { "qid": "MUM-2026-09-3941-Q005", "text": "Fat fryer fires and extinguisher chemical name and composition how it extinguish ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "LO Test / Analysis", "tid": "MUM-2026-09-3941", "tray": "review", "candidates": [ { "answer_id": "FOAM-SYS-P04-003", "score": 0.6675384640693665, "sibling_score": 0.6675384640693665, "answer_score": null, "sibling_qid": "KOL-2023-07-0757-Q004", "sibling_text": "foam type extinguishing working", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "2. How mechanical foam is produced", "cross_family": true }, { "answer_id": "FEXT-583-001", "score": 0.6431953310966492, "sibling_score": 0.6431953310966492, "answer_score": null, "sibling_qid": "KOL-2026-07-4150-Q005", "sibling_text": "type of foam fire extinguisher", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Types of portable fire extinguishers carried on board, their capacities and their advantages", "cross_family": true }, { "answer_id": "DCP-PPC-001", "score": 0.6392841339111328, "sibling_score": 0.6392841339111328, "answer_score": null, "sibling_qid": "KOC-2025-07-0633-Q042", "sibling_text": "how dry chemical extinguish fire", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "C1 — Composition, Chemical Names & Anti-caking Agents", "cross_family": true } ] }, { "qid": "MUM-2026-09-3941-Q007", "text": "Hatch watertight testing ? Latest methods", "family": "SOLAS - Watertight & Closing Appliances", "subtopic": "Watertight Door", "tid": "MUM-2026-09-3941", "tray": "new", "candidates": [ { "answer_id": "WTD-002", "score": 0.6017034649848938, "sibling_score": 0.6017034649848938, "answer_score": null, "sibling_qid": "MUM-2026-03-0830-Q003", "sibling_text": "watertight testing", "sibling_family": "SOLAS - Watertight & Closing Appliances", "via": "sibling", "answer_title": "Inspecting, maintaining and testing watertight doors and watertight integrity in survey", "cross_family": false }, { "answer_id": "WEATH-545-001", "score": 0.541719377040863, "sibling_score": 0.541719377040863, "answer_score": null, "sibling_qid": "CHE-2026-08-3887-Q006", "sibling_text": "watertight door and weathertight testing", "sibling_family": "SOLAS - Watertight & Closing Appliances", "via": "sibling", "answer_title": "What is weathertight, and how does it differ from watertight — meaning, application, location and testing?", "cross_family": false }, { "answer_id": "HATCH-CVR-005", "score": 0.49027329683303833, "sibling_score": 0.49027329683303833, "answer_score": 0.4135441467165947, "sibling_qid": "CHE-2025-12-0327-Q010", "sibling_text": "chalk test and hose test procedure for hatch cover", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "What is the chalk test and hose test procedure for hatch covers?", "cross_family": true } ] }, { "qid": "MUM-2026-09-3942-Q009", "text": "Fatigue and what is cyclic ?", "family": "NDT & Material Testing", "subtopic": "Creep / Fatigue Failure", "tid": "MUM-2026-09-3942", "tray": "new", "candidates": [ { "answer_id": "CFF-P02-001", "score": 0.5519602298736572, "sibling_score": 0.5519602298736572, "answer_score": 0.38527865409851075, "sibling_qid": "MUM-2026-06-3515-Q007", "sibling_text": "fatigue happens in which components", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Fatigue failure — what it is and where it occurs", "cross_family": false }, { "answer_id": "CFF-P02-002", "score": 0.5327719449996948, "sibling_score": 0.5327719449996948, "answer_score": 0.3656114161014557, "sibling_qid": "MUM-2026-05-3002-Q003", "sibling_text": "fatigue where happen draw sn curve explain sn curve", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "The S-N curve and the endurance (fatigue) limit", "cross_family": false }, { "answer_id": "CFF-P02-003", "score": 0.40073123425245283, "sibling_score": null, "answer_score": 0.40073123425245283, "sibling_qid": "", "sibling_text": "low cycle and high cycle fatigue high cycle fatigue hcf low stress elastic n large broadly 10 4 up to 10 6 10 8 stress controlled the s n endurance limit regime basquin low cycle fatigue lcf high stress into plastic strain each cycle n small broadly 10 4 strain controlled coffin manson no endurance limit benefit", "sibling_family": "", "via": "answer_title", "answer_title": "Low-cycle and high-cycle fatigue", "cross_family": false } ] }, { "qid": "MUM-2026-09-3943-Q001", "text": "What is cargo liquefaction ?", "family": "Other Conventions", "subtopic": "IMDG Code", "tid": "MUM-2026-09-3943", "tray": "new", "candidates": [ { "answer_id": "IMSBC-BULK-002", "score": 0.6094765663146973, "sibling_score": 0.6094765663146973, "answer_score": 0.4740445256233215, "sibling_qid": "MUM-2024-11-0219-Q006", "sibling_text": "liquification of cargo preventive measures", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "Liquefaction, moisture content and TML", "cross_family": true }, { "answer_id": "LPG-LNG-001", "score": 0.576610267162323, "sibling_score": 0.576610267162323, "answer_score": null, "sibling_qid": "KOL-2023-08-0761-Q003", "sibling_text": "type of tanker lpg why carried in liquid form", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "LPG vs LNG – properties, carriage and comparison", "cross_family": true }, { "answer_id": "GC-TANK-004", "score": 0.5722668170928955, "sibling_score": 0.5722668170928955, "answer_score": null, "sibling_qid": "KOL-2025-04-0931-Q007", "sibling_text": "cargo tank construction lpg carrier int", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Gas-carrier cargo tank construction: materials, insulation, fixing and tank safeties", "cross_family": true } ] }, { "qid": "MUM-2026-09-3943-Q003", "text": "What is TML and FMP ?", "family": "Cargo Ops - Bulk Carriers", "subtopic": "IMSBC / TML", "tid": "MUM-2026-09-3943", "tray": "new", "candidates": [ { "answer_id": "NDT-METH-P02-001", "score": 0.34258517622947693, "sibling_score": 0.34258517622947693, "answer_score": null, "sibling_qid": "KOL-2026-02-3920-Q002", "sibling_text": "what is mpt", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "1. Magnetic Particle Inspection (MPI / MPT)", "cross_family": true }, { "answer_id": "ISMNC-002", "score": 0.3223162889480591, "sibling_score": 0.3223162889480591, "answer_score": null, "sibling_qid": "MUM-2026-01-0685-Q005", "sibling_text": "mlc mnc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a major non-conformity under the ISM Code? Give the definition and name some.", "cross_family": true }, { "answer_id": "TPC-FWA-001", "score": 0.3220481872558594, "sibling_score": 0.3220481872558594, "answer_score": null, "sibling_qid": "MUM-2024-07-0186-Q002", "sibling_text": "tpc and it s definition", "sibling_family": "", "via": "sibling", "answer_title": "TPC — definition, formula, and why we divide by 100", "cross_family": false } ] }, { "qid": "MUM-2026-09-3943-Q006", "text": "Angle of Deepwater ?", "family": "Ship Construction & Stability", "subtopic": "Angle of Loll / Stiff & Tender", "tid": "MUM-2026-09-3943", "tray": "new", "candidates": [ { "answer_id": "DS-P04-002", "score": 0.6281219124794006, "sibling_score": 0.6281219124794006, "answer_score": null, "sibling_qid": "MUM-2026-06-3540-Q010", "sibling_text": "down flooding angle", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Flooding, subdivision, margin line, downflooding and survivability", "cross_family": false }, { "answer_id": "LOLL-P02-003", "score": 0.5527474284172058, "sibling_score": 0.5527474284172058, "answer_score": null, "sibling_qid": "CHE-2026-05-0566-Q008", "sibling_text": "ship listed at angle of loll how will you make sure that is angle of loll by looking at it", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "2. Identifying loll from the jetty — loll versus list and heel", "cross_family": false }, { "answer_id": "LOLL-CORE-P01-001", "score": 0.5465722680091858, "sibling_score": 0.5465722680091858, "answer_score": null, "sibling_qid": "MUM-2026-09-3976-Q014", "sibling_text": "what is angle of loll", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "What is angle of loll?", "cross_family": false } ] }, { "qid": "MUM-2026-09-3943-Q007", "text": "Stool space ?", "family": "Ship Construction & Stability", "subtopic": "Stern Frame / Transom", "tid": "MUM-2026-09-3943", "tray": "new", "candidates": [ { "answer_id": "DUS-P5-03", "score": 0.5178940892219543, "sibling_score": 0.5178940892219543, "answer_score": null, "sibling_qid": "NOI-2026-09-0006-Q003", "sibling_text": "transom space", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Stern frame construction, cross-section and rudder-axis sketch", "cross_family": false }, { "answer_id": "PRING-CLR-A-002", "score": 0.48951876163482666, "sibling_score": 0.48951876163482666, "answer_score": null, "sibling_qid": "KOC-2023-10-1820-Q006", "sibling_text": "butt clearance", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Piston-ring clearances and calibration — butt, axial, radial, wear limits", "cross_family": true }, { "answer_id": "ESE-P01-003", "score": 0.46972501277923584, "sibling_score": 0.46972501277923584, "answer_score": null, "sibling_qid": "KOC-2026-08-2143-Q005", "sibling_text": "enclosed space", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "General enclosed-space entry procedure as second engineer", "cross_family": true } ] }, { "qid": "MUM-2026-09-3944-Q001", "text": "How to check pintle bearing clearance?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Bottom End Bearing", "tid": "MUM-2026-09-3944", "tray": "review", "candidates": [ { "answer_id": "BEB-B-002", "score": 0.707253634929657, "sibling_score": 0.707253634929657, "answer_score": null, "sibling_qid": "KOL-2017-01-1270-Q021", "sibling_text": "where and how to check be bearing clearance", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Bottom End Bearing — Clearance Measurement", "cross_family": false }, { "answer_id": "BCL-592-001", "score": 0.7066109776496887, "sibling_score": 0.7066109776496887, "answer_score": null, "sibling_qid": "KOL-2025-10-2017-Q006", "sibling_text": "main bearing clearance how to check", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you take main bearing clearance with a bridge gauge? What checks and precautions come first, and where must the crankshaft be positioned?", "cross_family": false }, { "answer_id": "THR-BRG-A-001", "score": 0.6995056867599487, "sibling_score": 0.6995056867599487, "answer_score": null, "sibling_qid": "KOL-2021-11-3486-Q003", "sibling_text": "thrust pad bearing clearance how to check he want to listen to shift shaft aft and ahead and take clearance by filler gauge or dial gauge", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you check, measure, limit and adjust main-engine thrust bearing clearance?", "cross_family": false } ] }, { "qid": "MUM-2026-09-3944-Q002", "text": "How to burn sludge in incinerator? Procedure", "family": "Auxiliary Equipment", "subtopic": "Incinerator", "tid": "MUM-2026-09-3944", "tray": "new", "candidates": [ { "answer_id": "INCIN-003", "score": 0.5798997282981873, "sibling_score": 0.5798997282981873, "answer_score": null, "sibling_qid": "KOC-2025-09-0661-Q011", "sibling_text": "incinerator code", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Which MARPOL annex and code; batch vs continuous-feed", "cross_family": false }, { "answer_id": "INCIN-002", "score": 0.5719406604766846, "sibling_score": 0.5719406604766846, "answer_score": null, "sibling_qid": "KOL-2017-07-0102-Q003", "sibling_text": "incinerator operations what to not burn", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "What you can and cannot burn under MARPOL", "cross_family": false }, { "answer_id": "INCIN-004", "score": 0.5259919166564941, "sibling_score": 0.5259919166564941, "answer_score": 0.48934159278869627, "sibling_qid": "MUM-2026-06-3459-Q006", "sibling_text": "incinerator pms checks", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Incinerator PMS, maintenance and PSC verification", "cross_family": false } ] }, { "qid": "MUM-2026-09-3944-Q003", "text": "Milling pump and it's function?", "family": "Pumps - Centrifugal & PD", "subtopic": "Centrifugal Pump", "tid": "MUM-2026-09-3944", "tray": "new", "candidates": [ { "answer_id": "PCD-P01-02", "score": 0.6119901537895203, "sibling_score": 0.6119901537895203, "answer_score": null, "sibling_qid": "KOL-2022-04-1672-Q008", "sibling_text": "pump used in oily water separator ans screw pp why", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Types and classification of pumps on board — and which pump for which duty", "cross_family": false }, { "answer_id": "PCD-P05-02", "score": 0.6035712361335754, "sibling_score": 0.6035712361335754, "answer_score": null, "sibling_qid": "KOL-2026-02-4083-Q007", "sibling_text": "screw pump and timing gear function mep fn6", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Screw pump — construction, working, types, drive arrangement, clearances, why preferred over gear", "cross_family": false }, { "answer_id": "PCD-P05-03", "score": 0.5972272753715515, "sibling_score": 0.5972272753715515, "answer_score": null, "sibling_qid": "KOL-2020-03-3331-Q005", "sibling_text": "gear pump working", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Gear pump — construction, working, backlash, tooth profile, safety valve, why not for sea water", "cross_family": false } ] }, { "qid": "MUM-2026-09-3944-Q004", "text": "What is Macerator?", "family": "Auxiliary Equipment", "subtopic": "Incinerator", "tid": "MUM-2026-09-3944", "tray": "new", "candidates": [ { "answer_id": "GAM-439-002", "score": 0.38925495743751526, "sibling_score": 0.38925495743751526, "answer_score": null, "sibling_qid": "KOC-2025-07-0637-Q011", "sibling_text": "machineries under u", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Machinery and emergency equipment under the Third Engineer", "cross_family": false }, { "answer_id": "MAC-598-001", "score": 0.38787007331848145, "sibling_score": 0.38787007331848145, "answer_score": null, "sibling_qid": "KOC-2025-12-1084-Q004", "sibling_text": "mac valve parts explain", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "The main air compressor valve — arrangement, parts, and why the construction is so complex", "cross_family": true }, { "answer_id": "FQCC-583-B-012", "score": 0.38535597920417786, "sibling_score": 0.38535597920417786, "answer_score": 0.3261587411165237, "sibling_qid": "KOL-2017-01-1267-Q006", "sibling_text": "homogeniser", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "What is a homogeniser, and what can it and cannot it do?", "cross_family": true } ] }, { "qid": "MUM-2026-09-3944-Q005", "text": "Dynamic balancing equipment part name? In drydock", "family": "Turbocharger", "subtopic": "Turbocharger (General)", "tid": "MUM-2026-09-3944", "tray": "new", "candidates": [ { "answer_id": "TURBO-CS-P03-015", "score": 0.5955348610877991, "sibling_score": 0.5955348610877991, "answer_score": null, "sibling_qid": "KOL-2020-10-3355-Q002", "sibling_text": "ae t c balancing after overhaul in place", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Overhaul: condition-based triggers and rotor balancing", "cross_family": false }, { "answer_id": "TC-OVHL-005", "score": 0.5913990139961243, "sibling_score": 0.5913990139961243, "answer_score": null, "sibling_qid": "KOL-2025-09-3858-Q004", "sibling_text": "static and dynamic balancing of a turbocharger", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharger rotor balancing and shaft trueness", "cross_family": false }, { "answer_id": "TC-CS-P01-008", "score": 0.5887394547462463, "sibling_score": 0.5887394547462463, "answer_score": null, "sibling_qid": "KOC-2026-08-2105-Q008", "sibling_text": "static and dynamic balancing of turbocharger", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "H·Static and dynamic balancing of the turbocharger rotor", "cross_family": false } ] }, { "qid": "MUM-2026-09-3944-Q007", "text": "Embarkation ladder test?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Pilot Ladder / Transfer", "tid": "MUM-2026-09-3944", "tray": "new", "candidates": [ { "answer_id": "PLE-468-001", "score": 0.5714368224143982, "sibling_score": 0.5714368224143982, "answer_score": null, "sibling_qid": "KOC-2025-10-1603-Q008", "sibling_text": "embarkation ladder light requirement", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "1. Lifeboat / rescue boat embarkation lighting — requirements and what makes it special (including the embarkation ladder light)", "cross_family": false }, { "answer_id": "DRG-B-011", "score": 0.5379162430763245, "sibling_score": 0.5379162430763245, "answer_score": null, "sibling_qid": "KOL-2026-01-1163-Q002", "sibling_text": "lifeboat launching arrangement is working satisfactory how to test", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lowering mechanism — inspection and checks as 2/E", "cross_family": false }, { "answer_id": "LB-SDT-A-001", "score": 0.535049319267273, "sibling_score": 0.535049319267273, "answer_score": null, "sibling_qid": "KOC-2023-03-0168-Q009", "sibling_text": "tests on life boat n davit", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat static and dynamic test — purpose and procedure", "cross_family": false } ] }, { "qid": "MUM-2026-09-3944-Q008", "text": "Starting air Motor parts name?", "family": "Electrical - Generator & Alternator", "subtopic": "Synchronous vs Asynchronous", "tid": "MUM-2026-09-3944", "tray": "review", "candidates": [ { "answer_id": "AIR-DIST-001", "score": 0.6660174131393433, "sibling_score": 0.6660174131393433, "answer_score": null, "sibling_qid": "KOL-2022-05-1682-Q002", "sibling_text": "starting air distributor type and full working", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Air distributor — construction, types and working", "cross_family": true }, { "answer_id": "SAV-001", "score": 0.6650576591491699, "sibling_score": 0.6650576591491699, "answer_score": 0.5101928472518921, "sibling_qid": "KOC-2026-03-1115-Q006", "sibling_text": "camshaft of air starting valve", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Construction and working of the main automatic starting air valve", "cross_family": true }, { "answer_id": "SYN-ASY-B-001", "score": 0.6528113484382629, "sibling_score": 0.6528113484382629, "answer_score": null, "sibling_qid": "CHE-2026-04-0375-Q001", "sibling_text": "synchronous motor with parts name and why not self starting", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Why a synchronous motor is not self-starting, and starting methods", "cross_family": false } ] }, { "qid": "MUM-2026-09-3946-Q004", "text": "Why radial and axial TC ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Bearing Nomenclature", "tid": "MUM-2026-09-3946", "tray": "new", "candidates": [ { "answer_id": "BRG-NOM-002", "score": 0.44322216510772705, "sibling_score": 0.44322216510772705, "answer_score": 0.3020866274833679, "sibling_qid": "MUM-2023-08-2186-Q001", "sibling_text": "what is radial and axial bearing", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Ball, Roller, Radial and Axial Bearings — Choosing the Type", "cross_family": false }, { "answer_id": "TC-CONST-001", "score": 0.4385671317577362, "sibling_score": 0.4385671317577362, "answer_score": null, "sibling_qid": "CHE-2026-02-0334-Q004", "sibling_text": "tc type radial and axial flow differ constant and pulse type difference air cooler purpose", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharger types, series names, and ME/AE arrangements", "cross_family": true }, { "answer_id": "THR-BRG-A-001", "score": 0.40982216596603394, "sibling_score": 0.40982216596603394, "answer_score": null, "sibling_qid": "MUM-2026-04-1007-Q005", "sibling_text": "axial clearance why", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you check, measure, limit and adjust main-engine thrust bearing clearance?", "cross_family": false } ] }, { "qid": "MUM-2026-09-3946-Q005", "text": "Cold corrosion how to prevent ? IDCL", "family": "Boilers - Construction & Components", "subtopic": "Exhaust Gas Boiler", "tid": "MUM-2026-09-3946", "tray": "review", "candidates": [ { "answer_id": "CC-294-003", "score": 0.6817023158073425, "sibling_score": 0.6817023158073425, "answer_score": null, "sibling_qid": "CHE-2026-03-0489-Q012", "sibling_text": "how prevent cold corrosion in egb", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Preventing it — LDCL and keeping the wall warm", "cross_family": false }, { "answer_id": "CC-294-001", "score": 0.6034014225006104, "sibling_score": 0.6034014225006104, "answer_score": 0.45076565742492675, "sibling_qid": "MUM-2026-07-3806-Q005", "sibling_text": "cold corrosion why how and what to do", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What cold corrosion is, and what it attacks", "cross_family": true }, { "answer_id": "HOTC-333-002", "score": 0.5944603681564331, "sibling_score": 0.5944603681564331, "answer_score": 0.4353248059749603, "sibling_qid": "CHE-2026-05-0556-Q002", "sibling_text": "hot corrosion and cold corrosion ldcl", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Differentiate hot corrosion and cold corrosion in a marine diesel engine.", "cross_family": true } ] }, { "qid": "MUM-2026-09-3946-Q008", "text": "How cam operated in AE and ME ?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Cam Profile / Camshaft", "tid": "MUM-2026-09-3946", "tray": "new", "candidates": [ { "answer_id": "CAM-437-001", "score": 0.5044315457344055, "sibling_score": 0.5044315457344055, "answer_score": null, "sibling_qid": "KOC-2025-12-1081-Q001", "sibling_text": "function of cam", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Function of the camshaft in a main (MC) engine", "cross_family": false }, { "answer_id": "FCAM-LEAD-P04-001", "score": 0.3922153115272522, "sibling_score": 0.3922153115272522, "answer_score": null, "sibling_qid": "MUM-2025-09-2831-Q006", "sibling_text": "casted cam", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel cam lead, cam profile, negative cam and cam slip", "cross_family": false }, { "answer_id": "MEB-MEC-P03-001", "score": 0.3638876974582672, "sibling_score": 0.3638876974582672, "answer_score": null, "sibling_qid": "CHE-2025-11-0223-Q002", "sibling_text": "me c engines are cam less how cam function is achieved", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "ME-B vs ME-C — the core difference", "cross_family": true } ] }, { "qid": "MUM-2026-09-3946-Q009", "text": "Refrigeration cycle, cross vac and heat transfer and many cross ?", "family": "Surveys - Statutory", "subtopic": "PSC / Flag / RO / CIC / MoU", "tid": "MUM-2026-09-3946", "tray": "new", "candidates": [ { "answer_id": "BPV-315-004", "score": 0.5909273624420166, "sibling_score": 0.5909273624420166, "answer_score": null, "sibling_qid": "KOC-2023-07-2040-Q010", "sibling_text": "a c refrigeration difference back pr valve cross qstns", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Is a back pressure valve used in AC systems? AC versus refrigeration", "cross_family": true }, { "answer_id": "REEF-COMP-008", "score": 0.5767723321914673, "sibling_score": 0.5767723321914673, "answer_score": null, "sibling_qid": "MUM-2026-04-2668-Q001", "sibling_text": "refrigeration cycle", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Valves, clearances, oil carry-over, refrigerant-in-oil, frosting, tandem valves, cooling — fault checks", "cross_family": true }, { "answer_id": "REEF-CHG-003", "score": 0.5684880614280701, "sibling_score": 0.5684880614280701, "answer_score": null, "sibling_qid": "KOL-2017-04-3051-Q003", "sibling_text": "refrigerant charging in refer compressor with function of recovery bottle with cross questions", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "03Spare and recovery refrigerant bottles: connections and uses", "cross_family": true } ] }, { "qid": "MUM-2026-09-3946-Q011", "text": "IGG ,why AE exhaust can't use though it running 24 hr ?", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "MUM-2026-09-3946", "tray": "new", "candidates": [ { "answer_id": "EXH-T-HI-001", "score": 0.5453839898109436, "sibling_score": 0.5453839898109436, "answer_score": null, "sibling_qid": "KOL-2026-07-4258-Q005", "sibling_text": "exhaust temperature of ae increasing what you will be the problem", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "All units exhaust temperature high — causes and actions", "cross_family": true }, { "answer_id": "AE-HOT-BLOW-004", "score": 0.5429041385650635, "sibling_score": 0.5429041385650635, "answer_score": 0.44215906858444215, "sibling_qid": "MUM-2025-12-2879-Q006", "sibling_text": "rating of the ae running at low load but exhaust temp are high reason", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Auxiliary engine at low load but exhaust temperatures high — reasons", "cross_family": true }, { "answer_id": "EXHV-P01-001", "score": 0.5349669456481934, "sibling_score": 0.5349669456481934, "answer_score": null, "sibling_qid": "KOL-2023-03-3595-Q009", "sibling_text": "exhaust valve actuator broken then how will you run m e", "sibling_family": "2-Stroke - Exhaust, Valve & Starting Air", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": true } ] }, { "qid": "MUM-2026-09-3946-Q012", "text": "IGG calibration ?", "family": "Cargo Ops - Tankers", "subtopic": "IG System", "tid": "MUM-2026-09-3946", "tray": "new", "candidates": [ { "answer_id": "COT-P02-04", "score": 0.5720120668411255, "sibling_score": 0.5720120668411255, "answer_score": null, "sibling_qid": "MUM-2022-10-1031-Q004", "sibling_text": "construction of igg", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Draw and explain the construction and operation of a dedicated inert-gas generator.", "cross_family": false }, { "answer_id": "COT-P02-03", "score": 0.5648922324180603, "sibling_score": 0.5648922324180603, "answer_score": null, "sibling_qid": "KOL-2022-03-0609-Q001", "sibling_text": "difference between igg igs", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Compare a boiler-flue inert-gas system with a dedicated inert-gas generator and explain why suitable boiler flue gas—not main-engine exhaust—is normally used.", "cross_family": false }, { "answer_id": "COT-P02-02", "score": 0.5394433736801147, "sibling_score": 0.5394433736801147, "answer_score": null, "sibling_qid": "KOL-2017-01-0047-Q003", "sibling_text": "composition of ig", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "State the normal composition and key operating parameters of tanker inert gas, and explain the oxygen limits at the plant outlet and in cargo tanks.", "cross_family": false } ] }, { "qid": "MUM-2026-09-3946-Q015", "text": "Framo purging FB? ramo. Heating arrangement some more forget", "family": "Cargo Ops - Tankers", "subtopic": "Cargo Pump (Framo / Eductor)", "tid": "MUM-2026-09-3946", "tray": "review", "candidates": [ { "answer_id": "CPFE-583-011", "score": 0.6849245429039001, "sibling_score": 0.6849245429039001, "answer_score": null, "sibling_qid": "MUM-2026-05-3323-Q006", "sibling_text": "framo heating arrangement", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Heating arrangement and hydraulic oil in cold regions", "cross_family": false }, { "answer_id": "CPFE-583-007", "score": 0.534420907497406, "sibling_score": 0.534420907497406, "answer_score": null, "sibling_qid": "KOL-2019-03-1445-Q009", "sibling_text": "purging line type of seals position of seal why seal in that position where is heater", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Pressure not building — and purging the hydraulic system", "cross_family": false }, { "answer_id": "TCM-374-001", "score": 0.5201492309570312, "sibling_score": 0.5201492309570312, "answer_score": null, "sibling_qid": "KOC-2026-03-2013-Q002", "sibling_text": "location of tank cleaning machine heater", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Overhaul, inspection and intervals of a tank-cleaning machine (with heater and pump)", "cross_family": false } ] }, { "qid": "MUM-2026-09-3947-Q001", "text": "Requirement of 500 m zone of platform ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "OMD / Oil Mist Detector", "tid": "MUM-2026-09-3947", "tray": "new", "candidates": [ { "answer_id": "UNCLOS-003", "score": 0.3655184507369995, "sibling_score": 0.3655184507369995, "answer_score": null, "sibling_qid": "KOL-2023-09-0768-Q002", "sibling_text": "what contiguous zone", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What are the maritime zones under UNCLOS — territorial waters, the contiguous zone and the international maritime boundary?", "cross_family": true }, { "answer_id": "THR-BRG-A-001", "score": 0.34944015741348267, "sibling_score": 0.34944015741348267, "answer_score": null, "sibling_qid": "MUM-2025-10-2436-Q002", "sibling_text": "thrust pad location and various clearances", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you check, measure, limit and adjust main-engine thrust bearing clearance?", "cross_family": false }, { "answer_id": "ODC-008", "score": 0.33454596996307373, "sibling_score": 0.33454596996307373, "answer_score": null, "sibling_qid": "KOL-2021-10-0565-Q002", "sibling_text": "oil discharge criteria outside special area 5 points", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Cargo-area discharge criteria for an oil tanker — outside a special area", "cross_family": true } ] }, { "qid": "MUM-2026-09-3947-Q002", "text": "LSA equipment onboard and lifebuoy ?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "LSA Code", "tid": "MUM-2026-09-3947", "tray": "review", "candidates": [ { "answer_id": "LRHR-A-004", "score": 0.6545479893684387, "sibling_score": 0.6545479893684387, "answer_score": 0.4930521696805954, "sibling_qid": "KOL-2024-10-0868-Q002", "sibling_text": "equipments on liferaft as per solas", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Liferaft equipment as per SOLAS — the A pack and the B pack", "cross_family": false }, { "answer_id": "LSA-LB-A-004", "score": 0.6525593400001526, "sibling_score": 0.6525593400001526, "answer_score": 0.5139328598976135, "sibling_qid": "KOL-2026-03-1203-Q003", "sibling_text": "equipment in lifeboat under solas", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat equipment / outfit per SOLAS-LSA Code", "cross_family": false }, { "answer_id": "LRHR-B-005", "score": 0.6327870488166809, "sibling_score": 0.6327870488166809, "answer_score": null, "sibling_qid": "MUM-2022-07-0019-Q003", "sibling_text": "solas chapter 3 various lsa onboard markings on liferaft", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What markings are on the liferaft container, and what is marked on the raft itself?", "cross_family": false } ] }, { "qid": "MUM-2026-09-3947-Q004", "text": "GHG GWP ODP and VOC ?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "NOx / SOx / ODS", "tid": "MUM-2026-09-3947", "tray": "new", "candidates": [ { "answer_id": "AV6-P04-01", "score": 0.5982585549354553, "sibling_score": 0.5982585549354553, "answer_score": 0.4328286439180374, "sibling_qid": "MUM-2026-06-3582-Q009", "sibling_text": "gwp global warming potential", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Define Global Warming Potential and Ozone Depletion Potential; give the reference bases, meaning of a stated value, and the time-horizon and equal-mass points examiners drill.", "cross_family": false }, { "answer_id": "AIRP-188-001", "score": 0.556372344493866, "sibling_score": 0.556372344493866, "answer_score": null, "sibling_qid": "CHE-2025-10-0064-Q003", "sibling_text": "gwp odp", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is an ozone-depleting substance, and what is ODP?", "cross_family": false }, { "answer_id": "MEPC-GHG-005", "score": 0.530336320400238, "sibling_score": 0.530336320400238, "answer_score": null, "sibling_qid": "KOL-2025-08-1005-Q005", "sibling_text": "revised ghg", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "The IMO GHG Strategy and its revised version — the new and latest GHG measures, the strategy on CO2, and the requirements for reducing GHG.", "cross_family": false } ] }, { "qid": "MUM-2026-09-3948-Q001", "text": "Type of Ships sailed on ? GRT of Ships sailed on ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-09-3948", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.6728342771530151, "sibling_score": 0.6728342771530151, "answer_score": null, "sibling_qid": "MUM-2026-02-1272-Q002", "sibling_text": "type of ships sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "SOLAS12-BC-A-001", "score": 0.661375105381012, "sibling_score": 0.661375105381012, "answer_score": null, "sibling_qid": "MUM-2026-06-3382-Q001", "sibling_text": "type of ship sailed bulk carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "SOLAS definition and scope of a bulk carrier", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.6573718190193176, "sibling_score": 0.6573718190193176, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false } ] }, { "qid": "MUM-2026-09-3948-Q006", "text": "Stern Tube Chrome Liner have scratches - your actions ?", "family": "Shafting, Propeller & Rudder", "subtopic": "Stern Tube / Tail Shaft Bearings", "tid": "MUM-2026-09-3948", "tray": "review", "candidates": [ { "answer_id": "STERN-P03-001", "score": 0.6522282361984253, "sibling_score": 0.6522282361984253, "answer_score": 0.44335220456123353, "sibling_qid": "MUM-2026-09-3883-Q009", "sibling_text": "stern tube crome liner uneven what will you do as 2e", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Chrome / shaft liner: fitting, removal, grooving & wastage, and repair options", "cross_family": true }, { "answer_id": "STT-BRG-004", "score": 0.6131202578544617, "sibling_score": 0.6131202578544617, "answer_score": 0.416804701089859, "sibling_qid": "KOC-2026-08-2158-Q006", "sibling_text": "stern tube chrome liner diagram and sealing arrangement explain", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "3. Chrome liner and seal securing — fitting, retention and repair", "cross_family": false }, { "answer_id": "STT-BRG-006", "score": 0.586067259311676, "sibling_score": 0.586067259311676, "answer_score": null, "sibling_qid": "KOL-2021-11-3488-Q002", "sibling_text": "stern tube seal oil leak girter spring chrome liner", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "5. Seal leakage — corrective action at sea and in dry dock", "cross_family": false } ] }, { "qid": "MUM-2026-09-3948-Q011", "text": "Dry & Wet Lay up of Boiler ?", "family": "Boilers - Safety & Survey", "subtopic": "Wet/Dry Layup", "tid": "MUM-2026-09-3948", "tray": "new", "candidates": [ { "answer_id": "BWTEST-A-002", "score": 0.6165050864219666, "sibling_score": 0.6165050864219666, "answer_score": null, "sibling_qid": "NOI-2026-09-0019-Q003", "sibling_text": "boiler mountings and water tests carried out", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What does high boiler-water chloride, salinity or TDS indicate, and what action is required?", "cross_family": false }, { "answer_id": "BLR-SURV-P01-001", "score": 0.5988671779632568, "sibling_score": 0.5988671779632568, "answer_score": null, "sibling_qid": "KOL-2021-07-1602-Q009", "sibling_text": "survey preparation of boiler", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Preparing and presenting an auxiliary boiler for survey (as 2/E)", "cross_family": false }, { "answer_id": "BLR-SURV-P02-002", "score": 0.59661865234375, "sibling_score": 0.59661865234375, "answer_score": null, "sibling_qid": "KOC-2025-12-1980-Q009", "sibling_text": "boiler inspection after drydock", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "MUM-2026-09-3949-Q003", "text": "Value of sewage effluent ?", "family": "Electrical - Motors & Starters", "subtopic": "IR Test / Insulation Resistance", "tid": "MUM-2026-09-3949", "tray": "new", "candidates": [ { "answer_id": "SEW-DISCH-001", "score": 0.575541079044342, "sibling_score": 0.575541079044342, "answer_score": null, "sibling_qid": "MUM-2026-05-3202-Q003", "sibling_text": "what are effluents of sewage", "sibling_family": "MARPOL - Annex IV (Sewage)", "via": "sibling", "answer_title": "1. Define sewage under MARPOL Annex IV", "cross_family": true }, { "answer_id": "SEW-DISCH-003", "score": 0.5298075079917908, "sibling_score": 0.5298075079917908, "answer_score": 0.3955564439296722, "sibling_qid": "CHE-2026-03-0129-Q003", "sibling_text": "annex 4 raw sewage discharge rate formula", "sibling_family": "MARPOL - Annex IV (Sewage)", "via": "sibling", "answer_title": "3. Moderate-rate discharge formula for untreated sewage", "cross_family": true }, { "answer_id": "STP-SEW-002", "score": 0.5259745121002197, "sibling_score": 0.5259745121002197, "answer_score": null, "sibling_qid": "CHE-2026-08-3891-Q008", "sibling_text": "sewage treatment plant parameters level", "sibling_family": "MARPOL - Annex IV (Sewage)", "via": "sibling", "answer_title": "Discharge criteria under Regulation 11", "cross_family": true } ] }, { "qid": "MUM-2026-09-3949-Q005", "text": "Air draft ?", "family": "2-Stroke - Fuel Injection & Pumps", "subtopic": "Engine Not Starting", "tid": "MUM-2026-09-3949", "tray": "new", "candidates": [ { "answer_id": "TPC-FWA-005", "score": 0.5601498484611511, "sibling_score": 0.5601498484611511, "answer_score": null, "sibling_qid": "MUM-2024-11-0221-Q001", "sibling_text": "diff between air draft and hydrostatic draft", "sibling_family": "", "via": "sibling", "answer_title": "Air draught versus hydrostatic draught", "cross_family": false }, { "answer_id": "SAT-578-002", "score": 0.5592413544654846, "sibling_score": 0.5592413544654846, "answer_score": null, "sibling_qid": "KOL-2018-08-1400-Q003", "sibling_text": "starting air overlap with degrees", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "What is starting air overlap, and how many degrees of overlap is provided?", "cross_family": false }, { "answer_id": "REEF-PREP-005", "score": 0.5473519563674927, "sibling_score": 0.5473519563674927, "answer_score": null, "sibling_qid": "KOL-2019-08-0308-Q003", "sibling_text": "draw explain refer container how air is coming inside the container draw duct of air passage how ventilation is adjusted", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Reefer container — arrangement, air passage, ventilation and cooling types", "cross_family": true } ] }, { "qid": "MUM-2026-09-3949-Q009", "text": "Ana log and digital ?", "family": "MARPOL - Annex I (Oil)", "subtopic": "Oil Discharge Criteria", "tid": "MUM-2026-09-3949", "tray": "new", "candidates": [ { "answer_id": "AUC-SEN-02", "score": 0.4486776292324066, "sibling_score": 0.4486776292324066, "answer_score": 0.3572290658950806, "sibling_qid": "KOC-2025-09-1574-Q007", "sibling_text": "analog devices working", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "A/D and I/P signal conversion — where the loop meets the digital controller", "cross_family": true }, { "answer_id": "ODC-014", "score": 0.434341698884964, "sibling_score": 0.434341698884964, "answer_score": null, "sibling_qid": "KOL-2021-07-0532-Q003", "sibling_text": "odmcs log", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "ODMCS — what it records, the log, and calibration", "cross_family": false }, { "answer_id": "TPL-SENS-B-004", "score": 0.4016984701156616, "sibling_score": 0.4016984701156616, "answer_score": null, "sibling_qid": "MUM-2026-09-3931-Q001", "sibling_text": "analog signal why not 0 20 ma", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Shipboard T/P/L instrumentation — principles & the remote-indication chain", "cross_family": true } ] }, { "qid": "MUM-2026-09-3950-Q001", "text": "What is the cam nomenclature ?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Engine Nomenclature", "tid": "MUM-2026-09-3950", "tray": "new", "candidates": [ { "answer_id": "CAM-437-001", "score": 0.5660208463668823, "sibling_score": 0.5660208463668823, "answer_score": null, "sibling_qid": "KOC-2025-12-1081-Q001", "sibling_text": "function of cam", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Function of the camshaft in a main (MC) engine", "cross_family": true }, { "answer_id": "FCAM-LEAD-P04-001", "score": 0.5245099067687988, "sibling_score": 0.5245099067687988, "answer_score": 0.3747470885515213, "sibling_qid": "KOL-2023-12-1769-Q003", "sibling_text": "cam profile base circle cam circle", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Fuel cam lead, cam profile, negative cam and cam slip", "cross_family": true }, { "answer_id": "MEB-MEC-P03-002", "score": 0.5127407312393188, "sibling_score": 0.5127407312393188, "answer_score": null, "sibling_qid": "KOL-2025-03-1971-Q003", "sibling_text": "in me engine who does the cam job", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "ME camless control architecture — ECS, CCU, EICU, MPC", "cross_family": false } ] }, { "qid": "MUM-2026-09-3950-Q002", "text": "Deep well pump construction ?", "family": "Pumps - Centrifugal & PD", "subtopic": "Hele-Shaw / Axial Piston", "tid": "MUM-2026-09-3950", "tray": "new", "candidates": [ { "answer_id": "CPFE-583-021", "score": 0.6457390189170837, "sibling_score": 0.6457390189170837, "answer_score": 0.5698310524225235, "sibling_qid": "KOC-2024-07-0996-Q003", "sibling_text": "draw cross section of deep well pump particular about impeller", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Deepwell and submersible pumps — construction, impeller and materials", "cross_family": true }, { "answer_id": "HSAP-583-A-001", "score": 0.6406856179237366, "sibling_score": 0.6406856179237366, "answer_score": null, "sibling_qid": "KOL-2021-12-1910-Q002", "sibling_text": "heleshaw pump construction", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Hele-Shaw pump: construction and working — draw and explain", "cross_family": false }, { "answer_id": "PAL-620-002", "score": 0.634322464466095, "sibling_score": 0.634322464466095, "answer_score": null, "sibling_qid": "KOL-2024-03-3677-Q006", "sibling_text": "windlass load test skd multistage centrifugal pump was asking about circulating pump only has been removed for overhauling and how u ll proceed to fit it back was not interested to listen it s overhauling it was about how u ll fit back i e preparation for the foundation of pump how u ll prepare to fit back and later as in circulating pump basement gets pitting and other defects due to leakage of pump how u ll do alignment and shims material", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "How do you align and refit a pump and motor set after an overhaul, and what checks apply? The pump vibrates after overhaul — reasons and actions.", "cross_family": false } ] }, { "qid": "MUM-2026-09-3950-Q003", "text": "Safeties in a deep well pump ?", "family": "Cargo Ops - Tankers", "subtopic": "Pump Room Safety", "tid": "MUM-2026-09-3950", "tray": "new", "candidates": [ { "answer_id": "PUMPRM-B-004", "score": 0.641948401927948, "sibling_score": 0.641948401927948, "answer_score": 0.4696536332368851, "sibling_qid": "KOC-2022-03-0069-Q003", "sibling_text": "pump room safeties safeties on pump", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Safeties provided in a cargo pump room", "cross_family": false }, { "answer_id": "PR-SAFE-A-004", "score": 0.6210340857505798, "sibling_score": 0.6210340857505798, "answer_score": null, "sibling_qid": "KOC-2022-09-0101-Q009", "sibling_text": "pump room safeties except electrical", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Pump-room electrical safety, lighting and portable equipment", "cross_family": false }, { "answer_id": "CPFE-583-014", "score": 0.618050754070282, "sibling_score": 0.618050754070282, "answer_score": 0.454695862531662, "sibling_qid": "KOL-2025-12-1145-Q001", "sibling_text": "safeties in cargo pump", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Safeties, interlocks and emergency stops", "cross_family": false } ] }, { "qid": "MUM-2026-09-3950-Q004", "text": "What is the control air drier, how it works and drain construction ?", "family": "Air Compressor", "subtopic": "Reciprocating Compressor", "tid": "MUM-2026-09-3950", "tray": "new", "candidates": [ { "answer_id": "MAC-353-009", "score": 0.5427579879760742, "sibling_score": 0.5427579879760742, "answer_score": 0.47945163547992703, "sibling_qid": "KOL-2019-11-3292-Q003", "sibling_text": "draw the automatic drain arrangement in air compressor and explain", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Automatic drain / moisture-drainage arrangement for the air compressor", "cross_family": false }, { "answer_id": "ICAC-299-004", "score": 0.5380818843841553, "sibling_score": 0.5380818843841553, "answer_score": 0.4620927482843399, "sibling_qid": "KOL-2018-09-3189-Q003", "sibling_text": "air line intercooler and aftercooler purpose and arrangements to remove moisture from compressed air system", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "Moisture removal: cooler, separator and drains", "cross_family": false }, { "answer_id": "UNL-330-002", "score": 0.47103250324726104, "sibling_score": null, "answer_score": 0.47103250324726104, "sibling_qid": "", "sibling_text": "explain the working of the main air compressor unloader location end of the drain lines from intercooler and aftercooler separators construction solenoid operated spring loaded valve small orifice strainer in the line on many designs", "sibling_family": "", "via": "answer_title", "answer_title": "Explain the working of the main air compressor unloader.", "cross_family": false } ] }, { "qid": "MUM-2026-09-3950-Q006", "text": "What is IGG burner safeties and operation and construction/mountings and what type of refractory ?", "family": "Boilers - Operations & Firing", "subtopic": "Burner Type (Rotary Cup / Pressure Jet)", "tid": "MUM-2026-09-3950", "tray": "new", "candidates": [ { "answer_id": "BLRBURN-007", "score": 0.5441918969154358, "sibling_score": 0.5441918969154358, "answer_score": null, "sibling_qid": "MUM-2026-06-3563-Q001", "sibling_text": "cone type burner and y type burner", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "What are the types of boiler burner, and what atomising medium does each use?", "cross_family": false }, { "answer_id": "BFS-257-002", "score": 0.5314416289329529, "sibling_score": 0.5314416289329529, "answer_score": null, "sibling_qid": "MUM-2023-10-1063-Q009", "sibling_text": "types of burner", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Types of boiler burner and basic identification", "cross_family": false }, { "answer_id": "BLRBURN-003", "score": 0.5300707817077637, "sibling_score": 0.5300707817077637, "answer_score": null, "sibling_qid": "KOL-2026-07-4258-Q004", "sibling_text": "rotary type burner maintenance", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Draw and explain the rotary cup burner — its working and speed of rotation.", "cross_family": false } ] }, { "qid": "MUM-2026-09-3950-Q009", "text": "Where is the jacks placed for alignment ?", "family": "Automation & Controls", "subtopic": "Fire / Smoke / Heat Detector", "tid": "MUM-2026-09-3950", "tray": "new", "candidates": [ { "answer_id": "WBRT-002", "score": 0.5073679685592651, "sibling_score": 0.5073679685592651, "answer_score": null, "sibling_qid": "CHE-2023-11-0394-Q004", "sibling_text": "where will you put the jack", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Why 60%, and how the jack load and pressure are set", "cross_family": true }, { "answer_id": "MAIN-BRG-B-001", "score": 0.4568096697330475, "sibling_score": 0.4568096697330475, "answer_score": null, "sibling_qid": "KOL-2022-01-3513-Q002", "sibling_text": "main bearing removal asked to draw how jacks are fitted location of chain block", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How do you open up / remove / overhaul a main-engine main bearing?", "cross_family": true }, { "answer_id": "TBR-TT-P02-002", "score": 0.4506421387195587, "sibling_score": 0.4506421387195587, "answer_score": null, "sibling_qid": "KOL-2025-06-3805-Q007", "sibling_text": "tie rod slacken in running condition how will adjust n where you fit jack tightening sequence howmuch pressure too much cross don t know what", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Checking tie rod tightness / slackness — stopped and running", "cross_family": true } ] }, { "qid": "MUM-2026-09-3950-Q011", "text": "Drain arrangement from funnel ?", "family": "Refrigeration & AC", "subtopic": "Refer Safety", "tid": "MUM-2026-09-3950", "tray": "new", "candidates": [ { "answer_id": "REEF-PREP-003", "score": 0.6324233412742615, "sibling_score": 0.6324233412742615, "answer_score": 0.39806458801031114, "sibling_qid": "KOL-2019-10-1484-Q005", "sibling_text": "refer room drain arrangement", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Refrigerated-room drain and moisture-removal arrangement", "cross_family": false }, { "answer_id": "SOX-LIMIT-003", "score": 0.5097967982292175, "sibling_score": 0.5097967982292175, "answer_score": null, "sibling_qid": "KOL-2019-04-0277-Q006", "sibling_text": "also asked about special arrangement in scrubber tower drain", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Controlling SOx onboard — compliant fuel, scrubbers, alternatives", "cross_family": true }, { "answer_id": "HUM-334-008", "score": 0.5021918416023254, "sibling_score": 0.5021918416023254, "answer_score": null, "sibling_qid": "KOC-2021-07-1763-Q004", "sibling_text": "ac water drain how water is accumulated so much", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Why does water collect in an AC drain tray, an AHU drain, or on floors as dew / condensate?", "cross_family": false } ] }, { "qid": "MUM-2026-09-3950-Q012", "text": "What is crescent type pump ?", "family": "Cargo Ops - Tankers", "subtopic": "Cargo Pump (Framo / Eductor)", "tid": "MUM-2026-09-3950", "tray": "new", "candidates": [ { "answer_id": "PCD-P05-03", "score": 0.6356155872344971, "sibling_score": 0.6356155872344971, "answer_score": null, "sibling_qid": "MUM-2025-11-2490-Q004", "sibling_text": "crescent pump full detail", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Gear pump — construction, working, backlash, tooth profile, safety valve, why not for sea water", "cross_family": true }, { "answer_id": "PCP-BF01-001", "score": 0.4905600845813751, "sibling_score": 0.4905600845813751, "answer_score": 0.38194648623466493, "sibling_qid": "MUM-2024-11-2252-Q003", "sibling_text": "progressive cavity pump", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "What is a progressive cavity pump — construction and working", "cross_family": true }, { "answer_id": "CPFE-583-001", "score": 0.4879688024520874, "sibling_score": 0.4879688024520874, "answer_score": null, "sibling_qid": "MUM-2026-06-3391-Q008", "sibling_text": "framo pump type", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "The Framo system — what it is, how it works, and the driving mechanism", "cross_family": false } ] }, { "qid": "MUM-2026-09-3951-Q003", "text": "Pre swirl devices ?", "family": "Automation & Controls", "subtopic": "Temperature / Pressure / Level Sensor", "tid": "MUM-2026-09-3951", "tray": "new", "candidates": [ { "answer_id": "ETP-344-P03-007", "score": 0.40873077511787415, "sibling_score": 0.40873077511787415, "answer_score": null, "sibling_qid": "CHE-2026-04-0263-Q002", "sibling_text": "what is swirl and squish", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Combustion in the cylinder — atomisation, penetration, turbulence, swirl, squish", "cross_family": true }, { "answer_id": "BLR-TUBE-P02-002", "score": 0.40342846512794495, "sibling_score": 0.40342846512794495, "answer_score": null, "sibling_qid": "KOL-2023-05-3613-Q002", "sibling_text": "like before pluging what all action", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Plugging a leaking boiler tube (temporary arrest)", "cross_family": true }, { "answer_id": "AUC-SEN-02", "score": 0.39823371171951294, "sibling_score": 0.39823371171951294, "answer_score": null, "sibling_qid": "KOC-2025-09-1574-Q007", "sibling_text": "analog devices working", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "A/D and I/P signal conversion — where the loop meets the digital controller", "cross_family": false } ] }, { "qid": "MUM-2026-09-3951-Q004", "text": "New rudder advancement ?", "family": "General Marine Engineering", "subtopic": "Shafting / Propeller / CPP", "tid": "MUM-2026-09-3951", "tray": "new", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.5653246641159058, "sibling_score": 0.5653246641159058, "answer_score": null, "sibling_qid": "KOL-2021-03-1582-Q006", "sibling_text": "checks on rudder in dd", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": true }, { "answer_id": "RVSG-213-005", "score": 0.5416848659515381, "sibling_score": 0.5416848659515381, "answer_score": 0.398531836271286, "sibling_qid": "KOC-2022-05-0963-Q006", "sibling_text": "rudder jumping clearence increased what s your actions", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Jumping clearance, thrust accommodation, stock connection & overhaul", "cross_family": true }, { "answer_id": "SHAFT-CPP-005", "score": 0.5353049039840698, "sibling_score": 0.5353049039840698, "answer_score": null, "sibling_qid": "MUM-2024-04-0172-Q007", "sibling_text": "new design in propellers", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "5. Propeller types, design criteria & latest developments", "cross_family": false } ] }, { "qid": "MUM-2026-09-3951-Q005", "text": "Explain PSC?", "family": "Surveys - Statutory", "subtopic": "CSM(Continuous Machinery survey)", "tid": "MUM-2026-09-3951", "tray": "new", "candidates": [ { "answer_id": "PSC-001", "score": 0.6394708752632141, "sibling_score": 0.6394708752632141, "answer_score": 0.42565174102783204, "sibling_qid": "MUM-2025-08-0378-Q007", "sibling_text": "what is psc", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "1. What is PSC, why it is required, and its legal basis and scope", "cross_family": false }, { "answer_id": "PSC-RO-P02-001", "score": 0.6147695183753967, "sibling_score": 0.6147695183753967, "answer_score": 0.32649183124303816, "sibling_qid": "MUM-2024-08-1457-Q015", "sibling_text": "psc and its purpose", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is Port State Control, and what is its purpose?", "cross_family": false }, { "answer_id": "PSC-SURV-P01-002", "score": 0.5632534623146057, "sibling_score": 0.5632534623146057, "answer_score": null, "sibling_qid": "MUM-2026-03-0839-Q004", "sibling_text": "what is psc and cic", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is a Concentrated Inspection Campaign (CIC) under PSC?", "cross_family": false } ] }, { "qid": "MUM-2026-09-3952-Q007", "text": "Checks in AVR before putting in service ?", "family": "Drydock & Underwater Surveys", "subtopic": "Drydock / Hull Repair / Sea Chest", "tid": "MUM-2026-09-3952", "tray": "review", "candidates": [ { "answer_id": "AVR-EXC-A-001", "score": 0.6547620296478271, "sibling_score": 0.6547620296478271, "answer_score": null, "sibling_qid": "KOL-2025-12-2931-Q002", "sibling_text": "new avr installed checks to carried out", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "What is the purpose and function of the AVR?", "cross_family": true }, { "answer_id": "AVR-EXC-B-001", "score": 0.6236447095870972, "sibling_score": 0.6236447095870972, "answer_score": null, "sibling_qid": "MUM-2026-07-3722-Q002", "sibling_text": "avr checks to carry out before installing new one", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Explain the AVR working principle and control-loop operation.", "cross_family": true }, { "answer_id": "IRT-A-008", "score": 0.3915417820215225, "sibling_score": null, "answer_score": 0.3915417820215225, "sibling_qid": "", "sibling_text": "motor back from the shore workshop checks before it runs do not trust it is back from the shop verify before commissioning documentation scope of work rewind details the test certificate the insulation class and the megger figures from the workshop", "sibling_family": "", "via": "answer_title", "answer_title": "Motor back from the shore workshop - checks before it runs", "cross_family": false } ] }, { "qid": "MUM-2026-09-3952-Q008", "text": "Trimming resistor where it is used and its function ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Resistor Color Code", "tid": "MUM-2026-09-3952", "tray": "new", "candidates": [ { "answer_id": "AVR-EXC-H-001", "score": 0.644877552986145, "sibling_score": 0.644877552986145, "answer_score": null, "sibling_qid": "KOC-2022-10-1201-Q006", "sibling_text": "function of voltage trimmer where located", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "AVR — location, components and fault checks", "cross_family": true }, { "answer_id": "AVR-EXC-G-004", "score": 0.6326552629470825, "sibling_score": 0.6326552629470825, "answer_score": 0.39023374021053314, "sibling_qid": "CHE-2026-04-0383-Q010", "sibling_text": "voltage trimming circuit", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Inside the AVR: sensing, reference and control devices", "cross_family": true }, { "answer_id": "AVR-EXC-H-002", "score": 0.6129332780838013, "sibling_score": 0.6129332780838013, "answer_score": 0.4970065414905548, "sibling_qid": "KOC-2022-01-1163-Q009", "sibling_text": "why voltage trimmer", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Voltage trimmer — adjustment and biasing", "cross_family": true } ] }, { "qid": "MUM-2026-09-3953-Q001S2", "text": "He asked me to draw 3-4 diagram I dont remember which ones. He asked me why are you not practicing diagrams? This is the case with all the candidates. so next time practice diagrams as well guys, atleast Nijawan sir will ask for it", "family": "Electrical - Generator & Alternator", "subtopic": "Brushless Alternator", "tid": "MUM-2026-09-3953", "tray": "review", "candidates": [ { "answer_id": "ISB-435-003", "score": 0.6725495457649231, "sibling_score": 0.6725495457649231, "answer_score": null, "sibling_qid": "KOC-2025-11-1970-Q007", "sibling_text": "diagram how", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Intermediate shaft bearing — lubrication, cooling, cross-section and parts", "cross_family": true }, { "answer_id": "AVR-EXC-B-001", "score": 0.6528880000114441, "sibling_score": 0.6528880000114441, "answer_score": null, "sibling_qid": "KOC-2023-11-1307-Q003", "sibling_text": "draw any avr and explain", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Explain the AVR working principle and control-loop operation.", "cross_family": false }, { "answer_id": "WIDAS-SMK-003", "score": 0.6486998796463013, "sibling_score": 0.6486998796463013, "answer_score": null, "sibling_qid": "KOC-2024-06-1365-Q014", "sibling_text": "diagram", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "WIDAS arrangement — sensors, levels, panel and repeater", "cross_family": true } ] }, { "qid": "MUM-2026-09-3953-Q003", "text": "what is the use of OPM? ", "family": "Electrical - Electronics & Power Conversion", "subtopic": "", "tid": "MUM-2026-09-3953", "tray": "new", "candidates": [ { "answer_id": "OMD-003", "score": 0.4491773843765259, "sibling_score": 0.4491773843765259, "answer_score": 0.287997667491436, "sibling_qid": "MUM-2025-10-1199-Q007", "sibling_text": "working principle of omd", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Explain the OMD working principle, its types and their differences, the electrical side, and zero setting and calibration.", "cross_family": true }, { "answer_id": "AIRP-188-001", "score": 0.4097563624382019, "sibling_score": 0.4097563624382019, "answer_score": null, "sibling_qid": "CHE-2026-08-3887-Q003", "sibling_text": "odp explain", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is an ozone-depleting substance, and what is ODP?", "cross_family": true }, { "answer_id": "ODC-013", "score": 0.40742161870002747, "sibling_score": 0.40742161870002747, "answer_score": 0.3063535958528519, "sibling_qid": "KOL-2023-07-0757-Q005", "sibling_text": "odm working", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "ODMCS / ODME — purpose, components and working principle", "cross_family": true } ] }, { "qid": "MUM-2026-09-3954-Q002", "text": "Embarkation ladder ?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Pilot Ladder / Transfer", "tid": "MUM-2026-09-3954", "tray": "new", "candidates": [ { "answer_id": "PLE-468-001", "score": 0.6253150105476379, "sibling_score": 0.6253150105476379, "answer_score": null, "sibling_qid": "KOC-2025-10-1603-Q008", "sibling_text": "embarkation ladder light requirement", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "1. Lifeboat / rescue boat embarkation lighting — requirements and what makes it special (including the embarkation ladder light)", "cross_family": false }, { "answer_id": "DRG-583-A-003", "score": 0.5414317846298218, "sibling_score": 0.5414317846298218, "answer_score": null, "sibling_qid": "CHE-2026-02-0109-Q004", "sibling_text": "life boat lowering onload and off load release", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Launching procedure by falls, and where on-load and off-load release come into it", "cross_family": false }, { "answer_id": "DRG-B-007", "score": 0.5131533145904541, "sibling_score": 0.5131533145904541, "answer_score": null, "sibling_qid": "KOC-2025-07-0620-Q009", "sibling_text": "lifeboat lowering", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lowering the boat — gravity davit procedure", "cross_family": false } ] }, { "qid": "MUM-2026-09-3954-Q003", "text": "What is VCM ?", "family": "", "subtopic": "", "tid": "MUM-2026-09-3954", "tray": "new", "candidates": [ { "answer_id": "CBKR-H-001", "score": 0.44337302446365356, "sibling_score": 0.44337302446365356, "answer_score": null, "sibling_qid": "KOL-2025-05-2782-Q003", "sibling_text": "what is vcb", "sibling_family": "", "via": "sibling", "answer_title": "How do VCB and SF6 breakers work in a high-voltage system, and why are they used instead of an ACB?", "cross_family": false }, { "answer_id": "CBKR-D-ISORACK-001", "score": 0.40821921825408936, "sibling_score": 0.40821921825408936, "answer_score": null, "sibling_qid": "MUM-2025-11-1767-Q005", "sibling_text": "racking of vcb", "sibling_family": "", "via": "sibling", "answer_title": "How do you safely isolate, rack out, withdraw and prove dead an ACB/VCB before work?", "cross_family": false }, { "answer_id": "CBR-T033-I-001", "score": 0.3995780348777771, "sibling_score": 0.3995780348777771, "answer_score": null, "sibling_qid": "MUM-2026-02-1936-Q007", "sibling_text": "why vcb", "sibling_family": "", "via": "sibling", "answer_title": "What are the differences between ACB, MCB, MCCB, VCB and SF6circuit breakers, and why is each selected?", "cross_family": false } ] }, { "qid": "MUM-2026-09-3955-Q001", "text": " Recent amendments in FSS code ,IGC code ,ism code ?", "family": "SOLAS - Fire Safety", "subtopic": "FSS Code", "tid": "MUM-2026-09-3955", "tray": "new", "candidates": [ { "answer_id": "FSS-CODE-003", "score": 0.6236782670021057, "sibling_score": 0.6236782670021057, "answer_score": 0.3970273956656456, "sibling_qid": "MUM-2022-09-0044-Q009", "sibling_text": "fss code latest amendment", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "What is the latest amendment to the FSS Code, and why is the Code amended?", "cross_family": false }, { "answer_id": "IGC-IGF-004", "score": 0.5912171602249146, "sibling_score": 0.5912171602249146, "answer_score": 0.3665802121162414, "sibling_qid": "MUM-2025-12-0649-Q015", "sibling_text": "latest amendment in igc code", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Latest amendments / new regulations — IGC and gas tankers", "cross_family": true }, { "answer_id": "BC-IMSBC-005", "score": 0.5672475099563599, "sibling_score": 0.5672475099563599, "answer_score": 0.4227647066116333, "sibling_qid": "MUM-2026-09-3968-Q005", "sibling_text": "latest amendments of ism fss", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "5. Latest IMSBC Code amendments", "cross_family": true } ] }, { "qid": "MUM-2026-09-3955-Q002", "text": " Drydock stability criteria ?", "family": "Ship Construction & Stability", "subtopic": "Static / Dynamic Stability/damage stability", "tid": "MUM-2026-09-3955", "tray": "review", "candidates": [ { "answer_id": "DUS-P2-04", "score": 0.6571833491325378, "sibling_score": 0.6571833491325378, "answer_score": 0.6240009963512421, "sibling_qid": "MUM-2023-06-0107-Q007", "sibling_text": "entering dry dock how ll you make sure that stability is maintained", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Stability requirements before entering drydock", "cross_family": true }, { "answer_id": "DAM-STAB-P03-002", "score": 0.6512969136238098, "sibling_score": 0.6512969136238098, "answer_score": null, "sibling_qid": "KOL-2026-07-4264-Q005", "sibling_text": "damage stability criteria for your ship", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "General cargo-ship damage stability criteria and requirements", "cross_family": false }, { "answer_id": "DUS-P1-01", "score": 0.6352659463882446, "sibling_score": 0.6352659463882446, "answer_score": null, "sibling_qid": "MUM-2026-09-3964-Q003", "sibling_text": "with respect to stability what are the actions we take as 2e before entering drydock", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Drydock preparation as 2E — full workflow from office confirmation to entry", "cross_family": true } ] }, { "qid": "MUM-2026-09-3955-Q003", "text": "How foam is generated ? How we get to know 97% water mixes with 3% foam ?", "family": "SOLAS - Fire Safety", "subtopic": "Foam System / Monitor", "tid": "MUM-2026-09-3955", "tray": "new", "candidates": [ { "answer_id": "FOAM-SYS-P04-002", "score": 0.6337456703186035, "sibling_score": 0.6337456703186035, "answer_score": 0.47624303698539733, "sibling_qid": "MUM-2020-12-0005-Q002", "sibling_text": "foam proportionator working foam concentrate which solution how much percentage water and how much concentrate name of the concentrate", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "1. Foam proportioner — how it works", "cross_family": false }, { "answer_id": "FOAM-SYS-P04-003", "score": 0.6193215250968933, "sibling_score": 0.6193215250968933, "answer_score": 0.5074781715869904, "sibling_qid": "CHE-2026-03-0128-Q004", "sibling_text": "how foam generated", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "2. How mechanical foam is produced", "cross_family": false }, { "answer_id": "FOAM-SYS-P05-005", "score": 0.6032732129096985, "sibling_score": 0.6032732129096985, "answer_score": null, "sibling_qid": "KOL-2025-09-1041-Q002", "sibling_text": "what is foam concentration what is foam", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "5. Foam types carried onboard and how the correct foam is selected", "cross_family": false } ] }, { "qid": "MUM-2026-09-3956-Q006", "text": "Foaming and priming in boiler ?", "family": "Boilers - Operations & Firing", "subtopic": "Scum / Blow Down", "tid": "MUM-2026-09-3956", "tray": "new", "candidates": [ { "answer_id": "BLR-OPS-005", "score": 0.610196590423584, "sibling_score": 0.610196590423584, "answer_score": 0.4474804043769836, "sibling_qid": "KOL-2023-07-3628-Q001", "sibling_text": "boiler raising steam after survey", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Raising steam after a boiler survey, and guiding the Fourth Engineer to fire it from cold.", "cross_family": false }, { "answer_id": "BLR-OPS-006", "score": 0.6101661324501038, "sibling_score": 0.6101661324501038, "answer_score": null, "sibling_qid": "MUM-2023-09-1061-Q002", "sibling_text": "warming up of boiler", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Explain the warming up of a boiler.", "cross_family": false }, { "answer_id": "UPT-FIRE-001", "score": 0.6097745299339294, "sibling_score": 0.6097745299339294, "answer_score": null, "sibling_qid": "KOL-2019-11-3288-Q002", "sibling_text": "actions as 2 e on boiler uptake fire", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "The 4/E reports an uptake fire — your actions as 2/E", "cross_family": false } ] }, { "qid": "MUM-2026-09-3956-Q007", "text": "Foaming in boiler How to reduce it ?", "family": "Boilers - Operations & Firing", "subtopic": "Scum / Blow Down", "tid": "MUM-2026-09-3956", "tray": "new", "candidates": [ { "answer_id": "BWTEST-A-002", "score": 0.6458526849746704, "sibling_score": 0.6458526849746704, "answer_score": null, "sibling_qid": "KOL-2025-11-1826-Q001", "sibling_text": "boiler dissolved solid increased how to reduce", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What does high boiler-water chloride, salinity or TDS indicate, and what action is required?", "cross_family": true }, { "answer_id": "BLR-BSP-001", "score": 0.634145200252533, "sibling_score": 0.634145200252533, "answer_score": null, "sibling_qid": "MUM-2025-06-2325-Q002", "sibling_text": "actions in case of boiler panting", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Boiler panting (combustion pulsation): causes, symptoms, and your actions as 2/E", "cross_family": false }, { "answer_id": "SBD-002", "score": 0.627015233039856, "sibling_score": 0.627015233039856, "answer_score": null, "sibling_qid": "KOL-2021-01-0458-Q007", "sibling_text": "boiler blowdown scum blowdown", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "What is scum blow down and bottom blow down — why and when, the valve opening sequence, and what you check afterwards? How do you instruct the junior engineer or TME?", "cross_family": false } ] }, { "qid": "MUM-2026-09-3958-Q002", "text": "SAFCON survey preparation ?", "family": "Surveys - Statutory", "subtopic": "Safety Construction / Cargo Safety Cert", "tid": "MUM-2026-09-3958", "tray": "new", "candidates": [ { "answer_id": "SEQ-330-002", "score": 0.6116066575050354, "sibling_score": 0.6116066575050354, "answer_score": null, "sibling_qid": "MUM-2024-03-0167-Q003", "sibling_text": "safety survey preparation", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Preparing the ship for the Safety Equipment survey as Second Engineer", "cross_family": false }, { "answer_id": "LLC-SURV-P01-001", "score": 0.5926453471183777, "sibling_score": 0.5926453471183777, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q005", "sibling_text": "preparation of safcon and load line survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Load line survey preparation as Second Engineer: engine-room scope, machinery openings, tanks/vents, valves and overboard checks", "cross_family": false }, { "answer_id": "MSB-ESB-B-004", "score": 0.5877827405929565, "sibling_score": 0.5877827405929565, "answer_score": null, "sibling_qid": "NOI-2026-09-0011-Q001", "sibling_text": "preparation for msb survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "MSB survey — what you demonstrate to the surveyor", "cross_family": false } ] }, { "qid": "MUM-2026-09-3958-Q003", "text": "ISPS implementation on a new ship ?", "family": "ISPS", "subtopic": "ISPS Code / Security Level", "tid": "MUM-2026-09-3958", "tray": "new", "candidates": [ { "answer_id": "ISPS-SL-001", "score": 0.6310645341873169, "sibling_score": 0.6310645341873169, "answer_score": 0.38182296752929684, "sibling_qid": "KOL-2017-01-0052-Q005", "sibling_text": "wot is isps how to implement isps on ship", "sibling_family": "ISPS", "via": "sibling", "answer_title": "The ISPS Code — purpose, scope and the SOLAS link", "cross_family": false }, { "answer_id": "ISM-AUD-P03-004", "score": 0.6096034049987793, "sibling_score": 0.6096034049987793, "answer_score": null, "sibling_qid": "MUM-2026-09-3958-Q004", "sibling_text": "ism implementation on a new ship", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Ensuring ISM / SMS is implemented and followed onboard", "cross_family": true }, { "answer_id": "ISPS-SL-006", "score": 0.5143198370933533, "sibling_score": 0.5143198370933533, "answer_score": null, "sibling_qid": "KOC-2023-10-0231-Q004", "sibling_text": "how to obtain isps certificate for new ship", "sibling_family": "ISPS", "via": "sibling", "answer_title": "ISPS / ISSC certificates and documents — issue, audit and verification", "cross_family": false } ] }, { "qid": "MUM-2026-09-3958-Q006", "text": "propeller efficiency and pre swril ?", "family": "Shafting, Propeller & Rudder", "subtopic": "Stern Tube / Shafting / Propeller / Rudder", "tid": "MUM-2026-09-3958", "tray": "review", "candidates": [ { "answer_id": "SPR-STERN-001", "score": 0.6721753478050232, "sibling_score": 0.6721753478050232, "answer_score": 0.4894466698169708, "sibling_qid": "CHE-2026-09-3918-Q004", "sibling_text": "propeller efficiency", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Propeller design factors, efficiency, handedness & material", "cross_family": false }, { "answer_id": "RES-PROP-P03-002", "score": 0.6223419308662415, "sibling_score": 0.6223419308662415, "answer_score": 0.486367517709732, "sibling_qid": "KOL-2020-01-0383-Q002", "sibling_text": "propeller efficiency", "sibling_family": "", "via": "sibling", "answer_title": "2. Propulsive coefficients: QPC, hull/propeller/relative-rotative efficiency, wake, slip and propeller curves", "cross_family": false }, { "answer_id": "SPR-STERN-004", "score": 0.5928852558135986, "sibling_score": 0.5928852558135986, "answer_score": 0.45909009873867035, "sibling_qid": "KOL-2022-03-3523-Q003", "sibling_text": "rake of propeller advantages", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Propeller rake & skew", "cross_family": false } ] }, { "qid": "MUM-2026-09-3958-Q007", "text": "How do you know if the hull is fouled or propeller fouled when the vessel drops performance ?", "family": "Drydock & Underwater Surveys", "subtopic": "Hull Painting / Antifouling", "tid": "MUM-2026-09-3958", "tray": "new", "candidates": [ { "answer_id": "DDI-003", "score": 0.6327454447746277, "sibling_score": 0.6327454447746277, "answer_score": null, "sibling_qid": "MUM-2022-11-2719-Q010", "sibling_text": "after drydock as 2ewhat all things to cheek in propeller rudden sit before flooding few more result fail", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Before flooding the dock, what checks do you carry out — in the engine room, and on the propeller, rudder and stern tube?", "cross_family": false }, { "answer_id": "PROP-RP-004", "score": 0.6172952651977539, "sibling_score": 0.6172952651977539, "answer_score": null, "sibling_qid": "KOL-2024-12-3733-Q002", "sibling_text": "propeller is damaged needs to be changed as 2e what will you check", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Blade damage, repair zones, polishing and balancing", "cross_family": false }, { "answer_id": "PROP-PIL-A-002", "score": 0.6081187129020691, "sibling_score": 0.6081187129020691, "answer_score": null, "sibling_qid": "KOL-2019-11-3298-Q004", "sibling_text": "propeller is ready to fit in dry dock what u will check wanted to listen bedding how will check if bed properly persian blue method what u will scrap daft or propeller 5 forgot", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Bedding on the taper and fit verification", "cross_family": false } ] }, { "qid": "MUM-2026-09-3958-Q008", "text": "LLMC in detail ?", "family": "Other Conventions", "subtopic": "CLC / Civil Liability", "tid": "MUM-2026-09-3958", "tray": "new", "candidates": [ { "answer_id": "CLC-CIV-B-003", "score": 0.6130761504173279, "sibling_score": 0.6130761504173279, "answer_score": 0.2883608013391495, "sibling_qid": "KOL-2025-09-1083-Q004", "sibling_text": "llmc", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "LLMC: purpose, scope and limitation of maritime claims", "cross_family": false }, { "answer_id": "ISMNC-002", "score": 0.3863759934902191, "sibling_score": 0.3863759934902191, "answer_score": null, "sibling_qid": "MUM-2026-01-0685-Q005", "sibling_text": "mlc mnc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a major non-conformity under the ISM Code? Give the definition and name some.", "cross_family": true }, { "answer_id": "ENG-NOM-006", "score": 0.30264114439487455, "sibling_score": null, "answer_score": 0.30264114439487455, "sibling_qid": "", "sibling_text": "short form asks smc c lmc and me vs mc quickly smc c super long stroke man programme camshaft controlled compact lmc l long stroke the l is the stroke letter not a control or compact letter", "sibling_family": "", "via": "answer_title", "answer_title": "Short-form asks: SMC-C, LMC, and ME vs MC quickly", "cross_family": false } ] }, { "qid": "MUM-2026-09-3959-Q001", "text": "Liner diameter ?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-09-3959", "tray": "new", "candidates": [ { "answer_id": "CYL-LINER-P01-004", "score": 0.6053750514984131, "sibling_score": 0.6053750514984131, "answer_score": 0.4192645877599716, "sibling_qid": "KOC-2024-08-1855-Q006", "sibling_text": "ovality limit of liner", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Ovality: measuring it and reading the cause", "cross_family": true }, { "answer_id": "CYL-LINER-P01-001", "score": 0.5867787599563599, "sibling_score": 0.5867787599563599, "answer_score": null, "sibling_qid": "MUM-2022-07-2135-Q006", "sibling_text": "liner gauging", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Carrying out main-engine liner calibration (gauging)", "cross_family": true }, { "answer_id": "CYL-LINER-P02-009", "score": 0.5699561834335327, "sibling_score": 0.5699561834335327, "answer_score": null, "sibling_qid": "MUM-2021-09-1010-Q007", "sibling_text": "what is ridging of liner", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L9 · T044-PART_02-G009High", "cross_family": true } ] }, { "qid": "MUM-2026-09-3959-Q002", "text": "Liner wear limit 0.4 %of nominal diameter ?", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "MUM-2026-09-3959", "tray": "new", "candidates": [ { "answer_id": "CYL-LINER-P01-003", "score": 0.6458080410957336, "sibling_score": 0.6458080410957336, "answer_score": 0.47314382195472715, "sibling_qid": "KOC-2026-08-2146-Q014", "sibling_text": "maximum wear down of liner", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "From the readings: wear, wear rate, units and renewal limits", "cross_family": false }, { "answer_id": "CYL-LINER-P01-001", "score": 0.6277382969856262, "sibling_score": 0.6277382969856262, "answer_score": null, "sibling_qid": "MUM-2023-08-2184-Q001", "sibling_text": "liner calibration 0vality rate of wear", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Carrying out main-engine liner calibration (gauging)", "cross_family": false }, { "answer_id": "CYL-LINER-P01-002", "score": 0.6065365076065063, "sibling_score": 0.6065365076065063, "answer_score": null, "sibling_qid": "CHE-2026-03-0492-Q001", "sibling_text": "liner calibration how it is done how to calculate wear rate ovality no of position to be taken and their positions", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Getting true readings: tool, position and temperature", "cross_family": false } ] }, { "qid": "MUM-2026-09-3960-Q002", "text": "Persistent and non persistent oil- annex 1 ?", "family": "Other Conventions", "subtopic": "IMDG Code", "tid": "MUM-2026-09-3960", "tray": "new", "candidates": [ { "answer_id": "CLC-CIV-A-003", "score": 0.6242980360984802, "sibling_score": 0.6242980360984802, "answer_score": 0.43767809569835664, "sibling_qid": "KOC-2024-03-0312-Q011", "sibling_text": "persistant oil", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "CLC scope — persistent oil pollution damage", "cross_family": false }, { "answer_id": "ODC-008", "score": 0.49404069781303406, "sibling_score": 0.49404069781303406, "answer_score": null, "sibling_qid": "KOC-2024-10-0438-Q007", "sibling_text": "annex 1 discharge criteria how oil discharged in outside special area", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Cargo-area discharge criteria for an oil tanker — outside a special area", "cross_family": true }, { "answer_id": "REEF-COMP-003", "score": 0.46431758999824524, "sibling_score": 0.46431758999824524, "answer_score": null, "sibling_qid": "MUM-2026-09-3997-Q011", "sibling_text": "refer oil properties", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Refrigeration-compressor lube oil — properties, selection, and its jobs beyond lubrication", "cross_family": true } ] }, { "qid": "MUM-2026-09-3960-Q003", "text": "Calculating of GT and NT oil tanker ?", "family": "Cargo Ops - Tankers", "subtopic": "Ship Construction", "tid": "MUM-2026-09-3960", "tray": "new", "candidates": [ { "answer_id": "TONN-007", "score": 0.6146777272224426, "sibling_score": 0.6146777272224426, "answer_score": 0.4801500380039215, "sibling_qid": "KOC-2023-03-0154-Q003", "sibling_text": "gt and nt of ship definition unit of both", "sibling_family": "", "via": "sibling", "answer_title": "Differentiate GT, NT, GRT/NRT, DWT, Lightweight and Displacement", "cross_family": false }, { "answer_id": "TKR-TYPE-001", "score": 0.5797130465507507, "sibling_score": 0.5797130465507507, "answer_score": null, "sibling_qid": "KOL-2022-10-0689-Q033", "sibling_text": "const diff between product and crude oip tanker", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "1. Crude oil tanker vs product tanker / carrier — construction and cargo-area differences", "cross_family": false }, { "answer_id": "TKR-TYPE-003", "score": 0.570284903049469, "sibling_score": 0.570284903049469, "answer_score": null, "sibling_qid": "KOL-2017-02-0061-Q001", "sibling_text": "wat type of ships sailed on tanker types of tankers hw do we differentiate between two types of tankers dead weight range of all types", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "3. Tanker size classes — Panamax, Aframax, Suezmax, VLCC, ULCC", "cross_family": false } ] }, { "qid": "MUM-2026-09-3960-Q008", "text": "A60 bulk head where in gas tanker, location ?", "family": "Cargo Ops - Gas Carriers", "subtopic": "IGC / Gas Carrier Safety", "tid": "MUM-2026-09-3960", "tray": "new", "candidates": [ { "answer_id": "A60-BCLASS-006", "score": 0.6473633646965027, "sibling_score": 0.6473633646965027, "answer_score": null, "sibling_qid": "KOC-2024-12-0490-Q006", "sibling_text": "a60 bulkhead where in lpg how will you know bulkhead details", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "A-class insulation — material, side, and the ‘formula’", "cross_family": true }, { "answer_id": "SFP-AB-003", "score": 0.613476037979126, "sibling_score": 0.613476037979126, "answer_score": null, "sibling_qid": "MUM-2025-10-0499-Q006", "sibling_text": "a60 bulkhead", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "What is an A-60 bulkhead, and what does SOLAS require?", "cross_family": true }, { "answer_id": "A60-BCLASS-001", "score": 0.6131779551506042, "sibling_score": 0.6131779551506042, "answer_score": null, "sibling_qid": "KOL-2018-02-0150-Q002", "sibling_text": "a60 bulkhead", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "A-60 / Class ‘A’ fire division — what it is", "cross_family": true } ] }, { "qid": "MUM-2026-09-3961-Q003", "text": "LPG safeties on deck ?", "family": "Cargo Ops - Tankers", "subtopic": "Tanker Safety / Deck", "tid": "MUM-2026-09-3961", "tray": "new", "candidates": [ { "answer_id": "IGC-GAS-010", "score": 0.6189297437667847, "sibling_score": 0.6189297437667847, "answer_score": 0.49026980698108674, "sibling_qid": "KOC-2026-05-0030-Q001", "sibling_text": "safeties on gas tanker on deck", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Cargo-handling deck safeties and precautions (loading and discharge)", "cross_family": true }, { "answer_id": "TNK-SAFE-BF26-003", "score": 0.617439329624176, "sibling_score": 0.617439329624176, "answer_score": null, "sibling_qid": "MUM-2024-09-1460-Q007", "sibling_text": "tankers deck safeties", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What safeties, including electrical safeties and Ex ratings, are provided on the deck of a tanker?", "cross_family": false }, { "answer_id": "IGC-GAS-015", "score": 0.6052981615066528, "sibling_score": 0.6052981615066528, "answer_score": null, "sibling_qid": "MUM-2026-09-3981-Q014", "sibling_text": "lng tank safeties", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Cargo tank and critical-valve safeties", "cross_family": false } ] }, { "qid": "MUM-2026-09-3961-Q004", "text": "Why water spray system used onboard ?", "family": "Cargo Ops - Tankers", "subtopic": "IG System", "tid": "MUM-2026-09-3961", "tray": "new", "candidates": [ { "answer_id": "FIRE-P02-04", "score": 0.6431772112846375, "sibling_score": 0.6431772112846375, "answer_score": 0.42586199641227723, "sibling_qid": "KOL-2023-07-0759-Q005", "sibling_text": "sprinkler system and why hyper mist on board rather than sprinkler", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist vs sprinkler and CO₂ — comparison and coexistence", "cross_family": true }, { "answer_id": "FIRE-P02-05", "score": 0.5577991604804993, "sibling_score": 0.5577991604804993, "answer_score": null, "sibling_qid": "KOC-2026-02-0836-Q001", "sibling_text": "sprinkler system bz i am from passenger ship", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Automatic sprinkler system — arrangement and normal working", "cross_family": true }, { "answer_id": "FIXED-FF-B-001", "score": 0.5209108591079712, "sibling_score": 0.5209108591079712, "answer_score": 0.39204320311546326, "sibling_qid": "MUM-2022-09-0048-Q001", "sibling_text": "fire fighting system onboard", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fixed fire-fighting systems carried onboard and the risks they protect", "cross_family": true } ] }, { "qid": "MUM-2026-09-3961-Q005", "text": "How to calculate DCP for gas tanker ?", "family": "SOLAS - Fire Safety", "subtopic": "DCP / Dry Powder", "tid": "MUM-2026-09-3961", "tray": "review", "candidates": [ { "answer_id": "DCP-FIXED-A-004", "score": 0.7024634480476379, "sibling_score": 0.7024634480476379, "answer_score": null, "sibling_qid": "KOC-2026-02-0809-Q001", "sibling_text": "draw fixed dcp in gas tankers", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Why DCP on gas carriers, not foam/water/CO2, and the extinguishing principle", "cross_family": false }, { "answer_id": "DCP-FIXED-A-003", "score": 0.6642992496490479, "sibling_score": 0.6642992496490479, "answer_score": null, "sibling_qid": "CHE-2026-04-0164-Q004", "sibling_text": "dcp calculation", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Capacities, pressures, relief settings, regulations and calculation", "cross_family": false }, { "answer_id": "DCP-B-001", "score": 0.573265016078949, "sibling_score": 0.573265016078949, "answer_score": null, "sibling_qid": "KOC-2023-03-0158-Q002", "sibling_text": "type of ship lpg fixed dcp system draw and explain cross on working and chemical name and what chemical used for preventing caking maintenance", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fixed DCP system — maintenance, agitation, sampling and survey preparation", "cross_family": false } ] }, { "qid": "MUM-2026-09-3961-Q007", "text": "How to calculate GT and NT of ship?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "SFOC", "tid": "MUM-2026-09-3961", "tray": "new", "candidates": [ { "answer_id": "TONN-007", "score": 0.632112979888916, "sibling_score": 0.632112979888916, "answer_score": 0.44209244549274446, "sibling_qid": "KOC-2023-03-0154-Q003", "sibling_text": "gt and nt of ship definition unit of both", "sibling_family": "", "via": "sibling", "answer_title": "Differentiate GT, NT, GRT/NRT, DWT, Lightweight and Displacement", "cross_family": false }, { "answer_id": "TONN-001", "score": 0.47238689661026, "sibling_score": 0.47238689661026, "answer_score": null, "sibling_qid": "KOL-2025-09-1044-Q006", "sibling_text": "gross tonnage how to calculate", "sibling_family": "", "via": "sibling", "answer_title": "Gross Tonnage (GT / GRT) — basis, units, significance", "cross_family": false }, { "answer_id": "GM-META-003", "score": 0.46357202529907227, "sibling_score": 0.46357202529907227, "answer_score": 0.4523130863904953, "sibling_qid": "MUM-2026-04-0925-Q003", "sibling_text": "metacentric height value of gm of your ship", "sibling_family": "", "via": "sibling", "answer_title": "Finding the initial GM on board", "cross_family": false } ] }, { "qid": "MUM-2026-09-3961-Q009", "text": "New ISM amendment ?", "family": "IMO Structure & Conventions", "subtopic": "SOLAS Chapters", "tid": "MUM-2026-09-3961", "tray": "new", "candidates": [ { "answer_id": "BC-IMSBC-005", "score": 0.6103016138076782, "sibling_score": 0.6103016138076782, "answer_score": 0.32655001878738404, "sibling_qid": "MUM-2026-09-3961-Q013", "sibling_text": "latest ism amendment", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "5. Latest IMSBC Code amendments", "cross_family": true }, { "answer_id": "COT-P02-10", "score": 0.5667893886566162, "sibling_score": 0.5667893886566162, "answer_score": null, "sibling_qid": "KOC-2023-10-0221-Q001", "sibling_text": "ig new amendments", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "State and explain the latest statutory amendments affecting tanker inert-gas systems, including applicability and practical changes on board.", "cross_family": true }, { "answer_id": "IBC-BCH-B-003", "score": 0.5249018669128418, "sibling_score": 0.5249018669128418, "answer_score": null, "sibling_qid": "KOL-2022-05-0629-Q002", "sibling_text": "new amendment in ibc code", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "IBC Code — detainable deficiencies and latest amendments", "cross_family": true } ] }, { "qid": "MUM-2026-09-3961-Q010", "text": "Effects on engine when propeller and hull is fouled ?", "family": "Drydock & Underwater Surveys", "subtopic": "Hull Painting / Antifouling", "tid": "MUM-2026-09-3961", "tray": "new", "candidates": [ { "answer_id": "DDI-003", "score": 0.6457890868186951, "sibling_score": 0.6457890868186951, "answer_score": null, "sibling_qid": "MUM-2022-11-2719-Q010", "sibling_text": "after drydock as 2ewhat all things to cheek in propeller rudden sit before flooding few more result fail", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Before flooding the dock, what checks do you carry out — in the engine room, and on the propeller, rudder and stern tube?", "cross_family": false }, { "answer_id": "PROP-PIL-A-002", "score": 0.5947810411453247, "sibling_score": 0.5947810411453247, "answer_score": null, "sibling_qid": "KOL-2018-04-3136-Q002", "sibling_text": "bedding of propeller", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Bedding on the taper and fit verification", "cross_family": false }, { "answer_id": "PROP-PIL-A-001", "score": 0.5723367929458618, "sibling_score": 0.5723367929458618, "answer_score": null, "sibling_qid": "MUM-2025-05-0271-Q006", "sibling_text": "propeller fitting and removal and cross question wanted to hear about bedding of propeller", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Pilgrim / SKF hydraulic nut — fitting, push-up, extraction and removal", "cross_family": false } ] }, { "qid": "MUM-2026-09-3961-Q011", "text": "You have very short time to take over a ship ,tell five important points you will ask to reliver ?", "family": "ISM Code", "subtopic": "2E Responsibility", "tid": "MUM-2026-09-3961", "tray": "review", "candidates": [ { "answer_id": "JOIN-HDVR-001", "score": 0.6994994282722473, "sibling_score": 0.6994994282722473, "answer_score": null, "sibling_qid": "MUM-2024-08-0200-Q001", "sibling_text": "1 as a 2 e you are taking over a ship from another msnagement how will you confirm that ism related all things are in place", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Taking over a ship from new management — confirming the ISM/SMS is in place and being followed", "cross_family": false }, { "answer_id": "ISM-2E-C-001", "score": 0.5861349701881409, "sibling_score": 0.5861349701881409, "answer_score": null, "sibling_qid": "KOC-2023-01-0137-Q004", "sibling_text": "ism preparation all paper work valid all certificates valid ows is working properly all alarms are working at the end he said he just wants to hear 5 6 very important points that s all", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM audit / survey preparation as Second Engineer — beyond the paperwork", "cross_family": false }, { "answer_id": "ISM-DPA-006", "score": 0.5818793177604675, "sibling_score": 0.5818793177604675, "answer_score": null, "sibling_qid": "CHE-2025-08-0031-Q017", "sibling_text": "going for management review meeting with dpa from ship how will u present for engine room he is expecting before meeting you have to conduct the meeting in engine room and ask for crews problem", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Presenting the engine room in a management review meeting with the DPA", "cross_family": false } ] }, { "qid": "MUM-2026-09-3961-Q012", "text": "Related to claims how the damage assessment and reporting procedure done as per your company ?", "family": "Surveys - Statutory", "subtopic": "Defects on Board / Class Action", "tid": "MUM-2026-09-3961", "tray": "new", "candidates": [ { "answer_id": "ISM-AUD-P03-003", "score": 0.5093700885772705, "sibling_score": 0.5093700885772705, "answer_score": null, "sibling_qid": "MUM-2026-03-0853-Q005", "sibling_text": "hull damage has taken place how will you report to your company following sms", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "Non-conformity, major non-conformity and incident reporting under SMS", "cross_family": true }, { "answer_id": "ESP-B-002", "score": 0.4776001572608948, "sibling_score": 0.4776001572608948, "answer_score": null, "sibling_qid": "MUM-2025-12-0623-Q004", "sibling_text": "what is esp i told everything substantial corrosion and 2 surveyors will conduct the survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Close-up survey, thickness gauging, substantial corrosion & renewal criteria", "cross_family": false }, { "answer_id": "DS-P04-001", "score": 0.46588099002838135, "sibling_score": 0.46588099002838135, "answer_score": null, "sibling_qid": "KOL-2025-09-1046-Q003", "sibling_text": "damage stability he want to know all three assessment", "sibling_family": "", "via": "sibling", "answer_title": "Assessment methods: deterministic, probabilistic and the index calculation", "cross_family": false } ] }, { "qid": "MUM-2026-09-3961-Q015", "text": "Latest change in DMLC 2 ?", "family": "MLC", "subtopic": "MLC / DMLC / Work-Rest", "tid": "MUM-2026-09-3961", "tray": "new", "candidates": [ { "answer_id": "LSA-LB-A-007", "score": 0.5722718238830566, "sibling_score": 0.5722718238830566, "answer_score": null, "sibling_qid": "MUM-2026-03-0871-Q006", "sibling_text": "dmlc part 1 what new thing added recently", "sibling_family": "MLC", "via": "sibling", "answer_title": "On-load release gear — the 'new design of boat hooks'", "cross_family": false }, { "answer_id": "MLC-WRH-B-001", "score": 0.5142230987548828, "sibling_score": 0.5142230987548828, "answer_score": null, "sibling_qid": "MUM-2026-04-0877-Q003", "sibling_text": "dmlc 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "MEGI-304-002", "score": 0.48521456122398376, "sibling_score": 0.48521456122398376, "answer_score": null, "sibling_qid": "MUM-2026-03-1296-Q005", "sibling_text": "latest modification in df engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "2. ME-GI / ME-GA / ME-G and recent dual-fuel engine advancements", "cross_family": true } ] }, { "qid": "MUM-2026-09-3961-Q016", "text": "Tanker grounded what all plan you will refer ?", "family": "Refrigeration & AC", "subtopic": "Refer Safety", "tid": "MUM-2026-09-3961", "tray": "new", "candidates": [ { "answer_id": "DS-P04-003", "score": 0.5912030935287476, "sibling_score": 0.5912030935287476, "answer_score": null, "sibling_qid": "MUM-2026-03-0871-Q008", "sibling_text": "if tanker grounding then for stability which manual to be refer", "sibling_family": "", "via": "sibling", "answer_title": "The damage stability booklet: contents and onboard use", "cross_family": false }, { "answer_id": "DUS-P1-02", "score": 0.5441197156906128, "sibling_score": 0.5441197156906128, "answer_score": null, "sibling_qid": "MUM-2026-06-3587-Q006", "sibling_text": "dry dock plan", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Plans, drawings and special tools kept ready for drydock — engine-department view", "cross_family": true }, { "answer_id": "DUS-P1-01", "score": 0.5359682440757751, "sibling_score": 0.5359682440757751, "answer_score": null, "sibling_qid": "KOL-2026-05-0050-Q004", "sibling_text": "drydock as 2nd what plans to you need", "sibling_family": "", "via": "sibling", "answer_title": "Drydock preparation as 2E — full workflow from office confirmation to entry", "cross_family": false } ] }, { "qid": "MUM-2026-09-3962-Q002", "text": "Vent cock purpose?", "family": "Cargo Ops - Tankers", "subtopic": "IG System", "tid": "MUM-2026-09-3962", "tray": "new", "candidates": [ { "answer_id": "VENT-HD-006", "score": 0.5912762880325317, "sibling_score": 0.5912762880325317, "answer_score": 0.46030795872211455, "sibling_qid": "KOL-2017-03-0065-Q003", "sibling_text": "explain do tank vent", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Tank vent / air-pipe arrangement, and why tanks require ventilation", "cross_family": true }, { "answer_id": "MR-DS-PV-B-003", "score": 0.5910636782646179, "sibling_score": 0.5910636782646179, "answer_score": null, "sibling_qid": "KOC-2023-03-0154-Q013", "sibling_text": "automatic vent valve before deck seal", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "3. Alarms, trips, valves, and abnormal conditions of the deck seal", "cross_family": false }, { "answer_id": "MR-DS-PV-B-004", "score": 0.5810537338256836, "sibling_score": 0.5810537338256836, "answer_score": 0.4694704324007034, "sibling_qid": "MUM-2022-11-0069-Q009", "sibling_text": "high velocity vent where it fitted venting capacity of high velocity vent good surveyor gives hint do u can answer", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "4. Purpose, arrangement, and safety function of the mast riser / high-velocity vent", "cross_family": false } ] }, { "qid": "MUM-2026-09-3962-Q009", "text": "Backlash ? how to measure ?purpose ?", "family": "Pumps - Centrifugal & PD", "subtopic": "Gear / Screw / Mono Pump", "tid": "MUM-2026-09-3962", "tray": "new", "candidates": [ { "answer_id": "PCD-P05-03", "score": 0.41715607047080994, "sibling_score": 0.41715607047080994, "answer_score": null, "sibling_qid": "KOL-2017-08-1854-Q004", "sibling_text": "explain backlash and how is it taken", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Gear pump — construction, working, backlash, tooth profile, safety valve, why not for sea water", "cross_family": false }, { "answer_id": "PURIF-172-005", "score": 0.4129127264022827, "sibling_score": 0.4129127264022827, "answer_score": null, "sibling_qid": "MUM-2022-11-1369-Q003", "sibling_text": "purpose", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Principle, disc stack, separation formula & interface", "cross_family": true }, { "answer_id": "RES-PROP-P02-001", "score": 0.40263640880584717, "sibling_score": 0.40263640880584717, "answer_score": null, "sibling_qid": "KOL-2024-11-0884-Q002", "sibling_text": "model test purpose", "sibling_family": "", "via": "sibling", "answer_title": "Ship model and towing tests — purpose, scaling and resistance prediction", "cross_family": false } ] }, { "qid": "MUM-2026-09-3963-Q001", "text": "Type of Me and AE ?", "family": "Heat Exchangers & Coolers", "subtopic": "JCW System", "tid": "MUM-2026-09-3963", "tray": "new", "candidates": [ { "answer_id": "AEME-DIFF-001", "score": 0.6245595216751099, "sibling_score": 0.6245595216751099, "answer_score": null, "sibling_qid": "MUM-2025-05-2295-Q004", "sibling_text": "types of me and ae worked on", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": true }, { "answer_id": "ENG-NOM-001", "score": 0.5566588044166565, "sibling_score": 0.5566588044166565, "answer_score": 0.2738756492733955, "sibling_qid": "NOI-2026-09-0008-Q002", "sibling_text": "me and ae type and nomenclature", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Nomenclature of ME and AE (asked together)", "cross_family": true }, { "answer_id": "ENG-NOM-005", "score": 0.4845610558986664, "sibling_score": 0.4845610558986664, "answer_score": null, "sibling_qid": "MUM-2026-09-3915-Q001", "sibling_text": "type of engine me and ae", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "MUM-2026-09-3963-Q003", "text": "How to overhaul AE cylinder head and cross questions ?", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Cover / Head", "tid": "MUM-2026-09-3963", "tray": "new", "candidates": [ { "answer_id": "XHEAD-303-007", "score": 0.6340816617012024, "sibling_score": 0.6340816617012024, "answer_score": null, "sibling_qid": "KOC-2026-02-2003-Q007", "sibling_text": "cylinder head overhaul", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Crosshead inspection, survey and overhaul, including in-place overhaul", "cross_family": false }, { "answer_id": "CCH-590-002", "score": 0.6276675462722778, "sibling_score": 0.6276675462722778, "answer_score": null, "sibling_qid": "CHE-2026-03-0486-Q010", "sibling_text": "cylinder head overhauling and checks", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "How do you pressure test a cylinder head, and how do you find and rectify a leak from it?", "cross_family": false }, { "answer_id": "PIST-CSI-C-002", "score": 0.6067279577255249, "sibling_score": 0.6067279577255249, "answer_score": null, "sibling_qid": "CHE-2026-02-0484-Q006", "sibling_text": "during and after overhauling what checks u do in ae cylinder head", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Piston pressure / hydraulic leak testing after overhaul", "cross_family": true } ] }, { "qid": "MUM-2026-09-3963-Q006", "text": "Hydraulic oil 6 months test ? Where to take sample", "family": "MARPOL - General & Compliance", "subtopic": "Bunker Sample Storage", "tid": "MUM-2026-09-3963", "tray": "new", "candidates": [ { "answer_id": "LO-TEST-P01-003", "score": 0.5861736536026001, "sibling_score": 0.5861736536026001, "answer_score": null, "sibling_qid": "MUM-2026-09-3963-Q007", "sibling_text": "hydraulic oil test report", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Reading a shore analysis report: metals, FTIR and red flags", "cross_family": true }, { "answer_id": "LO-TEST-P01-002", "score": 0.582268238067627, "sibling_score": 0.582268238067627, "answer_score": 0.5271117687225342, "sibling_qid": "MUM-2025-12-2500-Q002", "sibling_text": "chief engg told to take lube oil sample for testing how to take it", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Taking the sample: where, how and how often", "cross_family": true }, { "answer_id": "OIL-FUEL-TEST-001", "score": 0.5734506249427795, "sibling_score": 0.5734506249427795, "answer_score": 0.44262375831604, "sibling_qid": "MUM-2023-06-2177-Q003", "sibling_text": "lube oil test onboard", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "What lube-oil tests are carried out onboard ship?", "cross_family": true } ] }, { "qid": "MUM-2026-09-3964-Q001", "text": "OMD function test ?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Engine Theory / Performance", "tid": "MUM-2026-09-3964", "tray": "new", "candidates": [ { "answer_id": "ETP-344-P03-010", "score": 0.5547990798950195, "sibling_score": 0.5547990798950195, "answer_score": 0.28195054531097413, "sibling_qid": "CHE-2026-05-0607-Q001", "sibling_text": "function test on me engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Function tests on the main engine (ME electronic engine)", "cross_family": false }, { "answer_id": "ODC-013", "score": 0.5221323370933533, "sibling_score": 0.5221323370933533, "answer_score": null, "sibling_qid": "KOL-2023-07-0757-Q005", "sibling_text": "odm working", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "ODMCS / ODME — purpose, components and working principle", "cross_family": true }, { "answer_id": "OMD-003", "score": 0.46296656131744385, "sibling_score": 0.46296656131744385, "answer_score": null, "sibling_qid": "MUM-2025-10-1199-Q007", "sibling_text": "working principle of omd", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Explain the OMD working principle, its types and their differences, the electrical side, and zero setting and calibration.", "cross_family": true } ] }, { "qid": "MUM-2026-09-3964-Q002", "text": "OCM METER 15 ppm alarm trying out procedure ?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Lifeboat Static / Dynamic Test", "tid": "MUM-2026-09-3964", "tray": "new", "candidates": [ { "answer_id": "OWS-15PPM-003", "score": 0.6003985404968262, "sibling_score": 0.6003985404968262, "answer_score": 0.4829958826303482, "sibling_qid": "CHE-2025-08-0055-Q004", "sibling_text": "how the 15 ppm equipment measuring ppm", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": true }, { "answer_id": "OWS-ORB-002", "score": 0.5801355838775635, "sibling_score": 0.5801355838775635, "answer_score": 0.46572722792625426, "sibling_qid": "MUM-2023-11-0148-Q003", "sibling_text": "15 ppm not working how will you report control actions as 2e", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "2. OWS / 15 ppm alarm not working — reporting and control actions as 2/E", "cross_family": true }, { "answer_id": "CCE-322-006", "score": 0.5616506338119507, "sibling_score": 0.5616506338119507, "answer_score": null, "sibling_qid": "CHE-2026-03-0497-Q004", "sibling_text": "how do you test omd alarm simulation method and aerosal spray supplied by manufacturer mention the alarm values pre alarm", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Testing the OMD alarm; alarm and shutdown values", "cross_family": true } ] }, { "qid": "MUM-2026-09-3965-Q003", "text": "Human element under STCW ?", "family": "ISM Code", "subtopic": "Human Element", "tid": "MUM-2026-09-3965", "tray": "new", "candidates": [ { "answer_id": "ERM-BF053-001", "score": 0.6113578677177429, "sibling_score": 0.6113578677177429, "answer_score": null, "sibling_qid": "KOC-2025-01-0525-Q003", "sibling_text": "stcw erm", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is Engine Room Resource Management — explain it fully, with its parts and the STCW regulation and chapter it comes under?", "cross_family": false }, { "answer_id": "STCW-MAN-002", "score": 0.5951501727104187, "sibling_score": 0.5951501727104187, "answer_score": null, "sibling_qid": "KOC-2024-11-0455-Q005", "sibling_text": "stcw", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Name the chapters of the STCW Convention and explain them.", "cross_family": true }, { "answer_id": "HUM-BACKFILL-062-FINAL-001", "score": 0.5532305836677551, "sibling_score": 0.5532305836677551, "answer_score": null, "sibling_qid": "MUM-2026-02-0782-Q009", "sibling_text": "human element", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the human element, and what is organisational culture on board?", "cross_family": false } ] }, { "qid": "MUM-2026-09-3965-Q004", "text": "ITLOS ?", "family": "Other Conventions", "subtopic": "ITLOS", "tid": "MUM-2026-09-3965", "tray": "new", "candidates": [ { "answer_id": "CYBER-SEC-002", "score": 0.47652754187583923, "sibling_score": 0.47652754187583923, "answer_score": null, "sibling_qid": "KOC-2023-03-0173-Q006", "sibling_text": "ot it", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What are IT and OT in shipboard cyber risk management, and how do they differ?", "cross_family": true }, { "answer_id": "HKC-IHM-B-001", "score": 0.4303726851940155, "sibling_score": 0.4303726851940155, "answer_score": null, "sibling_qid": "MUM-2025-12-0627-Q006", "sibling_text": "ihm lists", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is the IHM — its parts, categories and contents?", "cross_family": false }, { "answer_id": "OWS-ORB-006", "score": 0.4239221215248108, "sibling_score": 0.4239221215248108, "answer_score": null, "sibling_qid": "MUM-2026-03-0808-Q002", "sibling_text": "orb entry for lo", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "6. Oil Record Book Part I and Part II entries, including bulk lubricating oil", "cross_family": true } ] }, { "qid": "MUM-2026-09-3965-Q006", "text": "Cable gland ?", "family": "Surveys - Statutory", "subtopic": "Surveys - General", "tid": "MUM-2026-09-3965", "tray": "new", "candidates": [ { "answer_id": "CABLE-INS-C-002", "score": 0.5858345031738281, "sibling_score": 0.5858345031738281, "answer_score": 0.3917570278048515, "sibling_qid": "MUM-2022-08-1345-Q004", "sibling_text": "how to pass cable from bulkhead and checks on the gland", "sibling_family": "", "via": "sibling", "answer_title": "Cable laying, routing & watertight-bulkhead penetration", "cross_family": false }, { "answer_id": "CABLE-INS-E-005", "score": 0.5657843351364136, "sibling_score": 0.5657843351364136, "answer_score": null, "sibling_qid": "MUM-2025-11-1770-Q009", "sibling_text": "cables", "sibling_family": "", "via": "sibling", "answer_title": "Cable properties, safety, standards and condition", "cross_family": false }, { "answer_id": "CABLE-INSUL-D-002", "score": 0.5635040402412415, "sibling_score": 0.5635040402412415, "answer_score": null, "sibling_qid": "KOL-2017-12-2164-Q001", "sibling_text": "armour of cable", "sibling_family": "", "via": "sibling", "answer_title": "Armouring, sheathing and flame-retardant / FRLS cable", "cross_family": false } ] }, { "qid": "MUM-2026-09-3965-Q009", "text": "Lenzlaw", "family": "", "subtopic": "", "tid": "MUM-2026-09-3965", "tray": "new", "candidates": [ { "answer_id": "FAR-EMI-001", "score": 0.3887442946434021, "sibling_score": 0.3887442946434021, "answer_score": 0.2914110243320465, "sibling_qid": "KOL-2021-09-2495-Q004", "sibling_text": "lenz law and application", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Faraday's laws of electromagnetic induction and Lenz's law — and their shipboard use", "cross_family": false }, { "answer_id": "FLD-601-003", "score": 0.3757627606391907, "sibling_score": 0.3757627606391907, "answer_score": null, "sibling_qid": "KOC-2025-11-0699-Q003", "sibling_text": "lel values", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What are LEL, LFL, UFL and HFL, and what are their values?", "cross_family": false }, { "answer_id": "FL-PERM-P01-004", "score": 0.35799574851989746, "sibling_score": 0.35799574851989746, "answer_score": null, "sibling_qid": "MUM-2026-04-0921-Q005", "sibling_text": "permissible length define", "sibling_family": "", "via": "sibling", "answer_title": "What is permissible length?", "cross_family": false } ] }, { "qid": "MUM-2026-09-3966-Q001", "text": "SAFCON and LOADLINE survey ?", "family": "Surveys - Statutory", "subtopic": "Safety Construction / Cargo Safety Cert", "tid": "MUM-2026-09-3966", "tray": "new", "candidates": [ { "answer_id": "LLC-SURV-P01-001", "score": 0.6352092623710632, "sibling_score": 0.6352092623710632, "answer_score": 0.36900281012058256, "sibling_qid": "MUM-2026-09-3960-Q005", "sibling_text": "preparation of safcon and load line survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Load line survey preparation as Second Engineer: engine-room scope, machinery openings, tanks/vents, valves and overboard checks", "cross_family": false }, { "answer_id": "LLC-SURV-P02-001", "score": 0.5797193050384521, "sibling_score": 0.5797193050384521, "answer_score": 0.38622029423713683, "sibling_qid": "MUM-2026-06-3461-Q001", "sibling_text": "load line survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "1. Load line survey preparation: readiness, weather-tight checks and attendance", "cross_family": false }, { "answer_id": "COC-002", "score": 0.5562073588371277, "sibling_score": 0.5562073588371277, "answer_score": null, "sibling_qid": "MUM-2025-10-0525-Q001S9", "sibling_text": "coa and load line survey", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is the difference between a Condition of Class and a Condition of Assignment?", "cross_family": false } ] }, { "qid": "MUM-2026-09-3966-Q003", "text": "ODMCS calibration ?", "family": "MARPOL - Annex I (Oil)", "subtopic": "Oil Discharge Criteria", "tid": "MUM-2026-09-3966", "tray": "review", "candidates": [ { "answer_id": "OMD-003", "score": 0.6644859313964844, "sibling_score": 0.6644859313964844, "answer_score": 0.3672384887933731, "sibling_qid": "KOL-2026-03-3937-Q001", "sibling_text": "omd calibration", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Explain the OMD working principle, its types and their differences, the electrical side, and zero setting and calibration.", "cross_family": true }, { "answer_id": "OILPOL-OWS-001", "score": 0.648236095905304, "sibling_score": 0.648236095905304, "answer_score": 0.458845391869545, "sibling_qid": "CHE-2026-05-0543-Q016", "sibling_text": "odmcs calibration shore validity", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "ODMCS / ODME shore calibration — how long is it valid?", "cross_family": false }, { "answer_id": "ODC-014", "score": 0.6478661894798279, "sibling_score": 0.6478661894798279, "answer_score": 0.3578402757644653, "sibling_qid": "CHE-2025-08-0019-Q016", "sibling_text": "odmcs calibration shore validity", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "ODMCS — what it records, the log, and calibration", "cross_family": false } ] }, { "qid": "MUM-2026-09-3966-Q004", "text": "SMPEP and its contents ?", "family": "MARPOL - Annex I (Oil)", "subtopic": "SOPEP", "tid": "MUM-2026-09-3966", "tray": "new", "candidates": [ { "answer_id": "OILPOL-OWS-012", "score": 0.6321840882301331, "sibling_score": 0.6321840882301331, "answer_score": 0.35918996334075926, "sibling_qid": "MUM-2022-08-0037-Q005", "sibling_text": "smpep", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "SMPEP — what it is, and why it isn't just a SOPEP", "cross_family": false }, { "answer_id": "SOPEP-002", "score": 0.5544169545173645, "sibling_score": 0.5544169545173645, "answer_score": 0.28070221096277237, "sibling_qid": "KOL-2021-10-0563-Q005", "sibling_text": "sopep manual what are the contents difference between sopep and smpep", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "SOPEP — Mandatory Contents, Appendices, Locker and Equipment", "cross_family": false }, { "answer_id": "SOPEP-004", "score": 0.5161857008934021, "sibling_score": 0.5161857008934021, "answer_score": 0.2796989127993584, "sibling_qid": "KOL-2018-08-1861-Q016", "sibling_text": "sopep and smepp", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "SOPEP vs SMPEP and Other Shipboard Plans; Drills", "cross_family": false } ] }, { "qid": "MUM-2026-09-3966-Q005", "text": "How you come to know if hull is fouled or propeller is fouled ?", "family": "Drydock & Underwater Surveys", "subtopic": "Hull Painting / Antifouling", "tid": "MUM-2026-09-3966", "tray": "new", "candidates": [ { "answer_id": "PROP-PIL-A-002", "score": 0.6375771164894104, "sibling_score": 0.6375771164894104, "answer_score": null, "sibling_qid": "KOL-2019-11-3298-Q004", "sibling_text": "propeller is ready to fit in dry dock what u will check wanted to listen bedding how will check if bed properly persian blue method what u will scrap daft or propeller 5 forgot", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Bedding on the taper and fit verification", "cross_family": false }, { "answer_id": "DDI-003", "score": 0.6335898041725159, "sibling_score": 0.6335898041725159, "answer_score": null, "sibling_qid": "MUM-2022-11-2719-Q010", "sibling_text": "after drydock as 2ewhat all things to cheek in propeller rudden sit before flooding few more result fail", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Before flooding the dock, what checks do you carry out — in the engine room, and on the propeller, rudder and stern tube?", "cross_family": false }, { "answer_id": "PROP-PN-C-003", "score": 0.6246121525764465, "sibling_score": 0.6246121525764465, "answer_score": 0.4816568851470947, "sibling_qid": "KOL-2018-05-3145-Q001", "sibling_text": "dry dock what u check n propeller", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Drydock propeller inspection — checks and repairs", "cross_family": false } ] }, { "qid": "MUM-2026-09-3966-Q006", "text": "Diff bet ais and IRIT ?", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "MUM-2026-09-3966", "tray": "new", "candidates": [ { "answer_id": "PI-211-003", "score": 0.46767181158065796, "sibling_score": 0.46767181158065796, "answer_score": 0.2587576538324356, "sibling_qid": "KOL-2025-12-2940-Q006", "sibling_text": "differences between pi and ir", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "PI versus insulation resistance, and why the 1-minute and 10-minute readings are compared", "cross_family": true }, { "answer_id": "WIDAS-SMK-007", "score": 0.4106437563896179, "sibling_score": 0.4106437563896179, "answer_score": null, "sibling_qid": "MUM-2026-03-0855-Q003", "sibling_text": "diff between iso ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Smoke sampling line — testing, confirming clear, and what is in the tube", "cross_family": true }, { "answer_id": "AV6-P05-02", "score": 0.4019528031349182, "sibling_score": 0.4019528031349182, "answer_score": null, "sibling_qid": "KOL-2024-03-0821-Q004", "sibling_text": "4 aer and eeoi difference 5 5", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "AER versus EEOI — formulas, denominators and calculation period", "cross_family": true } ] }, { "qid": "MUM-2026-09-3966-Q007", "text": "Official log book contents and period to be kept on board ?", "family": "Shipboard Records", "subtopic": "Official Log Book", "tid": "MUM-2026-09-3966", "tray": "new", "candidates": [ { "answer_id": "ISM-2E-C-001", "score": 0.5780799984931946, "sibling_score": 0.5780799984931946, "answer_score": null, "sibling_qid": "KOC-2025-03-0562-Q011", "sibling_text": "all documents to be given as for ism survey internal type of vessel certificate for that vessel where is the cargo entry made is there any special book official log book what cheng role of the same what all entries", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM audit / survey preparation as Second Engineer — beyond the paperwork", "cross_family": true }, { "answer_id": "ELEC-SURV-003", "score": 0.5707381963729858, "sibling_score": 0.5707381963729858, "answer_score": null, "sibling_qid": "MUM-2022-09-1355-Q010", "sibling_text": "what all things you write on log book reagardnig electrical", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Documents, certificates & trend records", "cross_family": true }, { "answer_id": "BWMS-A-003", "score": 0.568740725517273, "sibling_score": 0.568740725517273, "answer_score": null, "sibling_qid": "KOL-2025-09-1086-Q004", "sibling_text": "bwm convention and type used in your ship what all record keeping", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Records, the management plan and certificate checks", "cross_family": true } ] }, { "qid": "MUM-2026-09-3968-Q001", "text": "What is MEPC 81 ?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "Annex VI Amendments / Latest Requirements", "tid": "MUM-2026-09-3968", "tray": "new", "candidates": [ { "answer_id": "AV6-P01-01", "score": 0.6496093273162842, "sibling_score": 0.6496093273162842, "answer_score": null, "sibling_qid": "KOC-2025-03-0549-Q003", "sibling_text": "mepc 81", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Explain the latest Annex VI amendment or MEPC development, and state its date and status.", "cross_family": false }, { "answer_id": "MEPC-GHG-003", "score": 0.5200115442276001, "sibling_score": 0.5200115442276001, "answer_score": null, "sibling_qid": "KOC-2024-08-0382-Q003", "sibling_text": "mepc 80", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Explain MEPC 80 — when was it held and what was decided?", "cross_family": false }, { "answer_id": "MEPC-GHG-002", "score": 0.49001815915107727, "sibling_score": 0.49001815915107727, "answer_score": null, "sibling_qid": "KOC-2023-03-0162-Q002", "sibling_text": "mepc 78", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Explain MEPC 78 and MEPC 79 — when were they held and what was decided?", "cross_family": false } ] }, { "qid": "MUM-2026-09-3968-Q003", "text": "ISCS ?", "family": "", "subtopic": "", "tid": "MUM-2026-09-3968", "tray": "new", "candidates": [ { "answer_id": "ISPS-SL-006", "score": 0.5519915819168091, "sibling_score": 0.5519915819168091, "answer_score": 0.320464164018631, "sibling_qid": "KOC-2026-08-2143-Q010", "sibling_text": "issc", "sibling_family": "ISPS", "via": "sibling", "answer_title": "ISPS / ISSC certificates and documents — issue, audit and verification", "cross_family": false }, { "answer_id": "IACS-324-001", "score": 0.4768453538417816, "sibling_score": 0.4768453538417816, "answer_score": null, "sibling_qid": "KOC-2025-02-0543-Q001", "sibling_text": "iacs", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "1. What is IACS and what are its functions?", "cross_family": false }, { "answer_id": "ISPS-SL-001", "score": 0.45524293184280396, "sibling_score": 0.45524293184280396, "answer_score": 0.2997461050748825, "sibling_qid": "KOL-2024-10-0872-Q001", "sibling_text": "isps", "sibling_family": "ISPS", "via": "sibling", "answer_title": "The ISPS Code — purpose, scope and the SOLAS link", "cross_family": false } ] }, { "qid": "MUM-2026-09-3969-Q001", "text": "TYPE OF SHIP ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-09-3969", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8366292119026184, "sibling_score": 0.8366292119026184, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8018827438354492, "sibling_score": 0.8018827438354492, "answer_score": 0.5473108768463134, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8003316521644592, "sibling_score": 0.8003316521644592, "answer_score": 0.5218650102615356, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2026-09-3969-Q006", "text": "What is magnetic filter ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "LO Filter", "tid": "MUM-2026-09-3969", "tray": "new", "candidates": [ { "answer_id": "LOF-359-002", "score": 0.6170100569725037, "sibling_score": 0.6170100569725037, "answer_score": null, "sibling_qid": "MUM-2026-06-3370-Q004", "sibling_text": "purpose of magnets in main engine lube oil filter", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "FO Filter vs LO Filter — Which Is Finer, and Why?", "cross_family": false }, { "answer_id": "LOF-359-001", "score": 0.5040810704231262, "sibling_score": 0.5040810704231262, "answer_score": null, "sibling_qid": "MUM-2022-12-2720-Q005", "sibling_text": "what is beta filter", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Beta Ratio / Beta Efficiency", "cross_family": false }, { "answer_id": "EPC-P02-06", "score": 0.4752769470214844, "sibling_score": 0.4752769470214844, "answer_score": null, "sibling_qid": "CHE-2025-08-0269-Q005", "sibling_text": "define harmonic filter", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What are harmonics, where does the high voltage / distortion come from, and what is a harmonic filter — define, use and where fitted?", "cross_family": true } ] }, { "qid": "MUM-2026-09-3969-Q007", "text": "EGB fire ? action?", "family": "Boilers - Construction & Components", "subtopic": "Exhaust Gas Boiler", "tid": "MUM-2026-09-3969", "tray": "new", "candidates": [ { "answer_id": "UPT-FIRE-003", "score": 0.6343668699264526, "sibling_score": 0.6343668699264526, "answer_score": 0.37062821090221404, "sibling_qid": "KOC-2024-06-1843-Q007", "sibling_text": "egb uptake fire actions", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Fire in the exhaust gas boiler or economiser — actions and instructions to the duty engineers", "cross_family": true }, { "answer_id": "FIRE-P04-05", "score": 0.5622901320457458, "sibling_score": 0.5622901320457458, "answer_score": null, "sibling_qid": "MUM-2023-03-0094-Q004", "sibling_text": "fire in dd actions as 2e if no ce", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fire in dry dock / alongside repair — 2/E stepwise actions", "cross_family": true }, { "answer_id": "SMK-FUNL-BF01-004", "score": 0.5499787330627441, "sibling_score": 0.5499787330627441, "answer_score": 0.3548495829105377, "sibling_qid": "CHE-2026-09-3929-Q001", "sibling_text": "action spark in funnel ege fire", "sibling_family": "2-Stroke - Operations & Casualty", "via": "sibling", "answer_title": "There are sparks from the funnel on arrival in port — what is the reason and your action?", "cross_family": true } ] }, { "qid": "MUM-2026-09-3969-Q008", "text": "what is hydrogen fire ? how to fight ?", "family": "SOLAS - Fire Safety", "subtopic": "Fixed Firefighting", "tid": "MUM-2026-09-3969", "tray": "new", "candidates": [ { "answer_id": "DCP-FIXED-A-004", "score": 0.5750998854637146, "sibling_score": 0.5750998854637146, "answer_score": null, "sibling_qid": "KOL-2024-11-0885-Q003", "sibling_text": "fixed fire extinguisher for gas tanker and motive behind this how dcp extinguisher extinguish gas fire principle behind this he don t want to listen chain reaction", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Why DCP on gas carriers, not foam/water/CO2, and the extinguishing principle", "cross_family": false }, { "answer_id": "FIRE-P01-03", "score": 0.5709787607192993, "sibling_score": 0.5709787607192993, "answer_score": 0.4141201198101044, "sibling_qid": "KOC-2023-07-0205-Q010", "sibling_text": "explain how hypermist is extinguisher the fire", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist — how the mist is formed and how it extinguishes fire", "cross_family": false }, { "answer_id": "FEXT-583-006", "score": 0.5655431151390076, "sibling_score": 0.5655431151390076, "answer_score": null, "sibling_qid": "KOL-2025-09-1048-Q001", "sibling_text": "substance react violently with water during fire what type of fire extinguisher to be used", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Classes of fire, which class a galley fire falls under, and special measures for solid and metal fires", "cross_family": false } ] }, { "qid": "MUM-2026-09-3969-Q009", "text": "What is eductor ?its application ?", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "MUM-2026-09-3969", "tray": "new", "candidates": [ { "answer_id": "EEDI-A-001", "score": 0.3869197964668274, "sibling_score": 0.3869197964668274, "answer_score": null, "sibling_qid": "KOL-2025-08-1022-Q003", "sibling_text": "what is eedi and purpose", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What EEDI is, and why it is required", "cross_family": true }, { "answer_id": "EECS-009", "score": 0.3857753276824951, "sibling_score": 0.3857753276824951, "answer_score": null, "sibling_qid": "KOL-2023-04-2646-Q008", "sibling_text": "what is eedi", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "09. What is EEDI? Attained and required EEDI and the formula", "cross_family": true }, { "answer_id": "EXD-EXI-A-002", "score": 0.36901000142097473, "sibling_score": 0.36901000142097473, "answer_score": null, "sibling_qid": "KOC-2025-02-1488-Q007", "sibling_text": "what is exd where is it used", "sibling_family": "", "via": "sibling", "answer_title": "Ex d (flameproof / explosion-proof) — construction, shipboard applications and maintenance", "cross_family": false } ] }, { "qid": "MUM-2026-09-3970-Q001", "text": "Pintle clearance procedure ?", "family": "Shafting, Propeller & Rudder", "subtopic": "Stern Tube / Tail Shaft Bearings", "tid": "MUM-2026-09-3970", "tray": "new", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.6050699949264526, "sibling_score": 0.6050699949264526, "answer_score": null, "sibling_qid": "NOI-2026-09-0024-Q001", "sibling_text": "pintle clearance", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "BCL-592-002", "score": 0.49150562286376953, "sibling_score": 0.49150562286376953, "answer_score": null, "sibling_qid": "MUM-2026-05-3001-Q006S2", "sibling_text": "how to take clearance", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Take me through all the clearances you measure on the main engine and how you take each one.", "cross_family": false }, { "answer_id": "MN-BRG-C-003", "score": 0.4777839481830597, "sibling_score": 0.4777839481830597, "answer_score": null, "sibling_qid": "KOL-2020-06-3339-Q005", "sibling_text": "removal of main bearing and main thing u ll check before taking clearance", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Main bearing clearance and wear-down: measuring and interpreting", "cross_family": true } ] }, { "qid": "MUM-2026-09-3970-Q002", "text": "How many attempts ?", "family": "", "subtopic": "", "tid": "MUM-2026-09-3970", "tray": "new", "candidates": [ { "answer_id": "CHAIN-TENS-A-003", "score": 0.4798504710197449, "sibling_score": 0.4798504710197449, "answer_score": null, "sibling_qid": "MUM-2026-02-2546-Q006", "sibling_text": "6 repeat", "sibling_family": "__META__ (non-exam)", "via": "sibling", "answer_title": "Chain Tightening Procedure — MC / MC-C / ME", "cross_family": false }, { "answer_id": "CTRL-TL-010", "score": 0.44353044033050537, "sibling_score": 0.44353044033050537, "answer_score": null, "sibling_qid": "KOL-2018-12-2250-Q004", "sibling_text": "4 failsafematic", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Pneumatic control: nozzle-flapper, DP, actuators and fail-safe", "cross_family": false }, { "answer_id": "SG-055-B-003", "score": 0.4171655774116516, "sibling_score": 0.4171655774116516, "answer_score": null, "sibling_qid": "KOL-2021-08-1619-Q004", "sibling_text": "50 redundancy", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Redundancy and the single-failure requirement (50% / 100%)", "cross_family": false } ] }, { "qid": "MUM-2026-09-3970-Q006", "text": "Aux engine after overhaul checks as 2E ?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE Conrod / Piston", "tid": "MUM-2026-09-3970", "tray": "review", "candidates": [ { "answer_id": "AECR-651-005", "score": 0.6807405352592468, "sibling_score": 0.6807405352592468, "answer_score": null, "sibling_qid": "MUM-2026-06-3649-Q007", "sibling_text": "4s engine overhauled by workshop what all checks as 2e", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "What do you check on the crank-pin bearing, gudgeon pin and con rod during a decarb — and a 4-stroke overhauled by a workshop, what do you check as 2/E?", "cross_family": false }, { "answer_id": "AEDEC-291-001", "score": 0.6642258763313293, "sibling_score": 0.6642258763313293, "answer_score": null, "sibling_qid": "KOC-2026-02-1999-Q013", "sibling_text": "any overhauls done on auxiliary engine", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "1. AE decarb / overhaul — preparation and full procedure", "cross_family": false }, { "answer_id": "AEDEC-291-009", "score": 0.6634133458137512, "sibling_score": 0.6634133458137512, "answer_score": null, "sibling_qid": "KOL-2025-06-3786-Q005", "sibling_text": "load carrying capacity of your aux eng is lower what ovrhaul you will plan as 2e", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "9. Planning overhaul when load-carrying capacity is low", "cross_family": false } ] }, { "qid": "MUM-2026-09-3970-Q007", "text": "No spare Liner how to do maintenance on weared out liner ?", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "MUM-2026-09-3970", "tray": "new", "candidates": [ { "answer_id": "CYL-LINER-P04-002", "score": 0.6449514627456665, "sibling_score": 0.6449514627456665, "answer_score": null, "sibling_qid": "MUM-2026-06-3450-Q005", "sibling_text": "you are doing maintenance of me how will you decide that liner need replacement", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Judging, measuring, removing & discarding a cylinder liner", "cross_family": false }, { "answer_id": "CYL-LINER-P03-002", "score": 0.6407743096351624, "sibling_score": 0.6407743096351624, "answer_score": null, "sibling_qid": "MUM-2025-06-0972-Q008", "sibling_text": "liner crack u dnt have spare liner wat u will do", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Detecting and confirming a cracked or leaking liner — and pinning the unit", "cross_family": false }, { "answer_id": "CYL-LINER-P03-005", "score": 0.6312972903251648, "sibling_score": 0.6312972903251648, "answer_score": null, "sibling_qid": "MUM-2025-11-1212-Q010", "sibling_text": "if you dont have spare liner then what will you do", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Spare cylinder liner — what checks and certificates before you fit it?", "cross_family": false } ] }, { "qid": "MUM-2026-09-3971-Q002", "text": "Strengthening system used for ship ?", "family": "Cargo Ops - Tankers", "subtopic": "IG System", "tid": "MUM-2026-09-3971", "tray": "review", "candidates": [ { "answer_id": "COT-04", "score": 0.6761561036109924, "sibling_score": 0.6761561036109924, "answer_score": null, "sibling_qid": "MUM-2026-09-3974-Q003", "sibling_text": "strengthening members of a chemical tanker", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Chemical-tanker midship section and cargo-tank construction", "cross_family": false }, { "answer_id": "KGF-A-005", "score": 0.6254156827926636, "sibling_score": 0.6254156827926636, "answer_score": null, "sibling_qid": "KOC-2025-06-0602-Q001", "sibling_text": "construction of ur last vessel in terms of strengthening", "sibling_family": "", "via": "sibling", "answer_title": "Strengthening members & longitudinal / transverse strength", "cross_family": false }, { "answer_id": "PPS-230-005", "score": 0.6220171451568604, "sibling_score": 0.6220171451568604, "answer_score": null, "sibling_qid": "CHE-2025-08-0014-Q001", "sibling_text": "container ship forward strengthening arrangement", "sibling_family": "", "via": "sibling", "answer_title": "Panting and pounding arrangements: extent and alternative members", "cross_family": false } ] }, { "qid": "MUM-2026-09-3971-Q006", "text": "What is RA & what is MNC ?", "family": "ISM Code", "subtopic": "Major / Minor NC", "tid": "MUM-2026-09-3971", "tray": "new", "candidates": [ { "answer_id": "ISMNC-003", "score": 0.5227469205856323, "sibling_score": 0.5227469205856323, "answer_score": null, "sibling_qid": "MUM-2025-07-0350-Q003", "sibling_text": "mnc and nc define", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Differentiate between a major non-conformity and a non-conformity under the ISM Code.", "cross_family": false }, { "answer_id": "ISMNC-002", "score": 0.5167025327682495, "sibling_score": 0.5167025327682495, "answer_score": null, "sibling_qid": "MUM-2023-03-0091-Q009", "sibling_text": "define mnc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a major non-conformity under the ISM Code? Give the definition and name some.", "cross_family": false }, { "answer_id": "ISMNC-005", "score": 0.48813849687576294, "sibling_score": 0.48813849687576294, "answer_score": null, "sibling_qid": "MUM-2025-09-0447-Q005", "sibling_text": "mnc with example", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Give examples of a non-conformity and of a major non-conformity.", "cross_family": false } ] }, { "qid": "MUM-2026-09-3971-Q007", "text": "Ism audit, found MNC what action ?", "family": "ISM Code", "subtopic": "ISM / SMS / Audit", "tid": "MUM-2026-09-3971", "tray": "new", "candidates": [ { "answer_id": "ISM-SMC-B-001", "score": 0.5638328194618225, "sibling_score": 0.5638328194618225, "answer_score": null, "sibling_qid": "MUM-2022-12-0074-Q012", "sibling_text": "ism audit procedure types of doc types of smc when who issued nc mnc define objective evidence", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "SMC — purpose, contents, issue and validity", "cross_family": false }, { "answer_id": "ISMNC-006", "score": 0.5290132164955139, "sibling_score": 0.5290132164955139, "answer_score": null, "sibling_qid": "MUM-2025-12-0649-Q011", "sibling_text": "what action if got mnc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Your ship has been issued a major non-conformity: what action do you take, what are the repercussions, and can the ship sail with it?", "cross_family": false }, { "answer_id": "ISM-SMC-B-003", "score": 0.5119728446006775, "sibling_score": 0.5119728446006775, "answer_score": null, "sibling_qid": "MUM-2026-07-3676-Q008", "sibling_text": "ism smc how many audits", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "SMC audit cycle — initial, intermediate, renewal, additional", "cross_family": false } ] }, { "qid": "MUM-2026-09-3971-Q009", "text": "MLC article 3 ?", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2026-09-3971", "tray": "new", "candidates": [ { "answer_id": "AFS-309-001", "score": 0.4834466576576233, "sibling_score": 0.4834466576576233, "answer_score": null, "sibling_qid": "MUM-2025-02-0241-Q002", "sibling_text": "afs convention 3 dmlc 1 2 3", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "The AFS Convention — what it is, why it came, what it controls", "cross_family": true }, { "answer_id": "MLC-WRH-B-010", "score": 0.4570849537849426, "sibling_score": 0.4570849537849426, "answer_score": null, "sibling_qid": "MUM-2025-11-0573-Q004", "sibling_text": "how are wages set under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "SEA, the CBA parties, and how wages are set — action on non-payment", "cross_family": false }, { "answer_id": "MLC-WRH-B-006", "score": 0.4381646513938904, "sibling_score": 0.4381646513938904, "answer_score": 0.28065278828144075, "sibling_qid": "MUM-2026-07-3680-Q005", "sibling_text": "what is mlc certificate under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false } ] }, { "qid": "MUM-2026-09-3971-Q010", "text": "ME And AE type", "family": "Heat Exchangers & Coolers", "subtopic": "JCW System", "tid": "MUM-2026-09-3971", "tray": "new", "candidates": [ { "answer_id": "AEME-DIFF-001", "score": 0.6093641519546509, "sibling_score": 0.6093641519546509, "answer_score": null, "sibling_qid": "MUM-2025-05-2295-Q004", "sibling_text": "types of me and ae worked on", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": true }, { "answer_id": "ENG-NOM-001", "score": 0.5946184992790222, "sibling_score": 0.5946184992790222, "answer_score": 0.31561582684516903, "sibling_qid": "NOI-2026-09-0008-Q002", "sibling_text": "me and ae type and nomenclature", "sibling_family": "General Marine Engineering", "via": "sibling", "answer_title": "Nomenclature of ME and AE (asked together)", "cross_family": true }, { "answer_id": "ENG-NOM-005", "score": 0.5157656073570251, "sibling_score": 0.5157656073570251, "answer_score": null, "sibling_qid": "MUM-2026-09-3915-Q001", "sibling_text": "type of engine me and ae", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "MUM-2026-09-3971-Q011", "text": "Construction difference in main and aux engine", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-09-3971", "tray": "new", "candidates": [ { "answer_id": "AEME-DIFF-001", "score": 0.5361039042472839, "sibling_score": 0.5361039042472839, "answer_score": 0.47715934514999386, "sibling_qid": "MUM-2026-03-2642-Q012", "sibling_text": "type of main and aux engine", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": true }, { "answer_id": "ENG-NOM-006", "score": 0.5308042764663696, "sibling_score": 0.5308042764663696, "answer_score": null, "sibling_qid": "CHE-2026-05-0585-Q001", "sibling_text": "main engine specification complete", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Short-form asks: SMC-C, LMC, and ME vs MC quickly", "cross_family": false }, { "answer_id": "FP-OVHL-001", "score": 0.5023958683013916, "sibling_score": 0.5023958683013916, "answer_score": null, "sibling_qid": "MUM-2025-12-1227-Q004", "sibling_text": "diff btw fuel pump of me and aux engine", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Aux-engine / Bosch jerk fuel pump — overhaul, checks, boxing up", "cross_family": true } ] }, { "qid": "MUM-2026-09-3971-Q014", "text": "After major overhaul in AE what all checks before starting of engine", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE 4-Stroke Theory", "tid": "MUM-2026-09-3971", "tray": "new", "candidates": [ { "answer_id": "AEDEC-291-004", "score": 0.6356890797615051, "sibling_score": 0.6356890797615051, "answer_score": null, "sibling_qid": "KOL-2019-11-3298-Q002", "sibling_text": "ae full oh carried out ae running on no load what all things u will check as 2nd eng not satisfied with answer", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "4. Checks on no-load and before taking load", "cross_family": false }, { "answer_id": "AEDEC-291-003", "score": 0.6220112442970276, "sibling_score": 0.6220112442970276, "answer_score": 0.4959377348423004, "sibling_qid": "KOL-2017-08-1316-Q009", "sibling_text": "after overhaul of generator wat all checks we do before starting generator", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "3. Pre-start checks after decarb / recommissioning", "cross_family": false }, { "answer_id": "AEDEC-291-008", "score": 0.6043182015419006, "sibling_score": 0.6043182015419006, "answer_score": null, "sibling_qid": "KOL-2022-01-3514-Q003", "sibling_text": "after ae complete overhaul ae not starting on air what all to check", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "8. Post-decarb abnormal running — overspeed, RPM, air-start, LO", "cross_family": false } ] }, { "qid": "MUM-2026-09-3972-Q003", "text": "What is standard and subdivision load line ? ", "family": "Ship Construction & Stability", "subtopic": "DEFINITION", "tid": "MUM-2026-09-3972", "tray": "new", "candidates": [ { "answer_id": "LL-CONV-P06-003", "score": 0.6418853998184204, "sibling_score": 0.6418853998184204, "answer_score": 0.4553060084581375, "sibling_qid": "MUM-2025-01-0235-Q006", "sibling_text": "subdivision load line", "sibling_family": "", "via": "sibling", "answer_title": "LLC-P06-03 - Subdivision load line, margin line and probabilistic subdivision", "cross_family": false }, { "answer_id": "DS-P04-002", "score": 0.6147535443305969, "sibling_score": 0.6147535443305969, "answer_score": null, "sibling_qid": "MUM-2025-12-0627-Q004", "sibling_text": "subdivisional loadline", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Flooding, subdivision, margin line, downflooding and survivability", "cross_family": true }, { "answer_id": "LL-CONV-P06-002", "score": 0.5931593775749207, "sibling_score": 0.5931593775749207, "answer_score": 0.43039337992668153, "sibling_qid": "MUM-2026-04-0919-Q004", "sibling_text": "load line what is standard loadline define it", "sibling_family": "", "via": "sibling", "answer_title": "LLC-P06-02 - Types of load lines: standard, seasonal, timber, WNA and multiple load lines", "cross_family": false } ] }, { "qid": "MUM-2026-09-3972-Q004", "text": "Gender Equality ?", "family": "Risk & Safety Management", "subtopic": "Risk Assessment / Management", "tid": "MUM-2026-09-3972", "tray": "new", "candidates": [ { "answer_id": "GEN-LSI-B-003", "score": 0.441782683134079, "sibling_score": 0.441782683134079, "answer_score": null, "sibling_qid": "KOL-2022-05-2560-Q007", "sibling_text": "what is equalizing", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "03. Purpose of the equalising line / equalising connection in parallel operation", "cross_family": true }, { "answer_id": "EQ-LINE-001", "score": 0.4150230288505554, "sibling_score": 0.4150230288505554, "answer_score": null, "sibling_qid": "KOL-2020-10-1555-Q005", "sibling_text": "equilising vv purpose", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Purpose and function of the equalising line / equalising valve in refrigeration service", "cross_family": true }, { "answer_id": "DSC-004", "score": 0.41344553232192993, "sibling_score": 0.41344553232192993, "answer_score": null, "sibling_qid": "KOL-2024-06-2716-Q002", "sibling_text": "majority minority carriers", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What is a PN junction, what are majority and minority carriers, and what is breakdown voltage?", "cross_family": true } ] }, { "qid": "MUM-2026-09-3972-Q006", "text": "Sustainable goals set by IMO ?", "family": "IMO Structure & Conventions", "subtopic": "IMO / Committees / Codes", "tid": "MUM-2026-09-3972", "tray": "new", "candidates": [ { "answer_id": "IMO-CODES-P02-001", "score": 0.5821584463119507, "sibling_score": 0.5821584463119507, "answer_score": null, "sibling_qid": "KOC-2025-11-0712-Q002", "sibling_text": "latest imo resolution in 2025", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "IMO instruments: convention, code, protocol, amendment, regulation, resolution and rule", "cross_family": false }, { "answer_id": "MEPC-GHG-005", "score": 0.5727009773254395, "sibling_score": 0.5727009773254395, "answer_score": 0.4677985727787018, "sibling_qid": "MUM-2026-06-3413-Q006", "sibling_text": "imo requirements for reducing ghg", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "The IMO GHG Strategy and its revised version — the new and latest GHG measures, the strategy on CO2, and the requirements for reducing GHG.", "cross_family": true }, { "answer_id": "IMO-CODES-P03-002", "score": 0.5704934000968933, "sibling_score": 0.5704934000968933, "answer_score": 0.47544447183609007, "sibling_qid": "CHE-2026-05-0532-Q007", "sibling_text": "carbon startegy of imo", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": false } ] }, { "qid": "MUM-2026-09-3972-Q009", "text": "What is there in MLC regarding harassment and bullying ?", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2026-09-3972", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-011", "score": 0.507805585861206, "sibling_score": 0.507805585861206, "answer_score": null, "sibling_qid": "CHE-2026-05-0616-Q007", "sibling_text": "onboard complaint procedure for harassment expecting whistle blower policy internal deciding", "sibling_family": "MLC", "via": "sibling", "answer_title": "The on-board complaint and grievance procedure", "cross_family": false }, { "answer_id": "MLC-WRH-B-010", "score": 0.3999003767967224, "sibling_score": 0.3999003767967224, "answer_score": null, "sibling_qid": "MUM-2025-11-0573-Q004", "sibling_text": "how are wages set under mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "SEA, the CBA parties, and how wages are set — action on non-payment", "cross_family": false }, { "answer_id": "MLC-WRH-B-002", "score": 0.37996071577072144, "sibling_score": 0.37996071577072144, "answer_score": null, "sibling_qid": "MUM-2025-10-0532-Q006", "sibling_text": "mlc related to rest and working hours", "sibling_family": "MLC", "via": "sibling", "answer_title": "Work and rest hours under MLC — the criteria, the weekly limit, the intervals", "cross_family": false } ] }, { "qid": "MUM-2026-09-3972-Q012", "text": "How will you ensure proper coating is there inside ballast and cargo tanks ?", "family": "Other Conventions", "subtopic": "Ballast Water Convention / BWM / BWMS", "tid": "MUM-2026-09-3972", "tray": "new", "candidates": [ { "answer_id": "BUNK-PLAN-004", "score": 0.5969222187995911, "sibling_score": 0.5969222187995911, "answer_score": null, "sibling_qid": "KOL-2017-01-0042-Q006", "sibling_text": "ship in ballast condition and u r taking bunkering wt document on board u ll use so that tank will not causes overflow", "sibling_family": "MARPOL - General & Compliance", "via": "sibling", "answer_title": "Bunker plan: tank selection, quantity / overflow control, calculation and procedure", "cross_family": true }, { "answer_id": "LTK-386-005", "score": 0.5875737071037292, "sibling_score": 0.5875737071037292, "answer_score": null, "sibling_qid": "KOC-2023-05-0182-Q003", "sibling_text": "ballast tank piping how it goes to the tank he is expecting that it is not going through cargo tanks as it can lead to contamination", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "How is ballast tank piping arranged, and why must it avoid contamination with cargo tanks?", "cross_family": true }, { "answer_id": "BWMS-C-004", "score": 0.5874656438827515, "sibling_score": 0.5874656438827515, "answer_score": null, "sibling_qid": "KOL-2025-08-1021-Q009", "sibling_text": "ballast treatment on ur ship complete working and values", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Electrochlorination & chemical systems — TRO, active substances, neutralisation", "cross_family": false } ] }, { "qid": "MUM-2026-09-3973-Q001", "text": "Status of orals ? Types of ships sailed ?360 ° view of room ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-09-3973", "tray": "new", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.588538646697998, "sibling_score": 0.588538646697998, "answer_score": null, "sibling_qid": "CHE-2026-09-3938-Q001", "sibling_text": "types of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.5779975056648254, "sibling_score": 0.5779975056648254, "answer_score": null, "sibling_qid": "MUM-2026-05-3139-Q001", "sibling_text": "status of oral and written type of ship sailed container nomenclature of main and auxiliary engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.5767083764076233, "sibling_score": 0.5767083764076233, "answer_score": null, "sibling_qid": "KOC-2026-08-2106-Q001", "sibling_text": "status of written oral company type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false } ] }, { "qid": "MUM-2026-09-3973-Q006", "text": "Near miss major NC ?", "family": "ISM Code", "subtopic": "Major / Minor NC", "tid": "MUM-2026-09-3973", "tray": "review", "candidates": [ { "answer_id": "ISMNC-002", "score": 0.6509851813316345, "sibling_score": 0.6509851813316345, "answer_score": null, "sibling_qid": "MUM-2026-02-0732-Q004", "sibling_text": "major nc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a major non-conformity under the ISM Code? Give the definition and name some.", "cross_family": false }, { "answer_id": "ISMNC-003", "score": 0.6361992955207825, "sibling_score": 0.6361992955207825, "answer_score": 0.3248712942004204, "sibling_qid": "MUM-2025-11-0553-Q006", "sibling_text": "nc major nc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Differentiate between a major non-conformity and a non-conformity under the ISM Code.", "cross_family": false }, { "answer_id": "ISMNC-001", "score": 0.5155701041221619, "sibling_score": 0.5155701041221619, "answer_score": null, "sibling_qid": "MUM-2023-03-0091-Q008", "sibling_text": "define nc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a non-conformity under the ISM Code? Give the definition.", "cross_family": false } ] }, { "qid": "MUM-2026-09-3973-Q007", "text": "OWS not working, no spares , what steps to do ?", "family": "MARPOL - Annex I (Oil)", "subtopic": "15 PPM / OWS", "tid": "MUM-2026-09-3973", "tray": "new", "candidates": [ { "answer_id": "OWS-15PPM-005", "score": 0.573585033416748, "sibling_score": 0.573585033416748, "answer_score": null, "sibling_qid": "MUM-2025-09-1184-Q006", "sibling_text": "ows pump and if no spare available what action u will take to run the ows", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "OWS-15PPM-007", "score": 0.5690444111824036, "sibling_score": 0.5690444111824036, "answer_score": null, "sibling_qid": "MUM-2022-08-0034-Q003", "sibling_text": "what all 3ssential spares for ows", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "OWS-15PPM-001", "score": 0.5470215678215027, "sibling_score": 0.5470215678215027, "answer_score": null, "sibling_qid": "KOL-2025-07-0998-Q004", "sibling_text": "ows is not working infront of psc as 2nd eng what will you do", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "MUM-2026-09-3973-Q008", "text": "How you come to know your company is following ISM ?", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "MUM-2026-09-3973", "tray": "new", "candidates": [ { "answer_id": "ISM-AUDIT-P01-002", "score": 0.5485075116157532, "sibling_score": 0.5485075116157532, "answer_score": null, "sibling_qid": "KOL-2026-03-1199-Q004", "sibling_text": "ism audit who does", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM/SMS audits and verifications — types, who conducts them, intervals and validity", "cross_family": false }, { "answer_id": "ISM-AUD-P02-007", "score": 0.5429210066795349, "sibling_score": 0.5429210066795349, "answer_score": null, "sibling_qid": "KOC-2024-11-0469-Q009", "sibling_text": "ism chapters x how can you ensure that your company and vessel are complying with vessel sms he just wants to hear by annual inter renewal and additional audits internal and external audits", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Internal versus external ISM audit: purpose, difference and who does it", "cross_family": false }, { "answer_id": "ISM-AUD-P03-002", "score": 0.5387158989906311, "sibling_score": 0.5387158989906311, "answer_score": 0.40955218225717543, "sibling_qid": "CHE-2026-08-3877-Q008", "sibling_text": "who conducts ism audits", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM audit / survey — what it is, who conducts it, what it covers onboard", "cross_family": false } ] }, { "qid": "MUM-2026-09-3974-Q001", "text": "Type of ship sailed ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-09-3974", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8459892868995667, "sibling_score": 0.8459892868995667, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8450009822845459, "sibling_score": 0.8450009822845459, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7928504943847656, "sibling_score": 0.7928504943847656, "answer_score": null, "sibling_qid": "CHE-2026-03-0253-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "MUM-2026-09-3974-Q004", "text": "How should a ship follow the MLC requirements of flag?", "family": "Surveys - Statutory", "subtopic": "Flag State", "tid": "MUM-2026-09-3974", "tray": "new", "candidates": [ { "answer_id": "FLAG-ST-007", "score": 0.5534175038337708, "sibling_score": 0.5534175038337708, "answer_score": 0.49985375404357907, "sibling_qid": "MUM-2024-10-0211-Q011", "sibling_text": "10 how flag state ensure mlc is complying", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Flag State enforcement of MLC compliance", "cross_family": false }, { "answer_id": "IACS-324-002", "score": 0.5211849808692932, "sibling_score": 0.5211849808692932, "answer_score": null, "sibling_qid": "KOC-2023-05-0192-Q004", "sibling_text": "y ship need to be classed classification society functions", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "2. What is a classification society, why does a ship need class, and what are its functions?", "cross_family": false }, { "answer_id": "CERT-LIST-P01-001", "score": 0.5147413611412048, "sibling_score": 0.5147413611412048, "answer_score": null, "sibling_qid": "MUM-2026-06-3624-Q006", "sibling_text": "name all statutory certificates on ur ship", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "List the statutory certificates carried onboard a ship.", "cross_family": false } ] }, { "qid": "MUM-2026-09-3974-Q009", "text": "How to parallel two generators,what is phase angle and what’s protection activates when the phase angle is not matches?", "family": "Electrical - Generator & Alternator", "subtopic": "Synchronization", "tid": "MUM-2026-09-3974", "tray": "review", "candidates": [ { "answer_id": "SYNC-B-002", "score": 0.7652096152305603, "sibling_score": 0.7652096152305603, "answer_score": 0.5223886728286743, "sibling_qid": "CHE-2025-08-0275-Q002", "sibling_text": "2 whats the things to you need for paralleling generator what is phase angle", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Phase angle and the in-phase (12 o’clock) condition", "cross_family": false }, { "answer_id": "SYNC-D-001", "score": 0.7590495944023132, "sibling_score": 0.7590495944023132, "answer_score": 0.5221656501293183, "sibling_qid": "KOC-2025-08-1565-Q005", "sibling_text": "generator parallel when not in phase", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Closing the breaker out of phase — wrong-synchronizing consequences", "cross_family": false }, { "answer_id": "SYNC-C-001", "score": 0.7511929869651794, "sibling_score": 0.7511929869651794, "answer_score": 0.5721322596073151, "sibling_qid": "KOL-2018-08-2217-Q001", "sibling_text": "paralleling of generater what do you mean by phase in gen should be in same phase how phase could change", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Paralleling generators — procedure, conditions and practical checks", "cross_family": false } ] }, { "qid": "MUM-2026-09-3974-Q010", "text": "What is internally safe equipment ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Zener / Diode / Rectifier", "tid": "MUM-2026-09-3974", "tray": "new", "candidates": [ { "answer_id": "HAZ-EX-B-001", "score": 0.6363998055458069, "sibling_score": 0.6363998055458069, "answer_score": 0.4164393126964569, "sibling_qid": "MUM-2026-06-3651-Q007", "sibling_text": "intrinsic safe equipment", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Intrinsically safe (Ex i) equipment — what it is, how it works, where it is used, how you identify it", "cross_family": false }, { "answer_id": "SEQ-330-001", "score": 0.5779415965080261, "sibling_score": 0.5779415965080261, "answer_score": null, "sibling_qid": "KOC-2025-01-0501-Q006", "sibling_text": "safety equipment survey internal", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Safety Equipment survey — what it is, its scope, and what is checked", "cross_family": true }, { "answer_id": "MSB-ESB-E-001", "score": 0.5302661657333374, "sibling_score": 0.5302661657333374, "answer_score": null, "sibling_qid": "KOL-2020-03-2376-Q001", "sibling_text": "safeties of msb based on equipment", "sibling_family": "", "via": "sibling", "answer_title": "What safeties, protection trips, relays and alarms are provided on the MSB / ESB, and how are they tested?", "cross_family": false } ] }, { "qid": "MUM-2026-09-3975-Q001", "text": "What type of ship ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-09-3975", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8168492913246155, "sibling_score": 0.8168492913246155, "answer_score": null, "sibling_qid": "MUM-2026-03-1005-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.7904811501502991, "sibling_score": 0.7904811501502991, "answer_score": 0.5098933219909668, "sibling_qid": "MUM-2026-02-0731-Q002", "sibling_text": "what type of ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.7817003726959229, "sibling_score": 0.7817003726959229, "answer_score": 0.5349139153957366, "sibling_qid": "KOC-2026-09-2198-Q001", "sibling_text": "type a and b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false } ] }, { "qid": "MUM-2026-09-3975-Q002", "text": "Draw power card with VIT and super VIT?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Engine Theory / Performance", "tid": "MUM-2026-09-3975", "tray": "review", "candidates": [ { "answer_id": "IND-CARD-A-001", "score": 0.7032966017723083, "sibling_score": 0.7032966017723083, "answer_score": 0.3002409145236015, "sibling_qid": "KOL-2019-10-1484-Q009", "sibling_text": "super impose the draw card on power card", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Reading the power / draw card — what it tells you", "cross_family": false }, { "answer_id": "IND-CARD-002", "score": 0.6855353713035583, "sibling_score": 0.6855353713035583, "answer_score": 0.33083000779151917, "sibling_qid": "MUM-2022-11-2715-Q017", "sibling_text": "draw card power card", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Differentiate power card, draw card and light-spring diagram, and their significance", "cross_family": false }, { "answer_id": "ETP-344-P01-003", "score": 0.6773086190223694, "sibling_score": 0.6773086190223694, "answer_score": 0.3597601607441902, "sibling_qid": "CHE-2025-12-0460-Q002", "sibling_text": "draw power card", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Indicator cards — power, draw, compression, light-spring", "cross_family": false } ] }, { "qid": "MUM-2026-09-3975-Q003", "text": "What type of tie rod ?", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Tie Rod / Tie Bolt", "tid": "MUM-2026-09-3975", "tray": "review", "candidates": [ { "answer_id": "TR-TB-PA-001", "score": 0.6988319754600525, "sibling_score": 0.6988319754600525, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q006", "sibling_text": "tie rod in me c", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Function of tie rods and the firing-load path", "cross_family": false }, { "answer_id": "TR-TB-PA-004", "score": 0.6764180064201355, "sibling_score": 0.6764180064201355, "answer_score": 0.4543344259262085, "sibling_qid": "KOL-2021-10-0558-Q006", "sibling_text": "tie rod developments", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Arrangement, number and position; twin tie rods and MC/MC-C developments", "cross_family": false }, { "answer_id": "TBR-TT-P02-001", "score": 0.6692556738853455, "sibling_score": 0.6692556738853455, "answer_score": 0.4464210212230682, "sibling_qid": "MUM-2026-05-3259-Q002", "sibling_text": "tie rod bolt pretensioned or pre compressed", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Tie rod tightening / hydraulic tensioning procedure", "cross_family": false } ] }, { "qid": "MUM-2026-09-3975-Q005", "text": "What type of boiler ?", "family": "Boilers - Construction & Components", "subtopic": "Boiler Types / Construction", "tid": "MUM-2026-09-3975", "tray": "review", "candidates": [ { "answer_id": "BLR-CAP-BOILER-CAPACITY-RATING-005", "score": 0.8134037852287292, "sibling_score": 0.8134037852287292, "answer_score": null, "sibling_qid": "MUM-2026-09-3892-Q008", "sibling_text": "type of boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "What are boiler pressure ratings or maximum working pressure?", "cross_family": false }, { "answer_id": "BLR-TUBE-P01-002", "score": 0.8034403920173645, "sibling_score": 0.8034403920173645, "answer_score": 0.5544903635978699, "sibling_qid": "CHE-2026-05-0555-Q009", "sibling_text": "what type boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "03. Types, functions and arrangement of boiler tubes", "cross_family": false }, { "answer_id": "BLR-DRUM-002", "score": 0.7840514183044434, "sibling_score": 0.7840514183044434, "answer_score": null, "sibling_qid": "MUM-2026-06-3660-Q005", "sibling_text": "boiler type and boiler construction", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Steam-drum construction, material and plate manufacture, and construction-stage tests", "cross_family": false } ] }, { "qid": "MUM-2026-09-3975-Q006", "text": "Type of superheater in your ship ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-09-3975", "tray": "review", "candidates": [ { "answer_id": "SH-332-002", "score": 0.6561992168426514, "sibling_score": 0.6561992168426514, "answer_score": 0.4478455394506454, "sibling_qid": "MUM-2025-03-1101-Q010", "sibling_text": "type of boiler on your ship what are super heater tubes and their arrangement", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Where superheater tubes are fitted; attachment, support and expansion", "cross_family": true }, { "answer_id": "SH-332-004", "score": 0.6549376845359802, "sibling_score": 0.6549376845359802, "answer_score": 0.52722647190094, "sibling_qid": "KOL-2025-11-4070-Q005", "sibling_text": "types of superheater", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Types of superheater and methods of achieving superheating", "cross_family": true }, { "answer_id": "SH-332-001", "score": 0.6384972929954529, "sibling_score": 0.6384972929954529, "answer_score": 0.45059182941913606, "sibling_qid": "KOL-2026-07-4265-Q003", "sibling_text": "superheater", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Function and purpose of the superheater; advantages of superheated steam", "cross_family": true } ] }, { "qid": "MUM-2026-09-3975-Q007", "text": "How superheater connected to boiler ?", "family": "Boilers - Construction & Components", "subtopic": "Super Heater", "tid": "MUM-2026-09-3975", "tray": "review", "candidates": [ { "answer_id": "BLR-TUBE-P01-003", "score": 0.7128404378890991, "sibling_score": 0.7128404378890991, "answer_score": null, "sibling_qid": "MUM-2022-04-0938-Q003", "sibling_text": "how tubes are connected to boiler said expanded and welded", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "02. Thermal expansion arrangements for boiler tubes", "cross_family": false }, { "answer_id": "FURN-REF-004", "score": 0.6752271056175232, "sibling_score": 0.6752271056175232, "answer_score": null, "sibling_qid": "KOL-2018-12-1434-Q002", "sibling_text": "y collugation added into boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Boiler furnace construction, corrugation, swirl / contraction and furnace mountings", "cross_family": false }, { "answer_id": "SH-332-005", "score": 0.6661633253097534, "sibling_score": 0.6661633253097534, "answer_score": null, "sibling_qid": "KOL-2018-01-1350-Q005", "sibling_text": "what is de superheater why required in boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Desuperheater / attemperator: what, why, and superheat control", "cross_family": false } ] }, { "qid": "MUM-2026-09-3975-Q009", "text": "Type of anchor chain in your ship ?", "family": "Auxiliary Equipment", "subtopic": "Anchor / Anchor Chain", "tid": "MUM-2026-09-3975", "tray": "review", "candidates": [ { "answer_id": "ANCH-CHN-A-002", "score": 0.7705038189888, "sibling_score": 0.7705038189888, "answer_score": 0.4958989262580871, "sibling_qid": "MUM-2026-06-3356-Q005", "sibling_text": "type of anchor type of anchor chain on your ship material", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Chain construction: material, stud links & joining shackles", "cross_family": false }, { "answer_id": "ANCH-CHN-A-001", "score": 0.7608382105827332, "sibling_score": 0.7608382105827332, "answer_score": null, "sibling_qid": "MUM-2023-08-2741-Q005", "sibling_text": "type of anchor chain", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Types of anchor & holding characteristics", "cross_family": false }, { "answer_id": "ANCH-CHN-A-006", "score": 0.7593609690666199, "sibling_score": 0.7593609690666199, "answer_score": 0.48704651594161985, "sibling_qid": "MUM-2026-03-2942-Q029", "sibling_text": "3 type anchor and chain on your ship", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Holding, securing the cable for sea, and general checks", "cross_family": false } ] }, { "qid": "MUM-2026-09-3975-Q012", "text": "What is ammonia types of ammonia ?", "family": "Turbocharger", "subtopic": "TC Construction", "tid": "MUM-2026-09-3975", "tray": "new", "candidates": [ { "answer_id": "BIO-FUEL-002", "score": 0.5928428173065186, "sibling_score": 0.5928428173065186, "answer_score": 0.43100904822349545, "sibling_qid": "MUM-2026-02-2928-Q013", "sibling_text": "green and blue ammonia", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "Green, blue and grey hydrogen and ammonia — what the colours mean", "cross_family": true }, { "answer_id": "ALT-FUEL-005", "score": 0.575097918510437, "sibling_score": 0.575097918510437, "answer_score": 0.43712074160575864, "sibling_qid": "KOC-2021-12-0041-Q004", "sibling_text": "green ammonia", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is green ammonia and why is it discussed as a marine fuel?", "cross_family": true }, { "answer_id": "AV6-P03-03", "score": 0.559822678565979, "sibling_score": 0.559822678565979, "answer_score": null, "sibling_qid": "KOC-2026-09-2209-Q002", "sibling_text": "ammonia slip", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "SCR operation, urea/ammonia dosing and ammonia slip — 2/E responsibilities", "cross_family": true } ] }, { "qid": "MUM-2026-09-3976-Q001", "text": "Type of ship sailed", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-09-3976", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.8459892868995667, "sibling_score": 0.8459892868995667, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.8450009822845459, "sibling_score": 0.8450009822845459, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.7928504943847656, "sibling_score": 0.7928504943847656, "answer_score": null, "sibling_qid": "CHE-2026-03-0252-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "MUM-2026-09-3976-Q002", "text": "How much displacement ?", "family": "Ship Construction & Stability", "subtopic": "DEFINITION", "tid": "MUM-2026-09-3976", "tray": "new", "candidates": [ { "answer_id": "TONN-005", "score": 0.6206255555152893, "sibling_score": 0.6206255555152893, "answer_score": 0.39686256051063534, "sibling_qid": "MUM-2026-08-3833-Q009", "sibling_text": "what is displacement in simple terms", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Displacement — meaning and calculation", "cross_family": false }, { "answer_id": "TONN-006", "score": 0.5299214720726013, "sibling_score": 0.5299214720726013, "answer_score": null, "sibling_qid": "MUM-2026-09-3976-Q003", "sibling_text": "displacement and deadweight", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Relation between Displacement, Lightweight and Deadweight", "cross_family": false }, { "answer_id": "TONN-007", "score": 0.4892016649246216, "sibling_score": 0.4892016649246216, "answer_score": null, "sibling_qid": "MUM-2025-11-0556-Q005", "sibling_text": "wt is relation between dwt and displacement", "sibling_family": "", "via": "sibling", "answer_title": "Differentiate GT, NT, GRT/NRT, DWT, Lightweight and Displacement", "cross_family": false } ] }, { "qid": "MUM-2026-09-3976-Q006", "text": "what is Nox technical file and under which annexes what are entries made for ME overhaul. Is ME safety entry is there or not.?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "NOx Limits / Tier", "tid": "MUM-2026-09-3976", "tray": "review", "candidates": [ { "answer_id": "A6-NSEC-002", "score": 0.6722651720046997, "sibling_score": 0.6722651720046997, "answer_score": 0.4243185192346573, "sibling_qid": "KOL-2026-02-1170-Q009", "sibling_text": "entries made in nox technical file", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "NOx Technical Code vs NOx Technical File", "cross_family": false }, { "answer_id": "AVICERT-008", "score": 0.44983962178230286, "sibling_score": null, "answer_score": 0.44983962178230286, "sibling_qid": "", "sibling_text": "what is marpol annex vi what documents are carried under it and what is the nox technical file and its contents annex vi scope nox sox pm ods voc incineration plus energy efficiency cii document set iapp ieec applicable eiapps nox eexi technical files seemp ods book bdn sample the integrated dcs cii statement", "sibling_family": "", "via": "answer_title", "answer_title": "What is MARPOL Annex VI, what documents are carried under it, and what is the NOx Technical File and its contents?", "cross_family": false }, { "answer_id": "AVICERT-010", "score": 0.43124331831932067, "sibling_score": null, "answer_score": 0.43124331831932067, "sibling_qid": "", "sibling_text": "explain the full annex vi certificate set including the seemp and the nox technical file certificates iapp supplement ieec eiapp per applicable engine files nox technical file eexi technical file", "sibling_family": "", "via": "answer_title", "answer_title": "Explain the full Annex VI certificate set including the SEEMP and the NOx Technical File.", "cross_family": false } ] }, { "qid": "MUM-2026-09-3976-Q007", "text": "Why oil tanker not comes under ANNEX II ?", "family": "Other Conventions", "subtopic": "IMDG Code", "tid": "MUM-2026-09-3976", "tray": "new", "candidates": [ { "answer_id": "CERT-LIST-P02-003", "score": 0.6146931648254395, "sibling_score": 0.6146931648254395, "answer_score": null, "sibling_qid": "KOL-2026-05-0047-Q004", "sibling_text": "any certificate of oil tanker not on container ship", "sibling_family": "Surveys & Certification", "via": "sibling", "answer_title": "Certificates that decide ship type and permitted cargo", "cross_family": true }, { "answer_id": "ODC-019", "score": 0.6012098789215088, "sibling_score": 0.6012098789215088, "answer_score": 0.48090645074844357, "sibling_qid": "CHE-2026-04-0518-Q001", "sibling_text": "define crude oil tanker as per annex where it is mentioned", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Annex I definitions — crude oil tanker and the terms around it", "cross_family": true }, { "answer_id": "IGC-IGF-003", "score": 0.5832574963569641, "sibling_score": 0.5832574963569641, "answer_score": null, "sibling_qid": "KOC-2025-03-0552-Q022", "sibling_text": "gas tanker comes under which code", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "IGC Code — scope and which gas tankers come under it", "cross_family": false } ] }, { "qid": "MUM-2026-09-3976-Q008", "text": "OIL pollution compensation Body and its level ?", "family": "Other Conventions", "subtopic": "CLC / Civil Liability", "tid": "MUM-2026-09-3976", "tray": "new", "candidates": [ { "answer_id": "CLC-CIV-A-005", "score": 0.6356737613677979, "sibling_score": 0.6356737613677979, "answer_score": 0.4006683349609375, "sibling_qid": "KOC-2024-07-0359-Q003", "sibling_text": "iopc international oil pollution compensation", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Fund Convention — IOPC and the Supplementary Fund", "cross_family": false }, { "answer_id": "CLC-CIV-B-001", "score": 0.6052113175392151, "sibling_score": 0.6052113175392151, "answer_score": 0.46014142632484434, "sibling_qid": "KOL-2024-09-0865-Q004", "sibling_text": "3 conventions dealing with compensation from oil pollution damage", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "The conventions for oil-pollution compensation: CLC, Fund, Supplementary Fund", "cross_family": false }, { "answer_id": "SOPEP-003", "score": 0.5635657906532288, "sibling_score": 0.5635657906532288, "answer_score": null, "sibling_qid": "MUM-2022-07-0017-Q008", "sibling_text": "3 tiers of oil pollution", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Oil Spill and Bunkering-Spill Response under the SOPEP", "cross_family": true } ] }, { "qid": "MUM-2026-09-3976-Q009", "text": "Why compensation is paid in only SDR ?", "family": "Automation & Controls", "subtopic": "Droop", "tid": "MUM-2026-09-3976", "tray": "new", "candidates": [ { "answer_id": "GOV-082-P01-013", "score": 0.39198029041290283, "sibling_score": 0.39198029041290283, "answer_score": 0.1865528643131256, "sibling_qid": "KOC-2025-01-1895-Q015", "sibling_text": "compensation rate and compensation range", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Compensation — needle valve, rate and range, boost, and how to adjust", "cross_family": false }, { "answer_id": "CLC-CIV-A-005", "score": 0.3811505436897278, "sibling_score": 0.3811505436897278, "answer_score": null, "sibling_qid": "MUM-2022-10-2714-Q005", "sibling_text": "supplementary protocol why which convention value given in the protocol for sdr why value increased", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Fund Convention — IOPC and the Supplementary Fund", "cross_family": true }, { "answer_id": "DROOP-005", "score": 0.34437650442123413, "sibling_score": 0.34437650442123413, "answer_score": null, "sibling_qid": "KOC-2025-11-1067-Q003", "sibling_text": "compensation in governor", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Compensation in a governor — temporary droop for stability", "cross_family": false } ] }, { "qid": "MUM-2026-09-3976-Q011", "text": "Under shipboard management for 2nd Eng which convention applicable?", "family": "ISM Code", "subtopic": "2E Responsibility", "tid": "MUM-2026-09-3976", "tray": "new", "candidates": [ { "answer_id": "ISM-AUD-P03-003", "score": 0.6062177419662476, "sibling_score": 0.6062177419662476, "answer_score": null, "sibling_qid": "KOC-2024-03-0327-Q009", "sibling_text": "major non conformity on ship something engie related whats your action as 2nd engineer", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Non-conformity, major non-conformity and incident reporting under SMS", "cross_family": false }, { "answer_id": "FIRE-P05-07", "score": 0.5920512676239014, "sibling_score": 0.5920512676239014, "answer_score": null, "sibling_qid": "MUM-2026-02-0737-Q010", "sibling_text": "as a 2nd engineer how to maintain engine room to make sure engine room condition according to solas ch 2", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "2/E engine-room fire-prevention condition — SOLAS II-2 duties on DGS schedule", "cross_family": true }, { "answer_id": "A6-NSEC-003", "score": 0.5882777571678162, "sibling_score": 0.5882777571678162, "answer_score": null, "sibling_qid": "CHE-2025-08-0206-Q008", "sibling_text": "nox control and t2 t3 difference mathews ss morthy fuc 3 slope tank epirb ais condition of assignment of freeboard iopp survey and documents last entry to make in orb before reaching port hongkong convention what you do as 2 nd engineer before the ship going to recycling welding on deck in oil tanker how you will make preperation as 2nd engineer", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "NOx — formation, limits & reduction (SCR / EGR)", "cross_family": true } ] }, { "qid": "MUM-2026-09-3976-Q013", "text": "What is dynamic load testing and why its doing ?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Lifeboat Static / Dynamic Test", "tid": "MUM-2026-09-3976", "tray": "new", "candidates": [ { "answer_id": "LB-SDT-A-001", "score": 0.6282091736793518, "sibling_score": 0.6282091736793518, "answer_score": 0.3544930100440979, "sibling_qid": "CHE-2026-08-0672-Q004", "sibling_text": "dynamic and static load test", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat static and dynamic test — purpose and procedure", "cross_family": false }, { "answer_id": "LBT-TEST-B-001", "score": 0.6221364140510559, "sibling_score": 0.6221364140510559, "answer_score": null, "sibling_qid": "KOL-2024-12-0896-Q005", "sibling_text": "dynamic and static load testing and xx met", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Lifeboat/davit load-test proof loads and test conditions", "cross_family": false }, { "answer_id": "LBT-TEST-B-002", "score": 0.5479742288589478, "sibling_score": 0.5479742288589478, "answer_score": null, "sibling_qid": "KOL-2024-11-0884-Q006", "sibling_text": "life boat 5 yearly maintenance purpose of dynamic and static load testing", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Annual and 5-yearly lifeboat/davit tests (the servicing regime)", "cross_family": false } ] }, { "qid": "MUM-2026-09-3976-Q016", "text": "How to remove breaker and inspect with full procedure ?(Mention RACKING OUT)", "family": "Cargo Ops - Tankers", "subtopic": "Mast Riser / Deck Seal / P/V Valve", "tid": "MUM-2026-09-3976", "tray": "new", "candidates": [ { "answer_id": "CBKR-D-ISORACK-001", "score": 0.6105981469154358, "sibling_score": 0.6105981469154358, "answer_score": 0.4904317796230316, "sibling_qid": "MUM-2026-02-1921-Q002", "sibling_text": "racking out of ckt breaker and safeties", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "How do you safely isolate, rack out, withdraw and prove dead an ACB/VCB before work?", "cross_family": true }, { "answer_id": "CBR-ARC-G-002", "score": 0.5741010308265686, "sibling_score": 0.5741010308265686, "answer_score": null, "sibling_qid": "CHE-2026-05-0603-Q013", "sibling_text": "breaker components", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "ACB construction, contacts, arc chutes, auxiliaries and VCB parts", "cross_family": false }, { "answer_id": "MAST-PVA-003", "score": 0.5501661896705627, "sibling_score": 0.5501661896705627, "answer_score": null, "sibling_qid": "KOC-2022-12-0114-Q005", "sibling_text": "draw pv breaker", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "P/V breaker — construction and working principle", "cross_family": false } ] }, { "qid": "MUM-2026-09-3977-Q003", "text": "What if shore connection is 50 hz ? told I will use frequency converter, if there is no frequency converter what will you do. What all other checks. Phase sequence check. Voltage same. What happens if phase sequence not same?", "family": "Electrical - Distribution & MSB", "subtopic": "Voltage System (440V / 690V / HV)", "tid": "MUM-2026-09-3977", "tray": "review", "candidates": [ { "answer_id": "SHORE-CONN-P02-003", "score": 0.7429648637771606, "sibling_score": 0.7429648637771606, "answer_score": null, "sibling_qid": "KOL-2024-02-2694-Q003", "sibling_text": "shore supply connection condition of taking it what if supply frequency or voltage is less where is phase sequence indicator located", "sibling_family": "", "via": "sibling", "answer_title": "Phase sequence — checking, correcting, and when the indicator is dead", "cross_family": false }, { "answer_id": "VOLT-SYS-001", "score": 0.7139230370521545, "sibling_score": 0.7139230370521545, "answer_score": null, "sibling_qid": "MUM-2023-03-1381-Q004", "sibling_text": "what is your ship voltage and frequency a you go to yard and yard is supplying at 50 hz would you take it b if so under what condition", "sibling_family": "Electrical - Distribution & MSB", "via": "sibling", "answer_title": "Shipboard voltages and frequency in use", "cross_family": false }, { "answer_id": "SHORE-CONN-P04-001", "score": 0.7136082649230957, "sibling_score": 0.7136082649230957, "answer_score": 0.5672204405069351, "sibling_qid": "KOL-2022-05-2561-Q003", "sibling_text": "shore power supply we got 50 hz instead of 60 hzs how will you proceed", "sibling_family": "", "via": "sibling", "answer_title": "Accepting shore supply at a different frequency or voltage (incl. dry dock)", "cross_family": false } ] }, { "qid": "MUM-2026-09-3977-Q004", "text": "What is shunt ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Galvanometer / Multimeter / Clamp Meter", "tid": "MUM-2026-09-3977", "tray": "new", "candidates": [ { "answer_id": "GMC-583-B-003", "score": 0.6427773237228394, "sibling_score": 0.6427773237228394, "answer_score": null, "sibling_qid": "MUM-2024-07-1082-Q011", "sibling_text": "what is shunt", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Connecting the meters in circuit, and extending the range with a shunt or a multiplier", "cross_family": false }, { "answer_id": "DCMOT-A-001", "score": 0.5642549991607666, "sibling_score": 0.5642549991607666, "answer_score": null, "sibling_qid": "MUM-2024-03-1431-Q006", "sibling_text": "what is meant by shunt where it is used", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types, characteristics and shipboard use of DC motors", "cross_family": true }, { "answer_id": "XFMR-THY-B-003", "score": 0.36163970828056335, "sibling_score": 0.36163970828056335, "answer_score": null, "sibling_qid": "MUM-2026-03-2001-Q002", "sibling_text": "short circuit", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Transformer short-circuit (impedance) test and copper-loss measurement", "cross_family": false } ] }, { "qid": "MUM-2026-09-3979-Q001", "text": "Type of ship? company? experience after class iv coc in months?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-09-3979", "tray": "new", "candidates": [ { "answer_id": "STCW-MAN-006", "score": 0.6291243433952332, "sibling_score": 0.6291243433952332, "answer_score": null, "sibling_qid": "NOI-2026-09-0008-Q001", "sibling_text": "training institue sea time after class 4 coc", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "What are the levels and categories of seafarer under STCW, and what are the duties of the Second Engineer at management level?", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.5946503281593323, "sibling_score": 0.5946503281593323, "answer_score": null, "sibling_qid": "KOC-2026-03-0873-Q001", "sibling_text": "type of ship company", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.591574490070343, "sibling_score": 0.591574490070343, "answer_score": null, "sibling_qid": "MUM-2026-03-0866-Q001", "sibling_text": "coc attempt internal sirish sir external vishwanathan iyer sir started with what function you are applying how many ships type of ships you did after class 4 pre sea from where how many written cleared what about other functions", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false } ] }, { "qid": "MUM-2026-09-3979-Q002", "text": "Last ship engine?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-09-3979", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-003", "score": 0.701683521270752, "sibling_score": 0.701683521270752, "answer_score": null, "sibling_qid": "KOC-2025-08-1938-Q005", "sibling_text": "last ship engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Engine nomenclature, layout, mark number and engine constant", "cross_family": true }, { "answer_id": "ENG-NOM-005", "score": 0.6951484084129333, "sibling_score": 0.6951484084129333, "answer_score": null, "sibling_qid": "MUM-2026-05-3164-Q001", "sibling_text": "last ship sailed main engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true }, { "answer_id": "ILK-318-001", "score": 0.6326847672462463, "sibling_score": 0.6326847672462463, "answer_score": null, "sibling_qid": "MUM-2022-09-1021-Q005", "sibling_text": "interlocks in me engine in your last ship", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "1. What are the main engine interlocks?", "cross_family": true } ] }, { "qid": "MUM-2026-09-3979-Q005", "text": "What are things done electronically in ME engines?", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-09-3979", "tray": "new", "candidates": [ { "answer_id": "EGTP-P02-005", "score": 0.624281108379364, "sibling_score": 0.624281108379364, "answer_score": null, "sibling_qid": "MUM-2026-07-3743-Q001", "sibling_text": "provide the complete nomenclature and explanation of modern electronic main engines", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "MC / MC-C / ME-C and Electronically Controlled Engines", "cross_family": false }, { "answer_id": "GOV-P02-001", "score": 0.6163199543952942, "sibling_score": 0.6163199543952942, "answer_score": null, "sibling_qid": "KOC-2023-09-1283-Q008", "sibling_text": "me electronic governor working", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Electronic governor — draw, block diagram & working", "cross_family": true }, { "answer_id": "CR-248-002", "score": 0.6024872064590454, "sibling_score": 0.6024872064590454, "answer_score": null, "sibling_qid": "KOL-2023-07-1747-Q009", "sibling_text": "fuel injection in electronic engine", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "How fuel is injected in electronically controlled ME / RT-flex engines — how rail or hydraulic pressure produces injection", "cross_family": true } ] }, { "qid": "MUM-2026-09-3979-Q007", "text": "AC refringent properties?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "LO Test / Analysis", "tid": "MUM-2026-09-3979", "tray": "new", "candidates": [ { "answer_id": "FORMCO-313-002", "score": 0.5388208627700806, "sibling_score": 0.5388208627700806, "answer_score": null, "sibling_qid": "KOL-2025-11-1126-Q003", "sibling_text": "prismatic coeff", "sibling_family": "", "via": "sibling", "answer_title": "Prismatic coefficient (Cp) and vertical prismatic (Cvp)", "cross_family": false }, { "answer_id": "VOLT-SYS-007", "score": 0.5116738080978394, "sibling_score": 0.5116738080978394, "answer_score": 0.3397310048341751, "sibling_qid": "MUM-2025-05-1516-Q002", "sibling_text": "ac characteristics", "sibling_family": "Electrical - Distribution & MSB", "via": "sibling", "answer_title": "AC characteristics and basic AC circuit components", "cross_family": true }, { "answer_id": "PI-211-001", "score": 0.5009725093841553, "sibling_score": 0.5009725093841553, "answer_score": null, "sibling_qid": "KOL-2026-03-2976-Q010", "sibling_text": "polarisation index value for good pi 2", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What polarization index is, why we use it, and the value expected", "cross_family": true } ] }, { "qid": "MUM-2026-09-3980-Q001", "text": "GME AND COMPANY DETAILS?", "family": "Status & Introduction", "subtopic": "Company Introduction", "tid": "MUM-2026-09-3980", "tray": "new", "candidates": [ { "answer_id": "MEGI-304-002", "score": 0.4398058354854584, "sibling_score": 0.4398058354854584, "answer_score": null, "sibling_qid": "KOL-2026-01-2036-Q001", "sibling_text": "what is me g", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "2. ME-GI / ME-GA / ME-G and recent dual-fuel engine advancements", "cross_family": true }, { "answer_id": "GM-META-007", "score": 0.4364127516746521, "sibling_score": 0.4364127516746521, "answer_score": 0.26444285809993745, "sibling_qid": "KOC-2022-04-0072-Q014", "sibling_text": "gm and it s significance", "sibling_family": "", "via": "sibling", "answer_title": "Why GM matters: restoring action and the regulatory floor", "cross_family": false }, { "answer_id": "GM-META-006", "score": 0.41312122344970703, "sibling_score": 0.41312122344970703, "answer_score": null, "sibling_qid": "MUM-2022-09-0048-Q011", "sibling_text": "what is gm and gz", "sibling_family": "", "via": "sibling", "answer_title": "GM and the righting lever GZ", "cross_family": false } ] }, { "qid": "MUM-2026-09-3980-Q002", "text": "Last ship sailed? LPG", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-09-3980", "tray": "review", "candidates": [ { "answer_id": "LPG-LNG-009", "score": 0.675585150718689, "sibling_score": 0.675585150718689, "answer_score": 0.3825971126556396, "sibling_qid": "CHE-2026-04-0164-Q001", "sibling_text": "type of ship sailed lpg carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Gas-carrier fundamentals and ship-specific traps", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.6000788807868958, "sibling_score": 0.6000788807868958, "answer_score": null, "sibling_qid": "MUM-2026-04-1320-Q002", "sibling_text": "ship sailed on", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "LPG-LNG-001", "score": 0.5793893933296204, "sibling_score": 0.5793893933296204, "answer_score": null, "sibling_qid": "MUM-2026-09-3961-Q001", "sibling_text": "how lpg ship differ from other ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "LPG vs LNG – properties, carriage and comparison", "cross_family": false } ] }, { "qid": "MUM-2026-09-3980-Q005", "text": "Material used in LPG SHIP ? gRADE OF STEEL used?", "family": "NDT & Material Testing", "subtopic": "Steel Grades for Ship", "tid": "MUM-2026-09-3980", "tray": "review", "candidates": [ { "answer_id": "STEEL-GR-001", "score": 0.7019917964935303, "sibling_score": 0.7019917964935303, "answer_score": 0.5292471528053283, "sibling_qid": "KOC-2022-01-1777-Q008", "sibling_text": "type of steel used for ship structure", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Materials and steel grades for ship and hull construction", "cross_family": false }, { "answer_id": "STEEL-GR-002", "score": 0.6854147911071777, "sibling_score": 0.6854147911071777, "answer_score": null, "sibling_qid": "MUM-2026-06-3458-Q010", "sibling_text": "grade of steel used for ship construction and cross", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Mild steel — composition, use, and how it differs from cast iron", "cross_family": true }, { "answer_id": "MATPROP-A-007", "score": 0.5583765923976898, "sibling_score": null, "answer_score": 0.5583765923976898, "sibling_qid": "", "sibling_text": "materials for ship and engine components hull class approved steel normal grades a b d e and higher strength ah dh eh iacs ur w11 grades separated by charpy impact test temperature 20 0 20 40 c representative", "sibling_family": "", "via": "answer_title", "answer_title": "Materials for ship and engine components", "cross_family": false } ] }, { "qid": "MUM-2026-09-3980-Q006", "text": "safety on cargo system of LPG ship?", "family": "Cargo Ops - Gas Carriers", "subtopic": "LPG / LNG", "tid": "MUM-2026-09-3980", "tray": "review", "candidates": [ { "answer_id": "IGC-GAS-012", "score": 0.7206981778144836, "sibling_score": 0.7206981778144836, "answer_score": null, "sibling_qid": "MUM-2025-05-0269-Q001", "sibling_text": "lng safety in compressor room motor room safety arrangement near accomodation door in lng tanker boil off line going to the er what safety arrangement present what certificate does a gas carrier carrier that is not carried by tanker fire fighting arrangement on the liquid dome of a cargo tank isps code which level is the highest is cargo operation allowed in that level difference between igc and gc code vikrant rai what is bleve and what arrangement on ship to provide safety against this how do you prepare for surface hardeneing mep and mip", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Compressor-room and motor-room safeties (including the fusible plug)", "cross_family": false }, { "answer_id": "IGC-GAS-002", "score": 0.7118701338768005, "sibling_score": 0.7118701338768005, "answer_score": null, "sibling_qid": "MUM-2022-07-0019-Q001", "sibling_text": "type of ship sailed on types of cargo carried precautions you take while loading gas cargoes code or convention that provides safety regulations regarding gas carriers", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "The IGC Code — status, scope, which ships it governs, chapter structure", "cross_family": false }, { "answer_id": "LPG-LNG-009", "score": 0.7072389125823975, "sibling_score": 0.7072389125823975, "answer_score": null, "sibling_qid": "KOL-2026-02-1183-Q007", "sibling_text": "which material should not make contact with cargo on your ship lpg", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Gas-carrier fundamentals and ship-specific traps", "cross_family": false } ] }, { "qid": "MUM-2026-09-3980-Q007", "text": "Type of electrical system onboard slast ship?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-09-3980", "tray": "review", "candidates": [ { "answer_id": "PID-CTRL-005", "score": 0.6991472840309143, "sibling_score": 0.6991472840309143, "answer_score": null, "sibling_qid": "MUM-2026-05-3294-Q001", "sibling_text": "electric system on board", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Open-loop, closed-loop, cascade and other control types onboard", "cross_family": false }, { "answer_id": "T038-P01-002", "score": 0.6904867887496948, "sibling_score": 0.6904867887496948, "answer_score": 0.5391756653785705, "sibling_qid": "CHE-2026-04-0374-Q001", "sibling_text": "type of ship sailed high or low voltage lv ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "HV system onboard — layout, components, applications, earthing & protection", "cross_family": false }, { "answer_id": "MSB-ESB-D-001", "score": 0.6804258823394775, "sibling_score": 0.6804258823394775, "answer_score": null, "sibling_qid": "KOL-2019-10-2328-Q007", "sibling_text": "types of electrical distribution onboard ships", "sibling_family": "", "via": "sibling", "answer_title": "Main & emergency switchboards: function, construction & ship power distribution", "cross_family": false } ] }, { "qid": "MUM-2026-09-3981-Q001", "text": "Annexes for ur ship? MARPOL", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "Marpol Annex Certificates", "tid": "MUM-2026-09-3981", "tray": "review", "candidates": [ { "answer_id": "MARPOL-OV-003", "score": 0.7467390894889832, "sibling_score": 0.7467390894889832, "answer_score": null, "sibling_qid": "MUM-2026-09-3916-Q003", "sibling_text": "marpol annexes all", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "General overview of MARPOL and all annexes", "cross_family": true }, { "answer_id": "AV6-P01-02", "score": 0.7395049929618835, "sibling_score": 0.7395049929618835, "answer_score": null, "sibling_qid": "KOL-2022-07-0657-Q004", "sibling_text": "marpol how many annexes about annex 6 regulation 18", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Explain Regulation 18 — fuel oil availability and quality — and the shipboard compliance duties.", "cross_family": false }, { "answer_id": "AVI-SCOPE-002", "score": 0.7365872263908386, "sibling_score": 0.7365872263908386, "answer_score": null, "sibling_qid": "MUM-2023-10-0139-Q006", "sibling_text": "annex 6 marpol", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Explain the purpose and scope of MARPOL Annex VI.", "cross_family": false } ] }, { "qid": "MUM-2026-09-3981-Q002", "text": "wHICH PART OF Annex 1 ?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "SEEMP I/II/III", "tid": "MUM-2026-09-3981", "tray": "new", "candidates": [ { "answer_id": "ODC-001", "score": 0.616364598274231, "sibling_score": 0.616364598274231, "answer_score": null, "sibling_qid": "KOL-2023-11-0785-Q005", "sibling_text": "annex 1", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "MARPOL Annex I oil discharge criteria — the overall framework", "cross_family": true }, { "answer_id": "OILPOL-OWS-008", "score": 0.6162432432174683, "sibling_score": 0.6162432432174683, "answer_score": null, "sibling_qid": "MUM-2025-08-0393-Q002", "sibling_text": "annex 1", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "Convention and Annex I framework for oil pollution", "cross_family": true }, { "answer_id": "EEDI-B-002", "score": 0.5666834712028503, "sibling_score": 0.5666834712028503, "answer_score": null, "sibling_qid": "KOL-2019-08-0322-Q003", "sibling_text": "3 annex 6 chapt 4 part 1 and part 2", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Attained EEDI, required EEDI, reference line value and reduction factor", "cross_family": false } ] }, { "qid": "MUM-2026-09-3981-Q004", "text": "Explain MARPOL-Annex IV?\nTypes of STP?", "family": "MARPOL - Annex IV (Sewage)", "subtopic": "STP / Sewage Treatment", "tid": "MUM-2026-09-3981", "tray": "new", "candidates": [ { "answer_id": "STP-SEW-009", "score": 0.6109102368354797, "sibling_score": 0.6109102368354797, "answer_score": null, "sibling_qid": "KOL-2022-09-0683-Q004", "sibling_text": "type of stp", "sibling_family": "MARPOL - Annex IV (Sewage)", "via": "sibling", "answer_title": "Types of sewage treatment plant", "cross_family": false }, { "answer_id": "STP-SEW-001", "score": 0.5813653469085693, "sibling_score": 0.5813653469085693, "answer_score": null, "sibling_qid": "MUM-2026-03-2931-Q006", "sibling_text": "explain marpol annex iv", "sibling_family": "MARPOL - Annex IV (Sewage)", "via": "sibling", "answer_title": "MARPOL Annex IV — scope, applicability and certification", "cross_family": false }, { "answer_id": "SEW-DISCH-004", "score": 0.5813653469085693, "sibling_score": 0.5813653469085693, "answer_score": 0.4585604578256607, "sibling_qid": "MUM-2026-09-3994-Q005", "sibling_text": "explain marpol annex iv", "sibling_family": "MARPOL - Annex IV (Sewage)", "via": "sibling", "answer_title": "4. Annex IV requirements, equipment, documents and recent amendments", "cross_family": false } ] }, { "qid": "MUM-2026-09-3981-Q005", "text": "ISM CODE CERTIFICATION PROCESS FULL?", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "MUM-2026-09-3981", "tray": "review", "candidates": [ { "answer_id": "ISM-SMC-B-005", "score": 0.6779052019119263, "sibling_score": 0.6779052019119263, "answer_score": 0.4211846500635147, "sibling_qid": "KOC-2024-03-0318-Q002", "sibling_text": "ism code no of parts contents and how to get the ism certification he wants to hear sms implementation procedure then he asked will u get certificate he wants to hear interim certification", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Obtaining the DOC and SMC — who issues, who audits", "cross_family": false }, { "answer_id": "ISM-SMC-B-001", "score": 0.6669773459434509, "sibling_score": 0.6669773459434509, "answer_score": null, "sibling_qid": "KOL-2021-07-0513-Q004", "sibling_text": "ism code certificates answered doc and smc he asked name of the process for obtaining doc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "SMC — purpose, contents, issue and validity", "cross_family": false }, { "answer_id": "ISM-SMCDOC-A-001", "score": 0.6260063052177429, "sibling_score": 0.6260063052177429, "answer_score": null, "sibling_qid": "KOC-2023-01-0143-Q004", "sibling_text": "ism code certificates", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM certificates: the DOC and SMC family", "cross_family": false } ] }, { "qid": "MUM-2026-09-3981-Q007", "text": "GHG emission?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "GHG / Greenhouse", "tid": "MUM-2026-09-3981", "tray": "review", "candidates": [ { "answer_id": "GHG-591-001", "score": 0.7299105525016785, "sibling_score": 0.7299105525016785, "answer_score": null, "sibling_qid": "KOC-2025-01-0525-Q006", "sibling_text": "ghg emissions internal", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is a greenhouse gas, which gases are they, and what is the greenhouse effect?", "cross_family": false }, { "answer_id": "MEPC-GHG-005", "score": 0.7153107523918152, "sibling_score": 0.7153107523918152, "answer_score": null, "sibling_qid": "KOL-2025-08-1005-Q005", "sibling_text": "revised ghg", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "The IMO GHG Strategy and its revised version — the new and latest GHG measures, the strategy on CO2, and the requirements for reducing GHG.", "cross_family": false }, { "answer_id": "AVI-SCOPE-005", "score": 0.6953608393669128, "sibling_score": 0.6953608393669128, "answer_score": null, "sibling_qid": "MUM-2024-06-0177-Q003", "sibling_text": "ghg gases", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What pollutants, gases, emissions and substances are controlled under MARPOL Annex VI?", "cross_family": false } ] }, { "qid": "MUM-2026-09-3981-Q009", "text": "Hardous zone ? engine room", "family": "Boilers - Construction & Components", "subtopic": "Boiler Tubes", "tid": "MUM-2026-09-3981", "tray": "new", "candidates": [ { "answer_id": "CO2-SYS-005", "score": 0.6060388684272766, "sibling_score": 0.6060388684272766, "answer_score": null, "sibling_qid": "KOC-2025-07-0633-Q038", "sibling_text": "fixed sys for engine room", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 system safeties, CO2-room requirements, alarms and ventilation", "cross_family": true }, { "answer_id": "UMS-310-001", "score": 0.5735767483711243, "sibling_score": 0.5735767483711243, "answer_score": null, "sibling_qid": "KOL-2018-08-3169-Q008", "sibling_text": "ums engine room requirements", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a UMS ship and what does SOLAS require? (Part E, regs 46–53)", "cross_family": true }, { "answer_id": "STEER-055-A-005", "score": 0.5654764175415039, "sibling_score": 0.5654764175415039, "answer_score": null, "sibling_qid": "MUM-2026-05-3154-Q010S2", "sibling_text": "then asked about where in engine room", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Checks, clearances, trials and steering-room duties", "cross_family": false } ] }, { "qid": "MUM-2026-09-3981-Q010", "text": "Deck fire fighting system ?", "family": "SOLAS - Fire Safety", "subtopic": "Foam System / Monitor", "tid": "MUM-2026-09-3981", "tray": "review", "candidates": [ { "answer_id": "FOAM-P02-001", "score": 0.8362978100776672, "sibling_score": 0.8362978100776672, "answer_score": null, "sibling_qid": "KOL-2018-05-0174-Q004", "sibling_text": "deck fire fighting system", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Draw and explain the fixed deck foam firefighting system used on a tanker.", "cross_family": false }, { "answer_id": "FFF-A-001", "score": 0.8332598805427551, "sibling_score": 0.8332598805427551, "answer_score": null, "sibling_qid": "MUM-2025-08-0393-Q004", "sibling_text": "deck firefighting system", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fixed firefighting on deck and in the cargo area — tankers, chemical and gas carriers", "cross_family": false }, { "answer_id": "DCP-FIXED-A-001", "score": 0.7973729968070984, "sibling_score": 0.7973729968070984, "answer_score": 0.5134223699569702, "sibling_qid": "KOC-2026-01-0787-Q004", "sibling_text": "fixed fire fighting system used on deck i explained abt dcp", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Draw and explain the fixed DCP/dry-powder deck fire-fighting system", "cross_family": false } ] }, { "qid": "MUM-2026-09-3981-Q013", "text": "Precautions while refilling DCP tanks?", "family": "Electrical - Motors & Starters", "subtopic": "IR Test / Insulation Resistance", "tid": "MUM-2026-09-3981", "tray": "new", "candidates": [ { "answer_id": "DCP-B-002", "score": 0.5852149128913879, "sibling_score": 0.5852149128913879, "answer_score": null, "sibling_qid": "CHE-2026-03-0126-Q001", "sibling_text": "dcp safety how you know it s fully empty", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Portable DCP extinguisher — construction, working, safeties, application and empty indication", "cross_family": true }, { "answer_id": "REEF-COMP-001", "score": 0.5682932734489441, "sibling_score": 0.5682932734489441, "answer_score": null, "sibling_qid": "MUM-2026-05-3285-Q008", "sibling_text": "refer compressor charging precautions", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Reefer/AC compressor safeties and cut-outs — safety valve, HP and LP cut-outs", "cross_family": true }, { "answer_id": "ESE-P01-005", "score": 0.5470720529556274, "sibling_score": 0.5470720529556274, "answer_score": null, "sibling_qid": "KOL-2018-03-3962-Q003", "sibling_text": "after discharging u have to do tank inspection tell all the steps and checks to be made before entry", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "Cargo tank, pump-room, ballast tank or duct-keel entry preparation", "cross_family": true } ] }, { "qid": "MUM-2026-09-3981-Q015", "text": "DF ENGINE safeties?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Safeties on Main Engine", "tid": "MUM-2026-09-3981", "tray": "new", "candidates": [ { "answer_id": "ILK-318-005", "score": 0.5745128989219666, "sibling_score": 0.5745128989219666, "answer_score": null, "sibling_qid": "KOC-2024-05-2048-Q010", "sibling_text": "safeties in me engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "5. Main-engine trips and shutdowns linked with interlocks", "cross_family": false }, { "answer_id": "MEGI-304-002", "score": 0.545759916305542, "sibling_score": 0.545759916305542, "answer_score": null, "sibling_qid": "MUM-2026-03-1296-Q005", "sibling_text": "latest modification in df engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "2. ME-GI / ME-GA / ME-G and recent dual-fuel engine advancements", "cross_family": false }, { "answer_id": "SFOC-005", "score": 0.4720388948917389, "sibling_score": 0.4720388948917389, "answer_score": null, "sibling_qid": "KOL-2016-10-3009-Q004", "sibling_text": "precaution to take for taking sfoc of main engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What precautions do you take when taking the SFOC of the main engine?", "cross_family": false } ] }, { "qid": "MUM-2026-09-3982-Q003", "text": "T/C types ? VGT ?", "family": "Refrigeration & AC", "subtopic": "1 Ton Refrigeration", "tid": "MUM-2026-09-3982", "tray": "new", "candidates": [ { "answer_id": "TEV-TXV-001", "score": 0.5401049852371216, "sibling_score": 0.5401049852371216, "answer_score": null, "sibling_qid": "KOC-2025-12-1085-Q006", "sibling_text": "tev types", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Types of expansion valve", "cross_family": false }, { "answer_id": "TC-CONST-001", "score": 0.5088029503822327, "sibling_score": 0.5088029503822327, "answer_score": null, "sibling_qid": "MUM-2025-12-1227-Q006", "sibling_text": "types of t c", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "Turbocharger types, series names, and ME/AE arrangements", "cross_family": true }, { "answer_id": "TC-CS-P01-004", "score": 0.468065083026886, "sibling_score": 0.468065083026886, "answer_score": null, "sibling_qid": "KOC-2024-10-0929-Q008", "sibling_text": "t c advancement explain vgt a r ratio", "sibling_family": "Turbocharger", "via": "sibling", "answer_title": "D·Variable geometry turbocharging (VGT / VTA) and the A/R ratio", "cross_family": true } ] }, { "qid": "MUM-2026-09-3982-Q004", "text": "Refrigeration cycle ? how -14°c maintained in cold room ?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Cold Corrosion", "tid": "MUM-2026-09-3982", "tray": "new", "candidates": [ { "answer_id": "REEF-COMP-008", "score": 0.5731953382492065, "sibling_score": 0.5731953382492065, "answer_score": null, "sibling_qid": "MUM-2026-04-2668-Q001", "sibling_text": "refrigeration cycle", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Valves, clearances, oil carry-over, refrigerant-in-oil, frosting, tandem valves, cooling — fault checks", "cross_family": true }, { "answer_id": "REF-CYC-008", "score": 0.5458218455314636, "sibling_score": 0.5458218455314636, "answer_score": null, "sibling_qid": "KOL-2017-03-1280-Q003", "sibling_text": "secondary refrigerant control of temp through this arrangements", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "8. Secondary refrigeration systems, arrangements and advantages", "cross_family": true }, { "answer_id": "TEV-TXV-008", "score": 0.5429003238677979, "sibling_score": 0.5429003238677979, "answer_score": null, "sibling_qid": "KOL-2022-01-3505-Q004", "sibling_text": "refrigeration expalined me about tev than ask provision taken in meat room now how temperature maintained", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Maintaining different room temperatures off one plant", "cross_family": true } ] }, { "qid": "MUM-2026-09-3982-Q008", "text": "Types of pump ?", "family": "Cargo Ops - Tankers", "subtopic": "Cargo Pump (Framo / Eductor)", "tid": "MUM-2026-09-3982", "tray": "review", "candidates": [ { "answer_id": "PCD-P01-02", "score": 0.7273255586624146, "sibling_score": 0.7273255586624146, "answer_score": 0.584541380405426, "sibling_qid": "MUM-2026-09-3924-Q010", "sibling_text": "types of pump", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Types and classification of pumps on board — and which pump for which duty", "cross_family": true }, { "answer_id": "CPFE-583-001", "score": 0.72166907787323, "sibling_score": 0.72166907787323, "answer_score": null, "sibling_qid": "MUM-2025-11-2474-Q004", "sibling_text": "framo pump type", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "The Framo system — what it is, how it works, and the driving mechanism", "cross_family": false }, { "answer_id": "PCD-P05-03", "score": 0.6790995597839355, "sibling_score": 0.6790995597839355, "answer_score": null, "sibling_qid": "MUM-2026-02-1259-Q003", "sibling_text": "gear pump types", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Gear pump — construction, working, backlash, tooth profile, safety valve, why not for sea water", "cross_family": true } ] }, { "qid": "MUM-2026-09-3982-Q009", "text": "Cavity pump ?", "family": "Cargo Ops - Tankers", "subtopic": "Cargo Pump (Framo / Eductor)", "tid": "MUM-2026-09-3982", "tray": "new", "candidates": [ { "answer_id": "PCP-BF01-001", "score": 0.6357237696647644, "sibling_score": 0.6357237696647644, "answer_score": 0.4900708496570587, "sibling_qid": "KOL-2025-01-1967-Q005", "sibling_text": "progressive cavity pump working", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "What is a progressive cavity pump — construction and working", "cross_family": true }, { "answer_id": "CPFE-583-001", "score": 0.6159044504165649, "sibling_score": 0.6159044504165649, "answer_score": null, "sibling_qid": "KOC-2025-03-0931-Q015", "sibling_text": "framo pump working internal", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "The Framo system — what it is, how it works, and the driving mechanism", "cross_family": false }, { "answer_id": "COPT-BF043-002", "score": 0.5994471907615662, "sibling_score": 0.5994471907615662, "answer_score": null, "sibling_qid": "CHE-2025-08-0049-Q003", "sibling_text": "why copt using compare to electric pump", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "2. Why a steam turbine (COPT) instead of an electric cargo pump", "cross_family": false } ] }, { "qid": "MUM-2026-09-3982-Q010", "text": "Heat treatment ? annealing ? normalising ? ", "family": "NDT & Material Testing", "subtopic": "Heat Treatment", "tid": "MUM-2026-09-3982", "tray": "review", "candidates": [ { "answer_id": "HT-A-002", "score": 0.7681869864463806, "sibling_score": 0.7681869864463806, "answer_score": 0.5285366415977478, "sibling_qid": "MUM-2025-12-2507-Q002", "sibling_text": "anealling normalising", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Annealing: process, cooling control, and the reused copper washer", "cross_family": false }, { "answer_id": "HEAT-TRT-C-002", "score": 0.6962444186210632, "sibling_score": 0.6962444186210632, "answer_score": 0.42413891553878785, "sibling_qid": "MUM-2023-09-2193-Q009", "sibling_text": "annealing normalizing induction hardening and where used on board and then result coc", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Induction hardening and flame hardening — principle and use", "cross_family": false }, { "answer_id": "HEAT-TRT-C-001", "score": 0.6791628003120422, "sibling_score": 0.6791628003120422, "answer_score": null, "sibling_qid": "KOL-2017-08-3082-Q003", "sibling_text": "anealing tempting normalizing nitriding where done in engine room and reason for doing so", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Nitriding — process, gas and where it is used on board", "cross_family": false } ] }, { "qid": "MUM-2026-09-3982-Q011", "text": "Why washers are used ?", "family": "Workshop & Welding", "subtopic": "Workshop Tools / Grinder Safety", "tid": "MUM-2026-09-3982", "tray": "new", "candidates": [ { "answer_id": "GKT-MAT-005", "score": 0.5257220268249512, "sibling_score": 0.5257220268249512, "answer_score": 0.39475005120038986, "sibling_qid": "KOL-2026-04-3944-Q001", "sibling_text": "copper washer reuse", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Reusing copper washers onboard", "cross_family": false }, { "answer_id": "WTGS-325-008", "score": 0.5234774947166443, "sibling_score": 0.5234774947166443, "answer_score": 0.4181826591491699, "sibling_qid": "KOC-2025-03-2061-Q007", "sibling_text": "types of washers you have come across i had missed out spherical washer explained that spring washer normal washer self locking washer diff material washer copper ss", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Types of washers and their applications", "cross_family": false }, { "answer_id": "FB-COUP-001", "score": 0.41732147336006165, "sibling_score": 0.41732147336006165, "answer_score": null, "sibling_qid": "MUM-2026-06-3618-Q009", "sibling_text": "fitted bolts why used", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What fitted bolts are, what they do, and where they sit onboard", "cross_family": true } ] }, { "qid": "MUM-2026-09-3982-Q013", "text": "1 bolt n nut is getting loosen everytime you tighten in a flange of 8 bolt and nut, how will you prevent it ?", "family": "Workshop & Welding", "subtopic": "Nut-Bolt Loosening / Locking Arrangements", "tid": "MUM-2026-09-3982", "tray": "review", "candidates": [ { "answer_id": "TBR-TT-P02-002", "score": 0.6853634715080261, "sibling_score": 0.6853634715080261, "answer_score": null, "sibling_qid": "MUM-2026-04-2670-Q003", "sibling_text": "nut bolt lossening frequently reasons what to do to prevent", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Checking tie rod tightness / slackness — stopped and running", "cross_family": false }, { "answer_id": "FB-COUP-002", "score": 0.5704818964004517, "sibling_score": 0.5704818964004517, "answer_score": null, "sibling_qid": "MUM-2026-03-1287-Q008", "sibling_text": "interference fit bolts", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Interference fit and shrink fit — the principle and the difference", "cross_family": true }, { "answer_id": "FB-COUP-001", "score": 0.5683691501617432, "sibling_score": 0.5683691501617432, "answer_score": null, "sibling_qid": "MUM-2026-09-3863-Q008", "sibling_text": "bolt getting loose how will you do and where else we use lock nut on ship", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What fitted bolts are, what they do, and where they sit onboard", "cross_family": true } ] }, { "qid": "MUM-2026-09-3982-Q014", "text": "Where n which maintenance will you use locking nut technique ?", "family": "SOLAS - Fire Safety", "subtopic": "CO2 System", "tid": "MUM-2026-09-3982", "tray": "new", "candidates": [ { "answer_id": "FB-COUP-001", "score": 0.5894197821617126, "sibling_score": 0.5894197821617126, "answer_score": null, "sibling_qid": "MUM-2026-09-3863-Q008", "sibling_text": "bolt getting loose how will you do and where else we use lock nut on ship", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What fitted bolts are, what they do, and where they sit onboard", "cross_family": true }, { "answer_id": "METAL-LOCK-002", "score": 0.5501511693000793, "sibling_score": 0.5501511693000793, "answer_score": 0.41096626371145245, "sibling_qid": "MUM-2024-05-2763-Q001", "sibling_text": "methods of cold repairs in engine room explain metal locking", "sibling_family": "Workshop & Welding", "via": "sibling", "answer_title": "Metal locking procedure: pockets, keys, stitching pins", "cross_family": true }, { "answer_id": "ANCHR-B-004", "score": 0.5385771989822388, "sibling_score": 0.5385771989822388, "answer_score": null, "sibling_qid": "MUM-2026-05-3080-Q004", "sibling_text": "maintenance of chain locker", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Chain locker, spurling pipe & bitter-end securing", "cross_family": true } ] }, { "qid": "MUM-2026-09-3983-Q001", "text": "Type of ship ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-09-3983", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.837036669254303, "sibling_score": 0.837036669254303, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8018087148666382, "sibling_score": 0.8018087148666382, "answer_score": 0.5473707109689713, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.8005447387695312, "sibling_score": 0.8005447387695312, "answer_score": 0.5217237085103988, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2026-09-3983-Q006", "text": "IHM code ?", "family": "Other Conventions", "subtopic": "Hong Kong Convention / IHM", "tid": "MUM-2026-09-3983", "tray": "new", "candidates": [ { "answer_id": "HKC-IHM-B-001", "score": 0.6414844393730164, "sibling_score": 0.6414844393730164, "answer_score": null, "sibling_qid": "KOC-2024-03-0317-Q007", "sibling_text": "what is ihm", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is the IHM — its parts, categories and contents?", "cross_family": false }, { "answer_id": "ISM-ELEM-002", "score": 0.5971176624298096, "sibling_score": 0.5971176624298096, "answer_score": 0.33353222012519834, "sibling_qid": "MUM-2026-06-3653-Q001", "sibling_text": "ism code", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the ISM Code?", "cross_family": true }, { "answer_id": "IGC-IGF-002", "score": 0.5774680972099304, "sibling_score": 0.5774680972099304, "answer_score": null, "sibling_qid": "KOC-2022-09-0091-Q002", "sibling_text": "igf code", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "IGF Code — scope, ships and fuels it applies to", "cross_family": false } ] }, { "qid": "MUM-2026-09-3983-Q007", "text": "Entries in IHM ?", "family": "Other Conventions", "subtopic": "Hong Kong Convention / IHM", "tid": "MUM-2026-09-3983", "tray": "new", "candidates": [ { "answer_id": "HKC-IHM-B-001", "score": 0.6066675186157227, "sibling_score": 0.6066675186157227, "answer_score": 0.26635385155677793, "sibling_qid": "MUM-2024-12-0232-Q001", "sibling_text": "contents of ihm", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is the IHM — its parts, categories and contents?", "cross_family": false }, { "answer_id": "HKC-IHM-B-002", "score": 0.5182240009307861, "sibling_score": 0.5182240009307861, "answer_score": 0.2757456049323082, "sibling_qid": "KOL-2025-08-1013-Q007", "sibling_text": "ihm certificate details", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What surveys, certificates and documents go with the IHM and the Hong Kong Convention?", "cross_family": false }, { "answer_id": "HKC-IHM-B-003", "score": 0.4316888451576233, "sibling_score": 0.4316888451576233, "answer_score": null, "sibling_qid": "KOC-2021-10-0031-Q003", "sibling_text": "green passport and ihm", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "How are the Green Passport and the IHM related?", "cross_family": false } ] }, { "qid": "MUM-2026-09-3983-Q012", "text": "Acb overhaul and removal procedure. ?", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "MUM-2026-09-3983", "tray": "new", "candidates": [ { "answer_id": "CB-ACBVCBSF6-E-001", "score": 0.5817816853523254, "sibling_score": 0.5817816853523254, "answer_score": null, "sibling_qid": "MUM-2026-02-1963-Q007", "sibling_text": "types of acb acb removal complete process", "sibling_family": "", "via": "sibling", "answer_title": "What are the common types of circuit breakers used onboard and where are ACB, MCB, MCCB, VCB and SF6 breakers applied?", "cross_family": false }, { "answer_id": "CBKR-D-ISORACK-001", "score": 0.5388538837432861, "sibling_score": 0.5388538837432861, "answer_score": null, "sibling_qid": "MUM-2026-03-2012-Q009", "sibling_text": "how will you remove acb", "sibling_family": "", "via": "sibling", "answer_title": "How do you safely isolate, rack out, withdraw and prove dead an ACB/VCB before work?", "cross_family": false }, { "answer_id": "CYL-LINER-P03-006", "score": 0.5211521983146667, "sibling_score": 0.5211521983146667, "answer_score": null, "sibling_qid": "KOL-2017-04-1289-Q008", "sibling_text": "removing old liner procedure of main engine and checks br fitting new liner", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Fitting a new cylinder liner — checks and precautions during renewal and installation", "cross_family": false } ] }, { "qid": "MUM-2026-09-3983-Q016", "text": "Hv and lv ?", "family": "", "subtopic": "", "tid": "MUM-2026-09-3983", "tray": "new", "candidates": [ { "answer_id": "T038-P01-003", "score": 0.6318485736846924, "sibling_score": 0.6318485736846924, "answer_score": 0.3217320293188095, "sibling_qid": "MUM-2026-06-3614-Q006", "sibling_text": "hv lv system", "sibling_family": "Electrical - High Voltage", "via": "sibling", "answer_title": "HV vs LV onboard — systems, equipment and motor terminal boxes", "cross_family": false }, { "answer_id": "HV-SYS-P02-001", "score": 0.5776702761650085, "sibling_score": 0.5776702761650085, "answer_score": null, "sibling_qid": "CHE-2026-04-0151-Q014", "sibling_text": "advantage of hv over lv", "sibling_family": "", "via": "sibling", "answer_title": "Why high voltage is used onboard ships", "cross_family": false }, { "answer_id": "HV-SYS-P03-001", "score": 0.557510495185852, "sibling_score": 0.557510495185852, "answer_score": null, "sibling_qid": "KOC-2024-07-1374-Q004", "sibling_text": "hv lv advantage and disadvantage", "sibling_family": "", "via": "sibling", "answer_title": "What are the advantages and disadvantages of a high-voltage ship electrical system?", "cross_family": false } ] }, { "qid": "MUM-2026-09-3983-Q017", "text": "And few more ..", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Tie Rod / Tie Bolt", "tid": "MUM-2026-09-3983", "tray": "new", "candidates": [ { "answer_id": "WMAT-170-010", "score": 0.6477429866790771, "sibling_score": 0.6477429866790771, "answer_score": null, "sibling_qid": "CHE-2026-05-0597-Q012", "sibling_text": "few more questions", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Bearing types, material selection and properties: where each is used", "cross_family": false }, { "answer_id": "IR-TEST-B-002", "score": 0.5772078633308411, "sibling_score": 0.5772078633308411, "answer_score": null, "sibling_qid": "MUM-2025-10-1728-Q007", "sibling_text": "i r test and few more", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "IR test of a low-voltage motor — the standard megger procedure", "cross_family": true }, { "answer_id": "IRT-A-006", "score": 0.5107944011688232, "sibling_score": 0.5107944011688232, "answer_score": null, "sibling_qid": "MUM-2025-10-1720-Q006", "sibling_text": "and one more about megger and hv something don t remember", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "High-voltage IR test - procedure, HV vs LV megger, safety", "cross_family": true } ] }, { "qid": "MUM-2026-09-3984-Q001", "text": "Function-3 SAFETY GME & Company Ship sailed - LPG.", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-09-3984", "tray": "new", "candidates": [ { "answer_id": "GAS-DET-001", "score": 0.6015697121620178, "sibling_score": 0.6015697121620178, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q007", "sibling_text": "gas detection point in lpg ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Fixed gas detection system on a gas carrier (cargo area / \"pump room\")", "cross_family": false }, { "answer_id": "IGC-GAS-010", "score": 0.5829534530639648, "sibling_score": 0.5829534530639648, "answer_score": null, "sibling_qid": "MUM-2023-07-2738-Q001", "sibling_text": "safety lng ship", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Cargo-handling deck safeties and precautions (loading and discharge)", "cross_family": true }, { "answer_id": "LPG-LNG-009", "score": 0.5628913044929504, "sibling_score": 0.5628913044929504, "answer_score": null, "sibling_qid": "CHE-2026-04-0164-Q001", "sibling_text": "type of ship sailed lpg carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Gas-carrier fundamentals and ship-specific traps", "cross_family": false } ] }, { "qid": "MUM-2026-09-3984-Q003", "text": "Shell expansion plan. Cross questions about material & material strength, grade of steel used.", "family": "Ship Construction & Stability", "subtopic": "Shell Expansion Plan", "tid": "MUM-2026-09-3984", "tray": "new", "candidates": [ { "answer_id": "SHELL-PLT-A-001", "score": 0.6354182958602905, "sibling_score": 0.6354182958602905, "answer_score": 0.43683783411979676, "sibling_qid": "KOC-2021-12-2028-Q014", "sibling_text": "shell expansion plan in details where will u find the material used in steel plating of the hull", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "The shell expansion plan, and how you identify a plate", "cross_family": true }, { "answer_id": "STEEL-GR-002", "score": 0.6271384358406067, "sibling_score": 0.6271384358406067, "answer_score": null, "sibling_qid": "MUM-2026-06-3458-Q010", "sibling_text": "grade of steel used for ship construction and cross", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Mild steel — composition, use, and how it differs from cast iron", "cross_family": false }, { "answer_id": "SHELL-PLT-B-001", "score": 0.6142133474349976, "sibling_score": 0.6142133474349976, "answer_score": null, "sibling_qid": "MUM-2026-05-3352-Q012", "sibling_text": "which steel grade you ll use for sheer strake", "sibling_family": "SOLAS", "via": "sibling", "answer_title": "Sheer strake — location, why strengthened, deck-edge / gunwale connection", "cross_family": true } ] }, { "qid": "MUM-2026-09-3984-Q004", "text": "BLEVE and how to prevent it from happening.", "family": "Cargo Ops - Gas Carriers", "subtopic": "BLEVE / Boil-Off", "tid": "MUM-2026-09-3984", "tray": "new", "candidates": [ { "answer_id": "BLEVE-BOG-001", "score": 0.5334078073501587, "sibling_score": 0.5334078073501587, "answer_score": 0.3178339958190918, "sibling_qid": "CHE-2025-10-0516-Q007", "sibling_text": "bleve", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "What is BLEVE and how is it explained on gas carriers?", "cross_family": false }, { "answer_id": "BLEVE-BOG-002", "score": 0.3793772920966148, "sibling_score": null, "answer_score": 0.3793772920966148, "sibling_qid": "", "sibling_text": "how is bleve risk detected prevented or protected against prevention is pressure discipline plus cooling stay below marvs and keep the shell cool the relief valve is the last line not the control method filling limit is separate from marvs do not load into a liquid full condition a warming liquid full tank can rupture hydrostatically before the relief valve can protect it", "sibling_family": "", "via": "answer_title", "answer_title": "How is BLEVE risk detected, prevented or protected against?", "cross_family": false }, { "answer_id": "BBF-621-001", "score": 0.32912141680717466, "sibling_score": null, "answer_score": 0.32912141680717466, "sibling_qid": "", "sibling_text": "what is boiler backfire blowback explain the furnace event the reasons and how you prevent it one event two names backfire blowback a fireside furnace explosion it endangers anyone at the boiler front and can distort the casing the mechanism is always the same a combustible fuel air charge accumulates in the furnace then meets an ignition source and deflagrates", "sibling_family": "", "via": "answer_title", "answer_title": "What is boiler backfire / blowback? Explain the furnace event, the reasons, and how you prevent it.", "cross_family": false } ] }, { "qid": "MUM-2026-09-3984-Q006", "text": "what is the height of mast riser basically he wants to know why the height is some much- to prevent lpg gas to suck through the AC system. Electrical:-", "family": "Cargo Ops - Tankers", "subtopic": "Mast Riser / Deck Seal / P/V Valve", "tid": "MUM-2026-09-3984", "tray": "new", "candidates": [ { "answer_id": "MR-DS-PV-B-004", "score": 0.6462236046791077, "sibling_score": 0.6462236046791077, "answer_score": 0.5240040421485901, "sibling_qid": "MUM-2026-02-2918-Q009", "sibling_text": "mast riser height regulation", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "4. Purpose, arrangement, and safety function of the mast riser / high-velocity vent", "cross_family": false }, { "answer_id": "MRF-003", "score": 0.5746045708656311, "sibling_score": 0.5746045708656311, "answer_score": 0.4941367834806442, "sibling_qid": "MUM-2022-08-0042-Q002", "sibling_text": "vent mast riser fire fighting arrangment", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "What is the function of the mast riser, what regulation applies, and what fire-fighting arrangement is provided for it?", "cross_family": true }, { "answer_id": "COT-P02-01", "score": 0.5667100548744202, "sibling_score": 0.5667100548744202, "answer_score": null, "sibling_qid": "KOC-2022-03-0069-Q002", "sibling_text": "draw ig explain why deck seal pv breaker pv valve use and values mast riser function", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Draw and explain the complete tanker inert-gas system from gas production to the cargo tanks, identifying the main plant, control and deck components.", "cross_family": false } ] }, { "qid": "MUM-2026-09-3984-Q007", "text": "What type of Electrical system on board on your last ship. HV or LV and specification", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-09-3984", "tray": "review", "candidates": [ { "answer_id": "T038-P01-002", "score": 0.7222601175308228, "sibling_score": 0.7222601175308228, "answer_score": 0.6089347541332245, "sibling_qid": "CHE-2026-04-0374-Q001", "sibling_text": "type of ship sailed high or low voltage lv ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "HV system onboard — layout, components, applications, earthing & protection", "cross_family": false }, { "answer_id": "T038-P01-001", "score": 0.6791834831237793, "sibling_score": 0.6791834831237793, "answer_score": 0.5596024572849273, "sibling_qid": "KOL-2025-08-2820-Q001", "sibling_text": "hv voltage of your ship", "sibling_family": "", "via": "sibling", "answer_title": "What is a marine high-voltage system, and what counts as HV onboard?", "cross_family": false }, { "answer_id": "ALT-GEN-P02-001", "score": 0.6589106321334839, "sibling_score": 0.6589106321334839, "answer_score": null, "sibling_qid": "KOC-2026-01-1688-Q002", "sibling_text": "ship electrical specifications", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Alternator/generator specifications, ratings and ship electrical supply details", "cross_family": true } ] }, { "qid": "MUM-2026-09-3984-Q013", "text": "Steering gear motor insulation class. And few more can't remember", "family": "Electrical - Motors & Starters", "subtopic": "Insulation Class", "tid": "MUM-2026-09-3984", "tray": "review", "candidates": [ { "answer_id": "INS-CLASS-001", "score": 0.878897488117218, "sibling_score": 0.878897488117218, "answer_score": 0.5186507880687713, "sibling_qid": "MUM-2026-09-3980-Q012", "sibling_text": "insulation class steering motor insulation class", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What is meant by insulation class?", "cross_family": false }, { "answer_id": "IP-ENCL-003", "score": 0.7251039147377014, "sibling_score": 0.7251039147377014, "answer_score": null, "sibling_qid": "KOC-2023-12-1314-Q010", "sibling_text": "motor enclosures insulation class", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Types of motor enclosure and where used on ships", "cross_family": false }, { "answer_id": "SGM-ELEC-002", "score": 0.722037136554718, "sibling_score": 0.722037136554718, "answer_score": 0.5543593466281891, "sibling_qid": "MUM-2025-10-1709-Q005", "sibling_text": "steering gear motor type safeties", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What type of motor is the steering gear motor, how does it differ from other engine-room motors, and how do you order one?", "cross_family": false } ] }, { "qid": "MUM-2026-09-3985-Q003", "text": "ALTERNATOR SUDDENLY GET OVERLOAD REASONS ?", "family": "Electrical - Motors & Starters", "subtopic": "Motor Not Starting", "tid": "MUM-2026-09-3985", "tray": "review", "candidates": [ { "answer_id": "MNS-007", "score": 0.7082823514938354, "sibling_score": 0.7082823514938354, "answer_score": 0.5359364151954651, "sibling_qid": "MUM-2026-09-3996-Q005", "sibling_text": "motor overloading reason", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Reasons a motor goes on overload", "cross_family": false }, { "answer_id": "LS-IMB-A-001", "score": 0.6880351305007935, "sibling_score": 0.6880351305007935, "answer_score": null, "sibling_qid": "MUM-2026-02-1944-Q002", "sibling_text": "2 alternators running in parallel but one drawing more load reason", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "1. Two paralleled generators sharing unequal load — cause and correction", "cross_family": true }, { "answer_id": "OC-UV-TRIP-006", "score": 0.6802468299865723, "sibling_score": 0.6802468299865723, "answer_score": null, "sibling_qid": "MUM-2026-06-3374-Q004", "sibling_text": "alternator started and taken on load and it trips", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Trip settings and combined overcurrent / undervoltage protection — alternator context", "cross_family": true } ] }, { "qid": "MUM-2026-09-3986-Q003", "text": "OC and SC test? why ?how done?", "family": "NDT & Material Testing", "subtopic": "NDT Methods (MPI/DPT/UT/RT)", "tid": "MUM-2026-09-3986", "tray": "new", "candidates": [ { "answer_id": "XFMR-THY-D-001", "score": 0.5166027545928955, "sibling_score": 0.5166027545928955, "answer_score": null, "sibling_qid": "KOL-2025-11-2901-Q003", "sibling_text": "transformers oc and sc tests", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Transformer — principle and working", "cross_family": true }, { "answer_id": "CB033-C-001", "score": 0.43901586532592773, "sibling_score": 0.43901586532592773, "answer_score": null, "sibling_qid": "MUM-2026-04-2102-Q001", "sibling_text": "oct how to test", "sibling_family": "", "via": "sibling", "answer_title": "How do you carry out maintenance and testing on an ACB / main circuit breaker?", "cross_family": false }, { "answer_id": "OCR-185-001", "score": 0.36124998331069946, "sibling_score": 0.36124998331069946, "answer_score": null, "sibling_qid": "KOL-2022-03-2549-Q006", "sibling_text": "oc relay how to test", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Testing an overcurrent relay / overcurrent trip onboard", "cross_family": true } ] }, { "qid": "MUM-2026-09-3987-Q001", "text": "LNG Carrier load carrying capacity ?", "family": "Cargo Ops - Gas Carriers", "subtopic": "Cargo Tank Construction", "tid": "MUM-2026-09-3987", "tray": "review", "candidates": [ { "answer_id": "GC-TANK-004", "score": 0.6809784770011902, "sibling_score": 0.6809784770011902, "answer_score": null, "sibling_qid": "KOL-2025-04-0931-Q007", "sibling_text": "cargo tank construction lpg carrier int", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Gas-carrier cargo tank construction: materials, insulation, fixing and tank safeties", "cross_family": false }, { "answer_id": "LPG-LNG-006", "score": 0.6576139330863953, "sibling_score": 0.6576139330863953, "answer_score": null, "sibling_qid": "KOC-2022-10-0103-Q008", "sibling_text": "4 in lng carrier whether ig is used and why if no then how lng is loaded i said i have not been sailed in lng so i m not aware of those he said no problem u might have study in pre sea", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Nitrogen generator, dry IG, and padding on gas carriers", "cross_family": false }, { "answer_id": "BLEVE-BOG-004", "score": 0.6499530076980591, "sibling_score": 0.6499530076980591, "answer_score": 0.4903211802244186, "sibling_qid": "KOC-2021-07-0006-Q001", "sibling_text": "lng carrier boil off how much tank pressure control how done", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "How are LNG boil-off, tank pressure and cargo temperature controlled?", "cross_family": false } ] }, { "qid": "MUM-2026-09-3987-Q003", "text": "LNG Carrier If leakage occurs what to do ?", "family": "Cargo Ops - Gas Carriers", "subtopic": "Cargo Tank Construction", "tid": "MUM-2026-09-3987", "tray": "review", "candidates": [ { "answer_id": "IGC-GAS-016", "score": 0.6500938534736633, "sibling_score": 0.6500938534736633, "answer_score": 0.5591460257768631, "sibling_qid": "KOL-2022-07-3555-Q005", "sibling_text": "in lng ships both primary n secondary barrier breached what will be your action", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Emergency action — primary and secondary barrier breach", "cross_family": false }, { "answer_id": "GC-TANK-004", "score": 0.6327833533287048, "sibling_score": 0.6327833533287048, "answer_score": null, "sibling_qid": "MUM-2026-03-0822-Q003", "sibling_text": "containment of lng tanker", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Gas-carrier cargo tank construction: materials, insulation, fixing and tank safeties", "cross_family": false }, { "answer_id": "LPG-LNG-002", "score": 0.6059999465942383, "sibling_score": 0.6059999465942383, "answer_score": null, "sibling_qid": "KOL-2026-02-1166-Q002", "sibling_text": "precautions while carrying out lng bunkering", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "LNG bunkering – preparation and procedure", "cross_family": false } ] }, { "qid": "MUM-2026-09-3987-Q006", "text": "Rudder drop ?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Drop", "tid": "MUM-2026-09-3987", "tray": "new", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.5913048386573792, "sibling_score": 0.5913048386573792, "answer_score": 0.37483488917350766, "sibling_qid": "KOL-2025-01-3742-Q007", "sibling_text": "rudder drop", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "RUD-DROP-003", "score": 0.5488365888595581, "sibling_score": 0.5488365888595581, "answer_score": 0.3397372871637344, "sibling_qid": "CHE-2021-07-0171-Q007", "sibling_text": "rudder drop is more wat actions you take during sailing", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Rudder drop at the limit: the decision", "cross_family": false }, { "answer_id": "PROP-PN-C-002", "score": 0.3084972634911537, "sibling_score": null, "answer_score": 0.3084972634911537, "sibling_qid": "", "sibling_text": "propeller drop measurement and consequences drop aft stern tube bush wear down the propeller weight cantilevers on the aft bush so the shaft sinks as it wears tool the ship s own poker wear down gauge supplied at newbuilding with recorded datum dimensions always use the same tool for comparability", "sibling_family": "", "via": "answer_title", "answer_title": "Propeller drop — measurement and consequences", "cross_family": false } ] }, { "qid": "MUM-2026-09-3988-Q001", "text": "What is sea margin?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "LSA Code", "tid": "MUM-2026-09-3988", "tray": "new", "candidates": [ { "answer_id": "MARGIN-LINE-003", "score": 0.48255839943885803, "sibling_score": 0.48255839943885803, "answer_score": null, "sibling_qid": "KOL-2020-07-0416-Q005", "sibling_text": "margin line deck line where drawn", "sibling_family": "", "via": "sibling", "answer_title": "Margin line vs deck line, freeboard and the Plimsoll marks", "cross_family": false }, { "answer_id": "MARGIN-LINE-001", "score": 0.46070605516433716, "sibling_score": 0.46070605516433716, "answer_score": 0.3833294853568077, "sibling_qid": "KOC-2025-02-0542-Q004", "sibling_text": "explain margin line is it same for all ships", "sibling_family": "", "via": "sibling", "answer_title": "What is the margin line, and what is its purpose?", "cross_family": false }, { "answer_id": "UNCLOS-004", "score": 0.4483344256877899, "sibling_score": 0.4483344256877899, "answer_score": 0.3822302043437958, "sibling_qid": "KOL-2026-03-1198-Q008", "sibling_text": "continental shelf", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is the continental shelf under UNCLOS and what is its range?", "cross_family": true } ] }, { "qid": "MUM-2026-09-3988-Q002", "text": "Function of accumulators ?", "family": "IMO Structure & Conventions", "subtopic": "IMO / Committees / Codes", "tid": "MUM-2026-09-3988", "tray": "new", "candidates": [ { "answer_id": "ALPHA-LUB-B-003", "score": 0.5695624351501465, "sibling_score": 0.5695624351501465, "answer_score": null, "sibling_qid": "KOL-2016-08-1228-Q002", "sibling_text": "alpha lubricator inputs outputs accumulator", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Alpha lubricator — components, accumulator, solenoids and pressures", "cross_family": true }, { "answer_id": "REF-CYC-002", "score": 0.5655614137649536, "sibling_score": 0.5655614137649536, "answer_score": null, "sibling_qid": "KOL-2026-05-4096-Q001", "sibling_text": "accumulator in refer working system", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "2. Refrigeration plant components and their control functions", "cross_family": true }, { "answer_id": "ACCT-583-A-001", "score": 0.5544251203536987, "sibling_score": 0.5544251203536987, "answer_score": null, "sibling_qid": "MUM-2024-11-0966-Q008", "sibling_text": "accumulation test when n how it is done", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Explain the boiler accumulation pressure test — what it is, its purpose, and how it is carried out (including when and at what interval)", "cross_family": true } ] }, { "qid": "MUM-2026-09-3988-Q006", "text": "Types of top bracing, Why? And how does it work?", "family": "2-Stroke - Components (Other)", "subtopic": "Top Bracing", "tid": "MUM-2026-09-3988", "tray": "review", "candidates": [ { "answer_id": "TOP-BRC-003", "score": 0.6807688474655151, "sibling_score": 0.6807688474655151, "answer_score": null, "sibling_qid": "KOC-2026-09-2175-Q008", "sibling_text": "top bracing why types", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "3. Checks, testing, maintenance, overhaul and malfunction", "cross_family": false }, { "answer_id": "TOP-BRC-001", "score": 0.6661747097969055, "sibling_score": 0.6661747097969055, "answer_score": 0.4227995634078979, "sibling_qid": "KOC-2021-07-0920-Q010", "sibling_text": "top bracing function", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "1. What top bracing is, where it is fitted, and why", "cross_family": false }, { "answer_id": "TOP-BRC-002", "score": 0.6612109541893005, "sibling_score": 0.6612109541893005, "answer_score": null, "sibling_qid": "CHE-2026-08-0672-Q008", "sibling_text": "top bracing types and why used", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "2. Types and working — mechanical (friction) and hydraulic", "cross_family": false } ] }, { "qid": "MUM-2026-09-3988-Q008", "text": "Rudder drop. Why and how to measure it?", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Drop", "tid": "MUM-2026-09-3988", "tray": "new", "candidates": [ { "answer_id": "RUD-DROP-001", "score": 0.6189080476760864, "sibling_score": 0.6189080476760864, "answer_score": 0.4454772025346756, "sibling_qid": "KOC-2026-04-0894-Q008", "sibling_text": "what checks at rudder how you measure drop", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "PROP-PN-C-002", "score": 0.3849747970700264, "sibling_score": null, "answer_score": 0.3849747970700264, "sibling_qid": "", "sibling_text": "propeller drop measurement and consequences drop aft stern tube bush wear down the propeller weight cantilevers on the aft bush so the shaft sinks as it wears tool the ship s own poker wear down gauge supplied at newbuilding with recorded datum dimensions always use the same tool for comparability", "sibling_family": "", "via": "answer_title", "answer_title": "Propeller drop — measurement and consequences", "cross_family": false }, { "answer_id": "RUD-DROP-003", "score": 0.3577839627861977, "sibling_score": null, "answer_score": 0.3577839627861977, "sibling_qid": "", "sibling_text": "rudder drop at the limit the decision verify before acting re measure drop jumping crosshead confirm the datum marks and the newbuilding reference and exclude a set up skeg or keel blocks in way of the skeg reaching the limit is a renewal trigger not a monitor at the maker class maximum the worn component is renewed not run on", "sibling_family": "", "via": "answer_title", "answer_title": "Rudder drop at the limit: the decision", "cross_family": false } ] }, { "qid": "MUM-2026-09-3988-Q010", "text": "Stern tube arrangement, types of seals. How to check integrity of new seals fitted ?", "family": "Shafting, Propeller & Rudder", "subtopic": "Stern Tube / Tail Shaft Bearings", "tid": "MUM-2026-09-3988", "tray": "review", "candidates": [ { "answer_id": "STERN-TUBE-P04-002", "score": 0.7577545046806335, "sibling_score": 0.7577545046806335, "answer_score": 0.6067286431789398, "sibling_qid": "KOC-2026-08-2163-Q014", "sibling_text": "in drydock you have replaced stern tube seals now do the stern tube integrity test", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "Stern tube and seal integrity tests after survey and while underway", "cross_family": false }, { "answer_id": "STT-BRG-004", "score": 0.7404652237892151, "sibling_score": 0.7404652237892151, "answer_score": null, "sibling_qid": "KOC-2025-12-1078-Q008", "sibling_text": "stern tube fwd seal arrangement how seal is secured how liner is secured", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "3. Chrome liner and seal securing — fitting, retention and repair", "cross_family": false }, { "answer_id": "STT-BRG-005", "score": 0.7245306372642517, "sibling_score": 0.7245306372642517, "answer_score": null, "sibling_qid": "KOL-2023-07-3623-Q003", "sibling_text": "how will you check stern tube seals are leaking integrity test", "sibling_family": "Shafting, Propeller & Rudder", "via": "sibling", "answer_title": "4. Seal leakage — detection, water-ingress diagnosis and integrity test", "cross_family": false } ] }, { "qid": "MUM-2026-09-3989-Q001", "text": "Type of ships ? Status of function oral & written ?", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-09-3989", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8007051348686218, "sibling_score": 0.8007051348686218, "answer_score": null, "sibling_qid": "KOC-2026-08-2106-Q001", "sibling_text": "status of written oral company type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.6949042677879333, "sibling_score": 0.6949042677879333, "answer_score": null, "sibling_qid": "MUM-2026-05-3139-Q001", "sibling_text": "status of oral and written type of ship sailed container nomenclature of main and auxiliary engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.6757821440696716, "sibling_score": 0.6757821440696716, "answer_score": null, "sibling_qid": "MUM-2026-06-3459-Q001", "sibling_text": "type of ship sail and status of other function", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false } ] }, { "qid": "MUM-2026-09-3989-Q002", "text": "What does AFRA stands for in AFRAMAX ?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Engine Nomenclature", "tid": "MUM-2026-09-3989", "tray": "new", "candidates": [ { "answer_id": "TKR-TYPE-003", "score": 0.5020151138305664, "sibling_score": 0.5020151138305664, "answer_score": 0.3869362264871597, "sibling_qid": "KOL-2017-03-0070-Q001", "sibling_text": "what is aframax crude tankers latest amendments tank ventilation amendments", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "3. Tanker size classes — Panamax, Aframax, Suezmax, VLCC, ULCC", "cross_family": true }, { "answer_id": "TONN-008", "score": 0.4700300693511963, "sibling_score": 0.4700300693511963, "answer_score": null, "sibling_qid": "KOL-2018-03-3962-Q002", "sibling_text": "difference between vlcc ulcc panamax aframax general difference on tonnage", "sibling_family": "", "via": "sibling", "answer_title": "Ship / Tanker Size Classes by Deadweight", "cross_family": false }, { "answer_id": "SFOC-001", "score": 0.46241870522499084, "sibling_score": 0.46241870522499084, "answer_score": null, "sibling_qid": "KOL-2025-04-3776-Q005", "sibling_text": "specific fuel oil consumption", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "What is SFOC? Definition, formula, unit — and how you get the corrected density", "cross_family": false } ] }, { "qid": "MUM-2026-09-3989-Q004", "text": "⁠MLC titles ?", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2026-09-3989", "tray": "new", "candidates": [ { "answer_id": "MLC-WRH-B-001", "score": 0.6386595964431763, "sibling_score": 0.6386595964431763, "answer_score": 0.26856343299150465, "sibling_qid": "KOC-2026-05-2135-Q011", "sibling_text": "mlc titles explain title 1 explain dmlc part 1 and 2", "sibling_family": "MLC", "via": "sibling", "answer_title": "The DMLC — Part I and Part II: contents, who prepares, who issues", "cross_family": false }, { "answer_id": "MLC-WRH-B-006", "score": 0.5390518307685852, "sibling_score": 0.5390518307685852, "answer_score": null, "sibling_qid": "MUM-2026-06-3645-Q001", "sibling_text": "certificates of mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC certificates and the documents carried on board", "cross_family": false }, { "answer_id": "ISMNC-002", "score": 0.46814727783203125, "sibling_score": 0.46814727783203125, "answer_score": null, "sibling_qid": "MUM-2026-01-0685-Q005", "sibling_text": "mlc mnc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a major non-conformity under the ISM Code? Give the definition and name some.", "cross_family": true } ] }, { "qid": "MUM-2026-09-3989-Q005", "text": "MLC latest amendments ?", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2026-09-3989", "tray": "new", "candidates": [ { "answer_id": "COT-P02-10", "score": 0.5321338176727295, "sibling_score": 0.5321338176727295, "answer_score": null, "sibling_qid": "MUM-2026-06-3653-Q004", "sibling_text": "seemp latest amendment", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "State and explain the latest statutory amendments affecting tanker inert-gas systems, including applicability and practical changes on board.", "cross_family": true }, { "answer_id": "IMO-CODES-P02-001", "score": 0.5072243809700012, "sibling_score": 0.5072243809700012, "answer_score": null, "sibling_qid": "KOC-2025-01-0515-Q002", "sibling_text": "msc108 new ammendments", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "IMO instruments: convention, code, protocol, amendment, regulation, resolution and rule", "cross_family": true }, { "answer_id": "BC-IMSBC-005", "score": 0.4992682635784149, "sibling_score": 0.4992682635784149, "answer_score": 0.3638504892587662, "sibling_qid": "KOL-2025-08-1023-Q004", "sibling_text": "imsbc latest amendment", "sibling_family": "Cargo Ops - Bulk Carriers", "via": "sibling", "answer_title": "5. Latest IMSBC Code amendments", "cross_family": true } ] }, { "qid": "MUM-2026-09-3989-Q006", "text": "Manila convention ?", "family": "STCW", "subtopic": "", "tid": "MUM-2026-09-3989", "tray": "new", "candidates": [ { "answer_id": "STCW-MAN-010", "score": 0.5358220338821411, "sibling_score": 0.5358220338821411, "answer_score": 0.32421273887157437, "sibling_qid": "MUM-2025-09-0481-Q022", "sibling_text": "manila ammendment latest", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What are the STCW 2010 Manila amendments, and what changed compared with STCW 1995?", "cross_family": true }, { "answer_id": "IMO-CODES-P02-001", "score": 0.5106772780418396, "sibling_score": 0.5106772780418396, "answer_score": null, "sibling_qid": "KOC-2023-11-0246-Q001", "sibling_text": "convention", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "IMO instruments: convention, code, protocol, amendment, regulation, resolution and rule", "cross_family": true }, { "answer_id": "LL-CONV-P04-002", "score": 0.5048426985740662, "sibling_score": 0.5048426985740662, "answer_score": null, "sibling_qid": "KOL-2020-01-0380-Q002", "sibling_text": "load survey preparations as a 2 e 3 manila amendments", "sibling_family": "", "via": "sibling", "answer_title": "Load Line Convention, certificates, assigning authority and detention risk", "cross_family": false } ] }, { "qid": "MUM-2026-09-3990-Q003", "text": "Air gap how much? how measured?", "family": "Electrical - Motors & Starters", "subtopic": "Air Gap", "tid": "MUM-2026-09-3990", "tray": "new", "candidates": [ { "answer_id": "AIR-GAP-003", "score": 0.6484825611114502, "sibling_score": 0.6484825611114502, "answer_score": null, "sibling_qid": "CHE-2026-09-3918-Q007", "sibling_text": "air gap value", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "AG-3 — Effects, causes, indications and correction: high, low, uneven, contaminated gap", "cross_family": false }, { "answer_id": "AIR-GAP-002", "score": 0.6278133988380432, "sibling_score": 0.6278133988380432, "answer_score": 0.38791905641555785, "sibling_qid": "KOC-2026-01-1685-Q012", "sibling_text": "how to measure air gap", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "AG-2 — Checking and measuring the air gap", "cross_family": false }, { "answer_id": "AIR-GAP-001", "score": 0.6249522566795349, "sibling_score": 0.6249522566795349, "answer_score": 0.37871316373348235, "sibling_qid": "CHE-2026-09-3918-Q008", "sibling_text": "how much air gap is accepted", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "AG-1 — The air gap: what it is and why it matters", "cross_family": false } ] }, { "qid": "MUM-2026-09-3990-Q007", "text": "insulation test why? how? what temperature? how temperature affected?", "family": "Electrical - Motors & Starters", "subtopic": "Polarization Index", "tid": "MUM-2026-09-3990", "tray": "review", "candidates": [ { "answer_id": "INS-CLASS-002", "score": 0.712095320224762, "sibling_score": 0.712095320224762, "answer_score": null, "sibling_qid": "KOL-2019-10-2332-Q001", "sibling_text": "insulation class with temperature and all details", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What are the classes of insulation, their temperature limits and their materials?", "cross_family": false }, { "answer_id": "IRT-A-002", "score": 0.673761785030365, "sibling_score": 0.673761785030365, "answer_score": null, "sibling_qid": "MUM-2026-07-3747-Q009", "sibling_text": "how to test insulation", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Taking an IR test on a motor - isolation and procedure", "cross_family": false }, { "answer_id": "INS-CLASS-001", "score": 0.6704616546630859, "sibling_score": 0.6704616546630859, "answer_score": null, "sibling_qid": "MUM-2022-11-1369-Q012", "sibling_text": "what is meant by insulation purpose test explain different types of insulation class", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What is meant by insulation class?", "cross_family": false } ] }, { "qid": "MUM-2026-09-3990-Q011", "text": "IF YOU PUT CLAMPMETER ON 3 WIRE 3PHASE CABLE WHAT READING YOU GET IF CURRENT IN EACH PHASE IS 100 AMPS?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Galvanometer / Multimeter / Clamp Meter", "tid": "MUM-2026-09-3990", "tray": "review", "candidates": [ { "answer_id": "GMCM-583-A-010", "score": 0.7698879837989807, "sibling_score": 0.7698879837989807, "answer_score": 0.6455930083990097, "sibling_qid": "MUM-2026-05-3003-Q001S2", "sibling_text": "resultant current in clamp meter with 100 amps", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "10. The clamp meter on a three-phase supply — what you read clamping one, two or all three conductors of a 100 A system", "cross_family": false }, { "answer_id": "GMCM-583-A-009", "score": 0.6666508316993713, "sibling_score": 0.6666508316993713, "answer_score": 0.4865199148654938, "sibling_qid": "KOL-2018-05-3963-Q005", "sibling_text": "tong clamp meter rao why cant we use ammeter in place of clampmeter for measuring current which part of wire should we connect it and what value shall we get in 3phase winding", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "09. The clamp (tong) meter — working principle, types, and why only a single conductor is clamped", "cross_family": false }, { "answer_id": "GMCM-583-A-011", "score": 0.5184846103191375, "sibling_score": null, "answer_score": 0.5184846103191375, "sibling_qid": "", "sibling_text": "11 using a clamp meter in service what it can measure and where to check on a running motor read at the starter load side of the contactor and overload one core at a time compare all three phases against each other against rated current against the line voltages and against the healthy baseline", "sibling_family": "", "via": "answer_title", "answer_title": "11. Using a clamp meter in service — what it can measure, and where to check on a running motor", "cross_family": false } ] }, { "qid": "MUM-2026-09-3991-Q001", "text": "SOPEP plan ?", "family": "MARPOL - Annex I (Oil)", "subtopic": "SOPEP", "tid": "MUM-2026-09-3991", "tray": "new", "candidates": [ { "answer_id": "SOPEP-001", "score": 0.5099952816963196, "sibling_score": 0.5099952816963196, "answer_score": null, "sibling_qid": "KOC-2023-10-0236-Q007", "sibling_text": "prevention plan associated with annexe 1 in marpol i said sopep he accepted and then asked equivalent plan for annexe 2 nls", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "SOPEP — Definition, Applicability and the Governing Regulation", "cross_family": false }, { "answer_id": "SOPEP-002", "score": 0.47116339206695557, "sibling_score": 0.47116339206695557, "answer_score": 0.2613178551197052, "sibling_qid": "KOC-2024-04-0335-Q001", "sibling_text": "sopep contents", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "SOPEP — Mandatory Contents, Appendices, Locker and Equipment", "cross_family": false }, { "answer_id": "SOPEP-004", "score": 0.4478433132171631, "sibling_score": 0.4478433132171631, "answer_score": 0.35979719609022137, "sibling_qid": "KOL-2018-08-1861-Q016", "sibling_text": "sopep and smepp", "sibling_family": "MARPOL - Annex I (Oil)", "via": "sibling", "answer_title": "SOPEP vs SMPEP and Other Shipboard Plans; Drills", "cross_family": false } ] }, { "qid": "MUM-2026-09-3991-Q003", "text": "Security level, how will decide and if breach what action ?", "family": "ISPS", "subtopic": "ISPS Code / Security Level", "tid": "MUM-2026-09-3991", "tray": "new", "candidates": [ { "answer_id": "ISPS-SL-003", "score": 0.5945723652839661, "sibling_score": 0.5945723652839661, "answer_score": 0.44587805569171907, "sibling_qid": "MUM-2022-08-0033-Q004", "sibling_text": "who decide security level", "sibling_family": "ISPS", "via": "sibling", "answer_title": "Security levels — who sets them, ship vs port, level 2 vs 3", "cross_family": false }, { "answer_id": "ISPS-SL-002", "score": 0.5014882683753967, "sibling_score": 0.5014882683753967, "answer_score": null, "sibling_qid": "MUM-2026-08-3835-Q002", "sibling_text": "isps types of security level", "sibling_family": "ISPS", "via": "sibling", "answer_title": "Elements, contents, functional requirements, training and equipment", "cross_family": false }, { "answer_id": "ISPS-P03-002", "score": 0.46023309230804443, "sibling_score": 0.46023309230804443, "answer_score": null, "sibling_qid": "MUM-2026-03-2931-Q004", "sibling_text": "level of security cso sso ssp", "sibling_family": "ISPS", "via": "sibling", "answer_title": "CSO and SSO: difference, combined duties and relationship", "cross_family": false } ] }, { "qid": "MUM-2026-09-3991-Q004", "text": "SOLAS manual ?", "family": "ISM Code", "subtopic": "Training Junior Engineer", "tid": "MUM-2026-09-3991", "tray": "new", "candidates": [ { "answer_id": "FIRE-P05-01", "score": 0.5597886443138123, "sibling_score": 0.5597886443138123, "answer_score": 0.2986449241638183, "sibling_qid": "MUM-2026-09-3867-Q004", "sibling_text": "solas training manual", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Fire-safety training manual — SOLAS II-2 Reg 15 contents and location", "cross_family": false }, { "answer_id": "PA-MAN-001", "score": 0.542975127696991, "sibling_score": 0.542975127696991, "answer_score": null, "sibling_qid": "MUM-2022-08-0037-Q001", "sibling_text": "pa manual", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What is the P&A Manual (Procedures and Arrangements Manual)?", "cross_family": true }, { "answer_id": "SPAB-330-001", "score": 0.4991685748100281, "sibling_score": 0.4991685748100281, "answer_score": null, "sibling_qid": "KOC-2025-01-0514-Q012", "sibling_text": "solas a and solas b", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "SOLAS Pack A and Pack B in liferafts — what they are and the difference", "cross_family": true } ] }, { "qid": "MUM-2026-09-3992-Q001", "text": "LRIT ?", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "MUM-2026-09-3992", "tray": "new", "candidates": [ { "answer_id": "EPIRB-SART-001", "score": 0.4724750518798828, "sibling_score": 0.4724750518798828, "answer_score": null, "sibling_qid": "KOL-2017-09-0112-Q004", "sibling_text": "lrit vdr epirb sart mob marker", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What is the difference between EPIRB and SART? Give the function, construction, use and operation of each.", "cross_family": true }, { "answer_id": "TONN-007", "score": 0.43979930877685547, "sibling_score": 0.43979930877685547, "answer_score": null, "sibling_qid": "MUM-2026-06-3480-Q005", "sibling_text": "grt nrt", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Differentiate GT, NT, GRT/NRT, DWT, Lightweight and Displacement", "cross_family": true }, { "answer_id": "LCF-LCB-002", "score": 0.41576269268989563, "sibling_score": 0.41576269268989563, "answer_score": null, "sibling_qid": "MUM-2023-06-0109-Q007", "sibling_text": "lcf trim relationship", "sibling_family": "", "via": "sibling", "answer_title": "How does LCF relate to trim, and why does trim change about LCF rather than LCB?", "cross_family": false } ] }, { "qid": "MUM-2026-09-3992-Q003", "text": "SOLAS CERTIFICATES AND THEIR VALIDITY AND SURVEYS FOR THE SAME ?", "family": "Surveys - Statutory", "subtopic": "Certificates List", "tid": "MUM-2026-09-3992", "tray": "new", "candidates": [ { "answer_id": "CERT-LIST-P02-001", "score": 0.6122167706489563, "sibling_score": 0.6122167706489563, "answer_score": 0.45617291927337644, "sibling_qid": "KOC-2023-05-0192-Q005", "sibling_text": "solas certificates", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "SOLAS certificates carried onboard", "cross_family": false }, { "answer_id": "CERT-LIST-P02-004", "score": 0.5490586757659912, "sibling_score": 0.5490586757659912, "answer_score": null, "sibling_qid": "KOL-2016-11-0029-Q002", "sibling_text": "all life time certificate and statutory certificate with validity and all surveys", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Validity, renewal, interim certificates and e-certificate verification", "cross_family": false }, { "answer_id": "CERT-LIST-P01-001", "score": 0.5263129472732544, "sibling_score": 0.5263129472732544, "answer_score": null, "sibling_qid": "MUM-2026-03-0827-Q004", "sibling_text": "certificates carried onboard ships along with conventions supporting it", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "List the statutory certificates carried onboard a ship.", "cross_family": false } ] }, { "qid": "MUM-2026-09-3992-Q004", "text": "VARIOUS COMMITTEES OF IMO THEIR ROLES ?", "family": "IMO Structure & Conventions", "subtopic": "IMO / Committees / Codes", "tid": "MUM-2026-09-3992", "tray": "review", "candidates": [ { "answer_id": "IMO-CODES-P03-002", "score": 0.7885946035385132, "sibling_score": 0.7885946035385132, "answer_score": 0.5497297257184982, "sibling_qid": "KOL-2017-01-0050-Q002", "sibling_text": "imo committees", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": false }, { "answer_id": "IMO-5PIL-002", "score": 0.7781447768211365, "sibling_score": 0.7781447768211365, "answer_score": 0.5430259734392165, "sibling_qid": "KOC-2026-09-2186-Q004", "sibling_text": "imo committees and sub committees", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "The committees and sub-committees, and what they do", "cross_family": false }, { "answer_id": "IMO-CC-P01-001", "score": 0.770102322101593, "sibling_score": 0.770102322101593, "answer_score": 0.530025452375412, "sibling_qid": "KOL-2025-07-0996-Q002", "sibling_text": "imo structure committee and sub committees", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Explain the structure and organs of IMO — Assembly, Council, Committees and Secretariat.", "cross_family": false } ] }, { "qid": "MUM-2026-09-3992-Q006", "text": "WHAT IS CLASS AND WHY IT IS REQUIRED ?", "family": "Surveys - Statutory", "subtopic": "Certificates List", "tid": "MUM-2026-09-3992", "tray": "new", "candidates": [ { "answer_id": "IACS-324-003", "score": 0.5083450078964233, "sibling_score": 0.5083450078964233, "answer_score": null, "sibling_qid": "KOC-2024-03-0321-Q011", "sibling_text": "how class can become ro explain conditions", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "3. What is a Recognized Organization, how is it recognized by a flag State, and how can a classification society become one?", "cross_family": false }, { "answer_id": "CLASS-NOT-001", "score": 0.506058931350708, "sibling_score": 0.506058931350708, "answer_score": 0.3401392295956612, "sibling_qid": "KOC-2025-10-0682-Q011", "sibling_text": "notatin of class", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "What is class notation, and how would you explain the notation written for your ship?", "cross_family": false }, { "answer_id": "CERT-LIST-P02-005", "score": 0.5017942786216736, "sibling_score": 0.5017942786216736, "answer_score": 0.3449465036392212, "sibling_qid": "MUM-2026-09-3906-Q007", "sibling_text": "why class certificate required", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "Class certificate / classification certificate", "cross_family": false } ] }, { "qid": "MUM-2026-09-3993-Q002", "text": "Battery room checks ?", "family": "Electrical - Batteries & DC Systems", "subtopic": "Battery Charging / Trickle / Maintenance", "tid": "MUM-2026-09-3993", "tray": "review", "candidates": [ { "answer_id": "BAT-CHG-002", "score": 0.7476158142089844, "sibling_score": 0.7476158142089844, "answer_score": 0.5434946656227112, "sibling_qid": "MUM-2023-05-1388-Q003", "sibling_text": "battery room inspection details of battery charged and discharged", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "Battery room inspection, and checks in the charged versus discharged condition", "cross_family": false }, { "answer_id": "BDC-P06-01", "score": 0.7350946664810181, "sibling_score": 0.7350946664810181, "answer_score": 0.4822811663150787, "sibling_qid": "CHE-2026-03-0347-Q006", "sibling_text": "battery room safeties safety checks in battery room", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "Battery-room hazards, requirements and entry precautions", "cross_family": false }, { "answer_id": "BDC-P03-05", "score": 0.7324030995368958, "sibling_score": 0.7324030995368958, "answer_score": null, "sibling_qid": "KOL-2019-02-2260-Q001", "sibling_text": "maintenance of battery and checks in battery room", "sibling_family": "Electrical - Batteries & DC Systems", "via": "sibling", "answer_title": "Battery routine maintenance and inspection", "cross_family": false } ] }, { "qid": "MUM-2026-09-3996-Q001", "text": "Which ship ?", "family": "Status & Introduction", "subtopic": "", "tid": "MUM-2026-09-3996", "tray": "review", "candidates": [ { "answer_id": "CHEM-PA-011", "score": 0.7329003810882568, "sibling_score": 0.7329003810882568, "answer_score": null, "sibling_qid": "MUM-2026-03-2938-Q002", "sibling_text": "which vessel", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "What ‘en route’ means for Annex II discharge", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.7279760837554932, "sibling_score": 0.7279760837554932, "answer_score": null, "sibling_qid": "MUM-2026-03-2588-Q001", "sibling_text": "which ships u have done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.7122074961662292, "sibling_score": 0.7122074961662292, "answer_score": 0.42198397517204284, "sibling_qid": "MUM-2026-02-0731-Q002", "sibling_text": "what type of ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "MUM-2026-09-3997-Q001", "text": "What type of ship done?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-09-3997", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8515676856040955, "sibling_score": 0.8515676856040955, "answer_score": null, "sibling_qid": "MUM-2026-02-1280-Q001", "sibling_text": "type of ship done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "SOLAS12-BC-A-001", "score": 0.7455957531929016, "sibling_score": 0.7455957531929016, "answer_score": null, "sibling_qid": "MUM-2026-04-2958-Q001", "sibling_text": "ship done bulk carrier", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "SOLAS definition and scope of a bulk carrier", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.7443118095397949, "sibling_score": 0.7443118095397949, "answer_score": null, "sibling_qid": "CHE-2026-02-0478-Q004", "sibling_text": "this type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false } ] }, { "qid": "MUM-2026-09-3997-Q004", "text": "Difference in TIE ROD between MC and MCC engine?", "family": "2-Stroke - Structure & Tie Rods", "subtopic": "Tie Rod / Tie Bolt", "tid": "MUM-2026-09-3997", "tray": "new", "candidates": [ { "answer_id": "TR-TB-PA-004", "score": 0.6464618444442749, "sibling_score": 0.6464618444442749, "answer_score": 0.4721894145011902, "sibling_qid": "KOL-2017-07-1303-Q001", "sibling_text": "difference between tie rods of mc and mcc from where you can see cross questions", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Arrangement, number and position; twin tie rods and MC/MC-C developments", "cross_family": true }, { "answer_id": "MCC-MEB-P01-001", "score": 0.6386619210243225, "sibling_score": 0.6386619210243225, "answer_score": null, "sibling_qid": "KOL-2020-02-1520-Q002", "sibling_text": "difference between mc and mcc engines cross question journal dia size tie rod diameter etc", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "MC-C (\"Compact\") engine — design and the main constructional differences from MC", "cross_family": true }, { "answer_id": "TBR-TT-P02-002", "score": 0.5517077445983887, "sibling_score": 0.5517077445983887, "answer_score": null, "sibling_qid": "KOL-2026-05-4244-Q010", "sibling_text": "how will you check the tightness of tie rods in mc and mc c engines", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Checking tie rod tightness / slackness — stopped and running", "cross_family": true } ] }, { "qid": "MUM-2026-09-3997-Q005", "text": "Type of boiler worked?", "family": "Boilers - Construction & Components", "subtopic": "Boiler Types / Construction", "tid": "MUM-2026-09-3997", "tray": "review", "candidates": [ { "answer_id": "BLR-CAP-BOILER-CAPACITY-RATING-005", "score": 0.7688468098640442, "sibling_score": 0.7688468098640442, "answer_score": null, "sibling_qid": "MUM-2026-09-3892-Q008", "sibling_text": "type of boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "What are boiler pressure ratings or maximum working pressure?", "cross_family": false }, { "answer_id": "BLR-TUBE-P01-002", "score": 0.7476692199707031, "sibling_score": 0.7476692199707031, "answer_score": 0.5262522041797638, "sibling_qid": "CHE-2026-05-0555-Q009", "sibling_text": "what type boiler", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "03. Types, functions and arrangement of boiler tubes", "cross_family": false }, { "answer_id": "BLR-DRUM-002", "score": 0.747214674949646, "sibling_score": 0.747214674949646, "answer_score": null, "sibling_qid": "MUM-2026-06-3660-Q005", "sibling_text": "boiler type and boiler construction", "sibling_family": "Boilers - Construction & Components", "via": "sibling", "answer_title": "Steam-drum construction, material and plate manufacture, and construction-stage tests", "cross_family": false } ] }, { "qid": "MUM-2026-09-3998-Q001", "text": "Which company? which attempt ?what is status of other orals? type of ship", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "MUM-2026-09-3998", "tray": "new", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.6215631365776062, "sibling_score": 0.6215631365776062, "answer_score": null, "sibling_qid": "KOC-2026-08-2106-Q001", "sibling_text": "status of written oral company type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.5610302090644836, "sibling_score": 0.5610302090644836, "answer_score": null, "sibling_qid": "KOC-2026-03-0873-Q001", "sibling_text": "type of ship company", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false }, { "answer_id": "ANCH-C-006", "score": 0.5322902798652649, "sibling_score": 0.5322902798652649, "answer_score": null, "sibling_qid": "CHE-2026-02-0478-Q004", "sibling_text": "this type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false } ] }, { "qid": "MUM-2026-09-3998-Q004", "text": "ISM-full elements?", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "MUM-2026-09-3998", "tray": "new", "candidates": [ { "answer_id": "ISM-ELEM-003", "score": 0.6250222325325012, "sibling_score": 0.6250222325325012, "answer_score": 0.3409893959760666, "sibling_qid": "MUM-2024-08-0193-Q003", "sibling_text": "ism elements", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Elements, chapters & structure of the ISM Code", "cross_family": false }, { "answer_id": "ISM-ELEM-002", "score": 0.5731070637702942, "sibling_score": 0.5731070637702942, "answer_score": null, "sibling_qid": "MUM-2026-02-0790-Q002", "sibling_text": "ism full details", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the ISM Code?", "cross_family": false }, { "answer_id": "ISPS-SL-001", "score": 0.5277681350708008, "sibling_score": 0.5277681350708008, "answer_score": null, "sibling_qid": "MUM-2024-09-0203-Q007", "sibling_text": "isps full", "sibling_family": "ISPS", "via": "sibling", "answer_title": "The ISPS Code — purpose, scope and the SOLAS link", "cross_family": true } ] }, { "qid": "MUM-2026-09-3998-Q005", "text": "As 2/E how to maintain ISM?", "family": "ISM Code", "subtopic": "ISM Code Overview / 16 Elements", "tid": "MUM-2026-09-3998", "tray": "new", "candidates": [ { "answer_id": "ISM-AUD-P02-005", "score": 0.5582824945449829, "sibling_score": 0.5582824945449829, "answer_score": 0.3097127929329872, "sibling_qid": "KOC-2025-05-2066-Q010", "sibling_text": "ism maintenance", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "ISM and maintenance: PMS, risk assessment and critical spares", "cross_family": false }, { "answer_id": "PMS-392-002", "score": 0.4760710597038269, "sibling_score": 0.4760710597038269, "answer_score": null, "sibling_qid": "KOL-2020-06-1534-Q009", "sibling_text": "how to co relate maintenance to ism", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "How is PMS linked with the ISM Code and SOLAS maintenance requirements?", "cross_family": true }, { "answer_id": "ISM-2E-A-001", "score": 0.46357452869415283, "sibling_score": 0.46357452869415283, "answer_score": null, "sibling_qid": "CHE-2026-04-0257-Q020", "sibling_text": "what is the role of 2e as per ism", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Roles, duties and responsibilities of a Second Engineer under ISM/SMS", "cross_family": false } ] }, { "qid": "MUM-2026-09-3998-Q006", "text": "MLC-full?", "family": "MLC", "subtopic": "MLC Overview / 5 Titles", "tid": "MUM-2026-09-3998", "tray": "new", "candidates": [ { "answer_id": "CLC-CIV-A-001", "score": 0.49830150604248047, "sibling_score": 0.49830150604248047, "answer_score": null, "sibling_qid": "KOL-2025-10-1105-Q007", "sibling_text": "1 clc full", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "CLC Convention — objective, scope and shipowner liability", "cross_family": true }, { "answer_id": "MLC-WRH-B-007", "score": 0.4756186008453369, "sibling_score": 0.4756186008453369, "answer_score": 0.2589968889951706, "sibling_qid": "MUM-2026-01-0701-Q002", "sibling_text": "detainable deficiency of mlc", "sibling_family": "MLC", "via": "sibling", "answer_title": "MLC detainable deficiencies", "cross_family": false }, { "answer_id": "ISMNC-002", "score": 0.47285401821136475, "sibling_score": 0.47285401821136475, "answer_score": null, "sibling_qid": "MUM-2026-01-0685-Q005", "sibling_text": "mlc mnc", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is a major non-conformity under the ISM Code? Give the definition and name some.", "cross_family": true } ] }, { "qid": "MUM-2026-09-3998-Q012", "text": "ACTIVE SUBSTANCE IN BALLAST WATER ?", "family": "Other Conventions", "subtopic": "Ballast Water Convention / BWM / BWMS", "tid": "MUM-2026-09-3998", "tray": "review", "candidates": [ { "answer_id": "BWM-D1D2-P05-001", "score": 0.6896907687187195, "sibling_score": 0.6896907687187195, "answer_score": 0.4480460166931152, "sibling_qid": "KOC-2023-10-0227-Q005", "sibling_text": "2e role in ballast water treatment", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "How does a BWMS treat organisms, and how is it operated and maintained onboard?", "cross_family": false }, { "answer_id": "BWM-P01-001", "score": 0.6660031080245972, "sibling_score": 0.6660031080245972, "answer_score": null, "sibling_qid": "KOC-2022-11-0111-Q005", "sibling_text": "ballast water standard", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "", "cross_family": false }, { "answer_id": "BWM-P01-003", "score": 0.6603460907936096, "sibling_score": 0.6603460907936096, "answer_score": null, "sibling_qid": "KOC-2024-11-0462-Q003", "sibling_text": "document ballast water management", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "", "cross_family": false } ] }, { "qid": "MUM-2026-09-3998-Q013", "text": "As 2E what will you do if motor trip?", "family": "Electrical - Motors & Starters", "subtopic": "Motor Not Starting", "tid": "MUM-2026-09-3998", "tray": "new", "candidates": [ { "answer_id": "SGM-ELEC-001", "score": 0.6096418499946594, "sibling_score": 0.6096418499946594, "answer_score": null, "sibling_qid": "MUM-2024-12-1475-Q005", "sibling_text": "steering gear motor trip after telling short circuit trip i told all alarms and trips", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What are the safeties, alarms and trips on the steering gear motor as per SOLAS — and how do you activate the safematic?", "cross_family": false }, { "answer_id": "MNS-002", "score": 0.6054002642631531, "sibling_score": 0.6054002642631531, "answer_score": 0.48178932070732117, "sibling_qid": "KOC-2022-10-1204-Q011", "sibling_text": "eto reported motor not working action as second engineer", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "A motor is reported dead or not working — your action and checks as second engineer", "cross_family": false }, { "answer_id": "IRT-A-013", "score": 0.6028546094894409, "sibling_score": 0.6028546094894409, "answer_score": null, "sibling_qid": "KOL-2022-05-2560-Q003", "sibling_text": "electrical officer chkd insulation resistance of all motor in e r and make a report and submit to 2e as a 2e what ur action", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Electrical officer hands you an IR report - your action as 2/E", "cross_family": false } ] }, { "qid": "MUM-2026-09-3998-Q015", "text": "Hoe to maintenance ACB ?EXPLAIN RACK OUT", "family": "Electrical - Switchgear & Protection", "subtopic": "Circuit Breakers (ACB / VCB / SF6)", "tid": "MUM-2026-09-3998", "tray": "new", "candidates": [ { "answer_id": "CBKR-D-ISORACK-001", "score": 0.6046873331069946, "sibling_score": 0.6046873331069946, "answer_score": 0.3744454860687256, "sibling_qid": "MUM-2025-12-1827-Q002", "sibling_text": "acb maintenance and racking out procedure", "sibling_family": "", "via": "sibling", "answer_title": "How do you safely isolate, rack out, withdraw and prove dead an ACB/VCB before work?", "cross_family": false }, { "answer_id": "CB033-C-001", "score": 0.5477170348167419, "sibling_score": 0.5477170348167419, "answer_score": 0.3806400656700134, "sibling_qid": "MUM-2026-03-2012-Q008", "sibling_text": "acb maintenance", "sibling_family": "Electrical - Switchgear & Protection", "via": "sibling", "answer_title": "How do you carry out maintenance and testing on an ACB / main circuit breaker?", "cross_family": false }, { "answer_id": "PMS-392-003", "score": 0.5306076407432556, "sibling_score": 0.5306076407432556, "answer_score": null, "sibling_qid": "MUM-2026-06-3544-Q005", "sibling_text": "acb routine maintenance how will you do it in absence of eto", "sibling_family": "Electrical - Switchgear & Protection", "via": "sibling", "answer_title": "Types of maintenance onboard — breakdown, preventive and condition-based", "cross_family": false } ] }, { "qid": "MUM-2026-09-3999-Q001", "text": "Type of engine ?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "MUM-2026-09-3999", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P03-001", "score": 0.7996186017990112, "sibling_score": 0.7996186017990112, "answer_score": null, "sibling_qid": "MUM-2026-06-3630-Q002", "sibling_text": "engine type", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "2-Stroke vs 4-Stroke — and which for main propulsion", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.7920165657997131, "sibling_score": 0.7920165657997131, "answer_score": null, "sibling_qid": "MUM-2026-06-3474-Q002", "sibling_text": "type of engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false }, { "answer_id": "TC-TROUBLE-338-001", "score": 0.45196284651756286, "sibling_score": null, "answer_score": 0.45196284651756286, "sibling_qid": "", "sibling_text": "1 turbocharger type main engine vs generator engine compressor is centrifugal in both cases only the turbine type differs large slow speed main engine axial flow turbine single stage constant pressure system", "sibling_family": "", "via": "answer_title", "answer_title": "1. Turbocharger type — main engine vs generator engine", "cross_family": false } ] }, { "qid": "MUM-2026-09-3999-Q006", "text": "Where high TBN is used ?", "family": "Refrigeration & AC", "subtopic": "HP / LP Trip", "tid": "MUM-2026-09-3999", "tray": "new", "candidates": [ { "answer_id": "CYL-LUB-B-003", "score": 0.4178217649459839, "sibling_score": 0.4178217649459839, "answer_score": 0.27262445241212846, "sibling_qid": "KOL-2021-07-3428-Q005", "sibling_text": "tbn calculation", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "BN / TBN selection and sulphur matching (HSFO, VLSFO, SECA)", "cross_family": true }, { "answer_id": "LO-TEST-P01-004", "score": 0.3958131670951843, "sibling_score": 0.3958131670951843, "answer_score": 0.28727294504642487, "sibling_qid": "KOL-2018-09-1418-Q003", "sibling_text": "what is bn tbn tan sn", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "TBN, BN, TAN, SAN and the SAE grade", "cross_family": true }, { "answer_id": "FQCC-583-B-017", "score": 0.34824812412261963, "sibling_score": 0.34824812412261963, "answer_score": 0.282270285487175, "sibling_qid": "KOL-2026-05-4093-Q010", "sibling_text": "what is tbn number who decides this number", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "What is TBN, and who decides the number?", "cross_family": true } ] }, { "qid": "MUM-2026-09-3999-Q007", "text": "Soot fire indications and action ?", "family": "SOLAS - Fire Safety", "subtopic": "Fire Detector Type", "tid": "MUM-2026-09-3999", "tray": "new", "candidates": [ { "answer_id": "UPT-FIRE-003", "score": 0.6289551258087158, "sibling_score": 0.6289551258087158, "answer_score": null, "sibling_qid": "KOC-2026-05-2132-Q015", "sibling_text": "junior engineer reports soot fire what action to take", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Fire in the exhaust gas boiler or economiser — actions and instructions to the duty engineers", "cross_family": true }, { "answer_id": "FSH-DET-001", "score": 0.5763087272644043, "sibling_score": 0.5763087272644043, "answer_score": null, "sibling_qid": "CHE-2025-10-0073-Q001", "sibling_text": "what are the indications for fire", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Types of fire, smoke, heat and flame detectors used onboard", "cross_family": false }, { "answer_id": "FIRE-P04-01", "score": 0.5623283982276917, "sibling_score": 0.5623283982276917, "answer_score": null, "sibling_qid": "KOC-2022-01-0050-Q003", "sibling_text": "small fire on boiler what is your action what are the fire fighting equipments available near boiler extinguish before raising alarm he was expecting sand box also in ffe", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Small boiler/burner fire — immediate action", "cross_family": false } ] }, { "qid": "MUM-2026-09-3999-Q008", "text": "How to take upper conrod bearing for main engine?", "family": "Auxiliary Engine (4-Stroke)", "subtopic": "AE MAIN BEARING", "tid": "MUM-2026-09-3999", "tray": "review", "candidates": [ { "answer_id": "AE-MB-002", "score": 0.7122756242752075, "sibling_score": 0.7122756242752075, "answer_score": 0.5387628555297851, "sibling_qid": "KOL-2022-02-3517-Q001", "sibling_text": "auxiliary engine main bearing lower shell removal normal bearing and then under slug bearing", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Removing the lower shell / bottom half of an AE main bearing", "cross_family": false }, { "answer_id": "AE-MB-001", "score": 0.7101772427558899, "sibling_score": 0.7101772427558899, "answer_score": null, "sibling_qid": "KOL-2018-03-3129-Q002", "sibling_text": "how to take out main bearing of auxiliary engine", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Removing and renewing an auxiliary-engine main bearing", "cross_family": false }, { "answer_id": "AE-MB-003", "score": 0.7070956826210022, "sibling_score": 0.7070956826210022, "answer_score": 0.5847067475318909, "sibling_qid": "MUM-2024-01-1073-Q008", "sibling_text": "ae main bearing removal procedure how to remove top shell", "sibling_family": "Auxiliary Engine (4-Stroke)", "via": "sibling", "answer_title": "Removing the top shell and the main-bearing locking arrangement", "cross_family": false } ] }, { "qid": "MUM-2026-09-3999-Q010", "text": "Piston stuck during main engine overhaul ?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "Crosshead Bearing", "tid": "MUM-2026-09-3999", "tray": "review", "candidates": [ { "answer_id": "XHEAD-303-007", "score": 0.7153577208518982, "sibling_score": 0.7153577208518982, "answer_score": null, "sibling_qid": "KOC-2025-01-1026-Q008", "sibling_text": "x head overhaul with piston in place", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Crosshead inspection, survey and overhaul, including in-place overhaul", "cross_family": false }, { "answer_id": "SB-PRG-B-004", "score": 0.7145709991455078, "sibling_score": 0.7145709991455078, "answer_score": 0.580619078874588, "sibling_qid": "KOC-2024-12-1881-Q001", "sibling_text": "stuffing box overhaul with piston out of engine", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Bench overhaul with the piston drawn", "cross_family": true }, { "answer_id": "XHD-BRG-C-001", "score": 0.7111387848854065, "sibling_score": 0.7111387848854065, "answer_score": null, "sibling_qid": "KOC-2026-08-2122-Q001", "sibling_text": "crosshead bearing overhaul piston in place", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "A. Present the crosshead bottom shell for survey, piston in place", "cross_family": false } ] }, { "qid": "MUM-2026-10-4000-Q002", "text": "How to take performance ?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Performance parameters", "tid": "MUM-2026-10-4000", "tray": "new", "candidates": [ { "answer_id": "CPP-POL-01", "score": 0.627712070941925, "sibling_score": 0.627712070941925, "answer_score": 0.31481969356536865, "sibling_qid": "CHE-2026-08-0662-Q003", "sibling_text": "what is performance why you taking when you will take", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Why and how is a main-engine performance test prepared, taken and assessed?", "cross_family": false }, { "answer_id": "ETP-344-P01-004", "score": 0.5515665411949158, "sibling_score": 0.5515665411949158, "answer_score": null, "sibling_qid": "CHE-2026-05-0551-Q011", "sibling_text": "why we are taking performance at 85 always", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "MCR, NCR, sea margin, load curve, heavy running — and why ~85%", "cross_family": false }, { "answer_id": "IND-CARD-003", "score": 0.5366541743278503, "sibling_score": 0.5366541743278503, "answer_score": null, "sibling_qid": "MUM-2025-03-1106-Q004", "sibling_text": "me performance power how to take i told pmax indicator for rtflex engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "How do you take indicator cards and calculate indicated power?", "cross_family": false } ] }, { "qid": "MUM-2026-10-4000-Q008", "text": "Refrigerant...air in system how u will know ?", "family": "Refrigeration & AC", "subtopic": "Air in System", "tid": "MUM-2026-10-4000", "tray": "review", "candidates": [ { "answer_id": "AIR-REF-001", "score": 0.7934231162071228, "sibling_score": 0.7934231162071228, "answer_score": 0.5890123218297958, "sibling_qid": "KOC-2021-12-1771-Q005", "sibling_text": "how do you detect air in refer system discharge pressure gauge of the compressor will show corresponding condensing temperature of that refrigerant compare it to condenser thermometer if temperature in the discharge pressure gauge reading is more then air in the system", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "1. Indications that air is present in a refrigeration system", "cross_family": false }, { "answer_id": "AIR-REF-004", "score": 0.7366567254066467, "sibling_score": 0.7366567254066467, "answer_score": 0.5433456629514694, "sibling_qid": "MUM-2026-09-3936-Q010", "sibling_text": "refrigeration system how to know air in the system key ans compound gauge", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "4. Detecting and purging air from a refrigeration system", "cross_family": false }, { "answer_id": "AIR-REF-005", "score": 0.5426328212022781, "sibling_score": null, "answer_score": 0.5426328212022781, "sibling_qid": "", "sibling_text": "5 removing air using a recovery purge unit same indications prompt the check high head pressure not matching saturation temperature hot discharge poor cooling automatic purge unit takes gas from condenser top sub cools in a purge chamber condenses refrigerant back vents only residual air", "sibling_family": "", "via": "answer_title", "answer_title": "5. Removing air using a recovery / purge unit", "cross_family": false } ] }, { "qid": "MUM-2026-10-4000-Q010", "text": "Belt driven purifier advantages ?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "MOB Marker", "tid": "MUM-2026-10-4000", "tray": "new", "candidates": [ { "answer_id": "PURIF-172-003", "score": 0.5489985942840576, "sibling_score": 0.5489985942840576, "answer_score": null, "sibling_qid": "MUM-2024-08-2238-Q009", "sibling_text": "alcap purifier advantages", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "ALCAP and the water transducer", "cross_family": true }, { "answer_id": "PURIF-172-001", "score": 0.5038612484931946, "sibling_score": 0.5038612484931946, "answer_score": null, "sibling_qid": "MUM-2023-08-2186-Q003", "sibling_text": "why purifier has friction brake", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Purifier not picking up speed — drive, clutch, brake, shear pin", "cross_family": true }, { "answer_id": "PUR-OPS-P01-003", "score": 0.48654258251190186, "sibling_score": 0.48654258251190186, "answer_score": null, "sibling_qid": "CHE-2026-02-0244-Q007", "sibling_text": "why gravity disc in purifier", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Gravity disc, E-line and the oil-water interface — purpose, selection, and the effect of a shift", "cross_family": true } ] }, { "qid": "MUM-2026-10-4000-Q011", "text": "why purifier is not generating rpm?", "family": "Purifier & Centrifuges", "subtopic": "FO/LO/DO Purifier", "tid": "MUM-2026-10-4000", "tray": "new", "candidates": [ { "answer_id": "PURIF-172-001", "score": 0.5878523588180542, "sibling_score": 0.5878523588180542, "answer_score": 0.2787661641836166, "sibling_qid": "MUM-2026-06-3483-Q009", "sibling_text": "purifier not picking up rpm reasons", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Purifier not picking up speed — drive, clutch, brake, shear pin", "cross_family": false }, { "answer_id": "PURIF-BOWL-P02-002", "score": 0.5716423392295837, "sibling_score": 0.5716423392295837, "answer_score": null, "sibling_qid": "KOL-2017-08-1321-Q005", "sibling_text": "purifier rpm not coming reasons", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Drive, rated RPM, overload, vibration / wobbling & dynamic balancing — causes and troubleshooting", "cross_family": false }, { "answer_id": "PURIF-BOWL-P02-001", "score": 0.4856462776660919, "sibling_score": 0.4856462776660919, "answer_score": null, "sibling_qid": "MUM-2026-05-3206-Q011", "sibling_text": "purifier not desludging reasons", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Bowl opening, closing & manual desludging — mechanism, manual operation, failure causes", "cross_family": false } ] }, { "qid": "MUM-2026-10-4001-Q002", "text": "Environment policy ?Where to check- tell him posters", "family": "2-Stroke - Crankshaft & Bedplate", "subtopic": "Crankcase Relief Door", "tid": "MUM-2026-10-4001", "tray": "new", "candidates": [ { "answer_id": "SMSFR-002", "score": 0.48439720273017883, "sibling_score": 0.48439720273017883, "answer_score": null, "sibling_qid": "KOL-2025-11-1118-Q004", "sibling_text": "environmental protection policy of sms", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "What is the Safety Management System — the SMS manual, its contents, objectives, why it is needed onboard, and the company SMS policy?", "cross_family": true }, { "answer_id": "ISM-AUD-P03-006", "score": 0.45972752571105957, "sibling_score": 0.45972752571105957, "answer_score": null, "sibling_qid": "MUM-2026-03-0811-Q006", "sibling_text": "what do you understand by safety environment protection policy", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Company safety and environmental-protection objectives", "cross_family": true }, { "answer_id": "IAPP-595-006", "score": 0.45574963092803955, "sibling_score": 0.45574963092803955, "answer_score": null, "sibling_qid": "KOC-2024-09-0402-Q010", "sibling_text": "how to verify compliance of regulations regarding this pollutants", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "How do you verify and demonstrate onboard that the ship complies with the Annex VI emission limits?", "cross_family": true } ] }, { "qid": "MUM-2026-10-4001-Q004", "text": "Free chlorine limit ?", "family": "Cargo Ops - Tankers", "subtopic": "Benzene / H2S Check", "tid": "MUM-2026-10-4001", "tray": "review", "candidates": [ { "answer_id": "BWTEST-A-002", "score": 0.6770855188369751, "sibling_score": 0.6770855188369751, "answer_score": 0.3909802481532097, "sibling_qid": "MUM-2026-05-3131-Q006S5", "sibling_text": "what is the limit of chlorides", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "What does high boiler-water chloride, salinity or TDS indicate, and what action is required?", "cross_family": true }, { "answer_id": "PR-SAFE-A-002", "score": 0.5418262481689453, "sibling_score": 0.5418262481689453, "answer_score": null, "sibling_qid": "KOC-2023-10-0235-Q004", "sibling_text": "limits for h2s co hc o2", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Pump-room fixed gas detection and atmosphere monitoring", "cross_family": false }, { "answer_id": "BWMS-C-004", "score": 0.4215034782886505, "sibling_score": null, "answer_score": 0.4215034782886505, "sibling_qid": "", "sibling_text": "electrochlorination chemical systems tro active substances neutralisation electrochlorination electrolyse seawater to make hypochlorite oxidants the biocide measured as tro tro total residual oxidant the oxidising disinfectant residual monitored on the main line during ballasting and at the discharge during de ballasting", "sibling_family": "", "via": "answer_title", "answer_title": "Electrochlorination & chemical systems — TRO, active substances, neutralisation", "cross_family": false } ] }, { "qid": "MUM-2926-09-3945-Q001", "text": "Details about attempts functions remaining ? Type of ship sailed ?", "family": "Status & Introduction", "subtopic": "Experience Related Intro", "tid": "MUM-2926-09-3945", "tray": "new", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.6257819533348083, "sibling_score": 0.6257819533348083, "answer_score": null, "sibling_qid": "MUM-2026-06-3459-Q001", "sibling_text": "type of ship sail and status of other function", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.6211541295051575, "sibling_score": 0.6211541295051575, "answer_score": null, "sibling_qid": "MUM-2026-02-1280-Q001", "sibling_text": "type of ship done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.5794273018836975, "sibling_score": 0.5794273018836975, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false } ] }, { "qid": "MUM-2926-09-3945-Q002", "text": "Difference in construction of type 1 and type 2 chemical tankers ?", "family": "Cargo Ops - Tankers", "subtopic": "Chemical Tanker Code (BCH/IBC)", "tid": "MUM-2926-09-3945", "tray": "review", "candidates": [ { "answer_id": "BCH-IBC-A-001", "score": 0.7090050578117371, "sibling_score": 0.7090050578117371, "answer_score": 0.5183751761913299, "sibling_qid": "MUM-2022-11-0068-Q003", "sibling_text": "constructional difference btw type 2 type 3 chemical tanker", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Type 1, Type 2 and Type 3 chemical tankers — the ship-type classification", "cross_family": false }, { "answer_id": "IBC-BCH-B-005", "score": 0.6568761467933655, "sibling_score": 0.6568761467933655, "answer_score": 0.5214495152235031, "sibling_qid": "CHE-2026-02-0108-Q010", "sibling_text": "constructional requirement for type 1 2 3 chemical tankers", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Type 1, 2 and 3 chemical tankers — construction and tank location", "cross_family": false }, { "answer_id": "COT-02", "score": 0.6554654836654663, "sibling_score": 0.6554654836654663, "answer_score": 0.5306503921747208, "sibling_qid": "KOC-2025-07-0620-Q001", "sibling_text": "difference in the construction of chemical tanker and crude oil tanker cargo tanks", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Oil tanker versus chemical tanker construction", "cross_family": false } ] }, { "qid": "MUM-2926-09-3945-Q003", "text": "⁠What do you mean by Equipment number?", "family": "Drydock & Underwater Surveys", "subtopic": "Equipment Number", "tid": "MUM-2926-09-3945", "tray": "review", "candidates": [ { "answer_id": "EQNO-536-001", "score": 0.7748982310295105, "sibling_score": 0.7748982310295105, "answer_score": 0.4408425152301788, "sibling_qid": "MUM-2026-02-2556-Q002", "sibling_text": "equipment number", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "What is equipment number?", "cross_family": false }, { "answer_id": "ANCH-CHN-A-003", "score": 0.6663134098052979, "sibling_score": 0.6663134098052979, "answer_score": 0.3681589007377624, "sibling_qid": "KOC-2024-10-0433-Q008", "sibling_text": "what is equipment no", "sibling_family": "Auxiliary Equipment", "via": "sibling", "answer_title": "Equipment Number & how cable length is decided", "cross_family": true }, { "answer_id": "ELECTRICAL-M-A-01", "score": 0.4092050582170486, "sibling_score": null, "answer_score": 0.4092050582170486, "sibling_qid": "", "sibling_text": "motor frame number", "sibling_family": "", "via": "answer_title", "answer_title": "Motor Frame Number", "cross_family": false } ] }, { "qid": "MUM-2926-09-3945-Q004", "text": "What all certificates and documents should be present onboard for fixed co2 system ?", "family": "SOLAS - Fire Safety", "subtopic": "CO2 System", "tid": "MUM-2926-09-3945", "tray": "review", "candidates": [ { "answer_id": "CO2-SYS-004", "score": 0.6714399456977844, "sibling_score": 0.6714399456977844, "answer_score": null, "sibling_qid": "KOC-2024-11-0472-Q008", "sibling_text": "fixed co2 system requirements", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Fixed CO2 total-flooding system — overview, working and arrangements", "cross_family": false }, { "answer_id": "CO2-SYS-001", "score": 0.6620067358016968, "sibling_score": 0.6620067358016968, "answer_score": null, "sibling_qid": "KOC-2025-03-0553-Q006", "sibling_text": "co2 release re entry procedure internal passenger ship certificates type a and type b certificate in details", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CO2 release procedure, shutdowns, re-entry and casualty-use decisions", "cross_family": false }, { "answer_id": "CO2-CALC-P01-004", "score": 0.661830484867096, "sibling_score": 0.661830484867096, "answer_score": null, "sibling_qid": "MUM-2023-05-0100-Q005", "sibling_text": "certificate in which amount of co2 required is given", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Where is the CO2 quantity specified, and how would you prove to a surveyor the bottle count is as per standard?", "cross_family": false } ] }, { "qid": "MUM-2926-09-3945-Q005", "text": "What is there in biofouling management plan ?", "family": "Drydock & Underwater Surveys", "subtopic": "Hull Painting / Antifouling", "tid": "MUM-2926-09-3945", "tray": "new", "candidates": [ { "answer_id": "ICCP-119-P01-001", "score": 0.6153904795646667, "sibling_score": 0.6153904795646667, "answer_score": null, "sibling_qid": "KOC-2023-08-0215-Q003", "sibling_text": "australian biofouling management", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "ICCP — purpose, principle and basic working", "cross_family": false }, { "answer_id": "BWMS-C-005", "score": 0.543874979019165, "sibling_score": 0.543874979019165, "answer_score": 0.4127566769719124, "sibling_qid": "KOL-2017-09-0116-Q002", "sibling_text": "ballast water management equipment and it s maintenance 2 sewage treatment plant checks maintenance and bod chlorine tablets addition sludge content check", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Maintenance, operational checks, installation factors & the engineer's role", "cross_family": true }, { "answer_id": "HULL-PAINT-005", "score": 0.5085828900337219, "sibling_score": 0.5085828900337219, "answer_score": 0.45292074978351593, "sibling_qid": "KOC-2023-05-0189-Q003", "sibling_text": "antifouling paint signa coating", "sibling_family": "Drydock & Underwater Surveys", "via": "sibling", "answer_title": "Anti-fouling and silicone (foul-release) coatings, the AFS Convention, and current developments", "cross_family": false } ] }, { "qid": "MUM-2926-09-3945-Q006", "text": "Explain in details all the components of emergency towing system ?", "family": "Automation & Controls", "subtopic": "Bridge Control of ME", "tid": "MUM-2926-09-3945", "tray": "review", "candidates": [ { "answer_id": "ETA-567-001", "score": 0.6955900192260742, "sibling_score": 0.6955900192260742, "answer_score": 0.4747389256954193, "sibling_qid": "MUM-2026-03-0828-Q002", "sibling_text": "emergency towing arrangement what all parts", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Emergency towing arrangement — purpose, SOLAS requirement, standby and passing to the tug", "cross_family": true }, { "answer_id": "ETA-567-002", "score": 0.5370707809925079, "sibling_score": null, "answer_score": 0.5370707809925079, "sibling_qid": "", "sibling_text": "emergency towing arrangement equipment and contents six named components msc 35 63 2 2 pick up gear towing pennant chafing gear chafing chain fairlead strongpoint roller pedestal pick up gear typically a buoyant pick up line and a floating pick up buoy clearly marked for use in darkness and poor visibility a light or flag may be part of the approved ship arrangement not a fixed requirement", "sibling_family": "", "via": "answer_title", "answer_title": "Emergency towing arrangement — equipment and contents", "cross_family": false }, { "answer_id": "SG-055-B-001", "score": 0.5106377601623535, "sibling_score": 0.5106377601623535, "answer_score": null, "sibling_qid": "MUM-2026-05-3272-Q002", "sibling_text": "emergency steering gear requirement", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Emergency steering operation and the deadman handle", "cross_family": true } ] }, { "qid": "NOI-2026-08-0017-Q003", "text": "Difference bet Deep cyc and SLI?", "family": "Cargo Ops - Tankers", "subtopic": "Cargo Tank Construction", "tid": "NOI-2026-08-0017", "tray": "new", "candidates": [ { "answer_id": "EECS-002", "score": 0.3656572103500366, "sibling_score": 0.3656572103500366, "answer_score": null, "sibling_qid": "CHE-2026-09-3905-Q002", "sibling_text": "eexi and cii only differences", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "02. Differentiate EEXI and CII", "cross_family": true }, { "answer_id": "IBC-BCH-B-001", "score": 0.3626110851764679, "sibling_score": 0.3626110851764679, "answer_score": null, "sibling_qid": "KOC-2024-11-0452-Q004", "sibling_text": "different between ibc bch code", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Difference between the IBC Code and the BCH Code", "cross_family": false }, { "answer_id": "MRV-DCS-001", "score": 0.35141682624816895, "sibling_score": 0.35141682624816895, "answer_score": null, "sibling_qid": "MUM-2023-05-0101-Q002", "sibling_text": "imo dcs and difference between them", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is the difference between EU MRV and IMO DCS?", "cross_family": true } ] }, { "qid": "NOI-2026-08-0017-Q005", "text": "PID control what is error type?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "PID Controller", "tid": "NOI-2026-08-0017", "tray": "new", "candidates": [ { "answer_id": "PID-CTRL-001", "score": 0.6236569285392761, "sibling_score": 0.6236569285392761, "answer_score": 0.4296286582946777, "sibling_qid": "MUM-2026-06-3616-Q007", "sibling_text": "pid control", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "What a PID controller is and how it works", "cross_family": false }, { "answer_id": "PID-CTRL-003", "score": 0.6187769770622253, "sibling_score": 0.6187769770622253, "answer_score": null, "sibling_qid": "KOL-2019-03-2270-Q001", "sibling_text": "pid controller relation between output error", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Proportional gain and proportional band", "cross_family": true }, { "answer_id": "PID-CTRL-002", "score": 0.6017892360687256, "sibling_score": 0.6017892360687256, "answer_score": 0.43981165587902066, "sibling_qid": "KOC-2026-03-1726-Q004", "sibling_text": "pid controller what i stands for", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Proportional, integral and derivative actions", "cross_family": false } ] }, { "qid": "NOI-2026-08-0017-Q006", "text": "Short circuit fault fire panel isolation medium?", "family": "Electrical - Protection & Relays", "subtopic": "Circuit Fault Types", "tid": "NOI-2026-08-0017", "tray": "new", "candidates": [ { "answer_id": "OC-UV-TRIP-005", "score": 0.6375464797019958, "sibling_score": 0.6375464797019958, "answer_score": 0.47155348062515257, "sibling_qid": "KOC-2026-03-0843-Q013", "sibling_text": "short circuit protections onboard", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "Short-circuit and overcurrent protection arrangement", "cross_family": false }, { "answer_id": "OC-UV-TRIP-007", "score": 0.6109493374824524, "sibling_score": 0.6109493374824524, "answer_score": null, "sibling_qid": "KOC-2026-03-1726-Q003", "sibling_text": "what arrrangement there for short circuit", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "General overcurrent / undervoltage trips — alarms, values and failure effects", "cross_family": false }, { "answer_id": "ELEC-SAFE-005", "score": 0.6096826195716858, "sibling_score": 0.6096826195716858, "answer_score": 0.5353513479232788, "sibling_qid": "MUM-2022-09-1353-Q004", "sibling_text": "fire in electrical panel how to deal it", "sibling_family": "", "via": "sibling", "answer_title": "Fire in an electrical panel", "cross_family": false } ] }, { "qid": "NOI-2026-09-0002-Q006", "text": "Common point in HV?", "family": "Electrical - High Voltage", "subtopic": "", "tid": "NOI-2026-09-0002", "tray": "new", "candidates": [ { "answer_id": "ENR-P02B-001", "score": 0.5570535659790039, "sibling_score": 0.5570535659790039, "answer_score": null, "sibling_qid": "MUM-2025-05-1517-Q004", "sibling_text": "common point in hv system", "sibling_family": "", "via": "sibling", "answer_title": "Ship’s earthing / distribution system — insulated LV neutral, earthed (Class-approved) HV neutral", "cross_family": false }, { "answer_id": "T038-P01-003", "score": 0.5280290842056274, "sibling_score": 0.5280290842056274, "answer_score": null, "sibling_qid": "MUM-2026-06-3614-Q006", "sibling_text": "hv lv system", "sibling_family": "Electrical - High Voltage", "via": "sibling", "answer_title": "HV vs LV onboard — systems, equipment and motor terminal boxes", "cross_family": false }, { "answer_id": "HV-SYS-P02-001", "score": 0.5058885216712952, "sibling_score": 0.5058885216712952, "answer_score": null, "sibling_qid": "KOL-2019-01-2254-Q003", "sibling_text": "hv advantage", "sibling_family": "", "via": "sibling", "answer_title": "Why high voltage is used onboard ships", "cross_family": false } ] }, { "qid": "NOI-2026-09-0003-Q001", "text": "Hook's law?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Faraday Law", "tid": "NOI-2026-09-0003", "tray": "new", "candidates": [ { "answer_id": "BSBH-420-001", "score": 0.5673706531524658, "sibling_score": 0.5673706531524658, "answer_score": null, "sibling_qid": "CHE-2025-10-0072-Q008", "sibling_text": "hook", "sibling_family": "", "via": "sibling", "answer_title": "What is a breast hook, where is it fitted, and what does it connect at the fore end?", "cross_family": false }, { "answer_id": "STRSTR-298-009", "score": 0.5097424983978271, "sibling_score": 0.5097424983978271, "answer_score": 0.41793053001165387, "sibling_qid": "KOL-2021-04-1584-Q003", "sibling_text": "hook stress", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "What is Hooke’s law in stress-strain behaviour?", "cross_family": true }, { "answer_id": "FAR-EMI-001", "score": 0.4863887429237366, "sibling_score": 0.4863887429237366, "answer_score": null, "sibling_qid": "KOC-2024-01-1325-Q008", "sibling_text": "lenz law", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Faraday's laws of electromagnetic induction and Lenz's law — and their shipboard use", "cross_family": false } ] }, { "qid": "NOI-2026-09-0004-Q001", "text": "Type of engine sailed?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "NOI-2026-09-0004", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.8491237759590149, "sibling_score": 0.8491237759590149, "answer_score": null, "sibling_qid": "MUM-2026-04-1007-Q002", "sibling_text": "type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "ETP-344-P01-001", "score": 0.7679252028465271, "sibling_score": 0.7679252028465271, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q001", "sibling_text": "type of ship sailed and engines details", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.7361655235290527, "sibling_score": 0.7361655235290527, "answer_score": null, "sibling_qid": "KOL-2025-12-2031-Q002", "sibling_text": "type of ship and engine sailed engine nomenclature", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "NOI-2026-09-0004-Q004", "text": "Why d/4 lift in full lift?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Transformer Theory", "tid": "NOI-2026-09-0004", "tray": "new", "candidates": [ { "answer_id": "ACRV-001", "score": 0.37962791323661804, "sibling_score": 0.37962791323661804, "answer_score": null, "sibling_qid": "KOL-2025-06-1980-Q004", "sibling_text": "4compressor 1st stage relive valve lifting", "sibling_family": "Air Compressor", "via": "sibling", "answer_title": "First-stage relief valve lifting or leaking — reasons and checks", "cross_family": true }, { "answer_id": "ACCT-583-B-FINAL-1-003", "score": 0.37248748540878296, "sibling_score": 0.37248748540878296, "answer_score": null, "sibling_qid": "KOL-2017-02-1842-Q002", "sibling_text": "accumulation of pr test wen it shud b carried blow down and hw it is controlled constructional difference in high lift n improved high lift", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "The accumulation test and the safety valve — required lift, how lift and capacity are verified, and why accumulation must stay inside the limit", "cross_family": true }, { "answer_id": "CYL-LINER-P02-005", "score": 0.3681624233722687, "sibling_score": 0.3681624233722687, "answer_score": null, "sibling_qid": "KOL-2017-07-3066-Q001", "sibling_text": "why we take liner wear in four directions i e port stbd and fwd aft", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "L5 · T044-PART_02-G005High", "cross_family": true } ] }, { "qid": "NOI-2026-09-0004-Q007", "text": "What to do if air ingress in refer system?", "family": "Refrigeration & AC", "subtopic": "Air in System", "tid": "NOI-2026-09-0004", "tray": "new", "candidates": [ { "answer_id": "AIR-REF-004", "score": 0.5912607312202454, "sibling_score": 0.5912607312202454, "answer_score": null, "sibling_qid": "MUM-2025-06-2324-Q001", "sibling_text": "air ingress indications in refer and how to remove", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "4. Detecting and purging air from a refrigeration system", "cross_family": false }, { "answer_id": "AIR-REF-001", "score": 0.5867272019386292, "sibling_score": 0.5867272019386292, "answer_score": null, "sibling_qid": "MUM-2026-06-3389-Q007", "sibling_text": "air in refer system what is indications", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "1. Indications that air is present in a refrigeration system", "cross_family": false }, { "answer_id": "AIR-REF-002", "score": 0.585675835609436, "sibling_score": 0.585675835609436, "answer_score": null, "sibling_qid": "KOL-2025-08-3849-Q003", "sibling_text": "air in the ref system from where it is coming", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "2. How air enters a refrigeration system", "cross_family": false } ] }, { "qid": "NOI-2026-09-0005-Q006", "text": "Power factor when 0 and when 1?", "family": "Electrical - Generator & Alternator", "subtopic": "Power Factor", "tid": "NOI-2026-09-0005", "tray": "new", "candidates": [ { "answer_id": "PF-A-002", "score": 0.6076456308364868, "sibling_score": 0.6076456308364868, "answer_score": null, "sibling_qid": "KOC-2026-05-0028-Q003", "sibling_text": "you got power factor 1 explain about it", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Lagging, leading, unity, resistive, inductive, capacitive — and DC", "cross_family": false }, { "answer_id": "PF-A-004", "score": 0.6038838028907776, "sibling_score": 0.6038838028907776, "answer_score": 0.4517049670219421, "sibling_qid": "KOL-2018-06-1380-Q006", "sibling_text": "power factor does changes and how niraj kashyap ext paul int rao 01 03 18", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "The bare 'power factor' prompt — and the drills it triggers", "cross_family": false }, { "answer_id": "GEN-LSI-B-001", "score": 0.6025851368904114, "sibling_score": 0.6025851368904114, "answer_score": null, "sibling_qid": "KOC-2025-11-1639-Q007", "sibling_text": "two alternator 1 running with 0 9 power factor one running with 0 4 what is your action", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "01. Two alternators in parallel — same kW but different current and power factor: cause and correction", "cross_family": false } ] }, { "qid": "NOI-2026-09-0006-Q006", "text": "X and s band radar?", "family": "General Marine Engineering", "subtopic": "AIS / LRIT", "tid": "NOI-2026-09-0006", "tray": "new", "candidates": [ { "answer_id": "EPC-P01-08", "score": 0.5744608640670776, "sibling_score": 0.5744608640670776, "answer_score": 0.42346473038196564, "sibling_qid": "MUM-2026-09-3886-Q006", "sibling_text": "x band and s band wavelength and frequency and type of wave", "sibling_family": "Navigation & Bridge Equipment", "via": "sibling", "answer_title": "Magnetron — what it is and how it works", "cross_family": true }, { "answer_id": "EPIRB-SART-001", "score": 0.4331034719944, "sibling_score": 0.4331034719944, "answer_score": 0.36463735103607176, "sibling_qid": "KOC-2024-03-0313-Q003", "sibling_text": "sart and epirb frequency", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "What is the difference between EPIRB and SART? Give the function, construction, use and operation of each.", "cross_family": true }, { "answer_id": "DUS-P3-05", "score": 0.4226275384426117, "sibling_score": 0.4226275384426117, "answer_score": 0.3415981739759445, "sibling_qid": "MUM-2026-09-3886-Q005", "sibling_text": "how ships radar working", "sibling_family": "Navigation & Bridge Equipment", "via": "sibling", "answer_title": "Radar inspection while entering drydock, and the certificate covering DB inspection", "cross_family": true } ] }, { "qid": "NOI-2026-09-0007-Q001", "text": "Which rank, which company, what kind of engine, I said MCC? Then he asked about ME?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "MC-C vs MEB Engine", "tid": "NOI-2026-09-0007", "tray": "new", "candidates": [ { "answer_id": "MCC-MEB-P01-001", "score": 0.6372914910316467, "sibling_score": 0.6372914910316467, "answer_score": 0.3828998044133186, "sibling_qid": "KOC-2022-07-0968-Q015", "sibling_text": "comparison between me and mcc engines", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "MC-C (\"Compact\") engine — design and the main constructional differences from MC", "cross_family": false }, { "answer_id": "MCC-MEB-P02-003", "score": 0.6322193741798401, "sibling_score": 0.6322193741798401, "answer_score": null, "sibling_qid": "MUM-2024-01-1070-Q003", "sibling_text": "me c engine what difference from mcc engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Conventional MC / MC-C versus electronic ME — the practical operating differences", "cross_family": false }, { "answer_id": "MCC-MEB-P02-002", "score": 0.6284757256507874, "sibling_score": 0.6284757256507874, "answer_score": null, "sibling_qid": "MUM-2026-06-3364-Q007", "sibling_text": "which engine mc c", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "MAN B&W nomenclature — and what MC, MC-C, ME-B, ME-C actually mean", "cross_family": false } ] }, { "qid": "NOI-2026-09-0008-Q005", "text": "IN LUB OIL FILTER WHAT IS THE PURPOSE OF MAGNETS IN THE FILTER?", "family": "2-Stroke - Lubrication & Bearings", "subtopic": "LO Filter", "tid": "NOI-2026-09-0008", "tray": "review", "candidates": [ { "answer_id": "LOF-359-002", "score": 0.8088817596435547, "sibling_score": 0.8088817596435547, "answer_score": 0.4181869402527809, "sibling_qid": "MUM-2026-06-3370-Q004", "sibling_text": "purpose of magnets in main engine lube oil filter", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "FO Filter vs LO Filter — Which Is Finer, and Why?", "cross_family": false }, { "answer_id": "LOF-359-007", "score": 0.5848760604858398, "sibling_score": 0.5848760604858398, "answer_score": null, "sibling_qid": "KOL-2026-01-4079-Q007", "sibling_text": "filtration of turbine oil", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Turbine Oil Filtration — Arrangements and Checks", "cross_family": false }, { "answer_id": "LOF-359-006", "score": 0.5845500826835632, "sibling_score": 0.5845500826835632, "answer_score": 0.4516016125679016, "sibling_qid": "MUM-2023-09-2192-Q004", "sibling_text": "me lube oil filter opened for cleaning n metal particles found wat actions 2 3 more questions dont remember", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "Metal Particles Found in ME Lube-Oil Filter — Immediate Actions", "cross_family": false } ] }, { "qid": "NOI-2026-09-0008-Q006", "text": "FROM WHICH COMPONENT IN ENGINE YOU ARE GETTING FERROUS MATERIAL AND WHAT MATERIAL?", "family": "Status & Introduction", "subtopic": "Type of Engine", "tid": "NOI-2026-09-0008", "tray": "new", "candidates": [ { "answer_id": "MATPROP-A-003", "score": 0.585346519947052, "sibling_score": 0.585346519947052, "answer_score": null, "sibling_qid": "KOC-2026-08-2155-Q004", "sibling_text": "cast iron and composition", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Cast iron: grey, white, nodular; versus cast steel", "cross_family": true }, { "answer_id": "SGB-212-002", "score": 0.5596176385879517, "sibling_score": 0.5596176385879517, "answer_score": null, "sibling_qid": "KOL-2017-07-3077-Q004", "sibling_text": "composition of stainless steel use in engine room", "sibling_family": "NDT & Material Testing", "via": "sibling", "answer_title": "Stainless steel — composition and the role of Cr, Ni, C", "cross_family": true }, { "answer_id": "CRANK-217-001", "score": 0.5595138669013977, "sibling_score": 0.5595138669013977, "answer_score": null, "sibling_qid": "MUM-2026-05-3266-Q006", "sibling_text": "material of crankshaft", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Crankshaft types and how the type is identified", "cross_family": true } ] }, { "qid": "NOI-2026-09-0008-Q012", "text": "PURIFIER DRIVE?", "family": "Purifier & Centrifuges", "subtopic": "Purifier Operation / Bowl", "tid": "NOI-2026-09-0008", "tray": "new", "candidates": [ { "answer_id": "PURIF-172-006", "score": 0.6241223812103271, "sibling_score": 0.6241223812103271, "answer_score": null, "sibling_qid": "MUM-2025-07-2330-Q005", "sibling_text": "purifier operation", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Operation, types, throughput & 24V control loss", "cross_family": false }, { "answer_id": "PUR-OPS-P01-005", "score": 0.6157737374305725, "sibling_score": 0.6157737374305725, "answer_score": null, "sibling_qid": "KOL-2018-08-1861-Q001", "sibling_text": "paring disc y provided in purifier what it does everything", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "Internal control components — paring disc, level ring, pilot valves, nozzles and seals", "cross_family": false }, { "answer_id": "PUR-BOWL-P03-FINAL-1-001", "score": 0.6038947105407715, "sibling_score": 0.6038947105407715, "answer_score": 0.43579517006874086, "sibling_qid": "CHE-2026-05-0605-Q004", "sibling_text": "purifier disc stack", "sibling_family": "Purifier & Centrifuges", "via": "sibling", "answer_title": "1. Disc Stack, Separation Zone and What the Purifier Removes", "cross_family": false } ] }, { "qid": "NOI-2026-09-0009-Q012", "text": "PI ratio?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Hot Corrosion", "tid": "NOI-2026-09-0009", "tray": "new", "candidates": [ { "answer_id": "PI-211-001", "score": 0.6073929071426392, "sibling_score": 0.6073929071426392, "answer_score": null, "sibling_qid": "KOL-2025-10-4065-Q009", "sibling_text": "pi test value formula", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "What polarization index is, why we use it, and the value expected", "cross_family": true }, { "answer_id": "PI-211-002", "score": 0.5873223543167114, "sibling_score": 0.5873223543167114, "answer_score": null, "sibling_qid": "KOL-2026-08-4162-Q016S2", "sibling_text": "what is pi test it s value", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "How the PI test is carried out — equipment, procedure, leakage-current behaviour", "cross_family": true }, { "answer_id": "PI-211-004", "score": 0.5312600135803223, "sibling_score": 0.5312600135803223, "answer_score": 0.36780273318290707, "sibling_qid": "KOL-2025-10-2890-Q001", "sibling_text": "pi dar", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "PI and DAR — how they relate, their purpose, and acceptable values", "cross_family": true } ] }, { "qid": "NOI-2026-09-0010-Q003", "text": "How the arrangement of detectors?", "family": "SOLAS - Fire Safety", "subtopic": "Fire Detector Type", "tid": "NOI-2026-09-0010", "tray": "new", "candidates": [ { "answer_id": "FSH-DET-001", "score": 0.5946797728538513, "sibling_score": 0.5946797728538513, "answer_score": null, "sibling_qid": "KOL-2025-10-1107-Q006", "sibling_text": "detectors working", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Types of fire, smoke, heat and flame detectors used onboard", "cross_family": false }, { "answer_id": "FIRE-P01-04", "score": 0.5865569710731506, "sibling_score": 0.5865569710731506, "answer_score": null, "sibling_qid": "KOC-2024-03-0317-Q002", "sibling_text": "hypermist draw and explain why two detectors which are all area it covers", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist — protected areas, machinery coverage, and why it is not whole-engine-room flooding", "cross_family": false }, { "answer_id": "FIRE-P01-01", "score": 0.529570460319519, "sibling_score": 0.529570460319519, "answer_score": null, "sibling_qid": "KOC-2022-09-0093-Q001", "sibling_text": "draw and explain hypermist system purpose of 2 detectors", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "Hypermist / water-mist system — draw and explain the machinery-space arrangement and normal working", "cross_family": false } ] }, { "qid": "NOI-2026-09-0012-Q001", "text": "Which attempt? Type of ship sailed?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "NOI-2026-09-0012", "tray": "review", "candidates": [ { "answer_id": "ANCH-C-006", "score": 0.6990254521369934, "sibling_score": 0.6990254521369934, "answer_score": null, "sibling_qid": "CHE-2026-04-0152-Q001", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Anchor / chain not lowering — checks", "cross_family": false }, { "answer_id": "ISM-ELEM-001", "score": 0.6985287070274353, "sibling_score": 0.6985287070274353, "answer_score": null, "sibling_qid": "MUM-2025-08-0402-Q002", "sibling_text": "type of ship sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Objectives & purpose of the ISM Code", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.6679714322090149, "sibling_score": 0.6679714322090149, "answer_score": null, "sibling_qid": "MUM-2026-02-1280-Q001", "sibling_text": "type of ship done", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false } ] }, { "qid": "NOI-2026-09-0012-Q008", "text": "What is rudder drop? ", "family": "Steering Gear & Hydraulics", "subtopic": "Rudder Drop", "tid": "NOI-2026-09-0012", "tray": "new", "candidates": [ { "answer_id": "RUD-DROP-003", "score": 0.5552017092704773, "sibling_score": 0.5552017092704773, "answer_score": 0.30840786695480343, "sibling_qid": "CHE-2021-07-0171-Q007", "sibling_text": "rudder drop is more wat actions you take during sailing", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Rudder drop at the limit: the decision", "cross_family": false }, { "answer_id": "RUD-DROP-001", "score": 0.538468062877655, "sibling_score": 0.538468062877655, "answer_score": 0.3678847074508667, "sibling_qid": "KOL-2025-01-3742-Q007", "sibling_text": "rudder drop", "sibling_family": "Steering Gear & Hydraulics", "via": "sibling", "answer_title": "Dry-dock rudder survey: drop, clearances and inspection", "cross_family": false }, { "answer_id": "PROP-PN-C-002", "score": 0.29539528787136077, "sibling_score": null, "answer_score": 0.29539528787136077, "sibling_qid": "", "sibling_text": "propeller drop measurement and consequences drop aft stern tube bush wear down the propeller weight cantilevers on the aft bush so the shaft sinks as it wears tool the ship s own poker wear down gauge supplied at newbuilding with recorded datum dimensions always use the same tool for comparability", "sibling_family": "", "via": "answer_title", "answer_title": "Propeller drop — measurement and consequences", "cross_family": false } ] }, { "qid": "NOI-2026-09-0013-Q001", "text": "Which attempt? Function? what type of ship sailed on ? what type of engines you worked on ?", "family": "Status & Introduction", "subtopic": "", "tid": "NOI-2026-09-0013", "tray": "review", "candidates": [ { "answer_id": "ETP-344-P01-001", "score": 0.6750850677490234, "sibling_score": 0.6750850677490234, "answer_score": null, "sibling_qid": "MUM-2026-03-0998-Q001", "sibling_text": "type of ship sailed and engines details", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Measuring main-engine power (BHP) — indicated vs brake", "cross_family": false }, { "answer_id": "AE-CRP-005", "score": 0.6713824272155762, "sibling_score": 0.6713824272155762, "answer_score": null, "sibling_qid": "CHE-2026-03-0253-Q001", "sibling_text": "type of ship sailed type of engine sailed", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "AEME-DIFF-001", "score": 0.4100573018193245, "sibling_score": null, "answer_score": 0.4100573018193245, "sibling_qid": "", "sibling_text": "constructional and operational differences between main and auxiliary engine conventional direct drive case main engine usually a large slow speed 2 stroke crosshead auxiliary usually a medium speed 4 stroke trunk piston four stroke mains and diesel electric plants also exist main engine coupled to the propeller reversible or cpp for astern auxiliary drives an alternator at constant governed speed", "sibling_family": "", "via": "answer_title", "answer_title": "Constructional and operational differences between main and auxiliary engine", "cross_family": false } ] }, { "qid": "NOI-2026-09-0013-Q009", "text": "Main engine manifold red hot action? ( u r at sea)", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "Hot Corrosion", "tid": "NOI-2026-09-0013", "tray": "new", "candidates": [ { "answer_id": "SCAV-323-P01-006", "score": 0.6301604509353638, "sibling_score": 0.6301604509353638, "answer_score": null, "sibling_qid": "KOL-2018-07-1396-Q004", "sibling_text": "you are in engine control room scavenge fire has taken place how will you come to know what actions you will take factors responsible for scavenge fire if the main engine is at sea and running how you will come to know through which unit blow past is occurring", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Identifying and confirming a scavenge fire on a running engine", "cross_family": false }, { "answer_id": "EXH-T-HI-001", "score": 0.6269968748092651, "sibling_score": 0.6269968748092651, "answer_score": null, "sibling_qid": "MUM-2023-09-2193-Q007", "sibling_text": "main engine exhaust temp hi during maneuvering action", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "All units exhaust temperature high — causes and actions", "cross_family": false }, { "answer_id": "SCAV-323-P01-002", "score": 0.6148145794868469, "sibling_score": 0.6148145794868469, "answer_score": 0.4938473403453827, "sibling_qid": "MUM-2026-09-3897-Q005", "sibling_text": "when me running for 10 days sailing and suddenly scavenge space fire there in one of the unit after all repairs done engine prepared for sailing", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Fire in one unit, engine running and cannot be stopped (Malacca Strait)", "cross_family": false } ] }, { "qid": "NOI-2026-09-0016-Q002", "text": "How to select anode for ICCP?", "family": "Electrical - ICCP & Cathodic Protection", "subtopic": "Sacrificial Anode", "tid": "NOI-2026-09-0016", "tray": "new", "candidates": [ { "answer_id": "ICCP-119-P01-003", "score": 0.5952703356742859, "sibling_score": 0.5952703356742859, "answer_score": 0.39672379195690155, "sibling_qid": "MUM-2026-04-2108-Q003", "sibling_text": "how anodes is connected in iccp", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP values, impressed-current meaning, anode/cathode roles and materials", "cross_family": false }, { "answer_id": "ICCP-P02-001", "score": 0.5649036169052124, "sibling_score": 0.5649036169052124, "answer_score": 0.38448556065559386, "sibling_qid": "MUM-2026-03-2034-Q002", "sibling_text": "iccp ref anode material", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP reference cell / reference electrode — purpose, material, location, selection", "cross_family": false }, { "answer_id": "ICCP-P02-002", "score": 0.540463924407959, "sibling_score": 0.540463924407959, "answer_score": null, "sibling_qid": "MUM-2026-06-3355-Q016", "sibling_text": "where exactly is iccp anodes fitted", "sibling_family": "Electrical - ICCP & Cathodic Protection", "via": "sibling", "answer_title": "ICCP drydock checks — anodes, shields, reference cells, bonding, hull", "cross_family": false } ] }, { "qid": "NOI-2026-09-0018-Q001", "text": "What all functions and which attempt ?", "family": "Status & Introduction", "subtopic": "", "tid": "NOI-2026-09-0018", "tray": "new", "candidates": [ { "answer_id": "IMO-CODES-P03-002", "score": 0.5377376079559326, "sibling_score": 0.5377376079559326, "answer_score": null, "sibling_qid": "KOC-2026-02-0804-Q001", "sibling_text": "what all coming under this function", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "IMO overview: structure, committees, certificates, IMSAS, UI and carbon strategy", "cross_family": true }, { "answer_id": "CHK-RM-001", "score": 0.477646142244339, "sibling_score": 0.477646142244339, "answer_score": null, "sibling_qid": "KOL-2022-04-1918-Q004", "sibling_text": "chocks function types", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "What are chocks? Function, types, where fitted and how placed — which have the biggest area, and how does the bedplate connect to the hull?", "cross_family": true }, { "answer_id": "IMO-CC-P01-003", "score": 0.4762248992919922, "sibling_score": 0.4762248992919922, "answer_score": null, "sibling_qid": "KOC-2026-03-0879-Q006", "sibling_text": "msc functions", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Name the IMO Committees and Sub-Committees (MSC, MEPC, FAL …) and state their functions.", "cross_family": true } ] }, { "qid": "NOI-2026-09-0018-Q006", "text": "⁠Step by step things to add to change MC engine to MEGA engines ?", "family": "2-Stroke - Combustion, Power & Performance", "subtopic": "MC-C vs MEB Engine", "tid": "NOI-2026-09-0018", "tray": "new", "candidates": [ { "answer_id": "MCC-MEB-P02-003", "score": 0.5361203551292419, "sibling_score": 0.5361203551292419, "answer_score": 0.30511303842067716, "sibling_qid": "CHE-2026-02-0484-Q015", "sibling_text": "diff5between mc engine and me engine and many cross questions in this as i did only mc engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Conventional MC / MC-C versus electronic ME — the practical operating differences", "cross_family": false }, { "answer_id": "EGTP-P02-005", "score": 0.5108203291893005, "sibling_score": 0.5108203291893005, "answer_score": 0.31402738541364666, "sibling_qid": "CHE-2026-08-3882-Q001", "sibling_text": "difference between me and mc engine", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "MC / MC-C / ME-C and Electronically Controlled Engines", "cross_family": false }, { "answer_id": "MCC-MEB-P02-002", "score": 0.5102041363716125, "sibling_score": 0.5102041363716125, "answer_score": null, "sibling_qid": "KOL-2017-09-1325-Q002", "sibling_text": "me n mc engine differences design aspects", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "MAN B&W nomenclature — and what MC, MC-C, ME-B, ME-C actually mean", "cross_family": false } ] }, { "qid": "NOI-2026-09-0018-Q007", "text": "⁠DG crankcase under pressure , reasons ?", "family": "Refrigeration & AC", "subtopic": "HP / LP Trip", "tid": "NOI-2026-09-0018", "tray": "new", "candidates": [ { "answer_id": "OMD-005", "score": 0.6260073781013489, "sibling_score": 0.6260073781013489, "answer_score": null, "sibling_qid": "MUM-2026-03-1296-Q008", "sibling_text": "omd and crankcase relief door lifting pressure", "sibling_family": "2-Stroke - Lubrication & Bearings", "via": "sibling", "answer_title": "How will you find a hot spot in the bearings while the engine is running? What is the relationship between the OMD and the crankcase relief door lifting pressure?", "cross_family": true }, { "answer_id": "CRK-DEFL-001", "score": 0.6226179599761963, "sibling_score": 0.6226179599761963, "answer_score": null, "sibling_qid": "CHE-2026-05-0648-Q005", "sibling_text": "stresses on crank shaft not accepting any stress", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Purpose, timing and scope of crankshaft deflection", "cross_family": true }, { "answer_id": "CRD-003", "score": 0.5700298547744751, "sibling_score": 0.5700298547744751, "answer_score": null, "sibling_qid": "KOL-2021-07-3431-Q003", "sibling_text": "crankcase relief door pressure testing", "sibling_family": "2-Stroke - Crankshaft & Bedplate", "via": "sibling", "answer_title": "Testing & opening-pressure verification of crankcase relief valves", "cross_family": true } ] }, { "qid": "NOI-2026-09-0018-Q008", "text": "⁠What all things to manage BOG on LNG ships ?", "family": "Cargo Ops - Gas Carriers", "subtopic": "IGC / Gas Carrier Safety", "tid": "NOI-2026-09-0018", "tray": "new", "candidates": [ { "answer_id": "BLEVE-BOG-004", "score": 0.6254914402961731, "sibling_score": 0.6254914402961731, "answer_score": 0.45612205266952516, "sibling_qid": "KOL-2026-09-4311-Q002", "sibling_text": "you are on lng you know what is bog how we control bog vapour header pressure control ways i was saying what is pressure generated in tanks where you use on ship mostly", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "How are LNG boil-off, tank pressure and cargo temperature controlled?", "cross_family": false }, { "answer_id": "LPG-LNG-002", "score": 0.606647789478302, "sibling_score": 0.606647789478302, "answer_score": 0.4670684039592743, "sibling_qid": "KOL-2026-02-1166-Q002", "sibling_text": "precautions while carrying out lng bunkering", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "LNG bunkering – preparation and procedure", "cross_family": false }, { "answer_id": "LPG-LNG-005", "score": 0.6004282832145691, "sibling_score": 0.6004282832145691, "answer_score": null, "sibling_qid": "KOL-2022-04-0628-Q001", "sibling_text": "type of ship done lpg 2 hydrate formation and how to prevent 3 problem with carrying lpg cargo there 6 tell the names same as in dieseship written notes 4 mob marker 5 kn curve", "sibling_family": "Cargo Ops - Gas Carriers", "via": "sibling", "answer_title": "Hydrate formation in LPG cargo – prevention and treatment", "cross_family": false } ] }, { "qid": "NOI-2026-09-0019-Q005", "text": "Onboard AC system ?", "family": "Cargo Ops - Tankers", "subtopic": "IG System", "tid": "NOI-2026-09-0019", "tray": "new", "candidates": [ { "answer_id": "CFZ-330-001", "score": 0.5917098522186279, "sibling_score": 0.5917098522186279, "answer_score": null, "sibling_qid": "MUM-2026-04-2666-Q008", "sibling_text": "ac compressor comfort zone", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "Define the comfort zone and state its parameters and ranges", "cross_family": true }, { "answer_id": "COT-P02-01", "score": 0.5841752886772156, "sibling_score": 0.5841752886772156, "answer_score": null, "sibling_qid": "MUM-2026-08-3860-Q007", "sibling_text": "ig system onboard", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Draw and explain the complete tanker inert-gas system from gas production to the cargo tanks, identifying the main plant, control and deck components.", "cross_family": false }, { "answer_id": "CAP-CTRL-002", "score": 0.5828334093093872, "sibling_score": 0.5828334093093872, "answer_score": null, "sibling_qid": "KOL-2026-09-4297-Q003", "sibling_text": "ac compressor unloaded working", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "CG-002 · How the cylinder-unloader mechanism works", "cross_family": true } ] }, { "qid": "NOI-2026-09-0019-Q006", "text": "What are the types of boiler burners and their working explanation", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Encoders", "tid": "NOI-2026-09-0019", "tray": "review", "candidates": [ { "answer_id": "BLRBURN-007", "score": 0.7146254181861877, "sibling_score": 0.7146254181861877, "answer_score": 0.5809659242630004, "sibling_qid": "MUM-2026-06-3563-Q001", "sibling_text": "cone type burner and y type burner", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "What are the types of boiler burner, and what atomising medium does each use?", "cross_family": true }, { "answer_id": "BLRBURN-002", "score": 0.689529299736023, "sibling_score": 0.689529299736023, "answer_score": null, "sibling_qid": "KOL-2022-11-1717-Q005", "sibling_text": "steam type burner", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Draw and explain the steam-assisted pressure jet burner — its advantages, disadvantages and nozzle material.", "cross_family": true }, { "answer_id": "BLRBURN-012", "score": 0.6766486167907715, "sibling_score": 0.6766486167907715, "answer_score": 0.5834318399429321, "sibling_qid": "KOL-2023-10-1757-Q001", "sibling_text": "boiler pressure jet burner superheater", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Explain the boiler pressure jet burner and the superheater.", "cross_family": true } ] }, { "qid": "NOI-2026-09-0021-Q001", "text": "Status of other oral and written ? Type of ship ? Main engine specification (i don't know why he asked for funtion 3)", "family": "Status & Introduction", "subtopic": "", "tid": "NOI-2026-09-0021", "tray": "review", "candidates": [ { "answer_id": "AE-CRP-005", "score": 0.7092605233192444, "sibling_score": 0.7092605233192444, "answer_score": null, "sibling_qid": "MUM-2026-05-3139-Q001", "sibling_text": "status of oral and written type of ship sailed container nomenclature of main and auxiliary engine", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false }, { "answer_id": "EXHV-P01-001", "score": 0.6418648958206177, "sibling_score": 0.6418648958206177, "answer_score": null, "sibling_qid": "KOC-2026-08-2106-Q001", "sibling_text": "status of written oral company type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "ENG-NOM-005", "score": 0.6341681480407715, "sibling_score": 0.6341681480407715, "answer_score": null, "sibling_qid": "KOL-2025-06-1808-Q001", "sibling_text": "first he asked indos no then status of writtens type of ships last ship engine type designation", "sibling_family": "2-Stroke - Combustion, Power & Performance", "via": "sibling", "answer_title": "Main engine model designation — full walkthrough", "cross_family": true } ] }, { "qid": "NOI-2026-09-0021-Q004", "text": "How much pressure for hydrostatic pressure test of watertight door? Type of bulkhead? ", "family": "Ship Construction & Stability", "subtopic": "Bulkhead Types", "tid": "NOI-2026-09-0021", "tray": "new", "candidates": [ { "answer_id": "HYD-602-001", "score": 0.5900217294692993, "sibling_score": 0.5900217294692993, "answer_score": 0.4622096300125122, "sibling_qid": "KOL-2021-07-1602-Q008", "sibling_text": "hydrostatic pressure test", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Explain the boiler hydraulic / hydrostatic pressure test in detail — the full procedure", "cross_family": true }, { "answer_id": "WTD-004", "score": 0.5895202159881592, "sibling_score": 0.5895202159881592, "answer_score": 0.48099217414855955, "sibling_qid": "KOC-2024-11-0449-Q005", "sibling_text": "weather tight and watertight doors and method of pressure testing", "sibling_family": "SOLAS - Watertight & Closing Appliances", "via": "sibling", "answer_title": "Watertight vs weathertight doors, and pressure/hose testing", "cross_family": true }, { "answer_id": "DBTB-A-003", "score": 0.5692358613014221, "sibling_score": 0.5692358613014221, "answer_score": 0.4574966669082641, "sibling_qid": "MUM-2026-06-3430-Q004", "sibling_text": "how to pressure test a double bottom ballast tank", "sibling_family": "Ship Construction & Stability", "via": "sibling", "answer_title": "Carrying out a double-bottom tank pressure / tank test", "cross_family": false } ] }, { "qid": "NOI-2026-09-0021-Q006", "text": "SOLAS CHAPTER- 3 in details ?", "family": "IMO Structure & Conventions", "subtopic": "SOLAS Chapters", "tid": "NOI-2026-09-0021", "tray": "new", "candidates": [ { "answer_id": "LSA-CODE-001", "score": 0.592286229133606, "sibling_score": 0.592286229133606, "answer_score": null, "sibling_qid": "KOL-2016-11-0027-Q010", "sibling_text": "solas ch 3", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "SOLAS Chapter III and the LSA Code — what each is, and how they link", "cross_family": true }, { "answer_id": "SOLAS-CH-005", "score": 0.5888042449951172, "sibling_score": 0.5888042449951172, "answer_score": 0.362247684597969, "sibling_qid": "KOC-2026-02-0804-Q003", "sibling_text": "solas chapter 3 9 15", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Combined SOLAS Chapters III, IX and XV", "cross_family": false }, { "answer_id": "SOLAS-CH-002", "score": 0.515334963798523, "sibling_score": 0.515334963798523, "answer_score": null, "sibling_qid": "KOC-2025-08-0646-Q005", "sibling_text": "explain solas chapter ii", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "SOLAS Chapter II-1 - construction, machinery and electrical installations", "cross_family": false } ] }, { "qid": "NOI-2026-09-0021-Q008", "text": "Value of hydrocarbon gases? If o2 18 % can we go inside tank or not and why?", "family": "Risk & Safety Management", "subtopic": "", "tid": "NOI-2026-09-0021", "tray": "new", "candidates": [ { "answer_id": "ESE-P01-009", "score": 0.62388676404953, "sibling_score": 0.62388676404953, "answer_score": null, "sibling_qid": "KOL-2024-11-0879-Q002", "sibling_text": "o2 content and flammability is in range for all gases is the enclosed space safe to enter", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "Atmosphere checks, gases to test and safe entry limits", "cross_family": false }, { "answer_id": "ESE-P02-002", "score": 0.5847572088241577, "sibling_score": 0.5847572088241577, "answer_score": null, "sibling_qid": "KOC-2025-10-1583-Q008", "sibling_text": "enclosed space entry what all gas u check and values how o2analyser works", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "ESE-P02-02. Oxygen analyser: working principle and calibration", "cross_family": false }, { "answer_id": "ESE-P01-010", "score": 0.5834024548530579, "sibling_score": 0.5834024548530579, "answer_score": null, "sibling_qid": "KOC-2024-11-0445-Q006", "sibling_text": "gas limits for tanker entry lower and upper limits of oxygen", "sibling_family": "Risk & Safety Management", "via": "sibling", "answer_title": "Oxygen percentage limits for enclosed-space entry", "cross_family": false } ] }, { "qid": "NOI-2026-09-0022-Q004", "text": "Cofferdam FRAMO tank ?", "family": "Cargo Ops - Gas Carriers", "subtopic": "Independent Tank Type", "tid": "NOI-2026-09-0022", "tray": "new", "candidates": [ { "answer_id": "COT-07", "score": 0.5940730571746826, "sibling_score": 0.5940730571746826, "answer_score": null, "sibling_qid": "MUM-2024-07-0181-Q003", "sibling_text": "strengthening arrangement for product tanker tanks type of frames spacing between frames", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Oil-tanker cargo-tank construction and strengthening", "cross_family": true }, { "answer_id": "BHD-TYPE-A-003", "score": 0.5329289436340332, "sibling_score": 0.5329289436340332, "answer_score": null, "sibling_qid": "MUM-2026-04-2992-Q005", "sibling_text": "why transverse frame in tank rather on deck", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Tanker and cargo-tank bulkheads — transverse and longitudinal arrangement", "cross_family": true }, { "answer_id": "FLR-WFB-P01-001", "score": 0.5297325849533081, "sibling_score": 0.5297325849533081, "answer_score": 0.42813442647457123, "sibling_qid": "KOL-2025-03-0920-Q003", "sibling_text": "db tank construction what is floor", "sibling_family": "", "via": "sibling", "answer_title": "Floors — what they are, the types, and where they are fitted", "cross_family": false } ] }, { "qid": "NOI-2026-09-0022-Q005", "text": "EIAPP ?", "family": "MARPOL - Annex VI (Air & GHG)", "subtopic": "EIAPP", "tid": "NOI-2026-09-0022", "tray": "review", "candidates": [ { "answer_id": "EIAPP-600-006", "score": 0.709639847278595, "sibling_score": 0.709639847278595, "answer_score": 0.3309944629669189, "sibling_qid": "KOL-2024-12-0899-Q001", "sibling_text": "eiapp and iapp", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is the difference between IAPP and EIAPP?", "cross_family": false }, { "answer_id": "AVICERT-004", "score": 0.6606776714324951, "sibling_score": 0.6606776714324951, "answer_score": null, "sibling_qid": "KOL-2026-01-1157-Q003", "sibling_text": "iapp eiapp", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "Differentiate between the IAPP and EIAPP certificates: purpose, who issues each, and validity.", "cross_family": false }, { "answer_id": "EIAPP-600-001", "score": 0.6512764692306519, "sibling_score": 0.6512764692306519, "answer_score": null, "sibling_qid": "MUM-2023-09-2745-Q006", "sibling_text": "eiapp explain", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "What is the EIAPP certificate, what is it issued for, and what does it signify?", "cross_family": false } ] }, { "qid": "NOI-2026-09-0022-Q006", "text": "Lifeboat 10 year routines ?", "family": "SOLAS - LSA & Lifeboats", "subtopic": "Lifeboat", "tid": "NOI-2026-09-0022", "tray": "new", "candidates": [ { "answer_id": "LB-SURV-C-005", "score": 0.5850079655647278, "sibling_score": 0.5850079655647278, "answer_score": null, "sibling_qid": "KOC-2025-12-0763-Q008", "sibling_text": "life boat check all weekly monthly yearly and 5 yearly", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Periodic servicing intervals and the authorised service provider (MSC.402(96)); 5-yearly", "cross_family": false }, { "answer_id": "LBT-TEST-B-002", "score": 0.5811010003089905, "sibling_score": 0.5811010003089905, "answer_score": 0.3953769668936729, "sibling_qid": "MUM-2026-04-0880-Q007", "sibling_text": "lifeboat 5 yearly tests", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Annual and 5-yearly lifeboat/davit tests (the servicing regime)", "cross_family": false }, { "answer_id": "LB-SURV-C-001", "score": 0.5794607996940613, "sibling_score": 0.5794607996940613, "answer_score": null, "sibling_qid": "KOL-2018-11-0229-Q004", "sibling_text": "yearly survey for life boat", "sibling_family": "SOLAS - LSA & Lifeboats", "via": "sibling", "answer_title": "Annual thorough examination / SEQ survey of the lifeboat — scope, by whom, certificate", "cross_family": false } ] }, { "qid": "NOI-2026-09-0023-Q001", "text": "Type of ship ?", "family": "Status & Introduction", "subtopic": "Ship Type", "tid": "NOI-2026-09-0023", "tray": "review", "candidates": [ { "answer_id": "EXHV-P01-001", "score": 0.8360850214958191, "sibling_score": 0.8360850214958191, "answer_score": null, "sibling_qid": "MUM-2026-09-3960-Q001", "sibling_text": "type of ship", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Exhaust valve hydraulic actuator — operation and actuator valves", "cross_family": false }, { "answer_id": "LLST-AB-001", "score": 0.8013965487480164, "sibling_score": 0.8013965487480164, "answer_score": 0.5467735856771468, "sibling_qid": "KOC-2026-08-2114-Q005", "sibling_text": "type a and type b ships", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type A and Type B ships — how form and cargo set the freeboard", "cross_family": false }, { "answer_id": "LLST-AB-002", "score": 0.799839973449707, "sibling_score": 0.799839973449707, "answer_score": 0.5213733673095703, "sibling_qid": "KOC-2024-11-0474-Q004", "sibling_text": "a type ships", "sibling_family": "", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false } ] }, { "qid": "NOI-2026-09-0023-Q002", "text": "How many feed pump required to start for framo ? Why 2 feed pumps ?", "family": "Cargo Ops - Tankers", "subtopic": "Cargo Pump (Framo / Eductor)", "tid": "NOI-2026-09-0023", "tray": "new", "candidates": [ { "answer_id": "CPFE-583-008", "score": 0.6198914647102356, "sibling_score": 0.6198914647102356, "answer_score": 0.4112037509679794, "sibling_qid": "KOL-2025-04-2777-Q001", "sibling_text": "two framo pumps running one drawing more current reason and action as 2nd engineer", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "One pump taking more load or more current than the other", "cross_family": false }, { "answer_id": "CPFE-583-004", "score": 0.6104854941368103, "sibling_score": 0.6104854941368103, "answer_score": 0.44625894725322723, "sibling_qid": "MUM-2026-01-2533-Q002", "sibling_text": "framo room why u have 4 pumps all pumps are not required all times u only need 3 pumps then why they given 4 pumps", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "The powerpack — starting preconditions, and why more pumps than you need", "cross_family": false }, { "answer_id": "CPFE-583-005", "score": 0.5396955609321594, "sibling_score": 0.5396955609321594, "answer_score": 0.3826985672116279, "sibling_qid": "KOL-2018-12-1435-Q004", "sibling_text": "framo pump working procedure to start and stop checks before starting", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Starting and stopping a Framo pump — checks, and pressure before and after starting", "cross_family": false } ] }, { "qid": "NOI-2026-09-0023-Q006", "text": "As a 2nd engineer what will you do to convey ur message to multinationalism ?", "family": "Surveys - Statutory", "subtopic": "CSM(Continuous Machinery survey)", "tid": "NOI-2026-09-0023", "tray": "new", "candidates": [ { "answer_id": "PSC-005", "score": 0.43671396374702454, "sibling_score": 0.43671396374702454, "answer_score": 0.2798759579658508, "sibling_qid": "MUM-2023-05-0102-Q005", "sibling_text": "as a 2nd eng how will u make sure it is complied", "sibling_family": "Surveys - Statutory", "via": "sibling", "answer_title": "5. As second engineer: preparing for PSC and ensuring compliance", "cross_family": false }, { "answer_id": "EECS-007", "score": 0.4293195903301239, "sibling_score": 0.4293195903301239, "answer_score": null, "sibling_qid": "KOL-2018-08-0204-Q004", "sibling_text": "eeoi n ssemp what u do as 2nd engineer", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "07. EEDI, EEOI and SEEMP — and how each applies on board", "cross_family": true }, { "answer_id": "ISM-2E-B-002", "score": 0.4255605936050415, "sibling_score": 0.4255605936050415, "answer_score": null, "sibling_qid": "KOC-2026-03-0848-Q019", "sibling_text": "as a 2 nd engineer how you proceed", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "B2. Joining or taking over a ship and confirming ISM/SMS is followed", "cross_family": true } ] }, { "qid": "NOI-2026-09-0023-Q007", "text": "Near miss ?", "family": "ISM Code", "subtopic": "Major / Minor NC", "tid": "NOI-2026-09-0023", "tray": "new", "candidates": [ { "answer_id": "ISMNC-004", "score": 0.49180367588996887, "sibling_score": 0.49180367588996887, "answer_score": null, "sibling_qid": "MUM-2026-06-3361-Q008", "sibling_text": "nc mnc observation", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Differentiate between an observation and a non-conformity under the ISM Code.", "cross_family": false }, { "answer_id": "ISMNC-005", "score": 0.47624295949935913, "sibling_score": 0.47624295949935913, "answer_score": null, "sibling_qid": "KOL-2025-04-0931-Q012", "sibling_text": "example for major non confirmity", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "Give examples of a non-conformity and of a major non-conformity.", "cross_family": false }, { "answer_id": "RCA-INC-002", "score": 0.4737420380115509, "sibling_score": 0.4737420380115509, "answer_score": 0.3644183561205864, "sibling_qid": "KOL-2020-02-0385-Q005", "sibling_text": "what do you mean by a near miss and how is it different from an accident if you have a near miss on board what are the proper steps to be taken in order for it not to happen again answer with respect to ism code", "sibling_family": "ISM Code", "via": "sibling", "answer_title": "RCA-INC-02 — Near miss — what it is, how it differs from an accident, and what to do about one on board", "cross_family": false } ] }, { "qid": "NOI-2026-09-0024-Q008", "text": "SOLAS 12 Details?", "family": "IMO Structure & Conventions", "subtopic": "SOLAS Chapters", "tid": "NOI-2026-09-0024", "tray": "new", "candidates": [ { "answer_id": "SOLAS12-C-001", "score": 0.5721197724342346, "sibling_score": 0.5721197724342346, "answer_score": 0.28999719619750974, "sibling_qid": "MUM-2026-09-3983-Q002", "sibling_text": "solas chapter 12 full", "sibling_family": "IMO Structure & Conventions", "via": "sibling", "answer_title": "Explain SOLAS Chapter XII for bulk carriers — oral-exam overview", "cross_family": false }, { "answer_id": "SOLAS12-BC-B-002", "score": 0.555356502532959, "sibling_score": 0.555356502532959, "answer_score": 0.30437810719013214, "sibling_qid": "KOC-2024-08-0374-Q007", "sibling_text": "solas chapter 12 how many and contents", "sibling_family": "", "via": "sibling", "answer_title": "SOLAS Chapter XII — the 14 regulations (list)", "cross_family": false }, { "answer_id": "SOLAS-OVW-010", "score": 0.5492067337036133, "sibling_score": 0.5492067337036133, "answer_score": 0.2758549630641937, "sibling_qid": "KOL-2025-12-4072-Q005", "sibling_text": "solas ch12 full details", "sibling_family": "", "via": "sibling", "answer_title": "SOLAS Chapter XII — additional safety measures for bulk carriers", "cross_family": false } ] }, { "qid": "NOI-2026-09-0025-Q001", "text": "Which ship ? Which company? Where are you located right now", "family": "Status & Introduction", "subtopic": "", "tid": "NOI-2026-09-0025", "tray": "review", "candidates": [ { "answer_id": "LLST-AB-002", "score": 0.665012538433075, "sibling_score": 0.665012538433075, "answer_score": null, "sibling_qid": "MUM-2026-09-3912-Q001", "sibling_text": "company name type of ships native place", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "Type B-60 and B-100 ships — meaning, difference, basis and examples", "cross_family": false }, { "answer_id": "SEEMP-123-B-002", "score": 0.5506561994552612, "sibling_score": 0.5506561994552612, "answer_score": null, "sibling_qid": "KOL-2021-01-0463-Q006", "sibling_text": "type of ship you sailed and where is seemp container vessel", "sibling_family": "MARPOL - Annex VI (Air & GHG)", "via": "sibling", "answer_title": "SEEMP in practice — implementation and energy-efficiency measures", "cross_family": true }, { "answer_id": "AE-CRP-005", "score": 0.5462722778320312, "sibling_score": 0.5462722778320312, "answer_score": null, "sibling_qid": "MUM-2026-05-3248-Q001", "sibling_text": "introduction sea time company pre sea ship type engine type me", "sibling_family": "Status & Introduction", "via": "sibling", "answer_title": "AE connecting-rod bolts — checks, renewal and why they fail", "cross_family": false } ] }, { "qid": "NOI-2026-09-0025-Q002", "text": "Goog valve ?", "family": "Boilers - Safety & Survey", "subtopic": "Water Test (Chloride / pH / Phosphate)", "tid": "NOI-2026-09-0025", "tray": "new", "candidates": [ { "answer_id": "TEV-TXV-002", "score": 0.5593870878219604, "sibling_score": 0.5593870878219604, "answer_score": null, "sibling_qid": "CHE-2026-09-3901-Q003", "sibling_text": "tev valve", "sibling_family": "Refrigeration & AC", "via": "sibling", "answer_title": "TEV / TXV — purpose, construction, location and working", "cross_family": true }, { "answer_id": "MAST-PVA-002", "score": 0.5245930552482605, "sibling_score": 0.5245930552482605, "answer_score": null, "sibling_qid": "MUM-2026-09-3894-Q013", "sibling_text": "pv valve", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "P/V valve vs P/V breaker — function, location and difference", "cross_family": false }, { "answer_id": "AUC-P03-04", "score": 0.524274468421936, "sibling_score": 0.524274468421936, "answer_score": null, "sibling_qid": "MUM-2026-09-3959-Q005", "sibling_text": "valve positioner", "sibling_family": "Boilers - Safety & Survey", "via": "sibling", "answer_title": "Control-valve positioner — function and calibration of a pneumatic actuator/positioner", "cross_family": false } ] }, { "qid": "NOI-2026-09-0025-Q003", "text": "STC on framo ?", "family": "Other Conventions", "subtopic": "STCW / Manila Amendments", "tid": "NOI-2026-09-0025", "tray": "new", "candidates": [ { "answer_id": "STCW-MAN-001", "score": 0.45649582147598267, "sibling_score": 0.45649582147598267, "answer_score": null, "sibling_qid": "MUM-2025-07-0362-Q001", "sibling_text": "what is stc", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "What is STCW, why did it come about, and what are its principles?", "cross_family": false }, { "answer_id": "CPFE-583-001", "score": 0.40386223793029785, "sibling_score": 0.40386223793029785, "answer_score": null, "sibling_qid": "MUM-2026-03-2642-Q002", "sibling_text": "framo system", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "The Framo system — what it is, how it works, and the driving mechanism", "cross_family": true }, { "answer_id": "STCW-MAN-002", "score": 0.36806750297546387, "sibling_score": 0.36806750297546387, "answer_score": null, "sibling_qid": "KOC-2024-11-0455-Q005", "sibling_text": "stcw", "sibling_family": "Other Conventions", "via": "sibling", "answer_title": "Name the chapters of the STCW Convention and explain them.", "cross_family": false } ] }, { "qid": "NOI-2026-09-0025-Q006", "text": "Idol running pressure ?", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "NOI-2026-09-0025", "tray": "new", "candidates": [ { "answer_id": "PPT-BF060-001", "score": 0.4912481904029846, "sibling_score": 0.4912481904029846, "answer_score": null, "sibling_qid": "MUM-2026-02-2580-Q007", "sibling_text": "how much pressure", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Pressure testing a piston — the procedure, and the test pressure", "cross_family": false }, { "answer_id": "PRING-B-005", "score": 0.4734351336956024, "sibling_score": 0.4734351336956024, "answer_score": null, "sibling_qid": "MUM-2026-03-1004-Q007", "sibling_text": "running in", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Running-in & latest developments", "cross_family": false }, { "answer_id": "MR-DS-PV-B-006", "score": 0.46984758973121643, "sibling_score": 0.46984758973121643, "answer_score": null, "sibling_qid": "KOC-2023-10-0238-Q002", "sibling_text": "ig deck line pressure", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "6. Deck isolating valve, deck relief/safety devices, and cargo-tank pressure", "cross_family": true } ] }, { "qid": "NOI-2026-09-0025-Q007", "text": "What happens to hydraulic energy if framo running idol ?", "family": "2-Stroke - Components (Other)", "subtopic": "Cylinder Liner & Liner Wear", "tid": "NOI-2026-09-0025", "tray": "new", "candidates": [ { "answer_id": "CPFE-583-010", "score": 0.47491687536239624, "sibling_score": 0.47491687536239624, "answer_score": null, "sibling_qid": "MUM-2026-03-1294-Q003", "sibling_text": "what is the what type of hydraulic pump is used in framo system", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "The hydraulic circuit — feed pump, HP and LP lines, filters", "cross_family": true }, { "answer_id": "CPFE-583-012", "score": 0.4596390426158905, "sibling_score": 0.4596390426158905, "answer_score": null, "sibling_qid": "MUM-2022-12-0071-Q002", "sibling_text": "what the unique thing done when using framo pump and not on other reason of hydraulic oil leaking", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Seal arrangement, cofferdam, and how leakage is detected", "cross_family": true }, { "answer_id": "CPFE-583-007", "score": 0.44959500432014465, "sibling_score": 0.44959500432014465, "answer_score": null, "sibling_qid": "MUM-2022-09-2696-Q004", "sibling_text": "1 framo system type of pump hydraulic pressure not coming what to do", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "Pressure not building — and purging the hydraulic system", "cross_family": true } ] }, { "qid": "NOI-2026-09-0026-Q002", "text": "what is IP converter and its working ?What is the pressure range ?", "family": "Instrumentation & Controls", "subtopic": "Pressure Switch", "tid": "NOI-2026-09-0026", "tray": "new", "candidates": [ { "answer_id": "TPL-SENS-A-002", "score": 0.5042166709899902, "sibling_score": 0.5042166709899902, "answer_score": 0.40754784047603604, "sibling_qid": "KOL-2025-12-3899-Q003", "sibling_text": "pressure transducer working", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Pressure transmitter / transducer / switch working and calibration", "cross_family": true }, { "answer_id": "IGAT-583-003", "score": 0.49845147132873535, "sibling_score": 0.49845147132873535, "answer_score": null, "sibling_qid": "KOC-2026-03-2099-Q005", "sibling_text": "ig alarams and trips values of pressures", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "What are the set values for the IG system alarms and trips — IG line high, low and low-low pressure, oxygen content, PV valve and breaker pressures?", "cross_family": true }, { "answer_id": "MAST-PVA-004", "score": 0.4728803336620331, "sibling_score": 0.4728803336620331, "answer_score": null, "sibling_qid": "KOC-2023-01-0144-Q006", "sibling_text": "convert the cargo tank pressure into to mm of water", "sibling_family": "Cargo Ops - Tankers", "via": "sibling", "answer_title": "P/V valve & P/V breaker — pressure/vacuum settings and the basis", "cross_family": true } ] }, { "qid": "NOI-2026-09-0026-Q003", "text": "what is A to D converter?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Inverter / VFD", "tid": "NOI-2026-09-0026", "tray": "new", "candidates": [ { "answer_id": "VFD-INV-P02-005", "score": 0.49969491362571716, "sibling_score": 0.49969491362571716, "answer_score": 0.3016873449087143, "sibling_qid": "CHE-2026-04-0379-Q001", "sibling_text": "converter", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "How do rectifier, DC link and inverter stages convert AC to DC and DC to AC?", "cross_family": false }, { "answer_id": "EPC-P01-04", "score": 0.46486490964889526, "sibling_score": 0.46486490964889526, "answer_score": null, "sibling_qid": "KOL-2023-07-3618-Q001", "sibling_text": "diode ac to dc conversion mechanism explain detail", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Half-wave and full-wave rectification — working, waveforms and comparison", "cross_family": false }, { "answer_id": "XFMR-THY-D-001", "score": 0.42846328020095825, "sibling_score": 0.42846328020095825, "answer_score": null, "sibling_qid": "KOL-2017-12-2161-Q003", "sibling_text": "explain transformer converter inverter transmitter", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Transformer — principle and working", "cross_family": false } ] }, { "qid": "NOI-2026-09-0026-Q004", "text": "what is the purpose of 250 ohm resistor in a transducer ?", "family": "Cargo Ops - Tankers", "subtopic": "IG System", "tid": "NOI-2026-09-0026", "tray": "new", "candidates": [ { "answer_id": "AUC-P03-04", "score": 0.566423773765564, "sibling_score": 0.566423773765564, "answer_score": null, "sibling_qid": "MUM-2023-11-1415-Q003", "sibling_text": "sipart working resistor in transducer why", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Control-valve positioner — function and calibration of a pneumatic actuator/positioner", "cross_family": true }, { "answer_id": "AUC-SEN-05", "score": 0.407297283411026, "sibling_score": 0.407297283411026, "answer_score": null, "sibling_qid": "KOL-2022-01-2528-Q003", "sibling_text": "thermistor as an amplifier", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Thermistor — principle, NTC and PTC behaviour, and shipboard applications", "cross_family": true }, { "answer_id": "EARTH-NEU-02A-001", "score": 0.404108464717865, "sibling_score": 0.404108464717865, "answer_score": null, "sibling_qid": "CHE-2026-04-0519-Q006", "sibling_text": "earthed neutral system why resistor what is the value", "sibling_family": "", "via": "sibling", "answer_title": "Earthed (neutral-earth) system — what it is, why we use it, pros and cons", "cross_family": false } ] }, { "qid": "NOI-2026-09-0026-Q006", "text": "Sipart controller application onboard ships. ?Where is 90 and 33 degree configuration used ?", "family": "NDT & Material Testing", "subtopic": "Impact / Charpy", "tid": "NOI-2026-09-0026", "tray": "new", "candidates": [ { "answer_id": "AUC-P03-04", "score": 0.5160481929779053, "sibling_score": 0.5160481929779053, "answer_score": null, "sibling_qid": "MUM-2023-05-2170-Q003", "sibling_text": "separt there is positioner having setting 33 and 90 degree what is that", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Control-valve positioner — function and calibration of a pneumatic actuator/positioner", "cross_family": true }, { "answer_id": "MIB-B-002", "score": 0.47260531783103943, "sibling_score": 0.47260531783103943, "answer_score": null, "sibling_qid": "KOC-2022-10-1202-Q005", "sibling_text": "ship security alert system vdr data s 9 igbt and scr difference 10 vfd paul sir boiler water level controller widas sensor working princple location testing", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Comparing IGBT, MOSFET, BJT and the thyristor family (SCR/GTO)", "cross_family": true }, { "answer_id": "A60-BCLASS-002", "score": 0.4654548764228821, "sibling_score": 0.4654548764228821, "answer_score": null, "sibling_qid": "KOL-2016-09-0014-Q003", "sibling_text": "about a 60 and b 30 and c bulkhead where use onship", "sibling_family": "SOLAS - Fire Safety", "via": "sibling", "answer_title": "A, B and C class divisions — and where they are used", "cross_family": true } ] }, { "qid": "NOI-2026-09-0027-Q003", "text": "What is latching relay ?", "family": "Electrical - Protection & Relays", "subtopic": "Protection / Relays", "tid": "NOI-2026-09-0027", "tray": "new", "candidates": [ { "answer_id": "PRL-594-002", "score": 0.576533854007721, "sibling_score": 0.576533854007721, "answer_score": 0.44123399555683135, "sibling_qid": "KOL-2025-09-2864-Q007", "sibling_text": "electrical relay", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "What is a relay, what is it for, and what are its types?", "cross_family": false }, { "answer_id": "PRL-594-003", "score": 0.5562487244606018, "sibling_score": 0.5562487244606018, "answer_score": 0.42319839000701903, "sibling_qid": "KOC-2025-12-1662-Q008", "sibling_text": "type of spring in the relay", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "What type of spring is used in a relay?", "cross_family": false }, { "answer_id": "PRL-594-001", "score": 0.5451046228408813, "sibling_score": 0.5451046228408813, "answer_score": 0.396707908809185, "sibling_qid": "KOC-2023-10-1284-Q001", "sibling_text": "relay vs contactor", "sibling_family": "Electrical - Protection & Relays", "via": "sibling", "answer_title": "What is the difference between a relay and a contactor?", "cross_family": false } ] }, { "qid": "NOI-2026-09-0027-Q006", "text": "Difference in Steering gear motor and MCSW pump motor ?", "family": "Pumps - Centrifugal & PD", "subtopic": "Gear Pump", "tid": "NOI-2026-09-0027", "tray": "review", "candidates": [ { "answer_id": "HSAP-583-A-006", "score": 0.6959047317504883, "sibling_score": 0.6959047317504883, "answer_score": 0.5301726818084717, "sibling_qid": "MUM-2026-02-1979-Q005", "sibling_text": "steering gear pump motor", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Which pumps go where: steering gear, deck machinery, main engine hydraulics", "cross_family": false }, { "answer_id": "VDP-004", "score": 0.6380003690719604, "sibling_score": 0.6380003690719604, "answer_score": null, "sibling_qid": "KOL-2021-08-1614-Q003", "sibling_text": "steering gear crosshead arrangement types of variable delivery pumps details", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Variable delivery pumps in the steering-gear crosshead arrangement", "cross_family": false }, { "answer_id": "HSAP-B-001", "score": 0.6374671459197998, "sibling_score": 0.6374671459197998, "answer_score": null, "sibling_qid": "KOL-2026-05-4192-Q004", "sibling_text": "swash plate pump in steering gear", "sibling_family": "Pumps - Centrifugal & PD", "via": "sibling", "answer_title": "Axial piston / swash-plate pump — construction, working, swash-plate function and maximum angle, delivery and direction control", "cross_family": false } ] }, { "qid": "NOI-2026-09-0027-Q007", "text": "⁠ Adc convertor ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Cycloconverter", "tid": "NOI-2026-09-0027", "tray": "new", "candidates": [ { "answer_id": "VFD-INV-P02-005", "score": 0.5359382033348083, "sibling_score": 0.5359382033348083, "answer_score": 0.32835223674774167, "sibling_qid": "CHE-2026-03-0131-Q011", "sibling_text": "converter", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "How do rectifier, DC link and inverter stages convert AC to DC and DC to AC?", "cross_family": false }, { "answer_id": "EPC-P01-04", "score": 0.49181264638900757, "sibling_score": 0.49181264638900757, "answer_score": null, "sibling_qid": "KOL-2023-07-3618-Q001", "sibling_text": "diode ac to dc conversion mechanism explain detail", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Half-wave and full-wave rectification — working, waveforms and comparison", "cross_family": false }, { "answer_id": "EPC-P01-03", "score": 0.48552799224853516, "sibling_score": 0.48552799224853516, "answer_score": null, "sibling_qid": "KOL-2026-04-2983-Q001S3", "sibling_text": "rectifier and how it convert ac to dc", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Rectifiers — definition, types, and where they are used on board", "cross_family": false } ] }, { "qid": "NOI-2026-09-0028-Q001", "text": "What is IP convertor ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Cycloconverter", "tid": "NOI-2026-09-0028", "tray": "new", "candidates": [ { "answer_id": "VFD-INV-P02-005", "score": 0.5188776254653931, "sibling_score": 0.5188776254653931, "answer_score": 0.2248724654316902, "sibling_qid": "CHE-2026-04-0379-Q001", "sibling_text": "converter", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "How do rectifier, DC link and inverter stages convert AC to DC and DC to AC?", "cross_family": false }, { "answer_id": "IP-RATING-001", "score": 0.43976402282714844, "sibling_score": 0.43976402282714844, "answer_score": null, "sibling_qid": "CHE-2026-03-0120-Q006", "sibling_text": "what is ip", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "IP (ingress protection) rating — the two digits, why it is needed, and how it is kept intact on ship equipment", "cross_family": true }, { "answer_id": "IP-ENCL-001", "score": 0.43976396322250366, "sibling_score": 0.43976396322250366, "answer_score": null, "sibling_qid": "MUM-2025-05-1505-Q009", "sibling_text": "what is ip", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "IP rating of motors — what the numbers mean", "cross_family": true } ] }, { "qid": "NOI-2026-09-0028-Q002", "text": "Calibration of IP convertor ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Cycloconverter", "tid": "NOI-2026-09-0028", "tray": "new", "candidates": [ { "answer_id": "MICR-003", "score": 0.590952455997467, "sibling_score": 0.590952455997467, "answer_score": null, "sibling_qid": "MUM-2026-03-2636-Q002", "sibling_text": "how to make sure calibration is correct", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Cylinder liner calibration with the inside micrometer", "cross_family": false }, { "answer_id": "CYL-LINER-P01-001", "score": 0.538467526435852, "sibling_score": 0.538467526435852, "answer_score": null, "sibling_qid": "KOL-2024-01-3666-Q002", "sibling_text": "2 liner calibration", "sibling_family": "2-Stroke - Components (Other)", "via": "sibling", "answer_title": "Carrying out main-engine liner calibration (gauging)", "cross_family": true }, { "answer_id": "MICR-002", "score": 0.5372699499130249, "sibling_score": 0.5372699499130249, "answer_score": 0.36556911170482637, "sibling_qid": "MUM-2026-02-2580-Q003", "sibling_text": "tool how to calibrate it", "sibling_family": "Gauges & Tools", "via": "sibling", "answer_title": "Zero setting, calibration, error check and trueness", "cross_family": true } ] }, { "qid": "NOI-2026-09-0028-Q003", "text": "How to test IP converter ? ", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Inverter / VFD", "tid": "NOI-2026-09-0028", "tray": "new", "candidates": [ { "answer_id": "IP-ENCL-005", "score": 0.39563649892807007, "sibling_score": 0.39563649892807007, "answer_score": null, "sibling_qid": "KOC-2024-06-1366-Q004", "sibling_text": "ip 65 explain what s the third digit", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "The IP digits, and the so-called ‘third digit’ or letter", "cross_family": true }, { "answer_id": "IP-ENCL-004", "score": 0.38973525166511536, "sibling_score": 0.38973525166511536, "answer_score": null, "sibling_qid": "KOC-2026-10-2222-Q003", "sibling_text": "ip rating explain ip 65 is accepted", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "Interpreting a stated code — IP55, IP56, IP65, IP66", "cross_family": true }, { "answer_id": "IP-ENCL-001", "score": 0.38917309045791626, "sibling_score": 0.38917309045791626, "answer_score": null, "sibling_qid": "KOL-2017-06-2133-Q003", "sibling_text": "type of ip", "sibling_family": "Electrical - Motors & Starters", "via": "sibling", "answer_title": "IP rating of motors — what the numbers mean", "cross_family": true } ] }, { "qid": "NOI-2026-09-0028-Q004", "text": "What is smart transmitter ?", "family": "Boilers - Operations & Firing", "subtopic": "DP Transmitter", "tid": "NOI-2026-09-0028", "tray": "new", "candidates": [ { "answer_id": "AUC-PLC-01", "score": 0.6070230007171631, "sibling_score": 0.6070230007171631, "answer_score": 0.4233436182141304, "sibling_qid": "MUM-2023-05-1386-Q006", "sibling_text": "smart transducers transmitters what are they they have hart protocol", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "HART protocol and smart transmitters — 4–20 mA plus digital", "cross_family": true }, { "answer_id": "DP-TX-001", "score": 0.5345984101295471, "sibling_score": 0.5345984101295471, "answer_score": null, "sibling_qid": "KOL-2018-12-1865-Q002", "sibling_text": "dp transmitter", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "DP cell / DP transmitter — working principle, construction and signal", "cross_family": false }, { "answer_id": "TPL-SENS-B-002", "score": 0.5069296360015869, "sibling_score": 0.5069296360015869, "answer_score": 0.3603100672364235, "sibling_qid": "KOL-2026-04-2052-Q006", "sibling_text": "transducer and transmitter", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Sensors, transducers & transmitters — and why 4–20 mA", "cross_family": true } ] }, { "qid": "NOI-2026-09-0028-Q006", "text": "How smart transmitter measures the flow ?", "family": "Boilers - Operations & Firing", "subtopic": "DP Transmitter", "tid": "NOI-2026-09-0028", "tray": "review", "candidates": [ { "answer_id": "DP-TX-004", "score": 0.7088984251022339, "sibling_score": 0.7088984251022339, "answer_score": 0.4628247916698456, "sibling_qid": "KOC-2024-03-1340-Q014", "sibling_text": "flow measurement electrically", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "Differential-pressure flowmeter — principle, types and square-root extraction", "cross_family": false }, { "answer_id": "DP-TX-001", "score": 0.6265159249305725, "sibling_score": 0.6265159249305725, "answer_score": null, "sibling_qid": "KOC-2024-07-1370-Q004", "sibling_text": "dp transmitter flometer circuit diagram", "sibling_family": "Boilers - Operations & Firing", "via": "sibling", "answer_title": "DP cell / DP transmitter — working principle, construction and signal", "cross_family": false }, { "answer_id": "TPL-SENS-B-004", "score": 0.6204339861869812, "sibling_score": 0.6204339861869812, "answer_score": null, "sibling_qid": "KOL-2025-10-2887-Q006", "sibling_text": "flow meter complete working principle how calculated", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Shipboard T/P/L instrumentation — principles & the remote-indication chain", "cross_family": true } ] }, { "qid": "NOI-2026-09-0028-Q007", "text": "What is viscosense ( smart viscosity sensor working ) ?", "family": "Electrical - Electronics & Power Conversion", "subtopic": "Encoders", "tid": "NOI-2026-09-0028", "tray": "new", "candidates": [ { "answer_id": "FHV-001", "score": 0.6360190510749817, "sibling_score": 0.6360190510749817, "answer_score": 0.4972981125116348, "sibling_qid": "KOC-2025-08-1050-Q004", "sibling_text": "viscometer working", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "01. Viscotherm / viscometer / viscosity controller", "cross_family": true }, { "answer_id": "FHV-003", "score": 0.557541012763977, "sibling_score": 0.557541012763977, "answer_score": null, "sibling_qid": "KOC-2025-03-1031-Q006", "sibling_text": "where u get information reqd for the viscosity control", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "03. Viscotherm failed or heater cannot raise temperature", "cross_family": true }, { "answer_id": "FHV-005", "score": 0.5489670634269714, "sibling_score": 0.5489670634269714, "answer_score": 0.4330578982830047, "sibling_qid": "KOC-2023-01-0130-Q007", "sibling_text": "viscotherm working viscosity index kinematic nd dynamic viscosity units", "sibling_family": "2-Stroke - Fuel Injection & Pumps", "via": "sibling", "answer_title": "05. Viscosity measurement and terminology", "cross_family": true } ] }, { "qid": "NOI-2026-09-0029-Q002", "text": "Proximity switch , location in engine room, what value it measures?", "family": "Boilers - Construction & Components", "subtopic": "Boiler Tubes", "tid": "NOI-2026-09-0029", "tray": "new", "candidates": [ { "answer_id": "PROX-SW-003", "score": 0.574777364730835, "sibling_score": 0.574777364730835, "answer_score": 0.4932977378368378, "sibling_qid": "KOL-2022-10-2613-Q001", "sibling_text": "where proximity switch is located maintenance on it wanted to listen that we do regular testing also", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Proximity switch — location, maintenance and regular testing", "cross_family": true }, { "answer_id": "PROX-SW-001", "score": 0.5285838842391968, "sibling_score": 0.5285838842391968, "answer_score": 0.45222011804580686, "sibling_qid": "MUM-2025-11-1747-Q002", "sibling_text": "proximity switch and its principal", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Proximity switch / sensor — what it is, working principle, types and where fitted", "cross_family": true }, { "answer_id": "REV-PROC-001", "score": 0.5205981731414795, "sibling_score": 0.5205981731414795, "answer_score": null, "sibling_qid": "KOL-2025-11-4071-Q002", "sibling_text": "use of proximity switch in reversing xxx", "sibling_family": "2-Stroke - Reversing & Maneuvering", "via": "sibling", "answer_title": "Reversing a reversible two-stroke main engine — the principle", "cross_family": true } ] }, { "qid": "NOI-2026-09-0029-Q003", "text": "How you teach Cadet to do Maintenance on Electrical Equipment?", "family": "Electrical - Generator & Alternator", "subtopic": "Alternator Maintenance", "tid": "NOI-2026-09-0029", "tray": "new", "candidates": [ { "answer_id": "ALT-MAINT-A-001", "score": 0.6357091665267944, "sibling_score": 0.6357091665267944, "answer_score": null, "sibling_qid": "KOL-2021-03-2433-Q001", "sibling_text": "maintenance on electrical equipment onboard", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Routine maintenance & care of a ship’s alternator", "cross_family": false }, { "answer_id": "SYNC-B-001", "score": 0.5862049460411072, "sibling_score": 0.5862049460411072, "answer_score": null, "sibling_qid": "MUM-2026-02-1964-Q001", "sibling_text": "synchroscope construction and working reversepower trip and overcurrent trip construction and testing star delta starter construction and working he wanted to hear step down transformer dp cell calibration actual blackout test infront of surveyor and precautions to taken before simulate", "sibling_family": "Electrical - Generator & Alternator", "via": "sibling", "answer_title": "Synchroscope — construction, working and purpose", "cross_family": false }, { "answer_id": "HV-SYS-P05-002", "score": 0.5793799161911011, "sibling_score": 0.5793799161911011, "answer_score": 0.4762406051158905, "sibling_qid": "KOC-2026-05-0028-Q014", "sibling_text": "high voltage equipment maintenance you are about to carry out what you will do first internal ques", "sibling_family": "Electrical - High Voltage", "via": "sibling", "answer_title": "Working on the HV system: precautions, isolation and earthing before maintenance", "cross_family": true } ] }, { "qid": "NOI-2026-09-0029-Q004", "text": "ACB maintenance? steps by step ?", "family": "Electrical - Switchgear & Protection", "subtopic": "Circuit Breakers (ACB / VCB / SF6)", "tid": "NOI-2026-09-0029", "tray": "new", "candidates": [ { "answer_id": "CB033-C-001", "score": 0.6383922696113586, "sibling_score": 0.6383922696113586, "answer_score": 0.41598923951387407, "sibling_qid": "MUM-2026-03-2012-Q008", "sibling_text": "acb maintenance", "sibling_family": "Electrical - Switchgear & Protection", "via": "sibling", "answer_title": "How do you carry out maintenance and testing on an ACB / main circuit breaker?", "cross_family": false }, { "answer_id": "EGCS-393-004", "score": 0.360996513068676, "sibling_score": null, "answer_score": 0.360996513068676, "sibling_qid": "", "sibling_text": "egcs maintenance and the safety arrangements to work on it routine maintenance nozzle and demister cleaning analyser sensor calibration ph turbidity so2 co2 pump and seal service naoh dosing system checks washwater treatment hydrocyclone sludge landed ashore inspection tower internals and packing maker class approved corrosion resistant linings alloys for example gre grp or high alloy for acid cor", "sibling_family": "", "via": "answer_title", "answer_title": "EGCS maintenance and the safety arrangements to work on it", "cross_family": false }, { "answer_id": "MGPS-004", "score": 0.35535338521003723, "sibling_score": null, "answer_score": 0.35535338521003723, "sibling_qid": "", "sibling_text": "maintenance checks on the mgps and what the mgps drawing should show inspect anodes for wastage renew at design consumption by the maker pms method refit any fitted protective caps or guards check strainers sea chest for copper deposits a sign of over current", "sibling_family": "", "via": "answer_title", "answer_title": "Maintenance checks on the MGPS, and what the MGPS drawing should show", "cross_family": false } ] }, { "qid": "NOI-2026-09-0029-Q006", "text": "What is analog signal why not 0 - 20 ma ?", "family": "Automation & Controls", "subtopic": "HART Protocol", "tid": "NOI-2026-09-0029", "tray": "review", "candidates": [ { "answer_id": "TPL-SENS-B-004", "score": 0.7903358936309814, "sibling_score": 0.7903358936309814, "answer_score": null, "sibling_qid": "MUM-2026-09-3931-Q001", "sibling_text": "analog signal why not 0 20 ma", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Shipboard T/P/L instrumentation — principles & the remote-indication chain", "cross_family": false }, { "answer_id": "TPL-SENS-B-002", "score": 0.5904944539070129, "sibling_score": 0.5904944539070129, "answer_score": 0.49866912961006166, "sibling_qid": "KOC-2026-05-0001-Q007", "sibling_text": "why 4 20 ma and why not voltage", "sibling_family": "Automation & Controls", "via": "sibling", "answer_title": "Sensors, transducers & transmitters — and why 4–20 mA", "cross_family": false }, { "answer_id": "TPL-SENS-004", "score": 0.588803231716156, "sibling_score": 0.588803231716156, "answer_score": 0.4801231354475021, "sibling_qid": "CHE-2025-11-0313-Q011", "sibling_text": "reason for 4to 20 ma signal is used why ampere why not voltage is", "sibling_family": "Electrical - Electronics & Power Conversion", "via": "sibling", "answer_title": "Why a 4-20 mA current signal instead of voltage", "cross_family": true } ] } ] }